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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm...
[deliverable/linux.git] / drivers / net / wireless / intel / iwlwifi / mvm / fw.c
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) 2012 - 2014 Intel Corporation. All rights reserved.
9 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
10 * Copyright(c) 2016 Intel Deutschland GmbH
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of version 2 of the GNU General Public License as
14 * published by the Free Software Foundation.
15 *
16 * This program is distributed in the hope that it will be useful, but
17 * WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
24 * USA
25 *
26 * The full GNU General Public License is included in this distribution
27 * in the file called COPYING.
28 *
29 * Contact Information:
30 * Intel Linux Wireless <linuxwifi@intel.com>
31 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
32 *
33 * BSD LICENSE
34 *
35 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
36 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
37 * All rights reserved.
38 *
39 * Redistribution and use in source and binary forms, with or without
40 * modification, are permitted provided that the following conditions
41 * are met:
42 *
43 * * Redistributions of source code must retain the above copyright
44 * notice, this list of conditions and the following disclaimer.
45 * * Redistributions in binary form must reproduce the above copyright
46 * notice, this list of conditions and the following disclaimer in
47 * the documentation and/or other materials provided with the
48 * distribution.
49 * * Neither the name Intel Corporation nor the names of its
50 * contributors may be used to endorse or promote products derived
51 * from this software without specific prior written permission.
52 *
53 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
54 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
55 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
56 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
57 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
58 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
59 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
60 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
61 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
62 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
63 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
64 *
65 *****************************************************************************/
66 #include <net/mac80211.h>
67
68 #include "iwl-trans.h"
69 #include "iwl-op-mode.h"
70 #include "iwl-fw.h"
71 #include "iwl-debug.h"
72 #include "iwl-csr.h" /* for iwl_mvm_rx_card_state_notif */
73 #include "iwl-io.h" /* for iwl_mvm_rx_card_state_notif */
74 #include "iwl-prph.h"
75 #include "iwl-eeprom-parse.h"
76
77 #include "mvm.h"
78 #include "fw-dbg.h"
79 #include "iwl-phy-db.h"
80
81 #define MVM_UCODE_ALIVE_TIMEOUT HZ
82 #define MVM_UCODE_CALIB_TIMEOUT (2*HZ)
83
84 #define UCODE_VALID_OK cpu_to_le32(0x1)
85
86 struct iwl_mvm_alive_data {
87 bool valid;
88 u32 scd_base_addr;
89 };
90
91 static inline const struct fw_img *
92 iwl_get_ucode_image(struct iwl_mvm *mvm, enum iwl_ucode_type ucode_type)
93 {
94 if (ucode_type >= IWL_UCODE_TYPE_MAX)
95 return NULL;
96
97 return &mvm->fw->img[ucode_type];
98 }
99
100 static int iwl_send_tx_ant_cfg(struct iwl_mvm *mvm, u8 valid_tx_ant)
101 {
102 struct iwl_tx_ant_cfg_cmd tx_ant_cmd = {
103 .valid = cpu_to_le32(valid_tx_ant),
104 };
105
106 IWL_DEBUG_FW(mvm, "select valid tx ant: %u\n", valid_tx_ant);
107 return iwl_mvm_send_cmd_pdu(mvm, TX_ANT_CONFIGURATION_CMD, 0,
108 sizeof(tx_ant_cmd), &tx_ant_cmd);
109 }
110
111 static int iwl_send_rss_cfg_cmd(struct iwl_mvm *mvm)
112 {
113 int i;
114 struct iwl_rss_config_cmd cmd = {
115 .flags = cpu_to_le32(IWL_RSS_ENABLE),
116 .hash_mask = IWL_RSS_HASH_TYPE_IPV4_TCP |
117 IWL_RSS_HASH_TYPE_IPV4_PAYLOAD |
118 IWL_RSS_HASH_TYPE_IPV6_TCP |
119 IWL_RSS_HASH_TYPE_IPV6_PAYLOAD,
120 };
121
122 for (i = 0; i < ARRAY_SIZE(cmd.indirection_table); i++)
123 cmd.indirection_table[i] = i % mvm->trans->num_rx_queues;
124 memcpy(cmd.secret_key, mvm->secret_key, sizeof(cmd.secret_key));
125
126 return iwl_mvm_send_cmd_pdu(mvm, RSS_CONFIG_CMD, 0, sizeof(cmd), &cmd);
127 }
128
129 void iwl_free_fw_paging(struct iwl_mvm *mvm)
130 {
131 int i;
132
133 if (!mvm->fw_paging_db[0].fw_paging_block)
134 return;
135
136 for (i = 0; i < NUM_OF_FW_PAGING_BLOCKS; i++) {
137 if (!mvm->fw_paging_db[i].fw_paging_block) {
138 IWL_DEBUG_FW(mvm,
139 "Paging: block %d already freed, continue to next page\n",
140 i);
141
142 continue;
143 }
144
