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- // SPDX-License-Identifier: GPL-2.0
- //
- // Renesas R-Car SRU/SCU/SSIU/SSI support
- //
- // Copyright (C) 2013 Renesas Solutions Corp.
- // Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
- //
- // Based on fsi.c
- // Kuninori Morimoto <morimoto.kuninori@renesas.com>
- /*
- * Renesas R-Car sound device structure
- *
- * Gen1
- *
- * SRU : Sound Routing Unit
- * - SRC : Sampling Rate Converter
- * - CMD
- * - CTU : Channel Count Conversion Unit
- * - MIX : Mixer
- * - DVC : Digital Volume and Mute Function
- * - SSI : Serial Sound Interface
- *
- * Gen2
- *
- * SCU : Sampling Rate Converter Unit
- * - SRC : Sampling Rate Converter
- * - CMD
- * - CTU : Channel Count Conversion Unit
- * - MIX : Mixer
- * - DVC : Digital Volume and Mute Function
- * SSIU : Serial Sound Interface Unit
- * - SSI : Serial Sound Interface
- */
- /*
- * driver data Image
- *
- * rsnd_priv
- * |
- * | ** this depends on Gen1/Gen2
- * |
- * +- gen
- * |
- * | ** these depend on data path
- * | ** gen and platform data control it
- * |
- * +- rdai[0]
- * | | sru ssiu ssi
- * | +- playback -> [mod] -> [mod] -> [mod] -> ...
- * | |
- * | | sru ssiu ssi
- * | +- capture -> [mod] -> [mod] -> [mod] -> ...
- * |
- * +- rdai[1]
- * | | sru ssiu ssi
- * | +- playback -> [mod] -> [mod] -> [mod] -> ...
- * | |
- * | | sru ssiu ssi
- * | +- capture -> [mod] -> [mod] -> [mod] -> ...
- * ...
- * |
- * | ** these control ssi
- * |
- * +- ssi
- * | |
- * | +- ssi[0]
- * | +- ssi[1]
- * | +- ssi[2]
- * | ...
- * |
- * | ** these control src
- * |
- * +- src
- * |
- * +- src[0]
- * +- src[1]
- * +- src[2]
- * ...
- *
- *
- * for_each_rsnd_dai(xx, priv, xx)
- * rdai[0] => rdai[1] => rdai[2] => ...
- *
- * for_each_rsnd_mod(xx, rdai, xx)
- * [mod] => [mod] => [mod] => ...
- *
- * rsnd_dai_call(xxx, fn )
- * [mod]->fn() -> [mod]->fn() -> [mod]->fn()...
- *
- */
- /*
- * you can enable below define if you don't need
- * DAI status debug message when debugging
- * see rsnd_dbg_dai_call()
- *
- * #define RSND_DEBUG_NO_DAI_CALL 1
- */
- #include <linux/pm_runtime.h>
- #include "rsnd.h"
- #define RSND_RATES SNDRV_PCM_RATE_8000_192000
- #define RSND_FMTS (SNDRV_PCM_FMTBIT_S8 |\
- SNDRV_PCM_FMTBIT_S16_LE |\
- SNDRV_PCM_FMTBIT_S24_LE)
- static const struct of_device_id rsnd_of_match[] = {
- { .compatible = "renesas,rcar_sound-gen1", .data = (void *)RSND_GEN1 },
- { .compatible = "renesas,rcar_sound-gen2", .data = (void *)RSND_GEN2 },
- { .compatible = "renesas,rcar_sound-gen3", .data = (void *)RSND_GEN3 },
- {},
- };
- MODULE_DEVICE_TABLE(of, rsnd_of_match);
- /*
- * rsnd_mod functions
- */
- void rsnd_mod_make_sure(struct rsnd_mod *mod, enum rsnd_mod_type type)
- {
- if (mod->type != type) {
- struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
- struct device *dev = rsnd_priv_to_dev(priv);
- dev_warn(dev, "%s[%d] is not your expected module\n",
- rsnd_mod_name(mod), rsnd_mod_id(mod));
- }
- }
- struct dma_chan *rsnd_mod_dma_req(struct rsnd_dai_stream *io,
- struct rsnd_mod *mod)
- {
- if (!mod || !mod->ops || !mod->ops->dma_req)
- return NULL;
- return mod->ops->dma_req(io, mod);
- }
- u32 *rsnd_mod_get_status(struct rsnd_dai_stream *io,
- struct rsnd_mod *mod,
- enum rsnd_mod_type type)
- {
- return &mod->status;
- }
- int rsnd_mod_init(struct rsnd_priv *priv,
- struct rsnd_mod *mod,
- struct rsnd_mod_ops *ops,
- struct clk *clk,
- u32* (*get_status)(struct rsnd_dai_stream *io,
- struct rsnd_mod *mod,
- enum rsnd_mod_type type),
- enum rsnd_mod_type type,
- int id)
- {
- int ret = clk_prepare(clk);
- if (ret)
- return ret;
- mod->id = id;
- mod->ops = ops;
- mod->type = type;
- mod->clk = clk;
- mod->priv = priv;
- mod->get_status = get_status;
- return ret;
- }
- void rsnd_mod_quit(struct rsnd_mod *mod)
- {
- clk_unprepare(mod->clk);
- mod->clk = NULL;
- }
- void rsnd_mod_interrupt(struct rsnd_mod *mod,
- void (*callback)(struct rsnd_mod *mod,
- struct rsnd_dai_stream *io))
- {
- struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
- struct rsnd_dai_stream *io;
- struct rsnd_dai *rdai;
- int i;
- for_each_rsnd_dai(rdai, priv, i) {
- io = &rdai->playback;
- if (mod == io->mod[mod->type])
- callback(mod, io);
- io = &rdai->capture;
- if (mod == io->mod[mod->type])
- callback(mod, io);
- }
- }
- int rsnd_io_is_working(struct rsnd_dai_stream *io)
- {
- /* see rsnd_dai_stream_init/quit() */
- if (io->substream)
- return snd_pcm_running(io->substream);
- return 0;
- }
- int rsnd_runtime_channel_original_with_params(struct rsnd_dai_stream *io,
- struct snd_pcm_hw_params *params)
- {
- struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
- /*
- * params will be added when refine
- * see
- * __rsnd_soc_hw_rule_rate()
- * __rsnd_soc_hw_rule_channels()
- */
- if (params)
- return params_channels(params);
- else
- return runtime->channels;
- }
- int rsnd_runtime_channel_after_ctu_with_params(struct rsnd_dai_stream *io,
- struct snd_pcm_hw_params *params)
- {
- int chan = rsnd_runtime_channel_original_with_params(io, params);
- struct rsnd_mod *ctu_mod = rsnd_io_to_mod_ctu(io);
- if (ctu_mod) {
- u32 converted_chan = rsnd_ctu_converted_channel(ctu_mod);
- if (converted_chan)
- return converted_chan;
- }
- return chan;
- }
- int rsnd_runtime_channel_for_ssi_with_params(struct rsnd_dai_stream *io,
- struct snd_pcm_hw_params *params)
- {
- struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
- int chan = rsnd_io_is_play(io) ?
