This source file includes following definitions.
- rsnd_mod_make_sure
- rsnd_mod_dma_req
- rsnd_mod_name
- rsnd_mod_get_status
- rsnd_mod_id_raw
- rsnd_mod_id
- rsnd_mod_id_sub
- rsnd_mod_init
- rsnd_mod_quit
- rsnd_mod_interrupt
- rsnd_io_is_working
- rsnd_runtime_channel_original_with_params
- rsnd_runtime_channel_after_ctu_with_params
- rsnd_channel_normalization
- rsnd_runtime_channel_for_ssi_with_params
- rsnd_runtime_is_multi_ssi
- rsnd_runtime_is_tdm
- rsnd_runtime_is_tdm_split
- rsnd_get_adinr_bit
- rsnd_get_dalign
- rsnd_get_busif_shift
- rsnd_mod_next
- rsnd_status_update
- rsnd_dai_connect
- rsnd_dai_disconnect
- rsnd_rdai_channels_ctrl
- rsnd_rdai_ssi_lane_ctrl
- rsnd_rdai_width_ctrl
- rsnd_rdai_get
- rsnd_daidrv_get
- rsnd_dai_to_rdai
- rsnd_dai_period_elapsed
- rsnd_dai_stream_init
- rsnd_dai_stream_quit
- rsnd_substream_to_dai
- rsnd_rdai_to_io
- rsnd_soc_dai_trigger
- rsnd_soc_dai_set_fmt
- rsnd_soc_set_dai_tdm_slot
- rsnd_soc_hw_rule
- rsnd_soc_hw_rule_rate
- rsnd_soc_hw_rule_channels
- rsnd_soc_dai_startup
- rsnd_soc_dai_shutdown
- rsnd_soc_dai_prepare
- rsnd_parse_tdm_split_mode
- rsnd_parse_connect_simple
- rsnd_parse_connect_graph
- rsnd_parse_connect_common
- rsnd_dai_of_node
- rsnd_preallocate_pages
- rsnd_pcm_new
- __rsnd_dai_probe
- rsnd_dai_probe
- rsnd_hw_params
- rsnd_hw_free
- rsnd_pointer
- rsnd_kctrl_info
- rsnd_kctrl_get
- rsnd_kctrl_put
- rsnd_kctrl_accept_anytime
- rsnd_kctrl_accept_runtime
- rsnd_kctrl_init_m
- rsnd_kctrl_init_s
- rsnd_kctrl_new
- rsnd_rdai_continuance_probe
- rsnd_probe
- rsnd_remove
- rsnd_suspend
- rsnd_resume
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101 #include <linux/pm_runtime.h>
102 #include "rsnd.h"
103
104 #define RSND_RATES SNDRV_PCM_RATE_8000_192000
105 #define RSND_FMTS (SNDRV_PCM_FMTBIT_S8 |\
106 SNDRV_PCM_FMTBIT_S16_LE |\
107 SNDRV_PCM_FMTBIT_S24_LE)
108
109 static const struct of_device_id rsnd_of_match[] = {
110 { .compatible = "renesas,rcar_sound-gen1", .data = (void *)RSND_GEN1 },
111 { .compatible = "renesas,rcar_sound-gen2", .data = (void *)RSND_GEN2 },
112 { .compatible = "renesas,rcar_sound-gen3", .data = (void *)RSND_GEN3 },
113
114 { .compatible = "renesas,rcar_sound-r8a77990", .data = (void *)(RSND_GEN3 | RSND_SOC_E) },
115 {},
116 };
117 MODULE_DEVICE_TABLE(of, rsnd_of_match);
118
119
120
121
122 void rsnd_mod_make_sure(struct rsnd_mod *mod, enum rsnd_mod_type type)
123 {
124 if (mod->type != type) {
125 struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
126 struct device *dev = rsnd_priv_to_dev(priv);
127
128 dev_warn(dev, "%s is not your expected module\n",
129 rsnd_mod_name(mod));
130 }
131 }
132
133 struct dma_chan *rsnd_mod_dma_req(struct rsnd_dai_stream *io,
134 struct rsnd_mod *mod)
135 {
136 if (!mod || !mod->ops || !mod->ops->dma_req)
137 return NULL;
138
139 return mod->ops->dma_req(io, mod);
140 }
141
142 #define MOD_NAME_NUM 5
143 #define MOD_NAME_SIZE 16
144 char *rsnd_mod_name(struct rsnd_mod *mod)
145 {
146 static char names[MOD_NAME_NUM][MOD_NAME_SIZE];
147 static int num;
148 char *name = names[num];
149
150 num++;
151 if (num >= MOD_NAME_NUM)
152 num = 0;
153
154
155
156
157
158
159 if ((mod)->ops->id_sub) {
160 snprintf(name, MOD_NAME_SIZE, "%s[%d%d]",
161 mod->ops->name,
162 rsnd_mod_id(mod),
163 rsnd_mod_id_sub(mod));
164 } else {
165 snprintf(name, MOD_NAME_SIZE, "%s[%d]",
166 mod->ops->name,
167 rsnd_mod_id(mod));
168 }
169
170 return name;
171 }
172
173 u32 *rsnd_mod_get_status(struct rsnd_mod *mod,
174 struct rsnd_dai_stream *io,
175 enum rsnd_mod_type type)
176 {
177 return &mod->status;
178 }
179
180 int rsnd_mod_id_raw(struct rsnd_mod *mod)
181 {
182 return mod->id;
183 }
184
185 int rsnd_mod_id(struct rsnd_mod *mod)
186 {
187 if ((mod)->ops->id)
188 return (mod)->ops->id(mod);
189
190 return rsnd_mod_id_raw(mod);
191 }
192
193 int rsnd_mod_id_sub(struct rsnd_mod *mod)
194 {
195 if ((mod)->ops->id_sub)
196 return (mod)->ops->id_sub(mod);
197
198 return 0;
199 }
200
201 int rsnd_mod_init(struct rsnd_priv *priv,
202 struct rsnd_mod *mod,
203 struct rsnd_mod_ops *ops,
204 struct clk *clk,
205 enum rsnd_mod_type type,
206 int id)
207 {
208 int ret = clk_prepare(clk);
209
210 if (ret)
211 return ret;
212
213 mod->id = id;
214 mod->ops = ops;
215 mod->type = type;
216 mod->clk = clk;
217 mod->priv = priv;
218
219 return ret;
220 }
221
222 void rsnd_mod_quit(struct rsnd_mod *mod)
223 {
224 clk_unprepare(mod->clk);
225 mod->clk = NULL;
226 }
227
228 void rsnd_mod_interrupt(struct rsnd_mod *mod,
229 void (*callback)(struct rsnd_mod *mod,
230 struct rsnd_dai_stream *io))
231 {
232 struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
233 struct rsnd_dai_stream *io;
234 struct rsnd_dai *rdai;
235 int i;
236
237 for_each_rsnd_dai(rdai, priv, i) {
238 io = &rdai->playback;
239 if (mod == io->mod[mod->type])
240 callback(mod, io);
241
242 io = &rdai->capture;
243 if (mod == io->mod[mod->type])
244 callback(mod, io);
245 }
246 }
247
248 int rsnd_io_is_working(struct rsnd_dai_stream *io)
249 {
250
251 if (io->substream)
252 return snd_pcm_running(io->substream);
253
254 return 0;
255 }
256
257 int rsnd_runtime_channel_original_with_params(struct rsnd_dai_stream *io,
258 struct snd_pcm_hw_params *params)
259 {
260 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
261
262
263
264
265
266
267
268 if (params)
269 return params_channels(params);
270 else
271 return runtime->channels;
272 }
273
274 int rsnd_runtime_channel_after_ctu_with_params(struct rsnd_dai_stream *io,
275 struct snd_pcm_hw_params *params)
276 {
277 int chan = rsnd_runtime_channel_original_with_params(io, params);
278 struct rsnd_mod *ctu_mod = rsnd_io_to_mod_ctu(io);
279
280 if (ctu_mod) {
281 u32 converted_chan = rsnd_io_converted_chan(io);
282
283
284
285
286
287
288
289
290 if (rsnd_runtime_is_tdm_split(io)) {
291 struct device *dev = rsnd_priv_to_dev(rsnd_io_to_priv(io));
292
293 dev_err(dev, "CTU and TDM Split should be used\n");
294 }
295
296 if (converted_chan)
297 return converted_chan;
298 }
299
300 return chan;
301 }
302
303 int rsnd_channel_normalization(int chan)
304 {
305 if ((chan > 8) || (chan < 0))
306 return 0;
307
308
309 if (chan == 6)
310 chan = 8;
311
312 return chan;
313 }
314
315 int rsnd_runtime_channel_for_ssi_with_params(struct rsnd_dai_stream *io,
316 struct snd_pcm_hw_params *params)
317 {
318 struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
319 int chan = rsnd_io_is_play(io) ?
