1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2 /*
3 * Copyright (C) 2017 Intel Deutschland GmbH
4 * Copyright (C) 2019-2023 Intel Corporation
5 */
6 #include <linux/uuid.h>
7 #include <linux/dmi.h>
8 #include "iwl-drv.h"
9 #include "iwl-debug.h"
10 #include "acpi.h"
11 #include "fw/runtime.h"
12
13 const guid_t iwl_guid = GUID_INIT(0xF21202BF, 0x8F78, 0x4DC6,
14 0xA5, 0xB3, 0x1F, 0x73,
15 0x8E, 0x28, 0x5A, 0xDE);
16 IWL_EXPORT_SYMBOL(iwl_guid);
17
18 const guid_t iwl_rfi_guid = GUID_INIT(0x7266172C, 0x220B, 0x4B29,
19 0x81, 0x4F, 0x75, 0xE4,
20 0xDD, 0x26, 0xB5, 0xFD);
21 IWL_EXPORT_SYMBOL(iwl_rfi_guid);
22
23 static const struct dmi_system_id dmi_ppag_approved_list[] = {
24 { .ident = "HP",
25 .matches = {
26 DMI_MATCH(DMI_SYS_VENDOR, "HP"),
27 },
28 },
29 { .ident = "SAMSUNG",
30 .matches = {
31 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD"),
32 },
33 },
34 { .ident = "MSFT",
35 .matches = {
36 DMI_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
37 },
38 },
39 { .ident = "ASUS",
40 .matches = {
41 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
42 },
43 },
44 { .ident = "GOOGLE-HP",
45 .matches = {
46 DMI_MATCH(DMI_SYS_VENDOR, "Google"),
47 DMI_MATCH(DMI_BOARD_VENDOR, "HP"),
48 },
49 },
50 { .ident = "GOOGLE-ASUS",
51 .matches = {
52 DMI_MATCH(DMI_SYS_VENDOR, "Google"),
53 DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTek COMPUTER INC."),
54 },
55 },
56 { .ident = "GOOGLE-SAMSUNG",
57 .matches = {
58 DMI_MATCH(DMI_SYS_VENDOR, "Google"),
59 DMI_MATCH(DMI_BOARD_VENDOR, "SAMSUNG ELECTRONICS CO., LTD"),
60 },
61 },
62 { .ident = "DELL",
63 .matches = {
64 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
65 },
66 },
67 { .ident = "DELL",
68 .matches = {
69 DMI_MATCH(DMI_SYS_VENDOR, "Alienware"),
70 },
71 },
72 { .ident = "RAZER",
73 .matches = {
74 DMI_MATCH(DMI_SYS_VENDOR, "Razer"),
75 },
76 },
77 {}
78 };
79
iwl_acpi_get_handle(struct device * dev,acpi_string method,acpi_handle * ret_handle)80 static int iwl_acpi_get_handle(struct device *dev, acpi_string method,
81 acpi_handle *ret_handle)
82 {
83 acpi_handle root_handle;
84 acpi_status status;
85
86 root_handle = ACPI_HANDLE(dev);
87 if (!root_handle) {
88 IWL_DEBUG_DEV_RADIO(dev,
89 "ACPI: Could not retrieve root port handle\n");
90 return -ENOENT;
91 }
92
93 status = acpi_get_handle(root_handle, method, ret_handle);
94 if (ACPI_FAILURE(status)) {
95 IWL_DEBUG_DEV_RADIO(dev,
96 "ACPI: %s method not found\n", method);
97 return -ENOENT;
98 }
99 return 0;
100 }
101
iwl_acpi_get_object(struct device * dev,acpi_string method)102 static void *iwl_acpi_get_object(struct device *dev, acpi_string method)
103 {
104 struct acpi_buffer buf = {ACPI_ALLOCATE_BUFFER, NULL};
105 acpi_handle handle;
106 acpi_status status;
107 int ret;
108
109 ret = iwl_acpi_get_handle(dev, method, &handle);
110 if (ret)
111 return ERR_PTR(-ENOENT);
112
113 /* Call the method with no arguments */
114 status = acpi_evaluate_object(handle, NULL, NULL, &buf);
115 if (ACPI_FAILURE(status)) {
116 IWL_DEBUG_DEV_RADIO(dev,
117 "ACPI: %s method invocation failed (status: 0x%x)\n",
118 method, status);
119 return ERR_PTR(-ENOENT);
120 }
121 return buf.pointer;
122 }
123
124 /*
125 * Generic function for evaluating a method defined in the device specific
126 * method (DSM) interface. The returned acpi object must be freed by calling
127 * function.
128 */
iwl_acpi_get_dsm_object(struct device * dev,int rev,int func,union acpi_object * args,const guid_t * guid)129 static void *iwl_acpi_get_dsm_object(struct device *dev, int rev, int func,
130 union acpi_object *args,
131 const guid_t *guid)
132 {
133 union acpi_object *obj;
134
135 obj = acpi_evaluate_dsm(ACPI_HANDLE(dev), guid, rev, func,
136 args);
137 if (!obj) {
138 IWL_DEBUG_DEV_RADIO(dev,
139 "ACPI: DSM method invocation failed (rev: %d, func:%d)\n",
140 rev, func);
141 return ERR_PTR(-ENOENT);
142 }
143 return obj;
144 }
145
146 /*
147 * Generic function to evaluate a DSM with no arguments
148 * and an integer return value,
149 * (as an integer object or inside a buffer object),
150 * verify and assign the value in the "value" parameter.
151 * return 0 in success and the appropriate errno otherwise.
