Commit | Line | Data |
---|---|---|
1536a968 KM |
1 | /* |
2 | * Renesas R-Car SRU/SCU/SSIU/SSI support | |
3 | * | |
4 | * Copyright (C) 2013 Renesas Solutions Corp. | |
5 | * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | |
6 | * | |
7 | * Based on fsi.c | |
8 | * Kuninori Morimoto <morimoto.kuninori@renesas.com> | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License version 2 as | |
12 | * published by the Free Software Foundation. | |
13 | */ | |
14 | ||
15 | /* | |
16 | * Renesas R-Car sound device structure | |
17 | * | |
18 | * Gen1 | |
19 | * | |
20 | * SRU : Sound Routing Unit | |
21 | * - SRC : Sampling Rate Converter | |
22 | * - CMD | |
23 | * - CTU : Channel Count Conversion Unit | |
24 | * - MIX : Mixer | |
25 | * - DVC : Digital Volume and Mute Function | |
26 | * - SSI : Serial Sound Interface | |
27 | * | |
28 | * Gen2 | |
29 | * | |
30 | * SCU : Sampling Rate Converter Unit | |
31 | * - SRC : Sampling Rate Converter | |
32 | * - CMD | |
33 | * - CTU : Channel Count Conversion Unit | |
34 | * - MIX : Mixer | |
35 | * - DVC : Digital Volume and Mute Function | |
36 | * SSIU : Serial Sound Interface Unit | |
37 | * - SSI : Serial Sound Interface | |
38 | */ | |
39 | ||
40 | /* | |
41 | * driver data Image | |
42 | * | |
43 | * rsnd_priv | |
44 | * | | |
45 | * | ** this depends on Gen1/Gen2 | |
46 | * | | |
47 | * +- gen | |
48 | * | | |
49 | * | ** these depend on data path | |
50 | * | ** gen and platform data control it | |
51 | * | | |
52 | * +- rdai[0] | |
53 | * | | sru ssiu ssi | |
54 | * | +- playback -> [mod] -> [mod] -> [mod] -> ... | |
55 | * | | | |
56 | * | | sru ssiu ssi | |
57 | * | +- capture -> [mod] -> [mod] -> [mod] -> ... | |
58 | * | | |
59 | * +- rdai[1] | |
60 | * | | sru ssiu ssi | |
61 | * | +- playback -> [mod] -> [mod] -> [mod] -> ... | |
62 | * | | | |
63 | * | | sru ssiu ssi | |
64 | * | +- capture -> [mod] -> [mod] -> [mod] -> ... | |
65 | * ... | |
66 | * | | |
67 | * | ** these control ssi | |
68 | * | | |
69 | * +- ssi | |
70 | * | | | |
71 | * | +- ssi[0] | |
72 | * | +- ssi[1] | |
73 | * | +- ssi[2] | |
74 | * | ... | |
75 | * | | |
76 | * | ** these control scu | |
77 | * | | |
78 | * +- scu | |
79 | * | | |
80 | * +- scu[0] | |
81 | * +- scu[1] | |
82 | * +- scu[2] | |
83 | * ... | |
84 | * | |
85 | * | |
86 | * for_each_rsnd_dai(xx, priv, xx) | |
87 | * rdai[0] => rdai[1] => rdai[2] => ... | |
88 | * | |
89 | * for_each_rsnd_mod(xx, rdai, xx) | |
90 | * [mod] => [mod] => [mod] => ... | |
91 | * | |
92 | * rsnd_dai_call(xxx, fn ) | |
93 | * [mod]->fn() -> [mod]->fn() -> [mod]->fn()... | |
94 | * | |
95 | */ | |
96 | #include <linux/pm_runtime.h> | |
9ade09d6 | 97 | #include <linux/shdma-base.h> |
1536a968 KM |
98 | #include "rsnd.h" |
99 | ||
100 | #define RSND_RATES SNDRV_PCM_RATE_8000_96000 | |
101 | #define RSND_FMTS (SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE) | |
102 | ||
103 | /* | |
104 | * rsnd_platform functions | |
105 | */ | |
106 | #define rsnd_platform_call(priv, dai, func, param...) \ | |
740ad6c3 | 107 | (!(priv->info->func) ? 0 : \ |
1536a968 KM |
