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-rw-r--r--sound/soc/tegra/Kconfig19
-rw-r--r--sound/soc/tegra/Makefile2
-rw-r--r--sound/soc/tegra/tegra_wm8753.c423
3 files changed, 444 insertions, 0 deletions
diff --git a/sound/soc/tegra/Kconfig b/sound/soc/tegra/Kconfig
index d44044bf2f8f..f51b62570194 100644
--- a/sound/soc/tegra/Kconfig
+++ b/sound/soc/tegra/Kconfig
@@ -67,3 +67,22 @@ 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 MACH_HAS_SND_SOC_TEGRA_WM8753
+ bool
+ help
+ Machines that use the SND_SOC_TEGRA_WM8753 driver should select
+ this config option, in order to allow the user to enable
+ SND_SOC_TEGRA_WM8753.
+
+config SND_SOC_TEGRA_WM8753
+ tristate "SoC Audio support for Tegra boards using a WM8753 codec"
+ depends on SND_SOC_TEGRA && I2C
+ depends on MACH_HAS_SND_SOC_TEGRA_WM8753
+ select SND_SOC_TEGRA20_I2S if ARCH_TEGRA_2x_SOC
+ select SND_SOC_TEGRA30_I2S if ARCH_TEGRA_3x_SOC
+ select SND_SOC_WM8753
+ help
+ Say Y or M here if you want to add support for SoC audio on Tegra
+ boards using the WM8093 codec. Currently, only supported board is
+ Whistler.
diff --git a/sound/soc/tegra/Makefile b/sound/soc/tegra/Makefile
index fafef4f8384e..a6d039b0dc19 100644
--- a/sound/soc/tegra/Makefile
+++ b/sound/soc/tegra/Makefile
@@ -18,6 +18,8 @@ obj-$(CONFIG_SND_SOC_TEGRA_SPDIF) += snd-soc-tegra-spdif.o
# Tegra machine Support
snd-soc-tegra-wm8903-objs := tegra_wm8903.o
snd-soc-tegra-trimslice-objs := trimslice.o
+snd-soc-tegra-wm8753-objs := tegra_wm8753.o
obj-$(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_WM8753) += snd-soc-tegra-wm8753.o
diff --git a/sound/soc/tegra/tegra_wm8753.c b/sound/soc/tegra/tegra_wm8753.c
new file mode 100644
index 000000000000..ffd97bbffc2f
--- /dev/null
+++ b/sound/soc/tegra/tegra_wm8753.c
@@ -0,0 +1,423 @@
+/*
+ * tegra_wm8753.c - Tegra machine ASoC driver for boards using WM8753 codec.
+ *
+ * Author: Sumit Bhattacharya <sumitb@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@wolfsonmicro.com or linux@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_wm8753_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/wm8753.h"
+
+#include "tegra_pcm.h"
+#include "tegra_asoc_utils.h"
+
+#define DRV_NAME "tegra-snd-wm8753"
+
+#define GPIO_SPKR_EN BIT(0)
+#define GPIO_HP_MUTE BIT(1)
+#define GPIO_INT_MIC_EN BIT(2)
+#define GPIO_EXT_MIC_EN BIT(3)
+
+struct tegra_wm8753 {
+ struct tegra_asoc_utils_data util_data;
+ struct tegra_wm8753_platform_data *pdata;
+ int gpio_requested;
+};
+
+static int tegra_wm8753_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_wm8753 *machine = snd_soc_card_get_drvdata(card);
+ int srate, mclk;
+ int err;
+
+ srate = params_rate(params);
+ switch (srate) {
+ case 8000:
+ case 16000:
+ case 24000:
+ case 32000:
+ case 48000:
+ case 64000:
+ case 96000:
+ mclk = 12288000;
+ break;
+ case 11025:
+ case 22050:
+ case 44100:
+ case 88200:
+ mclk = 11289600;
+ break;
+ default:
+ mclk = 12000000;
+ break;
+ }
+
+ err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk);
+ 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;
+ }
+
+ 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_wm8753_ops = {
+ .hw_params = tegra_wm8753_hw_params,
+};
+
+static struct snd_soc_jack tegra_wm8753_hp_jack;
+
+static struct snd_soc_jack_pin tegra_wm8753_hp_jack_pins[] = {
