ASoC: Tegra machine ASoC driver for boards using ALC5332 codec

At this stage only Toshiba AC100/Dynabook supported.

Signed-off-by: Leon Romanovsky <leon@leon.nu>
Signed-off-by: Andrey Danin <danindrey@mail.ru>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

3 files changed, 224 insertions, 0 deletions

diff --git a/sound/soc/tegra/Kconfig b/sound/soc/tegra/Kconfig
index c6af1fd707f5..ce1b773c351f 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 4d943b3fe150..8e584b8fcfba 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 000000000000..9287eb8028fd
--- /dev/null
+++ b/sound/soc/tegra/tegra_alc5632.c
@@ -0,0 +1,213 @@
+/*
+* tegra_alc5632.c  --  Toshiba AC100(PAZ00) machine ASoC driver
+*
+* Copyright (C) 2011 The AC100 Kernel Team <ac100@lists.lauchpad.net>
+*
+* Authors:  Leon Romanovsky <leon@leon.nu>
+*           Andrey Danin <danindrey@mail.ru>
+*           Marc Dietrich <marvin24@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);
+        mclk = 512 * srate;
+
+        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 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_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@leon.nu>");
+MODULE_DESCRIPTION("Tegra+ALC5632 machine ASoC driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRV_NAME);