/*
* n810.c -- SoC audio for Nokia N810
*
* Copyright (C) 2008 Nokia Corporation
*
* Contact: Jarkko Nikula <jarkko.nikula@nokia.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
*/
#include <linux/clk.h>
#include <linux/platform_device.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <asm/mach-types.h>
#include <asm/arch/hardware.h>
#include <asm/arch/gpio.h>
#include <asm/arch/mcbsp.h>
#include "omap-mcbsp.h"
#include "omap-pcm.h"
#include "../codecs/tlv320aic3x.h"
#define RX44_HEADSET_AMP_GPIO 10
#define RX44_SPEAKER_AMP_GPIO 101
static struct clk *sys_clkout2;
static struct clk *sys_clkout2_src;
static struct clk *func96m_clk;
static int n810_spk_func;
static int n810_jack_func;
static void n810_ext_control(struct snd_soc_codec *codec)
{
snd_soc_dapm_set_endpoint(codec, "Ext Spk", n810_spk_func);
snd_soc_dapm_set_endpoint(codec, "Headphone Jack", n810_jack_func);
snd_soc_dapm_sync_endpoints(codec);
}
static int n810_startup(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_codec *codec = rtd->socdev->codec;
n810_ext_control(codec);
return clk_enable(sys_clkout2);
}
static void n810_shutdown(struct snd_pcm_substream *substream)
{
clk_disable(sys_clkout2);
}
static int n810_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_codec_dai *codec_dai = rtd->dai->codec_dai;
struct snd_soc_cpu_dai *cpu_dai = rtd->dai->cpu_dai;
int err;
/* Set codec DAI configuration */
err = codec_dai->dai_ops.set_fmt(codec_dai,
SND_SOC_DAIFMT_I2S |
SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBM_CFM);
if (err < 0)
return err;
/* Set cpu DAI configuration */
err = cpu_dai->dai_ops.set_fmt(cpu_dai,
SND_SOC_DAIFMT_I2S |
SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBM_CFM);
if (err < 0)
return err;
/* Set the codec system clock for DAC and ADC */
err = codec_dai->dai_ops.set_sysclk(codec_dai, 0, 12000000,
SND_SOC_CLOCK_IN);
return err;
}
static struct snd_soc_ops n810_ops = {
.startup = n810_startup,
.hw_params = n810_hw_params,
.shutdown = n810_shutdown,
};
static int n810_get_spk(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
ucontrol->value.integer.value[0] = n810_spk_func;
return 0;
}
static int n810_set_spk(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
if (n810_spk_func == ucontrol->value.integer.value[0])
return 0;
n810_spk_func = ucontrol->value.integer.value[0];
n810_ext_control(codec);
return 1;
}
static int n810_get_jack(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
ucontrol->value.integer.value[0] = n810_jack_func;
return 0;
}
static int n810_set_jack(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
if (n810_jack_func == ucontrol->value.integer.value[0])
return 0;
n810_jack_func = ucontrol->value.integer.value[0];
n810_ext_control(codec);
return 1;
}
static int n810_spk_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *k, int event)
{
if (SND_SOC_DAPM_EVENT_ON(event))
omap_set_gpio_dataout(RX44_SPEAKER_AMP_GPIO, 1);
else
omap_set_gpio_dataout(RX44_SPEAKER_AMP_GPIO, 0);
return 0;
}
static int n810_jack_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *k, int event)
{
if (SND_SOC_DAPM_EVENT_ON(event))
omap_set_gpio_dataout(RX44_HEADSET_AMP_GPIO, 1);
else
omap_set_gpio_dataout(RX44_HEADSET_AMP_GPIO, 0);
return 0;
}
static const struct snd_soc_dapm_widget aic33_dapm_widgets[] = {
SND_SOC_DAPM_SPK("Ext Spk", n810_spk_event),
SND_SOC_DAPM_HP("Headphone Jack", n810_jack_event),
};
static const char *audio_map[][3] = {
{"Headphone Jack", NULL, "HPLOUT"},
{"Headphone Jack", NULL, "HPROUT"},
{"Ext Spk", NULL, "LLOUT"},
{"Ext Spk", NULL, "RLOUT"},
};
static const char *spk_function[] = {"Off", "On"};
