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6
7#include <linux/types.h>
8#include <linux/kernel.h>
9#include <linux/list.h>
10#include <linux/device.h>
11#include <linux/wait.h>
12#include <linux/spinlock.h>
13#include <linux/workqueue.h>
14#include <linux/export.h>
15#include <linux/slab.h>
16#include <linux/delay.h>
17#include <linux/platform_device.h>
18#include <linux/firmware.h>
19#include <linux/io.h>
20#include <asm/div64.h>
21
22#include "sst-baytrail-ipc.h"
23#include "../common/sst-dsp.h"
24#include "../common/sst-dsp-priv.h"
25#include "../common/sst-ipc.h"
26
27
28#define IPC_TIMEOUT_MSECS 300
29#define IPC_BOOT_MSECS 200
30
31#define IPC_EMPTY_LIST_SIZE 8
32
33
34#define IPC_HEADER_MSG_ID_MASK 0xff
35#define IPC_HEADER_MSG_ID(x) ((x) & IPC_HEADER_MSG_ID_MASK)
36#define IPC_HEADER_STR_ID_SHIFT 8
37#define IPC_HEADER_STR_ID_MASK 0x1f
38#define IPC_HEADER_STR_ID(x) (((x) & 0x1f) << IPC_HEADER_STR_ID_SHIFT)
39#define IPC_HEADER_LARGE_SHIFT 13
40#define IPC_HEADER_LARGE(x) (((x) & 0x1) << IPC_HEADER_LARGE_SHIFT)
41#define IPC_HEADER_DATA_SHIFT 16
42#define IPC_HEADER_DATA_MASK 0x3fff
43#define IPC_HEADER_DATA(x) (((x) & 0x3fff) << IPC_HEADER_DATA_SHIFT)
44
45
46#define IPC_NOTIFICATION (0x1 << 7)
47
48
49#define IPC_IA_ALLOC_STREAM 0x20
50#define IPC_IA_FREE_STREAM 0x21
51#define IPC_IA_PAUSE_STREAM 0x24
52#define IPC_IA_RESUME_STREAM 0x25
53#define IPC_IA_DROP_STREAM 0x26
54#define IPC_IA_START_STREAM 0x30
55
56
57#define IPC_IA_FW_INIT_CMPLT 0x81
58#define IPC_SST_PERIOD_ELAPSED 0x97
59
60
61struct sst_byt_address_info {
62 u32 addr;
63 u32 size;
64} __packed;
65
66struct sst_byt_str_type {
67 u8 codec_type;
68 u8 str_type;
69 u8 operation;
70 u8 protected_str;
71 u8 time_slots;
72 u8 reserved;
73 u16 result;
74} __packed;
75
76struct sst_byt_pcm_params {
77 u8 num_chan;
78 u8 pcm_wd_sz;
79 u8 use_offload_path;
80 u8 reserved;
81 u32 sfreq;
82 u8 channel_map[8];
83} __packed;
84
85struct sst_byt_frames_info {
86 u16 num_entries;
87 u16 rsrvd;
88 u32 frag_size;
89 struct sst_byt_address_info ring_buf_info[8];
90} __packed;
91
92struct sst_byt_alloc_params {
93 struct sst_byt_str_type str_type;
94 struct sst_byt_pcm_params pcm_params;
95 struct sst_byt_frames_info frame_info;
96} __packed;
97
98struct sst_byt_alloc_response {
99 struct sst_byt_str_type str_type;
100 u8 reserved[88];
101} __packed;
102
103struct sst_byt_start_stream_params {
104 u32 byte_offset;
105} __packed;
106
107struct sst_byt_tstamp {
108 u64 ring_buffer_counter;
109 u64 hardware_counter;
110 u64 frames_decoded;
111 u64 bytes_decoded;
112 u64 bytes_copied;
113 u32 sampling_frequency;
114 u32 channel_peak[8];
115} __packed;
116
117struct sst_byt_fw_version {
118 u8 build;
119 u8 minor;
120 u8 major;
121 u8 type;
122} __packed;
123
124struct sst_byt_fw_build_info {
125 u8 date[16];
126 u8 time[16];
127} __packed;
128
129struct sst_byt_fw_init {
130 struct sst_byt_fw_version fw_version;
131 struct sst_byt_fw_build_info build_info;
132 u16 result;
133 u8 module_id;
134 u8 debug_info;
135} __packed;
136
137struct sst_byt_stream;
138struct sst_byt;
139
140
141struct sst_byt_stream {
142 struct list_head node;
143
144
145 struct sst_byt_alloc_params request;
146 struct sst_byt_alloc_response reply;
