From: Kuninori Morimoto kuninori.morimoto.gx@renesas.com

We already have dummy-codec, dummy-platform. But its issues are 1) we don't have dummy-cpu, 2) we can't select it via DeviceTree 3) It do nothing

Sometimes we want to have Dummy Sound Component for debugging, for testing, for learning Framework behavior, etc, etc... This patch adds Test-Component driver for it.

User can select CPU Component by using "test-cpu" compatible, and can select Codec Component by using "test-codec" compatible.

It doesn't support Platform so far, but is easy to add.

We can verbose print to know its progress if user selected xxx-vn or xxx-nv or xxx-vv compatible driver.

for example, test-cpu : silent Component, silent DAI test-cpu-vn : verbose Component, silent DAI test-cpu-nv : silent Component, verbose DAI test-cpu-vv : verbose Component, verbose DAI

Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com --- sound/soc/generic/Kconfig | 6 + sound/soc/generic/Makefile | 2 + sound/soc/generic/test-component.c | 659 +++++++++++++++++++++++++++++ 3 files changed, 667 insertions(+) create mode 100644 sound/soc/generic/test-component.c

diff --git a/sound/soc/generic/Kconfig b/sound/soc/generic/Kconfig index 4cafcf0e2bbf..bb734780669e 100644 --- a/sound/soc/generic/Kconfig +++ b/sound/soc/generic/Kconfig @@ -17,3 +17,9 @@ config SND_AUDIO_GRAPH_CARD This option enables generic simple sound card support with OF-graph DT bindings. It also support DPCM of multi CPU single Codec ststem. + +config SND_TEST_COMPONENT + tristate "ASoC Test component sound support" + depends on OF + help + This option enables test component sound driver support. diff --git a/sound/soc/generic/Makefile b/sound/soc/generic/Makefile index 21c29e5e0671..988bfd45d2e2 100644 --- a/sound/soc/generic/Makefile +++ b/sound/soc/generic/Makefile @@ -2,7 +2,9 @@ snd-soc-simple-card-utils-objs := simple-card-utils.o snd-soc-simple-card-objs := simple-card.o snd-soc-audio-graph-card-objs := audio-graph-card.o +snd-soc-test-component-objs := test-component.o

