2 * tosa.c -- SoC audio for Tosa
4 * Copyright 2005 Wolfson Microelectronics PLC.
5 * Copyright 2005 Openedhand Ltd.
7 * Authors: Liam Girdwood <liam.girdwood@wolfsonmicro.com>
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/pxa-regs.h>
34 #include <mach/hardware.h>
35 #include <mach/audio.h>
37 #include "../codecs/wm9712.h"
38 #include "pxa2xx-pcm.h"
39 #include "pxa2xx-ac97.h"
41 static struct snd_soc_machine tosa;
44 #define TOSA_MIC_INT 1
45 #define TOSA_HEADSET 2
48 #define TOSA_SPK_OFF 1
50 static int tosa_jack_func;
51 static int tosa_spk_func;
53 static void tosa_ext_control(struct snd_soc_codec *codec)
55 /* set up jack connection */
56 switch (tosa_jack_func) {
58 snd_soc_dapm_disable_pin(codec, "Mic (Internal)");
59 snd_soc_dapm_enable_pin(codec, "Headphone Jack");
60 snd_soc_dapm_disable_pin(codec, "Headset Jack");
63 snd_soc_dapm_enable_pin(codec, "Mic (Internal)");
64 snd_soc_dapm_disable_pin(codec, "Headphone Jack");
65 snd_soc_dapm_disable_pin(codec, "Headset Jack");
68 snd_soc_dapm_disable_pin(codec, "Mic (Internal)");
69 snd_soc_dapm_disable_pin(codec, "Headphone Jack");
70 snd_soc_dapm_enable_pin(codec, "Headset Jack");
74 if (tosa_spk_func == TOSA_SPK_ON)
75 snd_soc_dapm_enable_pin(codec, "Speaker");
77 snd_soc_dapm_disable_pin(codec, "Speaker");
79 snd_soc_dapm_sync(codec);
82 static int tosa_startup(struct snd_pcm_substream *substream)
84 struct snd_soc_pcm_runtime *rtd = substream->private_data;
85 struct snd_soc_codec *codec = rtd->socdev->codec;
87 /* check the jack status at stream startup */
88 tosa_ext_control(codec);
92 static struct snd_soc_ops tosa_ops = {
93 .startup = tosa_startup,
96 static int tosa_get_jack(struct snd_kcontrol *kcontrol,
97 struct snd_ctl_elem_value *ucontrol)
99 ucontrol->value.integer.value[0] = tosa_jack_func;
103 static int tosa_set_jack(struct snd_kcontrol *kcontrol,
104 struct snd_ctl_elem_value *ucontrol)
106 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
108 if (tosa_jack_func == ucontrol->value.integer.value[0])
111 tosa_jack_func = ucontrol->value.integer.value[0];
112 tosa_ext_control(codec);
116 static int tosa_get_spk(struct snd_kcontrol *kcontrol,
117 struct snd_ctl_elem_value *ucontrol)
119 ucontrol->value.integer.value[0] = tosa_spk_func;
123 static int tosa_set_spk(struct snd_kcontrol *kcontrol,
124 struct snd_ctl_elem_value *ucontrol)
126 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
128 if (tosa_spk_func == ucontrol->value.integer.value[0])
131 tosa_spk_func = ucontrol->value.integer.value[0];
132 tosa_ext_control(codec);
136 /* tosa dapm event handlers */
137 static int tosa_hp_event(struct snd_soc_dapm_widget *w,
138 struct snd_kcontrol *k, int event)
140 gpio_set_value(TOSA_GPIO_L_MUTE, SND_SOC_DAPM_EVENT_ON(event) ? 1 :0);
144 /* tosa machine dapm widgets */
145 static const struct snd_soc_dapm_widget tosa_dapm_widgets[] = {
146 SND_SOC_DAPM_HP("Headphone Jack", tosa_hp_event),
147 SND_SOC_DAPM_HP("Headset Jack", NULL),
148 SND_SOC_DAPM_MIC("Mic (Internal)", NULL),
149 SND_SOC_DAPM_SPK("Speaker", NULL),
153 static const struct snd_soc_dapm_route audio_map[] = {
