[alsa-devel] [PATCH 10/10] ASoC: SMDKV310: Add I2S support
Jassi at alsa-project.org
Jassi at alsa-project.org
Mon Dec 20 03:05:57 CET 2010
From: Jassi Brar <jassi.brar at samsung.com>
Add ASoC machine driver for SMDKV310/C210 boards that have
a WM8994 attached to I2S-0.
Signed-off-by: Jassi Brar <jassi.brar at samsung.com>
---
sound/soc/samsung/Kconfig | 8 ++
sound/soc/samsung/Makefile | 2 +
sound/soc/samsung/smdk_wm8994.c | 180 +++++++++++++++++++++++++++++++++++++++
3 files changed, 190 insertions(+), 0 deletions(-)
create mode 100644 sound/soc/samsung/smdk_wm8994.c
diff --git a/sound/soc/samsung/Kconfig b/sound/soc/samsung/Kconfig
index 9cedf34..11ff4ad 100644
--- a/sound/soc/samsung/Kconfig
+++ b/sound/soc/samsung/Kconfig
@@ -68,6 +68,14 @@ config ASOC_SAMSUNG_SMDK_WM8580
help
Say Y if you want to add support for SoC audio on the SMDKs.
+config ASOC_SAMSUNG_SMDK_WM8994
+ tristate "SoC I2S Audio support for WM8994 on SMDK"
+ depends on ASOC_SAMSUNG && (MACH_SMDKV310 || MACH_SMDKC210)
+ select SND_SOC_WM8994
+ select SND_SAMSUNG_I2S
+ help
+ Say Y if you want to add support for SoC audio on the SMDKs.
+
config ASOC_SAMSUNG_SMDK2443_WM9710
tristate "SoC AC97 Audio support for SMDK2443 - WM9710"
depends on ASOC_SAMSUNG && MACH_SMDK2443
diff --git a/sound/soc/samsung/Makefile b/sound/soc/samsung/Makefile
index 622e76e..fe694cc 100644
--- a/sound/soc/samsung/Makefile
+++ b/sound/soc/samsung/Makefile
@@ -30,6 +30,7 @@ snd-soc-s3c24xx-simtec-tlv320aic23-objs := s3c24xx_simtec_tlv320aic23.o
snd-soc-h1940-uda1380-objs := h1940_uda1380.o
snd-soc-rx1950-uda1380-objs := rx1950_uda1380.o
snd-soc-smdk-wm8580-objs := smdk_wm8580.o
+snd-soc-smdk-wm8994-objs := smdk_wm8994.o
snd-soc-smdk-wm9713-objs := smdk_wm9713.o
snd-soc-s3c64xx-smartq-wm8987-objs := smartq_wm8987.o
snd-soc-goni-wm8994-objs := goni_wm8994.o
@@ -47,6 +48,7 @@ obj-$(CONFIG_ASOC_SAMSUNG_SIMTEC_TLV320AIC23) += snd-soc-s3c24xx-simtec-tlv320ai
obj-$(CONFIG_ASOC_SAMSUNG_H1940_UDA1380) += snd-soc-h1940-uda1380.o
obj-$(CONFIG_ASOC_SAMSUNG_RX1950_UDA1380) += snd-soc-rx1950-uda1380.o
obj-$(CONFIG_ASOC_SAMSUNG_SMDK_WM8580) += snd-soc-smdk-wm8580.o
+obj-$(CONFIG_ASOC_SAMSUNG_SMDK_WM8994) += snd-soc-smdk-wm8994.o
obj-$(CONFIG_ASOC_SAMSUNG_SMDK_WM9713) += snd-soc-smdk-wm9713.o
obj-$(CONFIG_ASOC_SMARTQ) += snd-soc-s3c64xx-smartq-wm8987.o
obj-$(CONFIG_ASOC_SAMSUNG_SMDK_SPDIF) += snd-soc-smdk-spdif.o
diff --git a/sound/soc/samsung/smdk_wm8994.c b/sound/soc/samsung/smdk_wm8994.c
new file mode 100644
index 0000000..25313f6
--- /dev/null
+++ b/sound/soc/samsung/smdk_wm8994.c
@@ -0,0 +1,176 @@
+/*
+ * smdk_wm8994.c
+ *
+ * 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 "../codecs/wm8994.h"
+
+ /*
+ * Default CFG switch settings to use this driver:
+ * SMDKV310: 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 16.934MHZ crystal attached to WM8994 */
+#define SMDK_WM8994_FREQ 16934000
+
+static int smdk_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 *cpu_dai = rtd->cpu_dai;
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+ unsigned int pll_out;
+ int ret;
+
+ /* AIF1CLK should be >=3MHz for optimal performance */
+ if (params_rate(params) == 8000 || params_rate(params) == 11025)
+ pll_out = params_rate(params) * 512;
+ else
+ pll_out = params_rate(params) * 256;
+
+ ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S
+ | SND_SOC_DAIFMT_NB_NF
+ | SND_SOC_DAIFMT_CBM_CFM);
+ if (ret < 0)
+ return ret;
+
+ ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S
+ | SND_SOC_DAIFMT_NB_NF
+ | SND_SOC_DAIFMT_CBM_CFM);
+ if (ret < 0)
+ return ret;
+
+ ret = snd_soc_dai_set_pll(codec_dai, WM8994_FLL1, WM8994_FLL_SRC_MCLK1,
+ SMDK_WM8994_FREQ, pll_out);
+ if (ret < 0)
+ return ret;
+
+ ret = snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_FLL1,
+ pll_out, SND_SOC_CLOCK_IN);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+/*
+ * SMDK WM8994 DAI operations.
