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" |
Stanislaw Gruszka | 98613be | 2011-11-15 14:19:34 +0100 | [diff] [blame] | 55 | #include "common.h" |
Stanislaw Gruszka | e94a409 | 2011-08-31 13:23:20 +0200 | [diff] [blame] | 56 | #include "3945.h" |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 57 | #include "iwl-spectrum.h" |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 58 | |
| 59 | /* |
| 60 | * module name, copyright, version, etc. |
| 61 | */ |
| 62 | |
| 63 | #define DRV_DESCRIPTION \ |
| 64 | "Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux" |
| 65 | |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 66 | #ifdef CONFIG_IWLEGACY_DEBUG |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 67 | #define VD "d" |
| 68 | #else |
| 69 | #define VD |
| 70 | #endif |
| 71 | |
| 72 | /* |
| 73 | * add "s" to indicate spectrum measurement included. |
| 74 | * we add it here to be consistent with previous releases in which |
| 75 | * this was configurable. |
| 76 | */ |
| 77 | #define DRV_VERSION IWLWIFI_VERSION VD "s" |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 78 | #define DRV_COPYRIGHT "Copyright(c) 2003-2011 Intel Corporation" |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 79 | #define DRV_AUTHOR "<ilw@linux.intel.com>" |
| 80 | |
| 81 | MODULE_DESCRIPTION(DRV_DESCRIPTION); |
| 82 | MODULE_VERSION(DRV_VERSION); |
| 83 | MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); |
| 84 | MODULE_LICENSE("GPL"); |
| 85 | |
| 86 | /* module parameters */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 87 | struct il_mod_params il3945_mod_params = { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 88 | .sw_crypto = 1, |
| 89 | .restart_fw = 1, |
Stanislaw Gruszka | 0263aa4 | 2011-03-29 11:24:21 +0200 | [diff] [blame] | 90 | .disable_hw_scan = 1, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 91 | /* the rest are 0 by default */ |
| 92 | }; |
| 93 | |
| 94 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 95 | * il3945_get_antenna_flags - Get antenna flags for RXON command |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 96 | * @il: eeprom and antenna fields are used to determine antenna flags |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 97 | * |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 98 | * il->eeprom39 is used to determine if antenna AUX/MAIN are reversed |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 99 | * il3945_mod_params.antenna specifies the antenna diversity mode: |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 100 | * |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 101 | * IL_ANTENNA_DIVERSITY - NIC selects best antenna by itself |
| 102 | * IL_ANTENNA_MAIN - Force MAIN antenna |
| 103 | * IL_ANTENNA_AUX - Force AUX antenna |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 104 | */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 105 | __le32 |
| 106 | il3945_get_antenna_flags(const struct il_priv *il) |
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 | struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 109 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 110 | switch (il3945_mod_params.antenna) { |
| 111 | case IL_ANTENNA_DIVERSITY: |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 112 | return 0; |
| 113 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 114 | case IL_ANTENNA_MAIN: |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 115 | if (eeprom->antenna_switch_type) |
| 116 | return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_B_MSK; |
| 117 | return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_A_MSK; |
| 118 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 119 | case IL_ANTENNA_AUX: |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 120 | if (eeprom->antenna_switch_type) |
| 121 | return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_A_MSK; |
| 122 | return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_B_MSK; |
| 123 | } |
| 124 | |
| 125 | /* bad antenna selector value */ |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 126 | IL_ERR("Bad antenna selector value (0x%x)\n", |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 127 | il3945_mod_params.antenna); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 128 | |
| 129 | return 0; /* "diversity" is default if error */ |
| 130 | } |
| 131 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 132 | static int |
| 133 | il3945_set_ccmp_dynamic_key_info(struct il_priv *il, |
| 134 | struct ieee80211_key_conf *keyconf, u8 sta_id) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 135 | { |
| 136 | unsigned long flags; |
| 137 | __le16 key_flags = 0; |
| 138 | int ret; |
| 139 | |
| 140 | key_flags |= (STA_KEY_FLG_CCMP | STA_KEY_FLG_MAP_KEY_MSK); |
| 141 | key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); |
| 142 | |
Stanislaw Gruszka | b16db50 | 2012-02-03 17:31:44 +0100 | [diff] [blame] | 143 | if (sta_id == il->hw_params.bcast_id) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 144 | key_flags |= STA_KEY_MULTICAST_MSK; |
| 145 | |
| 146 | keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; |
| 147 | keyconf->hw_key_idx = keyconf->keyidx; |
| 148 | key_flags &= ~STA_KEY_FLG_INVALID; |
| 149 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 150 | spin_lock_irqsave(&il->sta_lock, flags); |
| 151 | il->stations[sta_id].keyinfo.cipher = keyconf->cipher; |
| 152 | il->stations[sta_id].keyinfo.keylen = keyconf->keylen; |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 153 | memcpy(il->stations[sta_id].keyinfo.key, keyconf->key, keyconf->keylen); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 154 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 155 | memcpy(il->stations[sta_id].sta.key.key, keyconf->key, keyconf->keylen); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 156 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 157 | if ((il->stations[sta_id].sta.key. |
| 158 | key_flags & STA_KEY_FLG_ENCRYPT_MSK) == STA_KEY_FLG_NO_ENC) |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 159 | il->stations[sta_id].sta.key.key_offset = |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 160 | il_get_free_ucode_key_idx(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 161 | /* else, we are overriding an existing key => no need to allocated room |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 162 | * in uCode. */ |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 163 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 164 | WARN(il->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET, |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 165 | "no space for a new key"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 166 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 167 | il->stations[sta_id].sta.key.key_flags = key_flags; |
| 168 | il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; |
| 169 | il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 170 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 171 | D_INFO("hwcrypto: modify ucode station key info\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 172 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 173 | ret = il_send_add_sta(il, &il->stations[sta_id].sta, CMD_ASYNC); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 174 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 175 | spin_unlock_irqrestore(&il->sta_lock, flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 176 | |
| 177 | return ret; |
| 178 | } |
| 179 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 180 | static int |
| 181 | il3945_set_tkip_dynamic_key_info(struct il_priv *il, |
| 182 | struct ieee80211_key_conf *keyconf, u8 sta_id) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 183 | { |
| 184 | return -EOPNOTSUPP; |
| 185 | } |
| 186 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 187 | static int |
| 188 | il3945_set_wep_dynamic_key_info(struct il_priv *il, |
| 189 | struct ieee80211_key_conf *keyconf, u8 sta_id) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 190 | { |
| 191 | return -EOPNOTSUPP; |
| 192 | } |
| 193 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 194 | static int |
| 195 | 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] | 196 | { |
| 197 | unsigned long flags; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 198 | struct il_addsta_cmd sta_cmd; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 199 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 200 | spin_lock_irqsave(&il->sta_lock, flags); |
| 201 | memset(&il->stations[sta_id].keyinfo, 0, sizeof(struct il_hw_key)); |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 202 | memset(&il->stations[sta_id].sta.key, 0, sizeof(struct il4965_keyinfo)); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 203 | il->stations[sta_id].sta.key.key_flags = STA_KEY_FLG_NO_ENC; |
| 204 | il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; |
| 205 | il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 206 | memcpy(&sta_cmd, &il->stations[sta_id].sta, |
| 207 | sizeof(struct il_addsta_cmd)); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 208 | spin_unlock_irqrestore(&il->sta_lock, flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 209 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 210 | D_INFO("hwcrypto: clear ucode station key info\n"); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 211 | return il_send_add_sta(il, &sta_cmd, CMD_SYNC); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 212 | } |
| 213 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 214 | static int |
| 215 | il3945_set_dynamic_key(struct il_priv *il, struct ieee80211_key_conf *keyconf, |
| 216 | u8 sta_id) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 217 | { |
| 218 | int ret = 0; |
| 219 | |
| 220 | keyconf->hw_key_idx = HW_KEY_DYNAMIC; |
| 221 | |
| 222 | switch (keyconf->cipher) { |
| 223 | case WLAN_CIPHER_SUITE_CCMP: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 224 | ret = il3945_set_ccmp_dynamic_key_info(il, keyconf, sta_id); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 225 | break; |
| 226 | case WLAN_CIPHER_SUITE_TKIP: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 227 | ret = il3945_set_tkip_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_WEP40: |
| 230 | case WLAN_CIPHER_SUITE_WEP104: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 231 | ret = il3945_set_wep_dynamic_key_info(il, keyconf, sta_id); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 232 | break; |
| 233 | default: |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 234 | IL_ERR("Unknown alg: %s alg=%x\n", __func__, keyconf->cipher); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 235 | ret = -EINVAL; |
| 236 | } |
| 237 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 238 | D_WEP("Set dynamic key: alg=%x len=%d idx=%d sta=%d ret=%d\n", |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 239 | keyconf->cipher, keyconf->keylen, keyconf->keyidx, sta_id, ret); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 240 | |
| 241 | return ret; |
| 242 | } |
| 243 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 244 | static int |
| 245 | il3945_remove_static_key(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 246 | { |
| 247 | int ret = -EOPNOTSUPP; |
| 248 | |
| 249 | return ret; |
| 250 | } |
| 251 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 252 | static int |
| 253 | il3945_set_static_key(struct il_priv *il, struct ieee80211_key_conf *key) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 254 | { |
| 255 | if (key->cipher == WLAN_CIPHER_SUITE_WEP40 || |
| 256 | key->cipher == WLAN_CIPHER_SUITE_WEP104) |
| 257 | return -EOPNOTSUPP; |
| 258 | |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 259 | IL_ERR("Static key invalid: cipher %x\n", key->cipher); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 260 | return -EINVAL; |
| 261 | } |
| 262 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 263 | static void |
| 264 | il3945_clear_free_frames(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 265 | { |
| 266 | struct list_head *element; |
| 267 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 268 | D_INFO("%d frames on pre-allocated heap on clear.\n", il->frames_count); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 269 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 270 | while (!list_empty(&il->free_frames)) { |
| 271 | element = il->free_frames.next; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 272 | list_del(element); |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 273 | kfree(list_entry(element, struct il3945_frame, list)); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 274 | il->frames_count--; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 275 | } |
| 276 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 277 | if (il->frames_count) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 278 | IL_WARN("%d frames still in use. Did we lose one?\n", |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 279 | il->frames_count); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 280 | il->frames_count = 0; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 281 | } |
| 282 | } |
| 283 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 284 | static struct il3945_frame * |
| 285 | il3945_get_free_frame(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 286 | { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 287 | struct il3945_frame *frame; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 288 | struct list_head *element; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 289 | if (list_empty(&il->free_frames)) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 290 | frame = kzalloc(sizeof(*frame), GFP_KERNEL); |
| 291 | if (!frame) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 292 | IL_ERR("Could not allocate frame!\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 293 | return NULL; |
| 294 | } |
| 295 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 296 | il->frames_count++; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 297 | return frame; |
| 298 | } |
| 299 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 300 | element = il->free_frames.next; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 301 | list_del(element); |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 302 | return list_entry(element, struct il3945_frame, list); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 303 | } |
| 304 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 305 | static void |
| 306 | il3945_free_frame(struct il_priv *il, struct il3945_frame *frame) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 307 | { |
| 308 | memset(frame, 0, sizeof(*frame)); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 309 | list_add(&frame->list, &il->free_frames); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 310 | } |
| 311 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 312 | unsigned int |
| 313 | il3945_fill_beacon_frame(struct il_priv *il, struct ieee80211_hdr *hdr, |
| 314 | int left) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 315 | { |
| 316 | |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 317 | if (!il_is_associated(il) || !il->beacon_skb) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 318 | return 0; |
| 319 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 320 | if (il->beacon_skb->len > left) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 321 | return 0; |
| 322 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 323 | memcpy(hdr, il->beacon_skb->data, il->beacon_skb->len); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 324 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 325 | return il->beacon_skb->len; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 326 | } |
| 327 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 328 | static int |
| 329 | il3945_send_beacon_cmd(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 330 | { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 331 | struct il3945_frame *frame; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 332 | unsigned int frame_size; |
| 333 | int rc; |
| 334 | u8 rate; |
| 335 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 336 | frame = il3945_get_free_frame(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 337 | |
| 338 | if (!frame) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 339 | IL_ERR("Could not obtain free frame buffer for beacon " |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 340 | "command.\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 341 | return -ENOMEM; |
| 342 | } |
| 343 | |
Stanislaw Gruszka | 8300719 | 2012-02-03 17:31:57 +0100 | [diff] [blame] | 344 | rate = il_get_lowest_plcp(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 345 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 346 | frame_size = il3945_hw_get_beacon_cmd(il, frame, rate); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 347 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 348 | rc = il_send_cmd_pdu(il, C_TX_BEACON, frame_size, &frame->u.cmd[0]); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 349 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 350 | il3945_free_frame(il, frame); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 351 | |
| 352 | return rc; |
| 353 | } |
| 354 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 355 | static void |
| 356 | il3945_unset_hw_params(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 357 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 358 | if (il->_3945.shared_virt) |
| 359 | dma_free_coherent(&il->pci_dev->dev, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 360 | sizeof(struct il3945_shared), |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 361 | il->_3945.shared_virt, il->_3945.shared_phys); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 362 | } |
| 363 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 364 | static void |
| 365 | il3945_build_tx_cmd_hwcrypto(struct il_priv *il, struct ieee80211_tx_info *info, |
| 366 | struct il_device_cmd *cmd, |
| 367 | struct sk_buff *skb_frag, int sta_id) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 368 | { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 369 | 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] | 370 | struct il_hw_key *keyinfo = &il->stations[sta_id].keyinfo; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 371 | |
| 372 | tx_cmd->sec_ctl = 0; |
| 373 | |
| 374 | switch (keyinfo->cipher) { |
| 375 | case WLAN_CIPHER_SUITE_CCMP: |
| 376 | tx_cmd->sec_ctl = TX_CMD_SEC_CCM; |
| 377 | memcpy(tx_cmd->key, keyinfo->key, keyinfo->keylen); |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 378 | D_TX("tx_cmd with AES hwcrypto\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 379 | break; |
| 380 | |
| 381 | case WLAN_CIPHER_SUITE_TKIP: |
| 382 | break; |
| 383 | |
| 384 | case WLAN_CIPHER_SUITE_WEP104: |
| 385 | tx_cmd->sec_ctl |= TX_CMD_SEC_KEY128; |
| 386 | /* fall through */ |
| 387 | case WLAN_CIPHER_SUITE_WEP40: |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 388 | tx_cmd->sec_ctl |= |
| 389 | TX_CMD_SEC_WEP | (info->control.hw_key-> |
| 390 | hw_key_idx & TX_CMD_SEC_MSK) << |
| 391 | TX_CMD_SEC_SHIFT; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 392 | |
| 393 | memcpy(&tx_cmd->key[3], keyinfo->key, keyinfo->keylen); |
| 394 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 395 | D_TX("Configuring packet for WEP encryption " "with key %d\n", |
| 396 | info->control.hw_key->hw_key_idx); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 397 | break; |
| 398 | |
| 399 | default: |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 400 | IL_ERR("Unknown encode cipher %x\n", keyinfo->cipher); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 401 | break; |
| 402 | } |
| 403 | } |
| 404 | |
| 405 | /* |
Stanislaw Gruszka | 4d69c75 | 2011-08-30 15:26:35 +0200 | [diff] [blame] | 406 | * handle build C_TX command notification. |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 407 | */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 408 | static void |
| 409 | il3945_build_tx_cmd_basic(struct il_priv *il, struct il_device_cmd *cmd, |
| 410 | struct ieee80211_tx_info *info, |
| 411 | struct ieee80211_hdr *hdr, u8 std_id) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 412 | { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 413 | 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] | 414 | __le32 tx_flags = tx_cmd->tx_flags; |
| 415 | __le16 fc = hdr->frame_control; |
| 416 | |
| 417 | tx_cmd->stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; |
| 418 | if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) { |
| 419 | tx_flags |= TX_CMD_FLG_ACK_MSK; |
| 420 | if (ieee80211_is_mgmt(fc)) |
| 421 | tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; |
| 422 | if (ieee80211_is_probe_resp(fc) && |
| 423 | !(le16_to_cpu(hdr->seq_ctrl) & 0xf)) |
| 424 | tx_flags |= TX_CMD_FLG_TSF_MSK; |
| 425 | } else { |
| 426 | tx_flags &= (~TX_CMD_FLG_ACK_MSK); |
| 427 | tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; |
| 428 | } |
| 429 | |
| 430 | tx_cmd->sta_id = std_id; |
| 431 | if (ieee80211_has_morefrags(fc)) |
| 432 | tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK; |
| 433 | |
| 434 | if (ieee80211_is_data_qos(fc)) { |
| 435 | u8 *qc = ieee80211_get_qos_ctl(hdr); |
| 436 | tx_cmd->tid_tspec = qc[0] & 0xf; |
| 437 | tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK; |
| 438 | } else { |
| 439 | tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; |
| 440 | } |
| 441 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 442 | il_tx_cmd_protection(il, info, fc, &tx_flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 443 | |
| 444 | tx_flags &= ~(TX_CMD_FLG_ANT_SEL_MSK); |
| 445 | if (ieee80211_is_mgmt(fc)) { |
| 446 | if (ieee80211_is_assoc_req(fc) || ieee80211_is_reassoc_req(fc)) |
| 447 | tx_cmd->timeout.pm_frame_timeout = cpu_to_le16(3); |
| 448 | else |
| 449 | tx_cmd->timeout.pm_frame_timeout = cpu_to_le16(2); |
| 450 | } else { |
| 451 | tx_cmd->timeout.pm_frame_timeout = 0; |
| 452 | } |
| 453 | |
| 454 | tx_cmd->driver_txop = 0; |
| 455 | tx_cmd->tx_flags = tx_flags; |
| 456 | tx_cmd->next_frame_len = 0; |
| 457 | } |
| 458 | |
| 459 | /* |
Stanislaw Gruszka | 4d69c75 | 2011-08-30 15:26:35 +0200 | [diff] [blame] | 460 | * start C_TX command process |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 461 | */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 462 | static int |
| 463 | il3945_tx_skb(struct il_priv *il, struct sk_buff *skb) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 464 | { |
| 465 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; |
| 466 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 467 | struct il3945_tx_cmd *tx_cmd; |
| 468 | struct il_tx_queue *txq = NULL; |
| 469 | struct il_queue *q = NULL; |
| 470 | struct il_device_cmd *out_cmd; |
| 471 | struct il_cmd_meta *out_meta; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 472 | dma_addr_t phys_addr; |
| 473 | dma_addr_t txcmd_phys; |
| 474 | int txq_id = skb_get_queue_mapping(skb); |
| 475 | u16 len, idx, hdr_len; |
| 476 | u8 id; |
| 477 | u8 unicast; |
| 478 | u8 sta_id; |
| 479 | u8 tid = 0; |
| 480 | __le16 fc; |
| 481 | u8 wait_write_ptr = 0; |
| 482 | unsigned long flags; |
| 483 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 484 | spin_lock_irqsave(&il->lock, flags); |
| 485 | if (il_is_rfkill(il)) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 486 | D_DROP("Dropping - RF KILL\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 487 | goto drop_unlock; |
| 488 | } |
| 489 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 490 | if ((ieee80211_get_tx_rate(il->hw, info)->hw_value & 0xFF) == |
| 491 | 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 | 8300719 | 2012-02-03 17:31:57 +0100 | [diff] [blame] | 515 | sta_id = il_sta_id_or_broadcast(il, info->control.sta); |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 516 | if (sta_id == IL_INVALID_STATION) { |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 517 | D_DROP("Dropping - INVALID STATION: %pM\n", hdr->addr1); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 518 | goto drop; |
| 519 | } |
| 520 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 521 | D_RATE("station Id %d\n", sta_id); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 522 | |
| 523 | if (ieee80211_is_data_qos(fc)) { |
| 524 | u8 *qc = ieee80211_get_qos_ctl(hdr); |
| 525 | tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK; |
| 526 | if (unlikely(tid >= MAX_TID_COUNT)) |
| 527 | goto drop; |
| 528 | } |
| 529 | |
| 530 | /* Descriptor for chosen Tx queue */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 531 | txq = &il->txq[txq_id]; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 532 | q = &txq->q; |
| 533 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 534 | if ((il_queue_space(q) < q->high_mark)) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 535 | goto drop; |
| 536 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 537 | spin_lock_irqsave(&il->lock, flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 538 | |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 539 | idx = il_get_cmd_idx(q, q->write_ptr, 0); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 540 | |
| 541 | /* Set up driver data for this TFD */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 542 | 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] | 543 | txq->txb[q->write_ptr].skb = skb; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 544 | |
| 545 | /* Init first empty entry in queue's array of Tx/cmd buffers */ |
| 546 | out_cmd = txq->cmd[idx]; |
| 547 | out_meta = &txq->meta[idx]; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 548 | tx_cmd = (struct il3945_tx_cmd *)out_cmd->cmd.payload; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 549 | memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr)); |
| 550 | memset(tx_cmd, 0, sizeof(*tx_cmd)); |
| 551 | |
| 552 | /* |
| 553 | * Set up the Tx-command (not MAC!) header. |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 554 | * 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] | 555 | * after Tx, uCode's Tx response will return this value so driver can |
| 556 | * locate the frame within the tx queue and do post-tx processing. |
| 557 | */ |
Stanislaw Gruszka | 4d69c75 | 2011-08-30 15:26:35 +0200 | [diff] [blame] | 558 | out_cmd->hdr.cmd = C_TX; |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 559 | out_cmd->hdr.sequence = |
| 560 | cpu_to_le16((u16) |
| 561 | (QUEUE_TO_SEQ(txq_id) | IDX_TO_SEQ(q->write_ptr))); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 562 | |
| 563 | /* Copy MAC header from skb into command buffer */ |
| 564 | memcpy(tx_cmd->hdr, hdr, hdr_len); |
| 565 | |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 566 | if (info->control.hw_key) |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 567 | 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] | 568 | |
| 569 | /* TODO need this for burst mode later on */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 570 | 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] | 571 | |
Stanislaw Gruszka | 81fb461 | 2011-12-23 08:13:49 +0100 | [diff] [blame] | 572 | il3945_hw_build_tx_cmd_rate(il, out_cmd, info, hdr, sta_id); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 573 | |
| 574 | /* Total # bytes to be transmitted */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 575 | len = (u16) skb->len; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 576 | tx_cmd->len = cpu_to_le16(len); |
| 577 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 578 | il_dbg_log_tx_data_frame(il, len, hdr); |
| 579 | il_update_stats(il, true, fc, len); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 580 | tx_cmd->tx_flags &= ~TX_CMD_FLG_ANT_A_MSK; |
| 581 | tx_cmd->tx_flags &= ~TX_CMD_FLG_ANT_B_MSK; |
| 582 | |
| 583 | if (!ieee80211_has_morefrags(hdr->frame_control)) { |
| 584 | txq->need_update = 1; |
| 585 | } else { |
| 586 | wait_write_ptr = 1; |
| 587 | txq->need_update = 0; |
| 588 | } |
| 589 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 590 | D_TX("sequence nr = 0X%x\n", le16_to_cpu(out_cmd->hdr.sequence)); |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 591 | 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] | 592 | il_print_hex_dump(il, IL_DL_TX, tx_cmd, sizeof(*tx_cmd)); |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 593 | il_print_hex_dump(il, IL_DL_TX, (u8 *) tx_cmd->hdr, |
| 594 | ieee80211_hdrlen(fc)); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 595 | |
| 596 | /* |
| 597 | * Use the first empty entry in this queue's command buffer array |
