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b1e1adfa JB |
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) 2007 - 2013 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 - 2013 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/slab.h> | |
65 | #include <linux/string.h> | |
66 | #include <linux/export.h> | |
67 | ||
68 | #include "iwl-phy-db.h" | |
69 | #include "iwl-debug.h" | |
70 | #include "iwl-op-mode.h" | |
71 | #include "iwl-trans.h" | |
72 | ||
73 | #define CHANNEL_NUM_SIZE 4 /* num of channels in calib_ch size */ | |
74 | #define IWL_NUM_PAPD_CH_GROUPS 4 | |
75 | #define IWL_NUM_TXP_CH_GROUPS 9 | |
76 | ||
77 | struct iwl_phy_db_entry { | |
78 | u16 size; | |
79 | u8 *data; | |
80 | }; | |
81 | ||
82 | /** | |
83 | * struct iwl_phy_db - stores phy configuration and calibration data. | |
84 | * | |
85 | * @cfg: phy configuration. | |
86 | * @calib_nch: non channel specific calibration data. | |
87 | * @calib_ch: channel specific calibration data. | |
88 | * @calib_ch_group_papd: calibration data related to papd channel group. | |
89 | * @calib_ch_group_txp: calibration data related to tx power chanel group. | |
90 | */ | |
91 | struct iwl_phy_db { | |
92 | struct iwl_phy_db_entry cfg; | |
93 | struct iwl_phy_db_entry calib_nch; | |
94 | struct iwl_phy_db_entry calib_ch; | |
95 | struct iwl_phy_db_entry calib_ch_group_papd[IWL_NUM_PAPD_CH_GROUPS]; | |
96 | struct iwl_phy_db_entry calib_ch_group_txp[IWL_NUM_TXP_CH_GROUPS]; | |
97 | ||
98 | u32 channel_num; | |
99 | u32 channel_size; | |
100 | ||
101 | struct iwl_trans *trans; | |
102 | }; | |
103 | ||
104 | enum iwl_phy_db_section_type { | |
105 | IWL_PHY_DB_CFG = 1, | |
106 | IWL_PHY_DB_CALIB_NCH, | |
107 | IWL_PHY_DB_CALIB_CH, | |
108 | IWL_PHY_DB_CALIB_CHG_PAPD, | |
109 | IWL_PHY_DB_CALIB_CHG_TXP, | |
110 | IWL_PHY_DB_MAX | |
111 | }; | |
112 | ||
113 | #define PHY_DB_CMD 0x6c /* TEMP API - The actual is 0x8c */ | |
114 | ||
115 | /* | |
116 | * phy db - configure operational ucode | |
117 | */ | |
118 | struct iwl_phy_db_cmd { | |
119 | __le16 type; | |
120 | __le16 length; | |
121 | u8 data[]; | |
122 | } __packed; | |
123 | ||
124 | /* for parsing of tx power channel group data that comes from the firmware*/ | |
125 | struct iwl_phy_db_chg_txp { | |
126 | __le32 space; | |
127 | __le16 max_channel_idx; | |
128 | } __packed; | |
129 | ||
130 | /* | |
131 | * phy db - Receieve phy db chunk after calibrations | |
132 | */ | |
133 | struct iwl_calib_res_notif_phy_db { | |
134 | __le16 type; | |
135 | __le16 length; | |
136 | u8 data[]; | |
137 | } __packed; | |
138 | ||
139 | #define IWL_PHY_DB_STATIC_PIC cpu_to_le32(0x21436587) | |
140 | static inline void iwl_phy_db_test_pic(__le32 pic) | |
141 | { | |
142 | WARN_ON(IWL_PHY_DB_STATIC_PIC != pic); | |
143 | } | |
144 | ||
145 | struct iwl_phy_db *iwl_phy_db_init(struct iwl_trans *trans) | |
146 | { | |
147 | struct iwl_phy_db *phy_db = kzalloc(sizeof(struct iwl_phy_db), | |
