1 // SPDX-License-Identifier: GPL-2.0
3 // Renesas R-Car SRU/SCU/SSIU/SSI support
5 // Copyright (C) 2013 Renesas Solutions Corp.
6 // Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
9 // Kuninori Morimoto <morimoto.kuninori@renesas.com>
12 * Renesas R-Car sound device structure
16 * SRU : Sound Routing Unit
17 * - SRC : Sampling Rate Converter
19 * - CTU : Channel Count Conversion Unit
21 * - DVC : Digital Volume and Mute Function
22 * - SSI : Serial Sound Interface
26 * SCU : Sampling Rate Converter Unit
27 * - SRC : Sampling Rate Converter
29 * - CTU : Channel Count Conversion Unit
31 * - DVC : Digital Volume and Mute Function
32 * SSIU : Serial Sound Interface Unit
33 * - SSI : Serial Sound Interface
41 * | ** this depends on Gen1/Gen2
45 * | ** these depend on data path
46 * | ** gen and platform data control it
50 * | +- playback -> [mod] -> [mod] -> [mod] -> ...
53 * | +- capture -> [mod] -> [mod] -> [mod] -> ...
57 * | +- playback -> [mod] -> [mod] -> [mod] -> ...
60 * | +- capture -> [mod] -> [mod] -> [mod] -> ...
63 * | ** these control ssi
72 * | ** these control src
82 * for_each_rsnd_dai(xx, priv, xx)
83 * rdai[0] => rdai[1] => rdai[2] => ...
85 * for_each_rsnd_mod(xx, rdai, xx)
86 * [mod] => [mod] => [mod] => ...
88 * rsnd_dai_call(xxx, fn )
89 * [mod]->fn() -> [mod]->fn() -> [mod]->fn()...
93 #include <linux/pm_runtime.h>
94 #include <linux/of_graph.h>
97 #define RSND_RATES SNDRV_PCM_RATE_8000_192000
98 #define RSND_FMTS (SNDRV_PCM_FMTBIT_S8 |\
99 SNDRV_PCM_FMTBIT_S16_LE |\
100 SNDRV_PCM_FMTBIT_S24_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_GEN3 },
106 { .compatible = "renesas,rcar_sound-gen4", .data = (void *)RSND_GEN4 },
107 /* Special Handling */
108 { .compatible = "renesas,rcar_sound-r8a77990", .data = (void *)(RSND_GEN3 | RSND_SOC_E) },
111 MODULE_DEVICE_TABLE(of, rsnd_of_match);
116 void rsnd_mod_make_sure(struct rsnd_mod *mod, enum rsnd_mod_type type)
118 if (mod->type != type) {
119 struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
120 struct device *dev = rsnd_priv_to_dev(priv);
122 dev_warn(dev, "%s is not your expected module\n",
127 struct dma_chan *rsnd_mod_dma_req(struct rsnd_dai_stream *io,
128 struct rsnd_mod *mod)
130 if (!mod || !mod->ops || !mod->ops->dma_req)
133 return mod->ops->dma_req(io, mod);
136 #define MOD_NAME_NUM 5
137 #define MOD_NAME_SIZE 16
138 char *rsnd_mod_name(struct rsnd_mod *mod)
140 static char names[MOD_NAME_NUM][MOD_NAME_SIZE];
142 char *name = names[num];
145 if (num >= MOD_NAME_NUM)
149 * Let's use same char to avoid pointlessness memory
150 * Thus, rsnd_mod_name() should be used immediately
153 if ((mod)->ops->id_sub) {
154 snprintf(name, MOD_NAME_SIZE, "%s[%d%d]",
157 rsnd_mod_id_sub(mod));
159 snprintf(name, MOD_NAME_SIZE, "%s[%d]",
167 u32 *rsnd_mod_get_status(struct rsnd_mod *mod,
168 struct rsnd_dai_stream *io,
169 enum rsnd_mod_type type)
174 int rsnd_mod_id_raw(struct rsnd_mod *mod)
179 int rsnd_mod_id(struct rsnd_mod *mod)
182 return (mod)->ops->id(mod);
184 return rsnd_mod_id_raw(mod);
187 int rsnd_mod_id_sub(struct rsnd_mod *mod)
189 if ((mod)->ops->id_sub)
190 return (mod)->ops->id_sub(mod);
195 int rsnd_mod_init(struct rsnd_priv *priv,
196 struct rsnd_mod *mod,
197 struct rsnd_mod_ops *ops,
199 enum rsnd_mod_type type,
202 int ret = clk_prepare(clk);
216 void rsnd_mod_quit(struct rsnd_mod *mod)
218 clk_unprepare(mod->clk);
222 void rsnd_mod_interrupt(struct rsnd_mod *mod,
223 void (*callback)(struct rsnd_mod *mod,
224 struct rsnd_dai_stream *io))
226 struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
227 struct rsnd_dai *rdai;
230 for_each_rsnd_dai(rdai, priv, i) {
231 struct rsnd_dai_stream *io = &rdai->playback;
233 if (mod == io->mod[mod->type])
237 if (mod == io->mod[mod->type])
242 int rsnd_io_is_working(struct rsnd_dai_stream *io)
244 /* see rsnd_dai_stream_init/quit() */
246 return snd_pcm_running(io->substream);
251 int rsnd_runtime_channel_original_with_params(struct rsnd_dai_stream *io,
252 struct snd_pcm_hw_params *params)
254 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
257 * params will be added when refine
259 * __rsnd_soc_hw_rule_rate()
260 * __rsnd_soc_hw_rule_channels()
263 return params_channels(params);
265 return runtime->channels;
269 int rsnd_runtime_channel_after_ctu_with_params(struct rsnd_dai_stream *io,
270 struct snd_pcm_hw_params *params)
272 int chan = rsnd_runtime_channel_original_with_params(io, params);
273 struct rsnd_mod *ctu_mod = rsnd_io_to_mod_ctu(io);
276 u32 converted_chan = rsnd_io_converted_chan(io);
281 * converted_chan will be used for CTU,
283 * User shouldn't use CTU with TDM Split mode.
285 if (rsnd_runtime_is_tdm_split(io)) {
286 struct device *dev = rsnd_priv_to_dev(rsnd_io_to_priv(io));
288 dev_err(dev, "CTU and TDM Split should be used\n");
292 return converted_chan;
298 int rsnd_channel_normalization(int chan)
300 if (WARN_ON((chan > 8) || (chan < 0)))
303 /* TDM Extend Mode needs 8ch */
310 int rsnd_runtime_channel_for_ssi_with_params(struct rsnd_dai_stream *io,
311 struct snd_pcm_hw_params *params)
313 struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
314 int chan = rsnd_io_is_play(io) ?