108 | priv->info->func(param)) |
109 | ||
cdaa3cdf KM |
110 | /* |
111 | * rsnd_mod functions | |
112 | */ | |
113 | char *rsnd_mod_name(struct rsnd_mod *mod) | |
114 | { | |
115 | if (!mod || !mod->ops) | |
116 | return "unknown"; | |
117 | ||
118 | return mod->ops->name; | |
119 | } | |
120 | ||
121 | void rsnd_mod_init(struct rsnd_priv *priv, | |
122 | struct rsnd_mod *mod, | |
123 | struct rsnd_mod_ops *ops, | |
124 | int id) | |
125 | { | |
126 | mod->priv = priv; | |
127 | mod->id = id; | |
128 | mod->ops = ops; | |
129 | INIT_LIST_HEAD(&mod->list); | |
130 | } | |
131 | ||
0a4d94c0 KM |
132 | /* |
133 | * rsnd_dma functions | |
134 | */ | |
135 | static void rsnd_dma_continue(struct rsnd_dma *dma) | |
136 | { | |
137 | /* push next A or B plane */ | |
138 | dma->submit_loop = 1; | |
139 | schedule_work(&dma->work); | |
140 | } | |
141 | ||
142 | void rsnd_dma_start(struct rsnd_dma *dma) | |
143 | { | |
144 | /* push both A and B plane*/ | |
145 | dma->submit_loop = 2; | |
146 | schedule_work(&dma->work); | |
147 | } | |
148 | ||
149 | void rsnd_dma_stop(struct rsnd_dma *dma) | |
150 | { | |
151 | dma->submit_loop = 0; | |
152 | cancel_work_sync(&dma->work); | |
153 | dmaengine_terminate_all(dma->chan); | |
154 | } | |
155 | ||
156 | static void rsnd_dma_complete(void *data) | |
157 | { | |
158 | struct rsnd_dma *dma = (struct rsnd_dma *)data; | |
159 | struct rsnd_priv *priv = dma->priv; | |
160 | unsigned long flags; | |
161 | ||
162 | rsnd_lock(priv, flags); | |
163 | ||
164 | dma->complete(dma); | |
165 | ||
166 | if (dma->submit_loop) | |
167 | rsnd_dma_continue(dma); | |
168 | ||
169 | rsnd_unlock(priv, flags); | |
170 | } | |
171 | ||
172 | static void rsnd_dma_do_work(struct work_struct *work) | |
173 | { | |
174 | struct rsnd_dma *dma = container_of(work, struct rsnd_dma, work); | |
175 | struct rsnd_priv *priv = dma->priv; | |
176 | struct device *dev = rsnd_priv_to_dev(priv); | |
177 | struct dma_async_tx_descriptor *desc; | |
178 | dma_addr_t buf; | |
179 | size_t len; | |
180 | int i; | |
181 | ||
182 | for (i = 0; i < dma->submit_loop; i++) { | |
183 | ||
184 | if (dma->inquiry(dma, &buf, &len) < 0) | |
185 | return; | |
186 | ||
187 | desc = dmaengine_prep_slave_single( | |
188 | dma->chan, buf, len, dma->dir, | |
189 | DMA_PREP_INTERRUPT | DMA_CTRL_ACK); | |
190 | if (!desc) { | |
191 | dev_err(dev, "dmaengine_prep_slave_sg() fail\n"); | |
192 | return; | |
193 | } | |
194 | ||
195 | desc->callback = rsnd_dma_complete; | |
196 | desc->callback_param = dma; | |
197 | ||
198 | if (dmaengine_submit(desc) < 0) { | |
199 | dev_err(dev, "dmaengine_submit() fail\n"); | |
200 | return; | |
201 | } | |
202 | ||
a0d32bca | 203 | dma_async_issue_pending(dma->chan); |
0a4d94c0 | 204 | } |
0a4d94c0 KM |
205 | } |
206 | ||
207 | int rsnd_dma_available(struct rsnd_dma *dma) | |
208 | { | |
209 | return !!dma->chan; | |
210 | } | |
211 | ||
0a4d94c0 KM |
212 | int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma, |
213 | int is_play, int id, | |
214 | int (*inquiry)(struct rsnd_dma *dma, | |
215 | dma_addr_t *buf, int *len), | |
216 | int (*complete)(struct rsnd_dma *dma)) | |
