1 /*
2 * Intel SST Haswell/Broadwell PCM Support
3 *
4 * Copyright (C) 2013, Intel Corporation. All rights reserved.
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License version
8 * 2 as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 */
16
17 #include <linux/module.h>
18 #include <linux/dma-mapping.h>
19 #include <linux/slab.h>
20 #include <linux/delay.h>
21 #include <linux/pm_runtime.h>
22 #include <asm/page.h>
23 #include <asm/pgtable.h>
24 #include <sound/core.h>
25 #include <sound/pcm.h>
26 #include <sound/pcm_params.h>
27 #include <sound/dmaengine_pcm.h>
28 #include <sound/soc.h>
29 #include <sound/tlv.h>
30 #include <sound/compress_driver.h>
31
32 #include "../haswell/sst-haswell-ipc.h"
33 #include "../common/sst-dsp-priv.h"
34 #include "../common/sst-dsp.h"
35
36 #define HSW_PCM_COUNT 6
37 #define HSW_VOLUME_MAX 0x7FFFFFFF /* 0dB */
38
39 #define SST_OLD_POSITION(d, r, o) ((d) + \
40 frames_to_bytes(r, o))
41 #define SST_SAMPLES(r, x) (bytes_to_samples(r, \
42 frames_to_bytes(r, (x))))
43
44 /* simple volume table */
45 static const u32 volume_map[] = {
46 HSW_VOLUME_MAX >> 30,
47 HSW_VOLUME_MAX >> 29,
48 HSW_VOLUME_MAX >> 28,
49 HSW_VOLUME_MAX >> 27,
50 HSW_VOLUME_MAX >> 26,
51 HSW_VOLUME_MAX >> 25,
52 HSW_VOLUME_MAX >> 24,
53 HSW_VOLUME_MAX >> 23,
54 HSW_VOLUME_MAX >> 22,
55 HSW_VOLUME_MAX >> 21,
56 HSW_VOLUME_MAX >> 20,
57 HSW_VOLUME_MAX >> 19,
58 HSW_VOLUME_MAX >> 18,
59 HSW_VOLUME_MAX >> 17,
60 HSW_VOLUME_MAX >> 16,
61 HSW_VOLUME_MAX >> 15,
62 HSW_VOLUME_MAX >> 14,
63 HSW_VOLUME_MAX >> 13,
64 HSW_VOLUME_MAX >> 12,
65 HSW_VOLUME_MAX >> 11,
66 HSW_VOLUME_MAX >> 10,
67 HSW_VOLUME_MAX >> 9,
68 HSW_VOLUME_MAX >> 8,
69 HSW_VOLUME_MAX >> 7,
70 HSW_VOLUME_MAX >> 6,
71 HSW_VOLUME_MAX >> 5,
72 HSW_VOLUME_MAX >> 4,
73 HSW_VOLUME_MAX >> 3,
74 HSW_VOLUME_MAX >> 2,
75 HSW_VOLUME_MAX >> 1,
76 HSW_VOLUME_MAX >> 0,
77 };
78
79 #define HSW_PCM_PERIODS_MAX 64
80 #define HSW_PCM_PERIODS_MIN 2
81
82 #define HSW_PCM_DAI_ID_SYSTEM 0
83 #define HSW_PCM_DAI_ID_OFFLOAD0 1
84 #define HSW_PCM_DAI_ID_OFFLOAD1 2
85 #define HSW_PCM_DAI_ID_LOOPBACK 3
86
87
88 static const struct snd_pcm_hardware hsw_pcm_hardware = {
89 .info = SNDRV_PCM_INFO_MMAP |
90 SNDRV_PCM_INFO_MMAP_VALID |
91 SNDRV_PCM_INFO_INTERLEAVED |
92 SNDRV_PCM_INFO_PAUSE |
93 SNDRV_PCM_INFO_RESUME |
94 SNDRV_PCM_INFO_NO_PERIOD_WAKEUP |
95 SNDRV_PCM_INFO_DRAIN_TRIGGER,
96 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE |
97 SNDRV_PCM_FMTBIT_S32_LE,
98 .period_bytes_min = PAGE_SIZE,
99 .period_bytes_max = (HSW_PCM_PERIODS_MAX / HSW_PCM_PERIODS_MIN) * PAGE_SIZE,
100 .periods_min = HSW_PCM_PERIODS_MIN,
101 .periods_max = HSW_PCM_PERIODS_MAX,
102 .buffer_bytes_max = HSW_PCM_PERIODS_MAX * PAGE_SIZE,
103 };
104
105 struct hsw_pcm_module_map {
106 int dai_id;
107 int stream;
108 enum sst_hsw_module_id mod_id;
109 };
110
111 /* private data for each PCM DSP stream */
112 struct hsw_pcm_data {
113 int dai_id;
114 struct sst_hsw_stream *stream;
115 struct sst_module_runtime *runtime;
116 struct sst_module_runtime_context context;
117 struct snd_pcm *hsw_pcm;
118 u32 volume[2];
119 struct snd_pcm_substream *substream;
120 struct snd_compr_stream *cstream;
121 unsigned int wpos;
122 struct mutex mutex;
123 bool allocated;
124 int persistent_offset;
125 };
126
127 enum hsw_pm_state {
128 HSW_PM_STATE_D0 = 0,
129 HSW_PM_STATE_RTD3 = 1,
130 HSW_PM_STATE_D3 = 2,
131 };
132
133 /* private data for the driver */
134 struct hsw_priv_data {
135 /* runtime DSP */
136 struct sst_hsw *hsw;
137 struct device *dev;
138 enum hsw_pm_state pm_state;
139 struct snd_soc_card *soc_card;
140 struct sst_module_runtime *runtime_waves; /* sound effect module */
141
142 /* page tables */
143 struct snd_dma_buffer dmab[HSW_PCM_COUNT][2];
144
145 /* DAI data */
146 struct hsw_pcm_data pcm[HSW_PCM_COUNT][2];
147 };
148
149
150 /* static mappings between PCMs and modules - may be dynamic in future */
151 static struct hsw_pcm_module_map mod_map[] = {
152 {HSW_PCM_DAI_ID_SYSTEM, 0, SST_HSW_MODULE_PCM_SYSTEM},
153 {HSW_PCM_DAI_ID_OFFLOAD0, 0, SST_HSW_MODULE_PCM},
154 {HSW_PCM_DAI_ID_OFFLOAD1, 0, SST_HSW_MODULE_PCM},
155 {HSW_PCM_DAI_ID_LOOPBACK, 1, SST_HSW_MODULE_PCM_REFERENCE},
156 {HSW_PCM_DAI_ID_SYSTEM, 1, SST_HSW_MODULE_PCM_CAPTURE},
157 };
158
159 static u32 hsw_notify_pointer(struct sst_hsw_stream *stream, void *data);
160
hsw_mixer_to_ipc(unsigned int value)161 static inline u32 hsw_mixer_to_ipc(unsigned int value)
162 {
163 if (value >= ARRAY_SIZE(volume_map))
164 return volume_map[0];
165 else
166 return volume_map[value];
167 }
168
hsw_ipc_to_mixer(u32 value)169 static inline unsigned int hsw_ipc_to_mixer(u32 value)
170 {
171 int i;
172
173 for (i = 0; i < ARRAY_SIZE(volume_map); i++) {
174 if (volume_map[i] >= value)
175 return i;
176 }
177
178 return i - 1;
179 }
180
hsw_stream_volume_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)181 static int hsw_stream_volume_put(struct snd_kcontrol *kcontrol,
182 struct snd_ctl_elem_value *ucontrol)
183 {
184 struct snd_soc_platform *platform = snd_soc_kcontrol_platform(kcontrol);
185 struct soc_mixer_control *mc =
186 (struct soc_mixer_control *)kcontrol->private_value;
187 struct hsw_priv_data *pdata =
188 snd_soc_platform_get_drvdata(platform);
189 struct hsw_pcm_data *pcm_data;
190 struct sst_hsw *hsw = pdata->hsw;
191 u32 volume;
192 int dai, stream;
193
194 dai = mod_map[mc->reg].dai_id;
195 stream = mod_map[mc->reg].stream;
196 pcm_data = &pdata->pcm[dai][stream];
197
198 mutex_lock(&pcm_data->mutex);
199 pm_runtime_get_sync(pdata->dev);
200
201 if (!pcm_data->stream) {
202 pcm_data->volume[0] =