155 /* headphone connected to HPOUTL, HPOUTR */
156 {"Headphone Jack", NULL, "HPOUTL"},
157 {"Headphone Jack", NULL, "HPOUTR"},
159 /* ext speaker connected to LOUT2, ROUT2 */
160 {"Speaker", NULL, "LOUT2"},
161 {"Speaker", NULL, "ROUT2"},
163 /* internal mic is connected to mic1, mic2 differential - with bias */
164 {"MIC1", NULL, "Mic Bias"},
165 {"MIC2", NULL, "Mic Bias"},
166 {"Mic Bias", NULL, "Mic (Internal)"},
168 /* headset is connected to HPOUTR, and LINEINR with bias */
169 {"Headset Jack", NULL, "HPOUTR"},
170 {"LINEINR", NULL, "Mic Bias"},
171 {"Mic Bias", NULL, "Headset Jack"},
174 static const char *jack_function[] = {"Headphone", "Mic", "Line", "Headset",
176 static const char *spk_function[] = {"On", "Off"};
177 static const struct soc_enum tosa_enum[] = {
178 SOC_ENUM_SINGLE_EXT(5, jack_function),
179 SOC_ENUM_SINGLE_EXT(2, spk_function),
182 static const struct snd_kcontrol_new tosa_controls[] = {
183 SOC_ENUM_EXT("Jack Function", tosa_enum[0], tosa_get_jack,
185 SOC_ENUM_EXT("Speaker Function", tosa_enum[1], tosa_get_spk,
189 static int tosa_ac97_init(struct snd_soc_codec *codec)
193 snd_soc_dapm_disable_pin(codec, "OUT3");
194 snd_soc_dapm_disable_pin(codec, "MONOOUT");
196 /* add tosa specific controls */
197 for (i = 0; i < ARRAY_SIZE(tosa_controls); i++) {
198 err = snd_ctl_add(codec->card,
199 snd_soc_cnew(&tosa_controls[i],codec, NULL));
204 /* add tosa specific widgets */
205 snd_soc_dapm_new_controls(codec, tosa_dapm_widgets,
206 ARRAY_SIZE(tosa_dapm_widgets));
208 /* set up tosa specific audio path audio_map */
209 snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
211 snd_soc_dapm_sync(codec);
215 static struct snd_soc_dai_link tosa_dai[] = {
218 .stream_name = "AC97 HiFi",
219 .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_HIFI],
220 .codec_dai = &wm9712_dai[WM9712_DAI_AC97_HIFI],
221 .init = tosa_ac97_init,
226 .stream_name = "AC97 Aux",
227 .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_AUX],
228 .codec_dai = &wm9712_dai[WM9712_DAI_AC97_AUX],
233 static struct snd_soc_machine tosa = {
235 .dai_link = tosa_dai,
236 .num_links = ARRAY_SIZE(tosa_dai),
239 static struct snd_soc_device tosa_snd_devdata = {
241 .platform = &pxa2xx_soc_platform,
242 .codec_dev = &soc_codec_dev_wm9712,
245 static struct platform_device *tosa_snd_device;
247 static int __init tosa_init(void)
251 if (!machine_is_tosa())
254 ret = gpio_request(TOSA_GPIO_L_MUTE, "Headphone Jack");
257 gpio_direction_output(TOSA_GPIO_L_MUTE, 0);
259 tosa_snd_device = platform_device_alloc("soc-audio", -1);
260 if (!tosa_snd_device) {
265 platform_set_drvdata(tosa_snd_device, &tosa_snd_devdata);
266 tosa_snd_devdata.dev = &tosa_snd_device->dev;
267 ret = platform_device_add(tosa_snd_device);
272 platform_device_put(tosa_snd_device);
275 gpio_free(TOSA_GPIO_L_MUTE);
280 static void __exit tosa_exit(void)
282 platform_device_unregister(tosa_snd_device);
283 gpio_free(TOSA_GPIO_L_MUTE);
286 module_init(tosa_init);
287 module_exit(tosa_exit);
289 /* Module information */
290 MODULE_AUTHOR("Richard Purdie");
291 MODULE_DESCRIPTION("ALSA SoC Tosa");
292 MODULE_LICENSE("GPL");