ASoC: AMD: Change codec to channel link as per hardware redesign
[muen/linux.git] / sound / soc / sh / rcar / core.c
1 // SPDX-License-Identifier: GPL-2.0
2 //
3 // Renesas R-Car SRU/SCU/SSIU/SSI support
4 //
5 // Copyright (C) 2013 Renesas Solutions Corp.
6 // Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
7 //
8 // Based on fsi.c
9 // Kuninori Morimoto <morimoto.kuninori@renesas.com>
10
11 /*
12  * Renesas R-Car sound device structure
13  *
14  * Gen1
15  *
16  * SRU          : Sound Routing Unit
17  *  - SRC       : Sampling Rate Converter
18  *  - CMD
19  *    - CTU     : Channel Count Conversion Unit
20  *    - MIX     : Mixer
21  *    - DVC     : Digital Volume and Mute Function
22  *  - SSI       : Serial Sound Interface
23  *
24  * Gen2
25  *
26  * SCU          : Sampling Rate Converter Unit
27  *  - SRC       : Sampling Rate Converter
28  *  - CMD
29  *   - CTU      : Channel Count Conversion Unit
30  *   - MIX      : Mixer
31  *   - DVC      : Digital Volume and Mute Function
32  * SSIU         : Serial Sound Interface Unit
33  *  - SSI       : Serial Sound Interface
34  */
35
36 /*
37  *      driver data Image
38  *
39  * rsnd_priv
40  *   |
41  *   | ** this depends on Gen1/Gen2
42  *   |
43  *   +- gen
44  *   |
45  *   | ** these depend on data path
46  *   | ** gen and platform data control it
47  *   |
48  *   +- rdai[0]
49  *   |   |               sru     ssiu      ssi
50  *   |   +- playback -> [mod] -> [mod] -> [mod] -> ...
51  *   |   |
52  *   |   |               sru     ssiu      ssi
53  *   |   +- capture  -> [mod] -> [mod] -> [mod] -> ...
54  *   |
55  *   +- rdai[1]
56  *   |   |               sru     ssiu      ssi
57  *   |   +- playback -> [mod] -> [mod] -> [mod] -> ...
58  *   |   |
59  *   |   |               sru     ssiu      ssi
60  *   |   +- capture  -> [mod] -> [mod] -> [mod] -> ...
61  *   ...
62  *   |
63  *   | ** these control ssi
64  *   |
65  *   +- ssi
66  *   |  |
67  *   |  +- ssi[0]
68  *   |  +- ssi[1]
69  *   |  +- ssi[2]
70  *   |  ...
71  *   |
72  *   | ** these control src
73  *   |
74  *   +- src
75  *      |
76  *      +- src[0]
77  *      +- src[1]
78  *      +- src[2]
79  *      ...
80  *
81  *
82  * for_each_rsnd_dai(xx, priv, xx)
83  *  rdai[0] => rdai[1] => rdai[2] => ...
84  *
85  * for_each_rsnd_mod(xx, rdai, xx)
86  *  [mod] => [mod] => [mod] => ...
87  *
88  * rsnd_dai_call(xxx, fn )
89  *  [mod]->fn() -> [mod]->fn() -> [mod]->fn()...
90  *
91  */
92
93 /*
94  * you can enable below define if you don't need
95  * DAI status debug message when debugging
96  * see rsnd_dbg_dai_call()
97  *
98  * #define RSND_DEBUG_NO_DAI_CALL 1
99  */
100
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_S24_LE | SNDRV_PCM_FMTBIT_S16_LE)
106
107 static const struct of_device_id rsnd_of_match[] = {
108         { .compatible = "renesas,rcar_sound-gen1", .data = (void *)RSND_GEN1 },
109         { .compatible = "renesas,rcar_sound-gen2", .data = (void *)RSND_GEN2 },
110         { .compatible = "renesas,rcar_sound-gen3", .data = (void *)RSND_GEN3 },
111         {},
112 };
113 MODULE_DEVICE_TABLE(of, rsnd_of_match);
114
115 /*
116  *      rsnd_mod functions
117  */
118 void rsnd_mod_make_sure(struct rsnd_mod *mod, enum rsnd_mod_type type)
119 {
120         if (mod->type != type) {
121                 struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
122                 struct device *dev = rsnd_priv_to_dev(priv);
123
124                 dev_warn(dev, "%s[%d] is not your expected module\n",
125                          rsnd_mod_name(mod), rsnd_mod_id(mod));
126         }
127 }
128
129 struct dma_chan *rsnd_mod_dma_req(struct rsnd_dai_stream *io,
130                                   struct rsnd_mod *mod)
131 {
132         if (!mod || !mod->ops || !mod->ops->dma_req)
133                 return NULL;
134
135         return mod->ops->dma_req(io, mod);
136 }
137
138 u32 *rsnd_mod_get_status(struct rsnd_dai_stream *io,
139                          struct rsnd_mod *mod,
140                          enum rsnd_mod_type type)
141 {
142         return &mod->status;
143 }
144
145 int rsnd_mod_init(struct rsnd_priv *priv,
146                   struct rsnd_mod *mod,
147                   struct rsnd_mod_ops *ops,
148                   struct clk *clk,
149                   u32* (*get_status)(struct rsnd_dai_stream *io,
150                                      struct rsnd_mod *mod,
151                                      enum rsnd_mod_type type),
152                   enum rsnd_mod_type type,
153                   int id)
154 {
155         int ret = clk_prepare(clk);
156
157         if (ret)
158                 return ret;
159
160         mod->id         = id;
161         mod->ops        = ops;
162         mod->type       = type;
163         mod->clk        = clk;
164         mod->priv       = priv;
165         mod->get_status = get_status;
166
167         return ret;
168 }
169
170 void rsnd_mod_quit(struct rsnd_mod *mod)
171 {
172         clk_unprepare(mod->clk);
173         mod->clk = NULL;
174 }
175
176 void rsnd_mod_interrupt(struct rsnd_mod *mod,
177                         void (*callback)(struct rsnd_mod *mod,
178                                          struct rsnd_dai_stream *io))
179 {
180         struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
181         struct rsnd_dai_stream *io;
182         struct rsnd_dai *rdai;
183         int i;
184
185         for_each_rsnd_dai(rdai, priv, i) {
186                 io = &rdai->playback;
187                 if (mod == io->mod[mod->type])
188                         callback(mod, io);
189
190                 io = &rdai->capture;
191                 if (mod == io->mod[mod->type])
192                         callback(mod, io);
193         }
194 }
195
196 int rsnd_io_is_working(struct rsnd_dai_stream *io)
197 {
198         /* see rsnd_dai_stream_init/quit() */
199         if (io->substream)
200                 return snd_pcm_running(io->substream);
201
202         return 0;
203 }
204
205 int rsnd_runtime_channel_original_with_params(struct rsnd_dai_stream *io,
206                                               struct snd_pcm_hw_params *params)
207 {
208         struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
209
210         /*
211          * params will be added when refine
212          * see
213          *      __rsnd_soc_hw_rule_rate()
214          *      __rsnd_soc_hw_rule_channels()
215          */
216         if (params)
217                 return params_channels(params);
218         else
219                 return runtime->channels;
220 }
221
222 int rsnd_runtime_channel_after_ctu_with_params(struct rsnd_dai_stream *io,
223                                                struct snd_pcm_hw_params *params)
224 {
225         int chan = rsnd_runtime_channel_original_with_params(io, params);
226         struct rsnd_mod *ctu_mod = rsnd_io_to_mod_ctu(io);
227
228         if (ctu_mod) {
229                 u32 converted_chan = rsnd_ctu_converted_channel(ctu_mod);
230
231                 if (converted_chan)
232                         return converted_chan;
233         }
234
235         return chan;
236 }
237
238 int rsnd_runtime_channel_for_ssi_with_params(struct rsnd_dai_stream *io,
239                                              struct snd_pcm_hw_params *params)
240 {
241         struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
242         int chan = rsnd_io_is_play(io) ?