- rsnd_runtime_channel_after_ctu_with_params(io, params) :
- rsnd_runtime_channel_original_with_params(io, params);
- /* Use Multi SSI */
- if (rsnd_runtime_is_ssi_multi(io))
- chan /= rsnd_rdai_ssi_lane_get(rdai);
- /* TDM Extend Mode needs 8ch */
- if (chan == 6)
- chan = 8;
- return chan;
- }
- int rsnd_runtime_is_ssi_multi(struct rsnd_dai_stream *io)
- {
- struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
- int lane = rsnd_rdai_ssi_lane_get(rdai);
- int chan = rsnd_io_is_play(io) ?
- rsnd_runtime_channel_after_ctu(io) :
- rsnd_runtime_channel_original(io);
- return (chan > 2) && (lane > 1);
- }
- int rsnd_runtime_is_ssi_tdm(struct rsnd_dai_stream *io)
- {
- return rsnd_runtime_channel_for_ssi(io) >= 6;
- }
- /*
- * ADINR function
- */
- u32 rsnd_get_adinr_bit(struct rsnd_mod *mod, struct rsnd_dai_stream *io)
- {
- struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
- struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
- struct device *dev = rsnd_priv_to_dev(priv);
- switch (snd_pcm_format_width(runtime->format)) {
- case 8:
- return 16 << 16;
- case 16:
- return 8 << 16;
- case 24:
- return 0 << 16;
- }
- dev_warn(dev, "not supported sample bits\n");
- return 0;
- }
- /*
- * DALIGN function
- */
- u32 rsnd_get_dalign(struct rsnd_mod *mod, struct rsnd_dai_stream *io)
- {
- struct rsnd_mod *ssiu = rsnd_io_to_mod_ssiu(io);
- struct rsnd_mod *target;
- struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
- /*
- * *Hardware* L/R and *Software* L/R are inverted for 16bit data.
- * 31..16 15...0
- * HW: [L ch] [R ch]
- * SW: [R ch] [L ch]
- * We need to care about inversion timing to control
- * Playback/Capture correctly.
- * The point is [DVC] needs *Hardware* L/R, [MEM] needs *Software* L/R
- *
- * sL/R : software L/R
- * hL/R : hardware L/R
- * (*) : conversion timing
- *
- * Playback
- * sL/R (*) hL/R hL/R hL/R hL/R hL/R
- * [MEM] -> [SRC] -> [DVC] -> [CMD] -> [SSIU] -> [SSI] -> codec
- *
- * Capture
- * hL/R hL/R hL/R hL/R hL/R (*) sL/R
- * codec -> [SSI] -> [SSIU] -> [SRC] -> [DVC] -> [CMD] -> [MEM]
- */
- if (rsnd_io_is_play(io)) {
- struct rsnd_mod *src = rsnd_io_to_mod_src(io);
- target = src ? src : ssiu;
- } else {
- struct rsnd_mod *cmd = rsnd_io_to_mod_cmd(io);
- target = cmd ? cmd : ssiu;
- }
- /* Non target mod or non 16bit needs normal DALIGN */
- if ((snd_pcm_format_width(runtime->format) != 16) ||
- (mod != target))
- return 0x76543210;
- /* Target mod needs inverted DALIGN when 16bit */
- else
- return 0x67452301;
- }
- u32 rsnd_get_busif_shift(struct rsnd_dai_stream *io, struct rsnd_mod *mod)
- {
- enum rsnd_mod_type playback_mods[] = {
- RSND_MOD_SRC,
- RSND_MOD_CMD,
- RSND_MOD_SSIU,
- };
- enum rsnd_mod_type capture_mods[] = {
- RSND_MOD_CMD,
- RSND_MOD_SRC,
- RSND_MOD_SSIU,
- };
- struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
- struct rsnd_mod *tmod = NULL;
- enum rsnd_mod_type *mods =
- rsnd_io_is_play(io) ?
