Assaf Krauss | 34cf6ff | 2008-03-06 10:40:20 -0800 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
| 3 | * This file is provided under a dual BSD/GPLv2 license. When using or |
| 4 | * redistributing this file, you may do so under either license. |
| 5 | * |
| 6 | * GPL LICENSE SUMMARY |
| 7 | * |
| 8 | * Copyright(c) 2008 Intel Corporation. All rights reserved. |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of version 2 of the GNU General Public License as |
| 12 | * published by the Free Software Foundation. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, but |
| 15 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 17 | * General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this program; if not, write to the Free Software |
| 21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, |
| 22 | * USA |
| 23 | * |
| 24 | * The full GNU General Public License is included in this distribution |
| 25 | * in the file called LICENSE.GPL. |
| 26 | * |
| 27 | * Contact Information: |
| 28 | * Tomas Winkler <tomas.winkler@intel.com> |
| 29 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| 30 | * |
| 31 | * BSD LICENSE |
| 32 | * |
| 33 | * Copyright(c) 2005 - 2008 Intel Corporation. All rights reserved. |
| 34 | * All rights reserved. |
| 35 | * |
| 36 | * Redistribution and use in source and binary forms, with or without |
| 37 | * modification, are permitted provided that the following conditions |
| 38 | * are met: |
| 39 | * |
| 40 | * * Redistributions of source code must retain the above copyright |
| 41 | * notice, this list of conditions and the following disclaimer. |
| 42 | * * Redistributions in binary form must reproduce the above copyright |
| 43 | * notice, this list of conditions and the following disclaimer in |
| 44 | * the documentation and/or other materials provided with the |
| 45 | * distribution. |
| 46 | * * Neither the name Intel Corporation nor the names of its |
| 47 | * contributors may be used to endorse or promote products derived |
| 48 | * from this software without specific prior written permission. |
| 49 | * |
| 50 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 51 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 52 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 53 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 54 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 55 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 56 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 57 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 58 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 59 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 60 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 61 | *****************************************************************************/ |
| 62 | |
| 63 | |
| 64 | #include <linux/kernel.h> |
| 65 | #include <linux/module.h> |
Assaf Krauss | 34cf6ff | 2008-03-06 10:40:20 -0800 | [diff] [blame] | 66 | #include <linux/init.h> |
| 67 | |
| 68 | #include <net/mac80211.h> |
| 69 | |
Tomas Winkler | 5a36ba0 | 2008-04-24 11:55:37 -0700 | [diff] [blame] | 70 | #include "iwl-commands.h" |
Tomas Winkler | 3e0d4cb | 2008-04-24 11:55:38 -0700 | [diff] [blame] | 71 | #include "iwl-dev.h" |
Assaf Krauss | 34cf6ff | 2008-03-06 10:40:20 -0800 | [diff] [blame] | 72 | #include "iwl-core.h" |
Tomas Winkler | 0a6857e | 2008-03-12 16:58:49 -0700 | [diff] [blame] | 73 | #include "iwl-debug.h" |
Assaf Krauss | 34cf6ff | 2008-03-06 10:40:20 -0800 | [diff] [blame] | 74 | #include "iwl-eeprom.h" |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 75 | #include "iwl-io.h" |
Assaf Krauss | 34cf6ff | 2008-03-06 10:40:20 -0800 | [diff] [blame] | 76 | |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 77 | /************************** EEPROM BANDS **************************** |
| 78 | * |