243                 rsnd_runtime_channel_after_ctu_with_params(io, params) :
244                 rsnd_runtime_channel_original_with_params(io, params);
245
246         /* Use Multi SSI */
247         if (rsnd_runtime_is_ssi_multi(io))
248                 chan /= rsnd_rdai_ssi_lane_get(rdai);
249
250         /* TDM Extend Mode needs 8ch */
251         if (chan == 6)
252                 chan = 8;
253
254         return chan;
255 }
256
257 int rsnd_runtime_is_ssi_multi(struct rsnd_dai_stream *io)
258 {
259         struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
260         int lane = rsnd_rdai_ssi_lane_get(rdai);
261         int chan = rsnd_io_is_play(io) ?
262                 rsnd_runtime_channel_after_ctu(io) :
263                 rsnd_runtime_channel_original(io);
264
265         return (chan > 2) && (lane > 1);
266 }
267
268 int rsnd_runtime_is_ssi_tdm(struct rsnd_dai_stream *io)
269 {
270         return rsnd_runtime_channel_for_ssi(io) >= 6;
271 }
272
273 /*
274  *      ADINR function
275  */
276 u32 rsnd_get_adinr_bit(struct rsnd_mod *mod, struct rsnd_dai_stream *io)
277 {
278         struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
279         struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
280         struct device *dev = rsnd_priv_to_dev(priv);
281
282         switch (snd_pcm_format_width(runtime->format)) {
283         case 16:
284                 return 8 << 16;
285         case 24:
286                 return 0 << 16;
287         }
288
289         dev_warn(dev, "not supported sample bits\n");
290
291         return 0;
292 }
293
294 /*
295  *      DALIGN function
296  */
297 u32 rsnd_get_dalign(struct rsnd_mod *mod, struct rsnd_dai_stream *io)
298 {
299         struct rsnd_mod *ssiu = rsnd_io_to_mod_ssiu(io);
300         struct rsnd_mod *target;
301         struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
302
303         /*
304          * *Hardware* L/R and *Software* L/R are inverted for 16bit data.
305          *          31..16 15...0
306          *      HW: [L ch] [R ch]
307          *      SW: [R ch] [L ch]
308          * We need to care about inversion timing to control
309          * Playback/Capture correctly.
310          * The point is [DVC] needs *Hardware* L/R, [MEM] needs *Software* L/R
311          *
312          * sL/R : software L/R
313          * hL/R : hardware L/R
314          * (*)  : conversion timing
315          *
316          * Playback
317          *           sL/R (*) hL/R     hL/R     hL/R      hL/R     hL/R
318          *      [MEM] -> [SRC] -> [DVC] -> [CMD] -> [SSIU] -> [SSI] -> codec
319          *
320          * Capture
321          *           hL/R     hL/R      hL/R     hL/R     hL/R (*) sL/R
322          *      codec -> [SSI] -> [SSIU] -> [SRC] -> [DVC] -> [CMD] -> [MEM]
323          */
324         if (rsnd_io_is_play(io)) {
325                 struct rsnd_mod *src = rsnd_io_to_mod_src(io);
326
327                 target = src ? src : ssiu;
328         } else {
329                 struct rsnd_mod *cmd = rsnd_io_to_mod_cmd(io);
330
331                 target = cmd ? cmd : ssiu;
332         }
333
334         /* Non target mod or 24bit data needs normal DALIGN */
335         if ((snd_pcm_format_width(runtime->format) != 16) ||
336             (mod != target))
337                 return 0x76543210;
338         /* Target mod needs inverted DALIGN when 16bit */
339         else
340                 return 0x67452301;
341 }
342
343 u32 rsnd_get_busif_shift(struct rsnd_dai_stream *io, struct rsnd_mod *mod)
344 {
345         enum rsnd_mod_type playback_mods[] = {
346                 RSND_MOD_SRC,
347                 RSND_MOD_CMD,
348                 RSND_MOD_SSIU,
349         };
350         enum rsnd_mod_type capture_mods[] = {
351                 RSND_MOD_CMD,
352                 RSND_MOD_SRC,
353                 RSND_MOD_SSIU,
354         };
355         struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
356         struct rsnd_mod *tmod = NULL;
357         enum rsnd_mod_type *mods =
358                 rsnd_io_is_play(io) ?
359                 playback_mods : capture_mods;
360         int i;
361
362         /*
363          * This is needed for 24bit data
364          * We need to shift 8bit
365          *
366          * Linux 24bit data is located as 0x00******
367          * HW    24bit data is located as 0x******00
368          *
369          */
370         if (snd_pcm_format_width(runtime->format) == 16)
371                 return 0;
372
373         for (i = 0; i < ARRAY_SIZE(playback_mods); i++) {
374                 tmod = rsnd_io_to_mod(io, mods[i]);
375                 if (tmod)
376                         break;
377         }
378
379         if (tmod != mod)
380                 return 0;
381
382         if (rsnd_io_is_play(io))
383                 return  (0 << 20) | /* shift to Left */
384                         (8 << 16);  /* 8bit */
385         else
386                 return  (1 << 20) | /* shift to Right */
387                         (8 << 16);  /* 8bit */
388 }
389
390 /*
391  *      rsnd_dai functions
392  */
393 struct rsnd_mod *rsnd_mod_next(int *iterator,
394                                struct rsnd_dai_stream *io,
395                                enum rsnd_mod_type *array,
396                                int array_size)
397 {
398         struct rsnd_mod *mod;
399         enum rsnd_mod_type type;
400         int max = array ? array_size : RSND_MOD_MAX;
401
402         for (; *iterator < max; (*iterator)++) {
403                 type = (array) ? array[*iterator] : *iterator;
404                 mod = rsnd_io_to_mod(io, type);
405                 if (mod)
406                         return mod;
407         }
408
409         return NULL;
410 }
411
412 static enum rsnd_mod_type rsnd_mod_sequence[][RSND_MOD_MAX] = {
413         {
414                 /* CAPTURE */
415                 RSND_MOD_AUDMAPP,
416                 RSND_MOD_AUDMA,