obj-$(CONFIG_SND_SIMPLE_CARD_UTILS) += snd-soc-simple-card-utils.o obj-$(CONFIG_SND_SIMPLE_CARD) += snd-soc-simple-card.o obj-$(CONFIG_SND_AUDIO_GRAPH_CARD) += snd-soc-audio-graph-card.o +obj-$(CONFIG_SND_TEST_COMPONENT) += snd-soc-test-component.o diff --git a/sound/soc/generic/test-component.c b/sound/soc/generic/test-component.c new file mode 100644 index 000000000000..de0f7f2586b4 --- /dev/null +++ b/sound/soc/generic/test-component.c @@ -0,0 +1,659 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// test-component.c -- Test Audio Component driver +// +// Copyright (C) 2020 Renesas Electronics Corporation +// Kuninori Morimoto kuninori.morimoto.gx@renesas.com + +#include <linux/slab.h> +#include <linux/of_device.h> +#include <linux/of_graph.h> +#include <linux/module.h> +#include <linux/workqueue.h> +#include <sound/pcm.h> +#include <sound/soc.h> + +#define TEST_NAME_LEN 32 +struct test_dai_name { + char name[TEST_NAME_LEN]; + char name_playback[TEST_NAME_LEN]; + char name_capture[TEST_NAME_LEN]; +}; + +struct test_priv { + struct device *dev; + struct snd_pcm_substream *substream; + struct delayed_work dwork; + struct snd_soc_component_driver *component_driver; + struct snd_soc_dai_driver *dai_driver; + struct test_dai_name *name; +}; + +struct test_adata { + u32 is_cpu:1; + u32 cmp_v:1; + u32 dai_v:1; +}; + +#define mile_stone(d) dev_info((d)->dev, "%s() : %s", __func__, (d)->driver->name) +#define mile_stone_x(dev) dev_info(dev, "%s()", __func__) + +static int test_dai_set_sysclk(struct snd_soc_dai *dai, + int clk_id, unsigned int freq, int dir) +{ + mile_stone(dai); + + return 0; +} + +static int test_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source, + unsigned int freq_in, unsigned int freq_out) +{ + mile_stone(dai); + + return 0; +} + +static int test_dai_set_clkdiv(struct snd_soc_dai *dai, int div_id, int div) +{ + mile_stone(dai); + + return 0; +} + +static int test_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) +{ + unsigned int format = fmt & SND_SOC_DAIFMT_FORMAT_MASK; + unsigned int clock = fmt & SND_SOC_DAIFMT_CLOCK_MASK; + unsigned int inv = fmt & SND_SOC_DAIFMT_INV_MASK; + unsigned int master = fmt & SND_SOC_DAIFMT_MASTER_MASK; + char *str; + + dev_info(dai->dev, "name : %s", dai->name); + + str = "unknown"; + switch (format) { + case SND_SOC_DAIFMT_I2S: + str = "i2s"; + break; + case SND_SOC_DAIFMT_RIGHT_J: + str = "right_j"; + break; + case SND_SOC_DAIFMT_LEFT_J: + str = "left_j"; + break; + case SND_SOC_DAIFMT_DSP_A: + str = "dsp_a"; + break; + case SND_SOC_DAIFMT_DSP_B: + str = "dsp_b"; + break; + case SND_SOC_DAIFMT_AC97: + str = "ac97"; + break; + case SND_SOC_DAIFMT_PDM: + str = "pdm"; + break; + } + dev_info(dai->dev, "format : %s", str); + + if (clock == SND_SOC_DAIFMT_CONT) + str = "continuous"; + else + str = "gated"; + dev_info(dai->dev, "clock : %s", str); + + str = "unknown"; + switch (master) { + case SND_SOC_DAIFMT_CBP_CFP: + str = "clk provider, frame provider"; + break; + case SND_SOC_DAIFMT_CBC_CFP: + str = "clk consumer, frame provider"; + break; + case SND_SOC_DAIFMT_CBP_CFC: + str = "clk provider, frame consumer"; + break; + case SND_SOC_DAIFMT_CBC_CFC: + str = "clk consumer, frame consumer"; + break; + } + dev_info(dai->dev, "clock : codec is %s", str); + + str = "unknown"; + switch (inv) { + case SND_SOC_DAIFMT_NB_NF: + str = "normal bit, normal frame"; + break; + case SND_SOC_DAIFMT_NB_IF: + str = "normal bit, invert frame"; + break; + case SND_SOC_DAIFMT_IB_NF: + str = "invert bit, normal frame"; + break; + case SND_SOC_DAIFMT_IB_IF: + str = "invert bit, invert frame"; + break; + } + dev_info(dai->dev, "signal : %s", str); + + return 0; +} + +static int test_dai_mute_stream(struct snd_soc_dai *dai, int mute, int stream) +{ + mile_stone(dai); + + return 0; +} + +static int test_dai_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) +{ + mile_stone(dai); + + return 0; +} + +static void test_dai_shutdown(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) +{ + mile_stone(dai); +} + +static int test_dai_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) +{ + mile_stone(dai); + + return 0; +} + +static int test_dai_hw_free(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) +{ + mile_stone(dai); + + return 0; +} + +static int test_dai_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_dai *dai) +{ + mile_stone(dai); + + return 0; +} + +static int test_dai_bespoke_trigger(struct snd_pcm_substream *substream, + int cmd, struct snd_soc_dai *dai) +{ + mile_stone(dai); + + return 0; +} + +static u64 test_dai_formats = + /* + * Select below from Sound Card, not auto + * SND_SOC_POSSIBLE_DAIFMT_CBP_CFP + * SND_SOC_POSSIBLE_DAIFMT_CBC_CFP + * SND_SOC_POSSIBLE_DAIFMT_CBP_CFC + * SND_SOC_POSSIBLE_DAIFMT_CBC_CFC + */ + SND_SOC_POSSIBLE_DAIFMT_I2S | + SND_SOC_POSSIBLE_DAIFMT_RIGHT_J | + SND_SOC_POSSIBLE_DAIFMT_LEFT_J | + SND_SOC_POSSIBLE_DAIFMT_DSP_A | + SND_SOC_POSSIBLE_DAIFMT_DSP_B | + SND_SOC_POSSIBLE_DAIFMT_AC97 | + SND_SOC_POSSIBLE_DAIFMT_PDM | + SND_SOC_POSSIBLE_DAIFMT_NB_NF | + SND_SOC_POSSIBLE_DAIFMT_NB_IF | + SND_SOC_POSSIBLE_DAIFMT_IB_NF | + SND_SOC_POSSIBLE_DAIFMT_IB_IF; + +static const struct snd_soc_dai_ops test_ops = { + .set_fmt = test_dai_set_fmt, + .startup = test_dai_startup, + .shutdown = test_dai_shutdown, + .auto_selectable_formats = &test_dai_formats, + .num_auto_selectable_formats = 1, +}; + +static const struct snd_soc_dai_ops test_verbose_ops = { + .set_sysclk = test_dai_set_sysclk, + .set_pll = test_dai_set_pll, + .set_clkdiv = test_dai_set_clkdiv, + .set_fmt = test_dai_set_fmt, + .mute_stream = test_dai_mute_stream, + .startup = test_dai_startup, + .shutdown = test_dai_shutdown, + .hw_params = test_dai_hw_params, + .hw_free = test_dai_hw_free, + .trigger = test_dai_trigger, + .bespoke_trigger = test_dai_bespoke_trigger, + .auto_selectable_formats = &test_dai_formats, + .num_auto_selectable_formats = 1, +}; + +#define STUB_RATES SNDRV_PCM_RATE_8000_384000 +#define STUB_FORMATS (SNDRV_PCM_FMTBIT_S8 | \ + SNDRV_PCM_FMTBIT_U8 | \ + SNDRV_PCM_FMTBIT_S16_LE | \ + SNDRV_PCM_FMTBIT_U16_LE | \ + SNDRV_PCM_FMTBIT_S24_LE | \ + SNDRV_PCM_FMTBIT_S24_3LE | \ + SNDRV_PCM_FMTBIT_U24_LE | \ + SNDRV_PCM_FMTBIT_S32_LE | \ + SNDRV_PCM_FMTBIT_U32_LE) + +static int test_component_probe(struct snd_soc_component *component) +{ + mile_stone(component); + + return 0; +} + +static void test_component_remove(struct snd_soc_component *component) +{ + mile_stone(component); +} + +static int test_component_suspend(struct snd_soc_component *component) +{ + mile_stone(component); + + return 0; +} + +static int test_component_resume(struct snd_soc_component *component) +{ + mile_stone(component); + + return 0; +} + +#define PREALLOC_BUFFER (32 * 1024) +static int test_component_pcm_construct(struct snd_soc_component *component, + struct snd_soc_pcm_runtime *rtd) +{ + mile_stone(component); + + snd_pcm_set_managed_buffer_all( + rtd->pcm, + SNDRV_DMA_TYPE_DEV, + rtd->card->snd_card->dev, + PREALLOC_BUFFER, PREALLOC_BUFFER); + + return 0; +} + +static void test_component_pcm_destruct(struct snd_soc_component *component, + struct snd_pcm *pcm) +{ + mile_stone(component); +} + +static int test_component_set_sysclk(struct snd_soc_component *component, + int clk_id, int source, unsigned int freq, int dir) +{ + mile_stone(component); + + return 0; +} + +static int test_component_set_pll(struct snd_soc_component *component, int pll_id, + int source, unsigned int freq_in, unsigned int freq_out) +{ + mile_stone(component); + + return 0; +} + +static int test_component_set_jack(struct snd_soc_component *component, + struct snd_soc_jack *jack, void *data) +{ + mile_stone(component); + + return 0; +} + +static void test_component_seq_notifier(struct snd_soc_component *component, + enum snd_soc_dapm_type type, int subseq) +{ + mile_stone(component); +} + +static int test_component_stream_event(struct snd_soc_component *component, int event) +{ + mile_stone(component); + + return 0; +} + +static int test_component_set_bias_level(struct snd_soc_component *component, + enum snd_soc_bias_level level) +{ + mile_stone(component); + + return 0; +} + +static const struct snd_pcm_hardware test_component_hardware = { + /* Random values to keep userspace happy when checking constraints */ + .info = SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_MMAP_VALID, + .buffer_bytes_max = 32 * 1024, + .period_bytes_min = 32, + .period_bytes_max = 8192, + .periods_min = 1, + .periods_max = 128, + .fifo_size = 256, +}; + +static int test_component_open(struct snd_soc_component *component, + struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); + + mile_stone(component); + + /* BE's dont need dummy params */ + if (!rtd->dai_link->no_pcm) + snd_soc_set_runtime_hwparams(substream, &test_component_hardware); + + return 0; +} + +static int test_component_close(struct snd_soc_component *component, + struct snd_pcm_substream *substream) +{ + mile_stone(component); + + return 0; +} + +static int test_component_ioctl(struct snd_soc_component *component, + struct snd_pcm_substream *substream, + unsigned int cmd, void *arg) +{ + mile_stone(component); + + return 0; +} + +static int test_component_hw_params(struct snd_soc_component *component, + struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + mile_stone(component); + + return 0; +} + +static int test_component_hw_free(struct snd_soc_component *component, + struct snd_pcm_substream *substream) +{ + mile_stone(component); + + return 0; +} + +static int test_component_prepare(struct snd_soc_component *component, + struct snd_pcm_substream *substream) +{ + mile_stone(component); + + return 0; +} + +static void test_component_timer_stop(struct test_priv *priv) +{ + cancel_delayed_work(&priv->dwork); +} + +static void test_component_timer_start(struct test_priv *priv) +{ + schedule_delayed_work(&priv->dwork, msecs_to_jiffies(10)); +} + +static void test_component_dwork(struct work_struct *work) +{ + struct test_priv *priv = container_of(work, struct test_priv, dwork.work); + + if (priv->substream) + snd_pcm_period_elapsed(priv->substream); + + test_component_timer_start(priv); +} + +static int test_component_trigger(struct snd_soc_component *component, + struct snd_pcm_substream *substream, int cmd) +{ + struct test_priv *priv = dev_get_drvdata(component->dev); + + mile_stone(component); + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + test_component_timer_start(priv); + priv->substream = substream; /* set substream later */ + break; + case SNDRV_PCM_TRIGGER_STOP: + priv->substream = NULL; + test_component_timer_stop(priv); + } + + return 0; +} + +static int test_component_sync_stop(struct snd_soc_component *component, + struct snd_pcm_substream *substream) +{ + mile_stone(component); + + return 0; +} + +static snd_pcm_uframes_t test_component_pointer(struct snd_soc_component *component, + struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + static int pointer; + + if (!runtime) + return 0; + + pointer += 10; + if (pointer > PREALLOC_BUFFER) + pointer = 0; + + /* mile_stone(component); */ + + return bytes_to_frames(runtime, pointer); +} + +static int test_component_get_time_info(struct snd_soc_component *component, + struct snd_pcm_substream *substream, + struct timespec64 *system_ts, + struct timespec64 *audio_ts, + struct snd_pcm_audio_tstamp_config *audio_tstamp_config, + struct snd_pcm_audio_tstamp_report *audio_tstamp_report) +{ + mile_stone(component); + + return 0; +} + +static int test_component_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, + struct snd_pcm_hw_params *params) +{ + mile_stone_x(rtd->dev); + + return 0; +} + +/* CPU */ +static const struct test_adata test_cpu = { .is_cpu = 1, .cmp_v = 0, .dai_v = 0, }; +static const struct test_adata test_cpu_vv = { .is_cpu = 1, .cmp_v = 1, .dai_v = 1, }; +static const struct test_adata test_cpu_nv = { .is_cpu = 1, .cmp_v = 0, .dai_v = 1, }; +static const struct test_adata test_cpu_vn = { .is_cpu = 1, .cmp_v = 1, .dai_v = 0, }; +/* Codec */ +static const struct test_adata test_codec = { .is_cpu = 0, .cmp_v = 0, .dai_v = 0, }; +static const struct test_adata test_codec_vv = { .is_cpu = 0, .cmp_v = 1, .dai_v = 1, }; +static const struct test_adata test_codec_nv = { .is_cpu = 0, .cmp_v = 0, .dai_v = 1, }; +static const struct test_adata test_codec_vn = { .is_cpu = 0, .cmp_v = 1, .dai_v = 0, }; + +static const struct of_device_id test_of_match[] = { + { .compatible = "test-cpu", .data = (void *)&test_cpu, }, + { .compatible = "test-cpu-vv", .data = (void *)&test_cpu_vv, }, + { .compatible = "test-cpu-vn", .data = (void *)&test_cpu_vn, }, + { .compatible = "test-cpu-nv", .data = (void *)&test_cpu_nv, }, + { .compatible = "test-codec", .data = (void *)&test_codec, }, + { .compatible = "test-codec-vv", .data = (void *)&test_codec_vv, }, + { .compatible = "test-codec-vn", .data = (void *)&test_codec_vn, }, + { .compatible = "test-codec-nv", .data = (void *)&test_codec_nv, }, + {}, +}; +MODULE_DEVICE_TABLE(of, test_of_match); + +static const struct snd_soc_dapm_widget widgets[] = { + /* + * FIXME + * + * Just IN/OUT is OK for now, + * but need to be updated ? + */ + SND_SOC_DAPM_INPUT("IN"), + SND_SOC_DAPM_OUTPUT("OUT"), +}; + +static int test_driver_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct device_node *node = dev->of_node; + struct device_node *ep; + const struct of_device_id *of_id = of_match_device(test_of_match, &pdev->dev); + const struct test_adata *adata = of_id->data; + struct snd_soc_component_driver *cdriv; + struct snd_soc_dai_driver *ddriv; + struct test_dai_name *dname; + struct test_priv *priv; + int num, ret, i; + + num = of_graph_get_endpoint_count(node); + if (!num) { + dev_err(dev, "no port exits\n"); + return -EINVAL; + } + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + cdriv = devm_kzalloc(dev, sizeof(*cdriv), GFP_KERNEL); + ddriv = devm_kzalloc(dev, sizeof(*ddriv) * num, GFP_KERNEL); + dname = devm_kzalloc(dev, sizeof(*dname) * num, GFP_KERNEL); + if (!priv || !cdriv || !ddriv || !dname) + return -EINVAL; + + priv->dev = dev; + priv->component_driver = cdriv; + priv->dai_driver = ddriv; + priv->name = dname; + + INIT_DELAYED_WORK(&priv->dwork, test_component_dwork); + dev_set_drvdata(dev, priv); + + if (adata->is_cpu) { + cdriv->name = "test_cpu"; + cdriv->pcm_construct = test_component_pcm_construct; + cdriv->pointer = test_component_pointer; + cdriv->trigger = test_component_trigger; + } else { + cdriv->name = "test_codec"; + cdriv->idle_bias_on = 1; + cdriv->endianness = 1; + cdriv->non_legacy_dai_naming = 1; + } + + cdriv->open = test_component_open; + cdriv->dapm_widgets = widgets; + cdriv->num_dapm_widgets = ARRAY_SIZE(widgets); + + if (adata->cmp_v) { + cdriv->probe = test_component_probe; + cdriv->remove = test_component_remove; + cdriv->suspend = test_component_suspend; + cdriv->resume = test_component_resume; + cdriv->set_sysclk = test_component_set_sysclk; + cdriv->set_pll = test_component_set_pll; + cdriv->set_jack = test_component_set_jack; + cdriv->seq_notifier = test_component_seq_notifier; + cdriv->stream_event = test_component_stream_event; + cdriv->set_bias_level = test_component_set_bias_level; + cdriv->close = test_component_close; + cdriv->ioctl = test_component_ioctl; + cdriv->hw_params = test_component_hw_params; + cdriv->hw_free = test_component_hw_free; + cdriv->prepare = test_component_prepare; + cdriv->sync_stop = test_component_sync_stop; + cdriv->get_time_info = test_component_get_time_info; + cdriv->be_hw_params_fixup = test_component_be_hw_params_fixup; + + if (adata->is_cpu) + cdriv->pcm_destruct = test_component_pcm_destruct; + } + + i = 0; + for_each_endpoint_of_node(node, ep) { + snprintf(dname[i].name, TEST_NAME_LEN, "%s.%d", node->name, i); + ddriv[i].name = dname[i].name; + + snprintf(dname[i].name_playback, TEST_NAME_LEN, "DAI%d Playback", i); + ddriv[i].playback.stream_name = dname[i].name_playback; + ddriv[i].playback.channels_min = 1; + ddriv[i].playback.channels_max = 384; + ddriv[i].playback.rates = STUB_RATES; + ddriv[i].playback.formats = STUB_FORMATS; + + snprintf(dname[i].name_capture, TEST_NAME_LEN, "DAI%d Capture", i); + ddriv[i].capture.stream_name = dname[i].name_capture; + ddriv[i].capture.channels_min = 1; + ddriv[i].capture.channels_max = 384; + ddriv[i].capture.rates = STUB_RATES; + ddriv[i].capture.formats = STUB_FORMATS; + + if (adata->dai_v) + ddriv[i].ops = &test_verbose_ops; + else + ddriv[i].ops = &test_ops; + + i++; + } + + ret = devm_snd_soc_register_component(dev, cdriv, ddriv, num); + if (ret < 0) + return ret; + + mile_stone_x(dev); + + return 0; +} + +static int test_driver_remove(struct platform_device *pdev) +{ + mile_stone_x(&pdev->dev); + + return 0; +} + +static struct platform_driver test_driver = { + .driver = { + .name = "test-component", + .of_match_table = test_of_match, + }, + .probe = test_driver_probe, + .remove = test_driver_remove, +}; +module_platform_driver(test_driver); + +MODULE_ALIAS("platform:asoc-test-component"); +MODULE_AUTHOR("Kuninori Morimoto kuninori.morimoto.gx@renesas.com"); +MODULE_DESCRIPTION("ASoC Test Component"); +MODULE_LICENSE("GPL v2");

