Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 3 | * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [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: |
| 25 | * Intel Linux Wireless <ilw@linux.intel.com> |
| 26 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| 27 | * |
| 28 | *****************************************************************************/ |
| 29 | |
| 30 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| 31 | |
| 32 | #include <linux/kernel.h> |
| 33 | #include <linux/module.h> |
| 34 | #include <linux/init.h> |
| 35 | #include <linux/pci.h> |
| 36 | #include <linux/pci-aspm.h> |
| 37 | #include <linux/slab.h> |
| 38 | #include <linux/dma-mapping.h> |
| 39 | #include <linux/delay.h> |
| 40 | #include <linux/sched.h> |
| 41 | #include <linux/skbuff.h> |
| 42 | #include <linux/netdevice.h> |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 43 | #include <linux/firmware.h> |
| 44 | #include <linux/etherdevice.h> |
| 45 | #include <linux/if_arp.h> |
| 46 | |
| 47 | #include <net/ieee80211_radiotap.h> |
| 48 | #include <net/mac80211.h> |
| 49 | |
| 50 | #include <asm/div64.h> |
| 51 | |
| 52 | #define DRV_NAME "iwl3945" |
| 53 | |
Stanislaw Gruszka | d4459a9 | 2011-08-31 10:59:02 +0200 | [diff] [blame] | 54 | #include "commands.h" |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 55 | #include "iwl-sta.h" |
Stanislaw Gruszka | 6bbb137 | 2011-08-30 14:12:12 +0200 | [diff] [blame] | 56 | #include "3945.h" |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 57 | #include "iwl-core.h" |
| 58 | #include "iwl-helpers.h" |
| 59 | #include "iwl-dev.h" |
| 60 | #include "iwl-spectrum.h" |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 61 | |
| 62 | /* |
| 63 | * module name, copyright, version, etc. |
| 64 | */ |
| 65 | |
| 66 | #define DRV_DESCRIPTION \ |
| 67 | "Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux" |
| 68 | |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 69 | #ifdef CONFIG_IWLEGACY_DEBUG |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 70 | #define VD "d" |
| 71 | #else |
| 72 | #define VD |
| 73 | #endif |
| 74 | |
| 75 | /* |
| 76 | * add "s" to indicate spectrum measurement included. |
| 77 | * we add it here to be consistent with previous releases in which |
| 78 | * this was configurable. |
| 79 | */ |
| 80 | #define DRV_VERSION IWLWIFI_VERSION VD "s" |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 81 | #define DRV_COPYRIGHT "Copyright(c) 2003-2011 Intel Corporation" |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 82 | #define DRV_AUTHOR "<ilw@linux.intel.com>" |
| 83 | |
| 84 | MODULE_DESCRIPTION(DRV_DESCRIPTION); |
| 85 | MODULE_VERSION(DRV_VERSION); |
| 86 | MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); |
| 87 | MODULE_LICENSE("GPL"); |
| 88 | |
| 89 | /* module parameters */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 90 | struct il_mod_params il3945_mod_params = { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 91 | .sw_crypto = 1, |
| 92 | .restart_fw = 1, |
Stanislaw Gruszka | 0263aa4 | 2011-03-29 11:24:21 +0200 | [diff] [blame] | 93 | .disable_hw_scan = 1, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 94 | /* the rest are 0 by default */ |
| 95 | }; |
| 96 | |
| 97 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 98 | * il3945_get_antenna_flags - Get antenna flags for RXON command |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 99 | * @il: eeprom and antenna fields are used to determine antenna flags |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 100 | * |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 101 | * il->eeprom39 is used to determine if antenna AUX/MAIN are reversed |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 102 | * il3945_mod_params.antenna specifies the antenna diversity mode: |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 103 | * |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 104 | * IL_ANTENNA_DIVERSITY - NIC selects best antenna by itself |
| 105 | * IL_ANTENNA_MAIN - Force MAIN antenna |
| 106 | * IL_ANTENNA_AUX - Force AUX antenna |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 107 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 108 | __le32 il3945_get_antenna_flags(const struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 109 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 110 | struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 111 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 112 | switch (il3945_mod_params.antenna) { |
| 113 | case IL_ANTENNA_DIVERSITY: |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 114 | return 0; |
| 115 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 116 | case IL_ANTENNA_MAIN: |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 117 | if (eeprom->antenna_switch_type) |
| 118 | return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_B_MSK; |
| 119 | return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_A_MSK; |
| 120 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 121 | case IL_ANTENNA_AUX: |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 122 | if (eeprom->antenna_switch_type) |
| 123 | return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_A_MSK; |
| 124 | return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_B_MSK; |
| 125 | } |
| 126 | |
| 127 | /* bad antenna selector value */ |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 128 | IL_ERR("Bad antenna selector value (0x%x)\n", |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 129 | il3945_mod_params.antenna); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 130 | |
| 131 | return 0; /* "diversity" is default if error */ |
| 132 | } |
| 133 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 134 | static int il3945_set_ccmp_dynamic_key_info(struct il_priv *il, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 135 | struct ieee80211_key_conf *keyconf, |
| 136 | u8 sta_id) |
| 137 | { |
| 138 | unsigned long flags; |
| 139 | __le16 key_flags = 0; |
| 140 | int ret; |
| 141 | |
| 142 | key_flags |= (STA_KEY_FLG_CCMP | STA_KEY_FLG_MAP_KEY_MSK); |
| 143 | key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); |
| 144 | |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 145 | if (sta_id == il->ctx.bcast_sta_id) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 146 | key_flags |= STA_KEY_MULTICAST_MSK; |
| 147 | |
| 148 | keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; |
| 149 | keyconf->hw_key_idx = keyconf->keyidx; |
| 150 | key_flags &= ~STA_KEY_FLG_INVALID; |
| 151 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 152 | spin_lock_irqsave(&il->sta_lock, flags); |
| 153 | il->stations[sta_id].keyinfo.cipher = keyconf->cipher; |
| 154 | il->stations[sta_id].keyinfo.keylen = keyconf->keylen; |
| 155 | memcpy(il->stations[sta_id].keyinfo.key, keyconf->key, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 156 | keyconf->keylen); |
| 157 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 158 | memcpy(il->stations[sta_id].sta.key.key, keyconf->key, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 159 | keyconf->keylen); |
| 160 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 161 | if ((il->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 162 | == STA_KEY_FLG_NO_ENC) |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 163 | il->stations[sta_id].sta.key.key_offset = |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 164 | il_get_free_ucode_key_idx(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 165 | /* else, we are overriding an existing key => no need to allocated room |
| 166 | * in uCode. */ |
| 167 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 168 | WARN(il->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 169 | "no space for a new key"); |
| 170 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 171 | il->stations[sta_id].sta.key.key_flags = key_flags; |
| 172 | il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; |
| 173 | il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 174 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 175 | D_INFO("hwcrypto: modify ucode station key info\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 176 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 177 | ret = il_send_add_sta(il, |
| 178 | &il->stations[sta_id].sta, CMD_ASYNC); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 179 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 180 | spin_unlock_irqrestore(&il->sta_lock, flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 181 | |
| 182 | return ret; |
| 183 | } |
| 184 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 185 | static int il3945_set_tkip_dynamic_key_info(struct il_priv *il, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 186 | struct ieee80211_key_conf *keyconf, |
| 187 | u8 sta_id) |
| 188 | { |
| 189 | return -EOPNOTSUPP; |
| 190 | } |
| 191 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 192 | static int il3945_set_wep_dynamic_key_info(struct il_priv *il, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 193 | struct ieee80211_key_conf *keyconf, |
| 194 | u8 sta_id) |
| 195 | { |
| 196 | return -EOPNOTSUPP; |
| 197 | } |
| 198 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 199 | static int il3945_clear_sta_key_info(struct il_priv *il, u8 sta_id) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 200 | { |
| 201 | unsigned long flags; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 202 | struct il_addsta_cmd sta_cmd; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 203 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 204 | spin_lock_irqsave(&il->sta_lock, flags); |
| 205 | memset(&il->stations[sta_id].keyinfo, 0, sizeof(struct il_hw_key)); |
| 206 | memset(&il->stations[sta_id].sta.key, 0, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 207 | sizeof(struct il4965_keyinfo)); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 208 | il->stations[sta_id].sta.key.key_flags = STA_KEY_FLG_NO_ENC; |
| 209 | il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; |
| 210 | il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; |
| 211 | memcpy(&sta_cmd, &il->stations[sta_id].sta, sizeof(struct il_addsta_cmd)); |
| 212 | spin_unlock_irqrestore(&il->sta_lock, flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 213 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 214 | D_INFO("hwcrypto: clear ucode station key info\n"); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 215 | return il_send_add_sta(il, &sta_cmd, CMD_SYNC); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 216 | } |
| 217 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 218 | static int il3945_set_dynamic_key(struct il_priv *il, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 219 | struct ieee80211_key_conf *keyconf, u8 sta_id) |
| 220 | { |
| 221 | int ret = 0; |
| 222 | |
| 223 | keyconf->hw_key_idx = HW_KEY_DYNAMIC; |
| 224 | |
| 225 | switch (keyconf->cipher) { |
| 226 | case WLAN_CIPHER_SUITE_CCMP: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 227 | ret = il3945_set_ccmp_dynamic_key_info(il, keyconf, sta_id); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 228 | break; |
| 229 | case WLAN_CIPHER_SUITE_TKIP: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 230 | ret = il3945_set_tkip_dynamic_key_info(il, keyconf, sta_id); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 231 | break; |
| 232 | case WLAN_CIPHER_SUITE_WEP40: |
| 233 | case WLAN_CIPHER_SUITE_WEP104: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 234 | ret = il3945_set_wep_dynamic_key_info(il, keyconf, sta_id); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 235 | break; |
| 236 | default: |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 237 | IL_ERR("Unknown alg: %s alg=%x\n", __func__, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 238 | keyconf->cipher); |
| 239 | ret = -EINVAL; |
| 240 | } |
| 241 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 242 | D_WEP("Set dynamic key: alg=%x len=%d idx=%d sta=%d ret=%d\n", |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 243 | keyconf->cipher, keyconf->keylen, keyconf->keyidx, |
| 244 | sta_id, ret); |
| 245 | |
| 246 | return ret; |
| 247 | } |
| 248 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 249 | static int il3945_remove_static_key(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 250 | { |
| 251 | int ret = -EOPNOTSUPP; |
| 252 | |
| 253 | return ret; |
| 254 | } |
| 255 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 256 | static int il3945_set_static_key(struct il_priv *il, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 257 | struct ieee80211_key_conf *key) |
| 258 | { |
| 259 | if (key->cipher == WLAN_CIPHER_SUITE_WEP40 || |
| 260 | key->cipher == WLAN_CIPHER_SUITE_WEP104) |
| 261 | return -EOPNOTSUPP; |
| 262 | |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 263 | IL_ERR("Static key invalid: cipher %x\n", key->cipher); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 264 | return -EINVAL; |
| 265 | } |
| 266 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 267 | static void il3945_clear_free_frames(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 268 | { |
| 269 | struct list_head *element; |
| 270 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 271 | D_INFO("%d frames on pre-allocated heap on clear.\n", |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 272 | il->frames_count); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 273 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 274 | while (!list_empty(&il->free_frames)) { |
| 275 | element = il->free_frames.next; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 276 | list_del(element); |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 277 | kfree(list_entry(element, struct il3945_frame, list)); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 278 | il->frames_count--; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 279 | } |
| 280 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 281 | if (il->frames_count) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 282 | IL_WARN("%d frames still in use. Did we lose one?\n", |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 283 | il->frames_count); |
| 284 | il->frames_count = 0; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 285 | } |
| 286 | } |
| 287 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 288 | static struct il3945_frame *il3945_get_free_frame(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 289 | { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 290 | struct il3945_frame *frame; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 291 | struct list_head *element; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 292 | if (list_empty(&il->free_frames)) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 293 | frame = kzalloc(sizeof(*frame), GFP_KERNEL); |
| 294 | if (!frame) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 295 | IL_ERR("Could not allocate frame!\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 296 | return NULL; |
| 297 | } |
| 298 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 299 | il->frames_count++; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 300 | return frame; |
| 301 | } |
| 302 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 303 | element = il->free_frames.next; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 304 | list_del(element); |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 305 | return list_entry(element, struct il3945_frame, list); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 306 | } |
| 307 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 308 | static void il3945_free_frame(struct il_priv *il, struct il3945_frame *frame) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 309 | { |
| 310 | memset(frame, 0, sizeof(*frame)); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 311 | list_add(&frame->list, &il->free_frames); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 312 | } |
| 313 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 314 | unsigned int il3945_fill_beacon_frame(struct il_priv *il, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 315 | struct ieee80211_hdr *hdr, |
| 316 | int left) |
| 317 | { |
| 318 | |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 319 | if (!il_is_associated(il) || !il->beacon_skb) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 320 | return 0; |
| 321 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 322 | if (il->beacon_skb->len > left) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 323 | return 0; |
| 324 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 325 | memcpy(hdr, il->beacon_skb->data, il->beacon_skb->len); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 326 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 327 | return il->beacon_skb->len; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 328 | } |
| 329 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 330 | static int il3945_send_beacon_cmd(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 331 | { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 332 | struct il3945_frame *frame; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 333 | unsigned int frame_size; |
| 334 | int rc; |
| 335 | u8 rate; |
| 336 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 337 | frame = il3945_get_free_frame(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 338 | |
| 339 | if (!frame) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 340 | IL_ERR("Could not obtain free frame buffer for beacon " |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 341 | "command.\n"); |
| 342 | return -ENOMEM; |
| 343 | } |
| 344 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 345 | rate = il_get_lowest_plcp(il, |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 346 | &il->ctx); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 347 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 348 | frame_size = il3945_hw_get_beacon_cmd(il, frame, rate); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 349 | |
Stanislaw Gruszka | 4d69c75 | 2011-08-30 15:26:35 +0200 | [diff] [blame] | 350 | rc = il_send_cmd_pdu(il, C_TX_BEACON, frame_size, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 351 | &frame->u.cmd[0]); |
| 352 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 353 | il3945_free_frame(il, frame); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 354 | |
| 355 | return rc; |
| 356 | } |
| 357 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 358 | static void il3945_unset_hw_params(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 359 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 360 | if (il->_3945.shared_virt) |
| 361 | dma_free_coherent(&il->pci_dev->dev, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 362 | sizeof(struct il3945_shared), |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 363 | il->_3945.shared_virt, |
| 364 | il->_3945.shared_phys); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 365 | } |
| 366 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 367 | static void il3945_build_tx_cmd_hwcrypto(struct il_priv *il, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 368 | struct ieee80211_tx_info *info, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 369 | struct il_device_cmd *cmd, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 370 | struct sk_buff *skb_frag, |
| 371 | int sta_id) |
| 372 | { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 373 | struct il3945_tx_cmd *tx_cmd = (struct il3945_tx_cmd *)cmd->cmd.payload; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 374 | struct il_hw_key *keyinfo = &il->stations[sta_id].keyinfo; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 375 | |
| 376 | tx_cmd->sec_ctl = 0; |
| 377 | |
| 378 | switch (keyinfo->cipher) { |
| 379 | case WLAN_CIPHER_SUITE_CCMP: |
| 380 | tx_cmd->sec_ctl = TX_CMD_SEC_CCM; |
| 381 | memcpy(tx_cmd->key, keyinfo->key, keyinfo->keylen); |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 382 | D_TX("tx_cmd with AES hwcrypto\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 383 | break; |
| 384 | |
| 385 | case WLAN_CIPHER_SUITE_TKIP: |
| 386 | break; |
| 387 | |
| 388 | case WLAN_CIPHER_SUITE_WEP104: |
| 389 | tx_cmd->sec_ctl |= TX_CMD_SEC_KEY128; |
| 390 | /* fall through */ |
| 391 | case WLAN_CIPHER_SUITE_WEP40: |
| 392 | tx_cmd->sec_ctl |= TX_CMD_SEC_WEP | |
| 393 | (info->control.hw_key->hw_key_idx & TX_CMD_SEC_MSK) << TX_CMD_SEC_SHIFT; |
| 394 | |
| 395 | memcpy(&tx_cmd->key[3], keyinfo->key, keyinfo->keylen); |
| 396 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 397 | D_TX("Configuring packet for WEP encryption " |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 398 | "with key %d\n", info->control.hw_key->hw_key_idx); |
| 399 | break; |
| 400 | |
| 401 | default: |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 402 | IL_ERR("Unknown encode cipher %x\n", keyinfo->cipher); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 403 | break; |
| 404 | } |
| 405 | } |
| 406 | |
| 407 | /* |
Stanislaw Gruszka | 4d69c75 | 2011-08-30 15:26:35 +0200 | [diff] [blame] | 408 | * handle build C_TX command notification. |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 409 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 410 | static void il3945_build_tx_cmd_basic(struct il_priv *il, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 411 | struct il_device_cmd *cmd, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 412 | struct ieee80211_tx_info *info, |
| 413 | struct ieee80211_hdr *hdr, u8 std_id) |
| 414 | { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 415 | struct il3945_tx_cmd *tx_cmd = (struct il3945_tx_cmd *)cmd->cmd.payload; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 416 | __le32 tx_flags = tx_cmd->tx_flags; |
| 417 | __le16 fc = hdr->frame_control; |
| 418 | |
| 419 | tx_cmd->stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; |
| 420 | if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) { |
| 421 | tx_flags |= TX_CMD_FLG_ACK_MSK; |
| 422 | if (ieee80211_is_mgmt(fc)) |
| 423 | tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; |
| 424 | if (ieee80211_is_probe_resp(fc) && |
| 425 | !(le16_to_cpu(hdr->seq_ctrl) & 0xf)) |
| 426 | tx_flags |= TX_CMD_FLG_TSF_MSK; |
| 427 | } else { |
| 428 | tx_flags &= (~TX_CMD_FLG_ACK_MSK); |
| 429 | tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; |
| 430 | } |
| 431 | |
| 432 | tx_cmd->sta_id = std_id; |
| 433 | if (ieee80211_has_morefrags(fc)) |
| 434 | tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK; |
| 435 | |
| 436 | if (ieee80211_is_data_qos(fc)) { |
| 437 | u8 *qc = ieee80211_get_qos_ctl(hdr); |
| 438 | tx_cmd->tid_tspec = qc[0] & 0xf; |
| 439 | tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK; |
| 440 | } else { |
| 441 | tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; |
| 442 | } |
| 443 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 444 | il_tx_cmd_protection(il, info, fc, &tx_flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 445 | |
| 446 | tx_flags &= ~(TX_CMD_FLG_ANT_SEL_MSK); |
| 447 | if (ieee80211_is_mgmt(fc)) { |
| 448 | if (ieee80211_is_assoc_req(fc) || ieee80211_is_reassoc_req(fc)) |
| 449 | tx_cmd->timeout.pm_frame_timeout = cpu_to_le16(3); |
| 450 | else |
| 451 | tx_cmd->timeout.pm_frame_timeout = cpu_to_le16(2); |
| 452 | } else { |
| 453 | tx_cmd->timeout.pm_frame_timeout = 0; |
| 454 | } |
| 455 | |
| 456 | tx_cmd->driver_txop = 0; |
| 457 | tx_cmd->tx_flags = tx_flags; |
| 458 | tx_cmd->next_frame_len = 0; |
| 459 | } |
| 460 | |
| 461 | /* |
Stanislaw Gruszka | 4d69c75 | 2011-08-30 15:26:35 +0200 | [diff] [blame] | 462 | * start C_TX command process |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 463 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 464 | static int il3945_tx_skb(struct il_priv *il, struct sk_buff *skb) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 465 | { |
| 466 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; |
| 467 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 468 | struct il3945_tx_cmd *tx_cmd; |
| 469 | struct il_tx_queue *txq = NULL; |
| 470 | struct il_queue *q = NULL; |
| 471 | struct il_device_cmd *out_cmd; |
| 472 | struct il_cmd_meta *out_meta; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 473 | dma_addr_t phys_addr; |
| 474 | dma_addr_t txcmd_phys; |
| 475 | int txq_id = skb_get_queue_mapping(skb); |
| 476 | u16 len, idx, hdr_len; |
| 477 | u8 id; |
| 478 | u8 unicast; |
| 479 | u8 sta_id; |
| 480 | u8 tid = 0; |
| 481 | __le16 fc; |
| 482 | u8 wait_write_ptr = 0; |
| 483 | unsigned long flags; |
| 484 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 485 | spin_lock_irqsave(&il->lock, flags); |
| 486 | if (il_is_rfkill(il)) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 487 | D_DROP("Dropping - RF KILL\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 488 | goto drop_unlock; |
| 489 | } |
| 490 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 491 | if ((ieee80211_get_tx_rate(il->hw, info)->hw_value & 0xFF) == IL_INVALID_RATE) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 492 | IL_ERR("ERROR: No TX rate available.\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 493 | goto drop_unlock; |
| 494 | } |
| 495 | |
| 496 | unicast = !is_multicast_ether_addr(hdr->addr1); |
| 497 | id = 0; |
| 498 | |
| 499 | fc = hdr->frame_control; |
| 500 | |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 501 | #ifdef CONFIG_IWLEGACY_DEBUG |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 502 | if (ieee80211_is_auth(fc)) |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 503 | D_TX("Sending AUTH frame\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 504 | else if (ieee80211_is_assoc_req(fc)) |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 505 | D_TX("Sending ASSOC frame\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 506 | else if (ieee80211_is_reassoc_req(fc)) |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 507 | D_TX("Sending REASSOC frame\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 508 | #endif |
| 509 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 510 | spin_unlock_irqrestore(&il->lock, flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 511 | |
| 512 | hdr_len = ieee80211_hdrlen(fc); |
| 513 | |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 514 | /* Find idx into station table for destination station */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 515 | sta_id = il_sta_id_or_broadcast( |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 516 | il, &il->ctx, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 517 | info->control.sta); |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 518 | if (sta_id == IL_INVALID_STATION) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 519 | D_DROP("Dropping - INVALID STATION: %pM\n", |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 520 | hdr->addr1); |
| 521 | goto drop; |
| 522 | } |
| 523 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 524 | D_RATE("station Id %d\n", sta_id); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 525 | |
| 526 | if (ieee80211_is_data_qos(fc)) { |
| 527 | u8 *qc = ieee80211_get_qos_ctl(hdr); |
| 528 | tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK; |
| 529 | if (unlikely(tid >= MAX_TID_COUNT)) |
| 530 | goto drop; |
| 531 | } |
| 532 | |
| 533 | /* Descriptor for chosen Tx queue */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 534 | txq = &il->txq[txq_id]; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 535 | q = &txq->q; |
| 536 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 537 | if ((il_queue_space(q) < q->high_mark)) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 538 | goto drop; |
| 539 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 540 | spin_lock_irqsave(&il->lock, flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 541 | |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 542 | idx = il_get_cmd_idx(q, q->write_ptr, 0); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 543 | |
| 544 | /* Set up driver data for this TFD */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 545 | memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct il_tx_info)); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 546 | txq->txb[q->write_ptr].skb = skb; |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 547 | txq->txb[q->write_ptr].ctx = &il->ctx; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 548 | |
| 549 | /* Init first empty entry in queue's array of Tx/cmd buffers */ |
| 550 | out_cmd = txq->cmd[idx]; |
| 551 | out_meta = &txq->meta[idx]; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 552 | tx_cmd = (struct il3945_tx_cmd *)out_cmd->cmd.payload; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 553 | memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr)); |
| 554 | memset(tx_cmd, 0, sizeof(*tx_cmd)); |
| 555 | |
| 556 | /* |
| 557 | * Set up the Tx-command (not MAC!) header. |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 558 | * Store the chosen Tx queue and TFD idx within the sequence field; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 559 | * after Tx, uCode's Tx response will return this value so driver can |
