2 * Renesas R-Car SRU/SCU/SSIU/SSI support
4 * Copyright (C) 2013 Renesas Solutions Corp.
5 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
8 * Kuninori Morimoto <morimoto.kuninori@renesas.com>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
16 * Renesas R-Car sound device structure
20 * SRU : Sound Routing Unit
21 * - SRC : Sampling Rate Converter
23 * - CTU : Channel Count Conversion Unit
25 * - DVC : Digital Volume and Mute Function
26 * - SSI : Serial Sound Interface
30 * SCU : Sampling Rate Converter Unit
31 * - SRC : Sampling Rate Converter
33 * - CTU : Channel Count Conversion Unit
35 * - DVC : Digital Volume and Mute Function
36 * SSIU : Serial Sound Interface Unit
37 * - SSI : Serial Sound Interface
45 * | ** this depends on Gen1/Gen2
49 * | ** these depend on data path
50 * | ** gen and platform data control it
54 * | +- playback -> [mod] -> [mod] -> [mod] -> ...
57 * | +- capture -> [mod] -> [mod] -> [mod] -> ...
61 * | +- playback -> [mod] -> [mod] -> [mod] -> ...
64 * | +- capture -> [mod] -> [mod] -> [mod] -> ...
67 * | ** these control ssi
76 * | ** these control src
86 * for_each_rsnd_dai(xx, priv, xx)
87 * rdai[0] => rdai[1] => rdai[2] => ...
89 * for_each_rsnd_mod(xx, rdai, xx)
90 * [mod] => [mod] => [mod] => ...
92 * rsnd_dai_call(xxx, fn )
93 * [mod]->fn() -> [mod]->fn() -> [mod]->fn()...
96 #include <linux/pm_runtime.h>
99 #define RSND_RATES SNDRV_PCM_RATE_8000_96000
100 #define RSND_FMTS (SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE)
102 static const struct rsnd_of_data rsnd_of_data_gen1
= {
106 static const struct rsnd_of_data rsnd_of_data_gen2
= {
110 static const struct of_device_id rsnd_of_match
[] = {
111 { .compatible
= "renesas,rcar_sound-gen1", .data
= &rsnd_of_data_gen1
},
112 { .compatible
= "renesas,rcar_sound-gen2", .data
= &rsnd_of_data_gen2
},
115 MODULE_DEVICE_TABLE(of
, rsnd_of_match
);
118 * rsnd_platform functions
120 #define rsnd_platform_call(priv, dai, func, param...) \
121 (!(priv->info->func) ? 0 : \
122 priv->info->func(param))
124 #define rsnd_is_enable_path(io, name) \
125 ((io)->info ? (io)->info->name : NULL)
126 #define rsnd_info_id(priv, io, name) \
127 ((io)->info->name - priv->info->name##_info)
132 char *rsnd_mod_name(struct rsnd_mod
*mod
)
134 if (!mod
|| !mod
->ops
)
137 return mod
->ops
->name
;
140 struct dma_chan
*rsnd_mod_dma_req(struct rsnd_dai_stream
*io
,
141 struct rsnd_mod
*mod
)
143 if (!mod
|| !mod
->ops
|| !mod
->ops
->dma_req
)
146 return mod
->ops
->dma_req(io
, mod
);
149 int rsnd_mod_init(struct rsnd_priv
*priv
,
150 struct rsnd_mod
*mod
,
151 struct rsnd_mod_ops
*ops
,
153 enum rsnd_mod_type type
,
156 int ret
= clk_prepare(clk
);
170 void rsnd_mod_quit(struct rsnd_mod
*mod
)
173 clk_unprepare(mod
->clk
);
176 void rsnd_mod_interrupt(struct rsnd_mod
*mod
,
177 void (*callback
)(struct rsnd_mod
*mod
,
178 struct rsnd_dai_stream
*io
))
180 struct rsnd_priv
*priv
= rsnd_mod_to_priv(mod
);
181 struct rsnd_dai_stream
*io
;
182 struct rsnd_dai
*rdai
;
185 for_each_rsnd_dai(rdai
, priv
, j
) {
187 for (i
= 0; i
< RSND_MOD_MAX
; i
++) {
188 io
= &rdai
->playback
;
189 if (mod
== io
->mod
[i
])
193 if (mod
== io
->mod
[i
])
199 int rsnd_io_is_working(struct rsnd_dai_stream
*io
)
201 /* see rsnd_dai_stream_init/quit() */
202 return !!io
->substream
;
208 u32
rsnd_get_adinr_bit(struct rsnd_mod
*mod
, struct rsnd_dai_stream
*io
)
210 struct rsnd_priv
*priv
= rsnd_mod_to_priv(mod
);
211 struct snd_pcm_runtime
*runtime
= rsnd_io_to_runtime(io
);
212 struct device
*dev
= rsnd_priv_to_dev(priv
);
213 u32 adinr
= runtime
->channels
;
215 switch (runtime
->sample_bits
) {
223 dev_warn(dev
, "not supported sample bits\n");
