summaryrefslogtreecommitdiff
path: root/sound/soc/sirf
diff options
context:
space:
mode:
Diffstat (limited to 'sound/soc/sirf')
-rw-r--r--sound/soc/sirf/Kconfig6
-rw-r--r--sound/soc/sirf/Makefile2
-rw-r--r--sound/soc/sirf/sirf-audio.c156
3 files changed, 164 insertions, 0 deletions
diff --git a/sound/soc/sirf/Kconfig b/sound/soc/sirf/Kconfig
index 75b0344d2151..89e89429b04a 100644
--- a/sound/soc/sirf/Kconfig
+++ b/sound/soc/sirf/Kconfig
@@ -3,6 +3,12 @@ config SND_SOC_SIRF
depends on ARCH_SIRF || COMPILE_TEST
select SND_SOC_GENERIC_DMAENGINE_PCM
+config SND_SOC_SIRF_AUDIO
+ tristate "SoC Audio support for SiRF internal audio codec"
+ depends on SND_SOC_SIRF
+ select SND_SOC_SIRF_AUDIO_CODEC
+ select SND_SOC_SIRF_AUDIO_PORT
+
config SND_SOC_SIRF_AUDIO_PORT
select REGMAP_MMIO
tristate
diff --git a/sound/soc/sirf/Makefile b/sound/soc/sirf/Makefile
index fb012c852b28..913b93231d4e 100644
--- a/sound/soc/sirf/Makefile
+++ b/sound/soc/sirf/Makefile
@@ -1,3 +1,5 @@
+snd-soc-sirf-audio-objs := sirf-audio.o
snd-soc-sirf-audio-port-objs := sirf-audio-port.o
+obj-$(CONFIG_SND_SOC_SIRF_AUDIO) += snd-soc-sirf-audio.o
obj-$(CONFIG_SND_SOC_SIRF_AUDIO_PORT) += snd-soc-sirf-audio-port.o
diff --git a/sound/soc/sirf/sirf-audio.c b/sound/soc/sirf/sirf-audio.c
new file mode 100644
index 000000000000..ecef51021653
--- /dev/null
+++ b/sound/soc/sirf/sirf-audio.c
@@ -0,0 +1,156 @@
+/*
+ * SiRF audio card driver
+ *
+ * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
+ *
+ * Licensed under GPLv2 or later.
+ */
+
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/gpio.h>
+#include <linux/of_gpio.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+
+struct sirf_audio_card {
+ unsigned int gpio_hp_pa;
+ unsigned int gpio_spk_pa;
+};
+
+static int sirf_audio_hp_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *ctrl, int event)
+{
+ struct snd_soc_dapm_context *dapm = w->dapm;
+ struct snd_soc_card *card = dapm->card;
+ struct sirf_audio_card *sirf_audio_card = snd_soc_card_get_drvdata(card);
+ int on = !SND_SOC_DAPM_EVENT_OFF(event);
+ if (gpio_is_valid(sirf_audio_card->gpio_hp_pa))
+ gpio_set_value(sirf_audio_card->gpio_hp_pa, on);
+ return 0;
+}
+
+static int sirf_audio_spk_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *ctrl, int event)
+{
+ struct snd_soc_dapm_context *dapm = w->dapm;
+ struct snd_soc_card *card = dapm->card;
+ struct sirf_audio_card *sirf_audio_card = snd_soc_card_get_drvdata(card);
+ int on = !SND_SOC_DAPM_EVENT_OFF(event);
+
+ if (gpio_is_valid(sirf_audio_card->gpio_spk_pa))
+ gpio_set_value(sirf_audio_card->gpio_spk_pa, on);
+
+ return 0;
+}
+static const struct snd_soc_dapm_widget sirf_audio_dapm_widgets[] = {
+ SND_SOC_DAPM_HP("Hp", sirf_audio_hp_event),
+ SND_SOC_DAPM_SPK("Ext Spk", sirf_audio_spk_event),
+ SND_SOC_DAPM_MIC("Ext Mic", NULL),
+};
+
+static const struct snd_soc_dapm_route intercon[] = {
+ {"Hp", NULL, "HPOUTL"},
+ {"Hp", NULL, "HPOUTR"},
+ {"Ext Spk", NULL, "SPKOUT"},
+ {"MICIN1", NULL, "Mic Bias"},
