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-rw-r--r--sound/soc/sh/Kconfig7
-rw-r--r--sound/soc/sh/Makefile3
-rw-r--r--sound/soc/sh/rcar/Makefile2
-rw-r--r--sound/soc/sh/rcar/core.c554
-rw-r--r--sound/soc/sh/rcar/rsnd.h94
5 files changed, 660 insertions, 0 deletions
diff --git a/sound/soc/sh/Kconfig b/sound/soc/sh/Kconfig
index 6bcb1164d59..56d8ff6a402 100644
--- a/sound/soc/sh/Kconfig
+++ b/sound/soc/sh/Kconfig
@@ -34,6 +34,13 @@ config SND_SOC_SH4_SIU
select SH_DMAE
select FW_LOADER
+config SND_SOC_RCAR
+ tristate "R-Car series SRU/SCU/SSIU/SSI support"
+ select SND_SIMPLE_CARD
+ select RCAR_CLK_ADG
+ help
+ This option enables R-Car SUR/SCU/SSIU/SSI sound support
+
##
## Boards
##
diff --git a/sound/soc/sh/Makefile b/sound/soc/sh/Makefile
index 849b387d17d..aaf3dcd1ee2 100644
--- a/sound/soc/sh/Makefile
+++ b/sound/soc/sh/Makefile
@@ -12,6 +12,9 @@ obj-$(CONFIG_SND_SOC_SH4_SSI) += snd-soc-ssi.o
obj-$(CONFIG_SND_SOC_SH4_FSI) += snd-soc-fsi.o
obj-$(CONFIG_SND_SOC_SH4_SIU) += snd-soc-siu.o
+## audio units for R-Car
+obj-$(CONFIG_SND_SOC_RCAR) += rcar/
+
## boards
snd-soc-sh7760-ac97-objs := sh7760-ac97.o
snd-soc-migor-objs := migor.o
diff --git a/sound/soc/sh/rcar/Makefile b/sound/soc/sh/rcar/Makefile
new file mode 100644
index 00000000000..cd8089f20c9
--- /dev/null
+++ b/sound/soc/sh/rcar/Makefile
@@ -0,0 +1,2 @@
+snd-soc-rcar-objs := core.o
+obj-$(CONFIG_SND_SOC_RCAR) += snd-soc-rcar.o
diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c
new file mode 100644
index 00000000000..13b5d50efd0
--- /dev/null
+++ b/sound/soc/sh/rcar/core.c
@@ -0,0 +1,554 @@
+/*
+ * 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>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/*
+ * 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 scu
+ * |
+ * +- scu
+ * |
+ * +- scu[0]
+ * +- scu[1]
+ * +- scu[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()...
+ *
+ */
+#include <linux/pm_runtime.h>
+#include "rsnd.h"
+
+#define RSND_RATES SNDRV_PCM_RATE_8000_96000
+#define RSND_FMTS (SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE)
+
+/*
+ * rsnd_platform functions
+ */
+#define rsnd_platform_call(priv, dai, func, param...) \
+ (!(priv->info->func) ? -ENODEV : \
+ priv->info->func(param))
+
+
+/*
+ * rsnd_dai functions
+ */
+struct rsnd_dai *rsnd_dai_get(struct rsnd_priv *priv, int id)
+{
+ return priv->rdai + id;
+}
+
+static struct rsnd_dai *rsnd_dai_to_rdai(struct snd_soc_dai *dai)
+{
+ struct rsnd_priv *priv = snd_soc_dai_get_drvdata(dai);
+
+ return rsnd_dai_get(priv, dai->id);
+}
+
+int rsnd_dai_is_play(struct rsnd_dai *rdai, struct rsnd_dai_stream *io)
+{
+ return &rdai->playback == io;
+}
+
+/*
+ * rsnd_soc_dai functions
+ */
+int rsnd_dai_pointer_offset(struct rsnd_dai_stream *io, int additional)
+{
+ struct snd_pcm_substream *substream = io->substream;
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ int pos = io->byte_pos + additional;
+
+ pos %= (runtime->periods * io->byte_per_period);
+
+ return pos;
+}
+
+void rsnd_dai_pointer_update(struct rsnd_dai_stream *io, int byte)
+{
+ io->byte_pos += byte;
+
+ if (io->byte_pos >= io->next_period_byte) {
+ struct snd_pcm_substream *substream = io->substream;
+ struct snd_pcm_runtime *runtime = substream->runtime;
+
+ io->period_pos++;
+ io->next_period_byte += io->byte_per_period;
+
+ if (io->period_pos >= runtime->periods) {
+ io->byte_pos = 0;
