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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 | ||
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, | |
a126021d | 124 | enum rsnd_mod_type type, |
cdaa3cdf KM |
125 | int id) |
126 | { | |
127 | mod->priv = priv; | |
128 | mod->id = id; | |
129 | mod->ops = ops; | |
a126021d | 130 | mod->type = type; |
cdaa3cdf KM |
131 | } |
132 | ||
0a4d94c0 KM |
133 | /* |
134 | * rsnd_dma functions | |
135 | */ | |
f5cab3b8 | 136 | static void __rsnd_dma_start(struct rsnd_dma *dma); |
0a4d94c0 KM |
137 | static void rsnd_dma_continue(struct rsnd_dma *dma) |
138 | { | |
139 | /* push next A or B plane */ | |
140 | dma->submit_loop = 1; | |
141 | schedule_work(&dma->work); | |
142 | } | |
143 | ||
144 | void rsnd_dma_start(struct rsnd_dma *dma) | |
145 | { | |
146 | /* push both A and B plane*/ | |
4686a0ad | 147 | dma->offset = 0; |
0a4d94c0 | 148 | dma->submit_loop = 2; |
f5cab3b8 | 149 | __rsnd_dma_start(dma); |
0a4d94c0 KM |
150 | } |
151 | ||
152 | void rsnd_dma_stop(struct rsnd_dma *dma) | |
153 | { | |
154 | dma->submit_loop = 0; | |
155 | cancel_work_sync(&dma->work); | |
156 | dmaengine_terminate_all(dma->chan); | |
157 | } | |
158 | ||
159 | static void rsnd_dma_complete(void *data) | |
160 | { | |
161 | struct rsnd_dma *dma = (struct rsnd_dma *)data; | |
4686a0ad | 162 | struct rsnd_mod *mod = rsnd_dma_to_mod(dma); |
9b5ab573 | 163 | struct rsnd_priv *priv = rsnd_mod_to_priv(rsnd_dma_to_mod(dma)); |
4686a0ad | 164 | struct rsnd_dai_stream *io = rsnd_mod_to_io(mod); |
0a4d94c0 KM |
165 | unsigned long flags; |
166 | ||
167 | rsnd_lock(priv, flags); | |
168 | ||
4686a0ad KM |
169 | /* |
170 | * Renesas sound Gen1 needs 1 DMAC, | |
171 | * Gen2 needs 2 DMAC. | |
172 | * In Gen2 case, it are Audio-DMAC, and Audio-DMAC-peri-peri. | |
173 | * But, Audio-DMAC-peri-peri doesn't have interrupt, | |
174 | * and this driver is assuming that here. | |
175 | * | |
176 | * If Audio-DMAC-peri-peri has interrpt, | |
177 | * rsnd_dai_pointer_update() will be called twice, | |
178 | * ant it will breaks io->byte_pos | |
179 | */ | |
180 | ||
181 | rsnd_dai_pointer_update(io, io->byte_per_period); | |
0a4d94c0 KM |
182 | |
183 | if (dma->submit_loop) | |
184 | rsnd_dma_continue(dma); | |
185 | ||
186 | rsnd_unlock(priv, flags); | |
187 | } | |
188 | ||
f5cab3b8 | 189 | static void __rsnd_dma_start(struct rsnd_dma *dma) |
0a4d94c0 | 190 | { |
4686a0ad KM |
191 | struct rsnd_mod *mod = rsnd_dma_to_mod(dma); |
192 | struct rsnd_priv *priv = rsnd_mod_to_priv(mod); | |
193 | struct rsnd_dai_stream *io = rsnd_mod_to_io(mod); | |
194 | struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io); | |
0a4d94c0 KM |
195 | struct device *dev = rsnd_priv_to_dev(priv); |
196 | struct dma_async_tx_descriptor *desc; | |
197 | dma_addr_t buf; | |
4686a0ad | 198 | size_t len = io->byte_per_period; |
0a4d94c0 KM |
199 | int i; |
200 | ||
201 | for (i = 0; i < dma->submit_loop; i++) { | |
202 | ||
4686a0ad KM |
203 | buf = runtime->dma_addr + |
204 | rsnd_dai_pointer_offset(io, dma->offset + len); | |
205 | dma->offset = len; | |
0a4d94c0 KM |
206 | |
207 | desc = dmaengine_prep_slave_single( | |
208 | dma->chan, buf, len, dma->dir, | |