| 560 | * locate the frame within the tx queue and do post-tx processing. |
| 561 | */ |
Stanislaw Gruszka | 4d69c75 | 2011-08-30 15:26:35 +0200 | [diff] [blame] | 562 | out_cmd->hdr.cmd = C_TX; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 563 | out_cmd->hdr.sequence = cpu_to_le16((u16)(QUEUE_TO_SEQ(txq_id) | |
Stanislaw Gruszka | 2d09b06 | 2011-08-26 16:10:40 +0200 | [diff] [blame] | 564 | IDX_TO_SEQ(q->write_ptr))); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 565 | |
| 566 | /* Copy MAC header from skb into command buffer */ |
| 567 | memcpy(tx_cmd->hdr, hdr, hdr_len); |
| 568 | |
| 569 | |
| 570 | if (info->control.hw_key) |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 571 | il3945_build_tx_cmd_hwcrypto(il, info, out_cmd, skb, sta_id); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 572 | |
| 573 | /* TODO need this for burst mode later on */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 574 | il3945_build_tx_cmd_basic(il, out_cmd, info, hdr, sta_id); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 575 | |
| 576 | /* set is_hcca to 0; it probably will never be implemented */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 577 | il3945_hw_build_tx_cmd_rate(il, out_cmd, info, hdr, sta_id, 0); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 578 | |
| 579 | /* Total # bytes to be transmitted */ |
| 580 | len = (u16)skb->len; |
| 581 | tx_cmd->len = cpu_to_le16(len); |
| 582 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 583 | il_dbg_log_tx_data_frame(il, len, hdr); |
| 584 | il_update_stats(il, true, fc, len); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 585 | tx_cmd->tx_flags &= ~TX_CMD_FLG_ANT_A_MSK; |
| 586 | tx_cmd->tx_flags &= ~TX_CMD_FLG_ANT_B_MSK; |
| 587 | |
| 588 | if (!ieee80211_has_morefrags(hdr->frame_control)) { |
| 589 | txq->need_update = 1; |
| 590 | } else { |
| 591 | wait_write_ptr = 1; |
| 592 | txq->need_update = 0; |
| 593 | } |
| 594 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 595 | D_TX("sequence nr = 0X%x\n", |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 596 | le16_to_cpu(out_cmd->hdr.sequence)); |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 597 | D_TX("tx_flags = 0X%x\n", le32_to_cpu(tx_cmd->tx_flags)); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 598 | il_print_hex_dump(il, IL_DL_TX, tx_cmd, sizeof(*tx_cmd)); |
| 599 | il_print_hex_dump(il, IL_DL_TX, (u8 *)tx_cmd->hdr, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 600 | ieee80211_hdrlen(fc)); |
| 601 | |
| 602 | /* |
| 603 | * Use the first empty entry in this queue's command buffer array |
| 604 | * to contain the Tx command and MAC header concatenated together |
| 605 | * (payload data will be in another buffer). |
| 606 | * Size of this varies, due to varying MAC header length. |
| 607 | * If end is not dword aligned, we'll have 2 extra bytes at the end |
| 608 | * of the MAC header (device reads on dword boundaries). |
| 609 | * We'll tell device about this padding later. |
| 610 | */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 611 | len = sizeof(struct il3945_tx_cmd) + |
| 612 | sizeof(struct il_cmd_header) + hdr_len; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 613 | len = (len + 3) & ~3; |
| 614 | |
| 615 | /* Physical address of this Tx command's header (not MAC header!), |
| 616 | * within command buffer array. */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 617 | txcmd_phys = pci_map_single(il->pci_dev, &out_cmd->hdr, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 618 | len, PCI_DMA_TODEVICE); |
| 619 | /* we do not map meta data ... so we can safely access address to |
| 620 | * provide to unmap command*/ |
| 621 | dma_unmap_addr_set(out_meta, mapping, txcmd_phys); |
| 622 | dma_unmap_len_set(out_meta, len, len); |
| 623 | |
| 624 | /* Add buffer containing Tx command and MAC(!) header to TFD's |
| 625 | * first entry */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 626 | il->cfg->ops->lib->txq_attach_buf_to_tfd(il, txq, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 627 | txcmd_phys, len, 1, 0); |
| 628 | |
| 629 | |
| 630 | /* Set up TFD's 2nd entry to point directly to remainder of skb, |
| 631 | * if any (802.11 null frames have no payload). */ |
| 632 | len = skb->len - hdr_len; |
| 633 | if (len) { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 634 | phys_addr = pci_map_single(il->pci_dev, skb->data + hdr_len, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 635 | len, PCI_DMA_TODEVICE); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 636 | il->cfg->ops->lib->txq_attach_buf_to_tfd(il, txq, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 637 | phys_addr, len, |
| 638 | 0, U32_PAD(len)); |
| 639 | } |
| 640 | |
| 641 | |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 642 | /* Tell device the write idx *just past* this latest filled TFD */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 643 | q->write_ptr = il_queue_inc_wrap(q->write_ptr, q->n_bd); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 644 | il_txq_update_write_ptr(il, txq); |
| 645 | spin_unlock_irqrestore(&il->lock, flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 646 | |
Stanislaw Gruszka | 232913b | 2011-08-26 10:45:16 +0200 | [diff] [blame] | 647 | if (il_queue_space(q) < q->high_mark |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 648 | && il->mac80211_registered) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 649 | if (wait_write_ptr) { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 650 | spin_lock_irqsave(&il->lock, flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 651 | txq->need_update = 1; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 652 | il_txq_update_write_ptr(il, txq); |
| 653 | spin_unlock_irqrestore(&il->lock, flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 654 | } |
| 655 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 656 | il_stop_queue(il, txq); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 657 | } |
| 658 | |
| 659 | return 0; |
| 660 | |
| 661 | drop_unlock: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 662 | spin_unlock_irqrestore(&il->lock, flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 663 | drop: |
| 664 | return -1; |
| 665 | } |
| 666 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 667 | static int il3945_get_measurement(struct il_priv *il, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 668 | struct ieee80211_measurement_params *params, |
| 669 | u8 type) |
| 670 | { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 671 | struct il_spectrum_cmd spectrum; |
Stanislaw Gruszka | dcae1c6 | 2011-08-26 14:36:21 +0200 | [diff] [blame] | 672 | struct il_rx_pkt *pkt; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 673 | struct il_host_cmd cmd = { |
Stanislaw Gruszka | 4d69c75 | 2011-08-30 15:26:35 +0200 | [diff] [blame] | 674 | .id = C_SPECTRUM_MEASUREMENT, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 675 | .data = (void *)&spectrum, |
| 676 | .flags = CMD_WANT_SKB, |
| 677 | }; |
| 678 | u32 add_time = le64_to_cpu(params->start_time); |
| 679 | int rc; |
| 680 | int spectrum_resp_status; |
| 681 | int duration = le16_to_cpu(params->duration); |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 682 | struct il_rxon_context *ctx = &il->ctx; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 683 | |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 684 | if (il_is_associated(il)) |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 685 | add_time = il_usecs_to_beacons(il, |
| 686 | le64_to_cpu(params->start_time) - il->_3945.last_tsf, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 687 | le16_to_cpu(ctx->timing.beacon_interval)); |
| 688 | |
| 689 | memset(&spectrum, 0, sizeof(spectrum)); |
| 690 | |
| 691 | spectrum.channel_count = cpu_to_le16(1); |
| 692 | spectrum.flags = |
| 693 | RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK; |
| 694 | spectrum.filter_flags = MEASUREMENT_FILTER_FLAG; |
| 695 | cmd.len = sizeof(spectrum); |
| 696 | spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len)); |
| 697 | |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 698 | if (il_is_associated(il)) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 699 | spectrum.start_time = |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 700 | il_add_beacon_time(il, |
| 701 | il->_3945.last_beacon_time, add_time, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 702 | le16_to_cpu(ctx->timing.beacon_interval)); |
| 703 | else |
| 704 | spectrum.start_time = 0; |
| 705 | |
| 706 | spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT); |
| 707 | spectrum.channels[0].channel = params->channel; |
| 708 | spectrum.channels[0].type = type; |
| 709 | if (ctx->active.flags & RXON_FLG_BAND_24G_MSK) |
| 710 | spectrum.flags |= RXON_FLG_BAND_24G_MSK | |
| 711 | RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK; |
| 712 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 713 | rc = il_send_cmd_sync(il, &cmd); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 714 | if (rc) |
| 715 | return rc; |
| 716 | |
Stanislaw Gruszka | dcae1c6 | 2011-08-26 14:36:21 +0200 | [diff] [blame] | 717 | pkt = (struct il_rx_pkt *)cmd.reply_page; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 718 | if (pkt->hdr.flags & IL_CMD_FAILED_MSK) { |
Stanislaw Gruszka | 4d69c75 | 2011-08-30 15:26:35 +0200 | [diff] [blame] | 719 | IL_ERR("Bad return from N_RX_ON_ASSOC command\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 720 | rc = -EIO; |
| 721 | } |
| 722 | |
| 723 | spectrum_resp_status = le16_to_cpu(pkt->u.spectrum.status); |
| 724 | switch (spectrum_resp_status) { |
| 725 | case 0: /* Command will be handled */ |
| 726 | if (pkt->u.spectrum.id != 0xff) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 727 | D_INFO("Replaced existing measurement: %d\n", |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 728 | pkt->u.spectrum.id); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 729 | il->measurement_status &= ~MEASUREMENT_READY; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 730 | } |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 731 | il->measurement_status |= MEASUREMENT_ACTIVE; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 732 | rc = 0; |
| 733 | break; |
| 734 | |
| 735 | case 1: /* Command will not be handled */ |
| 736 | rc = -EAGAIN; |
| 737 | break; |
| 738 | } |
| 739 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 740 | il_free_pages(il, cmd.reply_page); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 741 | |
| 742 | return rc; |
| 743 | } |
| 744 | |
Stanislaw Gruszka | 6e9848b4 | 2011-08-30 15:45:31 +0200 | [diff] [blame] | 745 | static void il3945_hdl_alive(struct il_priv *il, |
Stanislaw Gruszka | b73bb5f | 2011-08-26 14:37:54 +0200 | [diff] [blame] | 746 | struct il_rx_buf *rxb) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 747 | { |
Stanislaw Gruszka | dcae1c6 | 2011-08-26 14:36:21 +0200 | [diff] [blame] | 748 | struct il_rx_pkt *pkt = rxb_addr(rxb); |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 749 | struct il_alive_resp *palive; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 750 | struct delayed_work *pwork; |
| 751 | |
| 752 | palive = &pkt->u.alive_frame; |
| 753 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 754 | D_INFO("Alive ucode status 0x%08X revision " |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 755 | "0x%01X 0x%01X\n", |
| 756 | palive->is_valid, palive->ver_type, |
| 757 | palive->ver_subtype); |
| 758 | |
| 759 | if (palive->ver_subtype == INITIALIZE_SUBTYPE) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 760 | D_INFO("Initialization Alive received.\n"); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 761 | memcpy(&il->card_alive_init, &pkt->u.alive_frame, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 762 | sizeof(struct il_alive_resp)); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 763 | pwork = &il->init_alive_start; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 764 | } else { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 765 | D_INFO("Runtime Alive received.\n"); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 766 | memcpy(&il->card_alive, &pkt->u.alive_frame, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 767 | sizeof(struct il_alive_resp)); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 768 | pwork = &il->alive_start; |
| 769 | il3945_disable_events(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 770 | } |
| 771 | |
| 772 | /* We delay the ALIVE response by 5ms to |
| 773 | * give the HW RF Kill time to activate... */ |
| 774 | if (palive->is_valid == UCODE_VALID_OK) |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 775 | queue_delayed_work(il->workqueue, pwork, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 776 | msecs_to_jiffies(5)); |
| 777 | else |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 778 | IL_WARN("uCode did not respond OK.\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 779 | } |
| 780 | |
Stanislaw Gruszka | 6e9848b4 | 2011-08-30 15:45:31 +0200 | [diff] [blame] | 781 | static void il3945_hdl_add_sta(struct il_priv *il, |
Stanislaw Gruszka | b73bb5f | 2011-08-26 14:37:54 +0200 | [diff] [blame] | 782 | struct il_rx_buf *rxb) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 783 | { |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 784 | #ifdef CONFIG_IWLEGACY_DEBUG |
Stanislaw Gruszka | dcae1c6 | 2011-08-26 14:36:21 +0200 | [diff] [blame] | 785 | struct il_rx_pkt *pkt = rxb_addr(rxb); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 786 | #endif |
| 787 | |
Stanislaw Gruszka | 4d69c75 | 2011-08-30 15:26:35 +0200 | [diff] [blame] | 788 | D_RX("Received C_ADD_STA: 0x%02X\n", pkt->u.status); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 789 | } |
| 790 | |
Stanislaw Gruszka | d2dfb33 | 2011-11-15 13:16:38 +0100 | [diff] [blame] | 791 | static void il3945_hdl_beacon(struct il_priv *il, |
Stanislaw Gruszka | b73bb5f | 2011-08-26 14:37:54 +0200 | [diff] [blame] | 792 | struct il_rx_buf *rxb) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 793 | { |
Stanislaw Gruszka | dcae1c6 | 2011-08-26 14:36:21 +0200 | [diff] [blame] | 794 | struct il_rx_pkt *pkt = rxb_addr(rxb); |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 795 | struct il3945_beacon_notif *beacon = &(pkt->u.beacon_status); |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 796 | #ifdef CONFIG_IWLEGACY_DEBUG |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 797 | u8 rate = beacon->beacon_notify_hdr.rate; |
| 798 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 799 | D_RX("beacon status %x retries %d iss %d " |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 800 | "tsf %d %d rate %d\n", |
| 801 | le32_to_cpu(beacon->beacon_notify_hdr.status) & TX_STATUS_MSK, |
| 802 | beacon->beacon_notify_hdr.failure_frame, |
| 803 | le32_to_cpu(beacon->ibss_mgr_status), |
| 804 | le32_to_cpu(beacon->high_tsf), |
| 805 | le32_to_cpu(beacon->low_tsf), rate); |
| 806 | #endif |
| 807 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 808 | il->ibss_manager = le32_to_cpu(beacon->ibss_mgr_status); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 809 | |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 810 | } |
| 811 | |
| 812 | /* Handle notification from uCode that card's power state is changing |
| 813 | * due to software, hardware, or critical temperature RFKILL */ |
Stanislaw Gruszka | d2dfb33 | 2011-11-15 13:16:38 +0100 | [diff] [blame] | 814 | static void il3945_hdl_card_state(struct il_priv *il, |
Stanislaw Gruszka | b73bb5f | 2011-08-26 14:37:54 +0200 | [diff] [blame] | 815 | struct il_rx_buf *rxb) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 816 | { |
Stanislaw Gruszka | dcae1c6 | 2011-08-26 14:36:21 +0200 | [diff] [blame] | 817 | struct il_rx_pkt *pkt = rxb_addr(rxb); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 818 | u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 819 | unsigned long status = il->status; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 820 | |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 821 | IL_WARN("Card state received: HW:%s SW:%s\n", |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 822 | (flags & HW_CARD_DISABLED) ? "Kill" : "On", |
| 823 | (flags & SW_CARD_DISABLED) ? "Kill" : "On"); |
| 824 | |
Stanislaw Gruszka | 841b2cc | 2011-08-24 15:14:03 +0200 | [diff] [blame] | 825 | _il_wr(il, CSR_UCODE_DRV_GP1_SET, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 826 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
| 827 | |
| 828 | if (flags & HW_CARD_DISABLED) |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 829 | set_bit(S_RF_KILL_HW, &il->status); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 830 | else |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 831 | clear_bit(S_RF_KILL_HW, &il->status); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 832 | |
| 833 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 834 | il_scan_cancel(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 835 | |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 836 | if ((test_bit(S_RF_KILL_HW, &status) != |
| 837 | test_bit(S_RF_KILL_HW, &il->status))) |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 838 | wiphy_rfkill_set_hw_state(il->hw->wiphy, |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 839 | test_bit(S_RF_KILL_HW, &il->status)); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 840 | else |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 841 | wake_up(&il->wait_command_queue); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 842 | } |
| 843 | |
| 844 | /** |
Stanislaw Gruszka | d0c7234 | 2011-08-30 15:39:42 +0200 | [diff] [blame] | 845 | * il3945_setup_handlers - Initialize Rx handler callbacks |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 846 | * |
| 847 | * Setup the RX handlers for each of the reply types sent from the uCode |
| 848 | * to the host. |
| 849 | * |
| 850 | * This function chains into the hardware specific files for them to setup |
| 851 | * any hardware specific handlers as well. |
| 852 | */ |
Stanislaw Gruszka | d0c7234 | 2011-08-30 15:39:42 +0200 | [diff] [blame] | 853 | static void il3945_setup_handlers(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 854 | { |
Stanislaw Gruszka | 6e9848b4 | 2011-08-30 15:45:31 +0200 | [diff] [blame] | 855 | il->handlers[N_ALIVE] = il3945_hdl_alive; |
| 856 | il->handlers[C_ADD_STA] = il3945_hdl_add_sta; |
| 857 | il->handlers[N_ERROR] = il_hdl_error; |
Stanislaw Gruszka | d2dfb33 | 2011-11-15 13:16:38 +0100 | [diff] [blame] | 858 | il->handlers[N_CHANNEL_SWITCH] = il_hdl_csa; |
Stanislaw Gruszka | d0c7234 | 2011-08-30 15:39:42 +0200 | [diff] [blame] | 859 | il->handlers[N_SPECTRUM_MEASUREMENT] = |
Stanislaw Gruszka | d2dfb33 | 2011-11-15 13:16:38 +0100 | [diff] [blame] | 860 | il_hdl_spectrum_measurement; |
| 861 | il->handlers[N_PM_SLEEP] = il_hdl_pm_sleep; |
Stanislaw Gruszka | d0c7234 | 2011-08-30 15:39:42 +0200 | [diff] [blame] | 862 | il->handlers[N_PM_DEBUG_STATS] = |
Stanislaw Gruszka | d2dfb33 | 2011-11-15 13:16:38 +0100 | [diff] [blame] | 863 | il_hdl_pm_debug_stats; |
| 864 | il->handlers[N_BEACON] = il3945_hdl_beacon; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 865 | |
| 866 | /* |
| 867 | * The same handler is used for both the REPLY to a discrete |
Stanislaw Gruszka | ebf0d90 | 2011-08-26 15:43:47 +0200 | [diff] [blame] | 868 | * stats request from the host as well as for the periodic |
| 869 | * stats notifications (after received beacons) from the uCode. |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 870 | */ |
Stanislaw Gruszka | d2dfb33 | 2011-11-15 13:16:38 +0100 | [diff] [blame] | 871 | il->handlers[C_STATS] = il3945_hdl_c_stats; |
| 872 | il->handlers[N_STATS] = il3945_hdl_stats; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 873 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 874 | il_setup_rx_scan_handlers(il); |
Stanislaw Gruszka | d2dfb33 | 2011-11-15 13:16:38 +0100 | [diff] [blame] | 875 | il->handlers[N_CARD_STATE] = il3945_hdl_card_state; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 876 | |
| 877 | /* Set up hardware specific Rx handlers */ |
Stanislaw Gruszka | d0c7234 | 2011-08-30 15:39:42 +0200 | [diff] [blame] | 878 | il3945_hw_handler_setup(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 879 | } |
| 880 | |
| 881 | /************************** RX-FUNCTIONS ****************************/ |
| 882 | /* |
| 883 | * Rx theory of operation |
| 884 | * |
| 885 | * The host allocates 32 DMA target addresses and passes the host address |
Stanislaw Gruszka | 3b98c7f | 2011-08-26 16:29:35 +0200 | [diff] [blame] | 886 | * to the firmware at register IL_RFDS_TBL_LOWER + N * RFD_SIZE where N is |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 887 | * 0 to 31 |
| 888 | * |
| 889 | * Rx Queue Indexes |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 890 | * The host/firmware share two idx registers for managing the Rx buffers. |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 891 | * |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 892 | * The READ idx maps to the first position that the firmware may be writing |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 893 | * to -- the driver can read up to (but not including) this position and get |
| 894 | * good data. |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 895 | * The READ idx is managed by the firmware once the card is enabled. |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 896 | * |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 897 | * The WRITE idx maps to the last position the driver has read from -- the |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 898 | * position preceding WRITE is the last slot the firmware can place a packet. |
| 899 | * |
| 900 | * The queue is empty (no good data) if WRITE = READ - 1, and is full if |
| 901 | * WRITE = READ. |
| 902 | * |
| 903 | * During initialization, the host sets up the READ queue position to the first |
Stanislaw Gruszka | 2d09b06 | 2011-08-26 16:10:40 +0200 | [diff] [blame] | 904 | * IDX position, and WRITE to the last (READ - 1 wrapped) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 905 | * |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 906 | * When the firmware places a packet in a buffer, it will advance the READ idx |
| 907 | * and fire the RX interrupt. The driver can then query the READ idx and |
| 908 | * process as many packets as possible, moving the WRITE idx forward as it |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 909 | * resets the Rx queue buffers with new memory. |
| 910 | * |
| 911 | * The management in the driver is as follows: |
| 912 | * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When |
| 913 | * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled |
| 914 | * to replenish the iwl->rxq->rx_free. |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 915 | * + In il3945_rx_replenish (scheduled) if 'processed' != 'read' then the |
Stanislaw Gruszka | 2d09b06 | 2011-08-26 16:10:40 +0200 | [diff] [blame] | 916 | * iwl->rxq is replenished and the READ IDX is updated (updating the |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 917 | * 'processed' and 'read' driver idxes as well) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 918 | * + A received packet is processed and handed to the kernel network stack, |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 919 | * detached from the iwl->rxq. The driver 'processed' idx is updated. |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 920 | * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free |
| 921 | * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ |
Stanislaw Gruszka | 2d09b06 | 2011-08-26 16:10:40 +0200 | [diff] [blame] | 922 | * IDX is not incremented and iwl->status(RX_STALLED) is set. If there |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 923 | * were enough free buffers and RX_STALLED is set it is cleared. |
| 924 | * |
| 925 | * |
| 926 | * Driver sequence: |
| 927 | * |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 928 | * il3945_rx_replenish() Replenishes rx_free list from rx_used, and calls |
| 929 | * il3945_rx_queue_restock |
| 930 | * il3945_rx_queue_restock() Moves available buffers from rx_free into Rx |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 931 | * queue, updates firmware pointers, and updates |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 932 | * the WRITE idx. If insufficient rx_free buffers |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 933 | * are available, schedules il3945_rx_replenish |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 934 | * |
| 935 | * -- enable interrupts -- |
Stanislaw Gruszka | b73bb5f | 2011-08-26 14:37:54 +0200 | [diff] [blame] | 936 | * ISR - il3945_rx() Detach il_rx_bufs from pool up to the |
Stanislaw Gruszka | 2d09b06 | 2011-08-26 16:10:40 +0200 | [diff] [blame] | 937 | * READ IDX, detaching the SKB from the pool. |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 938 | * Moves the packet buffer from queue to rx_used. |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 939 | * Calls il3945_rx_queue_restock to refill any empty |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 940 | * slots. |
| 941 | * ... |
| 942 | * |
| 943 | */ |
| 944 | |
| 945 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 946 | * il3945_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 947 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 948 | static inline __le32 il3945_dma_addr2rbd_ptr(struct il_priv *il, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 949 | dma_addr_t dma_addr) |
| 950 | { |
| 951 | return cpu_to_le32((u32)dma_addr); |
| 952 | } |
| 953 | |
| 954 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 955 | * il3945_rx_queue_restock - refill RX queue from pre-allocated pool |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 956 | * |
| 957 | * If there are slots in the RX queue that need to be restocked, |
| 958 | * and we have free pre-allocated buffers, fill the ranks as much |
| 959 | * as we can, pulling from rx_free. |
| 960 | * |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 961 | * This moves the 'write' idx forward to catch up with 'processed', and |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 962 | * also updates the memory address in the firmware to reference the new |
| 963 | * target buffer. |
| 964 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 965 | static void il3945_rx_queue_restock(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 966 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 967 | struct il_rx_queue *rxq = &il->rxq; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 968 | struct list_head *element; |
Stanislaw Gruszka | b73bb5f | 2011-08-26 14:37:54 +0200 | [diff] [blame] | 969 | struct il_rx_buf *rxb; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 970 | unsigned long flags; |
| 971 | int write; |
| 972 | |
| 973 | spin_lock_irqsave(&rxq->lock, flags); |
| 974 | write = rxq->write & ~0x7; |
Stanislaw Gruszka | 232913b | 2011-08-26 10:45:16 +0200 | [diff] [blame] | 975 | while (il_rx_queue_space(rxq) > 0 && rxq->free_count) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 976 | /* Get next free Rx buffer, remove from free list */ |
| 977 | element = rxq->rx_free.next; |
Stanislaw Gruszka | b73bb5f | 2011-08-26 14:37:54 +0200 | [diff] [blame] | 978 | rxb = list_entry(element, struct il_rx_buf, list); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 979 | list_del(element); |
| 980 | |
| 981 | /* Point to Rx buffer via next RBD in circular buffer */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 982 | rxq->bd[rxq->write] = il3945_dma_addr2rbd_ptr(il, rxb->page_dma); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 983 | rxq->queue[rxq->write] = rxb; |
| 984 | rxq->write = (rxq->write + 1) & RX_QUEUE_MASK; |
| 985 | rxq->free_count--; |
| 986 | } |
| 987 | spin_unlock_irqrestore(&rxq->lock, flags); |
| 988 | /* If the pre-allocated buffer pool is dropping low, schedule to |
| 989 | * refill it */ |
| 990 | if (rxq->free_count <= RX_LOW_WATERMARK) |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 991 | queue_work(il->workqueue, &il->rx_replenish); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 992 | |
| 993 | |
| 994 | /* If we've added more space for the firmware to place data, tell it. |
| 995 | * Increment device's write pointer in multiples of 8. */ |
Stanislaw Gruszka | 232913b | 2011-08-26 10:45:16 +0200 | [diff] [blame] | 996 | if (rxq->write_actual != (rxq->write & ~0x7) || |
| 997 | abs(rxq->write - rxq->read) > 7) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 998 | spin_lock_irqsave(&rxq->lock, flags); |
| 999 | rxq->need_update = 1; |
| 1000 | spin_unlock_irqrestore(&rxq->lock, flags); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1001 | il_rx_queue_update_write_ptr(il, rxq); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1002 | } |
| 1003 | } |
| 1004 | |
| 1005 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1006 | * il3945_rx_replenish - Move all used packet from rx_used to rx_free |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1007 | * |
