2 * tosa.c -- SoC audio for Tosa
4 * Copyright 2005 Wolfson Microelectronics PLC.
5 * Copyright 2005 Openedhand Ltd.
7 * Authors: Liam Girdwood <lrg@slimlogic.co.uk>
8 * Richard Purdie <richard@openedhand.com>
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
17 * 5 - Hookswitch (headset answer/hang up switch)
21 #include <linux/module.h>
22 #include <linux/moduleparam.h>
23 #include <linux/device.h>
24 #include <linux/gpio.h>
26 #include <sound/core.h>
27 #include <sound/pcm.h>
28 #include <sound/soc.h>
29 #include <sound/soc-dapm.h>
31 #include <asm/mach-types.h>
32 #include <mach/tosa.h>
33 #include <mach/audio.h>
35 #include "../codecs/wm9712.h"
36 #include "pxa2xx-ac97.h"
38 static struct snd_soc_card tosa
;
41 #define TOSA_MIC_INT 1
42 #define TOSA_HEADSET 2
45 #define TOSA_SPK_OFF 1
47 static int tosa_jack_func
;
48 static int tosa_spk_func
;
50 static void tosa_ext_control(struct snd_soc_codec
*codec
)
52 /* set up jack connection */
53 switch (tosa_jack_func
) {
55 snd_soc_dapm_disable_pin(codec
, "Mic (Internal)");
56 snd_soc_dapm_enable_pin(codec
, "Headphone Jack");
57 snd_soc_dapm_disable_pin(codec
, "Headset Jack");
60 snd_soc_dapm_enable_pin(codec
, "Mic (Internal)");
61 snd_soc_dapm_disable_pin(codec
, "Headphone Jack");
62 snd_soc_dapm_disable_pin(codec
, "Headset Jack");
65 snd_soc_dapm_disable_pin(codec
, "Mic (Internal)");
66 snd_soc_dapm_disable_pin(codec
, "Headphone Jack");
67 snd_soc_dapm_enable_pin(codec
, "Headset Jack");
71 if (tosa_spk_func
== TOSA_SPK_ON
)
72 snd_soc_dapm_enable_pin(codec
, "Speaker");
74 snd_soc_dapm_disable_pin(codec
, "Speaker");
76 snd_soc_dapm_sync(codec
);
79 static int tosa_startup(struct snd_pcm_substream
*substream
)
81 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
82 struct snd_soc_codec
*codec
= rtd
->codec
;
84 mutex_lock(&codec
->mutex
);
86 /* check the jack status at stream startup */
87 tosa_ext_control(codec
);
89 mutex_unlock(&codec
->mutex
);
94 static struct snd_soc_ops tosa_ops
= {
95 .startup
= tosa_startup
,
98 static int tosa_get_jack(struct snd_kcontrol
*kcontrol
,
99 struct snd_ctl_elem_value
*ucontrol
)
101 ucontrol
->value
.integer
.value
[0] = tosa_jack_func
;
105 static int tosa_set_jack(struct snd_kcontrol
*kcontrol
,
106 struct snd_ctl_elem_value
*ucontrol
)
108 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
110 if (tosa_jack_func
== ucontrol
->value
.integer
.value
[0])
113 tosa_jack_func
= ucontrol
->value
.integer
.value
[0];
114 tosa_ext_control(codec
);
118 static int tosa_get_spk(struct snd_kcontrol
*kcontrol
,
119 struct snd_ctl_elem_value
*ucontrol
)
121 ucontrol
->value
.integer
.value
[0] = tosa_spk_func
;
125 static int tosa_set_spk(struct snd_kcontrol
*kcontrol
,
126 struct snd_ctl_elem_value
*ucontrol
)
128 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
130 if (tosa_spk_func
== ucontrol
->value
.integer
.value
[0])
133 tosa_spk_func
= ucontrol
->value
.integer
.value
[0];
134 tosa_ext_control(codec
);
138 /* tosa dapm event handlers */
139 static int tosa_hp_event(struct snd_soc_dapm_widget
*w
,
140 struct snd_kcontrol
*k
, int event
)
142 gpio_set_value(TOSA_GPIO_L_MUTE
, SND_SOC_DAPM_EVENT_ON(event
) ? 1 :0);
146 /* tosa machine dapm widgets */
147 static const struct snd_soc_dapm_widget tosa_dapm_widgets
[] = {
148 SND_SOC_DAPM_HP("Headphone Jack", tosa_hp_event
),