209 | DMA_PREP_INTERRUPT | DMA_CTRL_ACK); | |
210 | if (!desc) { | |
211 | dev_err(dev, "dmaengine_prep_slave_sg() fail\n"); | |
212 | return; | |
213 | } | |
214 | ||
215 | desc->callback = rsnd_dma_complete; | |
216 | desc->callback_param = dma; | |
217 | ||
218 | if (dmaengine_submit(desc) < 0) { | |
219 | dev_err(dev, "dmaengine_submit() fail\n"); | |
220 | return; | |
221 | } | |
222 | ||
a0d32bca | 223 | dma_async_issue_pending(dma->chan); |
0a4d94c0 | 224 | } |
0a4d94c0 KM |
225 | } |
226 | ||
f5cab3b8 KM |
227 | static void rsnd_dma_do_work(struct work_struct *work) |
228 | { | |
229 | struct rsnd_dma *dma = container_of(work, struct rsnd_dma, work); | |
230 | ||
231 | __rsnd_dma_start(dma); | |
232 | } | |
233 | ||
0a4d94c0 KM |
234 | int rsnd_dma_available(struct rsnd_dma *dma) |
235 | { | |
236 | return !!dma->chan; | |
237 | } | |
238 | ||
0a4d94c0 | 239 | int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma, |
4686a0ad | 240 | int is_play, int id) |
0a4d94c0 KM |
241 | { |
242 | struct device *dev = rsnd_priv_to_dev(priv); | |
9ade09d6 | 243 | struct dma_slave_config cfg; |
0a4d94c0 | 244 | dma_cap_mask_t mask; |
9ade09d6 | 245 | int ret; |
0a4d94c0 KM |
246 | |
247 | if (dma->chan) { | |
248 | dev_err(dev, "it already has dma channel\n"); | |
249 | return -EIO; | |
250 | } | |
251 | ||
252 | dma_cap_zero(mask); | |
253 | dma_cap_set(DMA_SLAVE, mask); | |
254 | ||
9ade09d6 KM |
255 | dma->chan = dma_request_slave_channel_compat(mask, shdma_chan_filter, |
256 | (void *)id, dev, | |
257 | is_play ? "tx" : "rx"); | |
0a4d94c0 KM |
258 | if (!dma->chan) { |
259 | dev_err(dev, "can't get dma channel\n"); | |
260 | return -EIO; | |
261 | } | |
262 | ||
9ade09d6 KM |
263 | cfg.slave_id = id; |
264 | cfg.dst_addr = 0; /* use default addr when playback */ | |
265 | cfg.src_addr = 0; /* use default addr when capture */ | |
266 | cfg.direction = is_play ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM; | |
267 | ||
268 | ret = dmaengine_slave_config(dma->chan, &cfg); | |
269 | if (ret < 0) | |
270 | goto rsnd_dma_init_err; | |
271 | ||
0a4d94c0 | 272 | dma->dir = is_play ? DMA_TO_DEVICE : DMA_FROM_DEVICE; |
0a4d94c0 KM |
273 | INIT_WORK(&dma->work, rsnd_dma_do_work); |
274 | ||
275 | return 0; | |
9ade09d6 KM |
276 | |
277 | rsnd_dma_init_err: | |
278 | rsnd_dma_quit(priv, dma); | |
279 | ||
280 | return ret; | |
0a4d94c0 KM |
281 | } |
282 | ||
283 | void rsnd_dma_quit(struct rsnd_priv *priv, | |
284 | struct rsnd_dma *dma) | |
285 | { | |
286 | if (dma->chan) | |
287 | dma_release_channel(dma->chan); | |
288 | ||
289 | dma->chan = NULL; | |
290 | } | |
291 | ||
1536a968 KM |
292 | /* |
293 | * rsnd_dai functions | |
294 | */ | |
d870a91e KM |
295 | #define __rsnd_mod_call(mod, func, rdai, io) \ |
296 | ({ \ | |
297 | struct rsnd_priv *priv = rsnd_mod_to_priv(mod); \ | |
298 | struct device *dev = rsnd_priv_to_dev(priv); \ | |
299 | dev_dbg(dev, "%s [%d] %s\n", \ | |
300 | rsnd_mod_name(mod), rsnd_mod_id(mod), #func); \ | |
301 | (mod)->ops->func(mod, rdai, io); \ | |
302 | }) | |
303 | ||
304 | #define rsnd_mod_call(mod, func, rdai, io) \ | |
305 | (!(mod) ? -ENODEV : \ | |
306 | !((mod)->ops->func) ? 0 : \ | |