217 | { | |
218 | struct device *dev = rsnd_priv_to_dev(priv); | |
9ade09d6 | 219 | struct dma_slave_config cfg; |
0a4d94c0 | 220 | dma_cap_mask_t mask; |
9ade09d6 | 221 | int ret; |
0a4d94c0 KM |
222 | |
223 | if (dma->chan) { | |
224 | dev_err(dev, "it already has dma channel\n"); | |
225 | return -EIO; | |
226 | } | |
227 | ||
228 | dma_cap_zero(mask); | |
229 | dma_cap_set(DMA_SLAVE, mask); | |
230 | ||
9ade09d6 KM |
231 | dma->chan = dma_request_slave_channel_compat(mask, shdma_chan_filter, |
232 | (void *)id, dev, | |
233 | is_play ? "tx" : "rx"); | |
0a4d94c0 KM |
234 | if (!dma->chan) { |
235 | dev_err(dev, "can't get dma channel\n"); | |
236 | return -EIO; | |
237 | } | |
238 | ||
9ade09d6 KM |
239 | cfg.slave_id = id; |
240 | cfg.dst_addr = 0; /* use default addr when playback */ | |
241 | cfg.src_addr = 0; /* use default addr when capture */ | |
242 | cfg.direction = is_play ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM; | |
243 | ||
244 | ret = dmaengine_slave_config(dma->chan, &cfg); | |
245 | if (ret < 0) | |
246 | goto rsnd_dma_init_err; | |
247 | ||
0a4d94c0 KM |
248 | dma->dir = is_play ? DMA_TO_DEVICE : DMA_FROM_DEVICE; |
249 | dma->priv = priv; | |
250 | dma->inquiry = inquiry; | |
251 | dma->complete = complete; | |
252 | INIT_WORK(&dma->work, rsnd_dma_do_work); | |
253 | ||
254 | return 0; | |
9ade09d6 KM |
255 | |
256 | rsnd_dma_init_err: | |
257 | rsnd_dma_quit(priv, dma); | |
258 | ||
259 | return ret; | |
0a4d94c0 KM |
260 | } |
261 | ||
262 | void rsnd_dma_quit(struct rsnd_priv *priv, | |
263 | struct rsnd_dma *dma) | |
264 | { | |
265 | if (dma->chan) | |
266 | dma_release_channel(dma->chan); | |
267 | ||
268 | dma->chan = NULL; | |
269 | } | |
270 | ||
1536a968 KM |
271 | /* |
272 | * rsnd_dai functions | |
273 | */ | |
cdaa3cdf KM |
274 | #define rsnd_dai_call(rdai, io, fn) \ |
275 | ({ \ | |
276 | struct rsnd_mod *mod, *n; \ | |
277 | int ret = 0; \ | |
278 | for_each_rsnd_mod(mod, n, io) { \ | |
279 | ret = rsnd_mod_call(mod, fn, rdai, io); \ | |
280 | if (ret < 0) \ | |
281 | break; \ | |
282 | } \ | |
283 | ret; \ | |
284 | }) | |
285 | ||
286 | int rsnd_dai_connect(struct rsnd_dai *rdai, | |
287 | struct rsnd_mod *mod, | |
288 | struct rsnd_dai_stream *io) | |
289 | { | |
6020779b | 290 | if (!mod) |
cdaa3cdf | 291 | return -EIO; |
cdaa3cdf KM |
292 | |
293 | if (!list_empty(&mod->list)) { | |
6020779b KM |
294 | struct rsnd_priv *priv = rsnd_mod_to_priv(mod); |
295 | struct device *dev = rsnd_priv_to_dev(priv); | |
296 | ||
cdaa3cdf KM |
297 | dev_err(dev, "%s%d is not empty\n", |
298 | rsnd_mod_name(mod), | |
299 | rsnd_mod_id(mod)); | |
300 | return -EIO; | |
301 | } | |
302 | ||
303 | list_add_tail(&mod->list, &io->head); | |
304 | ||
305 | return 0; | |
306 | } | |
307 | ||
308 | int rsnd_dai_disconnect(struct rsnd_mod *mod) | |
309 | { | |
310 | list_del_init(&mod->list); | |
311 | ||
312 | return 0; | |
313 | } | |
314 | ||
4b4dab82 KM |
315 | int rsnd_dai_id(struct rsnd_priv *priv, struct rsnd_dai *rdai) |
316 | { | |
317 | int id = rdai - priv->rdai; | |
318 | ||
