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(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");
233 #define __rsnd_mod_call(mod, io, func, param...) \
235 struct rsnd_priv *priv = rsnd_mod_to_priv(mod); \
236 struct device *dev = rsnd_priv_to_dev(priv); \
237 u32 mask = 0xF << __rsnd_mod_shift_##func; \
238 u8 val = (mod->status >> __rsnd_mod_shift_##func) & 0xF; \
239 u8 add = ((val + __rsnd_mod_add_##func) & 0xF); \
242 if (val == __rsnd_mod_call_##func) { \
244 ret = (mod)->ops->func(mod, io, param); \
245 mod->status = (mod->status & ~mask) + \
246 (add << __rsnd_mod_shift_##func); \
248 dev_dbg(dev, "%s[%d] 0x%08x %s\n", \
249 rsnd_mod_name(mod), rsnd_mod_id(mod), mod->status, \
250 called ? #func : ""); \
254 #define rsnd_mod_call(mod, io, func, param...) \
255 (!(mod) ? -ENODEV : \
256 !((mod)->ops->func) ? 0 : \
257 __rsnd_mod_call(mod, io, func, param))
259 #define rsnd_dai_call(fn, io, param...) \
261 struct rsnd_mod *mod; \
263 for (i = 0; i < RSND_MOD_MAX; i++) { \
264 mod = (io)->mod[i]; \
267 ret = rsnd_mod_call(mod, io, fn, param); \
274 static int rsnd_dai_connect(struct rsnd_mod
*mod
,
275 struct rsnd_dai_stream
*io
)
280 if (io
->mod
[mod
->type
]) {
281 struct rsnd_priv
*priv
= rsnd_mod_to_priv(mod
);
282 struct device
*dev
= rsnd_priv_to_dev(priv
);
284 dev_err(dev
, "%s[%d] is not empty\n",
290 io
->mod
[mod
->type
] = mod
;
295 static void rsnd_dai_disconnect(struct rsnd_mod
*mod
,
296 struct rsnd_dai_stream
*io
)
298 io
->mod
[mod
->type
] = NULL
;
301 struct rsnd_dai
*rsnd_rdai_get(struct rsnd_priv
*priv
, int id
)
303 if ((id
< 0) || (id
>= rsnd_rdai_nr(priv
)))
306 return priv
->rdai
+ id
;
309 #define rsnd_dai_to_priv(dai) snd_soc_dai_get_drvdata(dai)
310 static struct rsnd_dai
*rsnd_dai_to_rdai(struct snd_soc_dai
*dai
)
312 struct rsnd_priv
*priv
= rsnd_dai_to_priv(dai
);
314 return rsnd_rdai_get(priv
, dai
->id
);
318 * rsnd_soc_dai functions
320 int rsnd_dai_pointer_offset(struct rsnd_dai_stream
*io
, int additional
)
322 struct snd_pcm_substream
*substream
= io
->substream
;
323 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
324 int pos
= io
->byte_pos
+ additional
;
326 pos
%= (runtime
->periods
* io
->byte_per_period
);
331 bool rsnd_dai_pointer_update(struct rsnd_dai_stream
*io
, int byte
)
333 io
->byte_pos
+= byte
;
335 if (io
->byte_pos
>= io
->next_period_byte
) {
336 struct snd_pcm_substream
*substream
= io
->substream
;
337 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
340 io
->next_period_byte
+= io
->byte_per_period
;
342 if (io
->period_pos
>= runtime
->periods
) {
345 io
->next_period_byte
= io
->byte_per_period
;
354 void rsnd_dai_period_elapsed(struct rsnd_dai_stream
*io
)
356 struct snd_pcm_substream
*substream
= io
->substream
;
359 * this function should be called...
