1 // SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
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.
6 // Copyright(c) 2018 Intel Corporation. All rights reserved.
8 // Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
10 // Generic IPC layer that can work over MMIO and SPI/I2C. PHY layer provided
11 // by platform driver code.
14 #include <linux/mutex.h>
15 #include <linux/types.h>
20 static void ipc_trace_message(struct snd_sof_dev *sdev, u32 msg_id);
21 static void ipc_stream_message(struct snd_sof_dev *sdev, u32 msg_cmd);
24 * IPC message Tx/Rx message handling.
27 /* SOF generic IPC data */
29 struct snd_sof_dev *sdev;
31 /* protects messages and the disable flag */
32 struct mutex tx_mutex;
33 /* disables further sending of ipc's */
36 struct snd_sof_ipc_msg msg;
39 struct sof_ipc_ctrl_data_params {
49 #if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_VERBOSE_IPC)
50 static void ipc_log_header(struct device *dev, u8 *text, u32 cmd)
57 glb = cmd & SOF_GLB_TYPE_MASK;
58 type = cmd & SOF_CMD_TYPE_MASK;
61 case SOF_IPC_GLB_REPLY:
62 str = "GLB_REPLY"; break;
63 case SOF_IPC_GLB_COMPOUND:
64 str = "GLB_COMPOUND"; break;
65 case SOF_IPC_GLB_TPLG_MSG:
68 case SOF_IPC_TPLG_COMP_NEW:
69 str2 = "COMP_NEW"; break;
70 case SOF_IPC_TPLG_COMP_FREE:
71 str2 = "COMP_FREE"; break;
72 case SOF_IPC_TPLG_COMP_CONNECT:
73 str2 = "COMP_CONNECT"; break;
74 case SOF_IPC_TPLG_PIPE_NEW:
75 str2 = "PIPE_NEW"; break;
76 case SOF_IPC_TPLG_PIPE_FREE:
77 str2 = "PIPE_FREE"; break;
78 case SOF_IPC_TPLG_PIPE_CONNECT:
79 str2 = "PIPE_CONNECT"; break;
80 case SOF_IPC_TPLG_PIPE_COMPLETE:
81 str2 = "PIPE_COMPLETE"; break;
82 case SOF_IPC_TPLG_BUFFER_NEW:
83 str2 = "BUFFER_NEW"; break;
84 case SOF_IPC_TPLG_BUFFER_FREE:
85 str2 = "BUFFER_FREE"; break;
87 str2 = "unknown type"; break;
90 case SOF_IPC_GLB_PM_MSG:
93 case SOF_IPC_PM_CTX_SAVE:
94 str2 = "CTX_SAVE"; break;
95 case SOF_IPC_PM_CTX_RESTORE:
96 str2 = "CTX_RESTORE"; break;
97 case SOF_IPC_PM_CTX_SIZE:
98 str2 = "CTX_SIZE"; break;
99 case SOF_IPC_PM_CLK_SET:
100 str2 = "CLK_SET"; break;
101 case SOF_IPC_PM_CLK_GET:
102 str2 = "CLK_GET"; break;
103 case SOF_IPC_PM_CLK_REQ:
104 str2 = "CLK_REQ"; break;
105 case SOF_IPC_PM_CORE_ENABLE:
106 str2 = "CORE_ENABLE"; break;
108 str2 = "unknown type"; break;
111 case SOF_IPC_GLB_COMP_MSG:
112 str = "GLB_COMP_MSG";
114 case SOF_IPC_COMP_SET_VALUE:
115 str2 = "SET_VALUE"; break;
116 case SOF_IPC_COMP_GET_VALUE:
117 str2 = "GET_VALUE"; break;
118 case SOF_IPC_COMP_SET_DATA:
119 str2 = "SET_DATA"; break;
120 case SOF_IPC_COMP_GET_DATA:
121 str2 = "GET_DATA"; break;
123 str2 = "unknown type"; break;
126 case SOF_IPC_GLB_STREAM_MSG:
127 str = "GLB_STREAM_MSG";
129 case SOF_IPC_STREAM_PCM_PARAMS:
130 str2 = "PCM_PARAMS"; break;
