1// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
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// Copyright(c) 2021 Intel Corporation. All rights reserved.
7//
8//
9
10#include <sound/sof/stream.h>
11#include <sound/sof/control.h>
12#include <trace/events/sof.h>
13#include "sof-priv.h"
14#include "sof-audio.h"
15#include "ipc3-priv.h"
16#include "ops.h"
17
18typedef void (*ipc3_rx_callback)(struct snd_sof_dev *sdev, void *msg_buf);
19
20#if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_VERBOSE_IPC)
21static void ipc3_log_header(struct device *dev, u8 *text, u32 cmd)
22{
23 u8 *str;
24 u8 *str2 = NULL;
25 u32 glb;
26 u32 type;
27 bool is_sof_ipc_stream_position = false;
28
29 glb = cmd & SOF_GLB_TYPE_MASK;
30 type = cmd & SOF_CMD_TYPE_MASK;
31
32 switch (glb) {
33 case SOF_IPC_GLB_REPLY:
34 str = "GLB_REPLY"; break;
35 case SOF_IPC_GLB_COMPOUND:
36 str = "GLB_COMPOUND"; break;
37 case SOF_IPC_GLB_TPLG_MSG:
38 str = "GLB_TPLG_MSG";
39 switch (type) {
40 case SOF_IPC_TPLG_COMP_NEW:
41 str2 = "COMP_NEW"; break;
42 case SOF_IPC_TPLG_COMP_FREE:
43 str2 = "COMP_FREE"; break;
44 case SOF_IPC_TPLG_COMP_CONNECT:
45 str2 = "COMP_CONNECT"; break;
46 case SOF_IPC_TPLG_PIPE_NEW:
47 str2 = "PIPE_NEW"; break;
48 case SOF_IPC_TPLG_PIPE_FREE:
49 str2 = "PIPE_FREE"; break;
50 case SOF_IPC_TPLG_PIPE_CONNECT:
51 str2 = "PIPE_CONNECT"; break;
52 case SOF_IPC_TPLG_PIPE_COMPLETE:
53 str2 = "PIPE_COMPLETE"; break;
54 case SOF_IPC_TPLG_BUFFER_NEW:
55 str2 = "BUFFER_NEW"; break;
56 case SOF_IPC_TPLG_BUFFER_FREE:
57 str2 = "BUFFER_FREE"; break;
58 default:
59 str2 = "unknown type"; break;
60 }
61 break;
62 case SOF_IPC_GLB_PM_MSG:
63 str = "GLB_PM_MSG";
64 switch (type) {
65 case SOF_IPC_PM_CTX_SAVE:
66 str2 = "CTX_SAVE"; break;
67 case SOF_IPC_PM_CTX_RESTORE:
68 str2 = "CTX_RESTORE"; break;
69 case SOF_IPC_PM_CTX_SIZE:
70 str2 = "CTX_SIZE"; break;
71 case SOF_IPC_PM_CLK_SET:
72 str2 = "CLK_SET"; break;
73 case SOF_IPC_PM_CLK_GET:
74 str2 = "CLK_GET"; break;
75 case SOF_IPC_PM_CLK_REQ:
76 str2 = "CLK_REQ"; break;
77 case SOF_IPC_PM_CORE_ENABLE:
78 str2 = "CORE_ENABLE"; break;
79 case SOF_IPC_PM_GATE:
80 str2 = "GATE"; break;
81 default:
82 str2 = "unknown type"; break;
83 }
84 break;
85 case SOF_IPC_GLB_COMP_MSG:
86 str = "GLB_COMP_MSG";
87 switch (type) {
88 case SOF_IPC_COMP_SET_VALUE:
89 str2 = "SET_VALUE"; break;
90 case SOF_IPC_COMP_GET_VALUE:
91 str2 = "GET_VALUE"; break;
92 case SOF_IPC_COMP_SET_DATA:
93 str2 = "SET_DATA"; break;
94 case SOF_IPC_COMP_GET_DATA:
95 str2 = "GET_DATA"; break;
96 default:
97 str2 = "unknown type"; break;
98 }
99 break;
100 case SOF_IPC_GLB_STREAM_MSG:
101 str = "GLB_STREAM_MSG";
102 switch (type) {
103 case SOF_IPC_STREAM_PCM_PARAMS:
104 str2 = "PCM_PARAMS"; break;
105 case SOF_IPC_STREAM_PCM_PARAMS_REPLY:
106 str2 = "PCM_REPLY"; break;
107 case SOF_IPC_STREAM_PCM_FREE:
108 str2 = "PCM_FREE"; break;
109 case SOF_IPC_STREAM_TRIG_START:
110 str2 = "TRIG_START"; break;
111 case SOF_IPC_STREAM_TRIG_STOP:
112 str2 = "TRIG_STOP"; break;
113 case SOF_IPC_STREAM_TRIG_PAUSE:
114 str2 = "TRIG_PAUSE"; break;
115 case SOF_IPC_STREAM_TRIG_RELEASE:
116 str2 = "TRIG_RELEASE"; break;
117 case SOF_IPC_STREAM_TRIG_DRAIN:
118 str2 = "TRIG_DRAIN"; break;
119 case SOF_IPC_STREAM_TRIG_XRUN:
120 str2 = "TRIG_XRUN"; break;
121 case SOF_IPC_STREAM_POSITION:
122 is_sof_ipc_stream_position = true;
123 str2 = "POSITION"; break;
124 case SOF_IPC_STREAM_VORBIS_PARAMS:
125 str2 = "VORBIS_PARAMS"; break;
126 case SOF_IPC_STREAM_VORBIS_FREE:
127 str2 = "VORBIS_FREE"; break;
128 default:
129 str2 = "unknown type"; break;
130 }
131 break;
132 case SOF_IPC_FW_READY:
133 str = "FW_READY"; break;
134 case SOF_IPC_GLB_DAI_MSG:
135 str = "GLB_DAI_MSG";
136 switch (type) {
137 case SOF_IPC_DAI_CONFIG:
138 str2 = "CONFIG"; break;
139 case SOF_IPC_DAI_LOOPBACK:
140 str2 = "LOOPBACK"; break;
141 default:
142 str2 = "unknown type"; break;
143 }
144 break;
145 case SOF_IPC_GLB_TRACE_MSG:
146 str = "GLB_TRACE_MSG";
147 switch (type) {
148 case SOF_IPC_TRACE_DMA_PARAMS:
149 str2 = "DMA_PARAMS"; break;
150 case SOF_IPC_TRACE_DMA_POSITION:
151 if (!sof_debug_check_flag(SOF_DBG_PRINT_DMA_POSITION_UPDATE_LOGS))
152 return;
153 str2 = "DMA_POSITION"; break;
154 case SOF_IPC_TRACE_DMA_PARAMS_EXT:
155 str2 = "DMA_PARAMS_EXT"; break;
156 case SOF_IPC_TRACE_FILTER_UPDATE:
157 str2 = "FILTER_UPDATE"; break;
158 case SOF_IPC_TRACE_DMA_FREE:
159 str2 = "DMA_FREE"; break;
160 default:
161 str2 = "unknown type"; break;
162 }
163 break;
164 case SOF_IPC_GLB_TEST_MSG:
165 str = "GLB_TEST_MSG";
166 switch (type) {
167 case SOF_IPC_TEST_IPC_FLOOD:
168 str2 = "IPC_FLOOD"; break;
169 default:
170 str2 = "unknown type"; break;
171 }
172 break;
173 case SOF_IPC_GLB_DEBUG:
174 str = "GLB_DEBUG";
175 switch (type) {
176 case SOF_IPC_DEBUG_MEM_USAGE:
177 str2 = "MEM_USAGE"; break;
178 default:
179 str2 = "unknown type"; break;
180 }
181 break;
182 case SOF_IPC_GLB_PROBE:
183 str = "GLB_PROBE";
184 switch (type) {
185 case SOF_IPC_PROBE_INIT:
186 str2 = "INIT"; break;
187 case SOF_IPC_PROBE_DEINIT:
188 str2 = "DEINIT"; break;
189 case SOF_IPC_PROBE_DMA_ADD:
190 str2 = "DMA_ADD"; break;
191 case SOF_IPC_PROBE_DMA_INFO:
192 str2 = "DMA_INFO"; break;
193 case SOF_IPC_PROBE_DMA_REMOVE:
194 str2 = "DMA_REMOVE"; break;
195 case SOF_IPC_PROBE_POINT_ADD:
196 str2 = "POINT_ADD"; break;
197 case SOF_IPC_PROBE_POINT_INFO:
198 str2 = "POINT_INFO"; break;
199 case SOF_IPC_PROBE_POINT_REMOVE:
200 str2 = "POINT_REMOVE"; break;
201 default:
202 str2 = "unknown type"; break;
203 }
204 break;
205 default:
206 str = "unknown GLB command"; break;
207 }
208
209 if (str2) {
210 if (is_sof_ipc_stream_position)
211 trace_sof_stream_position_ipc_rx(dev);
212 else
213 dev_dbg(dev, "%s: 0x%x: %s: %s\n", text, cmd, str, str2);
214 } else {
215 dev_dbg(dev, "%s: 0x%x: %s\n", text, cmd, str);
216 }
217}
218#else
219static inline void ipc3_log_header(struct device *dev, u8 *text, u32 cmd)
220{
221 if ((cmd & SOF_GLB_TYPE_MASK) != SOF_IPC_GLB_TRACE_MSG)
222 dev_dbg(dev, "%s: 0x%x\n", text, cmd);
223}
224#endif
225
226static void sof_ipc3_dump_payload(struct snd_sof_dev *sdev,
227 void *ipc_data, size_t size)
228{
229 printk(KERN_DEBUG "Size of payload following the header: %zu\n", size);
230 print_hex_dump_debug("Message payload: ", DUMP_PREFIX_OFFSET,
231 16, 4, ipc_data, size, false);
232}
233
234static int sof_ipc3_get_reply(struct snd_sof_dev *sdev)
235{
236 struct snd_sof_ipc_msg *msg = sdev->msg;
237 struct sof_ipc_reply *reply;
238 int ret = 0;
239
240 /* get the generic reply */
241 reply = msg->reply_data;
242 snd_sof_dsp_mailbox_read(sdev, offset: sdev->host_box.offset, dest: reply, bytes: sizeof(*reply));
243
244 if (reply->error < 0)
245 return reply->error;
246
247 if (!reply->hdr.size) {
248 /* Reply should always be >= sizeof(struct sof_ipc_reply) */
249 if (msg->reply_size)
250 dev_err(sdev->dev,
251 "empty reply received, expected %zu bytes\n",
252 msg->reply_size);
253 else
254 dev_err(sdev->dev, "empty reply received\n");
255
256 return -EINVAL;
257 }
258
259 if (msg->reply_size > 0) {
260 if (reply->hdr.size == msg->reply_size) {
261 ret = 0;
262 } else if (reply->hdr.size < msg->reply_size) {
263 dev_dbg(sdev->dev,
264 "reply size (%u) is less than expected (%zu)\n",
265 reply->hdr.size, msg->reply_size);
266
267 msg->reply_size = reply->hdr.size;
268 ret = 0;
269 } else {
270 dev_err(sdev->dev,
271 "reply size (%u) exceeds the buffer size (%zu)\n",
272 reply->hdr.size, msg->reply_size);
273 ret = -EINVAL;
274 }
275
276 /*
277 * get the full message if reply->hdr.size <= msg->reply_size
278 * and the reply->hdr.size > sizeof(struct sof_ipc_reply)
279 */
280 if (!ret && msg->reply_size > sizeof(*reply))
281 snd_sof_dsp_mailbox_read(sdev, offset: sdev->host_box.offset,
282 dest: msg->reply_data, bytes: msg->reply_size);
283 }
284
285 return ret;
286}
287
288/* wait for IPC message reply */
289static int ipc3_wait_tx_done(struct snd_sof_ipc *ipc, void *reply_data)
290{
291 struct snd_sof_ipc_msg *msg = &ipc->msg;
292 struct sof_ipc_cmd_hdr *hdr = msg->msg_data;
293 struct snd_sof_dev *sdev = ipc->sdev;
294 int ret;
295
296 /* wait for DSP IPC completion */
297 ret = wait_event_timeout(msg->waitq, msg->ipc_complete,
298 msecs_to_jiffies(sdev->ipc_timeout));
299
300 if (ret == 0) {
301 dev_err(sdev->dev,
302 "ipc tx timed out for %#x (msg/reply size: %d/%zu)\n",
303 hdr->cmd, hdr->size, msg->reply_size);
304 snd_sof_handle_fw_exception(sdev: ipc->sdev, msg: "IPC timeout");
305 ret = -ETIMEDOUT;
306 } else {
307 ret = msg->reply_error;
308 if (ret < 0) {
309 dev_err(sdev->dev,
310 "ipc tx error for %#x (msg/reply size: %d/%zu): %d\n",