145 __free_pages(mvm->fw_paging_db[i].fw_paging_block,
146 get_order(mvm->fw_paging_db[i].fw_paging_size));
147 mvm->fw_paging_db[i].fw_paging_block = NULL;
148 }
149 kfree(mvm->trans->paging_download_buf);
150 mvm->trans->paging_download_buf = NULL;
151 mvm->trans->paging_db = NULL;
152
153 memset(mvm->fw_paging_db, 0, sizeof(mvm->fw_paging_db));
154 }
155
156 static int iwl_fill_paging_mem(struct iwl_mvm *mvm, const struct fw_img *image)
157 {
158 int sec_idx, idx;
159 u32 offset = 0;
160
161 /*
162 * find where is the paging image start point:
163 * if CPU2 exist and it's in paging format, then the image looks like:
164 * CPU1 sections (2 or more)
165 * CPU1_CPU2_SEPARATOR_SECTION delimiter - separate between CPU1 to CPU2
166 * CPU2 sections (not paged)
167 * PAGING_SEPARATOR_SECTION delimiter - separate between CPU2
168 * non paged to CPU2 paging sec
169 * CPU2 paging CSS
170 * CPU2 paging image (including instruction and data)
171 */
172 for (sec_idx = 0; sec_idx < IWL_UCODE_SECTION_MAX; sec_idx++) {
173 if (image->sec[sec_idx].offset == PAGING_SEPARATOR_SECTION) {
174 sec_idx++;
175 break;
176 }
177 }
178
179 if (sec_idx >= IWL_UCODE_SECTION_MAX) {
180 IWL_ERR(mvm, "driver didn't find paging image\n");
181 iwl_free_fw_paging(mvm);
182 return -EINVAL;
183 }
184
185 /* copy the CSS block to the dram */
186 IWL_DEBUG_FW(mvm, "Paging: load paging CSS to FW, sec = %d\n",
187 sec_idx);
188
189 memcpy(page_address(mvm->fw_paging_db[0].fw_paging_block),
190 image->sec[sec_idx].data,
191 mvm->fw_paging_db[0].fw_paging_size);
192
193 IWL_DEBUG_FW(mvm,
194 "Paging: copied %d CSS bytes to first block\n",
195 mvm->fw_paging_db[0].fw_paging_size);
196
197 sec_idx++;
198
199 /*
200 * copy the paging blocks to the dram
201 * loop index start from 1 since that CSS block already copied to dram
202 * and CSS index is 0.
203 * loop stop at num_of_paging_blk since that last block is not full.
204 */
205 for (idx = 1; idx < mvm->num_of_paging_blk; idx++) {
206 memcpy(page_address(mvm->fw_paging_db[idx].fw_paging_block),
207 image->sec[sec_idx].data + offset,
208 mvm->fw_paging_db[idx].fw_paging_size);
209
210 IWL_DEBUG_FW(mvm,
211 "Paging: copied %d paging bytes to block %d\n",
212 mvm->fw_paging_db[idx].fw_paging_size,
213 idx);
214
215 offset += mvm->fw_paging_db[idx].fw_paging_size;
216 }
217
218 /* copy the last paging block */
219 if (mvm->num_of_pages_in_last_blk > 0) {
220 memcpy(page_address(mvm->fw_paging_db[idx].fw_paging_block),
221 image->sec[sec_idx].data + offset,
222 FW_PAGING_SIZE * mvm->num_of_pages_in_last_blk);
223
224 IWL_DEBUG_FW(mvm,
225 "Paging: copied %d pages in the last block %d\n",
226 mvm->num_of_pages_in_last_blk, idx);
227 }
228
229 return 0;
230 }
231
232 static int iwl_alloc_fw_paging_mem(struct iwl_mvm *mvm,
233 const struct fw_img *image)
234 {
235 struct page *block;
236 dma_addr_t phys = 0;
237 int blk_idx = 0;
238 int order, num_of_pages;
239 int dma_enabled;
240
241 if (mvm->fw_paging_db[0].fw_paging_block)
242 return 0;
243
244 dma_enabled = is_device_dma_capable(mvm->trans->dev);
245
246 /* ensure BLOCK_2_EXP_SIZE is power of 2 of PAGING_BLOCK_SIZE */
247 BUILD_BUG_ON(BIT(BLOCK_2_EXP_SIZE) != PAGING_BLOCK_SIZE);
248
249 num_of_pages = image->paging_mem_size / FW_PAGING_SIZE;
250 mvm->num_of_paging_blk = ((num_of_pages - 1) /
251 NUM_OF_PAGE_PER_GROUP) + 1;
252
253 mvm->num_of_pages_in_last_blk =
254 num_of_pages -
255 NUM_OF_PAGE_PER_GROUP * (mvm->num_of_paging_blk - 1);
256
257 IWL_DEBUG_FW(mvm,
258 "Paging: allocating mem for %d paging blocks, each block holds 8 pages, last block holds %d pages\n",
259 mvm->num_of_paging_blk,
260 mvm->num_of_pages_in_last_blk);
261
262 /* allocate block of 4Kbytes for paging CSS */
263 order = get_order(FW_PAGING_SIZE);
264 block = alloc_pages(GFP_KERNEL, order);
265 if (!block) {
266 /* free all the previous pages since we failed */
267 iwl_free_fw_paging(mvm);
268 return -ENOMEM;
269 }
270
271 mvm->fw_paging_db[blk_idx].fw_paging_block = block;
272 mvm->fw_paging_db[blk_idx].fw_paging_size = FW_PAGING_SIZE;
273
274 if (dma_enabled) {
275 phys = dma_map_page(mvm->trans->dev, block, 0,
276 PAGE_SIZE << order, DMA_BIDIRECTIONAL);
277 if (dma_mapping_error(mvm->trans->dev, phys)) {
278 /*
279 * free the previous pages and the current one since
280 * we failed to map_page.
281 */
282 iwl_free_fw_paging(mvm);
283 return -ENOMEM;
284 }
285 mvm->fw_paging_db[blk_idx].fw_paging_phys = phys;
286 } else {
287 mvm->fw_paging_db[blk_idx].fw_paging_phys = PAGING_ADDR_SIG |
288 blk_idx << BLOCK_2_EXP_SIZE;
289 }
290
291 IWL_DEBUG_FW(mvm,
292 "Paging: allocated 4K(CSS) bytes (order %d) for firmware paging.\n",
293 order);
294
295 /*
296 * allocate blocks in dram.
