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d927fdae VK |
1 | /* |
2 | * sst_platform.c - Intel MID Platform driver | |
3 | * | |
0cd5751a | 4 | * Copyright (C) 2010-2013 Intel Corp |
d927fdae VK |
5 | * Author: Vinod Koul <vinod.koul@intel.com> |
6 | * Author: Harsha Priya <priya.harsha@intel.com> | |
7 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; version 2 of the License. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, but | |
14 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | * General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License along | |
19 | * with this program; if not, write to the Free Software Foundation, Inc., | |
20 | * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. | |
21 | * | |
22 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
23 | * | |
24 | * | |
25 | */ | |
26 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt | |
27 | ||
28 | #include <linux/slab.h> | |
29 | #include <linux/io.h> | |
da155d5b | 30 | #include <linux/module.h> |
d927fdae VK |
31 | #include <sound/core.h> |
32 | #include <sound/pcm.h> | |
33 | #include <sound/pcm_params.h> | |
34 | #include <sound/soc.h> | |
c514a911 | 35 | #include <sound/compress_driver.h> |
d927fdae VK |
36 | #include "sst_platform.h" |
37 | ||
03c33042 VK |
38 | static struct sst_device *sst; |
39 | static DEFINE_MUTEX(sst_lock); | |
40 | ||
41 | int sst_register_dsp(struct sst_device *dev) | |
42 | { | |
656a22a1 TI |
43 | if (WARN_ON(!dev)) |
44 | return -EINVAL; | |
03c33042 VK |
45 | if (!try_module_get(dev->dev->driver->owner)) |
46 | return -ENODEV; | |
47 | mutex_lock(&sst_lock); | |
48 | if (sst) { | |
49 | pr_err("we already have a device %s\n", sst->name); | |
50 | module_put(dev->dev->driver->owner); | |
51 | mutex_unlock(&sst_lock); | |
52 | return -EEXIST; | |
53 | } | |
54 | pr_debug("registering device %s\n", dev->name); | |
55 | sst = dev; | |
56 | mutex_unlock(&sst_lock); | |
57 | return 0; | |
58 | } | |
59 | EXPORT_SYMBOL_GPL(sst_register_dsp); | |
60 | ||
61 | int sst_unregister_dsp(struct sst_device *dev) | |
62 | { | |
656a22a1 TI |
63 | if (WARN_ON(!dev)) |
64 | return -EINVAL; | |
03c33042 VK |
65 | if (dev != sst) |
66 | return -EINVAL; | |
67 | ||
68 | mutex_lock(&sst_lock); | |
69 | ||
70 | if (!sst) { | |
71 | mutex_unlock(&sst_lock); | |
72 | return -EIO; | |
73 | } | |
74 | ||
75 | module_put(sst->dev->driver->owner); | |
76 | pr_debug("unreg %s\n", sst->name); | |
77 | sst = NULL; | |
78 | mutex_unlock(&sst_lock); | |
79 | return 0; | |
80 | } | |
81 | EXPORT_SYMBOL_GPL(sst_unregister_dsp); | |
82 | ||
d927fdae VK |
83 | static struct snd_pcm_hardware sst_platform_pcm_hw = { |
84 | .info = (SNDRV_PCM_INFO_INTERLEAVED | | |
85 | SNDRV_PCM_INFO_DOUBLE | | |
86 | SNDRV_PCM_INFO_PAUSE | | |
87 | SNDRV_PCM_INFO_RESUME | | |
88 | SNDRV_PCM_INFO_MMAP| | |
89 | SNDRV_PCM_INFO_MMAP_VALID | | |
90 | SNDRV_PCM_INFO_BLOCK_TRANSFER | | |
91 | SNDRV_PCM_INFO_SYNC_START), | |
d927fdae VK |
92 | .buffer_bytes_max = SST_MAX_BUFFER, |
93 | .period_bytes_min = SST_MIN_PERIOD_BYTES, | |
94 | .period_bytes_max = SST_MAX_PERIOD_BYTES, | |
95 | .periods_min = SST_MIN_PERIODS, | |
96 | .periods_max = SST_MAX_PERIODS, | |
97 | .fifo_size = SST_FIFO_SIZE, | |
98 | }; | |
99 | ||
100 | /* MFLD - MSIC */ | |
d1b73287 | 101 | static struct snd_soc_dai_driver sst_platform_dai[] = { |