230 u32
rsnd_get_adinr_chan(struct rsnd_mod
*mod
, struct rsnd_dai_stream
*io
)
232 struct rsnd_priv
*priv
= rsnd_mod_to_priv(mod
);
233 struct snd_pcm_runtime
*runtime
= rsnd_io_to_runtime(io
);
234 struct device
*dev
= rsnd_priv_to_dev(priv
);
235 u32 chan
= runtime
->channels
;
245 dev_warn(dev
, "not supported channel\n");
256 u32
rsnd_get_dalign(struct rsnd_mod
*mod
, struct rsnd_dai_stream
*io
)
258 struct rsnd_mod
*src
= rsnd_io_to_mod_src(io
);
259 struct rsnd_mod
*ssi
= rsnd_io_to_mod_ssi(io
);
260 struct rsnd_mod
*target
= src
? src
: ssi
;
261 struct snd_pcm_runtime
*runtime
= rsnd_io_to_runtime(io
);
262 u32 val
= 0x76543210;
265 mask
<<= runtime
->channels
* 4;
268 switch (runtime
->sample_bits
) {
270 val
|= 0x67452301 & ~mask
;
273 val
|= 0x76543210 & ~mask
;
278 * exchange channeles on SRC if possible,
279 * otherwise, R/L volume settings on DVC
280 * changes inverted channels
291 #define __rsnd_mod_call(mod, io, func, param...) \
293 struct rsnd_priv *priv = rsnd_mod_to_priv(mod); \
294 struct device *dev = rsnd_priv_to_dev(priv); \
295 u32 mask = 0xF << __rsnd_mod_shift_##func; \
296 u8 val = (mod->status >> __rsnd_mod_shift_##func) & 0xF; \
297 u8 add = ((val + __rsnd_mod_add_##func) & 0xF); \
300 if (val == __rsnd_mod_call_##func) { \
302 ret = (mod)->ops->func(mod, io, param); \
304 mod->status = (mod->status & ~mask) + \
305 (add << __rsnd_mod_shift_##func); \
306 dev_dbg(dev, "%s[%d] 0x%08x %s\n", \
307 rsnd_mod_name(mod), rsnd_mod_id(mod), mod->status, \
308 called ? #func : ""); \
312 #define rsnd_mod_call(mod, io, func, param...) \
313 (!(mod) ? -ENODEV : \
314 !((mod)->ops->func) ? 0 : \
315 __rsnd_mod_call(mod, io, func, param))
317 #define rsnd_dai_call(fn, io, param...) \
319 struct rsnd_mod *mod; \
321 for (i = 0; i < RSND_MOD_MAX; i++) { \
322 mod = (io)->mod[i]; \
325 ret = rsnd_mod_call(mod, io, fn, param); \
332 static int rsnd_dai_connect(struct rsnd_mod
*mod
,
333 struct rsnd_dai_stream
*io
)
335 struct rsnd_priv
*priv
;
341 priv
= rsnd_mod_to_priv(mod
);
342 dev
= rsnd_priv_to_dev(priv
);
344 io
->mod
[mod
->type
] = mod
;
346 dev_dbg(dev
, "%s[%d] is connected to io (%s)\n",
347 rsnd_mod_name(mod
), rsnd_mod_id(mod
),
348 rsnd_io_is_play(io
) ? "Playback" : "Capture");
353 static void rsnd_dai_disconnect(struct rsnd_mod
*mod
,
354 struct rsnd_dai_stream
*io
)
356 io
->mod
[mod
->type
] = NULL
;
359 struct rsnd_dai
*rsnd_rdai_get(struct rsnd_priv
*priv
, int id
)
361 if ((id
< 0) || (id
>= rsnd_rdai_nr(priv
)))
364 return priv
->rdai
+ id
;
367 #define rsnd_dai_to_priv(dai) snd_soc_dai_get_drvdata(dai)
368 static struct rsnd_dai
*rsnd_dai_to_rdai(struct snd_soc_dai
*dai
)
370 struct rsnd_priv
*priv
= rsnd_dai_to_priv(dai
);
372 return rsnd_rdai_get(priv
, dai
->id
);
376 * rsnd_soc_dai functions
378 int rsnd_dai_pointer_offset(struct rsnd_dai_stream
*io
, int additional
)
380 struct snd_pcm_substream
*substream
= io
->substream
;
381 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
382 int pos
= io
->byte_pos
+ additional
;
384 pos
%= (runtime
->periods
* io
->byte_per_period
);
389 bool rsnd_dai_pointer_update(struct rsnd_dai_stream
*io
, int byte
)
391 io
->byte_pos
+= byte
;
393 if (io
->byte_pos
>= io
->next_period_byte
) {
394 struct snd_pcm_substream
*substream
= io
->substream
;
395 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
398 io
->next_period_byte
+= io
->byte_per_period
;
400 if (io
->period_pos
>= runtime
->periods
) {
403 io
->next_period_byte
= io
->byte_per_period
;
412 void rsnd_dai_period_elapsed(struct rsnd_dai_stream
*io
)
414 struct snd_pcm_substream
*substream
= io
->substream
;
417 * this function should be called...