417                 RSND_MOD_DVC,
418                 RSND_MOD_MIX,
419                 RSND_MOD_CTU,
420                 RSND_MOD_CMD,
421                 RSND_MOD_SRC,
422                 RSND_MOD_SSIU,
423                 RSND_MOD_SSIM3,
424                 RSND_MOD_SSIM2,
425                 RSND_MOD_SSIM1,
426                 RSND_MOD_SSIP,
427                 RSND_MOD_SSI,
428         }, {
429                 /* PLAYBACK */
430                 RSND_MOD_AUDMAPP,
431                 RSND_MOD_AUDMA,
432                 RSND_MOD_SSIM3,
433                 RSND_MOD_SSIM2,
434                 RSND_MOD_SSIM1,
435                 RSND_MOD_SSIP,
436                 RSND_MOD_SSI,
437                 RSND_MOD_SSIU,
438                 RSND_MOD_DVC,
439                 RSND_MOD_MIX,
440                 RSND_MOD_CTU,
441                 RSND_MOD_CMD,
442                 RSND_MOD_SRC,
443         },
444 };
445
446 static int rsnd_status_update(u32 *status,
447                               int shift, int add, int timing)
448 {
449         u32 mask        = 0xF << shift;
450         u8 val          = (*status >> shift) & 0xF;
451         u8 next_val     = (val + add) & 0xF;
452         int func_call   = (val == timing);
453
454         if (next_val == 0xF) /* underflow case */
455                 func_call = 0;
456         else
457                 *status = (*status & ~mask) + (next_val << shift);
458
459         return func_call;
460 }
461
462 #define rsnd_dai_call(fn, io, param...)                                 \
463 ({                                                                      \
464         struct device *dev = rsnd_priv_to_dev(rsnd_io_to_priv(io));     \
465         struct rsnd_mod *mod;                                           \
466         int is_play = rsnd_io_is_play(io);                              \
467         int ret = 0, i;                                                 \
468         enum rsnd_mod_type *types = rsnd_mod_sequence[is_play];         \
469         for_each_rsnd_mod_arrays(i, mod, io, types, RSND_MOD_MAX) {     \
470                 int tmp = 0;                                            \
471                 u32 *status = mod->get_status(io, mod, types[i]);       \
472                 int func_call = rsnd_status_update(status,              \
473                                                 __rsnd_mod_shift_##fn,  \
474                                                 __rsnd_mod_add_##fn,    \
475                                                 __rsnd_mod_call_##fn);  \
476                 rsnd_dbg_dai_call(dev, "%s[%d]\t0x%08x %s\n",           \
477                         rsnd_mod_name(mod), rsnd_mod_id(mod), *status,  \
478                         (func_call && (mod)->ops->fn) ? #fn : "");      \
479                 if (func_call && (mod)->ops->fn)                        \
480                         tmp = (mod)->ops->fn(mod, io, param);           \
481                 if (tmp)                                                \
482                         dev_err(dev, "%s[%d] : %s error %d\n",          \
483                                 rsnd_mod_name(mod), rsnd_mod_id(mod),   \
484                                                      #fn, tmp);         \
485                 ret |= tmp;                                             \
486         }                                                               \
487         ret;                                                            \
488 })
489
490 int rsnd_dai_connect(struct rsnd_mod *mod,
491                      struct rsnd_dai_stream *io,
492                      enum rsnd_mod_type type)
493 {
494         struct rsnd_priv *priv;
495         struct device *dev;
496
497         if (!mod)
498                 return -EIO;
499
500         if (io->mod[type] == mod)
501                 return 0;
502
503         if (io->mod[type])
504                 return -EINVAL;
505
506         priv = rsnd_mod_to_priv(mod);
507         dev = rsnd_priv_to_dev(priv);
508
509         io->mod[type] = mod;
510
511         dev_dbg(dev, "%s[%d] is connected to io (%s)\n",
512                 rsnd_mod_name(mod), rsnd_mod_id(mod),
513                 rsnd_io_is_play(io) ? "Playback" : "Capture");
514
515         return 0;
516 }
517
518 static void rsnd_dai_disconnect(struct rsnd_mod *mod,
519                                 struct rsnd_dai_stream *io,
520                                 enum rsnd_mod_type type)
521 {
522         io->mod[type] = NULL;
523 }
524
525 int rsnd_rdai_channels_ctrl(struct rsnd_dai *rdai,
526                             int max_channels)
527 {
528         if (max_channels > 0)
529                 rdai->max_channels = max_channels;
530
531         return rdai->max_channels;
532 }
533
534 int rsnd_rdai_ssi_lane_ctrl(struct rsnd_dai *rdai,
535                             int ssi_lane)
536 {
537         if (ssi_lane > 0)
538                 rdai->ssi_lane = ssi_lane;
539
540         return rdai->ssi_lane;
541 }
542
543 struct rsnd_dai *rsnd_rdai_get(struct rsnd_priv *priv, int id)
544 {
545         if ((id < 0) || (id >= rsnd_rdai_nr(priv)))
546                 return NULL;
547
548         return priv->rdai + id;
549 }
550
551 static struct snd_soc_dai_driver
552 *rsnd_daidrv_get(struct rsnd_priv *priv, int id)
553 {
554         if ((id < 0) || (id >= rsnd_rdai_nr(priv)))
555                 return NULL;
556
557         return priv->daidrv + id;
558 }
559
560 #define rsnd_dai_to_priv(dai) snd_soc_dai_get_drvdata(dai)
561 static struct rsnd_dai *rsnd_dai_to_rdai(struct snd_soc_dai *dai)
562 {
563         struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
564
565         return rsnd_rdai_get(priv, dai->id);
566 }
567
568 /*
569  *      rsnd_soc_dai functions
570  */
571 void rsnd_dai_period_elapsed(struct rsnd_dai_stream *io)
572 {
573         struct snd_pcm_substream *substream = io->substream;
574
575         /*
576          * this function should be called...