d927fdae VK |
102 | { |
103 | .name = "Headset-cpu-dai", | |
104 | .id = 0, | |
105 | .playback = { | |
106 | .channels_min = SST_STEREO, | |
107 | .channels_max = SST_STEREO, | |
108 | .rates = SNDRV_PCM_RATE_48000, | |
109 | .formats = SNDRV_PCM_FMTBIT_S24_LE, | |
110 | }, | |
a7bffdf7 HP |
111 | .capture = { |
112 | .channels_min = 1, | |
113 | .channels_max = 5, | |
114 | .rates = SNDRV_PCM_RATE_48000, | |
115 | .formats = SNDRV_PCM_FMTBIT_S24_LE, | |
116 | }, | |
d927fdae VK |
117 | }, |
118 | { | |
119 | .name = "Speaker-cpu-dai", | |
120 | .id = 1, | |
121 | .playback = { | |
122 | .channels_min = SST_MONO, | |
123 | .channels_max = SST_STEREO, | |
124 | .rates = SNDRV_PCM_RATE_48000, | |
125 | .formats = SNDRV_PCM_FMTBIT_S24_LE, | |
126 | }, | |
127 | }, | |
128 | { | |
129 | .name = "Vibra1-cpu-dai", | |
130 | .id = 2, | |
131 | .playback = { | |
132 | .channels_min = SST_MONO, | |
133 | .channels_max = SST_MONO, | |
134 | .rates = SNDRV_PCM_RATE_48000, | |
135 | .formats = SNDRV_PCM_FMTBIT_S24_LE, | |
136 | }, | |
137 | }, | |
138 | { | |
139 | .name = "Vibra2-cpu-dai", | |
140 | .id = 3, | |
141 | .playback = { | |
142 | .channels_min = SST_MONO, | |
143 | .channels_max = SST_STEREO, | |
144 | .rates = SNDRV_PCM_RATE_48000, | |
145 | .formats = SNDRV_PCM_FMTBIT_S24_LE, | |
146 | }, | |
147 | }, | |
c514a911 VK |
148 | { |
149 | .name = "Compress-cpu-dai", | |
150 | .compress_dai = 1, | |
151 | .playback = { | |
152 | .channels_min = SST_STEREO, | |
153 | .channels_max = SST_STEREO, | |
154 | .rates = SNDRV_PCM_RATE_44100|SNDRV_PCM_RATE_48000, | |
155 | .formats = SNDRV_PCM_FMTBIT_S16_LE, | |
156 | }, | |
157 | }, | |
d927fdae | 158 | }; |
5c68536f | 159 | |
b1c36861 KM |
160 | static const struct snd_soc_component_driver sst_component = { |
161 | .name = "sst", | |
162 | }; | |
163 | ||
d927fdae | 164 | /* helper functions */ |
5c68536f HP |
165 | static inline void sst_set_stream_status(struct sst_runtime_stream *stream, |
166 | int state) | |
167 | { | |
d89b0a13 LG |
168 | unsigned long flags; |
169 | spin_lock_irqsave(&stream->status_lock, flags); | |
5c68536f | 170 | stream->stream_status = state; |
d89b0a13 | 171 | spin_unlock_irqrestore(&stream->status_lock, flags); |
5c68536f HP |
172 | } |
173 | ||
174 | static inline int sst_get_stream_status(struct sst_runtime_stream *stream) | |
175 | { | |
176 | int state; | |
d89b0a13 | 177 | unsigned long flags; |
5c68536f | 178 | |
d89b0a13 | 179 | spin_lock_irqsave(&stream->status_lock, flags); |
5c68536f | 180 | state = stream->stream_status; |
d89b0a13 | 181 | spin_unlock_irqrestore(&stream->status_lock, flags); |
5c68536f HP |
182 | return state; |
183 | } | |
184 | ||
185 | static void sst_fill_pcm_params(struct snd_pcm_substream *substream, | |
03c33042 | 186 | struct sst_pcm_params *param) |
5c68536f HP |
187 | { |
188 | ||
03c33042 VK |
189 | param->codec = SST_CODEC_TYPE_PCM; |
190 | param->num_chan = (u8) substream->runtime->channels; | |
191 | param->pcm_wd_sz = substream->runtime->sample_bits; | |
192 | param->reserved = 0; | |
193 | param->sfreq = substream->runtime->rate; | |
194 | param->ring_buffer_size = snd_pcm_lib_buffer_bytes(substream); | |
195 | param->period_count = substream->runtime->period_size; | |
196 | param->ring_buffer_addr = virt_to_phys(substream->dma_buffer.area); | |