| 598 | * to contain the Tx command and MAC header concatenated together |
| 599 | * (payload data will be in another buffer). |
| 600 | * Size of this varies, due to varying MAC header length. |
| 601 | * If end is not dword aligned, we'll have 2 extra bytes at the end |
| 602 | * of the MAC header (device reads on dword boundaries). |
| 603 | * We'll tell device about this padding later. |
| 604 | */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 605 | len = |
| 606 | sizeof(struct il3945_tx_cmd) + sizeof(struct il_cmd_header) + |
| 607 | hdr_len; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 608 | len = (len + 3) & ~3; |
| 609 | |
| 610 | /* Physical address of this Tx command's header (not MAC header!), |
| 611 | * within command buffer array. */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 612 | txcmd_phys = |
| 613 | pci_map_single(il->pci_dev, &out_cmd->hdr, len, PCI_DMA_TODEVICE); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 614 | /* we do not map meta data ... so we can safely access address to |
| 615 | * provide to unmap command*/ |
| 616 | dma_unmap_addr_set(out_meta, mapping, txcmd_phys); |
| 617 | dma_unmap_len_set(out_meta, len, len); |
| 618 | |
| 619 | /* Add buffer containing Tx command and MAC(!) header to TFD's |
| 620 | * first entry */ |
Stanislaw Gruszka | c39ae9f | 2012-02-03 17:31:58 +0100 | [diff] [blame^] | 621 | il->ops->lib->txq_attach_buf_to_tfd(il, txq, txcmd_phys, len, 1, 0); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 622 | |
| 623 | /* Set up TFD's 2nd entry to point directly to remainder of skb, |
| 624 | * if any (802.11 null frames have no payload). */ |
| 625 | len = skb->len - hdr_len; |
| 626 | if (len) { |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 627 | phys_addr = |
| 628 | pci_map_single(il->pci_dev, skb->data + hdr_len, len, |
| 629 | PCI_DMA_TODEVICE); |
Stanislaw Gruszka | c39ae9f | 2012-02-03 17:31:58 +0100 | [diff] [blame^] | 630 | il->ops->lib->txq_attach_buf_to_tfd(il, txq, phys_addr, len, 0, |
| 631 | U32_PAD(len)); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 632 | } |
| 633 | |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 634 | /* Tell device the write idx *just past* this latest filled TFD */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 635 | 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] | 636 | il_txq_update_write_ptr(il, txq); |
| 637 | spin_unlock_irqrestore(&il->lock, flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 638 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 639 | if (il_queue_space(q) < q->high_mark && il->mac80211_registered) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 640 | if (wait_write_ptr) { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 641 | spin_lock_irqsave(&il->lock, flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 642 | txq->need_update = 1; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 643 | il_txq_update_write_ptr(il, txq); |
| 644 | spin_unlock_irqrestore(&il->lock, flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 645 | } |
| 646 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 647 | il_stop_queue(il, txq); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 648 | } |
| 649 | |
| 650 | return 0; |
| 651 | |
| 652 | drop_unlock: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 653 | spin_unlock_irqrestore(&il->lock, flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 654 | drop: |
| 655 | return -1; |
| 656 | } |
| 657 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 658 | static int |
| 659 | il3945_get_measurement(struct il_priv *il, |
| 660 | struct ieee80211_measurement_params *params, u8 type) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 661 | { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 662 | struct il_spectrum_cmd spectrum; |
Stanislaw Gruszka | dcae1c6 | 2011-08-26 14:36:21 +0200 | [diff] [blame] | 663 | struct il_rx_pkt *pkt; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 664 | struct il_host_cmd cmd = { |
Stanislaw Gruszka | 4d69c75 | 2011-08-30 15:26:35 +0200 | [diff] [blame] | 665 | .id = C_SPECTRUM_MEASUREMENT, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 666 | .data = (void *)&spectrum, |
| 667 | .flags = CMD_WANT_SKB, |
| 668 | }; |
| 669 | u32 add_time = le64_to_cpu(params->start_time); |
| 670 | int rc; |
| 671 | int spectrum_resp_status; |
| 672 | int duration = le16_to_cpu(params->duration); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 673 | |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 674 | if (il_is_associated(il)) |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 675 | add_time = |
| 676 | il_usecs_to_beacons(il, |
| 677 | le64_to_cpu(params->start_time) - |
| 678 | il->_3945.last_tsf, |
Stanislaw Gruszka | c8b0395 | 2012-02-03 17:31:37 +0100 | [diff] [blame] | 679 | le16_to_cpu(il->timing.beacon_interval)); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 680 | |
| 681 | memset(&spectrum, 0, sizeof(spectrum)); |
| 682 | |
| 683 | spectrum.channel_count = cpu_to_le16(1); |
| 684 | spectrum.flags = |
| 685 | RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK; |
| 686 | spectrum.filter_flags = MEASUREMENT_FILTER_FLAG; |
| 687 | cmd.len = sizeof(spectrum); |
| 688 | spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len)); |
| 689 | |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 690 | if (il_is_associated(il)) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 691 | spectrum.start_time = |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 692 | il_add_beacon_time(il, il->_3945.last_beacon_time, add_time, |
Stanislaw Gruszka | c8b0395 | 2012-02-03 17:31:37 +0100 | [diff] [blame] | 693 | le16_to_cpu(il->timing.beacon_interval)); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 694 | else |
| 695 | spectrum.start_time = 0; |
| 696 | |
| 697 | spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT); |
| 698 | spectrum.channels[0].channel = params->channel; |
| 699 | spectrum.channels[0].type = type; |
Stanislaw Gruszka | c8b0395 | 2012-02-03 17:31:37 +0100 | [diff] [blame] | 700 | if (il->active.flags & RXON_FLG_BAND_24G_MSK) |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 701 | spectrum.flags |= |
| 702 | RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK | |
| 703 | RXON_FLG_TGG_PROTECT_MSK; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 704 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 705 | rc = il_send_cmd_sync(il, &cmd); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 706 | if (rc) |
| 707 | return rc; |
| 708 | |
Stanislaw Gruszka | dcae1c6 | 2011-08-26 14:36:21 +0200 | [diff] [blame] | 709 | pkt = (struct il_rx_pkt *)cmd.reply_page; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 710 | if (pkt->hdr.flags & IL_CMD_FAILED_MSK) { |
Stanislaw Gruszka | 4d69c75 | 2011-08-30 15:26:35 +0200 | [diff] [blame] | 711 | IL_ERR("Bad return from N_RX_ON_ASSOC command\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 712 | rc = -EIO; |
| 713 | } |
| 714 | |
| 715 | spectrum_resp_status = le16_to_cpu(pkt->u.spectrum.status); |
| 716 | switch (spectrum_resp_status) { |
| 717 | case 0: /* Command will be handled */ |
| 718 | if (pkt->u.spectrum.id != 0xff) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 719 | D_INFO("Replaced existing measurement: %d\n", |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 720 | pkt->u.spectrum.id); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 721 | il->measurement_status &= ~MEASUREMENT_READY; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 722 | } |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 723 | il->measurement_status |= MEASUREMENT_ACTIVE; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 724 | rc = 0; |
| 725 | break; |
| 726 | |
| 727 | case 1: /* Command will not be handled */ |
| 728 | rc = -EAGAIN; |
| 729 | break; |
| 730 | } |
| 731 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 732 | il_free_pages(il, cmd.reply_page); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 733 | |
| 734 | return rc; |
| 735 | } |
| 736 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 737 | static void |
| 738 | il3945_hdl_alive(struct il_priv *il, struct il_rx_buf *rxb) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 739 | { |
Stanislaw Gruszka | dcae1c6 | 2011-08-26 14:36:21 +0200 | [diff] [blame] | 740 | struct il_rx_pkt *pkt = rxb_addr(rxb); |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 741 | struct il_alive_resp *palive; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 742 | struct delayed_work *pwork; |
| 743 | |
| 744 | palive = &pkt->u.alive_frame; |
| 745 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 746 | D_INFO("Alive ucode status 0x%08X revision " "0x%01X 0x%01X\n", |
| 747 | palive->is_valid, palive->ver_type, palive->ver_subtype); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 748 | |
| 749 | if (palive->ver_subtype == INITIALIZE_SUBTYPE) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 750 | D_INFO("Initialization Alive received.\n"); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 751 | memcpy(&il->card_alive_init, &pkt->u.alive_frame, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 752 | sizeof(struct il_alive_resp)); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 753 | pwork = &il->init_alive_start; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 754 | } else { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 755 | D_INFO("Runtime Alive received.\n"); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 756 | memcpy(&il->card_alive, &pkt->u.alive_frame, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 757 | sizeof(struct il_alive_resp)); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 758 | pwork = &il->alive_start; |
| 759 | il3945_disable_events(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 760 | } |
| 761 | |
| 762 | /* We delay the ALIVE response by 5ms to |
| 763 | * give the HW RF Kill time to activate... */ |
| 764 | if (palive->is_valid == UCODE_VALID_OK) |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 765 | queue_delayed_work(il->workqueue, pwork, msecs_to_jiffies(5)); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 766 | else |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 767 | IL_WARN("uCode did not respond OK.\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 768 | } |
| 769 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 770 | static void |
| 771 | il3945_hdl_add_sta(struct il_priv *il, struct il_rx_buf *rxb) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 772 | { |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 773 | #ifdef CONFIG_IWLEGACY_DEBUG |
Stanislaw Gruszka | dcae1c6 | 2011-08-26 14:36:21 +0200 | [diff] [blame] | 774 | struct il_rx_pkt *pkt = rxb_addr(rxb); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 775 | #endif |
| 776 | |
Stanislaw Gruszka | 4d69c75 | 2011-08-30 15:26:35 +0200 | [diff] [blame] | 777 | 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] | 778 | } |
| 779 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 780 | static void |
| 781 | il3945_hdl_beacon(struct il_priv *il, struct il_rx_buf *rxb) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 782 | { |
Stanislaw Gruszka | dcae1c6 | 2011-08-26 14:36:21 +0200 | [diff] [blame] | 783 | struct il_rx_pkt *pkt = rxb_addr(rxb); |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 784 | struct il3945_beacon_notif *beacon = &(pkt->u.beacon_status); |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 785 | #ifdef CONFIG_IWLEGACY_DEBUG |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 786 | u8 rate = beacon->beacon_notify_hdr.rate; |
| 787 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 788 | D_RX("beacon status %x retries %d iss %d " "tsf %d %d rate %d\n", |
| 789 | le32_to_cpu(beacon->beacon_notify_hdr.status) & TX_STATUS_MSK, |
| 790 | beacon->beacon_notify_hdr.failure_frame, |
| 791 | le32_to_cpu(beacon->ibss_mgr_status), |
| 792 | le32_to_cpu(beacon->high_tsf), le32_to_cpu(beacon->low_tsf), rate); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 793 | #endif |
| 794 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 795 | il->ibss_manager = le32_to_cpu(beacon->ibss_mgr_status); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 796 | |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 797 | } |
| 798 | |
| 799 | /* Handle notification from uCode that card's power state is changing |
| 800 | * due to software, hardware, or critical temperature RFKILL */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 801 | static void |
| 802 | il3945_hdl_card_state(struct il_priv *il, struct il_rx_buf *rxb) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 803 | { |
Stanislaw Gruszka | dcae1c6 | 2011-08-26 14:36:21 +0200 | [diff] [blame] | 804 | struct il_rx_pkt *pkt = rxb_addr(rxb); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 805 | u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 806 | unsigned long status = il->status; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 807 | |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 808 | IL_WARN("Card state received: HW:%s SW:%s\n", |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 809 | (flags & HW_CARD_DISABLED) ? "Kill" : "On", |
| 810 | (flags & SW_CARD_DISABLED) ? "Kill" : "On"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 811 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 812 | _il_wr(il, CSR_UCODE_DRV_GP1_SET, CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 813 | |
| 814 | if (flags & HW_CARD_DISABLED) |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 815 | set_bit(S_RF_KILL_HW, &il->status); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 816 | else |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 817 | clear_bit(S_RF_KILL_HW, &il->status); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 818 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 819 | il_scan_cancel(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 820 | |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 821 | if ((test_bit(S_RF_KILL_HW, &status) != |
| 822 | test_bit(S_RF_KILL_HW, &il->status))) |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 823 | wiphy_rfkill_set_hw_state(il->hw->wiphy, |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 824 | test_bit(S_RF_KILL_HW, &il->status)); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 825 | else |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 826 | wake_up(&il->wait_command_queue); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 827 | } |
| 828 | |
| 829 | /** |
Stanislaw Gruszka | d0c7234 | 2011-08-30 15:39:42 +0200 | [diff] [blame] | 830 | * il3945_setup_handlers - Initialize Rx handler callbacks |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 831 | * |
| 832 | * Setup the RX handlers for each of the reply types sent from the uCode |
| 833 | * to the host. |
| 834 | * |
| 835 | * This function chains into the hardware specific files for them to setup |
| 836 | * any hardware specific handlers as well. |
| 837 | */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 838 | static void |
| 839 | il3945_setup_handlers(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 840 | { |
Stanislaw Gruszka | 6e9848b4 | 2011-08-30 15:45:31 +0200 | [diff] [blame] | 841 | il->handlers[N_ALIVE] = il3945_hdl_alive; |
| 842 | il->handlers[C_ADD_STA] = il3945_hdl_add_sta; |
| 843 | il->handlers[N_ERROR] = il_hdl_error; |
Stanislaw Gruszka | d2dfb33 | 2011-11-15 13:16:38 +0100 | [diff] [blame] | 844 | il->handlers[N_CHANNEL_SWITCH] = il_hdl_csa; |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 845 | il->handlers[N_SPECTRUM_MEASUREMENT] = il_hdl_spectrum_measurement; |
Stanislaw Gruszka | d2dfb33 | 2011-11-15 13:16:38 +0100 | [diff] [blame] | 846 | il->handlers[N_PM_SLEEP] = il_hdl_pm_sleep; |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 847 | il->handlers[N_PM_DEBUG_STATS] = il_hdl_pm_debug_stats; |
Stanislaw Gruszka | d2dfb33 | 2011-11-15 13:16:38 +0100 | [diff] [blame] | 848 | il->handlers[N_BEACON] = il3945_hdl_beacon; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 849 | |
| 850 | /* |
| 851 | * The same handler is used for both the REPLY to a discrete |
Stanislaw Gruszka | ebf0d90 | 2011-08-26 15:43:47 +0200 | [diff] [blame] | 852 | * stats request from the host as well as for the periodic |
| 853 | * stats notifications (after received beacons) from the uCode. |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 854 | */ |
Stanislaw Gruszka | d2dfb33 | 2011-11-15 13:16:38 +0100 | [diff] [blame] | 855 | il->handlers[C_STATS] = il3945_hdl_c_stats; |
| 856 | il->handlers[N_STATS] = il3945_hdl_stats; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 857 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 858 | il_setup_rx_scan_handlers(il); |
Stanislaw Gruszka | d2dfb33 | 2011-11-15 13:16:38 +0100 | [diff] [blame] | 859 | il->handlers[N_CARD_STATE] = il3945_hdl_card_state; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 860 | |
| 861 | /* Set up hardware specific Rx handlers */ |
Stanislaw Gruszka | d0c7234 | 2011-08-30 15:39:42 +0200 | [diff] [blame] | 862 | il3945_hw_handler_setup(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 863 | } |
| 864 | |
| 865 | /************************** RX-FUNCTIONS ****************************/ |
| 866 | /* |
| 867 | * Rx theory of operation |
| 868 | * |
| 869 | * The host allocates 32 DMA target addresses and passes the host address |
Stanislaw Gruszka | 3b98c7f | 2011-08-26 16:29:35 +0200 | [diff] [blame] | 870 | * 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] | 871 | * 0 to 31 |
| 872 | * |
| 873 | * Rx Queue Indexes |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 874 | * 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] | 875 | * |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 876 | * 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] | 877 | * to -- the driver can read up to (but not including) this position and get |
| 878 | * good data. |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 879 | * 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] | 880 | * |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 881 | * 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] | 882 | * position preceding WRITE is the last slot the firmware can place a packet. |
| 883 | * |
| 884 | * The queue is empty (no good data) if WRITE = READ - 1, and is full if |
| 885 | * WRITE = READ. |
| 886 | * |
| 887 | * 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] | 888 | * IDX position, and WRITE to the last (READ - 1 wrapped) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 889 | * |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 890 | * When the firmware places a packet in a buffer, it will advance the READ idx |
| 891 | * and fire the RX interrupt. The driver can then query the READ idx and |
| 892 | * 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] | 893 | * resets the Rx queue buffers with new memory. |
| 894 | * |
| 895 | * The management in the driver is as follows: |
| 896 | * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When |
| 897 | * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled |
| 898 | * to replenish the iwl->rxq->rx_free. |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 899 | * + In il3945_rx_replenish (scheduled) if 'processed' != 'read' then the |
Stanislaw Gruszka | 2d09b06 | 2011-08-26 16:10:40 +0200 | [diff] [blame] | 900 | * iwl->rxq is replenished and the READ IDX is updated (updating the |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 901 | * 'processed' and 'read' driver idxes as well) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 902 | * + A received packet is processed and handed to the kernel network stack, |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 903 | * detached from the iwl->rxq. The driver 'processed' idx is updated. |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 904 | * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free |
| 905 | * 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] | 906 | * 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] | 907 | * were enough free buffers and RX_STALLED is set it is cleared. |
| 908 | * |
| 909 | * |
| 910 | * Driver sequence: |
| 911 | * |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 912 | * il3945_rx_replenish() Replenishes rx_free list from rx_used, and calls |
| 913 | * il3945_rx_queue_restock |
| 914 | * 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] | 915 | * queue, updates firmware pointers, and updates |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 916 | * the WRITE idx. If insufficient rx_free buffers |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 917 | * are available, schedules il3945_rx_replenish |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 918 | * |
| 919 | * -- enable interrupts -- |
Stanislaw Gruszka | b73bb5f | 2011-08-26 14:37:54 +0200 | [diff] [blame] | 920 | * ISR - il3945_rx() Detach il_rx_bufs from pool up to the |
Stanislaw Gruszka | 2d09b06 | 2011-08-26 16:10:40 +0200 | [diff] [blame] | 921 | * READ IDX, detaching the SKB from the pool. |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 922 | * Moves the packet buffer from queue to rx_used. |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 923 | * Calls il3945_rx_queue_restock to refill any empty |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 924 | * slots. |
| 925 | * ... |
| 926 | * |
| 927 | */ |
| 928 | |
| 929 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 930 | * 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] | 931 | */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 932 | static inline __le32 |
| 933 | il3945_dma_addr2rbd_ptr(struct il_priv *il, dma_addr_t dma_addr) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 934 | { |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 935 | return cpu_to_le32((u32) dma_addr); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 936 | } |
| 937 | |
| 938 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 939 | * il3945_rx_queue_restock - refill RX queue from pre-allocated pool |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 940 | * |
| 941 | * If there are slots in the RX queue that need to be restocked, |
| 942 | * and we have free pre-allocated buffers, fill the ranks as much |
| 943 | * as we can, pulling from rx_free. |
| 944 | * |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 945 | * 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] | 946 | * also updates the memory address in the firmware to reference the new |
| 947 | * target buffer. |
| 948 | */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 949 | static void |
| 950 | il3945_rx_queue_restock(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 951 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 952 | struct il_rx_queue *rxq = &il->rxq; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 953 | struct list_head *element; |
Stanislaw Gruszka | b73bb5f | 2011-08-26 14:37:54 +0200 | [diff] [blame] | 954 | struct il_rx_buf *rxb; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 955 | unsigned long flags; |
| 956 | int write; |
| 957 | |
| 958 | spin_lock_irqsave(&rxq->lock, flags); |
| 959 | write = rxq->write & ~0x7; |
Stanislaw Gruszka | 232913b | 2011-08-26 10:45:16 +0200 | [diff] [blame] | 960 | while (il_rx_queue_space(rxq) > 0 && rxq->free_count) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 961 | /* Get next free Rx buffer, remove from free list */ |
| 962 | element = rxq->rx_free.next; |
Stanislaw Gruszka | b73bb5f | 2011-08-26 14:37:54 +0200 | [diff] [blame] | 963 | rxb = list_entry(element, struct il_rx_buf, list); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 964 | list_del(element); |
| 965 | |
| 966 | /* Point to Rx buffer via next RBD in circular buffer */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 967 | rxq->bd[rxq->write] = |
| 968 | il3945_dma_addr2rbd_ptr(il, rxb->page_dma); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 969 | rxq->queue[rxq->write] = rxb; |
| 970 | rxq->write = (rxq->write + 1) & RX_QUEUE_MASK; |
| 971 | rxq->free_count--; |
| 972 | } |
| 973 | spin_unlock_irqrestore(&rxq->lock, flags); |
| 974 | /* If the pre-allocated buffer pool is dropping low, schedule to |
| 975 | * refill it */ |
| 976 | if (rxq->free_count <= RX_LOW_WATERMARK) |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 977 | queue_work(il->workqueue, &il->rx_replenish); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 978 | |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 979 | /* If we've added more space for the firmware to place data, tell it. |
| 980 | * Increment device's write pointer in multiples of 8. */ |
Stanislaw Gruszka | 232913b | 2011-08-26 10:45:16 +0200 | [diff] [blame] | 981 | if (rxq->write_actual != (rxq->write & ~0x7) || |
| 982 | abs(rxq->write - rxq->read) > 7) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 983 | spin_lock_irqsave(&rxq->lock, flags); |
| 984 | rxq->need_update = 1; |
| 985 | spin_unlock_irqrestore(&rxq->lock, flags); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 986 | il_rx_queue_update_write_ptr(il, rxq); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 987 | } |
| 988 | } |
| 989 | |
| 990 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 991 | * 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] | 992 | * |
| 993 | * When moving to rx_free an SKB is allocated for the slot. |
| 994 | * |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 995 | * Also restock the Rx queue via il3945_rx_queue_restock. |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 996 | * This is called as a scheduled work item (except for during initialization) |
| 997 | */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 998 | static void |
| 999 | il3945_rx_allocate(struct il_priv *il, gfp_t priority) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1000 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1001 | struct il_rx_queue *rxq = &il->rxq; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1002 | struct list_head *element; |
Stanislaw Gruszka | b73bb5f | 2011-08-26 14:37:54 +0200 | [diff] [blame] | 1003 | struct il_rx_buf *rxb; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1004 | struct page *page; |
| 1005 | unsigned long flags; |
| 1006 | gfp_t gfp_mask = priority; |
| 1007 | |
| 1008 | while (1) { |
| 1009 | spin_lock_irqsave(&rxq->lock, flags); |
| 1010 | |
| 1011 | if (list_empty(&rxq->rx_used)) { |
| 1012 | spin_unlock_irqrestore(&rxq->lock, flags); |
| 1013 | return; |
| 1014 | } |
| 1015 | spin_unlock_irqrestore(&rxq->lock, flags); |
| 1016 | |
| 1017 | if (rxq->free_count > RX_LOW_WATERMARK) |
| 1018 | gfp_mask |= __GFP_NOWARN; |
| 1019 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1020 | if (il->hw_params.rx_page_order > 0) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1021 | gfp_mask |= __GFP_COMP; |
| 1022 | |
| 1023 | /* Alloc a new receive buffer */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1024 | page = alloc_pages(gfp_mask, il->hw_params.rx_page_order); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1025 | if (!page) { |
| 1026 | if (net_ratelimit()) |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1027 | D_INFO("Failed to allocate SKB buffer.\n"); |
Stanislaw Gruszka | 232913b | 2011-08-26 10:45:16 +0200 | [diff] [blame] | 1028 | if (rxq->free_count <= RX_LOW_WATERMARK && |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1029 | net_ratelimit()) |
Stanislaw Gruszka | 1722f8e | 2011-11-15 14:51:01 +0100 | [diff] [blame] | 1030 | IL_ERR("Failed to allocate SKB buffer with %0x." |
| 1031 | "Only %u free buffers remaining.\n", |
| 1032 | priority, rxq->free_count); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1033 | /* We don't reschedule replenish work here -- we will |
| 1034 | * call the restock method and if it still needs |
| 1035 | * more buffers it will schedule replenish */ |
| 1036 | break; |
| 1037 | } |
| 1038 | |
| 1039 | spin_lock_irqsave(&rxq->lock, flags); |
| 1040 | if (list_empty(&rxq->rx_used)) { |
| 1041 | spin_unlock_irqrestore(&rxq->lock, flags); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1042 | __free_pages(page, il->hw_params.rx_page_order); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1043 | return; |
| 1044 | } |
| 1045 | element = rxq->rx_used.next; |
Stanislaw Gruszka | b73bb5f | 2011-08-26 14:37:54 +0200 | [diff] [blame] | 1046 | rxb = list_entry(element, struct il_rx_buf, list); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1047 | list_del(element); |
| 1048 | spin_unlock_irqrestore(&rxq->lock, flags); |
| 1049 | |
| 1050 | rxb->page = page; |
| 1051 | /* Get physical address of RB/SKB */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1052 | rxb->page_dma = |
