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) 2018 Intel Corporation
7//
8// Authors: Liam Girdwood <liam.r.girdwood@linux.intel.com>
9// Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
10// Rander Wang <rander.wang@intel.com>
11// Keyon Jie <yang.jie@linux.intel.com>
12//
13
14/*
15 * Hardware interface for generic Intel audio DSP HDA IP
16 */
17
18#include <sound/hda_register.h>
19#include <sound/sof/ipc4/header.h>
20#include <trace/events/sof_intel.h>
21#include "../ops.h"
22#include "hda.h"
23#include "telemetry.h"
24
25EXPORT_TRACEPOINT_SYMBOL(sof_intel_ipc_firmware_initiated);
26EXPORT_TRACEPOINT_SYMBOL(sof_intel_ipc_firmware_response);
27EXPORT_TRACEPOINT_SYMBOL(sof_intel_hda_irq_ipc_check);
28
29static void hda_dsp_ipc_host_done(struct snd_sof_dev *sdev)
30{
31 /*
32 * tell DSP cmd is done - clear busy
33 * interrupt and send reply msg to dsp
34 */
35 snd_sof_dsp_update_bits_forced(sdev, HDA_DSP_BAR,
36 HDA_DSP_REG_HIPCT,
37 HDA_DSP_REG_HIPCT_BUSY,
38 HDA_DSP_REG_HIPCT_BUSY);
39
40 /* unmask BUSY interrupt */
41 snd_sof_dsp_update_bits(sdev, HDA_DSP_BAR,
42 HDA_DSP_REG_HIPCCTL,
43 HDA_DSP_REG_HIPCCTL_BUSY,
44 HDA_DSP_REG_HIPCCTL_BUSY);
45}
46
47static void hda_dsp_ipc_dsp_done(struct snd_sof_dev *sdev)
48{
49 /*
50 * set DONE bit - tell DSP we have received the reply msg
51 * from DSP, and processed it, don't send more reply to host
52 */
53 snd_sof_dsp_update_bits_forced(sdev, HDA_DSP_BAR,
54 HDA_DSP_REG_HIPCIE,
55 HDA_DSP_REG_HIPCIE_DONE,
56 HDA_DSP_REG_HIPCIE_DONE);
57
58 /* unmask Done interrupt */
59 snd_sof_dsp_update_bits(sdev, HDA_DSP_BAR,
60 HDA_DSP_REG_HIPCCTL,
61 HDA_DSP_REG_HIPCCTL_DONE,
62 HDA_DSP_REG_HIPCCTL_DONE);
63}
64
65int hda_dsp_ipc_send_msg(struct snd_sof_dev *sdev, struct snd_sof_ipc_msg *msg)
66{
67 /* send IPC message to DSP */
68 sof_mailbox_write(sdev, offset: sdev->host_box.offset, message: msg->msg_data,
69 bytes: msg->msg_size);
70 snd_sof_dsp_write(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCI,
71 HDA_DSP_REG_HIPCI_BUSY);
72
73 return 0;
74}
75EXPORT_SYMBOL_NS(hda_dsp_ipc_send_msg, "SND_SOC_SOF_INTEL_HDA_COMMON");
76
77static inline bool hda_dsp_ipc4_pm_msg(u32 primary)
78{
79 /* pm setting is only supported by module msg */
80 if (SOF_IPC4_MSG_IS_MODULE_MSG(primary) != SOF_IPC4_MODULE_MSG)
81 return false;
82
83 if (SOF_IPC4_MSG_TYPE_GET(primary) == SOF_IPC4_MOD_SET_DX ||
