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_mod
*mod
)
142 if (!mod
|| !mod
->ops
|| !mod
->ops
->dma_req
)
145 return mod
->ops
->dma_req(mod
);
148 int rsnd_mod_init(struct rsnd_mod
*mod
,
149 struct rsnd_mod_ops
*ops
,
151 enum rsnd_mod_type type
,
154 int ret
= clk_prepare(clk
);
167 void rsnd_mod_quit(struct rsnd_mod
*mod
)
170 clk_unprepare(mod
->clk
);
176 u32
rsnd_get_adinr(struct rsnd_mod
*mod
)
178 struct rsnd_priv
*priv
= rsnd_mod_to_priv(mod
);
179 struct rsnd_dai_stream
*io
= rsnd_mod_to_io(mod
);
180 struct snd_pcm_runtime
*runtime
= rsnd_io_to_runtime(io
);
181 struct device
*dev
= rsnd_priv_to_dev(priv
);
182 u32 adinr
= runtime
->channels
;
184 switch (runtime
->sample_bits
) {
192 dev_warn(dev
, "not supported sample bits\n");
202 #define __rsnd_mod_call(mod, func, param...) \
204 struct rsnd_priv *priv = rsnd_mod_to_priv(mod); \
205 struct device *dev = rsnd_priv_to_dev(priv); \
206 u32 mask = (1 << __rsnd_mod_shift_##func) & ~(1 << 31); \
207 u32 call = __rsnd_mod_call_##func << __rsnd_mod_shift_##func; \
209 if ((mod->status & mask) == call) { \
210 dev_dbg(dev, "%s[%d] %s\n", \
211 rsnd_mod_name(mod), rsnd_mod_id(mod), #func); \
212 ret = (mod)->ops->func(mod, param); \
213 mod->status = (mod->status & ~mask) | (~call & mask); \
218 #define rsnd_mod_call(mod, func, param...) \
219 (!(mod) ? -ENODEV : \
220 !((mod)->ops->func) ? 0 : \
221 __rsnd_mod_call(mod, func, param))
223 #define rsnd_dai_call(fn, io, param...) \
225 struct rsnd_mod *mod; \
227 for (i = 0; i < RSND_MOD_MAX; i++) { \
228 mod = (io)->mod[i]; \
231 ret = rsnd_mod_call(mod, fn, param); \
238 static int rsnd_dai_connect(struct rsnd_mod
*mod
,
239 struct rsnd_dai_stream
*io
)
244 if (io
->mod
[mod
->type
]) {
245 struct rsnd_priv
*priv
= rsnd_mod_to_priv(mod
);
246 struct device
*dev
= rsnd_priv_to_dev(priv
);
248 dev_err(dev
, "%s[%d] is not empty\n",
254 io
->mod
[mod
->type
] = mod
;
260 static void rsnd_dai_disconnect(struct rsnd_mod
*mod
,
261 struct rsnd_dai_stream
*io
)
264 io
->mod
[mod
->type
] = NULL
;
267 struct rsnd_dai
*rsnd_rdai_get(struct rsnd_priv
*priv
, int id
)
269 if ((id
< 0) || (id
>= rsnd_rdai_nr(priv
)))
272 return priv
->rdai
+ id
;
275 static struct rsnd_dai
*rsnd_dai_to_rdai(struct snd_soc_dai
*dai
)
277 struct rsnd_priv
*priv
= snd_soc_dai_get_drvdata(dai
);
279 return rsnd_rdai_get(priv
, dai
->id
);
283 * rsnd_soc_dai functions
285 int rsnd_dai_pointer_offset(struct rsnd_dai_stream
*io
, int additional
)
287 struct snd_pcm_substream
*substream
= io
->substream
;
288 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
289 int pos
= io
->byte_pos
+ additional
;
291 pos
%= (runtime
->periods
* io
->byte_per_period
);
296 void rsnd_dai_pointer_update(struct rsnd_dai_stream
*io
, int byte
)
298 io
->byte_pos
+= byte
;
300 if (io
->byte_pos
>= io
->next_period_byte
) {
