mirror of https://gitee.com/openkylin/linux.git
sound: ASoC codec: SSM2602 audio codec driver
[Some checkpatch fixups done by Mark Brown.] Signed-off-by: Cliff Cai <cliff.cai@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Cliff Cai
Jaroslav Kysela
parent
41759c2eab
commit
b7138212a8
|
|
@ -4,6 +4,7 @@ config SND_SOC_ALL_CODECS
|
|||
select SPI
|
||||
select SPI_MASTER
|
||||
select SND_SOC_AK4535
|
||||
select SND_SOC_SSM2602
|
||||
select SND_SOC_UDA1380
|
||||
select SND_SOC_WM8510
|
||||
select SND_SOC_WM8580
|
||||
|
|
@ -93,3 +94,6 @@ config SND_SOC_TLV320AIC26
|
|||
config SND_SOC_TLV320AIC3X
|
||||
tristate
|
||||
depends on I2C
|
||||
|
||||
config SND_SOC_SSM2602
|
||||
tristate
|
||||
|
|
|
|||
|
|
@ -15,6 +15,7 @@ snd-soc-wm9713-objs := wm9713.o
|
|||
snd-soc-cs4270-objs := cs4270.o
|
||||
snd-soc-tlv320aic26-objs := tlv320aic26.o
|
||||
snd-soc-tlv320aic3x-objs := tlv320aic3x.o
|
||||
snd-soc-ssm2602-objs := ssm2602.o
|
||||
|
||||
obj-$(CONFIG_SND_SOC_AC97_CODEC) += snd-soc-ac97.o
|
||||
obj-$(CONFIG_SND_SOC_AD1980) += snd-soc-ad1980.o
|
||||
|
|
@ -33,3 +34,4 @@ obj-$(CONFIG_SND_SOC_WM9713) += snd-soc-wm9713.o
|
|||
obj-$(CONFIG_SND_SOC_CS4270) += snd-soc-cs4270.o
|
||||
obj-$(CONFIG_SND_SOC_TLV320AIC26) += snd-soc-tlv320aic26.o
|
||||
obj-$(CONFIG_SND_SOC_TLV320AIC3X) += snd-soc-tlv320aic3x.o
|
||||
obj-$(CONFIG_SND_SOC_SSM2602) += snd-soc-ssm2602.o
|
||||
|
|
|
|||
|
|
@ -0,0 +1,776 @@
|
|||
/*
|
||||
* File: sound/soc/codecs/ssm2602.c
|
||||
* Author: Cliff Cai <Cliff.Cai@analog.com>
|
||||
*
|
||||
* Created: Tue June 06 2008
|
||||
* Description: Driver for ssm2602 sound chip
|
||||
*
|
||||
* Modified:
|
||||
* Copyright 2008 Analog Devices Inc.
|
||||
*
|
||||
* Bugs: Enter bugs at http://blackfin.uclinux.org/
|
||||
*
|
||||
* 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, see the file COPYING, or write
|
||||
* to the Free Software Foundation, Inc.,
|
||||
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#include <linux/module.h>
|
||||
#include <linux/moduleparam.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/pm.h>
|
||||
#include <linux/i2c.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <sound/core.h>
|
||||
#include <sound/pcm.h>
|
||||
#include <sound/pcm_params.h>
|
||||
#include <sound/soc.h>
|
||||
#include <sound/soc-dapm.h>
|
||||
#include <sound/initval.h>
|
||||
|
||||
#include "ssm2602.h"
|
||||
|
||||
#define AUDIO_NAME "ssm2602"
|
||||
#define SSM2602_VERSION "0.1"
|
||||
|
||||
struct snd_soc_codec_device soc_codec_dev_ssm2602;
|
||||
|
||||
/* codec private data */
|
||||
struct ssm2602_priv {
|
||||
unsigned int sysclk;
|
||||
struct snd_pcm_substream *master_substream;
|
||||
struct snd_pcm_substream *slave_substream;
|
||||
};
|
||||
|
||||
/*
|
||||
* ssm2602 register cache
|
||||
* We can't read the ssm2602 register space when we are
|
||||
* using 2 wire for device control, so we cache them instead.
