Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
Reinette Chatre | 01f8162 | 2009-01-08 10:20:02 -0800 | [diff] [blame] | 3 | * Copyright(c) 2003 - 2009 Intel Corporation. All rights reserved. |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4 | * |
| 5 | * Portions of this file are derived from the ipw3945 project, as well |
| 6 | * as portions of the ieee80211 subsystem header files. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify it |
| 9 | * under the terms of version 2 of the GNU General Public License as |
| 10 | * published by the Free Software Foundation. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, but WITHOUT |
| 13 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 14 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 15 | * more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License along with |
| 18 | * this program; if not, write to the Free Software Foundation, Inc., |
| 19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA |
| 20 | * |
| 21 | * The full GNU General Public License is included in this distribution in the |
| 22 | * file called LICENSE. |
| 23 | * |
| 24 | * Contact Information: |
Winkler, Tomas | 759ef89 | 2008-12-09 11:28:58 -0800 | [diff] [blame] | 25 | * Intel Linux Wireless <ilw@linux.intel.com> |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 26 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| 27 | * |
| 28 | *****************************************************************************/ |
| 29 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 30 | #include <linux/kernel.h> |
| 31 | #include <linux/module.h> |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 32 | #include <linux/init.h> |
| 33 | #include <linux/pci.h> |
| 34 | #include <linux/dma-mapping.h> |
| 35 | #include <linux/delay.h> |
| 36 | #include <linux/skbuff.h> |
| 37 | #include <linux/netdevice.h> |
| 38 | #include <linux/wireless.h> |
| 39 | #include <linux/firmware.h> |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 40 | #include <linux/etherdevice.h> |
| 41 | #include <linux/if_arp.h> |
| 42 | |
| 43 | #include <net/ieee80211_radiotap.h> |
John W. Linville | 7e272fc | 2008-09-24 18:13:14 -0400 | [diff] [blame] | 44 | #include <net/lib80211.h> |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 45 | #include <net/mac80211.h> |
| 46 | |
| 47 | #include <asm/div64.h> |
| 48 | |
Samuel Ortiz | a3139c5 | 2008-12-19 10:37:09 +0800 | [diff] [blame] | 49 | #define DRV_NAME "iwl3945" |
| 50 | |
Winkler, Tomas | dbb6654 | 2008-12-22 11:31:14 +0800 | [diff] [blame] | 51 | #include "iwl-fh.h" |
| 52 | #include "iwl-3945-fh.h" |
Tomas Winkler | 600c0e1 | 2008-12-19 10:37:04 +0800 | [diff] [blame] | 53 | #include "iwl-commands.h" |
Samuel Ortiz | 17f841c | 2009-01-23 13:45:20 -0800 | [diff] [blame] | 54 | #include "iwl-sta.h" |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 55 | #include "iwl-3945.h" |
| 56 | #include "iwl-helpers.h" |
Kolekar, Abhijeet | 5747d47 | 2008-12-19 10:37:18 +0800 | [diff] [blame] | 57 | #include "iwl-core.h" |
Samuel Ortiz | d20b3c6 | 2008-12-19 10:37:15 +0800 | [diff] [blame] | 58 | #include "iwl-dev.h" |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 59 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 60 | /* |
| 61 | * module name, copyright, version, etc. |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 62 | */ |
| 63 | |
| 64 | #define DRV_DESCRIPTION \ |
| 65 | "Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux" |
| 66 | |
Samuel Ortiz | d08853a | 2009-01-23 13:45:17 -0800 | [diff] [blame] | 67 | #ifdef CONFIG_IWLWIFI_DEBUG |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 68 | #define VD "d" |
| 69 | #else |
| 70 | #define VD |
| 71 | #endif |
| 72 | |
Christoph Hellwig | c8b0e6e | 2007-10-25 17:15:51 +0800 | [diff] [blame] | 73 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 74 | #define VS "s" |
| 75 | #else |
| 76 | #define VS |
| 77 | #endif |
| 78 | |
Kolekar, Abhijeet | eaa686c | 2008-12-19 10:37:17 +0800 | [diff] [blame] | 79 | #define IWL39_VERSION "1.2.26k" VD VS |
Reinette Chatre | 01f8162 | 2009-01-08 10:20:02 -0800 | [diff] [blame] | 80 | #define DRV_COPYRIGHT "Copyright(c) 2003-2009 Intel Corporation" |
Tomas Winkler | a7b7520 | 2008-12-11 10:33:41 -0800 | [diff] [blame] | 81 | #define DRV_AUTHOR "<ilw@linux.intel.com>" |
Kolekar, Abhijeet | eaa686c | 2008-12-19 10:37:17 +0800 | [diff] [blame] | 82 | #define DRV_VERSION IWL39_VERSION |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 83 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 84 | |
| 85 | MODULE_DESCRIPTION(DRV_DESCRIPTION); |
| 86 | MODULE_VERSION(DRV_VERSION); |
Tomas Winkler | a7b7520 | 2008-12-11 10:33:41 -0800 | [diff] [blame] | 87 | MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 88 | MODULE_LICENSE("GPL"); |
| 89 | |
Kolekar, Abhijeet | df878d8 | 2008-12-19 10:37:35 +0800 | [diff] [blame] | 90 | /* module parameters */ |
| 91 | struct iwl_mod_params iwl3945_mod_params = { |
| 92 | .num_of_queues = IWL39_MAX_NUM_QUEUES, |
Samuel Ortiz | 9c74d9f | 2009-01-08 10:19:59 -0800 | [diff] [blame] | 93 | .sw_crypto = 1, |
Samuel Ortiz | af48d04 | 2009-01-23 13:45:19 -0800 | [diff] [blame] | 94 | .restart_fw = 1, |
Kolekar, Abhijeet | df878d8 | 2008-12-19 10:37:35 +0800 | [diff] [blame] | 95 | /* the rest are 0 by default */ |
| 96 | }; |
| 97 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 98 | /** |
Samuel Ortiz | 7e4bca5 | 2009-01-23 13:45:18 -0800 | [diff] [blame] | 99 | * iwl3945_get_antenna_flags - Get antenna flags for RXON command |
| 100 | * @priv: eeprom and antenna fields are used to determine antenna flags |
| 101 | * |
| 102 | * priv->eeprom39 is used to determine if antenna AUX/MAIN are reversed |
| 103 | * iwl3945_mod_params.antenna specifies the antenna diversity mode: |
| 104 | * |
| 105 | * IWL_ANTENNA_DIVERSITY - NIC selects best antenna by itself |
| 106 | * IWL_ANTENNA_MAIN - Force MAIN antenna |
| 107 | * IWL_ANTENNA_AUX - Force AUX antenna |
| 108 | */ |
| 109 | __le32 iwl3945_get_antenna_flags(const struct iwl_priv *priv) |
| 110 | { |
| 111 | struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom; |
| 112 | |
| 113 | switch (iwl3945_mod_params.antenna) { |
| 114 | case IWL_ANTENNA_DIVERSITY: |
| 115 | return 0; |
| 116 | |
| 117 | case IWL_ANTENNA_MAIN: |
| 118 | if (eeprom->antenna_switch_type) |
| 119 | return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_B_MSK; |
| 120 | return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_A_MSK; |
| 121 | |
| 122 | case IWL_ANTENNA_AUX: |
| 123 | if (eeprom->antenna_switch_type) |
| 124 | return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_A_MSK; |
| 125 | return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_B_MSK; |
| 126 | } |
| 127 | |
| 128 | /* bad antenna selector value */ |
| 129 | IWL_ERR(priv, "Bad antenna selector value (0x%x)\n", |
| 130 | iwl3945_mod_params.antenna); |
| 131 | |
| 132 | return 0; /* "diversity" is default if error */ |
| 133 | } |
| 134 | |
Abhijeet Kolekar | 6e21f15 | 2009-02-27 16:21:21 -0800 | [diff] [blame] | 135 | static int iwl3945_set_ccmp_dynamic_key_info(struct iwl_priv *priv, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 136 | struct ieee80211_key_conf *keyconf, |
| 137 | u8 sta_id) |
| 138 | { |
| 139 | unsigned long flags; |
| 140 | __le16 key_flags = 0; |
Abhijeet Kolekar | 6e21f15 | 2009-02-27 16:21:21 -0800 | [diff] [blame] | 141 | int ret; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 142 | |
Abhijeet Kolekar | 6e21f15 | 2009-02-27 16:21:21 -0800 | [diff] [blame] | 143 | key_flags |= (STA_KEY_FLG_CCMP | STA_KEY_FLG_MAP_KEY_MSK); |
| 144 | key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); |
| 145 | |
| 146 | if (sta_id == priv->hw_params.bcast_sta_id) |
| 147 | key_flags |= STA_KEY_MULTICAST_MSK; |
| 148 | |
| 149 | keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; |
| 150 | keyconf->hw_key_idx = keyconf->keyidx; |
| 151 | key_flags &= ~STA_KEY_FLG_INVALID; |
| 152 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 153 | spin_lock_irqsave(&priv->sta_lock, flags); |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 154 | priv->stations[sta_id].keyinfo.alg = keyconf->alg; |
| 155 | priv->stations[sta_id].keyinfo.keylen = keyconf->keylen; |
| 156 | memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 157 | keyconf->keylen); |
| 158 | |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 159 | memcpy(priv->stations[sta_id].sta.key.key, keyconf->key, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 160 | keyconf->keylen); |
Abhijeet Kolekar | 6e21f15 | 2009-02-27 16:21:21 -0800 | [diff] [blame] | 161 | |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 162 | if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK) |
Abhijeet Kolekar | 6e21f15 | 2009-02-27 16:21:21 -0800 | [diff] [blame] | 163 | == STA_KEY_FLG_NO_ENC) |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 164 | priv->stations[sta_id].sta.key.key_offset = |
Abhijeet Kolekar | 6e21f15 | 2009-02-27 16:21:21 -0800 | [diff] [blame] | 165 | iwl_get_free_ucode_key_index(priv); |
| 166 | /* else, we are overriding an existing key => no need to allocated room |
| 167 | * in uCode. */ |
| 168 | |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 169 | WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET, |
Abhijeet Kolekar | 6e21f15 | 2009-02-27 16:21:21 -0800 | [diff] [blame] | 170 | "no space for a new key"); |
| 171 | |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 172 | priv->stations[sta_id].sta.key.key_flags = key_flags; |
| 173 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; |
| 174 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 175 | |
Abhijeet Kolekar | 6e21f15 | 2009-02-27 16:21:21 -0800 | [diff] [blame] | 176 | IWL_DEBUG_INFO(priv, "hwcrypto: modify ucode station key info\n"); |
| 177 | |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 178 | ret = iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); |
Abhijeet Kolekar | 6e21f15 | 2009-02-27 16:21:21 -0800 | [diff] [blame] | 179 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 180 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 181 | |
Abhijeet Kolekar | 6e21f15 | 2009-02-27 16:21:21 -0800 | [diff] [blame] | 182 | return ret; |
| 183 | } |
| 184 | |
| 185 | static int iwl3945_set_tkip_dynamic_key_info(struct iwl_priv *priv, |
| 186 | struct ieee80211_key_conf *keyconf, |
| 187 | u8 sta_id) |
| 188 | { |
| 189 | return -EOPNOTSUPP; |
| 190 | } |
| 191 | |
| 192 | static int iwl3945_set_wep_dynamic_key_info(struct iwl_priv *priv, |
| 193 | struct ieee80211_key_conf *keyconf, |
| 194 | u8 sta_id) |
| 195 | { |
| 196 | return -EOPNOTSUPP; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 197 | } |
| 198 | |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 199 | static int iwl3945_clear_sta_key_info(struct iwl_priv *priv, u8 sta_id) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 200 | { |
| 201 | unsigned long flags; |
| 202 | |
| 203 | spin_lock_irqsave(&priv->sta_lock, flags); |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 204 | memset(&priv->stations[sta_id].keyinfo, 0, sizeof(struct iwl_hw_key)); |
| 205 | memset(&priv->stations[sta_id].sta.key, 0, |
Tomas Winkler | 4c89725 | 2008-12-19 10:37:05 +0800 | [diff] [blame] | 206 | sizeof(struct iwl4965_keyinfo)); |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 207 | priv->stations[sta_id].sta.key.key_flags = STA_KEY_FLG_NO_ENC; |
| 208 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; |
| 209 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 210 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 211 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 212 | IWL_DEBUG_INFO(priv, "hwcrypto: clear ucode station key info\n"); |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 213 | iwl_send_add_sta(priv, &priv->stations[sta_id].sta, 0); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 214 | return 0; |
| 215 | } |
| 216 | |
Abhijeet Kolekar | fa11d52 | 2009-03-11 11:17:54 -0700 | [diff] [blame] | 217 | static int iwl3945_set_dynamic_key(struct iwl_priv *priv, |
Abhijeet Kolekar | 6e21f15 | 2009-02-27 16:21:21 -0800 | [diff] [blame] | 218 | struct ieee80211_key_conf *keyconf, u8 sta_id) |
| 219 | { |
| 220 | int ret = 0; |
| 221 | |
| 222 | keyconf->hw_key_idx = HW_KEY_DYNAMIC; |
| 223 | |
| 224 | switch (keyconf->alg) { |
| 225 | case ALG_CCMP: |
| 226 | ret = iwl3945_set_ccmp_dynamic_key_info(priv, keyconf, sta_id); |
| 227 | break; |
| 228 | case ALG_TKIP: |
| 229 | ret = iwl3945_set_tkip_dynamic_key_info(priv, keyconf, sta_id); |
| 230 | break; |
| 231 | case ALG_WEP: |
| 232 | ret = iwl3945_set_wep_dynamic_key_info(priv, keyconf, sta_id); |
| 233 | break; |
| 234 | default: |
Abhijeet Kolekar | 1e68023 | 2009-03-17 21:51:50 -0700 | [diff] [blame] | 235 | IWL_ERR(priv, "Unknown alg: %s alg = %d\n", __func__, keyconf->alg); |
Abhijeet Kolekar | 6e21f15 | 2009-02-27 16:21:21 -0800 | [diff] [blame] | 236 | ret = -EINVAL; |
| 237 | } |
| 238 | |
| 239 | IWL_DEBUG_WEP(priv, "Set dynamic key: alg= %d len=%d idx=%d sta=%d ret=%d\n", |
| 240 | keyconf->alg, keyconf->keylen, keyconf->keyidx, |
| 241 | sta_id, ret); |
| 242 | |
| 243 | return ret; |
| 244 | } |
| 245 | |
| 246 | static int iwl3945_remove_static_key(struct iwl_priv *priv) |
| 247 | { |
| 248 | int ret = -EOPNOTSUPP; |
| 249 | |
| 250 | return ret; |
| 251 | } |
| 252 | |
| 253 | static int iwl3945_set_static_key(struct iwl_priv *priv, |
| 254 | struct ieee80211_key_conf *key) |
| 255 | { |
| 256 | if (key->alg == ALG_WEP) |
| 257 | return -EOPNOTSUPP; |
| 258 | |
| 259 | IWL_ERR(priv, "Static key invalid: alg %d\n", key->alg); |
| 260 | return -EINVAL; |
| 261 | } |
| 262 | |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 263 | static void iwl3945_clear_free_frames(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 264 | { |
| 265 | struct list_head *element; |
| 266 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 267 | IWL_DEBUG_INFO(priv, "%d frames on pre-allocated heap on clear.\n", |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 268 | priv->frames_count); |
| 269 | |
| 270 | while (!list_empty(&priv->free_frames)) { |
| 271 | element = priv->free_frames.next; |
| 272 | list_del(element); |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 273 | kfree(list_entry(element, struct iwl3945_frame, list)); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 274 | priv->frames_count--; |
| 275 | } |
| 276 | |
| 277 | if (priv->frames_count) { |
Winkler, Tomas | 39aadf8 | 2008-12-19 10:37:32 +0800 | [diff] [blame] | 278 | IWL_WARN(priv, "%d frames still in use. Did we lose one?\n", |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 279 | priv->frames_count); |
| 280 | priv->frames_count = 0; |
| 281 | } |
| 282 | } |
| 283 | |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 284 | static struct iwl3945_frame *iwl3945_get_free_frame(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 285 | { |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 286 | struct iwl3945_frame *frame; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 287 | struct list_head *element; |
| 288 | if (list_empty(&priv->free_frames)) { |
| 289 | frame = kzalloc(sizeof(*frame), GFP_KERNEL); |
| 290 | if (!frame) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 291 | IWL_ERR(priv, "Could not allocate frame!\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 292 | return NULL; |
| 293 | } |
| 294 | |
| 295 | priv->frames_count++; |
| 296 | return frame; |
| 297 | } |
| 298 | |
| 299 | element = priv->free_frames.next; |
| 300 | list_del(element); |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 301 | return list_entry(element, struct iwl3945_frame, list); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 302 | } |
| 303 | |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 304 | static void iwl3945_free_frame(struct iwl_priv *priv, struct iwl3945_frame *frame) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 305 | { |
| 306 | memset(frame, 0, sizeof(*frame)); |
| 307 | list_add(&frame->list, &priv->free_frames); |
| 308 | } |
| 309 | |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 310 | unsigned int iwl3945_fill_beacon_frame(struct iwl_priv *priv, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 311 | struct ieee80211_hdr *hdr, |
Rami Rosen | 73ec1cc | 2008-12-16 09:37:07 +0200 | [diff] [blame] | 312 | int left) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 313 | { |
| 314 | |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 315 | if (!iwl_is_associated(priv) || !priv->ibss_beacon || |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 316 | ((priv->iw_mode != NL80211_IFTYPE_ADHOC) && |
| 317 | (priv->iw_mode != NL80211_IFTYPE_AP))) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 318 | return 0; |
| 319 | |
| 320 | if (priv->ibss_beacon->len > left) |
| 321 | return 0; |
| 322 | |
| 323 | memcpy(hdr, priv->ibss_beacon->data, priv->ibss_beacon->len); |
| 324 | |
| 325 | return priv->ibss_beacon->len; |
| 326 | } |
| 327 | |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 328 | static int iwl3945_send_beacon_cmd(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 329 | { |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 330 | struct iwl3945_frame *frame; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 331 | unsigned int frame_size; |
| 332 | int rc; |
| 333 | u8 rate; |
| 334 | |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 335 | frame = iwl3945_get_free_frame(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 336 | |
| 337 | if (!frame) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 338 | IWL_ERR(priv, "Could not obtain free frame buffer for beacon " |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 339 | "command.\n"); |
| 340 | return -ENOMEM; |
| 341 | } |
| 342 | |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 343 | rate = iwl_rate_get_lowest_plcp(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 344 | |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 345 | frame_size = iwl3945_hw_get_beacon_cmd(priv, frame, rate); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 346 | |
Samuel Ortiz | 518099a | 2009-01-19 15:30:27 -0800 | [diff] [blame] | 347 | rc = iwl_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 348 | &frame->u.cmd[0]); |
| 349 | |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 350 | iwl3945_free_frame(priv, frame); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 351 | |
| 352 | return rc; |
| 353 | } |
| 354 | |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 355 | static void iwl3945_unset_hw_params(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 356 | { |
Abhijeet Kolekar | 3832ec9 | 2008-12-19 10:37:26 +0800 | [diff] [blame] | 357 | if (priv->shared_virt) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 358 | pci_free_consistent(priv->pci_dev, |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 359 | sizeof(struct iwl3945_shared), |
Abhijeet Kolekar | 3832ec9 | 2008-12-19 10:37:26 +0800 | [diff] [blame] | 360 | priv->shared_virt, |
| 361 | priv->shared_phys); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 362 | } |
| 363 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 364 | #define MAX_UCODE_BEACON_INTERVAL 1024 |
Harvey Harrison | c1b4aa3 | 2009-01-29 13:26:44 -0800 | [diff] [blame] | 365 | #define INTEL_CONN_LISTEN_INTERVAL cpu_to_le16(0xA) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 366 | |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 367 | static __le16 iwl3945_adjust_beacon_interval(u16 beacon_val) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 368 | { |
| 369 | u16 new_val = 0; |
| 370 | u16 beacon_factor = 0; |
| 371 | |
| 372 | beacon_factor = |
| 373 | (beacon_val + MAX_UCODE_BEACON_INTERVAL) |
| 374 | / MAX_UCODE_BEACON_INTERVAL; |
| 375 | new_val = beacon_val / beacon_factor; |
| 376 | |
| 377 | return cpu_to_le16(new_val); |
| 378 | } |
| 379 | |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 380 | static void iwl3945_setup_rxon_timing(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 381 | { |
| 382 | u64 interval_tm_unit; |
| 383 | u64 tsf, result; |
| 384 | unsigned long flags; |
| 385 | struct ieee80211_conf *conf = NULL; |
| 386 | u16 beacon_int = 0; |
| 387 | |
| 388 | conf = ieee80211_get_hw_conf(priv->hw); |
| 389 | |
| 390 | spin_lock_irqsave(&priv->lock, flags); |
Tomas Winkler | 28afaf9 | 2008-12-19 10:37:06 +0800 | [diff] [blame] | 391 | priv->rxon_timing.timestamp = cpu_to_le64(priv->timestamp); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 392 | priv->rxon_timing.listen_interval = INTEL_CONN_LISTEN_INTERVAL; |
| 393 | |
Tomas Winkler | 28afaf9 | 2008-12-19 10:37:06 +0800 | [diff] [blame] | 394 | tsf = priv->timestamp; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 395 | |
| 396 | beacon_int = priv->beacon_int; |
| 397 | spin_unlock_irqrestore(&priv->lock, flags); |
| 398 | |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 399 | if (priv->iw_mode == NL80211_IFTYPE_STATION) { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 400 | if (beacon_int == 0) { |
| 401 | priv->rxon_timing.beacon_interval = cpu_to_le16(100); |
| 402 | priv->rxon_timing.beacon_init_val = cpu_to_le32(102400); |
| 403 | } else { |
| 404 | priv->rxon_timing.beacon_interval = |
| 405 | cpu_to_le16(beacon_int); |
| 406 | priv->rxon_timing.beacon_interval = |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 407 | iwl3945_adjust_beacon_interval( |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 408 | le16_to_cpu(priv->rxon_timing.beacon_interval)); |
| 409 | } |
| 410 | |
| 411 | priv->rxon_timing.atim_window = 0; |
| 412 | } else { |
| 413 | priv->rxon_timing.beacon_interval = |
Johannes Berg | 57c4d7b | 2009-04-23 16:10:04 +0200 | [diff] [blame] | 414 | iwl3945_adjust_beacon_interval( |
| 415 | priv->vif->bss_conf.beacon_int); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 416 | /* TODO: we need to get atim_window from upper stack |
| 417 | * for now we set to 0 */ |
| 418 | priv->rxon_timing.atim_window = 0; |
| 419 | } |
| 420 | |
| 421 | interval_tm_unit = |
| 422 | (le16_to_cpu(priv->rxon_timing.beacon_interval) * 1024); |
| 423 | result = do_div(tsf, interval_tm_unit); |
| 424 | priv->rxon_timing.beacon_init_val = |
| 425 | cpu_to_le32((u32) ((u64) interval_tm_unit - result)); |
| 426 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 427 | IWL_DEBUG_ASSOC(priv, |
| 428 | "beacon interval %d beacon timer %d beacon tim %d\n", |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 429 | le16_to_cpu(priv->rxon_timing.beacon_interval), |
| 430 | le32_to_cpu(priv->rxon_timing.beacon_init_val), |
| 431 | le16_to_cpu(priv->rxon_timing.atim_window)); |
| 432 | } |
| 433 | |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 434 | static void iwl3945_build_tx_cmd_hwcrypto(struct iwl_priv *priv, |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 435 | struct ieee80211_tx_info *info, |
Winkler, Tomas | c2d79b4 | 2008-12-19 10:37:34 +0800 | [diff] [blame] | 436 | struct iwl_cmd *cmd, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 437 | struct sk_buff *skb_frag, |
Abhijeet Kolekar | 6e21f15 | 2009-02-27 16:21:21 -0800 | [diff] [blame] | 438 | int sta_id) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 439 | { |
Winkler, Tomas | e52119c | 2008-12-22 11:31:19 +0800 | [diff] [blame] | 440 | struct iwl3945_tx_cmd *tx = (struct iwl3945_tx_cmd *)cmd->cmd.payload; |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 441 | struct iwl_hw_key *keyinfo = &priv->stations[sta_id].keyinfo; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 442 | |
| 443 | switch (keyinfo->alg) { |
| 444 | case ALG_CCMP: |
Winkler, Tomas | e52119c | 2008-12-22 11:31:19 +0800 | [diff] [blame] | 445 | tx->sec_ctl = TX_CMD_SEC_CCM; |
| 446 | memcpy(tx->key, keyinfo->key, keyinfo->keylen); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 447 | IWL_DEBUG_TX(priv, "tx_cmd with AES hwcrypto\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 448 | break; |
| 449 | |
| 450 | case ALG_TKIP: |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 451 | break; |
| 452 | |
| 453 | case ALG_WEP: |
Winkler, Tomas | e52119c | 2008-12-22 11:31:19 +0800 | [diff] [blame] | 454 | tx->sec_ctl = TX_CMD_SEC_WEP | |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 455 | (info->control.hw_key->hw_key_idx & TX_CMD_SEC_MSK) << TX_CMD_SEC_SHIFT; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 456 | |
| 457 | if (keyinfo->keylen == 13) |
Winkler, Tomas | e52119c | 2008-12-22 11:31:19 +0800 | [diff] [blame] | 458 | tx->sec_ctl |= TX_CMD_SEC_KEY128; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 459 | |
Winkler, Tomas | e52119c | 2008-12-22 11:31:19 +0800 | [diff] [blame] | 460 | memcpy(&tx->key[3], keyinfo->key, keyinfo->keylen); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 461 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 462 | IWL_DEBUG_TX(priv, "Configuring packet for WEP encryption " |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 463 | "with key %d\n", info->control.hw_key->hw_key_idx); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 464 | break; |
| 465 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 466 | default: |
Tomas Winkler | 978785a | 2008-12-19 10:37:31 +0800 | [diff] [blame] | 467 | IWL_ERR(priv, "Unknown encode alg %d\n", keyinfo->alg); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 468 | break; |
| 469 | } |
| 470 | } |
| 471 | |
| 472 | /* |
| 473 | * handle build REPLY_TX command notification. |
| 474 | */ |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 475 | static void iwl3945_build_tx_cmd_basic(struct iwl_priv *priv, |
Winkler, Tomas | c2d79b4 | 2008-12-19 10:37:34 +0800 | [diff] [blame] | 476 | struct iwl_cmd *cmd, |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 477 | struct ieee80211_tx_info *info, |
Winkler, Tomas | e52119c | 2008-12-22 11:31:19 +0800 | [diff] [blame] | 478 | struct ieee80211_hdr *hdr, u8 std_id) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 479 | { |
Winkler, Tomas | e52119c | 2008-12-22 11:31:19 +0800 | [diff] [blame] | 480 | struct iwl3945_tx_cmd *tx = (struct iwl3945_tx_cmd *)cmd->cmd.payload; |
| 481 | __le32 tx_flags = tx->tx_flags; |
Harvey Harrison | fd7c8a4 | 2008-06-11 14:21:56 -0700 | [diff] [blame] | 482 | __le16 fc = hdr->frame_control; |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 483 | u8 rc_flags = info->control.rates[0].flags; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 484 | |
Winkler, Tomas | e52119c | 2008-12-22 11:31:19 +0800 | [diff] [blame] | 485 | tx->stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 486 | if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 487 | tx_flags |= TX_CMD_FLG_ACK_MSK; |
Harvey Harrison | fd7c8a4 | 2008-06-11 14:21:56 -0700 | [diff] [blame] | 488 | if (ieee80211_is_mgmt(fc)) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 489 | tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; |
Harvey Harrison | fd7c8a4 | 2008-06-11 14:21:56 -0700 | [diff] [blame] | 490 | if (ieee80211_is_probe_resp(fc) && |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 491 | !(le16_to_cpu(hdr->seq_ctrl) & 0xf)) |
| 492 | tx_flags |= TX_CMD_FLG_TSF_MSK; |
| 493 | } else { |
| 494 | tx_flags &= (~TX_CMD_FLG_ACK_MSK); |
| 495 | tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; |
| 496 | } |
| 497 | |
Winkler, Tomas | e52119c | 2008-12-22 11:31:19 +0800 | [diff] [blame] | 498 | tx->sta_id = std_id; |
Harvey Harrison | 8b7b1e0 | 2008-06-11 14:21:56 -0700 | [diff] [blame] | 499 | if (ieee80211_has_morefrags(fc)) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 500 | tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK; |
| 501 | |
Harvey Harrison | fd7c8a4 | 2008-06-11 14:21:56 -0700 | [diff] [blame] | 502 | if (ieee80211_is_data_qos(fc)) { |
| 503 | u8 *qc = ieee80211_get_qos_ctl(hdr); |
Winkler, Tomas | e52119c | 2008-12-22 11:31:19 +0800 | [diff] [blame] | 504 | tx->tid_tspec = qc[0] & 0xf; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 505 | tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK; |
Tomas Winkler | 54dbb52 | 2008-05-15 13:54:06 +0800 | [diff] [blame] | 506 | } else { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 507 | tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; |
Tomas Winkler | 54dbb52 | 2008-05-15 13:54:06 +0800 | [diff] [blame] | 508 | } |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 509 | |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 510 | if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 511 | tx_flags |= TX_CMD_FLG_RTS_MSK; |
| 512 | tx_flags &= ~TX_CMD_FLG_CTS_MSK; |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 513 | } else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 514 | tx_flags &= ~TX_CMD_FLG_RTS_MSK; |
| 515 | tx_flags |= TX_CMD_FLG_CTS_MSK; |
| 516 | } |
| 517 | |
| 518 | if ((tx_flags & TX_CMD_FLG_RTS_MSK) || (tx_flags & TX_CMD_FLG_CTS_MSK)) |
| 519 | tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK; |
| 520 | |
| 521 | tx_flags &= ~(TX_CMD_FLG_ANT_SEL_MSK); |
Harvey Harrison | fd7c8a4 | 2008-06-11 14:21:56 -0700 | [diff] [blame] | 522 | if (ieee80211_is_mgmt(fc)) { |
| 523 | if (ieee80211_is_assoc_req(fc) || ieee80211_is_reassoc_req(fc)) |
Winkler, Tomas | e52119c | 2008-12-22 11:31:19 +0800 | [diff] [blame] | 524 | tx->timeout.pm_frame_timeout = cpu_to_le16(3); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 525 | else |
Winkler, Tomas | e52119c | 2008-12-22 11:31:19 +0800 | [diff] [blame] | 526 | tx->timeout.pm_frame_timeout = cpu_to_le16(2); |
Mohamed Abbas | ab53d8a | 2008-03-25 16:33:36 -0700 | [diff] [blame] | 527 | } else { |
Winkler, Tomas | e52119c | 2008-12-22 11:31:19 +0800 | [diff] [blame] | 528 | tx->timeout.pm_frame_timeout = 0; |
Abhijeet Kolekar | 5c8df2d | 2009-03-11 11:17:55 -0700 | [diff] [blame] | 529 | #ifdef CONFIG_IWLWIFI_LEDS |
Mohamed Abbas | ab53d8a | 2008-03-25 16:33:36 -0700 | [diff] [blame] | 530 | priv->rxtxpackets += le16_to_cpu(cmd->cmd.tx.len); |
| 531 | #endif |
| 532 | } |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 533 | |
Winkler, Tomas | e52119c | 2008-12-22 11:31:19 +0800 | [diff] [blame] | 534 | tx->driver_txop = 0; |
| 535 | tx->tx_flags = tx_flags; |
| 536 | tx->next_frame_len = 0; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 537 | } |
| 538 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 539 | /* |
| 540 | * start REPLY_TX command process |
| 541 | */ |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 542 | static int iwl3945_tx_skb(struct iwl_priv *priv, struct sk_buff *skb) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 543 | { |
| 544 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 545 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
Winkler, Tomas | e52119c | 2008-12-22 11:31:19 +0800 | [diff] [blame] | 546 | struct iwl3945_tx_cmd *tx; |
Samuel Ortiz | 188cf6c | 2008-12-22 11:31:16 +0800 | [diff] [blame] | 547 | struct iwl_tx_queue *txq = NULL; |
Samuel Ortiz | d20b3c6 | 2008-12-19 10:37:15 +0800 | [diff] [blame] | 548 | struct iwl_queue *q = NULL; |
Winkler, Tomas | e52119c | 2008-12-22 11:31:19 +0800 | [diff] [blame] | 549 | struct iwl_cmd *out_cmd = NULL; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 550 | dma_addr_t phys_addr; |
| 551 | dma_addr_t txcmd_phys; |
Winkler, Tomas | e52119c | 2008-12-22 11:31:19 +0800 | [diff] [blame] | 552 | int txq_id = skb_get_queue_mapping(skb); |
Reinette Chatre | df833b1 | 2009-04-21 10:55:48 -0700 | [diff] [blame] | 553 | u16 len, idx, len_org, hdr_len; /* TODO: len_org is not used */ |
Tomas Winkler | 54dbb52 | 2008-05-15 13:54:06 +0800 | [diff] [blame] | 554 | u8 id; |
| 555 | u8 unicast; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 556 | u8 sta_id; |
Tomas Winkler | 54dbb52 | 2008-05-15 13:54:06 +0800 | [diff] [blame] | 557 | u8 tid = 0; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 558 | u16 seq_number = 0; |
Harvey Harrison | fd7c8a4 | 2008-06-11 14:21:56 -0700 | [diff] [blame] | 559 | __le16 fc; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 560 | u8 wait_write_ptr = 0; |
Tomas Winkler | 54dbb52 | 2008-05-15 13:54:06 +0800 | [diff] [blame] | 561 | u8 *qc = NULL; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 562 | unsigned long flags; |
| 563 | int rc; |
| 564 | |
| 565 | spin_lock_irqsave(&priv->lock, flags); |
Kolekar, Abhijeet | 775a6e2 | 2008-12-19 10:37:36 +0800 | [diff] [blame] | 566 | if (iwl_is_rfkill(priv)) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 567 | IWL_DEBUG_DROP(priv, "Dropping - RF KILL\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 568 | goto drop_unlock; |
| 569 | } |
| 570 | |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 571 | if ((ieee80211_get_tx_rate(priv->hw, info)->hw_value & 0xFF) == IWL_INVALID_RATE) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 572 | IWL_ERR(priv, "ERROR: No TX rate available.\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 573 | goto drop_unlock; |
| 574 | } |
| 575 | |