320 rsnd_runtime_channel_after_ctu_with_params(io, params) :
321 rsnd_runtime_channel_original_with_params(io, params);
322
323
324 if (rsnd_runtime_is_multi_ssi(io))
325 chan /= rsnd_rdai_ssi_lane_get(rdai);
326
327 return rsnd_channel_normalization(chan);
328 }
329
330 int rsnd_runtime_is_multi_ssi(struct rsnd_dai_stream *io)
331 {
332 struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
333 int lane = rsnd_rdai_ssi_lane_get(rdai);
334 int chan = rsnd_io_is_play(io) ?
335 rsnd_runtime_channel_after_ctu(io) :
336 rsnd_runtime_channel_original(io);
337
338 return (chan > 2) && (lane > 1);
339 }
340
341 int rsnd_runtime_is_tdm(struct rsnd_dai_stream *io)
342 {
343 return rsnd_runtime_channel_for_ssi(io) >= 6;
344 }
345
346 int rsnd_runtime_is_tdm_split(struct rsnd_dai_stream *io)
347 {
348 return !!rsnd_flags_has(io, RSND_STREAM_TDM_SPLIT);
349 }
350
351
352
353
354 u32 rsnd_get_adinr_bit(struct rsnd_mod *mod, struct rsnd_dai_stream *io)
355 {
356 struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
357 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
358 struct device *dev = rsnd_priv_to_dev(priv);
359
360 switch (snd_pcm_format_width(runtime->format)) {
361 case 8:
362 return 16 << 16;
363 case 16:
364 return 8 << 16;
365 case 24:
366 return 0 << 16;
367 }
368
369 dev_warn(dev, "not supported sample bits\n");
370
371 return 0;
372 }
373
374
375
376
377 u32 rsnd_get_dalign(struct rsnd_mod *mod, struct rsnd_dai_stream *io)
378 {
379 static const u32 dalign_values[8][2] = {
380 {0x76543210, 0x67452301},
381 {0x00000032, 0x00000023},
382 {0x00007654, 0x00006745},
383 {0x00000076, 0x00000067},
384 {0xfedcba98, 0xefcdab89},
385 {0x000000ba, 0x000000ab},
386 {0x0000fedc, 0x0000efcd},
387 {0x000000fe, 0x000000ef},
388 };
389 int id = 0, inv;
390 struct rsnd_mod *ssiu = rsnd_io_to_mod_ssiu(io);
391 struct rsnd_mod *target;
392 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
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414
415 if (rsnd_io_is_play(io)) {
416 struct rsnd_mod *src = rsnd_io_to_mod_src(io);
417
418 target = src ? src : ssiu;
419 } else {
420 struct rsnd_mod *cmd = rsnd_io_to_mod_cmd(io);
421
422 target = cmd ? cmd : ssiu;
423 }
424
425 if (mod == ssiu)
426 id = rsnd_mod_id_sub(mod);
427
428
429 if ((snd_pcm_format_width(runtime->format) != 16) ||
430 (mod != target))
431 inv = 0;
432
433 else
434 inv = 1;
435
436 return dalign_values[id][inv];
437 }
438
439 u32 rsnd_get_busif_shift(struct rsnd_dai_stream *io, struct rsnd_mod *mod)
440 {
441 enum rsnd_mod_type playback_mods[] = {
442 RSND_MOD_SRC,
443 RSND_MOD_CMD,
444 RSND_MOD_SSIU,
445 };
446 enum rsnd_mod_type capture_mods[] = {
447 RSND_MOD_CMD,
448 RSND_MOD_SRC,
449 RSND_MOD_SSIU,
450 };
451 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
452 struct rsnd_mod *tmod = NULL;
453 enum rsnd_mod_type *mods =
454 rsnd_io_is_play(io) ?
