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-rw-r--r--sound/soc/generic/Kconfig20
-rw-r--r--sound/soc/generic/Makefile6
-rw-r--r--sound/soc/generic/audio-graph-card2-custom-sample.c183
-rw-r--r--sound/soc/generic/audio-graph-card2-custom-sample.dtsi227
-rw-r--r--sound/soc/generic/audio-graph-card2.c1281
-rw-r--r--sound/soc/generic/simple-card-utils.c46
-rw-r--r--sound/soc/generic/test-component.c659
7 files changed, 2421 insertions, 1 deletions
diff --git a/sound/soc/generic/Kconfig b/sound/soc/generic/Kconfig
index 4cafcf0e2bbf..b6df4e26bc4a 100644
--- a/sound/soc/generic/Kconfig
+++ b/sound/soc/generic/Kconfig
@@ -17,3 +17,23 @@ config SND_AUDIO_GRAPH_CARD
This option enables generic simple sound card support
with OF-graph DT bindings.
It also support DPCM of multi CPU single Codec ststem.
+
+config SND_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
index 21c29e5e0671..084862156506 100644
--- a/sound/soc/generic/Makefile
+++ b/sound/soc/generic/Makefile
@@ -2,7 +2,13 @@
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-card2-custom-sample.c b/sound/soc/generic/audio-graph-card2-custom-sample.c
new file mode 100644
index 000000000000..4a2c743e286c
--- /dev/null
+++ b/sound/soc/generic/audio-graph-card2-custom-sample.c
@@ -0,0 +1,183 @@
+// 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 */
+
+ /* 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 000000000000..8eee7b821ff7
--- /dev/null
+++ b/sound/soc/generic/audio-graph-card2-custom-sample.dtsi
@@ -0,0 +1,227 @@
+// 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
+ */
+/ {
+ /*
+ * @ : used at links
+ *
+ * [Normal]
+ * cpu0 <-@-----------------> codec0
+ *
+ * [Multi-CPU/Codec]
+ * +-+ +-+
+ * cpu1 <--| |<-@--------->| |-> codec1
+ * cpu2 <--| | | |-> codec2
+ * +-+ +-+
+ *
+ * [DPCM]
+ * FE BE
+ * ****
+ * cpu3 <-@--* *--@-> codec3
+ * cpu4 <-@--* *
+ * ****
+ *
+ * [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 = <&cpu0 /* normal: cpu side only */
+ &mcpu0 /* multi: cpu side only */
+ &fe00 &fe01 &be0 /* dpcm: both FE / BE */
+ &fe10 &fe11 &be1 /* dpcm-m: both FE / BE */
+ &c2c /* c2c: cpu side only */
+ &c2c_m /* c2c: cpu side only */
+ >;
+
+ multi {
+ ports@0 {
+ mcpu0: port@0 { mcpu0_ep: endpoint { remote-endpoint = <&mcodec0_ep>; }; };
+ port@1 { mcpu1_ep: endpoint { remote-endpoint = <&cpu1_ep>; }; };
+ port@2 { mcpu2_ep: endpoint { remote-endpoint = <&cpu2_ep>; }; };
+ };
+ ports@1 {
+ port@0 { mcodec0_ep: endpoint { remote-endpoint = <&mcpu0_ep>; }; };
+ port@1 { mcodec1_ep: endpoint { remote-endpoint = <&codec1_ep>; }; };
+ port@2 { mcodec2_ep: endpoint { remote-endpoint = <&codec2_ep>; }; };
+ };
+ ports@2 {
+ port@0 { mbe_ep: endpoint { remote-endpoint = <&be10_ep>; }; };
+ port@1 { mbe1_ep: endpoint { remote-endpoint = <&codec4_ep>; }; };
+ port@2 { mbe2_ep: endpoint { remote-endpoint = <&codec5_ep>; }; };
+ };
+ ports@3 {
+ port@0 { mc2c0_ep: endpoint { remote-endpoint = <&c2cmf_ep>; }; };
+ port@1 { mc2c00_ep: endpoint { remote-endpoint = <&codec8_ep>; }; };
+ port@2 { mc2c01_ep: endpoint { remote-endpoint = <&codec9_ep>; }; };
+ };
+ ports@4 {
+ port@0 { mc2c1_ep: endpoint { remote-endpoint = <&c2cmb_ep>; }; };
+ port@1 { mc2c10_ep: endpoint { remote-endpoint = <&codec10_ep>; }; };
+ port@2 { mc2c11_ep: endpoint { remote-endpoint = <&codec11_ep>; }; };
+ };
+ };
+
+ dpcm {
+ /* FE */
+ ports@0 {
+ fe00: port@0 { fe00_ep: endpoint { remote-endpoint = <&cpu3_ep>; }; };
+ fe01: port@1 { fe01_ep: endpoint { remote-endpoint = <&cpu4_ep>; }; };
+ fe10: port@2 { fe10_ep: endpoint { remote-endpoint = <&cpu5_ep>; }; };
+ fe11: port@3 { fe11_ep: endpoint { remote-endpoint = <&cpu6_ep>; }; };
+ };
+ /* BE */
+ ports@1 {
+ be0: port@0 { be00_ep: endpoint { remote-endpoint = <&codec3_ep>; }; };
+ be1: port@1 { be10_ep: endpoint { remote-endpoint = <&mbe_ep>; }; };
+ };
+ };
+
+ codec2codec {
+ ports@0 {
+ rate = <48000>;
+ c2c: port@0 { c2cf_ep: endpoint { remote-endpoint = <&codec6_ep>; }; };