- playback_mods : capture_mods;
- int i;
- /*
- * This is needed for 24bit data
- * We need to shift 8bit
- *
- * Linux 24bit data is located as 0x00******
- * HW 24bit data is located as 0x******00
- *
- */
- if (snd_pcm_format_width(runtime->format) != 24)
- return 0;
- for (i = 0; i < ARRAY_SIZE(playback_mods); i++) {
- tmod = rsnd_io_to_mod(io, mods[i]);
- if (tmod)
- break;
- }
- if (tmod != mod)
- return 0;
- if (rsnd_io_is_play(io))
- return (0 << 20) | /* shift to Left */
- (8 << 16); /* 8bit */
- else
- return (1 << 20) | /* shift to Right */
- (8 << 16); /* 8bit */
- }
- /*
- * rsnd_dai functions
- */
- struct rsnd_mod *rsnd_mod_next(int *iterator,
- struct rsnd_dai_stream *io,
- enum rsnd_mod_type *array,
- int array_size)
- {
- struct rsnd_mod *mod;
- enum rsnd_mod_type type;
- int max = array ? array_size : RSND_MOD_MAX;
- for (; *iterator < max; (*iterator)++) {
- type = (array) ? array[*iterator] : *iterator;
- mod = rsnd_io_to_mod(io, type);
- if (mod)
- return mod;
- }
- return NULL;
- }
- static enum rsnd_mod_type rsnd_mod_sequence[][RSND_MOD_MAX] = {
- {
- /* CAPTURE */
- RSND_MOD_AUDMAPP,
- RSND_MOD_AUDMA,
- RSND_MOD_DVC,
- RSND_MOD_MIX,
- RSND_MOD_CTU,
- RSND_MOD_CMD,
- RSND_MOD_SRC,
- RSND_MOD_SSIU,
- RSND_MOD_SSIM3,
- RSND_MOD_SSIM2,
- RSND_MOD_SSIM1,
- RSND_MOD_SSIP,
- RSND_MOD_SSI,
- }, {
- /* PLAYBACK */
- RSND_MOD_AUDMAPP,
- RSND_MOD_AUDMA,
- RSND_MOD_SSIM3,
- RSND_MOD_SSIM2,
- RSND_MOD_SSIM1,
- RSND_MOD_SSIP,
- RSND_MOD_SSI,
- RSND_MOD_SSIU,
- RSND_MOD_DVC,
- RSND_MOD_MIX,
- RSND_MOD_CTU,
- RSND_MOD_CMD,
- RSND_MOD_SRC,
- },
- };
- static int rsnd_status_update(u32 *status,
- int shift, int add, int timing)
- {
- u32 mask = 0xF << shift;
- u8 val = (*status >> shift) & 0xF;
- u8 next_val = (val + add) & 0xF;
- int func_call = (val == timing);
- if (next_val == 0xF) /* underflow case */
- func_call = 0;
- else
- *status = (*status & ~mask) + (next_val << shift);
- return func_call;
- }
- #define rsnd_dai_call(fn, io, param...) \
- ({ \
- struct device *dev = rsnd_priv_to_dev(rsnd_io_to_priv(io)); \
- struct rsnd_mod *mod; \
- int is_play = rsnd_io_is_play(io); \
- int ret = 0, i; \
- enum rsnd_mod_type *types = rsnd_mod_sequence[is_play]; \
- for_each_rsnd_mod_arrays(i, mod, io, types, RSND_MOD_MAX) { \
- int tmp = 0; \
- u32 *status = mod->get_status(io, mod, types[i]); \
- int func_call = rsnd_status_update(status, \
- __rsnd_mod_shift_##fn, \
- __rsnd_mod_add_##fn, \
- __rsnd_mod_call_##fn); \
- rsnd_dbg_dai_call(dev, "%s[%d]\t0x%08x %s\n", \
- rsnd_mod_name(mod), rsnd_mod_id(mod), *status, \
- (func_call && (mod)->ops->fn) ? #fn : ""); \
- if (func_call && (mod)->ops->fn) \
- tmp = (mod)->ops->fn(mod, io, param); \
- if (tmp) \
- dev_err(dev, "%s[%d] : %s error %d\n", \
- rsnd_mod_name(mod), rsnd_mod_id(mod), \
- #fn, tmp); \
- ret |= tmp; \
- } \
- ret; \
- })
- int rsnd_dai_connect(struct rsnd_mod *mod,
- struct rsnd_dai_stream *io,
- enum rsnd_mod_type type)
- {
- struct rsnd_priv *priv;
- struct device *dev;
- if (!mod)
- return -EIO;
- if (io->mod[type] == mod)
- return 0;
- if (io->mod[type])
- return -EINVAL;
- priv = rsnd_mod_to_priv(mod);
- dev = rsnd_priv_to_dev(priv);
- io->mod[type] = mod;
- dev_dbg(dev, "%s[%d] is connected to io (%s)\n",
- rsnd_mod_name(mod), rsnd_mod_id(mod),
- rsnd_io_is_play(io) ? "Playback" : "Capture");
- return 0;
- }
- static void rsnd_dai_disconnect(struct rsnd_mod *mod,
- struct rsnd_dai_stream *io,
- enum rsnd_mod_type type)
- {
- io->mod[type] = NULL;
- }
- int rsnd_rdai_channels_ctrl(struct rsnd_dai *rdai,
- int max_channels)
- {
- if (max_channels > 0)
- rdai->max_channels = max_channels;
- return rdai->max_channels;
- }
- int rsnd_rdai_ssi_lane_ctrl(struct rsnd_dai *rdai,
- int ssi_lane)
- {
- if (ssi_lane > 0)
- rdai->ssi_lane = ssi_lane;
- return rdai->ssi_lane;
- }
- int rsnd_rdai_width_ctrl(struct rsnd_dai *rdai, int width)
- {
- if (width > 0)
- rdai->chan_width = width;
- return rdai->chan_width;
- }
- struct rsnd_dai *rsnd_rdai_get(struct rsnd_priv *priv, int id)
- {
- if ((id < 0) || (id >= rsnd_rdai_nr(priv)))
- return NULL;
- return priv->rdai + id;
- }
- static struct snd_soc_dai_driver
- *rsnd_daidrv_get(struct rsnd_priv *priv, int id)
- {
- if ((id < 0) || (id >= rsnd_rdai_nr(priv)))
- return NULL;
- return priv->daidrv + id;
- }
- #define rsnd_dai_to_priv(dai) snd_soc_dai_get_drvdata(dai)
- static struct rsnd_dai *rsnd_dai_to_rdai(struct snd_soc_dai *dai)
- {
- struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
- return rsnd_rdai_get(priv, dai->id);
- }
- /*
- * rsnd_soc_dai functions
- */
- void rsnd_dai_period_elapsed(struct rsnd_dai_stream *io)
- {
- struct snd_pcm_substream *substream = io->substream;
- /*
- * this function should be called...