From: Kuninori Morimoto kuninori.morimoto.gx@renesas.com

audio-graph-card2 will support DPCM/Multi/Codec2Codec, and these will use almost same DT settings which uses ports0 and ports1. This patch adds asoc_graph_is_ports0() which checks port is under port0 or not.

Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com --- include/sound/simple_card_utils.h | 1 + sound/soc/generic/simple-card-utils.c | 28 +++++++++++++++++++++++++++ 2 files changed, 29 insertions(+)

diff --git a/include/sound/simple_card_utils.h b/include/sound/simple_card_utils.h index 51b3b485a92e..520559b0a336 100644 --- a/include/sound/simple_card_utils.h +++ b/include/sound/simple_card_utils.h @@ -180,6 +180,7 @@ int asoc_simple_init_priv(struct asoc_simple_priv *priv, int asoc_simple_remove(struct platform_device *pdev);

int asoc_graph_card_probe(struct snd_soc_card *card); +int asoc_graph_is_ports0(struct device_node *port);

#ifdef DEBUG static inline void asoc_simple_debug_dai(struct asoc_simple_priv *priv, diff --git a/sound/soc/generic/simple-card-utils.c b/sound/soc/generic/simple-card-utils.c index 677f7da93b4b..31802b15afd4 100644 --- a/sound/soc/generic/simple-card-utils.c +++ b/sound/soc/generic/simple-card-utils.c @@ -759,6 +759,34 @@ int asoc_graph_card_probe(struct snd_soc_card *card) } EXPORT_SYMBOL_GPL(asoc_graph_card_probe);

+int asoc_graph_is_ports0(struct device_node *np) +{ + struct device_node *port, *ports, *ports0, *top; + int ret; + + /* np is "endpoint" or "port" */ + if (of_node_name_eq(np, "endpoint")) { + port = of_get_parent(np); + } else { + port = np; + of_node_get(port); + } + + ports = of_get_parent(port); + top = of_get_parent(ports); + ports0 = of_get_child_by_name(top, "ports"); + + ret = ports0 == ports; + + of_node_put(port); + of_node_put(ports); + of_node_put(ports0); + of_node_put(top); + + return ret; +} +EXPORT_SYMBOL_GPL(asoc_graph_is_ports0); + /* Module information */ MODULE_AUTHOR("Kuninori Morimoto kuninori.morimoto.gx@renesas.com"); MODULE_DESCRIPTION("ALSA SoC Simple Card Utils");

From: Kuninori Morimoto kuninori.morimoto.gx@renesas.com

We already have audio-graph-card which is Of-graph base of general sound card driver.

It is also supporting DPCM connection, but was forcibly expanded. Thus, it is very difficult to add new features on it, for example Multi CPU/Codec support, Codec2Codec support, etc.

This patch adds more flexible new Audio Graph Card2 driver for it. audio-graph-card and audio-graph-card2 are similar, but don't have full compatibility.

Difference between audio-graph-card and audio-graph-card2 are

- audio-graph-card used "dais" to indicate DAI-links, audio-graph-card2 uses "links" to it.

- audio-graph-card used "phandle" to indicate bitclock/frame-master, audio-graph-card2 uses flag to it.

- audio-graph-card used "format" to indicate DAI format, audio-graph-card2 assumes CPU/Codec drivers have .get_fmt support.

Audio Graph Card2 supports very generic connection, but some users want to have its own settings, for example PLL settings, etc. For such case, it has customizing support. In users own driver, it can use Audio Graph Card2 parsing by using asoc_graph_parse_of2(), and doing its own customizing.

Because Audio Graph Card2 is still under experimental stage, it will indicate such warning when probing, and the DT syntax might be changed.

Link: https://lore.kernel.org/r/87k0xszlep.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com --- include/sound/graph_card.h | 15 + sound/soc/generic/Kconfig | 8 + sound/soc/generic/Makefile | 2 + sound/soc/generic/audio-graph-card2.c | 659 ++++++++++++++++++++++++++ 4 files changed, 684 insertions(+) create mode 100644 sound/soc/generic/audio-graph-card2.c

diff --git a/include/sound/graph_card.h b/include/sound/graph_card.h index 6f10bfb0d5ee..b3185783caa7 100644 --- a/include/sound/graph_card.h +++ b/include/sound/graph_card.h @@ -9,6 +9,21 @@

#include <sound/simple_card_utils.h>

+typedef int (*GRAPH_CUSTOM)(struct asoc_simple_priv *priv, + struct device_node *lnk, + struct link_info *li); + +struct graph_custom_hooks { + int (*hook_pre)(struct asoc_simple_priv *priv); + int (*hook_post)(struct asoc_simple_priv *priv); + GRAPH_CUSTOM custom_normal; +}; + int audio_graph_parse_of(struct asoc_simple_priv *priv, struct device *dev); +int audio_graph2_parse_of(struct asoc_simple_priv *priv, struct device *dev, + struct graph_custom_hooks *hooks); + +int audio_graph2_link_normal(struct asoc_simple_priv *priv, + struct device_node *lnk, struct link_info *li);

#endif /* __GRAPH_CARD_H */ diff --git a/sound/soc/generic/Kconfig b/sound/soc/generic/Kconfig index bb734780669e..3385c488cd85 100644 --- a/sound/soc/generic/Kconfig +++ b/sound/soc/generic/Kconfig @@ -18,6 +18,14 @@ config SND_AUDIO_GRAPH_CARD with OF-graph DT bindings. It also support DPCM of multi CPU single Codec ststem.