577          *
578          * - if rsnd_dai_pointer_update() returns true
579          * - without spin lock
580          */
581
582         snd_pcm_period_elapsed(substream);
583 }
584
585 static void rsnd_dai_stream_init(struct rsnd_dai_stream *io,
586                                 struct snd_pcm_substream *substream)
587 {
588         io->substream           = substream;
589 }
590
591 static void rsnd_dai_stream_quit(struct rsnd_dai_stream *io)
592 {
593         io->substream           = NULL;
594 }
595
596 static
597 struct snd_soc_dai *rsnd_substream_to_dai(struct snd_pcm_substream *substream)
598 {
599         struct snd_soc_pcm_runtime *rtd = substream->private_data;
600
601         return  rtd->cpu_dai;
602 }
603
604 static
605 struct rsnd_dai_stream *rsnd_rdai_to_io(struct rsnd_dai *rdai,
606                                         struct snd_pcm_substream *substream)
607 {
608         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
609                 return &rdai->playback;
610         else
611                 return &rdai->capture;
612 }
613
614 static int rsnd_soc_dai_trigger(struct snd_pcm_substream *substream, int cmd,
615                             struct snd_soc_dai *dai)
616 {
617         struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
618         struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
619         struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
620         int ret;
621         unsigned long flags;
622
623         spin_lock_irqsave(&priv->lock, flags);
624
625         switch (cmd) {
626         case SNDRV_PCM_TRIGGER_START:
627         case SNDRV_PCM_TRIGGER_RESUME:
628                 ret = rsnd_dai_call(init, io, priv);
629                 if (ret < 0)
630                         goto dai_trigger_end;
631
632                 ret = rsnd_dai_call(start, io, priv);
633                 if (ret < 0)
634                         goto dai_trigger_end;
635
636                 ret = rsnd_dai_call(irq, io, priv, 1);
637                 if (ret < 0)
638                         goto dai_trigger_end;
639
640                 break;
641         case SNDRV_PCM_TRIGGER_STOP:
642         case SNDRV_PCM_TRIGGER_SUSPEND:
643                 ret = rsnd_dai_call(irq, io, priv, 0);
644
645                 ret |= rsnd_dai_call(stop, io, priv);
646
647                 ret |= rsnd_dai_call(quit, io, priv);
648
649                 break;
650         default:
651                 ret = -EINVAL;
652         }
653
654 dai_trigger_end:
655         spin_unlock_irqrestore(&priv->lock, flags);
656
657         return ret;
658 }
659
660 static int rsnd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
661 {
662         struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
663
664         /* set master/slave audio interface */
665         switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
666         case SND_SOC_DAIFMT_CBM_CFM:
667                 rdai->clk_master = 0;
668                 break;
669         case SND_SOC_DAIFMT_CBS_CFS:
670                 rdai->clk_master = 1; /* codec is slave, cpu is master */
671                 break;
672         default:
673                 return -EINVAL;
674         }
675
676         /* set format */
677         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
678         case SND_SOC_DAIFMT_I2S:
679                 rdai->sys_delay = 0;
680                 rdai->data_alignment = 0;
681                 rdai->frm_clk_inv = 0;
682                 break;
683         case SND_SOC_DAIFMT_LEFT_J:
684                 rdai->sys_delay = 1;
685                 rdai->data_alignment = 0;
686                 rdai->frm_clk_inv = 1;
687                 break;
688         case SND_SOC_DAIFMT_RIGHT_J:
689                 rdai->sys_delay = 1;
690                 rdai->data_alignment = 1;
691                 rdai->frm_clk_inv = 1;
692                 break;
693         }
694
695         /* set clock inversion */
696         switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
697         case SND_SOC_DAIFMT_NB_IF:
698                 rdai->frm_clk_inv = !rdai->frm_clk_inv;
699                 break;
700         case SND_SOC_DAIFMT_IB_NF:
701                 rdai->bit_clk_inv = !rdai->bit_clk_inv;
702                 break;
703         case SND_SOC_DAIFMT_IB_IF:
704                 rdai->bit_clk_inv = !rdai->bit_clk_inv;
705                 rdai->frm_clk_inv = !rdai->frm_clk_inv;
706                 break;
707         case SND_SOC_DAIFMT_NB_NF:
708         default:
709                 break;
710         }
711
712         return 0;
713 }
714
715 static int rsnd_soc_set_dai_tdm_slot(struct snd_soc_dai *dai,
716                                      u32 tx_mask, u32 rx_mask,
717                                      int slots, int slot_width)
718 {
719         struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
720         struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
721         struct device *dev = rsnd_priv_to_dev(priv);
722
723         switch (slots) {
724         case 2:
725         case 6:
726         case 8:
727                 /* TDM Extend Mode */
728                 rsnd_rdai_channels_set(rdai, slots);
729                 rsnd_rdai_ssi_lane_set(rdai, 1);
730                 break;
731         default:
732                 dev_err(dev, "unsupported TDM slots (%d)\n", slots);
733                 return -EINVAL;
734         }
735
736         return 0;
737 }
738
739 static unsigned int rsnd_soc_hw_channels_list[] = {
740         2, 6, 8,
741 };
742
743 static unsigned int rsnd_soc_hw_rate_list[] = {
744           8000,
745          11025,
746          16000,
747          22050,
748          32000,
749          44100,
750          48000,
751          64000,
752          88200,
753          96000,
754         176400,
755         192000,
756 };
757
758 static int rsnd_soc_hw_rule(struct rsnd_priv *priv,
759                             unsigned int *list, int list_num,
760                             struct snd_interval *baseline, struct snd_interval *iv)
761 {
762         struct snd_interval p;
763         unsigned int rate;
764         int i;
765
766         snd_interval_any(&p);
767         p.min = UINT_MAX;
768         p.max = 0;
769
770         for (i = 0; i < list_num; i++) {
771
772                 if (!snd_interval_test(iv, list[i]))
773                         continue;
774
775                 rate = rsnd_ssi_clk_query(priv,
776                                           baseline->min, list[i], NULL);
777                 if (rate > 0) {
778                         p.min = min(p.min, list[i]);
779                         p.max = max(p.max, list[i]);
780                 }
781
782                 rate = rsnd_ssi_clk_query(priv,
783                                           baseline->max, list[i], NULL);
784                 if (rate > 0) {
785                         p.min = min(p.min, list[i]);
786                         p.max = max(p.max, list[i]);
787                 }
788         }
789
790         return snd_interval_refine(iv, &p);
791 }
792
793 static int __rsnd_soc_hw_rule_rate(struct snd_pcm_hw_params *params,
794                                    struct snd_pcm_hw_rule *rule,
795                                    int is_play)
796 {
797         struct snd_interval *ic_ = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
798         struct snd_interval *ir = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
799         struct snd_interval ic;
800         struct snd_soc_dai *dai = rule->private;
801         struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
802         struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai);
803         struct rsnd_dai_stream *io = is_play ? &rdai->playback : &rdai->capture;
804
805         /*
806          * possible sampling rate limitation is same as
807          * 2ch if it supports multi ssi