- *
- * - if rsnd_dai_pointer_update() returns true
- * - without spin lock
- */
- snd_pcm_period_elapsed(substream);
- }
- static void rsnd_dai_stream_init(struct rsnd_dai_stream *io,
- struct snd_pcm_substream *substream)
- {
- io->substream = substream;
- }
- static void rsnd_dai_stream_quit(struct rsnd_dai_stream *io)
- {
- io->substream = NULL;
- }
- static
- struct snd_soc_dai *rsnd_substream_to_dai(struct snd_pcm_substream *substream)
- {
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- return rtd->cpu_dai;
- }
- static
- struct rsnd_dai_stream *rsnd_rdai_to_io(struct rsnd_dai *rdai,
- struct snd_pcm_substream *substream)
- {
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- return &rdai->playback;
- else
- return &rdai->capture;
- }
- static int rsnd_soc_dai_trigger(struct snd_pcm_substream *substream, int cmd,
- struct snd_soc_dai *dai)
- {
- struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
- struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
- struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
- int ret;
- unsigned long flags;
- spin_lock_irqsave(&priv->lock, flags);
- switch (cmd) {
- case SNDRV_PCM_TRIGGER_START:
- case SNDRV_PCM_TRIGGER_RESUME:
- ret = rsnd_dai_call(init, io, priv);
- if (ret < 0)
- goto dai_trigger_end;
- ret = rsnd_dai_call(start, io, priv);
- if (ret < 0)
- goto dai_trigger_end;
- ret = rsnd_dai_call(irq, io, priv, 1);
- if (ret < 0)
- goto dai_trigger_end;
- break;
- case SNDRV_PCM_TRIGGER_STOP:
- case SNDRV_PCM_TRIGGER_SUSPEND:
- ret = rsnd_dai_call(irq, io, priv, 0);
- ret |= rsnd_dai_call(stop, io, priv);
- ret |= rsnd_dai_call(quit, io, priv);
- break;
- default:
- ret = -EINVAL;
- }
- dai_trigger_end:
- spin_unlock_irqrestore(&priv->lock, flags);
- return ret;
- }
- static int rsnd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
- {
- struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
- /* set master/slave audio interface */
- switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
- case SND_SOC_DAIFMT_CBM_CFM:
- rdai->clk_master = 0;
- break;
- case SND_SOC_DAIFMT_CBS_CFS:
- rdai->clk_master = 1; /* codec is slave, cpu is master */
- break;
- default:
- return -EINVAL;
- }
- /* set format */
- switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
- case SND_SOC_DAIFMT_I2S:
- rdai->sys_delay = 0;
- rdai->data_alignment = 0;
- rdai->frm_clk_inv = 0;
- break;
- case SND_SOC_DAIFMT_LEFT_J:
- case SND_SOC_DAIFMT_DSP_B:
- rdai->sys_delay = 1;
- rdai->data_alignment = 0;
- rdai->frm_clk_inv = 1;
- break;
- case SND_SOC_DAIFMT_RIGHT_J:
- rdai->sys_delay = 1;
- rdai->data_alignment = 1;
- rdai->frm_clk_inv = 1;
- break;
- case SND_SOC_DAIFMT_DSP_A:
- rdai->sys_delay = 0;
- rdai->data_alignment = 0;
- rdai->frm_clk_inv = 1;
- break;
- }
- /* set clock inversion */
- switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
- case SND_SOC_DAIFMT_NB_IF:
- rdai->frm_clk_inv = !rdai->frm_clk_inv;
- break;
- case SND_SOC_DAIFMT_IB_NF:
- rdai->bit_clk_inv = !rdai->bit_clk_inv;
- break;
- case SND_SOC_DAIFMT_IB_IF:
- rdai->bit_clk_inv = !rdai->bit_clk_inv;
- rdai->frm_clk_inv = !rdai->frm_clk_inv;
- break;
- case SND_SOC_DAIFMT_NB_NF:
- default:
- break;
- }
- return 0;
- }
- static int rsnd_soc_set_dai_tdm_slot(struct snd_soc_dai *dai,
- u32 tx_mask, u32 rx_mask,
- int slots, int slot_width)
- {
- struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
- struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
- struct device *dev = rsnd_priv_to_dev(priv);
- switch (slot_width) {
- case 16:
- case 24:
- case 32:
- break;
- default:
- dev_err(dev, "unsupported slot width value: %d\n", slot_width);
- return -EINVAL;
- }
- switch (slots) {
- case 2:
- case 6:
- case 8:
- /* TDM Extend Mode */
- rsnd_rdai_channels_set(rdai, slots);
- rsnd_rdai_ssi_lane_set(rdai, 1);
- rsnd_rdai_width_set(rdai, slot_width);
- break;
- default:
- dev_err(dev, "unsupported TDM slots (%d)\n", slots);
- return -EINVAL;
- }
- return 0;
- }
- static unsigned int rsnd_soc_hw_channels_list[] = {
- 2, 6, 8,
- };
- static unsigned int rsnd_soc_hw_rate_list[] = {
- 8000,
- 11025,
- 16000,
- 22050,
- 32000,
- 44100,
- 48000,
- 64000,
- 88200,
- 96000,
- 176400,
- 192000,
- };
- static int rsnd_soc_hw_rule(struct rsnd_dai *rdai,
- unsigned int *list, int list_num,
- struct snd_interval *baseline, struct snd_interval *iv)
- {
- struct snd_interval p;
- unsigned int rate;
- int i;
- snd_interval_any(&p);
- p.min = UINT_MAX;
- p.max = 0;
- for (i = 0; i < list_num; i++) {
- if (!snd_interval_test(iv, list[i]))
- continue;
- rate = rsnd_ssi_clk_query(rdai,
- baseline->min, list[i], NULL);
- if (rate > 0) {
- p.min = min(p.min, list[i]);
- p.max = max(p.max, list[i]);
- }
- rate = rsnd_ssi_clk_query(rdai,
- baseline->max, list[i], NULL);
- if (rate > 0) {
- p.min = min(p.min, list[i]);
- p.max = max(p.max, list[i]);
- }
- }
- return snd_interval_refine(iv, &p);
- }
- static int rsnd_soc_hw_rule_rate(struct snd_pcm_hw_params *params,
- struct snd_pcm_hw_rule *rule)
- {
- struct snd_interval *ic_ = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
- struct snd_interval *ir = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
- struct snd_interval ic;
- struct rsnd_dai_stream *io = rule->private;
- struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
- /*
- * possible sampling rate limitation is same as
- * 2ch if it supports multi ssi
- * and same as 8ch if TDM 6ch (see rsnd_ssi_config_init())
- */
- ic = *ic_;
- ic.min =
- ic.max = rsnd_runtime_channel_for_ssi_with_params(io, params);
- return rsnd_soc_hw_rule(rdai, rsnd_soc_hw_rate_list,
- ARRAY_SIZE(rsnd_soc_hw_rate_list),
- &ic, ir);
- }
- static int rsnd_soc_hw_rule_channels(struct snd_pcm_hw_params *params,
- struct snd_pcm_hw_rule *rule)
- {
- struct snd_interval *ic_ = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
- struct snd_interval *ir = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
- struct snd_interval ic;
- struct rsnd_dai_stream *io = rule->private;
- struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
- /*
- * possible sampling rate limitation is same as
- * 2ch if it supports multi ssi
- * and same as 8ch if TDM 6ch (see rsnd_ssi_config_init())
- */
- ic = *ic_;
- ic.min =
- ic.max = rsnd_runtime_channel_for_ssi_with_params(io, params);
- return rsnd_soc_hw_rule(rdai, rsnd_soc_hw_channels_list,
- ARRAY_SIZE(rsnd_soc_hw_channels_list),
- ir, &ic);
- }
- static const struct snd_pcm_hardware rsnd_pcm_hardware = {
- .info = SNDRV_PCM_INFO_INTERLEAVED |
- SNDRV_PCM_INFO_MMAP |
- SNDRV_PCM_INFO_MMAP_VALID,
- .buffer_bytes_max = 64 * 1024,
- .period_bytes_min = 32,
- .period_bytes_max = 8192,
- .periods_min = 1,
- .periods_max = 32,
- .fifo_size = 256,
- };
- static int rsnd_soc_dai_startup(struct snd_pcm_substream *substream,
- struct snd_soc_dai *dai)
- {
- struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
- struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai);
- struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
- struct snd_pcm_hw_constraint_list *constraint = &rdai->constraint;
- struct snd_pcm_runtime *runtime = substream->runtime;
- unsigned int max_channels = rsnd_rdai_channels_get(rdai);
- int ret;
- int i;
- rsnd_dai_stream_init(io, substream);
- /*
- * Channel Limitation
- * It depends on Platform design
- */
- constraint->list = rsnd_soc_hw_channels_list;
- constraint->count = 0;
- constraint->mask = 0;
- for (i = 0; i < ARRAY_SIZE(rsnd_soc_hw_channels_list); i++) {
- if (rsnd_soc_hw_channels_list[i] > max_channels)
- break;
- constraint->count = i + 1;
- }
- snd_soc_set_runtime_hwparams(substream, &rsnd_pcm_hardware);
- snd_pcm_hw_constraint_list(runtime, 0,
- SNDRV_PCM_HW_PARAM_CHANNELS, constraint);
- snd_pcm_hw_constraint_integer(runtime,
- SNDRV_PCM_HW_PARAM_PERIODS);
- /*
- * Sampling Rate / Channel Limitation
- * It depends on Clock Master Mode
- */
- if (rsnd_rdai_is_clk_master(rdai)) {
- int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
- snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
- rsnd_soc_hw_rule_rate,
- is_play ? &rdai->playback : &rdai->capture,
- SNDRV_PCM_HW_PARAM_CHANNELS, -1);
- snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
- rsnd_soc_hw_rule_channels,
- is_play ? &rdai->playback : &rdai->capture,
- SNDRV_PCM_HW_PARAM_RATE, -1);
- }
- /*
- * call rsnd_dai_call without spinlock
- */
- ret = rsnd_dai_call(nolock_start, io, priv);
- if (ret < 0)
- rsnd_dai_call(nolock_stop, io, priv);
- return ret;
- }
- static void rsnd_soc_dai_shutdown(struct snd_pcm_substream *substream,
- struct snd_soc_dai *dai)
- {
- struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
- struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai);
- struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
- /*
- * call rsnd_dai_call without spinlock
- */
- rsnd_dai_call(nolock_stop, io, priv);
- rsnd_dai_stream_quit(io);
- }
- static int rsnd_soc_dai_prepare(struct snd_pcm_substream *substream,
- struct snd_soc_dai *dai)
- {
- struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
- struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
- struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
- return rsnd_dai_call(prepare, io, priv);
- }
- static const struct snd_soc_dai_ops rsnd_soc_dai_ops = {
- .startup = rsnd_soc_dai_startup,
- .shutdown = rsnd_soc_dai_shutdown,
- .trigger = rsnd_soc_dai_trigger,
- .set_fmt = rsnd_soc_dai_set_fmt,
- .set_tdm_slot = rsnd_soc_set_dai_tdm_slot,
- .prepare = rsnd_soc_dai_prepare,
- };
- void rsnd_parse_connect_common(struct rsnd_dai *rdai,
- struct rsnd_mod* (*mod_get)(struct rsnd_priv *priv, int id),
- struct device_node *node,
- struct device_node *playback,
- struct device_node *capture)
- {
- struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai);
- struct device_node *np;
- struct rsnd_mod *mod;
- int i;
- if (!node)
- return;
- i = 0;
- for_each_child_of_node(node, np) {
- mod = mod_get(priv, i);
- if (np == playback)
- rsnd_dai_connect(mod, &rdai->playback, mod->type);
- if (np == capture)
- rsnd_dai_connect(mod, &rdai->capture, mod->type);
- i++;
- }
- of_node_put(node);
- }
- static struct device_node *rsnd_dai_of_node(struct rsnd_priv *priv,
- int *is_graph)
- {
- struct device *dev = rsnd_priv_to_dev(priv);
- struct device_node *np = dev->of_node;
- struct device_node *dai_node;
- struct device_node *ret;
- *is_graph = 0;
- /*
- * parse both previous dai (= rcar_sound,dai), and
- * graph dai (= ports/port)
- */
