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22cb839b | 1 | /* |
6414261f | 2 | * Tobermory audio support |
22cb839b MB |
3 | * |
4 | * Copyright 2011 Wolfson Microelectronics | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2 of the License, or (at your | |
9 | * option) any later version. | |
10 | */ | |
11 | ||
12 | #include <sound/soc.h> | |
13 | #include <sound/soc-dapm.h> | |
14 | #include <sound/jack.h> | |
15 | #include <linux/gpio.h> | |
da155d5b | 16 | #include <linux/module.h> |
22cb839b MB |
17 | |
18 | #include "../codecs/wm8962.h" | |
19 | ||
ef473fee MB |
20 | static int sample_rate = 44100; |
21 | ||
6414261f | 22 | static int tobermory_set_bias_level(struct snd_soc_card *card, |
22cb839b MB |
23 | struct snd_soc_dapm_context *dapm, |
24 | enum snd_soc_bias_level level) | |
25 | { | |
26 | struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai; | |
27 | int ret; | |
28 | ||
f79e7ff8 MB |
29 | if (dapm->dev != codec_dai->dev) |
30 | return 0; | |
31 | ||
22cb839b MB |
32 | switch (level) { |
33 | case SND_SOC_BIAS_PREPARE: | |
34 | if (dapm->bias_level == SND_SOC_BIAS_STANDBY) { | |
35 | ret = snd_soc_dai_set_pll(codec_dai, WM8962_FLL, | |
36 | WM8962_FLL_MCLK, 32768, | |
ef473fee | 37 | sample_rate * 512); |
22cb839b | 38 | if (ret < 0) |
67d0c479 | 39 | pr_err("Failed to start FLL: %d\n", ret); |
22cb839b MB |
40 | |
41 | ret = snd_soc_dai_set_sysclk(codec_dai, | |
42 | WM8962_SYSCLK_FLL, | |
ef473fee | 43 | sample_rate * 512, |
22cb839b | 44 | SND_SOC_CLOCK_IN); |
67d0c479 | 45 | if (ret < 0) { |
371e7305 | 46 | pr_err("Failed to set SYSCLK: %d\n", ret); |
631f8e94 MB |
47 | snd_soc_dai_set_pll(codec_dai, WM8962_FLL, |
48 | 0, 0, 0); | |
22cb839b | 49 | return ret; |
67d0c479 | 50 | } |
22cb839b MB |
51 | } |
52 | break; | |
53 | ||
54 | default: | |
55 | break; | |
56 | } | |
57 | ||
58 | return 0; | |
59 | } | |
60 | ||
6414261f | 61 | static int tobermory_set_bias_level_post(struct snd_soc_card *card, |
22cb839b MB |
62 | struct snd_soc_dapm_context *dapm, |
63 | enum snd_soc_bias_level level) | |
64 | { | |
65 | struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai; | |
66 | int ret; | |
67 | ||
f79e7ff8 MB |
68 | if (dapm->dev != codec_dai->dev) |
69 | return 0; | |
70 | ||
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71 | switch (level) { |
72 | case SND_SOC_BIAS_STANDBY: | |
73 | ret = snd_soc_dai_set_sysclk(codec_dai, WM8962_SYSCLK_MCLK, | |
74 | 32768, SND_SOC_CLOCK_IN); | |
67d0c479 MB |
75 | if (ret < 0) { |
76 | pr_err("Failed to switch away from FLL: %d\n", ret); | |
22cb839b | 77 | return ret; |
67d0c479 | 78 | } |
22cb839b MB |
79 | |
80 | ret = snd_soc_dai_set_pll(codec_dai, WM8962_FLL, | |
81 | 0, 0, 0); | |
82 | if (ret < 0) { | |
67d0c479 | 83 | pr_err("Failed to stop FLL: %d\n", ret); |
22cb839b MB |