|
||||
* There is no point in caching the reset register
|
||||
*/
|
||||
static const u16 ssm2602_reg[SSM2602_CACHEREGNUM] = {
|
||||
0x0017, 0x0017, 0x0079, 0x0079,
|
||||
0x0000, 0x0000, 0x0000, 0x000a,
|
||||
0x0000, 0x0000
|
||||
};
|
||||
|
||||
/*
|
||||
* read ssm2602 register cache
|
||||
*/
|
||||
static inline unsigned int ssm2602_read_reg_cache(struct snd_soc_codec *codec,
|
||||
unsigned int reg)
|
||||
{
|
||||
u16 *cache = codec->reg_cache;
|
||||
if (reg == SSM2602_RESET)
|
||||
return 0;
|
||||
if (reg >= SSM2602_CACHEREGNUM)
|
||||
return -1;
|
||||
return cache[reg];
|
||||
}
|
||||
|
||||
/*
|
||||
* write ssm2602 register cache
|
||||
*/
|
||||
static inline void ssm2602_write_reg_cache(struct snd_soc_codec *codec,
|
||||
u16 reg, unsigned int value)
|
||||
{
|
||||
u16 *cache = codec->reg_cache;
|
||||
if (reg >= SSM2602_CACHEREGNUM)
|
||||
return;
|
||||
cache[reg] = value;
|
||||
}
|
||||
|
||||
/*
|
||||
* write to the ssm2602 register space
|
||||
*/
|
||||
static int ssm2602_write(struct snd_soc_codec *codec, unsigned int reg,
|
||||
unsigned int value)
|
||||
{
|
||||
u8 data[2];
|
||||
|
||||
/* data is
|
||||
* D15..D9 ssm2602 register offset
|
||||
* D8...D0 register data
|
||||
*/
|
||||
data[0] = (reg << 1) | ((value >> 8) & 0x0001);
|
||||
data[1] = value & 0x00ff;
|
||||
|
||||
ssm2602_write_reg_cache(codec, reg, value);
|
||||
if (codec->hw_write(codec->control_data, data, 2) == 2)
|
||||
return 0;
|
||||
else
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
#define ssm2602_reset(c) ssm2602_write(c, SSM2602_RESET, 0)
|
||||
|
||||
/*Appending several "None"s just for OSS mixer use*/
|
||||
static const char *ssm2602_input_select[] = {
|
||||
"Line", "Mic", "None", "None", "None",
|
||||
"None", "None", "None",
|
||||
};
|
||||
|
||||
static const char *ssm2602_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"};
|
||||
|
||||
static const struct soc_enum ssm2602_enum[] = {
|
||||
SOC_ENUM_SINGLE(SSM2602_APANA, 2, 2, ssm2602_input_select),
|
||||
SOC_ENUM_SINGLE(SSM2602_APDIGI, 1, 4, ssm2602_deemph),
|
||||
};
|
||||
|
||||
static const struct snd_kcontrol_new ssm2602_snd_controls[] = {
|
||||
|
||||
SOC_DOUBLE_R("Master Playback Volume", SSM2602_LOUT1V, SSM2602_ROUT1V,
|
||||
0, 127, 0),
|
||||
SOC_DOUBLE_R("Master Playback ZC Switch", SSM2602_LOUT1V, SSM2602_ROUT1V,
|
||||
7, 1, 0),
|
||||
|
||||
SOC_DOUBLE_R("Capture Volume", SSM2602_LINVOL, SSM2602_RINVOL, 0, 31, 0),
|
||||
SOC_DOUBLE_R("Capture Switch", SSM2602_LINVOL, SSM2602_RINVOL, 7, 1, 1),
|
||||
|
||||
SOC_SINGLE("Mic Boost (+20dB)", SSM2602_APANA, 0, 1, 0),
|
||||
SOC_SINGLE("Mic Switch", SSM2602_APANA, 1, 1, 1),
|
||||
|
||||