311 hdr->cmd, hdr->size, msg->reply_size, ret);
312 } else {
313 if (sof_debug_check_flag(SOF_DBG_PRINT_IPC_SUCCESS_LOGS))
314 ipc3_log_header(dev: sdev->dev, text: "ipc tx succeeded", cmd: hdr->cmd);
315 if (reply_data && msg->reply_size)
316 /* copy the data returned from DSP */
317 memcpy(reply_data, msg->reply_data,
318 msg->reply_size);
319 }
320
321 /* re-enable dumps after successful IPC tx */
322 if (sdev->ipc_dump_printed) {
323 sdev->dbg_dump_printed = false;
324 sdev->ipc_dump_printed = false;
325 }
326 }
327
328 return ret;
329}
330
331/* send IPC message from host to DSP */
332static int ipc3_tx_msg_unlocked(struct snd_sof_ipc *ipc,
333 void *msg_data, size_t msg_bytes,
334 void *reply_data, size_t reply_bytes)
335{
336 struct sof_ipc_cmd_hdr *hdr = msg_data;
337 struct snd_sof_dev *sdev = ipc->sdev;
338 int ret;
339
340 ipc3_log_header(dev: sdev->dev, text: "ipc tx", cmd: hdr->cmd);
341
342 ret = sof_ipc_send_msg(sdev, msg_data, msg_bytes, reply_bytes);
343
344 if (ret) {
345 dev_err_ratelimited(sdev->dev,
346 "%s: ipc message send for %#x failed: %d\n",
347 __func__, hdr->cmd, ret);
348 return ret;
349 }
350
351 /* now wait for completion */
352 return ipc3_wait_tx_done(ipc, reply_data);
353}
354
355static int sof_ipc3_tx_msg(struct snd_sof_dev *sdev, void *msg_data, size_t msg_bytes,
356 void *reply_data, size_t reply_bytes, bool no_pm)
357{
358 struct snd_sof_ipc *ipc = sdev->ipc;
359 int ret;
360
361 if (!msg_data || msg_bytes < sizeof(struct sof_ipc_cmd_hdr)) {
362 dev_err_ratelimited(sdev->dev, "No IPC message to send\n");
363 return -EINVAL;
364 }
365
366 if (!no_pm) {
367 const struct sof_dsp_power_state target_state = {
368 .state = SOF_DSP_PM_D0,
369 };
370
371 /* ensure the DSP is in D0 before sending a new IPC */
372 ret = snd_sof_dsp_set_power_state(sdev, target_state: &target_state);
373 if (ret < 0) {
374 dev_err(sdev->dev, "%s: resuming DSP failed: %d\n",
375 __func__, ret);
376 return ret;
377 }
378 }
379
380 /* Serialise IPC TX */
381 mutex_lock(&ipc->tx_mutex);
382
383 ret = ipc3_tx_msg_unlocked(ipc, msg_data, msg_bytes, reply_data, reply_bytes);
384
385 if (sof_debug_check_flag(SOF_DBG_DUMP_IPC_MESSAGE_PAYLOAD)) {
386 size_t payload_bytes, header_bytes;
387 char *payload = NULL;
388
389 /* payload is indicated by non zero msg/reply_bytes */
390 if (msg_bytes > sizeof(struct sof_ipc_cmd_hdr)) {
391 payload = msg_data;
392
393 header_bytes = sizeof(struct sof_ipc_cmd_hdr);
394 payload_bytes = msg_bytes - header_bytes;
395 } else if (reply_bytes > sizeof(struct sof_ipc_reply)) {
396 payload = reply_data;
397
398 header_bytes = sizeof(struct sof_ipc_reply);
399 payload_bytes = reply_bytes - header_bytes;
400 }
401
402 if (payload) {
403 payload += header_bytes;
404 sof_ipc3_dump_payload(sdev, ipc_data: payload, size: payload_bytes);
405 }
406 }
407
408 mutex_unlock(lock: &ipc->tx_mutex);
409
410 return ret;
411}
412
413static int sof_ipc3_set_get_data(struct snd_sof_dev *sdev, void *data, size_t data_bytes,
414 bool set)
415{
416 size_t msg_bytes, hdr_bytes, payload_size, send_bytes;
417 struct sof_ipc_ctrl_data *cdata = data;
418 struct sof_ipc_ctrl_data *cdata_chunk;
419 struct snd_sof_ipc *ipc = sdev->ipc;
420 size_t offset = 0;
421 u8 *src, *dst;
422 u32 num_msg;
423 int ret = 0;
424 int i;
425
426 if (!cdata || data_bytes < sizeof(*cdata))
427 return -EINVAL;
428
429 if ((cdata->rhdr.hdr.cmd & SOF_GLB_TYPE_MASK) != SOF_IPC_GLB_COMP_MSG) {
430 dev_err(sdev->dev, "%s: Not supported message type of %#x\n",
431 __func__, cdata->rhdr.hdr.cmd);
432 return -EINVAL;
433 }
434
435 /* send normal size ipc in one part */
436 if (cdata->rhdr.hdr.size <= ipc->max_payload_size)
437 return sof_ipc3_tx_msg(sdev, msg_data: cdata, msg_bytes: cdata->rhdr.hdr.size,
438 reply_data: cdata, reply_bytes: cdata->rhdr.hdr.size, no_pm: false);
439
440 cdata_chunk = kzalloc(size: ipc->max_payload_size, GFP_KERNEL);
441 if (!cdata_chunk)
442 return -ENOMEM;
443
444 switch (cdata->type) {
445 case SOF_CTRL_TYPE_VALUE_CHAN_GET:
446 case SOF_CTRL_TYPE_VALUE_CHAN_SET:
447 hdr_bytes = sizeof(struct sof_ipc_ctrl_data);
448 if (set) {
449 src = (u8 *)cdata->chanv;
450 dst = (u8 *)cdata_chunk->chanv;
451 } else {
452 src = (u8 *)cdata_chunk->chanv;
453 dst = (u8 *)cdata->chanv;
454 }
455 break;
456 case SOF_CTRL_TYPE_DATA_GET:
457 case SOF_CTRL_TYPE_DATA_SET:
458 hdr_bytes = sizeof(struct sof_ipc_ctrl_data) + sizeof(struct sof_abi_hdr);
459 if (set) {
460 src = (u8 *)cdata->data->data;
461 dst = (u8 *)cdata_chunk->data->data;
462 } else {
463 src = (u8 *)cdata_chunk->data->data;
464 dst = (u8 *)cdata->data->data;
465 }
466 break;
467 default:
468 kfree(objp: cdata_chunk);
469 return -EINVAL;
470 }
471
472 msg_bytes = cdata->rhdr.hdr.size - hdr_bytes;
473 payload_size = ipc->max_payload_size - hdr_bytes;
474 num_msg = DIV_ROUND_UP(msg_bytes, payload_size);
475
476 /* copy the header data */
477 memcpy(cdata_chunk, cdata, hdr_bytes);
478
479 /* Serialise IPC TX */
480 mutex_lock(&sdev->ipc->tx_mutex);
481
482 /* copy the payload data in a loop */
483 for (i = 0; i < num_msg; i++) {
484 send_bytes = min(msg_bytes, payload_size);
485 cdata_chunk->num_elems = send_bytes;
486 cdata_chunk->rhdr.hdr.size = hdr_bytes + send_bytes;
487 cdata_chunk->msg_index = i;
488 msg_bytes -= send_bytes;
489 cdata_chunk->elems_remaining = msg_bytes;
490
491 if (set)
492 memcpy(dst, src + offset, send_bytes);
493
494 ret = ipc3_tx_msg_unlocked(ipc: sdev->ipc,
495 msg_data: cdata_chunk, msg_bytes: cdata_chunk->rhdr.hdr.size,
496 reply_data: cdata_chunk, reply_bytes: cdata_chunk->rhdr.hdr.size);
497 if (ret < 0)
498 break;
499
500 if (!set)
501 memcpy(dst + offset, src, send_bytes);
502
503 offset += payload_size;
504 }
505
506 if (sof_debug_check_flag(SOF_DBG_DUMP_IPC_MESSAGE_PAYLOAD)) {
507 size_t header_bytes = sizeof(struct sof_ipc_reply);
508 char *payload = (char *)cdata;
509
510 payload += header_bytes;
511 sof_ipc3_dump_payload(sdev, ipc_data: payload, size: data_bytes - header_bytes);
512 }
513
514 mutex_unlock(lock: &sdev->ipc->tx_mutex);
515
516 kfree(objp: cdata_chunk);
517
518 return ret;
519}
520
521int sof_ipc3_get_ext_windows(struct snd_sof_dev *sdev,
522 const struct sof_ipc_ext_data_hdr *ext_hdr)
523{
524 const struct sof_ipc_window *w =
525 container_of(ext_hdr, struct sof_ipc_window, ext_hdr);
526
527 if (w->num_windows == 0 || w->num_windows > SOF_IPC_MAX_ELEMS)
528 return -EINVAL;
529
530 if (sdev->info_window) {
531 if (memcmp(p: sdev->info_window, q: w, size: ext_hdr->hdr.size)) {
532 dev_err(sdev->dev, "mismatch between window descriptor from extended manifest and mailbox");
533 return -EINVAL;
534 }
535 return 0;
536 }
537
538 /* keep a local copy of the data */
539 sdev->info_window = devm_kmemdup(dev: sdev->dev, src: w, len: ext_hdr->hdr.size, GFP_KERNEL);
540 if (!sdev->info_window)
541 return -ENOMEM;
542
543 return 0;
544}
545
546int sof_ipc3_get_cc_info(struct snd_sof_dev *sdev,
547 const struct sof_ipc_ext_data_hdr *ext_hdr)
548{
549 int ret;
550
551 const struct sof_ipc_cc_version *cc =
552 container_of(ext_hdr, struct sof_ipc_cc_version, ext_hdr);
553
554 if (sdev->cc_version) {
555 if (memcmp(p: sdev->cc_version, q: cc, size: cc->ext_hdr.hdr.size)) {
556 dev_err(sdev->dev,
557 "Receive diverged cc_version descriptions");
558 return -EINVAL;
559 }
560 return 0;
561 }
562
563 dev_dbg(sdev->dev,
564 "Firmware info: used compiler %s %d:%d:%d%s used optimization flags %s\n",
565 cc->name, cc->major, cc->minor, cc->micro, cc->desc, cc->optim);
566
567 /* create read-only cc_version debugfs to store compiler version info */
568 /* use local copy of the cc_version to prevent data corruption */
569 if (sdev->first_boot) {
570 sdev->cc_version = devm_kmemdup(dev: sdev->dev, src: cc, len: cc->ext_hdr.hdr.size, GFP_KERNEL);
571 if (!sdev->cc_version)
572 return -ENOMEM;
573
574 ret = snd_sof_debugfs_buf_item(sdev, base: sdev->cc_version,
575 size: cc->ext_hdr.hdr.size,
576 name: "cc_version", mode: 0444);
577
578 /* errors are only due to memory allocation, not debugfs */
579 if (ret < 0) {
580 dev_err(sdev->dev, "snd_sof_debugfs_buf_item failed\n");
581 return ret;
582 }
583 }
584
585 return 0;
586}
587
588/* parse the extended FW boot data structures from FW boot message */
589static int ipc3_fw_parse_ext_data(struct snd_sof_dev *sdev, u32 offset)
590{
591 struct sof_ipc_ext_data_hdr *ext_hdr;
592 void *ext_data;
593 int ret = 0;
594
595 ext_data = kzalloc(PAGE_SIZE, GFP_KERNEL);
596 if (!ext_data)
597 return -ENOMEM;
598
599 /* get first header */
600 snd_sof_dsp_block_read(sdev, blk_type: SOF_FW_BLK_TYPE_SRAM, offset, dest: ext_data,
601 bytes: sizeof(*ext_hdr));