297 * since that CSS allocated in fw_paging_db[0] loop start from index 1
298 */
299 for (blk_idx = 1; blk_idx < mvm->num_of_paging_blk + 1; blk_idx++) {
300 /* allocate block of PAGING_BLOCK_SIZE (32K) */
301 order = get_order(PAGING_BLOCK_SIZE);
302 block = alloc_pages(GFP_KERNEL, order);
303 if (!block) {
304 /* free all the previous pages since we failed */
305 iwl_free_fw_paging(mvm);
306 return -ENOMEM;
307 }
308
309 mvm->fw_paging_db[blk_idx].fw_paging_block = block;
310 mvm->fw_paging_db[blk_idx].fw_paging_size = PAGING_BLOCK_SIZE;
311
312 if (dma_enabled) {
313 phys = dma_map_page(mvm->trans->dev, block, 0,
314 PAGE_SIZE << order,
315 DMA_BIDIRECTIONAL);
316 if (dma_mapping_error(mvm->trans->dev, phys)) {
317 /*
318 * free the previous pages and the current one
319 * since we failed to map_page.
320 */
321 iwl_free_fw_paging(mvm);
322 return -ENOMEM;
323 }
324 mvm->fw_paging_db[blk_idx].fw_paging_phys = phys;
325 } else {
326 mvm->fw_paging_db[blk_idx].fw_paging_phys =
327 PAGING_ADDR_SIG |
328 blk_idx << BLOCK_2_EXP_SIZE;
329 }
330
331 IWL_DEBUG_FW(mvm,
332 "Paging: allocated 32K bytes (order %d) for firmware paging.\n",
333 order);
334 }
335
336 return 0;
337 }
338
339 static int iwl_save_fw_paging(struct iwl_mvm *mvm,
340 const struct fw_img *fw)
341 {
342 int ret;
343
344 ret = iwl_alloc_fw_paging_mem(mvm, fw);
345 if (ret)
346 return ret;
347
348 return iwl_fill_paging_mem(mvm, fw);
349 }
350
351 /* send paging cmd to FW in case CPU2 has paging image */
352 static int iwl_send_paging_cmd(struct iwl_mvm *mvm, const struct fw_img *fw)
353 {
354 int blk_idx;
355 __le32 dev_phy_addr;
356 struct iwl_fw_paging_cmd fw_paging_cmd = {
357 .flags =
358 cpu_to_le32(PAGING_CMD_IS_SECURED |
359 PAGING_CMD_IS_ENABLED |
360 (mvm->num_of_pages_in_last_blk <<
361 PAGING_CMD_NUM_OF_PAGES_IN_LAST_GRP_POS)),
362 .block_size = cpu_to_le32(BLOCK_2_EXP_SIZE),
363 .block_num = cpu_to_le32(mvm->num_of_paging_blk),
364 };
365
366 /* loop for for all paging blocks + CSS block */
367 for (blk_idx = 0; blk_idx < mvm->num_of_paging_blk + 1; blk_idx++) {
368 dev_phy_addr =
369 cpu_to_le32(mvm->fw_paging_db[blk_idx].fw_paging_phys >>
370 PAGE_2_EXP_SIZE);
371 fw_paging_cmd.device_phy_addr[blk_idx] = dev_phy_addr;
372 }
373
374 return iwl_mvm_send_cmd_pdu(mvm, iwl_cmd_id(FW_PAGING_BLOCK_CMD,
375 IWL_ALWAYS_LONG_GROUP, 0),
376 0, sizeof(fw_paging_cmd), &fw_paging_cmd);
377 }
378
379 /*
380 * Send paging item cmd to FW in case CPU2 has paging image
381 */
382 static int iwl_trans_get_paging_item(struct iwl_mvm *mvm)
383 {
384 int ret;
385 struct iwl_fw_get_item_cmd fw_get_item_cmd = {
386 .item_id = cpu_to_le32(IWL_FW_ITEM_ID_PAGING),
387 };
388
389 struct iwl_fw_get_item_resp *item_resp;
390 struct iwl_host_cmd cmd = {
391 .id = iwl_cmd_id(FW_GET_ITEM_CMD, IWL_ALWAYS_LONG_GROUP, 0),
392 .flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
393 .data = { &fw_get_item_cmd, },
394 };
395
396 cmd.len[0] = sizeof(struct iwl_fw_get_item_cmd);
397
398 ret = iwl_mvm_send_cmd(mvm, &cmd);
399 if (ret) {
400 IWL_ERR(mvm,
401 "Paging: Failed to send FW_GET_ITEM_CMD cmd (err = %d)\n",
402 ret);
403 return ret;
404 }
405
406 item_resp = (void *)((struct iwl_rx_packet *)cmd.resp_pkt)->data;
407 if (item_resp->item_id != cpu_to_le32(IWL_FW_ITEM_ID_PAGING)) {
408 IWL_ERR(mvm,
409 "Paging: got wrong item in FW_GET_ITEM_CMD resp (item_id = %u)\n",
410 le32_to_cpu(item_resp->item_id));
411 ret = -EIO;
412 goto exit;
413 }
414
415 mvm->trans->paging_download_buf = kzalloc(MAX_PAGING_IMAGE_SIZE,
416 GFP_KERNEL);
417 if (!mvm->trans->paging_download_buf) {
418 ret = -ENOMEM;
419 goto exit;
420 }
421 mvm->trans->paging_req_addr = le32_to_cpu(item_resp->item_val);
422 mvm->trans->paging_db = mvm->fw_paging_db;
423 IWL_DEBUG_FW(mvm,
424 "Paging: got paging request address (paging_req_addr 0x%08x)\n",
425 mvm->trans->paging_req_addr);
426
427 exit:
428 iwl_free_resp(&cmd);
429
430 return ret;
431 }
432
433 static bool iwl_alive_fn(struct iwl_notif_wait_data *notif_wait,
434 struct iwl_rx_packet *pkt, void *data)
435 {
436 struct iwl_mvm *mvm =
437 container_of(notif_wait, struct iwl_mvm, notif_wait);
438 struct iwl_mvm_alive_data *alive_data = data;
439 struct mvm_alive_resp_ver1 *palive1;
440 struct mvm_alive_resp_ver2 *palive2;
441 struct mvm_alive_resp *palive;
442