148 | GFP_KERNEL); | |
149 | ||
150 | if (!phy_db) | |
151 | return phy_db; | |
152 | ||
153 | phy_db->trans = trans; | |
154 | ||
155 | /* TODO: add default values of the phy db. */ | |
156 | return phy_db; | |
157 | } | |
158 | EXPORT_SYMBOL(iwl_phy_db_init); | |
159 | ||
160 | /* | |
161 | * get phy db section: returns a pointer to a phy db section specified by | |
162 | * type and channel group id. | |
163 | */ | |
164 | static struct iwl_phy_db_entry * | |
165 | iwl_phy_db_get_section(struct iwl_phy_db *phy_db, | |
166 | enum iwl_phy_db_section_type type, | |
167 | u16 chg_id) | |
168 | { | |
169 | if (!phy_db || type >= IWL_PHY_DB_MAX) | |
170 | return NULL; | |
171 | ||
172 | switch (type) { | |
173 | case IWL_PHY_DB_CFG: | |
174 | return &phy_db->cfg; | |
175 | case IWL_PHY_DB_CALIB_NCH: | |
176 | return &phy_db->calib_nch; | |
177 | case IWL_PHY_DB_CALIB_CH: | |
178 | return &phy_db->calib_ch; | |
179 | case IWL_PHY_DB_CALIB_CHG_PAPD: | |
180 | if (chg_id >= IWL_NUM_PAPD_CH_GROUPS) | |
181 | return NULL; | |
182 | return &phy_db->calib_ch_group_papd[chg_id]; | |
183 | case IWL_PHY_DB_CALIB_CHG_TXP: | |
184 | if (chg_id >= IWL_NUM_TXP_CH_GROUPS) | |
185 | return NULL; | |
186 | return &phy_db->calib_ch_group_txp[chg_id]; | |
187 | default: | |
188 | return NULL; | |
189 | } | |
190 | return NULL; | |
191 | } | |
192 | ||
193 | static void iwl_phy_db_free_section(struct iwl_phy_db *phy_db, | |
194 | enum iwl_phy_db_section_type type, | |
195 | u16 chg_id) | |
196 | { | |
197 | struct iwl_phy_db_entry *entry = | |
198 | iwl_phy_db_get_section(phy_db, type, chg_id); | |
199 | if (!entry) | |
200 | return; | |
201 | ||
202 | kfree(entry->data); | |
203 | entry->data = NULL; | |
204 | entry->size = 0; | |
205 | } | |
206 | ||
207 | void iwl_phy_db_free(struct iwl_phy_db *phy_db) | |
208 | { | |
209 | int i; | |
210 | ||
211 | if (!phy_db) | |
212 | return; | |
213 | ||
214 | iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CFG, 0); | |
215 | iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_NCH, 0); | |
216 | iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_CH, 0); | |
217 | for (i = 0; i < IWL_NUM_PAPD_CH_GROUPS; i++) | |
218 | iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_CHG_PAPD, i); | |
219 | for (i = 0; i < IWL_NUM_TXP_CH_GROUPS; i++) | |
220 | iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_CHG_TXP, i); | |
221 | ||
222 | kfree(phy_db); | |
223 | } | |
224 | EXPORT_SYMBOL(iwl_phy_db_free); | |
225 | ||
226 | int iwl_phy_db_set_section(struct iwl_phy_db *phy_db, struct iwl_rx_packet *pkt, | |
227 | gfp_t alloc_ctx) | |
228 | { | |
229 | struct iwl_calib_res_notif_phy_db *phy_db_notif = | |
230 | (struct iwl_calib_res_notif_phy_db *)pkt->data; | |
231 | enum iwl_phy_db_section_type type = le16_to_cpu(phy_db_notif->type); | |
232 | u16 size = le16_to_cpu(phy_db_notif->length); | |
233 | struct iwl_phy_db_entry *entry; | |