| 576 | unicast = !is_multicast_ether_addr(hdr->addr1); |
| 577 | id = 0; |
| 578 | |
Harvey Harrison | fd7c8a4 | 2008-06-11 14:21:56 -0700 | [diff] [blame] | 579 | fc = hdr->frame_control; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 580 | |
Samuel Ortiz | d08853a | 2009-01-23 13:45:17 -0800 | [diff] [blame] | 581 | #ifdef CONFIG_IWLWIFI_DEBUG |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 582 | if (ieee80211_is_auth(fc)) |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 583 | IWL_DEBUG_TX(priv, "Sending AUTH frame\n"); |
Harvey Harrison | fd7c8a4 | 2008-06-11 14:21:56 -0700 | [diff] [blame] | 584 | else if (ieee80211_is_assoc_req(fc)) |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 585 | IWL_DEBUG_TX(priv, "Sending ASSOC frame\n"); |
Harvey Harrison | fd7c8a4 | 2008-06-11 14:21:56 -0700 | [diff] [blame] | 586 | else if (ieee80211_is_reassoc_req(fc)) |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 587 | IWL_DEBUG_TX(priv, "Sending REASSOC frame\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 588 | #endif |
| 589 | |
Mohamed Abbas | 7878a5a | 2007-11-29 11:10:13 +0800 | [diff] [blame] | 590 | /* drop all data frame if we are not associated */ |
Stefanik Gábor | 914233d | 2008-06-30 17:23:30 +0800 | [diff] [blame] | 591 | if (ieee80211_is_data(fc) && |
Wey-Yi Guy | 279b05d | 2009-04-20 14:37:00 -0700 | [diff] [blame] | 592 | (!iwl_is_monitor_mode(priv)) && /* packet injection */ |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 593 | (!iwl_is_associated(priv) || |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 594 | ((priv->iw_mode == NL80211_IFTYPE_STATION) && !priv->assoc_id))) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 595 | IWL_DEBUG_DROP(priv, "Dropping - !iwl_is_associated\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 596 | goto drop_unlock; |
| 597 | } |
| 598 | |
| 599 | spin_unlock_irqrestore(&priv->lock, flags); |
| 600 | |
Harvey Harrison | 7294ec9 | 2008-07-15 18:43:59 -0700 | [diff] [blame] | 601 | hdr_len = ieee80211_hdrlen(fc); |
Cahill, Ben M | 6440adb | 2007-11-29 11:09:55 +0800 | [diff] [blame] | 602 | |
| 603 | /* Find (or create) index into station table for destination station */ |
Abhijeet Kolekar | f5d3026 | 2009-04-08 11:26:43 -0700 | [diff] [blame] | 604 | sta_id = iwl_get_sta_id(priv, hdr); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 605 | if (sta_id == IWL_INVALID_STATION) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 606 | IWL_DEBUG_DROP(priv, "Dropping - INVALID STATION: %pM\n", |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 607 | hdr->addr1); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 608 | goto drop; |
| 609 | } |
| 610 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 611 | IWL_DEBUG_RATE(priv, "station Id %d\n", sta_id); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 612 | |
Harvey Harrison | fd7c8a4 | 2008-06-11 14:21:56 -0700 | [diff] [blame] | 613 | if (ieee80211_is_data_qos(fc)) { |
| 614 | qc = ieee80211_get_qos_ctl(hdr); |
Harvey Harrison | 7294ec9 | 2008-07-15 18:43:59 -0700 | [diff] [blame] | 615 | tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK; |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 616 | seq_number = priv->stations[sta_id].tid[tid].seq_number & |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 617 | IEEE80211_SCTL_SEQ; |
| 618 | hdr->seq_ctrl = cpu_to_le16(seq_number) | |
| 619 | (hdr->seq_ctrl & |
Harvey Harrison | c1b4aa3 | 2009-01-29 13:26:44 -0800 | [diff] [blame] | 620 | cpu_to_le16(IEEE80211_SCTL_FRAG)); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 621 | seq_number += 0x10; |
| 622 | } |
Cahill, Ben M | 6440adb | 2007-11-29 11:09:55 +0800 | [diff] [blame] | 623 | |
| 624 | /* Descriptor for chosen Tx queue */ |
Samuel Ortiz | 188cf6c | 2008-12-22 11:31:16 +0800 | [diff] [blame] | 625 | txq = &priv->txq[txq_id]; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 626 | q = &txq->q; |
| 627 | |
| 628 | spin_lock_irqsave(&priv->lock, flags); |
| 629 | |
Tomas Winkler | fc4b685 | 2007-10-25 17:15:24 +0800 | [diff] [blame] | 630 | idx = get_cmd_index(q, q->write_ptr, 0); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 631 | |
Cahill, Ben M | 6440adb | 2007-11-29 11:09:55 +0800 | [diff] [blame] | 632 | /* Set up driver data for this TFD */ |
Winkler, Tomas | dbb6654 | 2008-12-22 11:31:14 +0800 | [diff] [blame] | 633 | memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct iwl_tx_info)); |
Tomas Winkler | fc4b685 | 2007-10-25 17:15:24 +0800 | [diff] [blame] | 634 | txq->txb[q->write_ptr].skb[0] = skb; |
Cahill, Ben M | 6440adb | 2007-11-29 11:09:55 +0800 | [diff] [blame] | 635 | |
| 636 | /* Init first empty entry in queue's array of Tx/cmd buffers */ |
Samuel Ortiz | 188cf6c | 2008-12-22 11:31:16 +0800 | [diff] [blame] | 637 | out_cmd = txq->cmd[idx]; |
Winkler, Tomas | e52119c | 2008-12-22 11:31:19 +0800 | [diff] [blame] | 638 | tx = (struct iwl3945_tx_cmd *)out_cmd->cmd.payload; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 639 | memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr)); |
Winkler, Tomas | e52119c | 2008-12-22 11:31:19 +0800 | [diff] [blame] | 640 | memset(tx, 0, sizeof(*tx)); |
Cahill, Ben M | 6440adb | 2007-11-29 11:09:55 +0800 | [diff] [blame] | 641 | |
| 642 | /* |
| 643 | * Set up the Tx-command (not MAC!) header. |
| 644 | * Store the chosen Tx queue and TFD index within the sequence field; |
| 645 | * after Tx, uCode's Tx response will return this value so driver can |
| 646 | * locate the frame within the tx queue and do post-tx processing. |
| 647 | */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 648 | out_cmd->hdr.cmd = REPLY_TX; |
| 649 | out_cmd->hdr.sequence = cpu_to_le16((u16)(QUEUE_TO_SEQ(txq_id) | |
Tomas Winkler | fc4b685 | 2007-10-25 17:15:24 +0800 | [diff] [blame] | 650 | INDEX_TO_SEQ(q->write_ptr))); |
Cahill, Ben M | 6440adb | 2007-11-29 11:09:55 +0800 | [diff] [blame] | 651 | |
| 652 | /* Copy MAC header from skb into command buffer */ |
Winkler, Tomas | e52119c | 2008-12-22 11:31:19 +0800 | [diff] [blame] | 653 | memcpy(tx->hdr, hdr, hdr_len); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 654 | |
Reinette Chatre | df833b1 | 2009-04-21 10:55:48 -0700 | [diff] [blame] | 655 | |
| 656 | if (info->control.hw_key) |
| 657 | iwl3945_build_tx_cmd_hwcrypto(priv, info, out_cmd, skb, sta_id); |
| 658 | |
| 659 | /* TODO need this for burst mode later on */ |
| 660 | iwl3945_build_tx_cmd_basic(priv, out_cmd, info, hdr, sta_id); |
| 661 | |
| 662 | /* set is_hcca to 0; it probably will never be implemented */ |
| 663 | iwl3945_hw_build_tx_cmd_rate(priv, out_cmd, info, hdr, sta_id, 0); |
| 664 | |
| 665 | /* Total # bytes to be transmitted */ |
| 666 | len = (u16)skb->len; |
| 667 | tx->len = cpu_to_le16(len); |
| 668 | |
| 669 | |
| 670 | tx->tx_flags &= ~TX_CMD_FLG_ANT_A_MSK; |
| 671 | tx->tx_flags &= ~TX_CMD_FLG_ANT_B_MSK; |
| 672 | |
| 673 | if (!ieee80211_has_morefrags(hdr->frame_control)) { |
| 674 | txq->need_update = 1; |
| 675 | if (qc) |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 676 | priv->stations[sta_id].tid[tid].seq_number = seq_number; |
Reinette Chatre | df833b1 | 2009-04-21 10:55:48 -0700 | [diff] [blame] | 677 | } else { |
| 678 | wait_write_ptr = 1; |
| 679 | txq->need_update = 0; |
| 680 | } |
| 681 | |
| 682 | IWL_DEBUG_TX(priv, "sequence nr = 0X%x \n", |
| 683 | le16_to_cpu(out_cmd->hdr.sequence)); |
| 684 | IWL_DEBUG_TX(priv, "tx_flags = 0X%x \n", le32_to_cpu(tx->tx_flags)); |
| 685 | iwl_print_hex_dump(priv, IWL_DL_TX, tx, sizeof(*tx)); |
| 686 | iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)tx->hdr, |
| 687 | ieee80211_hdrlen(fc)); |
| 688 | |
Cahill, Ben M | 6440adb | 2007-11-29 11:09:55 +0800 | [diff] [blame] | 689 | /* |
| 690 | * Use the first empty entry in this queue's command buffer array |
| 691 | * to contain the Tx command and MAC header concatenated together |
| 692 | * (payload data will be in another buffer). |
| 693 | * Size of this varies, due to varying MAC header length. |
| 694 | * If end is not dword aligned, we'll have 2 extra bytes at the end |
| 695 | * of the MAC header (device reads on dword boundaries). |
| 696 | * We'll tell device about this padding later. |
| 697 | */ |
Abhijeet Kolekar | 3832ec9 | 2008-12-19 10:37:26 +0800 | [diff] [blame] | 698 | len = sizeof(struct iwl3945_tx_cmd) + |
Tomas Winkler | 4c89725 | 2008-12-19 10:37:05 +0800 | [diff] [blame] | 699 | sizeof(struct iwl_cmd_header) + hdr_len; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 700 | |
| 701 | len_org = len; |
| 702 | len = (len + 3) & ~3; |
| 703 | |
| 704 | if (len_org != len) |
| 705 | len_org = 1; |
| 706 | else |
| 707 | len_org = 0; |
| 708 | |
Cahill, Ben M | 6440adb | 2007-11-29 11:09:55 +0800 | [diff] [blame] | 709 | /* Physical address of this Tx command's header (not MAC header!), |
| 710 | * within command buffer array. */ |
Reinette Chatre | df833b1 | 2009-04-21 10:55:48 -0700 | [diff] [blame] | 711 | txcmd_phys = pci_map_single(priv->pci_dev, &out_cmd->hdr, |
| 712 | len, PCI_DMA_TODEVICE); |
| 713 | /* we do not map meta data ... so we can safely access address to |
| 714 | * provide to unmap command*/ |
Samuel Ortiz | 188cf6c | 2008-12-22 11:31:16 +0800 | [diff] [blame] | 715 | pci_unmap_addr_set(&out_cmd->meta, mapping, txcmd_phys); |
Reinette Chatre | df833b1 | 2009-04-21 10:55:48 -0700 | [diff] [blame] | 716 | pci_unmap_len_set(&out_cmd->meta, len, len); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 717 | |
Cahill, Ben M | 6440adb | 2007-11-29 11:09:55 +0800 | [diff] [blame] | 718 | /* Add buffer containing Tx command and MAC(!) header to TFD's |
| 719 | * first entry */ |
Samuel Ortiz | 7aaa1d7 | 2009-01-19 15:30:26 -0800 | [diff] [blame] | 720 | priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq, |
| 721 | txcmd_phys, len, 1, 0); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 722 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 723 | |
Cahill, Ben M | 6440adb | 2007-11-29 11:09:55 +0800 | [diff] [blame] | 724 | /* Set up TFD's 2nd entry to point directly to remainder of skb, |
| 725 | * if any (802.11 null frames have no payload). */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 726 | len = skb->len - hdr_len; |
| 727 | if (len) { |
| 728 | phys_addr = pci_map_single(priv->pci_dev, skb->data + hdr_len, |
| 729 | len, PCI_DMA_TODEVICE); |
Samuel Ortiz | 7aaa1d7 | 2009-01-19 15:30:26 -0800 | [diff] [blame] | 730 | priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq, |
| 731 | phys_addr, len, |
| 732 | 0, U32_PAD(len)); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 733 | } |
| 734 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 735 | |
Cahill, Ben M | 6440adb | 2007-11-29 11:09:55 +0800 | [diff] [blame] | 736 | /* Tell device the write index *just past* this latest filled TFD */ |
Tomas Winkler | c54b679 | 2008-03-06 17:36:53 -0800 | [diff] [blame] | 737 | q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd); |
Samuel Ortiz | 4f3602c | 2009-01-19 15:30:25 -0800 | [diff] [blame] | 738 | rc = iwl_txq_update_write_ptr(priv, txq); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 739 | spin_unlock_irqrestore(&priv->lock, flags); |
| 740 | |
| 741 | if (rc) |
| 742 | return rc; |
| 743 | |
Samuel Ortiz | d20b3c6 | 2008-12-19 10:37:15 +0800 | [diff] [blame] | 744 | if ((iwl_queue_space(q) < q->high_mark) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 745 | && priv->mac80211_registered) { |
| 746 | if (wait_write_ptr) { |
| 747 | spin_lock_irqsave(&priv->lock, flags); |
| 748 | txq->need_update = 1; |
Samuel Ortiz | 4f3602c | 2009-01-19 15:30:25 -0800 | [diff] [blame] | 749 | iwl_txq_update_write_ptr(priv, txq); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 750 | spin_unlock_irqrestore(&priv->lock, flags); |
| 751 | } |
| 752 | |
Johannes Berg | e4e72fb | 2009-03-23 17:28:42 +0100 | [diff] [blame] | 753 | iwl_stop_queue(priv, skb_get_queue_mapping(skb)); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 754 | } |
| 755 | |
| 756 | return 0; |
| 757 | |
| 758 | drop_unlock: |
| 759 | spin_unlock_irqrestore(&priv->lock, flags); |
| 760 | drop: |
| 761 | return -1; |
| 762 | } |
| 763 | |
Christoph Hellwig | c8b0e6e | 2007-10-25 17:15:51 +0800 | [diff] [blame] | 764 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 765 | |
| 766 | #include "iwl-spectrum.h" |
| 767 | |
| 768 | #define BEACON_TIME_MASK_LOW 0x00FFFFFF |
| 769 | #define BEACON_TIME_MASK_HIGH 0xFF000000 |
| 770 | #define TIME_UNIT 1024 |
| 771 | |
| 772 | /* |
| 773 | * extended beacon time format |
| 774 | * time in usec will be changed into a 32-bit value in 8:24 format |
| 775 | * the high 1 byte is the beacon counts |
| 776 | * the lower 3 bytes is the time in usec within one beacon interval |
| 777 | */ |
| 778 | |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 779 | static u32 iwl3945_usecs_to_beacons(u32 usec, u32 beacon_interval) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 780 | { |
| 781 | u32 quot; |
| 782 | u32 rem; |
| 783 | u32 interval = beacon_interval * 1024; |
| 784 | |
| 785 | if (!interval || !usec) |
| 786 | return 0; |
| 787 | |
| 788 | quot = (usec / interval) & (BEACON_TIME_MASK_HIGH >> 24); |
| 789 | rem = (usec % interval) & BEACON_TIME_MASK_LOW; |
| 790 | |
| 791 | return (quot << 24) + rem; |
| 792 | } |
| 793 | |
| 794 | /* base is usually what we get from ucode with each received frame, |
| 795 | * the same as HW timer counter counting down |
| 796 | */ |
| 797 | |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 798 | static __le32 iwl3945_add_beacon_time(u32 base, u32 addon, u32 beacon_interval) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 799 | { |
| 800 | u32 base_low = base & BEACON_TIME_MASK_LOW; |
| 801 | u32 addon_low = addon & BEACON_TIME_MASK_LOW; |
| 802 | u32 interval = beacon_interval * TIME_UNIT; |
| 803 | u32 res = (base & BEACON_TIME_MASK_HIGH) + |
| 804 | (addon & BEACON_TIME_MASK_HIGH); |
| 805 | |
| 806 | if (base_low > addon_low) |
| 807 | res += base_low - addon_low; |
| 808 | else if (base_low < addon_low) { |
| 809 | res += interval + base_low - addon_low; |
| 810 | res += (1 << 24); |
| 811 | } else |
| 812 | res += (1 << 24); |
| 813 | |
| 814 | return cpu_to_le32(res); |
| 815 | } |
| 816 | |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 817 | static int iwl3945_get_measurement(struct iwl_priv *priv, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 818 | struct ieee80211_measurement_params *params, |
| 819 | u8 type) |
| 820 | { |
Tomas Winkler | 600c0e1 | 2008-12-19 10:37:04 +0800 | [diff] [blame] | 821 | struct iwl_spectrum_cmd spectrum; |
Tomas Winkler | 3d24a9f | 2008-12-19 10:37:07 +0800 | [diff] [blame] | 822 | struct iwl_rx_packet *res; |
Winkler, Tomas | c2d79b4 | 2008-12-19 10:37:34 +0800 | [diff] [blame] | 823 | struct iwl_host_cmd cmd = { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 824 | .id = REPLY_SPECTRUM_MEASUREMENT_CMD, |
| 825 | .data = (void *)&spectrum, |
| 826 | .meta.flags = CMD_WANT_SKB, |
| 827 | }; |
| 828 | u32 add_time = le64_to_cpu(params->start_time); |
| 829 | int rc; |
| 830 | int spectrum_resp_status; |
| 831 | int duration = le16_to_cpu(params->duration); |
| 832 | |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 833 | if (iwl_is_associated(priv)) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 834 | add_time = |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 835 | iwl3945_usecs_to_beacons( |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 836 | le64_to_cpu(params->start_time) - priv->last_tsf, |
| 837 | le16_to_cpu(priv->rxon_timing.beacon_interval)); |
| 838 | |
| 839 | memset(&spectrum, 0, sizeof(spectrum)); |
| 840 | |
| 841 | spectrum.channel_count = cpu_to_le16(1); |
| 842 | spectrum.flags = |
| 843 | RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK; |
| 844 | spectrum.filter_flags = MEASUREMENT_FILTER_FLAG; |
| 845 | cmd.len = sizeof(spectrum); |
| 846 | spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len)); |
| 847 | |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 848 | if (iwl_is_associated(priv)) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 849 | spectrum.start_time = |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 850 | iwl3945_add_beacon_time(priv->last_beacon_time, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 851 | add_time, |
| 852 | le16_to_cpu(priv->rxon_timing.beacon_interval)); |
| 853 | else |
| 854 | spectrum.start_time = 0; |
| 855 | |
| 856 | spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT); |
| 857 | spectrum.channels[0].channel = params->channel; |
| 858 | spectrum.channels[0].type = type; |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 859 | if (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 860 | spectrum.flags |= RXON_FLG_BAND_24G_MSK | |
| 861 | RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK; |
| 862 | |
Samuel Ortiz | 518099a | 2009-01-19 15:30:27 -0800 | [diff] [blame] | 863 | rc = iwl_send_cmd_sync(priv, &cmd); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 864 | if (rc) |
| 865 | return rc; |
| 866 | |
Tomas Winkler | 3d24a9f | 2008-12-19 10:37:07 +0800 | [diff] [blame] | 867 | res = (struct iwl_rx_packet *)cmd.meta.u.skb->data; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 868 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 869 | IWL_ERR(priv, "Bad return from REPLY_RX_ON_ASSOC command\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 870 | rc = -EIO; |
| 871 | } |
| 872 | |
| 873 | spectrum_resp_status = le16_to_cpu(res->u.spectrum.status); |
| 874 | switch (spectrum_resp_status) { |
| 875 | case 0: /* Command will be handled */ |
| 876 | if (res->u.spectrum.id != 0xff) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 877 | IWL_DEBUG_INFO(priv, "Replaced existing measurement: %d\n", |
Ian Schram | bc434dd | 2007-10-25 17:15:29 +0800 | [diff] [blame] | 878 | res->u.spectrum.id); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 879 | priv->measurement_status &= ~MEASUREMENT_READY; |
| 880 | } |
| 881 | priv->measurement_status |= MEASUREMENT_ACTIVE; |
| 882 | rc = 0; |
| 883 | break; |
| 884 | |
| 885 | case 1: /* Command will not be handled */ |
| 886 | rc = -EAGAIN; |
| 887 | break; |
| 888 | } |
| 889 | |
| 890 | dev_kfree_skb_any(cmd.meta.u.skb); |
| 891 | |
| 892 | return rc; |
| 893 | } |
| 894 | #endif |
| 895 | |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 896 | static void iwl3945_rx_reply_alive(struct iwl_priv *priv, |
Abhijeet Kolekar | 6100b58 | 2008-12-19 10:37:24 +0800 | [diff] [blame] | 897 | struct iwl_rx_mem_buffer *rxb) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 898 | { |
Tomas Winkler | 3d24a9f | 2008-12-19 10:37:07 +0800 | [diff] [blame] | 899 | struct iwl_rx_packet *pkt = (void *)rxb->skb->data; |
| 900 | struct iwl_alive_resp *palive; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 901 | struct delayed_work *pwork; |
| 902 | |
| 903 | palive = &pkt->u.alive_frame; |
| 904 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 905 | IWL_DEBUG_INFO(priv, "Alive ucode status 0x%08X revision " |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 906 | "0x%01X 0x%01X\n", |
| 907 | palive->is_valid, palive->ver_type, |
| 908 | palive->ver_subtype); |
| 909 | |
| 910 | if (palive->ver_subtype == INITIALIZE_SUBTYPE) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 911 | IWL_DEBUG_INFO(priv, "Initialization Alive received.\n"); |
Tomas Winkler | 3d24a9f | 2008-12-19 10:37:07 +0800 | [diff] [blame] | 912 | memcpy(&priv->card_alive_init, &pkt->u.alive_frame, |
| 913 | sizeof(struct iwl_alive_resp)); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 914 | pwork = &priv->init_alive_start; |
| 915 | } else { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 916 | IWL_DEBUG_INFO(priv, "Runtime Alive received.\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 917 | memcpy(&priv->card_alive, &pkt->u.alive_frame, |
Tomas Winkler | 3d24a9f | 2008-12-19 10:37:07 +0800 | [diff] [blame] | 918 | sizeof(struct iwl_alive_resp)); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 919 | pwork = &priv->alive_start; |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 920 | iwl3945_disable_events(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 921 | } |
| 922 | |
| 923 | /* We delay the ALIVE response by 5ms to |
| 924 | * give the HW RF Kill time to activate... */ |
| 925 | if (palive->is_valid == UCODE_VALID_OK) |
| 926 | queue_delayed_work(priv->workqueue, pwork, |
| 927 | msecs_to_jiffies(5)); |
| 928 | else |
Winkler, Tomas | 39aadf8 | 2008-12-19 10:37:32 +0800 | [diff] [blame] | 929 | IWL_WARN(priv, "uCode did not respond OK.\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 930 | } |
| 931 | |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 932 | static void iwl3945_rx_reply_add_sta(struct iwl_priv *priv, |
Abhijeet Kolekar | 6100b58 | 2008-12-19 10:37:24 +0800 | [diff] [blame] | 933 | struct iwl_rx_mem_buffer *rxb) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 934 | { |
Helmut Schaa | c7e035a | 2009-01-19 13:02:15 +0100 | [diff] [blame] | 935 | #ifdef CONFIG_IWLWIFI_DEBUG |
Tomas Winkler | 3d24a9f | 2008-12-19 10:37:07 +0800 | [diff] [blame] | 936 | struct iwl_rx_packet *pkt = (void *)rxb->skb->data; |
Helmut Schaa | c7e035a | 2009-01-19 13:02:15 +0100 | [diff] [blame] | 937 | #endif |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 938 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 939 | IWL_DEBUG_RX(priv, "Received REPLY_ADD_STA: 0x%02X\n", pkt->u.status); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 940 | return; |
| 941 | } |
| 942 | |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 943 | static void iwl3945_bg_beacon_update(struct work_struct *work) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 944 | { |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 945 | struct iwl_priv *priv = |
| 946 | container_of(work, struct iwl_priv, beacon_update); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 947 | struct sk_buff *beacon; |
| 948 | |
| 949 | /* Pull updated AP beacon from mac80211. will fail if not in AP mode */ |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 950 | beacon = ieee80211_beacon_get(priv->hw, priv->vif); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 951 | |
| 952 | if (!beacon) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 953 | IWL_ERR(priv, "update beacon failed\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 954 | return; |
| 955 | } |
| 956 | |
| 957 | mutex_lock(&priv->mutex); |
| 958 | /* new beacon skb is allocated every time; dispose previous.*/ |
| 959 | if (priv->ibss_beacon) |
| 960 | dev_kfree_skb(priv->ibss_beacon); |
| 961 | |
| 962 | priv->ibss_beacon = beacon; |
| 963 | mutex_unlock(&priv->mutex); |
| 964 | |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 965 | iwl3945_send_beacon_cmd(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 966 | } |
| 967 | |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 968 | static void iwl3945_rx_beacon_notif(struct iwl_priv *priv, |
Abhijeet Kolekar | 6100b58 | 2008-12-19 10:37:24 +0800 | [diff] [blame] | 969 | struct iwl_rx_mem_buffer *rxb) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 970 | { |
Samuel Ortiz | d08853a | 2009-01-23 13:45:17 -0800 | [diff] [blame] | 971 | #ifdef CONFIG_IWLWIFI_DEBUG |
Tomas Winkler | 3d24a9f | 2008-12-19 10:37:07 +0800 | [diff] [blame] | 972 | struct iwl_rx_packet *pkt = (void *)rxb->skb->data; |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 973 | struct iwl3945_beacon_notif *beacon = &(pkt->u.beacon_status); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 974 | u8 rate = beacon->beacon_notify_hdr.rate; |
| 975 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 976 | IWL_DEBUG_RX(priv, "beacon status %x retries %d iss %d " |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 977 | "tsf %d %d rate %d\n", |
| 978 | le32_to_cpu(beacon->beacon_notify_hdr.status) & TX_STATUS_MSK, |
| 979 | beacon->beacon_notify_hdr.failure_frame, |
| 980 | le32_to_cpu(beacon->ibss_mgr_status), |
| 981 | le32_to_cpu(beacon->high_tsf), |
| 982 | le32_to_cpu(beacon->low_tsf), rate); |
| 983 | #endif |
| 984 | |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 985 | if ((priv->iw_mode == NL80211_IFTYPE_AP) && |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 986 | (!test_bit(STATUS_EXIT_PENDING, &priv->status))) |
| 987 | queue_work(priv->workqueue, &priv->beacon_update); |
| 988 | } |
| 989 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 990 | /* Handle notification from uCode that card's power state is changing |
| 991 | * due to software, hardware, or critical temperature RFKILL */ |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 992 | static void iwl3945_rx_card_state_notif(struct iwl_priv *priv, |
Abhijeet Kolekar | 6100b58 | 2008-12-19 10:37:24 +0800 | [diff] [blame] | 993 | struct iwl_rx_mem_buffer *rxb) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 994 | { |
Tomas Winkler | 3d24a9f | 2008-12-19 10:37:07 +0800 | [diff] [blame] | 995 | struct iwl_rx_packet *pkt = (void *)rxb->skb->data; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 996 | u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags); |
| 997 | unsigned long status = priv->status; |
| 998 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 999 | IWL_DEBUG_RF_KILL(priv, "Card state received: HW:%s SW:%s\n", |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1000 | (flags & HW_CARD_DISABLED) ? "Kill" : "On", |
| 1001 | (flags & SW_CARD_DISABLED) ? "Kill" : "On"); |
| 1002 | |
Abhijeet Kolekar | 5d49f49 | 2008-12-19 10:37:29 +0800 | [diff] [blame] | 1003 | iwl_write32(priv, CSR_UCODE_DRV_GP1_SET, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1004 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
| 1005 | |
| 1006 | if (flags & HW_CARD_DISABLED) |
| 1007 | set_bit(STATUS_RF_KILL_HW, &priv->status); |
| 1008 | else |
| 1009 | clear_bit(STATUS_RF_KILL_HW, &priv->status); |
| 1010 | |
| 1011 | |
Winkler, Tomas | af0053d | 2009-01-19 15:30:23 -0800 | [diff] [blame] | 1012 | iwl_scan_cancel(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1013 | |
| 1014 | if ((test_bit(STATUS_RF_KILL_HW, &status) != |
Johannes Berg | a60e77e | 2009-06-04 18:26:06 +0200 | [diff] [blame] | 1015 | test_bit(STATUS_RF_KILL_HW, &priv->status))) |
| 1016 | wiphy_rfkill_set_hw_state(priv->hw->wiphy, |
| 1017 | test_bit(STATUS_RF_KILL_HW, &priv->status)); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1018 | else |
| 1019 | wake_up_interruptible(&priv->wait_command_queue); |
| 1020 | } |
| 1021 | |
| 1022 | /** |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 1023 | * iwl3945_setup_rx_handlers - Initialize Rx handler callbacks |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1024 | * |
| 1025 | * Setup the RX handlers for each of the reply types sent from the uCode |
| 1026 | * to the host. |
| 1027 | * |
| 1028 | * This function chains into the hardware specific files for them to setup |
| 1029 | * any hardware specific handlers as well. |
| 1030 | */ |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 1031 | static void iwl3945_setup_rx_handlers(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1032 | { |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 1033 | priv->rx_handlers[REPLY_ALIVE] = iwl3945_rx_reply_alive; |
| 1034 | priv->rx_handlers[REPLY_ADD_STA] = iwl3945_rx_reply_add_sta; |
Abhijeet Kolekar | 261b9c3 | 2009-02-18 15:54:29 -0800 | [diff] [blame] | 1035 | priv->rx_handlers[REPLY_ERROR] = iwl_rx_reply_error; |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 1036 | priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl_rx_csa; |
Abhijeet Kolekar | 030f05e | 2009-02-18 15:54:28 -0800 | [diff] [blame] | 1037 | priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl_rx_pm_sleep_notif; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1038 | priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] = |
Abhijeet Kolekar | 030f05e | 2009-02-18 15:54:28 -0800 | [diff] [blame] | 1039 | iwl_rx_pm_debug_statistics_notif; |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 1040 | priv->rx_handlers[BEACON_NOTIFICATION] = iwl3945_rx_beacon_notif; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1041 | |
Ben Cahill | 9fbab51 | 2007-11-29 11:09:47 +0800 | [diff] [blame] | 1042 | /* |
| 1043 | * The same handler is used for both the REPLY to a discrete |
| 1044 | * statistics request from the host as well as for the periodic |
| 1045 | * statistics notifications (after received beacons) from the uCode. |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1046 | */ |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 1047 | priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl3945_hw_rx_statistics; |
| 1048 | priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl3945_hw_rx_statistics; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1049 | |
Abhijeet Kolekar | 261b9c3 | 2009-02-18 15:54:29 -0800 | [diff] [blame] | 1050 | iwl_setup_spectrum_handlers(priv); |
Abhijeet Kolekar | cade0eb | 2009-02-18 15:54:26 -0800 | [diff] [blame] | 1051 | iwl_setup_rx_scan_handlers(priv); |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 1052 | priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl3945_rx_card_state_notif; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1053 | |
Ben Cahill | 9fbab51 | 2007-11-29 11:09:47 +0800 | [diff] [blame] | 1054 | /* Set up hardware specific Rx handlers */ |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 1055 | iwl3945_hw_rx_handler_setup(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1056 | } |
| 1057 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1058 | /************************** RX-FUNCTIONS ****************************/ |
| 1059 | /* |
| 1060 | * Rx theory of operation |
| 1061 | * |
| 1062 | * The host allocates 32 DMA target addresses and passes the host address |
| 1063 | * to the firmware at register IWL_RFDS_TABLE_LOWER + N * RFD_SIZE where N is |
| 1064 | * 0 to 31 |
| 1065 | * |
| 1066 | * Rx Queue Indexes |
| 1067 | * The host/firmware share two index registers for managing the Rx buffers. |
| 1068 | * |
| 1069 | * The READ index maps to the first position that the firmware may be writing |
| 1070 | * to -- the driver can read up to (but not including) this position and get |
| 1071 | * good data. |
| 1072 | * The READ index is managed by the firmware once the card is enabled. |
| 1073 | * |
| 1074 | * The WRITE index maps to the last position the driver has read from -- the |
| 1075 | * position preceding WRITE is the last slot the firmware can place a packet. |
| 1076 | * |
| 1077 | * The queue is empty (no good data) if WRITE = READ - 1, and is full if |
| 1078 | * WRITE = READ. |
| 1079 | * |
Ben Cahill | 9fbab51 | 2007-11-29 11:09:47 +0800 | [diff] [blame] | 1080 | * During initialization, the host sets up the READ queue position to the first |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1081 | * INDEX position, and WRITE to the last (READ - 1 wrapped) |
| 1082 | * |
Ben Cahill | 9fbab51 | 2007-11-29 11:09:47 +0800 | [diff] [blame] | 1083 | * When the firmware places a packet in a buffer, it will advance the READ index |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1084 | * and fire the RX interrupt. The driver can then query the READ index and |
| 1085 | * process as many packets as possible, moving the WRITE index forward as it |
| 1086 | * resets the Rx queue buffers with new memory. |
| 1087 | * |
| 1088 | * The management in the driver is as follows: |
| 1089 | * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When |
| 1090 | * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled |
Ian Schram | 01ebd06 | 2007-10-25 17:15:22 +0800 | [diff] [blame] | 1091 | * to replenish the iwl->rxq->rx_free. |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 1092 | * + In iwl3945_rx_replenish (scheduled) if 'processed' != 'read' then the |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1093 | * iwl->rxq is replenished and the READ INDEX is updated (updating the |
| 1094 | * 'processed' and 'read' driver indexes as well) |
| 1095 | * + A received packet is processed and handed to the kernel network stack, |
| 1096 | * detached from the iwl->rxq. The driver 'processed' index is updated. |
| 1097 | * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free |
| 1098 | * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ |
| 1099 | * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there |
| 1100 | * were enough free buffers and RX_STALLED is set it is cleared. |
| 1101 | * |
| 1102 | * |
| 1103 | * Driver sequence: |
| 1104 | * |
Ben Cahill | 9fbab51 | 2007-11-29 11:09:47 +0800 | [diff] [blame] | 1105 | * iwl3945_rx_replenish() Replenishes rx_free list from rx_used, and calls |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 1106 | * iwl3945_rx_queue_restock |
Ben Cahill | 9fbab51 | 2007-11-29 11:09:47 +0800 | [diff] [blame] | 1107 | * iwl3945_rx_queue_restock() Moves available buffers from rx_free into Rx |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1108 | * queue, updates firmware pointers, and updates |
