505fb824e7
There is no need to include soc-dapm.h since soc.h includes it. Signed-off-by: Jarkko Nikula <jhnikula@gmail.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
140 lines
3.4 KiB
C
140 lines
3.4 KiB
C
/*
|
|
* overo.c -- SoC audio for Gumstix Overo
|
|
*
|
|
* Author: Steve Sakoman <steve@sakoman.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 <linux/clk.h>
|
|
#include <linux/platform_device.h>
|
|
#include <sound/core.h>
|
|
#include <sound/pcm.h>
|
|
#include <sound/soc.h>
|
|
|
|
#include <asm/mach-types.h>
|
|
#include <mach/hardware.h>
|
|
#include <mach/gpio.h>
|
|
#include <plat/mcbsp.h>
|
|
|
|
#include "omap-mcbsp.h"
|
|
#include "omap-pcm.h"
|
|
|
|
static int overo_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;
|
|
int ret;
|
|
|
|
/* Set codec DAI configuration */
|
|
ret = snd_soc_dai_set_fmt(codec_dai,
|
|
SND_SOC_DAIFMT_I2S |
|
|
SND_SOC_DAIFMT_NB_NF |
|
|
SND_SOC_DAIFMT_CBM_CFM);
|
|
if (ret < 0) {
|
|
printk(KERN_ERR "can't set codec DAI configuration\n");
|
|
return ret;
|
|
}
|
|
|
|
/* Set cpu DAI configuration */
|
|
ret = snd_soc_dai_set_fmt(cpu_dai,
|
|
SND_SOC_DAIFMT_I2S |
|
|
SND_SOC_DAIFMT_NB_NF |
|
|
SND_SOC_DAIFMT_CBM_CFM);
|
|
if (ret < 0) {
|
|
printk(KERN_ERR "can't set cpu DAI configuration\n");
|
|
return ret;
|
|
}
|
|
|
|
/* Set the codec system clock for DAC and ADC */
|
|
ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000,
|
|
SND_SOC_CLOCK_IN);
|
|
if (ret < 0) {
|
|
printk(KERN_ERR "can't set codec system clock\n");
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct snd_soc_ops overo_ops = {
|
|
.hw_params = overo_hw_params,
|
|
};
|
|
|
|
/* Digital audio interface glue - connects codec <--> CPU */
|
|
static struct snd_soc_dai_link overo_dai = {
|
|
.name = "TWL4030",
|
|
.stream_name = "TWL4030",
|
|
.cpu_dai_name = "omap-mcbsp-dai.1",
|
|
.codec_dai_name = "twl4030-hifi",
|
|
.platform_name = "omap-pcm-audio",
|
|
.codec_name = "twl4030-codec",
|
|
.ops = &overo_ops,
|
|
};
|
|
|
|
/* Audio machine driver */
|
|
static struct snd_soc_card snd_soc_card_overo = {
|
|
.name = "overo",
|
|
.dai_link = &overo_dai,
|
|
.num_links = 1,
|
|
};
|
|
|
|
static struct platform_device *overo_snd_device;
|
|
|
|
static int __init overo_soc_init(void)
|
|
{
|
|
int ret;
|
|
|
|
if (!(machine_is_overo() || machine_is_cm_t35())) {
|
|
pr_debug("Incomatible machine!\n");
|
|
return -ENODEV;
|
|
}
|
|
printk(KERN_INFO "overo SoC init\n");
|
|
|
|
overo_snd_device = platform_device_alloc("soc-audio", -1);
|
|
if (!overo_snd_device) {
|
|
printk(KERN_ERR "Platform device allocation failed\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
platform_set_drvdata(overo_snd_device, &snd_soc_card_overo);
|
|
|
|
ret = platform_device_add(overo_snd_device);
|
|
if (ret)
|
|
goto err1;
|
|
|
|
return 0;
|
|
|
|
err1:
|
|
printk(KERN_ERR "Unable to add platform device\n");
|
|
platform_device_put(overo_snd_device);
|
|
|
|
return ret;
|
|
}
|
|
module_init(overo_soc_init);
|
|
|
|
static void __exit overo_soc_exit(void)
|
|
{
|
|
platform_device_unregister(overo_snd_device);
|
|
}
|
|
module_exit(overo_soc_exit);
|
|
|
|
MODULE_AUTHOR("Steve Sakoman <steve@sakoman.com>");
|
|
MODULE_DESCRIPTION("ALSA SoC overo");
|
|
MODULE_LICENSE("GPL");
|