234 | u16 chg_id = 0; | |
235 | ||
236 | if (!phy_db) | |
237 | return -EINVAL; | |
238 | ||
239 | if (type == IWL_PHY_DB_CALIB_CHG_PAPD || | |
240 | type == IWL_PHY_DB_CALIB_CHG_TXP) | |
241 | chg_id = le16_to_cpup((__le16 *)phy_db_notif->data); | |
242 | ||
243 | entry = iwl_phy_db_get_section(phy_db, type, chg_id); | |
244 | if (!entry) | |
245 | return -EINVAL; | |
246 | ||
247 | kfree(entry->data); | |
248 | entry->data = kmemdup(phy_db_notif->data, size, alloc_ctx); | |
249 | if (!entry->data) { | |
250 | entry->size = 0; | |
251 | return -ENOMEM; | |
252 | } | |
253 | ||
254 | entry->size = size; | |
255 | ||
256 | if (type == IWL_PHY_DB_CALIB_CH) { | |
257 | phy_db->channel_num = | |
258 | le32_to_cpup((__le32 *)phy_db_notif->data); | |
259 | phy_db->channel_size = | |
260 | (size - CHANNEL_NUM_SIZE) / phy_db->channel_num; | |
261 | } | |
262 | ||
263 | /* Test PIC */ | |
264 | if (type != IWL_PHY_DB_CFG) | |
265 | iwl_phy_db_test_pic(*(((__le32 *)phy_db_notif->data) + | |
266 | (size / sizeof(__le32)) - 1)); | |
267 | ||
268 | IWL_DEBUG_INFO(phy_db->trans, | |
269 | "%s(%d): [PHYDB]SET: Type %d , Size: %d\n", | |
270 | __func__, __LINE__, type, size); | |
271 | ||
272 | return 0; | |
273 | } | |
274 | EXPORT_SYMBOL(iwl_phy_db_set_section); | |
275 | ||
276 | static int is_valid_channel(u16 ch_id) | |
277 | { | |
278 | if (ch_id <= 14 || | |
279 | (36 <= ch_id && ch_id <= 64 && ch_id % 4 == 0) || | |
280 | (100 <= ch_id && ch_id <= 140 && ch_id % 4 == 0) || | |
281 | (145 <= ch_id && ch_id <= 165 && ch_id % 4 == 1)) | |
282 | return 1; | |
283 | return 0; | |
284 | } | |
285 | ||
286 | static u8 ch_id_to_ch_index(u16 ch_id) | |
287 | { | |
288 | if (WARN_ON(!is_valid_channel(ch_id))) | |
289 | return 0xff; | |
290 | ||
291 | if (ch_id <= 14) | |
292 | return ch_id - 1; | |
293 | if (ch_id <= 64) | |
294 | return (ch_id + 20) / 4; | |
295 | if (ch_id <= 140) | |
296 | return (ch_id - 12) / 4; | |
297 | return (ch_id - 13) / 4; | |
298 | } | |
299 | ||
300 | ||
301 | static u16 channel_id_to_papd(u16 ch_id) | |
302 | { | |
303 | if (WARN_ON(!is_valid_channel(ch_id))) | |
304 | return 0xff; | |
305 | ||
306 | if (1 <= ch_id && ch_id <= 14) | |
307 | return 0; | |
308 | if (36 <= ch_id && ch_id <= 64) | |
309 | return 1; | |
310 | if (100 <= ch_id && ch_id <= 140) | |
311 | return 2; | |
312 | return 3; | |
313 | } | |
314 | ||
315 | static u16 channel_id_to_txp(struct iwl_phy_db *phy_db, u16 ch_id) | |
316 | { | |
317 | struct iwl_phy_db_chg_txp *txp_chg; | |
318 | int i; | |
319 | u8 ch_index = ch_id_to_ch_index(ch_id); | |
320 | if (ch_index == 0xff) | |
321 | return 0xff; | |
322 | ||
323 | for (i = 0; i < IWL_NUM_TXP_CH_GROUPS; i++) { | |
324 | txp_chg = (void *)phy_db->calib_ch_group_txp[i].data; | |
325 | if (!txp_chg) | |
326 | return 0xff; | |
327 | /* | |
328 | * Looking for the first channel group that its max channel is | |
329 | * higher then wanted channel. | |