315 rsnd_runtime_channel_after_ctu_with_params(io, params) :
316 rsnd_runtime_channel_original_with_params(io, params);
319 if (rsnd_runtime_is_multi_ssi(io))
320 chan /= rsnd_rdai_ssi_lane_get(rdai);
322 return rsnd_channel_normalization(chan);
325 int rsnd_runtime_is_multi_ssi(struct rsnd_dai_stream *io)
327 struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
328 int lane = rsnd_rdai_ssi_lane_get(rdai);
329 int chan = rsnd_io_is_play(io) ?
330 rsnd_runtime_channel_after_ctu(io) :
331 rsnd_runtime_channel_original(io);
333 return (chan > 2) && (lane > 1);
336 int rsnd_runtime_is_tdm(struct rsnd_dai_stream *io)
338 return rsnd_runtime_channel_for_ssi(io) >= 6;
341 int rsnd_runtime_is_tdm_split(struct rsnd_dai_stream *io)
343 return !!rsnd_flags_has(io, RSND_STREAM_TDM_SPLIT);
349 u32 rsnd_get_adinr_bit(struct rsnd_mod *mod, struct rsnd_dai_stream *io)
351 struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
352 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
353 struct device *dev = rsnd_priv_to_dev(priv);
355 switch (snd_pcm_format_width(runtime->format)) {
364 dev_warn(dev, "not supported sample bits\n");
372 u32 rsnd_get_dalign(struct rsnd_mod *mod, struct rsnd_dai_stream *io)
374 static const u32 dalign_values[8] = {
375 0x76543210, 0x00000032, 0x00007654, 0x00000076,
376 0xfedcba98, 0x000000ba, 0x0000fedc, 0x000000fe,
379 struct rsnd_mod *ssiu = rsnd_io_to_mod_ssiu(io);
380 struct rsnd_mod *target;
381 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
385 * *Hardware* L/R and *Software* L/R are inverted for 16bit data.
389 * We need to care about inversion timing to control
390 * Playback/Capture correctly.
391 * The point is [DVC] needs *Hardware* L/R, [MEM] needs *Software* L/R
393 * sL/R : software L/R
394 * hL/R : hardware L/R
395 * (*) : conversion timing
398 * sL/R (*) hL/R hL/R hL/R hL/R hL/R
399 * [MEM] -> [SRC] -> [DVC] -> [CMD] -> [SSIU] -> [SSI] -> codec
402 * hL/R hL/R hL/R hL/R hL/R (*) sL/R
403 * codec -> [SSI] -> [SSIU] -> [SRC] -> [DVC] -> [CMD] -> [MEM]
405 if (rsnd_io_is_play(io)) {
406 struct rsnd_mod *src = rsnd_io_to_mod_src(io);
408 target = src ? src : ssiu;
410 struct rsnd_mod *cmd = rsnd_io_to_mod_cmd(io);
412 target = cmd ? cmd : ssiu;
416 id = rsnd_mod_id_sub(mod);
418 dalign = dalign_values[id];
420 if (mod == target && snd_pcm_format_width(runtime->format) == 16) {
421 /* Target mod needs inverted DALIGN when 16bit */
422 dalign = (dalign & 0xf0f0f0f0) >> 4 |
423 (dalign & 0x0f0f0f0f) << 4;
429 u32 rsnd_get_busif_shift(struct rsnd_dai_stream *io, struct rsnd_mod *mod)
431 static const enum rsnd_mod_type playback_mods[] = {
436 static const enum rsnd_mod_type capture_mods[] = {
441 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
442 struct rsnd_mod *tmod = NULL;
443 const enum rsnd_mod_type *mods =
444 rsnd_io_is_play(io) ?
445 playback_mods : capture_mods;
449 * This is needed for 24bit data
450 * We need to shift 8bit
452 * Linux 24bit data is located as 0x00******
453 * HW 24bit data is located as 0x******00
456 if (snd_pcm_format_width(runtime->format) != 24)
459 for (i = 0; i < ARRAY_SIZE(playback_mods); i++) {
460 tmod = rsnd_io_to_mod(io, mods[i]);
468 if (rsnd_io_is_play(io))
469 return (0 << 20) | /* shift to Left */
470 (8 << 16); /* 8bit */
472 return (1 << 20) | /* shift to Right */
473 (8 << 16); /* 8bit */
479 struct rsnd_mod *rsnd_mod_next(int *iterator,
480 struct rsnd_dai_stream *io,
481 enum rsnd_mod_type *array,
484 int max = array ? array_size : RSND_MOD_MAX;
486 for (; *iterator < max; (*iterator)++) {
487 enum rsnd_mod_type type = (array) ? array[*iterator] : *iterator;
488 struct rsnd_mod *mod = rsnd_io_to_mod(io, type);
497 static enum rsnd_mod_type rsnd_mod_sequence[][RSND_MOD_MAX] = {
531 static int rsnd_status_update(struct rsnd_dai_stream *io,
532 struct rsnd_mod *mod, enum rsnd_mod_type type,
533 int shift, int add, int timing)
535 u32 *status = mod->ops->get_status(mod, io, type);
536 u32 mask = 0xF << shift;
537 u8 val = (*status >> shift) & 0xF;
538 u8 next_val = (val + add) & 0xF;
539 int func_call = (val == timing);
541 /* no status update */
542 if (add == 0 || shift == 28)
545 if (next_val == 0xF) /* underflow case */
548 *status = (*status & ~mask) + (next_val << shift);
553 #define rsnd_dai_call(fn, io, param...) \
555 struct device *dev = rsnd_priv_to_dev(rsnd_io_to_priv(io)); \
556 struct rsnd_mod *mod; \
557 int is_play = rsnd_io_is_play(io); \
559 enum rsnd_mod_type *types = rsnd_mod_sequence[is_play]; \
560 for_each_rsnd_mod_arrays(i, mod, io, types, RSND_MOD_MAX) { \
562 int func_call = rsnd_status_update(io, mod, types[i], \
563 __rsnd_mod_shift_##fn, \
564 __rsnd_mod_add_##fn, \
565 __rsnd_mod_call_##fn); \
566 if (func_call > 0 && (mod)->ops->fn) \
567 tmp = (mod)->ops->fn(mod, io, param); \
568 if (unlikely(func_call < 0) || \
569 unlikely(tmp && (tmp != -EPROBE_DEFER))) \
570 dev_err(dev, "%s : %s error (%d, %d)\n", \
571 rsnd_mod_name(mod), #fn, tmp, func_call);\
577 int rsnd_dai_connect(struct rsnd_mod *mod,
578 struct rsnd_dai_stream *io,
579 enum rsnd_mod_type type)
581 struct rsnd_priv *priv;
587 if (io->mod[type] == mod)
593 priv = rsnd_mod_to_priv(mod);
594 dev = rsnd_priv_to_dev(priv);
598 dev_dbg(dev, "%s is connected to io (%s)\n",
600 rsnd_io_is_play(io) ? "Playback" : "Capture");
605 static void rsnd_dai_disconnect(struct rsnd_mod *mod,
606 struct rsnd_dai_stream *io,
607 enum rsnd_mod_type type)
609 io->mod[type] = NULL;
612 int rsnd_rdai_channels_ctrl(struct rsnd_dai *rdai,
615 if (max_channels > 0)
616 rdai->max_channels = max_channels;
618 return rdai->max_channels;
621 int rsnd_rdai_ssi_lane_ctrl(struct rsnd_dai *rdai,
625 rdai->ssi_lane = ssi_lane;
627 return rdai->ssi_lane;
630 int rsnd_rdai_width_ctrl(struct rsnd_dai *rdai, int width)
633 rdai->chan_width = width;
635 return rdai->chan_width;
638 struct rsnd_dai *rsnd_rdai_get(struct rsnd_priv *priv, int id)
640 if ((id < 0) || (id >= rsnd_rdai_nr(priv)))
643 return priv->rdai + id;
646 static struct snd_soc_dai_driver
647 *rsnd_daidrv_get(struct rsnd_priv *priv, int id)
649 if ((id < 0) || (id >= rsnd_rdai_nr(priv)))
652 return priv->daidrv + id;
655 #define rsnd_dai_to_priv(dai) snd_soc_dai_get_drvdata(dai)
656 static struct rsnd_dai *rsnd_dai_to_rdai(struct snd_soc_dai *dai)
658 struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
660 return rsnd_rdai_get(priv, dai->id);
664 * rsnd_soc_dai functions
666 void rsnd_dai_period_elapsed(struct rsnd_dai_stream *io)
668 struct snd_pcm_substream *substream = io->substream;
671 * this function should be called...
