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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
109static 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};
117MODULE_DEVICE_TABLE(of, rsnd_of_match);
118
119
120
121
122void 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
133struct 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
144char *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
173u32 *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
180int rsnd_mod_id_raw(struct rsnd_mod *mod)
181{
182 return mod->id;
183}
184
185int 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
193int 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
201int 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 0;
220}
221
222void rsnd_mod_quit(struct rsnd_mod *mod)
223{
224 clk_unprepare(mod->clk);
225 mod->clk = NULL;
226}
227
228void 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 *rdai;
234 int i;
235
236 for_each_rsnd_dai(rdai, priv, i) {
237 struct rsnd_dai_stream *io = &rdai->playback;
238
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
248int 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
257int 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
274int 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
303int rsnd_channel_normalization(int chan)
304{
305 if (WARN_ON((chan > 8) || (chan < 0)))
306 return 0;
307
308
309 if (chan == 6)
310 chan = 8;
311
312 return chan;
313}
314
315int 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
330int 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
341int rsnd_runtime_is_tdm(struct rsnd_dai_stream *io)
342{
343 return rsnd_runtime_channel_for_ssi(io) >= 6;
344}
345
346int 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
354u32 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
377u32 rsnd_get_dalign(struct rsnd_mod *mod, struct rsnd_dai_stream *io)
378{
379 static const u32 dalign_values[8] = {
380 0x76543210, 0x00000032, 0x00007654, 0x00000076,
381 0xfedcba98, 0x000000ba, 0x0000fedc, 0x000000fe,
382 };
383 int id = 0;
384 struct rsnd_mod *ssiu = rsnd_io_to_mod_ssiu(io);
385 struct rsnd_mod *target;
386 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
387 u32 dalign;
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410 if (rsnd_io_is_play(io)) {
411 struct rsnd_mod *src = rsnd_io_to_mod_src(io);
412
413 target = src ? src : ssiu;
414 } else {
415 struct rsnd_mod *cmd = rsnd_io_to_mod_cmd(io);
416
417 target = cmd ? cmd : ssiu;
418 }
419
420 if (mod == ssiu)
421 id = rsnd_mod_id_sub(mod);
422
423 dalign = dalign_values[id];
424
425 if (mod == target && snd_pcm_format_width(runtime->format) == 16) {
426
427 dalign = (dalign & 0xf0f0f0f0) >> 4 |
428 (dalign & 0x0f0f0f0f) << 4;
429 }
430
431 return dalign;
432}
433
434u32 rsnd_get_busif_shift(struct rsnd_dai_stream *io, struct rsnd_mod *mod)
435{
436 enum rsnd_mod_type playback_mods[] = {
437 RSND_MOD_SRC,
438 RSND_MOD_CMD,
439 RSND_MOD_SSIU,
440 };
441 enum rsnd_mod_type capture_mods[] = {
442 RSND_MOD_CMD,
443 RSND_MOD_SRC,
444 RSND_MOD_SSIU,
445 };
446 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
447 struct rsnd_mod *tmod = NULL;
448 enum rsnd_mod_type *mods =
449 rsnd_io_is_play(io) ?
450 playback_mods : capture_mods;
451 int i;
452
453
454
455
456
457
458
459
460
461 if (snd_pcm_format_width(runtime->format) != 24)
462 return 0;
463
464 for (i = 0; i < ARRAY_SIZE(playback_mods); i++) {
465 tmod = rsnd_io_to_mod(io, mods[i]);
466 if (tmod)
467 break;
468 }
469
470 if (tmod != mod)
471 return 0;
472
473 if (rsnd_io_is_play(io))
474 return (0 << 20) |
475 (8 << 16);
476 else
477 return (1 << 20) |
478 (8 << 16);
479}
480
481
482
483
484struct rsnd_mod *rsnd_mod_next(int *iterator,
485 struct rsnd_dai_stream *io,
486 enum rsnd_mod_type *array,
487 int array_size)
488{
489 int max = array ? array_size : RSND_MOD_MAX;
490
491 for (; *iterator < max; (*iterator)++) {
492 enum rsnd_mod_type type = (array) ? array[*iterator] : *iterator;
493 struct rsnd_mod *mod = rsnd_io_to_mod(io, type);
494
495 if (mod)
496 return mod;
497 }
498
499 return NULL;
500}
501
502static enum rsnd_mod_type rsnd_mod_sequence[][RSND_MOD_MAX] = {
503 {
504
505 RSND_MOD_AUDMAPP,
506 RSND_MOD_AUDMA,
507 RSND_MOD_DVC,
508 RSND_MOD_MIX,
509 RSND_MOD_CTU,
510 RSND_MOD_CMD,
511 RSND_MOD_SRC,
512 RSND_MOD_SSIU,
513 RSND_MOD_SSIM3,
514 RSND_MOD_SSIM2,
515 RSND_MOD_SSIM1,
516 RSND_MOD_SSIP,
517 RSND_MOD_SSI,
518 }, {
519
520 RSND_MOD_AUDMAPP,
521 RSND_MOD_AUDMA,
522 RSND_MOD_SSIM3,
523 RSND_MOD_SSIM2,
524 RSND_MOD_SSIM1,
525 RSND_MOD_SSIP,
526 RSND_MOD_SSI,
527 RSND_MOD_SSIU,
528 RSND_MOD_DVC,
529 RSND_MOD_MIX,
530 RSND_MOD_CTU,
531 RSND_MOD_CMD,
532 RSND_MOD_SRC,
533 },
534};
535
536static int rsnd_status_update(u32 *status,
537 int shift, int add, int timing)
538{
539 u32 mask = 0xF << shift;
540 u8 val = (*status >> shift) & 0xF;
541 u8 next_val = (val + add) & 0xF;
542 int func_call = (val == timing);
543
544 if (next_val == 0xF)
545 func_call = 0;
546 else
547 *status = (*status & ~mask) + (next_val << shift);
