Soon, this machine driver will be updated to handle a number of Tegra boards
using the WM8903 codec. Rename the file in advance to reflect this.
Fix the content of tegra_wm8903.c to match the rename; replace references
to Harmony board with something more generic.
* s/struct tegra_harmony/struct tegra_wm8903/
* s/harmony/machine/ # variable name
* Similar rename for some functions
* Similar comment fix
* Similar MODULE_DESCRIPTION fix
Signed-off-by: Stephen Warren <swarren(a)nvidia.com>
---
This patch is for 2.6.40, and for the ASoC subsystem
sound/soc/tegra/Kconfig | 9 +-
sound/soc/tegra/Makefile | 4 +-
sound/soc/tegra/harmony.c | 394 ---------------------------------------
sound/soc/tegra/tegra_wm8903.c | 395 ++++++++++++++++++++++++++++++++++++++++
4 files changed, 402 insertions(+), 400 deletions(-)
delete mode 100644 sound/soc/tegra/harmony.c
create mode 100644 sound/soc/tegra/tegra_wm8903.c
diff --git a/sound/soc/tegra/Kconfig b/sound/soc/tegra/Kconfig
index 66b504f..9e53fec 100644
--- a/sound/soc/tegra/Kconfig
+++ b/sound/soc/tegra/Kconfig
@@ -14,13 +14,14 @@ config SND_TEGRA_SOC_I2S
Tegra I2S interface. You will also need to select the individual
machine drivers to support below.
-config SND_TEGRA_SOC_HARMONY
- tristate "SoC Audio support for Tegra Harmony reference board"
+config SND_TEGRA_SOC_WM8903
+ tristate "SoC Audio support for Tegra boards using a WM8903 codec"
depends on SND_TEGRA_SOC && MACH_HARMONY && I2C
default m
select SND_TEGRA_SOC_I2S
select SND_SOC_WM8903
help
- Say Y or M here if you want to add support for SoC audio on the
- Tegra Harmony reference board.
+ Say Y or M here if you want to add support for SoC audio on Tegra
+ boards using the WM8093 codec. Currently, the only supported board
+ is Harmony.
diff --git a/sound/soc/tegra/Makefile b/sound/soc/tegra/Makefile
index fd183d3..c9f7ea4 100644
--- a/sound/soc/tegra/Makefile
+++ b/sound/soc/tegra/Makefile
@@ -10,6 +10,6 @@ obj-$(CONFIG_SND_TEGRA_SOC) += snd-soc-tegra-pcm.o
obj-$(CONFIG_SND_TEGRA_SOC_I2S) += snd-soc-tegra-i2s.o
# Tegra machine Support
-snd-soc-tegra-harmony-objs := harmony.o
+snd-soc-tegra-wm8903-objs := tegra_wm8903.o
-obj-$(CONFIG_SND_TEGRA_SOC_HARMONY) += snd-soc-tegra-harmony.o
+obj-$(CONFIG_SND_TEGRA_SOC_WM8903) += snd-soc-tegra-wm8903.o
diff --git a/sound/soc/tegra/harmony.c b/sound/soc/tegra/harmony.c
deleted file mode 100644
index 6bd1e42..0000000
--- a/sound/soc/tegra/harmony.c
+++ /dev/null
@@ -1,394 +0,0 @@
-/*
- * harmony.c - Harmony machine ASoC driver
- *
- * Author: Stephen Warren <swarren(a)nvidia.com>
- * Copyright (C) 2010-2011 - NVIDIA, Inc.
- *
- * Based on code copyright/by:
- *
- * (c) 2009, 2010 Nvidia Graphics Pvt. Ltd.
- *
- * Copyright 2007 Wolfson Microelectronics PLC.
