Tomas Winkler | df48c32 | 2008-03-06 10:40:19 -0800 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
Tomas Winkler | df48c32 | 2008-03-06 10:40:19 -0800 | [diff] [blame] | 3 | * GPL LICENSE SUMMARY |
| 4 | * |
Reinette Chatre | 1f44780 | 2010-01-15 13:43:41 -0800 | [diff] [blame] | 5 | * Copyright(c) 2008 - 2010 Intel Corporation. All rights reserved. |
Tomas Winkler | df48c32 | 2008-03-06 10:40:19 -0800 | [diff] [blame] | 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of version 2 of the GNU General Public License as |
| 9 | * published by the Free Software Foundation. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, but |
| 12 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | * General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, |
| 19 | * USA |
| 20 | * |
| 21 | * The full GNU General Public License is included in this distribution |
| 22 | * in the file called LICENSE.GPL. |
| 23 | * |
| 24 | * Contact Information: |
Winkler, Tomas | 759ef89 | 2008-12-09 11:28:58 -0800 | [diff] [blame] | 25 | * Intel Linux Wireless <ilw@linux.intel.com> |
Tomas Winkler | df48c32 | 2008-03-06 10:40:19 -0800 | [diff] [blame] | 26 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| 27 | *****************************************************************************/ |
| 28 | |
| 29 | #include <linux/kernel.h> |
| 30 | #include <linux/module.h> |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 31 | #include <linux/etherdevice.h> |
Alexey Dobriyan | d43c36d | 2009-10-07 17:09:06 +0400 | [diff] [blame] | 32 | #include <linux/sched.h> |
Assaf Krauss | 1d0a082 | 2008-03-14 10:38:48 -0700 | [diff] [blame] | 33 | #include <net/mac80211.h> |
Tomas Winkler | df48c32 | 2008-03-06 10:40:19 -0800 | [diff] [blame] | 34 | |
Assaf Krauss | 6bc913b | 2008-03-11 16:17:18 -0700 | [diff] [blame] | 35 | #include "iwl-eeprom.h" |
Tomas Winkler | 3e0d4cb | 2008-04-24 11:55:38 -0700 | [diff] [blame] | 36 | #include "iwl-dev.h" /* FIXME: remove */ |
Winkler, Tomas | 19335774 | 2008-11-07 09:58:36 -0800 | [diff] [blame] | 37 | #include "iwl-debug.h" |
Tomas Winkler | df48c32 | 2008-03-06 10:40:19 -0800 | [diff] [blame] | 38 | #include "iwl-core.h" |
Tomas Winkler | b661c81 | 2008-04-23 17:14:54 -0700 | [diff] [blame] | 39 | #include "iwl-io.h" |
Mohamed Abbas | 5da4b55 | 2008-04-21 15:41:51 -0700 | [diff] [blame] | 40 | #include "iwl-power.h" |
Winkler, Tomas | 83dde8c | 2008-11-19 15:32:23 -0800 | [diff] [blame] | 41 | #include "iwl-sta.h" |
Mohamed Abbas | ef850d7 | 2009-05-22 11:01:50 -0700 | [diff] [blame] | 42 | #include "iwl-helpers.h" |
Tomas Winkler | df48c32 | 2008-03-06 10:40:19 -0800 | [diff] [blame] | 43 | |
Assaf Krauss | 1d0a082 | 2008-03-14 10:38:48 -0700 | [diff] [blame] | 44 | |
Tomas Winkler | df48c32 | 2008-03-06 10:40:19 -0800 | [diff] [blame] | 45 | MODULE_DESCRIPTION("iwl core"); |
| 46 | MODULE_VERSION(IWLWIFI_VERSION); |
Tomas Winkler | a7b7520 | 2008-12-11 10:33:41 -0800 | [diff] [blame] | 47 | MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); |
Tomas Winkler | 712b6cf | 2008-03-12 16:58:52 -0700 | [diff] [blame] | 48 | MODULE_LICENSE("GPL"); |
Tomas Winkler | df48c32 | 2008-03-06 10:40:19 -0800 | [diff] [blame] | 49 | |
Wey-Yi Guy | 06702a7 | 2010-01-22 14:22:51 -0800 | [diff] [blame] | 50 | /* |
| 51 | * set bt_coex_active to true, uCode will do kill/defer |
| 52 | * every time the priority line is asserted (BT is sending signals on the |
| 53 | * priority line in the PCIx). |
| 54 | * set bt_coex_active to false, uCode will ignore the BT activity and |
| 55 | * perform the normal operation |
| 56 | * |
| 57 | * User might experience transmit issue on some platform due to WiFi/BT |
| 58 | * co-exist problem. The possible behaviors are: |
| 59 | * Able to scan and finding all the available AP |
| 60 | * Not able to associate with any AP |
| 61 | * On those platforms, WiFi communication can be restored by set |
| 62 | * "bt_coex_active" module parameter to "false" |
| 63 | * |
| 64 | * default: bt_coex_active = true (BT_COEX_ENABLE) |
| 65 | */ |
| 66 | static bool bt_coex_active = true; |
| 67 | module_param(bt_coex_active, bool, S_IRUGO); |
| 68 | MODULE_PARM_DESC(bt_coex_active, "enable wifi/bluetooth co-exist\n"); |
| 69 | |
Wey-Yi Guy | 1933ac4 | 2009-10-30 14:36:18 -0700 | [diff] [blame] | 70 | static struct iwl_wimax_coex_event_entry cu_priorities[COEX_NUM_OF_EVENTS] = { |
| 71 | {COEX_CU_UNASSOC_IDLE_RP, COEX_CU_UNASSOC_IDLE_WP, |
| 72 | 0, COEX_UNASSOC_IDLE_FLAGS}, |
| 73 | {COEX_CU_UNASSOC_MANUAL_SCAN_RP, COEX_CU_UNASSOC_MANUAL_SCAN_WP, |
| 74 | 0, COEX_UNASSOC_MANUAL_SCAN_FLAGS}, |
| 75 | {COEX_CU_UNASSOC_AUTO_SCAN_RP, COEX_CU_UNASSOC_AUTO_SCAN_WP, |
| 76 | 0, COEX_UNASSOC_AUTO_SCAN_FLAGS}, |
| 77 | {COEX_CU_CALIBRATION_RP, COEX_CU_CALIBRATION_WP, |
| 78 | 0, COEX_CALIBRATION_FLAGS}, |
| 79 | {COEX_CU_PERIODIC_CALIBRATION_RP, COEX_CU_PERIODIC_CALIBRATION_WP, |
| 80 | 0, COEX_PERIODIC_CALIBRATION_FLAGS}, |
| 81 | {COEX_CU_CONNECTION_ESTAB_RP, COEX_CU_CONNECTION_ESTAB_WP, |
| 82 | 0, COEX_CONNECTION_ESTAB_FLAGS}, |
| 83 | {COEX_CU_ASSOCIATED_IDLE_RP, COEX_CU_ASSOCIATED_IDLE_WP, |
| 84 | 0, COEX_ASSOCIATED_IDLE_FLAGS}, |
| 85 | {COEX_CU_ASSOC_MANUAL_SCAN_RP, COEX_CU_ASSOC_MANUAL_SCAN_WP, |
| 86 | 0, COEX_ASSOC_MANUAL_SCAN_FLAGS}, |
| 87 | {COEX_CU_ASSOC_AUTO_SCAN_RP, COEX_CU_ASSOC_AUTO_SCAN_WP, |
| 88 | 0, COEX_ASSOC_AUTO_SCAN_FLAGS}, |
| 89 | {COEX_CU_ASSOC_ACTIVE_LEVEL_RP, COEX_CU_ASSOC_ACTIVE_LEVEL_WP, |
| 90 | 0, COEX_ASSOC_ACTIVE_LEVEL_FLAGS}, |
| 91 | {COEX_CU_RF_ON_RP, COEX_CU_RF_ON_WP, 0, COEX_CU_RF_ON_FLAGS}, |
| 92 | {COEX_CU_RF_OFF_RP, COEX_CU_RF_OFF_WP, 0, COEX_RF_OFF_FLAGS}, |
| 93 | {COEX_CU_STAND_ALONE_DEBUG_RP, COEX_CU_STAND_ALONE_DEBUG_WP, |
| 94 | 0, COEX_STAND_ALONE_DEBUG_FLAGS}, |
| 95 | {COEX_CU_IPAN_ASSOC_LEVEL_RP, COEX_CU_IPAN_ASSOC_LEVEL_WP, |
| 96 | 0, COEX_IPAN_ASSOC_LEVEL_FLAGS}, |
| 97 | {COEX_CU_RSRVD1_RP, COEX_CU_RSRVD1_WP, 0, COEX_RSRVD1_FLAGS}, |
| 98 | {COEX_CU_RSRVD2_RP, COEX_CU_RSRVD2_WP, 0, COEX_RSRVD2_FLAGS} |
| 99 | }; |
| 100 | |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 101 | #define IWL_DECLARE_RATE_INFO(r, s, ip, in, rp, rn, pp, np) \ |
| 102 | [IWL_RATE_##r##M_INDEX] = { IWL_RATE_##r##M_PLCP, \ |
| 103 | IWL_RATE_SISO_##s##M_PLCP, \ |
| 104 | IWL_RATE_MIMO2_##s##M_PLCP,\ |
| 105 | IWL_RATE_MIMO3_##s##M_PLCP,\ |
| 106 | IWL_RATE_##r##M_IEEE, \ |
| 107 | IWL_RATE_##ip##M_INDEX, \ |
| 108 | IWL_RATE_##in##M_INDEX, \ |
| 109 | IWL_RATE_##rp##M_INDEX, \ |
| 110 | IWL_RATE_##rn##M_INDEX, \ |
| 111 | IWL_RATE_##pp##M_INDEX, \ |
| 112 | IWL_RATE_##np##M_INDEX } |
| 113 | |
Reinette Chatre | a562a9d | 2009-07-17 09:30:24 -0700 | [diff] [blame] | 114 | u32 iwl_debug_level; |
| 115 | EXPORT_SYMBOL(iwl_debug_level); |
| 116 | |
Mohamed Abbas | ef850d7 | 2009-05-22 11:01:50 -0700 | [diff] [blame] | 117 | static irqreturn_t iwl_isr(int irq, void *data); |
| 118 | |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 119 | /* |
| 120 | * Parameter order: |
| 121 | * rate, ht rate, prev rate, next rate, prev tgg rate, next tgg rate |
| 122 | * |
| 123 | * If there isn't a valid next or previous rate then INV is used which |
| 124 | * maps to IWL_RATE_INVALID |
| 125 | * |
| 126 | */ |
Tomas Winkler | 1826dcc | 2008-05-15 13:54:02 +0800 | [diff] [blame] | 127 | const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT] = { |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 128 | IWL_DECLARE_RATE_INFO(1, INV, INV, 2, INV, 2, INV, 2), /* 1mbps */ |
| 129 | IWL_DECLARE_RATE_INFO(2, INV, 1, 5, 1, 5, 1, 5), /* 2mbps */ |
| 130 | IWL_DECLARE_RATE_INFO(5, INV, 2, 6, 2, 11, 2, 11), /*5.5mbps */ |
| 131 | IWL_DECLARE_RATE_INFO(11, INV, 9, 12, 9, 12, 5, 18), /* 11mbps */ |
| 132 | IWL_DECLARE_RATE_INFO(6, 6, 5, 9, 5, 11, 5, 11), /* 6mbps */ |
| 133 | IWL_DECLARE_RATE_INFO(9, 6, 6, 11, 6, 11, 5, 11), /* 9mbps */ |
| 134 | IWL_DECLARE_RATE_INFO(12, 12, 11, 18, 11, 18, 11, 18), /* 12mbps */ |
| 135 | IWL_DECLARE_RATE_INFO(18, 18, 12, 24, 12, 24, 11, 24), /* 18mbps */ |
| 136 | IWL_DECLARE_RATE_INFO(24, 24, 18, 36, 18, 36, 18, 36), /* 24mbps */ |
| 137 | IWL_DECLARE_RATE_INFO(36, 36, 24, 48, 24, 48, 24, 48), /* 36mbps */ |
| 138 | IWL_DECLARE_RATE_INFO(48, 48, 36, 54, 36, 54, 36, 54), /* 48mbps */ |
| 139 | IWL_DECLARE_RATE_INFO(54, 54, 48, INV, 48, INV, 48, INV),/* 54mbps */ |
| 140 | IWL_DECLARE_RATE_INFO(60, 60, 48, INV, 48, INV, 48, INV),/* 60mbps */ |
| 141 | /* FIXME:RS: ^^ should be INV (legacy) */ |
| 142 | }; |
Tomas Winkler | 1826dcc | 2008-05-15 13:54:02 +0800 | [diff] [blame] | 143 | EXPORT_SYMBOL(iwl_rates); |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 144 | |
Tomas Winkler | e7d326a | 2008-06-12 09:47:11 +0800 | [diff] [blame] | 145 | /** |
| 146 | * translate ucode response to mac80211 tx status control values |
| 147 | */ |
| 148 | void iwl_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags, |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 149 | struct ieee80211_tx_info *info) |
Tomas Winkler | e7d326a | 2008-06-12 09:47:11 +0800 | [diff] [blame] | 150 | { |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 151 | struct ieee80211_tx_rate *r = &info->control.rates[0]; |
Tomas Winkler | e7d326a | 2008-06-12 09:47:11 +0800 | [diff] [blame] | 152 | |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 153 | info->antenna_sel_tx = |
Tomas Winkler | e7d326a | 2008-06-12 09:47:11 +0800 | [diff] [blame] | 154 | ((rate_n_flags & RATE_MCS_ANT_ABC_MSK) >> RATE_MCS_ANT_POS); |
| 155 | if (rate_n_flags & RATE_MCS_HT_MSK) |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 156 | r->flags |= IEEE80211_TX_RC_MCS; |
Tomas Winkler | e7d326a | 2008-06-12 09:47:11 +0800 | [diff] [blame] | 157 | if (rate_n_flags & RATE_MCS_GF_MSK) |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 158 | r->flags |= IEEE80211_TX_RC_GREEN_FIELD; |
Wey-Yi Guy | 7aafef1 | 2009-08-07 15:41:38 -0700 | [diff] [blame] | 159 | if (rate_n_flags & RATE_MCS_HT40_MSK) |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 160 | r->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH; |
Tomas Winkler | e7d326a | 2008-06-12 09:47:11 +0800 | [diff] [blame] | 161 | if (rate_n_flags & RATE_MCS_DUP_MSK) |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 162 | r->flags |= IEEE80211_TX_RC_DUP_DATA; |
Tomas Winkler | e7d326a | 2008-06-12 09:47:11 +0800 | [diff] [blame] | 163 | if (rate_n_flags & RATE_MCS_SGI_MSK) |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 164 | r->flags |= IEEE80211_TX_RC_SHORT_GI; |
Daniel C Halperin | 31513be | 2009-08-28 09:44:47 -0700 | [diff] [blame] | 165 | r->idx = iwl_hwrate_to_mac80211_idx(rate_n_flags, info->band); |
Tomas Winkler | e7d326a | 2008-06-12 09:47:11 +0800 | [diff] [blame] | 166 | } |
| 167 | EXPORT_SYMBOL(iwl_hwrate_to_tx_control); |
| 168 | |
| 169 | int iwl_hwrate_to_plcp_idx(u32 rate_n_flags) |
| 170 | { |
| 171 | int idx = 0; |
| 172 | |
| 173 | /* HT rate format */ |
| 174 | if (rate_n_flags & RATE_MCS_HT_MSK) { |
| 175 | idx = (rate_n_flags & 0xff); |
| 176 | |
Daniel C. Halperin | 60d3221 | 2008-10-23 23:48:53 -0700 | [diff] [blame] | 177 | if (idx >= IWL_RATE_MIMO3_6M_PLCP) |
| 178 | idx = idx - IWL_RATE_MIMO3_6M_PLCP; |
| 179 | else if (idx >= IWL_RATE_MIMO2_6M_PLCP) |
Tomas Winkler | e7d326a | 2008-06-12 09:47:11 +0800 | [diff] [blame] | 180 | idx = idx - IWL_RATE_MIMO2_6M_PLCP; |
| 181 | |
| 182 | idx += IWL_FIRST_OFDM_RATE; |
| 183 | /* skip 9M not supported in ht*/ |
| 184 | if (idx >= IWL_RATE_9M_INDEX) |
| 185 | idx += 1; |
| 186 | if ((idx >= IWL_FIRST_OFDM_RATE) && (idx <= IWL_LAST_OFDM_RATE)) |
| 187 | return idx; |
| 188 | |
| 189 | /* legacy rate format, search for match in table */ |
| 190 | } else { |
| 191 | for (idx = 0; idx < ARRAY_SIZE(iwl_rates); idx++) |
| 192 | if (iwl_rates[idx].plcp == (rate_n_flags & 0xFF)) |
| 193 | return idx; |
| 194 | } |
| 195 | |
| 196 | return -1; |
| 197 | } |
| 198 | EXPORT_SYMBOL(iwl_hwrate_to_plcp_idx); |
| 199 | |
Daniel C Halperin | 31513be | 2009-08-28 09:44:47 -0700 | [diff] [blame] | 200 | int iwl_hwrate_to_mac80211_idx(u32 rate_n_flags, enum ieee80211_band band) |
| 201 | { |
| 202 | int idx = 0; |
| 203 | int band_offset = 0; |
| 204 | |
| 205 | /* HT rate format: mac80211 wants an MCS number, which is just LSB */ |
| 206 | if (rate_n_flags & RATE_MCS_HT_MSK) { |
| 207 | idx = (rate_n_flags & 0xff); |
| 208 | return idx; |
| 209 | /* Legacy rate format, search for match in table */ |
| 210 | } else { |
| 211 | if (band == IEEE80211_BAND_5GHZ) |
| 212 | band_offset = IWL_FIRST_OFDM_RATE; |
| 213 | for (idx = band_offset; idx < IWL_RATE_COUNT_LEGACY; idx++) |
| 214 | if (iwl_rates[idx].plcp == (rate_n_flags & 0xFF)) |
| 215 | return idx - band_offset; |
| 216 | } |
| 217 | |
| 218 | return -1; |
| 219 | } |
| 220 | |
Tomas Winkler | 76eff18 | 2008-10-14 12:32:45 -0700 | [diff] [blame] | 221 | u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant) |
| 222 | { |
| 223 | int i; |
| 224 | u8 ind = ant; |
| 225 | for (i = 0; i < RATE_ANT_NUM - 1; i++) { |
| 226 | ind = (ind + 1) < RATE_ANT_NUM ? ind + 1 : 0; |
| 227 | if (priv->hw_params.valid_tx_ant & BIT(ind)) |
| 228 | return ind; |
| 229 | } |
| 230 | return ant; |
| 231 | } |
Daniel C Halperin | 47ff65c | 2009-11-13 11:56:33 -0800 | [diff] [blame] | 232 | EXPORT_SYMBOL(iwl_toggle_tx_ant); |
Tomas Winkler | 57bd1be | 2008-05-15 13:54:03 +0800 | [diff] [blame] | 233 | |
| 234 | const u8 iwl_bcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; |
| 235 | EXPORT_SYMBOL(iwl_bcast_addr); |
| 236 | |
| 237 | |
Assaf Krauss | 1d0a082 | 2008-03-14 10:38:48 -0700 | [diff] [blame] | 238 | /* This function both allocates and initializes hw and priv. */ |
| 239 | struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg, |
| 240 | struct ieee80211_ops *hw_ops) |
| 241 | { |
| 242 | struct iwl_priv *priv; |
| 243 | |
| 244 | /* mac80211 allocates memory for this device instance, including |
| 245 | * space for this driver's private structure */ |
| 246 | struct ieee80211_hw *hw = |
| 247 | ieee80211_alloc_hw(sizeof(struct iwl_priv), hw_ops); |
| 248 | if (hw == NULL) { |
Samuel Ortiz | a3139c5 | 2008-12-19 10:37:09 +0800 | [diff] [blame] | 249 | printk(KERN_ERR "%s: Can not allocate network device\n", |
| 250 | cfg->name); |
Assaf Krauss | 1d0a082 | 2008-03-14 10:38:48 -0700 | [diff] [blame] | 251 | goto out; |
| 252 | } |
| 253 | |
| 254 | priv = hw->priv; |
| 255 | priv->hw = hw; |
| 256 | |
| 257 | out: |
| 258 | return hw; |
| 259 | } |
| 260 | EXPORT_SYMBOL(iwl_alloc_all); |
| 261 | |
Tomas Winkler | b661c81 | 2008-04-23 17:14:54 -0700 | [diff] [blame] | 262 | void iwl_hw_detect(struct iwl_priv *priv) |
| 263 | { |
| 264 | priv->hw_rev = _iwl_read32(priv, CSR_HW_REV); |
| 265 | priv->hw_wa_rev = _iwl_read32(priv, CSR_HW_REV_WA_REG); |
| 266 | pci_read_config_byte(priv->pci_dev, PCI_REVISION_ID, &priv->rev_id); |
| 267 | } |
| 268 | EXPORT_SYMBOL(iwl_hw_detect); |
| 269 | |
Ron Rindjunsky | 1053d35 | 2008-05-05 10:22:43 +0800 | [diff] [blame] | 270 | int iwl_hw_nic_init(struct iwl_priv *priv) |
| 271 | { |
| 272 | unsigned long flags; |
| 273 | struct iwl_rx_queue *rxq = &priv->rxq; |
| 274 | int ret; |
| 275 | |
| 276 | /* nic_init */ |
Ron Rindjunsky | 1053d35 | 2008-05-05 10:22:43 +0800 | [diff] [blame] | 277 | spin_lock_irqsave(&priv->lock, flags); |
Ron Rindjunsky | 1b73af8 | 2008-05-05 10:22:51 +0800 | [diff] [blame] | 278 | priv->cfg->ops->lib->apm_ops.init(priv); |
Ben Cahill | 74ba67e | 2009-11-20 12:04:53 -0800 | [diff] [blame] | 279 | |
Wey-Yi Guy | 2be76703 | 2010-01-15 13:43:37 -0800 | [diff] [blame] | 280 | /* Set interrupt coalescing calibration timer to default (512 usecs) */ |
| 281 | iwl_write8(priv, CSR_INT_COALESCING, IWL_HOST_INT_CALIB_TIMEOUT_DEF); |
Ben Cahill | 74ba67e | 2009-11-20 12:04:53 -0800 | [diff] [blame] | 282 | |
Ron Rindjunsky | 1053d35 | 2008-05-05 10:22:43 +0800 | [diff] [blame] | 283 | spin_unlock_irqrestore(&priv->lock, flags); |
| 284 | |
| 285 | ret = priv->cfg->ops->lib->apm_ops.set_pwr_src(priv, IWL_PWR_SRC_VMAIN); |
| 286 | |
| 287 | priv->cfg->ops->lib->apm_ops.config(priv); |
| 288 | |
| 289 | /* Allocate the RX queue, or reset if it is already allocated */ |
| 290 | if (!rxq->bd) { |
| 291 | ret = iwl_rx_queue_alloc(priv); |
| 292 | if (ret) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 293 | IWL_ERR(priv, "Unable to initialize Rx queue\n"); |
Ron Rindjunsky | 1053d35 | 2008-05-05 10:22:43 +0800 | [diff] [blame] | 294 | return -ENOMEM; |
| 295 | } |
| 296 | } else |
| 297 | iwl_rx_queue_reset(priv, rxq); |
| 298 | |
| 299 | iwl_rx_replenish(priv); |
| 300 | |
| 301 | iwl_rx_init(priv, rxq); |
| 302 | |
| 303 | spin_lock_irqsave(&priv->lock, flags); |
| 304 | |
| 305 | rxq->need_update = 1; |
| 306 | iwl_rx_queue_update_write_ptr(priv, rxq); |
| 307 | |
| 308 | spin_unlock_irqrestore(&priv->lock, flags); |
| 309 | |
| 310 | /* Allocate and init all Tx and Command queues */ |
| 311 | ret = iwl_txq_ctx_reset(priv); |
| 312 | if (ret) |
| 313 | return ret; |
| 314 | |
| 315 | set_bit(STATUS_INIT, &priv->status); |
| 316 | |
| 317 | return 0; |
| 318 | } |
| 319 | EXPORT_SYMBOL(iwl_hw_nic_init); |
| 320 | |
Abhijeet Kolekar | 14d2aac | 2009-02-27 16:21:24 -0800 | [diff] [blame] | 321 | /* |
| 322 | * QoS support |
| 323 | */ |
| 324 | void iwl_activate_qos(struct iwl_priv *priv, u8 force) |
| 325 | { |
| 326 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
| 327 | return; |
| 328 | |
| 329 | priv->qos_data.def_qos_parm.qos_flags = 0; |
| 330 | |
| 331 | if (priv->qos_data.qos_cap.q_AP.queue_request && |
| 332 | !priv->qos_data.qos_cap.q_AP.txop_request) |
| 333 | priv->qos_data.def_qos_parm.qos_flags |= |
| 334 | QOS_PARAM_FLG_TXOP_TYPE_MSK; |
| 335 | if (priv->qos_data.qos_active) |
| 336 | priv->qos_data.def_qos_parm.qos_flags |= |
| 337 | QOS_PARAM_FLG_UPDATE_EDCA_MSK; |
| 338 | |
| 339 | if (priv->current_ht_config.is_ht) |
| 340 | priv->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK; |
| 341 | |
| 342 | if (force || iwl_is_associated(priv)) { |
| 343 | IWL_DEBUG_QOS(priv, "send QoS cmd with Qos active=%d FLAGS=0x%X\n", |
| 344 | priv->qos_data.qos_active, |
| 345 | priv->qos_data.def_qos_parm.qos_flags); |
| 346 | |
| 347 | iwl_send_cmd_pdu_async(priv, REPLY_QOS_PARAM, |
| 348 | sizeof(struct iwl_qosparam_cmd), |
| 349 | &priv->qos_data.def_qos_parm, NULL); |
| 350 | } |
| 351 | } |
| 352 | EXPORT_SYMBOL(iwl_activate_qos); |
| 353 | |
Wey-Yi Guy | f2c95b0 | 2009-05-08 13:44:45 -0700 | [diff] [blame] | 354 | /* |
| 355 | * AC CWmin CW max AIFSN TXOP Limit TXOP Limit |
| 356 | * (802.11b) (802.11a/g) |
| 357 | * AC_BK 15 1023 7 0 0 |
| 358 | * AC_BE 15 1023 3 0 0 |
| 359 | * AC_VI 7 15 2 6.016ms 3.008ms |
| 360 | * AC_VO 3 7 2 3.264ms 1.504ms |
| 361 | */ |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 362 | void iwl_reset_qos(struct iwl_priv *priv) |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 363 | { |
| 364 | u16 cw_min = 15; |
| 365 | u16 cw_max = 1023; |
| 366 | u8 aifs = 2; |
Winkler, Tomas | 30dab79e | 2008-12-09 11:29:01 -0800 | [diff] [blame] | 367 | bool is_legacy = false; |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 368 | unsigned long flags; |
| 369 | int i; |
| 370 | |
| 371 | spin_lock_irqsave(&priv->lock, flags); |
Winkler, Tomas | 30dab79e | 2008-12-09 11:29:01 -0800 | [diff] [blame] | 372 | /* QoS always active in AP and ADHOC mode |
| 373 | * In STA mode wait for association |
| 374 | */ |
| 375 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC || |
| 376 | priv->iw_mode == NL80211_IFTYPE_AP) |
| 377 | priv->qos_data.qos_active = 1; |
| 378 | else |
| 379 | priv->qos_data.qos_active = 0; |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 380 | |
Winkler, Tomas | 30dab79e | 2008-12-09 11:29:01 -0800 | [diff] [blame] | 381 | /* check for legacy mode */ |
| 382 | if ((priv->iw_mode == NL80211_IFTYPE_ADHOC && |
| 383 | (priv->active_rate & IWL_OFDM_RATES_MASK) == 0) || |
| 384 | (priv->iw_mode == NL80211_IFTYPE_STATION && |
| 385 | (priv->staging_rxon.flags & RXON_FLG_SHORT_SLOT_MSK) == 0)) { |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 386 | cw_min = 31; |
| 387 | is_legacy = 1; |
| 388 | } |
| 389 | |
| 390 | if (priv->qos_data.qos_active) |
| 391 | aifs = 3; |
| 392 | |
Wey-Yi Guy | f2c95b0 | 2009-05-08 13:44:45 -0700 | [diff] [blame] | 393 | /* AC_BE */ |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 394 | priv->qos_data.def_qos_parm.ac[0].cw_min = cpu_to_le16(cw_min); |
| 395 | priv->qos_data.def_qos_parm.ac[0].cw_max = cpu_to_le16(cw_max); |
| 396 | priv->qos_data.def_qos_parm.ac[0].aifsn = aifs; |
| 397 | priv->qos_data.def_qos_parm.ac[0].edca_txop = 0; |
| 398 | priv->qos_data.def_qos_parm.ac[0].reserved1 = 0; |
| 399 | |
| 400 | if (priv->qos_data.qos_active) { |
Wey-Yi Guy | f2c95b0 | 2009-05-08 13:44:45 -0700 | [diff] [blame] | 401 | /* AC_BK */ |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 402 | i = 1; |
| 403 | priv->qos_data.def_qos_parm.ac[i].cw_min = cpu_to_le16(cw_min); |
| 404 | priv->qos_data.def_qos_parm.ac[i].cw_max = cpu_to_le16(cw_max); |
| 405 | priv->qos_data.def_qos_parm.ac[i].aifsn = 7; |
| 406 | priv->qos_data.def_qos_parm.ac[i].edca_txop = 0; |
| 407 | priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; |
| 408 | |
Wey-Yi Guy | f2c95b0 | 2009-05-08 13:44:45 -0700 | [diff] [blame] | 409 | /* AC_VI */ |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 410 | i = 2; |
| 411 | priv->qos_data.def_qos_parm.ac[i].cw_min = |
| 412 | cpu_to_le16((cw_min + 1) / 2 - 1); |
| 413 | priv->qos_data.def_qos_parm.ac[i].cw_max = |