84 SOF_IPC4_MSG_TYPE_GET(primary) == SOF_IPC4_MOD_SET_D0IX)
85 return true;
86
87 return false;
88}
89
90void hda_dsp_ipc4_schedule_d0i3_work(struct sof_intel_hda_dev *hdev,
91 struct snd_sof_ipc_msg *msg)
92{
93 struct sof_ipc4_msg *msg_data = msg->msg_data;
94
95 /* Schedule a delayed work for d0i3 entry after sending non-pm ipc msg */
96 if (hda_dsp_ipc4_pm_msg(primary: msg_data->primary))
97 return;
98
99 mod_delayed_work(wq: system_dfl_wq, dwork: &hdev->d0i3_work,
100 delay: msecs_to_jiffies(SOF_HDA_D0I3_WORK_DELAY_MS));
101}
102EXPORT_SYMBOL_NS(hda_dsp_ipc4_schedule_d0i3_work, "SND_SOC_SOF_INTEL_HDA_COMMON");
103
104int hda_dsp_ipc4_send_msg(struct snd_sof_dev *sdev, struct snd_sof_ipc_msg *msg)
105{
106 struct sof_intel_hda_dev *hdev = sdev->pdata->hw_pdata;
107 struct sof_ipc4_msg *msg_data = msg->msg_data;
108
109 if (hda_ipc4_tx_is_busy(sdev)) {
110 hdev->delayed_ipc_tx_msg = msg;
111 return 0;
112 }
113
114 hdev->delayed_ipc_tx_msg = NULL;
115
116 /* send the message via mailbox */
117 if (msg_data->data_size)
118 sof_mailbox_write(sdev, offset: sdev->host_box.offset, message: msg_data->data_ptr,
119 bytes: msg_data->data_size);
120
121 snd_sof_dsp_write(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCIE, value: msg_data->extension);
122 snd_sof_dsp_write(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCI,
123 value: msg_data->primary | HDA_DSP_REG_HIPCI_BUSY);
124
125 hda_dsp_ipc4_schedule_d0i3_work(hdev, msg);
126
127 return 0;
128}
129EXPORT_SYMBOL_NS(hda_dsp_ipc4_send_msg, "SND_SOC_SOF_INTEL_HDA_COMMON");
130
131void hda_dsp_ipc_get_reply(struct snd_sof_dev *sdev)
132{
133 struct snd_sof_ipc_msg *msg = sdev->msg;
134 struct sof_ipc_reply reply;
135 struct sof_ipc_cmd_hdr *hdr;
136
137 /*
138 * Sometimes, there is unexpected reply ipc arriving. The reply
139 * ipc belongs to none of the ipcs sent from driver.
140 * In this case, the driver must ignore the ipc.
141 */
142 if (!msg) {
143 dev_warn(sdev->dev, "unexpected ipc interrupt raised!\n");
144 return;
145 }
146
147 hdr = msg->msg_data;
148 if (hdr->cmd == (SOF_IPC_GLB_PM_MSG | SOF_IPC_PM_CTX_SAVE) ||
149 hdr->cmd == (SOF_IPC_GLB_PM_MSG | SOF_IPC_PM_GATE)) {
150 /*
151 * memory windows are powered off before sending IPC reply,
152 * so we can't read the mailbox for CTX_SAVE and PM_GATE
153 * replies.
