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 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
);
114 void rsnd_mod_make_sure(struct rsnd_mod
*mod
, enum rsnd_mod_type type
)
116 if (mod
->type
!= type
) {
117 struct rsnd_priv
*priv
= rsnd_mod_to_priv(mod
);
118 struct device
*dev
= rsnd_priv_to_dev(priv
);
120 dev_warn(dev
, "%s[%d] is not your expected module\n",
121 rsnd_mod_name(mod
), rsnd_mod_id(mod
));
126 char *rsnd_mod_name(struct rsnd_mod
*mod
)
128 if (!mod
|| !mod
->ops
)
131 return mod
->ops
->name
;
134 struct dma_chan
*rsnd_mod_dma_req(struct rsnd_dai_stream
*io
,
135 struct rsnd_mod
*mod
)
137 if (!mod
|| !mod
->ops
|| !mod
->ops
->dma_req
)
140 return mod
->ops
->dma_req(io
, mod
);
143 u32
*rsnd_mod_get_status(struct rsnd_dai_stream
*io
,
144 struct rsnd_mod
*mod
,
145 enum rsnd_mod_type type
)
150 int rsnd_mod_init(struct rsnd_priv
*priv
,
151 struct rsnd_mod
*mod
,
152 struct rsnd_mod_ops
*ops
,
154 u32
* (*get_status
)(struct rsnd_dai_stream
*io
,
155 struct rsnd_mod
*mod
,
156 enum rsnd_mod_type type
),
157 enum rsnd_mod_type type
,
160 int ret
= clk_prepare(clk
);
170 mod
->get_status
= get_status
;
175 void rsnd_mod_quit(struct rsnd_mod
*mod
)
178 clk_unprepare(mod
->clk
);
182 void rsnd_mod_interrupt(struct rsnd_mod
*mod
,
183 void (*callback
)(struct rsnd_mod
*mod
,
184 struct rsnd_dai_stream
*io
))
186 struct rsnd_priv
*priv
= rsnd_mod_to_priv(mod
);
187 struct rsnd_dai_stream
*io
;
188 struct rsnd_dai
*rdai
;
191 for_each_rsnd_dai(rdai
, priv
, i
) {
192 io
= &rdai
->playback
;
193 if (mod
== io
->mod
[mod
->type
])
197 if (mod
== io
->mod
[mod
->type
])
202 int rsnd_io_is_working(struct rsnd_dai_stream
*io
)
204 /* see rsnd_dai_stream_init/quit() */
205 return !!io
->substream
;
208 void rsnd_set_slot(struct rsnd_dai
*rdai
,
212 rdai
->slots_num
= num
;
215 int rsnd_get_slot(struct rsnd_dai_stream
*io
)
217 struct rsnd_dai
*rdai
= rsnd_io_to_rdai(io
);
222 int rsnd_get_slot_num(struct rsnd_dai_stream
*io
)
224 struct rsnd_dai
*rdai
= rsnd_io_to_rdai(io
);
226 return rdai
->slots_num
;
229 int rsnd_runtime_channel_original(struct rsnd_dai_stream
*io
)
231 struct snd_pcm_runtime
*runtime
= rsnd_io_to_runtime(io
);
233 return runtime
->channels
;
236 int rsnd_runtime_channel_after_ctu(struct rsnd_dai_stream
*io
)
238 int chan
= rsnd_runtime_channel_original(io
);
239 struct rsnd_mod
*ctu_mod
= rsnd_io_to_mod_ctu(io
);
242 u32 converted_chan
= rsnd_ctu_converted_channel(ctu_mod
);
245 return converted_chan
;
251 int rsnd_runtime_channel_for_ssi(struct rsnd_dai_stream
*io
)
253 int chan
= rsnd_io_is_play(io
) ?
254 rsnd_runtime_channel_after_ctu(io
) :
255 rsnd_runtime_channel_original(io
);
258 if (rsnd_runtime_is_ssi_multi(io
))
259 chan
/= rsnd_get_slot_num(io
);
261 /* TDM Extend Mode needs 8ch */
268 int rsnd_runtime_is_ssi_multi(struct rsnd_dai_stream
*io
)
270 int slots
= rsnd_get_slot_num(io
);
271 int chan
= rsnd_io_is_play(io
) ?