147
148
149 struct sst_byt *byt;
150 int str_id;
151 bool commited;
152 bool running;
153
154
155 u32 (*notify_position)(struct sst_byt_stream *stream, void *data);
156 void *pdata;
157};
158
159
160struct sst_byt {
161 struct device *dev;
162 struct sst_dsp *dsp;
163
164
165 struct list_head stream_list;
166
167
168 wait_queue_head_t boot_wait;
169 bool boot_complete;
170 struct sst_fw *fw;
171
172
173 struct sst_generic_ipc ipc;
174};
175
176static inline u64 sst_byt_header(int msg_id, int data, bool large, int str_id)
177{
178 return IPC_HEADER_MSG_ID(msg_id) | IPC_HEADER_STR_ID(str_id) |
179 IPC_HEADER_LARGE(large) | IPC_HEADER_DATA(data) |
180 SST_BYT_IPCX_BUSY;
181}
182
183static inline u16 sst_byt_header_msg_id(u64 header)
184{
185 return header & IPC_HEADER_MSG_ID_MASK;
186}
187
188static inline u8 sst_byt_header_str_id(u64 header)
189{
190 return (header >> IPC_HEADER_STR_ID_SHIFT) & IPC_HEADER_STR_ID_MASK;
191}
192
193static inline u16 sst_byt_header_data(u64 header)
194{
195 return (header >> IPC_HEADER_DATA_SHIFT) & IPC_HEADER_DATA_MASK;
196}
197
198static struct sst_byt_stream *sst_byt_get_stream(struct sst_byt *byt,
199 int stream_id)
200{
201 struct sst_byt_stream *stream;
202
203 list_for_each_entry(stream, &byt->stream_list, node) {
204 if (stream->str_id == stream_id)
205 return stream;
206 }
207
208 return NULL;
209}
210
211static void sst_byt_stream_update(struct sst_byt *byt, struct ipc_message *msg)
212{
213 struct sst_byt_stream *stream;
214 u64 header = msg->header;
215 u8 stream_id = sst_byt_header_str_id(header);
216 u8 stream_msg = sst_byt_header_msg_id(header);
217
218 stream = sst_byt_get_stream(byt, stream_id);
219 if (stream == NULL)
220 return;
221
222 switch (stream_msg) {
223 case IPC_IA_DROP_STREAM:
224 case IPC_IA_PAUSE_STREAM:
225 case IPC_IA_FREE_STREAM:
226 stream->running = false;
227 break;
228 case IPC_IA_START_STREAM:
229 case IPC_IA_RESUME_STREAM:
230 stream->running = true;
231 break;
232 }
233}
234
235static int sst_byt_process_reply(struct sst_byt *byt, u64 header)
236{
237 struct ipc_message *msg;
238
239 msg = sst_ipc_reply_find_msg(&byt->ipc, header);
240 if (msg == NULL)
241 return 1;
242
243 if (header & IPC_HEADER_LARGE(true)) {
244 msg->rx_size = sst_byt_header_data(header);
245 sst_dsp_inbox_read(byt->dsp, msg->rx_data, msg->rx_size);
246 }
247
248
249 sst_byt_stream_update(byt, msg);
250
251 list_del(&msg->list);
252
253 sst_ipc_tx_msg_reply_complete(&byt->ipc, msg);
254
255 return 1;
256}
257
258static void sst_byt_fw_ready(struct sst_byt *byt, u64 header)
259{
260 dev_dbg(byt->dev, "ipc: DSP is ready 0x%llX\n", header);
261
262 byt->boot_complete = true;
263 wake_up(&byt->boot_wait);
264}
265
266static int sst_byt_process_notification(struct sst_byt *byt,
267 unsigned long *flags)
268{
269 struct sst_dsp *sst = byt->dsp;
270 struct sst_byt_stream *stream;
271 u64 header;
272 u8 msg_id, stream_id;
273
274 header = sst_dsp_shim_read64_unlocked(sst, SST_IPCD);
275 msg_id = sst_byt_header_msg_id(header);
276
277 switch (msg_id) {
278 case IPC_SST_PERIOD_ELAPSED:
279 stream_id = sst_byt_header_str_id(header);
280 stream = sst_byt_get_stream(byt, stream_id);
281 if (stream && stream->running && stream->notify_position) {