+config SND_AUDIO_GRAPH_CARD2 + tristate "ASoC Audio Graph Sound Card2 support" + depends on OF + select SND_SIMPLE_CARD_UTILS + help + This option enables generic simple sound card support + with OF-graph DT bindings. + config SND_TEST_COMPONENT tristate "ASoC Test component sound support" depends on OF diff --git a/sound/soc/generic/Makefile b/sound/soc/generic/Makefile index 988bfd45d2e2..b480f47a330d 100644 --- a/sound/soc/generic/Makefile +++ b/sound/soc/generic/Makefile @@ -2,9 +2,11 @@ snd-soc-simple-card-utils-objs := simple-card-utils.o snd-soc-simple-card-objs := simple-card.o snd-soc-audio-graph-card-objs := audio-graph-card.o +snd-soc-audio-graph-card2-objs := audio-graph-card2.o snd-soc-test-component-objs := test-component.o

obj-$(CONFIG_SND_SIMPLE_CARD_UTILS) += snd-soc-simple-card-utils.o obj-$(CONFIG_SND_SIMPLE_CARD) += snd-soc-simple-card.o obj-$(CONFIG_SND_AUDIO_GRAPH_CARD) += snd-soc-audio-graph-card.o +obj-$(CONFIG_SND_AUDIO_GRAPH_CARD2) += snd-soc-audio-graph-card2.o obj-$(CONFIG_SND_TEST_COMPONENT) += snd-soc-test-component.o diff --git a/sound/soc/generic/audio-graph-card2.c b/sound/soc/generic/audio-graph-card2.c new file mode 100644 index 000000000000..f5edf1368e12 --- /dev/null +++ b/sound/soc/generic/audio-graph-card2.c @@ -0,0 +1,659 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// ASoC Audio Graph Sound Card2 support +// +// Copyright (C) 2020 Renesas Solutions Corp. +// Kuninori Morimoto kuninori.morimoto.gx@renesas.com +// +// based on ${LINUX}/sound/soc/generic/audio-graph-card.c +#include <linux/clk.h> +#include <linux/device.h> +#include <linux/gpio.h> +#include <linux/gpio/consumer.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/of_device.h> +#include <linux/of_gpio.h> +#include <linux/of_graph.h> +#include <linux/platform_device.h> +#include <linux/string.h> +#include <sound/graph_card.h> + +/************************************ + daifmt + ************************************ + ports { + format = "left_j"; + port@0 { + bitclock-master; + sample0: endpoint@0 { + frame-master; + }; + sample1: endpoint@1 { + format = "i2s"; + }; + }; + ... + }; + + You can set daifmt at ports/port/endpoint. + It uses *latest* format, and *share* master settings. + In above case, + sample0: left_j, bitclock-master, frame-master + sample1: i2s, bitclock-master + + NOTE is that card2 is assuming to use .get_fmt. + + If there was no settings, *Codec* will be + bitclock/frame master as default. + see + graph_parse_daifmt(). + + ************************************ + Normal Audio-Graph + ************************************ + + CPU <---> Codec + + sound { + compatible = "audio-graph-card2"; + links = <&cpu>; + }; + + CPU { + cpu: port { + bitclock-master; + frame-master; + cpu_ep: endpoint { remote-endpoint = <&codec_ep>; }; }; + }; + + Codec { + port { codec_ep: endpoint { remote-endpoint = <&cpu_ep>; }; }; + }; + +*/ + +enum graph_type { + GRAPH_NORMAL, +}; + +#define port_to_endpoint(port) of_get_child_by_name(port, "endpoint") + +static enum graph_type graph_get_type(struct asoc_simple_priv *priv, + struct device_node *link) +{ + struct device_node *top; + const char *string; + enum graph_type type = GRAPH_NORMAL; + int ret; + + /* link is port or ports */ + top = of_get_parent(link); + if (of_node_name_eq(top, "ports")) { + of_node_put(top); + top = of_get_parent(top); + } + + ret = of_property_read_string(top, "compatible", &string); + if (ret < 0) + goto end; + +end: +#ifdef DEBUG + { + const char *str = "Normal"; + + dev_dbg(dev, "%pOF (%s)", link, str); + } +#endif + of_node_put(top); + + return type; +} + +static const struct snd_soc_ops graph_ops = { + .startup = asoc_simple_startup, + .shutdown = asoc_simple_shutdown, + .hw_params = asoc_simple_hw_params, +}; + +static int graph_get_dai_id(struct device_node *ep) +{ + struct device_node *node; + struct device_node *endpoint; + struct of_endpoint info; + int i, id; + const u32 *reg; + int ret; + + /* use driver specified DAI ID if exist */ + ret = snd_soc_get_dai_id(ep); + if (ret != -ENOTSUPP) + return ret; + + /* use endpoint/port reg if exist */ + ret = of_graph_parse_endpoint(ep, &info); + if (ret == 0) { + /* + * Because it will count port/endpoint if it doesn't have "reg". + * But, we can't judge whether it has "no reg", or "reg = <0>" + * only of_graph_parse_endpoint(). + * We need to check "reg" property + */ + if (of_get_property(ep, "reg", NULL)) + return info.id; + + node = of_get_parent(ep); + reg = of_get_property(node, "reg", NULL); + of_node_put(node); + if (reg) + return info.port; + } + node = of_graph_get_port_parent(ep); + + /* + * Non HDMI sound case, counting port/endpoint on its DT + * is enough. Let's count it. + */ + i = 0; + id = -1; + for_each_endpoint_of_node(node, endpoint) { + if (endpoint == ep) + id = i; + i++; + } + + of_node_put(node); + + if (id < 0) + return -ENODEV; + + return id; +} + +static int asoc_simple_parse_dai(struct device_node *ep, + struct snd_soc_dai_link_component *dlc, + int *is_single_link) +{ + struct device_node *node; + struct of_phandle_args args; + int ret; + + if (!ep) + return 0; + + node = of_graph_get_port_parent(ep); + + /* Get dai->name */ + args.np = node; + args.args[0] = graph_get_dai_id(ep); + args.args_count = (of_graph_get_endpoint_count(node) > 1); + + /* + * FIXME + * + * Here, dlc->dai_name is pointer to CPU/Codec DAI name. + * If user unbinded CPU or Codec driver, but not for Sound Card, + * dlc->dai_name is keeping unbinded CPU or Codec + * driver's pointer. + * + * If user re-bind CPU or Codec driver again, ALSA SoC will try + * to rebind Card via snd_soc_try_rebind_card(), but because of + * above reason, it might can't bind Sound Card. + * Because Sound Card is pointing to released dai_name pointer. + * + * To avoid this rebind Card issue, + * 1) It needs to alloc memory to keep dai_name eventhough + * CPU or Codec driver was unbinded, or + * 2) user need to rebind Sound Card everytime + * if he unbinded CPU or Codec. + */ + ret = snd_soc_get_dai_name(&args, &dlc->dai_name); + if (ret < 0) + return ret; + + dlc->of_node = node; + + if (is_single_link) + *is_single_link = of_graph_get_endpoint_count(node) == 1; + + return 0; +} + +static void graph_parse_mclk_fs(struct device_node *ep, + struct simple_dai_props *props) +{ + struct device_node *port = of_get_parent(ep); + struct device_node *ports = of_get_parent(port); + + if (of_node_name_eq(ports, "ports")) + of_property_read_u32(ports, "mclk-fs", &props->mclk_fs); + of_property_read_u32(port, "mclk-fs", &props->mclk_fs); + of_property_read_u32(ep, "mclk-fs", &props->mclk_fs); + + of_node_put(port); + of_node_put(ports); +} + +static int graph_dai_init(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_dai *dai; + struct device *dev = rtd->dev; + int i; + + /* + * Indicate assumption for a while. + * It will be removed. + */ + for_each_rtd_dais(rtd, i, dai) + if (!dai->driver->ops || + !dai->driver->ops->auto_selectable_formats) { + dev_warn_once(dev, "audio-graph-card2 is assuming " + "DAI driver (%s) has .auto_selectable_formats\n", dai->name); + break; + } + + return asoc_simple_dai_init(rtd); +} + +static int graph_parse_node(struct asoc_simple_priv *priv, + struct device_node *ep, + struct link_info *li, + int idx, int *cpu) +{ + struct device *dev = simple_priv_to_dev(priv); + struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link); + struct simple_dai_props *dai_props = simple_priv_to_props(priv, li->link); + struct snd_soc_dai_link_component *dlc; + struct asoc_simple_dai *dai; + int ret; + + if (cpu) { + dlc = asoc_link_to_cpu(dai_link, idx); + dai = simple_props_to_dai_cpu(dai_props, idx); + } else { + dlc = asoc_link_to_codec(dai_link, idx); + dai = simple_props_to_dai_codec(dai_props, idx); + } + + graph_parse_mclk_fs(ep, dai_props); + + ret = asoc_simple_parse_dai(ep, dlc, cpu); + if (ret < 0) + return ret; + + ret = asoc_simple_parse_tdm(ep, dai); + if (ret < 0) + return ret; + + ret = asoc_simple_parse_clk(dev, ep, dai, dlc); + if (ret < 0) + return ret; + + return 0; +} + +static void graph_parse_daifmt(struct device_node *node, + unsigned int *daifmt, unsigned int *bit_frame) +{ + unsigned int fmt; + + /* + * see also above "daifmt" explanation + * and samples. + */ + + /* + * ports { + * (A) + * port { + * (B) + * endpoint { + * (C) + * }; + * }; + * }; + * }; + */ + + /* + * clock_provider: + * + * It can be judged it is provider + * if (A) or (B) or (C) has bitclock-master / frame-master flag. + * + * use "or" + */ + *bit_frame |= snd_soc_daifmt_parse_clock_provider_as_bitmap(node, NULL); + +#define update_daifmt(name) \ + if (!(*daifmt & SND_SOC_DAIFMT_##name##_MASK) && \ + (fmt & SND_SOC_DAIFMT_##name##_MASK)) \ + *daifmt |= fmt & SND_SOC_DAIFMT_##name##_MASK; + + /* + * format + * + * This function is called by (C) -> (B) -> (A) order. + * Set if applicable part was not yet set. + */ + fmt = snd_soc_daifmt_parse_format(node, NULL); + update_daifmt(FORMAT); + update_daifmt(CLOCK); + update_daifmt(INV); +} + +static int graph_link_init(struct asoc_simple_priv *priv, + struct device_node *ep, + struct link_info *li, + int is_cpu_node, + char *name) +{ + struct device *dev = simple_priv_to_dev(priv); + struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link); + struct device_node *port = of_get_parent(ep); + struct device_node *ports = of_get_parent(port); + unsigned int daifmt = 0, daiclk = 0; + unsigned int bit_frame = 0; + + /* + * ports { + * (A) + * port { + * (B) + * endpoint { + * (C) + * }; + * }; + * }; + * }; + */ + graph_parse_daifmt(ep, &daifmt, &bit_frame); /* (C) */ + graph_parse_daifmt(port, &daifmt, &bit_frame); /* (B) */ + if (of_node_name_eq(ports, "ports")) + graph_parse_daifmt(ports, &daifmt, &bit_frame); /* (A) */ + + /* + * convert bit_frame + * We need to flip clock_provider if it was CPU node, + * because it is Codec base. + */ + daiclk = snd_soc_daifmt_clock_provider_from_bitmap(bit_frame); + if (is_cpu_node) + daiclk = snd_soc_daifmt_clock_provider_fliped(daiclk); + + if (daifmt) + dev_warn(dev, "don't use format. implemente .set_fmt instead (%pOFf)\n", port); + + dai_link->dai_fmt = daifmt | daiclk; + dai_link->init = graph_dai_init; + dai_link->ops = &graph_ops; + if (priv->ops) + dai_link->ops = priv->ops; + + return asoc_simple_set_dailink_name(dev, dai_link, name); +} + +int audio_graph2_link_normal(struct asoc_simple_priv *priv, + struct device_node *lnk, + struct link_info *li) +{ + struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link); + struct device_node *cpu_port = lnk; + struct device_node *cpu_ep = port_to_endpoint(cpu_port); + struct device_node *codec_ep = of_graph_get_remote_endpoint(cpu_ep); + struct snd_soc_dai_link_component *cpus = asoc_link_to_cpu(dai_link, 0); + struct snd_soc_dai_link_component *codecs = asoc_link_to_codec(dai_link, 0); + char dai_name[64]; + int ret, is_single_links = 0; + + ret = graph_parse_node(priv, cpu_ep, li, 0, &is_single_links); + if (ret < 0) + goto err; + + ret = graph_parse_node(priv, codec_ep, li, 0, NULL); + if (ret < 0) + goto err; + + snprintf(dai_name, sizeof(dai_name), + "%s-%s", cpus->dai_name, codecs->dai_name); + + asoc_simple_canonicalize_cpu(cpus, is_single_links); + + ret = graph_link_init(priv, cpu_ep, li, 1, dai_name); + if (ret < 0) + goto err; + +err: + of_node_put(cpu_ep); + of_node_put(codec_ep); + + return ret; +} +EXPORT_SYMBOL_GPL(audio_graph2_link_normal); + +static int graph_link(struct asoc_simple_priv *priv, + struct graph_custom_hooks *hooks, + enum graph_type gtype, + struct device_node *lnk, + struct link_info *li) +{ + struct device *dev = simple_priv_to_dev(priv); + GRAPH_CUSTOM func = NULL; + int ret = -EINVAL; + + switch (gtype) { + case GRAPH_NORMAL: + if (hooks && hooks->custom_normal) + func = hooks->custom_normal; + else + func = audio_graph2_link_normal; + break; + } + + if (!func) { + dev_err(dev, "non supported gtype (%d)\n", gtype); + goto err; + } + + ret = func(priv, lnk, li); + if (ret < 0) + goto err; + + li->link++; +err: + return ret; +} + +static int graph_count_normal(struct asoc_simple_priv *priv, + struct device_node *lnk, + struct link_info *li) +{ + /* + * CPU { + * => lnk: port { endpoint { .. }; }; + * }; + */ + li->num[li->link].cpus = 1; + li->num[li->link].codecs = 1; + + return 0; +} + +static int graph_count(struct asoc_simple_priv *priv, + struct graph_custom_hooks *hooks, + enum graph_type gtype, + struct device_node *lnk, + struct link_info *li) +{ + struct device *dev = simple_priv_to_dev(priv); + GRAPH_CUSTOM func = NULL; + int ret = -EINVAL; + + if (li->link >= SNDRV_MAX_LINKS) { + dev_err(dev, "too many links\n"); + return ret; + } + + switch (gtype) { + case GRAPH_NORMAL: + func = graph_count_normal; + break; + } + + if (!func) { + dev_err(dev, "non supported gtype (%d)\n", gtype); + goto err; + } + + ret = func(priv, lnk, li); + if (ret < 0) + goto err; + + li->link++; +err: + return ret; +} + +static int graph_for_each_link(struct asoc_simple_priv *priv, + struct graph_custom_hooks *hooks, + struct link_info *li, + int (*func)(struct asoc_simple_priv *priv, + struct graph_custom_hooks *hooks, + enum graph_type gtype, + struct device_node *lnk, + struct link_info *li)) +{ + struct of_phandle_iterator it; + struct device *dev = simple_priv_to_dev(priv); + struct device_node *node = dev->of_node; + struct device_node *lnk; + enum graph_type gtype; + int rc, ret; + + /* loop for all listed CPU port */ + of_for_each_phandle(&it, rc, node, "links", NULL, 0) { + lnk = it.node; + + gtype = graph_get_type(priv, lnk); + + ret = func(priv, hooks, gtype, lnk, li); + if (ret < 0) + return ret; + } + + return 0; +} + +int audio_graph2_parse_of(struct asoc_simple_priv *priv, struct device *dev, + struct graph_custom_hooks *hooks) +{ + struct snd_soc_card *card = simple_priv_to_card(priv); + struct link_info *li; + int ret; + + dev_warn(dev, "Audio Graph Card2 is still under Experimental stage\n"); + + li = devm_kzalloc(dev, sizeof(*li), GFP_KERNEL); + if (!li) + return -ENOMEM; + + card->probe = asoc_graph_card_probe; + card->owner = THIS_MODULE; + card->dev = dev; + + if ((hooks) && (hooks)->hook_pre) { + ret = (hooks)->hook_pre(priv); + if (ret < 0) + goto err; + } + + ret = graph_for_each_link(priv, hooks, li, graph_count); + if (!li->link) + ret = -EINVAL; + if (ret < 0) + goto err; + + ret = asoc_simple_init_priv(priv, li); + if (ret < 0) + goto err; + + priv->pa_gpio = devm_gpiod_get_optional(dev, "pa", GPIOD_OUT_LOW); + if (IS_ERR(priv->pa_gpio)) { + ret = PTR_ERR(priv->pa_gpio); + dev_err(dev, "failed to get amplifier gpio: %d\n", ret); + goto err; + } + + ret = asoc_simple_parse_widgets(card, NULL); + if (ret < 0) + goto err; + + ret = asoc_simple_parse_routing(card, NULL); + if (ret < 0) + goto err; + + memset(li, 0, sizeof(*li)); + ret = graph_for_each_link(priv, hooks, li, graph_link); + if (ret < 0) + goto err; + + ret = asoc_simple_parse_card_name(card, NULL); + if (ret < 0) + goto err; + + snd_soc_card_set_drvdata(card, priv); + + if ((hooks) && (hooks)->hook_post) { + ret = (hooks)->hook_post(priv); + if (ret < 0) + goto err; + } + + asoc_simple_debug_info(priv); + + ret = devm_snd_soc_register_card(dev, card); +err: + devm_kfree(dev, li); + + if ((ret < 0) && (ret != -EPROBE_DEFER)) + dev_err(dev, "parse error %d\n", ret); + + return ret; +} +EXPORT_SYMBOL_GPL(audio_graph2_parse_of); + +static int graph_probe(struct platform_device *pdev) +{ + struct asoc_simple_priv *priv; + struct device *dev = &pdev->dev; + + /* Allocate the private data and the DAI link array */ + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + return audio_graph2_parse_of(priv, dev, NULL); +} + +static const struct of_device_id graph_of_match[] = { + { .compatible = "audio-graph-card2", }, + {}, +}; +MODULE_DEVICE_TABLE(of, graph_of_match); + +static struct platform_driver graph_card = { + .driver = { + .name = "asoc-audio-graph-card2", + .pm = &snd_soc_pm_ops, + .of_match_table = graph_of_match, + }, + .probe = graph_probe, + .remove = asoc_simple_remove, +}; +module_platform_driver(graph_card); + +MODULE_ALIAS("platform:asoc-audio-graph-card2"); +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("ASoC Audio Graph Sound Card2"); +MODULE_AUTHOR("Kuninori Morimoto kuninori.morimoto.gx@renesas.com");

From: Kuninori Morimoto kuninori.morimoto.gx@renesas.com

This patch adds Multi CPU/Codec support to audio-graph-card2. One note today is that ASoC doesn't support N CPUs to M CODECs (It supports "1 CPU to N Codecs" or "N CPUs to N Codecs"). Multi CPU/Codec support needs to have extra node (X) to indicate it.