455 playback_mods : capture_mods;
456 int i;
457
458
459
460
461
462
463
464
465
466 if (snd_pcm_format_width(runtime->format) != 24)
467 return 0;
468
469 for (i = 0; i < ARRAY_SIZE(playback_mods); i++) {
470 tmod = rsnd_io_to_mod(io, mods[i]);
471 if (tmod)
472 break;
473 }
474
475 if (tmod != mod)
476 return 0;
477
478 if (rsnd_io_is_play(io))
479 return (0 << 20) |
480 (8 << 16);
481 else
482 return (1 << 20) |
483 (8 << 16);
484 }
485
486
487
488
489 struct rsnd_mod *rsnd_mod_next(int *iterator,
490 struct rsnd_dai_stream *io,
491 enum rsnd_mod_type *array,
492 int array_size)
493 {
494 struct rsnd_mod *mod;
495 enum rsnd_mod_type type;
496 int max = array ? array_size : RSND_MOD_MAX;
497
498 for (; *iterator < max; (*iterator)++) {
499 type = (array) ? array[*iterator] : *iterator;
500 mod = rsnd_io_to_mod(io, type);
501 if (mod)
502 return mod;
503 }
504
505 return NULL;
506 }
507
508 static enum rsnd_mod_type rsnd_mod_sequence[][RSND_MOD_MAX] = {
509 {
510
511 RSND_MOD_AUDMAPP,
512 RSND_MOD_AUDMA,
513 RSND_MOD_DVC,
514 RSND_MOD_MIX,
515 RSND_MOD_CTU,
516 RSND_MOD_CMD,
517 RSND_MOD_SRC,
518 RSND_MOD_SSIU,
519 RSND_MOD_SSIM3,
520 RSND_MOD_SSIM2,
521 RSND_MOD_SSIM1,
522 RSND_MOD_SSIP,
523 RSND_MOD_SSI,
524 }, {
525
526 RSND_MOD_AUDMAPP,
527 RSND_MOD_AUDMA,
528 RSND_MOD_SSIM3,
529 RSND_MOD_SSIM2,
530 RSND_MOD_SSIM1,
531 RSND_MOD_SSIP,
532 RSND_MOD_SSI,
533 RSND_MOD_SSIU,
534 RSND_MOD_DVC,
535 RSND_MOD_MIX,
536 RSND_MOD_CTU,
537 RSND_MOD_CMD,
538 RSND_MOD_SRC,
539 },
540 };
541
542 static int rsnd_status_update(u32 *status,
543 int shift, int add, int timing)
544 {
545 u32 mask = 0xF << shift;
546 u8 val = (*status >> shift) & 0xF;
547 u8 next_val = (val + add) & 0xF;
548 int func_call = (val == timing);
549
550 if (next_val == 0xF)
551 func_call = 0;
552 else
553 *status = (*status & ~mask) + (next_val << shift);
554
555 return func_call;
556 }
557
558 #define rsnd_dai_call(fn, io, param...) \
559 ({ \
560 struct device *dev = rsnd_priv_to_dev(rsnd_io_to_priv(io)); \
561 struct rsnd_mod *mod; \
562 int is_play = rsnd_io_is_play(io); \
563 int ret = 0, i; \
564 enum rsnd_mod_type *types = rsnd_mod_sequence[is_play]; \
565 for_each_rsnd_mod_arrays(i, mod, io, types, RSND_MOD_MAX) { \
566 int tmp = 0; \
567 u32 *status = mod->ops->get_status(mod, io, types[i]); \
568 int func_call = rsnd_status_update(status, \
569 __rsnd_mod_shift_##fn, \
570 __rsnd_mod_add_##fn, \
571 __rsnd_mod_call_##fn); \
572 rsnd_dbg_dai_call(dev, "%s\t0x%08x %s\n", \
573 rsnd_mod_name(mod), *status, \
574 (func_call && (mod)->ops->fn) ? #fn : ""); \
575 if (func_call && (mod)->ops->fn) \
576 tmp = (mod)->ops->fn(mod, io, param); \
577 if (tmp && (tmp != -EPROBE_DEFER)) \
578 dev_err(dev, "%s : %s error %d\n", \
579 rsnd_mod_name(mod), #fn, tmp); \
580 ret |= tmp; \
581 } \
582 ret; \
583 })
584
585 int rsnd_dai_connect(struct rsnd_mod *mod,
586 struct rsnd_dai_stream *io,
587 enum rsnd_mod_type type)
588 {
589 struct rsnd_priv *priv;
590 struct device *dev;
591
592 if (!mod)
593 return -EIO;
594
595 if (io->mod[type] == mod)
596 return 0;
597
598 if (io->mod[type])
599 return -EINVAL;
600
601 priv = rsnd_mod_to_priv(mod);
602 dev = rsnd_priv_to_dev(priv);
603
604 io->mod[type] = mod;
605
606 dev_dbg(dev, "%s is connected to io (%s)\n",
607 rsnd_mod_name(mod),
608 rsnd_io_is_play(io) ? "Playback" : "Capture");
609
610 return 0;
611 }
612
613 static void rsnd_dai_disconnect(struct rsnd_mod *mod,
614 struct rsnd_dai_stream *io,
615 enum rsnd_mod_type type)
616 {
617 io->mod[type] = NULL;
618 }
619
620 int rsnd_rdai_channels_ctrl(struct rsnd_dai *rdai,
621 int max_channels)
622 {
623 if (max_channels > 0)
624 rdai->max_channels = max_channels;
625
626 return rdai->max_channels;
627 }
628
629 int rsnd_rdai_ssi_lane_ctrl(struct rsnd_dai *rdai,
630 int ssi_lane)
631 {
632 if (ssi_lane > 0)
633 rdai->ssi_lane = ssi_lane;
634
635 return rdai->ssi_lane;
636 }
637
638 int rsnd_rdai_width_ctrl(struct rsnd_dai *rdai, int width)
639 {
640 if (width > 0)
641 rdai->chan_width = width;
642
643 return rdai->chan_width;
644 }
645
646 struct rsnd_dai *rsnd_rdai_get(struct rsnd_priv *priv, int id)
647 {
648 if ((id < 0) || (id >= rsnd_rdai_nr(priv)))
649 return NULL;
650
651 return priv->rdai + id;
652 }
653
654 static struct snd_soc_dai_driver
655 *rsnd_daidrv_get(struct rsnd_priv *priv, int id)
656 {
657 if ((id < 0) || (id >= rsnd_rdai_nr(priv)))
658 return NULL;
659
660 return priv->daidrv + id;
661 }
662
663 #define rsnd_dai_to_priv(dai) snd_soc_dai_get_drvdata(dai)
664 static struct rsnd_dai *rsnd_dai_to_rdai(struct snd_soc_dai *dai)
665 {
666 struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
667
668 return rsnd_rdai_get(priv, dai->id);
669 }
670
671
672
673
674 void rsnd_dai_period_elapsed(struct rsnd_dai_stream *io)
675 {
676 struct snd_pcm_substream *substream = io->substream;
677
678
679
680
681
682
683
684
685 snd_pcm_period_elapsed(substream);
686 }
687
688 static void rsnd_dai_stream_init(struct rsnd_dai_stream *io,
689 struct snd_pcm_substream *substream)
690 {
691 io->substream = substream;
692 }
693
694 static void rsnd_dai_stream_quit(struct rsnd_dai_stream *io)
695 {
696 io->substream = NULL;
697 }
698
699 static
700 struct snd_soc_dai *rsnd_substream_to_dai(struct snd_pcm_substream *substream)
701 {
702 struct snd_soc_pcm_runtime *rtd = substream->private_data;
703
704 return rtd->cpu_dai;
705 }
706
707 static
708 struct rsnd_dai_stream *rsnd_rdai_to_io(struct rsnd_dai *rdai,
709 struct snd_pcm_substream *substream)
710 {
711 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
712 return &rdai->playback;
713 else
714 return &rdai->capture;
715 }
716
717 static int rsnd_soc_dai_trigger(struct snd_pcm_substream *substream, int cmd,
