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>
30 #include <asm/mach-types.h>
31 #include <mach/tosa.h>
32 #include <mach/audio.h>
34 #include "../codecs/wm9712.h"
35 #include "pxa2xx-ac97.h"
37 static struct snd_soc_card tosa;
40 #define TOSA_MIC_INT 1
41 #define TOSA_HEADSET 2
44 #define TOSA_SPK_OFF 1
46 static int tosa_jack_func;
47 static int tosa_spk_func;
49 static void tosa_ext_control(struct snd_soc_codec *codec)
51 struct snd_soc_dapm_context *dapm = &codec->dapm;
53 /* set up jack connection */
54 switch (tosa_jack_func) {
56 snd_soc_dapm_disable_pin(dapm, "Mic (Internal)");
57 snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
58 snd_soc_dapm_disable_pin(dapm, "Headset Jack");
61 snd_soc_dapm_enable_pin(dapm, "Mic (Internal)");
62 snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
63 snd_soc_dapm_disable_pin(dapm, "Headset Jack");
66 snd_soc_dapm_disable_pin(dapm, "Mic (Internal)");
67 snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
68 snd_soc_dapm_enable_pin(dapm, "Headset Jack");
72 if (tosa_spk_func == TOSA_SPK_ON)
73 snd_soc_dapm_enable_pin(dapm, "Speaker");
75 snd_soc_dapm_disable_pin(dapm, "Speaker");
77 snd_soc_dapm_sync(dapm);
80 static int tosa_startup(struct snd_pcm_substream *substream)
82 struct snd_soc_pcm_runtime *rtd = substream->private_data;
83 struct snd_soc_codec *codec = rtd->codec;
85 mutex_lock(&codec->mutex);
87 /* check the jack status at stream startup */
88 tosa_ext_control(codec);
90 mutex_unlock(&codec->mutex);
95 static struct snd_soc_ops tosa_ops = {
96 .startup = tosa_startup,
99 static int tosa_get_jack(struct snd_kcontrol *kcontrol,
100 struct snd_ctl_elem_value *ucontrol)
102 ucontrol->value.integer.value[0] = tosa_jack_func;
106 static int tosa_set_jack(struct snd_kcontrol *kcontrol,
107 struct snd_ctl_elem_value *ucontrol)
109 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
111 if (tosa_jack_func == ucontrol->value.integer.value[0])
114 tosa_jack_func = ucontrol->value.integer.value[0];
115 tosa_ext_control(codec);
119 static int tosa_get_spk(struct snd_kcontrol *kcontrol,
120 struct snd_ctl_elem_value *ucontrol)
122 ucontrol->value.integer.value[0] = tosa_spk_func;
126 static int tosa_set_spk(struct snd_kcontrol *kcontrol,
127 struct snd_ctl_elem_value *ucontrol)
129 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
131 if (tosa_spk_func == ucontrol->value.integer.value[0])
134 tosa_spk_func = ucontrol->value.integer.value[0];
135 tosa_ext_control(codec);
139 /* tosa dapm event handlers */
140 static int tosa_hp_event(struct snd_soc_dapm_widget *w,
141 struct snd_kcontrol *k, int event)
143 gpio_set_value(TOSA_GPIO_L_MUTE, SND_SOC_DAPM_EVENT_ON(event) ? 1 :0);
147 /* tosa machine dapm widgets */
148 static const struct snd_soc_dapm_widget tosa_dapm_widgets[] = {
149 SND_SOC_DAPM_HP("Headphone Jack", tosa_hp_event),
150 SND_SOC_DAPM_HP("Headset Jack", NULL),
151 SND_SOC_DAPM_MIC("Mic (Internal)", NULL),
152 SND_SOC_DAPM_SPK("Speaker", NULL),
156 static const struct snd_soc_dapm_route audio_map[] = {
158 /* headphone connected to HPOUTL, HPOUTR */
