246 lines
6.7 KiB
C
246 lines
6.7 KiB
C
/*
|
|
* 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/iomux-mx27.h>
|
|
|
|
#include "../codecs/tlv320aic32x4.h"
|
|
#include "imx-ssi.h"
|
|
#include "imx-audmux.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 int __devinit mx27vis_aic32x4_probe(struct platform_device *pdev)
|
|
{
|
|
int ret;
|
|
|
|
mx27vis_aic32x4.dev = &pdev->dev;
|
|
ret = snd_soc_register_card(&mx27vis_aic32x4);
|
|
if (ret) {
|
|
dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
|
|
ret);
|
|
return ret;
|
|
}
|
|
|
|
/* Connect SSI0 as clock slave to SSI1 external pins */
|
|
imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
|
|
IMX_AUDMUX_V1_PCR_SYN |
|
|
IMX_AUDMUX_V1_PCR_TFSDIR |
|
|
IMX_AUDMUX_V1_PCR_TCLKDIR |
|
|
IMX_AUDMUX_V1_PCR_TFCSEL(MX27_AUDMUX_PPCR1_SSI_PINS_1) |
|
|
IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_PPCR1_SSI_PINS_1)
|
|
);
|
|
imx_audmux_v1_configure_port(MX27_AUDMUX_PPCR1_SSI_PINS_1,
|
|
IMX_AUDMUX_V1_PCR_SYN |
|
|
IMX_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");
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int __devexit mx27vis_aic32x4_remove(struct platform_device *pdev)
|
|
{
|
|
snd_soc_unregister_card(&mx27vis_aic32x4);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct platform_driver mx27vis_aic32x4_audio_driver = {
|
|
.driver = {
|
|
.name = "mx27vis",
|
|
.owner = THIS_MODULE,
|
|
},
|
|
.probe = mx27vis_aic32x4_probe,
|
|
.remove = __devexit_p(mx27vis_aic32x4_remove),
|
|
};
|
|
|
|
module_platform_driver(mx27vis_aic32x4_audio_driver);
|
|
|
|
MODULE_AUTHOR("Javier Martin <javier.martin@vista-silicon.com>");
|
|
MODULE_DESCRIPTION("ALSA SoC AIC32X4 mx27 visstrim");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_ALIAS("platform:mx27vis");
|