203 hsw_mixer_to_ipc(ucontrol->value.integer.value[0]);
204 pcm_data->volume[1] =
205 hsw_mixer_to_ipc(ucontrol->value.integer.value[1]);
206 pm_runtime_mark_last_busy(pdata->dev);
207 pm_runtime_put_autosuspend(pdata->dev);
208 mutex_unlock(&pcm_data->mutex);
209 return 0;
210 }
211
212 if (ucontrol->value.integer.value[0] ==
213 ucontrol->value.integer.value[1]) {
214 volume = hsw_mixer_to_ipc(ucontrol->value.integer.value[0]);
215 /* apply volume value to all channels */
216 sst_hsw_stream_set_volume(hsw, pcm_data->stream, 0, SST_HSW_CHANNELS_ALL, volume);
217 } else {
218 volume = hsw_mixer_to_ipc(ucontrol->value.integer.value[0]);
219 sst_hsw_stream_set_volume(hsw, pcm_data->stream, 0, 0, volume);
220 volume = hsw_mixer_to_ipc(ucontrol->value.integer.value[1]);
221 sst_hsw_stream_set_volume(hsw, pcm_data->stream, 0, 1, volume);
222 }
223
224 pm_runtime_mark_last_busy(pdata->dev);
225 pm_runtime_put_autosuspend(pdata->dev);
226 mutex_unlock(&pcm_data->mutex);
227 return 0;
228 }
229
hsw_stream_volume_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)230 static int hsw_stream_volume_get(struct snd_kcontrol *kcontrol,
231 struct snd_ctl_elem_value *ucontrol)
232 {
233 struct snd_soc_platform *platform = snd_soc_kcontrol_platform(kcontrol);
234 struct soc_mixer_control *mc =
235 (struct soc_mixer_control *)kcontrol->private_value;
236 struct hsw_priv_data *pdata =
237 snd_soc_platform_get_drvdata(platform);
238 struct hsw_pcm_data *pcm_data;
239 struct sst_hsw *hsw = pdata->hsw;
240 u32 volume;
241 int dai, stream;
242
243 dai = mod_map[mc->reg].dai_id;
244 stream = mod_map[mc->reg].stream;
245 pcm_data = &pdata->pcm[dai][stream];
246
247 mutex_lock(&pcm_data->mutex);
248 pm_runtime_get_sync(pdata->dev);
249
250 if (!pcm_data->stream) {
251 ucontrol->value.integer.value[0] =
252 hsw_ipc_to_mixer(pcm_data->volume[0]);
253 ucontrol->value.integer.value[1] =
254 hsw_ipc_to_mixer(pcm_data->volume[1]);
255 pm_runtime_mark_last_busy(pdata->dev);
256 pm_runtime_put_autosuspend(pdata->dev);
257 mutex_unlock(&pcm_data->mutex);
258 return 0;
259 }
260
261 sst_hsw_stream_get_volume(hsw, pcm_data->stream, 0, 0, &volume);
262 ucontrol->value.integer.value[0] = hsw_ipc_to_mixer(volume);
263 sst_hsw_stream_get_volume(hsw, pcm_data->stream, 0, 1, &volume);
264 ucontrol->value.integer.value[1] = hsw_ipc_to_mixer(volume);
265
266 pm_runtime_mark_last_busy(pdata->dev);
267 pm_runtime_put_autosuspend(pdata->dev);
268 mutex_unlock(&pcm_data->mutex);
269
270 return 0;
271 }
272
hsw_volume_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)273 static int hsw_volume_put(struct snd_kcontrol *kcontrol,
274 struct snd_ctl_elem_value *ucontrol)
275 {
276 struct snd_soc_platform *platform = snd_soc_kcontrol_platform(kcontrol);
277 struct hsw_priv_data *pdata = snd_soc_platform_get_drvdata(platform);
278 struct sst_hsw *hsw = pdata->hsw;
279 u32 volume;
280
281 pm_runtime_get_sync(pdata->dev);
282
283 if (ucontrol->value.integer.value[0] ==
284 ucontrol->value.integer.value[1]) {
285
286 volume = hsw_mixer_to_ipc(ucontrol->value.integer.value[0]);
287 sst_hsw_mixer_set_volume(hsw, 0, SST_HSW_CHANNELS_ALL, volume);
288
289 } else {
290 volume = hsw_mixer_to_ipc(ucontrol->value.integer.value[0]);
291 sst_hsw_mixer_set_volume(hsw, 0, 0, volume);
292
293 volume = hsw_mixer_to_ipc(ucontrol->value.integer.value[1]);
294 sst_hsw_mixer_set_volume(hsw, 0, 1, volume);
295 }
296
297 pm_runtime_mark_last_busy(pdata->dev);
298 pm_runtime_put_autosuspend(pdata->dev);
299 return 0;
300 }
301
hsw_volume_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)302 static int hsw_volume_get(struct snd_kcontrol *kcontrol,
303 struct snd_ctl_elem_value *ucontrol)
304 {
305 struct snd_soc_platform *platform = snd_soc_kcontrol_platform(kcontrol);
306 struct hsw_priv_data *pdata = snd_soc_platform_get_drvdata(platform);
307 struct sst_hsw *hsw = pdata->hsw;
308 unsigned int volume = 0;
309
310 pm_runtime_get_sync(pdata->dev);
311 sst_hsw_mixer_get_volume(hsw, 0, 0, &volume);
312 ucontrol->value.integer.value[0] = hsw_ipc_to_mixer(volume);
313
314 sst_hsw_mixer_get_volume(hsw, 0, 1, &volume);
315 ucontrol->value.integer.value[1] = hsw_ipc_to_mixer(volume);
316
317 pm_runtime_mark_last_busy(pdata->dev);
318 pm_runtime_put_autosuspend(pdata->dev);
319 return 0;
320 }
321
hsw_waves_switch_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)322 static int hsw_waves_switch_get(struct snd_kcontrol *kcontrol,
323 struct snd_ctl_elem_value *ucontrol)
324 {
325 struct snd_soc_platform *platform = snd_soc_kcontrol_platform(kcontrol);
326 struct hsw_priv_data *pdata = snd_soc_platform_get_drvdata(platform);
327 struct sst_hsw *hsw = pdata->hsw;
328 enum sst_hsw_module_id id = SST_HSW_MODULE_WAVES;
329
330 ucontrol->value.integer.value[0] =
331 (sst_hsw_is_module_active(hsw, id) ||
332 sst_hsw_is_module_enabled_rtd3(hsw, id));
333 return 0;
334 }
335
hsw_waves_switch_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)336 static int hsw_waves_switch_put(struct snd_kcontrol *kcontrol,
337 struct snd_ctl_elem_value *ucontrol)
338 {
339 struct snd_soc_platform *platform = snd_soc_kcontrol_platform(kcontrol);
340 struct hsw_priv_data *pdata = snd_soc_platform_get_drvdata(platform);
341 struct sst_hsw *hsw = pdata->hsw;
342 int ret = 0;
343 enum sst_hsw_module_id id = SST_HSW_MODULE_WAVES;
344 bool switch_on = (bool)ucontrol->value.integer.value[0];
345
346 /* if module is in RAM on the DSP, apply user settings to module through
347 * ipc. If module is not in RAM on the DSP, store user setting for
348 * track */
349 if (sst_hsw_is_module_loaded(hsw, id)) {
