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15#include <linux/types.h>
16#include <linux/kernel.h>
17#include <linux/list.h>
18#include <linux/device.h>
19#include <linux/wait.h>
20#include <linux/spinlock.h>
21#include <linux/workqueue.h>
22#include <linux/export.h>
23#include <linux/slab.h>
24#include <linux/delay.h>
25#include <linux/platform_device.h>
26#include <linux/firmware.h>
27#include <linux/io.h>
28#include <asm/div64.h>
29
30#include "sst-baytrail-ipc.h"
31#include "../common/sst-dsp.h"
32#include "../common/sst-dsp-priv.h"
33#include "../common/sst-ipc.h"
34
35
36#define IPC_TIMEOUT_MSECS 300
37#define IPC_BOOT_MSECS 200
38
39#define IPC_EMPTY_LIST_SIZE 8
40
41
42#define IPC_HEADER_MSG_ID_MASK 0xff
43#define IPC_HEADER_MSG_ID(x) ((x) & IPC_HEADER_MSG_ID_MASK)
44#define IPC_HEADER_STR_ID_SHIFT 8
45#define IPC_HEADER_STR_ID_MASK 0x1f
46#define IPC_HEADER_STR_ID(x) (((x) & 0x1f) << IPC_HEADER_STR_ID_SHIFT)
47#define IPC_HEADER_LARGE_SHIFT 13
48#define IPC_HEADER_LARGE(x) (((x) & 0x1) << IPC_HEADER_LARGE_SHIFT)
49#define IPC_HEADER_DATA_SHIFT 16
50#define IPC_HEADER_DATA_MASK 0x3fff
51#define IPC_HEADER_DATA(x) (((x) & 0x3fff) << IPC_HEADER_DATA_SHIFT)
52
53
54#define IPC_NOTIFICATION (0x1 << 7)
55
56
57#define IPC_IA_ALLOC_STREAM 0x20
58#define IPC_IA_FREE_STREAM 0x21
59#define IPC_IA_PAUSE_STREAM 0x24
60#define IPC_IA_RESUME_STREAM 0x25
61#define IPC_IA_DROP_STREAM 0x26
62#define IPC_IA_START_STREAM 0x30
63
64
65#define IPC_IA_FW_INIT_CMPLT 0x81
66#define IPC_SST_PERIOD_ELAPSED 0x97
67
68
69struct sst_byt_address_info {
70 u32 addr;
71 u32 size;
72} __packed;
73
74struct sst_byt_str_type {
75 u8 codec_type;
76 u8 str_type;
77 u8 operation;
78 u8 protected_str;
79 u8 time_slots;
80 u8 reserved;
81 u16 result;
82} __packed;
83
84struct sst_byt_pcm_params {
85 u8 num_chan;
86 u8 pcm_wd_sz;
87 u8 use_offload_path;
88 u8 reserved;
89 u32 sfreq;
90 u8 channel_map[8];
91} __packed;
92
93struct sst_byt_frames_info {
94 u16 num_entries;
95 u16 rsrvd;
96 u32 frag_size;
97 struct sst_byt_address_info ring_buf_info[8];
98} __packed;
99
100struct sst_byt_alloc_params {
101 struct sst_byt_str_type str_type;
102 struct sst_byt_pcm_params pcm_params;
103 struct sst_byt_frames_info frame_info;
104} __packed;
105
106struct sst_byt_alloc_response {
107 struct sst_byt_str_type str_type;
108 u8 reserved[88];
109} __packed;
110
111struct sst_byt_start_stream_params {
112 u32 byte_offset;
113} __packed;
114
115struct sst_byt_tstamp {
116 u64 ring_buffer_counter;
117 u64 hardware_counter;
118 u64 frames_decoded;
119 u64 bytes_decoded;
120 u64 bytes_copied;
121 u32 sampling_frequency;
122 u32 channel_peak[8];
123} __packed;
124
125struct sst_byt_fw_version {
126 u8 build;
127 u8 minor;
128 u8 major;
129 u8 type;
130} __packed;
131
132struct sst_byt_fw_build_info {
133 u8 date[16];
134 u8 time[16];
135} __packed;
136
137struct sst_byt_fw_init {
138 struct sst_byt_fw_version fw_version;
139 struct sst_byt_fw_build_info build_info;
140 u16 result;
141 u8 module_id;
142 u8 debug_info;
143} __packed;
144
145struct sst_byt_stream;
146struct sst_byt;
147
148
149struct sst_byt_stream {
150 struct list_head node;
151
152
153 struct sst_byt_alloc_params request;
154 struct sst_byt_alloc_response reply;
