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_priv
*priv
,
149 struct rsnd_mod
*mod
,
150 struct rsnd_mod_ops
*ops
,
152 enum rsnd_mod_type type
,
155 int ret
= clk_prepare(clk
);
169 void rsnd_mod_quit(struct rsnd_mod
*mod
)
172 clk_unprepare(mod
->clk
);
175 int rsnd_mod_is_working(struct rsnd_mod
*mod
)
177 struct rsnd_dai_stream
*io
= rsnd_mod_to_io(mod
);
179 /* see rsnd_dai_stream_init/quit() */
180 return !!io
->substream
;
186 u32
rsnd_get_adinr(struct rsnd_mod
*mod
)
188 struct rsnd_priv
*priv
= rsnd_mod_to_priv(mod
);
189 struct rsnd_dai_stream
*io
= rsnd_mod_to_io(mod
);
190 struct snd_pcm_runtime
*runtime
= rsnd_io_to_runtime(io
);
191 struct device
*dev
= rsnd_priv_to_dev(priv
);
192 u32 adinr
= runtime
->channels
;
194 switch (runtime
->sample_bits
) {
202 dev_warn(dev
, "not supported sample bits\n");
212 #define __rsnd_mod_call(mod, io, func, param...) \
214 struct rsnd_priv *priv = rsnd_mod_to_priv(mod); \
215 struct device *dev = rsnd_priv_to_dev(priv); \
216 u32 mask = 0xF << __rsnd_mod_shift_##func; \
217 u8 val = (mod->status >> __rsnd_mod_shift_##func) & 0xF; \
218 u8 add = ((val + __rsnd_mod_add_##func) & 0xF); \
221 if (val == __rsnd_mod_call_##func) { \
223 ret = (mod)->ops->func(mod, io, param); \
224 mod->status = (mod->status & ~mask) + \
225 (add << __rsnd_mod_shift_##func); \
227 dev_dbg(dev, "%s[%d] 0x%08x %s\n", \
228 rsnd_mod_name(mod), rsnd_mod_id(mod), mod->status, \
229 called ? #func : ""); \
233 #define rsnd_mod_call(mod, io, func, param...) \
234 (!(mod) ? -ENODEV : \
235 !((mod)->ops->func) ? 0 : \
236 __rsnd_mod_call(mod, io, func, param))
238 #define rsnd_dai_call(fn, io, param...) \
240 struct rsnd_mod *mod; \
242 for (i = 0; i < RSND_MOD_MAX; i++) { \
243 mod = (io)->mod[i]; \
246 ret = rsnd_mod_call(mod, io, fn, param); \
253 static int rsnd_dai_connect(struct rsnd_mod
*mod
,
254 struct rsnd_dai_stream
*io
)
259 if (io
->mod
[mod
->type
]) {
260 struct rsnd_priv
*priv
= rsnd_mod_to_priv(mod
);
261 struct device
*dev
= rsnd_priv_to_dev(priv
);
263 dev_err(dev
, "%s[%d] is not empty\n",
269 io
->mod
[mod
->type
] = mod
;
275 static void rsnd_dai_disconnect(struct rsnd_mod
*mod
,
276 struct rsnd_dai_stream
*io
)
279 io
->mod
[mod
->type
] = NULL
;
282 struct rsnd_dai
*rsnd_rdai_get(struct rsnd_priv
*priv
, int id
)
284 if ((id
< 0) || (id
>= rsnd_rdai_nr(priv
)))
287 return priv
->rdai
+ id
;
290 #define rsnd_dai_to_priv(dai) snd_soc_dai_get_drvdata(dai)
291 static struct rsnd_dai
*rsnd_dai_to_rdai(struct snd_soc_dai
*dai
)
293 struct rsnd_priv
*priv
= rsnd_dai_to_priv(dai
);
295 return rsnd_rdai_get(priv
, dai
->id
);
299 * rsnd_soc_dai functions
301 int rsnd_dai_pointer_offset(struct rsnd_dai_stream
*io
, int additional
)
303 struct snd_pcm_substream
*substream
= io
->substream
;
304 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
305 int pos
= io
->byte_pos
+ additional
;
307 pos
%= (runtime
->periods
* io
->byte_per_period
);
312 bool rsnd_dai_pointer_update(struct rsnd_dai_stream
*io
, int byte
)
314 io
->byte_pos
+= byte
;
316 if (io
->byte_pos
>= io
->next_period_byte
) {
317 struct snd_pcm_substream
*substream
= io
->substream
;
318 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
321 io
->next_period_byte
+= io
->byte_per_period
;
323 if (io
->period_pos
>= runtime
->periods
) {
326 io
->next_period_byte
= io
->byte_per_period
;
335 void rsnd_dai_period_elapsed(struct rsnd_dai_stream
*io
)
337 struct snd_pcm_substream
*substream
= io
->substream
;
340 * this function should be called...