84 | return ret; |
85 | } | |
86 | break; | |
87 | ||
88 | default: | |
89 | break; | |
90 | } | |
91 | ||
92 | dapm->bias_level = level; | |
93 | ||
94 | return 0; | |
95 | } | |
96 | ||
6414261f | 97 | static int tobermory_hw_params(struct snd_pcm_substream *substream, |
22cb839b MB |
98 | struct snd_pcm_hw_params *params) |
99 | { | |
ef473fee MB |
100 | sample_rate = params_rate(params); |
101 | ||
22cb839b MB |
102 | return 0; |
103 | } | |
104 | ||
6414261f MB |
105 | static struct snd_soc_ops tobermory_ops = { |
106 | .hw_params = tobermory_hw_params, | |
22cb839b MB |
107 | }; |
108 | ||
6414261f | 109 | static struct snd_soc_dai_link tobermory_dai[] = { |
22cb839b MB |
110 | { |
111 | .name = "CPU", | |
112 | .stream_name = "CPU", | |
113 | .cpu_dai_name = "samsung-i2s.0", | |
114 | .codec_dai_name = "wm8962", | |
a08485d8 | 115 | .platform_name = "samsung-i2s.0", |
22cb839b | 116 | .codec_name = "wm8962.1-001a", |
44fdd433 MB |
117 | .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
118 | | SND_SOC_DAIFMT_CBM_CFM, | |
6414261f | 119 | .ops = &tobermory_ops, |
22cb839b MB |
120 | }, |
121 | }; | |
122 | ||
123 | static const struct snd_kcontrol_new controls[] = { | |
124 | SOC_DAPM_PIN_SWITCH("Main Speaker"), | |
8c756158 | 125 | SOC_DAPM_PIN_SWITCH("DMIC"), |
22cb839b MB |
126 | }; |
127 | ||
128 | static struct snd_soc_dapm_widget widgets[] = { | |
129 | SND_SOC_DAPM_HP("Headphone", NULL), | |
130 | SND_SOC_DAPM_MIC("Headset Mic", NULL), | |
131 | ||
132 | SND_SOC_DAPM_MIC("DMIC", NULL), | |
7564463c | 133 | SND_SOC_DAPM_MIC("AMIC", NULL), |
22cb839b MB |
134 | |
135 | SND_SOC_DAPM_SPK("Main Speaker", NULL), | |
136 | }; | |
137 | ||
138 | static struct snd_soc_dapm_route audio_paths[] = { | |
139 | { "Headphone", NULL, "HPOUTL" }, | |
140 | { "Headphone", NULL, "HPOUTR" }, | |
141 | ||
142 | { "Main Speaker", NULL, "SPKOUTL" }, | |
143 | { "Main Speaker", NULL, "SPKOUTR" }, | |
144 | ||
086d7f80 MB |
145 | { "Headset Mic", NULL, "MICBIAS" }, |
146 | { "IN4L", NULL, "Headset Mic" }, | |
147 | { "IN4R", NULL, "Headset Mic" }, | |
22cb839b | 148 | |
7564463c MB |
149 | { "AMIC", NULL, "MICBIAS" }, |
150 | { "IN1L", NULL, "AMIC" }, | |
151 | { "IN1R", NULL, "AMIC" }, | |
152 | ||
086d7f80 MB |
153 | { "DMIC", NULL, "MICBIAS" }, |
154 | { "DMICDAT", NULL, "DMIC" }, | |
22cb839b MB |
155 | }; |
156 | ||
6414261f | 157 | static struct snd_soc_jack tobermory_headset; |
22cb839b MB |
158 | |
159 | /* Headset jack detection DAPM pins */ | |
6414261f | 160 | static struct snd_soc_jack_pin tobermory_headset_pins[] = { |
22cb839b MB |
161 | { |
162 | .pin = "Headset Mic", | |
163 | .mask = SND_JACK_MICROPHONE, | |
164 | }, | |
165 | { | |
166 | .pin = "Headphone", | |
167 | .mask = SND_JACK_MICROPHONE, | |
168 | }, | |
169 | }; | |
170 | ||
6414261f | 171 | static int tobermory_late_probe(struct snd_soc_card *card) |