548
549 return func_call;
550}
551
552#define rsnd_dai_call(fn, io, param...) \
553({ \
554 struct device *dev = rsnd_priv_to_dev(rsnd_io_to_priv(io)); \
555 struct rsnd_mod *mod; \
556 int is_play = rsnd_io_is_play(io); \
557 int ret = 0, i; \
558 enum rsnd_mod_type *types = rsnd_mod_sequence[is_play]; \
559 for_each_rsnd_mod_arrays(i, mod, io, types, RSND_MOD_MAX) { \
560 int tmp = 0; \
561 u32 *status = mod->ops->get_status(mod, io, types[i]); \
562 int func_call = rsnd_status_update(status, \
563 __rsnd_mod_shift_##fn, \
564 __rsnd_mod_add_##fn, \
565 __rsnd_mod_call_##fn); \
566 rsnd_dbg_dai_call(dev, "%s\t0x%08x %s\n", \
567 rsnd_mod_name(mod), *status, \
568 (func_call && (mod)->ops->fn) ? #fn : ""); \
569 if (func_call && (mod)->ops->fn) \
570 tmp = (mod)->ops->fn(mod, io, param); \
571 if (tmp && (tmp != -EPROBE_DEFER)) \
572 dev_err(dev, "%s : %s error %d\n", \
573 rsnd_mod_name(mod), #fn, tmp); \
574 ret |= tmp; \
575 } \
576 ret; \
577})
578
579int rsnd_dai_connect(struct rsnd_mod *mod,
580 struct rsnd_dai_stream *io,
581 enum rsnd_mod_type type)
582{
583 struct rsnd_priv *priv;
584 struct device *dev;
585
586 if (!mod)
587 return -EIO;
588
589 if (io->mod[type] == mod)
590 return 0;
591
592 if (io->mod[type])
593 return -EINVAL;
594
595 priv = rsnd_mod_to_priv(mod);
596 dev = rsnd_priv_to_dev(priv);
597
598 io->mod[type] = mod;
599
600 dev_dbg(dev, "%s is connected to io (%s)\n",
601 rsnd_mod_name(mod),
602 rsnd_io_is_play(io) ? "Playback" : "Capture");
603
604 return 0;
605}
606
607static void rsnd_dai_disconnect(struct rsnd_mod *mod,
608 struct rsnd_dai_stream *io,
609 enum rsnd_mod_type type)
610{
611 io->mod[type] = NULL;
612}
613
614int rsnd_rdai_channels_ctrl(struct rsnd_dai *rdai,
615 int max_channels)
616{
617 if (max_channels > 0)
618 rdai->max_channels = max_channels;
619
620 return rdai->max_channels;
621}
622
623int rsnd_rdai_ssi_lane_ctrl(struct rsnd_dai *rdai,
624 int ssi_lane)
625{
626 if (ssi_lane > 0)
627 rdai->ssi_lane = ssi_lane;
628
629 return rdai->ssi_lane;
630}
631
632int rsnd_rdai_width_ctrl(struct rsnd_dai *rdai, int width)
633{
634 if (width > 0)
635 rdai->chan_width = width;
636
637 return rdai->chan_width;
638}
639
640struct rsnd_dai *rsnd_rdai_get(struct rsnd_priv *priv, int id)
641{
642 if ((id < 0) || (id >= rsnd_rdai_nr(priv)))
643 return NULL;
644
645 return priv->rdai + id;
646}
647
648static struct snd_soc_dai_driver
649*rsnd_daidrv_get(struct rsnd_priv *priv, int id)
650{
651 if ((id < 0) || (id >= rsnd_rdai_nr(priv)))
652 return NULL;
653
654 return priv->daidrv + id;
655}
656
657#define rsnd_dai_to_priv(dai) snd_soc_dai_get_drvdata(dai)
658static struct rsnd_dai *rsnd_dai_to_rdai(struct snd_soc_dai *dai)
659{
660 struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
661
662 return rsnd_rdai_get(priv, dai->id);
663}
664
665
666
667
668void rsnd_dai_period_elapsed(struct rsnd_dai_stream *io)
669{
670 struct snd_pcm_substream *substream = io->substream;
671
672
673
674
675
676
677
678
679 snd_pcm_period_elapsed(substream);
680}
681
682static void rsnd_dai_stream_init(struct rsnd_dai_stream *io,
683 struct snd_pcm_substream *substream)
684{
685 io->substream = substream;
686}
687
688static void rsnd_dai_stream_quit(struct rsnd_dai_stream *io)
689{
690 io->substream = NULL;
691}
692
693static
694struct snd_soc_dai *rsnd_substream_to_dai(struct snd_pcm_substream *substream)
695{
696 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
697
698 return asoc_rtd_to_cpu(rtd, 0);
699}
700
701static
702struct rsnd_dai_stream *rsnd_rdai_to_io(struct rsnd_dai *rdai,
703 struct snd_pcm_substream *substream)
704{
705 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
706 return &rdai->playback;
707 else
708 return &rdai->capture;
709}
710
711static int rsnd_soc_dai_trigger(struct snd_pcm_substream *substream, int cmd,
712 struct snd_soc_dai *dai)
713{
714 struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
715 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
716 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
717 int ret;
718 unsigned long flags;
719
720 spin_lock_irqsave(&priv->lock, flags);
721
722 switch (cmd) {
723 case SNDRV_PCM_TRIGGER_START:
724 case SNDRV_PCM_TRIGGER_RESUME:
725 ret = rsnd_dai_call(init, io, priv);
726 if (ret < 0)
727 goto dai_trigger_end;
728
729 ret = rsnd_dai_call(start, io, priv);
730 if (ret < 0)
731 goto dai_trigger_end;
732
733 ret = rsnd_dai_call(irq, io, priv, 1);
734 if (ret < 0)
735 goto dai_trigger_end;
736
737 break;
738 case SNDRV_PCM_TRIGGER_STOP:
739 case SNDRV_PCM_TRIGGER_SUSPEND:
740 ret = rsnd_dai_call(irq, io, priv, 0);
741
742 ret |= rsnd_dai_call(stop, io, priv);
743
744 ret |= rsnd_dai_call(quit, io, priv);
745
746 break;
747 default:
748 ret = -EINVAL;
749 }
750
751dai_trigger_end:
752 spin_unlock_irqrestore(&priv->lock, flags);
753
754 return ret;
755}
756
757static int rsnd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
758{
759 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
760
761