272 rsnd_runtime_channel_after_ctu(io
) :
273 rsnd_runtime_channel_original(io
);
275 return (chan
>= 6) && (slots
> 1);
278 int rsnd_runtime_is_ssi_tdm(struct rsnd_dai_stream
*io
)
280 return rsnd_runtime_channel_for_ssi(io
) >= 6;
286 u32
rsnd_get_adinr_bit(struct rsnd_mod
*mod
, struct rsnd_dai_stream
*io
)
288 struct rsnd_priv
*priv
= rsnd_mod_to_priv(mod
);
289 struct snd_pcm_runtime
*runtime
= rsnd_io_to_runtime(io
);
290 struct device
*dev
= rsnd_priv_to_dev(priv
);
292 switch (runtime
->sample_bits
) {
299 dev_warn(dev
, "not supported sample bits\n");
307 u32
rsnd_get_dalign(struct rsnd_mod
*mod
, struct rsnd_dai_stream
*io
)
309 struct rsnd_mod
*ssi
= rsnd_io_to_mod_ssi(io
);
310 struct rsnd_mod
*target
;
311 struct snd_pcm_runtime
*runtime
= rsnd_io_to_runtime(io
);
312 u32 val
= 0x76543210;
315 if (rsnd_io_is_play(io
)) {
316 struct rsnd_mod
*src
= rsnd_io_to_mod_src(io
);
318 target
= src
? src
: ssi
;
320 struct rsnd_mod
*cmd
= rsnd_io_to_mod_cmd(io
);
322 target
= cmd
? cmd
: ssi
;
325 mask
<<= runtime
->channels
* 4;
328 switch (runtime
->sample_bits
) {
330 val
|= 0x67452301 & ~mask
;
333 val
|= 0x76543210 & ~mask
;
338 * exchange channeles on SRC if possible,
339 * otherwise, R/L volume settings on DVC
340 * changes inverted channels
351 #define rsnd_mod_call(idx, io, func, param...) \
353 struct rsnd_priv *priv = rsnd_mod_to_priv(mod); \
354 struct rsnd_mod *mod = (io)->mod[idx]; \
355 struct device *dev = rsnd_priv_to_dev(priv); \
356 u32 *status = mod->get_status(io, mod, idx); \
357 u32 mask = 0xF << __rsnd_mod_shift_##func; \
358 u8 val = (*status >> __rsnd_mod_shift_##func) & 0xF; \
359 u8 add = ((val + __rsnd_mod_add_##func) & 0xF); \
361 int call = (val == __rsnd_mod_call_##func) && (mod)->ops->func; \
365 *status = (*status & ~mask) + \
366 (add << __rsnd_mod_shift_##func); \
367 dev_dbg(dev, "%s[%d]\t0x%08x %s\n", \
368 rsnd_mod_name(mod), rsnd_mod_id(mod), \
369 *status, call ? #func : ""); \
371 ret = (mod)->ops->func(mod, io, param); \
373 dev_dbg(dev, "%s[%d] : rsnd_mod_call error %d\n", \
374 rsnd_mod_name(mod), rsnd_mod_id(mod), ret); \
378 static enum rsnd_mod_type rsnd_mod_sequence
[][RSND_MOD_MAX
] = {
412 #define rsnd_dai_call(fn, io, param...) \
414 struct rsnd_mod *mod; \
415 int type, is_play = rsnd_io_is_play(io); \
417 for (i = 0; i < RSND_MOD_MAX; i++) { \
418 type = rsnd_mod_sequence[is_play][i]; \
419 mod = (io)->mod[type]; \
422 ret |= rsnd_mod_call(type, io, fn, param); \
427 int rsnd_dai_connect(struct rsnd_mod
*mod
,
428 struct rsnd_dai_stream
*io
,
429 enum rsnd_mod_type type
)
431 struct rsnd_priv
*priv
;
437 if (io
->mod
[type
] == mod
)
443 priv
= rsnd_mod_to_priv(mod
);
444 dev
= rsnd_priv_to_dev(priv
);
448 dev_dbg(dev
, "%s[%d] is connected to io (%s)\n",
449 rsnd_mod_name(mod
), rsnd_mod_id(mod
),
450 rsnd_io_is_play(io
) ? "Playback" : "Capture");
455 static void rsnd_dai_disconnect(struct rsnd_mod
*mod
,
456 struct rsnd_dai_stream
*io
,