| 1008 | * When moving to rx_free an SKB is allocated for the slot. |
| 1009 | * |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1010 | * Also restock the Rx queue via il3945_rx_queue_restock. |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1011 | * This is called as a scheduled work item (except for during initialization) |
| 1012 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1013 | static void il3945_rx_allocate(struct il_priv *il, gfp_t priority) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1014 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1015 | struct il_rx_queue *rxq = &il->rxq; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1016 | struct list_head *element; |
Stanislaw Gruszka | b73bb5f | 2011-08-26 14:37:54 +0200 | [diff] [blame] | 1017 | struct il_rx_buf *rxb; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1018 | struct page *page; |
| 1019 | unsigned long flags; |
| 1020 | gfp_t gfp_mask = priority; |
| 1021 | |
| 1022 | while (1) { |
| 1023 | spin_lock_irqsave(&rxq->lock, flags); |
| 1024 | |
| 1025 | if (list_empty(&rxq->rx_used)) { |
| 1026 | spin_unlock_irqrestore(&rxq->lock, flags); |
| 1027 | return; |
| 1028 | } |
| 1029 | spin_unlock_irqrestore(&rxq->lock, flags); |
| 1030 | |
| 1031 | if (rxq->free_count > RX_LOW_WATERMARK) |
| 1032 | gfp_mask |= __GFP_NOWARN; |
| 1033 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1034 | if (il->hw_params.rx_page_order > 0) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1035 | gfp_mask |= __GFP_COMP; |
| 1036 | |
| 1037 | /* Alloc a new receive buffer */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1038 | page = alloc_pages(gfp_mask, il->hw_params.rx_page_order); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1039 | if (!page) { |
| 1040 | if (net_ratelimit()) |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1041 | D_INFO("Failed to allocate SKB buffer.\n"); |
Stanislaw Gruszka | 232913b | 2011-08-26 10:45:16 +0200 | [diff] [blame] | 1042 | if (rxq->free_count <= RX_LOW_WATERMARK && |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1043 | net_ratelimit()) |
Stanislaw Gruszka | b6297cd | 2011-08-18 22:27:04 +0200 | [diff] [blame] | 1044 | IL_ERR("Failed to allocate SKB buffer with %s. Only %u free buffers remaining.\n", |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1045 | priority == GFP_ATOMIC ? "GFP_ATOMIC" : "GFP_KERNEL", |
| 1046 | rxq->free_count); |
| 1047 | /* We don't reschedule replenish work here -- we will |
| 1048 | * call the restock method and if it still needs |
| 1049 | * more buffers it will schedule replenish */ |
| 1050 | break; |
| 1051 | } |
| 1052 | |
| 1053 | spin_lock_irqsave(&rxq->lock, flags); |
| 1054 | if (list_empty(&rxq->rx_used)) { |
| 1055 | spin_unlock_irqrestore(&rxq->lock, flags); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1056 | __free_pages(page, il->hw_params.rx_page_order); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1057 | return; |
| 1058 | } |
| 1059 | element = rxq->rx_used.next; |
Stanislaw Gruszka | b73bb5f | 2011-08-26 14:37:54 +0200 | [diff] [blame] | 1060 | rxb = list_entry(element, struct il_rx_buf, list); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1061 | list_del(element); |
| 1062 | spin_unlock_irqrestore(&rxq->lock, flags); |
| 1063 | |
| 1064 | rxb->page = page; |
| 1065 | /* Get physical address of RB/SKB */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1066 | rxb->page_dma = pci_map_page(il->pci_dev, page, 0, |
| 1067 | PAGE_SIZE << il->hw_params.rx_page_order, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1068 | PCI_DMA_FROMDEVICE); |
| 1069 | |
| 1070 | spin_lock_irqsave(&rxq->lock, flags); |
| 1071 | |
| 1072 | list_add_tail(&rxb->list, &rxq->rx_free); |
| 1073 | rxq->free_count++; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1074 | il->alloc_rxb_page++; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1075 | |
| 1076 | spin_unlock_irqrestore(&rxq->lock, flags); |
| 1077 | } |
| 1078 | } |
| 1079 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1080 | void il3945_rx_queue_reset(struct il_priv *il, struct il_rx_queue *rxq) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1081 | { |
| 1082 | unsigned long flags; |
| 1083 | int i; |
| 1084 | spin_lock_irqsave(&rxq->lock, flags); |
| 1085 | INIT_LIST_HEAD(&rxq->rx_free); |
| 1086 | INIT_LIST_HEAD(&rxq->rx_used); |
| 1087 | /* Fill the rx_used queue with _all_ of the Rx buffers */ |
| 1088 | for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) { |
| 1089 | /* In the reset function, these buffers may have been allocated |
| 1090 | * to an SKB, so we need to unmap and free potential storage */ |
| 1091 | if (rxq->pool[i].page != NULL) { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1092 | pci_unmap_page(il->pci_dev, rxq->pool[i].page_dma, |
| 1093 | PAGE_SIZE << il->hw_params.rx_page_order, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1094 | PCI_DMA_FROMDEVICE); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1095 | __il_free_pages(il, rxq->pool[i].page); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1096 | rxq->pool[i].page = NULL; |
| 1097 | } |
| 1098 | list_add_tail(&rxq->pool[i].list, &rxq->rx_used); |
| 1099 | } |
| 1100 | |
| 1101 | /* Set us so that we have processed and used all buffers, but have |
| 1102 | * not restocked the Rx queue with fresh buffers */ |
| 1103 | rxq->read = rxq->write = 0; |
| 1104 | rxq->write_actual = 0; |
| 1105 | rxq->free_count = 0; |
| 1106 | spin_unlock_irqrestore(&rxq->lock, flags); |
| 1107 | } |
| 1108 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1109 | void il3945_rx_replenish(void *data) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1110 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1111 | struct il_priv *il = data; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1112 | unsigned long flags; |
| 1113 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1114 | il3945_rx_allocate(il, GFP_KERNEL); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1115 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1116 | spin_lock_irqsave(&il->lock, flags); |
| 1117 | il3945_rx_queue_restock(il); |
| 1118 | spin_unlock_irqrestore(&il->lock, flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1119 | } |
| 1120 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1121 | static void il3945_rx_replenish_now(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1122 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1123 | il3945_rx_allocate(il, GFP_ATOMIC); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1124 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1125 | il3945_rx_queue_restock(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1126 | } |
| 1127 | |
| 1128 | |
| 1129 | /* Assumes that the skb field of the buffers in 'pool' is kept accurate. |
| 1130 | * If an SKB has been detached, the POOL needs to have its SKB set to NULL |
| 1131 | * This free routine walks the list of POOL entries and if SKB is set to |
| 1132 | * non NULL it is unmapped and freed |
| 1133 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1134 | static void il3945_rx_queue_free(struct il_priv *il, struct il_rx_queue *rxq) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1135 | { |
| 1136 | int i; |
| 1137 | for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) { |
| 1138 | if (rxq->pool[i].page != NULL) { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1139 | pci_unmap_page(il->pci_dev, rxq->pool[i].page_dma, |
| 1140 | PAGE_SIZE << il->hw_params.rx_page_order, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1141 | PCI_DMA_FROMDEVICE); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1142 | __il_free_pages(il, rxq->pool[i].page); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1143 | rxq->pool[i].page = NULL; |
| 1144 | } |
| 1145 | } |
| 1146 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1147 | dma_free_coherent(&il->pci_dev->dev, 4 * RX_QUEUE_SIZE, rxq->bd, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1148 | rxq->bd_dma); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1149 | dma_free_coherent(&il->pci_dev->dev, sizeof(struct il_rb_status), |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1150 | rxq->rb_stts, rxq->rb_stts_dma); |
| 1151 | rxq->bd = NULL; |
| 1152 | rxq->rb_stts = NULL; |
| 1153 | } |
| 1154 | |
| 1155 | |
| 1156 | /* Convert linear signal-to-noise ratio into dB */ |
| 1157 | static u8 ratio2dB[100] = { |
| 1158 | /* 0 1 2 3 4 5 6 7 8 9 */ |
| 1159 | 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */ |
| 1160 | 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */ |
| 1161 | 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */ |
| 1162 | 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */ |
| 1163 | 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */ |
| 1164 | 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */ |
| 1165 | 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */ |
| 1166 | 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */ |
| 1167 | 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */ |
| 1168 | 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */ |
| 1169 | }; |
| 1170 | |
| 1171 | /* Calculates a relative dB value from a ratio of linear |
| 1172 | * (i.e. not dB) signal levels. |
| 1173 | * Conversion assumes that levels are voltages (20*log), not powers (10*log). */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1174 | int il3945_calc_db_from_ratio(int sig_ratio) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1175 | { |
| 1176 | /* 1000:1 or higher just report as 60 dB */ |
| 1177 | if (sig_ratio >= 1000) |
| 1178 | return 60; |
| 1179 | |
| 1180 | /* 100:1 or higher, divide by 10 and use table, |
| 1181 | * add 20 dB to make up for divide by 10 */ |
| 1182 | if (sig_ratio >= 100) |
| 1183 | return 20 + (int)ratio2dB[sig_ratio/10]; |
| 1184 | |
| 1185 | /* We shouldn't see this */ |
| 1186 | if (sig_ratio < 1) |
| 1187 | return 0; |
| 1188 | |
| 1189 | /* Use table for ratios 1:1 - 99:1 */ |
| 1190 | return (int)ratio2dB[sig_ratio]; |
| 1191 | } |
| 1192 | |
| 1193 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1194 | * il3945_rx_handle - Main entry function for receiving responses from uCode |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1195 | * |
Stanislaw Gruszka | d0c7234 | 2011-08-30 15:39:42 +0200 | [diff] [blame] | 1196 | * Uses the il->handlers callback function array to invoke |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1197 | * the appropriate handlers, including command responses, |
| 1198 | * frame-received notifications, and other notifications. |
| 1199 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1200 | static void il3945_rx_handle(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1201 | { |
Stanislaw Gruszka | b73bb5f | 2011-08-26 14:37:54 +0200 | [diff] [blame] | 1202 | struct il_rx_buf *rxb; |
Stanislaw Gruszka | dcae1c6 | 2011-08-26 14:36:21 +0200 | [diff] [blame] | 1203 | struct il_rx_pkt *pkt; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1204 | struct il_rx_queue *rxq = &il->rxq; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1205 | u32 r, i; |
| 1206 | int reclaim; |
| 1207 | unsigned long flags; |
| 1208 | u8 fill_rx = 0; |
| 1209 | u32 count = 8; |
| 1210 | int total_empty = 0; |
| 1211 | |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1212 | /* uCode's read idx (stored in shared DRAM) indicates the last Rx |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1213 | * buffer that the driver may process (last buffer filled by ucode). */ |
| 1214 | r = le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF; |
| 1215 | i = rxq->read; |
| 1216 | |
| 1217 | /* calculate total frames need to be restock after handling RX */ |
| 1218 | total_empty = r - rxq->write_actual; |
| 1219 | if (total_empty < 0) |
| 1220 | total_empty += RX_QUEUE_SIZE; |
| 1221 | |
| 1222 | if (total_empty > (RX_QUEUE_SIZE / 2)) |
| 1223 | fill_rx = 1; |
| 1224 | /* Rx interrupt, but nothing sent from uCode */ |
| 1225 | if (i == r) |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1226 | D_RX("r = %d, i = %d\n", r, i); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1227 | |
| 1228 | while (i != r) { |
| 1229 | int len; |
| 1230 | |
| 1231 | rxb = rxq->queue[i]; |
| 1232 | |
| 1233 | /* If an RXB doesn't have a Rx queue slot associated with it, |
| 1234 | * then a bug has been introduced in the queue refilling |
| 1235 | * routines -- catch it here */ |
| 1236 | BUG_ON(rxb == NULL); |
| 1237 | |
| 1238 | rxq->queue[i] = NULL; |
| 1239 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1240 | pci_unmap_page(il->pci_dev, rxb->page_dma, |
| 1241 | PAGE_SIZE << il->hw_params.rx_page_order, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1242 | PCI_DMA_FROMDEVICE); |
| 1243 | pkt = rxb_addr(rxb); |
| 1244 | |
| 1245 | len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK; |
| 1246 | len += sizeof(u32); /* account for status word */ |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1247 | |
| 1248 | /* Reclaim a command buffer only if this packet is a response |
| 1249 | * to a (driver-originated) command. |
| 1250 | * If the packet (e.g. Rx frame) originated from uCode, |
| 1251 | * there is no command buffer to reclaim. |
| 1252 | * Ucode should set SEQ_RX_FRAME bit if ucode-originated, |
| 1253 | * but apparently a few don't get set; catch them here. */ |
| 1254 | reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) && |
Stanislaw Gruszka | 4d69c75 | 2011-08-30 15:26:35 +0200 | [diff] [blame] | 1255 | pkt->hdr.cmd != N_STATS && |
| 1256 | pkt->hdr.cmd != C_TX; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1257 | |
| 1258 | /* Based on type of command response or notification, |
| 1259 | * handle those that need handling via function in |
Stanislaw Gruszka | d0c7234 | 2011-08-30 15:39:42 +0200 | [diff] [blame] | 1260 | * handlers table. See il3945_setup_handlers() */ |
| 1261 | if (il->handlers[pkt->hdr.cmd]) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1262 | D_RX("r = %d, i = %d, %s, 0x%02x\n", r, i, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1263 | il_get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd); |
Stanislaw Gruszka | d0c7234 | 2011-08-30 15:39:42 +0200 | [diff] [blame] | 1264 | il->isr_stats.handlers[pkt->hdr.cmd]++; |
| 1265 | il->handlers[pkt->hdr.cmd] (il, rxb); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1266 | } else { |
| 1267 | /* No handling needed */ |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1268 | D_RX( |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1269 | "r %d i %d No handler needed for %s, 0x%02x\n", |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1270 | r, i, il_get_cmd_string(pkt->hdr.cmd), |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1271 | pkt->hdr.cmd); |
| 1272 | } |
| 1273 | |
| 1274 | /* |
| 1275 | * XXX: After here, we should always check rxb->page |
| 1276 | * against NULL before touching it or its virtual |
Stanislaw Gruszka | d0c7234 | 2011-08-30 15:39:42 +0200 | [diff] [blame] | 1277 | * memory (pkt). Because some handler might have |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1278 | * already taken or freed the pages. |
| 1279 | */ |
| 1280 | |
| 1281 | if (reclaim) { |
| 1282 | /* Invoke any callbacks, transfer the buffer to caller, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1283 | * and fire off the (possibly) blocking il_send_cmd() |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1284 | * as we reclaim the driver command queue */ |
| 1285 | if (rxb->page) |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1286 | il_tx_cmd_complete(il, rxb); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1287 | else |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1288 | IL_WARN("Claim null rxb?\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1289 | } |
| 1290 | |
| 1291 | /* Reuse the page if possible. For notification packets and |
| 1292 | * SKBs that fail to Rx correctly, add them back into the |
| 1293 | * rx_free list for reuse later. */ |
| 1294 | spin_lock_irqsave(&rxq->lock, flags); |
| 1295 | if (rxb->page != NULL) { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1296 | rxb->page_dma = pci_map_page(il->pci_dev, rxb->page, |
| 1297 | 0, PAGE_SIZE << il->hw_params.rx_page_order, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1298 | PCI_DMA_FROMDEVICE); |
| 1299 | list_add_tail(&rxb->list, &rxq->rx_free); |
| 1300 | rxq->free_count++; |
| 1301 | } else |
| 1302 | list_add_tail(&rxb->list, &rxq->rx_used); |
| 1303 | |
| 1304 | spin_unlock_irqrestore(&rxq->lock, flags); |
| 1305 | |
| 1306 | i = (i + 1) & RX_QUEUE_MASK; |
| 1307 | /* If there are a lot of unused frames, |
| 1308 | * restock the Rx queue so ucode won't assert. */ |
| 1309 | if (fill_rx) { |
| 1310 | count++; |
| 1311 | if (count >= 8) { |
| 1312 | rxq->read = i; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1313 | il3945_rx_replenish_now(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1314 | count = 0; |
| 1315 | } |
| 1316 | } |
| 1317 | } |
| 1318 | |
| 1319 | /* Backtrack one entry */ |
| 1320 | rxq->read = i; |
| 1321 | if (fill_rx) |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1322 | il3945_rx_replenish_now(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1323 | else |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1324 | il3945_rx_queue_restock(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1325 | } |
| 1326 | |
| 1327 | /* call this function to flush any scheduled tasklet */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1328 | static inline void il3945_synchronize_irq(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1329 | { |
| 1330 | /* wait to make sure we flush pending tasklet*/ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1331 | synchronize_irq(il->pci_dev->irq); |
| 1332 | tasklet_kill(&il->irq_tasklet); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1333 | } |
| 1334 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1335 | static const char *il3945_desc_lookup(int i) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1336 | { |
| 1337 | switch (i) { |
| 1338 | case 1: |
| 1339 | return "FAIL"; |
| 1340 | case 2: |
| 1341 | return "BAD_PARAM"; |
| 1342 | case 3: |
| 1343 | return "BAD_CHECKSUM"; |
| 1344 | case 4: |
| 1345 | return "NMI_INTERRUPT"; |
| 1346 | case 5: |
| 1347 | return "SYSASSERT"; |
| 1348 | case 6: |
| 1349 | return "FATAL_ERROR"; |
| 1350 | } |
| 1351 | |
| 1352 | return "UNKNOWN"; |
| 1353 | } |
| 1354 | |
| 1355 | #define ERROR_START_OFFSET (1 * sizeof(u32)) |
| 1356 | #define ERROR_ELEM_SIZE (7 * sizeof(u32)) |
| 1357 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1358 | void il3945_dump_nic_error_log(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1359 | { |
| 1360 | u32 i; |
| 1361 | u32 desc, time, count, base, data1; |
| 1362 | u32 blink1, blink2, ilink1, ilink2; |
| 1363 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1364 | base = le32_to_cpu(il->card_alive.error_event_table_ptr); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1365 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1366 | if (!il3945_hw_valid_rtc_data_addr(base)) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1367 | IL_ERR("Not valid error log pointer 0x%08X\n", base); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1368 | return; |
| 1369 | } |
| 1370 | |
| 1371 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1372 | count = il_read_targ_mem(il, base); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1373 | |
| 1374 | if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1375 | IL_ERR("Start IWL Error Log Dump:\n"); |
| 1376 | IL_ERR("Status: 0x%08lX, count: %d\n", |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1377 | il->status, count); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1378 | } |
| 1379 | |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1380 | IL_ERR("Desc Time asrtPC blink2 " |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1381 | "ilink1 nmiPC Line\n"); |
| 1382 | for (i = ERROR_START_OFFSET; |
| 1383 | i < (count * ERROR_ELEM_SIZE) + ERROR_START_OFFSET; |
| 1384 | i += ERROR_ELEM_SIZE) { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1385 | desc = il_read_targ_mem(il, base + i); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1386 | time = |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1387 | il_read_targ_mem(il, base + i + 1 * sizeof(u32)); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1388 | blink1 = |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1389 | il_read_targ_mem(il, base + i + 2 * sizeof(u32)); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1390 | blink2 = |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1391 | il_read_targ_mem(il, base + i + 3 * sizeof(u32)); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1392 | ilink1 = |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1393 | il_read_targ_mem(il, base + i + 4 * sizeof(u32)); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1394 | ilink2 = |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1395 | il_read_targ_mem(il, base + i + 5 * sizeof(u32)); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1396 | data1 = |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1397 | il_read_targ_mem(il, base + i + 6 * sizeof(u32)); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1398 | |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1399 | IL_ERR( |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1400 | "%-13s (0x%X) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n", |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1401 | il3945_desc_lookup(desc), desc, time, blink1, blink2, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1402 | ilink1, ilink2, data1); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1403 | } |
| 1404 | } |
| 1405 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1406 | static void il3945_irq_tasklet(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1407 | { |
| 1408 | u32 inta, handled = 0; |
| 1409 | u32 inta_fh; |
| 1410 | unsigned long flags; |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 1411 | #ifdef CONFIG_IWLEGACY_DEBUG |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1412 | u32 inta_mask; |
| 1413 | #endif |
| 1414 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1415 | spin_lock_irqsave(&il->lock, flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1416 | |
| 1417 | /* Ack/clear/reset pending uCode interrupts. |
| 1418 | * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS, |
| 1419 | * and will clear only when CSR_FH_INT_STATUS gets cleared. */ |
Stanislaw Gruszka | 841b2cc | 2011-08-24 15:14:03 +0200 | [diff] [blame] | 1420 | inta = _il_rd(il, CSR_INT); |
| 1421 | _il_wr(il, CSR_INT, inta); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1422 | |
| 1423 | /* Ack/clear/reset pending flow-handler (DMA) interrupts. |
| 1424 | * Any new interrupts that happen after this, either while we're |
| 1425 | * in this tasklet, or later, will show up in next ISR/tasklet. */ |
Stanislaw Gruszka | 841b2cc | 2011-08-24 15:14:03 +0200 | [diff] [blame] | 1426 | inta_fh = _il_rd(il, CSR_FH_INT_STATUS); |
| 1427 | _il_wr(il, CSR_FH_INT_STATUS, inta_fh); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1428 | |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 1429 | #ifdef CONFIG_IWLEGACY_DEBUG |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1430 | if (il_get_debug_level(il) & IL_DL_ISR) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1431 | /* just for debug */ |
Stanislaw Gruszka | 841b2cc | 2011-08-24 15:14:03 +0200 | [diff] [blame] | 1432 | inta_mask = _il_rd(il, CSR_INT_MASK); |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1433 | D_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1434 | inta, inta_mask, inta_fh); |
| 1435 | } |
| 1436 | #endif |
| 1437 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1438 | spin_unlock_irqrestore(&il->lock, flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1439 | |
| 1440 | /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not |
| 1441 | * atomic, make sure that inta covers all the interrupts that |
| 1442 | * we've discovered, even if FH interrupt came in just after |
| 1443 | * reading CSR_INT. */ |
| 1444 | if (inta_fh & CSR39_FH_INT_RX_MASK) |
| 1445 | inta |= CSR_INT_BIT_FH_RX; |
| 1446 | if (inta_fh & CSR39_FH_INT_TX_MASK) |
| 1447 | inta |= CSR_INT_BIT_FH_TX; |
| 1448 | |
| 1449 | /* Now service all interrupt bits discovered above. */ |
| 1450 | if (inta & CSR_INT_BIT_HW_ERR) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1451 | IL_ERR("Hardware error detected. Restarting.\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1452 | |
| 1453 | /* Tell the device to stop sending interrupts */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1454 | il_disable_interrupts(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1455 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1456 | il->isr_stats.hw++; |
| 1457 | il_irq_handle_error(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1458 | |
| 1459 | handled |= CSR_INT_BIT_HW_ERR; |
| 1460 | |
| 1461 | return; |
| 1462 | } |
| 1463 | |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 1464 | #ifdef CONFIG_IWLEGACY_DEBUG |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1465 | if (il_get_debug_level(il) & (IL_DL_ISR)) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1466 | /* NIC fires this, but we don't use it, redundant with WAKEUP */ |
| 1467 | if (inta & CSR_INT_BIT_SCD) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1468 | D_ISR("Scheduler finished to transmit " |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1469 | "the frame/frames.\n"); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1470 | il->isr_stats.sch++; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1471 | } |
| 1472 | |
| 1473 | /* Alive notification via Rx interrupt will do the real work */ |
| 1474 | if (inta & CSR_INT_BIT_ALIVE) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1475 | D_ISR("Alive interrupt\n"); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1476 | il->isr_stats.alive++; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1477 | } |
| 1478 | } |
| 1479 | #endif |
| 1480 | /* Safely ignore these bits for debug checks below */ |
| 1481 | inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE); |
| 1482 | |
| 1483 | /* Error detected by uCode */ |
| 1484 | if (inta & CSR_INT_BIT_SW_ERR) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1485 | IL_ERR("Microcode SW error detected. " |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1486 | "Restarting 0x%X.\n", inta); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1487 | il->isr_stats.sw++; |
| 1488 | il_irq_handle_error(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1489 | handled |= CSR_INT_BIT_SW_ERR; |
| 1490 | } |
| 1491 | |
| 1492 | /* uCode wakes up after power-down sleep */ |
| 1493 | if (inta & CSR_INT_BIT_WAKEUP) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1494 | D_ISR("Wakeup interrupt\n"); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1495 | il_rx_queue_update_write_ptr(il, &il->rxq); |
| 1496 | il_txq_update_write_ptr(il, &il->txq[0]); |
| 1497 | il_txq_update_write_ptr(il, &il->txq[1]); |
| 1498 | il_txq_update_write_ptr(il, &il->txq[2]); |
| 1499 | il_txq_update_write_ptr(il, &il->txq[3]); |
| 1500 | il_txq_update_write_ptr(il, &il->txq[4]); |
| 1501 | il_txq_update_write_ptr(il, &il->txq[5]); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1502 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1503 | il->isr_stats.wakeup++; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1504 | handled |= CSR_INT_BIT_WAKEUP; |
| 1505 | } |
| 1506 | |
| 1507 | /* All uCode command responses, including Tx command responses, |
| 1508 | * Rx "responses" (frame-received notification), and other |
| 1509 | * notifications from uCode come through here*/ |
| 1510 | if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1511 | il3945_rx_handle(il); |
| 1512 | il->isr_stats.rx++; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1513 | handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX); |
| 1514 | } |
| 1515 | |
| 1516 | if (inta & CSR_INT_BIT_FH_TX) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1517 | D_ISR("Tx interrupt\n"); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1518 | il->isr_stats.tx++; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1519 | |
Stanislaw Gruszka | 841b2cc | 2011-08-24 15:14:03 +0200 | [diff] [blame] | 1520 | _il_wr(il, CSR_FH_INT_STATUS, (1 << 6)); |
Stanislaw Gruszka | 0c1a94e | 2011-08-24 17:37:16 +0200 | [diff] [blame] | 1521 | il_wr(il, FH39_TCSR_CREDIT |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1522 | (FH39_SRVC_CHNL), 0x0); |
| 1523 | handled |= CSR_INT_BIT_FH_TX; |
| 1524 | } |
| 1525 | |
| 1526 | if (inta & ~handled) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1527 | IL_ERR("Unhandled INTA bits 0x%08x\n", inta & ~handled); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1528 | il->isr_stats.unhandled++; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1529 | } |
