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 struct snd_soc_dapm_context
*dapm
= &codec
->dapm
;
54 /* set up jack connection */
55 switch (tosa_jack_func
) {
57 snd_soc_dapm_disable_pin(dapm
, "Mic (Internal)");
58 snd_soc_dapm_enable_pin(dapm
, "Headphone Jack");
59 snd_soc_dapm_disable_pin(dapm
, "Headset Jack");
62 snd_soc_dapm_enable_pin(dapm
, "Mic (Internal)");
63 snd_soc_dapm_disable_pin(dapm
, "Headphone Jack");
64 snd_soc_dapm_disable_pin(dapm
, "Headset Jack");
67 snd_soc_dapm_disable_pin(dapm
, "Mic (Internal)");
68 snd_soc_dapm_disable_pin(dapm
, "Headphone Jack");
69 snd_soc_dapm_enable_pin(dapm
, "Headset Jack");
73 if (tosa_spk_func
== TOSA_SPK_ON
)
74 snd_soc_dapm_enable_pin(dapm
, "Speaker");
76 snd_soc_dapm_disable_pin(dapm
, "Speaker");
78 snd_soc_dapm_sync(dapm
);
81 static int tosa_startup(struct snd_pcm_substream
*substream
)
83 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
84 struct snd_soc_codec
*codec
= rtd
->codec
;
86 /* check the jack status at stream startup */
87 tosa_ext_control(codec
);
91 static struct snd_soc_ops tosa_ops
= {
92 .startup
= tosa_startup
,
95 static int tosa_get_jack(struct snd_kcontrol
*kcontrol
,
96 struct snd_ctl_elem_value
*ucontrol
)
98 ucontrol
->value
.integer
.value
[0] = tosa_jack_func
;
102 static int tosa_set_jack(struct snd_kcontrol
*kcontrol
,
103 struct snd_ctl_elem_value
*ucontrol
)
105 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
107 if (tosa_jack_func
== ucontrol
->value
.integer
.value
[0])
110 tosa_jack_func
= ucontrol
->value
.integer
.value
[0];
111 tosa_ext_control(codec
);
115 static int tosa_get_spk(struct snd_kcontrol
*kcontrol
,
116 struct snd_ctl_elem_value
*ucontrol
)
118 ucontrol
->value
.integer
.value
[0] = tosa_spk_func
;
122 static int tosa_set_spk(struct snd_kcontrol
*kcontrol
,
123 struct snd_ctl_elem_value
*ucontrol
)
125 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
127 if (tosa_spk_func
== ucontrol
->value
.integer
.value
[0])
130 tosa_spk_func
= ucontrol
->value
.integer
.value
[0];
131 tosa_ext_control(codec
);
135 /* tosa dapm event handlers */
136 static int tosa_hp_event(struct snd_soc_dapm_widget
*w
,
137 struct snd_kcontrol
*k
, int event
)
139 gpio_set_value(TOSA_GPIO_L_MUTE
, SND_SOC_DAPM_EVENT_ON(event
) ? 1 :0);
143 /* tosa machine dapm widgets */
144 static const struct snd_soc_dapm_widget tosa_dapm_widgets
[] = {
145 SND_SOC_DAPM_HP("Headphone Jack", tosa_hp_event
),
146 SND_SOC_DAPM_HP("Headset Jack", NULL
),
147 SND_SOC_DAPM_MIC("Mic (Internal)", NULL
),
148 SND_SOC_DAPM_SPK("Speaker", NULL
),
152 static const struct snd_soc_dapm_route audio_map
[] = {
154 /* headphone connected to HPOUTL, HPOUTR */
155 {"Headphone Jack", NULL
, "HPOUTL"},
156 {"Headphone Jack", NULL
, "HPOUTR"},
158 /* ext speaker connected to LOUT2, ROUT2 */
159 {"Speaker", NULL
, "LOUT2"},
160 {"Speaker", NULL
, "ROUT2"},
162 /* internal mic is connected to mic1, mic2 differential - with bias */