154 */
155 reply.error = 0;
156 reply.hdr.cmd = SOF_IPC_GLB_REPLY;
157 reply.hdr.size = sizeof(reply);
158 memcpy(msg->reply_data, &reply, sizeof(reply));
159
160 msg->reply_error = 0;
161 } else {
162 snd_sof_ipc_get_reply(sdev);
163 }
164}
165EXPORT_SYMBOL_NS(hda_dsp_ipc_get_reply, "SND_SOC_SOF_INTEL_HDA_COMMON");
166
167irqreturn_t hda_dsp_ipc4_irq_thread(int irq, void *context)
168{
169 struct sof_ipc4_msg notification_data = {{ 0 }};
170 struct snd_sof_dev *sdev = context;
171 bool ack_received = false;
172 bool ipc_irq = false;
173 u32 hipcie, hipct;
174
175 hipcie = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCIE);
176 hipct = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCT);
177
178 if (hipcie & HDA_DSP_REG_HIPCIE_DONE) {
179 /* DSP received the message */
180 snd_sof_dsp_update_bits(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCCTL,
181 HDA_DSP_REG_HIPCCTL_DONE, value: 0);
182 hda_dsp_ipc_dsp_done(sdev);
183
184 ipc_irq = true;
185 ack_received = true;
186 }
187
188 if (hipct & HDA_DSP_REG_HIPCT_BUSY) {
189 /* Message from DSP (reply or notification) */
190 u32 hipcte = snd_sof_dsp_read(sdev, HDA_DSP_BAR,
191 HDA_DSP_REG_HIPCTE);
192 u32 primary = hipct & HDA_DSP_REG_HIPCT_MSG_MASK;
193 u32 extension = hipcte & HDA_DSP_REG_HIPCTE_MSG_MASK;
194
195 /* mask BUSY interrupt */
196 snd_sof_dsp_update_bits(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCCTL,
197 HDA_DSP_REG_HIPCCTL_BUSY, value: 0);
198
199 if (primary & SOF_IPC4_MSG_DIR_MASK) {
200 /* Reply received */
201 if (likely(sdev->fw_state == SOF_FW_BOOT_COMPLETE)) {
202 struct sof_ipc4_msg *data = sdev->ipc->msg.reply_data;
203
204 data->primary = primary;
205 data->extension = extension;
206
207 spin_lock_irq(lock: &sdev->ipc_lock);
208
209 snd_sof_ipc_get_reply(sdev);
210 hda_dsp_ipc_host_done(sdev);
211 snd_sof_ipc_reply(sdev, msg_id: data->primary);
212
213 spin_unlock_irq(lock: &sdev->ipc_lock);
214 } else {
215 dev_dbg_ratelimited(sdev->dev,
216 "IPC reply before FW_READY: %#x|%#x\n",
217 primary, extension);
218 }
219 } else {
220 /* Notification received */
221
222 notification_data.primary = primary;
223 notification_data.extension = extension;
224 sdev->ipc->msg.rx_data = &notification_data;
225 snd_sof_ipc_msgs_rx(sdev);
226 sdev->ipc->msg.rx_data = NULL;
227
228 /* Let DSP know that we have finished processing the message */
229 hda_dsp_ipc_host_done(sdev);
230 }
231
232 ipc_irq = true;
233 }
234
235 if (!ipc_irq)
236 /* This interrupt is not shared so no need to return IRQ_NONE. */
237 dev_dbg_ratelimited(sdev->dev, "nothing to do in IPC IRQ thread\n");
238
239 if (ack_received) {
240 struct sof_intel_hda_dev *hdev = sdev->pdata->hw_pdata;
241
242 if (hdev->delayed_ipc_tx_msg)
243 hda_dsp_ipc4_send_msg(sdev, hdev->delayed_ipc_tx_msg);
244 }
245
246 return IRQ_HANDLED;
247}
248EXPORT_SYMBOL_NS(hda_dsp_ipc4_irq_thread, "SND_SOC_SOF_INTEL_HDA_COMMON");
249
250/* IPC handler thread */
251irqreturn_t hda_dsp_ipc_irq_thread(int irq, void *context)
252{
253 struct snd_sof_dev *sdev = context;
254 u32 hipci;
255 u32 hipcie;
256 u32 hipct;
257 u32 hipcte;
258 u32 msg;
259 u32 msg_ext;
260 bool ipc_irq = false;
261
262 /* read IPC status */
263 hipcie = snd_sof_dsp_read(sdev, HDA_DSP_BAR,
264 HDA_DSP_REG_HIPCIE);
265 hipct = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCT);
266 hipci = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCI);
267 hipcte = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCTE);
268
269 /* is this a reply message from the DSP */
270 if (hipcie & HDA_DSP_REG_HIPCIE_DONE) {
271 msg = hipci & HDA_DSP_REG_HIPCI_MSG_MASK;
272 msg_ext = hipcie & HDA_DSP_REG_HIPCIE_MSG_MASK;
273
274 trace_sof_intel_ipc_firmware_response(sdev, msg, msg_ext);
275
276 /* mask Done interrupt */
277 snd_sof_dsp_update_bits(sdev, HDA_DSP_BAR,
278 HDA_DSP_REG_HIPCCTL,
279 HDA_DSP_REG_HIPCCTL_DONE, value: 0);
280
281 /*
282 * Make sure the interrupt thread cannot be preempted between
283 * waking up the sender and re-enabling the interrupt. Also
284 * protect against a theoretical race with sof_ipc_tx_message():
285 * if the DSP is fast enough to receive an IPC message, reply to
286 * it, and the host interrupt processing calls this function on
287 * a different core from the one, where the sending is taking
288 * place, the message might not yet be marked as expecting a
289 * reply.
