blob: 155899c08c0c4c15ddcdf5fe3e6874463c6cb578 [file] [log] [blame]
/*
* mx27vis-aic32x4.c
*
* Copyright 2011 Vista Silicon S.L.
*
* Author: Javier Martin <javier.martin@vista-silicon.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.
*
* 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 Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/device.h>
#include <linux/i2c.h>
#include <linux/gpio.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/tlv.h>
#include <asm/mach-types.h>
#include <mach/audmux.h>
#include <mach/iomux-mx27.h>
#include "../codecs/tlv320aic32x4.h"
#include "imx-ssi.h"
#define MX27VIS_AMP_GAIN 0
#define MX27VIS_AMP_MUTE 1
#define MX27VIS_PIN_G0 (GPIO_PORTF + 9)
#define MX27VIS_PIN_G1 (GPIO_PORTF + 8)
#define MX27VIS_PIN_SDL (GPIO_PORTE + 5)
#define MX27VIS_PIN_SDR (GPIO_PORTF + 7)
static int mx27vis_amp_gain;
static int mx27vis_amp_mute;
static const int mx27vis_amp_pins[] = {
MX27VIS_PIN_G0 | GPIO_GPIO | GPIO_OUT,
MX27VIS_PIN_G1 | GPIO_GPIO | GPIO_OUT,
MX27VIS_PIN_SDL | GPIO_GPIO | GPIO_OUT,
MX27VIS_PIN_SDR | GPIO_GPIO | GPIO_OUT,
};
static int mx27vis_aic32x4_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;
int ret;
u32 dai_format;
dai_format = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBM_CFM;
/* set codec DAI configuration */
snd_soc_dai_set_fmt(codec_dai, dai_format);
/* set cpu DAI configuration */
snd_soc_dai_set_fmt(cpu_dai, dai_format);
ret = snd_soc_dai_set_sysclk(codec_dai, 0,
25000000, SND_SOC_CLOCK_OUT);
if (ret) {
pr_err("%s: failed setting codec sysclk\n", __func__);
return ret;
}
ret = snd_soc_dai_set_sysclk(cpu_dai, IMX_SSP_SYS_CLK, 0,
SND_SOC_CLOCK_IN);
if (ret) {
pr_err("can't set CPU system clock IMX_SSP_SYS_CLK\n");
return ret;
}
return 0;
}
static struct snd_soc_ops mx27vis_aic32x4_snd_ops = {
.hw_params = mx27vis_aic32x4_hw_params,
};
static int mx27vis_amp_set(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
int value = ucontrol->value.integer.value[0];
unsigned int reg = mc->reg;
int max = mc->max;
if (value > max)
return -EINVAL;
switch (reg) {
case MX27VIS_AMP_GAIN:
gpio_set_value(MX27VIS_PIN_G0, value & 1);
gpio_set_value(MX27VIS_PIN_G1, value >> 1);
mx27vis_amp_gain = value;
break;
case MX27VIS_AMP_MUTE:
gpio_set_value(MX27VIS_PIN_SDL, value & 1);
gpio_set_value(MX27VIS_PIN_SDR, value >> 1);
mx27vis_amp_mute = value;
break;
}
return 0;
}
static int mx27vis_amp_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
unsigned int reg = mc->reg;
switch (reg) {
case MX27VIS_AMP_GAIN:
ucontrol->value.integer.value[0] = mx27vis_amp_gain;
break;
case MX27VIS_AMP_MUTE:
ucontrol->value.integer.value[0] = mx27vis_amp_mute;
break;
}
return 0;
}
/* From 6dB to 24dB in steps of 6dB */
static const DECLARE_TLV_DB_SCALE(mx27vis_amp_tlv, 600, 600, 0);
static const struct snd_kcontrol_new mx27vis_aic32x4_controls[] = {