131 case SOF_IPC_STREAM_PCM_PARAMS_REPLY:
132 str2 = "PCM_REPLY"; break;
133 case SOF_IPC_STREAM_PCM_FREE:
134 str2 = "PCM_FREE"; break;
135 case SOF_IPC_STREAM_TRIG_START:
136 str2 = "TRIG_START"; break;
137 case SOF_IPC_STREAM_TRIG_STOP:
138 str2 = "TRIG_STOP"; break;
139 case SOF_IPC_STREAM_TRIG_PAUSE:
140 str2 = "TRIG_PAUSE"; break;
141 case SOF_IPC_STREAM_TRIG_RELEASE:
142 str2 = "TRIG_RELEASE"; break;
143 case SOF_IPC_STREAM_TRIG_DRAIN:
144 str2 = "TRIG_DRAIN"; break;
145 case SOF_IPC_STREAM_TRIG_XRUN:
146 str2 = "TRIG_XRUN"; break;
147 case SOF_IPC_STREAM_POSITION:
148 str2 = "POSITION"; break;
149 case SOF_IPC_STREAM_VORBIS_PARAMS:
150 str2 = "VORBIS_PARAMS"; break;
151 case SOF_IPC_STREAM_VORBIS_FREE:
152 str2 = "VORBIS_FREE"; break;
154 str2 = "unknown type"; break;
157 case SOF_IPC_FW_READY:
158 str = "FW_READY"; break;
159 case SOF_IPC_GLB_DAI_MSG:
162 case SOF_IPC_DAI_CONFIG:
163 str2 = "CONFIG"; break;
164 case SOF_IPC_DAI_LOOPBACK:
165 str2 = "LOOPBACK"; break;
167 str2 = "unknown type"; break;
170 case SOF_IPC_GLB_TRACE_MSG:
171 str = "GLB_TRACE_MSG"; break;
172 case SOF_IPC_GLB_TEST_MSG:
173 str = "GLB_TEST_MSG";
175 case SOF_IPC_TEST_IPC_FLOOD:
176 str2 = "IPC_FLOOD"; break;
178 str2 = "unknown type"; break;
182 str = "unknown GLB command"; break;
186 dev_dbg(dev, "%s: 0x%x: %s: %s\n", text, cmd, str, str2);
188 dev_dbg(dev, "%s: 0x%x: %s\n", text, cmd, str);
191 static inline void ipc_log_header(struct device *dev, u8 *text, u32 cmd)
193 if ((cmd & SOF_GLB_TYPE_MASK) != SOF_IPC_GLB_TRACE_MSG)
194 dev_dbg(dev, "%s: 0x%x\n", text, cmd);
198 /* wait for IPC message reply */
199 static int tx_wait_done(struct snd_sof_ipc *ipc, struct snd_sof_ipc_msg *msg,
202 struct snd_sof_dev *sdev = ipc->sdev;
203 struct sof_ipc_cmd_hdr *hdr = msg->msg_data;
206 /* wait for DSP IPC completion */
207 ret = wait_event_timeout(msg->waitq, msg->ipc_complete,
208 msecs_to_jiffies(sdev->ipc_timeout));
211 dev_err(sdev->dev, "error: ipc timed out for 0x%x size %d\n",
212 hdr->cmd, hdr->size);
213 snd_sof_handle_fw_exception(ipc->sdev);
216 /* copy the data returned from DSP */
217 ret = msg->reply_error;
219 memcpy(reply_data, msg->reply_data, msg->reply_size);
221 dev_err(sdev->dev, "error: ipc error for 0x%x size %zu\n",
222 hdr->cmd, msg->reply_size);
224 ipc_log_header(sdev->dev, "ipc tx succeeded", hdr->cmd);
230 /* send IPC message from host to DSP */
231 static int sof_ipc_tx_message_unlocked(struct snd_sof_ipc *ipc, u32 header,
232 void *msg_data, size_t msg_bytes,
233 void *reply_data, size_t reply_bytes)
235 struct snd_sof_dev *sdev = ipc->sdev;
236 struct snd_sof_ipc_msg *msg;
239 if (ipc->disable_ipc_tx)
243 * The spin-lock is also still needed to protect message objects against
244 * other atomic contexts.
