344 lines
9.0 KiB
C
344 lines
9.0 KiB
C
/*
|
|
* spitz.c -- SoC audio for Sharp SL-Cxx00 models Spitz, Borzoi and Akita
|
|
*
|
|
* 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.
|
|
*
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/moduleparam.h>
|
|
#include <linux/timer.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/platform_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/spitz.h>
|
|
#include "../codecs/wm8750.h"
|
|
#include "pxa2xx-i2s.h"
|
|
|
|
#define SPITZ_HP 0
|
|
#define SPITZ_MIC 1
|
|
#define SPITZ_LINE 2
|
|
#define SPITZ_HEADSET 3
|
|
#define SPITZ_HP_OFF 4
|
|
#define SPITZ_SPK_ON 0
|
|
#define SPITZ_SPK_OFF 1
|
|
|
|
/* audio clock in Hz - rounded from 12.235MHz */
|
|
#define SPITZ_AUDIO_CLOCK 12288000
|
|
|
|
static int spitz_jack_func;
|
|
static int spitz_spk_func;
|
|
static int spitz_mic_gpio;
|
|
|
|
static void spitz_ext_control(struct snd_soc_dapm_context *dapm)
|
|
{
|
|
snd_soc_dapm_mutex_lock(dapm);
|
|
|
|
if (spitz_spk_func == SPITZ_SPK_ON)
|
|
snd_soc_dapm_enable_pin_unlocked(dapm, "Ext Spk");
|
|
else
|
|
snd_soc_dapm_disable_pin_unlocked(dapm, "Ext Spk");
|
|
|
|
/* set up jack connection */
|
|
switch (spitz_jack_func) {
|
|
case SPITZ_HP:
|
|
/* enable and unmute hp jack, disable mic bias */
|
|
snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
|
|
snd_soc_dapm_disable_pin_unlocked(dapm, "Mic Jack");
|
|
snd_soc_dapm_disable_pin_unlocked(dapm, "Line Jack");
|
|
snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack");
|
|
gpio_set_value(SPITZ_GPIO_MUTE_L, 1);
|
|
gpio_set_value(SPITZ_GPIO_MUTE_R, 1);
|
|
break;
|
|
case SPITZ_MIC:
|
|
/* enable mic jack and bias, mute hp */
|
|
snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
|
|
snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
|
|
snd_soc_dapm_disable_pin_unlocked(dapm, "Line Jack");
|
|
snd_soc_dapm_enable_pin_unlocked(dapm, "Mic Jack");
|
|
gpio_set_value(SPITZ_GPIO_MUTE_L, 0);
|
|
gpio_set_value(SPITZ_GPIO_MUTE_R, 0);
|
|
break;
|
|
case SPITZ_LINE:
|
|
/* enable line jack, disable mic bias and mute hp */
|
|
snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
|
|
snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
|
|
snd_soc_dapm_disable_pin_unlocked(dapm, "Mic Jack");
|
|
snd_soc_dapm_enable_pin_unlocked(dapm, "Line Jack");
|
|
gpio_set_value(SPITZ_GPIO_MUTE_L, 0);
|
|
gpio_set_value(SPITZ_GPIO_MUTE_R, 0);
|
|
break;
|
|
case SPITZ_HEADSET:
|
|
/* enable and unmute headset jack enable mic bias, mute L hp */
|
|
snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
|
|
snd_soc_dapm_enable_pin_unlocked(dapm, "Mic Jack");
|
|
snd_soc_dapm_disable_pin_unlocked(dapm, "Line Jack");
|
|
snd_soc_dapm_enable_pin_unlocked(dapm, "Headset Jack");
|
|
gpio_set_value(SPITZ_GPIO_MUTE_L, 0);
|
|
gpio_set_value(SPITZ_GPIO_MUTE_R, 1);
|
|
break;
|
|
case SPITZ_HP_OFF:
|
|
|
|
/* jack removed, everything off */
|
|
snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
|
|
snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
|
|
snd_soc_dapm_disable_pin_unlocked(dapm, "Mic Jack");
|
|