361 * - if rsnd_dai_pointer_update() returns true
362 * - without spin lock
365 snd_pcm_period_elapsed(substream
);
368 static void rsnd_dai_stream_init(struct rsnd_dai_stream
*io
,
369 struct snd_pcm_substream
*substream
)
371 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
373 io
->substream
= substream
;
376 io
->byte_per_period
= runtime
->period_size
*
378 samples_to_bytes(runtime
, 1);
379 io
->next_period_byte
= io
->byte_per_period
;
382 static void rsnd_dai_stream_quit(struct rsnd_dai_stream
*io
)
384 io
->substream
= NULL
;
388 struct snd_soc_dai
*rsnd_substream_to_dai(struct snd_pcm_substream
*substream
)
390 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
396 struct rsnd_dai_stream
*rsnd_rdai_to_io(struct rsnd_dai
*rdai
,
397 struct snd_pcm_substream
*substream
)
399 if (substream
->stream
== SNDRV_PCM_STREAM_PLAYBACK
)
400 return &rdai
->playback
;
402 return &rdai
->capture
;
405 static int rsnd_soc_dai_trigger(struct snd_pcm_substream
*substream
, int cmd
,
406 struct snd_soc_dai
*dai
)
408 struct rsnd_priv
*priv
= rsnd_dai_to_priv(dai
);
409 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
410 struct rsnd_dai_stream
*io
= rsnd_rdai_to_io(rdai
, substream
);
411 int ssi_id
= rsnd_mod_id(rsnd_io_to_mod_ssi(io
));
415 spin_lock_irqsave(&priv
->lock
, flags
);
418 case SNDRV_PCM_TRIGGER_START
:
419 rsnd_dai_stream_init(io
, substream
);
421 ret
= rsnd_platform_call(priv
, dai
, start
, ssi_id
);
423 goto dai_trigger_end
;
425 ret
= rsnd_dai_call(init
, io
, priv
);
427 goto dai_trigger_end
;
429 ret
= rsnd_dai_call(start
, io
, priv
);
431 goto dai_trigger_end
;
433 case SNDRV_PCM_TRIGGER_STOP
:
434 ret
= rsnd_dai_call(stop
, io
, priv
);
436 goto dai_trigger_end
;
438 ret
= rsnd_dai_call(quit
, io
, priv
);
440 goto dai_trigger_end
;
442 ret
= rsnd_platform_call(priv
, dai
, stop
, ssi_id
);
444 goto dai_trigger_end
;
446 rsnd_dai_stream_quit(io
);
453 spin_unlock_irqrestore(&priv
->lock
, flags
);
458 static int rsnd_soc_dai_set_fmt(struct snd_soc_dai
*dai
, unsigned int fmt
)
460 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
462 /* set master/slave audio interface */
463 switch (fmt
& SND_SOC_DAIFMT_MASTER_MASK
) {
464 case SND_SOC_DAIFMT_CBM_CFM
:
465 rdai
->clk_master
= 0;
467 case SND_SOC_DAIFMT_CBS_CFS
:
468 rdai
->clk_master
= 1; /* codec is slave, cpu is master */
475 switch (fmt
& SND_SOC_DAIFMT_FORMAT_MASK
) {
476 case SND_SOC_DAIFMT_I2S
:
478 rdai
->data_alignment
= 0;
479 rdai
->frm_clk_inv
= 0;
481 case SND_SOC_DAIFMT_LEFT_J
:
483 rdai
->data_alignment
= 0;
484 rdai
->frm_clk_inv
= 1;
486 case SND_SOC_DAIFMT_RIGHT_J
:
488 rdai
->data_alignment
= 1;
489 rdai
->frm_clk_inv
= 1;
493 /* set clock inversion */
494 switch (fmt
& SND_SOC_DAIFMT_INV_MASK
) {
495 case SND_SOC_DAIFMT_NB_IF
:
496 rdai
->bit_clk_inv
= rdai
->bit_clk_inv
;
497 rdai
->frm_clk_inv
= !rdai
->frm_clk_inv
;
499 case SND_SOC_DAIFMT_IB_NF
:
500 rdai
->bit_clk_inv