307 | __rsnd_mod_call(mod, func, (rdai), (io))) | |
308 | ||
309 | #define rsnd_dai_call(rdai, io, fn) \ | |
310 | ({ \ | |
a126021d KM |
311 | struct rsnd_mod *mod; \ |
312 | int ret = 0, i; \ | |
313 | for (i = 0; i < RSND_MOD_MAX; i++) { \ | |
314 | mod = (io)->mod[i]; \ | |
315 | if (!mod) \ | |
316 | continue; \ | |
d870a91e KM |
317 | ret = rsnd_mod_call(mod, fn, (rdai), (io)); \ |
318 | if (ret < 0) \ | |
319 | break; \ | |
320 | } \ | |
321 | ret; \ | |
cdaa3cdf KM |
322 | }) |
323 | ||
a126021d | 324 | static int rsnd_dai_connect(struct rsnd_mod *mod, |
9bfed6cf | 325 | struct rsnd_dai_stream *io) |
cdaa3cdf | 326 | { |
6020779b | 327 | if (!mod) |
cdaa3cdf | 328 | return -EIO; |
cdaa3cdf | 329 | |
a126021d | 330 | if (io->mod[mod->type]) { |
6020779b KM |
331 | struct rsnd_priv *priv = rsnd_mod_to_priv(mod); |
332 | struct device *dev = rsnd_priv_to_dev(priv); | |
333 | ||
cdaa3cdf KM |
334 | dev_err(dev, "%s%d is not empty\n", |
335 | rsnd_mod_name(mod), | |
336 | rsnd_mod_id(mod)); | |
337 | return -EIO; | |
338 | } | |
339 | ||
a126021d | 340 | io->mod[mod->type] = mod; |
4686a0ad | 341 | mod->io = io; |
cdaa3cdf KM |
342 | |
343 | return 0; | |
344 | } | |
345 | ||
a126021d | 346 | static int rsnd_dai_disconnect(struct rsnd_mod *mod, struct rsnd_dai_stream *io) |
cdaa3cdf | 347 | { |
a126021d | 348 | io->mod[mod->type] = NULL; |
4686a0ad | 349 | mod->io = NULL; |
cdaa3cdf KM |
350 | |
351 | return 0; | |
352 | } | |
353 | ||
4b4dab82 KM |
354 | int rsnd_dai_id(struct rsnd_priv *priv, struct rsnd_dai *rdai) |
355 | { | |
356 | int id = rdai - priv->rdai; | |
357 | ||
ecba9e72 | 358 | if ((id < 0) || (id >= rsnd_rdai_nr(priv))) |
4b4dab82 KM |
359 | return -EINVAL; |
360 | ||
361 | return id; | |
362 | } | |
363 | ||
1536a968 KM |
364 | struct rsnd_dai *rsnd_dai_get(struct rsnd_priv *priv, int id) |
365 | { | |
ecba9e72 | 366 | if ((id < 0) || (id >= rsnd_rdai_nr(priv))) |
2192f81c KM |
367 | return NULL; |
368 | ||
1536a968 KM |
369 | return priv->rdai + id; |
370 | } | |
371 | ||
372 | static struct rsnd_dai *rsnd_dai_to_rdai(struct snd_soc_dai *dai) | |
373 | { | |
374 | struct rsnd_priv *priv = snd_soc_dai_get_drvdata(dai); | |
375 | ||
376 | return rsnd_dai_get(priv, dai->id); | |
377 | } | |
378 | ||
379 | int rsnd_dai_is_play(struct rsnd_dai *rdai, struct rsnd_dai_stream *io) | |
380 | { | |
381 | return &rdai->playback == io; | |
382 | } | |
383 | ||
384 | /* | |
385 | * rsnd_soc_dai functions | |
386 | */ | |
387 | int rsnd_dai_pointer_offset(struct rsnd_dai_stream *io, int additional) | |
388 | { | |
389 | struct snd_pcm_substream *substream = io->substream; | |
390 | struct snd_pcm_runtime *runtime = substream->runtime; | |
391 | int pos = io->byte_pos + additional; | |
392 | ||
393 | pos %= (runtime->periods * io->byte_per_period); | |
394 | ||
395 | return pos; | |
396 | } | |
397 | ||
398 | void rsnd_dai_pointer_update(struct rsnd_dai_stream *io, int byte) | |
399 | { | |
400 | io->byte_pos += byte; | |
401 | ||
402 | if (io->byte_pos >= io->next_period_byte) { | |
403 | struct snd_pcm_substream *substream = io->substream; | |
404 | struct snd_pcm_runtime *runtime = substream->runtime; | |
405 | ||
406 | io->period_pos++; | |
