Commit | Line | Data |
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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 | ||
389933d9 KM |
110 | #define rsnd_is_enable_path(io, name) \ |
111 | ((io)->info ? (io)->info->name : NULL) | |
112 | #define rsnd_info_id(priv, io, name) \ | |
113 | ((io)->info->name - priv->info->name##_info) | |
114 | ||
cdaa3cdf KM |
115 | /* |
116 | * rsnd_mod functions | |
117 | */ | |
118 | char *rsnd_mod_name(struct rsnd_mod *mod) | |
119 | { | |
120 | if (!mod || !mod->ops) | |
121 | return "unknown"; | |
122 | ||
123 | return mod->ops->name; | |
124 | } | |
125 | ||
126 | void rsnd_mod_init(struct rsnd_priv *priv, | |
127 | struct rsnd_mod *mod, | |
128 | struct rsnd_mod_ops *ops, | |
a126021d | 129 | enum rsnd_mod_type type, |
cdaa3cdf KM |
130 | int id) |
131 | { | |
132 | mod->priv = priv; | |
133 | mod->id = id; | |
134 | mod->ops = ops; | |
a126021d | 135 | mod->type = type; |
cdaa3cdf KM |
136 | } |
137 | ||
0a4d94c0 KM |
138 | /* |
139 | * rsnd_dma functions | |
140 | */ | |
f5cab3b8 | 141 | static void __rsnd_dma_start(struct rsnd_dma *dma); |
0a4d94c0 KM |
142 | static void rsnd_dma_continue(struct rsnd_dma *dma) |
143 | { | |
144 | /* push next A or B plane */ | |
145 | dma->submit_loop = 1; | |
146 | schedule_work(&dma->work); | |
147 | } | |
148 | ||
149 | void rsnd_dma_start(struct rsnd_dma *dma) | |
150 | { | |
151 | /* push both A and B plane*/ | |
4686a0ad | 152 | dma->offset = 0; |
0a4d94c0 | 153 | dma->submit_loop = 2; |
f5cab3b8 | 154 | __rsnd_dma_start(dma); |
0a4d94c0 KM |
155 | } |
156 | ||
157 | void rsnd_dma_stop(struct rsnd_dma *dma) | |
158 | { | |
159 | dma->submit_loop = 0; | |
160 | cancel_work_sync(&dma->work); | |
161 | dmaengine_terminate_all(dma->chan); | |
162 | } | |
163 | ||
164 | static void rsnd_dma_complete(void *data) | |
165 | { | |
166 | struct rsnd_dma *dma = (struct rsnd_dma *)data; | |
4686a0ad | 167 | struct rsnd_mod *mod = rsnd_dma_to_mod(dma); |
9b5ab573 | 168 | struct rsnd_priv *priv = rsnd_mod_to_priv(rsnd_dma_to_mod(dma)); |
4686a0ad | 169 | struct rsnd_dai_stream *io = rsnd_mod_to_io(mod); |
0a4d94c0 KM |
170 | unsigned long flags; |
171 | ||
172 | rsnd_lock(priv, flags); | |
173 | ||
4686a0ad KM |
174 | /* |
175 | * Renesas sound Gen1 needs 1 DMAC, | |
176 | * Gen2 needs 2 DMAC. | |
177 | * In Gen2 case, it are Audio-DMAC, and Audio-DMAC-peri-peri. | |
178 | * But, Audio-DMAC-peri-peri doesn't have interrupt, | |
179 | * and this driver is assuming that here. | |
180 | * | |
181 | * If Audio-DMAC-peri-peri has interrpt, | |
182 | * rsnd_dai_pointer_update() will be called twice, | |
183 | * ant it will breaks io->byte_pos | |
184 | */ | |
185 | ||
186 | rsnd_dai_pointer_update(io, io->byte_per_period); | |
0a4d94c0 KM |
187 | |
188 | if (dma->submit_loop) | |
189 | rsnd_dma_continue(dma); | |
190 | ||
191 | rsnd_unlock(priv, flags); | |
192 | } | |
193 | ||
f5cab3b8 | 194 | static void __rsnd_dma_start(struct rsnd_dma *dma) |
0a4d94c0 | 195 | { |
4686a0ad KM |
196 | struct rsnd_mod *mod = rsnd_dma_to_mod(dma); |
197 | struct rsnd_priv *priv = rsnd_mod_to_priv(mod); | |
198 | struct rsnd_dai_stream *io = rsnd_mod_to_io(mod); | |
199 | struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io); | |
0a4d94c0 KM |
200 | struct device *dev = rsnd_priv_to_dev(priv); |
201 | struct dma_async_tx_descriptor *desc; | |
202 | dma_addr_t buf; | |