290 */
291 if (likely(sdev->fw_state == SOF_FW_BOOT_COMPLETE)) {
292 spin_lock_irq(lock: &sdev->ipc_lock);
293
294 /* handle immediate reply from DSP core */
295 hda_dsp_ipc_get_reply(sdev);
296 snd_sof_ipc_reply(sdev, msg_id: msg);
297
298 /* set the done bit */
299 hda_dsp_ipc_dsp_done(sdev);
300
301 spin_unlock_irq(lock: &sdev->ipc_lock);
302 } else {
303 dev_dbg_ratelimited(sdev->dev, "IPC reply before FW_READY: %#x\n",
304 msg);
305 }
306
307 ipc_irq = true;
308 }
309
310 /* is this a new message from DSP */
311 if (hipct & HDA_DSP_REG_HIPCT_BUSY) {
312 msg = hipct & HDA_DSP_REG_HIPCT_MSG_MASK;
313 msg_ext = hipcte & HDA_DSP_REG_HIPCTE_MSG_MASK;
314
315 trace_sof_intel_ipc_firmware_initiated(sdev, msg, msg_ext);
316
317 /* mask BUSY interrupt */
318 snd_sof_dsp_update_bits(sdev, HDA_DSP_BAR,
319 HDA_DSP_REG_HIPCCTL,
320 HDA_DSP_REG_HIPCCTL_BUSY, value: 0);
321
322 /* handle messages from DSP */
323 if ((hipct & SOF_IPC_PANIC_MAGIC_MASK) == SOF_IPC_PANIC_MAGIC) {
324 struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
325 bool non_recoverable = true;
326
327 /*
328 * This is a PANIC message!
329 *
330 * If it is arriving during firmware boot and it is not
331 * the last boot attempt then change the non_recoverable
332 * to false as the DSP might be able to boot in the next
333 * iteration(s)
334 */
335 if (sdev->fw_state == SOF_FW_BOOT_IN_PROGRESS &&
336 hda->boot_iteration < HDA_FW_BOOT_ATTEMPTS)
337 non_recoverable = false;
338
339 snd_sof_dsp_panic(sdev, HDA_DSP_PANIC_OFFSET(msg_ext),
340 non_recoverable);
341 } else {
342 /* normal message - process normally */
343 snd_sof_ipc_msgs_rx(sdev);
344 }
345
346 hda_dsp_ipc_host_done(sdev);
347
348 ipc_irq = true;
349 }
350
351 if (!ipc_irq) {
352 /*
353 * This interrupt is not shared so no need to return IRQ_NONE.