419 * - if rsnd_dai_pointer_update() returns true
420 * - without spin lock
423 snd_pcm_period_elapsed(substream
);
426 static void rsnd_dai_stream_init(struct rsnd_dai_stream
*io
,
427 struct snd_pcm_substream
*substream
)
429 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
431 io
->substream
= substream
;
434 io
->byte_per_period
= runtime
->period_size
*
436 samples_to_bytes(runtime
, 1);
437 io
->next_period_byte
= io
->byte_per_period
;
440 static void rsnd_dai_stream_quit(struct rsnd_dai_stream
*io
)
442 io
->substream
= NULL
;
446 struct snd_soc_dai
*rsnd_substream_to_dai(struct snd_pcm_substream
*substream
)
448 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
454 struct rsnd_dai_stream
*rsnd_rdai_to_io(struct rsnd_dai
*rdai
,
455 struct snd_pcm_substream
*substream
)
457 if (substream
->stream
== SNDRV_PCM_STREAM_PLAYBACK
)
458 return &rdai
->playback
;
460 return &rdai
->capture
;
463 static int rsnd_soc_dai_trigger(struct snd_pcm_substream
*substream
, int cmd
,
464 struct snd_soc_dai
*dai
)
466 struct rsnd_priv
*priv
= rsnd_dai_to_priv(dai
);
467 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
468 struct rsnd_dai_stream
*io
= rsnd_rdai_to_io(rdai
, substream
);
469 int ssi_id
= rsnd_mod_id(rsnd_io_to_mod_ssi(io
));
473 spin_lock_irqsave(&priv
->lock
, flags
);
476 case SNDRV_PCM_TRIGGER_START
:
477 rsnd_dai_stream_init(io
, substream
);
479 ret
= rsnd_platform_call(priv
, dai
, start
, ssi_id
);
481 goto dai_trigger_end
;
483 ret
= rsnd_dai_call(init
, io
, priv
);
485 goto dai_trigger_end
;
487 ret
= rsnd_dai_call(start
, io
, priv
);
489 goto dai_trigger_end
;
491 case SNDRV_PCM_TRIGGER_STOP
:
492 ret
= rsnd_dai_call(stop
, io
, priv
);
494 goto dai_trigger_end
;
496 ret
= rsnd_dai_call(quit
, io
, priv
);
498 goto dai_trigger_end
;
500 ret
= rsnd_platform_call(priv
, dai
, stop
, ssi_id
);
502 goto dai_trigger_end
;
504 rsnd_dai_stream_quit(io
);
511 spin_unlock_irqrestore(&priv
->lock
, flags
);
516 static int rsnd_soc_dai_set_fmt(struct snd_soc_dai
*dai
, unsigned int fmt
)
518 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
520 /* set master/slave audio interface */
521 switch (fmt
& SND_SOC_DAIFMT_MASTER_MASK
) {
522 case SND_SOC_DAIFMT_CBM_CFM
:
523 rdai
->clk_master
= 0;
525 case SND_SOC_DAIFMT_CBS_CFS
:
526 rdai
->clk_master
= 1; /* codec is slave, cpu is master */
533 switch (fmt
& SND_SOC_DAIFMT_FORMAT_MASK
) {
534 case SND_SOC_DAIFMT_I2S
:
536 rdai
->data_alignment
= 0;
537 rdai
->frm_clk_inv
= 0;
539 case SND_SOC_DAIFMT_LEFT_J
:
541 rdai
->data_alignment
= 0;
542 rdai
->frm_clk_inv
= 1;
544 case SND_SOC_DAIFMT_RIGHT_J
:
546 rdai
->data_alignment
= 1;
547 rdai
->frm_clk_inv
= 1;
551 /* set clock inversion */
552 switch (fmt
& SND_SOC_DAIFMT_INV_MASK
) {
553 case SND_SOC_DAIFMT_NB_IF
:
554 rdai
->bit_clk_inv
= rdai
->bit_clk_inv
;
555 rdai
->frm_clk_inv
= !rdai
->frm_clk_inv
;
557 case SND_SOC_DAIFMT_IB_NF
:
558 rdai
->bit_clk_inv
= !rdai
->bit_clk_inv
;
559 rdai
->frm_clk_inv
= rdai
->frm_clk_inv
;
561 case SND_SOC_DAIFMT_IB_IF
:
562 rdai
->bit_clk_inv
= !rdai
->bit_clk_inv
;
563 rdai
->frm_clk_inv
= !rdai
->frm_clk_inv
;
565 case SND_SOC_DAIFMT_NB_NF
:
573 static const struct snd_soc_dai_ops rsnd_soc_dai_ops
= {
574 .trigger