197 | pr_debug("period_cnt = %d\n", param->period_count); | |
198 | pr_debug("sfreq= %d, wd_sz = %d\n", param->sfreq, param->pcm_wd_sz); | |
5c68536f HP |
199 | } |
200 | ||
d927fdae VK |
201 | static int sst_platform_alloc_stream(struct snd_pcm_substream *substream) |
202 | { | |
203 | struct sst_runtime_stream *stream = | |
204 | substream->runtime->private_data; | |
03c33042 VK |
205 | struct sst_pcm_params param = {0}; |
206 | struct sst_stream_params str_params = {0}; | |
d927fdae VK |
207 | int ret_val; |
208 | ||
209 | /* set codec params and inform SST driver the same */ | |
5c68536f | 210 | sst_fill_pcm_params(substream, ¶m); |
d927fdae | 211 | substream->runtime->dma_area = substream->dma_buffer.area; |
d927fdae | 212 | str_params.sparams = param; |
03c33042 | 213 | str_params.codec = param.codec; |
d927fdae VK |
214 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
215 | str_params.ops = STREAM_OPS_PLAYBACK; | |
216 | str_params.device_type = substream->pcm->device + 1; | |
217 | pr_debug("Playbck stream,Device %d\n", | |
218 | substream->pcm->device); | |
219 | } else { | |
220 | str_params.ops = STREAM_OPS_CAPTURE; | |
221 | str_params.device_type = SND_SST_DEVICE_CAPTURE; | |
222 | pr_debug("Capture stream,Device %d\n", | |
223 | substream->pcm->device); | |
224 | } | |
03c33042 | 225 | ret_val = stream->ops->open(&str_params); |
d927fdae VK |
226 | pr_debug("SST_SND_PLAY/CAPTURE ret_val = %x\n", ret_val); |
227 | if (ret_val < 0) | |
228 | return ret_val; | |
229 | ||
230 | stream->stream_info.str_id = ret_val; | |
231 | pr_debug("str id : %d\n", stream->stream_info.str_id); | |
d927fdae VK |
232 | return ret_val; |
233 | } | |
234 | ||
d927fdae VK |
235 | static void sst_period_elapsed(void *mad_substream) |
236 | { | |
237 | struct snd_pcm_substream *substream = mad_substream; | |
238 | struct sst_runtime_stream *stream; | |
5c68536f | 239 | int status; |
d927fdae VK |
240 | |
241 | if (!substream || !substream->runtime) | |
242 | return; | |
243 | stream = substream->runtime->private_data; | |
244 | if (!stream) | |
245 | return; | |
5c68536f HP |
246 | status = sst_get_stream_status(stream); |
247 | if (status != SST_PLATFORM_RUNNING) | |
d927fdae | 248 | return; |
d927fdae | 249 | snd_pcm_period_elapsed(substream); |
d927fdae VK |
250 | } |
251 | ||
252 | static int sst_platform_init_stream(struct snd_pcm_substream *substream) | |
253 | { | |
254 | struct sst_runtime_stream *stream = | |
255 | substream->runtime->private_data; | |
256 | int ret_val; | |
257 | ||
258 | pr_debug("setting buffer ptr param\n"); | |
5c68536f | 259 | sst_set_stream_status(stream, SST_PLATFORM_INIT); |
d927fdae VK |
260 | stream->stream_info.period_elapsed = sst_period_elapsed; |
261 | stream->stream_info.mad_substream = substream; | |
262 | stream->stream_info.buffer_ptr = 0; | |
263 | stream->stream_info.sfreq = substream->runtime->rate; | |
03c33042 | 264 | ret_val = stream->ops->device_control( |
a211701e | 265 | SST_SND_STREAM_INIT, &stream->stream_info); |
d927fdae VK |
266 | if (ret_val) |
267 | pr_err("control_set ret error %d\n", ret_val); | |
268 | return ret_val; | |
269 | ||
270 | } | |
271 | /* end -- helper functions */ | |
272 | ||
273 | static int sst_platform_open(struct snd_pcm_substream *substream) | |
274 | { | |
22be504a | 275 | struct snd_pcm_runtime *runtime = substream->runtime; |
