2 * Speyside with WM8962 audio support
4 * Copyright 2011 Wolfson Microelectronics
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.
12 #include <sound/soc.h>
13 #include <sound/soc-dapm.h>
14 #include <sound/jack.h>
15 #include <linux/gpio.h>
17 #include "../codecs/wm8962.h"
19 static int sample_rate
= 44100;
21 static int speyside_wm8962_set_bias_level(struct snd_soc_card
*card
,
22 struct snd_soc_dapm_context
*dapm
,
23 enum snd_soc_bias_level level
)
25 struct snd_soc_dai
*codec_dai
= card
->rtd
[0].codec_dai
;
28 if (dapm
->dev
!= codec_dai
->dev
)
32 case SND_SOC_BIAS_PREPARE
:
33 if (dapm
->bias_level
== SND_SOC_BIAS_STANDBY
) {
34 ret
= snd_soc_dai_set_pll(codec_dai
, WM8962_FLL
,
35 WM8962_FLL_MCLK
, 32768,
38 pr_err("Failed to start FLL: %d\n", ret
);
40 ret
= snd_soc_dai_set_sysclk(codec_dai
,
45 pr_err("Failed to set SYSCLK: %d\n", ret
);
58 static int speyside_wm8962_set_bias_level_post(struct snd_soc_card
*card
,
59 struct snd_soc_dapm_context
*dapm
,
60 enum snd_soc_bias_level level
)
62 struct snd_soc_dai
*codec_dai
= card
->rtd
[0].codec_dai
;
65 if (dapm
->dev
!= codec_dai
->dev
)
69 case SND_SOC_BIAS_STANDBY
:
70 ret
= snd_soc_dai_set_sysclk(codec_dai
, WM8962_SYSCLK_MCLK
,
71 32768, SND_SOC_CLOCK_IN
);
73 pr_err("Failed to switch away from FLL: %d\n", ret
);
77 ret
= snd_soc_dai_set_pll(codec_dai
, WM8962_FLL
,
80 pr_err("Failed to stop FLL: %d\n", ret
);
89 dapm
->bias_level
= level
;
94 static int speyside_wm8962_hw_params(struct snd_pcm_substream
*substream
,
95 struct snd_pcm_hw_params
*params
)
97 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
98 struct snd_soc_dai
*cpu_dai
= rtd
->cpu_dai
;
99 struct snd_soc_dai
*codec_dai
= rtd
->codec_dai
;
102 ret
= snd_soc_dai_set_fmt(codec_dai
, SND_SOC_DAIFMT_I2S
103 | SND_SOC_DAIFMT_NB_NF
104 | SND_SOC_DAIFMT_CBM_CFM
);
108 ret
= snd_soc_dai_set_fmt(cpu_dai
, SND_SOC_DAIFMT_I2S
109 | SND_SOC_DAIFMT_NB_NF
110 | SND_SOC_DAIFMT_CBM_CFM
);
114 sample_rate
= params_rate(params
);
119 static struct snd_soc_ops speyside_wm8962_ops
= {
120 .hw_params
= speyside_wm8962_hw_params
,
123 static struct snd_soc_dai_link speyside_wm8962_dai
[] = {
126 .stream_name
= "CPU",
127 .cpu_dai_name
= "samsung-i2s.0",
128 .codec_dai_name
= "wm8962",
129 .platform_name
= "samsung-audio",
130 .codec_name
= "wm8962.1-001a",
131 .ops
= &speyside_wm8962_ops
,
135 static const struct snd_kcontrol_new controls
[] = {
136 SOC_DAPM_PIN_SWITCH("Main Speaker"),
139 static struct snd_soc_dapm_widget widgets
[] = {
140 SND_SOC_DAPM_HP("Headphone", NULL
),
141 SND_SOC_DAPM_MIC("Headset Mic", NULL
),
143 SND_SOC_DAPM_MIC("DMIC", NULL
),
144 SND_SOC_DAPM_MIC("AMIC", NULL
),
146 SND_SOC_DAPM_SPK("Main Speaker", NULL
),
149 static struct snd_soc_dapm_route audio_paths
[] = {
150 { "Headphone", NULL
, "HPOUTL" },
151 { "Headphone", NULL
, "HPOUTR" },
153 { "Main Speaker", NULL
, "SPKOUTL" },
154 { "Main Speaker", NULL