Wey-Yi Guy | f2c95b0 | 2009-05-08 13:44:45 -0700 | [diff] [blame] | 414 | cpu_to_le16(cw_min); |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 415 | priv->qos_data.def_qos_parm.ac[i].aifsn = 2; |
| 416 | if (is_legacy) |
| 417 | priv->qos_data.def_qos_parm.ac[i].edca_txop = |
| 418 | cpu_to_le16(6016); |
| 419 | else |
| 420 | priv->qos_data.def_qos_parm.ac[i].edca_txop = |
| 421 | cpu_to_le16(3008); |
| 422 | priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; |
| 423 | |
Wey-Yi Guy | f2c95b0 | 2009-05-08 13:44:45 -0700 | [diff] [blame] | 424 | /* AC_VO */ |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 425 | i = 3; |
| 426 | priv->qos_data.def_qos_parm.ac[i].cw_min = |
| 427 | cpu_to_le16((cw_min + 1) / 4 - 1); |
| 428 | priv->qos_data.def_qos_parm.ac[i].cw_max = |
Wey-Yi Guy | f2c95b0 | 2009-05-08 13:44:45 -0700 | [diff] [blame] | 429 | cpu_to_le16((cw_min + 1) / 2 - 1); |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 430 | priv->qos_data.def_qos_parm.ac[i].aifsn = 2; |
| 431 | priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; |
| 432 | if (is_legacy) |
| 433 | priv->qos_data.def_qos_parm.ac[i].edca_txop = |
| 434 | cpu_to_le16(3264); |
| 435 | else |
| 436 | priv->qos_data.def_qos_parm.ac[i].edca_txop = |
| 437 | cpu_to_le16(1504); |
| 438 | } else { |
| 439 | for (i = 1; i < 4; i++) { |
| 440 | priv->qos_data.def_qos_parm.ac[i].cw_min = |
| 441 | cpu_to_le16(cw_min); |
| 442 | priv->qos_data.def_qos_parm.ac[i].cw_max = |
| 443 | cpu_to_le16(cw_max); |
| 444 | priv->qos_data.def_qos_parm.ac[i].aifsn = aifs; |
| 445 | priv->qos_data.def_qos_parm.ac[i].edca_txop = 0; |
| 446 | priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; |
| 447 | } |
| 448 | } |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 449 | IWL_DEBUG_QOS(priv, "set QoS to default \n"); |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 450 | |
| 451 | spin_unlock_irqrestore(&priv->lock, flags); |
| 452 | } |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 453 | EXPORT_SYMBOL(iwl_reset_qos); |
| 454 | |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 455 | #define MAX_BIT_RATE_40_MHZ 150 /* Mbps */ |
| 456 | #define MAX_BIT_RATE_20_MHZ 72 /* Mbps */ |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 457 | static void iwlcore_init_ht_hw_capab(const struct iwl_priv *priv, |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 458 | struct ieee80211_sta_ht_cap *ht_info, |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 459 | enum ieee80211_band band) |
| 460 | { |
Ron Rindjunsky | 39130df | 2008-05-15 13:53:56 +0800 | [diff] [blame] | 461 | u16 max_bit_rate = 0; |
| 462 | u8 rx_chains_num = priv->hw_params.rx_chains_num; |
| 463 | u8 tx_chains_num = priv->hw_params.tx_chains_num; |
| 464 | |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 465 | ht_info->cap = 0; |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 466 | memset(&ht_info->mcs, 0, sizeof(ht_info->mcs)); |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 467 | |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 468 | ht_info->ht_supported = true; |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 469 | |
Daniel C Halperin | b261793 | 2009-08-13 13:30:59 -0700 | [diff] [blame] | 470 | if (priv->cfg->ht_greenfield_support) |
| 471 | ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD; |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 472 | ht_info->cap |= IEEE80211_HT_CAP_SGI_20; |
Ron Rindjunsky | 39130df | 2008-05-15 13:53:56 +0800 | [diff] [blame] | 473 | max_bit_rate = MAX_BIT_RATE_20_MHZ; |
Wey-Yi Guy | 7aafef1 | 2009-08-07 15:41:38 -0700 | [diff] [blame] | 474 | if (priv->hw_params.ht40_channel & BIT(band)) { |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 475 | ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; |
| 476 | ht_info->cap |= IEEE80211_HT_CAP_SGI_40; |
| 477 | ht_info->mcs.rx_mask[4] = 0x01; |
Ron Rindjunsky | 39130df | 2008-05-15 13:53:56 +0800 | [diff] [blame] | 478 | max_bit_rate = MAX_BIT_RATE_40_MHZ; |
| 479 | } |
| 480 | |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 481 | if (priv->cfg->mod_params->amsdu_size_8K) |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 482 | ht_info->cap |= IEEE80211_HT_CAP_MAX_AMSDU; |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 483 | |
| 484 | ht_info->ampdu_factor = CFG_HT_RX_AMPDU_FACTOR_DEF; |
| 485 | ht_info->ampdu_density = CFG_HT_MPDU_DENSITY_DEF; |
| 486 | |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 487 | ht_info->mcs.rx_mask[0] = 0xFF; |
Ron Rindjunsky | 39130df | 2008-05-15 13:53:56 +0800 | [diff] [blame] | 488 | if (rx_chains_num >= 2) |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 489 | ht_info->mcs.rx_mask[1] = 0xFF; |
Ron Rindjunsky | 39130df | 2008-05-15 13:53:56 +0800 | [diff] [blame] | 490 | if (rx_chains_num >= 3) |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 491 | ht_info->mcs.rx_mask[2] = 0xFF; |
Ron Rindjunsky | 39130df | 2008-05-15 13:53:56 +0800 | [diff] [blame] | 492 | |
| 493 | /* Highest supported Rx data rate */ |
| 494 | max_bit_rate *= rx_chains_num; |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 495 | WARN_ON(max_bit_rate & ~IEEE80211_HT_MCS_RX_HIGHEST_MASK); |
| 496 | ht_info->mcs.rx_highest = cpu_to_le16(max_bit_rate); |
Ron Rindjunsky | 39130df | 2008-05-15 13:53:56 +0800 | [diff] [blame] | 497 | |
| 498 | /* Tx MCS capabilities */ |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 499 | ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; |
Ron Rindjunsky | 39130df | 2008-05-15 13:53:56 +0800 | [diff] [blame] | 500 | if (tx_chains_num != rx_chains_num) { |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 501 | ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF; |
| 502 | ht_info->mcs.tx_params |= ((tx_chains_num - 1) << |
| 503 | IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT); |
Ron Rindjunsky | 39130df | 2008-05-15 13:53:56 +0800 | [diff] [blame] | 504 | } |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 505 | } |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 506 | |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 507 | /** |
| 508 | * iwlcore_init_geos - Initialize mac80211's geo/channel info based from eeprom |
| 509 | */ |
Samuel Ortiz | 534166d | 2009-01-23 13:45:16 -0800 | [diff] [blame] | 510 | int iwlcore_init_geos(struct iwl_priv *priv) |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 511 | { |
| 512 | struct iwl_channel_info *ch; |
| 513 | struct ieee80211_supported_band *sband; |
| 514 | struct ieee80211_channel *channels; |
| 515 | struct ieee80211_channel *geo_ch; |
| 516 | struct ieee80211_rate *rates; |
| 517 | int i = 0; |
| 518 | |
| 519 | if (priv->bands[IEEE80211_BAND_2GHZ].n_bitrates || |
| 520 | priv->bands[IEEE80211_BAND_5GHZ].n_bitrates) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 521 | IWL_DEBUG_INFO(priv, "Geography modes already initialized.\n"); |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 522 | set_bit(STATUS_GEO_CONFIGURED, &priv->status); |
| 523 | return 0; |
| 524 | } |
| 525 | |
| 526 | channels = kzalloc(sizeof(struct ieee80211_channel) * |
| 527 | priv->channel_count, GFP_KERNEL); |
| 528 | if (!channels) |
| 529 | return -ENOMEM; |
| 530 | |
Daniel C Halperin | 5027309 | 2009-08-28 09:44:45 -0700 | [diff] [blame] | 531 | rates = kzalloc((sizeof(struct ieee80211_rate) * IWL_RATE_COUNT_LEGACY), |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 532 | GFP_KERNEL); |
| 533 | if (!rates) { |
| 534 | kfree(channels); |
| 535 | return -ENOMEM; |
| 536 | } |
| 537 | |
| 538 | /* 5.2GHz channels start after the 2.4GHz channels */ |
| 539 | sband = &priv->bands[IEEE80211_BAND_5GHZ]; |
| 540 | sband->channels = &channels[ARRAY_SIZE(iwl_eeprom_band_1)]; |
| 541 | /* just OFDM */ |
| 542 | sband->bitrates = &rates[IWL_FIRST_OFDM_RATE]; |
Daniel C Halperin | 5027309 | 2009-08-28 09:44:45 -0700 | [diff] [blame] | 543 | sband->n_bitrates = IWL_RATE_COUNT_LEGACY - IWL_FIRST_OFDM_RATE; |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 544 | |
Ron Rindjunsky | 4977929 | 2008-06-30 17:23:21 +0800 | [diff] [blame] | 545 | if (priv->cfg->sku & IWL_SKU_N) |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 546 | iwlcore_init_ht_hw_capab(priv, &sband->ht_cap, |
Ron Rindjunsky | 4977929 | 2008-06-30 17:23:21 +0800 | [diff] [blame] | 547 | IEEE80211_BAND_5GHZ); |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 548 | |
| 549 | sband = &priv->bands[IEEE80211_BAND_2GHZ]; |
| 550 | sband->channels = channels; |
| 551 | /* OFDM & CCK */ |
| 552 | sband->bitrates = rates; |
Daniel C Halperin | 5027309 | 2009-08-28 09:44:45 -0700 | [diff] [blame] | 553 | sband->n_bitrates = IWL_RATE_COUNT_LEGACY; |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 554 | |
Ron Rindjunsky | 4977929 | 2008-06-30 17:23:21 +0800 | [diff] [blame] | 555 | if (priv->cfg->sku & IWL_SKU_N) |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 556 | iwlcore_init_ht_hw_capab(priv, &sband->ht_cap, |
Ron Rindjunsky | 4977929 | 2008-06-30 17:23:21 +0800 | [diff] [blame] | 557 | IEEE80211_BAND_2GHZ); |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 558 | |
| 559 | priv->ieee_channels = channels; |
| 560 | priv->ieee_rates = rates; |
| 561 | |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 562 | for (i = 0; i < priv->channel_count; i++) { |
| 563 | ch = &priv->channel_info[i]; |
| 564 | |
| 565 | /* FIXME: might be removed if scan is OK */ |
| 566 | if (!is_channel_valid(ch)) |
| 567 | continue; |
| 568 | |
| 569 | if (is_channel_a_band(ch)) |
| 570 | sband = &priv->bands[IEEE80211_BAND_5GHZ]; |
| 571 | else |
| 572 | sband = &priv->bands[IEEE80211_BAND_2GHZ]; |
| 573 | |
| 574 | geo_ch = &sband->channels[sband->n_channels++]; |
| 575 | |
| 576 | geo_ch->center_freq = |
| 577 | ieee80211_channel_to_frequency(ch->channel); |
| 578 | geo_ch->max_power = ch->max_power_avg; |
| 579 | geo_ch->max_antenna_gain = 0xff; |
| 580 | geo_ch->hw_value = ch->channel; |
| 581 | |
| 582 | if (is_channel_valid(ch)) { |
| 583 | if (!(ch->flags & EEPROM_CHANNEL_IBSS)) |
| 584 | geo_ch->flags |= IEEE80211_CHAN_NO_IBSS; |
| 585 | |
| 586 | if (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) |
| 587 | geo_ch->flags |= IEEE80211_CHAN_PASSIVE_SCAN; |
| 588 | |
| 589 | if (ch->flags & EEPROM_CHANNEL_RADAR) |
| 590 | geo_ch->flags |= IEEE80211_CHAN_RADAR; |
| 591 | |
Wey-Yi Guy | 7aafef1 | 2009-08-07 15:41:38 -0700 | [diff] [blame] | 592 | geo_ch->flags |= ch->ht40_extension_channel; |
Emmanuel Grumbach | 4d38c2e | 2008-05-29 16:35:24 +0800 | [diff] [blame] | 593 | |
Wey-Yi Guy | dc1b097 | 2009-08-21 13:34:16 -0700 | [diff] [blame] | 594 | if (ch->max_power_avg > priv->tx_power_device_lmt) |
| 595 | priv->tx_power_device_lmt = ch->max_power_avg; |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 596 | } else { |
| 597 | geo_ch->flags |= IEEE80211_CHAN_DISABLED; |
| 598 | } |
| 599 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 600 | IWL_DEBUG_INFO(priv, "Channel %d Freq=%d[%sGHz] %s flag=0x%X\n", |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 601 | ch->channel, geo_ch->center_freq, |
| 602 | is_channel_a_band(ch) ? "5.2" : "2.4", |
| 603 | geo_ch->flags & IEEE80211_CHAN_DISABLED ? |
| 604 | "restricted" : "valid", |
| 605 | geo_ch->flags); |
| 606 | } |
| 607 | |
| 608 | if ((priv->bands[IEEE80211_BAND_5GHZ].n_channels == 0) && |
| 609 | priv->cfg->sku & IWL_SKU_A) { |
Tomas Winkler | 978785a | 2008-12-19 10:37:31 +0800 | [diff] [blame] | 610 | IWL_INFO(priv, "Incorrectly detected BG card as ABG. " |
| 611 | "Please send your PCI ID 0x%04X:0x%04X to maintainer.\n", |
Samuel Ortiz | a3139c5 | 2008-12-19 10:37:09 +0800 | [diff] [blame] | 612 | priv->pci_dev->device, |
| 613 | priv->pci_dev->subsystem_device); |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 614 | priv->cfg->sku &= ~IWL_SKU_A; |
| 615 | } |
| 616 | |
Tomas Winkler | 978785a | 2008-12-19 10:37:31 +0800 | [diff] [blame] | 617 | IWL_INFO(priv, "Tunable channels: %d 802.11bg, %d 802.11a channels\n", |
Samuel Ortiz | a3139c5 | 2008-12-19 10:37:09 +0800 | [diff] [blame] | 618 | priv->bands[IEEE80211_BAND_2GHZ].n_channels, |
| 619 | priv->bands[IEEE80211_BAND_5GHZ].n_channels); |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 620 | |
| 621 | set_bit(STATUS_GEO_CONFIGURED, &priv->status); |
| 622 | |
| 623 | return 0; |
| 624 | } |
Samuel Ortiz | 534166d | 2009-01-23 13:45:16 -0800 | [diff] [blame] | 625 | EXPORT_SYMBOL(iwlcore_init_geos); |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 626 | |
| 627 | /* |
| 628 | * iwlcore_free_geos - undo allocations in iwlcore_init_geos |
| 629 | */ |
Samuel Ortiz | 534166d | 2009-01-23 13:45:16 -0800 | [diff] [blame] | 630 | void iwlcore_free_geos(struct iwl_priv *priv) |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 631 | { |
| 632 | kfree(priv->ieee_channels); |
| 633 | kfree(priv->ieee_rates); |
| 634 | clear_bit(STATUS_GEO_CONFIGURED, &priv->status); |
| 635 | } |
Samuel Ortiz | 534166d | 2009-01-23 13:45:16 -0800 | [diff] [blame] | 636 | EXPORT_SYMBOL(iwlcore_free_geos); |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 637 | |
Abhijeet Kolekar | 37dc70f | 2009-10-09 13:20:30 -0700 | [diff] [blame] | 638 | /* |
| 639 | * iwlcore_rts_tx_cmd_flag: Set rts/cts. 3945 and 4965 only share this |
| 640 | * function. |
| 641 | */ |
| 642 | void iwlcore_rts_tx_cmd_flag(struct ieee80211_tx_info *info, |
| 643 | __le32 *tx_flags) |
| 644 | { |
| 645 | if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) { |
| 646 | *tx_flags |= TX_CMD_FLG_RTS_MSK; |
| 647 | *tx_flags &= ~TX_CMD_FLG_CTS_MSK; |
| 648 | } else if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { |
| 649 | *tx_flags &= ~TX_CMD_FLG_RTS_MSK; |
| 650 | *tx_flags |= TX_CMD_FLG_CTS_MSK; |
| 651 | } |
| 652 | } |
| 653 | EXPORT_SYMBOL(iwlcore_rts_tx_cmd_flag); |
| 654 | |
Tomas Winkler | 28a6b07 | 2008-09-03 11:18:47 +0800 | [diff] [blame] | 655 | static bool is_single_rx_stream(struct iwl_priv *priv) |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 656 | { |
Johannes Berg | ba37a3d | 2009-12-10 14:37:27 -0800 | [diff] [blame] | 657 | return priv->current_ht_config.smps == IEEE80211_SMPS_STATIC || |
Johannes Berg | 02bb1be | 2009-09-11 10:38:17 -0700 | [diff] [blame] | 658 | priv->current_ht_config.single_chain_sufficient; |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 659 | } |
Emmanuel Grumbach | 963f551 | 2008-06-12 09:47:00 +0800 | [diff] [blame] | 660 | |
Tomas Winkler | 47c5196 | 2008-05-05 10:22:41 +0800 | [diff] [blame] | 661 | static u8 iwl_is_channel_extension(struct iwl_priv *priv, |
| 662 | enum ieee80211_band band, |
| 663 | u16 channel, u8 extension_chan_offset) |
| 664 | { |
| 665 | const struct iwl_channel_info *ch_info; |
| 666 | |
| 667 | ch_info = iwl_get_channel_info(priv, band, channel); |
| 668 | if (!is_channel_valid(ch_info)) |
| 669 | return 0; |
| 670 | |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 671 | if (extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_ABOVE) |
Wey-Yi Guy | 7aafef1 | 2009-08-07 15:41:38 -0700 | [diff] [blame] | 672 | return !(ch_info->ht40_extension_channel & |
Luis R. Rodriguez | 689da1b | 2009-05-02 00:37:18 -0400 | [diff] [blame] | 673 | IEEE80211_CHAN_NO_HT40PLUS); |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 674 | else if (extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_BELOW) |
Wey-Yi Guy | 7aafef1 | 2009-08-07 15:41:38 -0700 | [diff] [blame] | 675 | return !(ch_info->ht40_extension_channel & |
Luis R. Rodriguez | 689da1b | 2009-05-02 00:37:18 -0400 | [diff] [blame] | 676 | IEEE80211_CHAN_NO_HT40MINUS); |
Tomas Winkler | 47c5196 | 2008-05-05 10:22:41 +0800 | [diff] [blame] | 677 | |
| 678 | return 0; |
| 679 | } |
| 680 | |
Wey-Yi Guy | 7aafef1 | 2009-08-07 15:41:38 -0700 | [diff] [blame] | 681 | u8 iwl_is_ht40_tx_allowed(struct iwl_priv *priv, |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 682 | struct ieee80211_sta_ht_cap *sta_ht_inf) |
Tomas Winkler | 47c5196 | 2008-05-05 10:22:41 +0800 | [diff] [blame] | 683 | { |
Johannes Berg | fad95bf | 2009-09-11 10:38:15 -0700 | [diff] [blame] | 684 | struct iwl_ht_config *ht_conf = &priv->current_ht_config; |
Tomas Winkler | 47c5196 | 2008-05-05 10:22:41 +0800 | [diff] [blame] | 685 | |
Johannes Berg | fad95bf | 2009-09-11 10:38:15 -0700 | [diff] [blame] | 686 | if (!ht_conf->is_ht || !ht_conf->is_40mhz) |
Tomas Winkler | 47c5196 | 2008-05-05 10:22:41 +0800 | [diff] [blame] | 687 | return 0; |
| 688 | |
Wey-Yi Guy | a2b0f02 | 2009-05-22 11:01:49 -0700 | [diff] [blame] | 689 | /* We do not check for IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
| 690 | * the bit will not set if it is pure 40MHz case |
| 691 | */ |
Tomas Winkler | 47c5196 | 2008-05-05 10:22:41 +0800 | [diff] [blame] | 692 | if (sta_ht_inf) { |
Wey-Yi Guy | a2b0f02 | 2009-05-22 11:01:49 -0700 | [diff] [blame] | 693 | if (!sta_ht_inf->ht_supported) |
Tomas Winkler | 47c5196 | 2008-05-05 10:22:41 +0800 | [diff] [blame] | 694 | return 0; |
| 695 | } |
Wey-Yi Guy | 1e4247d | 2009-07-27 13:50:15 -0700 | [diff] [blame] | 696 | #ifdef CONFIG_IWLWIFI_DEBUG |
| 697 | if (priv->disable_ht40) |
| 698 | return 0; |
| 699 | #endif |
Wey-Yi Guy | 611d3eb | 2009-06-12 13:22:51 -0700 | [diff] [blame] | 700 | return iwl_is_channel_extension(priv, priv->band, |
| 701 | le16_to_cpu(priv->staging_rxon.channel), |
Johannes Berg | fad95bf | 2009-09-11 10:38:15 -0700 | [diff] [blame] | 702 | ht_conf->extension_chan_offset); |
Tomas Winkler | 47c5196 | 2008-05-05 10:22:41 +0800 | [diff] [blame] | 703 | } |
Wey-Yi Guy | 7aafef1 | 2009-08-07 15:41:38 -0700 | [diff] [blame] | 704 | EXPORT_SYMBOL(iwl_is_ht40_tx_allowed); |
Tomas Winkler | 47c5196 | 2008-05-05 10:22:41 +0800 | [diff] [blame] | 705 | |
Tomas Winkler | 2c2f3b3 | 2009-06-19 13:52:45 -0700 | [diff] [blame] | 706 | static u16 iwl_adjust_beacon_interval(u16 beacon_val, u16 max_beacon_val) |
| 707 | { |
| 708 | u16 new_val = 0; |
| 709 | u16 beacon_factor = 0; |
| 710 | |
| 711 | beacon_factor = (beacon_val + max_beacon_val) / max_beacon_val; |
| 712 | new_val = beacon_val / beacon_factor; |
| 713 | |
| 714 | if (!new_val) |
| 715 | new_val = max_beacon_val; |
| 716 | |
| 717 | return new_val; |
| 718 | } |
| 719 | |
| 720 | void iwl_setup_rxon_timing(struct iwl_priv *priv) |
| 721 | { |
| 722 | u64 tsf; |
| 723 | s32 interval_tm, rem; |
| 724 | unsigned long flags; |
| 725 | struct ieee80211_conf *conf = NULL; |
| 726 | u16 beacon_int; |
| 727 | |
| 728 | conf = ieee80211_get_hw_conf(priv->hw); |
| 729 | |
| 730 | spin_lock_irqsave(&priv->lock, flags); |
| 731 | priv->rxon_timing.timestamp = cpu_to_le64(priv->timestamp); |
| 732 | priv->rxon_timing.listen_interval = cpu_to_le16(conf->listen_interval); |
| 733 | |
| 734 | if (priv->iw_mode == NL80211_IFTYPE_STATION) { |
| 735 | beacon_int = priv->beacon_int; |
| 736 | priv->rxon_timing.atim_window = 0; |
| 737 | } else { |
| 738 | beacon_int = priv->vif->bss_conf.beacon_int; |
| 739 | |
| 740 | /* TODO: we need to get atim_window from upper stack |
| 741 | * for now we set to 0 */ |
| 742 | priv->rxon_timing.atim_window = 0; |
| 743 | } |
| 744 | |
| 745 | beacon_int = iwl_adjust_beacon_interval(beacon_int, |
| 746 | priv->hw_params.max_beacon_itrvl * 1024); |
| 747 | priv->rxon_timing.beacon_interval = cpu_to_le16(beacon_int); |
| 748 | |
| 749 | tsf = priv->timestamp; /* tsf is modifed by do_div: copy it */ |
| 750 | interval_tm = beacon_int * 1024; |
| 751 | rem = do_div(tsf, interval_tm); |
| 752 | priv->rxon_timing.beacon_init_val = cpu_to_le32(interval_tm - rem); |
| 753 | |
| 754 | spin_unlock_irqrestore(&priv->lock, flags); |
| 755 | IWL_DEBUG_ASSOC(priv, |
| 756 | "beacon interval %d beacon timer %d beacon tim %d\n", |
| 757 | le16_to_cpu(priv->rxon_timing.beacon_interval), |
| 758 | le32_to_cpu(priv->rxon_timing.beacon_init_val), |
| 759 | le16_to_cpu(priv->rxon_timing.atim_window)); |
| 760 | } |
| 761 | EXPORT_SYMBOL(iwl_setup_rxon_timing); |
| 762 | |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 763 | void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt) |
| 764 | { |
| 765 | struct iwl_rxon_cmd *rxon = &priv->staging_rxon; |
| 766 | |
| 767 | if (hw_decrypt) |
| 768 | rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK; |
| 769 | else |
| 770 | rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK; |
| 771 | |
| 772 | } |
| 773 | EXPORT_SYMBOL(iwl_set_rxon_hwcrypto); |
| 774 | |
| 775 | /** |
| 776 | * iwl_check_rxon_cmd - validate RXON structure is valid |
| 777 | * |
| 778 | * NOTE: This is really only useful during development and can eventually |
| 779 | * be #ifdef'd out once the driver is stable and folks aren't actively |
| 780 | * making changes |
| 781 | */ |
| 782 | int iwl_check_rxon_cmd(struct iwl_priv *priv) |
| 783 | { |
| 784 | int error = 0; |
| 785 | int counter = 1; |
| 786 | struct iwl_rxon_cmd *rxon = &priv->staging_rxon; |
| 787 | |
| 788 | if (rxon->flags & RXON_FLG_BAND_24G_MSK) { |
| 789 | error |= le32_to_cpu(rxon->flags & |
| 790 | (RXON_FLG_TGJ_NARROW_BAND_MSK | |
| 791 | RXON_FLG_RADAR_DETECT_MSK)); |
| 792 | if (error) |
| 793 | IWL_WARN(priv, "check 24G fields %d | %d\n", |
| 794 | counter++, error); |
| 795 | } else { |
| 796 | error |= (rxon->flags & RXON_FLG_SHORT_SLOT_MSK) ? |
| 797 | 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK); |
| 798 | if (error) |
| 799 | IWL_WARN(priv, "check 52 fields %d | %d\n", |
| 800 | counter++, error); |
| 801 | error |= le32_to_cpu(rxon->flags & RXON_FLG_CCK_MSK); |