| 79 | * The iwl_eeprom_band definitions below provide the mapping from the |
| 80 | * EEPROM contents to the specific channel number supported for each |
| 81 | * band. |
| 82 | * |
| 83 | * For example, iwl_priv->eeprom.band_3_channels[4] from the band_3 |
| 84 | * definition below maps to physical channel 42 in the 5.2GHz spectrum. |
| 85 | * The specific geography and calibration information for that channel |
| 86 | * is contained in the eeprom map itself. |
| 87 | * |
| 88 | * During init, we copy the eeprom information and channel map |
| 89 | * information into priv->channel_info_24/52 and priv->channel_map_24/52 |
| 90 | * |
| 91 | * channel_map_24/52 provides the index in the channel_info array for a |
| 92 | * given channel. We have to have two separate maps as there is channel |
| 93 | * overlap with the 2.4GHz and 5.2GHz spectrum as seen in band_1 and |
| 94 | * band_2 |
| 95 | * |
| 96 | * A value of 0xff stored in the channel_map indicates that the channel |
| 97 | * is not supported by the hardware at all. |
| 98 | * |
| 99 | * A value of 0xfe in the channel_map indicates that the channel is not |
| 100 | * valid for Tx with the current hardware. This means that |
| 101 | * while the system can tune and receive on a given channel, it may not |
| 102 | * be able to associate or transmit any frames on that |
| 103 | * channel. There is no corresponding channel information for that |
| 104 | * entry. |
| 105 | * |
| 106 | *********************************************************************/ |
| 107 | |
| 108 | /* 2.4 GHz */ |
| 109 | const u8 iwl_eeprom_band_1[14] = { |
| 110 | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 |
| 111 | }; |
| 112 | |
| 113 | /* 5.2 GHz bands */ |
| 114 | static const u8 iwl_eeprom_band_2[] = { /* 4915-5080MHz */ |
| 115 | 183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16 |
| 116 | }; |
| 117 | |
| 118 | static const u8 iwl_eeprom_band_3[] = { /* 5170-5320MHz */ |
| 119 | 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64 |
| 120 | }; |
| 121 | |
| 122 | static const u8 iwl_eeprom_band_4[] = { /* 5500-5700MHz */ |
| 123 | 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140 |
| 124 | }; |
| 125 | |
| 126 | static const u8 iwl_eeprom_band_5[] = { /* 5725-5825MHz */ |
| 127 | 145, 149, 153, 157, 161, 165 |
| 128 | }; |
| 129 | |
| 130 | static const u8 iwl_eeprom_band_6[] = { /* 2.4 FAT channel */ |
| 131 | 1, 2, 3, 4, 5, 6, 7 |
| 132 | }; |
| 133 | |
| 134 | static const u8 iwl_eeprom_band_7[] = { /* 5.2 FAT channel */ |
| 135 | 36, 44, 52, 60, 100, 108, 116, 124, 132, 149, 157 |
| 136 | }; |
| 137 | |
Assaf Krauss | 34cf6ff | 2008-03-06 10:40:20 -0800 | [diff] [blame] | 138 | /****************************************************************************** |
| 139 | * |
| 140 | * EEPROM related functions |
| 141 | * |
| 142 | ******************************************************************************/ |
| 143 | |
Tomas Winkler | c79dd5b | 2008-03-12 16:58:50 -0700 | [diff] [blame] | 144 | int iwlcore_eeprom_verify_signature(struct iwl_priv *priv) |
Assaf Krauss | 34cf6ff | 2008-03-06 10:40:20 -0800 | [diff] [blame] | 145 | { |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 146 | u32 gp = iwl_read32(priv, CSR_EEPROM_GP); |
Assaf Krauss | 34cf6ff | 2008-03-06 10:40:20 -0800 | [diff] [blame] | 147 | if ((gp & CSR_EEPROM_GP_VALID_MSK) == CSR_EEPROM_GP_BAD_SIGNATURE) { |
Jiri Slaby | 6f14792 | 2008-08-11 23:49:41 +0200 | [diff] [blame] | 148 | IWL_ERROR("EEPROM not found, EEPROM_GP=0x%08x\n", gp); |
Assaf Krauss | 34cf6ff | 2008-03-06 10:40:20 -0800 | [diff] [blame] | 149 | return -ENOENT; |
| 150 | } |
| 151 | return 0; |
| 152 | } |
| 153 | EXPORT_SYMBOL(iwlcore_eeprom_verify_signature); |
| 154 | |
| 155 | /* |
| 156 | * The device's EEPROM semaphore prevents conflicts between driver and uCode |
| 157 | * when accessing the EEPROM; each access is a series of pulses to/from the |