4686a0ad | 203 | size_t len = io->byte_per_period; |
0a4d94c0 KM |
204 | int i; |
205 | ||
206 | for (i = 0; i < dma->submit_loop; i++) { | |
207 | ||
4686a0ad KM |
208 | buf = runtime->dma_addr + |
209 | rsnd_dai_pointer_offset(io, dma->offset + len); | |
210 | dma->offset = len; | |
0a4d94c0 KM |
211 | |
212 | desc = dmaengine_prep_slave_single( | |
213 | dma->chan, buf, len, dma->dir, | |
214 | DMA_PREP_INTERRUPT | DMA_CTRL_ACK); | |
215 | if (!desc) { | |
216 | dev_err(dev, "dmaengine_prep_slave_sg() fail\n"); | |
217 | return; | |
218 | } | |
219 | ||
220 | desc->callback = rsnd_dma_complete; | |
221 | desc->callback_param = dma; | |
222 | ||
223 | if (dmaengine_submit(desc) < 0) { | |
224 | dev_err(dev, "dmaengine_submit() fail\n"); | |
225 | return; | |
226 | } | |
227 | ||
a0d32bca | 228 | dma_async_issue_pending(dma->chan); |
0a4d94c0 | 229 | } |
0a4d94c0 KM |
230 | } |
231 | ||
f5cab3b8 KM |
232 | static void rsnd_dma_do_work(struct work_struct *work) |
233 | { | |
234 | struct rsnd_dma *dma = container_of(work, struct rsnd_dma, work); | |
235 | ||
236 | __rsnd_dma_start(dma); | |
237 | } | |
238 | ||
0a4d94c0 KM |
239 | int rsnd_dma_available(struct rsnd_dma *dma) |
240 | { | |
241 | return !!dma->chan; | |
242 | } | |
243 | ||
0a4d94c0 | 244 | int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma, |
4686a0ad | 245 | int is_play, int id) |
0a4d94c0 KM |
246 | { |
247 | struct device *dev = rsnd_priv_to_dev(priv); | |
9ade09d6 | 248 | struct dma_slave_config cfg; |
0a4d94c0 | 249 | dma_cap_mask_t mask; |
9ade09d6 | 250 | int ret; |
0a4d94c0 KM |
251 | |
252 | if (dma->chan) { | |
253 | dev_err(dev, "it already has dma channel\n"); | |
254 | return -EIO; | |
255 | } | |
256 | ||
257 | dma_cap_zero(mask); | |
258 | dma_cap_set(DMA_SLAVE, mask); | |
259 | ||
9ade09d6 KM |
260 | dma->chan = dma_request_slave_channel_compat(mask, shdma_chan_filter, |
261 | (void *)id, dev, | |
262 | is_play ? "tx" : "rx"); | |
0a4d94c0 KM |
263 | if (!dma->chan) { |
264 | dev_err(dev, "can't get dma channel\n"); | |
265 | return -EIO; | |
266 | } | |
267 | ||
9ade09d6 KM |
268 | cfg.slave_id = id; |
269 | cfg.dst_addr = 0; /* use default addr when playback */ | |
270 | cfg.src_addr = 0; /* use default addr when capture */ | |
271 | cfg.direction = is_play ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM; | |
272 | ||
273 | ret = dmaengine_slave_config(dma->chan, &cfg); | |
274 | if (ret < 0) | |
275 | goto rsnd_dma_init_err; | |
276 | ||
0a4d94c0 | 277 | dma->dir = is_play ? DMA_TO_DEVICE : DMA_FROM_DEVICE; |
0a4d94c0 KM |
278 | INIT_WORK(&dma->work, rsnd_dma_do_work); |
279 | ||
280 | return 0; | |
9ade09d6 KM |
281 | |
282 | rsnd_dma_init_err: | |
283 | rsnd_dma_quit(priv, dma); | |
284 | ||
285 | return ret; | |
0a4d94c0 KM |
286 | } |
287 | ||
288 | void rsnd_dma_quit(struct rsnd_priv *priv, | |
289 | struct rsnd_dma *dma) | |
290 | { | |
291 | if (dma->chan) | |
292 | dma_release_channel(dma->chan); | |
293 | ||
294 | dma->chan = NULL; | |
295 | } | |
296 | ||
1536a968 KM |
297 | /* |
298 | * rsnd_dai functions | |
299 | */ | |
d870a91e KM |
300 | #define __rsnd_mod_call(mod, func, rdai, io) \ |
301 | ({ \ | |
302 | struct rsnd_priv *priv = rsnd_mod_to_priv(mod); \ | |
303 | struct device *dev = rsnd_priv_to_dev(priv); \ | |
304 | dev_dbg(dev, "%s [%d] %s\n", \ | |
305 | rsnd_mod_name(mod), rsnd_mod_id(mod), #func); \ | |