246 spin_lock_irq(&sdev->ipc_lock);
248 /* initialise the message */
251 msg->header = header;
252 msg->msg_size = msg_bytes;
253 msg->reply_size = reply_bytes;
254 msg->reply_error = 0;
256 /* attach any data */
258 memcpy(msg->msg_data, msg_data, msg_bytes);
262 ret = snd_sof_dsp_send_msg(sdev, msg);
263 /* Next reply that we receive will be related to this message */
265 msg->ipc_complete = false;
267 spin_unlock_irq(&sdev->ipc_lock);
270 /* So far IPC TX never fails, consider making the above void */
271 dev_err_ratelimited(sdev->dev,
272 "error: ipc tx failed with error %d\n",
277 ipc_log_header(sdev->dev, "ipc tx", msg->header);
279 /* now wait for completion */
281 ret = tx_wait_done(ipc, msg, reply_data);
286 /* send IPC message from host to DSP */
287 int sof_ipc_tx_message(struct snd_sof_ipc *ipc, u32 header,
288 void *msg_data, size_t msg_bytes, void *reply_data,
293 if (msg_bytes > SOF_IPC_MSG_MAX_SIZE ||
294 reply_bytes > SOF_IPC_MSG_MAX_SIZE)
297 /* Serialise IPC TX */
298 mutex_lock(&ipc->tx_mutex);
300 ret = sof_ipc_tx_message_unlocked(ipc, header, msg_data, msg_bytes,
301 reply_data, reply_bytes);
303 mutex_unlock(&ipc->tx_mutex);
307 EXPORT_SYMBOL(sof_ipc_tx_message);
309 /* handle reply message from DSP */
310 int snd_sof_ipc_reply(struct snd_sof_dev *sdev, u32 msg_id)
312 struct snd_sof_ipc_msg *msg = &sdev->ipc->msg;
314 if (msg->ipc_complete) {
315 dev_err(sdev->dev, "error: no reply expected, received 0x%x",
320 /* wake up and return the error if we have waiters on this message ? */
321 msg->ipc_complete = true;
322 wake_up(&msg->waitq);
326 EXPORT_SYMBOL(snd_sof_ipc_reply);
328 /* DSP firmware has sent host a message */
329 void snd_sof_ipc_msgs_rx(struct snd_sof_dev *sdev)
331 struct sof_ipc_cmd_hdr hdr;
335 /* read back header */
336 snd_sof_ipc_msg_data(sdev, NULL, &hdr, sizeof(hdr));
337 ipc_log_header(sdev->dev, "ipc rx", hdr.cmd);
339 cmd = hdr.cmd & SOF_GLB_TYPE_MASK;
340 type = hdr.cmd & SOF_CMD_TYPE_MASK;
342 /* check message type */
344 case SOF_IPC_GLB_REPLY:
345 dev_err(sdev->dev, "error: ipc reply unknown\n");
347 case SOF_IPC_FW_READY:
348 /* check for FW boot completion */
349 if (!sdev->boot_complete) {
350 err = sof_ops(sdev)->fw_ready(sdev, cmd);
353 * this indicates a mismatch in ABI
354 * between the driver and fw
356 dev_err(sdev->dev, "error: ABI mismatch %d\n",
359 /* firmware boot completed OK */
360 sdev->boot_complete = true;
363 /* wake up firmware loader */
364 wake_up(&sdev->boot_wait);
367 case SOF_IPC_GLB_COMPOUND:
368 case SOF_IPC_GLB_TPLG_MSG:
369 case SOF_IPC_GLB_PM_MSG:
370 case SOF_IPC_GLB_COMP_MSG:
372 case SOF_IPC_GLB_STREAM_MSG:
373 /* need to pass msg id into the function */
374 ipc_stream_message(sdev, hdr.cmd);
376 case SOF_IPC_GLB_TRACE_MSG:
377 ipc_trace_message(sdev, type);
380 dev_err(sdev->dev, "error: unknown DSP message 0x%x\n", cmd);
384 ipc_log_header(sdev->dev, "ipc rx done", hdr.cmd);
386 EXPORT_SYMBOL(snd_sof_ipc_msgs_rx);
389 * IPC trace mechanism.