155
156
157 struct sst_byt *byt;
158 int str_id;
159 bool commited;
160 bool running;
161
162
163 u32 (*notify_position)(struct sst_byt_stream *stream, void *data);
164 void *pdata;
165};
166
167
168struct sst_byt {
169 struct device *dev;
170 struct sst_dsp *dsp;
171
172
173 struct list_head stream_list;
174
175
176 wait_queue_head_t boot_wait;
177 bool boot_complete;
178 struct sst_fw *fw;
179
180
181 struct sst_generic_ipc ipc;
182};
183
184static inline u64 sst_byt_header(int msg_id, int data, bool large, int str_id)
185{
186 return IPC_HEADER_MSG_ID(msg_id) | IPC_HEADER_STR_ID(str_id) |
187 IPC_HEADER_LARGE(large) | IPC_HEADER_DATA(data) |
188 SST_BYT_IPCX_BUSY;
189}
190
191static inline u16 sst_byt_header_msg_id(u64 header)
192{
193 return header & IPC_HEADER_MSG_ID_MASK;
194}
195
196static inline u8 sst_byt_header_str_id(u64 header)
197{
198 return (header >> IPC_HEADER_STR_ID_SHIFT) & IPC_HEADER_STR_ID_MASK;
199}
200
201static inline u16 sst_byt_header_data(u64 header)
202{
203 return (header >> IPC_HEADER_DATA_SHIFT) & IPC_HEADER_DATA_MASK;
204}
205
206static struct sst_byt_stream *sst_byt_get_stream(struct sst_byt *byt,
207 int stream_id)
208{
209 struct sst_byt_stream *stream;
210
211 list_for_each_entry(stream, &byt->stream_list, node) {
212 if (stream->str_id == stream_id)
213 return stream;
214 }
215
216 return NULL;
217}
218
219static void sst_byt_stream_update(struct sst_byt *byt, struct ipc_message *msg)
220{
221 struct sst_byt_stream *stream;
222 u64 header = msg->header;
223 u8 stream_id = sst_byt_header_str_id(header);
224 u8 stream_msg = sst_byt_header_msg_id(header);
225
226 stream = sst_byt_get_stream(byt, stream_id);
227 if (stream == NULL)
228 return;
229
230 switch (stream_msg) {
231 case IPC_IA_DROP_STREAM:
232 case IPC_IA_PAUSE_STREAM:
233 case IPC_IA_FREE_STREAM:
234 stream->running = false;
235 break;
236 case IPC_IA_START_STREAM:
237 case IPC_IA_RESUME_STREAM:
238 stream->running = true;
239 break;
240 }
241}
242
243static int sst_byt_process_reply(struct sst_byt *byt, u64 header)
244{
245 struct ipc_message *msg;
246
247 msg = sst_ipc_reply_find_msg(&byt->ipc, header);
248 if (msg == NULL)
249 return 1;
250
251 if (header & IPC_HEADER_LARGE(true)) {
252 msg->rx_size = sst_byt_header_data(header);
253 sst_dsp_inbox_read(byt->dsp, msg->rx_data, msg->rx_size);
254 }
255
256
257 sst_byt_stream_update(byt, msg);
258
259 list_del(&msg->list);
260
261 sst_ipc_tx_msg_reply_complete(&byt->ipc, msg);
262
263 return 1;
264}
265
266static void sst_byt_fw_ready(struct sst_byt *byt, u64 header)
267{
268 dev_dbg(byt->dev, "ipc: DSP is ready 0x%llX\n", header);
269
270 byt->boot_complete = true;
271 wake_up(&byt->boot_wait);
272}
273
274static int sst_byt_process_notification(struct sst_byt *byt,
275 unsigned long *flags)
276{
277 struct sst_dsp *sst = byt->dsp;
278 struct sst_byt_stream *stream;
279 u64 header;
280 u8 msg_id, stream_id;
281 int handled = 1;
282
283 header = sst_dsp_shim_read64_unlocked(sst, SST_IPCD);
284 msg_id = sst_byt_header_msg_id(header);
285
286 switch (msg_id) {
287 case IPC_SST_PERIOD_ELAPSED:
288 stream_id = sst_byt_header_str_id(header);
289 stream = sst_byt_get_stream(byt, stream_id);