301 struct snd_pcm_substream
*substream
= io
->substream
;
302 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
305 io
->next_period_byte
+= io
->byte_per_period
;
307 if (io
->period_pos
>= runtime
->periods
) {
310 io
->next_period_byte
= io
->byte_per_period
;
313 snd_pcm_period_elapsed(substream
);
317 static int rsnd_dai_stream_init(struct rsnd_dai_stream
*io
,
318 struct snd_pcm_substream
*substream
)
320 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
322 io
->substream
= substream
;
325 io
->byte_per_period
= runtime
->period_size
*
327 samples_to_bytes(runtime
, 1);
328 io
->next_period_byte
= io
->byte_per_period
;
334 struct snd_soc_dai
*rsnd_substream_to_dai(struct snd_pcm_substream
*substream
)
336 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
342 struct rsnd_dai_stream
*rsnd_rdai_to_io(struct rsnd_dai
*rdai
,
343 struct snd_pcm_substream
*substream
)
345 if (substream
->stream
== SNDRV_PCM_STREAM_PLAYBACK
)
346 return &rdai
->playback
;
348 return &rdai
->capture
;
351 static int rsnd_soc_dai_trigger(struct snd_pcm_substream
*substream
, int cmd
,
352 struct snd_soc_dai
*dai
)
354 struct rsnd_priv
*priv
= snd_soc_dai_get_drvdata(dai
);
355 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
356 struct rsnd_dai_stream
*io
= rsnd_rdai_to_io(rdai
, substream
);
357 int ssi_id
= rsnd_mod_id(rsnd_io_to_mod_ssi(io
));
361 rsnd_lock(priv
, flags
);
364 case SNDRV_PCM_TRIGGER_START
:
365 ret
= rsnd_dai_stream_init(io
, substream
);
367 goto dai_trigger_end
;
369 ret
= rsnd_platform_call(priv
, dai
, start
, ssi_id
);
371 goto dai_trigger_end
;
373 ret
= rsnd_dai_call(init
, io
, priv
);
375 goto dai_trigger_end
;
377 ret
= rsnd_dai_call(start
, io
, priv
);
379 goto dai_trigger_end
;
381 case SNDRV_PCM_TRIGGER_STOP
:
382 ret
= rsnd_dai_call(stop
, io
, priv
);
384 goto dai_trigger_end
;
386 ret
= rsnd_dai_call(quit
, io
, priv
);
388 goto dai_trigger_end
;
390 ret
= rsnd_platform_call(priv
, dai
, stop
, ssi_id
);
392 goto dai_trigger_end
;
399 rsnd_unlock(priv
, flags
);
404 static int rsnd_soc_dai_set_fmt(struct snd_soc_dai
*dai
, unsigned int fmt
)
406 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
408 /* set master/slave audio interface */
409 switch (fmt
& SND_SOC_DAIFMT_MASTER_MASK
) {
410 case SND_SOC_DAIFMT_CBM_CFM
:
411 rdai
->clk_master
= 0;
413 case SND_SOC_DAIFMT_CBS_CFS
:
414 rdai
->clk_master
= 1; /* codec is slave, cpu is master */
421 switch (fmt
& SND_SOC_DAIFMT_FORMAT_MASK
) {
422 case SND_SOC_DAIFMT_I2S
:
424 rdai
->data_alignment
= 0;
425 rdai
->frm_clk_inv
= 0;
427 case SND_SOC_DAIFMT_LEFT_J
:
429 rdai
->data_alignment
= 0;
430 rdai
->frm_clk_inv
= 1;
432 case SND_SOC_DAIFMT_RIGHT_J
:
434 rdai
->data_alignment
= 1;
435 rdai
->frm_clk_inv
= 1;
439 /* set clock inversion */
440 switch (fmt
& SND_SOC_DAIFMT_INV_MASK
) {
441 case SND_SOC_DAIFMT_NB_IF
:
442 rdai