| 802 | if (error) |
| 803 | IWL_WARN(priv, "check 52 CCK %d | %d\n", |
| 804 | counter++, error); |
| 805 | } |
| 806 | error |= (rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1; |
| 807 | if (error) |
| 808 | IWL_WARN(priv, "check mac addr %d | %d\n", counter++, error); |
| 809 | |
| 810 | /* make sure basic rates 6Mbps and 1Mbps are supported */ |
| 811 | error |= (((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0) && |
| 812 | ((rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0)); |
| 813 | if (error) |
| 814 | IWL_WARN(priv, "check basic rate %d | %d\n", counter++, error); |
| 815 | |
| 816 | error |= (le16_to_cpu(rxon->assoc_id) > 2007); |
| 817 | if (error) |
| 818 | IWL_WARN(priv, "check assoc id %d | %d\n", counter++, error); |
| 819 | |
| 820 | error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)) |
| 821 | == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)); |
| 822 | if (error) |
| 823 | IWL_WARN(priv, "check CCK and short slot %d | %d\n", |
| 824 | counter++, error); |
| 825 | |
| 826 | error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)) |
| 827 | == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)); |
| 828 | if (error) |
| 829 | IWL_WARN(priv, "check CCK & auto detect %d | %d\n", |
| 830 | counter++, error); |
| 831 | |
| 832 | error |= ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK | |
| 833 | RXON_FLG_TGG_PROTECT_MSK)) == RXON_FLG_TGG_PROTECT_MSK); |
| 834 | if (error) |
| 835 | IWL_WARN(priv, "check TGG and auto detect %d | %d\n", |
| 836 | counter++, error); |
| 837 | |
| 838 | if (error) |
| 839 | IWL_WARN(priv, "Tuning to channel %d\n", |
| 840 | le16_to_cpu(rxon->channel)); |
| 841 | |
| 842 | if (error) { |
| 843 | IWL_ERR(priv, "Not a valid iwl_rxon_assoc_cmd field values\n"); |
| 844 | return -1; |
| 845 | } |
| 846 | return 0; |
| 847 | } |
| 848 | EXPORT_SYMBOL(iwl_check_rxon_cmd); |
| 849 | |
| 850 | /** |
| 851 | * iwl_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed |
| 852 | * @priv: staging_rxon is compared to active_rxon |
| 853 | * |
| 854 | * If the RXON structure is changing enough to require a new tune, |
| 855 | * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that |
| 856 | * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required. |
| 857 | */ |
| 858 | int iwl_full_rxon_required(struct iwl_priv *priv) |
| 859 | { |
| 860 | |
| 861 | /* These items are only settable from the full RXON command */ |
| 862 | if (!(iwl_is_associated(priv)) || |
| 863 | compare_ether_addr(priv->staging_rxon.bssid_addr, |
| 864 | priv->active_rxon.bssid_addr) || |
| 865 | compare_ether_addr(priv->staging_rxon.node_addr, |
| 866 | priv->active_rxon.node_addr) || |
| 867 | compare_ether_addr(priv->staging_rxon.wlap_bssid_addr, |
| 868 | priv->active_rxon.wlap_bssid_addr) || |
| 869 | (priv->staging_rxon.dev_type != priv->active_rxon.dev_type) || |
| 870 | (priv->staging_rxon.channel != priv->active_rxon.channel) || |
| 871 | (priv->staging_rxon.air_propagation != |
| 872 | priv->active_rxon.air_propagation) || |
| 873 | (priv->staging_rxon.ofdm_ht_single_stream_basic_rates != |
| 874 | priv->active_rxon.ofdm_ht_single_stream_basic_rates) || |
| 875 | (priv->staging_rxon.ofdm_ht_dual_stream_basic_rates != |
| 876 | priv->active_rxon.ofdm_ht_dual_stream_basic_rates) || |
Daniel C Halperin | c2105fa | 2009-04-08 11:39:30 -0700 | [diff] [blame] | 877 | (priv->staging_rxon.ofdm_ht_triple_stream_basic_rates != |
| 878 | priv->active_rxon.ofdm_ht_triple_stream_basic_rates) || |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 879 | (priv->staging_rxon.assoc_id != priv->active_rxon.assoc_id)) |
| 880 | return 1; |
| 881 | |
| 882 | /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can |
| 883 | * be updated with the RXON_ASSOC command -- however only some |
| 884 | * flag transitions are allowed using RXON_ASSOC */ |
| 885 | |
| 886 | /* Check if we are not switching bands */ |
| 887 | if ((priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) != |
| 888 | (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK)) |
| 889 | return 1; |
| 890 | |
| 891 | /* Check if we are switching association toggle */ |
| 892 | if ((priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) != |
| 893 | (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK)) |
| 894 | return 1; |
| 895 | |
| 896 | return 0; |
| 897 | } |
| 898 | EXPORT_SYMBOL(iwl_full_rxon_required); |
| 899 | |
| 900 | u8 iwl_rate_get_lowest_plcp(struct iwl_priv *priv) |
| 901 | { |
| 902 | int i; |
| 903 | int rate_mask; |
| 904 | |
| 905 | /* Set rate mask*/ |
| 906 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) |
| 907 | rate_mask = priv->active_rate_basic & IWL_CCK_RATES_MASK; |
| 908 | else |
| 909 | rate_mask = priv->active_rate_basic & IWL_OFDM_RATES_MASK; |
| 910 | |
| 911 | /* Find lowest valid rate */ |
| 912 | for (i = IWL_RATE_1M_INDEX; i != IWL_RATE_INVALID; |
| 913 | i = iwl_rates[i].next_ieee) { |
| 914 | if (rate_mask & (1 << i)) |
| 915 | return iwl_rates[i].plcp; |
| 916 | } |
| 917 | |
| 918 | /* No valid rate was found. Assign the lowest one */ |
| 919 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) |
| 920 | return IWL_RATE_1M_PLCP; |
| 921 | else |
| 922 | return IWL_RATE_6M_PLCP; |
| 923 | } |
| 924 | EXPORT_SYMBOL(iwl_rate_get_lowest_plcp); |
| 925 | |
Johannes Berg | fad95bf | 2009-09-11 10:38:15 -0700 | [diff] [blame] | 926 | void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_config *ht_conf) |
Tomas Winkler | 47c5196 | 2008-05-05 10:22:41 +0800 | [diff] [blame] | 927 | { |
Gregory Greenman | c1adf9f | 2008-05-15 13:53:59 +0800 | [diff] [blame] | 928 | struct iwl_rxon_cmd *rxon = &priv->staging_rxon; |
Tomas Winkler | 47c5196 | 2008-05-05 10:22:41 +0800 | [diff] [blame] | 929 | |
Johannes Berg | fad95bf | 2009-09-11 10:38:15 -0700 | [diff] [blame] | 930 | if (!ht_conf->is_ht) { |
Wey-Yi Guy | a2b0f02 | 2009-05-22 11:01:49 -0700 | [diff] [blame] | 931 | rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MSK | |
Emmanuel Grumbach | 42eb7c6 | 2008-09-17 10:10:05 +0800 | [diff] [blame] | 932 | RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK | |
Wey-Yi Guy | 7aafef1 | 2009-08-07 15:41:38 -0700 | [diff] [blame] | 933 | RXON_FLG_HT40_PROT_MSK | |
Emmanuel Grumbach | 42eb7c6 | 2008-09-17 10:10:05 +0800 | [diff] [blame] | 934 | RXON_FLG_HT_PROT_MSK); |
Tomas Winkler | 47c5196 | 2008-05-05 10:22:41 +0800 | [diff] [blame] | 935 | return; |
Emmanuel Grumbach | 42eb7c6 | 2008-09-17 10:10:05 +0800 | [diff] [blame] | 936 | } |
Tomas Winkler | 47c5196 | 2008-05-05 10:22:41 +0800 | [diff] [blame] | 937 | |
Wey-Yi Guy | a2b0f02 | 2009-05-22 11:01:49 -0700 | [diff] [blame] | 938 | /* FIXME: if the definition of ht_protection changed, the "translation" |
| 939 | * will be needed for rxon->flags |
| 940 | */ |
Johannes Berg | fad95bf | 2009-09-11 10:38:15 -0700 | [diff] [blame] | 941 | rxon->flags |= cpu_to_le32(ht_conf->ht_protection << RXON_FLG_HT_OPERATING_MODE_POS); |
Tomas Winkler | 47c5196 | 2008-05-05 10:22:41 +0800 | [diff] [blame] | 942 | |
Wey-Yi Guy | a2b0f02 | 2009-05-22 11:01:49 -0700 | [diff] [blame] | 943 | /* Set up channel bandwidth: |
Wey-Yi Guy | 7aafef1 | 2009-08-07 15:41:38 -0700 | [diff] [blame] | 944 | * 20 MHz only, 20/40 mixed or pure 40 if ht40 ok */ |
Wey-Yi Guy | a2b0f02 | 2009-05-22 11:01:49 -0700 | [diff] [blame] | 945 | /* clear the HT channel mode before set the mode */ |
| 946 | rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MSK | |
| 947 | RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK); |
Wey-Yi Guy | 7aafef1 | 2009-08-07 15:41:38 -0700 | [diff] [blame] | 948 | if (iwl_is_ht40_tx_allowed(priv, NULL)) { |
| 949 | /* pure ht40 */ |
Johannes Berg | fad95bf | 2009-09-11 10:38:15 -0700 | [diff] [blame] | 950 | if (ht_conf->ht_protection == IEEE80211_HT_OP_MODE_PROTECTION_20MHZ) { |
Wey-Yi Guy | a2b0f02 | 2009-05-22 11:01:49 -0700 | [diff] [blame] | 951 | rxon->flags |= RXON_FLG_CHANNEL_MODE_PURE_40; |
Wey-Yi Guy | 508b08e | 2009-06-12 13:22:50 -0700 | [diff] [blame] | 952 | /* Note: control channel is opposite of extension channel */ |
Johannes Berg | fad95bf | 2009-09-11 10:38:15 -0700 | [diff] [blame] | 953 | switch (ht_conf->extension_chan_offset) { |
Wey-Yi Guy | 508b08e | 2009-06-12 13:22:50 -0700 | [diff] [blame] | 954 | case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: |
| 955 | rxon->flags &= ~RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK; |
| 956 | break; |
| 957 | case IEEE80211_HT_PARAM_CHA_SEC_BELOW: |
| 958 | rxon->flags |= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK; |
| 959 | break; |
| 960 | } |
| 961 | } else { |
Wey-Yi Guy | a2b0f02 | 2009-05-22 11:01:49 -0700 | [diff] [blame] | 962 | /* Note: control channel is opposite of extension channel */ |
Johannes Berg | fad95bf | 2009-09-11 10:38:15 -0700 | [diff] [blame] | 963 | switch (ht_conf->extension_chan_offset) { |
Wey-Yi Guy | a2b0f02 | 2009-05-22 11:01:49 -0700 | [diff] [blame] | 964 | case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: |
| 965 | rxon->flags &= ~(RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK); |
| 966 | rxon->flags |= RXON_FLG_CHANNEL_MODE_MIXED; |
| 967 | break; |
| 968 | case IEEE80211_HT_PARAM_CHA_SEC_BELOW: |
| 969 | rxon->flags |= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK; |
| 970 | rxon->flags |= RXON_FLG_CHANNEL_MODE_MIXED; |
| 971 | break; |
| 972 | case IEEE80211_HT_PARAM_CHA_SEC_NONE: |
| 973 | default: |
| 974 | /* channel location only valid if in Mixed mode */ |
| 975 | IWL_ERR(priv, "invalid extension channel offset\n"); |
| 976 | break; |
| 977 | } |
| 978 | } |
| 979 | } else { |
| 980 | rxon->flags |= RXON_FLG_CHANNEL_MODE_LEGACY; |
Tomas Winkler | 47c5196 | 2008-05-05 10:22:41 +0800 | [diff] [blame] | 981 | } |
| 982 | |
Abhijeet Kolekar | 4582353 | 2009-04-08 11:26:44 -0700 | [diff] [blame] | 983 | if (priv->cfg->ops->hcmd->set_rxon_chain) |
| 984 | priv->cfg->ops->hcmd->set_rxon_chain(priv); |
Tomas Winkler | 47c5196 | 2008-05-05 10:22:41 +0800 | [diff] [blame] | 985 | |
Johannes Berg | 02bb1be | 2009-09-11 10:38:17 -0700 | [diff] [blame] | 986 | IWL_DEBUG_ASSOC(priv, "rxon flags 0x%X operation mode :0x%X " |
Johannes Berg | ae5eb02 | 2008-10-14 16:58:37 +0200 | [diff] [blame] | 987 | "extension channel offset 0x%x\n", |
Johannes Berg | fad95bf | 2009-09-11 10:38:15 -0700 | [diff] [blame] | 988 | le32_to_cpu(rxon->flags), ht_conf->ht_protection, |
| 989 | ht_conf->extension_chan_offset); |
Tomas Winkler | 47c5196 | 2008-05-05 10:22:41 +0800 | [diff] [blame] | 990 | return; |
| 991 | } |
| 992 | EXPORT_SYMBOL(iwl_set_rxon_ht); |
| 993 | |
Tomas Winkler | 9e5e6c3 | 2008-09-16 14:01:04 +0800 | [diff] [blame] | 994 | #define IWL_NUM_RX_CHAINS_MULTIPLE 3 |
| 995 | #define IWL_NUM_RX_CHAINS_SINGLE 2 |
| 996 | #define IWL_NUM_IDLE_CHAINS_DUAL 2 |
| 997 | #define IWL_NUM_IDLE_CHAINS_SINGLE 1 |
| 998 | |
Johannes Berg | 2b396a1 | 2009-09-25 14:24:25 -0700 | [diff] [blame] | 999 | /* |
| 1000 | * Determine how many receiver/antenna chains to use. |
| 1001 | * |
| 1002 | * More provides better reception via diversity. Fewer saves power |
| 1003 | * at the expense of throughput, but only when not in powersave to |
| 1004 | * start with. |
| 1005 | * |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 1006 | * MIMO (dual stream) requires at least 2, but works better with 3. |
| 1007 | * This does not determine *which* chains to use, just how many. |
| 1008 | */ |
Tomas Winkler | 28a6b07 | 2008-09-03 11:18:47 +0800 | [diff] [blame] | 1009 | static int iwl_get_active_rx_chain_count(struct iwl_priv *priv) |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 1010 | { |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 1011 | /* # of Rx chains to use when expecting MIMO. */ |
Johannes Berg | 02bb1be | 2009-09-11 10:38:17 -0700 | [diff] [blame] | 1012 | if (is_single_rx_stream(priv)) |
Tomas Winkler | 9e5e6c3 | 2008-09-16 14:01:04 +0800 | [diff] [blame] | 1013 | return IWL_NUM_RX_CHAINS_SINGLE; |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 1014 | else |
Tomas Winkler | 9e5e6c3 | 2008-09-16 14:01:04 +0800 | [diff] [blame] | 1015 | return IWL_NUM_RX_CHAINS_MULTIPLE; |
Tomas Winkler | 28a6b07 | 2008-09-03 11:18:47 +0800 | [diff] [blame] | 1016 | } |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 1017 | |
Johannes Berg | 2b396a1 | 2009-09-25 14:24:25 -0700 | [diff] [blame] | 1018 | /* |
Wey-Yi Guy | 3f3e037 | 2009-10-30 14:36:17 -0700 | [diff] [blame] | 1019 | * When we are in power saving mode, unless device support spatial |
| 1020 | * multiplexing power save, use the active count for rx chain count. |
Johannes Berg | 2b396a1 | 2009-09-25 14:24:25 -0700 | [diff] [blame] | 1021 | */ |
Tomas Winkler | 28a6b07 | 2008-09-03 11:18:47 +0800 | [diff] [blame] | 1022 | static int iwl_get_idle_rx_chain_count(struct iwl_priv *priv, int active_cnt) |
| 1023 | { |
Johannes Berg | ba37a3d | 2009-12-10 14:37:27 -0800 | [diff] [blame] | 1024 | /* # Rx chains when idling, depending on SMPS mode */ |
| 1025 | switch (priv->current_ht_config.smps) { |
| 1026 | case IEEE80211_SMPS_STATIC: |
| 1027 | case IEEE80211_SMPS_DYNAMIC: |
| 1028 | return IWL_NUM_IDLE_CHAINS_SINGLE; |
| 1029 | case IEEE80211_SMPS_OFF: |
| 1030 | return active_cnt; |
Wey-Yi Guy | c15d20c | 2009-11-20 12:04:55 -0800 | [diff] [blame] | 1031 | default: |
Johannes Berg | ba37a3d | 2009-12-10 14:37:27 -0800 | [diff] [blame] | 1032 | WARN(1, "invalid SMPS mode %d", |
| 1033 | priv->current_ht_config.smps); |
| 1034 | return active_cnt; |
Wey-Yi Guy | 3f3e037 | 2009-10-30 14:36:17 -0700 | [diff] [blame] | 1035 | } |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 1036 | } |
| 1037 | |
Grumbach, Emmanuel | 0481644 | 2008-09-03 11:26:53 +0800 | [diff] [blame] | 1038 | /* up to 4 chains */ |
| 1039 | static u8 iwl_count_chain_bitmap(u32 chain_bitmap) |
| 1040 | { |
| 1041 | u8 res; |
| 1042 | res = (chain_bitmap & BIT(0)) >> 0; |
| 1043 | res += (chain_bitmap & BIT(1)) >> 1; |
| 1044 | res += (chain_bitmap & BIT(2)) >> 2; |
Johannes Berg | 9bddbab | 2009-09-25 14:24:24 -0700 | [diff] [blame] | 1045 | res += (chain_bitmap & BIT(3)) >> 3; |
Grumbach, Emmanuel | 0481644 | 2008-09-03 11:26:53 +0800 | [diff] [blame] | 1046 | return res; |
| 1047 | } |
| 1048 | |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 1049 | /** |
Chatre, Reinette | 4c4df78 | 2009-01-23 13:45:09 -0800 | [diff] [blame] | 1050 | * iwl_is_monitor_mode - Determine if interface in monitor mode |
| 1051 | * |
| 1052 | * priv->iw_mode is set in add_interface, but add_interface is |
| 1053 | * never called for monitor mode. The only way mac80211 informs us about |
| 1054 | * monitor mode is through configuring filters (call to configure_filter). |
| 1055 | */ |
Wey-Yi Guy | 279b05d | 2009-04-20 14:37:00 -0700 | [diff] [blame] | 1056 | bool iwl_is_monitor_mode(struct iwl_priv *priv) |
Chatre, Reinette | 4c4df78 | 2009-01-23 13:45:09 -0800 | [diff] [blame] | 1057 | { |
| 1058 | return !!(priv->staging_rxon.filter_flags & RXON_FILTER_PROMISC_MSK); |
| 1059 | } |
Wey-Yi Guy | 279b05d | 2009-04-20 14:37:00 -0700 | [diff] [blame] | 1060 | EXPORT_SYMBOL(iwl_is_monitor_mode); |
Chatre, Reinette | 4c4df78 | 2009-01-23 13:45:09 -0800 | [diff] [blame] | 1061 | |
| 1062 | /** |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 1063 | * iwl_set_rxon_chain - Set up Rx chain usage in "staging" RXON image |
| 1064 | * |
| 1065 | * Selects how many and which Rx receivers/antennas/chains to use. |
| 1066 | * This should not be used for scan command ... it puts data in wrong place. |
| 1067 | */ |
| 1068 | void iwl_set_rxon_chain(struct iwl_priv *priv) |
| 1069 | { |
Tomas Winkler | 28a6b07 | 2008-09-03 11:18:47 +0800 | [diff] [blame] | 1070 | bool is_single = is_single_rx_stream(priv); |
| 1071 | bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status); |
Grumbach, Emmanuel | 0481644 | 2008-09-03 11:26:53 +0800 | [diff] [blame] | 1072 | u8 idle_rx_cnt, active_rx_cnt, valid_rx_cnt; |
| 1073 | u32 active_chains; |
Tomas Winkler | 28a6b07 | 2008-09-03 11:18:47 +0800 | [diff] [blame] | 1074 | u16 rx_chain; |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 1075 | |
| 1076 | /* Tell uCode which antennas are actually connected. |
| 1077 | * Before first association, we assume all antennas are connected. |
| 1078 | * Just after first association, iwl_chain_noise_calibration() |
| 1079 | * checks which antennas actually *are* connected. */ |
Grumbach, Emmanuel | 0481644 | 2008-09-03 11:26:53 +0800 | [diff] [blame] | 1080 | if (priv->chain_noise_data.active_chains) |
| 1081 | active_chains = priv->chain_noise_data.active_chains; |
| 1082 | else |
| 1083 | active_chains = priv->hw_params.valid_rx_ant; |
| 1084 | |
| 1085 | rx_chain = active_chains << RXON_RX_CHAIN_VALID_POS; |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 1086 | |
| 1087 | /* How many receivers should we use? */ |
Tomas Winkler | 28a6b07 | 2008-09-03 11:18:47 +0800 | [diff] [blame] | 1088 | active_rx_cnt = iwl_get_active_rx_chain_count(priv); |
| 1089 | idle_rx_cnt = iwl_get_idle_rx_chain_count(priv, active_rx_cnt); |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 1090 | |
Tomas Winkler | 28a6b07 | 2008-09-03 11:18:47 +0800 | [diff] [blame] | 1091 | |
Grumbach, Emmanuel | 0481644 | 2008-09-03 11:26:53 +0800 | [diff] [blame] | 1092 | /* correct rx chain count according hw settings |
| 1093 | * and chain noise calibration |
| 1094 | */ |
| 1095 | valid_rx_cnt = iwl_count_chain_bitmap(active_chains); |
| 1096 | if (valid_rx_cnt < active_rx_cnt) |
| 1097 | active_rx_cnt = valid_rx_cnt; |
| 1098 | |
| 1099 | if (valid_rx_cnt < idle_rx_cnt) |
| 1100 | idle_rx_cnt = valid_rx_cnt; |
Tomas Winkler | 28a6b07 | 2008-09-03 11:18:47 +0800 | [diff] [blame] | 1101 | |
| 1102 | rx_chain |= active_rx_cnt << RXON_RX_CHAIN_MIMO_CNT_POS; |
| 1103 | rx_chain |= idle_rx_cnt << RXON_RX_CHAIN_CNT_POS; |
| 1104 | |
Rick Farrington | 7b84172 | 2009-01-23 13:45:10 -0800 | [diff] [blame] | 1105 | /* copied from 'iwl_bg_request_scan()' */ |
| 1106 | /* Force use of chains B and C (0x6) for Rx for 4965 |
| 1107 | * Avoid A (0x1) because of its off-channel reception on A-band. |
| 1108 | * MIMO is not used here, but value is required */ |
| 1109 | if (iwl_is_monitor_mode(priv) && |
| 1110 | !(priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) && |
| 1111 | ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965)) { |
Wey-Yi Guy | fff7a43 | 2009-05-08 13:44:42 -0700 | [diff] [blame] | 1112 | rx_chain = ANT_ABC << RXON_RX_CHAIN_VALID_POS; |
| 1113 | rx_chain |= ANT_BC << RXON_RX_CHAIN_FORCE_SEL_POS; |
| 1114 | rx_chain |= ANT_ABC << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS; |
| 1115 | rx_chain |= 0x1 << RXON_RX_CHAIN_DRIVER_FORCE_POS; |
Rick Farrington | 7b84172 | 2009-01-23 13:45:10 -0800 | [diff] [blame] | 1116 | } |
| 1117 | |
Tomas Winkler | 28a6b07 | 2008-09-03 11:18:47 +0800 | [diff] [blame] | 1118 | priv->staging_rxon.rx_chain = cpu_to_le16(rx_chain); |
| 1119 | |
Tomas Winkler | 9e5e6c3 | 2008-09-16 14:01:04 +0800 | [diff] [blame] | 1120 | if (!is_single && (active_rx_cnt >= IWL_NUM_RX_CHAINS_SINGLE) && is_cam) |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 1121 | priv->staging_rxon.rx_chain |= RXON_RX_CHAIN_MIMO_FORCE_MSK; |
| 1122 | else |
| 1123 | priv->staging_rxon.rx_chain &= ~RXON_RX_CHAIN_MIMO_FORCE_MSK; |
| 1124 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1125 | IWL_DEBUG_ASSOC(priv, "rx_chain=0x%X active=%d idle=%d\n", |
Tomas Winkler | 28a6b07 | 2008-09-03 11:18:47 +0800 | [diff] [blame] | 1126 | priv->staging_rxon.rx_chain, |
| 1127 | active_rx_cnt, idle_rx_cnt); |
| 1128 | |
| 1129 | WARN_ON(active_rx_cnt == 0 || idle_rx_cnt == 0 || |
| 1130 | active_rx_cnt < idle_rx_cnt); |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 1131 | } |
| 1132 | EXPORT_SYMBOL(iwl_set_rxon_chain); |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 1133 | |
| 1134 | /** |
Tomas Winkler | 17e7278 | 2008-09-03 11:26:26 +0800 | [diff] [blame] | 1135 | * iwl_set_rxon_channel - Set the phymode and channel values in staging RXON |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 1136 | * @phymode: MODE_IEEE80211A sets to 5.2GHz; all else set to 2.4GHz |
| 1137 | * @channel: Any channel valid for the requested phymode |
| 1138 | |
| 1139 | * In addition to setting the staging RXON, priv->phymode is also set. |
| 1140 | * |
| 1141 | * NOTE: Does not commit to the hardware; it sets appropriate bit fields |
| 1142 | * in the staging RXON flag structure based on the phymode |
| 1143 | */ |
Tomas Winkler | 17e7278 | 2008-09-03 11:26:26 +0800 | [diff] [blame] | 1144 | int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch) |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 1145 | { |
Tomas Winkler | 17e7278 | 2008-09-03 11:26:26 +0800 | [diff] [blame] | 1146 | enum ieee80211_band band = ch->band; |
| 1147 | u16 channel = ieee80211_frequency_to_channel(ch->center_freq); |
| 1148 | |
Assaf Krauss | 8622e70 | 2008-03-21 13:53:43 -0700 | [diff] [blame] | 1149 | if (!iwl_get_channel_info(priv, band, channel)) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1150 | IWL_DEBUG_INFO(priv, "Could not set channel to %d [%d]\n", |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 1151 | channel, band); |
| 1152 | return -EINVAL; |
| 1153 | } |
| 1154 | |
| 1155 | if ((le16_to_cpu(priv->staging_rxon.channel) == channel) && |
| 1156 | (priv->band == band)) |
| 1157 | return 0; |
| 1158 | |