SOC_SINGLE("Sidetone Playback Volume", SSM2602_APANA, 6, 3, 1),
|
||||
|
||||
SOC_SINGLE("ADC High Pass Filter Switch", SSM2602_APDIGI, 0, 1, 1),
|
||||
SOC_SINGLE("Store DC Offset Switch", SSM2602_APDIGI, 4, 1, 0),
|
||||
|
||||
SOC_ENUM("Capture Source", ssm2602_enum[0]),
|
||||
|
||||
SOC_ENUM("Playback De-emphasis", ssm2602_enum[1]),
|
||||
};
|
||||
|
||||
/* add non dapm controls */
|
||||
static int ssm2602_add_controls(struct snd_soc_codec *codec)
|
||||
{
|
||||
int err, i;
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(ssm2602_snd_controls); i++) {
|
||||
err = snd_ctl_add(codec->card,
|
||||
snd_soc_cnew(&ssm2602_snd_controls[i], codec, NULL));
|
||||
if (err < 0)
|
||||
return err;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Output Mixer */
|
||||
static const struct snd_kcontrol_new ssm2602_output_mixer_controls[] = {
|
||||
SOC_DAPM_SINGLE("Line Bypass Switch", SSM2602_APANA, 3, 1, 0),
|
||||
SOC_DAPM_SINGLE("Mic Sidetone Switch", SSM2602_APANA, 5, 1, 0),
|
||||
SOC_DAPM_SINGLE("HiFi Playback Switch", SSM2602_APANA, 4, 1, 0),
|
||||
};
|
||||
|
||||
/* Input mux */
|
||||
static const struct snd_kcontrol_new ssm2602_input_mux_controls =
|
||||
SOC_DAPM_ENUM("Input Select", ssm2602_enum[0]);
|
||||
|
||||
static const struct snd_soc_dapm_widget ssm2602_dapm_widgets[] = {
|
||||
SND_SOC_DAPM_MIXER("Output Mixer", SSM2602_PWR, 4, 1,
|
||||
&ssm2602_output_mixer_controls[0],
|
||||
ARRAY_SIZE(ssm2602_output_mixer_controls)),
|
||||
SND_SOC_DAPM_DAC("DAC", "HiFi Playback", SSM2602_PWR, 3, 1),
|
||||
SND_SOC_DAPM_OUTPUT("LOUT"),
|
||||
SND_SOC_DAPM_OUTPUT("LHPOUT"),
|
||||
SND_SOC_DAPM_OUTPUT("ROUT"),
|
||||
SND_SOC_DAPM_OUTPUT("RHPOUT"),
|
||||
SND_SOC_DAPM_ADC("ADC", "HiFi Capture", SSM2602_PWR, 2, 1),
|
||||
SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &ssm2602_input_mux_controls),
|
||||
SND_SOC_DAPM_PGA("Line Input", SSM2602_PWR, 0, 1, NULL, 0),
|
||||
SND_SOC_DAPM_MICBIAS("Mic Bias", SSM2602_PWR, 1, 1),
|
||||
SND_SOC_DAPM_INPUT("MICIN"),
|
||||
SND_SOC_DAPM_INPUT("RLINEIN"),
|
||||
SND_SOC_DAPM_INPUT("LLINEIN"),
|
||||
};
|
||||
|
||||
static const struct snd_soc_dapm_route audio_conn[] = {
|
||||
/* output mixer */
|
||||
{"Output Mixer", "Line Bypass Switch", "Line Input"},
|
||||
{"Output Mixer", "HiFi Playback Switch", "DAC"},
|
||||
{"Output Mixer", "Mic Sidetone Switch", "Mic Bias"},
|
||||
|
||||
/* outputs */
|
||||
{"RHPOUT", NULL, "Output Mixer"},
|
||||
{"ROUT", NULL, "Output Mixer"},
|
||||
{"LHPOUT", NULL, "Output Mixer"},
|
||||
{"LOUT", NULL, "Output Mixer"},
|
||||
|
||||
/* input mux */
|
||||
{"Input Mux", "Line", "Line Input"},
|
||||
{"Input Mux", "Mic", "Mic Bias"},
|
||||
{"ADC", NULL, "Input Mux"},