| 1109 | * the WRITE index. If insufficient rx_free buffers |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 1110 | * are available, schedules iwl3945_rx_replenish |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1111 | * |
| 1112 | * -- enable interrupts -- |
Abhijeet Kolekar | 6100b58 | 2008-12-19 10:37:24 +0800 | [diff] [blame] | 1113 | * ISR - iwl3945_rx() Detach iwl_rx_mem_buffers from pool up to the |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1114 | * READ INDEX, detaching the SKB from the pool. |
| 1115 | * Moves the packet buffer from queue to rx_used. |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 1116 | * Calls iwl3945_rx_queue_restock to refill any empty |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1117 | * slots. |
| 1118 | * ... |
| 1119 | * |
| 1120 | */ |
| 1121 | |
| 1122 | /** |
Ben Cahill | 9fbab51 | 2007-11-29 11:09:47 +0800 | [diff] [blame] | 1123 | * iwl3945_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1124 | */ |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 1125 | static inline __le32 iwl3945_dma_addr2rbd_ptr(struct iwl_priv *priv, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1126 | dma_addr_t dma_addr) |
| 1127 | { |
| 1128 | return cpu_to_le32((u32)dma_addr); |
| 1129 | } |
| 1130 | |
| 1131 | /** |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 1132 | * iwl3945_rx_queue_restock - refill RX queue from pre-allocated pool |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1133 | * |
Ben Cahill | 9fbab51 | 2007-11-29 11:09:47 +0800 | [diff] [blame] | 1134 | * If there are slots in the RX queue that need to be restocked, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1135 | * and we have free pre-allocated buffers, fill the ranks as much |
Ben Cahill | 9fbab51 | 2007-11-29 11:09:47 +0800 | [diff] [blame] | 1136 | * as we can, pulling from rx_free. |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1137 | * |
| 1138 | * This moves the 'write' index forward to catch up with 'processed', and |
| 1139 | * also updates the memory address in the firmware to reference the new |
| 1140 | * target buffer. |
| 1141 | */ |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 1142 | static int iwl3945_rx_queue_restock(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1143 | { |
Abhijeet Kolekar | cc2f362 | 2008-12-19 10:37:25 +0800 | [diff] [blame] | 1144 | struct iwl_rx_queue *rxq = &priv->rxq; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1145 | struct list_head *element; |
Abhijeet Kolekar | 6100b58 | 2008-12-19 10:37:24 +0800 | [diff] [blame] | 1146 | struct iwl_rx_mem_buffer *rxb; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1147 | unsigned long flags; |
| 1148 | int write, rc; |
| 1149 | |
| 1150 | spin_lock_irqsave(&rxq->lock, flags); |
| 1151 | write = rxq->write & ~0x7; |
Winkler, Tomas | 37d6831 | 2009-01-08 10:19:54 -0800 | [diff] [blame] | 1152 | while ((iwl_rx_queue_space(rxq) > 0) && (rxq->free_count)) { |
Cahill, Ben M | 6440adb | 2007-11-29 11:09:55 +0800 | [diff] [blame] | 1153 | /* Get next free Rx buffer, remove from free list */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1154 | element = rxq->rx_free.next; |
Abhijeet Kolekar | 6100b58 | 2008-12-19 10:37:24 +0800 | [diff] [blame] | 1155 | rxb = list_entry(element, struct iwl_rx_mem_buffer, list); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1156 | list_del(element); |
Cahill, Ben M | 6440adb | 2007-11-29 11:09:55 +0800 | [diff] [blame] | 1157 | |
| 1158 | /* Point to Rx buffer via next RBD in circular buffer */ |
Abhijeet Kolekar | 6100b58 | 2008-12-19 10:37:24 +0800 | [diff] [blame] | 1159 | rxq->bd[rxq->write] = iwl3945_dma_addr2rbd_ptr(priv, rxb->real_dma_addr); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1160 | rxq->queue[rxq->write] = rxb; |
| 1161 | rxq->write = (rxq->write + 1) & RX_QUEUE_MASK; |
| 1162 | rxq->free_count--; |
| 1163 | } |
| 1164 | spin_unlock_irqrestore(&rxq->lock, flags); |
| 1165 | /* If the pre-allocated buffer pool is dropping low, schedule to |
| 1166 | * refill it */ |
| 1167 | if (rxq->free_count <= RX_LOW_WATERMARK) |
| 1168 | queue_work(priv->workqueue, &priv->rx_replenish); |
| 1169 | |
| 1170 | |
Cahill, Ben M | 6440adb | 2007-11-29 11:09:55 +0800 | [diff] [blame] | 1171 | /* If we've added more space for the firmware to place data, tell it. |
| 1172 | * Increment device's write pointer in multiples of 8. */ |
Abhijeet Kolekar | d14d444 | 2009-06-03 11:44:08 -0700 | [diff] [blame] | 1173 | if ((rxq->write_actual != (rxq->write & ~0x7)) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1174 | || (abs(rxq->write - rxq->read) > 7)) { |
| 1175 | spin_lock_irqsave(&rxq->lock, flags); |
| 1176 | rxq->need_update = 1; |
| 1177 | spin_unlock_irqrestore(&rxq->lock, flags); |
Winkler, Tomas | 141c43a | 2009-01-08 10:19:53 -0800 | [diff] [blame] | 1178 | rc = iwl_rx_queue_update_write_ptr(priv, rxq); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1179 | if (rc) |
| 1180 | return rc; |
| 1181 | } |
| 1182 | |
| 1183 | return 0; |
| 1184 | } |
| 1185 | |
| 1186 | /** |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 1187 | * iwl3945_rx_replenish - Move all used packet from rx_used to rx_free |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1188 | * |
| 1189 | * When moving to rx_free an SKB is allocated for the slot. |
| 1190 | * |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 1191 | * Also restock the Rx queue via iwl3945_rx_queue_restock. |
Ian Schram | 01ebd06 | 2007-10-25 17:15:22 +0800 | [diff] [blame] | 1192 | * This is called as a scheduled work item (except for during initialization) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1193 | */ |
Abhijeet Kolekar | d14d444 | 2009-06-03 11:44:08 -0700 | [diff] [blame] | 1194 | static void iwl3945_rx_allocate(struct iwl_priv *priv, gfp_t priority) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1195 | { |
Abhijeet Kolekar | cc2f362 | 2008-12-19 10:37:25 +0800 | [diff] [blame] | 1196 | struct iwl_rx_queue *rxq = &priv->rxq; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1197 | struct list_head *element; |
Abhijeet Kolekar | 6100b58 | 2008-12-19 10:37:24 +0800 | [diff] [blame] | 1198 | struct iwl_rx_mem_buffer *rxb; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1199 | unsigned long flags; |
Abhijeet Kolekar | 7224049 | 2009-04-30 13:56:26 -0700 | [diff] [blame] | 1200 | |
| 1201 | while (1) { |
| 1202 | spin_lock_irqsave(&rxq->lock, flags); |
| 1203 | |
| 1204 | if (list_empty(&rxq->rx_used)) { |
| 1205 | spin_unlock_irqrestore(&rxq->lock, flags); |
| 1206 | return; |
| 1207 | } |
| 1208 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1209 | element = rxq->rx_used.next; |
Abhijeet Kolekar | 6100b58 | 2008-12-19 10:37:24 +0800 | [diff] [blame] | 1210 | rxb = list_entry(element, struct iwl_rx_mem_buffer, list); |
Abhijeet Kolekar | 7224049 | 2009-04-30 13:56:26 -0700 | [diff] [blame] | 1211 | list_del(element); |
| 1212 | spin_unlock_irqrestore(&rxq->lock, flags); |
Cahill, Ben M | 6440adb | 2007-11-29 11:09:55 +0800 | [diff] [blame] | 1213 | |
| 1214 | /* Alloc a new receive buffer */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1215 | rxb->skb = |
Winkler, Tomas | 1e33dc6 | 2009-01-08 10:19:57 -0800 | [diff] [blame] | 1216 | alloc_skb(priv->hw_params.rx_buf_size, |
Abhijeet Kolekar | d14d444 | 2009-06-03 11:44:08 -0700 | [diff] [blame] | 1217 | priority); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1218 | if (!rxb->skb) { |
| 1219 | if (net_ratelimit()) |
Tomas Winkler | 978785a | 2008-12-19 10:37:31 +0800 | [diff] [blame] | 1220 | IWL_CRIT(priv, ": Can not allocate SKB buffers\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1221 | /* We don't reschedule replenish work here -- we will |
| 1222 | * call the restock method and if it still needs |
| 1223 | * more buffers it will schedule replenish */ |
| 1224 | break; |
| 1225 | } |
Zhu Yi | 12342c4 | 2007-12-20 11:27:32 +0800 | [diff] [blame] | 1226 | |
| 1227 | /* If radiotap head is required, reserve some headroom here. |
| 1228 | * The physical head count is a variable rx_stats->phy_count. |
| 1229 | * We reserve 4 bytes here. Plus these extra bytes, the |
| 1230 | * headroom of the physical head should be enough for the |
| 1231 | * radiotap head that iwl3945 supported. See iwl3945_rt. |
| 1232 | */ |
| 1233 | skb_reserve(rxb->skb, 4); |
| 1234 | |
Cahill, Ben M | 6440adb | 2007-11-29 11:09:55 +0800 | [diff] [blame] | 1235 | /* Get physical address of RB/SKB */ |
Winkler, Tomas | 1e33dc6 | 2009-01-08 10:19:57 -0800 | [diff] [blame] | 1236 | rxb->real_dma_addr = pci_map_single(priv->pci_dev, |
| 1237 | rxb->skb->data, |
| 1238 | priv->hw_params.rx_buf_size, |
| 1239 | PCI_DMA_FROMDEVICE); |
Abhijeet Kolekar | 7224049 | 2009-04-30 13:56:26 -0700 | [diff] [blame] | 1240 | |
| 1241 | spin_lock_irqsave(&rxq->lock, flags); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1242 | list_add_tail(&rxb->list, &rxq->rx_free); |
Abhijeet Kolekar | 7224049 | 2009-04-30 13:56:26 -0700 | [diff] [blame] | 1243 | priv->alloc_rxb_skb++; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1244 | rxq->free_count++; |
Abhijeet Kolekar | 7224049 | 2009-04-30 13:56:26 -0700 | [diff] [blame] | 1245 | spin_unlock_irqrestore(&rxq->lock, flags); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1246 | } |
Mohamed Abbas | 5c0eef9 | 2007-11-29 11:10:14 +0800 | [diff] [blame] | 1247 | } |
| 1248 | |
Reinette Chatre | df833b1 | 2009-04-21 10:55:48 -0700 | [diff] [blame] | 1249 | void iwl3945_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq) |
| 1250 | { |
| 1251 | unsigned long flags; |
| 1252 | int i; |
| 1253 | spin_lock_irqsave(&rxq->lock, flags); |
| 1254 | INIT_LIST_HEAD(&rxq->rx_free); |
| 1255 | INIT_LIST_HEAD(&rxq->rx_used); |
| 1256 | /* Fill the rx_used queue with _all_ of the Rx buffers */ |
| 1257 | for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) { |
| 1258 | /* In the reset function, these buffers may have been allocated |
| 1259 | * to an SKB, so we need to unmap and free potential storage */ |
| 1260 | if (rxq->pool[i].skb != NULL) { |
| 1261 | pci_unmap_single(priv->pci_dev, |
| 1262 | rxq->pool[i].real_dma_addr, |
| 1263 | priv->hw_params.rx_buf_size, |
| 1264 | PCI_DMA_FROMDEVICE); |
| 1265 | priv->alloc_rxb_skb--; |
| 1266 | dev_kfree_skb(rxq->pool[i].skb); |
| 1267 | rxq->pool[i].skb = NULL; |
| 1268 | } |
| 1269 | list_add_tail(&rxq->pool[i].list, &rxq->rx_used); |
| 1270 | } |
| 1271 | |
| 1272 | /* Set us so that we have processed and used all buffers, but have |
| 1273 | * not restocked the Rx queue with fresh buffers */ |
| 1274 | rxq->read = rxq->write = 0; |
| 1275 | rxq->free_count = 0; |
Abhijeet Kolekar | d14d444 | 2009-06-03 11:44:08 -0700 | [diff] [blame] | 1276 | rxq->write_actual = 0; |
Reinette Chatre | df833b1 | 2009-04-21 10:55:48 -0700 | [diff] [blame] | 1277 | spin_unlock_irqrestore(&rxq->lock, flags); |
| 1278 | } |
Reinette Chatre | df833b1 | 2009-04-21 10:55:48 -0700 | [diff] [blame] | 1279 | |
Mohamed Abbas | 5c0eef9 | 2007-11-29 11:10:14 +0800 | [diff] [blame] | 1280 | void iwl3945_rx_replenish(void *data) |
| 1281 | { |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 1282 | struct iwl_priv *priv = data; |
Mohamed Abbas | 5c0eef9 | 2007-11-29 11:10:14 +0800 | [diff] [blame] | 1283 | unsigned long flags; |
| 1284 | |
Abhijeet Kolekar | d14d444 | 2009-06-03 11:44:08 -0700 | [diff] [blame] | 1285 | iwl3945_rx_allocate(priv, GFP_KERNEL); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1286 | |
| 1287 | spin_lock_irqsave(&priv->lock, flags); |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 1288 | iwl3945_rx_queue_restock(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1289 | spin_unlock_irqrestore(&priv->lock, flags); |
| 1290 | } |
| 1291 | |
Abhijeet Kolekar | d14d444 | 2009-06-03 11:44:08 -0700 | [diff] [blame] | 1292 | static void iwl3945_rx_replenish_now(struct iwl_priv *priv) |
| 1293 | { |
| 1294 | iwl3945_rx_allocate(priv, GFP_ATOMIC); |
| 1295 | |
| 1296 | iwl3945_rx_queue_restock(priv); |
| 1297 | } |
| 1298 | |
| 1299 | |
Reinette Chatre | df833b1 | 2009-04-21 10:55:48 -0700 | [diff] [blame] | 1300 | /* Assumes that the skb field of the buffers in 'pool' is kept accurate. |
| 1301 | * If an SKB has been detached, the POOL needs to have its SKB set to NULL |
| 1302 | * This free routine walks the list of POOL entries and if SKB is set to |
| 1303 | * non NULL it is unmapped and freed |
| 1304 | */ |
| 1305 | static void iwl3945_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq) |
| 1306 | { |
| 1307 | int i; |
| 1308 | for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) { |
| 1309 | if (rxq->pool[i].skb != NULL) { |
| 1310 | pci_unmap_single(priv->pci_dev, |
| 1311 | rxq->pool[i].real_dma_addr, |
| 1312 | priv->hw_params.rx_buf_size, |
| 1313 | PCI_DMA_FROMDEVICE); |
| 1314 | dev_kfree_skb(rxq->pool[i].skb); |
| 1315 | } |
| 1316 | } |
| 1317 | |
| 1318 | pci_free_consistent(priv->pci_dev, 4 * RX_QUEUE_SIZE, rxq->bd, |
| 1319 | rxq->dma_addr); |
| 1320 | pci_free_consistent(priv->pci_dev, sizeof(struct iwl_rb_status), |
| 1321 | rxq->rb_stts, rxq->rb_stts_dma); |
| 1322 | rxq->bd = NULL; |
| 1323 | rxq->rb_stts = NULL; |
| 1324 | } |
Reinette Chatre | df833b1 | 2009-04-21 10:55:48 -0700 | [diff] [blame] | 1325 | |
| 1326 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1327 | /* Convert linear signal-to-noise ratio into dB */ |
| 1328 | static u8 ratio2dB[100] = { |
| 1329 | /* 0 1 2 3 4 5 6 7 8 9 */ |
| 1330 | 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */ |
| 1331 | 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */ |
| 1332 | 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */ |
| 1333 | 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */ |
| 1334 | 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */ |
| 1335 | 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */ |
| 1336 | 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */ |
| 1337 | 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */ |
| 1338 | 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */ |
| 1339 | 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */ |
| 1340 | }; |
| 1341 | |
| 1342 | /* Calculates a relative dB value from a ratio of linear |
| 1343 | * (i.e. not dB) signal levels. |
| 1344 | * Conversion assumes that levels are voltages (20*log), not powers (10*log). */ |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 1345 | int iwl3945_calc_db_from_ratio(int sig_ratio) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1346 | { |
Adrian Bunk | 221c80c | 2008-02-02 23:19:01 +0200 | [diff] [blame] | 1347 | /* 1000:1 or higher just report as 60 dB */ |
| 1348 | if (sig_ratio >= 1000) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1349 | return 60; |
| 1350 | |
Adrian Bunk | 221c80c | 2008-02-02 23:19:01 +0200 | [diff] [blame] | 1351 | /* 100:1 or higher, divide by 10 and use table, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1352 | * add 20 dB to make up for divide by 10 */ |
Adrian Bunk | 221c80c | 2008-02-02 23:19:01 +0200 | [diff] [blame] | 1353 | if (sig_ratio >= 100) |
Tomas Winkler | 3ac7f14 | 2008-07-21 02:40:14 +0300 | [diff] [blame] | 1354 | return 20 + (int)ratio2dB[sig_ratio/10]; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1355 | |
| 1356 | /* We shouldn't see this */ |
| 1357 | if (sig_ratio < 1) |
| 1358 | return 0; |
| 1359 | |
| 1360 | /* Use table for ratios 1:1 - 99:1 */ |
| 1361 | return (int)ratio2dB[sig_ratio]; |
| 1362 | } |
| 1363 | |
| 1364 | #define PERFECT_RSSI (-20) /* dBm */ |
| 1365 | #define WORST_RSSI (-95) /* dBm */ |
| 1366 | #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI) |
| 1367 | |
| 1368 | /* Calculate an indication of rx signal quality (a percentage, not dBm!). |
| 1369 | * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info |
| 1370 | * about formulas used below. */ |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 1371 | int iwl3945_calc_sig_qual(int rssi_dbm, int noise_dbm) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1372 | { |
| 1373 | int sig_qual; |
| 1374 | int degradation = PERFECT_RSSI - rssi_dbm; |
| 1375 | |
| 1376 | /* If we get a noise measurement, use signal-to-noise ratio (SNR) |
| 1377 | * as indicator; formula is (signal dbm - noise dbm). |
| 1378 | * SNR at or above 40 is a great signal (100%). |
| 1379 | * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator. |
| 1380 | * Weakest usable signal is usually 10 - 15 dB SNR. */ |
| 1381 | if (noise_dbm) { |
| 1382 | if (rssi_dbm - noise_dbm >= 40) |
| 1383 | return 100; |
| 1384 | else if (rssi_dbm < noise_dbm) |
| 1385 | return 0; |
| 1386 | sig_qual = ((rssi_dbm - noise_dbm) * 5) / 2; |
| 1387 | |
| 1388 | /* Else use just the signal level. |
| 1389 | * This formula is a least squares fit of data points collected and |
| 1390 | * compared with a reference system that had a percentage (%) display |
| 1391 | * for signal quality. */ |
| 1392 | } else |
| 1393 | sig_qual = (100 * (RSSI_RANGE * RSSI_RANGE) - degradation * |
| 1394 | (15 * RSSI_RANGE + 62 * degradation)) / |
| 1395 | (RSSI_RANGE * RSSI_RANGE); |
| 1396 | |
| 1397 | if (sig_qual > 100) |
| 1398 | sig_qual = 100; |
| 1399 | else if (sig_qual < 1) |
| 1400 | sig_qual = 0; |
| 1401 | |
| 1402 | return sig_qual; |
| 1403 | } |
| 1404 | |
| 1405 | /** |
Ben Cahill | 9fbab51 | 2007-11-29 11:09:47 +0800 | [diff] [blame] | 1406 | * iwl3945_rx_handle - Main entry function for receiving responses from uCode |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1407 | * |
| 1408 | * Uses the priv->rx_handlers callback function array to invoke |
| 1409 | * the appropriate handlers, including command responses, |
| 1410 | * frame-received notifications, and other notifications. |
| 1411 | */ |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 1412 | static void iwl3945_rx_handle(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1413 | { |
Abhijeet Kolekar | 6100b58 | 2008-12-19 10:37:24 +0800 | [diff] [blame] | 1414 | struct iwl_rx_mem_buffer *rxb; |
Tomas Winkler | 3d24a9f | 2008-12-19 10:37:07 +0800 | [diff] [blame] | 1415 | struct iwl_rx_packet *pkt; |
Abhijeet Kolekar | cc2f362 | 2008-12-19 10:37:25 +0800 | [diff] [blame] | 1416 | struct iwl_rx_queue *rxq = &priv->rxq; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1417 | u32 r, i; |
| 1418 | int reclaim; |
| 1419 | unsigned long flags; |
Mohamed Abbas | 5c0eef9 | 2007-11-29 11:10:14 +0800 | [diff] [blame] | 1420 | u8 fill_rx = 0; |
Mohamed Abbas | d68ab68 | 2008-02-07 13:16:33 -0800 | [diff] [blame] | 1421 | u32 count = 8; |
Abhijeet Kolekar | d14d444 | 2009-06-03 11:44:08 -0700 | [diff] [blame] | 1422 | int total_empty = 0; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1423 | |
Cahill, Ben M | 6440adb | 2007-11-29 11:09:55 +0800 | [diff] [blame] | 1424 | /* uCode's read index (stored in shared DRAM) indicates the last Rx |
| 1425 | * buffer that the driver may process (last buffer filled by ucode). */ |
Winkler, Tomas | 8cd812b | 2008-12-19 10:37:43 +0800 | [diff] [blame] | 1426 | r = le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1427 | i = rxq->read; |
| 1428 | |
Abhijeet Kolekar | d14d444 | 2009-06-03 11:44:08 -0700 | [diff] [blame] | 1429 | /* calculate total frames need to be restock after handling RX */ |
| 1430 | total_empty = r - priv->rxq.write_actual; |
| 1431 | if (total_empty < 0) |
| 1432 | total_empty += RX_QUEUE_SIZE; |
| 1433 | |
| 1434 | if (total_empty > (RX_QUEUE_SIZE / 2)) |
Mohamed Abbas | 5c0eef9 | 2007-11-29 11:10:14 +0800 | [diff] [blame] | 1435 | fill_rx = 1; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1436 | /* Rx interrupt, but nothing sent from uCode */ |
| 1437 | if (i == r) |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1438 | IWL_DEBUG(priv, IWL_DL_RX | IWL_DL_ISR, "r = %d, i = %d\n", r, i); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1439 | |
| 1440 | while (i != r) { |
| 1441 | rxb = rxq->queue[i]; |
| 1442 | |
Ben Cahill | 9fbab51 | 2007-11-29 11:09:47 +0800 | [diff] [blame] | 1443 | /* If an RXB doesn't have a Rx queue slot associated with it, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1444 | * then a bug has been introduced in the queue refilling |
| 1445 | * routines -- catch it here */ |
| 1446 | BUG_ON(rxb == NULL); |
| 1447 | |
| 1448 | rxq->queue[i] = NULL; |
| 1449 | |
Reinette Chatre | df833b1 | 2009-04-21 10:55:48 -0700 | [diff] [blame] | 1450 | pci_unmap_single(priv->pci_dev, rxb->real_dma_addr, |
| 1451 | priv->hw_params.rx_buf_size, |
| 1452 | PCI_DMA_FROMDEVICE); |
Tomas Winkler | 3d24a9f | 2008-12-19 10:37:07 +0800 | [diff] [blame] | 1453 | pkt = (struct iwl_rx_packet *)rxb->skb->data; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1454 | |
| 1455 | /* Reclaim a command buffer only if this packet is a response |
| 1456 | * to a (driver-originated) command. |
| 1457 | * If the packet (e.g. Rx frame) originated from uCode, |
| 1458 | * there is no command buffer to reclaim. |
| 1459 | * Ucode should set SEQ_RX_FRAME bit if ucode-originated, |
| 1460 | * but apparently a few don't get set; catch them here. */ |
| 1461 | reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) && |
| 1462 | (pkt->hdr.cmd != STATISTICS_NOTIFICATION) && |
| 1463 | (pkt->hdr.cmd != REPLY_TX); |
| 1464 | |
| 1465 | /* Based on type of command response or notification, |
| 1466 | * handle those that need handling via function in |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 1467 | * rx_handlers table. See iwl3945_setup_rx_handlers() */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1468 | if (priv->rx_handlers[pkt->hdr.cmd]) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1469 | IWL_DEBUG(priv, IWL_DL_HCMD | IWL_DL_RX | IWL_DL_ISR, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1470 | "r = %d, i = %d, %s, 0x%02x\n", r, i, |
| 1471 | get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd); |
| 1472 | priv->rx_handlers[pkt->hdr.cmd] (priv, rxb); |
Abhijeet Kolekar | 86ddbf6 | 2009-04-20 14:36:59 -0700 | [diff] [blame] | 1473 | priv->isr_stats.rx_handlers[pkt->hdr.cmd]++; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1474 | } else { |
| 1475 | /* No handling needed */ |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1476 | IWL_DEBUG(priv, IWL_DL_HCMD | IWL_DL_RX | IWL_DL_ISR, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1477 | "r %d i %d No handler needed for %s, 0x%02x\n", |
| 1478 | r, i, get_cmd_string(pkt->hdr.cmd), |
| 1479 | pkt->hdr.cmd); |
| 1480 | } |
| 1481 | |
| 1482 | if (reclaim) { |
Ben Cahill | 9fbab51 | 2007-11-29 11:09:47 +0800 | [diff] [blame] | 1483 | /* Invoke any callbacks, transfer the skb to caller, and |
Samuel Ortiz | 518099a | 2009-01-19 15:30:27 -0800 | [diff] [blame] | 1484 | * fire off the (possibly) blocking iwl_send_cmd() |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1485 | * as we reclaim the driver command queue */ |
| 1486 | if (rxb && rxb->skb) |
Abhijeet Kolekar | 732587a | 2009-03-11 11:17:57 -0700 | [diff] [blame] | 1487 | iwl_tx_cmd_complete(priv, rxb); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1488 | else |
Winkler, Tomas | 39aadf8 | 2008-12-19 10:37:32 +0800 | [diff] [blame] | 1489 | IWL_WARN(priv, "Claim null rxb?\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1490 | } |
| 1491 | |
| 1492 | /* For now we just don't re-use anything. We can tweak this |
| 1493 | * later to try and re-use notification packets and SKBs that |
| 1494 | * fail to Rx correctly */ |
| 1495 | if (rxb->skb != NULL) { |
| 1496 | priv->alloc_rxb_skb--; |
| 1497 | dev_kfree_skb_any(rxb->skb); |
| 1498 | rxb->skb = NULL; |
| 1499 | } |
| 1500 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1501 | spin_lock_irqsave(&rxq->lock, flags); |
| 1502 | list_add_tail(&rxb->list, &priv->rxq.rx_used); |
| 1503 | spin_unlock_irqrestore(&rxq->lock, flags); |
| 1504 | i = (i + 1) & RX_QUEUE_MASK; |
Mohamed Abbas | 5c0eef9 | 2007-11-29 11:10:14 +0800 | [diff] [blame] | 1505 | /* If there are a lot of unused frames, |
| 1506 | * restock the Rx queue so ucode won't assert. */ |
| 1507 | if (fill_rx) { |
| 1508 | count++; |
| 1509 | if (count >= 8) { |
| 1510 | priv->rxq.read = i; |
Abhijeet Kolekar | d14d444 | 2009-06-03 11:44:08 -0700 | [diff] [blame] | 1511 | iwl3945_rx_replenish_now(priv); |
Mohamed Abbas | 5c0eef9 | 2007-11-29 11:10:14 +0800 | [diff] [blame] | 1512 | count = 0; |
| 1513 | } |
| 1514 | } |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1515 | } |
| 1516 | |
| 1517 | /* Backtrack one entry */ |
| 1518 | priv->rxq.read = i; |
Abhijeet Kolekar | d14d444 | 2009-06-03 11:44:08 -0700 | [diff] [blame] | 1519 | if (fill_rx) |
| 1520 | iwl3945_rx_replenish_now(priv); |
| 1521 | else |
| 1522 | iwl3945_rx_queue_restock(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1523 | } |
| 1524 | |
Mohamed Abbas | 0359fac | 2008-03-28 16:21:08 -0700 | [diff] [blame] | 1525 | /* call this function to flush any scheduled tasklet */ |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 1526 | static inline void iwl_synchronize_irq(struct iwl_priv *priv) |
Mohamed Abbas | 0359fac | 2008-03-28 16:21:08 -0700 | [diff] [blame] | 1527 | { |
Tomas Winkler | a96a27f | 2008-10-23 23:48:56 -0700 | [diff] [blame] | 1528 | /* wait to make sure we flush pending tasklet*/ |
Mohamed Abbas | 0359fac | 2008-03-28 16:21:08 -0700 | [diff] [blame] | 1529 | synchronize_irq(priv->pci_dev->irq); |
| 1530 | tasklet_kill(&priv->irq_tasklet); |
| 1531 | } |
| 1532 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1533 | static const char *desc_lookup(int i) |
| 1534 | { |
| 1535 | switch (i) { |
| 1536 | case 1: |
| 1537 | return "FAIL"; |
| 1538 | case 2: |
| 1539 | return "BAD_PARAM"; |
| 1540 | case 3: |
| 1541 | return "BAD_CHECKSUM"; |
| 1542 | case 4: |
| 1543 | return "NMI_INTERRUPT"; |
| 1544 | case 5: |
| 1545 | return "SYSASSERT"; |
| 1546 | case 6: |
| 1547 | return "FATAL_ERROR"; |
| 1548 | } |
| 1549 | |
| 1550 | return "UNKNOWN"; |
| 1551 | } |
| 1552 | |
| 1553 | #define ERROR_START_OFFSET (1 * sizeof(u32)) |
| 1554 | #define ERROR_ELEM_SIZE (7 * sizeof(u32)) |
| 1555 | |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 1556 | static void iwl3945_dump_nic_error_log(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1557 | { |
| 1558 | u32 i; |
| 1559 | u32 desc, time, count, base, data1; |
| 1560 | u32 blink1, blink2, ilink1, ilink2; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1561 | |
| 1562 | base = le32_to_cpu(priv->card_alive.error_event_table_ptr); |
| 1563 | |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 1564 | if (!iwl3945_hw_valid_rtc_data_addr(base)) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 1565 | IWL_ERR(priv, "Not valid error log pointer 0x%08X\n", base); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1566 | return; |
| 1567 | } |
| 1568 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1569 | |
Abhijeet Kolekar | 5d49f49 | 2008-12-19 10:37:29 +0800 | [diff] [blame] | 1570 | count = iwl_read_targ_mem(priv, base); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1571 | |
| 1572 | if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 1573 | IWL_ERR(priv, "Start IWL Error Log Dump:\n"); |
| 1574 | IWL_ERR(priv, "Status: 0x%08lX, count: %d\n", |
| 1575 | priv->status, count); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1576 | } |
| 1577 | |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 1578 | IWL_ERR(priv, "Desc Time asrtPC blink2 " |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1579 | "ilink1 nmiPC Line\n"); |
| 1580 | for (i = ERROR_START_OFFSET; |
| 1581 | i < (count * ERROR_ELEM_SIZE) + ERROR_START_OFFSET; |
| 1582 | i += ERROR_ELEM_SIZE) { |
Abhijeet Kolekar | 5d49f49 | 2008-12-19 10:37:29 +0800 | [diff] [blame] | 1583 | desc = iwl_read_targ_mem(priv, base + i); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1584 | time = |
Abhijeet Kolekar | 5d49f49 | 2008-12-19 10:37:29 +0800 | [diff] [blame] | 1585 | iwl_read_targ_mem(priv, base + i + 1 * sizeof(u32)); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1586 | blink1 = |
Abhijeet Kolekar | 5d49f49 | 2008-12-19 10:37:29 +0800 | [diff] [blame] | 1587 | iwl_read_targ_mem(priv, base + i + 2 * sizeof(u32)); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1588 | blink2 = |
Abhijeet Kolekar | 5d49f49 | 2008-12-19 10:37:29 +0800 | [diff] [blame] | 1589 | iwl_read_targ_mem(priv, base + i + 3 * sizeof(u32)); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1590 | ilink1 = |
Abhijeet Kolekar | 5d49f49 | 2008-12-19 10:37:29 +0800 | [diff] [blame] | 1591 | iwl_read_targ_mem(priv, base + i + 4 * sizeof(u32)); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1592 | ilink2 = |
Abhijeet Kolekar | 5d49f49 | 2008-12-19 10:37:29 +0800 | [diff] [blame] | 1593 | iwl_read_targ_mem(priv, base + i + 5 * sizeof(u32)); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1594 | data1 = |
Abhijeet Kolekar | 5d49f49 | 2008-12-19 10:37:29 +0800 | [diff] [blame] | 1595 | iwl_read_targ_mem(priv, base + i + 6 * sizeof(u32)); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1596 | |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 1597 | IWL_ERR(priv, |
| 1598 | "%-13s (#%d) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n", |
| 1599 | desc_lookup(desc), desc, time, blink1, blink2, |
| 1600 | ilink1, ilink2, data1); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1601 | } |
| 1602 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1603 | } |
| 1604 | |
Ben Cahill | f58177b | 2007-11-29 11:09:43 +0800 | [diff] [blame] | 1605 | #define EVENT_START_OFFSET (6 * sizeof(u32)) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1606 | |
| 1607 | /** |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 1608 | * iwl3945_print_event_log - Dump error event log to syslog |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1609 | * |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1610 | */ |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 1611 | static void iwl3945_print_event_log(struct iwl_priv *priv, u32 start_idx, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1612 | u32 num_events, u32 mode) |
| 1613 | { |
| 1614 | u32 i; |
| 1615 | u32 base; /* SRAM byte address of event log header */ |
| 1616 | u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */ |
| 1617 | u32 ptr; /* SRAM byte address of log data */ |
| 1618 | u32 ev, time, data; /* event log data */ |
| 1619 | |
| 1620 | if (num_events == 0) |
| 1621 | return; |
| 1622 | |
| 1623 | base = le32_to_cpu(priv->card_alive.log_event_table_ptr); |
| 1624 | |
| 1625 | if (mode == 0) |
| 1626 | event_size = 2 * sizeof(u32); |
| 1627 | else |
| 1628 | event_size = 3 * sizeof(u32); |
| 1629 | |
| 1630 | ptr = base + EVENT_START_OFFSET + (start_idx * event_size); |
| 1631 | |
| 1632 | /* "time" is actually "data" for mode 0 (no timestamp). |
| 1633 | * place event id # at far right for easier visual parsing. */ |
| 1634 | for (i = 0; i < num_events; i++) { |
Abhijeet Kolekar | 5d49f49 | 2008-12-19 10:37:29 +0800 | [diff] [blame] | 1635 | ev = iwl_read_targ_mem(priv, ptr); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1636 | ptr += sizeof(u32); |
Abhijeet Kolekar | 5d49f49 | 2008-12-19 10:37:29 +0800 | [diff] [blame] | 1637 | time = iwl_read_targ_mem(priv, ptr); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1638 | ptr += sizeof(u32); |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 1639 | if (mode == 0) { |
| 1640 | /* data, ev */ |
| 1641 | IWL_ERR(priv, "0x%08x\t%04u\n", time, ev); |
| 1642 | } else { |
Abhijeet Kolekar | 5d49f49 | 2008-12-19 10:37:29 +0800 | [diff] [blame] | 1643 | data = iwl_read_targ_mem(priv, ptr); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1644 | ptr += sizeof(u32); |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 1645 | IWL_ERR(priv, "%010u\t0x%08x\t%04u\n", time, data, ev); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1646 | } |
| 1647 | } |
| 1648 | } |
| 1649 | |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 1650 | static void iwl3945_dump_nic_event_log(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1651 | { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1652 | u32 base; /* SRAM byte address of event log header */ |
| 1653 | u32 capacity; /* event log capacity in # entries */ |
| 1654 | u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */ |
| 1655 | u32 num_wraps; /* # times uCode wrapped to top of log */ |
| 1656 | u32 next_entry; /* index of next entry to be written by uCode */ |
| 1657 | u32 size; /* # entries that we'll print */ |
| 1658 | |
| 1659 | base = le32_to_cpu(priv->card_alive.log_event_table_ptr); |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 1660 | if (!iwl3945_hw_valid_rtc_data_addr(base)) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 1661 | IWL_ERR(priv, "Invalid event log pointer 0x%08X\n", base); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1662 | return; |
| 1663 | } |
| 1664 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1665 | /* event log header */ |
