blob: 8ac42bf820909d59118ca944f3e744285f427537 [file] [log] [blame]
Mark Brown22cb8392011-04-25 18:30:45 +01001/*
2 * Speyside with WM8962 audio support
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>
16
17#include "../codecs/wm8962.h"
18
19static int speyside_wm8962_set_bias_level(struct snd_soc_card *card,
20 struct snd_soc_dapm_context *dapm,
21 enum snd_soc_bias_level level)
22{
23 struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
24 int ret;
25
26 switch (level) {
27 case SND_SOC_BIAS_PREPARE:
28 if (dapm->bias_level == SND_SOC_BIAS_STANDBY) {
29 ret = snd_soc_dai_set_pll(codec_dai, WM8962_FLL,
30 WM8962_FLL_MCLK, 32768,
31 44100 * 256);
32 if (ret < 0)
Mark Brown67d0c472011-06-29 14:07:24 -070033 pr_err("Failed to start FLL: %d\n", ret);
Mark Brown22cb8392011-04-25 18:30:45 +010034
35 ret = snd_soc_dai_set_sysclk(codec_dai,
36 WM8962_SYSCLK_FLL,
37 44100 * 256,
38 SND_SOC_CLOCK_IN);
Mark Brown67d0c472011-06-29 14:07:24 -070039 if (ret < 0) {
40 pr_err("Failed to set SYSCLK: %d\n");
Mark Brown22cb8392011-04-25 18:30:45 +010041 return ret;
Mark Brown67d0c472011-06-29 14:07:24 -070042 }
Mark Brown22cb8392011-04-25 18:30:45 +010043 }
44 break;
45
46 default:
47 break;
48 }
49
50 return 0;
51}
52
53static int speyside_wm8962_set_bias_level_post(struct snd_soc_card *card,
54 struct snd_soc_dapm_context *dapm,
55 enum snd_soc_bias_level level)
56{
57 struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
58 int ret;
59
60 switch (level) {
61 case SND_SOC_BIAS_STANDBY:
62 ret = snd_soc_dai_set_sysclk(codec_dai, WM8962_SYSCLK_MCLK,
63 32768, SND_SOC_CLOCK_IN);
Mark Brown67d0c472011-06-29 14:07:24 -070064 if (ret < 0) {
65 pr_err("Failed to switch away from FLL: %d\n", ret);
Mark Brown22cb8392011-04-25 18:30:45 +010066 return ret;
Mark Brown67d0c472011-06-29 14:07:24 -070067 }
Mark Brown22cb8392011-04-25 18:30:45 +010068
69 ret = snd_soc_dai_set_pll(codec_dai, WM8962_FLL,
70 0, 0, 0);
71 if (ret < 0) {
Mark Brown67d0c472011-06-29 14:07:24 -070072 pr_err("Failed to stop FLL: %d\n", ret);
Mark Brown22cb8392011-04-25 18:30:45 +010073 return ret;
74 }
75 break;
76
77 default:
78 break;
79 }
80
81 dapm->bias_level = level;
82
83 return 0;
84}
85
86static int speyside_wm8962_hw_params(struct snd_pcm_substream *substream,
87 struct snd_pcm_hw_params *params)
88{
89 struct snd_soc_pcm_runtime *rtd = substream->private_data;
90 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
91 struct snd_soc_dai *codec_dai = rtd->codec_dai;
92 int ret;
93
94 ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S
95 | SND_SOC_DAIFMT_NB_NF
96 | SND_SOC_DAIFMT_CBM_CFM);
97 if (ret < 0)
98 return ret;
99
100 ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S
101 | SND_SOC_DAIFMT_NB_NF
102 | SND_SOC_DAIFMT_CBM_CFM);
103 if (ret < 0)
104 return ret;
105
106 return 0;
107}
108
109static struct snd_soc_ops speyside_wm8962_ops = {
110 .hw_params = speyside_wm8962_hw_params,
111};
112
113static struct snd_soc_dai_link speyside_wm8962_dai[] = {
114 {
115 .name = "CPU",
116 .stream_name = "CPU",
117 .cpu_dai_name = "samsung-i2s.0",
118 .codec_dai_name = "wm8962",
119 .platform_name = "samsung-audio",
120 .codec_name = "wm8962.1-001a",
121 .ops = &speyside_wm8962_ops,
122 },
123};
124
125static const struct snd_kcontrol_new controls[] = {
126 SOC_DAPM_PIN_SWITCH("Main Speaker"),
127};
128
129static struct snd_soc_dapm_widget widgets[] = {