602 ext_hdr = ext_data;
603
604 while (ext_hdr->hdr.cmd == SOF_IPC_FW_READY) {
605 /* read in ext structure */
606 snd_sof_dsp_block_read(sdev, blk_type: SOF_FW_BLK_TYPE_SRAM,
607 offset: offset + sizeof(*ext_hdr),
608 dest: (void *)((u8 *)ext_data + sizeof(*ext_hdr)),
609 bytes: ext_hdr->hdr.size - sizeof(*ext_hdr));
610
611 dev_dbg(sdev->dev, "found ext header type %d size 0x%x\n",
612 ext_hdr->type, ext_hdr->hdr.size);
613
614 /* process structure data */
615 switch (ext_hdr->type) {
616 case SOF_IPC_EXT_WINDOW:
617 ret = sof_ipc3_get_ext_windows(sdev, ext_hdr);
618 break;
619 case SOF_IPC_EXT_CC_INFO:
620 ret = sof_ipc3_get_cc_info(sdev, ext_hdr);
621 break;
622 case SOF_IPC_EXT_UNUSED:
623 case SOF_IPC_EXT_PROBE_INFO:
624 case SOF_IPC_EXT_USER_ABI_INFO:
625 /* They are supported but we don't do anything here */
626 break;
627 default:
628 dev_info(sdev->dev, "unknown ext header type %d size 0x%x\n",
629 ext_hdr->type, ext_hdr->hdr.size);
630 ret = 0;
631 break;
632 }
633
634 if (ret < 0) {
635 dev_err(sdev->dev, "Failed to parse ext data type %d\n",
636 ext_hdr->type);
637 break;
638 }
639
640 /* move to next header */
641 offset += ext_hdr->hdr.size;
642 snd_sof_dsp_block_read(sdev, blk_type: SOF_FW_BLK_TYPE_SRAM, offset, dest: ext_data,
643 bytes: sizeof(*ext_hdr));
644 ext_hdr = ext_data;
645 }
646
647 kfree(objp: ext_data);
648 return ret;
649}
650
651static void ipc3_get_windows(struct snd_sof_dev *sdev)
652{
653 struct sof_ipc_window_elem *elem;
654 u32 outbox_offset = 0;
655 u32 stream_offset = 0;
656 u32 inbox_offset = 0;
657 u32 outbox_size = 0;
658 u32 stream_size = 0;
659 u32 inbox_size = 0;
660 u32 debug_size = 0;
661 u32 debug_offset = 0;
662 int window_offset;
663 int i;
664
665 if (!sdev->info_window) {
666 dev_err(sdev->dev, "%s: No window info present\n", __func__);
667 return;
668 }
669
670 for (i = 0; i < sdev->info_window->num_windows; i++) {
671 elem = &sdev->info_window->window[i];
672
673 window_offset = snd_sof_dsp_get_window_offset(sdev, id: elem->id);
674 if (window_offset < 0) {
675 dev_warn(sdev->dev, "No offset for window %d\n", elem->id);
676 continue;
677 }
678
679 switch (elem->type) {
680 case SOF_IPC_REGION_UPBOX:
681 inbox_offset = window_offset + elem->offset;
682 inbox_size = elem->size;
683 snd_sof_debugfs_add_region_item(sdev, blk_type: SOF_FW_BLK_TYPE_SRAM,
684 offset: inbox_offset,
685 size: elem->size, name: "inbox",
686 access_type: SOF_DEBUGFS_ACCESS_D0_ONLY);
687 break;
688 case SOF_IPC_REGION_DOWNBOX:
689 outbox_offset = window_offset + elem->offset;
690 outbox_size = elem->size;
691 snd_sof_debugfs_add_region_item(sdev, blk_type: SOF_FW_BLK_TYPE_SRAM,
692 offset: outbox_offset,
693 size: elem->size, name: "outbox",
694 access_type: SOF_DEBUGFS_ACCESS_D0_ONLY);
695 break;
696 case SOF_IPC_REGION_TRACE:
697 snd_sof_debugfs_add_region_item(sdev, blk_type: SOF_FW_BLK_TYPE_SRAM,
698 offset: window_offset + elem->offset,
699 size: elem->size, name: "etrace",
700 access_type: SOF_DEBUGFS_ACCESS_D0_ONLY);
701 break;
702 case SOF_IPC_REGION_DEBUG:
703 debug_offset = window_offset + elem->offset;
704 debug_size = elem->size;
705 snd_sof_debugfs_add_region_item(sdev, blk_type: SOF_FW_BLK_TYPE_SRAM,
706 offset: window_offset + elem->offset,
707 size: elem->size, name: "debug",
708 access_type: SOF_DEBUGFS_ACCESS_D0_ONLY);
709 break;
710 case SOF_IPC_REGION_STREAM:
711 stream_offset = window_offset + elem->offset;
712 stream_size = elem->size;
713 snd_sof_debugfs_add_region_item(sdev, blk_type: SOF_FW_BLK_TYPE_SRAM,
714 offset: stream_offset,
715 size: elem->size, name: "stream",
716 access_type: SOF_DEBUGFS_ACCESS_D0_ONLY);
717 break;
718 case SOF_IPC_REGION_REGS:
719 snd_sof_debugfs_add_region_item(sdev, blk_type: SOF_FW_BLK_TYPE_SRAM,
720 offset: window_offset + elem->offset,
721 size: elem->size, name: "regs",
722 access_type: SOF_DEBUGFS_ACCESS_D0_ONLY);
723 break;
724 case SOF_IPC_REGION_EXCEPTION:
725 sdev->dsp_oops_offset = window_offset + elem->offset;
726 snd_sof_debugfs_add_region_item(sdev, blk_type: SOF_FW_BLK_TYPE_SRAM,
727 offset: window_offset + elem->offset,
728 size: elem->size, name: "exception",
729 access_type: SOF_DEBUGFS_ACCESS_D0_ONLY);
730 break;
731 default:
732 dev_err(sdev->dev, "%s: Illegal window info: %u\n",
733 __func__, elem->type);
734 return;
735 }
736 }
737