<- multi_CPU -> <-- multi_Codec --> ****** CPU1 <--> * * <--> Codec1 CPU2 <--> * * <--> Codec2 ******

sound { compatible = "audio-graph-card2";

(A) links = <&multi>; };

(X) multi_CPU_CODEC { compatible = "audio-graph-card2-multi";

/* for CPU */ (B) multi: ports@0 { port@0 { mcpu1_ep: endpoint { remote-endpoint = <&cpu1_ep>; }; }; port@1 { mcpu2_ep: endpoint { remote-endpoint = <&cpu2_ep>; }; }; /* for Codec */ ports@1 { port@0 { mcodec1_ep: endpoint { remote-endpoint = <&codec1_ep>; }; }; port@1 { mcodec2_ep: endpoint { remote-endpoint = <&codec2_ep>; }; }; }; };

CPU { ports { bitclock-master; frame-master; port@0 { cpu1_ep: endpoint { remote-endpoint = <&mcpu1_ep>; }; }; port@1 { cpu2_ep: endpoint { remote-endpoint = <&mcpu2_ep>; }; }; }; };

Codec { ports { port@0 { codec1_ep: endpoint { remote-endpoint = <&mcodec1_ep>; }; }; port@1 { codec2_ep: endpoint { remote-endpoint = <&mcodec2_ep>; }; }; }; };

"links" need to indicate Multi connection's CPU node (A)(B).

Link: https://lore.kernel.org/r/87k0xszlep.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com --- include/sound/graph_card.h | 3 + sound/soc/generic/audio-graph-card2.c | 172 ++++++++++++++++++++++++++ 2 files changed, 175 insertions(+)

diff --git a/include/sound/graph_card.h b/include/sound/graph_card.h index 03df4c5a7151..d0ccb7afda78 100644 --- a/include/sound/graph_card.h +++ b/include/sound/graph_card.h @@ -18,6 +18,7 @@ struct graph_custom_hooks { int (*hook_post)(struct asoc_simple_priv *priv); GRAPH_CUSTOM custom_normal; GRAPH_CUSTOM custom_dpcm; + GRAPH_CUSTOM custom_multi; };

int audio_graph_parse_of(struct asoc_simple_priv *priv, struct device *dev); @@ -28,5 +29,7 @@ int audio_graph2_link_normal(struct asoc_simple_priv *priv, struct device_node *lnk, struct link_info *li); int audio_graph2_link_dpcm(struct asoc_simple_priv *priv, struct device_node *lnk, struct link_info *li); +int audio_graph2_link_multi(struct asoc_simple_priv *priv, + struct device_node *lnk, struct link_info *li);

#endif /* __GRAPH_CARD_H */ diff --git a/sound/soc/generic/audio-graph-card2.c b/sound/soc/generic/audio-graph-card2.c index b288975ffde2..f77cf02c0eef 100644 --- a/sound/soc/generic/audio-graph-card2.c +++ b/sound/soc/generic/audio-graph-card2.c @@ -134,14 +134,66 @@ ... }; }; + + + ************************************ + Multi-CPU/Codec + ************************************ + +<- multi_CPU -> + <-- multi_Codec --> + ****** +CPU1 <--> * * <--> Codec1 +CPU2 <--> * * <--> Codec2 + ****** + *NOTE* + N cpus to M codecs is not yet supported + at ASoC framework for now. + + sound { + compatible = "audio-graph-card2"; + + links = <&multi>; + }; + + multi_CPU_CODEC { + compatible = "audio-graph-card2-multi"; + + multi: ports@0 { + port@0 { mcpu1_ep: endpoint { remote-endpoint = <&cpu1_ep>; }; }; + port@1 { mcpu2_ep: endpoint { remote-endpoint = <&cpu2_ep>; }; }; + }; + ports@1 { + port@0 { mcodec1_ep: endpoint { remote-endpoint = <&codec1_ep>; }; }; + port@1 { mcodec2_ep: endpoint { remote-endpoint = <&codec2_ep>; }; }; + }; +}; + + CPU { + ports { + bitclock-master; + frame-master; + port@0 { cpu1_ep: endpoint { remote-endpoint = <&mcpu1_ep>; }; }; + port@1 { cpu2_ep: endpoint { remote-endpoint = <&mcpu2_ep>; }; }; + }; + }; + + Codec { + ports { + port@0 { codec1_ep: endpoint { remote-endpoint = <&mcodec1_ep>; }; }; + port@1 { codec2_ep: endpoint { remote-endpoint = <&mcodec2_ep>; }; }; + }; + }; */

enum graph_type { GRAPH_NORMAL, GRAPH_DPCM, + GRAPH_MULTI, };

#define GRAPH_COMPATIBLE_DPCM "audio-graph-card2-dsp" +#define GRAPH_COMPATIBLE_MULTI "audio-graph-card2-multi"

#define port_to_endpoint(port) of_get_child_by_name(port, "endpoint")

@@ -166,6 +218,8 @@ static enum graph_type graph_get_type(struct asoc_simple_priv *priv,

if (strcmp(string, GRAPH_COMPATIBLE_DPCM) == 0) type = GRAPH_DPCM; + else if (strcmp(string, GRAPH_COMPATIBLE_MULTI) == 0) + type = GRAPH_MULTI; end: #ifdef DEBUG { @@ -179,6 +233,9 @@ static enum graph_type graph_get_type(struct asoc_simple_priv *priv, else str = "DPCM Back-End"; break; + case GRAPH_MULTI: + str = "MULTI"; + break; default: break; } @@ -649,6 +706,77 @@ int audio_graph2_link_dpcm(struct asoc_simple_priv *priv, } EXPORT_SYMBOL_GPL(audio_graph2_link_dpcm);

+int audio_graph2_link_multi(struct asoc_simple_priv *priv, + struct device_node *lnk, + struct link_info *li) +{ + struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link); + struct device_node *top = of_get_parent(lnk); + struct device_node *first_rep = NULL; + struct device_node *ports = lnk; + struct device_node *ep; + char dai_name[64]; + int is_cpu = 1; + int i; + + /* + * top: MULTI { + * compatible = "audio-graph-card2-multi"; + * + * // CPU + * loop-0 ports@0 { + * port@0 { ep: endpoint { remote-endpoint = <&r_ep>; }; }; + * ... + * }; + * // Codec + * loop-1 ports@1 { + * ... + * }; + * }; + */ +ports_loop: + i = 0; + for_each_endpoint_of_node(ports, ep) { + struct device_node *rep = of_graph_get_remote_endpoint(ep); + int ret, is_single_links = 0; + + if (!first_rep) + first_rep = rep; + + ret = graph_parse_node(priv, rep, li, i, + is_cpu ? &is_single_links : NULL); + + of_node_put(ep); + of_node_put(rep); + + if (ret < 0) + return ret; + + if (is_cpu) { + struct snd_soc_dai_link_component *cpus = asoc_link_to_cpu(dai_link, i); + + asoc_simple_canonicalize_cpu(cpus, is_single_links); + } + + i++; + } + + /* + * 1st turn was for CPU ports (is_cpu = 1) + * 2nd turn is for Codec ports (is_cpu = 0) + */ + is_cpu--; + if (is_cpu == 0) { + ports = of_get_next_child(top, ports); + goto ports_loop; + } + + snprintf(dai_name, sizeof(dai_name), "multi-%pOFP", top); + + return graph_link_init(priv, first_rep, li, 1, dai_name); +} +EXPORT_SYMBOL_GPL(audio_graph2_link_multi); + static int graph_link(struct asoc_simple_priv *priv, struct graph_custom_hooks *hooks, enum graph_type gtype, @@ -672,6 +800,12 @@ static int graph_link(struct asoc_simple_priv *priv, else func = audio_graph2_link_dpcm; break; + case GRAPH_MULTI: + if (hooks && hooks->custom_multi) + func = hooks->custom_multi; + else + func = audio_graph2_link_multi; + break; }

if (!func) { @@ -734,6 +868,41 @@ static int graph_count_dsp(struct asoc_simple_priv *priv, return 0; }

+static int graph_count_multi(struct asoc_simple_priv *priv, + struct device_node *lnk, + struct link_info *li) +{ + struct device_node *top = of_get_parent(lnk); + struct device_node *cpu_ports = lnk; + struct device_node *codec_ports = of_get_next_child(top, cpu_ports); + + of_node_get(cpu_ports); /* for vs of_get_next_child() */ + + /* + * MULTI { + * compatible = "audio-graph-card2-multi"; + * + * // CPU + * => lnk: ports@0 { + * port@0 { endpoint { ... }; }; + * ... + * }; + * // Codec + * ports@1 { + * port@0 { endpoint { ... }; }; + * ... + * }; + * }; + */ + li->num[li->link].cpus = of_graph_get_endpoint_count(cpu_ports); + li->num[li->link].codecs = of_graph_get_endpoint_count(codec_ports); + + of_node_put(top); + of_node_put(codec_ports); + + return 0; +} + static int graph_count(struct asoc_simple_priv *priv, struct graph_custom_hooks *hooks, enum graph_type gtype, @@ -756,6 +925,9 @@ static int graph_count(struct asoc_simple_priv *priv, case GRAPH_DPCM: func = graph_count_dsp; break; + case GRAPH_MULTI: + func = graph_count_multi; + break; }

if (!func) {

From: Kuninori Morimoto kuninori.morimoto.gx@renesas.com

This patch adds Audio Graph Card2 Yaml bindings. It is similar to Audio Graph Card, but different.