673 * - if rsnd_dai_pointer_update() returns true
674 * - without spin lock
677 snd_pcm_period_elapsed(substream);
680 static void rsnd_dai_stream_init(struct rsnd_dai_stream *io,
681 struct snd_pcm_substream *substream)
683 io->substream = substream;
686 static void rsnd_dai_stream_quit(struct rsnd_dai_stream *io)
688 io->substream = NULL;
692 struct snd_soc_dai *rsnd_substream_to_dai(struct snd_pcm_substream *substream)
694 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
696 return snd_soc_rtd_to_cpu(rtd, 0);
700 struct rsnd_dai_stream *rsnd_rdai_to_io(struct rsnd_dai *rdai,
701 struct snd_pcm_substream *substream)
703 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
704 return &rdai->playback;
706 return &rdai->capture;
709 static int rsnd_soc_dai_trigger(struct snd_pcm_substream *substream, int cmd,
710 struct snd_soc_dai *dai)
712 struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
713 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
714 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
718 spin_lock_irqsave(&priv->lock, flags);
721 case SNDRV_PCM_TRIGGER_START:
722 case SNDRV_PCM_TRIGGER_RESUME:
723 ret = rsnd_dai_call(init, io, priv);
725 goto dai_trigger_end;
727 ret = rsnd_dai_call(start, io, priv);
729 goto dai_trigger_end;
731 ret = rsnd_dai_call(irq, io, priv, 1);
733 goto dai_trigger_end;
736 case SNDRV_PCM_TRIGGER_STOP:
737 case SNDRV_PCM_TRIGGER_SUSPEND:
738 ret = rsnd_dai_call(irq, io, priv, 0);
740 ret |= rsnd_dai_call(stop, io, priv);
742 ret |= rsnd_dai_call(quit, io, priv);
750 spin_unlock_irqrestore(&priv->lock, flags);
755 static int rsnd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
757 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
759 /* set clock master for audio interface */
760 switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
761 case SND_SOC_DAIFMT_BC_FC:
762 rdai->clk_master = 0;
764 case SND_SOC_DAIFMT_BP_FP:
765 rdai->clk_master = 1; /* cpu is master */
772 rdai->bit_clk_inv = 0;
773 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
774 case SND_SOC_DAIFMT_I2S:
776 rdai->data_alignment = 0;
777 rdai->frm_clk_inv = 0;
779 case SND_SOC_DAIFMT_LEFT_J:
780 case SND_SOC_DAIFMT_DSP_B:
782 rdai->data_alignment = 0;
783 rdai->frm_clk_inv = 1;
785 case SND_SOC_DAIFMT_RIGHT_J:
787 rdai->data_alignment = 1;
788 rdai->frm_clk_inv = 1;
790 case SND_SOC_DAIFMT_DSP_A:
792 rdai->data_alignment = 0;
793 rdai->frm_clk_inv = 1;
797 /* set clock inversion */
798 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
799 case SND_SOC_DAIFMT_NB_IF:
800 rdai->frm_clk_inv = !rdai->frm_clk_inv;
802 case SND_SOC_DAIFMT_IB_NF:
803 rdai->bit_clk_inv = !rdai->bit_clk_inv;
805 case SND_SOC_DAIFMT_IB_IF:
806 rdai->bit_clk_inv = !rdai->bit_clk_inv;
807 rdai->frm_clk_inv = !rdai->frm_clk_inv;
809 case SND_SOC_DAIFMT_NB_NF:
817 static int rsnd_soc_set_dai_tdm_slot(struct snd_soc_dai *dai,
818 u32 tx_mask, u32 rx_mask,
819 int slots, int slot_width)
821 struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
822 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
823 struct device *dev = rsnd_priv_to_dev(priv);
825 switch (slot_width) {
833 * Indicate warning if DT has "dai-tdm-slot-width"
834 * but the value was not expected.