407 | io->next_period_byte += io->byte_per_period; | |
408 | ||
409 | if (io->period_pos >= runtime->periods) { | |
410 | io->byte_pos = 0; | |
411 | io->period_pos = 0; | |
412 | io->next_period_byte = io->byte_per_period; | |
413 | } | |
414 | ||
415 | snd_pcm_period_elapsed(substream); | |
416 | } | |
417 | } | |
418 | ||
419 | static int rsnd_dai_stream_init(struct rsnd_dai_stream *io, | |
420 | struct snd_pcm_substream *substream) | |
421 | { | |
422 | struct snd_pcm_runtime *runtime = substream->runtime; | |
423 | ||
1536a968 KM |
424 | io->substream = substream; |
425 | io->byte_pos = 0; | |
426 | io->period_pos = 0; | |
427 | io->byte_per_period = runtime->period_size * | |
428 | runtime->channels * | |
429 | samples_to_bytes(runtime, 1); | |
430 | io->next_period_byte = io->byte_per_period; | |
431 | ||
432 | return 0; | |
433 | } | |
434 | ||
435 | static | |
436 | struct snd_soc_dai *rsnd_substream_to_dai(struct snd_pcm_substream *substream) | |
437 | { | |
438 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
439 | ||
440 | return rtd->cpu_dai; | |
441 | } | |
442 | ||
443 | static | |
444 | struct rsnd_dai_stream *rsnd_rdai_to_io(struct rsnd_dai *rdai, | |
445 | struct snd_pcm_substream *substream) | |
446 | { | |
447 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
448 | return &rdai->playback; | |
449 | else | |
450 | return &rdai->capture; | |
451 | } | |
452 | ||
453 | static int rsnd_soc_dai_trigger(struct snd_pcm_substream *substream, int cmd, | |
454 | struct snd_soc_dai *dai) | |
455 | { | |
456 | struct rsnd_priv *priv = snd_soc_dai_get_drvdata(dai); | |
457 | struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); | |
458 | struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream); | |
4b4dab82 KM |
459 | struct rsnd_mod *mod = rsnd_ssi_mod_get_frm_dai(priv, |
460 | rsnd_dai_id(priv, rdai), | |
461 | rsnd_dai_is_play(rdai, io)); | |
462 | int ssi_id = rsnd_mod_id(mod); | |
1536a968 KM |
463 | int ret; |
464 | unsigned long flags; | |
465 | ||
466 | rsnd_lock(priv, flags); | |
467 | ||
468 | switch (cmd) { | |
469 | case SNDRV_PCM_TRIGGER_START: | |
470 | ret = rsnd_dai_stream_init(io, substream); | |
471 | if (ret < 0) | |
472 | goto dai_trigger_end; | |
473 | ||
474 | ret = rsnd_platform_call(priv, dai, start, ssi_id); | |
475 | if (ret < 0) | |
476 | goto dai_trigger_end; | |
477 | ||
cdaa3cdf KM |
478 | ret = rsnd_dai_call(rdai, io, init); |
479 | if (ret < 0) | |
480 | goto dai_trigger_end; | |
481 | ||
482 | ret = rsnd_dai_call(rdai, io, start); | |
483 | if (ret < 0) | |
484 | goto dai_trigger_end; | |
1536a968 KM |
485 | break; |
486 | case SNDRV_PCM_TRIGGER_STOP: | |
cdaa3cdf KM |
487 | ret = rsnd_dai_call(rdai, io, stop); |
488 | if (ret < 0) | |
489 | goto dai_trigger_end; | |
490 | ||
491 | ret = rsnd_dai_call(rdai, io, quit); | |
492 | if (ret < 0) | |
493 | goto dai_trigger_end; | |
494 | ||
3337744a KM |
495 | ret = rsnd_platform_call(priv, dai, stop, ssi_id); |
496 | if (ret < 0) | |
497 | goto dai_trigger_end; | |
1536a968 KM |
498 | break; |
499 | default: | |
500 | ret = -EINVAL; | |
501 | } | |
502 | ||
503 | dai_trigger_end: | |
504 | rsnd_unlock(priv, flags); | |
505 | ||