|
||||
|
||||
/* inputs */
|
||||
{"Line Input", NULL, "LLINEIN"},
|
||||
{"Line Input", NULL, "RLINEIN"},
|
||||
{"Mic Bias", NULL, "MICIN"},
|
||||
};
|
||||
|
||||
static int ssm2602_add_widgets(struct snd_soc_codec *codec)
|
||||
{
|
||||
snd_soc_dapm_new_controls(codec, ssm2602_dapm_widgets,
|
||||
ARRAY_SIZE(ssm2602_dapm_widgets));
|
||||
|
||||
snd_soc_dapm_add_routes(codec, audio_conn, ARRAY_SIZE(audio_conn));
|
||||
|
||||
snd_soc_dapm_new_widgets(codec);
|
||||
return 0;
|
||||
}
|
||||
|
||||
struct _coeff_div {
|
||||
u32 mclk;
|
||||
u32 rate;
|
||||
u16 fs;
|
||||
u8 sr:4;
|
||||
u8 bosr:1;
|
||||
u8 usb:1;
|
||||
};
|
||||
|
||||
/* codec mclk clock divider coefficients */
|
||||
static const struct _coeff_div coeff_div[] = {
|
||||
/* 48k */
|
||||
{12288000, 48000, 256, 0x0, 0x0, 0x0},
|
||||
{18432000, 48000, 384, 0x0, 0x1, 0x0},
|
||||
{12000000, 48000, 250, 0x0, 0x0, 0x1},
|
||||
|
||||
/* 32k */
|
||||
{12288000, 32000, 384, 0x6, 0x0, 0x0},
|
||||
{18432000, 32000, 576, 0x6, 0x1, 0x0},
|
||||
{12000000, 32000, 375, 0x6, 0x0, 0x1},
|
||||
|
||||
/* 8k */
|
||||
{12288000, 8000, 1536, 0x3, 0x0, 0x0},
|
||||
{18432000, 8000, 2304, 0x3, 0x1, 0x0},
|
||||
{11289600, 8000, 1408, 0xb, 0x0, 0x0},
|
||||
{16934400, 8000, 2112, 0xb, 0x1, 0x0},
|
||||
{12000000, 8000, 1500, 0x3, 0x0, 0x1},
|
||||
|
||||
/* 96k */
|
||||
{12288000, 96000, 128, 0x7, 0x0, 0x0},
|
||||
{18432000, 96000, 192, 0x7, 0x1, 0x0},
|
||||
{12000000, 96000, 125, 0x7, 0x0, 0x1},
|
||||
|
||||
/* 44.1k */
|
||||
{11289600, 44100, 256, 0x8, 0x0, 0x0},
|
||||
{16934400, 44100, 384, 0x8, 0x1, 0x0},
|
||||
{12000000, 44100, 272, 0x8, 0x1, 0x1},
|
||||
|
||||
/* 88.2k */
|
||||
{11289600, 88200, 128, 0xf, 0x0, 0x0},
|
||||
{16934400, 88200, 192, 0xf, 0x1, 0x0},
|
||||
{12000000, 88200, 136, 0xf, 0x1, 0x1},
|
||||
};
|
||||
|
||||
static inline int get_coeff(int mclk, int rate)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
|
||||
if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
|
||||
return i;
|
||||
}
|
||||
return i;
|
||||
}
|
||||
|
||||
static int ssm2602_hw_params(struct snd_pcm_substream *substream,
|
||||
struct snd_pcm_hw_params *params)
|
||||
{
|
||||
u16 srate;
|
||||
struct snd_soc_pcm_runtime *rtd = substream->private_data;
|
||||
struct snd_soc_device *socdev = rtd->socdev;
|
||||
struct snd_soc_codec *codec = socdev->codec;
|
||||
struct ssm2602_priv *ssm2602 = codec->private_data;
|
||||
u16 iface = ssm2602_read_reg_cache(codec, SSM2602_IFACE) & 0xfff3;
|
||||
int i = get_coeff(ssm2602->sysclk, params_rate(params));
|
||||
|
||||
/*no match is found*/
|
||||
if (i == ARRAY_SIZE(coeff_div))
|
||||
return -EINVAL;
|
||||
|
||||