| 158 | * EEPROM chip, not a single event, so even reads could conflict if they |
| 159 | * weren't arbitrated by the semaphore. |
| 160 | */ |
Tomas Winkler | c79dd5b | 2008-03-12 16:58:50 -0700 | [diff] [blame] | 161 | int iwlcore_eeprom_acquire_semaphore(struct iwl_priv *priv) |
Assaf Krauss | 34cf6ff | 2008-03-06 10:40:20 -0800 | [diff] [blame] | 162 | { |
| 163 | u16 count; |
| 164 | int ret; |
| 165 | |
| 166 | for (count = 0; count < EEPROM_SEM_RETRY_LIMIT; count++) { |
| 167 | /* Request semaphore */ |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 168 | iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG, |
| 169 | CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM); |
Assaf Krauss | 34cf6ff | 2008-03-06 10:40:20 -0800 | [diff] [blame] | 170 | |
| 171 | /* See if we got it */ |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 172 | ret = iwl_poll_bit(priv, CSR_HW_IF_CONFIG_REG, |
| 173 | CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM, |
| 174 | CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM, |
| 175 | EEPROM_SEM_TIMEOUT); |
Assaf Krauss | 34cf6ff | 2008-03-06 10:40:20 -0800 | [diff] [blame] | 176 | if (ret >= 0) { |
| 177 | IWL_DEBUG_IO("Acquired semaphore after %d tries.\n", |
| 178 | count+1); |
| 179 | return ret; |
| 180 | } |
| 181 | } |
| 182 | |
| 183 | return ret; |
| 184 | } |
| 185 | EXPORT_SYMBOL(iwlcore_eeprom_acquire_semaphore); |
| 186 | |
Tomas Winkler | c79dd5b | 2008-03-12 16:58:50 -0700 | [diff] [blame] | 187 | void iwlcore_eeprom_release_semaphore(struct iwl_priv *priv) |
Assaf Krauss | 34cf6ff | 2008-03-06 10:40:20 -0800 | [diff] [blame] | 188 | { |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 189 | iwl_clear_bit(priv, CSR_HW_IF_CONFIG_REG, |
Assaf Krauss | 34cf6ff | 2008-03-06 10:40:20 -0800 | [diff] [blame] | 190 | CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM); |
| 191 | |
| 192 | } |
| 193 | EXPORT_SYMBOL(iwlcore_eeprom_release_semaphore); |
| 194 | |
Tomas Winkler | 073d3f5 | 2008-04-21 15:41:52 -0700 | [diff] [blame] | 195 | const u8 *iwlcore_eeprom_query_addr(const struct iwl_priv *priv, size_t offset) |
| 196 | { |
| 197 | BUG_ON(offset >= priv->cfg->eeprom_size); |
| 198 | return &priv->eeprom[offset]; |
| 199 | } |
| 200 | EXPORT_SYMBOL(iwlcore_eeprom_query_addr); |
Assaf Krauss | 34cf6ff | 2008-03-06 10:40:20 -0800 | [diff] [blame] | 201 | |
| 202 | /** |
| 203 | * iwl_eeprom_init - read EEPROM contents |
| 204 | * |
| 205 | * Load the EEPROM contents from adapter into priv->eeprom |
| 206 | * |
| 207 | * NOTE: This routine uses the non-debug IO access functions. |
| 208 | */ |
Tomas Winkler | c79dd5b | 2008-03-12 16:58:50 -0700 | [diff] [blame] | 209 | int iwl_eeprom_init(struct iwl_priv *priv) |
Assaf Krauss | 34cf6ff | 2008-03-06 10:40:20 -0800 | [diff] [blame] | 210 | { |
Tomas Winkler | 073d3f5 | 2008-04-21 15:41:52 -0700 | [diff] [blame] | 211 | u16 *e; |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 212 | u32 gp = iwl_read32(priv, CSR_EEPROM_GP); |
Assaf Krauss | 34cf6ff | 2008-03-06 10:40:20 -0800 | [diff] [blame] | 213 | u32 r; |
Tomas Winkler | 073d3f5 | 2008-04-21 15:41:52 -0700 | [diff] [blame] | 214 | int sz = priv->cfg->eeprom_size; |
Assaf Krauss | 34cf6ff | 2008-03-06 10:40:20 -0800 | [diff] [blame] | 215 | int ret; |
| 216 | int i; |
| 217 | u16 addr; |
| 218 | |
Tomas Winkler | 073d3f5 | 2008-04-21 15:41:52 -0700 | [diff] [blame] | 219 | /* allocate eeprom */ |
| 220 | priv->eeprom = kzalloc(sz, GFP_KERNEL); |
| 221 | if (!priv->eeprom) { |
| 222 | ret = -ENOMEM; |
| 223 | goto alloc_err; |
| 224 | } |
| 225 | e = (u16 *)priv->eeprom; |
Assaf Krauss | 34cf6ff | 2008-03-06 10:40:20 -0800 | [diff] [blame] | 226 | |
Tomas Winkler | 073d3f5 | 2008-04-21 15:41:52 -0700 | [diff] [blame] | 227 | ret = priv->cfg->ops->lib->eeprom_ops.verify_signature(priv); |
| 228 | if (ret < 0) { |