506 | return ret; | |
507 | } | |
508 | ||
509 | static int rsnd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
510 | { | |
511 | struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); | |
512 | ||
513 | /* set master/slave audio interface */ | |
514 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
515 | case SND_SOC_DAIFMT_CBM_CFM: | |
516 | rdai->clk_master = 1; | |
517 | break; | |
518 | case SND_SOC_DAIFMT_CBS_CFS: | |
519 | rdai->clk_master = 0; | |
520 | break; | |
521 | default: | |
522 | return -EINVAL; | |
523 | } | |
524 | ||
525 | /* set clock inversion */ | |
526 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
527 | case SND_SOC_DAIFMT_NB_IF: | |
528 | rdai->bit_clk_inv = 0; | |
529 | rdai->frm_clk_inv = 1; | |
530 | break; | |
531 | case SND_SOC_DAIFMT_IB_NF: | |
532 | rdai->bit_clk_inv = 1; | |
533 | rdai->frm_clk_inv = 0; | |
534 | break; | |
535 | case SND_SOC_DAIFMT_IB_IF: | |
536 | rdai->bit_clk_inv = 1; | |
537 | rdai->frm_clk_inv = 1; | |
538 | break; | |
539 | case SND_SOC_DAIFMT_NB_NF: | |
540 | default: | |
541 | rdai->bit_clk_inv = 0; | |
542 | rdai->frm_clk_inv = 0; | |
543 | break; | |
544 | } | |
545 | ||
546 | /* set format */ | |
547 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
548 | case SND_SOC_DAIFMT_I2S: | |
549 | rdai->sys_delay = 0; | |
550 | rdai->data_alignment = 0; | |
551 | break; | |
552 | case SND_SOC_DAIFMT_LEFT_J: | |
553 | rdai->sys_delay = 1; | |
554 | rdai->data_alignment = 0; | |
555 | break; | |
556 | case SND_SOC_DAIFMT_RIGHT_J: | |
557 | rdai->sys_delay = 1; | |
558 | rdai->data_alignment = 1; | |
559 | break; | |
560 | } | |
561 | ||
562 | return 0; | |
563 | } | |
564 | ||
565 | static const struct snd_soc_dai_ops rsnd_soc_dai_ops = { | |
566 | .trigger = rsnd_soc_dai_trigger, | |
567 | .set_fmt = rsnd_soc_dai_set_fmt, | |
568 | }; | |
569 | ||
9bfed6cf KM |
570 | static int rsnd_path_init(struct rsnd_priv *priv, |
571 | struct rsnd_dai *rdai, | |
572 | struct rsnd_dai_stream *io) | |
573 | { | |
574 | struct rsnd_mod *mod; | |
575 | int ret; | |
576 | int id; | |
577 | ||
578 | /* | |
579 | * Gen1 is created by SRU/SSI, and this SRU is base module of | |
580 | * Gen2's SCU/SSIU/SSI. (Gen2 SCU/SSIU came from SRU) | |
581 | * | |
582 | * Easy image is.. | |
583 | * Gen1 SRU = Gen2 SCU + SSIU + etc | |
584 | * | |
585 | * Gen2 SCU path is very flexible, but, Gen1 SRU (SCU parts) is | |
586 | * using fixed path. | |
587 | * | |
588 | * Then, SSI id = SCU id here | |
589 | */ | |
590 | /* get SSI's ID */ | |
591 | mod = rsnd_ssi_mod_get_frm_dai(priv, | |
592 | rsnd_dai_id(priv, rdai), | |
593 | rsnd_dai_is_play(rdai, io)); | |
594 | if (!mod) | |
595 | return 0; | |
596 | id = rsnd_mod_id(mod); | |
597 | ret = 0; | |
598 | ||
599 | /* SCU */ | |
600 | mod = rsnd_scu_mod_get(priv, id); | |
601 | if (mod) { | |
a126021d | 602 | ret = rsnd_dai_connect(mod, io); |
9bfed6cf KM |
603 | if (ret < 0) |
604 | return ret; | |
605 | } | |
606 | ||
607 | /* SSI */ | |
608 | mod = rsnd_ssi_mod_get(priv, id); | |
609 | if (mod) { | |
a126021d | 610 | ret = rsnd_dai_connect(mod, io); |
9bfed6cf KM |
611 | if (ret < 0) |
612 | return ret; | |
613 | } | |
614 | ||
615 | return ret; | |