152 */
iwl_acpi_get_dsm_integer(struct device * dev,int rev,int func,const guid_t * guid,u64 * value,size_t expected_size)153 static int iwl_acpi_get_dsm_integer(struct device *dev, int rev, int func,
154 const guid_t *guid, u64 *value,
155 size_t expected_size)
156 {
157 union acpi_object *obj;
158 int ret = 0;
159
160 obj = iwl_acpi_get_dsm_object(dev, rev, func, NULL, guid);
161 if (IS_ERR(obj)) {
162 IWL_DEBUG_DEV_RADIO(dev,
163 "Failed to get DSM object. func= %d\n",
164 func);
165 return -ENOENT;
166 }
167
168 if (obj->type == ACPI_TYPE_INTEGER) {
169 *value = obj->integer.value;
170 } else if (obj->type == ACPI_TYPE_BUFFER) {
171 __le64 le_value = 0;
172
173 if (WARN_ON_ONCE(expected_size > sizeof(le_value)))
174 return -EINVAL;
175
176 /* if the buffer size doesn't match the expected size */
177 if (obj->buffer.length != expected_size)
178 IWL_DEBUG_DEV_RADIO(dev,
179 "ACPI: DSM invalid buffer size, padding or truncating (%d)\n",
180 obj->buffer.length);
181
182 /* assuming LE from Intel BIOS spec */
183 memcpy(&le_value, obj->buffer.pointer,
184 min_t(size_t, expected_size, (size_t)obj->buffer.length));
185 *value = le64_to_cpu(le_value);
186 } else {
187 IWL_DEBUG_DEV_RADIO(dev,
188 "ACPI: DSM method did not return a valid object, type=%d\n",
189 obj->type);
190 ret = -EINVAL;
191 goto out;
192 }
193
194 IWL_DEBUG_DEV_RADIO(dev,
195 "ACPI: DSM method evaluated: func=%d, ret=%d\n",
196 func, ret);
197 out:
198 ACPI_FREE(obj);
199 return ret;
200 }
201
202 /*
203 * Evaluate a DSM with no arguments and a u8 return value,
204 */
iwl_acpi_get_dsm_u8(struct device * dev,int rev,int func,const guid_t * guid,u8 * value)205 int iwl_acpi_get_dsm_u8(struct device *dev, int rev, int func,
206 const guid_t *guid, u8 *value)
207 {
208 int ret;
209 u64 val;
210
211 ret = iwl_acpi_get_dsm_integer(dev, rev, func,
212 guid, &val, sizeof(u8));
213
214 if (ret < 0)
215 return ret;
216
217 /* cast val (u64) to be u8 */
218 *value = (u8)val;
219 return 0;
220 }
221 IWL_EXPORT_SYMBOL(iwl_acpi_get_dsm_u8);
222
223 /*
224 * Evaluate a DSM with no arguments and a u32 return value,
225 */
iwl_acpi_get_dsm_u32(struct device * dev,int rev,int func,const guid_t * guid,u32 * value)226 int iwl_acpi_get_dsm_u32(struct device *dev, int rev, int func,
227 const guid_t *guid, u32 *value)
228 {
229 int ret;
230 u64 val;
231
232 ret = iwl_acpi_get_dsm_integer(dev, rev, func,
233 guid, &val, sizeof(u32));
234
235 if (ret < 0)
236 return ret;
237
238 /* cast val (u64) to be u32 */
239 *value = (u32)val;
240 return 0;
241 }
242 IWL_EXPORT_SYMBOL(iwl_acpi_get_dsm_u32);
243
244 static union acpi_object *
iwl_acpi_get_wifi_pkg_range(struct device * dev,union acpi_object * data,int min_data_size,int max_data_size,int * tbl_rev)245 iwl_acpi_get_wifi_pkg_range(struct device *dev,
246 union acpi_object *data,
247 int min_data_size,
248 int max_data_size,
249 int *tbl_rev)
250 {
251 int i;
252 union acpi_object *wifi_pkg;
253
254 /*
255 * We need at least one entry in the wifi package that
256 * describes the domain, and one more entry, otherwise there's
257 * no point in reading it.
258 */
259 if (WARN_ON_ONCE(min_data_size < 2 || min_data_size > max_data_size))
260 return ERR_PTR(-EINVAL);
261
262 /*
263 * We need at least two packages, one for the revision and one
264 * for the data itself. Also check that the revision is valid
265 * (i.e. it is an integer (each caller has to check by itself
266 * if the returned revision is supported)).
267 */
268 if (data->type != ACPI_TYPE_PACKAGE ||
269 data->package.count < 2 ||
270 data->package.elements[0].type != ACPI_TYPE_INTEGER) {
271 IWL_DEBUG_DEV_RADIO(dev, "Invalid packages structure\n");
272 return ERR_PTR(-EINVAL);
273 }
274
275 *tbl_rev = data->package.elements[0].integer.value;
276
277 /* loop through all the packages to find the one for WiFi */
278 for (i = 1; i < data->package.count; i++) {
279 union acpi_object *domain;
280
281 wifi_pkg = &data->package.elements[i];
282
283 /* skip entries that are not a package with the right size */
284 if (wifi_pkg->type != ACPI_TYPE_PACKAGE ||
285 wifi_pkg->package.count < min_data_size ||
286 wifi_pkg->package.count > max_data_size)
287 continue;
288
289 domain = &wifi_pkg->package.elements[0];
290 if (domain->type == ACPI_TYPE_INTEGER &&
291 domain->integer.value == ACPI_WIFI_DOMAIN)
292 goto found;
293 }
294
295 return ERR_PTR(-ENOENT);
296
297 found:
298 return wifi_pkg;
299 }
300
301 static union acpi_object *
iwl_acpi_get_wifi_pkg(struct device * dev,union acpi_object * data,int data_size,int * tbl_rev)302 iwl_acpi_get_wifi_pkg(struct device *dev,
303 union acpi_object *data,
304 int data_size, int *tbl_rev)
305 {
306 return iwl_acpi_get_wifi_pkg_range(dev, data, data_size, data_size,
307 tbl_rev);
308 }
309
310
iwl_acpi_get_tas(struct iwl_fw_runtime * fwrt,union iwl_tas_config_cmd * cmd,int fw_ver)311 int iwl_acpi_get_tas(struct iwl_fw_runtime *fwrt,
312 union iwl_tas_config_cmd *cmd, int fw_ver)
313 {
314 union acpi_object *wifi_pkg, *data;
315 int ret, tbl_rev, i, block_list_size, enabled;
316
317 data = iwl_acpi_get_object(fwrt->dev, ACPI_WTAS_METHOD);
318 if (IS_ERR(data))
319 return PTR_ERR(data);
320
321 /* try to read wtas table revision 1 or revision 0*/
322 wifi_pkg = iwl_acpi_get_wifi_pkg(fwrt->dev, data,
323 ACPI_WTAS_WIFI_DATA_SIZE,
324 &tbl_rev);
325 if (IS_ERR(wifi_pkg)) {