762 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
763 case SND_SOC_DAIFMT_CBM_CFM:
764 rdai->clk_master = 0;
765 break;
766 case SND_SOC_DAIFMT_CBS_CFS:
767 rdai->clk_master = 1;
768 break;
769 default:
770 return -EINVAL;
771 }
772
773
774 rdai->bit_clk_inv = 0;
775 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
776 case SND_SOC_DAIFMT_I2S:
777 rdai->sys_delay = 0;
778 rdai->data_alignment = 0;
779 rdai->frm_clk_inv = 0;
780 break;
781 case SND_SOC_DAIFMT_LEFT_J:
782 case SND_SOC_DAIFMT_DSP_B:
783 rdai->sys_delay = 1;
784 rdai->data_alignment = 0;
785 rdai->frm_clk_inv = 1;
786 break;
787 case SND_SOC_DAIFMT_RIGHT_J:
788 rdai->sys_delay = 1;
789 rdai->data_alignment = 1;
790 rdai->frm_clk_inv = 1;
791 break;
792 case SND_SOC_DAIFMT_DSP_A:
793 rdai->sys_delay = 0;
794 rdai->data_alignment = 0;
795 rdai->frm_clk_inv = 1;
796 break;
797 }
798
799
800 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
801 case SND_SOC_DAIFMT_NB_IF:
802 rdai->frm_clk_inv = !rdai->frm_clk_inv;
803 break;
804 case SND_SOC_DAIFMT_IB_NF:
805 rdai->bit_clk_inv = !rdai->bit_clk_inv;
806 break;
807 case SND_SOC_DAIFMT_IB_IF:
808 rdai->bit_clk_inv = !rdai->bit_clk_inv;
809 rdai->frm_clk_inv = !rdai->frm_clk_inv;
810 break;
811 case SND_SOC_DAIFMT_NB_NF:
812 default:
813 break;
814 }
815
816 return 0;
817}
818
819static int rsnd_soc_set_dai_tdm_slot(struct snd_soc_dai *dai,
820 u32 tx_mask, u32 rx_mask,
821 int slots, int slot_width)
822{
823 struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
824 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
825 struct device *dev = rsnd_priv_to_dev(priv);
826
827 switch (slot_width) {
828 case 16:
829 case 24:
830 case 32:
831 break;
832 default:
833
834 slot_width = 32;
835 }
836
837 switch (slots) {
838 case 2:
839
840 case 6:
841 case 8:
842
843 rsnd_rdai_channels_set(rdai, slots);
844 rsnd_rdai_ssi_lane_set(rdai, 1);
845 rsnd_rdai_width_set(rdai, slot_width);
846 break;
847 default:
848 dev_err(dev, "unsupported TDM slots (%d)\n", slots);
849 return -EINVAL;
850 }
851
852 return 0;
853}
854
855static unsigned int rsnd_soc_hw_channels_list[] = {
856 2, 6, 8,
857};
858
859static unsigned int rsnd_soc_hw_rate_list[] = {
860 8000,
861 11025,
862 16000,
863 22050,
864 32000,
865 44100,
866 48000,
867 64000,
868 88200,
869 96000,
870 176400,
871 192000,
872};
873
874static int rsnd_soc_hw_rule(struct rsnd_dai *rdai,
875 unsigned int *list, int list_num,
876 struct snd_interval *baseline, struct snd_interval *iv)
877{
878 struct snd_interval p;
879 unsigned int rate;
880 int i;
881
882 snd_interval_any(&p);
883 p.min = UINT_MAX;
884 p.max = 0;
885
886 for (i = 0; i < list_num; i++) {
887
888 if (!snd_interval_test(iv, list[i]))
889 continue;
890
891 rate = rsnd_ssi_clk_query(rdai,
892 baseline->min, list[i], NULL);
893 if (rate > 0) {
894 p.min = min(p.min, list[i]);
895 p.max = max(p.max, list[i]);
896 }
897
898 rate = rsnd_ssi_clk_query(rdai,
899 baseline->max, list[i], NULL);
900 if (rate > 0) {
901 p.min = min(p.min, list[i]);
902 p.max = max(p.max, list[i]);
903 }
904 }
905
906 return snd_interval_refine(iv, &p);
907}
908
909static int rsnd_soc_hw_rule_rate(struct snd_pcm_hw_params *params,
910 struct snd_pcm_hw_rule *rule)
911{
912 struct snd_interval *ic_ = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
913 struct snd_interval *ir = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
914 struct snd_interval ic;
915 struct rsnd_dai_stream *io = rule->private;
916 struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
917
918
919
920
921
922
923 ic = *ic_;
924 ic.min =
925 ic.max = rsnd_runtime_channel_for_ssi_with_params(io, params);
926
927 return rsnd_soc_hw_rule(rdai, rsnd_soc_hw_rate_list,
928 ARRAY_SIZE(rsnd_soc_hw_rate_list),
929 &ic, ir);
930}
931
932static int rsnd_soc_hw_rule_channels(struct snd_pcm_hw_params *params,
933 struct snd_pcm_hw_rule *rule)
934{
935 struct snd_interval *ic_ = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
936 struct snd_interval *ir = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
937 struct snd_interval ic;
938 struct rsnd_dai_stream *io = rule->private;
939 struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
940
941
942
943
944
945
946 ic = *ic_;
947 ic.min =
948 ic.max = rsnd_runtime_channel_for_ssi_with_params(io, params);
949
950 return rsnd_soc_hw_rule(rdai, rsnd_soc_hw_channels_list,
951 ARRAY_SIZE(rsnd_soc_hw_channels_list),
952 ir, &ic);
953}
954
955static const struct snd_pcm_hardware rsnd_pcm_hardware = {
956 .info = SNDRV_PCM_INFO_INTERLEAVED |
957 SNDRV_PCM_INFO_MMAP |
958 SNDRV_PCM_INFO_MMAP_VALID,
959 .buffer_bytes_max = 64 * 1024,
960 .period_bytes_min = 32,
961 .period_bytes_max = 8192,
962 .periods_min = 1,
963 .periods_max = 32,
964 .fifo_size = 256,
965};
966
967static int rsnd_soc_dai_startup(struct snd_pcm_substream *substream,
968 struct snd_soc_dai *dai)
969{
970 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
971 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
972 struct snd_pcm_hw_constraint_list *constraint = &rdai->constraint;