Jiri Slaby | 6f14792 | 2008-08-11 23:49:41 +0200 | [diff] [blame] | 229 | IWL_ERROR("EEPROM not found, EEPROM_GP=0x%08x\n", gp); |
Tomas Winkler | 073d3f5 | 2008-04-21 15:41:52 -0700 | [diff] [blame] | 230 | ret = -ENOENT; |
| 231 | goto err; |
Assaf Krauss | 34cf6ff | 2008-03-06 10:40:20 -0800 | [diff] [blame] | 232 | } |
| 233 | |
| 234 | /* Make sure driver (instead of uCode) is allowed to read EEPROM */ |
| 235 | ret = priv->cfg->ops->lib->eeprom_ops.acquire_semaphore(priv); |
| 236 | if (ret < 0) { |
| 237 | IWL_ERROR("Failed to acquire EEPROM semaphore.\n"); |
Tomas Winkler | 073d3f5 | 2008-04-21 15:41:52 -0700 | [diff] [blame] | 238 | ret = -ENOENT; |
| 239 | goto err; |
Assaf Krauss | 34cf6ff | 2008-03-06 10:40:20 -0800 | [diff] [blame] | 240 | } |
| 241 | |
| 242 | /* eeprom is an array of 16bit values */ |
| 243 | for (addr = 0; addr < sz; addr += sizeof(u16)) { |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 244 | _iwl_write32(priv, CSR_EEPROM_REG, addr << 1); |
| 245 | _iwl_clear_bit(priv, CSR_EEPROM_REG, CSR_EEPROM_REG_BIT_CMD); |
Assaf Krauss | 34cf6ff | 2008-03-06 10:40:20 -0800 | [diff] [blame] | 246 | |
| 247 | for (i = 0; i < IWL_EEPROM_ACCESS_TIMEOUT; |
| 248 | i += IWL_EEPROM_ACCESS_DELAY) { |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 249 | r = _iwl_read_direct32(priv, CSR_EEPROM_REG); |
Assaf Krauss | 34cf6ff | 2008-03-06 10:40:20 -0800 | [diff] [blame] | 250 | if (r & CSR_EEPROM_REG_READ_VALID_MSK) |
| 251 | break; |
| 252 | udelay(IWL_EEPROM_ACCESS_DELAY); |
| 253 | } |
| 254 | |
| 255 | if (!(r & CSR_EEPROM_REG_READ_VALID_MSK)) { |
Jiri Slaby | 6f14792 | 2008-08-11 23:49:41 +0200 | [diff] [blame] | 256 | IWL_ERROR("Time out reading EEPROM[%d]\n", addr); |
Assaf Krauss | 34cf6ff | 2008-03-06 10:40:20 -0800 | [diff] [blame] | 257 | ret = -ETIMEDOUT; |
| 258 | goto done; |
| 259 | } |
| 260 | e[addr / 2] = le16_to_cpu((__force __le16)(r >> 16)); |
| 261 | } |
| 262 | ret = 0; |
Assaf Krauss | 34cf6ff | 2008-03-06 10:40:20 -0800 | [diff] [blame] | 263 | done: |
| 264 | priv->cfg->ops->lib->eeprom_ops.release_semaphore(priv); |
Tomas Winkler | 073d3f5 | 2008-04-21 15:41:52 -0700 | [diff] [blame] | 265 | err: |
| 266 | if (ret) |
| 267 | kfree(priv->eeprom); |
| 268 | alloc_err: |
Assaf Krauss | 34cf6ff | 2008-03-06 10:40:20 -0800 | [diff] [blame] | 269 | return ret; |
| 270 | } |
| 271 | EXPORT_SYMBOL(iwl_eeprom_init); |
| 272 | |
Tomas Winkler | 073d3f5 | 2008-04-21 15:41:52 -0700 | [diff] [blame] | 273 | void iwl_eeprom_free(struct iwl_priv *priv) |
| 274 | { |
Tomas Winkler | 3ac7f14 | 2008-07-21 02:40:14 +0300 | [diff] [blame] | 275 | kfree(priv->eeprom); |
Tomas Winkler | 073d3f5 | 2008-04-21 15:41:52 -0700 | [diff] [blame] | 276 | priv->eeprom = NULL; |
| 277 | } |
| 278 | EXPORT_SYMBOL(iwl_eeprom_free); |
| 279 | |
Tomas Winkler | 8614f36 | 2008-04-23 17:14:55 -0700 | [diff] [blame] | 280 | int iwl_eeprom_check_version(struct iwl_priv *priv) |
| 281 | { |
Tomas Winkler | 0ef2ca6 | 2008-10-23 23:48:51 -0700 | [diff] [blame] | 282 | u16 eeprom_ver; |
| 283 | u16 calib_ver; |
| 284 | |
| 285 | eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION); |
| 286 | calib_ver = priv->cfg->ops->lib->eeprom_ops.calib_version(priv); |
| 287 | |
| 288 | if (eeprom_ver < priv->cfg->eeprom_ver || |
| 289 | calib_ver < priv->cfg->eeprom_calib_ver) |
| 290 | goto err; |
| 291 | |
| 292 | return 0; |
| 293 | err: |
Tomas Winkler | a96a27f | 2008-10-23 23:48:56 -0700 | [diff] [blame] | 294 | IWL_ERROR("Unsupported EEPROM VER=0x%x < 0x%x CALIB=0x%x < 0x%x\n", |
Tomas Winkler | 0ef2ca6 | 2008-10-23 23:48:51 -0700 | [diff] [blame] | 295 | eeprom_ver, priv->cfg->eeprom_ver, |
| 296 | calib_ver, priv->cfg->eeprom_calib_ver); |
| 297 | return -EINVAL; |
| 298 | |
Tomas Winkler | 8614f36 | 2008-04-23 17:14:55 -0700 | [diff] [blame] | 299 | } |
| 300 | EXPORT_SYMBOL(iwl_eeprom_check_version); |