- * Author: Graeme Gregory
- * graeme.gregory(a)wolfsonmicro.com or linux(a)wolfsonmicro.com
- *
- * 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.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
- *
- */
-
-#include <asm/mach-types.h>
-
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-#include <linux/gpio.h>
-
-#include <mach/tegra_wm8903_pdata.h>
-
-#include <sound/core.h>
-#include <sound/jack.h>
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
-#include <sound/soc.h>
-
-#include "../codecs/wm8903.h"
-
-#include "tegra_das.h"
-#include "tegra_i2s.h"
-#include "tegra_pcm.h"
-#include "tegra_asoc_utils.h"
-
-#define DRV_NAME "tegra-snd-wm8903"
-
-#define GPIO_SPKR_EN BIT(0)
-#define GPIO_INT_MIC_EN BIT(1)
-#define GPIO_EXT_MIC_EN BIT(2)
-
-struct tegra_harmony {
- struct tegra_asoc_utils_data util_data;
- struct tegra_wm8903_platform_data *pdata;
- int gpio_requested;
-};
-
-static int harmony_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_dai *cpu_dai = rtd->cpu_dai;
- struct snd_soc_codec *codec = rtd->codec;
- struct snd_soc_card *card = codec->card;
- struct tegra_harmony *harmony = snd_soc_card_get_drvdata(card);
- int srate, mclk, mclk_change;
- int err;
-
- srate = params_rate(params);
- switch (srate) {
- case 64000:
- case 88200:
- case 96000:
- mclk = 128 * srate;
- break;
- default:
- mclk = 256 * srate;
- break;
- }
- /* FIXME: Codec only requires >= 3MHz if OSR==0 */
- while (mclk < 6000000)
- mclk *= 2;
-
- err = tegra_asoc_utils_set_rate(&harmony->util_data, srate, mclk,
- &mclk_change);
- if (err < 0) {
- dev_err(card->dev, "Can't configure clocks\n");
- return err;
- }
-
- err = snd_soc_dai_set_fmt(codec_dai,
- SND_SOC_DAIFMT_I2S |
- SND_SOC_DAIFMT_NB_NF |
- SND_SOC_DAIFMT_CBS_CFS);
- if (err < 0) {
- dev_err(card->dev, "codec_dai fmt not set\n");
- return err;
- }
-
- err = snd_soc_dai_set_fmt(cpu_dai,
- SND_SOC_DAIFMT_I2S |
- SND_SOC_DAIFMT_NB_NF |
- SND_SOC_DAIFMT_CBS_CFS);
- if (err < 0) {
- dev_err(card->dev, "cpu_dai fmt not set\n");
- return err;
- }
-
- if (mclk_change) {
- 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 harmony_asoc_ops = {
- .hw_params = harmony_asoc_hw_params,
-};
-
-static struct snd_soc_jack harmony_hp_jack;
-
-static struct snd_soc_jack_pin harmony_hp_jack_pins[] = {
- {
- .pin = "Headphone Jack",
- .mask = SND_JACK_HEADPHONE,
- },
-};
-
-static struct snd_soc_jack_gpio harmony_hp_jack_gpios[] = {
- {
- .name = "headphone detect",
- .report = SND_JACK_HEADPHONE,
- .debounce_time = 150,
- .invert = 1,
- }
-};
-
-static struct snd_soc_jack harmony_mic_jack;
-
-static struct snd_soc_jack_pin harmony_mic_jack_pins[] = {
- {
- .pin = "Mic Jack",
- .mask = SND_JACK_MICROPHONE,
- },
-};
-
-static int harmony_event_int_spk(struct snd_soc_dapm_widget *w,
- struct snd_kcontrol *k, int event)
-{
- struct snd_soc_codec *codec = w->codec;
- struct snd_soc_card *card = codec->card;
- struct tegra_harmony *harmony = snd_soc_card_get_drvdata(card);
- struct tegra_wm8903_platform_data *pdata = harmony->pdata;
-
- gpio_set_value_cansleep(pdata->gpio_spkr_en,
- SND_SOC_DAPM_EVENT_ON(event));
-
- return 0;
-}
-
-static const struct snd_soc_dapm_widget harmony_dapm_widgets[] = {