+ {"Mic Bias", NULL, "Ext Mic"},
+};
+
+/* Digital audio interface glue - connects codec <--> CPU */
+static struct snd_soc_dai_link sirf_audio_dai_link[] = {
+ {
+ .name = "SiRF audio card",
+ .stream_name = "SiRF audio HiFi",
+ .codec_dai_name = "sirf-audio-codec",
+ },
+};
+
+/* Audio machine driver */
+static struct snd_soc_card snd_soc_sirf_audio_card = {
+ .name = "SiRF audio card",
+ .owner = THIS_MODULE,
+ .dai_link = sirf_audio_dai_link,
+ .num_links = ARRAY_SIZE(sirf_audio_dai_link),
+ .dapm_widgets = sirf_audio_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(sirf_audio_dapm_widgets),
+ .dapm_routes = intercon,
+ .num_dapm_routes = ARRAY_SIZE(intercon),
+};
+
+static int sirf_audio_probe(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = &snd_soc_sirf_audio_card;
+ struct sirf_audio_card *sirf_audio_card;
+ int ret;
+
+ sirf_audio_card = devm_kzalloc(&pdev->dev, sizeof(struct sirf_audio_card),
+ GFP_KERNEL);
+ if (sirf_audio_card == NULL)
+ return -ENOMEM;
+
+ sirf_audio_dai_link[0].cpu_of_node =
+ of_parse_phandle(pdev->dev.of_node, "sirf,audio-platform", 0);
+ sirf_audio_dai_link[0].platform_of_node =
+ of_parse_phandle(pdev->dev.of_node, "sirf,audio-platform", 0);
+ sirf_audio_dai_link[0].codec_of_node =
+ of_parse_phandle(pdev->dev.of_node, "sirf,audio-codec", 0);
+ sirf_audio_card->gpio_spk_pa = of_get_named_gpio(pdev->dev.of_node,
+ "spk-pa-gpios", 0);
+ sirf_audio_card->gpio_hp_pa = of_get_named_gpio(pdev->dev.of_node,
+ "hp-pa-gpios", 0);
+ if (gpio_is_valid(sirf_audio_card->gpio_spk_pa)) {
+ ret = devm_gpio_request_one(&pdev->dev,
+ sirf_audio_card->gpio_spk_pa,
+ GPIOF_OUT_INIT_LOW, "SPA_PA_SD");
+ if (ret) {
+ dev_err(&pdev->dev,
+ "Failed to request GPIO_%d for reset: %d\n",
+ sirf_audio_card->gpio_spk_pa, ret);
+ return ret;
+ }
+ }
+ if (gpio_is_valid(sirf_audio_card->gpio_hp_pa)) {
+ ret = devm_gpio_request_one(&pdev->dev,
+ sirf_audio_card->gpio_hp_pa,
+ GPIOF_OUT_INIT_LOW, "HP_PA_SD");
+ if (ret) {
+ dev_err(&pdev->dev,
+ "Failed to request GPIO_%d for reset: %d\n",
+ sirf_audio_card->gpio_hp_pa, ret);
+ return ret;
+ }
+ }
+
+ card->dev = &pdev->dev;
+ snd_soc_card_set_drvdata(card, sirf_audio_card);
+
+ ret = devm_snd_soc_register_card(&pdev->dev, card);
+ if (ret)
+ dev_err(&pdev->dev, "snd_soc_register_card() failed:%d\n", ret);
+
+ return ret;
+}
+
+static const struct of_device_id sirf_audio_of_match[] = {
+ {.compatible = "sirf,sirf-audio-card", },
+ { },
+};
+MODULE_DEVICE_TABLE(of, sirf_audio_of_match);
+
+static struct platform_driver sirf_audio_driver = {
+ .driver = {
+ .name = "sirf-audio-card",
+ .owner = THIS_MODULE,
+ .pm = &snd_soc_pm_ops,
+ .of_match_table = sirf_audio_of_match,
+ },
+ .probe = sirf_audio_probe,
+};
+module_platform_driver(sirf_audio_driver);
+
+MODULE_AUTHOR("RongJun Ying <RongJun.Ying@csr.com>");
+MODULE_DESCRIPTION("ALSA SoC SIRF audio card driver");
+MODULE_LICENSE("GPL v2");
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-16 05:55:46 +0300