973 struct snd_pcm_runtime *runtime = substream->runtime;
974 unsigned int max_channels = rsnd_rdai_channels_get(rdai);
975 int i;
976
977 rsnd_dai_stream_init(io, substream);
978
979
980
981
982
983 constraint->list = rsnd_soc_hw_channels_list;
984 constraint->count = 0;
985 constraint->mask = 0;
986
987 for (i = 0; i < ARRAY_SIZE(rsnd_soc_hw_channels_list); i++) {
988 if (rsnd_soc_hw_channels_list[i] > max_channels)
989 break;
990 constraint->count = i + 1;
991 }
992
993 snd_soc_set_runtime_hwparams(substream, &rsnd_pcm_hardware);
994
995 snd_pcm_hw_constraint_list(runtime, 0,
996 SNDRV_PCM_HW_PARAM_CHANNELS, constraint);
997
998 snd_pcm_hw_constraint_integer(runtime,
999 SNDRV_PCM_HW_PARAM_PERIODS);
1000
1001
1002
1003
1004
1005 if (rsnd_rdai_is_clk_master(rdai)) {
1006 int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
1007
1008 snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
1009 rsnd_soc_hw_rule_rate,
1010 is_play ? &rdai->playback : &rdai->capture,
1011 SNDRV_PCM_HW_PARAM_CHANNELS, -1);
1012 snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
1013 rsnd_soc_hw_rule_channels,
1014 is_play ? &rdai->playback : &rdai->capture,
1015 SNDRV_PCM_HW_PARAM_RATE, -1);
1016 }
1017
1018 return 0;
1019}
1020
1021static void rsnd_soc_dai_shutdown(struct snd_pcm_substream *substream,
1022 struct snd_soc_dai *dai)
1023{
1024 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
1025 struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai);
1026 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
1027
1028
1029
1030
1031 rsnd_dai_call(cleanup, io, priv);
1032
1033 rsnd_dai_stream_quit(io);
1034}
1035
1036static int rsnd_soc_dai_prepare(struct snd_pcm_substream *substream,
1037 struct snd_soc_dai *dai)
1038{
1039 struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
1040 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
1041 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
1042
1043 return rsnd_dai_call(prepare, io, priv);
1044}
1045
1046static const struct snd_soc_dai_ops rsnd_soc_dai_ops = {
1047 .startup = rsnd_soc_dai_startup,
1048 .shutdown = rsnd_soc_dai_shutdown,
1049 .trigger = rsnd_soc_dai_trigger,
1050 .set_fmt = rsnd_soc_dai_set_fmt,
1051 .set_tdm_slot = rsnd_soc_set_dai_tdm_slot,
1052 .prepare = rsnd_soc_dai_prepare,
1053};
1054
1055static void rsnd_parse_tdm_split_mode(struct rsnd_priv *priv,
1056 struct rsnd_dai_stream *io,
1057 struct device_node *dai_np)
1058{
1059 struct device *dev = rsnd_priv_to_dev(priv);
1060 struct device_node *ssiu_np = rsnd_ssiu_of_node(priv);
1061 struct device_node *np;
1062 int is_play = rsnd_io_is_play(io);
1063 int i;
1064
1065 if (!ssiu_np)
1066 return;
1067
1068
1069
1070
1071
1072 for (i = 0;; i++) {
1073 struct device_node *node = is_play ?
1074 of_parse_phandle(dai_np, "playback", i) :
1075 of_parse_phandle(dai_np, "capture", i);
1076
1077 if (!node)
1078 break;
1079
1080 for_each_child_of_node(ssiu_np, np) {
1081 if (np == node) {
1082 rsnd_flags_set(io, RSND_STREAM_TDM_SPLIT);
1083 dev_dbg(dev, "%s is part of TDM Split\n", io->name);
1084 }
1085 }
1086
1087 of_node_put(node);
1088 }
1089
1090 of_node_put(ssiu_np);
1091}
1092
1093static void rsnd_parse_connect_simple(struct rsnd_priv *priv,
1094 struct rsnd_dai_stream *io,
1095 struct device_node *dai_np)
1096{
1097 if (!rsnd_io_to_mod_ssi(io))
1098 return;
1099
1100 rsnd_parse_tdm_split_mode(priv, io, dai_np);
1101}
1102
1103static void rsnd_parse_connect_graph(struct rsnd_priv *priv,
1104 struct rsnd_dai_stream *io,
1105 struct device_node *endpoint)
1106{
1107 struct device *dev = rsnd_priv_to_dev(priv);
1108 struct device_node *remote_node;
1109
1110 if (!rsnd_io_to_mod_ssi(io))
1111 return;
1112
1113 remote_node = of_graph_get_remote_port_parent(endpoint);
1114
1115
1116 if (strstr(remote_node->full_name, "hdmi@fead0000")) {
1117 rsnd_flags_set(io, RSND_STREAM_HDMI0);
1118 dev_dbg(dev, "%s connected to HDMI0\n", io->name);
1119 }
1120
1121
1122 if (strstr(remote_node->full_name, "hdmi@feae0000")) {
1123 rsnd_flags_set(io, RSND_STREAM_HDMI1);
1124 dev_dbg(dev, "%s connected to HDMI1\n", io->name);
1125 }
1126
1127 rsnd_parse_tdm_split_mode(priv, io, endpoint);
1128
1129 of_node_put(remote_node);
1130}
1131
1132void rsnd_parse_connect_common(struct rsnd_dai *rdai,
1133 struct rsnd_mod* (*mod_get)(struct rsnd_priv *priv, int id),
1134 struct device_node *node,
1135 struct device_node *playback,
1136 struct device_node *capture)
1137{
1138 struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai);
1139 struct device_node *np;
1140 int i;
1141
1142 if (!node)
1143 return;
1144
1145 i = 0;
1146 for_each_child_of_node(node, np) {
1147 struct rsnd_mod *mod = mod_get(priv, i);
1148
1149 if (np == playback)
1150 rsnd_dai_connect(mod, &rdai->playback, mod->type);
1151 if (np == capture)
1152 rsnd_dai_connect(mod, &rdai->capture, mod->type);
1153 i++;
1154 }
1155
1156 of_node_put(node);
1157}
1158
1159static struct device_node *rsnd_dai_of_node(struct rsnd_priv *priv,
1160 int *is_graph)
1161{