| 1053 | pci_map_page(il->pci_dev, page, 0, |
| 1054 | PAGE_SIZE << il->hw_params.rx_page_order, |
| 1055 | PCI_DMA_FROMDEVICE); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1056 | |
| 1057 | spin_lock_irqsave(&rxq->lock, flags); |
| 1058 | |
| 1059 | list_add_tail(&rxb->list, &rxq->rx_free); |
| 1060 | rxq->free_count++; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1061 | il->alloc_rxb_page++; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1062 | |
| 1063 | spin_unlock_irqrestore(&rxq->lock, flags); |
| 1064 | } |
| 1065 | } |
| 1066 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1067 | void |
| 1068 | 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] | 1069 | { |
| 1070 | unsigned long flags; |
| 1071 | int i; |
| 1072 | spin_lock_irqsave(&rxq->lock, flags); |
| 1073 | INIT_LIST_HEAD(&rxq->rx_free); |
| 1074 | INIT_LIST_HEAD(&rxq->rx_used); |
| 1075 | /* Fill the rx_used queue with _all_ of the Rx buffers */ |
| 1076 | for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) { |
| 1077 | /* In the reset function, these buffers may have been allocated |
| 1078 | * to an SKB, so we need to unmap and free potential storage */ |
| 1079 | if (rxq->pool[i].page != NULL) { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1080 | pci_unmap_page(il->pci_dev, rxq->pool[i].page_dma, |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1081 | PAGE_SIZE << il->hw_params.rx_page_order, |
| 1082 | PCI_DMA_FROMDEVICE); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1083 | __il_free_pages(il, rxq->pool[i].page); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1084 | rxq->pool[i].page = NULL; |
| 1085 | } |
| 1086 | list_add_tail(&rxq->pool[i].list, &rxq->rx_used); |
| 1087 | } |
| 1088 | |
| 1089 | /* Set us so that we have processed and used all buffers, but have |
| 1090 | * not restocked the Rx queue with fresh buffers */ |
| 1091 | rxq->read = rxq->write = 0; |
| 1092 | rxq->write_actual = 0; |
| 1093 | rxq->free_count = 0; |
| 1094 | spin_unlock_irqrestore(&rxq->lock, flags); |
| 1095 | } |
| 1096 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1097 | void |
| 1098 | il3945_rx_replenish(void *data) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1099 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1100 | struct il_priv *il = data; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1101 | unsigned long flags; |
| 1102 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1103 | il3945_rx_allocate(il, GFP_KERNEL); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1104 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1105 | spin_lock_irqsave(&il->lock, flags); |
| 1106 | il3945_rx_queue_restock(il); |
| 1107 | spin_unlock_irqrestore(&il->lock, flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1108 | } |
| 1109 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1110 | static void |
| 1111 | il3945_rx_replenish_now(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1112 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1113 | il3945_rx_allocate(il, GFP_ATOMIC); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1114 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1115 | il3945_rx_queue_restock(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1116 | } |
| 1117 | |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1118 | /* Assumes that the skb field of the buffers in 'pool' is kept accurate. |
| 1119 | * If an SKB has been detached, the POOL needs to have its SKB set to NULL |
| 1120 | * This free routine walks the list of POOL entries and if SKB is set to |
| 1121 | * non NULL it is unmapped and freed |
| 1122 | */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1123 | static void |
| 1124 | 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] | 1125 | { |
| 1126 | int i; |
| 1127 | for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) { |
| 1128 | if (rxq->pool[i].page != NULL) { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1129 | pci_unmap_page(il->pci_dev, rxq->pool[i].page_dma, |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1130 | PAGE_SIZE << il->hw_params.rx_page_order, |
| 1131 | PCI_DMA_FROMDEVICE); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1132 | __il_free_pages(il, rxq->pool[i].page); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1133 | rxq->pool[i].page = NULL; |
| 1134 | } |
| 1135 | } |
| 1136 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1137 | 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] | 1138 | rxq->bd_dma); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1139 | 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] | 1140 | rxq->rb_stts, rxq->rb_stts_dma); |
| 1141 | rxq->bd = NULL; |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1142 | rxq->rb_stts = NULL; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1143 | } |
| 1144 | |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1145 | /* Convert linear signal-to-noise ratio into dB */ |
| 1146 | static u8 ratio2dB[100] = { |
| 1147 | /* 0 1 2 3 4 5 6 7 8 9 */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1148 | 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */ |
| 1149 | 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */ |
| 1150 | 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */ |
| 1151 | 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */ |
| 1152 | 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */ |
| 1153 | 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */ |
| 1154 | 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */ |
| 1155 | 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */ |
| 1156 | 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */ |
| 1157 | 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */ |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1158 | }; |
| 1159 | |
| 1160 | /* Calculates a relative dB value from a ratio of linear |
| 1161 | * (i.e. not dB) signal levels. |
| 1162 | * Conversion assumes that levels are voltages (20*log), not powers (10*log). */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1163 | int |
| 1164 | il3945_calc_db_from_ratio(int sig_ratio) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1165 | { |
| 1166 | /* 1000:1 or higher just report as 60 dB */ |
| 1167 | if (sig_ratio >= 1000) |
| 1168 | return 60; |
| 1169 | |
| 1170 | /* 100:1 or higher, divide by 10 and use table, |
| 1171 | * add 20 dB to make up for divide by 10 */ |
| 1172 | if (sig_ratio >= 100) |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1173 | return 20 + (int)ratio2dB[sig_ratio / 10]; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1174 | |
| 1175 | /* We shouldn't see this */ |
| 1176 | if (sig_ratio < 1) |
| 1177 | return 0; |
| 1178 | |
| 1179 | /* Use table for ratios 1:1 - 99:1 */ |
| 1180 | return (int)ratio2dB[sig_ratio]; |
| 1181 | } |
| 1182 | |
| 1183 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1184 | * il3945_rx_handle - Main entry function for receiving responses from uCode |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1185 | * |
Stanislaw Gruszka | d0c7234 | 2011-08-30 15:39:42 +0200 | [diff] [blame] | 1186 | * Uses the il->handlers callback function array to invoke |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1187 | * the appropriate handlers, including command responses, |
| 1188 | * frame-received notifications, and other notifications. |
| 1189 | */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1190 | static void |
| 1191 | il3945_rx_handle(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1192 | { |
Stanislaw Gruszka | b73bb5f | 2011-08-26 14:37:54 +0200 | [diff] [blame] | 1193 | struct il_rx_buf *rxb; |
Stanislaw Gruszka | dcae1c6 | 2011-08-26 14:36:21 +0200 | [diff] [blame] | 1194 | struct il_rx_pkt *pkt; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1195 | struct il_rx_queue *rxq = &il->rxq; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1196 | u32 r, i; |
| 1197 | int reclaim; |
| 1198 | unsigned long flags; |
| 1199 | u8 fill_rx = 0; |
| 1200 | u32 count = 8; |
| 1201 | int total_empty = 0; |
| 1202 | |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1203 | /* 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] | 1204 | * buffer that the driver may process (last buffer filled by ucode). */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1205 | r = le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1206 | i = rxq->read; |
| 1207 | |
| 1208 | /* calculate total frames need to be restock after handling RX */ |
| 1209 | total_empty = r - rxq->write_actual; |
| 1210 | if (total_empty < 0) |
| 1211 | total_empty += RX_QUEUE_SIZE; |
| 1212 | |
| 1213 | if (total_empty > (RX_QUEUE_SIZE / 2)) |
| 1214 | fill_rx = 1; |
| 1215 | /* Rx interrupt, but nothing sent from uCode */ |
| 1216 | if (i == r) |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1217 | D_RX("r = %d, i = %d\n", r, i); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1218 | |
| 1219 | while (i != r) { |
| 1220 | int len; |
| 1221 | |
| 1222 | rxb = rxq->queue[i]; |
| 1223 | |
| 1224 | /* If an RXB doesn't have a Rx queue slot associated with it, |
| 1225 | * then a bug has been introduced in the queue refilling |
| 1226 | * routines -- catch it here */ |
| 1227 | BUG_ON(rxb == NULL); |
| 1228 | |
| 1229 | rxq->queue[i] = NULL; |
| 1230 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1231 | pci_unmap_page(il->pci_dev, rxb->page_dma, |
| 1232 | PAGE_SIZE << il->hw_params.rx_page_order, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1233 | PCI_DMA_FROMDEVICE); |
| 1234 | pkt = rxb_addr(rxb); |
| 1235 | |
Stanislaw Gruszka | e94a409 | 2011-08-31 13:23:20 +0200 | [diff] [blame] | 1236 | len = le32_to_cpu(pkt->len_n_flags) & IL_RX_FRAME_SIZE_MSK; |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1237 | len += sizeof(u32); /* account for status word */ |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1238 | |
| 1239 | /* Reclaim a command buffer only if this packet is a response |
| 1240 | * to a (driver-originated) command. |
| 1241 | * If the packet (e.g. Rx frame) originated from uCode, |
| 1242 | * there is no command buffer to reclaim. |
| 1243 | * Ucode should set SEQ_RX_FRAME bit if ucode-originated, |
| 1244 | * but apparently a few don't get set; catch them here. */ |
| 1245 | reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) && |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1246 | pkt->hdr.cmd != N_STATS && pkt->hdr.cmd != C_TX; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1247 | |
| 1248 | /* Based on type of command response or notification, |
| 1249 | * handle those that need handling via function in |
Stanislaw Gruszka | d0c7234 | 2011-08-30 15:39:42 +0200 | [diff] [blame] | 1250 | * handlers table. See il3945_setup_handlers() */ |
| 1251 | if (il->handlers[pkt->hdr.cmd]) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1252 | D_RX("r = %d, i = %d, %s, 0x%02x\n", r, i, |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1253 | il_get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd); |
Stanislaw Gruszka | d0c7234 | 2011-08-30 15:39:42 +0200 | [diff] [blame] | 1254 | il->isr_stats.handlers[pkt->hdr.cmd]++; |
| 1255 | il->handlers[pkt->hdr.cmd] (il, rxb); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1256 | } else { |
| 1257 | /* No handling needed */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1258 | D_RX("r %d i %d No handler needed for %s, 0x%02x\n", r, |
| 1259 | i, il_get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1260 | } |
| 1261 | |
| 1262 | /* |
| 1263 | * XXX: After here, we should always check rxb->page |
| 1264 | * against NULL before touching it or its virtual |
Stanislaw Gruszka | d0c7234 | 2011-08-30 15:39:42 +0200 | [diff] [blame] | 1265 | * memory (pkt). Because some handler might have |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1266 | * already taken or freed the pages. |
| 1267 | */ |
| 1268 | |
| 1269 | if (reclaim) { |
| 1270 | /* Invoke any callbacks, transfer the buffer to caller, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1271 | * and fire off the (possibly) blocking il_send_cmd() |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1272 | * as we reclaim the driver command queue */ |
| 1273 | if (rxb->page) |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1274 | il_tx_cmd_complete(il, rxb); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1275 | else |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1276 | IL_WARN("Claim null rxb?\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1277 | } |
| 1278 | |
| 1279 | /* Reuse the page if possible. For notification packets and |
| 1280 | * SKBs that fail to Rx correctly, add them back into the |
| 1281 | * rx_free list for reuse later. */ |
| 1282 | spin_lock_irqsave(&rxq->lock, flags); |
| 1283 | if (rxb->page != NULL) { |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1284 | rxb->page_dma = |
| 1285 | pci_map_page(il->pci_dev, rxb->page, 0, |
| 1286 | PAGE_SIZE << il->hw_params. |
| 1287 | rx_page_order, PCI_DMA_FROMDEVICE); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1288 | list_add_tail(&rxb->list, &rxq->rx_free); |
| 1289 | rxq->free_count++; |
| 1290 | } else |
| 1291 | list_add_tail(&rxb->list, &rxq->rx_used); |
| 1292 | |
| 1293 | spin_unlock_irqrestore(&rxq->lock, flags); |
| 1294 | |
| 1295 | i = (i + 1) & RX_QUEUE_MASK; |
| 1296 | /* If there are a lot of unused frames, |
| 1297 | * restock the Rx queue so ucode won't assert. */ |
| 1298 | if (fill_rx) { |
| 1299 | count++; |
| 1300 | if (count >= 8) { |
| 1301 | rxq->read = i; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1302 | il3945_rx_replenish_now(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1303 | count = 0; |
| 1304 | } |
| 1305 | } |
| 1306 | } |
| 1307 | |
| 1308 | /* Backtrack one entry */ |
| 1309 | rxq->read = i; |
| 1310 | if (fill_rx) |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1311 | il3945_rx_replenish_now(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1312 | else |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1313 | il3945_rx_queue_restock(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1314 | } |
| 1315 | |
| 1316 | /* call this function to flush any scheduled tasklet */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1317 | static inline void |
| 1318 | il3945_synchronize_irq(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1319 | { |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1320 | /* wait to make sure we flush pending tasklet */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1321 | synchronize_irq(il->pci_dev->irq); |
| 1322 | tasklet_kill(&il->irq_tasklet); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1323 | } |
| 1324 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1325 | static const char * |
| 1326 | il3945_desc_lookup(int i) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1327 | { |
| 1328 | switch (i) { |
| 1329 | case 1: |
| 1330 | return "FAIL"; |
| 1331 | case 2: |
| 1332 | return "BAD_PARAM"; |
| 1333 | case 3: |
| 1334 | return "BAD_CHECKSUM"; |
| 1335 | case 4: |
| 1336 | return "NMI_INTERRUPT"; |
| 1337 | case 5: |
| 1338 | return "SYSASSERT"; |
| 1339 | case 6: |
| 1340 | return "FATAL_ERROR"; |
| 1341 | } |
| 1342 | |
| 1343 | return "UNKNOWN"; |
| 1344 | } |
| 1345 | |
| 1346 | #define ERROR_START_OFFSET (1 * sizeof(u32)) |
| 1347 | #define ERROR_ELEM_SIZE (7 * sizeof(u32)) |
| 1348 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1349 | void |
| 1350 | il3945_dump_nic_error_log(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1351 | { |
| 1352 | u32 i; |
| 1353 | u32 desc, time, count, base, data1; |
| 1354 | u32 blink1, blink2, ilink1, ilink2; |
| 1355 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1356 | base = le32_to_cpu(il->card_alive.error_event_table_ptr); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1357 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1358 | if (!il3945_hw_valid_rtc_data_addr(base)) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1359 | IL_ERR("Not valid error log pointer 0x%08X\n", base); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1360 | return; |
| 1361 | } |
| 1362 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1363 | count = il_read_targ_mem(il, base); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1364 | |
| 1365 | if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1366 | IL_ERR("Start IWL Error Log Dump:\n"); |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1367 | IL_ERR("Status: 0x%08lX, count: %d\n", il->status, count); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1368 | } |
| 1369 | |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1370 | IL_ERR("Desc Time asrtPC blink2 " |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1371 | "ilink1 nmiPC Line\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1372 | for (i = ERROR_START_OFFSET; |
| 1373 | i < (count * ERROR_ELEM_SIZE) + ERROR_START_OFFSET; |
| 1374 | i += ERROR_ELEM_SIZE) { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1375 | desc = il_read_targ_mem(il, base + i); |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1376 | time = il_read_targ_mem(il, base + i + 1 * sizeof(u32)); |
| 1377 | blink1 = il_read_targ_mem(il, base + i + 2 * sizeof(u32)); |
| 1378 | blink2 = il_read_targ_mem(il, base + i + 3 * sizeof(u32)); |
| 1379 | ilink1 = il_read_targ_mem(il, base + i + 4 * sizeof(u32)); |
| 1380 | ilink2 = il_read_targ_mem(il, base + i + 5 * sizeof(u32)); |
| 1381 | data1 = il_read_targ_mem(il, base + i + 6 * sizeof(u32)); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1382 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1383 | IL_ERR("%-13s (0x%X) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n", |
| 1384 | il3945_desc_lookup(desc), desc, time, blink1, blink2, |
| 1385 | ilink1, ilink2, data1); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1386 | } |
| 1387 | } |
| 1388 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1389 | static void |
| 1390 | il3945_irq_tasklet(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1391 | { |
| 1392 | u32 inta, handled = 0; |
| 1393 | u32 inta_fh; |
| 1394 | unsigned long flags; |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 1395 | #ifdef CONFIG_IWLEGACY_DEBUG |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1396 | u32 inta_mask; |
| 1397 | #endif |
| 1398 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1399 | spin_lock_irqsave(&il->lock, flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1400 | |
| 1401 | /* Ack/clear/reset pending uCode interrupts. |
| 1402 | * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS, |
| 1403 | * and will clear only when CSR_FH_INT_STATUS gets cleared. */ |
Stanislaw Gruszka | 841b2cc | 2011-08-24 15:14:03 +0200 | [diff] [blame] | 1404 | inta = _il_rd(il, CSR_INT); |
| 1405 | _il_wr(il, CSR_INT, inta); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1406 | |
| 1407 | /* Ack/clear/reset pending flow-handler (DMA) interrupts. |
| 1408 | * Any new interrupts that happen after this, either while we're |
| 1409 | * in this tasklet, or later, will show up in next ISR/tasklet. */ |
Stanislaw Gruszka | 841b2cc | 2011-08-24 15:14:03 +0200 | [diff] [blame] | 1410 | inta_fh = _il_rd(il, CSR_FH_INT_STATUS); |
| 1411 | _il_wr(il, CSR_FH_INT_STATUS, inta_fh); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1412 | |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 1413 | #ifdef CONFIG_IWLEGACY_DEBUG |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1414 | if (il_get_debug_level(il) & IL_DL_ISR) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1415 | /* just for debug */ |
Stanislaw Gruszka | 841b2cc | 2011-08-24 15:14:03 +0200 | [diff] [blame] | 1416 | inta_mask = _il_rd(il, CSR_INT_MASK); |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1417 | D_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", inta, |
| 1418 | inta_mask, inta_fh); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1419 | } |
| 1420 | #endif |
| 1421 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1422 | spin_unlock_irqrestore(&il->lock, flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1423 | |
| 1424 | /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not |
| 1425 | * atomic, make sure that inta covers all the interrupts that |
| 1426 | * we've discovered, even if FH interrupt came in just after |
| 1427 | * reading CSR_INT. */ |
| 1428 | if (inta_fh & CSR39_FH_INT_RX_MASK) |
| 1429 | inta |= CSR_INT_BIT_FH_RX; |
| 1430 | if (inta_fh & CSR39_FH_INT_TX_MASK) |
| 1431 | inta |= CSR_INT_BIT_FH_TX; |
| 1432 | |
| 1433 | /* Now service all interrupt bits discovered above. */ |
| 1434 | if (inta & CSR_INT_BIT_HW_ERR) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1435 | IL_ERR("Hardware error detected. Restarting.\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1436 | |
| 1437 | /* Tell the device to stop sending interrupts */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1438 | il_disable_interrupts(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1439 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1440 | il->isr_stats.hw++; |
| 1441 | il_irq_handle_error(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1442 | |
| 1443 | handled |= CSR_INT_BIT_HW_ERR; |
| 1444 | |
| 1445 | return; |
| 1446 | } |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 1447 | #ifdef CONFIG_IWLEGACY_DEBUG |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1448 | if (il_get_debug_level(il) & (IL_DL_ISR)) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1449 | /* NIC fires this, but we don't use it, redundant with WAKEUP */ |
| 1450 | if (inta & CSR_INT_BIT_SCD) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1451 | D_ISR("Scheduler finished to transmit " |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1452 | "the frame/frames.\n"); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1453 | il->isr_stats.sch++; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1454 | } |
| 1455 | |
| 1456 | /* Alive notification via Rx interrupt will do the real work */ |
| 1457 | if (inta & CSR_INT_BIT_ALIVE) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1458 | D_ISR("Alive interrupt\n"); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1459 | il->isr_stats.alive++; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1460 | } |
| 1461 | } |
| 1462 | #endif |
| 1463 | /* Safely ignore these bits for debug checks below */ |
| 1464 | inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE); |
| 1465 | |
| 1466 | /* Error detected by uCode */ |
| 1467 | if (inta & CSR_INT_BIT_SW_ERR) { |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1468 | IL_ERR("Microcode SW error detected. " "Restarting 0x%X.\n", |
| 1469 | inta); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1470 | il->isr_stats.sw++; |
| 1471 | il_irq_handle_error(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1472 | handled |= CSR_INT_BIT_SW_ERR; |
| 1473 | } |
| 1474 | |
| 1475 | /* uCode wakes up after power-down sleep */ |
| 1476 | if (inta & CSR_INT_BIT_WAKEUP) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1477 | D_ISR("Wakeup interrupt\n"); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1478 | il_rx_queue_update_write_ptr(il, &il->rxq); |
| 1479 | il_txq_update_write_ptr(il, &il->txq[0]); |
| 1480 | il_txq_update_write_ptr(il, &il->txq[1]); |
| 1481 | il_txq_update_write_ptr(il, &il->txq[2]); |
| 1482 | il_txq_update_write_ptr(il, &il->txq[3]); |
| 1483 | il_txq_update_write_ptr(il, &il->txq[4]); |
| 1484 | il_txq_update_write_ptr(il, &il->txq[5]); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1485 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1486 | il->isr_stats.wakeup++; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1487 | handled |= CSR_INT_BIT_WAKEUP; |
| 1488 | } |
| 1489 | |
| 1490 | /* All uCode command responses, including Tx command responses, |
| 1491 | * Rx "responses" (frame-received notification), and other |
| 1492 | * notifications from uCode come through here*/ |
| 1493 | if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1494 | il3945_rx_handle(il); |
| 1495 | il->isr_stats.rx++; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1496 | handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX); |
| 1497 | } |
| 1498 | |
| 1499 | if (inta & CSR_INT_BIT_FH_TX) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1500 | D_ISR("Tx interrupt\n"); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1501 | il->isr_stats.tx++; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1502 | |
Stanislaw Gruszka | 841b2cc | 2011-08-24 15:14:03 +0200 | [diff] [blame] | 1503 | _il_wr(il, CSR_FH_INT_STATUS, (1 << 6)); |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1504 | il_wr(il, FH39_TCSR_CREDIT(FH39_SRVC_CHNL), 0x0); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1505 | handled |= CSR_INT_BIT_FH_TX; |
| 1506 | } |
| 1507 | |
| 1508 | if (inta & ~handled) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1509 | IL_ERR("Unhandled INTA bits 0x%08x\n", inta & ~handled); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1510 | il->isr_stats.unhandled++; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1511 | } |
| 1512 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1513 | if (inta & ~il->inta_mask) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1514 | IL_WARN("Disabled INTA bits 0x%08x were pending\n", |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1515 | inta & ~il->inta_mask); |
Stanislaw Gruszka | 53143a1 | 2011-08-31 14:14:18 +0200 | [diff] [blame] | 1516 | IL_WARN(" with inta_fh = 0x%08x\n", inta_fh); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1517 | } |
| 1518 | |
| 1519 | /* Re-enable all interrupts */ |
| 1520 | /* only Re-enable if disabled by irq */ |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 1521 | if (test_bit(S_INT_ENABLED, &il->status)) |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1522 | il_enable_interrupts(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1523 | |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 1524 | #ifdef CONFIG_IWLEGACY_DEBUG |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1525 | if (il_get_debug_level(il) & (IL_DL_ISR)) { |
Stanislaw Gruszka | 841b2cc | 2011-08-24 15:14:03 +0200 | [diff] [blame] | 1526 | inta = _il_rd(il, CSR_INT); |
| 1527 | inta_mask = _il_rd(il, CSR_INT_MASK); |
| 1528 | inta_fh = _il_rd(il, CSR_FH_INT_STATUS); |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1529 | D_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, " |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1530 | "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1531 | } |
| 1532 | #endif |
| 1533 | } |
| 1534 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1535 | static int |
| 1536 | il3945_get_channels_for_scan(struct il_priv *il, enum ieee80211_band band, |
| 1537 | u8 is_active, u8 n_probes, |
| 1538 | struct il3945_scan_channel *scan_ch, |
| 1539 | struct ieee80211_vif *vif) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1540 | { |
| 1541 | struct ieee80211_channel *chan; |
| 1542 | const struct ieee80211_supported_band *sband; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1543 | const struct il_channel_info *ch_info; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1544 | u16 passive_dwell = 0; |
| 1545 | u16 active_dwell = 0; |
| 1546 | int added, i; |
| 1547 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1548 | sband = il_get_hw_mode(il, band); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1549 | if (!sband) |
| 1550 | return 0; |
| 1551 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1552 | active_dwell = il_get_active_dwell_time(il, band, n_probes); |
| 1553 | passive_dwell = il_get_passive_dwell_time(il, band, vif); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1554 | |
| 1555 | if (passive_dwell <= active_dwell) |
| 1556 | passive_dwell = active_dwell + 1; |
| 1557 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1558 | for (i = 0, added = 0; i < il->scan_request->n_channels; i++) { |
| 1559 | chan = il->scan_request->channels[i]; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1560 | |
| 1561 | if (chan->band != band) |
| 1562 | continue; |
| 1563 | |
| 1564 | scan_ch->channel = chan->hw_value; |
| 1565 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1566 | ch_info = il_get_channel_info(il, band, scan_ch->channel); |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1567 | if (!il_is_channel_valid(ch_info)) { |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1568 | D_SCAN("Channel %d is INVALID for this band.\n", |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 1569 | scan_ch->channel); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1570 | continue; |
| 1571 | } |
| 1572 | |
| 1573 | scan_ch->active_dwell = cpu_to_le16(active_dwell); |