306 | (mod)->ops->func(mod, rdai, io); \ | |
307 | }) | |
308 | ||
309 | #define rsnd_mod_call(mod, func, rdai, io) \ | |
310 | (!(mod) ? -ENODEV : \ | |
311 | !((mod)->ops->func) ? 0 : \ | |
312 | __rsnd_mod_call(mod, func, (rdai), (io))) | |
313 | ||
314 | #define rsnd_dai_call(rdai, io, fn) \ | |
315 | ({ \ | |
a126021d KM |
316 | struct rsnd_mod *mod; \ |
317 | int ret = 0, i; \ | |
318 | for (i = 0; i < RSND_MOD_MAX; i++) { \ | |
319 | mod = (io)->mod[i]; \ | |
320 | if (!mod) \ | |
321 | continue; \ | |
d870a91e KM |
322 | ret = rsnd_mod_call(mod, fn, (rdai), (io)); \ |
323 | if (ret < 0) \ | |
324 | break; \ | |
325 | } \ | |
326 | ret; \ | |
cdaa3cdf KM |
327 | }) |
328 | ||
a126021d | 329 | static int rsnd_dai_connect(struct rsnd_mod *mod, |
9bfed6cf | 330 | struct rsnd_dai_stream *io) |
cdaa3cdf | 331 | { |
6020779b | 332 | if (!mod) |
cdaa3cdf | 333 | return -EIO; |
cdaa3cdf | 334 | |
a126021d | 335 | if (io->mod[mod->type]) { |
6020779b KM |
336 | struct rsnd_priv *priv = rsnd_mod_to_priv(mod); |
337 | struct device *dev = rsnd_priv_to_dev(priv); | |
338 | ||
cdaa3cdf KM |
339 | dev_err(dev, "%s%d is not empty\n", |
340 | rsnd_mod_name(mod), | |
341 | rsnd_mod_id(mod)); | |
342 | return -EIO; | |
343 | } | |
344 | ||
a126021d | 345 | io->mod[mod->type] = mod; |
4686a0ad | 346 | mod->io = io; |
cdaa3cdf KM |
347 | |
348 | return 0; | |
349 | } | |
350 | ||
a126021d | 351 | static int rsnd_dai_disconnect(struct rsnd_mod *mod, struct rsnd_dai_stream *io) |
cdaa3cdf | 352 | { |
a126021d | 353 | io->mod[mod->type] = NULL; |
4686a0ad | 354 | mod->io = NULL; |
cdaa3cdf KM |
355 | |
356 | return 0; | |
357 | } | |
358 | ||
4b4dab82 KM |
359 | int rsnd_dai_id(struct rsnd_priv *priv, struct rsnd_dai *rdai) |
360 | { | |
361 | int id = rdai - priv->rdai; | |
362 | ||
ecba9e72 | 363 | if ((id < 0) || (id >= rsnd_rdai_nr(priv))) |
4b4dab82 KM |
364 | return -EINVAL; |
365 | ||
366 | return id; | |
367 | } | |
368 | ||
1536a968 KM |
369 | struct rsnd_dai *rsnd_dai_get(struct rsnd_priv *priv, int id) |
370 | { | |
ecba9e72 | 371 | if ((id < 0) || (id >= rsnd_rdai_nr(priv))) |
2192f81c KM |
372 | return NULL; |
373 | ||
1536a968 KM |
374 | return priv->rdai + id; |
375 | } | |
376 | ||
377 | static struct rsnd_dai *rsnd_dai_to_rdai(struct snd_soc_dai *dai) | |
378 | { | |
379 | struct rsnd_priv *priv = snd_soc_dai_get_drvdata(dai); | |
380 | ||
381 | return rsnd_dai_get(priv, dai->id); | |
382 | } | |
383 | ||
384 | int rsnd_dai_is_play(struct rsnd_dai *rdai, struct rsnd_dai_stream *io) | |
385 | { | |
386 | return &rdai->playback == io; | |
387 | } | |
388 | ||
389 | /* | |
390 | * rsnd_soc_dai functions | |
391 | */ | |
392 | int rsnd_dai_pointer_offset(struct rsnd_dai_stream *io, int additional) | |
393 | { | |
394 | struct snd_pcm_substream *substream = io->substream; | |
395 | struct snd_pcm_runtime *runtime = substream->runtime; | |
396 | int pos = io->byte_pos + additional; | |
397 | ||
398 | pos %= (runtime->periods * io->byte_per_period); | |
399 | ||
400 | return pos; | |
401 | } | |
402 | ||
403 | void rsnd_dai_pointer_update(struct rsnd_dai_stream *io, int byte) | |
404 | { | |
405 | io->byte_pos += byte; | |
406 | ||
407 | if (io->byte_pos >= io->next_period_byte) { | |
408 | struct snd_pcm_substream *substream = io->substream; | |
409 | struct snd_pcm_runtime *runtime = substream->runtime; | |
410 | ||