319 | if ((id < 0) || (id >= rsnd_dai_nr(priv))) | |
320 | return -EINVAL; | |
321 | ||
322 | return id; | |
323 | } | |
324 | ||
1536a968 KM |
325 | struct rsnd_dai *rsnd_dai_get(struct rsnd_priv *priv, int id) |
326 | { | |
2192f81c KM |
327 | if ((id < 0) || (id >= rsnd_dai_nr(priv))) |
328 | return NULL; | |
329 | ||
1536a968 KM |
330 | return priv->rdai + id; |
331 | } | |
332 | ||
333 | static struct rsnd_dai *rsnd_dai_to_rdai(struct snd_soc_dai *dai) | |
334 | { | |
335 | struct rsnd_priv *priv = snd_soc_dai_get_drvdata(dai); | |
336 | ||
337 | return rsnd_dai_get(priv, dai->id); | |
338 | } | |
339 | ||
340 | int rsnd_dai_is_play(struct rsnd_dai *rdai, struct rsnd_dai_stream *io) | |
341 | { | |
342 | return &rdai->playback == io; | |
343 | } | |
344 | ||
345 | /* | |
346 | * rsnd_soc_dai functions | |
347 | */ | |
348 | int rsnd_dai_pointer_offset(struct rsnd_dai_stream *io, int additional) | |
349 | { | |
350 | struct snd_pcm_substream *substream = io->substream; | |
351 | struct snd_pcm_runtime *runtime = substream->runtime; | |
352 | int pos = io->byte_pos + additional; | |
353 | ||
354 | pos %= (runtime->periods * io->byte_per_period); | |
355 | ||
356 | return pos; | |
357 | } | |
358 | ||
359 | void rsnd_dai_pointer_update(struct rsnd_dai_stream *io, int byte) | |
360 | { | |
361 | io->byte_pos += byte; | |
362 | ||
363 | if (io->byte_pos >= io->next_period_byte) { | |
364 | struct snd_pcm_substream *substream = io->substream; | |
365 | struct snd_pcm_runtime *runtime = substream->runtime; | |
366 | ||
367 | io->period_pos++; | |
368 | io->next_period_byte += io->byte_per_period; | |
369 | ||
370 | if (io->period_pos >= runtime->periods) { | |
371 | io->byte_pos = 0; | |
372 | io->period_pos = 0; | |
373 | io->next_period_byte = io->byte_per_period; | |
374 | } | |
375 | ||
376 | snd_pcm_period_elapsed(substream); | |
377 | } | |
378 | } | |
379 | ||
380 | static int rsnd_dai_stream_init(struct rsnd_dai_stream *io, | |
381 | struct snd_pcm_substream *substream) | |
382 | { | |
383 | struct snd_pcm_runtime *runtime = substream->runtime; | |
384 | ||
385 | if (!list_empty(&io->head)) | |
386 | return -EIO; | |
387 | ||
388 | INIT_LIST_HEAD(&io->head); | |
389 | io->substream = substream; | |
390 | io->byte_pos = 0; | |
391 | io->period_pos = 0; | |
392 | io->byte_per_period = runtime->period_size * | |
393 | runtime->channels * | |
394 | samples_to_bytes(runtime, 1); | |
395 | io->next_period_byte = io->byte_per_period; | |
396 | ||
397 | return 0; | |
398 | } | |
399 | ||
400 | static | |
401 | struct snd_soc_dai *rsnd_substream_to_dai(struct snd_pcm_substream *substream) | |
402 | { | |
403 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
404 | ||
405 | return rtd->cpu_dai; | |
406 | } | |
407 | ||
408 | static | |
409 | struct rsnd_dai_stream *rsnd_rdai_to_io(struct rsnd_dai *rdai, | |
410 | struct snd_pcm_substream *substream) | |
411 | { | |
412 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
413 | return &rdai->playback; | |
414 | else | |
415 | return &rdai->capture; | |
416 | } | |
417 | ||
418 | static int rsnd_soc_dai_trigger(struct snd_pcm_substream *substream, int cmd, | |