290 if (stream && stream->running && stream->notify_position) {
291 spin_unlock_irqrestore(&sst->spinlock, *flags);
292 stream->notify_position(stream, stream->pdata);
293 spin_lock_irqsave(&sst->spinlock, *flags);
294 }
295 break;
296 case IPC_IA_FW_INIT_CMPLT:
297 sst_byt_fw_ready(byt, header);
298 break;
299 }
300
301 return handled;
302}
303
304static irqreturn_t sst_byt_irq_thread(int irq, void *context)
305{
306 struct sst_dsp *sst = (struct sst_dsp *) context;
307 struct sst_byt *byt = sst_dsp_get_thread_context(sst);
308 struct sst_generic_ipc *ipc = &byt->ipc;
309 u64 header;
310 unsigned long flags;
311
312 spin_lock_irqsave(&sst->spinlock, flags);
313
314 header = sst_dsp_shim_read64_unlocked(sst, SST_IPCD);
315 if (header & SST_BYT_IPCD_BUSY) {
316 if (header & IPC_NOTIFICATION) {
317
318 sst_byt_process_notification(byt, &flags);
319 } else {
320
321 sst_byt_process_reply(byt, header);
322 }
323
324
325
326
327
328 sst_dsp_shim_update_bits64_unlocked(sst, SST_IPCD,
329 SST_BYT_IPCD_DONE | SST_BYT_IPCD_BUSY |
330 IPC_HEADER_DATA(IPC_HEADER_DATA_MASK),
331 SST_BYT_IPCD_DONE);
332
333 sst_dsp_shim_update_bits64_unlocked(sst, SST_IMRX,
334 SST_BYT_IMRX_REQUEST, 0);
335 }
336
337 spin_unlock_irqrestore(&sst->spinlock, flags);
338
339
340 schedule_work(&ipc->kwork);
341
342 return IRQ_HANDLED;
343}
344
345
346struct sst_byt_stream *sst_byt_stream_new(struct sst_byt *byt, int id,
347 u32 (*notify_position)(struct sst_byt_stream *stream, void *data),
348 void *data)
349{
350 struct sst_byt_stream *stream;
351 struct sst_dsp *sst = byt->dsp;
352 unsigned long flags;
353
354 stream = kzalloc(sizeof(*stream), GFP_KERNEL);
355 if (stream == NULL)
356 return NULL;
357
358 spin_lock_irqsave(&sst->spinlock, flags);
359 list_add(&stream->node, &byt->stream_list);
360 stream->notify_position = notify_position;
361 stream->pdata = data;
362 stream->byt = byt;
363 stream->str_id = id;
364 spin_unlock_irqrestore(&sst->spinlock, flags);
365
366 return stream;
367}
368
369int sst_byt_stream_set_bits(struct sst_byt *byt, struct sst_byt_stream *stream,
370 int bits)
371{
372 stream->request.pcm_params.pcm_wd_sz = bits;
373 return 0;
374}
375
376int sst_byt_stream_set_channels(struct sst_byt *byt,
377 struct sst_byt_stream *stream, u8 channels)
378{
379 stream->request.pcm_params.num_chan = channels;
380 return 0;
381}
382
383int sst_byt_stream_set_rate(struct sst_byt *byt, struct sst_byt_stream *stream,
384 unsigned int rate)
385{
386 stream->request.pcm_params.sfreq = rate;
387 return 0;
388}
389
390
391int sst_byt_stream_type(struct sst_byt *byt, struct sst_byt_stream *stream,
392 int codec_type, int stream_type, int operation)
393{
394 stream->request.str_type.codec_type = codec_type;
395 stream->request.str_type.str_type = stream_type;
396 stream->request.str_type.operation = operation;
397 stream->request.str_type.time_slots = 0xc;
398
399 return 0;
400}
401
402int sst_byt_stream_buffer(struct sst_byt *byt, struct sst_byt_stream *stream,
403 uint32_t buffer_addr, uint32_t buffer_size)
404{
405 stream->request.frame_info.num_entries = 1;
406 stream->request.frame_info.ring_buf_info[0].addr = buffer_addr;
407 stream->request.frame_info.ring_buf_info[0].size = buffer_size;
408
409 stream->request.frame_info.frag_size =