d927fdae | 276 | struct sst_runtime_stream *stream; |
c45471ea | 277 | int ret_val; |
d927fdae VK |
278 | |
279 | pr_debug("sst_platform_open called\n"); | |
22be504a LG |
280 | |
281 | snd_soc_set_runtime_hwparams(substream, &sst_platform_pcm_hw); | |
283e42e0 LG |
282 | ret_val = snd_pcm_hw_constraint_integer(runtime, |
283 | SNDRV_PCM_HW_PARAM_PERIODS); | |
284 | if (ret_val < 0) | |
285 | return ret_val; | |
22be504a | 286 | |
d927fdae VK |
287 | stream = kzalloc(sizeof(*stream), GFP_KERNEL); |
288 | if (!stream) | |
289 | return -ENOMEM; | |
d927fdae | 290 | spin_lock_init(&stream->status_lock); |
03c33042 VK |
291 | |
292 | /* get the sst ops */ | |
293 | mutex_lock(&sst_lock); | |
294 | if (!sst) { | |
295 | pr_err("no device available to run\n"); | |
296 | mutex_unlock(&sst_lock); | |
d927fdae | 297 | kfree(stream); |
03c33042 | 298 | return -ENODEV; |
d927fdae | 299 | } |
03c33042 VK |
300 | if (!try_module_get(sst->dev->driver->owner)) { |
301 | mutex_unlock(&sst_lock); | |
83a3fd3c | 302 | kfree(stream); |
03c33042 | 303 | return -ENODEV; |
d927fdae | 304 | } |
03c33042 VK |
305 | stream->ops = sst->ops; |
306 | mutex_unlock(&sst_lock); | |
307 | ||
308 | stream->stream_info.str_id = 0; | |
309 | sst_set_stream_status(stream, SST_PLATFORM_INIT); | |
310 | stream->stream_info.mad_substream = substream; | |
311 | /* allocate memory for SST API set */ | |
d927fdae | 312 | runtime->private_data = stream; |
283e42e0 LG |
313 | |
314 | return 0; | |
d927fdae VK |
315 | } |
316 | ||
317 | static int sst_platform_close(struct snd_pcm_substream *substream) | |
318 | { | |
319 | struct sst_runtime_stream *stream; | |
320 | int ret_val = 0, str_id; | |
321 | ||
322 | pr_debug("sst_platform_close called\n"); | |
d927fdae VK |
323 | stream = substream->runtime->private_data; |
324 | str_id = stream->stream_info.str_id; | |
d927fdae | 325 | if (str_id) |
03c33042 VK |
326 | ret_val = stream->ops->close(str_id); |
327 | module_put(sst->dev->driver->owner); | |
d927fdae VK |
328 | kfree(stream); |
329 | return ret_val; | |
330 | } | |
331 | ||
332 | static int sst_platform_pcm_prepare(struct snd_pcm_substream *substream) | |
333 | { | |
334 | struct sst_runtime_stream *stream; | |
335 | int ret_val = 0, str_id; | |
336 | ||
337 | pr_debug("sst_platform_pcm_prepare called\n"); | |
d927fdae VK |
338 | stream = substream->runtime->private_data; |
339 | str_id = stream->stream_info.str_id; | |
340 | if (stream->stream_info.str_id) { | |
03c33042 VK |
341 | ret_val = stream->ops->device_control( |
342 | SST_SND_DROP, &str_id); | |
d927fdae VK |
343 | return ret_val; |
344 | } | |
345 | ||
346 | ret_val = sst_platform_alloc_stream(substream); | |
347 | if (ret_val < 0) | |
348 | return ret_val; | |
349 | snprintf(substream->pcm->id, sizeof(substream->pcm->id), | |
350 | "%d", stream->stream_info.str_id); | |
351 | ||
352 | ret_val = sst_platform_init_stream(substream); | |
353 | if (ret_val) | |
354 | return ret_val; | |
355 | substream->runtime->hw.info = SNDRV_PCM_INFO_BLOCK_TRANSFER; | |
356 | return ret_val; | |
357 | } | |
358 | ||
359 | static int sst_platform_pcm_trigger(struct snd_pcm_substream *substream, | |
360 | int cmd) | |
361 | { | |
362 | int ret_val = 0, str_id; | |
363 | struct sst_runtime_stream *stream; | |
a211701e | 364 | int str_cmd, status; |
d927fdae VK |
365 | |