snd_soc_dapm_disable_pin_unlocked(dapm, "Line Jack");
|
|
gpio_set_value(SPITZ_GPIO_MUTE_L, 0);
|
|
gpio_set_value(SPITZ_GPIO_MUTE_R, 0);
|
|
break;
|
|
}
|
|
|
|
snd_soc_dapm_sync_unlocked(dapm);
|
|
|
|
snd_soc_dapm_mutex_unlock(dapm);
|
|
}
|
|
|
|
static int spitz_startup(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_soc_pcm_runtime *rtd = substream->private_data;
|
|
|
|
/* check the jack status at stream startup */
|
|
spitz_ext_control(&rtd->card->dapm);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int spitz_hw_params(struct snd_pcm_substream *substream,
|
|
struct snd_pcm_hw_params *params)
|
|
{
|
|
struct snd_soc_pcm_runtime *rtd = substream->private_data;
|
|
struct snd_soc_dai *codec_dai = rtd->codec_dai;
|
|
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
|
|
unsigned int clk = 0;
|
|
int ret = 0;
|
|
|
|
switch (params_rate(params)) {
|
|
case 8000:
|
|
case 16000:
|
|
case 48000:
|
|
case 96000:
|
|
clk = 12288000;
|
|
break;
|
|
case 11025:
|
|
case 22050:
|
|
case 44100:
|
|
clk = 11289600;
|
|
break;
|
|
}
|
|
|
|
/* set the codec system clock for DAC and ADC */
|
|
ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk,
|
|
SND_SOC_CLOCK_IN);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
/* set the I2S system clock as input (unused) */
|
|
ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
|
|
SND_SOC_CLOCK_IN);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct snd_soc_ops spitz_ops = {
|
|
.startup = spitz_startup,
|
|
.hw_params = spitz_hw_params,
|
|
};
|
|
|
|
static int spitz_get_jack(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
ucontrol->value.enumerated.item[0] = spitz_jack_func;
|
|
return 0;
|
|
}
|
|
|
|
static int spitz_set_jack(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
|
|
|
|
if (spitz_jack_func == ucontrol->value.enumerated.item[0])
|
|
return 0;
|
|
|
|
spitz_jack_func = ucontrol->value.enumerated.item[0];
|
|
spitz_ext_control(&card->dapm);
|
|
return 1;
|
|
}
|
|
|
|
static int spitz_get_spk(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
ucontrol->value.enumerated.item[0] = spitz_spk_func;
|
|
return 0;
|
|
}
|
|
|
|
static int spitz_set_spk(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
|
|
|
|
if (spitz_spk_func == ucontrol->value.enumerated.item[0])
|
|
return 0;
|
|
|
|
spitz_spk_func = ucontrol->value.enumerated.item[0];
|
|
spitz_ext_control(&card->dapm);
|
|
return 1;
|
|
}
|
|
|
|
static int spitz_mic_bias(struct snd_soc_dapm_widget *w,
|
|
struct snd_kcontrol *k, int event)
|
|
{
|
|
gpio_set_value_cansleep(spitz_mic_gpio, SND_SOC_DAPM_EVENT_ON(event));
|
|
return 0;
|
|
}
|
|
|
|
/* spitz machine dapm widgets */
|
|
static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = {
|
|
SND_SOC_DAPM_HP("Headphone Jack", NULL),
|
|
SND_SOC_DAPM_MIC("Mic Jack", spitz_mic_bias),
|
|
SND_SOC_DAPM_SPK("Ext Spk", NULL),
|
|
SND_SOC_DAPM_LINE("Line Jack", NULL),
|
|
|
|
/* headset is a mic and mono headphone */
|
|
SND_SOC_DAPM_HP("Headset Jack", NULL),
|
|
};
|
|
|
|
/* Spitz machine audio_map */
|
|
