Commit | Line | Data |
---|---|---|
8cc72361 WYC |
1 | /** |
2 | * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved. | |
3 | * | |
4 | * This source file is released under GPL v2 license (no other versions). | |
5 | * See the COPYING file included in the main directory of this source | |
6 | * distribution for the license terms and conditions. | |
7 | * | |
8 | * @File ctpcm.c | |
9 | * | |
10 | * @Brief | |
11 | * This file contains the definition of the pcm device functions. | |
12 | * | |
13 | * @Author Liu Chun | |
14 | * @Date Apr 2 2008 | |
15 | * | |
16 | */ | |
17 | ||
18 | #include "ctpcm.h" | |
b7bbf876 | 19 | #include "cttimer.h" |
5a0e3ad6 | 20 | #include <linux/slab.h> |
8cc72361 WYC |
21 | #include <sound/pcm.h> |
22 | ||
23 | /* Hardware descriptions for playback */ | |
24 | static struct snd_pcm_hardware ct_pcm_playback_hw = { | |
25 | .info = (SNDRV_PCM_INFO_MMAP | | |
26 | SNDRV_PCM_INFO_INTERLEAVED | | |
27 | SNDRV_PCM_INFO_BLOCK_TRANSFER | | |
28 | SNDRV_PCM_INFO_MMAP_VALID | | |
29 | SNDRV_PCM_INFO_PAUSE), | |
30 | .formats = (SNDRV_PCM_FMTBIT_U8 | | |
8cc72361 | 31 | SNDRV_PCM_FMTBIT_S16_LE | |
8cc72361 | 32 | SNDRV_PCM_FMTBIT_S24_3LE | |
d2b9b96c TI |
33 | SNDRV_PCM_FMTBIT_S32_LE | |
34 | SNDRV_PCM_FMTBIT_FLOAT_LE), | |
8cc72361 WYC |
35 | .rates = (SNDRV_PCM_RATE_CONTINUOUS | |
36 | SNDRV_PCM_RATE_8000_192000), | |
37 | .rate_min = 8000, | |
38 | .rate_max = 192000, | |
39 | .channels_min = 1, | |
40 | .channels_max = 2, | |
41 | .buffer_bytes_max = (128*1024), | |
42 | .period_bytes_min = (64), | |
43 | .period_bytes_max = (128*1024), | |
775ffa1d | 44 | .periods_min = 2, |
8cc72361 WYC |
45 | .periods_max = 1024, |
46 | .fifo_size = 0, | |
47 | }; | |
48 | ||
49 | static struct snd_pcm_hardware ct_spdif_passthru_playback_hw = { | |
50 | .info = (SNDRV_PCM_INFO_MMAP | | |
51 | SNDRV_PCM_INFO_INTERLEAVED | | |
52 | SNDRV_PCM_INFO_BLOCK_TRANSFER | | |
53 | SNDRV_PCM_INFO_MMAP_VALID | | |
54 | SNDRV_PCM_INFO_PAUSE), | |
d2b9b96c | 55 | .formats = SNDRV_PCM_FMTBIT_S16_LE, |
8cc72361 WYC |
56 | .rates = (SNDRV_PCM_RATE_48000 | |
57 | SNDRV_PCM_RATE_44100 | | |
58 | SNDRV_PCM_RATE_32000), | |
59 | .rate_min = 32000, | |
60 | .rate_max = 48000, | |
61 | .channels_min = 2, | |
62 | .channels_max = 2, | |
63 | .buffer_bytes_max = (128*1024), | |
64 | .period_bytes_min = (64), | |
65 | .period_bytes_max = (128*1024), | |
775ffa1d | 66 | .periods_min = 2, |
8cc72361 WYC |
67 | .periods_max = 1024, |
68 | .fifo_size = 0, | |
69 | }; | |
70 | ||
71 | /* Hardware descriptions for capture */ | |
72 | static struct snd_pcm_hardware ct_pcm_capture_hw = { | |
73 | .info = (SNDRV_PCM_INFO_MMAP | | |
74 | SNDRV_PCM_INFO_INTERLEAVED | | |
75 | SNDRV_PCM_INFO_BLOCK_TRANSFER | | |
76 | SNDRV_PCM_INFO_PAUSE | | |
77 | SNDRV_PCM_INFO_MMAP_VALID), | |
78 | .formats = (SNDRV_PCM_FMTBIT_U8 | | |
8cc72361 | 79 | SNDRV_PCM_FMTBIT_S16_LE | |
8cc72361 | 80 | SNDRV_PCM_FMTBIT_S24_3LE | |
d2b9b96c TI |
81 | SNDRV_PCM_FMTBIT_S32_LE | |
82 | SNDRV_PCM_FMTBIT_FLOAT_LE), | |
8cc72361 WYC |
83 | .rates = (SNDRV_PCM_RATE_CONTINUOUS | |
84 | SNDRV_PCM_RATE_8000_96000), | |
85 | .rate_min = 8000, | |
