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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 | |
410dc5aa | 25 | * in the file called COPYING. |
b1e1adfa JB |
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 | ||
48e29340 | 68 | #include "iwl-drv.h" |
b1e1adfa JB |
69 | #include "iwl-phy-db.h" |
70 | #include "iwl-debug.h" | |
71 | #include "iwl-op-mode.h" | |
72 | #include "iwl-trans.h" | |
73 | ||
74 | #define CHANNEL_NUM_SIZE 4 /* num of channels in calib_ch size */ | |
75 | #define IWL_NUM_PAPD_CH_GROUPS 4 | |
76 | #define IWL_NUM_TXP_CH_GROUPS 9 | |
77 | ||
78 | struct iwl_phy_db_entry { | |
79 | u16 size; | |
80 | u8 *data; | |
81 | }; | |
82 | ||
83 | /** | |
84 | * struct iwl_phy_db - stores phy configuration and calibration data. | |
85 | * | |
86 | * @cfg: phy configuration. | |
87 | * @calib_nch: non channel specific calibration data. | |
88 | * @calib_ch: channel specific calibration data. | |
89 | * @calib_ch_group_papd: calibration data related to papd channel group. | |
90 | * @calib_ch_group_txp: calibration data related to tx power chanel group. | |
91 | */ | |
92 | struct iwl_phy_db { | |
93 | struct iwl_phy_db_entry cfg; | |
94 | struct iwl_phy_db_entry calib_nch; | |
b1e1adfa JB |
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 | ||
b1e1adfa JB |
98 | struct iwl_trans *trans; |
99 | }; | |
100 | ||
101 | enum iwl_phy_db_section_type { | |
102 | IWL_PHY_DB_CFG = 1, | |
103 | IWL_PHY_DB_CALIB_NCH, | |
12dcf2c3 | 104 | IWL_PHY_DB_UNUSED, |
b1e1adfa JB |
105 | IWL_PHY_DB_CALIB_CHG_PAPD, |
106 | IWL_PHY_DB_CALIB_CHG_TXP, | |
107 | IWL_PHY_DB_MAX | |
108 | }; | |
109 | ||
110 | #define PHY_DB_CMD 0x6c /* TEMP API - The actual is 0x8c */ | |
111 | ||
112 | /* | |
113 | * phy db - configure operational ucode | |
114 | */ | |
115 | struct iwl_phy_db_cmd { | |
116 | __le16 type; | |
117 | __le16 length; | |
118 | u8 data[]; | |
119 | } __packed; | |
120 | ||
121 | /* for parsing of tx power channel group data that comes from the firmware*/ | |
122 | struct iwl_phy_db_chg_txp { | |
123 | __le32 space; | |
124 | __le16 max_channel_idx; | |
125 | } __packed; | |
126 | ||
127 | /* | |
128 | * phy db - Receieve phy db chunk after calibrations | |
129 | */ | |
130 | struct iwl_calib_res_notif_phy_db { | |
131 | __le16 type; | |
132 | __le16 length; | |
133 | u8 data[]; | |
134 | } __packed; | |
135 | ||
b1e1adfa JB |
136 | struct iwl_phy_db *iwl_phy_db_init(struct iwl_trans *trans) |
137 | { | |
138 | struct iwl_phy_db *phy_db = kzalloc(sizeof(struct iwl_phy_db), | |
139 | GFP_KERNEL); | |
140 | ||
141 | if (!phy_db) | |
142 | return phy_db; | |
143 | ||
144 | phy_db->trans = trans; | |
145 | ||
146 | /* TODO: add default values of the phy db. */ | |
147 | return phy_db; | |
148 | } | |
48e29340 | 149 | IWL_EXPORT_SYMBOL(iwl_phy_db_init); |
b1e1adfa JB |
150 | |
151 | /* | |
152 | * get phy db section: returns a pointer to a phy db section specified by | |
153 | * type and channel group id. | |
154 | */ | |
155 | static struct iwl_phy_db_entry * | |
156 | iwl_phy_db_get_section(struct iwl_phy_db *phy_db, | |
157 | enum iwl_phy_db_section_type type, | |
158 | u16 chg_id) | |
159 | { | |
160 | if (!phy_db || type >= IWL_PHY_DB_MAX) | |
161 | return NULL; | |
162 | ||
163 | switch (type) { | |
164 | case IWL_PHY_DB_CFG: | |