837 dev_warn(dev, "unsupported TDM slot width (%d), force to use default 32\n",
847 /* TDM Extend Mode */
848 rsnd_rdai_channels_set(rdai, slots);
849 rsnd_rdai_ssi_lane_set(rdai, 1);
850 rsnd_rdai_width_set(rdai, slot_width);
853 dev_err(dev, "unsupported TDM slots (%d)\n", slots);
860 static unsigned int rsnd_soc_hw_channels_list[] = {
864 static unsigned int rsnd_soc_hw_rate_list[] = {
879 static int rsnd_soc_hw_rule(struct rsnd_dai *rdai,
880 unsigned int *list, int list_num,
881 struct snd_interval *baseline, struct snd_interval *iv,
882 struct rsnd_dai_stream *io, char *unit)
884 struct snd_interval p;
888 snd_interval_any(&p);
892 for (i = 0; i < list_num; i++) {
894 if (!snd_interval_test(iv, list[i]))
897 rate = rsnd_ssi_clk_query(rdai,
898 baseline->min, list[i], NULL);
900 p.min = min(p.min, list[i]);
901 p.max = max(p.max, list[i]);
904 rate = rsnd_ssi_clk_query(rdai,
905 baseline->max, list[i], NULL);
907 p.min = min(p.min, list[i]);
908 p.max = max(p.max, list[i]);
912 /* Indicate error once if it can't handle */
913 if (!rsnd_flags_has(io, RSND_HW_RULE_ERR) && (p.min > p.max)) {
914 struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai);
915 struct device *dev = rsnd_priv_to_dev(priv);
917 dev_warn(dev, "It can't handle %d %s <-> %d %s\n",
918 baseline->min, unit, baseline->max, unit);
919 rsnd_flags_set(io, RSND_HW_RULE_ERR);
922 return snd_interval_refine(iv, &p);
925 static int rsnd_soc_hw_rule_rate(struct snd_pcm_hw_params *params,
926 struct snd_pcm_hw_rule *rule)
928 struct snd_interval *ic_ = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
929 struct snd_interval *ir = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
930 struct snd_interval ic;
931 struct rsnd_dai_stream *io = rule->private;
932 struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
935 * possible sampling rate limitation is same as
936 * 2ch if it supports multi ssi
937 * and same as 8ch if TDM 6ch (see rsnd_ssi_config_init())
941 ic.max = rsnd_runtime_channel_for_ssi_with_params(io, params);
943 return rsnd_soc_hw_rule(rdai, rsnd_soc_hw_rate_list,
944 ARRAY_SIZE(rsnd_soc_hw_rate_list),
948 static int rsnd_soc_hw_rule_channels(struct snd_pcm_hw_params *params,
949 struct snd_pcm_hw_rule *rule)
951 struct snd_interval *ic_ = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
952 struct snd_interval *ir = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
953 struct snd_interval ic;
954 struct rsnd_dai_stream *io = rule->private;
955 struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
958 * possible sampling rate limitation is same as
959 * 2ch if it supports multi ssi
960 * and same as 8ch if TDM 6ch (see rsnd_ssi_config_init())
964 ic.max = rsnd_runtime_channel_for_ssi_with_params(io, params);
966 return rsnd_soc_hw_rule(rdai, rsnd_soc_hw_channels_list,
967 ARRAY_SIZE(rsnd_soc_hw_channels_list),
971 static const struct snd_pcm_hardware rsnd_pcm_hardware = {
972 .info = SNDRV_PCM_INFO_INTERLEAVED |
973 SNDRV_PCM_INFO_MMAP |
974 SNDRV_PCM_INFO_MMAP_VALID,
975 .buffer_bytes_max = 64 * 1024,
976 .period_bytes_min = 32,
977 .period_bytes_max = 8192,
983 static int rsnd_soc_dai_startup(struct snd_pcm_substream *substream,
984 struct snd_soc_dai *dai)
986 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
987 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
988 struct snd_pcm_hw_constraint_list *constraint = &rdai->constraint;
989 struct snd_pcm_runtime *runtime = substream->runtime;
990 unsigned int max_channels = rsnd_rdai_channels_get(rdai);
993 rsnd_flags_del(io, RSND_HW_RULE_ERR);
995 rsnd_dai_stream_init(io, substream);
999 * It depends on Platform design
1001 constraint->list = rsnd_soc_hw_channels_list;
1002 constraint->count = 0;
1003 constraint->mask = 0;
1005 for (i = 0; i < ARRAY_SIZE(rsnd_soc_hw_channels_list); i++) {
1006 if (rsnd_soc_hw_channels_list[i] > max_channels)
1008 constraint->count = i + 1;
1011 snd_soc_set_runtime_hwparams(substream, &rsnd_pcm_hardware);
1013 snd_pcm_hw_constraint_list(runtime, 0,
1014 SNDRV_PCM_HW_PARAM_CHANNELS, constraint);
1016 snd_pcm_hw_constraint_integer(runtime,
1017 SNDRV_PCM_HW_PARAM_PERIODS);
1020 * Sampling Rate / Channel Limitation
1021 * It depends on Clock Master Mode
1023 if (rsnd_rdai_is_clk_master(rdai)) {
1024 int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
1026 snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
1027 rsnd_soc_hw_rule_rate,
1028 is_play ? &rdai->playback : &rdai->capture,
1029 SNDRV_PCM_HW_PARAM_CHANNELS, -1);
1030 snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
1031 rsnd_soc_hw_rule_channels,
1032 is_play ? &rdai->playback : &rdai->capture,
1033 SNDRV_PCM_HW_PARAM_RATE, -1);
1039 static void rsnd_soc_dai_shutdown(struct snd_pcm_substream *substream,
1040 struct snd_soc_dai *dai)
1042 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
1043 struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai);
1044 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
1047 * call rsnd_dai_call without spinlock
1049 rsnd_dai_call(cleanup, io, priv);
1051 rsnd_dai_stream_quit(io);
1054 static int rsnd_soc_dai_prepare(struct snd_pcm_substream *substream,
1055 struct snd_soc_dai *dai)
1057 struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
1058 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
1059 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
1061 return rsnd_dai_call(prepare, io, priv);
1064 static u64 rsnd_soc_dai_formats[] = {
1068 * Well tested formats.
1069 * Select below from Sound Card, not auto
1070 * SND_SOC_DAIFMT_CBC_CFC
1071 * SND_SOC_DAIFMT_CBP_CFP
1073 SND_SOC_POSSIBLE_DAIFMT_I2S |
1074 SND_SOC_POSSIBLE_DAIFMT_RIGHT_J |
1075 SND_SOC_POSSIBLE_DAIFMT_LEFT_J |
1076 SND_SOC_POSSIBLE_DAIFMT_NB_NF |
1077 SND_SOC_POSSIBLE_DAIFMT_NB_IF |
1078 SND_SOC_POSSIBLE_DAIFMT_IB_NF |
1079 SND_SOC_POSSIBLE_DAIFMT_IB_IF,
1083 * Supported, but not well tested
1085 SND_SOC_POSSIBLE_DAIFMT_DSP_A |
1086 SND_SOC_POSSIBLE_DAIFMT_DSP_B,
1089 static void rsnd_parse_tdm_split_mode(struct rsnd_priv *priv,
1090 struct rsnd_dai_stream *io,
1091 struct device_node *dai_np)
1093 struct device *dev = rsnd_priv_to_dev(priv);
1094 struct device_node *ssiu_np = rsnd_ssiu_of_node(priv);
1095 struct device_node *np;
1096 int is_play = rsnd_io_is_play(io);
1103 * This driver assumes that it is TDM Split mode
1104 * if it includes ssiu node
1107 struct device_node *node = is_play ?