326 ret = PTR_ERR(wifi_pkg);
327 goto out_free;
328 }
329
330 if (tbl_rev == 1 && wifi_pkg->package.elements[1].type ==
331 ACPI_TYPE_INTEGER) {
332 u32 tas_selection =
333 (u32)wifi_pkg->package.elements[1].integer.value;
334 u16 override_iec =
335 (tas_selection & ACPI_WTAS_OVERRIDE_IEC_MSK) >> ACPI_WTAS_OVERRIDE_IEC_POS;
336 u16 enabled_iec = (tas_selection & ACPI_WTAS_ENABLE_IEC_MSK) >>
337 ACPI_WTAS_ENABLE_IEC_POS;
338 u8 usa_tas_uhb = (tas_selection & ACPI_WTAS_USA_UHB_MSK) >> ACPI_WTAS_USA_UHB_POS;
339
340
341 enabled = tas_selection & ACPI_WTAS_ENABLED_MSK;
342 if (fw_ver <= 3) {
343 cmd->v3.override_tas_iec = cpu_to_le16(override_iec);
344 cmd->v3.enable_tas_iec = cpu_to_le16(enabled_iec);
345 } else {
346 cmd->v4.usa_tas_uhb_allowed = usa_tas_uhb;
347 cmd->v4.override_tas_iec = (u8)override_iec;
348 cmd->v4.enable_tas_iec = (u8)enabled_iec;
349 }
350
351 } else if (tbl_rev == 0 &&
352 wifi_pkg->package.elements[1].type == ACPI_TYPE_INTEGER) {
353 enabled = !!wifi_pkg->package.elements[1].integer.value;
354 } else {
355 ret = -EINVAL;
356 goto out_free;
357 }
358
359 if (!enabled) {
360 IWL_DEBUG_RADIO(fwrt, "TAS not enabled\n");
361 ret = 0;
362 goto out_free;
363 }
364
365 IWL_DEBUG_RADIO(fwrt, "Reading TAS table revision %d\n", tbl_rev);
366 if (wifi_pkg->package.elements[2].type != ACPI_TYPE_INTEGER ||
367 wifi_pkg->package.elements[2].integer.value >
368 APCI_WTAS_BLACK_LIST_MAX) {
369 IWL_DEBUG_RADIO(fwrt, "TAS invalid array size %llu\n",
370 wifi_pkg->package.elements[2].integer.value);
371 ret = -EINVAL;
372 goto out_free;
373 }
374 block_list_size = wifi_pkg->package.elements[2].integer.value;
375 cmd->v4.block_list_size = cpu_to_le32(block_list_size);
376
377 IWL_DEBUG_RADIO(fwrt, "TAS array size %u\n", block_list_size);
378 if (block_list_size > APCI_WTAS_BLACK_LIST_MAX) {
379 IWL_DEBUG_RADIO(fwrt, "TAS invalid array size value %u\n",
380 block_list_size);
381 ret = -EINVAL;
382 goto out_free;
383 }
384
385 for (i = 0; i < block_list_size; i++) {
386 u32 country;
387
388 if (wifi_pkg->package.elements[3 + i].type !=
389 ACPI_TYPE_INTEGER) {
390 IWL_DEBUG_RADIO(fwrt,
391 "TAS invalid array elem %d\n", 3 + i);
392 ret = -EINVAL;
393 goto out_free;
394 }
395
396 country = wifi_pkg->package.elements[3 + i].integer.value;
397 cmd->v4.block_list_array[i] = cpu_to_le32(country);
398 IWL_DEBUG_RADIO(fwrt, "TAS block list country %d\n", country);
399 }
400
401 ret = 1;
402 out_free:
403 kfree(data);
404 return ret;
405 }
406 IWL_EXPORT_SYMBOL(iwl_acpi_get_tas);
407
iwl_acpi_get_mcc(struct device * dev,char * mcc)408 int iwl_acpi_get_mcc(struct device *dev, char *mcc)
409 {
410 union acpi_object *wifi_pkg, *data;
411 u32 mcc_val;
412 int ret, tbl_rev;
413
414 data = iwl_acpi_get_object(dev, ACPI_WRDD_METHOD);
415 if (IS_ERR(data))
416 return PTR_ERR(data);
417
418 wifi_pkg = iwl_acpi_get_wifi_pkg(dev, data, ACPI_WRDD_WIFI_DATA_SIZE,
419 &tbl_rev);
420 if (IS_ERR(wifi_pkg)) {
421 ret = PTR_ERR(wifi_pkg);
422 goto out_free;
423 }
424
425 if (wifi_pkg->package.elements[1].type != ACPI_TYPE_INTEGER ||
426 tbl_rev != 0) {
427 ret = -EINVAL;
428 goto out_free;
429 }
430
431 mcc_val = wifi_pkg->package.elements[1].integer.value;
432
433 mcc[0] = (mcc_val >> 8) & 0xff;
434 mcc[1] = mcc_val & 0xff;
435 mcc[2] = '\0';
436
437 ret = 0;
438 out_free:
439 kfree(data);
440 return ret;
441 }
442 IWL_EXPORT_SYMBOL(iwl_acpi_get_mcc);
443
iwl_acpi_get_pwr_limit(struct device * dev)444 u64 iwl_acpi_get_pwr_limit(struct device *dev)
445 {
446 union acpi_object *data, *wifi_pkg;
447 u64 dflt_pwr_limit;
448 int tbl_rev;
449
450 data = iwl_acpi_get_object(dev, ACPI_SPLC_METHOD);
451 if (IS_ERR(data)) {
452 dflt_pwr_limit = 0;
453 goto out;
454 }
455
456 wifi_pkg = iwl_acpi_get_wifi_pkg(dev, data,
457 ACPI_SPLC_WIFI_DATA_SIZE, &tbl_rev);
458 if (IS_ERR(wifi_pkg) || tbl_rev != 0 ||
459 wifi_pkg->package.elements[1].integer.value != ACPI_TYPE_INTEGER) {
460 dflt_pwr_limit = 0;
461 goto out_free;
462 }
463
464 dflt_pwr_limit = wifi_pkg->package.elements[1].integer.value;
465 out_free:
466 kfree(data);
467 out:
468 return dflt_pwr_limit;
469 }
470 IWL_EXPORT_SYMBOL(iwl_acpi_get_pwr_limit);
471
iwl_acpi_get_eckv(struct device * dev,u32 * extl_clk)472 int iwl_acpi_get_eckv(struct device *dev, u32 *extl_clk)
473 {
474 union acpi_object *wifi_pkg, *data;
475 int ret, tbl_rev;
476
477 data = iwl_acpi_get_object(dev, ACPI_ECKV_METHOD);
478 if (IS_ERR(data))
479 return PTR_ERR(data);
480
481 wifi_pkg = iwl_acpi_get_wifi_pkg(dev, data, ACPI_ECKV_WIFI_DATA_SIZE,
482 &tbl_rev);
483 if (IS_ERR(wifi_pkg)) {
484 ret = PTR_ERR(wifi_pkg);
485 goto out_free;
486 }
487
488 if (wifi_pkg->package.elements[1].type != ACPI_TYPE_INTEGER ||
489 tbl_rev != 0) {
490 ret = -EINVAL;
491 goto out_free;
492 }
493
494 *extl_clk = wifi_pkg->package.elements[1].integer.value;
495
496 ret = 0;
497
498 out_free:
499 kfree(data);
500 return ret;
501 }
502 IWL_EXPORT_SYMBOL(iwl_acpi_get_eckv);
503
iwl_sar_set_profile(union acpi_object * table,struct iwl_sar_profile * profile,bool enabled,u8 num_chains,u8 num_sub_bands)504 static int iwl_sar_set_profile(union acpi_object *table,
505 struct iwl_sar_profile *profile,
506 bool enabled, u8 num_chains, u8 num_sub_bands)
507 {
508 int i, j, idx = 0;
509
510 /*
511 * The table from ACPI is flat, but we store it in a
512 * structured array.