808          * and same as 8ch if TDM 6ch (see rsnd_ssi_config_init())
809          */
810         ic = *ic_;
811         ic.min =
812         ic.max = rsnd_runtime_channel_for_ssi_with_params(io, params);
813
814         return rsnd_soc_hw_rule(priv, rsnd_soc_hw_rate_list,
815                                 ARRAY_SIZE(rsnd_soc_hw_rate_list),
816                                 &ic, ir);
817 }
818
819 static int rsnd_soc_hw_rule_rate_playback(struct snd_pcm_hw_params *params,
820                                  struct snd_pcm_hw_rule *rule)
821 {
822         return __rsnd_soc_hw_rule_rate(params, rule, 1);
823 }
824
825 static int rsnd_soc_hw_rule_rate_capture(struct snd_pcm_hw_params *params,
826                                           struct snd_pcm_hw_rule *rule)
827 {
828         return __rsnd_soc_hw_rule_rate(params, rule, 0);
829 }
830
831 static int __rsnd_soc_hw_rule_channels(struct snd_pcm_hw_params *params,
832                                        struct snd_pcm_hw_rule *rule,
833                                        int is_play)
834 {
835         struct snd_interval *ic_ = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
836         struct snd_interval *ir = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
837         struct snd_interval ic;
838         struct snd_soc_dai *dai = rule->private;
839         struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
840         struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai);
841         struct rsnd_dai_stream *io = is_play ? &rdai->playback : &rdai->capture;
842
843         /*
844          * possible sampling rate limitation is same as
845          * 2ch if it supports multi ssi
846          * and same as 8ch if TDM 6ch (see rsnd_ssi_config_init())
847          */
848         ic = *ic_;
849         ic.min =
850         ic.max = rsnd_runtime_channel_for_ssi_with_params(io, params);
851
852         return rsnd_soc_hw_rule(priv, rsnd_soc_hw_channels_list,
853                                 ARRAY_SIZE(rsnd_soc_hw_channels_list),
854                                 ir, &ic);
855 }
856
857 static int rsnd_soc_hw_rule_channels_playback(struct snd_pcm_hw_params *params,
858                                               struct snd_pcm_hw_rule *rule)
859 {
860         return __rsnd_soc_hw_rule_channels(params, rule, 1);
861 }
862
863 static int rsnd_soc_hw_rule_channels_capture(struct snd_pcm_hw_params *params,
864                                              struct snd_pcm_hw_rule *rule)
865 {
866         return __rsnd_soc_hw_rule_channels(params, rule, 0);
867 }
868
869 static const struct snd_pcm_hardware rsnd_pcm_hardware = {
870         .info =         SNDRV_PCM_INFO_INTERLEAVED      |
871                         SNDRV_PCM_INFO_MMAP             |
872                         SNDRV_PCM_INFO_MMAP_VALID,
873         .buffer_bytes_max       = 64 * 1024,
874         .period_bytes_min       = 32,
875         .period_bytes_max       = 8192,
876         .periods_min            = 1,
877         .periods_max            = 32,
878         .fifo_size              = 256,
879 };
880
881 static int rsnd_soc_dai_startup(struct snd_pcm_substream *substream,
882                                 struct snd_soc_dai *dai)
883 {
884         struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
885         struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai);
886         struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
887         struct snd_pcm_hw_constraint_list *constraint = &rdai->constraint;
888         struct snd_pcm_runtime *runtime = substream->runtime;
889         unsigned int max_channels = rsnd_rdai_channels_get(rdai);
890         int ret;
891         int i;
892
893         rsnd_dai_stream_init(io, substream);
894
895         /*
896          * Channel Limitation
897          * It depends on Platform design
898          */
899         constraint->list        = rsnd_soc_hw_channels_list;
900         constraint->count       = 0;
901         constraint->mask        = 0;
902
903         for (i = 0; i < ARRAY_SIZE(rsnd_soc_hw_channels_list); i++) {
904                 if (rsnd_soc_hw_channels_list[i] > max_channels)
905                         break;
906                 constraint->count = i + 1;
907         }
908
909         snd_soc_set_runtime_hwparams(substream, &rsnd_pcm_hardware);
910
911         snd_pcm_hw_constraint_list(runtime, 0,
912                                    SNDRV_PCM_HW_PARAM_CHANNELS, constraint);
913
914         snd_pcm_hw_constraint_integer(runtime,
915                                       SNDRV_PCM_HW_PARAM_PERIODS);
916
917         /*
918          * Sampling Rate / Channel Limitation
919          * It depends on Clock Master Mode
920          */
921         if (rsnd_rdai_is_clk_master(rdai)) {
922                 int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
923
924                 snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
925                                     is_play ? rsnd_soc_hw_rule_rate_playback :
926                                               rsnd_soc_hw_rule_rate_capture,
927                                     dai,
928                                     SNDRV_PCM_HW_PARAM_CHANNELS, -1);
929                 snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
930                                     is_play ? rsnd_soc_hw_rule_channels_playback :
931                                               rsnd_soc_hw_rule_channels_capture,
932                                     dai,
933                                     SNDRV_PCM_HW_PARAM_RATE, -1);
934         }
935
936         /*
937          * call rsnd_dai_call without spinlock
938          */
939         ret = rsnd_dai_call(nolock_start, io, priv);
940         if (ret < 0)
941                 rsnd_dai_call(nolock_stop, io, priv);
942
943         return ret;
944 }
945
946 static void rsnd_soc_dai_shutdown(struct snd_pcm_substream *substream,
947                                   struct snd_soc_dai *dai)
948 {
949         struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
950         struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai);
951         struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
952
953         /*
954          * call rsnd_dai_call without spinlock
955          */
956         rsnd_dai_call(nolock_stop, io, priv);
957
958         rsnd_dai_stream_quit(io);
959 }
960
961 static const struct snd_soc_dai_ops rsnd_soc_dai_ops = {
962         .startup        = rsnd_soc_dai_startup,
963         .shutdown       = rsnd_soc_dai_shutdown,
964         .trigger        = rsnd_soc_dai_trigger,
965         .set_fmt        = rsnd_soc_dai_set_fmt,
966         .set_tdm_slot   = rsnd_soc_set_dai_tdm_slot,
967 };
968
969 void rsnd_parse_connect_common(struct rsnd_dai *rdai,
970                 struct rsnd_mod* (*mod_get)(struct rsnd_priv *priv, int id),
971                 struct device_node *node,
972                 struct device_node *playback,
973                 struct device_node *capture)
974 {
975         struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai);
976         struct device_node *np;
977         struct rsnd_mod *mod;
978         int i;
979
980         if (!node)
981                 return;
982
983         i = 0;
984         for_each_child_of_node(node, np) {
985                 mod = mod_get(priv, i);
986                 if (np == playback)
987                         rsnd_dai_connect(mod, &rdai->playback, mod->type);
988                 if (np == capture)
989                         rsnd_dai_connect(mod, &rdai->capture, mod->type);
990                 i++;
991         }
992
993         of_node_put(node);
994 }
995
996 static struct device_node *rsnd_dai_of_node(struct rsnd_priv *priv,
997                                             int *is_graph)
998 {