411 | io->period_pos++; | |
412 | io->next_period_byte += io->byte_per_period; | |
413 | ||
414 | if (io->period_pos >= runtime->periods) { | |
415 | io->byte_pos = 0; | |
416 | io->period_pos = 0; | |
417 | io->next_period_byte = io->byte_per_period; | |
418 | } | |
419 | ||
420 | snd_pcm_period_elapsed(substream); | |
421 | } | |
422 | } | |
423 | ||
424 | static int rsnd_dai_stream_init(struct rsnd_dai_stream *io, | |
425 | struct snd_pcm_substream *substream) | |
426 | { | |
427 | struct snd_pcm_runtime *runtime = substream->runtime; | |
428 | ||
1536a968 KM |
429 | io->substream = substream; |
430 | io->byte_pos = 0; | |
431 | io->period_pos = 0; | |
432 | io->byte_per_period = runtime->period_size * | |
433 | runtime->channels * | |
434 | samples_to_bytes(runtime, 1); | |
435 | io->next_period_byte = io->byte_per_period; | |
436 | ||
437 | return 0; | |
438 | } | |
439 | ||
440 | static | |
441 | struct snd_soc_dai *rsnd_substream_to_dai(struct snd_pcm_substream *substream) | |
442 | { | |
443 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
444 | ||
445 | return rtd->cpu_dai; | |
446 | } | |
447 | ||
448 | static | |
449 | struct rsnd_dai_stream *rsnd_rdai_to_io(struct rsnd_dai *rdai, | |
450 | struct snd_pcm_substream *substream) | |
451 | { | |
452 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
453 | return &rdai->playback; | |
454 | else | |
455 | return &rdai->capture; | |
456 | } | |
457 | ||
458 | static int rsnd_soc_dai_trigger(struct snd_pcm_substream *substream, int cmd, | |
459 | struct snd_soc_dai *dai) | |
460 | { | |
461 | struct rsnd_priv *priv = snd_soc_dai_get_drvdata(dai); | |
462 | struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); | |
463 | struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream); | |
4b4dab82 KM |
464 | struct rsnd_mod *mod = rsnd_ssi_mod_get_frm_dai(priv, |
465 | rsnd_dai_id(priv, rdai), | |
466 | rsnd_dai_is_play(rdai, io)); | |
467 | int ssi_id = rsnd_mod_id(mod); | |
1536a968 KM |
468 | int ret; |
469 | unsigned long flags; | |
470 | ||
471 | rsnd_lock(priv, flags); | |
472 | ||
473 | switch (cmd) { | |
474 | case SNDRV_PCM_TRIGGER_START: | |
475 | ret = rsnd_dai_stream_init(io, substream); | |
476 | if (ret < 0) | |
477 | goto dai_trigger_end; | |
478 | ||
479 | ret = rsnd_platform_call(priv, dai, start, ssi_id); | |
480 | if (ret < 0) | |
481 | goto dai_trigger_end; | |
482 | ||
cdaa3cdf KM |
483 | ret = rsnd_dai_call(rdai, io, init); |
484 | if (ret < 0) | |
485 | goto dai_trigger_end; | |
486 | ||
487 | ret = rsnd_dai_call(rdai, io, start); | |
488 | if (ret < 0) | |
489 | goto dai_trigger_end; | |
1536a968 KM |
490 | break; |
491 | case SNDRV_PCM_TRIGGER_STOP: | |
cdaa3cdf KM |
492 | ret = rsnd_dai_call(rdai, io, stop); |
493 | if (ret < 0) | |
494 | goto dai_trigger_end; | |
495 | ||
496 | ret = rsnd_dai_call(rdai, io, quit); | |
497 | if (ret < 0) | |
498 | goto dai_trigger_end; | |
499 | ||
3337744a KM |
500 | ret = rsnd_platform_call(priv, dai, stop, ssi_id); |
501 | if (ret < 0) | |
502 | goto dai_trigger_end; | |
1536a968 KM |
503 | break; |
504 | default: | |
505 | ret = -EINVAL; | |
506 | } | |
507 | ||
508 | dai_trigger_end: | |
509 | rsnd_unlock(priv, flags); | |
510 | ||
511 | return ret; | |
512 | } | |
513 | ||
514 | static int rsnd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
515 | { | |
516 | struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); | |
