mirror of
https://github.com/adulau/aha.git
synced 2024-12-29 04:06:22 +00:00
ALSA: ASoC: Add support for osk5912
Adding ASoC machine driver for osk5912 Signed-off-by: Arun KS <arunks@mistralsolutions.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Arun KS
Takashi Iwai
parent
c1f27190a7
commit
17f9ecf34a
3 changed files with 242 additions and 0 deletions
|
|
@ -13,3 +13,11 @@ config SND_OMAP_SOC_N810
|
|||
select SND_SOC_TLV320AIC3X
|
||||
help
|
||||
Say Y if you want to add support for SoC audio on Nokia N810.
|
||||
|
||||
config SND_OMAP_SOC_OSK5912
|
||||
tristate "SoC Audio support for omap osk5912"
|
||||
depends on SND_OMAP_SOC && MACH_OMAP_OSK
|
||||
select SND_OMAP_SOC_MCBSP
|
||||
select SND_SOC_TLV320AIC23
|
||||
help
|
||||
Say Y if you want to add support for SoC audio on osk5912.
|
||||
|
|
|
|||
|
|
@ -7,5 +7,7 @@ obj-$(CONFIG_SND_OMAP_SOC_MCBSP) += snd-soc-omap-mcbsp.o
|
|||
|
||||
# OMAP Machine Support
|
||||
snd-soc-n810-objs := n810.o
|
||||
snd-soc-osk5912-objs := osk5912.o
|
||||
|
||||
obj-$(CONFIG_SND_OMAP_SOC_N810) += snd-soc-n810.o
|
||||
obj-$(CONFIG_SND_OMAP_SOC_OSK5912) += snd-soc-osk5912.o
|
||||
|
|
|
|||
232
sound/soc/omap/osk5912.c
Normal file
232
sound/soc/omap/osk5912.c
Normal file
|
|
@ -0,0 +1,232 @@
|
|||
/*
|
||||
* osk5912.c -- SoC audio for OSK 5912
|
||||
*
|
||||
* Copyright (C) 2008 Mistral Solutions
|
||||
*
|
||||
* Contact: Arun KS <arunks@mistralsolutions.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 <linux/gpio.h>
|
||||
#include <mach/mcbsp.h>
|
||||
|
||||
#include "omap-mcbsp.h"
|
||||
#include "omap-pcm.h"
|
||||
#include "../codecs/tlv320aic23.h"
|
||||
|
||||
#define CODEC_CLOCK 12000000
|
||||
|
||||
static struct clk *tlv320aic23_mclk;
|
||||
|
||||
static int osk_startup(struct snd_pcm_substream *substream)
|
||||
{
|
||||
return clk_enable(tlv320aic23_mclk);
|
||||
}
|
||||
|
||||
static void osk_shutdown(struct snd_pcm_substream *substream)
|
||||
{
|
||||
clk_disable(tlv320aic23_mclk);
|
||||
}
|
||||
|
||||
static int osk_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 err;
|
||||
|
||||
/* Set codec DAI configuration */
|
||||
err = snd_soc_dai_set_fmt(codec_dai,
|
||||
SND_SOC_DAIFMT_DSP_A |
|
||||
SND_SOC_DAIFMT_NB_IF |
|
||||
SND_SOC_DAIFMT_CBM_CFM);
|
||||
if (err < 0) {
|
||||
printk(KERN_ERR "can't set codec DAI configuration\n");
|
||||
return err;
|
||||
}
|
||||
|
||||
/* Set cpu DAI configuration */
|
||||
err = snd_soc_dai_set_fmt(cpu_dai,
|
||||
SND_SOC_DAIFMT_DSP_A |
|
||||
SND_SOC_DAIFMT_NB_IF |
|
||||
SND_SOC_DAIFMT_CBM_CFM);
|
||||
if (err < 0) {
|
||||
printk(KERN_ERR "can't set cpu DAI configuration\n");
|
||||
return err;
|
||||
}
|
||||
|
||||
/* Set the codec system clock for DAC and ADC */
|
||||
err =
|
||||
snd_soc_dai_set_sysclk(codec_dai, 0, CODEC_CLOCK, SND_SOC_CLOCK_IN);
|
||||
|
||||
if (err < 0) {
|
||||
printk(KERN_ERR "can't set codec system clock\n");
|
||||
return err;
|
||||
}
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
static struct snd_soc_ops osk_ops = {
|
||||
.startup = osk_startup,
|
||||
.hw_params = osk_hw_params,
|
||||
.shutdown = osk_shutdown,
|
||||
};
|
||||
|
||||
static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = {
|
||||
SND_SOC_DAPM_HP("Headphone Jack", NULL),
|
||||
SND_SOC_DAPM_LINE("Line In", NULL),
|
||||
SND_SOC_DAPM_MIC("Mic Jack", NULL),
|
||||
};
|
||||
|
||||
static const struct snd_soc_dapm_route audio_map[] = {
|
||||
{"Headphone Jack", NULL, "LHPOUT"},
|
||||
{"Headphone Jack", NULL, "RHPOUT"},
|
||||
|
||||
{"LLINEIN", NULL, "Line In"},
|
||||
{"RLINEIN", NULL, "Line In"},
|
||||
|
||||