342 * - if rsnd_dai_pointer_update() returns true
343 * - without spin lock
346 snd_pcm_period_elapsed(substream
);
349 static void rsnd_dai_stream_init(struct rsnd_dai_stream
*io
,
350 struct snd_pcm_substream
*substream
)
352 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
354 io
->substream
= substream
;
357 io
->byte_per_period
= runtime
->period_size
*
359 samples_to_bytes(runtime
, 1);
360 io
->next_period_byte
= io
->byte_per_period
;
363 static void rsnd_dai_stream_quit(struct rsnd_dai_stream
*io
)
365 io
->substream
= NULL
;
369 struct snd_soc_dai
*rsnd_substream_to_dai(struct snd_pcm_substream
*substream
)
371 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
377 struct rsnd_dai_stream
*rsnd_rdai_to_io(struct rsnd_dai
*rdai
,
378 struct snd_pcm_substream
*substream
)
380 if (substream
->stream
== SNDRV_PCM_STREAM_PLAYBACK
)
381 return &rdai
->playback
;
383 return &rdai
->capture
;
386 static int rsnd_soc_dai_trigger(struct snd_pcm_substream
*substream
, int cmd
,
387 struct snd_soc_dai
*dai
)
389 struct rsnd_priv
*priv
= rsnd_dai_to_priv(dai
);
390 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
391 struct rsnd_dai_stream
*io
= rsnd_rdai_to_io(rdai
, substream
);
392 int ssi_id
= rsnd_mod_id(rsnd_io_to_mod_ssi(io
));
396 spin_lock_irqsave(&priv
->lock
, flags
);
399 case SNDRV_PCM_TRIGGER_START
:
400 rsnd_dai_stream_init(io
, substream
);
402 ret
= rsnd_platform_call(priv
, dai
, start
, ssi_id
);
404 goto dai_trigger_end
;
406 ret
= rsnd_dai_call(init
, io
, priv
);
408 goto dai_trigger_end
;
410 ret
= rsnd_dai_call(start
, io
, priv
);
412 goto dai_trigger_end
;
414 case SNDRV_PCM_TRIGGER_STOP
:
415 ret
= rsnd_dai_call(stop
, io
, priv
);
417 goto dai_trigger_end
;
419 ret
= rsnd_dai_call(quit
, io
, priv
);
421 goto dai_trigger_end
;
423 ret
= rsnd_platform_call(priv
, dai
, stop
, ssi_id
);
425 goto dai_trigger_end
;
427 rsnd_dai_stream_quit(io
);
434 spin_unlock_irqrestore(&priv
->lock
, flags
);
439 static int rsnd_soc_dai_set_fmt(struct snd_soc_dai
*dai
, unsigned int fmt
)
441 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
443 /* set master/slave audio interface */
444 switch (fmt
& SND_SOC_DAIFMT_MASTER_MASK
) {
445 case SND_SOC_DAIFMT_CBM_CFM
:
446 rdai
->clk_master
= 0;
448 case SND_SOC_DAIFMT_CBS_CFS
:
449 rdai
->clk_master
= 1; /* codec is slave, cpu is master */
456 switch (fmt
& SND_SOC_DAIFMT_FORMAT_MASK
) {
457 case SND_SOC_DAIFMT_I2S
:
459 rdai
->data_alignment
= 0;
460 rdai
->frm_clk_inv
= 0;
462 case SND_SOC_DAIFMT_LEFT_J
:
464 rdai
->data_alignment
= 0;
465 rdai
->frm_clk_inv
= 1;
467 case SND_SOC_DAIFMT_RIGHT_J
:
469 rdai
->data_alignment
= 1;
470 rdai
->frm_clk_inv
= 1;
474 /* set clock inversion */
475 switch (fmt
& SND_SOC_DAIFMT_INV_MASK
) {
476 case SND_SOC_DAIFMT_NB_IF
:
477 rdai
->bit_clk_inv
= rdai
->bit_clk_inv
;
478 rdai
->frm_clk_inv
= !rdai
