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_192000
100 #define RSND_FMTS (SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE)
102 static const struct of_device_id rsnd_of_match
[] = {
103 { .compatible
= "renesas,rcar_sound-gen1", .data
= (void *)RSND_GEN1
},
104 { .compatible
= "renesas,rcar_sound-gen2", .data
= (void *)RSND_GEN2
},
105 { .compatible
= "renesas,rcar_sound-gen3", .data
= (void *)RSND_GEN2
}, /* gen2 compatible */
108 MODULE_DEVICE_TABLE(of
, rsnd_of_match
);
113 void rsnd_mod_make_sure(struct rsnd_mod
*mod
, enum rsnd_mod_type type
)
115 if (mod
->type
!= type
) {
116 struct rsnd_priv
*priv
= rsnd_mod_to_priv(mod
);
117 struct device
*dev
= rsnd_priv_to_dev(priv
);
119 dev_warn(dev
, "%s[%d] is not your expected module\n",
120 rsnd_mod_name(mod
), rsnd_mod_id(mod
));
124 char *rsnd_mod_name(struct rsnd_mod
*mod
)
126 if (!mod
|| !mod
->ops
)
129 return mod
->ops
->name
;
132 struct dma_chan
*rsnd_mod_dma_req(struct rsnd_dai_stream
*io
,
133 struct rsnd_mod
*mod
)
135 if (!mod
|| !mod
->ops
|| !mod
->ops
->dma_req
)
138 return mod
->ops
->dma_req(io
, mod
);
141 u32
*rsnd_mod_get_status(struct rsnd_dai_stream
*io
,
142 struct rsnd_mod
*mod
,
143 enum rsnd_mod_type type
)
148 int rsnd_mod_init(struct rsnd_priv
*priv
,
149 struct rsnd_mod
*mod
,
150 struct rsnd_mod_ops
*ops
,
152 u32
* (*get_status
)(struct rsnd_dai_stream
*io
,
153 struct rsnd_mod
*mod
,
154 enum rsnd_mod_type type
),
155 enum rsnd_mod_type type
,
158 int ret
= clk_prepare(clk
);
168 mod
->get_status
= get_status
;
173 void rsnd_mod_quit(struct rsnd_mod
*mod
)
176 clk_unprepare(mod
->clk
);
180 void rsnd_mod_interrupt(struct rsnd_mod
*mod
,
181 void (*callback
)(struct rsnd_mod
*mod
,
182 struct rsnd_dai_stream
*io
))
184 struct rsnd_priv
*priv
= rsnd_mod_to_priv(mod
);
185 struct rsnd_dai_stream
*io
;
186 struct rsnd_dai
*rdai
;
189 for_each_rsnd_dai(rdai
, priv
, i
) {
190 io
= &rdai
->playback
;
191 if (mod
== io
->mod
[mod
->type
])
195 if (mod
== io
->mod
[mod
->type
])
200 int rsnd_io_is_working(struct rsnd_dai_stream
*io
)
202 /* see rsnd_dai_stream_init/quit() */
203 return !!io
->substream
;
206 int rsnd_runtime_channel_original(struct rsnd_dai_stream
*io
)
208 struct snd_pcm_runtime
*runtime
= rsnd_io_to_runtime(io
);
210 return runtime
->channels
;
213 int rsnd_runtime_channel_after_ctu(struct rsnd_dai_stream
*io
)
215 int chan
= rsnd_runtime_channel_original(io
);
216 struct rsnd_mod
*ctu_mod
= rsnd_io_to_mod_ctu(io
);
219 u32 converted_chan
= rsnd_ctu_converted_channel(ctu_mod
);
222 return converted_chan
;
228 int rsnd_runtime_channel_for_ssi(struct rsnd_dai_stream
*io
)
230 struct rsnd_dai
*rdai
= rsnd_io_to_rdai(io
);
231 int chan
= rsnd_io_is_play(io
) ?
232 rsnd_runtime_channel_after_ctu(io
) :
233 rsnd_runtime_channel_original(io
);
236 if (rsnd_runtime_is_ssi_multi(io
))
237 chan
/= rsnd_rdai_ssi_lane_get(rdai
);
239 /* TDM Extend Mode needs 8ch */
246 int rsnd_runtime_is_ssi_multi(struct rsnd_dai_stream
*io
)
248 struct rsnd_dai
*rdai
= rsnd_io_to_rdai(io
);
249 int lane
= rsnd_rdai_ssi_lane_get(rdai
);
250 int chan
= rsnd_io_is_play(io
) ?
251 rsnd_runtime_channel_after_ctu(io
) :
252 rsnd_runtime_channel_original(io
);
254 return (chan
> 2) && (lane
> 1);
257 int rsnd_runtime_is_ssi_tdm(struct rsnd_dai_stream
*io
)
259 return rsnd_runtime_channel_for_ssi(io
) >= 6;
265 u32
rsnd_get_adinr_bit(struct rsnd_mod
*mod
, struct rsnd_dai_stream
*io
)
267 struct rsnd_priv
*priv
= rsnd_mod_to_priv(mod
);
268 struct snd_pcm_runtime
*runtime
= rsnd_io_to_runtime(io
);
269 struct device
*dev
= rsnd_priv_to_dev(priv
);
271 switch (runtime
->sample_bits
) {
278 dev_warn(dev
, "not supported sample bits\n");
286 u32
rsnd_get_dalign(struct rsnd_mod
*mod
, struct rsnd_dai_stream
*io
)
288 struct rsnd_mod
*ssiu
= rsnd_io_to_mod_ssiu(io
);
289 struct rsnd_mod
*target
;
290 struct snd_pcm_runtime
*runtime
= rsnd_io_to_runtime(io
);
291 u32 val
= 0x76543210;
295 * *Hardware* L/R and *Software* L/R are inverted.
