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be663ab6 WYG |
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 - 2011 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 | * Intel Linux Wireless <ilw@linux.intel.com> | |
29 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
30 | * | |
31 | * BSD LICENSE | |
32 | * | |
33 | * Copyright(c) 2005 - 2011 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> | |
66 | #include <linux/slab.h> | |
67 | #include <linux/init.h> | |
68 | ||
69 | #include <net/mac80211.h> | |
70 | ||
71 | #include "iwl-commands.h" | |
72 | #include "iwl-dev.h" | |
73 | #include "iwl-core.h" | |
74 | #include "iwl-debug.h" | |
75 | #include "iwl-eeprom.h" | |
76 | #include "iwl-io.h" | |
77 | ||
78 | /************************** EEPROM BANDS **************************** | |
79 | * | |
ef33417d | 80 | * The iwlegacy_eeprom_band definitions below provide the mapping from the |
be663ab6 WYG |
81 | * EEPROM contents to the specific channel number supported for each |
82 | * band. | |
83 | * | |
e2ebc833 | 84 | * For example, il_priv->eeprom.band_3_channels[4] from the band_3 |
be663ab6 WYG |
85 | * definition below maps to physical channel 42 in the 5.2GHz spectrum. |
86 | * The specific geography and calibration information for that channel | |
87 | * is contained in the eeprom map itself. | |
88 | * | |
89 | * During init, we copy the eeprom information and channel map | |
90 | * information into priv->channel_info_24/52 and priv->channel_map_24/52 | |
91 | * | |
92 | * channel_map_24/52 provides the index in the channel_info array for a | |
93 | * given channel. We have to have two separate maps as there is channel | |
94 | * overlap with the 2.4GHz and 5.2GHz spectrum as seen in band_1 and | |
95 | * band_2 | |
96 | * | |
97 | * A value of 0xff stored in the channel_map indicates that the channel | |
98 | * is not supported by the hardware at all. | |
99 | * | |
100 | * A value of 0xfe in the channel_map indicates that the channel is not | |
101 | * valid for Tx with the current hardware. This means that | |
102 | * while the system can tune and receive on a given channel, it may not | |
103 | * be able to associate or transmit any frames on that | |
104 | * channel. There is no corresponding channel information for that | |
105 | * entry. | |
106 | * | |
107 | *********************************************************************/ | |
108 | ||
109 | /* 2.4 GHz */ | |
ef33417d | 110 | const u8 iwlegacy_eeprom_band_1[14] = { |
be663ab6 WYG |
111 | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 |
112 | }; | |
113 | ||
114 | /* 5.2 GHz bands */ | |
ef33417d | 115 | static const u8 iwlegacy_eeprom_band_2[] = { /* 4915-5080MHz */ |
be663ab6 WYG |
116 | 183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16 |
117 | }; | |
118 | ||
ef33417d | 119 | static const u8 iwlegacy_eeprom_band_3[] = { /* 5170-5320MHz */ |