513 */
514 for (i = 0; i < ACPI_SAR_NUM_CHAINS_REV2; i++) {
515 for (j = 0; j < ACPI_SAR_NUM_SUB_BANDS_REV2; j++) {
516 /* if we don't have the values, use the default */
517 if (i >= num_chains || j >= num_sub_bands) {
518 profile->chains[i].subbands[j] = 0;
519 } else {
520 if (table[idx].type != ACPI_TYPE_INTEGER ||
521 table[idx].integer.value > U8_MAX)
522 return -EINVAL;
523
524 profile->chains[i].subbands[j] =
525 table[idx].integer.value;
526
527 idx++;
528 }
529 }
530 }
531
532 /* Only if all values were valid can the profile be enabled */
533 profile->enabled = enabled;
534
535 return 0;
536 }
537
iwl_sar_fill_table(struct iwl_fw_runtime * fwrt,__le16 * per_chain,u32 n_subbands,int prof_a,int prof_b)538 static int iwl_sar_fill_table(struct iwl_fw_runtime *fwrt,
539 __le16 *per_chain, u32 n_subbands,
540 int prof_a, int prof_b)
541 {
542 int profs[ACPI_SAR_NUM_CHAINS_REV0] = { prof_a, prof_b };
543 int i, j;
544
545 for (i = 0; i < ACPI_SAR_NUM_CHAINS_REV0; i++) {
546 struct iwl_sar_profile *prof;
547
548 /* don't allow SAR to be disabled (profile 0 means disable) */
549 if (profs[i] == 0)
550 return -EPERM;
551
552 /* we are off by one, so allow up to ACPI_SAR_PROFILE_NUM */
553 if (profs[i] > ACPI_SAR_PROFILE_NUM)
554 return -EINVAL;
555
556 /* profiles go from 1 to 4, so decrement to access the array */
557 prof = &fwrt->sar_profiles[profs[i] - 1];
558
559 /* if the profile is disabled, do nothing */
560 if (!prof->enabled) {
561 IWL_DEBUG_RADIO(fwrt, "SAR profile %d is disabled.\n",
562 profs[i]);
563 /*
564 * if one of the profiles is disabled, we
565 * ignore all of them and return 1 to
566 * differentiate disabled from other failures.
567 */
568 return 1;
569 }
570
571 IWL_DEBUG_INFO(fwrt,
572 "SAR EWRD: chain %d profile index %d\n",
573 i, profs[i]);
574 IWL_DEBUG_RADIO(fwrt, " Chain[%d]:\n", i);
575 for (j = 0; j < n_subbands; j++) {
576 per_chain[i * n_subbands + j] =
577 cpu_to_le16(prof->chains[i].subbands[j]);
578 IWL_DEBUG_RADIO(fwrt, " Band[%d] = %d * .125dBm\n",
579 j, prof->chains[i].subbands[j]);
580 }
581 }
582
583 return 0;
584 }
585
iwl_sar_select_profile(struct iwl_fw_runtime * fwrt,__le16 * per_chain,u32 n_tables,u32 n_subbands,int prof_a,int prof_b)586 int iwl_sar_select_profile(struct iwl_fw_runtime *fwrt,
587 __le16 *per_chain, u32 n_tables, u32 n_subbands,
588 int prof_a, int prof_b)
589 {
590 int i, ret = 0;
591
592 for (i = 0; i < n_tables; i++) {
593 ret = iwl_sar_fill_table(fwrt,
594 &per_chain[i * n_subbands * ACPI_SAR_NUM_CHAINS_REV0],
595 n_subbands, prof_a, prof_b);
596 if (ret)
597 break;
598 }
599
600 return ret;
601 }
602 IWL_EXPORT_SYMBOL(iwl_sar_select_profile);
603
iwl_sar_get_wrds_table(struct iwl_fw_runtime * fwrt)604 int iwl_sar_get_wrds_table(struct iwl_fw_runtime *fwrt)
605 {
606 union acpi_object *wifi_pkg, *table, *data;
607 int ret, tbl_rev;
608 u32 flags;
609 u8 num_chains, num_sub_bands;
610
611 data = iwl_acpi_get_object(fwrt->dev, ACPI_WRDS_METHOD);
612 if (IS_ERR(data))
613 return PTR_ERR(data);
614
615 /* start by trying to read revision 2 */
616 wifi_pkg = iwl_acpi_get_wifi_pkg(fwrt->dev, data,
617 ACPI_WRDS_WIFI_DATA_SIZE_REV2,
618 &tbl_rev);
619 if (!IS_ERR(wifi_pkg)) {
620 if (tbl_rev != 2) {
621 ret = -EINVAL;
622 goto out_free;
623 }
624
625 num_chains = ACPI_SAR_NUM_CHAINS_REV2;
626 num_sub_bands = ACPI_SAR_NUM_SUB_BANDS_REV2;
627
628 goto read_table;
629 }
630
631 /* then try revision 1 */
632 wifi_pkg = iwl_acpi_get_wifi_pkg(fwrt->dev, data,
633 ACPI_WRDS_WIFI_DATA_SIZE_REV1,
634 &tbl_rev);
635 if (!IS_ERR(wifi_pkg)) {
636 if (tbl_rev != 1) {
637 ret = -EINVAL;
638 goto out_free;
639 }
640
641 num_chains = ACPI_SAR_NUM_CHAINS_REV1;
642 num_sub_bands = ACPI_SAR_NUM_SUB_BANDS_REV1;
643
644 goto read_table;
645 }
646
647 /* then finally revision 0 */
648 wifi_pkg = iwl_acpi_get_wifi_pkg(fwrt->dev, data,
649 ACPI_WRDS_WIFI_DATA_SIZE_REV0,
650 &tbl_rev);
651 if (!IS_ERR(wifi_pkg)) {
652 if (tbl_rev != 0) {
653 ret = -EINVAL;
654 goto out_free;
655 }
656
657 num_chains = ACPI_SAR_NUM_CHAINS_REV0;
658 num_sub_bands = ACPI_SAR_NUM_SUB_BANDS_REV0;
659
660 goto read_table;
661 }
662
663 ret = PTR_ERR(wifi_pkg);
664 goto out_free;
665
666 read_table:
667 if (wifi_pkg->package.elements[1].type != ACPI_TYPE_INTEGER) {
668 ret = -EINVAL;
669 goto out_free;
670 }
671
672 IWL_DEBUG_RADIO(fwrt, "Reading WRDS tbl_rev=%d\n", tbl_rev);
673
674 flags = wifi_pkg->package.elements[1].integer.value;
675 fwrt->reduced_power_flags = flags >> IWL_REDUCE_POWER_FLAGS_POS;
676
677 /* position of the actual table */
678 table = &wifi_pkg->package.elements[2];
679
680 /* The profile from WRDS is officially profile 1, but goes
681 * into sar_profiles[0] (because we don't have a profile 0).