517 | ||
518 | /* set master/slave audio interface */ | |
519 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
520 | case SND_SOC_DAIFMT_CBM_CFM: | |
521 | rdai->clk_master = 1; | |
522 | break; | |
523 | case SND_SOC_DAIFMT_CBS_CFS: | |
524 | rdai->clk_master = 0; | |
525 | break; | |
526 | default: | |
527 | return -EINVAL; | |
528 | } | |
529 | ||
530 | /* set clock inversion */ | |
531 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
532 | case SND_SOC_DAIFMT_NB_IF: | |
533 | rdai->bit_clk_inv = 0; | |
534 | rdai->frm_clk_inv = 1; | |
535 | break; | |
536 | case SND_SOC_DAIFMT_IB_NF: | |
537 | rdai->bit_clk_inv = 1; | |
538 | rdai->frm_clk_inv = 0; | |
539 | break; | |
540 | case SND_SOC_DAIFMT_IB_IF: | |
541 | rdai->bit_clk_inv = 1; | |
542 | rdai->frm_clk_inv = 1; | |
543 | break; | |
544 | case SND_SOC_DAIFMT_NB_NF: | |
545 | default: | |
546 | rdai->bit_clk_inv = 0; | |
547 | rdai->frm_clk_inv = 0; | |
548 | break; | |
549 | } | |
550 | ||
551 | /* set format */ | |
552 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
553 | case SND_SOC_DAIFMT_I2S: | |
554 | rdai->sys_delay = 0; | |
555 | rdai->data_alignment = 0; | |
556 | break; | |
557 | case SND_SOC_DAIFMT_LEFT_J: | |
558 | rdai->sys_delay = 1; | |
559 | rdai->data_alignment = 0; | |
560 | break; | |
561 | case SND_SOC_DAIFMT_RIGHT_J: | |
562 | rdai->sys_delay = 1; | |
563 | rdai->data_alignment = 1; | |
564 | break; | |
565 | } | |
566 | ||
567 | return 0; | |
568 | } | |
569 | ||
570 | static const struct snd_soc_dai_ops rsnd_soc_dai_ops = { | |
571 | .trigger = rsnd_soc_dai_trigger, | |
572 | .set_fmt = rsnd_soc_dai_set_fmt, | |
573 | }; | |
574 | ||
9bfed6cf KM |
575 | static int rsnd_path_init(struct rsnd_priv *priv, |
576 | struct rsnd_dai *rdai, | |
577 | struct rsnd_dai_stream *io) | |
578 | { | |
579 | struct rsnd_mod *mod; | |
389933d9 | 580 | struct rsnd_dai_platform_info *dai_info = rdai->info; |
9bfed6cf | 581 | int ret; |
389933d9 KM |
582 | int ssi_id = -1; |
583 | int scu_id = -1; | |
9bfed6cf KM |
584 | |
585 | /* | |
586 | * Gen1 is created by SRU/SSI, and this SRU is base module of | |
587 | * Gen2's SCU/SSIU/SSI. (Gen2 SCU/SSIU came from SRU) | |
588 | * | |
589 | * Easy image is.. | |
590 | * Gen1 SRU = Gen2 SCU + SSIU + etc | |
591 | * | |
592 | * Gen2 SCU path is very flexible, but, Gen1 SRU (SCU parts) is | |
593 | * using fixed path. | |
9bfed6cf | 594 | */ |
389933d9 KM |
595 | if (dai_info) { |
596 | if (rsnd_is_enable_path(io, ssi)) | |
597 | ssi_id = rsnd_info_id(priv, io, ssi); | |
598 | if (rsnd_is_enable_path(io, scu)) | |
599 | scu_id = rsnd_info_id(priv, io, scu); | |
600 | } else { | |
601 | /* get SSI's ID */ | |
602 | mod = rsnd_ssi_mod_get_frm_dai(priv, | |
603 | rsnd_dai_id(priv, rdai), | |
604 | rsnd_dai_is_play(rdai, io)); | |
605 | if (!mod) | |
606 | return 0; | |
607 | ssi_id = scu_id = rsnd_mod_id(mod); | |
608 | } | |
609 | ||
9bfed6cf KM |
610 | ret = 0; |
611 | ||
612 | /* SCU */ | |
389933d9 KM |
613 | if (scu_id >= 0) { |
614 | mod = rsnd_scu_mod_get(priv, scu_id); | |
a126021d | 615 | ret = rsnd_dai_connect(mod, io); |
9bfed6cf KM |
616 | if (ret < 0) |
617 | return ret; | |
618 | } | |
619 | ||
620 | /* SSI */ | |
389933d9 KM |
621 | if (ssi_id >= 0) { |
622 | mod = rsnd_ssi_mod_get(priv, ssi_id); | |
a126021d | 623 | ret = rsnd_dai_connect(mod, io); |
9bfed6cf KM |