457 enum rsnd_mod_type type
)
459 io
->mod
[type
] = NULL
;
462 struct rsnd_dai
*rsnd_rdai_get(struct rsnd_priv
*priv
, int id
)
464 if ((id
< 0) || (id
>= rsnd_rdai_nr(priv
)))
467 return priv
->rdai
+ id
;
470 #define rsnd_dai_to_priv(dai) snd_soc_dai_get_drvdata(dai)
471 static struct rsnd_dai
*rsnd_dai_to_rdai(struct snd_soc_dai
*dai
)
473 struct rsnd_priv
*priv
= rsnd_dai_to_priv(dai
);
475 return rsnd_rdai_get(priv
, dai
->id
);
479 * rsnd_soc_dai functions
481 int rsnd_dai_pointer_offset(struct rsnd_dai_stream
*io
, int additional
)
483 struct snd_pcm_substream
*substream
= io
->substream
;
484 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
485 int pos
= io
->byte_pos
+ additional
;
487 pos
%= (runtime
->periods
* io
->byte_per_period
);
492 bool rsnd_dai_pointer_update(struct rsnd_dai_stream
*io
, int byte
)
494 io
->byte_pos
+= byte
;
496 if (io
->byte_pos
>= io
->next_period_byte
) {
497 struct snd_pcm_substream
*substream
= io
->substream
;
498 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
501 io
->next_period_byte
+= io
->byte_per_period
;
503 if (io
->period_pos
>= runtime
->periods
) {
506 io
->next_period_byte
= io
->byte_per_period
;
515 void rsnd_dai_period_elapsed(struct rsnd_dai_stream
*io
)
517 struct snd_pcm_substream
*substream
= io
->substream
;
520 * this function should be called...
522 * - if rsnd_dai_pointer_update() returns true
523 * - without spin lock
526 snd_pcm_period_elapsed(substream
);
529 static void rsnd_dai_stream_init(struct rsnd_dai_stream
*io
,
530 struct snd_pcm_substream
*substream
)
532 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
534 io
->substream
= substream
;
537 io
->byte_per_period
= runtime
->period_size
*
539 samples_to_bytes(runtime
, 1);
540 io
->next_period_byte
= io
->byte_per_period
;
543 static void rsnd_dai_stream_quit(struct rsnd_dai_stream
*io
)
545 io
->substream
= NULL
;
549 struct snd_soc_dai
*rsnd_substream_to_dai(struct snd_pcm_substream
*substream
)
551 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
557 struct rsnd_dai_stream
*rsnd_rdai_to_io(struct rsnd_dai
*rdai
,
558 struct snd_pcm_substream
*substream
)
560 if (substream
->stream
== SNDRV_PCM_STREAM_PLAYBACK
)
561 return &rdai
->playback
;
563 return &rdai
->capture
;
566 static int rsnd_soc_dai_trigger(struct snd_pcm_substream
*substream
, int cmd
,
567 struct snd_soc_dai
*dai
)
569 struct rsnd_priv
*priv
= rsnd_dai_to_priv(dai
);
570 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
571 struct rsnd_dai_stream
*io
= rsnd_rdai_to_io(rdai
, substream
);
575 spin_lock_irqsave(&priv
->lock
, flags
);
578 case SNDRV_PCM_TRIGGER_START
:
579 rsnd_dai_stream_init(io
, substream
);
581 ret
= rsnd_dai_call(init
, io
, priv
);
583 goto dai_trigger_end
;
585 ret
= rsnd_dai_call(start
, io
, priv
);
587 goto dai_trigger_end
;
589 ret
= rsnd_dai_call(irq
, io
, priv
, 1);
591 goto dai_trigger_end
;
594 case SNDRV_PCM_TRIGGER_STOP
:
595 ret
= rsnd_dai_call(irq