718 struct snd_soc_dai *dai)
719 {
720 struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
721 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
722 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
723 int ret;
724 unsigned long flags;
725
726 spin_lock_irqsave(&priv->lock, flags);
727
728 switch (cmd) {
729 case SNDRV_PCM_TRIGGER_START:
730 case SNDRV_PCM_TRIGGER_RESUME:
731 ret = rsnd_dai_call(init, io, priv);
732 if (ret < 0)
733 goto dai_trigger_end;
734
735 ret = rsnd_dai_call(start, io, priv);
736 if (ret < 0)
737 goto dai_trigger_end;
738
739 ret = rsnd_dai_call(irq, io, priv, 1);
740 if (ret < 0)
741 goto dai_trigger_end;
742
743 break;
744 case SNDRV_PCM_TRIGGER_STOP:
745 case SNDRV_PCM_TRIGGER_SUSPEND:
746 ret = rsnd_dai_call(irq, io, priv, 0);
747
748 ret |= rsnd_dai_call(stop, io, priv);
749
750 ret |= rsnd_dai_call(quit, io, priv);
751
752 break;
753 default:
754 ret = -EINVAL;
755 }
756
757 dai_trigger_end:
758 spin_unlock_irqrestore(&priv->lock, flags);
759
760 return ret;
761 }
762
763 static int rsnd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
764 {
765 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
766
767
768 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
769 case SND_SOC_DAIFMT_CBM_CFM:
770 rdai->clk_master = 0;
771 break;
772 case SND_SOC_DAIFMT_CBS_CFS:
773 rdai->clk_master = 1;
774 break;
775 default:
776 return -EINVAL;
777 }
778
779
780 rdai->bit_clk_inv = 0;
781 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
782 case SND_SOC_DAIFMT_I2S:
783 rdai->sys_delay = 0;
784 rdai->data_alignment = 0;
785 rdai->frm_clk_inv = 0;
786 break;
787 case SND_SOC_DAIFMT_LEFT_J:
788 case SND_SOC_DAIFMT_DSP_B:
789 rdai->sys_delay = 1;
790 rdai->data_alignment = 0;
791 rdai->frm_clk_inv = 1;
792 break;
793 case SND_SOC_DAIFMT_RIGHT_J:
794 rdai->sys_delay = 1;
795 rdai->data_alignment = 1;
796 rdai->frm_clk_inv = 1;
797 break;
798 case SND_SOC_DAIFMT_DSP_A:
799 rdai->sys_delay = 0;
800 rdai->data_alignment = 0;
801 rdai->frm_clk_inv = 1;
802 break;
803 }
804
805
806 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
807 case SND_SOC_DAIFMT_NB_IF:
808 rdai->frm_clk_inv = !rdai->frm_clk_inv;
809 break;
810 case SND_SOC_DAIFMT_IB_NF:
811 rdai->bit_clk_inv = !rdai->bit_clk_inv;
812 break;
813 case SND_SOC_DAIFMT_IB_IF:
814 rdai->bit_clk_inv = !rdai->bit_clk_inv;
815 rdai->frm_clk_inv = !rdai->frm_clk_inv;
816 break;
817 case SND_SOC_DAIFMT_NB_NF:
818 default:
819 break;
820 }
821
822 return 0;
823 }
824
825 static int rsnd_soc_set_dai_tdm_slot(struct snd_soc_dai *dai,
826 u32 tx_mask, u32 rx_mask,
827 int slots, int slot_width)
828 {
829 struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
830 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
831 struct device *dev = rsnd_priv_to_dev(priv);
832
833 switch (slot_width) {
834 case 16:
835 case 24:
836 case 32:
837 break;
838 default:
839
840 slot_width = 32;
841 }
842
843 switch (slots) {
844 case 2:
845
846 case 6:
847 case 8:
848
849 rsnd_rdai_channels_set(rdai, slots);
850 rsnd_rdai_ssi_lane_set(rdai, 1);
851 rsnd_rdai_width_set(rdai, slot_width);
852 break;
853 default:
854 dev_err(dev, "unsupported TDM slots (%d)\n", slots);
855 return -EINVAL;
856 }
857
858 return 0;
859 }
860
861 static unsigned int rsnd_soc_hw_channels_list[] = {
862 2, 6, 8,
863 };
864
865 static unsigned int rsnd_soc_hw_rate_list[] = {
866 8000,
867 11025,
868 16000,
869 22050,
870 32000,
871 44100,
872 48000,
873 64000,
874 88200,
875 96000,
876 176400,
877 192000,
878 };
879
880 static int rsnd_soc_hw_rule(struct rsnd_dai *rdai,
881 unsigned int *list, int list_num,
882 struct snd_interval *baseline, struct snd_interval *iv)
883 {
884 struct snd_interval p;
885 unsigned int rate;
886 int i;
887
888 snd_interval_any(&p);
889 p.min = UINT_MAX;
890 p.max = 0;
891
892 for (i = 0; i < list_num; i++) {
893
894 if (!snd_interval_test(iv, list[i]))
895 continue;
896
897 rate = rsnd_ssi_clk_query(rdai,
898 baseline->min, list[i], NULL);
899 if (rate > 0) {
900 p.min = min(p.min, list[i]);
901 p.max = max(p.max, list[i]);
902 }
903
904 rate = rsnd_ssi_clk_query(rdai,
905 baseline->max, list[i], NULL);
906 if (rate > 0) {
907 p.min = min(p.min, list[i]);
908 p.max = max(p.max, list[i]);
909 }
910 }
911
912 return snd_interval_refine(iv, &p);
913 }
914
915 static int rsnd_soc_hw_rule_rate(struct snd_pcm_hw_params *params,
916 struct snd_pcm_hw_rule *rule)
917 {
918 struct snd_interval *ic_ = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
919 struct snd_interval *ir = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
920 struct snd_interval ic;
921 struct rsnd_dai_stream *io = rule->private;
922 struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
923
924
925
926
927
928
929 ic = *ic_;
930 ic.min =
931 ic.max = rsnd_runtime_channel_for_ssi_with_params(io, params);
932
933 return rsnd_soc_hw_rule(rdai, rsnd_soc_hw_rate_list,
934 ARRAY_SIZE(rsnd_soc_hw_rate_list),
935 &ic, ir);
936 }
937
938 static int rsnd_soc_hw_rule_channels(struct snd_pcm_hw_params *params,
939 struct snd_pcm_hw_rule *rule)
940 {
941 struct snd_interval *ic_ = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
942 struct snd_interval *ir = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
943 struct snd_interval ic;
944 struct rsnd_dai_stream *io = rule->private;
945 struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
946
947
948
949
950
951
952 ic = *ic_;
953 ic.min =
954 ic.max = rsnd_runtime_channel_for_ssi_with_params(io, params);
955
956 return rsnd_soc_hw_rule(rdai, rsnd_soc_hw_channels_list,
957 ARRAY_SIZE(rsnd_soc_hw_channels_list),
958 ir, &ic);
959 }
960
961 static const struct snd_pcm_hardware rsnd_pcm_hardware = {
962 .info = SNDRV_PCM_INFO_INTERLEAVED |