- dai_node = of_get_child_by_name(np, RSND_NODE_DAI);
- if (dai_node) {
- ret = dai_node;
- goto of_node_compatible;
- }
- ret = np;
- dai_node = of_graph_get_next_endpoint(np, NULL);
- if (dai_node)
- goto of_node_graph;
- return NULL;
- of_node_graph:
- *is_graph = 1;
- of_node_compatible:
- of_node_put(dai_node);
- return ret;
- }
- static void __rsnd_dai_probe(struct rsnd_priv *priv,
- struct device_node *dai_np,
- int dai_i)
- {
- struct device_node *playback, *capture;
- struct rsnd_dai_stream *io_playback;
- struct rsnd_dai_stream *io_capture;
- struct snd_soc_dai_driver *drv;
- struct rsnd_dai *rdai;
- struct device *dev = rsnd_priv_to_dev(priv);
- int io_i;
- rdai = rsnd_rdai_get(priv, dai_i);
- drv = rsnd_daidrv_get(priv, dai_i);
- io_playback = &rdai->playback;
- io_capture = &rdai->capture;
- snprintf(rdai->name, RSND_DAI_NAME_SIZE, "rsnd-dai.%d", dai_i);
- rdai->priv = priv;
- drv->name = rdai->name;
- drv->ops = &rsnd_soc_dai_ops;
- snprintf(rdai->playback.name, RSND_DAI_NAME_SIZE,
- "DAI%d Playback", dai_i);
- drv->playback.rates = RSND_RATES;
- drv->playback.formats = RSND_FMTS;
- drv->playback.channels_min = 2;
- drv->playback.channels_max = 8;
- drv->playback.stream_name = rdai->playback.name;
- snprintf(rdai->capture.name, RSND_DAI_NAME_SIZE,
- "DAI%d Capture", dai_i);
- drv->capture.rates = RSND_RATES;
- drv->capture.formats = RSND_FMTS;
- drv->capture.channels_min = 2;
- drv->capture.channels_max = 8;
- drv->capture.stream_name = rdai->capture.name;
- rdai->playback.rdai = rdai;
- rdai->capture.rdai = rdai;
- rsnd_rdai_channels_set(rdai, 2); /* default 2ch */
- rsnd_rdai_ssi_lane_set(rdai, 1); /* default 1lane */
- rsnd_rdai_width_set(rdai, 32); /* default 32bit width */
- for (io_i = 0;; io_i++) {
- playback = of_parse_phandle(dai_np, "playback", io_i);
- capture = of_parse_phandle(dai_np, "capture", io_i);
- if (!playback && !capture)
- break;
- rsnd_parse_connect_ssi(rdai, playback, capture);
- rsnd_parse_connect_src(rdai, playback, capture);
- rsnd_parse_connect_ctu(rdai, playback, capture);
- rsnd_parse_connect_mix(rdai, playback, capture);
- rsnd_parse_connect_dvc(rdai, playback, capture);
- of_node_put(playback);
- of_node_put(capture);
- }
- if (rsnd_ssi_is_pin_sharing(io_capture) ||
- rsnd_ssi_is_pin_sharing(io_playback)) {
- /* should have symmetric_rates if pin sharing */
- drv->symmetric_rates = 1;
- }
- dev_dbg(dev, "%s (%s/%s)\n", rdai->name,
- rsnd_io_to_mod_ssi(io_playback) ? "play" : " -- ",
- rsnd_io_to_mod_ssi(io_capture) ? "capture" : " -- ");
- }
- static int rsnd_dai_probe(struct rsnd_priv *priv)
- {
- struct device_node *dai_node;
- struct device_node *dai_np;
- struct snd_soc_dai_driver *rdrv;
- struct device *dev = rsnd_priv_to_dev(priv);
- struct rsnd_dai *rdai;
- int nr;
- int is_graph;
- int dai_i;
- dai_node = rsnd_dai_of_node(priv, &is_graph);
- if (is_graph)
- nr = of_graph_get_endpoint_count(dai_node);
- else
- nr = of_get_child_count(dai_node);
- if (!nr)
- return -EINVAL;
- rdrv = devm_kcalloc(dev, nr, sizeof(*rdrv), GFP_KERNEL);
- rdai = devm_kcalloc(dev, nr, sizeof(*rdai), GFP_KERNEL);
- if (!rdrv || !rdai)
- return -ENOMEM;
- priv->rdai_nr = nr;
- priv->daidrv = rdrv;
- priv->rdai = rdai;
- /*
- * parse all dai
- */
- dai_i = 0;
- if (is_graph) {
- for_each_endpoint_of_node(dai_node, dai_np) {
- __rsnd_dai_probe(priv, dai_np, dai_i);
- rsnd_ssi_parse_hdmi_connection(priv, dai_np, dai_i);
- dai_i++;
- }
- } else {
- for_each_child_of_node(dai_node, dai_np)
- __rsnd_dai_probe(priv, dai_np, dai_i++);
- }
- return 0;
- }
- /*
- * pcm ops
- */
- static int rsnd_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *hw_params)
- {
- struct snd_soc_dai *dai = rsnd_substream_to_dai(substream);
- struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
- struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
- int ret;
- ret = rsnd_dai_call(hw_params, io, substream, hw_params);
- if (ret)
- return ret;
- return snd_pcm_lib_malloc_pages(substream,
- params_buffer_bytes(hw_params));
- }
- static snd_pcm_uframes_t rsnd_pointer(struct snd_pcm_substream *substream)
- {
- struct snd_soc_dai *dai = rsnd_substream_to_dai(substream);
- struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
- struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
- snd_pcm_uframes_t pointer = 0;
- rsnd_dai_call(pointer, io, &pointer);
- return pointer;
- }
- static const struct snd_pcm_ops rsnd_pcm_ops = {
- .ioctl = snd_pcm_lib_ioctl,
- .hw_params = rsnd_hw_params,
- .hw_free = snd_pcm_lib_free_pages,
- .pointer = rsnd_pointer,
- };
- /*
- * snd_kcontrol
- */
- static int rsnd_kctrl_info(struct snd_kcontrol *kctrl,
- struct snd_ctl_elem_info *uinfo)
- {
- struct rsnd_kctrl_cfg *cfg = snd_kcontrol_chip(kctrl);
- if (cfg->texts) {
- uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
- uinfo->count = cfg->size;
- uinfo->value.enumerated.items = cfg->max;
- if (uinfo->value.enumerated.item >= cfg->max)
- uinfo->value.enumerated.item = cfg->max - 1;
- strlcpy(uinfo->value.enumerated.name,
- cfg->texts[uinfo->value.enumerated.item],
- sizeof(uinfo->value.enumerated.name));
- } else {
- uinfo->count = cfg->size;
- uinfo->value.integer.min = 0;
- uinfo->value.integer.max = cfg->max;
- uinfo->type = (cfg->max == 1) ?
