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-rw-r--r--sound/soc/generic/Kconfig39
-rw-r--r--sound/soc/generic/Makefile14
-rw-r--r--sound/soc/generic/audio-graph-card.c656
-rw-r--r--sound/soc/generic/audio-graph-card2-custom-sample.c186
-rw-r--r--sound/soc/generic/audio-graph-card2-custom-sample.dtsi400
-rw-r--r--sound/soc/generic/audio-graph-card2.c1236
-rw-r--r--sound/soc/generic/simple-card-utils.c1138
-rw-r--r--sound/soc/generic/simple-card.c839
-rw-r--r--sound/soc/generic/test-component.c656
9 files changed, 5164 insertions, 0 deletions
diff --git a/sound/soc/generic/Kconfig b/sound/soc/generic/Kconfig
new file mode 100644
index 0000000000..b6df4e26bc
--- /dev/null
+++ b/sound/soc/generic/Kconfig
@@ -0,0 +1,39 @@
+# SPDX-License-Identifier: GPL-2.0-only
+config SND_SIMPLE_CARD_UTILS
+ tristate
+
+config SND_SIMPLE_CARD
+ tristate "ASoC Simple sound card support"
+ select SND_SIMPLE_CARD_UTILS
+ help
+ This option enables generic simple sound card support
+ It also support DPCM of multi CPU single Codec ststem.
+
+config SND_AUDIO_GRAPH_CARD
+ tristate "ASoC Audio Graph sound card support"
+ depends on OF
+ select SND_SIMPLE_CARD_UTILS
+ help
+ 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_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 card2 support
+ with OF-graph DT bindings.
+
+config SND_AUDIO_GRAPH_CARD2_CUSTOM_SAMPLE
+ tristate "ASoC Audio Graph Card2 base custom sample support"
+ depends on SND_AUDIO_GRAPH_CARD2
+ help
+ This option enables Audio Graph Card2 base custom sample
+
+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
new file mode 100644
index 0000000000..0848621565
--- /dev/null
+++ b/sound/soc/generic/Makefile
@@ -0,0 +1,14 @@
+# SPDX-License-Identifier: GPL-2.0
+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-audio-graph-card2-custom-sample-objs := audio-graph-card2-custom-sample.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-$(CONFIG_SND_AUDIO_GRAPH_CARD2_CUSTOM_SAMPLE) += snd-soc-audio-graph-card2-custom-sample.o
+obj-$(CONFIG_SND_TEST_COMPONENT) += snd-soc-test-component.o
diff --git a/sound/soc/generic/audio-graph-card.c b/sound/soc/generic/audio-graph-card.c
new file mode 100644
index 0000000000..844a2ef159
--- /dev/null
+++ b/sound/soc/generic/audio-graph-card.c
@@ -0,0 +1,656 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// ASoC audio graph sound card support
+//
+// Copyright (C) 2016 Renesas Solutions Corp.
+// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+//
+// based on ${LINUX}/sound/soc/generic/simple-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>
+
+#define DPCM_SELECTABLE 1
+
+static int graph_outdrv_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol,
+ int event)
+{
+ struct snd_soc_dapm_context *dapm = w->dapm;
+ struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(dapm->card);
+
+ switch (event) {
+ case SND_SOC_DAPM_POST_PMU:
+ gpiod_set_value_cansleep(priv->pa_gpio, 1);
+ break;
+ case SND_SOC_DAPM_PRE_PMD:
+ gpiod_set_value_cansleep(priv->pa_gpio, 0);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static const struct snd_soc_dapm_widget graph_dapm_widgets[] = {
+ SND_SOC_DAPM_OUT_DRV_E("Amplifier", SND_SOC_NOPM,
+ 0, 0, NULL, 0, graph_outdrv_event,
+ SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
+};
+
+static const struct snd_soc_ops graph_ops = {
+ .startup = asoc_simple_startup,
+ .shutdown = asoc_simple_shutdown,
+ .hw_params = asoc_simple_hw_params,
+};
+
+static bool soc_component_is_pcm(struct snd_soc_dai_link_component *dlc)
+{
+ struct snd_soc_dai *dai = snd_soc_find_dai_with_mutex(dlc);
+
+ if (dai && (dai->component->driver->pcm_construct ||
+ (dai->driver->ops && dai->driver->ops->pcm_new)))
+ return true;
+
+ return false;
+}
+
+static void graph_parse_convert(struct device *dev,
+ struct device_node *ep,
+ struct asoc_simple_data *adata)
+{
+ struct device_node *top = dev->of_node;
+ struct device_node *port = of_get_parent(ep);
+ struct device_node *ports = of_get_parent(port);
+ struct device_node *node = of_graph_get_port_parent(ep);
+
+ asoc_simple_parse_convert(top, NULL, adata);
+ if (of_node_name_eq(ports, "ports"))
+ asoc_simple_parse_convert(ports, NULL, adata);
+ asoc_simple_parse_convert(port, NULL, adata);
+ asoc_simple_parse_convert(ep, NULL, adata);
+
+ of_node_put(port);
+ of_node_put(ports);
+ of_node_put(node);
+}
+
+static void graph_parse_mclk_fs(struct device_node *top,
+ 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);
+
+ of_property_read_u32(top, "mclk-fs", &props->mclk_fs);
+ 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_parse_node(struct asoc_simple_priv *priv,
+ struct device_node *ep,
+ struct link_info *li,
+ int *cpu)
+{
+ struct device *dev = simple_priv_to_dev(priv);
+ struct device_node *top = dev->of_node;
+ 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, 0);
+ dai = simple_props_to_dai_cpu(dai_props, 0);
+ } else {
+ dlc = asoc_link_to_codec(dai_link, 0);
+ dai = simple_props_to_dai_codec(dai_props, 0);
+ }
+
+ graph_parse_mclk_fs(top, ep, dai_props);
+
+ ret = asoc_graph_parse_dai(dev, 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 int graph_link_init(struct asoc_simple_priv *priv,
+ struct device_node *cpu_ep,
+ struct device_node *codec_ep,
+ struct link_info *li,
+ char *name)
+{
+ struct device *dev = simple_priv_to_dev(priv);
+ struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link);
+ int ret;
+
+ ret = asoc_simple_parse_daifmt(dev, cpu_ep, codec_ep,
+ NULL, &dai_link->dai_fmt);
+ if (ret < 0)
+ return ret;
+
+ dai_link->init = asoc_simple_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);
+}
+
+static int graph_dai_link_of_dpcm(struct asoc_simple_priv *priv,
+ struct device_node *cpu_ep,
+ struct device_node *codec_ep,
+ struct link_info *li)
+{
+ 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 device_node *top = dev->of_node;
+ struct device_node *ep = li->cpu ? cpu_ep : codec_ep;
+ char dai_name[64];
+ int ret;
+
+ dev_dbg(dev, "link_of DPCM (%pOF)\n", ep);
+
+ if (li->cpu) {
+ struct snd_soc_card *card = simple_priv_to_card(priv);
+ struct snd_soc_dai_link_component *cpus = asoc_link_to_cpu(dai_link, 0);
+ struct snd_soc_dai_link_component *platforms = asoc_link_to_platform(dai_link, 0);
+ int is_single_links = 0;
+
+ /* Codec is dummy */
+
+ /* FE settings */
+ dai_link->dynamic = 1;
+ dai_link->dpcm_merged_format = 1;
+
+ ret = graph_parse_node(priv, cpu_ep, li, &is_single_links);
+ if (ret)
+ return ret;
+
+ snprintf(dai_name, sizeof(dai_name),
+ "fe.%pOFP.%s", cpus->of_node, cpus->dai_name);
+ /*
+ * In BE<->BE connections it is not required to create
+ * PCM devices at CPU end of the dai link and thus 'no_pcm'
+ * flag needs to be set. It is useful when there are many
+ * BE components and some of these have to be connected to
+ * form a valid audio path.
+ *
+ * For example: FE <-> BE1 <-> BE2 <-> ... <-> BEn where
+ * there are 'n' BE components in the path.
+ */
+ if (card->component_chaining && !soc_component_is_pcm(cpus)) {
+ dai_link->no_pcm = 1;
+ dai_link->be_hw_params_fixup = asoc_simple_be_hw_params_fixup;
+ }
+
+ asoc_simple_canonicalize_cpu(cpus, is_single_links);
+ asoc_simple_canonicalize_platform(platforms, cpus);
+ } else {
+ struct snd_soc_codec_conf *cconf = simple_props_to_codec_conf(dai_props, 0);
+ struct snd_soc_dai_link_component *codecs = asoc_link_to_codec(dai_link, 0);
+ struct device_node *port;
+ struct device_node *ports;
+
+ /* CPU is dummy */
+
+ /* BE settings */
+ dai_link->no_pcm = 1;
+ dai_link->be_hw_params_fixup = asoc_simple_be_hw_params_fixup;
+
+ ret = graph_parse_node(priv, codec_ep, li, NULL);
+ if (ret < 0)
+ return ret;
+
+ snprintf(dai_name, sizeof(dai_name),
+ "be.%pOFP.%s", codecs->of_node, codecs->dai_name);
+
+ /* check "prefix" from top node */
+ port = of_get_parent(ep);
+ ports = of_get_parent(port);
+ snd_soc_of_parse_node_prefix(top, cconf, codecs->of_node,
+ "prefix");
+ if (of_node_name_eq(ports, "ports"))
+ snd_soc_of_parse_node_prefix(ports, cconf, codecs->of_node, "prefix");
+ snd_soc_of_parse_node_prefix(port, cconf, codecs->of_node,
+ "prefix");
+
+ of_node_put(ports);
+ of_node_put(port);
+ }
+
+ graph_parse_convert(dev, ep, &dai_props->adata);
+
+ snd_soc_dai_link_set_capabilities(dai_link);
+
+ ret = graph_link_init(priv, cpu_ep, codec_ep, li, dai_name);
+
+ li->link++;
+
+ return ret;
+}
+
+static int graph_dai_link_of(struct asoc_simple_priv *priv,
+ struct device_node *cpu_ep,
+ struct device_node *codec_ep,
+ struct link_info *li)
+{
+ struct device *dev = simple_priv_to_dev(priv);
+ struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link);
+ 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);
+ struct snd_soc_dai_link_component *platforms = asoc_link_to_platform(dai_link, 0);
+ char dai_name[64];
+ int ret, is_single_links = 0;
+
+ dev_dbg(dev, "link_of (%pOF)\n", cpu_ep);
+
+ ret = graph_parse_node(priv, cpu_ep, li, &is_single_links);
+ if (ret < 0)
+ return ret;
+
+ ret = graph_parse_node(priv, codec_ep, li, NULL);
+ if (ret < 0)
+ return ret;
+
+ snprintf(dai_name, sizeof(dai_name),
+ "%s-%s", cpus->dai_name, codecs->dai_name);
+
+ asoc_simple_canonicalize_cpu(cpus, is_single_links);
+ asoc_simple_canonicalize_platform(platforms, cpus);
+
+ ret = graph_link_init(priv, cpu_ep, codec_ep, li, dai_name);
+ if (ret < 0)
+ return ret;
+
+ li->link++;
+
+ return 0;
+}
+
+static inline bool parse_as_dpcm_link(struct asoc_simple_priv *priv,
+ struct device_node *codec_port,
+ struct asoc_simple_data *adata)
+{
+ if (priv->force_dpcm)
+ return true;
+
+ if (!priv->dpcm_selectable)
+ return false;
+
+ /*
+ * It is DPCM
+ * if Codec port has many endpoints,
+ * or has convert-xxx property
+ */
+ if ((of_get_child_count(codec_port) > 1) ||
+ asoc_simple_is_convert_required(adata))
+ return true;
+
+ return false;
+}
+
+static int __graph_for_each_link(struct asoc_simple_priv *priv,
+ struct link_info *li,
+ int (*func_noml)(struct asoc_simple_priv *priv,
+ struct device_node *cpu_ep,
+ struct device_node *codec_ep,
+ struct link_info *li),
+ int (*func_dpcm)(struct asoc_simple_priv *priv,
+ struct device_node *cpu_ep,
+ struct device_node *codec_ep,
+ 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 *cpu_port;
+ struct device_node *cpu_ep;
+ struct device_node *codec_ep;
+ struct device_node *codec_port;
+ struct device_node *codec_port_old = NULL;
+ struct asoc_simple_data adata;
+ int rc, ret = 0;
+
+ /* loop for all listed CPU port */
+ of_for_each_phandle(&it, rc, node, "dais", NULL, 0) {
+ cpu_port = it.node;
+ cpu_ep = NULL;
+
+ /* loop for all CPU endpoint */
+ while (1) {
+ cpu_ep = of_get_next_child(cpu_port, cpu_ep);
+ if (!cpu_ep)
+ break;
+
+ /* get codec */
+ codec_ep = of_graph_get_remote_endpoint(cpu_ep);
+ codec_port = of_get_parent(codec_ep);
+
+ /* get convert-xxx property */
+ memset(&adata, 0, sizeof(adata));
+ graph_parse_convert(dev, codec_ep, &adata);
+ graph_parse_convert(dev, cpu_ep, &adata);
+
+ /* check if link requires DPCM parsing */
+ if (parse_as_dpcm_link(priv, codec_port, &adata)) {
+ /*
+ * Codec endpoint can be NULL for pluggable audio HW.
+ * Platform DT can populate the Codec endpoint depending on the
+ * plugged HW.
+ */
+ /* Do it all CPU endpoint, and 1st Codec endpoint */
+ if (li->cpu ||
+ ((codec_port_old != codec_port) && codec_ep))
+ ret = func_dpcm(priv, cpu_ep, codec_ep, li);
+ /* else normal sound */
+ } else {
+ if (li->cpu)
+ ret = func_noml(priv, cpu_ep, codec_ep, li);
+ }
+
+ of_node_put(codec_ep);
+ of_node_put(codec_port);
+
+ if (ret < 0) {
+ of_node_put(cpu_ep);
+ return ret;
+ }
+
+ codec_port_old = codec_port;
+ }
+ }
+
+ return 0;
+}
+
+static int graph_for_each_link(struct asoc_simple_priv *priv,
+ struct link_info *li,
+ int (*func_noml)(struct asoc_simple_priv *priv,
+ struct device_node *cpu_ep,
+ struct device_node *codec_ep,
+ struct link_info *li),
+ int (*func_dpcm)(struct asoc_simple_priv *priv,
+ struct device_node *cpu_ep,
+ struct device_node *codec_ep,
+ struct link_info *li))
+{
+ int ret;
+ /*
+ * Detect all CPU first, and Detect all Codec 2nd.
+ *
+ * In Normal sound case, all DAIs are detected
+ * as "CPU-Codec".
+ *
+ * In DPCM sound case,
+ * all CPUs are detected as "CPU-dummy", and
+ * all Codecs are detected as "dummy-Codec".