= rsnd_soc_dai_trigger
,
575 .set_fmt
= rsnd_soc_dai_set_fmt
,
578 #define rsnd_path_add(priv, io, type) \
580 struct rsnd_mod *mod; \
584 if (rsnd_is_enable_path(io, type)) { \
585 id = rsnd_info_id(priv, io, type); \
587 mod = rsnd_##type##_mod_get(priv, id); \
588 ret = rsnd_dai_connect(mod, io); \
594 #define rsnd_path_remove(priv, io, type) \
596 struct rsnd_mod *mod; \
599 if (rsnd_is_enable_path(io, type)) { \
600 id = rsnd_info_id(priv, io, type); \
602 mod = rsnd_##type##_mod_get(priv, id); \
603 rsnd_dai_disconnect(mod, io); \
608 void rsnd_path_parse(struct rsnd_priv
*priv
,
609 struct rsnd_dai_stream
*io
)
611 struct rsnd_mod
*dvc
= rsnd_io_to_mod_dvc(io
);
612 struct rsnd_mod
*mix
= rsnd_io_to_mod_mix(io
);
613 struct rsnd_mod
*src
= rsnd_io_to_mod_src(io
);
614 struct rsnd_mod
*cmd
;
615 struct device
*dev
= rsnd_priv_to_dev(priv
);
618 /* Gen1 is not supported */
619 if (rsnd_is_gen1(priv
))
626 struct rsnd_dai
*rdai
;
638 * it is assuming that integrater is well understanding about
639 * data path. Here doesn't check impossible connection,
643 for_each_rsnd_dai(rdai
, priv
, i
) {
644 io
= &rdai
->playback
;
645 if (mix
== rsnd_io_to_mod_mix(io
))
646 data
|= path
[rsnd_mod_id(src
)];
649 if (mix
== rsnd_io_to_mod_mix(io
))
650 data
|= path
[rsnd_mod_id(src
)];
654 * We can't use ctu = rsnd_io_ctu() here.
655 * Since, ID of dvc/mix are 0 or 1 (= same as CMD number)
656 * but ctu IDs are 0 - 7 (= CTU00 - CTU13)
669 data
= path
[rsnd_mod_id(src
)];
674 dev_dbg(dev
, "ctu/mix path = 0x%08x", data
);
676 rsnd_mod_write(cmd
, CMD_ROUTE_SLCT
, data
);
678 rsnd_mod_write(cmd
, CMD_CTRL
, 0x10);
681 static int rsnd_path_init(struct rsnd_priv
*priv
,
682 struct rsnd_dai
*rdai
,
683 struct rsnd_dai_stream
*io
)
688 * Gen1 is created by SRU/SSI, and this SRU is base module of
689 * Gen2's SCU/SSIU/SSI. (Gen2 SCU/SSIU came from SRU)
692 * Gen1 SRU = Gen2 SCU + SSIU + etc
694 * Gen2 SCU path is very flexible, but, Gen1 SRU (SCU parts) is
699 ret
= rsnd_path_add(priv
, io
, ssi
);
704 ret
= rsnd_path_add(priv
, io
, src
);
709 ret
= rsnd_path_add(priv
, io
, ctu
);
714 ret
= rsnd_path_add(priv
, io
, mix
);
719 ret
= rsnd_path_add(priv
, io
, dvc
);
726 static void rsnd_of_parse_dai(struct platform_device
*pdev
,
727 const struct rsnd_of_data
*of_data
,
728 struct rsnd_priv
*priv
)
730 struct device_node
*dai_node
, *dai_np
;
731 struct device_node
*ssi_node
, *ssi_np
;
732 struct device_node
*src_node
, *src_np
;
733 struct device_node
*ctu_node
, *ctu_np
;
734 struct device_node
*mix_node
, *mix_np
;
735 struct device_node
*dvc_node
, *dvc_np
;
736 struct device_node
*playback
, *capture
;
737 struct rsnd_dai_platform_info
*dai_info
;
738 struct rcar_snd_info
*info
= rsnd_priv_to_info(priv
);
739 struct device
*dev
= &pdev
->dev
;
741 int dai_i
, ssi_i
, src_i
, ctu_i
, mix_i
, dvc_i
;
746 dai_node
= of_get_child_by_name(dev
->of_node
, "rcar_sound,dai");
750 nr
= of_get_child_count(dai_node
);
754 dai_info
= devm_kzalloc(dev
,
755 sizeof(struct rsnd_dai_platform_info
) * nr
,
758 dev_err(dev
, "dai info allocation error\n");
762 info
->dai_info_nr
= nr
;
763 info
->dai_info
= dai_info
;
765 ssi_node
= of_get_child_by_name(dev
->of_node
, "rcar_sound,ssi");
766 src_node
= of_get_child_by_name(dev