+ io->period_pos = 0;
+ io->next_period_byte = io->byte_per_period;
+ }
+
+ snd_pcm_period_elapsed(substream);
+ }
+}
+
+static int rsnd_dai_stream_init(struct rsnd_dai_stream *io,
+ struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+
+ if (!list_empty(&io->head))
+ return -EIO;
+
+ INIT_LIST_HEAD(&io->head);
+ io->substream = substream;
+ io->byte_pos = 0;
+ io->period_pos = 0;
+ io->byte_per_period = runtime->period_size *
+ runtime->channels *
+ samples_to_bytes(runtime, 1);
+ io->next_period_byte = io->byte_per_period;
+
+ return 0;
+}
+
+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 = snd_soc_dai_get_drvdata(dai);
+ struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
+ struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
+ struct rsnd_dai_platform_info *info = rsnd_dai_get_platform_info(rdai);
+ int ssi_id = rsnd_dai_is_play(rdai, io) ? info->ssi_id_playback :
+ info->ssi_id_capture;
+ int ret;
+ unsigned long flags;
+
+ rsnd_lock(priv, flags);
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ ret = rsnd_dai_stream_init(io, substream);
+ if (ret < 0)
+ goto dai_trigger_end;
+
+ ret = rsnd_platform_call(priv, dai, start, ssi_id);
+ if (ret < 0)
+ goto dai_trigger_end;
+
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ ret = rsnd_platform_call(priv, dai, stop, ssi_id);
+ if (ret < 0)
+ goto dai_trigger_end;
+
+ break;
+ default:
+ ret = -EINVAL;
+ }
+
+dai_trigger_end:
+ rsnd_unlock(priv, 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 = 1;
+ break;
+ case SND_SOC_DAIFMT_CBS_CFS:
+ rdai->clk_master = 0;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* set clock inversion */
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_IF:
+ rdai->bit_clk_inv = 0;
+ rdai->frm_clk_inv = 1;
+ break;
+ case SND_SOC_DAIFMT_IB_NF:
+ rdai->bit_clk_inv = 1;
+ rdai->frm_clk_inv = 0;
+ break;
+ case SND_SOC_DAIFMT_IB_IF:
+ rdai->bit_clk_inv = 1;
+ rdai->frm_clk_inv = 1;
+ break;
+ case SND_SOC_DAIFMT_NB_NF:
+ default:
+ rdai->bit_clk_inv = 0;
+ rdai->frm_clk_inv = 0;
+ break;
+ }
+
+ /* set format */
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_I2S:
+ rdai->sys_delay = 0;
+ rdai->data_alignment = 0;
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ rdai->sys_delay = 1;
+ rdai->data_alignment = 0;
+ break;
+ case SND_SOC_DAIFMT_RIGHT_J:
+ rdai->sys_delay = 1;
+ rdai->data_alignment = 1;
+ break;
+ }
+
+ return 0;
+}
+
+static const struct snd_soc_dai_ops rsnd_soc_dai_ops = {
+ .trigger = rsnd_soc_dai_trigger,
+ .set_fmt = rsnd_soc_dai_set_fmt,
+};
+
+static int rsnd_dai_probe(struct platform_device *pdev,
+ struct rcar_snd_info *info,
+ struct rsnd_priv *priv)
+{
+ struct snd_soc_dai_driver *drv;
+ struct rsnd_dai *rdai;
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct rsnd_dai_platform_info *dai_info;
+ int dai_nr = info->dai_info_nr;
+ int i, pid, cid;
+
+ drv = devm_kzalloc(dev, sizeof(*drv) * dai_nr, GFP_KERNEL);
+ rdai = devm_kzalloc(dev, sizeof(*rdai) * dai_nr, GFP_KERNEL);
+ if (!drv || !rdai) {
+ dev_err(dev, "dai allocate failed\n");
+ return -ENOMEM;
+ }
+
+ for (i = 0; i < dai_nr; i++) {
+ dai_info = &info->dai_info[i];
+
+ pid = dai_info->ssi_id_playback;
+ cid = dai_info->ssi_id_capture;
+
+ /*
+ * init rsnd_dai
+ */
+ INIT_LIST_HEAD(&rdai[i].playback.head);
+ INIT_LIST_HEAD(&rdai[i].capture.head);
+
+ rdai[i].info = dai_info;
+