| 1159 | priv->staging_rxon.channel = cpu_to_le16(channel); |
| 1160 | if (band == IEEE80211_BAND_5GHZ) |
| 1161 | priv->staging_rxon.flags &= ~RXON_FLG_BAND_24G_MSK; |
| 1162 | else |
| 1163 | priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK; |
| 1164 | |
| 1165 | priv->band = band; |
| 1166 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1167 | IWL_DEBUG_INFO(priv, "Staging channel set to %d [%d]\n", channel, band); |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 1168 | |
| 1169 | return 0; |
| 1170 | } |
Ron Rindjunsky | c7de35c | 2008-04-23 17:15:05 -0700 | [diff] [blame] | 1171 | EXPORT_SYMBOL(iwl_set_rxon_channel); |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 1172 | |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 1173 | void iwl_set_flags_for_band(struct iwl_priv *priv, |
| 1174 | enum ieee80211_band band) |
| 1175 | { |
| 1176 | if (band == IEEE80211_BAND_5GHZ) { |
| 1177 | priv->staging_rxon.flags &= |
| 1178 | ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK |
| 1179 | | RXON_FLG_CCK_MSK); |
| 1180 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; |
| 1181 | } else { |
| 1182 | /* Copied from iwl_post_associate() */ |
| 1183 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) |
| 1184 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; |
| 1185 | else |
| 1186 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; |
| 1187 | |
| 1188 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC) |
| 1189 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; |
| 1190 | |
| 1191 | priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK; |
| 1192 | priv->staging_rxon.flags |= RXON_FLG_AUTO_DETECT_MSK; |
| 1193 | priv->staging_rxon.flags &= ~RXON_FLG_CCK_MSK; |
| 1194 | } |
| 1195 | } |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 1196 | |
| 1197 | /* |
| 1198 | * initialize rxon structure with default values from eeprom |
| 1199 | */ |
| 1200 | void iwl_connection_init_rx_config(struct iwl_priv *priv, int mode) |
| 1201 | { |
| 1202 | const struct iwl_channel_info *ch_info; |
| 1203 | |
| 1204 | memset(&priv->staging_rxon, 0, sizeof(priv->staging_rxon)); |
| 1205 | |
| 1206 | switch (mode) { |
| 1207 | case NL80211_IFTYPE_AP: |
| 1208 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_AP; |
| 1209 | break; |
| 1210 | |
| 1211 | case NL80211_IFTYPE_STATION: |
| 1212 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_ESS; |
| 1213 | priv->staging_rxon.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK; |
| 1214 | break; |
| 1215 | |
| 1216 | case NL80211_IFTYPE_ADHOC: |
| 1217 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_IBSS; |
| 1218 | priv->staging_rxon.flags = RXON_FLG_SHORT_PREAMBLE_MSK; |
| 1219 | priv->staging_rxon.filter_flags = RXON_FILTER_BCON_AWARE_MSK | |
| 1220 | RXON_FILTER_ACCEPT_GRP_MSK; |
| 1221 | break; |
| 1222 | |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 1223 | default: |
| 1224 | IWL_ERR(priv, "Unsupported interface type %d\n", mode); |
| 1225 | break; |
| 1226 | } |
| 1227 | |
| 1228 | #if 0 |
| 1229 | /* TODO: Figure out when short_preamble would be set and cache from |
| 1230 | * that */ |
| 1231 | if (!hw_to_local(priv->hw)->short_preamble) |
| 1232 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; |
| 1233 | else |
| 1234 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; |
| 1235 | #endif |
| 1236 | |
| 1237 | ch_info = iwl_get_channel_info(priv, priv->band, |
| 1238 | le16_to_cpu(priv->active_rxon.channel)); |
| 1239 | |
| 1240 | if (!ch_info) |
| 1241 | ch_info = &priv->channel_info[0]; |
| 1242 | |
| 1243 | /* |
| 1244 | * in some case A channels are all non IBSS |
| 1245 | * in this case force B/G channel |
| 1246 | */ |
| 1247 | if ((priv->iw_mode == NL80211_IFTYPE_ADHOC) && |
| 1248 | !(is_channel_ibss(ch_info))) |
| 1249 | ch_info = &priv->channel_info[0]; |
| 1250 | |
| 1251 | priv->staging_rxon.channel = cpu_to_le16(ch_info->channel); |
| 1252 | priv->band = ch_info->band; |
| 1253 | |
| 1254 | iwl_set_flags_for_band(priv, priv->band); |
| 1255 | |
| 1256 | priv->staging_rxon.ofdm_basic_rates = |
| 1257 | (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; |
| 1258 | priv->staging_rxon.cck_basic_rates = |
| 1259 | (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF; |
| 1260 | |
Wey-Yi Guy | a2b0f02 | 2009-05-22 11:01:49 -0700 | [diff] [blame] | 1261 | /* clear both MIX and PURE40 mode flag */ |
| 1262 | priv->staging_rxon.flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED | |
| 1263 | RXON_FLG_CHANNEL_MODE_PURE_40); |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 1264 | memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); |
| 1265 | memcpy(priv->staging_rxon.wlap_bssid_addr, priv->mac_addr, ETH_ALEN); |
| 1266 | priv->staging_rxon.ofdm_ht_single_stream_basic_rates = 0xff; |
| 1267 | priv->staging_rxon.ofdm_ht_dual_stream_basic_rates = 0xff; |
Wey-Yi Guy | 11397a6 | 2009-04-01 14:33:23 -0700 | [diff] [blame] | 1268 | priv->staging_rxon.ofdm_ht_triple_stream_basic_rates = 0xff; |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 1269 | } |
| 1270 | EXPORT_SYMBOL(iwl_connection_init_rx_config); |
| 1271 | |
Johannes Berg | 782571f | 2009-05-08 19:31:42 +0200 | [diff] [blame] | 1272 | static void iwl_set_rate(struct iwl_priv *priv) |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 1273 | { |
| 1274 | const struct ieee80211_supported_band *hw = NULL; |
| 1275 | struct ieee80211_rate *rate; |
| 1276 | int i; |
| 1277 | |
| 1278 | hw = iwl_get_hw_mode(priv, priv->band); |
| 1279 | if (!hw) { |
| 1280 | IWL_ERR(priv, "Failed to set rate: unable to get hw mode\n"); |
| 1281 | return; |
| 1282 | } |
| 1283 | |
| 1284 | priv->active_rate = 0; |
| 1285 | priv->active_rate_basic = 0; |
| 1286 | |
| 1287 | for (i = 0; i < hw->n_bitrates; i++) { |
| 1288 | rate = &(hw->bitrates[i]); |
Daniel C Halperin | 5027309 | 2009-08-28 09:44:45 -0700 | [diff] [blame] | 1289 | if (rate->hw_value < IWL_RATE_COUNT_LEGACY) |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 1290 | priv->active_rate |= (1 << rate->hw_value); |
| 1291 | } |
| 1292 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1293 | IWL_DEBUG_RATE(priv, "Set active_rate = %0x, active_rate_basic = %0x\n", |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 1294 | priv->active_rate, priv->active_rate_basic); |
| 1295 | |
| 1296 | /* |
| 1297 | * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK) |
| 1298 | * otherwise set it to the default of all CCK rates and 6, 12, 24 for |
| 1299 | * OFDM |
| 1300 | */ |
| 1301 | if (priv->active_rate_basic & IWL_CCK_BASIC_RATES_MASK) |
| 1302 | priv->staging_rxon.cck_basic_rates = |
| 1303 | ((priv->active_rate_basic & |
| 1304 | IWL_CCK_RATES_MASK) >> IWL_FIRST_CCK_RATE) & 0xF; |
| 1305 | else |
| 1306 | priv->staging_rxon.cck_basic_rates = |
| 1307 | (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF; |
| 1308 | |
| 1309 | if (priv->active_rate_basic & IWL_OFDM_BASIC_RATES_MASK) |
| 1310 | priv->staging_rxon.ofdm_basic_rates = |
| 1311 | ((priv->active_rate_basic & |
| 1312 | (IWL_OFDM_BASIC_RATES_MASK | IWL_RATE_6M_MASK)) >> |
| 1313 | IWL_FIRST_OFDM_RATE) & 0xFF; |
| 1314 | else |
| 1315 | priv->staging_rxon.ofdm_basic_rates = |
| 1316 | (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; |
| 1317 | } |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 1318 | |
| 1319 | void iwl_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb) |
| 1320 | { |
Zhu Yi | 2f30122 | 2009-10-09 17:19:45 +0800 | [diff] [blame] | 1321 | struct iwl_rx_packet *pkt = rxb_addr(rxb); |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 1322 | struct iwl_rxon_cmd *rxon = (void *)&priv->active_rxon; |
| 1323 | struct iwl_csa_notification *csa = &(pkt->u.csa_notif); |
Wey-Yi Guy | 4a56e96 | 2009-10-23 13:42:29 -0700 | [diff] [blame] | 1324 | |
Wey-Yi Guy | 0924e519 | 2009-11-06 14:52:54 -0800 | [diff] [blame] | 1325 | if (priv->switch_rxon.switch_in_progress) { |
| 1326 | if (!le32_to_cpu(csa->status) && |
| 1327 | (csa->channel == priv->switch_rxon.channel)) { |
| 1328 | rxon->channel = csa->channel; |
| 1329 | priv->staging_rxon.channel = csa->channel; |
| 1330 | IWL_DEBUG_11H(priv, "CSA notif: channel %d\n", |
| 1331 | le16_to_cpu(csa->channel)); |
| 1332 | } else |
| 1333 | IWL_ERR(priv, "CSA notif (fail) : channel %d\n", |
| 1334 | le16_to_cpu(csa->channel)); |
| 1335 | |
| 1336 | priv->switch_rxon.switch_in_progress = false; |
| 1337 | } |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 1338 | } |
| 1339 | EXPORT_SYMBOL(iwl_rx_csa); |
| 1340 | |
| 1341 | #ifdef CONFIG_IWLWIFI_DEBUG |
Wey-Yi Guy | a643565 | 2009-11-06 14:52:46 -0800 | [diff] [blame] | 1342 | void iwl_print_rx_config_cmd(struct iwl_priv *priv) |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 1343 | { |
| 1344 | struct iwl_rxon_cmd *rxon = &priv->staging_rxon; |
| 1345 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1346 | IWL_DEBUG_RADIO(priv, "RX CONFIG:\n"); |
Reinette Chatre | 3d816c7 | 2009-08-07 15:41:37 -0700 | [diff] [blame] | 1347 | iwl_print_hex_dump(priv, IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon)); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1348 | IWL_DEBUG_RADIO(priv, "u16 channel: 0x%x\n", le16_to_cpu(rxon->channel)); |
| 1349 | IWL_DEBUG_RADIO(priv, "u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags)); |
| 1350 | IWL_DEBUG_RADIO(priv, "u32 filter_flags: 0x%08x\n", |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 1351 | le32_to_cpu(rxon->filter_flags)); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1352 | IWL_DEBUG_RADIO(priv, "u8 dev_type: 0x%x\n", rxon->dev_type); |
| 1353 | IWL_DEBUG_RADIO(priv, "u8 ofdm_basic_rates: 0x%02x\n", |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 1354 | rxon->ofdm_basic_rates); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1355 | IWL_DEBUG_RADIO(priv, "u8 cck_basic_rates: 0x%02x\n", rxon->cck_basic_rates); |
| 1356 | IWL_DEBUG_RADIO(priv, "u8[6] node_addr: %pM\n", rxon->node_addr); |
| 1357 | IWL_DEBUG_RADIO(priv, "u8[6] bssid_addr: %pM\n", rxon->bssid_addr); |
| 1358 | IWL_DEBUG_RADIO(priv, "u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id)); |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 1359 | } |
Wey-Yi Guy | a643565 | 2009-11-06 14:52:46 -0800 | [diff] [blame] | 1360 | EXPORT_SYMBOL(iwl_print_rx_config_cmd); |
Reinette Chatre | 6686d17 | 2009-07-24 11:13:13 -0700 | [diff] [blame] | 1361 | #endif |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 1362 | /** |
| 1363 | * iwl_irq_handle_error - called for HW or SW error interrupt from card |
| 1364 | */ |
| 1365 | void iwl_irq_handle_error(struct iwl_priv *priv) |
| 1366 | { |
| 1367 | /* Set the FW error flag -- cleared on iwl_down */ |
| 1368 | set_bit(STATUS_FW_ERROR, &priv->status); |
| 1369 | |
| 1370 | /* Cancel currently queued command. */ |
| 1371 | clear_bit(STATUS_HCMD_ACTIVE, &priv->status); |
| 1372 | |
Wey-Yi Guy | 3a3ff72 | 2009-11-20 12:05:05 -0800 | [diff] [blame] | 1373 | priv->cfg->ops->lib->dump_nic_error_log(priv); |
Wey-Yi Guy | 696bdee | 2009-12-10 14:37:25 -0800 | [diff] [blame] | 1374 | if (priv->cfg->ops->lib->dump_csr) |
| 1375 | priv->cfg->ops->lib->dump_csr(priv); |
Wey-Yi Guy | 1b3eb82 | 2010-01-15 13:43:39 -0800 | [diff] [blame] | 1376 | if (priv->cfg->ops->lib->dump_fh) |
| 1377 | priv->cfg->ops->lib->dump_fh(priv, NULL, false); |
Wey-Yi Guy | b03d7d0 | 2009-12-14 14:12:20 -0800 | [diff] [blame] | 1378 | priv->cfg->ops->lib->dump_nic_event_log(priv, false, NULL, false); |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 1379 | #ifdef CONFIG_IWLWIFI_DEBUG |
Wey-Yi Guy | c341ddb | 2009-11-20 12:05:07 -0800 | [diff] [blame] | 1380 | if (iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS) |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 1381 | iwl_print_rx_config_cmd(priv); |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 1382 | #endif |
| 1383 | |
| 1384 | wake_up_interruptible(&priv->wait_command_queue); |
| 1385 | |
| 1386 | /* Keep the restart process from trying to send host |
| 1387 | * commands by clearing the INIT status bit */ |
| 1388 | clear_bit(STATUS_READY, &priv->status); |
| 1389 | |
| 1390 | if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1391 | IWL_DEBUG(priv, IWL_DL_FW_ERRORS, |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 1392 | "Restarting adapter due to uCode error.\n"); |
| 1393 | |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 1394 | if (priv->cfg->mod_params->restart_fw) |
| 1395 | queue_work(priv->workqueue, &priv->restart); |
| 1396 | } |
| 1397 | } |
| 1398 | EXPORT_SYMBOL(iwl_irq_handle_error); |
| 1399 | |
Abhijeet Kolekar | d68b603 | 2009-10-02 13:44:04 -0700 | [diff] [blame] | 1400 | int iwl_apm_stop_master(struct iwl_priv *priv) |
| 1401 | { |
Ben Cahill | 5220af0 | 2009-10-30 14:36:05 -0700 | [diff] [blame] | 1402 | int ret = 0; |
Abhijeet Kolekar | d68b603 | 2009-10-02 13:44:04 -0700 | [diff] [blame] | 1403 | |
Ben Cahill | 5220af0 | 2009-10-30 14:36:05 -0700 | [diff] [blame] | 1404 | /* stop device's busmaster DMA activity */ |
Abhijeet Kolekar | d68b603 | 2009-10-02 13:44:04 -0700 | [diff] [blame] | 1405 | iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_STOP_MASTER); |
| 1406 | |
Ben Cahill | 5220af0 | 2009-10-30 14:36:05 -0700 | [diff] [blame] | 1407 | ret = iwl_poll_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_MASTER_DISABLED, |
Abhijeet Kolekar | d68b603 | 2009-10-02 13:44:04 -0700 | [diff] [blame] | 1408 | CSR_RESET_REG_FLAG_MASTER_DISABLED, 100); |
Ben Cahill | 5220af0 | 2009-10-30 14:36:05 -0700 | [diff] [blame] | 1409 | if (ret) |
| 1410 | IWL_WARN(priv, "Master Disable Timed Out, 100 usec\n"); |
Abhijeet Kolekar | d68b603 | 2009-10-02 13:44:04 -0700 | [diff] [blame] | 1411 | |
Abhijeet Kolekar | d68b603 | 2009-10-02 13:44:04 -0700 | [diff] [blame] | 1412 | IWL_DEBUG_INFO(priv, "stop master\n"); |
| 1413 | |
Ben Cahill | 5220af0 | 2009-10-30 14:36:05 -0700 | [diff] [blame] | 1414 | return ret; |
Abhijeet Kolekar | d68b603 | 2009-10-02 13:44:04 -0700 | [diff] [blame] | 1415 | } |
| 1416 | EXPORT_SYMBOL(iwl_apm_stop_master); |
| 1417 | |
| 1418 | void iwl_apm_stop(struct iwl_priv *priv) |
| 1419 | { |
Ben Cahill | fadb358 | 2009-10-23 13:42:21 -0700 | [diff] [blame] | 1420 | IWL_DEBUG_INFO(priv, "Stop card, put in low power state\n"); |
| 1421 | |
Ben Cahill | 5220af0 | 2009-10-30 14:36:05 -0700 | [diff] [blame] | 1422 | /* Stop device's DMA activity */ |
Abhijeet Kolekar | d68b603 | 2009-10-02 13:44:04 -0700 | [diff] [blame] | 1423 | iwl_apm_stop_master(priv); |
| 1424 | |
Ben Cahill | 5220af0 | 2009-10-30 14:36:05 -0700 | [diff] [blame] | 1425 | /* Reset the entire device */ |
Abhijeet Kolekar | d68b603 | 2009-10-02 13:44:04 -0700 | [diff] [blame] | 1426 | iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET); |
| 1427 | |
| 1428 | udelay(10); |
Ben Cahill | 5220af0 | 2009-10-30 14:36:05 -0700 | [diff] [blame] | 1429 | |
| 1430 | /* |
| 1431 | * Clear "initialization complete" bit to move adapter from |
| 1432 | * D0A* (powered-up Active) --> D0U* (Uninitialized) state. |
| 1433 | */ |
Abhijeet Kolekar | d68b603 | 2009-10-02 13:44:04 -0700 | [diff] [blame] | 1434 | iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE); |
Abhijeet Kolekar | d68b603 | 2009-10-02 13:44:04 -0700 | [diff] [blame] | 1435 | } |
| 1436 | EXPORT_SYMBOL(iwl_apm_stop); |
| 1437 | |
Ben Cahill | fadb358 | 2009-10-23 13:42:21 -0700 | [diff] [blame] | 1438 | |
| 1439 | /* |
| 1440 | * Start up NIC's basic functionality after it has been reset |
| 1441 | * (e.g. after platform boot, or shutdown via iwl_apm_stop()) |
| 1442 | * NOTE: This does not load uCode nor start the embedded processor |
| 1443 | */ |
| 1444 | int iwl_apm_init(struct iwl_priv *priv) |
| 1445 | { |
| 1446 | int ret = 0; |
| 1447 | u16 lctl; |
| 1448 | |
| 1449 | IWL_DEBUG_INFO(priv, "Init card's basic functions\n"); |
| 1450 | |
| 1451 | /* |
| 1452 | * Use "set_bit" below rather than "write", to preserve any hardware |
| 1453 | * bits already set by default after reset. |
| 1454 | */ |
| 1455 | |
| 1456 | /* Disable L0S exit timer (platform NMI Work/Around) */ |
| 1457 | iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS, |
| 1458 | CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER); |
| 1459 | |
| 1460 | /* |
| 1461 | * Disable L0s without affecting L1; |
| 1462 | * don't wait for ICH L0s (ICH bug W/A) |
| 1463 | */ |
| 1464 | iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS, |
| 1465 | CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX); |
| 1466 | |
| 1467 | /* Set FH wait threshold to maximum (HW error during stress W/A) */ |
| 1468 | iwl_set_bit(priv, CSR_DBG_HPET_MEM_REG, CSR_DBG_HPET_MEM_REG_VAL); |
| 1469 | |
| 1470 | /* |
| 1471 | * Enable HAP INTA (interrupt from management bus) to |
| 1472 | * wake device's PCI Express link L1a -> L0s |
| 1473 | * NOTE: This is no-op for 3945 (non-existant bit) |
| 1474 | */ |
| 1475 | iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG, |
| 1476 | CSR_HW_IF_CONFIG_REG_BIT_HAP_WAKE_L1A); |
| 1477 | |
| 1478 | /* |
Ben Cahill | a6c5c73 | 2009-10-30 14:36:07 -0700 | [diff] [blame] | 1479 | * HW bug W/A for instability in PCIe bus L0->L0S->L1 transition. |
| 1480 | * Check if BIOS (or OS) enabled L1-ASPM on this device. |
| 1481 | * If so (likely), disable L0S, so device moves directly L0->L1; |
| 1482 | * costs negligible amount of power savings. |
| 1483 | * If not (unlikely), enable L0S, so there is at least some |
| 1484 | * power savings, even without L1. |
Ben Cahill | fadb358 | 2009-10-23 13:42:21 -0700 | [diff] [blame] | 1485 | */ |
| 1486 | if (priv->cfg->set_l0s) { |
| 1487 | lctl = iwl_pcie_link_ctl(priv); |
| 1488 | if ((lctl & PCI_CFG_LINK_CTRL_VAL_L1_EN) == |
| 1489 | PCI_CFG_LINK_CTRL_VAL_L1_EN) { |
| 1490 | /* L1-ASPM enabled; disable(!) L0S */ |
| 1491 | iwl_set_bit(priv, CSR_GIO_REG, |
| 1492 | CSR_GIO_REG_VAL_L0S_ENABLED); |
| 1493 | IWL_DEBUG_POWER(priv, "L1 Enabled; Disabling L0S\n"); |
| 1494 | } else { |
| 1495 | /* L1-ASPM disabled; enable(!) L0S */ |
| 1496 | iwl_clear_bit(priv, CSR_GIO_REG, |
| 1497 | CSR_GIO_REG_VAL_L0S_ENABLED); |
| 1498 | IWL_DEBUG_POWER(priv, "L1 Disabled; Enabling L0S\n"); |
| 1499 | } |
| 1500 | } |
| 1501 | |
| 1502 | /* Configure analog phase-lock-loop before activating to D0A */ |
| 1503 | if (priv->cfg->pll_cfg_val) |
| 1504 | iwl_set_bit(priv, CSR_ANA_PLL_CFG, priv->cfg->pll_cfg_val); |
| 1505 | |
| 1506 | /* |
| 1507 | * Set "initialization complete" bit to move adapter from |
| 1508 | * D0U* --> D0A* (powered-up active) state. |
| 1509 | */ |
| 1510 | iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE); |
| 1511 | |
| 1512 | /* |
| 1513 | * Wait for clock stabilization; once stabilized, access to |
| 1514 | * device-internal resources is supported, e.g. iwl_write_prph() |
| 1515 | * and accesses to uCode SRAM. |
| 1516 | */ |
| 1517 | ret = iwl_poll_bit(priv, CSR_GP_CNTRL, |
| 1518 | CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, |
| 1519 | CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000); |
| 1520 | if (ret < 0) { |
| 1521 | IWL_DEBUG_INFO(priv, "Failed to init the card\n"); |
| 1522 | goto out; |
| 1523 | } |
| 1524 | |
| 1525 | /* |
| 1526 | * Enable DMA and BSM (if used) clocks, wait for them to stabilize. |
| 1527 | * BSM (Boostrap State Machine) is only in 3945 and 4965; |
| 1528 | * later devices (i.e. 5000 and later) have non-volatile SRAM, |
| 1529 | * and don't need BSM to restore data after power-saving sleep. |
| 1530 | * |
| 1531 | * Write to "CLK_EN_REG"; "1" bits enable clocks, while "0" bits |
| 1532 | * do not disable clocks. This preserves any hardware bits already |
| 1533 | * set by default in "CLK_CTRL_REG" after reset. |
| 1534 | */ |
| 1535 | if (priv->cfg->use_bsm) |
| 1536 | iwl_write_prph(priv, APMG_CLK_EN_REG, |
| 1537 | APMG_CLK_VAL_DMA_CLK_RQT | APMG_CLK_VAL_BSM_CLK_RQT); |
| 1538 | else |
| 1539 | iwl_write_prph(priv, APMG_CLK_EN_REG, |
| 1540 | APMG_CLK_VAL_DMA_CLK_RQT); |
| 1541 | udelay(20); |
| 1542 | |
| 1543 | /* Disable L1-Active */ |
| 1544 | iwl_set_bits_prph(priv, APMG_PCIDEV_STT_REG, |
| 1545 | APMG_PCIDEV_STT_VAL_L1_ACT_DIS); |
| 1546 | |
| 1547 | out: |
| 1548 | return ret; |
| 1549 | } |
| 1550 | EXPORT_SYMBOL(iwl_apm_init); |
| 1551 | |
| 1552 | |
| 1553 | |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 1554 | void iwl_configure_filter(struct ieee80211_hw *hw, |
| 1555 | unsigned int changed_flags, |
| 1556 | unsigned int *total_flags, |
Johannes Berg | 3ac64be | 2009-08-17 16:16:53 +0200 | [diff] [blame] | 1557 | u64 multicast) |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 1558 | { |
| 1559 | struct iwl_priv *priv = hw->priv; |
| 1560 | __le32 *filter_flags = &priv->staging_rxon.filter_flags; |
| 1561 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1562 | IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n", |
Samuel Ortiz | 8ccde88 | 2009-01-27 14:27:52 -0800 | [diff] [blame] | 1563 | changed_flags, *total_flags); |
| 1564 | |
| 1565 | if (changed_flags & (FIF_OTHER_BSS | FIF_PROMISC_IN_BSS)) { |
| 1566 | if (*total_flags & (FIF_OTHER_BSS | FIF_PROMISC_IN_BSS)) |
| 1567 | *filter_flags |= RXON_FILTER_PROMISC_MSK; |
| 1568 | else |
| 1569 | *filter_flags &= ~RXON_FILTER_PROMISC_MSK; |
| 1570 | } |
| 1571 | if (changed_flags & FIF_ALLMULTI) { |
| 1572 | if (*total_flags & FIF_ALLMULTI) |
| 1573 | *filter_flags |= RXON_FILTER_ACCEPT_GRP_MSK; |
| 1574 | else |
| 1575 | *filter_flags &= ~RXON_FILTER_ACCEPT_GRP_MSK; |