srate = (coeff_div[i].sr << 2) |
|
||||
(coeff_div[i].bosr << 1) | coeff_div[i].usb;
|
||||
|
||||
ssm2602_write(codec, SSM2602_ACTIVE, 0);
|
||||
ssm2602_write(codec, SSM2602_SRATE, srate);
|
||||
|
||||
/* bit size */
|
||||
switch (params_format(params)) {
|
||||
case SNDRV_PCM_FORMAT_S16_LE:
|
||||
break;
|
||||
case SNDRV_PCM_FORMAT_S20_3LE:
|
||||
iface |= 0x0004;
|
||||
break;
|
||||
case SNDRV_PCM_FORMAT_S24_LE:
|
||||
iface |= 0x0008;
|
||||
break;
|
||||
case SNDRV_PCM_FORMAT_S32_LE:
|
||||
iface |= 0x000c;
|
||||
break;
|
||||
}
|
||||
ssm2602_write(codec, SSM2602_IFACE, iface);
|
||||
ssm2602_write(codec, SSM2602_ACTIVE, ACTIVE_ACTIVATE_CODEC);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int ssm2602_startup(struct snd_pcm_substream *substream)
|
||||
{
|
||||
struct snd_soc_pcm_runtime *rtd = substream->private_data;
|
||||
struct snd_soc_device *socdev = rtd->socdev;
|
||||
struct snd_soc_codec *codec = socdev->codec;
|
||||
struct ssm2602_priv *ssm2602 = codec->private_data;
|
||||
struct snd_pcm_runtime *master_runtime;
|
||||
|
||||
/* The DAI has shared clocks so if we already have a playback or
|
||||
* capture going then constrain this substream to match it.
|
||||
*/
|
||||
if (ssm2602->master_substream) {
|
||||
master_runtime = ssm2602->master_substream->runtime;
|
||||
snd_pcm_hw_constraint_minmax(substream->runtime,
|
||||
SNDRV_PCM_HW_PARAM_RATE,
|
||||
master_runtime->rate,
|
||||
master_runtime->rate);
|
||||
|
||||
snd_pcm_hw_constraint_minmax(substream->runtime,
|
||||
SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
|
||||
master_runtime->sample_bits,
|
||||
master_runtime->sample_bits);
|
||||
|
||||
ssm2602->slave_substream = substream;
|
||||
} else
|
||||
ssm2602->master_substream = substream;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int ssm2602_pcm_prepare(struct snd_pcm_substream *substream)
|
||||
{
|
||||
struct snd_soc_pcm_runtime *rtd = substream->private_data;
|
||||
struct snd_soc_device *socdev = rtd->socdev;
|
||||
struct snd_soc_codec *codec = socdev->codec;
|
||||
/* set active */
|
||||
ssm2602_write(codec, SSM2602_ACTIVE, ACTIVE_ACTIVATE_CODEC);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void ssm2602_shutdown(struct snd_pcm_substream *substream)
|
||||
{
|
||||
struct snd_soc_pcm_runtime *rtd = substream->private_data;
|
||||
struct snd_soc_device *socdev = rtd->socdev;
|
||||
struct snd_soc_codec *codec = socdev->codec;
|
||||
/* deactivate */
|
||||
if (!codec->active)
|
||||
ssm2602_write(codec, SSM2602_ACTIVE, 0);
|
||||
}
|
||||
|
||||
static int ssm2602_mute(struct snd_soc_dai *dai, int mute)
|
||||
{
|
||||
struct snd_soc_codec *codec = dai->codec;
|
||||