+ snprintf(rdai[i].name, RSND_DAI_NAME_SIZE, "rsnd-dai.%d", i);
+
+ /*
+ * init snd_soc_dai_driver
+ */
+ drv[i].name = rdai[i].name;
+ drv[i].ops = &rsnd_soc_dai_ops;
+ if (pid >= 0) {
+ drv[i].playback.rates = RSND_RATES;
+ drv[i].playback.formats = RSND_FMTS;
+ drv[i].playback.channels_min = 2;
+ drv[i].playback.channels_max = 2;
+ }
+ if (cid >= 0) {
+ drv[i].capture.rates = RSND_RATES;
+ drv[i].capture.formats = RSND_FMTS;
+ drv[i].capture.channels_min = 2;
+ drv[i].capture.channels_max = 2;
+ }
+
+ dev_dbg(dev, "%s (%d, %d) probed", rdai[i].name, pid, cid);
+ }
+
+ priv->dai_nr = dai_nr;
+ priv->daidrv = drv;
+ priv->rdai = rdai;
+
+ return 0;
+}
+
+static void rsnd_dai_remove(struct platform_device *pdev,
+ struct rsnd_priv *priv)
+{
+}
+
+/*
+ * pcm ops
+ */
+static struct snd_pcm_hardware rsnd_pcm_hardware = {
+ .info = SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_MMAP |
+ SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_PAUSE,
+ .formats = RSND_FMTS,
+ .rates = RSND_RATES,
+ .rate_min = 8000,
+ .rate_max = 192000,
+ .channels_min = 2,
+ .channels_max = 2,
+ .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_pcm_open(struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ int ret = 0;
+
+ snd_soc_set_runtime_hwparams(substream, &rsnd_pcm_hardware);
+
+ ret = snd_pcm_hw_constraint_integer(runtime,
+ SNDRV_PCM_HW_PARAM_PERIODS);
+
+ return ret;
+}
+
+static int rsnd_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *hw_params)
+{
+ 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_pcm_runtime *runtime = substream->runtime;
+ 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);
+
+ return bytes_to_frames(runtime, io->byte_pos);
+}
+
+static struct snd_pcm_ops rsnd_pcm_ops = {
+ .open = rsnd_pcm_open,
+ .ioctl = snd_pcm_lib_ioctl,
+ .hw_params = rsnd_hw_params,
+ .hw_free = snd_pcm_lib_free_pages,
+ .pointer = rsnd_pointer,
+};
+
+/*
+ * snd_soc_platform
+ */
+
+#define PREALLOC_BUFFER (32 * 1024)
+#define PREALLOC_BUFFER_MAX (32 * 1024)
+
+static int rsnd_pcm_new(struct snd_soc_pcm_runtime *rtd)
+{
+ return snd_pcm_lib_preallocate_pages_for_all(
+ rtd->pcm,
+ SNDRV_DMA_TYPE_DEV,
+ rtd->card->snd_card->dev,
+ PREALLOC_BUFFER, PREALLOC_BUFFER_MAX);
+}
+
+static void rsnd_pcm_free(struct snd_pcm *pcm)
+{
+ snd_pcm_lib_preallocate_free_for_all(pcm);
+}
+
+static struct snd_soc_platform_driver rsnd_soc_platform = {
+ .ops = &rsnd_pcm_ops,
+ .pcm_new = rsnd_pcm_new,
+ .pcm_free = rsnd_pcm_free,
+};
+
+static const struct snd_soc_component_driver rsnd_soc_component = {
+ .name = "rsnd",
+};
+
+/*
+ * rsnd probe
+ */
+static int rsnd_probe(struct platform_device *pdev)
+{
+ struct rcar_snd_info *info;
+ struct rsnd_priv *priv;
+ struct device *dev = &pdev->dev;
+ int ret;
+
+ info = pdev->dev.platform_data;
+ if (!info) {
+ dev_err(dev, "driver needs R-Car sound information\n");
+ return -ENODEV;
+ }
+
+ /*
+ * init priv data
+ */
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv) {
+ dev_err(dev, "priv allocate failed\n");
+ return -ENODEV;
+ }
+
+ priv->dev = dev;
+ priv->info = info;
+ spin_lock_init(&priv->lock);
+
+ /*
+ * init each module
+ */
+ ret = rsnd_dai_probe(pdev, info, priv);
+ if (ret < 0)
+ return ret;
+
+ /*
+ * asoc register
+ */
+ ret = snd_soc_register_platform(dev, &rsnd_soc_platform);
+ if (ret < 0) {
+ dev_err(dev, "cannot snd soc register\n");
+ return ret;
+ }
+
