Contributors: 13
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Richard Purdie |
229 |
40.18% |
1 |
4.55% |
| Liam Girdwood |
96 |
16.84% |
3 |
13.64% |
| Mark Brown |
80 |
14.04% |
6 |
27.27% |
| Manuel Lauss |
55 |
9.65% |
1 |
4.55% |
| Kuninori Morimoto |
42 |
7.37% |
1 |
4.55% |
| Lars-Peter Clausen |
38 |
6.67% |
3 |
13.64% |
| Eric Miao |
14 |
2.46% |
1 |
4.55% |
| Mika Westerberg |
5 |
0.88% |
1 |
4.55% |
| Tejun Heo |
3 |
0.53% |
1 |
4.55% |
| Paul Gortmaker |
3 |
0.53% |
1 |
4.55% |
| Maciej S. Szmigiero |
2 |
0.35% |
1 |
4.55% |
| Fabio Estevam |
2 |
0.35% |
1 |
4.55% |
| Bhumika Goyal |
1 |
0.18% |
1 |
4.55% |
| Total |
570 |
|
22 |
|
/*
* ac97.c -- ALSA Soc AC97 codec support
*
* Copyright 2005 Wolfson Microelectronics PLC.
* Author: Liam Girdwood <lrg@slimlogic.co.uk>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* Generic AC97 support.
*/
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/module.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/ac97_codec.h>
#include <sound/initval.h>
#include <sound/soc.h>
static const struct snd_soc_dapm_widget ac97_widgets[] = {
SND_SOC_DAPM_INPUT("RX"),
SND_SOC_DAPM_OUTPUT("TX"),
};
static const struct snd_soc_dapm_route ac97_routes[] = {
{ "AC97 Capture", NULL, "RX" },
{ "TX", NULL, "AC97 Playback" },
};
static int ac97_prepare(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_component *component = dai->component;
struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component);
int reg = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ?
AC97_PCM_FRONT_DAC_RATE : AC97_PCM_LR_ADC_RATE;
return snd_ac97_set_rate(ac97, reg, substream->runtime->rate);
}
static const struct snd_soc_dai_ops ac97_dai_ops = {
.prepare = ac97_prepare,
};
static struct snd_soc_dai_driver ac97_dai = {
.name = "ac97-hifi",
.playback = {
.stream_name = "AC97 Playback",
.channels_min = 1,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_KNOT,
.formats = SND_SOC_STD_AC97_FMTS,},
.capture = {
.stream_name = "AC97 Capture",
.channels_min = 1,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_KNOT,
.formats = SND_SOC_STD_AC97_FMTS,},
.ops = &ac97_dai_ops,
};
static int ac97_soc_probe(struct snd_soc_component *component)
{
struct snd_ac97 *ac97;
struct snd_ac97_bus *ac97_bus;
struct snd_ac97_template ac97_template;
int ret;
/* add codec as bus device for standard ac97 */
ret = snd_ac97_bus(component->card->snd_card, 0, soc_ac97_ops,
NULL, &ac97_bus);
if (ret < 0)
return ret;
memset(&ac97_template, 0, sizeof(struct snd_ac97_template));
ret = snd_ac97_mixer(ac97_bus, &ac97_template, &ac97);
if (ret < 0)
return ret;
snd_soc_component_set_drvdata(component, ac97);
return 0;
}
#ifdef CONFIG_PM
static int ac97_soc_suspend(struct snd_soc_component *component)
{
struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component);
snd_ac97_suspend(ac97);
return 0;
}
static int ac97_soc_resume(struct snd_soc_component *component)
{
struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component);
snd_ac97_resume(ac97);
return 0;
}
#else
#define ac97_soc_suspend NULL
#define ac97_soc_resume NULL
#endif
static const struct snd_soc_component_driver soc_component_dev_ac97 = {
.probe = ac97_soc_probe,
.suspend = ac97_soc_suspend,
.resume = ac97_soc_resume,
.dapm_widgets = ac97_widgets,
.num_dapm_widgets = ARRAY_SIZE(ac97_widgets),
.dapm_routes = ac97_routes,
.num_dapm_routes = ARRAY_SIZE(ac97_routes),
.idle_bias_on = 1,
.use_pmdown_time = 1,
.endianness = 1,
.non_legacy_dai_naming = 1,
};
static int ac97_probe(struct platform_device *pdev)
{
return devm_snd_soc_register_component(&pdev->dev,
&soc_component_dev_ac97, &ac97_dai, 1);
}
static int ac97_remove(struct platform_device *pdev)
{
return 0;
}
static struct platform_driver ac97_codec_driver = {
.driver = {
.name = "ac97-codec",
},
.probe = ac97_probe,
.remove = ac97_remove,
};
module_platform_driver(ac97_codec_driver);
MODULE_DESCRIPTION("Soc Generic AC97 driver");
MODULE_AUTHOR("Liam Girdwood");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:ac97-codec");