296 * We need to care about inversion timing to control
297 * Playback/Capture correctly.
298 * The point is [DVC] needs *Hardware* L/R, [MEM] needs *Software* L/R
300 * sL/R : software L/R
301 * hL/R : hardware L/R
302 * (*) : conversion timing
305 * sL/R (*) hL/R hL/R hL/R hL/R hL/R
306 * [MEM] -> [SRC] -> [DVC] -> [CMD] -> [SSIU] -> [SSI] -> codec
309 * hL/R hL/R hL/R hL/R hL/R (*) sL/R
310 * codec -> [SSI] -> [SSIU] -> [SRC] -> [DVC] -> [CMD] -> [MEM]
312 if (rsnd_io_is_play(io
)) {
313 struct rsnd_mod
*src
= rsnd_io_to_mod_src(io
);
315 target
= src
? src
: ssiu
;
317 struct rsnd_mod
*cmd
= rsnd_io_to_mod_cmd(io
);
319 target
= cmd
? cmd
: ssiu
;
322 mask
<<= runtime
->channels
* 4;
325 switch (runtime
->sample_bits
) {
327 val
|= 0x67452301 & ~mask
;
330 val
|= 0x76543210 & ~mask
;
335 * exchange channeles on SRC if possible,
336 * otherwise, R/L volume settings on DVC
337 * changes inverted channels
345 u32
rsnd_get_busif_shift(struct rsnd_dai_stream
*io
, struct rsnd_mod
*mod
)
347 enum rsnd_mod_type playback_mods
[] = {
352 enum rsnd_mod_type capture_mods
[] = {
357 struct snd_pcm_runtime
*runtime
= rsnd_io_to_runtime(io
);
358 struct rsnd_mod
*tmod
= NULL
;
359 enum rsnd_mod_type
*mods
=
360 rsnd_io_is_play(io
) ?
361 playback_mods
: capture_mods
;
365 * This is needed for 24bit data
366 * We need to shift 8bit
368 * Linux 24bit data is located as 0x00******
369 * HW 24bit data is located as 0x******00
372 switch (runtime
->sample_bits
) {
379 for (i
= 0; i
< ARRAY_SIZE(playback_mods
); i
++) {
380 tmod
= rsnd_io_to_mod(io
, mods
[i
]);
388 if (rsnd_io_is_play(io
))
389 return (0 << 20) | /* shift to Left */
390 (8 << 16); /* 8bit */
392 return (1 << 20) | /* shift to Right */
393 (8 << 16); /* 8bit */
399 struct rsnd_mod
*rsnd_mod_next(int *iterator
,
400 struct rsnd_dai_stream
*io
,
401 enum rsnd_mod_type
*array
,
404 struct rsnd_mod
*mod
;
405 enum rsnd_mod_type type
;
406 int max
= array
? array_size
: RSND_MOD_MAX
;
408 for (; *iterator
< max
; (*iterator
)++) {
409 type
= (array
) ? array
[*iterator
] : *iterator
;
420 static enum rsnd_mod_type rsnd_mod_sequence
[][RSND_MOD_MAX
] = {
454 static int rsnd_status_update(u32
*status
,
455 int shift
, int add
, int timing
)
457 u32 mask
= 0xF << shift
;
458 u8 val
= (*status
>> shift
) & 0xF;
459 u8 next_val
= (val
+ add
) & 0xF;
460 int func_call
= (val
== timing
);
462 if (next_val
== 0xF) /* underflow case */
465 *status
= (*status
& ~mask
) + (next_val
<< shift
);
470 #define rsnd_dai_call(fn, io, param...) \
472 struct device *dev = rsnd_priv_to_dev(rsnd_io_to_priv(io)); \
473 struct rsnd_mod *mod; \
474 int is_play = rsnd_io_is_play(io); \
476 enum rsnd_mod_type *types = rsnd_mod_sequence[is_play]; \
477 for_each_rsnd_mod_arrays(i, mod, io, types, RSND_MOD_MAX) { \
479 u32 *status = mod->get_status(io, mod, types[i]); \
480 int func_call = rsnd_status_update(status, \
481 __rsnd_mod_shift_##fn, \
482 __rsnd_mod_add_##fn, \
483 __rsnd_mod_call_##fn); \
484 dev_dbg(dev, "%s[%d]\t0x%08x %s\n", \
485 rsnd_mod_name(mod), rsnd_mod_id(mod), *status, \
486 (func_call && (mod)->ops->fn) ? #fn : ""); \
487 if (func_call && (mod)->ops->fn) \
488 tmp = (mod)->ops->fn(mod, io, param); \
490 dev_err(dev, "%s[%d] : %s error %d\n", \
491 rsnd_mod_name(mod), rsnd_mod_id(mod), \
498 int rsnd_dai_connect(struct rsnd_mod
*mod
,
499 struct rsnd_dai_stream
*io
,
500 enum rsnd_mod_type type
)
502 struct rsnd_priv
*priv
;
508 if (io
->mod
[type
] == mod
)
514 priv
= rsnd_mod_to_priv(mod
);
515 dev
= rsnd_priv_to_dev(priv
);
519 dev_dbg(dev
, "%s[%d] is connected to io (%s)\n",
520 rsnd_mod_name(mod
), rsnd_mod_id(mod
),
521 rsnd_io_is_play(io