Abhijeet Kolekar | 5d49f49 | 2008-12-19 10:37:29 +0800 | [diff] [blame] | 1666 | capacity = iwl_read_targ_mem(priv, base); |
| 1667 | mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32))); |
| 1668 | num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32))); |
| 1669 | next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32))); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1670 | |
| 1671 | size = num_wraps ? capacity : next_entry; |
| 1672 | |
| 1673 | /* bail out if nothing in log */ |
| 1674 | if (size == 0) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 1675 | IWL_ERR(priv, "Start IWL Event Log Dump: nothing in log\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1676 | return; |
| 1677 | } |
| 1678 | |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 1679 | IWL_ERR(priv, "Start IWL Event Log Dump: display count %d, wraps %d\n", |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1680 | size, num_wraps); |
| 1681 | |
| 1682 | /* if uCode has wrapped back to top of log, start at the oldest entry, |
| 1683 | * i.e the next one that uCode would fill. */ |
| 1684 | if (num_wraps) |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 1685 | iwl3945_print_event_log(priv, next_entry, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1686 | capacity - next_entry, mode); |
| 1687 | |
| 1688 | /* (then/else) start at top of log */ |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 1689 | iwl3945_print_event_log(priv, 0, next_entry, mode); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1690 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1691 | } |
| 1692 | |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 1693 | static void iwl3945_irq_tasklet(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1694 | { |
| 1695 | u32 inta, handled = 0; |
| 1696 | u32 inta_fh; |
| 1697 | unsigned long flags; |
Samuel Ortiz | d08853a | 2009-01-23 13:45:17 -0800 | [diff] [blame] | 1698 | #ifdef CONFIG_IWLWIFI_DEBUG |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1699 | u32 inta_mask; |
| 1700 | #endif |
| 1701 | |
| 1702 | spin_lock_irqsave(&priv->lock, flags); |
| 1703 | |
| 1704 | /* Ack/clear/reset pending uCode interrupts. |
| 1705 | * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS, |
| 1706 | * and will clear only when CSR_FH_INT_STATUS gets cleared. */ |
Abhijeet Kolekar | 5d49f49 | 2008-12-19 10:37:29 +0800 | [diff] [blame] | 1707 | inta = iwl_read32(priv, CSR_INT); |
| 1708 | iwl_write32(priv, CSR_INT, inta); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1709 | |
| 1710 | /* Ack/clear/reset pending flow-handler (DMA) interrupts. |
| 1711 | * Any new interrupts that happen after this, either while we're |
| 1712 | * in this tasklet, or later, will show up in next ISR/tasklet. */ |
Abhijeet Kolekar | 5d49f49 | 2008-12-19 10:37:29 +0800 | [diff] [blame] | 1713 | inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); |
| 1714 | iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1715 | |
Samuel Ortiz | d08853a | 2009-01-23 13:45:17 -0800 | [diff] [blame] | 1716 | #ifdef CONFIG_IWLWIFI_DEBUG |
Samuel Ortiz | 40b8ec0 | 2008-12-19 10:37:08 +0800 | [diff] [blame] | 1717 | if (priv->debug_level & IWL_DL_ISR) { |
Ben Cahill | 9fbab51 | 2007-11-29 11:09:47 +0800 | [diff] [blame] | 1718 | /* just for debug */ |
Abhijeet Kolekar | 5d49f49 | 2008-12-19 10:37:29 +0800 | [diff] [blame] | 1719 | inta_mask = iwl_read32(priv, CSR_INT_MASK); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1720 | IWL_DEBUG_ISR(priv, "inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1721 | inta, inta_mask, inta_fh); |
| 1722 | } |
| 1723 | #endif |
| 1724 | |
| 1725 | /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not |
| 1726 | * atomic, make sure that inta covers all the interrupts that |
| 1727 | * we've discovered, even if FH interrupt came in just after |
| 1728 | * reading CSR_INT. */ |
Tomas Winkler | 6f83eaa | 2008-03-04 18:09:28 -0800 | [diff] [blame] | 1729 | if (inta_fh & CSR39_FH_INT_RX_MASK) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1730 | inta |= CSR_INT_BIT_FH_RX; |
Tomas Winkler | 6f83eaa | 2008-03-04 18:09:28 -0800 | [diff] [blame] | 1731 | if (inta_fh & CSR39_FH_INT_TX_MASK) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1732 | inta |= CSR_INT_BIT_FH_TX; |
| 1733 | |
| 1734 | /* Now service all interrupt bits discovered above. */ |
| 1735 | if (inta & CSR_INT_BIT_HW_ERR) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 1736 | IWL_ERR(priv, "Microcode HW error detected. Restarting.\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1737 | |
| 1738 | /* Tell the device to stop sending interrupts */ |
Abhijeet Kolekar | ed3b932 | 2009-02-18 15:54:30 -0800 | [diff] [blame] | 1739 | iwl_disable_interrupts(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1740 | |
Abhijeet Kolekar | 86ddbf6 | 2009-04-20 14:36:59 -0700 | [diff] [blame] | 1741 | priv->isr_stats.hw++; |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 1742 | iwl_irq_handle_error(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1743 | |
| 1744 | handled |= CSR_INT_BIT_HW_ERR; |
| 1745 | |
| 1746 | spin_unlock_irqrestore(&priv->lock, flags); |
| 1747 | |
| 1748 | return; |
| 1749 | } |
| 1750 | |
Samuel Ortiz | d08853a | 2009-01-23 13:45:17 -0800 | [diff] [blame] | 1751 | #ifdef CONFIG_IWLWIFI_DEBUG |
Samuel Ortiz | 40b8ec0 | 2008-12-19 10:37:08 +0800 | [diff] [blame] | 1752 | if (priv->debug_level & (IWL_DL_ISR)) { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1753 | /* NIC fires this, but we don't use it, redundant with WAKEUP */ |
Abhijeet Kolekar | 86ddbf6 | 2009-04-20 14:36:59 -0700 | [diff] [blame] | 1754 | if (inta & CSR_INT_BIT_SCD) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1755 | IWL_DEBUG_ISR(priv, "Scheduler finished to transmit " |
Joonwoo Park | 25c03d8 | 2008-01-23 10:15:20 -0800 | [diff] [blame] | 1756 | "the frame/frames.\n"); |
Abhijeet Kolekar | 86ddbf6 | 2009-04-20 14:36:59 -0700 | [diff] [blame] | 1757 | priv->isr_stats.sch++; |
| 1758 | } |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1759 | |
| 1760 | /* Alive notification via Rx interrupt will do the real work */ |
Abhijeet Kolekar | 86ddbf6 | 2009-04-20 14:36:59 -0700 | [diff] [blame] | 1761 | if (inta & CSR_INT_BIT_ALIVE) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1762 | IWL_DEBUG_ISR(priv, "Alive interrupt\n"); |
Abhijeet Kolekar | 86ddbf6 | 2009-04-20 14:36:59 -0700 | [diff] [blame] | 1763 | priv->isr_stats.alive++; |
| 1764 | } |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1765 | } |
| 1766 | #endif |
| 1767 | /* Safely ignore these bits for debug checks below */ |
Joonwoo Park | 25c03d8 | 2008-01-23 10:15:20 -0800 | [diff] [blame] | 1768 | inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1769 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1770 | /* Error detected by uCode */ |
| 1771 | if (inta & CSR_INT_BIT_SW_ERR) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 1772 | IWL_ERR(priv, "Microcode SW error detected. " |
| 1773 | "Restarting 0x%X.\n", inta); |
Abhijeet Kolekar | 86ddbf6 | 2009-04-20 14:36:59 -0700 | [diff] [blame] | 1774 | priv->isr_stats.sw++; |
| 1775 | priv->isr_stats.sw_err = inta; |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 1776 | iwl_irq_handle_error(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1777 | handled |= CSR_INT_BIT_SW_ERR; |
| 1778 | } |
| 1779 | |
| 1780 | /* uCode wakes up after power-down sleep */ |
| 1781 | if (inta & CSR_INT_BIT_WAKEUP) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1782 | IWL_DEBUG_ISR(priv, "Wakeup interrupt\n"); |
Winkler, Tomas | 141c43a | 2009-01-08 10:19:53 -0800 | [diff] [blame] | 1783 | iwl_rx_queue_update_write_ptr(priv, &priv->rxq); |
Samuel Ortiz | 4f3602c | 2009-01-19 15:30:25 -0800 | [diff] [blame] | 1784 | iwl_txq_update_write_ptr(priv, &priv->txq[0]); |
| 1785 | iwl_txq_update_write_ptr(priv, &priv->txq[1]); |
| 1786 | iwl_txq_update_write_ptr(priv, &priv->txq[2]); |
| 1787 | iwl_txq_update_write_ptr(priv, &priv->txq[3]); |
| 1788 | iwl_txq_update_write_ptr(priv, &priv->txq[4]); |
| 1789 | iwl_txq_update_write_ptr(priv, &priv->txq[5]); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1790 | |
Abhijeet Kolekar | 86ddbf6 | 2009-04-20 14:36:59 -0700 | [diff] [blame] | 1791 | priv->isr_stats.wakeup++; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1792 | handled |= CSR_INT_BIT_WAKEUP; |
| 1793 | } |
| 1794 | |
| 1795 | /* All uCode command responses, including Tx command responses, |
| 1796 | * Rx "responses" (frame-received notification), and other |
| 1797 | * notifications from uCode come through here*/ |
| 1798 | if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) { |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 1799 | iwl3945_rx_handle(priv); |
Abhijeet Kolekar | 86ddbf6 | 2009-04-20 14:36:59 -0700 | [diff] [blame] | 1800 | priv->isr_stats.rx++; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1801 | handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX); |
| 1802 | } |
| 1803 | |
| 1804 | if (inta & CSR_INT_BIT_FH_TX) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1805 | IWL_DEBUG_ISR(priv, "Tx interrupt\n"); |
Abhijeet Kolekar | 86ddbf6 | 2009-04-20 14:36:59 -0700 | [diff] [blame] | 1806 | priv->isr_stats.tx++; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1807 | |
Abhijeet Kolekar | 5d49f49 | 2008-12-19 10:37:29 +0800 | [diff] [blame] | 1808 | iwl_write32(priv, CSR_FH_INT_STATUS, (1 << 6)); |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 1809 | iwl_write_direct32(priv, FH39_TCSR_CREDIT |
| 1810 | (FH39_SRVC_CHNL), 0x0); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1811 | handled |= CSR_INT_BIT_FH_TX; |
| 1812 | } |
| 1813 | |
Abhijeet Kolekar | 86ddbf6 | 2009-04-20 14:36:59 -0700 | [diff] [blame] | 1814 | if (inta & ~handled) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 1815 | IWL_ERR(priv, "Unhandled INTA bits 0x%08x\n", inta & ~handled); |
Abhijeet Kolekar | 86ddbf6 | 2009-04-20 14:36:59 -0700 | [diff] [blame] | 1816 | priv->isr_stats.unhandled++; |
| 1817 | } |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1818 | |
Mohamed Abbas | 40cefda | 2009-05-22 11:01:52 -0700 | [diff] [blame] | 1819 | if (inta & ~priv->inta_mask) { |
Winkler, Tomas | 39aadf8 | 2008-12-19 10:37:32 +0800 | [diff] [blame] | 1820 | IWL_WARN(priv, "Disabled INTA bits 0x%08x were pending\n", |
Mohamed Abbas | 40cefda | 2009-05-22 11:01:52 -0700 | [diff] [blame] | 1821 | inta & ~priv->inta_mask); |
Winkler, Tomas | 39aadf8 | 2008-12-19 10:37:32 +0800 | [diff] [blame] | 1822 | IWL_WARN(priv, " with FH_INT = 0x%08x\n", inta_fh); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1823 | } |
| 1824 | |
| 1825 | /* Re-enable all interrupts */ |
Mohamed Abbas | 0359fac | 2008-03-28 16:21:08 -0700 | [diff] [blame] | 1826 | /* only Re-enable if disabled by irq */ |
| 1827 | if (test_bit(STATUS_INT_ENABLED, &priv->status)) |
Abhijeet Kolekar | ed3b932 | 2009-02-18 15:54:30 -0800 | [diff] [blame] | 1828 | iwl_enable_interrupts(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1829 | |
Samuel Ortiz | d08853a | 2009-01-23 13:45:17 -0800 | [diff] [blame] | 1830 | #ifdef CONFIG_IWLWIFI_DEBUG |
Samuel Ortiz | 40b8ec0 | 2008-12-19 10:37:08 +0800 | [diff] [blame] | 1831 | if (priv->debug_level & (IWL_DL_ISR)) { |
Abhijeet Kolekar | 5d49f49 | 2008-12-19 10:37:29 +0800 | [diff] [blame] | 1832 | inta = iwl_read32(priv, CSR_INT); |
| 1833 | inta_mask = iwl_read32(priv, CSR_INT_MASK); |
| 1834 | inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1835 | IWL_DEBUG_ISR(priv, "End inta 0x%08x, enabled 0x%08x, fh 0x%08x, " |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1836 | "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags); |
| 1837 | } |
| 1838 | #endif |
| 1839 | spin_unlock_irqrestore(&priv->lock, flags); |
| 1840 | } |
| 1841 | |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 1842 | static int iwl3945_get_channels_for_scan(struct iwl_priv *priv, |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 1843 | enum ieee80211_band band, |
Abhijeet Kolekar | f934052 | 2008-09-03 11:26:58 +0800 | [diff] [blame] | 1844 | u8 is_active, u8 n_probes, |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 1845 | struct iwl3945_scan_channel *scan_ch) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1846 | { |
| 1847 | const struct ieee80211_channel *channels = NULL; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 1848 | const struct ieee80211_supported_band *sband; |
Samuel Ortiz | d20b3c6 | 2008-12-19 10:37:15 +0800 | [diff] [blame] | 1849 | const struct iwl_channel_info *ch_info; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1850 | u16 passive_dwell = 0; |
| 1851 | u16 active_dwell = 0; |
| 1852 | int added, i; |
| 1853 | |
Kolekar, Abhijeet | cbba18c | 2008-12-19 10:37:42 +0800 | [diff] [blame] | 1854 | sband = iwl_get_hw_mode(priv, band); |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 1855 | if (!sband) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1856 | return 0; |
| 1857 | |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 1858 | channels = sband->channels; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1859 | |
Samuel Ortiz | 77fecfb8 | 2009-01-23 13:45:12 -0800 | [diff] [blame] | 1860 | active_dwell = iwl_get_active_dwell_time(priv, band, n_probes); |
| 1861 | passive_dwell = iwl_get_passive_dwell_time(priv, band); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1862 | |
Abhijeet Kolekar | 8f4807a | 2008-09-03 11:26:31 +0800 | [diff] [blame] | 1863 | if (passive_dwell <= active_dwell) |
| 1864 | passive_dwell = active_dwell + 1; |
| 1865 | |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 1866 | for (i = 0, added = 0; i < sband->n_channels; i++) { |
Johannes Berg | 182e2e6 | 2008-04-04 10:41:56 +0200 | [diff] [blame] | 1867 | if (channels[i].flags & IEEE80211_CHAN_DISABLED) |
| 1868 | continue; |
| 1869 | |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 1870 | scan_ch->channel = channels[i].hw_value; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1871 | |
Samuel Ortiz | e614891 | 2009-01-23 13:45:15 -0800 | [diff] [blame] | 1872 | ch_info = iwl_get_channel_info(priv, band, scan_ch->channel); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1873 | if (!is_channel_valid(ch_info)) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1874 | IWL_DEBUG_SCAN(priv, "Channel %d is INVALID for this band.\n", |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1875 | scan_ch->channel); |
| 1876 | continue; |
| 1877 | } |
| 1878 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1879 | scan_ch->active_dwell = cpu_to_le16(active_dwell); |
| 1880 | scan_ch->passive_dwell = cpu_to_le16(passive_dwell); |
Abhijeet Kolekar | 011a033 | 2008-12-02 12:14:07 -0800 | [diff] [blame] | 1881 | /* If passive , set up for auto-switch |
| 1882 | * and use long active_dwell time. |
| 1883 | */ |
| 1884 | if (!is_active || is_channel_passive(ch_info) || |
| 1885 | (channels[i].flags & IEEE80211_CHAN_PASSIVE_SCAN)) { |
| 1886 | scan_ch->type = 0; /* passive */ |
| 1887 | if (IWL_UCODE_API(priv->ucode_ver) == 1) |
| 1888 | scan_ch->active_dwell = cpu_to_le16(passive_dwell - 1); |
| 1889 | } else { |
| 1890 | scan_ch->type = 1; /* active */ |
| 1891 | } |
| 1892 | |
| 1893 | /* Set direct probe bits. These may be used both for active |
| 1894 | * scan channels (probes gets sent right away), |
| 1895 | * or for passive channels (probes get se sent only after |
| 1896 | * hearing clear Rx packet).*/ |
| 1897 | if (IWL_UCODE_API(priv->ucode_ver) >= 2) { |
| 1898 | if (n_probes) |
Winkler, Tomas | 0d21044 | 2009-01-23 13:45:21 -0800 | [diff] [blame] | 1899 | scan_ch->type |= IWL39_SCAN_PROBE_MASK(n_probes); |
Abhijeet Kolekar | 011a033 | 2008-12-02 12:14:07 -0800 | [diff] [blame] | 1900 | } else { |
| 1901 | /* uCode v1 does not allow setting direct probe bits on |
| 1902 | * passive channel. */ |
| 1903 | if ((scan_ch->type & 1) && n_probes) |
Winkler, Tomas | 0d21044 | 2009-01-23 13:45:21 -0800 | [diff] [blame] | 1904 | scan_ch->type |= IWL39_SCAN_PROBE_MASK(n_probes); |
Abhijeet Kolekar | 011a033 | 2008-12-02 12:14:07 -0800 | [diff] [blame] | 1905 | } |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1906 | |
Ben Cahill | 9fbab51 | 2007-11-29 11:09:47 +0800 | [diff] [blame] | 1907 | /* Set txpower levels to defaults */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1908 | scan_ch->tpc.dsp_atten = 110; |
| 1909 | /* scan_pwr_info->tpc.dsp_atten; */ |
| 1910 | |
| 1911 | /*scan_pwr_info->tpc.tx_gain; */ |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 1912 | if (band == IEEE80211_BAND_5GHZ) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1913 | scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3; |
| 1914 | else { |
| 1915 | scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3)); |
| 1916 | /* NOTE: if we were doing 6Mb OFDM for scans we'd use |
Ben Cahill | 9fbab51 | 2007-11-29 11:09:47 +0800 | [diff] [blame] | 1917 | * power level: |
Reinette Chatre | 8a1b024 | 2008-01-14 17:46:25 -0800 | [diff] [blame] | 1918 | * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1919 | */ |
| 1920 | } |
| 1921 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1922 | IWL_DEBUG_SCAN(priv, "Scanning %d [%s %d]\n", |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1923 | scan_ch->channel, |
| 1924 | (scan_ch->type & 1) ? "ACTIVE" : "PASSIVE", |
| 1925 | (scan_ch->type & 1) ? |
| 1926 | active_dwell : passive_dwell); |
| 1927 | |
| 1928 | scan_ch++; |
| 1929 | added++; |
| 1930 | } |
| 1931 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1932 | IWL_DEBUG_SCAN(priv, "total channels to scan %d \n", added); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1933 | return added; |
| 1934 | } |
| 1935 | |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 1936 | static void iwl3945_init_hw_rates(struct iwl_priv *priv, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1937 | struct ieee80211_rate *rates) |
| 1938 | { |
| 1939 | int i; |
| 1940 | |
| 1941 | for (i = 0; i < IWL_RATE_COUNT; i++) { |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 1942 | rates[i].bitrate = iwl3945_rates[i].ieee * 5; |
| 1943 | rates[i].hw_value = i; /* Rate scaling will work on indexes */ |
| 1944 | rates[i].hw_value_short = i; |
| 1945 | rates[i].flags = 0; |
Samuel Ortiz | d9829a6 | 2008-12-19 10:37:12 +0800 | [diff] [blame] | 1946 | if ((i > IWL39_LAST_OFDM_RATE) || (i < IWL_FIRST_OFDM_RATE)) { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1947 | /* |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 1948 | * If CCK != 1M then set short preamble rate flag. |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1949 | */ |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 1950 | rates[i].flags |= (iwl3945_rates[i].plcp == 10) ? |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 1951 | 0 : IEEE80211_RATE_SHORT_PREAMBLE; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1952 | } |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1953 | } |
| 1954 | } |
| 1955 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1956 | /****************************************************************************** |
| 1957 | * |
| 1958 | * uCode download functions |
| 1959 | * |
| 1960 | ******************************************************************************/ |
| 1961 | |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 1962 | static void iwl3945_dealloc_ucode_pci(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1963 | { |
Tomas Winkler | 98c9221 | 2008-01-14 17:46:20 -0800 | [diff] [blame] | 1964 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code); |
| 1965 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data); |
| 1966 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup); |
| 1967 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init); |
| 1968 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data); |
| 1969 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1970 | } |
| 1971 | |
| 1972 | /** |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 1973 | * iwl3945_verify_inst_full - verify runtime uCode image in card vs. host, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1974 | * looking at all data. |
| 1975 | */ |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 1976 | static int iwl3945_verify_inst_full(struct iwl_priv *priv, __le32 *image, u32 len) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1977 | { |
| 1978 | u32 val; |
| 1979 | u32 save_len = len; |
| 1980 | int rc = 0; |
| 1981 | u32 errcnt; |
| 1982 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1983 | IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1984 | |
Abhijeet Kolekar | 5d49f49 | 2008-12-19 10:37:29 +0800 | [diff] [blame] | 1985 | iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, |
Samuel Ortiz | 250bdd2 | 2008-12-19 10:37:11 +0800 | [diff] [blame] | 1986 | IWL39_RTC_INST_LOWER_BOUND); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1987 | |
| 1988 | errcnt = 0; |
| 1989 | for (; len > 0; len -= sizeof(u32), image++) { |
| 1990 | /* read data comes through single port, auto-incr addr */ |
| 1991 | /* NOTE: Use the debugless read so we don't flood kernel log |
| 1992 | * if IWL_DL_IO is set */ |
Abhijeet Kolekar | 5d49f49 | 2008-12-19 10:37:29 +0800 | [diff] [blame] | 1993 | val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1994 | if (val != le32_to_cpu(*image)) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 1995 | IWL_ERR(priv, "uCode INST section is invalid at " |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 1996 | "offset 0x%x, is 0x%x, s/b 0x%x\n", |
| 1997 | save_len - len, val, le32_to_cpu(*image)); |
| 1998 | rc = -EIO; |
| 1999 | errcnt++; |
| 2000 | if (errcnt >= 20) |
| 2001 | break; |
| 2002 | } |
| 2003 | } |
| 2004 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2005 | |
| 2006 | if (!errcnt) |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2007 | IWL_DEBUG_INFO(priv, |
| 2008 | "ucode image in INSTRUCTION memory is good\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2009 | |
| 2010 | return rc; |
| 2011 | } |
| 2012 | |
| 2013 | |
| 2014 | /** |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 2015 | * iwl3945_verify_inst_sparse - verify runtime uCode image in card vs. host, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2016 | * using sample data 100 bytes apart. If these sample points are good, |
| 2017 | * it's a pretty good bet that everything between them is good, too. |
| 2018 | */ |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 2019 | static int iwl3945_verify_inst_sparse(struct iwl_priv *priv, __le32 *image, u32 len) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2020 | { |
| 2021 | u32 val; |
| 2022 | int rc = 0; |
| 2023 | u32 errcnt = 0; |
| 2024 | u32 i; |
| 2025 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2026 | IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2027 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2028 | for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) { |
| 2029 | /* read data comes through single port, auto-incr addr */ |
| 2030 | /* NOTE: Use the debugless read so we don't flood kernel log |
| 2031 | * if IWL_DL_IO is set */ |
Abhijeet Kolekar | 5d49f49 | 2008-12-19 10:37:29 +0800 | [diff] [blame] | 2032 | iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, |
Samuel Ortiz | 250bdd2 | 2008-12-19 10:37:11 +0800 | [diff] [blame] | 2033 | i + IWL39_RTC_INST_LOWER_BOUND); |
Abhijeet Kolekar | 5d49f49 | 2008-12-19 10:37:29 +0800 | [diff] [blame] | 2034 | val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2035 | if (val != le32_to_cpu(*image)) { |
| 2036 | #if 0 /* Enable this if you want to see details */ |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 2037 | IWL_ERR(priv, "uCode INST section is invalid at " |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2038 | "offset 0x%x, is 0x%x, s/b 0x%x\n", |
| 2039 | i, val, *image); |
| 2040 | #endif |
| 2041 | rc = -EIO; |
| 2042 | errcnt++; |
| 2043 | if (errcnt >= 3) |
| 2044 | break; |
| 2045 | } |
| 2046 | } |
| 2047 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2048 | return rc; |
| 2049 | } |
| 2050 | |
| 2051 | |
| 2052 | /** |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 2053 | * iwl3945_verify_ucode - determine which instruction image is in SRAM, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2054 | * and verify its contents |
| 2055 | */ |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 2056 | static int iwl3945_verify_ucode(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2057 | { |
| 2058 | __le32 *image; |
| 2059 | u32 len; |
| 2060 | int rc = 0; |
| 2061 | |
| 2062 | /* Try bootstrap */ |
| 2063 | image = (__le32 *)priv->ucode_boot.v_addr; |
| 2064 | len = priv->ucode_boot.len; |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 2065 | rc = iwl3945_verify_inst_sparse(priv, image, len); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2066 | if (rc == 0) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2067 | IWL_DEBUG_INFO(priv, "Bootstrap uCode is good in inst SRAM\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2068 | return 0; |
| 2069 | } |
| 2070 | |
| 2071 | /* Try initialize */ |
| 2072 | image = (__le32 *)priv->ucode_init.v_addr; |
| 2073 | len = priv->ucode_init.len; |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 2074 | rc = iwl3945_verify_inst_sparse(priv, image, len); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2075 | if (rc == 0) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2076 | IWL_DEBUG_INFO(priv, "Initialize uCode is good in inst SRAM\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2077 | return 0; |
| 2078 | } |
| 2079 | |
| 2080 | /* Try runtime/protocol */ |
| 2081 | image = (__le32 *)priv->ucode_code.v_addr; |
| 2082 | len = priv->ucode_code.len; |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 2083 | rc = iwl3945_verify_inst_sparse(priv, image, len); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2084 | if (rc == 0) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2085 | IWL_DEBUG_INFO(priv, "Runtime uCode is good in inst SRAM\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2086 | return 0; |
| 2087 | } |
| 2088 | |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 2089 | IWL_ERR(priv, "NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2090 | |
Ben Cahill | 9fbab51 | 2007-11-29 11:09:47 +0800 | [diff] [blame] | 2091 | /* Since nothing seems to match, show first several data entries in |
| 2092 | * instruction SRAM, so maybe visual inspection will give a clue. |
| 2093 | * Selection of bootstrap image (vs. other images) is arbitrary. */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2094 | image = (__le32 *)priv->ucode_boot.v_addr; |
| 2095 | len = priv->ucode_boot.len; |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 2096 | rc = iwl3945_verify_inst_full(priv, image, len); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2097 | |
| 2098 | return rc; |
| 2099 | } |
| 2100 | |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 2101 | static void iwl3945_nic_start(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2102 | { |
| 2103 | /* Remove all resets to allow NIC to operate */ |
Abhijeet Kolekar | 5d49f49 | 2008-12-19 10:37:29 +0800 | [diff] [blame] | 2104 | iwl_write32(priv, CSR_RESET, 0); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2105 | } |
| 2106 | |
| 2107 | /** |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 2108 | * iwl3945_read_ucode - Read uCode images from disk file. |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2109 | * |
| 2110 | * Copy into buffers for card to fetch via bus-mastering |
| 2111 | */ |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 2112 | static int iwl3945_read_ucode(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2113 | { |
Kolekar, Abhijeet | a78fe75 | 2008-12-19 10:37:21 +0800 | [diff] [blame] | 2114 | struct iwl_ucode *ucode; |
Reinette Chatre | a0987a8 | 2008-12-02 12:14:06 -0800 | [diff] [blame] | 2115 | int ret = -EINVAL, index; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2116 | const struct firmware *ucode_raw; |
| 2117 | /* firmware file name contains uCode/driver compatibility version */ |
Reinette Chatre | a0987a8 | 2008-12-02 12:14:06 -0800 | [diff] [blame] | 2118 | const char *name_pre = priv->cfg->fw_name_pre; |
| 2119 | const unsigned int api_max = priv->cfg->ucode_api_max; |
| 2120 | const unsigned int api_min = priv->cfg->ucode_api_min; |
| 2121 | char buf[25]; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2122 | u8 *src; |
| 2123 | size_t len; |
Reinette Chatre | a0987a8 | 2008-12-02 12:14:06 -0800 | [diff] [blame] | 2124 | u32 api_ver, inst_size, data_size, init_size, init_data_size, boot_size; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2125 | |
| 2126 | /* Ask kernel firmware_class module to get the boot firmware off disk. |
| 2127 | * request_firmware() is synchronous, file is in memory on return. */ |
Reinette Chatre | a0987a8 | 2008-12-02 12:14:06 -0800 | [diff] [blame] | 2128 | for (index = api_max; index >= api_min; index--) { |
| 2129 | sprintf(buf, "%s%u%s", name_pre, index, ".ucode"); |
| 2130 | ret = request_firmware(&ucode_raw, buf, &priv->pci_dev->dev); |
| 2131 | if (ret < 0) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 2132 | IWL_ERR(priv, "%s firmware file req failed: %d\n", |
Reinette Chatre | a0987a8 | 2008-12-02 12:14:06 -0800 | [diff] [blame] | 2133 | buf, ret); |
| 2134 | if (ret == -ENOENT) |
| 2135 | continue; |
| 2136 | else |
| 2137 | goto error; |
| 2138 | } else { |
| 2139 | if (index < api_max) |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 2140 | IWL_ERR(priv, "Loaded firmware %s, " |
| 2141 | "which is deprecated. " |
| 2142 | " Please use API v%u instead.\n", |
Reinette Chatre | a0987a8 | 2008-12-02 12:14:06 -0800 | [diff] [blame] | 2143 | buf, api_max); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2144 | IWL_DEBUG_INFO(priv, "Got firmware '%s' file " |
| 2145 | "(%zd bytes) from disk\n", |
Reinette Chatre | a0987a8 | 2008-12-02 12:14:06 -0800 | [diff] [blame] | 2146 | buf, ucode_raw->size); |
| 2147 | break; |
| 2148 | } |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2149 | } |
| 2150 | |
Reinette Chatre | a0987a8 | 2008-12-02 12:14:06 -0800 | [diff] [blame] | 2151 | if (ret < 0) |
| 2152 | goto error; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2153 | |
| 2154 | /* Make sure that we got at least our header! */ |
| 2155 | if (ucode_raw->size < sizeof(*ucode)) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 2156 | IWL_ERR(priv, "File size way too small!\n"); |
Tomas Winkler | 90e759d | 2007-11-29 11:09:41 +0800 | [diff] [blame] | 2157 | ret = -EINVAL; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2158 | goto err_release; |
| 2159 | } |
| 2160 | |
| 2161 | /* Data from ucode file: header followed by uCode images */ |
| 2162 | ucode = (void *)ucode_raw->data; |
| 2163 | |
Chatre, Reinette | c02b3ac | 2008-12-02 12:14:05 -0800 | [diff] [blame] | 2164 | priv->ucode_ver = le32_to_cpu(ucode->ver); |
Reinette Chatre | a0987a8 | 2008-12-02 12:14:06 -0800 | [diff] [blame] | 2165 | api_ver = IWL_UCODE_API(priv->ucode_ver); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2166 | inst_size = le32_to_cpu(ucode->inst_size); |
| 2167 | data_size = le32_to_cpu(ucode->data_size); |
| 2168 | init_size = le32_to_cpu(ucode->init_size); |
| 2169 | init_data_size = le32_to_cpu(ucode->init_data_size); |
| 2170 | boot_size = le32_to_cpu(ucode->boot_size); |
| 2171 | |
Reinette Chatre | a0987a8 | 2008-12-02 12:14:06 -0800 | [diff] [blame] | 2172 | /* api_ver should match the api version forming part of the |
| 2173 | * firmware filename ... but we don't check for that and only rely |
Nick Andrew | 877d031 | 2009-01-26 11:06:57 +0100 | [diff] [blame] | 2174 | * on the API version read from firmware header from here on forward */ |
Reinette Chatre | a0987a8 | 2008-12-02 12:14:06 -0800 | [diff] [blame] | 2175 | |
| 2176 | if (api_ver < api_min || api_ver > api_max) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 2177 | IWL_ERR(priv, "Driver unable to support your firmware API. " |
Reinette Chatre | a0987a8 | 2008-12-02 12:14:06 -0800 | [diff] [blame] | 2178 | "Driver supports v%u, firmware is v%u.\n", |
| 2179 | api_max, api_ver); |
| 2180 | priv->ucode_ver = 0; |
| 2181 | ret = -EINVAL; |
| 2182 | goto err_release; |
| 2183 | } |
| 2184 | if (api_ver != api_max) |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 2185 | IWL_ERR(priv, "Firmware has old API version. Expected %u, " |
Reinette Chatre | a0987a8 | 2008-12-02 12:14:06 -0800 | [diff] [blame] | 2186 | "got %u. New firmware can be obtained " |
| 2187 | "from http://www.intellinuxwireless.org.\n", |
| 2188 | api_max, api_ver); |
| 2189 | |
Tomas Winkler | 978785a | 2008-12-19 10:37:31 +0800 | [diff] [blame] | 2190 | IWL_INFO(priv, "loaded firmware version %u.%u.%u.%u\n", |
| 2191 | IWL_UCODE_MAJOR(priv->ucode_ver), |
| 2192 | IWL_UCODE_MINOR(priv->ucode_ver), |
| 2193 | IWL_UCODE_API(priv->ucode_ver), |
