mirror of
https://github.com/torvalds/linux.git
synced 2024-11-28 07:01:32 +00:00
3316fd2554
A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
130 lines
3.1 KiB
C
130 lines
3.1 KiB
C
/*
|
|
* Machine driver for EVAL-ADAU1x81 on Analog Devices bfin
|
|
* evaluation boards.
|
|
*
|
|
* Copyright 2011-2014 Analog Devices Inc.
|
|
* Author: Lars-Peter Clausen <lars@metafoo.de>
|
|
*
|
|
* Licensed under the GPL-2 or later.
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/device.h>
|
|
#include <linux/slab.h>
|
|
#include <sound/core.h>
|
|
#include <sound/pcm.h>
|
|
#include <sound/soc.h>
|
|
#include <sound/pcm_params.h>
|
|
|
|
#include "../codecs/adau17x1.h"
|
|
|
|
static const struct snd_soc_dapm_widget bfin_eval_adau1x81_dapm_widgets[] = {
|
|
SND_SOC_DAPM_LINE("Stereo In", NULL),
|
|
SND_SOC_DAPM_LINE("Beep", NULL),
|
|
|
|
SND_SOC_DAPM_SPK("Speaker", NULL),
|
|
SND_SOC_DAPM_HP("Headphone", NULL),
|
|
};
|
|
|
|
static const struct snd_soc_dapm_route bfin_eval_adau1x81_dapm_routes[] = {
|
|
{ "BEEP", NULL, "Beep" },
|
|
{ "LMIC", NULL, "Stereo In" },
|
|
{ "LMIC", NULL, "Stereo In" },
|
|
|
|
{ "Headphone", NULL, "AOUTL" },
|
|
{ "Headphone", NULL, "AOUTR" },
|
|
{ "Speaker", NULL, "SP" },
|
|
};
|
|
|
|
static int bfin_eval_adau1x81_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->codec_dai;
|
|
int pll_rate;
|
|
int ret;
|
|
|
|
switch (params_rate(params)) {
|
|
case 48000:
|
|
case 8000:
|
|
case 12000:
|
|
case 16000:
|
|
case 24000:
|
|
case 32000:
|
|
case 96000:
|
|
pll_rate = 48000 * 1024;
|
|
break;
|
|
case 44100:
|
|
case 7350:
|
|
case 11025:
|
|
case 14700:
|
|
case 22050:
|
|
case 29400:
|
|
case 88200:
|
|
pll_rate = 44100 * 1024;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = snd_soc_dai_set_pll(codec_dai, ADAU17X1_PLL,
|
|
ADAU17X1_PLL_SRC_MCLK, 12288000, pll_rate);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = snd_soc_dai_set_sysclk(codec_dai, ADAU17X1_CLK_SRC_PLL, pll_rate,
|
|
SND_SOC_CLOCK_IN);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static const struct snd_soc_ops bfin_eval_adau1x81_ops = {
|
|
.hw_params = bfin_eval_adau1x81_hw_params,
|
|
};
|
|
|
|
static struct snd_soc_dai_link bfin_eval_adau1x81_dai = {
|
|
.name = "adau1x81",
|
|
.stream_name = "adau1x81",
|
|
.cpu_dai_name = "bfin-i2s.0",
|
|
.codec_dai_name = "adau-hifi",
|
|
.platform_name = "bfin-i2s-pcm-audio",
|
|
.codec_name = "adau1781.0-0038",
|
|
.ops = &bfin_eval_adau1x81_ops,
|
|
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
|
|
SND_SOC_DAIFMT_CBM_CFM,
|
|
};
|
|
|
|
static struct snd_soc_card bfin_eval_adau1x81 = {
|
|
.name = "bfin-eval-adau1x81",
|
|
.driver_name = "eval-adau1x81",
|
|
.dai_link = &bfin_eval_adau1x81_dai,
|
|
.num_links = 1,
|
|
|
|
.dapm_widgets = bfin_eval_adau1x81_dapm_widgets,
|
|
.num_dapm_widgets = ARRAY_SIZE(bfin_eval_adau1x81_dapm_widgets),
|
|
.dapm_routes = bfin_eval_adau1x81_dapm_routes,
|
|
.num_dapm_routes = ARRAY_SIZE(bfin_eval_adau1x81_dapm_routes),
|
|
.fully_routed = true,
|
|
};
|
|
|
|
static int bfin_eval_adau1x81_probe(struct platform_device *pdev)
|
|
{
|
|
bfin_eval_adau1x81.dev = &pdev->dev;
|
|
|
|
return devm_snd_soc_register_card(&pdev->dev, &bfin_eval_adau1x81);
|
|
}
|
|
|
|
static struct platform_driver bfin_eval_adau1x81_driver = {
|
|
.driver = {
|
|
.name = "bfin-eval-adau1x81",
|
|
.pm = &snd_soc_pm_ops,
|
|
},
|
|
.probe = bfin_eval_adau1x81_probe,
|
|
};
|
|
module_platform_driver(bfin_eval_adau1x81_driver);
|
|
|
|
MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
|
|
MODULE_DESCRIPTION("ALSA SoC bfin adau1x81 driver");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_ALIAS("platform:bfin-eval-adau1x81");
|