Tomas Winkler | 073d3f5 | 2008-04-21 15:41:52 -0700 | [diff] [blame] | 301 | |
| 302 | const u8 *iwl_eeprom_query_addr(const struct iwl_priv *priv, size_t offset) |
| 303 | { |
| 304 | return priv->cfg->ops->lib->eeprom_ops.query_addr(priv, offset); |
| 305 | } |
| 306 | EXPORT_SYMBOL(iwl_eeprom_query_addr); |
| 307 | |
| 308 | u16 iwl_eeprom_query16(const struct iwl_priv *priv, size_t offset) |
| 309 | { |
| 310 | return (u16)priv->eeprom[offset] | ((u16)priv->eeprom[offset + 1] << 8); |
| 311 | } |
| 312 | EXPORT_SYMBOL(iwl_eeprom_query16); |
Assaf Krauss | 34cf6ff | 2008-03-06 10:40:20 -0800 | [diff] [blame] | 313 | |
Tomas Winkler | c79dd5b | 2008-03-12 16:58:50 -0700 | [diff] [blame] | 314 | void iwl_eeprom_get_mac(const struct iwl_priv *priv, u8 *mac) |
Assaf Krauss | 34cf6ff | 2008-03-06 10:40:20 -0800 | [diff] [blame] | 315 | { |
Tomas Winkler | 073d3f5 | 2008-04-21 15:41:52 -0700 | [diff] [blame] | 316 | const u8 *addr = priv->cfg->ops->lib->eeprom_ops.query_addr(priv, |
| 317 | EEPROM_MAC_ADDRESS); |
| 318 | memcpy(mac, addr, ETH_ALEN); |
Assaf Krauss | 34cf6ff | 2008-03-06 10:40:20 -0800 | [diff] [blame] | 319 | } |
| 320 | EXPORT_SYMBOL(iwl_eeprom_get_mac); |
| 321 | |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 322 | static void iwl_init_band_reference(const struct iwl_priv *priv, |
Tomas Winkler | 073d3f5 | 2008-04-21 15:41:52 -0700 | [diff] [blame] | 323 | int eep_band, int *eeprom_ch_count, |
| 324 | const struct iwl_eeprom_channel **eeprom_ch_info, |
| 325 | const u8 **eeprom_ch_index) |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 326 | { |
Tomas Winkler | 073d3f5 | 2008-04-21 15:41:52 -0700 | [diff] [blame] | 327 | u32 offset = priv->cfg->ops->lib-> |
| 328 | eeprom_ops.regulatory_bands[eep_band - 1]; |
| 329 | switch (eep_band) { |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 330 | case 1: /* 2.4GHz band */ |
| 331 | *eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_1); |
Tomas Winkler | 073d3f5 | 2008-04-21 15:41:52 -0700 | [diff] [blame] | 332 | *eeprom_ch_info = (struct iwl_eeprom_channel *) |
| 333 | iwl_eeprom_query_addr(priv, offset); |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 334 | *eeprom_ch_index = iwl_eeprom_band_1; |
| 335 | break; |
| 336 | case 2: /* 4.9GHz band */ |
| 337 | *eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_2); |
Tomas Winkler | 073d3f5 | 2008-04-21 15:41:52 -0700 | [diff] [blame] | 338 | *eeprom_ch_info = (struct iwl_eeprom_channel *) |
| 339 | iwl_eeprom_query_addr(priv, offset); |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 340 | *eeprom_ch_index = iwl_eeprom_band_2; |
| 341 | break; |
| 342 | case 3: /* 5.2GHz band */ |
| 343 | *eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_3); |
Tomas Winkler | 073d3f5 | 2008-04-21 15:41:52 -0700 | [diff] [blame] | 344 | *eeprom_ch_info = (struct iwl_eeprom_channel *) |
| 345 | iwl_eeprom_query_addr(priv, offset); |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 346 | *eeprom_ch_index = iwl_eeprom_band_3; |
| 347 | break; |
| 348 | case 4: /* 5.5GHz band */ |
| 349 | *eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_4); |
Tomas Winkler | 073d3f5 | 2008-04-21 15:41:52 -0700 | [diff] [blame] | 350 | *eeprom_ch_info = (struct iwl_eeprom_channel *) |
| 351 | iwl_eeprom_query_addr(priv, offset); |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 352 | *eeprom_ch_index = iwl_eeprom_band_4; |
| 353 | break; |
| 354 | case 5: /* 5.7GHz band */ |
| 355 | *eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_5); |
Tomas Winkler | 073d3f5 | 2008-04-21 15:41:52 -0700 | [diff] [blame] | 356 | *eeprom_ch_info = (struct iwl_eeprom_channel *) |
| 357 | iwl_eeprom_query_addr(priv, offset); |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 358 | *eeprom_ch_index = iwl_eeprom_band_5; |
| 359 | break; |
| 360 | case 6: /* 2.4GHz FAT channels */ |