| 2194 | IWL_UCODE_SERIAL(priv->ucode_ver)); |
| 2195 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2196 | IWL_DEBUG_INFO(priv, "f/w package hdr ucode version raw = 0x%x\n", |
Reinette Chatre | a0987a8 | 2008-12-02 12:14:06 -0800 | [diff] [blame] | 2197 | priv->ucode_ver); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2198 | IWL_DEBUG_INFO(priv, "f/w package hdr runtime inst size = %u\n", |
| 2199 | inst_size); |
| 2200 | IWL_DEBUG_INFO(priv, "f/w package hdr runtime data size = %u\n", |
| 2201 | data_size); |
| 2202 | IWL_DEBUG_INFO(priv, "f/w package hdr init inst size = %u\n", |
| 2203 | init_size); |
| 2204 | IWL_DEBUG_INFO(priv, "f/w package hdr init data size = %u\n", |
| 2205 | init_data_size); |
| 2206 | IWL_DEBUG_INFO(priv, "f/w package hdr boot inst size = %u\n", |
| 2207 | boot_size); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2208 | |
Reinette Chatre | a0987a8 | 2008-12-02 12:14:06 -0800 | [diff] [blame] | 2209 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2210 | /* Verify size of file vs. image size info in file's header */ |
| 2211 | if (ucode_raw->size < sizeof(*ucode) + |
| 2212 | inst_size + data_size + init_size + |
| 2213 | init_data_size + boot_size) { |
| 2214 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2215 | IWL_DEBUG_INFO(priv, "uCode file size %zd too small\n", |
| 2216 | ucode_raw->size); |
Tomas Winkler | 90e759d | 2007-11-29 11:09:41 +0800 | [diff] [blame] | 2217 | ret = -EINVAL; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2218 | goto err_release; |
| 2219 | } |
| 2220 | |
| 2221 | /* Verify that uCode images will fit in card's SRAM */ |
Samuel Ortiz | 250bdd2 | 2008-12-19 10:37:11 +0800 | [diff] [blame] | 2222 | if (inst_size > IWL39_MAX_INST_SIZE) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2223 | IWL_DEBUG_INFO(priv, "uCode instr len %d too large to fit in\n", |
Tomas Winkler | 90e759d | 2007-11-29 11:09:41 +0800 | [diff] [blame] | 2224 | inst_size); |
| 2225 | ret = -EINVAL; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2226 | goto err_release; |
| 2227 | } |
| 2228 | |
Samuel Ortiz | 250bdd2 | 2008-12-19 10:37:11 +0800 | [diff] [blame] | 2229 | if (data_size > IWL39_MAX_DATA_SIZE) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2230 | IWL_DEBUG_INFO(priv, "uCode data len %d too large to fit in\n", |
Tomas Winkler | 90e759d | 2007-11-29 11:09:41 +0800 | [diff] [blame] | 2231 | data_size); |
| 2232 | ret = -EINVAL; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2233 | goto err_release; |
| 2234 | } |
Samuel Ortiz | 250bdd2 | 2008-12-19 10:37:11 +0800 | [diff] [blame] | 2235 | if (init_size > IWL39_MAX_INST_SIZE) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2236 | IWL_DEBUG_INFO(priv, |
| 2237 | "uCode init instr len %d too large to fit in\n", |
Tomas Winkler | 90e759d | 2007-11-29 11:09:41 +0800 | [diff] [blame] | 2238 | init_size); |
| 2239 | ret = -EINVAL; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2240 | goto err_release; |
| 2241 | } |
Samuel Ortiz | 250bdd2 | 2008-12-19 10:37:11 +0800 | [diff] [blame] | 2242 | if (init_data_size > IWL39_MAX_DATA_SIZE) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2243 | IWL_DEBUG_INFO(priv, |
| 2244 | "uCode init data len %d too large to fit in\n", |
Tomas Winkler | 90e759d | 2007-11-29 11:09:41 +0800 | [diff] [blame] | 2245 | init_data_size); |
| 2246 | ret = -EINVAL; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2247 | goto err_release; |
| 2248 | } |
Samuel Ortiz | 250bdd2 | 2008-12-19 10:37:11 +0800 | [diff] [blame] | 2249 | if (boot_size > IWL39_MAX_BSM_SIZE) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2250 | IWL_DEBUG_INFO(priv, |
| 2251 | "uCode boot instr len %d too large to fit in\n", |
Tomas Winkler | 90e759d | 2007-11-29 11:09:41 +0800 | [diff] [blame] | 2252 | boot_size); |
| 2253 | ret = -EINVAL; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2254 | goto err_release; |
| 2255 | } |
| 2256 | |
| 2257 | /* Allocate ucode buffers for card's bus-master loading ... */ |
| 2258 | |
| 2259 | /* Runtime instructions and 2 copies of data: |
| 2260 | * 1) unmodified from disk |
| 2261 | * 2) backup cache for save/restore during power-downs */ |
| 2262 | priv->ucode_code.len = inst_size; |
Tomas Winkler | 98c9221 | 2008-01-14 17:46:20 -0800 | [diff] [blame] | 2263 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_code); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2264 | |
| 2265 | priv->ucode_data.len = data_size; |
Tomas Winkler | 98c9221 | 2008-01-14 17:46:20 -0800 | [diff] [blame] | 2266 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2267 | |
| 2268 | priv->ucode_data_backup.len = data_size; |
Tomas Winkler | 98c9221 | 2008-01-14 17:46:20 -0800 | [diff] [blame] | 2269 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2270 | |
| 2271 | if (!priv->ucode_code.v_addr || !priv->ucode_data.v_addr || |
Tomas Winkler | 90e759d | 2007-11-29 11:09:41 +0800 | [diff] [blame] | 2272 | !priv->ucode_data_backup.v_addr) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2273 | goto err_pci_alloc; |
| 2274 | |
Tomas Winkler | 90e759d | 2007-11-29 11:09:41 +0800 | [diff] [blame] | 2275 | /* Initialization instructions and data */ |
| 2276 | if (init_size && init_data_size) { |
| 2277 | priv->ucode_init.len = init_size; |
Tomas Winkler | 98c9221 | 2008-01-14 17:46:20 -0800 | [diff] [blame] | 2278 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init); |
Tomas Winkler | 90e759d | 2007-11-29 11:09:41 +0800 | [diff] [blame] | 2279 | |
| 2280 | priv->ucode_init_data.len = init_data_size; |
Tomas Winkler | 98c9221 | 2008-01-14 17:46:20 -0800 | [diff] [blame] | 2281 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data); |
Tomas Winkler | 90e759d | 2007-11-29 11:09:41 +0800 | [diff] [blame] | 2282 | |
| 2283 | if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr) |
| 2284 | goto err_pci_alloc; |
| 2285 | } |
| 2286 | |
| 2287 | /* Bootstrap (instructions only, no data) */ |
| 2288 | if (boot_size) { |
| 2289 | priv->ucode_boot.len = boot_size; |
Tomas Winkler | 98c9221 | 2008-01-14 17:46:20 -0800 | [diff] [blame] | 2290 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot); |
Tomas Winkler | 90e759d | 2007-11-29 11:09:41 +0800 | [diff] [blame] | 2291 | |
| 2292 | if (!priv->ucode_boot.v_addr) |
| 2293 | goto err_pci_alloc; |
| 2294 | } |
| 2295 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2296 | /* Copy images into buffers for card's bus-master reads ... */ |
| 2297 | |
| 2298 | /* Runtime instructions (first block of data in file) */ |
| 2299 | src = &ucode->data[0]; |
| 2300 | len = priv->ucode_code.len; |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2301 | IWL_DEBUG_INFO(priv, |
| 2302 | "Copying (but not loading) uCode instr len %zd\n", len); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2303 | memcpy(priv->ucode_code.v_addr, src, len); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2304 | IWL_DEBUG_INFO(priv, "uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n", |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2305 | priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr); |
| 2306 | |
| 2307 | /* Runtime data (2nd block) |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 2308 | * NOTE: Copy into backup buffer will be done in iwl3945_up() */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2309 | src = &ucode->data[inst_size]; |
| 2310 | len = priv->ucode_data.len; |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2311 | IWL_DEBUG_INFO(priv, |
| 2312 | "Copying (but not loading) uCode data len %zd\n", len); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2313 | memcpy(priv->ucode_data.v_addr, src, len); |
| 2314 | memcpy(priv->ucode_data_backup.v_addr, src, len); |
| 2315 | |
| 2316 | /* Initialization instructions (3rd block) */ |
| 2317 | if (init_size) { |
| 2318 | src = &ucode->data[inst_size + data_size]; |
| 2319 | len = priv->ucode_init.len; |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2320 | IWL_DEBUG_INFO(priv, |
| 2321 | "Copying (but not loading) init instr len %zd\n", len); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2322 | memcpy(priv->ucode_init.v_addr, src, len); |
| 2323 | } |
| 2324 | |
| 2325 | /* Initialization data (4th block) */ |
| 2326 | if (init_data_size) { |
| 2327 | src = &ucode->data[inst_size + data_size + init_size]; |
| 2328 | len = priv->ucode_init_data.len; |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2329 | IWL_DEBUG_INFO(priv, |
| 2330 | "Copying (but not loading) init data len %zd\n", len); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2331 | memcpy(priv->ucode_init_data.v_addr, src, len); |
| 2332 | } |
| 2333 | |
| 2334 | /* Bootstrap instructions (5th block) */ |
| 2335 | src = &ucode->data[inst_size + data_size + init_size + init_data_size]; |
| 2336 | len = priv->ucode_boot.len; |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2337 | IWL_DEBUG_INFO(priv, |
| 2338 | "Copying (but not loading) boot instr len %zd\n", len); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2339 | memcpy(priv->ucode_boot.v_addr, src, len); |
| 2340 | |
| 2341 | /* We have our copies now, allow OS release its copies */ |
| 2342 | release_firmware(ucode_raw); |
| 2343 | return 0; |
| 2344 | |
| 2345 | err_pci_alloc: |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 2346 | IWL_ERR(priv, "failed to allocate pci memory\n"); |
Tomas Winkler | 90e759d | 2007-11-29 11:09:41 +0800 | [diff] [blame] | 2347 | ret = -ENOMEM; |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 2348 | iwl3945_dealloc_ucode_pci(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2349 | |
| 2350 | err_release: |
| 2351 | release_firmware(ucode_raw); |
| 2352 | |
| 2353 | error: |
Tomas Winkler | 90e759d | 2007-11-29 11:09:41 +0800 | [diff] [blame] | 2354 | return ret; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2355 | } |
| 2356 | |
| 2357 | |
| 2358 | /** |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 2359 | * iwl3945_set_ucode_ptrs - Set uCode address location |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2360 | * |
| 2361 | * Tell initialization uCode where to find runtime uCode. |
| 2362 | * |
| 2363 | * BSM registers initially contain pointers to initialization uCode. |
| 2364 | * We need to replace them to load runtime uCode inst and data, |
| 2365 | * and to save runtime data when powering down. |
| 2366 | */ |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 2367 | static int iwl3945_set_ucode_ptrs(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2368 | { |
| 2369 | dma_addr_t pinst; |
| 2370 | dma_addr_t pdata; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2371 | |
| 2372 | /* bits 31:0 for 3945 */ |
| 2373 | pinst = priv->ucode_code.p_addr; |
| 2374 | pdata = priv->ucode_data_backup.p_addr; |
| 2375 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2376 | /* Tell bootstrap uCode where to find image to load */ |
Abhijeet Kolekar | 5d49f49 | 2008-12-19 10:37:29 +0800 | [diff] [blame] | 2377 | iwl_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst); |
| 2378 | iwl_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata); |
| 2379 | iwl_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2380 | priv->ucode_data.len); |
| 2381 | |
Tomas Winkler | a96a27f | 2008-10-23 23:48:56 -0700 | [diff] [blame] | 2382 | /* Inst byte count must be last to set up, bit 31 signals uCode |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2383 | * that all new ptr/size info is in place */ |
Abhijeet Kolekar | 5d49f49 | 2008-12-19 10:37:29 +0800 | [diff] [blame] | 2384 | iwl_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2385 | priv->ucode_code.len | BSM_DRAM_INST_LOAD); |
| 2386 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2387 | IWL_DEBUG_INFO(priv, "Runtime uCode pointers are set.\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2388 | |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 2389 | return 0; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2390 | } |
| 2391 | |
| 2392 | /** |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 2393 | * iwl3945_init_alive_start - Called after REPLY_ALIVE notification received |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2394 | * |
| 2395 | * Called after REPLY_ALIVE notification received from "initialize" uCode. |
| 2396 | * |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2397 | * Tell "initialize" uCode to go ahead and load the runtime uCode. |
Ben Cahill | 9fbab51 | 2007-11-29 11:09:47 +0800 | [diff] [blame] | 2398 | */ |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 2399 | static void iwl3945_init_alive_start(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2400 | { |
| 2401 | /* Check alive response for "valid" sign from uCode */ |
| 2402 | if (priv->card_alive_init.is_valid != UCODE_VALID_OK) { |
| 2403 | /* We had an error bringing up the hardware, so take it |
| 2404 | * all the way back down so we can try again */ |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2405 | IWL_DEBUG_INFO(priv, "Initialize Alive failed.\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2406 | goto restart; |
| 2407 | } |
| 2408 | |
| 2409 | /* Bootstrap uCode has loaded initialize uCode ... verify inst image. |
| 2410 | * This is a paranoid check, because we would not have gotten the |
| 2411 | * "initialize" alive if code weren't properly loaded. */ |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 2412 | if (iwl3945_verify_ucode(priv)) { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2413 | /* Runtime instruction load was bad; |
| 2414 | * take it all the way back down so we can try again */ |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2415 | IWL_DEBUG_INFO(priv, "Bad \"initialize\" uCode load.\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2416 | goto restart; |
| 2417 | } |
| 2418 | |
| 2419 | /* Send pointers to protocol/runtime uCode image ... init code will |
| 2420 | * load and launch runtime uCode, which will send us another "Alive" |
| 2421 | * notification. */ |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2422 | IWL_DEBUG_INFO(priv, "Initialization Alive received.\n"); |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 2423 | if (iwl3945_set_ucode_ptrs(priv)) { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2424 | /* Runtime instruction load won't happen; |
| 2425 | * take it all the way back down so we can try again */ |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2426 | IWL_DEBUG_INFO(priv, "Couldn't set up uCode pointers.\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2427 | goto restart; |
| 2428 | } |
| 2429 | return; |
| 2430 | |
| 2431 | restart: |
| 2432 | queue_work(priv->workqueue, &priv->restart); |
| 2433 | } |
| 2434 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2435 | /** |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 2436 | * iwl3945_alive_start - called after REPLY_ALIVE notification received |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2437 | * from protocol/runtime uCode (initialization uCode's |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 2438 | * Alive gets handled by iwl3945_init_alive_start()). |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2439 | */ |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 2440 | static void iwl3945_alive_start(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2441 | { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2442 | int thermal_spin = 0; |
| 2443 | u32 rfkill; |
| 2444 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2445 | IWL_DEBUG_INFO(priv, "Runtime Alive received.\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2446 | |
| 2447 | if (priv->card_alive.is_valid != UCODE_VALID_OK) { |
| 2448 | /* We had an error bringing up the hardware, so take it |
| 2449 | * all the way back down so we can try again */ |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2450 | IWL_DEBUG_INFO(priv, "Alive failed.\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2451 | goto restart; |
| 2452 | } |
| 2453 | |
| 2454 | /* Initialize uCode has loaded Runtime uCode ... verify inst image. |
| 2455 | * This is a paranoid check, because we would not have gotten the |
| 2456 | * "runtime" alive if code weren't properly loaded. */ |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 2457 | if (iwl3945_verify_ucode(priv)) { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2458 | /* Runtime instruction load was bad; |
| 2459 | * take it all the way back down so we can try again */ |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2460 | IWL_DEBUG_INFO(priv, "Bad runtime uCode load.\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2461 | goto restart; |
| 2462 | } |
| 2463 | |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 2464 | iwl_clear_stations_table(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2465 | |
Abhijeet Kolekar | 5d49f49 | 2008-12-19 10:37:29 +0800 | [diff] [blame] | 2466 | rfkill = iwl_read_prph(priv, APMG_RFKILL_REG); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2467 | IWL_DEBUG_INFO(priv, "RFKILL status: 0x%x\n", rfkill); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2468 | |
| 2469 | if (rfkill & 0x1) { |
| 2470 | clear_bit(STATUS_RF_KILL_HW, &priv->status); |
Tomas Winkler | a96a27f | 2008-10-23 23:48:56 -0700 | [diff] [blame] | 2471 | /* if RFKILL is not on, then wait for thermal |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2472 | * sensor in adapter to kick in */ |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 2473 | while (iwl3945_hw_get_temperature(priv) == 0) { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2474 | thermal_spin++; |
| 2475 | udelay(10); |
| 2476 | } |
| 2477 | |
| 2478 | if (thermal_spin) |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2479 | IWL_DEBUG_INFO(priv, "Thermal calibration took %dus\n", |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2480 | thermal_spin * 10); |
| 2481 | } else |
| 2482 | set_bit(STATUS_RF_KILL_HW, &priv->status); |
| 2483 | |
Ben Cahill | 9fbab51 | 2007-11-29 11:09:47 +0800 | [diff] [blame] | 2484 | /* After the ALIVE response, we can send commands to 3945 uCode */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2485 | set_bit(STATUS_ALIVE, &priv->status); |
| 2486 | |
Kolekar, Abhijeet | 775a6e2 | 2008-12-19 10:37:36 +0800 | [diff] [blame] | 2487 | if (iwl_is_rfkill(priv)) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2488 | return; |
| 2489 | |
Johannes Berg | 36d6825 | 2008-05-15 12:55:26 +0200 | [diff] [blame] | 2490 | ieee80211_wake_queues(priv->hw); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2491 | |
| 2492 | priv->active_rate = priv->rates_mask; |
| 2493 | priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK; |
| 2494 | |
Winkler, Tomas | d25aabb | 2009-01-27 14:27:58 -0800 | [diff] [blame] | 2495 | iwl_power_update_mode(priv, false); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2496 | |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 2497 | if (iwl_is_associated(priv)) { |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 2498 | struct iwl3945_rxon_cmd *active_rxon = |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 2499 | (struct iwl3945_rxon_cmd *)(&priv->active_rxon); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2500 | |
Abhijeet Kolekar | 8a9b992 | 2009-06-12 13:22:52 -0700 | [diff] [blame] | 2501 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2502 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
| 2503 | } else { |
| 2504 | /* Initialize our rx_config data */ |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 2505 | iwl_connection_init_rx_config(priv, priv->iw_mode); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2506 | } |
| 2507 | |
Ben Cahill | 9fbab51 | 2007-11-29 11:09:47 +0800 | [diff] [blame] | 2508 | /* Configure Bluetooth device coexistence support */ |
Samuel Ortiz | 17f841c | 2009-01-23 13:45:20 -0800 | [diff] [blame] | 2509 | iwl_send_bt_config(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2510 | |
| 2511 | /* Configure the adapter for unassociated operation */ |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 2512 | iwlcore_commit_rxon(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2513 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2514 | iwl3945_reg_txpower_periodic(priv); |
| 2515 | |
Reinette Chatre | fe00b5a | 2008-04-03 16:05:23 -0700 | [diff] [blame] | 2516 | iwl3945_led_register(priv); |
| 2517 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2518 | IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n"); |
Rick Farrington | a9f4678 | 2008-03-18 14:57:49 -0700 | [diff] [blame] | 2519 | set_bit(STATUS_READY, &priv->status); |
Zhu Yi | 5a66926 | 2008-01-14 17:46:18 -0800 | [diff] [blame] | 2520 | wake_up_interruptible(&priv->wait_command_queue); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2521 | |
Mohamed Abbas | 9bdf5ec | 2008-11-07 09:58:35 -0800 | [diff] [blame] | 2522 | /* reassociate for ADHOC mode */ |
| 2523 | if (priv->vif && (priv->iw_mode == NL80211_IFTYPE_ADHOC)) { |
| 2524 | struct sk_buff *beacon = ieee80211_beacon_get(priv->hw, |
| 2525 | priv->vif); |
| 2526 | if (beacon) |
Abhijeet Kolekar | 9944b93 | 2009-04-08 11:26:36 -0700 | [diff] [blame] | 2527 | iwl_mac_beacon_update(priv->hw, beacon); |
Mohamed Abbas | 9bdf5ec | 2008-11-07 09:58:35 -0800 | [diff] [blame] | 2528 | } |
| 2529 | |
Abhijeet Kolekar | f45c271 | 2009-04-08 11:26:38 -0700 | [diff] [blame] | 2530 | if (test_and_clear_bit(STATUS_MODE_PENDING, &priv->status)) |
Abhijeet Kolekar | 727882d | 2009-04-08 11:26:45 -0700 | [diff] [blame] | 2531 | iwl_set_mode(priv, priv->iw_mode); |
Abhijeet Kolekar | f45c271 | 2009-04-08 11:26:38 -0700 | [diff] [blame] | 2532 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2533 | return; |
| 2534 | |
| 2535 | restart: |
| 2536 | queue_work(priv->workqueue, &priv->restart); |
| 2537 | } |
| 2538 | |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 2539 | static void iwl3945_cancel_deferred_work(struct iwl_priv *priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2540 | |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 2541 | static void __iwl3945_down(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2542 | { |
| 2543 | unsigned long flags; |
| 2544 | int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status); |
| 2545 | struct ieee80211_conf *conf = NULL; |
| 2546 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2547 | IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2548 | |
| 2549 | conf = ieee80211_get_hw_conf(priv->hw); |
| 2550 | |
| 2551 | if (!exit_pending) |
| 2552 | set_bit(STATUS_EXIT_PENDING, &priv->status); |
| 2553 | |
Mohamed Abbas | ab53d8a | 2008-03-25 16:33:36 -0700 | [diff] [blame] | 2554 | iwl3945_led_unregister(priv); |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 2555 | iwl_clear_stations_table(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2556 | |
| 2557 | /* Unblock any waiting calls */ |
| 2558 | wake_up_interruptible_all(&priv->wait_command_queue); |
| 2559 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2560 | /* Wipe out the EXIT_PENDING status bit if we are not actually |
| 2561 | * exiting the module */ |
| 2562 | if (!exit_pending) |
| 2563 | clear_bit(STATUS_EXIT_PENDING, &priv->status); |
| 2564 | |
| 2565 | /* stop and reset the on-board processor */ |
Abhijeet Kolekar | 5d49f49 | 2008-12-19 10:37:29 +0800 | [diff] [blame] | 2566 | iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2567 | |
| 2568 | /* tell the device to stop sending interrupts */ |
Mohamed Abbas | 0359fac | 2008-03-28 16:21:08 -0700 | [diff] [blame] | 2569 | spin_lock_irqsave(&priv->lock, flags); |
Abhijeet Kolekar | ed3b932 | 2009-02-18 15:54:30 -0800 | [diff] [blame] | 2570 | iwl_disable_interrupts(priv); |
Mohamed Abbas | 0359fac | 2008-03-28 16:21:08 -0700 | [diff] [blame] | 2571 | spin_unlock_irqrestore(&priv->lock, flags); |
| 2572 | iwl_synchronize_irq(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2573 | |
| 2574 | if (priv->mac80211_registered) |
| 2575 | ieee80211_stop_queues(priv->hw); |
| 2576 | |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 2577 | /* If we have not previously called iwl3945_init() then |
Wey-Yi Guy | 6da3a13 | 2009-03-26 10:14:08 -0700 | [diff] [blame] | 2578 | * clear all bits but the RF Kill bits and return */ |
Kolekar, Abhijeet | 775a6e2 | 2008-12-19 10:37:36 +0800 | [diff] [blame] | 2579 | if (!iwl_is_init(priv)) { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2580 | priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) << |
| 2581 | STATUS_RF_KILL_HW | |
Reinette Chatre | 9788864 | 2008-02-06 11:20:38 -0800 | [diff] [blame] | 2582 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
| 2583 | STATUS_GEO_CONFIGURED | |
Abhijeet Kolekar | ebef200 | 2008-06-30 17:23:18 +0800 | [diff] [blame] | 2584 | test_bit(STATUS_EXIT_PENDING, &priv->status) << |
| 2585 | STATUS_EXIT_PENDING; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2586 | goto exit; |
| 2587 | } |
| 2588 | |
Wey-Yi Guy | 6da3a13 | 2009-03-26 10:14:08 -0700 | [diff] [blame] | 2589 | /* ...otherwise clear out all the status bits but the RF Kill |
Johannes Berg | a60e77e | 2009-06-04 18:26:06 +0200 | [diff] [blame] | 2590 | * bit and continue taking the NIC down. */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2591 | priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) << |
| 2592 | STATUS_RF_KILL_HW | |
Reinette Chatre | 9788864 | 2008-02-06 11:20:38 -0800 | [diff] [blame] | 2593 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
| 2594 | STATUS_GEO_CONFIGURED | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2595 | test_bit(STATUS_FW_ERROR, &priv->status) << |
Abhijeet Kolekar | ebef200 | 2008-06-30 17:23:18 +0800 | [diff] [blame] | 2596 | STATUS_FW_ERROR | |
| 2597 | test_bit(STATUS_EXIT_PENDING, &priv->status) << |
| 2598 | STATUS_EXIT_PENDING; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2599 | |
Abbas, Mohamed | e9414b6 | 2009-01-20 21:33:55 -0800 | [diff] [blame] | 2600 | priv->cfg->ops->lib->apm_ops.reset(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2601 | spin_lock_irqsave(&priv->lock, flags); |
Abhijeet Kolekar | 5d49f49 | 2008-12-19 10:37:29 +0800 | [diff] [blame] | 2602 | iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2603 | spin_unlock_irqrestore(&priv->lock, flags); |
| 2604 | |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 2605 | iwl3945_hw_txq_ctx_stop(priv); |
| 2606 | iwl3945_hw_rxq_stop(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2607 | |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 2608 | iwl_write_prph(priv, APMG_CLK_DIS_REG, |
| 2609 | APMG_CLK_VAL_DMA_CLK_RQT); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2610 | |
| 2611 | udelay(5); |
| 2612 | |
Wey-Yi Guy | 6da3a13 | 2009-03-26 10:14:08 -0700 | [diff] [blame] | 2613 | if (exit_pending) |
Abbas, Mohamed | e9414b6 | 2009-01-20 21:33:55 -0800 | [diff] [blame] | 2614 | priv->cfg->ops->lib->apm_ops.stop(priv); |
| 2615 | else |
| 2616 | priv->cfg->ops->lib->apm_ops.reset(priv); |
| 2617 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2618 | exit: |
Tomas Winkler | 3d24a9f | 2008-12-19 10:37:07 +0800 | [diff] [blame] | 2619 | memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp)); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2620 | |
| 2621 | if (priv->ibss_beacon) |
| 2622 | dev_kfree_skb(priv->ibss_beacon); |
| 2623 | priv->ibss_beacon = NULL; |
| 2624 | |
| 2625 | /* clear out any free frames */ |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 2626 | iwl3945_clear_free_frames(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2627 | } |
| 2628 | |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 2629 | static void iwl3945_down(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2630 | { |
| 2631 | mutex_lock(&priv->mutex); |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 2632 | __iwl3945_down(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2633 | mutex_unlock(&priv->mutex); |
Zhu Yi | b24d22b | 2007-12-19 13:59:52 +0800 | [diff] [blame] | 2634 | |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 2635 | iwl3945_cancel_deferred_work(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2636 | } |
| 2637 | |
| 2638 | #define MAX_HW_RESTARTS 5 |
| 2639 | |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 2640 | static int __iwl3945_up(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2641 | { |
| 2642 | int rc, i; |
| 2643 | |
| 2644 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { |
Winkler, Tomas | 39aadf8 | 2008-12-19 10:37:32 +0800 | [diff] [blame] | 2645 | IWL_WARN(priv, "Exit pending; will not bring the NIC up\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2646 | return -EIO; |
| 2647 | } |
| 2648 | |
Reinette Chatre | e903fbd | 2008-01-30 22:05:15 -0800 | [diff] [blame] | 2649 | if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 2650 | IWL_ERR(priv, "ucode not available for device bring up\n"); |
Reinette Chatre | e903fbd | 2008-01-30 22:05:15 -0800 | [diff] [blame] | 2651 | return -EIO; |
| 2652 | } |
| 2653 | |
Zhu Yi | e655b9f | 2008-01-24 02:19:38 -0800 | [diff] [blame] | 2654 | /* If platform's RF_KILL switch is NOT set to KILL */ |
Abhijeet Kolekar | 5d49f49 | 2008-12-19 10:37:29 +0800 | [diff] [blame] | 2655 | if (iwl_read32(priv, CSR_GP_CNTRL) & |
Zhu Yi | e655b9f | 2008-01-24 02:19:38 -0800 | [diff] [blame] | 2656 | CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) |
| 2657 | clear_bit(STATUS_RF_KILL_HW, &priv->status); |
| 2658 | else { |
| 2659 | set_bit(STATUS_RF_KILL_HW, &priv->status); |
Wey-Yi Guy | 6da3a13 | 2009-03-26 10:14:08 -0700 | [diff] [blame] | 2660 | IWL_WARN(priv, "Radio disabled by HW RF Kill switch\n"); |
| 2661 | return -ENODEV; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2662 | } |
Adel Gadllah | 80fcc9e | 2008-07-01 17:49:50 +0200 | [diff] [blame] | 2663 | |
Abhijeet Kolekar | 5d49f49 | 2008-12-19 10:37:29 +0800 | [diff] [blame] | 2664 | iwl_write32(priv, CSR_INT, 0xFFFFFFFF); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2665 | |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 2666 | rc = iwl3945_hw_nic_init(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2667 | if (rc) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 2668 | IWL_ERR(priv, "Unable to int nic\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2669 | return rc; |
| 2670 | } |
| 2671 | |
| 2672 | /* make sure rfkill handshake bits are cleared */ |
Abhijeet Kolekar | 5d49f49 | 2008-12-19 10:37:29 +0800 | [diff] [blame] | 2673 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
| 2674 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2675 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
| 2676 | |
| 2677 | /* clear (again), then enable host interrupts */ |
Abhijeet Kolekar | 5d49f49 | 2008-12-19 10:37:29 +0800 | [diff] [blame] | 2678 | iwl_write32(priv, CSR_INT, 0xFFFFFFFF); |
Abhijeet Kolekar | ed3b932 | 2009-02-18 15:54:30 -0800 | [diff] [blame] | 2679 | iwl_enable_interrupts(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2680 | |
| 2681 | /* really make sure rfkill handshake bits are cleared */ |
Abhijeet Kolekar | 5d49f49 | 2008-12-19 10:37:29 +0800 | [diff] [blame] | 2682 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
| 2683 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2684 | |
| 2685 | /* Copy original ucode data image from disk into backup cache. |
| 2686 | * This will be used to initialize the on-board processor's |
| 2687 | * data SRAM for a clean start when the runtime program first loads. */ |
| 2688 | memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr, |
Zhu Yi | 5a66926 | 2008-01-14 17:46:18 -0800 | [diff] [blame] | 2689 | priv->ucode_data.len); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2690 | |
Zhu Yi | e655b9f | 2008-01-24 02:19:38 -0800 | [diff] [blame] | 2691 | /* We return success when we resume from suspend and rf_kill is on. */ |
| 2692 | if (test_bit(STATUS_RF_KILL_HW, &priv->status)) |
| 2693 | return 0; |
| 2694 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2695 | for (i = 0; i < MAX_HW_RESTARTS; i++) { |
| 2696 | |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 2697 | iwl_clear_stations_table(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2698 | |
| 2699 | /* load bootstrap state machine, |
| 2700 | * load bootstrap program into processor's memory, |
| 2701 | * prepare to load the "initialize" uCode */ |
Kolekar, Abhijeet | 0164b9b | 2008-12-19 10:37:37 +0800 | [diff] [blame] | 2702 | priv->cfg->ops->lib->load_ucode(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2703 | |
| 2704 | if (rc) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 2705 | IWL_ERR(priv, |
| 2706 | "Unable to set up bootstrap uCode: %d\n", rc); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2707 | continue; |
| 2708 | } |
| 2709 | |