+ * To avoid random sub-device numbering,
+ * detect "dummy-Codec" in last;
+ */
+ for (li->cpu = 1; li->cpu >= 0; li->cpu--) {
+ ret = __graph_for_each_link(priv, li, func_noml, func_dpcm);
+ if (ret < 0)
+ break;
+ }
+
+ return ret;
+}
+
+static int graph_count_noml(struct asoc_simple_priv *priv,
+ struct device_node *cpu_ep,
+ struct device_node *codec_ep,
+ struct link_info *li)
+{
+ struct device *dev = simple_priv_to_dev(priv);
+
+ if (li->link >= SNDRV_MAX_LINKS) {
+ dev_err(dev, "too many links\n");
+ return -EINVAL;
+ }
+
+ /*
+ * DON'T REMOVE platforms
+ * see
+ * simple-card.c :: simple_count_noml()
+ */
+ li->num[li->link].cpus = 1;
+ li->num[li->link].platforms = 1;
+
+ li->num[li->link].codecs = 1;
+
+ li->link += 1; /* 1xCPU-Codec */
+
+ dev_dbg(dev, "Count As Normal\n");
+
+ return 0;
+}
+
+static int graph_count_dpcm(struct asoc_simple_priv *priv,
+ struct device_node *cpu_ep,
+ struct device_node *codec_ep,
+ struct link_info *li)
+{
+ struct device *dev = simple_priv_to_dev(priv);
+
+ if (li->link >= SNDRV_MAX_LINKS) {
+ dev_err(dev, "too many links\n");
+ return -EINVAL;
+ }
+
+ if (li->cpu) {
+ /*
+ * DON'T REMOVE platforms
+ * see
+ * simple-card.c :: simple_count_noml()
+ */
+ li->num[li->link].cpus = 1;
+ li->num[li->link].platforms = 1;
+
+ li->link++; /* 1xCPU-dummy */
+ } else {
+ li->num[li->link].codecs = 1;
+
+ li->link++; /* 1xdummy-Codec */
+ }
+
+ dev_dbg(dev, "Count As DPCM\n");
+
+ return 0;
+}
+
+static int graph_get_dais_count(struct asoc_simple_priv *priv,
+ struct link_info *li)
+{
+ /*
+ * link_num : number of links.
+ * CPU-Codec / CPU-dummy / dummy-Codec
+ * dais_num : number of DAIs
+ * ccnf_num : number of codec_conf
+ * same number for "dummy-Codec"
+ *
+ * ex1)
+ * CPU0 --- Codec0 link : 5
+ * CPU1 --- Codec1 dais : 7
+ * CPU2 -/ ccnf : 1
+ * CPU3 --- Codec2
+ *
+ * => 5 links = 2xCPU-Codec + 2xCPU-dummy + 1xdummy-Codec
+ * => 7 DAIs = 4xCPU + 3xCodec
+ * => 1 ccnf = 1xdummy-Codec
+ *
+ * ex2)
+ * CPU0 --- Codec0 link : 5
+ * CPU1 --- Codec1 dais : 6
+ * CPU2 -/ ccnf : 1
+ * CPU3 -/
+ *
+ * => 5 links = 1xCPU-Codec + 3xCPU-dummy + 1xdummy-Codec
+ * => 6 DAIs = 4xCPU + 2xCodec
+ * => 1 ccnf = 1xdummy-Codec
+ *
+ * ex3)
+ * CPU0 --- Codec0 link : 6
+ * CPU1 -/ dais : 6
+ * CPU2 --- Codec1 ccnf : 2
+ * CPU3 -/
+ *
+ * => 6 links = 0xCPU-Codec + 4xCPU-dummy + 2xdummy-Codec
+ * => 6 DAIs = 4xCPU + 2xCodec
+ * => 2 ccnf = 2xdummy-Codec
+ *
+ * ex4)
+ * CPU0 --- Codec0 (convert-rate) link : 3
+ * CPU1 --- Codec1 dais : 4
+ * ccnf : 1
+ *
+ * => 3 links = 1xCPU-Codec + 1xCPU-dummy + 1xdummy-Codec
+ * => 4 DAIs = 2xCPU + 2xCodec
+ * => 1 ccnf = 1xdummy-Codec
+ */
+ return graph_for_each_link(priv, li,
+ graph_count_noml,
+ graph_count_dpcm);
+}
+
+int audio_graph_parse_of(struct asoc_simple_priv *priv, struct device *dev)
+{
+ struct snd_soc_card *card = simple_priv_to_card(priv);
+ struct link_info *li;
+ int ret;
+
+ li = devm_kzalloc(dev, sizeof(*li), GFP_KERNEL);
+ if (!li)
+ return -ENOMEM;
+
+ card->owner = THIS_MODULE;
+ card->dev = dev;
+
+ ret = graph_get_dais_count(priv, li);
+ if (ret < 0)
+ return ret;
+
+ if (!li->link)
+ return -EINVAL;
+
+ ret = asoc_simple_init_priv(priv, li);
+ if (ret < 0)
+ return ret;
+
+ 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);
+ return ret;
+ }
+
+ ret = asoc_simple_parse_widgets(card, NULL);
+ if (ret < 0)
+ return ret;
+
+ ret = asoc_simple_parse_routing(card, NULL);
+ if (ret < 0)
+ return ret;
+
+ memset(li, 0, sizeof(*li));
+ ret = graph_for_each_link(priv, li,
+ graph_dai_link_of,
+ graph_dai_link_of_dpcm);
+ 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);
+
+ asoc_simple_debug_info(priv);
+
+ ret = devm_snd_soc_register_card(dev, card);
+ if (ret < 0)
+ goto err;
+
+ devm_kfree(dev, li);
+ return 0;
+
+err:
+ asoc_simple_clean_reference(card);
+
+ return dev_err_probe(dev, ret, "parse error\n");
+}
+EXPORT_SYMBOL_GPL(audio_graph_parse_of);
+
+static int graph_probe(struct platform_device *pdev)
+{
+ struct asoc_simple_priv *priv;
+ struct device *dev = &pdev->dev;
+ struct snd_soc_card *card;
+
+ /* Allocate the private data and the DAI link array */
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ card = simple_priv_to_card(priv);
+ card->dapm_widgets = graph_dapm_widgets;
+ card->num_dapm_widgets = ARRAY_SIZE(graph_dapm_widgets);
+ card->probe = asoc_graph_card_probe;
+
+ if (of_device_get_match_data(dev))
+ priv->dpcm_selectable = 1;
+
+ return audio_graph_parse_of(priv, dev);
+}
+
+static const struct of_device_id graph_of_match[] = {
+ { .compatible = "audio-graph-card", },
+ { .compatible = "audio-graph-scu-card",
+ .data = (void *)DPCM_SELECTABLE },
+ {},
+};
+MODULE_DEVICE_TABLE(of, graph_of_match);
+
+static struct platform_driver graph_card = {
+ .driver = {
+ .name = "asoc-audio-graph-card",
+ .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-card");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("ASoC Audio Graph Sound Card");
+MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
diff --git a/sound/soc/generic/audio-graph-card2-custom-sample.c b/sound/soc/generic/audio-graph-card2-custom-sample.c
new file mode 100644
index 0000000000..a3142be932
--- /dev/null
+++ b/sound/soc/generic/audio-graph-card2-custom-sample.c
@@ -0,0 +1,186 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// audio-graph-card2-custom-sample.c
+//
+// Copyright (C) 2020 Renesas Electronics Corp.
+// 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__);
+
+ /* overwrite .probe sample */
+ card = simple_priv_to_card(priv);
+ card->probe = custom_card_probe;
+
+ return 0;
+}
+
+static int custom_normal(struct asoc_simple_priv *priv,
+ struct device_node *lnk,
+ struct link_info *li)
+{
+ struct device *dev = simple_priv_to_dev(priv);
+
+ /*
+ * You can custom Normal parsing
+ * before/affter audio_graph2_link_normal()
+ */
+ dev_info(dev, "hook : %s\n", __func__);
+
+ return audio_graph2_link_normal(priv, lnk, li);
+}
+
+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 DPCM parsing
+ * before/affter audio_graph2_link_dpcm()
+ */
+ 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 Codec2Codec parsing
+ * before/affter audio_graph2_link_c2c()
+ */
+ 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 graph2_custom_hooks custom_hooks = {
+ .hook_pre = custom_hook_pre,
+ .hook_post = custom_hook_post,
+ .custom_normal = custom_normal,
+ .custom_dpcm = custom_dpcm,
+ .custom_c2c = custom_c2c,
+};
+
+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 */
+
+ /* "audio-graph-card2-custom-sample" is too long */
+ simple_priv->snd_card.name = "card2-custom";
+
+ /* 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 = "audio-graph-card2-custom-sample", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, custom_of_match);
+
+static struct platform_driver custom_card = {
+ .driver = {
+ .name = "audio-graph-card2-custom-sample",
+ .of_match_table = custom_of_match,
+ },
+ .probe = custom_probe,
+ .remove = asoc_simple_remove,
+};
+module_platform_driver(custom_card);
+
+MODULE_ALIAS("platform:asoc-audio-graph-card2-custom-sample");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("ASoC Audio Graph Card2 Custom Sample");
+MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
diff --git a/sound/soc/generic/audio-graph-card2-custom-sample.dtsi b/sound/soc/generic/audio-graph-card2-custom-sample.dtsi
new file mode 100644
index 0000000000..8acaa2ddb3
--- /dev/null
+++ b/sound/soc/generic/audio-graph-card2-custom-sample.dtsi
@@ -0,0 +1,400 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * audio-graph-card2-custom-sample.dtsi
+ *
+ * Copyright (C) 2020 Renesas Electronics Corp.
+ * Copyright (C) 2020 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+ *
+ * This sample indicates how to use audio-graph-card2 and its
+ * custom driver. "audio-graph-card2-custom-sample" is the custome driver
+ * which is using audio-graph-card2.
+ *
+ * You can easily use this sample by adding below line on your DT file,
+ * and add new CONFIG to your .config.
+ *
+ * #include "../../../../../sound/soc/generic/audio-graph-card2-custom-sample.dtsi"
+ *
+ * CONFIG_SND_AUDIO_GRAPH_CARD2
+ * CONFIG_SND_AUDIO_GRAPH_CARD2_CUSTOM_SAMPLE
+ * CONFIG_SND_TEST_COMPONENT
+ *
+ *
+ * You can indicate more detail each device behavior as debug if you modify
+ * "compatible" on each test-component. see below
+ *
+ * test_cpu {
+ * - compatible = "test-cpu";
+ * + compatible = "test-cpu-verbose";
+ * ...
+ * };
+ *
+ * test_codec {
+ * - compatible = "test-codec";
+ * + compatible = "test-codec-verbose";
+ * ...
+ * };
+ *
+ *
+ * Below sample doesn't use "format" property,
+ * because test-component driver (test-cpu/test-codec) is supporting
+ * snd_soc_dai_ops :: .auto_selectable_formats.
+ * see
+ * snd_soc_runtime_get_dai_fmt()
+ * linux/sound/soc/generic/test-component.c :: test_dai_formats
+ */
+/ {
+ /*
+ * @ : used at links
+ *
+ * [Normal]
+ * cpu0 <-@-----------------> codec0
+ *
+ * [Semi-Multi]
+ *
+ * CPU:Codec = 1:N
+ *
+ * +-+
+ * cpu7 <-@------->| |-> codec12
+ * | |-> codec13
+ * +-+
+ *
+ * [Multi-CPU/Codec]
+ * +-+ +-+
+ * cpu1 <--| |<-@--------->| |-> codec1
+ * cpu2 <--| | | |-> codec2
+ * +-+ +-+
+ *
+ * [DPCM]
+ *
+ * CPU3/CPU4 are converting rate to 44100
+ *
+ * FE BE
+ * ****
+ * cpu3 <-@--* *--@-> codec3
+ * cpu4 <-@--* * (44.1kHz)
+ * ****
+ *
+ * [DPCM-Multi]
+ *
+ * --NOTE--
+ * Multi-FE is not supported by ASoC.
+ *
+ * FE BE
+ * **** +-+
+ * cpu5 <-@--* *--@-> | | -> codec4
+ * cpu6 <-@--* * | | -> codec5
+ * **** +-+
+ *
+ * [Codec2Codec]
+ * +-@-> codec6
+ * |
+ * +---> codec7
+ *
+ * [Codec2Codec-Multi]
+ *
+ * --NOTE--
+ * Multi connect N:M is not supported by ASoC.
+ *
+ * +-+
+ * +-@->| |-> codec8
+ * | | |-> codec9
+ * | +-+
+ * | +-+
+ * +--->| |-> codec10
+ * | |-> codec11
+ * +-+
+ */
+ audio-graph-card2-custom-sample {
+ /*
+ * You can use audio-graph-card2 directly by using
+ *
+ * compatible = "audio-graph-card2";
+ */
+ compatible = "audio-graph-card2-custom-sample";
+
+ /* for [DPCM] */
+ /* BE FE */
+ routing = "TC DAI3 Playback", "DAI3 Playback",
+ "TC DAI3 Playback", "DAI4 Playback",
+ "DAI3 Capture", "TC DAI3 Capture",
+ "DAI4 Capture", "TC DAI3 Capture",
+ /* for [DPCM-Multi] */
+ /* BE FE */
+ "TC DAI4 Playback", "DAI5 Playback",
+ "TC DAI5 Playback", "DAI5 Playback",
+ "TC DAI4 Playback", "DAI6 Playback",
+ "TC DAI5 Playback", "DAI6 Playback",
+ "DAI5 Capture", "TC DAI4 Capture",
+ "DAI5 Capture", "TC DAI5 Capture",
+ "DAI6 Capture", "TC DAI4 Capture",
+ "DAI6 Capture", "TC DAI5 Capture",
+ /* for [Codec2Codec] */
+ "TC OUT", "TC DAI7 Playback",
+ "TC DAI6 Capture", "TC IN",
+ /* for [Codec2Codec-Multi] */
+ "TC OUT", "TC DAI10 Playback",
+ "TC DAI8 Capture", "TC IN",
+ "TC OUT", "TC DAI11 Playback",
+ "TC DAI9 Capture", "TC IN";
+
+ links = <
+ /*
+ * [Normal]: cpu side only
+ * cpu0/codec0
+ */
+ &cpu0
+
+ /* [Semi-Multi] */
+ &sm0
+
+ /*
+ * [Multi-CPU/Codec]: cpu side only
+ * cpu1/cpu2/codec1/codec2
+ */
+ &mcpu0
+
+ /*
+ * [DPCM]: both FE / BE
+ * cpu3/cpu4/codec3
+ */
+ &fe00 &fe01 &be0
+
+ /*
+ * [DPCM-Multi]: both FE / BE
+ * cpu5/cpu6/codec4/codec5
+ */
+ &fe10 &fe11 &be1
+
+ /*
+ * [Codec2Codec]: cpu side only
+ * codec6/codec7
+ */
+ &c2c
+
+ /*
+ * [Codec2Codec-Multi]: cpu side only
+ * codec8/codec9/codec10/codec11
+ */
+ &c2c_m
+ >;
+
+ multi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ports@0 {
+ reg = <0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ /* [Multi-CPU] */
+ mcpu0: port@0 { reg = <0>; mcpu0_ep: endpoint { remote-endpoint = <&mcodec0_ep>; }; };
+ port@1 { reg = <1>; mcpu1_ep: endpoint { remote-endpoint = <&cpu1_ep>; }; };
+ port@2 { reg = <2>; mcpu2_ep: endpoint { remote-endpoint = <&cpu2_ep>; }; };
+ };
+
+ /* [Multi-Codec] */
+ ports@1 {
+ reg = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ port@0 { reg = <0>; mcodec0_ep: endpoint { remote-endpoint = <&mcpu0_ep>; }; };
+ port@1 { reg = <1>; mcodec1_ep: endpoint { remote-endpoint = <&codec1_ep>; }; };
+ port@2 { reg = <2>; mcodec2_ep: endpoint { remote-endpoint = <&codec2_ep>; }; };
+ };
+
+ /* [DPCM-Multi]::BE */
+ ports@2 {
+ reg = <2>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ port@0 { reg = <0>; mbe_ep: endpoint { remote-endpoint = <&be10_ep>; }; };
+ port@1 { reg = <1>; mbe1_ep: endpoint { remote-endpoint = <&codec4_ep>; }; };
+ port@2 { reg = <2>; mbe2_ep: endpoint { remote-endpoint = <&codec5_ep>; }; };
+ };
+
+ /* [Codec2Codec-Multi]::CPU */
+ ports@3 {
+ reg = <3>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ port@0 { reg = <0>; mc2c0_ep: endpoint { remote-endpoint = <&c2cmf_ep>; }; };
+ port@1 { reg = <1>; mc2c00_ep: endpoint { remote-endpoint = <&codec8_ep>; }; };
+ port@2 { reg = <2>; mc2c01_ep: endpoint { remote-endpoint = <&codec9_ep>; }; };
+ };
+
+ /* [Codec2Codec-Multi]::Codec */
+ ports@4 {
+ reg = <4>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ port@0 { reg = <0>; mc2c1_ep: endpoint { remote-endpoint = <&c2cmb_ep>; }; };
+ port@1 { reg = <1>; mc2c10_ep: endpoint { remote-endpoint = <&codec10_ep>; }; };
+ port@2 { reg = <2>; mc2c11_ep: endpoint { remote-endpoint = <&codec11_ep>; }; };
+ };
+
+ /* [Semi-Multi] */
+ ports@5 {
+ reg = <5>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ port@0 { reg = <0>; smcodec0_ep: endpoint { remote-endpoint = <&cpu7_ep>; }; };
+ port@1 { reg = <1>; smcodec1_ep: endpoint { remote-endpoint = <&codec12_ep>; }; };
+ port@2 { reg = <2>; smcodec2_ep: endpoint { remote-endpoint = <&codec13_ep>; }; };
+ };
+ };
+
+ dpcm {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ports@0 {
+ reg = <0>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+ /* [DPCM]::FE */
+ fe00: port@0 { reg = <0>; fe00_ep: endpoint { remote-endpoint = <&cpu3_ep>; }; };
+ fe01: port@1 { reg = <1>; fe01_ep: endpoint { remote-endpoint = <&cpu4_ep>; }; };
+
+ /* [DPCM-Multi]::FE */
+ fe10: port@2 { reg = <2>; fe10_ep: endpoint { remote-endpoint = <&cpu5_ep>; }; };
+ fe11: port@3 { reg = <3>; fe11_ep: endpoint { remote-endpoint = <&cpu6_ep>; }; };
+ };
+
+ ports@1 {
+ reg = <1>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+ /* [DPCM]::BE */
+ be0: port@0 { reg = <0>; be00_ep: endpoint { remote-endpoint = <&codec3_ep>; }; };
+
+ /* [DPCM-Multi]::BE */
+ be1: port@1 { reg = <1>; be10_ep: endpoint { remote-endpoint = <&mbe_ep>; }; };
+ };
+ };
+
+ codec2codec {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ /* [Codec2Codec] */
+ ports@0 {
+ reg = <0>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* use default settings */
+ c2c: port@0 { reg = <0>; c2cf_ep: endpoint { remote-endpoint = <&codec6_ep>; }; };
+ port@1 { reg = <1>; c2cb_ep: endpoint { remote-endpoint = <&codec7_ep>; }; };
+ };
+
+ /* [Codec2Codec-Multi] */
+ ports@1 {
+ reg = <1>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* use original settings */
+ rate = <48000>;
+ c2c_m: port@0 { reg = <0>; c2cmf_ep: endpoint { remote-endpoint = <&mc2c0_ep>; }; };
+ port@1 { reg = <1>; c2cmb_ep: endpoint { remote-endpoint = <&mc2c1_ep>; }; };
+ };
+ };
+ };
+
+ test_cpu {
+ /*
+ * update compatible to indicate more detail behaviour
+ * if you want. see test-compatible for more detail.