419 | struct snd_soc_dai *dai) | |
420 | { | |
421 | struct rsnd_priv *priv = snd_soc_dai_get_drvdata(dai); | |
422 | struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); | |
423 | struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream); | |
4b4dab82 KM |
424 | struct rsnd_mod *mod = rsnd_ssi_mod_get_frm_dai(priv, |
425 | rsnd_dai_id(priv, rdai), | |
426 | rsnd_dai_is_play(rdai, io)); | |
427 | int ssi_id = rsnd_mod_id(mod); | |
1536a968 KM |
428 | int ret; |
429 | unsigned long flags; | |
430 | ||
431 | rsnd_lock(priv, flags); | |
432 | ||
433 | switch (cmd) { | |
434 | case SNDRV_PCM_TRIGGER_START: | |
435 | ret = rsnd_dai_stream_init(io, substream); | |
436 | if (ret < 0) | |
437 | goto dai_trigger_end; | |
438 | ||
439 | ret = rsnd_platform_call(priv, dai, start, ssi_id); | |
440 | if (ret < 0) | |
441 | goto dai_trigger_end; | |
442 | ||
3337744a KM |
443 | ret = rsnd_gen_path_init(priv, rdai, io); |
444 | if (ret < 0) | |
445 | goto dai_trigger_end; | |
446 | ||
cdaa3cdf KM |
447 | ret = rsnd_dai_call(rdai, io, init); |
448 | if (ret < 0) | |
449 | goto dai_trigger_end; | |
450 | ||
451 | ret = rsnd_dai_call(rdai, io, start); | |
452 | if (ret < 0) | |
453 | goto dai_trigger_end; | |
1536a968 KM |
454 | break; |
455 | case SNDRV_PCM_TRIGGER_STOP: | |
cdaa3cdf KM |
456 | ret = rsnd_dai_call(rdai, io, stop); |
457 | if (ret < 0) | |
458 | goto dai_trigger_end; | |
459 | ||
460 | ret = rsnd_dai_call(rdai, io, quit); | |
461 | if (ret < 0) | |
462 | goto dai_trigger_end; | |
463 | ||
3337744a | 464 | ret = rsnd_gen_path_exit(priv, rdai, io); |
1536a968 KM |
465 | if (ret < 0) |
466 | goto dai_trigger_end; | |
467 | ||
3337744a KM |
468 | ret = rsnd_platform_call(priv, dai, stop, ssi_id); |
469 | if (ret < 0) | |
470 | goto dai_trigger_end; | |
1536a968 KM |
471 | break; |
472 | default: | |
473 | ret = -EINVAL; | |
474 | } | |
475 | ||
476 | dai_trigger_end: | |
477 | rsnd_unlock(priv, flags); | |
478 | ||
479 | return ret; | |
480 | } | |
481 | ||
482 | static int rsnd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
483 | { | |
484 | struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); | |
485 | ||
486 | /* set master/slave audio interface */ | |
487 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
488 | case SND_SOC_DAIFMT_CBM_CFM: | |
489 | rdai->clk_master = 1; | |
490 | break; | |
491 | case SND_SOC_DAIFMT_CBS_CFS: | |
492 | rdai->clk_master = 0; | |
493 | break; | |
494 | default: | |
495 | return -EINVAL; | |
496 | } | |
497 | ||
498 | /* set clock inversion */ | |
499 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
500 | case SND_SOC_DAIFMT_NB_IF: | |
501 | rdai->bit_clk_inv = 0; | |
502 | rdai->frm_clk_inv = 1; | |
503 | break; | |
504 | case SND_SOC_DAIFMT_IB_NF: | |
505 | rdai->bit_clk_inv = 1; | |
506 | rdai->frm_clk_inv = 0; | |
507 | break; | |
508 | case SND_SOC_DAIFMT_IB_IF: | |
509 | rdai->bit_clk_inv = 1; | |
510 | rdai->frm_clk_inv = 1; | |
511 | break; | |
512 | case SND_SOC_DAIFMT_NB_NF: | |
513 | default: | |
514 | rdai->bit_clk_inv = 0; | |
515 | rdai->frm_clk_inv = 0; | |