| 2710 | /* start card; "initialize" will load runtime ucode */ |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 2711 | iwl3945_nic_start(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2712 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2713 | IWL_DEBUG_INFO(priv, DRV_NAME " is coming up\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2714 | |
| 2715 | return 0; |
| 2716 | } |
| 2717 | |
| 2718 | set_bit(STATUS_EXIT_PENDING, &priv->status); |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 2719 | __iwl3945_down(priv); |
Abhijeet Kolekar | ebef200 | 2008-06-30 17:23:18 +0800 | [diff] [blame] | 2720 | clear_bit(STATUS_EXIT_PENDING, &priv->status); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2721 | |
| 2722 | /* tried to restart and config the device for as long as our |
| 2723 | * patience could withstand */ |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 2724 | IWL_ERR(priv, "Unable to initialize device after %d attempts.\n", i); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2725 | return -EIO; |
| 2726 | } |
| 2727 | |
| 2728 | |
| 2729 | /***************************************************************************** |
| 2730 | * |
| 2731 | * Workqueue callbacks |
| 2732 | * |
| 2733 | *****************************************************************************/ |
| 2734 | |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 2735 | static void iwl3945_bg_init_alive_start(struct work_struct *data) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2736 | { |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 2737 | struct iwl_priv *priv = |
| 2738 | container_of(data, struct iwl_priv, init_alive_start.work); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2739 | |
| 2740 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
| 2741 | return; |
| 2742 | |
| 2743 | mutex_lock(&priv->mutex); |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 2744 | iwl3945_init_alive_start(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2745 | mutex_unlock(&priv->mutex); |
| 2746 | } |
| 2747 | |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 2748 | static void iwl3945_bg_alive_start(struct work_struct *data) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2749 | { |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 2750 | struct iwl_priv *priv = |
| 2751 | container_of(data, struct iwl_priv, alive_start.work); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2752 | |
| 2753 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
| 2754 | return; |
| 2755 | |
| 2756 | mutex_lock(&priv->mutex); |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 2757 | iwl3945_alive_start(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2758 | mutex_unlock(&priv->mutex); |
| 2759 | } |
| 2760 | |
Helmut Schaa | 2663516 | 2009-01-15 09:38:44 +0100 | [diff] [blame] | 2761 | static void iwl3945_rfkill_poll(struct work_struct *data) |
| 2762 | { |
| 2763 | struct iwl_priv *priv = |
| 2764 | container_of(data, struct iwl_priv, rfkill_poll.work); |
Helmut Schaa | 2663516 | 2009-01-15 09:38:44 +0100 | [diff] [blame] | 2765 | |
| 2766 | if (iwl_read32(priv, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) |
| 2767 | clear_bit(STATUS_RF_KILL_HW, &priv->status); |
| 2768 | else |
| 2769 | set_bit(STATUS_RF_KILL_HW, &priv->status); |
| 2770 | |
Johannes Berg | a60e77e | 2009-06-04 18:26:06 +0200 | [diff] [blame] | 2771 | wiphy_rfkill_set_hw_state(priv->hw->wiphy, |
| 2772 | test_bit(STATUS_RF_KILL_HW, &priv->status)); |
Helmut Schaa | 2663516 | 2009-01-15 09:38:44 +0100 | [diff] [blame] | 2773 | |
| 2774 | queue_delayed_work(priv->workqueue, &priv->rfkill_poll, |
| 2775 | round_jiffies_relative(2 * HZ)); |
| 2776 | |
| 2777 | } |
| 2778 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2779 | #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ) |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 2780 | static void iwl3945_bg_request_scan(struct work_struct *data) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2781 | { |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 2782 | struct iwl_priv *priv = |
| 2783 | container_of(data, struct iwl_priv, request_scan); |
Winkler, Tomas | c2d79b4 | 2008-12-19 10:37:34 +0800 | [diff] [blame] | 2784 | struct iwl_host_cmd cmd = { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2785 | .id = REPLY_SCAN_CMD, |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 2786 | .len = sizeof(struct iwl3945_scan_cmd), |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2787 | .meta.flags = CMD_SIZE_HUGE, |
| 2788 | }; |
| 2789 | int rc = 0; |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 2790 | struct iwl3945_scan_cmd *scan; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2791 | struct ieee80211_conf *conf = NULL; |
Johannes Berg | 1ecf9fc | 2009-04-20 14:36:56 -0700 | [diff] [blame] | 2792 | u8 n_probes = 0; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 2793 | enum ieee80211_band band; |
Johannes Berg | 1ecf9fc | 2009-04-20 14:36:56 -0700 | [diff] [blame] | 2794 | bool is_active = false; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2795 | |
| 2796 | conf = ieee80211_get_hw_conf(priv->hw); |
| 2797 | |
| 2798 | mutex_lock(&priv->mutex); |
| 2799 | |
Reinette Chatre | fbc9f97 | 2009-05-15 16:13:46 -0700 | [diff] [blame] | 2800 | cancel_delayed_work(&priv->scan_check); |
| 2801 | |
Kolekar, Abhijeet | 775a6e2 | 2008-12-19 10:37:36 +0800 | [diff] [blame] | 2802 | if (!iwl_is_ready(priv)) { |
Winkler, Tomas | 39aadf8 | 2008-12-19 10:37:32 +0800 | [diff] [blame] | 2803 | IWL_WARN(priv, "request scan called when driver not ready.\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2804 | goto done; |
| 2805 | } |
| 2806 | |
Tomas Winkler | a96a27f | 2008-10-23 23:48:56 -0700 | [diff] [blame] | 2807 | /* Make sure the scan wasn't canceled before this queued work |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2808 | * was given the chance to run... */ |
| 2809 | if (!test_bit(STATUS_SCANNING, &priv->status)) |
| 2810 | goto done; |
| 2811 | |
| 2812 | /* This should never be called or scheduled if there is currently |
| 2813 | * a scan active in the hardware. */ |
| 2814 | if (test_bit(STATUS_SCAN_HW, &priv->status)) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2815 | IWL_DEBUG_INFO(priv, "Multiple concurrent scan requests " |
| 2816 | "Ignoring second request.\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2817 | rc = -EIO; |
| 2818 | goto done; |
| 2819 | } |
| 2820 | |
| 2821 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2822 | IWL_DEBUG_SCAN(priv, "Aborting scan due to device shutdown\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2823 | goto done; |
| 2824 | } |
| 2825 | |
| 2826 | if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2827 | IWL_DEBUG_HC(priv, |
| 2828 | "Scan request while abort pending. Queuing.\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2829 | goto done; |
| 2830 | } |
| 2831 | |
Kolekar, Abhijeet | 775a6e2 | 2008-12-19 10:37:36 +0800 | [diff] [blame] | 2832 | if (iwl_is_rfkill(priv)) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2833 | IWL_DEBUG_HC(priv, "Aborting scan due to RF Kill activation\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2834 | goto done; |
| 2835 | } |
| 2836 | |
| 2837 | if (!test_bit(STATUS_READY, &priv->status)) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2838 | IWL_DEBUG_HC(priv, |
| 2839 | "Scan request while uninitialized. Queuing.\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2840 | goto done; |
| 2841 | } |
| 2842 | |
| 2843 | if (!priv->scan_bands) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2844 | IWL_DEBUG_HC(priv, "Aborting scan due to no requested bands\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2845 | goto done; |
| 2846 | } |
| 2847 | |
Winkler, Tomas | 805cee5 | 2009-01-19 15:30:28 -0800 | [diff] [blame] | 2848 | if (!priv->scan) { |
| 2849 | priv->scan = kmalloc(sizeof(struct iwl3945_scan_cmd) + |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2850 | IWL_MAX_SCAN_SIZE, GFP_KERNEL); |
Winkler, Tomas | 805cee5 | 2009-01-19 15:30:28 -0800 | [diff] [blame] | 2851 | if (!priv->scan) { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2852 | rc = -ENOMEM; |
| 2853 | goto done; |
| 2854 | } |
| 2855 | } |
Winkler, Tomas | 805cee5 | 2009-01-19 15:30:28 -0800 | [diff] [blame] | 2856 | scan = priv->scan; |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 2857 | memset(scan, 0, sizeof(struct iwl3945_scan_cmd) + IWL_MAX_SCAN_SIZE); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2858 | |
| 2859 | scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH; |
| 2860 | scan->quiet_time = IWL_ACTIVE_QUIET_TIME; |
| 2861 | |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 2862 | if (iwl_is_associated(priv)) { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2863 | u16 interval = 0; |
| 2864 | u32 extra; |
| 2865 | u32 suspend_time = 100; |
| 2866 | u32 scan_suspend_time = 100; |
| 2867 | unsigned long flags; |
| 2868 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2869 | IWL_DEBUG_INFO(priv, "Scanning while associated...\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2870 | |
| 2871 | spin_lock_irqsave(&priv->lock, flags); |
| 2872 | interval = priv->beacon_int; |
| 2873 | spin_unlock_irqrestore(&priv->lock, flags); |
| 2874 | |
| 2875 | scan->suspend_time = 0; |
Mohamed Abbas | 15e869d | 2007-10-25 17:15:46 +0800 | [diff] [blame] | 2876 | scan->max_out_time = cpu_to_le32(200 * 1024); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2877 | if (!interval) |
| 2878 | interval = suspend_time; |
| 2879 | /* |
| 2880 | * suspend time format: |
| 2881 | * 0-19: beacon interval in usec (time before exec.) |
| 2882 | * 20-23: 0 |
| 2883 | * 24-31: number of beacons (suspend between channels) |
| 2884 | */ |
| 2885 | |
| 2886 | extra = (suspend_time / interval) << 24; |
| 2887 | scan_suspend_time = 0xFF0FFFFF & |
| 2888 | (extra | ((suspend_time % interval) * 1024)); |
| 2889 | |
| 2890 | scan->suspend_time = cpu_to_le32(scan_suspend_time); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2891 | IWL_DEBUG_SCAN(priv, "suspend_time 0x%X beacon interval %d\n", |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2892 | scan_suspend_time, interval); |
| 2893 | } |
| 2894 | |
Johannes Berg | 1ecf9fc | 2009-04-20 14:36:56 -0700 | [diff] [blame] | 2895 | if (priv->scan_request->n_ssids) { |
| 2896 | int i, p = 0; |
| 2897 | IWL_DEBUG_SCAN(priv, "Kicking off active scan\n"); |
| 2898 | for (i = 0; i < priv->scan_request->n_ssids; i++) { |
| 2899 | /* always does wildcard anyway */ |
| 2900 | if (!priv->scan_request->ssids[i].ssid_len) |
| 2901 | continue; |
| 2902 | scan->direct_scan[p].id = WLAN_EID_SSID; |
| 2903 | scan->direct_scan[p].len = |
| 2904 | priv->scan_request->ssids[i].ssid_len; |
| 2905 | memcpy(scan->direct_scan[p].ssid, |
| 2906 | priv->scan_request->ssids[i].ssid, |
| 2907 | priv->scan_request->ssids[i].ssid_len); |
| 2908 | n_probes++; |
| 2909 | p++; |
| 2910 | } |
| 2911 | is_active = true; |
Abhijeet Kolekar | f934052 | 2008-09-03 11:26:58 +0800 | [diff] [blame] | 2912 | } else |
Johannes Berg | 1ecf9fc | 2009-04-20 14:36:56 -0700 | [diff] [blame] | 2913 | IWL_DEBUG_SCAN(priv, "Kicking off passive scan.\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2914 | |
| 2915 | /* We don't build a direct scan probe request; the uCode will do |
| 2916 | * that based on the direct_mask added to each channel entry */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2917 | scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK; |
Abhijeet Kolekar | 3832ec9 | 2008-12-19 10:37:26 +0800 | [diff] [blame] | 2918 | scan->tx_cmd.sta_id = priv->hw_params.bcast_sta_id; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2919 | scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; |
| 2920 | |
| 2921 | /* flags + rate selection */ |
| 2922 | |
Ron Rindjunsky | 66b5004 | 2008-06-25 16:46:31 +0800 | [diff] [blame] | 2923 | if (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2924 | scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK; |
| 2925 | scan->tx_cmd.rate = IWL_RATE_1M_PLCP; |
| 2926 | scan->good_CRC_th = 0; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 2927 | band = IEEE80211_BAND_2GHZ; |
Ron Rindjunsky | 66b5004 | 2008-06-25 16:46:31 +0800 | [diff] [blame] | 2928 | } else if (priv->scan_bands & BIT(IEEE80211_BAND_5GHZ)) { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2929 | scan->tx_cmd.rate = IWL_RATE_6M_PLCP; |
Johannes Berg | b097ad2 | 2009-04-20 14:36:57 -0700 | [diff] [blame] | 2930 | /* |
| 2931 | * If active scaning is requested but a certain channel |
| 2932 | * is marked passive, we can do active scanning if we |
| 2933 | * detect transmissions. |
| 2934 | */ |
| 2935 | scan->good_CRC_th = is_active ? IWL_GOOD_CRC_TH : 0; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 2936 | band = IEEE80211_BAND_5GHZ; |
Ron Rindjunsky | 66b5004 | 2008-06-25 16:46:31 +0800 | [diff] [blame] | 2937 | } else { |
Winkler, Tomas | 39aadf8 | 2008-12-19 10:37:32 +0800 | [diff] [blame] | 2938 | IWL_WARN(priv, "Invalid scan band count\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2939 | goto done; |
| 2940 | } |
| 2941 | |
Samuel Ortiz | 77fecfb8 | 2009-01-23 13:45:12 -0800 | [diff] [blame] | 2942 | scan->tx_cmd.len = cpu_to_le16( |
Johannes Berg | 1ecf9fc | 2009-04-20 14:36:56 -0700 | [diff] [blame] | 2943 | iwl_fill_probe_req(priv, |
| 2944 | (struct ieee80211_mgmt *)scan->data, |
| 2945 | priv->scan_request->ie, |
| 2946 | priv->scan_request->ie_len, |
| 2947 | IWL_MAX_SCAN_SIZE - sizeof(*scan))); |
Samuel Ortiz | 77fecfb8 | 2009-01-23 13:45:12 -0800 | [diff] [blame] | 2948 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2949 | /* select Rx antennas */ |
| 2950 | scan->flags |= iwl3945_get_antenna_flags(priv); |
| 2951 | |
Wey-Yi Guy | 279b05d | 2009-04-20 14:37:00 -0700 | [diff] [blame] | 2952 | if (iwl_is_monitor_mode(priv)) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2953 | scan->filter_flags = RXON_FILTER_PROMISC_MSK; |
| 2954 | |
Abhijeet Kolekar | f934052 | 2008-09-03 11:26:58 +0800 | [diff] [blame] | 2955 | scan->channel_count = |
Johannes Berg | 1ecf9fc | 2009-04-20 14:36:56 -0700 | [diff] [blame] | 2956 | iwl3945_get_channels_for_scan(priv, band, is_active, n_probes, |
Abhijeet Kolekar | f934052 | 2008-09-03 11:26:58 +0800 | [diff] [blame] | 2957 | (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2958 | |
Reinette Chatre | 14b5433 | 2008-11-04 12:21:35 -0800 | [diff] [blame] | 2959 | if (scan->channel_count == 0) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2960 | IWL_DEBUG_SCAN(priv, "channel count %d\n", scan->channel_count); |
Reinette Chatre | 14b5433 | 2008-11-04 12:21:35 -0800 | [diff] [blame] | 2961 | goto done; |
| 2962 | } |
| 2963 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2964 | cmd.len += le16_to_cpu(scan->tx_cmd.len) + |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 2965 | scan->channel_count * sizeof(struct iwl3945_scan_channel); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2966 | cmd.data = scan; |
| 2967 | scan->len = cpu_to_le16(cmd.len); |
| 2968 | |
| 2969 | set_bit(STATUS_SCAN_HW, &priv->status); |
Samuel Ortiz | 518099a | 2009-01-19 15:30:27 -0800 | [diff] [blame] | 2970 | rc = iwl_send_cmd_sync(priv, &cmd); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2971 | if (rc) |
| 2972 | goto done; |
| 2973 | |
| 2974 | queue_delayed_work(priv->workqueue, &priv->scan_check, |
| 2975 | IWL_SCAN_CHECK_WATCHDOG); |
| 2976 | |
| 2977 | mutex_unlock(&priv->mutex); |
| 2978 | return; |
| 2979 | |
| 2980 | done: |
Mohamed Abbas | 2420ebc | 2008-11-04 12:21:34 -0800 | [diff] [blame] | 2981 | /* can not perform scan make sure we clear scanning |
| 2982 | * bits from status so next scan request can be performed. |
| 2983 | * if we dont clear scanning status bit here all next scan |
| 2984 | * will fail |
| 2985 | */ |
| 2986 | clear_bit(STATUS_SCAN_HW, &priv->status); |
| 2987 | clear_bit(STATUS_SCANNING, &priv->status); |
| 2988 | |
Ian Schram | 01ebd06 | 2007-10-25 17:15:22 +0800 | [diff] [blame] | 2989 | /* inform mac80211 scan aborted */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2990 | queue_work(priv->workqueue, &priv->scan_completed); |
| 2991 | mutex_unlock(&priv->mutex); |
| 2992 | } |
| 2993 | |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 2994 | static void iwl3945_bg_up(struct work_struct *data) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2995 | { |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 2996 | struct iwl_priv *priv = container_of(data, struct iwl_priv, up); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 2997 | |
| 2998 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
| 2999 | return; |
| 3000 | |
| 3001 | mutex_lock(&priv->mutex); |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 3002 | __iwl3945_up(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3003 | mutex_unlock(&priv->mutex); |
| 3004 | } |
| 3005 | |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 3006 | static void iwl3945_bg_restart(struct work_struct *data) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3007 | { |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 3008 | struct iwl_priv *priv = container_of(data, struct iwl_priv, restart); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3009 | |
| 3010 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
| 3011 | return; |
| 3012 | |
Johannes Berg | 19cc108 | 2009-05-08 13:44:36 -0700 | [diff] [blame] | 3013 | if (test_and_clear_bit(STATUS_FW_ERROR, &priv->status)) { |
| 3014 | mutex_lock(&priv->mutex); |
| 3015 | priv->vif = NULL; |
| 3016 | priv->is_open = 0; |
| 3017 | mutex_unlock(&priv->mutex); |
| 3018 | iwl3945_down(priv); |
| 3019 | ieee80211_restart_hw(priv->hw); |
| 3020 | } else { |
| 3021 | iwl3945_down(priv); |
| 3022 | queue_work(priv->workqueue, &priv->up); |
| 3023 | } |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3024 | } |
| 3025 | |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 3026 | static void iwl3945_bg_rx_replenish(struct work_struct *data) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3027 | { |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 3028 | struct iwl_priv *priv = |
| 3029 | container_of(data, struct iwl_priv, rx_replenish); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3030 | |
| 3031 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
| 3032 | return; |
| 3033 | |
| 3034 | mutex_lock(&priv->mutex); |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 3035 | iwl3945_rx_replenish(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3036 | mutex_unlock(&priv->mutex); |
| 3037 | } |
| 3038 | |
Mohamed Abbas | 7878a5a | 2007-11-29 11:10:13 +0800 | [diff] [blame] | 3039 | #define IWL_DELAY_NEXT_SCAN (HZ*2) |
| 3040 | |
Abhijeet Kolekar | 5bbe233 | 2009-04-08 11:26:35 -0700 | [diff] [blame] | 3041 | void iwl3945_post_associate(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3042 | { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3043 | int rc = 0; |
| 3044 | struct ieee80211_conf *conf = NULL; |
| 3045 | |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 3046 | if (priv->iw_mode == NL80211_IFTYPE_AP) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 3047 | IWL_ERR(priv, "%s Should not be called in AP mode\n", __func__); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3048 | return; |
| 3049 | } |
| 3050 | |
| 3051 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 3052 | IWL_DEBUG_ASSOC(priv, "Associated as %d to: %pM\n", |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 3053 | priv->assoc_id, priv->active_rxon.bssid_addr); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3054 | |
| 3055 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
| 3056 | return; |
| 3057 | |
Abhijeet Kolekar | 322a981 | 2008-09-03 11:26:27 +0800 | [diff] [blame] | 3058 | if (!priv->vif || !priv->is_open) |
Mohamed Abbas | 6ef89d0 | 2007-10-25 17:15:47 +0800 | [diff] [blame] | 3059 | return; |
Abhijeet Kolekar | 322a981 | 2008-09-03 11:26:27 +0800 | [diff] [blame] | 3060 | |
Winkler, Tomas | af0053d | 2009-01-19 15:30:23 -0800 | [diff] [blame] | 3061 | iwl_scan_cancel_timeout(priv, 200); |
Mohamed Abbas | 15e869d | 2007-10-25 17:15:46 +0800 | [diff] [blame] | 3062 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3063 | conf = ieee80211_get_hw_conf(priv->hw); |
| 3064 | |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 3065 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 3066 | iwlcore_commit_rxon(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3067 | |
Tomas Winkler | 28afaf9 | 2008-12-19 10:37:06 +0800 | [diff] [blame] | 3068 | memset(&priv->rxon_timing, 0, sizeof(struct iwl_rxon_time_cmd)); |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 3069 | iwl3945_setup_rxon_timing(priv); |
Samuel Ortiz | 518099a | 2009-01-19 15:30:27 -0800 | [diff] [blame] | 3070 | rc = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3071 | sizeof(priv->rxon_timing), &priv->rxon_timing); |
| 3072 | if (rc) |
Winkler, Tomas | 39aadf8 | 2008-12-19 10:37:32 +0800 | [diff] [blame] | 3073 | IWL_WARN(priv, "REPLY_RXON_TIMING failed - " |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3074 | "Attempting to continue.\n"); |
| 3075 | |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 3076 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3077 | |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 3078 | priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3079 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 3080 | IWL_DEBUG_ASSOC(priv, "assoc id %d beacon interval %d\n", |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3081 | priv->assoc_id, priv->beacon_int); |
| 3082 | |
| 3083 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE) |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 3084 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3085 | else |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 3086 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3087 | |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 3088 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3089 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 3090 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3091 | else |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 3092 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3093 | |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 3094 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC) |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 3095 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3096 | |
| 3097 | } |
| 3098 | |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 3099 | iwlcore_commit_rxon(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3100 | |
| 3101 | switch (priv->iw_mode) { |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 3102 | case NL80211_IFTYPE_STATION: |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 3103 | iwl3945_rate_scale_init(priv->hw, IWL_AP_ID); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3104 | break; |
| 3105 | |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 3106 | case NL80211_IFTYPE_ADHOC: |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3107 | |
Abhijeet Kolekar | ce546fd | 2008-11-19 15:32:22 -0800 | [diff] [blame] | 3108 | priv->assoc_id = 1; |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 3109 | iwl_add_station(priv, priv->bssid, 0, CMD_SYNC, NULL); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3110 | iwl3945_sync_sta(priv, IWL_STA_ID, |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 3111 | (priv->band == IEEE80211_BAND_5GHZ) ? |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3112 | IWL_RATE_6M_PLCP : IWL_RATE_1M_PLCP, |
| 3113 | CMD_ASYNC); |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 3114 | iwl3945_rate_scale_init(priv->hw, IWL_STA_ID); |
| 3115 | iwl3945_send_beacon_cmd(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3116 | |
| 3117 | break; |
| 3118 | |
| 3119 | default: |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 3120 | IWL_ERR(priv, "%s Should not be called in %d mode\n", |
Tomas Winkler | 3ac7f14 | 2008-07-21 02:40:14 +0300 | [diff] [blame] | 3121 | __func__, priv->iw_mode); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3122 | break; |
| 3123 | } |
| 3124 | |
Abhijeet Kolekar | 14d2aac | 2009-02-27 16:21:24 -0800 | [diff] [blame] | 3125 | iwl_activate_qos(priv, 0); |
Ron Rindjunsky | 292ae17 | 2008-02-06 11:20:39 -0800 | [diff] [blame] | 3126 | |
Mohamed Abbas | 7878a5a | 2007-11-29 11:10:13 +0800 | [diff] [blame] | 3127 | /* we have just associated, don't start scan too early */ |
| 3128 | priv->next_scan_jiffies = jiffies + IWL_DELAY_NEXT_SCAN; |
Abhijeet Kolekar | cd56d33 | 2008-09-03 11:26:21 +0800 | [diff] [blame] | 3129 | } |
| 3130 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3131 | /***************************************************************************** |
| 3132 | * |
| 3133 | * mac80211 entry point functions |
| 3134 | * |
| 3135 | *****************************************************************************/ |
| 3136 | |
Zhu Yi | 5a66926 | 2008-01-14 17:46:18 -0800 | [diff] [blame] | 3137 | #define UCODE_READY_TIMEOUT (2 * HZ) |
| 3138 | |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 3139 | static int iwl3945_mac_start(struct ieee80211_hw *hw) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3140 | { |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 3141 | struct iwl_priv *priv = hw->priv; |
Zhu Yi | 5a66926 | 2008-01-14 17:46:18 -0800 | [diff] [blame] | 3142 | int ret; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3143 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 3144 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3145 | |
| 3146 | /* we should be verifying the device is ready to be opened */ |
| 3147 | mutex_lock(&priv->mutex); |
| 3148 | |
Zhu Yi | 5a66926 | 2008-01-14 17:46:18 -0800 | [diff] [blame] | 3149 | /* fetch ucode file from disk, alloc and copy to bus-master buffers ... |
| 3150 | * ucode filename and max sizes are card-specific. */ |
| 3151 | |
| 3152 | if (!priv->ucode_code.len) { |
| 3153 | ret = iwl3945_read_ucode(priv); |
| 3154 | if (ret) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 3155 | IWL_ERR(priv, "Could not read microcode: %d\n", ret); |
Zhu Yi | 5a66926 | 2008-01-14 17:46:18 -0800 | [diff] [blame] | 3156 | mutex_unlock(&priv->mutex); |
| 3157 | goto out_release_irq; |
| 3158 | } |
| 3159 | } |
| 3160 | |
Zhu Yi | e655b9f | 2008-01-24 02:19:38 -0800 | [diff] [blame] | 3161 | ret = __iwl3945_up(priv); |
Zhu Yi | 5a66926 | 2008-01-14 17:46:18 -0800 | [diff] [blame] | 3162 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3163 | mutex_unlock(&priv->mutex); |
Zhu Yi | 5a66926 | 2008-01-14 17:46:18 -0800 | [diff] [blame] | 3164 | |
Zhu Yi | e655b9f | 2008-01-24 02:19:38 -0800 | [diff] [blame] | 3165 | if (ret) |
| 3166 | goto out_release_irq; |
| 3167 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 3168 | IWL_DEBUG_INFO(priv, "Start UP work.\n"); |
Zhu Yi | e655b9f | 2008-01-24 02:19:38 -0800 | [diff] [blame] | 3169 | |
Zhu Yi | 5a66926 | 2008-01-14 17:46:18 -0800 | [diff] [blame] | 3170 | /* Wait for START_ALIVE from ucode. Otherwise callbacks from |
| 3171 | * mac80211 will not be run successfully. */ |
| 3172 | ret = wait_event_interruptible_timeout(priv->wait_command_queue, |
| 3173 | test_bit(STATUS_READY, &priv->status), |
| 3174 | UCODE_READY_TIMEOUT); |
| 3175 | if (!ret) { |
| 3176 | if (!test_bit(STATUS_READY, &priv->status)) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 3177 | IWL_ERR(priv, |
| 3178 | "Wait for START_ALIVE timeout after %dms.\n", |
| 3179 | jiffies_to_msecs(UCODE_READY_TIMEOUT)); |
Zhu Yi | 5a66926 | 2008-01-14 17:46:18 -0800 | [diff] [blame] | 3180 | ret = -ETIMEDOUT; |
| 3181 | goto out_release_irq; |
| 3182 | } |
| 3183 | } |
| 3184 | |
Helmut Schaa | 2663516 | 2009-01-15 09:38:44 +0100 | [diff] [blame] | 3185 | /* ucode is running and will send rfkill notifications, |
| 3186 | * no need to poll the killswitch state anymore */ |
| 3187 | cancel_delayed_work(&priv->rfkill_poll); |
| 3188 | |
Zhu Yi | e655b9f | 2008-01-24 02:19:38 -0800 | [diff] [blame] | 3189 | priv->is_open = 1; |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 3190 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3191 | return 0; |
Zhu Yi | 5a66926 | 2008-01-14 17:46:18 -0800 | [diff] [blame] | 3192 | |
| 3193 | out_release_irq: |
Zhu Yi | e655b9f | 2008-01-24 02:19:38 -0800 | [diff] [blame] | 3194 | priv->is_open = 0; |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 3195 | IWL_DEBUG_MAC80211(priv, "leave - failed\n"); |
Zhu Yi | 5a66926 | 2008-01-14 17:46:18 -0800 | [diff] [blame] | 3196 | return ret; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3197 | } |
| 3198 | |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 3199 | static void iwl3945_mac_stop(struct ieee80211_hw *hw) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3200 | { |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 3201 | struct iwl_priv *priv = hw->priv; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3202 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 3203 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
Mohamed Abbas | 6ef89d0 | 2007-10-25 17:15:47 +0800 | [diff] [blame] | 3204 | |
Zhu Yi | e655b9f | 2008-01-24 02:19:38 -0800 | [diff] [blame] | 3205 | if (!priv->is_open) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 3206 | IWL_DEBUG_MAC80211(priv, "leave - skip\n"); |
Zhu Yi | e655b9f | 2008-01-24 02:19:38 -0800 | [diff] [blame] | 3207 | return; |
| 3208 | } |
| 3209 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3210 | priv->is_open = 0; |
Zhu Yi | 5a66926 | 2008-01-14 17:46:18 -0800 | [diff] [blame] | 3211 | |
Kolekar, Abhijeet | 775a6e2 | 2008-12-19 10:37:36 +0800 | [diff] [blame] | 3212 | if (iwl_is_ready_rf(priv)) { |
Zhu Yi | e655b9f | 2008-01-24 02:19:38 -0800 | [diff] [blame] | 3213 | /* stop mac, cancel any scan request and clear |
| 3214 | * RXON_FILTER_ASSOC_MSK BIT |
| 3215 | */ |
Zhu Yi | 5a66926 | 2008-01-14 17:46:18 -0800 | [diff] [blame] | 3216 | mutex_lock(&priv->mutex); |
Winkler, Tomas | af0053d | 2009-01-19 15:30:23 -0800 | [diff] [blame] | 3217 | iwl_scan_cancel_timeout(priv, 100); |
Mohamed Abbas | fde3571 | 2007-11-29 11:10:15 +0800 | [diff] [blame] | 3218 | mutex_unlock(&priv->mutex); |
Mohamed Abbas | fde3571 | 2007-11-29 11:10:15 +0800 | [diff] [blame] | 3219 | } |
| 3220 | |
Zhu Yi | 5a66926 | 2008-01-14 17:46:18 -0800 | [diff] [blame] | 3221 | iwl3945_down(priv); |
| 3222 | |
| 3223 | flush_workqueue(priv->workqueue); |
Helmut Schaa | 2663516 | 2009-01-15 09:38:44 +0100 | [diff] [blame] | 3224 | |
| 3225 | /* start polling the killswitch state again */ |
| 3226 | queue_delayed_work(priv->workqueue, &priv->rfkill_poll, |
| 3227 | round_jiffies_relative(2 * HZ)); |
Mohamed Abbas | 6ef89d0 | 2007-10-25 17:15:47 +0800 | [diff] [blame] | 3228 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 3229 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3230 | } |
| 3231 | |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 3232 | static int iwl3945_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3233 | { |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 3234 | struct iwl_priv *priv = hw->priv; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3235 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 3236 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3237 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 3238 | IWL_DEBUG_TX(priv, "dev->xmit(%d bytes) at rate 0x%02x\n", skb->len, |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 3239 | ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3240 | |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 3241 | if (iwl3945_tx_skb(priv, skb)) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3242 | dev_kfree_skb_any(skb); |
| 3243 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 3244 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
Reinette Chatre | 637f883 | 2009-01-19 15:30:32 -0800 | [diff] [blame] | 3245 | return NETDEV_TX_OK; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3246 | } |
| 3247 | |
Abhijeet Kolekar | 60690a6 | 2009-04-08 11:26:49 -0700 | [diff] [blame] | 3248 | void iwl3945_config_ap(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3249 | { |
| 3250 | int rc = 0; |
| 3251 | |
Maarten Lankhorst | d986bcd | 2008-01-23 10:15:16 -0800 | [diff] [blame] | 3252 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3253 | return; |
| 3254 | |
| 3255 | /* The following should be done only at AP bring up */ |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 3256 | if (!(iwl_is_associated(priv))) { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3257 | |
| 3258 | /* RXON - unassoc (to set timing command) */ |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 3259 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 3260 | iwlcore_commit_rxon(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3261 | |
| 3262 | /* RXON Timing */ |