999         struct device *dev = rsnd_priv_to_dev(priv);
1000         struct device_node *np = dev->of_node;
1001         struct device_node *dai_node;
1002         struct device_node *ret;
1003
1004         *is_graph = 0;
1005
1006         /*
1007          * parse both previous dai (= rcar_sound,dai), and
1008          * graph dai (= ports/port)
1009          */
1010         dai_node = of_get_child_by_name(np, RSND_NODE_DAI);
1011         if (dai_node) {
1012                 ret = dai_node;
1013                 goto of_node_compatible;
1014         }
1015
1016         ret = np;
1017
1018         dai_node = of_graph_get_next_endpoint(np, NULL);
1019         if (dai_node)
1020                 goto of_node_graph;
1021
1022         return NULL;
1023
1024 of_node_graph:
1025         *is_graph = 1;
1026 of_node_compatible:
1027         of_node_put(dai_node);
1028
1029         return ret;
1030 }
1031
1032 static void __rsnd_dai_probe(struct rsnd_priv *priv,
1033                              struct device_node *dai_np,
1034                              int dai_i)
1035 {
1036         struct device_node *playback, *capture;
1037         struct rsnd_dai_stream *io_playback;
1038         struct rsnd_dai_stream *io_capture;
1039         struct snd_soc_dai_driver *drv;
1040         struct rsnd_dai *rdai;
1041         struct device *dev = rsnd_priv_to_dev(priv);
1042         int io_i;
1043
1044         rdai            = rsnd_rdai_get(priv, dai_i);
1045         drv             = rsnd_daidrv_get(priv, dai_i);
1046         io_playback     = &rdai->playback;
1047         io_capture      = &rdai->capture;
1048
1049         snprintf(rdai->name, RSND_DAI_NAME_SIZE, "rsnd-dai.%d", dai_i);
1050
1051         rdai->priv      = priv;
1052         drv->name       = rdai->name;
1053         drv->ops        = &rsnd_soc_dai_ops;
1054
1055         snprintf(rdai->playback.name, RSND_DAI_NAME_SIZE,
1056                  "DAI%d Playback", dai_i);
1057         drv->playback.rates             = RSND_RATES;
1058         drv->playback.formats           = RSND_FMTS;
1059         drv->playback.channels_min      = 2;
1060         drv->playback.channels_max      = 8;
1061         drv->playback.stream_name       = rdai->playback.name;
1062
1063         snprintf(rdai->capture.name, RSND_DAI_NAME_SIZE,
1064                  "DAI%d Capture", dai_i);
1065         drv->capture.rates              = RSND_RATES;
1066         drv->capture.formats            = RSND_FMTS;
1067         drv->capture.channels_min       = 2;
1068         drv->capture.channels_max       = 8;
1069         drv->capture.stream_name        = rdai->capture.name;
1070
1071         rdai->playback.rdai             = rdai;
1072         rdai->capture.rdai              = rdai;
1073         rsnd_rdai_channels_set(rdai, 2); /* default 2ch */
1074         rsnd_rdai_ssi_lane_set(rdai, 1); /* default 1lane */
1075
1076         for (io_i = 0;; io_i++) {
1077                 playback = of_parse_phandle(dai_np, "playback", io_i);
1078                 capture  = of_parse_phandle(dai_np, "capture", io_i);
1079
1080                 if (!playback && !capture)
1081                         break;
1082
1083                 rsnd_parse_connect_ssi(rdai, playback, capture);
1084                 rsnd_parse_connect_src(rdai, playback, capture);
1085                 rsnd_parse_connect_ctu(rdai, playback, capture);
1086                 rsnd_parse_connect_mix(rdai, playback, capture);
1087                 rsnd_parse_connect_dvc(rdai, playback, capture);
1088
1089                 of_node_put(playback);
1090                 of_node_put(capture);
1091         }
1092
1093         dev_dbg(dev, "%s (%s/%s)\n", rdai->name,
1094                 rsnd_io_to_mod_ssi(io_playback) ? "play"    : " -- ",
1095                 rsnd_io_to_mod_ssi(io_capture) ? "capture" : "  --   ");
1096 }
1097
1098 static int rsnd_dai_probe(struct rsnd_priv *priv)
1099 {
1100         struct device_node *dai_node;
1101         struct device_node *dai_np;
1102         struct snd_soc_dai_driver *rdrv;
1103         struct device *dev = rsnd_priv_to_dev(priv);
1104         struct rsnd_dai *rdai;
1105         int nr;
1106         int is_graph;
1107         int dai_i;
1108
1109         dai_node = rsnd_dai_of_node(priv, &is_graph);
1110         if (is_graph)
1111                 nr = of_graph_get_endpoint_count(dai_node);
1112         else
1113                 nr = of_get_child_count(dai_node);
1114
1115         if (!nr)
1116                 return -EINVAL;
1117
1118         rdrv = devm_kcalloc(dev, nr, sizeof(*rdrv), GFP_KERNEL);
1119         rdai = devm_kcalloc(dev, nr, sizeof(*rdai), GFP_KERNEL);
1120         if (!rdrv || !rdai)
1121                 return -ENOMEM;
1122
1123         priv->rdai_nr   = nr;
1124         priv->daidrv    = rdrv;
1125         priv->rdai      = rdai;
1126
1127         /*
1128          * parse all dai
1129          */
1130         dai_i = 0;
1131         if (is_graph) {
1132                 for_each_endpoint_of_node(dai_node, dai_np) {
1133                         __rsnd_dai_probe(priv, dai_np, dai_i);
1134                         rsnd_ssi_parse_hdmi_connection(priv, dai_np, dai_i);
1135                         dai_i++;
1136                 }
1137         } else {
1138                 for_each_child_of_node(dai_node, dai_np)
1139                         __rsnd_dai_probe(priv, dai_np, dai_i++);
1140         }
1141
1142         return 0;
1143 }
1144
1145 /*
1146  *              pcm ops
1147  */
1148 static int rsnd_hw_params(struct snd_pcm_substream *substream,
1149                          struct snd_pcm_hw_params *hw_params)
1150 {
1151         struct snd_soc_dai *dai = rsnd_substream_to_dai(substream);
1152         struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
1153         struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
1154         int ret;
1155
1156         ret = rsnd_dai_call(hw_params, io, substream, hw_params);
1157         if (ret)
1158                 return ret;
1159
1160         return snd_pcm_lib_malloc_pages(substream,
1161                                         params_buffer_bytes(hw_params));
1162 }
1163
1164 static snd_pcm_uframes_t rsnd_pointer(struct snd_pcm_substream *substream)
1165 {
1166         struct snd_soc_dai *dai = rsnd_substream_to_dai(substream);
1167         struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
1168         struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
1169         snd_pcm_uframes_t pointer = 0;
1170
1171         rsnd_dai_call(pointer, io, &pointer);
1172
1173         return pointer;
1174 }
1175
1176 static const struct snd_pcm_ops rsnd_pcm_ops = {
1177         .ioctl          = snd_pcm_lib_ioctl,
1178         .hw_params      = rsnd_hw_params,
1179         .hw_free        = snd_pcm_lib_free_pages,
1180         .pointer        = rsnd_pointer,
1181 };
1182
1183 /*
1184  *              snd_kcontrol
1185  */
1186 static int rsnd_kctrl_info(struct snd_kcontrol *kctrl,
1187                            struct snd_ctl_elem_info *uinfo)
1188 {
1189         struct rsnd_kctrl_cfg *cfg = snd_kcontrol_chip(kctrl);
1190
1191         if (cfg->texts) {
1192                 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1193                 uinfo->count = cfg->size;
1194                 uinfo->value.enumerated.items = cfg->max;
1195                 if (uinfo->value.enumerated.item >= cfg->max)
1196                         uinfo->value.enumerated.item = cfg->max - 1;
1197                 strlcpy(uinfo->value.enumerated.name,
1198                         cfg->texts[uinfo->value.enumerated.item],
1199                         sizeof(uinfo->value.enumerated.name));
1200         } else {
1201                 uinfo->count = cfg->size;
1202                 uinfo->value.integer.min = 0;
1203                 uinfo->value.integer.max = cfg->max;
1204                 uinfo->type = (cfg->max == 1) ?