SOC_DAPM_PIN_SWITCH("External Mic"),
SOC_SINGLE_EXT_TLV("LO Ext Boost", MX27VIS_AMP_GAIN, 0, 3, 0,
mx27vis_amp_get, mx27vis_amp_set, mx27vis_amp_tlv),
SOC_DOUBLE_EXT("LO Ext Mute Switch", MX27VIS_AMP_MUTE, 0, 1, 1, 0,
mx27vis_amp_get, mx27vis_amp_set),
};
static const struct snd_soc_dapm_widget aic32x4_dapm_widgets[] = {
SND_SOC_DAPM_MIC("External Mic", NULL),
};
static const struct snd_soc_dapm_route aic32x4_dapm_routes[] = {
{"Mic Bias", NULL, "External Mic"},
{"IN1_R", NULL, "Mic Bias"},
{"IN2_R", NULL, "Mic Bias"},
{"IN3_R", NULL, "Mic Bias"},
{"IN1_L", NULL, "Mic Bias"},
{"IN2_L", NULL, "Mic Bias"},
{"IN3_L", NULL, "Mic Bias"},
};
static struct snd_soc_dai_link mx27vis_aic32x4_dai = {
.name = "tlv320aic32x4",
.stream_name = "TLV320AIC32X4",
.codec_dai_name = "tlv320aic32x4-hifi",
.platform_name = "imx-pcm-audio.0",
.codec_name = "tlv320aic32x4.0-0018",
.cpu_dai_name = "imx-ssi.0",
.ops = &mx27vis_aic32x4_snd_ops,
};
static struct snd_soc_card mx27vis_aic32x4 = {
.name = "visstrim_m10-audio",
.owner = THIS_MODULE,
.dai_link = &mx27vis_aic32x4_dai,
.num_links = 1,
.controls = mx27vis_aic32x4_controls,
.num_controls = ARRAY_SIZE(mx27vis_aic32x4_controls),
.dapm_widgets = aic32x4_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(aic32x4_dapm_widgets),
.dapm_routes = aic32x4_dapm_routes,
.num_dapm_routes = ARRAY_SIZE(aic32x4_dapm_routes),
};
static struct platform_device *mx27vis_aic32x4_snd_device;
static int __init mx27vis_aic32x4_init(void)
{
int ret;
mx27vis_aic32x4_snd_device = platform_device_alloc("soc-audio", -1);
if (!mx27vis_aic32x4_snd_device)
return -ENOMEM;
platform_set_drvdata(mx27vis_aic32x4_snd_device, &mx27vis_aic32x4);
ret = platform_device_add(mx27vis_aic32x4_snd_device);
if (ret) {
printk(KERN_ERR "ASoC: Platform device allocation failed\n");
platform_device_put(mx27vis_aic32x4_snd_device);
}
/* Connect SSI0 as clock slave to SSI1 external pins */
mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
MXC_AUDMUX_V1_PCR_SYN |
MXC_AUDMUX_V1_PCR_TFSDIR |
MXC_AUDMUX_V1_PCR_TCLKDIR |
MXC_AUDMUX_V1_PCR_TFCSEL(MX27_AUDMUX_PPCR1_SSI_PINS_1) |
MXC_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_PPCR1_SSI_PINS_1)
);
mxc_audmux_v1_configure_port(MX27_AUDMUX_PPCR1_SSI_PINS_1,
MXC_AUDMUX_V1_PCR_SYN |
MXC_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0)
);
ret = mxc_gpio_setup_multiple_pins(mx27vis_amp_pins,
ARRAY_SIZE(mx27vis_amp_pins), "MX27VIS_AMP");
if (ret) {
printk(KERN_ERR "ASoC: unable to setup gpios\n");
platform_device_put(mx27vis_aic32x4_snd_device);
}
return ret;
}
static void __exit mx27vis_aic32x4_exit(void)
{
platform_device_unregister(mx27vis_aic32x4_snd_device);
}
module_init(mx27vis_aic32x4_init);
module_exit(mx27vis_aic32x4_exit);
MODULE_AUTHOR("Javier Martin <javier.martin@vista-silicon.com>");
MODULE_DESCRIPTION("ALSA SoC AIC32X4 mx27 visstrim");
MODULE_LICENSE("GPL");