392 static void ipc_trace_message(struct snd_sof_dev *sdev, u32 msg_id)
394 struct sof_ipc_dma_trace_posn posn;
397 case SOF_IPC_TRACE_DMA_POSITION:
398 /* read back full message */
399 snd_sof_ipc_msg_data(sdev, NULL, &posn, sizeof(posn));
400 snd_sof_trace_update_pos(sdev, &posn);
403 dev_err(sdev->dev, "error: unhandled trace message %x\n",
410 * IPC stream position.
413 static void ipc_period_elapsed(struct snd_sof_dev *sdev, u32 msg_id)
415 struct snd_sof_pcm_stream *stream;
416 struct sof_ipc_stream_posn posn;
417 struct snd_sof_pcm *spcm;
420 spcm = snd_sof_find_spcm_comp(sdev, msg_id, &direction);
423 "error: period elapsed for unknown stream, msg_id %d\n",
428 stream = &spcm->stream[direction];
429 snd_sof_ipc_msg_data(sdev, stream->substream, &posn, sizeof(posn));
431 dev_dbg(sdev->dev, "posn : host 0x%llx dai 0x%llx wall 0x%llx\n",
432 posn.host_posn, posn.dai_posn, posn.wallclock);
434 memcpy(&stream->posn, &posn, sizeof(posn));
436 /* only inform ALSA for period_wakeup mode */
437 if (!stream->substream->runtime->no_period_wakeup)
438 snd_sof_pcm_period_elapsed(stream->substream);
441 /* DSP notifies host of an XRUN within FW */
442 static void ipc_xrun(struct snd_sof_dev *sdev, u32 msg_id)
444 struct snd_sof_pcm_stream *stream;
445 struct sof_ipc_stream_posn posn;
446 struct snd_sof_pcm *spcm;
449 spcm = snd_sof_find_spcm_comp(sdev, msg_id, &direction);
451 dev_err(sdev->dev, "error: XRUN for unknown stream, msg_id %d\n",
456 stream = &spcm->stream[direction];
457 snd_sof_ipc_msg_data(sdev, stream->substream, &posn, sizeof(posn));
459 dev_dbg(sdev->dev, "posn XRUN: host %llx comp %d size %d\n",
460 posn.host_posn, posn.xrun_comp_id, posn.xrun_size);
462 #if defined(CONFIG_SND_SOC_SOF_DEBUG_XRUN_STOP)
463 /* stop PCM on XRUN - used for pipeline debug */
464 memcpy(&stream->posn, &posn, sizeof(posn));
465 snd_pcm_stop_xrun(stream->substream);
469 /* stream notifications from DSP FW */
470 static void ipc_stream_message(struct snd_sof_dev *sdev, u32 msg_cmd)
472 /* get msg cmd type and msd id */
473 u32 msg_type = msg_cmd & SOF_CMD_TYPE_MASK;
474 u32 msg_id = SOF_IPC_MESSAGE_ID(msg_cmd);
477 case SOF_IPC_STREAM_POSITION:
478 ipc_period_elapsed(sdev, msg_id);
480 case SOF_IPC_STREAM_TRIG_XRUN:
481 ipc_xrun(sdev, msg_id);
484 dev_err(sdev->dev, "error: unhandled stream message %x\n",
490 /* get stream position IPC - use faster MMIO method if available on platform */
491 int snd_sof_ipc_stream_posn(struct snd_sof_dev *sdev,
492 struct snd_sof_pcm *spcm, int direction,
493 struct sof_ipc_stream_posn *posn)
495 struct sof_ipc_stream stream;