->bit_clk_inv
= rdai
->bit_clk_inv
;
443 rdai
->frm_clk_inv
= !rdai
->frm_clk_inv
;
445 case SND_SOC_DAIFMT_IB_NF
:
446 rdai
->bit_clk_inv
= !rdai
->bit_clk_inv
;
447 rdai
->frm_clk_inv
= rdai
->frm_clk_inv
;
449 case SND_SOC_DAIFMT_IB_IF
:
450 rdai
->bit_clk_inv
= !rdai
->bit_clk_inv
;
451 rdai
->frm_clk_inv
= !rdai
->frm_clk_inv
;
453 case SND_SOC_DAIFMT_NB_NF
:
461 static const struct snd_soc_dai_ops rsnd_soc_dai_ops
= {
462 .trigger
= rsnd_soc_dai_trigger
,
463 .set_fmt
= rsnd_soc_dai_set_fmt
,
466 #define rsnd_path_parse(priv, io, type) \
468 struct rsnd_mod *mod; \
472 if (rsnd_is_enable_path(io, type)) { \
473 id = rsnd_info_id(priv, io, type); \
475 mod = rsnd_##type##_mod_get(priv, id); \
476 ret = rsnd_dai_connect(mod, io); \
482 #define rsnd_path_break(priv, io, type) \
484 struct rsnd_mod *mod; \
487 if (rsnd_is_enable_path(io, type)) { \
488 id = rsnd_info_id(priv, io, type); \
490 mod = rsnd_##type##_mod_get(priv, id); \
491 rsnd_dai_disconnect(mod, io); \
496 static int rsnd_path_init(struct rsnd_priv
*priv
,
497 struct rsnd_dai
*rdai
,
498 struct rsnd_dai_stream
*io
)
503 * Gen1 is created by SRU/SSI, and this SRU is base module of
504 * Gen2's SCU/SSIU/SSI. (Gen2 SCU/SSIU came from SRU)
507 * Gen1 SRU = Gen2 SCU + SSIU + etc
509 * Gen2 SCU path is very flexible, but, Gen1 SRU (SCU parts) is
514 ret
= rsnd_path_parse(priv
, io
, src
);
519 ret
= rsnd_path_parse(priv
, io
, ssi
);
524 ret
= rsnd_path_parse(priv
, io
, dvc
);
531 static void rsnd_of_parse_dai(struct platform_device
*pdev
,
532 const struct rsnd_of_data
*of_data
,
533 struct rsnd_priv
*priv
)
535 struct device_node
*dai_node
, *dai_np
;
536 struct device_node
*ssi_node
, *ssi_np
;
537 struct device_node
*src_node
, *src_np
;
538 struct device_node
*dvc_node
, *dvc_np
;
539 struct device_node
*playback
, *capture
;
540 struct rsnd_dai_platform_info
*dai_info
;
541 struct rcar_snd_info
*info
= rsnd_priv_to_info(priv
);
542 struct device
*dev
= &pdev
->dev
;
544 int dai_i
, ssi_i
, src_i
, dvc_i
;
549 dai_node
= of_get_child_by_name(dev
->of_node
, "rcar_sound,dai");
553 nr
= of_get_child_count(dai_node
);
557 dai_info
= devm_kzalloc(dev
,
558 sizeof(struct rsnd_dai_platform_info
) * nr
,
561 dev_err(dev
, "dai info allocation error\n");
565 info
->dai_info_nr
= nr
;
566 info
->dai_info
= dai_info
;
568 ssi_node
= of_get_child_by_name(dev
->of_node
, "rcar_sound,ssi");
569 src_node
= of_get_child_by_name(dev
->of_node
, "rcar_sound,src");
570 dvc_node
= of_get_child_by_name(dev
->of_node
, "rcar_sound,dvc");
572 #define mod_parse(name) \
574 struct rsnd_##name##_platform_info *name##_info; \
577 for_each_child_of_node(name##_node, name##_np) { \
578 name##_info = info->name##_info + name##_i; \
580 if (name##_np == playback) \
581 dai_info->playback.name = name##_info; \
582 if (name##_np == capture) \
583 dai_info->capture.name = name##_info; \