616 | } | |
617 | ||
618 | static int rsnd_path_exit(struct rsnd_priv *priv, | |
619 | struct rsnd_dai *rdai, | |
620 | struct rsnd_dai_stream *io) | |
621 | { | |
a126021d KM |
622 | struct rsnd_mod *mod; |
623 | int ret = 0, i; | |
9bfed6cf KM |
624 | |
625 | /* | |
626 | * remove all mod from rdai | |
627 | */ | |
a126021d KM |
628 | for (i = 0; i < RSND_MOD_MAX; i++) { |
629 | mod = io->mod[i]; | |
630 | if (!mod) | |
631 | continue; | |
632 | ret |= rsnd_dai_disconnect(mod, io); | |
633 | } | |
9bfed6cf KM |
634 | |
635 | return ret; | |
636 | } | |
637 | ||
1536a968 | 638 | static int rsnd_dai_probe(struct platform_device *pdev, |
1536a968 KM |
639 | struct rsnd_priv *priv) |
640 | { | |
641 | struct snd_soc_dai_driver *drv; | |
642 | struct rsnd_dai *rdai; | |
4b4dab82 | 643 | struct rsnd_mod *pmod, *cmod; |
1536a968 | 644 | struct device *dev = rsnd_priv_to_dev(priv); |
4b4dab82 KM |
645 | int dai_nr; |
646 | int i; | |
647 | ||
648 | /* get max dai nr */ | |
649 | for (dai_nr = 0; dai_nr < 32; dai_nr++) { | |
650 | pmod = rsnd_ssi_mod_get_frm_dai(priv, dai_nr, 1); | |
651 | cmod = rsnd_ssi_mod_get_frm_dai(priv, dai_nr, 0); | |
652 | ||
653 | if (!pmod && !cmod) | |
654 | break; | |
655 | } | |
656 | ||
657 | if (!dai_nr) { | |
658 | dev_err(dev, "no dai\n"); | |
659 | return -EIO; | |
660 | } | |
1536a968 KM |
661 | |
662 | drv = devm_kzalloc(dev, sizeof(*drv) * dai_nr, GFP_KERNEL); | |
663 | rdai = devm_kzalloc(dev, sizeof(*rdai) * dai_nr, GFP_KERNEL); | |
664 | if (!drv || !rdai) { | |
665 | dev_err(dev, "dai allocate failed\n"); | |
666 | return -ENOMEM; | |
667 | } | |
668 | ||
ecba9e72 | 669 | priv->rdai_nr = dai_nr; |
49848073 KM |
670 | priv->daidrv = drv; |
671 | priv->rdai = rdai; | |
672 | ||
1536a968 | 673 | for (i = 0; i < dai_nr; i++) { |
1536a968 | 674 | |
4b4dab82 KM |
675 | pmod = rsnd_ssi_mod_get_frm_dai(priv, i, 1); |
676 | cmod = rsnd_ssi_mod_get_frm_dai(priv, i, 0); | |
1536a968 KM |
677 | |
678 | /* | |
679 | * init rsnd_dai | |
680 | */ | |
1536a968 KM |
681 | snprintf(rdai[i].name, RSND_DAI_NAME_SIZE, "rsnd-dai.%d", i); |
682 | ||
683 | /* | |
684 | * init snd_soc_dai_driver | |
685 | */ | |
686 | drv[i].name = rdai[i].name; | |
687 | drv[i].ops = &rsnd_soc_dai_ops; | |
4b4dab82 | 688 | if (pmod) { |
1536a968 KM |
689 | drv[i].playback.rates = RSND_RATES; |
690 | drv[i].playback.formats = RSND_FMTS; | |
691 | drv[i].playback.channels_min = 2; | |
692 | drv[i].playback.channels_max = 2; | |
9bfed6cf | 693 | rsnd_path_init(priv, &rdai[i], &rdai[i].playback); |
1536a968 | 694 | } |
4b4dab82 | 695 | if (cmod) { |
1536a968 KM |
696 | drv[i].capture.rates = RSND_RATES; |
697 | drv[i].capture.formats = RSND_FMTS; | |
698 | drv[i].capture.channels_min = 2; | |
699 | drv[i].capture.channels_max = 2; | |
9bfed6cf | 700 | rsnd_path_init(priv, &rdai[i], &rdai[i].capture); |
1536a968 KM |
701 | } |
702 | ||
4b4dab82 KM |
703 | dev_dbg(dev, "%s (%s/%s)\n", rdai[i].name, |
704 | pmod ? "play" : " -- ", | |
705 | cmod ? "capture" : " -- "); | |
1536a968 KM |
706 | } |
707 | ||
1536a968 KM |
708 | return 0; |
709 | } | |
710 | ||
711 | static void rsnd_dai_remove(struct platform_device *pdev, | |
712 | struct rsnd_priv *priv) | |