498 /* read position via slower IPC */
499 stream.hdr.size = sizeof(stream);
500 stream.hdr.cmd = SOF_IPC_GLB_STREAM_MSG | SOF_IPC_STREAM_POSITION;
501 stream.comp_id = spcm->stream[direction].comp_id;
503 /* send IPC to the DSP */
504 err = sof_ipc_tx_message(sdev->ipc,
505 stream.hdr.cmd, &stream, sizeof(stream), &posn,
508 dev_err(sdev->dev, "error: failed to get stream %d position\n",
515 EXPORT_SYMBOL(snd_sof_ipc_stream_posn);
517 static int sof_get_ctrl_copy_params(enum sof_ipc_ctrl_type ctrl_type,
518 struct sof_ipc_ctrl_data *src,
519 struct sof_ipc_ctrl_data *dst,
520 struct sof_ipc_ctrl_data_params *sparams)
523 case SOF_CTRL_TYPE_VALUE_CHAN_GET:
524 case SOF_CTRL_TYPE_VALUE_CHAN_SET:
525 sparams->src = (u8 *)src->chanv;
526 sparams->dst = (u8 *)dst->chanv;
528 case SOF_CTRL_TYPE_VALUE_COMP_GET:
529 case SOF_CTRL_TYPE_VALUE_COMP_SET:
530 sparams->src = (u8 *)src->compv;
531 sparams->dst = (u8 *)dst->compv;
533 case SOF_CTRL_TYPE_DATA_GET:
534 case SOF_CTRL_TYPE_DATA_SET:
535 sparams->src = (u8 *)src->data->data;
536 sparams->dst = (u8 *)dst->data->data;
542 /* calculate payload size and number of messages */
543 sparams->pl_size = SOF_IPC_MSG_MAX_SIZE - sparams->hdr_bytes;
544 sparams->num_msg = DIV_ROUND_UP(sparams->msg_bytes, sparams->pl_size);
549 static int sof_set_get_large_ctrl_data(struct snd_sof_dev *sdev,
550 struct sof_ipc_ctrl_data *cdata,
551 struct sof_ipc_ctrl_data_params *sparams,
554 struct sof_ipc_ctrl_data *partdata;
562 /* allocate max ipc size because we have at least one */
563 partdata = kzalloc(SOF_IPC_MSG_MAX_SIZE, GFP_KERNEL);
568 err = sof_get_ctrl_copy_params(cdata->type, cdata, partdata,
571 err = sof_get_ctrl_copy_params(cdata->type, partdata, cdata,
578 msg_bytes = sparams->msg_bytes;
579 pl_size = sparams->pl_size;
581 /* copy the header data */
582 memcpy(partdata, cdata, sparams->hdr_bytes);
584 /* Serialise IPC TX */
585 mutex_lock(&sdev->ipc->tx_mutex);
587 /* copy the payload data in a loop */
588 for (i = 0; i < sparams->num_msg; i++) {
589 send_bytes = min(msg_bytes, pl_size);
590 partdata->num_elems = send_bytes;
591 partdata->rhdr.hdr.size = sparams->hdr_bytes + send_bytes;
592 partdata->msg_index = i;
593 msg_bytes -= send_bytes;
594 partdata->elems_remaining = msg_bytes;
597 memcpy(sparams->dst, sparams->src + offset, send_bytes);
599 err = sof_ipc_tx_message_unlocked(sdev->ipc,
600 partdata->rhdr.hdr.cmd,
602 partdata->rhdr.hdr.size,
604 partdata->rhdr.hdr.size);
609 memcpy(sparams->dst + offset, sparams->src, send_bytes);
614 mutex_unlock(&sdev->ipc->tx_mutex);
621 * IPC get()/set() for kcontrols.