+ {
+ .pin = "Headphone Jack",
+ .mask = SND_JACK_HEADPHONE,
+ },
+};
+
+static struct snd_soc_jack_gpio tegra_wm8753_hp_jack_gpio = {
+ .name = "headphone detect",
+ .report = SND_JACK_HEADPHONE,
+ .debounce_time = 150,
+ .invert = 0,
+};
+
+static int tegra_wm8753_event_int_spk(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *k, int event)
+{
+ struct snd_soc_dapm_context *dapm = w->dapm;
+ struct snd_soc_card *card = dapm->card;
+ struct tegra_wm8753 *machine = snd_soc_card_get_drvdata(card);
+ struct tegra_wm8753_platform_data *pdata = machine->pdata;
+
+ if (!(machine->gpio_requested & GPIO_SPKR_EN))
+ return 0;
+
+ gpio_set_value_cansleep(pdata->gpio_spkr_en,
+ SND_SOC_DAPM_EVENT_ON(event));
+
+ return 0;
+}
+
+static int tegra_wm8753_event_hp(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *k, int event)
+{
+ struct snd_soc_dapm_context *dapm = w->dapm;
+ struct snd_soc_card *card = dapm->card;
+ struct tegra_wm8753 *machine = snd_soc_card_get_drvdata(card);
+ struct tegra_wm8753_platform_data *pdata = machine->pdata;
+
+ if (!(machine->gpio_requested & GPIO_HP_MUTE))
+ return 0;
+
+ gpio_set_value_cansleep(pdata->gpio_hp_mute,
+ !SND_SOC_DAPM_EVENT_ON(event));
+
+ return 0;
+}
+
+static const struct snd_soc_dapm_widget tegra_wm8753_dapm_widgets[] = {
+ SND_SOC_DAPM_SPK("Int Spk", tegra_wm8753_event_int_spk),
+ SND_SOC_DAPM_OUTPUT("Earpiece"),
+ SND_SOC_DAPM_OUTPUT("Mono Out"),
+ SND_SOC_DAPM_HP("Headphone Jack", tegra_wm8753_event_hp),
+ SND_SOC_DAPM_MIC("Mic Jack", NULL),
+ SND_SOC_DAPM_INPUT("Int Mic"),
+ SND_SOC_DAPM_LINE("LineIn Jack", NULL),
+};
+
+static const struct snd_soc_dapm_route whistler_audio_map[] = {
+ {"Int Spk", NULL, "ROUT1"},
+ {"Int Spk", NULL, "LOUT1"},
+ {"Earpiece", NULL, "ROUT2"},
+ {"Earpiece", NULL, "LOUT2"},
+ {"Mono Out", NULL, "MONO1"},
+ {"Mono Out", NULL, "MONO2"},
+ {"Headphone Jack", NULL, "ROUT1"},
+ {"Headphone Jack", NULL, "LOUT1"},
+ {"Mic Bias", NULL, "Mic Jack"},
+ {"MIC1", NULL, "Mic Bias"},
+ {"Mic Bias", NULL, "Int Mic"},
+ {"MIC2", NULL, "Mic Bias"},
+ {"MIC2N", NULL, "Mic Bias"},
+ {"LINE1", NULL, "LineIn Jack"},
+ {"LINE2", NULL, "LineIn Jack"},
+};
+
+static const struct snd_kcontrol_new tegra_wm8753_controls[] = {
+ SOC_DAPM_PIN_SWITCH("Int Spk"),
+ SOC_DAPM_PIN_SWITCH("Earpiece"),
+ SOC_DAPM_PIN_SWITCH("Mono Out"),
+ SOC_DAPM_PIN_SWITCH("Headphone Jack"),
+ SOC_DAPM_PIN_SWITCH("Mic Jack"),
+ SOC_DAPM_PIN_SWITCH("Int Mic"),
+ SOC_DAPM_PIN_SWITCH("LineIn Jack"),
+};
+
+static int tegra_wm8753_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_wm8753 *machine = snd_soc_card_get_drvdata(card);
+ struct tegra_wm8753_platform_data *pdata = machine->pdata;
+ int ret;
+
+ if (gpio_is_valid(pdata->gpio_spkr_en)) {
+ 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);
+ }
+
+ if (gpio_is_valid(pdata->gpio_hp_mute)) {
+ ret = gpio_request(pdata->gpio_hp_mute, "hp_mute");
+ if (ret) {
+ dev_err(card->dev, "cannot get hp_mute gpio\n");
+ return ret;
+ }
+ machine->gpio_requested |= GPIO_HP_MUTE;
+
+ gpio_direction_output(pdata->gpio_hp_mute, 0);
+ }
+
+ if (gpio_is_valid(pdata->gpio_int_mic_en)) {
+ 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);
+ }
+
+ if (gpio_is_valid(pdata->gpio_ext_mic_en)) {
+ 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_wm8753_controls,