350 if (switch_on == sst_hsw_is_module_active(hsw, id))
351 return 0;
352
353 if (switch_on)
354 ret = sst_hsw_module_enable(hsw, id, 0);
355 else
356 ret = sst_hsw_module_disable(hsw, id, 0);
357 } else {
358 if (switch_on == sst_hsw_is_module_enabled_rtd3(hsw, id))
359 return 0;
360
361 if (switch_on)
362 sst_hsw_set_module_enabled_rtd3(hsw, id);
363 else
364 sst_hsw_set_module_disabled_rtd3(hsw, id);
365 }
366
367 return ret;
368 }
369
hsw_waves_param_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)370 static int hsw_waves_param_get(struct snd_kcontrol *kcontrol,
371 struct snd_ctl_elem_value *ucontrol)
372 {
373 struct snd_soc_platform *platform = snd_soc_kcontrol_platform(kcontrol);
374 struct hsw_priv_data *pdata = snd_soc_platform_get_drvdata(platform);
375 struct sst_hsw *hsw = pdata->hsw;
376
377 /* return a matching line from param buffer */
378 return sst_hsw_load_param_line(hsw, ucontrol->value.bytes.data);
379 }
380
hsw_waves_param_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)381 static int hsw_waves_param_put(struct snd_kcontrol *kcontrol,
382 struct snd_ctl_elem_value *ucontrol)
383 {
384 struct snd_soc_platform *platform = snd_soc_kcontrol_platform(kcontrol);
385 struct hsw_priv_data *pdata = snd_soc_platform_get_drvdata(platform);
386 struct sst_hsw *hsw = pdata->hsw;
387 int ret;
388 enum sst_hsw_module_id id = SST_HSW_MODULE_WAVES;
389 int param_id = ucontrol->value.bytes.data[0];
390 int param_size = WAVES_PARAM_COUNT;
391
392 /* clear param buffer and reset buffer index */
393 if (param_id == 0xFF) {
394 sst_hsw_reset_param_buf(hsw);
395 return 0;
396 }
397
398 /* store params into buffer */
399 ret = sst_hsw_store_param_line(hsw, ucontrol->value.bytes.data);
400 if (ret < 0)
401 return ret;
402
403 if (sst_hsw_is_module_active(hsw, id))
404 ret = sst_hsw_module_set_param(hsw, id, 0, param_id,
405 param_size, ucontrol->value.bytes.data);
406 return ret;
407 }
408
409 /* TLV used by both global and stream volumes */
410 static const DECLARE_TLV_DB_SCALE(hsw_vol_tlv, -9000, 300, 1);
411
412 /* System Pin has no volume control */
413 static const struct snd_kcontrol_new hsw_volume_controls[] = {
414 /* Global DSP volume */
415 SOC_DOUBLE_EXT_TLV("Master Playback Volume", 0, 0, 8,
416 ARRAY_SIZE(volume_map) - 1, 0,
417 hsw_volume_get, hsw_volume_put, hsw_vol_tlv),
418 /* Offload 0 volume */
419 SOC_DOUBLE_EXT_TLV("Media0 Playback Volume", 1, 0, 8,
420 ARRAY_SIZE(volume_map) - 1, 0,
421 hsw_stream_volume_get, hsw_stream_volume_put, hsw_vol_tlv),
422 /* Offload 1 volume */
423 SOC_DOUBLE_EXT_TLV("Media1 Playback Volume", 2, 0, 8,
424 ARRAY_SIZE(volume_map) - 1, 0,
425 hsw_stream_volume_get, hsw_stream_volume_put, hsw_vol_tlv),
426 /* Mic Capture volume */
427 SOC_DOUBLE_EXT_TLV("Mic Capture Volume", 4, 0, 8,
428 ARRAY_SIZE(volume_map) - 1, 0,
429 hsw_stream_volume_get, hsw_stream_volume_put, hsw_vol_tlv),
430 /* enable/disable module waves */
431 SOC_SINGLE_BOOL_EXT("Waves Switch", 0,
432 hsw_waves_switch_get, hsw_waves_switch_put),
433 /* set parameters to module waves */
434 SND_SOC_BYTES_EXT("Waves Set Param", WAVES_PARAM_COUNT,
435 hsw_waves_param_get, hsw_waves_param_put),
436 };
437
438 /* Create DMA buffer page table for DSP */
create_adsp_page_table(struct snd_pcm_substream * substream,struct hsw_priv_data * pdata,struct snd_soc_pcm_runtime * rtd,unsigned char * dma_area,size_t size,int pcm)439 static int create_adsp_page_table(struct snd_pcm_substream *substream,
440 struct hsw_priv_data *pdata, struct snd_soc_pcm_runtime *rtd,
441 unsigned char *dma_area, size_t size, int pcm)
442 {
443 struct snd_dma_buffer *dmab = snd_pcm_get_dma_buf(substream);
444 int i, pages, stream = substream->stream;
445
446 pages = snd_sgbuf_aligned_pages(size);
447
448 dev_dbg(rtd->dev, "generating page table for %p size 0x%zu pages %d\n",
449 dma_area, size, pages);
450
451 for (i = 0; i < pages; i++) {
452 u32 idx = (((i << 2) + i)) >> 1;
453 u32 pfn = snd_sgbuf_get_addr(dmab, i * PAGE_SIZE) >> PAGE_SHIFT;
454 u32 *pg_table;
455
456 dev_dbg(rtd->dev, "pfn i %i idx %d pfn %x\n", i, idx, pfn);
457
458 pg_table = (u32 *)(pdata->dmab[pcm][stream].area + idx);
459
460 if (i & 1)
461 *pg_table |= (pfn << 4);
462 else
463 *pg_table |= pfn;
464 }
465
466 return 0;
467 }
468
469 /* this may get called several times by oss emulation */
hsw_pcm_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)470 static int hsw_pcm_hw_params(struct snd_pcm_substream *substream,
471 struct snd_pcm_hw_params *params)
472 {
473 struct snd_soc_pcm_runtime *rtd = substream->private_data;
474 struct snd_pcm_runtime *runtime = substream->runtime;
475 struct hsw_priv_data *pdata =
476 snd_soc_platform_get_drvdata(rtd->platform);
477 struct hsw_pcm_data *pcm_data;
478 struct sst_hsw *hsw = pdata->hsw;
479 struct sst_module *module_data;
480 struct sst_dsp *dsp;
481 struct snd_dma_buffer *dmab;
482 enum sst_hsw_stream_type stream_type;
483 enum sst_hsw_stream_path_id path_id;
484 u32 rate, bits, map, pages, module_id;
485 u8 channels;
486 int ret, dai;
487
488 dai = mod_map[rtd->cpu_dai->id].dai_id;
489 pcm_data = &pdata->pcm[dai][substream->stream];
490
491 /* check if we are being called a subsequent time */
492 if (pcm_data->allocated) {
493 ret = sst_hsw_stream_reset(hsw, pcm_data->stream);
494 if (ret < 0)
495 dev_dbg(rtd->dev, "error: reset stream failed %d\n",
496 ret);
497
498 ret = sst_hsw_stream_free(hsw, pcm_data->stream);
499 if (ret < 0) {
500 dev_dbg(rtd->dev, "error: free stream failed %d\n",
501 ret);
502 return ret;
503 }
504 pcm_data->allocated = false;
505