+ port@1 { c2cb_ep: endpoint { remote-endpoint = <&codec7_ep>; }; };
+ };
+ ports@1 {
+ rate = <48000>;
+ c2c_m: port@0 { c2cmf_ep: endpoint { remote-endpoint = <&mc2c0_ep>; }; };
+ port@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 {
+ bitclock-master;
+ frame-master;
+ cpu0: port@0 { cpu0_ep: endpoint { remote-endpoint = <&codec0_ep>; }; };
+ port@1 { cpu1_ep: endpoint { remote-endpoint = <&mcpu1_ep>; }; };
+ port@2 { cpu2_ep: endpoint { remote-endpoint = <&mcpu2_ep>; }; };
+ port@3 { cpu3_ep: endpoint { remote-endpoint = <&fe00_ep>; }; };
+ port@4 { cpu4_ep: endpoint { remote-endpoint = <&fe01_ep>; }; };
+ port@5 { cpu5_ep: endpoint { remote-endpoint = <&fe10_ep>; }; };
+ port@6 { cpu6_ep: endpoint { remote-endpoint = <&fe11_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 {
+ /*
+ * prefix can be added to *component*,
+ * see audio-graph-card2::routing
+ */
+ prefix = "TC";
+
+ port@0 { codec0_ep: endpoint { remote-endpoint = <&cpu0_ep>; }; };
+ port@1 { codec1_ep: endpoint { remote-endpoint = <&mcodec1_ep>; }; };
+ port@2 { codec2_ep: endpoint { remote-endpoint = <&mcodec2_ep>; }; };
+ port@3 { codec3_ep: endpoint { remote-endpoint = <&be00_ep>; }; };
+ port@4 { codec4_ep: endpoint { remote-endpoint = <&mbe1_ep>; }; };
+ port@5 { codec5_ep: endpoint { remote-endpoint = <&mbe2_ep>; }; };
+ port@6 { bitclock-master;
+ frame-master;
+ codec6_ep: endpoint { remote-endpoint = <&c2cf_ep>; }; };
+ port@7 { codec7_ep: endpoint { remote-endpoint = <&c2cb_ep>; }; };
+ port@8 { bitclock-master;
+ frame-master;
+ codec8_ep: endpoint { remote-endpoint = <&mc2c00_ep>; }; };
+ port@9 { codec9_ep: endpoint { remote-endpoint = <&mc2c01_ep>; }; };
+ port@10 { codec10_ep: endpoint { remote-endpoint = <&mc2c10_ep>; }; };
+ port@11 { codec11_ep: endpoint { remote-endpoint = <&mc2c11_ep>; }; };
+ };
+ };
+};
diff --git a/sound/soc/generic/audio-graph-card2.c b/sound/soc/generic/audio-graph-card2.c
new file mode 100644
index 000000000000..b6049bcfb771
--- /dev/null
+++ b/sound/soc/generic/audio-graph-card2.c
@@ -0,0 +1,1281 @@
+// 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().
+
+ ************************************
+ 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@1 { mcpu2_ep: endpoint { remote-endpoint = <&cpu2_ep>; }; };
+ };
+ ports@1 {
+(X) port@0 { mcodec0_ep: endpoint { remote-endpoint = <&mcpu0_ep>; }; };
+(y) port@0 { mcodec1_ep: endpoint { remote-endpoint = <&codec1_ep>; }; };
+(y) port@1 { mcodec2_ep: endpoint { remote-endpoint = <&codec2_ep>; }; };
+ };
+ };
+ };
+
+ CPU {
+ ports {
+ bitclock-master;
+ frame-master;
+ port@0 { cpu1_ep: endpoint { remote-endpoint = <&mcpu1_ep>; }; };
+ port@1 { cpu2_ep: endpoint { remote-endpoint = <&mcpu2_ep>; }; };
+ };
+ };
+
+ Codec {
+ ports {
+ port@0 { codec1_ep: endpoint { remote-endpoint = <&mcodec1_ep>; }; };
+ port@1 { codec2_ep: endpoint { remote-endpoint = <&mcodec2_ep>; }; };
+ };
+ };
+
+ ************************************
+ 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;
+
+ /*
+ * target {
+ * ports {
+ * => lnk: port@0 { ... };
+ * port@1 { ... };
+ * };
+ * };
+ */
+ np = of_get_parent(lnk);
+ if (of_node_name_eq(np, "ports"))
+ np = of_get_parent(np);
+
+ if (of_node_name_eq(np, GRAPH_NODENAME_MULTI))
+ return GRAPH_MULTI;
+
+ if (of_node_name_eq(np, GRAPH_NODENAME_DPCM))
+ return GRAPH_DPCM;
+
+ if (of_node_name_eq(np, GRAPH_NODENAME_C2C))
+ return GRAPH_C2C;
+
+ return GRAPH_NORMAL;
+}
+
+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 int graph_get_dai_id(struct device_node *ep)
+{
+ struct device_node *node;
+ struct device_node *endpoint;
+ struct of_endpoint info;
+ int i, id;
+ const u32 *reg;
+ int ret;
+
+ /* use driver specified DAI ID if exist */
+ ret = snd_soc_get_dai_id(ep);
+ if (ret != -ENOTSUPP)
+ return ret;
+
+ /* use endpoint/port reg if exist */
+ ret = of_graph_parse_endpoint(ep, &info);
+ if (ret == 0) {
+ /*
+ * Because it will count port/endpoint if it doesn't have "reg".