be663ab6 WYG |
120 | 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64 |
121 | }; | |
122 | ||
ef33417d | 123 | static const u8 iwlegacy_eeprom_band_4[] = { /* 5500-5700MHz */ |
be663ab6 WYG |
124 | 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140 |
125 | }; | |
126 | ||
ef33417d | 127 | static const u8 iwlegacy_eeprom_band_5[] = { /* 5725-5825MHz */ |
be663ab6 WYG |
128 | 145, 149, 153, 157, 161, 165 |
129 | }; | |
130 | ||
ef33417d | 131 | static const u8 iwlegacy_eeprom_band_6[] = { /* 2.4 ht40 channel */ |
be663ab6 WYG |
132 | 1, 2, 3, 4, 5, 6, 7 |
133 | }; | |
134 | ||
ef33417d | 135 | static const u8 iwlegacy_eeprom_band_7[] = { /* 5.2 ht40 channel */ |
be663ab6 WYG |
136 | 36, 44, 52, 60, 100, 108, 116, 124, 132, 149, 157 |
137 | }; | |
138 | ||
139 | /****************************************************************************** | |
140 | * | |
141 | * EEPROM related functions | |
142 | * | |
143 | ******************************************************************************/ | |
144 | ||
e2ebc833 | 145 | static int il_eeprom_verify_signature(struct il_priv *priv) |
be663ab6 | 146 | { |
e2ebc833 | 147 | u32 gp = il_read32(priv, CSR_EEPROM_GP) & CSR_EEPROM_GP_VALID_MSK; |
be663ab6 WYG |
148 | int ret = 0; |
149 | ||
e2ebc833 | 150 | IL_DEBUG_EEPROM(priv, "EEPROM signature=0x%08x\n", gp); |
be663ab6 WYG |
151 | switch (gp) { |
152 | case CSR_EEPROM_GP_GOOD_SIG_EEP_LESS_THAN_4K: | |
153 | case CSR_EEPROM_GP_GOOD_SIG_EEP_MORE_THAN_4K: | |
154 | break; | |
155 | default: | |
e2ebc833 | 156 | IL_ERR(priv, "bad EEPROM signature," |
be663ab6 WYG |
157 | "EEPROM_GP=0x%08x\n", gp); |
158 | ret = -ENOENT; | |
159 | break; | |
160 | } | |
161 | return ret; | |
162 | } | |
163 | ||
164 | const u8 | |
e2ebc833 | 165 | *il_eeprom_query_addr(const struct il_priv *priv, size_t offset) |
be663ab6 WYG |
166 | { |
167 | BUG_ON(offset >= priv->cfg->base_params->eeprom_size); | |
168 | return &priv->eeprom[offset]; | |
169 | } | |
e2ebc833 | 170 | EXPORT_SYMBOL(il_eeprom_query_addr); |
be663ab6 | 171 | |
e2ebc833 | 172 | u16 il_eeprom_query16(const struct il_priv *priv, size_t offset) |
be663ab6 WYG |
173 | { |
174 | if (!priv->eeprom) | |
175 | return 0; | |
176 | return (u16)priv->eeprom[offset] | ((u16)priv->eeprom[offset + 1] << 8); | |
177 | } | |
e2ebc833 | 178 | EXPORT_SYMBOL(il_eeprom_query16); |
be663ab6 WYG |
179 | |
180 | /** | |
e2ebc833 | 181 | * il_eeprom_init - read EEPROM contents |
be663ab6 WYG |
182 | * |
183 | * Load the EEPROM contents from adapter into priv->eeprom | |
184 | * | |
185 | * NOTE: This routine uses the non-debug IO access functions. | |
186 | */ | |
e2ebc833 | 187 | int il_eeprom_init(struct il_priv *priv) |
be663ab6 WYG |
188 | { |
189 | __le16 *e; | |
e2ebc833 | 190 | u32 gp = il_read32(priv, CSR_EEPROM_GP); |
be663ab6 WYG |
191 | int sz; |