506 pcm_data->stream = sst_hsw_stream_new(hsw, rtd->cpu_dai->id,
507 hsw_notify_pointer, pcm_data);
508 if (pcm_data->stream == NULL) {
509 dev_err(rtd->dev, "error: failed to create stream\n");
510 return -EINVAL;
511 }
512 }
513
514 /* stream direction */
515 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
516 path_id = SST_HSW_STREAM_PATH_SSP0_OUT;
517 else
518 path_id = SST_HSW_STREAM_PATH_SSP0_IN;
519
520 /* DSP stream type depends on DAI ID */
521 switch (rtd->cpu_dai->id) {
522 case 0:
523 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
524 stream_type = SST_HSW_STREAM_TYPE_SYSTEM;
525 module_id = SST_HSW_MODULE_PCM_SYSTEM;
526 }
527 else {
528 stream_type = SST_HSW_STREAM_TYPE_CAPTURE;
529 module_id = SST_HSW_MODULE_PCM_CAPTURE;
530 }
531 break;
532 case 1:
533 case 2:
534 stream_type = SST_HSW_STREAM_TYPE_RENDER;
535 module_id = SST_HSW_MODULE_PCM;
536 break;
537 case 3:
538 /* path ID needs to be OUT for loopback */
539 stream_type = SST_HSW_STREAM_TYPE_LOOPBACK;
540 path_id = SST_HSW_STREAM_PATH_SSP0_OUT;
541 module_id = SST_HSW_MODULE_PCM_REFERENCE;
542 break;
543 default:
544 dev_err(rtd->dev, "error: invalid DAI ID %d\n",
545 rtd->cpu_dai->id);
546 return -EINVAL;
547 };
548
549 ret = sst_hsw_stream_format(hsw, pcm_data->stream,
550 path_id, stream_type, SST_HSW_STREAM_FORMAT_PCM_FORMAT);
551 if (ret < 0) {
552 dev_err(rtd->dev, "error: failed to set format %d\n", ret);
553 return ret;
554 }
555
556 rate = params_rate(params);
557 ret = sst_hsw_stream_set_rate(hsw, pcm_data->stream, rate);
558 if (ret < 0) {
559 dev_err(rtd->dev, "error: could not set rate %d\n", rate);
560 return ret;
561 }
562
563 switch (params_format(params)) {
564 case SNDRV_PCM_FORMAT_S16_LE:
565 bits = SST_HSW_DEPTH_16BIT;
566 sst_hsw_stream_set_valid(hsw, pcm_data->stream, 16);
567 break;
568 case SNDRV_PCM_FORMAT_S24_LE:
569 bits = SST_HSW_DEPTH_32BIT;
570 sst_hsw_stream_set_valid(hsw, pcm_data->stream, 24);
571 break;
572 case SNDRV_PCM_FORMAT_S8:
573 bits = SST_HSW_DEPTH_8BIT;
574 sst_hsw_stream_set_valid(hsw, pcm_data->stream, 8);
575 break;
576 case SNDRV_PCM_FORMAT_S32_LE:
577 bits = SST_HSW_DEPTH_32BIT;
578 sst_hsw_stream_set_valid(hsw, pcm_data->stream, 32);
579 break;
580 default:
581 dev_err(rtd->dev, "error: invalid format %d\n",
582 params_format(params));
583 return -EINVAL;
584 }
585
586 ret = sst_hsw_stream_set_bits(hsw, pcm_data->stream, bits);
587 if (ret < 0) {
588 dev_err(rtd->dev, "error: could not set bits %d\n", bits);
589 return ret;
590 }
591
592 channels = params_channels(params);
593 map = create_channel_map(SST_HSW_CHANNEL_CONFIG_STEREO);
594 sst_hsw_stream_set_map_config(hsw, pcm_data->stream,
595 map, SST_HSW_CHANNEL_CONFIG_STEREO);
596
597 ret = sst_hsw_stream_set_channels(hsw, pcm_data->stream, channels);
598 if (ret < 0) {
599 dev_err(rtd->dev, "error: could not set channels %d\n",
600 channels);
601 return ret;
602 }
603
604 ret = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
605 if (ret < 0) {
606 dev_err(rtd->dev, "error: could not allocate %d bytes for PCM %d\n",
607 params_buffer_bytes(params), ret);
608 return ret;
609 }
610
611 dmab = snd_pcm_get_dma_buf(substream);
612
613 ret = create_adsp_page_table(substream, pdata, rtd, runtime->dma_area,
614 runtime->dma_bytes, rtd->cpu_dai->id);
615 if (ret < 0)
616 return ret;
617
618 sst_hsw_stream_set_style(hsw, pcm_data->stream,
619 SST_HSW_INTERLEAVING_PER_CHANNEL);
620
621 if (runtime->dma_bytes % PAGE_SIZE)
622 pages = (runtime->dma_bytes / PAGE_SIZE) + 1;
623 else
624 pages = runtime->dma_bytes / PAGE_SIZE;
625
626 ret = sst_hsw_stream_buffer(hsw, pcm_data->stream,
627 pdata->dmab[rtd->cpu_dai->id][substream->stream].addr,
628 pages, runtime->dma_bytes, 0,
629 snd_sgbuf_get_addr(dmab, 0) >> PAGE_SHIFT);
630 if (ret < 0) {
631 dev_err(rtd->dev, "error: failed to set DMA buffer %d\n", ret);
632 return ret;
633 }
634
635 dsp = sst_hsw_get_dsp(hsw);
636
637 module_data = sst_module_get_from_id(dsp, module_id);
638 if (module_data == NULL) {
639 dev_err(rtd->dev, "error: failed to get module config\n");
640 return -EINVAL;
641 }
642
643 sst_hsw_stream_set_module_info(hsw, pcm_data->stream,
644 pcm_data->runtime);
645
646 ret = sst_hsw_stream_commit(hsw, pcm_data->stream);
647 if (ret < 0) {
648 dev_err(rtd->dev, "error: failed to commit stream %d\n", ret);
649 return ret;
650 }
651
652 if (!pcm_data->allocated) {
653 /* Set previous saved volume */
654 sst_hsw_stream_set_volume(hsw, pcm_data->stream, 0,
655 0, pcm_data->volume[0]);
656 sst_hsw_stream_set_volume(hsw, pcm_data->stream, 0,
657 1, pcm_data->volume[1]);
658 pcm_data->allocated = true;
659 }
660
661 ret = sst_hsw_stream_pause(hsw, pcm_data->stream, 1);
662 if (ret < 0)
663 dev_err(rtd->dev, "error: failed to pause %d\n", ret);
664
665 return 0;
666 }
667
hsw_pcm_hw_free(struct snd_pcm_substream * substream)668 static int hsw_pcm_hw_free(struct snd_pcm_substream *substream)
669 {
670 snd_pcm_lib_free_pages(substream);
671 return 0;
672 }
673
hsw_pcm_trigger(struct snd_pcm_substream * substream,int cmd)674 static int hsw_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
675 {
676 struct snd_soc_pcm_runtime *rtd = substream->private_data;
677 struct hsw_priv_data *pdata =
678 snd_soc_platform_get_drvdata(rtd->platform);
679 struct hsw_pcm_data *pcm_data;
680 struct sst_hsw_stream *sst_stream;
681 struct sst_hsw *hsw = pdata->hsw;
682 struct snd_pcm_runtime *runtime = substream->runtime;
683 snd_pcm_uframes_t pos;
684 int dai;
685
686 dai = mod_map[rtd->cpu_dai->id].dai_id;
687 pcm_data = &pdata->pcm[dai][substream->stream];
688 sst_stream = pcm_data->stream;
689