163 {"MIC1", NULL
, "Mic Bias"},
164 {"MIC2", NULL
, "Mic Bias"},
165 {"Mic Bias", NULL
, "Mic (Internal)"},
167 /* headset is connected to HPOUTR, and LINEINR with bias */
168 {"Headset Jack", NULL
, "HPOUTR"},
169 {"LINEINR", NULL
, "Mic Bias"},
170 {"Mic Bias", NULL
, "Headset Jack"},
173 static const char *jack_function
[] = {"Headphone", "Mic", "Line", "Headset",
175 static const char *spk_function
[] = {"On", "Off"};
176 static const struct soc_enum tosa_enum
[] = {
177 SOC_ENUM_SINGLE_EXT(5, jack_function
),
178 SOC_ENUM_SINGLE_EXT(2, spk_function
),
181 static const struct snd_kcontrol_new tosa_controls
[] = {
182 SOC_ENUM_EXT("Jack Function", tosa_enum
[0], tosa_get_jack
,
184 SOC_ENUM_EXT("Speaker Function", tosa_enum
[1], tosa_get_spk
,
188 static int tosa_ac97_init(struct snd_soc_pcm_runtime
*rtd
)
190 struct snd_soc_codec
*codec
= rtd
->codec
;
191 struct snd_soc_dapm_context
*dapm
= &codec
->dapm
;
194 snd_soc_dapm_nc_pin(dapm
, "OUT3");
195 snd_soc_dapm_nc_pin(dapm
, "MONOOUT");
197 /* add tosa specific controls */
198 err
= snd_soc_add_controls(codec
, tosa_controls
,
199 ARRAY_SIZE(tosa_controls
));
203 /* add tosa specific widgets */
204 snd_soc_dapm_new_controls(dapm
, tosa_dapm_widgets
,
205 ARRAY_SIZE(tosa_dapm_widgets
));
207 /* set up tosa specific audio path audio_map */
208 snd_soc_dapm_add_routes(dapm
, audio_map
, ARRAY_SIZE(audio_map
));
210 snd_soc_dapm_sync(dapm
);
214 static struct snd_soc_dai_link tosa_dai
[] = {
217 .stream_name
= "AC97 HiFi",
218 .cpu_dai_name
= "pxa-ac97.0",
219 .codec_dai_name
= "wm9712-hifi",
220 .platform_name
= "pxa-pcm-audio",
221 .codec_name
= "wm9712-codec",
222 .init
= tosa_ac97_init
,
227 .stream_name
= "AC97 Aux",
228 .cpu_dai_name
= "pxa-ac97.1",
229 .codec_dai_name
= "wm9712-aux",
230 .platform_name
= "pxa-pcm-audio",
231 .codec_name
= "wm9712-codec",
236 static int tosa_probe(struct platform_device
*dev
)
240 ret
= gpio_request(TOSA_GPIO_L_MUTE
, "Headphone Jack");
243 ret
= gpio_direction_output(TOSA_GPIO_L_MUTE
, 0);
245 gpio_free(TOSA_GPIO_L_MUTE
);
250 static int tosa_remove(struct platform_device
*dev
)
252 gpio_free(TOSA_GPIO_L_MUTE
);
256 static struct snd_soc_card tosa
= {
258 .dai_link
= tosa_dai
,
259 .num_links
= ARRAY_SIZE(tosa_dai
),
261 .remove
= tosa_remove
,
264 static struct platform_device
*tosa_snd_device
;
266 static int __init
tosa_init(void)
270 if (!machine_is_tosa())
273 tosa_snd_device
= platform_device_alloc("soc-audio", -1);
274 if (!tosa_snd_device
) {
279 platform_set_drvdata(tosa_snd_device
, &tosa
);
280 ret
= platform_device_add(tosa_snd_device
);
285 platform_device_put(tosa_snd_device
);
291 static void __exit
tosa_exit(void)
293 platform_device_unregister(tosa_snd_device
);
296 module_init(tosa_init
);
297 module_exit(tosa_exit
);
299 /* Module information */
300 MODULE_AUTHOR("Richard Purdie");
301 MODULE_DESCRIPTION("ALSA SoC Tosa");
302 MODULE_LICENSE("GPL");