593 for_each_child_of_node(dai_node
, dai_np
) {
594 dai_info
= info
->dai_info
+ dai_i
;
598 playback
= of_parse_phandle(dai_np
, "playback", i
);
599 capture
= of_parse_phandle(dai_np
, "capture", i
);
601 if (!playback
&& !capture
)
608 of_node_put(playback
);
609 of_node_put(capture
);
616 static int rsnd_dai_probe(struct platform_device
*pdev
,
617 const struct rsnd_of_data
*of_data
,
618 struct rsnd_priv
*priv
)
620 struct snd_soc_dai_driver
*drv
;
621 struct rcar_snd_info
*info
= rsnd_priv_to_info(priv
);
622 struct rsnd_dai
*rdai
;
623 struct rsnd_ssi_platform_info
*pmod
, *cmod
;
624 struct device
*dev
= rsnd_priv_to_dev(priv
);
628 rsnd_of_parse_dai(pdev
, of_data
, priv
);
630 dai_nr
= info
->dai_info_nr
;
632 dev_err(dev
, "no dai\n");
636 drv
= devm_kzalloc(dev
, sizeof(*drv
) * dai_nr
, GFP_KERNEL
);
637 rdai
= devm_kzalloc(dev
, sizeof(*rdai
) * dai_nr
, GFP_KERNEL
);
639 dev_err(dev
, "dai allocate failed\n");
643 priv
->rdai_nr
= dai_nr
;
647 for (i
= 0; i
< dai_nr
; i
++) {
649 pmod
= info
->dai_info
[i
].playback
.ssi
;
650 cmod
= info
->dai_info
[i
].capture
.ssi
;
655 snprintf(rdai
[i
].name
, RSND_DAI_NAME_SIZE
, "rsnd-dai.%d", i
);
659 * init snd_soc_dai_driver
661 drv
[i
].name
= rdai
[i
].name
;
662 drv
[i
].ops
= &rsnd_soc_dai_ops
;
664 snprintf(rdai
[i
].playback
.name
, RSND_DAI_NAME_SIZE
,
665 "DAI%d Playback", i
);
667 drv
[i
].playback
.rates
= RSND_RATES
;
668 drv
[i
].playback
.formats
= RSND_FMTS
;
669 drv
[i
].playback
.channels_min
= 2;
670 drv
[i
].playback
.channels_max
= 2;
671 drv
[i
].playback
.stream_name
= rdai
[i
].playback
.name
;
673 rdai
[i
].playback
.info
= &info
->dai_info
[i
].playback
;
674 rdai
[i
].playback
.rdai
= rdai
+ i
;
675 rsnd_path_init(priv
, &rdai
[i
], &rdai
[i
].playback
);
678 snprintf(rdai
[i
].capture
.name
, RSND_DAI_NAME_SIZE
,
681 drv
[i
].capture
.rates
= RSND_RATES
;
682 drv
[i
].capture
.formats
= RSND_FMTS
;
683 drv
[i
].capture
.channels_min
= 2;
684 drv
[i
].capture
.channels_max
= 2;
685 drv
[i
].capture
.stream_name
= rdai
[i
].capture
.name
;
687 rdai
[i
].capture
.info
= &info
->dai_info
[i
].capture
;
688 rdai
[i
].capture
.rdai
= rdai
+ i
;
689 rsnd_path_init(priv
, &rdai
[i
], &rdai
[i
].capture
);
692 dev_dbg(dev
, "%s (%s/%s)\n", rdai
[i
].name
,
693 pmod
? "play" : " -- ",
694 cmod
? "capture" : " -- ");
703 static struct snd_pcm_hardware rsnd_pcm_hardware
= {
704 .info
= SNDRV_PCM_INFO_INTERLEAVED
|
705 SNDRV_PCM_INFO_MMAP
|
706 SNDRV_PCM_INFO_MMAP_VALID
,
707 .buffer_bytes_max
= 64 * 1024,
708 .period_bytes_min
= 32,
709 .period_bytes_max
= 8192,
715 static int rsnd_pcm_open(struct snd_pcm_substream
*substream
)
717 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
720 snd_soc_set_runtime_hwparams(substream
, &rsnd_pcm_hardware
);
722 ret
= snd_pcm_hw_constraint_integer(runtime
,
723 SNDRV_PCM_HW_PARAM_PERIODS
