160 строки
3.9 KiB
C
160 строки
3.9 KiB
C
/*
|
|
* Copyright (C) 2009, Lars-Peter Clausen <lars@metafoo.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.
|
|
*
|
|
* 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.,
|
|
* 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/moduleparam.h>
|
|
#include <linux/timer.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/platform_device.h>
|
|
#include <sound/core.h>
|
|
#include <sound/pcm.h>
|
|
#include <sound/soc.h>
|
|
#include <linux/gpio.h>
|
|
|
|
#define QI_LB60_SND_GPIO JZ_GPIO_PORTB(29)
|
|
#define QI_LB60_AMP_GPIO JZ_GPIO_PORTD(4)
|
|
|
|
static int qi_lb60_spk_event(struct snd_soc_dapm_widget *widget,
|
|
struct snd_kcontrol *ctrl, int event)
|
|
{
|
|
int on = 0;
|
|
if (event & SND_SOC_DAPM_POST_PMU)
|
|
on = 1;
|
|
else if (event & SND_SOC_DAPM_PRE_PMD)
|
|
on = 0;
|
|
|
|
gpio_set_value(QI_LB60_SND_GPIO, on);
|
|
gpio_set_value(QI_LB60_AMP_GPIO, on);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct snd_soc_dapm_widget qi_lb60_widgets[] = {
|
|
SND_SOC_DAPM_SPK("Speaker", qi_lb60_spk_event),
|
|
SND_SOC_DAPM_MIC("Mic", NULL),
|
|
};
|
|
|
|
static const struct snd_soc_dapm_route qi_lb60_routes[] = {
|
|
{"Mic", NULL, "MIC"},
|
|
{"Speaker", NULL, "LOUT"},
|
|
{"Speaker", NULL, "ROUT"},
|
|
};
|
|
|
|
#define QI_LB60_DAIFMT (SND_SOC_DAIFMT_I2S | \
|
|
SND_SOC_DAIFMT_NB_NF | \
|
|
SND_SOC_DAIFMT_CBM_CFM)
|
|
|
|
static int qi_lb60_codec_init(struct snd_soc_pcm_runtime *rtd)
|
|
{
|
|
struct snd_soc_codec *codec = rtd->codec;
|
|
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
|
|
struct snd_soc_dapm_context *dapm = &codec->dapm;
|
|
int ret;
|
|
|
|
snd_soc_dapm_nc_pin(dapm, "LIN");
|
|
snd_soc_dapm_nc_pin(dapm, "RIN");
|
|
|
|
ret = snd_soc_dai_set_fmt(cpu_dai, QI_LB60_DAIFMT);
|
|
if (ret < 0) {
|
|
dev_err(codec->dev, "Failed to set cpu dai format: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
snd_soc_dapm_new_controls(dapm, qi_lb60_widgets,
|
|
ARRAY_SIZE(qi_lb60_widgets));
|
|
snd_soc_dapm_add_routes(dapm, qi_lb60_routes,
|
|
ARRAY_SIZE(qi_lb60_routes));
|
|
snd_soc_dapm_sync(dapm);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct snd_soc_dai_link qi_lb60_dai = {
|
|
.name = "jz4740",
|
|
.stream_name = "jz4740",
|
|
.cpu_dai_name = "jz4740-i2s",
|
|
.platform_name = "jz4740-pcm-audio",
|
|
.codec_dai_name = "jz4740-hifi",
|
|
.codec_name = "jz4740-codec",
|
|
.init = qi_lb60_codec_init,
|
|
};
|
|
|
|
static struct snd_soc_card qi_lb60 = {
|
|
.name = "QI LB60",
|
|
.dai_link = &qi_lb60_dai,
|
|
.num_links = 1,
|
|
};
|
|
|
|
static struct platform_device *qi_lb60_snd_device;
|
|
|
|
static int __init qi_lb60_init(void)
|
|
{
|
|
int ret;
|
|
|
|
qi_lb60_snd_device = platform_device_alloc("soc-audio", -1);
|
|
|
|
if (!qi_lb60_snd_device)
|
|
return -ENOMEM;
|
|
|
|
ret = gpio_request(QI_LB60_SND_GPIO, "SND");
|
|
if (ret) {
|
|
pr_err("qi_lb60 snd: Failed to request SND GPIO(%d): %d\n",
|
|
QI_LB60_SND_GPIO, ret);
|
|
goto err_device_put;
|
|
}
|
|
|
|
ret = gpio_request(QI_LB60_AMP_GPIO, "AMP");
|
|
if (ret) {
|
|
pr_err("qi_lb60 snd: Failed to request AMP GPIO(%d): %d\n",
|
|
QI_LB60_AMP_GPIO, ret);
|
|
goto err_gpio_free_snd;
|
|
}
|
|
|
|
gpio_direction_output(QI_LB60_SND_GPIO, 0);
|
|
gpio_direction_output(QI_LB60_AMP_GPIO, 0);
|
|
|
|
platform_set_drvdata(qi_lb60_snd_device, &qi_lb60);
|
|
|
|
ret = platform_device_add(qi_lb60_snd_device);
|
|
if (ret) {
|
|
pr_err("qi_lb60 snd: Failed to add snd soc device: %d\n", ret);
|
|
goto err_unset_pdata;
|
|
}
|
|
|
|
return 0;
|
|
|
|
err_unset_pdata:
|
|
platform_set_drvdata(qi_lb60_snd_device, NULL);
|
|
/*err_gpio_free_amp:*/
|
|
gpio_free(QI_LB60_AMP_GPIO);
|
|
err_gpio_free_snd:
|
|
gpio_free(QI_LB60_SND_GPIO);
|
|
err_device_put:
|
|
platform_device_put(qi_lb60_snd_device);
|
|
|
|
return ret;
|
|
}
|
|
module_init(qi_lb60_init);
|
|
|
|
static void __exit qi_lb60_exit(void)
|
|
{
|
|
gpio_free(QI_LB60_AMP_GPIO);
|
|
gpio_free(QI_LB60_SND_GPIO);
|
|
platform_device_unregister(qi_lb60_snd_device);
|
|
}
|
|
module_exit(qi_lb60_exit);
|
|
|
|
MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
|
|
MODULE_DESCRIPTION("ALSA SoC QI LB60 Audio support");
|
|
MODULE_LICENSE("GPL v2");
|