| 361 | *eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_6); |
Tomas Winkler | 073d3f5 | 2008-04-21 15:41:52 -0700 | [diff] [blame] | 362 | *eeprom_ch_info = (struct iwl_eeprom_channel *) |
| 363 | iwl_eeprom_query_addr(priv, offset); |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 364 | *eeprom_ch_index = iwl_eeprom_band_6; |
| 365 | break; |
| 366 | case 7: /* 5 GHz FAT channels */ |
| 367 | *eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_7); |
Tomas Winkler | 073d3f5 | 2008-04-21 15:41:52 -0700 | [diff] [blame] | 368 | *eeprom_ch_info = (struct iwl_eeprom_channel *) |
| 369 | iwl_eeprom_query_addr(priv, offset); |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 370 | *eeprom_ch_index = iwl_eeprom_band_7; |
| 371 | break; |
| 372 | default: |
| 373 | BUG(); |
| 374 | return; |
| 375 | } |
| 376 | } |
| 377 | |
| 378 | #define CHECK_AND_PRINT(x) ((eeprom_ch->flags & EEPROM_CHANNEL_##x) \ |
| 379 | ? # x " " : "") |
| 380 | |
| 381 | /** |
Tomas Winkler | da6833cb | 2008-05-15 13:54:15 +0800 | [diff] [blame] | 382 | * iwl_set_fat_chan_info - Copy fat channel info into driver's priv. |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 383 | * |
| 384 | * Does not set up a command, or touch hardware. |
| 385 | */ |
Tomas Winkler | da6833cb | 2008-05-15 13:54:15 +0800 | [diff] [blame] | 386 | static int iwl_set_fat_chan_info(struct iwl_priv *priv, |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 387 | enum ieee80211_band band, u16 channel, |
Tomas Winkler | 073d3f5 | 2008-04-21 15:41:52 -0700 | [diff] [blame] | 388 | const struct iwl_eeprom_channel *eeprom_ch, |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 389 | u8 fat_extension_channel) |
| 390 | { |
| 391 | struct iwl_channel_info *ch_info; |
| 392 | |
| 393 | ch_info = (struct iwl_channel_info *) |
Assaf Krauss | 8622e70 | 2008-03-21 13:53:43 -0700 | [diff] [blame] | 394 | iwl_get_channel_info(priv, band, channel); |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 395 | |
| 396 | if (!is_channel_valid(ch_info)) |
| 397 | return -1; |
| 398 | |
Tomas Winkler | 630fe9b | 2008-06-12 09:47:08 +0800 | [diff] [blame] | 399 | IWL_DEBUG_INFO("FAT Ch. %d [%sGHz] %s%s%s%s%s(0x%02x %ddBm):" |
| 400 | " Ad-Hoc %ssupported\n", |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 401 | ch_info->channel, |
| 402 | is_channel_a_band(ch_info) ? |
| 403 | "5.2" : "2.4", |
| 404 | CHECK_AND_PRINT(IBSS), |
| 405 | CHECK_AND_PRINT(ACTIVE), |
| 406 | CHECK_AND_PRINT(RADAR), |
| 407 | CHECK_AND_PRINT(WIDE), |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 408 | CHECK_AND_PRINT(DFS), |
| 409 | eeprom_ch->flags, |
| 410 | eeprom_ch->max_power_avg, |
| 411 | ((eeprom_ch->flags & EEPROM_CHANNEL_IBSS) |
| 412 | && !(eeprom_ch->flags & EEPROM_CHANNEL_RADAR)) ? |
| 413 | "" : "not "); |
| 414 | |
| 415 | ch_info->fat_eeprom = *eeprom_ch; |
| 416 | ch_info->fat_max_power_avg = eeprom_ch->max_power_avg; |
| 417 | ch_info->fat_curr_txpow = eeprom_ch->max_power_avg; |
| 418 | ch_info->fat_min_power = 0; |
| 419 | ch_info->fat_scan_power = eeprom_ch->max_power_avg; |
| 420 | ch_info->fat_flags = eeprom_ch->flags; |
| 421 | ch_info->fat_extension_channel = fat_extension_channel; |
| 422 | |
| 423 | return 0; |
| 424 | } |
| 425 | |
| 426 | #define CHECK_AND_PRINT_I(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \ |
| 427 | ? # x " " : "") |
| 428 | |
| 429 | /** |
| 430 | * iwl_init_channel_map - Set up driver's info for all possible channels |
| 431 | */ |
| 432 | int iwl_init_channel_map(struct iwl_priv *priv) |
| 433 | { |
| 434 | int eeprom_ch_count = 0; |
| 435 | const u8 *eeprom_ch_index = NULL; |
Tomas Winkler | 073d3f5 | 2008-04-21 15:41:52 -0700 | [diff] [blame] | 436 | const struct iwl_eeprom_channel *eeprom_ch_info = NULL; |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 437 | int band, ch; |
| 438 | struct iwl_channel_info *ch_info; |
| 439 | |