1108 of_parse_phandle(dai_np, "playback", i) :
1109 of_parse_phandle(dai_np, "capture", i);
1114 for_each_child_of_node(ssiu_np, np) {
1116 rsnd_flags_set(io, RSND_STREAM_TDM_SPLIT);
1117 dev_dbg(dev, "%s is part of TDM Split\n", io->name);
1124 of_node_put(ssiu_np);
1127 static void rsnd_parse_connect_simple(struct rsnd_priv *priv,
1128 struct rsnd_dai_stream *io,
1129 struct device_node *dai_np)
1131 if (!rsnd_io_to_mod_ssi(io))
1134 rsnd_parse_tdm_split_mode(priv, io, dai_np);
1137 static void rsnd_parse_connect_graph(struct rsnd_priv *priv,
1138 struct rsnd_dai_stream *io,
1139 struct device_node *endpoint)
1141 struct device *dev = rsnd_priv_to_dev(priv);
1142 struct device_node *remote_node;
1144 if (!rsnd_io_to_mod_ssi(io))
1147 remote_node = of_graph_get_remote_port_parent(endpoint);
1150 if (strstr(remote_node->full_name, "hdmi@fead0000")) {
1151 rsnd_flags_set(io, RSND_STREAM_HDMI0);
1152 dev_dbg(dev, "%s connected to HDMI0\n", io->name);
1156 if (strstr(remote_node->full_name, "hdmi@feae0000")) {
1157 rsnd_flags_set(io, RSND_STREAM_HDMI1);
1158 dev_dbg(dev, "%s connected to HDMI1\n", io->name);
1161 rsnd_parse_tdm_split_mode(priv, io, endpoint);
1163 of_node_put(remote_node);
1166 void rsnd_parse_connect_common(struct rsnd_dai *rdai, char *name,
1167 struct rsnd_mod* (*mod_get)(struct rsnd_priv *priv, int id),
1168 struct device_node *node,
1169 struct device_node *playback,
1170 struct device_node *capture)
1172 struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai);
1173 struct device *dev = rsnd_priv_to_dev(priv);
1174 struct device_node *np;
1181 for_each_child_of_node(node, np) {
1182 struct rsnd_mod *mod;
1184 i = rsnd_node_fixed_index(dev, np, name, i);
1190 mod = mod_get(priv, i);
1193 rsnd_dai_connect(mod, &rdai->playback, mod->type);
1195 rsnd_dai_connect(mod, &rdai->capture, mod->type);
1202 int rsnd_node_fixed_index(struct device *dev, struct device_node *node, char *name, int idx)
1207 * rsnd is assuming each device nodes are sequential numbering,
1208 * but some of them are not.
1209 * This function adjusts index for it.
1212 * Normal case, special case
1220 * assume Max 64 node
1222 for (; idx < 64; idx++) {
1223 snprintf(node_name, sizeof(node_name), "%s-%d", name, idx);
1225 if (strncmp(node_name, of_node_full_name(node), sizeof(node_name)) == 0)
1229 dev_err(dev, "strange node numbering (%s)",
1230 of_node_full_name(node));
1234 int rsnd_node_count(struct rsnd_priv *priv, struct device_node *node, char *name)
1236 struct device *dev = rsnd_priv_to_dev(priv);
1237 struct device_node *np;
1241 for_each_child_of_node(node, np) {
1242 i = rsnd_node_fixed_index(dev, np, name, i);
1253 static int rsnd_dai_of_node(struct rsnd_priv *priv, int *is_graph)
1255 struct device *dev = rsnd_priv_to_dev(priv);
1256 struct device_node *np = dev->of_node;
1257 struct device_node *ports, *node;
1264 * parse both previous dai (= rcar_sound,dai), and
1265 * graph dai (= ports/port)
1271 node = of_get_child_by_name(np, RSND_NODE_DAI);
1277 for_each_child_of_node(np, node) {
1278 if (!of_node_name_eq(node, RSND_NODE_DAI))
1281 priv->component_dais[i] = of_get_child_count(node);
1282 nr += priv->component_dais[i];
1284 if (i >= RSND_MAX_COMPONENT) {
1285 dev_info(dev, "reach to max component\n");
1297 for_each_child_of_node(np, ports) {
1298 if (!of_node_name_eq(ports, "ports") &&
1299 !of_node_name_eq(ports, "port"))
1301 priv->component_dais[i] = of_graph_get_endpoint_count(ports);
1302 nr += priv->component_dais[i];
1304 if (i >= RSND_MAX_COMPONENT) {
1305 dev_info(dev, "reach to max component\n");
1317 #define PREALLOC_BUFFER (32 * 1024)
1318 #define PREALLOC_BUFFER_MAX (32 * 1024)
1320 static int rsnd_preallocate_pages(struct snd_soc_pcm_runtime *rtd,
1321 struct rsnd_dai_stream *io,
1324 struct rsnd_priv *priv = rsnd_io_to_priv(io);
1325 struct device *dev = rsnd_priv_to_dev(priv);
1326 struct snd_pcm_substream *substream;
1329 * use Audio-DMAC dev if we can use IPMMU
1331 * rsnd_dmaen_attach()
1336 for (substream = rtd->pcm->streams[stream].substream;
1338 substream = substream->next) {
1339 snd_pcm_set_managed_buffer(substream,
1342 PREALLOC_BUFFER, PREALLOC_BUFFER_MAX);
1348 static int rsnd_soc_dai_pcm_new(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai)
1350 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
1353 ret = rsnd_dai_call(pcm_new, &rdai->playback, rtd);
1357 ret = rsnd_dai_call(pcm_new, &rdai->capture, rtd);
1361 ret = rsnd_preallocate_pages(rtd, &rdai->playback,
1362 SNDRV_PCM_STREAM_PLAYBACK);
1366 ret = rsnd_preallocate_pages(rtd, &rdai->capture,
1367 SNDRV_PCM_STREAM_CAPTURE);
1374 static const struct snd_soc_dai_ops rsnd_soc_dai_ops = {
1375 .pcm_new = rsnd_soc_dai_pcm_new,
1376 .startup = rsnd_soc_dai_startup,
1377 .shutdown = rsnd_soc_dai_shutdown,
1378 .trigger = rsnd_soc_dai_trigger,
1379 .set_fmt = rsnd_soc_dai_set_fmt,
1380 .set_tdm_slot = rsnd_soc_set_dai_tdm_slot,
1381 .prepare = rsnd_soc_dai_prepare,
1382 .auto_selectable_formats = rsnd_soc_dai_formats,
1383 .num_auto_selectable_formats = ARRAY_SIZE(rsnd_soc_dai_formats),
1386 static void __rsnd_dai_probe(struct rsnd_priv *priv,
1387 struct device_node *dai_np,
1388 struct device_node *node_np,
1392 struct rsnd_dai_stream *io_playback;
1393 struct rsnd_dai_stream *io_capture;
1394 struct snd_soc_dai_driver *drv;
1395 struct rsnd_dai *rdai;
1396 struct device *dev = rsnd_priv_to_dev(priv);
1397 int playback_exist = 0, capture_exist = 0;
1400 rdai = rsnd_rdai_get(priv, dai_i);
1401 drv = rsnd_daidrv_get(priv, dai_i);
1402 io_playback = &rdai->playback;
1403 io_capture = &rdai->capture;
1405 snprintf(rdai->name, RSND_DAI_NAME_SIZE, "rsnd-dai.%d", dai_i);
1407 /* for multi Component */
