Contributors: 6
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Jonathan Cameron |
242 |
64.02% |
1 |
9.09% |
| Axel Lin |
81 |
21.43% |
4 |
36.36% |
| Kuninori Morimoto |
49 |
12.96% |
3 |
27.27% |
| Dmitry Eremin-Solenikov |
4 |
1.06% |
1 |
9.09% |
| Thomas Gleixner |
1 |
0.26% |
1 |
9.09% |
| Bhumika Goyal |
1 |
0.26% |
1 |
9.09% |
| Total |
378 |
|
11 |
|
// SPDX-License-Identifier: GPL-2.0-only
#include <linux/module.h>
#include <sound/soc.h>
#include <asm/mach-types.h>
#include "../codecs/wm8940.h"
#include "pxa2xx-i2s.h"
static int imote2_asoc_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
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;
}
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 const struct snd_soc_ops imote2_asoc_ops = {
.hw_params = imote2_asoc_hw_params,
};
SND_SOC_DAILINK_DEFS(wm8940,
DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-i2s")),
DAILINK_COMP_ARRAY(COMP_CODEC("wm8940-codec.0-0034",
"wm8940-hifi")),
DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
static struct snd_soc_dai_link imote2_dai = {
.name = "WM8940",
.stream_name = "WM8940",
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBS_CFS,
.ops = &imote2_asoc_ops,
SND_SOC_DAILINK_REG(wm8940),
};
static struct snd_soc_card imote2 = {
.name = "Imote2",
.owner = THIS_MODULE,
.dai_link = &imote2_dai,
.num_links = 1,
};
static int imote2_probe(struct platform_device *pdev)
{
struct snd_soc_card *card = &imote2;
int ret;
card->dev = &pdev->dev;
ret = devm_snd_soc_register_card(&pdev->dev, card);
if (ret)
dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
ret);
return ret;
}
static struct platform_driver imote2_driver = {
.driver = {
.name = "imote2-audio",
.pm = &snd_soc_pm_ops,
},
.probe = imote2_probe,
};
module_platform_driver(imote2_driver);
MODULE_AUTHOR("Jonathan Cameron");
MODULE_DESCRIPTION("ALSA SoC Imote 2");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:imote2-audio");