624 | if (ret < 0) |
625 | return ret; | |
626 | } | |
627 | ||
628 | return ret; | |
629 | } | |
630 | ||
631 | static int rsnd_path_exit(struct rsnd_priv *priv, | |
632 | struct rsnd_dai *rdai, | |
633 | struct rsnd_dai_stream *io) | |
634 | { | |
a126021d KM |
635 | struct rsnd_mod *mod; |
636 | int ret = 0, i; | |
9bfed6cf KM |
637 | |
638 | /* | |
639 | * remove all mod from rdai | |
640 | */ | |
a126021d KM |
641 | for (i = 0; i < RSND_MOD_MAX; i++) { |
642 | mod = io->mod[i]; | |
643 | if (!mod) | |
644 | continue; | |
645 | ret |= rsnd_dai_disconnect(mod, io); | |
646 | } | |
9bfed6cf KM |
647 | |
648 | return ret; | |
649 | } | |
650 | ||
1536a968 | 651 | static int rsnd_dai_probe(struct platform_device *pdev, |
1536a968 KM |
652 | struct rsnd_priv *priv) |
653 | { | |
654 | struct snd_soc_dai_driver *drv; | |
78f13d0c | 655 | struct rcar_snd_info *info = rsnd_priv_to_info(priv); |
1536a968 | 656 | struct rsnd_dai *rdai; |
4b4dab82 | 657 | struct rsnd_mod *pmod, *cmod; |
1536a968 | 658 | struct device *dev = rsnd_priv_to_dev(priv); |
78f13d0c | 659 | int dai_nr = info->dai_info_nr; |
4b4dab82 KM |
660 | int i; |
661 | ||
78f13d0c KM |
662 | /* |
663 | * dai_nr should be set via dai_info_nr, | |
664 | * but allow it to keeping compatible | |
665 | */ | |
666 | if (!dai_nr) { | |
667 | /* get max dai nr */ | |
668 | for (dai_nr = 0; dai_nr < 32; dai_nr++) { | |
669 | pmod = rsnd_ssi_mod_get_frm_dai(priv, dai_nr, 1); | |
670 | cmod = rsnd_ssi_mod_get_frm_dai(priv, dai_nr, 0); | |
4b4dab82 | 671 | |
78f13d0c KM |
672 | if (!pmod && !cmod) |
673 | break; | |
674 | } | |
4b4dab82 KM |
675 | } |
676 | ||
677 | if (!dai_nr) { | |
678 | dev_err(dev, "no dai\n"); | |
679 | return -EIO; | |
680 | } | |
1536a968 KM |
681 | |
682 | drv = devm_kzalloc(dev, sizeof(*drv) * dai_nr, GFP_KERNEL); | |
683 | rdai = devm_kzalloc(dev, sizeof(*rdai) * dai_nr, GFP_KERNEL); | |
684 | if (!drv || !rdai) { | |
685 | dev_err(dev, "dai allocate failed\n"); | |
686 | return -ENOMEM; | |
687 | } | |
688 | ||
ecba9e72 | 689 | priv->rdai_nr = dai_nr; |
49848073 KM |
690 | priv->daidrv = drv; |
691 | priv->rdai = rdai; | |
692 | ||
1536a968 | 693 | for (i = 0; i < dai_nr; i++) { |
78f13d0c KM |
694 | if (info->dai_info) |
695 | rdai[i].info = &info->dai_info[i]; | |
1536a968 | 696 | |
4b4dab82 KM |
697 | pmod = rsnd_ssi_mod_get_frm_dai(priv, i, 1); |
698 | cmod = rsnd_ssi_mod_get_frm_dai(priv, i, 0); | |
1536a968 KM |
699 | |
700 | /* | |
701 | * init rsnd_dai | |
702 | */ | |
1536a968 KM |
703 | snprintf(rdai[i].name, RSND_DAI_NAME_SIZE, "rsnd-dai.%d", i); |
704 | ||
705 | /* | |
706 | * init snd_soc_dai_driver | |
707 | */ | |
708 | drv[i].name = rdai[i].name; | |
709 | drv[i].ops = &rsnd_soc_dai_ops; | |
4b4dab82 | 710 | if (pmod) { |
1536a968 KM |
711 | drv[i].playback.rates = RSND_RATES; |
712 | drv[i].playback.formats = RSND_FMTS; | |
713 | drv[i].playback.channels_min = 2; | |
714 | drv[i].playback.channels_max = 2; | |
389933d9 KM |
715 | |
716 | if (info->dai_info) | |
717 | rdai[i].playback.info = &info->dai_info[i].playback; | |
9bfed6cf | 718 | rsnd_path_init(priv, &rdai[i], &rdai[i].playback); |
1536a968 | 719 | } |
4b4dab82 | 720 | if (cmod) { |
1536a968 KM |
721 | drv[i].capture.rates = RSND_RATES; |
722 | drv[i].capture.formats = RSND_FMTS; | |
723 | drv[i].capture.channels_min = 2; | |
724 | drv[i].capture.channels_max = 2; | |
389933d9 KM |