+ ARRAY_SIZE(tegra_wm8753_controls));
+ if (ret < 0)
+ return ret;
+
+ snd_soc_dapm_new_controls(dapm, tegra_wm8753_dapm_widgets,
+ ARRAY_SIZE(tegra_wm8753_dapm_widgets));
+
+ snd_soc_dapm_add_routes(dapm, whistler_audio_map,
+ ARRAY_SIZE(whistler_audio_map));
+
+ if (gpio_is_valid(pdata->gpio_hp_det)) {
+ tegra_wm8753_hp_jack_gpio.gpio = pdata->gpio_hp_det;
+ snd_soc_jack_new(codec, "Headphone Jack", SND_JACK_HEADPHONE,
+ &tegra_wm8753_hp_jack);
+ snd_soc_jack_add_pins(&tegra_wm8753_hp_jack,
+ ARRAY_SIZE(tegra_wm8753_hp_jack_pins),
+ tegra_wm8753_hp_jack_pins);
+ snd_soc_jack_add_gpios(&tegra_wm8753_hp_jack,
+ 1,
+ &tegra_wm8753_hp_jack_gpio);
+ }
+
+ snd_soc_dapm_nc_pin(dapm, "ACIN");
+ snd_soc_dapm_nc_pin(dapm, "ACOP");
+ snd_soc_dapm_nc_pin(dapm, "OUT3");
+ snd_soc_dapm_nc_pin(dapm, "OUT4");
+
+ snd_soc_dapm_sync(dapm);
+
+ return 0;
+}
+
+static struct snd_soc_dai_link tegra_wm8753_dai = {
+ .name = "WM8753",
+ .stream_name = "WM8753 PCM HIFI",
+ .codec_name = "wm8753-codec.4-001a",
+ .platform_name = "tegra-pcm-audio",
+ .cpu_dai_name = "tegra20-i2s.0",
+ .codec_dai_name = "wm8753-hifi",
+ .init = tegra_wm8753_init,
+ .ops = &tegra_wm8753_ops,
+};
+
+static struct snd_soc_card snd_soc_tegra_wm8753 = {
+ .name = "tegra-wm8753",
+ .dai_link = &tegra_wm8753_dai,
+ .num_links = 1,
+};
+
+static __devinit int tegra_wm8753_driver_probe(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = &snd_soc_tegra_wm8753;
+ struct tegra_wm8753 *machine;
+ struct tegra_wm8753_platform_data *pdata;
+ int ret;
+
+ pdata = pdev->dev.platform_data;
+ if (!pdata) {
+ dev_err(&pdev->dev, "No platform data supplied\n");
+ return -EINVAL;
+ }
+
+ machine = kzalloc(sizeof(struct tegra_wm8753), GFP_KERNEL);
+ if (!machine) {
+ dev_err(&pdev->dev, "Can't allocate tegra_wm8753 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_fini_utils;
+ }
+
+ return 0;
+
+err_fini_utils:
+ tegra_asoc_utils_fini(&machine->util_data);
+err_free_machine:
+ kfree(machine);
+ return ret;
+}
+
+static int __devexit tegra_wm8753_driver_remove(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = platform_get_drvdata(pdev);
+ struct tegra_wm8753 *machine = snd_soc_card_get_drvdata(card);
+ struct tegra_wm8753_platform_data *pdata = machine->pdata;
+
+ snd_soc_unregister_card(card);
+
+ 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_HP_MUTE)
+ gpio_free(pdata->gpio_hp_mute);
+ if (machine->gpio_requested & GPIO_SPKR_EN)
+ gpio_free(pdata->gpio_spkr_en);
+
+ kfree(machine);
+
+ return 0;
+}
+
+static struct platform_driver tegra_wm8753_driver = {
+ .driver = {
+ .name = DRV_NAME,
+ .owner = THIS_MODULE,
+ .pm = &snd_soc_pm_ops,
+ },
+ .probe = tegra_wm8753_driver_probe,
+ .remove = __devexit_p(tegra_wm8753_driver_remove),
+};
+
+static int __init tegra_wm8753_modinit(void)
+{
+ return platform_driver_register(&tegra_wm8753_driver);
+}
+module_init(tegra_wm8753_modinit);
+
+static void __exit tegra_wm8753_modexit(void)
+{
+ platform_driver_unregister(&tegra_wm8753_driver);
+}
+module_exit(tegra_wm8753_modexit);
+
+MODULE_AUTHOR("Sumit Bhattacharya <sumitb@nvidia.com>");
+MODULE_DESCRIPTION("Tegra+WM8753 machine ASoC driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRV_NAME);
generated by cgit v1.2.3 (git 2.0.4) at 2024-12-26 07:19:35 +0000