| 1574 | scan_ch->passive_dwell = cpu_to_le16(passive_dwell); |
| 1575 | /* If passive , set up for auto-switch |
| 1576 | * and use long active_dwell time. |
| 1577 | */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1578 | if (!is_active || il_is_channel_passive(ch_info) || |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1579 | (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)) { |
| 1580 | scan_ch->type = 0; /* passive */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1581 | if (IL_UCODE_API(il->ucode_ver) == 1) |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1582 | scan_ch->active_dwell = |
| 1583 | cpu_to_le16(passive_dwell - 1); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1584 | } else { |
| 1585 | scan_ch->type = 1; /* active */ |
| 1586 | } |
| 1587 | |
| 1588 | /* Set direct probe bits. These may be used both for active |
| 1589 | * scan channels (probes gets sent right away), |
| 1590 | * or for passive channels (probes get se sent only after |
| 1591 | * hearing clear Rx packet).*/ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1592 | if (IL_UCODE_API(il->ucode_ver) >= 2) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1593 | if (n_probes) |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 1594 | scan_ch->type |= IL39_SCAN_PROBE_MASK(n_probes); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1595 | } else { |
| 1596 | /* uCode v1 does not allow setting direct probe bits on |
| 1597 | * passive channel. */ |
| 1598 | if ((scan_ch->type & 1) && n_probes) |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 1599 | scan_ch->type |= IL39_SCAN_PROBE_MASK(n_probes); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1600 | } |
| 1601 | |
| 1602 | /* Set txpower levels to defaults */ |
| 1603 | scan_ch->tpc.dsp_atten = 110; |
| 1604 | /* scan_pwr_info->tpc.dsp_atten; */ |
| 1605 | |
| 1606 | /*scan_pwr_info->tpc.tx_gain; */ |
| 1607 | if (band == IEEE80211_BAND_5GHZ) |
| 1608 | scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3; |
| 1609 | else { |
| 1610 | scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3)); |
| 1611 | /* NOTE: if we were doing 6Mb OFDM for scans we'd use |
| 1612 | * power level: |
| 1613 | * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3; |
| 1614 | */ |
| 1615 | } |
| 1616 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1617 | D_SCAN("Scanning %d [%s %d]\n", scan_ch->channel, |
| 1618 | (scan_ch->type & 1) ? "ACTIVE" : "PASSIVE", |
| 1619 | (scan_ch->type & 1) ? active_dwell : passive_dwell); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1620 | |
| 1621 | scan_ch++; |
| 1622 | added++; |
| 1623 | } |
| 1624 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1625 | D_SCAN("total channels to scan %d\n", added); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1626 | return added; |
| 1627 | } |
| 1628 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1629 | static void |
| 1630 | il3945_init_hw_rates(struct il_priv *il, struct ieee80211_rate *rates) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1631 | { |
| 1632 | int i; |
| 1633 | |
Stanislaw Gruszka | 2eb0581 | 2011-08-26 16:07:43 +0200 | [diff] [blame] | 1634 | for (i = 0; i < RATE_COUNT_LEGACY; i++) { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1635 | rates[i].bitrate = il3945_rates[i].ieee * 5; |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1636 | rates[i].hw_value = i; /* Rate scaling will work on idxes */ |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1637 | rates[i].hw_value_short = i; |
| 1638 | rates[i].flags = 0; |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 1639 | if (i > IL39_LAST_OFDM_RATE || i < IL_FIRST_OFDM_RATE) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1640 | /* |
| 1641 | * If CCK != 1M then set short preamble rate flag. |
| 1642 | */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1643 | rates[i].flags |= |
| 1644 | (il3945_rates[i].plcp == |
| 1645 | 10) ? 0 : IEEE80211_RATE_SHORT_PREAMBLE; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1646 | } |
| 1647 | } |
| 1648 | } |
| 1649 | |
| 1650 | /****************************************************************************** |
| 1651 | * |
| 1652 | * uCode download functions |
| 1653 | * |
| 1654 | ******************************************************************************/ |
| 1655 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1656 | static void |
| 1657 | il3945_dealloc_ucode_pci(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1658 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1659 | il_free_fw_desc(il->pci_dev, &il->ucode_code); |
| 1660 | il_free_fw_desc(il->pci_dev, &il->ucode_data); |
| 1661 | il_free_fw_desc(il->pci_dev, &il->ucode_data_backup); |
| 1662 | il_free_fw_desc(il->pci_dev, &il->ucode_init); |
| 1663 | il_free_fw_desc(il->pci_dev, &il->ucode_init_data); |
| 1664 | il_free_fw_desc(il->pci_dev, &il->ucode_boot); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1665 | } |
| 1666 | |
| 1667 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1668 | * 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] | 1669 | * looking at all data. |
| 1670 | */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1671 | static int |
| 1672 | 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] | 1673 | { |
| 1674 | u32 val; |
| 1675 | u32 save_len = len; |
| 1676 | int rc = 0; |
| 1677 | u32 errcnt; |
| 1678 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1679 | D_INFO("ucode inst image size is %u\n", len); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1680 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1681 | il_wr(il, HBUS_TARG_MEM_RADDR, IL39_RTC_INST_LOWER_BOUND); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1682 | |
| 1683 | errcnt = 0; |
| 1684 | for (; len > 0; len -= sizeof(u32), image++) { |
| 1685 | /* read data comes through single port, auto-incr addr */ |
| 1686 | /* NOTE: Use the debugless read so we don't flood kernel log |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1687 | * if IL_DL_IO is set */ |
Stanislaw Gruszka | 1c8cae5 | 2011-08-24 15:46:03 +0200 | [diff] [blame] | 1688 | val = _il_rd(il, HBUS_TARG_MEM_RDAT); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1689 | if (val != le32_to_cpu(*image)) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1690 | IL_ERR("uCode INST section is invalid at " |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1691 | "offset 0x%x, is 0x%x, s/b 0x%x\n", |
| 1692 | save_len - len, val, le32_to_cpu(*image)); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1693 | rc = -EIO; |
| 1694 | errcnt++; |
| 1695 | if (errcnt >= 20) |
| 1696 | break; |
| 1697 | } |
| 1698 | } |
| 1699 | |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1700 | if (!errcnt) |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1701 | D_INFO("ucode image in INSTRUCTION memory is good\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1702 | |
| 1703 | return rc; |
| 1704 | } |
| 1705 | |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1706 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1707 | * 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] | 1708 | * using sample data 100 bytes apart. If these sample points are good, |
| 1709 | * it's a pretty good bet that everything between them is good, too. |
| 1710 | */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1711 | static int |
| 1712 | 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] | 1713 | { |
| 1714 | u32 val; |
| 1715 | int rc = 0; |
| 1716 | u32 errcnt = 0; |
| 1717 | u32 i; |
| 1718 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1719 | D_INFO("ucode inst image size is %u\n", len); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1720 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1721 | for (i = 0; i < len; i += 100, image += 100 / sizeof(u32)) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1722 | /* read data comes through single port, auto-incr addr */ |
| 1723 | /* NOTE: Use the debugless read so we don't flood kernel log |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1724 | * if IL_DL_IO is set */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1725 | il_wr(il, HBUS_TARG_MEM_RADDR, i + IL39_RTC_INST_LOWER_BOUND); |
Stanislaw Gruszka | 1c8cae5 | 2011-08-24 15:46:03 +0200 | [diff] [blame] | 1726 | val = _il_rd(il, HBUS_TARG_MEM_RDAT); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1727 | if (val != le32_to_cpu(*image)) { |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1728 | #if 0 /* Enable this if you want to see details */ |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1729 | IL_ERR("uCode INST section is invalid at " |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1730 | "offset 0x%x, is 0x%x, s/b 0x%x\n", i, val, |
| 1731 | *image); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1732 | #endif |
| 1733 | rc = -EIO; |
| 1734 | errcnt++; |
| 1735 | if (errcnt >= 3) |
| 1736 | break; |
| 1737 | } |
| 1738 | } |
| 1739 | |
| 1740 | return rc; |
| 1741 | } |
| 1742 | |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1743 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1744 | * il3945_verify_ucode - determine which instruction image is in SRAM, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1745 | * and verify its contents |
| 1746 | */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1747 | static int |
| 1748 | il3945_verify_ucode(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1749 | { |
| 1750 | __le32 *image; |
| 1751 | u32 len; |
| 1752 | int rc = 0; |
| 1753 | |
| 1754 | /* Try bootstrap */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1755 | image = (__le32 *) il->ucode_boot.v_addr; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1756 | len = il->ucode_boot.len; |
| 1757 | rc = il3945_verify_inst_sparse(il, image, len); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1758 | if (rc == 0) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1759 | D_INFO("Bootstrap uCode is good in inst SRAM\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1760 | return 0; |
| 1761 | } |
| 1762 | |
| 1763 | /* Try initialize */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1764 | image = (__le32 *) il->ucode_init.v_addr; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1765 | len = il->ucode_init.len; |
| 1766 | rc = il3945_verify_inst_sparse(il, image, len); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1767 | if (rc == 0) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1768 | D_INFO("Initialize uCode is good in inst SRAM\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1769 | return 0; |
| 1770 | } |
| 1771 | |
| 1772 | /* Try runtime/protocol */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1773 | image = (__le32 *) il->ucode_code.v_addr; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1774 | len = il->ucode_code.len; |
| 1775 | rc = il3945_verify_inst_sparse(il, image, len); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1776 | if (rc == 0) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1777 | D_INFO("Runtime uCode is good in inst SRAM\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1778 | return 0; |
| 1779 | } |
| 1780 | |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1781 | IL_ERR("NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1782 | |
| 1783 | /* Since nothing seems to match, show first several data entries in |
| 1784 | * instruction SRAM, so maybe visual inspection will give a clue. |
| 1785 | * Selection of bootstrap image (vs. other images) is arbitrary. */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1786 | image = (__le32 *) il->ucode_boot.v_addr; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1787 | len = il->ucode_boot.len; |
| 1788 | rc = il3945_verify_inst_full(il, image, len); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1789 | |
| 1790 | return rc; |
| 1791 | } |
| 1792 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1793 | static void |
| 1794 | il3945_nic_start(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1795 | { |
| 1796 | /* Remove all resets to allow NIC to operate */ |
Stanislaw Gruszka | 841b2cc | 2011-08-24 15:14:03 +0200 | [diff] [blame] | 1797 | _il_wr(il, CSR_RESET, 0); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1798 | } |
| 1799 | |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 1800 | #define IL3945_UCODE_GET(item) \ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1801 | 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] | 1802 | { \ |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 1803 | return le32_to_cpu(ucode->v1.item); \ |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1804 | } |
| 1805 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1806 | static u32 |
| 1807 | il3945_ucode_get_header_size(u32 api_ver) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1808 | { |
| 1809 | return 24; |
| 1810 | } |
| 1811 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1812 | static u8 * |
| 1813 | il3945_ucode_get_data(const struct il_ucode_header *ucode) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1814 | { |
Wey-Yi Guy | be663ab | 2011-02-21 11:27:26 -0800 | [diff] [blame] | 1815 | return (u8 *) ucode->v1.data; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1816 | } |
| 1817 | |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 1818 | IL3945_UCODE_GET(inst_size); |
| 1819 | IL3945_UCODE_GET(data_size); |
| 1820 | IL3945_UCODE_GET(init_size); |
| 1821 | IL3945_UCODE_GET(init_data_size); |
| 1822 | IL3945_UCODE_GET(boot_size); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1823 | |
| 1824 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1825 | * il3945_read_ucode - Read uCode images from disk file. |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1826 | * |
| 1827 | * Copy into buffers for card to fetch via bus-mastering |
| 1828 | */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1829 | static int |
| 1830 | il3945_read_ucode(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1831 | { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1832 | const struct il_ucode_header *ucode; |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1833 | int ret = -EINVAL, idx; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1834 | const struct firmware *ucode_raw; |
| 1835 | /* firmware file name contains uCode/driver compatibility version */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1836 | const char *name_pre = il->cfg->fw_name_pre; |
| 1837 | const unsigned int api_max = il->cfg->ucode_api_max; |
| 1838 | const unsigned int api_min = il->cfg->ucode_api_min; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1839 | char buf[25]; |
| 1840 | u8 *src; |
| 1841 | size_t len; |
| 1842 | u32 api_ver, inst_size, data_size, init_size, init_data_size, boot_size; |
| 1843 | |
| 1844 | /* Ask kernel firmware_class module to get the boot firmware off disk. |
| 1845 | * request_firmware() is synchronous, file is in memory on return. */ |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1846 | for (idx = api_max; idx >= api_min; idx--) { |
| 1847 | sprintf(buf, "%s%u%s", name_pre, idx, ".ucode"); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1848 | ret = request_firmware(&ucode_raw, buf, &il->pci_dev->dev); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1849 | if (ret < 0) { |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1850 | IL_ERR("%s firmware file req failed: %d\n", buf, ret); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1851 | if (ret == -ENOENT) |
| 1852 | continue; |
| 1853 | else |
| 1854 | goto error; |
| 1855 | } else { |
Stanislaw Gruszka | 0c2c885 | 2011-11-15 12:30:17 +0100 | [diff] [blame] | 1856 | if (idx < api_max) |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1857 | IL_ERR("Loaded firmware %s, " |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1858 | "which is deprecated. " |
| 1859 | " Please use API v%u instead.\n", buf, |
| 1860 | api_max); |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 1861 | D_INFO("Got firmware '%s' file " |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1862 | "(%zd bytes) from disk\n", buf, ucode_raw->size); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1863 | break; |
| 1864 | } |
| 1865 | } |
| 1866 | |
| 1867 | if (ret < 0) |
| 1868 | goto error; |
| 1869 | |
| 1870 | /* Make sure that we got at least our header! */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1871 | if (ucode_raw->size < il3945_ucode_get_header_size(1)) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1872 | IL_ERR("File size way too small!\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1873 | ret = -EINVAL; |
| 1874 | goto err_release; |
| 1875 | } |
| 1876 | |
| 1877 | /* Data from ucode file: header followed by uCode images */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1878 | ucode = (struct il_ucode_header *)ucode_raw->data; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1879 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1880 | il->ucode_ver = le32_to_cpu(ucode->ver); |
| 1881 | api_ver = IL_UCODE_API(il->ucode_ver); |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 1882 | inst_size = il3945_ucode_get_inst_size(ucode); |
| 1883 | data_size = il3945_ucode_get_data_size(ucode); |
| 1884 | init_size = il3945_ucode_get_init_size(ucode); |
| 1885 | init_data_size = il3945_ucode_get_init_data_size(ucode); |
| 1886 | boot_size = il3945_ucode_get_boot_size(ucode); |
| 1887 | src = il3945_ucode_get_data(ucode); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1888 | |
| 1889 | /* api_ver should match the api version forming part of the |
| 1890 | * firmware filename ... but we don't check for that and only rely |
| 1891 | * on the API version read from firmware header from here on forward */ |
| 1892 | |
| 1893 | if (api_ver < api_min || api_ver > api_max) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1894 | IL_ERR("Driver unable to support your firmware API. " |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1895 | "Driver supports v%u, firmware is v%u.\n", api_max, |
| 1896 | api_ver); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1897 | il->ucode_ver = 0; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1898 | ret = -EINVAL; |
| 1899 | goto err_release; |
| 1900 | } |
| 1901 | if (api_ver != api_max) |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1902 | IL_ERR("Firmware has old API version. Expected %u, " |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1903 | "got %u. New firmware can be obtained " |
| 1904 | "from http://www.intellinuxwireless.org.\n", api_max, |
| 1905 | api_ver); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1906 | |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 1907 | IL_INFO("loaded firmware version %u.%u.%u.%u\n", |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1908 | IL_UCODE_MAJOR(il->ucode_ver), IL_UCODE_MINOR(il->ucode_ver), |
| 1909 | IL_UCODE_API(il->ucode_ver), IL_UCODE_SERIAL(il->ucode_ver)); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1910 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1911 | snprintf(il->hw->wiphy->fw_version, sizeof(il->hw->wiphy->fw_version), |
| 1912 | "%u.%u.%u.%u", IL_UCODE_MAJOR(il->ucode_ver), |
| 1913 | IL_UCODE_MINOR(il->ucode_ver), IL_UCODE_API(il->ucode_ver), |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1914 | IL_UCODE_SERIAL(il->ucode_ver)); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1915 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1916 | D_INFO("f/w package hdr ucode version raw = 0x%x\n", il->ucode_ver); |
| 1917 | D_INFO("f/w package hdr runtime inst size = %u\n", inst_size); |
| 1918 | D_INFO("f/w package hdr runtime data size = %u\n", data_size); |
| 1919 | D_INFO("f/w package hdr init inst size = %u\n", init_size); |
| 1920 | D_INFO("f/w package hdr init data size = %u\n", init_data_size); |
| 1921 | D_INFO("f/w package hdr boot inst size = %u\n", boot_size); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1922 | |
| 1923 | /* Verify size of file vs. image size info in file's header */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1924 | if (ucode_raw->size != |
| 1925 | il3945_ucode_get_header_size(api_ver) + inst_size + data_size + |
| 1926 | init_size + init_data_size + boot_size) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1927 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1928 | D_INFO("uCode file size %zd does not match expected size\n", |
| 1929 | ucode_raw->size); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1930 | ret = -EINVAL; |
| 1931 | goto err_release; |
| 1932 | } |
| 1933 | |
| 1934 | /* Verify that uCode images will fit in card's SRAM */ |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 1935 | if (inst_size > IL39_MAX_INST_SIZE) { |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1936 | D_INFO("uCode instr len %d too large to fit in\n", inst_size); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1937 | ret = -EINVAL; |
| 1938 | goto err_release; |
| 1939 | } |
| 1940 | |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 1941 | if (data_size > IL39_MAX_DATA_SIZE) { |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1942 | D_INFO("uCode data len %d too large to fit in\n", data_size); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1943 | ret = -EINVAL; |
| 1944 | goto err_release; |
| 1945 | } |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 1946 | if (init_size > IL39_MAX_INST_SIZE) { |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1947 | D_INFO("uCode init instr len %d too large to fit in\n", |
| 1948 | init_size); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1949 | ret = -EINVAL; |
| 1950 | goto err_release; |
| 1951 | } |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 1952 | if (init_data_size > IL39_MAX_DATA_SIZE) { |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1953 | D_INFO("uCode init data len %d too large to fit in\n", |
| 1954 | init_data_size); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1955 | ret = -EINVAL; |
| 1956 | goto err_release; |
| 1957 | } |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 1958 | if (boot_size > IL39_MAX_BSM_SIZE) { |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 1959 | D_INFO("uCode boot instr len %d too large to fit in\n", |
| 1960 | boot_size); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1961 | ret = -EINVAL; |
| 1962 | goto err_release; |
| 1963 | } |
| 1964 | |
| 1965 | /* Allocate ucode buffers for card's bus-master loading ... */ |
| 1966 | |
| 1967 | /* Runtime instructions and 2 copies of data: |
| 1968 | * 1) unmodified from disk |
| 1969 | * 2) backup cache for save/restore during power-downs */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1970 | il->ucode_code.len = inst_size; |
| 1971 | il_alloc_fw_desc(il->pci_dev, &il->ucode_code); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1972 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1973 | il->ucode_data.len = data_size; |
| 1974 | il_alloc_fw_desc(il->pci_dev, &il->ucode_data); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1975 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1976 | il->ucode_data_backup.len = data_size; |
| 1977 | il_alloc_fw_desc(il->pci_dev, &il->ucode_data_backup); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1978 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1979 | if (!il->ucode_code.v_addr || !il->ucode_data.v_addr || |
| 1980 | !il->ucode_data_backup.v_addr) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1981 | goto err_pci_alloc; |
| 1982 | |
| 1983 | /* Initialization instructions and data */ |
| 1984 | if (init_size && init_data_size) { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1985 | il->ucode_init.len = init_size; |
| 1986 | il_alloc_fw_desc(il->pci_dev, &il->ucode_init); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1987 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1988 | il->ucode_init_data.len = init_data_size; |
| 1989 | il_alloc_fw_desc(il->pci_dev, &il->ucode_init_data); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1990 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1991 | 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] | 1992 | goto err_pci_alloc; |
| 1993 | } |
| 1994 | |
| 1995 | /* Bootstrap (instructions only, no data) */ |
| 1996 | if (boot_size) { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 1997 | il->ucode_boot.len = boot_size; |
| 1998 | il_alloc_fw_desc(il->pci_dev, &il->ucode_boot); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 1999 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2000 | if (!il->ucode_boot.v_addr) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2001 | goto err_pci_alloc; |
| 2002 | } |
| 2003 | |
| 2004 | /* Copy images into buffers for card's bus-master reads ... */ |
| 2005 | |
| 2006 | /* Runtime instructions (first block of data in file) */ |
| 2007 | len = inst_size; |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2008 | D_INFO("Copying (but not loading) uCode instr len %zd\n", len); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2009 | memcpy(il->ucode_code.v_addr, src, len); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2010 | src += len; |
| 2011 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2012 | D_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n", |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2013 | il->ucode_code.v_addr, (u32) il->ucode_code.p_addr); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2014 | |
| 2015 | /* Runtime data (2nd block) |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2016 | * NOTE: Copy into backup buffer will be done in il3945_up() */ |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2017 | len = data_size; |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2018 | D_INFO("Copying (but not loading) uCode data len %zd\n", len); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2019 | memcpy(il->ucode_data.v_addr, src, len); |
| 2020 | memcpy(il->ucode_data_backup.v_addr, src, len); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2021 | src += len; |
| 2022 | |
| 2023 | /* Initialization instructions (3rd block) */ |
| 2024 | if (init_size) { |
| 2025 | len = init_size; |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2026 | D_INFO("Copying (but not loading) init instr len %zd\n", len); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2027 | memcpy(il->ucode_init.v_addr, src, len); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2028 | src += len; |
| 2029 | } |
| 2030 | |
| 2031 | /* Initialization data (4th block) */ |
| 2032 | if (init_data_size) { |
| 2033 | len = init_data_size; |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2034 | D_INFO("Copying (but not loading) init data len %zd\n", len); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2035 | memcpy(il->ucode_init_data.v_addr, src, len); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2036 | src += len; |
| 2037 | } |
| 2038 | |
| 2039 | /* Bootstrap instructions (5th block) */ |
| 2040 | len = boot_size; |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2041 | D_INFO("Copying (but not loading) boot instr len %zd\n", len); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2042 | memcpy(il->ucode_boot.v_addr, src, len); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2043 | |
| 2044 | /* We have our copies now, allow OS release its copies */ |
| 2045 | release_firmware(ucode_raw); |
| 2046 | return 0; |
| 2047 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2048 | err_pci_alloc: |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 2049 | IL_ERR("failed to allocate pci memory\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2050 | ret = -ENOMEM; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2051 | il3945_dealloc_ucode_pci(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2052 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2053 | err_release: |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2054 | release_firmware(ucode_raw); |
| 2055 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2056 | error: |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2057 | return ret; |
| 2058 | } |
| 2059 | |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2060 | /** |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2061 | * il3945_set_ucode_ptrs - Set uCode address location |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2062 | * |
| 2063 | * Tell initialization uCode where to find runtime uCode. |
| 2064 | * |
| 2065 | * BSM registers initially contain pointers to initialization uCode. |
| 2066 | * We need to replace them to load runtime uCode inst and data, |
| 2067 | * and to save runtime data when powering down. |
| 2068 | */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2069 | static int |
| 2070 | il3945_set_ucode_ptrs(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2071 | { |