| 1530 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1531 | if (inta & ~il->inta_mask) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1532 | IL_WARN("Disabled INTA bits 0x%08x were pending\n", |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1533 | inta & ~il->inta_mask); |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1534 | IL_WARN(" with FH_INT = 0x%08x\n", inta_fh); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1535 | } |
| 1536 | |
| 1537 | /* Re-enable all interrupts */ |
| 1538 | /* only Re-enable if disabled by irq */ |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 1539 | if (test_bit(S_INT_ENABLED, &il->status)) |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1540 | il_enable_interrupts(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1541 | |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 1542 | #ifdef CONFIG_IWLEGACY_DEBUG |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1543 | if (il_get_debug_level(il) & (IL_DL_ISR)) { |
Stanislaw Gruszka | 841b2cc | 2011-08-24 15:14:03 +0200 | [diff] [blame] | 1544 | inta = _il_rd(il, CSR_INT); |
| 1545 | inta_mask = _il_rd(il, CSR_INT_MASK); |
| 1546 | inta_fh = _il_rd(il, CSR_FH_INT_STATUS); |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1547 | D_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, " |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1548 | "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags); |
| 1549 | } |
| 1550 | #endif |
| 1551 | } |
| 1552 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1553 | static int il3945_get_channels_for_scan(struct il_priv *il, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1554 | enum ieee80211_band band, |
| 1555 | u8 is_active, u8 n_probes, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1556 | struct il3945_scan_channel *scan_ch, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1557 | struct ieee80211_vif *vif) |
| 1558 | { |
| 1559 | struct ieee80211_channel *chan; |
| 1560 | const struct ieee80211_supported_band *sband; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1561 | const struct il_channel_info *ch_info; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1562 | u16 passive_dwell = 0; |
| 1563 | u16 active_dwell = 0; |
| 1564 | int added, i; |
| 1565 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1566 | sband = il_get_hw_mode(il, band); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1567 | if (!sband) |
| 1568 | return 0; |
| 1569 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1570 | active_dwell = il_get_active_dwell_time(il, band, n_probes); |
| 1571 | passive_dwell = il_get_passive_dwell_time(il, band, vif); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1572 | |
| 1573 | if (passive_dwell <= active_dwell) |
| 1574 | passive_dwell = active_dwell + 1; |
| 1575 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1576 | for (i = 0, added = 0; i < il->scan_request->n_channels; i++) { |
| 1577 | chan = il->scan_request->channels[i]; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1578 | |
| 1579 | if (chan->band != band) |
| 1580 | continue; |
| 1581 | |
| 1582 | scan_ch->channel = chan->hw_value; |
| 1583 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1584 | ch_info = il_get_channel_info(il, band, |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 1585 | scan_ch->channel); |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1586 | if (!il_is_channel_valid(ch_info)) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1587 | D_SCAN( |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 1588 | "Channel %d is INVALID for this band.\n", |
| 1589 | scan_ch->channel); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1590 | continue; |
| 1591 | } |
| 1592 | |
| 1593 | scan_ch->active_dwell = cpu_to_le16(active_dwell); |
| 1594 | scan_ch->passive_dwell = cpu_to_le16(passive_dwell); |
| 1595 | /* If passive , set up for auto-switch |
| 1596 | * and use long active_dwell time. |
| 1597 | */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1598 | if (!is_active || il_is_channel_passive(ch_info) || |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1599 | (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)) { |
| 1600 | scan_ch->type = 0; /* passive */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1601 | if (IL_UCODE_API(il->ucode_ver) == 1) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1602 | scan_ch->active_dwell = cpu_to_le16(passive_dwell - 1); |
| 1603 | } else { |
| 1604 | scan_ch->type = 1; /* active */ |
| 1605 | } |
| 1606 | |
| 1607 | /* Set direct probe bits. These may be used both for active |
| 1608 | * scan channels (probes gets sent right away), |
| 1609 | * or for passive channels (probes get se sent only after |
| 1610 | * hearing clear Rx packet).*/ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1611 | if (IL_UCODE_API(il->ucode_ver) >= 2) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1612 | if (n_probes) |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 1613 | scan_ch->type |= IL39_SCAN_PROBE_MASK(n_probes); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1614 | } else { |
| 1615 | /* uCode v1 does not allow setting direct probe bits on |
| 1616 | * passive channel. */ |
| 1617 | if ((scan_ch->type & 1) && n_probes) |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 1618 | scan_ch->type |= IL39_SCAN_PROBE_MASK(n_probes); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1619 | } |
| 1620 | |
| 1621 | /* Set txpower levels to defaults */ |
| 1622 | scan_ch->tpc.dsp_atten = 110; |
| 1623 | /* scan_pwr_info->tpc.dsp_atten; */ |
| 1624 | |
| 1625 | /*scan_pwr_info->tpc.tx_gain; */ |
| 1626 | if (band == IEEE80211_BAND_5GHZ) |
| 1627 | scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3; |
| 1628 | else { |
| 1629 | scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3)); |
| 1630 | /* NOTE: if we were doing 6Mb OFDM for scans we'd use |
| 1631 | * power level: |
| 1632 | * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3; |
| 1633 | */ |
| 1634 | } |
| 1635 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1636 | D_SCAN("Scanning %d [%s %d]\n", |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1637 | scan_ch->channel, |
| 1638 | (scan_ch->type & 1) ? "ACTIVE" : "PASSIVE", |
| 1639 | (scan_ch->type & 1) ? |
| 1640 | active_dwell : passive_dwell); |
| 1641 | |
| 1642 | scan_ch++; |
| 1643 | added++; |
| 1644 | } |
| 1645 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1646 | D_SCAN("total channels to scan %d\n", added); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1647 | return added; |
| 1648 | } |
| 1649 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1650 | static void il3945_init_hw_rates(struct il_priv *il, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1651 | struct ieee80211_rate *rates) |
| 1652 | { |
| 1653 | int i; |
| 1654 | |
Stanislaw Gruszka | 2eb0581 | 2011-08-26 16:07:43 +0200 | [diff] [blame] | 1655 | for (i = 0; i < RATE_COUNT_LEGACY; i++) { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1656 | rates[i].bitrate = il3945_rates[i].ieee * 5; |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1657 | rates[i].hw_value = i; /* Rate scaling will work on idxes */ |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1658 | rates[i].hw_value_short = i; |
| 1659 | rates[i].flags = 0; |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 1660 | if (i > IL39_LAST_OFDM_RATE || i < IL_FIRST_OFDM_RATE) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1661 | /* |
| 1662 | * If CCK != 1M then set short preamble rate flag. |
| 1663 | */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1664 | rates[i].flags |= (il3945_rates[i].plcp == 10) ? |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1665 | 0 : IEEE80211_RATE_SHORT_PREAMBLE; |
| 1666 | } |
| 1667 | } |
| 1668 | } |
| 1669 | |
| 1670 | /****************************************************************************** |
| 1671 | * |
| 1672 | * uCode download functions |
| 1673 | * |
| 1674 | ******************************************************************************/ |
| 1675 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1676 | static void il3945_dealloc_ucode_pci(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1677 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1678 | il_free_fw_desc(il->pci_dev, &il->ucode_code); |
| 1679 | il_free_fw_desc(il->pci_dev, &il->ucode_data); |
| 1680 | il_free_fw_desc(il->pci_dev, &il->ucode_data_backup); |
| 1681 | il_free_fw_desc(il->pci_dev, &il->ucode_init); |
| 1682 | il_free_fw_desc(il->pci_dev, &il->ucode_init_data); |
| 1683 | il_free_fw_desc(il->pci_dev, &il->ucode_boot); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1684 | } |
| 1685 | |
| 1686 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1687 | * il3945_verify_inst_full - verify runtime uCode image in card vs. host, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1688 | * looking at all data. |
| 1689 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1690 | static int il3945_verify_inst_full(struct il_priv *il, __le32 *image, u32 len) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1691 | { |
| 1692 | u32 val; |
| 1693 | u32 save_len = len; |
| 1694 | int rc = 0; |
| 1695 | u32 errcnt; |
| 1696 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1697 | D_INFO("ucode inst image size is %u\n", len); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1698 | |
Stanislaw Gruszka | 0c1a94e | 2011-08-24 17:37:16 +0200 | [diff] [blame] | 1699 | il_wr(il, HBUS_TARG_MEM_RADDR, |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 1700 | IL39_RTC_INST_LOWER_BOUND); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1701 | |
| 1702 | errcnt = 0; |
| 1703 | for (; len > 0; len -= sizeof(u32), image++) { |
| 1704 | /* read data comes through single port, auto-incr addr */ |
| 1705 | /* NOTE: Use the debugless read so we don't flood kernel log |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1706 | * if IL_DL_IO is set */ |
Stanislaw Gruszka | 1c8cae5 | 2011-08-24 15:46:03 +0200 | [diff] [blame] | 1707 | val = _il_rd(il, HBUS_TARG_MEM_RDAT); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1708 | if (val != le32_to_cpu(*image)) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1709 | IL_ERR("uCode INST section is invalid at " |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1710 | "offset 0x%x, is 0x%x, s/b 0x%x\n", |
| 1711 | save_len - len, val, le32_to_cpu(*image)); |
| 1712 | rc = -EIO; |
| 1713 | errcnt++; |
| 1714 | if (errcnt >= 20) |
| 1715 | break; |
| 1716 | } |
| 1717 | } |
| 1718 | |
| 1719 | |
| 1720 | if (!errcnt) |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1721 | D_INFO( |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1722 | "ucode image in INSTRUCTION memory is good\n"); |
| 1723 | |
| 1724 | return rc; |
| 1725 | } |
| 1726 | |
| 1727 | |
| 1728 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1729 | * il3945_verify_inst_sparse - verify runtime uCode image in card vs. host, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1730 | * using sample data 100 bytes apart. If these sample points are good, |
| 1731 | * it's a pretty good bet that everything between them is good, too. |
| 1732 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1733 | static int il3945_verify_inst_sparse(struct il_priv *il, __le32 *image, u32 len) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1734 | { |
| 1735 | u32 val; |
| 1736 | int rc = 0; |
| 1737 | u32 errcnt = 0; |
| 1738 | u32 i; |
| 1739 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1740 | D_INFO("ucode inst image size is %u\n", len); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1741 | |
| 1742 | for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) { |
| 1743 | /* read data comes through single port, auto-incr addr */ |
| 1744 | /* NOTE: Use the debugless read so we don't flood kernel log |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1745 | * if IL_DL_IO is set */ |
Stanislaw Gruszka | 0c1a94e | 2011-08-24 17:37:16 +0200 | [diff] [blame] | 1746 | il_wr(il, HBUS_TARG_MEM_RADDR, |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 1747 | i + IL39_RTC_INST_LOWER_BOUND); |
Stanislaw Gruszka | 1c8cae5 | 2011-08-24 15:46:03 +0200 | [diff] [blame] | 1748 | val = _il_rd(il, HBUS_TARG_MEM_RDAT); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1749 | if (val != le32_to_cpu(*image)) { |
| 1750 | #if 0 /* Enable this if you want to see details */ |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1751 | IL_ERR("uCode INST section is invalid at " |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1752 | "offset 0x%x, is 0x%x, s/b 0x%x\n", |
| 1753 | i, val, *image); |
| 1754 | #endif |
| 1755 | rc = -EIO; |
| 1756 | errcnt++; |
| 1757 | if (errcnt >= 3) |
| 1758 | break; |
| 1759 | } |
| 1760 | } |
| 1761 | |
| 1762 | return rc; |
| 1763 | } |
| 1764 | |
| 1765 | |
| 1766 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1767 | * il3945_verify_ucode - determine which instruction image is in SRAM, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1768 | * and verify its contents |
| 1769 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1770 | static int il3945_verify_ucode(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1771 | { |
| 1772 | __le32 *image; |
| 1773 | u32 len; |
| 1774 | int rc = 0; |
| 1775 | |
| 1776 | /* Try bootstrap */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1777 | image = (__le32 *)il->ucode_boot.v_addr; |
| 1778 | len = il->ucode_boot.len; |
| 1779 | rc = il3945_verify_inst_sparse(il, image, len); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1780 | if (rc == 0) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1781 | D_INFO("Bootstrap uCode is good in inst SRAM\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1782 | return 0; |
| 1783 | } |
| 1784 | |
| 1785 | /* Try initialize */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1786 | image = (__le32 *)il->ucode_init.v_addr; |
| 1787 | len = il->ucode_init.len; |
| 1788 | rc = il3945_verify_inst_sparse(il, image, len); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1789 | if (rc == 0) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1790 | D_INFO("Initialize uCode is good in inst SRAM\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1791 | return 0; |
| 1792 | } |
| 1793 | |
| 1794 | /* Try runtime/protocol */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1795 | image = (__le32 *)il->ucode_code.v_addr; |
| 1796 | len = il->ucode_code.len; |
| 1797 | rc = il3945_verify_inst_sparse(il, image, len); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1798 | if (rc == 0) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1799 | D_INFO("Runtime uCode is good in inst SRAM\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1800 | return 0; |
| 1801 | } |
| 1802 | |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1803 | IL_ERR("NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1804 | |
| 1805 | /* Since nothing seems to match, show first several data entries in |
| 1806 | * instruction SRAM, so maybe visual inspection will give a clue. |
| 1807 | * Selection of bootstrap image (vs. other images) is arbitrary. */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1808 | image = (__le32 *)il->ucode_boot.v_addr; |
| 1809 | len = il->ucode_boot.len; |
| 1810 | rc = il3945_verify_inst_full(il, image, len); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1811 | |
| 1812 | return rc; |
| 1813 | } |
| 1814 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1815 | static void il3945_nic_start(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1816 | { |
| 1817 | /* Remove all resets to allow NIC to operate */ |
Stanislaw Gruszka | 841b2cc | 2011-08-24 15:14:03 +0200 | [diff] [blame] | 1818 | _il_wr(il, CSR_RESET, 0); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1819 | } |
| 1820 | |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 1821 | #define IL3945_UCODE_GET(item) \ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1822 | static u32 il3945_ucode_get_##item(const struct il_ucode_header *ucode)\ |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1823 | { \ |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 1824 | return le32_to_cpu(ucode->v1.item); \ |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1825 | } |
| 1826 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1827 | static u32 il3945_ucode_get_header_size(u32 api_ver) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1828 | { |
| 1829 | return 24; |
| 1830 | } |
| 1831 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1832 | static u8 *il3945_ucode_get_data(const struct il_ucode_header *ucode) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1833 | { |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 1834 | return (u8 *) ucode->v1.data; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1835 | } |
| 1836 | |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 1837 | IL3945_UCODE_GET(inst_size); |
| 1838 | IL3945_UCODE_GET(data_size); |
| 1839 | IL3945_UCODE_GET(init_size); |
| 1840 | IL3945_UCODE_GET(init_data_size); |
| 1841 | IL3945_UCODE_GET(boot_size); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1842 | |
| 1843 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1844 | * il3945_read_ucode - Read uCode images from disk file. |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1845 | * |
| 1846 | * Copy into buffers for card to fetch via bus-mastering |
| 1847 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1848 | static int il3945_read_ucode(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1849 | { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1850 | const struct il_ucode_header *ucode; |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1851 | int ret = -EINVAL, idx; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1852 | const struct firmware *ucode_raw; |
| 1853 | /* firmware file name contains uCode/driver compatibility version */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1854 | const char *name_pre = il->cfg->fw_name_pre; |
| 1855 | const unsigned int api_max = il->cfg->ucode_api_max; |
| 1856 | const unsigned int api_min = il->cfg->ucode_api_min; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1857 | char buf[25]; |
| 1858 | u8 *src; |
| 1859 | size_t len; |
| 1860 | u32 api_ver, inst_size, data_size, init_size, init_data_size, boot_size; |
| 1861 | |
| 1862 | /* Ask kernel firmware_class module to get the boot firmware off disk. |
| 1863 | * request_firmware() is synchronous, file is in memory on return. */ |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1864 | for (idx = api_max; idx >= api_min; idx--) { |
| 1865 | sprintf(buf, "%s%u%s", name_pre, idx, ".ucode"); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1866 | ret = request_firmware(&ucode_raw, buf, &il->pci_dev->dev); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1867 | if (ret < 0) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1868 | IL_ERR("%s firmware file req failed: %d\n", |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1869 | buf, ret); |
| 1870 | if (ret == -ENOENT) |
| 1871 | continue; |
| 1872 | else |
| 1873 | goto error; |
| 1874 | } else { |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1875 | if (idx < api_max) |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1876 | IL_ERR("Loaded firmware %s, " |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1877 | "which is deprecated. " |
| 1878 | " Please use API v%u instead.\n", |
| 1879 | buf, api_max); |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1880 | D_INFO("Got firmware '%s' file " |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1881 | "(%zd bytes) from disk\n", |
| 1882 | buf, ucode_raw->size); |
| 1883 | break; |
| 1884 | } |
| 1885 | } |
| 1886 | |
| 1887 | if (ret < 0) |
| 1888 | goto error; |
| 1889 | |
| 1890 | /* Make sure that we got at least our header! */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1891 | if (ucode_raw->size < il3945_ucode_get_header_size(1)) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1892 | IL_ERR("File size way too small!\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1893 | ret = -EINVAL; |
| 1894 | goto err_release; |
| 1895 | } |
| 1896 | |
| 1897 | /* Data from ucode file: header followed by uCode images */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1898 | ucode = (struct il_ucode_header *)ucode_raw->data; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1899 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1900 | il->ucode_ver = le32_to_cpu(ucode->ver); |
| 1901 | api_ver = IL_UCODE_API(il->ucode_ver); |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1902 | inst_size = il3945_ucode_get_inst_size(ucode); |
| 1903 | data_size = il3945_ucode_get_data_size(ucode); |
| 1904 | init_size = il3945_ucode_get_init_size(ucode); |
| 1905 | init_data_size = il3945_ucode_get_init_data_size(ucode); |
| 1906 | boot_size = il3945_ucode_get_boot_size(ucode); |
| 1907 | src = il3945_ucode_get_data(ucode); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1908 | |
| 1909 | /* api_ver should match the api version forming part of the |
| 1910 | * firmware filename ... but we don't check for that and only rely |
| 1911 | * on the API version read from firmware header from here on forward */ |
| 1912 | |
| 1913 | if (api_ver < api_min || api_ver > api_max) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1914 | IL_ERR("Driver unable to support your firmware API. " |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1915 | "Driver supports v%u, firmware is v%u.\n", |
| 1916 | api_max, api_ver); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1917 | il->ucode_ver = 0; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1918 | ret = -EINVAL; |
| 1919 | goto err_release; |
| 1920 | } |
| 1921 | if (api_ver != api_max) |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1922 | IL_ERR("Firmware has old API version. Expected %u, " |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1923 | "got %u. New firmware can be obtained " |
| 1924 | "from http://www.intellinuxwireless.org.\n", |
| 1925 | api_max, api_ver); |
| 1926 | |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1927 | IL_INFO("loaded firmware version %u.%u.%u.%u\n", |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1928 | IL_UCODE_MAJOR(il->ucode_ver), |
| 1929 | IL_UCODE_MINOR(il->ucode_ver), |
| 1930 | IL_UCODE_API(il->ucode_ver), |
| 1931 | IL_UCODE_SERIAL(il->ucode_ver)); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1932 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1933 | snprintf(il->hw->wiphy->fw_version, |
| 1934 | sizeof(il->hw->wiphy->fw_version), |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1935 | "%u.%u.%u.%u", |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1936 | IL_UCODE_MAJOR(il->ucode_ver), |
| 1937 | IL_UCODE_MINOR(il->ucode_ver), |
| 1938 | IL_UCODE_API(il->ucode_ver), |
| 1939 | IL_UCODE_SERIAL(il->ucode_ver)); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1940 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1941 | D_INFO("f/w package hdr ucode version raw = 0x%x\n", |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1942 | il->ucode_ver); |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1943 | D_INFO("f/w package hdr runtime inst size = %u\n", |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1944 | inst_size); |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1945 | D_INFO("f/w package hdr runtime data size = %u\n", |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1946 | data_size); |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1947 | D_INFO("f/w package hdr init inst size = %u\n", |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1948 | init_size); |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1949 | D_INFO("f/w package hdr init data size = %u\n", |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1950 | init_data_size); |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1951 | D_INFO("f/w package hdr boot inst size = %u\n", |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1952 | boot_size); |
| 1953 | |
| 1954 | |
| 1955 | /* Verify size of file vs. image size info in file's header */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1956 | if (ucode_raw->size != il3945_ucode_get_header_size(api_ver) + |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1957 | inst_size + data_size + init_size + |
| 1958 | init_data_size + boot_size) { |
| 1959 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1960 | D_INFO( |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1961 | "uCode file size %zd does not match expected size\n", |
| 1962 | ucode_raw->size); |
| 1963 | ret = -EINVAL; |
| 1964 | goto err_release; |
| 1965 | } |
| 1966 | |
| 1967 | /* Verify that uCode images will fit in card's SRAM */ |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 1968 | if (inst_size > IL39_MAX_INST_SIZE) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1969 | D_INFO("uCode instr len %d too large to fit in\n", |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1970 | inst_size); |
| 1971 | ret = -EINVAL; |
| 1972 | goto err_release; |
| 1973 | } |
| 1974 | |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 1975 | if (data_size > IL39_MAX_DATA_SIZE) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1976 | D_INFO("uCode data len %d too large to fit in\n", |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1977 | data_size); |
| 1978 | ret = -EINVAL; |
| 1979 | goto err_release; |
| 1980 | } |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 1981 | if (init_size > IL39_MAX_INST_SIZE) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1982 | D_INFO( |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1983 | "uCode init instr len %d too large to fit in\n", |
| 1984 | init_size); |
| 1985 | ret = -EINVAL; |
| 1986 | goto err_release; |
| 1987 | } |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 1988 | if (init_data_size > IL39_MAX_DATA_SIZE) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1989 | D_INFO( |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1990 | "uCode init data len %d too large to fit in\n", |
| 1991 | init_data_size); |
| 1992 | ret = -EINVAL; |
| 1993 | goto err_release; |
| 1994 | } |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 1995 | if (boot_size > IL39_MAX_BSM_SIZE) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1996 | D_INFO( |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1997 | "uCode boot instr len %d too large to fit in\n", |
| 1998 | boot_size); |
| 1999 | ret = -EINVAL; |
| 2000 | goto err_release; |
| 2001 | } |
| 2002 | |
| 2003 | /* Allocate ucode buffers for card's bus-master loading ... */ |
| 2004 | |
| 2005 | /* Runtime instructions and 2 copies of data: |
| 2006 | * 1) unmodified from disk |
| 2007 | * 2) backup cache for save/restore during power-downs */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2008 | il->ucode_code.len = inst_size; |
| 2009 | il_alloc_fw_desc(il->pci_dev, &il->ucode_code); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2010 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2011 | il->ucode_data.len = data_size; |
| 2012 | il_alloc_fw_desc(il->pci_dev, &il->ucode_data); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2013 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2014 | il->ucode_data_backup.len = data_size; |
| 2015 | il_alloc_fw_desc(il->pci_dev, &il->ucode_data_backup); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2016 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2017 | if (!il->ucode_code.v_addr || !il->ucode_data.v_addr || |
| 2018 | !il->ucode_data_backup.v_addr) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2019 | goto err_pci_alloc; |
| 2020 | |
| 2021 | /* Initialization instructions and data */ |
| 2022 | if (init_size && init_data_size) { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2023 | il->ucode_init.len = init_size; |
| 2024 | il_alloc_fw_desc(il->pci_dev, &il->ucode_init); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2025 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2026 | il->ucode_init_data.len = init_data_size; |
| 2027 | il_alloc_fw_desc(il->pci_dev, &il->ucode_init_data); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2028 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2029 | if (!il->ucode_init.v_addr || !il->ucode_init_data.v_addr) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2030 | goto err_pci_alloc; |
| 2031 | } |
| 2032 | |
| 2033 | /* Bootstrap (instructions only, no data) */ |
| 2034 | if (boot_size) { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2035 | il->ucode_boot.len = boot_size; |
| 2036 | il_alloc_fw_desc(il->pci_dev, &il->ucode_boot); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2037 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2038 | if (!il->ucode_boot.v_addr) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2039 | goto err_pci_alloc; |
| 2040 | } |
| 2041 | |
| 2042 | /* Copy images into buffers for card's bus-master reads ... */ |
| 2043 | |
| 2044 | /* Runtime instructions (first block of data in file) */ |
| 2045 | len = inst_size; |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2046 | D_INFO( |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2047 | "Copying (but not loading) uCode instr len %zd\n", len); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2048 | memcpy(il->ucode_code.v_addr, src, len); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2049 | src += len; |