366 | pr_debug("sst_platform_pcm_trigger called\n"); | |
d927fdae | 367 | stream = substream->runtime->private_data; |
d927fdae | 368 | str_id = stream->stream_info.str_id; |
d927fdae VK |
369 | switch (cmd) { |
370 | case SNDRV_PCM_TRIGGER_START: | |
371 | pr_debug("sst: Trigger Start\n"); | |
a211701e HP |
372 | str_cmd = SST_SND_START; |
373 | status = SST_PLATFORM_RUNNING; | |
d927fdae VK |
374 | stream->stream_info.mad_substream = substream; |
375 | break; | |
376 | case SNDRV_PCM_TRIGGER_STOP: | |
377 | pr_debug("sst: in stop\n"); | |
a211701e HP |
378 | str_cmd = SST_SND_DROP; |
379 | status = SST_PLATFORM_DROPPED; | |
d927fdae VK |
380 | break; |
381 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
382 | pr_debug("sst: in pause\n"); | |
a211701e HP |
383 | str_cmd = SST_SND_PAUSE; |
384 | status = SST_PLATFORM_PAUSED; | |
d927fdae VK |
385 | break; |
386 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
387 | pr_debug("sst: in pause release\n"); | |
a211701e HP |
388 | str_cmd = SST_SND_RESUME; |
389 | status = SST_PLATFORM_RUNNING; | |
d927fdae VK |
390 | break; |
391 | default: | |
a211701e | 392 | return -EINVAL; |
d927fdae | 393 | } |
03c33042 | 394 | ret_val = stream->ops->device_control(str_cmd, &str_id); |
a211701e HP |
395 | if (!ret_val) |
396 | sst_set_stream_status(stream, status); | |
397 | ||
d927fdae VK |
398 | return ret_val; |
399 | } | |
400 | ||
401 | ||
402 | static snd_pcm_uframes_t sst_platform_pcm_pointer | |
403 | (struct snd_pcm_substream *substream) | |
404 | { | |
405 | struct sst_runtime_stream *stream; | |
5c68536f | 406 | int ret_val, status; |
d927fdae VK |
407 | struct pcm_stream_info *str_info; |
408 | ||
d927fdae | 409 | stream = substream->runtime->private_data; |
5c68536f HP |
410 | status = sst_get_stream_status(stream); |
411 | if (status == SST_PLATFORM_INIT) | |
d927fdae | 412 | return 0; |
d927fdae | 413 | str_info = &stream->stream_info; |
03c33042 | 414 | ret_val = stream->ops->device_control( |
d927fdae VK |
415 | SST_SND_BUFFER_POINTER, str_info); |
416 | if (ret_val) { | |
417 | pr_err("sst: error code = %d\n", ret_val); | |
418 | return ret_val; | |
419 | } | |
d927fdae VK |
420 | return stream->stream_info.buffer_ptr; |
421 | } | |
422 | ||
5b499f8b VK |
423 | static int sst_platform_pcm_hw_params(struct snd_pcm_substream *substream, |
424 | struct snd_pcm_hw_params *params) | |
425 | { | |
426 | snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params)); | |
427 | memset(substream->runtime->dma_area, 0, params_buffer_bytes(params)); | |
428 | ||
429 | return 0; | |
430 | } | |
d927fdae | 431 | |
9ab88434 | 432 | static int sst_platform_pcm_hw_free(struct snd_pcm_substream *substream) |
433 | { | |
434 | return snd_pcm_lib_free_pages(substream); | |
435 | } | |
436 | ||
d927fdae VK |
437 | static struct snd_pcm_ops sst_platform_ops = { |
438 | .open = sst_platform_open, | |
439 | .close = sst_platform_close, | |
440 | .ioctl = snd_pcm_lib_ioctl, | |
441 | .prepare = sst_platform_pcm_prepare, | |
442 | .trigger = sst_platform_pcm_trigger, | |
443 | .pointer = sst_platform_pcm_pointer, | |
5b499f8b | 444 | .hw_params = sst_platform_pcm_hw_params, |
9ab88434 | 445 | .hw_free = sst_platform_pcm_hw_free, |
d927fdae VK |
446 | }; |
447 | ||
448 | static void sst_pcm_free(struct snd_pcm *pcm) | |
449 | { | |
450 | pr_debug("sst_pcm_free called\n"); | |