713 | { | |
9bfed6cf KM |
714 | struct rsnd_dai *rdai; |
715 | int i; | |
716 | ||
717 | for (i = 0; i < rsnd_rdai_nr(priv); i++) { | |
718 | rdai = rsnd_dai_get(priv, i); | |
719 | rsnd_path_exit(priv, rdai, &rdai->playback); | |
720 | rsnd_path_exit(priv, rdai, &rdai->capture); | |
721 | } | |
1536a968 KM |
722 | } |
723 | ||
724 | /* | |
725 | * pcm ops | |
726 | */ | |
727 | static struct snd_pcm_hardware rsnd_pcm_hardware = { | |
728 | .info = SNDRV_PCM_INFO_INTERLEAVED | | |
729 | SNDRV_PCM_INFO_MMAP | | |
730 | SNDRV_PCM_INFO_MMAP_VALID | | |
731 | SNDRV_PCM_INFO_PAUSE, | |
1536a968 KM |
732 | .buffer_bytes_max = 64 * 1024, |
733 | .period_bytes_min = 32, | |
734 | .period_bytes_max = 8192, | |
735 | .periods_min = 1, | |
736 | .periods_max = 32, | |
737 | .fifo_size = 256, | |
738 | }; | |
739 | ||
740 | static int rsnd_pcm_open(struct snd_pcm_substream *substream) | |
741 | { | |
742 | struct snd_pcm_runtime *runtime = substream->runtime; | |
743 | int ret = 0; | |
744 | ||
745 | snd_soc_set_runtime_hwparams(substream, &rsnd_pcm_hardware); | |
746 | ||
747 | ret = snd_pcm_hw_constraint_integer(runtime, | |
748 | SNDRV_PCM_HW_PARAM_PERIODS); | |
749 | ||
750 | return ret; | |
751 | } | |
752 | ||
753 | static int rsnd_hw_params(struct snd_pcm_substream *substream, | |
754 | struct snd_pcm_hw_params *hw_params) | |
755 | { | |
756 | return snd_pcm_lib_malloc_pages(substream, | |
757 | params_buffer_bytes(hw_params)); | |
758 | } | |
759 | ||
760 | static snd_pcm_uframes_t rsnd_pointer(struct snd_pcm_substream *substream) | |
761 | { | |
762 | struct snd_pcm_runtime *runtime = substream->runtime; | |
763 | struct snd_soc_dai *dai = rsnd_substream_to_dai(substream); | |
764 | struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); | |
765 | struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream); | |
766 | ||
767 | return bytes_to_frames(runtime, io->byte_pos); | |
768 | } | |
769 | ||
770 | static struct snd_pcm_ops rsnd_pcm_ops = { | |
771 | .open = rsnd_pcm_open, | |
772 | .ioctl = snd_pcm_lib_ioctl, | |
773 | .hw_params = rsnd_hw_params, | |
774 | .hw_free = snd_pcm_lib_free_pages, | |
775 | .pointer = rsnd_pointer, | |
776 | }; | |
777 | ||
778 | /* | |
779 | * snd_soc_platform | |
780 | */ | |
781 | ||
782 | #define PREALLOC_BUFFER (32 * 1024) | |
783 | #define PREALLOC_BUFFER_MAX (32 * 1024) | |
784 | ||
785 | static int rsnd_pcm_new(struct snd_soc_pcm_runtime *rtd) | |
786 | { | |
787 | return snd_pcm_lib_preallocate_pages_for_all( | |
788 | rtd->pcm, | |
789 | SNDRV_DMA_TYPE_DEV, | |
790 | rtd->card->snd_card->dev, | |
791 | PREALLOC_BUFFER, PREALLOC_BUFFER_MAX); | |
792 | } | |
793 | ||
794 | static void rsnd_pcm_free(struct snd_pcm *pcm) | |
795 | { | |
796 | snd_pcm_lib_preallocate_free_for_all(pcm); | |
797 | } | |
798 | ||
799 | static struct snd_soc_platform_driver rsnd_soc_platform = { | |
800 | .ops = &rsnd_pcm_ops, | |
801 | .pcm_new = rsnd_pcm_new, | |
802 | .pcm_free = rsnd_pcm_free, | |
803 | }; | |
804 | ||
805 | static const struct snd_soc_component_driver rsnd_soc_component = { | |
806 | .name = "rsnd", | |
807 | }; | |
808 | ||
809 | /* | |
810 | * rsnd probe | |
811 | */ | |
812 | static int rsnd_probe(struct platform_device *pdev) | |
