150 lines
3.6 KiB
C
150 lines
3.6 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* ALSA SoC CQ0093 Voice Codec Driver for DaVinci platforms
|
|
*
|
|
* Copyright (C) 2010 Texas Instruments, Inc
|
|
*
|
|
* Author: Miguel Aguilar <miguel.aguilar@ridgerun.com>
|
|
*/
|
|
#include <linux/module.h>
|
|
#include <linux/moduleparam.h>
|
|
#include <linux/init.h>
|
|
#include <linux/io.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/pm.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/device.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/clk.h>
|
|
#include <linux/mfd/davinci_voicecodec.h>
|
|
#include <linux/spi/spi.h>
|
|
|
|
#include <sound/core.h>
|
|
#include <sound/pcm.h>
|
|
#include <sound/pcm_params.h>
|
|
#include <sound/soc.h>
|
|
#include <sound/initval.h>
|
|
|
|
static const struct snd_kcontrol_new cq93vc_snd_controls[] = {
|
|
SOC_SINGLE("PGA Capture Volume", DAVINCI_VC_REG05, 0, 0x03, 0),
|
|
SOC_SINGLE("Mono DAC Playback Volume", DAVINCI_VC_REG09, 0, 0x3f, 0),
|
|
};
|
|
|
|
static int cq93vc_mute(struct snd_soc_dai *dai, int mute, int direction)
|
|
{
|
|
struct snd_soc_component *component = dai->component;
|
|
u8 reg;
|
|
|
|
if (mute)
|
|
reg = DAVINCI_VC_REG09_MUTE;
|
|
else
|
|
reg = 0;
|
|
|
|
snd_soc_component_update_bits(component, DAVINCI_VC_REG09, DAVINCI_VC_REG09_MUTE,
|
|
reg);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int cq93vc_set_dai_sysclk(struct snd_soc_dai *codec_dai,
|
|
int clk_id, unsigned int freq, int dir)
|
|
{
|
|
switch (freq) {
|
|
case 22579200:
|
|
case 27000000:
|
|
case 33868800:
|
|
return 0;
|
|
}
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int cq93vc_set_bias_level(struct snd_soc_component *component,
|
|
enum snd_soc_bias_level level)
|
|
{
|
|
switch (level) {
|
|
case SND_SOC_BIAS_ON:
|
|
snd_soc_component_write(component, DAVINCI_VC_REG12,
|
|
DAVINCI_VC_REG12_POWER_ALL_ON);
|
|
break;
|
|
case SND_SOC_BIAS_PREPARE:
|
|
break;
|
|
case SND_SOC_BIAS_STANDBY:
|
|
snd_soc_component_write(component, DAVINCI_VC_REG12,
|
|
DAVINCI_VC_REG12_POWER_ALL_OFF);
|
|
break;
|
|
case SND_SOC_BIAS_OFF:
|
|
/* force all power off */
|
|
snd_soc_component_write(component, DAVINCI_VC_REG12,
|
|
DAVINCI_VC_REG12_POWER_ALL_OFF);
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define CQ93VC_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000)
|
|
#define CQ93VC_FORMATS (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE)
|
|
|
|
static const struct snd_soc_dai_ops cq93vc_dai_ops = {
|
|
.mute_stream = cq93vc_mute,
|
|
.set_sysclk = cq93vc_set_dai_sysclk,
|
|
.no_capture_mute = 1,
|
|
};
|
|
|
|
static struct snd_soc_dai_driver cq93vc_dai = {
|
|
.name = "cq93vc-hifi",
|
|
.playback = {
|
|
.stream_name = "Playback",
|
|
.channels_min = 1,
|
|
.channels_max = 2,
|
|
.rates = CQ93VC_RATES,
|
|
.formats = CQ93VC_FORMATS,},
|
|
.capture = {
|
|
.stream_name = "Capture",
|
|
.channels_min = 1,
|
|
.channels_max = 2,
|
|
.rates = CQ93VC_RATES,
|
|
.formats = CQ93VC_FORMATS,},
|
|
.ops = &cq93vc_dai_ops,
|
|
};
|
|
|
|
static int cq93vc_probe(struct snd_soc_component *component)
|
|
{
|
|
struct davinci_vc *davinci_vc = component->dev->platform_data;
|
|
|
|
snd_soc_component_init_regmap(component, davinci_vc->regmap);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct snd_soc_component_driver soc_component_dev_cq93vc = {
|
|
.set_bias_level = cq93vc_set_bias_level,
|
|
.probe = cq93vc_probe,
|
|
.controls = cq93vc_snd_controls,
|
|
.num_controls = ARRAY_SIZE(cq93vc_snd_controls),
|
|
.idle_bias_on = 1,
|
|
.use_pmdown_time = 1,
|
|
.endianness = 1,
|
|
};
|
|
|
|
static int cq93vc_platform_probe(struct platform_device *pdev)
|
|
{
|
|
return devm_snd_soc_register_component(&pdev->dev,
|
|
&soc_component_dev_cq93vc, &cq93vc_dai, 1);
|
|
}
|
|
|
|
static struct platform_driver cq93vc_codec_driver = {
|
|
.driver = {
|
|
.name = "cq93vc-codec",
|
|
},
|
|
|
|
.probe = cq93vc_platform_probe,
|
|
};
|
|
|
|
module_platform_driver(cq93vc_codec_driver);
|
|
|
|
MODULE_DESCRIPTION("Texas Instruments DaVinci ASoC CQ0093 Voice Codec Driver");
|
|
MODULE_AUTHOR("Miguel Aguilar");
|
|
MODULE_LICENSE("GPL");
|