690 switch (cmd) {
691 case SNDRV_PCM_TRIGGER_START:
692 case SNDRV_PCM_TRIGGER_RESUME:
693 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
694 sst_hsw_stream_set_silence_start(hsw, sst_stream, false);
695 sst_hsw_stream_resume(hsw, pcm_data->stream, 0);
696 break;
697 case SNDRV_PCM_TRIGGER_STOP:
698 case SNDRV_PCM_TRIGGER_SUSPEND:
699 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
700 sst_hsw_stream_set_silence_start(hsw, sst_stream, false);
701 sst_hsw_stream_pause(hsw, pcm_data->stream, 0);
702 break;
703 case SNDRV_PCM_TRIGGER_DRAIN:
704 pos = runtime->control->appl_ptr % runtime->buffer_size;
705 sst_hsw_stream_set_old_position(hsw, pcm_data->stream, pos);
706 sst_hsw_stream_set_silence_start(hsw, sst_stream, true);
707 break;
708 default:
709 break;
710 }
711
712 return 0;
713 }
714
hsw_notify_pointer(struct sst_hsw_stream * stream,void * data)715 static u32 hsw_notify_pointer(struct sst_hsw_stream *stream, void *data)
716 {
717 struct hsw_pcm_data *pcm_data = data;
718 struct snd_pcm_substream *substream = pcm_data->substream;
719 struct snd_pcm_runtime *runtime = substream->runtime;
720 struct snd_soc_pcm_runtime *rtd = substream->private_data;
721 struct hsw_priv_data *pdata =
722 snd_soc_platform_get_drvdata(rtd->platform);
723 struct sst_hsw *hsw = pdata->hsw;
724 u32 pos;
725 snd_pcm_uframes_t position = bytes_to_frames(runtime,
726 sst_hsw_get_dsp_position(hsw, pcm_data->stream));
727 unsigned char *dma_area = runtime->dma_area;
728 snd_pcm_uframes_t dma_frames =
729 bytes_to_frames(runtime, runtime->dma_bytes);
730 snd_pcm_uframes_t old_position;
731 ssize_t samples;
732
733 pos = frames_to_bytes(runtime,
734 (runtime->control->appl_ptr % runtime->buffer_size));
735
736 dev_vdbg(rtd->dev, "PCM: App pointer %d bytes\n", pos);
737
738 /* SST fw don't know where to stop dma
739 * So, SST driver need to clean the data which has been consumed
740 */
741 if (dma_area == NULL || dma_frames <= 0
742 || (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
743 || !sst_hsw_stream_get_silence_start(hsw, stream)) {
744 snd_pcm_period_elapsed(substream);
745 return pos;
746 }
747
748 old_position = sst_hsw_stream_get_old_position(hsw, stream);
749 if (position > old_position) {
750 if (position < dma_frames) {
751 samples = SST_SAMPLES(runtime, position - old_position);
752 snd_pcm_format_set_silence(runtime->format,
753 SST_OLD_POSITION(dma_area,
754 runtime, old_position),
755 samples);
756 } else
757 dev_err(rtd->dev, "PCM: position is wrong\n");
758 } else {
759 if (old_position < dma_frames) {
760 samples = SST_SAMPLES(runtime,
761 dma_frames - old_position);
762 snd_pcm_format_set_silence(runtime->format,
763 SST_OLD_POSITION(dma_area,
764 runtime, old_position),
765 samples);
766 } else
767 dev_err(rtd->dev, "PCM: dma_bytes is wrong\n");
768 if (position < dma_frames) {
769 samples = SST_SAMPLES(runtime, position);
770 snd_pcm_format_set_silence(runtime->format,
771 dma_area, samples);
772 } else
773 dev_err(rtd->dev, "PCM: position is wrong\n");
774 }
775 sst_hsw_stream_set_old_position(hsw, stream, position);
776
777 /* let alsa know we have play a period */
778 snd_pcm_period_elapsed(substream);
779 return pos;
780 }
781
hsw_pcm_pointer(struct snd_pcm_substream * substream)782 static snd_pcm_uframes_t hsw_pcm_pointer(struct snd_pcm_substream *substream)
783 {
784 struct snd_soc_pcm_runtime *rtd = substream->private_data;
785 struct snd_pcm_runtime *runtime = substream->runtime;
786 struct hsw_priv_data *pdata =
787 snd_soc_platform_get_drvdata(rtd->platform);
788 struct hsw_pcm_data *pcm_data;
789 struct sst_hsw *hsw = pdata->hsw;
790 snd_pcm_uframes_t offset;
791 uint64_t ppos;
792 u32 position;
793 int dai;
794
795 dai = mod_map[rtd->cpu_dai->id].dai_id;
796 pcm_data = &pdata->pcm[dai][substream->stream];
797 position = sst_hsw_get_dsp_position(hsw, pcm_data->stream);
798
799 offset = bytes_to_frames(runtime, position);
800 ppos = sst_hsw_get_dsp_presentation_position(hsw, pcm_data->stream);
801
802 dev_vdbg(rtd->dev, "PCM: DMA pointer %du bytes, pos %llu\n",
803 position, ppos);
804 return offset;
805 }
806
hsw_pcm_open(struct snd_pcm_substream * substream)807 static int hsw_pcm_open(struct snd_pcm_substream *substream)
808 {
809 struct snd_soc_pcm_runtime *rtd = substream->private_data;
810 struct hsw_priv_data *pdata =
811 snd_soc_platform_get_drvdata(rtd->platform);
812 struct hsw_pcm_data *pcm_data;
813 struct sst_hsw *hsw = pdata->hsw;
814 int dai;
815
816 dai = mod_map[rtd->cpu_dai->id].dai_id;
817 pcm_data = &pdata->pcm[dai][substream->stream];
818
819 mutex_lock(&pcm_data->mutex);
820 pm_runtime_get_sync(pdata->dev);
821
822 snd_soc_pcm_set_drvdata(rtd, pcm_data);
823 pcm_data->substream = substream;
824
825 snd_soc_set_runtime_hwparams(substream, &hsw_pcm_hardware);
826
827 pcm_data->stream = sst_hsw_stream_new(hsw, rtd->cpu_dai->id,
828 hsw_notify_pointer, pcm_data);
829 if (pcm_data->stream == NULL) {
830 dev_err(rtd->dev, "error: failed to create stream\n");
831 pm_runtime_mark_last_busy(pdata->dev);
832 pm_runtime_put_autosuspend(pdata->dev);
833 mutex_unlock(&pcm_data->mutex);
834 return -EINVAL;
835 }
836
837 mutex_unlock(&pcm_data->mutex);
838 return 0;
839 }
840
hsw_pcm_close(struct snd_pcm_substream * substream)841 static int hsw_pcm_close(struct snd_pcm_substream *substream)
842 {
843 struct snd_soc_pcm_runtime *rtd = substream->private_data;
844 struct hsw_priv_data *pdata =
845 snd_soc_platform_get_drvdata(rtd->platform);
846 struct hsw_pcm_data *pcm_data;
847 struct sst_hsw *hsw = pdata->hsw;
848 int ret, dai;
849
850 dai = mod_map[rtd->cpu_dai->id].dai_id;