= !rdai
->bit_clk_inv
;
501 rdai
->frm_clk_inv
= rdai
->frm_clk_inv
;
503 case SND_SOC_DAIFMT_IB_IF
:
504 rdai
->bit_clk_inv
= !rdai
->bit_clk_inv
;
505 rdai
->frm_clk_inv
= !rdai
->frm_clk_inv
;
507 case SND_SOC_DAIFMT_NB_NF
:
515 static const struct snd_soc_dai_ops rsnd_soc_dai_ops
= {
516 .trigger
= rsnd_soc_dai_trigger
,
517 .set_fmt
= rsnd_soc_dai_set_fmt
,
520 #define rsnd_path_parse(priv, io, type) \
522 struct rsnd_mod *mod; \
526 if (rsnd_is_enable_path(io, type)) { \
527 id = rsnd_info_id(priv, io, type); \
529 mod = rsnd_##type##_mod_get(priv, id); \
530 ret = rsnd_dai_connect(mod, io); \
536 #define rsnd_path_break(priv, io, type) \
538 struct rsnd_mod *mod; \
541 if (rsnd_is_enable_path(io, type)) { \
542 id = rsnd_info_id(priv, io, type); \
544 mod = rsnd_##type##_mod_get(priv, id); \
545 rsnd_dai_disconnect(mod, io); \
550 static int rsnd_path_init(struct rsnd_priv
*priv
,
551 struct rsnd_dai
*rdai
,
552 struct rsnd_dai_stream
*io
)
557 * Gen1 is created by SRU/SSI, and this SRU is base module of
558 * Gen2's SCU/SSIU/SSI. (Gen2 SCU/SSIU came from SRU)
561 * Gen1 SRU = Gen2 SCU + SSIU + etc
563 * Gen2 SCU path is very flexible, but, Gen1 SRU (SCU parts) is
568 ret
= rsnd_path_parse(priv
, io
, src
);
573 ret
= rsnd_path_parse(priv
, io
, ssi
);
578 ret
= rsnd_path_parse(priv
, io
, dvc
);
585 static void rsnd_of_parse_dai(struct platform_device
*pdev
,
586 const struct rsnd_of_data
*of_data
,
587 struct rsnd_priv
*priv
)
589 struct device_node
*dai_node
, *dai_np
;
590 struct device_node
*ssi_node
, *ssi_np
;
591 struct device_node
*src_node
, *src_np
;
592 struct device_node
*dvc_node
, *dvc_np
;
593 struct device_node
*playback
, *capture
;
594 struct rsnd_dai_platform_info
*dai_info
;
595 struct rcar_snd_info
*info
= rsnd_priv_to_info(priv
);
596 struct device
*dev
= &pdev
->dev
;
598 int dai_i
, ssi_i
, src_i
, dvc_i
;
603 dai_node
= of_get_child_by_name(dev
->of_node
, "rcar_sound,dai");
607 nr
= of_get_child_count(dai_node
);
611 dai_info
= devm_kzalloc(dev
,
612 sizeof(struct rsnd_dai_platform_info
) * nr
,
615 dev_err(dev
, "dai info allocation error\n");
619 info
->dai_info_nr
= nr
;
620 info
->dai_info
= dai_info
;
622 ssi_node
= of_get_child_by_name(dev
->of_node
, "rcar_sound,ssi");
623 src_node
= of_get_child_by_name(dev
->of_node
, "rcar_sound,src");
624 dvc_node
= of_get_child_by_name(dev
->of_node
, "rcar_sound,dvc");
626 #define mod_parse(name) \
628 struct rsnd_##name##_platform_info *name##_info; \
631 for_each_child_of_node(name##_node, name##_np) { \
632 name##_info = info->name##_info + name##_i; \
634 if (name##_np == playback) \
635 dai_info->playback.name = name##_info; \
636 if (name##_np == capture) \
637 dai_info->capture.name = name##_info; \
647 for_each_child_of_node(dai_node
, dai_np
) {
648 dai_info
= info
->dai_info
+ dai_i
;
652 playback
= of_parse_phandle(dai_np
, "playback", i
);
653 capture
= of_parse_phandle(dai_np
