[alsa-devel] [PATCH v2] ASoC: Tegra machine ASoC driver for boards using ALC5332 codec
Leon Romanovsky
leon at leon.nu
Mon Dec 12 20:45:54 CET 2011
At this stage only Toshiba AC100/Dynabook supported.
Signed-off-by: Leon Romanovsky <leon at leon.nu>
Signed-off-by: Andrey Danin <danindrey at mail.ru>
--
Changes since v1:
* Use module_platform_driver.
* Move controls, dapm_widgets and dapm_routes to snd_soc_card structure.
* Set dai_fmt in snd_soc_dai_link structure instead probe function.
* Remove check board in probe function
* Fix warning about unused codec_dai.
* Use devm_kzalloc to manage memory allocation.
---
sound/soc/tegra/Kconfig | 9 ++
sound/soc/tegra/Makefile | 2 +
sound/soc/tegra/tegra_alc5632.c | 233 +++++++++++++++++++++++++++++++++++++++
3 files changed, 244 insertions(+), 0 deletions(-)
create mode 100644 sound/soc/tegra/tegra_alc5632.c
diff --git a/sound/soc/tegra/Kconfig b/sound/soc/tegra/Kconfig
index c6af1fd..ce1b773 100644
--- a/sound/soc/tegra/Kconfig
+++ b/sound/soc/tegra/Kconfig
@@ -47,3 +47,12 @@ config SND_SOC_TEGRA_TRIMSLICE
help
Say Y or M here if you want to add support for SoC audio on the
TrimSlice platform.
+
+config SND_SOC_TEGRA_ALC5632
+ tristate "SoC Audio support for Tegra boards using an ALC5632 codec"
+ depends on SND_SOC_TEGRA && I2C
+ select SND_SOC_TEGRA_I2S
+ select SND_SOC_ALC5632
+ help
+ Say Y or M here if you want to add support for SoC audio on the
+ Toshiba AC100 netbook.
diff --git a/sound/soc/tegra/Makefile b/sound/soc/tegra/Makefile
index 4d943b3..8e584b8 100644
--- a/sound/soc/tegra/Makefile
+++ b/sound/soc/tegra/Makefile
@@ -14,6 +14,8 @@ obj-$(CONFIG_SND_SOC_TEGRA_SPDIF) += snd-soc-tegra-spdif.o
# Tegra machine Support
snd-soc-tegra-wm8903-objs := tegra_wm8903.o
snd-soc-tegra-trimslice-objs := trimslice.o
+snd-soc-tegra-alc5632-objs := tegra_alc5632.o
obj-$(CONFIG_SND_SOC_TEGRA_WM8903) += snd-soc-tegra-wm8903.o
obj-$(CONFIG_SND_SOC_TEGRA_TRIMSLICE) += snd-soc-tegra-trimslice.o
+obj-$(CONFIG_SND_SOC_TEGRA_ALC5632) += snd-soc-tegra-alc5632.o
diff --git a/sound/soc/tegra/tegra_alc5632.c b/sound/soc/tegra/tegra_alc5632.c
new file mode 100644
index 0000000..89697c6
--- /dev/null
+++ b/sound/soc/tegra/tegra_alc5632.c
@@ -0,0 +1,233 @@
+/*
+* tegra_alc5632.c -- Toshiba AC100(PAZ00) machine ASoC driver
+*
+* Copyright (C) 2011 The AC100 Kernel Team <ac100 at lists.lauchpad.net>
+*
+* Authors: Leon Romanovsky <leon at leon.nu>
+* Andrey Danin <danindrey at mail.ru>
+* Marc Dietrich <marvin24 at gmx.de>
+*
+* This program is free software; you can redistribute it and/or modify
+* it under the terms of the GNU General Public License version 2 as
+* published by the Free Software Foundation.
+*/
+
+#include <asm/mach-types.h>
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/gpio.h>
+
+#include <sound/core.h>
+#include <sound/jack.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#include "../codecs/alc5632.h"
+
+#include "tegra_das.h"
+#include "tegra_i2s.h"
+#include "tegra_pcm.h"
+#include "tegra_asoc_utils.h"
+
+#define DRV_NAME "tegra-alc5632"
+
+struct tegra_alc5632 {
+ struct tegra_asoc_utils_data util_data;
+};
+
+static int tegra_alc5632_asoc_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+ struct snd_soc_codec *codec = rtd->codec;
+ struct snd_soc_card *card = codec->card;
+ struct tegra_alc5632 *alc5632 = snd_soc_card_get_drvdata(card);
+ int srate, mclk;
+ int err;
+
+ srate = params_rate(params);
+ switch (srate) {
+ case 64000:
+ case 88200:
+ case 96000:
+ mclk = 128 * srate;
+ break;
+ default:
+ mclk = 512 * srate;
+ break;
+ }
+ /* FIXME: Codec only requires >= 3MHz if OSR==0 */
+ while (mclk < 6000000)
+ mclk *= 2;
+
+ err = tegra_asoc_utils_set_rate(&alc5632->util_data, srate, mclk);
+ if (err < 0) {
+ dev_err(card->dev, "Can't configure clocks\n");
+ return err;
+ }
+
+ err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
+ SND_SOC_CLOCK_IN);
+ if (err < 0) {
+ dev_err(card->dev, "codec_dai clock not set\n");
+ return err;
+ }
+
+ return 0;
+}
+
+static struct snd_soc_ops tegra_alc5632_asoc_ops = {
+ .hw_params = tegra_alc5632_asoc_hw_params,