) ? "Playback" : "Capture");
526 static void rsnd_dai_disconnect(struct rsnd_mod
*mod
,
527 struct rsnd_dai_stream
*io
,
528 enum rsnd_mod_type type
)
530 io
->mod
[type
] = NULL
;
533 int rsnd_rdai_channels_ctrl(struct rsnd_dai
*rdai
,
536 if (max_channels
> 0)
537 rdai
->max_channels
= max_channels
;
539 return rdai
->max_channels
;
542 int rsnd_rdai_ssi_lane_ctrl(struct rsnd_dai
*rdai
,
546 rdai
->ssi_lane
= ssi_lane
;
548 return rdai
->ssi_lane
;
551 struct rsnd_dai
*rsnd_rdai_get(struct rsnd_priv
*priv
, int id
)
553 if ((id
< 0) || (id
>= rsnd_rdai_nr(priv
)))
556 return priv
->rdai
+ id
;
559 #define rsnd_dai_to_priv(dai) snd_soc_dai_get_drvdata(dai)
560 static struct rsnd_dai
*rsnd_dai_to_rdai(struct snd_soc_dai
*dai
)
562 struct rsnd_priv
*priv
= rsnd_dai_to_priv(dai
);
564 return rsnd_rdai_get(priv
, dai
->id
);
568 * rsnd_soc_dai functions
570 void rsnd_dai_period_elapsed(struct rsnd_dai_stream
*io
)
572 struct snd_pcm_substream
*substream
= io
->substream
;
575 * this function should be called...
577 * - if rsnd_dai_pointer_update() returns true
578 * - without spin lock
581 snd_pcm_period_elapsed(substream
);
584 static void rsnd_dai_stream_init(struct rsnd_dai_stream
*io
,
585 struct snd_pcm_substream
*substream
)
587 io
->substream
= substream
;
590 static void rsnd_dai_stream_quit(struct rsnd_dai_stream
*io
)
592 io
->substream
= NULL
;
596 struct snd_soc_dai
*rsnd_substream_to_dai(struct snd_pcm_substream
*substream
)
598 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
604 struct rsnd_dai_stream
*rsnd_rdai_to_io(struct rsnd_dai
*rdai
,
605 struct snd_pcm_substream
*substream
)
607 if (substream
->stream
== SNDRV_PCM_STREAM_PLAYBACK
)
608 return &rdai
->playback
;
610 return &rdai
->capture
;
613 static int rsnd_soc_dai_trigger(struct snd_pcm_substream
*substream
, int cmd
,
614 struct snd_soc_dai
*dai
)
616 struct rsnd_priv
*priv
= rsnd_dai_to_priv(dai
);
617 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
618 struct rsnd_dai_stream
*io
= rsnd_rdai_to_io(rdai
, substream
);
622 spin_lock_irqsave(&priv
->lock
, flags
);
625 case SNDRV_PCM_TRIGGER_START
:
626 case SNDRV_PCM_TRIGGER_RESUME
:
627 rsnd_dai_stream_init(io
, substream
);
629 ret
= rsnd_dai_call(init
, io
, priv
);
631 goto dai_trigger_end
;
633 ret
= rsnd_dai_call(start
, io
, priv
);
635 goto dai_trigger_end
;
637 ret
= rsnd_dai_call(irq
, io
, priv
, 1);
639 goto dai_trigger_end
;
642 case SNDRV_PCM_TRIGGER_STOP
:
643 case SNDRV_PCM_TRIGGER_SUSPEND
:
644 ret
= rsnd_dai_call(irq
, io
, priv
, 0);
646 ret
|= rsnd_dai_call(stop
, io
, priv
);
648 ret
|= rsnd_dai_call(quit
, io
, priv
);
650 rsnd_dai_stream_quit(io
);
657 spin_unlock_irqrestore(&priv
->lock
, flags
);
662 static int rsnd_soc_dai_set_fmt(struct snd_soc_dai
*dai
, unsigned int fmt
)
664 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
666 /* set master/slave audio interface */
667 switch (fmt
& SND_SOC_DAIFMT_MASTER_MASK
) {
668 case SND_SOC_DAIFMT_CBM_CFM
:
669 rdai
->clk_master
= 0;
671 case SND_SOC_DAIFMT_CBS_CFS
:
672 rdai
->clk_master
= 1; /* codec is slave, cpu is master */
679 switch (fmt
& SND_SOC_DAIFMT_FORMAT_MASK
) {
680 case SND_SOC_DAIFMT_I2S
:
682 rdai
->data_alignment
= 0;
683 rdai
->frm_clk_inv
= 0;
685 case SND_SOC_DAIFMT_LEFT_J
:
687 rdai
->data_alignment
= 0;
688 rdai
->frm_clk_inv
= 1;
690 case SND_SOC_DAIFMT_RIGHT_J
:
692 rdai
->data_alignment
= 1;
693 rdai
->frm_clk_inv
= 1;
697 /* set clock inversion */
698 switch (fmt
& SND_SOC_DAIFMT_INV_MASK
) {
699 case SND_SOC_DAIFMT_NB_IF
:
700 rdai
->frm_clk_inv
= !rdai
->frm_clk_inv
;
702 case SND_SOC_DAIFMT_IB_NF
:
703 rdai
->bit_clk_inv
= !rdai
->bit_clk_inv
;