1408 rdai->dai_args.np = node_np;
1409 rdai->dai_args.args_count = 1;
1410 rdai->dai_args.args[0] = node_arg;
1413 drv->name = rdai->name;
1414 drv->ops = &rsnd_soc_dai_ops;
1416 drv->dai_args = &rdai->dai_args;
1418 io_playback->rdai = rdai;
1419 io_capture->rdai = rdai;
1420 rsnd_rdai_channels_set(rdai, 2); /* default 2ch */
1421 rsnd_rdai_ssi_lane_set(rdai, 1); /* default 1lane */
1422 rsnd_rdai_width_set(rdai, 32); /* default 32bit width */
1424 for (io_i = 0;; io_i++) {
1425 struct device_node *playback = of_parse_phandle(dai_np, "playback", io_i);
1426 struct device_node *capture = of_parse_phandle(dai_np, "capture", io_i);
1428 if (!playback && !capture)
1432 /* check whether playback/capture property exists */
1439 rsnd_parse_connect_ssi(rdai, playback, capture);
1440 rsnd_parse_connect_ssiu(rdai, playback, capture);
1441 rsnd_parse_connect_src(rdai, playback, capture);
1442 rsnd_parse_connect_ctu(rdai, playback, capture);
1443 rsnd_parse_connect_mix(rdai, playback, capture);
1444 rsnd_parse_connect_dvc(rdai, playback, capture);
1446 of_node_put(playback);
1447 of_node_put(capture);
1450 if (playback_exist) {
1451 snprintf(io_playback->name, RSND_DAI_NAME_SIZE, "DAI%d Playback", dai_i);
1452 drv->playback.rates = RSND_RATES;
1453 drv->playback.formats = RSND_FMTS;
1454 drv->playback.channels_min = 2;
1455 drv->playback.channels_max = 8;
1456 drv->playback.stream_name = io_playback->name;
1458 if (capture_exist) {
1459 snprintf(io_capture->name, RSND_DAI_NAME_SIZE, "DAI%d Capture", dai_i);
1460 drv->capture.rates = RSND_RATES;
1461 drv->capture.formats = RSND_FMTS;
1462 drv->capture.channels_min = 2;
1463 drv->capture.channels_max = 8;
1464 drv->capture.stream_name = io_capture->name;
1467 if (rsnd_ssi_is_pin_sharing(io_capture) ||
1468 rsnd_ssi_is_pin_sharing(io_playback)) {
1469 /* should have symmetric_rate if pin sharing */
1470 drv->symmetric_rate = 1;
1473 dev_dbg(dev, "%s (%s/%s)\n", rdai->name,
1474 rsnd_io_to_mod_ssi(io_playback) ? "play" : " -- ",
1475 rsnd_io_to_mod_ssi(io_capture) ? "capture" : " -- ");
1478 static int rsnd_dai_probe(struct rsnd_priv *priv)
1480 struct snd_soc_dai_driver *rdrv;
1481 struct device *dev = rsnd_priv_to_dev(priv);
1482 struct device_node *np = dev->of_node;
1483 struct rsnd_dai *rdai;
1488 nr = rsnd_dai_of_node(priv, &is_graph);
1492 rdrv = devm_kcalloc(dev, nr, sizeof(*rdrv), GFP_KERNEL);
1493 rdai = devm_kcalloc(dev, nr, sizeof(*rdai), GFP_KERNEL);
1498 priv->daidrv = rdrv;
1506 struct device_node *ports;
1507 struct device_node *dai_np;
1509 for_each_child_of_node(np, ports) {
1510 if (!of_node_name_eq(ports, "ports") &&
1511 !of_node_name_eq(ports, "port"))
1513 for_each_endpoint_of_node(ports, dai_np) {
1514 __rsnd_dai_probe(priv, dai_np, dai_np, 0, dai_i);
1515 if (rsnd_is_gen3(priv) || rsnd_is_gen4(priv)) {
1516 rdai = rsnd_rdai_get(priv, dai_i);
1518 rsnd_parse_connect_graph(priv, &rdai->playback, dai_np);
1519 rsnd_parse_connect_graph(priv, &rdai->capture, dai_np);
1525 struct device_node *node;
1526 struct device_node *dai_np;
1528 for_each_child_of_node(np, node) {
1529 if (!of_node_name_eq(node, RSND_NODE_DAI))
1532 for_each_child_of_node(node, dai_np) {
1533 __rsnd_dai_probe(priv, dai_np, np, dai_i, dai_i);
1534 if (rsnd_is_gen3(priv) || rsnd_is_gen4(priv)) {
1535 rdai = rsnd_rdai_get(priv, dai_i);
1537 rsnd_parse_connect_simple(priv, &rdai->playback, dai_np);
1538 rsnd_parse_connect_simple(priv, &rdai->capture, dai_np);
1551 static int rsnd_hw_update(struct snd_pcm_substream *substream,
1552 struct snd_pcm_hw_params *hw_params)
1554 struct snd_soc_dai *dai = rsnd_substream_to_dai(substream);
1555 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
1556 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
1557 struct rsnd_priv *priv = rsnd_io_to_priv(io);
1558 unsigned long flags;
1561 spin_lock_irqsave(&priv->lock, flags);
1563 ret = rsnd_dai_call(hw_params, io, substream, hw_params);
1565 ret = rsnd_dai_call(hw_free, io, substream);
1566 spin_unlock_irqrestore(&priv->lock, flags);
1571 static int rsnd_hw_params(struct snd_soc_component *component,
1572 struct snd_pcm_substream *substream,
1573 struct snd_pcm_hw_params *hw_params)
1575 struct snd_soc_dai *dai = rsnd_substream_to_dai(substream);
1576 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
1577 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
1578 struct snd_soc_pcm_runtime *fe = snd_soc_substream_to_rtd(substream);
1581 * rsnd assumes that it might be used under DPCM if user want to use
1582 * channel / rate convert. Then, rsnd should be FE.
1583 * And then, this function will be called *after* BE settings.
1584 * this means, each BE already has fixuped hw_params.
1586 * dpcm_fe_dai_hw_params()
1587 * dpcm_be_dai_hw_params()
1589 io->converted_rate = 0;
1590 io->converted_chan = 0;
1591 if (fe->dai_link->dynamic) {
1592 struct rsnd_priv *priv = rsnd_io_to_priv(io);
1593 struct device *dev = rsnd_priv_to_dev(priv);
1594 struct snd_soc_dpcm *dpcm;
1595 int stream = substream->stream;
1597 for_each_dpcm_be(fe, stream, dpcm) {
1598 struct snd_soc_pcm_runtime *be = dpcm->be;
1599 struct snd_pcm_hw_params *be_params = &be->dpcm[stream].hw_params;
1601 if (params_channels(hw_params) != params_channels(be_params))
1602 io->converted_chan = params_channels(be_params);
1603 if (params_rate(hw_params) != params_rate(be_params))
1604 io->converted_rate = params_rate(be_params);
1606 if (io->converted_chan)
1607 dev_dbg(dev, "convert channels = %d\n", io->converted_chan);
1608 if (io->converted_rate) {
1610 * SRC supports convert rates from params_rate(hw_params)/k_down
1611 * to params_rate(hw_params)*k_up, where k_up is always 6, and
1612 * k_down depends on number of channels and SRC unit.