->frm_clk_inv
;
480 case SND_SOC_DAIFMT_IB_NF
:
481 rdai
->bit_clk_inv
= !rdai
->bit_clk_inv
;
482 rdai
->frm_clk_inv
= rdai
->frm_clk_inv
;
484 case SND_SOC_DAIFMT_IB_IF
:
485 rdai
->bit_clk_inv
= !rdai
->bit_clk_inv
;
486 rdai
->frm_clk_inv
= !rdai
->frm_clk_inv
;
488 case SND_SOC_DAIFMT_NB_NF
:
496 static const struct snd_soc_dai_ops rsnd_soc_dai_ops
= {
497 .trigger
= rsnd_soc_dai_trigger
,
498 .set_fmt
= rsnd_soc_dai_set_fmt
,
501 #define rsnd_path_parse(priv, io, type) \
503 struct rsnd_mod *mod; \
507 if (rsnd_is_enable_path(io, type)) { \
508 id = rsnd_info_id(priv, io, type); \
510 mod = rsnd_##type##_mod_get(priv, id); \
511 ret = rsnd_dai_connect(mod, io); \
517 #define rsnd_path_break(priv, io, type) \
519 struct rsnd_mod *mod; \
522 if (rsnd_is_enable_path(io, type)) { \
523 id = rsnd_info_id(priv, io, type); \
525 mod = rsnd_##type##_mod_get(priv, id); \
526 rsnd_dai_disconnect(mod, io); \
531 static int rsnd_path_init(struct rsnd_priv
*priv
,
532 struct rsnd_dai
*rdai
,
533 struct rsnd_dai_stream
*io
)
538 * Gen1 is created by SRU/SSI, and this SRU is base module of
539 * Gen2's SCU/SSIU/SSI. (Gen2 SCU/SSIU came from SRU)
542 * Gen1 SRU = Gen2 SCU + SSIU + etc
544 * Gen2 SCU path is very flexible, but, Gen1 SRU (SCU parts) is
549 ret
= rsnd_path_parse(priv
, io
, src
);
554 ret
= rsnd_path_parse(priv
, io
, ssi
);
559 ret
= rsnd_path_parse(priv
, io
, dvc
);
566 static void rsnd_of_parse_dai(struct platform_device
*pdev
,
567 const struct rsnd_of_data
*of_data
,
568 struct rsnd_priv
*priv
)
570 struct device_node
*dai_node
, *dai_np
;
571 struct device_node
*ssi_node
, *ssi_np
;
572 struct device_node
*src_node
, *src_np
;
573 struct device_node
*dvc_node
, *dvc_np
;
574 struct device_node
*playback
, *capture
;
575 struct rsnd_dai_platform_info
*dai_info
;
576 struct rcar_snd_info
*info
= rsnd_priv_to_info(priv
);
577 struct device
*dev
= &pdev
->dev
;
579 int dai_i
, ssi_i
, src_i
, dvc_i
;
584 dai_node
= of_get_child_by_name(dev
->of_node
, "rcar_sound,dai");
588 nr
= of_get_child_count(dai_node
);
592 dai_info
= devm_kzalloc(dev
,
593 sizeof(struct rsnd_dai_platform_info
) * nr
,
596 dev_err(dev
, "dai info allocation error\n");
600 info
->dai_info_nr
= nr
;
601 info
->dai_info
= dai_info
;
603 ssi_node
= of_get_child_by_name(dev
->of_node
, "rcar_sound,ssi");
604 src_node
= of_get_child_by_name(dev
->of_node
, "rcar_sound,src");
605 dvc_node
= of_get_child_by_name(dev
->of_node
, "rcar_sound,dvc");
607 #define mod_parse(name) \
609 struct rsnd_##name##_platform_info *name##_info; \
612 for_each_child_of_node(name##_node, name##_np) { \
613 name##_info = info->name##_info + name##_i; \
615 if (name##_np == playback) \
616 dai_info->playback.name = name##_info; \
617 if (name##_np == capture) \
618 dai_info->capture.name = name##_info; \
628 for_each_child_of_node(dai_node
, dai_np
) {
629 dai_info
