264 lines
6.5 KiB
C
264 lines
6.5 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 <asm/mach-types.h>
|
|
#include <mach/tosa.h>
|
|
#include <mach/audio.h>
|
|
|
|
#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_dapm_context *dapm)
|
|
{
|
|
|
|
snd_soc_dapm_mutex_lock(dapm);
|
|
|
|
/* set up jack connection */
|
|
switch (tosa_jack_func) {
|
|
case TOSA_HP:
|
|
snd_soc_dapm_disable_pin_unlocked(dapm, "Mic (Internal)");
|
|
snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack");
|
|
snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
|
|
break;
|
|
case TOSA_MIC_INT:
|
|
snd_soc_dapm_enable_pin_unlocked(dapm, "Mic (Internal)");
|
|
snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
|
|
snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
|
|
break;
|
|
case TOSA_HEADSET:
|
|
snd_soc_dapm_disable_pin_unlocked(dapm, "Mic (Internal)");
|
|
snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
|
|
snd_soc_dapm_enable_pin_unlocked(dapm, "Headset Jack");
|
|
break;
|
|
}
|
|
|
|
if (tosa_spk_func == TOSA_SPK_ON)
|
|
snd_soc_dapm_enable_pin_unlocked(dapm, "Speaker");
|
|
else
|
|
snd_soc_dapm_disable_pin_unlocked(dapm, "Speaker");
|
|
|
|
snd_soc_dapm_sync_unlocked(dapm);
|
|
|
|
snd_soc_dapm_mutex_unlock(dapm);
|
|
}
|
|
|
|
static int tosa_startup(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_soc_pcm_runtime *rtd = substream->private_data;
|
|
|
|
/* check the jack status at stream startup */
|
|
tosa_ext_control(&rtd->card->dapm);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const 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.enumerated.item[0] = tosa_jack_func;
|
|
return 0;
|
|
}
|
|
|
|
static int tosa_set_jack(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
|
|
|
|
if (tosa_jack_func == ucontrol->value.enumerated.item[0])
|
|
return 0;
|
|
|
|
tosa_jack_func = ucontrol->value.enumerated.item[0];
|
|
tosa_ext_control(&card->dapm);
|
|
return 1;
|
|
}
|
|
|
|
static int tosa_get_spk(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
ucontrol->value.enumerated.item[0] = tosa_spk_func;
|
|
return 0;
|
|
}
|
|
|
|
static int tosa_set_spk(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
|
|
|
|
if (tosa_spk_func == ucontrol->value.enumerated.item[0])
|
|
return 0;
|
|
|
|
tosa_spk_func = ucontrol->value.enumerated.item[0];
|
|
tosa_ext_control(&card->dapm);
|
|
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 * const jack_function[] = {"Headphone", "Mic", "Line",
|
|
"Headset", "Off"};
|
|
static const char * const 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 struct snd_soc_dai_link tosa_dai[] = {
|
|
{
|
|
.name = "AC97",
|
|
.stream_name = "AC97 HiFi",
|
|
.cpu_dai_name = "pxa2xx-ac97",
|
|
.codec_dai_name = "wm9712-hifi",
|
|
.platform_name = "pxa-pcm-audio",
|
|
.codec_name = "wm9712-codec",
|
|
.ops = &tosa_ops,
|
|
},
|
|
{
|
|
.name = "AC97 Aux",
|
|
.stream_name = "AC97 Aux",
|
|
.cpu_dai_name = "pxa2xx-ac97-aux",
|
|
.codec_dai_name = "wm9712-aux",
|
|
.platform_name = "pxa-pcm-audio",
|
|
.codec_name = "wm9712-codec",
|
|
.ops = &tosa_ops,
|
|
},
|
|
};
|
|
|
|
static struct snd_soc_card tosa = {
|
|
.name = "Tosa",
|
|
.owner = THIS_MODULE,
|
|
.dai_link = tosa_dai,
|
|
.num_links = ARRAY_SIZE(tosa_dai),
|
|
|
|
.controls = tosa_controls,
|
|
.num_controls = ARRAY_SIZE(tosa_controls),
|
|
.dapm_widgets = tosa_dapm_widgets,
|
|
.num_dapm_widgets = ARRAY_SIZE(tosa_dapm_widgets),
|
|
.dapm_routes = audio_map,
|
|
.num_dapm_routes = ARRAY_SIZE(audio_map),
|
|
.fully_routed = true,
|
|
};
|
|
|
|
static int tosa_probe(struct platform_device *pdev)
|
|
{
|
|
struct snd_soc_card *card = ⤩
|
|
int ret;
|
|
|
|
ret = gpio_request_one(TOSA_GPIO_L_MUTE, GPIOF_OUT_INIT_LOW,
|
|
"Headphone Jack");
|
|
if (ret)
|
|
return ret;
|
|
|
|
card->dev = &pdev->dev;
|
|
|
|
ret = devm_snd_soc_register_card(&pdev->dev, card);
|
|
if (ret) {
|
|
dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
|
|
ret);
|
|
gpio_free(TOSA_GPIO_L_MUTE);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static int tosa_remove(struct platform_device *pdev)
|
|
{
|
|
gpio_free(TOSA_GPIO_L_MUTE);
|
|
return 0;
|
|
}
|
|
|
|
static struct platform_driver tosa_driver = {
|
|
.driver = {
|
|
.name = "tosa-audio",
|
|
.pm = &snd_soc_pm_ops,
|
|
},
|
|
.probe = tosa_probe,
|
|
.remove = tosa_remove,
|
|
};
|
|
|
|
module_platform_driver(tosa_driver);
|
|
|
|
/* Module information */
|
|
MODULE_AUTHOR("Richard Purdie");
|
|
MODULE_DESCRIPTION("ALSA SoC Tosa");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_ALIAS("platform:tosa-audio");
|