813 | { | |
814 | struct rcar_snd_info *info; | |
815 | struct rsnd_priv *priv; | |
816 | struct device *dev = &pdev->dev; | |
817 | int ret; | |
818 | ||
819 | info = pdev->dev.platform_data; | |
820 | if (!info) { | |
821 | dev_err(dev, "driver needs R-Car sound information\n"); | |
822 | return -ENODEV; | |
823 | } | |
824 | ||
825 | /* | |
826 | * init priv data | |
827 | */ | |
828 | priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); | |
829 | if (!priv) { | |
830 | dev_err(dev, "priv allocate failed\n"); | |
831 | return -ENODEV; | |
832 | } | |
833 | ||
834 | priv->dev = dev; | |
835 | priv->info = info; | |
836 | spin_lock_init(&priv->lock); | |
837 | ||
838 | /* | |
839 | * init each module | |
840 | */ | |
5da39cf3 | 841 | ret = rsnd_gen_probe(pdev, priv); |
106d2eff | 842 | if (ret) |
3337744a KM |
843 | return ret; |
844 | ||
5da39cf3 | 845 | ret = rsnd_ssi_probe(pdev, priv); |
106d2eff | 846 | if (ret) |
07539c1d KM |
847 | return ret; |
848 | ||
5da39cf3 | 849 | ret = rsnd_scu_probe(pdev, priv); |
106d2eff | 850 | if (ret) |
dfc9403b KM |
851 | return ret; |
852 | ||
5da39cf3 | 853 | ret = rsnd_adg_probe(pdev, priv); |
106d2eff | 854 | if (ret) |
ae5c3223 KM |
855 | return ret; |
856 | ||
5da39cf3 | 857 | ret = rsnd_dai_probe(pdev, priv); |
106d2eff | 858 | if (ret) |
4b4dab82 KM |
859 | return ret; |
860 | ||
1536a968 KM |
861 | /* |
862 | * asoc register | |
863 | */ | |
864 | ret = snd_soc_register_platform(dev, &rsnd_soc_platform); | |
865 | if (ret < 0) { | |
866 | dev_err(dev, "cannot snd soc register\n"); | |
867 | return ret; | |
868 | } | |
869 | ||
870 | ret = snd_soc_register_component(dev, &rsnd_soc_component, | |
ecba9e72 | 871 | priv->daidrv, rsnd_rdai_nr(priv)); |
1536a968 KM |
872 | if (ret < 0) { |
873 | dev_err(dev, "cannot snd dai register\n"); | |
874 | goto exit_snd_soc; | |
875 | } | |
876 | ||
877 | dev_set_drvdata(dev, priv); | |
878 | ||
879 | pm_runtime_enable(dev); | |
880 | ||
881 | dev_info(dev, "probed\n"); | |
882 | return ret; | |
883 | ||
884 | exit_snd_soc: | |
885 | snd_soc_unregister_platform(dev); | |
886 | ||
887 | return ret; | |
888 | } | |
889 | ||
890 | static int rsnd_remove(struct platform_device *pdev) | |
891 | { | |
892 | struct rsnd_priv *priv = dev_get_drvdata(&pdev->dev); | |
893 | ||
894 | pm_runtime_disable(&pdev->dev); | |
895 | ||
896 | /* | |
897 | * remove each module | |
898 | */ | |
ae5c3223 | 899 | rsnd_ssi_remove(pdev, priv); |
dfc9403b | 900 | rsnd_adg_remove(pdev, priv); |
07539c1d | 901 | rsnd_scu_remove(pdev, priv); |
1536a968 | 902 | rsnd_dai_remove(pdev, priv); |
3337744a | 903 | rsnd_gen_remove(pdev, priv); |
1536a968 KM |
904 | |
905 | return 0; | |
906 | } | |
907 | ||
908 | static struct platform_driver rsnd_driver = { | |
909 | .driver = { | |
910 | .name = "rcar_sound", | |
911 | }, | |
912 | .probe = rsnd_probe, | |
913 | .remove = rsnd_remove, | |
914 | }; | |
915 | module_platform_driver(rsnd_driver); | |
916 | ||
917 | MODULE_LICENSE("GPL"); | |
918 | MODULE_DESCRIPTION("Renesas R-Car audio driver"); | |
919 | MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>"); | |
920 | MODULE_ALIAS("platform:rcar-pcm-audio"); |