| 1576 | } |
| 1577 | if (changed_flags & FIF_CONTROL) { |
| 1578 | if (*total_flags & FIF_CONTROL) |
| 1579 | *filter_flags |= RXON_FILTER_CTL2HOST_MSK; |
| 1580 | else |
| 1581 | *filter_flags &= ~RXON_FILTER_CTL2HOST_MSK; |
| 1582 | } |
| 1583 | if (changed_flags & FIF_BCN_PRBRESP_PROMISC) { |
| 1584 | if (*total_flags & FIF_BCN_PRBRESP_PROMISC) |
| 1585 | *filter_flags |= RXON_FILTER_BCON_AWARE_MSK; |
| 1586 | else |
| 1587 | *filter_flags &= ~RXON_FILTER_BCON_AWARE_MSK; |
| 1588 | } |
| 1589 | |
| 1590 | /* We avoid iwl_commit_rxon here to commit the new filter flags |
| 1591 | * since mac80211 will call ieee80211_hw_config immediately. |
| 1592 | * (mc_list is not supported at this time). Otherwise, we need to |
| 1593 | * queue a background iwl_commit_rxon work. |
| 1594 | */ |
| 1595 | |
| 1596 | *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS | |
| 1597 | FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL; |
| 1598 | } |
| 1599 | EXPORT_SYMBOL(iwl_configure_filter); |
| 1600 | |
Ron Rindjunsky | da154e30 | 2008-06-30 17:23:20 +0800 | [diff] [blame] | 1601 | int iwl_set_hw_params(struct iwl_priv *priv) |
| 1602 | { |
Ron Rindjunsky | da154e30 | 2008-06-30 17:23:20 +0800 | [diff] [blame] | 1603 | priv->hw_params.max_rxq_size = RX_QUEUE_SIZE; |
| 1604 | priv->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG; |
| 1605 | if (priv->cfg->mod_params->amsdu_size_8K) |
Zhu Yi | 2f30122 | 2009-10-09 17:19:45 +0800 | [diff] [blame] | 1606 | priv->hw_params.rx_page_order = get_order(IWL_RX_BUF_SIZE_8K); |
Ron Rindjunsky | da154e30 | 2008-06-30 17:23:20 +0800 | [diff] [blame] | 1607 | else |
Zhu Yi | 2f30122 | 2009-10-09 17:19:45 +0800 | [diff] [blame] | 1608 | priv->hw_params.rx_page_order = get_order(IWL_RX_BUF_SIZE_4K); |
Ron Rindjunsky | da154e30 | 2008-06-30 17:23:20 +0800 | [diff] [blame] | 1609 | |
Tomas Winkler | 2c2f3b3 | 2009-06-19 13:52:45 -0700 | [diff] [blame] | 1610 | priv->hw_params.max_beacon_itrvl = IWL_MAX_UCODE_BEACON_INTERVAL; |
| 1611 | |
Ron Rindjunsky | 4977929 | 2008-06-30 17:23:21 +0800 | [diff] [blame] | 1612 | if (priv->cfg->mod_params->disable_11n) |
| 1613 | priv->cfg->sku &= ~IWL_SKU_N; |
| 1614 | |
Ron Rindjunsky | da154e30 | 2008-06-30 17:23:20 +0800 | [diff] [blame] | 1615 | /* Device-specific setup */ |
| 1616 | return priv->cfg->ops->lib->set_hw_params(priv); |
| 1617 | } |
| 1618 | EXPORT_SYMBOL(iwl_set_hw_params); |
Tomas Winkler | 6ba8795 | 2008-05-15 13:54:17 +0800 | [diff] [blame] | 1619 | |
Tomas Winkler | 630fe9b | 2008-06-12 09:47:08 +0800 | [diff] [blame] | 1620 | int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force) |
| 1621 | { |
| 1622 | int ret = 0; |
Wey-Yi Guy | 5eadd94 | 2009-08-21 13:34:17 -0700 | [diff] [blame] | 1623 | s8 prev_tx_power = priv->tx_power_user_lmt; |
| 1624 | |
Tomas Winkler | 630fe9b | 2008-06-12 09:47:08 +0800 | [diff] [blame] | 1625 | if (tx_power < IWL_TX_POWER_TARGET_POWER_MIN) { |
Wu, Fengguang | daf518d | 2009-02-13 11:51:17 -0800 | [diff] [blame] | 1626 | IWL_WARN(priv, "Requested user TXPOWER %d below lower limit %d.\n", |
| 1627 | tx_power, |
| 1628 | IWL_TX_POWER_TARGET_POWER_MIN); |
Tomas Winkler | 630fe9b | 2008-06-12 09:47:08 +0800 | [diff] [blame] | 1629 | return -EINVAL; |
| 1630 | } |
| 1631 | |
Wey-Yi Guy | dc1b097 | 2009-08-21 13:34:16 -0700 | [diff] [blame] | 1632 | if (tx_power > priv->tx_power_device_lmt) { |
Wey-Yi Guy | 08f2d58 | 2009-08-21 13:34:15 -0700 | [diff] [blame] | 1633 | IWL_WARN(priv, |
| 1634 | "Requested user TXPOWER %d above upper limit %d.\n", |
Wey-Yi Guy | dc1b097 | 2009-08-21 13:34:16 -0700 | [diff] [blame] | 1635 | tx_power, priv->tx_power_device_lmt); |
Tomas Winkler | 630fe9b | 2008-06-12 09:47:08 +0800 | [diff] [blame] | 1636 | return -EINVAL; |
| 1637 | } |
| 1638 | |
| 1639 | if (priv->tx_power_user_lmt != tx_power) |
| 1640 | force = true; |
| 1641 | |
Mohamed Abbas | 019fb97 | 2009-03-17 21:59:18 -0700 | [diff] [blame] | 1642 | /* if nic is not up don't send command */ |
Wey-Yi Guy | 5eadd94 | 2009-08-21 13:34:17 -0700 | [diff] [blame] | 1643 | if (iwl_is_ready_rf(priv)) { |
| 1644 | priv->tx_power_user_lmt = tx_power; |
| 1645 | if (force && priv->cfg->ops->lib->send_tx_power) |
| 1646 | ret = priv->cfg->ops->lib->send_tx_power(priv); |
| 1647 | else if (!priv->cfg->ops->lib->send_tx_power) |
| 1648 | ret = -EOPNOTSUPP; |
| 1649 | /* |
| 1650 | * if fail to set tx_power, restore the orig. tx power |
| 1651 | */ |
| 1652 | if (ret) |
| 1653 | priv->tx_power_user_lmt = prev_tx_power; |
| 1654 | } |
Mohamed Abbas | 019fb97 | 2009-03-17 21:59:18 -0700 | [diff] [blame] | 1655 | |
Wey-Yi Guy | 5eadd94 | 2009-08-21 13:34:17 -0700 | [diff] [blame] | 1656 | /* |
| 1657 | * Even this is an async host command, the command |
| 1658 | * will always report success from uCode |
| 1659 | * So once driver can placing the command into the queue |
| 1660 | * successfully, driver can use priv->tx_power_user_lmt |
| 1661 | * to reflect the current tx power |
| 1662 | */ |
Tomas Winkler | 630fe9b | 2008-06-12 09:47:08 +0800 | [diff] [blame] | 1663 | return ret; |
| 1664 | } |
| 1665 | EXPORT_SYMBOL(iwl_set_tx_power); |
| 1666 | |
Mohamed Abbas | ef850d7 | 2009-05-22 11:01:50 -0700 | [diff] [blame] | 1667 | #define ICT_COUNT (PAGE_SIZE/sizeof(u32)) |
| 1668 | |
| 1669 | /* Free dram table */ |
| 1670 | void iwl_free_isr_ict(struct iwl_priv *priv) |
| 1671 | { |
| 1672 | if (priv->ict_tbl_vir) { |
Stanislaw Gruszka | f36d04a | 2010-02-10 05:07:45 -0800 | [diff] [blame] | 1673 | dma_free_coherent(&priv->pci_dev->dev, |
| 1674 | (sizeof(u32) * ICT_COUNT) + PAGE_SIZE, |
| 1675 | priv->ict_tbl_vir, priv->ict_tbl_dma); |
Mohamed Abbas | ef850d7 | 2009-05-22 11:01:50 -0700 | [diff] [blame] | 1676 | priv->ict_tbl_vir = NULL; |
| 1677 | } |
| 1678 | } |
| 1679 | EXPORT_SYMBOL(iwl_free_isr_ict); |
| 1680 | |
| 1681 | |
| 1682 | /* allocate dram shared table it is a PAGE_SIZE aligned |
| 1683 | * also reset all data related to ICT table interrupt. |
| 1684 | */ |
| 1685 | int iwl_alloc_isr_ict(struct iwl_priv *priv) |
| 1686 | { |
| 1687 | |
| 1688 | if (priv->cfg->use_isr_legacy) |
| 1689 | return 0; |
| 1690 | /* allocate shrared data table */ |
Stanislaw Gruszka | f36d04a | 2010-02-10 05:07:45 -0800 | [diff] [blame] | 1691 | priv->ict_tbl_vir = dma_alloc_coherent(&priv->pci_dev->dev, |
| 1692 | (sizeof(u32) * ICT_COUNT) + PAGE_SIZE, |
| 1693 | &priv->ict_tbl_dma, GFP_KERNEL); |
Mohamed Abbas | ef850d7 | 2009-05-22 11:01:50 -0700 | [diff] [blame] | 1694 | if (!priv->ict_tbl_vir) |
| 1695 | return -ENOMEM; |
| 1696 | |
| 1697 | /* align table to PAGE_SIZE boundry */ |
| 1698 | priv->aligned_ict_tbl_dma = ALIGN(priv->ict_tbl_dma, PAGE_SIZE); |
| 1699 | |
| 1700 | IWL_DEBUG_ISR(priv, "ict dma addr %Lx dma aligned %Lx diff %d\n", |
| 1701 | (unsigned long long)priv->ict_tbl_dma, |
| 1702 | (unsigned long long)priv->aligned_ict_tbl_dma, |
| 1703 | (int)(priv->aligned_ict_tbl_dma - priv->ict_tbl_dma)); |
| 1704 | |
| 1705 | priv->ict_tbl = priv->ict_tbl_vir + |
| 1706 | (priv->aligned_ict_tbl_dma - priv->ict_tbl_dma); |
| 1707 | |
| 1708 | IWL_DEBUG_ISR(priv, "ict vir addr %p vir aligned %p diff %d\n", |
| 1709 | priv->ict_tbl, priv->ict_tbl_vir, |
| 1710 | (int)(priv->aligned_ict_tbl_dma - priv->ict_tbl_dma)); |
| 1711 | |
| 1712 | /* reset table and index to all 0 */ |
| 1713 | memset(priv->ict_tbl_vir,0, (sizeof(u32) * ICT_COUNT) + PAGE_SIZE); |
| 1714 | priv->ict_index = 0; |
| 1715 | |
Mohamed Abbas | 40cefda | 2009-05-22 11:01:52 -0700 | [diff] [blame] | 1716 | /* add periodic RX interrupt */ |
| 1717 | priv->inta_mask |= CSR_INT_BIT_RX_PERIODIC; |
Mohamed Abbas | ef850d7 | 2009-05-22 11:01:50 -0700 | [diff] [blame] | 1718 | return 0; |
| 1719 | } |
| 1720 | EXPORT_SYMBOL(iwl_alloc_isr_ict); |
| 1721 | |
| 1722 | /* Device is going up inform it about using ICT interrupt table, |
| 1723 | * also we need to tell the driver to start using ICT interrupt. |
| 1724 | */ |
| 1725 | int iwl_reset_ict(struct iwl_priv *priv) |
| 1726 | { |
| 1727 | u32 val; |
| 1728 | unsigned long flags; |
| 1729 | |
| 1730 | if (!priv->ict_tbl_vir) |
| 1731 | return 0; |
| 1732 | |
| 1733 | spin_lock_irqsave(&priv->lock, flags); |
| 1734 | iwl_disable_interrupts(priv); |
| 1735 | |
Johannes Berg | 1303dcf | 2009-08-26 22:15:13 +0200 | [diff] [blame] | 1736 | memset(&priv->ict_tbl[0], 0, sizeof(u32) * ICT_COUNT); |
Mohamed Abbas | ef850d7 | 2009-05-22 11:01:50 -0700 | [diff] [blame] | 1737 | |
| 1738 | val = priv->aligned_ict_tbl_dma >> PAGE_SHIFT; |
| 1739 | |
| 1740 | val |= CSR_DRAM_INT_TBL_ENABLE; |
| 1741 | val |= CSR_DRAM_INIT_TBL_WRAP_CHECK; |
| 1742 | |
| 1743 | IWL_DEBUG_ISR(priv, "CSR_DRAM_INT_TBL_REG =0x%X " |
| 1744 | "aligned dma address %Lx\n", |
| 1745 | val, (unsigned long long)priv->aligned_ict_tbl_dma); |
| 1746 | |
| 1747 | iwl_write32(priv, CSR_DRAM_INT_TBL_REG, val); |
| 1748 | priv->use_ict = true; |
| 1749 | priv->ict_index = 0; |
Mohamed Abbas | 40cefda | 2009-05-22 11:01:52 -0700 | [diff] [blame] | 1750 | iwl_write32(priv, CSR_INT, priv->inta_mask); |
Mohamed Abbas | ef850d7 | 2009-05-22 11:01:50 -0700 | [diff] [blame] | 1751 | iwl_enable_interrupts(priv); |
| 1752 | spin_unlock_irqrestore(&priv->lock, flags); |
| 1753 | |
| 1754 | return 0; |
| 1755 | } |
| 1756 | EXPORT_SYMBOL(iwl_reset_ict); |
| 1757 | |
| 1758 | /* Device is going down disable ict interrupt usage */ |
| 1759 | void iwl_disable_ict(struct iwl_priv *priv) |
| 1760 | { |
| 1761 | unsigned long flags; |
| 1762 | |
| 1763 | spin_lock_irqsave(&priv->lock, flags); |
| 1764 | priv->use_ict = false; |
| 1765 | spin_unlock_irqrestore(&priv->lock, flags); |
| 1766 | } |
| 1767 | EXPORT_SYMBOL(iwl_disable_ict); |
| 1768 | |
| 1769 | /* interrupt handler using ict table, with this interrupt driver will |
| 1770 | * stop using INTA register to get device's interrupt, reading this register |
| 1771 | * is expensive, device will write interrupts in ICT dram table, increment |
| 1772 | * index then will fire interrupt to driver, driver will OR all ICT table |
| 1773 | * entries from current index up to table entry with 0 value. the result is |
| 1774 | * the interrupt we need to service, driver will set the entries back to 0 and |
| 1775 | * set index. |
| 1776 | */ |
| 1777 | irqreturn_t iwl_isr_ict(int irq, void *data) |
| 1778 | { |
| 1779 | struct iwl_priv *priv = data; |
| 1780 | u32 inta, inta_mask; |
| 1781 | u32 val = 0; |
| 1782 | |
| 1783 | if (!priv) |
| 1784 | return IRQ_NONE; |
| 1785 | |
| 1786 | /* dram interrupt table not set yet, |
| 1787 | * use legacy interrupt. |
| 1788 | */ |
| 1789 | if (!priv->use_ict) |
| 1790 | return iwl_isr(irq, data); |
| 1791 | |
| 1792 | spin_lock(&priv->lock); |
| 1793 | |
| 1794 | /* Disable (but don't clear!) interrupts here to avoid |
| 1795 | * back-to-back ISRs and sporadic interrupts from our NIC. |
| 1796 | * If we have something to service, the tasklet will re-enable ints. |
| 1797 | * If we *don't* have something, we'll re-enable before leaving here. |
| 1798 | */ |
| 1799 | inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */ |
| 1800 | iwl_write32(priv, CSR_INT_MASK, 0x00000000); |
| 1801 | |
| 1802 | |
| 1803 | /* Ignore interrupt if there's nothing in NIC to service. |
| 1804 | * This may be due to IRQ shared with another device, |
| 1805 | * or due to sporadic interrupts thrown from our NIC. */ |
| 1806 | if (!priv->ict_tbl[priv->ict_index]) { |
| 1807 | IWL_DEBUG_ISR(priv, "Ignore interrupt, inta == 0\n"); |
| 1808 | goto none; |
| 1809 | } |
| 1810 | |
| 1811 | /* read all entries that not 0 start with ict_index */ |
| 1812 | while (priv->ict_tbl[priv->ict_index]) { |
| 1813 | |
Johannes Berg | 1303dcf | 2009-08-26 22:15:13 +0200 | [diff] [blame] | 1814 | val |= le32_to_cpu(priv->ict_tbl[priv->ict_index]); |
Mohamed Abbas | ef850d7 | 2009-05-22 11:01:50 -0700 | [diff] [blame] | 1815 | IWL_DEBUG_ISR(priv, "ICT index %d value 0x%08X\n", |
Johannes Berg | 1303dcf | 2009-08-26 22:15:13 +0200 | [diff] [blame] | 1816 | priv->ict_index, |
| 1817 | le32_to_cpu(priv->ict_tbl[priv->ict_index])); |
Mohamed Abbas | ef850d7 | 2009-05-22 11:01:50 -0700 | [diff] [blame] | 1818 | priv->ict_tbl[priv->ict_index] = 0; |
| 1819 | priv->ict_index = iwl_queue_inc_wrap(priv->ict_index, |
Johannes Berg | 1303dcf | 2009-08-26 22:15:13 +0200 | [diff] [blame] | 1820 | ICT_COUNT); |
Mohamed Abbas | ef850d7 | 2009-05-22 11:01:50 -0700 | [diff] [blame] | 1821 | |
| 1822 | } |
| 1823 | |
| 1824 | /* We should not get this value, just ignore it. */ |
| 1825 | if (val == 0xffffffff) |
| 1826 | val = 0; |
| 1827 | |
Wey-Yi Guy | 2a11df6 | 2010-01-15 13:43:38 -0800 | [diff] [blame] | 1828 | /* |
| 1829 | * this is a w/a for a h/w bug. the h/w bug may cause the Rx bit |
| 1830 | * (bit 15 before shifting it to 31) to clear when using interrupt |
| 1831 | * coalescing. fortunately, bits 18 and 19 stay set when this happens |
| 1832 | * so we use them to decide on the real state of the Rx bit. |
| 1833 | * In order words, bit 15 is set if bit 18 or bit 19 are set. |
| 1834 | */ |
| 1835 | if (val & 0xC0000) |
| 1836 | val |= 0x8000; |
| 1837 | |
Mohamed Abbas | ef850d7 | 2009-05-22 11:01:50 -0700 | [diff] [blame] | 1838 | inta = (0xff & val) | ((0xff00 & val) << 16); |
| 1839 | IWL_DEBUG_ISR(priv, "ISR inta 0x%08x, enabled 0x%08x ict 0x%08x\n", |
| 1840 | inta, inta_mask, val); |
| 1841 | |
Mohamed Abbas | 40cefda | 2009-05-22 11:01:52 -0700 | [diff] [blame] | 1842 | inta &= priv->inta_mask; |
Mohamed Abbas | ef850d7 | 2009-05-22 11:01:50 -0700 | [diff] [blame] | 1843 | priv->inta |= inta; |
| 1844 | |
| 1845 | /* iwl_irq_tasklet() will service interrupts and re-enable them */ |
| 1846 | if (likely(inta)) |
| 1847 | tasklet_schedule(&priv->irq_tasklet); |
| 1848 | else if (test_bit(STATUS_INT_ENABLED, &priv->status) && !priv->inta) { |
| 1849 | /* Allow interrupt if was disabled by this handler and |
| 1850 | * no tasklet was schedules, We should not enable interrupt, |
| 1851 | * tasklet will enable it. |
| 1852 | */ |
| 1853 | iwl_enable_interrupts(priv); |
| 1854 | } |
| 1855 | |
| 1856 | spin_unlock(&priv->lock); |
| 1857 | return IRQ_HANDLED; |
| 1858 | |
| 1859 | none: |
| 1860 | /* re-enable interrupts here since we don't have anything to service. |
| 1861 | * only Re-enable if disabled by irq. |
| 1862 | */ |
| 1863 | if (test_bit(STATUS_INT_ENABLED, &priv->status) && !priv->inta) |
| 1864 | iwl_enable_interrupts(priv); |
| 1865 | |
| 1866 | spin_unlock(&priv->lock); |
| 1867 | return IRQ_NONE; |
| 1868 | } |
| 1869 | EXPORT_SYMBOL(iwl_isr_ict); |
| 1870 | |
| 1871 | |
| 1872 | static irqreturn_t iwl_isr(int irq, void *data) |
| 1873 | { |
| 1874 | struct iwl_priv *priv = data; |
| 1875 | u32 inta, inta_mask; |
Rami Rosen | d651ae3 | 2009-05-24 20:43:50 +0300 | [diff] [blame] | 1876 | #ifdef CONFIG_IWLWIFI_DEBUG |
Mohamed Abbas | ef850d7 | 2009-05-22 11:01:50 -0700 | [diff] [blame] | 1877 | u32 inta_fh; |
Rami Rosen | d651ae3 | 2009-05-24 20:43:50 +0300 | [diff] [blame] | 1878 | #endif |
Mohamed Abbas | ef850d7 | 2009-05-22 11:01:50 -0700 | [diff] [blame] | 1879 | if (!priv) |
| 1880 | return IRQ_NONE; |
| 1881 | |
| 1882 | spin_lock(&priv->lock); |
| 1883 | |
| 1884 | /* Disable (but don't clear!) interrupts here to avoid |
| 1885 | * back-to-back ISRs and sporadic interrupts from our NIC. |
| 1886 | * If we have something to service, the tasklet will re-enable ints. |
| 1887 | * If we *don't* have something, we'll re-enable before leaving here. */ |
| 1888 | inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */ |
| 1889 | iwl_write32(priv, CSR_INT_MASK, 0x00000000); |
| 1890 | |
| 1891 | /* Discover which interrupts are active/pending */ |
| 1892 | inta = iwl_read32(priv, CSR_INT); |
| 1893 | |
| 1894 | /* Ignore interrupt if there's nothing in NIC to service. |
| 1895 | * This may be due to IRQ shared with another device, |
| 1896 | * or due to sporadic interrupts thrown from our NIC. */ |
| 1897 | if (!inta) { |
| 1898 | IWL_DEBUG_ISR(priv, "Ignore interrupt, inta == 0\n"); |
| 1899 | goto none; |
| 1900 | } |
| 1901 | |
| 1902 | if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) { |
| 1903 | /* Hardware disappeared. It might have already raised |
| 1904 | * an interrupt */ |
| 1905 | IWL_WARN(priv, "HARDWARE GONE?? INTA == 0x%08x\n", inta); |
| 1906 | goto unplugged; |
| 1907 | } |
| 1908 | |
| 1909 | #ifdef CONFIG_IWLWIFI_DEBUG |
Reinette Chatre | 3d816c7 | 2009-08-07 15:41:37 -0700 | [diff] [blame] | 1910 | if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) { |
Mohamed Abbas | ef850d7 | 2009-05-22 11:01:50 -0700 | [diff] [blame] | 1911 | inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); |
| 1912 | IWL_DEBUG_ISR(priv, "ISR inta 0x%08x, enabled 0x%08x, " |
| 1913 | "fh 0x%08x\n", inta, inta_mask, inta_fh); |
| 1914 | } |
| 1915 | #endif |
| 1916 | |
| 1917 | priv->inta |= inta; |
| 1918 | /* iwl_irq_tasklet() will service interrupts and re-enable them */ |
| 1919 | if (likely(inta)) |
| 1920 | tasklet_schedule(&priv->irq_tasklet); |
| 1921 | else if (test_bit(STATUS_INT_ENABLED, &priv->status) && !priv->inta) |
| 1922 | iwl_enable_interrupts(priv); |
| 1923 | |
| 1924 | unplugged: |
| 1925 | spin_unlock(&priv->lock); |
| 1926 | return IRQ_HANDLED; |
| 1927 | |
| 1928 | none: |
| 1929 | /* re-enable interrupts here since we don't have anything to service. */ |
| 1930 | /* only Re-enable if diabled by irq and no schedules tasklet. */ |
| 1931 | if (test_bit(STATUS_INT_ENABLED, &priv->status) && !priv->inta) |
| 1932 | iwl_enable_interrupts(priv); |
| 1933 | |
| 1934 | spin_unlock(&priv->lock); |
| 1935 | return IRQ_NONE; |
| 1936 | } |
| 1937 | |
| 1938 | irqreturn_t iwl_isr_legacy(int irq, void *data) |
Abhijeet Kolekar | f17d08a | 2009-02-18 15:54:31 -0800 | [diff] [blame] | 1939 | { |
| 1940 | struct iwl_priv *priv = data; |
| 1941 | u32 inta, inta_mask; |
| 1942 | u32 inta_fh; |
| 1943 | if (!priv) |
| 1944 | return IRQ_NONE; |
| 1945 | |
| 1946 | spin_lock(&priv->lock); |
| 1947 | |
| 1948 | /* Disable (but don't clear!) interrupts here to avoid |
| 1949 | * back-to-back ISRs and sporadic interrupts from our NIC. |
| 1950 | * If we have something to service, the tasklet will re-enable ints. |
| 1951 | * If we *don't* have something, we'll re-enable before leaving here. */ |
| 1952 | inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */ |
| 1953 | iwl_write32(priv, CSR_INT_MASK, 0x00000000); |
| 1954 | |
| 1955 | /* Discover which interrupts are active/pending */ |
| 1956 | inta = iwl_read32(priv, CSR_INT); |
| 1957 | inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); |
| 1958 | |
| 1959 | /* Ignore interrupt if there's nothing in NIC to service. |
| 1960 | * This may be due to IRQ shared with another device, |
| 1961 | * or due to sporadic interrupts thrown from our NIC. */ |
| 1962 | if (!inta && !inta_fh) { |
| 1963 | IWL_DEBUG_ISR(priv, "Ignore interrupt, inta == 0, inta_fh == 0\n"); |
| 1964 | goto none; |
| 1965 | } |
| 1966 | |
| 1967 | if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) { |
| 1968 | /* Hardware disappeared. It might have already raised |
| 1969 | * an interrupt */ |
| 1970 | IWL_WARN(priv, "HARDWARE GONE?? INTA == 0x%08x\n", inta); |
| 1971 | goto unplugged; |
| 1972 | } |
| 1973 | |
| 1974 | IWL_DEBUG_ISR(priv, "ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", |
| 1975 | inta, inta_mask, inta_fh); |
| 1976 | |
| 1977 | inta &= ~CSR_INT_BIT_SCD; |
| 1978 | |
| 1979 | /* iwl_irq_tasklet() will service interrupts and re-enable them */ |
| 1980 | if (likely(inta || inta_fh)) |
| 1981 | tasklet_schedule(&priv->irq_tasklet); |
| 1982 | |
| 1983 | unplugged: |
| 1984 | spin_unlock(&priv->lock); |
| 1985 | return IRQ_HANDLED; |
| 1986 | |
| 1987 | none: |
| 1988 | /* re-enable interrupts here since we don't have anything to service. */ |
| 1989 | /* only Re-enable if diabled by irq */ |
| 1990 | if (test_bit(STATUS_INT_ENABLED, &priv->status)) |
| 1991 | iwl_enable_interrupts(priv); |
| 1992 | spin_unlock(&priv->lock); |
| 1993 | return IRQ_NONE; |
| 1994 | } |
Mohamed Abbas | ef850d7 | 2009-05-22 11:01:50 -0700 | [diff] [blame] | 1995 | EXPORT_SYMBOL(iwl_isr_legacy); |
Abhijeet Kolekar | f17d08a | 2009-02-18 15:54:31 -0800 | [diff] [blame] | 1996 | |
Samuel Ortiz | 17f841c | 2009-01-23 13:45:20 -0800 | [diff] [blame] | 1997 | int iwl_send_bt_config(struct iwl_priv *priv) |
| 1998 | { |
| 1999 | struct iwl_bt_cmd bt_cmd = { |
Wey-Yi Guy | 456d0f7 | 2009-10-23 13:42:23 -0700 | [diff] [blame] | 2000 | .lead_time = BT_LEAD_TIME_DEF, |
| 2001 | .max_kill = BT_MAX_KILL_DEF, |
Samuel Ortiz | 17f841c | 2009-01-23 13:45:20 -0800 | [diff] [blame] | 2002 | .kill_ack_mask = 0, |
| 2003 | .kill_cts_mask = 0, |
| 2004 | }; |
| 2005 | |
Wey-Yi Guy | 06702a7 | 2010-01-22 14:22:51 -0800 | [diff] [blame] | 2006 | if (!bt_coex_active) |
| 2007 | bt_cmd.flags = BT_COEX_DISABLE; |
| 2008 | else |
| 2009 | bt_cmd.flags = BT_COEX_ENABLE; |
| 2010 | |
| 2011 | IWL_DEBUG_INFO(priv, "BT coex %s\n", |
| 2012 | (bt_cmd.flags == BT_COEX_DISABLE) ? "disable" : "active"); |
| 2013 | |
Samuel Ortiz | 17f841c | 2009-01-23 13:45:20 -0800 | [diff] [blame] | 2014 | return iwl_send_cmd_pdu(priv, REPLY_BT_CONFIG, |
| 2015 | sizeof(struct iwl_bt_cmd), &bt_cmd); |
| 2016 | } |
| 2017 | EXPORT_SYMBOL(iwl_send_bt_config); |
| 2018 | |
Wey-Yi Guy | ef8d552 | 2009-11-13 11:56:28 -0800 | [diff] [blame] | 2019 | int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags, bool clear) |
Emmanuel Grumbach | 49ea859 | 2008-04-15 16:01:37 -0700 | [diff] [blame] | 2020 | { |