1162 struct device *dev = rsnd_priv_to_dev(priv);
1163 struct device_node *np = dev->of_node;
1164 struct device_node *dai_node;
1165 struct device_node *ret;
1166
1167 *is_graph = 0;
1168
1169
1170
1171
1172
1173 dai_node = of_get_child_by_name(np, RSND_NODE_DAI);
1174 if (dai_node) {
1175 ret = dai_node;
1176 goto of_node_compatible;
1177 }
1178
1179 ret = np;
1180
1181 dai_node = of_graph_get_next_endpoint(np, NULL);
1182 if (dai_node)
1183 goto of_node_graph;
1184
1185 return NULL;
1186
1187of_node_graph:
1188 *is_graph = 1;
1189of_node_compatible:
1190 of_node_put(dai_node);
1191
1192 return ret;
1193}
1194
1195
1196#define PREALLOC_BUFFER (32 * 1024)
1197#define PREALLOC_BUFFER_MAX (32 * 1024)
1198
1199static int rsnd_preallocate_pages(struct snd_soc_pcm_runtime *rtd,
1200 struct rsnd_dai_stream *io,
1201 int stream)
1202{
1203 struct rsnd_priv *priv = rsnd_io_to_priv(io);
1204 struct device *dev = rsnd_priv_to_dev(priv);
1205 struct snd_pcm_substream *substream;
1206
1207
1208
1209
1210
1211
1212 if (io->dmac_dev)
1213 dev = io->dmac_dev;
1214
1215 for (substream = rtd->pcm->streams[stream].substream;
1216 substream;
1217 substream = substream->next) {
1218 snd_pcm_set_managed_buffer(substream,
1219 SNDRV_DMA_TYPE_DEV,
1220 dev,
1221 PREALLOC_BUFFER, PREALLOC_BUFFER_MAX);
1222 }
1223
1224 return 0;
1225}
1226
1227static int rsnd_pcm_new(struct snd_soc_pcm_runtime *rtd,
1228 struct snd_soc_dai *dai)
1229{
1230 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
1231 int ret;
1232
1233 ret = rsnd_dai_call(pcm_new, &rdai->playback, rtd);
1234 if (ret)
1235 return ret;
1236
1237 ret = rsnd_dai_call(pcm_new, &rdai->capture, rtd);
1238 if (ret)
1239 return ret;
1240
1241 ret = rsnd_preallocate_pages(rtd, &rdai->playback,
1242 SNDRV_PCM_STREAM_PLAYBACK);
1243 if (ret)
1244 return ret;
1245
1246 ret = rsnd_preallocate_pages(rtd, &rdai->capture,
1247 SNDRV_PCM_STREAM_CAPTURE);
1248 if (ret)
1249 return ret;
1250
1251 return 0;
1252}
1253
1254static void __rsnd_dai_probe(struct rsnd_priv *priv,
1255 struct device_node *dai_np,
1256 int dai_i)
1257{
1258 struct rsnd_dai_stream *io_playback;
1259 struct rsnd_dai_stream *io_capture;
1260 struct snd_soc_dai_driver *drv;
1261 struct rsnd_dai *rdai;
1262 struct device *dev = rsnd_priv_to_dev(priv);
1263 int io_i;
1264
1265 rdai = rsnd_rdai_get(priv, dai_i);
1266 drv = rsnd_daidrv_get(priv, dai_i);
1267 io_playback = &rdai->playback;
1268 io_capture = &rdai->capture;
1269
1270 snprintf(rdai->name, RSND_DAI_NAME_SIZE, "rsnd-dai.%d", dai_i);
1271
1272 rdai->priv = priv;
1273 drv->name = rdai->name;
1274 drv->ops = &rsnd_soc_dai_ops;
1275 drv->pcm_new = rsnd_pcm_new;
1276
1277 snprintf(io_playback->name, RSND_DAI_NAME_SIZE,
1278 "DAI%d Playback", dai_i);
1279 drv->playback.rates = RSND_RATES;
1280 drv->playback.formats = RSND_FMTS;
1281 drv->playback.channels_min = 2;
1282 drv->playback.channels_max = 8;
1283 drv->playback.stream_name = io_playback->name;
1284
1285 snprintf(io_capture->name, RSND_DAI_NAME_SIZE,
1286 "DAI%d Capture", dai_i);
1287 drv->capture.rates = RSND_RATES;
1288 drv->capture.formats = RSND_FMTS;
1289 drv->capture.channels_min = 2;
1290 drv->capture.channels_max = 8;
1291 drv->capture.stream_name = io_capture->name;
1292
1293 io_playback->rdai = rdai;
1294 io_capture->rdai = rdai;
1295 rsnd_rdai_channels_set(rdai, 2);
1296 rsnd_rdai_ssi_lane_set(rdai, 1);
1297 rsnd_rdai_width_set(rdai, 32);
1298
1299 for (io_i = 0;; io_i++) {
1300 struct device_node *playback = of_parse_phandle(dai_np, "playback", io_i);
1301 struct device_node *capture = of_parse_phandle(dai_np, "capture", io_i);
1302
1303 if (!playback && !capture)
1304 break;
1305
1306 rsnd_parse_connect_ssi(rdai, playback, capture);
1307 rsnd_parse_connect_ssiu(rdai, playback, capture);
1308 rsnd_parse_connect_src(rdai, playback, capture);
1309 rsnd_parse_connect_ctu(rdai, playback, capture);
1310 rsnd_parse_connect_mix(rdai, playback, capture);
1311 rsnd_parse_connect_dvc(rdai, playback, capture);
1312
1313 of_node_put(playback);
1314 of_node_put(capture);
1315 }
1316
1317 if (rsnd_ssi_is_pin_sharing(io_capture) ||
1318 rsnd_ssi_is_pin_sharing(io_playback)) {
1319
1320 drv->symmetric_rate = 1;
1321 }
1322
1323 dev_dbg(dev, "%s (%s/%s)\n", rdai->name,
1324 rsnd_io_to_mod_ssi(io_playback) ? "play" : " -- ",
1325 rsnd_io_to_mod_ssi(io_capture) ? "capture" : " -- ");
1326}
1327
1328static int rsnd_dai_probe(struct rsnd_priv *priv)
1329{
1330 struct device_node *dai_node;
1331 struct device_node *dai_np;
1332 struct snd_soc_dai_driver *rdrv;
1333 struct device *dev = rsnd_priv_to_dev(priv);
1334 struct rsnd_dai *rdai;
1335 int nr;
1336 int is_graph;
1337 int dai_i;
1338
1339 dai_node = rsnd_dai_of_node(priv, &is_graph);
1340 if (is_graph)
1341 nr = of_graph_get_endpoint_count(dai_node);
1342 else
1343 nr = of_get_child_count(dai_node);
1344
1345 if (!nr)
1346 return -EINVAL;
1347
1348 rdrv = devm_kcalloc(dev, nr, sizeof(*rdrv), GFP_KERNEL);
1349 rdai = devm_kcalloc(dev, nr, sizeof(*rdai), GFP_KERNEL);
1350 if (!rdrv || !rdai)
1351 return -ENOMEM;
1352