+ *
+ * ex)
+ * - compatible = "test-cpu";
+ * + compatible = "test-cpu-verbose";
+ */
+ compatible = "test-cpu";
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ bitclock-master;
+ frame-master;
+ /* [Normal] */
+ cpu0: port@0 { reg = <0>; cpu0_ep: endpoint { remote-endpoint = <&codec0_ep>; }; };
+
+ /* [Multi-CPU] */
+ port@1 { reg = <1>; cpu1_ep: endpoint { remote-endpoint = <&mcpu1_ep>; }; };
+ port@2 { reg = <2>; cpu2_ep: endpoint { remote-endpoint = <&mcpu2_ep>; }; };
+
+ /* [DPCM]::FE */
+ port@3 { reg = <3>; cpu3_ep: endpoint { remote-endpoint = <&fe00_ep>; }; };
+ port@4 { reg = <4>; cpu4_ep: endpoint { remote-endpoint = <&fe01_ep>; }; };
+
+ /* [DPCM-Multi]::FE */
+ port@5 { reg = <5>; cpu5_ep: endpoint { remote-endpoint = <&fe10_ep>; }; };
+ port@6 { reg = <6>; cpu6_ep: endpoint { remote-endpoint = <&fe11_ep>; }; };
+
+ /* [Semi-Multi] */
+ sm0: port@7 { reg = <7>; cpu7_ep: endpoint { remote-endpoint = <&smcodec0_ep>; }; };
+ };
+ };
+
+ test_codec {
+ /*
+ * update compatible to indicate more detail behaviour
+ * if you want. see test-compatible for more detail.
+ *
+ * ex)
+ * - compatible = "test-codec";
+ * + compatible = "test-codec-verbose";
+ */
+ compatible = "test-codec";
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /*
+ * prefix can be added to *component*,
+ * see audio-graph-card2::routing
+ */
+ prefix = "TC";
+
+ /* [Normal] */
+ port@0 { reg = <0>; codec0_ep: endpoint { remote-endpoint = <&cpu0_ep>; }; };
+
+ /* [Multi-Codec] */
+ port@1 { reg = <1>; codec1_ep: endpoint { remote-endpoint = <&mcodec1_ep>; }; };
+ port@2 { reg = <2>; codec2_ep: endpoint { remote-endpoint = <&mcodec2_ep>; }; };
+
+ /* [DPCM]::BE */
+ port@3 {
+ convert-rate = <44100>;
+ reg = <3>; codec3_ep: endpoint { remote-endpoint = <&be00_ep>; };
+ };
+
+ /* [DPCM-Multi]::BE */
+ port@4 { reg = <4>; codec4_ep: endpoint { remote-endpoint = <&mbe1_ep>; }; };
+ port@5 { reg = <5>; codec5_ep: endpoint { remote-endpoint = <&mbe2_ep>; }; };
+
+ /* [Codec2Codec] */
+ port@6 { bitclock-master;
+ frame-master;
+ reg = <6>; codec6_ep: endpoint { remote-endpoint = <&c2cf_ep>; }; };
+ port@7 { reg = <7>; codec7_ep: endpoint { remote-endpoint = <&c2cb_ep>; }; };
+
+ /* [Codec2Codec-Multi] */
+ port@8 { bitclock-master;
+ frame-master;
+ reg = <8>; codec8_ep: endpoint { remote-endpoint = <&mc2c00_ep>; }; };
+ port@9 { reg = <9>; codec9_ep: endpoint { remote-endpoint = <&mc2c01_ep>; }; };
+ port@a { reg = <10>; codec10_ep: endpoint { remote-endpoint = <&mc2c10_ep>; }; };
+ port@b { reg = <11>; codec11_ep: endpoint { remote-endpoint = <&mc2c11_ep>; }; };
+
+ /* [Semi-Multi] */
+ port@c { reg = <12>; codec12_ep: endpoint { remote-endpoint = <&smcodec1_ep>; }; };
+ port@d { reg = <13>; codec13_ep: endpoint { remote-endpoint = <&smcodec2_ep>; }; };
+
+ };
+ };
+};
diff --git a/sound/soc/generic/audio-graph-card2.c b/sound/soc/generic/audio-graph-card2.c
new file mode 100644
index 0000000000..b1c675c6b6
--- /dev/null
+++ b/sound/soc/generic/audio-graph-card2.c
@@ -0,0 +1,1236 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// ASoC Audio Graph Card2 support
+//
+// Copyright (C) 2020 Renesas Electronics Corp.
+// Copyright (C) 2020 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
+
+ If there was no settings, *Codec* will be
+ bitclock/frame provider as default.
+ see
+ graph_parse_daifmt().
+
+ "format" property is no longer needed on DT if both CPU/Codec drivers are
+ supporting snd_soc_dai_ops :: .auto_selectable_formats.
+ see
+ snd_soc_runtime_get_dai_fmt()
+
+ sample driver
+ linux/sound/soc/sh/rcar/core.c
+ linux/sound/soc/codecs/ak4613.c
+ linux/sound/soc/codecs/pcm3168a.c
+ linux/sound/soc/soc-utils.c
+ linux/sound/soc/generic/test-component.c
+
+ ************************************
+ 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>; }; };
+ };
+
+ ************************************
+ Multi-CPU/Codec
+ ************************************
+
+It has connection part (= X) and list part (= y).
+links indicates connection part of CPU side (= A).
+
+ +-+ (A) +-+
+ CPU1 --(y) | | <-(X)--(X)-> | | (y)-- Codec1
+ CPU2 --(y) | | | | (y)-- Codec2
+ +-+ +-+
+
+ sound {
+ compatible = "audio-graph-card2";
+
+(A) links = <&mcpu>;
+
+ multi {
+ ports@0 {
+(X) (A) mcpu: port@0 { mcpu0_ep: endpoint { remote-endpoint = <&mcodec0_ep>; }; };
+(y) port@1 { mcpu1_ep: endpoint { remote-endpoint = <&cpu1_ep>; }; };
+(y) port@2 { mcpu2_ep: endpoint { remote-endpoint = <&cpu2_ep>; }; };
+ };
+ ports@1 {
+(X) port@0 { mcodec0_ep: endpoint { remote-endpoint = <&mcpu0_ep>; }; };
+(y) port@1 { mcodec1_ep: endpoint { remote-endpoint = <&codec1_ep>; }; };
+(y) port@2 { 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>; }; };
+ };
+ };
+
+ ************************************
+ DPCM
+ ************************************
+
+ DSP
+ ************
+ PCM0 <--> * fe0 be0 * <--> DAI0: Codec Headset
+ PCM1 <--> * fe1 be1 * <--> DAI1: Codec Speakers
+ PCM2 <--> * fe2 be2 * <--> DAI2: MODEM
+ PCM3 <--> * fe3 be3 * <--> DAI3: BT
+ * be4 * <--> DAI4: DMIC
+ * be5 * <--> DAI5: FM
+ ************
+
+ sound {
+ compatible = "audio-graph-card2";
+
+ // indicate routing
+ routing = "xxx Playback", "xxx Playback",
+ "xxx Playback", "xxx Playback",
+ "xxx Playback", "xxx Playback";
+
+ // indicate all Front-End, Back-End
+ links = <&fe0, &fe1, ...,
+ &be0, &be1, ...>;
+
+ dpcm {
+ // Front-End
+ ports@0 {
+ fe0: port@0 { fe0_ep: endpoint { remote-endpoint = <&pcm0_ep>; }; };
+ fe1: port@1 { fe1_ep: endpoint { remote-endpoint = <&pcm1_ep>; }; };
+ ...
+ };
+ // Back-End
+ ports@1 {
+ be0: port@0 { be0_ep: endpoint { remote-endpoint = <&dai0_ep>; }; };
+ be1: port@1 { be1_ep: endpoint { remote-endpoint = <&dai1_ep>; }; };
+ ...
+ };
+ };
+ };
+
+ CPU {
+ ports {
+ bitclock-master;
+ frame-master;
+ port@0 { pcm0_ep: endpoint { remote-endpoint = <&fe0_ep>; }; };
+ port@1 { pcm1_ep: endpoint { remote-endpoint = <&fe1_ep>; }; };
+ ...
+ };
+ };
+
+ Codec {
+ ports {
+ port@0 { dai0_ep: endpoint { remote-endpoint = <&be0_ep>; }; };
+ port@1 { dai1_ep: endpoint { remote-endpoint = <&be1_ep>; }; };
+ ...
+ };
+ };
+
+ ************************************
+ Codec to Codec
+ ************************************
+
+ +--+
+ | |<-- Codec0 <- IN
+ | |--> Codec1 -> OUT
+ +--+
+
+ sound {
+ compatible = "audio-graph-card2";
+
+ routing = "OUT" ,"DAI1 Playback",
+ "DAI0 Capture", "IN";
+
+ links = <&c2c>;
+
+ codec2codec {
+ ports {
+ rate = <48000>;
+ c2c: port@0 { c2cf_ep: endpoint { remote-endpoint = <&codec0_ep>; }; };
+ port@1 { c2cb_ep: endpoint { remote-endpoint = <&codec1_ep>; }; };
+ };
+ };
+
+ Codec {
+ ports {
+ port@0 {
+ bitclock-master;
+ frame-master;
+ codec0_ep: endpoint { remote-endpoint = <&c2cf_ep>; }; };
+ port@1 { codec1_ep: endpoint { remote-endpoint = <&c2cb_ep>; }; };
+ };
+ };
+
+*/
+
+enum graph_type {
+ GRAPH_NORMAL,
+ GRAPH_DPCM,
+ GRAPH_C2C,
+
+ GRAPH_MULTI, /* don't use ! Use this only in __graph_get_type() */
+};
+
+#define GRAPH_NODENAME_MULTI "multi"
+#define GRAPH_NODENAME_DPCM "dpcm"
+#define GRAPH_NODENAME_C2C "codec2codec"
+
+#define port_to_endpoint(port) of_get_child_by_name(port, "endpoint")
+
+static enum graph_type __graph_get_type(struct device_node *lnk)
+{
+ struct device_node *np, *parent_np;
+ enum graph_type ret;
+
+ /*
+ * target {
+ * ports {
+ * => lnk: port@0 { ... };
+ * port@1 { ... };
+ * };
+ * };
+ */
+ np = of_get_parent(lnk);
+ if (of_node_name_eq(np, "ports")) {
+ parent_np = of_get_parent(np);
+ of_node_put(np);
+ np = parent_np;
+ }
+
+ if (of_node_name_eq(np, GRAPH_NODENAME_MULTI)) {
+ ret = GRAPH_MULTI;
+ goto out_put;
+ }
+
+ if (of_node_name_eq(np, GRAPH_NODENAME_DPCM)) {
+ ret = GRAPH_DPCM;
+ goto out_put;
+ }
+
+ if (of_node_name_eq(np, GRAPH_NODENAME_C2C)) {
+ ret = GRAPH_C2C;
+ goto out_put;
+ }
+
+ ret = GRAPH_NORMAL;
+
+out_put:
+ of_node_put(np);
+ return ret;
+
+}
+
+static enum graph_type graph_get_type(struct asoc_simple_priv *priv,
+ struct device_node *lnk)
+{
+ enum graph_type type = __graph_get_type(lnk);
+
+ /* GRAPH_MULTI here means GRAPH_NORMAL */
+ if (type == GRAPH_MULTI)
+ type = GRAPH_NORMAL;
+
+#ifdef DEBUG
+ {
+ struct device *dev = simple_priv_to_dev(priv);
+ const char *str = "Normal";
+
+ switch (type) {
+ case GRAPH_DPCM:
+ if (asoc_graph_is_ports0(lnk))
+ str = "DPCM Front-End";
+ else
+ str = "DPCM Back-End";
+ break;
+ case GRAPH_C2C:
+ str = "Codec2Codec";
+ break;
+ default:
+ break;
+ }
+
+ dev_dbg(dev, "%pOF (%s)", lnk, str);
+ }
+#endif
+ return type;
+}
+
+static int graph_lnk_is_multi(struct device_node *lnk)
+{
+ return __graph_get_type(lnk) == GRAPH_MULTI;
+}
+
+static struct device_node *graph_get_next_multi_ep(struct device_node **port)
+{
+ struct device_node *ports = of_get_parent(*port);
+ struct device_node *ep = NULL;
+ struct device_node *rep = NULL;
+
+ /*
+ * multi {
+ * ports {
+ * => lnk: port@0 { ... };
+ * port@1 { ep { ... = rep0 } };
+ * port@2 { ep { ... = rep1 } };
+ * ...