282 spin_unlock_irqrestore(&sst->spinlock, *flags);
283 stream->notify_position(stream, stream->pdata);
284 spin_lock_irqsave(&sst->spinlock, *flags);
285 }
286 break;
287 case IPC_IA_FW_INIT_CMPLT:
288 sst_byt_fw_ready(byt, header);
289 break;
290 }
291
292 return 1;
293}
294
295static irqreturn_t sst_byt_irq_thread(int irq, void *context)
296{
297 struct sst_dsp *sst = (struct sst_dsp *) context;
298 struct sst_byt *byt = sst_dsp_get_thread_context(sst);
299 struct sst_generic_ipc *ipc = &byt->ipc;
300 u64 header;
301 unsigned long flags;
302
303 spin_lock_irqsave(&sst->spinlock, flags);
304
305 header = sst_dsp_shim_read64_unlocked(sst, SST_IPCD);
306 if (header & SST_BYT_IPCD_BUSY) {
307 if (header & IPC_NOTIFICATION) {
308
309 sst_byt_process_notification(byt, &flags);
310 } else {
311
312 sst_byt_process_reply(byt, header);
313 }
314
315
316
317
318
319 sst_dsp_shim_update_bits64_unlocked(sst, SST_IPCD,
320 SST_BYT_IPCD_DONE | SST_BYT_IPCD_BUSY |
321 IPC_HEADER_DATA(IPC_HEADER_DATA_MASK),
322 SST_BYT_IPCD_DONE);
323
324 sst_dsp_shim_update_bits64_unlocked(sst, SST_IMRX,
325 SST_BYT_IMRX_REQUEST, 0);
326 }
327
328 spin_unlock_irqrestore(&sst->spinlock, flags);
329
330
331 schedule_work(&ipc->kwork);
332
333 return IRQ_HANDLED;
334}
335
336
337struct sst_byt_stream *sst_byt_stream_new(struct sst_byt *byt, int id,
338 u32 (*notify_position)(struct sst_byt_stream *stream, void *data),
339 void *data)
340{
341 struct sst_byt_stream *stream;
342 struct sst_dsp *sst = byt->dsp;
343 unsigned long flags;
344
345 stream = kzalloc(sizeof(*stream), GFP_KERNEL);
346 if (stream == NULL)
347 return NULL;
348
349 spin_lock_irqsave(&sst->spinlock, flags);
350 list_add(&stream->node, &byt->stream_list);
351 stream->notify_position = notify_position;
352 stream->pdata = data;
353 stream->byt = byt;
354 stream->str_id = id;
355 spin_unlock_irqrestore(&sst->spinlock, flags);
356
357 return stream;
358}
359
360int sst_byt_stream_set_bits(struct sst_byt *byt, struct sst_byt_stream *stream,
361 int bits)
362{
363 stream->request.pcm_params.pcm_wd_sz = bits;
364 return 0;
365}
366
367int sst_byt_stream_set_channels(struct sst_byt *byt,
368 struct sst_byt_stream *stream, u8 channels)
369{
370 stream->request.pcm_params.num_chan = channels;
371 return 0;
372}
373
374int sst_byt_stream_set_rate(struct sst_byt *byt, struct sst_byt_stream *stream,
375 unsigned int rate)
376{
377 stream->request.pcm_params.sfreq = rate;
378 return 0;
379}
380
381
382int sst_byt_stream_type(struct sst_byt *byt, struct sst_byt_stream *stream,
383 int codec_type, int stream_type, int operation)
384{
385 stream->request.str_type.codec_type = codec_type;
386 stream->request.str_type.str_type = stream_type;
387 stream->request.str_type.operation = operation;
388 stream->request.str_type.time_slots = 0xc;
389
390 return 0;
391}
392
393int sst_byt_stream_buffer(struct sst_byt *byt, struct sst_byt_stream *stream,
394 uint32_t buffer_addr, uint32_t buffer_size)
395{
396 stream->request.frame_info.num_entries = 1;
397 stream->request.frame_info.ring_buf_info[0].addr = buffer_addr;
398 stream->request.frame_info.ring_buf_info[0].size = buffer_size;
399
400 stream->request.frame_info.frag_size =