+ * But, we can't judge whether it has "no reg", or "reg = <0>"
+ * only of_graph_parse_endpoint().
+ * We need to check "reg" property
+ */
+ if (of_get_property(ep, "reg", NULL))
+ return info.id;
+
+ node = of_get_parent(ep);
+ reg = of_get_property(node, "reg", NULL);
+ of_node_put(node);
+ if (reg)
+ return info.port;
+ }
+ node = of_graph_get_port_parent(ep);
+
+ /*
+ * Non HDMI sound case, counting port/endpoint on its DT
+ * is enough. Let's count it.
+ */
+ i = 0;
+ id = -1;
+ for_each_endpoint_of_node(node, endpoint) {
+ if (endpoint == ep)
+ id = i;
+ i++;
+ }
+
+ of_node_put(node);
+
+ if (id < 0)
+ return -ENODEV;
+
+ return id;
+}
+
+static int asoc_simple_parse_dai(struct device_node *ep,
+ struct snd_soc_dai_link_component *dlc,
+ int *is_single_link)
+{
+ struct device_node *node;
+ struct of_phandle_args args;
+ int ret;
+
+ if (!ep)
+ return 0;
+
+ node = of_graph_get_port_parent(ep);
+
+ /* Get dai->name */
+ args.np = node;
+ args.args[0] = graph_get_dai_id(ep);
+ args.args_count = (of_graph_get_endpoint_count(node) > 1);
+
+ /*
+ * FIXME
+ *
+ * Here, dlc->dai_name is pointer to CPU/Codec DAI name.
+ * If user unbinded CPU or Codec driver, but not for Sound Card,
+ * dlc->dai_name is keeping unbinded CPU or Codec
+ * driver's pointer.
+ *
+ * If user re-bind CPU or Codec driver again, ALSA SoC will try
+ * to rebind Card via snd_soc_try_rebind_card(), but because of
+ * above reason, it might can't bind Sound Card.
+ * Because Sound Card is pointing to released dai_name pointer.
+ *
+ * To avoid this rebind Card issue,
+ * 1) It needs to alloc memory to keep dai_name eventhough
+ * CPU or Codec driver was unbinded, or
+ * 2) user need to rebind Sound Card everytime
+ * if he unbinded CPU or Codec.
+ */
+ ret = snd_soc_get_dai_name(&args, &dlc->dai_name);
+ if (ret < 0)
+ return ret;
+
+ dlc->of_node = node;
+
+ if (is_single_link)
+ *is_single_link = of_graph_get_endpoint_count(node) == 1;
+
+ return 0;
+}
+
+static void graph_parse_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_simple_parse_dai(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_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_fliped(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(rep, dai_props);
+
+ 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 simple_dai_props *dai_props = simple_priv_to_props(priv, li->link);
+ struct snd_soc_pcm_stream *c2c_conf = dai_props->c2c_conf;
+ struct device_node *port0, *port1, *ports;
+ struct device_node *codec0_port, *codec1_port;
+ struct device_node *ep0, *ep1;
+ u32 val;
+ 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);
+
+ if (!of_get_property(ports, "rate", &val)) {
+ struct device *dev = simple_priv_to_dev(priv);
+
+ dev_err(dev, "Codec2Codec needs rate settings\n");
+ goto err1;
+ }
+
+ c2c_conf->formats = SNDRV_PCM_FMTBIT_S32_LE; /* update ME */
+ c2c_conf->rate_min =
+ c2c_conf->rate_max = val;
+ c2c_conf->channels_min =
+ c2c_conf->channels_max = 2; /* update ME */
+ dai_link->params = c2c_conf;
+
+ 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 { .. }; };
+ * };
+ */
+ 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)) {
+ 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 { ... }; };
+ * };
+ * };
+ */
+ li->num[li->link].cpus =
+ li->num[li->link].platforms = graph_counter(codec0);
+ li->num[li->link].codecs = graph_counter(codec1);
+ li->num[li->link].c2c = 1;
+
+ 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;
+
+ dev_warn(dev, "Audio Graph Card2 is still under Experimental stage\n");
+
+ li = devm_kzalloc(dev, sizeof(*li), GFP_KERNEL);
+ if (!li)
+ return -ENOMEM;
+
+ card->probe = asoc_graph_card_probe;
+ card->owner = THIS_MODULE;
+ card->dev = dev;
+
+ if ((hooks) && (hooks)->hook_pre) {
+ ret = (hooks)->hook_pre(priv);
+ if (ret < 0)
+ goto err;
+ }
+
+ ret = graph_for_each_link(priv, hooks, li, graph_count);
+ if (!li->link)
+ ret = -EINVAL;
+ if (ret < 0)
+ goto err;
+
+ ret = asoc_simple_init_priv(priv, li);
+ if (ret < 0)
+ goto err;
+