130 SND_SOC_DAPM_HP("Headphone", NULL),
131 SND_SOC_DAPM_MIC("Headset Mic", NULL),
132
133 SND_SOC_DAPM_MIC("DMIC", NULL),
134
135 SND_SOC_DAPM_SPK("Main Speaker", NULL),
136};
137
138static 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
145 { "MICBIAS", NULL, "Headset Mic" },
146 { "IN4L", NULL, "MICBIAS" },
147 { "IN4R", NULL, "MICBIAS" },
148
149 { "MICBIAS", NULL, "DMIC" },
150 { "DMICDAT", NULL, "MICBIAS" },
151};
152
153static struct snd_soc_jack speyside_wm8962_headset;
154
155/* Headset jack detection DAPM pins */
156static struct snd_soc_jack_pin speyside_wm8962_headset_pins[] = {
157 {
158 .pin = "Headset Mic",
159 .mask = SND_JACK_MICROPHONE,
160 },
161 {
162 .pin = "Headphone",
163 .mask = SND_JACK_MICROPHONE,
164 },
165};
166
167static int speyside_wm8962_late_probe(struct snd_soc_card *card)
168{
169 struct snd_soc_codec *codec = card->rtd[0].codec;
170 struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
171 int ret;
172
173 ret = snd_soc_dai_set_sysclk(codec_dai, WM8962_SYSCLK_MCLK,
174 32768, SND_SOC_CLOCK_IN);
175 if (ret < 0)
176 return ret;
177
178 ret = snd_soc_jack_new(codec, "Headset",
179 SND_JACK_HEADSET | SND_JACK_BTN_0,
180 &speyside_wm8962_headset);
181 if (ret)
182 return ret;
183
184 ret = snd_soc_jack_add_pins(&speyside_wm8962_headset,
185 ARRAY_SIZE(speyside_wm8962_headset_pins),
186 speyside_wm8962_headset_pins);
187 if (ret)
188 return ret;
189
190 wm8962_mic_detect(codec, &speyside_wm8962_headset);
191
192 return 0;
193}
194
195static struct snd_soc_card speyside_wm8962 = {
196 .name = "Speyside WM8962",
197 .dai_link = speyside_wm8962_dai,
198 .num_links = ARRAY_SIZE(speyside_wm8962_dai),
199
200 .set_bias_level = speyside_wm8962_set_bias_level,
201 .set_bias_level_post = speyside_wm8962_set_bias_level_post,
202
203 .controls = controls,
204 .num_controls = ARRAY_SIZE(controls),
205 .dapm_widgets = widgets,
206 .num_dapm_widgets = ARRAY_SIZE(widgets),
207 .dapm_routes = audio_paths,
208 .num_dapm_routes = ARRAY_SIZE(audio_paths),
209
210 .late_probe = speyside_wm8962_late_probe,
211};
212
213static __devinit int speyside_wm8962_probe(struct platform_device *pdev)
214{
215 struct snd_soc_card *card = &speyside_wm8962;
216 int ret;
217
218 card->dev = &pdev->dev;
219
220 ret = snd_soc_register_card(card);
221 if (ret) {
222 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
223 ret);
224 return ret;
225 }
226
227 return 0;
228}
229
230static int __devexit speyside_wm8962_remove(struct platform_device *pdev)
231{
232 struct snd_soc_card *card = platform_get_drvdata(pdev);
233
234 snd_soc_unregister_card(card);
235
236 return 0;
237}
238
239static struct platform_driver speyside_wm8962_driver = {
240 .driver = {
241 .name = "speyside-wm8962",
242 .owner = THIS_MODULE,
243 .pm = &snd_soc_pm_ops,
244 },
245 .probe = speyside_wm8962_probe,
246 .remove = __devexit_p(speyside_wm8962_remove),
247};
248
249static int __init speyside_wm8962_audio_init(void)
250{
251 return platform_driver_register(&speyside_wm8962_driver);
252}
253module_init(speyside_wm8962_audio_init);
254
255static void __exit speyside_wm8962_audio_exit(void)
256{
257 platform_driver_unregister(&speyside_wm8962_driver);
258}
259module_exit(speyside_wm8962_audio_exit);
260
261MODULE_DESCRIPTION("Speyside WM8962 audio support");
262MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
263MODULE_LICENSE("GPL");
264MODULE_ALIAS("platform:speyside-wm8962");