| 2050 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2051 | D_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n", |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2052 | il->ucode_code.v_addr, (u32)il->ucode_code.p_addr); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2053 | |
| 2054 | /* Runtime data (2nd block) |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2055 | * NOTE: Copy into backup buffer will be done in il3945_up() */ |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2056 | len = data_size; |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2057 | D_INFO( |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2058 | "Copying (but not loading) uCode data len %zd\n", len); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2059 | memcpy(il->ucode_data.v_addr, src, len); |
| 2060 | memcpy(il->ucode_data_backup.v_addr, src, len); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2061 | src += len; |
| 2062 | |
| 2063 | /* Initialization instructions (3rd block) */ |
| 2064 | if (init_size) { |
| 2065 | len = init_size; |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2066 | D_INFO( |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2067 | "Copying (but not loading) init instr len %zd\n", len); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2068 | memcpy(il->ucode_init.v_addr, src, len); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2069 | src += len; |
| 2070 | } |
| 2071 | |
| 2072 | /* Initialization data (4th block) */ |
| 2073 | if (init_data_size) { |
| 2074 | len = init_data_size; |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2075 | D_INFO( |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2076 | "Copying (but not loading) init data len %zd\n", len); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2077 | memcpy(il->ucode_init_data.v_addr, src, len); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2078 | src += len; |
| 2079 | } |
| 2080 | |
| 2081 | /* Bootstrap instructions (5th block) */ |
| 2082 | len = boot_size; |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2083 | D_INFO( |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2084 | "Copying (but not loading) boot instr len %zd\n", len); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2085 | memcpy(il->ucode_boot.v_addr, src, len); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2086 | |
| 2087 | /* We have our copies now, allow OS release its copies */ |
| 2088 | release_firmware(ucode_raw); |
| 2089 | return 0; |
| 2090 | |
| 2091 | err_pci_alloc: |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 2092 | IL_ERR("failed to allocate pci memory\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2093 | ret = -ENOMEM; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2094 | il3945_dealloc_ucode_pci(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2095 | |
| 2096 | err_release: |
| 2097 | release_firmware(ucode_raw); |
| 2098 | |
| 2099 | error: |
| 2100 | return ret; |
| 2101 | } |
| 2102 | |
| 2103 | |
| 2104 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2105 | * il3945_set_ucode_ptrs - Set uCode address location |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2106 | * |
| 2107 | * Tell initialization uCode where to find runtime uCode. |
| 2108 | * |
| 2109 | * BSM registers initially contain pointers to initialization uCode. |
| 2110 | * We need to replace them to load runtime uCode inst and data, |
| 2111 | * and to save runtime data when powering down. |
| 2112 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2113 | static int il3945_set_ucode_ptrs(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2114 | { |
| 2115 | dma_addr_t pinst; |
| 2116 | dma_addr_t pdata; |
| 2117 | |
| 2118 | /* bits 31:0 for 3945 */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2119 | pinst = il->ucode_code.p_addr; |
| 2120 | pdata = il->ucode_data_backup.p_addr; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2121 | |
| 2122 | /* Tell bootstrap uCode where to find image to load */ |
Stanislaw Gruszka | db54eb5 | 2011-08-24 21:06:33 +0200 | [diff] [blame] | 2123 | il_wr_prph(il, BSM_DRAM_INST_PTR_REG, pinst); |
| 2124 | il_wr_prph(il, BSM_DRAM_DATA_PTR_REG, pdata); |
| 2125 | il_wr_prph(il, BSM_DRAM_DATA_BYTECOUNT_REG, |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2126 | il->ucode_data.len); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2127 | |
| 2128 | /* Inst byte count must be last to set up, bit 31 signals uCode |
| 2129 | * that all new ptr/size info is in place */ |
Stanislaw Gruszka | db54eb5 | 2011-08-24 21:06:33 +0200 | [diff] [blame] | 2130 | il_wr_prph(il, BSM_DRAM_INST_BYTECOUNT_REG, |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2131 | il->ucode_code.len | BSM_DRAM_INST_LOAD); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2132 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2133 | D_INFO("Runtime uCode pointers are set.\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2134 | |
| 2135 | return 0; |
| 2136 | } |
| 2137 | |
| 2138 | /** |
Stanislaw Gruszka | 4d69c75 | 2011-08-30 15:26:35 +0200 | [diff] [blame] | 2139 | * il3945_init_alive_start - Called after N_ALIVE notification received |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2140 | * |
Stanislaw Gruszka | 4d69c75 | 2011-08-30 15:26:35 +0200 | [diff] [blame] | 2141 | * Called after N_ALIVE notification received from "initialize" uCode. |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2142 | * |
| 2143 | * Tell "initialize" uCode to go ahead and load the runtime uCode. |
| 2144 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2145 | static void il3945_init_alive_start(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2146 | { |
| 2147 | /* Check alive response for "valid" sign from uCode */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2148 | if (il->card_alive_init.is_valid != UCODE_VALID_OK) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2149 | /* We had an error bringing up the hardware, so take it |
| 2150 | * all the way back down so we can try again */ |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2151 | D_INFO("Initialize Alive failed.\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2152 | goto restart; |
| 2153 | } |
| 2154 | |
| 2155 | /* Bootstrap uCode has loaded initialize uCode ... verify inst image. |
| 2156 | * This is a paranoid check, because we would not have gotten the |
| 2157 | * "initialize" alive if code weren't properly loaded. */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2158 | if (il3945_verify_ucode(il)) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2159 | /* Runtime instruction load was bad; |
| 2160 | * take it all the way back down so we can try again */ |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2161 | D_INFO("Bad \"initialize\" uCode load.\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2162 | goto restart; |
| 2163 | } |
| 2164 | |
| 2165 | /* Send pointers to protocol/runtime uCode image ... init code will |
| 2166 | * load and launch runtime uCode, which will send us another "Alive" |
| 2167 | * notification. */ |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2168 | D_INFO("Initialization Alive received.\n"); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2169 | if (il3945_set_ucode_ptrs(il)) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2170 | /* Runtime instruction load won't happen; |
| 2171 | * take it all the way back down so we can try again */ |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2172 | D_INFO("Couldn't set up uCode pointers.\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2173 | goto restart; |
| 2174 | } |
| 2175 | return; |
| 2176 | |
| 2177 | restart: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2178 | queue_work(il->workqueue, &il->restart); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2179 | } |
| 2180 | |
| 2181 | /** |
Stanislaw Gruszka | 4d69c75 | 2011-08-30 15:26:35 +0200 | [diff] [blame] | 2182 | * il3945_alive_start - called after N_ALIVE notification received |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2183 | * from protocol/runtime uCode (initialization uCode's |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2184 | * Alive gets handled by il3945_init_alive_start()). |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2185 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2186 | static void il3945_alive_start(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2187 | { |
| 2188 | int thermal_spin = 0; |
| 2189 | u32 rfkill; |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 2190 | struct il_rxon_context *ctx = &il->ctx; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2191 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2192 | D_INFO("Runtime Alive received.\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2193 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2194 | if (il->card_alive.is_valid != UCODE_VALID_OK) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2195 | /* We had an error bringing up the hardware, so take it |
| 2196 | * all the way back down so we can try again */ |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2197 | D_INFO("Alive failed.\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2198 | goto restart; |
| 2199 | } |
| 2200 | |
| 2201 | /* Initialize uCode has loaded Runtime uCode ... verify inst image. |
| 2202 | * This is a paranoid check, because we would not have gotten the |
| 2203 | * "runtime" alive if code weren't properly loaded. */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2204 | if (il3945_verify_ucode(il)) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2205 | /* Runtime instruction load was bad; |
| 2206 | * take it all the way back down so we can try again */ |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2207 | D_INFO("Bad runtime uCode load.\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2208 | goto restart; |
| 2209 | } |
| 2210 | |
Stanislaw Gruszka | db54eb5 | 2011-08-24 21:06:33 +0200 | [diff] [blame] | 2211 | rfkill = il_rd_prph(il, APMG_RFKILL_REG); |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2212 | D_INFO("RFKILL status: 0x%x\n", rfkill); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2213 | |
| 2214 | if (rfkill & 0x1) { |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2215 | clear_bit(S_RF_KILL_HW, &il->status); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2216 | /* if RFKILL is not on, then wait for thermal |
| 2217 | * sensor in adapter to kick in */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2218 | while (il3945_hw_get_temperature(il) == 0) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2219 | thermal_spin++; |
| 2220 | udelay(10); |
| 2221 | } |
| 2222 | |
| 2223 | if (thermal_spin) |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2224 | D_INFO("Thermal calibration took %dus\n", |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2225 | thermal_spin * 10); |
| 2226 | } else |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2227 | set_bit(S_RF_KILL_HW, &il->status); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2228 | |
| 2229 | /* After the ALIVE response, we can send commands to 3945 uCode */ |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2230 | set_bit(S_ALIVE, &il->status); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2231 | |
| 2232 | /* Enable watchdog to monitor the driver tx queues */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2233 | il_setup_watchdog(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2234 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2235 | if (il_is_rfkill(il)) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2236 | return; |
| 2237 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2238 | ieee80211_wake_queues(il->hw); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2239 | |
Stanislaw Gruszka | 2eb0581 | 2011-08-26 16:07:43 +0200 | [diff] [blame] | 2240 | il->active_rate = RATES_MASK_3945; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2241 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2242 | il_power_update_mode(il, true); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2243 | |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 2244 | if (il_is_associated(il)) { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2245 | struct il3945_rxon_cmd *active_rxon = |
| 2246 | (struct il3945_rxon_cmd *)(&ctx->active); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2247 | |
| 2248 | ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK; |
| 2249 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
| 2250 | } else { |
| 2251 | /* Initialize our rx_config data */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2252 | il_connection_init_rx_config(il, ctx); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2253 | } |
| 2254 | |
| 2255 | /* Configure Bluetooth device coexistence support */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2256 | il_send_bt_config(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2257 | |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2258 | set_bit(S_READY, &il->status); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2259 | |
| 2260 | /* Configure the adapter for unassociated operation */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2261 | il3945_commit_rxon(il, ctx); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2262 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2263 | il3945_reg_txpower_periodic(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2264 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2265 | D_INFO("ALIVE processing complete.\n"); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2266 | wake_up(&il->wait_command_queue); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2267 | |
| 2268 | return; |
| 2269 | |
| 2270 | restart: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2271 | queue_work(il->workqueue, &il->restart); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2272 | } |
| 2273 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2274 | static void il3945_cancel_deferred_work(struct il_priv *il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2275 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2276 | static void __il3945_down(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2277 | { |
| 2278 | unsigned long flags; |
| 2279 | int exit_pending; |
| 2280 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2281 | D_INFO(DRV_NAME " is going down\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2282 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2283 | il_scan_cancel_timeout(il, 200); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2284 | |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2285 | exit_pending = test_and_set_bit(S_EXIT_PENDING, &il->status); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2286 | |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2287 | /* Stop TX queues watchdog. We need to have S_EXIT_PENDING bit set |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2288 | * to prevent rearm timer */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2289 | del_timer_sync(&il->watchdog); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2290 | |
| 2291 | /* Station information will now be cleared in device */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2292 | il_clear_ucode_stations(il, NULL); |
| 2293 | il_dealloc_bcast_stations(il); |
| 2294 | il_clear_driver_stations(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2295 | |
| 2296 | /* Unblock any waiting calls */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2297 | wake_up_all(&il->wait_command_queue); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2298 | |
| 2299 | /* Wipe out the EXIT_PENDING status bit if we are not actually |
| 2300 | * exiting the module */ |
| 2301 | if (!exit_pending) |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2302 | clear_bit(S_EXIT_PENDING, &il->status); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2303 | |
| 2304 | /* stop and reset the on-board processor */ |
Stanislaw Gruszka | 841b2cc | 2011-08-24 15:14:03 +0200 | [diff] [blame] | 2305 | _il_wr(il, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2306 | |
| 2307 | /* tell the device to stop sending interrupts */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2308 | spin_lock_irqsave(&il->lock, flags); |
| 2309 | il_disable_interrupts(il); |
| 2310 | spin_unlock_irqrestore(&il->lock, flags); |
| 2311 | il3945_synchronize_irq(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2312 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2313 | if (il->mac80211_registered) |
| 2314 | ieee80211_stop_queues(il->hw); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2315 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2316 | /* If we have not previously called il3945_init() then |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2317 | * clear all bits but the RF Kill bits and return */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2318 | if (!il_is_init(il)) { |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2319 | il->status = test_bit(S_RF_KILL_HW, &il->status) << |
| 2320 | S_RF_KILL_HW | |
| 2321 | test_bit(S_GEO_CONFIGURED, &il->status) << |
| 2322 | S_GEO_CONFIGURED | |
| 2323 | test_bit(S_EXIT_PENDING, &il->status) << |
| 2324 | S_EXIT_PENDING; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2325 | goto exit; |
| 2326 | } |
| 2327 | |
| 2328 | /* ...otherwise clear out all the status bits but the RF Kill |
| 2329 | * bit and continue taking the NIC down. */ |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2330 | il->status &= test_bit(S_RF_KILL_HW, &il->status) << |
| 2331 | S_RF_KILL_HW | |
| 2332 | test_bit(S_GEO_CONFIGURED, &il->status) << |
| 2333 | S_GEO_CONFIGURED | |
| 2334 | test_bit(S_FW_ERROR, &il->status) << |
| 2335 | S_FW_ERROR | |
| 2336 | test_bit(S_EXIT_PENDING, &il->status) << |
| 2337 | S_EXIT_PENDING; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2338 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2339 | il3945_hw_txq_ctx_stop(il); |
| 2340 | il3945_hw_rxq_stop(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2341 | |
| 2342 | /* Power-down device's busmaster DMA clocks */ |
Stanislaw Gruszka | db54eb5 | 2011-08-24 21:06:33 +0200 | [diff] [blame] | 2343 | il_wr_prph(il, APMG_CLK_DIS_REG, APMG_CLK_VAL_DMA_CLK_RQT); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2344 | udelay(5); |
| 2345 | |
| 2346 | /* Stop the device, and put it in low power state */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2347 | il_apm_stop(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2348 | |
| 2349 | exit: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2350 | memset(&il->card_alive, 0, sizeof(struct il_alive_resp)); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2351 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2352 | if (il->beacon_skb) |
| 2353 | dev_kfree_skb(il->beacon_skb); |
| 2354 | il->beacon_skb = NULL; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2355 | |
| 2356 | /* clear out any free frames */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2357 | il3945_clear_free_frames(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2358 | } |
| 2359 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2360 | static void il3945_down(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2361 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2362 | mutex_lock(&il->mutex); |
| 2363 | __il3945_down(il); |
| 2364 | mutex_unlock(&il->mutex); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2365 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2366 | il3945_cancel_deferred_work(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2367 | } |
| 2368 | |
| 2369 | #define MAX_HW_RESTARTS 5 |
| 2370 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2371 | static int il3945_alloc_bcast_station(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2372 | { |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 2373 | struct il_rxon_context *ctx = &il->ctx; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2374 | unsigned long flags; |
| 2375 | u8 sta_id; |
| 2376 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2377 | spin_lock_irqsave(&il->sta_lock, flags); |
| 2378 | sta_id = il_prep_station(il, ctx, |
Stanislaw Gruszka | d2ddf62 | 2011-08-16 14:17:04 +0200 | [diff] [blame] | 2379 | il_bcast_addr, false, NULL); |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2380 | if (sta_id == IL_INVALID_STATION) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 2381 | IL_ERR("Unable to prepare broadcast station\n"); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2382 | spin_unlock_irqrestore(&il->sta_lock, flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2383 | |
| 2384 | return -EINVAL; |
| 2385 | } |
| 2386 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2387 | il->stations[sta_id].used |= IL_STA_DRIVER_ACTIVE; |
| 2388 | il->stations[sta_id].used |= IL_STA_BCAST; |
| 2389 | spin_unlock_irqrestore(&il->sta_lock, flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2390 | |
| 2391 | return 0; |
| 2392 | } |
| 2393 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2394 | static int __il3945_up(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2395 | { |
| 2396 | int rc, i; |
| 2397 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2398 | rc = il3945_alloc_bcast_station(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2399 | if (rc) |
| 2400 | return rc; |
| 2401 | |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2402 | if (test_bit(S_EXIT_PENDING, &il->status)) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 2403 | IL_WARN("Exit pending; will not bring the NIC up\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2404 | return -EIO; |
| 2405 | } |
| 2406 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2407 | if (!il->ucode_data_backup.v_addr || !il->ucode_data.v_addr) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 2408 | IL_ERR("ucode not available for device bring up\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2409 | return -EIO; |
| 2410 | } |
| 2411 | |
| 2412 | /* If platform's RF_KILL switch is NOT set to KILL */ |
Stanislaw Gruszka | 841b2cc | 2011-08-24 15:14:03 +0200 | [diff] [blame] | 2413 | if (_il_rd(il, CSR_GP_CNTRL) & |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2414 | CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2415 | clear_bit(S_RF_KILL_HW, &il->status); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2416 | else { |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2417 | set_bit(S_RF_KILL_HW, &il->status); |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 2418 | IL_WARN("Radio disabled by HW RF Kill switch\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2419 | return -ENODEV; |
| 2420 | } |
| 2421 | |
Stanislaw Gruszka | 841b2cc | 2011-08-24 15:14:03 +0200 | [diff] [blame] | 2422 | _il_wr(il, CSR_INT, 0xFFFFFFFF); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2423 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2424 | rc = il3945_hw_nic_init(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2425 | if (rc) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 2426 | IL_ERR("Unable to int nic\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2427 | return rc; |
| 2428 | } |
| 2429 | |
| 2430 | /* make sure rfkill handshake bits are cleared */ |
Stanislaw Gruszka | 841b2cc | 2011-08-24 15:14:03 +0200 | [diff] [blame] | 2431 | _il_wr(il, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
| 2432 | _il_wr(il, CSR_UCODE_DRV_GP1_CLR, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2433 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
| 2434 | |
| 2435 | /* clear (again), then enable host interrupts */ |
Stanislaw Gruszka | 841b2cc | 2011-08-24 15:14:03 +0200 | [diff] [blame] | 2436 | _il_wr(il, CSR_INT, 0xFFFFFFFF); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2437 | il_enable_interrupts(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2438 | |
| 2439 | /* really make sure rfkill handshake bits are cleared */ |
Stanislaw Gruszka | 841b2cc | 2011-08-24 15:14:03 +0200 | [diff] [blame] | 2440 | _il_wr(il, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
| 2441 | _il_wr(il, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2442 | |
| 2443 | /* Copy original ucode data image from disk into backup cache. |
| 2444 | * This will be used to initialize the on-board processor's |
| 2445 | * data SRAM for a clean start when the runtime program first loads. */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2446 | memcpy(il->ucode_data_backup.v_addr, il->ucode_data.v_addr, |
| 2447 | il->ucode_data.len); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2448 | |
| 2449 | /* We return success when we resume from suspend and rf_kill is on. */ |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2450 | if (test_bit(S_RF_KILL_HW, &il->status)) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2451 | return 0; |
| 2452 | |
| 2453 | for (i = 0; i < MAX_HW_RESTARTS; i++) { |
| 2454 | |
| 2455 | /* load bootstrap state machine, |
| 2456 | * load bootstrap program into processor's memory, |
| 2457 | * prepare to load the "initialize" uCode */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2458 | rc = il->cfg->ops->lib->load_ucode(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2459 | |
| 2460 | if (rc) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 2461 | IL_ERR( |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2462 | "Unable to set up bootstrap uCode: %d\n", rc); |
| 2463 | continue; |
| 2464 | } |
| 2465 | |
| 2466 | /* start card; "initialize" will load runtime ucode */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2467 | il3945_nic_start(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2468 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2469 | D_INFO(DRV_NAME " is coming up\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2470 | |
| 2471 | return 0; |
| 2472 | } |
| 2473 | |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2474 | set_bit(S_EXIT_PENDING, &il->status); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2475 | __il3945_down(il); |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2476 | clear_bit(S_EXIT_PENDING, &il->status); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2477 | |
| 2478 | /* tried to restart and config the device for as long as our |
| 2479 | * patience could withstand */ |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 2480 | IL_ERR("Unable to initialize device after %d attempts.\n", i); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2481 | return -EIO; |
| 2482 | } |
| 2483 | |
| 2484 | |
| 2485 | /***************************************************************************** |
| 2486 | * |
| 2487 | * Workqueue callbacks |
| 2488 | * |
| 2489 | *****************************************************************************/ |
| 2490 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2491 | static void il3945_bg_init_alive_start(struct work_struct *data) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2492 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2493 | struct il_priv *il = |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2494 | container_of(data, struct il_priv, init_alive_start.work); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2495 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2496 | mutex_lock(&il->mutex); |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2497 | if (test_bit(S_EXIT_PENDING, &il->status)) |
Stanislaw Gruszka | 28a6e57 | 2011-04-28 11:51:32 +0200 | [diff] [blame] | 2498 | goto out; |
| 2499 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2500 | il3945_init_alive_start(il); |
Stanislaw Gruszka | 28a6e57 | 2011-04-28 11:51:32 +0200 | [diff] [blame] | 2501 | out: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2502 | mutex_unlock(&il->mutex); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2503 | } |
| 2504 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2505 | static void il3945_bg_alive_start(struct work_struct *data) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2506 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2507 | struct il_priv *il = |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2508 | container_of(data, struct il_priv, alive_start.work); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2509 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2510 | mutex_lock(&il->mutex); |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2511 | if (test_bit(S_EXIT_PENDING, &il->status)) |
Stanislaw Gruszka | 28a6e57 | 2011-04-28 11:51:32 +0200 | [diff] [blame] | 2512 | goto out; |
| 2513 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2514 | il3945_alive_start(il); |
Stanislaw Gruszka | 28a6e57 | 2011-04-28 11:51:32 +0200 | [diff] [blame] | 2515 | out: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2516 | mutex_unlock(&il->mutex); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2517 | } |
| 2518 | |
| 2519 | /* |
| 2520 | * 3945 cannot interrupt driver when hardware rf kill switch toggles; |