705 case SND_SOC_DAIFMT_IB_IF
:
706 rdai
->bit_clk_inv
= !rdai
->bit_clk_inv
;
707 rdai
->frm_clk_inv
= !rdai
->frm_clk_inv
;
709 case SND_SOC_DAIFMT_NB_NF
:
717 static int rsnd_soc_set_dai_tdm_slot(struct snd_soc_dai
*dai
,
718 u32 tx_mask
, u32 rx_mask
,
719 int slots
, int slot_width
)
721 struct rsnd_priv
*priv
= rsnd_dai_to_priv(dai
);
722 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
723 struct device
*dev
= rsnd_priv_to_dev(priv
);
729 /* TDM Extend Mode */
730 rsnd_rdai_channels_set(rdai
, slots
);
731 rsnd_rdai_ssi_lane_set(rdai
, 1);
734 dev_err(dev
, "unsupported TDM slots (%d)\n", slots
);
741 static unsigned int rsnd_soc_hw_channels_list
[] = {
745 static unsigned int rsnd_soc_hw_rate_list
[] = {
760 static int rsnd_soc_hw_rule(struct rsnd_priv
*priv
,
761 unsigned int *list
, int list_num
,
762 struct snd_interval
*baseline
, struct snd_interval
*iv
)
764 struct snd_interval p
;
768 snd_interval_any(&p
);
772 for (i
= 0; i
< list_num
; i
++) {
774 if (!snd_interval_test(iv
, list
[i
]))
777 rate
= rsnd_ssi_clk_query(priv
,
778 baseline
->min
, list
[i
], NULL
);
780 p
.min
= min(p
.min
, list
[i
]);
781 p
.max
= max(p
.max
, list
[i
]);
784 rate
= rsnd_ssi_clk_query(priv
,
785 baseline
->max
, list
[i
], NULL
);
787 p
.min
= min(p
.min
, list
[i
]);
788 p
.max
= max(p
.max
, list
[i
]);
792 return snd_interval_refine(iv
, &p
);
795 static int rsnd_soc_hw_rule_rate(struct snd_pcm_hw_params
*params
,
796 struct snd_pcm_hw_rule
*rule
)
798 struct snd_interval
*ic_
= hw_param_interval(params
, SNDRV_PCM_HW_PARAM_CHANNELS
);
799 struct snd_interval
*ir
= hw_param_interval(params
, SNDRV_PCM_HW_PARAM_RATE
);
800 struct snd_interval ic
;
801 struct snd_soc_dai
*dai
= rule
->private;
802 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
803 struct rsnd_priv
*priv
= rsnd_rdai_to_priv(rdai
);
806 * possible sampling rate limitation is same as
807 * 2ch if it supports multi ssi
810 if (1 < rsnd_rdai_ssi_lane_get(rdai
)) {
815 return rsnd_soc_hw_rule(priv
, rsnd_soc_hw_rate_list
,
816 ARRAY_SIZE(rsnd_soc_hw_rate_list
),
821 static int rsnd_soc_hw_rule_channels(struct snd_pcm_hw_params
*params
,
822 struct snd_pcm_hw_rule
*rule
)
824 struct snd_interval
*ic_
= hw_param_interval(params
, SNDRV_PCM_HW_PARAM_CHANNELS
);
825 struct snd_interval
*ir
= hw_param_interval(params
, SNDRV_PCM_HW_PARAM_RATE
);
826 struct snd_interval ic
;
827 struct snd_soc_dai
*dai
= rule
->private;
828 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
829 struct rsnd_priv
*priv
= rsnd_rdai_to_priv(rdai
);
832 * possible sampling rate limitation is same as
833 * 2ch if it supports multi ssi
836 if (1 < rsnd_rdai_ssi_lane_get(rdai
)) {
841 return rsnd_soc_hw_rule(priv
, rsnd_soc_hw_channels_list
,
842 ARRAY_SIZE(rsnd_soc_hw_channels_list
),
846 static const struct snd_pcm_hardware rsnd_pcm_hardware
= {
847 .info
= SNDRV_PCM_INFO_INTERLEAVED
|
848 SNDRV_PCM_INFO_MMAP
|
849 SNDRV_PCM_INFO_MMAP_VALID
,
850 .buffer_bytes_max
= 64 * 1024,
851 .period_bytes_min
= 32,
852 .period_bytes_max
= 8192,
858 static int rsnd_soc_dai_startup(struct snd_pcm_substream
*substream
,
859 struct snd_soc_dai
*dai
)
861 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
862 struct rsnd_priv
*priv
= rsnd_rdai_to_priv(rdai
);
863 struct rsnd_dai_stream
*io
= rsnd_rdai_to_io(rdai
, substream
);
864 struct snd_pcm_hw_constraint_list
*constraint
= &rdai
->constraint
;
865 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
866 unsigned int max_channels
= rsnd_rdai_channels_get(rdai
);
872 * It depends on Platform design
874 constraint
->list
= rsnd_soc_hw_channels_list
;
875 constraint
->count
= 0;
876 constraint
->mask
= 0;
