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-rw-r--r--sound/soc/qcom/common.c242
1 files changed, 242 insertions, 0 deletions
diff --git a/sound/soc/qcom/common.c b/sound/soc/qcom/common.c
new file mode 100644
index 0000000000..e2d8c41945
--- /dev/null
+++ b/sound/soc/qcom/common.c
@@ -0,0 +1,242 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2018, Linaro Limited.
+// Copyright (c) 2018, The Linux Foundation. All rights reserved.
+
+#include <linux/module.h>
+#include <sound/jack.h>
+#include <linux/input-event-codes.h>
+#include "qdsp6/q6afe.h"
+#include "common.h"
+
+static const struct snd_soc_dapm_widget qcom_jack_snd_widgets[] = {
+ SND_SOC_DAPM_HP("Headphone Jack", NULL),
+ SND_SOC_DAPM_MIC("Mic Jack", NULL),
+};
+
+int qcom_snd_parse_of(struct snd_soc_card *card)
+{
+ struct device_node *np;
+ struct device_node *codec = NULL;
+ struct device_node *platform = NULL;
+ struct device_node *cpu = NULL;
+ struct device *dev = card->dev;
+ struct snd_soc_dai_link *link;
+ struct of_phandle_args args;
+ struct snd_soc_dai_link_component *dlc;
+ int ret, num_links;
+
+ ret = snd_soc_of_parse_card_name(card, "model");
+ if (ret == 0 && !card->name)
+ /* Deprecated, only for compatibility with old device trees */
+ ret = snd_soc_of_parse_card_name(card, "qcom,model");
+ if (ret) {
+ dev_err(dev, "Error parsing card name: %d\n", ret);
+ return ret;
+ }
+
+ if (of_property_read_bool(dev->of_node, "widgets")) {
+ ret = snd_soc_of_parse_audio_simple_widgets(card, "widgets");
+ if (ret)
+ return ret;
+ }
+
+ /* DAPM routes */
+ if (of_property_read_bool(dev->of_node, "audio-routing")) {
+ ret = snd_soc_of_parse_audio_routing(card, "audio-routing");
+ if (ret)
+ return ret;
+ }
+ /* Deprecated, only for compatibility with old device trees */
+ if (of_property_read_bool(dev->of_node, "qcom,audio-routing")) {
+ ret = snd_soc_of_parse_audio_routing(card, "qcom,audio-routing");
+ if (ret)
+ return ret;
+ }
+
+ ret = snd_soc_of_parse_pin_switches(card, "pin-switches");
+ if (ret)
+ return ret;
+
+ ret = snd_soc_of_parse_aux_devs(card, "aux-devs");
+ if (ret)
+ return ret;
+
+ /* Populate links */
+ num_links = of_get_available_child_count(dev->of_node);
+
+ /* Allocate the DAI link array */
+ card->dai_link = devm_kcalloc(dev, num_links, sizeof(*link), GFP_KERNEL);
+ if (!card->dai_link)
+ return -ENOMEM;
+
+ card->num_links = num_links;
+ link = card->dai_link;
+
+ for_each_available_child_of_node(dev->of_node, np) {
+ dlc = devm_kzalloc(dev, 2 * sizeof(*dlc), GFP_KERNEL);
+ if (!dlc) {
+ ret = -ENOMEM;
+ goto err_put_np;
+ }
+
+ link->cpus = &dlc[0];
+ link->platforms = &dlc[1];
+
+ link->num_cpus = 1;
+ link->num_platforms = 1;
+
+ ret = of_property_read_string(np, "link-name", &link->name);
+ if (ret) {
+ dev_err(card->dev, "error getting codec dai_link name\n");
+ goto err_put_np;
+ }
+
+ cpu = of_get_child_by_name(np, "cpu");
+ platform = of_get_child_by_name(np, "platform");
+ codec = of_get_child_by_name(np, "codec");
+
+ if (!cpu) {
+ dev_err(dev, "%s: Can't find cpu DT node\n", link->name);
+ ret = -EINVAL;
+ goto err;
+ }
+
+ ret = snd_soc_of_get_dlc(cpu, &args, link->cpus, 0);
+ if (ret) {