165 | return &phy_db->cfg; | |
166 | case IWL_PHY_DB_CALIB_NCH: | |
167 | return &phy_db->calib_nch; | |
b1e1adfa JB |
168 | case IWL_PHY_DB_CALIB_CHG_PAPD: |
169 | if (chg_id >= IWL_NUM_PAPD_CH_GROUPS) | |
170 | return NULL; | |
171 | return &phy_db->calib_ch_group_papd[chg_id]; | |
172 | case IWL_PHY_DB_CALIB_CHG_TXP: | |
173 | if (chg_id >= IWL_NUM_TXP_CH_GROUPS) | |
174 | return NULL; | |
175 | return &phy_db->calib_ch_group_txp[chg_id]; | |
176 | default: | |
177 | return NULL; | |
178 | } | |
179 | return NULL; | |
180 | } | |
181 | ||
182 | static void iwl_phy_db_free_section(struct iwl_phy_db *phy_db, | |
183 | enum iwl_phy_db_section_type type, | |
184 | u16 chg_id) | |
185 | { | |
186 | struct iwl_phy_db_entry *entry = | |
187 | iwl_phy_db_get_section(phy_db, type, chg_id); | |
188 | if (!entry) | |
189 | return; | |
190 | ||
191 | kfree(entry->data); | |
192 | entry->data = NULL; | |
193 | entry->size = 0; | |
194 | } | |
195 | ||
196 | void iwl_phy_db_free(struct iwl_phy_db *phy_db) | |
197 | { | |
198 | int i; | |
199 | ||
200 | if (!phy_db) | |
201 | return; | |
202 | ||
203 | iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CFG, 0); | |
204 | iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_NCH, 0); | |
b1e1adfa JB |
205 | for (i = 0; i < IWL_NUM_PAPD_CH_GROUPS; i++) |
206 | iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_CHG_PAPD, i); | |
207 | for (i = 0; i < IWL_NUM_TXP_CH_GROUPS; i++) | |
208 | iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_CHG_TXP, i); | |
209 | ||
210 | kfree(phy_db); | |
211 | } | |
48e29340 | 212 | IWL_EXPORT_SYMBOL(iwl_phy_db_free); |
b1e1adfa JB |
213 | |
214 | int iwl_phy_db_set_section(struct iwl_phy_db *phy_db, struct iwl_rx_packet *pkt, | |
215 | gfp_t alloc_ctx) | |
216 | { | |
217 | struct iwl_calib_res_notif_phy_db *phy_db_notif = | |
218 | (struct iwl_calib_res_notif_phy_db *)pkt->data; | |
219 | enum iwl_phy_db_section_type type = le16_to_cpu(phy_db_notif->type); | |
220 | u16 size = le16_to_cpu(phy_db_notif->length); | |
221 | struct iwl_phy_db_entry *entry; | |
222 | u16 chg_id = 0; | |
223 | ||
224 | if (!phy_db) | |
225 | return -EINVAL; | |
226 | ||
227 | if (type == IWL_PHY_DB_CALIB_CHG_PAPD || | |
228 | type == IWL_PHY_DB_CALIB_CHG_TXP) | |
229 | chg_id = le16_to_cpup((__le16 *)phy_db_notif->data); | |
230 | ||
231 | entry = iwl_phy_db_get_section(phy_db, type, chg_id); | |
232 | if (!entry) | |
233 | return -EINVAL; | |
234 | ||
235 | kfree(entry->data); | |
236 | entry->data = kmemdup(phy_db_notif->data, size, alloc_ctx); | |
237 | if (!entry->data) { | |
238 | entry->size = 0; | |
239 | return -ENOMEM; | |
240 | } | |
241 | ||
242 | entry->size = size; | |
243 | ||
b1e1adfa JB |
244 | IWL_DEBUG_INFO(phy_db->trans, |
245 | "%s(%d): [PHYDB]SET: Type %d , Size: %d\n", | |
246 | __func__, __LINE__, type, size); | |
247 | ||
248 | return 0; | |
249 | } | |
48e29340 | 250 | IWL_EXPORT_SYMBOL(iwl_phy_db_set_section); |
b1e1adfa JB |
251 | |
252 | static int is_valid_channel(u16 ch_id) | |
253 | { | |
254 | if (ch_id <= 14 || | |
255 | (36 <= ch_id && ch_id <= 64 && ch_id % 4 == 0) || | |
256 | (100 <= ch_id && ch_id <= 140 && ch_id % 4 == 0) || | |
257 | (145 <= ch_id && ch_id <= 165 && ch_id % 4 == 1)) | |
258 | return 1; | |
259 | return 0; | |
260 | } | |
261 | ||