738 if (outbox_size == 0 || inbox_size == 0) {
739 dev_err(sdev->dev, "%s: Illegal mailbox window\n", __func__);
740 return;
741 }
742
743 sdev->dsp_box.offset = inbox_offset;
744 sdev->dsp_box.size = inbox_size;
745
746 sdev->host_box.offset = outbox_offset;
747 sdev->host_box.size = outbox_size;
748
749 sdev->stream_box.offset = stream_offset;
750 sdev->stream_box.size = stream_size;
751
752 sdev->debug_box.offset = debug_offset;
753 sdev->debug_box.size = debug_size;
754
755 dev_dbg(sdev->dev, " mailbox upstream 0x%x - size 0x%x\n",
756 inbox_offset, inbox_size);
757 dev_dbg(sdev->dev, " mailbox downstream 0x%x - size 0x%x\n",
758 outbox_offset, outbox_size);
759 dev_dbg(sdev->dev, " stream region 0x%x - size 0x%x\n",
760 stream_offset, stream_size);
761 dev_dbg(sdev->dev, " debug region 0x%x - size 0x%x\n",
762 debug_offset, debug_size);
763}
764
765static int ipc3_init_reply_data_buffer(struct snd_sof_dev *sdev)
766{
767 struct snd_sof_ipc_msg *msg = &sdev->ipc->msg;
768
769 msg->reply_data = devm_kzalloc(dev: sdev->dev, SOF_IPC_MSG_MAX_SIZE, GFP_KERNEL);
770 if (!msg->reply_data)
771 return -ENOMEM;
772
773 sdev->ipc->max_payload_size = SOF_IPC_MSG_MAX_SIZE;
774
775 return 0;
776}
777
778int sof_ipc3_validate_fw_version(struct snd_sof_dev *sdev)
779{
780 struct sof_ipc_fw_ready *ready = &sdev->fw_ready;
781 struct sof_ipc_fw_version *v = &ready->version;
782
783 dev_info(sdev->dev,
784 "Firmware info: version %d:%d:%d-%s\n", v->major, v->minor,
785 v->micro, v->tag);
786 dev_info(sdev->dev,
787 "Firmware: ABI %d:%d:%d Kernel ABI %d:%d:%d\n",
788 SOF_ABI_VERSION_MAJOR(v->abi_version),
789 SOF_ABI_VERSION_MINOR(v->abi_version),
790 SOF_ABI_VERSION_PATCH(v->abi_version),
791 SOF_ABI_MAJOR, SOF_ABI_MINOR, SOF_ABI_PATCH);
792
793 if (SOF_ABI_VERSION_INCOMPATIBLE(SOF_ABI_VERSION, v->abi_version)) {
794 dev_err(sdev->dev, "incompatible FW ABI version\n");
795 return -EINVAL;
796 }
797
798 if (IS_ENABLED(CONFIG_SND_SOC_SOF_STRICT_ABI_CHECKS) &&
799 SOF_ABI_VERSION_MINOR(v->abi_version) > SOF_ABI_MINOR) {
800 dev_err(sdev->dev, "FW ABI is more recent than kernel\n");
801 return -EINVAL;
802 }
803
804 if (ready->flags & SOF_IPC_INFO_BUILD) {
805 dev_info(sdev->dev,
806 "Firmware debug build %d on %s-%s - options:\n"
807 " GDB: %s\n"
808 " lock debug: %s\n"
809 " lock vdebug: %s\n",
810 v->build, v->date, v->time,
811 (ready->flags & SOF_IPC_INFO_GDB) ?
812 "enabled" : "disabled",
813 (ready->flags & SOF_IPC_INFO_LOCKS) ?
814 "enabled" : "disabled",
815 (ready->flags & SOF_IPC_INFO_LOCKSV) ?
816 "enabled" : "disabled");
817 }
818
819 /* copy the fw_version into debugfs at first boot */
820 memcpy(&sdev->fw_version, v, sizeof(*v));
821
822 return 0;
823}
824
825static int ipc3_fw_ready(struct snd_sof_dev *sdev, u32 cmd)
826{
827 struct sof_ipc_fw_ready *fw_ready = &sdev->fw_ready;
828 int offset;
829 int ret;
830
831 /* mailbox must be on 4k boundary */
832 offset = snd_sof_dsp_get_mailbox_offset(sdev);
833 if (offset < 0) {
834 dev_err(sdev->dev, "%s: no mailbox offset\n", __func__);
835 return offset;
836 }
837
838 dev_dbg(sdev->dev, "DSP is ready 0x%8.8x offset 0x%x\n", cmd, offset);
839
840 /* no need to re-check version/ABI for subsequent boots */
841 if (!sdev->first_boot)
842 return 0;
843
844 /*
845 * copy data from the DSP FW ready offset
846 * Subsequent error handling is not needed for BLK_TYPE_SRAM
847 */
848 ret = snd_sof_dsp_block_read(sdev, blk_type: SOF_FW_BLK_TYPE_SRAM, offset, dest: fw_ready,
849 bytes: sizeof(*fw_ready));
850 if (ret) {
851 dev_err(sdev->dev,
852 "Unable to read fw_ready, read from TYPE_SRAM failed\n");
853 return ret;
854 }
855
856 /* make sure ABI version is compatible */
857 ret = sof_ipc3_validate_fw_version(sdev);
858 if (ret < 0)
859 return ret;
860
861 /* now check for extended data */
862 ipc3_fw_parse_ext_data(sdev, offset: offset + sizeof(struct sof_ipc_fw_ready));
863
864 ipc3_get_windows(sdev);
865
866 return ipc3_init_reply_data_buffer(sdev);
867}
868
869/* IPC stream position. */
870static void ipc3_period_elapsed(struct snd_sof_dev *sdev, u32 msg_id)
871{
872 struct snd_soc_component *scomp = sdev->component;
873 struct snd_sof_pcm_stream *stream;
874 struct sof_ipc_stream_posn posn;
875 struct snd_sof_pcm *spcm;
876 int direction, ret;
877
878 spcm = snd_sof_find_spcm_comp(scomp, comp_id: msg_id, direction: &direction);