, "capture", i
);
655 if (!playback
&& !capture
)
662 of_node_put(playback
);
663 of_node_put(capture
);
670 static int rsnd_dai_probe(struct platform_device
*pdev
,
671 const struct rsnd_of_data
*of_data
,
672 struct rsnd_priv
*priv
)
674 struct snd_soc_dai_driver
*drv
;
675 struct rcar_snd_info
*info
= rsnd_priv_to_info(priv
);
676 struct rsnd_dai
*rdai
;
677 struct rsnd_ssi_platform_info
*pmod
, *cmod
;
678 struct device
*dev
= rsnd_priv_to_dev(priv
);
682 rsnd_of_parse_dai(pdev
, of_data
, priv
);
684 dai_nr
= info
->dai_info_nr
;
686 dev_err(dev
, "no dai\n");
690 drv
= devm_kzalloc(dev
, sizeof(*drv
) * dai_nr
, GFP_KERNEL
);
691 rdai
= devm_kzalloc(dev
, sizeof(*rdai
) * dai_nr
, GFP_KERNEL
);
693 dev_err(dev
, "dai allocate failed\n");
697 priv
->rdai_nr
= dai_nr
;
701 for (i
= 0; i
< dai_nr
; i
++) {
703 pmod
= info
->dai_info
[i
].playback
.ssi
;
704 cmod
= info
->dai_info
[i
].capture
.ssi
;
709 snprintf(rdai
[i
].name
, RSND_DAI_NAME_SIZE
, "rsnd-dai.%d", i
);
713 * init snd_soc_dai_driver
715 drv
[i
].name
= rdai
[i
].name
;
716 drv
[i
].ops
= &rsnd_soc_dai_ops
;
718 snprintf(rdai
[i
].playback
.name
, RSND_DAI_NAME_SIZE
,
719 "DAI%d Playback", i
);
721 drv
[i
].playback
.rates
= RSND_RATES
;
722 drv
[i
].playback
.formats
= RSND_FMTS
;
723 drv
[i
].playback
.channels_min
= 2;
724 drv
[i
].playback
.channels_max
= 2;
725 drv
[i
].playback
.stream_name
= rdai
[i
].playback
.name
;
727 rdai
[i
].playback
.info
= &info
->dai_info
[i
].playback
;
728 rdai
[i
].playback
.rdai
= rdai
+ i
;
729 rsnd_path_init(priv
, &rdai
[i
], &rdai
[i
].playback
);
732 snprintf(rdai
[i
].capture
.name
, RSND_DAI_NAME_SIZE
,
735 drv
[i
].capture
.rates
= RSND_RATES
;
736 drv
[i
].capture
.formats
= RSND_FMTS
;
737 drv
[i
].capture
.channels_min
= 2;
738 drv
[i
].capture
.channels_max
= 2;
739 drv
[i
].capture
.stream_name
= rdai
[i
].capture
.name
;
741 rdai
[i
].capture
.info
= &info
->dai_info
[i
].capture
;
742 rdai
[i
].capture
.rdai
= rdai
+ i
;
743 rsnd_path_init(priv
, &rdai
[i
], &rdai
[i
].capture
);
746 dev_dbg(dev
, "%s (%s/%s)\n", rdai
[i
].name
,
747 pmod
? "play" : " -- ",
748 cmod
? "capture" : " -- ");
757 static struct snd_pcm_hardware rsnd_pcm_hardware
= {
758 .info
= SNDRV_PCM_INFO_INTERLEAVED
|
759 SNDRV_PCM_INFO_MMAP
|
760 SNDRV_PCM_INFO_MMAP_VALID
,
761 .buffer_bytes_max
= 64 * 1024,
762 .period_bytes_min
= 32,
763 .period_bytes_max
= 8192,
769 static int rsnd_pcm_open(struct snd_pcm_substream
*substream
)
771 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
774 snd_soc_set_runtime_hwparams(substream
, &rsnd_pcm_hardware
);
776 ret
= snd_pcm_hw_constraint_integer(runtime
,
777 SNDRV_PCM_HW_PARAM_PERIODS
);
782 static int rsnd_hw_params(struct snd_pcm_substream
*substream
,
783 struct snd_pcm_hw_params
*hw_params
)
785 struct snd_soc_dai
*dai
= rsnd_substream_to_dai(substream
);
786 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
787 struct rsnd_dai_stream