410 stream->request.pcm_params.sfreq *
411 stream->request.pcm_params.num_chan *
412 stream->request.pcm_params.pcm_wd_sz / 8 *
413 4 / 1000;
414 return 0;
415}
416
417int sst_byt_stream_commit(struct sst_byt *byt, struct sst_byt_stream *stream)
418{
419 struct sst_byt_alloc_params *str_req = &stream->request;
420 struct sst_byt_alloc_response *reply = &stream->reply;
421 u64 header;
422 int ret;
423
424 header = sst_byt_header(IPC_IA_ALLOC_STREAM,
425 sizeof(*str_req) + sizeof(u32),
426 true, stream->str_id);
427 ret = sst_ipc_tx_message_wait(&byt->ipc, header, str_req,
428 sizeof(*str_req),
429 reply, sizeof(*reply));
430 if (ret < 0) {
431 dev_err(byt->dev, "ipc: error stream commit failed\n");
432 return ret;
433 }
434
435 stream->commited = true;
436
437 return 0;
438}
439
440int sst_byt_stream_free(struct sst_byt *byt, struct sst_byt_stream *stream)
441{
442 u64 header;
443 int ret = 0;
444 struct sst_dsp *sst = byt->dsp;
445 unsigned long flags;
446
447 if (!stream->commited)
448 goto out;
449
450 header = sst_byt_header(IPC_IA_FREE_STREAM, 0, false, stream->str_id);
451 ret = sst_ipc_tx_message_wait(&byt->ipc, header, NULL, 0, NULL, 0);
452 if (ret < 0) {
453 dev_err(byt->dev, "ipc: free stream %d failed\n",
454 stream->str_id);
455 return -EAGAIN;
456 }
457
458 stream->commited = false;
459out:
460 spin_lock_irqsave(&sst->spinlock, flags);
461 list_del(&stream->node);
462 kfree(stream);
463 spin_unlock_irqrestore(&sst->spinlock, flags);
464
465 return ret;
466}
467
468static int sst_byt_stream_operations(struct sst_byt *byt, int type,
469 int stream_id, int wait)
470{
471 u64 header;
472
473 header = sst_byt_header(type, 0, false, stream_id);
474 if (wait)
475 return sst_ipc_tx_message_wait(&byt->ipc, header, NULL,
476 0, NULL, 0);
477 else
478 return sst_ipc_tx_message_nowait(&byt->ipc, header,
479 NULL, 0);
480}
481
482
483int sst_byt_stream_start(struct sst_byt *byt, struct sst_byt_stream *stream,
484 u32 start_offset)
485{
486 struct sst_byt_start_stream_params start_stream;
487 void *tx_msg;
488 size_t size;
489 u64 header;
490 int ret;
491
492 start_stream.byte_offset = start_offset;
493 header = sst_byt_header(IPC_IA_START_STREAM,
494 sizeof(start_stream) + sizeof(u32),
495 true, stream->str_id);
496 tx_msg = &start_stream;
497 size = sizeof(start_stream);
498
499 ret = sst_ipc_tx_message_nowait(&byt->ipc, header, tx_msg, size);
500 if (ret < 0)
501 dev_err(byt->dev, "ipc: error failed to start stream %d\n",
502 stream->str_id);
503
504 return ret;
505}
506
507int sst_byt_stream_stop(struct sst_byt *byt, struct sst_byt_stream *stream)
508{
509 int ret;
510
511
512 if (!stream->commited)
513 return 0;
514
515 ret = sst_byt_stream_operations(byt, IPC_IA_DROP_STREAM,
516 stream->str_id, 0);
517 if (ret < 0)
518 dev_err(byt->dev, "ipc: error failed to stop stream %d\n",
519 stream->str_id);
520 return ret;
521}
522
523int sst_byt_stream_pause(struct sst_byt *byt, struct sst_byt_stream *stream)
524{
525 int ret;
526
527 ret = sst_byt_stream_operations(byt, IPC_IA_PAUSE_STREAM,
528 stream->str_id, 0);
529 if (ret < 0)
530 dev_err(byt->dev, "ipc: error failed to pause stream %d\n",
531 stream->str_id);
532
533 return ret;
534}
535
