spi-topcliff-pch: add recovery processing in case wait-event timeout
[zen-stable.git] / sound / soc / samsung / smdk_wm8994.c
blob8eb309f23d18247983df33970601a8993747c721
1 /*
2 * smdk_wm8994.c
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License as published by the
6 * Free Software Foundation; either version 2 of the License, or (at your
7 * option) any later version.
8 */
10 #include "../codecs/wm8994.h"
11 #include <sound/pcm_params.h>
12 #include <linux/module.h>
15 * Default CFG switch settings to use this driver:
16 * SMDKV310: CFG5-1000, CFG7-111111
20 * Configure audio route as :-
21 * $ amixer sset 'DAC1' on,on
22 * $ amixer sset 'Right Headphone Mux' 'DAC'
23 * $ amixer sset 'Left Headphone Mux' 'DAC'
24 * $ amixer sset 'DAC1R Mixer AIF1.1' on
25 * $ amixer sset 'DAC1L Mixer AIF1.1' on
26 * $ amixer sset 'IN2L' on
27 * $ amixer sset 'IN2L PGA IN2LN' on
28 * $ amixer sset 'MIXINL IN2L' on
29 * $ amixer sset 'AIF1ADC1L Mixer ADC/DMIC' on
30 * $ amixer sset 'IN2R' on
31 * $ amixer sset 'IN2R PGA IN2RN' on
32 * $ amixer sset 'MIXINR IN2R' on
33 * $ amixer sset 'AIF1ADC1R Mixer ADC/DMIC' on
36 /* SMDK has a 16.934MHZ crystal attached to WM8994 */
37 #define SMDK_WM8994_FREQ 16934000
39 static int smdk_hw_params(struct snd_pcm_substream *substream,
40 struct snd_pcm_hw_params *params)
42 struct snd_soc_pcm_runtime *rtd = substream->private_data;
43 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
44 struct snd_soc_dai *codec_dai = rtd->codec_dai;
45 unsigned int pll_out;
46 int ret;
48 /* AIF1CLK should be >=3MHz for optimal performance */
49 if (params_format(params) == SNDRV_PCM_FORMAT_S24_LE)
50 pll_out = params_rate(params) * 384;
51 else if (params_rate(params) == 8000 || params_rate(params) == 11025)
52 pll_out = params_rate(params) * 512;
53 else
54 pll_out = params_rate(params) * 256;
56 ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S
57 | SND_SOC_DAIFMT_NB_NF
58 | SND_SOC_DAIFMT_CBM_CFM);
59 if (ret < 0)
60 return ret;
62 ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S
63 | SND_SOC_DAIFMT_NB_NF
64 | SND_SOC_DAIFMT_CBM_CFM);
65 if (ret < 0)
66 return ret;
68 ret = snd_soc_dai_set_pll(codec_dai, WM8994_FLL1, WM8994_FLL_SRC_MCLK1,
69 SMDK_WM8994_FREQ, pll_out);
70 if (ret < 0)
71 return ret;
73 ret = snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_FLL1,
74 pll_out, SND_SOC_CLOCK_IN);
75 if (ret < 0)
76 return ret;
78 return 0;
82 * SMDK WM8994 DAI operations.
84 static struct snd_soc_ops smdk_ops = {
85 .hw_params = smdk_hw_params,
88 static int smdk_wm8994_init_paiftx(struct snd_soc_pcm_runtime *rtd)
90 struct snd_soc_codec *codec = rtd->codec;
91 struct snd_soc_dapm_context *dapm = &codec->dapm;
93 /* HeadPhone */
94 snd_soc_dapm_enable_pin(dapm, "HPOUT1R");
95 snd_soc_dapm_enable_pin(dapm, "HPOUT1L");
97 /* MicIn */
98 snd_soc_dapm_enable_pin(dapm, "IN1LN");
99 snd_soc_dapm_enable_pin(dapm, "IN1RN");
101 /* LineIn */
102 snd_soc_dapm_enable_pin(dapm, "IN2LN");
103 snd_soc_dapm_enable_pin(dapm, "IN2RN");
105 /* Other pins NC */
106 snd_soc_dapm_nc_pin(dapm, "HPOUT2P");
107 snd_soc_dapm_nc_pin(dapm, "HPOUT2N");
108 snd_soc_dapm_nc_pin(dapm, "SPKOUTLN");
109 snd_soc_dapm_nc_pin(dapm, "SPKOUTLP");
110 snd_soc_dapm_nc_pin(dapm, "SPKOUTRP");
111 snd_soc_dapm_nc_pin(dapm, "SPKOUTRN");
112 snd_soc_dapm_nc_pin(dapm, "LINEOUT1N");
113 snd_soc_dapm_nc_pin(dapm, "LINEOUT1P");
114 snd_soc_dapm_nc_pin(dapm, "LINEOUT2N");
115 snd_soc_dapm_nc_pin(dapm, "LINEOUT2P");
116 snd_soc_dapm_nc_pin(dapm, "IN1LP");
117 snd_soc_dapm_nc_pin(dapm, "IN2LP:VXRN");
118 snd_soc_dapm_nc_pin(dapm, "IN1RP");
119 snd_soc_dapm_nc_pin(dapm, "IN2RP:VXRP");
121 return 0;
124 static struct snd_soc_dai_link smdk_dai[] = {
125 { /* Primary DAI i/f */
126 .name = "WM8994 AIF1",
127 .stream_name = "Pri_Dai",
128 .cpu_dai_name = "samsung-i2s.0",
129 .codec_dai_name = "wm8994-aif1",
130 .platform_name = "samsung-audio",
131 .codec_name = "wm8994-codec",
132 .init = smdk_wm8994_init_paiftx,
133 .ops = &smdk_ops,
134 }, { /* Sec_Fifo Playback i/f */
135 .name = "Sec_FIFO TX",
136 .stream_name = "Sec_Dai",
137 .cpu_dai_name = "samsung-i2s.4",
138 .codec_dai_name = "wm8994-aif1",
139 .platform_name = "samsung-audio",
140 .codec_name = "wm8994-codec",
141 .ops = &smdk_ops,
145 static struct snd_soc_card smdk = {
146 .name = "SMDK-I2S",
147 .owner = THIS_MODULE,
148 .dai_link = smdk_dai,
149 .num_links = ARRAY_SIZE(smdk_dai),
152 static struct platform_device *smdk_snd_device;
154 static int __init smdk_audio_init(void)
156 int ret;
158 smdk_snd_device = platform_device_alloc("soc-audio", -1);
159 if (!smdk_snd_device)
160 return -ENOMEM;
162 platform_set_drvdata(smdk_snd_device, &smdk);
164 ret = platform_device_add(smdk_snd_device);
165 if (ret)
166 platform_device_put(smdk_snd_device);
168 return ret;
170 module_init(smdk_audio_init);
172 static void __exit smdk_audio_exit(void)
174 platform_device_unregister(smdk_snd_device);
176 module_exit(smdk_audio_exit);
178 MODULE_DESCRIPTION("ALSA SoC SMDK WM8994");
179 MODULE_LICENSE("GPL");