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);
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 void rsnd_set_slot(struct rsnd_dai *rdai,
210 rdai->slots_num = num;
213 int rsnd_get_slot(struct rsnd_dai_stream *io)
215 struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
220 int rsnd_get_slot_num(struct rsnd_dai_stream *io)
222 struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
224 return rdai->slots_num;
227 int rsnd_runtime_channel_original(struct rsnd_dai_stream *io)
229 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
231 return runtime->channels;
234 int rsnd_runtime_channel_after_ctu(struct rsnd_dai_stream *io)
236 int chan = rsnd_runtime_channel_original(io);
237 struct rsnd_mod *ctu_mod = rsnd_io_to_mod_ctu(io);
240 u32 converted_chan = rsnd_ctu_converted_channel(ctu_mod);
243 return converted_chan;
249 int rsnd_runtime_channel_for_ssi(struct rsnd_dai_stream *io)
251 int chan = rsnd_io_is_play(io) ?
252 rsnd_runtime_channel_after_ctu(io) :
253 rsnd_runtime_channel_original(io);
256 if (rsnd_runtime_is_ssi_multi(io))
257 chan /= rsnd_get_slot_num(io);
259 /* TDM Extend Mode needs 8ch */
266 int rsnd_runtime_is_ssi_multi(struct rsnd_dai_stream *io)
268 int slots = rsnd_get_slot_num(io);
269 int chan = rsnd_io_is_play(io) ?
270 rsnd_runtime_channel_after_ctu(io) :
271 rsnd_runtime_channel_original(io);
273 return (chan >= 6) && (slots > 1);
276 int rsnd_runtime_is_ssi_tdm(struct rsnd_dai_stream *io)
278 return rsnd_runtime_channel_for_ssi(io) >= 6;
284 u32 rsnd_get_adinr_bit(struct rsnd_mod *mod, struct rsnd_dai_stream *io)
286 struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
287 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
288 struct device *dev = rsnd_priv_to_dev(priv);
290 switch (runtime->sample_bits) {
297 dev_warn(dev, "not supported sample bits\n");
305 u32 rsnd_get_dalign(struct rsnd_mod *mod, struct rsnd_dai_stream *io)
307 struct rsnd_mod *ssi = rsnd_io_to_mod_ssi(io);
308 struct rsnd_mod *target;
309 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
310 u32 val = 0x76543210;
313 if (rsnd_io_is_play(io)) {
314 struct rsnd_mod *src = rsnd_io_to_mod_src(io);
316 target = src ? src : ssi;
318 struct rsnd_mod *cmd = rsnd_io_to_mod_cmd(io);
320 target = cmd ? cmd : ssi;
323 mask <<= runtime->channels * 4;
326 switch (runtime->sample_bits) {
328 val |= 0x67452301 & ~mask;
331 val |= 0x76543210 & ~mask;
336 * exchange channeles on SRC if possible,
337 * otherwise, R/L volume settings on DVC
338 * changes inverted channels
349 #define rsnd_mod_call(idx, io, func, param...) \
351 struct rsnd_priv *priv = rsnd_mod_to_priv(mod); \
352 struct rsnd_mod *mod = (io)->mod[idx]; \
353 struct device *dev = rsnd_priv_to_dev(priv); \