536int sst_byt_stream_resume(struct sst_byt *byt, struct sst_byt_stream *stream)
537{
538 int ret;
539
540 ret = sst_byt_stream_operations(byt, IPC_IA_RESUME_STREAM,
541 stream->str_id, 0);
542 if (ret < 0)
543 dev_err(byt->dev, "ipc: error failed to resume stream %d\n",
544 stream->str_id);
545
546 return ret;
547}
548
549int sst_byt_get_dsp_position(struct sst_byt *byt,
550 struct sst_byt_stream *stream, int buffer_size)
551{
552 struct sst_dsp *sst = byt->dsp;
553 struct sst_byt_tstamp fw_tstamp;
554 u8 str_id = stream->str_id;
555 u32 tstamp_offset;
556
557 tstamp_offset = SST_BYT_TIMESTAMP_OFFSET + str_id * sizeof(fw_tstamp);
558 memcpy_fromio(&fw_tstamp,
559 sst->addr.lpe + tstamp_offset, sizeof(fw_tstamp));
560
561 return do_div(fw_tstamp.ring_buffer_counter, buffer_size);
562}
563
564struct sst_dsp *sst_byt_get_dsp(struct sst_byt *byt)
565{
566 return byt->dsp;
567}
568
569static struct sst_dsp_device byt_dev = {
570 .thread = sst_byt_irq_thread,
571 .ops = &sst_byt_ops,
572};
573
574int sst_byt_dsp_suspend_late(struct device *dev, struct sst_pdata *pdata)
575{
576 struct sst_byt *byt = pdata->dsp;
577
578 dev_dbg(byt->dev, "dsp reset\n");
579 sst_dsp_reset(byt->dsp);
580 sst_ipc_drop_all(&byt->ipc);
581 dev_dbg(byt->dev, "dsp in reset\n");
582
583 dev_dbg(byt->dev, "free all blocks and unload fw\n");
584 sst_fw_unload(byt->fw);
585
586 return 0;
587}
588EXPORT_SYMBOL_GPL(sst_byt_dsp_suspend_late);
589
590int sst_byt_dsp_boot(struct device *dev, struct sst_pdata *pdata)
591{
592 struct sst_byt *byt = pdata->dsp;
593 int ret;
594
595 dev_dbg(byt->dev, "reload dsp fw\n");
596
597 sst_dsp_reset(byt->dsp);
598
599 ret = sst_fw_reload(byt->fw);
600 if (ret < 0) {
601 dev_err(dev, "error: failed to reload firmware\n");
602 return ret;
603 }
604
605
606 byt->boot_complete = false;
607 sst_dsp_boot(byt->dsp);
608 dev_dbg(byt->dev, "dsp booting...\n");
609
610 return 0;
611}
612EXPORT_SYMBOL_GPL(sst_byt_dsp_boot);
613
614int sst_byt_dsp_wait_for_ready(struct device *dev, struct sst_pdata *pdata)
615{
616 struct sst_byt *byt = pdata->dsp;
617 int err;
618
619 dev_dbg(byt->dev, "wait for dsp reboot\n");
620
621 err = wait_event_timeout(byt->boot_wait, byt->boot_complete,
622 msecs_to_jiffies(IPC_BOOT_MSECS));
623 if (err == 0) {
624 dev_err(byt->dev, "ipc: error DSP boot timeout\n");
625 return -EIO;
626 }
627
628 dev_dbg(byt->dev, "dsp rebooted\n");
629 return 0;
630}
631EXPORT_SYMBOL_GPL(sst_byt_dsp_wait_for_ready);
632
633static void byt_tx_msg(struct sst_generic_ipc *ipc, struct ipc_message *msg)
634{
635 if (msg->header & IPC_HEADER_LARGE(true))
636 sst_dsp_outbox_write(ipc->dsp, msg->tx_data, msg->tx_size);
637
638 sst_dsp_shim_write64_unlocked(ipc->dsp, SST_IPCX, msg->header);
639}
640
641static void byt_shim_dbg(struct sst_generic_ipc *ipc, const char *text)
642{
643 struct sst_dsp *sst = ipc->dsp;
644 u64 isr, ipcd, imrx, ipcx;
645
646 ipcx = sst_dsp_shim_read64_unlocked(sst, SST_IPCX);
647 isr = sst_dsp_shim_read64_unlocked(sst, SST_ISRX);
648 ipcd = sst_dsp_shim_read64_unlocked(sst, SST_IPCD);
649 imrx = sst_dsp_shim_read64_unlocked(sst, SST_IMRX);
650
651 dev_err(ipc->dev,
652 "ipc: --%s-- ipcx 0x%llx isr 0x%llx ipcd 0x%llx imrx 0x%llx\n",
653 text, ipcx, isr, ipcd, imrx);