- SND_SOC_DAPM_SPK("Int Spk", harmony_event_int_spk),
- SND_SOC_DAPM_HP("Headphone Jack", NULL),
- SND_SOC_DAPM_MIC("Mic Jack", NULL),
-};
-
-static const struct snd_soc_dapm_route harmony_audio_map[] = {
- {"Headphone Jack", NULL, "HPOUTR"},
- {"Headphone Jack", NULL, "HPOUTL"},
- {"Int Spk", NULL, "ROP"},
- {"Int Spk", NULL, "RON"},
- {"Int Spk", NULL, "LOP"},
- {"Int Spk", NULL, "LON"},
- {"Mic Bias", NULL, "Mic Jack"},
- {"IN1L", NULL, "Mic Bias"},
-};
-
-static const struct snd_kcontrol_new harmony_controls[] = {
- SOC_DAPM_PIN_SWITCH("Int Spk"),
-};
-
-static int harmony_asoc_init(struct snd_soc_pcm_runtime *rtd)
-{
- struct snd_soc_codec *codec = rtd->codec;
- struct snd_soc_dapm_context *dapm = &codec->dapm;
- struct snd_soc_card *card = codec->card;
- struct tegra_harmony *harmony = snd_soc_card_get_drvdata(card);
- struct tegra_wm8903_platform_data *pdata = harmony->pdata;
- int ret;
-
- ret = gpio_request(pdata->gpio_spkr_en, "spkr_en");
- if (ret) {
- dev_err(card->dev, "cannot get spkr_en gpio\n");
- return ret;
- }
- harmony->gpio_requested |= GPIO_SPKR_EN;
-
- gpio_direction_output(pdata->gpio_spkr_en, 0);
-
- ret = gpio_request(pdata->gpio_int_mic_en, "int_mic_en");
- if (ret) {
- dev_err(card->dev, "cannot get int_mic_en gpio\n");
- return ret;
- }
- harmony->gpio_requested |= GPIO_INT_MIC_EN;
-
- /* Disable int mic; enable signal is active-high */
- gpio_direction_output(pdata->gpio_int_mic_en, 0);
-
- ret = gpio_request(pdata->gpio_ext_mic_en, "ext_mic_en");
- if (ret) {
- dev_err(card->dev, "cannot get ext_mic_en gpio\n");
- return ret;
- }
- harmony->gpio_requested |= GPIO_EXT_MIC_EN;
-
- /* Enable ext mic; enable signal is active-low */
- gpio_direction_output(pdata->gpio_ext_mic_en, 0);
-
- ret = snd_soc_add_controls(codec, harmony_controls,
- ARRAY_SIZE(harmony_controls));
- if (ret < 0)
- return ret;
-
- snd_soc_dapm_new_controls(dapm, harmony_dapm_widgets,
- ARRAY_SIZE(harmony_dapm_widgets));
-
- snd_soc_dapm_add_routes(dapm, harmony_audio_map,
- ARRAY_SIZE(harmony_audio_map));
-
- harmony_hp_jack_gpios[0].gpio = pdata->gpio_hp_det;
- snd_soc_jack_new(codec, "Headphone Jack", SND_JACK_HEADPHONE,
- &harmony_hp_jack);
- snd_soc_jack_add_pins(&harmony_hp_jack,
- ARRAY_SIZE(harmony_hp_jack_pins),
- harmony_hp_jack_pins);
- snd_soc_jack_add_gpios(&harmony_hp_jack,
- ARRAY_SIZE(harmony_hp_jack_gpios),
- harmony_hp_jack_gpios);
-
- snd_soc_jack_new(codec, "Mic Jack", SND_JACK_MICROPHONE,
- &harmony_mic_jack);
- snd_soc_jack_add_pins(&harmony_mic_jack,
- ARRAY_SIZE(harmony_mic_jack_pins),
- harmony_mic_jack_pins);
- wm8903_mic_detect(codec, &harmony_mic_jack, SND_JACK_MICROPHONE, 0);
-
- snd_soc_dapm_force_enable_pin(dapm, "Mic Bias");
-
- snd_soc_dapm_nc_pin(dapm, "IN3L");
- snd_soc_dapm_nc_pin(dapm, "IN3R");
- snd_soc_dapm_nc_pin(dapm, "LINEOUTL");
- snd_soc_dapm_nc_pin(dapm, "LINEOUTR");
-
- snd_soc_dapm_sync(dapm);
-
- return 0;
-}
-
-static struct snd_soc_dai_link harmony_wm8903_dai = {
- .name = "WM8903",
- .stream_name = "WM8903 PCM",
- .codec_name = "wm8903.0-001a",
- .platform_name = "tegra-pcm-audio",
- .cpu_dai_name = "tegra-i2s.0",
- .codec_dai_name = "wm8903-hifi",
- .init = harmony_asoc_init,
- .ops = &harmony_asoc_ops,
-};
-
-static struct snd_soc_card snd_soc_harmony = {
