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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> |
28a48058 | 13 | #include <linux/of.h> |
96657d33 JB |
14 | |
15 | /* | |
16 | * Default CFG switch settings to use this driver: | |
17 | * SMDKV310: CFG5-1000, CFG7-111111 | |
18 | */ | |
19 | ||
20 | /* | |
21 | * Configure audio route as :- | |
22 | * $ amixer sset 'DAC1' on,on | |
23 | * $ amixer sset 'Right Headphone Mux' 'DAC' | |
24 | * $ amixer sset 'Left Headphone Mux' 'DAC' | |
25 | * $ amixer sset 'DAC1R Mixer AIF1.1' on | |
26 | * $ amixer sset 'DAC1L Mixer AIF1.1' on | |
27 | * $ amixer sset 'IN2L' on | |
28 | * $ amixer sset 'IN2L PGA IN2LN' on | |
29 | * $ amixer sset 'MIXINL IN2L' on | |
30 | * $ amixer sset 'AIF1ADC1L Mixer ADC/DMIC' on | |
31 | * $ amixer sset 'IN2R' on | |
32 | * $ amixer sset 'IN2R PGA IN2RN' on | |
33 | * $ amixer sset 'MIXINR IN2R' on | |
34 | * $ amixer sset 'AIF1ADC1R Mixer ADC/DMIC' on | |
35 | */ | |
36 | ||
37 | /* SMDK has a 16.934MHZ crystal attached to WM8994 */ | |
38 | #define SMDK_WM8994_FREQ 16934000 | |
39 | ||
40 | static int smdk_hw_params(struct snd_pcm_substream *substream, | |
41 | struct snd_pcm_hw_params *params) | |
42 | { | |
43 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
44 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
45 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
46 | unsigned int pll_out; | |
47 | int ret; | |
48 | ||
49 | /* AIF1CLK should be >=3MHz for optimal performance */ | |
b3d7615f GM |
50 | if (params_format(params) == SNDRV_PCM_FORMAT_S24_LE) |
51 | pll_out = params_rate(params) * 384; | |
52 | else if (params_rate(params) == 8000 || params_rate(params) == 11025) | |
96657d33 JB |
53 | pll_out = params_rate(params) * 512; |
54 | else | |
55 | pll_out = params_rate(params) * 256; | |
56 | ||
57 | ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S | |
58 | | SND_SOC_DAIFMT_NB_NF | |
59 | | SND_SOC_DAIFMT_CBM_CFM); | |
60 | if (ret < 0) | |
61 | return ret; | |
62 | ||
63 | ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S | |
64 | | SND_SOC_DAIFMT_NB_NF | |
65 | | SND_SOC_DAIFMT_CBM_CFM); | |
66 | if (ret < 0) | |
67 | return ret; | |
68 | ||
69 | ret = snd_soc_dai_set_pll(codec_dai, WM8994_FLL1, WM8994_FLL_SRC_MCLK1, | |
70 | SMDK_WM8994_FREQ, pll_out); | |
71 | if (ret < 0) | |
72 | return ret; | |
73 | ||
74 | ret = snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_FLL1, | |
75 | pll_out, SND_SOC_CLOCK_IN); | |
76 | if (ret < 0) | |
77 | return ret; | |
78 | ||
79 | return 0; | |
80 | } | |
81 | ||
82 | /* | |
83 | * SMDK WM8994 DAI operations. | |
84 | */ | |
85 | static struct snd_soc_ops smdk_ops = { | |
86 | .hw_params = smdk_hw_params, | |
87 | }; | |
88 | ||
89 | static int smdk_wm8994_init_paiftx(struct snd_soc_pcm_runtime *rtd) | |
90 | { | |
91 | struct snd_soc_codec *codec = rtd->codec; | |
92 | struct snd_soc_dapm_context *dapm = &codec->dapm; | |
93 | ||
94 | /* HeadPhone */ | |
95 | snd_soc_dapm_enable_pin(dapm, "HPOUT1R"); | |
96 | snd_soc_dapm_enable_pin(dapm, "HPOUT1L"); | |
97 | ||
98 | /* MicIn */ | |
99 | snd_soc_dapm_enable_pin(dapm, "IN1LN"); | |
100 | snd_soc_dapm_enable_pin(dapm, "IN1RN"); | |
101 | ||
102 | /* LineIn */ | |
103 | snd_soc_dapm_enable_pin(dapm, "IN2LN"); | |
104 | snd_soc_dapm_enable_pin(dapm, "IN2RN"); | |
105 | ||
106 | /* Other pins NC */ | |
107 | snd_soc_dapm_nc_pin(dapm, "HPOUT2P"); | |
108 | snd_soc_dapm_nc_pin(dapm, "HPOUT2N"); | |
109 | snd_soc_dapm_nc_pin(dapm, "SPKOUTLN"); | |
110 | snd_soc_dapm_nc_pin(dapm, "SPKOUTLP"); | |
111 | snd_soc_dapm_nc_pin(dapm, "SPKOUTRP"); | |
112 | snd_soc_dapm_nc_pin(dapm, "SPKOUTRN"); | |
113 | snd_soc_dapm_nc_pin(dapm, "LINEOUT1N"); | |