682 */
683 ret = iwl_sar_set_profile(table, &fwrt->sar_profiles[0],
684 flags & IWL_SAR_ENABLE_MSK,
685 num_chains, num_sub_bands);
686 out_free:
687 kfree(data);
688 return ret;
689 }
690 IWL_EXPORT_SYMBOL(iwl_sar_get_wrds_table);
691
iwl_sar_get_ewrd_table(struct iwl_fw_runtime * fwrt)692 int iwl_sar_get_ewrd_table(struct iwl_fw_runtime *fwrt)
693 {
694 union acpi_object *wifi_pkg, *data;
695 bool enabled;
696 int i, n_profiles, tbl_rev, pos;
697 int ret = 0;
698 u8 num_chains, num_sub_bands;
699
700 data = iwl_acpi_get_object(fwrt->dev, ACPI_EWRD_METHOD);
701 if (IS_ERR(data))
702 return PTR_ERR(data);
703
704 /* start by trying to read revision 2 */
705 wifi_pkg = iwl_acpi_get_wifi_pkg(fwrt->dev, data,
706 ACPI_EWRD_WIFI_DATA_SIZE_REV2,
707 &tbl_rev);
708 if (!IS_ERR(wifi_pkg)) {
709 if (tbl_rev != 2) {
710 ret = -EINVAL;
711 goto out_free;
712 }
713
714 num_chains = ACPI_SAR_NUM_CHAINS_REV2;
715 num_sub_bands = ACPI_SAR_NUM_SUB_BANDS_REV2;
716
717 goto read_table;
718 }
719
720 /* then try revision 1 */
721 wifi_pkg = iwl_acpi_get_wifi_pkg(fwrt->dev, data,
722 ACPI_EWRD_WIFI_DATA_SIZE_REV1,
723 &tbl_rev);
724 if (!IS_ERR(wifi_pkg)) {
725 if (tbl_rev != 1) {
726 ret = -EINVAL;
727 goto out_free;
728 }
729
730 num_chains = ACPI_SAR_NUM_CHAINS_REV1;
731 num_sub_bands = ACPI_SAR_NUM_SUB_BANDS_REV1;
732
733 goto read_table;
734 }
735
736 /* then finally revision 0 */
737 wifi_pkg = iwl_acpi_get_wifi_pkg(fwrt->dev, data,
738 ACPI_EWRD_WIFI_DATA_SIZE_REV0,
739 &tbl_rev);
740 if (!IS_ERR(wifi_pkg)) {
741 if (tbl_rev != 0) {
742 ret = -EINVAL;
743 goto out_free;
744 }
745
746 num_chains = ACPI_SAR_NUM_CHAINS_REV0;
747 num_sub_bands = ACPI_SAR_NUM_SUB_BANDS_REV0;
748
749 goto read_table;
750 }
751
752 ret = PTR_ERR(wifi_pkg);
753 goto out_free;
754
755 read_table:
756 if (wifi_pkg->package.elements[1].type != ACPI_TYPE_INTEGER ||
757 wifi_pkg->package.elements[2].type != ACPI_TYPE_INTEGER) {
758 ret = -EINVAL;
759 goto out_free;
760 }
761
762 enabled = !!(wifi_pkg->package.elements[1].integer.value);
763 n_profiles = wifi_pkg->package.elements[2].integer.value;
764
765 /*
766 * Check the validity of n_profiles. The EWRD profiles start
767 * from index 1, so the maximum value allowed here is
768 * ACPI_SAR_PROFILES_NUM - 1.
769 */
770 if (n_profiles >= ACPI_SAR_PROFILE_NUM) {
771 ret = -EINVAL;
772 goto out_free;
773 }
774
775 /* the tables start at element 3 */
776 pos = 3;
777
778 for (i = 0; i < n_profiles; i++) {
779 /* The EWRD profiles officially go from 2 to 4, but we
780 * save them in sar_profiles[1-3] (because we don't
781 * have profile 0). So in the array we start from 1.
782 */
783 ret = iwl_sar_set_profile(&wifi_pkg->package.elements[pos],
784 &fwrt->sar_profiles[i + 1], enabled,
785 num_chains, num_sub_bands);
786 if (ret < 0)
787 break;
788
789 /* go to the next table */
790 pos += num_chains * num_sub_bands;
791 }
792
793 out_free:
794 kfree(data);
795 return ret;
796 }
797 IWL_EXPORT_SYMBOL(iwl_sar_get_ewrd_table);
798
iwl_sar_get_wgds_table(struct iwl_fw_runtime * fwrt)799 int iwl_sar_get_wgds_table(struct iwl_fw_runtime *fwrt)
800 {
801 union acpi_object *wifi_pkg, *data;
802 int i, j, k, ret, tbl_rev;
803 u8 num_bands, num_profiles;
804 static const struct {
805 u8 revisions;
806 u8 bands;
807 u8 profiles;
808 u8 min_profiles;
809 } rev_data[] = {
810 {
811 .revisions = BIT(3),
812 .bands = ACPI_GEO_NUM_BANDS_REV2,
813 .profiles = ACPI_NUM_GEO_PROFILES_REV3,
814 .min_profiles = 3,
815 },
816 {
817 .revisions = BIT(2),
818 .bands = ACPI_GEO_NUM_BANDS_REV2,
819 .profiles = ACPI_NUM_GEO_PROFILES,
820 },
821 {
822 .revisions = BIT(0) | BIT(1),
823 .bands = ACPI_GEO_NUM_BANDS_REV0,
824 .profiles = ACPI_NUM_GEO_PROFILES,
825 },
826 };
827 int idx;
828 /* start from one to skip the domain */
829 int entry_idx = 1;
830
831 BUILD_BUG_ON(ACPI_NUM_GEO_PROFILES_REV3 != IWL_NUM_GEO_PROFILES_V3);
832 BUILD_BUG_ON(ACPI_NUM_GEO_PROFILES != IWL_NUM_GEO_PROFILES);
833
834 data = iwl_acpi_get_object(fwrt->dev, ACPI_WGDS_METHOD);
835 if (IS_ERR(data))
836 return PTR_ERR(data);
837
838 /* read the highest revision we understand first */
839 for (idx = 0; idx < ARRAY_SIZE(rev_data); idx++) {
840 /* min_profiles != 0 requires num_profiles header */
841 u32 hdr_size = 1 + !!rev_data[idx].min_profiles;
842 u32 profile_size = ACPI_GEO_PER_CHAIN_SIZE *
843 rev_data[idx].bands;
844 u32 max_size = hdr_size + profile_size * rev_data[idx].profiles;
845 u32 min_size;
846
847 if (!rev_data[idx].min_profiles)
848 min_size = max_size;
849 else
850 min_size = hdr_size +
851 profile_size * rev_data[idx].min_profiles;
852
853 wifi_pkg = iwl_acpi_get_wifi_pkg_range(fwrt->dev, data,
854 min_size, max_size,
855 &tbl_rev);
856 if (!IS_ERR(wifi_pkg)) {
857 if (!(BIT(tbl_rev) & rev_data[idx].revisions))
858 continue;
859
860 num_bands = rev_data[idx].bands;