451 | snd_pcm_lib_preallocate_free_for_all(pcm); | |
452 | } | |
453 | ||
8faa8c1a | 454 | static int sst_pcm_new(struct snd_soc_pcm_runtime *rtd) |
d927fdae | 455 | { |
552d1ef6 | 456 | struct snd_pcm *pcm = rtd->pcm; |
d927fdae VK |
457 | int retval = 0; |
458 | ||
459 | pr_debug("sst_pcm_new called\n"); | |
25e9e756 JE |
460 | if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream || |
461 | pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) { | |
d927fdae VK |
462 | retval = snd_pcm_lib_preallocate_pages_for_all(pcm, |
463 | SNDRV_DMA_TYPE_CONTINUOUS, | |
464 | snd_dma_continuous_data(GFP_KERNEL), | |
465 | SST_MIN_BUFFER, SST_MAX_BUFFER); | |
466 | if (retval) { | |
467 | pr_err("dma buffer allocationf fail\n"); | |
468 | return retval; | |
469 | } | |
470 | } | |
d927fdae VK |
471 | return retval; |
472 | } | |
c514a911 VK |
473 | |
474 | /* compress stream operations */ | |
475 | static void sst_compr_fragment_elapsed(void *arg) | |
476 | { | |
477 | struct snd_compr_stream *cstream = (struct snd_compr_stream *)arg; | |
478 | ||
479 | pr_debug("fragment elapsed by driver\n"); | |
480 | if (cstream) | |
481 | snd_compr_fragment_elapsed(cstream); | |
482 | } | |
483 | ||
484 | static int sst_platform_compr_open(struct snd_compr_stream *cstream) | |
485 | { | |
486 | ||
487 | int ret_val = 0; | |
488 | struct snd_compr_runtime *runtime = cstream->runtime; | |
489 | struct sst_runtime_stream *stream; | |
490 | ||
491 | stream = kzalloc(sizeof(*stream), GFP_KERNEL); | |
492 | if (!stream) | |
493 | return -ENOMEM; | |
494 | ||
495 | spin_lock_init(&stream->status_lock); | |
496 | ||
497 | /* get the sst ops */ | |
498 | if (!sst || !try_module_get(sst->dev->driver->owner)) { | |
499 | pr_err("no device available to run\n"); | |
500 | ret_val = -ENODEV; | |
501 | goto out_ops; | |
502 | } | |
503 | stream->compr_ops = sst->compr_ops; | |
504 | ||
505 | stream->id = 0; | |
506 | sst_set_stream_status(stream, SST_PLATFORM_INIT); | |
507 | runtime->private_data = stream; | |
508 | return 0; | |
509 | out_ops: | |
510 | kfree(stream); | |
511 | return ret_val; | |
512 | } | |
513 | ||
514 | static int sst_platform_compr_free(struct snd_compr_stream *cstream) | |
515 | { | |
516 | struct sst_runtime_stream *stream; | |
517 | int ret_val = 0, str_id; | |
518 | ||
519 | stream = cstream->runtime->private_data; | |
520 | /*need to check*/ | |
521 | str_id = stream->id; | |
522 | if (str_id) | |
523 | ret_val = stream->compr_ops->close(str_id); | |
524 | module_put(sst->dev->driver->owner); | |
525 | kfree(stream); | |
526 | pr_debug("%s: %d\n", __func__, ret_val); | |
527 | return 0; | |
528 | } | |
529 | ||
530 | static int sst_platform_compr_set_params(struct snd_compr_stream *cstream, | |
531 | struct snd_compr_params *params) | |
532 | { | |
533 | struct sst_runtime_stream *stream; | |
534 | int retval; | |
535 | struct snd_sst_params str_params; | |
536 | struct sst_compress_cb cb; | |
537 | ||
538 | stream = cstream->runtime->private_data; | |
539 | /* construct fw structure for this*/ | |
540 | memset(&str_params, 0, sizeof(str_params)); | |
541 | ||
542 | str_params.ops = STREAM_OPS_PLAYBACK; | |
543 | str_params.stream_type = SST_STREAM_TYPE_MUSIC; | |
544 | str_params.device_type = SND_SST_DEVICE_COMPRESS; | |
545 | ||
546 | switch (params->codec.id) { | |
547 | case SND_AUDIOCODEC_MP3: { | |