354 u32 *status = mod->get_status(io, mod, idx); \
355 u32 mask = 0xF << __rsnd_mod_shift_##func; \
356 u8 val = (*status >> __rsnd_mod_shift_##func) & 0xF; \
357 u8 add = ((val + __rsnd_mod_add_##func) & 0xF); \
359 int call = (val == __rsnd_mod_call_##func) && (mod)->ops->func; \
363 *status = (*status & ~mask) + \
364 (add << __rsnd_mod_shift_##func); \
365 dev_dbg(dev, "%s[%d]\t0x%08x %s\n", \
366 rsnd_mod_name(mod), rsnd_mod_id(mod), \
367 *status, call ? #func : ""); \
369 ret = (mod)->ops->func(mod, io, param); \
371 dev_dbg(dev, "%s[%d] : rsnd_mod_call error %d\n", \
372 rsnd_mod_name(mod), rsnd_mod_id(mod), ret); \
376 static enum rsnd_mod_type rsnd_mod_sequence[][RSND_MOD_MAX] = {
410 #define rsnd_dai_call(fn, io, param...) \
412 struct rsnd_mod *mod; \
413 int type, is_play = rsnd_io_is_play(io); \
415 for (i = 0; i < RSND_MOD_MAX; i++) { \
416 type = rsnd_mod_sequence[is_play][i]; \
417 mod = (io)->mod[type]; \
420 ret |= rsnd_mod_call(type, io, fn, param); \
425 int rsnd_dai_connect(struct rsnd_mod *mod,
426 struct rsnd_dai_stream *io,
427 enum rsnd_mod_type type)
429 struct rsnd_priv *priv;
435 if (io->mod[type] == mod)
441 priv = rsnd_mod_to_priv(mod);
442 dev = rsnd_priv_to_dev(priv);
446 dev_dbg(dev, "%s[%d] is connected to io (%s)\n",
447 rsnd_mod_name(mod), rsnd_mod_id(mod),
448 rsnd_io_is_play(io) ? "Playback" : "Capture");
453 static void rsnd_dai_disconnect(struct rsnd_mod *mod,
454 struct rsnd_dai_stream *io,
455 enum rsnd_mod_type type)
457 io->mod[type] = NULL;
460 struct rsnd_dai *rsnd_rdai_get(struct rsnd_priv *priv, int id)
462 if ((id < 0) || (id >= rsnd_rdai_nr(priv)))
465 return priv->rdai + id;
468 #define rsnd_dai_to_priv(dai) snd_soc_dai_get_drvdata(dai)
469 static struct rsnd_dai *rsnd_dai_to_rdai(struct snd_soc_dai *dai)
471 struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
473 return rsnd_rdai_get(priv, dai->id);
477 * rsnd_soc_dai functions
479 int rsnd_dai_pointer_offset(struct rsnd_dai_stream *io, int additional)
481 struct snd_pcm_substream *substream = io->substream;
482 struct snd_pcm_runtime *runtime = substream->runtime;
483 int pos = io->byte_pos + additional;
485 pos %= (runtime->periods * io->byte_per_period);
490 bool rsnd_dai_pointer_update(struct rsnd_dai_stream *io, int byte)
492 io->byte_pos += byte;
494 if (io->byte_pos >= io->next_period_byte) {
495 struct snd_pcm_substream *substream = io->substream;
496 struct snd_pcm_runtime *runtime = substream->runtime;
499 io->next_period_byte += io->byte_per_period;
501 if (io->period_pos >= runtime->periods) {
504 io->next_period_byte = io->byte_per_period;
513 void rsnd_dai_period_elapsed(struct rsnd_dai_stream *io)
515 struct snd_pcm_substream *substream = io->substream;
518 * this function should be called...