861 num_profiles = rev_data[idx].profiles;
862
863 if (rev_data[idx].min_profiles) {
864 /* read header that says # of profiles */
865 union acpi_object *entry;
866
867 entry = &wifi_pkg->package.elements[entry_idx];
868 entry_idx++;
869 if (entry->type != ACPI_TYPE_INTEGER ||
870 entry->integer.value > num_profiles ||
871 entry->integer.value <
872 rev_data[idx].min_profiles) {
873 ret = -EINVAL;
874 goto out_free;
875 }
876
877 /*
878 * Check to see if we received package count
879 * same as max # of profiles
880 */
881 if (wifi_pkg->package.count !=
882 hdr_size + profile_size * num_profiles) {
883 ret = -EINVAL;
884 goto out_free;
885 }
886
887 /* Number of valid profiles */
888 num_profiles = entry->integer.value;
889 }
890 goto read_table;
891 }
892 }
893
894 if (idx < ARRAY_SIZE(rev_data))
895 ret = PTR_ERR(wifi_pkg);
896 else
897 ret = -ENOENT;
898 goto out_free;
899
900 read_table:
901 fwrt->geo_rev = tbl_rev;
902 for (i = 0; i < num_profiles; i++) {
903 for (j = 0; j < ACPI_GEO_NUM_BANDS_REV2; j++) {
904 union acpi_object *entry;
905
906 /*
907 * num_bands is either 2 or 3, if it's only 2 then
908 * fill the third band (6 GHz) with the values from
909 * 5 GHz (second band)
910 */
911 if (j >= num_bands) {
912 fwrt->geo_profiles[i].bands[j].max =
913 fwrt->geo_profiles[i].bands[1].max;
914 } else {
915 entry = &wifi_pkg->package.elements[entry_idx];
916 entry_idx++;
917 if (entry->type != ACPI_TYPE_INTEGER ||
918 entry->integer.value > U8_MAX) {
919 ret = -EINVAL;
920 goto out_free;
921 }
922
923 fwrt->geo_profiles[i].bands[j].max =
924 entry->integer.value;
925 }
926
927 for (k = 0; k < ACPI_GEO_NUM_CHAINS; k++) {
928 /* same here as above */
929 if (j >= num_bands) {
930 fwrt->geo_profiles[i].bands[j].chains[k] =
931 fwrt->geo_profiles[i].bands[1].chains[k];
932 } else {
933 entry = &wifi_pkg->package.elements[entry_idx];
934 entry_idx++;
935 if (entry->type != ACPI_TYPE_INTEGER ||
936 entry->integer.value > U8_MAX) {
937 ret = -EINVAL;
938 goto out_free;
939 }
940
941 fwrt->geo_profiles[i].bands[j].chains[k] =
942 entry->integer.value;
943 }
944 }
945 }
946 }
947
948 fwrt->geo_num_profiles = num_profiles;
949 fwrt->geo_enabled = true;
950 ret = 0;
951 out_free:
952 kfree(data);
953 return ret;
954 }
955 IWL_EXPORT_SYMBOL(iwl_sar_get_wgds_table);
956
iwl_sar_geo_support(struct iwl_fw_runtime * fwrt)957 bool iwl_sar_geo_support(struct iwl_fw_runtime *fwrt)
958 {
959 /*
960 * The PER_CHAIN_LIMIT_OFFSET_CMD command is not supported on
961 * earlier firmware versions. Unfortunately, we don't have a
962 * TLV API flag to rely on, so rely on the major version which
963 * is in the first byte of ucode_ver. This was implemented
964 * initially on version 38 and then backported to 17. It was
965 * also backported to 29, but only for 7265D devices. The
966 * intention was to have it in 36 as well, but not all 8000
967 * family got this feature enabled. The 8000 family is the
968 * only one using version 36, so skip this version entirely.
969 */
970 return IWL_UCODE_SERIAL(fwrt->fw->ucode_ver) >= 38 ||
971 (IWL_UCODE_SERIAL(fwrt->fw->ucode_ver) == 17 &&
972 fwrt->trans->hw_rev != CSR_HW_REV_TYPE_3160) ||
973 (IWL_UCODE_SERIAL(fwrt->fw->ucode_ver) == 29 &&
974 ((fwrt->trans->hw_rev & CSR_HW_REV_TYPE_MSK) ==
975 CSR_HW_REV_TYPE_7265D));
976 }
977 IWL_EXPORT_SYMBOL(iwl_sar_geo_support);
978
iwl_sar_geo_init(struct iwl_fw_runtime * fwrt,struct iwl_per_chain_offset * table,u32 n_bands,u32 n_profiles)979 int iwl_sar_geo_init(struct iwl_fw_runtime *fwrt,
980 struct iwl_per_chain_offset *table,
981 u32 n_bands, u32 n_profiles)
982 {
983 int i, j;
984
985 if (!fwrt->geo_enabled)
986 return -ENODATA;
987
988 if (!iwl_sar_geo_support(fwrt))
989 return -EOPNOTSUPP;
990
991 for (i = 0; i < n_profiles; i++) {
992 for (j = 0; j < n_bands; j++) {
993 struct iwl_per_chain_offset *chain =
994 &table[i * n_bands + j];
995
996 chain->max_tx_power =
997 cpu_to_le16(fwrt->geo_profiles[i].bands[j].max);
998 chain->chain_a = fwrt->geo_profiles[i].bands[j].chains[0];
999 chain->chain_b = fwrt->geo_profiles[i].bands[j].chains[1];
1000 IWL_DEBUG_RADIO(fwrt,
1001 "SAR geographic profile[%d] Band[%d]: chain A = %d chain B = %d max_tx_power = %d\n",
1002 i, j,
1003 fwrt->geo_profiles[i].bands[j].chains[0],
1004 fwrt->geo_profiles[i].bands[j].chains[1],
1005 fwrt->geo_profiles[i].bands[j].max);
1006 }
1007 }
1008
1009 return 0;
1010 }
1011 IWL_EXPORT_SYMBOL(iwl_sar_geo_init);
1012
iwl_acpi_get_lari_config_bitmap(struct iwl_fw_runtime * fwrt)1013 __le32 iwl_acpi_get_lari_config_bitmap(struct iwl_fw_runtime *fwrt)
1014 {
1015 int ret;
1016 u8 value;
1017 __le32 config_bitmap = 0;
1018
1019 /*
1020 ** Evaluate func 'DSM_FUNC_ENABLE_INDONESIA_5G2'
1021 */
1022 ret = iwl_acpi_get_dsm_u8(fwrt->dev, 0,
1023 DSM_FUNC_ENABLE_INDONESIA_5G2,
1024 &iwl_guid, &value);
1025