443 if (iwl_rx_packet_payload_len(pkt) == sizeof(*palive1)) {
444 palive1 = (void *)pkt->data;
445
446 mvm->support_umac_log = false;
447 mvm->error_event_table =
448 le32_to_cpu(palive1->error_event_table_ptr);
449 mvm->log_event_table =
450 le32_to_cpu(palive1->log_event_table_ptr);
451 alive_data->scd_base_addr = le32_to_cpu(palive1->scd_base_ptr);
452
453 alive_data->valid = le16_to_cpu(palive1->status) ==
454 IWL_ALIVE_STATUS_OK;
455 IWL_DEBUG_FW(mvm,
456 "Alive VER1 ucode status 0x%04x revision 0x%01X 0x%01X flags 0x%01X\n",
457 le16_to_cpu(palive1->status), palive1->ver_type,
458 palive1->ver_subtype, palive1->flags);
459 } else if (iwl_rx_packet_payload_len(pkt) == sizeof(*palive2)) {
460 palive2 = (void *)pkt->data;
461
462 mvm->error_event_table =
463 le32_to_cpu(palive2->error_event_table_ptr);
464 mvm->log_event_table =
465 le32_to_cpu(palive2->log_event_table_ptr);
466 alive_data->scd_base_addr = le32_to_cpu(palive2->scd_base_ptr);
467 mvm->umac_error_event_table =
468 le32_to_cpu(palive2->error_info_addr);
469 mvm->sf_space.addr = le32_to_cpu(palive2->st_fwrd_addr);
470 mvm->sf_space.size = le32_to_cpu(palive2->st_fwrd_size);
471
472 alive_data->valid = le16_to_cpu(palive2->status) ==
473 IWL_ALIVE_STATUS_OK;
474 if (mvm->umac_error_event_table)
475 mvm->support_umac_log = true;
476
477 IWL_DEBUG_FW(mvm,
478 "Alive VER2 ucode status 0x%04x revision 0x%01X 0x%01X flags 0x%01X\n",
479 le16_to_cpu(palive2->status), palive2->ver_type,
480 palive2->ver_subtype, palive2->flags);
481
482 IWL_DEBUG_FW(mvm,
483 "UMAC version: Major - 0x%x, Minor - 0x%x\n",
484 palive2->umac_major, palive2->umac_minor);
485 } else if (iwl_rx_packet_payload_len(pkt) == sizeof(*palive)) {
486 palive = (void *)pkt->data;
487
488 mvm->error_event_table =
489 le32_to_cpu(palive->error_event_table_ptr);
490 mvm->log_event_table =
491 le32_to_cpu(palive->log_event_table_ptr);
492 alive_data->scd_base_addr = le32_to_cpu(palive->scd_base_ptr);
493 mvm->umac_error_event_table =
494 le32_to_cpu(palive->error_info_addr);
495 mvm->sf_space.addr = le32_to_cpu(palive->st_fwrd_addr);
496 mvm->sf_space.size = le32_to_cpu(palive->st_fwrd_size);
497
498 alive_data->valid = le16_to_cpu(palive->status) ==
499 IWL_ALIVE_STATUS_OK;
500 if (mvm->umac_error_event_table)
501 mvm->support_umac_log = true;
502
503 IWL_DEBUG_FW(mvm,
504 "Alive VER3 ucode status 0x%04x revision 0x%01X 0x%01X flags 0x%01X\n",
505 le16_to_cpu(palive->status), palive->ver_type,
506 palive->ver_subtype, palive->flags);
507
508 IWL_DEBUG_FW(mvm,
509 "UMAC version: Major - 0x%x, Minor - 0x%x\n",
510 le32_to_cpu(palive->umac_major),
511 le32_to_cpu(palive->umac_minor));
512 }
513
514 return true;
515 }
516
517 static bool iwl_wait_phy_db_entry(struct iwl_notif_wait_data *notif_wait,
518 struct iwl_rx_packet *pkt, void *data)
519 {
520 struct iwl_phy_db *phy_db = data;
521
522 if (pkt->hdr.cmd != CALIB_RES_NOTIF_PHY_DB) {
523 WARN_ON(pkt->hdr.cmd != INIT_COMPLETE_NOTIF);
524 return true;
525 }
526
527 WARN_ON(iwl_phy_db_set_section(phy_db, pkt, GFP_ATOMIC));
528
529 return false;
530 }
531
532 static int iwl_mvm_load_ucode_wait_alive(struct iwl_mvm *mvm,
533 enum iwl_ucode_type ucode_type)
534 {
535 struct iwl_notification_wait alive_wait;
536 struct iwl_mvm_alive_data alive_data;
537 const struct fw_img *fw;
538 int ret, i;
539 enum iwl_ucode_type old_type = mvm->cur_ucode;
540 static const u16 alive_cmd[] = { MVM_ALIVE };
541 struct iwl_sf_region st_fwrd_space;
542
543 if (ucode_type == IWL_UCODE_REGULAR &&
544 iwl_fw_dbg_conf_usniffer(mvm->fw, FW_DBG_START_FROM_ALIVE) &&
545 !(fw_has_capa(&mvm->fw->ucode_capa,
546 IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED)))
547 fw = iwl_get_ucode_image(mvm, IWL_UCODE_REGULAR_USNIFFER);
548 else
549 fw = iwl_get_ucode_image(mvm, ucode_type);
550 if (WARN_ON(!fw))
551 return -EINVAL;
552 mvm->cur_ucode = ucode_type;
553 mvm->ucode_loaded = false;
554
555 iwl_init_notification_wait(&mvm->notif_wait, &alive_wait,
556 alive_cmd, ARRAY_SIZE(alive_cmd),
557 iwl_alive_fn, &alive_data);
558
559 ret = iwl_trans_start_fw(mvm->trans, fw, ucode_type == IWL_UCODE_INIT);
560 if (ret) {
561 mvm->cur_ucode = old_type;
562 iwl_remove_notification(&mvm->notif_wait, &alive_wait);
563 return ret;
564 }
565
566 /*
567 * Some things may run in the background now, but we
568 * just wait for the ALIVE notification here.
