2 * zylonite.c -- SoC audio for Zylonite
4 * Copyright 2008 Wolfson Microelectronics PLC.
5 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation; either version 2 of the
10 * License, or (at your option) any later version.
14 #include <linux/module.h>
15 #include <linux/moduleparam.h>
16 #include <linux/device.h>
17 #include <linux/i2c.h>
18 #include <sound/core.h>
19 #include <sound/pcm.h>
20 #include <sound/pcm_params.h>
21 #include <sound/soc.h>
22 #include <sound/soc-dapm.h>
24 #include "../codecs/wm9713.h"
25 #include "pxa2xx-pcm.h"
26 #include "pxa2xx-ac97.h"
29 static struct snd_soc_card zylonite
;
31 static const struct snd_soc_dapm_widget zylonite_dapm_widgets
[] = {
32 SND_SOC_DAPM_HP("Headphone", NULL
),
33 SND_SOC_DAPM_MIC("Headset Microphone", NULL
),
34 SND_SOC_DAPM_MIC("Handset Microphone", NULL
),
35 SND_SOC_DAPM_SPK("Multiactor", NULL
),
36 SND_SOC_DAPM_SPK("Headset Earpiece", NULL
),
39 /* Currently supported audio map */
40 static const struct snd_soc_dapm_route audio_map
[] = {
42 /* Headphone output connected to HPL/HPR */
43 { "Headphone", NULL
, "HPL" },
44 { "Headphone", NULL
, "HPR" },
46 /* On-board earpiece */
47 { "Headset Earpiece", NULL
, "OUT3" },
50 { "MIC2A", NULL
, "Mic Bias" },
51 { "Mic Bias", NULL
, "Headset Microphone" },
54 { "MIC1", NULL
, "Mic Bias" },
55 { "Mic Bias", NULL
, "Handset Microphone" },
57 /* Multiactor differentially connected over SPKL/SPKR */
58 { "Multiactor", NULL
, "SPKL" },
59 { "Multiactor", NULL
, "SPKR" },
62 static int zylonite_wm9713_init(struct snd_soc_codec
*codec
)
64 /* Currently we only support use of the AC97 clock here. If
65 * CLK_POUT is selected by SW15 then the clock API will need
66 * to be used to request and enable it here.
69 snd_soc_dapm_new_controls(codec
, zylonite_dapm_widgets
,
70 ARRAY_SIZE(zylonite_dapm_widgets
));
72 snd_soc_dapm_add_routes(codec
, audio_map
, ARRAY_SIZE(audio_map
));
74 /* Static setup for now */
75 snd_soc_dapm_enable_pin(codec
, "Headphone");
76 snd_soc_dapm_enable_pin(codec
, "Headset Earpiece");
78 snd_soc_dapm_sync(codec
);
82 static int zylonite_voice_hw_params(struct snd_pcm_substream
*substream
,
83 struct snd_pcm_hw_params
*params
)
85 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
86 struct snd_soc_dai
*codec_dai
= rtd
->dai
->codec_dai
;
87 struct snd_soc_dai
*cpu_dai
= rtd
->dai
->cpu_dai
;
88 unsigned int pll_out
= 0;
89 unsigned int acds
= 0;
90 unsigned int wm9713_div
= 0;
93 switch (params_rate(params
)) {
110 ret
= snd_soc_dai_set_fmt(codec_dai
, SND_SOC_DAIFMT_I2S
|
111 SND_SOC_DAIFMT_NB_NF
| SND_SOC_DAIFMT_CBS_CFS
);
115 ret
= snd_soc_dai_set_fmt(cpu_dai
, SND_SOC_DAIFMT_I2S
|
116 SND_SOC_DAIFMT_NB_NF
| SND_SOC_DAIFMT_CBS_CFS
);
120 ret
= snd_soc_dai_set_tdm_slot(cpu_dai
,
121 params_channels(params
),
122 params_channels(params
));
126 ret
= snd_soc_dai_set_pll(cpu_dai
, 0, 0, pll_out
);
130 ret
= snd_soc_dai_set_clkdiv(cpu_dai
, PXA_SSP_AUDIO_DIV_ACDS
, acds
);
134 ret
= snd_soc_dai_set_sysclk(cpu_dai
, PXA_SSP_CLK_AUDIO
, 0, 1);
138 /* Note that if the PLL is in use the WM9713_PCMCLK_PLL_DIV needs
141 ret
= snd_soc_dai_set_clkdiv(codec_dai
, WM9713_PCMCLK_DIV
,
142 WM9713_PCMDIV(wm9713_div
));
149 static struct snd_soc_ops zylonite_voice_ops
= {
150 .hw_params
= zylonite_voice_hw_params
,
153 static struct snd_soc_dai_link zylonite_dai
[] = {
156 .stream_name
= "AC97 HiFi",
157 .cpu_dai
= &pxa_ac97_dai
[PXA2XX_DAI_AC97_HIFI
],
158 .codec_dai
= &wm9713_dai
[WM9713_DAI_AC97_HIFI
],
159 .init
= zylonite_wm9713_init
,
163 .stream_name
= "AC97 Aux",
164 .cpu_dai
= &pxa_ac97_dai
[PXA2XX_DAI_AC97_AUX
],
165 .codec_dai
= &wm9713_dai
[WM9713_DAI_AC97_AUX
],
168 .name
= "WM9713 Voice",
169 .stream_name
= "WM9713 Voice",
170 .cpu_dai
= &pxa_ssp_dai
[PXA_DAI_SSP3
],
171 .codec_dai
= &wm9713_dai
[WM9713_DAI_PCM_VOICE
],
172 .ops
= &zylonite_voice_ops
,
176 static struct snd_soc_card zylonite
= {
178 .platform
= &pxa2xx_soc_platform
,
179 .dai_link
= zylonite_dai
,
180 .num_links
= ARRAY_SIZE(zylonite_dai
),
183 static struct snd_soc_device zylonite_snd_ac97_devdata
= {
185 .codec_dev
= &soc_codec_dev_wm9713
,
188 static struct platform_device
*zylonite_snd_ac97_device
;
190 static int __init
zylonite_init(void)
194 zylonite_snd_ac97_device
= platform_device_alloc("soc-audio", -1);
195 if (!zylonite_snd_ac97_device
)
198 platform_set_drvdata(zylonite_snd_ac97_device
,
199 &zylonite_snd_ac97_devdata
);
200 zylonite_snd_ac97_devdata
.dev
= &zylonite_snd_ac97_device
->dev
;
202 ret
= platform_device_add(zylonite_snd_ac97_device
);
204 platform_device_put(zylonite_snd_ac97_device
);
209 static void __exit
zylonite_exit(void)
211 platform_device_unregister(zylonite_snd_ac97_device
);
214 module_init(zylonite_init
);
215 module_exit(zylonite_exit
);
217 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
218 MODULE_DESCRIPTION("ALSA SoC WM9713 Zylonite");
219 MODULE_LICENSE("GPL");