262 | static u8 ch_id_to_ch_index(u16 ch_id) | |
263 | { | |
264 | if (WARN_ON(!is_valid_channel(ch_id))) | |
265 | return 0xff; | |
266 | ||
267 | if (ch_id <= 14) | |
268 | return ch_id - 1; | |
269 | if (ch_id <= 64) | |
270 | return (ch_id + 20) / 4; | |
271 | if (ch_id <= 140) | |
272 | return (ch_id - 12) / 4; | |
273 | return (ch_id - 13) / 4; | |
274 | } | |
275 | ||
276 | ||
277 | static u16 channel_id_to_papd(u16 ch_id) | |
278 | { | |
279 | if (WARN_ON(!is_valid_channel(ch_id))) | |
280 | return 0xff; | |
281 | ||
282 | if (1 <= ch_id && ch_id <= 14) | |
283 | return 0; | |
284 | if (36 <= ch_id && ch_id <= 64) | |
285 | return 1; | |
286 | if (100 <= ch_id && ch_id <= 140) | |
287 | return 2; | |
288 | return 3; | |
289 | } | |
290 | ||
291 | static u16 channel_id_to_txp(struct iwl_phy_db *phy_db, u16 ch_id) | |
292 | { | |
293 | struct iwl_phy_db_chg_txp *txp_chg; | |
294 | int i; | |
295 | u8 ch_index = ch_id_to_ch_index(ch_id); | |
296 | if (ch_index == 0xff) | |
297 | return 0xff; | |
298 | ||
299 | for (i = 0; i < IWL_NUM_TXP_CH_GROUPS; i++) { | |
300 | txp_chg = (void *)phy_db->calib_ch_group_txp[i].data; | |
301 | if (!txp_chg) | |
302 | return 0xff; | |
303 | /* | |
304 | * Looking for the first channel group that its max channel is | |
305 | * higher then wanted channel. | |
306 | */ | |
307 | if (le16_to_cpu(txp_chg->max_channel_idx) >= ch_index) | |
308 | return i; | |
309 | } | |
310 | return 0xff; | |
311 | } | |
312 | static | |
313 | int iwl_phy_db_get_section_data(struct iwl_phy_db *phy_db, | |
314 | u32 type, u8 **data, u16 *size, u16 ch_id) | |
315 | { | |
316 | struct iwl_phy_db_entry *entry; | |
b1e1adfa | 317 | u16 ch_group_id = 0; |
b1e1adfa JB |
318 | |
319 | if (!phy_db) | |
320 | return -EINVAL; | |
321 | ||
322 | /* find wanted channel group */ | |
323 | if (type == IWL_PHY_DB_CALIB_CHG_PAPD) | |
324 | ch_group_id = channel_id_to_papd(ch_id); | |
325 | else if (type == IWL_PHY_DB_CALIB_CHG_TXP) | |
326 | ch_group_id = channel_id_to_txp(phy_db, ch_id); | |
327 | ||
328 | entry = iwl_phy_db_get_section(phy_db, type, ch_group_id); | |
329 | if (!entry) | |
330 | return -EINVAL; | |
331 | ||
12dcf2c3 DS |
332 | *data = entry->data; |
333 | *size = entry->size; | |
b1e1adfa | 334 | |
b1e1adfa JB |
335 | IWL_DEBUG_INFO(phy_db->trans, |
336 | "%s(%d): [PHYDB] GET: Type %d , Size: %d\n", | |
337 | __func__, __LINE__, type, *size); | |
338 | ||
339 | return 0; | |
340 | } | |
341 | ||
342 | static int iwl_send_phy_db_cmd(struct iwl_phy_db *phy_db, u16 type, | |
343 | u16 length, void *data) | |
344 | { | |
345 | struct iwl_phy_db_cmd phy_db_cmd; | |
346 | struct iwl_host_cmd cmd = { | |
347 | .id = PHY_DB_CMD, | |
348 | .flags = CMD_SYNC, | |
349 | }; | |
350 | ||
351 | IWL_DEBUG_INFO(phy_db->trans, | |
352 | "Sending PHY-DB hcmd of type %d, of length %d\n", | |
353 | type, length); | |
354 | ||
355 | /* Set phy db cmd variables */ | |
356 | phy_db_cmd.type = cpu_to_le16(type); | |
357 | phy_db_cmd.length = cpu_to_le16(length); | |
358 | ||
359 | /* Set hcmd variables */ | |
360 | cmd.data[0] = &phy_db_cmd; | |
361 | cmd.len[0] = sizeof(struct iwl_phy_db_cmd); | |
362 | cmd.data[1] = data; | |
363 | cmd.len[1] = length; | |
364 | cmd.dataflags[1] = IWL_HCMD_DFL_NOCOPY; | |
365 | ||
366 | return iwl_trans_send_cmd(phy_db->trans, &cmd); | |