569 */
570 ret = iwl_wait_notification(&mvm->notif_wait, &alive_wait,
571 MVM_UCODE_ALIVE_TIMEOUT);
572 if (ret) {
573 if (mvm->trans->cfg->device_family == IWL_DEVICE_FAMILY_8000)
574 IWL_ERR(mvm,
575 "SecBoot CPU1 Status: 0x%x, CPU2 Status: 0x%x\n",
576 iwl_read_prph(mvm->trans, SB_CPU_1_STATUS),
577 iwl_read_prph(mvm->trans, SB_CPU_2_STATUS));
578 mvm->cur_ucode = old_type;
579 return ret;
580 }
581
582 if (!alive_data.valid) {
583 IWL_ERR(mvm, "Loaded ucode is not valid!\n");
584 mvm->cur_ucode = old_type;
585 return -EIO;
586 }
587
588 /*
589 * update the sdio allocation according to the pointer we get in the
590 * alive notification.
591 */
592 st_fwrd_space.addr = mvm->sf_space.addr;
593 st_fwrd_space.size = mvm->sf_space.size;
594 ret = iwl_trans_update_sf(mvm->trans, &st_fwrd_space);
595 if (ret) {
596 IWL_ERR(mvm, "Failed to update SF size. ret %d\n", ret);
597 return ret;
598 }
599
600 iwl_trans_fw_alive(mvm->trans, alive_data.scd_base_addr);
601
602 /*
603 * configure and operate fw paging mechanism.
604 * driver configures the paging flow only once, CPU2 paging image
605 * included in the IWL_UCODE_INIT image.
606 */
607 if (fw->paging_mem_size) {
608 /*
609 * When dma is not enabled, the driver needs to copy / write
610 * the downloaded / uploaded page to / from the smem.
611 * This gets the location of the place were the pages are
612 * stored.
613 */
614 if (!is_device_dma_capable(mvm->trans->dev)) {
615 ret = iwl_trans_get_paging_item(mvm);
616 if (ret) {
617 IWL_ERR(mvm, "failed to get FW paging item\n");
618 return ret;
619 }
620 }
621
622 ret = iwl_save_fw_paging(mvm, fw);
623 if (ret) {
624 IWL_ERR(mvm, "failed to save the FW paging image\n");
625 return ret;
626 }
627
628 ret = iwl_send_paging_cmd(mvm, fw);
629 if (ret) {
630 IWL_ERR(mvm, "failed to send the paging cmd\n");
631 iwl_free_fw_paging(mvm);
632 return ret;
633 }
634 }
635
636 /*
637 * Note: all the queues are enabled as part of the interface
638 * initialization, but in firmware restart scenarios they
639 * could be stopped, so wake them up. In firmware restart,
640 * mac80211 will have the queues stopped as well until the
641 * reconfiguration completes. During normal startup, they
642 * will be empty.