1205                         SNDRV_CTL_ELEM_TYPE_BOOLEAN :
1206                         SNDRV_CTL_ELEM_TYPE_INTEGER;
1207         }
1208
1209         return 0;
1210 }
1211
1212 static int rsnd_kctrl_get(struct snd_kcontrol *kctrl,
1213                           struct snd_ctl_elem_value *uc)
1214 {
1215         struct rsnd_kctrl_cfg *cfg = snd_kcontrol_chip(kctrl);
1216         int i;
1217
1218         for (i = 0; i < cfg->size; i++)
1219                 if (cfg->texts)
1220                         uc->value.enumerated.item[i] = cfg->val[i];
1221                 else
1222                         uc->value.integer.value[i] = cfg->val[i];
1223
1224         return 0;
1225 }
1226
1227 static int rsnd_kctrl_put(struct snd_kcontrol *kctrl,
1228                           struct snd_ctl_elem_value *uc)
1229 {
1230         struct rsnd_kctrl_cfg *cfg = snd_kcontrol_chip(kctrl);
1231         int i, change = 0;
1232
1233         if (!cfg->accept(cfg->io))
1234                 return 0;
1235
1236         for (i = 0; i < cfg->size; i++) {
1237                 if (cfg->texts) {
1238                         change |= (uc->value.enumerated.item[i] != cfg->val[i]);
1239                         cfg->val[i] = uc->value.enumerated.item[i];
1240                 } else {
1241                         change |= (uc->value.integer.value[i] != cfg->val[i]);
1242                         cfg->val[i] = uc->value.integer.value[i];
1243                 }
1244         }
1245
1246         if (change && cfg->update)
1247                 cfg->update(cfg->io, cfg->mod);
1248
1249         return change;
1250 }
1251
1252 int rsnd_kctrl_accept_anytime(struct rsnd_dai_stream *io)
1253 {
1254         return 1;
1255 }
1256
1257 int rsnd_kctrl_accept_runtime(struct rsnd_dai_stream *io)
1258 {
1259         struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
1260
1261         return !!runtime;
1262 }
1263
1264 struct rsnd_kctrl_cfg *rsnd_kctrl_init_m(struct rsnd_kctrl_cfg_m *cfg)
1265 {
1266         cfg->cfg.val = cfg->val;
1267
1268         return &cfg->cfg;
1269 }
1270
1271 struct rsnd_kctrl_cfg *rsnd_kctrl_init_s(struct rsnd_kctrl_cfg_s *cfg)
1272 {
1273         cfg->cfg.val = &cfg->val;
1274
1275         return &cfg->cfg;
1276 }
1277
1278 const char * const volume_ramp_rate[] = {
1279         "128 dB/1 step",         /* 00000 */
1280         "64 dB/1 step",          /* 00001 */
1281         "32 dB/1 step",          /* 00010 */
1282         "16 dB/1 step",          /* 00011 */
1283         "8 dB/1 step",           /* 00100 */
1284         "4 dB/1 step",           /* 00101 */
1285         "2 dB/1 step",           /* 00110 */
1286         "1 dB/1 step",           /* 00111 */
1287         "0.5 dB/1 step",         /* 01000 */
1288         "0.25 dB/1 step",        /* 01001 */
1289         "0.125 dB/1 step",       /* 01010 = VOLUME_RAMP_MAX_MIX */
1290         "0.125 dB/2 steps",      /* 01011 */
1291         "0.125 dB/4 steps",      /* 01100 */
1292         "0.125 dB/8 steps",      /* 01101 */
1293         "0.125 dB/16 steps",     /* 01110 */
1294         "0.125 dB/32 steps",     /* 01111 */
1295         "0.125 dB/64 steps",     /* 10000 */
1296         "0.125 dB/128 steps",    /* 10001 */
1297         "0.125 dB/256 steps",    /* 10010 */
1298         "0.125 dB/512 steps",    /* 10011 */
1299         "0.125 dB/1024 steps",   /* 10100 */
1300         "0.125 dB/2048 steps",   /* 10101 */
1301         "0.125 dB/4096 steps",   /* 10110 */
1302         "0.125 dB/8192 steps",   /* 10111 = VOLUME_RAMP_MAX_DVC */
1303 };
1304
1305 int rsnd_kctrl_new(struct rsnd_mod *mod,
1306                    struct rsnd_dai_stream *io,
1307                    struct snd_soc_pcm_runtime *rtd,
1308                    const unsigned char *name,
1309                    int (*accept)(struct rsnd_dai_stream *io),
1310                    void (*update)(struct rsnd_dai_stream *io,
1311                                   struct rsnd_mod *mod),
1312                    struct rsnd_kctrl_cfg *cfg,
1313                    const char * const *texts,
1314                    int size,
1315                    u32 max)
1316 {
1317         struct snd_card *card = rtd->card->snd_card;
1318         struct snd_kcontrol *kctrl;
1319         struct snd_kcontrol_new knew = {
1320                 .iface          = SNDRV_CTL_ELEM_IFACE_MIXER,
1321                 .name           = name,
1322                 .info           = rsnd_kctrl_info,
1323                 .index          = rtd->num,
1324                 .get            = rsnd_kctrl_get,
1325                 .put            = rsnd_kctrl_put,
1326         };
1327         int ret;
1328
1329         if (size > RSND_MAX_CHANNELS)
1330                 return -EINVAL;
1331
1332         kctrl = snd_ctl_new1(&knew, cfg);
1333         if (!kctrl)
1334                 return -ENOMEM;
1335
1336         ret = snd_ctl_add(card, kctrl);
1337         if (ret < 0)
1338                 return ret;
1339
1340         cfg->texts      = texts;
1341         cfg->max        = max;
1342         cfg->size       = size;
1343         cfg->accept     = accept;
1344         cfg->update     = update;
1345         cfg->card       = card;
1346         cfg->kctrl      = kctrl;
1347         cfg->io         = io;
1348         cfg->mod        = mod;
1349
1350         return 0;
1351 }
1352
1353 /*
1354  *              snd_soc_component
1355  */
1356
1357 #define PREALLOC_BUFFER         (32 * 1024)
1358 #define PREALLOC_BUFFER_MAX     (32 * 1024)
1359
1360 static int rsnd_preallocate_pages(struct snd_soc_pcm_runtime *rtd,
1361                                   struct rsnd_dai_stream *io,
1362                                   int stream)
1363 {
1364         struct rsnd_priv *priv = rsnd_io_to_priv(io);
1365         struct device *dev = rsnd_priv_to_dev(priv);
1366         struct snd_pcm_substream *substream;
1367         int err;
1368
1369         /*
1370          * use Audio-DMAC dev if we can use IPMMU
1371          * see
1372          *      rsnd_dmaen_attach()
1373          */
1374         if (io->dmac_dev)
1375                 dev = io->dmac_dev;
1376
1377         for (substream = rtd->pcm->streams[stream].substream;
1378              substream;
1379              substream = substream->next) {
1380                 err = snd_pcm_lib_preallocate_pages(substream,
1381                                         SNDRV_DMA_TYPE_DEV,
1382                                         dev,
1383                                         PREALLOC_BUFFER, PREALLOC_BUFFER_MAX);
1384                 if (err < 0)
1385                         return err;
1386         }
1387
1388         return 0;
1389 }
1390
1391 static int rsnd_pcm_new(struct snd_soc_pcm_runtime *rtd)
1392 {
1393         struct snd_soc_dai *dai = rtd->cpu_dai;
1394         struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
1395         int ret;
1396
1397         ret = rsnd_dai_call(pcm_new, &rdai->playback, rtd);
1398         if (ret)
1399                 return ret;
1400
1401         ret = rsnd_dai_call(pcm_new, &rdai->capture, rtd);
1402         if (ret)
1403                 return ret;
1404
1405         ret = rsnd_preallocate_pages(rtd, &rdai->playback,
1406                                      SNDRV_PCM_STREAM_PLAYBACK);
1407         if (ret)
1408                 return ret;
1409
1410         ret = rsnd_preallocate_pages(rtd, &rdai->capture,
1411                                      SNDRV_PCM_STREAM_CAPTURE);
1412         if (ret)
1413                 return ret;
1414
1415         return 0;
1416 }
1417
1418 static const struct snd_soc_component_driver rsnd_soc_component = {
1419         .ops            = &rsnd_pcm_ops,
1420         .pcm_new        = rsnd_pcm_new,
1421         .name           = "rsnd",
1422 };
1423
1424 static int rsnd_rdai_continuance_probe(struct rsnd_priv *priv,
1425                                        struct rsnd_dai_stream *io)
1426 {
1427         int ret;
1428
1429         ret = rsnd_dai_call(probe, io, priv);
1430         if (ret == -EAGAIN) {
1431                 struct rsnd_mod *ssi_mod = rsnd_io_to_mod_ssi(io);
1432                 struct rsnd_mod *mod;
1433                 int i;
1434
1435                 /*
1436                  * Fallback to PIO mode
1437                  */
1438
1439                 /*
1440                  * call "remove" for SSI/SRC/DVC
1441                  * SSI will be switch to PIO mode if it was DMA mode
1442                  * see
1443                  *      rsnd_dma_init()
1444                  *      rsnd_ssi_fallback()
1445                  */
1446                 rsnd_dai_call(remove, io, priv);
1447
1448                 /*
1449                  * remove all mod from io
1450                  * and, re connect ssi
1451                  */
1452                 for_each_rsnd_mod(i, mod, io)
1453                         rsnd_dai_disconnect(mod, io, i);
1454                 rsnd_dai_connect(ssi_mod, io, RSND_MOD_SSI);
1455
1456                 /*
1457                  * fallback
1458                  */
1459                 rsnd_dai_call(fallback, io, priv);
1460
1461                 /*
1462                  * retry to "probe".