114 | snd_soc_dapm_nc_pin(dapm, "LINEOUT1P"); | |
115 | snd_soc_dapm_nc_pin(dapm, "LINEOUT2N"); | |
116 | snd_soc_dapm_nc_pin(dapm, "LINEOUT2P"); | |
117 | snd_soc_dapm_nc_pin(dapm, "IN1LP"); | |
118 | snd_soc_dapm_nc_pin(dapm, "IN2LP:VXRN"); | |
119 | snd_soc_dapm_nc_pin(dapm, "IN1RP"); | |
120 | snd_soc_dapm_nc_pin(dapm, "IN2RP:VXRP"); | |
121 | ||
96657d33 JB |
122 | return 0; |
123 | } | |
124 | ||
125 | static struct snd_soc_dai_link smdk_dai[] = { | |
126 | { /* Primary DAI i/f */ | |
127 | .name = "WM8994 AIF1", | |
128 | .stream_name = "Pri_Dai", | |
129 | .cpu_dai_name = "samsung-i2s.0", | |
130 | .codec_dai_name = "wm8994-aif1", | |
a08485d8 | 131 | .platform_name = "samsung-i2s.0", |
96657d33 JB |
132 | .codec_name = "wm8994-codec", |
133 | .init = smdk_wm8994_init_paiftx, | |
134 | .ops = &smdk_ops, | |
135 | }, { /* Sec_Fifo Playback i/f */ | |
136 | .name = "Sec_FIFO TX", | |
137 | .stream_name = "Sec_Dai", | |
7c62eebb | 138 | .cpu_dai_name = "samsung-i2s-sec", |
96657d33 | 139 | .codec_dai_name = "wm8994-aif1", |
7c62eebb | 140 | .platform_name = "samsung-i2s-sec", |
96657d33 JB |
141 | .codec_name = "wm8994-codec", |
142 | .ops = &smdk_ops, | |
143 | }, | |
144 | }; | |
145 | ||
146 | static struct snd_soc_card smdk = { | |
147 | .name = "SMDK-I2S", | |
095d79dc | 148 | .owner = THIS_MODULE, |
96657d33 JB |
149 | .dai_link = smdk_dai, |
150 | .num_links = ARRAY_SIZE(smdk_dai), | |
151 | }; | |
152 | ||
96657d33 | 153 | |
fdca21ad | 154 | static int smdk_audio_probe(struct platform_device *pdev) |
96657d33 JB |
155 | { |
156 | int ret; | |
28a48058 | 157 | struct device_node *np = pdev->dev.of_node; |
9c9acc91 | 158 | struct snd_soc_card *card = &smdk; |
96657d33 | 159 | |
9c9acc91 | 160 | card->dev = &pdev->dev; |
28a48058 PV |
161 | |
162 | if (np) { | |
163 | smdk_dai[0].cpu_dai_name = NULL; | |
164 | smdk_dai[0].cpu_of_node = of_parse_phandle(np, | |
165 | "samsung,i2s-controller", 0); | |
166 | if (!smdk_dai[0].cpu_of_node) { | |
167 | dev_err(&pdev->dev, | |
168 | "Property 'samsung,i2s-controller' missing or invalid\n"); | |
169 | ret = -EINVAL; | |
170 | } | |
171 | ||
172 | smdk_dai[0].platform_name = NULL; | |
173 | smdk_dai[0].platform_of_node = smdk_dai[0].cpu_of_node; | |
174 | } | |
175 | ||
9c9acc91 | 176 | ret = snd_soc_register_card(card); |
96657d33 | 177 | |
96657d33 | 178 | if (ret) |
9c9acc91 | 179 | dev_err(&pdev->dev, "snd_soc_register_card() failed:%d\n", ret); |
96657d33 JB |
180 | |
181 | return ret; | |
182 | } | |
96657d33 | 183 | |
fdca21ad | 184 | static int smdk_audio_remove(struct platform_device *pdev) |
96657d33 | 185 | { |
9c9acc91 SK |
186 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
187 | ||
188 | snd_soc_unregister_card(card); | |
189 | ||
190 | return 0; | |
96657d33 | 191 | } |
9c9acc91 | 192 | |
28a48058 PV |
193 | #ifdef CONFIG_OF |
194 | static const struct of_device_id samsung_wm8994_of_match[] = { | |
195 | { .compatible = "samsung,smdk-wm8994", }, | |
196 | {}, | |
197 | }; | |
198 | MODULE_DEVICE_TABLE(of, samsung_wm8994_of_match); | |
199 | #endif /* CONFIG_OF */ | |
200 | ||
9c9acc91 SK |
201 | static struct platform_driver smdk_audio_driver = { |
202 | .driver = { | |
203 | .name = "smdk-audio", | |
204 | .owner = THIS_MODULE, | |
28a48058 | 205 | .of_match_table = of_match_ptr(samsung_wm8994_of_match), |
9c9acc91 SK |
206 | }, |
207 | .probe = smdk_audio_probe, | |
fdca21ad | 208 | .remove = smdk_audio_remove, |
9c9acc91 SK |
209 | }; |
210 | ||
211 | module_platform_driver(smdk_audio_driver); | |
96657d33 JB |
212 | |
213 | MODULE_DESCRIPTION("ALSA SoC SMDK WM8994"); | |
214 | MODULE_LICENSE("GPL"); | |
9c9acc91 | 215 | MODULE_ALIAS("platform:smdk-audio"); |