| 2072 | dma_addr_t pinst; |
| 2073 | dma_addr_t pdata; |
| 2074 | |
| 2075 | /* bits 31:0 for 3945 */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2076 | pinst = il->ucode_code.p_addr; |
| 2077 | pdata = il->ucode_data_backup.p_addr; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2078 | |
| 2079 | /* Tell bootstrap uCode where to find image to load */ |
Stanislaw Gruszka | db54eb5 | 2011-08-24 21:06:33 +0200 | [diff] [blame] | 2080 | il_wr_prph(il, BSM_DRAM_INST_PTR_REG, pinst); |
| 2081 | il_wr_prph(il, BSM_DRAM_DATA_PTR_REG, pdata); |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2082 | il_wr_prph(il, BSM_DRAM_DATA_BYTECOUNT_REG, il->ucode_data.len); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2083 | |
| 2084 | /* Inst byte count must be last to set up, bit 31 signals uCode |
| 2085 | * that all new ptr/size info is in place */ |
Stanislaw Gruszka | db54eb5 | 2011-08-24 21:06:33 +0200 | [diff] [blame] | 2086 | il_wr_prph(il, BSM_DRAM_INST_BYTECOUNT_REG, |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2087 | il->ucode_code.len | BSM_DRAM_INST_LOAD); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2088 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2089 | D_INFO("Runtime uCode pointers are set.\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2090 | |
| 2091 | return 0; |
| 2092 | } |
| 2093 | |
| 2094 | /** |
Stanislaw Gruszka | 4d69c75 | 2011-08-30 15:26:35 +0200 | [diff] [blame] | 2095 | * il3945_init_alive_start - Called after N_ALIVE notification received |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2096 | * |
Stanislaw Gruszka | 4d69c75 | 2011-08-30 15:26:35 +0200 | [diff] [blame] | 2097 | * Called after N_ALIVE notification received from "initialize" uCode. |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2098 | * |
| 2099 | * Tell "initialize" uCode to go ahead and load the runtime uCode. |
| 2100 | */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2101 | static void |
| 2102 | il3945_init_alive_start(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2103 | { |
| 2104 | /* Check alive response for "valid" sign from uCode */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2105 | if (il->card_alive_init.is_valid != UCODE_VALID_OK) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2106 | /* We had an error bringing up the hardware, so take it |
| 2107 | * all the way back down so we can try again */ |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2108 | D_INFO("Initialize Alive failed.\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2109 | goto restart; |
| 2110 | } |
| 2111 | |
| 2112 | /* Bootstrap uCode has loaded initialize uCode ... verify inst image. |
| 2113 | * This is a paranoid check, because we would not have gotten the |
| 2114 | * "initialize" alive if code weren't properly loaded. */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2115 | if (il3945_verify_ucode(il)) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2116 | /* Runtime instruction load was bad; |
| 2117 | * take it all the way back down so we can try again */ |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2118 | D_INFO("Bad \"initialize\" uCode load.\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2119 | goto restart; |
| 2120 | } |
| 2121 | |
| 2122 | /* Send pointers to protocol/runtime uCode image ... init code will |
| 2123 | * load and launch runtime uCode, which will send us another "Alive" |
| 2124 | * notification. */ |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2125 | D_INFO("Initialization Alive received.\n"); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2126 | if (il3945_set_ucode_ptrs(il)) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2127 | /* Runtime instruction load won't happen; |
| 2128 | * take it all the way back down so we can try again */ |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2129 | D_INFO("Couldn't set up uCode pointers.\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2130 | goto restart; |
| 2131 | } |
| 2132 | return; |
| 2133 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2134 | restart: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2135 | queue_work(il->workqueue, &il->restart); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2136 | } |
| 2137 | |
| 2138 | /** |
Stanislaw Gruszka | 4d69c75 | 2011-08-30 15:26:35 +0200 | [diff] [blame] | 2139 | * il3945_alive_start - called after N_ALIVE notification received |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2140 | * from protocol/runtime uCode (initialization uCode's |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2141 | * Alive gets handled by il3945_init_alive_start()). |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2142 | */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2143 | static void |
| 2144 | il3945_alive_start(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2145 | { |
| 2146 | int thermal_spin = 0; |
| 2147 | u32 rfkill; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2148 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2149 | D_INFO("Runtime Alive received.\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2150 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2151 | if (il->card_alive.is_valid != UCODE_VALID_OK) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2152 | /* We had an error bringing up the hardware, so take it |
| 2153 | * all the way back down so we can try again */ |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2154 | D_INFO("Alive failed.\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2155 | goto restart; |
| 2156 | } |
| 2157 | |
| 2158 | /* Initialize uCode has loaded Runtime uCode ... verify inst image. |
| 2159 | * This is a paranoid check, because we would not have gotten the |
| 2160 | * "runtime" alive if code weren't properly loaded. */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2161 | if (il3945_verify_ucode(il)) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2162 | /* Runtime instruction load was bad; |
| 2163 | * take it all the way back down so we can try again */ |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2164 | D_INFO("Bad runtime uCode load.\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2165 | goto restart; |
| 2166 | } |
| 2167 | |
Stanislaw Gruszka | db54eb5 | 2011-08-24 21:06:33 +0200 | [diff] [blame] | 2168 | rfkill = il_rd_prph(il, APMG_RFKILL_REG); |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2169 | D_INFO("RFKILL status: 0x%x\n", rfkill); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2170 | |
| 2171 | if (rfkill & 0x1) { |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2172 | clear_bit(S_RF_KILL_HW, &il->status); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2173 | /* if RFKILL is not on, then wait for thermal |
| 2174 | * sensor in adapter to kick in */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2175 | while (il3945_hw_get_temperature(il) == 0) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2176 | thermal_spin++; |
| 2177 | udelay(10); |
| 2178 | } |
| 2179 | |
| 2180 | if (thermal_spin) |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2181 | D_INFO("Thermal calibration took %dus\n", |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2182 | thermal_spin * 10); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2183 | } else |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2184 | set_bit(S_RF_KILL_HW, &il->status); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2185 | |
| 2186 | /* After the ALIVE response, we can send commands to 3945 uCode */ |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2187 | set_bit(S_ALIVE, &il->status); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2188 | |
| 2189 | /* Enable watchdog to monitor the driver tx queues */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2190 | il_setup_watchdog(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2191 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2192 | if (il_is_rfkill(il)) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2193 | return; |
| 2194 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2195 | ieee80211_wake_queues(il->hw); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2196 | |
Stanislaw Gruszka | 2eb0581 | 2011-08-26 16:07:43 +0200 | [diff] [blame] | 2197 | il->active_rate = RATES_MASK_3945; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2198 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2199 | il_power_update_mode(il, true); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2200 | |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 2201 | if (il_is_associated(il)) { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2202 | struct il3945_rxon_cmd *active_rxon = |
Stanislaw Gruszka | c8b0395 | 2012-02-03 17:31:37 +0100 | [diff] [blame] | 2203 | (struct il3945_rxon_cmd *)(&il->active); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2204 | |
Stanislaw Gruszka | c8b0395 | 2012-02-03 17:31:37 +0100 | [diff] [blame] | 2205 | il->staging.filter_flags |= RXON_FILTER_ASSOC_MSK; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2206 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
| 2207 | } else { |
| 2208 | /* Initialize our rx_config data */ |
Stanislaw Gruszka | 8300719 | 2012-02-03 17:31:57 +0100 | [diff] [blame] | 2209 | il_connection_init_rx_config(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2210 | } |
| 2211 | |
| 2212 | /* Configure Bluetooth device coexistence support */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2213 | il_send_bt_config(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2214 | |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2215 | set_bit(S_READY, &il->status); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2216 | |
| 2217 | /* Configure the adapter for unassociated operation */ |
Stanislaw Gruszka | 8300719 | 2012-02-03 17:31:57 +0100 | [diff] [blame] | 2218 | il3945_commit_rxon(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2219 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2220 | il3945_reg_txpower_periodic(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2221 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2222 | D_INFO("ALIVE processing complete.\n"); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2223 | wake_up(&il->wait_command_queue); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2224 | |
| 2225 | return; |
| 2226 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2227 | restart: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2228 | queue_work(il->workqueue, &il->restart); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2229 | } |
| 2230 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2231 | static void il3945_cancel_deferred_work(struct il_priv *il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2232 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2233 | static void |
| 2234 | __il3945_down(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2235 | { |
| 2236 | unsigned long flags; |
| 2237 | int exit_pending; |
| 2238 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2239 | D_INFO(DRV_NAME " is going down\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2240 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2241 | il_scan_cancel_timeout(il, 200); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2242 | |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2243 | exit_pending = test_and_set_bit(S_EXIT_PENDING, &il->status); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2244 | |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2245 | /* 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] | 2246 | * to prevent rearm timer */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2247 | del_timer_sync(&il->watchdog); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2248 | |
| 2249 | /* Station information will now be cleared in device */ |
Stanislaw Gruszka | 8300719 | 2012-02-03 17:31:57 +0100 | [diff] [blame] | 2250 | il_clear_ucode_stations(il); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2251 | il_dealloc_bcast_stations(il); |
| 2252 | il_clear_driver_stations(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2253 | |
| 2254 | /* Unblock any waiting calls */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2255 | wake_up_all(&il->wait_command_queue); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2256 | |
| 2257 | /* Wipe out the EXIT_PENDING status bit if we are not actually |
| 2258 | * exiting the module */ |
| 2259 | if (!exit_pending) |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2260 | clear_bit(S_EXIT_PENDING, &il->status); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2261 | |
| 2262 | /* stop and reset the on-board processor */ |
Stanislaw Gruszka | 841b2cc | 2011-08-24 15:14:03 +0200 | [diff] [blame] | 2263 | _il_wr(il, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2264 | |
| 2265 | /* tell the device to stop sending interrupts */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2266 | spin_lock_irqsave(&il->lock, flags); |
| 2267 | il_disable_interrupts(il); |
| 2268 | spin_unlock_irqrestore(&il->lock, flags); |
| 2269 | il3945_synchronize_irq(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2270 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2271 | if (il->mac80211_registered) |
| 2272 | ieee80211_stop_queues(il->hw); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2273 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2274 | /* If we have not previously called il3945_init() then |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2275 | * clear all bits but the RF Kill bits and return */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2276 | if (!il_is_init(il)) { |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2277 | il->status = |
| 2278 | test_bit(S_RF_KILL_HW, |
| 2279 | &il-> |
| 2280 | status) << S_RF_KILL_HW | |
| 2281 | test_bit(S_GEO_CONFIGURED, |
| 2282 | &il-> |
| 2283 | status) << S_GEO_CONFIGURED | |
| 2284 | test_bit(S_EXIT_PENDING, &il->status) << S_EXIT_PENDING; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2285 | goto exit; |
| 2286 | } |
| 2287 | |
| 2288 | /* ...otherwise clear out all the status bits but the RF Kill |
| 2289 | * bit and continue taking the NIC down. */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2290 | il->status &= |
| 2291 | test_bit(S_RF_KILL_HW, |
| 2292 | &il->status) << S_RF_KILL_HW | test_bit(S_GEO_CONFIGURED, |
| 2293 | &il-> |
| 2294 | status) << |
| 2295 | S_GEO_CONFIGURED | test_bit(S_FW_ERROR, |
| 2296 | &il-> |
| 2297 | status) << S_FW_ERROR | |
| 2298 | test_bit(S_EXIT_PENDING, &il->status) << S_EXIT_PENDING; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2299 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2300 | il3945_hw_txq_ctx_stop(il); |
| 2301 | il3945_hw_rxq_stop(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2302 | |
| 2303 | /* Power-down device's busmaster DMA clocks */ |
Stanislaw Gruszka | db54eb5 | 2011-08-24 21:06:33 +0200 | [diff] [blame] | 2304 | 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] | 2305 | udelay(5); |
| 2306 | |
| 2307 | /* Stop the device, and put it in low power state */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2308 | il_apm_stop(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2309 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2310 | exit: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2311 | memset(&il->card_alive, 0, sizeof(struct il_alive_resp)); |
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->beacon_skb) |
| 2314 | dev_kfree_skb(il->beacon_skb); |
| 2315 | il->beacon_skb = NULL; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2316 | |
| 2317 | /* clear out any free frames */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2318 | il3945_clear_free_frames(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2319 | } |
| 2320 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2321 | static void |
| 2322 | il3945_down(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2323 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2324 | mutex_lock(&il->mutex); |
| 2325 | __il3945_down(il); |
| 2326 | mutex_unlock(&il->mutex); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2327 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2328 | il3945_cancel_deferred_work(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2329 | } |
| 2330 | |
| 2331 | #define MAX_HW_RESTARTS 5 |
| 2332 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2333 | static int |
| 2334 | il3945_alloc_bcast_station(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2335 | { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2336 | unsigned long flags; |
| 2337 | u8 sta_id; |
| 2338 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2339 | spin_lock_irqsave(&il->sta_lock, flags); |
Stanislaw Gruszka | 8300719 | 2012-02-03 17:31:57 +0100 | [diff] [blame] | 2340 | sta_id = il_prep_station(il, il_bcast_addr, false, NULL); |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2341 | if (sta_id == IL_INVALID_STATION) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 2342 | IL_ERR("Unable to prepare broadcast station\n"); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2343 | spin_unlock_irqrestore(&il->sta_lock, flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2344 | |
| 2345 | return -EINVAL; |
| 2346 | } |
| 2347 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2348 | il->stations[sta_id].used |= IL_STA_DRIVER_ACTIVE; |
| 2349 | il->stations[sta_id].used |= IL_STA_BCAST; |
| 2350 | spin_unlock_irqrestore(&il->sta_lock, flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2351 | |
| 2352 | return 0; |
| 2353 | } |
| 2354 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2355 | static int |
| 2356 | __il3945_up(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2357 | { |
| 2358 | int rc, i; |
| 2359 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2360 | rc = il3945_alloc_bcast_station(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2361 | if (rc) |
| 2362 | return rc; |
| 2363 | |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2364 | if (test_bit(S_EXIT_PENDING, &il->status)) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 2365 | IL_WARN("Exit pending; will not bring the NIC up\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2366 | return -EIO; |
| 2367 | } |
| 2368 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2369 | if (!il->ucode_data_backup.v_addr || !il->ucode_data.v_addr) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 2370 | IL_ERR("ucode not available for device bring up\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2371 | return -EIO; |
| 2372 | } |
| 2373 | |
| 2374 | /* If platform's RF_KILL switch is NOT set to KILL */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2375 | if (_il_rd(il, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2376 | clear_bit(S_RF_KILL_HW, &il->status); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2377 | else { |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2378 | set_bit(S_RF_KILL_HW, &il->status); |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 2379 | IL_WARN("Radio disabled by HW RF Kill switch\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2380 | return -ENODEV; |
| 2381 | } |
| 2382 | |
Stanislaw Gruszka | 841b2cc | 2011-08-24 15:14:03 +0200 | [diff] [blame] | 2383 | _il_wr(il, CSR_INT, 0xFFFFFFFF); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2384 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2385 | rc = il3945_hw_nic_init(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2386 | if (rc) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 2387 | IL_ERR("Unable to int nic\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2388 | return rc; |
| 2389 | } |
| 2390 | |
| 2391 | /* make sure rfkill handshake bits are cleared */ |
Stanislaw Gruszka | 841b2cc | 2011-08-24 15:14:03 +0200 | [diff] [blame] | 2392 | _il_wr(il, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2393 | _il_wr(il, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2394 | |
| 2395 | /* clear (again), then enable host interrupts */ |
Stanislaw Gruszka | 841b2cc | 2011-08-24 15:14:03 +0200 | [diff] [blame] | 2396 | _il_wr(il, CSR_INT, 0xFFFFFFFF); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2397 | il_enable_interrupts(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2398 | |
| 2399 | /* really make sure rfkill handshake bits are cleared */ |
Stanislaw Gruszka | 841b2cc | 2011-08-24 15:14:03 +0200 | [diff] [blame] | 2400 | _il_wr(il, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
| 2401 | _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] | 2402 | |
| 2403 | /* Copy original ucode data image from disk into backup cache. |
| 2404 | * This will be used to initialize the on-board processor's |
| 2405 | * data SRAM for a clean start when the runtime program first loads. */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2406 | memcpy(il->ucode_data_backup.v_addr, il->ucode_data.v_addr, |
| 2407 | il->ucode_data.len); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2408 | |
| 2409 | /* 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] | 2410 | if (test_bit(S_RF_KILL_HW, &il->status)) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2411 | return 0; |
| 2412 | |
| 2413 | for (i = 0; i < MAX_HW_RESTARTS; i++) { |
| 2414 | |
| 2415 | /* load bootstrap state machine, |
| 2416 | * load bootstrap program into processor's memory, |
| 2417 | * prepare to load the "initialize" uCode */ |
Stanislaw Gruszka | c39ae9f | 2012-02-03 17:31:58 +0100 | [diff] [blame^] | 2418 | rc = il->ops->lib->load_ucode(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2419 | |
| 2420 | if (rc) { |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2421 | IL_ERR("Unable to set up bootstrap uCode: %d\n", rc); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2422 | continue; |
| 2423 | } |
| 2424 | |
| 2425 | /* start card; "initialize" will load runtime ucode */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2426 | il3945_nic_start(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2427 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2428 | D_INFO(DRV_NAME " is coming up\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2429 | |
| 2430 | return 0; |
| 2431 | } |
| 2432 | |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2433 | set_bit(S_EXIT_PENDING, &il->status); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2434 | __il3945_down(il); |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2435 | clear_bit(S_EXIT_PENDING, &il->status); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2436 | |
| 2437 | /* tried to restart and config the device for as long as our |
| 2438 | * patience could withstand */ |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 2439 | IL_ERR("Unable to initialize device after %d attempts.\n", i); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2440 | return -EIO; |
| 2441 | } |
| 2442 | |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2443 | /***************************************************************************** |
| 2444 | * |
| 2445 | * Workqueue callbacks |
| 2446 | * |
| 2447 | *****************************************************************************/ |
| 2448 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2449 | static void |
| 2450 | il3945_bg_init_alive_start(struct work_struct *data) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2451 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2452 | struct il_priv *il = |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2453 | container_of(data, struct il_priv, init_alive_start.work); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2454 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2455 | mutex_lock(&il->mutex); |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2456 | if (test_bit(S_EXIT_PENDING, &il->status)) |
Stanislaw Gruszka | 28a6e57 | 2011-04-28 11:51:32 +0200 | [diff] [blame] | 2457 | goto out; |
| 2458 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2459 | il3945_init_alive_start(il); |
Stanislaw Gruszka | 28a6e57 | 2011-04-28 11:51:32 +0200 | [diff] [blame] | 2460 | out: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2461 | mutex_unlock(&il->mutex); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2462 | } |
| 2463 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2464 | static void |
| 2465 | il3945_bg_alive_start(struct work_struct *data) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2466 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2467 | struct il_priv *il = |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2468 | container_of(data, struct il_priv, alive_start.work); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2469 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2470 | mutex_lock(&il->mutex); |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2471 | if (test_bit(S_EXIT_PENDING, &il->status)) |
Stanislaw Gruszka | 28a6e57 | 2011-04-28 11:51:32 +0200 | [diff] [blame] | 2472 | goto out; |
| 2473 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2474 | il3945_alive_start(il); |
Stanislaw Gruszka | 28a6e57 | 2011-04-28 11:51:32 +0200 | [diff] [blame] | 2475 | out: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2476 | mutex_unlock(&il->mutex); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2477 | } |
| 2478 | |
| 2479 | /* |
| 2480 | * 3945 cannot interrupt driver when hardware rf kill switch toggles; |
| 2481 | * driver must poll CSR_GP_CNTRL_REG register for change. This register |
| 2482 | * *is* readable even when device has been SW_RESET into low power mode |
| 2483 | * (e.g. during RF KILL). |
| 2484 | */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2485 | static void |
| 2486 | il3945_rfkill_poll(struct work_struct *data) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2487 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2488 | struct il_priv *il = |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2489 | container_of(data, struct il_priv, _3945.rfkill_poll.work); |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2490 | bool old_rfkill = test_bit(S_RF_KILL_HW, &il->status); |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2491 | bool new_rfkill = |
| 2492 | !(_il_rd(il, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2493 | |
| 2494 | if (new_rfkill != old_rfkill) { |
| 2495 | if (new_rfkill) |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2496 | set_bit(S_RF_KILL_HW, &il->status); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2497 | else |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2498 | clear_bit(S_RF_KILL_HW, &il->status); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2499 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2500 | wiphy_rfkill_set_hw_state(il->hw->wiphy, new_rfkill); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2501 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2502 | D_RF_KILL("RF_KILL bit toggled to %s.\n", |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2503 | new_rfkill ? "disable radio" : "enable radio"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2504 | } |
| 2505 | |
| 2506 | /* Keep this running, even if radio now enabled. This will be |
| 2507 | * cancelled in mac_start() if system decides to start again */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2508 | queue_delayed_work(il->workqueue, &il->_3945.rfkill_poll, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2509 | round_jiffies_relative(2 * HZ)); |
| 2510 | |
| 2511 | } |
| 2512 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2513 | int |
| 2514 | il3945_request_scan(struct il_priv *il, struct ieee80211_vif *vif) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2515 | { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2516 | struct il_host_cmd cmd = { |
Stanislaw Gruszka | 4d69c75 | 2011-08-30 15:26:35 +0200 | [diff] [blame] | 2517 | .id = C_SCAN, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2518 | .len = sizeof(struct il3945_scan_cmd), |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2519 | .flags = CMD_SIZE_HUGE, |
| 2520 | }; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2521 | struct il3945_scan_cmd *scan; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2522 | u8 n_probes = 0; |
| 2523 | enum ieee80211_band band; |
| 2524 | bool is_active = false; |
| 2525 | int ret; |
Stanislaw Gruszka | dd6d2a8 | 2011-06-08 15:28:26 +0200 | [diff] [blame] | 2526 | u16 len; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2527 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2528 | lockdep_assert_held(&il->mutex); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2529 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2530 | if (!il->scan_cmd) { |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2531 | il->scan_cmd = |
