d01d7d3dba
The dapm field of the snd_soc_codec struct will eventually be removed (replaced with the DAPM context from the component embedded inside the CODEC). Replace its usage with the card's DAPM context. The idea is that DAPM is hierarchical and with the card at the root it is possible to access widgets from other contexts through the card context. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Mark Brown <broonie@kernel.org>
262 lines
6.2 KiB
C
262 lines
6.2 KiB
C
/* sound/soc/samsung/smartq_wm8987.c
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*
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* Copyright 2010 Maurus Cuelenaere <mcuelenaere@gmail.com>
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*
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* Based on smdk6410_wm8987.c
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* Copyright 2007 Wolfson Microelectronics PLC. - linux@wolfsonmicro.com
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* Graeme Gregory - graeme.gregory@wolfsonmicro.com
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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*/
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#include <linux/gpio.h>
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#include <linux/module.h>
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#include <sound/soc.h>
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#include <sound/jack.h>
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#include <mach/gpio-samsung.h>
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#include <asm/mach-types.h>
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#include "i2s.h"
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#include "../codecs/wm8750.h"
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/*
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* WM8987 is register compatible with WM8750, so using that as base driver.
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*/
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static struct snd_soc_card snd_soc_smartq;
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static int smartq_hifi_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_dai *codec_dai = rtd->codec_dai;
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struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
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unsigned int clk = 0;
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int ret;
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switch (params_rate(params)) {
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case 8000:
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case 16000:
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case 32000:
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case 48000:
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case 96000:
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clk = 12288000;
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break;
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case 11025:
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case 22050:
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case 44100:
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case 88200:
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clk = 11289600;
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break;
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}
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/* Use PCLK for I2S signal generation */
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ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_RCLKSRC_0,
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0, SND_SOC_CLOCK_IN);
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if (ret < 0)
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return ret;
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/* Gate the RCLK output on PAD */
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ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_CDCLK,
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0, SND_SOC_CLOCK_IN);
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if (ret < 0)
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return ret;
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/* set the codec system clock for DAC and ADC */
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ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk,
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SND_SOC_CLOCK_IN);
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if (ret < 0)
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return ret;
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return 0;
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}
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/*
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* SmartQ WM8987 HiFi DAI operations.
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*/
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static struct snd_soc_ops smartq_hifi_ops = {
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.hw_params = smartq_hifi_hw_params,
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};
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static struct snd_soc_jack smartq_jack;
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static struct snd_soc_jack_pin smartq_jack_pins[] = {
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/* Disable speaker when headphone is plugged in */
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{
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.pin = "Internal Speaker",
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.mask = SND_JACK_HEADPHONE,
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},
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};
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static struct snd_soc_jack_gpio smartq_jack_gpios[] = {
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{
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.gpio = S3C64XX_GPL(12),
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.name = "headphone detect",
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.report = SND_JACK_HEADPHONE,
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.debounce_time = 200,
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},
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};
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static const struct snd_kcontrol_new wm8987_smartq_controls[] = {
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SOC_DAPM_PIN_SWITCH("Internal Speaker"),
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SOC_DAPM_PIN_SWITCH("Headphone Jack"),
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SOC_DAPM_PIN_SWITCH("Internal Mic"),
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};
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static int smartq_speaker_event(struct snd_soc_dapm_widget *w,
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struct snd_kcontrol *k,
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int event)
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{
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gpio_set_value(S3C64XX_GPK(12), SND_SOC_DAPM_EVENT_OFF(event));
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return 0;
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}
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static const struct snd_soc_dapm_widget wm8987_dapm_widgets[] = {
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SND_SOC_DAPM_SPK("Internal Speaker", smartq_speaker_event),
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SND_SOC_DAPM_HP("Headphone Jack", NULL),
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SND_SOC_DAPM_MIC("Internal Mic", NULL),
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};
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static const struct snd_soc_dapm_route audio_map[] = {
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{"Headphone Jack", NULL, "LOUT2"},
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{"Headphone Jack", NULL, "ROUT2"},
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{"Internal Speaker", NULL, "LOUT2"},
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{"Internal Speaker", NULL, "ROUT2"},