);
728 static int rsnd_hw_params(struct snd_pcm_substream
*substream
,
729 struct snd_pcm_hw_params
*hw_params
)
731 struct snd_soc_dai
*dai
= rsnd_substream_to_dai(substream
);
732 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
733 struct rsnd_dai_stream
*io
= rsnd_rdai_to_io(rdai
, substream
);
736 ret
= rsnd_dai_call(hw_params
, io
, substream
, hw_params
);
740 return snd_pcm_lib_malloc_pages(substream
,
741 params_buffer_bytes(hw_params
));
744 static snd_pcm_uframes_t
rsnd_pointer(struct snd_pcm_substream
*substream
)
746 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
747 struct snd_soc_dai
*dai
= rsnd_substream_to_dai(substream
);
748 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
749 struct rsnd_dai_stream
*io
= rsnd_rdai_to_io(rdai
, substream
);
751 return bytes_to_frames(runtime
, io
->byte_pos
);
754 static struct snd_pcm_ops rsnd_pcm_ops
= {
755 .open
= rsnd_pcm_open
,
756 .ioctl
= snd_pcm_lib_ioctl
,
757 .hw_params
= rsnd_hw_params
,
758 .hw_free
= snd_pcm_lib_free_pages
,
759 .pointer
= rsnd_pointer
,
765 #define kcontrol_to_cfg(kctrl) ((struct rsnd_kctrl_cfg *)kctrl->private_value)
766 static int rsnd_kctrl_info(struct snd_kcontrol
*kctrl
,
767 struct snd_ctl_elem_info
*uinfo
)
769 struct rsnd_kctrl_cfg
*cfg
= kcontrol_to_cfg(kctrl
);
772 uinfo
->type
= SNDRV_CTL_ELEM_TYPE_ENUMERATED
;
773 uinfo
->count
= cfg
->size
;
774 uinfo
->value
.enumerated
.items
= cfg
->max
;
775 if (uinfo
->value
.enumerated
.item
>= cfg
->max
)
776 uinfo
->value
.enumerated
.item
= cfg
->max
- 1;
777 strlcpy(uinfo
->value
.enumerated
.name
,
778 cfg
->texts
[uinfo
->value
.enumerated
.item
],
779 sizeof(uinfo
->value
.enumerated
.name
));
781 uinfo
->count
= cfg
->size
;
782 uinfo
->value
.integer
.min
= 0;
783 uinfo
->value
.integer
.max
= cfg
->max
;
784 uinfo
->type
= (cfg
->max
== 1) ?
785 SNDRV_CTL_ELEM_TYPE_BOOLEAN
:
786 SNDRV_CTL_ELEM_TYPE_INTEGER
;
792 static int rsnd_kctrl_get(struct snd_kcontrol
*kctrl
,
793 struct snd_ctl_elem_value
*uc
)
795 struct rsnd_kctrl_cfg
*cfg
= kcontrol_to_cfg(kctrl
);
798 for (i
= 0; i
< cfg
->size
; i
++)
800 uc
->value
.enumerated
.item
[i
] = cfg
->val
[i
];
802 uc
->value
.integer
.value
[i
] = cfg
->val
[i
];
807 static int rsnd_kctrl_put(struct snd_kcontrol
*kctrl
,
808 struct snd_ctl_elem_value
*uc
)
810 struct rsnd_mod
*mod
= snd_kcontrol_chip(kctrl
);
811 struct rsnd_kctrl_cfg
*cfg
= kcontrol_to_cfg(kctrl
);
814 for (i
= 0; i
< cfg
->size
; i
++) {
816 change
|= (uc
->value
.enumerated
.item
[i
] != cfg
->val
[i
]);
817 cfg
->val
[i
] = uc
->value
.enumerated
.item
[i
];
819 change
|= (uc
->value
.integer
.value
[i
] != cfg
->val
[i
]);
820 cfg
->val
[i
] = uc
->value
.integer
.value
[i
];
830 static int __rsnd_kctrl_new(struct rsnd_mod
*mod
,
831 struct snd_soc_pcm_runtime
*rtd
,
832 const unsigned char *name
,
833 struct rsnd_kctrl_cfg