+ * };
+ * };
+ *
+ * xxx {
+ * port@0 { rep0 };
+ * port@1 { rep1 };
+ * };
+ */
+ do {
+ *port = of_get_next_child(ports, *port);
+ if (!*port)
+ break;
+ } while (!of_node_name_eq(*port, "port"));
+
+ if (*port) {
+ ep = port_to_endpoint(*port);
+ rep = of_graph_get_remote_endpoint(ep);
+ }
+
+ of_node_put(ep);
+ of_node_put(ports);
+
+ return rep;
+}
+
+static const struct snd_soc_ops graph_ops = {
+ .startup = asoc_simple_startup,
+ .shutdown = asoc_simple_shutdown,
+ .hw_params = asoc_simple_hw_params,
+};
+
+static void graph_parse_convert(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);
+ struct asoc_simple_data *adata = &props->adata;
+
+ if (of_node_name_eq(ports, "ports"))
+ asoc_simple_parse_convert(ports, NULL, adata);
+ asoc_simple_parse_convert(port, NULL, adata);
+ asoc_simple_parse_convert(ep, NULL, adata);
+
+ of_node_put(port);
+ of_node_put(ports);
+}
+
+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_parse_node(struct asoc_simple_priv *priv,
+ enum graph_type gtype,
+ struct device_node *ep,
+ struct link_info *li,
+ int is_cpu, int idx)
+{
+ 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, is_single_links = 0;
+
+ if (is_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_graph_parse_dai(dev, ep, dlc, &is_single_links);
+ if (ret < 0)
+ return ret;
+
+ ret = asoc_simple_parse_tdm(ep, dai);
+ if (ret < 0)
+ return ret;
+
+ ret = asoc_simple_parse_tdm_width_map(dev, ep, dai);
+ if (ret < 0)
+ return ret;
+
+ ret = asoc_simple_parse_clk(dev, ep, dai, dlc);
+ if (ret < 0)
+ return ret;
+
+ /*
+ * set DAI Name
+ */
+ if (!dai_link->name) {
+ struct snd_soc_dai_link_component *cpus = dlc;
+ struct snd_soc_dai_link_component *codecs = asoc_link_to_codec(dai_link, idx);
+ char *cpu_multi = "";
+ char *codec_multi = "";
+
+ if (dai_link->num_cpus > 1)
+ cpu_multi = "_multi";
+ if (dai_link->num_codecs > 1)
+ codec_multi = "_multi";
+
+ switch (gtype) {
+ case GRAPH_NORMAL:
+ /* run is_cpu only. see audio_graph2_link_normal() */
+ if (is_cpu)
+ asoc_simple_set_dailink_name(dev, dai_link, "%s%s-%s%s",
+ cpus->dai_name, cpu_multi,
+ codecs->dai_name, codec_multi);
+ break;
+ case GRAPH_DPCM:
+ if (is_cpu)
+ asoc_simple_set_dailink_name(dev, dai_link, "fe.%pOFP.%s%s",
+ cpus->of_node, cpus->dai_name, cpu_multi);
+ else
+ asoc_simple_set_dailink_name(dev, dai_link, "be.%pOFP.%s%s",
+ codecs->of_node, codecs->dai_name, codec_multi);
+ break;
+ case GRAPH_C2C:
+ /* run is_cpu only. see audio_graph2_link_c2c() */
+ if (is_cpu)
+ asoc_simple_set_dailink_name(dev, dai_link, "c2c.%s%s-%s%s",
+ cpus->dai_name, cpu_multi,
+ codecs->dai_name, codec_multi);
+ break;
+ default:
+ break;
+ }
+ }
+
+ /*
+ * Check "prefix" from top node
+ * if DPCM-BE case
+ */
+ if (!is_cpu && gtype == GRAPH_DPCM) {
+ struct snd_soc_dai_link_component *codecs = asoc_link_to_codec(dai_link, idx);
+ struct snd_soc_codec_conf *cconf = simple_props_to_codec_conf(dai_props, idx);
+ struct device_node *rport = of_get_parent(ep);
+ struct device_node *rports = of_get_parent(rport);
+
+ if (of_node_name_eq(rports, "ports"))
+ snd_soc_of_parse_node_prefix(rports, cconf, codecs->of_node, "prefix");
+ snd_soc_of_parse_node_prefix(rport, cconf, codecs->of_node, "prefix");
+
+ of_node_put(rport);
+ of_node_put(rports);
+ }
+
+ if (is_cpu) {
+ struct snd_soc_dai_link_component *cpus = dlc;
+ struct snd_soc_dai_link_component *platforms = asoc_link_to_platform(dai_link, idx);
+
+ asoc_simple_canonicalize_cpu(cpus, is_single_links);
+ asoc_simple_canonicalize_platform(platforms, cpus);
+ }
+
+ return 0;
+}
+
+static int graph_parse_node(struct asoc_simple_priv *priv,
+ enum graph_type gtype,
+ struct device_node *port,
+ struct link_info *li, int is_cpu)
+{
+ struct device_node *ep;
+ int ret = 0;
+
+ if (graph_lnk_is_multi(port)) {
+ int idx;
+
+ of_node_get(port);
+
+ for (idx = 0;; idx++) {
+ ep = graph_get_next_multi_ep(&port);
+ if (!ep)
+ break;
+
+ ret = __graph_parse_node(priv, gtype, ep,
+ li, is_cpu, idx);
+ of_node_put(ep);
+ if (ret < 0)
+ break;
+ }
+ } else {
+ /* Single CPU / Codec */
+ ep = port_to_endpoint(port);
+ ret = __graph_parse_node(priv, gtype, ep, li, is_cpu, 0);
+ of_node_put(ep);
+ }
+
+ return ret;
+}
+
+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 void graph_link_init(struct asoc_simple_priv *priv,
+ struct device_node *port,
+ struct link_info *li,
+ int is_cpu_node)
+{
+ struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link);
+ struct device_node *ep;
+ struct device_node *ports;
+ unsigned int daifmt = 0, daiclk = 0;
+ unsigned int bit_frame = 0;
+
+ if (graph_lnk_is_multi(port)) {
+ of_node_get(port);
+ ep = graph_get_next_multi_ep(&port);
+ port = of_get_parent(ep);
+ } else {
+ ep = port_to_endpoint(port);
+ }
+
+ ports = of_get_parent(port);
+
+ /*
+ * 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_flipped(daiclk);
+
+ dai_link->dai_fmt = daifmt | daiclk;
+ dai_link->init = asoc_simple_dai_init;
+ dai_link->ops = &graph_ops;
+ if (priv->ops)
+ dai_link->ops = priv->ops;
+}
+
+int audio_graph2_link_normal(struct asoc_simple_priv *priv,
+ struct device_node *lnk,
+ struct link_info *li)
+{
+ struct device_node *cpu_port = lnk;
+ struct device_node *cpu_ep = port_to_endpoint(cpu_port);
+ struct device_node *codec_port = of_graph_get_remote_port(cpu_ep);
+ int ret;
+
+ /*
+ * call Codec first.
+ * see
+ * __graph_parse_node() :: DAI Naming
+ */
+ ret = graph_parse_node(priv, GRAPH_NORMAL, codec_port, li, 0);
+ if (ret < 0)
+ goto err;
+
+ /*
+ * call CPU, and set DAI Name
+ */
+ ret = graph_parse_node(priv, GRAPH_NORMAL, cpu_port, li, 1);
+ if (ret < 0)
+ goto err;
+
+ graph_link_init(priv, cpu_port, li, 1);
+err:
+ of_node_put(codec_port);
+ of_node_put(cpu_ep);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(audio_graph2_link_normal);
+
+int audio_graph2_link_dpcm(struct asoc_simple_priv *priv,
+ struct device_node *lnk,
+ struct link_info *li)
+{
+ struct device_node *ep = port_to_endpoint(lnk);
+ struct device_node *rep = of_graph_get_remote_endpoint(ep);
+ struct device_node *rport = of_graph_get_remote_port(ep);
+ 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);
+ int is_cpu = asoc_graph_is_ports0(lnk);
+ int ret;
+
+ if (is_cpu) {
+ /*
+ * dpcm {
+ * // Front-End
+ * ports@0 {
+ * => lnk: port@0 { ep: { ... = rep }; };
+ * ...
+ * };
+ * // Back-End
+ * ports@0 {
+ * ...
+ * };
+ * };
+ *
+ * CPU {
+ * rports: ports {
+ * rport: port@0 { rep: { ... = ep } };
+ * }
+ * }
+ */
+ /*
+ * setup CPU here, Codec is already set as dummy.
+ * see
+ * asoc_simple_init_priv()
+ */
+ dai_link->dynamic = 1;
+ dai_link->dpcm_merged_format = 1;
+
+ ret = graph_parse_node(priv, GRAPH_DPCM, rport, li, 1);
+ if (ret)
+ goto err;
+ } else {
+ /*
+ * dpcm {
+ * // Front-End
+ * ports@0 {
+ * ...
+ * };
+ * // Back-End
+ * ports@0 {
+ * => lnk: port@0 { ep: { ... = rep; }; };
+ * ...
+ * };
+ * };
+ *
+ * Codec {
+ * rports: ports {
+ * rport: port@0 { rep: { ... = ep; }; };
+ * }
+ * }
+ */
+ /*
+ * setup Codec here, CPU is already set as dummy.
+ * see
+ * asoc_simple_init_priv()
+ */
+
+ /* BE settings */
+ dai_link->no_pcm = 1;
+ dai_link->be_hw_params_fixup = asoc_simple_be_hw_params_fixup;
+
+ ret = graph_parse_node(priv, GRAPH_DPCM, rport, li, 0);
+ if (ret < 0)
+ goto err;
+ }
+
+ graph_parse_convert(ep, dai_props); /* at node of <dpcm> */
+ graph_parse_convert(rep, dai_props); /* at node of <CPU/Codec> */
+
+ snd_soc_dai_link_set_capabilities(dai_link);
+
+ graph_link_init(priv, rport, li, is_cpu);
+err:
+ of_node_put(ep);
+ of_node_put(rep);
+ of_node_put(rport);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(audio_graph2_link_dpcm);
+
+int audio_graph2_link_c2c(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 *port0, *port1, *ports;
+ struct device_node *codec0_port, *codec1_port;
+ struct device_node *ep0, *ep1;
+ u32 val = 0;
+ int ret = -EINVAL;
+
+ /*
+ * codec2codec {
+ * ports {
+ * rate = <48000>;
+ * => lnk: port@0 { c2c0_ep: { ... = codec0_ep; }; };
+ * port@1 { c2c1_ep: { ... = codec1_ep; }; };
+ * };
+ * };
+ *
+ * Codec {
+ * ports {
+ * port@0 { codec0_ep: ... }; };
+ * port@1 { codec1_ep: ... }; };
+ * };
+ * };
+ */
+ of_node_get(lnk);
+ port0 = lnk;
+ ports = of_get_parent(port0);
+ port1 = of_get_next_child(ports, lnk);
+
+ /*
+ * Card2 can use original Codec2Codec settings if DT has.
+ * It will use default settings if no settings on DT.
+ * see
+ * asoc_simple_init_for_codec2codec()
+ *
+ * Add more settings here if needed
+ */
+ of_property_read_u32(ports, "rate", &val);
+ if (val) {
+ struct device *dev = simple_priv_to_dev(priv);
+ struct snd_soc_pcm_stream *c2c_conf;
+
+ c2c_conf = devm_kzalloc(dev, sizeof(*c2c_conf), GFP_KERNEL);
+ if (!c2c_conf)
+ goto err1;
+
+ c2c_conf->formats = SNDRV_PCM_FMTBIT_S32_LE; /* update ME */
+ c2c_conf->rates = SNDRV_PCM_RATE_8000_384000;
+ c2c_conf->rate_min =
+ c2c_conf->rate_max = val;
+ c2c_conf->channels_min =
+ c2c_conf->channels_max = 2; /* update ME */
+
+ dai_link->c2c_params = c2c_conf;
+ dai_link->num_c2c_params = 1;
+ }
+
+ ep0 = port_to_endpoint(port0);
+ ep1 = port_to_endpoint(port1);
+
+ codec0_port = of_graph_get_remote_port(ep0);
+ codec1_port = of_graph_get_remote_port(ep1);
+
+ /*
+ * call Codec first.
+ * see
+ * __graph_parse_node() :: DAI Naming
+ */
+ ret = graph_parse_node(priv, GRAPH_C2C, codec1_port, li, 0);
+ if (ret < 0)
+ goto err2;
+
+ /*
+ * call CPU, and set DAI Name
+ */
+ ret = graph_parse_node(priv, GRAPH_C2C, codec0_port, li, 1);
+ if (ret < 0)
+ goto err2;
+
+ graph_link_init(priv, codec0_port, li, 1);
+err2:
+ of_node_put(ep0);
+ of_node_put(ep1);
+ of_node_put(codec0_port);
+ of_node_put(codec1_port);
+err1:
+ of_node_put(ports);
+ of_node_put(port0);
+ of_node_put(port1);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(audio_graph2_link_c2c);
+
+static int graph_link(struct asoc_simple_priv *priv,
+ struct graph2_custom_hooks *hooks,
+ enum graph_type gtype,
+ struct device_node *lnk,
+ struct link_info *li)
+{
+ struct device *dev = simple_priv_to_dev(priv);
+ GRAPH2_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;
+ case GRAPH_DPCM:
+ if (hooks && hooks->custom_dpcm)
+ func = hooks->custom_dpcm;
+ else
+ func = audio_graph2_link_dpcm;
+ break;
+ case GRAPH_C2C:
+ if (hooks && hooks->custom_c2c)
+ func = hooks->custom_c2c;
+ else
+ func = audio_graph2_link_c2c;
+ break;
+ default:
+ 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_counter(struct device_node *lnk)
+{
+ /*
+ * Multi CPU / Codec
+ *
+ * multi {
+ * ports {
+ * => lnk: port@0 { ... };
+ * port@1 { ... };
+ * port@2 { ... };
+ * ...
+ * };
+ * };
+ *
+ * ignore first lnk part
+ */
+ if (graph_lnk_is_multi(lnk))
+ return of_graph_get_endpoint_count(of_get_parent(lnk)) - 1;
+ /*
+ * Single CPU / Codec
+ */
+ else
+ return 1;
+}
+
+static int graph_count_normal(struct asoc_simple_priv *priv,
+ struct device_node *lnk,
+ struct link_info *li)
+{
+ struct device_node *cpu_port = lnk;
+ struct device_node *cpu_ep = port_to_endpoint(cpu_port);
+ struct device_node *codec_port = of_graph_get_remote_port(cpu_ep);
+
+ /*
+ * CPU {
+ * => lnk: port { endpoint { .. }; };
+ * };
+ */
+ /*
+ * DON'T REMOVE platforms
+ * see
+ * simple-card.c :: simple_count_noml()
+ */
+ li->num[li->link].cpus =
+ li->num[li->link].platforms = graph_counter(cpu_port);
+
+ li->num[li->link].codecs = graph_counter(codec_port);
+
+ of_node_put(cpu_ep);
+ of_node_put(codec_port);
+
+ return 0;
+}
+
+static int graph_count_dpcm(struct asoc_simple_priv *priv,
+ struct device_node *lnk,
+ struct link_info *li)
+{
+ struct device_node *ep = port_to_endpoint(lnk);
+ struct device_node *rport = of_graph_get_remote_port(ep);
+
+ /*
+ * dpcm {
+ * // Front-End
+ * ports@0 {
+ * => lnk: port@0 { endpoint { ... }; };
+ * ...
+ * };
+ * // Back-End
+ * ports@1 {
+ * => lnk: port@0 { endpoint { ... }; };
+ * ...