1353 priv->rdai_nr = nr;
1354 priv->daidrv = rdrv;
1355 priv->rdai = rdai;
1356
1357
1358
1359
1360 dai_i = 0;
1361 if (is_graph) {
1362 for_each_endpoint_of_node(dai_node, dai_np) {
1363 __rsnd_dai_probe(priv, dai_np, dai_i);
1364 if (rsnd_is_gen3(priv)) {
1365 rdai = rsnd_rdai_get(priv, dai_i);
1366
1367 rsnd_parse_connect_graph(priv, &rdai->playback, dai_np);
1368 rsnd_parse_connect_graph(priv, &rdai->capture, dai_np);
1369 }
1370 dai_i++;
1371 }
1372 } else {
1373 for_each_child_of_node(dai_node, dai_np) {
1374 __rsnd_dai_probe(priv, dai_np, dai_i);
1375 if (rsnd_is_gen3(priv)) {
1376 rdai = rsnd_rdai_get(priv, dai_i);
1377
1378 rsnd_parse_connect_simple(priv, &rdai->playback, dai_np);
1379 rsnd_parse_connect_simple(priv, &rdai->capture, dai_np);
1380 }
1381 dai_i++;
1382 }
1383 }
1384
1385 return 0;
1386}
1387
1388
1389
1390
1391static int rsnd_hw_params(struct snd_soc_component *component,
1392 struct snd_pcm_substream *substream,
1393 struct snd_pcm_hw_params *hw_params)
1394{
1395 struct snd_soc_dai *dai = rsnd_substream_to_dai(substream);
1396 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
1397 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
1398 struct snd_soc_pcm_runtime *fe = asoc_substream_to_rtd(substream);
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409 io->converted_rate = 0;
1410 io->converted_chan = 0;
1411 if (fe->dai_link->dynamic) {
1412 struct rsnd_priv *priv = rsnd_io_to_priv(io);
1413 struct device *dev = rsnd_priv_to_dev(priv);
1414 struct snd_soc_dpcm *dpcm;
1415 int stream = substream->stream;
1416
1417 for_each_dpcm_be(fe, stream, dpcm) {
1418 struct snd_pcm_hw_params *be_params = &dpcm->hw_params;
1419
1420 if (params_channels(hw_params) != params_channels(be_params))
1421 io->converted_chan = params_channels(be_params);
1422 if (params_rate(hw_params) != params_rate(be_params))
1423 io->converted_rate = params_rate(be_params);
1424 }
1425 if (io->converted_chan)
1426 dev_dbg(dev, "convert channels = %d\n", io->converted_chan);
1427 if (io->converted_rate) {
1428
1429
1430
1431
1432
1433
1434
1435
1436 int k_up = 6;
1437 int k_down = 6;
1438 int channel;
1439 struct rsnd_mod *src_mod = rsnd_io_to_mod_src(io);
1440
1441 dev_dbg(dev, "convert rate = %d\n", io->converted_rate);
1442
1443 channel = io->converted_chan ? io->converted_chan :
1444 params_channels(hw_params);
1445
1446 switch (rsnd_mod_id(src_mod)) {
1447
1448
1449
1450
1451
1452
1453
1454 case 1:
1455 case 3:
1456 case 4:
1457 if (channel > 4) {
1458 k_down = 2;
1459 break;
1460 }
1461 fallthrough;
1462 case 0:
1463 if (channel > 2)
1464 k_down = 4;
1465 break;
1466
1467
1468 default:
1469 if (channel > 2)
1470 return -EINVAL;
1471 }
1472
1473 if (params_rate(hw_params) > io->converted_rate * k_down) {
1474 hw_param_interval(hw_params, SNDRV_PCM_HW_PARAM_RATE)->min =
1475 io->converted_rate * k_down;
1476 hw_param_interval(hw_params, SNDRV_PCM_HW_PARAM_RATE)->max =
1477 io->converted_rate * k_down;
1478 hw_params->cmask |= SNDRV_PCM_HW_PARAM_RATE;
1479 } else if (params_rate(hw_params) * k_up < io->converted_rate) {
1480 hw_param_interval(hw_params, SNDRV_PCM_HW_PARAM_RATE)->min =
1481 (io->converted_rate + k_up - 1) / k_up;
1482 hw_param_interval(hw_params, SNDRV_PCM_HW_PARAM_RATE)->max =
1483 (io->converted_rate + k_up - 1) / k_up;
1484 hw_params->cmask |= SNDRV_PCM_HW_PARAM_RATE;
1485 }
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495 }
1496 }
1497
1498 return rsnd_dai_call(hw_params, io, substream, hw_params);
1499}
1500
1501static int rsnd_hw_free(struct snd_soc_component *component,
1502 struct snd_pcm_substream *substream)
1503{
1504 struct snd_soc_dai *dai = rsnd_substream_to_dai(substream);
1505 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
1506 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
1507
1508 return rsnd_dai_call(hw_free, io, substream);
1509}
1510
1511static snd_pcm_uframes_t rsnd_pointer(struct snd_soc_component *component,
1512 struct snd_pcm_substream *substream)
1513{
1514 struct snd_soc_dai *dai = rsnd_substream_to_dai(substream);
1515 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
1516 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
1517 snd_pcm_uframes_t pointer = 0;
1518
1519 rsnd_dai_call(pointer, io, &pointer);
1520
1521 return pointer;
1522}
1523
1524
1525
1526
1527static int rsnd_kctrl_info(struct snd_kcontrol *kctrl,
1528 struct snd_ctl_elem_info *uinfo)
1529{
1530 struct rsnd_kctrl_cfg *cfg = snd_kcontrol_chip(kctrl);
1531
1532 if (cfg->texts) {
1533 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1534 uinfo->count = cfg->size;
1535 uinfo->value.enumerated.items = cfg->max;
1536 if (uinfo->value.enumerated.item >= cfg->max)
1537 uinfo->value.enumerated.item = cfg->max - 1;
1538 strscpy(uinfo->value.enumerated.name,
1539 cfg->texts[uinfo->value.enumerated.item],
1540 sizeof(uinfo->value.enumerated.name));
1541 } else {
1542 uinfo->count = cfg->size;
1543 uinfo->value.integer.min = 0;
1544 uinfo->value.integer.max = cfg->max;
1545 uinfo->type = (cfg->max == 1) ?