+ priv->pa_gpio = devm_gpiod_get_optional(dev, "pa", GPIOD_OUT_LOW);
+ if (IS_ERR(priv->pa_gpio)) {
+ ret = PTR_ERR(priv->pa_gpio);
+ dev_err(dev, "failed to get amplifier gpio: %d\n", ret);
+ goto err;
+ }
+
+ ret = asoc_simple_parse_widgets(card, NULL);
+ if (ret < 0)
+ goto err;
+
+ ret = asoc_simple_parse_routing(card, NULL);
+ if (ret < 0)
+ goto err;
+
+ memset(li, 0, sizeof(*li));
+ ret = graph_for_each_link(priv, hooks, li, graph_link);
+ if (ret < 0)
+ goto err;
+
+ ret = asoc_simple_parse_card_name(card, NULL);
+ if (ret < 0)
+ goto err;
+
+ snd_soc_card_set_drvdata(card, priv);
+
+ if ((hooks) && (hooks)->hook_post) {
+ ret = (hooks)->hook_post(priv);
+ if (ret < 0)
+ goto err;
+ }
+
+ asoc_simple_debug_info(priv);
+
+ ret = devm_snd_soc_register_card(dev, card);
+err:
+ devm_kfree(dev, li);
+
+ if ((ret < 0) && (ret != -EPROBE_DEFER))
+ dev_err(dev, "parse error %d\n", ret);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(audio_graph2_parse_of);
+
+static int graph_probe(struct platform_device *pdev)
+{
+ struct asoc_simple_priv *priv;
+ struct device *dev = &pdev->dev;
+
+ /* Allocate the private data and the DAI link array */
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ return audio_graph2_parse_of(priv, dev, NULL);
+}
+
+static const struct of_device_id graph_of_match[] = {
+ { .compatible = "audio-graph-card2", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, graph_of_match);
+
+static struct platform_driver graph_card = {
+ .driver = {
+ .name = "asoc-audio-graph-card2",
+ .pm = &snd_soc_pm_ops,
+ .of_match_table = graph_of_match,
+ },
+ .probe = graph_probe,
+ .remove = asoc_simple_remove,
+};
+module_platform_driver(graph_card);
+
+MODULE_ALIAS("platform:asoc-audio-graph-card2");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("ASoC Audio Graph 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
index 10c63b73900c..39ba70088127 100644
--- a/sound/soc/generic/simple-card-utils.c
+++ b/sound/soc/generic/simple-card-utils.c
@@ -619,7 +619,8 @@ int asoc_simple_init_priv(struct asoc_simple_priv *priv,
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;
+ struct snd_soc_pcm_stream *c2c_conf = NULL;
+ int i, dai_num = 0, dlc_num = 0, cnf_num = 0, c2c_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);
@@ -638,6 +639,8 @@ int asoc_simple_init_priv(struct asoc_simple_priv *priv,
if (!li->num[i].cpus)
cnf_num += li->num[i].codecs;
+
+ c2c_num += li->num[i].c2c;
}
dais = devm_kcalloc(dev, dai_num, sizeof(*dais), GFP_KERNEL);
@@ -651,6 +654,12 @@ int asoc_simple_init_priv(struct asoc_simple_priv *priv,
return -ENOMEM;
}
+ if (c2c_num) {
+ c2c_conf = devm_kcalloc(dev, c2c_num, sizeof(*c2c_conf), GFP_KERNEL);
+ if (!c2c_conf)
+ return -ENOMEM;
+ }
+
dev_dbg(dev, "link %d, dais %d, ccnf %d\n",
li->link, dai_num, cnf_num);
@@ -664,6 +673,7 @@ int asoc_simple_init_priv(struct asoc_simple_priv *priv,
priv->dais = dais;
priv->dlcs = dlcs;
priv->codec_conf = cconf;
+ priv->c2c_conf = c2c_conf;
card->dai_link = priv->dai_link;
card->num_links = li->link;
@@ -681,6 +691,12 @@ int asoc_simple_init_priv(struct asoc_simple_priv *priv,
dlcs += li->num[i].cpus;
dais += li->num[i].cpus;
+
+ if (li->num[i].c2c) {
+ /* Codec2Codec */
+ dai_props[i].c2c_conf = c2c_conf;
+ c2c_conf += li->num[i].c2c;
+ }
} else {
/* DPCM Be's CPU = dummy */
dai_props[i].cpus =
@@ -759,6 +775,34 @@ int asoc_graph_card_probe(struct snd_soc_card *card)
}
EXPORT_SYMBOL_GPL(asoc_graph_card_probe);
+int asoc_graph_is_ports0(struct device_node *np)
+{
+ struct device_node *port, *ports, *ports0, *top;
+ int ret;
+
+ /* np is "endpoint" or "port" */
+ if (of_node_name_eq(np, "endpoint")) {
+ port = of_get_parent(np);
+ } else {
+ port = np;
+ of_node_get(port);
+ }
+
+ ports = of_get_parent(port);
+ top = of_get_parent(ports);
+ ports0 = of_get_child_by_name(top, "ports");
+
+ ret = ports0 == ports;
+
+ of_node_put(port);
+ of_node_put(ports);
+ of_node_put(ports0);
+ of_node_put(top);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(asoc_graph_is_ports0);