878 for (i
= 0; i
< ARRAY_SIZE(rsnd_soc_hw_channels_list
); i
++) {
879 if (rsnd_soc_hw_channels_list
[i
] > max_channels
)
881 constraint
->count
= i
+ 1;
884 snd_soc_set_runtime_hwparams(substream
, &rsnd_pcm_hardware
);
886 snd_pcm_hw_constraint_list(runtime
, 0,
887 SNDRV_PCM_HW_PARAM_CHANNELS
, constraint
);
889 snd_pcm_hw_constraint_integer(runtime
,
890 SNDRV_PCM_HW_PARAM_PERIODS
);
893 * Sampling Rate / Channel Limitation
894 * It depends on Clock Master Mode
896 if (rsnd_rdai_is_clk_master(rdai
)) {
897 snd_pcm_hw_rule_add(runtime
, 0, SNDRV_PCM_HW_PARAM_RATE
,
898 rsnd_soc_hw_rule_rate
, dai
,
899 SNDRV_PCM_HW_PARAM_CHANNELS
, -1);
900 snd_pcm_hw_rule_add(runtime
, 0, SNDRV_PCM_HW_PARAM_CHANNELS
,
901 rsnd_soc_hw_rule_channels
, dai
,
902 SNDRV_PCM_HW_PARAM_RATE
, -1);
906 * call rsnd_dai_call without spinlock
908 ret
= rsnd_dai_call(nolock_start
, io
, priv
);
910 rsnd_dai_call(nolock_stop
, io
, priv
);
915 static void rsnd_soc_dai_shutdown(struct snd_pcm_substream
*substream
,
916 struct snd_soc_dai
*dai
)
918 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
919 struct rsnd_priv
*priv
= rsnd_rdai_to_priv(rdai
);
920 struct rsnd_dai_stream
*io
= rsnd_rdai_to_io(rdai
, substream
);
923 * call rsnd_dai_call without spinlock
925 rsnd_dai_call(nolock_stop
, io
, priv
);
928 static const struct snd_soc_dai_ops rsnd_soc_dai_ops
= {
929 .startup
= rsnd_soc_dai_startup
,
930 .shutdown
= rsnd_soc_dai_shutdown
,
931 .trigger
= rsnd_soc_dai_trigger
,
932 .set_fmt
= rsnd_soc_dai_set_fmt
,
933 .set_tdm_slot
= rsnd_soc_set_dai_tdm_slot
,
936 void rsnd_parse_connect_common(struct rsnd_dai
*rdai
,
937 struct rsnd_mod
* (*mod_get
)(struct rsnd_priv
*priv
, int id
),
938 struct device_node
*node
,
939 struct device_node
*playback
,
940 struct device_node
*capture
)
942 struct rsnd_priv
*priv
= rsnd_rdai_to_priv(rdai
);
943 struct device_node
*np
;
944 struct rsnd_mod
*mod
;
951 for_each_child_of_node(node
, np
) {
952 mod
= mod_get(priv
, i
);
954 rsnd_dai_connect(mod
, &rdai
->playback
, mod
->type
);
956 rsnd_dai_connect(mod
, &rdai
->capture
, mod
->type
);
963 static struct device_node
*rsnd_dai_of_node(struct rsnd_priv
*priv
,
966 struct device
*dev
= rsnd_priv_to_dev(priv
);
967 struct device_node
*np
= dev
->of_node
;
968 struct device_node
*dai_node
;
969 struct device_node
*ret
;
974 * parse both previous dai (= rcar_sound,dai), and
975 * graph dai (= ports/port)
977 dai_node
= of_get_child_by_name(np
, RSND_NODE_DAI
);
980 goto of_node_compatible
;
985 dai_node
= of_graph_get_next_endpoint(np
, NULL
);
994 of_node_put(dai_node
);
999 static void __rsnd_dai_probe(struct rsnd_priv
*priv
,
1000 struct device_node
*dai_np
,
1001 int dai_i
, int is_graph
)
1003 struct device_node
*playback
, *capture
;
1004 struct rsnd_dai_stream
*io_playback
;
1005 struct rsnd_dai_stream
*io_capture
;
1006 struct snd_soc_dai_driver
*drv
;
1007 struct rsnd_dai
*rdai
;
1008 struct device
*dev
= rsnd_priv_to_dev(priv
);
1011 rdai
= rsnd_rdai_get(priv
, dai_i
);
1012 drv
= priv
->daidrv
+ dai_i
;
1013 io_playback
= &rdai
->playback
;
1014 io_capture
= &rdai
->capture
;
1016 snprintf(rdai
->name
, RSND_DAI_NAME_SIZE
, "rsnd-dai.%d", dai_i
);
1019 drv
->name
= rdai
->name
;
1020 drv
->ops
= &rsnd_soc_dai_ops
;
1022 snprintf(rdai
->playback
.name
, RSND_DAI_NAME_SIZE
,
1023 "DAI%d Playback", dai_i
);
1024 drv
->playback
.rates
= RSND_RATES
;
1025 drv
->playback
.formats
= RSND_FMTS
;
1026 drv
->playback
.channels_min
= 2;
1027 drv
->playback
.channels_max
= 8;
1028 drv
->playback
.stream_name
= rdai
->playback
.name
;
1030 snprintf(rdai
->capture
.name
, RSND_DAI_NAME_SIZE
,
1031 "DAI%d Capture", dai_i
);
1032 drv