354 */
355 dev_dbg_ratelimited(sdev->dev,
356 "nothing to do in IPC IRQ thread\n");
357 }
358
359 return IRQ_HANDLED;
360}
361EXPORT_SYMBOL_NS(hda_dsp_ipc_irq_thread, "SND_SOC_SOF_INTEL_HDA_COMMON");
362
363/* Check if an IPC IRQ occurred */
364bool hda_dsp_check_ipc_irq(struct snd_sof_dev *sdev)
365{
366 struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
367 bool ret = false;
368 u32 irq_status;
369
370 if (sdev->dspless_mode_selected)
371 return false;
372
373 /* store status */
374 irq_status = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_ADSPIS);
375 trace_sof_intel_hda_irq_ipc_check(sdev, irq_status);
376
377 /* invalid message ? */
378 if (irq_status == 0xffffffff)
379 goto out;
380
381 /* IPC message ? */
382 if (irq_status & HDA_DSP_ADSPIS_IPC)
383 ret = true;
384
385 /* CLDMA message ? */
386 if (irq_status & HDA_DSP_ADSPIS_CL_DMA) {
387 hda->code_loading = 0;
388 wake_up(&hda->waitq);
389 ret = false;
390 }
391
392out:
393 return ret;
394}
395EXPORT_SYMBOL_NS(hda_dsp_check_ipc_irq, "SND_SOC_SOF_INTEL_HDA_COMMON");
396
397int hda_dsp_ipc_get_mailbox_offset(struct snd_sof_dev *sdev)
398{
399 return HDA_DSP_MBOX_UPLINK_OFFSET;
400}
401EXPORT_SYMBOL_NS(hda_dsp_ipc_get_mailbox_offset, "SND_SOC_SOF_INTEL_HDA_COMMON");
402
403int hda_dsp_ipc_get_window_offset(struct snd_sof_dev *sdev, u32 id)
404{
405 return SRAM_WINDOW_OFFSET(id);
406}
407EXPORT_SYMBOL_NS(hda_dsp_ipc_get_window_offset, "SND_SOC_SOF_INTEL_HDA_COMMON");
408
409int hda_ipc_msg_data(struct snd_sof_dev *sdev,
410 struct snd_sof_pcm_stream *sps,
411 void *p, size_t sz)
412{
413 if (!sps || !sdev->stream_box.size) {
414 sof_mailbox_read(sdev, offset: sdev->dsp_box.offset, message: p, bytes: sz);
415 } else {
416 struct snd_pcm_substream *substream = sps->substream;
417 struct hdac_stream *hstream = substream->runtime->private_data;
418 struct sof_intel_hda_stream *hda_stream;
419
420 hda_stream = container_of(hstream,
421 struct sof_intel_hda_stream,
422 hext_stream.hstream);
423
424 /* The stream might already be closed */
425 if (!hstream)
426 return -ESTRPIPE;
427
428 sof_mailbox_read(sdev, offset: hda_stream->sof_intel_stream.posn_offset, message: p, bytes: sz);
429 }
430
431 return 0;
432}
433EXPORT_SYMBOL_NS(hda_ipc_msg_data, "SND_SOC_SOF_INTEL_HDA_COMMON");
434
435int hda_set_stream_data_offset(struct snd_sof_dev *sdev,
436 struct snd_sof_pcm_stream *sps,
437 size_t posn_offset)
438{
439 struct snd_pcm_substream *substream = sps->substream;
440 struct hdac_stream *hstream = substream->runtime->private_data;
441 struct sof_intel_hda_stream *hda_stream;
442
443 hda_stream = container_of(hstream, struct sof_intel_hda_stream,
444 hext_stream.hstream);
445
446 /* check for unaligned offset or overflow */
447 if (posn_offset > sdev->stream_box.size ||
448 posn_offset % sizeof(struct sof_ipc_stream_posn) != 0)
449 return -EINVAL;
450
451 hda_stream->sof_intel_stream.posn_offset = sdev->stream_box.offset + posn_offset;
452
453 dev_dbg(sdev->dev, "pcm: stream dir %d, posn mailbox offset is %zu",
454 substream->stream, hda_stream->sof_intel_stream.posn_offset);
455
456 return 0;
457}
458EXPORT_SYMBOL_NS(hda_set_stream_data_offset, "SND_SOC_SOF_INTEL_HDA_COMMON");
459
460void hda_ipc4_dsp_dump(struct snd_sof_dev *sdev, u32 flags)
461{
462 char *level = (flags & SOF_DBG_DUMP_OPTIONAL) ? KERN_DEBUG : KERN_ERR;