963 SNDRV_PCM_INFO_MMAP |
964 SNDRV_PCM_INFO_MMAP_VALID,
965 .buffer_bytes_max = 64 * 1024,
966 .period_bytes_min = 32,
967 .period_bytes_max = 8192,
968 .periods_min = 1,
969 .periods_max = 32,
970 .fifo_size = 256,
971 };
972
973 static int rsnd_soc_dai_startup(struct snd_pcm_substream *substream,
974 struct snd_soc_dai *dai)
975 {
976 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
977 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
978 struct snd_pcm_hw_constraint_list *constraint = &rdai->constraint;
979 struct snd_pcm_runtime *runtime = substream->runtime;
980 unsigned int max_channels = rsnd_rdai_channels_get(rdai);
981 int i;
982
983 rsnd_dai_stream_init(io, substream);
984
985
986
987
988
989 constraint->list = rsnd_soc_hw_channels_list;
990 constraint->count = 0;
991 constraint->mask = 0;
992
993 for (i = 0; i < ARRAY_SIZE(rsnd_soc_hw_channels_list); i++) {
994 if (rsnd_soc_hw_channels_list[i] > max_channels)
995 break;
996 constraint->count = i + 1;
997 }
998
999 snd_soc_set_runtime_hwparams(substream, &rsnd_pcm_hardware);
1000
1001 snd_pcm_hw_constraint_list(runtime, 0,
1002 SNDRV_PCM_HW_PARAM_CHANNELS, constraint);
1003
1004 snd_pcm_hw_constraint_integer(runtime,
1005 SNDRV_PCM_HW_PARAM_PERIODS);
1006
1007
1008
1009
1010
1011 if (rsnd_rdai_is_clk_master(rdai)) {
1012 int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
1013
1014 snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
1015 rsnd_soc_hw_rule_rate,
1016 is_play ? &rdai->playback : &rdai->capture,
1017 SNDRV_PCM_HW_PARAM_CHANNELS, -1);
1018 snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
1019 rsnd_soc_hw_rule_channels,
1020 is_play ? &rdai->playback : &rdai->capture,
1021 SNDRV_PCM_HW_PARAM_RATE, -1);
1022 }
1023
1024 return 0;
1025 }
1026
1027 static void rsnd_soc_dai_shutdown(struct snd_pcm_substream *substream,
1028 struct snd_soc_dai *dai)
1029 {
1030 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
1031 struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai);
1032 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
1033
1034
1035
1036
1037 rsnd_dai_call(cleanup, io, priv);
1038
1039 rsnd_dai_stream_quit(io);
1040 }
1041
1042 static int rsnd_soc_dai_prepare(struct snd_pcm_substream *substream,
1043 struct snd_soc_dai *dai)
1044 {
1045 struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
1046 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
1047 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
1048
1049 return rsnd_dai_call(prepare, io, priv);
1050 }
1051
1052 static const struct snd_soc_dai_ops rsnd_soc_dai_ops = {
1053 .startup = rsnd_soc_dai_startup,
1054 .shutdown = rsnd_soc_dai_shutdown,
1055 .trigger = rsnd_soc_dai_trigger,
1056 .set_fmt = rsnd_soc_dai_set_fmt,
1057 .set_tdm_slot = rsnd_soc_set_dai_tdm_slot,
1058 .prepare = rsnd_soc_dai_prepare,
1059 };
1060
1061 static void rsnd_parse_tdm_split_mode(struct rsnd_priv *priv,
1062 struct rsnd_dai_stream *io,
1063 struct device_node *dai_np)
1064 {
1065 struct device *dev = rsnd_priv_to_dev(priv);
1066 struct device_node *ssiu_np = rsnd_ssiu_of_node(priv);
1067 struct device_node *np;
1068 int is_play = rsnd_io_is_play(io);
1069 int i, j;
1070
1071 if (!ssiu_np)
1072 return;
1073
1074
1075
1076
1077
1078 for (i = 0;; i++) {
1079 struct device_node *node = is_play ?
1080 of_parse_phandle(dai_np, "playback", i) :
1081 of_parse_phandle(dai_np, "capture", i);
1082
1083 if (!node)
1084 break;
1085
1086 j = 0;
1087 for_each_child_of_node(ssiu_np, np) {
1088 if (np == node) {
1089 rsnd_flags_set(io, RSND_STREAM_TDM_SPLIT);
1090 dev_dbg(dev, "%s is part of TDM Split\n", io->name);
1091 }
1092 j++;
1093 }
1094
1095 }
1096 }
1097
1098 static void rsnd_parse_connect_simple(struct rsnd_priv *priv,
1099 struct rsnd_dai_stream *io,
1100 struct device_node *dai_np)
1101 {
1102 if (!rsnd_io_to_mod_ssi(io))
1103 return;
1104
1105 rsnd_parse_tdm_split_mode(priv, io, dai_np);
1106 }
1107
1108 static void rsnd_parse_connect_graph(struct rsnd_priv *priv,
1109 struct rsnd_dai_stream *io,
1110 struct device_node *endpoint)
1111 {
1112 struct device *dev = rsnd_priv_to_dev(priv);
1113 struct device_node *remote_node = of_graph_get_remote_port_parent(endpoint);
1114
1115 if (!rsnd_io_to_mod_ssi(io))
1116 return;
1117
1118
1119 if (strstr(remote_node->full_name, "hdmi@fead0000")) {
1120 rsnd_flags_set(io, RSND_STREAM_HDMI0);
1121 dev_dbg(dev, "%s connected to HDMI0\n", io->name);
1122 }
1123
1124
1125 if (strstr(remote_node->full_name, "hdmi@feae0000")) {
1126 rsnd_flags_set(io, RSND_STREAM_HDMI1);
1127 dev_dbg(dev, "%s connected to HDMI1\n", io->name);
1128 }
1129
1130 rsnd_parse_tdm_split_mode(priv, io, endpoint);
1131 }
1132
1133 void rsnd_parse_connect_common(struct rsnd_dai *rdai,
1134 struct rsnd_mod* (*mod_get)(struct rsnd_priv *priv, int id),
1135 struct device_node *node,
1136 struct device_node *playback,
1137 struct device_node *capture)
1138 {
1139 struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai);
1140 struct device_node *np;
1141 struct rsnd_mod *mod;
1142 int i;
1143
1144 if (!node)
1145 return;
1146
1147 i = 0;
1148 for_each_child_of_node(node, np) {
1149 mod = mod_get(priv, i);
1150 if (np == playback)
1151 rsnd_dai_connect(mod, &rdai->playback, mod->type);
1152 if (np == capture)
1153 rsnd_dai_connect(mod, &rdai->capture, mod->type);
1154 i++;
1155 }
1156
1157 of_node_put(node);
1158 }
1159
1160 static struct device_node *rsnd_dai_of_node(struct rsnd_priv *priv,
1161 int *is_graph)
1162 {
1163 struct device *dev = rsnd_priv_to_dev(priv);
1164 struct device_node *np = dev->of_node;
1165 struct device_node *dai_node;
1166 struct device_node *ret;
1167
1168 *is_graph = 0;
1169
1170
1171
1172
1173
1174 dai_node = of_get_child_by_name(np, RSND_NODE_DAI);