+ dev_err_probe(card->dev, ret,
+ "%s: error getting cpu dai name\n", link->name);
+ goto err;
+ }
+
+ link->id = args.args[0];
+
+ if (platform) {
+ link->platforms->of_node = of_parse_phandle(platform,
+ "sound-dai",
+ 0);
+ if (!link->platforms->of_node) {
+ dev_err(card->dev, "%s: platform dai not found\n", link->name);
+ ret = -EINVAL;
+ goto err;
+ }
+ } else {
+ link->platforms->of_node = link->cpus->of_node;
+ }
+
+ if (codec) {
+ ret = snd_soc_of_get_dai_link_codecs(dev, codec, link);
+ if (ret < 0) {
+ dev_err_probe(card->dev, ret,
+ "%s: codec dai not found\n", link->name);
+ goto err;
+ }
+
+ if (platform) {
+ /* DPCM backend */
+ link->no_pcm = 1;
+ link->ignore_pmdown_time = 1;
+ }
+ } else {
+ /* DPCM frontend */
+ link->codecs = &asoc_dummy_dlc;
+ link->num_codecs = 1;
+ link->dynamic = 1;
+ }
+
+ if (platform || !codec) {
+ /* DPCM */
+ snd_soc_dai_link_set_capabilities(link);
+ link->ignore_suspend = 1;
+ link->nonatomic = 1;
+ }
+
+ link->stream_name = link->name;
+ link++;
+
+ of_node_put(cpu);
+ of_node_put(codec);
+ of_node_put(platform);
+ }
+
+ if (!card->dapm_widgets) {
+ card->dapm_widgets = qcom_jack_snd_widgets;
+ card->num_dapm_widgets = ARRAY_SIZE(qcom_jack_snd_widgets);
+ }
+
+ return 0;
+err:
+ of_node_put(cpu);
+ of_node_put(codec);
+ of_node_put(platform);
+err_put_np:
+ of_node_put(np);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(qcom_snd_parse_of);
+
+static struct snd_soc_jack_pin qcom_headset_jack_pins[] = {
+ /* Headset */
+ {
+ .pin = "Mic Jack",
+ .mask = SND_JACK_MICROPHONE,
+ },
+ {
+ .pin = "Headphone Jack",
+ .mask = SND_JACK_HEADPHONE,
+ },
+};
+
+int qcom_snd_wcd_jack_setup(struct snd_soc_pcm_runtime *rtd,
+ struct snd_soc_jack *jack, bool *jack_setup)
+{
+ struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
+ struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+ struct snd_soc_card *card = rtd->card;
+ int rval, i;
+
+ if (!*jack_setup) {
+ rval = snd_soc_card_jack_new_pins(card, "Headset Jack",
+ SND_JACK_HEADSET | SND_JACK_LINEOUT |
+ SND_JACK_MECHANICAL |
+ SND_JACK_BTN_0 | SND_JACK_BTN_1 |
+ SND_JACK_BTN_2 | SND_JACK_BTN_3 |
+ SND_JACK_BTN_4 | SND_JACK_BTN_5,
+ jack, qcom_headset_jack_pins,
+ ARRAY_SIZE(qcom_headset_jack_pins));
+
+ if (rval < 0) {
+ dev_err(card->dev, "Unable to add Headphone Jack\n");
+ return rval;
+ }
+
+ snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_MEDIA);
+ snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
+ snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
+ snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
+ *jack_setup = true;
+ }
+
+ switch (cpu_dai->id) {
+ case TX_CODEC_DMA_TX_0:
+ case TX_CODEC_DMA_TX_1:
+ case TX_CODEC_DMA_TX_2:
+ case TX_CODEC_DMA_TX_3:
+ for_each_rtd_codec_dais(rtd, i, codec_dai) {
+ rval = snd_soc_component_set_jack(codec_dai->component,
+ jack, NULL);
+ if (rval != 0 && rval != -ENOTSUPP) {
+ dev_warn(card->dev, "Failed to set jack: %d\n", rval);
+ return rval;
+ }
+ }
+
+ break;
+ default:
+ break;
+ }
+
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(qcom_snd_wcd_jack_setup);
+MODULE_LICENSE("GPL v2");
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