, io
, priv
, 0);
597 ret
|= rsnd_dai_call(stop
, io
, priv
);
599 ret
|= rsnd_dai_call(quit
, io
, priv
);
601 rsnd_dai_stream_quit(io
);
608 spin_unlock_irqrestore(&priv
->lock
, flags
);
613 static int rsnd_soc_dai_set_fmt(struct snd_soc_dai
*dai
, unsigned int fmt
)
615 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
617 /* set master/slave audio interface */
618 switch (fmt
& SND_SOC_DAIFMT_MASTER_MASK
) {
619 case SND_SOC_DAIFMT_CBM_CFM
:
620 rdai
->clk_master
= 0;
622 case SND_SOC_DAIFMT_CBS_CFS
:
623 rdai
->clk_master
= 1; /* codec is slave, cpu is master */
630 switch (fmt
& SND_SOC_DAIFMT_FORMAT_MASK
) {
631 case SND_SOC_DAIFMT_I2S
:
633 rdai
->data_alignment
= 0;
634 rdai
->frm_clk_inv
= 0;
636 case SND_SOC_DAIFMT_LEFT_J
:
638 rdai
->data_alignment
= 0;
639 rdai
->frm_clk_inv
= 1;
641 case SND_SOC_DAIFMT_RIGHT_J
:
643 rdai
->data_alignment
= 1;
644 rdai
->frm_clk_inv
= 1;
648 /* set clock inversion */
649 switch (fmt
& SND_SOC_DAIFMT_INV_MASK
) {
650 case SND_SOC_DAIFMT_NB_IF
:
651 rdai
->bit_clk_inv
= rdai
->bit_clk_inv
;
652 rdai
->frm_clk_inv
= !rdai
->frm_clk_inv
;
654 case SND_SOC_DAIFMT_IB_NF
:
655 rdai
->bit_clk_inv
= !rdai
->bit_clk_inv
;
656 rdai
->frm_clk_inv
= rdai
->frm_clk_inv
;
658 case SND_SOC_DAIFMT_IB_IF
:
659 rdai
->bit_clk_inv
= !rdai
->bit_clk_inv
;
660 rdai
->frm_clk_inv
= !rdai
->frm_clk_inv
;
662 case SND_SOC_DAIFMT_NB_NF
:
670 static int rsnd_soc_set_dai_tdm_slot(struct snd_soc_dai
*dai
,
671 u32 tx_mask
, u32 rx_mask
,
672 int slots
, int slot_width
)
674 struct rsnd_priv
*priv
= rsnd_dai_to_priv(dai
);
675 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
676 struct device
*dev
= rsnd_priv_to_dev(priv
);
680 /* TDM Extend Mode */
681 rsnd_set_slot(rdai
, slots
, 1);
684 dev_err(dev
, "unsupported TDM slots (%d)\n", slots
);
691 static const struct snd_soc_dai_ops rsnd_soc_dai_ops
= {
692 .trigger
= rsnd_soc_dai_trigger
,
693 .set_fmt
= rsnd_soc_dai_set_fmt
,
694 .set_tdm_slot
= rsnd_soc_set_dai_tdm_slot
,
697 void rsnd_parse_connect_common(struct rsnd_dai
*rdai
,
698 struct rsnd_mod
* (*mod_get
)(struct rsnd_priv
*priv
, int id
),
699 struct device_node
*node
,
700 struct device_node
*playback
,
701 struct device_node
*capture
)
703 struct rsnd_priv
*priv
= rsnd_rdai_to_priv(rdai
);
704 struct device_node
*np
;
705 struct rsnd_mod
*mod
;
712 for_each_child_of_node(node
, np
) {
713 mod
= mod_get(priv
, i
);
715 rsnd_dai_connect(mod
, &rdai
->playback
, mod
->type
);
717 rsnd_dai_connect(mod
, &rdai
->capture
, mod
->type
);
724 static int rsnd_dai_probe(struct rsnd_priv
*priv
)
726 struct device_node
*dai_node
;
727 struct device_node
*dai_np
;
728 struct device_node
*playback
, *capture
;
729 struct rsnd_dai_stream
*io_playback
;
730 struct rsnd_dai_stream
*io_capture
;
731 struct snd_soc_dai_driver
*rdrv
, *drv
;
732 struct rsnd_dai
*rdai
;
733 struct device
*dev
= rsnd_priv_to_dev(priv
);
737 dai_node
= rsnd_dai_of_node(priv
);
738 nr
