From dc0a50afa67c3dbd51211881b7568917dbbc6861 Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Tue, 12 Apr 2011 11:40:36 -0600 Subject: ASoC: Tegra: Rename harmony.c to tegra_wm8903.c 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 Acked-by: Liam Girdwood Signed-off-by: Mark Brown --- sound/soc/tegra/tegra_wm8903.c | 395 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 395 insertions(+) create mode 100644 sound/soc/tegra/tegra_wm8903.c (limited to 'sound/soc/tegra/tegra_wm8903.c') diff --git a/sound/soc/tegra/tegra_wm8903.c b/sound/soc/tegra/tegra_wm8903.c new file mode 100644 index 000000000000..0e31925b9d56 --- /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 + * 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 + +#include +#include +#include +#include + +#include + +#include +#include +#include +#include +#include + +#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 "); +MODULE_DESCRIPTION("Tegra+WM8903 machine ASoC driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:" DRV_NAME); -- cgit v1.2.3