159 {"Headphone Jack", NULL, "HPOUTL"},
160 {"Headphone Jack", NULL, "HPOUTR"},
162 /* ext speaker connected to LOUT2, ROUT2 */
163 {"Speaker", NULL, "LOUT2"},
164 {"Speaker", NULL, "ROUT2"},
166 /* internal mic is connected to mic1, mic2 differential - with bias */
167 {"MIC1", NULL, "Mic Bias"},
168 {"MIC2", NULL, "Mic Bias"},
169 {"Mic Bias", NULL, "Mic (Internal)"},
171 /* headset is connected to HPOUTR, and LINEINR with bias */
172 {"Headset Jack", NULL, "HPOUTR"},
173 {"LINEINR", NULL, "Mic Bias"},
174 {"Mic Bias", NULL, "Headset Jack"},
177 static const char *jack_function[] = {"Headphone", "Mic", "Line", "Headset",
179 static const char *spk_function[] = {"On", "Off"};
180 static const struct soc_enum tosa_enum[] = {
181 SOC_ENUM_SINGLE_EXT(5, jack_function),
182 SOC_ENUM_SINGLE_EXT(2, spk_function),
185 static const struct snd_kcontrol_new tosa_controls[] = {
186 SOC_ENUM_EXT("Jack Function", tosa_enum[0], tosa_get_jack,
188 SOC_ENUM_EXT("Speaker Function", tosa_enum[1], tosa_get_spk,
192 static int tosa_ac97_init(struct snd_soc_pcm_runtime *rtd)
194 struct snd_soc_codec *codec = rtd->codec;
195 struct snd_soc_dapm_context *dapm = &codec->dapm;
198 snd_soc_dapm_nc_pin(dapm, "OUT3");
199 snd_soc_dapm_nc_pin(dapm, "MONOOUT");
201 /* add tosa specific controls */
202 err = snd_soc_add_controls(codec, tosa_controls,
203 ARRAY_SIZE(tosa_controls));
207 /* add tosa specific widgets */
208 snd_soc_dapm_new_controls(dapm, tosa_dapm_widgets,
209 ARRAY_SIZE(tosa_dapm_widgets));
211 /* set up tosa specific audio path audio_map */
212 snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
214 snd_soc_dapm_sync(dapm);
218 static struct snd_soc_dai_link tosa_dai[] = {
221 .stream_name = "AC97 HiFi",
222 .cpu_dai_name = "pxa-ac97.0",
223 .codec_dai_name = "wm9712-hifi",
224 .platform_name = "pxa-pcm-audio",
225 .codec_name = "wm9712-codec",
226 .init = tosa_ac97_init,
231 .stream_name = "AC97 Aux",
232 .cpu_dai_name = "pxa-ac97.1",
233 .codec_dai_name = "wm9712-aux",
234 .platform_name = "pxa-pcm-audio",
235 .codec_name = "wm9712-codec",
240 static int tosa_probe(struct snd_soc_card *card)
244 ret = gpio_request(TOSA_GPIO_L_MUTE, "Headphone Jack");
247 ret = gpio_direction_output(TOSA_GPIO_L_MUTE, 0);
249 gpio_free(TOSA_GPIO_L_MUTE);
254 static int tosa_remove(struct snd_soc_card *card)
256 gpio_free(TOSA_GPIO_L_MUTE);
260 static struct snd_soc_card tosa = {
262 .dai_link = tosa_dai,
263 .num_links = ARRAY_SIZE(tosa_dai),
265 .remove = tosa_remove,
268 static struct platform_device *tosa_snd_device;
270 static int __init tosa_init(void)
274 if (!machine_is_tosa())
277 tosa_snd_device = platform_device_alloc("soc-audio", -1);
278 if (!tosa_snd_device) {
283 platform_set_drvdata(tosa_snd_device, &tosa);
284 ret = platform_device_add(tosa_snd_device);
289 platform_device_put(tosa_snd_device);
295 static void __exit tosa_exit(void)
297 platform_device_unregister(tosa_snd_device);
300 module_init(tosa_init);
301 module_exit(tosa_exit);
303 /* Module information */
304 MODULE_AUTHOR("Richard Purdie");
305 MODULE_DESCRIPTION("ALSA SoC Tosa");
306 MODULE_LICENSE("GPL");