= info
->dai_info
+ dai_i
;
633 playback
= of_parse_phandle(dai_np
, "playback", i
);
634 capture
= of_parse_phandle(dai_np
, "capture", i
);
636 if (!playback
&& !capture
)
643 of_node_put(playback
);
644 of_node_put(capture
);
651 static int rsnd_dai_probe(struct platform_device
*pdev
,
652 const struct rsnd_of_data
*of_data
,
653 struct rsnd_priv
*priv
)
655 struct snd_soc_dai_driver
*drv
;
656 struct rcar_snd_info
*info
= rsnd_priv_to_info(priv
);
657 struct rsnd_dai
*rdai
;
658 struct rsnd_ssi_platform_info
*pmod
, *cmod
;
659 struct device
*dev
= rsnd_priv_to_dev(priv
);
663 rsnd_of_parse_dai(pdev
, of_data
, priv
);
665 dai_nr
= info
->dai_info_nr
;
667 dev_err(dev
, "no dai\n");
671 drv
= devm_kzalloc(dev
, sizeof(*drv
) * dai_nr
, GFP_KERNEL
);
672 rdai
= devm_kzalloc(dev
, sizeof(*rdai
) * dai_nr
, GFP_KERNEL
);
674 dev_err(dev
, "dai allocate failed\n");
678 priv
->rdai_nr
= dai_nr
;
682 for (i
= 0; i
< dai_nr
; i
++) {
684 pmod
= info
->dai_info
[i
].playback
.ssi
;
685 cmod
= info
->dai_info
[i
].capture
.ssi
;
690 snprintf(rdai
[i
].name
, RSND_DAI_NAME_SIZE
, "rsnd-dai.%d", i
);
694 * init snd_soc_dai_driver
696 drv
[i
].name
= rdai
[i
].name
;
697 drv
[i
].ops
= &rsnd_soc_dai_ops
;
699 snprintf(rdai
[i
].playback
.name
, RSND_DAI_NAME_SIZE
,
700 "DAI%d Playback", i
);
702 drv
[i
].playback
.rates
= RSND_RATES
;
703 drv
[i
].playback
.formats
= RSND_FMTS
;
704 drv
[i
].playback
.channels_min
= 2;
705 drv
[i
].playback
.channels_max
= 2;
706 drv
[i
].playback
.stream_name
= rdai
[i
].playback
.name
;
708 rdai
[i
].playback
.info
= &info
->dai_info
[i
].playback
;
709 rdai
[i
].playback
.rdai
= rdai
+ i
;
710 rsnd_path_init(priv
, &rdai
[i
], &rdai
[i
].playback
);
713 snprintf(rdai
[i
].capture
.name
, RSND_DAI_NAME_SIZE
,
716 drv
[i
].capture
.rates
= RSND_RATES
;
717 drv
[i
].capture
.formats
= RSND_FMTS
;
718 drv
[i
].capture
.channels_min
= 2;
719 drv
[i
].capture
.channels_max
= 2;
720 drv
[i
].capture
.stream_name
= rdai
[i
].capture
.name
;
722 rdai
[i
].capture
.info
= &info
->dai_info
[i
].capture
;
723 rdai
[i
].capture
.rdai
= rdai
+ i
;
724 rsnd_path_init(priv
, &rdai
[i
], &rdai
[i
].capture
);
727 dev_dbg(dev
, "%s (%s/%s)\n", rdai
[i
].name
,
728 pmod
? "play" : " -- ",
729 cmod
? "capture" : " -- ");
738 static struct snd_pcm_hardware rsnd_pcm_hardware
= {
739 .info
= SNDRV_PCM_INFO_INTERLEAVED
|
740 SNDRV_PCM_INFO_MMAP
|
741 SNDRV_PCM_INFO_MMAP_VALID
,
742 .buffer_bytes_max
= 64 * 1024,
743 .period_bytes_min
= 32,
744 .period_bytes_max
= 8192,
750 static int rsnd_pcm_open(struct snd_pcm_substream
*substream
)
752 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
755 snd_soc_set_runtime_hwparams(substream
, &rsnd_pcm_hardware
);
757 ret
= snd_pcm_hw_constraint_integer(runtime
,
758 SNDRV_PCM_HW_PARAM_PERIODS
);
763 static int rsnd_hw_params(struct snd_pcm_substream
*substream