1175 if (dai_node) {
1176 ret = dai_node;
1177 goto of_node_compatible;
1178 }
1179
1180 ret = np;
1181
1182 dai_node = of_graph_get_next_endpoint(np, NULL);
1183 if (dai_node)
1184 goto of_node_graph;
1185
1186 return NULL;
1187
1188 of_node_graph:
1189 *is_graph = 1;
1190 of_node_compatible:
1191 of_node_put(dai_node);
1192
1193 return ret;
1194 }
1195
1196
1197 #define PREALLOC_BUFFER (32 * 1024)
1198 #define PREALLOC_BUFFER_MAX (32 * 1024)
1199
1200 static int rsnd_preallocate_pages(struct snd_soc_pcm_runtime *rtd,
1201 struct rsnd_dai_stream *io,
1202 int stream)
1203 {
1204 struct rsnd_priv *priv = rsnd_io_to_priv(io);
1205 struct device *dev = rsnd_priv_to_dev(priv);
1206 struct snd_pcm_substream *substream;
1207
1208
1209
1210
1211
1212
1213 if (io->dmac_dev)
1214 dev = io->dmac_dev;
1215
1216 for (substream = rtd->pcm->streams[stream].substream;
1217 substream;
1218 substream = substream->next) {
1219 snd_pcm_lib_preallocate_pages(substream,
1220 SNDRV_DMA_TYPE_DEV,
1221 dev,
1222 PREALLOC_BUFFER, PREALLOC_BUFFER_MAX);
1223 }
1224
1225 return 0;
1226 }
1227
1228 static int rsnd_pcm_new(struct snd_soc_pcm_runtime *rtd,
1229 struct snd_soc_dai *dai)
1230 {
1231 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
1232 int ret;
1233
1234 ret = rsnd_dai_call(pcm_new, &rdai->playback, rtd);
1235 if (ret)
1236 return ret;
1237
1238 ret = rsnd_dai_call(pcm_new, &rdai->capture, rtd);
1239 if (ret)
1240 return ret;
1241
1242 ret = rsnd_preallocate_pages(rtd, &rdai->playback,
1243 SNDRV_PCM_STREAM_PLAYBACK);
1244 if (ret)
1245 return ret;
1246
1247 ret = rsnd_preallocate_pages(rtd, &rdai->capture,
1248 SNDRV_PCM_STREAM_CAPTURE);
1249 if (ret)
1250 return ret;
1251
1252 return 0;
1253 }
1254
1255 static void __rsnd_dai_probe(struct rsnd_priv *priv,
1256 struct device_node *dai_np,
1257 int dai_i)
1258 {
1259 struct device_node *playback, *capture;
1260 struct rsnd_dai_stream *io_playback;
1261 struct rsnd_dai_stream *io_capture;
1262 struct snd_soc_dai_driver *drv;
1263 struct rsnd_dai *rdai;
1264 struct device *dev = rsnd_priv_to_dev(priv);
1265 int io_i;
1266
1267 rdai = rsnd_rdai_get(priv, dai_i);
1268 drv = rsnd_daidrv_get(priv, dai_i);
1269 io_playback = &rdai->playback;
1270 io_capture = &rdai->capture;
1271
1272 snprintf(rdai->name, RSND_DAI_NAME_SIZE, "rsnd-dai.%d", dai_i);
1273
1274 rdai->priv = priv;
1275 drv->name = rdai->name;
1276 drv->ops = &rsnd_soc_dai_ops;
1277 drv->pcm_new = rsnd_pcm_new;
1278
1279 snprintf(io_playback->name, RSND_DAI_NAME_SIZE,
1280 "DAI%d Playback", dai_i);
1281 drv->playback.rates = RSND_RATES;
1282 drv->playback.formats = RSND_FMTS;
1283 drv->playback.channels_min = 2;
1284 drv->playback.channels_max = 8;
1285 drv->playback.stream_name = io_playback->name;
1286
1287 snprintf(io_capture->name, RSND_DAI_NAME_SIZE,
1288 "DAI%d Capture", dai_i);
1289 drv->capture.rates = RSND_RATES;
1290 drv->capture.formats = RSND_FMTS;
1291 drv->capture.channels_min = 2;
1292 drv->capture.channels_max = 8;
1293 drv->capture.stream_name = io_capture->name;
1294
1295 io_playback->rdai = rdai;
1296 io_capture->rdai = rdai;
1297 rsnd_rdai_channels_set(rdai, 2);
1298 rsnd_rdai_ssi_lane_set(rdai, 1);
1299 rsnd_rdai_width_set(rdai, 32);
1300
1301 for (io_i = 0;; io_i++) {
1302 playback = of_parse_phandle(dai_np, "playback", io_i);
1303 capture = of_parse_phandle(dai_np, "capture", io_i);
1304
1305 if (!playback && !capture)
1306 break;
1307
1308 rsnd_parse_connect_ssi(rdai, playback, capture);
1309 rsnd_parse_connect_ssiu(rdai, playback, capture);
1310 rsnd_parse_connect_src(rdai, playback, capture);
1311 rsnd_parse_connect_ctu(rdai, playback, capture);
1312 rsnd_parse_connect_mix(rdai, playback, capture);
1313 rsnd_parse_connect_dvc(rdai, playback, capture);
1314
1315 of_node_put(playback);
1316 of_node_put(capture);
1317 }
1318
1319 if (rsnd_ssi_is_pin_sharing(io_capture) ||
1320 rsnd_ssi_is_pin_sharing(io_playback)) {
1321
1322 drv->symmetric_rates = 1;
1323 }
1324
1325 dev_dbg(dev, "%s (%s/%s)\n", rdai->name,
1326 rsnd_io_to_mod_ssi(io_playback) ? "play" : " -- ",
1327 rsnd_io_to_mod_ssi(io_capture) ? "capture" : " -- ");
1328 }
1329
1330 static int rsnd_dai_probe(struct rsnd_priv *priv)
1331 {
1332 struct device_node *dai_node;
1333 struct device_node *dai_np;
1334 struct snd_soc_dai_driver *rdrv;
1335 struct device *dev = rsnd_priv_to_dev(priv);
1336 struct rsnd_dai *rdai;
1337 int nr;
1338 int is_graph;
1339 int dai_i;
1340
1341 dai_node = rsnd_dai_of_node(priv, &is_graph);
1342 if (is_graph)
1343 nr = of_graph_get_endpoint_count(dai_node);
1344 else
1345 nr = of_get_child_count(dai_node);
1346
1347 if (!nr)
1348 return -EINVAL;
1349
1350 rdrv = devm_kcalloc(dev, nr, sizeof(*rdrv), GFP_KERNEL);
1351 rdai = devm_kcalloc(dev, nr, sizeof(*rdai), GFP_KERNEL);
1352 if (!rdrv || !rdai)
1353 return -ENOMEM;
1354
1355 priv->rdai_nr = nr;
1356 priv->daidrv = rdrv;
1357 priv->rdai = rdai;
1358
1359
1360
1361
1362 dai_i = 0;
1363 if (is_graph) {
1364 for_each_endpoint_of_node(dai_node, dai_np) {
1365 __rsnd_dai_probe(priv, dai_np, dai_i);
1366 if (rsnd_is_gen3(priv)) {
1367 struct rsnd_dai *rdai = rsnd_rdai_get(priv, dai_i);
1368
1369 rsnd_parse_connect_graph(priv, &rdai->playback, dai_np);
1370 rsnd_parse_connect_graph(priv, &rdai->capture, dai_np);
1371 }
1372 dai_i++;
1373 }
1374 } else {
1375 for_each_child_of_node(dai_node, dai_np) {
1376 __rsnd_dai_probe(priv, dai_np, dai_i);
1377 if (rsnd_is_gen3(priv)) {
1378 struct rsnd_dai *rdai = rsnd_rdai_get(priv, dai_i);
1379
1380 rsnd_parse_connect_simple(priv, &rdai->playback, dai_np);
1381 rsnd_parse_connect_simple(priv, &rdai->capture, dai_np);
1382 }
1383 dai_i++;
1384 }
1385 }
1386
1387 return 0;
1388 }
1389
1390
1391
1392