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{"Mic Bias", NULL, "Internal Mic"},
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{"LINPUT2", NULL, "Mic Bias"},
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};
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static int smartq_wm8987_init(struct snd_soc_pcm_runtime *rtd)
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{
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struct snd_soc_dapm_context *dapm = &rtd->card->dapm;
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int err = 0;
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/* set endpoints to not connected */
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snd_soc_dapm_nc_pin(dapm, "LINPUT1");
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snd_soc_dapm_nc_pin(dapm, "RINPUT1");
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snd_soc_dapm_nc_pin(dapm, "OUT3");
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snd_soc_dapm_nc_pin(dapm, "ROUT1");
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/* Headphone jack detection */
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err = snd_soc_card_jack_new(rtd->card, "Headphone Jack",
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SND_JACK_HEADPHONE, &smartq_jack,
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smartq_jack_pins,
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ARRAY_SIZE(smartq_jack_pins));
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if (err)
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return err;
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err = snd_soc_jack_add_gpios(&smartq_jack,
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ARRAY_SIZE(smartq_jack_gpios),
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smartq_jack_gpios);
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return err;
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}
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static int smartq_wm8987_card_remove(struct snd_soc_card *card)
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{
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snd_soc_jack_free_gpios(&smartq_jack, ARRAY_SIZE(smartq_jack_gpios),
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smartq_jack_gpios);
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return 0;
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}
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static struct snd_soc_dai_link smartq_dai[] = {
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{
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.name = "wm8987",
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.stream_name = "SmartQ Hi-Fi",
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.cpu_dai_name = "samsung-i2s.0",
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.codec_dai_name = "wm8750-hifi",
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.platform_name = "samsung-i2s.0",
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.codec_name = "wm8750.0-0x1a",
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.init = smartq_wm8987_init,
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBS_CFS,
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.ops = &smartq_hifi_ops,
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},
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};
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static struct snd_soc_card snd_soc_smartq = {
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.name = "SmartQ",
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.owner = THIS_MODULE,
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.remove = smartq_wm8987_card_remove,
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.dai_link = smartq_dai,
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.num_links = ARRAY_SIZE(smartq_dai),
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.dapm_widgets = wm8987_dapm_widgets,
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.num_dapm_widgets = ARRAY_SIZE(wm8987_dapm_widgets),
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.dapm_routes = audio_map,
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.num_dapm_routes = ARRAY_SIZE(audio_map),
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.controls = wm8987_smartq_controls,
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.num_controls = ARRAY_SIZE(wm8987_smartq_controls),
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};
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static struct platform_device *smartq_snd_device;
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static int __init smartq_init(void)
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{
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int ret;
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if (!machine_is_smartq7() && !machine_is_smartq5()) {
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pr_info("Only SmartQ is supported by this ASoC driver\n");
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return -ENODEV;
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}
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smartq_snd_device = platform_device_alloc("soc-audio", -1);
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if (!smartq_snd_device)
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return -ENOMEM;
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platform_set_drvdata(smartq_snd_device, &snd_soc_smartq);
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ret = platform_device_add(smartq_snd_device);
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if (ret) {
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platform_device_put(smartq_snd_device);
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return ret;
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}
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/* Initialise GPIOs used by amplifiers */
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ret = gpio_request(S3C64XX_GPK(12), "amplifiers shutdown");
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if (ret) {
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dev_err(&smartq_snd_device->dev, "Failed to register GPK12\n");
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goto err_unregister_device;
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}
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/* Disable amplifiers */
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ret = gpio_direction_output(S3C64XX_GPK(12), 1);
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if (ret) {
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dev_err(&smartq_snd_device->dev, "Failed to configure GPK12\n");
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goto err_free_gpio_amp_shut;
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}
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return 0;
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err_free_gpio_amp_shut:
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gpio_free(S3C64XX_GPK(12));
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err_unregister_device:
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platform_device_unregister(smartq_snd_device);
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return ret;
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}
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static void __exit smartq_exit(void)
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{
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gpio_free(S3C64XX_GPK(12));
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platform_device_unregister(smartq_snd_device);
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}
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module_init(smartq_init);
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module_exit(smartq_exit);
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/* Module information */
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MODULE_AUTHOR("Maurus Cuelenaere <mcuelenaere@gmail.com>");
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MODULE_DESCRIPTION("ALSA SoC SmartQ WM8987");
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MODULE_LICENSE("GPL");
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