= of_get_child_count(dai_node
);
741 goto rsnd_dai_probe_done
;
744 rdrv
= devm_kzalloc(dev
, sizeof(*rdrv
) * nr
, GFP_KERNEL
);
745 rdai
= devm_kzalloc(dev
, sizeof(*rdai
) * nr
, GFP_KERNEL
);
746 if (!rdrv
|| !rdai
) {
748 goto rsnd_dai_probe_done
;
759 for_each_child_of_node(dai_node
, dai_np
) {
760 rdai
= rsnd_rdai_get(priv
, dai_i
);
762 io_playback
= &rdai
->playback
;
763 io_capture
= &rdai
->capture
;
765 snprintf(rdai
->name
, RSND_DAI_NAME_SIZE
, "rsnd-dai.%d", dai_i
);
768 drv
->name
= rdai
->name
;
769 drv
->ops
= &rsnd_soc_dai_ops
;
771 snprintf(rdai
->playback
.name
, RSND_DAI_NAME_SIZE
,
772 "DAI%d Playback", dai_i
);
773 drv
->playback
.rates
= RSND_RATES
;
774 drv
->playback
.formats
= RSND_FMTS
;
775 drv
->playback
.channels_min
= 2;
776 drv
->playback
.channels_max
= 6;
777 drv
->playback
.stream_name
= rdai
->playback
.name
;
779 snprintf(rdai
->capture
.name
, RSND_DAI_NAME_SIZE
,
780 "DAI%d Capture", dai_i
);
781 drv
->capture
.rates
= RSND_RATES
;
782 drv
->capture
.formats
= RSND_FMTS
;
783 drv
->capture
.channels_min
= 2;
784 drv
->capture
.channels_max
= 6;
785 drv
->capture
.stream_name
= rdai
->capture
.name
;
787 rdai
->playback
.rdai
= rdai
;
788 rdai
->capture
.rdai
= rdai
;
789 rsnd_set_slot(rdai
, 2, 1); /* default */
791 for (io_i
= 0;; io_i
++) {
792 playback
= of_parse_phandle(dai_np
, "playback", io_i
);
793 capture
= of_parse_phandle(dai_np
, "capture", io_i
);
795 if (!playback
&& !capture
)
798 rsnd_parse_connect_ssi(rdai
, playback
, capture
);
799 rsnd_parse_connect_src(rdai
, playback
, capture
);
800 rsnd_parse_connect_ctu(rdai
, playback
, capture
);
801 rsnd_parse_connect_mix(rdai
, playback
, capture
);
802 rsnd_parse_connect_dvc(rdai
, playback
, capture
);
804 of_node_put(playback
);
805 of_node_put(capture
);
810 dev_dbg(dev
, "%s (%s/%s)\n", rdai
->name
,
811 rsnd_io_to_mod_ssi(io_playback
) ? "play" : " -- ",
812 rsnd_io_to_mod_ssi(io_capture
) ? "capture" : " -- ");
818 of_node_put(dai_node
);
826 static struct snd_pcm_hardware rsnd_pcm_hardware
= {
827 .info
= SNDRV_PCM_INFO_INTERLEAVED
|
828 SNDRV_PCM_INFO_MMAP
|
829 SNDRV_PCM_INFO_MMAP_VALID
,
830 .buffer_bytes_max
= 64 * 1024,
831 .period_bytes_min
= 32,
832 .period_bytes_max
= 8192,
838 static int rsnd_pcm_open(struct snd_pcm_substream
*substream
)
840 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
843 snd_soc_set_runtime_hwparams(substream
, &rsnd_pcm_hardware
);
845 ret
= snd_pcm_hw_constraint_integer(runtime
,
846 SNDRV_PCM_HW_PARAM_PERIODS
);
851 static int rsnd_hw_params(struct snd_pcm_substream
*substream
,
852 struct snd_pcm_hw_params
*hw_params
)
854 struct snd_soc_dai
*dai
= rsnd_substream_to_dai(substream
);
855 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
856 struct rsnd_dai_stream
*io
= rsnd_rdai_to_io(rdai
, substream
);
859 ret
= rsnd_dai_call(hw_params
, io
, substream
, hw_params
);
863 return snd_pcm_lib_malloc_pages(substream
,
864 params_buffer_bytes(hw_params
));