*io
= rsnd_rdai_to_io(rdai
, substream
);
790 ret
= rsnd_dai_call(hw_params
, io
, substream
, hw_params
);
794 return snd_pcm_lib_malloc_pages(substream
,
795 params_buffer_bytes(hw_params
));
798 static snd_pcm_uframes_t
rsnd_pointer(struct snd_pcm_substream
*substream
)
800 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
801 struct snd_soc_dai
*dai
= rsnd_substream_to_dai(substream
);
802 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
803 struct rsnd_dai_stream
*io
= rsnd_rdai_to_io(rdai
, substream
);
805 return bytes_to_frames(runtime
, io
->byte_pos
);
808 static struct snd_pcm_ops rsnd_pcm_ops
= {
809 .open
= rsnd_pcm_open
,
810 .ioctl
= snd_pcm_lib_ioctl
,
811 .hw_params
= rsnd_hw_params
,
812 .hw_free
= snd_pcm_lib_free_pages
,
813 .pointer
= rsnd_pointer
,
819 #define kcontrol_to_cfg(kctrl) ((struct rsnd_kctrl_cfg *)kctrl->private_value)
820 static int rsnd_kctrl_info(struct snd_kcontrol
*kctrl
,
821 struct snd_ctl_elem_info
*uinfo
)
823 struct rsnd_kctrl_cfg
*cfg
= kcontrol_to_cfg(kctrl
);
826 uinfo
->type
= SNDRV_CTL_ELEM_TYPE_ENUMERATED
;
827 uinfo
->count
= cfg
->size
;
828 uinfo
->value
.enumerated
.items
= cfg
->max
;
829 if (uinfo
->value
.enumerated
.item
>= cfg
->max
)
830 uinfo
->value
.enumerated
.item
= cfg
->max
- 1;
831 strlcpy(uinfo
->value
.enumerated
.name
,
832 cfg
->texts
[uinfo
->value
.enumerated
.item
],
833 sizeof(uinfo
->value
.enumerated
.name
));
835 uinfo
->count
= cfg
->size
;
836 uinfo
->value
.integer
.min
= 0;
837 uinfo
->value
.integer
.max
= cfg
->max
;
838 uinfo
->type
= (cfg
->max
== 1) ?
839 SNDRV_CTL_ELEM_TYPE_BOOLEAN
:
840 SNDRV_CTL_ELEM_TYPE_INTEGER
;
846 static int rsnd_kctrl_get(struct snd_kcontrol
*kctrl
,
847 struct snd_ctl_elem_value
*uc
)
849 struct rsnd_kctrl_cfg
*cfg
= kcontrol_to_cfg(kctrl
);
852 for (i
= 0; i
< cfg
->size
; i
++)
854 uc
->value
.enumerated
.item
[i
] = cfg
->val
[i
];
856 uc
->value
.integer
.value
[i
] = cfg
->val
[i
];
861 static int rsnd_kctrl_put(struct snd_kcontrol
*kctrl
,
862 struct snd_ctl_elem_value
*uc
)
864 struct rsnd_mod
*mod
= snd_kcontrol_chip(kctrl
);
865 struct rsnd_kctrl_cfg
*cfg
= kcontrol_to_cfg(kctrl
);
868 for (i
= 0; i
< cfg
->size
; i
++) {
870 change
|= (uc
->value
.enumerated
.item
[i
] != cfg
->val
[i
]);
871 cfg
->val
[i
] = uc
->value
.enumerated
.item
[i
];
873 change
|= (uc
->value
.integer
.value
[i
] != cfg
->val
[i
]);
874 cfg
->val
[i
] = uc
->value
.integer
.value
[i
];
879 cfg
->update(cfg
->io
, mod
);
884 static int __rsnd_kctrl_new(struct rsnd_mod
*mod
,
885 struct rsnd_dai_stream
*io
,
886 struct snd_soc_pcm_runtime
*rtd
,
887 const unsigned char *name
,
888 struct rsnd_kctrl_cfg
*cfg
,
889 void (*update
)(struct rsnd_dai_stream
*io
,
890 struct rsnd_mod
*mod
))
892 struct snd_soc_card
*soc_card
= rtd
->card
;
893 struct snd_card
*card
= rtd
->card
->snd_card
;
894 struct snd_kcontrol
*kctrl
;
895 struct snd_kcontrol_new knew
= {
896 .iface