192 | int ret; | |
193 | u16 addr; | |
194 | ||
195 | /* allocate eeprom */ | |
196 | sz = priv->cfg->base_params->eeprom_size; | |
e2ebc833 | 197 | IL_DEBUG_EEPROM(priv, "NVM size = %d\n", sz); |
be663ab6 WYG |
198 | priv->eeprom = kzalloc(sz, GFP_KERNEL); |
199 | if (!priv->eeprom) { | |
200 | ret = -ENOMEM; | |
201 | goto alloc_err; | |
202 | } | |
203 | e = (__le16 *)priv->eeprom; | |
204 | ||
205 | priv->cfg->ops->lib->apm_ops.init(priv); | |
206 | ||
e2ebc833 | 207 | ret = il_eeprom_verify_signature(priv); |
be663ab6 | 208 | if (ret < 0) { |
e2ebc833 | 209 | IL_ERR(priv, "EEPROM not found, EEPROM_GP=0x%08x\n", gp); |
be663ab6 WYG |
210 | ret = -ENOENT; |
211 | goto err; | |
212 | } | |
213 | ||
214 | /* Make sure driver (instead of uCode) is allowed to read EEPROM */ | |
215 | ret = priv->cfg->ops->lib->eeprom_ops.acquire_semaphore(priv); | |
216 | if (ret < 0) { | |
e2ebc833 | 217 | IL_ERR(priv, "Failed to acquire EEPROM semaphore.\n"); |
be663ab6 WYG |
218 | ret = -ENOENT; |
219 | goto err; | |
220 | } | |
221 | ||
222 | /* eeprom is an array of 16bit values */ | |
223 | for (addr = 0; addr < sz; addr += sizeof(u16)) { | |
224 | u32 r; | |
225 | ||
e2ebc833 | 226 | _il_write32(priv, CSR_EEPROM_REG, |
be663ab6 WYG |
227 | CSR_EEPROM_REG_MSK_ADDR & (addr << 1)); |
228 | ||
e2ebc833 | 229 | ret = il_poll_bit(priv, CSR_EEPROM_REG, |
be663ab6 WYG |
230 | CSR_EEPROM_REG_READ_VALID_MSK, |
231 | CSR_EEPROM_REG_READ_VALID_MSK, | |
e2ebc833 | 232 | IL_EEPROM_ACCESS_TIMEOUT); |
be663ab6 | 233 | if (ret < 0) { |
e2ebc833 | 234 | IL_ERR(priv, "Time out reading EEPROM[%d]\n", |
be663ab6 WYG |
235 | addr); |
236 | goto done; | |
237 | } | |
e2ebc833 | 238 | r = _il_read_direct32(priv, CSR_EEPROM_REG); |
be663ab6 WYG |
239 | e[addr / 2] = cpu_to_le16(r >> 16); |
240 | } | |
241 | ||
e2ebc833 | 242 | IL_DEBUG_EEPROM(priv, "NVM Type: %s, version: 0x%x\n", |
be663ab6 | 243 | "EEPROM", |
e2ebc833 | 244 | il_eeprom_query16(priv, EEPROM_VERSION)); |
be663ab6 WYG |
245 | |
246 | ret = 0; | |
247 | done: | |
248 | priv->cfg->ops->lib->eeprom_ops.release_semaphore(priv); | |
249 | ||
250 | err: | |
251 | if (ret) | |
e2ebc833 | 252 | il_eeprom_free(priv); |
be663ab6 | 253 | /* Reset chip to save power until we load uCode during "up". */ |
e2ebc833 | 254 | il_apm_stop(priv); |
be663ab6 WYG |
255 | alloc_err: |
256 | return ret; | |
257 | } | |
e2ebc833 | 258 | EXPORT_SYMBOL(il_eeprom_init); |
be663ab6 | 259 | |
e2ebc833 | 260 | void il_eeprom_free(struct il_priv *priv) |
be663ab6 WYG |
261 | { |
262 | kfree(priv->eeprom); | |
263 | priv->eeprom = NULL; | |
264 | } | |
e2ebc833 | 265 | EXPORT_SYMBOL(il_eeprom_free); |
be663ab6 | 266 | |
e2ebc833 | 267 | static void il_init_band_reference(const struct il_priv *priv, |
be663ab6 | 268 | int eep_band, int *eeprom_ch_count, |
e2ebc833 | 269 | const struct il_eeprom_channel **eeprom_ch_info, |