520 * - if rsnd_dai_pointer_update() returns true
521 * - without spin lock
524 snd_pcm_period_elapsed(substream);
527 static void rsnd_dai_stream_init(struct rsnd_dai_stream *io,
528 struct snd_pcm_substream *substream)
530 struct snd_pcm_runtime *runtime = substream->runtime;
532 io->substream = substream;
535 io->byte_per_period = runtime->period_size *
537 samples_to_bytes(runtime, 1);
538 io->next_period_byte = io->byte_per_period;
541 static void rsnd_dai_stream_quit(struct rsnd_dai_stream *io)
543 io->substream = NULL;
547 struct snd_soc_dai *rsnd_substream_to_dai(struct snd_pcm_substream *substream)
549 struct snd_soc_pcm_runtime *rtd = substream->private_data;
555 struct rsnd_dai_stream *rsnd_rdai_to_io(struct rsnd_dai *rdai,
556 struct snd_pcm_substream *substream)
558 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
559 return &rdai->playback;
561 return &rdai->capture;
564 static int rsnd_soc_dai_trigger(struct snd_pcm_substream *substream, int cmd,
565 struct snd_soc_dai *dai)
567 struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
568 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
569 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
573 spin_lock_irqsave(&priv->lock, flags);
576 case SNDRV_PCM_TRIGGER_START:
577 rsnd_dai_stream_init(io, substream);
579 ret = rsnd_dai_call(init, io, priv);
581 goto dai_trigger_end;
583 ret = rsnd_dai_call(start, io, priv);
585 goto dai_trigger_end;
587 ret = rsnd_dai_call(irq, io, priv, 1);
589 goto dai_trigger_end;
592 case SNDRV_PCM_TRIGGER_STOP:
593 ret = rsnd_dai_call(irq, io, priv, 0);
595 ret |= rsnd_dai_call(stop, io, priv);
597 ret |= rsnd_dai_call(quit, io, priv);
599 rsnd_dai_stream_quit(io);
606 spin_unlock_irqrestore(&priv->lock, flags);
611 static int rsnd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
613 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
615 /* set master/slave audio interface */
616 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
617 case SND_SOC_DAIFMT_CBM_CFM:
618 rdai->clk_master = 0;
620 case SND_SOC_DAIFMT_CBS_CFS:
621 rdai->clk_master = 1; /* codec is slave, cpu is master */
628 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
629 case SND_SOC_DAIFMT_I2S:
631 rdai->data_alignment = 0;
632 rdai->frm_clk_inv = 0;
634 case SND_SOC_DAIFMT_LEFT_J:
636 rdai->data_alignment = 0;
637 rdai->frm_clk_inv = 1;
639 case SND_SOC_DAIFMT_RIGHT_J:
641 rdai->data_alignment = 1;
642 rdai->frm_clk_inv = 1;
646 /* set clock inversion */
647 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
648 case SND_SOC_DAIFMT_NB_IF:
649 rdai->bit_clk_inv = rdai->bit_clk_inv;
650 rdai->frm_clk_inv = !rdai->frm_clk_inv;
652 case SND_SOC_DAIFMT_IB_NF:
653 rdai->bit_clk_inv = !rdai->bit_clk_inv;
654 rdai->frm_clk_inv = rdai->frm_clk_inv;
656 case SND_SOC_DAIFMT_IB_IF:
657 rdai->bit_clk_inv = !rdai->bit_clk_inv;
658 rdai->frm_clk_inv = !rdai->frm_clk_inv;
660 case SND_SOC_DAIFMT_NB_NF:
668 static int rsnd_soc_set_dai_tdm_slot(struct snd_soc_dai *dai,
669 u32 tx_mask, u32 rx_mask,
670 int slots, int slot_width)
672 struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
673 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
674 struct device *dev = rsnd_priv_to_dev(priv);