330 | */ | |
331 | if (le16_to_cpu(txp_chg->max_channel_idx) >= ch_index) | |
332 | return i; | |
333 | } | |
334 | return 0xff; | |
335 | } | |
336 | static | |
337 | int iwl_phy_db_get_section_data(struct iwl_phy_db *phy_db, | |
338 | u32 type, u8 **data, u16 *size, u16 ch_id) | |
339 | { | |
340 | struct iwl_phy_db_entry *entry; | |
341 | u32 channel_num; | |
342 | u32 channel_size; | |
343 | u16 ch_group_id = 0; | |
344 | u16 index; | |
345 | ||
346 | if (!phy_db) | |
347 | return -EINVAL; | |
348 | ||
349 | /* find wanted channel group */ | |
350 | if (type == IWL_PHY_DB_CALIB_CHG_PAPD) | |
351 | ch_group_id = channel_id_to_papd(ch_id); | |
352 | else if (type == IWL_PHY_DB_CALIB_CHG_TXP) | |
353 | ch_group_id = channel_id_to_txp(phy_db, ch_id); | |
354 | ||
355 | entry = iwl_phy_db_get_section(phy_db, type, ch_group_id); | |
356 | if (!entry) | |
357 | return -EINVAL; | |
358 | ||
359 | if (type == IWL_PHY_DB_CALIB_CH) { | |
360 | index = ch_id_to_ch_index(ch_id); | |
361 | channel_num = phy_db->channel_num; | |
362 | channel_size = phy_db->channel_size; | |
363 | if (index >= channel_num) { | |
364 | IWL_ERR(phy_db->trans, "Wrong channel number %d\n", | |
365 | ch_id); | |
366 | return -EINVAL; | |
367 | } | |
368 | *data = entry->data + CHANNEL_NUM_SIZE + index * channel_size; | |
369 | *size = channel_size; | |
370 | } else { | |
371 | *data = entry->data; | |
372 | *size = entry->size; | |
373 | } | |
374 | ||
375 | /* Test PIC */ | |
376 | if (type != IWL_PHY_DB_CFG) | |
377 | iwl_phy_db_test_pic(*(((__le32 *)*data) + | |
378 | (*size / sizeof(__le32)) - 1)); | |
379 | ||
380 | IWL_DEBUG_INFO(phy_db->trans, | |
381 | "%s(%d): [PHYDB] GET: Type %d , Size: %d\n", | |
382 | __func__, __LINE__, type, *size); | |
383 | ||
384 | return 0; | |
385 | } | |
386 | ||
387 | static int iwl_send_phy_db_cmd(struct iwl_phy_db *phy_db, u16 type, | |
388 | u16 length, void *data) | |
389 | { | |
390 | struct iwl_phy_db_cmd phy_db_cmd; | |
391 | struct iwl_host_cmd cmd = { | |
392 | .id = PHY_DB_CMD, | |
393 | .flags = CMD_SYNC, | |
394 | }; | |
395 | ||
396 | IWL_DEBUG_INFO(phy_db->trans, | |
397 | "Sending PHY-DB hcmd of type %d, of length %d\n", | |
398 | type, length); | |
399 | ||
400 | /* Set phy db cmd variables */ | |
401 | phy_db_cmd.type = cpu_to_le16(type); | |
402 | phy_db_cmd.length = cpu_to_le16(length); | |
403 | ||
404 | /* Set hcmd variables */ | |
405 | cmd.data[0] = &phy_db_cmd; | |
406 | cmd.len[0] = sizeof(struct iwl_phy_db_cmd); | |
407 | cmd.data[1] = data; | |
408 | cmd.len[1] = length; | |
409 | cmd.dataflags[1] = IWL_HCMD_DFL_NOCOPY; | |
410 | ||
411 | return iwl_trans_send_cmd(phy_db->trans, &cmd); | |
412 | } | |
413 | ||
414 | static int iwl_phy_db_send_all_channel_groups( | |
415 | struct iwl_phy_db *phy_db, | |
416 | enum iwl_phy_db_section_type type, | |
417 | u8 max_ch_groups) | |
418 | { | |
419 | u16 i; | |
420 | int err; | |
