300 lines
7.0 KiB
C
300 lines
7.0 KiB
C
/*
|
|
* tosa.c -- SoC audio for Tosa
|
|
*
|
|
* Copyright 2005 Wolfson Microelectronics PLC.
|
|
* Copyright 2005 Openedhand Ltd.
|
|
*
|
|
* Authors: Liam Girdwood <lrg@slimlogic.co.uk>
|
|
* Richard Purdie <richard@openedhand.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the
|
|
* Free Software Foundation; either version 2 of the License, or (at your
|
|
* option) any later version.
|
|
*
|
|
* GPIO's
|
|
* 1 - Jack Insertion
|
|
* 5 - Hookswitch (headset answer/hang up switch)
|
|
*
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/moduleparam.h>
|
|
#include <linux/device.h>
|
|
#include <linux/gpio.h>
|
|
|
|
#include <sound/core.h>
|
|
#include <sound/pcm.h>
|
|
#include <sound/soc.h>
|
|
#include <sound/soc-dapm.h>
|
|
|
|
#include <asm/mach-types.h>
|
|
#include <mach/tosa.h>
|
|
#include <mach/audio.h>
|
|
|
|
#include "../codecs/wm9712.h"
|
|
#include "pxa2xx-ac97.h"
|
|
|
|
static struct snd_soc_card tosa;
|
|
|
|
#define TOSA_HP 0
|
|
#define TOSA_MIC_INT 1
|
|
#define TOSA_HEADSET 2
|
|
#define TOSA_HP_OFF 3
|
|
#define TOSA_SPK_ON 0
|
|
#define TOSA_SPK_OFF 1
|
|
|
|
static int tosa_jack_func;
|
|
static int tosa_spk_func;
|
|
|
|
static void tosa_ext_control(struct snd_soc_codec *codec)
|
|
{
|
|
/* set up jack connection */
|
|
switch (tosa_jack_func) {
|
|
case TOSA_HP:
|
|
snd_soc_dapm_disable_pin(codec, "Mic (Internal)");
|
|
snd_soc_dapm_enable_pin(codec, "Headphone Jack");
|
|
snd_soc_dapm_disable_pin(codec, "Headset Jack");
|
|
break;
|
|
case TOSA_MIC_INT:
|
|
snd_soc_dapm_enable_pin(codec, "Mic (Internal)");
|
|
snd_soc_dapm_disable_pin(codec, "Headphone Jack");
|
|
snd_soc_dapm_disable_pin(codec, "Headset Jack");
|
|
break;
|
|
case TOSA_HEADSET:
|
|
snd_soc_dapm_disable_pin(codec, "Mic (Internal)");
|
|
snd_soc_dapm_disable_pin(codec, "Headphone Jack");
|
|
snd_soc_dapm_enable_pin(codec, "Headset Jack");
|
|
break;
|
|
}
|
|
|
|
if (tosa_spk_func == TOSA_SPK_ON)
|
|
snd_soc_dapm_enable_pin(codec, "Speaker");
|
|
else
|
|
snd_soc_dapm_disable_pin(codec, "Speaker");
|
|
|
|
snd_soc_dapm_sync(codec);
|
|
}
|
|
|
|
static int tosa_startup(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_soc_pcm_runtime *rtd = substream->private_data;
|
|
struct snd_soc_codec *codec = rtd->card->codec;
|
|
|
|
/* check the jack status at stream startup */
|
|
tosa_ext_control(codec);
|
|
return 0;
|
|
}
|
|
|
|
static struct snd_soc_ops tosa_ops = {
|
|
.startup = tosa_startup,
|
|
};
|
|
|
|
static int tosa_get_jack(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
ucontrol->value.integer.value[0] = tosa_jack_func;
|
|
return 0;
|
|
}
|
|
|
|
static int tosa_set_jack(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
|
|
|
|
if (tosa_jack_func == ucontrol->value.integer.value[0])
|
|
return 0;
|
|
|
|
tosa_jack_func = ucontrol->value.integer.value[0];
|
|
tosa_ext_control(codec);
|
|
return 1;
|
|
}
|
|
|
|
static int tosa_get_spk(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
ucontrol->value.integer.value[0] = tosa_spk_func;
|
|
return 0;
|
|
}
|
|
|
|
static int tosa_set_spk(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
|
|
|
|
if (tosa_spk_func == ucontrol->value.integer.value[0])
|
|
return 0;
|
|
|
|
tosa_spk_func = ucontrol->value.integer.value[0];
|
|
tosa_ext_control(codec);
|
|
return 1;
|
|
}
|
|
|
|
/* tosa dapm event handlers */
|
|
static int tosa_hp_event(struct snd_soc_dapm_widget *w,
|
|
struct snd_kcontrol *k, int event)
|
|
{
|
|
gpio_set_value(TOSA_GPIO_L_MUTE, SND_SOC_DAPM_EVENT_ON(event) ? 1 :0);
|
|
return 0;
|
|
}
|
|
|
|
/* tosa machine dapm widgets */
|
|
static const struct snd_soc_dapm_widget tosa_dapm_widgets[] = {
|
|
SND_SOC_DAPM_HP("Headphone Jack", tosa_hp_event),
|
|
SND_SOC_DAPM_HP("Headset Jack", NULL),
|
|
SND_SOC_DAPM_MIC("Mic (Internal)", NULL),
|
|
SND_SOC_DAPM_SPK("Speaker", NULL),
|
|
};
|
|
|
|