Wey-Yi Guy | ef8d552 | 2009-11-13 11:56:28 -0800 | [diff] [blame] | 2021 | struct iwl_statistics_cmd statistics_cmd = { |
| 2022 | .configuration_flags = |
| 2023 | clear ? IWL_STATS_CONF_CLEAR_STATS : 0, |
Emmanuel Grumbach | 49ea859 | 2008-04-15 16:01:37 -0700 | [diff] [blame] | 2024 | }; |
Wey-Yi Guy | ef8d552 | 2009-11-13 11:56:28 -0800 | [diff] [blame] | 2025 | |
| 2026 | if (flags & CMD_ASYNC) |
| 2027 | return iwl_send_cmd_pdu_async(priv, REPLY_STATISTICS_CMD, |
| 2028 | sizeof(struct iwl_statistics_cmd), |
| 2029 | &statistics_cmd, NULL); |
| 2030 | else |
| 2031 | return iwl_send_cmd_pdu(priv, REPLY_STATISTICS_CMD, |
| 2032 | sizeof(struct iwl_statistics_cmd), |
| 2033 | &statistics_cmd); |
Emmanuel Grumbach | 49ea859 | 2008-04-15 16:01:37 -0700 | [diff] [blame] | 2034 | } |
| 2035 | EXPORT_SYMBOL(iwl_send_statistics_request); |
Tomas Winkler | 7e8c519 | 2008-04-15 16:01:43 -0700 | [diff] [blame] | 2036 | |
Emmanuel Grumbach | b0692f2 | 2008-04-24 11:55:18 -0700 | [diff] [blame] | 2037 | /** |
| 2038 | * iwl_verify_inst_sparse - verify runtime uCode image in card vs. host, |
| 2039 | * using sample data 100 bytes apart. If these sample points are good, |
| 2040 | * it's a pretty good bet that everything between them is good, too. |
| 2041 | */ |
| 2042 | static int iwlcore_verify_inst_sparse(struct iwl_priv *priv, __le32 *image, u32 len) |
| 2043 | { |
| 2044 | u32 val; |
| 2045 | int ret = 0; |
| 2046 | u32 errcnt = 0; |
| 2047 | u32 i; |
| 2048 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2049 | IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len); |
Emmanuel Grumbach | b0692f2 | 2008-04-24 11:55:18 -0700 | [diff] [blame] | 2050 | |
Emmanuel Grumbach | b0692f2 | 2008-04-24 11:55:18 -0700 | [diff] [blame] | 2051 | for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) { |
| 2052 | /* read data comes through single port, auto-incr addr */ |
| 2053 | /* NOTE: Use the debugless read so we don't flood kernel log |
| 2054 | * if IWL_DL_IO is set */ |
| 2055 | iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, |
Samuel Ortiz | 250bdd2 | 2008-12-19 10:37:11 +0800 | [diff] [blame] | 2056 | i + IWL49_RTC_INST_LOWER_BOUND); |
Emmanuel Grumbach | b0692f2 | 2008-04-24 11:55:18 -0700 | [diff] [blame] | 2057 | val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); |
| 2058 | if (val != le32_to_cpu(*image)) { |
| 2059 | ret = -EIO; |
| 2060 | errcnt++; |
| 2061 | if (errcnt >= 3) |
| 2062 | break; |
| 2063 | } |
| 2064 | } |
| 2065 | |
Emmanuel Grumbach | b0692f2 | 2008-04-24 11:55:18 -0700 | [diff] [blame] | 2066 | return ret; |
| 2067 | } |
| 2068 | |
| 2069 | /** |
| 2070 | * iwlcore_verify_inst_full - verify runtime uCode image in card vs. host, |
| 2071 | * looking at all data. |
| 2072 | */ |
| 2073 | static int iwl_verify_inst_full(struct iwl_priv *priv, __le32 *image, |
| 2074 | u32 len) |
| 2075 | { |
| 2076 | u32 val; |
| 2077 | u32 save_len = len; |
| 2078 | int ret = 0; |
| 2079 | u32 errcnt; |
| 2080 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2081 | IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len); |
Emmanuel Grumbach | b0692f2 | 2008-04-24 11:55:18 -0700 | [diff] [blame] | 2082 | |
Samuel Ortiz | 250bdd2 | 2008-12-19 10:37:11 +0800 | [diff] [blame] | 2083 | iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, |
| 2084 | IWL49_RTC_INST_LOWER_BOUND); |
Emmanuel Grumbach | b0692f2 | 2008-04-24 11:55:18 -0700 | [diff] [blame] | 2085 | |
| 2086 | errcnt = 0; |
| 2087 | for (; len > 0; len -= sizeof(u32), image++) { |
| 2088 | /* read data comes through single port, auto-incr addr */ |
| 2089 | /* NOTE: Use the debugless read so we don't flood kernel log |
| 2090 | * if IWL_DL_IO is set */ |
| 2091 | val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); |
| 2092 | if (val != le32_to_cpu(*image)) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 2093 | IWL_ERR(priv, "uCode INST section is invalid at " |
Emmanuel Grumbach | b0692f2 | 2008-04-24 11:55:18 -0700 | [diff] [blame] | 2094 | "offset 0x%x, is 0x%x, s/b 0x%x\n", |
| 2095 | save_len - len, val, le32_to_cpu(*image)); |
| 2096 | ret = -EIO; |
| 2097 | errcnt++; |
| 2098 | if (errcnt >= 20) |
| 2099 | break; |
| 2100 | } |
| 2101 | } |
| 2102 | |
Emmanuel Grumbach | b0692f2 | 2008-04-24 11:55:18 -0700 | [diff] [blame] | 2103 | if (!errcnt) |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2104 | IWL_DEBUG_INFO(priv, |
| 2105 | "ucode image in INSTRUCTION memory is good\n"); |
Emmanuel Grumbach | b0692f2 | 2008-04-24 11:55:18 -0700 | [diff] [blame] | 2106 | |
| 2107 | return ret; |
| 2108 | } |
| 2109 | |
| 2110 | /** |
| 2111 | * iwl_verify_ucode - determine which instruction image is in SRAM, |
| 2112 | * and verify its contents |
| 2113 | */ |
| 2114 | int iwl_verify_ucode(struct iwl_priv *priv) |
| 2115 | { |
| 2116 | __le32 *image; |
| 2117 | u32 len; |
| 2118 | int ret; |
| 2119 | |
| 2120 | /* Try bootstrap */ |
| 2121 | image = (__le32 *)priv->ucode_boot.v_addr; |
| 2122 | len = priv->ucode_boot.len; |
| 2123 | ret = iwlcore_verify_inst_sparse(priv, image, len); |
| 2124 | if (!ret) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2125 | IWL_DEBUG_INFO(priv, "Bootstrap uCode is good in inst SRAM\n"); |
Emmanuel Grumbach | b0692f2 | 2008-04-24 11:55:18 -0700 | [diff] [blame] | 2126 | return 0; |
| 2127 | } |
| 2128 | |
| 2129 | /* Try initialize */ |
| 2130 | image = (__le32 *)priv->ucode_init.v_addr; |
| 2131 | len = priv->ucode_init.len; |
| 2132 | ret = iwlcore_verify_inst_sparse(priv, image, len); |
| 2133 | if (!ret) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2134 | IWL_DEBUG_INFO(priv, "Initialize uCode is good in inst SRAM\n"); |
Emmanuel Grumbach | b0692f2 | 2008-04-24 11:55:18 -0700 | [diff] [blame] | 2135 | return 0; |
| 2136 | } |
| 2137 | |
| 2138 | /* Try runtime/protocol */ |
| 2139 | image = (__le32 *)priv->ucode_code.v_addr; |
| 2140 | len = priv->ucode_code.len; |
| 2141 | ret = iwlcore_verify_inst_sparse(priv, image, len); |
| 2142 | if (!ret) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 2143 | IWL_DEBUG_INFO(priv, "Runtime uCode is good in inst SRAM\n"); |
Emmanuel Grumbach | b0692f2 | 2008-04-24 11:55:18 -0700 | [diff] [blame] | 2144 | return 0; |
| 2145 | } |
| 2146 | |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 2147 | IWL_ERR(priv, "NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n"); |
Emmanuel Grumbach | b0692f2 | 2008-04-24 11:55:18 -0700 | [diff] [blame] | 2148 | |
| 2149 | /* Since nothing seems to match, show first several data entries in |
| 2150 | * instruction SRAM, so maybe visual inspection will give a clue. |
| 2151 | * Selection of bootstrap image (vs. other images) is arbitrary. */ |
| 2152 | image = (__le32 *)priv->ucode_boot.v_addr; |
| 2153 | len = priv->ucode_boot.len; |
| 2154 | ret = iwl_verify_inst_full(priv, image, len); |
| 2155 | |
| 2156 | return ret; |
| 2157 | } |
| 2158 | EXPORT_SYMBOL(iwl_verify_ucode); |
| 2159 | |
Jay Sternberg | 56e12615 | 2008-10-14 12:32:42 -0700 | [diff] [blame] | 2160 | |
Emmanuel Grumbach | 47f4a58 | 2008-06-12 09:47:13 +0800 | [diff] [blame] | 2161 | void iwl_rf_kill_ct_config(struct iwl_priv *priv) |
| 2162 | { |
| 2163 | struct iwl_ct_kill_config cmd; |
Wey-Yi Guy | 672639d | 2009-07-24 11:13:01 -0700 | [diff] [blame] | 2164 | struct iwl_ct_kill_throttling_config adv_cmd; |
Emmanuel Grumbach | 47f4a58 | 2008-06-12 09:47:13 +0800 | [diff] [blame] | 2165 | unsigned long flags; |
| 2166 | int ret = 0; |
Ester Kummer | 189a2b5 | 2008-05-15 13:54:18 +0800 | [diff] [blame] | 2167 | |
Emmanuel Grumbach | 47f4a58 | 2008-06-12 09:47:13 +0800 | [diff] [blame] | 2168 | spin_lock_irqsave(&priv->lock, flags); |
| 2169 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, |
| 2170 | CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT); |
| 2171 | spin_unlock_irqrestore(&priv->lock, flags); |
Johannes Berg | 3ad3b92 | 2009-08-07 15:41:48 -0700 | [diff] [blame] | 2172 | priv->thermal_throttle.ct_kill_toggle = false; |
Emmanuel Grumbach | 47f4a58 | 2008-06-12 09:47:13 +0800 | [diff] [blame] | 2173 | |
Wey-Yi Guy | 480e840 | 2009-10-23 13:42:28 -0700 | [diff] [blame] | 2174 | if (priv->cfg->support_ct_kill_exit) { |
Wey-Yi Guy | 672639d | 2009-07-24 11:13:01 -0700 | [diff] [blame] | 2175 | adv_cmd.critical_temperature_enter = |
| 2176 | cpu_to_le32(priv->hw_params.ct_kill_threshold); |
| 2177 | adv_cmd.critical_temperature_exit = |
| 2178 | cpu_to_le32(priv->hw_params.ct_kill_exit_threshold); |
Emmanuel Grumbach | 47f4a58 | 2008-06-12 09:47:13 +0800 | [diff] [blame] | 2179 | |
Wey-Yi Guy | 672639d | 2009-07-24 11:13:01 -0700 | [diff] [blame] | 2180 | ret = iwl_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD, |
| 2181 | sizeof(adv_cmd), &adv_cmd); |
Wey-Yi Guy | d91b1ba | 2009-08-07 15:41:50 -0700 | [diff] [blame] | 2182 | if (ret) |
| 2183 | IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n"); |
| 2184 | else |
| 2185 | IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD " |
| 2186 | "succeeded, " |
| 2187 | "critical temperature enter is %d," |
| 2188 | "exit is %d\n", |
| 2189 | priv->hw_params.ct_kill_threshold, |
| 2190 | priv->hw_params.ct_kill_exit_threshold); |
Wey-Yi Guy | 480e840 | 2009-10-23 13:42:28 -0700 | [diff] [blame] | 2191 | } else { |
Wey-Yi Guy | 672639d | 2009-07-24 11:13:01 -0700 | [diff] [blame] | 2192 | cmd.critical_temperature_R = |
| 2193 | cpu_to_le32(priv->hw_params.ct_kill_threshold); |
| 2194 | |
| 2195 | ret = iwl_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD, |
| 2196 | sizeof(cmd), &cmd); |
Wey-Yi Guy | d91b1ba | 2009-08-07 15:41:50 -0700 | [diff] [blame] | 2197 | if (ret) |
| 2198 | IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n"); |
| 2199 | else |
| 2200 | IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD " |
| 2201 | "succeeded, " |
| 2202 | "critical temperature is %d\n", |
| 2203 | priv->hw_params.ct_kill_threshold); |
Wey-Yi Guy | 672639d | 2009-07-24 11:13:01 -0700 | [diff] [blame] | 2204 | } |
Emmanuel Grumbach | 47f4a58 | 2008-06-12 09:47:13 +0800 | [diff] [blame] | 2205 | } |
| 2206 | EXPORT_SYMBOL(iwl_rf_kill_ct_config); |
Emmanuel Grumbach | 14a08a7 | 2008-06-13 15:44:55 +0800 | [diff] [blame] | 2207 | |
Winkler, Tomas | 0ad91a3 | 2008-12-02 12:14:00 -0800 | [diff] [blame] | 2208 | |
Emmanuel Grumbach | 14a08a7 | 2008-06-13 15:44:55 +0800 | [diff] [blame] | 2209 | /* |
| 2210 | * CARD_STATE_CMD |
| 2211 | * |
| 2212 | * Use: Sets the device's internal card state to enable, disable, or halt |
| 2213 | * |
| 2214 | * When in the 'enable' state the card operates as normal. |
| 2215 | * When in the 'disable' state, the card enters into a low power mode. |
| 2216 | * When in the 'halt' state, the card is shut down and must be fully |
| 2217 | * restarted to come back on. |
| 2218 | */ |
Samuel Ortiz | c496294 | 2008-12-22 11:31:18 +0800 | [diff] [blame] | 2219 | int iwl_send_card_state(struct iwl_priv *priv, u32 flags, u8 meta_flag) |
Emmanuel Grumbach | 14a08a7 | 2008-06-13 15:44:55 +0800 | [diff] [blame] | 2220 | { |
| 2221 | struct iwl_host_cmd cmd = { |
| 2222 | .id = REPLY_CARD_STATE_CMD, |
| 2223 | .len = sizeof(u32), |
| 2224 | .data = &flags, |
Johannes Berg | c2acea8 | 2009-07-24 11:13:05 -0700 | [diff] [blame] | 2225 | .flags = meta_flag, |
Emmanuel Grumbach | 14a08a7 | 2008-06-13 15:44:55 +0800 | [diff] [blame] | 2226 | }; |
| 2227 | |
| 2228 | return iwl_send_cmd(priv, &cmd); |
| 2229 | } |
| 2230 | |
Abhijeet Kolekar | 030f05e | 2009-02-18 15:54:28 -0800 | [diff] [blame] | 2231 | void iwl_rx_pm_sleep_notif(struct iwl_priv *priv, |
| 2232 | struct iwl_rx_mem_buffer *rxb) |
| 2233 | { |
| 2234 | #ifdef CONFIG_IWLWIFI_DEBUG |
Zhu Yi | 2f30122 | 2009-10-09 17:19:45 +0800 | [diff] [blame] | 2235 | struct iwl_rx_packet *pkt = rxb_addr(rxb); |
Abhijeet Kolekar | 030f05e | 2009-02-18 15:54:28 -0800 | [diff] [blame] | 2236 | struct iwl_sleep_notification *sleep = &(pkt->u.sleep_notif); |
| 2237 | IWL_DEBUG_RX(priv, "sleep mode: %d, src: %d\n", |
| 2238 | sleep->pm_sleep_mode, sleep->pm_wakeup_src); |
| 2239 | #endif |
| 2240 | } |
| 2241 | EXPORT_SYMBOL(iwl_rx_pm_sleep_notif); |
| 2242 | |
| 2243 | void iwl_rx_pm_debug_statistics_notif(struct iwl_priv *priv, |
| 2244 | struct iwl_rx_mem_buffer *rxb) |
| 2245 | { |
Zhu Yi | 2f30122 | 2009-10-09 17:19:45 +0800 | [diff] [blame] | 2246 | struct iwl_rx_packet *pkt = rxb_addr(rxb); |
Daniel C Halperin | 396887a | 2009-08-13 13:31:01 -0700 | [diff] [blame] | 2247 | u32 len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK; |
Abhijeet Kolekar | 030f05e | 2009-02-18 15:54:28 -0800 | [diff] [blame] | 2248 | IWL_DEBUG_RADIO(priv, "Dumping %d bytes of unhandled " |
Daniel C Halperin | 396887a | 2009-08-13 13:31:01 -0700 | [diff] [blame] | 2249 | "notification for %s:\n", len, |
| 2250 | get_cmd_string(pkt->hdr.cmd)); |
| 2251 | iwl_print_hex_dump(priv, IWL_DL_RADIO, pkt->u.raw, len); |
Abhijeet Kolekar | 030f05e | 2009-02-18 15:54:28 -0800 | [diff] [blame] | 2252 | } |
| 2253 | EXPORT_SYMBOL(iwl_rx_pm_debug_statistics_notif); |
Abhijeet Kolekar | 261b9c3 | 2009-02-18 15:54:29 -0800 | [diff] [blame] | 2254 | |
| 2255 | void iwl_rx_reply_error(struct iwl_priv *priv, |
| 2256 | struct iwl_rx_mem_buffer *rxb) |
| 2257 | { |
Zhu Yi | 2f30122 | 2009-10-09 17:19:45 +0800 | [diff] [blame] | 2258 | struct iwl_rx_packet *pkt = rxb_addr(rxb); |
Abhijeet Kolekar | 261b9c3 | 2009-02-18 15:54:29 -0800 | [diff] [blame] | 2259 | |
| 2260 | IWL_ERR(priv, "Error Reply type 0x%08X cmd %s (0x%02X) " |
| 2261 | "seq 0x%04X ser 0x%08X\n", |
| 2262 | le32_to_cpu(pkt->u.err_resp.error_type), |
| 2263 | get_cmd_string(pkt->u.err_resp.cmd_id), |
| 2264 | pkt->u.err_resp.cmd_id, |
| 2265 | le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num), |
| 2266 | le32_to_cpu(pkt->u.err_resp.error_info)); |
| 2267 | } |
| 2268 | EXPORT_SYMBOL(iwl_rx_reply_error); |
| 2269 | |
Wey-Yi Guy | a83b914 | 2009-04-08 11:39:32 -0700 | [diff] [blame] | 2270 | void iwl_clear_isr_stats(struct iwl_priv *priv) |
| 2271 | { |
| 2272 | memset(&priv->isr_stats, 0, sizeof(priv->isr_stats)); |
| 2273 | } |
Wey-Yi Guy | a83b914 | 2009-04-08 11:39:32 -0700 | [diff] [blame] | 2274 | |
Abhijeet Kolekar | 488829f | 2009-03-26 10:14:10 -0700 | [diff] [blame] | 2275 | int iwl_mac_conf_tx(struct ieee80211_hw *hw, u16 queue, |
| 2276 | const struct ieee80211_tx_queue_params *params) |
| 2277 | { |
| 2278 | struct iwl_priv *priv = hw->priv; |
| 2279 | unsigned long flags; |
| 2280 | int q; |
| 2281 | |
| 2282 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
| 2283 | |
| 2284 | if (!iwl_is_ready_rf(priv)) { |
| 2285 | IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n"); |
| 2286 | return -EIO; |
| 2287 | } |
| 2288 | |
| 2289 | if (queue >= AC_NUM) { |
| 2290 | IWL_DEBUG_MAC80211(priv, "leave - queue >= AC_NUM %d\n", queue); |
| 2291 | return 0; |
| 2292 | } |
| 2293 | |
| 2294 | q = AC_NUM - 1 - queue; |
| 2295 | |
| 2296 | spin_lock_irqsave(&priv->lock, flags); |
| 2297 | |
| 2298 | priv->qos_data.def_qos_parm.ac[q].cw_min = cpu_to_le16(params->cw_min); |
| 2299 | priv->qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max); |
| 2300 | priv->qos_data.def_qos_parm.ac[q].aifsn = params->aifs; |
| 2301 | priv->qos_data.def_qos_parm.ac[q].edca_txop = |
| 2302 | cpu_to_le16((params->txop * 32)); |
| 2303 | |
| 2304 | priv->qos_data.def_qos_parm.ac[q].reserved1 = 0; |
| 2305 | priv->qos_data.qos_active = 1; |
| 2306 | |
| 2307 | if (priv->iw_mode == NL80211_IFTYPE_AP) |
| 2308 | iwl_activate_qos(priv, 1); |
| 2309 | else if (priv->assoc_id && iwl_is_associated(priv)) |
| 2310 | iwl_activate_qos(priv, 0); |
| 2311 | |
| 2312 | spin_unlock_irqrestore(&priv->lock, flags); |
| 2313 | |
| 2314 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
| 2315 | return 0; |
| 2316 | } |
| 2317 | EXPORT_SYMBOL(iwl_mac_conf_tx); |
Abhijeet Kolekar | 5bbe233 | 2009-04-08 11:26:35 -0700 | [diff] [blame] | 2318 | |
| 2319 | static void iwl_ht_conf(struct iwl_priv *priv, |
Johannes Berg | 02bb1be | 2009-09-11 10:38:17 -0700 | [diff] [blame] | 2320 | struct ieee80211_bss_conf *bss_conf) |
Abhijeet Kolekar | 5bbe233 | 2009-04-08 11:26:35 -0700 | [diff] [blame] | 2321 | { |
Johannes Berg | fad95bf | 2009-09-11 10:38:15 -0700 | [diff] [blame] | 2322 | struct iwl_ht_config *ht_conf = &priv->current_ht_config; |
Abhijeet Kolekar | 5bbe233 | 2009-04-08 11:26:35 -0700 | [diff] [blame] | 2323 | struct ieee80211_sta *sta; |
| 2324 | |
| 2325 | IWL_DEBUG_MAC80211(priv, "enter: \n"); |
| 2326 | |
Johannes Berg | fad95bf | 2009-09-11 10:38:15 -0700 | [diff] [blame] | 2327 | if (!ht_conf->is_ht) |
Abhijeet Kolekar | 5bbe233 | 2009-04-08 11:26:35 -0700 | [diff] [blame] | 2328 | return; |
| 2329 | |
Johannes Berg | fad95bf | 2009-09-11 10:38:15 -0700 | [diff] [blame] | 2330 | ht_conf->ht_protection = |
Johannes Berg | 9ed6bcc | 2009-05-08 20:47:39 +0200 | [diff] [blame] | 2331 | bss_conf->ht_operation_mode & IEEE80211_HT_OP_MODE_PROTECTION; |
Johannes Berg | fad95bf | 2009-09-11 10:38:15 -0700 | [diff] [blame] | 2332 | ht_conf->non_GF_STA_present = |
Johannes Berg | 9ed6bcc | 2009-05-08 20:47:39 +0200 | [diff] [blame] | 2333 | !!(bss_conf->ht_operation_mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT); |
Abhijeet Kolekar | 5bbe233 | 2009-04-08 11:26:35 -0700 | [diff] [blame] | 2334 | |
Johannes Berg | 02bb1be | 2009-09-11 10:38:17 -0700 | [diff] [blame] | 2335 | ht_conf->single_chain_sufficient = false; |
| 2336 | |
| 2337 | switch (priv->iw_mode) { |
| 2338 | case NL80211_IFTYPE_STATION: |
| 2339 | rcu_read_lock(); |
Johannes Berg | 5ed176e | 2009-11-04 14:42:28 +0100 | [diff] [blame] | 2340 | sta = ieee80211_find_sta(priv->vif, priv->bssid); |
Johannes Berg | 02bb1be | 2009-09-11 10:38:17 -0700 | [diff] [blame] | 2341 | if (sta) { |
| 2342 | struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap; |
| 2343 | int maxstreams; |
| 2344 | |
| 2345 | maxstreams = (ht_cap->mcs.tx_params & |
| 2346 | IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK) |
| 2347 | >> IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT; |
| 2348 | maxstreams += 1; |
| 2349 | |
| 2350 | if ((ht_cap->mcs.rx_mask[1] == 0) && |
| 2351 | (ht_cap->mcs.rx_mask[2] == 0)) |
| 2352 | ht_conf->single_chain_sufficient = true; |
| 2353 | if (maxstreams <= 1) |
| 2354 | ht_conf->single_chain_sufficient = true; |
| 2355 | } else { |
| 2356 | /* |
| 2357 | * If at all, this can only happen through a race |
| 2358 | * when the AP disconnects us while we're still |
| 2359 | * setting up the connection, in that case mac80211 |
| 2360 | * will soon tell us about that. |
| 2361 | */ |
| 2362 | ht_conf->single_chain_sufficient = true; |
| 2363 | } |
| 2364 | rcu_read_unlock(); |
| 2365 | break; |
| 2366 | case NL80211_IFTYPE_ADHOC: |
| 2367 | ht_conf->single_chain_sufficient = true; |
| 2368 | break; |
| 2369 | default: |
| 2370 | break; |
| 2371 | } |
Abhijeet Kolekar | 5bbe233 | 2009-04-08 11:26:35 -0700 | [diff] [blame] | 2372 | |
| 2373 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
| 2374 | } |
| 2375 | |
Abhijeet Kolekar | c91c3ef | 2010-01-08 10:04:31 -0800 | [diff] [blame] | 2376 | static inline void iwl_set_no_assoc(struct iwl_priv *priv) |
| 2377 | { |
| 2378 | priv->assoc_id = 0; |
| 2379 | iwl_led_disassociate(priv); |
| 2380 | /* |
| 2381 | * inform the ucode that there is no longer an |
| 2382 | * association and that no more packets should be |
| 2383 | * sent |
| 2384 | */ |
| 2385 | priv->staging_rxon.filter_flags &= |
| 2386 | ~RXON_FILTER_ASSOC_MSK; |
| 2387 | priv->staging_rxon.assoc_id = 0; |
| 2388 | iwlcore_commit_rxon(priv); |
| 2389 | } |
| 2390 | |
Abhijeet Kolekar | 5bbe233 | 2009-04-08 11:26:35 -0700 | [diff] [blame] | 2391 | #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6) |
| 2392 | void iwl_bss_info_changed(struct ieee80211_hw *hw, |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 2393 | struct ieee80211_vif *vif, |
| 2394 | struct ieee80211_bss_conf *bss_conf, |
| 2395 | u32 changes) |
Abhijeet Kolekar | 5bbe233 | 2009-04-08 11:26:35 -0700 | [diff] [blame] | 2396 | { |
| 2397 | struct iwl_priv *priv = hw->priv; |
Mohamed Abbas | 3a65029 | 2009-04-08 11:39:29 -0700 | [diff] [blame] | 2398 | int ret; |
Abhijeet Kolekar | 5bbe233 | 2009-04-08 11:26:35 -0700 | [diff] [blame] | 2399 | |
| 2400 | IWL_DEBUG_MAC80211(priv, "changes = 0x%X\n", changes); |
| 2401 | |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 2402 | if (!iwl_is_alive(priv)) |
| 2403 | return; |
| 2404 | |
| 2405 | mutex_lock(&priv->mutex); |
| 2406 | |
| 2407 | if (changes & BSS_CHANGED_BEACON && |
| 2408 | priv->iw_mode == NL80211_IFTYPE_AP) { |
| 2409 | dev_kfree_skb(priv->ibss_beacon); |
| 2410 | priv->ibss_beacon = ieee80211_beacon_get(hw, vif); |
| 2411 | } |
| 2412 | |
Johannes Berg | d7129e1 | 2009-06-12 13:22:48 -0700 | [diff] [blame] | 2413 | if (changes & BSS_CHANGED_BEACON_INT) { |
| 2414 | priv->beacon_int = bss_conf->beacon_int; |
| 2415 | /* TODO: in AP mode, do something to make this take effect */ |
| 2416 | } |
| 2417 | |
| 2418 | if (changes & BSS_CHANGED_BSSID) { |
| 2419 | IWL_DEBUG_MAC80211(priv, "BSSID %pM\n", bss_conf->bssid); |
| 2420 | |
| 2421 | /* |
| 2422 | * If there is currently a HW scan going on in the |
| 2423 | * background then we need to cancel it else the RXON |
| 2424 | * below/in post_associate will fail. |
| 2425 | */ |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 2426 | if (iwl_scan_cancel_timeout(priv, 100)) { |