be663ab6 WYG |
270 | const u8 **eeprom_ch_index) |
271 | { | |
272 | u32 offset = priv->cfg->ops->lib-> | |
273 | eeprom_ops.regulatory_bands[eep_band - 1]; | |
274 | switch (eep_band) { | |
275 | case 1: /* 2.4GHz band */ | |
ef33417d | 276 | *eeprom_ch_count = ARRAY_SIZE(iwlegacy_eeprom_band_1); |
e2ebc833 SG |
277 | *eeprom_ch_info = (struct il_eeprom_channel *) |
278 | il_eeprom_query_addr(priv, offset); | |
ef33417d | 279 | *eeprom_ch_index = iwlegacy_eeprom_band_1; |
be663ab6 WYG |
280 | break; |
281 | case 2: /* 4.9GHz band */ | |
ef33417d | 282 | *eeprom_ch_count = ARRAY_SIZE(iwlegacy_eeprom_band_2); |
e2ebc833 SG |
283 | *eeprom_ch_info = (struct il_eeprom_channel *) |
284 | il_eeprom_query_addr(priv, offset); | |
ef33417d | 285 | *eeprom_ch_index = iwlegacy_eeprom_band_2; |
be663ab6 WYG |
286 | break; |
287 | case 3: /* 5.2GHz band */ | |
ef33417d | 288 | *eeprom_ch_count = ARRAY_SIZE(iwlegacy_eeprom_band_3); |
e2ebc833 SG |
289 | *eeprom_ch_info = (struct il_eeprom_channel *) |
290 | il_eeprom_query_addr(priv, offset); | |
ef33417d | 291 | *eeprom_ch_index = iwlegacy_eeprom_band_3; |
be663ab6 WYG |
292 | break; |
293 | case 4: /* 5.5GHz band */ | |
ef33417d | 294 | *eeprom_ch_count = ARRAY_SIZE(iwlegacy_eeprom_band_4); |
e2ebc833 SG |
295 | *eeprom_ch_info = (struct il_eeprom_channel *) |
296 | il_eeprom_query_addr(priv, offset); | |
ef33417d | 297 | *eeprom_ch_index = iwlegacy_eeprom_band_4; |
be663ab6 WYG |
298 | break; |
299 | case 5: /* 5.7GHz band */ | |
ef33417d | 300 | *eeprom_ch_count = ARRAY_SIZE(iwlegacy_eeprom_band_5); |
e2ebc833 SG |
301 | *eeprom_ch_info = (struct il_eeprom_channel *) |
302 | il_eeprom_query_addr(priv, offset); | |
ef33417d | 303 | *eeprom_ch_index = iwlegacy_eeprom_band_5; |
be663ab6 WYG |
304 | break; |
305 | case 6: /* 2.4GHz ht40 channels */ | |
ef33417d | 306 | *eeprom_ch_count = ARRAY_SIZE(iwlegacy_eeprom_band_6); |
e2ebc833 SG |
307 | *eeprom_ch_info = (struct il_eeprom_channel *) |
308 | il_eeprom_query_addr(priv, offset); | |
ef33417d | 309 | *eeprom_ch_index = iwlegacy_eeprom_band_6; |
be663ab6 WYG |
310 | break; |
311 | case 7: /* 5 GHz ht40 channels */ | |
ef33417d | 312 | *eeprom_ch_count = ARRAY_SIZE(iwlegacy_eeprom_band_7); |
e2ebc833 SG |
313 | *eeprom_ch_info = (struct il_eeprom_channel *) |
314 | il_eeprom_query_addr(priv, offset); | |
ef33417d | 315 | *eeprom_ch_index = iwlegacy_eeprom_band_7; |
be663ab6 WYG |
316 | break; |
317 | default: | |
318 | BUG(); | |
be663ab6 WYG |
319 | } |
320 | } | |
321 | ||
322 | #define CHECK_AND_PRINT(x) ((eeprom_ch->flags & EEPROM_CHANNEL_##x) \ | |
323 | ? # x " " : "") | |
324 | /** | |
e2ebc833 | 325 | * il_mod_ht40_chan_info - Copy ht40 channel info into driver's priv. |
be663ab6 WYG |
326 | * |
327 | * Does not set up a command, or touch hardware. | |
328 | */ | |
e2ebc833 | 329 | static int il_mod_ht40_chan_info(struct il_priv *priv, |