516 | break; | |
517 | } | |
518 | ||
519 | /* set format */ | |
520 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
521 | case SND_SOC_DAIFMT_I2S: | |
522 | rdai->sys_delay = 0; | |
523 | rdai->data_alignment = 0; | |
524 | break; | |
525 | case SND_SOC_DAIFMT_LEFT_J: | |
526 | rdai->sys_delay = 1; | |
527 | rdai->data_alignment = 0; | |
528 | break; | |
529 | case SND_SOC_DAIFMT_RIGHT_J: | |
530 | rdai->sys_delay = 1; | |
531 | rdai->data_alignment = 1; | |
532 | break; | |
533 | } | |
534 | ||
535 | return 0; | |
536 | } | |
537 | ||
538 | static const struct snd_soc_dai_ops rsnd_soc_dai_ops = { | |
539 | .trigger = rsnd_soc_dai_trigger, | |
540 | .set_fmt = rsnd_soc_dai_set_fmt, | |
541 | }; | |
542 | ||
543 | static int rsnd_dai_probe(struct platform_device *pdev, | |
544 | struct rcar_snd_info *info, | |
545 | struct rsnd_priv *priv) | |
546 | { | |
547 | struct snd_soc_dai_driver *drv; | |
548 | struct rsnd_dai *rdai; | |
4b4dab82 | 549 | struct rsnd_mod *pmod, *cmod; |
1536a968 | 550 | struct device *dev = rsnd_priv_to_dev(priv); |
4b4dab82 KM |
551 | int dai_nr; |
552 | int i; | |
553 | ||
554 | /* get max dai nr */ | |
555 | for (dai_nr = 0; dai_nr < 32; dai_nr++) { | |
556 | pmod = rsnd_ssi_mod_get_frm_dai(priv, dai_nr, 1); | |
557 | cmod = rsnd_ssi_mod_get_frm_dai(priv, dai_nr, 0); | |
558 | ||
559 | if (!pmod && !cmod) | |
560 | break; | |
561 | } | |
562 | ||
563 | if (!dai_nr) { | |
564 | dev_err(dev, "no dai\n"); | |
565 | return -EIO; | |
566 | } | |
1536a968 KM |
567 | |
568 | drv = devm_kzalloc(dev, sizeof(*drv) * dai_nr, GFP_KERNEL); | |
569 | rdai = devm_kzalloc(dev, sizeof(*rdai) * dai_nr, GFP_KERNEL); | |
570 | if (!drv || !rdai) { | |
571 | dev_err(dev, "dai allocate failed\n"); | |
572 | return -ENOMEM; | |
573 | } | |
574 | ||
575 | for (i = 0; i < dai_nr; i++) { | |
1536a968 | 576 | |
4b4dab82 KM |
577 | pmod = rsnd_ssi_mod_get_frm_dai(priv, i, 1); |
578 | cmod = rsnd_ssi_mod_get_frm_dai(priv, i, 0); | |
1536a968 KM |
579 | |
580 | /* | |
581 | * init rsnd_dai | |
582 | */ | |
583 | INIT_LIST_HEAD(&rdai[i].playback.head); | |
584 | INIT_LIST_HEAD(&rdai[i].capture.head); | |
585 | ||
1536a968 KM |
586 | snprintf(rdai[i].name, RSND_DAI_NAME_SIZE, "rsnd-dai.%d", i); |
587 | ||
588 | /* | |
589 | * init snd_soc_dai_driver | |
590 | */ | |
591 | drv[i].name = rdai[i].name; | |
592 | drv[i].ops = &rsnd_soc_dai_ops; | |
4b4dab82 | 593 | if (pmod) { |
1536a968 KM |
594 | drv[i].playback.rates = RSND_RATES; |
595 | drv[i].playback.formats = RSND_FMTS; | |
596 | drv[i].playback.channels_min = 2; | |
597 | drv[i].playback.channels_max = 2; | |
598 | } | |
4b4dab82 | 599 | if (cmod) { |
1536a968 KM |
600 | drv[i].capture.rates = RSND_RATES; |
601 | drv[i].capture.formats = RSND_FMTS; | |
602 | drv[i].capture.channels_min = 2; | |
603 | drv[i].capture.channels_max = 2; | |
604 | } | |
605 | ||
4b4dab82 KM |
606 | dev_dbg(dev, "%s (%s/%s)\n", rdai[i].name, |
607 | pmod ? "play" : " -- ", | |
608 | cmod ? "capture" : " -- "); | |
1536a968 KM |
609 | } |
610 | ||
611 | priv->dai_nr = dai_nr; | |
612 | priv->daidrv = drv; | |