86 | .rate_max = 96000, | |
87 | .channels_min = 1, | |
88 | .channels_max = 2, | |
89 | .buffer_bytes_max = (128*1024), | |
90 | .period_bytes_min = (384), | |
91 | .period_bytes_max = (64*1024), | |
92 | .periods_min = 2, | |
93 | .periods_max = 1024, | |
94 | .fifo_size = 0, | |
95 | }; | |
96 | ||
97 | static void ct_atc_pcm_interrupt(struct ct_atc_pcm *atc_pcm) | |
98 | { | |
99 | struct ct_atc_pcm *apcm = atc_pcm; | |
100 | ||
35ebf6e7 | 101 | if (!apcm->substream) |
8cc72361 WYC |
102 | return; |
103 | ||
104 | snd_pcm_period_elapsed(apcm->substream); | |
105 | } | |
106 | ||
107 | static void ct_atc_pcm_free_substream(struct snd_pcm_runtime *runtime) | |
108 | { | |
109 | struct ct_atc_pcm *apcm = runtime->private_data; | |
110 | struct ct_atc *atc = snd_pcm_substream_chip(apcm->substream); | |
111 | ||
112 | atc->pcm_release_resources(atc, apcm); | |
b7bbf876 | 113 | ct_timer_instance_free(apcm->timer); |
8cc72361 WYC |
114 | kfree(apcm); |
115 | runtime->private_data = NULL; | |
116 | } | |
117 | ||
118 | /* pcm playback operations */ | |
119 | static int ct_pcm_playback_open(struct snd_pcm_substream *substream) | |
120 | { | |
121 | struct ct_atc *atc = snd_pcm_substream_chip(substream); | |
122 | struct snd_pcm_runtime *runtime = substream->runtime; | |
123 | struct ct_atc_pcm *apcm; | |
124 | int err; | |
125 | ||
126 | apcm = kzalloc(sizeof(*apcm), GFP_KERNEL); | |
35ebf6e7 | 127 | if (!apcm) |
8cc72361 WYC |
128 | return -ENOMEM; |
129 | ||
8cc72361 WYC |
130 | apcm->substream = substream; |
131 | apcm->interrupt = ct_atc_pcm_interrupt; | |
8cc72361 WYC |
132 | if (IEC958 == substream->pcm->device) { |
133 | runtime->hw = ct_spdif_passthru_playback_hw; | |
134 | atc->spdif_out_passthru(atc, 1); | |
135 | } else { | |
136 | runtime->hw = ct_pcm_playback_hw; | |
137 | if (FRONT == substream->pcm->device) | |
138 | runtime->hw.channels_max = 8; | |
139 | } | |
140 | ||
141 | err = snd_pcm_hw_constraint_integer(runtime, | |
142 | SNDRV_PCM_HW_PARAM_PERIODS); | |
143 | if (err < 0) { | |
144 | kfree(apcm); | |
145 | return err; | |
146 | } | |
147 | err = snd_pcm_hw_constraint_minmax(runtime, | |
148 | SNDRV_PCM_HW_PARAM_BUFFER_BYTES, | |
149 | 1024, UINT_MAX); | |
150 | if (err < 0) { | |
151 | kfree(apcm); | |
152 | return err; | |
153 | } | |
154 | ||
b7bbf876 | 155 | apcm->timer = ct_timer_instance_new(atc->timer, apcm); |
fa2b30af JL |
156 | if (!apcm->timer) { |
157 | kfree(apcm); | |
b7bbf876 | 158 | return -ENOMEM; |
fa2b30af JL |
159 | } |
160 | runtime->private_data = apcm; | |
161 | runtime->private_free = ct_atc_pcm_free_substream; | |
b7bbf876 | 162 | |
8cc72361 WYC |
163 | return 0; |
164 | } | |
165 | ||
166 | static int ct_pcm_playback_close(struct snd_pcm_substream *substream) | |
167 | { | |
168 | struct ct_atc *atc = snd_pcm_substream_chip(substream); | |
169 | ||
170 | /* TODO: Notify mixer inactive. */ | |
171 | if (IEC958 == substream->pcm->device) | |
172 | atc->spdif_out_passthru(atc, 0); | |
173 | ||
174 | /* The ct_atc_pcm object will be freed by runtime->private_free */ | |
175 | ||
176 | return 0; | |
177 | } | |
178 | ||
179 | static int ct_pcm_hw_params(struct snd_pcm_substream *substream, | |