678 /* TDM Extend Mode */
679 rsnd_set_slot(rdai, slots, 1);
682 dev_err(dev, "unsupported TDM slots (%d)\n", slots);
689 static const struct snd_soc_dai_ops rsnd_soc_dai_ops = {
690 .trigger = rsnd_soc_dai_trigger,
691 .set_fmt = rsnd_soc_dai_set_fmt,
692 .set_tdm_slot = rsnd_soc_set_dai_tdm_slot,
695 void rsnd_parse_connect_common(struct rsnd_dai *rdai,
696 struct rsnd_mod* (*mod_get)(struct rsnd_priv *priv, int id),
697 struct device_node *node,
698 struct device_node *playback,
699 struct device_node *capture)
701 struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai);
702 struct device_node *np;
703 struct rsnd_mod *mod;
710 for_each_child_of_node(node, np) {
711 mod = mod_get(priv, i);
713 rsnd_dai_connect(mod, &rdai->playback, mod->type);
715 rsnd_dai_connect(mod, &rdai->capture, mod->type);
722 static int rsnd_dai_probe(struct rsnd_priv *priv)
724 struct device_node *dai_node;
725 struct device_node *dai_np;
726 struct device_node *playback, *capture;
727 struct rsnd_dai_stream *io_playback;
728 struct rsnd_dai_stream *io_capture;
729 struct snd_soc_dai_driver *rdrv, *drv;
730 struct rsnd_dai *rdai;
731 struct device *dev = rsnd_priv_to_dev(priv);
735 dai_node = rsnd_dai_of_node(priv);
736 nr = of_get_child_count(dai_node);
739 goto rsnd_dai_probe_done;
742 rdrv = devm_kzalloc(dev, sizeof(*rdrv) * nr, GFP_KERNEL);
743 rdai = devm_kzalloc(dev, sizeof(*rdai) * nr, GFP_KERNEL);
744 if (!rdrv || !rdai) {
746 goto rsnd_dai_probe_done;
757 for_each_child_of_node(dai_node, dai_np) {
758 rdai = rsnd_rdai_get(priv, dai_i);
760 io_playback = &rdai->playback;
761 io_capture = &rdai->capture;
763 snprintf(rdai->name, RSND_DAI_NAME_SIZE, "rsnd-dai.%d", dai_i);
766 drv->name = rdai->name;
767 drv->ops = &rsnd_soc_dai_ops;
769 snprintf(rdai->playback.name, RSND_DAI_NAME_SIZE,
770 "DAI%d Playback", dai_i);
771 drv->playback.rates = RSND_RATES;
772 drv->playback.formats = RSND_FMTS;
773 drv->playback.channels_min = 2;
774 drv->playback.channels_max = 6;
775 drv->playback.stream_name = rdai->playback.name;
777 snprintf(rdai->capture.name, RSND_DAI_NAME_SIZE,
778 "DAI%d Capture", dai_i);
779 drv->capture.rates = RSND_RATES;
780 drv->capture.formats = RSND_FMTS;
781 drv->capture.channels_min = 2;
782 drv->capture.channels_max = 6;
783 drv->capture.stream_name = rdai->capture.name;
785 rdai->playback.rdai = rdai;
786 rdai->capture.rdai = rdai;
787 rsnd_set_slot(rdai, 2, 1); /* default */
789 for (io_i = 0;; io_i++) {
790 playback = of_parse_phandle(dai_np, "playback", io_i);
791 capture = of_parse_phandle(dai_np, "capture", io_i);
793 if (!playback && !capture)
796 rsnd_parse_connect_ssi(rdai, playback, capture);
797 rsnd_parse_connect_src(rdai, playback, capture);
798 rsnd_parse_connect_ctu(rdai, playback, capture);
799 rsnd_parse_connect_mix(rdai, playback, capture);
800 rsnd_parse_connect_dvc(rdai, playback, capture);
802 of_node_put(playback);
803 of_node_put(capture);
808 dev_dbg(dev, "%s (%s/%s)\n", rdai->name,
809 rsnd_io_to_mod_ssi(io_playback) ? "play" : " -- ",
810 rsnd_io_to_mod_ssi(io_capture) ? "capture" : " -- ");
816 of_node_put(dai_node);
824 static struct snd_pcm_hardware rsnd_pcm_hardware = {
825 .info = SNDRV_PCM_INFO_INTERLEAVED |
826 SNDRV_PCM_INFO_MMAP |