613 | priv->rdai = rdai; | |
614 | ||
615 | return 0; | |
616 | } | |
617 | ||
618 | static void rsnd_dai_remove(struct platform_device *pdev, | |
619 | struct rsnd_priv *priv) | |
620 | { | |
621 | } | |
622 | ||
623 | /* | |
624 | * pcm ops | |
625 | */ | |
626 | static struct snd_pcm_hardware rsnd_pcm_hardware = { | |
627 | .info = SNDRV_PCM_INFO_INTERLEAVED | | |
628 | SNDRV_PCM_INFO_MMAP | | |
629 | SNDRV_PCM_INFO_MMAP_VALID | | |
630 | SNDRV_PCM_INFO_PAUSE, | |
1536a968 KM |
631 | .buffer_bytes_max = 64 * 1024, |
632 | .period_bytes_min = 32, | |
633 | .period_bytes_max = 8192, | |
634 | .periods_min = 1, | |
635 | .periods_max = 32, | |
636 | .fifo_size = 256, | |
637 | }; | |
638 | ||
639 | static int rsnd_pcm_open(struct snd_pcm_substream *substream) | |
640 | { | |
641 | struct snd_pcm_runtime *runtime = substream->runtime; | |
642 | int ret = 0; | |
643 | ||
644 | snd_soc_set_runtime_hwparams(substream, &rsnd_pcm_hardware); | |
645 | ||
646 | ret = snd_pcm_hw_constraint_integer(runtime, | |
647 | SNDRV_PCM_HW_PARAM_PERIODS); | |
648 | ||
649 | return ret; | |
650 | } | |
651 | ||
652 | static int rsnd_hw_params(struct snd_pcm_substream *substream, | |
653 | struct snd_pcm_hw_params *hw_params) | |
654 | { | |
655 | return snd_pcm_lib_malloc_pages(substream, | |
656 | params_buffer_bytes(hw_params)); | |
657 | } | |
658 | ||
659 | static snd_pcm_uframes_t rsnd_pointer(struct snd_pcm_substream *substream) | |
660 | { | |
661 | struct snd_pcm_runtime *runtime = substream->runtime; | |
662 | struct snd_soc_dai *dai = rsnd_substream_to_dai(substream); | |
663 | struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); | |
664 | struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream); | |
665 | ||
666 | return bytes_to_frames(runtime, io->byte_pos); | |
667 | } | |
668 | ||
669 | static struct snd_pcm_ops rsnd_pcm_ops = { | |
670 | .open = rsnd_pcm_open, | |
671 | .ioctl = snd_pcm_lib_ioctl, | |
672 | .hw_params = rsnd_hw_params, | |
673 | .hw_free = snd_pcm_lib_free_pages, | |
674 | .pointer = rsnd_pointer, | |
675 | }; | |
676 | ||
677 | /* | |
678 | * snd_soc_platform | |
679 | */ | |
680 | ||
681 | #define PREALLOC_BUFFER (32 * 1024) | |
682 | #define PREALLOC_BUFFER_MAX (32 * 1024) | |
683 | ||
684 | static int rsnd_pcm_new(struct snd_soc_pcm_runtime *rtd) | |
685 | { | |
686 | return snd_pcm_lib_preallocate_pages_for_all( | |
687 | rtd->pcm, | |
688 | SNDRV_DMA_TYPE_DEV, | |
689 | rtd->card->snd_card->dev, | |
690 | PREALLOC_BUFFER, PREALLOC_BUFFER_MAX); | |
691 | } | |
692 | ||
693 | static void rsnd_pcm_free(struct snd_pcm *pcm) | |
694 | { | |
695 | snd_pcm_lib_preallocate_free_for_all(pcm); | |
696 | } | |
697 | ||
698 | static struct snd_soc_platform_driver rsnd_soc_platform = { | |
699 | .ops = &rsnd_pcm_ops, | |
700 | .pcm_new = rsnd_pcm_new, | |
701 | .pcm_free = rsnd_pcm_free, | |
702 | }; | |
703 | ||
704 | static const struct snd_soc_component_driver rsnd_soc_component = { | |
705 | .name = "rsnd", | |
706 | }; | |
707 | ||
708 | /* | |
709 | * rsnd probe | |
710 | */ | |
711 | static int rsnd_probe(struct platform_device *pdev) | |