| 2532 | kmalloc(sizeof(struct il3945_scan_cmd) + IL_MAX_SCAN_SIZE, |
| 2533 | GFP_KERNEL); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2534 | if (!il->scan_cmd) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2535 | D_SCAN("Fail to allocate scan memory\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2536 | return -ENOMEM; |
| 2537 | } |
| 2538 | } |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2539 | scan = il->scan_cmd; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2540 | 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] | 2541 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2542 | scan->quiet_plcp_th = IL_PLCP_QUIET_THRESH; |
| 2543 | scan->quiet_time = IL_ACTIVE_QUIET_TIME; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2544 | |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 2545 | if (il_is_associated(il)) { |
Stanislaw Gruszka | dd6d2a8 | 2011-06-08 15:28:26 +0200 | [diff] [blame] | 2546 | u16 interval; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2547 | u32 extra; |
| 2548 | u32 suspend_time = 100; |
| 2549 | u32 scan_suspend_time = 100; |
| 2550 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2551 | D_INFO("Scanning while associated...\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2552 | |
Stanislaw Gruszka | dd6d2a8 | 2011-06-08 15:28:26 +0200 | [diff] [blame] | 2553 | interval = vif->bss_conf.beacon_int; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2554 | |
| 2555 | scan->suspend_time = 0; |
| 2556 | scan->max_out_time = cpu_to_le32(200 * 1024); |
| 2557 | if (!interval) |
| 2558 | interval = suspend_time; |
| 2559 | /* |
| 2560 | * suspend time format: |
| 2561 | * 0-19: beacon interval in usec (time before exec.) |
| 2562 | * 20-23: 0 |
| 2563 | * 24-31: number of beacons (suspend between channels) |
| 2564 | */ |
| 2565 | |
| 2566 | extra = (suspend_time / interval) << 24; |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2567 | scan_suspend_time = |
| 2568 | 0xFF0FFFFF & (extra | ((suspend_time % interval) * 1024)); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2569 | |
| 2570 | scan->suspend_time = cpu_to_le32(scan_suspend_time); |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2571 | D_SCAN("suspend_time 0x%X beacon interval %d\n", |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2572 | scan_suspend_time, interval); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2573 | } |
| 2574 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2575 | if (il->scan_request->n_ssids) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2576 | int i, p = 0; |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2577 | D_SCAN("Kicking off active scan\n"); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2578 | for (i = 0; i < il->scan_request->n_ssids; i++) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2579 | /* always does wildcard anyway */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2580 | if (!il->scan_request->ssids[i].ssid_len) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2581 | continue; |
| 2582 | scan->direct_scan[p].id = WLAN_EID_SSID; |
| 2583 | scan->direct_scan[p].len = |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2584 | il->scan_request->ssids[i].ssid_len; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2585 | memcpy(scan->direct_scan[p].ssid, |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2586 | il->scan_request->ssids[i].ssid, |
| 2587 | il->scan_request->ssids[i].ssid_len); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2588 | n_probes++; |
| 2589 | p++; |
| 2590 | } |
| 2591 | is_active = true; |
| 2592 | } else |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2593 | D_SCAN("Kicking off passive scan.\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2594 | |
| 2595 | /* We don't build a direct scan probe request; the uCode will do |
| 2596 | * that based on the direct_mask added to each channel entry */ |
| 2597 | scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK; |
Stanislaw Gruszka | b16db50 | 2012-02-03 17:31:44 +0100 | [diff] [blame] | 2598 | scan->tx_cmd.sta_id = il->hw_params.bcast_id; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2599 | scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; |
| 2600 | |
| 2601 | /* flags + rate selection */ |
| 2602 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2603 | switch (il->scan_band) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2604 | case IEEE80211_BAND_2GHZ: |
| 2605 | scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK; |
Stanislaw Gruszka | 2eb0581 | 2011-08-26 16:07:43 +0200 | [diff] [blame] | 2606 | scan->tx_cmd.rate = RATE_1M_PLCP; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2607 | band = IEEE80211_BAND_2GHZ; |
| 2608 | break; |
| 2609 | case IEEE80211_BAND_5GHZ: |
Stanislaw Gruszka | 2eb0581 | 2011-08-26 16:07:43 +0200 | [diff] [blame] | 2610 | scan->tx_cmd.rate = RATE_6M_PLCP; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2611 | band = IEEE80211_BAND_5GHZ; |
| 2612 | break; |
| 2613 | default: |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 2614 | IL_WARN("Invalid scan band\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2615 | return -EIO; |
| 2616 | } |
| 2617 | |
| 2618 | /* |
Stanislaw Gruszka | 68acc4a | 2011-12-23 08:13:50 +0100 | [diff] [blame] | 2619 | * If active scaning is requested but a certain channel is marked |
| 2620 | * passive, we can do active scanning if we detect transmissions. For |
| 2621 | * passive only scanning disable switching to active on any channel. |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2622 | */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2623 | scan->good_CRC_th = |
Stanislaw Gruszka | 68acc4a | 2011-12-23 08:13:50 +0100 | [diff] [blame] | 2624 | is_active ? IL_GOOD_CRC_TH_DEFAULT : IL_GOOD_CRC_TH_NEVER; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2625 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2626 | len = |
| 2627 | il_fill_probe_req(il, (struct ieee80211_mgmt *)scan->data, |
| 2628 | vif->addr, il->scan_request->ie, |
| 2629 | il->scan_request->ie_len, |
| 2630 | IL_MAX_SCAN_SIZE - sizeof(*scan)); |
Stanislaw Gruszka | dd6d2a8 | 2011-06-08 15:28:26 +0200 | [diff] [blame] | 2631 | scan->tx_cmd.len = cpu_to_le16(len); |
| 2632 | |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2633 | /* select Rx antennas */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2634 | scan->flags |= il3945_get_antenna_flags(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2635 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2636 | scan->channel_count = |
| 2637 | il3945_get_channels_for_scan(il, band, is_active, n_probes, |
| 2638 | (void *)&scan->data[len], vif); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2639 | if (scan->channel_count == 0) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2640 | D_SCAN("channel count %d\n", scan->channel_count); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2641 | return -EIO; |
| 2642 | } |
| 2643 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2644 | cmd.len += |
| 2645 | le16_to_cpu(scan->tx_cmd.len) + |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2646 | scan->channel_count * sizeof(struct il3945_scan_channel); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2647 | cmd.data = scan; |
| 2648 | scan->len = cpu_to_le16(cmd.len); |
| 2649 | |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2650 | set_bit(S_SCAN_HW, &il->status); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2651 | ret = il_send_cmd_sync(il, &cmd); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2652 | if (ret) |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2653 | clear_bit(S_SCAN_HW, &il->status); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2654 | return ret; |
| 2655 | } |
| 2656 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2657 | void |
| 2658 | il3945_post_scan(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2659 | { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2660 | /* |
| 2661 | * Since setting the RXON may have been deferred while |
| 2662 | * performing the scan, fire one off if needed |
| 2663 | */ |
Stanislaw Gruszka | c8b0395 | 2012-02-03 17:31:37 +0100 | [diff] [blame] | 2664 | if (memcmp(&il->staging, &il->active, sizeof(il->staging))) |
Stanislaw Gruszka | 8300719 | 2012-02-03 17:31:57 +0100 | [diff] [blame] | 2665 | il3945_commit_rxon(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2666 | } |
| 2667 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2668 | static void |
| 2669 | il3945_bg_restart(struct work_struct *data) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2670 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2671 | struct il_priv *il = container_of(data, struct il_priv, restart); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2672 | |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2673 | if (test_bit(S_EXIT_PENDING, &il->status)) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2674 | return; |
| 2675 | |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2676 | if (test_and_clear_bit(S_FW_ERROR, &il->status)) { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2677 | mutex_lock(&il->mutex); |
Stanislaw Gruszka | 8300719 | 2012-02-03 17:31:57 +0100 | [diff] [blame] | 2678 | /* FIXME: vif can be dereferenced */ |
| 2679 | il->vif = NULL; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2680 | il->is_open = 0; |
| 2681 | mutex_unlock(&il->mutex); |
| 2682 | il3945_down(il); |
| 2683 | ieee80211_restart_hw(il->hw); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2684 | } else { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2685 | il3945_down(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2686 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2687 | mutex_lock(&il->mutex); |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2688 | if (test_bit(S_EXIT_PENDING, &il->status)) { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2689 | mutex_unlock(&il->mutex); |
Stanislaw Gruszka | 28a6e57 | 2011-04-28 11:51:32 +0200 | [diff] [blame] | 2690 | return; |
| 2691 | } |
| 2692 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2693 | __il3945_up(il); |
| 2694 | mutex_unlock(&il->mutex); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2695 | } |
| 2696 | } |
| 2697 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2698 | static void |
| 2699 | il3945_bg_rx_replenish(struct work_struct *data) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2700 | { |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2701 | struct il_priv *il = container_of(data, struct il_priv, rx_replenish); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2702 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2703 | mutex_lock(&il->mutex); |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2704 | if (test_bit(S_EXIT_PENDING, &il->status)) |
Stanislaw Gruszka | 28a6e57 | 2011-04-28 11:51:32 +0200 | [diff] [blame] | 2705 | goto out; |
| 2706 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2707 | il3945_rx_replenish(il); |
Stanislaw Gruszka | 28a6e57 | 2011-04-28 11:51:32 +0200 | [diff] [blame] | 2708 | out: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2709 | mutex_unlock(&il->mutex); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2710 | } |
| 2711 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2712 | void |
| 2713 | il3945_post_associate(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2714 | { |
| 2715 | int rc = 0; |
| 2716 | struct ieee80211_conf *conf = NULL; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2717 | |
Stanislaw Gruszka | 8300719 | 2012-02-03 17:31:57 +0100 | [diff] [blame] | 2718 | if (!il->vif || !il->is_open) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2719 | return; |
| 2720 | |
Stanislaw Gruszka | 8300719 | 2012-02-03 17:31:57 +0100 | [diff] [blame] | 2721 | D_ASSOC("Associated as %d to: %pM\n", il->vif->bss_conf.aid, |
Stanislaw Gruszka | c8b0395 | 2012-02-03 17:31:37 +0100 | [diff] [blame] | 2722 | il->active.bssid_addr); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2723 | |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2724 | if (test_bit(S_EXIT_PENDING, &il->status)) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2725 | return; |
| 2726 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2727 | il_scan_cancel_timeout(il, 200); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2728 | |
Stanislaw Gruszka | 6278dda | 2011-08-31 11:13:05 +0200 | [diff] [blame] | 2729 | conf = &il->hw->conf; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2730 | |
Stanislaw Gruszka | c8b0395 | 2012-02-03 17:31:37 +0100 | [diff] [blame] | 2731 | il->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
Stanislaw Gruszka | 8300719 | 2012-02-03 17:31:57 +0100 | [diff] [blame] | 2732 | il3945_commit_rxon(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2733 | |
Stanislaw Gruszka | 8300719 | 2012-02-03 17:31:57 +0100 | [diff] [blame] | 2734 | rc = il_send_rxon_timing(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2735 | if (rc) |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2736 | IL_WARN("C_RXON_TIMING failed - " "Attempting to continue.\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2737 | |
Stanislaw Gruszka | c8b0395 | 2012-02-03 17:31:37 +0100 | [diff] [blame] | 2738 | il->staging.filter_flags |= RXON_FILTER_ASSOC_MSK; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2739 | |
Stanislaw Gruszka | 8300719 | 2012-02-03 17:31:57 +0100 | [diff] [blame] | 2740 | il->staging.assoc_id = cpu_to_le16(il->vif->bss_conf.aid); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2741 | |
Stanislaw Gruszka | 8300719 | 2012-02-03 17:31:57 +0100 | [diff] [blame] | 2742 | D_ASSOC("assoc id %d beacon interval %d\n", il->vif->bss_conf.aid, |
| 2743 | il->vif->bss_conf.beacon_int); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2744 | |
Stanislaw Gruszka | 8300719 | 2012-02-03 17:31:57 +0100 | [diff] [blame] | 2745 | if (il->vif->bss_conf.use_short_preamble) |
Stanislaw Gruszka | c8b0395 | 2012-02-03 17:31:37 +0100 | [diff] [blame] | 2746 | il->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2747 | else |
Stanislaw Gruszka | c8b0395 | 2012-02-03 17:31:37 +0100 | [diff] [blame] | 2748 | il->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2749 | |
Stanislaw Gruszka | c8b0395 | 2012-02-03 17:31:37 +0100 | [diff] [blame] | 2750 | if (il->staging.flags & RXON_FLG_BAND_24G_MSK) { |
Stanislaw Gruszka | 8300719 | 2012-02-03 17:31:57 +0100 | [diff] [blame] | 2751 | if (il->vif->bss_conf.use_short_slot) |
Stanislaw Gruszka | c8b0395 | 2012-02-03 17:31:37 +0100 | [diff] [blame] | 2752 | il->staging.flags |= RXON_FLG_SHORT_SLOT_MSK; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2753 | else |
Stanislaw Gruszka | c8b0395 | 2012-02-03 17:31:37 +0100 | [diff] [blame] | 2754 | il->staging.flags &= ~RXON_FLG_SHORT_SLOT_MSK; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2755 | } |
| 2756 | |
Stanislaw Gruszka | 8300719 | 2012-02-03 17:31:57 +0100 | [diff] [blame] | 2757 | il3945_commit_rxon(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2758 | |
Stanislaw Gruszka | 8300719 | 2012-02-03 17:31:57 +0100 | [diff] [blame] | 2759 | switch (il->vif->type) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2760 | case NL80211_IFTYPE_STATION: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2761 | il3945_rate_scale_init(il->hw, IL_AP_ID); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2762 | break; |
| 2763 | case NL80211_IFTYPE_ADHOC: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2764 | il3945_send_beacon_cmd(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2765 | break; |
| 2766 | default: |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2767 | IL_ERR("%s Should not be called in %d mode\n", __func__, |
Stanislaw Gruszka | 8300719 | 2012-02-03 17:31:57 +0100 | [diff] [blame] | 2768 | il->vif->type); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2769 | break; |
| 2770 | } |
| 2771 | } |
| 2772 | |
| 2773 | /***************************************************************************** |
| 2774 | * |
| 2775 | * mac80211 entry point functions |
| 2776 | * |
| 2777 | *****************************************************************************/ |
| 2778 | |
| 2779 | #define UCODE_READY_TIMEOUT (2 * HZ) |
| 2780 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2781 | static int |
| 2782 | il3945_mac_start(struct ieee80211_hw *hw) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2783 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2784 | struct il_priv *il = hw->priv; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2785 | int ret; |
| 2786 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2787 | D_MAC80211("enter\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2788 | |
| 2789 | /* we should be verifying the device is ready to be opened */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2790 | mutex_lock(&il->mutex); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2791 | |
| 2792 | /* fetch ucode file from disk, alloc and copy to bus-master buffers ... |
| 2793 | * ucode filename and max sizes are card-specific. */ |
| 2794 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2795 | if (!il->ucode_code.len) { |
| 2796 | ret = il3945_read_ucode(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2797 | if (ret) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 2798 | IL_ERR("Could not read microcode: %d\n", ret); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2799 | mutex_unlock(&il->mutex); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2800 | goto out_release_irq; |
| 2801 | } |
| 2802 | } |
| 2803 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2804 | ret = __il3945_up(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2805 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2806 | mutex_unlock(&il->mutex); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2807 | |
| 2808 | if (ret) |
| 2809 | goto out_release_irq; |
| 2810 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2811 | D_INFO("Start UP work.\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2812 | |
| 2813 | /* Wait for START_ALIVE from ucode. Otherwise callbacks from |
| 2814 | * mac80211 will not be run successfully. */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2815 | ret = wait_event_timeout(il->wait_command_queue, |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2816 | test_bit(S_READY, &il->status), |
| 2817 | UCODE_READY_TIMEOUT); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2818 | if (!ret) { |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2819 | if (!test_bit(S_READY, &il->status)) { |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2820 | IL_ERR("Wait for START_ALIVE timeout after %dms.\n", |
| 2821 | jiffies_to_msecs(UCODE_READY_TIMEOUT)); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2822 | ret = -ETIMEDOUT; |
| 2823 | goto out_release_irq; |
| 2824 | } |
| 2825 | } |
| 2826 | |
| 2827 | /* ucode is running and will send rfkill notifications, |
| 2828 | * no need to poll the killswitch state anymore */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2829 | cancel_delayed_work(&il->_3945.rfkill_poll); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2830 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2831 | il->is_open = 1; |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2832 | D_MAC80211("leave\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2833 | return 0; |
| 2834 | |
| 2835 | out_release_irq: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2836 | il->is_open = 0; |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2837 | D_MAC80211("leave - failed\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2838 | return ret; |
| 2839 | } |
| 2840 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2841 | static void |
| 2842 | il3945_mac_stop(struct ieee80211_hw *hw) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2843 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2844 | struct il_priv *il = hw->priv; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2845 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2846 | D_MAC80211("enter\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2847 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2848 | if (!il->is_open) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2849 | D_MAC80211("leave - skip\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2850 | return; |
| 2851 | } |
| 2852 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2853 | il->is_open = 0; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2854 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2855 | il3945_down(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2856 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2857 | flush_workqueue(il->workqueue); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2858 | |
| 2859 | /* start polling the killswitch state again */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2860 | queue_delayed_work(il->workqueue, &il->_3945.rfkill_poll, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2861 | round_jiffies_relative(2 * HZ)); |
| 2862 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2863 | D_MAC80211("leave\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2864 | } |
| 2865 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2866 | static void |
| 2867 | il3945_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2868 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2869 | struct il_priv *il = hw->priv; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2870 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2871 | D_MAC80211("enter\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2872 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2873 | D_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len, |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2874 | ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2875 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2876 | if (il3945_tx_skb(il, skb)) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2877 | dev_kfree_skb_any(skb); |
| 2878 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2879 | D_MAC80211("leave\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2880 | } |
| 2881 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2882 | void |
| 2883 | il3945_config_ap(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2884 | { |
Stanislaw Gruszka | 8300719 | 2012-02-03 17:31:57 +0100 | [diff] [blame] | 2885 | struct ieee80211_vif *vif = il->vif; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2886 | int rc = 0; |
| 2887 | |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 2888 | if (test_bit(S_EXIT_PENDING, &il->status)) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2889 | return; |
| 2890 | |
| 2891 | /* The following should be done only at AP bring up */ |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 2892 | if (!(il_is_associated(il))) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2893 | |
| 2894 | /* RXON - unassoc (to set timing command) */ |
Stanislaw Gruszka | c8b0395 | 2012-02-03 17:31:37 +0100 | [diff] [blame] | 2895 | il->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
Stanislaw Gruszka | 8300719 | 2012-02-03 17:31:57 +0100 | [diff] [blame] | 2896 | il3945_commit_rxon(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2897 | |
| 2898 | /* RXON Timing */ |
Stanislaw Gruszka | 8300719 | 2012-02-03 17:31:57 +0100 | [diff] [blame] | 2899 | rc = il_send_rxon_timing(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2900 | if (rc) |
Stanislaw Gruszka | 4d69c75 | 2011-08-30 15:26:35 +0200 | [diff] [blame] | 2901 | IL_WARN("C_RXON_TIMING failed - " |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2902 | "Attempting to continue.\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2903 | |
Stanislaw Gruszka | c8b0395 | 2012-02-03 17:31:37 +0100 | [diff] [blame] | 2904 | il->staging.assoc_id = 0; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2905 | |
| 2906 | if (vif->bss_conf.use_short_preamble) |
Stanislaw Gruszka | c8b0395 | 2012-02-03 17:31:37 +0100 | [diff] [blame] | 2907 | il->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2908 | else |
Stanislaw Gruszka | c8b0395 | 2012-02-03 17:31:37 +0100 | [diff] [blame] | 2909 | il->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2910 | |
Stanislaw Gruszka | c8b0395 | 2012-02-03 17:31:37 +0100 | [diff] [blame] | 2911 | if (il->staging.flags & RXON_FLG_BAND_24G_MSK) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2912 | if (vif->bss_conf.use_short_slot) |
Stanislaw Gruszka | c8b0395 | 2012-02-03 17:31:37 +0100 | [diff] [blame] | 2913 | il->staging.flags |= RXON_FLG_SHORT_SLOT_MSK; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2914 | else |
Stanislaw Gruszka | c8b0395 | 2012-02-03 17:31:37 +0100 | [diff] [blame] | 2915 | il->staging.flags &= ~RXON_FLG_SHORT_SLOT_MSK; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2916 | } |
| 2917 | /* restore RXON assoc */ |
Stanislaw Gruszka | c8b0395 | 2012-02-03 17:31:37 +0100 | [diff] [blame] | 2918 | il->staging.filter_flags |= RXON_FILTER_ASSOC_MSK; |
Stanislaw Gruszka | 8300719 | 2012-02-03 17:31:57 +0100 | [diff] [blame] | 2919 | il3945_commit_rxon(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2920 | } |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2921 | il3945_send_beacon_cmd(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2922 | } |
| 2923 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2924 | static int |
| 2925 | il3945_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
| 2926 | struct ieee80211_vif *vif, struct ieee80211_sta *sta, |
| 2927 | struct ieee80211_key_conf *key) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2928 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2929 | struct il_priv *il = hw->priv; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2930 | int ret = 0; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2931 | u8 sta_id = IL_INVALID_STATION; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2932 | u8 static_key; |
| 2933 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2934 | D_MAC80211("enter\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2935 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2936 | if (il3945_mod_params.sw_crypto) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2937 | D_MAC80211("leave - hwcrypto disabled\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2938 | return -EOPNOTSUPP; |
| 2939 | } |
| 2940 | |
| 2941 | /* |
| 2942 | * To support IBSS RSN, don't program group keys in IBSS, the |
| 2943 | * hardware will then not attempt to decrypt the frames. |
| 2944 | */ |
| 2945 | if (vif->type == NL80211_IFTYPE_ADHOC && |
| 2946 | !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) |
| 2947 | return -EOPNOTSUPP; |
| 2948 | |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 2949 | static_key = !il_is_associated(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2950 | |
| 2951 | if (!static_key) { |
Stanislaw Gruszka | 8300719 | 2012-02-03 17:31:57 +0100 | [diff] [blame] | 2952 | sta_id = il_sta_id_or_broadcast(il, sta); |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2953 | if (sta_id == IL_INVALID_STATION) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2954 | return -EINVAL; |
| 2955 | } |
| 2956 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2957 | mutex_lock(&il->mutex); |
| 2958 | il_scan_cancel_timeout(il, 100); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2959 | |
| 2960 | switch (cmd) { |
| 2961 | case SET_KEY: |
| 2962 | if (static_key) |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2963 | ret = il3945_set_static_key(il, key); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2964 | else |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2965 | ret = il3945_set_dynamic_key(il, key, sta_id); |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2966 | D_MAC80211("enable hwcrypto key\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2967 | break; |
| 2968 | case DISABLE_KEY: |
| 2969 | if (static_key) |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2970 | ret = il3945_remove_static_key(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2971 | else |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2972 | ret = il3945_clear_sta_key_info(il, sta_id); |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2973 | D_MAC80211("disable hwcrypto key\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2974 | break; |
| 2975 | default: |
| 2976 | ret = -EINVAL; |
| 2977 | } |
| 2978 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2979 | mutex_unlock(&il->mutex); |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 2980 | D_MAC80211("leave\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2981 | |