->capture
.rates
= RSND_RATES
;
1033 drv
->capture
.formats
= RSND_FMTS
;
1034 drv
->capture
.channels_min
= 2;
1035 drv
->capture
.channels_max
= 8;
1036 drv
->capture
.stream_name
= rdai
->capture
.name
;
1038 rdai
->playback
.rdai
= rdai
;
1039 rdai
->capture
.rdai
= rdai
;
1040 rsnd_rdai_channels_set(rdai
, 2); /* default 2ch */
1041 rsnd_rdai_ssi_lane_set(rdai
, 1); /* default 1lane */
1043 for (io_i
= 0;; io_i
++) {
1044 playback
= of_parse_phandle(dai_np
, "playback", io_i
);
1045 capture
= of_parse_phandle(dai_np
, "capture", io_i
);
1047 if (!playback
&& !capture
)
1050 rsnd_parse_connect_ssi(rdai
, playback
, capture
);
1051 rsnd_parse_connect_src(rdai
, playback
, capture
);
1052 rsnd_parse_connect_ctu(rdai
, playback
, capture
);
1053 rsnd_parse_connect_mix(rdai
, playback
, capture
);
1054 rsnd_parse_connect_dvc(rdai
, playback
, capture
);
1056 of_node_put(playback
);
1057 of_node_put(capture
);
1060 dev_dbg(dev
, "%s (%s/%s)\n", rdai
->name
,
1061 rsnd_io_to_mod_ssi(io_playback
) ? "play" : " -- ",
1062 rsnd_io_to_mod_ssi(io_capture
) ? "capture" : " -- ");
1065 static int rsnd_dai_probe(struct rsnd_priv
*priv
)
1067 struct device_node
*dai_node
;
1068 struct device_node
*dai_np
;
1069 struct snd_soc_dai_driver
*rdrv
;
1070 struct device
*dev
= rsnd_priv_to_dev(priv
);
1071 struct rsnd_dai
*rdai
;
1076 dai_node
= rsnd_dai_of_node(priv
, &is_graph
);
1078 nr
= of_graph_get_endpoint_count(dai_node
);
1080 nr
= of_get_child_count(dai_node
);
1085 rdrv
= devm_kzalloc(dev
, sizeof(*rdrv
) * nr
, GFP_KERNEL
);
1086 rdai
= devm_kzalloc(dev
, sizeof(*rdai
) * nr
, GFP_KERNEL
);
1091 priv
->daidrv
= rdrv
;
1099 for_each_endpoint_of_node(dai_node
, dai_np
) {
1100 __rsnd_dai_probe(priv
, dai_np
, dai_i
, is_graph
);
1101 rsnd_ssi_parse_hdmi_connection(priv
, dai_np
, dai_i
);
1105 for_each_child_of_node(dai_node
, dai_np
)
1106 __rsnd_dai_probe(priv
, dai_np
, dai_i
++, is_graph
);
1115 static int rsnd_hw_params(struct snd_pcm_substream
*substream
,
1116 struct snd_pcm_hw_params
*hw_params
)
1118 struct snd_soc_dai
*dai
= rsnd_substream_to_dai(substream
);
1119 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
1120 struct rsnd_dai_stream
*io
= rsnd_rdai_to_io(rdai
, substream
);
1123 ret
= rsnd_dai_call(hw_params
, io
, substream
, hw_params
);
1127 return snd_pcm_lib_malloc_pages(substream
,
1128 params_buffer_bytes(hw_params
));
1131 static snd_pcm_uframes_t
rsnd_pointer(struct snd_pcm_substream
*substream
)
1133 struct snd_soc_dai
*dai
= rsnd_substream_to_dai(substream
);
1134 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
1135 struct rsnd_dai_stream
*io
= rsnd_rdai_to_io(rdai
, substream
);
1136 snd_pcm_uframes_t pointer
= 0;
1138 rsnd_dai_call(pointer
, io
, &pointer
);
1143 static const struct snd_pcm_ops rsnd_pcm_ops
= {
1144 .ioctl
= snd_pcm_lib_ioctl
,
1145 .hw_params
= rsnd_hw_params
,
1146 .hw_free
= snd_pcm_lib_free_pages
,
1147 .pointer
= rsnd_pointer
,
1153 static int rsnd_kctrl_info(struct snd_kcontrol
*kctrl
,
1154 struct snd_ctl_elem_info
*uinfo
)
1156 struct rsnd_kctrl_cfg
*cfg
= snd_kcontrol_chip(kctrl
);
1159 uinfo
->type
= SNDRV_CTL_ELEM_TYPE_ENUMERATED
;
1160 uinfo
->count
= cfg
->size
;
1161 uinfo
->value
.enumerated
.items
= cfg
->max
;
1162 if (uinfo
->value
.enumerated
.item
>= cfg
->max
)
1163 uinfo
->value
.enumerated
.item
= cfg
->max
- 1;
1164 strlcpy(uinfo
->value
.enumerated
.name
,
1165 cfg
->texts
[uinfo
->value
.enumerated
.item
],
1166 sizeof(uinfo
->value
.enumerated
.name
));
1168 uinfo
->count
= cfg
->size
;
1169 uinfo
->value
.integer
.min
= 0;
1170 uinfo
->value
.integer
.max
= cfg
->max
;
1171 uinfo
->type
= (cfg
->max
== 1) ?