->of_node
, "rcar_sound,src");
767 ctu_node
= of_get_child_by_name(dev
->of_node
, "rcar_sound,ctu");
768 mix_node
= of_get_child_by_name(dev
->of_node
, "rcar_sound,mix");
769 dvc_node
= of_get_child_by_name(dev
->of_node
, "rcar_sound,dvc");
771 #define mod_parse(name) \
773 struct rsnd_##name##_platform_info *name##_info; \
776 for_each_child_of_node(name##_node, name##_np) { \
777 name##_info = info->name##_info + name##_i; \
779 if (name##_np == playback) \
780 dai_info->playback.name = name##_info; \
781 if (name##_np == capture) \
782 dai_info->capture.name = name##_info; \
792 for_each_child_of_node(dai_node
, dai_np
) {
793 dai_info
= info
->dai_info
+ dai_i
;
797 playback
= of_parse_phandle(dai_np
, "playback", i
);
798 capture
= of_parse_phandle(dai_np
, "capture", i
);
800 if (!playback
&& !capture
)
809 of_node_put(playback
);
810 of_node_put(capture
);
817 static int rsnd_dai_probe(struct platform_device
*pdev
,
818 const struct rsnd_of_data
*of_data
,
819 struct rsnd_priv
*priv
)
821 struct snd_soc_dai_driver
*drv
;
822 struct rcar_snd_info
*info
= rsnd_priv_to_info(priv
);
823 struct rsnd_dai
*rdai
;
824 struct rsnd_ssi_platform_info
*pmod
, *cmod
;
825 struct device
*dev
= rsnd_priv_to_dev(priv
);
829 rsnd_of_parse_dai(pdev
, of_data
, priv
);
831 dai_nr
= info
->dai_info_nr
;
833 dev_err(dev
, "no dai\n");
837 drv
= devm_kzalloc(dev
, sizeof(*drv
) * dai_nr
, GFP_KERNEL
);
838 rdai
= devm_kzalloc(dev
, sizeof(*rdai
) * dai_nr
, GFP_KERNEL
);
840 dev_err(dev
, "dai allocate failed\n");
844 priv
->rdai_nr
= dai_nr
;
848 for (i
= 0; i
< dai_nr
; i
++) {
850 pmod
= info
->dai_info
[i
].playback
.ssi
;
851 cmod
= info
->dai_info
[i
].capture
.ssi
;
856 snprintf(rdai
[i
].name
, RSND_DAI_NAME_SIZE
, "rsnd-dai.%d", i
);
860 * init snd_soc_dai_driver
862 drv
[i
].name
= rdai
[i
].name
;
863 drv
[i
].ops
= &rsnd_soc_dai_ops
;
865 snprintf(rdai
[i
].playback
.name
, RSND_DAI_NAME_SIZE
,
866 "DAI%d Playback", i
);
868 drv
[i
].playback
.rates
= RSND_RATES
;
869 drv
[i
].playback
.formats
= RSND_FMTS
;
870 drv
[i
].playback
.channels_min
= 2;
871 drv
[i
].playback
.channels_max
= 2;
872 drv
[i
].playback
.stream_name
= rdai
[i
].playback
.name
;
874 rdai
[i
].playback
.info
= &info
->dai_info
[i
].playback
;
875 rdai
[i
].playback
.rdai
= rdai
+ i
;
876 rsnd_path_init(priv
, &rdai
[i
], &rdai
[i
].playback
);
879 snprintf(rdai
[i
].capture
.name
, RSND_DAI_NAME_SIZE
,
882 drv
[i
].capture
.rates
= RSND_RATES
;
883 drv
[i
].capture
.formats
= RSND_FMTS
;
884 drv
[i
].capture
.channels_min
= 2;
885 drv
[i
].capture
.channels_max
= 2;
886 drv
[i
].capture
.stream_name
= rdai
[i
].capture
.name
;
888 rdai
[i
].capture
.info
= &info
->dai_info
[i
].capture
;
889 rdai
[i
].capture
.rdai
= rdai
+ i
;
890 rsnd_path_init(priv
, &rdai
[i
], &rdai
[i
].capture
);
893 dev_dbg(dev
, "%s (%s/%s)\n", rdai
[i
].name
,
894 pmod
? "play" : " -- ",
895 cmod
? "capture" : " -- ");
904 static struct snd_pcm_hardware rsnd_pcm_hardware
= {
905 .info
= SNDRV_PCM_INFO_INTERLEAVED
|
906 SNDRV_PCM_INFO_MMAP
|
907 SNDRV_PCM_INFO_MMAP_VALID
,
908 .buffer_bytes_max
= 64 * 1024,
909 .period_bytes_min
= 32,
910 .period_bytes_max
= 8192,
916 static int rsnd_pcm_open(struct snd_pcm_substream
*substream
)