,
764 struct snd_pcm_hw_params
*hw_params
)
766 struct snd_soc_dai
*dai
= rsnd_substream_to_dai(substream
);
767 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
768 struct rsnd_dai_stream
*io
= rsnd_rdai_to_io(rdai
, substream
);
771 ret
= rsnd_dai_call(hw_params
, io
, substream
, hw_params
);
775 return snd_pcm_lib_malloc_pages(substream
,
776 params_buffer_bytes(hw_params
));
779 static snd_pcm_uframes_t
rsnd_pointer(struct snd_pcm_substream
*substream
)
781 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
782 struct snd_soc_dai
*dai
= rsnd_substream_to_dai(substream
);
783 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
784 struct rsnd_dai_stream
*io
= rsnd_rdai_to_io(rdai
, substream
);
786 return bytes_to_frames(runtime
, io
->byte_pos
);
789 static struct snd_pcm_ops rsnd_pcm_ops
= {
790 .open
= rsnd_pcm_open
,
791 .ioctl
= snd_pcm_lib_ioctl
,
792 .hw_params
= rsnd_hw_params
,
793 .hw_free
= snd_pcm_lib_free_pages
,
794 .pointer
= rsnd_pointer
,
800 #define kcontrol_to_cfg(kctrl) ((struct rsnd_kctrl_cfg *)kctrl->private_value)
801 static int rsnd_kctrl_info(struct snd_kcontrol
*kctrl
,
802 struct snd_ctl_elem_info
*uinfo
)
804 struct rsnd_kctrl_cfg
*cfg
= kcontrol_to_cfg(kctrl
);
807 uinfo
->type
= SNDRV_CTL_ELEM_TYPE_ENUMERATED
;
808 uinfo
->count
= cfg
->size
;
809 uinfo
->value
.enumerated
.items
= cfg
->max
;
810 if (uinfo
->value
.enumerated
.item
>= cfg
->max
)
811 uinfo
->value
.enumerated
.item
= cfg
->max
- 1;
812 strlcpy(uinfo
->value
.enumerated
.name
,
813 cfg
->texts
[uinfo
->value
.enumerated
.item
],
814 sizeof(uinfo
->value
.enumerated
.name
));
816 uinfo
->count
= cfg
->size
;
817 uinfo
->value
.integer
.min
= 0;
818 uinfo
->value
.integer
.max
= cfg
->max
;
819 uinfo
->type
= (cfg
->max
== 1) ?
820 SNDRV_CTL_ELEM_TYPE_BOOLEAN
:
821 SNDRV_CTL_ELEM_TYPE_INTEGER
;
827 static int rsnd_kctrl_get(struct snd_kcontrol
*kctrl
,
828 struct snd_ctl_elem_value
*uc
)
830 struct rsnd_kctrl_cfg
*cfg
= kcontrol_to_cfg(kctrl
);
833 for (i
= 0; i
< cfg
->size
; i
++)
835 uc
->value
.enumerated
.item
[i
] = cfg
->val
[i
];
837 uc
->value
.integer
.value
[i
] = cfg
->val
[i
];
842 static int rsnd_kctrl_put(struct snd_kcontrol
*kctrl
,
843 struct snd_ctl_elem_value
*uc
)
845 struct rsnd_mod
*mod
= snd_kcontrol_chip(kctrl
);
846 struct rsnd_kctrl_cfg
*cfg
= kcontrol_to_cfg(kctrl
);
849 for (i
= 0; i
< cfg
->size
; i
++) {
851 change
|= (uc
->value
.enumerated
.item
[i
] != cfg
->val
[i
]);
852 cfg
->val
[i
] = uc
->value
.enumerated
.item
[i
];
854 change
|= (uc
->value
.integer
.value
[i
] != cfg
->val
[i
]);
855 cfg
->val
[i
] = uc
->value
.integer
.value
[i
];
865 static int __rsnd_kctrl_new(struct rsnd_mod
*mod
,
866 struct snd_soc_pcm_runtime
*rtd
,
867 const unsigned char *name
,
868 struct rsnd_kctrl_cfg
*cfg
,
869 void (*update
)(struct rsnd_mod
*mod
))
871 struct snd_soc_card