879 if (!spcm) {
880 dev_err(sdev->dev, "period elapsed for unknown stream, msg_id %d\n",
881 msg_id);
882 return;
883 }
884
885 stream = &spcm->stream[direction];
886 ret = snd_sof_ipc_msg_data(sdev, sps: stream, p: &posn, sz: sizeof(posn));
887 if (ret < 0) {
888 dev_warn(sdev->dev, "failed to read stream position: %d\n", ret);
889 return;
890 }
891
892 trace_sof_ipc3_period_elapsed_position(sdev, posn: &posn);
893
894 memcpy(&stream->posn, &posn, sizeof(posn));
895
896 if (spcm->pcm.compress)
897 snd_sof_compr_fragment_elapsed(cstream: stream->cstream);
898 else if (stream->substream->runtime &&
899 !stream->substream->runtime->no_period_wakeup)
900 /* only inform ALSA for period_wakeup mode */
901 snd_sof_pcm_period_elapsed(substream: stream->substream);
902}
903
904/* DSP notifies host of an XRUN within FW */
905static void ipc3_xrun(struct snd_sof_dev *sdev, u32 msg_id)
906{
907 struct snd_soc_component *scomp = sdev->component;
908 struct snd_sof_pcm_stream *stream;
909 struct sof_ipc_stream_posn posn;
910 struct snd_sof_pcm *spcm;
911 int direction, ret;
912
913 spcm = snd_sof_find_spcm_comp(scomp, comp_id: msg_id, direction: &direction);
914 if (!spcm) {
915 dev_err(sdev->dev, "XRUN for unknown stream, msg_id %d\n",
916 msg_id);
917 return;
918 }
919
920 stream = &spcm->stream[direction];
921 ret = snd_sof_ipc_msg_data(sdev, sps: stream, p: &posn, sz: sizeof(posn));
922 if (ret < 0) {
923 dev_warn(sdev->dev, "failed to read overrun position: %d\n", ret);
924 return;
925 }
926
927 dev_dbg(sdev->dev, "posn XRUN: host %llx comp %d size %d\n",
928 posn.host_posn, posn.xrun_comp_id, posn.xrun_size);
929
930#if defined(CONFIG_SND_SOC_SOF_DEBUG_XRUN_STOP)
931 /* stop PCM on XRUN - used for pipeline debug */
932 memcpy(&stream->posn, &posn, sizeof(posn));
933 snd_pcm_stop_xrun(substream: stream->substream);
934#endif
935}
936
937/* stream notifications from firmware */
938static void ipc3_stream_message(struct snd_sof_dev *sdev, void *msg_buf)
939{
940 struct sof_ipc_cmd_hdr *hdr = msg_buf;
941 u32 msg_type = hdr->cmd & SOF_CMD_TYPE_MASK;
942 u32 msg_id = SOF_IPC_MESSAGE_ID(hdr->cmd);
943
944 switch (msg_type) {
945 case SOF_IPC_STREAM_POSITION:
946 ipc3_period_elapsed(sdev, msg_id);
947 break;
948 case SOF_IPC_STREAM_TRIG_XRUN:
949 ipc3_xrun(sdev, msg_id);
950 break;
951 default:
952 dev_err(sdev->dev, "unhandled stream message %#x\n",
953 msg_id);
954 break;
955 }
956}
957
958/* component notifications from firmware */
959static void ipc3_comp_notification(struct snd_sof_dev *sdev, void *msg_buf)
960{
961 const struct sof_ipc_tplg_ops *tplg_ops = sdev->ipc->ops->tplg;
962 struct sof_ipc_cmd_hdr *hdr = msg_buf;
963 u32 msg_type = hdr->cmd & SOF_CMD_TYPE_MASK;
964
965 switch (msg_type) {
966 case SOF_IPC_COMP_GET_VALUE:
967 case SOF_IPC_COMP_GET_DATA:
968 break;
969 default:
970 dev_err(sdev->dev, "unhandled component message %#x\n", msg_type);
971 return;
972 }
973
974 if (tplg_ops->control->update)
975 tplg_ops->control->update(sdev, msg_buf);
976}
977
978static void ipc3_trace_message(struct snd_sof_dev *sdev, void *msg_buf)
979{
980 struct sof_ipc_cmd_hdr *hdr = msg_buf;
981 u32 msg_type = hdr->cmd & SOF_CMD_TYPE_MASK;
982
983 switch (msg_type) {
984 case SOF_IPC_TRACE_DMA_POSITION:
985 ipc3_dtrace_posn_update(sdev, posn: msg_buf);
986 break;
987 default:
988 dev_err(sdev->dev, "unhandled trace message %#x\n", msg_type);
989 break;
990 }
991}
992
993void sof_ipc3_do_rx_work(struct snd_sof_dev *sdev, struct sof_ipc_cmd_hdr *hdr, void *msg_buf)
994{
995 ipc3_rx_callback rx_callback = NULL;
996 u32 cmd;
997 int err;
998
999 ipc3_log_header(dev: sdev->dev, text: "ipc rx", cmd: hdr->cmd);
1000
1001 if (hdr->size < sizeof(*hdr) || hdr->size > SOF_IPC_MSG_MAX_SIZE) {
1002 dev_err(sdev->dev, "The received message size is invalid: %u\n",
1003 hdr->size);
1004 return;
1005 }
1006
1007 cmd = hdr->cmd & SOF_GLB_TYPE_MASK;
1008
1009 /* check message type */
1010 switch (cmd) {
1011 case SOF_IPC_GLB_REPLY:
1012 dev_err(sdev->dev, "ipc reply unknown\n");
1013 break;
1014 case SOF_IPC_FW_READY:
1015 /* check for FW boot completion */
1016 if (sdev->fw_state == SOF_FW_BOOT_IN_PROGRESS) {
1017 err = ipc3_fw_ready(sdev, cmd);
1018 if (err < 0)
1019 sof_set_fw_state(sdev, new_state: SOF_FW_BOOT_READY_FAILED);
1020 else