548 | str_params.codec = SST_CODEC_TYPE_MP3; | |
549 | str_params.sparams.uc.mp3_params.codec = SST_CODEC_TYPE_MP3; | |
550 | str_params.sparams.uc.mp3_params.num_chan = params->codec.ch_in; | |
551 | str_params.sparams.uc.mp3_params.pcm_wd_sz = 16; | |
552 | break; | |
553 | } | |
554 | ||
555 | case SND_AUDIOCODEC_AAC: { | |
556 | str_params.codec = SST_CODEC_TYPE_AAC; | |
557 | str_params.sparams.uc.aac_params.codec = SST_CODEC_TYPE_AAC; | |
558 | str_params.sparams.uc.aac_params.num_chan = params->codec.ch_in; | |
559 | str_params.sparams.uc.aac_params.pcm_wd_sz = 16; | |
560 | if (params->codec.format == SND_AUDIOSTREAMFORMAT_MP4ADTS) | |
561 | str_params.sparams.uc.aac_params.bs_format = | |
562 | AAC_BIT_STREAM_ADTS; | |
563 | else if (params->codec.format == SND_AUDIOSTREAMFORMAT_RAW) | |
564 | str_params.sparams.uc.aac_params.bs_format = | |
565 | AAC_BIT_STREAM_RAW; | |
566 | else { | |
567 | pr_err("Undefined format%d\n", params->codec.format); | |
568 | return -EINVAL; | |
569 | } | |
570 | str_params.sparams.uc.aac_params.externalsr = | |
571 | params->codec.sample_rate; | |
572 | break; | |
573 | } | |
574 | ||
575 | default: | |
576 | pr_err("codec not supported, id =%d\n", params->codec.id); | |
577 | return -EINVAL; | |
578 | } | |
579 | ||
580 | str_params.aparams.ring_buf_info[0].addr = | |
581 | virt_to_phys(cstream->runtime->buffer); | |
582 | str_params.aparams.ring_buf_info[0].size = | |
583 | cstream->runtime->buffer_size; | |
584 | str_params.aparams.sg_count = 1; | |
585 | str_params.aparams.frag_size = cstream->runtime->fragment_size; | |
586 | ||
587 | cb.param = cstream; | |
588 | cb.compr_cb = sst_compr_fragment_elapsed; | |
589 | ||
590 | retval = stream->compr_ops->open(&str_params, &cb); | |
591 | if (retval < 0) { | |
592 | pr_err("stream allocation failed %d\n", retval); | |
593 | return retval; | |
594 | } | |
595 | ||
596 | stream->id = retval; | |
597 | return 0; | |
598 | } | |
599 | ||
600 | static int sst_platform_compr_trigger(struct snd_compr_stream *cstream, int cmd) | |
601 | { | |
602 | struct sst_runtime_stream *stream = | |
603 | cstream->runtime->private_data; | |
604 | ||
605 | return stream->compr_ops->control(cmd, stream->id); | |
606 | } | |
607 | ||
608 | static int sst_platform_compr_pointer(struct snd_compr_stream *cstream, | |
609 | struct snd_compr_tstamp *tstamp) | |
610 | { | |
611 | struct sst_runtime_stream *stream; | |
612 | ||
613 | stream = cstream->runtime->private_data; | |
614 | stream->compr_ops->tstamp(stream->id, tstamp); | |
615 | tstamp->byte_offset = tstamp->copied_total % | |
616 | (u32)cstream->runtime->buffer_size; | |
617 | pr_debug("calc bytes offset/copied bytes as %d\n", tstamp->byte_offset); | |
618 | return 0; | |
619 | } | |
620 | ||
621 | static int sst_platform_compr_ack(struct snd_compr_stream *cstream, | |
622 | size_t bytes) | |
623 | { | |
624 | struct sst_runtime_stream *stream; | |
625 | ||
626 | stream = cstream->runtime->private_data; | |
627 | stream->compr_ops->ack(stream->id, (unsigned long)bytes); | |
628 | stream->bytes_written += bytes; | |
629 | ||
630 | return 0; | |
631 | } | |
632 | ||
633 | static int sst_platform_compr_get_caps(struct snd_compr_stream *cstream, | |
634 | struct snd_compr_caps *caps) | |
635 | { | |
636 | struct sst_runtime_stream *stream = | |
637 | cstream->runtime->private_data; | |
