Commit | Line | Data |
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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> |
d30c148b | 14 | #include <linux/of_device.h> |
96657d33 JB |
15 | |
16 | /* | |
17 | * Default CFG switch settings to use this driver: | |
18 | * SMDKV310: CFG5-1000, CFG7-111111 | |
19 | */ | |
20 | ||
21 | /* | |
22 | * Configure audio route as :- | |
23 | * $ amixer sset 'DAC1' on,on | |
24 | * $ amixer sset 'Right Headphone Mux' 'DAC' | |
25 | * $ amixer sset 'Left Headphone Mux' 'DAC' | |
26 | * $ amixer sset 'DAC1R Mixer AIF1.1' on | |
27 | * $ amixer sset 'DAC1L Mixer AIF1.1' on | |
28 | * $ amixer sset 'IN2L' on | |
29 | * $ amixer sset 'IN2L PGA IN2LN' on | |
30 | * $ amixer sset 'MIXINL IN2L' on | |
31 | * $ amixer sset 'AIF1ADC1L Mixer ADC/DMIC' on | |
32 | * $ amixer sset 'IN2R' on | |
33 | * $ amixer sset 'IN2R PGA IN2RN' on | |
34 | * $ amixer sset 'MIXINR IN2R' on | |
35 | * $ amixer sset 'AIF1ADC1R Mixer ADC/DMIC' on | |
36 | */ | |
37 | ||
38 | /* SMDK has a 16.934MHZ crystal attached to WM8994 */ | |
39 | #define SMDK_WM8994_FREQ 16934000 | |
40 | ||
d30c148b MB |
41 | struct smdk_wm8994_data { |
42 | int mclk1_rate; | |
43 | }; | |
44 | ||
45 | /* Default SMDKs */ | |
46 | static struct smdk_wm8994_data smdk_board_data = { | |
47 | .mclk1_rate = SMDK_WM8994_FREQ, | |
48 | }; | |
49 | ||
96657d33 JB |
50 | static int smdk_hw_params(struct snd_pcm_substream *substream, |
51 | struct snd_pcm_hw_params *params) | |
52 | { | |
53 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
96657d33 JB |
54 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
55 | unsigned int pll_out; | |
56 | int ret; | |
57 | ||
58 | /* AIF1CLK should be >=3MHz for optimal performance */ | |
b3d7615f GM |
59 | if (params_format(params) == SNDRV_PCM_FORMAT_S24_LE) |
60 | pll_out = params_rate(params) * 384; | |
61 | else if (params_rate(params) == 8000 || params_rate(params) == 11025) | |
96657d33 JB |
62 | pll_out = params_rate(params) * 512; |
63 | else | |
64 | pll_out = params_rate(params) * 256; | |
65 | ||
96657d33 JB |
66 | ret = snd_soc_dai_set_pll(codec_dai, WM8994_FLL1, WM8994_FLL_SRC_MCLK1, |
67 | SMDK_WM8994_FREQ, pll_out); | |
68 | if (ret < 0) | |
69 | return ret; | |
70 | ||
71 | ret = snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_FLL1, | |
72 | pll_out, SND_SOC_CLOCK_IN); | |
73 | if (ret < 0) | |
74 | return ret; | |
75 | ||
76 | return 0; | |
77 | } | |
78 | ||
79 | /* | |
80 | * SMDK WM8994 DAI operations. | |
81 | */ | |
82 | static struct snd_soc_ops smdk_ops = { | |
83 | .hw_params = smdk_hw_params, | |
84 | }; | |
85 | ||
86 | static int smdk_wm8994_init_paiftx(struct snd_soc_pcm_runtime *rtd) | |
87 | { | |
88 | struct snd_soc_codec *codec = rtd->codec; | |
89 | struct snd_soc_dapm_context *dapm = &codec->dapm; | |
90 | ||
91 | /* HeadPhone */ | |
92 | snd_soc_dapm_enable_pin(dapm, "HPOUT1R"); | |
93 | snd_soc_dapm_enable_pin(dapm, "HPOUT1L"); | |
94 | ||
95 | /* MicIn */ | |
96 | snd_soc_dapm_enable_pin(dapm, "IN1LN"); | |
97 | snd_soc_dapm_enable_pin(dapm, "IN1RN"); | |
98 | ||
99 | /* LineIn */ | |
100 | snd_soc_dapm_enable_pin(dapm, "IN2LN"); | |
101 | snd_soc_dapm_enable_pin(dapm, "IN2RN"); | |
102 | ||
103 | /* Other pins NC */ | |
104 | snd_soc_dapm_nc_pin(dapm, "HPOUT2P"); | |
105 | snd_soc_dapm_nc_pin(dapm, "HPOUT2N"); | |
106 | snd_soc_dapm_nc_pin(dapm, "SPKOUTLN"); | |
107 | snd_soc_dapm_nc_pin(dapm, "SPKOUTLP"); | |
108 | snd_soc_dapm_nc_pin(dapm, "SPKOUTRP"); | |
109 | snd_soc_dapm_nc_pin(dapm, "SPKOUTRN"); | |
110 | snd_soc_dapm_nc_pin(dapm, "LINEOUT1N"); | |
111 | snd_soc_dapm_nc_pin(dapm, "LINEOUT1P"); | |
112 | snd_soc_dapm_nc_pin(dapm, "LINEOUT2N"); | |
113 | snd_soc_dapm_nc_pin(dapm, "LINEOUT2P"); | |
114 | snd_soc_dapm_nc_pin(dapm, "IN1LP"); | |
115 | snd_soc_dapm_nc_pin(dapm, "IN2LP:VXRN"); | |