- .name = "tegra-harmony",
- .dai_link = &harmony_wm8903_dai,
- .num_links = 1,
-};
-
-static __devinit int tegra_snd_harmony_probe(struct platform_device *pdev)
-{
- struct snd_soc_card *card = &snd_soc_harmony;
- struct tegra_harmony *harmony;
- struct tegra_wm8903_platform_data *pdata;
- int ret;
-
- if (!machine_is_harmony()) {
- dev_err(&pdev->dev, "Not running on Tegra Harmony!\n");
- return -ENODEV;
- }
-
- pdata = pdev->dev.platform_data;
- if (!pdata) {
- dev_err(&pdev->dev, "no platform data supplied\n");
- return -EINVAL;
- }
-
- harmony = kzalloc(sizeof(struct tegra_harmony), GFP_KERNEL);
- if (!harmony) {
- dev_err(&pdev->dev, "Can't allocate tegra_harmony\n");
- return -ENOMEM;
- }
-
- harmony->pdata = pdata;
-
- ret = tegra_asoc_utils_init(&harmony->util_data, &pdev->dev);
- if (ret)
- goto err_free_harmony;
-
- card->dev = &pdev->dev;
- platform_set_drvdata(pdev, card);
- snd_soc_card_set_drvdata(card, harmony);
-
- ret = snd_soc_register_card(card);
- if (ret) {
- dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
- ret);
- goto err_clear_drvdata;
- }
-
- return 0;
-
-err_clear_drvdata:
- snd_soc_card_set_drvdata(card, NULL);
- platform_set_drvdata(pdev, NULL);
- card->dev = NULL;
- tegra_asoc_utils_fini(&harmony->util_data);
-err_free_harmony:
- kfree(harmony);
- return ret;
-}
-
-static int __devexit tegra_snd_harmony_remove(struct platform_device *pdev)
-{
- struct snd_soc_card *card = platform_get_drvdata(pdev);
- struct tegra_harmony *harmony = snd_soc_card_get_drvdata(card);
- struct tegra_wm8903_platform_data *pdata = harmony->pdata;
-
- snd_soc_unregister_card(card);
-
- snd_soc_card_set_drvdata(card, NULL);
- platform_set_drvdata(pdev, NULL);
- card->dev = NULL;
-
- tegra_asoc_utils_fini(&harmony->util_data);
-
- if (harmony->gpio_requested & GPIO_EXT_MIC_EN)
- gpio_free(pdata->gpio_ext_mic_en);
- if (harmony->gpio_requested & GPIO_INT_MIC_EN)
- gpio_free(pdata->gpio_int_mic_en);
- if (harmony->gpio_requested & GPIO_SPKR_EN)
- gpio_free(pdata->gpio_spkr_en);
-
- kfree(harmony);
-
- return 0;
-}
-
-static struct platform_driver tegra_snd_harmony_driver = {
- .driver = {
- .name = DRV_NAME,
- .owner = THIS_MODULE,
- .pm = &snd_soc_pm_ops,
- },
- .probe = tegra_snd_harmony_probe,
- .remove = __devexit_p(tegra_snd_harmony_remove),
-};
-
-static int __init snd_tegra_harmony_init(void)
-{
- return platform_driver_register(&tegra_snd_harmony_driver);
-}
-module_init(snd_tegra_harmony_init);
-
-static void __exit snd_tegra_harmony_exit(void)
-{
- platform_driver_unregister(&tegra_snd_harmony_driver);
-}
-module_exit(snd_tegra_harmony_exit);
-
-MODULE_AUTHOR("Stephen Warren <swarren(a)nvidia.com>");
-MODULE_DESCRIPTION("Harmony machine ASoC driver");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/sound/soc/tegra/tegra_wm8903.c b/sound/soc/tegra/tegra_wm8903.c
new file mode 100644
index 0000000..0e31925
--- /dev/null
+++ b/sound/soc/tegra/tegra_wm8903.c
@@ -0,0 +1,395 @@
+/*
+ * tegra_wm8903.c - Tegra machine ASoC driver for boards using WM8903 codec.
+ *
+ * Author: Stephen Warren <swarren(a)nvidia.com>
+ * Copyright (C) 2010-2011 - NVIDIA, Inc.
+ *
+ * Based on code copyright/by:
+ *
+ * (c) 2009, 2010 Nvidia Graphics Pvt. Ltd.