- audio-graph-card used "dais" to indicate DAI-links, audio-graph-card2 uses "links" to it.

- audio-graph-card used "phandle" to indicate bitclock/frame-master, audio-graph-card2 uses flag to it.

- audio-graph-card used "format" to indicate DAI format, audio-graph-card2 assumes CPU/Codec drivers have .get_fmt support.

Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com --- .../sound/audio-graph-card2-items.yaml | 80 +++++++++++++++++++ .../bindings/sound/audio-graph-card2.yaml | 51 ++++++++++++ 2 files changed, 131 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/audio-graph-card2-items.yaml create mode 100644 Documentation/devicetree/bindings/sound/audio-graph-card2.yaml

diff --git a/Documentation/devicetree/bindings/sound/audio-graph-card2-items.yaml b/Documentation/devicetree/bindings/sound/audio-graph-card2-items.yaml new file mode 100644 index 000000000000..ec94cad6b939 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/audio-graph-card2-items.yaml @@ -0,0 +1,80 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/audio-graph-card2-items.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Audio Graph Card2 Items Bindings + +maintainers: + - Kuninori Morimoto kuninori.morimoto.gx@renesas.com + +properties: + compatible: + enum: + - audio-graph-card2-dsp + - audio-graph-card2-multi + - audio-graph-card2-codec2codec + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + +patternProperties: + "^ports(@[0-1])?$": + $ref: /schemas/graph.yaml#/properties/ports + properties: + port(@[0-9a-f]+)?: + $ref: audio-graph-port.yaml# + unevaluatedProperties: false + additionalProperties: true + +required: + - compatible + +additionalProperties: true + +examples: + - | + mix { + compatible = "audio-graph-card2-dsp"; + + /* sample ports + ports@0 { + port@0 { mix_fe0_ep: endpoint { remote-endpoint = <&cpu0_ep>; }; }; + port@1 { mix_fe1_ep: endpoint { remote-endpoint = <&cpu1_ep>; }; }; + }; + ports@1 { + port@0 { mix_be0_ep: endpoint { remote-endpoint = <&codec0_ep>; }; }; + }; + */ + }; + + multi { + compatible = "audio-graph-card2-multi"; + + /* sample ports + ports@0 { + port@0 { multi_00_ep: endpoint { remote-endpoint = <&cpu2_ep>; }; }; + port@1 { multi_01_ep: endpoint { remote-endpoint = <&cpu3_ep>; }; }; + }; + ports@1 { + port@0 { multi_10_ep: endpoint { remote-endpoint = <&codec1_ep>; }; }; + port@1 { multi_11_ep: endpoint { remote-endpoint = <&codec2_ep>; }; }; + }; + */ + }; + + codec2codec { + compatible = "audio-graph-card2-codec2codec"; + + /* sample ports + rate = <48000>; + ports { + port@0 { c2c_0_ep: endpoint { remote-endpoint = <&codec3_ep>; }; }; + port@1 { c2c_1_ep: endpoint { remote-endpoint = <&codec4_ep>; }; }; + }; + */ + }; diff --git a/Documentation/devicetree/bindings/sound/audio-graph-card2.yaml b/Documentation/devicetree/bindings/sound/audio-graph-card2.yaml new file mode 100644 index 000000000000..4975f88de025 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/audio-graph-card2.yaml @@ -0,0 +1,51 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/audio-graph-card2.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Audio Graph Card2 Device Tree Bindings + +maintainers: + - Kuninori Morimoto kuninori.morimoto.gx@renesas.com + +properties: + compatible: + enum: + - audio-graph-card2 + links: + $ref: /schemas/types.yaml#/definitions/phandle-array + label: + maxItems: 1 + routing: + description: | + A list of the connections between audio components. + Each entry is a pair of strings, the first being the + connection's sink, the second being the connection's source. + $ref: /schemas/types.yaml#/definitions/non-unique-string-array + +required: + - compatible + - links + +additionalProperties: false + +examples: + - | + sound { + compatible = "audio-graph-card2"; + + links = <&cpu_port>; + }; + + cpu { + compatible = "cpu-driver"; + + cpu_port: port { cpu_ep: endpoint { remote-endpoint = <&codec_ep>; }; }; + }; + + codec { + compatible = "codec-driver"; + + port { codec_ep: endpoint { remote-endpoint = <&cpu_ep>; }; }; + };

From: Kuninori Morimoto kuninori.morimoto.gx@renesas.com

One of audio-graph-card issue was that it can't handle *user own* card settings. We can expand audio-graph-card if it was *generic* feature. Latest audio-graph-card has customizing support.

Audio Graph Card2 also have customize support. This means user can use its own special settings by using audio-graph-card2 driver parsing.

This patch adds Audio Graph Cars2 customize sample driver. It can get basic audio-graph-card2 setups by calling asoc_graph_parse_of2(...), and user can update/expand each own setting on it.

Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com --- sound/soc/generic/Kconfig | 6 + sound/soc/generic/Makefile | 2 + sound/soc/generic/sample-custom-card.c | 160 +++++++++++++++++++++++++ 3 files changed, 168 insertions(+) create mode 100644 sound/soc/generic/sample-custom-card.c

diff --git a/sound/soc/generic/Kconfig b/sound/soc/generic/Kconfig index 3385c488cd85..c7cd0488e4fc 100644 --- a/sound/soc/generic/Kconfig +++ b/sound/soc/generic/Kconfig @@ -26,6 +26,12 @@ config SND_AUDIO_GRAPH_CARD2 This option enables generic simple sound card support with OF-graph DT bindings.

+config SND_SAMPLE_CUSTOM_CARD + tristate "ASoC Audio Graph Sound Card2 base custom card sample support" + depends on OF && SND_AUDIO_GRAPH_CARD2 + help + This option enables Audio Graph Sound Card2 base custom card support + config SND_TEST_COMPONENT tristate "ASoC Test component sound support" depends on OF diff --git a/sound/soc/generic/Makefile b/sound/soc/generic/Makefile index b480f47a330d..1b438202609c 100644 --- a/sound/soc/generic/Makefile +++ b/sound/soc/generic/Makefile @@ -3,10 +3,12 @@ snd-soc-simple-card-utils-objs := simple-card-utils.o snd-soc-simple-card-objs := simple-card.o snd-soc-audio-graph-card-objs := audio-graph-card.o snd-soc-audio-graph-card2-objs := audio-graph-card2.o +snd-soc-sample-custom-card-objs := sample-custom-card.o snd-soc-test-component-objs := test-component.o