623 int snd_sof_ipc_set_get_comp_data(struct snd_sof_ipc *ipc,
624 struct snd_sof_control *scontrol,
626 enum sof_ipc_ctrl_type ctrl_type,
627 enum sof_ipc_ctrl_cmd ctrl_cmd,
630 struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
631 struct snd_sof_dev *sdev = ipc->sdev;
632 struct sof_ipc_fw_ready *ready = &sdev->fw_ready;
633 struct sof_ipc_fw_version *v = &ready->version;
634 struct sof_ipc_ctrl_data_params sparams;
638 /* read or write firmware volume */
639 if (scontrol->readback_offset != 0) {
640 /* write/read value header via mmaped region */
641 send_bytes = sizeof(struct sof_ipc_ctrl_value_chan) *
644 snd_sof_dsp_block_write(sdev, sdev->mmio_bar,
645 scontrol->readback_offset,
646 cdata->chanv, send_bytes);
649 snd_sof_dsp_block_read(sdev, sdev->mmio_bar,
650 scontrol->readback_offset,
651 cdata->chanv, send_bytes);
655 cdata->rhdr.hdr.cmd = SOF_IPC_GLB_COMP_MSG | ipc_cmd;
656 cdata->cmd = ctrl_cmd;
657 cdata->type = ctrl_type;
658 cdata->comp_id = scontrol->comp_id;
659 cdata->msg_index = 0;
661 /* calculate header and data size */
662 switch (cdata->type) {
663 case SOF_CTRL_TYPE_VALUE_CHAN_GET:
664 case SOF_CTRL_TYPE_VALUE_CHAN_SET:
665 sparams.msg_bytes = scontrol->num_channels *
666 sizeof(struct sof_ipc_ctrl_value_chan);
667 sparams.hdr_bytes = sizeof(struct sof_ipc_ctrl_data);
668 sparams.elems = scontrol->num_channels;
670 case SOF_CTRL_TYPE_VALUE_COMP_GET:
671 case SOF_CTRL_TYPE_VALUE_COMP_SET:
672 sparams.msg_bytes = scontrol->num_channels *
673 sizeof(struct sof_ipc_ctrl_value_comp);
674 sparams.hdr_bytes = sizeof(struct sof_ipc_ctrl_data);
675 sparams.elems = scontrol->num_channels;
677 case SOF_CTRL_TYPE_DATA_GET:
678 case SOF_CTRL_TYPE_DATA_SET:
679 sparams.msg_bytes = cdata->data->size;
680 sparams.hdr_bytes = sizeof(struct sof_ipc_ctrl_data) +
681 sizeof(struct sof_abi_hdr);
682 sparams.elems = cdata->data->size;
688 cdata->rhdr.hdr.size = sparams.msg_bytes + sparams.hdr_bytes;
689 cdata->num_elems = sparams.elems;
690 cdata->elems_remaining = 0;
692 /* send normal size ipc in one part */
693 if (cdata->rhdr.hdr.size <= SOF_IPC_MSG_MAX_SIZE) {
694 err = sof_ipc_tx_message(sdev->ipc, cdata->rhdr.hdr.cmd, cdata,
695 cdata->rhdr.hdr.size, cdata,
696 cdata->rhdr.hdr.size);
699 dev_err(sdev->dev, "error: set/get ctrl ipc comp %d\n",
705 /* data is bigger than max ipc size, chop into smaller pieces */
706 dev_dbg(sdev->dev, "large ipc size %u, control size %u\n",
707 cdata->rhdr.hdr.size, scontrol->size);
709 /* large messages is only supported from ABI 3.3.0 onwards */
710 if (v->abi_version < SOF_ABI_VER(3, 3, 0)) {
711 dev_err(sdev->dev, "error: incompatible FW ABI version\n");
715 err = sof_set_get_large_ctrl_data(sdev, cdata, &sparams, send);
718 dev_err(sdev->dev, "error: set/get large ctrl ipc comp %d\n",
723 EXPORT_SYMBOL(snd_sof_ipc_set_get_comp_data);
726 * IPC layer enumeration.