/* tosa audio map */
|
|
static const struct snd_soc_dapm_route audio_map[] = {
|
|
|
|
/* headphone connected to HPOUTL, HPOUTR */
|
|
{"Headphone Jack", NULL, "HPOUTL"},
|
|
{"Headphone Jack", NULL, "HPOUTR"},
|
|
|
|
/* ext speaker connected to LOUT2, ROUT2 */
|
|
{"Speaker", NULL, "LOUT2"},
|
|
{"Speaker", NULL, "ROUT2"},
|
|
|
|
/* internal mic is connected to mic1, mic2 differential - with bias */
|
|
{"MIC1", NULL, "Mic Bias"},
|
|
{"MIC2", NULL, "Mic Bias"},
|
|
{"Mic Bias", NULL, "Mic (Internal)"},
|
|
|
|
/* headset is connected to HPOUTR, and LINEINR with bias */
|
|
{"Headset Jack", NULL, "HPOUTR"},
|
|
{"LINEINR", NULL, "Mic Bias"},
|
|
{"Mic Bias", NULL, "Headset Jack"},
|
|
};
|
|
|
|
static const char *jack_function[] = {"Headphone", "Mic", "Line", "Headset",
|
|
"Off"};
|
|
static const char *spk_function[] = {"On", "Off"};
|
|
static const struct soc_enum tosa_enum[] = {
|
|
SOC_ENUM_SINGLE_EXT(5, jack_function),
|
|
SOC_ENUM_SINGLE_EXT(2, spk_function),
|
|
};
|
|
|
|
static const struct snd_kcontrol_new tosa_controls[] = {
|
|
SOC_ENUM_EXT("Jack Function", tosa_enum[0], tosa_get_jack,
|
|
tosa_set_jack),
|
|
SOC_ENUM_EXT("Speaker Function", tosa_enum[1], tosa_get_spk,
|
|
tosa_set_spk),
|
|
};
|
|
|
|
static int tosa_ac97_init(struct snd_soc_pcm_runtime *rtd)
|
|
{
|
|
struct snd_soc_codec *codec = rtd->codec;
|
|
int err;
|
|
|
|
snd_soc_dapm_nc_pin(codec, "OUT3");
|
|
snd_soc_dapm_nc_pin(codec, "MONOOUT");
|
|
|
|
/* add tosa specific controls */
|
|
err = snd_soc_add_controls(codec, tosa_controls,
|
|
ARRAY_SIZE(tosa_controls));
|
|
if (err < 0)
|
|
return err;
|
|
|
|
/* add tosa specific widgets */
|
|
snd_soc_dapm_new_controls(codec, tosa_dapm_widgets,
|
|
ARRAY_SIZE(tosa_dapm_widgets));
|
|
|
|
/* set up tosa specific audio path audio_map */
|
|
snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
|
|
|
|
snd_soc_dapm_sync(codec);
|
|
return 0;
|
|
}
|
|
|
|
static struct snd_soc_dai_link tosa_dai[] = {
|
|
{
|
|
.name = "AC97",
|
|
.stream_name = "AC97 HiFi",
|
|
.cpu_dai_name = "pxa-ac97.0",
|
|
.codec_dai_name = "wm9712-hifi",
|
|
.platform_name = "pxa-pcm-audio",
|
|
.codec_name = "wm9712-codec",
|
|
.init = tosa_ac97_init,
|
|
.ops = &tosa_ops,
|
|
},
|
|
{
|
|
.name = "AC97 Aux",
|
|
.stream_name = "AC97 Aux",
|
|
.cpu_dai_name = "pxa-ac97.1",
|
|
.codec_dai_name = "wm9712-aux",
|
|
.platform_name = "pxa-pcm-audio",
|
|
.codec_name = "wm9712-codec",
|
|
.ops = &tosa_ops,
|
|
},
|
|
};
|
|
|
|
static int tosa_probe(struct platform_device *dev)
|
|
{
|
|
int ret;
|
|
|
|
ret = gpio_request(TOSA_GPIO_L_MUTE, "Headphone Jack");
|
|
if (ret)
|
|
return ret;
|
|
ret = gpio_direction_output(TOSA_GPIO_L_MUTE, 0);
|
|
if (ret)
|
|
gpio_free(TOSA_GPIO_L_MUTE);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int tosa_remove(struct platform_device *dev)
|
|
{
|
|
gpio_free(TOSA_GPIO_L_MUTE);
|
|
return 0;
|
|
}
|
|
|
|
static struct snd_soc_card tosa = {
|
|
.name = "Tosa",
|
|
.dai_link = tosa_dai,
|
|
.num_links = ARRAY_SIZE(tosa_dai),
|
|
.probe = tosa_probe,
|
|
.remove = tosa_remove,
|
|
};
|
|
|
|
static struct platform_device *tosa_snd_device;
|
|
|
|
static int __init tosa_init(void)
|
|
{
|
|
int ret;
|
|
|
|
if (!machine_is_tosa())
|
|
return -ENODEV;
|
|
|
|
tosa_snd_device = platform_device_alloc("soc-audio", -1);
|
|
if (!tosa_snd_device) {
|
|
ret = -ENOMEM;
|
|
goto err_alloc;
|
|
}
|
|
|
|
platform_set_drvdata(tosa_snd_device, &tosa);
|
|
ret = platform_device_add(tosa_snd_device);
|
|
|
|
if (!ret)
|
|
return 0;
|
|
|
|
platform_device_put(tosa_snd_device);
|
|
|
|
err_alloc:
|
|
return ret;
|
|
}
|
|
|
|
static void __exit tosa_exit(void)
|
|
{
|
|
platform_device_unregister(tosa_snd_device);
|
|
}
|
|
|
|
module_init(tosa_init);
|
|
module_exit(tosa_exit);
|
|
|
|
/* Module information */
|
|
MODULE_AUTHOR("Richard Purdie");
|
|
MODULE_DESCRIPTION("ALSA SoC Tosa");
|
|
MODULE_LICENSE("GPL");
|