180 | struct snd_pcm_hw_params *hw_params) | |
181 | { | |
a5990dc5 TI |
182 | struct ct_atc *atc = snd_pcm_substream_chip(substream); |
183 | struct ct_atc_pcm *apcm = substream->runtime->private_data; | |
184 | int err; | |
185 | ||
186 | err = snd_pcm_lib_malloc_pages(substream, | |
8cc72361 | 187 | params_buffer_bytes(hw_params)); |
a5990dc5 TI |
188 | if (err < 0) |
189 | return err; | |
190 | /* clear previous resources */ | |
191 | atc->pcm_release_resources(atc, apcm); | |
192 | return err; | |
8cc72361 WYC |
193 | } |
194 | ||
195 | static int ct_pcm_hw_free(struct snd_pcm_substream *substream) | |
196 | { | |
a5990dc5 TI |
197 | struct ct_atc *atc = snd_pcm_substream_chip(substream); |
198 | struct ct_atc_pcm *apcm = substream->runtime->private_data; | |
199 | ||
200 | /* clear previous resources */ | |
201 | atc->pcm_release_resources(atc, apcm); | |
8cc72361 WYC |
202 | /* Free snd-allocated pages */ |
203 | return snd_pcm_lib_free_pages(substream); | |
204 | } | |
205 | ||
8cc72361 WYC |
206 | |
207 | static int ct_pcm_playback_prepare(struct snd_pcm_substream *substream) | |
208 | { | |
209 | int err; | |
210 | struct ct_atc *atc = snd_pcm_substream_chip(substream); | |
211 | struct snd_pcm_runtime *runtime = substream->runtime; | |
212 | struct ct_atc_pcm *apcm = runtime->private_data; | |
213 | ||
214 | if (IEC958 == substream->pcm->device) | |
215 | err = atc->spdif_passthru_playback_prepare(atc, apcm); | |
216 | else | |
217 | err = atc->pcm_playback_prepare(atc, apcm); | |
218 | ||
219 | if (err < 0) { | |
b3e0afe6 | 220 | printk(KERN_ERR "ctxfi: Preparing pcm playback failed!!!\n"); |
8cc72361 WYC |
221 | return err; |
222 | } | |
223 | ||
8cc72361 WYC |
224 | return 0; |
225 | } | |
226 | ||
227 | static int | |
228 | ct_pcm_playback_trigger(struct snd_pcm_substream *substream, int cmd) | |
229 | { | |
230 | struct ct_atc *atc = snd_pcm_substream_chip(substream); | |
231 | struct snd_pcm_runtime *runtime = substream->runtime; | |
232 | struct ct_atc_pcm *apcm = runtime->private_data; | |
233 | ||
234 | switch (cmd) { | |
235 | case SNDRV_PCM_TRIGGER_START: | |
236 | case SNDRV_PCM_TRIGGER_RESUME: | |
237 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
238 | atc->pcm_playback_start(atc, apcm); | |
8cc72361 WYC |
239 | break; |
240 | case SNDRV_PCM_TRIGGER_STOP: | |
241 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
242 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
8cc72361 WYC |
243 | atc->pcm_playback_stop(atc, apcm); |
244 | break; | |
245 | default: | |
246 | break; | |
247 | } | |
248 | ||
249 | return 0; | |
250 | } | |
251 | ||
252 | static snd_pcm_uframes_t | |
253 | ct_pcm_playback_pointer(struct snd_pcm_substream *substream) | |
254 | { | |
255 | unsigned long position; | |
256 | struct ct_atc *atc = snd_pcm_substream_chip(substream); | |
257 | struct snd_pcm_runtime *runtime = substream->runtime; | |
258 | struct ct_atc_pcm *apcm = runtime->private_data; | |
259 | ||
260 | /* Read out playback position */ | |
261 | position = atc->pcm_playback_position(atc, apcm); | |
262 | position = bytes_to_frames(runtime, position); | |