1026 if (!ret && value == DSM_VALUE_INDONESIA_ENABLE)
1027 config_bitmap |=
1028 cpu_to_le32(LARI_CONFIG_ENABLE_5G2_IN_INDONESIA_MSK);
1029
1030 /*
1031 ** Evaluate func 'DSM_FUNC_DISABLE_SRD'
1032 */
1033 ret = iwl_acpi_get_dsm_u8(fwrt->dev, 0,
1034 DSM_FUNC_DISABLE_SRD,
1035 &iwl_guid, &value);
1036 if (!ret) {
1037 if (value == DSM_VALUE_SRD_PASSIVE)
1038 config_bitmap |=
1039 cpu_to_le32(LARI_CONFIG_CHANGE_ETSI_TO_PASSIVE_MSK);
1040 else if (value == DSM_VALUE_SRD_DISABLE)
1041 config_bitmap |=
1042 cpu_to_le32(LARI_CONFIG_CHANGE_ETSI_TO_DISABLED_MSK);
1043 }
1044
1045 return config_bitmap;
1046 }
1047 IWL_EXPORT_SYMBOL(iwl_acpi_get_lari_config_bitmap);
1048
iwl_acpi_get_ppag_table(struct iwl_fw_runtime * fwrt)1049 int iwl_acpi_get_ppag_table(struct iwl_fw_runtime *fwrt)
1050 {
1051 union acpi_object *wifi_pkg, *data, *flags;
1052 int i, j, ret, tbl_rev, num_sub_bands = 0;
1053 int idx = 2;
1054 u8 cmd_ver;
1055
1056 fwrt->ppag_flags = 0;
1057 fwrt->ppag_table_valid = false;
1058
1059 data = iwl_acpi_get_object(fwrt->dev, ACPI_PPAG_METHOD);
1060 if (IS_ERR(data))
1061 return PTR_ERR(data);
1062
1063 /* try to read ppag table rev 2 or 1 (both have the same data size) */
1064 wifi_pkg = iwl_acpi_get_wifi_pkg(fwrt->dev, data,
1065 ACPI_PPAG_WIFI_DATA_SIZE_V2, &tbl_rev);
1066
1067 if (!IS_ERR(wifi_pkg)) {
1068 if (tbl_rev == 1 || tbl_rev == 2) {
1069 num_sub_bands = IWL_NUM_SUB_BANDS_V2;
1070 IWL_DEBUG_RADIO(fwrt,
1071 "Reading PPAG table v2 (tbl_rev=%d)\n",
1072 tbl_rev);
1073 goto read_table;
1074 } else {
1075 ret = -EINVAL;
1076 goto out_free;
1077 }
1078 }
1079
1080 /* try to read ppag table revision 0 */
1081 wifi_pkg = iwl_acpi_get_wifi_pkg(fwrt->dev, data,
1082 ACPI_PPAG_WIFI_DATA_SIZE_V1, &tbl_rev);
1083
1084 if (!IS_ERR(wifi_pkg)) {
1085 if (tbl_rev != 0) {
1086 ret = -EINVAL;
1087 goto out_free;
1088 }
1089 num_sub_bands = IWL_NUM_SUB_BANDS_V1;
1090 IWL_DEBUG_RADIO(fwrt, "Reading PPAG table v1 (tbl_rev=0)\n");
1091 goto read_table;
1092 }
1093
1094 ret = PTR_ERR(wifi_pkg);
1095 goto out_free;
1096
1097 read_table:
1098 fwrt->ppag_ver = tbl_rev;
1099 flags = &wifi_pkg->package.elements[1];
1100
1101 if (flags->type != ACPI_TYPE_INTEGER) {
1102 ret = -EINVAL;
1103 goto out_free;
1104 }
1105
1106 fwrt->ppag_flags = flags->integer.value & ACPI_PPAG_MASK;
1107 cmd_ver = iwl_fw_lookup_cmd_ver(fwrt->fw,
1108 WIDE_ID(PHY_OPS_GROUP,
1109 PER_PLATFORM_ANT_GAIN_CMD),
1110 IWL_FW_CMD_VER_UNKNOWN);
1111 if (cmd_ver == IWL_FW_CMD_VER_UNKNOWN) {
1112 ret = -EINVAL;
1113 goto out_free;
1114 }
1115 if (!fwrt->ppag_flags && cmd_ver <= 3) {
1116 ret = 0;
1117 goto out_free;
1118 }
1119
1120 /*
1121 * read, verify gain values and save them into the PPAG table.
1122 * first sub-band (j=0) corresponds to Low-Band (2.4GHz), and the
1123 * following sub-bands to High-Band (5GHz).
1124 */
1125 for (i = 0; i < IWL_NUM_CHAIN_LIMITS; i++) {
1126 for (j = 0; j < num_sub_bands; j++) {
1127 union acpi_object *ent;
1128
1129 ent = &wifi_pkg->package.elements[idx++];
1130 if (ent->type != ACPI_TYPE_INTEGER) {
1131 ret = -EINVAL;
1132 goto out_free;
1133 }
1134
1135 fwrt->ppag_chains[i].subbands[j] = ent->integer.value;
1136 /* from ver 4 the fw deals with out of range values */
1137 if (cmd_ver >= 4)
1138 continue;
1139 if ((j == 0 &&
1140 (fwrt->ppag_chains[i].subbands[j] > ACPI_PPAG_MAX_LB ||
1141 fwrt->ppag_chains[i].subbands[j] < ACPI_PPAG_MIN_LB)) ||
1142 (j != 0 &&
1143 (fwrt->ppag_chains[i].subbands[j] > ACPI_PPAG_MAX_HB ||
1144 fwrt->ppag_chains[i].subbands[j] < ACPI_PPAG_MIN_HB))) {
1145 ret = -EINVAL;
1146 goto out_free;
1147 }
1148 }
1149 }
1150
1151 fwrt->ppag_table_valid = true;
1152 ret = 0;
1153
1154 out_free:
1155 kfree(data);
1156 return ret;
1157 }
1158 IWL_EXPORT_SYMBOL(iwl_acpi_get_ppag_table);
1159
iwl_read_ppag_table(struct iwl_fw_runtime * fwrt,union iwl_ppag_table_cmd * cmd,int * cmd_size)1160 int iwl_read_ppag_table(struct iwl_fw_runtime *fwrt, union iwl_ppag_table_cmd *cmd,
1161 int *cmd_size)
1162 {
1163 u8 cmd_ver;
1164 int i, j, num_sub_bands;
1165 s8 *gain;
1166
1167 /* many firmware images for JF lie about this */
1168 if (CSR_HW_RFID_TYPE(fwrt->trans->hw_rf_id) ==
1169 CSR_HW_RFID_TYPE(CSR_HW_RF_ID_TYPE_JF))
1170 return -EOPNOTSUPP;
1171
1172 if (!fw_has_capa(&fwrt->fw->ucode_capa, IWL_UCODE_TLV_CAPA_SET_PPAG)) {
1173 IWL_DEBUG_RADIO(fwrt,
1174 "PPAG capability not supported by FW, command not sent.\n");
1175 return -EINVAL;
1176 }
1177
1178 cmd_ver = iwl_fw_lookup_cmd_ver(fwrt->fw,
1179 WIDE_ID(PHY_OPS_GROUP,
1180 PER_PLATFORM_ANT_GAIN_CMD),
1181 IWL_FW_CMD_VER_UNKNOWN);
1182 if (!fwrt->ppag_table_valid || (cmd_ver <= 3 && !fwrt->ppag_flags)) {
1183 IWL_DEBUG_RADIO(fwrt, "PPAG not enabled, command not sent.\n");
1184 return -EINVAL;
1185 }
1186
1187 /* The 'flags' field is the same in v1 and in v2 so we can just
1188 * use v1 to access it.