be663ab6 | 330 | enum ieee80211_band band, u16 channel, |
e2ebc833 | 331 | const struct il_eeprom_channel *eeprom_ch, |
be663ab6 WYG |
332 | u8 clear_ht40_extension_channel) |
333 | { | |
e2ebc833 | 334 | struct il_channel_info *ch_info; |
be663ab6 | 335 | |
e2ebc833 SG |
336 | ch_info = (struct il_channel_info *) |
337 | il_get_channel_info(priv, band, channel); | |
be663ab6 | 338 | |
e2ebc833 | 339 | if (!il_is_channel_valid(ch_info)) |
be663ab6 WYG |
340 | return -1; |
341 | ||
e2ebc833 | 342 | IL_DEBUG_EEPROM(priv, "HT40 Ch. %d [%sGHz] %s%s%s%s%s(0x%02x %ddBm):" |
be663ab6 WYG |
343 | " Ad-Hoc %ssupported\n", |
344 | ch_info->channel, | |
e2ebc833 | 345 | il_is_channel_a_band(ch_info) ? |
be663ab6 WYG |
346 | "5.2" : "2.4", |
347 | CHECK_AND_PRINT(IBSS), | |
348 | CHECK_AND_PRINT(ACTIVE), | |
349 | CHECK_AND_PRINT(RADAR), | |
350 | CHECK_AND_PRINT(WIDE), | |
351 | CHECK_AND_PRINT(DFS), | |
352 | eeprom_ch->flags, | |
353 | eeprom_ch->max_power_avg, | |
354 | ((eeprom_ch->flags & EEPROM_CHANNEL_IBSS) | |
355 | && !(eeprom_ch->flags & EEPROM_CHANNEL_RADAR)) ? | |
356 | "" : "not "); | |
357 | ||
358 | ch_info->ht40_eeprom = *eeprom_ch; | |
359 | ch_info->ht40_max_power_avg = eeprom_ch->max_power_avg; | |
360 | ch_info->ht40_flags = eeprom_ch->flags; | |
361 | if (eeprom_ch->flags & EEPROM_CHANNEL_VALID) | |
362 | ch_info->ht40_extension_channel &= | |
363 | ~clear_ht40_extension_channel; | |
364 | ||
365 | return 0; | |
366 | } | |
367 | ||
368 | #define CHECK_AND_PRINT_I(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \ | |
369 | ? # x " " : "") | |
370 | ||
371 | /** | |
e2ebc833 | 372 | * il_init_channel_map - Set up driver's info for all possible channels |
be663ab6 | 373 | */ |
e2ebc833 | 374 | int il_init_channel_map(struct il_priv *priv) |
be663ab6 WYG |
375 | { |
376 | int eeprom_ch_count = 0; | |
377 | const u8 *eeprom_ch_index = NULL; | |
e2ebc833 | 378 | const struct il_eeprom_channel *eeprom_ch_info = NULL; |
be663ab6 | 379 | int band, ch; |
e2ebc833 | 380 | struct il_channel_info *ch_info; |
be663ab6 WYG |
381 | |
382 | if (priv->channel_count) { | |
e2ebc833 | 383 | IL_DEBUG_EEPROM(priv, "Channel map already initialized.\n"); |
be663ab6 WYG |
384 | return 0; |
385 | } | |
386 | ||
e2ebc833 | 387 | IL_DEBUG_EEPROM(priv, "Initializing regulatory info from EEPROM\n"); |
be663ab6 WYG |
388 | |
389 | priv->channel_count = | |
ef33417d JL |
390 | ARRAY_SIZE(iwlegacy_eeprom_band_1) + |
391 | ARRAY_SIZE(iwlegacy_eeprom_band_2) + | |
392 | ARRAY_SIZE(iwlegacy_eeprom_band_3) + | |
393 | ARRAY_SIZE(iwlegacy_eeprom_band_4) + | |
394 | ARRAY_SIZE(iwlegacy_eeprom_band_5); | |
be663ab6 | 395 | |
e2ebc833 | 396 | IL_DEBUG_EEPROM(priv, "Parsing data for %d channels.\n", |
be663ab6 WYG |
397 | priv->channel_count); |
398 | ||
e2ebc833 | 399 | priv->channel_info = kzalloc(sizeof(struct il_channel_info) * |