+ *
+ * Copyright 2007 Wolfson Microelectronics PLC.
+ * Author: Graeme Gregory
+ * graeme.gregory(a)wolfsonmicro.com or linux(a)wolfsonmicro.com
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <asm/mach-types.h>
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/gpio.h>
+
+#include <mach/tegra_wm8903_pdata.h>
+
+#include <sound/core.h>
+#include <sound/jack.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#include "../codecs/wm8903.h"
+
+#include "tegra_das.h"
+#include "tegra_i2s.h"
+#include "tegra_pcm.h"
+#include "tegra_asoc_utils.h"
+
+#define DRV_NAME "tegra-snd-wm8903"
+
+#define GPIO_SPKR_EN BIT(0)
+#define GPIO_INT_MIC_EN BIT(1)
+#define GPIO_EXT_MIC_EN BIT(2)
+
+struct tegra_wm8903 {
+ struct tegra_asoc_utils_data util_data;
+ struct tegra_wm8903_platform_data *pdata;
+ int gpio_requested;
+};
+
+static int tegra_wm8903_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_dai *cpu_dai = rtd->cpu_dai;
+ struct snd_soc_codec *codec = rtd->codec;
+ struct snd_soc_card *card = codec->card;
+ struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
+ int srate, mclk, mclk_change;
+ int err;
+
+ srate = params_rate(params);
+ switch (srate) {
+ case 64000:
+ case 88200:
+ case 96000:
+ mclk = 128 * srate;
+ break;
+ default:
+ mclk = 256 * srate;
+ break;
+ }
+ /* FIXME: Codec only requires >= 3MHz if OSR==0 */
+ while (mclk < 6000000)
+ mclk *= 2;
+
+ err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk,
+ &mclk_change);
+ if (err < 0) {
+ dev_err(card->dev, "Can't configure clocks\n");
+ return err;
+ }
+
+ err = snd_soc_dai_set_fmt(codec_dai,
+ SND_SOC_DAIFMT_I2S |
+ SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBS_CFS);
+ if (err < 0) {
+ dev_err(card->dev, "codec_dai fmt not set\n");
+ return err;
+ }
+
+ err = snd_soc_dai_set_fmt(cpu_dai,
+ SND_SOC_DAIFMT_I2S |
+ SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBS_CFS);
+ if (err < 0) {
+ dev_err(card->dev, "cpu_dai fmt not set\n");
+ return err;
+ }
+
+ if (mclk_change) {
+ 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_wm8903_ops = {
+ .hw_params = tegra_wm8903_hw_params,
+};
+
+static struct snd_soc_jack tegra_wm8903_hp_jack;
+
+static struct snd_soc_jack_pin tegra_wm8903_hp_jack_pins[] = {
+ {
+ .pin = "Headphone Jack",
+ .mask = SND_JACK_HEADPHONE,
+ },
+};
+
+static struct snd_soc_jack_gpio tegra_wm8903_hp_jack_gpios[] = {
+ {
+ .name = "headphone detect",
+ .report = SND_JACK_HEADPHONE,
+ .debounce_time = 150,
+ .invert = 1,
+ }
+};
+
+static struct snd_soc_jack tegra_wm8903_mic_jack;
+
+static struct snd_soc_jack_pin tegra_wm8903_mic_jack_pins[] = {
+ {
+ .pin = "Mic Jack",
+ .mask = SND_JACK_MICROPHONE,
+ },
+};
+
+static int tegra_wm8903_event_int_spk(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *k, int event)
+{
+ struct snd_soc_codec *codec = w->codec;
+ struct snd_soc_card *card = codec->card;
+ struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
+ struct tegra_wm8903_platform_data *pdata = machine->pdata;
+
+ gpio_set_value_cansleep(pdata->gpio_spkr_en,
+ SND_SOC_DAPM_EVENT_ON(event));
+
+ return 0;
+}
+