401 stream->request.pcm_params.sfreq *
402 stream->request.pcm_params.num_chan *
403 stream->request.pcm_params.pcm_wd_sz / 8 *
404 4 / 1000;
405 return 0;
406}
407
408int sst_byt_stream_commit(struct sst_byt *byt, struct sst_byt_stream *stream)
409{
410 struct sst_byt_alloc_params *str_req = &stream->request;
411 struct sst_byt_alloc_response *reply = &stream->reply;
412 u64 header;
413 int ret;
414
415 header = sst_byt_header(IPC_IA_ALLOC_STREAM,
416 sizeof(*str_req) + sizeof(u32),
417 true, stream->str_id);
418 ret = sst_ipc_tx_message_wait(&byt->ipc, header, str_req,
419 sizeof(*str_req),
420 reply, sizeof(*reply));
421 if (ret < 0) {
422 dev_err(byt->dev, "ipc: error stream commit failed\n");
423 return ret;
424 }
425
426 stream->commited = true;
427
428 return 0;
429}
430
431int sst_byt_stream_free(struct sst_byt *byt, struct sst_byt_stream *stream)
432{
433 u64 header;
434 int ret = 0;
435 struct sst_dsp *sst = byt->dsp;
436 unsigned long flags;
437
438 if (!stream->commited)
439 goto out;
440
441 header = sst_byt_header(IPC_IA_FREE_STREAM, 0, false, stream->str_id);
442 ret = sst_ipc_tx_message_wait(&byt->ipc, header, NULL, 0, NULL, 0);
443 if (ret < 0) {
444 dev_err(byt->dev, "ipc: free stream %d failed\n",
445 stream->str_id);
446 return -EAGAIN;
447 }
448
449 stream->commited = false;
450out:
451 spin_lock_irqsave(&sst->spinlock, flags);
452 list_del(&stream->node);
453 kfree(stream);
454 spin_unlock_irqrestore(&sst->spinlock, flags);
455
456 return ret;
457}
458
459static int sst_byt_stream_operations(struct sst_byt *byt, int type,
460 int stream_id, int wait)
461{
462 u64 header;
463
464 header = sst_byt_header(type, 0, false, stream_id);
465 if (wait)
466 return sst_ipc_tx_message_wait(&byt->ipc, header, NULL,
467 0, NULL, 0);
468 else
469 return sst_ipc_tx_message_nowait(&byt->ipc, header,
470 NULL, 0);
471}
472
473
474int sst_byt_stream_start(struct sst_byt *byt, struct sst_byt_stream *stream,
475 u32 start_offset)
476{
477 struct sst_byt_start_stream_params start_stream;
478 void *tx_msg;
479 size_t size;
480 u64 header;
481 int ret;
482
483 start_stream.byte_offset = start_offset;
484 header = sst_byt_header(IPC_IA_START_STREAM,
485 sizeof(start_stream) + sizeof(u32),
486 true, stream->str_id);
487 tx_msg = &start_stream;
488 size = sizeof(start_stream);
489
490 ret = sst_ipc_tx_message_nowait(&byt->ipc, header, tx_msg, size);
491 if (ret < 0)
492 dev_err(byt->dev, "ipc: error failed to start stream %d\n",
493 stream->str_id);
494
495 return ret;
496}
497
498int sst_byt_stream_stop(struct sst_byt *byt, struct sst_byt_stream *stream)
499{
500 int ret;
501
502
503 if (!stream->commited)
504 return 0;
505
506 ret = sst_byt_stream_operations(byt, IPC_IA_DROP_STREAM,
507 stream->str_id, 0);
508 if (ret < 0)
509 dev_err(byt->dev, "ipc: error failed to stop stream %d\n",
510 stream->str_id);
511 return ret;
512}
513
514int sst_byt_stream_pause(struct sst_byt *byt, struct sst_byt_stream *stream)
515{
516 int ret;
517
518 ret = sst_byt_stream_operations(byt, IPC_IA_PAUSE_STREAM,
519 stream->str_id, 0);
520 if (ret < 0)
521 dev_err(byt->dev, "ipc: error failed to pause stream %d\n",
522 stream->str_id);
523
524 return ret;
525}
526