= SNDRV_CTL_ELEM_IFACE_MIXER
,
898 .info
= rsnd_kctrl_info
,
899 .index
= rtd
- soc_card
->rtd
,
900 .get
= rsnd_kctrl_get
,
901 .put
= rsnd_kctrl_put
,
902 .private_value
= (unsigned long)cfg
,
906 kctrl
= snd_ctl_new1(&knew
, mod
);
910 ret
= snd_ctl_add(card
, kctrl
);
912 snd_ctl_free_one(kctrl
);
916 cfg
->update
= update
;
924 void _rsnd_kctrl_remove(struct rsnd_kctrl_cfg
*cfg
)
926 snd_ctl_remove(cfg
->card
, cfg
->kctrl
);
929 int rsnd_kctrl_new_m(struct rsnd_mod
*mod
,
930 struct rsnd_dai_stream
*io
,
931 struct snd_soc_pcm_runtime
*rtd
,
932 const unsigned char *name
,
933 void (*update
)(struct rsnd_dai_stream
*io
,
934 struct rsnd_mod
*mod
),
935 struct rsnd_kctrl_cfg_m
*_cfg
,
939 _cfg
->cfg
.size
= RSND_DVC_CHANNELS
;
940 _cfg
->cfg
.val
= _cfg
->val
;
941 return __rsnd_kctrl_new(mod
, io
, rtd
, name
, &_cfg
->cfg
, update
);
944 int rsnd_kctrl_new_s(struct rsnd_mod
*mod
,
945 struct rsnd_dai_stream
*io
,
946 struct snd_soc_pcm_runtime
*rtd
,
947 const unsigned char *name
,
948 void (*update
)(struct rsnd_dai_stream
*io
,
949 struct rsnd_mod
*mod
),
950 struct rsnd_kctrl_cfg_s
*_cfg
,
955 _cfg
->cfg
.val
= &_cfg
->val
;
956 return __rsnd_kctrl_new(mod
, io
, rtd
, name
, &_cfg
->cfg
, update
);
959 int rsnd_kctrl_new_e(struct rsnd_mod
*mod
,
960 struct rsnd_dai_stream
*io
,
961 struct snd_soc_pcm_runtime
*rtd
,
962 const unsigned char *name
,
963 struct rsnd_kctrl_cfg_s
*_cfg
,
964 void (*update
)(struct rsnd_dai_stream
*io
,
965 struct rsnd_mod
*mod
),
966 const char * const *texts
,
971 _cfg
->cfg
.val
= &_cfg
->val
;
972 _cfg
->cfg
.texts
= texts
;
973 return __rsnd_kctrl_new(mod
, io
, rtd
, name
, &_cfg
->cfg
, update
);
980 #define PREALLOC_BUFFER (32 * 1024)
981 #define PREALLOC_BUFFER_MAX (32 * 1024)
983 static int rsnd_pcm_new(struct snd_soc_pcm_runtime
*rtd
)
985 struct snd_soc_dai
*dai
= rtd
->cpu_dai
;
986 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
989 ret
= rsnd_dai_call(pcm_new
, &rdai
->playback
, rtd
);
993 ret
= rsnd_dai_call(pcm_new
, &rdai
->capture
, rtd
);
997 return snd_pcm_lib_preallocate_pages_for_all(
1000 rtd
->card
->snd_card
->dev
,
1001 PREALLOC_BUFFER
, PREALLOC_BUFFER_MAX
);
1004 static struct snd_soc_platform_driver rsnd_soc_platform
= {
1005 .ops
= &rsnd_pcm_ops
,
1006 .pcm_new
= rsnd_pcm_new
,
1009 static const struct snd_soc_component_driver rsnd_soc_component
= {
1013 static int rsnd_rdai_continuance_probe(struct rsnd_priv
*priv
,
1014 struct rsnd_dai_stream
*io
)
1018 ret
= rsnd_dai_call(probe
, io
, priv
);
1019 if (ret
== -EAGAIN
) {
1021 * Fallback to PIO mode
1025 * call "remove" for SSI/SRC/DVC
1026 * SSI will be switch to PIO mode if it was DMA mode
1029 * rsnd_ssi_fallback()
1031 rsnd_dai_call(remove
, io
, priv
);
1034 * remove SRC/DVC from DAI,
1036 rsnd_path_break(priv
, io
, src
);
1037 rsnd_path_break(priv
, io
, dvc
);
1042 rsnd_dai_call(fallback
, io
, priv
);
1046 * DAI has SSI which is PIO mode only now.