*soc_card
= rtd
->card
;
872 struct snd_card
*card
= rtd
->card
->snd_card
;
873 struct snd_kcontrol
*kctrl
;
874 struct snd_kcontrol_new knew
= {
875 .iface
= SNDRV_CTL_ELEM_IFACE_MIXER
,
877 .info
= rsnd_kctrl_info
,
878 .index
= rtd
- soc_card
->rtd
,
879 .get
= rsnd_kctrl_get
,
880 .put
= rsnd_kctrl_put
,
881 .private_value
= (unsigned long)cfg
,
885 kctrl
= snd_ctl_new1(&knew
, mod
);
889 ret
= snd_ctl_add(card
, kctrl
);
891 snd_ctl_free_one(kctrl
);
895 cfg
->update
= update
;
902 void _rsnd_kctrl_remove(struct rsnd_kctrl_cfg
*cfg
)
904 snd_ctl_remove(cfg
->card
, cfg
->kctrl
);
907 int rsnd_kctrl_new_m(struct rsnd_mod
*mod
,
908 struct snd_soc_pcm_runtime
*rtd
,
909 const unsigned char *name
,
910 void (*update
)(struct rsnd_mod
*mod
),
911 struct rsnd_kctrl_cfg_m
*_cfg
,
915 _cfg
->cfg
.size
= RSND_DVC_CHANNELS
;
916 _cfg
->cfg
.val
= _cfg
->val
;
917 return __rsnd_kctrl_new(mod
, rtd
, name
, &_cfg
->cfg
, update
);
920 int rsnd_kctrl_new_s(struct rsnd_mod
*mod
,
921 struct snd_soc_pcm_runtime
*rtd
,
922 const unsigned char *name
,
923 void (*update
)(struct rsnd_mod
*mod
),
924 struct rsnd_kctrl_cfg_s
*_cfg
,
929 _cfg
->cfg
.val
= &_cfg
->val
;
930 return __rsnd_kctrl_new(mod
, rtd
, name
, &_cfg
->cfg
, update
);
933 int rsnd_kctrl_new_e(struct rsnd_mod
*mod
,
934 struct snd_soc_pcm_runtime
*rtd
,
935 const unsigned char *name
,
936 struct rsnd_kctrl_cfg_s
*_cfg
,
937 void (*update
)(struct rsnd_mod
*mod
),
938 const char * const *texts
,
943 _cfg
->cfg
.val
= &_cfg
->val
;
944 _cfg
->cfg
.texts
= texts
;
945 return __rsnd_kctrl_new(mod
, rtd
, name
, &_cfg
->cfg
, update
);
952 #define PREALLOC_BUFFER (32 * 1024)
953 #define PREALLOC_BUFFER_MAX (32 * 1024)
955 static int rsnd_pcm_new(struct snd_soc_pcm_runtime
*rtd
)
957 struct snd_soc_dai
*dai
= rtd
->cpu_dai
;
958 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
961 ret
= rsnd_dai_call(pcm_new
, &rdai
->playback
, rtd
);
965 ret
= rsnd_dai_call(pcm_new
, &rdai
->capture
, rtd
);
969 return snd_pcm_lib_preallocate_pages_for_all(
972 rtd
->card
->snd_card
->dev
,
973 PREALLOC_BUFFER
, PREALLOC_BUFFER_MAX
);
976 static struct snd_soc_platform_driver rsnd_soc_platform
= {
977 .ops
= &rsnd_pcm_ops
,
978 .pcm_new
= rsnd_pcm_new
,
981 static const struct snd_soc_component_driver rsnd_soc_component
= {
985 static int rsnd_rdai_continuance_probe(struct rsnd_priv
*priv
,
986 struct rsnd_dai_stream
*io
)
990 ret
= rsnd_dai_call(probe
, io
, priv
);
991 if (ret
== -EAGAIN
) {
993 * Fallback to PIO mode
997 * call "remove" for SSI/SRC/DVC
998 * SSI will be switch to PIO mode if it was DMA mode
1001 * rsnd_ssi_fallback()
1003 rsnd_dai_call(remove
, io
, priv
);
1006 * remove SRC/DVC from DAI,
1008 rsnd_path_break(priv
, io
, src
);
1009 rsnd_path_break(priv
, io
, dvc
);
1014 rsnd_dai_call(fallback
, io
, priv
);
1018 * DAI has SSI which is PIO mode only now.