- SNDRV_CTL_ELEM_TYPE_BOOLEAN :
- SNDRV_CTL_ELEM_TYPE_INTEGER;
- }
- return 0;
- }
- static int rsnd_kctrl_get(struct snd_kcontrol *kctrl,
- struct snd_ctl_elem_value *uc)
- {
- struct rsnd_kctrl_cfg *cfg = snd_kcontrol_chip(kctrl);
- int i;
- for (i = 0; i < cfg->size; i++)
- if (cfg->texts)
- uc->value.enumerated.item[i] = cfg->val[i];
- else
- uc->value.integer.value[i] = cfg->val[i];
- return 0;
- }
- static int rsnd_kctrl_put(struct snd_kcontrol *kctrl,
- struct snd_ctl_elem_value *uc)
- {
- struct rsnd_kctrl_cfg *cfg = snd_kcontrol_chip(kctrl);
- int i, change = 0;
- if (!cfg->accept(cfg->io))
- return 0;
- for (i = 0; i < cfg->size; i++) {
- if (cfg->texts) {
- change |= (uc->value.enumerated.item[i] != cfg->val[i]);
- cfg->val[i] = uc->value.enumerated.item[i];
- } else {
- change |= (uc->value.integer.value[i] != cfg->val[i]);
- cfg->val[i] = uc->value.integer.value[i];
- }
- }
- if (change && cfg->update)
- cfg->update(cfg->io, cfg->mod);
- return change;
- }
- int rsnd_kctrl_accept_anytime(struct rsnd_dai_stream *io)
- {
- return 1;
- }
- int rsnd_kctrl_accept_runtime(struct rsnd_dai_stream *io)
- {
- struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
- struct rsnd_priv *priv = rsnd_io_to_priv(io);
- struct device *dev = rsnd_priv_to_dev(priv);
- if (!runtime) {
- dev_warn(dev, "Can't update kctrl when idle\n");
- return 0;
- }
- return 1;
- }
- struct rsnd_kctrl_cfg *rsnd_kctrl_init_m(struct rsnd_kctrl_cfg_m *cfg)
- {
- cfg->cfg.val = cfg->val;
- return &cfg->cfg;
- }
- struct rsnd_kctrl_cfg *rsnd_kctrl_init_s(struct rsnd_kctrl_cfg_s *cfg)
- {
- cfg->cfg.val = &cfg->val;
- return &cfg->cfg;
- }
- const char * const volume_ramp_rate[] = {
- "128 dB/1 step", /* 00000 */
- "64 dB/1 step", /* 00001 */
- "32 dB/1 step", /* 00010 */
- "16 dB/1 step", /* 00011 */
- "8 dB/1 step", /* 00100 */
- "4 dB/1 step", /* 00101 */
- "2 dB/1 step", /* 00110 */
- "1 dB/1 step", /* 00111 */
- "0.5 dB/1 step", /* 01000 */
- "0.25 dB/1 step", /* 01001 */
- "0.125 dB/1 step", /* 01010 = VOLUME_RAMP_MAX_MIX */
- "0.125 dB/2 steps", /* 01011 */
- "0.125 dB/4 steps", /* 01100 */
- "0.125 dB/8 steps", /* 01101 */
- "0.125 dB/16 steps", /* 01110 */
- "0.125 dB/32 steps", /* 01111 */
- "0.125 dB/64 steps", /* 10000 */
- "0.125 dB/128 steps", /* 10001 */
- "0.125 dB/256 steps", /* 10010 */
- "0.125 dB/512 steps", /* 10011 */
- "0.125 dB/1024 steps", /* 10100 */
- "0.125 dB/2048 steps", /* 10101 */
- "0.125 dB/4096 steps", /* 10110 */
- "0.125 dB/8192 steps", /* 10111 = VOLUME_RAMP_MAX_DVC */
- };
- int rsnd_kctrl_new(struct rsnd_mod *mod,
- struct rsnd_dai_stream *io,
- struct snd_soc_pcm_runtime *rtd,
- const unsigned char *name,
- int (*accept)(struct rsnd_dai_stream *io),
- void (*update)(struct rsnd_dai_stream *io,
- struct rsnd_mod *mod),
- struct rsnd_kctrl_cfg *cfg,
- const char * const *texts,
- int size,
- u32 max)
- {
- struct snd_card *card = rtd->card->snd_card;
- struct snd_kcontrol *kctrl;
- struct snd_kcontrol_new knew = {
- .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
- .name = name,
- .info = rsnd_kctrl_info,
- .index = rtd->num,
- .get = rsnd_kctrl_get,
- .put = rsnd_kctrl_put,
- };
- int ret;
- if (size > RSND_MAX_CHANNELS)
- return -EINVAL;
- kctrl = snd_ctl_new1(&knew, cfg);
- if (!kctrl)
- return -ENOMEM;
- ret = snd_ctl_add(card, kctrl);
- if (ret < 0)
- return ret;
- cfg->texts = texts;
- cfg->max = max;
- cfg->size = size;
- cfg->accept = accept;
- cfg->update = update;
- cfg->card = card;
- cfg->kctrl = kctrl;
- cfg->io = io;
- cfg->mod = mod;
- return 0;
- }
- /*
- * snd_soc_component
- */
- #define PREALLOC_BUFFER (32 * 1024)
- #define PREALLOC_BUFFER_MAX (32 * 1024)
- static int rsnd_preallocate_pages(struct snd_soc_pcm_runtime *rtd,
- struct rsnd_dai_stream *io,
- int stream)
- {
- struct rsnd_priv *priv = rsnd_io_to_priv(io);
- struct device *dev = rsnd_priv_to_dev(priv);
- struct snd_pcm_substream *substream;
- int err;
- /*
- * use Audio-DMAC dev if we can use IPMMU
- * see
- * rsnd_dmaen_attach()
- */
- if (io->dmac_dev)
- dev = io->dmac_dev;
- for (substream = rtd->pcm->streams[stream].substream;
- substream;
- substream = substream->next) {
- err = snd_pcm_lib_preallocate_pages(substream,
- SNDRV_DMA_TYPE_DEV,
- dev,
- PREALLOC_BUFFER, PREALLOC_BUFFER_MAX);
- if (err < 0)
- return err;
- }
- return 0;
- }
- static int rsnd_pcm_new(struct snd_soc_pcm_runtime *rtd)
- {
- struct snd_soc_dai *dai = rtd->cpu_dai;
- struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
- int ret;
- ret = rsnd_dai_call(pcm_new, &rdai->playback, rtd);
- if (ret)
- return ret;
- ret = rsnd_dai_call(pcm_new, &rdai->capture, rtd);
- if (ret)
- return ret;
- ret = rsnd_preallocate_pages(rtd, &rdai->playback,
- SNDRV_PCM_STREAM_PLAYBACK);
- if (ret)
- return ret;
- ret = rsnd_preallocate_pages(rtd, &rdai->capture,
- SNDRV_PCM_STREAM_CAPTURE);
- if (ret)
- return ret;
- return 0;
- }
- static const struct snd_soc_component_driver rsnd_soc_component = {
- .ops = &rsnd_pcm_ops,
- .pcm_new = rsnd_pcm_new,
- .name = "rsnd",
- };
- static int rsnd_rdai_continuance_probe(struct rsnd_priv *priv,
- struct rsnd_dai_stream *io)
- {
- int ret;
- ret = rsnd_dai_call(probe, io, priv);
- if (ret == -EAGAIN) {
- struct rsnd_mod *ssi_mod = rsnd_io_to_mod_ssi(io);
- struct rsnd_mod *mod;
- int i;
- /*
- * Fallback to PIO mode
- */
- /*
- * call "remove" for SSI/SRC/DVC
- * SSI will be switch to PIO mode if it was DMA mode
- * see
- * rsnd_dma_init()
- * rsnd_ssi_fallback()
- */
- rsnd_dai_call(remove, io, priv);
- /*
- * remove all mod from io
- * and, re connect ssi
- */
- for_each_rsnd_mod(i, mod, io)
- rsnd_dai_disconnect(mod, io, i);
- rsnd_dai_connect(ssi_mod, io, RSND_MOD_SSI);
- /*
- * fallback
- */
- rsnd_dai_call(fallback, io, priv);
- /*
- * retry to "probe".