851 pcm_data = &pdata->pcm[dai][substream->stream];
852
853 mutex_lock(&pcm_data->mutex);
854 ret = sst_hsw_stream_reset(hsw, pcm_data->stream);
855 if (ret < 0) {
856 dev_dbg(rtd->dev, "error: reset stream failed %d\n", ret);
857 goto out;
858 }
859
860 ret = sst_hsw_stream_free(hsw, pcm_data->stream);
861 if (ret < 0) {
862 dev_dbg(rtd->dev, "error: free stream failed %d\n", ret);
863 goto out;
864 }
865 pcm_data->allocated = 0;
866 pcm_data->stream = NULL;
867
868 out:
869 pm_runtime_mark_last_busy(pdata->dev);
870 pm_runtime_put_autosuspend(pdata->dev);
871 mutex_unlock(&pcm_data->mutex);
872 return ret;
873 }
874
875 static struct snd_pcm_ops hsw_pcm_ops = {
876 .open = hsw_pcm_open,
877 .close = hsw_pcm_close,
878 .ioctl = snd_pcm_lib_ioctl,
879 .hw_params = hsw_pcm_hw_params,
880 .hw_free = hsw_pcm_hw_free,
881 .trigger = hsw_pcm_trigger,
882 .pointer = hsw_pcm_pointer,
883 .page = snd_pcm_sgbuf_ops_page,
884 };
885
hsw_pcm_create_modules(struct hsw_priv_data * pdata)886 static int hsw_pcm_create_modules(struct hsw_priv_data *pdata)
887 {
888 struct sst_hsw *hsw = pdata->hsw;
889 struct hsw_pcm_data *pcm_data;
890 int i;
891
892 for (i = 0; i < ARRAY_SIZE(mod_map); i++) {
893 pcm_data = &pdata->pcm[mod_map[i].dai_id][mod_map[i].stream];
894
895 /* create new runtime module, use same offset if recreated */
896 pcm_data->runtime = sst_hsw_runtime_module_create(hsw,
897 mod_map[i].mod_id, pcm_data->persistent_offset);
898 if (pcm_data->runtime == NULL)
899 goto err;
900 pcm_data->persistent_offset =
901 pcm_data->runtime->persistent_offset;
902 }
903
904 /* create runtime blocks for module waves */
905 if (sst_hsw_is_module_loaded(hsw, SST_HSW_MODULE_WAVES)) {
906 pdata->runtime_waves = sst_hsw_runtime_module_create(hsw,
907 SST_HSW_MODULE_WAVES, 0);
908 if (pdata->runtime_waves == NULL)
909 goto err;
910 }
911
912 return 0;
913
914 err:
915 for (--i; i >= 0; i--) {
916 pcm_data = &pdata->pcm[mod_map[i].dai_id][mod_map[i].stream];
917 sst_hsw_runtime_module_free(pcm_data->runtime);
918 }
919
920 return -ENODEV;
921 }
922
hsw_pcm_free_modules(struct hsw_priv_data * pdata)923 static void hsw_pcm_free_modules(struct hsw_priv_data *pdata)
924 {
925 struct sst_hsw *hsw = pdata->hsw;
926 struct hsw_pcm_data *pcm_data;
927 int i;
928
929 for (i = 0; i < ARRAY_SIZE(mod_map); i++) {
930 pcm_data = &pdata->pcm[mod_map[i].dai_id][mod_map[i].stream];
931 if (pcm_data->runtime){
932 sst_hsw_runtime_module_free(pcm_data->runtime);
933 pcm_data->runtime = NULL;
934 }
935 }
936 if (sst_hsw_is_module_loaded(hsw, SST_HSW_MODULE_WAVES) &&
937 pdata->runtime_waves) {
938 sst_hsw_runtime_module_free(pdata->runtime_waves);
939 pdata->runtime_waves = NULL;
940 }
941 }
942
hsw_pcm_new(struct snd_soc_pcm_runtime * rtd)943 static int hsw_pcm_new(struct snd_soc_pcm_runtime *rtd)
944 {
945 struct snd_pcm *pcm = rtd->pcm;
946 struct snd_soc_platform *platform = rtd->platform;
947 struct sst_pdata *pdata = dev_get_platdata(platform->dev);
948 struct hsw_priv_data *priv_data = dev_get_drvdata(platform->dev);
949 struct device *dev = pdata->dma_dev;
950 int ret = 0;
951
952 if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream ||
953 pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
954 ret = snd_pcm_lib_preallocate_pages_for_all(pcm,
955 SNDRV_DMA_TYPE_DEV_SG,
956 dev,
957 hsw_pcm_hardware.buffer_bytes_max,
958 hsw_pcm_hardware.buffer_bytes_max);
959 if (ret) {
960 dev_err(rtd->dev, "dma buffer allocation failed %d\n",
961 ret);
962 return ret;
963 }
964 }
965 if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream)
966 priv_data->pcm[rtd->cpu_dai->id][SNDRV_PCM_STREAM_PLAYBACK].hsw_pcm = pcm;
967 if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream)
968 priv_data->pcm[rtd->cpu_dai->id][SNDRV_PCM_STREAM_CAPTURE].hsw_pcm = pcm;
969
970 return ret;
971 }
972
973 #define HSW_FORMATS \
974 (SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE)
975
976 static struct snd_soc_dai_driver hsw_dais[] = {
977 {
978 .name = "System Pin",
979 .id = HSW_PCM_DAI_ID_SYSTEM,
980 .playback = {
981 .stream_name = "System Playback",
982 .channels_min = 2,
983 .channels_max = 2,
984 .rates = SNDRV_PCM_RATE_48000,
985 .formats = SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE,
986 },
987 .capture = {
988 .stream_name = "Analog Capture",
989 .channels_min = 2,
990 .channels_max = 4,
991 .rates = SNDRV_PCM_RATE_48000,
992 .formats = SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE,
993 },
994 },
995 {
996 /* PCM */
997 .name = "Offload0 Pin",
998 .id = HSW_PCM_DAI_ID_OFFLOAD0,
999 .playback = {
1000 .stream_name = "Offload0 Playback",
1001 .channels_min = 2,
1002 .channels_max = 2,
1003 .rates = SNDRV_PCM_RATE_8000_192000,
1004 .formats = HSW_FORMATS,
1005 },
1006 },
1007 {
1008 /* PCM */
1009 .name = "Offload1 Pin",
1010 .id = HSW_PCM_DAI_ID_OFFLOAD1,
1011 .playback = {
1012 .stream_name = "Offload1 Playback",
1013 .channels_min = 2,
1014 .channels_max = 2,
1015 .rates = SNDRV_PCM_RATE_8000_192000,
1016 .formats = HSW_FORMATS,
1017 },
1018 },
1019 {
1020 .name = "Loopback Pin",
1021 .id = HSW_PCM_DAI_ID_LOOPBACK,
1022 .capture = {
1023 .stream_name = "Loopback Capture",
1024 .channels_min = 2,
1025 .channels_max = 2,
1026 .rates = SNDRV_PCM_RATE_48000,
1027 .formats = SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE,
1028 },
1029 },
1030 };
1031
1032 static const struct snd_soc_dapm_widget widgets[] = {
1033
1034 /* Backend DAIs */
1035 SND_SOC_DAPM_AIF_IN("SSP0 CODEC IN", NULL, 0, SND_SOC_NOPM, 0, 0),
1036 SND_SOC_DAPM_AIF_OUT("SSP0 CODEC OUT", NULL, 0, SND_SOC_NOPM, 0, 0),