| 2521 | * driver must poll CSR_GP_CNTRL_REG register for change. This register |
| 2522 | * *is* readable even when device has been SW_RESET into low power mode |
| 2523 | * (e.g. during RF KILL). |
| 2524 | */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2525 | static void il3945_rfkill_poll(struct work_struct *data) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2526 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2527 | struct il_priv *il = |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2528 | container_of(data, struct il_priv, _3945.rfkill_poll.work); |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2529 | bool old_rfkill = test_bit(S_RF_KILL_HW, &il->status); |
Stanislaw Gruszka | 841b2cc | 2011-08-24 15:14:03 +0200 | [diff] [blame] | 2530 | bool new_rfkill = !(_il_rd(il, CSR_GP_CNTRL) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2531 | & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW); |
| 2532 | |
| 2533 | if (new_rfkill != old_rfkill) { |
| 2534 | if (new_rfkill) |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2535 | set_bit(S_RF_KILL_HW, &il->status); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2536 | else |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2537 | clear_bit(S_RF_KILL_HW, &il->status); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2538 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2539 | wiphy_rfkill_set_hw_state(il->hw->wiphy, new_rfkill); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2540 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2541 | D_RF_KILL("RF_KILL bit toggled to %s.\n", |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2542 | new_rfkill ? "disable radio" : "enable radio"); |
| 2543 | } |
| 2544 | |
| 2545 | /* Keep this running, even if radio now enabled. This will be |
| 2546 | * cancelled in mac_start() if system decides to start again */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2547 | queue_delayed_work(il->workqueue, &il->_3945.rfkill_poll, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2548 | round_jiffies_relative(2 * HZ)); |
| 2549 | |
| 2550 | } |
| 2551 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2552 | int il3945_request_scan(struct il_priv *il, struct ieee80211_vif *vif) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2553 | { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2554 | struct il_host_cmd cmd = { |
Stanislaw Gruszka | 4d69c75 | 2011-08-30 15:26:35 +0200 | [diff] [blame] | 2555 | .id = C_SCAN, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2556 | .len = sizeof(struct il3945_scan_cmd), |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2557 | .flags = CMD_SIZE_HUGE, |
| 2558 | }; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2559 | struct il3945_scan_cmd *scan; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2560 | u8 n_probes = 0; |
| 2561 | enum ieee80211_band band; |
| 2562 | bool is_active = false; |
| 2563 | int ret; |
Stanislaw Gruszka | dd6d2a8 | 2011-06-08 15:28:26 +0200 | [diff] [blame] | 2564 | u16 len; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2565 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2566 | lockdep_assert_held(&il->mutex); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2567 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2568 | if (!il->scan_cmd) { |
| 2569 | il->scan_cmd = kmalloc(sizeof(struct il3945_scan_cmd) + |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2570 | IL_MAX_SCAN_SIZE, GFP_KERNEL); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2571 | if (!il->scan_cmd) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2572 | D_SCAN("Fail to allocate scan memory\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2573 | return -ENOMEM; |
| 2574 | } |
| 2575 | } |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2576 | scan = il->scan_cmd; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2577 | memset(scan, 0, sizeof(struct il3945_scan_cmd) + IL_MAX_SCAN_SIZE); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2578 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2579 | scan->quiet_plcp_th = IL_PLCP_QUIET_THRESH; |
| 2580 | scan->quiet_time = IL_ACTIVE_QUIET_TIME; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2581 | |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 2582 | if (il_is_associated(il)) { |
Stanislaw Gruszka | dd6d2a8 | 2011-06-08 15:28:26 +0200 | [diff] [blame] | 2583 | u16 interval; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2584 | u32 extra; |
| 2585 | u32 suspend_time = 100; |
| 2586 | u32 scan_suspend_time = 100; |
| 2587 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2588 | D_INFO("Scanning while associated...\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2589 | |
Stanislaw Gruszka | dd6d2a8 | 2011-06-08 15:28:26 +0200 | [diff] [blame] | 2590 | interval = vif->bss_conf.beacon_int; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2591 | |
| 2592 | scan->suspend_time = 0; |
| 2593 | scan->max_out_time = cpu_to_le32(200 * 1024); |
| 2594 | if (!interval) |
| 2595 | interval = suspend_time; |
| 2596 | /* |
| 2597 | * suspend time format: |
| 2598 | * 0-19: beacon interval in usec (time before exec.) |
| 2599 | * 20-23: 0 |
| 2600 | * 24-31: number of beacons (suspend between channels) |
| 2601 | */ |
| 2602 | |
| 2603 | extra = (suspend_time / interval) << 24; |
| 2604 | scan_suspend_time = 0xFF0FFFFF & |
| 2605 | (extra | ((suspend_time % interval) * 1024)); |
| 2606 | |
| 2607 | scan->suspend_time = cpu_to_le32(scan_suspend_time); |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2608 | D_SCAN("suspend_time 0x%X beacon interval %d\n", |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2609 | scan_suspend_time, interval); |
| 2610 | } |
| 2611 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2612 | if (il->scan_request->n_ssids) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2613 | int i, p = 0; |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2614 | D_SCAN("Kicking off active scan\n"); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2615 | for (i = 0; i < il->scan_request->n_ssids; i++) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2616 | /* always does wildcard anyway */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2617 | if (!il->scan_request->ssids[i].ssid_len) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2618 | continue; |
| 2619 | scan->direct_scan[p].id = WLAN_EID_SSID; |
| 2620 | scan->direct_scan[p].len = |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2621 | il->scan_request->ssids[i].ssid_len; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2622 | memcpy(scan->direct_scan[p].ssid, |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2623 | il->scan_request->ssids[i].ssid, |
| 2624 | il->scan_request->ssids[i].ssid_len); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2625 | n_probes++; |
| 2626 | p++; |
| 2627 | } |
| 2628 | is_active = true; |
| 2629 | } else |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2630 | D_SCAN("Kicking off passive scan.\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2631 | |
| 2632 | /* We don't build a direct scan probe request; the uCode will do |
| 2633 | * that based on the direct_mask added to each channel entry */ |
| 2634 | scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK; |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 2635 | scan->tx_cmd.sta_id = il->ctx.bcast_sta_id; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2636 | scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; |
| 2637 | |
| 2638 | /* flags + rate selection */ |
| 2639 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2640 | switch (il->scan_band) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2641 | case IEEE80211_BAND_2GHZ: |
| 2642 | scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK; |
Stanislaw Gruszka | 2eb0581 | 2011-08-26 16:07:43 +0200 | [diff] [blame] | 2643 | scan->tx_cmd.rate = RATE_1M_PLCP; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2644 | band = IEEE80211_BAND_2GHZ; |
| 2645 | break; |
| 2646 | case IEEE80211_BAND_5GHZ: |
Stanislaw Gruszka | 2eb0581 | 2011-08-26 16:07:43 +0200 | [diff] [blame] | 2647 | scan->tx_cmd.rate = RATE_6M_PLCP; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2648 | band = IEEE80211_BAND_5GHZ; |
| 2649 | break; |
| 2650 | default: |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 2651 | IL_WARN("Invalid scan band\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2652 | return -EIO; |
| 2653 | } |
| 2654 | |
| 2655 | /* |
| 2656 | * If active scaning is requested but a certain channel |
| 2657 | * is marked passive, we can do active scanning if we |
| 2658 | * detect transmissions. |
| 2659 | */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2660 | scan->good_CRC_th = is_active ? IL_GOOD_CRC_TH_DEFAULT : |
| 2661 | IL_GOOD_CRC_TH_DISABLED; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2662 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2663 | len = il_fill_probe_req(il, (struct ieee80211_mgmt *)scan->data, |
| 2664 | vif->addr, il->scan_request->ie, |
| 2665 | il->scan_request->ie_len, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2666 | IL_MAX_SCAN_SIZE - sizeof(*scan)); |
Stanislaw Gruszka | dd6d2a8 | 2011-06-08 15:28:26 +0200 | [diff] [blame] | 2667 | scan->tx_cmd.len = cpu_to_le16(len); |
| 2668 | |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2669 | /* select Rx antennas */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2670 | scan->flags |= il3945_get_antenna_flags(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2671 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2672 | scan->channel_count = il3945_get_channels_for_scan(il, band, is_active, n_probes, |
Stanislaw Gruszka | dd6d2a8 | 2011-06-08 15:28:26 +0200 | [diff] [blame] | 2673 | (void *)&scan->data[len], vif); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2674 | if (scan->channel_count == 0) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2675 | D_SCAN("channel count %d\n", scan->channel_count); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2676 | return -EIO; |
| 2677 | } |
| 2678 | |
| 2679 | cmd.len += le16_to_cpu(scan->tx_cmd.len) + |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2680 | scan->channel_count * sizeof(struct il3945_scan_channel); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2681 | cmd.data = scan; |
| 2682 | scan->len = cpu_to_le16(cmd.len); |
| 2683 | |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2684 | set_bit(S_SCAN_HW, &il->status); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2685 | ret = il_send_cmd_sync(il, &cmd); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2686 | if (ret) |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2687 | clear_bit(S_SCAN_HW, &il->status); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2688 | return ret; |
| 2689 | } |
| 2690 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2691 | void il3945_post_scan(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2692 | { |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 2693 | struct il_rxon_context *ctx = &il->ctx; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2694 | |
| 2695 | /* |
| 2696 | * Since setting the RXON may have been deferred while |
| 2697 | * performing the scan, fire one off if needed |
| 2698 | */ |
| 2699 | if (memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging))) |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2700 | il3945_commit_rxon(il, ctx); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2701 | } |
| 2702 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2703 | static void il3945_bg_restart(struct work_struct *data) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2704 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2705 | struct il_priv *il = container_of(data, struct il_priv, restart); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2706 | |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2707 | if (test_bit(S_EXIT_PENDING, &il->status)) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2708 | return; |
| 2709 | |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2710 | if (test_and_clear_bit(S_FW_ERROR, &il->status)) { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2711 | mutex_lock(&il->mutex); |
Stanislaw Gruszka | 17d6e55 | 2011-08-29 12:52:20 +0200 | [diff] [blame] | 2712 | il->ctx.vif = NULL; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2713 | il->is_open = 0; |
| 2714 | mutex_unlock(&il->mutex); |
| 2715 | il3945_down(il); |
| 2716 | ieee80211_restart_hw(il->hw); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2717 | } else { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2718 | il3945_down(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2719 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2720 | mutex_lock(&il->mutex); |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2721 | if (test_bit(S_EXIT_PENDING, &il->status)) { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2722 | mutex_unlock(&il->mutex); |
Stanislaw Gruszka | 28a6e57 | 2011-04-28 11:51:32 +0200 | [diff] [blame] | 2723 | return; |
| 2724 | } |
| 2725 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2726 | __il3945_up(il); |
| 2727 | mutex_unlock(&il->mutex); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2728 | } |
| 2729 | } |
| 2730 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2731 | static void il3945_bg_rx_replenish(struct work_struct *data) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2732 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2733 | struct il_priv *il = |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2734 | container_of(data, struct il_priv, rx_replenish); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2735 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2736 | mutex_lock(&il->mutex); |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2737 | if (test_bit(S_EXIT_PENDING, &il->status)) |
Stanislaw Gruszka | 28a6e57 | 2011-04-28 11:51:32 +0200 | [diff] [blame] | 2738 | goto out; |
| 2739 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2740 | il3945_rx_replenish(il); |
Stanislaw Gruszka | 28a6e57 | 2011-04-28 11:51:32 +0200 | [diff] [blame] | 2741 | out: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2742 | mutex_unlock(&il->mutex); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2743 | } |
| 2744 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2745 | void il3945_post_associate(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2746 | { |
| 2747 | int rc = 0; |
| 2748 | struct ieee80211_conf *conf = NULL; |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 2749 | struct il_rxon_context *ctx = &il->ctx; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2750 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2751 | if (!ctx->vif || !il->is_open) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2752 | return; |
| 2753 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2754 | D_ASSOC("Associated as %d to: %pM\n", |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2755 | ctx->vif->bss_conf.aid, ctx->active.bssid_addr); |
| 2756 | |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2757 | if (test_bit(S_EXIT_PENDING, &il->status)) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2758 | return; |
| 2759 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2760 | il_scan_cancel_timeout(il, 200); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2761 | |
Stanislaw Gruszka | 6278dda | 2011-08-31 11:13:05 +0200 | [diff] [blame^] | 2762 | conf = &il->hw->conf; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2763 | |
| 2764 | ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2765 | il3945_commit_rxon(il, ctx); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2766 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2767 | rc = il_send_rxon_timing(il, ctx); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2768 | if (rc) |
Stanislaw Gruszka | 4d69c75 | 2011-08-30 15:26:35 +0200 | [diff] [blame] | 2769 | IL_WARN("C_RXON_TIMING failed - " |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2770 | "Attempting to continue.\n"); |
| 2771 | |
| 2772 | ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK; |
| 2773 | |
| 2774 | ctx->staging.assoc_id = cpu_to_le16(ctx->vif->bss_conf.aid); |
| 2775 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2776 | D_ASSOC("assoc id %d beacon interval %d\n", |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2777 | ctx->vif->bss_conf.aid, ctx->vif->bss_conf.beacon_int); |
| 2778 | |
| 2779 | if (ctx->vif->bss_conf.use_short_preamble) |
| 2780 | ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; |
| 2781 | else |
| 2782 | ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; |
| 2783 | |
| 2784 | if (ctx->staging.flags & RXON_FLG_BAND_24G_MSK) { |
| 2785 | if (ctx->vif->bss_conf.use_short_slot) |
| 2786 | ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK; |
| 2787 | else |
| 2788 | ctx->staging.flags &= ~RXON_FLG_SHORT_SLOT_MSK; |
| 2789 | } |
| 2790 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2791 | il3945_commit_rxon(il, ctx); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2792 | |
| 2793 | switch (ctx->vif->type) { |
| 2794 | case NL80211_IFTYPE_STATION: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2795 | il3945_rate_scale_init(il->hw, IL_AP_ID); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2796 | break; |
| 2797 | case NL80211_IFTYPE_ADHOC: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2798 | il3945_send_beacon_cmd(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2799 | break; |
| 2800 | default: |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 2801 | IL_ERR("%s Should not be called in %d mode\n", |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2802 | __func__, ctx->vif->type); |
| 2803 | break; |
| 2804 | } |
| 2805 | } |
| 2806 | |
| 2807 | /***************************************************************************** |
| 2808 | * |
| 2809 | * mac80211 entry point functions |
| 2810 | * |
| 2811 | *****************************************************************************/ |
| 2812 | |
| 2813 | #define UCODE_READY_TIMEOUT (2 * HZ) |
| 2814 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2815 | static int il3945_mac_start(struct ieee80211_hw *hw) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2816 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2817 | struct il_priv *il = hw->priv; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2818 | int ret; |
| 2819 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2820 | D_MAC80211("enter\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2821 | |
| 2822 | /* we should be verifying the device is ready to be opened */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2823 | mutex_lock(&il->mutex); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2824 | |
| 2825 | /* fetch ucode file from disk, alloc and copy to bus-master buffers ... |
| 2826 | * ucode filename and max sizes are card-specific. */ |
| 2827 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2828 | if (!il->ucode_code.len) { |
| 2829 | ret = il3945_read_ucode(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2830 | if (ret) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 2831 | IL_ERR("Could not read microcode: %d\n", ret); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2832 | mutex_unlock(&il->mutex); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2833 | goto out_release_irq; |
| 2834 | } |
| 2835 | } |
| 2836 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2837 | ret = __il3945_up(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2838 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2839 | mutex_unlock(&il->mutex); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2840 | |
| 2841 | if (ret) |
| 2842 | goto out_release_irq; |
| 2843 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2844 | D_INFO("Start UP work.\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2845 | |
| 2846 | /* Wait for START_ALIVE from ucode. Otherwise callbacks from |
| 2847 | * mac80211 will not be run successfully. */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2848 | ret = wait_event_timeout(il->wait_command_queue, |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2849 | test_bit(S_READY, &il->status), |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2850 | UCODE_READY_TIMEOUT); |
| 2851 | if (!ret) { |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2852 | if (!test_bit(S_READY, &il->status)) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 2853 | IL_ERR( |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2854 | "Wait for START_ALIVE timeout after %dms.\n", |
| 2855 | jiffies_to_msecs(UCODE_READY_TIMEOUT)); |
| 2856 | ret = -ETIMEDOUT; |
| 2857 | goto out_release_irq; |
| 2858 | } |
| 2859 | } |
| 2860 | |
| 2861 | /* ucode is running and will send rfkill notifications, |
| 2862 | * no need to poll the killswitch state anymore */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2863 | cancel_delayed_work(&il->_3945.rfkill_poll); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2864 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2865 | il->is_open = 1; |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2866 | D_MAC80211("leave\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2867 | return 0; |
| 2868 | |
| 2869 | out_release_irq: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2870 | il->is_open = 0; |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2871 | D_MAC80211("leave - failed\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2872 | return ret; |
| 2873 | } |
| 2874 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2875 | static void il3945_mac_stop(struct ieee80211_hw *hw) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2876 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2877 | struct il_priv *il = hw->priv; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2878 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2879 | D_MAC80211("enter\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2880 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2881 | if (!il->is_open) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2882 | D_MAC80211("leave - skip\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2883 | return; |
| 2884 | } |
| 2885 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2886 | il->is_open = 0; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2887 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2888 | il3945_down(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2889 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2890 | flush_workqueue(il->workqueue); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2891 | |
| 2892 | /* start polling the killswitch state again */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2893 | queue_delayed_work(il->workqueue, &il->_3945.rfkill_poll, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2894 | round_jiffies_relative(2 * HZ)); |
| 2895 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2896 | D_MAC80211("leave\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2897 | } |
| 2898 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2899 | static void il3945_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2900 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2901 | struct il_priv *il = hw->priv; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2902 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2903 | D_MAC80211("enter\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2904 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2905 | D_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2906 | ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate); |
| 2907 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2908 | if (il3945_tx_skb(il, skb)) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2909 | dev_kfree_skb_any(skb); |
| 2910 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2911 | D_MAC80211("leave\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2912 | } |
| 2913 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2914 | void il3945_config_ap(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2915 | { |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 2916 | struct il_rxon_context *ctx = &il->ctx; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2917 | struct ieee80211_vif *vif = ctx->vif; |
| 2918 | int rc = 0; |
| 2919 | |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2920 | if (test_bit(S_EXIT_PENDING, &il->status)) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2921 | return; |
| 2922 | |
| 2923 | /* The following should be done only at AP bring up */ |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 2924 | if (!(il_is_associated(il))) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2925 | |
| 2926 | /* RXON - unassoc (to set timing command) */ |
| 2927 | ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2928 | il3945_commit_rxon(il, ctx); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2929 | |
| 2930 | /* RXON Timing */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2931 | rc = il_send_rxon_timing(il, ctx); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2932 | if (rc) |
Stanislaw Gruszka | 4d69c75 | 2011-08-30 15:26:35 +0200 | [diff] [blame] | 2933 | IL_WARN("C_RXON_TIMING failed - " |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2934 | "Attempting to continue.\n"); |
| 2935 | |
| 2936 | ctx->staging.assoc_id = 0; |
| 2937 | |
| 2938 | if (vif->bss_conf.use_short_preamble) |
| 2939 | ctx->staging.flags |= |
| 2940 | RXON_FLG_SHORT_PREAMBLE_MSK; |
| 2941 | else |
| 2942 | ctx->staging.flags &= |
| 2943 | ~RXON_FLG_SHORT_PREAMBLE_MSK; |
| 2944 | |
| 2945 | if (ctx->staging.flags & RXON_FLG_BAND_24G_MSK) { |
| 2946 | if (vif->bss_conf.use_short_slot) |
| 2947 | ctx->staging.flags |= |
| 2948 | RXON_FLG_SHORT_SLOT_MSK; |
| 2949 | else |
| 2950 | ctx->staging.flags &= |
| 2951 | ~RXON_FLG_SHORT_SLOT_MSK; |
| 2952 | } |
| 2953 | /* restore RXON assoc */ |
| 2954 | ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2955 | il3945_commit_rxon(il, ctx); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2956 | } |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2957 | il3945_send_beacon_cmd(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2958 | } |
| 2959 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2960 | static int il3945_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2961 | struct ieee80211_vif *vif, |
| 2962 | struct ieee80211_sta *sta, |
| 2963 | struct ieee80211_key_conf *key) |
| 2964 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2965 | struct il_priv *il = hw->priv; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2966 | int ret = 0; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2967 | u8 sta_id = IL_INVALID_STATION; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2968 | u8 static_key; |
| 2969 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2970 | D_MAC80211("enter\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2971 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2972 | if (il3945_mod_params.sw_crypto) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2973 | D_MAC80211("leave - hwcrypto disabled\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2974 | return -EOPNOTSUPP; |
| 2975 | } |
| 2976 | |
| 2977 | /* |
| 2978 | * To support IBSS RSN, don't program group keys in IBSS, the |
| 2979 | * hardware will then not attempt to decrypt the frames. |
| 2980 | */ |
| 2981 | if (vif->type == NL80211_IFTYPE_ADHOC && |
| 2982 | !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) |
| 2983 | return -EOPNOTSUPP; |
| 2984 | |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 2985 | static_key = !il_is_associated(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2986 | |
| 2987 | if (!static_key) { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2988 | sta_id = il_sta_id_or_broadcast( |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 2989 | il, &il->ctx, sta); |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2990 | if (sta_id == IL_INVALID_STATION) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2991 | return -EINVAL; |
| 2992 | } |
| 2993 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2994 | mutex_lock(&il->mutex); |
| 2995 | il_scan_cancel_timeout(il, 100); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2996 | |
| 2997 | switch (cmd) { |
| 2998 | case SET_KEY: |
| 2999 | if (static_key) |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3000 | ret = il3945_set_static_key(il, key); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3001 | else |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3002 | ret = il3945_set_dynamic_key(il, key, sta_id); |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 3003 | D_MAC80211("enable hwcrypto key\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3004 | break; |
| 3005 | case DISABLE_KEY: |
| 3006 | if (static_key) |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3007 | ret = il3945_remove_static_key(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3008 | else |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3009 | ret = il3945_clear_sta_key_info(il, sta_id); |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 3010 | D_MAC80211("disable hwcrypto key\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3011 | break; |