1172 SNDRV_CTL_ELEM_TYPE_BOOLEAN
:
1173 SNDRV_CTL_ELEM_TYPE_INTEGER
;
1179 static int rsnd_kctrl_get(struct snd_kcontrol
*kctrl
,
1180 struct snd_ctl_elem_value
*uc
)
1182 struct rsnd_kctrl_cfg
*cfg
= snd_kcontrol_chip(kctrl
);
1185 for (i
= 0; i
< cfg
->size
; i
++)
1187 uc
->value
.enumerated
.item
[i
] = cfg
->val
[i
];
1189 uc
->value
.integer
.value
[i
] = cfg
->val
[i
];
1194 static int rsnd_kctrl_put(struct snd_kcontrol
*kctrl
,
1195 struct snd_ctl_elem_value
*uc
)
1197 struct rsnd_kctrl_cfg
*cfg
= snd_kcontrol_chip(kctrl
);
1200 if (!cfg
->accept(cfg
->io
))
1203 for (i
= 0; i
< cfg
->size
; i
++) {
1205 change
|= (uc
->value
.enumerated
.item
[i
] != cfg
->val
[i
]);
1206 cfg
->val
[i
] = uc
->value
.enumerated
.item
[i
];
1208 change
|= (uc
->value
.integer
.value
[i
] != cfg
->val
[i
]);
1209 cfg
->val
[i
] = uc
->value
.integer
.value
[i
];
1213 if (change
&& cfg
->update
)
1214 cfg
->update(cfg
->io
, cfg
->mod
);
1219 int rsnd_kctrl_accept_anytime(struct rsnd_dai_stream
*io
)
1224 int rsnd_kctrl_accept_runtime(struct rsnd_dai_stream
*io
)
1226 struct snd_pcm_runtime
*runtime
= rsnd_io_to_runtime(io
);
1231 struct rsnd_kctrl_cfg
*rsnd_kctrl_init_m(struct rsnd_kctrl_cfg_m
*cfg
)
1233 cfg
->cfg
.val
= cfg
->val
;
1238 struct rsnd_kctrl_cfg
*rsnd_kctrl_init_s(struct rsnd_kctrl_cfg_s
*cfg
)
1240 cfg
->cfg
.val
= &cfg
->val
;
1245 int rsnd_kctrl_new(struct rsnd_mod
*mod
,
1246 struct rsnd_dai_stream
*io
,
1247 struct snd_soc_pcm_runtime
*rtd
,
1248 const unsigned char *name
,
1249 int (*accept
)(struct rsnd_dai_stream
*io
),
1250 void (*update
)(struct rsnd_dai_stream
*io
,
1251 struct rsnd_mod
*mod
),
1252 struct rsnd_kctrl_cfg
*cfg
,
1253 const char * const *texts
,
1257 struct snd_card
*card
= rtd
->card
->snd_card
;
1258 struct snd_kcontrol
*kctrl
;
1259 struct snd_kcontrol_new knew
= {
1260 .iface
= SNDRV_CTL_ELEM_IFACE_MIXER
,
1262 .info
= rsnd_kctrl_info
,
1264 .get
= rsnd_kctrl_get
,
1265 .put
= rsnd_kctrl_put
,
1269 if (size
> RSND_MAX_CHANNELS
)
1272 kctrl
= snd_ctl_new1(&knew
, cfg
);
1276 ret
= snd_ctl_add(card
, kctrl
);
1283 cfg
->accept
= accept
;
1284 cfg
->update
= update
;
1297 #define PREALLOC_BUFFER (32 * 1024)
1298 #define PREALLOC_BUFFER_MAX (32 * 1024)
1300 static int rsnd_pcm_new(struct snd_soc_pcm_runtime
*rtd
)
1302 struct snd_soc_dai
*dai
= rtd
->cpu_dai
;
1303 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
1306 ret
= rsnd_dai_call(pcm_new
, &rdai
->playback
, rtd
);
1310 ret
= rsnd_dai_call(pcm_new
, &rdai
->capture
, rtd
);
1314 return snd_pcm_lib_preallocate_pages_for_all(
1316 SNDRV_DMA_TYPE_CONTINUOUS
,
1317 snd_dma_continuous_data(GFP_KERNEL
),
1318 PREALLOC_BUFFER
, PREALLOC_BUFFER_MAX
);
1321 static const struct snd_soc_platform_driver rsnd_soc_platform
= {
1322 .ops
= &rsnd_pcm_ops
,
1323 .pcm_new
= rsnd_pcm_new
,
1326 static const struct snd_soc_component_driver rsnd_soc_component
= {
1330 static int rsnd_rdai_continuance_probe(struct rsnd_priv
*priv
,
1331 struct rsnd_dai_stream
*io
)
1335 ret
= rsnd_dai_call(probe
, io
, priv
);
1336 if (ret
== -EAGAIN
) {
1337 struct rsnd_mod
*ssi_mod
= rsnd_io_to_mod_ssi(io
);
1338 struct rsnd_mod
*mod
;
1342 * Fallback to PIO mode
1346 * call "remove" for SSI/SRC/DVC
1347 * SSI will be switch to PIO mode if it was DMA mode
1350 * rsnd_ssi_fallback()
1352 rsnd_dai_call(remove
, io
, priv
);
1355 * remove all mod from io
1356 * and, re connect ssi
1358 for_each_rsnd_mod(i
, mod
, io
)
1359 rsnd_dai_disconnect(mod
, io
, i
);
1360 rsnd_dai_connect(ssi_mod
, io
, RSND_MOD_SSI
);
1365 rsnd_dai_call(fallback
, io
, priv
);
1369 * DAI has SSI which is PIO mode only now.