*cfg
,
834 void (*update
)(struct rsnd_mod
*mod
))
836 struct snd_card
*card
= rtd
->card
->snd_card
;
837 struct snd_kcontrol
*kctrl
;
838 struct snd_kcontrol_new knew
= {
839 .iface
= SNDRV_CTL_ELEM_IFACE_MIXER
,
841 .info
= rsnd_kctrl_info
,
842 .get
= rsnd_kctrl_get
,
843 .put
= rsnd_kctrl_put
,
844 .private_value
= (unsigned long)cfg
,
848 kctrl
= snd_ctl_new1(&knew
, mod
);
852 ret
= snd_ctl_add(card
, kctrl
);
854 snd_ctl_free_one(kctrl
);
858 cfg
->update
= update
;
865 void _rsnd_kctrl_remove(struct rsnd_kctrl_cfg
*cfg
)
867 snd_ctl_remove(cfg
->card
, cfg
->kctrl
);
870 int rsnd_kctrl_new_m(struct rsnd_mod
*mod
,
871 struct snd_soc_pcm_runtime
*rtd
,
872 const unsigned char *name
,
873 void (*update
)(struct rsnd_mod
*mod
),
874 struct rsnd_kctrl_cfg_m
*_cfg
,
878 _cfg
->cfg
.size
= RSND_DVC_CHANNELS
;
879 _cfg
->cfg
.val
= _cfg
->val
;
880 return __rsnd_kctrl_new(mod
, rtd
, name
, &_cfg
->cfg
, update
);
883 int rsnd_kctrl_new_s(struct rsnd_mod
*mod
,
884 struct snd_soc_pcm_runtime
*rtd
,
885 const unsigned char *name
,
886 void (*update
)(struct rsnd_mod
*mod
),
887 struct rsnd_kctrl_cfg_s
*_cfg
,
892 _cfg
->cfg
.val
= &_cfg
->val
;
893 return __rsnd_kctrl_new(mod
, rtd
, name
, &_cfg
->cfg
, update
);
896 int rsnd_kctrl_new_e(struct rsnd_mod
*mod
,
897 struct snd_soc_pcm_runtime
*rtd
,
898 const unsigned char *name
,
899 struct rsnd_kctrl_cfg_s
*_cfg
,
900 void (*update
)(struct rsnd_mod
*mod
),
901 const char * const *texts
,
906 _cfg
->cfg
.val
= &_cfg
->val
;
907 _cfg
->cfg
.texts
= texts
;
908 return __rsnd_kctrl_new(mod
, rtd
, name
, &_cfg
->cfg
, update
);
915 #define PREALLOC_BUFFER (32 * 1024)
916 #define PREALLOC_BUFFER_MAX (32 * 1024)
918 static int rsnd_pcm_new(struct snd_soc_pcm_runtime
*rtd
)
920 struct snd_soc_dai
*dai
= rtd
->cpu_dai
;
921 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
924 ret
= rsnd_dai_call(pcm_new
, &rdai
->playback
, rtd
);
928 ret
= rsnd_dai_call(pcm_new
, &rdai
->capture
, rtd
);
932 return snd_pcm_lib_preallocate_pages_for_all(
935 rtd
->card
->snd_card
->dev
,
936 PREALLOC_BUFFER
, PREALLOC_BUFFER_MAX
);
939 static struct snd_soc_platform_driver rsnd_soc_platform
= {
940 .ops
= &rsnd_pcm_ops
,
941 .pcm_new
= rsnd_pcm_new
,
944 static const struct snd_soc_component_driver rsnd_soc_component
= {
948 static int rsnd_rdai_continuance_probe(struct rsnd_priv
*priv
,
949 struct rsnd_dai_stream
*io
)
953 ret
= rsnd_dai_call(probe
, io
, priv
);
954 if (ret
== -EAGAIN
) {
956 * Fallback to PIO mode
960 * call "remove" for SSI/SRC/DVC
961 * SSI will be switch to PIO mode if it was DMA mode
964 * rsnd_ssi_fallback()
966 rsnd_dai_call(remove
, io
, priv
);
969 * remove SRC/DVC from DAI,
971 rsnd_path_break(priv
, io
, src
);
972 rsnd_path_break(priv
, io
, dvc
);
977 rsnd_dai_call(fallback
, io
, priv
);
981 * DAI has SSI which is PIO mode only now.