| 3012 | default: |
| 3013 | ret = -EINVAL; |
| 3014 | } |
| 3015 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3016 | mutex_unlock(&il->mutex); |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 3017 | D_MAC80211("leave\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3018 | |
| 3019 | return ret; |
| 3020 | } |
| 3021 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3022 | static int il3945_mac_sta_add(struct ieee80211_hw *hw, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3023 | struct ieee80211_vif *vif, |
| 3024 | struct ieee80211_sta *sta) |
| 3025 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3026 | struct il_priv *il = hw->priv; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3027 | struct il3945_sta_priv *sta_priv = (void *)sta->drv_priv; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3028 | int ret; |
| 3029 | bool is_ap = vif->type == NL80211_IFTYPE_STATION; |
| 3030 | u8 sta_id; |
| 3031 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 3032 | D_INFO("received request to add station %pM\n", |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3033 | sta->addr); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3034 | mutex_lock(&il->mutex); |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 3035 | D_INFO("proceeding to add station %pM\n", |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3036 | sta->addr); |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3037 | sta_priv->common.sta_id = IL_INVALID_STATION; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3038 | |
| 3039 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3040 | ret = il_add_station_common(il, |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 3041 | &il->ctx, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3042 | sta->addr, is_ap, sta, &sta_id); |
| 3043 | if (ret) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 3044 | IL_ERR("Unable to add station %pM (%d)\n", |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3045 | sta->addr, ret); |
| 3046 | /* Should we return success if return code is EEXIST ? */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3047 | mutex_unlock(&il->mutex); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3048 | return ret; |
| 3049 | } |
| 3050 | |
| 3051 | sta_priv->common.sta_id = sta_id; |
| 3052 | |
| 3053 | /* Initialize rate scaling */ |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 3054 | D_INFO("Initializing rate scaling for station %pM\n", |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3055 | sta->addr); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3056 | il3945_rs_rate_init(il, sta, sta_id); |
| 3057 | mutex_unlock(&il->mutex); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3058 | |
| 3059 | return 0; |
| 3060 | } |
| 3061 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3062 | static void il3945_configure_filter(struct ieee80211_hw *hw, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3063 | unsigned int changed_flags, |
| 3064 | unsigned int *total_flags, |
| 3065 | u64 multicast) |
| 3066 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3067 | struct il_priv *il = hw->priv; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3068 | __le32 filter_or = 0, filter_nand = 0; |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 3069 | struct il_rxon_context *ctx = &il->ctx; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3070 | |
| 3071 | #define CHK(test, flag) do { \ |
| 3072 | if (*total_flags & (test)) \ |
| 3073 | filter_or |= (flag); \ |
| 3074 | else \ |
| 3075 | filter_nand |= (flag); \ |
| 3076 | } while (0) |
| 3077 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 3078 | D_MAC80211("Enter: changed: 0x%x, total: 0x%x\n", |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3079 | changed_flags, *total_flags); |
| 3080 | |
| 3081 | CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK); |
| 3082 | CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK); |
| 3083 | CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK); |
| 3084 | |
| 3085 | #undef CHK |
| 3086 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3087 | mutex_lock(&il->mutex); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3088 | |
| 3089 | ctx->staging.filter_flags &= ~filter_nand; |
| 3090 | ctx->staging.filter_flags |= filter_or; |
| 3091 | |
| 3092 | /* |
| 3093 | * Not committing directly because hardware can perform a scan, |
| 3094 | * but even if hw is ready, committing here breaks for some reason, |
| 3095 | * we'll eventually commit the filter flags change anyway. |
| 3096 | */ |
| 3097 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3098 | mutex_unlock(&il->mutex); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3099 | |
| 3100 | /* |
| 3101 | * Receiving all multicast frames is always enabled by the |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3102 | * default flags setup in il_connection_init_rx_config() |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3103 | * since we currently do not support programming multicast |
| 3104 | * filters into the device. |
| 3105 | */ |
| 3106 | *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS | |
| 3107 | FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL; |
| 3108 | } |
| 3109 | |
| 3110 | |
| 3111 | /***************************************************************************** |
| 3112 | * |
| 3113 | * sysfs attributes |
| 3114 | * |
| 3115 | *****************************************************************************/ |
| 3116 | |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 3117 | #ifdef CONFIG_IWLEGACY_DEBUG |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3118 | |
| 3119 | /* |
| 3120 | * The following adds a new attribute to the sysfs representation |
| 3121 | * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/) |
| 3122 | * used for controlling the debug level. |
| 3123 | * |
| 3124 | * See the level definitions in iwl for details. |
| 3125 | * |
| 3126 | * The debug_level being managed using sysfs below is a per device debug |
| 3127 | * level that is used instead of the global debug level if it (the per |
| 3128 | * device debug level) is set. |
| 3129 | */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3130 | static ssize_t il3945_show_debug_level(struct device *d, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3131 | struct device_attribute *attr, char *buf) |
| 3132 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3133 | struct il_priv *il = dev_get_drvdata(d); |
| 3134 | return sprintf(buf, "0x%08X\n", il_get_debug_level(il)); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3135 | } |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3136 | static ssize_t il3945_store_debug_level(struct device *d, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3137 | struct device_attribute *attr, |
| 3138 | const char *buf, size_t count) |
| 3139 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3140 | struct il_priv *il = dev_get_drvdata(d); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3141 | unsigned long val; |
| 3142 | int ret; |
| 3143 | |
| 3144 | ret = strict_strtoul(buf, 0, &val); |
| 3145 | if (ret) |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 3146 | IL_INFO("%s is not in hex or decimal form.\n", buf); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3147 | else { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3148 | il->debug_level = val; |
| 3149 | if (il_alloc_traffic_mem(il)) |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 3150 | IL_ERR( |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3151 | "Not enough memory to generate traffic log\n"); |
| 3152 | } |
| 3153 | return strnlen(buf, count); |
| 3154 | } |
| 3155 | |
| 3156 | static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3157 | il3945_show_debug_level, il3945_store_debug_level); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3158 | |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 3159 | #endif /* CONFIG_IWLEGACY_DEBUG */ |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3160 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3161 | static ssize_t il3945_show_temperature(struct device *d, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3162 | struct device_attribute *attr, char *buf) |
| 3163 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3164 | struct il_priv *il = dev_get_drvdata(d); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3165 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3166 | if (!il_is_alive(il)) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3167 | return -EAGAIN; |
| 3168 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3169 | return sprintf(buf, "%d\n", il3945_hw_get_temperature(il)); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3170 | } |
| 3171 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3172 | static DEVICE_ATTR(temperature, S_IRUGO, il3945_show_temperature, NULL); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3173 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3174 | static ssize_t il3945_show_tx_power(struct device *d, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3175 | struct device_attribute *attr, char *buf) |
| 3176 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3177 | struct il_priv *il = dev_get_drvdata(d); |
| 3178 | return sprintf(buf, "%d\n", il->tx_power_user_lmt); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3179 | } |
| 3180 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3181 | static ssize_t il3945_store_tx_power(struct device *d, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3182 | struct device_attribute *attr, |
| 3183 | const char *buf, size_t count) |
| 3184 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3185 | struct il_priv *il = dev_get_drvdata(d); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3186 | char *p = (char *)buf; |
| 3187 | u32 val; |
| 3188 | |
| 3189 | val = simple_strtoul(p, &p, 10); |
| 3190 | if (p == buf) |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 3191 | IL_INFO(": %s is not in decimal form.\n", buf); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3192 | else |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3193 | il3945_hw_reg_set_txpower(il, val); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3194 | |
| 3195 | return count; |
| 3196 | } |
| 3197 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3198 | static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, il3945_show_tx_power, il3945_store_tx_power); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3199 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3200 | static ssize_t il3945_show_flags(struct device *d, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3201 | struct device_attribute *attr, char *buf) |
| 3202 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3203 | struct il_priv *il = dev_get_drvdata(d); |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 3204 | struct il_rxon_context *ctx = &il->ctx; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3205 | |
| 3206 | return sprintf(buf, "0x%04X\n", ctx->active.flags); |
| 3207 | } |
| 3208 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3209 | static ssize_t il3945_store_flags(struct device *d, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3210 | struct device_attribute *attr, |
| 3211 | const char *buf, size_t count) |
| 3212 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3213 | struct il_priv *il = dev_get_drvdata(d); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3214 | u32 flags = simple_strtoul(buf, NULL, 0); |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 3215 | struct il_rxon_context *ctx = &il->ctx; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3216 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3217 | mutex_lock(&il->mutex); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3218 | if (le32_to_cpu(ctx->staging.flags) != flags) { |
| 3219 | /* Cancel any currently running scans... */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3220 | if (il_scan_cancel_timeout(il, 100)) |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 3221 | IL_WARN("Could not cancel scan.\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3222 | else { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 3223 | D_INFO("Committing rxon.flags = 0x%04X\n", |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3224 | flags); |
| 3225 | ctx->staging.flags = cpu_to_le32(flags); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3226 | il3945_commit_rxon(il, ctx); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3227 | } |
| 3228 | } |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3229 | mutex_unlock(&il->mutex); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3230 | |
| 3231 | return count; |
| 3232 | } |
| 3233 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3234 | static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, il3945_show_flags, il3945_store_flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3235 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3236 | static ssize_t il3945_show_filter_flags(struct device *d, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3237 | struct device_attribute *attr, char *buf) |
| 3238 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3239 | struct il_priv *il = dev_get_drvdata(d); |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 3240 | struct il_rxon_context *ctx = &il->ctx; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3241 | |
| 3242 | return sprintf(buf, "0x%04X\n", |
| 3243 | le32_to_cpu(ctx->active.filter_flags)); |
| 3244 | } |
| 3245 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3246 | static ssize_t il3945_store_filter_flags(struct device *d, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3247 | struct device_attribute *attr, |
| 3248 | const char *buf, size_t count) |
| 3249 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3250 | struct il_priv *il = dev_get_drvdata(d); |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 3251 | struct il_rxon_context *ctx = &il->ctx; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3252 | u32 filter_flags = simple_strtoul(buf, NULL, 0); |
| 3253 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3254 | mutex_lock(&il->mutex); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3255 | if (le32_to_cpu(ctx->staging.filter_flags) != filter_flags) { |
| 3256 | /* Cancel any currently running scans... */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3257 | if (il_scan_cancel_timeout(il, 100)) |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 3258 | IL_WARN("Could not cancel scan.\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3259 | else { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 3260 | D_INFO("Committing rxon.filter_flags = " |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3261 | "0x%04X\n", filter_flags); |
| 3262 | ctx->staging.filter_flags = |
| 3263 | cpu_to_le32(filter_flags); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3264 | il3945_commit_rxon(il, ctx); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3265 | } |
| 3266 | } |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3267 | mutex_unlock(&il->mutex); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3268 | |
| 3269 | return count; |
| 3270 | } |
| 3271 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3272 | static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, il3945_show_filter_flags, |
| 3273 | il3945_store_filter_flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3274 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3275 | static ssize_t il3945_show_measurement(struct device *d, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3276 | struct device_attribute *attr, char *buf) |
| 3277 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3278 | struct il_priv *il = dev_get_drvdata(d); |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3279 | struct il_spectrum_notification measure_report; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3280 | u32 size = sizeof(measure_report), len = 0, ofs = 0; |
| 3281 | u8 *data = (u8 *)&measure_report; |
| 3282 | unsigned long flags; |
| 3283 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3284 | spin_lock_irqsave(&il->lock, flags); |
| 3285 | if (!(il->measurement_status & MEASUREMENT_READY)) { |
| 3286 | spin_unlock_irqrestore(&il->lock, flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3287 | return 0; |
| 3288 | } |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3289 | memcpy(&measure_report, &il->measure_report, size); |
| 3290 | il->measurement_status = 0; |
| 3291 | spin_unlock_irqrestore(&il->lock, flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3292 | |
Stanislaw Gruszka | 232913b | 2011-08-26 10:45:16 +0200 | [diff] [blame] | 3293 | while (size && PAGE_SIZE - len) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3294 | hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len, |
| 3295 | PAGE_SIZE - len, 1); |
| 3296 | len = strlen(buf); |
| 3297 | if (PAGE_SIZE - len) |
| 3298 | buf[len++] = '\n'; |
| 3299 | |
| 3300 | ofs += 16; |
| 3301 | size -= min(size, 16U); |
| 3302 | } |
| 3303 | |
| 3304 | return len; |
| 3305 | } |
| 3306 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3307 | static ssize_t il3945_store_measurement(struct device *d, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3308 | struct device_attribute *attr, |
| 3309 | const char *buf, size_t count) |
| 3310 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3311 | struct il_priv *il = dev_get_drvdata(d); |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 3312 | struct il_rxon_context *ctx = &il->ctx; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3313 | struct ieee80211_measurement_params params = { |
| 3314 | .channel = le16_to_cpu(ctx->active.channel), |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3315 | .start_time = cpu_to_le64(il->_3945.last_tsf), |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3316 | .duration = cpu_to_le16(1), |
| 3317 | }; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3318 | u8 type = IL_MEASURE_BASIC; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3319 | u8 buffer[32]; |
| 3320 | u8 channel; |
| 3321 | |
| 3322 | if (count) { |
| 3323 | char *p = buffer; |
| 3324 | strncpy(buffer, buf, min(sizeof(buffer), count)); |
| 3325 | channel = simple_strtoul(p, NULL, 0); |
| 3326 | if (channel) |
| 3327 | params.channel = channel; |
| 3328 | |
| 3329 | p = buffer; |
| 3330 | while (*p && *p != ' ') |
| 3331 | p++; |
| 3332 | if (*p) |
| 3333 | type = simple_strtoul(p + 1, NULL, 0); |
| 3334 | } |
| 3335 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 3336 | D_INFO("Invoking measurement of type %d on " |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3337 | "channel %d (for '%s')\n", type, params.channel, buf); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3338 | il3945_get_measurement(il, ¶ms, type); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3339 | |
| 3340 | return count; |
| 3341 | } |
| 3342 | |
| 3343 | static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3344 | il3945_show_measurement, il3945_store_measurement); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3345 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3346 | static ssize_t il3945_store_retry_rate(struct device *d, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3347 | struct device_attribute *attr, |
| 3348 | const char *buf, size_t count) |
| 3349 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3350 | struct il_priv *il = dev_get_drvdata(d); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3351 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3352 | il->retry_rate = simple_strtoul(buf, NULL, 0); |
| 3353 | if (il->retry_rate <= 0) |
| 3354 | il->retry_rate = 1; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3355 | |
| 3356 | return count; |
| 3357 | } |
| 3358 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3359 | static ssize_t il3945_show_retry_rate(struct device *d, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3360 | struct device_attribute *attr, char *buf) |
| 3361 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3362 | struct il_priv *il = dev_get_drvdata(d); |
| 3363 | return sprintf(buf, "%d", il->retry_rate); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3364 | } |
| 3365 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3366 | static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, il3945_show_retry_rate, |
| 3367 | il3945_store_retry_rate); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3368 | |
| 3369 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3370 | static ssize_t il3945_show_channels(struct device *d, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3371 | struct device_attribute *attr, char *buf) |
| 3372 | { |
| 3373 | /* all this shit doesn't belong into sysfs anyway */ |
| 3374 | return 0; |
| 3375 | } |
| 3376 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3377 | static DEVICE_ATTR(channels, S_IRUSR, il3945_show_channels, NULL); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3378 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3379 | static ssize_t il3945_show_antenna(struct device *d, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3380 | struct device_attribute *attr, char *buf) |
| 3381 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3382 | struct il_priv *il = dev_get_drvdata(d); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3383 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3384 | if (!il_is_alive(il)) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3385 | return -EAGAIN; |
| 3386 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3387 | return sprintf(buf, "%d\n", il3945_mod_params.antenna); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3388 | } |
| 3389 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3390 | static ssize_t il3945_store_antenna(struct device *d, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3391 | struct device_attribute *attr, |
| 3392 | const char *buf, size_t count) |
| 3393 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3394 | struct il_priv *il __maybe_unused = dev_get_drvdata(d); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3395 | int ant; |
| 3396 | |
| 3397 | if (count == 0) |
| 3398 | return 0; |
| 3399 | |
| 3400 | if (sscanf(buf, "%1i", &ant) != 1) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 3401 | D_INFO("not in hex or decimal form.\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3402 | return count; |
| 3403 | } |
| 3404 | |
Stanislaw Gruszka | 232913b | 2011-08-26 10:45:16 +0200 | [diff] [blame] | 3405 | if (ant >= 0 && ant <= 2) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 3406 | D_INFO("Setting antenna select to %d.\n", ant); |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3407 | il3945_mod_params.antenna = (enum il3945_antenna)ant; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3408 | } else |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 3409 | D_INFO("Bad antenna select value %d.\n", ant); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3410 | |
| 3411 | |
| 3412 | return count; |
| 3413 | } |
| 3414 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3415 | static DEVICE_ATTR(antenna, S_IWUSR | S_IRUGO, il3945_show_antenna, il3945_store_antenna); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3416 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3417 | static ssize_t il3945_show_status(struct device *d, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3418 | struct device_attribute *attr, char *buf) |
| 3419 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3420 | struct il_priv *il = dev_get_drvdata(d); |
| 3421 | if (!il_is_alive(il)) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3422 | return -EAGAIN; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3423 | return sprintf(buf, "0x%08x\n", (int)il->status); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3424 | } |
| 3425 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3426 | static DEVICE_ATTR(status, S_IRUGO, il3945_show_status, NULL); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3427 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3428 | static ssize_t il3945_dump_error_log(struct device *d, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3429 | struct device_attribute *attr, |
| 3430 | const char *buf, size_t count) |
| 3431 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3432 | struct il_priv *il = dev_get_drvdata(d); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3433 | char *p = (char *)buf; |
| 3434 | |
| 3435 | if (p[0] == '1') |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3436 | il3945_dump_nic_error_log(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3437 | |
| 3438 | return strnlen(buf, count); |
| 3439 | } |
| 3440 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3441 | static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, il3945_dump_error_log); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3442 | |
| 3443 | /***************************************************************************** |
| 3444 | * |
| 3445 | * driver setup and tear down |
| 3446 | * |
| 3447 | *****************************************************************************/ |
| 3448 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3449 | static void il3945_setup_deferred_work(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3450 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3451 | il->workqueue = create_singlethread_workqueue(DRV_NAME); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3452 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3453 | init_waitqueue_head(&il->wait_command_queue); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3454 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3455 | INIT_WORK(&il->restart, il3945_bg_restart); |
| 3456 | INIT_WORK(&il->rx_replenish, il3945_bg_rx_replenish); |
| 3457 | INIT_DELAYED_WORK(&il->init_alive_start, il3945_bg_init_alive_start); |
| 3458 | INIT_DELAYED_WORK(&il->alive_start, il3945_bg_alive_start); |
| 3459 | INIT_DELAYED_WORK(&il->_3945.rfkill_poll, il3945_rfkill_poll); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3460 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3461 | il_setup_scan_deferred_work(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3462 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3463 | il3945_hw_setup_deferred_work(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3464 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3465 | init_timer(&il->watchdog); |
| 3466 | il->watchdog.data = (unsigned long)il; |
| 3467 | il->watchdog.function = il_bg_watchdog; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3468 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3469 | tasklet_init(&il->irq_tasklet, (void (*)(unsigned long)) |
| 3470 | il3945_irq_tasklet, (unsigned long)il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3471 | } |
| 3472 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3473 | static void il3945_cancel_deferred_work(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3474 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3475 | il3945_hw_cancel_deferred_work(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3476 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3477 | cancel_delayed_work_sync(&il->init_alive_start); |
| 3478 | cancel_delayed_work(&il->alive_start); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3479 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3480 | il_cancel_scan_deferred_work(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3481 | } |
| 3482 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3483 | static struct attribute *il3945_sysfs_entries[] = { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3484 | &dev_attr_antenna.attr, |
| 3485 | &dev_attr_channels.attr, |
| 3486 | &dev_attr_dump_errors.attr, |
| 3487 | &dev_attr_flags.attr, |
| 3488 | &dev_attr_filter_flags.attr, |
| 3489 | &dev_attr_measurement.attr, |
| 3490 | &dev_attr_retry_rate.attr, |
| 3491 | &dev_attr_status.attr, |
| 3492 | &dev_attr_temperature.attr, |
| 3493 | &dev_attr_tx_power.attr, |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 3494 | #ifdef CONFIG_IWLEGACY_DEBUG |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3495 | &dev_attr_debug_level.attr, |
| 3496 | #endif |
| 3497 | NULL |
| 3498 | }; |
| 3499 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3500 | static struct attribute_group il3945_attribute_group = { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3501 | .name = NULL, /* put in device directory */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3502 | .attrs = il3945_sysfs_entries, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3503 | }; |
| 3504 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3505 | struct ieee80211_ops il3945_hw_ops = { |
| 3506 | .tx = il3945_mac_tx, |
| 3507 | .start = il3945_mac_start, |
| 3508 | .stop = il3945_mac_stop, |