+static const struct snd_soc_dapm_widget tegra_wm8903_dapm_widgets[] = {
+ SND_SOC_DAPM_SPK("Int Spk", tegra_wm8903_event_int_spk),
+ SND_SOC_DAPM_HP("Headphone Jack", NULL),
+ SND_SOC_DAPM_MIC("Mic Jack", NULL),
+};
+
+static const struct snd_soc_dapm_route harmony_audio_map[] = {
+ {"Headphone Jack", NULL, "HPOUTR"},
+ {"Headphone Jack", NULL, "HPOUTL"},
+ {"Int Spk", NULL, "ROP"},
+ {"Int Spk", NULL, "RON"},
+ {"Int Spk", NULL, "LOP"},
+ {"Int Spk", NULL, "LON"},
+ {"Mic Bias", NULL, "Mic Jack"},
+ {"IN1L", NULL, "Mic Bias"},
+};
+
+static const struct snd_kcontrol_new tegra_wm8903_controls[] = {
+ SOC_DAPM_PIN_SWITCH("Int Spk"),
+};
+
+static int tegra_wm8903_init(struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_soc_codec *codec = rtd->codec;
+ struct snd_soc_dapm_context *dapm = &codec->dapm;
+ struct snd_soc_card *card = codec->card;
+ struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
+ struct tegra_wm8903_platform_data *pdata = machine->pdata;
+ int ret;
+
+ ret = gpio_request(pdata->gpio_spkr_en, "spkr_en");
+ if (ret) {
+ dev_err(card->dev, "cannot get spkr_en gpio\n");
+ return ret;
+ }
+ machine->gpio_requested |= GPIO_SPKR_EN;
+
+ gpio_direction_output(pdata->gpio_spkr_en, 0);
+
+ ret = gpio_request(pdata->gpio_int_mic_en, "int_mic_en");
+ if (ret) {
+ dev_err(card->dev, "cannot get int_mic_en gpio\n");
+ return ret;
+ }
+ machine->gpio_requested |= GPIO_INT_MIC_EN;
+
+ /* Disable int mic; enable signal is active-high */
+ gpio_direction_output(pdata->gpio_int_mic_en, 0);
+
+ ret = gpio_request(pdata->gpio_ext_mic_en, "ext_mic_en");
+ if (ret) {
+ dev_err(card->dev, "cannot get ext_mic_en gpio\n");
+ return ret;
+ }
+ machine->gpio_requested |= GPIO_EXT_MIC_EN;
+
+ /* Enable ext mic; enable signal is active-low */
+ gpio_direction_output(pdata->gpio_ext_mic_en, 0);
+
+ ret = snd_soc_add_controls(codec, tegra_wm8903_controls,
+ ARRAY_SIZE(tegra_wm8903_controls));
+ if (ret < 0)
+ return ret;
+
+ snd_soc_dapm_new_controls(dapm, tegra_wm8903_dapm_widgets,
+ ARRAY_SIZE(tegra_wm8903_dapm_widgets));
+
+ snd_soc_dapm_add_routes(dapm, harmony_audio_map,
+ ARRAY_SIZE(harmony_audio_map));
+
+ tegra_wm8903_hp_jack_gpios[0].gpio = pdata->gpio_hp_det;
+ snd_soc_jack_new(codec, "Headphone Jack", SND_JACK_HEADPHONE,
+ &tegra_wm8903_hp_jack);
+ snd_soc_jack_add_pins(&tegra_wm8903_hp_jack,
+ ARRAY_SIZE(tegra_wm8903_hp_jack_pins),
+ tegra_wm8903_hp_jack_pins);
+ snd_soc_jack_add_gpios(&tegra_wm8903_hp_jack,
+ ARRAY_SIZE(tegra_wm8903_hp_jack_gpios),
+ tegra_wm8903_hp_jack_gpios);
+
+ snd_soc_jack_new(codec, "Mic Jack", SND_JACK_MICROPHONE,
+ &tegra_wm8903_mic_jack);
+ snd_soc_jack_add_pins(&tegra_wm8903_mic_jack,
+ ARRAY_SIZE(tegra_wm8903_mic_jack_pins),
+ tegra_wm8903_mic_jack_pins);
+ wm8903_mic_detect(codec, &tegra_wm8903_mic_jack, SND_JACK_MICROPHONE,
+ 0);
+
+ snd_soc_dapm_force_enable_pin(dapm, "Mic Bias");
+
+ snd_soc_dapm_nc_pin(dapm, "IN3L");
+ snd_soc_dapm_nc_pin(dapm, "IN3R");
+ snd_soc_dapm_nc_pin(dapm, "LINEOUTL");
+ snd_soc_dapm_nc_pin(dapm, "LINEOUTR");
+
+ snd_soc_dapm_sync(dapm);
+
+ return 0;
+}
+
