2 * e740-wm9705.c -- SoC audio for e740
4 * Copyright 2007 (c) Ian Molton <spyro@f2s.com>
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; version 2 ONLY.
12 #include <linux/module.h>
13 #include <linux/moduleparam.h>
14 #include <linux/gpio.h>
16 #include <sound/core.h>
17 #include <sound/pcm.h>
18 #include <sound/soc.h>
20 #include <mach/audio.h>
21 #include <mach/eseries-gpio.h>
23 #include <asm/mach-types.h>
25 #include "../codecs/wm9705.h"
26 #include "pxa2xx-ac97.h"
29 #define E740_AUDIO_OUT 1
30 #define E740_AUDIO_IN 2
32 static int e740_audio_power
;
34 static void e740_sync_audio_power(int status
)
36 gpio_set_value(GPIO_E740_WM9705_nAVDD2
, !status
);
37 gpio_set_value(GPIO_E740_AMP_ON
, (status
& E740_AUDIO_OUT
) ? 1 : 0);
38 gpio_set_value(GPIO_E740_MIC_ON
, (status
& E740_AUDIO_IN
) ? 1 : 0);
41 static int e740_mic_amp_event(struct snd_soc_dapm_widget
*w
,
42 struct snd_kcontrol
*kcontrol
, int event
)
44 if (event
& SND_SOC_DAPM_PRE_PMU
)
45 e740_audio_power
|= E740_AUDIO_IN
;
46 else if (event
& SND_SOC_DAPM_POST_PMD
)
47 e740_audio_power
&= ~E740_AUDIO_IN
;
49 e740_sync_audio_power(e740_audio_power
);
54 static int e740_output_amp_event(struct snd_soc_dapm_widget
*w
,
55 struct snd_kcontrol
*kcontrol
, int event
)
57 if (event
& SND_SOC_DAPM_PRE_PMU
)
58 e740_audio_power
|= E740_AUDIO_OUT
;
59 else if (event
& SND_SOC_DAPM_POST_PMD
)
60 e740_audio_power
&= ~E740_AUDIO_OUT
;
62 e740_sync_audio_power(e740_audio_power
);
67 static const struct snd_soc_dapm_widget e740_dapm_widgets
[] = {
68 SND_SOC_DAPM_HP("Headphone Jack", NULL
),
69 SND_SOC_DAPM_SPK("Speaker", NULL
),
70 SND_SOC_DAPM_MIC("Mic (Internal)", NULL
),
71 SND_SOC_DAPM_PGA_E("Output Amp", SND_SOC_NOPM
, 0, 0, NULL
, 0,
72 e740_output_amp_event
, SND_SOC_DAPM_PRE_PMU
|
73 SND_SOC_DAPM_POST_PMD
),
74 SND_SOC_DAPM_PGA_E("Mic Amp", SND_SOC_NOPM
, 0, 0, NULL
, 0,
75 e740_mic_amp_event
, SND_SOC_DAPM_PRE_PMU
|
76 SND_SOC_DAPM_POST_PMD
),
79 static const struct snd_soc_dapm_route audio_map
[] = {
80 {"Output Amp", NULL
, "LOUT"},
81 {"Output Amp", NULL
, "ROUT"},
82 {"Output Amp", NULL
, "MONOOUT"},
84 {"Speaker", NULL
, "Output Amp"},
85 {"Headphone Jack", NULL
, "Output Amp"},
87 {"MIC1", NULL
, "Mic Amp"},
88 {"Mic Amp", NULL
, "Mic (Internal)"},
91 static int e740_ac97_init(struct snd_soc_pcm_runtime
*rtd
)
93 struct snd_soc_codec
*codec
= rtd
->codec
;
94 struct snd_soc_dapm_context
*dapm
= &codec
->dapm
;
96 snd_soc_dapm_nc_pin(dapm
, "HPOUTL");
97 snd_soc_dapm_nc_pin(dapm
, "HPOUTR");
98 snd_soc_dapm_nc_pin(dapm
, "PHONE");
99 snd_soc_dapm_nc_pin(dapm
, "LINEINL");
100 snd_soc_dapm_nc_pin(dapm
, "LINEINR");
101 snd_soc_dapm_nc_pin(dapm
, "CDINL");
102 snd_soc_dapm_nc_pin(dapm
, "CDINR");
103 snd_soc_dapm_nc_pin(dapm
, "PCBEEP");
104 snd_soc_dapm_nc_pin(dapm
, "MIC2");
106 snd_soc_dapm_new_controls(dapm
, e740_dapm_widgets
,
107 ARRAY_SIZE(e740_dapm_widgets
));
109 snd_soc_dapm_add_routes(dapm
, audio_map
, ARRAY_SIZE(audio_map
));
111 snd_soc_dapm_sync(dapm
);
116 static struct snd_soc_dai_link e740_dai
[] = {
119 .stream_name
= "AC97 HiFi",
120 .cpu_dai_name
= "pxa-ac97.0",
121 .codec_dai_name
= "wm9705-hifi",
122 .platform_name
= "pxa-pcm-audio",
123 .codec_name
= "wm9705-codec",
124 .init
= e740_ac97_init
,
128 .stream_name
= "AC97 Aux",
129 .cpu_dai_name
= "pxa-ac97.1",
130 .codec_dai_name
= "wm9705-aux",
131 .platform_name
= "pxa-pcm-audio",
132 .codec_name
= "wm9705-codec",
136 static struct snd_soc_card e740
= {
137 .name
= "Toshiba e740",
138 .dai_link
= e740_dai
,
139 .num_links
= ARRAY_SIZE(e740_dai
),
142 static struct platform_device
*e740_snd_device
;
144 static int __init
e740_init(void)
148 if (!machine_is_e740())
151 ret
= gpio_request(GPIO_E740_MIC_ON
, "Mic amp");
155 ret
= gpio_request(GPIO_E740_AMP_ON
, "Output amp");
157 goto free_mic_amp_gpio
;
159 ret
= gpio_request(GPIO_E740_WM9705_nAVDD2
, "Audio power");
161 goto free_op_amp_gpio
;
164 ret
= gpio_direction_output(GPIO_E740_MIC_ON
, 0);
167 ret
= gpio_direction_output(GPIO_E740_AMP_ON
, 0);
170 ret
= gpio_direction_output(GPIO_E740_WM9705_nAVDD2
, 1);
174 e740_snd_device
= platform_device_alloc("soc-audio", -1);
175 if (!e740_snd_device
) {
180 platform_set_drvdata(e740_snd_device
, &e740
);
181 ret
= platform_device_add(e740_snd_device
);
186 /* Fail gracefully */
187 platform_device_put(e740_snd_device
);
189 gpio_free(GPIO_E740_WM9705_nAVDD2
);
191 gpio_free(GPIO_E740_AMP_ON
);
193 gpio_free(GPIO_E740_MIC_ON
);
198 static void __exit
e740_exit(void)
200 platform_device_unregister(e740_snd_device
);
201 gpio_free(GPIO_E740_WM9705_nAVDD2
);
202 gpio_free(GPIO_E740_AMP_ON
);
203 gpio_free(GPIO_E740_MIC_ON
);
206 module_init(e740_init
);
207 module_exit(e740_exit
);
209 /* Module information */
210 MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
211 MODULE_DESCRIPTION("ALSA SoC driver for e740");
212 MODULE_LICENSE("GPL v2");