| 2982 | return ret; |
| 2983 | } |
| 2984 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2985 | static int |
| 2986 | il3945_mac_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif, |
| 2987 | struct ieee80211_sta *sta) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2988 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2989 | struct il_priv *il = hw->priv; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2990 | struct il3945_sta_priv *sta_priv = (void *)sta->drv_priv; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2991 | int ret; |
| 2992 | bool is_ap = vif->type == NL80211_IFTYPE_STATION; |
| 2993 | u8 sta_id; |
| 2994 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2995 | D_INFO("received request to add station %pM\n", sta->addr); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 2996 | mutex_lock(&il->mutex); |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 2997 | D_INFO("proceeding to add station %pM\n", sta->addr); |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 2998 | sta_priv->common.sta_id = IL_INVALID_STATION; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 2999 | |
Stanislaw Gruszka | 8300719 | 2012-02-03 17:31:57 +0100 | [diff] [blame] | 3000 | ret = il_add_station_common(il, sta->addr, is_ap, sta, &sta_id); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3001 | if (ret) { |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3002 | IL_ERR("Unable to add station %pM (%d)\n", sta->addr, ret); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3003 | /* Should we return success if return code is EEXIST ? */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3004 | mutex_unlock(&il->mutex); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3005 | return ret; |
| 3006 | } |
| 3007 | |
| 3008 | sta_priv->common.sta_id = sta_id; |
| 3009 | |
| 3010 | /* Initialize rate scaling */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3011 | D_INFO("Initializing rate scaling for station %pM\n", sta->addr); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3012 | il3945_rs_rate_init(il, sta, sta_id); |
| 3013 | mutex_unlock(&il->mutex); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3014 | |
| 3015 | return 0; |
| 3016 | } |
| 3017 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3018 | static void |
| 3019 | il3945_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags, |
| 3020 | unsigned int *total_flags, u64 multicast) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3021 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3022 | struct il_priv *il = hw->priv; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3023 | __le32 filter_or = 0, filter_nand = 0; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3024 | |
| 3025 | #define CHK(test, flag) do { \ |
| 3026 | if (*total_flags & (test)) \ |
| 3027 | filter_or |= (flag); \ |
| 3028 | else \ |
| 3029 | filter_nand |= (flag); \ |
| 3030 | } while (0) |
| 3031 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3032 | D_MAC80211("Enter: changed: 0x%x, total: 0x%x\n", changed_flags, |
| 3033 | *total_flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3034 | |
| 3035 | CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK); |
| 3036 | CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK); |
| 3037 | CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK); |
| 3038 | |
| 3039 | #undef CHK |
| 3040 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3041 | mutex_lock(&il->mutex); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3042 | |
Stanislaw Gruszka | c8b0395 | 2012-02-03 17:31:37 +0100 | [diff] [blame] | 3043 | il->staging.filter_flags &= ~filter_nand; |
| 3044 | il->staging.filter_flags |= filter_or; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3045 | |
| 3046 | /* |
| 3047 | * Not committing directly because hardware can perform a scan, |
| 3048 | * but even if hw is ready, committing here breaks for some reason, |
| 3049 | * we'll eventually commit the filter flags change anyway. |
| 3050 | */ |
| 3051 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3052 | mutex_unlock(&il->mutex); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3053 | |
| 3054 | /* |
| 3055 | * Receiving all multicast frames is always enabled by the |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3056 | * default flags setup in il_connection_init_rx_config() |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3057 | * since we currently do not support programming multicast |
| 3058 | * filters into the device. |
| 3059 | */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3060 | *total_flags &= |
| 3061 | FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS | |
| 3062 | FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3063 | } |
| 3064 | |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3065 | /***************************************************************************** |
| 3066 | * |
| 3067 | * sysfs attributes |
| 3068 | * |
| 3069 | *****************************************************************************/ |
| 3070 | |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 3071 | #ifdef CONFIG_IWLEGACY_DEBUG |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3072 | |
| 3073 | /* |
| 3074 | * The following adds a new attribute to the sysfs representation |
| 3075 | * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/) |
| 3076 | * used for controlling the debug level. |
| 3077 | * |
| 3078 | * See the level definitions in iwl for details. |
| 3079 | * |
| 3080 | * The debug_level being managed using sysfs below is a per device debug |
| 3081 | * level that is used instead of the global debug level if it (the per |
| 3082 | * device debug level) is set. |
| 3083 | */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3084 | static ssize_t |
| 3085 | il3945_show_debug_level(struct device *d, struct device_attribute *attr, |
| 3086 | char *buf) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3087 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3088 | struct il_priv *il = dev_get_drvdata(d); |
| 3089 | return sprintf(buf, "0x%08X\n", il_get_debug_level(il)); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3090 | } |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3091 | |
| 3092 | static ssize_t |
| 3093 | il3945_store_debug_level(struct device *d, struct device_attribute *attr, |
| 3094 | const char *buf, size_t count) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3095 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3096 | struct il_priv *il = dev_get_drvdata(d); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3097 | unsigned long val; |
| 3098 | int ret; |
| 3099 | |
| 3100 | ret = strict_strtoul(buf, 0, &val); |
| 3101 | if (ret) |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 3102 | 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] | 3103 | else { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3104 | il->debug_level = val; |
| 3105 | if (il_alloc_traffic_mem(il)) |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3106 | IL_ERR("Not enough memory to generate traffic log\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3107 | } |
| 3108 | return strnlen(buf, count); |
| 3109 | } |
| 3110 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3111 | static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO, il3945_show_debug_level, |
| 3112 | il3945_store_debug_level); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3113 | |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 3114 | #endif /* CONFIG_IWLEGACY_DEBUG */ |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3115 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3116 | static ssize_t |
| 3117 | il3945_show_temperature(struct device *d, struct device_attribute *attr, |
| 3118 | char *buf) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3119 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3120 | struct il_priv *il = dev_get_drvdata(d); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3121 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3122 | if (!il_is_alive(il)) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3123 | return -EAGAIN; |
| 3124 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3125 | return sprintf(buf, "%d\n", il3945_hw_get_temperature(il)); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3126 | } |
| 3127 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3128 | static DEVICE_ATTR(temperature, S_IRUGO, il3945_show_temperature, NULL); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3129 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3130 | static ssize_t |
| 3131 | il3945_show_tx_power(struct device *d, struct device_attribute *attr, char *buf) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 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, "%d\n", il->tx_power_user_lmt); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3135 | } |
| 3136 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3137 | static ssize_t |
| 3138 | il3945_store_tx_power(struct device *d, struct device_attribute *attr, |
| 3139 | const char *buf, size_t count) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3140 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3141 | struct il_priv *il = dev_get_drvdata(d); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3142 | char *p = (char *)buf; |
| 3143 | u32 val; |
| 3144 | |
| 3145 | val = simple_strtoul(p, &p, 10); |
| 3146 | if (p == buf) |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 3147 | IL_INFO(": %s is not in decimal form.\n", buf); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3148 | else |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3149 | il3945_hw_reg_set_txpower(il, val); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3150 | |
| 3151 | return count; |
| 3152 | } |
| 3153 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3154 | static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, il3945_show_tx_power, |
| 3155 | il3945_store_tx_power); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3156 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3157 | static ssize_t |
| 3158 | il3945_show_flags(struct device *d, struct device_attribute *attr, char *buf) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3159 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3160 | struct il_priv *il = dev_get_drvdata(d); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3161 | |
Stanislaw Gruszka | c8b0395 | 2012-02-03 17:31:37 +0100 | [diff] [blame] | 3162 | return sprintf(buf, "0x%04X\n", il->active.flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3163 | } |
| 3164 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3165 | static ssize_t |
| 3166 | il3945_store_flags(struct device *d, struct device_attribute *attr, |
| 3167 | const char *buf, size_t count) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3168 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3169 | struct il_priv *il = dev_get_drvdata(d); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3170 | u32 flags = simple_strtoul(buf, NULL, 0); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3171 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3172 | mutex_lock(&il->mutex); |
Stanislaw Gruszka | c8b0395 | 2012-02-03 17:31:37 +0100 | [diff] [blame] | 3173 | if (le32_to_cpu(il->staging.flags) != flags) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3174 | /* Cancel any currently running scans... */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3175 | if (il_scan_cancel_timeout(il, 100)) |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 3176 | IL_WARN("Could not cancel scan.\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3177 | else { |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3178 | D_INFO("Committing rxon.flags = 0x%04X\n", flags); |
Stanislaw Gruszka | c8b0395 | 2012-02-03 17:31:37 +0100 | [diff] [blame] | 3179 | il->staging.flags = cpu_to_le32(flags); |
Stanislaw Gruszka | 8300719 | 2012-02-03 17:31:57 +0100 | [diff] [blame] | 3180 | il3945_commit_rxon(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3181 | } |
| 3182 | } |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3183 | mutex_unlock(&il->mutex); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3184 | |
| 3185 | return count; |
| 3186 | } |
| 3187 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3188 | static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, il3945_show_flags, |
| 3189 | il3945_store_flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3190 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3191 | static ssize_t |
| 3192 | il3945_show_filter_flags(struct device *d, struct device_attribute *attr, |
| 3193 | char *buf) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3194 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3195 | struct il_priv *il = dev_get_drvdata(d); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3196 | |
Stanislaw Gruszka | c8b0395 | 2012-02-03 17:31:37 +0100 | [diff] [blame] | 3197 | return sprintf(buf, "0x%04X\n", le32_to_cpu(il->active.filter_flags)); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3198 | } |
| 3199 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3200 | static ssize_t |
| 3201 | il3945_store_filter_flags(struct device *d, struct device_attribute *attr, |
| 3202 | const char *buf, size_t count) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3203 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3204 | struct il_priv *il = dev_get_drvdata(d); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3205 | u32 filter_flags = simple_strtoul(buf, NULL, 0); |
| 3206 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3207 | mutex_lock(&il->mutex); |
Stanislaw Gruszka | c8b0395 | 2012-02-03 17:31:37 +0100 | [diff] [blame] | 3208 | if (le32_to_cpu(il->staging.filter_flags) != filter_flags) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3209 | /* Cancel any currently running scans... */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3210 | if (il_scan_cancel_timeout(il, 100)) |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 3211 | IL_WARN("Could not cancel scan.\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3212 | else { |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3213 | D_INFO("Committing rxon.filter_flags = " "0x%04X\n", |
| 3214 | filter_flags); |
Stanislaw Gruszka | c8b0395 | 2012-02-03 17:31:37 +0100 | [diff] [blame] | 3215 | il->staging.filter_flags = cpu_to_le32(filter_flags); |
Stanislaw Gruszka | 8300719 | 2012-02-03 17:31:57 +0100 | [diff] [blame] | 3216 | il3945_commit_rxon(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3217 | } |
| 3218 | } |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3219 | mutex_unlock(&il->mutex); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3220 | |
| 3221 | return count; |
| 3222 | } |
| 3223 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3224 | static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, il3945_show_filter_flags, |
| 3225 | il3945_store_filter_flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3226 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3227 | static ssize_t |
| 3228 | il3945_show_measurement(struct device *d, struct device_attribute *attr, |
| 3229 | char *buf) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3230 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3231 | struct il_priv *il = dev_get_drvdata(d); |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3232 | struct il_spectrum_notification measure_report; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3233 | u32 size = sizeof(measure_report), len = 0, ofs = 0; |
Stanislaw Gruszka | 1722f8e | 2011-11-15 14:51:01 +0100 | [diff] [blame] | 3234 | u8 *data = (u8 *) &measure_report; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3235 | unsigned long flags; |
| 3236 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3237 | spin_lock_irqsave(&il->lock, flags); |
| 3238 | if (!(il->measurement_status & MEASUREMENT_READY)) { |
| 3239 | spin_unlock_irqrestore(&il->lock, flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3240 | return 0; |
| 3241 | } |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3242 | memcpy(&measure_report, &il->measure_report, size); |
| 3243 | il->measurement_status = 0; |
| 3244 | spin_unlock_irqrestore(&il->lock, flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3245 | |
Stanislaw Gruszka | 232913b | 2011-08-26 10:45:16 +0200 | [diff] [blame] | 3246 | while (size && PAGE_SIZE - len) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3247 | hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len, |
| 3248 | PAGE_SIZE - len, 1); |
| 3249 | len = strlen(buf); |
| 3250 | if (PAGE_SIZE - len) |
| 3251 | buf[len++] = '\n'; |
| 3252 | |
| 3253 | ofs += 16; |
| 3254 | size -= min(size, 16U); |
| 3255 | } |
| 3256 | |
| 3257 | return len; |
| 3258 | } |
| 3259 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3260 | static ssize_t |
| 3261 | il3945_store_measurement(struct device *d, struct device_attribute *attr, |
| 3262 | const char *buf, size_t count) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3263 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3264 | struct il_priv *il = dev_get_drvdata(d); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3265 | struct ieee80211_measurement_params params = { |
Stanislaw Gruszka | c8b0395 | 2012-02-03 17:31:37 +0100 | [diff] [blame] | 3266 | .channel = le16_to_cpu(il->active.channel), |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3267 | .start_time = cpu_to_le64(il->_3945.last_tsf), |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3268 | .duration = cpu_to_le16(1), |
| 3269 | }; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3270 | u8 type = IL_MEASURE_BASIC; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3271 | u8 buffer[32]; |
| 3272 | u8 channel; |
| 3273 | |
| 3274 | if (count) { |
| 3275 | char *p = buffer; |
| 3276 | strncpy(buffer, buf, min(sizeof(buffer), count)); |
| 3277 | channel = simple_strtoul(p, NULL, 0); |
| 3278 | if (channel) |
| 3279 | params.channel = channel; |
| 3280 | |
| 3281 | p = buffer; |
| 3282 | while (*p && *p != ' ') |
| 3283 | p++; |
| 3284 | if (*p) |
| 3285 | type = simple_strtoul(p + 1, NULL, 0); |
| 3286 | } |
| 3287 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3288 | D_INFO("Invoking measurement of type %d on " "channel %d (for '%s')\n", |
| 3289 | type, params.channel, buf); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3290 | il3945_get_measurement(il, ¶ms, type); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3291 | |
| 3292 | return count; |
| 3293 | } |
| 3294 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3295 | static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR, il3945_show_measurement, |
| 3296 | il3945_store_measurement); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3297 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3298 | static ssize_t |
| 3299 | il3945_store_retry_rate(struct device *d, struct device_attribute *attr, |
| 3300 | const char *buf, size_t count) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3301 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3302 | struct il_priv *il = dev_get_drvdata(d); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3303 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3304 | il->retry_rate = simple_strtoul(buf, NULL, 0); |
| 3305 | if (il->retry_rate <= 0) |
| 3306 | il->retry_rate = 1; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3307 | |
| 3308 | return count; |
| 3309 | } |
| 3310 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3311 | static ssize_t |
| 3312 | il3945_show_retry_rate(struct device *d, struct device_attribute *attr, |
| 3313 | char *buf) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3314 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3315 | struct il_priv *il = dev_get_drvdata(d); |
| 3316 | return sprintf(buf, "%d", il->retry_rate); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3317 | } |
| 3318 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3319 | static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, il3945_show_retry_rate, |
| 3320 | il3945_store_retry_rate); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3321 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3322 | static ssize_t |
| 3323 | il3945_show_channels(struct device *d, struct device_attribute *attr, char *buf) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3324 | { |
| 3325 | /* all this shit doesn't belong into sysfs anyway */ |
| 3326 | return 0; |
| 3327 | } |
| 3328 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3329 | static DEVICE_ATTR(channels, S_IRUSR, il3945_show_channels, NULL); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3330 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3331 | static ssize_t |
| 3332 | il3945_show_antenna(struct device *d, struct device_attribute *attr, char *buf) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3333 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3334 | struct il_priv *il = dev_get_drvdata(d); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3335 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3336 | if (!il_is_alive(il)) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3337 | return -EAGAIN; |
| 3338 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3339 | return sprintf(buf, "%d\n", il3945_mod_params.antenna); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3340 | } |
| 3341 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3342 | static ssize_t |
| 3343 | il3945_store_antenna(struct device *d, struct device_attribute *attr, |
| 3344 | const char *buf, size_t count) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3345 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3346 | struct il_priv *il __maybe_unused = dev_get_drvdata(d); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3347 | int ant; |
| 3348 | |
| 3349 | if (count == 0) |
| 3350 | return 0; |
| 3351 | |
| 3352 | if (sscanf(buf, "%1i", &ant) != 1) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 3353 | D_INFO("not in hex or decimal form.\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3354 | return count; |
| 3355 | } |
| 3356 | |
Stanislaw Gruszka | 232913b | 2011-08-26 10:45:16 +0200 | [diff] [blame] | 3357 | if (ant >= 0 && ant <= 2) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 3358 | D_INFO("Setting antenna select to %d.\n", ant); |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3359 | il3945_mod_params.antenna = (enum il3945_antenna)ant; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3360 | } else |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 3361 | D_INFO("Bad antenna select value %d.\n", ant); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3362 | |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3363 | return count; |
| 3364 | } |
| 3365 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3366 | static DEVICE_ATTR(antenna, S_IWUSR | S_IRUGO, il3945_show_antenna, |
| 3367 | il3945_store_antenna); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3368 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3369 | static ssize_t |
| 3370 | il3945_show_status(struct device *d, struct device_attribute *attr, char *buf) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3371 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3372 | struct il_priv *il = dev_get_drvdata(d); |
| 3373 | if (!il_is_alive(il)) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3374 | return -EAGAIN; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3375 | return sprintf(buf, "0x%08x\n", (int)il->status); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3376 | } |
| 3377 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3378 | static DEVICE_ATTR(status, S_IRUGO, il3945_show_status, NULL); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3379 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3380 | static ssize_t |
| 3381 | il3945_dump_error_log(struct device *d, struct device_attribute *attr, |
| 3382 | const char *buf, size_t count) |
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 | struct il_priv *il = dev_get_drvdata(d); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3385 | char *p = (char *)buf; |
| 3386 | |
| 3387 | if (p[0] == '1') |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3388 | il3945_dump_nic_error_log(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3389 | |
| 3390 | return strnlen(buf, count); |
| 3391 | } |
| 3392 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3393 | 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] | 3394 | |
| 3395 | /***************************************************************************** |
| 3396 | * |
| 3397 | * driver setup and tear down |
| 3398 | * |
| 3399 | *****************************************************************************/ |
| 3400 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3401 | static void |
| 3402 | il3945_setup_deferred_work(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3403 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3404 | il->workqueue = create_singlethread_workqueue(DRV_NAME); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3405 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3406 | init_waitqueue_head(&il->wait_command_queue); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3407 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3408 | INIT_WORK(&il->restart, il3945_bg_restart); |
| 3409 | INIT_WORK(&il->rx_replenish, il3945_bg_rx_replenish); |
| 3410 | INIT_DELAYED_WORK(&il->init_alive_start, il3945_bg_init_alive_start); |
| 3411 | INIT_DELAYED_WORK(&il->alive_start, il3945_bg_alive_start); |
| 3412 | INIT_DELAYED_WORK(&il->_3945.rfkill_poll, il3945_rfkill_poll); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3413 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3414 | il_setup_scan_deferred_work(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3415 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3416 | il3945_hw_setup_deferred_work(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3417 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3418 | init_timer(&il->watchdog); |
| 3419 | il->watchdog.data = (unsigned long)il; |
| 3420 | il->watchdog.function = il_bg_watchdog; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3421 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3422 | tasklet_init(&il->irq_tasklet, |
| 3423 | (void (*)(unsigned long))il3945_irq_tasklet, |
| 3424 | (unsigned long)il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3425 | } |
| 3426 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3427 | static void |
| 3428 | il3945_cancel_deferred_work(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3429 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3430 | il3945_hw_cancel_deferred_work(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3431 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3432 | cancel_delayed_work_sync(&il->init_alive_start); |
| 3433 | cancel_delayed_work(&il->alive_start); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3434 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3435 | il_cancel_scan_deferred_work(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3436 | } |
| 3437 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3438 | static struct attribute *il3945_sysfs_entries[] = { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3439 | &dev_attr_antenna.attr, |
| 3440 | &dev_attr_channels.attr, |
| 3441 | &dev_attr_dump_errors.attr, |
| 3442 | &dev_attr_flags.attr, |
| 3443 | &dev_attr_filter_flags.attr, |
| 3444 | &dev_attr_measurement.attr, |
| 3445 | &dev_attr_retry_rate.attr, |
| 3446 | &dev_attr_status.attr, |
| 3447 | &dev_attr_temperature.attr, |
| 3448 | &dev_attr_tx_power.attr, |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 3449 | #ifdef CONFIG_IWLEGACY_DEBUG |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3450 | &dev_attr_debug_level.attr, |
| 3451 | #endif |
| 3452 | NULL |
| 3453 | }; |
| 3454 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3455 | static struct attribute_group il3945_attribute_group = { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3456 | .name = NULL, /* put in device directory */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3457 | .attrs = il3945_sysfs_entries, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3458 | }; |
| 3459 | |
Stanislaw Gruszka | c39ae9f | 2012-02-03 17:31:58 +0100 | [diff] [blame^] | 3460 | struct ieee80211_ops il3945_mac_ops = { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3461 | .tx = il3945_mac_tx, |
| 3462 | .start = il3945_mac_start, |
| 3463 | .stop = il3945_mac_stop, |