Johannes Berg | d7129e1 | 2009-06-12 13:22:48 -0700 | [diff] [blame] | 2427 | IWL_WARN(priv, "Aborted scan still in progress after 100ms\n"); |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 2428 | IWL_DEBUG_MAC80211(priv, "leaving - scan abort failed.\n"); |
| 2429 | mutex_unlock(&priv->mutex); |
| 2430 | return; |
| 2431 | } |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 2432 | |
Johannes Berg | d7129e1 | 2009-06-12 13:22:48 -0700 | [diff] [blame] | 2433 | /* mac80211 only sets assoc when in STATION mode */ |
| 2434 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC || |
| 2435 | bss_conf->assoc) { |
| 2436 | memcpy(priv->staging_rxon.bssid_addr, |
| 2437 | bss_conf->bssid, ETH_ALEN); |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 2438 | |
Johannes Berg | d7129e1 | 2009-06-12 13:22:48 -0700 | [diff] [blame] | 2439 | /* currently needed in a few places */ |
| 2440 | memcpy(priv->bssid, bss_conf->bssid, ETH_ALEN); |
| 2441 | } else { |
| 2442 | priv->staging_rxon.filter_flags &= |
| 2443 | ~RXON_FILTER_ASSOC_MSK; |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 2444 | } |
Johannes Berg | d7129e1 | 2009-06-12 13:22:48 -0700 | [diff] [blame] | 2445 | |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 2446 | } |
| 2447 | |
Johannes Berg | d7129e1 | 2009-06-12 13:22:48 -0700 | [diff] [blame] | 2448 | /* |
| 2449 | * This needs to be after setting the BSSID in case |
| 2450 | * mac80211 decides to do both changes at once because |
| 2451 | * it will invoke post_associate. |
| 2452 | */ |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 2453 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC && |
| 2454 | changes & BSS_CHANGED_BEACON) { |
| 2455 | struct sk_buff *beacon = ieee80211_beacon_get(hw, vif); |
| 2456 | |
| 2457 | if (beacon) |
| 2458 | iwl_mac_beacon_update(hw, beacon); |
| 2459 | } |
| 2460 | |
Abhijeet Kolekar | 5bbe233 | 2009-04-08 11:26:35 -0700 | [diff] [blame] | 2461 | if (changes & BSS_CHANGED_ERP_PREAMBLE) { |
| 2462 | IWL_DEBUG_MAC80211(priv, "ERP_PREAMBLE %d\n", |
| 2463 | bss_conf->use_short_preamble); |
| 2464 | if (bss_conf->use_short_preamble) |
| 2465 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; |
| 2466 | else |
| 2467 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; |
| 2468 | } |
| 2469 | |
| 2470 | if (changes & BSS_CHANGED_ERP_CTS_PROT) { |
| 2471 | IWL_DEBUG_MAC80211(priv, "ERP_CTS %d\n", bss_conf->use_cts_prot); |
| 2472 | if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ)) |
| 2473 | priv->staging_rxon.flags |= RXON_FLG_TGG_PROTECT_MSK; |
| 2474 | else |
| 2475 | priv->staging_rxon.flags &= ~RXON_FLG_TGG_PROTECT_MSK; |
| 2476 | } |
| 2477 | |
Johannes Berg | d7129e1 | 2009-06-12 13:22:48 -0700 | [diff] [blame] | 2478 | if (changes & BSS_CHANGED_BASIC_RATES) { |
| 2479 | /* XXX use this information |
| 2480 | * |
| 2481 | * To do that, remove code from iwl_set_rate() and put something |
| 2482 | * like this here: |
| 2483 | * |
| 2484 | if (A-band) |
| 2485 | priv->staging_rxon.ofdm_basic_rates = |
| 2486 | bss_conf->basic_rates; |
| 2487 | else |
| 2488 | priv->staging_rxon.ofdm_basic_rates = |
| 2489 | bss_conf->basic_rates >> 4; |
| 2490 | priv->staging_rxon.cck_basic_rates = |
| 2491 | bss_conf->basic_rates & 0xF; |
| 2492 | */ |
| 2493 | } |
| 2494 | |
Abhijeet Kolekar | 5bbe233 | 2009-04-08 11:26:35 -0700 | [diff] [blame] | 2495 | if (changes & BSS_CHANGED_HT) { |
| 2496 | iwl_ht_conf(priv, bss_conf); |
Abhijeet Kolekar | 4582353 | 2009-04-08 11:26:44 -0700 | [diff] [blame] | 2497 | |
| 2498 | if (priv->cfg->ops->hcmd->set_rxon_chain) |
| 2499 | priv->cfg->ops->hcmd->set_rxon_chain(priv); |
Abhijeet Kolekar | 5bbe233 | 2009-04-08 11:26:35 -0700 | [diff] [blame] | 2500 | } |
| 2501 | |
| 2502 | if (changes & BSS_CHANGED_ASSOC) { |
| 2503 | IWL_DEBUG_MAC80211(priv, "ASSOC %d\n", bss_conf->assoc); |
Abhijeet Kolekar | 5bbe233 | 2009-04-08 11:26:35 -0700 | [diff] [blame] | 2504 | if (bss_conf->assoc) { |
| 2505 | priv->assoc_id = bss_conf->aid; |
| 2506 | priv->beacon_int = bss_conf->beacon_int; |
Abhijeet Kolekar | 5bbe233 | 2009-04-08 11:26:35 -0700 | [diff] [blame] | 2507 | priv->timestamp = bss_conf->timestamp; |
| 2508 | priv->assoc_capability = bss_conf->assoc_capability; |
| 2509 | |
Johannes Berg | e932a60 | 2009-10-02 13:44:03 -0700 | [diff] [blame] | 2510 | iwl_led_associate(priv); |
| 2511 | |
Johannes Berg | d7129e1 | 2009-06-12 13:22:48 -0700 | [diff] [blame] | 2512 | /* |
| 2513 | * We have just associated, don't start scan too early |
| 2514 | * leave time for EAPOL exchange to complete. |
| 2515 | * |
| 2516 | * XXX: do this in mac80211 |
Abhijeet Kolekar | 5bbe233 | 2009-04-08 11:26:35 -0700 | [diff] [blame] | 2517 | */ |
| 2518 | priv->next_scan_jiffies = jiffies + |
| 2519 | IWL_DELAY_NEXT_SCAN_AFTER_ASSOC; |
Johannes Berg | d7129e1 | 2009-06-12 13:22:48 -0700 | [diff] [blame] | 2520 | if (!iwl_is_rfkill(priv)) |
| 2521 | priv->cfg->ops->lib->post_associate(priv); |
Abhijeet Kolekar | c91c3ef | 2010-01-08 10:04:31 -0800 | [diff] [blame] | 2522 | } else |
| 2523 | iwl_set_no_assoc(priv); |
Abhijeet Kolekar | 5bbe233 | 2009-04-08 11:26:35 -0700 | [diff] [blame] | 2524 | } |
Johannes Berg | d7129e1 | 2009-06-12 13:22:48 -0700 | [diff] [blame] | 2525 | |
| 2526 | if (changes && iwl_is_associated(priv) && priv->assoc_id) { |
| 2527 | IWL_DEBUG_MAC80211(priv, "Changes (%#x) while associated\n", |
| 2528 | changes); |
| 2529 | ret = iwl_send_rxon_assoc(priv); |
| 2530 | if (!ret) { |
| 2531 | /* Sync active_rxon with latest change. */ |
| 2532 | memcpy((void *)&priv->active_rxon, |
| 2533 | &priv->staging_rxon, |
| 2534 | sizeof(struct iwl_rxon_cmd)); |
| 2535 | } |
| 2536 | } |
| 2537 | |
Abhijeet Kolekar | c91c3ef | 2010-01-08 10:04:31 -0800 | [diff] [blame] | 2538 | if (changes & BSS_CHANGED_BEACON_ENABLED) { |
| 2539 | if (vif->bss_conf.enable_beacon) { |
| 2540 | memcpy(priv->staging_rxon.bssid_addr, |
| 2541 | bss_conf->bssid, ETH_ALEN); |
| 2542 | memcpy(priv->bssid, bss_conf->bssid, ETH_ALEN); |
| 2543 | iwlcore_config_ap(priv); |
| 2544 | } else |
| 2545 | iwl_set_no_assoc(priv); |
Daniel C Halperin | f513dff | 2009-11-13 11:56:34 -0800 | [diff] [blame] | 2546 | } |
| 2547 | |
Johannes Berg | d7129e1 | 2009-06-12 13:22:48 -0700 | [diff] [blame] | 2548 | mutex_unlock(&priv->mutex); |
| 2549 | |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 2550 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
Abhijeet Kolekar | 5bbe233 | 2009-04-08 11:26:35 -0700 | [diff] [blame] | 2551 | } |
| 2552 | EXPORT_SYMBOL(iwl_bss_info_changed); |
| 2553 | |
Abhijeet Kolekar | 9944b93 | 2009-04-08 11:26:36 -0700 | [diff] [blame] | 2554 | int iwl_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb) |
| 2555 | { |
| 2556 | struct iwl_priv *priv = hw->priv; |
| 2557 | unsigned long flags; |
| 2558 | __le64 timestamp; |
| 2559 | |
| 2560 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
| 2561 | |
| 2562 | if (!iwl_is_ready_rf(priv)) { |
| 2563 | IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n"); |
| 2564 | return -EIO; |
| 2565 | } |
| 2566 | |
| 2567 | if (priv->iw_mode != NL80211_IFTYPE_ADHOC) { |
| 2568 | IWL_DEBUG_MAC80211(priv, "leave - not IBSS\n"); |
| 2569 | return -EIO; |
| 2570 | } |
| 2571 | |
| 2572 | spin_lock_irqsave(&priv->lock, flags); |
| 2573 | |
| 2574 | if (priv->ibss_beacon) |
| 2575 | dev_kfree_skb(priv->ibss_beacon); |
| 2576 | |
| 2577 | priv->ibss_beacon = skb; |
| 2578 | |
| 2579 | priv->assoc_id = 0; |
| 2580 | timestamp = ((struct ieee80211_mgmt *)skb->data)->u.beacon.timestamp; |
| 2581 | priv->timestamp = le64_to_cpu(timestamp); |
| 2582 | |
| 2583 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
| 2584 | spin_unlock_irqrestore(&priv->lock, flags); |
| 2585 | |
| 2586 | iwl_reset_qos(priv); |
| 2587 | |
| 2588 | priv->cfg->ops->lib->post_associate(priv); |
| 2589 | |
| 2590 | |
| 2591 | return 0; |
| 2592 | } |
| 2593 | EXPORT_SYMBOL(iwl_mac_beacon_update); |
| 2594 | |
Abhijeet Kolekar | 727882d | 2009-04-08 11:26:45 -0700 | [diff] [blame] | 2595 | int iwl_set_mode(struct iwl_priv *priv, int mode) |
| 2596 | { |
| 2597 | if (mode == NL80211_IFTYPE_ADHOC) { |
| 2598 | const struct iwl_channel_info *ch_info; |
| 2599 | |
| 2600 | ch_info = iwl_get_channel_info(priv, |
| 2601 | priv->band, |
| 2602 | le16_to_cpu(priv->staging_rxon.channel)); |
| 2603 | |
| 2604 | if (!ch_info || !is_channel_ibss(ch_info)) { |
| 2605 | IWL_ERR(priv, "channel %d not IBSS channel\n", |
| 2606 | le16_to_cpu(priv->staging_rxon.channel)); |
| 2607 | return -EINVAL; |
| 2608 | } |
| 2609 | } |
| 2610 | |
| 2611 | iwl_connection_init_rx_config(priv, mode); |
| 2612 | |
| 2613 | if (priv->cfg->ops->hcmd->set_rxon_chain) |
| 2614 | priv->cfg->ops->hcmd->set_rxon_chain(priv); |
| 2615 | |
| 2616 | memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); |
| 2617 | |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 2618 | iwl_clear_stations_table(priv); |
Abhijeet Kolekar | 727882d | 2009-04-08 11:26:45 -0700 | [diff] [blame] | 2619 | |
| 2620 | /* dont commit rxon if rf-kill is on*/ |
| 2621 | if (!iwl_is_ready_rf(priv)) |
| 2622 | return -EAGAIN; |
| 2623 | |
Abhijeet Kolekar | 727882d | 2009-04-08 11:26:45 -0700 | [diff] [blame] | 2624 | iwlcore_commit_rxon(priv); |
| 2625 | |
| 2626 | return 0; |
| 2627 | } |
| 2628 | EXPORT_SYMBOL(iwl_set_mode); |
| 2629 | |
Abhijeet Kolekar | cbb6ab9 | 2009-04-08 11:26:46 -0700 | [diff] [blame] | 2630 | int iwl_mac_add_interface(struct ieee80211_hw *hw, |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 2631 | struct ieee80211_vif *vif) |
Abhijeet Kolekar | cbb6ab9 | 2009-04-08 11:26:46 -0700 | [diff] [blame] | 2632 | { |
| 2633 | struct iwl_priv *priv = hw->priv; |
Johannes Berg | 47e28f4 | 2010-01-20 11:21:06 -0800 | [diff] [blame] | 2634 | int err = 0; |
Abhijeet Kolekar | cbb6ab9 | 2009-04-08 11:26:46 -0700 | [diff] [blame] | 2635 | |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 2636 | IWL_DEBUG_MAC80211(priv, "enter: type %d\n", vif->type); |
Abhijeet Kolekar | cbb6ab9 | 2009-04-08 11:26:46 -0700 | [diff] [blame] | 2637 | |
Johannes Berg | 47e28f4 | 2010-01-20 11:21:06 -0800 | [diff] [blame] | 2638 | mutex_lock(&priv->mutex); |
| 2639 | |
Abhijeet Kolekar | cbb6ab9 | 2009-04-08 11:26:46 -0700 | [diff] [blame] | 2640 | if (priv->vif) { |
| 2641 | IWL_DEBUG_MAC80211(priv, "leave - vif != NULL\n"); |
Johannes Berg | 47e28f4 | 2010-01-20 11:21:06 -0800 | [diff] [blame] | 2642 | err = -EOPNOTSUPP; |
| 2643 | goto out; |
Abhijeet Kolekar | cbb6ab9 | 2009-04-08 11:26:46 -0700 | [diff] [blame] | 2644 | } |
| 2645 | |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 2646 | priv->vif = vif; |
| 2647 | priv->iw_mode = vif->type; |
Abhijeet Kolekar | cbb6ab9 | 2009-04-08 11:26:46 -0700 | [diff] [blame] | 2648 | |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 2649 | if (vif->addr) { |
| 2650 | IWL_DEBUG_MAC80211(priv, "Set %pM\n", vif->addr); |
| 2651 | memcpy(priv->mac_addr, vif->addr, ETH_ALEN); |
Abhijeet Kolekar | cbb6ab9 | 2009-04-08 11:26:46 -0700 | [diff] [blame] | 2652 | } |
| 2653 | |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 2654 | if (iwl_set_mode(priv, vif->type) == -EAGAIN) |
Abhijeet Kolekar | cbb6ab9 | 2009-04-08 11:26:46 -0700 | [diff] [blame] | 2655 | /* we are not ready, will run again when ready */ |
| 2656 | set_bit(STATUS_MODE_PENDING, &priv->status); |
| 2657 | |
Johannes Berg | 47e28f4 | 2010-01-20 11:21:06 -0800 | [diff] [blame] | 2658 | out: |
Abhijeet Kolekar | cbb6ab9 | 2009-04-08 11:26:46 -0700 | [diff] [blame] | 2659 | mutex_unlock(&priv->mutex); |
| 2660 | |
| 2661 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
Johannes Berg | 47e28f4 | 2010-01-20 11:21:06 -0800 | [diff] [blame] | 2662 | return err; |
Abhijeet Kolekar | cbb6ab9 | 2009-04-08 11:26:46 -0700 | [diff] [blame] | 2663 | } |
| 2664 | EXPORT_SYMBOL(iwl_mac_add_interface); |
| 2665 | |
Abhijeet Kolekar | d805231 | 2009-04-08 11:26:47 -0700 | [diff] [blame] | 2666 | void iwl_mac_remove_interface(struct ieee80211_hw *hw, |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 2667 | struct ieee80211_vif *vif) |
Abhijeet Kolekar | d805231 | 2009-04-08 11:26:47 -0700 | [diff] [blame] | 2668 | { |
| 2669 | struct iwl_priv *priv = hw->priv; |
| 2670 | |
| 2671 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
| 2672 | |
| 2673 | mutex_lock(&priv->mutex); |
| 2674 | |
| 2675 | if (iwl_is_ready_rf(priv)) { |
| 2676 | iwl_scan_cancel_timeout(priv, 100); |
| 2677 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
| 2678 | iwlcore_commit_rxon(priv); |
| 2679 | } |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 2680 | if (priv->vif == vif) { |
Abhijeet Kolekar | d805231 | 2009-04-08 11:26:47 -0700 | [diff] [blame] | 2681 | priv->vif = NULL; |
| 2682 | memset(priv->bssid, 0, ETH_ALEN); |
| 2683 | } |
| 2684 | mutex_unlock(&priv->mutex); |
| 2685 | |
| 2686 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
| 2687 | |
| 2688 | } |
| 2689 | EXPORT_SYMBOL(iwl_mac_remove_interface); |
| 2690 | |
Abhijeet Kolekar | 4808368 | 2009-04-08 11:26:48 -0700 | [diff] [blame] | 2691 | /** |
| 2692 | * iwl_mac_config - mac80211 config callback |
| 2693 | * |
| 2694 | * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to |
| 2695 | * be set inappropriately and the driver currently sets the hardware up to |
| 2696 | * use it whenever needed. |
| 2697 | */ |
| 2698 | int iwl_mac_config(struct ieee80211_hw *hw, u32 changed) |
| 2699 | { |
| 2700 | struct iwl_priv *priv = hw->priv; |
| 2701 | const struct iwl_channel_info *ch_info; |
| 2702 | struct ieee80211_conf *conf = &hw->conf; |
Johannes Berg | fad95bf | 2009-09-11 10:38:15 -0700 | [diff] [blame] | 2703 | struct iwl_ht_config *ht_conf = &priv->current_ht_config; |
Abhijeet Kolekar | 4808368 | 2009-04-08 11:26:48 -0700 | [diff] [blame] | 2704 | unsigned long flags = 0; |
| 2705 | int ret = 0; |
| 2706 | u16 ch; |
| 2707 | int scan_active = 0; |
| 2708 | |
| 2709 | mutex_lock(&priv->mutex); |
| 2710 | |
Abhijeet Kolekar | 4808368 | 2009-04-08 11:26:48 -0700 | [diff] [blame] | 2711 | IWL_DEBUG_MAC80211(priv, "enter to channel %d changed 0x%X\n", |
| 2712 | conf->channel->hw_value, changed); |
| 2713 | |
| 2714 | if (unlikely(!priv->cfg->mod_params->disable_hw_scan && |
| 2715 | test_bit(STATUS_SCANNING, &priv->status))) { |
| 2716 | scan_active = 1; |
| 2717 | IWL_DEBUG_MAC80211(priv, "leave - scanning\n"); |
| 2718 | } |
| 2719 | |
Johannes Berg | ba37a3d | 2009-12-10 14:37:27 -0800 | [diff] [blame] | 2720 | if (changed & (IEEE80211_CONF_CHANGE_SMPS | |
| 2721 | IEEE80211_CONF_CHANGE_CHANNEL)) { |
| 2722 | /* mac80211 uses static for non-HT which is what we want */ |
| 2723 | priv->current_ht_config.smps = conf->smps_mode; |
| 2724 | |
| 2725 | /* |
| 2726 | * Recalculate chain counts. |
| 2727 | * |
| 2728 | * If monitor mode is enabled then mac80211 will |
| 2729 | * set up the SM PS mode to OFF if an HT channel is |
| 2730 | * configured. |
| 2731 | */ |
| 2732 | if (priv->cfg->ops->hcmd->set_rxon_chain) |
| 2733 | priv->cfg->ops->hcmd->set_rxon_chain(priv); |
| 2734 | } |
Abhijeet Kolekar | 4808368 | 2009-04-08 11:26:48 -0700 | [diff] [blame] | 2735 | |
| 2736 | /* during scanning mac80211 will delay channel setting until |
| 2737 | * scan finish with changed = 0 |
| 2738 | */ |
| 2739 | if (!changed || (changed & IEEE80211_CONF_CHANGE_CHANNEL)) { |
| 2740 | if (scan_active) |
| 2741 | goto set_ch_out; |
| 2742 | |
| 2743 | ch = ieee80211_frequency_to_channel(conf->channel->center_freq); |
| 2744 | ch_info = iwl_get_channel_info(priv, conf->channel->band, ch); |
| 2745 | if (!is_channel_valid(ch_info)) { |
| 2746 | IWL_DEBUG_MAC80211(priv, "leave - invalid channel\n"); |
| 2747 | ret = -EINVAL; |
| 2748 | goto set_ch_out; |
| 2749 | } |
| 2750 | |
| 2751 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC && |
| 2752 | !is_channel_ibss(ch_info)) { |
| 2753 | IWL_ERR(priv, "channel %d in band %d not " |
| 2754 | "IBSS channel\n", |
| 2755 | conf->channel->hw_value, conf->channel->band); |
| 2756 | ret = -EINVAL; |
| 2757 | goto set_ch_out; |
| 2758 | } |
| 2759 | |
Abhijeet Kolekar | 4808368 | 2009-04-08 11:26:48 -0700 | [diff] [blame] | 2760 | spin_lock_irqsave(&priv->lock, flags); |
| 2761 | |
Daniel C Halperin | 28bd723 | 2009-08-13 13:30:57 -0700 | [diff] [blame] | 2762 | /* Configure HT40 channels */ |
| 2763 | ht_conf->is_ht = conf_is_ht(conf); |
| 2764 | if (ht_conf->is_ht) { |
| 2765 | if (conf_is_ht40_minus(conf)) { |
| 2766 | ht_conf->extension_chan_offset = |
| 2767 | IEEE80211_HT_PARAM_CHA_SEC_BELOW; |
Johannes Berg | c812ee2 | 2009-09-11 10:38:13 -0700 | [diff] [blame] | 2768 | ht_conf->is_40mhz = true; |
Daniel C Halperin | 28bd723 | 2009-08-13 13:30:57 -0700 | [diff] [blame] | 2769 | } else if (conf_is_ht40_plus(conf)) { |
| 2770 | ht_conf->extension_chan_offset = |
| 2771 | IEEE80211_HT_PARAM_CHA_SEC_ABOVE; |
Johannes Berg | c812ee2 | 2009-09-11 10:38:13 -0700 | [diff] [blame] | 2772 | ht_conf->is_40mhz = true; |
Daniel C Halperin | 28bd723 | 2009-08-13 13:30:57 -0700 | [diff] [blame] | 2773 | } else { |
| 2774 | ht_conf->extension_chan_offset = |
| 2775 | IEEE80211_HT_PARAM_CHA_SEC_NONE; |
Johannes Berg | c812ee2 | 2009-09-11 10:38:13 -0700 | [diff] [blame] | 2776 | ht_conf->is_40mhz = false; |
Daniel C Halperin | 28bd723 | 2009-08-13 13:30:57 -0700 | [diff] [blame] | 2777 | } |
| 2778 | } else |
Johannes Berg | c812ee2 | 2009-09-11 10:38:13 -0700 | [diff] [blame] | 2779 | ht_conf->is_40mhz = false; |
Daniel C Halperin | 28bd723 | 2009-08-13 13:30:57 -0700 | [diff] [blame] | 2780 | /* Default to no protection. Protection mode will later be set |
| 2781 | * from BSS config in iwl_ht_conf */ |
| 2782 | ht_conf->ht_protection = IEEE80211_HT_OP_MODE_PROTECTION_NONE; |
Abhijeet Kolekar | 4808368 | 2009-04-08 11:26:48 -0700 | [diff] [blame] | 2783 | |
| 2784 | /* if we are switching from ht to 2.4 clear flags |
| 2785 | * from any ht related info since 2.4 does not |
| 2786 | * support ht */ |
| 2787 | if ((le16_to_cpu(priv->staging_rxon.channel) != ch)) |
| 2788 | priv->staging_rxon.flags = 0; |
| 2789 | |
Wey-Yi Guy | 098dfde | 2010-02-05 11:40:00 -0800 | [diff] [blame] | 2790 | iwl_set_rxon_ht(priv, ht_conf); |
Abhijeet Kolekar | 4808368 | 2009-04-08 11:26:48 -0700 | [diff] [blame] | 2791 | iwl_set_rxon_channel(priv, conf->channel); |
| 2792 | |
| 2793 | iwl_set_flags_for_band(priv, conf->channel->band); |
| 2794 | spin_unlock_irqrestore(&priv->lock, flags); |
Wey-Yi Guy | 0924e519 | 2009-11-06 14:52:54 -0800 | [diff] [blame] | 2795 | if (iwl_is_associated(priv) && |
| 2796 | (le16_to_cpu(priv->active_rxon.channel) != ch) && |
| 2797 | priv->cfg->ops->lib->set_channel_switch) { |
| 2798 | iwl_set_rate(priv); |
| 2799 | /* |
| 2800 | * at this point, staging_rxon has the |
| 2801 | * configuration for channel switch |
| 2802 | */ |
| 2803 | ret = priv->cfg->ops->lib->set_channel_switch(priv, |
| 2804 | ch); |
| 2805 | if (!ret) { |
| 2806 | iwl_print_rx_config_cmd(priv); |
| 2807 | goto out; |
| 2808 | } |
| 2809 | priv->switch_rxon.switch_in_progress = false; |
| 2810 | } |
Abhijeet Kolekar | 4808368 | 2009-04-08 11:26:48 -0700 | [diff] [blame] | 2811 | set_ch_out: |
| 2812 | /* The list of supported rates and rate mask can be different |
| 2813 | * for each band; since the band may have changed, reset |
| 2814 | * the rate mask to what mac80211 lists */ |
| 2815 | iwl_set_rate(priv); |
| 2816 | } |
| 2817 | |
Johannes Berg | 78f5fb7 | 2009-09-25 14:24:27 -0700 | [diff] [blame] | 2818 | if (changed & (IEEE80211_CONF_CHANGE_PS | |
| 2819 | IEEE80211_CONF_CHANGE_IDLE)) { |
Johannes Berg | e312c24 | 2009-08-07 15:41:51 -0700 | [diff] [blame] | 2820 | ret = iwl_power_update_mode(priv, false); |
Abhijeet Kolekar | 4808368 | 2009-04-08 11:26:48 -0700 | [diff] [blame] | 2821 | if (ret) |
Johannes Berg | e312c24 | 2009-08-07 15:41:51 -0700 | [diff] [blame] | 2822 | IWL_DEBUG_MAC80211(priv, "Error setting sleep level\n"); |
Abhijeet Kolekar | 4808368 | 2009-04-08 11:26:48 -0700 | [diff] [blame] | 2823 | } |
| 2824 | |
| 2825 | if (changed & IEEE80211_CONF_CHANGE_POWER) { |
| 2826 | IWL_DEBUG_MAC80211(priv, "TX Power old=%d new=%d\n", |
| 2827 | priv->tx_power_user_lmt, conf->power_level); |
| 2828 | |
| 2829 | iwl_set_tx_power(priv, conf->power_level, false); |
| 2830 | } |
| 2831 | |
Mohamed Abbas | 0cf4c01 | 2009-04-20 14:37:04 -0700 | [diff] [blame] | 2832 | if (!iwl_is_ready(priv)) { |
| 2833 | IWL_DEBUG_MAC80211(priv, "leave - not ready\n"); |
| 2834 | goto out; |
| 2835 | } |
| 2836 | |
Abhijeet Kolekar | 4808368 | 2009-04-08 11:26:48 -0700 | [diff] [blame] | 2837 | if (scan_active) |
| 2838 | goto out; |
| 2839 | |
| 2840 | if (memcmp(&priv->active_rxon, |
| 2841 | &priv->staging_rxon, sizeof(priv->staging_rxon))) |
| 2842 | iwlcore_commit_rxon(priv); |
| 2843 | else |
| 2844 | IWL_DEBUG_INFO(priv, "Not re-sending same RXON configuration.\n"); |
| 2845 | |
| 2846 | |
| 2847 | out: |
| 2848 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
| 2849 | mutex_unlock(&priv->mutex); |
| 2850 | return ret; |
| 2851 | } |
| 2852 | EXPORT_SYMBOL(iwl_mac_config); |
| 2853 | |
Abhijeet Kolekar | bd56426 | 2009-04-08 11:26:52 -0700 | [diff] [blame] | 2854 | void iwl_mac_reset_tsf(struct ieee80211_hw *hw) |
| 2855 | { |
| 2856 | struct iwl_priv *priv = hw->priv; |
| 2857 | unsigned long flags; |
| 2858 | |
| 2859 | mutex_lock(&priv->mutex); |
| 2860 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
| 2861 | |
| 2862 | spin_lock_irqsave(&priv->lock, flags); |
Johannes Berg | fad95bf | 2009-09-11 10:38:15 -0700 | [diff] [blame] | 2863 | memset(&priv->current_ht_config, 0, sizeof(struct iwl_ht_config)); |
