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96657d33 JB |
1 | /* |
2 | * smdk_wm8994.c | |
3 | * | |
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 | */ | |
9 | ||
10 | #include "../codecs/wm8994.h" | |
b3d7615f | 11 | #include <sound/pcm_params.h> |
3d94a2a5 | 12 | #include <linux/module.h> |
96657d33 JB |
13 | |
14 | /* | |
15 | * Default CFG switch settings to use this driver: | |
16 | * SMDKV310: CFG5-1000, CFG7-111111 | |
17 | */ | |
18 | ||
19 | /* | |
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 | |
34 | */ | |
35 | ||
36 | /* SMDK has a 16.934MHZ crystal attached to WM8994 */ | |
37 | #define SMDK_WM8994_FREQ 16934000 | |
38 | ||
39 | static int smdk_hw_params(struct snd_pcm_substream *substream, | |
40 | struct snd_pcm_hw_params *params) | |
41 | { | |
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; | |
47 | ||
48 | /* AIF1CLK should be >=3MHz for optimal performance */ | |
b3d7615f GM |
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) | |
96657d33 JB |
52 | pll_out = params_rate(params) * 512; |
53 | else | |
54 | pll_out = params_rate(params) * 256; | |
55 | ||
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; | |
61 | ||
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; | |
67 | ||
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; | |
72 | ||
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; | |
77 | ||
78 | return 0; | |
79 | } | |
80 | ||
81 | /* | |
82 | * SMDK WM8994 DAI operations. | |
83 | */ | |
84 | static struct snd_soc_ops smdk_ops = { | |
85 | .hw_params = smdk_hw_params, | |
86 | }; | |
87 | ||
88 | static int smdk_wm8994_init_paiftx(struct snd_soc_pcm_runtime *rtd) | |
89 | { | |
90 | struct snd_soc_codec *codec = rtd->codec; | |
91 | struct snd_soc_dapm_context *dapm = &codec->dapm; | |
92 | ||
93 | /* HeadPhone */ | |
94 | snd_soc_dapm_enable_pin(dapm, "HPOUT1R"); | |
95 | snd_soc_dapm_enable_pin(dapm, "HPOUT1L"); | |
96 | ||
97 | /* MicIn */ | |
98 | snd_soc_dapm_enable_pin(dapm, "IN1LN"); | |
99 | snd_soc_dapm_enable_pin(dapm, "IN1RN"); | |
100 | ||
101 | /* LineIn */ | |
102 | snd_soc_dapm_enable_pin(dapm, "IN2LN"); | |
103 | snd_soc_dapm_enable_pin(dapm, "IN2RN"); | |
104 | ||
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"); | |
120 | ||
96657d33 JB |
121 | return 0; |
122 | } | |
123 | ||
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, | |
142 | }, | |
143 | }; | |
144 | ||
145 | static struct snd_soc_card smdk = { | |
146 | .name = "SMDK-I2S", | |
095d79dc | 147 | .owner = THIS_MODULE, |
96657d33 JB |
148 | .dai_link = smdk_dai, |
149 | .num_links = ARRAY_SIZE(smdk_dai), | |
150 | }; | |
151 | ||
152 | static struct platform_device *smdk_snd_device; | |
153 | ||
154 | static int __init smdk_audio_init(void) | |
155 | { | |
156 | int ret; | |
157 | ||
158 | smdk_snd_device = platform_device_alloc("soc-audio", -1); | |
159 | if (!smdk_snd_device) | |
160 | return -ENOMEM; | |
161 | ||
162 | platform_set_drvdata(smdk_snd_device, &smdk); | |
163 | ||
164 | ret = platform_device_add(smdk_snd_device); | |
165 | if (ret) | |
166 | platform_device_put(smdk_snd_device); | |
167 | ||
168 | return ret; | |
169 | } | |
170 | module_init(smdk_audio_init); | |
171 | ||
172 | static void __exit smdk_audio_exit(void) | |
173 | { | |
174 | platform_device_unregister(smdk_snd_device); | |
175 | } | |
176 | module_exit(smdk_audio_exit); | |
177 | ||
178 | MODULE_DESCRIPTION("ALSA SoC SMDK WM8994"); | |
179 | MODULE_LICENSE("GPL"); |