918 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
921 snd_soc_set_runtime_hwparams(substream
, &rsnd_pcm_hardware
);
923 ret
= snd_pcm_hw_constraint_integer(runtime
,
924 SNDRV_PCM_HW_PARAM_PERIODS
);
929 static int rsnd_hw_params(struct snd_pcm_substream
*substream
,
930 struct snd_pcm_hw_params
*hw_params
)
932 struct snd_soc_dai
*dai
= rsnd_substream_to_dai(substream
);
933 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
934 struct rsnd_dai_stream
*io
= rsnd_rdai_to_io(rdai
, substream
);
937 ret
= rsnd_dai_call(hw_params
, io
, substream
, hw_params
);
941 return snd_pcm_lib_malloc_pages(substream
,
942 params_buffer_bytes(hw_params
));
945 static snd_pcm_uframes_t
rsnd_pointer(struct snd_pcm_substream
*substream
)
947 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
948 struct snd_soc_dai
*dai
= rsnd_substream_to_dai(substream
);
949 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
950 struct rsnd_dai_stream
*io
= rsnd_rdai_to_io(rdai
, substream
);
952 return bytes_to_frames(runtime
, io
->byte_pos
);
955 static struct snd_pcm_ops rsnd_pcm_ops
= {
956 .open
= rsnd_pcm_open
,
957 .ioctl
= snd_pcm_lib_ioctl
,
958 .hw_params
= rsnd_hw_params
,
959 .hw_free
= snd_pcm_lib_free_pages
,
960 .pointer
= rsnd_pointer
,
966 #define kcontrol_to_cfg(kctrl) ((struct rsnd_kctrl_cfg *)kctrl->private_value)
967 static int rsnd_kctrl_info(struct snd_kcontrol
*kctrl
,
968 struct snd_ctl_elem_info
*uinfo
)
970 struct rsnd_kctrl_cfg
*cfg
= kcontrol_to_cfg(kctrl
);
973 uinfo
->type
= SNDRV_CTL_ELEM_TYPE_ENUMERATED
;
974 uinfo
->count
= cfg
->size
;
975 uinfo
->value
.enumerated
.items
= cfg
->max
;
976 if (uinfo
->value
.enumerated
.item
>= cfg
->max
)
977 uinfo
->value
.enumerated
.item
= cfg
->max
- 1;
978 strlcpy(uinfo
->value
.enumerated
.name
,
979 cfg
->texts
[uinfo
->value
.enumerated
.item
],
980 sizeof(uinfo
->value
.enumerated
.name
));
982 uinfo
->count
= cfg
->size
;
983 uinfo
->value
.integer
.min
= 0;
984 uinfo
->value
.integer
.max
= cfg
->max
;
985 uinfo
->type
= (cfg
->max
== 1) ?
986 SNDRV_CTL_ELEM_TYPE_BOOLEAN
:
987 SNDRV_CTL_ELEM_TYPE_INTEGER
;
993 static int rsnd_kctrl_get(struct snd_kcontrol
*kctrl
,
994 struct snd_ctl_elem_value
*uc
)
996 struct rsnd_kctrl_cfg
*cfg
= kcontrol_to_cfg(kctrl
);
999 for (i
= 0; i
< cfg
->size
; i
++)
1001 uc
->value
.enumerated
.item
[i
] = cfg
->val
[i
];
1003 uc
->value
.integer
.value
[i
] = cfg
->val
[i
];
1008 static int rsnd_kctrl_put(struct snd_kcontrol
*kctrl
,
1009 struct snd_ctl_elem_value
*uc
)
1011 struct rsnd_mod
*mod
= snd_kcontrol_chip(kctrl
);
1012 struct rsnd_kctrl_cfg
*cfg
= kcontrol_to_cfg(kctrl
);
1015 for (i
= 0; i
< cfg
->size
; i
++) {
1017 change
|= (uc
->value
.enumerated
.item
[i
] != cfg
->val
[i
]);
1018 cfg
->val
[i
] = uc
->value
.enumerated
.item
[i
];
1020 change
|= (uc
->value
.integer
.value
[i
] != cfg
->val
[i
]);
1021 cfg
->val
[i
] = uc
->value
.integer
.value
[i
];
1026 cfg
->update(cfg
->io
, mod
);
1031 static int __rsnd_kctrl_new(struct rsnd_mod
*mod
,
1032 struct rsnd_dai_stream
*io
,
1033 struct snd_soc_pcm_runtime
*rtd
,
1034 const unsigned char *name
,
1035 struct rsnd_kctrl_cfg
*cfg
,
1036 void (*update
)(struct rsnd_dai_stream
*io
,
1037 struct rsnd_mod
*mod
))
1039 struct snd_soc_card