1189 */
1190 cmd->v1.flags = cpu_to_le32(fwrt->ppag_flags);
1191
1192 IWL_DEBUG_RADIO(fwrt, "PPAG cmd ver is %d\n", cmd_ver);
1193 if (cmd_ver == 1) {
1194 num_sub_bands = IWL_NUM_SUB_BANDS_V1;
1195 gain = cmd->v1.gain[0];
1196 *cmd_size = sizeof(cmd->v1);
1197 if (fwrt->ppag_ver == 1 || fwrt->ppag_ver == 2) {
1198 /* in this case FW supports revision 0 */
1199 IWL_DEBUG_RADIO(fwrt,
1200 "PPAG table rev is %d, send truncated table\n",
1201 fwrt->ppag_ver);
1202 }
1203 } else if (cmd_ver >= 2 && cmd_ver <= 4) {
1204 num_sub_bands = IWL_NUM_SUB_BANDS_V2;
1205 gain = cmd->v2.gain[0];
1206 *cmd_size = sizeof(cmd->v2);
1207 if (fwrt->ppag_ver == 0) {
1208 /* in this case FW supports revisions 1 or 2 */
1209 IWL_DEBUG_RADIO(fwrt,
1210 "PPAG table rev is 0, send padded table\n");
1211 }
1212 } else {
1213 IWL_DEBUG_RADIO(fwrt, "Unsupported PPAG command version\n");
1214 return -EINVAL;
1215 }
1216
1217 /* ppag mode */
1218 IWL_DEBUG_RADIO(fwrt,
1219 "PPAG MODE bits were read from bios: %d\n",
1220 cmd->v1.flags & cpu_to_le32(ACPI_PPAG_MASK));
1221 if ((cmd_ver == 1 && !fw_has_capa(&fwrt->fw->ucode_capa,
1222 IWL_UCODE_TLV_CAPA_PPAG_CHINA_BIOS_SUPPORT)) ||
1223 (cmd_ver == 2 && fwrt->ppag_ver == 2)) {
1224 cmd->v1.flags &= cpu_to_le32(IWL_PPAG_ETSI_MASK);
1225 IWL_DEBUG_RADIO(fwrt, "masking ppag China bit\n");
1226 } else {
1227 IWL_DEBUG_RADIO(fwrt, "isn't masking ppag China bit\n");
1228 }
1229
1230 IWL_DEBUG_RADIO(fwrt,
1231 "PPAG MODE bits going to be sent: %d\n",
1232 cmd->v1.flags & cpu_to_le32(ACPI_PPAG_MASK));
1233
1234 for (i = 0; i < IWL_NUM_CHAIN_LIMITS; i++) {
1235 for (j = 0; j < num_sub_bands; j++) {
1236 gain[i * num_sub_bands + j] =
1237 fwrt->ppag_chains[i].subbands[j];
1238 IWL_DEBUG_RADIO(fwrt,
1239 "PPAG table: chain[%d] band[%d]: gain = %d\n",
1240 i, j, gain[i * num_sub_bands + j]);
1241 }
1242 }
1243
1244 return 0;
1245 }
1246 IWL_EXPORT_SYMBOL(iwl_read_ppag_table);
1247
iwl_acpi_is_ppag_approved(struct iwl_fw_runtime * fwrt)1248 bool iwl_acpi_is_ppag_approved(struct iwl_fw_runtime *fwrt)
1249 {
1250
1251 if (!dmi_check_system(dmi_ppag_approved_list)) {
1252 IWL_DEBUG_RADIO(fwrt,
1253 "System vendor '%s' is not in the approved list, disabling PPAG.\n",
1254 dmi_get_system_info(DMI_SYS_VENDOR));
1255 fwrt->ppag_flags = 0;
1256 return false;
1257 }
1258
1259 return true;
1260 }
1261 IWL_EXPORT_SYMBOL(iwl_acpi_is_ppag_approved);
1262
iwl_acpi_get_phy_filters(struct iwl_fw_runtime * fwrt,struct iwl_phy_specific_cfg * filters)1263 void iwl_acpi_get_phy_filters(struct iwl_fw_runtime *fwrt,
1264 struct iwl_phy_specific_cfg *filters)
1265 {
1266 struct iwl_phy_specific_cfg tmp = {};
1267 union acpi_object *wifi_pkg, *data;
1268 int tbl_rev, i;
1269
1270 data = iwl_acpi_get_object(fwrt->dev, ACPI_WPFC_METHOD);
1271 if (IS_ERR(data))
1272 return;
1273
1274 wifi_pkg = iwl_acpi_get_wifi_pkg(fwrt->dev, data,
1275 ACPI_WPFC_WIFI_DATA_SIZE,
1276 &tbl_rev);
1277 if (IS_ERR(wifi_pkg))
1278 goto out_free;
1279
1280 if (tbl_rev != 0)
1281 goto out_free;
1282
1283 BUILD_BUG_ON(ARRAY_SIZE(filters->filter_cfg_chains) !=
1284 ACPI_WPFC_WIFI_DATA_SIZE - 1);
1285
1286 for (i = 0; i < ARRAY_SIZE(filters->filter_cfg_chains); i++) {
1287 if (wifi_pkg->package.elements[i + 1].type != ACPI_TYPE_INTEGER)
1288 goto out_free;
1289 tmp.filter_cfg_chains[i] =
1290 cpu_to_le32(wifi_pkg->package.elements[i + 1].integer.value);
1291 }
1292
1293 IWL_DEBUG_RADIO(fwrt, "Loaded WPFC filter config from ACPI\n");
1294 *filters = tmp;
1295 out_free:
1296 kfree(data);
1297 }
1298 IWL_EXPORT_SYMBOL(iwl_acpi_get_phy_filters);
1299