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64#include <linux/slab.h>
65#include <linux/string.h>
66#include <linux/export.h>
67
68#include "iwl-drv.h"
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
75#define IWL_NUM_PAPD_CH_GROUPS 9
76#define IWL_NUM_TXP_CH_GROUPS 9
77
78struct iwl_phy_db_entry {
79 u16 size;
80 u8 *data;
81};
82
83
84
85
86
87
88
89
90
91
92struct iwl_phy_db {
93 struct iwl_phy_db_entry cfg;
94 struct iwl_phy_db_entry calib_nch;
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 struct iwl_trans *trans;
99};
100
101enum iwl_phy_db_section_type {
102 IWL_PHY_DB_CFG = 1,
103 IWL_PHY_DB_CALIB_NCH,
104 IWL_PHY_DB_UNUSED,
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
111
112
113
114
115struct iwl_phy_db_cmd {
116 __le16 type;
117 __le16 length;
118 u8 data[];
119} __packed;
120
121
122struct iwl_phy_db_chg_txp {
123 __le32 space;
124 __le16 max_channel_idx;
125} __packed;
126
127
128
129
130struct iwl_calib_res_notif_phy_db {
131 __le16 type;
132 __le16 length;
133 u8 data[];
134} __packed;
135
136struct 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
147 return phy_db;
148}
149IWL_EXPORT_SYMBOL(iwl_phy_db_init);
150
151
152
153
154
155static struct iwl_phy_db_entry *
156iwl_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;
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
182static 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
196void 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);
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}
212IWL_EXPORT_SYMBOL(iwl_phy_db_free);
213
214int 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
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}
250IWL_EXPORT_SYMBOL(iwl_phy_db_set_section);
251
252static 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
262static 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
277static 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
291static 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
305
306
307 if (le16_to_cpu(txp_chg->max_channel_idx) >= ch_index)
308 return i;
309 }
310 return 0xff;
311}
312static
313int 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;
317 u16 ch_group_id = 0;
318
319 if (!phy_db)
320 return -EINVAL;
321
322
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
332 *data = entry->data;
333 *size = entry->size;
334
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
342static 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 };
349
350 IWL_DEBUG_INFO(phy_db->trans,
351 "Sending PHY-DB hcmd of type %d, of length %d\n",
352 type, length);
353
354
355 phy_db_cmd.type = cpu_to_le16(type);
356 phy_db_cmd.length = cpu_to_le16(length);
357
358
359 cmd.data[0] = &phy_db_cmd;
360 cmd.len[0] = sizeof(struct iwl_phy_db_cmd);
361 cmd.data[1] = data;
362 cmd.len[1] = length;
363 cmd.dataflags[1] = IWL_HCMD_DFL_NOCOPY;
364
365 return iwl_trans_send_cmd(phy_db->trans, &cmd);
366}
367
368static int iwl_phy_db_send_all_channel_groups(
369 struct iwl_phy_db *phy_db,
370 enum iwl_phy_db_section_type type,
371 u8 max_ch_groups)
372{
373 u16 i;
374 int err;
375 struct iwl_phy_db_entry *entry;
376
377
378 for (i = 0; i < max_ch_groups; i++) {
379 entry = iwl_phy_db_get_section(phy_db,
380 type,
381 i);
382 if (!entry)
383 return -EINVAL;
384
385 if (!entry->size)
386 continue;
387
388
389 err = iwl_send_phy_db_cmd(phy_db,
390 type,
391 entry->size,
392 entry->data);
393 if (err) {
394 IWL_ERR(phy_db->trans,
395 "Can't SEND phy_db section %d (%d), err %d\n",
396 type, i, err);
397 return err;
398 }
399
400 IWL_DEBUG_INFO(phy_db->trans,
401 "Sent PHY_DB HCMD, type = %d num = %d\n",
402 type, i);
403 }
404
405 return 0;
406}
407
408int iwl_send_phy_db_data(struct iwl_phy_db *phy_db)
409{
410 u8 *data = NULL;
411 u16 size = 0;
412 int err;
413
414 IWL_DEBUG_INFO(phy_db->trans,
415 "Sending phy db data and configuration to runtime image\n");
416
417
418 err = iwl_phy_db_get_section_data(phy_db, IWL_PHY_DB_CFG,
419 &data, &size, 0);
420 if (err) {
421 IWL_ERR(phy_db->trans, "Cannot get Phy DB cfg section\n");
422 return err;
423 }
424
425 err = iwl_send_phy_db_cmd(phy_db, IWL_PHY_DB_CFG, size, data);
426 if (err) {
427 IWL_ERR(phy_db->trans,
428 "Cannot send HCMD of Phy DB cfg section\n");
429 return err;
430 }
431
432 err = iwl_phy_db_get_section_data(phy_db, IWL_PHY_DB_CALIB_NCH,
433 &data, &size, 0);
434 if (err) {
435 IWL_ERR(phy_db->trans,
436 "Cannot get Phy DB non specific channel section\n");
437 return err;
438 }
439
440 err = iwl_send_phy_db_cmd(phy_db, IWL_PHY_DB_CALIB_NCH, size, data);
441 if (err) {
442 IWL_ERR(phy_db->trans,
443 "Cannot send HCMD of Phy DB non specific channel section\n");
444 return err;
445 }
446
447
448 err = iwl_phy_db_send_all_channel_groups(phy_db,
449 IWL_PHY_DB_CALIB_CHG_PAPD,
450 IWL_NUM_PAPD_CH_GROUPS);
451 if (err) {
452 IWL_ERR(phy_db->trans,
453 "Cannot send channel specific PAPD groups\n");
454 return err;
455 }
456
457
458 err = iwl_phy_db_send_all_channel_groups(phy_db,
459 IWL_PHY_DB_CALIB_CHG_TXP,
460 IWL_NUM_TXP_CH_GROUPS);
461 if (err) {
462 IWL_ERR(phy_db->trans,
463 "Cannot send channel specific TX power groups\n");
464 return err;
465 }
466
467 IWL_DEBUG_INFO(phy_db->trans,
468 "Finished sending phy db non channel data\n");
469 return 0;
470}
471IWL_EXPORT_SYMBOL(iwl_send_phy_db_data);
472