+ ret = snd_soc_register_component(dev, &rsnd_soc_component,
+ priv->daidrv, rsnd_dai_nr(priv));
+ if (ret < 0) {
+ dev_err(dev, "cannot snd dai register\n");
+ goto exit_snd_soc;
+ }
+
+ dev_set_drvdata(dev, priv);
+
+ pm_runtime_enable(dev);
+
+ dev_info(dev, "probed\n");
+ return ret;
+
+exit_snd_soc:
+ snd_soc_unregister_platform(dev);
+
+ return ret;
+}
+
+static int rsnd_remove(struct platform_device *pdev)
+{
+ struct rsnd_priv *priv = dev_get_drvdata(&pdev->dev);
+
+ pm_runtime_disable(&pdev->dev);
+
+ /*
+ * remove each module
+ */
+ rsnd_dai_remove(pdev, priv);
+
+ return 0;
+}
+
+static struct platform_driver rsnd_driver = {
+ .driver = {
+ .name = "rcar_sound",
+ },
+ .probe = rsnd_probe,
+ .remove = rsnd_remove,
+};
+module_platform_driver(rsnd_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Renesas R-Car audio driver");
+MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
+MODULE_ALIAS("platform:rcar-pcm-audio");
diff --git a/sound/soc/sh/rcar/rsnd.h b/sound/soc/sh/rcar/rsnd.h
new file mode 100644
index 00000000000..8d04fd0352b
--- /dev/null
+++ b/sound/soc/sh/rcar/rsnd.h
@@ -0,0 +1,94 @@
+/*
+ * Renesas R-Car
+ *
+ * Copyright (C) 2013 Renesas Solutions Corp.
+ * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef RSND_H
+#define RSND_H
+
+#include <linux/clk.h>
+#include <linux/device.h>
+#include <linux/io.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <sound/rcar_snd.h>
+#include <sound/soc.h>
+#include <sound/pcm_params.h>
+
+/*
+ * pseudo register
+ *
+ * The register address offsets SRU/SCU/SSIU on Gen1/Gen2 are very different.
+ * This driver uses pseudo register in order to hide it.
+ * see gen1/gen2 for detail
+ */
+struct rsnd_priv;
+struct rsnd_dai;
+struct rsnd_dai_stream;
+
+/*
+ * R-Car sound DAI
+ */
+#define RSND_DAI_NAME_SIZE 16
+struct rsnd_dai_stream {
+ struct list_head head; /* head of rsnd_mod list */
+ struct snd_pcm_substream *substream;
+ int byte_pos;
+ int period_pos;
+ int byte_per_period;
+ int next_period_byte;
+};
+
+struct rsnd_dai {
+ char name[RSND_DAI_NAME_SIZE];
+ struct rsnd_dai_platform_info *info; /* rcar_snd.h */
+ struct rsnd_dai_stream playback;
+ struct rsnd_dai_stream capture;
+
+ int clk_master:1;
+ int bit_clk_inv:1;
+ int frm_clk_inv:1;
+ int sys_delay:1;
+ int data_alignment:1;
+};
+
+#define rsnd_dai_nr(priv) ((priv)->dai_nr)
+#define for_each_rsnd_dai(rdai, priv, i) \
+ for (i = 0, (rdai) = rsnd_dai_get(priv, i); \
+ i < rsnd_dai_nr(priv); \
+ i++, (rdai) = rsnd_dai_get(priv, i))
+
+struct rsnd_dai *rsnd_dai_get(struct rsnd_priv *priv, int id);
+int rsnd_dai_is_play(struct rsnd_dai *rdai, struct rsnd_dai_stream *io);
+#define rsnd_dai_get_platform_info(rdai) ((rdai)->info)
+
+void rsnd_dai_pointer_update(struct rsnd_dai_stream *io, int cnt);
+int rsnd_dai_pointer_offset(struct rsnd_dai_stream *io, int additional);
+
+/*
+ * R-Car sound priv
+ */
+struct rsnd_priv {
+
+ struct device *dev;
+ struct rcar_snd_info *info;
+ spinlock_t lock;
+
+ /*
+ * below value will be filled on rsnd_dai_probe()
+ */
+ struct snd_soc_dai_driver *daidrv;
+ struct rsnd_dai *rdai;
+ int dai_nr;
+};
+
+#define rsnd_priv_to_dev(priv) ((priv)->dev)
+#define rsnd_lock(priv, flags) spin_lock_irqsave(&priv->lock, flags)
+#define rsnd_unlock(priv, flags) spin_unlock_irqrestore(&priv->lock, flags)
+
+#endif
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-19 19:19:29 +0000