be663ab6 WYG |
400 | priv->channel_count, GFP_KERNEL); |
401 | if (!priv->channel_info) { | |
e2ebc833 | 402 | IL_ERR(priv, "Could not allocate channel_info\n"); |
be663ab6 WYG |
403 | priv->channel_count = 0; |
404 | return -ENOMEM; | |
405 | } | |
406 | ||
407 | ch_info = priv->channel_info; | |
408 | ||
409 | /* Loop through the 5 EEPROM bands adding them in order to the | |
410 | * channel map we maintain (that contains additional information than | |
411 | * what just in the EEPROM) */ | |
412 | for (band = 1; band <= 5; band++) { | |
413 | ||
e2ebc833 | 414 | il_init_band_reference(priv, band, &eeprom_ch_count, |
be663ab6 WYG |
415 | &eeprom_ch_info, &eeprom_ch_index); |
416 | ||
417 | /* Loop through each band adding each of the channels */ | |
418 | for (ch = 0; ch < eeprom_ch_count; ch++) { | |
419 | ch_info->channel = eeprom_ch_index[ch]; | |
420 | ch_info->band = (band == 1) ? IEEE80211_BAND_2GHZ : | |
421 | IEEE80211_BAND_5GHZ; | |
422 | ||
423 | /* permanently store EEPROM's channel regulatory flags | |
424 | * and max power in channel info database. */ | |
425 | ch_info->eeprom = eeprom_ch_info[ch]; | |
426 | ||
427 | /* Copy the run-time flags so they are there even on | |
428 | * invalid channels */ | |
429 | ch_info->flags = eeprom_ch_info[ch].flags; | |
430 | /* First write that ht40 is not enabled, and then enable | |
431 | * one by one */ | |
432 | ch_info->ht40_extension_channel = | |
433 | IEEE80211_CHAN_NO_HT40; | |
434 | ||
e2ebc833 SG |
435 | if (!(il_is_channel_valid(ch_info))) { |
436 | IL_DEBUG_EEPROM(priv, | |
be663ab6 WYG |
437 | "Ch. %d Flags %x [%sGHz] - " |
438 | "No traffic\n", | |
439 | ch_info->channel, | |
440 | ch_info->flags, | |
e2ebc833 | 441 | il_is_channel_a_band(ch_info) ? |
be663ab6 WYG |
442 | "5.2" : "2.4"); |
443 | ch_info++; | |
444 | continue; | |
445 | } | |
446 | ||
447 | /* Initialize regulatory-based run-time data */ | |
448 | ch_info->max_power_avg = ch_info->curr_txpow = | |
449 | eeprom_ch_info[ch].max_power_avg; | |
450 | ch_info->scan_power = eeprom_ch_info[ch].max_power_avg; | |
451 | ch_info->min_power = 0; | |
452 | ||
e2ebc833 | 453 | IL_DEBUG_EEPROM(priv, "Ch. %d [%sGHz] " |
be663ab6 WYG |
454 | "%s%s%s%s%s%s(0x%02x %ddBm):" |
455 | " Ad-Hoc %ssupported\n", | |
456 | ch_info->channel, | |
e2ebc833 | 457 | il_is_channel_a_band(ch_info) ? |
be663ab6 WYG |
458 | "5.2" : "2.4", |
459 | CHECK_AND_PRINT_I(VALID), | |
460 | CHECK_AND_PRINT_I(IBSS), | |
461 | CHECK_AND_PRINT_I(ACTIVE), | |
462 | CHECK_AND_PRINT_I(RADAR), | |
463 | CHECK_AND_PRINT_I(WIDE), | |
464 | CHECK_AND_PRINT_I(DFS), | |
465 | eeprom_ch_info[ch].flags, | |
466 | eeprom_ch_info[ch].max_power_avg, | |
467 | ((eeprom_ch_info[ch]. | |
468 | flags & EEPROM_CHANNEL_IBSS) | |
469 | && !(eeprom_ch_info[ch]. | |
470 | flags & EEPROM_CHANNEL_RADAR)) | |
471 | ? "" : "not "); | |