827 SNDRV_PCM_INFO_MMAP_VALID,
828 .buffer_bytes_max = 64 * 1024,
829 .period_bytes_min = 32,
830 .period_bytes_max = 8192,
836 static int rsnd_pcm_open(struct snd_pcm_substream *substream)
838 struct snd_pcm_runtime *runtime = substream->runtime;
841 snd_soc_set_runtime_hwparams(substream, &rsnd_pcm_hardware);
843 ret = snd_pcm_hw_constraint_integer(runtime,
844 SNDRV_PCM_HW_PARAM_PERIODS);
849 static int rsnd_hw_params(struct snd_pcm_substream *substream,
850 struct snd_pcm_hw_params *hw_params)
852 struct snd_soc_dai *dai = rsnd_substream_to_dai(substream);
853 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
854 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
857 ret = rsnd_dai_call(hw_params, io, substream, hw_params);
861 return snd_pcm_lib_malloc_pages(substream,
862 params_buffer_bytes(hw_params));
865 static snd_pcm_uframes_t rsnd_pointer(struct snd_pcm_substream *substream)
867 struct snd_pcm_runtime *runtime = substream->runtime;
868 struct snd_soc_dai *dai = rsnd_substream_to_dai(substream);
869 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
870 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
872 return bytes_to_frames(runtime, io->byte_pos);
875 static struct snd_pcm_ops rsnd_pcm_ops = {
876 .open = rsnd_pcm_open,
877 .ioctl = snd_pcm_lib_ioctl,
878 .hw_params = rsnd_hw_params,
879 .hw_free = snd_pcm_lib_free_pages,
880 .pointer = rsnd_pointer,
886 #define kcontrol_to_cfg(kctrl) ((struct rsnd_kctrl_cfg *)kctrl->private_value)
887 static int rsnd_kctrl_info(struct snd_kcontrol *kctrl,
888 struct snd_ctl_elem_info *uinfo)
890 struct rsnd_kctrl_cfg *cfg = kcontrol_to_cfg(kctrl);
893 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
894 uinfo->count = cfg->size;
895 uinfo->value.enumerated.items = cfg->max;
896 if (uinfo->value.enumerated.item >= cfg->max)
897 uinfo->value.enumerated.item = cfg->max - 1;
898 strlcpy(uinfo->value.enumerated.name,
899 cfg->texts[uinfo->value.enumerated.item],
900 sizeof(uinfo->value.enumerated.name));
902 uinfo->count = cfg->size;
903 uinfo->value.integer.min = 0;
904 uinfo->value.integer.max = cfg->max;
905 uinfo->type = (cfg->max == 1) ?
906 SNDRV_CTL_ELEM_TYPE_BOOLEAN :
907 SNDRV_CTL_ELEM_TYPE_INTEGER;
913 static int rsnd_kctrl_get(struct snd_kcontrol *kctrl,
914 struct snd_ctl_elem_value *uc)
916 struct rsnd_kctrl_cfg *cfg = kcontrol_to_cfg(kctrl);
919 for (i = 0; i < cfg->size; i++)
921 uc->value.enumerated.item[i] = cfg->val[i];
923 uc->value.integer.value[i] = cfg->val[i];
928 static int rsnd_kctrl_put(struct snd_kcontrol *kctrl,
929 struct snd_ctl_elem_value *uc)
931 struct rsnd_mod *mod = snd_kcontrol_chip(kctrl);
932 struct rsnd_kctrl_cfg *cfg = kcontrol_to_cfg(kctrl);
935 for (i = 0; i < cfg->size; i++) {
937 change |= (uc->value.enumerated.item[i] != cfg->val[i]);
938 cfg->val[i] = uc->value.enumerated.item[i];
940 change |= (uc->value.integer.value[i] != cfg->val[i]);
941 cfg->val[i] = uc->value.integer.value[i];
945 if (change && cfg->update)
946 cfg->update(cfg->io, mod);
951 static int __rsnd_kctrl_new(struct rsnd_mod *mod,
952 struct rsnd_dai_stream *io,
953 struct snd_soc_pcm_runtime *rtd,
954 const unsigned char *name,
955 struct rsnd_kctrl_cfg *cfg,
956 void (*update)(struct rsnd_dai_stream *io,