Tomas Winkler | 28afaf9 | 2008-12-19 10:37:06 +0800 | [diff] [blame] | 3263 | memset(&priv->rxon_timing, 0, sizeof(struct iwl_rxon_time_cmd)); |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 3264 | iwl3945_setup_rxon_timing(priv); |
Samuel Ortiz | 518099a | 2009-01-19 15:30:27 -0800 | [diff] [blame] | 3265 | rc = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING, |
| 3266 | sizeof(priv->rxon_timing), |
| 3267 | &priv->rxon_timing); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3268 | if (rc) |
Winkler, Tomas | 39aadf8 | 2008-12-19 10:37:32 +0800 | [diff] [blame] | 3269 | IWL_WARN(priv, "REPLY_RXON_TIMING failed - " |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3270 | "Attempting to continue.\n"); |
| 3271 | |
| 3272 | /* FIXME: what should be the assoc_id for AP? */ |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 3273 | priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3274 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE) |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 3275 | priv->staging_rxon.flags |= |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3276 | RXON_FLG_SHORT_PREAMBLE_MSK; |
| 3277 | else |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 3278 | priv->staging_rxon.flags &= |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3279 | ~RXON_FLG_SHORT_PREAMBLE_MSK; |
| 3280 | |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 3281 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3282 | if (priv->assoc_capability & |
| 3283 | WLAN_CAPABILITY_SHORT_SLOT_TIME) |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 3284 | priv->staging_rxon.flags |= |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3285 | RXON_FLG_SHORT_SLOT_MSK; |
| 3286 | else |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 3287 | priv->staging_rxon.flags &= |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3288 | ~RXON_FLG_SHORT_SLOT_MSK; |
| 3289 | |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 3290 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC) |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 3291 | priv->staging_rxon.flags &= |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3292 | ~RXON_FLG_SHORT_SLOT_MSK; |
| 3293 | } |
| 3294 | /* restore RXON assoc */ |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 3295 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 3296 | iwlcore_commit_rxon(priv); |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 3297 | iwl_add_station(priv, iwl_bcast_addr, 0, CMD_SYNC, NULL); |
Zhu Yi | 556f8db | 2007-09-27 11:27:33 +0800 | [diff] [blame] | 3298 | } |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 3299 | iwl3945_send_beacon_cmd(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3300 | |
| 3301 | /* FIXME - we need to add code here to detect a totally new |
| 3302 | * configuration, reset the AP, unassoc, rxon timing, assoc, |
| 3303 | * clear sta table, add BCAST sta... */ |
| 3304 | } |
| 3305 | |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 3306 | static int iwl3945_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
Johannes Berg | dc822b5 | 2008-12-29 12:55:09 +0100 | [diff] [blame] | 3307 | struct ieee80211_vif *vif, |
| 3308 | struct ieee80211_sta *sta, |
| 3309 | struct ieee80211_key_conf *key) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3310 | { |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 3311 | struct iwl_priv *priv = hw->priv; |
Johannes Berg | dc822b5 | 2008-12-29 12:55:09 +0100 | [diff] [blame] | 3312 | const u8 *addr; |
Abhijeet Kolekar | 6e21f15 | 2009-02-27 16:21:21 -0800 | [diff] [blame] | 3313 | int ret = 0; |
| 3314 | u8 sta_id = IWL_INVALID_STATION; |
| 3315 | u8 static_key; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3316 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 3317 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3318 | |
Kolekar, Abhijeet | df878d8 | 2008-12-19 10:37:35 +0800 | [diff] [blame] | 3319 | if (iwl3945_mod_params.sw_crypto) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 3320 | IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3321 | return -EOPNOTSUPP; |
| 3322 | } |
| 3323 | |
Winkler, Tomas | 4298679 | 2009-01-19 15:30:22 -0800 | [diff] [blame] | 3324 | addr = sta ? sta->addr : iwl_bcast_addr; |
Abhijeet Kolekar | 6e21f15 | 2009-02-27 16:21:21 -0800 | [diff] [blame] | 3325 | static_key = !iwl_is_associated(priv); |
| 3326 | |
| 3327 | if (!static_key) { |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 3328 | sta_id = iwl_find_station(priv, addr); |
Abhijeet Kolekar | 6e21f15 | 2009-02-27 16:21:21 -0800 | [diff] [blame] | 3329 | if (sta_id == IWL_INVALID_STATION) { |
Joe Perches | 1251439 | 2009-04-16 16:23:26 -0700 | [diff] [blame] | 3330 | IWL_DEBUG_MAC80211(priv, "leave - %pM not in station map.\n", |
Abhijeet Kolekar | 6e21f15 | 2009-02-27 16:21:21 -0800 | [diff] [blame] | 3331 | addr); |
| 3332 | return -EINVAL; |
| 3333 | } |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3334 | } |
| 3335 | |
| 3336 | mutex_lock(&priv->mutex); |
Winkler, Tomas | af0053d | 2009-01-19 15:30:23 -0800 | [diff] [blame] | 3337 | iwl_scan_cancel_timeout(priv, 100); |
Abhijeet Kolekar | 6e21f15 | 2009-02-27 16:21:21 -0800 | [diff] [blame] | 3338 | mutex_unlock(&priv->mutex); |
Mohamed Abbas | 15e869d | 2007-10-25 17:15:46 +0800 | [diff] [blame] | 3339 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3340 | switch (cmd) { |
Abhijeet Kolekar | 6e21f15 | 2009-02-27 16:21:21 -0800 | [diff] [blame] | 3341 | case SET_KEY: |
| 3342 | if (static_key) |
| 3343 | ret = iwl3945_set_static_key(priv, key); |
| 3344 | else |
| 3345 | ret = iwl3945_set_dynamic_key(priv, key, sta_id); |
| 3346 | IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3347 | break; |
| 3348 | case DISABLE_KEY: |
Abhijeet Kolekar | 6e21f15 | 2009-02-27 16:21:21 -0800 | [diff] [blame] | 3349 | if (static_key) |
| 3350 | ret = iwl3945_remove_static_key(priv); |
| 3351 | else |
| 3352 | ret = iwl3945_clear_sta_key_info(priv, sta_id); |
| 3353 | IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3354 | break; |
| 3355 | default: |
Winkler, Tomas | 4298679 | 2009-01-19 15:30:22 -0800 | [diff] [blame] | 3356 | ret = -EINVAL; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3357 | } |
| 3358 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 3359 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3360 | |
Winkler, Tomas | 4298679 | 2009-01-19 15:30:22 -0800 | [diff] [blame] | 3361 | return ret; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3362 | } |
| 3363 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3364 | /***************************************************************************** |
| 3365 | * |
| 3366 | * sysfs attributes |
| 3367 | * |
| 3368 | *****************************************************************************/ |
| 3369 | |
Samuel Ortiz | d08853a | 2009-01-23 13:45:17 -0800 | [diff] [blame] | 3370 | #ifdef CONFIG_IWLWIFI_DEBUG |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3371 | |
| 3372 | /* |
| 3373 | * The following adds a new attribute to the sysfs representation |
| 3374 | * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/) |
| 3375 | * used for controlling the debug level. |
| 3376 | * |
| 3377 | * See the level definitions in iwl for details. |
| 3378 | */ |
Samuel Ortiz | 40b8ec0 | 2008-12-19 10:37:08 +0800 | [diff] [blame] | 3379 | static ssize_t show_debug_level(struct device *d, |
| 3380 | struct device_attribute *attr, char *buf) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3381 | { |
Greg Kroah-Hartman | 928841b | 2009-04-30 23:02:47 -0700 | [diff] [blame] | 3382 | struct iwl_priv *priv = dev_get_drvdata(d); |
Samuel Ortiz | 40b8ec0 | 2008-12-19 10:37:08 +0800 | [diff] [blame] | 3383 | |
| 3384 | return sprintf(buf, "0x%08X\n", priv->debug_level); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3385 | } |
Samuel Ortiz | 40b8ec0 | 2008-12-19 10:37:08 +0800 | [diff] [blame] | 3386 | static ssize_t store_debug_level(struct device *d, |
| 3387 | struct device_attribute *attr, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3388 | const char *buf, size_t count) |
| 3389 | { |
Greg Kroah-Hartman | 928841b | 2009-04-30 23:02:47 -0700 | [diff] [blame] | 3390 | struct iwl_priv *priv = dev_get_drvdata(d); |
Samuel Ortiz | 40b8ec0 | 2008-12-19 10:37:08 +0800 | [diff] [blame] | 3391 | unsigned long val; |
| 3392 | int ret; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3393 | |
Samuel Ortiz | 40b8ec0 | 2008-12-19 10:37:08 +0800 | [diff] [blame] | 3394 | ret = strict_strtoul(buf, 0, &val); |
| 3395 | if (ret) |
Tomas Winkler | 978785a | 2008-12-19 10:37:31 +0800 | [diff] [blame] | 3396 | IWL_INFO(priv, "%s is not in hex or decimal form.\n", buf); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3397 | else |
Samuel Ortiz | 40b8ec0 | 2008-12-19 10:37:08 +0800 | [diff] [blame] | 3398 | priv->debug_level = val; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3399 | |
| 3400 | return strnlen(buf, count); |
| 3401 | } |
| 3402 | |
Samuel Ortiz | 40b8ec0 | 2008-12-19 10:37:08 +0800 | [diff] [blame] | 3403 | static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO, |
| 3404 | show_debug_level, store_debug_level); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3405 | |
Samuel Ortiz | d08853a | 2009-01-23 13:45:17 -0800 | [diff] [blame] | 3406 | #endif /* CONFIG_IWLWIFI_DEBUG */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3407 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3408 | static ssize_t show_temperature(struct device *d, |
| 3409 | struct device_attribute *attr, char *buf) |
| 3410 | { |
Greg Kroah-Hartman | 928841b | 2009-04-30 23:02:47 -0700 | [diff] [blame] | 3411 | struct iwl_priv *priv = dev_get_drvdata(d); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3412 | |
Kolekar, Abhijeet | 775a6e2 | 2008-12-19 10:37:36 +0800 | [diff] [blame] | 3413 | if (!iwl_is_alive(priv)) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3414 | return -EAGAIN; |
| 3415 | |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 3416 | return sprintf(buf, "%d\n", iwl3945_hw_get_temperature(priv)); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3417 | } |
| 3418 | |
| 3419 | static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL); |
| 3420 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3421 | static ssize_t show_tx_power(struct device *d, |
| 3422 | struct device_attribute *attr, char *buf) |
| 3423 | { |
Greg Kroah-Hartman | 928841b | 2009-04-30 23:02:47 -0700 | [diff] [blame] | 3424 | struct iwl_priv *priv = dev_get_drvdata(d); |
Winkler, Tomas | 62ea9c5 | 2009-01-19 15:30:29 -0800 | [diff] [blame] | 3425 | return sprintf(buf, "%d\n", priv->tx_power_user_lmt); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3426 | } |
| 3427 | |
| 3428 | static ssize_t store_tx_power(struct device *d, |
| 3429 | struct device_attribute *attr, |
| 3430 | const char *buf, size_t count) |
| 3431 | { |
Greg Kroah-Hartman | 928841b | 2009-04-30 23:02:47 -0700 | [diff] [blame] | 3432 | struct iwl_priv *priv = dev_get_drvdata(d); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3433 | char *p = (char *)buf; |
| 3434 | u32 val; |
| 3435 | |
| 3436 | val = simple_strtoul(p, &p, 10); |
| 3437 | if (p == buf) |
Tomas Winkler | 978785a | 2008-12-19 10:37:31 +0800 | [diff] [blame] | 3438 | IWL_INFO(priv, ": %s is not in decimal form.\n", buf); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3439 | else |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 3440 | iwl3945_hw_reg_set_txpower(priv, val); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3441 | |
| 3442 | return count; |
| 3443 | } |
| 3444 | |
| 3445 | static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power); |
| 3446 | |
| 3447 | static ssize_t show_flags(struct device *d, |
| 3448 | struct device_attribute *attr, char *buf) |
| 3449 | { |
Greg Kroah-Hartman | 928841b | 2009-04-30 23:02:47 -0700 | [diff] [blame] | 3450 | struct iwl_priv *priv = dev_get_drvdata(d); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3451 | |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 3452 | return sprintf(buf, "0x%04X\n", priv->active_rxon.flags); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3453 | } |
| 3454 | |
| 3455 | static ssize_t store_flags(struct device *d, |
| 3456 | struct device_attribute *attr, |
| 3457 | const char *buf, size_t count) |
| 3458 | { |
Greg Kroah-Hartman | 928841b | 2009-04-30 23:02:47 -0700 | [diff] [blame] | 3459 | struct iwl_priv *priv = dev_get_drvdata(d); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3460 | u32 flags = simple_strtoul(buf, NULL, 0); |
| 3461 | |
| 3462 | mutex_lock(&priv->mutex); |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 3463 | if (le32_to_cpu(priv->staging_rxon.flags) != flags) { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3464 | /* Cancel any currently running scans... */ |
Winkler, Tomas | af0053d | 2009-01-19 15:30:23 -0800 | [diff] [blame] | 3465 | if (iwl_scan_cancel_timeout(priv, 100)) |
Winkler, Tomas | 39aadf8 | 2008-12-19 10:37:32 +0800 | [diff] [blame] | 3466 | IWL_WARN(priv, "Could not cancel scan.\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3467 | else { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 3468 | IWL_DEBUG_INFO(priv, "Committing rxon.flags = 0x%04X\n", |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3469 | flags); |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 3470 | priv->staging_rxon.flags = cpu_to_le32(flags); |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 3471 | iwlcore_commit_rxon(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3472 | } |
| 3473 | } |
| 3474 | mutex_unlock(&priv->mutex); |
| 3475 | |
| 3476 | return count; |
| 3477 | } |
| 3478 | |
| 3479 | static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, show_flags, store_flags); |
| 3480 | |
| 3481 | static ssize_t show_filter_flags(struct device *d, |
| 3482 | struct device_attribute *attr, char *buf) |
| 3483 | { |
Greg Kroah-Hartman | 928841b | 2009-04-30 23:02:47 -0700 | [diff] [blame] | 3484 | struct iwl_priv *priv = dev_get_drvdata(d); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3485 | |
| 3486 | return sprintf(buf, "0x%04X\n", |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 3487 | le32_to_cpu(priv->active_rxon.filter_flags)); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3488 | } |
| 3489 | |
| 3490 | static ssize_t store_filter_flags(struct device *d, |
| 3491 | struct device_attribute *attr, |
| 3492 | const char *buf, size_t count) |
| 3493 | { |
Greg Kroah-Hartman | 928841b | 2009-04-30 23:02:47 -0700 | [diff] [blame] | 3494 | struct iwl_priv *priv = dev_get_drvdata(d); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3495 | u32 filter_flags = simple_strtoul(buf, NULL, 0); |
| 3496 | |
| 3497 | mutex_lock(&priv->mutex); |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 3498 | if (le32_to_cpu(priv->staging_rxon.filter_flags) != filter_flags) { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3499 | /* Cancel any currently running scans... */ |
Winkler, Tomas | af0053d | 2009-01-19 15:30:23 -0800 | [diff] [blame] | 3500 | if (iwl_scan_cancel_timeout(priv, 100)) |
Winkler, Tomas | 39aadf8 | 2008-12-19 10:37:32 +0800 | [diff] [blame] | 3501 | IWL_WARN(priv, "Could not cancel scan.\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3502 | else { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 3503 | IWL_DEBUG_INFO(priv, "Committing rxon.filter_flags = " |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3504 | "0x%04X\n", filter_flags); |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 3505 | priv->staging_rxon.filter_flags = |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3506 | cpu_to_le32(filter_flags); |
Abhijeet Kolekar | e0158e6 | 2009-04-08 11:26:37 -0700 | [diff] [blame] | 3507 | iwlcore_commit_rxon(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3508 | } |
| 3509 | } |
| 3510 | mutex_unlock(&priv->mutex); |
| 3511 | |
| 3512 | return count; |
| 3513 | } |
| 3514 | |
| 3515 | static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags, |
| 3516 | store_filter_flags); |
| 3517 | |
Christoph Hellwig | c8b0e6e | 2007-10-25 17:15:51 +0800 | [diff] [blame] | 3518 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3519 | |
| 3520 | static ssize_t show_measurement(struct device *d, |
| 3521 | struct device_attribute *attr, char *buf) |
| 3522 | { |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 3523 | struct iwl_priv *priv = dev_get_drvdata(d); |
Tomas Winkler | 600c0e1 | 2008-12-19 10:37:04 +0800 | [diff] [blame] | 3524 | struct iwl_spectrum_notification measure_report; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3525 | u32 size = sizeof(measure_report), len = 0, ofs = 0; |
Tomas Winkler | 3ac7f14 | 2008-07-21 02:40:14 +0300 | [diff] [blame] | 3526 | u8 *data = (u8 *)&measure_report; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3527 | unsigned long flags; |
| 3528 | |
| 3529 | spin_lock_irqsave(&priv->lock, flags); |
| 3530 | if (!(priv->measurement_status & MEASUREMENT_READY)) { |
| 3531 | spin_unlock_irqrestore(&priv->lock, flags); |
| 3532 | return 0; |
| 3533 | } |
| 3534 | memcpy(&measure_report, &priv->measure_report, size); |
| 3535 | priv->measurement_status = 0; |
| 3536 | spin_unlock_irqrestore(&priv->lock, flags); |
| 3537 | |
| 3538 | while (size && (PAGE_SIZE - len)) { |
| 3539 | hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len, |
| 3540 | PAGE_SIZE - len, 1); |
| 3541 | len = strlen(buf); |
| 3542 | if (PAGE_SIZE - len) |
| 3543 | buf[len++] = '\n'; |
| 3544 | |
| 3545 | ofs += 16; |
| 3546 | size -= min(size, 16U); |
| 3547 | } |
| 3548 | |
| 3549 | return len; |
| 3550 | } |
| 3551 | |
| 3552 | static ssize_t store_measurement(struct device *d, |
| 3553 | struct device_attribute *attr, |
| 3554 | const char *buf, size_t count) |
| 3555 | { |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 3556 | struct iwl_priv *priv = dev_get_drvdata(d); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3557 | struct ieee80211_measurement_params params = { |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 3558 | .channel = le16_to_cpu(priv->active_rxon.channel), |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3559 | .start_time = cpu_to_le64(priv->last_tsf), |
| 3560 | .duration = cpu_to_le16(1), |
| 3561 | }; |
| 3562 | u8 type = IWL_MEASURE_BASIC; |
| 3563 | u8 buffer[32]; |
| 3564 | u8 channel; |
| 3565 | |
| 3566 | if (count) { |
| 3567 | char *p = buffer; |
| 3568 | strncpy(buffer, buf, min(sizeof(buffer), count)); |
| 3569 | channel = simple_strtoul(p, NULL, 0); |
| 3570 | if (channel) |
| 3571 | params.channel = channel; |
| 3572 | |
| 3573 | p = buffer; |
| 3574 | while (*p && *p != ' ') |
| 3575 | p++; |
| 3576 | if (*p) |
| 3577 | type = simple_strtoul(p + 1, NULL, 0); |
| 3578 | } |
| 3579 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 3580 | IWL_DEBUG_INFO(priv, "Invoking measurement of type %d on " |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3581 | "channel %d (for '%s')\n", type, params.channel, buf); |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 3582 | iwl3945_get_measurement(priv, ¶ms, type); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3583 | |
| 3584 | return count; |
| 3585 | } |
| 3586 | |
| 3587 | static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR, |
| 3588 | show_measurement, store_measurement); |
Christoph Hellwig | c8b0e6e | 2007-10-25 17:15:51 +0800 | [diff] [blame] | 3589 | #endif /* CONFIG_IWL3945_SPECTRUM_MEASUREMENT */ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3590 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3591 | static ssize_t store_retry_rate(struct device *d, |
| 3592 | struct device_attribute *attr, |
| 3593 | const char *buf, size_t count) |
| 3594 | { |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 3595 | struct iwl_priv *priv = dev_get_drvdata(d); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3596 | |
| 3597 | priv->retry_rate = simple_strtoul(buf, NULL, 0); |
| 3598 | if (priv->retry_rate <= 0) |
| 3599 | priv->retry_rate = 1; |
| 3600 | |
| 3601 | return count; |
| 3602 | } |
| 3603 | |
| 3604 | static ssize_t show_retry_rate(struct device *d, |
| 3605 | struct device_attribute *attr, char *buf) |
| 3606 | { |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 3607 | struct iwl_priv *priv = dev_get_drvdata(d); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3608 | return sprintf(buf, "%d", priv->retry_rate); |
| 3609 | } |
| 3610 | |
| 3611 | static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, show_retry_rate, |
| 3612 | store_retry_rate); |
| 3613 | |
Winkler, Tomas | d25aabb | 2009-01-27 14:27:58 -0800 | [diff] [blame] | 3614 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3615 | static ssize_t store_power_level(struct device *d, |
| 3616 | struct device_attribute *attr, |
| 3617 | const char *buf, size_t count) |
| 3618 | { |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 3619 | struct iwl_priv *priv = dev_get_drvdata(d); |
Winkler, Tomas | d25aabb | 2009-01-27 14:27:58 -0800 | [diff] [blame] | 3620 | int ret; |
| 3621 | unsigned long mode; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3622 | |
Winkler, Tomas | d25aabb | 2009-01-27 14:27:58 -0800 | [diff] [blame] | 3623 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3624 | mutex_lock(&priv->mutex); |
| 3625 | |
Winkler, Tomas | d25aabb | 2009-01-27 14:27:58 -0800 | [diff] [blame] | 3626 | ret = strict_strtoul(buf, 10, &mode); |
| 3627 | if (ret) |
| 3628 | goto out; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3629 | |
Winkler, Tomas | d25aabb | 2009-01-27 14:27:58 -0800 | [diff] [blame] | 3630 | ret = iwl_power_set_user_mode(priv, mode); |
| 3631 | if (ret) { |
| 3632 | IWL_DEBUG_MAC80211(priv, "failed setting power mode.\n"); |
| 3633 | goto out; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3634 | } |
Winkler, Tomas | d25aabb | 2009-01-27 14:27:58 -0800 | [diff] [blame] | 3635 | ret = count; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3636 | |
| 3637 | out: |
| 3638 | mutex_unlock(&priv->mutex); |
Winkler, Tomas | d25aabb | 2009-01-27 14:27:58 -0800 | [diff] [blame] | 3639 | return ret; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3640 | } |
| 3641 | |
Winkler, Tomas | d25aabb | 2009-01-27 14:27:58 -0800 | [diff] [blame] | 3642 | static ssize_t show_power_level(struct device *d, |
| 3643 | struct device_attribute *attr, char *buf) |
| 3644 | { |
| 3645 | struct iwl_priv *priv = dev_get_drvdata(d); |
| 3646 | int mode = priv->power_data.user_power_setting; |
Winkler, Tomas | d25aabb | 2009-01-27 14:27:58 -0800 | [diff] [blame] | 3647 | int level = priv->power_data.power_mode; |
| 3648 | char *p = buf; |
| 3649 | |
Johannes Berg | 7af2c46 | 2009-05-08 13:44:38 -0700 | [diff] [blame] | 3650 | p += sprintf(p, "INDEX:%d\t", level); |
| 3651 | p += sprintf(p, "USER:%d\n", mode); |
Winkler, Tomas | d25aabb | 2009-01-27 14:27:58 -0800 | [diff] [blame] | 3652 | return p - buf + 1; |
| 3653 | } |
| 3654 | |
| 3655 | static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, |
| 3656 | show_power_level, store_power_level); |
| 3657 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3658 | #define MAX_WX_STRING 80 |
| 3659 | |
| 3660 | /* Values are in microsecond */ |
| 3661 | static const s32 timeout_duration[] = { |
| 3662 | 350000, |
| 3663 | 250000, |
| 3664 | 75000, |
| 3665 | 37000, |
| 3666 | 25000, |
| 3667 | }; |
| 3668 | static const s32 period_duration[] = { |
| 3669 | 400000, |
| 3670 | 700000, |
| 3671 | 1000000, |
| 3672 | 1000000, |
| 3673 | 1000000 |
| 3674 | }; |
| 3675 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3676 | static ssize_t show_channels(struct device *d, |
| 3677 | struct device_attribute *attr, char *buf) |
| 3678 | { |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 3679 | /* all this shit doesn't belong into sysfs anyway */ |
| 3680 | return 0; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3681 | } |
| 3682 | |
| 3683 | static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL); |
| 3684 | |
| 3685 | static ssize_t show_statistics(struct device *d, |
| 3686 | struct device_attribute *attr, char *buf) |
| 3687 | { |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 3688 | struct iwl_priv *priv = dev_get_drvdata(d); |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 3689 | u32 size = sizeof(struct iwl3945_notif_statistics); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3690 | u32 len = 0, ofs = 0; |
Abhijeet Kolekar | f2c7e52 | 2008-12-19 10:37:27 +0800 | [diff] [blame] | 3691 | u8 *data = (u8 *)&priv->statistics_39; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3692 | int rc = 0; |
| 3693 | |
Kolekar, Abhijeet | 775a6e2 | 2008-12-19 10:37:36 +0800 | [diff] [blame] | 3694 | if (!iwl_is_alive(priv)) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3695 | return -EAGAIN; |
| 3696 | |
| 3697 | mutex_lock(&priv->mutex); |
Samuel Ortiz | 17f841c | 2009-01-23 13:45:20 -0800 | [diff] [blame] | 3698 | rc = iwl_send_statistics_request(priv, 0); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3699 | mutex_unlock(&priv->mutex); |
| 3700 | |
| 3701 | if (rc) { |
| 3702 | len = sprintf(buf, |
| 3703 | "Error sending statistics request: 0x%08X\n", rc); |
| 3704 | return len; |
| 3705 | } |
| 3706 | |
| 3707 | while (size && (PAGE_SIZE - len)) { |
| 3708 | hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len, |
| 3709 | PAGE_SIZE - len, 1); |
| 3710 | len = strlen(buf); |
| 3711 | if (PAGE_SIZE - len) |
| 3712 | buf[len++] = '\n'; |
| 3713 | |
| 3714 | ofs += 16; |
| 3715 | size -= min(size, 16U); |
| 3716 | } |
| 3717 | |
| 3718 | return len; |
| 3719 | } |
| 3720 | |
| 3721 | static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL); |
| 3722 | |
| 3723 | static ssize_t show_antenna(struct device *d, |
| 3724 | struct device_attribute *attr, char *buf) |
| 3725 | { |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 3726 | struct iwl_priv *priv = dev_get_drvdata(d); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3727 | |
Kolekar, Abhijeet | 775a6e2 | 2008-12-19 10:37:36 +0800 | [diff] [blame] | 3728 | if (!iwl_is_alive(priv)) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3729 | return -EAGAIN; |
| 3730 | |
Samuel Ortiz | 7e4bca5 | 2009-01-23 13:45:18 -0800 | [diff] [blame] | 3731 | return sprintf(buf, "%d\n", iwl3945_mod_params.antenna); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3732 | } |
| 3733 | |
| 3734 | static ssize_t store_antenna(struct device *d, |
| 3735 | struct device_attribute *attr, |
| 3736 | const char *buf, size_t count) |
| 3737 | { |
Winkler, Tomas | 7530f85 | 2009-01-27 14:27:53 -0800 | [diff] [blame] | 3738 | struct iwl_priv *priv __maybe_unused = dev_get_drvdata(d); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3739 | int ant; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3740 | |
| 3741 | if (count == 0) |
| 3742 | return 0; |
| 3743 | |
| 3744 | if (sscanf(buf, "%1i", &ant) != 1) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 3745 | IWL_DEBUG_INFO(priv, "not in hex or decimal form.\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3746 | return count; |
| 3747 | } |
| 3748 | |
| 3749 | if ((ant >= 0) && (ant <= 2)) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 3750 | IWL_DEBUG_INFO(priv, "Setting antenna select to %d.\n", ant); |
Samuel Ortiz | 7e4bca5 | 2009-01-23 13:45:18 -0800 | [diff] [blame] | 3751 | iwl3945_mod_params.antenna = (enum iwl3945_antenna)ant; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3752 | } else |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 3753 | IWL_DEBUG_INFO(priv, "Bad antenna select value %d.\n", ant); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3754 | |
| 3755 | |
| 3756 | return count; |
| 3757 | } |
| 3758 | |
| 3759 | static DEVICE_ATTR(antenna, S_IWUSR | S_IRUGO, show_antenna, store_antenna); |
| 3760 | |
| 3761 | static ssize_t show_status(struct device *d, |
| 3762 | struct device_attribute *attr, char *buf) |
| 3763 | { |
Greg Kroah-Hartman | 928841b | 2009-04-30 23:02:47 -0700 | [diff] [blame] | 3764 | struct iwl_priv *priv = dev_get_drvdata(d); |
Kolekar, Abhijeet | 775a6e2 | 2008-12-19 10:37:36 +0800 | [diff] [blame] | 3765 | if (!iwl_is_alive(priv)) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3766 | return -EAGAIN; |
| 3767 | return sprintf(buf, "0x%08x\n", (int)priv->status); |
| 3768 | } |
| 3769 | |
| 3770 | static DEVICE_ATTR(status, S_IRUGO, show_status, NULL); |
| 3771 | |
| 3772 | static ssize_t dump_error_log(struct device *d, |
| 3773 | struct device_attribute *attr, |
| 3774 | const char *buf, size_t count) |
| 3775 | { |
Greg Kroah-Hartman | 928841b | 2009-04-30 23:02:47 -0700 | [diff] [blame] | 3776 | struct iwl_priv *priv = dev_get_drvdata(d); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3777 | char *p = (char *)buf; |
| 3778 | |
| 3779 | if (p[0] == '1') |
Greg Kroah-Hartman | 928841b | 2009-04-30 23:02:47 -0700 | [diff] [blame] | 3780 | iwl3945_dump_nic_error_log(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3781 | |
| 3782 | return strnlen(buf, count); |
| 3783 | } |
| 3784 | |
| 3785 | static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, dump_error_log); |
| 3786 | |
| 3787 | static ssize_t dump_event_log(struct device *d, |
| 3788 | struct device_attribute *attr, |
| 3789 | const char *buf, size_t count) |
| 3790 | { |
Greg Kroah-Hartman | 928841b | 2009-04-30 23:02:47 -0700 | [diff] [blame] | 3791 | struct iwl_priv *priv = dev_get_drvdata(d); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3792 | char *p = (char *)buf; |
| 3793 | |
| 3794 | if (p[0] == '1') |
Greg Kroah-Hartman | 928841b | 2009-04-30 23:02:47 -0700 | [diff] [blame] | 3795 | iwl3945_dump_nic_event_log(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3796 | |
| 3797 | return strnlen(buf, count); |
| 3798 | } |
| 3799 | |
| 3800 | static DEVICE_ATTR(dump_events, S_IWUSR, NULL, dump_event_log); |
| 3801 | |
| 3802 | /***************************************************************************** |
| 3803 | * |
Tomas Winkler | a96a27f | 2008-10-23 23:48:56 -0700 | [diff] [blame] | 3804 | * driver setup and tear down |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3805 | * |
| 3806 | *****************************************************************************/ |
| 3807 | |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 3808 | static void iwl3945_setup_deferred_work(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3809 | { |
Reinette Chatre | d21050c | 2009-02-13 11:51:18 -0800 | [diff] [blame] | 3810 | priv->workqueue = create_singlethread_workqueue(DRV_NAME); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3811 | |
| 3812 | init_waitqueue_head(&priv->wait_command_queue); |
| 3813 | |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 3814 | INIT_WORK(&priv->up, iwl3945_bg_up); |
| 3815 | INIT_WORK(&priv->restart, iwl3945_bg_restart); |
| 3816 | INIT_WORK(&priv->rx_replenish, iwl3945_bg_rx_replenish); |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 3817 | INIT_WORK(&priv->beacon_update, iwl3945_bg_beacon_update); |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 3818 | INIT_DELAYED_WORK(&priv->init_alive_start, iwl3945_bg_init_alive_start); |
| 3819 | INIT_DELAYED_WORK(&priv->alive_start, iwl3945_bg_alive_start); |
Helmut Schaa | 2663516 | 2009-01-15 09:38:44 +0100 | [diff] [blame] | 3820 | INIT_DELAYED_WORK(&priv->rfkill_poll, iwl3945_rfkill_poll); |
Samuel Ortiz | 77fecfb8 | 2009-01-23 13:45:12 -0800 | [diff] [blame] | 3821 | INIT_WORK(&priv->scan_completed, iwl_bg_scan_completed); |
| 3822 | INIT_WORK(&priv->request_scan, iwl3945_bg_request_scan); |
| 3823 | INIT_WORK(&priv->abort_scan, iwl_bg_abort_scan); |
| 3824 | INIT_DELAYED_WORK(&priv->scan_check, iwl_bg_scan_check); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3825 | |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 3826 | iwl3945_hw_setup_deferred_work(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3827 | |
| 3828 | tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long)) |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 3829 | iwl3945_irq_tasklet, (unsigned long)priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3830 | } |
| 3831 | |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 3832 | static void iwl3945_cancel_deferred_work(struct iwl_priv *priv) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3833 | { |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 3834 | iwl3945_hw_cancel_deferred_work(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3835 | |
Joonwoo Park | e47eb6a | 2007-11-29 10:42:49 +0900 | [diff] [blame] | 3836 | cancel_delayed_work_sync(&priv->init_alive_start); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3837 | cancel_delayed_work(&priv->scan_check); |
| 3838 | cancel_delayed_work(&priv->alive_start); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3839 | cancel_work_sync(&priv->beacon_update); |
| 3840 | } |