725 | |
726 | if (info->dai_info) | |
727 | rdai[i].capture.info = &info->dai_info[i].capture; | |
9bfed6cf | 728 | rsnd_path_init(priv, &rdai[i], &rdai[i].capture); |
1536a968 KM |
729 | } |
730 | ||
4b4dab82 KM |
731 | dev_dbg(dev, "%s (%s/%s)\n", rdai[i].name, |
732 | pmod ? "play" : " -- ", | |
733 | cmod ? "capture" : " -- "); | |
1536a968 KM |
734 | } |
735 | ||
1536a968 KM |
736 | return 0; |
737 | } | |
738 | ||
739 | static void rsnd_dai_remove(struct platform_device *pdev, | |
740 | struct rsnd_priv *priv) | |
741 | { | |
9bfed6cf KM |
742 | struct rsnd_dai *rdai; |
743 | int i; | |
744 | ||
745 | for (i = 0; i < rsnd_rdai_nr(priv); i++) { | |
746 | rdai = rsnd_dai_get(priv, i); | |
747 | rsnd_path_exit(priv, rdai, &rdai->playback); | |
748 | rsnd_path_exit(priv, rdai, &rdai->capture); | |
749 | } | |
1536a968 KM |
750 | } |
751 | ||
752 | /* | |
753 | * pcm ops | |
754 | */ | |
755 | static struct snd_pcm_hardware rsnd_pcm_hardware = { | |
756 | .info = SNDRV_PCM_INFO_INTERLEAVED | | |
757 | SNDRV_PCM_INFO_MMAP | | |
758 | SNDRV_PCM_INFO_MMAP_VALID | | |
759 | SNDRV_PCM_INFO_PAUSE, | |
1536a968 KM |
760 | .buffer_bytes_max = 64 * 1024, |
761 | .period_bytes_min = 32, | |
762 | .period_bytes_max = 8192, | |
763 | .periods_min = 1, | |
764 | .periods_max = 32, | |
765 | .fifo_size = 256, | |
766 | }; | |
767 | ||
768 | static int rsnd_pcm_open(struct snd_pcm_substream *substream) | |
769 | { | |
770 | struct snd_pcm_runtime *runtime = substream->runtime; | |
771 | int ret = 0; | |
772 | ||
773 | snd_soc_set_runtime_hwparams(substream, &rsnd_pcm_hardware); | |
774 | ||
775 | ret = snd_pcm_hw_constraint_integer(runtime, | |
776 | SNDRV_PCM_HW_PARAM_PERIODS); | |
777 | ||
778 | return ret; | |
779 | } | |
780 | ||
781 | static int rsnd_hw_params(struct snd_pcm_substream *substream, | |
782 | struct snd_pcm_hw_params *hw_params) | |
783 | { | |
784 | return snd_pcm_lib_malloc_pages(substream, | |
785 | params_buffer_bytes(hw_params)); | |
786 | } | |
787 | ||
788 | static snd_pcm_uframes_t rsnd_pointer(struct snd_pcm_substream *substream) | |
789 | { | |
790 | struct snd_pcm_runtime *runtime = substream->runtime; | |
791 | struct snd_soc_dai *dai = rsnd_substream_to_dai(substream); | |
792 | struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); | |
793 | struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream); | |
794 | ||
795 | return bytes_to_frames(runtime, io->byte_pos); | |
796 | } | |
797 | ||
798 | static struct snd_pcm_ops rsnd_pcm_ops = { | |
799 | .open = rsnd_pcm_open, | |
800 | .ioctl = snd_pcm_lib_ioctl, | |
801 | .hw_params = rsnd_hw_params, | |
802 | .hw_free = snd_pcm_lib_free_pages, | |
803 | .pointer = rsnd_pointer, | |
804 | }; | |
805 | ||
806 | /* | |
807 | * snd_soc_platform | |
808 | */ | |
809 | ||
810 | #define PREALLOC_BUFFER (32 * 1024) | |
811 | #define PREALLOC_BUFFER_MAX (32 * 1024) | |
812 | ||
813 | static int rsnd_pcm_new(struct snd_soc_pcm_runtime *rtd) | |
814 | { | |
815 | return snd_pcm_lib_preallocate_pages_for_all( | |
816 | rtd->pcm, | |
817 | SNDRV_DMA_TYPE_DEV, | |
818 | rtd->card->snd_card->dev, | |
819 | PREALLOC_BUFFER, PREALLOC_BUFFER_MAX); | |
820 | } | |
821 | ||
822 | static void rsnd_pcm_free(struct snd_pcm *pcm) | |
823 | { | |
824 | snd_pcm_lib_preallocate_free_for_all(pcm); | |
825 | } | |
826 | ||
827 | static struct snd_soc_platform_driver rsnd_soc_platform = { | |