867 static snd_pcm_uframes_t
rsnd_pointer(struct snd_pcm_substream
*substream
)
869 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
870 struct snd_soc_dai
*dai
= rsnd_substream_to_dai(substream
);
871 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
872 struct rsnd_dai_stream
*io
= rsnd_rdai_to_io(rdai
, substream
);
874 return bytes_to_frames(runtime
, io
->byte_pos
);
877 static struct snd_pcm_ops rsnd_pcm_ops
= {
878 .open
= rsnd_pcm_open
,
879 .ioctl
= snd_pcm_lib_ioctl
,
880 .hw_params
= rsnd_hw_params
,
881 .hw_free
= snd_pcm_lib_free_pages
,
882 .pointer
= rsnd_pointer
,
888 #define kcontrol_to_cfg(kctrl) ((struct rsnd_kctrl_cfg *)kctrl->private_value)
889 static int rsnd_kctrl_info(struct snd_kcontrol
*kctrl
,
890 struct snd_ctl_elem_info
*uinfo
)
892 struct rsnd_kctrl_cfg
*cfg
= kcontrol_to_cfg(kctrl
);
895 uinfo
->type
= SNDRV_CTL_ELEM_TYPE_ENUMERATED
;
896 uinfo
->count
= cfg
->size
;
897 uinfo
->value
.enumerated
.items
= cfg
->max
;
898 if (uinfo
->value
.enumerated
.item
>= cfg
->max
)
899 uinfo
->value
.enumerated
.item
= cfg
->max
- 1;
900 strlcpy(uinfo
->value
.enumerated
.name
,
901 cfg
->texts
[uinfo
->value
.enumerated
.item
],
902 sizeof(uinfo
->value
.enumerated
.name
));
904 uinfo
->count
= cfg
->size
;
905 uinfo
->value
.integer
.min
= 0;
906 uinfo
->value
.integer
.max
= cfg
->max
;
907 uinfo
->type
= (cfg
->max
== 1) ?
908 SNDRV_CTL_ELEM_TYPE_BOOLEAN
:
909 SNDRV_CTL_ELEM_TYPE_INTEGER
;
915 static int rsnd_kctrl_get(struct snd_kcontrol
*kctrl
,
916 struct snd_ctl_elem_value
*uc
)
918 struct rsnd_kctrl_cfg
*cfg
= kcontrol_to_cfg(kctrl
);
921 for (i
= 0; i
< cfg
->size
; i
++)
923 uc
->value
.enumerated
.item
[i
] = cfg
->val
[i
];
925 uc
->value
.integer
.value
[i
] = cfg
->val
[i
];
930 static int rsnd_kctrl_put(struct snd_kcontrol
*kctrl
,
931 struct snd_ctl_elem_value
*uc
)
933 struct rsnd_mod
*mod
= snd_kcontrol_chip(kctrl
);
934 struct rsnd_kctrl_cfg
*cfg
= kcontrol_to_cfg(kctrl
);
937 for (i
= 0; i
< cfg
->size
; i
++) {
939 change
|= (uc
->value
.enumerated
.item
[i
] != cfg
->val
[i
]);
940 cfg
->val
[i
] = uc
->value
.enumerated
.item
[i
];
942 change
|= (uc
->value
.integer
.value
[i
] != cfg
->val
[i
]);
943 cfg
->val
[i
] = uc
->value
.integer
.value
[i
];
947 if (change
&& cfg
->update
)
948 cfg
->update(cfg
->io
, mod
);
953 static int __rsnd_kctrl_new(struct rsnd_mod
*mod
,
954 struct rsnd_dai_stream
*io
,
955 struct snd_soc_pcm_runtime
*rtd
,
956 const unsigned char *name
,
957 struct rsnd_kctrl_cfg
*cfg
,
958 void (*update
)(struct rsnd_dai_stream
*io
,
959 struct rsnd_mod
*mod
))
961 struct snd_card
*card
= rtd
->card
->snd_card
;
962 struct snd_kcontrol
*kctrl
;
963 struct snd_kcontrol_new knew
= {
964 .iface
= SNDRV_CTL_ELEM_IFACE_MIXER
,
966 .info
= rsnd_kctrl_info
,
968 .get
= rsnd_kctrl_get
,
969 .put
= rsnd_kctrl_put
,
970 .private_value
= (unsigned long)cfg
,
974 kctrl
= snd_ctl_new1(&knew
, mod
);
978 ret
= snd_ctl_add(card
, kctrl
);