{"MICIN", NULL, "Mic Jack"},
|
||||
};
|
||||
|
||||
static int osk_tlv320aic23_init(struct snd_soc_codec *codec)
|
||||
{
|
||||
|
||||
/* Add osk5912 specific widgets */
|
||||
snd_soc_dapm_new_controls(codec, tlv320aic23_dapm_widgets,
|
||||
ARRAY_SIZE(tlv320aic23_dapm_widgets));
|
||||
|
||||
/* Set up osk5912 specific audio path audio_map */
|
||||
snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
|
||||
|
||||
snd_soc_dapm_enable_pin(codec, "Headphone Jack");
|
||||
snd_soc_dapm_enable_pin(codec, "Line In");
|
||||
snd_soc_dapm_enable_pin(codec, "Mic Jack");
|
||||
|
||||
snd_soc_dapm_sync(codec);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Digital audio interface glue - connects codec <--> CPU */
|
||||
static struct snd_soc_dai_link osk_dai = {
|
||||
.name = "TLV320AIC23",
|
||||
.stream_name = "AIC23",
|
||||
.cpu_dai = &omap_mcbsp_dai[0],
|
||||
.codec_dai = &tlv320aic23_dai,
|
||||
.init = osk_tlv320aic23_init,
|
||||
.ops = &osk_ops,
|
||||
};
|
||||
|
||||
/* Audio machine driver */
|
||||
static struct snd_soc_machine snd_soc_machine_osk = {
|
||||
.name = "OSK5912",
|
||||
.dai_link = &osk_dai,
|
||||
.num_links = 1,
|
||||
};
|
||||
|
||||
/* Audio subsystem */
|
||||
static struct snd_soc_device osk_snd_devdata = {
|
||||
.machine = &snd_soc_machine_osk,
|
||||
.platform = &omap_soc_platform,
|
||||
.codec_dev = &soc_codec_dev_tlv320aic23,
|
||||
};
|
||||
|
||||
static struct platform_device *osk_snd_device;
|
||||
|
||||
static int __init osk_soc_init(void)
|
||||
{
|
||||
int err;
|
||||
u32 curRate;
|
||||
struct device *dev;
|
||||
|
||||
if (!(machine_is_omap_osk()))
|
||||
return -ENODEV;
|
||||
|
||||
osk_snd_device = platform_device_alloc("soc-audio", -1);
|
||||
if (!osk_snd_device)
|
||||
return -ENOMEM;
|
||||
|
||||
platform_set_drvdata(osk_snd_device, &osk_snd_devdata);
|
||||
osk_snd_devdata.dev = &osk_snd_device->dev;
|
||||
*(unsigned int *)osk_dai.cpu_dai->private_data = 0; /* McBSP1 */
|
||||
err = platform_device_add(osk_snd_device);
|
||||
if (err)
|
||||
goto err1;
|
||||
|
||||
dev = &osk_snd_device->dev;
|
||||
|
||||
tlv320aic23_mclk = clk_get(dev, "mclk");
|
||||
if (IS_ERR(tlv320aic23_mclk)) {
|
||||
printk(KERN_ERR "Could not get mclk clock\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
if (clk_get_usecount(tlv320aic23_mclk) > 0) {
|
||||
/* MCLK is already in use */
|
||||
printk(KERN_WARNING
|
||||
"MCLK in use at %d Hz. We change it to %d Hz\n",
|
||||
(uint) clk_get_rate(tlv320aic23_mclk), CODEC_CLOCK);
|
||||
}
|
||||
|
||||
/*
|
||||
* Configure 12 MHz output on MCLK.
|
||||
*/
|
||||
curRate = (uint) clk_get_rate(tlv320aic23_mclk);
|
||||
if (curRate != CODEC_CLOCK) {
|
||||
if (clk_set_rate(tlv320aic23_mclk, CODEC_CLOCK)) {
|
||||
printk(KERN_ERR "Cannot set MCLK for AIC23 CODEC\n");
|
||||
err = -ECANCELED;
|
||||
goto err1;
|
||||
}
|
||||
}
|
||||
|
||||
printk(KERN_INFO "MCLK = %d [%d], usecount = %d\n",
|
||||
(uint) clk_get_rate(tlv320aic23_mclk), CODEC_CLOCK,
|
||||
clk_get_usecount(tlv320aic23_mclk));
|
||||
|
||||
return 0;
|
||||
err1:
|
||||
clk_put(tlv320aic23_mclk);
|
||||
platform_device_del(osk_snd_device);
|
||||
platform_device_put(osk_snd_device);
|
||||
|
||||
return err;
|
||||
|
||||
}
|
||||
|
||||
static void __exit osk_soc_exit(void)
|
||||
{
|
||||
platform_device_unregister(osk_snd_device);
|
||||
}
|
||||
|
||||
module_init(osk_soc_init);
|
||||
module_exit(osk_soc_exit);
|
||||
|
||||
MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>");
|
||||
MODULE_DESCRIPTION("ALSA SoC OSK 5912");
|
||||
MODULE_LICENSE("GPL");
|
||||
Loading…
Reference in a new issue