643 */
644
645 memset(&mvm->queue_info, 0, sizeof(mvm->queue_info));
646 mvm->queue_info[IWL_MVM_CMD_QUEUE].hw_queue_refcount = 1;
647
648 for (i = 0; i < IEEE80211_MAX_QUEUES; i++)
649 atomic_set(&mvm->mac80211_queue_stop_count[i], 0);
650
651 mvm->ucode_loaded = true;
652
653 return 0;
654 }
655
656 static int iwl_send_phy_cfg_cmd(struct iwl_mvm *mvm)
657 {
658 struct iwl_phy_cfg_cmd phy_cfg_cmd;
659 enum iwl_ucode_type ucode_type = mvm->cur_ucode;
660
661 /* Set parameters */
662 phy_cfg_cmd.phy_cfg = cpu_to_le32(iwl_mvm_get_phy_config(mvm));
663 phy_cfg_cmd.calib_control.event_trigger =
664 mvm->fw->default_calib[ucode_type].event_trigger;
665 phy_cfg_cmd.calib_control.flow_trigger =
666 mvm->fw->default_calib[ucode_type].flow_trigger;
667
668 IWL_DEBUG_INFO(mvm, "Sending Phy CFG command: 0x%x\n",
669 phy_cfg_cmd.phy_cfg);
670
671 return iwl_mvm_send_cmd_pdu(mvm, PHY_CONFIGURATION_CMD, 0,
672 sizeof(phy_cfg_cmd), &phy_cfg_cmd);
673 }
674
675 int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm)
676 {
677 struct iwl_notification_wait calib_wait;
678 static const u16 init_complete[] = {
679 INIT_COMPLETE_NOTIF,
680 CALIB_RES_NOTIF_PHY_DB
681 };
682 int ret;
683
684 lockdep_assert_held(&mvm->mutex);
685
686 if (WARN_ON_ONCE(mvm->calibrating))
687 return 0;
688
689 iwl_init_notification_wait(&mvm->notif_wait,
690 &calib_wait,
691 init_complete,
692 ARRAY_SIZE(init_complete),
693 iwl_wait_phy_db_entry,
694 mvm->phy_db);
695
696 /* Will also start the device */
697 ret = iwl_mvm_load_ucode_wait_alive(mvm, IWL_UCODE_INIT);
698 if (ret) {
699 IWL_ERR(mvm, "Failed to start INIT ucode: %d\n", ret);
700 goto error;
701 }
702
703 ret = iwl_send_bt_init_conf(mvm);
704 if (ret)
705 goto error;
706
707 /* Read the NVM only at driver load time, no need to do this twice */
708 if (read_nvm) {
709 /* Read nvm */
710 ret = iwl_nvm_init(mvm, true);
711 if (ret) {
712 IWL_ERR(mvm, "Failed to read NVM: %d\n", ret);
713 goto error;
714 }
715 }
716
717 /* In case we read the NVM from external file, load it to the NIC */
718 if (mvm->nvm_file_name)
719 iwl_mvm_load_nvm_to_nic(mvm);
720
721 ret = iwl_nvm_check_version(mvm->nvm_data, mvm->trans);
722 WARN_ON(ret);
723
724 /*
725 * abort after reading the nvm in case RF Kill is on, we will complete
726 * the init seq later when RF kill will switch to off
727 */
728 if (iwl_mvm_is_radio_hw_killed(mvm)) {
729 IWL_DEBUG_RF_KILL(mvm,
730 "jump over all phy activities due to RF kill\n");
731 iwl_remove_notification(&mvm->notif_wait, &calib_wait);
732 ret = 1;
733 goto out;
734 }
735
736 mvm->calibrating = true;
737
738 /* Send TX valid antennas before triggering calibrations */
739 ret = iwl_send_tx_ant_cfg(mvm, iwl_mvm_get_valid_tx_ant(mvm));
740 if (ret)
741 goto error;
742
743 /*
744 * Send phy configurations command to init uCode
745 * to start the 16.0 uCode init image internal calibrations.
746 */
747 ret = iwl_send_phy_cfg_cmd(mvm);
748 if (ret) {
749 IWL_ERR(mvm, "Failed to run INIT calibrations: %d\n",
750 ret);
751 goto error;
752 }
753
754 /*
755 * Some things may run in the background now, but we
756 * just wait for the calibration complete notification.
757 */
758 ret = iwl_wait_notification(&mvm->notif_wait, &calib_wait,
759 MVM_UCODE_CALIB_TIMEOUT);
760
761 if (ret && iwl_mvm_is_radio_hw_killed(mvm)) {
762 IWL_DEBUG_RF_KILL(mvm, "RFKILL while calibrating.\n");
763 ret = 1;
764 }
765 goto out;
766
767 error:
768 iwl_remove_notification(&mvm->notif_wait, &calib_wait);
769 out:
770 mvm->calibrating = false;
771 if (iwlmvm_mod_params.init_dbg && !mvm->nvm_data) {
772 /* we want to debug INIT and we have no NVM - fake */
773 mvm->nvm_data = kzalloc(sizeof(struct iwl_nvm_data) +
774 sizeof(struct ieee80211_channel) +
775 sizeof(struct ieee80211_rate),
776 GFP_KERNEL);
777 if (!mvm->nvm_data)
778 return -ENOMEM;
779 mvm->nvm_data->bands[0].channels = mvm->nvm_data->channels;
780 mvm->nvm_data->bands[0].n_channels = 1;
781 mvm->nvm_data->bands[0].n_bitrates = 1;
782 mvm->nvm_data->bands[0].bitrates =
783 (void *)mvm->nvm_data->channels + 1;
784 mvm->nvm_data->bands[0].bitrates->hw_value = 10;
785 }
786
787 return ret;
788 }
789
790 static void iwl_mvm_get_shared_mem_conf(struct iwl_mvm *mvm)
791 {
792 struct iwl_host_cmd cmd = {
793 .id = SHARED_MEM_CFG,
794 .flags = CMD_WANT_SKB,
795 .data = { NULL, },
796 .len = { 0, },
797 };
798 struct iwl_rx_packet *pkt;
799 struct iwl_shared_mem_cfg *mem_cfg;
800 u32 i;
801
802 lockdep_assert_held(&mvm->mutex);
803
804 if (WARN_ON(iwl_mvm_send_cmd(mvm, &cmd)))