| 440 | if (priv->channel_count) { |
| 441 | IWL_DEBUG_INFO("Channel map already initialized.\n"); |
| 442 | return 0; |
| 443 | } |
| 444 | |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 445 | IWL_DEBUG_INFO("Initializing regulatory info from EEPROM\n"); |
| 446 | |
| 447 | priv->channel_count = |
| 448 | ARRAY_SIZE(iwl_eeprom_band_1) + |
| 449 | ARRAY_SIZE(iwl_eeprom_band_2) + |
| 450 | ARRAY_SIZE(iwl_eeprom_band_3) + |
| 451 | ARRAY_SIZE(iwl_eeprom_band_4) + |
| 452 | ARRAY_SIZE(iwl_eeprom_band_5); |
| 453 | |
| 454 | IWL_DEBUG_INFO("Parsing data for %d channels.\n", priv->channel_count); |
| 455 | |
| 456 | priv->channel_info = kzalloc(sizeof(struct iwl_channel_info) * |
| 457 | priv->channel_count, GFP_KERNEL); |
| 458 | if (!priv->channel_info) { |
| 459 | IWL_ERROR("Could not allocate channel_info\n"); |
| 460 | priv->channel_count = 0; |
| 461 | return -ENOMEM; |
| 462 | } |
| 463 | |
| 464 | ch_info = priv->channel_info; |
| 465 | |
| 466 | /* Loop through the 5 EEPROM bands adding them in order to the |
| 467 | * channel map we maintain (that contains additional information than |
| 468 | * what just in the EEPROM) */ |
| 469 | for (band = 1; band <= 5; band++) { |
| 470 | |
| 471 | iwl_init_band_reference(priv, band, &eeprom_ch_count, |
| 472 | &eeprom_ch_info, &eeprom_ch_index); |
| 473 | |
| 474 | /* Loop through each band adding each of the channels */ |
| 475 | for (ch = 0; ch < eeprom_ch_count; ch++) { |
| 476 | ch_info->channel = eeprom_ch_index[ch]; |
| 477 | ch_info->band = (band == 1) ? IEEE80211_BAND_2GHZ : |
| 478 | IEEE80211_BAND_5GHZ; |
| 479 | |
| 480 | /* permanently store EEPROM's channel regulatory flags |
| 481 | * and max power in channel info database. */ |
| 482 | ch_info->eeprom = eeprom_ch_info[ch]; |
| 483 | |
| 484 | /* Copy the run-time flags so they are there even on |
| 485 | * invalid channels */ |
| 486 | ch_info->flags = eeprom_ch_info[ch].flags; |
Emmanuel Grumbach | 963f551 | 2008-06-12 09:47:00 +0800 | [diff] [blame] | 487 | /* First write that fat is not enabled, and then enable |
| 488 | * one by one */ |
| 489 | ch_info->fat_extension_channel = |
| 490 | (IEEE80211_CHAN_NO_FAT_ABOVE | |
| 491 | IEEE80211_CHAN_NO_FAT_BELOW); |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 492 | |
| 493 | if (!(is_channel_valid(ch_info))) { |
| 494 | IWL_DEBUG_INFO("Ch. %d Flags %x [%sGHz] - " |
| 495 | "No traffic\n", |
| 496 | ch_info->channel, |
| 497 | ch_info->flags, |
| 498 | is_channel_a_band(ch_info) ? |
| 499 | "5.2" : "2.4"); |
| 500 | ch_info++; |
| 501 | continue; |
| 502 | } |
| 503 | |
| 504 | /* Initialize regulatory-based run-time data */ |
| 505 | ch_info->max_power_avg = ch_info->curr_txpow = |
| 506 | eeprom_ch_info[ch].max_power_avg; |
| 507 | ch_info->scan_power = eeprom_ch_info[ch].max_power_avg; |
| 508 | ch_info->min_power = 0; |
| 509 | |
Tomas Winkler | 630fe9b | 2008-06-12 09:47:08 +0800 | [diff] [blame] | 510 | IWL_DEBUG_INFO("Ch. %d [%sGHz] %s%s%s%s%s%s(0x%02x %ddBm):" |
| 511 | " Ad-Hoc %ssupported\n", |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 512 | ch_info->channel, |
| 513 | is_channel_a_band(ch_info) ? |
| 514 | "5.2" : "2.4", |
| 515 | CHECK_AND_PRINT_I(VALID), |
| 516 | CHECK_AND_PRINT_I(IBSS), |
| 517 | CHECK_AND_PRINT_I(ACTIVE), |
| 518 | CHECK_AND_PRINT_I(RADAR), |
| 519 | CHECK_AND_PRINT_I(WIDE), |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 520 | CHECK_AND_PRINT_I(DFS), |
| 521 | eeprom_ch_info[ch].flags, |
| 522 | eeprom_ch_info[ch].max_power_avg, |
| 523 | ((eeprom_ch_info[ch]. |
| 524 | flags & EEPROM_CHANNEL_IBSS) |
| 525 | && !(eeprom_ch_info[ch]. |
| 526 | flags & EEPROM_CHANNEL_RADAR)) |
| 527 | ? "" : "not "); |
| 528 | |
| 529 | /* Set the user_txpower_limit to the highest power |
| 530 | * supported by any channel */ |
| 531 | if (eeprom_ch_info[ch].max_power_avg > |