, "SPKOUTR" },
156 { "Headset Mic", NULL
, "MICBIAS" },
157 { "IN4L", NULL
, "Headset Mic" },
158 { "IN4R", NULL
, "Headset Mic" },
160 { "AMIC", NULL
, "MICBIAS" },
161 { "IN1L", NULL
, "AMIC" },
162 { "IN1R", NULL
, "AMIC" },
164 { "DMIC", NULL
, "MICBIAS" },
165 { "DMICDAT", NULL
, "DMIC" },
168 static struct snd_soc_jack speyside_wm8962_headset
;
170 /* Headset jack detection DAPM pins */
171 static struct snd_soc_jack_pin speyside_wm8962_headset_pins
[] = {
173 .pin
= "Headset Mic",
174 .mask
= SND_JACK_MICROPHONE
,
178 .mask
= SND_JACK_MICROPHONE
,
182 static int speyside_wm8962_late_probe(struct snd_soc_card
*card
)
184 struct snd_soc_codec
*codec
= card
->rtd
[0].codec
;
185 struct snd_soc_dai
*codec_dai
= card
->rtd
[0].codec_dai
;
188 ret
= snd_soc_dai_set_sysclk(codec_dai
, WM8962_SYSCLK_MCLK
,
189 32768, SND_SOC_CLOCK_IN
);
193 ret
= snd_soc_jack_new(codec
, "Headset",
194 SND_JACK_HEADSET
| SND_JACK_BTN_0
,
195 &speyside_wm8962_headset
);
199 ret
= snd_soc_jack_add_pins(&speyside_wm8962_headset
,
200 ARRAY_SIZE(speyside_wm8962_headset_pins
),
201 speyside_wm8962_headset_pins
);
205 wm8962_mic_detect(codec
, &speyside_wm8962_headset
);
210 static struct snd_soc_card speyside_wm8962
= {
211 .name
= "Speyside WM8962",
212 .dai_link
= speyside_wm8962_dai
,
213 .num_links
= ARRAY_SIZE(speyside_wm8962_dai
),
215 .set_bias_level
= speyside_wm8962_set_bias_level
,
216 .set_bias_level_post
= speyside_wm8962_set_bias_level_post
,
218 .controls
= controls
,
219 .num_controls
= ARRAY_SIZE(controls
),
220 .dapm_widgets
= widgets
,
221 .num_dapm_widgets
= ARRAY_SIZE(widgets
),
222 .dapm_routes
= audio_paths
,
223 .num_dapm_routes
= ARRAY_SIZE(audio_paths
),
225 .late_probe
= speyside_wm8962_late_probe
,
228 static __devinit
int speyside_wm8962_probe(struct platform_device
*pdev
)
230 struct snd_soc_card
*card
= &speyside_wm8962
;
233 card
->dev
= &pdev
->dev
;
235 ret
= snd_soc_register_card(card
);
237 dev_err(&pdev
->dev
, "snd_soc_register_card() failed: %d\n",
245 static int __devexit
speyside_wm8962_remove(struct platform_device
*pdev
)
247 struct snd_soc_card
*card
= platform_get_drvdata(pdev
);
249 snd_soc_unregister_card(card
);
254 static struct platform_driver speyside_wm8962_driver
= {
256 .name
= "speyside-wm8962",
257 .owner
= THIS_MODULE
,
258 .pm
= &snd_soc_pm_ops
,
260 .probe
= speyside_wm8962_probe
,
261 .remove
= __devexit_p(speyside_wm8962_remove
),
264 static int __init
speyside_wm8962_audio_init(void)
266 return platform_driver_register(&speyside_wm8962_driver
);
268 module_init(speyside_wm8962_audio_init
);
270 static void __exit
speyside_wm8962_audio_exit(void)
272 platform_driver_unregister(&speyside_wm8962_driver
);
274 module_exit(speyside_wm8962_audio_exit
);
276 MODULE_DESCRIPTION("Speyside WM8962 audio support");
277 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
278 MODULE_LICENSE("GPL");
279 MODULE_ALIAS("platform:speyside-wm8962");