527int sst_byt_stream_resume(struct sst_byt *byt, struct sst_byt_stream *stream)
528{
529 int ret;
530
531 ret = sst_byt_stream_operations(byt, IPC_IA_RESUME_STREAM,
532 stream->str_id, 0);
533 if (ret < 0)
534 dev_err(byt->dev, "ipc: error failed to resume stream %d\n",
535 stream->str_id);
536
537 return ret;
538}
539
540int sst_byt_get_dsp_position(struct sst_byt *byt,
541 struct sst_byt_stream *stream, int buffer_size)
542{
543 struct sst_dsp *sst = byt->dsp;
544 struct sst_byt_tstamp fw_tstamp;
545 u8 str_id = stream->str_id;
546 u32 tstamp_offset;
547
548 tstamp_offset = SST_BYT_TIMESTAMP_OFFSET + str_id * sizeof(fw_tstamp);
549 memcpy_fromio(&fw_tstamp,
550 sst->addr.lpe + tstamp_offset, sizeof(fw_tstamp));
551
552 return do_div(fw_tstamp.ring_buffer_counter, buffer_size);
553}
554
555struct sst_dsp *sst_byt_get_dsp(struct sst_byt *byt)
556{
557 return byt->dsp;
558}
559
560static struct sst_dsp_device byt_dev = {
561 .thread = sst_byt_irq_thread,
562 .ops = &sst_byt_ops,
563};
564
565int sst_byt_dsp_suspend_late(struct device *dev, struct sst_pdata *pdata)
566{
567 struct sst_byt *byt = pdata->dsp;
568
569 dev_dbg(byt->dev, "dsp reset\n");
570 sst_dsp_reset(byt->dsp);
571 sst_ipc_drop_all(&byt->ipc);
572 dev_dbg(byt->dev, "dsp in reset\n");
573
574 dev_dbg(byt->dev, "free all blocks and unload fw\n");
575 sst_fw_unload(byt->fw);
576
577 return 0;
578}
579EXPORT_SYMBOL_GPL(sst_byt_dsp_suspend_late);
580
581int sst_byt_dsp_boot(struct device *dev, struct sst_pdata *pdata)
582{
583 struct sst_byt *byt = pdata->dsp;
584 int ret;
585
586 dev_dbg(byt->dev, "reload dsp fw\n");
587
588 sst_dsp_reset(byt->dsp);
589
590 ret = sst_fw_reload(byt->fw);
591 if (ret < 0) {
592 dev_err(dev, "error: failed to reload firmware\n");
593 return ret;
594 }
595
596
597 byt->boot_complete = false;
598 sst_dsp_boot(byt->dsp);
599 dev_dbg(byt->dev, "dsp booting...\n");
600
601 return 0;
602}
603EXPORT_SYMBOL_GPL(sst_byt_dsp_boot);
604
605int sst_byt_dsp_wait_for_ready(struct device *dev, struct sst_pdata *pdata)
606{
607 struct sst_byt *byt = pdata->dsp;
608 int err;
609
610 dev_dbg(byt->dev, "wait for dsp reboot\n");
611
612 err = wait_event_timeout(byt->boot_wait, byt->boot_complete,
613 msecs_to_jiffies(IPC_BOOT_MSECS));
614 if (err == 0) {
615 dev_err(byt->dev, "ipc: error DSP boot timeout\n");
616 return -EIO;
617 }
618
619 dev_dbg(byt->dev, "dsp rebooted\n");
620 return 0;
621}
622EXPORT_SYMBOL_GPL(sst_byt_dsp_wait_for_ready);
623
624static void byt_tx_msg(struct sst_generic_ipc *ipc, struct ipc_message *msg)
625{
626 if (msg->header & IPC_HEADER_LARGE(true))
627 sst_dsp_outbox_write(ipc->dsp, msg->tx_data, msg->tx_size);
628
629 sst_dsp_shim_write64_unlocked(ipc->dsp, SST_IPCX, msg->header);
630}
631
632static void byt_shim_dbg(struct sst_generic_ipc *ipc, const char *text)
633{
634 struct sst_dsp *sst = ipc->dsp;
635 u64 isr, ipcd, imrx, ipcx;
636
637 ipcx = sst_dsp_shim_read64_unlocked(sst, SST_IPCX);
638 isr = sst_dsp_shim_read64_unlocked(sst, SST_ISRX);
639 ipcd = sst_dsp_shim_read64_unlocked(sst, SST_IPCD);
640 imrx = sst_dsp_shim_read64_unlocked(sst, SST_IMRX);
641
642 dev_err(ipc->dev,
643 "ipc: --%s-- ipcx 0x%llx isr 0x%llx ipcd 0x%llx imrx 0x%llx\n",
644 text, ipcx, isr, ipcd, imrx);
645}