+ * };
+ * };
+ */
+
+ if (asoc_graph_is_ports0(lnk)) {
+ /*
+ * DON'T REMOVE platforms
+ * see
+ * simple-card.c :: simple_count_noml()
+ */
+ li->num[li->link].cpus = graph_counter(rport); /* FE */
+ li->num[li->link].platforms = graph_counter(rport);
+ } else {
+ li->num[li->link].codecs = graph_counter(rport); /* BE */
+ }
+
+ of_node_put(ep);
+ of_node_put(rport);
+
+ return 0;
+}
+
+static int graph_count_c2c(struct asoc_simple_priv *priv,
+ struct device_node *lnk,
+ struct link_info *li)
+{
+ struct device_node *ports = of_get_parent(lnk);
+ struct device_node *port0 = lnk;
+ struct device_node *port1 = of_get_next_child(ports, lnk);
+ struct device_node *ep0 = port_to_endpoint(port0);
+ struct device_node *ep1 = port_to_endpoint(port1);
+ struct device_node *codec0 = of_graph_get_remote_port(ep0);
+ struct device_node *codec1 = of_graph_get_remote_port(ep1);
+
+ of_node_get(lnk);
+
+ /*
+ * codec2codec {
+ * ports {
+ * => lnk: port@0 { endpoint { ... }; };
+ * port@1 { endpoint { ... }; };
+ * };
+ * };
+ */
+ /*
+ * DON'T REMOVE platforms
+ * see
+ * simple-card.c :: simple_count_noml()
+ */
+ li->num[li->link].cpus =
+ li->num[li->link].platforms = graph_counter(codec0);
+
+ li->num[li->link].codecs = graph_counter(codec1);
+
+ of_node_put(ports);
+ of_node_put(port1);
+ of_node_put(ep0);
+ of_node_put(ep1);
+ of_node_put(codec0);
+ of_node_put(codec1);
+
+ return 0;
+}
+
+static int graph_count(struct asoc_simple_priv *priv,
+ struct graph2_custom_hooks *hooks,
+ enum graph_type gtype,
+ struct device_node *lnk,
+ struct link_info *li)
+{
+ struct device *dev = simple_priv_to_dev(priv);
+ GRAPH2_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;
+ case GRAPH_DPCM:
+ func = graph_count_dpcm;
+ break;
+ case GRAPH_C2C:
+ func = graph_count_c2c;
+ break;
+ default:
+ 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 graph2_custom_hooks *hooks,
+ struct link_info *li,
+ int (*func)(struct asoc_simple_priv *priv,
+ struct graph2_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 graph2_custom_hooks *hooks)
+{
+ struct snd_soc_card *card = simple_priv_to_card(priv);
+ struct link_info *li;
+ int ret;
+
+ 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)
+ dev_err_probe(dev, ret, "parse error\n");
+
+ 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 Card2");
+MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
diff --git a/sound/soc/generic/simple-card-utils.c b/sound/soc/generic/simple-card-utils.c
new file mode 100644
index 0000000000..2588ec735d
--- /dev/null
+++ b/sound/soc/generic/simple-card-utils.c
@@ -0,0 +1,1138 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// simple-card-utils.c
+//
+// Copyright (c) 2016 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+
+#include <linux/clk.h>
+#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_graph.h>
+#include <sound/jack.h>
+#include <sound/pcm_params.h>
+#include <sound/simple_card_utils.h>
+
+static void asoc_simple_fixup_sample_fmt(struct asoc_simple_data *data,
+ struct snd_pcm_hw_params *params)
+{
+ int i;
+ struct snd_mask *mask = hw_param_mask(params,
+ SNDRV_PCM_HW_PARAM_FORMAT);
+ struct {
+ char *fmt;
+ u32 val;
+ } of_sample_fmt_table[] = {
+ { "s8", SNDRV_PCM_FORMAT_S8},
+ { "s16_le", SNDRV_PCM_FORMAT_S16_LE},
+ { "s24_le", SNDRV_PCM_FORMAT_S24_LE},
+ { "s24_3le", SNDRV_PCM_FORMAT_S24_3LE},
+ { "s32_le", SNDRV_PCM_FORMAT_S32_LE},
+ };
+
+ for (i = 0; i < ARRAY_SIZE(of_sample_fmt_table); i++) {
+ if (!strcmp(data->convert_sample_format,
+ of_sample_fmt_table[i].fmt)) {
+ snd_mask_none(mask);
+ snd_mask_set(mask, of_sample_fmt_table[i].val);
+ break;
+ }
+ }
+}
+
+void asoc_simple_parse_convert(struct device_node *np,
+ char *prefix,
+ struct asoc_simple_data *data)
+{
+ char prop[128];
+
+ if (!prefix)
+ prefix = "";
+
+ /* sampling rate convert */
+ snprintf(prop, sizeof(prop), "%s%s", prefix, "convert-rate");
+ of_property_read_u32(np, prop, &data->convert_rate);
+
+ /* channels transfer */
+ snprintf(prop, sizeof(prop), "%s%s", prefix, "convert-channels");
+ of_property_read_u32(np, prop, &data->convert_channels);
+
+ /* convert sample format */
+ snprintf(prop, sizeof(prop), "%s%s", prefix, "convert-sample-format");
+ of_property_read_string(np, prop, &data->convert_sample_format);
+}
+EXPORT_SYMBOL_GPL(asoc_simple_parse_convert);
+
+/**
+ * asoc_simple_is_convert_required() - Query if HW param conversion was requested
+ * @data: Link data.
+ *
+ * Returns true if any HW param conversion was requested for this DAI link with
+ * any "convert-xxx" properties.
+ */
+bool asoc_simple_is_convert_required(const struct asoc_simple_data *data)
+{
+ return data->convert_rate ||
+ data->convert_channels ||
+ data->convert_sample_format;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_is_convert_required);
+
+int asoc_simple_parse_daifmt(struct device *dev,
+ struct device_node *node,
+ struct device_node *codec,
+ char *prefix,
+ unsigned int *retfmt)
+{
+ struct device_node *bitclkmaster = NULL;
+ struct device_node *framemaster = NULL;
+ unsigned int daifmt;
+
+ daifmt = snd_soc_daifmt_parse_format(node, prefix);
+
+ snd_soc_daifmt_parse_clock_provider_as_phandle(node, prefix, &bitclkmaster, &framemaster);
+ if (!bitclkmaster && !framemaster) {
+ /*
+ * No dai-link level and master setting was not found from
+ * sound node level, revert back to legacy DT parsing and
+ * take the settings from codec node.
+ */
+ dev_dbg(dev, "Revert to legacy daifmt parsing\n");
+
+ daifmt |= snd_soc_daifmt_parse_clock_provider_as_flag(codec, NULL);
+ } else {
+ daifmt |= snd_soc_daifmt_clock_provider_from_bitmap(
+ ((codec == bitclkmaster) << 4) | (codec == framemaster));
+ }
+
+ of_node_put(bitclkmaster);
+ of_node_put(framemaster);
+
+ *retfmt = daifmt;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_parse_daifmt);
+
+int asoc_simple_parse_tdm_width_map(struct device *dev, struct device_node *np,
+ struct asoc_simple_dai *dai)
+{
+ u32 *array_values, *p;
+ int n, i, ret;
+
+ if (!of_property_read_bool(np, "dai-tdm-slot-width-map"))
+ return 0;
+
+ n = of_property_count_elems_of_size(np, "dai-tdm-slot-width-map", sizeof(u32));
+ if (n % 3) {
+ dev_err(dev, "Invalid number of cells for dai-tdm-slot-width-map\n");
+ return -EINVAL;
+ }
+
+ dai->tdm_width_map = devm_kcalloc(dev, n, sizeof(*dai->tdm_width_map), GFP_KERNEL);
+ if (!dai->tdm_width_map)
+ return -ENOMEM;
+
+ array_values = kcalloc(n, sizeof(*array_values), GFP_KERNEL);
+ if (!array_values)
+ return -ENOMEM;
+
+ ret = of_property_read_u32_array(np, "dai-tdm-slot-width-map", array_values, n);
+ if (ret < 0) {
+ dev_err(dev, "Could not read dai-tdm-slot-width-map: %d\n", ret);
+ goto out;
+ }
+
+ p = array_values;
+ for (i = 0; i < n / 3; ++i) {
+ dai->tdm_width_map[i].sample_bits = *p++;
+ dai->tdm_width_map[i].slot_width = *p++;
+ dai->tdm_width_map[i].slot_count = *p++;
+ }
+
+ dai->n_tdm_widths = i;
+ ret = 0;
+out:
+ kfree(array_values);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_parse_tdm_width_map);
+
+int asoc_simple_set_dailink_name(struct device *dev,
+ struct snd_soc_dai_link *dai_link,
+ const char *fmt, ...)
+{
+ va_list ap;
+ char *name = NULL;
+ int ret = -ENOMEM;
+
+ va_start(ap, fmt);
+ name = devm_kvasprintf(dev, GFP_KERNEL, fmt, ap);
+ va_end(ap);
+
+ if (name) {
+ ret = 0;
+
+ dai_link->name = name;
+ dai_link->stream_name = name;
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_set_dailink_name);
+
+int asoc_simple_parse_card_name(struct snd_soc_card *card,
+ char *prefix)
+{
+ int ret;
+
+ if (!prefix)
+ prefix = "";
+
+ /* Parse the card name from DT */
+ ret = snd_soc_of_parse_card_name(card, "label");
+ if (ret < 0 || !card->name) {
+ char prop[128];
+
+ snprintf(prop, sizeof(prop), "%sname", prefix);
+ ret = snd_soc_of_parse_card_name(card, prop);
+ if (ret < 0)
+ return ret;
+ }
+
+ if (!card->name && card->dai_link)
+ card->name = card->dai_link->name;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_parse_card_name);
+
+static int asoc_simple_clk_enable(struct asoc_simple_dai *dai)
+{
+ if (dai)
+ return clk_prepare_enable(dai->clk);
+
+ return 0;
+}
+
+static void asoc_simple_clk_disable(struct asoc_simple_dai *dai)
+{
+ if (dai)
+ clk_disable_unprepare(dai->clk);
+}
+
+int asoc_simple_parse_clk(struct device *dev,
+ struct device_node *node,
+ struct asoc_simple_dai *simple_dai,
+ struct snd_soc_dai_link_component *dlc)
+{
+ struct clk *clk;
+ u32 val;
+
+ /*
+ * Parse dai->sysclk come from "clocks = <&xxx>"
+ * (if system has common clock)
+ * or "system-clock-frequency = <xxx>"
+ * or device's module clock.
+ */
+ clk = devm_get_clk_from_child(dev, node, NULL);
+ simple_dai->clk_fixed = of_property_read_bool(
+ node, "system-clock-fixed");
+ if (!IS_ERR(clk)) {
+ simple_dai->sysclk = clk_get_rate(clk);
+
+ simple_dai->clk = clk;
+ } else if (!of_property_read_u32(node, "system-clock-frequency", &val)) {
+ simple_dai->sysclk = val;
+ simple_dai->clk_fixed = true;
+ } else {
+ clk = devm_get_clk_from_child(dev, dlc->of_node, NULL);
+ if (!IS_ERR(clk))
+ simple_dai->sysclk = clk_get_rate(clk);
+ }
+
+ if (of_property_read_bool(node, "system-clock-direction-out"))
+ simple_dai->clk_direction = SND_SOC_CLOCK_OUT;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_parse_clk);
+
+static int asoc_simple_check_fixed_sysclk(struct device *dev,
+ struct asoc_simple_dai *dai,
+ unsigned int *fixed_sysclk)
+{
+ if (dai->clk_fixed) {
+ if (*fixed_sysclk && *fixed_sysclk != dai->sysclk) {
+ dev_err(dev, "inconsistent fixed sysclk rates (%u vs %u)\n",
+ *fixed_sysclk, dai->sysclk);
+ return -EINVAL;
+ }
+ *fixed_sysclk = dai->sysclk;
+ }
+
+ return 0;
+}
+
+int asoc_simple_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 simple_dai_props *props = simple_priv_to_props(priv, rtd->num);
+ struct asoc_simple_dai *dai;
+ unsigned int fixed_sysclk = 0;
+ int i1, i2, i;
+ int ret;
+
+ for_each_prop_dai_cpu(props, i1, dai) {
+ ret = asoc_simple_clk_enable(dai);
+ if (ret)
+ goto cpu_err;
+ ret = asoc_simple_check_fixed_sysclk(rtd->dev, dai, &fixed_sysclk);
+ if (ret)
+ goto cpu_err;
+ }
+
+ for_each_prop_dai_codec(props, i2, dai) {
+ ret = asoc_simple_clk_enable(dai);
+ if (ret)
+ goto codec_err;
+ ret = asoc_simple_check_fixed_sysclk(rtd->dev, dai, &fixed_sysclk);
+ if (ret)
+ goto codec_err;
+ }
+
+ if (fixed_sysclk && props->mclk_fs) {
+ unsigned int fixed_rate = fixed_sysclk / props->mclk_fs;
+
+ if (fixed_sysclk % props->mclk_fs) {
+ dev_err(rtd->dev, "fixed sysclk %u not divisible by mclk_fs %u\n",
+ fixed_sysclk, props->mclk_fs);
+ ret = -EINVAL;
+ goto codec_err;
+ }
+ ret = snd_pcm_hw_constraint_minmax(substream->runtime, SNDRV_PCM_HW_PARAM_RATE,
+ fixed_rate, fixed_rate);
+ if (ret < 0)
+ goto codec_err;
+ }
+
+ return 0;
+
+codec_err:
+ for_each_prop_dai_codec(props, i, dai) {
+ if (i >= i2)
+ break;
+ asoc_simple_clk_disable(dai);
+ }
+cpu_err:
+ for_each_prop_dai_cpu(props, i, dai) {
+ if (i >= i1)
+ break;
+ asoc_simple_clk_disable(dai);
+ }
+ return ret;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_startup);
+
+void asoc_simple_shutdown(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 simple_dai_props *props = simple_priv_to_props(priv, rtd->num);
+ struct asoc_simple_dai *dai;
+ int i;
+
+ for_each_prop_dai_cpu(props, i, dai) {
+ struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, i);
+
+ if (props->mclk_fs && !dai->clk_fixed && !snd_soc_dai_active(cpu_dai))
+ snd_soc_dai_set_sysclk(cpu_dai,
+ 0, 0, SND_SOC_CLOCK_OUT);
+
+ asoc_simple_clk_disable(dai);
+ }
+ for_each_prop_dai_codec(props, i, dai) {
+ struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, i);
+
+ if (props->mclk_fs && !dai->clk_fixed && !snd_soc_dai_active(codec_dai))
+ snd_soc_dai_set_sysclk(codec_dai,
+ 0, 0, SND_SOC_CLOCK_IN);
+
+ asoc_simple_clk_disable(dai);
+ }
+}
+EXPORT_SYMBOL_GPL(asoc_simple_shutdown);
+
+static int asoc_simple_set_clk_rate(struct device *dev,
+ struct asoc_simple_dai *simple_dai,
+ unsigned long rate)
+{
+ if (!simple_dai)
+ return 0;
+
+ if (simple_dai->clk_fixed && rate != simple_dai->sysclk) {
+ dev_err(dev, "dai %s invalid clock rate %lu\n", simple_dai->name, rate);
+ return -EINVAL;
+ }
+
+ if (!simple_dai->clk)
+ return 0;
+
+ if (clk_get_rate(simple_dai->clk) == rate)
+ return 0;
+
+ return clk_set_rate(simple_dai->clk, rate);
+}
+
+static int asoc_simple_set_tdm(struct snd_soc_dai *dai,
+ struct asoc_simple_dai *simple_dai,
+ struct snd_pcm_hw_params *params)
+{
+ int sample_bits = params_width(params);
+ int slot_width, slot_count;
+ int i, ret;
+
+ if (!simple_dai || !simple_dai->tdm_width_map)
+ return 0;
+
+ slot_width = simple_dai->slot_width;
+ slot_count = simple_dai->slots;
+
+ if (slot_width == 0)
+ slot_width = sample_bits;
+
+ for (i = 0; i < simple_dai->n_tdm_widths; ++i) {
+ if (simple_dai->tdm_width_map[i].sample_bits == sample_bits) {
+ slot_width = simple_dai->tdm_width_map[i].slot_width;
+ slot_count = simple_dai->tdm_width_map[i].slot_count;
+ break;
+ }
+ }
+
+ ret = snd_soc_dai_set_tdm_slot(dai,
+ simple_dai->tx_slot_mask,
+ simple_dai->rx_slot_mask,
+ slot_count,
+ slot_width);
+ if (ret && ret != -ENOTSUPP) {
+ dev_err(dai->dev, "simple-card: set_tdm_slot error: %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+int asoc_simple_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+ struct asoc_simple_dai *pdai;
+ struct snd_soc_dai *sdai;
+ struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
+ struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num);
+ unsigned int mclk, mclk_fs = 0;
+ int i, ret;
+
+ if (props->mclk_fs)
+ mclk_fs = props->mclk_fs;
+
+ if (mclk_fs) {
+ struct snd_soc_component *component;
+ mclk = params_rate(params) * mclk_fs;
+
+ for_each_prop_dai_codec(props, i, pdai) {
+ ret = asoc_simple_set_clk_rate(rtd->dev, pdai, mclk);
+ if (ret < 0)
+ return ret;
+ }
+
+ for_each_prop_dai_cpu(props, i, pdai) {
+ ret = asoc_simple_set_clk_rate(rtd->dev, pdai, mclk);
+ if (ret < 0)
+ return ret;
+ }
+
+ /* Ensure sysclk is set on all components in case any
+ * (such as platform components) are missed by calls to
+ * snd_soc_dai_set_sysclk.