22cb839b MB |
172 | { |
173 | struct snd_soc_codec *codec = card->rtd[0].codec; | |
174 | struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai; | |
175 | int ret; | |
176 | ||
177 | ret = snd_soc_dai_set_sysclk(codec_dai, WM8962_SYSCLK_MCLK, | |
178 | 32768, SND_SOC_CLOCK_IN); | |
179 | if (ret < 0) | |
180 | return ret; | |
181 | ||
182 | ret = snd_soc_jack_new(codec, "Headset", | |
183 | SND_JACK_HEADSET | SND_JACK_BTN_0, | |
6414261f | 184 | &tobermory_headset); |
22cb839b MB |
185 | if (ret) |
186 | return ret; | |
187 | ||
6414261f MB |
188 | ret = snd_soc_jack_add_pins(&tobermory_headset, |
189 | ARRAY_SIZE(tobermory_headset_pins), | |
190 | tobermory_headset_pins); | |
22cb839b MB |
191 | if (ret) |
192 | return ret; | |
193 | ||
6414261f | 194 | wm8962_mic_detect(codec, &tobermory_headset); |
22cb839b MB |
195 | |
196 | return 0; | |
197 | } | |
198 | ||
6414261f MB |
199 | static struct snd_soc_card tobermory = { |
200 | .name = "Tobermory", | |
095d79dc | 201 | .owner = THIS_MODULE, |
6414261f MB |
202 | .dai_link = tobermory_dai, |
203 | .num_links = ARRAY_SIZE(tobermory_dai), | |
22cb839b | 204 | |
6414261f MB |
205 | .set_bias_level = tobermory_set_bias_level, |
206 | .set_bias_level_post = tobermory_set_bias_level_post, | |
22cb839b MB |
207 | |
208 | .controls = controls, | |
209 | .num_controls = ARRAY_SIZE(controls), | |
210 | .dapm_widgets = widgets, | |
211 | .num_dapm_widgets = ARRAY_SIZE(widgets), | |
212 | .dapm_routes = audio_paths, | |
213 | .num_dapm_routes = ARRAY_SIZE(audio_paths), | |
39afd66c | 214 | .fully_routed = true, |
22cb839b | 215 | |
6414261f | 216 | .late_probe = tobermory_late_probe, |
22cb839b MB |
217 | }; |
218 | ||
fdca21ad | 219 | static int tobermory_probe(struct platform_device *pdev) |
22cb839b | 220 | { |
6414261f | 221 | struct snd_soc_card *card = &tobermory; |
22cb839b MB |
222 | int ret; |
223 | ||
224 | card->dev = &pdev->dev; | |
225 | ||
c583883e TB |
226 | ret = devm_snd_soc_register_card(&pdev->dev, card); |
227 | if (ret) | |
22cb839b MB |
228 | dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", |
229 | ret); | |
22cb839b | 230 | |
c583883e | 231 | return ret; |
22cb839b MB |
232 | } |
233 | ||
6414261f | 234 | static struct platform_driver tobermory_driver = { |
22cb839b | 235 | .driver = { |
6414261f | 236 | .name = "tobermory", |
22cb839b MB |
237 | .pm = &snd_soc_pm_ops, |
238 | }, | |
6414261f | 239 | .probe = tobermory_probe, |
22cb839b MB |
240 | }; |
241 | ||
6414261f | 242 | module_platform_driver(tobermory_driver); |
22cb839b | 243 | |
6414261f | 244 | MODULE_DESCRIPTION("Tobermory audio support"); |
22cb839b MB |
245 | MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); |
246 | MODULE_LICENSE("GPL"); | |
6414261f | 247 | MODULE_ALIAS("platform:tobermory"); |