957 struct rsnd_mod *mod))
959 struct snd_card *card = rtd->card->snd_card;
960 struct snd_kcontrol *kctrl;
961 struct snd_kcontrol_new knew = {
962 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
964 .info = rsnd_kctrl_info,
966 .get = rsnd_kctrl_get,
967 .put = rsnd_kctrl_put,
968 .private_value = (unsigned long)cfg,
972 kctrl = snd_ctl_new1(&knew, mod);
976 ret = snd_ctl_add(card, kctrl);
978 snd_ctl_free_one(kctrl);
982 cfg->update = update;
990 void _rsnd_kctrl_remove(struct rsnd_kctrl_cfg *cfg)
992 snd_ctl_remove(cfg->card, cfg->kctrl);
995 int rsnd_kctrl_new_m(struct rsnd_mod *mod,
996 struct rsnd_dai_stream *io,
997 struct snd_soc_pcm_runtime *rtd,
998 const unsigned char *name,
999 void (*update)(struct rsnd_dai_stream *io,
1000 struct rsnd_mod *mod),
1001 struct rsnd_kctrl_cfg_m *_cfg,
1005 if (ch_size > RSND_MAX_CHANNELS)
1008 _cfg->cfg.max = max;
1009 _cfg->cfg.size = ch_size;
1010 _cfg->cfg.val = _cfg->val;
1011 return __rsnd_kctrl_new(mod, io, rtd, name, &_cfg->cfg, update);
1014 int rsnd_kctrl_new_s(struct rsnd_mod *mod,
1015 struct rsnd_dai_stream *io,
1016 struct snd_soc_pcm_runtime *rtd,
1017 const unsigned char *name,
1018 void (*update)(struct rsnd_dai_stream *io,
1019 struct rsnd_mod *mod),
1020 struct rsnd_kctrl_cfg_s *_cfg,
1023 _cfg->cfg.max = max;
1025 _cfg->cfg.val = &_cfg->val;
1026 return __rsnd_kctrl_new(mod, io, rtd, name, &_cfg->cfg, update);
1029 int rsnd_kctrl_new_e(struct rsnd_mod *mod,
1030 struct rsnd_dai_stream *io,
1031 struct snd_soc_pcm_runtime *rtd,
1032 const unsigned char *name,
1033 struct rsnd_kctrl_cfg_s *_cfg,
1034 void (*update)(struct rsnd_dai_stream *io,
1035 struct rsnd_mod *mod),
1036 const char * const *texts,
1039 _cfg->cfg.max = max;
1041 _cfg->cfg.val = &_cfg->val;
1042 _cfg->cfg.texts = texts;
1043 return __rsnd_kctrl_new(mod, io, rtd, name, &_cfg->cfg, update);
1050 #define PREALLOC_BUFFER (32 * 1024)
1051 #define PREALLOC_BUFFER_MAX (32 * 1024)
1053 static int rsnd_pcm_new(struct snd_soc_pcm_runtime *rtd)
1055 struct snd_soc_dai *dai = rtd->cpu_dai;
1056 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
1059 ret = rsnd_dai_call(pcm_new, &rdai->playback, rtd);
1063 ret = rsnd_dai_call(pcm_new, &rdai->capture, rtd);
1067 return snd_pcm_lib_preallocate_pages_for_all(
1070 rtd->card->snd_card->dev,
1071 PREALLOC_BUFFER, PREALLOC_BUFFER_MAX);
1074 static struct snd_soc_platform_driver rsnd_soc_platform = {
1075 .ops = &rsnd_pcm_ops,
1076 .pcm_new = rsnd_pcm_new,
1079 static const struct snd_soc_component_driver rsnd_soc_component = {
1083 static int rsnd_rdai_continuance_probe(struct rsnd_priv *priv,
1084 struct rsnd_dai_stream *io)
1088 ret = rsnd_dai_call(probe, io, priv);
1089 if (ret == -EAGAIN) {
1090 struct rsnd_mod *ssi_mod = rsnd_io_to_mod_ssi(io);
1094 * Fallback to PIO mode
1098 * call "remove" for SSI/SRC/DVC
1099 * SSI will be switch to PIO mode if it was DMA mode
1102 * rsnd_ssi_fallback()
1104 rsnd_dai_call(remove, io, priv);
1107 * remove all mod from io
1108 * and, re connect ssi
1110 for (i = 0; i < RSND_MOD_MAX; i++)
1111 rsnd_dai_disconnect((io)->mod[i], io, i);
1112 rsnd_dai_connect(ssi_mod, io, RSND_MOD_SSI);
1117 rsnd_dai_call(fallback, io, priv);
1121 * DAI has SSI which is PIO mode only now.