+
/* Module information */
MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
MODULE_DESCRIPTION("ALSA SoC Simple Card Utils");
diff --git a/sound/soc/generic/test-component.c b/sound/soc/generic/test-component.c
new file mode 100644
index 000000000000..85385a771d80
--- /dev/null
+++ b/sound/soc/generic/test-component.c
@@ -0,0 +1,659 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// test-component.c -- Test Audio Component driver
+//
+// Copyright (C) 2020 Renesas Electronics Corporation
+// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+
+#include <linux/slab.h>
+#include <linux/of_device.h>
+#include <linux/of_graph.h>
+#include <linux/module.h>
+#include <linux/workqueue.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+
+#define TEST_NAME_LEN 32
+struct test_dai_name {
+ char name[TEST_NAME_LEN];
+ char name_playback[TEST_NAME_LEN];
+ char name_capture[TEST_NAME_LEN];
+};
+
+struct test_priv {
+ struct device *dev;
+ struct snd_pcm_substream *substream;
+ struct delayed_work dwork;
+ struct snd_soc_component_driver *component_driver;
+ struct snd_soc_dai_driver *dai_driver;
+ struct test_dai_name *name;
+};
+
+struct test_adata {
+ u32 is_cpu:1;
+ u32 cmp_v:1;
+ u32 dai_v:1;
+};
+
+#define mile_stone(d) dev_info((d)->dev, "%s() : %s", __func__, (d)->driver->name)
+#define mile_stone_x(dev) dev_info(dev, "%s()", __func__)
+
+static int test_dai_set_sysclk(struct snd_soc_dai *dai,
+ int clk_id, unsigned int freq, int dir)
+{
+ mile_stone(dai);
+
+ return 0;
+}
+
+static int test_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source,
+ unsigned int freq_in, unsigned int freq_out)
+{
+ mile_stone(dai);
+
+ return 0;
+}
+
+static int test_dai_set_clkdiv(struct snd_soc_dai *dai, int div_id, int div)
+{
+ mile_stone(dai);
+
+ return 0;
+}
+
+static int test_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+ unsigned int format = fmt & SND_SOC_DAIFMT_FORMAT_MASK;
+ unsigned int clock = fmt & SND_SOC_DAIFMT_CLOCK_MASK;
+ unsigned int inv = fmt & SND_SOC_DAIFMT_INV_MASK;
+ unsigned int master = fmt & SND_SOC_DAIFMT_MASTER_MASK;
+ char *str;
+
+ dev_info(dai->dev, "name : %s", dai->name);
+
+ str = "unknown";
+ switch (format) {
+ case SND_SOC_DAIFMT_I2S:
+ str = "i2s";
+ break;
+ case SND_SOC_DAIFMT_RIGHT_J:
+ str = "right_j";
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ str = "left_j";
+ break;
+ case SND_SOC_DAIFMT_DSP_A:
+ str = "dsp_a";
+ break;
+ case SND_SOC_DAIFMT_DSP_B:
+ str = "dsp_b";
+ break;
+ case SND_SOC_DAIFMT_AC97:
+ str = "ac97";
+ break;
+ case SND_SOC_DAIFMT_PDM:
+ str = "pdm";
+ break;
+ }
+ dev_info(dai->dev, "format : %s", str);
+
+ if (clock == SND_SOC_DAIFMT_CONT)
+ str = "continuous";
+ else
+ str = "gated";
+ dev_info(dai->dev, "clock : %s", str);
+
+ str = "unknown";
+ switch (master) {
+ case SND_SOC_DAIFMT_CBP_CFP:
+ str = "clk provider, frame provider";
+ break;
+ case SND_SOC_DAIFMT_CBC_CFP:
+ str = "clk consumer, frame provider";
+ break;
+ case SND_SOC_DAIFMT_CBP_CFC:
+ str = "clk provider, frame consumer";
+ break;
+ case SND_SOC_DAIFMT_CBC_CFC:
+ str = "clk consumer, frame consumer";
+ break;
+ }
+ dev_info(dai->dev, "clock : codec is %s", str);
+
+ str = "unknown";
+ switch (inv) {
+ case SND_SOC_DAIFMT_NB_NF:
+ str = "normal bit, normal frame";
+ break;
+ case SND_SOC_DAIFMT_NB_IF:
+ str = "normal bit, invert frame";
+ break;
+ case SND_SOC_DAIFMT_IB_NF:
+ str = "invert bit, normal frame";
+ break;
+ case SND_SOC_DAIFMT_IB_IF:
+ str = "invert bit, invert frame";
+ break;
+ }
+ dev_info(dai->dev, "signal : %s", str);
+
+ return 0;
+}
+
+static int test_dai_mute_stream(struct snd_soc_dai *dai, int mute, int stream)
+{
+ mile_stone(dai);
+
+ return 0;
+}
+
+static int test_dai_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
+{
+ mile_stone(dai);
+
+ return 0;
+}
+
+static void test_dai_shutdown(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
+{
+ mile_stone(dai);
+}
+
+static int test_dai_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
+{