149 SND_SOC_DAPM_HP("Headset Jack", NULL
),
150 SND_SOC_DAPM_MIC("Mic (Internal)", NULL
),
151 SND_SOC_DAPM_SPK("Speaker", NULL
),
155 static const struct snd_soc_dapm_route audio_map
[] = {
157 /* headphone connected to HPOUTL, HPOUTR */
158 {"Headphone Jack", NULL
, "HPOUTL"},
159 {"Headphone Jack", NULL
, "HPOUTR"},
161 /* ext speaker connected to LOUT2, ROUT2 */
162 {"Speaker", NULL
, "LOUT2"},
163 {"Speaker", NULL
, "ROUT2"},
165 /* internal mic is connected to mic1, mic2 differential - with bias */
166 {"MIC1", NULL
, "Mic Bias"},
167 {"MIC2", NULL
, "Mic Bias"},
168 {"Mic Bias", NULL
, "Mic (Internal)"},
170 /* headset is connected to HPOUTR, and LINEINR with bias */
171 {"Headset Jack", NULL
, "HPOUTR"},
172 {"LINEINR", NULL
, "Mic Bias"},
173 {"Mic Bias", NULL
, "Headset Jack"},
176 static const char *jack_function
[] = {"Headphone", "Mic", "Line", "Headset",
178 static const char *spk_function
[] = {"On", "Off"};
179 static const struct soc_enum tosa_enum
[] = {
180 SOC_ENUM_SINGLE_EXT(5, jack_function
),
181 SOC_ENUM_SINGLE_EXT(2, spk_function
),
184 static const struct snd_kcontrol_new tosa_controls
[] = {
185 SOC_ENUM_EXT("Jack Function", tosa_enum
[0], tosa_get_jack
,
187 SOC_ENUM_EXT("Speaker Function", tosa_enum
[1], tosa_get_spk
,
191 static int tosa_ac97_init(struct snd_soc_pcm_runtime
*rtd
)
193 struct snd_soc_codec
*codec
= rtd
->codec
;
196 snd_soc_dapm_nc_pin(codec
, "OUT3");
197 snd_soc_dapm_nc_pin(codec
, "MONOOUT");
199 /* add tosa specific controls */
200 err
= snd_soc_add_controls(codec
, tosa_controls
,
201 ARRAY_SIZE(tosa_controls
));
205 /* add tosa specific widgets */
206 snd_soc_dapm_new_controls(codec
, tosa_dapm_widgets
,
207 ARRAY_SIZE(tosa_dapm_widgets
));
209 /* set up tosa specific audio path audio_map */
210 snd_soc_dapm_add_routes(codec
, audio_map
, ARRAY_SIZE(audio_map
));
212 snd_soc_dapm_sync(codec
);
216 static struct snd_soc_dai_link tosa_dai
[] = {
219 .stream_name
= "AC97 HiFi",
220 .cpu_dai_name
= "pxa2xx-ac97",
221 .codec_dai_name
= "wm9712-hifi",
222 .platform_name
= "pxa-pcm-audio",
223 .codec_name
= "wm9712-codec",
224 .init
= tosa_ac97_init
,
229 .stream_name
= "AC97 Aux",
230 .cpu_dai_name
= "pxa2xx-ac97-aux",
231 .codec_dai_name
= "wm9712-aux",
232 .platform_name
= "pxa-pcm-audio",
233 .codec_name
= "wm9712-codec",
238 static int tosa_probe(struct platform_device
*dev
)
242 ret
= gpio_request(TOSA_GPIO_L_MUTE
, "Headphone Jack");
245 ret
= gpio_direction_output(TOSA_GPIO_L_MUTE
, 0);
247 gpio_free(TOSA_GPIO_L_MUTE
);
252 static int tosa_remove(struct platform_device
*dev
)
254 gpio_free(TOSA_GPIO_L_MUTE
);
258 static struct snd_soc_card tosa
= {
260 .dai_link
= tosa_dai
,
261 .num_links
= ARRAY_SIZE(tosa_dai
),
263 .remove
= tosa_remove
,
266 static struct platform_device
*tosa_snd_device
;
268 static int __init
tosa_init(void)
272 if (!machine_is_tosa())
275 tosa_snd_device
= platform_device_alloc("soc-audio", -1);
276 if (!tosa_snd_device
) {
281 platform_set_drvdata(tosa_snd_device
, &tosa
);
282 ret
= platform_device_add(tosa_snd_device
);
287 platform_device_put(tosa_snd_device
);
293 static void __exit
tosa_exit(void)
295 platform_device_unregister(tosa_snd_device
);
298 module_init(tosa_init
);
299 module_exit(tosa_exit
);
301 /* Module information */
302 MODULE_AUTHOR("Richard Purdie");
303 MODULE_DESCRIPTION("ALSA SoC Tosa");
304 MODULE_LICENSE("GPL");