646
647static void byt_tx_data_copy(struct ipc_message *msg, char *tx_data,
648 size_t tx_size)
649{
650
651 *(u32 *)msg->tx_data = (u32)(msg->header & (u32)-1);
652 memcpy(msg->tx_data + sizeof(u32), tx_data, tx_size);
653 msg->tx_size += sizeof(u32);
654}
655
656static u64 byt_reply_msg_match(u64 header, u64 *mask)
657{
658
659 *mask = IPC_HEADER_MSG_ID_MASK |
660 IPC_HEADER_STR_ID_MASK << IPC_HEADER_STR_ID_SHIFT;
661 header &= *mask;
662
663 return header;
664}
665
666static bool byt_is_dsp_busy(struct sst_dsp *dsp)
667{
668 u64 ipcx;
669
670 ipcx = sst_dsp_shim_read_unlocked(dsp, SST_IPCX);
671 return (ipcx & (SST_IPCX_BUSY | SST_IPCX_DONE));
672}
673
674int sst_byt_dsp_init(struct device *dev, struct sst_pdata *pdata)
675{
676 struct sst_byt *byt;
677 struct sst_generic_ipc *ipc;
678 struct sst_fw *byt_sst_fw;
679 struct sst_byt_fw_init init;
680 int err;
681
682 dev_dbg(dev, "initialising Byt DSP IPC\n");
683
684 byt = devm_kzalloc(dev, sizeof(*byt), GFP_KERNEL);
685 if (byt == NULL)
686 return -ENOMEM;
687
688 byt->dev = dev;
689
690 ipc = &byt->ipc;
691 ipc->dev = dev;
692 ipc->ops.tx_msg = byt_tx_msg;
693 ipc->ops.shim_dbg = byt_shim_dbg;
694 ipc->ops.tx_data_copy = byt_tx_data_copy;
695 ipc->ops.reply_msg_match = byt_reply_msg_match;
696 ipc->ops.is_dsp_busy = byt_is_dsp_busy;
697 ipc->tx_data_max_size = IPC_MAX_MAILBOX_BYTES;
698 ipc->rx_data_max_size = IPC_MAX_MAILBOX_BYTES;
699
700 err = sst_ipc_init(ipc);
701 if (err != 0)
702 goto ipc_init_err;
703
704 INIT_LIST_HEAD(&byt->stream_list);
705 init_waitqueue_head(&byt->boot_wait);
706 byt_dev.thread_context = byt;
707
708
709 byt->dsp = sst_dsp_new(dev, &byt_dev, pdata);
710 if (byt->dsp == NULL) {
711 err = -ENODEV;
712 goto dsp_new_err;
713 }
714
715 ipc->dsp = byt->dsp;
716
717
718 sst_dsp_reset(byt->dsp);
719
720 byt_sst_fw = sst_fw_new(byt->dsp, pdata->fw, byt);
721 if (byt_sst_fw == NULL) {
722 err = -ENODEV;
723 dev_err(dev, "error: failed to load firmware\n");
724 goto fw_err;
725 }
726
727
728 sst_dsp_boot(byt->dsp);
729 err = wait_event_timeout(byt->boot_wait, byt->boot_complete,
730 msecs_to_jiffies(IPC_BOOT_MSECS));
731 if (err == 0) {
732 err = -EIO;
733 dev_err(byt->dev, "ipc: error DSP boot timeout\n");
734 goto boot_err;
735 }
736
737
738 sst_dsp_inbox_read(byt->dsp, &init, sizeof(init));
739 dev_info(byt->dev, "FW version: %02x.%02x.%02x.%02x\n",
740 init.fw_version.major, init.fw_version.minor,
741 init.fw_version.build, init.fw_version.type);
742 dev_info(byt->dev, "Build type: %x\n", init.fw_version.type);
743 dev_info(byt->dev, "Build date: %s %s\n",
744 init.build_info.date, init.build_info.time);
745
746 pdata->dsp = byt;
747 byt->fw = byt_sst_fw;
748
749 return 0;
750
751boot_err:
752 sst_dsp_reset(byt->dsp);
753 sst_fw_free(byt_sst_fw);
754fw_err:
755 sst_dsp_free(byt->dsp);
756dsp_new_err:
757 sst_ipc_fini(ipc);
758ipc_init_err:
759
760 return err;
761}
762EXPORT_SYMBOL_GPL(sst_byt_dsp_init);
763
764void sst_byt_dsp_free(struct device *dev, struct sst_pdata *pdata)
765{
766 struct sst_byt *byt = pdata->dsp;
767
768 sst_dsp_reset(byt->dsp);
769 sst_fw_free_all(byt->dsp);
770 sst_dsp_free(byt->dsp);
771 sst_ipc_fini(&byt->ipc);
772}
773EXPORT_SYMBOL_GPL(sst_byt_dsp_free);
774