1546 SNDRV_CTL_ELEM_TYPE_BOOLEAN :
1547 SNDRV_CTL_ELEM_TYPE_INTEGER;
1548 }
1549
1550 return 0;
1551}
1552
1553static int rsnd_kctrl_get(struct snd_kcontrol *kctrl,
1554 struct snd_ctl_elem_value *uc)
1555{
1556 struct rsnd_kctrl_cfg *cfg = snd_kcontrol_chip(kctrl);
1557 int i;
1558
1559 for (i = 0; i < cfg->size; i++)
1560 if (cfg->texts)
1561 uc->value.enumerated.item[i] = cfg->val[i];
1562 else
1563 uc->value.integer.value[i] = cfg->val[i];
1564
1565 return 0;
1566}
1567
1568static int rsnd_kctrl_put(struct snd_kcontrol *kctrl,
1569 struct snd_ctl_elem_value *uc)
1570{
1571 struct rsnd_kctrl_cfg *cfg = snd_kcontrol_chip(kctrl);
1572 int i, change = 0;
1573
1574 if (!cfg->accept(cfg->io))
1575 return 0;
1576
1577 for (i = 0; i < cfg->size; i++) {
1578 if (cfg->texts) {
1579 change |= (uc->value.enumerated.item[i] != cfg->val[i]);
1580 cfg->val[i] = uc->value.enumerated.item[i];
1581 } else {
1582 change |= (uc->value.integer.value[i] != cfg->val[i]);
1583 cfg->val[i] = uc->value.integer.value[i];
1584 }
1585 }
1586
1587 if (change && cfg->update)
1588 cfg->update(cfg->io, cfg->mod);
1589
1590 return change;
1591}
1592
1593int rsnd_kctrl_accept_anytime(struct rsnd_dai_stream *io)
1594{
1595 return 1;
1596}
1597
1598int rsnd_kctrl_accept_runtime(struct rsnd_dai_stream *io)
1599{
1600 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
1601 struct rsnd_priv *priv = rsnd_io_to_priv(io);
1602 struct device *dev = rsnd_priv_to_dev(priv);
1603
1604 if (!runtime) {
1605 dev_warn(dev, "Can't update kctrl when idle\n");
1606 return 0;
1607 }
1608
1609 return 1;
1610}
1611
1612struct rsnd_kctrl_cfg *rsnd_kctrl_init_m(struct rsnd_kctrl_cfg_m *cfg)
1613{
1614 cfg->cfg.val = cfg->val;
1615
1616 return &cfg->cfg;
1617}
1618
1619struct rsnd_kctrl_cfg *rsnd_kctrl_init_s(struct rsnd_kctrl_cfg_s *cfg)
1620{
1621 cfg->cfg.val = &cfg->val;
1622
1623 return &cfg->cfg;
1624}
1625
1626const char * const volume_ramp_rate[] = {
1627 "128 dB/1 step",
1628 "64 dB/1 step",
1629 "32 dB/1 step",
1630 "16 dB/1 step",
1631 "8 dB/1 step",
1632 "4 dB/1 step",
1633 "2 dB/1 step",
1634 "1 dB/1 step",
1635 "0.5 dB/1 step",
1636 "0.25 dB/1 step",
1637 "0.125 dB/1 step",
1638 "0.125 dB/2 steps",
1639 "0.125 dB/4 steps",
1640 "0.125 dB/8 steps",
1641 "0.125 dB/16 steps",
1642 "0.125 dB/32 steps",
1643 "0.125 dB/64 steps",
1644 "0.125 dB/128 steps",
1645 "0.125 dB/256 steps",
1646 "0.125 dB/512 steps",
1647 "0.125 dB/1024 steps",
1648 "0.125 dB/2048 steps",
1649 "0.125 dB/4096 steps",
1650 "0.125 dB/8192 steps",
1651};
1652
1653int rsnd_kctrl_new(struct rsnd_mod *mod,
1654 struct rsnd_dai_stream *io,
1655 struct snd_soc_pcm_runtime *rtd,
1656 const unsigned char *name,
1657 int (*accept)(struct rsnd_dai_stream *io),
1658 void (*update)(struct rsnd_dai_stream *io,
1659 struct rsnd_mod *mod),
1660 struct rsnd_kctrl_cfg *cfg,
1661 const char * const *texts,
1662 int size,
1663 u32 max)
1664{
1665 struct snd_card *card = rtd->card->snd_card;
1666 struct snd_kcontrol *kctrl;
1667 struct snd_kcontrol_new knew = {
1668 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1669 .name = name,
1670 .info = rsnd_kctrl_info,
1671 .index = rtd->num,
1672 .get = rsnd_kctrl_get,
1673 .put = rsnd_kctrl_put,
1674 };
1675 int ret;
1676
1677
1678
1679
1680
1681
1682 list_for_each_entry(kctrl, &card->controls, list) {
1683 struct rsnd_kctrl_cfg *c = kctrl->private_data;
1684
1685 if (c == cfg)
1686 return 0;
1687 }
1688
1689 if (size > RSND_MAX_CHANNELS)
1690 return -EINVAL;
1691
1692 kctrl = snd_ctl_new1(&knew, cfg);
1693 if (!kctrl)
1694 return -ENOMEM;
1695
1696 ret = snd_ctl_add(card, kctrl);
1697 if (ret < 0)
1698 return ret;
1699
1700 cfg->texts = texts;
1701 cfg->max = max;
1702 cfg->size = size;
1703 cfg->accept = accept;
1704 cfg->update = update;
1705 cfg->card = card;
1706 cfg->kctrl = kctrl;
1707 cfg->io = io;
1708 cfg->mod = mod;
1709
1710 return 0;
1711}
1712
1713
1714
1715
1716static const struct snd_soc_component_driver rsnd_soc_component = {
1717 .name = "rsnd",
1718 .hw_params = rsnd_hw_params,
1719 .hw_free = rsnd_hw_free,
1720 .pointer = rsnd_pointer,
1721};
1722