1371 ret
= rsnd_dai_call(probe
, io
, priv
);
1380 static int rsnd_probe(struct platform_device
*pdev
)
1382 struct rsnd_priv
*priv
;
1383 struct device
*dev
= &pdev
->dev
;
1384 struct rsnd_dai
*rdai
;
1385 int (*probe_func
[])(struct rsnd_priv
*priv
) = {
1403 priv
= devm_kzalloc(dev
, sizeof(*priv
), GFP_KERNEL
);
1408 priv
->flags
= (unsigned long)of_device_get_match_data(dev
);
1409 spin_lock_init(&priv
->lock
);
1414 for (i
= 0; i
< ARRAY_SIZE(probe_func
); i
++) {
1415 ret
= probe_func
[i
](priv
);
1420 for_each_rsnd_dai(rdai
, priv
, i
) {
1421 ret
= rsnd_rdai_continuance_probe(priv
, &rdai
->playback
);
1423 goto exit_snd_probe
;
1425 ret
= rsnd_rdai_continuance_probe(priv
, &rdai
->capture
);
1427 goto exit_snd_probe
;
1430 dev_set_drvdata(dev
, priv
);
1435 ret
= snd_soc_register_platform(dev
, &rsnd_soc_platform
);
1437 dev_err(dev
, "cannot snd soc register\n");
1441 ret
= snd_soc_register_component(dev
, &rsnd_soc_component
,
1442 priv
->daidrv
, rsnd_rdai_nr(priv
));
1444 dev_err(dev
, "cannot snd dai register\n");
1448 pm_runtime_enable(dev
);
1450 dev_info(dev
, "probed\n");
1454 snd_soc_unregister_platform(dev
);
1456 for_each_rsnd_dai(rdai
, priv
, i
) {
1457 rsnd_dai_call(remove
, &rdai
->playback
, priv
);
1458 rsnd_dai_call(remove
, &rdai
->capture
, priv
);
1464 static int rsnd_remove(struct platform_device
*pdev
)
1466 struct rsnd_priv
*priv
= dev_get_drvdata(&pdev
->dev
);
1467 struct rsnd_dai
*rdai
;
1468 void (*remove_func
[])(struct rsnd_priv
*priv
) = {
1480 pm_runtime_disable(&pdev
->dev
);
1482 for_each_rsnd_dai(rdai
, priv
, i
) {
1483 ret
|= rsnd_dai_call(remove
, &rdai
->playback
, priv
);
1484 ret
|= rsnd_dai_call(remove
, &rdai
->capture
, priv
);
1487 for (i
= 0; i
< ARRAY_SIZE(remove_func
); i
++)
1488 remove_func
[i
](priv
);
1490 snd_soc_unregister_component(&pdev
->dev
);
1491 snd_soc_unregister_platform(&pdev
->dev
);
1496 static int rsnd_suspend(struct device
*dev
)
1498 struct rsnd_priv
*priv
= dev_get_drvdata(dev
);
1500 rsnd_adg_clk_disable(priv
);
1505 static int rsnd_resume(struct device
*dev
)
1507 struct rsnd_priv
*priv
= dev_get_drvdata(dev
);
1509 rsnd_adg_clk_enable(priv
);
1514 static const struct dev_pm_ops rsnd_pm_ops
= {
1515 .suspend
= rsnd_suspend
,
1516 .resume
= rsnd_resume
,
1519 static struct platform_driver rsnd_driver
= {
1521 .name
= "rcar_sound",
1523 .of_match_table
= rsnd_of_match
,
1525 .probe
= rsnd_probe
,
1526 .remove
= rsnd_remove
,
1528 module_platform_driver(rsnd_driver
);
1530 MODULE_LICENSE("GPL");
1531 MODULE_DESCRIPTION("Renesas R-Car audio driver");
1532 MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
1533 MODULE_ALIAS("platform:rcar-pcm-audio");