| 3509 | .add_interface = il_mac_add_interface, |
| 3510 | .remove_interface = il_mac_remove_interface, |
| 3511 | .change_interface = il_mac_change_interface, |
| 3512 | .config = il_mac_config, |
| 3513 | .configure_filter = il3945_configure_filter, |
| 3514 | .set_key = il3945_mac_set_key, |
| 3515 | .conf_tx = il_mac_conf_tx, |
| 3516 | .reset_tsf = il_mac_reset_tsf, |
| 3517 | .bss_info_changed = il_mac_bss_info_changed, |
| 3518 | .hw_scan = il_mac_hw_scan, |
| 3519 | .sta_add = il3945_mac_sta_add, |
| 3520 | .sta_remove = il_mac_sta_remove, |
| 3521 | .tx_last_beacon = il_mac_tx_last_beacon, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3522 | }; |
| 3523 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3524 | static int il3945_init_drv(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3525 | { |
| 3526 | int ret; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3527 | struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3528 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3529 | il->retry_rate = 1; |
| 3530 | il->beacon_skb = NULL; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3531 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3532 | spin_lock_init(&il->sta_lock); |
| 3533 | spin_lock_init(&il->hcmd_lock); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3534 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3535 | INIT_LIST_HEAD(&il->free_frames); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3536 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3537 | mutex_init(&il->mutex); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3538 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3539 | il->ieee_channels = NULL; |
| 3540 | il->ieee_rates = NULL; |
| 3541 | il->band = IEEE80211_BAND_2GHZ; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3542 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3543 | il->iw_mode = NL80211_IFTYPE_STATION; |
| 3544 | il->missed_beacon_threshold = IL_MISSED_BEACON_THRESHOLD_DEF; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3545 | |
| 3546 | /* initialize force reset */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3547 | il->force_reset.reset_duration = IL_DELAY_NEXT_FORCE_FW_RELOAD; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3548 | |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3549 | if (eeprom->version < EEPROM_3945_EEPROM_VERSION) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 3550 | IL_WARN("Unsupported EEPROM version: 0x%04X\n", |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3551 | eeprom->version); |
| 3552 | ret = -EINVAL; |
| 3553 | goto err; |
| 3554 | } |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3555 | ret = il_init_channel_map(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3556 | if (ret) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 3557 | IL_ERR("initializing regulatory failed: %d\n", ret); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3558 | goto err; |
| 3559 | } |
| 3560 | |
| 3561 | /* Set up txpower settings in driver for all channels */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3562 | if (il3945_txpower_set_from_eeprom(il)) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3563 | ret = -EIO; |
| 3564 | goto err_free_channel_map; |
| 3565 | } |
| 3566 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3567 | ret = il_init_geos(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3568 | if (ret) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 3569 | IL_ERR("initializing geos failed: %d\n", ret); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3570 | goto err_free_channel_map; |
| 3571 | } |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3572 | il3945_init_hw_rates(il, il->ieee_rates); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3573 | |
| 3574 | return 0; |
| 3575 | |
| 3576 | err_free_channel_map: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3577 | il_free_channel_map(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3578 | err: |
| 3579 | return ret; |
| 3580 | } |
| 3581 | |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 3582 | #define IL3945_MAX_PROBE_REQUEST 200 |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3583 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3584 | static int il3945_setup_mac(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3585 | { |
| 3586 | int ret; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3587 | struct ieee80211_hw *hw = il->hw; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3588 | |
| 3589 | hw->rate_control_algorithm = "iwl-3945-rs"; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3590 | hw->sta_data_size = sizeof(struct il3945_sta_priv); |
| 3591 | hw->vif_data_size = sizeof(struct il_vif_priv); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3592 | |
| 3593 | /* Tell mac80211 our characteristics */ |
| 3594 | hw->flags = IEEE80211_HW_SIGNAL_DBM | |
| 3595 | IEEE80211_HW_SPECTRUM_MGMT; |
| 3596 | |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3597 | hw->wiphy->interface_modes = |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 3598 | il->ctx.interface_modes; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3599 | |
| 3600 | hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY | |
| 3601 | WIPHY_FLAG_DISABLE_BEACON_HINTS | |
| 3602 | WIPHY_FLAG_IBSS_RSN; |
| 3603 | |
| 3604 | hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX_3945; |
| 3605 | /* we create the 802.11 header and a zero-length SSID element */ |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 3606 | hw->wiphy->max_scan_ie_len = IL3945_MAX_PROBE_REQUEST - 24 - 2; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3607 | |
| 3608 | /* Default value; 4 EDCA QOS priorities */ |
| 3609 | hw->queues = 4; |
| 3610 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3611 | if (il->bands[IEEE80211_BAND_2GHZ].n_channels) |
| 3612 | il->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = |
| 3613 | &il->bands[IEEE80211_BAND_2GHZ]; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3614 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3615 | if (il->bands[IEEE80211_BAND_5GHZ].n_channels) |
| 3616 | il->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = |
| 3617 | &il->bands[IEEE80211_BAND_5GHZ]; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3618 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3619 | il_leds_init(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3620 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3621 | ret = ieee80211_register_hw(il->hw); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3622 | if (ret) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 3623 | IL_ERR("Failed to register hw (error %d)\n", ret); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3624 | return ret; |
| 3625 | } |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3626 | il->mac80211_registered = 1; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3627 | |
| 3628 | return 0; |
| 3629 | } |
| 3630 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3631 | static int il3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3632 | { |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 3633 | int err = 0; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3634 | struct il_priv *il; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3635 | struct ieee80211_hw *hw; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3636 | struct il_cfg *cfg = (struct il_cfg *)(ent->driver_data); |
| 3637 | struct il3945_eeprom *eeprom; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3638 | unsigned long flags; |
| 3639 | |
| 3640 | /*********************** |
| 3641 | * 1. Allocating HW data |
| 3642 | * ********************/ |
| 3643 | |
| 3644 | /* mac80211 allocates memory for this device instance, including |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3645 | * space for this driver's ilate structure */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3646 | hw = il_alloc_all(cfg); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3647 | if (hw == NULL) { |
| 3648 | pr_err("Can not allocate network device\n"); |
| 3649 | err = -ENOMEM; |
| 3650 | goto out; |
| 3651 | } |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3652 | il = hw->priv; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3653 | SET_IEEE80211_DEV(hw, &pdev->dev); |
| 3654 | |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 3655 | il->cmd_queue = IL39_CMD_QUEUE_NUM; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3656 | |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 3657 | il->ctx.ctxid = 0; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3658 | |
Stanislaw Gruszka | 4d69c75 | 2011-08-30 15:26:35 +0200 | [diff] [blame] | 3659 | il->ctx.rxon_cmd = C_RXON; |
| 3660 | il->ctx.rxon_timing_cmd = C_RXON_TIMING; |
| 3661 | il->ctx.rxon_assoc_cmd = C_RXON_ASSOC; |
| 3662 | il->ctx.qos_cmd = C_QOS_PARAM; |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 3663 | il->ctx.ap_sta_id = IL_AP_ID; |
Stanislaw Gruszka | 4d69c75 | 2011-08-30 15:26:35 +0200 | [diff] [blame] | 3664 | il->ctx.wep_key_cmd = C_WEPKEY; |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 3665 | il->ctx.interface_modes = |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3666 | BIT(NL80211_IFTYPE_STATION) | |
| 3667 | BIT(NL80211_IFTYPE_ADHOC); |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 3668 | il->ctx.ibss_devtype = RXON_DEV_TYPE_IBSS; |
| 3669 | il->ctx.station_devtype = RXON_DEV_TYPE_ESS; |
| 3670 | il->ctx.unused_devtype = RXON_DEV_TYPE_ESS; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3671 | |
| 3672 | /* |
| 3673 | * Disabling hardware scan means that mac80211 will perform scans |
| 3674 | * "the hard way", rather than using device's scan. |
| 3675 | */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3676 | if (il3945_mod_params.disable_hw_scan) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 3677 | D_INFO("Disabling hw_scan\n"); |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3678 | il3945_hw_ops.hw_scan = NULL; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3679 | } |
| 3680 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 3681 | D_INFO("*** LOAD DRIVER ***\n"); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3682 | il->cfg = cfg; |
| 3683 | il->pci_dev = pdev; |
| 3684 | il->inta_mask = CSR_INI_SET_MASK; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3685 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3686 | if (il_alloc_traffic_mem(il)) |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 3687 | IL_ERR("Not enough memory to generate traffic log\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3688 | |
| 3689 | /*************************** |
| 3690 | * 2. Initializing PCI bus |
| 3691 | * *************************/ |
| 3692 | pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 | |
| 3693 | PCIE_LINK_STATE_CLKPM); |
| 3694 | |
| 3695 | if (pci_enable_device(pdev)) { |
| 3696 | err = -ENODEV; |
| 3697 | goto out_ieee80211_free_hw; |
| 3698 | } |
| 3699 | |
| 3700 | pci_set_master(pdev); |
| 3701 | |
| 3702 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
| 3703 | if (!err) |
| 3704 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); |
| 3705 | if (err) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 3706 | IL_WARN("No suitable DMA available.\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3707 | goto out_pci_disable_device; |
| 3708 | } |
| 3709 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3710 | pci_set_drvdata(pdev, il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3711 | err = pci_request_regions(pdev, DRV_NAME); |
| 3712 | if (err) |
| 3713 | goto out_pci_disable_device; |
| 3714 | |
| 3715 | /*********************** |
| 3716 | * 3. Read REV Register |
| 3717 | * ********************/ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3718 | il->hw_base = pci_iomap(pdev, 0, 0); |
| 3719 | if (!il->hw_base) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3720 | err = -ENODEV; |
| 3721 | goto out_pci_release_regions; |
| 3722 | } |
| 3723 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 3724 | D_INFO("pci_resource_len = 0x%08llx\n", |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3725 | (unsigned long long) pci_resource_len(pdev, 0)); |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 3726 | D_INFO("pci_resource_base = %p\n", il->hw_base); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3727 | |
| 3728 | /* We disable the RETRY_TIMEOUT register (0x41) to keep |
| 3729 | * PCI Tx retries from interfering with C3 CPU state */ |
| 3730 | pci_write_config_byte(pdev, 0x41, 0x00); |
| 3731 | |
| 3732 | /* these spin locks will be used in apm_ops.init and EEPROM access |
| 3733 | * we should init now |
| 3734 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3735 | spin_lock_init(&il->reg_lock); |
| 3736 | spin_lock_init(&il->lock); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3737 | |
| 3738 | /* |
| 3739 | * stop and reset the on-board processor just in case it is in a |
| 3740 | * strange state ... like being left stranded by a primary kernel |
| 3741 | * and this is now the kdump kernel trying to start up |
| 3742 | */ |
Stanislaw Gruszka | 841b2cc | 2011-08-24 15:14:03 +0200 | [diff] [blame] | 3743 | _il_wr(il, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3744 | |
| 3745 | /*********************** |
| 3746 | * 4. Read EEPROM |
| 3747 | * ********************/ |
| 3748 | |
| 3749 | /* Read the EEPROM */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3750 | err = il_eeprom_init(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3751 | if (err) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 3752 | IL_ERR("Unable to init EEPROM\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3753 | goto out_iounmap; |
| 3754 | } |
| 3755 | /* MAC Address location in EEPROM same for 3945/4965 */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3756 | eeprom = (struct il3945_eeprom *)il->eeprom; |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 3757 | D_INFO("MAC address: %pM\n", eeprom->mac_address); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3758 | SET_IEEE80211_PERM_ADDR(il->hw, eeprom->mac_address); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3759 | |
| 3760 | /*********************** |
| 3761 | * 5. Setup HW Constants |
| 3762 | * ********************/ |
| 3763 | /* Device-specific setup */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3764 | if (il3945_hw_set_hw_params(il)) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 3765 | IL_ERR("failed to set hw settings\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3766 | goto out_eeprom_free; |
| 3767 | } |
| 3768 | |
| 3769 | /*********************** |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3770 | * 6. Setup il |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3771 | * ********************/ |
| 3772 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3773 | err = il3945_init_drv(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3774 | if (err) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 3775 | IL_ERR("initializing driver failed\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3776 | goto out_unset_hw_params; |
| 3777 | } |
| 3778 | |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 3779 | IL_INFO("Detected Intel Wireless WiFi Link %s\n", |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3780 | il->cfg->name); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3781 | |
| 3782 | /*********************** |
| 3783 | * 7. Setup Services |
| 3784 | * ********************/ |
| 3785 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3786 | spin_lock_irqsave(&il->lock, flags); |
| 3787 | il_disable_interrupts(il); |
| 3788 | spin_unlock_irqrestore(&il->lock, flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3789 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3790 | pci_enable_msi(il->pci_dev); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3791 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3792 | err = request_irq(il->pci_dev->irq, il_isr, |
| 3793 | IRQF_SHARED, DRV_NAME, il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3794 | if (err) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 3795 | IL_ERR("Error allocating IRQ %d\n", il->pci_dev->irq); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3796 | goto out_disable_msi; |
| 3797 | } |
| 3798 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3799 | err = sysfs_create_group(&pdev->dev.kobj, &il3945_attribute_group); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3800 | if (err) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 3801 | IL_ERR("failed to create sysfs device attributes\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3802 | goto out_release_irq; |
| 3803 | } |
| 3804 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3805 | il_set_rxon_channel(il, |
| 3806 | &il->bands[IEEE80211_BAND_2GHZ].channels[5], |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 3807 | &il->ctx); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3808 | il3945_setup_deferred_work(il); |
Stanislaw Gruszka | d0c7234 | 2011-08-30 15:39:42 +0200 | [diff] [blame] | 3809 | il3945_setup_handlers(il); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3810 | il_power_initialize(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3811 | |
| 3812 | /********************************* |
| 3813 | * 8. Setup and Register mac80211 |
| 3814 | * *******************************/ |
| 3815 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3816 | il_enable_interrupts(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3817 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3818 | err = il3945_setup_mac(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3819 | if (err) |
| 3820 | goto out_remove_sysfs; |
| 3821 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3822 | err = il_dbgfs_register(il, DRV_NAME); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3823 | if (err) |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 3824 | IL_ERR("failed to create debugfs files. Ignoring error: %d\n", err); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3825 | |
| 3826 | /* Start monitoring the killswitch */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3827 | queue_delayed_work(il->workqueue, &il->_3945.rfkill_poll, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3828 | 2 * HZ); |
| 3829 | |
| 3830 | return 0; |
| 3831 | |
| 3832 | out_remove_sysfs: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3833 | destroy_workqueue(il->workqueue); |
| 3834 | il->workqueue = NULL; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3835 | sysfs_remove_group(&pdev->dev.kobj, &il3945_attribute_group); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3836 | out_release_irq: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3837 | free_irq(il->pci_dev->irq, il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3838 | out_disable_msi: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3839 | pci_disable_msi(il->pci_dev); |
| 3840 | il_free_geos(il); |
| 3841 | il_free_channel_map(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3842 | out_unset_hw_params: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3843 | il3945_unset_hw_params(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3844 | out_eeprom_free: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3845 | il_eeprom_free(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3846 | out_iounmap: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3847 | pci_iounmap(pdev, il->hw_base); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3848 | out_pci_release_regions: |
| 3849 | pci_release_regions(pdev); |
| 3850 | out_pci_disable_device: |
| 3851 | pci_set_drvdata(pdev, NULL); |
| 3852 | pci_disable_device(pdev); |
| 3853 | out_ieee80211_free_hw: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3854 | il_free_traffic_mem(il); |
| 3855 | ieee80211_free_hw(il->hw); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3856 | out: |
| 3857 | return err; |
| 3858 | } |
| 3859 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3860 | static void __devexit il3945_pci_remove(struct pci_dev *pdev) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3861 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3862 | struct il_priv *il = pci_get_drvdata(pdev); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3863 | unsigned long flags; |
| 3864 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3865 | if (!il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3866 | return; |
| 3867 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 3868 | D_INFO("*** UNLOAD DRIVER ***\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3869 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3870 | il_dbgfs_unregister(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3871 | |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 3872 | set_bit(S_EXIT_PENDING, &il->status); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3873 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3874 | il_leds_exit(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3875 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3876 | if (il->mac80211_registered) { |
| 3877 | ieee80211_unregister_hw(il->hw); |
| 3878 | il->mac80211_registered = 0; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3879 | } else { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3880 | il3945_down(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3881 | } |
| 3882 | |
| 3883 | /* |
| 3884 | * Make sure device is reset to low power before unloading driver. |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3885 | * This may be redundant with il_down(), but there are paths to |
| 3886 | * run il_down() without calling apm_ops.stop(), and there are |
| 3887 | * paths to avoid running il_down() at all before leaving driver. |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3888 | * This (inexpensive) call *makes sure* device is reset. |
| 3889 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3890 | il_apm_stop(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3891 | |
| 3892 | /* make sure we flush any pending irq or |
| 3893 | * tasklet for the driver |
| 3894 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3895 | spin_lock_irqsave(&il->lock, flags); |
| 3896 | il_disable_interrupts(il); |
| 3897 | spin_unlock_irqrestore(&il->lock, flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3898 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3899 | il3945_synchronize_irq(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3900 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3901 | sysfs_remove_group(&pdev->dev.kobj, &il3945_attribute_group); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3902 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3903 | cancel_delayed_work_sync(&il->_3945.rfkill_poll); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3904 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3905 | il3945_dealloc_ucode_pci(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3906 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3907 | if (il->rxq.bd) |
| 3908 | il3945_rx_queue_free(il, &il->rxq); |
| 3909 | il3945_hw_txq_ctx_free(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3910 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3911 | il3945_unset_hw_params(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3912 | |
| 3913 | /*netif_stop_queue(dev); */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3914 | flush_workqueue(il->workqueue); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3915 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3916 | /* ieee80211_unregister_hw calls il3945_mac_stop, which flushes |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3917 | * il->workqueue... so we can't take down the workqueue |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3918 | * until now... */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3919 | destroy_workqueue(il->workqueue); |
| 3920 | il->workqueue = NULL; |
| 3921 | il_free_traffic_mem(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3922 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3923 | free_irq(pdev->irq, il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3924 | pci_disable_msi(pdev); |
| 3925 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3926 | pci_iounmap(pdev, il->hw_base); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3927 | pci_release_regions(pdev); |
| 3928 | pci_disable_device(pdev); |
| 3929 | pci_set_drvdata(pdev, NULL); |
| 3930 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3931 | il_free_channel_map(il); |
| 3932 | il_free_geos(il); |
| 3933 | kfree(il->scan_cmd); |
| 3934 | if (il->beacon_skb) |
| 3935 | dev_kfree_skb(il->beacon_skb); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3936 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3937 | ieee80211_free_hw(il->hw); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3938 | } |
| 3939 | |
| 3940 | |
| 3941 | /***************************************************************************** |
| 3942 | * |
| 3943 | * driver and module entry point |
| 3944 | * |
| 3945 | *****************************************************************************/ |
| 3946 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3947 | static struct pci_driver il3945_driver = { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3948 | .name = DRV_NAME, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3949 | .id_table = il3945_hw_card_ids, |
| 3950 | .probe = il3945_pci_probe, |
| 3951 | .remove = __devexit_p(il3945_pci_remove), |
| 3952 | .driver.pm = IL_LEGACY_PM_OPS, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3953 | }; |
| 3954 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3955 | static int __init il3945_init(void) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3956 | { |
| 3957 | |
| 3958 | int ret; |
| 3959 | pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n"); |
| 3960 | pr_info(DRV_COPYRIGHT "\n"); |
| 3961 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3962 | ret = il3945_rate_control_register(); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3963 | if (ret) { |
| 3964 | pr_err("Unable to register rate control algorithm: %d\n", ret); |
| 3965 | return ret; |
| 3966 | } |
| 3967 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3968 | ret = pci_register_driver(&il3945_driver); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3969 | if (ret) { |
| 3970 | pr_err("Unable to initialize PCI module\n"); |
| 3971 | goto error_register; |
| 3972 | } |
| 3973 | |
| 3974 | return ret; |
| 3975 | |
| 3976 | error_register: |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3977 | il3945_rate_control_unregister(); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3978 | return ret; |
| 3979 | } |
| 3980 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3981 | static void __exit il3945_exit(void) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3982 | { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3983 | pci_unregister_driver(&il3945_driver); |
| 3984 | il3945_rate_control_unregister(); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3985 | } |
| 3986 | |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 3987 | MODULE_FIRMWARE(IL3945_MODULE_FIRMWARE(IL3945_UCODE_API_MAX)); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3988 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3989 | module_param_named(antenna, il3945_mod_params.antenna, int, S_IRUGO); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3990 | MODULE_PARM_DESC(antenna, "select antenna (1=Main, 2=Aux, default 0 [both])"); |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3991 | module_param_named(swcrypto, il3945_mod_params.sw_crypto, int, S_IRUGO); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3992 | MODULE_PARM_DESC(swcrypto, |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 3993 | "using software crypto (default 1 [software])"); |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3994 | module_param_named(disable_hw_scan, il3945_mod_params.disable_hw_scan, |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 3995 | int, S_IRUGO); |
Stanislaw Gruszka | 0263aa4 | 2011-03-29 11:24:21 +0200 | [diff] [blame] | 3996 | MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 1)"); |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 3997 | #ifdef CONFIG_IWLEGACY_DEBUG |
Stanislaw Gruszka | d2ddf62 | 2011-08-16 14:17:04 +0200 | [diff] [blame] | 3998 | module_param_named(debug, il_debug_level, uint, S_IRUGO | S_IWUSR); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3999 | MODULE_PARM_DESC(debug, "debug output mask"); |
| 4000 | #endif |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 4001 | module_param_named(fw_restart, il3945_mod_params.restart_fw, int, S_IRUGO); |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 4002 | MODULE_PARM_DESC(fw_restart, "restart firmware in case of error"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 4003 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 4004 | module_exit(il3945_exit); |
| 4005 | module_init(il3945_init); |