1037 SND_SOC_DAPM_AIF_IN("SSP1 BT IN", NULL, 0, SND_SOC_NOPM, 0, 0),
1038 SND_SOC_DAPM_AIF_OUT("SSP1 BT OUT", NULL, 0, SND_SOC_NOPM, 0, 0),
1039
1040 /* Global Playback Mixer */
1041 SND_SOC_DAPM_MIXER("Playback VMixer", SND_SOC_NOPM, 0, 0, NULL, 0),
1042 };
1043
1044 static const struct snd_soc_dapm_route graph[] = {
1045
1046 /* Playback Mixer */
1047 {"Playback VMixer", NULL, "System Playback"},
1048 {"Playback VMixer", NULL, "Offload0 Playback"},
1049 {"Playback VMixer", NULL, "Offload1 Playback"},
1050
1051 {"SSP0 CODEC OUT", NULL, "Playback VMixer"},
1052
1053 {"Analog Capture", NULL, "SSP0 CODEC IN"},
1054 };
1055
hsw_pcm_probe(struct snd_soc_platform * platform)1056 static int hsw_pcm_probe(struct snd_soc_platform *platform)
1057 {
1058 struct hsw_priv_data *priv_data = snd_soc_platform_get_drvdata(platform);
1059 struct sst_pdata *pdata = dev_get_platdata(platform->dev);
1060 struct device *dma_dev, *dev;
1061 int i, ret = 0;
1062
1063 if (!pdata)
1064 return -ENODEV;
1065
1066 dev = platform->dev;
1067 dma_dev = pdata->dma_dev;
1068
1069 priv_data->hsw = pdata->dsp;
1070 priv_data->dev = platform->dev;
1071 priv_data->pm_state = HSW_PM_STATE_D0;
1072 priv_data->soc_card = platform->component.card;
1073
1074 /* allocate DSP buffer page tables */
1075 for (i = 0; i < ARRAY_SIZE(hsw_dais); i++) {
1076
1077 /* playback */
1078 if (hsw_dais[i].playback.channels_min) {
1079 mutex_init(&priv_data->pcm[i][SNDRV_PCM_STREAM_PLAYBACK].mutex);
1080 ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, dma_dev,
1081 PAGE_SIZE, &priv_data->dmab[i][0]);
1082 if (ret < 0)
1083 goto err;
1084 }
1085
1086 /* capture */
1087 if (hsw_dais[i].capture.channels_min) {
1088 mutex_init(&priv_data->pcm[i][SNDRV_PCM_STREAM_CAPTURE].mutex);
1089 ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, dma_dev,
1090 PAGE_SIZE, &priv_data->dmab[i][1]);
1091 if (ret < 0)
1092 goto err;
1093 }
1094 }
1095
1096 /* allocate runtime modules */
1097 ret = hsw_pcm_create_modules(priv_data);
1098 if (ret < 0)
1099 goto err;
1100
1101 /* enable runtime PM with auto suspend */
1102 pm_runtime_set_autosuspend_delay(platform->dev,
1103 SST_RUNTIME_SUSPEND_DELAY);
1104 pm_runtime_use_autosuspend(platform->dev);
1105 pm_runtime_enable(platform->dev);
1106 pm_runtime_idle(platform->dev);
1107
1108 return 0;
1109
1110 err:
1111 for (--i; i >= 0; i--) {
1112 if (hsw_dais[i].playback.channels_min)
1113 snd_dma_free_pages(&priv_data->dmab[i][0]);
1114 if (hsw_dais[i].capture.channels_min)
1115 snd_dma_free_pages(&priv_data->dmab[i][1]);
1116 }
1117 return ret;
1118 }
1119
hsw_pcm_remove(struct snd_soc_platform * platform)1120 static int hsw_pcm_remove(struct snd_soc_platform *platform)
1121 {
1122 struct hsw_priv_data *priv_data =
1123 snd_soc_platform_get_drvdata(platform);
1124 int i;
1125
1126 pm_runtime_disable(platform->dev);
1127 hsw_pcm_free_modules(priv_data);
1128
1129 for (i = 0; i < ARRAY_SIZE(hsw_dais); i++) {
1130 if (hsw_dais[i].playback.channels_min)
1131 snd_dma_free_pages(&priv_data->dmab[i][0]);
1132 if (hsw_dais[i].capture.channels_min)
1133 snd_dma_free_pages(&priv_data->dmab[i][1]);
1134 }
1135
1136 return 0;
1137 }
1138
1139 static struct snd_soc_platform_driver hsw_soc_platform = {
1140 .probe = hsw_pcm_probe,
1141 .remove = hsw_pcm_remove,
1142 .ops = &hsw_pcm_ops,
1143 .pcm_new = hsw_pcm_new,
1144 };
1145
1146 static const struct snd_soc_component_driver hsw_dai_component = {
1147 .name = "haswell-dai",
1148 .controls = hsw_volume_controls,
1149 .num_controls = ARRAY_SIZE(hsw_volume_controls),
1150 .dapm_widgets = widgets,
1151 .num_dapm_widgets = ARRAY_SIZE(widgets),
1152 .dapm_routes = graph,
1153 .num_dapm_routes = ARRAY_SIZE(graph),
1154 };
1155
hsw_pcm_dev_probe(struct platform_device * pdev)1156 static int hsw_pcm_dev_probe(struct platform_device *pdev)
1157 {
1158 struct sst_pdata *sst_pdata = dev_get_platdata(&pdev->dev);
1159 struct hsw_priv_data *priv_data;
1160 int ret;
1161
1162 if (!sst_pdata)
1163 return -EINVAL;
1164
1165 priv_data = devm_kzalloc(&pdev->dev, sizeof(*priv_data), GFP_KERNEL);
1166 if (!priv_data)
1167 return -ENOMEM;
1168
1169 ret = sst_hsw_dsp_init(&pdev->dev, sst_pdata);
1170 if (ret < 0)
1171 return -ENODEV;
1172
1173 priv_data->hsw = sst_pdata->dsp;
1174 platform_set_drvdata(pdev, priv_data);
1175
1176 ret = snd_soc_register_platform(&pdev->dev, &hsw_soc_platform);
1177 if (ret < 0)
1178 goto err_plat;
1179
1180 ret = snd_soc_register_component(&pdev->dev, &hsw_dai_component,
1181 hsw_dais, ARRAY_SIZE(hsw_dais));
1182 if (ret < 0)
1183 goto err_comp;
1184
1185 return 0;
1186
1187 err_comp:
1188 snd_soc_unregister_platform(&pdev->dev);
1189 err_plat:
1190 sst_hsw_dsp_free(&pdev->dev, sst_pdata);
1191 return 0;
1192 }
1193
hsw_pcm_dev_remove(struct platform_device * pdev)1194 static int hsw_pcm_dev_remove(struct platform_device *pdev)
1195 {
1196 struct sst_pdata *sst_pdata = dev_get_platdata(&pdev->dev);
1197
1198 snd_soc_unregister_platform(&pdev->dev);
1199 snd_soc_unregister_component(&pdev->dev);
1200 sst_hsw_dsp_free(&pdev->dev, sst_pdata);
1201
1202 return 0;
1203 }
1204
1205 #ifdef CONFIG_PM
1206
hsw_pcm_runtime_idle(struct device * dev)1207 static int hsw_pcm_runtime_idle(struct device *dev)
1208 {
1209 return 0;
1210 }
1211
hsw_pcm_suspend(struct device * dev)1212 static int hsw_pcm_suspend(struct device *dev)
1213 {
1214 struct hsw_priv_data *pdata = dev_get_drvdata(dev);
1215 struct sst_hsw *hsw = pdata->hsw;
1216
1217 /* enter D3 state and stall */
1218 sst_hsw_dsp_runtime_suspend(hsw);
1219 /* free all runtime modules */
1220 hsw_pcm_free_modules(pdata);