712 | { | |
713 | struct rcar_snd_info *info; | |
714 | struct rsnd_priv *priv; | |
715 | struct device *dev = &pdev->dev; | |
716 | int ret; | |
717 | ||
718 | info = pdev->dev.platform_data; | |
719 | if (!info) { | |
720 | dev_err(dev, "driver needs R-Car sound information\n"); | |
721 | return -ENODEV; | |
722 | } | |
723 | ||
724 | /* | |
725 | * init priv data | |
726 | */ | |
727 | priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); | |
728 | if (!priv) { | |
729 | dev_err(dev, "priv allocate failed\n"); | |
730 | return -ENODEV; | |
731 | } | |
732 | ||
733 | priv->dev = dev; | |
734 | priv->info = info; | |
735 | spin_lock_init(&priv->lock); | |
736 | ||
737 | /* | |
738 | * init each module | |
739 | */ | |
3337744a KM |
740 | ret = rsnd_gen_probe(pdev, info, priv); |
741 | if (ret < 0) | |
742 | return ret; | |
743 | ||
07539c1d KM |
744 | ret = rsnd_scu_probe(pdev, info, priv); |
745 | if (ret < 0) | |
746 | return ret; | |
747 | ||
dfc9403b KM |
748 | ret = rsnd_adg_probe(pdev, info, priv); |
749 | if (ret < 0) | |
750 | return ret; | |
751 | ||
ae5c3223 KM |
752 | ret = rsnd_ssi_probe(pdev, info, priv); |
753 | if (ret < 0) | |
754 | return ret; | |
755 | ||
4b4dab82 KM |
756 | ret = rsnd_dai_probe(pdev, info, priv); |
757 | if (ret < 0) | |
758 | return ret; | |
759 | ||
1536a968 KM |
760 | /* |
761 | * asoc register | |
762 | */ | |
763 | ret = snd_soc_register_platform(dev, &rsnd_soc_platform); | |
764 | if (ret < 0) { | |
765 | dev_err(dev, "cannot snd soc register\n"); | |
766 | return ret; | |
767 | } | |
768 | ||
769 | ret = snd_soc_register_component(dev, &rsnd_soc_component, | |
770 | priv->daidrv, rsnd_dai_nr(priv)); | |
771 | if (ret < 0) { | |
772 | dev_err(dev, "cannot snd dai register\n"); | |
773 | goto exit_snd_soc; | |
774 | } | |
775 | ||
776 | dev_set_drvdata(dev, priv); | |
777 | ||
778 | pm_runtime_enable(dev); | |
779 | ||
780 | dev_info(dev, "probed\n"); | |
781 | return ret; | |
782 | ||
783 | exit_snd_soc: | |
784 | snd_soc_unregister_platform(dev); | |
785 | ||
786 | return ret; | |
787 | } | |
788 | ||
789 | static int rsnd_remove(struct platform_device *pdev) | |
790 | { | |
791 | struct rsnd_priv *priv = dev_get_drvdata(&pdev->dev); | |
792 | ||
793 | pm_runtime_disable(&pdev->dev); | |
794 | ||
795 | /* | |
796 | * remove each module | |
797 | */ | |
ae5c3223 | 798 | rsnd_ssi_remove(pdev, priv); |
dfc9403b | 799 | rsnd_adg_remove(pdev, priv); |
07539c1d | 800 | rsnd_scu_remove(pdev, priv); |
1536a968 | 801 | rsnd_dai_remove(pdev, priv); |
3337744a | 802 | rsnd_gen_remove(pdev, priv); |
1536a968 KM |
803 | |
804 | return 0; | |
805 | } | |
806 | ||
807 | static struct platform_driver rsnd_driver = { | |
808 | .driver = { | |
809 | .name = "rcar_sound", | |
810 | }, | |
811 | .probe = rsnd_probe, | |
812 | .remove = rsnd_remove, | |
813 | }; | |
814 | module_platform_driver(rsnd_driver); | |
815 | ||
816 | MODULE_LICENSE("GPL"); | |
817 | MODULE_DESCRIPTION("Renesas R-Car audio driver"); | |
818 | MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>"); | |
819 | MODULE_ALIAS("platform:rcar-pcm-audio"); |