1393 static int rsnd_hw_params(struct snd_pcm_substream *substream,
1394 struct snd_pcm_hw_params *hw_params)
1395 {
1396 struct snd_soc_dai *dai = rsnd_substream_to_dai(substream);
1397 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
1398 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
1399 struct snd_soc_pcm_runtime *fe = substream->private_data;
1400 int ret;
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411 io->converted_rate = 0;
1412 io->converted_chan = 0;
1413 if (fe->dai_link->dynamic) {
1414 struct rsnd_priv *priv = rsnd_io_to_priv(io);
1415 struct device *dev = rsnd_priv_to_dev(priv);
1416 struct snd_soc_dpcm *dpcm;
1417 struct snd_pcm_hw_params *be_params;
1418 int stream = substream->stream;
1419
1420 for_each_dpcm_be(fe, stream, dpcm) {
1421 be_params = &dpcm->hw_params;
1422 if (params_channels(hw_params) != params_channels(be_params))
1423 io->converted_chan = params_channels(be_params);
1424 if (params_rate(hw_params) != params_rate(be_params))
1425 io->converted_rate = params_rate(be_params);
1426 }
1427 if (io->converted_chan)
1428 dev_dbg(dev, "convert channels = %d\n", io->converted_chan);
1429 if (io->converted_rate)
1430 dev_dbg(dev, "convert rate = %d\n", io->converted_rate);
1431 }
1432
1433 ret = rsnd_dai_call(hw_params, io, substream, hw_params);
1434 if (ret)
1435 return ret;
1436
1437 return snd_pcm_lib_malloc_pages(substream,
1438 params_buffer_bytes(hw_params));
1439 }
1440
1441 static int rsnd_hw_free(struct snd_pcm_substream *substream)
1442 {
1443 struct snd_soc_dai *dai = rsnd_substream_to_dai(substream);
1444 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
1445 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
1446 int ret;
1447
1448 ret = rsnd_dai_call(hw_free, io, substream);
1449 if (ret)
1450 return ret;
1451
1452 return snd_pcm_lib_free_pages(substream);
1453 }
1454
1455 static snd_pcm_uframes_t rsnd_pointer(struct snd_pcm_substream *substream)
1456 {
1457 struct snd_soc_dai *dai = rsnd_substream_to_dai(substream);
1458 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
1459 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
1460 snd_pcm_uframes_t pointer = 0;
1461
1462 rsnd_dai_call(pointer, io, &pointer);
1463
1464 return pointer;
1465 }
1466
1467 static const struct snd_pcm_ops rsnd_pcm_ops = {
1468 .ioctl = snd_pcm_lib_ioctl,
1469 .hw_params = rsnd_hw_params,
1470 .hw_free = rsnd_hw_free,
1471 .pointer = rsnd_pointer,
1472 };
1473
1474
1475
1476
1477 static int rsnd_kctrl_info(struct snd_kcontrol *kctrl,
1478 struct snd_ctl_elem_info *uinfo)
1479 {
1480 struct rsnd_kctrl_cfg *cfg = snd_kcontrol_chip(kctrl);
1481
1482 if (cfg->texts) {
1483 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1484 uinfo->count = cfg->size;
1485 uinfo->value.enumerated.items = cfg->max;
1486 if (uinfo->value.enumerated.item >= cfg->max)
1487 uinfo->value.enumerated.item = cfg->max - 1;
1488 strlcpy(uinfo->value.enumerated.name,
1489 cfg->texts[uinfo->value.enumerated.item],
1490 sizeof(uinfo->value.enumerated.name));
1491 } else {
1492 uinfo->count = cfg->size;
1493 uinfo->value.integer.min = 0;
1494 uinfo->value.integer.max = cfg->max;
1495 uinfo->type = (cfg->max == 1) ?
1496 SNDRV_CTL_ELEM_TYPE_BOOLEAN :
1497 SNDRV_CTL_ELEM_TYPE_INTEGER;
1498 }
1499
1500 return 0;
1501 }
1502
1503 static int rsnd_kctrl_get(struct snd_kcontrol *kctrl,
1504 struct snd_ctl_elem_value *uc)
1505 {
1506 struct rsnd_kctrl_cfg *cfg = snd_kcontrol_chip(kctrl);
1507 int i;
1508
1509 for (i = 0; i < cfg->size; i++)
1510 if (cfg->texts)
1511 uc->value.enumerated.item[i] = cfg->val[i];
1512 else
1513 uc->value.integer.value[i] = cfg->val[i];
1514
1515 return 0;
1516 }
1517
1518 static int rsnd_kctrl_put(struct snd_kcontrol *kctrl,
1519 struct snd_ctl_elem_value *uc)
1520 {
1521 struct rsnd_kctrl_cfg *cfg = snd_kcontrol_chip(kctrl);
1522 int i, change = 0;
1523
1524 if (!cfg->accept(cfg->io))
1525 return 0;
1526
1527 for (i = 0; i < cfg->size; i++) {
1528 if (cfg->texts) {
1529 change |= (uc->value.enumerated.item[i] != cfg->val[i]);
1530 cfg->val[i] = uc->value.enumerated.item[i];
1531 } else {
1532 change |= (uc->value.integer.value[i] != cfg->val[i]);
1533 cfg->val[i] = uc->value.integer.value[i];
1534 }
1535 }
1536
1537 if (change && cfg->update)
1538 cfg->update(cfg->io, cfg->mod);
1539
1540 return change;
1541 }
1542
1543 int rsnd_kctrl_accept_anytime(struct rsnd_dai_stream *io)
1544 {
1545 return 1;
1546 }
1547
1548 int rsnd_kctrl_accept_runtime(struct rsnd_dai_stream *io)
1549 {
1550 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
1551 struct rsnd_priv *priv = rsnd_io_to_priv(io);
1552 struct device *dev = rsnd_priv_to_dev(priv);
1553
1554 if (!runtime) {
1555 dev_warn(dev, "Can't update kctrl when idle\n");
1556 return 0;
1557 }
1558
1559 return 1;
1560 }
1561
1562 struct rsnd_kctrl_cfg *rsnd_kctrl_init_m(struct rsnd_kctrl_cfg_m *cfg)
1563 {
1564 cfg->cfg.val = cfg->val;
1565
1566 return &cfg->cfg;
1567 }
1568
1569 struct rsnd_kctrl_cfg *rsnd_kctrl_init_s(struct rsnd_kctrl_cfg_s *cfg)
1570 {
1571 cfg->cfg.val = &cfg->val;
1572
1573 return &cfg->cfg;
1574 }
1575
1576 const char * const volume_ramp_rate[] = {
1577 "128 dB/1 step",
1578 "64 dB/1 step",
1579 "32 dB/1 step",
1580 "16 dB/1 step",
1581 "8 dB/1 step",
1582 "4 dB/1 step",
1583 "2 dB/1 step",
1584 "1 dB/1 step",
1585 "0.5 dB/1 step",
1586 "0.25 dB/1 step",
1587 "0.125 dB/1 step",
1588 "0.125 dB/2 steps",
1589 "0.125 dB/4 steps",
1590 "0.125 dB/8 steps",
1591 "0.125 dB/16 steps",
1592 "0.125 dB/32 steps",
1593 "0.125 dB/64 steps",
1594 "0.125 dB/128 steps",
1595 "0.125 dB/256 steps",
1596 "0.125 dB/512 steps",
1597 "0.125 dB/1024 steps",
1598 "0.125 dB/2048 steps",
1599 "0.125 dB/4096 steps",
1600 "0.125 dB/8192 steps",
1601 };