1123 ret = rsnd_dai_call(probe, io, priv);
1132 static int rsnd_probe(struct platform_device *pdev)
1134 struct rsnd_priv *priv;
1135 struct device *dev = &pdev->dev;
1136 struct rsnd_dai *rdai;
1137 int (*probe_func[])(struct rsnd_priv *priv) = {
1155 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
1157 dev_err(dev, "priv allocate failed\n");
1162 priv->flags = (unsigned long)of_device_get_match_data(dev);
1163 spin_lock_init(&priv->lock);
1168 for (i = 0; i < ARRAY_SIZE(probe_func); i++) {
1169 ret = probe_func[i](priv);
1174 for_each_rsnd_dai(rdai, priv, i) {
1175 ret = rsnd_rdai_continuance_probe(priv, &rdai->playback);
1177 goto exit_snd_probe;
1179 ret = rsnd_rdai_continuance_probe(priv, &rdai->capture);
1181 goto exit_snd_probe;
1184 dev_set_drvdata(dev, priv);
1189 ret = snd_soc_register_platform(dev, &rsnd_soc_platform);
1191 dev_err(dev, "cannot snd soc register\n");
1195 ret = snd_soc_register_component(dev, &rsnd_soc_component,
1196 priv->daidrv, rsnd_rdai_nr(priv));
1198 dev_err(dev, "cannot snd dai register\n");
1202 pm_runtime_enable(dev);
1204 dev_info(dev, "probed\n");
1208 snd_soc_unregister_platform(dev);
1210 for_each_rsnd_dai(rdai, priv, i) {
1211 rsnd_dai_call(remove, &rdai->playback, priv);
1212 rsnd_dai_call(remove, &rdai->capture, priv);
1218 static int rsnd_remove(struct platform_device *pdev)
1220 struct rsnd_priv *priv = dev_get_drvdata(&pdev->dev);
1221 struct rsnd_dai *rdai;
1222 void (*remove_func[])(struct rsnd_priv *priv) = {
1234 pm_runtime_disable(&pdev->dev);
1236 for_each_rsnd_dai(rdai, priv, i) {
1237 ret |= rsnd_dai_call(remove, &rdai->playback, priv);
1238 ret |= rsnd_dai_call(remove, &rdai->capture, priv);
1241 for (i = 0; i < ARRAY_SIZE(remove_func); i++)
1242 remove_func[i](priv);
1244 snd_soc_unregister_component(&pdev->dev);
1245 snd_soc_unregister_platform(&pdev->dev);
1250 static struct platform_driver rsnd_driver = {
1252 .name = "rcar_sound",
1253 .of_match_table = rsnd_of_match,
1255 .probe = rsnd_probe,
1256 .remove = rsnd_remove,
1258 module_platform_driver(rsnd_driver);
1260 MODULE_LICENSE("GPL");
1261 MODULE_DESCRIPTION("Renesas R-Car audio driver");
1262 MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
1263 MODULE_ALIAS("platform:rcar-pcm-audio");