1723static int rsnd_rdai_continuance_probe(struct rsnd_priv *priv,
1724 struct rsnd_dai_stream *io)
1725{
1726 int ret;
1727
1728 ret = rsnd_dai_call(probe, io, priv);
1729 if (ret == -EAGAIN) {
1730 struct rsnd_mod *ssi_mod = rsnd_io_to_mod_ssi(io);
1731 struct rsnd_mod *mod;
1732 int i;
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745 rsnd_dai_call(remove, io, priv);
1746
1747
1748
1749
1750
1751 for_each_rsnd_mod(i, mod, io)
1752 rsnd_dai_disconnect(mod, io, i);
1753 rsnd_dai_connect(ssi_mod, io, RSND_MOD_SSI);
1754
1755
1756
1757
1758 rsnd_dai_call(fallback, io, priv);
1759
1760
1761
1762
1763
1764 ret = rsnd_dai_call(probe, io, priv);
1765 }
1766
1767 return ret;
1768}
1769
1770
1771
1772
1773static int rsnd_probe(struct platform_device *pdev)
1774{
1775 struct rsnd_priv *priv;
1776 struct device *dev = &pdev->dev;
1777 struct rsnd_dai *rdai;
1778 int (*probe_func[])(struct rsnd_priv *priv) = {
1779 rsnd_gen_probe,
1780 rsnd_dma_probe,
1781 rsnd_ssi_probe,
1782 rsnd_ssiu_probe,
1783 rsnd_src_probe,
1784 rsnd_ctu_probe,
1785 rsnd_mix_probe,
1786 rsnd_dvc_probe,
1787 rsnd_cmd_probe,
1788 rsnd_adg_probe,
1789 rsnd_dai_probe,
1790 };
1791 int ret, i;
1792
1793
1794
1795
1796 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
1797 if (!priv)
1798 return -ENODEV;
1799
1800 priv->pdev = pdev;
1801 priv->flags = (unsigned long)of_device_get_match_data(dev);
1802 spin_lock_init(&priv->lock);
1803
1804
1805
1806
1807 for (i = 0; i < ARRAY_SIZE(probe_func); i++) {
1808 ret = probe_func[i](priv);
1809 if (ret)
1810 return ret;
1811 }
1812
1813 for_each_rsnd_dai(rdai, priv, i) {
1814 ret = rsnd_rdai_continuance_probe(priv, &rdai->playback);
1815 if (ret)
1816 goto exit_snd_probe;
1817
1818 ret = rsnd_rdai_continuance_probe(priv, &rdai->capture);
1819 if (ret)
1820 goto exit_snd_probe;
1821 }
1822
1823 dev_set_drvdata(dev, priv);
1824
1825
1826
1827
1828 ret = devm_snd_soc_register_component(dev, &rsnd_soc_component,
1829 priv->daidrv, rsnd_rdai_nr(priv));
1830 if (ret < 0) {
1831 dev_err(dev, "cannot snd dai register\n");
1832 goto exit_snd_probe;
1833 }
1834
1835 pm_runtime_enable(dev);
1836
1837 dev_info(dev, "probed\n");
1838 return ret;
1839
1840exit_snd_probe:
1841 for_each_rsnd_dai(rdai, priv, i) {
1842 rsnd_dai_call(remove, &rdai->playback, priv);
1843 rsnd_dai_call(remove, &rdai->capture, priv);
1844 }
1845
1846
1847
1848
1849
1850
1851
1852 rsnd_adg_remove(priv);
1853
1854 return ret;
1855}
1856
1857static int rsnd_remove(struct platform_device *pdev)
1858{
1859 struct rsnd_priv *priv = dev_get_drvdata(&pdev->dev);
1860 struct rsnd_dai *rdai;
1861 void (*remove_func[])(struct rsnd_priv *priv) = {
1862 rsnd_ssi_remove,
1863 rsnd_ssiu_remove,
1864 rsnd_src_remove,
1865 rsnd_ctu_remove,
1866 rsnd_mix_remove,
1867 rsnd_dvc_remove,
1868 rsnd_cmd_remove,
1869 rsnd_adg_remove,
1870 };
1871 int ret = 0, i;
1872
1873 pm_runtime_disable(&pdev->dev);
1874
1875 for_each_rsnd_dai(rdai, priv, i) {
1876 ret |= rsnd_dai_call(remove, &rdai->playback, priv);
1877 ret |= rsnd_dai_call(remove, &rdai->capture, priv);
1878 }
1879
1880 for (i = 0; i < ARRAY_SIZE(remove_func); i++)
1881 remove_func[i](priv);
1882
1883 return ret;
1884}
1885
1886static int __maybe_unused rsnd_suspend(struct device *dev)
1887{
1888 struct rsnd_priv *priv = dev_get_drvdata(dev);
1889
1890 rsnd_adg_clk_disable(priv);
1891
1892 return 0;
1893}
1894
1895static int __maybe_unused rsnd_resume(struct device *dev)
1896{
1897 struct rsnd_priv *priv = dev_get_drvdata(dev);
1898
1899 rsnd_adg_clk_enable(priv);
1900
1901 return 0;
1902}
1903
1904static const struct dev_pm_ops rsnd_pm_ops = {
1905 SET_SYSTEM_SLEEP_PM_OPS(rsnd_suspend, rsnd_resume)
1906};
1907
1908static struct platform_driver rsnd_driver = {
1909 .driver = {
1910 .name = "rcar_sound",
1911 .pm = &rsnd_pm_ops,
1912 .of_match_table = rsnd_of_match,
1913 },
1914 .probe = rsnd_probe,
1915 .remove = rsnd_remove,
1916};
1917module_platform_driver(rsnd_driver);
1918
1919MODULE_LICENSE("GPL v2");
1920MODULE_DESCRIPTION("Renesas R-Car audio driver");
1921MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
1922MODULE_ALIAS("platform:rcar-pcm-audio");
1923