1221 /* put the DSP to sleep, fw unloaded after runtime modules freed */
1222 sst_hsw_dsp_runtime_sleep(hsw);
1223 return 0;
1224 }
1225
hsw_pcm_runtime_suspend(struct device * dev)1226 static int hsw_pcm_runtime_suspend(struct device *dev)
1227 {
1228 struct hsw_priv_data *pdata = dev_get_drvdata(dev);
1229 struct sst_hsw *hsw = pdata->hsw;
1230 int ret;
1231
1232 if (pdata->pm_state >= HSW_PM_STATE_RTD3)
1233 return 0;
1234
1235 /* fw modules will be unloaded on RTD3, set flag to track */
1236 if (sst_hsw_is_module_active(hsw, SST_HSW_MODULE_WAVES)) {
1237 ret = sst_hsw_module_disable(hsw, SST_HSW_MODULE_WAVES, 0);
1238 if (ret < 0)
1239 return ret;
1240 sst_hsw_set_module_enabled_rtd3(hsw, SST_HSW_MODULE_WAVES);
1241 }
1242 hsw_pcm_suspend(dev);
1243 pdata->pm_state = HSW_PM_STATE_RTD3;
1244
1245 return 0;
1246 }
1247
hsw_pcm_runtime_resume(struct device * dev)1248 static int hsw_pcm_runtime_resume(struct device *dev)
1249 {
1250 struct hsw_priv_data *pdata = dev_get_drvdata(dev);
1251 struct sst_hsw *hsw = pdata->hsw;
1252 int ret;
1253
1254 if (pdata->pm_state != HSW_PM_STATE_RTD3)
1255 return 0;
1256
1257 ret = sst_hsw_dsp_load(hsw);
1258 if (ret < 0) {
1259 dev_err(dev, "failed to reload %d\n", ret);
1260 return ret;
1261 }
1262
1263 ret = hsw_pcm_create_modules(pdata);
1264 if (ret < 0) {
1265 dev_err(dev, "failed to create modules %d\n", ret);
1266 return ret;
1267 }
1268
1269 ret = sst_hsw_dsp_runtime_resume(hsw);
1270 if (ret < 0)
1271 return ret;
1272 else if (ret == 1) /* no action required */
1273 return 0;
1274
1275 /* check flag when resume */
1276 if (sst_hsw_is_module_enabled_rtd3(hsw, SST_HSW_MODULE_WAVES)) {
1277 ret = sst_hsw_module_enable(hsw, SST_HSW_MODULE_WAVES, 0);
1278 if (ret < 0)
1279 return ret;
1280 /* put parameters from buffer to dsp */
1281 ret = sst_hsw_launch_param_buf(hsw);
1282 if (ret < 0)
1283 return ret;
1284 /* unset flag */
1285 sst_hsw_set_module_disabled_rtd3(hsw, SST_HSW_MODULE_WAVES);
1286 }
1287
1288 pdata->pm_state = HSW_PM_STATE_D0;
1289 return ret;
1290 }
1291
1292 #else
1293 #define hsw_pcm_runtime_idle NULL
1294 #define hsw_pcm_runtime_suspend NULL
1295 #define hsw_pcm_runtime_resume NULL
1296 #endif
1297
1298 #ifdef CONFIG_PM
1299
hsw_pcm_complete(struct device * dev)1300 static void hsw_pcm_complete(struct device *dev)
1301 {
1302 struct hsw_priv_data *pdata = dev_get_drvdata(dev);
1303 struct sst_hsw *hsw = pdata->hsw;
1304 struct hsw_pcm_data *pcm_data;
1305 int i, err;
1306
1307 if (pdata->pm_state != HSW_PM_STATE_D3)
1308 return;
1309
1310 err = sst_hsw_dsp_load(hsw);
1311 if (err < 0) {
1312 dev_err(dev, "failed to reload %d\n", err);
1313 return;
1314 }
1315
1316 err = hsw_pcm_create_modules(pdata);
1317 if (err < 0) {
1318 dev_err(dev, "failed to create modules %d\n", err);
1319 return;
1320 }
1321
1322 for (i = 0; i < ARRAY_SIZE(mod_map); i++) {
1323 pcm_data = &pdata->pcm[mod_map[i].dai_id][mod_map[i].stream];
1324
1325 if (!pcm_data->substream)
1326 continue;
1327
1328 err = sst_module_runtime_restore(pcm_data->runtime,
1329 &pcm_data->context);
1330 if (err < 0)
1331 dev_err(dev, "failed to restore context for PCM %d\n", i);
1332 }
1333
1334 snd_soc_resume(pdata->soc_card->dev);
1335
1336 err = sst_hsw_dsp_runtime_resume(hsw);
1337 if (err < 0)
1338 return;
1339 else if (err == 1) /* no action required */
1340 return;
1341
1342 pdata->pm_state = HSW_PM_STATE_D0;
1343 return;
1344 }
1345
hsw_pcm_prepare(struct device * dev)1346 static int hsw_pcm_prepare(struct device *dev)
1347 {
1348 struct hsw_priv_data *pdata = dev_get_drvdata(dev);
1349 struct hsw_pcm_data *pcm_data;
1350 int i, err;
1351
1352 if (pdata->pm_state == HSW_PM_STATE_D3)
1353 return 0;
1354 else if (pdata->pm_state == HSW_PM_STATE_D0) {
1355 /* suspend all active streams */
1356 for (i = 0; i < ARRAY_SIZE(mod_map); i++) {
1357 pcm_data = &pdata->pcm[mod_map[i].dai_id][mod_map[i].stream];
1358
1359 if (!pcm_data->substream)
1360 continue;
1361 dev_dbg(dev, "suspending pcm %d\n", i);
1362 snd_pcm_suspend_all(pcm_data->hsw_pcm);
1363
1364 /* We need to wait until the DSP FW stops the streams */
1365 msleep(2);
1366 }
1367
1368 /* preserve persistent memory */
1369 for (i = 0; i < ARRAY_SIZE(mod_map); i++) {
1370 pcm_data = &pdata->pcm[mod_map[i].dai_id][mod_map[i].stream];
1371
1372 if (!pcm_data->substream)
1373 continue;
1374
1375 dev_dbg(dev, "saving context pcm %d\n", i);
1376 err = sst_module_runtime_save(pcm_data->runtime,
1377 &pcm_data->context);
1378 if (err < 0)
1379 dev_err(dev, "failed to save context for PCM %d\n", i);
1380 }
1381 hsw_pcm_suspend(dev);
1382 }
1383
1384 snd_soc_suspend(pdata->soc_card->dev);
1385 snd_soc_poweroff(pdata->soc_card->dev);
1386
1387 pdata->pm_state = HSW_PM_STATE_D3;
1388
1389 return 0;
1390 }
1391
1392 #else
1393 #define hsw_pcm_prepare NULL
1394 #define hsw_pcm_complete NULL
1395 #endif
1396
1397 static const struct dev_pm_ops hsw_pcm_pm = {
1398 .runtime_idle = hsw_pcm_runtime_idle,
1399 .runtime_suspend = hsw_pcm_runtime_suspend,
1400 .runtime_resume = hsw_pcm_runtime_resume,
1401 .prepare = hsw_pcm_prepare,
1402 .complete = hsw_pcm_complete,
1403 };
1404
1405 static struct platform_driver hsw_pcm_driver = {
1406 .driver = {
1407 .name = "haswell-pcm-audio",
1408 .pm = &hsw_pcm_pm,
1409 },
1410
1411 .probe = hsw_pcm_dev_probe,
1412 .remove = hsw_pcm_dev_remove,
1413 };
1414 module_platform_driver(hsw_pcm_driver);
1415
1416 MODULE_AUTHOR("Liam Girdwood, Xingchao Wang");
1417 MODULE_DESCRIPTION("Haswell/Lynxpoint + Broadwell/Wildcatpoint PCM");
1418 MODULE_LICENSE("GPL v2");
1419 MODULE_ALIAS("platform:haswell-pcm-audio");
1420