*soc_card
= rtd
->card
;
1040 struct snd_card
*card
= rtd
->card
->snd_card
;
1041 struct snd_kcontrol
*kctrl
;
1042 struct snd_kcontrol_new knew
= {
1043 .iface
= SNDRV_CTL_ELEM_IFACE_MIXER
,
1045 .info
= rsnd_kctrl_info
,
1046 .index
= rtd
- soc_card
->rtd
,
1047 .get
= rsnd_kctrl_get
,
1048 .put
= rsnd_kctrl_put
,
1049 .private_value
= (unsigned long)cfg
,
1053 kctrl
= snd_ctl_new1(&knew
, mod
);
1057 ret
= snd_ctl_add(card
, kctrl
);
1059 snd_ctl_free_one(kctrl
);
1063 cfg
->update
= update
;
1071 void _rsnd_kctrl_remove(struct rsnd_kctrl_cfg
*cfg
)
1073 snd_ctl_remove(cfg
->card
, cfg
->kctrl
);
1076 int rsnd_kctrl_new_m(struct rsnd_mod
*mod
,
1077 struct rsnd_dai_stream
*io
,
1078 struct snd_soc_pcm_runtime
*rtd
,
1079 const unsigned char *name
,
1080 void (*update
)(struct rsnd_dai_stream
*io
,
1081 struct rsnd_mod
*mod
),
1082 struct rsnd_kctrl_cfg_m
*_cfg
,
1085 _cfg
->cfg
.max
= max
;
1086 _cfg
->cfg
.size
= RSND_DVC_CHANNELS
;
1087 _cfg
->cfg
.val
= _cfg
->val
;
1088 return __rsnd_kctrl_new(mod
, io
, rtd
, name
, &_cfg
->cfg
, update
);
1091 int rsnd_kctrl_new_s(struct rsnd_mod
*mod
,
1092 struct rsnd_dai_stream
*io
,
1093 struct snd_soc_pcm_runtime
*rtd
,
1094 const unsigned char *name
,
1095 void (*update
)(struct rsnd_dai_stream
*io
,
1096 struct rsnd_mod
*mod
),
1097 struct rsnd_kctrl_cfg_s
*_cfg
,
1100 _cfg
->cfg
.max
= max
;
1102 _cfg
->cfg
.val
= &_cfg
->val
;
1103 return __rsnd_kctrl_new(mod
, io
, rtd
, name
, &_cfg
->cfg
, update
);
1106 int rsnd_kctrl_new_e(struct rsnd_mod
*mod
,
1107 struct rsnd_dai_stream
*io
,
1108 struct snd_soc_pcm_runtime
*rtd
,
1109 const unsigned char *name
,
1110 struct rsnd_kctrl_cfg_s
*_cfg
,
1111 void (*update
)(struct rsnd_dai_stream
*io
,
1112 struct rsnd_mod
*mod
),
1113 const char * const *texts
,
1116 _cfg
->cfg
.max
= max
;
1118 _cfg
->cfg
.val
= &_cfg
->val
;
1119 _cfg
->cfg
.texts
= texts
;
1120 return __rsnd_kctrl_new(mod
, io
, rtd
, name
, &_cfg
->cfg
, update
);
1127 #define PREALLOC_BUFFER (32 * 1024)
1128 #define PREALLOC_BUFFER_MAX (32 * 1024)
1130 static int rsnd_pcm_new(struct snd_soc_pcm_runtime
*rtd
)
1132 struct snd_soc_dai
*dai
= rtd
->cpu_dai
;
1133 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
1136 ret
= rsnd_dai_call(pcm_new
, &rdai
->playback
, rtd
);
1140 ret
= rsnd_dai_call(pcm_new
, &rdai
->capture
, rtd
);
1144 return snd_pcm_lib_preallocate_pages_for_all(
1147 rtd
->card
->snd_card
->dev
,
1148 PREALLOC_BUFFER
, PREALLOC_BUFFER_MAX
);
1151 static struct snd_soc_platform_driver rsnd_soc_platform
= {
1152 .ops
= &rsnd_pcm_ops
,
1153 .pcm_new
= rsnd_pcm_new
,
1156 static const struct snd_soc_component_driver rsnd_soc_component
= {
1160 static int rsnd_rdai_continuance_probe(struct rsnd_priv
*priv
,
1161 struct rsnd_dai_stream
*io
)
1165 ret
= rsnd_dai_call(probe
, io
, priv
);
1166 if (ret
== -EAGAIN
) {
1168 * Fallback to PIO mode
1172 * call "remove" for SSI/SRC/DVC
1173 * SSI will be switch to PIO mode if it was DMA mode
1176 * rsnd_ssi_fallback()
1178 rsnd_dai_call(remove
, io
, priv
);
1181 * remove SRC/DVC from DAI,
1183 rsnd_path_remove(priv
, io
, src
);
1184 rsnd_path_remove(priv
, io
, dvc
);
1189 rsnd_dai_call(fallback
, io
, priv
);
1193 * DAI has SSI which is PIO mode only now.