463
464 /* print ROM/FW status */
465 hda_dsp_get_state(sdev, level);
466
467 if (flags & SOF_DBG_DUMP_REGS)
468 sof_ipc4_intel_dump_telemetry_state(sdev, flags);
469 else
470 hda_dsp_dump_ext_rom_status(sdev, level, flags);
471}
472EXPORT_SYMBOL_NS(hda_ipc4_dsp_dump, "SND_SOC_SOF_INTEL_HDA_COMMON");
473
474bool hda_check_ipc_irq(struct snd_sof_dev *sdev)
475{
476 const struct sof_intel_dsp_desc *chip;
477
478 chip = get_chip_info(pdata: sdev->pdata);
479 if (chip && chip->check_ipc_irq)
480 return chip->check_ipc_irq(sdev);
481
482 return false;
483}
484EXPORT_SYMBOL_NS(hda_check_ipc_irq, "SND_SOC_SOF_INTEL_HDA_COMMON");
485
486void hda_ipc_irq_dump(struct snd_sof_dev *sdev)
487{
488 u32 adspis;
489 u32 intsts;
490 u32 intctl;
491 u32 ppsts;
492 u8 rirbsts;
493
494 /* read key IRQ stats and config registers */
495 adspis = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_ADSPIS);
496 intsts = snd_sof_dsp_read(sdev, HDA_DSP_HDA_BAR, SOF_HDA_INTSTS);
497 intctl = snd_sof_dsp_read(sdev, HDA_DSP_HDA_BAR, SOF_HDA_INTCTL);
498 ppsts = snd_sof_dsp_read(sdev, HDA_DSP_PP_BAR, SOF_HDA_REG_PP_PPSTS);
499 rirbsts = snd_sof_dsp_read8(sdev, HDA_DSP_HDA_BAR, AZX_REG_RIRBSTS);
500
501 dev_err(sdev->dev, "hda irq intsts 0x%8.8x intlctl 0x%8.8x rirb %2.2x\n",
502 intsts, intctl, rirbsts);
503 dev_err(sdev->dev, "dsp irq ppsts 0x%8.8x adspis 0x%8.8x\n", ppsts, adspis);
504}
505EXPORT_SYMBOL_NS(hda_ipc_irq_dump, "SND_SOC_SOF_INTEL_HDA_COMMON");
506
507void hda_ipc_dump(struct snd_sof_dev *sdev)
508{
509 u32 hipcie;
510 u32 hipct;
511 u32 hipcctl;
512
513 hda_ipc_irq_dump(sdev);
514
515 /* read IPC status */
516 hipcie = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCIE);
517 hipct = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCT);
518 hipcctl = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCCTL);
519
520 /* dump the IPC regs */
521 /* TODO: parse the raw msg */
522 dev_err(sdev->dev, "host status 0x%8.8x dsp status 0x%8.8x mask 0x%8.8x\n",
523 hipcie, hipct, hipcctl);
524}
525EXPORT_SYMBOL_NS(hda_ipc_dump, "SND_SOC_SOF_INTEL_HDA_COMMON");
526
527void hda_ipc4_dump(struct snd_sof_dev *sdev)
528{
529 u32 hipci, hipcie, hipct, hipcte, hipcctl;
530
531 hda_ipc_irq_dump(sdev);
532
533 hipci = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCI);
534 hipcie = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCIE);
535 hipct = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCT);
536 hipcte = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCTE);
537 hipcctl = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_HIPCCTL);
538
539 /* dump the IPC regs */
540 /* TODO: parse the raw msg */
541 dev_err(sdev->dev, "Host IPC initiator: %#x|%#x, target: %#x|%#x, ctl: %#x\n",
542 hipci, hipcie, hipct, hipcte, hipcctl);
543}
544EXPORT_SYMBOL_NS(hda_ipc4_dump, "SND_SOC_SOF_INTEL_HDA_COMMON");
545
546bool hda_ipc4_tx_is_busy(struct snd_sof_dev *sdev)
547{
548 struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
549 const struct sof_intel_dsp_desc *chip = hda->desc;
550 u32 val;
551
552 val = snd_sof_dsp_read(sdev, HDA_DSP_BAR, offset: chip->ipc_req);
553
554 return !!(val & chip->ipc_req_mask);
555}
556EXPORT_SYMBOL_NS(hda_ipc4_tx_is_busy, "SND_SOC_SOF_INTEL_HDA_COMMON");
557

source code of linux/sound/soc/sof/intel/hda-ipc.c