Merge tag 'v2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

[mv-sheeva.git] / sound / soc / samsung / smdk_wm8994.c

diff --git a/sound/soc/samsung/smdk_wm8994.c b/sound/soc/samsung/smdk_wm8994.c
new file mode 100644 (file)
index 0000000..e7c1009
--- /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");