static const char *jack_function[] = {"Off", "Headphone"};
static const struct soc_enum n810_enum[] = {
SOC_ENUM_SINGLE_EXT(2, spk_function),
SOC_ENUM_SINGLE_EXT(3, jack_function),
};
static const struct snd_kcontrol_new aic33_n810_controls[] = {
SOC_ENUM_EXT("Speaker Function", n810_enum[0],
n810_get_spk, n810_set_spk),
SOC_ENUM_EXT("Jack Function", n810_enum[1],
n810_get_jack, n810_set_jack),
};
static int n810_aic33_init(struct snd_soc_codec *codec)
{
int i, err;
/* Not connected */
snd_soc_dapm_set_endpoint(codec, "MONO_LOUT", 0);
snd_soc_dapm_set_endpoint(codec, "HPLCOM", 0);
snd_soc_dapm_set_endpoint(codec, "HPRCOM", 0);
/* Add N810 specific controls */
for (i = 0; i < ARRAY_SIZE(aic33_n810_controls); i++) {
err = snd_ctl_add(codec->card,
snd_soc_cnew(&aic33_n810_controls[i], codec, NULL));
if (err < 0)
return err;
}
/* Add N810 specific widgets */
for (i = 0; i < ARRAY_SIZE(aic33_dapm_widgets); i++)
snd_soc_dapm_new_control(codec, &aic33_dapm_widgets[i]);
/* Set up N810 specific audio path audio_map */
for (i = 0; i < ARRAY_SIZE(audio_map); i++)
snd_soc_dapm_connect_input(codec, audio_map[i][0],
audio_map[i][1], audio_map[i][2]);
snd_soc_dapm_sync_endpoints(codec);
return 0;
}
/* Digital audio interface glue - connects codec <--> CPU */
static struct snd_soc_dai_link n810_dai = {
.name = "TLV320AIC33",
.stream_name = "AIC33",
.cpu_dai = &omap_mcbsp_dai[0],
.codec_dai = &aic3x_dai,
.init = n810_aic33_init,
.ops = &n810_ops,
};
/* Audio machine driver */
static struct snd_soc_machine snd_soc_machine_n810 = {
.name = "N810",
.dai_link = &n810_dai,
.num_links = 1,
};
/* Audio private data */
static struct aic3x_setup_data n810_aic33_setup = {
.i2c_address = 0x18,
};
/* Audio subsystem */
static struct snd_soc_device n810_snd_devdata = {
.machine = &snd_soc_machine_n810,
.platform = &omap_soc_platform,
.codec_dev = &soc_codec_dev_aic3x,
.codec_data = &n810_aic33_setup,
};
static struct platform_device *n810_snd_device;
static int __init n810_soc_init(void)
{
int err;
struct device *dev;
if (!machine_is_nokia_n810())
return -ENODEV;
n810_snd_device = platform_device_alloc("soc-audio", -1);
if (!n810_snd_device)
return -ENOMEM;
platform_set_drvdata(n810_snd_device, &n810_snd_devdata);
n810_snd_devdata.dev = &n810_snd_device->dev;
*(unsigned int *)n810_dai.cpu_dai->private_data = 1; /* McBSP2 */
err = platform_device_add(n810_snd_device);
if (err)
goto err1;
dev = &n810_snd_device->dev;
sys_clkout2_src = clk_get(dev, "sys_clkout2_src");
if (IS_ERR(sys_clkout2_src)) {
dev_err(dev, "Could not get sys_clkout2_src clock\n");
return -ENODEV;
}
sys_clkout2 = clk_get(dev, "sys_clkout2");
if (IS_ERR(sys_clkout2)) {
dev_err(dev, "Could not get sys_clkout2\n");
goto err1;
}
/*
* Configure 12 MHz output on SYS_CLKOUT2. Therefore we must use
* 96 MHz as its parent in order to get 12 MHz
*/
func96m_clk = clk_get(dev, "func_96m_ck");
if (IS_ERR(func96m_clk)) {
dev_err(dev, "Could not get func 96M clock\n");
goto err2;
}
clk_set_parent(sys_clkout2_src, func96m_clk);
clk_set_rate(sys_clkout2, 12000000);
if (omap_request_gpio(RX44_HEADSET_AMP_GPIO) < 0)
BUG();
if (omap_request_gpio(RX44_SPEAKER_AMP_GPIO) < 0)
BUG();
omap_set_gpio_direction(RX44_HEADSET_AMP_GPIO, 0);
omap_set_gpio_direction(RX44_SPEAKER_AMP_GPIO, 0);
return 0;
err2:
clk_put(sys_clkout2);
platform_device_del(n810_snd_device);
err1:
platform_device_put(n810_snd_device);
return err;
}
static void __exit n810_soc_exit(void)
{
platform_device_unregister(n810_snd_device);
}
module_init(n810_soc_init);
module_exit(n810_soc_exit);
MODULE_AUTHOR("Jarkko Nikula <jarkko.nikula@nokia.com>");
MODULE_DESCRIPTION("ALSA SoC Nokia N810");
MODULE_LICENSE("GPL");