729 int snd_sof_dsp_mailbox_init(struct snd_sof_dev *sdev, u32 dspbox,
730 size_t dspbox_size, u32 hostbox,
733 sdev->dsp_box.offset = dspbox;
734 sdev->dsp_box.size = dspbox_size;
735 sdev->host_box.offset = hostbox;
736 sdev->host_box.size = hostbox_size;
739 EXPORT_SYMBOL(snd_sof_dsp_mailbox_init);
741 int snd_sof_ipc_valid(struct snd_sof_dev *sdev)
743 struct sof_ipc_fw_ready *ready = &sdev->fw_ready;
744 struct sof_ipc_fw_version *v = &ready->version;
747 "Firmware info: version %d:%d:%d-%s\n", v->major, v->minor,
750 "Firmware: ABI %d:%d:%d Kernel ABI %d:%d:%d\n",
751 SOF_ABI_VERSION_MAJOR(v->abi_version),
752 SOF_ABI_VERSION_MINOR(v->abi_version),
753 SOF_ABI_VERSION_PATCH(v->abi_version),
754 SOF_ABI_MAJOR, SOF_ABI_MINOR, SOF_ABI_PATCH);
756 if (SOF_ABI_VERSION_INCOMPATIBLE(SOF_ABI_VERSION, v->abi_version)) {
757 dev_err(sdev->dev, "error: incompatible FW ABI version\n");
761 if (v->abi_version > SOF_ABI_VERSION) {
762 if (!IS_ENABLED(CONFIG_SND_SOC_SOF_STRICT_ABI_CHECKS)) {
763 dev_warn(sdev->dev, "warn: FW ABI is more recent than kernel\n");
765 dev_err(sdev->dev, "error: FW ABI is more recent than kernel\n");
770 if (ready->flags & SOF_IPC_INFO_BUILD) {
772 "Firmware debug build %d on %s-%s - options:\n"
775 " lock vdebug: %s\n",
776 v->build, v->date, v->time,
777 (ready->flags & SOF_IPC_INFO_GDB) ?
778 "enabled" : "disabled",
779 (ready->flags & SOF_IPC_INFO_LOCKS) ?
780 "enabled" : "disabled",
781 (ready->flags & SOF_IPC_INFO_LOCKSV) ?
782 "enabled" : "disabled");
785 /* copy the fw_version into debugfs at first boot */
786 memcpy(&sdev->fw_version, v, sizeof(*v));
790 EXPORT_SYMBOL(snd_sof_ipc_valid);
792 struct snd_sof_ipc *snd_sof_ipc_init(struct snd_sof_dev *sdev)
794 struct snd_sof_ipc *ipc;
795 struct snd_sof_ipc_msg *msg;
797 ipc = devm_kzalloc(sdev->dev, sizeof(*ipc), GFP_KERNEL);
801 mutex_init(&ipc->tx_mutex);
805 /* indicate that we aren't sending a message ATM */
806 msg->ipc_complete = true;
808 /* pre-allocate message data */
809 msg->msg_data = devm_kzalloc(sdev->dev, SOF_IPC_MSG_MAX_SIZE,
814 msg->reply_data = devm_kzalloc(sdev->dev, SOF_IPC_MSG_MAX_SIZE,
816 if (!msg->reply_data)
819 init_waitqueue_head(&msg->waitq);
823 EXPORT_SYMBOL(snd_sof_ipc_init);
825 void snd_sof_ipc_free(struct snd_sof_dev *sdev)
827 struct snd_sof_ipc *ipc = sdev->ipc;
829 /* disable sending of ipc's */
830 mutex_lock(&ipc->tx_mutex);
831 ipc->disable_ipc_tx = true;
832 mutex_unlock(&ipc->tx_mutex);
834 EXPORT_SYMBOL(snd_sof_ipc_free);