1613 * So all SRC units can upsample audio up to 6 times regardless
1614 * its number of channels. And all SRC units can downsample
1615 * 2 channel audio up to 6 times too.
1620 struct rsnd_mod *src_mod = rsnd_io_to_mod_src(io);
1622 dev_dbg(dev, "convert rate = %d\n", io->converted_rate);
1624 channel = io->converted_chan ? io->converted_chan :
1625 params_channels(hw_params);
1627 switch (rsnd_mod_id(src_mod)) {
1629 * SRC0 can downsample 4, 6 and 8 channel audio up to 4 times.
1630 * SRC1, SRC3 and SRC4 can downsample 4 channel audio
1632 * SRC1, SRC3 and SRC4 can downsample 6 and 8 channel audio
1633 * no more than twice.
1648 /* Other SRC units do not support more than 2 channels */
1654 if (params_rate(hw_params) > io->converted_rate * k_down) {
1655 hw_param_interval(hw_params, SNDRV_PCM_HW_PARAM_RATE)->min =
1656 io->converted_rate * k_down;
1657 hw_param_interval(hw_params, SNDRV_PCM_HW_PARAM_RATE)->max =
1658 io->converted_rate * k_down;
1659 hw_params->cmask |= SNDRV_PCM_HW_PARAM_RATE;
1660 } else if (params_rate(hw_params) * k_up < io->converted_rate) {
1661 hw_param_interval(hw_params, SNDRV_PCM_HW_PARAM_RATE)->min =
1662 DIV_ROUND_UP(io->converted_rate, k_up);
1663 hw_param_interval(hw_params, SNDRV_PCM_HW_PARAM_RATE)->max =
1664 DIV_ROUND_UP(io->converted_rate, k_up);
1665 hw_params->cmask |= SNDRV_PCM_HW_PARAM_RATE;
1669 * TBD: Max SRC input and output rates also depend on number
1670 * of channels and SRC unit:
1671 * SRC1, SRC3 and SRC4 do not support more than 128kHz
1672 * for 6 channel and 96kHz for 8 channel audio.
1673 * Perhaps this function should return EINVAL if the input or
1674 * the output rate exceeds the limitation.
1679 return rsnd_hw_update(substream, hw_params);
1682 static int rsnd_hw_free(struct snd_soc_component *component,
1683 struct snd_pcm_substream *substream)
1685 return rsnd_hw_update(substream, NULL);
1688 static snd_pcm_uframes_t rsnd_pointer(struct snd_soc_component *component,
1689 struct snd_pcm_substream *substream)
1691 struct snd_soc_dai *dai = rsnd_substream_to_dai(substream);
1692 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
1693 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
1694 snd_pcm_uframes_t pointer = 0;
1696 rsnd_dai_call(pointer, io, &pointer);
1704 static int rsnd_kctrl_info(struct snd_kcontrol *kctrl,
1705 struct snd_ctl_elem_info *uinfo)
1707 struct rsnd_kctrl_cfg *cfg = snd_kcontrol_chip(kctrl);
1710 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1711 uinfo->count = cfg->size;
1712 uinfo->value.enumerated.items = cfg->max;
1713 if (uinfo->value.enumerated.item >= cfg->max)
1714 uinfo->value.enumerated.item = cfg->max - 1;
1715 strscpy(uinfo->value.enumerated.name,
1716 cfg->texts[uinfo->value.enumerated.item],
1717 sizeof(uinfo->value.enumerated.name));
1719 uinfo->count = cfg->size;
1720 uinfo->value.integer.min = 0;
1721 uinfo->value.integer.max = cfg->max;
1722 uinfo->type = (cfg->max == 1) ?
1723 SNDRV_CTL_ELEM_TYPE_BOOLEAN :
1724 SNDRV_CTL_ELEM_TYPE_INTEGER;
1730 static int rsnd_kctrl_get(struct snd_kcontrol *kctrl,
1731 struct snd_ctl_elem_value *uc)
1733 struct rsnd_kctrl_cfg *cfg = snd_kcontrol_chip(kctrl);
1736 for (i = 0; i < cfg->size; i++)
1738 uc->value.enumerated.item[i] = cfg->val[i];
1740 uc->value.integer.value[i] = cfg->val[i];
1745 static int rsnd_kctrl_put(struct snd_kcontrol *kctrl,
1746 struct snd_ctl_elem_value *uc)
1748 struct rsnd_kctrl_cfg *cfg = snd_kcontrol_chip(kctrl);
1751 if (!cfg->accept(cfg->io))
1754 for (i = 0; i < cfg->size; i++) {
1756 change |= (uc->value.enumerated.item[i] != cfg->val[i]);
1757 cfg->val[i] = uc->value.enumerated.item[i];
1759 change |= (uc->value.integer.value[i] != cfg->val[i]);
1760 cfg->val[i] = uc->value.integer.value[i];
1764 if (change && cfg->update)
1765 cfg->update(cfg->io, cfg->mod);
1770 int rsnd_kctrl_accept_anytime(struct rsnd_dai_stream *io)
1775 int rsnd_kctrl_accept_runtime(struct rsnd_dai_stream *io)
1777 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
1778 struct rsnd_priv *priv = rsnd_io_to_priv(io);
1779 struct device *dev = rsnd_priv_to_dev(priv);
1782 dev_warn(dev, "Can't update kctrl when idle\n");
1789 struct rsnd_kctrl_cfg *rsnd_kctrl_init_m(struct rsnd_kctrl_cfg_m *cfg)
1791 cfg->cfg.val = cfg->val;
1796 struct rsnd_kctrl_cfg *rsnd_kctrl_init_s(struct rsnd_kctrl_cfg_s *cfg)
1798 cfg->cfg.val = &cfg->val;
1803 const char * const volume_ramp_rate[] = {
1804 "128 dB/1 step", /* 00000 */
1805 "64 dB/1 step", /* 00001 */
1806 "32 dB/1 step", /* 00010 */
1807 "16 dB/1 step", /* 00011 */
1808 "8 dB/1 step", /* 00100 */
1809 "4 dB/1 step", /* 00101 */
1810 "2 dB/1 step", /* 00110 */
1811 "1 dB/1 step", /* 00111 */
1812 "0.5 dB/1 step", /* 01000 */
1813 "0.25 dB/1 step", /* 01001 */
1814 "0.125 dB/1 step", /* 01010 = VOLUME_RAMP_MAX_MIX */
1815 "0.125 dB/2 steps", /* 01011 */
1816 "0.125 dB/4 steps", /* 01100 */
1817 "0.125 dB/8 steps", /* 01101 */
1818 "0.125 dB/16 steps", /* 01110 */
1819 "0.125 dB/32 steps", /* 01111 */
1820 "0.125 dB/64 steps", /* 10000 */
1821 "0.125 dB/128 steps", /* 10001 */