| 3841 | |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 3842 | static struct attribute *iwl3945_sysfs_entries[] = { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3843 | &dev_attr_antenna.attr, |
| 3844 | &dev_attr_channels.attr, |
| 3845 | &dev_attr_dump_errors.attr, |
| 3846 | &dev_attr_dump_events.attr, |
| 3847 | &dev_attr_flags.attr, |
| 3848 | &dev_attr_filter_flags.attr, |
Christoph Hellwig | c8b0e6e | 2007-10-25 17:15:51 +0800 | [diff] [blame] | 3849 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3850 | &dev_attr_measurement.attr, |
| 3851 | #endif |
| 3852 | &dev_attr_power_level.attr, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3853 | &dev_attr_retry_rate.attr, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3854 | &dev_attr_statistics.attr, |
| 3855 | &dev_attr_status.attr, |
| 3856 | &dev_attr_temperature.attr, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3857 | &dev_attr_tx_power.attr, |
Samuel Ortiz | d08853a | 2009-01-23 13:45:17 -0800 | [diff] [blame] | 3858 | #ifdef CONFIG_IWLWIFI_DEBUG |
Samuel Ortiz | 40b8ec0 | 2008-12-19 10:37:08 +0800 | [diff] [blame] | 3859 | &dev_attr_debug_level.attr, |
| 3860 | #endif |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3861 | NULL |
| 3862 | }; |
| 3863 | |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 3864 | static struct attribute_group iwl3945_attribute_group = { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3865 | .name = NULL, /* put in device directory */ |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 3866 | .attrs = iwl3945_sysfs_entries, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3867 | }; |
| 3868 | |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 3869 | static struct ieee80211_ops iwl3945_hw_ops = { |
| 3870 | .tx = iwl3945_mac_tx, |
| 3871 | .start = iwl3945_mac_start, |
| 3872 | .stop = iwl3945_mac_stop, |
Abhijeet Kolekar | cbb6ab9 | 2009-04-08 11:26:46 -0700 | [diff] [blame] | 3873 | .add_interface = iwl_mac_add_interface, |
Abhijeet Kolekar | d805231 | 2009-04-08 11:26:47 -0700 | [diff] [blame] | 3874 | .remove_interface = iwl_mac_remove_interface, |
Abhijeet Kolekar | 4808368 | 2009-04-08 11:26:48 -0700 | [diff] [blame] | 3875 | .config = iwl_mac_config, |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 3876 | .configure_filter = iwl_configure_filter, |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 3877 | .set_key = iwl3945_mac_set_key, |
Abhijeet Kolekar | aa89f31 | 2009-04-08 11:26:51 -0700 | [diff] [blame] | 3878 | .get_tx_stats = iwl_mac_get_tx_stats, |
Abhijeet Kolekar | 488829f | 2009-03-26 10:14:10 -0700 | [diff] [blame] | 3879 | .conf_tx = iwl_mac_conf_tx, |
Abhijeet Kolekar | bd56426 | 2009-04-08 11:26:52 -0700 | [diff] [blame] | 3880 | .reset_tsf = iwl_mac_reset_tsf, |
Abhijeet Kolekar | 5bbe233 | 2009-04-08 11:26:35 -0700 | [diff] [blame] | 3881 | .bss_info_changed = iwl_bss_info_changed, |
Abhijeet Kolekar | e9dde6f6 | 2009-02-18 15:54:27 -0800 | [diff] [blame] | 3882 | .hw_scan = iwl_mac_hw_scan |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3883 | }; |
| 3884 | |
Winkler, Tomas | e52119c | 2008-12-22 11:31:19 +0800 | [diff] [blame] | 3885 | static int iwl3945_init_drv(struct iwl_priv *priv) |
Kolekar, Abhijeet | 90a30a0 | 2008-12-19 10:37:40 +0800 | [diff] [blame] | 3886 | { |
| 3887 | int ret; |
Samuel Ortiz | e614891 | 2009-01-23 13:45:15 -0800 | [diff] [blame] | 3888 | struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom; |
Kolekar, Abhijeet | 90a30a0 | 2008-12-19 10:37:40 +0800 | [diff] [blame] | 3889 | |
| 3890 | priv->retry_rate = 1; |
| 3891 | priv->ibss_beacon = NULL; |
| 3892 | |
| 3893 | spin_lock_init(&priv->lock); |
Kolekar, Abhijeet | 90a30a0 | 2008-12-19 10:37:40 +0800 | [diff] [blame] | 3894 | spin_lock_init(&priv->sta_lock); |
| 3895 | spin_lock_init(&priv->hcmd_lock); |
| 3896 | |
| 3897 | INIT_LIST_HEAD(&priv->free_frames); |
| 3898 | |
| 3899 | mutex_init(&priv->mutex); |
| 3900 | |
| 3901 | /* Clear the driver's (not device's) station table */ |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 3902 | iwl_clear_stations_table(priv); |
Kolekar, Abhijeet | 90a30a0 | 2008-12-19 10:37:40 +0800 | [diff] [blame] | 3903 | |
| 3904 | priv->data_retry_limit = -1; |
| 3905 | priv->ieee_channels = NULL; |
| 3906 | priv->ieee_rates = NULL; |
| 3907 | priv->band = IEEE80211_BAND_2GHZ; |
| 3908 | |
| 3909 | priv->iw_mode = NL80211_IFTYPE_STATION; |
| 3910 | |
| 3911 | iwl_reset_qos(priv); |
| 3912 | |
| 3913 | priv->qos_data.qos_active = 0; |
| 3914 | priv->qos_data.qos_cap.val = 0; |
| 3915 | |
| 3916 | priv->rates_mask = IWL_RATES_MASK; |
Winkler, Tomas | d25aabb | 2009-01-27 14:27:58 -0800 | [diff] [blame] | 3917 | /* If power management is turned on, default to CAM mode */ |
| 3918 | priv->power_mode = IWL_POWER_MODE_CAM; |
Winkler, Tomas | 62ea9c5 | 2009-01-19 15:30:29 -0800 | [diff] [blame] | 3919 | priv->tx_power_user_lmt = IWL_DEFAULT_TX_POWER; |
Kolekar, Abhijeet | 90a30a0 | 2008-12-19 10:37:40 +0800 | [diff] [blame] | 3920 | |
Samuel Ortiz | e614891 | 2009-01-23 13:45:15 -0800 | [diff] [blame] | 3921 | if (eeprom->version < EEPROM_3945_EEPROM_VERSION) { |
| 3922 | IWL_WARN(priv, "Unsupported EEPROM version: 0x%04X\n", |
| 3923 | eeprom->version); |
| 3924 | ret = -EINVAL; |
| 3925 | goto err; |
| 3926 | } |
| 3927 | ret = iwl_init_channel_map(priv); |
Kolekar, Abhijeet | 90a30a0 | 2008-12-19 10:37:40 +0800 | [diff] [blame] | 3928 | if (ret) { |
| 3929 | IWL_ERR(priv, "initializing regulatory failed: %d\n", ret); |
| 3930 | goto err; |
| 3931 | } |
| 3932 | |
Samuel Ortiz | e614891 | 2009-01-23 13:45:15 -0800 | [diff] [blame] | 3933 | /* Set up txpower settings in driver for all channels */ |
| 3934 | if (iwl3945_txpower_set_from_eeprom(priv)) { |
| 3935 | ret = -EIO; |
| 3936 | goto err_free_channel_map; |
| 3937 | } |
| 3938 | |
Samuel Ortiz | 534166d | 2009-01-23 13:45:16 -0800 | [diff] [blame] | 3939 | ret = iwlcore_init_geos(priv); |
Kolekar, Abhijeet | 90a30a0 | 2008-12-19 10:37:40 +0800 | [diff] [blame] | 3940 | if (ret) { |
| 3941 | IWL_ERR(priv, "initializing geos failed: %d\n", ret); |
| 3942 | goto err_free_channel_map; |
| 3943 | } |
Samuel Ortiz | 534166d | 2009-01-23 13:45:16 -0800 | [diff] [blame] | 3944 | iwl3945_init_hw_rates(priv, priv->ieee_rates); |
| 3945 | |
Kolekar, Abhijeet | 90a30a0 | 2008-12-19 10:37:40 +0800 | [diff] [blame] | 3946 | return 0; |
| 3947 | |
| 3948 | err_free_channel_map: |
Samuel Ortiz | e614891 | 2009-01-23 13:45:15 -0800 | [diff] [blame] | 3949 | iwl_free_channel_map(priv); |
Kolekar, Abhijeet | 90a30a0 | 2008-12-19 10:37:40 +0800 | [diff] [blame] | 3950 | err: |
| 3951 | return ret; |
| 3952 | } |
| 3953 | |
Abhijeet Kolekar | 2a4ddaa | 2009-02-27 16:21:23 -0800 | [diff] [blame] | 3954 | static int iwl3945_setup_mac(struct iwl_priv *priv) |
| 3955 | { |
| 3956 | int ret; |
| 3957 | struct ieee80211_hw *hw = priv->hw; |
| 3958 | |
| 3959 | hw->rate_control_algorithm = "iwl-3945-rs"; |
| 3960 | hw->sta_data_size = sizeof(struct iwl3945_sta_priv); |
| 3961 | |
| 3962 | /* Tell mac80211 our characteristics */ |
| 3963 | hw->flags = IEEE80211_HW_SIGNAL_DBM | |
Mohamed Abbas | b1c6019 | 2009-03-17 21:51:47 -0700 | [diff] [blame] | 3964 | IEEE80211_HW_NOISE_DBM | |
| 3965 | IEEE80211_HW_SPECTRUM_MGMT; |
Abhijeet Kolekar | 2a4ddaa | 2009-02-27 16:21:23 -0800 | [diff] [blame] | 3966 | |
| 3967 | hw->wiphy->interface_modes = |
| 3968 | BIT(NL80211_IFTYPE_STATION) | |
| 3969 | BIT(NL80211_IFTYPE_ADHOC); |
| 3970 | |
| 3971 | hw->wiphy->custom_regulatory = true; |
| 3972 | |
Johannes Berg | 1ecf9fc | 2009-04-20 14:36:56 -0700 | [diff] [blame] | 3973 | hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX_3945; |
| 3974 | /* we create the 802.11 header and a zero-length SSID element */ |
| 3975 | hw->wiphy->max_scan_ie_len = IWL_MAX_PROBE_REQUEST - 24 - 2; |
Johannes Berg | d60cc91 | 2009-04-09 09:56:02 +0200 | [diff] [blame] | 3976 | |
Abhijeet Kolekar | 2a4ddaa | 2009-02-27 16:21:23 -0800 | [diff] [blame] | 3977 | /* Default value; 4 EDCA QOS priorities */ |
| 3978 | hw->queues = 4; |
| 3979 | |
Abhijeet Kolekar | 2a4ddaa | 2009-02-27 16:21:23 -0800 | [diff] [blame] | 3980 | if (priv->bands[IEEE80211_BAND_2GHZ].n_channels) |
| 3981 | priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = |
| 3982 | &priv->bands[IEEE80211_BAND_2GHZ]; |
| 3983 | |
| 3984 | if (priv->bands[IEEE80211_BAND_5GHZ].n_channels) |
| 3985 | priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = |
| 3986 | &priv->bands[IEEE80211_BAND_5GHZ]; |
| 3987 | |
| 3988 | ret = ieee80211_register_hw(priv->hw); |
| 3989 | if (ret) { |
| 3990 | IWL_ERR(priv, "Failed to register hw (error %d)\n", ret); |
| 3991 | return ret; |
| 3992 | } |
| 3993 | priv->mac80211_registered = 1; |
| 3994 | |
| 3995 | return 0; |
| 3996 | } |
| 3997 | |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 3998 | static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 3999 | { |
| 4000 | int err = 0; |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 4001 | struct iwl_priv *priv; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4002 | struct ieee80211_hw *hw; |
Kolekar, Abhijeet | c0f20d9 | 2008-12-19 10:37:19 +0800 | [diff] [blame] | 4003 | struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data); |
Samuel Ortiz | e614891 | 2009-01-23 13:45:15 -0800 | [diff] [blame] | 4004 | struct iwl3945_eeprom *eeprom; |
Mohamed Abbas | 0359fac | 2008-03-28 16:21:08 -0700 | [diff] [blame] | 4005 | unsigned long flags; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4006 | |
Kolekar, Abhijeet | cee53dd | 2008-11-12 13:14:04 -0800 | [diff] [blame] | 4007 | /*********************** |
| 4008 | * 1. Allocating HW data |
| 4009 | * ********************/ |
| 4010 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4011 | /* mac80211 allocates memory for this device instance, including |
| 4012 | * space for this driver's private structure */ |
Kolekar, Abhijeet | 90a30a0 | 2008-12-19 10:37:40 +0800 | [diff] [blame] | 4013 | hw = iwl_alloc_all(cfg, &iwl3945_hw_ops); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4014 | if (hw == NULL) { |
Samuel Ortiz | a3139c5 | 2008-12-19 10:37:09 +0800 | [diff] [blame] | 4015 | printk(KERN_ERR DRV_NAME "Can not allocate network device\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4016 | err = -ENOMEM; |
| 4017 | goto out; |
| 4018 | } |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4019 | priv = hw->priv; |
Kolekar, Abhijeet | 90a30a0 | 2008-12-19 10:37:40 +0800 | [diff] [blame] | 4020 | SET_IEEE80211_DEV(hw, &pdev->dev); |
Cahill, Ben M | 6440adb | 2007-11-29 11:09:55 +0800 | [diff] [blame] | 4021 | |
Kolekar, Abhijeet | df878d8 | 2008-12-19 10:37:35 +0800 | [diff] [blame] | 4022 | if ((iwl3945_mod_params.num_of_queues > IWL39_MAX_NUM_QUEUES) || |
| 4023 | (iwl3945_mod_params.num_of_queues < IWL_MIN_NUM_QUEUES)) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 4024 | IWL_ERR(priv, |
| 4025 | "invalid queues_num, should be between %d and %d\n", |
| 4026 | IWL_MIN_NUM_QUEUES, IWL39_MAX_NUM_QUEUES); |
Samuel Ortiz | a3139c5 | 2008-12-19 10:37:09 +0800 | [diff] [blame] | 4027 | err = -EINVAL; |
Reinette Chatre | c8f1613 | 2009-02-27 16:21:22 -0800 | [diff] [blame] | 4028 | goto out_ieee80211_free_hw; |
Samuel Ortiz | a3139c5 | 2008-12-19 10:37:09 +0800 | [diff] [blame] | 4029 | } |
| 4030 | |
Kolekar, Abhijeet | 90a30a0 | 2008-12-19 10:37:40 +0800 | [diff] [blame] | 4031 | /* |
| 4032 | * Disabling hardware scan means that mac80211 will perform scans |
| 4033 | * "the hard way", rather than using device's scan. |
| 4034 | */ |
Kolekar, Abhijeet | df878d8 | 2008-12-19 10:37:35 +0800 | [diff] [blame] | 4035 | if (iwl3945_mod_params.disable_hw_scan) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 4036 | IWL_DEBUG_INFO(priv, "Disabling hw_scan\n"); |
Samuel Ortiz | 40b8ec0 | 2008-12-19 10:37:08 +0800 | [diff] [blame] | 4037 | iwl3945_hw_ops.hw_scan = NULL; |
| 4038 | } |
| 4039 | |
Kolekar, Abhijeet | 90a30a0 | 2008-12-19 10:37:40 +0800 | [diff] [blame] | 4040 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 4041 | IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n"); |
Kolekar, Abhijeet | 90a30a0 | 2008-12-19 10:37:40 +0800 | [diff] [blame] | 4042 | priv->cfg = cfg; |
| 4043 | priv->pci_dev = pdev; |
Mohamed Abbas | 40cefda | 2009-05-22 11:01:52 -0700 | [diff] [blame] | 4044 | priv->inta_mask = CSR_INI_SET_MASK; |
Kolekar, Abhijeet | 90a30a0 | 2008-12-19 10:37:40 +0800 | [diff] [blame] | 4045 | |
Samuel Ortiz | d08853a | 2009-01-23 13:45:17 -0800 | [diff] [blame] | 4046 | #ifdef CONFIG_IWLWIFI_DEBUG |
Kolekar, Abhijeet | 90a30a0 | 2008-12-19 10:37:40 +0800 | [diff] [blame] | 4047 | priv->debug_level = iwl3945_mod_params.debug; |
| 4048 | atomic_set(&priv->restrict_refcnt, 0); |
| 4049 | #endif |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4050 | |
Kolekar, Abhijeet | cee53dd | 2008-11-12 13:14:04 -0800 | [diff] [blame] | 4051 | /*************************** |
| 4052 | * 2. Initializing PCI bus |
| 4053 | * *************************/ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4054 | if (pci_enable_device(pdev)) { |
| 4055 | err = -ENODEV; |
| 4056 | goto out_ieee80211_free_hw; |
| 4057 | } |
| 4058 | |
| 4059 | pci_set_master(pdev); |
| 4060 | |
Yang Hongyang | 284901a | 2009-04-06 19:01:15 -0700 | [diff] [blame] | 4061 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4062 | if (!err) |
Yang Hongyang | 284901a | 2009-04-06 19:01:15 -0700 | [diff] [blame] | 4063 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4064 | if (err) { |
Tomas Winkler | 978785a | 2008-12-19 10:37:31 +0800 | [diff] [blame] | 4065 | IWL_WARN(priv, "No suitable DMA available.\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4066 | goto out_pci_disable_device; |
| 4067 | } |
| 4068 | |
| 4069 | pci_set_drvdata(pdev, priv); |
| 4070 | err = pci_request_regions(pdev, DRV_NAME); |
| 4071 | if (err) |
| 4072 | goto out_pci_disable_device; |
Cahill, Ben M | 6440adb | 2007-11-29 11:09:55 +0800 | [diff] [blame] | 4073 | |
Kolekar, Abhijeet | cee53dd | 2008-11-12 13:14:04 -0800 | [diff] [blame] | 4074 | /*********************** |
| 4075 | * 3. Read REV Register |
| 4076 | * ********************/ |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4077 | priv->hw_base = pci_iomap(pdev, 0, 0); |
| 4078 | if (!priv->hw_base) { |
| 4079 | err = -ENODEV; |
| 4080 | goto out_pci_release_regions; |
| 4081 | } |
| 4082 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 4083 | IWL_DEBUG_INFO(priv, "pci_resource_len = 0x%08llx\n", |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4084 | (unsigned long long) pci_resource_len(pdev, 0)); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 4085 | IWL_DEBUG_INFO(priv, "pci_resource_base = %p\n", priv->hw_base); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4086 | |
Kolekar, Abhijeet | cee53dd | 2008-11-12 13:14:04 -0800 | [diff] [blame] | 4087 | /* We disable the RETRY_TIMEOUT register (0x41) to keep |
| 4088 | * PCI Tx retries from interfering with C3 CPU state */ |
| 4089 | pci_write_config_byte(pdev, 0x41, 0x00); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4090 | |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 4091 | /* this spin lock will be used in apm_ops.init and EEPROM access |
| 4092 | * we should init now |
| 4093 | */ |
| 4094 | spin_lock_init(&priv->reg_lock); |
| 4095 | |
Kolekar, Abhijeet | 90a30a0 | 2008-12-19 10:37:40 +0800 | [diff] [blame] | 4096 | /* amp init */ |
| 4097 | err = priv->cfg->ops->lib->apm_ops.init(priv); |
Tomas Winkler | 3ac7f14 | 2008-07-21 02:40:14 +0300 | [diff] [blame] | 4098 | if (err < 0) { |
David S. Miller | d5df2a1 | 2009-03-10 05:04:16 -0700 | [diff] [blame] | 4099 | IWL_DEBUG_INFO(priv, "Failed to init the card\n"); |
Kolekar, Abhijeet | 90a30a0 | 2008-12-19 10:37:40 +0800 | [diff] [blame] | 4100 | goto out_iounmap; |
Tomas Winkler | 3ac7f14 | 2008-07-21 02:40:14 +0300 | [diff] [blame] | 4101 | } |
Kolekar, Abhijeet | cee53dd | 2008-11-12 13:14:04 -0800 | [diff] [blame] | 4102 | |
| 4103 | /*********************** |
| 4104 | * 4. Read EEPROM |
| 4105 | * ********************/ |
Kolekar, Abhijeet | 90a30a0 | 2008-12-19 10:37:40 +0800 | [diff] [blame] | 4106 | |
Zhu Yi | 5a66926 | 2008-01-14 17:46:18 -0800 | [diff] [blame] | 4107 | /* Read the EEPROM */ |
Samuel Ortiz | e614891 | 2009-01-23 13:45:15 -0800 | [diff] [blame] | 4108 | err = iwl_eeprom_init(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4109 | if (err) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 4110 | IWL_ERR(priv, "Unable to init EEPROM\n"); |
Reinette Chatre | c8f1613 | 2009-02-27 16:21:22 -0800 | [diff] [blame] | 4111 | goto out_iounmap; |
Zhu Yi | 5a66926 | 2008-01-14 17:46:18 -0800 | [diff] [blame] | 4112 | } |
| 4113 | /* MAC Address location in EEPROM same for 3945/4965 */ |
Samuel Ortiz | e614891 | 2009-01-23 13:45:15 -0800 | [diff] [blame] | 4114 | eeprom = (struct iwl3945_eeprom *)priv->eeprom; |
| 4115 | memcpy(priv->mac_addr, eeprom->mac_address, ETH_ALEN); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 4116 | IWL_DEBUG_INFO(priv, "MAC address: %pM\n", priv->mac_addr); |
Zhu Yi | 5a66926 | 2008-01-14 17:46:18 -0800 | [diff] [blame] | 4117 | SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr); |
| 4118 | |
Kolekar, Abhijeet | cee53dd | 2008-11-12 13:14:04 -0800 | [diff] [blame] | 4119 | /*********************** |
| 4120 | * 5. Setup HW Constants |
| 4121 | * ********************/ |
| 4122 | /* Device-specific setup */ |
Abhijeet Kolekar | 3832ec9 | 2008-12-19 10:37:26 +0800 | [diff] [blame] | 4123 | if (iwl3945_hw_set_hw_params(priv)) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 4124 | IWL_ERR(priv, "failed to set hw settings\n"); |
Reinette Chatre | c8f1613 | 2009-02-27 16:21:22 -0800 | [diff] [blame] | 4125 | goto out_eeprom_free; |
Kolekar, Abhijeet | cee53dd | 2008-11-12 13:14:04 -0800 | [diff] [blame] | 4126 | } |
| 4127 | |
| 4128 | /*********************** |
| 4129 | * 6. Setup priv |
| 4130 | * ********************/ |
Kolekar, Abhijeet | cee53dd | 2008-11-12 13:14:04 -0800 | [diff] [blame] | 4131 | |
Kolekar, Abhijeet | 90a30a0 | 2008-12-19 10:37:40 +0800 | [diff] [blame] | 4132 | err = iwl3945_init_drv(priv); |
Reinette Chatre | 849e0dc | 2008-01-23 10:15:18 -0800 | [diff] [blame] | 4133 | if (err) { |
Kolekar, Abhijeet | 90a30a0 | 2008-12-19 10:37:40 +0800 | [diff] [blame] | 4134 | IWL_ERR(priv, "initializing driver failed\n"); |
Reinette Chatre | c8f1613 | 2009-02-27 16:21:22 -0800 | [diff] [blame] | 4135 | goto out_unset_hw_params; |
Reinette Chatre | 849e0dc | 2008-01-23 10:15:18 -0800 | [diff] [blame] | 4136 | } |
Reinette Chatre | 849e0dc | 2008-01-23 10:15:18 -0800 | [diff] [blame] | 4137 | |
Tomas Winkler | 978785a | 2008-12-19 10:37:31 +0800 | [diff] [blame] | 4138 | IWL_INFO(priv, "Detected Intel Wireless WiFi Link %s\n", |
| 4139 | priv->cfg->name); |
Kolekar, Abhijeet | cee53dd | 2008-11-12 13:14:04 -0800 | [diff] [blame] | 4140 | |
Kolekar, Abhijeet | cee53dd | 2008-11-12 13:14:04 -0800 | [diff] [blame] | 4141 | /*********************** |
Abhijeet Kolekar | 09f9bf7 | 2009-04-20 14:37:03 -0700 | [diff] [blame] | 4142 | * 7. Setup Services |
Kolekar, Abhijeet | cee53dd | 2008-11-12 13:14:04 -0800 | [diff] [blame] | 4143 | * ********************/ |
| 4144 | |
| 4145 | spin_lock_irqsave(&priv->lock, flags); |
Abhijeet Kolekar | ed3b932 | 2009-02-18 15:54:30 -0800 | [diff] [blame] | 4146 | iwl_disable_interrupts(priv); |
Kolekar, Abhijeet | cee53dd | 2008-11-12 13:14:04 -0800 | [diff] [blame] | 4147 | spin_unlock_irqrestore(&priv->lock, flags); |
| 4148 | |
Helmut Schaa | 2663516 | 2009-01-15 09:38:44 +0100 | [diff] [blame] | 4149 | pci_enable_msi(priv->pci_dev); |
| 4150 | |
Mohamed Abbas | ef850d7 | 2009-05-22 11:01:50 -0700 | [diff] [blame] | 4151 | err = request_irq(priv->pci_dev->irq, priv->cfg->ops->lib->isr, |
| 4152 | IRQF_SHARED, DRV_NAME, priv); |
Helmut Schaa | 2663516 | 2009-01-15 09:38:44 +0100 | [diff] [blame] | 4153 | if (err) { |
| 4154 | IWL_ERR(priv, "Error allocating IRQ %d\n", priv->pci_dev->irq); |
| 4155 | goto out_disable_msi; |
| 4156 | } |
| 4157 | |
Kolekar, Abhijeet | cee53dd | 2008-11-12 13:14:04 -0800 | [diff] [blame] | 4158 | err = sysfs_create_group(&pdev->dev.kobj, &iwl3945_attribute_group); |
| 4159 | if (err) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 4160 | IWL_ERR(priv, "failed to create sysfs device attributes\n"); |
Kolekar, Abhijeet | 90a30a0 | 2008-12-19 10:37:40 +0800 | [diff] [blame] | 4161 | goto out_release_irq; |
Kolekar, Abhijeet | cee53dd | 2008-11-12 13:14:04 -0800 | [diff] [blame] | 4162 | } |
| 4163 | |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 4164 | iwl_set_rxon_channel(priv, |
| 4165 | &priv->bands[IEEE80211_BAND_2GHZ].channels[5]); |
Kolekar, Abhijeet | cee53dd | 2008-11-12 13:14:04 -0800 | [diff] [blame] | 4166 | iwl3945_setup_deferred_work(priv); |
| 4167 | iwl3945_setup_rx_handlers(priv); |
| 4168 | |
Kolekar, Abhijeet | cee53dd | 2008-11-12 13:14:04 -0800 | [diff] [blame] | 4169 | /********************************* |
Abhijeet Kolekar | 09f9bf7 | 2009-04-20 14:37:03 -0700 | [diff] [blame] | 4170 | * 8. Setup and Register mac80211 |
Kolekar, Abhijeet | cee53dd | 2008-11-12 13:14:04 -0800 | [diff] [blame] | 4171 | * *******************************/ |
| 4172 | |
Abhijeet Kolekar | 2a4ddaa | 2009-02-27 16:21:23 -0800 | [diff] [blame] | 4173 | iwl_enable_interrupts(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4174 | |
Abhijeet Kolekar | 2a4ddaa | 2009-02-27 16:21:23 -0800 | [diff] [blame] | 4175 | err = iwl3945_setup_mac(priv); |
| 4176 | if (err) |
| 4177 | goto out_remove_sysfs; |
Kolekar, Abhijeet | cee53dd | 2008-11-12 13:14:04 -0800 | [diff] [blame] | 4178 | |
Abhijeet Kolekar | a75fbe8 | 2009-04-20 14:36:58 -0700 | [diff] [blame] | 4179 | err = iwl_dbgfs_register(priv, DRV_NAME); |
| 4180 | if (err) |
| 4181 | IWL_ERR(priv, "failed to create debugfs files. Ignoring error: %d\n", err); |
| 4182 | |
Helmut Schaa | 2663516 | 2009-01-15 09:38:44 +0100 | [diff] [blame] | 4183 | /* Start monitoring the killswitch */ |
| 4184 | queue_delayed_work(priv->workqueue, &priv->rfkill_poll, |
| 4185 | 2 * HZ); |
| 4186 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4187 | return 0; |
| 4188 | |
Kolekar, Abhijeet | cee53dd | 2008-11-12 13:14:04 -0800 | [diff] [blame] | 4189 | out_remove_sysfs: |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4190 | destroy_workqueue(priv->workqueue); |
| 4191 | priv->workqueue = NULL; |
Reinette Chatre | c8f1613 | 2009-02-27 16:21:22 -0800 | [diff] [blame] | 4192 | sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group); |
| 4193 | out_release_irq: |
| 4194 | free_irq(priv->pci_dev->irq, priv); |
Helmut Schaa | 2663516 | 2009-01-15 09:38:44 +0100 | [diff] [blame] | 4195 | out_disable_msi: |
| 4196 | pci_disable_msi(priv->pci_dev); |
Reinette Chatre | c8f1613 | 2009-02-27 16:21:22 -0800 | [diff] [blame] | 4197 | iwlcore_free_geos(priv); |
| 4198 | iwl_free_channel_map(priv); |
| 4199 | out_unset_hw_params: |
| 4200 | iwl3945_unset_hw_params(priv); |
| 4201 | out_eeprom_free: |
| 4202 | iwl_eeprom_free(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4203 | out_iounmap: |
| 4204 | pci_iounmap(pdev, priv->hw_base); |
| 4205 | out_pci_release_regions: |
| 4206 | pci_release_regions(pdev); |
| 4207 | out_pci_disable_device: |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4208 | pci_set_drvdata(pdev, NULL); |
Reinette Chatre | 623d563 | 2009-03-03 11:37:04 -0800 | [diff] [blame] | 4209 | pci_disable_device(pdev); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4210 | out_ieee80211_free_hw: |
| 4211 | ieee80211_free_hw(priv->hw); |
| 4212 | out: |
| 4213 | return err; |
| 4214 | } |
| 4215 | |
Reinette Chatre | c83dbf6 | 2008-03-21 13:53:41 -0700 | [diff] [blame] | 4216 | static void __devexit iwl3945_pci_remove(struct pci_dev *pdev) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4217 | { |
Abhijeet Kolekar | 4a8a432 | 2008-12-19 10:37:28 +0800 | [diff] [blame] | 4218 | struct iwl_priv *priv = pci_get_drvdata(pdev); |
Mohamed Abbas | 0359fac | 2008-03-28 16:21:08 -0700 | [diff] [blame] | 4219 | unsigned long flags; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4220 | |
| 4221 | if (!priv) |
| 4222 | return; |
| 4223 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 4224 | IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n"); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4225 | |
Abhijeet Kolekar | a75fbe8 | 2009-04-20 14:36:58 -0700 | [diff] [blame] | 4226 | iwl_dbgfs_unregister(priv); |
| 4227 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4228 | set_bit(STATUS_EXIT_PENDING, &priv->status); |
Zhu Yi | b24d22b | 2007-12-19 13:59:52 +0800 | [diff] [blame] | 4229 | |
Kolekar, Abhijeet | d552bfb | 2008-12-19 10:37:41 +0800 | [diff] [blame] | 4230 | if (priv->mac80211_registered) { |
| 4231 | ieee80211_unregister_hw(priv->hw); |
| 4232 | priv->mac80211_registered = 0; |
| 4233 | } else { |
| 4234 | iwl3945_down(priv); |
| 4235 | } |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4236 | |
Mohamed Abbas | 0359fac | 2008-03-28 16:21:08 -0700 | [diff] [blame] | 4237 | /* make sure we flush any pending irq or |
| 4238 | * tasklet for the driver |
| 4239 | */ |
| 4240 | spin_lock_irqsave(&priv->lock, flags); |
Abhijeet Kolekar | ed3b932 | 2009-02-18 15:54:30 -0800 | [diff] [blame] | 4241 | iwl_disable_interrupts(priv); |
Mohamed Abbas | 0359fac | 2008-03-28 16:21:08 -0700 | [diff] [blame] | 4242 | spin_unlock_irqrestore(&priv->lock, flags); |
| 4243 | |
| 4244 | iwl_synchronize_irq(priv); |
| 4245 | |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 4246 | sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4247 | |
Reinette Chatre | 71d449b | 2009-04-20 14:37:01 -0700 | [diff] [blame] | 4248 | cancel_delayed_work_sync(&priv->rfkill_poll); |
Helmut Schaa | 2663516 | 2009-01-15 09:38:44 +0100 | [diff] [blame] | 4249 | |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 4250 | iwl3945_dealloc_ucode_pci(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4251 | |
| 4252 | if (priv->rxq.bd) |
Reinette Chatre | df833b1 | 2009-04-21 10:55:48 -0700 | [diff] [blame] | 4253 | iwl3945_rx_queue_free(priv, &priv->rxq); |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 4254 | iwl3945_hw_txq_ctx_free(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4255 | |
Abhijeet Kolekar | 3832ec9 | 2008-12-19 10:37:26 +0800 | [diff] [blame] | 4256 | iwl3945_unset_hw_params(priv); |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 4257 | iwl_clear_stations_table(priv); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4258 | |
Mohamed Abbas | 6ef89d0 | 2007-10-25 17:15:47 +0800 | [diff] [blame] | 4259 | /*netif_stop_queue(dev); */ |
| 4260 | flush_workqueue(priv->workqueue); |
| 4261 | |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 4262 | /* ieee80211_unregister_hw calls iwl3945_mac_stop, which flushes |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4263 | * priv->workqueue... so we can't take down the workqueue |
| 4264 | * until now... */ |
| 4265 | destroy_workqueue(priv->workqueue); |
| 4266 | priv->workqueue = NULL; |
| 4267 | |
Helmut Schaa | 2663516 | 2009-01-15 09:38:44 +0100 | [diff] [blame] | 4268 | free_irq(pdev->irq, priv); |
| 4269 | pci_disable_msi(pdev); |
| 4270 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4271 | pci_iounmap(pdev, priv->hw_base); |
| 4272 | pci_release_regions(pdev); |
| 4273 | pci_disable_device(pdev); |
| 4274 | pci_set_drvdata(pdev, NULL); |
| 4275 | |
Samuel Ortiz | e614891 | 2009-01-23 13:45:15 -0800 | [diff] [blame] | 4276 | iwl_free_channel_map(priv); |
Samuel Ortiz | 534166d | 2009-01-23 13:45:16 -0800 | [diff] [blame] | 4277 | iwlcore_free_geos(priv); |
Winkler, Tomas | 805cee5 | 2009-01-19 15:30:28 -0800 | [diff] [blame] | 4278 | kfree(priv->scan); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4279 | if (priv->ibss_beacon) |
| 4280 | dev_kfree_skb(priv->ibss_beacon); |
| 4281 | |
| 4282 | ieee80211_free_hw(priv->hw); |
| 4283 | } |
| 4284 | |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4285 | |
| 4286 | /***************************************************************************** |
| 4287 | * |
| 4288 | * driver and module entry point |
| 4289 | * |
| 4290 | *****************************************************************************/ |
| 4291 | |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 4292 | static struct pci_driver iwl3945_driver = { |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4293 | .name = DRV_NAME, |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 4294 | .id_table = iwl3945_hw_card_ids, |
| 4295 | .probe = iwl3945_pci_probe, |
| 4296 | .remove = __devexit_p(iwl3945_pci_remove), |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4297 | #ifdef CONFIG_PM |
Wey-Yi Guy | 6da3a13 | 2009-03-26 10:14:08 -0700 | [diff] [blame] | 4298 | .suspend = iwl_pci_suspend, |
| 4299 | .resume = iwl_pci_resume, |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4300 | #endif |
| 4301 | }; |
| 4302 | |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 4303 | static int __init iwl3945_init(void) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4304 | { |
| 4305 | |
| 4306 | int ret; |
| 4307 | printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n"); |
| 4308 | printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n"); |
Reinette Chatre | 897e1cf | 2008-03-28 16:21:09 -0700 | [diff] [blame] | 4309 | |
| 4310 | ret = iwl3945_rate_control_register(); |
| 4311 | if (ret) { |
Samuel Ortiz | a3139c5 | 2008-12-19 10:37:09 +0800 | [diff] [blame] | 4312 | printk(KERN_ERR DRV_NAME |
| 4313 | "Unable to register rate control algorithm: %d\n", ret); |
Reinette Chatre | 897e1cf | 2008-03-28 16:21:09 -0700 | [diff] [blame] | 4314 | return ret; |
| 4315 | } |
| 4316 | |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 4317 | ret = pci_register_driver(&iwl3945_driver); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4318 | if (ret) { |
Samuel Ortiz | a3139c5 | 2008-12-19 10:37:09 +0800 | [diff] [blame] | 4319 | printk(KERN_ERR DRV_NAME "Unable to initialize PCI module\n"); |
Reinette Chatre | 897e1cf | 2008-03-28 16:21:09 -0700 | [diff] [blame] | 4320 | goto error_register; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4321 | } |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4322 | |
| 4323 | return ret; |
Reinette Chatre | 897e1cf | 2008-03-28 16:21:09 -0700 | [diff] [blame] | 4324 | |
Reinette Chatre | 897e1cf | 2008-03-28 16:21:09 -0700 | [diff] [blame] | 4325 | error_register: |
| 4326 | iwl3945_rate_control_unregister(); |
| 4327 | return ret; |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4328 | } |
| 4329 | |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 4330 | static void __exit iwl3945_exit(void) |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4331 | { |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 4332 | pci_unregister_driver(&iwl3945_driver); |
Reinette Chatre | 897e1cf | 2008-03-28 16:21:09 -0700 | [diff] [blame] | 4333 | iwl3945_rate_control_unregister(); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4334 | } |
| 4335 | |
Reinette Chatre | a0987a8 | 2008-12-02 12:14:06 -0800 | [diff] [blame] | 4336 | MODULE_FIRMWARE(IWL3945_MODULE_FIRMWARE(IWL3945_UCODE_API_MAX)); |
Zhu Yi | 25cb6ca | 2008-09-11 11:45:22 +0800 | [diff] [blame] | 4337 | |
Kolekar, Abhijeet | df878d8 | 2008-12-19 10:37:35 +0800 | [diff] [blame] | 4338 | module_param_named(antenna, iwl3945_mod_params.antenna, int, 0444); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4339 | MODULE_PARM_DESC(antenna, "select antenna (1=Main, 2=Aux, default 0 [both])"); |
Samuel Ortiz | 9c74d9f | 2009-01-08 10:19:59 -0800 | [diff] [blame] | 4340 | module_param_named(swcrypto, iwl3945_mod_params.sw_crypto, int, 0444); |
| 4341 | MODULE_PARM_DESC(swcrypto, |
| 4342 | "using software crypto (default 1 [software])\n"); |
Kolekar, Abhijeet | df878d8 | 2008-12-19 10:37:35 +0800 | [diff] [blame] | 4343 | module_param_named(debug, iwl3945_mod_params.debug, uint, 0444); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4344 | MODULE_PARM_DESC(debug, "debug output mask"); |
Kolekar, Abhijeet | df878d8 | 2008-12-19 10:37:35 +0800 | [diff] [blame] | 4345 | module_param_named(disable_hw_scan, iwl3945_mod_params.disable_hw_scan, int, 0444); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4346 | MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 0)"); |
| 4347 | |
Kolekar, Abhijeet | df878d8 | 2008-12-19 10:37:35 +0800 | [diff] [blame] | 4348 | module_param_named(queues_num, iwl3945_mod_params.num_of_queues, int, 0444); |
Zhu Yi | b481de9 | 2007-09-25 17:54:57 -0700 | [diff] [blame] | 4349 | MODULE_PARM_DESC(queues_num, "number of hw queues."); |
| 4350 | |
Samuel Ortiz | af48d04 | 2009-01-23 13:45:19 -0800 | [diff] [blame] | 4351 | module_param_named(fw_restart3945, iwl3945_mod_params.restart_fw, int, 0444); |
| 4352 | MODULE_PARM_DESC(fw_restart3945, "restart firmware in case of error"); |
| 4353 | |
Christoph Hellwig | bb8c093 | 2008-01-27 16:41:47 -0800 | [diff] [blame] | 4354 | module_exit(iwl3945_exit); |
| 4355 | module_init(iwl3945_init); |