1602
1603 int rsnd_kctrl_new(struct rsnd_mod *mod,
1604 struct rsnd_dai_stream *io,
1605 struct snd_soc_pcm_runtime *rtd,
1606 const unsigned char *name,
1607 int (*accept)(struct rsnd_dai_stream *io),
1608 void (*update)(struct rsnd_dai_stream *io,
1609 struct rsnd_mod *mod),
1610 struct rsnd_kctrl_cfg *cfg,
1611 const char * const *texts,
1612 int size,
1613 u32 max)
1614 {
1615 struct snd_card *card = rtd->card->snd_card;
1616 struct snd_kcontrol *kctrl;
1617 struct snd_kcontrol_new knew = {
1618 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1619 .name = name,
1620 .info = rsnd_kctrl_info,
1621 .index = rtd->num,
1622 .get = rsnd_kctrl_get,
1623 .put = rsnd_kctrl_put,
1624 };
1625 int ret;
1626
1627
1628
1629
1630
1631
1632 list_for_each_entry(kctrl, &card->controls, list) {
1633 struct rsnd_kctrl_cfg *c = kctrl->private_data;
1634
1635 if (c == cfg)
1636 return 0;
1637 }
1638
1639 if (size > RSND_MAX_CHANNELS)
1640 return -EINVAL;
1641
1642 kctrl = snd_ctl_new1(&knew, cfg);
1643 if (!kctrl)
1644 return -ENOMEM;
1645
1646 ret = snd_ctl_add(card, kctrl);
1647 if (ret < 0)
1648 return ret;
1649
1650 cfg->texts = texts;
1651 cfg->max = max;
1652 cfg->size = size;
1653 cfg->accept = accept;
1654 cfg->update = update;
1655 cfg->card = card;
1656 cfg->kctrl = kctrl;
1657 cfg->io = io;
1658 cfg->mod = mod;
1659
1660 return 0;
1661 }
1662
1663
1664
1665
1666 static const struct snd_soc_component_driver rsnd_soc_component = {
1667 .ops = &rsnd_pcm_ops,
1668 .name = "rsnd",
1669 };
1670
1671 static int rsnd_rdai_continuance_probe(struct rsnd_priv *priv,
1672 struct rsnd_dai_stream *io)
1673 {
1674 int ret;
1675
1676 ret = rsnd_dai_call(probe, io, priv);
1677 if (ret == -EAGAIN) {
1678 struct rsnd_mod *ssi_mod = rsnd_io_to_mod_ssi(io);
1679 struct rsnd_mod *mod;
1680 int i;
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693 rsnd_dai_call(remove, io, priv);
1694
1695
1696
1697
1698
1699 for_each_rsnd_mod(i, mod, io)
1700 rsnd_dai_disconnect(mod, io, i);
1701 rsnd_dai_connect(ssi_mod, io, RSND_MOD_SSI);
1702
1703
1704
1705
1706 rsnd_dai_call(fallback, io, priv);
1707
1708
1709
1710
1711
1712 ret = rsnd_dai_call(probe, io, priv);
1713 }
1714
1715 return ret;
1716 }
1717
1718
1719
1720
1721 static int rsnd_probe(struct platform_device *pdev)
1722 {
1723 struct rsnd_priv *priv;
1724 struct device *dev = &pdev->dev;
1725 struct rsnd_dai *rdai;
1726 int (*probe_func[])(struct rsnd_priv *priv) = {
1727 rsnd_gen_probe,
1728 rsnd_dma_probe,
1729 rsnd_ssi_probe,
1730 rsnd_ssiu_probe,
1731 rsnd_src_probe,
1732 rsnd_ctu_probe,
1733 rsnd_mix_probe,
1734 rsnd_dvc_probe,
1735 rsnd_cmd_probe,
1736 rsnd_adg_probe,
1737 rsnd_dai_probe,
1738 };
1739 int ret, i;
1740
1741
1742
1743
1744 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
1745 if (!priv)
1746 return -ENODEV;
1747
1748 priv->pdev = pdev;
1749 priv->flags = (unsigned long)of_device_get_match_data(dev);
1750 spin_lock_init(&priv->lock);
1751
1752
1753
1754
1755 for (i = 0; i < ARRAY_SIZE(probe_func); i++) {
1756 ret = probe_func[i](priv);
1757 if (ret)
1758 return ret;
1759 }
1760
1761 for_each_rsnd_dai(rdai, priv, i) {
1762 ret = rsnd_rdai_continuance_probe(priv, &rdai->playback);
1763 if (ret)
1764 goto exit_snd_probe;
1765
1766 ret = rsnd_rdai_continuance_probe(priv, &rdai->capture);
1767 if (ret)
1768 goto exit_snd_probe;
1769 }
1770
1771 dev_set_drvdata(dev, priv);
1772
1773
1774
1775
1776 ret = devm_snd_soc_register_component(dev, &rsnd_soc_component,
1777 priv->daidrv, rsnd_rdai_nr(priv));
1778 if (ret < 0) {
1779 dev_err(dev, "cannot snd dai register\n");
1780 goto exit_snd_probe;
1781 }
1782
1783 pm_runtime_enable(dev);
1784
1785 dev_info(dev, "probed\n");
1786 return ret;
1787
1788 exit_snd_probe:
1789 for_each_rsnd_dai(rdai, priv, i) {
1790 rsnd_dai_call(remove, &rdai->playback, priv);
1791 rsnd_dai_call(remove, &rdai->capture, priv);
1792 }
1793
1794
1795
1796
1797
1798
1799
1800 rsnd_adg_remove(priv);
1801
1802 return ret;
1803 }
1804
1805 static int rsnd_remove(struct platform_device *pdev)
1806 {
1807 struct rsnd_priv *priv = dev_get_drvdata(&pdev->dev);
1808 struct rsnd_dai *rdai;
1809 void (*remove_func[])(struct rsnd_priv *priv) = {
1810 rsnd_ssi_remove,
1811 rsnd_ssiu_remove,
1812 rsnd_src_remove,
1813 rsnd_ctu_remove,
1814 rsnd_mix_remove,
1815 rsnd_dvc_remove,
1816 rsnd_cmd_remove,
1817 rsnd_adg_remove,
1818 };
1819 int ret = 0, i;
1820
1821 snd_soc_disconnect_sync(&pdev->dev);
1822
1823 pm_runtime_disable(&pdev->dev);
1824
1825 for_each_rsnd_dai(rdai, priv, i) {
1826 ret |= rsnd_dai_call(remove, &rdai->playback, priv);
1827 ret |= rsnd_dai_call(remove, &rdai->capture, priv);
1828 }
1829
1830 for (i = 0; i < ARRAY_SIZE(remove_func); i++)
1831 remove_func[i](priv);
1832
1833 return ret;
1834 }
1835
1836 static int __maybe_unused rsnd_suspend(struct device *dev)
1837 {
1838 struct rsnd_priv *priv = dev_get_drvdata(dev);
1839
1840 rsnd_adg_clk_disable(priv);
1841
1842 return 0;
1843 }
1844
1845 static int __maybe_unused rsnd_resume(struct device *dev)
1846 {
1847 struct rsnd_priv *priv = dev_get_drvdata(dev);
1848
1849 rsnd_adg_clk_enable(priv);
1850
1851 return 0;
1852 }
1853
1854 static const struct dev_pm_ops rsnd_pm_ops = {
1855 SET_SYSTEM_SLEEP_PM_OPS(rsnd_suspend, rsnd_resume)
1856 };
1857
1858 static struct platform_driver rsnd_driver = {
1859 .driver = {
1860 .name = "rcar_sound",
1861 .pm = &rsnd_pm_ops,
1862 .of_match_table = rsnd_of_match,
1863 },
1864 .probe = rsnd_probe,
1865 .remove = rsnd_remove,
1866 };
1867 module_platform_driver(rsnd_driver);
1868
1869 MODULE_LICENSE("GPL v2");
1870 MODULE_DESCRIPTION("Renesas R-Car audio driver");
1871 MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
1872 MODULE_ALIAS("platform:rcar-pcm-audio");