805 return;
806
807 pkt = cmd.resp_pkt;
808 mem_cfg = (void *)pkt->data;
809
810 mvm->shared_mem_cfg.shared_mem_addr =
811 le32_to_cpu(mem_cfg->shared_mem_addr);
812 mvm->shared_mem_cfg.shared_mem_size =
813 le32_to_cpu(mem_cfg->shared_mem_size);
814 mvm->shared_mem_cfg.sample_buff_addr =
815 le32_to_cpu(mem_cfg->sample_buff_addr);
816 mvm->shared_mem_cfg.sample_buff_size =
817 le32_to_cpu(mem_cfg->sample_buff_size);
818 mvm->shared_mem_cfg.txfifo_addr = le32_to_cpu(mem_cfg->txfifo_addr);
819 for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.txfifo_size); i++)
820 mvm->shared_mem_cfg.txfifo_size[i] =
821 le32_to_cpu(mem_cfg->txfifo_size[i]);
822 for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.rxfifo_size); i++)
823 mvm->shared_mem_cfg.rxfifo_size[i] =
824 le32_to_cpu(mem_cfg->rxfifo_size[i]);
825 mvm->shared_mem_cfg.page_buff_addr =
826 le32_to_cpu(mem_cfg->page_buff_addr);
827 mvm->shared_mem_cfg.page_buff_size =
828 le32_to_cpu(mem_cfg->page_buff_size);
829 IWL_DEBUG_INFO(mvm, "SHARED MEM CFG: got memory offsets/sizes\n");
830
831 iwl_free_resp(&cmd);
832 }
833
834 static int iwl_mvm_config_ltr(struct iwl_mvm *mvm)
835 {
836 struct iwl_ltr_config_cmd cmd = {
837 .flags = cpu_to_le32(LTR_CFG_FLAG_FEATURE_ENABLE),
838 };
839
840 if (!mvm->trans->ltr_enabled)
841 return 0;
842
843 return iwl_mvm_send_cmd_pdu(mvm, LTR_CONFIG, 0,
844 sizeof(cmd), &cmd);
845 }
846
847 int iwl_mvm_up(struct iwl_mvm *mvm)
848 {
849 int ret, i;
850 struct ieee80211_channel *chan;
851 struct cfg80211_chan_def chandef;
852
853 lockdep_assert_held(&mvm->mutex);
854
855 ret = iwl_trans_start_hw(mvm->trans);
856 if (ret)
857 return ret;
858
859 /*
860 * If we haven't completed the run of the init ucode during
861 * module loading, load init ucode now
862 * (for example, if we were in RFKILL)
863 */
864 ret = iwl_run_init_mvm_ucode(mvm, false);
865 if (ret && !iwlmvm_mod_params.init_dbg) {
866 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", ret);
867 /* this can't happen */
868 if (WARN_ON(ret > 0))
869 ret = -ERFKILL;
870 goto error;
871 }
872 if (!iwlmvm_mod_params.init_dbg) {
873 /*
874 * Stop and start the transport without entering low power
875 * mode. This will save the state of other components on the
876 * device that are triggered by the INIT firwmare (MFUART).
877 */
878 _iwl_trans_stop_device(mvm->trans, false);
879 ret = _iwl_trans_start_hw(mvm->trans, false);
880 if (ret)
881 goto error;
882 }
883
884 if (iwlmvm_mod_params.init_dbg)
885 return 0;
886
887 ret = iwl_mvm_load_ucode_wait_alive(mvm, IWL_UCODE_REGULAR);
888 if (ret) {
889 IWL_ERR(mvm, "Failed to start RT ucode: %d\n", ret);
890 goto error;
891 }
892
893 iwl_mvm_get_shared_mem_conf(mvm);
894
895 ret = iwl_mvm_sf_update(mvm, NULL, false);
896 if (ret)
897 IWL_ERR(mvm, "Failed to initialize Smart Fifo\n");
898
899 mvm->fw_dbg_conf = FW_DBG_INVALID;
900 /* if we have a destination, assume EARLY START */
901 if (mvm->fw->dbg_dest_tlv)
902 mvm->fw_dbg_conf = FW_DBG_START_FROM_ALIVE;
903 iwl_mvm_start_fw_dbg_conf(mvm, FW_DBG_START_FROM_ALIVE);
904
905 ret = iwl_send_tx_ant_cfg(mvm, iwl_mvm_get_valid_tx_ant(mvm));
906 if (ret)
907 goto error;
908
909 ret = iwl_send_bt_init_conf(mvm);
910 if (ret)
911 goto error;
912
913 /* Send phy db control command and then phy db calibration*/
914 ret = iwl_send_phy_db_data(mvm->phy_db);
915 if (ret)
916 goto error;
917
918 ret = iwl_send_phy_cfg_cmd(mvm);
919 if (ret)
920 goto error;
921
922 /* Init RSS configuration */
923 if (iwl_mvm_has_new_rx_api(mvm)) {
924 ret = iwl_send_rss_cfg_cmd(mvm);
925 if (ret) {
926 IWL_ERR(mvm, "Failed to configure RSS queues: %d\n",
927 ret);
928 goto error;
929 }
930 }
931
932 /* init the fw <-> mac80211 STA mapping */
933 for (i = 0; i < IWL_MVM_STATION_COUNT; i++)
934 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[i], NULL);
935
936 mvm->tdls_cs.peer.sta_id = IWL_MVM_STATION_COUNT;
937
938 /* reset quota debouncing buffer - 0xff will yield invalid data */
939 memset(&mvm->last_quota_cmd, 0xff, sizeof(mvm->last_quota_cmd));
940
941 /* Add auxiliary station for scanning */
942 ret = iwl_mvm_add_aux_sta(mvm);
943 if (ret)
944 goto error;
945
946 /* Add all the PHY contexts */
947 chan = &mvm->hw->wiphy->bands[IEEE80211_BAND_2GHZ]->channels[0];
948 cfg80211_chandef_create(&chandef, chan, NL80211_CHAN_NO_HT);
949 for (i = 0; i < NUM_PHY_CTX; i++) {
950 /*
951 * The channel used here isn't relevant as it's
952 * going to be overwritten in the other flows.