+};
+
+static struct snd_soc_jack tegra_alc5632_hs_jack;
+
+static struct snd_soc_jack_pin tegra_alc5632_hs_jack_pins[] = {
+ {
+ .pin = "Headset Mic",
+ .mask = SND_JACK_MICROPHONE,
+ },
+ {
+ .pin = "Headset Stereophone",
+ .mask = SND_JACK_HEADPHONE,
+ },
+};
+
+static struct snd_soc_jack_gpio tegra_alc5632_hs_jack_gpio = {
+ .name = "Headset Detect",
+ .report = SND_JACK_HEADSET,
+ .debounce_time = 150,
+};
+
+static const struct snd_soc_dapm_widget tegra_alc5632_dapm_widgets[] = {
+ SND_SOC_DAPM_SPK("Int Spk", NULL),
+ SND_SOC_DAPM_HP("Headset Stereophone", NULL),
+ SND_SOC_DAPM_MIC("Headset Mic", NULL),
+};
+
+static const struct snd_soc_dapm_route tegra_alc5632_audio_map[] = {
+ /* Internal Speaker */
+ {"Int Spk", NULL, "SPKOUT"},
+ {"Int Spk", NULL, "SPKOUTN"},
+
+ /* Headset Mic */
+ {"MIC1", NULL, "MICBIAS1"},
+ {"MICBIAS1", NULL, "Headset Mic"},
+
+ /* Headset Stereophone */
+ {"Headset Stereophone", NULL, "HPR"},
+ {"Headset Stereophone", NULL, "HPL"},
+};
+
+static const struct snd_kcontrol_new tegra_alc5632_controls[] = {
+ SOC_DAPM_PIN_SWITCH("Int Spk"),
+};
+
+static int tegra_alc5632_asoc_init(struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_soc_codec *codec = rtd->codec;
+ struct snd_soc_dapm_context *dapm = &codec->dapm;
+
+ snd_soc_jack_new(codec, "Headset Jack", SND_JACK_HEADSET,
+ &tegra_alc5632_hs_jack);
+ snd_soc_jack_add_pins(&tegra_alc5632_hs_jack,
+ ARRAY_SIZE(tegra_alc5632_hs_jack_pins),
+ tegra_alc5632_hs_jack_pins);
+ snd_soc_jack_add_gpios(&tegra_alc5632_hs_jack,
+ 1, &tegra_alc5632_hs_jack_gpio);
+
+ snd_soc_dapm_force_enable_pin(dapm, "MICBIAS1");
+
+ return 0;
+}
+
+static struct snd_soc_dai_link tegra_alc5632_dai = {
+ .name = "ALC5632",
+ .stream_name = "ALC5632 PCM",
+ .codec_name = "alc5632.0-001e",
+ .platform_name = "tegra-pcm-audio",
+ .cpu_dai_name = "tegra-i2s.0",
+ .codec_dai_name = "alc5632-hifi",
+ .init = tegra_alc5632_asoc_init,
+ .ops = &tegra_alc5632_asoc_ops,
+ .dai_fmt = SND_SOC_DAIFMT_I2S
+ | SND_SOC_DAIFMT_NB_NF
+ | SND_SOC_DAIFMT_CBS_CFS,
+};
+
+static struct snd_soc_card snd_soc_tegra_alc5632 = {
+ .name = "tegra-alc5632",
+ .dai_link = &tegra_alc5632_dai,
+ .num_links = 1,
+ .controls = tegra_alc5632_controls,
+ .num_controls = ARRAY_SIZE(tegra_alc5632_controls),
+ .dapm_widgets = tegra_alc5632_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(tegra_alc5632_dapm_widgets),
+ .dapm_routes = tegra_alc5632_audio_map,
+ .num_dapm_routes = ARRAY_SIZE(tegra_alc5632_audio_map),
+ .fully_routed = true,
+};
+
+static __devinit int tegra_alc5632_probe(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = &snd_soc_tegra_alc5632;
+ struct tegra_alc5632 *alc5632;
+ int ret;
+
+ alc5632 = devm_kzalloc(&pdev->dev,
+ sizeof(struct tegra_alc5632), GFP_KERNEL);
+ if (!alc5632) {
+ dev_err(&pdev->dev, "Can't allocate tegra_alc5632\n");
+ return -ENOMEM;
+ }
+
+ ret = tegra_asoc_utils_init(&alc5632->util_data, &pdev->dev);
+ if (ret)
+ return ret;
+
+ card->dev = &pdev->dev;
+ platform_set_drvdata(pdev, card);
+ snd_soc_card_set_drvdata(card, alc5632);
+
+ ret = snd_soc_register_card(card);
+ if (ret) {
+ dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
+ ret);
+ tegra_asoc_utils_fini(&alc5632->util_data);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int __devexit tegra_alc5632_remove(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = platform_get_drvdata(pdev);
+ struct tegra_alc5632 *alc5632 = snd_soc_card_get_drvdata(card);
+
+ snd_soc_unregister_card(card);
+
+ tegra_asoc_utils_fini(&alc5632->util_data);
+
+ return 0;
+}
+
+static struct platform_driver tegra_alc5632_driver = {
+ .driver = {
+ .name = DRV_NAME,
+ .owner = THIS_MODULE,
+ .pm = &snd_soc_pm_ops,
+ },
+ .probe = tegra_alc5632_probe,
+ .remove = __devexit_p(tegra_alc5632_remove),
+};
+module_platform_driver(tegra_alc5632_driver);
+
+MODULE_AUTHOR("Leon Romanovsky <leon at leon.nu>");
+MODULE_DESCRIPTION("Tegra+ALC5632 machine ASoC driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRV_NAME);
--
1.7.3.4
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