static const struct snd_soc_dapm_route spitz_audio_map[] = {
|
|
|
|
/* headphone connected to LOUT1, ROUT1 */
|
|
{"Headphone Jack", NULL, "LOUT1"},
|
|
{"Headphone Jack", NULL, "ROUT1"},
|
|
|
|
/* headset connected to ROUT1 and LINPUT1 with bias (def below) */
|
|
{"Headset Jack", NULL, "ROUT1"},
|
|
|
|
/* ext speaker connected to LOUT2, ROUT2 */
|
|
{"Ext Spk", NULL, "ROUT2"},
|
|
{"Ext Spk", NULL, "LOUT2"},
|
|
|
|
/* mic is connected to input 1 - with bias */
|
|
{"LINPUT1", NULL, "Mic Bias"},
|
|
{"Mic Bias", NULL, "Mic Jack"},
|
|
|
|
/* line is connected to input 1 - no bias */
|
|
{"LINPUT1", NULL, "Line 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 spitz_enum[] = {
|
|
SOC_ENUM_SINGLE_EXT(5, jack_function),
|
|
SOC_ENUM_SINGLE_EXT(2, spk_function),
|
|
};
|
|
|
|
static const struct snd_kcontrol_new wm8750_spitz_controls[] = {
|
|
SOC_ENUM_EXT("Jack Function", spitz_enum[0], spitz_get_jack,
|
|
spitz_set_jack),
|
|
SOC_ENUM_EXT("Speaker Function", spitz_enum[1], spitz_get_spk,
|
|
spitz_set_spk),
|
|
};
|
|
|
|
/* spitz digital audio interface glue - connects codec <--> CPU */
|
|
static struct snd_soc_dai_link spitz_dai = {
|
|
.name = "wm8750",
|
|
.stream_name = "WM8750",
|
|
.cpu_dai_name = "pxa2xx-i2s",
|
|
.codec_dai_name = "wm8750-hifi",
|
|
.platform_name = "pxa-pcm-audio",
|
|
.codec_name = "wm8750.0-001b",
|
|
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
|
|
SND_SOC_DAIFMT_CBS_CFS,
|
|
.ops = &spitz_ops,
|
|
};
|
|
|
|
/* spitz audio machine driver */
|
|
static struct snd_soc_card snd_soc_spitz = {
|
|
.name = "Spitz",
|
|
.owner = THIS_MODULE,
|
|
.dai_link = &spitz_dai,
|
|
.num_links = 1,
|
|
|
|
.controls = wm8750_spitz_controls,
|
|
.num_controls = ARRAY_SIZE(wm8750_spitz_controls),
|
|
.dapm_widgets = wm8750_dapm_widgets,
|
|
.num_dapm_widgets = ARRAY_SIZE(wm8750_dapm_widgets),
|
|
.dapm_routes = spitz_audio_map,
|
|
.num_dapm_routes = ARRAY_SIZE(spitz_audio_map),
|
|
.fully_routed = true,
|
|
};
|
|
|
|
static int spitz_probe(struct platform_device *pdev)
|
|
{
|
|
struct snd_soc_card *card = &snd_soc_spitz;
|
|
int ret;
|
|
|
|
if (machine_is_akita())
|
|
spitz_mic_gpio = AKITA_GPIO_MIC_BIAS;
|
|
else
|
|
spitz_mic_gpio = SPITZ_GPIO_MIC_BIAS;
|
|
|
|
ret = gpio_request(spitz_mic_gpio, "MIC GPIO");
|
|
if (ret)
|
|
goto err1;
|
|
|
|
ret = gpio_direction_output(spitz_mic_gpio, 0);
|
|
if (ret)
|
|
goto err2;
|
|
|
|
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);
|
|
goto err2;
|
|
}
|
|
|
|
return 0;
|
|
|
|
err2:
|
|
gpio_free(spitz_mic_gpio);
|
|
err1:
|
|
return ret;
|
|
}
|
|
|
|
static int spitz_remove(struct platform_device *pdev)
|
|
{
|
|
gpio_free(spitz_mic_gpio);
|
|
return 0;
|
|
}
|
|
|
|
static struct platform_driver spitz_driver = {
|
|
.driver = {
|
|
.name = "spitz-audio",
|
|
.pm = &snd_soc_pm_ops,
|
|
},
|
|
.probe = spitz_probe,
|
|
.remove = spitz_remove,
|
|
};
|
|
|
|
module_platform_driver(spitz_driver);
|
|
|
|
MODULE_AUTHOR("Richard Purdie");
|
|
MODULE_DESCRIPTION("ALSA SoC Spitz");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_ALIAS("platform:spitz-audio");
|