638 | ||
639 | return stream->compr_ops->get_caps(caps); | |
640 | } | |
641 | ||
642 | static int sst_platform_compr_get_codec_caps(struct snd_compr_stream *cstream, | |
643 | struct snd_compr_codec_caps *codec) | |
644 | { | |
645 | struct sst_runtime_stream *stream = | |
646 | cstream->runtime->private_data; | |
647 | ||
648 | return stream->compr_ops->get_codec_caps(codec); | |
649 | } | |
650 | ||
0cd5751a VK |
651 | static int sst_platform_compr_set_metadata(struct snd_compr_stream *cstream, |
652 | struct snd_compr_metadata *metadata) | |
653 | { | |
654 | struct sst_runtime_stream *stream = | |
655 | cstream->runtime->private_data; | |
656 | ||
657 | return stream->compr_ops->set_metadata(stream->id, metadata); | |
658 | } | |
659 | ||
c514a911 VK |
660 | static struct snd_compr_ops sst_platform_compr_ops = { |
661 | ||
662 | .open = sst_platform_compr_open, | |
663 | .free = sst_platform_compr_free, | |
664 | .set_params = sst_platform_compr_set_params, | |
0cd5751a | 665 | .set_metadata = sst_platform_compr_set_metadata, |
c514a911 VK |
666 | .trigger = sst_platform_compr_trigger, |
667 | .pointer = sst_platform_compr_pointer, | |
668 | .ack = sst_platform_compr_ack, | |
669 | .get_caps = sst_platform_compr_get_caps, | |
670 | .get_codec_caps = sst_platform_compr_get_codec_caps, | |
671 | }; | |
672 | ||
8faa8c1a | 673 | static struct snd_soc_platform_driver sst_soc_platform_drv = { |
d927fdae | 674 | .ops = &sst_platform_ops, |
c514a911 | 675 | .compr_ops = &sst_platform_compr_ops, |
d927fdae VK |
676 | .pcm_new = sst_pcm_new, |
677 | .pcm_free = sst_pcm_free, | |
678 | }; | |
679 | ||
680 | static int sst_platform_probe(struct platform_device *pdev) | |
681 | { | |
682 | int ret; | |
683 | ||
684 | pr_debug("sst_platform_probe called\n"); | |
03c33042 | 685 | sst = NULL; |
d927fdae VK |
686 | ret = snd_soc_register_platform(&pdev->dev, &sst_soc_platform_drv); |
687 | if (ret) { | |
688 | pr_err("registering soc platform failed\n"); | |
689 | return ret; | |
690 | } | |
5c68536f | 691 | |
b1c36861 | 692 | ret = snd_soc_register_component(&pdev->dev, &sst_component, |
d927fdae VK |
693 | sst_platform_dai, ARRAY_SIZE(sst_platform_dai)); |
694 | if (ret) { | |
695 | pr_err("registering cpu dais failed\n"); | |
696 | snd_soc_unregister_platform(&pdev->dev); | |
697 | } | |
698 | return ret; | |
699 | } | |
700 | ||
701 | static int sst_platform_remove(struct platform_device *pdev) | |
702 | { | |
703 | ||
b1c36861 | 704 | snd_soc_unregister_component(&pdev->dev); |
d927fdae | 705 | snd_soc_unregister_platform(&pdev->dev); |
25985edc | 706 | pr_debug("sst_platform_remove success\n"); |
d927fdae VK |
707 | return 0; |
708 | } | |
709 | ||
710 | static struct platform_driver sst_platform_driver = { | |
711 | .driver = { | |
712 | .name = "sst-platform", | |
713 | .owner = THIS_MODULE, | |
714 | }, | |
715 | .probe = sst_platform_probe, | |
716 | .remove = sst_platform_remove, | |
717 | }; | |
718 | ||
29515d62 | 719 | module_platform_driver(sst_platform_driver); |
d927fdae VK |
720 | |
721 | MODULE_DESCRIPTION("ASoC Intel(R) MID Platform driver"); | |
722 | MODULE_AUTHOR("Vinod Koul <vinod.koul@intel.com>"); | |
723 | MODULE_AUTHOR("Harsha Priya <priya.harsha@intel.com>"); | |
724 | MODULE_LICENSE("GPL v2"); | |
f5c6b2aa | 725 | MODULE_ALIAS("platform:sst-platform"); |