1021 sof_set_fw_state(sdev, new_state: SOF_FW_BOOT_READY_OK);
1022
1023 /* wake up firmware loader */
1024 wake_up(&sdev->boot_wait);
1025 }
1026 break;
1027 case SOF_IPC_GLB_COMPOUND:
1028 case SOF_IPC_GLB_TPLG_MSG:
1029 case SOF_IPC_GLB_PM_MSG:
1030 break;
1031 case SOF_IPC_GLB_COMP_MSG:
1032 rx_callback = ipc3_comp_notification;
1033 break;
1034 case SOF_IPC_GLB_STREAM_MSG:
1035 rx_callback = ipc3_stream_message;
1036 break;
1037 case SOF_IPC_GLB_TRACE_MSG:
1038 rx_callback = ipc3_trace_message;
1039 break;
1040 default:
1041 dev_err(sdev->dev, "%s: Unknown DSP message: 0x%x\n", __func__, cmd);
1042 break;
1043 }
1044
1045 /* Call local handler for the message */
1046 if (rx_callback)
1047 rx_callback(sdev, msg_buf);
1048
1049 /* Notify registered clients */
1050 sof_client_ipc_rx_dispatcher(sdev, msg_buf);
1051
1052 ipc3_log_header(dev: sdev->dev, text: "ipc rx done", cmd: hdr->cmd);
1053}
1054EXPORT_SYMBOL(sof_ipc3_do_rx_work);
1055
1056/* DSP firmware has sent host a message */
1057static void sof_ipc3_rx_msg(struct snd_sof_dev *sdev)
1058{
1059 struct sof_ipc_cmd_hdr hdr;
1060 void *msg_buf;
1061 int err;
1062
1063 /* read back header */
1064 err = snd_sof_ipc_msg_data(sdev, NULL, p: &hdr, sz: sizeof(hdr));
1065 if (err < 0) {
1066 dev_warn(sdev->dev, "failed to read IPC header: %d\n", err);
1067 return;
1068 }
1069
1070 if (hdr.size < sizeof(hdr) || hdr.size > SOF_IPC_MSG_MAX_SIZE) {
1071 dev_err(sdev->dev, "The received message size is invalid\n");
1072 return;
1073 }
1074
1075 /* read the full message */
1076 msg_buf = kmalloc(size: hdr.size, GFP_KERNEL);
1077 if (!msg_buf)
1078 return;
1079
1080 err = snd_sof_ipc_msg_data(sdev, NULL, p: msg_buf, sz: hdr.size);
1081 if (err < 0) {
1082 dev_err(sdev->dev, "%s: Failed to read message: %d\n", __func__, err);
1083 kfree(objp: msg_buf);
1084 return;
1085 }
1086
1087 sof_ipc3_do_rx_work(sdev, &hdr, msg_buf);
1088
1089 kfree(objp: msg_buf);
1090}
1091
1092static int sof_ipc3_set_core_state(struct snd_sof_dev *sdev, int core_idx, bool on)
1093{
1094 struct sof_ipc_pm_core_config core_cfg = {
1095 .hdr.size = sizeof(core_cfg),
1096 .hdr.cmd = SOF_IPC_GLB_PM_MSG | SOF_IPC_PM_CORE_ENABLE,
1097 };
1098
1099 if (on)
1100 core_cfg.enable_mask = sdev->enabled_cores_mask | BIT(core_idx);
1101 else
1102 core_cfg.enable_mask = sdev->enabled_cores_mask & ~BIT(core_idx);
1103
1104 return sof_ipc3_tx_msg(sdev, msg_data: &core_cfg, msg_bytes: sizeof(core_cfg), NULL, reply_bytes: 0, no_pm: false);
1105}
1106
1107static int sof_ipc3_ctx_ipc(struct snd_sof_dev *sdev, int cmd)
1108{
1109 struct sof_ipc_pm_ctx pm_ctx = {
1110 .hdr.size = sizeof(pm_ctx),
1111 .hdr.cmd = SOF_IPC_GLB_PM_MSG | cmd,
1112 };
1113
1114 /* send ctx save ipc to dsp */
1115 return sof_ipc3_tx_msg(sdev, msg_data: &pm_ctx, msg_bytes: sizeof(pm_ctx), NULL, reply_bytes: 0, no_pm: false);
1116}
1117
1118static int sof_ipc3_ctx_save(struct snd_sof_dev *sdev)
1119{
1120 return sof_ipc3_ctx_ipc(sdev, SOF_IPC_PM_CTX_SAVE);
1121}
1122
1123static int sof_ipc3_ctx_restore(struct snd_sof_dev *sdev)
1124{
1125 return sof_ipc3_ctx_ipc(sdev, SOF_IPC_PM_CTX_RESTORE);
1126}
1127
1128static int sof_ipc3_set_pm_gate(struct snd_sof_dev *sdev, u32 flags)
1129{
1130 struct sof_ipc_pm_gate pm_gate;
1131
1132 memset(&pm_gate, 0, sizeof(pm_gate));
1133
1134 /* configure pm_gate ipc message */
1135 pm_gate.hdr.size = sizeof(pm_gate);
1136 pm_gate.hdr.cmd = SOF_IPC_GLB_PM_MSG | SOF_IPC_PM_GATE;
1137 pm_gate.flags = flags;
1138
1139 /* send pm_gate ipc to dsp */
1140 return sof_ipc_tx_message_no_pm_no_reply(ipc: sdev->ipc, msg_data: &pm_gate, msg_bytes: sizeof(pm_gate));
1141}
1142
1143static const struct sof_ipc_pm_ops ipc3_pm_ops = {
1144 .ctx_save = sof_ipc3_ctx_save,
1145 .ctx_restore = sof_ipc3_ctx_restore,
1146 .set_core_state = sof_ipc3_set_core_state,
1147 .set_pm_gate = sof_ipc3_set_pm_gate,
1148};
1149
1150const struct sof_ipc_ops ipc3_ops = {
1151 .tplg = &ipc3_tplg_ops,
1152 .pm = &ipc3_pm_ops,
1153 .pcm = &ipc3_pcm_ops,
1154 .fw_loader = &ipc3_loader_ops,
1155 .fw_tracing = &ipc3_dtrace_ops,
1156
1157 .tx_msg = sof_ipc3_tx_msg,
1158 .rx_msg = sof_ipc3_rx_msg,
1159 .set_get_data = sof_ipc3_set_get_data,
1160 .get_reply = sof_ipc3_get_reply,
1161};
1162

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source code of linux/sound/soc/sof/ipc3.c