Tomas Winkler | 630fe9b | 2008-06-12 09:47:08 +0800 | [diff] [blame] | 532 | priv->tx_power_user_lmt) |
| 533 | priv->tx_power_user_lmt = |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 534 | eeprom_ch_info[ch].max_power_avg; |
| 535 | |
| 536 | ch_info++; |
| 537 | } |
| 538 | } |
| 539 | |
| 540 | /* Two additional EEPROM bands for 2.4 and 5 GHz FAT channels */ |
| 541 | for (band = 6; band <= 7; band++) { |
| 542 | enum ieee80211_band ieeeband; |
| 543 | u8 fat_extension_chan; |
| 544 | |
| 545 | iwl_init_band_reference(priv, band, &eeprom_ch_count, |
| 546 | &eeprom_ch_info, &eeprom_ch_index); |
| 547 | |
| 548 | /* EEPROM band 6 is 2.4, band 7 is 5 GHz */ |
| 549 | ieeeband = |
| 550 | (band == 6) ? IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ; |
| 551 | |
| 552 | /* Loop through each band adding each of the channels */ |
| 553 | for (ch = 0; ch < eeprom_ch_count; ch++) { |
| 554 | |
| 555 | if ((band == 6) && |
Emmanuel Grumbach | 963f551 | 2008-06-12 09:47:00 +0800 | [diff] [blame] | 556 | ((eeprom_ch_index[ch] == 5) || |
| 557 | (eeprom_ch_index[ch] == 6) || |
| 558 | (eeprom_ch_index[ch] == 7))) |
| 559 | /* both are allowed: above and below */ |
| 560 | fat_extension_chan = 0; |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 561 | else |
Emmanuel Grumbach | 963f551 | 2008-06-12 09:47:00 +0800 | [diff] [blame] | 562 | fat_extension_chan = |
| 563 | IEEE80211_CHAN_NO_FAT_BELOW; |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 564 | |
| 565 | /* Set up driver's info for lower half */ |
Tomas Winkler | da6833cb | 2008-05-15 13:54:15 +0800 | [diff] [blame] | 566 | iwl_set_fat_chan_info(priv, ieeeband, |
| 567 | eeprom_ch_index[ch], |
| 568 | &(eeprom_ch_info[ch]), |
| 569 | fat_extension_chan); |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 570 | |
| 571 | /* Set up driver's info for upper half */ |
Tomas Winkler | da6833cb | 2008-05-15 13:54:15 +0800 | [diff] [blame] | 572 | iwl_set_fat_chan_info(priv, ieeeband, |
| 573 | (eeprom_ch_index[ch] + 4), |
| 574 | &(eeprom_ch_info[ch]), |
Emmanuel Grumbach | 963f551 | 2008-06-12 09:47:00 +0800 | [diff] [blame] | 575 | IEEE80211_CHAN_NO_FAT_ABOVE); |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 576 | } |
| 577 | } |
| 578 | |
| 579 | return 0; |
| 580 | } |
| 581 | EXPORT_SYMBOL(iwl_init_channel_map); |
| 582 | |
| 583 | /* |
Tomas Winkler | da6833cb | 2008-05-15 13:54:15 +0800 | [diff] [blame] | 584 | * iwl_free_channel_map - undo allocations in iwl_init_channel_map |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 585 | */ |
| 586 | void iwl_free_channel_map(struct iwl_priv *priv) |
| 587 | { |
| 588 | kfree(priv->channel_info); |
| 589 | priv->channel_count = 0; |
| 590 | } |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 591 | |
| 592 | /** |
| 593 | * iwl_get_channel_info - Find driver's private channel info |
| 594 | * |
| 595 | * Based on band and channel number. |
| 596 | */ |
Tomas Winkler | 82a66bb | 2008-05-29 16:35:28 +0800 | [diff] [blame] | 597 | const struct iwl_channel_info *iwl_get_channel_info(const struct iwl_priv *priv, |
| 598 | enum ieee80211_band band, u16 channel) |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 599 | { |
| 600 | int i; |
| 601 | |
| 602 | switch (band) { |
| 603 | case IEEE80211_BAND_5GHZ: |
| 604 | for (i = 14; i < priv->channel_count; i++) { |
| 605 | if (priv->channel_info[i].channel == channel) |
| 606 | return &priv->channel_info[i]; |
| 607 | } |
| 608 | break; |
| 609 | case IEEE80211_BAND_2GHZ: |
| 610 | if (channel >= 1 && channel <= 14) |
| 611 | return &priv->channel_info[channel - 1]; |
| 612 | break; |
| 613 | default: |
| 614 | BUG(); |
| 615 | } |
| 616 | |
| 617 | return NULL; |
| 618 | } |
Assaf Krauss | 8622e70 | 2008-03-21 13:53:43 -0700 | [diff] [blame] | 619 | EXPORT_SYMBOL(iwl_get_channel_info); |
Assaf Krauss | bf85ea4 | 2008-03-14 10:38:49 -0700 | [diff] [blame] | 620 | |