1195 ret
= rsnd_dai_call(probe
, io
, priv
);
1204 static int rsnd_probe(struct platform_device
*pdev
)
1206 struct rcar_snd_info
*info
;
1207 struct rsnd_priv
*priv
;
1208 struct device
*dev
= &pdev
->dev
;
1209 struct rsnd_dai
*rdai
;
1210 const struct of_device_id
*of_id
= of_match_device(rsnd_of_match
, dev
);
1211 const struct rsnd_of_data
*of_data
;
1212 int (*probe_func
[])(struct platform_device
*pdev
,
1213 const struct rsnd_of_data
*of_data
,
1214 struct rsnd_priv
*priv
) = {
1230 info
= devm_kzalloc(&pdev
->dev
,
1231 sizeof(struct rcar_snd_info
), GFP_KERNEL
);
1232 of_data
= of_id
->data
;
1234 info
= pdev
->dev
.platform_data
;
1238 dev_err(dev
, "driver needs R-Car sound information\n");
1245 priv
= devm_kzalloc(dev
, sizeof(*priv
), GFP_KERNEL
);
1247 dev_err(dev
, "priv allocate failed\n");
1253 spin_lock_init(&priv
->lock
);
1258 for (i
= 0; i
< ARRAY_SIZE(probe_func
); i
++) {
1259 ret
= probe_func
[i
](pdev
, of_data
, priv
);
1264 for_each_rsnd_dai(rdai
, priv
, i
) {
1265 ret
= rsnd_rdai_continuance_probe(priv
, &rdai
->playback
);
1267 goto exit_snd_probe
;
1269 ret
= rsnd_rdai_continuance_probe(priv
, &rdai
->capture
);
1271 goto exit_snd_probe
;
1274 dev_set_drvdata(dev
, priv
);
1279 ret
= snd_soc_register_platform(dev
, &rsnd_soc_platform
);
1281 dev_err(dev
, "cannot snd soc register\n");
1285 ret
= snd_soc_register_component(dev
, &rsnd_soc_component
,
1286 priv
->daidrv
, rsnd_rdai_nr(priv
));
1288 dev_err(dev
, "cannot snd dai register\n");
1292 pm_runtime_enable(dev
);
1294 dev_info(dev
, "probed\n");
1298 snd_soc_unregister_platform(dev
);
1300 for_each_rsnd_dai(rdai
, priv
, i
) {
1301 rsnd_dai_call(remove
, &rdai
->playback
, priv
);
1302 rsnd_dai_call(remove
, &rdai
->capture
, priv
);
1308 static int rsnd_remove(struct platform_device
*pdev
)
1310 struct rsnd_priv
*priv
= dev_get_drvdata(&pdev
->dev
);
1311 struct rsnd_dai
*rdai
;
1312 void (*remove_func
[])(struct platform_device
*pdev
,
1313 struct rsnd_priv
*priv
) = {
1322 pm_runtime_disable(&pdev
->dev
);
1324 for_each_rsnd_dai(rdai
, priv
, i
) {
1325 ret
|= rsnd_dai_call(remove
, &rdai
->playback
, priv
);
1326 ret
|= rsnd_dai_call(remove
, &rdai
->capture
, priv
);
1329 for (i
= 0; i
< ARRAY_SIZE(remove_func
); i
++)
1330 remove_func
[i
](pdev
, priv
);
1332 snd_soc_unregister_component(&pdev
->dev
);
1333 snd_soc_unregister_platform(&pdev
->dev
);
1338 static struct platform_driver rsnd_driver
= {
1340 .name
= "rcar_sound",
1341 .of_match_table
= rsnd_of_match
,
1343 .probe
= rsnd_probe
,
1344 .remove
= rsnd_remove
,
1346 module_platform_driver(rsnd_driver
);
1348 MODULE_LICENSE("GPL");
1349 MODULE_DESCRIPTION("Renesas R-Car audio driver");
1350 MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
1351 MODULE_ALIAS("platform:rcar-pcm-audio");