828 | .ops = &rsnd_pcm_ops, | |
829 | .pcm_new = rsnd_pcm_new, | |
830 | .pcm_free = rsnd_pcm_free, | |
831 | }; | |
832 | ||
833 | static const struct snd_soc_component_driver rsnd_soc_component = { | |
834 | .name = "rsnd", | |
835 | }; | |
836 | ||
837 | /* | |
838 | * rsnd probe | |
839 | */ | |
840 | static int rsnd_probe(struct platform_device *pdev) | |
841 | { | |
842 | struct rcar_snd_info *info; | |
843 | struct rsnd_priv *priv; | |
844 | struct device *dev = &pdev->dev; | |
d1ac970f KM |
845 | int (*probe_func[])(struct platform_device *pdev, |
846 | struct rsnd_priv *priv) = { | |
847 | rsnd_gen_probe, | |
848 | rsnd_ssi_probe, | |
849 | rsnd_scu_probe, | |
850 | rsnd_adg_probe, | |
851 | rsnd_dai_probe, | |
852 | }; | |
853 | int ret, i; | |
1536a968 KM |
854 | |
855 | info = pdev->dev.platform_data; | |
856 | if (!info) { | |
857 | dev_err(dev, "driver needs R-Car sound information\n"); | |
858 | return -ENODEV; | |
859 | } | |
860 | ||
861 | /* | |
862 | * init priv data | |
863 | */ | |
864 | priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); | |
865 | if (!priv) { | |
866 | dev_err(dev, "priv allocate failed\n"); | |
867 | return -ENODEV; | |
868 | } | |
869 | ||
870 | priv->dev = dev; | |
871 | priv->info = info; | |
872 | spin_lock_init(&priv->lock); | |
873 | ||
874 | /* | |
875 | * init each module | |
876 | */ | |
d1ac970f KM |
877 | for (i = 0; i < ARRAY_SIZE(probe_func); i++) { |
878 | ret = probe_func[i](pdev, priv); | |
879 | if (ret) | |
880 | return ret; | |
881 | } | |
4b4dab82 | 882 | |
1536a968 KM |
883 | /* |
884 | * asoc register | |
885 | */ | |
886 | ret = snd_soc_register_platform(dev, &rsnd_soc_platform); | |
887 | if (ret < 0) { | |
888 | dev_err(dev, "cannot snd soc register\n"); | |
889 | return ret; | |
890 | } | |
891 | ||
892 | ret = snd_soc_register_component(dev, &rsnd_soc_component, | |
ecba9e72 | 893 | priv->daidrv, rsnd_rdai_nr(priv)); |
1536a968 KM |
894 | if (ret < 0) { |
895 | dev_err(dev, "cannot snd dai register\n"); | |
896 | goto exit_snd_soc; | |
897 | } | |
898 | ||
899 | dev_set_drvdata(dev, priv); | |
900 | ||
901 | pm_runtime_enable(dev); | |
902 | ||
903 | dev_info(dev, "probed\n"); | |
904 | return ret; | |
905 | ||
906 | exit_snd_soc: | |
907 | snd_soc_unregister_platform(dev); | |
908 | ||
909 | return ret; | |
910 | } | |
911 | ||
912 | static int rsnd_remove(struct platform_device *pdev) | |
913 | { | |
914 | struct rsnd_priv *priv = dev_get_drvdata(&pdev->dev); | |
915 | ||
916 | pm_runtime_disable(&pdev->dev); | |
917 | ||
918 | /* | |
919 | * remove each module | |
920 | */ | |
ae5c3223 | 921 | rsnd_ssi_remove(pdev, priv); |
dfc9403b | 922 | rsnd_adg_remove(pdev, priv); |
07539c1d | 923 | rsnd_scu_remove(pdev, priv); |
1536a968 | 924 | rsnd_dai_remove(pdev, priv); |
3337744a | 925 | rsnd_gen_remove(pdev, priv); |
1536a968 KM |
926 | |
927 | return 0; | |
928 | } | |
929 | ||
930 | static struct platform_driver rsnd_driver = { | |
931 | .driver = { | |
932 | .name = "rcar_sound", | |
933 | }, | |
934 | .probe = rsnd_probe, | |
935 | .remove = rsnd_remove, | |
936 | }; | |
937 | module_platform_driver(rsnd_driver); | |
938 | ||
939 | MODULE_LICENSE("GPL"); | |
940 | MODULE_DESCRIPTION("Renesas R-Car audio driver"); | |
941 | MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>"); | |
942 | MODULE_ALIAS("platform:rcar-pcm-audio"); |