| 3464 | .add_interface = il_mac_add_interface, |
| 3465 | .remove_interface = il_mac_remove_interface, |
| 3466 | .change_interface = il_mac_change_interface, |
| 3467 | .config = il_mac_config, |
| 3468 | .configure_filter = il3945_configure_filter, |
| 3469 | .set_key = il3945_mac_set_key, |
| 3470 | .conf_tx = il_mac_conf_tx, |
| 3471 | .reset_tsf = il_mac_reset_tsf, |
| 3472 | .bss_info_changed = il_mac_bss_info_changed, |
| 3473 | .hw_scan = il_mac_hw_scan, |
| 3474 | .sta_add = il3945_mac_sta_add, |
| 3475 | .sta_remove = il_mac_sta_remove, |
| 3476 | .tx_last_beacon = il_mac_tx_last_beacon, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3477 | }; |
| 3478 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3479 | static int |
| 3480 | il3945_init_drv(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3481 | { |
| 3482 | int ret; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3483 | struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3484 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3485 | il->retry_rate = 1; |
| 3486 | il->beacon_skb = NULL; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3487 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3488 | spin_lock_init(&il->sta_lock); |
| 3489 | spin_lock_init(&il->hcmd_lock); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3490 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3491 | INIT_LIST_HEAD(&il->free_frames); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3492 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3493 | mutex_init(&il->mutex); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3494 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3495 | il->ieee_channels = NULL; |
| 3496 | il->ieee_rates = NULL; |
| 3497 | il->band = IEEE80211_BAND_2GHZ; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3498 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3499 | il->iw_mode = NL80211_IFTYPE_STATION; |
| 3500 | il->missed_beacon_threshold = IL_MISSED_BEACON_THRESHOLD_DEF; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3501 | |
| 3502 | /* initialize force reset */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3503 | il->force_reset.reset_duration = IL_DELAY_NEXT_FORCE_FW_RELOAD; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3504 | |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3505 | if (eeprom->version < EEPROM_3945_EEPROM_VERSION) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 3506 | IL_WARN("Unsupported EEPROM version: 0x%04X\n", |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3507 | eeprom->version); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3508 | ret = -EINVAL; |
| 3509 | goto err; |
| 3510 | } |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3511 | ret = il_init_channel_map(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3512 | if (ret) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 3513 | IL_ERR("initializing regulatory failed: %d\n", ret); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3514 | goto err; |
| 3515 | } |
| 3516 | |
| 3517 | /* Set up txpower settings in driver for all channels */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3518 | if (il3945_txpower_set_from_eeprom(il)) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3519 | ret = -EIO; |
| 3520 | goto err_free_channel_map; |
| 3521 | } |
| 3522 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3523 | ret = il_init_geos(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3524 | if (ret) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 3525 | IL_ERR("initializing geos failed: %d\n", ret); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3526 | goto err_free_channel_map; |
| 3527 | } |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3528 | il3945_init_hw_rates(il, il->ieee_rates); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3529 | |
| 3530 | return 0; |
| 3531 | |
| 3532 | err_free_channel_map: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3533 | il_free_channel_map(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3534 | err: |
| 3535 | return ret; |
| 3536 | } |
| 3537 | |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 3538 | #define IL3945_MAX_PROBE_REQUEST 200 |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3539 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3540 | static int |
| 3541 | il3945_setup_mac(struct il_priv *il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3542 | { |
| 3543 | int ret; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3544 | struct ieee80211_hw *hw = il->hw; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3545 | |
| 3546 | hw->rate_control_algorithm = "iwl-3945-rs"; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3547 | hw->sta_data_size = sizeof(struct il3945_sta_priv); |
| 3548 | hw->vif_data_size = sizeof(struct il_vif_priv); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3549 | |
| 3550 | /* Tell mac80211 our characteristics */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3551 | hw->flags = IEEE80211_HW_SIGNAL_DBM | IEEE80211_HW_SPECTRUM_MGMT; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3552 | |
Stanislaw Gruszka | 8c9c48d | 2012-02-03 17:31:50 +0100 | [diff] [blame] | 3553 | hw->wiphy->interface_modes = |
| 3554 | BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_ADHOC); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3555 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3556 | hw->wiphy->flags |= |
| 3557 | WIPHY_FLAG_CUSTOM_REGULATORY | WIPHY_FLAG_DISABLE_BEACON_HINTS | |
| 3558 | WIPHY_FLAG_IBSS_RSN; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3559 | |
| 3560 | hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX_3945; |
| 3561 | /* we create the 802.11 header and a zero-length SSID element */ |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 3562 | 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] | 3563 | |
| 3564 | /* Default value; 4 EDCA QOS priorities */ |
| 3565 | hw->queues = 4; |
| 3566 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3567 | if (il->bands[IEEE80211_BAND_2GHZ].n_channels) |
| 3568 | il->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3569 | &il->bands[IEEE80211_BAND_2GHZ]; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3570 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3571 | if (il->bands[IEEE80211_BAND_5GHZ].n_channels) |
| 3572 | il->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3573 | &il->bands[IEEE80211_BAND_5GHZ]; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3574 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3575 | il_leds_init(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3576 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3577 | ret = ieee80211_register_hw(il->hw); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3578 | if (ret) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 3579 | IL_ERR("Failed to register hw (error %d)\n", ret); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3580 | return ret; |
| 3581 | } |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3582 | il->mac80211_registered = 1; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3583 | |
| 3584 | return 0; |
| 3585 | } |
| 3586 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3587 | static int |
| 3588 | 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] | 3589 | { |
Stanislaw Gruszka | 7c2cde2 | 2011-11-15 11:29:04 +0100 | [diff] [blame] | 3590 | int err = 0; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3591 | struct il_priv *il; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3592 | struct ieee80211_hw *hw; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3593 | struct il_cfg *cfg = (struct il_cfg *)(ent->driver_data); |
| 3594 | struct il3945_eeprom *eeprom; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3595 | unsigned long flags; |
| 3596 | |
| 3597 | /*********************** |
| 3598 | * 1. Allocating HW data |
| 3599 | * ********************/ |
| 3600 | |
Stanislaw Gruszka | c39ae9f | 2012-02-03 17:31:58 +0100 | [diff] [blame^] | 3601 | hw = ieee80211_alloc_hw(sizeof(struct il_priv), &il3945_mac_ops); |
| 3602 | if (!hw) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3603 | err = -ENOMEM; |
| 3604 | goto out; |
| 3605 | } |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3606 | il = hw->priv; |
Stanislaw Gruszka | c39ae9f | 2012-02-03 17:31:58 +0100 | [diff] [blame^] | 3607 | il->hw = hw; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3608 | SET_IEEE80211_DEV(hw, &pdev->dev); |
| 3609 | |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 3610 | il->cmd_queue = IL39_CMD_QUEUE_NUM; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3611 | |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3612 | /* |
| 3613 | * Disabling hardware scan means that mac80211 will perform scans |
| 3614 | * "the hard way", rather than using device's scan. |
| 3615 | */ |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3616 | if (il3945_mod_params.disable_hw_scan) { |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 3617 | D_INFO("Disabling hw_scan\n"); |
Stanislaw Gruszka | c39ae9f | 2012-02-03 17:31:58 +0100 | [diff] [blame^] | 3618 | il3945_mac_ops.hw_scan = NULL; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3619 | } |
| 3620 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 3621 | D_INFO("*** LOAD DRIVER ***\n"); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3622 | il->cfg = cfg; |
Stanislaw Gruszka | c39ae9f | 2012-02-03 17:31:58 +0100 | [diff] [blame^] | 3623 | il->ops = &il3945_ops; |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3624 | il->pci_dev = pdev; |
| 3625 | il->inta_mask = CSR_INI_SET_MASK; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3626 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3627 | if (il_alloc_traffic_mem(il)) |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 3628 | IL_ERR("Not enough memory to generate traffic log\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3629 | |
| 3630 | /*************************** |
| 3631 | * 2. Initializing PCI bus |
| 3632 | * *************************/ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3633 | pci_disable_link_state(pdev, |
| 3634 | PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 | |
| 3635 | PCIE_LINK_STATE_CLKPM); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3636 | |
| 3637 | if (pci_enable_device(pdev)) { |
| 3638 | err = -ENODEV; |
| 3639 | goto out_ieee80211_free_hw; |
| 3640 | } |
| 3641 | |
| 3642 | pci_set_master(pdev); |
| 3643 | |
| 3644 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
| 3645 | if (!err) |
| 3646 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); |
| 3647 | if (err) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 3648 | IL_WARN("No suitable DMA available.\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3649 | goto out_pci_disable_device; |
| 3650 | } |
| 3651 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3652 | pci_set_drvdata(pdev, il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3653 | err = pci_request_regions(pdev, DRV_NAME); |
| 3654 | if (err) |
| 3655 | goto out_pci_disable_device; |
| 3656 | |
| 3657 | /*********************** |
| 3658 | * 3. Read REV Register |
| 3659 | * ********************/ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3660 | il->hw_base = pci_iomap(pdev, 0, 0); |
| 3661 | if (!il->hw_base) { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3662 | err = -ENODEV; |
| 3663 | goto out_pci_release_regions; |
| 3664 | } |
| 3665 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 3666 | D_INFO("pci_resource_len = 0x%08llx\n", |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3667 | (unsigned long long)pci_resource_len(pdev, 0)); |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 3668 | D_INFO("pci_resource_base = %p\n", il->hw_base); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3669 | |
| 3670 | /* We disable the RETRY_TIMEOUT register (0x41) to keep |
| 3671 | * PCI Tx retries from interfering with C3 CPU state */ |
| 3672 | pci_write_config_byte(pdev, 0x41, 0x00); |
| 3673 | |
| 3674 | /* these spin locks will be used in apm_ops.init and EEPROM access |
| 3675 | * we should init now |
| 3676 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3677 | spin_lock_init(&il->reg_lock); |
| 3678 | spin_lock_init(&il->lock); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3679 | |
| 3680 | /* |
| 3681 | * stop and reset the on-board processor just in case it is in a |
| 3682 | * strange state ... like being left stranded by a primary kernel |
| 3683 | * and this is now the kdump kernel trying to start up |
| 3684 | */ |
Stanislaw Gruszka | 841b2cc | 2011-08-24 15:14:03 +0200 | [diff] [blame] | 3685 | _il_wr(il, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3686 | |
| 3687 | /*********************** |
| 3688 | * 4. Read EEPROM |
| 3689 | * ********************/ |
| 3690 | |
| 3691 | /* Read the EEPROM */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3692 | err = il_eeprom_init(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3693 | if (err) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 3694 | IL_ERR("Unable to init EEPROM\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3695 | goto out_iounmap; |
| 3696 | } |
| 3697 | /* MAC Address location in EEPROM same for 3945/4965 */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3698 | eeprom = (struct il3945_eeprom *)il->eeprom; |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 3699 | D_INFO("MAC address: %pM\n", eeprom->mac_address); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3700 | SET_IEEE80211_PERM_ADDR(il->hw, eeprom->mac_address); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3701 | |
| 3702 | /*********************** |
| 3703 | * 5. Setup HW Constants |
| 3704 | * ********************/ |
| 3705 | /* Device-specific setup */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3706 | if (il3945_hw_set_hw_params(il)) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 3707 | IL_ERR("failed to set hw settings\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3708 | goto out_eeprom_free; |
| 3709 | } |
| 3710 | |
| 3711 | /*********************** |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3712 | * 6. Setup il |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3713 | * ********************/ |
| 3714 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3715 | err = il3945_init_drv(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3716 | if (err) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 3717 | IL_ERR("initializing driver failed\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3718 | goto out_unset_hw_params; |
| 3719 | } |
| 3720 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3721 | IL_INFO("Detected Intel Wireless WiFi Link %s\n", il->cfg->name); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3722 | |
| 3723 | /*********************** |
| 3724 | * 7. Setup Services |
| 3725 | * ********************/ |
| 3726 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3727 | spin_lock_irqsave(&il->lock, flags); |
| 3728 | il_disable_interrupts(il); |
| 3729 | spin_unlock_irqrestore(&il->lock, flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3730 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3731 | pci_enable_msi(il->pci_dev); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3732 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3733 | err = request_irq(il->pci_dev->irq, il_isr, IRQF_SHARED, DRV_NAME, il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3734 | if (err) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 3735 | IL_ERR("Error allocating IRQ %d\n", il->pci_dev->irq); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3736 | goto out_disable_msi; |
| 3737 | } |
| 3738 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3739 | err = sysfs_create_group(&pdev->dev.kobj, &il3945_attribute_group); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3740 | if (err) { |
Stanislaw Gruszka | 9406f79 | 2011-08-18 22:07:57 +0200 | [diff] [blame] | 3741 | IL_ERR("failed to create sysfs device attributes\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3742 | goto out_release_irq; |
| 3743 | } |
| 3744 | |
Stanislaw Gruszka | 8300719 | 2012-02-03 17:31:57 +0100 | [diff] [blame] | 3745 | il_set_rxon_channel(il, &il->bands[IEEE80211_BAND_2GHZ].channels[5]); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3746 | il3945_setup_deferred_work(il); |
Stanislaw Gruszka | d0c7234 | 2011-08-30 15:39:42 +0200 | [diff] [blame] | 3747 | il3945_setup_handlers(il); |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3748 | il_power_initialize(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3749 | |
| 3750 | /********************************* |
| 3751 | * 8. Setup and Register mac80211 |
| 3752 | * *******************************/ |
| 3753 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3754 | il_enable_interrupts(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3755 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3756 | err = il3945_setup_mac(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3757 | if (err) |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3758 | goto out_remove_sysfs; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3759 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3760 | err = il_dbgfs_register(il, DRV_NAME); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3761 | if (err) |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3762 | IL_ERR("failed to create debugfs files. Ignoring error: %d\n", |
| 3763 | err); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3764 | |
| 3765 | /* Start monitoring the killswitch */ |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3766 | queue_delayed_work(il->workqueue, &il->_3945.rfkill_poll, 2 * HZ); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3767 | |
| 3768 | return 0; |
| 3769 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3770 | out_remove_sysfs: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3771 | destroy_workqueue(il->workqueue); |
| 3772 | il->workqueue = NULL; |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3773 | sysfs_remove_group(&pdev->dev.kobj, &il3945_attribute_group); |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3774 | out_release_irq: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3775 | free_irq(il->pci_dev->irq, il); |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3776 | out_disable_msi: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3777 | pci_disable_msi(il->pci_dev); |
| 3778 | il_free_geos(il); |
| 3779 | il_free_channel_map(il); |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3780 | out_unset_hw_params: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3781 | il3945_unset_hw_params(il); |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3782 | out_eeprom_free: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3783 | il_eeprom_free(il); |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3784 | out_iounmap: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3785 | pci_iounmap(pdev, il->hw_base); |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3786 | out_pci_release_regions: |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3787 | pci_release_regions(pdev); |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3788 | out_pci_disable_device: |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3789 | pci_set_drvdata(pdev, NULL); |
| 3790 | pci_disable_device(pdev); |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3791 | out_ieee80211_free_hw: |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3792 | il_free_traffic_mem(il); |
| 3793 | ieee80211_free_hw(il->hw); |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3794 | out: |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3795 | return err; |
| 3796 | } |
| 3797 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3798 | static void __devexit |
| 3799 | il3945_pci_remove(struct pci_dev *pdev) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3800 | { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3801 | struct il_priv *il = pci_get_drvdata(pdev); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3802 | unsigned long flags; |
| 3803 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3804 | if (!il) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3805 | return; |
| 3806 | |
Stanislaw Gruszka | 58de00a | 2011-11-15 11:21:01 +0100 | [diff] [blame] | 3807 | D_INFO("*** UNLOAD DRIVER ***\n"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3808 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3809 | il_dbgfs_unregister(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3810 | |
Stanislaw Gruszka | a6766cc | 2011-11-15 13:09:01 +0100 | [diff] [blame] | 3811 | set_bit(S_EXIT_PENDING, &il->status); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3812 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3813 | il_leds_exit(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3814 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3815 | if (il->mac80211_registered) { |
| 3816 | ieee80211_unregister_hw(il->hw); |
| 3817 | il->mac80211_registered = 0; |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3818 | } else { |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3819 | il3945_down(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3820 | } |
| 3821 | |
| 3822 | /* |
| 3823 | * Make sure device is reset to low power before unloading driver. |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3824 | * This may be redundant with il_down(), but there are paths to |
| 3825 | * run il_down() without calling apm_ops.stop(), and there are |
| 3826 | * paths to avoid running il_down() at all before leaving driver. |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3827 | * This (inexpensive) call *makes sure* device is reset. |
| 3828 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3829 | il_apm_stop(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3830 | |
| 3831 | /* make sure we flush any pending irq or |
| 3832 | * tasklet for the driver |
| 3833 | */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3834 | spin_lock_irqsave(&il->lock, flags); |
| 3835 | il_disable_interrupts(il); |
| 3836 | spin_unlock_irqrestore(&il->lock, flags); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3837 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3838 | il3945_synchronize_irq(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3839 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3840 | sysfs_remove_group(&pdev->dev.kobj, &il3945_attribute_group); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3841 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3842 | cancel_delayed_work_sync(&il->_3945.rfkill_poll); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3843 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3844 | il3945_dealloc_ucode_pci(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3845 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3846 | if (il->rxq.bd) |
| 3847 | il3945_rx_queue_free(il, &il->rxq); |
| 3848 | il3945_hw_txq_ctx_free(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3849 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3850 | il3945_unset_hw_params(il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3851 | |
| 3852 | /*netif_stop_queue(dev); */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3853 | flush_workqueue(il->workqueue); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3854 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3855 | /* ieee80211_unregister_hw calls il3945_mac_stop, which flushes |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3856 | * il->workqueue... so we can't take down the workqueue |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3857 | * until now... */ |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3858 | destroy_workqueue(il->workqueue); |
| 3859 | il->workqueue = NULL; |
| 3860 | il_free_traffic_mem(il); |
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 | free_irq(pdev->irq, il); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3863 | pci_disable_msi(pdev); |
| 3864 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3865 | pci_iounmap(pdev, il->hw_base); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3866 | pci_release_regions(pdev); |
| 3867 | pci_disable_device(pdev); |
| 3868 | pci_set_drvdata(pdev, NULL); |
| 3869 | |
Stanislaw Gruszka | 46bc8d4 | 2011-10-24 16:49:25 +0200 | [diff] [blame] | 3870 | il_free_channel_map(il); |
| 3871 | il_free_geos(il); |
| 3872 | kfree(il->scan_cmd); |
| 3873 | if (il->beacon_skb) |
| 3874 | dev_kfree_skb(il->beacon_skb); |
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 | ieee80211_free_hw(il->hw); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3877 | } |
| 3878 | |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3879 | /***************************************************************************** |
| 3880 | * |
| 3881 | * driver and module entry point |
| 3882 | * |
| 3883 | *****************************************************************************/ |
| 3884 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3885 | static struct pci_driver il3945_driver = { |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3886 | .name = DRV_NAME, |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3887 | .id_table = il3945_hw_card_ids, |
| 3888 | .probe = il3945_pci_probe, |
| 3889 | .remove = __devexit_p(il3945_pci_remove), |
| 3890 | .driver.pm = IL_LEGACY_PM_OPS, |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3891 | }; |
| 3892 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3893 | static int __init |
| 3894 | il3945_init(void) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3895 | { |
| 3896 | |
| 3897 | int ret; |
| 3898 | pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n"); |
| 3899 | pr_info(DRV_COPYRIGHT "\n"); |
| 3900 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3901 | ret = il3945_rate_control_register(); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3902 | if (ret) { |
| 3903 | pr_err("Unable to register rate control algorithm: %d\n", ret); |
| 3904 | return ret; |
| 3905 | } |
| 3906 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3907 | ret = pci_register_driver(&il3945_driver); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3908 | if (ret) { |
| 3909 | pr_err("Unable to initialize PCI module\n"); |
| 3910 | goto error_register; |
| 3911 | } |
| 3912 | |
| 3913 | return ret; |
| 3914 | |
| 3915 | error_register: |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3916 | il3945_rate_control_unregister(); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3917 | return ret; |
| 3918 | } |
| 3919 | |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3920 | static void __exit |
| 3921 | il3945_exit(void) |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3922 | { |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3923 | pci_unregister_driver(&il3945_driver); |
| 3924 | il3945_rate_control_unregister(); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3925 | } |
| 3926 | |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 3927 | MODULE_FIRMWARE(IL3945_MODULE_FIRMWARE(IL3945_UCODE_API_MAX)); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3928 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3929 | module_param_named(antenna, il3945_mod_params.antenna, int, S_IRUGO); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3930 | 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] | 3931 | module_param_named(swcrypto, il3945_mod_params.sw_crypto, int, S_IRUGO); |
Stanislaw Gruszka | e739236 | 2011-11-15 14:45:59 +0100 | [diff] [blame] | 3932 | MODULE_PARM_DESC(swcrypto, "using software crypto (default 1 [software])"); |
| 3933 | module_param_named(disable_hw_scan, il3945_mod_params.disable_hw_scan, int, |
| 3934 | S_IRUGO); |
Stanislaw Gruszka | 0263aa4 | 2011-03-29 11:24:21 +0200 | [diff] [blame] | 3935 | MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 1)"); |
Stanislaw Gruszka | d317516 | 2011-11-15 11:25:42 +0100 | [diff] [blame] | 3936 | #ifdef CONFIG_IWLEGACY_DEBUG |
Stanislaw Gruszka | d2ddf62 | 2011-08-16 14:17:04 +0200 | [diff] [blame] | 3937 | 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] | 3938 | MODULE_PARM_DESC(debug, "debug output mask"); |
| 3939 | #endif |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3940 | 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] | 3941 | MODULE_PARM_DESC(fw_restart, "restart firmware in case of error"); |
Wey-Yi Guy | 4bc85c1 | 2011-02-21 11:11:05 -0800 | [diff] [blame] | 3942 | |
Stanislaw Gruszka | e2ebc83 | 2011-10-24 15:41:30 +0200 | [diff] [blame] | 3943 | module_exit(il3945_exit); |
| 3944 | module_init(il3945_init); |