af8500bb TI |
263 | if (position >= runtime->buffer_size) |
264 | position = 0; | |
8cc72361 WYC |
265 | return position; |
266 | } | |
267 | ||
268 | /* pcm capture operations */ | |
269 | static int ct_pcm_capture_open(struct snd_pcm_substream *substream) | |
270 | { | |
271 | struct ct_atc *atc = snd_pcm_substream_chip(substream); | |
272 | struct snd_pcm_runtime *runtime = substream->runtime; | |
273 | struct ct_atc_pcm *apcm; | |
274 | int err; | |
275 | ||
276 | apcm = kzalloc(sizeof(*apcm), GFP_KERNEL); | |
35ebf6e7 | 277 | if (!apcm) |
8cc72361 WYC |
278 | return -ENOMEM; |
279 | ||
8cc72361 | 280 | apcm->started = 0; |
8cc72361 WYC |
281 | apcm->substream = substream; |
282 | apcm->interrupt = ct_atc_pcm_interrupt; | |
8cc72361 WYC |
283 | runtime->hw = ct_pcm_capture_hw; |
284 | runtime->hw.rate_max = atc->rsr * atc->msr; | |
285 | ||
286 | err = snd_pcm_hw_constraint_integer(runtime, | |
287 | SNDRV_PCM_HW_PARAM_PERIODS); | |
288 | if (err < 0) { | |
289 | kfree(apcm); | |
290 | return err; | |
291 | } | |
292 | err = snd_pcm_hw_constraint_minmax(runtime, | |
293 | SNDRV_PCM_HW_PARAM_BUFFER_BYTES, | |
294 | 1024, UINT_MAX); | |
295 | if (err < 0) { | |
296 | kfree(apcm); | |
297 | return err; | |
298 | } | |
299 | ||
b7bbf876 | 300 | apcm->timer = ct_timer_instance_new(atc->timer, apcm); |
fa2b30af JL |
301 | if (!apcm->timer) { |
302 | kfree(apcm); | |
b7bbf876 | 303 | return -ENOMEM; |
fa2b30af JL |
304 | } |
305 | runtime->private_data = apcm; | |
306 | runtime->private_free = ct_atc_pcm_free_substream; | |
b7bbf876 | 307 | |
8cc72361 WYC |
308 | return 0; |
309 | } | |
310 | ||
311 | static int ct_pcm_capture_close(struct snd_pcm_substream *substream) | |
312 | { | |
313 | /* The ct_atc_pcm object will be freed by runtime->private_free */ | |
314 | /* TODO: Notify mixer inactive. */ | |
315 | return 0; | |
316 | } | |
317 | ||
318 | static int ct_pcm_capture_prepare(struct snd_pcm_substream *substream) | |
319 | { | |
320 | int err; | |
321 | struct ct_atc *atc = snd_pcm_substream_chip(substream); | |
322 | struct snd_pcm_runtime *runtime = substream->runtime; | |
323 | struct ct_atc_pcm *apcm = runtime->private_data; | |
324 | ||
325 | err = atc->pcm_capture_prepare(atc, apcm); | |
326 | if (err < 0) { | |
b3e0afe6 | 327 | printk(KERN_ERR "ctxfi: Preparing pcm capture failed!!!\n"); |
8cc72361 WYC |
328 | return err; |
329 | } | |
330 | ||
8cc72361 WYC |
331 | return 0; |
332 | } | |
333 | ||
334 | static int | |
335 | ct_pcm_capture_trigger(struct snd_pcm_substream *substream, int cmd) | |
336 | { | |
337 | struct ct_atc *atc = snd_pcm_substream_chip(substream); | |
338 | struct snd_pcm_runtime *runtime = substream->runtime; | |
339 | struct ct_atc_pcm *apcm = runtime->private_data; | |
340 | ||
341 | switch (cmd) { | |
342 | case SNDRV_PCM_TRIGGER_START: | |
343 | atc->pcm_capture_start(atc, apcm); | |
8cc72361 WYC |
344 | break; |
345 | case SNDRV_PCM_TRIGGER_STOP: | |
8cc72361 WYC |
346 | atc->pcm_capture_stop(atc, apcm); |
347 | break; | |
348 | default: | |
8cc72361 WYC |
349 | atc->pcm_capture_stop(atc, apcm); |
350 | break; | |
351 | } | |
352 | ||
353 | return 0; | |
354 | } | |
