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->card->codec;
84 /* check the jack status at stream startup */
85 tosa_ext_control(codec);
89 static struct snd_soc_ops tosa_ops = {
90 .startup = tosa_startup,
93 static int tosa_get_jack(struct snd_kcontrol *kcontrol,
94 struct snd_ctl_elem_value *ucontrol)
96 ucontrol->value.integer.value[0] = tosa_jack_func;
100 static int tosa_set_jack(struct snd_kcontrol *kcontrol,
101 struct snd_ctl_elem_value *ucontrol)
103 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
105 if (tosa_jack_func == ucontrol->value.integer.value[0])
108 tosa_jack_func = ucontrol->value.integer.value[0];
109 tosa_ext_control(codec);
113 static int tosa_get_spk(struct snd_kcontrol *kcontrol,
114 struct snd_ctl_elem_value *ucontrol)
116 ucontrol->value.integer.value[0] = tosa_spk_func;
120 static int tosa_set_spk(struct snd_kcontrol *kcontrol,
121 struct snd_ctl_elem_value *ucontrol)
123 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
125 if (tosa_spk_func == ucontrol->value.integer.value[0])
128 tosa_spk_func = ucontrol->value.integer.value[0];
129 tosa_ext_control(codec);
133 /* tosa dapm event handlers */
134 static int tosa_hp_event(struct snd_soc_dapm_widget *w,
135 struct snd_kcontrol *k, int event)
137 gpio_set_value(TOSA_GPIO_L_MUTE, SND_SOC_DAPM_EVENT_ON(event) ? 1 :0);
141 /* tosa machine dapm widgets */
142 static const struct snd_soc_dapm_widget tosa_dapm_widgets[] = {
143 SND_SOC_DAPM_HP("Headphone Jack", tosa_hp_event),
144 SND_SOC_DAPM_HP("Headset Jack", NULL),
145 SND_SOC_DAPM_MIC("Mic (Internal)", NULL),
146 SND_SOC_DAPM_SPK("Speaker", NULL),
150 static const struct snd_soc_dapm_route audio_map[] = {
152 /* headphone connected to HPOUTL, HPOUTR */
153 {"Headphone Jack", NULL, "HPOUTL"},
154 {"Headphone Jack", NULL, "HPOUTR"},
156 /* ext speaker connected to LOUT2, ROUT2 */
157 {"Speaker", NULL, "LOUT2"},
158 {"Speaker", NULL, "ROUT2"},
160 /* internal mic is connected to mic1, mic2 differential - with bias */
161 {"MIC1", NULL, "Mic Bias"},
162 {"MIC2", NULL, "Mic Bias"},
163 {"Mic Bias", NULL, "Mic (Internal)"},
165 /* headset is connected to HPOUTR, and LINEINR with bias */
166 {"Headset Jack", NULL, "HPOUTR"},
167 {"LINEINR", NULL, "Mic Bias"},
168 {"Mic Bias", NULL, "Headset Jack"},
171 static const char *jack_function[] = {"Headphone", "Mic", "Line", "Headset",
173 static const char *spk_function[] = {"On", "Off"};
174 static const struct soc_enum tosa_enum[] = {
175 SOC_ENUM_SINGLE_EXT(5, jack_function),
176 SOC_ENUM_SINGLE_EXT(2, spk_function),
179 static const struct snd_kcontrol_new tosa_controls[] = {
180 SOC_ENUM_EXT("Jack Function", tosa_enum[0], tosa_get_jack,
182 SOC_ENUM_EXT("Speaker Function", tosa_enum[1], tosa_get_spk,
186 static int tosa_ac97_init(struct snd_soc_pcm_runtime *rtd)
188 struct snd_soc_codec *codec = rtd->codec;
191 snd_soc_dapm_nc_pin(codec, "OUT3");
192 snd_soc_dapm_nc_pin(codec, "MONOOUT");
194 /* add tosa specific controls */
195 err = snd_soc_add_controls(codec, tosa_controls,
196 ARRAY_SIZE(tosa_controls));
200 /* add tosa specific widgets */
201 snd_soc_dapm_new_controls(codec, tosa_dapm_widgets,
202 ARRAY_SIZE(tosa_dapm_widgets));
204 /* set up tosa specific audio path audio_map */
205 snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
207 snd_soc_dapm_sync(codec);
211 static struct snd_soc_dai_link tosa_dai[] = {
214 .stream_name = "AC97 HiFi",
215 .cpu_dai_name = "pxa-ac97.0",
216 .codec_dai_name = "wm9712-hifi",
217 .platform_name = "pxa-pcm-audio",
218 .codec_name = "wm9712-codec",
219 .init = tosa_ac97_init,
224 .stream_name = "AC97 Aux",
225 .cpu_dai_name = "pxa-ac97.1",
226 .codec_dai_name = "wm9712-aux",
227 .platform_name = "pxa-pcm-audio",
228 .codec_name = "wm9712-codec",
233 static int tosa_probe(struct platform_device *dev)
237 ret = gpio_request(TOSA_GPIO_L_MUTE, "Headphone Jack");
240 ret = gpio_direction_output(TOSA_GPIO_L_MUTE, 0);
242 gpio_free(TOSA_GPIO_L_MUTE);
247 static int tosa_remove(struct platform_device *dev)
249 gpio_free(TOSA_GPIO_L_MUTE);
253 static struct snd_soc_card tosa = {
255 .dai_link = tosa_dai,
256 .num_links = ARRAY_SIZE(tosa_dai),
258 .remove = tosa_remove,
261 static struct platform_device *tosa_snd_device;
263 static int __init tosa_init(void)
267 if (!machine_is_tosa())
270 tosa_snd_device = platform_device_alloc("soc-audio", -1);
271 if (!tosa_snd_device) {
276 platform_set_drvdata(tosa_snd_device, &tosa);
277 ret = platform_device_add(tosa_snd_device);
282 platform_device_put(tosa_snd_device);
288 static void __exit tosa_exit(void)
290 platform_device_unregister(tosa_snd_device);
293 module_init(tosa_init);
294 module_exit(tosa_exit);
296 /* Module information */
297 MODULE_AUTHOR("Richard Purdie");
298 MODULE_DESCRIPTION("ALSA SoC Tosa");
299 MODULE_LICENSE("GPL");