472 | ||
be663ab6 WYG |
473 | ch_info++; |
474 | } | |
475 | } | |
476 | ||
477 | /* Check if we do have HT40 channels */ | |
478 | if (priv->cfg->ops->lib->eeprom_ops.regulatory_bands[5] == | |
479 | EEPROM_REGULATORY_BAND_NO_HT40 && | |
480 | priv->cfg->ops->lib->eeprom_ops.regulatory_bands[6] == | |
481 | EEPROM_REGULATORY_BAND_NO_HT40) | |
482 | return 0; | |
483 | ||
484 | /* Two additional EEPROM bands for 2.4 and 5 GHz HT40 channels */ | |
485 | for (band = 6; band <= 7; band++) { | |
486 | enum ieee80211_band ieeeband; | |
487 | ||
e2ebc833 | 488 | il_init_band_reference(priv, band, &eeprom_ch_count, |
be663ab6 WYG |
489 | &eeprom_ch_info, &eeprom_ch_index); |
490 | ||
491 | /* EEPROM band 6 is 2.4, band 7 is 5 GHz */ | |
492 | ieeeband = | |
493 | (band == 6) ? IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ; | |
494 | ||
495 | /* Loop through each band adding each of the channels */ | |
496 | for (ch = 0; ch < eeprom_ch_count; ch++) { | |
497 | /* Set up driver's info for lower half */ | |
e2ebc833 | 498 | il_mod_ht40_chan_info(priv, ieeeband, |
be663ab6 WYG |
499 | eeprom_ch_index[ch], |
500 | &eeprom_ch_info[ch], | |
501 | IEEE80211_CHAN_NO_HT40PLUS); | |
502 | ||
503 | /* Set up driver's info for upper half */ | |
e2ebc833 | 504 | il_mod_ht40_chan_info(priv, ieeeband, |
be663ab6 WYG |
505 | eeprom_ch_index[ch] + 4, |
506 | &eeprom_ch_info[ch], | |
507 | IEEE80211_CHAN_NO_HT40MINUS); | |
508 | } | |
509 | } | |
510 | ||
511 | return 0; | |
512 | } | |
e2ebc833 | 513 | EXPORT_SYMBOL(il_init_channel_map); |
be663ab6 WYG |
514 | |
515 | /* | |
e2ebc833 | 516 | * il_free_channel_map - undo allocations in il_init_channel_map |
be663ab6 | 517 | */ |
e2ebc833 | 518 | void il_free_channel_map(struct il_priv *priv) |
be663ab6 WYG |
519 | { |
520 | kfree(priv->channel_info); | |
521 | priv->channel_count = 0; | |
522 | } | |
e2ebc833 | 523 | EXPORT_SYMBOL(il_free_channel_map); |
be663ab6 WYG |
524 | |
525 | /** | |
e2ebc833 | 526 | * il_get_channel_info - Find driver's private channel info |
be663ab6 WYG |
527 | * |
528 | * Based on band and channel number. | |
529 | */ | |
530 | const struct | |
e2ebc833 | 531 | il_channel_info *il_get_channel_info(const struct il_priv *priv, |
be663ab6 WYG |
532 | enum ieee80211_band band, u16 channel) |
533 | { | |
534 | int i; | |
535 | ||
536 | switch (band) { | |
537 | case IEEE80211_BAND_5GHZ: | |
538 | for (i = 14; i < priv->channel_count; i++) { | |
539 | if (priv->channel_info[i].channel == channel) | |
540 | return &priv->channel_info[i]; | |
541 | } | |
542 | break; | |
543 | case IEEE80211_BAND_2GHZ: | |
544 | if (channel >= 1 && channel <= 14) | |
545 | return &priv->channel_info[channel - 1]; | |
546 | break; | |
547 | default: | |
548 | BUG(); | |
549 | } | |
550 | ||
551 | return NULL; | |
552 | } | |
e2ebc833 | 553 | EXPORT_SYMBOL(il_get_channel_info); |