654}
655
656static void byt_tx_data_copy(struct ipc_message *msg, char *tx_data,
657 size_t tx_size)
658{
659
660 *(u32 *)msg->tx_data = (u32)(msg->header & (u32)-1);
661 memcpy(msg->tx_data + sizeof(u32), tx_data, tx_size);
662 msg->tx_size += sizeof(u32);
663}
664
665static u64 byt_reply_msg_match(u64 header, u64 *mask)
666{
667
668 *mask = IPC_HEADER_MSG_ID_MASK |
669 IPC_HEADER_STR_ID_MASK << IPC_HEADER_STR_ID_SHIFT;
670 header &= *mask;
671
672 return header;
673}
674
675static bool byt_is_dsp_busy(struct sst_dsp *dsp)
676{
677 u64 ipcx;
678
679 ipcx = sst_dsp_shim_read_unlocked(dsp, SST_IPCX);
680 return (ipcx & (SST_IPCX_BUSY | SST_IPCX_DONE));
681}
682
683int sst_byt_dsp_init(struct device *dev, struct sst_pdata *pdata)
684{
685 struct sst_byt *byt;
686 struct sst_generic_ipc *ipc;
687 struct sst_fw *byt_sst_fw;
688 struct sst_byt_fw_init init;
689 int err;
690
691 dev_dbg(dev, "initialising Byt DSP IPC\n");
692
693 byt = devm_kzalloc(dev, sizeof(*byt), GFP_KERNEL);
694 if (byt == NULL)
695 return -ENOMEM;
696
697 byt->dev = dev;
698
699 ipc = &byt->ipc;
700 ipc->dev = dev;
701 ipc->ops.tx_msg = byt_tx_msg;
702 ipc->ops.shim_dbg = byt_shim_dbg;
703 ipc->ops.tx_data_copy = byt_tx_data_copy;
704 ipc->ops.reply_msg_match = byt_reply_msg_match;
705 ipc->ops.is_dsp_busy = byt_is_dsp_busy;
706 ipc->tx_data_max_size = IPC_MAX_MAILBOX_BYTES;
707 ipc->rx_data_max_size = IPC_MAX_MAILBOX_BYTES;
708
709 err = sst_ipc_init(ipc);
710 if (err != 0)
711 goto ipc_init_err;
712
713 INIT_LIST_HEAD(&byt->stream_list);
714 init_waitqueue_head(&byt->boot_wait);
715 byt_dev.thread_context = byt;
716
717
718 byt->dsp = sst_dsp_new(dev, &byt_dev, pdata);
719 if (byt->dsp == NULL) {
720 err = -ENODEV;
721 goto dsp_new_err;
722 }
723
724 ipc->dsp = byt->dsp;
725
726
727 sst_dsp_reset(byt->dsp);
728
729 byt_sst_fw = sst_fw_new(byt->dsp, pdata->fw, byt);
730 if (byt_sst_fw == NULL) {
731 err = -ENODEV;
732 dev_err(dev, "error: failed to load firmware\n");
733 goto fw_err;
734 }
735
736
737 sst_dsp_boot(byt->dsp);
738 err = wait_event_timeout(byt->boot_wait, byt->boot_complete,
739 msecs_to_jiffies(IPC_BOOT_MSECS));
740 if (err == 0) {
741 err = -EIO;
742 dev_err(byt->dev, "ipc: error DSP boot timeout\n");
743 goto boot_err;
744 }
745
746
747 sst_dsp_inbox_read(byt->dsp, &init, sizeof(init));
748 dev_info(byt->dev, "FW version: %02x.%02x.%02x.%02x\n",
749 init.fw_version.major, init.fw_version.minor,
750 init.fw_version.build, init.fw_version.type);
751 dev_info(byt->dev, "Build type: %x\n", init.fw_version.type);
752 dev_info(byt->dev, "Build date: %s %s\n",
753 init.build_info.date, init.build_info.time);
754
755 pdata->dsp = byt;
756 byt->fw = byt_sst_fw;
757
758 return 0;
759
760boot_err:
761 sst_dsp_reset(byt->dsp);
762 sst_fw_free(byt_sst_fw);
763fw_err:
764 sst_dsp_free(byt->dsp);
765dsp_new_err:
766 sst_ipc_fini(ipc);
767ipc_init_err:
768
769 return err;
770}
771EXPORT_SYMBOL_GPL(sst_byt_dsp_init);
772
773void sst_byt_dsp_free(struct device *dev, struct sst_pdata *pdata)
774{
775 struct sst_byt *byt = pdata->dsp;
776
777 sst_dsp_reset(byt->dsp);
778 sst_fw_free_all(byt->dsp);
779 sst_dsp_free(byt->dsp);
780 sst_ipc_fini(&byt->ipc);
781}
782EXPORT_SYMBOL_GPL(sst_byt_dsp_free);
783