421 | struct iwl_phy_db_entry *entry; | |
422 | ||
423 | /* Send all the channel specific groups to operational fw */ | |
424 | for (i = 0; i < max_ch_groups; i++) { | |
425 | entry = iwl_phy_db_get_section(phy_db, | |
426 | type, | |
427 | i); | |
428 | if (!entry) | |
429 | return -EINVAL; | |
430 | ||
431 | /* Send the requested PHY DB section */ | |
432 | err = iwl_send_phy_db_cmd(phy_db, | |
433 | type, | |
434 | entry->size, | |
435 | entry->data); | |
436 | if (err) { | |
437 | IWL_ERR(phy_db->trans, | |
438 | "Can't SEND phy_db section %d (%d), err %d", | |
439 | type, i, err); | |
440 | return err; | |
441 | } | |
442 | ||
443 | IWL_DEBUG_INFO(phy_db->trans, | |
444 | "Sent PHY_DB HCMD, type = %d num = %d", | |
445 | type, i); | |
446 | } | |
447 | ||
448 | return 0; | |
449 | } | |
450 | ||
451 | int iwl_send_phy_db_data(struct iwl_phy_db *phy_db) | |
452 | { | |
453 | u8 *data = NULL; | |
454 | u16 size = 0; | |
455 | int err; | |
456 | ||
457 | IWL_DEBUG_INFO(phy_db->trans, | |
458 | "Sending phy db data and configuration to runtime image\n"); | |
459 | ||
460 | /* Send PHY DB CFG section */ | |
461 | err = iwl_phy_db_get_section_data(phy_db, IWL_PHY_DB_CFG, | |
462 | &data, &size, 0); | |
463 | if (err) { | |
464 | IWL_ERR(phy_db->trans, "Cannot get Phy DB cfg section\n"); | |
465 | return err; | |
466 | } | |
467 | ||
468 | err = iwl_send_phy_db_cmd(phy_db, IWL_PHY_DB_CFG, size, data); | |
469 | if (err) { | |
470 | IWL_ERR(phy_db->trans, | |
471 | "Cannot send HCMD of Phy DB cfg section\n"); | |
472 | return err; | |
473 | } | |
474 | ||
475 | err = iwl_phy_db_get_section_data(phy_db, IWL_PHY_DB_CALIB_NCH, | |
476 | &data, &size, 0); | |
477 | if (err) { | |
478 | IWL_ERR(phy_db->trans, | |
479 | "Cannot get Phy DB non specific channel section\n"); | |
480 | return err; | |
481 | } | |
482 | ||
483 | err = iwl_send_phy_db_cmd(phy_db, IWL_PHY_DB_CALIB_NCH, size, data); | |
484 | if (err) { | |
485 | IWL_ERR(phy_db->trans, | |
486 | "Cannot send HCMD of Phy DB non specific channel section\n"); | |
487 | return err; | |
488 | } | |
489 | ||
490 | /* Send all the TXP channel specific data */ | |
491 | err = iwl_phy_db_send_all_channel_groups(phy_db, | |
492 | IWL_PHY_DB_CALIB_CHG_PAPD, | |
493 | IWL_NUM_PAPD_CH_GROUPS); | |
494 | if (err) { | |
495 | IWL_ERR(phy_db->trans, | |
496 | "Cannot send channel specific PAPD groups"); | |
497 | return err; | |
498 | } | |
499 | ||
500 | /* Send all the TXP channel specific data */ | |
501 | err = iwl_phy_db_send_all_channel_groups(phy_db, | |
502 | IWL_PHY_DB_CALIB_CHG_TXP, | |
503 | IWL_NUM_TXP_CH_GROUPS); | |
504 | if (err) { | |
505 | IWL_ERR(phy_db->trans, | |
506 | "Cannot send channel specific TX power groups"); | |
507 | return err; | |
508 | } | |
509 | ||
510 | IWL_DEBUG_INFO(phy_db->trans, | |
511 | "Finished sending phy db non channel data\n"); | |
512 | return 0; | |
513 | } | |
514 | EXPORT_SYMBOL(iwl_send_phy_db_data); |