983 ret
= rsnd_dai_call(probe
, io
, priv
);
992 static int rsnd_probe(struct platform_device
*pdev
)
994 struct rcar_snd_info
*info
;
995 struct rsnd_priv
*priv
;
996 struct device
*dev
= &pdev
->dev
;
997 struct rsnd_dai
*rdai
;
998 const struct of_device_id
*of_id
= of_match_device(rsnd_of_match
, dev
);
999 const struct rsnd_of_data
*of_data
;
1000 int (*probe_func
[])(struct platform_device
*pdev
,
1001 const struct rsnd_of_data
*of_data
,
1002 struct rsnd_priv
*priv
) = {
1016 info
= devm_kzalloc(&pdev
->dev
,
1017 sizeof(struct rcar_snd_info
), GFP_KERNEL
);
1018 of_data
= of_id
->data
;
1020 info
= pdev
->dev
.platform_data
;
1024 dev_err(dev
, "driver needs R-Car sound information\n");
1031 priv
= devm_kzalloc(dev
, sizeof(*priv
), GFP_KERNEL
);
1033 dev_err(dev
, "priv allocate failed\n");
1039 spin_lock_init(&priv
->lock
);
1044 for (i
= 0; i
< ARRAY_SIZE(probe_func
); i
++) {
1045 ret
= probe_func
[i
](pdev
, of_data
, priv
);
1050 for_each_rsnd_dai(rdai
, priv
, i
) {
1051 ret
= rsnd_rdai_continuance_probe(priv
, &rdai
->playback
);
1053 goto exit_snd_probe
;
1055 ret
= rsnd_rdai_continuance_probe(priv
, &rdai
->capture
);
1057 goto exit_snd_probe
;
1060 dev_set_drvdata(dev
, priv
);
1065 ret
= snd_soc_register_platform(dev
, &rsnd_soc_platform
);
1067 dev_err(dev
, "cannot snd soc register\n");
1071 ret
= snd_soc_register_component(dev
, &rsnd_soc_component
,
1072 priv
->daidrv
, rsnd_rdai_nr(priv
));
1074 dev_err(dev
, "cannot snd dai register\n");
1078 pm_runtime_enable(dev
);
1080 dev_info(dev
, "probed\n");
1084 snd_soc_unregister_platform(dev
);
1086 for_each_rsnd_dai(rdai
, priv
, i
) {
1087 rsnd_dai_call(remove
, &rdai
->playback
, priv
);
1088 rsnd_dai_call(remove
, &rdai
->capture
, priv
);
1094 static int rsnd_remove(struct platform_device
*pdev
)
1096 struct rsnd_priv
*priv
= dev_get_drvdata(&pdev
->dev
);
1097 struct rsnd_dai
*rdai
;
1098 void (*remove_func
[])(struct platform_device
*pdev
,
1099 struct rsnd_priv
*priv
) = {
1106 pm_runtime_disable(&pdev
->dev
);
1108 for_each_rsnd_dai(rdai
, priv
, i
) {
1109 ret
|= rsnd_dai_call(remove
, &rdai
->playback
, priv
);
1110 ret
|= rsnd_dai_call(remove
, &rdai
->capture
, priv
);
1113 for (i
= 0; i
< ARRAY_SIZE(remove_func
); i
++)
1114 remove_func
[i
](pdev
, priv
);
1116 snd_soc_unregister_component(&pdev
->dev
);
1117 snd_soc_unregister_platform(&pdev
->dev
);
1122 static struct platform_driver rsnd_driver
= {
1124 .name
= "rcar_sound",
1125 .of_match_table
= rsnd_of_match
,
1127 .probe
= rsnd_probe
,
1128 .remove
= rsnd_remove
,
1130 module_platform_driver(rsnd_driver
);
1132 MODULE_LICENSE("GPL");
1133 MODULE_DESCRIPTION("Renesas R-Car audio driver");
1134 MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
1135 MODULE_ALIAS("platform:rcar-pcm-audio");