+ mile_stone(dai);
+
+ return 0;
+}
+
+static int test_dai_hw_free(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
+{
+ mile_stone(dai);
+
+ return 0;
+}
+
+static int test_dai_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_dai *dai)
+{
+ mile_stone(dai);
+
+ return 0;
+}
+
+static int test_dai_bespoke_trigger(struct snd_pcm_substream *substream,
+ int cmd, struct snd_soc_dai *dai)
+{
+ mile_stone(dai);
+
+ return 0;
+}
+
+static u64 test_dai_formats =
+ /*
+ * Select below from Sound Card, not auto
+ * SND_SOC_POSSIBLE_DAIFMT_CBP_CFP
+ * SND_SOC_POSSIBLE_DAIFMT_CBC_CFP
+ * SND_SOC_POSSIBLE_DAIFMT_CBP_CFC
+ * SND_SOC_POSSIBLE_DAIFMT_CBC_CFC
+ */
+ SND_SOC_POSSIBLE_DAIFMT_I2S |
+ SND_SOC_POSSIBLE_DAIFMT_RIGHT_J |
+ SND_SOC_POSSIBLE_DAIFMT_LEFT_J |
+ SND_SOC_POSSIBLE_DAIFMT_DSP_A |
+ SND_SOC_POSSIBLE_DAIFMT_DSP_B |
+ SND_SOC_POSSIBLE_DAIFMT_AC97 |
+ SND_SOC_POSSIBLE_DAIFMT_PDM |
+ SND_SOC_POSSIBLE_DAIFMT_NB_NF |
+ SND_SOC_POSSIBLE_DAIFMT_NB_IF |
+ SND_SOC_POSSIBLE_DAIFMT_IB_NF |
+ SND_SOC_POSSIBLE_DAIFMT_IB_IF;
+
+static const struct snd_soc_dai_ops test_ops = {
+ .set_fmt = test_dai_set_fmt,
+ .startup = test_dai_startup,
+ .shutdown = test_dai_shutdown,
+ .auto_selectable_formats = &test_dai_formats,
+ .num_auto_selectable_formats = 1,
+};
+
+static const struct snd_soc_dai_ops test_verbose_ops = {
+ .set_sysclk = test_dai_set_sysclk,
+ .set_pll = test_dai_set_pll,
+ .set_clkdiv = test_dai_set_clkdiv,
+ .set_fmt = test_dai_set_fmt,
+ .mute_stream = test_dai_mute_stream,
+ .startup = test_dai_startup,
+ .shutdown = test_dai_shutdown,
+ .hw_params = test_dai_hw_params,
+ .hw_free = test_dai_hw_free,
+ .trigger = test_dai_trigger,
+ .bespoke_trigger = test_dai_bespoke_trigger,
+ .auto_selectable_formats = &test_dai_formats,
+ .num_auto_selectable_formats = 1,
+};
+
+#define STUB_RATES SNDRV_PCM_RATE_8000_384000
+#define STUB_FORMATS (SNDRV_PCM_FMTBIT_S8 | \
+ SNDRV_PCM_FMTBIT_U8 | \
+ SNDRV_PCM_FMTBIT_S16_LE | \
+ SNDRV_PCM_FMTBIT_U16_LE | \
+ SNDRV_PCM_FMTBIT_S24_LE | \
+ SNDRV_PCM_FMTBIT_S24_3LE | \
+ SNDRV_PCM_FMTBIT_U24_LE | \
+ SNDRV_PCM_FMTBIT_S32_LE | \
+ SNDRV_PCM_FMTBIT_U32_LE)
+
+static int test_component_probe(struct snd_soc_component *component)
+{
+ mile_stone(component);
+
+ return 0;
+}
+
+static void test_component_remove(struct snd_soc_component *component)
+{
+ mile_stone(component);
+}
+
+static int test_component_suspend(struct snd_soc_component *component)
+{
+ mile_stone(component);
+
+ return 0;
+}
+
+static int test_component_resume(struct snd_soc_component *component)
+{
+ mile_stone(component);
+
+ return 0;
+}
+
+#define PREALLOC_BUFFER (32 * 1024)
+static int test_component_pcm_construct(struct snd_soc_component *component,
+ struct snd_soc_pcm_runtime *rtd)
+{
+ mile_stone(component);
+
+ snd_pcm_set_managed_buffer_all(
+ rtd->pcm,
+ SNDRV_DMA_TYPE_DEV,
+ rtd->card->snd_card->dev,
+ PREALLOC_BUFFER, PREALLOC_BUFFER);
+
+ return 0;
+}
+
+static void test_component_pcm_destruct(struct snd_soc_component *component,
+ struct snd_pcm *pcm)
+{
+ mile_stone(component);
+}
+
+static int test_component_set_sysclk(struct snd_soc_component *component,
+ int clk_id, int source, unsigned int freq, int dir)
+{
+ mile_stone(component);
+
+ return 0;
+}
+
+static int test_component_set_pll(struct snd_soc_component *component, int pll_id,
+ int source, unsigned int freq_in, unsigned int freq_out)
+{
+ mile_stone(component);
+
+ return 0;
+}
+
+static int test_component_set_jack(struct snd_soc_component *component,
+ struct snd_soc_jack *jack, void *data)
+{
+ mile_stone(component);
+
+ return 0;
+}
+
+static void test_component_seq_notifier(struct snd_soc_component *component,
+ enum snd_soc_dapm_type type, int subseq)
+{
+ mile_stone(component);
+}
+
+static int test_component_stream_event(struct snd_soc_component *component, int event)
+{
+ mile_stone(component);
+
+ return 0;
+}
+
+static int test_component_set_bias_level(struct snd_soc_component *component,
+ enum snd_soc_bias_level level)
+{
+ mile_stone(component);
+