- * DAI has SSI which is PIO mode only now.
- */
- ret = rsnd_dai_call(probe, io, priv);
- }
- return ret;
- }
- /*
- * rsnd probe
- */
- static int rsnd_probe(struct platform_device *pdev)
- {
- struct rsnd_priv *priv;
- struct device *dev = &pdev->dev;
- struct rsnd_dai *rdai;
- int (*probe_func[])(struct rsnd_priv *priv) = {
- rsnd_gen_probe,
- rsnd_dma_probe,
- rsnd_ssi_probe,
- rsnd_ssiu_probe,
- rsnd_src_probe,
- rsnd_ctu_probe,
- rsnd_mix_probe,
- rsnd_dvc_probe,
- rsnd_cmd_probe,
- rsnd_adg_probe,
- rsnd_dai_probe,
- };
- int ret, i;
- /*
- * init priv data
- */
- priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
- if (!priv)
- return -ENODEV;
- priv->pdev = pdev;
- priv->flags = (unsigned long)of_device_get_match_data(dev);
- spin_lock_init(&priv->lock);
- /*
- * init each module
- */
- for (i = 0; i < ARRAY_SIZE(probe_func); i++) {
- ret = probe_func[i](priv);
- if (ret)
- return ret;
- }
- for_each_rsnd_dai(rdai, priv, i) {
- ret = rsnd_rdai_continuance_probe(priv, &rdai->playback);
- if (ret)
- goto exit_snd_probe;
- ret = rsnd_rdai_continuance_probe(priv, &rdai->capture);
- if (ret)
- goto exit_snd_probe;
- }
- dev_set_drvdata(dev, priv);
- /*
- * asoc register
- */
- ret = devm_snd_soc_register_component(dev, &rsnd_soc_component,
- priv->daidrv, rsnd_rdai_nr(priv));
- if (ret < 0) {
- dev_err(dev, "cannot snd dai register\n");
- goto exit_snd_probe;
- }
- pm_runtime_enable(dev);
- dev_info(dev, "probed\n");
- return ret;
- exit_snd_probe:
- for_each_rsnd_dai(rdai, priv, i) {
- rsnd_dai_call(remove, &rdai->playback, priv);
- rsnd_dai_call(remove, &rdai->capture, priv);
- }
- return ret;
- }
- static int rsnd_remove(struct platform_device *pdev)
- {
- struct rsnd_priv *priv = dev_get_drvdata(&pdev->dev);
- struct rsnd_dai *rdai;
- void (*remove_func[])(struct rsnd_priv *priv) = {
- rsnd_ssi_remove,
- rsnd_ssiu_remove,
- rsnd_src_remove,
- rsnd_ctu_remove,
- rsnd_mix_remove,
- rsnd_dvc_remove,
- rsnd_cmd_remove,
- rsnd_adg_remove,
- };
- int ret = 0, i;
- snd_soc_disconnect_sync(&pdev->dev);
- pm_runtime_disable(&pdev->dev);
- for_each_rsnd_dai(rdai, priv, i) {
- ret |= rsnd_dai_call(remove, &rdai->playback, priv);
- ret |= rsnd_dai_call(remove, &rdai->capture, priv);
- }
- for (i = 0; i < ARRAY_SIZE(remove_func); i++)
- remove_func[i](priv);
- return ret;
- }
- static int __maybe_unused rsnd_suspend(struct device *dev)
- {
- struct rsnd_priv *priv = dev_get_drvdata(dev);
- rsnd_adg_clk_disable(priv);
- return 0;
- }
- static int __maybe_unused rsnd_resume(struct device *dev)
- {
- struct rsnd_priv *priv = dev_get_drvdata(dev);
- rsnd_adg_clk_enable(priv);
- return 0;
- }
- static const struct dev_pm_ops rsnd_pm_ops = {
- SET_SYSTEM_SLEEP_PM_OPS(rsnd_suspend, rsnd_resume)
- };
- static struct platform_driver rsnd_driver = {
- .driver = {
- .name = "rcar_sound",
- .pm = &rsnd_pm_ops,
- .of_match_table = rsnd_of_match,
- },
- .probe = rsnd_probe,
- .remove = rsnd_remove,
- };
- module_platform_driver(rsnd_driver);
- MODULE_LICENSE("GPL v2");
- MODULE_DESCRIPTION("Renesas R-Car audio driver");
- MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
- MODULE_ALIAS("platform:rcar-pcm-audio");
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