obj-$(CONFIG_SND_SIMPLE_CARD_UTILS) += snd-soc-simple-card-utils.o obj-$(CONFIG_SND_SIMPLE_CARD) += snd-soc-simple-card.o obj-$(CONFIG_SND_AUDIO_GRAPH_CARD) += snd-soc-audio-graph-card.o obj-$(CONFIG_SND_AUDIO_GRAPH_CARD2) += snd-soc-audio-graph-card2.o +obj-$(CONFIG_SND_SAMPLE_CUSTOM_CARD) += snd-soc-sample-custom-card.o obj-$(CONFIG_SND_TEST_COMPONENT) += snd-soc-test-component.o diff --git a/sound/soc/generic/sample-custom-card.c b/sound/soc/generic/sample-custom-card.c new file mode 100644 index 000000000000..e7b321fb5db9 --- /dev/null +++ b/sound/soc/generic/sample-custom-card.c @@ -0,0 +1,160 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// sample-custom-card.c +// +// Copyright (c) 2020 Kuninori Morimoto kuninori.morimoto.gx@renesas.com +// +#include <linux/module.h> +#include <linux/of_gpio.h> +#include <linux/platform_device.h> +#include <sound/graph_card.h> + +/* + * Custom driver can have own priv + * which includes asoc_simple_priv. + */ +struct custom_priv { + struct asoc_simple_priv simple_priv; + + /* custom driver's own params */ + int custom_params; +}; + +/* You can get custom_priv from simple_priv */ +#define simple_to_custom(simple) container_of((simple), struct custom_priv, simple_priv) + +static int custom_card_probe(struct snd_soc_card *card) +{ + struct asoc_simple_priv *simple_priv = snd_soc_card_get_drvdata(card); + struct custom_priv *custom_priv = simple_to_custom(simple_priv); + struct device *dev = simple_priv_to_dev(simple_priv); + + dev_info(dev, "custom probe\n"); + + custom_priv->custom_params = 1; + + /* you can use generic probe function */ + return asoc_graph_card_probe(card); +} + +static int custom_hook_pre(struct asoc_simple_priv *priv) +{ + struct device *dev = simple_priv_to_dev(priv); + + /* You can custom before parsing */ + dev_info(dev, "hook : %s\n", __func__); + + return 0; +} + +static int custom_hook_post(struct asoc_simple_priv *priv) +{ + struct device *dev = simple_priv_to_dev(priv); + struct snd_soc_card *card; + + /* You can custom after parsing */ + dev_info(dev, "hook : %s\n", __func__); + + card = simple_priv_to_card(priv); + card->probe = custom_card_probe; /* overwrite .probe */ + + return 0; +} + +static int custom_dpcm(struct asoc_simple_priv *priv, + struct device_node *lnk, + struct link_info *li) +{ + struct device *dev = simple_priv_to_dev(priv); + + /* You can custom for DPCM parsing */ + dev_info(dev, "hook : %s\n", __func__); + + return audio_graph2_link_dpcm(priv, lnk, li); +} + +static int custom_c2c(struct asoc_simple_priv *priv, + struct device_node *lnk, + struct link_info *li) +{ + struct device *dev = simple_priv_to_dev(priv); + + /* You can custom for Codec2Codec parsing */ + dev_info(dev, "hook : %s\n", __func__); + + return audio_graph2_link_c2c(priv, lnk, li); +} + +/* + * audio-graph-card2 has many hooks for your customizing. + */ +static struct graph_custom_hooks custom_hooks = { + .hook_pre = custom_hook_pre, + .hook_post = custom_hook_post, + .custom_dpcm = custom_dpcm, + .custom_c2c = custom_c2c, + /* and more ... */ +}; + +static int custom_startup(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); + struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card); + struct device *dev = simple_priv_to_dev(priv); + + dev_info(dev, "custom startup\n"); + + return asoc_simple_startup(substream); +} + +/* You can use custom ops */ +static const struct snd_soc_ops custom_ops = { + .startup = custom_startup, + .shutdown = asoc_simple_shutdown, + .hw_params = asoc_simple_hw_params, +}; + +static int custom_probe(struct platform_device *pdev) +{ + struct custom_priv *custom_priv; + struct asoc_simple_priv *simple_priv; + struct device *dev = &pdev->dev; + int ret; + + custom_priv = devm_kzalloc(dev, sizeof(*custom_priv), GFP_KERNEL); + if (!custom_priv) + return -ENOMEM; + + simple_priv = &custom_priv->simple_priv; + simple_priv->ops = &custom_ops; /* customize dai_link ops */ + + /* use audio-graph-card2 parsing with own custom hooks */ + ret = audio_graph2_parse_of(simple_priv, dev, &custom_hooks); + if (ret < 0) + return ret; + + /* customize more if needed */ + + return 0; +} + +static const struct of_device_id custom_of_match[] = { + { .compatible = "sample-custom-card", }, + {}, +}; +MODULE_DEVICE_TABLE(of, custom_of_match); + +static struct platform_driver custom_card = { + .driver = { + .name = "sample-custom-card", + .of_match_table = custom_of_match, + }, + .probe = custom_probe, + .remove = asoc_simple_remove, +}; +module_platform_driver(custom_card); + +MODULE_ALIAS("platform:asoc-sample-custom-card"); +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("ASoC Audio Graph Sound Card2 Custom"); +MODULE_AUTHOR("Kuninori Morimoto kuninori.morimoto.gx@renesas.com");

From: Kuninori Morimoto kuninori.morimoto.gx@renesas.com

This patch adds DPCM sample to audio-graph-card2-sample.dtsi. This sample is assuming MIXer connection.

CPU2 --\ +-- Codec2 CPU3 --/

Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com --- .../soc/generic/audio-graph-card2-sample.dtsi | 28 +++++++++++++++++++ 1 file changed, 28 insertions(+)

diff --git a/sound/soc/generic/audio-graph-card2-sample.dtsi b/sound/soc/generic/audio-graph-card2-sample.dtsi index 5e83bfed1781..9aab6be176e5 100644 --- a/sound/soc/generic/audio-graph-card2-sample.dtsi +++ b/sound/soc/generic/audio-graph-card2-sample.dtsi @@ -20,6 +20,8 @@ / { /* * cpu0 <--> codec0 // Normal * cpu1 <--> codec1 // Normal + * cpu2 <--> codec2 // DPCM + * cpu3 <-/ // DPCM */ card2 { /* @@ -30,10 +32,27 @@ card2 { */ compatible = "sample-custom-card";

+ routing = "TC DAI2 Playback", "DAI2 Playback", + "TC DAI2 Playback", "DAI3 Playback", + "DAI2 Capture", "TC DAI2 Capture", + "DAI3 Capture", "TC DAI2 Capture"; + links = <&cpu0 &cpu1 /* normal: cpu side only */ + &mix_fe0 &mix_fe1 &mix_be0 /* dsp : both fe/be */ >; };

+ mix { + compatible = "audio-graph-card2-dsp"; + DSP_FE: ports@0 { + mix_fe0: port@0 { mix_fe0_ep: endpoint { remote-endpoint = <&cpu2_ep>; }; }; + mix_fe1: port@1 { mix_fe1_ep: endpoint { remote-endpoint = <&cpu3_ep>; }; }; + }; + DSP_BE: ports@1 { + mix_be0: port { mix_be0_ep: endpoint { remote-endpoint = <&codec2_ep>; }; }; + }; + }; + test_cpu { /* * update compatible to indicate more detail behaviour @@ -48,6 +67,8 @@ ports { frame-master; cpu0: port@0 { cpu0_ep: endpoint { remote-endpoint = <&codec0_ep>; }; }; cpu1: port@1 { cpu1_ep: endpoint { remote-endpoint = <&codec1_ep>; }; }; + port@2 { cpu2_ep: endpoint { remote-endpoint = <&mix_fe0_ep>; }; }; + port@3 { cpu3_ep: endpoint { remote-endpoint = <&mix_fe1_ep>; }; }; }; };

@@ -61,8 +82,15 @@ test_codec { */ compatible = "test-codec"; ports { + /* + * prefix can be added to *component*, + * see card2::routing + */ + prefix = "TC"; + port@0 { codec0_ep: endpoint { remote-endpoint = <&cpu0_ep>; }; }; port@1 { codec1_ep: endpoint { remote-endpoint = <&cpu1_ep>; }; }; + port@2 { codec2_ep: endpoint { remote-endpoint = <&mix_be0_ep>; }; }; }; }; };

From: Kuninori Morimoto kuninori.morimoto.gx@renesas.com

This patch adds Codec2Codec sample to audio-graph-card2-sample.dtsi. Because it can use very basic connection only for now, it can use only

- 2channels - S32_LE format

Test-Component driver has "IN" and "OUT" widget. Thus the route is

+--+ | | <-- Codec5 | | --> Codec6 +--+

(*) "IN" -> "DAI5 Capture" -> "DAI6 Playback" -> "OUT"

(*) routing is using "TC" prefix on this sample.

One note here is that it will start works when it boot. In other words we can't stop it so far. We need to update driver for it in the future.

Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com --- .../soc/generic/audio-graph-card2-sample.dtsi | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/sound/soc/generic/audio-graph-card2-sample.dtsi b/sound/soc/generic/audio-graph-card2-sample.dtsi index 1d18aba22011..9d491cf6b776 100644 --- a/sound/soc/generic/audio-graph-card2-sample.dtsi +++ b/sound/soc/generic/audio-graph-card2-sample.dtsi @@ -24,6 +24,8 @@ / { * cpu3 <-/ // DPCM * cpu4 <==> codec3 // Multi (*1) * cpu5 <==> codec4 // Multi (*1) + * /=> codec5 // Codec2Codec + * => codec6 // Codec2Codec */ card2 { /* @@ -37,11 +39,14 @@ card2 { routing = "TC DAI2 Playback", "DAI2 Playback", "TC DAI2 Playback", "DAI3 Playback", "DAI2 Capture", "TC DAI2 Capture", - "DAI3 Capture", "TC DAI2 Capture"; + "DAI3 Capture", "TC DAI2 Capture", + "TC OUT" ,"TC DAI6 Playback", + "TC DAI5 Capture", "TC IN";

links = <&cpu0 &cpu1 /* normal: cpu side only */ &mix_fe0 &mix_fe1 &mix_be0 /* dsp : both fe/be */ &multi_cpu /* multi : cpu side only */ + &c2c /* c2c : first one only */ >; };

@@ -76,6 +81,16 @@ multi_codec: ports@1 { }; };

+ codec2codec { + compatible = "audio-graph-card2-codec2codec"; + + rate = <48000>; + ports { + c2c: port@0 { c2c_0_ep: endpoint { remote-endpoint = <&codec5_ep>; }; }; + port@1 { c2c_1_ep: endpoint { remote-endpoint = <&codec6_ep>; }; }; + }; + }; + test_cpu { /* * update compatible to indicate more detail behaviour @@ -118,6 +133,8 @@ ports { port@2 { codec2_ep: endpoint { remote-endpoint = <&mix_be0_ep>; }; }; port@3 { codec3_ep: endpoint { remote-endpoint = <&multi_10_ep>; }; }; port@4 { codec4_ep: endpoint { remote-endpoint = <&multi_11_ep>; }; }; + port@5 { codec5_ep: endpoint { remote-endpoint = <&c2c_0_ep>; }; }; + port@6 { codec6_ep: endpoint { remote-endpoint = <&c2c_1_ep>; }; }; }; }; };