+ */
+ for_each_rtd_components(rtd, i, component) {
+ ret = snd_soc_component_set_sysclk(component, 0, 0,
+ mclk, SND_SOC_CLOCK_IN);
+ if (ret && ret != -ENOTSUPP)
+ return ret;
+ }
+
+ for_each_rtd_codec_dais(rtd, i, sdai) {
+ ret = snd_soc_dai_set_sysclk(sdai, 0, mclk, SND_SOC_CLOCK_IN);
+ if (ret && ret != -ENOTSUPP)
+ return ret;
+ }
+
+ for_each_rtd_cpu_dais(rtd, i, sdai) {
+ ret = snd_soc_dai_set_sysclk(sdai, 0, mclk, SND_SOC_CLOCK_OUT);
+ if (ret && ret != -ENOTSUPP)
+ return ret;
+ }
+ }
+
+ for_each_prop_dai_codec(props, i, pdai) {
+ sdai = asoc_rtd_to_codec(rtd, i);
+ ret = asoc_simple_set_tdm(sdai, pdai, params);
+ if (ret < 0)
+ return ret;
+ }
+
+ for_each_prop_dai_cpu(props, i, pdai) {
+ sdai = asoc_rtd_to_cpu(rtd, i);
+ ret = asoc_simple_set_tdm(sdai, pdai, params);
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_hw_params);
+
+int asoc_simple_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
+ struct snd_pcm_hw_params *params)
+{
+ struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
+ struct simple_dai_props *dai_props = simple_priv_to_props(priv, rtd->num);
+ struct asoc_simple_data *data = &dai_props->adata;
+ struct snd_interval *rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
+ struct snd_interval *channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
+
+ if (data->convert_rate)
+ rate->min =
+ rate->max = data->convert_rate;
+
+ if (data->convert_channels)
+ channels->min =
+ channels->max = data->convert_channels;
+
+ if (data->convert_sample_format)
+ asoc_simple_fixup_sample_fmt(data, params);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_be_hw_params_fixup);
+
+static int asoc_simple_init_dai(struct snd_soc_dai *dai,
+ struct asoc_simple_dai *simple_dai)
+{
+ int ret;
+
+ if (!simple_dai)
+ return 0;
+
+ if (simple_dai->sysclk) {
+ ret = snd_soc_dai_set_sysclk(dai, 0, simple_dai->sysclk,
+ simple_dai->clk_direction);
+ if (ret && ret != -ENOTSUPP) {
+ dev_err(dai->dev, "simple-card: set_sysclk error\n");
+ return ret;
+ }
+ }
+
+ if (simple_dai->slots) {
+ ret = snd_soc_dai_set_tdm_slot(dai,
+ simple_dai->tx_slot_mask,
+ simple_dai->rx_slot_mask,
+ simple_dai->slots,
+ simple_dai->slot_width);
+ if (ret && ret != -ENOTSUPP) {
+ dev_err(dai->dev, "simple-card: set_tdm_slot error\n");
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+static inline int asoc_simple_component_is_codec(struct snd_soc_component *component)
+{
+ return component->driver->endianness;
+}
+
+static int asoc_simple_init_for_codec2codec(struct snd_soc_pcm_runtime *rtd,
+ struct simple_dai_props *dai_props)
+{
+ struct snd_soc_dai_link *dai_link = rtd->dai_link;
+ struct snd_soc_component *component;
+ struct snd_soc_pcm_stream *c2c_params;
+ struct snd_pcm_hardware hw;
+ int i, ret, stream;
+
+ /* Do nothing if it already has Codec2Codec settings */
+ if (dai_link->c2c_params)
+ return 0;
+
+ /* Do nothing if it was DPCM :: BE */
+ if (dai_link->no_pcm)
+ return 0;
+
+ /* Only Codecs */
+ for_each_rtd_components(rtd, i, component) {
+ if (!asoc_simple_component_is_codec(component))
+ return 0;
+ }
+
+ /* Assumes the capabilities are the same for all supported streams */
+ for_each_pcm_streams(stream) {
+ ret = snd_soc_runtime_calc_hw(rtd, &hw, stream);
+ if (ret == 0)
+ break;
+ }
+
+ if (ret < 0) {
+ dev_err(rtd->dev, "simple-card: no valid dai_link params\n");
+ return ret;
+ }
+
+ c2c_params = devm_kzalloc(rtd->dev, sizeof(*c2c_params), GFP_KERNEL);
+ if (!c2c_params)
+ return -ENOMEM;
+
+ c2c_params->formats = hw.formats;
+ c2c_params->rates = hw.rates;
+ c2c_params->rate_min = hw.rate_min;
+ c2c_params->rate_max = hw.rate_max;
+ c2c_params->channels_min = hw.channels_min;
+ c2c_params->channels_max = hw.channels_max;
+
+ dai_link->c2c_params = c2c_params;
+ dai_link->num_c2c_params = 1;
+
+ return 0;
+}
+
+int asoc_simple_dai_init(struct snd_soc_pcm_runtime *rtd)
+{
+ struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
+ struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num);
+ struct asoc_simple_dai *dai;
+ int i, ret;
+
+ for_each_prop_dai_codec(props, i, dai) {
+ ret = asoc_simple_init_dai(asoc_rtd_to_codec(rtd, i), dai);
+ if (ret < 0)
+ return ret;
+ }
+ for_each_prop_dai_cpu(props, i, dai) {
+ ret = asoc_simple_init_dai(asoc_rtd_to_cpu(rtd, i), dai);
+ if (ret < 0)
+ return ret;
+ }
+
+ ret = asoc_simple_init_for_codec2codec(rtd, props);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_dai_init);
+
+void asoc_simple_canonicalize_platform(struct snd_soc_dai_link_component *platforms,
+ struct snd_soc_dai_link_component *cpus)
+{
+ /*
+ * Assumes Platform == CPU
+ *
+ * Some CPU might be using soc-generic-dmaengine-pcm. This means CPU and Platform
+ * are different Component, but are sharing same component->dev.
+ *
+ * Let's assume Platform is same as CPU if it doesn't identify Platform on DT.
+ * see
+ * simple-card.c :: simple_count_noml()
+ */
+ if (!platforms->of_node)
+ snd_soc_dlc_use_cpu_as_platform(platforms, cpus);
+}
+EXPORT_SYMBOL_GPL(asoc_simple_canonicalize_platform);
+
+void asoc_simple_canonicalize_cpu(struct snd_soc_dai_link_component *cpus,
+ int is_single_links)
+{
+ /*
+ * In soc_bind_dai_link() will check cpu name after
+ * of_node matching if dai_link has cpu_dai_name.
+ * but, it will never match if name was created by
+ * fmt_single_name() remove cpu_dai_name if cpu_args
+ * was 0. See:
+ * fmt_single_name()
+ * fmt_multiple_name()
+ */
+ if (is_single_links)
+ cpus->dai_name = NULL;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_canonicalize_cpu);
+
+void asoc_simple_clean_reference(struct snd_soc_card *card)
+{
+ struct snd_soc_dai_link *dai_link;
+ struct snd_soc_dai_link_component *cpu;
+ struct snd_soc_dai_link_component *codec;
+ int i, j;
+
+ for_each_card_prelinks(card, i, dai_link) {
+ for_each_link_cpus(dai_link, j, cpu)
+ of_node_put(cpu->of_node);
+ for_each_link_codecs(dai_link, j, codec)
+ of_node_put(codec->of_node);
+ }
+}
+EXPORT_SYMBOL_GPL(asoc_simple_clean_reference);
+
+int asoc_simple_parse_routing(struct snd_soc_card *card,
+ char *prefix)
+{
+ struct device_node *node = card->dev->of_node;
+ char prop[128];
+
+ if (!prefix)
+ prefix = "";
+
+ snprintf(prop, sizeof(prop), "%s%s", prefix, "routing");
+
+ if (!of_property_read_bool(node, prop))
+ return 0;
+
+ return snd_soc_of_parse_audio_routing(card, prop);
+}
+EXPORT_SYMBOL_GPL(asoc_simple_parse_routing);
+
+int asoc_simple_parse_widgets(struct snd_soc_card *card,
+ char *prefix)
+{
+ struct device_node *node = card->dev->of_node;
+ char prop[128];
+
+ if (!prefix)
+ prefix = "";
+
+ snprintf(prop, sizeof(prop), "%s%s", prefix, "widgets");
+
+ if (of_property_read_bool(node, prop))
+ return snd_soc_of_parse_audio_simple_widgets(card, prop);
+
+ /* no widgets is not error */
+ return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_parse_widgets);
+
+int asoc_simple_parse_pin_switches(struct snd_soc_card *card,
+ char *prefix)
+{
+ char prop[128];
+
+ if (!prefix)
+ prefix = "";
+
+ snprintf(prop, sizeof(prop), "%s%s", prefix, "pin-switches");
+
+ return snd_soc_of_parse_pin_switches(card, prop);
+}
+EXPORT_SYMBOL_GPL(asoc_simple_parse_pin_switches);
+
+int asoc_simple_init_jack(struct snd_soc_card *card,
+ struct asoc_simple_jack *sjack,
+ int is_hp, char *prefix,
+ char *pin)
+{
+ struct device *dev = card->dev;
+ struct gpio_desc *desc;
+ char prop[128];
+ char *pin_name;
+ char *gpio_name;
+ int mask;
+ int error;
+
+ if (!prefix)
+ prefix = "";
+
+ sjack->gpio.gpio = -ENOENT;
+
+ if (is_hp) {
+ snprintf(prop, sizeof(prop), "%shp-det", prefix);
+ pin_name = pin ? pin : "Headphones";
+ gpio_name = "Headphone detection";
+ mask = SND_JACK_HEADPHONE;
+ } else {
+ snprintf(prop, sizeof(prop), "%smic-det", prefix);
+ pin_name = pin ? pin : "Mic Jack";
+ gpio_name = "Mic detection";
+ mask = SND_JACK_MICROPHONE;
+ }
+
+ desc = gpiod_get_optional(dev, prop, GPIOD_IN);
+ error = PTR_ERR_OR_ZERO(desc);
+ if (error)
+ return error;
+
+ if (desc) {
+ error = gpiod_set_consumer_name(desc, gpio_name);
+ if (error)
+ return error;
+
+ sjack->pin.pin = pin_name;
+ sjack->pin.mask = mask;
+
+ sjack->gpio.name = gpio_name;
+ sjack->gpio.report = mask;
+ sjack->gpio.desc = desc;
+ sjack->gpio.debounce_time = 150;
+
+ snd_soc_card_jack_new_pins(card, pin_name, mask, &sjack->jack,
+ &sjack->pin, 1);
+
+ snd_soc_jack_add_gpios(&sjack->jack, 1, &sjack->gpio);
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_init_jack);
+
+int asoc_simple_init_aux_jacks(struct asoc_simple_priv *priv, char *prefix)
+{
+ struct snd_soc_card *card = simple_priv_to_card(priv);
+ struct snd_soc_component *component;
+ int found_jack_index = 0;
+ int type = 0;
+ int num = 0;
+ int ret;
+
+ if (priv->aux_jacks)
+ return 0;
+
+ for_each_card_auxs(card, component) {
+ type = snd_soc_component_get_jack_type(component);
+ if (type > 0)
+ num++;
+ }
+ if (num < 1)
+ return 0;
+
+ priv->aux_jacks = devm_kcalloc(card->dev, num,
+ sizeof(struct snd_soc_jack), GFP_KERNEL);
+ if (!priv->aux_jacks)
+ return -ENOMEM;
+
+ for_each_card_auxs(card, component) {
+ char id[128];
+ struct snd_soc_jack *jack;
+
+ if (found_jack_index >= num)
+ break;
+
+ type = snd_soc_component_get_jack_type(component);
+ if (type <= 0)
+ continue;
+
+ /* create jack */
+ jack = &(priv->aux_jacks[found_jack_index++]);
+ snprintf(id, sizeof(id), "%s-jack", component->name);
+ ret = snd_soc_card_jack_new(card, id, type, jack);
+ if (ret)
+ continue;
+
+ (void)snd_soc_component_set_jack(component, jack, NULL);
+ }
+ return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_init_aux_jacks);
+
+int asoc_simple_init_priv(struct asoc_simple_priv *priv,
+ struct link_info *li)
+{
+ struct snd_soc_card *card = simple_priv_to_card(priv);
+ struct device *dev = simple_priv_to_dev(priv);
+ struct snd_soc_dai_link *dai_link;
+ struct simple_dai_props *dai_props;
+ struct asoc_simple_dai *dais;
+ struct snd_soc_dai_link_component *dlcs;
+ struct snd_soc_codec_conf *cconf = NULL;
+ int i, dai_num = 0, dlc_num = 0, cnf_num = 0;
+
+ dai_props = devm_kcalloc(dev, li->link, sizeof(*dai_props), GFP_KERNEL);
+ dai_link = devm_kcalloc(dev, li->link, sizeof(*dai_link), GFP_KERNEL);
+ if (!dai_props || !dai_link)
+ return -ENOMEM;
+
+ /*
+ * dais (= CPU+Codec)
+ * dlcs (= CPU+Codec+Platform)
+ */
+ for (i = 0; i < li->link; i++) {
+ int cc = li->num[i].cpus + li->num[i].codecs;
+
+ dai_num += cc;
+ dlc_num += cc + li->num[i].platforms;
+
+ if (!li->num[i].cpus)
+ cnf_num += li->num[i].codecs;
+ }
+
+ dais = devm_kcalloc(dev, dai_num, sizeof(*dais), GFP_KERNEL);
+ dlcs = devm_kcalloc(dev, dlc_num, sizeof(*dlcs), GFP_KERNEL);
+ if (!dais || !dlcs)
+ return -ENOMEM;
+
+ if (cnf_num) {
+ cconf = devm_kcalloc(dev, cnf_num, sizeof(*cconf), GFP_KERNEL);
+ if (!cconf)
+ return -ENOMEM;
+ }
+
+ dev_dbg(dev, "link %d, dais %d, ccnf %d\n",
+ li->link, dai_num, cnf_num);
+
+ priv->dai_props = dai_props;
+ priv->dai_link = dai_link;
+ priv->dais = dais;
+ priv->dlcs = dlcs;
+ priv->codec_conf = cconf;
+
+ card->dai_link = priv->dai_link;
+ card->num_links = li->link;
+ card->codec_conf = cconf;
+ card->num_configs = cnf_num;
+
+ for (i = 0; i < li->link; i++) {
+ if (li->num[i].cpus) {
+ /* Normal CPU */
+ dai_link[i].cpus = dlcs;
+ dai_props[i].num.cpus =
+ dai_link[i].num_cpus = li->num[i].cpus;
+ dai_props[i].cpu_dai = dais;
+
+ dlcs += li->num[i].cpus;
+ dais += li->num[i].cpus;
+ } else {
+ /* DPCM Be's CPU = dummy */
+ dai_link[i].cpus = &asoc_dummy_dlc;
+ dai_props[i].num.cpus =
+ dai_link[i].num_cpus = 1;
+ }
+
+ if (li->num[i].codecs) {
+ /* Normal Codec */
+ dai_link[i].codecs = dlcs;
+ dai_props[i].num.codecs =
+ dai_link[i].num_codecs = li->num[i].codecs;
+ dai_props[i].codec_dai = dais;
+
+ dlcs += li->num[i].codecs;
+ dais += li->num[i].codecs;
+
+ if (!li->num[i].cpus) {
+ /* DPCM Be's Codec */
+ dai_props[i].codec_conf = cconf;
+ cconf += li->num[i].codecs;
+ }
+ } else {
+ /* DPCM Fe's Codec = dummy */
+ dai_link[i].codecs = &asoc_dummy_dlc;
+ dai_props[i].num.codecs =
+ dai_link[i].num_codecs = 1;
+ }
+
+ if (li->num[i].platforms) {
+ /* Have Platform */
+ dai_link[i].platforms = dlcs;
+ dai_props[i].num.platforms =
+ dai_link[i].num_platforms = li->num[i].platforms;
+
+ dlcs += li->num[i].platforms;
+ } else {
+ /* Doesn't have Platform */
+ dai_link[i].platforms = NULL;
+ dai_props[i].num.platforms =
+ dai_link[i].num_platforms = 0;
+ }
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_init_priv);
+
+int asoc_simple_remove(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+ asoc_simple_clean_reference(card);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_remove);
+
+int asoc_graph_card_probe(struct snd_soc_card *card)
+{
+ struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(card);
+ int ret;
+
+ ret = asoc_simple_init_hp(card, &priv->hp_jack, NULL);
+ if (ret < 0)
+ return ret;
+
+ ret = asoc_simple_init_mic(card, &priv->mic_jack, NULL);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+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);
+
+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;
+ 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_property_present(ep, "reg"))
+ return info.id;
+
+ node = of_get_parent(ep);
+ ret = of_property_present(node, "reg");
+ of_node_put(node);
+ if (ret)
+ 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;
+}
+
+int asoc_graph_parse_dai(struct device *dev, struct device_node *ep,
+ struct snd_soc_dai_link_component *dlc, int *is_single_link)
+{
+ struct device_node *node;
+ struct of_phandle_args args = {};
+ struct snd_soc_dai *dai;
+ int ret;
+
+ if (!ep)
+ return 0;
+
+ node = of_graph_get_port_parent(ep);
+
+ /*
+ * Try to find from DAI node
+ */
+ args.np = ep;
+ dai = snd_soc_get_dai_via_args(&args);
+ if (dai) {
+ dlc->dai_name = snd_soc_dai_name_get(dai);
+ dlc->dai_args = snd_soc_copy_dai_args(dev, &args);
+ if (!dlc->dai_args)
+ return -ENOMEM;
+
+ goto parse_dai_end;
+ }
+
+ /* 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_dlc(&args, dlc);
+ if (ret < 0) {
+ of_node_put(node);
+ return ret;
+ }
+
+parse_dai_end:
+ if (is_single_link)
+ *is_single_link = of_graph_get_endpoint_count(node) == 1;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_graph_parse_dai);
+
+/* Module information */
+MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
+MODULE_DESCRIPTION("ALSA SoC Simple Card Utils");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c
new file mode 100644
index 0000000000..274417e39e
--- /dev/null
+++ b/sound/soc/generic/simple-card.c
@@ -0,0 +1,839 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// ASoC simple sound card support
+//
+// Copyright (C) 2012 Renesas Solutions Corp.
+// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+
+#include <linux/clk.h>
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/string.h>
+#include <sound/simple_card.h>
+#include <sound/soc-dai.h>
+#include <sound/soc.h>
+
+#define DPCM_SELECTABLE 1
+
+#define DAI "sound-dai"
+#define CELL "#sound-dai-cells"
+#define PREFIX "simple-audio-card,"
+
+static const struct snd_soc_ops simple_ops = {
+ .startup = asoc_simple_startup,
+ .shutdown = asoc_simple_shutdown,
+ .hw_params = asoc_simple_hw_params,
+};
+
+static int asoc_simple_parse_platform(struct device_node *node,
+ struct snd_soc_dai_link_component *dlc)
+{
+ struct of_phandle_args args;
+ int ret;
+
+ if (!node)
+ return 0;
+
+ /*
+ * Get node via "sound-dai = <&phandle port>"
+ * it will be used as xxx_of_node on soc_bind_dai_link()
+ */
+ ret = of_parse_phandle_with_args(node, DAI, CELL, 0, &args);
+ if (ret)
+ return ret;
+
+ /* dai_name is not required and may not exist for plat component */
+
+ dlc->of_node = args.np;
+
+ return 0;
+}
+
+static int asoc_simple_parse_dai(struct device *dev,
+ struct device_node *node,
+ struct snd_soc_dai_link_component *dlc,
+ int *is_single_link)
+{
+ struct of_phandle_args args;
+ struct snd_soc_dai *dai;
+ int ret;
+
+ if (!node)
+ return 0;
+
+ /*
+ * Get node via "sound-dai = <&phandle port>"
+ * it will be used as xxx_of_node on soc_bind_dai_link()
+ */
+ ret = of_parse_phandle_with_args(node, DAI, CELL, 0, &args);
+ if (ret)
+ return ret;
+
+ /*
+ * Try to find from DAI args
+ */
+ dai = snd_soc_get_dai_via_args(&args);
+ if (dai) {
+ dlc->dai_name = snd_soc_dai_name_get(dai);
+ dlc->dai_args = snd_soc_copy_dai_args(dev, &args);
+ if (!dlc->dai_args)
+ return -ENOMEM;
+
+ goto parse_dai_end;
+ }
+
+ /*
+ * 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_dlc(&args, dlc);
+ if (ret < 0)
+ return ret;
+
+parse_dai_end:
+ if (is_single_link)
+ *is_single_link = !args.args_count;
+
+ return 0;
+}
+
+static void simple_parse_convert(struct device *dev,
+ struct device_node *np,
+ struct asoc_simple_data *adata)
+{
+ struct device_node *top = dev->of_node;
+ struct device_node *node = of_get_parent(np);
+
+ asoc_simple_parse_convert(top, PREFIX, adata);
+ asoc_simple_parse_convert(node, PREFIX, adata);
+ asoc_simple_parse_convert(node, NULL, adata);
+ asoc_simple_parse_convert(np, NULL, adata);
+
+ of_node_put(node);
+}
+
+static void simple_parse_mclk_fs(struct device_node *top,
+ struct device_node *np,
+ struct simple_dai_props *props,
+ char *prefix)
+{
+ struct device_node *node = of_get_parent(np);
+ char prop[128];
+
+ snprintf(prop, sizeof(prop), "%smclk-fs", PREFIX);
+ of_property_read_u32(top, prop, &props->mclk_fs);
+
+ snprintf(prop, sizeof(prop), "%smclk-fs", prefix);
+ of_property_read_u32(node, prop, &props->mclk_fs);
+ of_property_read_u32(np, prop, &props->mclk_fs);
+
+ of_node_put(node);
+}
+
+static int simple_parse_node(struct asoc_simple_priv *priv,
+ struct device_node *np,
+ struct link_info *li,
+ char *prefix,
+ int *cpu)
+{
+ struct device *dev = simple_priv_to_dev(priv);
+ struct device_node *top = dev->of_node;
+ 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, 0);
+ dai = simple_props_to_dai_cpu(dai_props, 0);
+ } else {
+ dlc = asoc_link_to_codec(dai_link, 0);
+ dai = simple_props_to_dai_codec(dai_props, 0);
+ }
+
+ simple_parse_mclk_fs(top, np, dai_props, prefix);
+
+ ret = asoc_simple_parse_dai(dev, np, dlc, cpu);
+ if (ret)
+ return ret;
+
+ ret = asoc_simple_parse_clk(dev, np, dai, dlc);
+ if (ret)
+ return ret;
+
+ ret = asoc_simple_parse_tdm(np, dai);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static int simple_link_init(struct asoc_simple_priv *priv,
+ struct device_node *node,
+ struct device_node *codec,
+ struct link_info *li,
+ char *prefix, char *name)
+{
+ struct device *dev = simple_priv_to_dev(priv);
+ struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link);
+ int ret;
+
+ ret = asoc_simple_parse_daifmt(dev, node, codec,
+ prefix, &dai_link->dai_fmt);
+ if (ret < 0)
+ return 0;
+
+ dai_link->init = asoc_simple_dai_init;
+ dai_link->ops = &simple_ops;
+
+ return asoc_simple_set_dailink_name(dev, dai_link, name);
+}
+
+static int simple_dai_link_of_dpcm(struct asoc_simple_priv *priv,
+ struct device_node *np,
+ struct device_node *codec,
+ struct link_info *li,
+ bool is_top)
+{
+ 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 device_node *top = dev->of_node;
+ struct device_node *node = of_get_parent(np);
+ char *prefix = "";
+ char dai_name[64];
+ int ret;
+
+ dev_dbg(dev, "link_of DPCM (%pOF)\n", np);
+
+ /* For single DAI link & old style of DT node */
+ if (is_top)
+ prefix = PREFIX;
+
+ if (li->cpu) {
+ struct snd_soc_dai_link_component *cpus = asoc_link_to_cpu(dai_link, 0);
+ struct snd_soc_dai_link_component *platforms = asoc_link_to_platform(dai_link, 0);
+ int is_single_links = 0;
+
+ /* Codec is dummy */
+
+ /* FE settings */
+ dai_link->dynamic = 1;
+ dai_link->dpcm_merged_format = 1;
+
+ ret = simple_parse_node(priv, np, li, prefix, &is_single_links);
+ if (ret < 0)
+ goto out_put_node;
+
+ snprintf(dai_name, sizeof(dai_name), "fe.%s", cpus->dai_name);
+
+ asoc_simple_canonicalize_cpu(cpus, is_single_links);
+ asoc_simple_canonicalize_platform(platforms, cpus);
+ } else {
+ struct snd_soc_dai_link_component *codecs = asoc_link_to_codec(dai_link, 0);
+ struct snd_soc_codec_conf *cconf;
+
+ /* CPU is dummy */
+
+ /* BE settings */
+ dai_link->no_pcm = 1;
+ dai_link->be_hw_params_fixup = asoc_simple_be_hw_params_fixup;
+
+ cconf = simple_props_to_codec_conf(dai_props, 0);
+
+ ret = simple_parse_node(priv, np, li, prefix, NULL);
+ if (ret < 0)
+ goto out_put_node;
+
+ snprintf(dai_name, sizeof(dai_name), "be.%s", codecs->dai_name);
+
+ /* check "prefix" from top node */
+ snd_soc_of_parse_node_prefix(top, cconf, codecs->of_node,
+ PREFIX "prefix");
+ snd_soc_of_parse_node_prefix(node, cconf, codecs->of_node,
+ "prefix");
+ snd_soc_of_parse_node_prefix(np, cconf, codecs->of_node,
+ "prefix");
+ }
+
+ simple_parse_convert(dev, np, &dai_props->adata);
+
+ snd_soc_dai_link_set_capabilities(dai_link);
+
+ ret = simple_link_init(priv, node, codec, li, prefix, dai_name);
+
+out_put_node:
+ li->link++;
+
+ of_node_put(node);
+ return ret;
+}
+
+static int simple_dai_link_of(struct asoc_simple_priv *priv,
+ struct device_node *np,
+ struct device_node *codec,
+ struct link_info *li,
+ bool is_top)
+{
+ struct device *dev = simple_priv_to_dev(priv);
+ struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link);
+ 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);
+ struct snd_soc_dai_link_component *platforms = asoc_link_to_platform(dai_link, 0);
+ struct device_node *cpu = NULL;
+ struct device_node *node = NULL;
+ struct device_node *plat = NULL;
+ char dai_name[64];
+ char prop[128];
+ char *prefix = "";
+ int ret, single_cpu = 0;
+
+ cpu = np;
+ node = of_get_parent(np);
+
+ dev_dbg(dev, "link_of (%pOF)\n", node);
+
+ /* For single DAI link & old style of DT node */
+ if (is_top)
+ prefix = PREFIX;
+
+ snprintf(prop, sizeof(prop), "%splat", prefix);
+ plat = of_get_child_by_name(node, prop);
+
+ ret = simple_parse_node(priv, cpu, li, prefix, &single_cpu);
+ if (ret < 0)
+ goto dai_link_of_err;
+
+ ret = simple_parse_node(priv, codec, li, prefix, NULL);
+ if (ret < 0)
+ goto dai_link_of_err;
+
+ ret = asoc_simple_parse_platform(plat, platforms);
+ if (ret < 0)
+ goto dai_link_of_err;
+
+ snprintf(dai_name, sizeof(dai_name),
+ "%s-%s", cpus->dai_name, codecs->dai_name);
+
+ asoc_simple_canonicalize_cpu(cpus, single_cpu);
+ asoc_simple_canonicalize_platform(platforms, cpus);
+
+ ret = simple_link_init(priv, node, codec, li, prefix, dai_name);
+
+dai_link_of_err:
+ of_node_put(plat);
+ of_node_put(node);
+
+ li->link++;
+
+ return ret;
+}
+
+static int __simple_for_each_link(struct asoc_simple_priv *priv,
+ struct link_info *li,
+ int (*func_noml)(struct asoc_simple_priv *priv,
+ struct device_node *np,
+ struct device_node *codec,
+ struct link_info *li, bool is_top),
+ int (*func_dpcm)(struct asoc_simple_priv *priv,
+ struct device_node *np,
+ struct device_node *codec,
+ struct link_info *li, bool is_top))
+{
+ struct device *dev = simple_priv_to_dev(priv);
+ struct device_node *top = dev->of_node;
+ struct device_node *node;
+ struct device_node *add_devs;
+ uintptr_t dpcm_selectable = (uintptr_t)of_device_get_match_data(dev);
+ bool is_top = 0;
+ int ret = 0;
+
+ /* Check if it has dai-link */
+ node = of_get_child_by_name(top, PREFIX "dai-link");
+ if (!node) {
+ node = of_node_get(top);
+ is_top = 1;
+ }
+
+ add_devs = of_get_child_by_name(top, PREFIX "additional-devs");
+
+ /* loop for all dai-link */
+ do {
+ struct asoc_simple_data adata;
+ struct device_node *codec;
+ struct device_node *plat;
+ struct device_node *np;
+ int num = of_get_child_count(node);
+
+ /* Skip additional-devs node */
+ if (node == add_devs) {
+ node = of_get_next_child(top, node);
+ continue;
+ }
+
+ /* get codec */
+ codec = of_get_child_by_name(node, is_top ?
+ PREFIX "codec" : "codec");
+ if (!codec) {
+ ret = -ENODEV;
+ goto error;
+ }
+ /* get platform */
+ plat = of_get_child_by_name(node, is_top ?