+ return 0;
+}
+
+static const struct snd_pcm_hardware test_component_hardware = {
+ /* Random values to keep userspace happy when checking constraints */
+ .info = SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_MMAP |
+ SNDRV_PCM_INFO_MMAP_VALID,
+ .buffer_bytes_max = 32 * 1024,
+ .period_bytes_min = 32,
+ .period_bytes_max = 8192,
+ .periods_min = 1,
+ .periods_max = 128,
+ .fifo_size = 256,
+};
+
+static int test_component_open(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+
+ mile_stone(component);
+
+ /* BE's dont need dummy params */
+ if (!rtd->dai_link->no_pcm)
+ snd_soc_set_runtime_hwparams(substream, &test_component_hardware);
+
+ return 0;
+}
+
+static int test_component_close(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ mile_stone(component);
+
+ return 0;
+}
+
+static int test_component_ioctl(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream,
+ unsigned int cmd, void *arg)
+{
+ mile_stone(component);
+
+ return 0;
+}
+
+static int test_component_hw_params(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ mile_stone(component);
+
+ return 0;
+}
+
+static int test_component_hw_free(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ mile_stone(component);
+
+ return 0;
+}
+
+static int test_component_prepare(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ mile_stone(component);
+
+ return 0;
+}
+
+static void test_component_timer_stop(struct test_priv *priv)
+{
+ cancel_delayed_work(&priv->dwork);
+}
+
+static void test_component_timer_start(struct test_priv *priv)
+{
+ schedule_delayed_work(&priv->dwork, msecs_to_jiffies(10));
+}
+
+static void test_component_dwork(struct work_struct *work)
+{
+ struct test_priv *priv = container_of(work, struct test_priv, dwork.work);
+
+ if (priv->substream)
+ snd_pcm_period_elapsed(priv->substream);
+
+ test_component_timer_start(priv);
+}
+
+static int test_component_trigger(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream, int cmd)
+{
+ struct test_priv *priv = dev_get_drvdata(component->dev);
+
+ mile_stone(component);
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ test_component_timer_start(priv);
+ priv->substream = substream; /* set substream later */
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ priv->substream = NULL;
+ test_component_timer_stop(priv);
+ }
+
+ return 0;
+}
+
+static int test_component_sync_stop(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ mile_stone(component);
+
+ return 0;
+}
+
+static snd_pcm_uframes_t test_component_pointer(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ static int pointer;
+
+ if (!runtime)
+ return 0;
+
+ pointer += 10;
+ if (pointer > PREALLOC_BUFFER)
+ pointer = 0;
+
+ /* mile_stone(component); */
+
+ return bytes_to_frames(runtime, pointer);
+}
+
+static int test_component_get_time_info(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream,
+ struct timespec64 *system_ts,
+ struct timespec64 *audio_ts,
+ struct snd_pcm_audio_tstamp_config *audio_tstamp_config,
+ struct snd_pcm_audio_tstamp_report *audio_tstamp_report)
+{
+ mile_stone(component);
+
+ return 0;
+}
+
+static int test_component_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
+ struct snd_pcm_hw_params *params)
+{
+ mile_stone_x(rtd->dev);
+
+ return 0;
+}
+
+/* CPU */
+static const struct test_adata test_cpu = { .is_cpu = 1, .cmp_v = 0, .dai_v = 0, };
+static const struct test_adata test_cpu_vv = { .is_cpu = 1, .cmp_v = 1, .dai_v = 1, };
+static const struct test_adata test_cpu_nv = { .is_cpu = 1, .cmp_v = 0, .dai_v = 1, };
+static const struct test_adata test_cpu_vn = { .is_cpu = 1, .cmp_v = 1, .dai_v = 0, };
+/* Codec */
+static const struct test_adata test_codec = { .is_cpu = 0, .cmp_v = 0, .dai_v = 0, };
+static const struct test_adata test_codec_vv = { .is_cpu = 0, .cmp_v = 1, .dai_v = 1, };
+static const struct test_adata test_codec_nv = { .is_cpu = 0, .cmp_v = 0, .dai_v = 1, };
+static const struct test_adata test_codec_vn = { .is_cpu = 0, .cmp_v = 1, .dai_v = 0, };
+
