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yaml
---
r: 148247
b: refs/heads/master
c: a195b51
h: refs/heads/master
i:
  148245: 40d1fe7
  148243: 75e793e
  148239: 1e55560
v: v3
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Jonathan Cameron authored and Mark Brown committed May 5, 2009
1 parent 2f781e6 commit 4fb00fc
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Showing 4 changed files with 126 additions and 1 deletion.
2 changes: 1 addition & 1 deletion [refs]
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@@ -1,2 +1,2 @@
---
refs/heads/master: ee8f6894f358b6a04d8190fd78990749de98a498
refs/heads/master: a195b51bc5abc745f12b7b2fe0e3422f55c1953f
9 changes: 9 additions & 0 deletions trunk/sound/soc/pxa/Kconfig
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Expand Up @@ -134,3 +134,12 @@ config SND_PXA2XX_SOC_MIOA701
help
Say Y if you want to add support for SoC audio on the
MIO A701.

config SND_PXA2XX_SOC_IMOTE2
tristate "SoC Audio support for IMote 2"
depends on SND_PXA2XX_SOC && MACH_INTELMOTE2
select SND_PXA2XX_SOC_I2S
select SND_SOC_WM8940
help
Say Y if you want to add support for SoC audio on the
IMote 2.
2 changes: 2 additions & 0 deletions trunk/sound/soc/pxa/Makefile
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Expand Up @@ -22,6 +22,7 @@ snd-soc-palm27x-objs := palm27x.o
snd-soc-zylonite-objs := zylonite.o
snd-soc-magician-objs := magician.o
snd-soc-mioa701-objs := mioa701_wm9713.o
snd-soc-imote2-objs := imote2.o

obj-$(CONFIG_SND_PXA2XX_SOC_CORGI) += snd-soc-corgi.o
obj-$(CONFIG_SND_PXA2XX_SOC_POODLE) += snd-soc-poodle.o
Expand All @@ -35,3 +36,4 @@ obj-$(CONFIG_SND_PXA2XX_SOC_PALM27X) += snd-soc-palm27x.o
obj-$(CONFIG_SND_PXA2XX_SOC_MAGICIAN) += snd-soc-magician.o
obj-$(CONFIG_SND_PXA2XX_SOC_MIOA701) += snd-soc-mioa701.o
obj-$(CONFIG_SND_SOC_ZYLONITE) += snd-soc-zylonite.o
obj-$(CONFIG_SND_PXA2XX_SOC_IMOTE2) += snd-soc-imote2.o
114 changes: 114 additions & 0 deletions trunk/sound/soc/pxa/imote2.c
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@@ -0,0 +1,114 @@

#include <linux/module.h>
#include <sound/soc.h>

#include <asm/mach-types.h>

#include "../codecs/wm8940.h"
#include "pxa2xx-i2s.h"
#include "pxa2xx-pcm.h"

static int imote2_asoc_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;
unsigned int clk = 0;
int ret;

switch (params_rate(params)) {
case 8000:
case 16000:
case 48000:
case 96000:
clk = 12288000;
break;
case 11025:
case 22050:
case 44100:
clk = 11289600;
break;
}

/* set codec DAI configuration */
ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S
| SND_SOC_DAIFMT_NB_NF
| SND_SOC_DAIFMT_CBS_CFS);
if (ret < 0)
return ret;

/* CPU should be clock master */
ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S
| SND_SOC_DAIFMT_NB_NF
| SND_SOC_DAIFMT_CBS_CFS);
if (ret < 0)
return ret;

ret = snd_soc_dai_set_sysclk(codec_dai, 0, clk,
SND_SOC_CLOCK_IN);
if (ret < 0)
return ret;

/* set the I2S system clock as input (unused) */
ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, clk,
SND_SOC_CLOCK_OUT);

return ret;
}

static struct snd_soc_ops imote2_asoc_ops = {
.hw_params = imote2_asoc_hw_params,
};

static struct snd_soc_dai_link imote2_dai = {
.name = "WM8940",
.stream_name = "WM8940",
.cpu_dai = &pxa_i2s_dai,
.codec_dai = &wm8940_dai,
.ops = &imote2_asoc_ops,
};

static struct snd_soc_card snd_soc_imote2 = {
.name = "Imote2",
.platform = &pxa2xx_soc_platform,
.dai_link = &imote2_dai,
.num_links = 1,
};

static struct snd_soc_device imote2_snd_devdata = {
.card = &snd_soc_imote2,
.codec_dev = &soc_codec_dev_wm8940,
};

static struct platform_device *imote2_snd_device;

static int __init imote2_asoc_init(void)
{
int ret;

if (!machine_is_intelmote2())
return -ENODEV;
imote2_snd_device = platform_device_alloc("soc-audio", -1);
if (!imote2_snd_device)
return -ENOMEM;

platform_set_drvdata(imote2_snd_device, &imote2_snd_devdata);
imote2_snd_devdata.dev = &imote2_snd_device->dev;
ret = platform_device_add(imote2_snd_device);
if (ret)
platform_device_put(imote2_snd_device);

return ret;
}
module_init(imote2_asoc_init);

static void __exit imote2_asoc_exit(void)
{
platform_device_unregister(imote2_snd_device);
}
module_exit(imote2_asoc_exit);

MODULE_AUTHOR("Jonathan Cameron");
MODULE_DESCRIPTION("ALSA SoC Imote 2");
MODULE_LICENSE("GPL");

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