116 | snd_soc_dapm_nc_pin(dapm, "IN1RP"); | |
117 | snd_soc_dapm_nc_pin(dapm, "IN2RP:VXRP"); | |
118 | ||
96657d33 JB |
119 | return 0; |
120 | } | |
121 | ||
122 | static struct snd_soc_dai_link smdk_dai[] = { | |
123 | { /* Primary DAI i/f */ | |
124 | .name = "WM8994 AIF1", | |
125 | .stream_name = "Pri_Dai", | |
126 | .cpu_dai_name = "samsung-i2s.0", | |
127 | .codec_dai_name = "wm8994-aif1", | |
a08485d8 | 128 | .platform_name = "samsung-i2s.0", |
96657d33 JB |
129 | .codec_name = "wm8994-codec", |
130 | .init = smdk_wm8994_init_paiftx, | |
f6ecf50b MB |
131 | .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
132 | SND_SOC_DAIFMT_CBM_CFM, | |
96657d33 JB |
133 | .ops = &smdk_ops, |
134 | }, { /* Sec_Fifo Playback i/f */ | |
135 | .name = "Sec_FIFO TX", | |
136 | .stream_name = "Sec_Dai", | |
7c62eebb | 137 | .cpu_dai_name = "samsung-i2s-sec", |
96657d33 | 138 | .codec_dai_name = "wm8994-aif1", |
7c62eebb | 139 | .platform_name = "samsung-i2s-sec", |
96657d33 | 140 | .codec_name = "wm8994-codec", |
f6ecf50b MB |
141 | .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
142 | SND_SOC_DAIFMT_CBM_CFM, | |
96657d33 JB |
143 | .ops = &smdk_ops, |
144 | }, | |
145 | }; | |
146 | ||
147 | static struct snd_soc_card smdk = { | |
148 | .name = "SMDK-I2S", | |
095d79dc | 149 | .owner = THIS_MODULE, |
96657d33 JB |
150 | .dai_link = smdk_dai, |
151 | .num_links = ARRAY_SIZE(smdk_dai), | |
152 | }; | |
153 | ||
d30c148b MB |
154 | #ifdef CONFIG_OF |
155 | static const struct of_device_id samsung_wm8994_of_match[] = { | |
156 | { .compatible = "samsung,smdk-wm8994", .data = &smdk_board_data }, | |
157 | {}, | |
158 | }; | |
159 | MODULE_DEVICE_TABLE(of, samsung_wm8994_of_match); | |
160 | #endif /* CONFIG_OF */ | |
96657d33 | 161 | |
fdca21ad | 162 | static int smdk_audio_probe(struct platform_device *pdev) |
96657d33 JB |
163 | { |
164 | int ret; | |
28a48058 | 165 | struct device_node *np = pdev->dev.of_node; |
9c9acc91 | 166 | struct snd_soc_card *card = &smdk; |
d30c148b MB |
167 | struct smdk_wm8994_data *board; |
168 | const struct of_device_id *id; | |
96657d33 | 169 | |
9c9acc91 | 170 | card->dev = &pdev->dev; |
28a48058 | 171 | |
d30c148b MB |
172 | board = devm_kzalloc(&pdev->dev, sizeof(*board), GFP_KERNEL); |
173 | if (!board) | |
174 | return -ENOMEM; | |
175 | ||
28a48058 PV |
176 | if (np) { |
177 | smdk_dai[0].cpu_dai_name = NULL; | |
178 | smdk_dai[0].cpu_of_node = of_parse_phandle(np, | |
179 | "samsung,i2s-controller", 0); | |
180 | if (!smdk_dai[0].cpu_of_node) { | |
181 | dev_err(&pdev->dev, | |
182 | "Property 'samsung,i2s-controller' missing or invalid\n"); | |
183 | ret = -EINVAL; | |
184 | } | |
185 | ||
186 | smdk_dai[0].platform_name = NULL; | |
187 | smdk_dai[0].platform_of_node = smdk_dai[0].cpu_of_node; | |
188 | } | |
189 | ||
d30c148b MB |
190 | id = of_match_device(samsung_wm8994_of_match, &pdev->dev); |
191 | if (id) | |
192 | *board = *((struct smdk_wm8994_data *)id->data); | |
193 | ||
194 | platform_set_drvdata(pdev, board); | |
195 | ||
9a8e0322 | 196 | ret = devm_snd_soc_register_card(&pdev->dev, card); |
96657d33 | 197 | |
96657d33 | 198 | if (ret) |
9c9acc91 | 199 | dev_err(&pdev->dev, "snd_soc_register_card() failed:%d\n", ret); |
96657d33 JB |
200 | |
201 | return ret; | |
202 | } | |
96657d33 | 203 | |
9c9acc91 SK |
204 | static struct platform_driver smdk_audio_driver = { |
205 | .driver = { | |
0d47acc4 | 206 | .name = "smdk-audio-wm8894", |
9c9acc91 | 207 | .owner = THIS_MODULE, |
28a48058 | 208 | .of_match_table = of_match_ptr(samsung_wm8994_of_match), |
9c9acc91 SK |
209 | }, |
210 | .probe = smdk_audio_probe, | |
9c9acc91 SK |
211 | }; |
212 | ||
213 | module_platform_driver(smdk_audio_driver); | |
96657d33 JB |
214 | |
215 | MODULE_DESCRIPTION("ALSA SoC SMDK WM8994"); | |
216 | MODULE_LICENSE("GPL"); | |
0d47acc4 | 217 | MODULE_ALIAS("platform:smdk-audio-wm8994"); |