980 snd_ctl_free_one(kctrl
);
984 cfg
->update
= update
;
992 void _rsnd_kctrl_remove(struct rsnd_kctrl_cfg
*cfg
)
994 snd_ctl_remove(cfg
->card
, cfg
->kctrl
);
997 int rsnd_kctrl_new_m(struct rsnd_mod
*mod
,
998 struct rsnd_dai_stream
*io
,
999 struct snd_soc_pcm_runtime
*rtd
,
1000 const unsigned char *name
,
1001 void (*update
)(struct rsnd_dai_stream
*io
,
1002 struct rsnd_mod
*mod
),
1003 struct rsnd_kctrl_cfg_m
*_cfg
,
1007 if (ch_size
> RSND_MAX_CHANNELS
)
1010 _cfg
->cfg
.max
= max
;
1011 _cfg
->cfg
.size
= ch_size
;
1012 _cfg
->cfg
.val
= _cfg
->val
;
1013 return __rsnd_kctrl_new(mod
, io
, rtd
, name
, &_cfg
->cfg
, update
);
1016 int rsnd_kctrl_new_s(struct rsnd_mod
*mod
,
1017 struct rsnd_dai_stream
*io
,
1018 struct snd_soc_pcm_runtime
*rtd
,
1019 const unsigned char *name
,
1020 void (*update
)(struct rsnd_dai_stream
*io
,
1021 struct rsnd_mod
*mod
),
1022 struct rsnd_kctrl_cfg_s
*_cfg
,
1025 _cfg
->cfg
.max
= max
;
1027 _cfg
->cfg
.val
= &_cfg
->val
;
1028 return __rsnd_kctrl_new(mod
, io
, rtd
, name
, &_cfg
->cfg
, update
);
1031 int rsnd_kctrl_new_e(struct rsnd_mod
*mod
,
1032 struct rsnd_dai_stream
*io
,
1033 struct snd_soc_pcm_runtime
*rtd
,
1034 const unsigned char *name
,
1035 struct rsnd_kctrl_cfg_s
*_cfg
,
1036 void (*update
)(struct rsnd_dai_stream
*io
,
1037 struct rsnd_mod
*mod
),
1038 const char * const *texts
,
1041 _cfg
->cfg
.max
= max
;
1043 _cfg
->cfg
.val
= &_cfg
->val
;
1044 _cfg
->cfg
.texts
= texts
;
1045 return __rsnd_kctrl_new(mod
, io
, rtd
, name
, &_cfg
->cfg
, update
);
1052 #define PREALLOC_BUFFER (32 * 1024)
1053 #define PREALLOC_BUFFER_MAX (32 * 1024)
1055 static int rsnd_pcm_new(struct snd_soc_pcm_runtime
*rtd
)
1057 struct snd_soc_dai
*dai
= rtd
->cpu_dai
;
1058 struct rsnd_dai
*rdai
= rsnd_dai_to_rdai(dai
);
1061 ret
= rsnd_dai_call(pcm_new
, &rdai
->playback
, rtd
);
1065 ret
= rsnd_dai_call(pcm_new
, &rdai
->capture
, rtd
);
1069 return snd_pcm_lib_preallocate_pages_for_all(
1072 rtd
->card
->snd_card
->dev
,
1073 PREALLOC_BUFFER
, PREALLOC_BUFFER_MAX
);
1076 static struct snd_soc_platform_driver rsnd_soc_platform
= {
1077 .ops
= &rsnd_pcm_ops
,
1078 .pcm_new
= rsnd_pcm_new
,
1081 static const struct snd_soc_component_driver rsnd_soc_component
= {
1085 static int rsnd_rdai_continuance_probe(struct rsnd_priv
*priv
,
1086 struct rsnd_dai_stream
*io
)
1090 ret
= rsnd_dai_call(probe
, io
, priv
);
1091 if (ret
== -EAGAIN
) {
1092 struct rsnd_mod
*ssi_mod
= rsnd_io_to_mod_ssi(io
);
1096 * Fallback to PIO mode
1100 * call "remove" for SSI/SRC/DVC
1101 * SSI will be switch to PIO mode if it was DMA mode
1104 * rsnd_ssi_fallback()
1106 rsnd_dai_call(remove
, io
, priv
);
1109 * remove all mod from io
1110 * and, re connect ssi
1112 for (i
= 0; i
< RSND_MOD_MAX
; i
++)
1113 rsnd_dai_disconnect((io
)->mod
[i
], io
, i
);
1114 rsnd_dai_connect(ssi_mod
, io
, RSND_MOD_SSI
);
1119 rsnd_dai_call(fallback
, io
, priv
);
1123 * DAI has SSI which is PIO mode only now.