367 | } | |
368 | ||
369 | static int iwl_phy_db_send_all_channel_groups( | |
370 | struct iwl_phy_db *phy_db, | |
371 | enum iwl_phy_db_section_type type, | |
372 | u8 max_ch_groups) | |
373 | { | |
374 | u16 i; | |
375 | int err; | |
376 | struct iwl_phy_db_entry *entry; | |
377 | ||
378 | /* Send all the channel specific groups to operational fw */ | |
379 | for (i = 0; i < max_ch_groups; i++) { | |
380 | entry = iwl_phy_db_get_section(phy_db, | |
381 | type, | |
382 | i); | |
383 | if (!entry) | |
384 | return -EINVAL; | |
385 | ||
476a9e09 EG |
386 | if (WARN_ON_ONCE(!entry->size)) |
387 | continue; | |
388 | ||
b1e1adfa JB |
389 | /* Send the requested PHY DB section */ |
390 | err = iwl_send_phy_db_cmd(phy_db, | |
391 | type, | |
392 | entry->size, | |
393 | entry->data); | |
394 | if (err) { | |
395 | IWL_ERR(phy_db->trans, | |
396 | "Can't SEND phy_db section %d (%d), err %d", | |
397 | type, i, err); | |
398 | return err; | |
399 | } | |
400 | ||
401 | IWL_DEBUG_INFO(phy_db->trans, | |
402 | "Sent PHY_DB HCMD, type = %d num = %d", | |
403 | type, i); | |
404 | } | |
405 | ||
406 | return 0; | |
407 | } | |
408 | ||
409 | int iwl_send_phy_db_data(struct iwl_phy_db *phy_db) | |
410 | { | |
411 | u8 *data = NULL; | |
412 | u16 size = 0; | |
413 | int err; | |
414 | ||
415 | IWL_DEBUG_INFO(phy_db->trans, | |
416 | "Sending phy db data and configuration to runtime image\n"); | |
417 | ||
418 | /* Send PHY DB CFG section */ | |
419 | err = iwl_phy_db_get_section_data(phy_db, IWL_PHY_DB_CFG, | |
420 | &data, &size, 0); | |
421 | if (err) { | |
422 | IWL_ERR(phy_db->trans, "Cannot get Phy DB cfg section\n"); | |
423 | return err; | |
424 | } | |
425 | ||
426 | err = iwl_send_phy_db_cmd(phy_db, IWL_PHY_DB_CFG, size, data); | |
427 | if (err) { | |
428 | IWL_ERR(phy_db->trans, | |
429 | "Cannot send HCMD of Phy DB cfg section\n"); | |
430 | return err; | |
431 | } | |
432 | ||
433 | err = iwl_phy_db_get_section_data(phy_db, IWL_PHY_DB_CALIB_NCH, | |
434 | &data, &size, 0); | |
435 | if (err) { | |
436 | IWL_ERR(phy_db->trans, | |
437 | "Cannot get Phy DB non specific channel section\n"); | |
438 | return err; | |
439 | } | |
440 | ||
441 | err = iwl_send_phy_db_cmd(phy_db, IWL_PHY_DB_CALIB_NCH, size, data); | |
442 | if (err) { | |
443 | IWL_ERR(phy_db->trans, | |
444 | "Cannot send HCMD of Phy DB non specific channel section\n"); | |
445 | return err; | |
446 | } | |
447 | ||
448 | /* Send all the TXP channel specific data */ | |
449 | err = iwl_phy_db_send_all_channel_groups(phy_db, | |
450 | IWL_PHY_DB_CALIB_CHG_PAPD, | |
451 | IWL_NUM_PAPD_CH_GROUPS); | |
452 | if (err) { | |
453 | IWL_ERR(phy_db->trans, | |
454 | "Cannot send channel specific PAPD groups"); | |
455 | return err; | |
456 | } | |
457 | ||
458 | /* Send all the TXP channel specific data */ | |
459 | err = iwl_phy_db_send_all_channel_groups(phy_db, | |
460 | IWL_PHY_DB_CALIB_CHG_TXP, | |
461 | IWL_NUM_TXP_CH_GROUPS); | |
462 | if (err) { | |
463 | IWL_ERR(phy_db->trans, | |
464 | "Cannot send channel specific TX power groups"); | |
465 | return err; | |
466 | } | |
467 | ||
468 | IWL_DEBUG_INFO(phy_db->trans, | |
469 | "Finished sending phy db non channel data\n"); | |
470 | return 0; | |
471 | } | |
48e29340 | 472 | IWL_EXPORT_SYMBOL(iwl_send_phy_db_data); |