+ PREFIX "plat" : "plat");
+
+ /* get convert-xxx property */
+ memset(&adata, 0, sizeof(adata));
+ for_each_child_of_node(node, np) {
+ if (np == add_devs)
+ continue;
+ simple_parse_convert(dev, np, &adata);
+ }
+
+ /* loop for all CPU/Codec node */
+ for_each_child_of_node(node, np) {
+ if (plat == np || add_devs == np)
+ continue;
+ /*
+ * It is DPCM
+ * if it has many CPUs,
+ * or has convert-xxx property
+ */
+ if (dpcm_selectable &&
+ (num > 2 || asoc_simple_is_convert_required(&adata))) {
+ /*
+ * np
+ * |1(CPU)|0(Codec) li->cpu
+ * CPU |Pass |return
+ * Codec |return|Pass
+ */
+ if (li->cpu != (np == codec))
+ ret = func_dpcm(priv, np, codec, li, is_top);
+ /* else normal sound */
+ } else {
+ /*
+ * np
+ * |1(CPU)|0(Codec) li->cpu
+ * CPU |Pass |return
+ * Codec |return|return
+ */
+ if (li->cpu && (np != codec))
+ ret = func_noml(priv, np, codec, li, is_top);
+ }
+
+ if (ret < 0) {
+ of_node_put(codec);
+ of_node_put(plat);
+ of_node_put(np);
+ goto error;
+ }
+ }
+
+ of_node_put(codec);
+ of_node_put(plat);
+ node = of_get_next_child(top, node);
+ } while (!is_top && node);
+
+ error:
+ of_node_put(add_devs);
+ of_node_put(node);
+ return ret;
+}
+
+static int simple_for_each_link(struct asoc_simple_priv *priv,
+ struct link_info *li,
+ int (*func_noml)(struct asoc_simple_priv *priv,
+ struct device_node *np,
+ struct device_node *codec,
+ struct link_info *li, bool is_top),
+ int (*func_dpcm)(struct asoc_simple_priv *priv,
+ struct device_node *np,
+ struct device_node *codec,
+ struct link_info *li, bool is_top))
+{
+ int ret;
+ /*
+ * Detect all CPU first, and Detect all Codec 2nd.
+ *
+ * In Normal sound case, all DAIs are detected
+ * as "CPU-Codec".
+ *
+ * In DPCM sound case,
+ * all CPUs are detected as "CPU-dummy", and
+ * all Codecs are detected as "dummy-Codec".
+ * To avoid random sub-device numbering,
+ * detect "dummy-Codec" in last;
+ */
+ for (li->cpu = 1; li->cpu >= 0; li->cpu--) {
+ ret = __simple_for_each_link(priv, li, func_noml, func_dpcm);
+ if (ret < 0)
+ break;
+ }
+
+ return ret;
+}
+
+static void simple_depopulate_aux(void *data)
+{
+ struct asoc_simple_priv *priv = data;
+
+ of_platform_depopulate(simple_priv_to_dev(priv));
+}
+
+static int simple_populate_aux(struct asoc_simple_priv *priv)
+{
+ struct device *dev = simple_priv_to_dev(priv);
+ struct device_node *node;
+ int ret;
+
+ node = of_get_child_by_name(dev->of_node, PREFIX "additional-devs");
+ if (!node)
+ return 0;
+
+ ret = of_platform_populate(node, NULL, NULL, dev);
+ of_node_put(node);
+ if (ret)
+ return ret;
+
+ return devm_add_action_or_reset(dev, simple_depopulate_aux, priv);
+}
+
+static int simple_parse_of(struct asoc_simple_priv *priv, struct link_info *li)
+{
+ struct snd_soc_card *card = simple_priv_to_card(priv);
+ int ret;
+
+ ret = asoc_simple_parse_widgets(card, PREFIX);
+ if (ret < 0)
+ return ret;
+
+ ret = asoc_simple_parse_routing(card, PREFIX);
+ if (ret < 0)
+ return ret;
+
+ ret = asoc_simple_parse_pin_switches(card, PREFIX);
+ if (ret < 0)
+ return ret;
+
+ /* Single/Muti DAI link(s) & New style of DT node */
+ memset(li, 0, sizeof(*li));
+ ret = simple_for_each_link(priv, li,
+ simple_dai_link_of,
+ simple_dai_link_of_dpcm);
+ if (ret < 0)
+ return ret;
+
+ ret = asoc_simple_parse_card_name(card, PREFIX);
+ if (ret < 0)
+ return ret;
+
+ ret = simple_populate_aux(priv);
+ if (ret < 0)
+ return ret;
+
+ ret = snd_soc_of_parse_aux_devs(card, PREFIX "aux-devs");
+
+ return ret;
+}
+
+static int simple_count_noml(struct asoc_simple_priv *priv,
+ struct device_node *np,
+ struct device_node *codec,
+ struct link_info *li, bool is_top)
+{
+ if (li->link >= SNDRV_MAX_LINKS) {
+ struct device *dev = simple_priv_to_dev(priv);
+
+ dev_err(dev, "too many links\n");
+ return -EINVAL;
+ }
+
+ /*
+ * DON'T REMOVE platforms
+ *
+ * Some CPU might be using soc-generic-dmaengine-pcm. This means CPU and Platform
+ * are different Component, but are sharing same component->dev.
+ * Simple Card had been supported it without special Platform selection.
+ * We need platforms here.
+ *
+ * In case of no Platform, it will be Platform == CPU, but Platform will be
+ * ignored by snd_soc_rtd_add_component().
+ *
+ * see
+ * simple-card-utils.c :: asoc_simple_canonicalize_platform()
+ */
+ li->num[li->link].cpus = 1;
+ li->num[li->link].platforms = 1;
+
+ li->num[li->link].codecs = 1;
+
+ li->link += 1;
+
+ return 0;
+}
+
+static int simple_count_dpcm(struct asoc_simple_priv *priv,
+ struct device_node *np,
+ struct device_node *codec,
+ struct link_info *li, bool is_top)
+{
+ if (li->link >= SNDRV_MAX_LINKS) {
+ struct device *dev = simple_priv_to_dev(priv);
+
+ dev_err(dev, "too many links\n");
+ return -EINVAL;
+ }
+
+ if (li->cpu) {
+ /*
+ * DON'T REMOVE platforms
+ * see
+ * simple_count_noml()
+ */
+ li->num[li->link].cpus = 1;
+ li->num[li->link].platforms = 1;
+
+ li->link++; /* CPU-dummy */
+ } else {
+ li->num[li->link].codecs = 1;
+
+ li->link++; /* dummy-Codec */
+ }
+
+ return 0;
+}
+
+static int simple_get_dais_count(struct asoc_simple_priv *priv,
+ struct link_info *li)
+{
+ struct device *dev = simple_priv_to_dev(priv);
+ struct device_node *top = dev->of_node;
+
+ /*
+ * link_num : number of links.
+ * CPU-Codec / CPU-dummy / dummy-Codec
+ * dais_num : number of DAIs
+ * ccnf_num : number of codec_conf
+ * same number for "dummy-Codec"
+ *
+ * ex1)
+ * CPU0 --- Codec0 link : 5
+ * CPU1 --- Codec1 dais : 7
+ * CPU2 -/ ccnf : 1
+ * CPU3 --- Codec2
+ *
+ * => 5 links = 2xCPU-Codec + 2xCPU-dummy + 1xdummy-Codec
+ * => 7 DAIs = 4xCPU + 3xCodec
+ * => 1 ccnf = 1xdummy-Codec
+ *
+ * ex2)
+ * CPU0 --- Codec0 link : 5
+ * CPU1 --- Codec1 dais : 6
+ * CPU2 -/ ccnf : 1
+ * CPU3 -/
+ *
+ * => 5 links = 1xCPU-Codec + 3xCPU-dummy + 1xdummy-Codec
+ * => 6 DAIs = 4xCPU + 2xCodec
+ * => 1 ccnf = 1xdummy-Codec
+ *
+ * ex3)
+ * CPU0 --- Codec0 link : 6
+ * CPU1 -/ dais : 6
+ * CPU2 --- Codec1 ccnf : 2
+ * CPU3 -/
+ *
+ * => 6 links = 0xCPU-Codec + 4xCPU-dummy + 2xdummy-Codec
+ * => 6 DAIs = 4xCPU + 2xCodec
+ * => 2 ccnf = 2xdummy-Codec
+ *
+ * ex4)
+ * CPU0 --- Codec0 (convert-rate) link : 3
+ * CPU1 --- Codec1 dais : 4
+ * ccnf : 1
+ *
+ * => 3 links = 1xCPU-Codec + 1xCPU-dummy + 1xdummy-Codec
+ * => 4 DAIs = 2xCPU + 2xCodec
+ * => 1 ccnf = 1xdummy-Codec
+ */
+ if (!top) {
+ li->num[0].cpus = 1;
+ li->num[0].codecs = 1;
+ li->num[0].platforms = 1;
+
+ li->link = 1;
+ return 0;
+ }
+
+ return simple_for_each_link(priv, li,
+ simple_count_noml,
+ simple_count_dpcm);
+}
+
+static int simple_soc_probe(struct snd_soc_card *card)
+{
+ struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(card);
+ int ret;
+
+ ret = asoc_simple_init_hp(card, &priv->hp_jack, PREFIX);
+ if (ret < 0)
+ return ret;
+
+ ret = asoc_simple_init_mic(card, &priv->mic_jack, PREFIX);
+ if (ret < 0)
+ return ret;
+
+ ret = asoc_simple_init_aux_jacks(priv, PREFIX);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int asoc_simple_probe(struct platform_device *pdev)
+{
+ struct asoc_simple_priv *priv;
+ struct device *dev = &pdev->dev;
+ struct device_node *np = dev->of_node;
+ struct snd_soc_card *card;
+ struct link_info *li;
+ int ret;
+
+ /* Allocate the private data and the DAI link array */
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ card = simple_priv_to_card(priv);
+ card->owner = THIS_MODULE;
+ card->dev = dev;
+ card->probe = simple_soc_probe;
+ card->driver_name = "simple-card";
+
+ li = devm_kzalloc(dev, sizeof(*li), GFP_KERNEL);
+ if (!li)
+ return -ENOMEM;
+
+ ret = simple_get_dais_count(priv, li);
+ if (ret < 0)
+ return ret;
+
+ if (!li->link)
+ return -EINVAL;
+
+ ret = asoc_simple_init_priv(priv, li);
+ if (ret < 0)
+ return ret;
+
+ if (np && of_device_is_available(np)) {
+
+ ret = simple_parse_of(priv, li);
+ if (ret < 0) {
+ dev_err_probe(dev, ret, "parse error\n");
+ goto err;
+ }
+
+ } else {
+ struct asoc_simple_card_info *cinfo;
+ struct snd_soc_dai_link_component *cpus;
+ struct snd_soc_dai_link_component *codecs;
+ struct snd_soc_dai_link_component *platform;
+ struct snd_soc_dai_link *dai_link = priv->dai_link;
+ struct simple_dai_props *dai_props = priv->dai_props;
+
+ ret = -EINVAL;
+
+ cinfo = dev->platform_data;
+ if (!cinfo) {
+ dev_err(dev, "no info for asoc-simple-card\n");
+ goto err;
+ }
+
+ if (!cinfo->name ||
+ !cinfo->codec_dai.name ||
+ !cinfo->codec ||
+ !cinfo->platform ||
+ !cinfo->cpu_dai.name) {
+ dev_err(dev, "insufficient asoc_simple_card_info settings\n");
+ goto err;
+ }
+
+ cpus = dai_link->cpus;
+ cpus->dai_name = cinfo->cpu_dai.name;
+
+ codecs = dai_link->codecs;
+ codecs->name = cinfo->codec;
+ codecs->dai_name = cinfo->codec_dai.name;
+
+ platform = dai_link->platforms;
+ platform->name = cinfo->platform;
+
+ card->name = (cinfo->card) ? cinfo->card : cinfo->name;
+ dai_link->name = cinfo->name;
+ dai_link->stream_name = cinfo->name;
+ dai_link->dai_fmt = cinfo->daifmt;
+ dai_link->init = asoc_simple_dai_init;
+ memcpy(dai_props->cpu_dai, &cinfo->cpu_dai,
+ sizeof(*dai_props->cpu_dai));
+ memcpy(dai_props->codec_dai, &cinfo->codec_dai,
+ sizeof(*dai_props->codec_dai));
+ }
+
+ snd_soc_card_set_drvdata(card, priv);
+
+ asoc_simple_debug_info(priv);
+
+ ret = devm_snd_soc_register_card(dev, card);
+ if (ret < 0)
+ goto err;
+
+ devm_kfree(dev, li);
+ return 0;
+err:
+ asoc_simple_clean_reference(card);
+
+ return ret;
+}
+
+static const struct of_device_id simple_of_match[] = {
+ { .compatible = "simple-audio-card", },
+ { .compatible = "simple-scu-audio-card",
+ .data = (void *)DPCM_SELECTABLE },
+ {},
+};
+MODULE_DEVICE_TABLE(of, simple_of_match);
+
+static struct platform_driver asoc_simple_card = {
+ .driver = {
+ .name = "asoc-simple-card",
+ .pm = &snd_soc_pm_ops,
+ .of_match_table = simple_of_match,
+ },
+ .probe = asoc_simple_probe,
+ .remove = asoc_simple_remove,
+};
+
+module_platform_driver(asoc_simple_card);
+
+MODULE_ALIAS("platform:asoc-simple-card");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("ASoC Simple Sound Card");
+MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
diff --git a/sound/soc/generic/test-component.c b/sound/soc/generic/test-component.c
new file mode 100644
index 0000000000..e10e5bf284
--- /dev/null
+++ b/sound/soc/generic/test-component.c
@@ -0,0 +1,656 @@
+// 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_CLOCK_PROVIDER_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_BP_FP:
+ str = "clk provider, frame provider";
+ break;
+ case SND_SOC_DAIFMT_BC_FP:
+ str = "clk consumer, frame provider";
+ break;
+ case SND_SOC_DAIFMT_BP_FC:
+ str = "clk provider, frame consumer";
+ break;
+ case SND_SOC_DAIFMT_BC_FC:
+ 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_BP_FP
+ * SND_SOC_POSSIBLE_DAIFMT_BC_FP
+ * SND_SOC_POSSIBLE_DAIFMT_BP_FC
+ * SND_SOC_POSSIBLE_DAIFMT_BC_FC
+ */
+ 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-verbose", .data = (void *)&test_cpu_vv, },
+ { .compatible = "test-cpu-verbose-dai", .data = (void *)&test_cpu_nv, },
+ { .compatible = "test-cpu-verbose-component", .data = (void *)&test_cpu_vn, },
+ { .compatible = "test-codec", .data = (void *)&test_codec, },
+ { .compatible = "test-codec-verbose", .data = (void *)&test_codec_vv, },
+ { .compatible = "test-codec-verbose-dai", .data = (void *)&test_codec_nv, },
+ { .compatible = "test-codec-verbose-component", .data = (void *)&test_codec_vn, },
+ {},
+};
+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 test_adata *adata = of_device_get_match_data(&pdev->dev);
+ 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 || !adata)
+ 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;
+ cdriv->legacy_dai_naming = 1;
+ } else {
+ cdriv->name = "test_codec";
+ cdriv->idle_bias_on = 1;
+ cdriv->endianness = 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 void test_driver_remove(struct platform_device *pdev)
+{
+ mile_stone_x(&pdev->dev);
+}
+
+static struct platform_driver test_driver = {
+ .driver = {
+ .name = "test-component",
+ .of_match_table = test_of_match,
+ },
+ .probe = test_driver_probe,
+ .remove_new = 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");
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-09 09:20:31 +0000