1048 ret
= rsnd_dai_call(probe
, io
, priv
);
1057 static int rsnd_probe(struct platform_device
*pdev
)
1059 struct rcar_snd_info
*info
;
1060 struct rsnd_priv
*priv
;
1061 struct device
*dev
= &pdev
->dev
;
1062 struct rsnd_dai
*rdai
;
1063 const struct of_device_id
*of_id
= of_match_device(rsnd_of_match
, dev
);
1064 const struct rsnd_of_data
*of_data
;
1065 int (*probe_func
[])(struct platform_device
*pdev
,
1066 const struct rsnd_of_data
*of_data
,
1067 struct rsnd_priv
*priv
) = {
1081 info
= devm_kzalloc(&pdev
->dev
,
1082 sizeof(struct rcar_snd_info
), GFP_KERNEL
);
1083 of_data
= of_id
->data
;
1085 info
= pdev
->dev
.platform_data
;
1089 dev_err(dev
, "driver needs R-Car sound information\n");
1096 priv
= devm_kzalloc(dev
, sizeof(*priv
), GFP_KERNEL
);
1098 dev_err(dev
, "priv allocate failed\n");
1104 spin_lock_init(&priv
->lock
);
1109 for (i
= 0; i
< ARRAY_SIZE(probe_func
); i
++) {
1110 ret
= probe_func
[i
](pdev
, of_data
, priv
);
1115 for_each_rsnd_dai(rdai
, priv
, i
) {
1116 ret
= rsnd_rdai_continuance_probe(priv
, &rdai
->playback
);
1118 goto exit_snd_probe
;
1120 ret
= rsnd_rdai_continuance_probe(priv
, &rdai
->capture
);
1122 goto exit_snd_probe
;
1125 dev_set_drvdata(dev
, priv
);
1130 ret
= snd_soc_register_platform(dev
, &rsnd_soc_platform
);
1132 dev_err(dev
, "cannot snd soc register\n");
1136 ret
= snd_soc_register_component(dev
, &rsnd_soc_component
,
1137 priv
->daidrv
, rsnd_rdai_nr(priv
));
1139 dev_err(dev
, "cannot snd dai register\n");
1143 pm_runtime_enable(dev
);
1145 dev_info(dev
, "probed\n");
1149 snd_soc_unregister_platform(dev
);
1151 for_each_rsnd_dai(rdai
, priv
, i
) {
1152 rsnd_dai_call(remove
, &rdai
->playback
, priv
);
1153 rsnd_dai_call(remove
, &rdai
->capture
, priv
);
1159 static int rsnd_remove(struct platform_device
*pdev
)
1161 struct rsnd_priv
*priv
= dev_get_drvdata(&pdev
->dev
);
1162 struct rsnd_dai
*rdai
;
1163 void (*remove_func
[])(struct platform_device
*pdev
,
1164 struct rsnd_priv
*priv
) = {
1171 pm_runtime_disable(&pdev
->dev
);
1173 for_each_rsnd_dai(rdai
, priv
, i
) {
1174 ret
|= rsnd_dai_call(remove
, &rdai
->playback
, priv
);
1175 ret
|= rsnd_dai_call(remove
, &rdai
->capture
, priv
);
1178 for (i
= 0; i
< ARRAY_SIZE(remove_func
); i
++)
1179 remove_func
[i
](pdev
, priv
);
1181 snd_soc_unregister_component(&pdev
->dev
);
1182 snd_soc_unregister_platform(&pdev
->dev
);
1187 static struct platform_driver rsnd_driver
= {
1189 .name
= "rcar_sound",
1190 .of_match_table
= rsnd_of_match
,
1192 .probe
= rsnd_probe
,
1193 .remove
= rsnd_remove
,
1195 module_platform_driver(rsnd_driver
);
1197 MODULE_LICENSE("GPL");
1198 MODULE_DESCRIPTION("Renesas R-Car audio driver");
1199 MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
1200 MODULE_ALIAS("platform:rcar-pcm-audio");