Abhijeet Kolekar | bd56426 | 2009-04-08 11:26:52 -0700 | [diff] [blame] | 2864 | spin_unlock_irqrestore(&priv->lock, flags); |
| 2865 | |
| 2866 | iwl_reset_qos(priv); |
| 2867 | |
| 2868 | spin_lock_irqsave(&priv->lock, flags); |
| 2869 | priv->assoc_id = 0; |
| 2870 | priv->assoc_capability = 0; |
| 2871 | priv->assoc_station_added = 0; |
| 2872 | |
| 2873 | /* new association get rid of ibss beacon skb */ |
| 2874 | if (priv->ibss_beacon) |
| 2875 | dev_kfree_skb(priv->ibss_beacon); |
| 2876 | |
| 2877 | priv->ibss_beacon = NULL; |
| 2878 | |
Johannes Berg | 57c4d7b | 2009-04-23 16:10:04 +0200 | [diff] [blame] | 2879 | priv->beacon_int = priv->vif->bss_conf.beacon_int; |
Abhijeet Kolekar | bd56426 | 2009-04-08 11:26:52 -0700 | [diff] [blame] | 2880 | priv->timestamp = 0; |
| 2881 | if ((priv->iw_mode == NL80211_IFTYPE_STATION)) |
| 2882 | priv->beacon_int = 0; |
| 2883 | |
| 2884 | spin_unlock_irqrestore(&priv->lock, flags); |
| 2885 | |
| 2886 | if (!iwl_is_ready_rf(priv)) { |
| 2887 | IWL_DEBUG_MAC80211(priv, "leave - not ready\n"); |
| 2888 | mutex_unlock(&priv->mutex); |
| 2889 | return; |
| 2890 | } |
| 2891 | |
| 2892 | /* we are restarting association process |
| 2893 | * clear RXON_FILTER_ASSOC_MSK bit |
| 2894 | */ |
| 2895 | if (priv->iw_mode != NL80211_IFTYPE_AP) { |
| 2896 | iwl_scan_cancel_timeout(priv, 100); |
| 2897 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
| 2898 | iwlcore_commit_rxon(priv); |
| 2899 | } |
| 2900 | |
Abhijeet Kolekar | bd56426 | 2009-04-08 11:26:52 -0700 | [diff] [blame] | 2901 | if (priv->iw_mode != NL80211_IFTYPE_ADHOC) { |
Abhijeet Kolekar | bd56426 | 2009-04-08 11:26:52 -0700 | [diff] [blame] | 2902 | IWL_DEBUG_MAC80211(priv, "leave - not in IBSS\n"); |
| 2903 | mutex_unlock(&priv->mutex); |
| 2904 | return; |
| 2905 | } |
| 2906 | |
| 2907 | iwl_set_rate(priv); |
| 2908 | |
| 2909 | mutex_unlock(&priv->mutex); |
| 2910 | |
| 2911 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
| 2912 | } |
| 2913 | EXPORT_SYMBOL(iwl_mac_reset_tsf); |
| 2914 | |
Wey-Yi Guy | 88804e2 | 2009-10-09 13:20:28 -0700 | [diff] [blame] | 2915 | int iwl_alloc_txq_mem(struct iwl_priv *priv) |
| 2916 | { |
| 2917 | if (!priv->txq) |
| 2918 | priv->txq = kzalloc( |
| 2919 | sizeof(struct iwl_tx_queue) * priv->cfg->num_of_queues, |
| 2920 | GFP_KERNEL); |
| 2921 | if (!priv->txq) { |
| 2922 | IWL_ERR(priv, "Not enough memory for txq \n"); |
| 2923 | return -ENOMEM; |
| 2924 | } |
| 2925 | return 0; |
| 2926 | } |
| 2927 | EXPORT_SYMBOL(iwl_alloc_txq_mem); |
| 2928 | |
| 2929 | void iwl_free_txq_mem(struct iwl_priv *priv) |
| 2930 | { |
| 2931 | kfree(priv->txq); |
| 2932 | priv->txq = NULL; |
| 2933 | } |
| 2934 | EXPORT_SYMBOL(iwl_free_txq_mem); |
| 2935 | |
Wey-Yi Guy | 1933ac4 | 2009-10-30 14:36:18 -0700 | [diff] [blame] | 2936 | int iwl_send_wimax_coex(struct iwl_priv *priv) |
| 2937 | { |
| 2938 | struct iwl_wimax_coex_cmd uninitialized_var(coex_cmd); |
| 2939 | |
| 2940 | if (priv->cfg->support_wimax_coexist) { |
| 2941 | /* UnMask wake up src at associated sleep */ |
| 2942 | coex_cmd.flags |= COEX_FLAGS_ASSOC_WA_UNMASK_MSK; |
| 2943 | |
| 2944 | /* UnMask wake up src at unassociated sleep */ |
| 2945 | coex_cmd.flags |= COEX_FLAGS_UNASSOC_WA_UNMASK_MSK; |
| 2946 | memcpy(coex_cmd.sta_prio, cu_priorities, |
| 2947 | sizeof(struct iwl_wimax_coex_event_entry) * |
| 2948 | COEX_NUM_OF_EVENTS); |
| 2949 | |
| 2950 | /* enabling the coexistence feature */ |
| 2951 | coex_cmd.flags |= COEX_FLAGS_COEX_ENABLE_MSK; |
| 2952 | |
| 2953 | /* enabling the priorities tables */ |
| 2954 | coex_cmd.flags |= COEX_FLAGS_STA_TABLE_VALID_MSK; |
| 2955 | } else { |
| 2956 | /* coexistence is disabled */ |
| 2957 | memset(&coex_cmd, 0, sizeof(coex_cmd)); |
| 2958 | } |
| 2959 | return iwl_send_cmd_pdu(priv, COEX_PRIORITY_TABLE_CMD, |
| 2960 | sizeof(coex_cmd), &coex_cmd); |
| 2961 | } |
| 2962 | EXPORT_SYMBOL(iwl_send_wimax_coex); |
| 2963 | |
Wey-Yi Guy | 20594eb | 2009-08-07 15:41:39 -0700 | [diff] [blame] | 2964 | #ifdef CONFIG_IWLWIFI_DEBUGFS |
| 2965 | |
| 2966 | #define IWL_TRAFFIC_DUMP_SIZE (IWL_TRAFFIC_ENTRY_SIZE * IWL_TRAFFIC_ENTRIES) |
| 2967 | |
| 2968 | void iwl_reset_traffic_log(struct iwl_priv *priv) |
| 2969 | { |
| 2970 | priv->tx_traffic_idx = 0; |
| 2971 | priv->rx_traffic_idx = 0; |
| 2972 | if (priv->tx_traffic) |
| 2973 | memset(priv->tx_traffic, 0, IWL_TRAFFIC_DUMP_SIZE); |
| 2974 | if (priv->rx_traffic) |
| 2975 | memset(priv->rx_traffic, 0, IWL_TRAFFIC_DUMP_SIZE); |
| 2976 | } |
| 2977 | |
| 2978 | int iwl_alloc_traffic_mem(struct iwl_priv *priv) |
| 2979 | { |
| 2980 | u32 traffic_size = IWL_TRAFFIC_DUMP_SIZE; |
| 2981 | |
| 2982 | if (iwl_debug_level & IWL_DL_TX) { |
| 2983 | if (!priv->tx_traffic) { |
| 2984 | priv->tx_traffic = |
| 2985 | kzalloc(traffic_size, GFP_KERNEL); |
| 2986 | if (!priv->tx_traffic) |
| 2987 | return -ENOMEM; |
| 2988 | } |
| 2989 | } |
| 2990 | if (iwl_debug_level & IWL_DL_RX) { |
| 2991 | if (!priv->rx_traffic) { |
| 2992 | priv->rx_traffic = |
| 2993 | kzalloc(traffic_size, GFP_KERNEL); |
| 2994 | if (!priv->rx_traffic) |
| 2995 | return -ENOMEM; |
| 2996 | } |
| 2997 | } |
| 2998 | iwl_reset_traffic_log(priv); |
| 2999 | return 0; |
| 3000 | } |
| 3001 | EXPORT_SYMBOL(iwl_alloc_traffic_mem); |
| 3002 | |
| 3003 | void iwl_free_traffic_mem(struct iwl_priv *priv) |
| 3004 | { |
| 3005 | kfree(priv->tx_traffic); |
| 3006 | priv->tx_traffic = NULL; |
| 3007 | |
| 3008 | kfree(priv->rx_traffic); |
| 3009 | priv->rx_traffic = NULL; |
| 3010 | } |
| 3011 | EXPORT_SYMBOL(iwl_free_traffic_mem); |
| 3012 | |
| 3013 | void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv, |
| 3014 | u16 length, struct ieee80211_hdr *header) |
| 3015 | { |
| 3016 | __le16 fc; |
| 3017 | u16 len; |
| 3018 | |
| 3019 | if (likely(!(iwl_debug_level & IWL_DL_TX))) |
| 3020 | return; |
| 3021 | |
| 3022 | if (!priv->tx_traffic) |
| 3023 | return; |
| 3024 | |
| 3025 | fc = header->frame_control; |
| 3026 | if (ieee80211_is_data(fc)) { |
| 3027 | len = (length > IWL_TRAFFIC_ENTRY_SIZE) |
| 3028 | ? IWL_TRAFFIC_ENTRY_SIZE : length; |
| 3029 | memcpy((priv->tx_traffic + |
| 3030 | (priv->tx_traffic_idx * IWL_TRAFFIC_ENTRY_SIZE)), |
| 3031 | header, len); |
| 3032 | priv->tx_traffic_idx = |
| 3033 | (priv->tx_traffic_idx + 1) % IWL_TRAFFIC_ENTRIES; |
| 3034 | } |
| 3035 | } |
| 3036 | EXPORT_SYMBOL(iwl_dbg_log_tx_data_frame); |
| 3037 | |
| 3038 | void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv, |
| 3039 | u16 length, struct ieee80211_hdr *header) |
| 3040 | { |
| 3041 | __le16 fc; |
| 3042 | u16 len; |
| 3043 | |
| 3044 | if (likely(!(iwl_debug_level & IWL_DL_RX))) |
| 3045 | return; |
| 3046 | |
| 3047 | if (!priv->rx_traffic) |
| 3048 | return; |
| 3049 | |
| 3050 | fc = header->frame_control; |
| 3051 | if (ieee80211_is_data(fc)) { |
| 3052 | len = (length > IWL_TRAFFIC_ENTRY_SIZE) |
| 3053 | ? IWL_TRAFFIC_ENTRY_SIZE : length; |
| 3054 | memcpy((priv->rx_traffic + |
| 3055 | (priv->rx_traffic_idx * IWL_TRAFFIC_ENTRY_SIZE)), |
| 3056 | header, len); |
| 3057 | priv->rx_traffic_idx = |
| 3058 | (priv->rx_traffic_idx + 1) % IWL_TRAFFIC_ENTRIES; |
| 3059 | } |
| 3060 | } |
| 3061 | EXPORT_SYMBOL(iwl_dbg_log_rx_data_frame); |
Wey-Yi Guy | 22fdf3c | 2009-08-07 15:41:40 -0700 | [diff] [blame] | 3062 | |
| 3063 | const char *get_mgmt_string(int cmd) |
| 3064 | { |
| 3065 | switch (cmd) { |
| 3066 | IWL_CMD(MANAGEMENT_ASSOC_REQ); |
| 3067 | IWL_CMD(MANAGEMENT_ASSOC_RESP); |
| 3068 | IWL_CMD(MANAGEMENT_REASSOC_REQ); |
| 3069 | IWL_CMD(MANAGEMENT_REASSOC_RESP); |
| 3070 | IWL_CMD(MANAGEMENT_PROBE_REQ); |
| 3071 | IWL_CMD(MANAGEMENT_PROBE_RESP); |
| 3072 | IWL_CMD(MANAGEMENT_BEACON); |
| 3073 | IWL_CMD(MANAGEMENT_ATIM); |
| 3074 | IWL_CMD(MANAGEMENT_DISASSOC); |
| 3075 | IWL_CMD(MANAGEMENT_AUTH); |
| 3076 | IWL_CMD(MANAGEMENT_DEAUTH); |
| 3077 | IWL_CMD(MANAGEMENT_ACTION); |
| 3078 | default: |
| 3079 | return "UNKNOWN"; |
| 3080 | |
| 3081 | } |
| 3082 | } |
| 3083 | |
| 3084 | const char *get_ctrl_string(int cmd) |
| 3085 | { |
| 3086 | switch (cmd) { |
| 3087 | IWL_CMD(CONTROL_BACK_REQ); |
| 3088 | IWL_CMD(CONTROL_BACK); |
| 3089 | IWL_CMD(CONTROL_PSPOLL); |
| 3090 | IWL_CMD(CONTROL_RTS); |
| 3091 | IWL_CMD(CONTROL_CTS); |
| 3092 | IWL_CMD(CONTROL_ACK); |
| 3093 | IWL_CMD(CONTROL_CFEND); |
| 3094 | IWL_CMD(CONTROL_CFENDACK); |
| 3095 | default: |
| 3096 | return "UNKNOWN"; |
| 3097 | |
| 3098 | } |
| 3099 | } |
| 3100 | |
Wey-Yi Guy | 7163b8a | 2009-11-20 12:04:56 -0800 | [diff] [blame] | 3101 | void iwl_clear_traffic_stats(struct iwl_priv *priv) |
Wey-Yi Guy | 22fdf3c | 2009-08-07 15:41:40 -0700 | [diff] [blame] | 3102 | { |
| 3103 | memset(&priv->tx_stats, 0, sizeof(struct traffic_stats)); |
Wey-Yi Guy | 22fdf3c | 2009-08-07 15:41:40 -0700 | [diff] [blame] | 3104 | memset(&priv->rx_stats, 0, sizeof(struct traffic_stats)); |
Wey-Yi Guy | 7163b8a | 2009-11-20 12:04:56 -0800 | [diff] [blame] | 3105 | priv->led_tpt = 0; |
Wey-Yi Guy | 22fdf3c | 2009-08-07 15:41:40 -0700 | [diff] [blame] | 3106 | } |
| 3107 | |
| 3108 | /* |
| 3109 | * if CONFIG_IWLWIFI_DEBUGFS defined, iwl_update_stats function will |
| 3110 | * record all the MGMT, CTRL and DATA pkt for both TX and Rx pass. |
| 3111 | * Use debugFs to display the rx/rx_statistics |
| 3112 | * if CONFIG_IWLWIFI_DEBUGFS not being defined, then no MGMT and CTRL |
| 3113 | * information will be recorded, but DATA pkt still will be recorded |
| 3114 | * for the reason of iwl_led.c need to control the led blinking based on |
| 3115 | * number of tx and rx data. |
| 3116 | * |
| 3117 | */ |
| 3118 | void iwl_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc, u16 len) |
| 3119 | { |
| 3120 | struct traffic_stats *stats; |
| 3121 | |
| 3122 | if (is_tx) |
| 3123 | stats = &priv->tx_stats; |
| 3124 | else |
| 3125 | stats = &priv->rx_stats; |
| 3126 | |
| 3127 | if (ieee80211_is_mgmt(fc)) { |
| 3128 | switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) { |
| 3129 | case cpu_to_le16(IEEE80211_STYPE_ASSOC_REQ): |
| 3130 | stats->mgmt[MANAGEMENT_ASSOC_REQ]++; |
| 3131 | break; |
| 3132 | case cpu_to_le16(IEEE80211_STYPE_ASSOC_RESP): |
| 3133 | stats->mgmt[MANAGEMENT_ASSOC_RESP]++; |
| 3134 | break; |
| 3135 | case cpu_to_le16(IEEE80211_STYPE_REASSOC_REQ): |
| 3136 | stats->mgmt[MANAGEMENT_REASSOC_REQ]++; |
| 3137 | break; |
| 3138 | case cpu_to_le16(IEEE80211_STYPE_REASSOC_RESP): |
| 3139 | stats->mgmt[MANAGEMENT_REASSOC_RESP]++; |
| 3140 | break; |
| 3141 | case cpu_to_le16(IEEE80211_STYPE_PROBE_REQ): |
| 3142 | stats->mgmt[MANAGEMENT_PROBE_REQ]++; |
| 3143 | break; |
| 3144 | case cpu_to_le16(IEEE80211_STYPE_PROBE_RESP): |
| 3145 | stats->mgmt[MANAGEMENT_PROBE_RESP]++; |
| 3146 | break; |
| 3147 | case cpu_to_le16(IEEE80211_STYPE_BEACON): |
| 3148 | stats->mgmt[MANAGEMENT_BEACON]++; |
| 3149 | break; |
| 3150 | case cpu_to_le16(IEEE80211_STYPE_ATIM): |
| 3151 | stats->mgmt[MANAGEMENT_ATIM]++; |
| 3152 | break; |
| 3153 | case cpu_to_le16(IEEE80211_STYPE_DISASSOC): |
| 3154 | stats->mgmt[MANAGEMENT_DISASSOC]++; |
| 3155 | break; |
| 3156 | case cpu_to_le16(IEEE80211_STYPE_AUTH): |
| 3157 | stats->mgmt[MANAGEMENT_AUTH]++; |
| 3158 | break; |
| 3159 | case cpu_to_le16(IEEE80211_STYPE_DEAUTH): |
| 3160 | stats->mgmt[MANAGEMENT_DEAUTH]++; |
| 3161 | break; |
| 3162 | case cpu_to_le16(IEEE80211_STYPE_ACTION): |
| 3163 | stats->mgmt[MANAGEMENT_ACTION]++; |
| 3164 | break; |
| 3165 | } |
| 3166 | } else if (ieee80211_is_ctl(fc)) { |
| 3167 | switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) { |
| 3168 | case cpu_to_le16(IEEE80211_STYPE_BACK_REQ): |
| 3169 | stats->ctrl[CONTROL_BACK_REQ]++; |
| 3170 | break; |
| 3171 | case cpu_to_le16(IEEE80211_STYPE_BACK): |
| 3172 | stats->ctrl[CONTROL_BACK]++; |
| 3173 | break; |
| 3174 | case cpu_to_le16(IEEE80211_STYPE_PSPOLL): |
| 3175 | stats->ctrl[CONTROL_PSPOLL]++; |
| 3176 | break; |
| 3177 | case cpu_to_le16(IEEE80211_STYPE_RTS): |
| 3178 | stats->ctrl[CONTROL_RTS]++; |
| 3179 | break; |
| 3180 | case cpu_to_le16(IEEE80211_STYPE_CTS): |
| 3181 | stats->ctrl[CONTROL_CTS]++; |
| 3182 | break; |
| 3183 | case cpu_to_le16(IEEE80211_STYPE_ACK): |
| 3184 | stats->ctrl[CONTROL_ACK]++; |
| 3185 | break; |
| 3186 | case cpu_to_le16(IEEE80211_STYPE_CFEND): |
| 3187 | stats->ctrl[CONTROL_CFEND]++; |
| 3188 | break; |
| 3189 | case cpu_to_le16(IEEE80211_STYPE_CFENDACK): |
| 3190 | stats->ctrl[CONTROL_CFENDACK]++; |
| 3191 | break; |
| 3192 | } |
| 3193 | } else { |
| 3194 | /* data */ |
| 3195 | stats->data_cnt++; |
| 3196 | stats->data_bytes += len; |
| 3197 | } |
Wey-Yi Guy | d5f4cf7 | 2009-11-20 12:04:54 -0800 | [diff] [blame] | 3198 | iwl_leds_background(priv); |
Wey-Yi Guy | 22fdf3c | 2009-08-07 15:41:40 -0700 | [diff] [blame] | 3199 | } |
| 3200 | EXPORT_SYMBOL(iwl_update_stats); |
Wey-Yi Guy | 20594eb | 2009-08-07 15:41:39 -0700 | [diff] [blame] | 3201 | #endif |
| 3202 | |
Wey-Yi Guy | 696bdee | 2009-12-10 14:37:25 -0800 | [diff] [blame] | 3203 | const static char *get_csr_string(int cmd) |
| 3204 | { |
| 3205 | switch (cmd) { |
| 3206 | IWL_CMD(CSR_HW_IF_CONFIG_REG); |
| 3207 | IWL_CMD(CSR_INT_COALESCING); |
| 3208 | IWL_CMD(CSR_INT); |
| 3209 | IWL_CMD(CSR_INT_MASK); |
| 3210 | IWL_CMD(CSR_FH_INT_STATUS); |
| 3211 | IWL_CMD(CSR_GPIO_IN); |
| 3212 | IWL_CMD(CSR_RESET); |
| 3213 | IWL_CMD(CSR_GP_CNTRL); |
| 3214 | IWL_CMD(CSR_HW_REV); |
| 3215 | IWL_CMD(CSR_EEPROM_REG); |
| 3216 | IWL_CMD(CSR_EEPROM_GP); |
| 3217 | IWL_CMD(CSR_OTP_GP_REG); |
| 3218 | IWL_CMD(CSR_GIO_REG); |
| 3219 | IWL_CMD(CSR_GP_UCODE_REG); |
| 3220 | IWL_CMD(CSR_GP_DRIVER_REG); |
| 3221 | IWL_CMD(CSR_UCODE_DRV_GP1); |
| 3222 | IWL_CMD(CSR_UCODE_DRV_GP2); |
| 3223 | IWL_CMD(CSR_LED_REG); |
| 3224 | IWL_CMD(CSR_DRAM_INT_TBL_REG); |
| 3225 | IWL_CMD(CSR_GIO_CHICKEN_BITS); |
| 3226 | IWL_CMD(CSR_ANA_PLL_CFG); |
| 3227 | IWL_CMD(CSR_HW_REV_WA_REG); |
| 3228 | IWL_CMD(CSR_DBG_HPET_MEM_REG); |
| 3229 | default: |
| 3230 | return "UNKNOWN"; |
| 3231 | |
| 3232 | } |
| 3233 | } |
| 3234 | |
| 3235 | void iwl_dump_csr(struct iwl_priv *priv) |
| 3236 | { |
| 3237 | int i; |
| 3238 | u32 csr_tbl[] = { |
| 3239 | CSR_HW_IF_CONFIG_REG, |
| 3240 | CSR_INT_COALESCING, |
| 3241 | CSR_INT, |
| 3242 | CSR_INT_MASK, |
| 3243 | CSR_FH_INT_STATUS, |
| 3244 | CSR_GPIO_IN, |
| 3245 | CSR_RESET, |
| 3246 | CSR_GP_CNTRL, |
| 3247 | CSR_HW_REV, |
| 3248 | CSR_EEPROM_REG, |
| 3249 | CSR_EEPROM_GP, |
| 3250 | CSR_OTP_GP_REG, |
| 3251 | CSR_GIO_REG, |
| 3252 | CSR_GP_UCODE_REG, |
| 3253 | CSR_GP_DRIVER_REG, |
| 3254 | CSR_UCODE_DRV_GP1, |
| 3255 | CSR_UCODE_DRV_GP2, |
| 3256 | CSR_LED_REG, |
| 3257 | CSR_DRAM_INT_TBL_REG, |
| 3258 | CSR_GIO_CHICKEN_BITS, |
| 3259 | CSR_ANA_PLL_CFG, |
| 3260 | CSR_HW_REV_WA_REG, |
| 3261 | CSR_DBG_HPET_MEM_REG |
| 3262 | }; |
| 3263 | IWL_ERR(priv, "CSR values:\n"); |
| 3264 | IWL_ERR(priv, "(2nd byte of CSR_INT_COALESCING is " |
| 3265 | "CSR_INT_PERIODIC_REG)\n"); |
| 3266 | for (i = 0; i < ARRAY_SIZE(csr_tbl); i++) { |
| 3267 | IWL_ERR(priv, " %25s: 0X%08x\n", |
| 3268 | get_csr_string(csr_tbl[i]), |
| 3269 | iwl_read32(priv, csr_tbl[i])); |
| 3270 | } |
| 3271 | } |
| 3272 | EXPORT_SYMBOL(iwl_dump_csr); |
| 3273 | |
Wey-Yi Guy | 1b3eb82 | 2010-01-15 13:43:39 -0800 | [diff] [blame] | 3274 | const static char *get_fh_string(int cmd) |
| 3275 | { |
| 3276 | switch (cmd) { |
| 3277 | IWL_CMD(FH_RSCSR_CHNL0_STTS_WPTR_REG); |
| 3278 | IWL_CMD(FH_RSCSR_CHNL0_RBDCB_BASE_REG); |
| 3279 | IWL_CMD(FH_RSCSR_CHNL0_WPTR); |
| 3280 | IWL_CMD(FH_MEM_RCSR_CHNL0_CONFIG_REG); |
| 3281 | IWL_CMD(FH_MEM_RSSR_SHARED_CTRL_REG); |
| 3282 | IWL_CMD(FH_MEM_RSSR_RX_STATUS_REG); |
| 3283 | IWL_CMD(FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV); |
| 3284 | IWL_CMD(FH_TSSR_TX_STATUS_REG); |
| 3285 | IWL_CMD(FH_TSSR_TX_ERROR_REG); |
| 3286 | default: |
| 3287 | return "UNKNOWN"; |
| 3288 | |
| 3289 | } |
| 3290 | } |
| 3291 | |
| 3292 | int iwl_dump_fh(struct iwl_priv *priv, char **buf, bool display) |
| 3293 | { |
| 3294 | int i; |
| 3295 | #ifdef CONFIG_IWLWIFI_DEBUG |
| 3296 | int pos = 0; |
| 3297 | size_t bufsz = 0; |
| 3298 | #endif |
| 3299 | u32 fh_tbl[] = { |
| 3300 | FH_RSCSR_CHNL0_STTS_WPTR_REG, |
| 3301 | FH_RSCSR_CHNL0_RBDCB_BASE_REG, |
| 3302 | FH_RSCSR_CHNL0_WPTR, |
| 3303 | FH_MEM_RCSR_CHNL0_CONFIG_REG, |
| 3304 | FH_MEM_RSSR_SHARED_CTRL_REG, |
| 3305 | FH_MEM_RSSR_RX_STATUS_REG, |
| 3306 | FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV, |
| 3307 | FH_TSSR_TX_STATUS_REG, |
| 3308 | FH_TSSR_TX_ERROR_REG |
| 3309 | }; |
| 3310 | #ifdef CONFIG_IWLWIFI_DEBUG |
| 3311 | if (display) { |
| 3312 | bufsz = ARRAY_SIZE(fh_tbl) * 48 + 40; |
| 3313 | *buf = kmalloc(bufsz, GFP_KERNEL); |
| 3314 | if (!*buf) |
| 3315 | return -ENOMEM; |
| 3316 | pos += scnprintf(*buf + pos, bufsz - pos, |
| 3317 | "FH register values:\n"); |
| 3318 | for (i = 0; i < ARRAY_SIZE(fh_tbl); i++) { |
| 3319 | pos += scnprintf(*buf + pos, bufsz - pos, |
| 3320 | " %34s: 0X%08x\n", |
| 3321 | get_fh_string(fh_tbl[i]), |
| 3322 | iwl_read_direct32(priv, fh_tbl[i])); |
| 3323 | } |
| 3324 | return pos; |
| 3325 | } |
| 3326 | #endif |
| 3327 | IWL_ERR(priv, "FH register values:\n"); |
| 3328 | for (i = 0; i < ARRAY_SIZE(fh_tbl); i++) { |
| 3329 | IWL_ERR(priv, " %34s: 0X%08x\n", |
| 3330 | get_fh_string(fh_tbl[i]), |
| 3331 | iwl_read_direct32(priv, fh_tbl[i])); |
| 3332 | } |
| 3333 | return 0; |
| 3334 | } |
| 3335 | EXPORT_SYMBOL(iwl_dump_fh); |
| 3336 | |
Wey-Yi Guy | a93e797 | 2010-02-03 11:47:19 -0800 | [diff] [blame] | 3337 | static void iwl_force_rf_reset(struct iwl_priv *priv) |
Wey-Yi Guy | afbdd69 | 2010-01-22 14:22:43 -0800 | [diff] [blame] | 3338 | { |
| 3339 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
| 3340 | return; |
| 3341 | |
| 3342 | if (!iwl_is_associated(priv)) { |
| 3343 | IWL_DEBUG_SCAN(priv, "force reset rejected: not associated\n"); |
| 3344 | return; |
| 3345 | } |
| 3346 | /* |
| 3347 | * There is no easy and better way to force reset the radio, |
| 3348 | * the only known method is switching channel which will force to |
| 3349 | * reset and tune the radio. |
| 3350 | * Use internal short scan (single channel) operation to should |
| 3351 | * achieve this objective. |
| 3352 | * Driver should reset the radio when number of consecutive missed |
| 3353 | * beacon, or any other uCode error condition detected. |
| 3354 | */ |
| 3355 | IWL_DEBUG_INFO(priv, "perform radio reset.\n"); |
| 3356 | iwl_internal_short_hw_scan(priv); |
| 3357 | return; |
| 3358 | } |
Wey-Yi Guy | a93e797 | 2010-02-03 11:47:19 -0800 | [diff] [blame] | 3359 | |
| 3360 | #define IWL_DELAY_NEXT_FORCE_RESET (HZ*3) |
| 3361 | |
| 3362 | int iwl_force_reset(struct iwl_priv *priv, int mode) |
| 3363 | { |
| 3364 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
| 3365 | return -EINVAL; |
| 3366 | |
| 3367 | if (priv->last_force_reset_jiffies && |
| 3368 | time_after(priv->last_force_reset_jiffies + |
| 3369 | IWL_DELAY_NEXT_FORCE_RESET, jiffies)) { |
| 3370 | IWL_DEBUG_INFO(priv, "force reset rejected\n"); |
| 3371 | return -EAGAIN; |
| 3372 | } |
| 3373 | |
| 3374 | IWL_DEBUG_INFO(priv, "perform force reset (%d)\n", mode); |
| 3375 | |
| 3376 | switch (mode) { |
| 3377 | case IWL_RF_RESET: |
| 3378 | iwl_force_rf_reset(priv); |
| 3379 | break; |
| 3380 | case IWL_FW_RESET: |
| 3381 | IWL_ERR(priv, "On demand firmware reload\n"); |
| 3382 | /* Set the FW error flag -- cleared on iwl_down */ |
| 3383 | set_bit(STATUS_FW_ERROR, &priv->status); |
| 3384 | wake_up_interruptible(&priv->wait_command_queue); |
| 3385 | /* |
| 3386 | * Keep the restart process from trying to send host |
| 3387 | * commands by clearing the INIT status bit |
| 3388 | */ |
| 3389 | clear_bit(STATUS_READY, &priv->status); |
| 3390 | queue_work(priv->workqueue, &priv->restart); |
| 3391 | break; |
| 3392 | default: |
| 3393 | IWL_DEBUG_INFO(priv, "invalid reset request.\n"); |
| 3394 | return -EINVAL; |
| 3395 | } |
| 3396 | priv->last_force_reset_jiffies = jiffies; |
| 3397 | |
| 3398 | return 0; |
| 3399 | } |
Wey-Yi Guy | afbdd69 | 2010-01-22 14:22:43 -0800 | [diff] [blame] | 3400 | |
Wey-Yi Guy | 6da3a13 | 2009-03-26 10:14:08 -0700 | [diff] [blame] | 3401 | #ifdef CONFIG_PM |
| 3402 | |
| 3403 | int iwl_pci_suspend(struct pci_dev *pdev, pm_message_t state) |
| 3404 | { |
| 3405 | struct iwl_priv *priv = pci_get_drvdata(pdev); |
| 3406 | |
| 3407 | /* |
| 3408 | * This function is called when system goes into suspend state |
| 3409 | * mac80211 will call iwl_mac_stop() from the mac80211 suspend function |
| 3410 | * first but since iwl_mac_stop() has no knowledge of who the caller is, |
| 3411 | * it will not call apm_ops.stop() to stop the DMA operation. |
| 3412 | * Calling apm_ops.stop here to make sure we stop the DMA. |
| 3413 | */ |
| 3414 | priv->cfg->ops->lib->apm_ops.stop(priv); |
| 3415 | |
| 3416 | pci_save_state(pdev); |
| 3417 | pci_disable_device(pdev); |
| 3418 | pci_set_power_state(pdev, PCI_D3hot); |
| 3419 | |
| 3420 | return 0; |
| 3421 | } |
| 3422 | EXPORT_SYMBOL(iwl_pci_suspend); |
| 3423 | |
| 3424 | int iwl_pci_resume(struct pci_dev *pdev) |
| 3425 | { |
| 3426 | struct iwl_priv *priv = pci_get_drvdata(pdev); |
| 3427 | int ret; |
| 3428 | |
| 3429 | pci_set_power_state(pdev, PCI_D0); |
| 3430 | ret = pci_enable_device(pdev); |
| 3431 | if (ret) |
| 3432 | return ret; |
| 3433 | pci_restore_state(pdev); |
| 3434 | iwl_enable_interrupts(priv); |
| 3435 | |
| 3436 | return 0; |
| 3437 | } |
| 3438 | EXPORT_SYMBOL(iwl_pci_resume); |
| 3439 | |
| 3440 | #endif /* CONFIG_PM */ |