1822 "0.125 dB/256 steps", /* 10010 */
1823 "0.125 dB/512 steps", /* 10011 */
1824 "0.125 dB/1024 steps", /* 10100 */
1825 "0.125 dB/2048 steps", /* 10101 */
1826 "0.125 dB/4096 steps", /* 10110 */
1827 "0.125 dB/8192 steps", /* 10111 = VOLUME_RAMP_MAX_DVC */
1830 int rsnd_kctrl_new(struct rsnd_mod *mod,
1831 struct rsnd_dai_stream *io,
1832 struct snd_soc_pcm_runtime *rtd,
1833 const unsigned char *name,
1834 int (*accept)(struct rsnd_dai_stream *io),
1835 void (*update)(struct rsnd_dai_stream *io,
1836 struct rsnd_mod *mod),
1837 struct rsnd_kctrl_cfg *cfg,
1838 const char * const *texts,
1842 struct snd_card *card = rtd->card->snd_card;
1843 struct snd_kcontrol *kctrl;
1844 struct snd_kcontrol_new knew = {
1845 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1847 .info = rsnd_kctrl_info,
1849 .get = rsnd_kctrl_get,
1850 .put = rsnd_kctrl_put,
1855 * 1) Avoid duplicate register for DVC with MIX case
1856 * 2) Allow duplicate register for MIX
1857 * 3) re-register if card was rebinded
1859 list_for_each_entry(kctrl, &card->controls, list) {
1860 struct rsnd_kctrl_cfg *c = kctrl->private_data;
1866 if (size > RSND_MAX_CHANNELS)
1869 kctrl = snd_ctl_new1(&knew, cfg);
1873 ret = snd_ctl_add(card, kctrl);
1880 cfg->accept = accept;
1881 cfg->update = update;
1893 static const struct snd_soc_component_driver rsnd_soc_component = {
1895 .probe = rsnd_debugfs_probe,
1896 .hw_params = rsnd_hw_params,
1897 .hw_free = rsnd_hw_free,
1898 .pointer = rsnd_pointer,
1899 .legacy_dai_naming = 1,
1902 static int rsnd_rdai_continuance_probe(struct rsnd_priv *priv,
1903 struct rsnd_dai_stream *io)
1907 ret = rsnd_dai_call(probe, io, priv);
1908 if (ret == -EAGAIN) {
1909 struct rsnd_mod *ssi_mod = rsnd_io_to_mod_ssi(io);
1910 struct rsnd_mod *mod;
1914 * Fallback to PIO mode
1918 * call "remove" for SSI/SRC/DVC
1919 * SSI will be switch to PIO mode if it was DMA mode
1922 * rsnd_ssi_fallback()
1924 rsnd_dai_call(remove, io, priv);
1927 * remove all mod from io
1928 * and, re connect ssi
1930 for_each_rsnd_mod(i, mod, io)
1931 rsnd_dai_disconnect(mod, io, i);
1932 rsnd_dai_connect(ssi_mod, io, RSND_MOD_SSI);
1937 rsnd_dai_call(fallback, io, priv);
1941 * DAI has SSI which is PIO mode only now.
1943 ret = rsnd_dai_call(probe, io, priv);
1952 static int rsnd_probe(struct platform_device *pdev)
1954 struct rsnd_priv *priv;
1955 struct device *dev = &pdev->dev;
1956 struct rsnd_dai *rdai;
1957 int (*probe_func[])(struct rsnd_priv *priv) = {
1976 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
1981 priv->flags = (unsigned long)of_device_get_match_data(dev);
1982 spin_lock_init(&priv->lock);
1987 for (i = 0; i < ARRAY_SIZE(probe_func); i++) {
1988 ret = probe_func[i](priv);
1993 for_each_rsnd_dai(rdai, priv, i) {
1994 ret = rsnd_rdai_continuance_probe(priv, &rdai->playback);
1996 goto exit_snd_probe;
1998 ret = rsnd_rdai_continuance_probe(priv, &rdai->capture);
2000 goto exit_snd_probe;
2003 dev_set_drvdata(dev, priv);
2009 for (i = 0; priv->component_dais[i] > 0; i++) {
2010 int nr = priv->component_dais[i];
2012 ret = devm_snd_soc_register_component(dev, &rsnd_soc_component,
2013 priv->daidrv + ci, nr);
2015 dev_err(dev, "cannot snd component register\n");
2016 goto exit_snd_probe;
2022 pm_runtime_enable(dev);
2024 dev_info(dev, "probed\n");
2028 for_each_rsnd_dai(rdai, priv, i) {
2029 rsnd_dai_call(remove, &rdai->playback, priv);
2030 rsnd_dai_call(remove, &rdai->capture, priv);
2034 * adg is very special mod which can't use rsnd_dai_call(remove),
2035 * and it registers ADG clock on probe.
2036 * It should be unregister if probe failed.
2037 * Mainly it is assuming -EPROBE_DEFER case
2039 rsnd_adg_remove(priv);
2044 static void rsnd_remove(struct platform_device *pdev)
2046 struct rsnd_priv *priv = dev_get_drvdata(&pdev->dev);
2047 struct rsnd_dai *rdai;
2048 void (*remove_func[])(struct rsnd_priv *priv) = {
2060 pm_runtime_disable(&pdev->dev);
2062 for_each_rsnd_dai(rdai, priv, i) {
2065 ret = rsnd_dai_call(remove, &rdai->playback, priv);
2067 dev_warn(&pdev->dev, "Failed to remove playback dai #%d\n", i);
2069 ret = rsnd_dai_call(remove, &rdai->capture, priv);
2071 dev_warn(&pdev->dev, "Failed to remove capture dai #%d\n", i);
2074 for (i = 0; i < ARRAY_SIZE(remove_func); i++)
2075 remove_func[i](priv);
2078 static int __maybe_unused rsnd_suspend(struct device *dev)
2080 struct rsnd_priv *priv = dev_get_drvdata(dev);
2082 rsnd_adg_clk_disable(priv);
2087 static int __maybe_unused rsnd_resume(struct device *dev)
2089 struct rsnd_priv *priv = dev_get_drvdata(dev);
2091 rsnd_adg_clk_enable(priv);
2096 static const struct dev_pm_ops rsnd_pm_ops = {
2097 SET_SYSTEM_SLEEP_PM_OPS(rsnd_suspend, rsnd_resume)
2100 static struct platform_driver rsnd_driver = {
2102 .name = "rcar_sound",
2104 .of_match_table = rsnd_of_match,
2106 .probe = rsnd_probe,
2107 .remove_new = rsnd_remove,
2109 module_platform_driver(rsnd_driver);
2111 MODULE_LICENSE("GPL v2");
2112 MODULE_DESCRIPTION("Renesas R-Car audio driver");
2113 MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
2114 MODULE_ALIAS("platform:rcar-pcm-audio");