1020 ret
= rsnd_dai_call(probe
, io
, priv
);
1029 static int rsnd_probe(struct platform_device
*pdev
)
1031 struct rcar_snd_info
*info
;
1032 struct rsnd_priv
*priv
;
1033 struct device
*dev
= &pdev
->dev
;
1034 struct rsnd_dai
*rdai
;
1035 const struct of_device_id
*of_id
= of_match_device(rsnd_of_match
, dev
);
1036 const struct rsnd_of_data
*of_data
;
1037 int (*probe_func
[])(struct platform_device
*pdev
,
1038 const struct rsnd_of_data
*of_data
,
1039 struct rsnd_priv
*priv
) = {
1053 info
= devm_kzalloc(&pdev
->dev
,
1054 sizeof(struct rcar_snd_info
), GFP_KERNEL
);
1055 of_data
= of_id
->data
;
1057 info
= pdev
->dev
.platform_data
;
1061 dev_err(dev
, "driver needs R-Car sound information\n");
1068 priv
= devm_kzalloc(dev
, sizeof(*priv
), GFP_KERNEL
);
1070 dev_err(dev
, "priv allocate failed\n");
1076 spin_lock_init(&priv
->lock
);
1081 for (i
= 0; i
< ARRAY_SIZE(probe_func
); i
++) {
1082 ret
= probe_func
[i
](pdev
, of_data
, priv
);
1087 for_each_rsnd_dai(rdai
, priv
, i
) {
1088 ret
= rsnd_rdai_continuance_probe(priv
, &rdai
->playback
);
1090 goto exit_snd_probe
;
1092 ret
= rsnd_rdai_continuance_probe(priv
, &rdai
->capture
);
1094 goto exit_snd_probe
;
1097 dev_set_drvdata(dev
, priv
);
1102 ret
= snd_soc_register_platform(dev
, &rsnd_soc_platform
);
1104 dev_err(dev
, "cannot snd soc register\n");
1108 ret
= snd_soc_register_component(dev
, &rsnd_soc_component
,
1109 priv
->daidrv
, rsnd_rdai_nr(priv
));
1111 dev_err(dev
, "cannot snd dai register\n");
1115 pm_runtime_enable(dev
);
1117 dev_info(dev
, "probed\n");
1121 snd_soc_unregister_platform(dev
);
1123 for_each_rsnd_dai(rdai
, priv
, i
) {
1124 rsnd_dai_call(remove
, &rdai
->playback
, priv
);
1125 rsnd_dai_call(remove
, &rdai
->capture
, priv
);
1131 static int rsnd_remove(struct platform_device
*pdev
)
1133 struct rsnd_priv
*priv
= dev_get_drvdata(&pdev
->dev
);
1134 struct rsnd_dai
*rdai
;
1135 void (*remove_func
[])(struct platform_device
*pdev
,
1136 struct rsnd_priv
*priv
) = {
1143 pm_runtime_disable(&pdev
->dev
);
1145 for_each_rsnd_dai(rdai
, priv
, i
) {
1146 ret
|= rsnd_dai_call(remove
, &rdai
->playback
, priv
);
1147 ret
|= rsnd_dai_call(remove
, &rdai
->capture
, priv
);
1150 for (i
= 0; i
< ARRAY_SIZE(remove_func
); i
++)
1151 remove_func
[i
](pdev
, priv
);
1153 snd_soc_unregister_component(&pdev
->dev
);
1154 snd_soc_unregister_platform(&pdev
->dev
);
1159 static struct platform_driver rsnd_driver
= {
1161 .name
= "rcar_sound",
1162 .of_match_table
= rsnd_of_match
,
1164 .probe
= rsnd_probe
,
1165 .remove
= rsnd_remove
,
1167 module_platform_driver(rsnd_driver
);
1169 MODULE_LICENSE("GPL");
1170 MODULE_DESCRIPTION("Renesas R-Car audio driver");
1171 MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
1172 MODULE_ALIAS("platform:rcar-pcm-audio");