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ASoC: Add support for TI SDP3430

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This patch add ASoC support for TI SDP3430. It's based on Gumstix
Overo SoC code by Steve Sakoman.

Signed-off-by: Misael Lopez Cruz <mesak82@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Misael Lopez Cruz 2008-11-24 22:21:23 -06:00 committed by Mark Brown
parent 9c8f1a0e6e
commit 4451582f7e
3 changed files with 161 additions and 1 deletions
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7
sound/soc/omap/Kconfig
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@ -38,5 +38,12 @@ config SND_OMAP_SOC_OMAP2EVM
help
Say Y if you want to add support for SoC audio on the omap2evm board.
config SND_OMAP_SOC_SDP3430
tristate "SoC Audio support for Texas Instruments SDP3430"
depends on TWL4030_CORE && SND_OMAP_SOC && MACH_OMAP_3430SDP
select SND_OMAP_SOC_MCBSP
select SND_SOC_TWL4030
help
Say Y if you want to add support for SoC audio on Texas Instruments SDP3430.

3
sound/soc/omap/Makefile
View File

@ -10,9 +10,10 @@ snd-soc-n810-objs := n810.o
snd-soc-osk5912-objs := osk5912.o
snd-soc-overo-objs := overo.o
snd-soc-omap2evm-objs := omap2evm.o
snd-soc-sdp3430-objs := sdp3430.o
obj-$(CONFIG_SND_OMAP_SOC_N810) += snd-soc-n810.o
obj-$(CONFIG_SND_OMAP_SOC_OSK5912) += snd-soc-osk5912.o
obj-$(CONFIG_SND_OMAP_SOC_OVERO) += snd-soc-overo.o
obj-$(CONFIG_MACH_OMAP2EVM) += snd-soc-omap2evm.o
obj-$(CONFIG_SND_OMAP_SOC_SDP3430) += snd-soc-sdp3430.o

152
sound/soc/omap/sdp3430.c Normal file
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@ -0,0 +1,152 @@
/*
* sdp3430.c -- SoC audio for TI OMAP3430 SDP
*
* Author: Misael Lopez Cruz <x0052729@ti.com>
*
* Based on:
* 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 <sound/soc-dapm.h>
#include <asm/mach-types.h>
#include <mach/hardware.h>
#include <mach/gpio.h>
#include <mach/mcbsp.h>
#include "omap-mcbsp.h"
#include "omap-pcm.h"
#include "../codecs/twl4030.h"
static int sdp3430_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->dai->codec_dai;
struct snd_soc_dai *cpu_dai = rtd->dai->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 sdp3430_ops = {
.hw_params = sdp3430_hw_params,
};
/* Digital audio interface glue - connects codec <--> CPU */
static struct snd_soc_dai_link sdp3430_dai = {
.name = "TWL4030",
.stream_name = "TWL4030",
.cpu_dai = &omap_mcbsp_dai[0],
.codec_dai = &twl4030_dai,
.ops = &sdp3430_ops,
};
/* Audio machine driver */
static struct snd_soc_machine snd_soc_machine_sdp3430 = {
.name = "SDP3430",
.dai_link = &sdp3430_dai,
.num_links = 1,
};
/* Audio subsystem */
static struct snd_soc_device sdp3430_snd_devdata = {
.machine = &snd_soc_machine_sdp3430,
.platform = &omap_soc_platform,
.codec_dev = &soc_codec_dev_twl4030,
};
static struct platform_device *sdp3430_snd_device;
static int __init sdp3430_soc_init(void)
{
int ret;
if (!machine_is_omap_3430sdp()) {
pr_debug("Not SDP3430!\n");
return -ENODEV;
}
printk(KERN_INFO "SDP3430 SoC init\n");
sdp3430_snd_device = platform_device_alloc("soc-audio", -1);
if (!sdp3430_snd_device) {
printk(KERN_ERR "Platform device allocation failed\n");
return -ENOMEM;
}
platform_set_drvdata(sdp3430_snd_device, &sdp3430_snd_devdata);
sdp3430_snd_devdata.dev = &sdp3430_snd_device->dev;
*(unsigned int *)sdp3430_dai.cpu_dai->private_data = 1; /* McBSP2 */
ret = platform_device_add(sdp3430_snd_device);
if (ret)
goto err1;
return 0;
err1:
printk(KERN_ERR "Unable to add platform device\n");
platform_device_put(sdp3430_snd_device);
return ret;
}
module_init(sdp3430_soc_init);
static void __exit sdp3430_soc_exit(void)
{
platform_device_unregister(sdp3430_snd_device);
}
module_exit(sdp3430_soc_exit);
MODULE_AUTHOR("Misael Lopez Cruz <x0052729@ti.com>");
MODULE_DESCRIPTION("ALSA SoC SDP3430");
MODULE_LICENSE("GPL");