+static struct snd_soc_dai_link tegra_wm8903_dai = {
+ .name = "WM8903",
+ .stream_name = "WM8903 PCM",
+ .codec_name = "wm8903.0-001a",
+ .platform_name = "tegra-pcm-audio",
+ .cpu_dai_name = "tegra-i2s.0",
+ .codec_dai_name = "wm8903-hifi",
+ .init = tegra_wm8903_init,
+ .ops = &tegra_wm8903_ops,
+};
+
+static struct snd_soc_card snd_soc_tegra_wm8903 = {
+ .name = "tegra-wm8903",
+ .dai_link = &tegra_wm8903_dai,
+ .num_links = 1,
+};
+
+static __devinit int tegra_wm8903_driver_probe(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = &snd_soc_tegra_wm8903;
+ struct tegra_wm8903 *machine;
+ struct tegra_wm8903_platform_data *pdata;
+ int ret;
+
+ if (!machine_is_harmony()) {
+ dev_err(&pdev->dev, "Not running on Tegra Harmony!\n");
+ return -ENODEV;
+ }
+
+ pdata = pdev->dev.platform_data;
+ if (!pdata) {
+ dev_err(&pdev->dev, "no platform data supplied\n");
+ return -EINVAL;
+ }
+
+ machine = kzalloc(sizeof(struct tegra_wm8903), GFP_KERNEL);
+ if (!machine) {
+ dev_err(&pdev->dev, "Can't allocate tegra_wm8903 struct\n");
+ return -ENOMEM;
+ }
+
+ machine->pdata = pdata;
+
+ ret = tegra_asoc_utils_init(&machine->util_data, &pdev->dev);
+ if (ret)
+ goto err_free_machine;
+
+ card->dev = &pdev->dev;
+ platform_set_drvdata(pdev, card);
+ snd_soc_card_set_drvdata(card, machine);
+
+ ret = snd_soc_register_card(card);
+ if (ret) {
+ dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
+ ret);
+ goto err_clear_drvdata;
+ }
+
+ return 0;
+
+err_clear_drvdata:
+ snd_soc_card_set_drvdata(card, NULL);
+ platform_set_drvdata(pdev, NULL);
+ card->dev = NULL;
+ tegra_asoc_utils_fini(&machine->util_data);
+err_free_machine:
+ kfree(machine);
+ return ret;
+}
+
+static int __devexit tegra_wm8903_driver_remove(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = platform_get_drvdata(pdev);
+ struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
+ struct tegra_wm8903_platform_data *pdata = machine->pdata;
+
+ snd_soc_unregister_card(card);
+
+ snd_soc_card_set_drvdata(card, NULL);
+ platform_set_drvdata(pdev, NULL);
+ card->dev = NULL;
+
+ tegra_asoc_utils_fini(&machine->util_data);
+
+ if (machine->gpio_requested & GPIO_EXT_MIC_EN)
+ gpio_free(pdata->gpio_ext_mic_en);
+ if (machine->gpio_requested & GPIO_INT_MIC_EN)
+ gpio_free(pdata->gpio_int_mic_en);
+ if (machine->gpio_requested & GPIO_SPKR_EN)
+ gpio_free(pdata->gpio_spkr_en);
+
+ kfree(machine);
+
+ return 0;
+}
+
+static struct platform_driver tegra_wm8903_driver = {
+ .driver = {
+ .name = DRV_NAME,
+ .owner = THIS_MODULE,
+ .pm = &snd_soc_pm_ops,
+ },
+ .probe = tegra_wm8903_driver_probe,
+ .remove = __devexit_p(tegra_wm8903_driver_remove),
+};
+
+static int __init tegra_wm8903_modinit(void)
+{
+ return platform_driver_register(&tegra_wm8903_driver);
+}
+module_init(tegra_wm8903_modinit);
+
+static void __exit tegra_wm8903_modexit(void)
+{
+ platform_driver_unregister(&tegra_wm8903_driver);
+}
+module_exit(tegra_wm8903_modexit);
+
+MODULE_AUTHOR("Stephen Warren <swarren(a)nvidia.com>");
+MODULE_DESCRIPTION("Tegra+WM8903 machine ASoC driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRV_NAME);
--
1.7.1