1125 ret
= rsnd_dai_call(probe
, io
, priv
);
1134 static int rsnd_probe(struct platform_device
*pdev
)
1136 struct rsnd_priv
*priv
;
1137 struct device
*dev
= &pdev
->dev
;
1138 struct rsnd_dai
*rdai
;
1139 int (*probe_func
[])(struct rsnd_priv
*priv
) = {
1157 priv
= devm_kzalloc(dev
, sizeof(*priv
), GFP_KERNEL
);
1159 dev_err(dev
, "priv allocate failed\n");
1164 priv
->flags
= (unsigned long)of_device_get_match_data(dev
);
1165 spin_lock_init(&priv
->lock
);
1170 for (i
= 0; i
< ARRAY_SIZE(probe_func
); i
++) {
1171 ret
= probe_func
[i
](priv
);
1176 for_each_rsnd_dai(rdai
, priv
, i
) {
1177 ret
= rsnd_rdai_continuance_probe(priv
, &rdai
->playback
);
1179 goto exit_snd_probe
;
1181 ret
= rsnd_rdai_continuance_probe(priv
, &rdai
->capture
);
1183 goto exit_snd_probe
;
1186 dev_set_drvdata(dev
, priv
);
1191 ret
= snd_soc_register_platform(dev
, &rsnd_soc_platform
);
1193 dev_err(dev
, "cannot snd soc register\n");
1197 ret
= snd_soc_register_component(dev
, &rsnd_soc_component
,
1198 priv
->daidrv
, rsnd_rdai_nr(priv
));
1200 dev_err(dev
, "cannot snd dai register\n");
1204 pm_runtime_enable(dev
);
1206 dev_info(dev
, "probed\n");
1210 snd_soc_unregister_platform(dev
);
1212 for_each_rsnd_dai(rdai
, priv
, i
) {
1213 rsnd_dai_call(remove
, &rdai
->playback
, priv
);
1214 rsnd_dai_call(remove
, &rdai
->capture
, priv
);
1220 static int rsnd_remove(struct platform_device
*pdev
)
1222 struct rsnd_priv
*priv
= dev_get_drvdata(&pdev
->dev
);
1223 struct rsnd_dai
*rdai
;
1224 void (*remove_func
[])(struct rsnd_priv
*priv
) = {
1236 pm_runtime_disable(&pdev
->dev
);
1238 for_each_rsnd_dai(rdai
, priv
, i
) {
1239 ret
|= rsnd_dai_call(remove
, &rdai
->playback
, priv
);
1240 ret
|= rsnd_dai_call(remove
, &rdai
->capture
, priv
);
1243 for (i
= 0; i
< ARRAY_SIZE(remove_func
); i
++)
1244 remove_func
[i
](priv
);
1246 snd_soc_unregister_component(&pdev
->dev
);
1247 snd_soc_unregister_platform(&pdev
->dev
);
1252 static struct platform_driver rsnd_driver
= {
1254 .name
= "rcar_sound",
1255 .of_match_table
= rsnd_of_match
,
1257 .probe
= rsnd_probe
,
1258 .remove
= rsnd_remove
,
1260 module_platform_driver(rsnd_driver
);
1262 MODULE_LICENSE("GPL");
1263 MODULE_DESCRIPTION("Renesas R-Car audio driver");
1264 MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
1265 MODULE_ALIAS("platform:rcar-pcm-audio");