355 | ||
356 | static snd_pcm_uframes_t | |
357 | ct_pcm_capture_pointer(struct snd_pcm_substream *substream) | |
358 | { | |
359 | unsigned long position; | |
360 | struct ct_atc *atc = snd_pcm_substream_chip(substream); | |
361 | struct snd_pcm_runtime *runtime = substream->runtime; | |
362 | struct ct_atc_pcm *apcm = runtime->private_data; | |
363 | ||
364 | /* Read out playback position */ | |
365 | position = atc->pcm_capture_position(atc, apcm); | |
366 | position = bytes_to_frames(runtime, position); | |
af8500bb TI |
367 | if (position >= runtime->buffer_size) |
368 | position = 0; | |
8cc72361 WYC |
369 | return position; |
370 | } | |
371 | ||
372 | /* PCM operators for playback */ | |
373 | static struct snd_pcm_ops ct_pcm_playback_ops = { | |
374 | .open = ct_pcm_playback_open, | |
375 | .close = ct_pcm_playback_close, | |
376 | .ioctl = snd_pcm_lib_ioctl, | |
377 | .hw_params = ct_pcm_hw_params, | |
378 | .hw_free = ct_pcm_hw_free, | |
379 | .prepare = ct_pcm_playback_prepare, | |
380 | .trigger = ct_pcm_playback_trigger, | |
381 | .pointer = ct_pcm_playback_pointer, | |
c76157d9 | 382 | .page = snd_pcm_sgbuf_ops_page, |
8cc72361 WYC |
383 | }; |
384 | ||
385 | /* PCM operators for capture */ | |
386 | static struct snd_pcm_ops ct_pcm_capture_ops = { | |
387 | .open = ct_pcm_capture_open, | |
388 | .close = ct_pcm_capture_close, | |
389 | .ioctl = snd_pcm_lib_ioctl, | |
390 | .hw_params = ct_pcm_hw_params, | |
391 | .hw_free = ct_pcm_hw_free, | |
392 | .prepare = ct_pcm_capture_prepare, | |
393 | .trigger = ct_pcm_capture_trigger, | |
394 | .pointer = ct_pcm_capture_pointer, | |
c76157d9 | 395 | .page = snd_pcm_sgbuf_ops_page, |
8cc72361 WYC |
396 | }; |
397 | ||
398 | /* Create ALSA pcm device */ | |
399 | int ct_alsa_pcm_create(struct ct_atc *atc, | |
400 | enum CTALSADEVS device, | |
401 | const char *device_name) | |
402 | { | |
403 | struct snd_pcm *pcm; | |
404 | int err; | |
405 | int playback_count, capture_count; | |
8cc72361 | 406 | |
391e6914 | 407 | playback_count = (IEC958 == device) ? 1 : 256; |
8cc72361 | 408 | capture_count = (FRONT == device) ? 1 : 0; |
8372d498 | 409 | err = snd_pcm_new(atc->card, "ctxfi", device, |
8cc72361 WYC |
410 | playback_count, capture_count, &pcm); |
411 | if (err < 0) { | |
b3e0afe6 | 412 | printk(KERN_ERR "ctxfi: snd_pcm_new failed!! Err=%d\n", err); |
8cc72361 WYC |
413 | return err; |
414 | } | |
415 | ||
416 | pcm->private_data = atc; | |
417 | pcm->info_flags = 0; | |
418 | pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX; | |
8372d498 | 419 | strlcpy(pcm->name, device_name, sizeof(pcm->name)); |
8cc72361 WYC |
420 | |
421 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &ct_pcm_playback_ops); | |
422 | ||
423 | if (FRONT == device) | |
424 | snd_pcm_set_ops(pcm, | |
425 | SNDRV_PCM_STREAM_CAPTURE, &ct_pcm_capture_ops); | |
426 | ||
c76157d9 | 427 | snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG, |
8cc72361 WYC |
428 | snd_dma_pci_data(atc->pci), 128*1024, 128*1024); |
429 | ||
29959a09 WYC |
430 | #ifdef CONFIG_PM |
431 | atc->pcms[device] = pcm; | |
432 | #endif | |
433 | ||
8cc72361 WYC |
434 | return 0; |
435 | } |