1463                  * DAI has SSI which is PIO mode only now.
1464                  */
1465                 ret = rsnd_dai_call(probe, io, priv);
1466         }
1467
1468         return ret;
1469 }
1470
1471 /*
1472  *      rsnd probe
1473  */
1474 static int rsnd_probe(struct platform_device *pdev)
1475 {
1476         struct rsnd_priv *priv;
1477         struct device *dev = &pdev->dev;
1478         struct rsnd_dai *rdai;
1479         int (*probe_func[])(struct rsnd_priv *priv) = {
1480                 rsnd_gen_probe,
1481                 rsnd_dma_probe,
1482                 rsnd_ssi_probe,
1483                 rsnd_ssiu_probe,
1484                 rsnd_src_probe,
1485                 rsnd_ctu_probe,
1486                 rsnd_mix_probe,
1487                 rsnd_dvc_probe,
1488                 rsnd_cmd_probe,
1489                 rsnd_adg_probe,
1490                 rsnd_dai_probe,
1491         };
1492         int ret, i;
1493
1494         /*
1495          *      init priv data
1496          */
1497         priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
1498         if (!priv)
1499                 return -ENODEV;
1500
1501         priv->pdev      = pdev;
1502         priv->flags     = (unsigned long)of_device_get_match_data(dev);
1503         spin_lock_init(&priv->lock);
1504
1505         /*
1506          *      init each module
1507          */
1508         for (i = 0; i < ARRAY_SIZE(probe_func); i++) {
1509                 ret = probe_func[i](priv);
1510                 if (ret)
1511                         return ret;
1512         }
1513
1514         for_each_rsnd_dai(rdai, priv, i) {
1515                 ret = rsnd_rdai_continuance_probe(priv, &rdai->playback);
1516                 if (ret)
1517                         goto exit_snd_probe;
1518
1519                 ret = rsnd_rdai_continuance_probe(priv, &rdai->capture);
1520                 if (ret)
1521                         goto exit_snd_probe;
1522         }
1523
1524         dev_set_drvdata(dev, priv);
1525
1526         /*
1527          *      asoc register
1528          */
1529         ret = devm_snd_soc_register_component(dev, &rsnd_soc_component,
1530                                          priv->daidrv, rsnd_rdai_nr(priv));
1531         if (ret < 0) {
1532                 dev_err(dev, "cannot snd dai register\n");
1533                 goto exit_snd_probe;
1534         }
1535
1536         pm_runtime_enable(dev);
1537
1538         dev_info(dev, "probed\n");
1539         return ret;
1540
1541 exit_snd_probe:
1542         for_each_rsnd_dai(rdai, priv, i) {
1543                 rsnd_dai_call(remove, &rdai->playback, priv);
1544                 rsnd_dai_call(remove, &rdai->capture, priv);
1545         }
1546
1547         return ret;
1548 }
1549
1550 static int rsnd_remove(struct platform_device *pdev)
1551 {
1552         struct rsnd_priv *priv = dev_get_drvdata(&pdev->dev);
1553         struct rsnd_dai *rdai;
1554         void (*remove_func[])(struct rsnd_priv *priv) = {
1555                 rsnd_ssi_remove,
1556                 rsnd_ssiu_remove,
1557                 rsnd_src_remove,
1558                 rsnd_ctu_remove,
1559                 rsnd_mix_remove,
1560                 rsnd_dvc_remove,
1561                 rsnd_cmd_remove,
1562                 rsnd_adg_remove,
1563         };
1564         int ret = 0, i;
1565
1566         snd_soc_disconnect_sync(&pdev->dev);
1567
1568         pm_runtime_disable(&pdev->dev);
1569
1570         for_each_rsnd_dai(rdai, priv, i) {
1571                 ret |= rsnd_dai_call(remove, &rdai->playback, priv);
1572                 ret |= rsnd_dai_call(remove, &rdai->capture, priv);
1573         }
1574
1575         for (i = 0; i < ARRAY_SIZE(remove_func); i++)
1576                 remove_func[i](priv);
1577
1578         return ret;
1579 }
1580
1581 static int __maybe_unused rsnd_suspend(struct device *dev)
1582 {
1583         struct rsnd_priv *priv = dev_get_drvdata(dev);
1584
1585         rsnd_adg_clk_disable(priv);
1586
1587         return 0;
1588 }
1589
1590 static int __maybe_unused rsnd_resume(struct device *dev)
1591 {
1592         struct rsnd_priv *priv = dev_get_drvdata(dev);
1593
1594         rsnd_adg_clk_enable(priv);
1595
1596         return 0;
1597 }
1598
1599 static const struct dev_pm_ops rsnd_pm_ops = {
1600         SET_SYSTEM_SLEEP_PM_OPS(rsnd_suspend, rsnd_resume)
1601 };
1602
1603 static struct platform_driver rsnd_driver = {
1604         .driver = {
1605                 .name   = "rcar_sound",
1606                 .pm     = &rsnd_pm_ops,
1607                 .of_match_table = rsnd_of_match,
1608         },
1609         .probe          = rsnd_probe,
1610         .remove         = rsnd_remove,
1611 };
1612 module_platform_driver(rsnd_driver);
1613
1614 MODULE_LICENSE("GPL v2");
1615 MODULE_DESCRIPTION("Renesas R-Car audio driver");
1616 MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
1617 MODULE_ALIAS("platform:rcar-pcm-audio");