953 * For now use the first channel we have.
954 */
955 ret = iwl_mvm_phy_ctxt_add(mvm, &mvm->phy_ctxts[i],
956 &chandef, 1, 1);
957 if (ret)
958 goto error;
959 }
960
961 #ifdef CONFIG_THERMAL
962 if (iwl_mvm_is_tt_in_fw(mvm)) {
963 /* in order to give the responsibility of ct-kill and
964 * TX backoff to FW we need to send empty temperature reporting
965 * cmd during init time
966 */
967 iwl_mvm_send_temp_report_ths_cmd(mvm);
968 } else {
969 /* Initialize tx backoffs to the minimal possible */
970 iwl_mvm_tt_tx_backoff(mvm, 0);
971 }
972
973 /* TODO: read the budget from BIOS / Platform NVM */
974 if (iwl_mvm_is_ctdp_supported(mvm) && mvm->cooling_dev.cur_state > 0)
975 ret = iwl_mvm_ctdp_command(mvm, CTDP_CMD_OPERATION_START,
976 mvm->cooling_dev.cur_state);
977 #else
978 /* Initialize tx backoffs to the minimal possible */
979 iwl_mvm_tt_tx_backoff(mvm, 0);
980 #endif
981
982 WARN_ON(iwl_mvm_config_ltr(mvm));
983
984 ret = iwl_mvm_power_update_device(mvm);
985 if (ret)
986 goto error;
987
988 /*
989 * RTNL is not taken during Ct-kill, but we don't need to scan/Tx
990 * anyway, so don't init MCC.
991 */
992 if (!test_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status)) {
993 ret = iwl_mvm_init_mcc(mvm);
994 if (ret)
995 goto error;
996 }
997
998 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
999 mvm->scan_type = IWL_SCAN_TYPE_NOT_SET;
1000 ret = iwl_mvm_config_scan(mvm);
1001 if (ret)
1002 goto error;
1003 }
1004
1005 if (iwl_mvm_is_csum_supported(mvm) &&
1006 mvm->cfg->features & NETIF_F_RXCSUM)
1007 iwl_trans_write_prph(mvm->trans, RX_EN_CSUM, 0x3);
1008
1009 /* allow FW/transport low power modes if not during restart */
1010 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1011 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
1012
1013 IWL_DEBUG_INFO(mvm, "RT uCode started.\n");
1014 return 0;
1015 error:
1016 iwl_mvm_stop_device(mvm);
1017 return ret;
1018 }
1019
1020 int iwl_mvm_load_d3_fw(struct iwl_mvm *mvm)
1021 {
1022 int ret, i;
1023
1024 lockdep_assert_held(&mvm->mutex);
1025
1026 ret = iwl_trans_start_hw(mvm->trans);
1027 if (ret)
1028 return ret;
1029
1030 ret = iwl_mvm_load_ucode_wait_alive(mvm, IWL_UCODE_WOWLAN);
1031 if (ret) {
1032 IWL_ERR(mvm, "Failed to start WoWLAN firmware: %d\n", ret);
1033 goto error;
1034 }
1035
1036 ret = iwl_send_tx_ant_cfg(mvm, iwl_mvm_get_valid_tx_ant(mvm));
1037 if (ret)
1038 goto error;
1039
1040 /* Send phy db control command and then phy db calibration*/
1041 ret = iwl_send_phy_db_data(mvm->phy_db);
1042 if (ret)
1043 goto error;
1044
1045 ret = iwl_send_phy_cfg_cmd(mvm);
1046 if (ret)
1047 goto error;
1048
1049 /* init the fw <-> mac80211 STA mapping */
1050 for (i = 0; i < IWL_MVM_STATION_COUNT; i++)
1051 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[i], NULL);
1052
1053 /* Add auxiliary station for scanning */
1054 ret = iwl_mvm_add_aux_sta(mvm);
1055 if (ret)
1056 goto error;
1057
1058 return 0;
1059 error:
1060 iwl_mvm_stop_device(mvm);
1061 return ret;
1062 }
1063
1064 void iwl_mvm_rx_card_state_notif(struct iwl_mvm *mvm,
1065 struct iwl_rx_cmd_buffer *rxb)
1066 {
1067 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1068 struct iwl_card_state_notif *card_state_notif = (void *)pkt->data;
1069 u32 flags = le32_to_cpu(card_state_notif->flags);
1070
1071 IWL_DEBUG_RF_KILL(mvm, "Card state received: HW:%s SW:%s CT:%s\n",
1072 (flags & HW_CARD_DISABLED) ? "Kill" : "On",
1073 (flags & SW_CARD_DISABLED) ? "Kill" : "On",
1074 (flags & CT_KILL_CARD_DISABLED) ?
1075 "Reached" : "Not reached");
1076 }
1077
1078 void iwl_mvm_rx_mfuart_notif(struct iwl_mvm *mvm,
1079 struct iwl_rx_cmd_buffer *rxb)
1080 {
1081 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1082 struct iwl_mfuart_load_notif *mfuart_notif = (void *)pkt->data;
1083
1084 IWL_DEBUG_INFO(mvm,
1085 "MFUART: installed ver: 0x%08x, external ver: 0x%08x, status: 0x%08x, duration: 0x%08x\n",
1086 le32_to_cpu(mfuart_notif->installed_ver),
1087 le32_to_cpu(mfuart_notif->external_ver),
1088 le32_to_cpu(mfuart_notif->status),
1089 le32_to_cpu(mfuart_notif->duration));
1090 }
Linux kernel - Deliverables
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