forked from Sricharanti/sricharan
-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Adds Alsa audio platform driver for mmp brownstone machine Signed-off-by: Zhangfei Gao <[email protected]> Signed-off-by: Leo Yan <[email protected]> Signed-off-by: Mark Brown <[email protected]>
- Loading branch information
Showing
3 changed files
with
186 additions
and
0 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,174 @@ | ||
/* | ||
* linux/sound/soc/pxa/brownstone.c | ||
* | ||
* Copyright (C) 2011 Marvell International Ltd. | ||
* | ||
* 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. | ||
* | ||
*/ | ||
|
||
#include <linux/module.h> | ||
#include <sound/core.h> | ||
#include <sound/pcm.h> | ||
#include <sound/soc.h> | ||
#include <sound/jack.h> | ||
|
||
#include "../codecs/wm8994.h" | ||
#include "mmp-sspa.h" | ||
|
||
static const struct snd_kcontrol_new brownstone_dapm_control[] = { | ||
SOC_DAPM_PIN_SWITCH("Ext Spk"), | ||
}; | ||
|
||
static const struct snd_soc_dapm_widget brownstone_dapm_widgets[] = { | ||
SND_SOC_DAPM_SPK("Ext Spk", NULL), | ||
SND_SOC_DAPM_HP("Headset Stereophone", NULL), | ||
SND_SOC_DAPM_MIC("Headset Mic", NULL), | ||
SND_SOC_DAPM_MIC("Main Mic", NULL), | ||
}; | ||
|
||
static const struct snd_soc_dapm_route brownstone_audio_map[] = { | ||
{"Ext Spk", NULL, "SPKOUTLP"}, | ||
{"Ext Spk", NULL, "SPKOUTLN"}, | ||
{"Ext Spk", NULL, "SPKOUTRP"}, | ||
{"Ext Spk", NULL, "SPKOUTRN"}, | ||
|
||
{"Headset Stereophone", NULL, "HPOUT1L"}, | ||
{"Headset Stereophone", NULL, "HPOUT1R"}, | ||
|
||
{"IN1RN", NULL, "Headset Mic"}, | ||
|
||
{"DMIC1DAT", NULL, "MICBIAS1"}, | ||
{"MICBIAS1", NULL, "Main Mic"}, | ||
}; | ||
|
||
static int brownstone_wm8994_init(struct snd_soc_pcm_runtime *rtd) | ||
{ | ||
struct snd_soc_codec *codec = rtd->codec; | ||
struct snd_soc_dapm_context *dapm = &codec->dapm; | ||
|
||
snd_soc_dapm_enable_pin(dapm, "Ext Spk"); | ||
snd_soc_dapm_enable_pin(dapm, "Headset Stereophone"); | ||
snd_soc_dapm_enable_pin(dapm, "Headset Mic"); | ||
snd_soc_dapm_enable_pin(dapm, "Main Mic"); | ||
|
||
/* set endpoints to not connected */ | ||
snd_soc_dapm_nc_pin(dapm, "HPOUT2P"); | ||
snd_soc_dapm_nc_pin(dapm, "HPOUT2N"); | ||
snd_soc_dapm_nc_pin(dapm, "LINEOUT1N"); | ||
snd_soc_dapm_nc_pin(dapm, "LINEOUT1P"); | ||
snd_soc_dapm_nc_pin(dapm, "LINEOUT2N"); | ||
snd_soc_dapm_nc_pin(dapm, "LINEOUT2P"); | ||
snd_soc_dapm_nc_pin(dapm, "IN1LN"); | ||
snd_soc_dapm_nc_pin(dapm, "IN1LP"); | ||
snd_soc_dapm_nc_pin(dapm, "IN1RP"); | ||
snd_soc_dapm_nc_pin(dapm, "IN2LP:VXRN"); | ||
snd_soc_dapm_nc_pin(dapm, "IN2RN"); | ||
snd_soc_dapm_nc_pin(dapm, "IN2RP:VXRP"); | ||
snd_soc_dapm_nc_pin(dapm, "IN2LN"); | ||
|
||
snd_soc_dapm_sync(dapm); | ||
|
||
return 0; | ||
} | ||
|
||
static int brownstone_wm8994_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; | ||
struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | ||
int freq_out, sspa_mclk, sysclk; | ||
int sspa_div; | ||
|
||
if (params_rate(params) > 11025) { | ||
freq_out = params_rate(params) * 512; | ||
sysclk = params_rate(params) * 256; | ||
sspa_mclk = params_rate(params) * 64; | ||
} else { | ||
freq_out = params_rate(params) * 1024; | ||
sysclk = params_rate(params) * 512; | ||
sspa_mclk = params_rate(params) * 64; | ||
} | ||
sspa_div = freq_out; | ||
do_div(sspa_div, sspa_mclk); | ||
|
||
snd_soc_dai_set_sysclk(cpu_dai, MMP_SSPA_CLK_AUDIO, freq_out, 0); | ||
snd_soc_dai_set_pll(cpu_dai, MMP_SYSCLK, 0, freq_out, sysclk); | ||
snd_soc_dai_set_pll(cpu_dai, MMP_SSPA_CLK, 0, freq_out, sspa_mclk); | ||
|
||
/* set wm8994 sysclk */ | ||
snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_MCLK1, sysclk, 0); | ||
|
||
return 0; | ||
} | ||
|
||
/* machine stream operations */ | ||
static struct snd_soc_ops brownstone_ops = { | ||
.hw_params = brownstone_wm8994_hw_params, | ||
}; | ||
|
||
static struct snd_soc_dai_link brownstone_wm8994_dai[] = { | ||
{ | ||
.name = "WM8994", | ||
.stream_name = "WM8994 HiFi", | ||
.cpu_dai_name = "mmp-sspa-dai.0", | ||
.codec_dai_name = "wm8994-aif1", | ||
.platform_name = "mmp-pcm-audio", | ||
.codec_name = "wm8994-codec", | ||
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | | ||
SND_SOC_DAIFMT_CBS_CFS, | ||
.ops = &brownstone_ops, | ||
.init = brownstone_wm8994_init, | ||
}, | ||
}; | ||
|
||
/* audio machine driver */ | ||
static struct snd_soc_card brownstone = { | ||
.name = "brownstone", | ||
.dai_link = brownstone_wm8994_dai, | ||
.num_links = ARRAY_SIZE(brownstone_wm8994_dai), | ||
|
||
.controls = brownstone_dapm_control, | ||
.num_controls = ARRAY_SIZE(brownstone_dapm_control), | ||
.dapm_widgets = brownstone_dapm_widgets, | ||
.num_dapm_widgets = ARRAY_SIZE(brownstone_dapm_widgets), | ||
.dapm_routes = brownstone_audio_map, | ||
.num_dapm_routes = ARRAY_SIZE(brownstone_audio_map), | ||
}; | ||
|
||
static int __devinit brownstone_probe(struct platform_device *pdev) | ||
{ | ||
int ret; | ||
|
||
brownstone.dev = &pdev->dev; | ||
ret = snd_soc_register_card(&brownstone); | ||
if (ret) | ||
dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", | ||
ret); | ||
return ret; | ||
} | ||
|
||
static int __devexit brownstone_remove(struct platform_device *pdev) | ||
{ | ||
snd_soc_unregister_card(&brownstone); | ||
return 0; | ||
} | ||
|
||
static struct platform_driver mmp_driver = { | ||
.driver = { | ||
.name = "brownstone-audio", | ||
.owner = THIS_MODULE, | ||
}, | ||
.probe = brownstone_probe, | ||
.remove = __devexit_p(brownstone_remove), | ||
}; | ||
|
||
module_platform_driver(mmp_driver); | ||
|
||
MODULE_AUTHOR("Leo Yan <[email protected]>"); | ||
MODULE_DESCRIPTION("ALSA SoC Brownstone"); | ||
MODULE_LICENSE("GPL"); |