+static const struct of_device_id test_of_match[] = {
+ { .compatible = "test-cpu", .data = (void *)&test_cpu, },
+ { .compatible = "test-cpu-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 of_device_id *of_id = of_match_device(test_of_match, &pdev->dev);
+ const struct test_adata *adata = of_id->data;
+ struct snd_soc_component_driver *cdriv;
+ struct snd_soc_dai_driver *ddriv;
+ struct test_dai_name *dname;
+ struct test_priv *priv;
+ int num, ret, i;
+
+ num = of_graph_get_endpoint_count(node);
+ if (!num) {
+ dev_err(dev, "no port exits\n");
+ return -EINVAL;
+ }
+
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ cdriv = devm_kzalloc(dev, sizeof(*cdriv), GFP_KERNEL);
+ ddriv = devm_kzalloc(dev, sizeof(*ddriv) * num, GFP_KERNEL);
+ dname = devm_kzalloc(dev, sizeof(*dname) * num, GFP_KERNEL);
+ if (!priv || !cdriv || !ddriv || !dname)
+ return -EINVAL;
+
+ priv->dev = dev;
+ priv->component_driver = cdriv;
+ priv->dai_driver = ddriv;
+ priv->name = dname;
+
+ INIT_DELAYED_WORK(&priv->dwork, test_component_dwork);
+ dev_set_drvdata(dev, priv);
+
+ if (adata->is_cpu) {
+ cdriv->name = "test_cpu";
+ cdriv->pcm_construct = test_component_pcm_construct;
+ cdriv->pointer = test_component_pointer;
+ cdriv->trigger = test_component_trigger;
+ } else {
+ cdriv->name = "test_codec";
+ cdriv->idle_bias_on = 1;
+ cdriv->endianness = 1;
+ cdriv->non_legacy_dai_naming = 1;
+ }
+
+ cdriv->open = test_component_open;
+ cdriv->dapm_widgets = widgets;
+ cdriv->num_dapm_widgets = ARRAY_SIZE(widgets);
+
+ if (adata->cmp_v) {
+ cdriv->probe = test_component_probe;
+ cdriv->remove = test_component_remove;
+ cdriv->suspend = test_component_suspend;
+ cdriv->resume = test_component_resume;
+ cdriv->set_sysclk = test_component_set_sysclk;
+ cdriv->set_pll = test_component_set_pll;
+ cdriv->set_jack = test_component_set_jack;
+ cdriv->seq_notifier = test_component_seq_notifier;
+ cdriv->stream_event = test_component_stream_event;
+ cdriv->set_bias_level = test_component_set_bias_level;
+ cdriv->close = test_component_close;
+ cdriv->ioctl = test_component_ioctl;
+ cdriv->hw_params = test_component_hw_params;
+ cdriv->hw_free = test_component_hw_free;
+ cdriv->prepare = test_component_prepare;
+ cdriv->sync_stop = test_component_sync_stop;
+ cdriv->get_time_info = test_component_get_time_info;
+ cdriv->be_hw_params_fixup = test_component_be_hw_params_fixup;
+
+ if (adata->is_cpu)
+ cdriv->pcm_destruct = test_component_pcm_destruct;
+ }
+
+ i = 0;
+ for_each_endpoint_of_node(node, ep) {
+ snprintf(dname[i].name, TEST_NAME_LEN, "%s.%d", node->name, i);
+ ddriv[i].name = dname[i].name;
+
+ snprintf(dname[i].name_playback, TEST_NAME_LEN, "DAI%d Playback", i);
+ ddriv[i].playback.stream_name = dname[i].name_playback;
+ ddriv[i].playback.channels_min = 1;
+ ddriv[i].playback.channels_max = 384;
+ ddriv[i].playback.rates = STUB_RATES;
+ ddriv[i].playback.formats = STUB_FORMATS;
+
+ snprintf(dname[i].name_capture, TEST_NAME_LEN, "DAI%d Capture", i);
+ ddriv[i].capture.stream_name = dname[i].name_capture;
+ ddriv[i].capture.channels_min = 1;
+ ddriv[i].capture.channels_max = 384;
+ ddriv[i].capture.rates = STUB_RATES;
+ ddriv[i].capture.formats = STUB_FORMATS;
+
+ if (adata->dai_v)
+ ddriv[i].ops = &test_verbose_ops;
+ else
+ ddriv[i].ops = &test_ops;
+
+ i++;
+ }
+
+ ret = devm_snd_soc_register_component(dev, cdriv, ddriv, num);
+ if (ret < 0)
+ return ret;
+
+ mile_stone_x(dev);
+
+ return 0;
+}
+
+static int test_driver_remove(struct platform_device *pdev)
+{
+ mile_stone_x(&pdev->dev);
+
+ return 0;
+}
+
+static struct platform_driver test_driver = {
+ .driver = {
+ .name = "test-component",
+ .of_match_table = test_of_match,
+ },
+ .probe = test_driver_probe,
+ .remove = test_driver_remove,
+};
+module_platform_driver(test_driver);
+
+MODULE_ALIAS("platform:asoc-test-component");
+MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
+MODULE_DESCRIPTION("ASoC Test Component");
+MODULE_LICENSE("GPL v2");
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-29 10:54:59 +0000