+ */
+static struct snd_soc_ops smdk_ops = {
+ .hw_params = smdk_hw_params,
+};
+
+static int smdk_wm8994_init_paiftx(struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_soc_codec *codec = rtd->codec;
+ struct snd_soc_dapm_context *dapm = &codec->dapm;
+
+ /* HeadPhone */
+ snd_soc_dapm_enable_pin(dapm, "HPOUT1R");
+ snd_soc_dapm_enable_pin(dapm, "HPOUT1L");
+
+ /* MicIn */
+ snd_soc_dapm_enable_pin(dapm, "IN1LN");
+ snd_soc_dapm_enable_pin(dapm, "IN1RN");
+
+ /* LineIn */
+ snd_soc_dapm_enable_pin(dapm, "IN2LN");
+ snd_soc_dapm_enable_pin(dapm, "IN2RN");
+
+ /* Other pins NC */
+ snd_soc_dapm_nc_pin(dapm, "HPOUT2P");
+ snd_soc_dapm_nc_pin(dapm, "HPOUT2N");
+ snd_soc_dapm_nc_pin(dapm, "SPKOUTLN");
+ snd_soc_dapm_nc_pin(dapm, "SPKOUTLP");
+ snd_soc_dapm_nc_pin(dapm, "SPKOUTRP");
+ snd_soc_dapm_nc_pin(dapm, "SPKOUTRN");
+ 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, "IN1LP");
+ snd_soc_dapm_nc_pin(dapm, "IN2LP:VXRN");
+ snd_soc_dapm_nc_pin(dapm, "IN1RP");
+ snd_soc_dapm_nc_pin(dapm, "IN2RP:VXRP");
+
+ snd_soc_dapm_sync(dapm);
+
+ return 0;
+}
+
+static struct snd_soc_dai_link smdk_dai[] = {
+ { /* Primary DAI i/f */
+ .name = "WM8994 AIF1",
+ .stream_name = "Pri_Dai",
+ .cpu_dai_name = "samsung-i2s.0",
+ .codec_dai_name = "wm8994-aif1",
+ .platform_name = "samsung-audio",
+ .codec_name = "wm8994-codec",
+ .init = smdk_wm8994_init_paiftx,
+ .ops = &smdk_ops,
+ }, { /* Sec_Fifo Playback i/f */
+ .name = "Sec_FIFO TX",
+ .stream_name = "Sec_Dai",
+ .cpu_dai_name = "samsung-i2s.4",
+ .codec_dai_name = "wm8994-aif1",
+ .platform_name = "samsung-audio",
+ .codec_name = "wm8994-codec",
+ .ops = &smdk_ops,
+ },
+};
+
+static struct snd_soc_card smdk = {
+ .name = "SMDK-I2S",
+ .dai_link = smdk_dai,
+ .num_links = ARRAY_SIZE(smdk_dai),
+};
+
+static struct platform_device *smdk_snd_device;
+
+static int __init smdk_audio_init(void)
+{
+ int ret;
+
+ smdk_snd_device = platform_device_alloc("soc-audio", -1);
+ if (!smdk_snd_device)
+ return -ENOMEM;
+
+ platform_set_drvdata(smdk_snd_device, &smdk);
+
+ ret = platform_device_add(smdk_snd_device);
+ if (ret)
+ platform_device_put(smdk_snd_device);
+
+ return ret;
+}
+module_init(smdk_audio_init);
+
+static void __exit smdk_audio_exit(void)
+{
+ platform_device_unregister(smdk_snd_device);
+}
+module_exit(smdk_audio_exit);
+
+MODULE_DESCRIPTION("ALSA SoC SMDK WM8994");
+MODULE_LICENSE("GPL");
--
1.6.2.5
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