On 16/06/11 07:42, Sangbeom Kim wrote:
This patch add WM8994 PCM machine driver to support PCM audio on SMDKV310, SMDKC210 boards. Playback and Capture supports 8kHz sampling rates. and It is tested on SMDKV310, SMDKC210.
Signed-off-by: Sangbeom Kim sbkim73@samsung.com
sound/soc/samsung/Kconfig | 8 ++ sound/soc/samsung/Makefile | 2 + sound/soc/samsung/smdk_wm8994pcm.c | 176 ++++++++++++++++++++++++++++++++++++ 3 files changed, 185 insertions(+), 0 deletions(-) create mode 100644 sound/soc/samsung/smdk_wm8994pcm.c
diff --git a/sound/soc/samsung/Kconfig b/sound/soc/samsung/Kconfig index b8c7a2e..db2bc49 100644 --- a/sound/soc/samsung/Kconfig +++ b/sound/soc/samsung/Kconfig @@ -170,3 +170,11 @@ config SND_SOC_SMDK_WM8580_PCM select SND_SAMSUNG_PCM help Say Y if you want to add support for SoC audio on the SMDK.
+config SND_SOC_SMDK_WM8994_PCM
- tristate "SoC PCM Audio support for WM8994 on SMDK"
- depends on SND_SOC_SAMSUNG && (MACH_SMDKC210 || MACH_SMDKV310)
- select SND_SOC_WM8994
- select SND_SAMSUNG_PCM
- help
Say Y if you want to add support for SoC audio on the SMDK.diff --git a/sound/soc/samsung/Makefile b/sound/soc/samsung/Makefile index 6c598fc..4a3a428 100644 --- a/sound/soc/samsung/Makefile +++ b/sound/soc/samsung/Makefile @@ -35,6 +35,7 @@ snd-soc-s3c64xx-smartq-wm8987-objs := smartq_wm8987.o snd-soc-goni-wm8994-objs := goni_wm8994.o snd-soc-smdk-spdif-objs := smdk_spdif.o snd-soc-smdk-wm8580pcm-objs := smdk_wm8580pcm.o +snd-soc-smdk-wm8994pcm-objs := smdk_wm8994pcm.o
obj-$(CONFIG_SND_SOC_SAMSUNG_JIVE_WM8750) += snd-soc-jive-wm8750.o obj-$(CONFIG_SND_SOC_SAMSUNG_NEO1973_WM8753) += snd-soc-neo1973-wm8753.o @@ -53,3 +54,4 @@ obj-$(CONFIG_SND_SOC_SMARTQ) += snd-soc-s3c64xx-smartq-wm8987.o obj-$(CONFIG_SND_SOC_SAMSUNG_SMDK_SPDIF) += snd-soc-smdk-spdif.o obj-$(CONFIG_SND_SOC_GONI_AQUILA_WM8994) += snd-soc-goni-wm8994.o obj-$(CONFIG_SND_SOC_SMDK_WM8580_PCM) += snd-soc-smdk-wm8580pcm.o +obj-$(CONFIG_SND_SOC_SMDK_WM8994_PCM) += snd-soc-smdk-wm8994pcm.o diff --git a/sound/soc/samsung/smdk_wm8994pcm.c b/sound/soc/samsung/smdk_wm8994pcm.c new file mode 100644 index 0000000..756c228 --- /dev/null +++ b/sound/soc/samsung/smdk_wm8994pcm.c @@ -0,0 +1,176 @@ +/*
- sound/soc/samsung/smdk_wm8994pcm.c
- Copyright (c) 2011 Samsung Electronics Co., Ltd
http://www.samsung.com
- 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 <sound/soc.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h>
+#include "../codecs/wm8994.h" +#include "dma.h" +#include "pcm.h"
+/*
- Board Settings:
- o '1' means 'ON'
- o '0' means 'OFF'
- o 'X' means 'Don't care'
- SMDKC210, SMDKV310: CFG3- 1001, CFG5-1000, CFG7-111111
- */
+/*
- Configure audio route as :-
- $ amixer sset 'DAC1' on,on
- $ amixer sset 'Right Headphone Mux' 'DAC'
- $ amixer sset 'Left Headphone Mux' 'DAC'
- $ amixer sset 'DAC1R Mixer AIF1.1' on
- $ amixer sset 'DAC1L Mixer AIF1.1' on
- $ amixer sset 'IN2L' on
- $ amixer sset 'IN2L PGA IN2LN' on
- $ amixer sset 'MIXINL IN2L' on
- $ amixer sset 'AIF1ADC1L Mixer ADC/DMIC' on
- $ amixer sset 'IN2R' on
- $ amixer sset 'IN2R PGA IN2RN' on
- $ amixer sset 'MIXINR IN2R' on
- $ amixer sset 'AIF1ADC1R Mixer ADC/DMIC' on
- */
+/* SMDK has a 16.9344MHZ crystal attached to WM8994 */ +#define SMDK_WM8994_FREQ 16934400
+static int smdk_wm8994_pcm_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;
- unsigned long mclk_freq;
- int rfs, ret;
- switch(params_rate(params)) {
- case 8000:
rfs = 512;break;- default:
printk(KERN_ERR "%s:%d Sampling Rate %u not supported!\n",__func__, __LINE__, params_rate(params));
Better to use dev_err here.
Thanks
Liam