u16 mute_reg = ssm2602_read_reg_cache(codec, SSM2602_APDIGI) & ~APDIGI_ENABLE_DAC_MUTE;
|
||||
if (mute)
|
||||
ssm2602_write(codec, SSM2602_APDIGI,
|
||||
mute_reg | APDIGI_ENABLE_DAC_MUTE);
|
||||
else
|
||||
ssm2602_write(codec, SSM2602_APDIGI, mute_reg);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int ssm2602_set_dai_sysclk(struct snd_soc_dai *codec_dai,
|
||||
int clk_id, unsigned int freq, int dir)
|
||||
{
|
||||
struct snd_soc_codec *codec = codec_dai->codec;
|
||||
struct ssm2602_priv *ssm2602 = codec->private_data;
|
||||
switch (freq) {
|
||||
case 11289600:
|
||||
case 12000000:
|
||||
case 12288000:
|
||||
case 16934400:
|
||||
case 18432000:
|
||||
ssm2602->sysclk = freq;
|
||||
return 0;
|
||||
}
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
static int ssm2602_set_dai_fmt(struct snd_soc_dai *codec_dai,
|
||||
unsigned int fmt)
|
||||
{
|
||||
struct snd_soc_codec *codec = codec_dai->codec;
|
||||
u16 iface = 0;
|
||||
|
||||
/* set master/slave audio interface */
|
||||
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
|
||||
case SND_SOC_DAIFMT_CBM_CFM:
|
||||
iface |= 0x0040;
|
||||
break;
|
||||
case SND_SOC_DAIFMT_CBS_CFS:
|
||||
break;
|
||||
default:
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/* interface format */
|
||||
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
|
||||
case SND_SOC_DAIFMT_I2S:
|
||||
iface |= 0x0002;
|
||||
break;
|
||||
case SND_SOC_DAIFMT_RIGHT_J:
|
||||
break;
|
||||
case SND_SOC_DAIFMT_LEFT_J:
|
||||
iface |= 0x0001;
|
||||
break;
|
||||
case SND_SOC_DAIFMT_DSP_A:
|
||||
iface |= 0x0003;
|
||||
break;
|
||||
case SND_SOC_DAIFMT_DSP_B:
|
||||
iface |= 0x0013;
|
||||
break;
|
||||
default:
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/* clock inversion */
|
||||
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
|
||||
case SND_SOC_DAIFMT_NB_NF:
|
||||
break;
|
||||
case SND_SOC_DAIFMT_IB_IF:
|
||||
iface |= 0x0090;
|
||||
break;
|
||||
case SND_SOC_DAIFMT_IB_NF:
|
||||
iface |= 0x0080;
|
||||
break;
|
||||
case SND_SOC_DAIFMT_NB_IF:
|
||||
iface |= 0x0010;
|
||||
break;
|
||||
default:
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/* set iface */
|
||||
ssm2602_write(codec, SSM2602_IFACE, iface);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int ssm2602_set_bias_level(struct snd_soc_codec *codec,
|
||||
enum snd_soc_bias_level level)
|
||||
{
|
||||
u16 reg = ssm2602_read_reg_cache(codec, SSM2602_PWR) & 0xff7f;
|
||||
|
||||
switch (level) {
|
||||
case SND_SOC_BIAS_ON:
|
||||
/* vref/mid, osc on, dac unmute */
|
||||
ssm2602_write(codec, SSM2602_PWR, reg);
|
||||
break;
|
||||
case SND_SOC_BIAS_PREPARE:
|
||||
break;
|
||||
case SND_SOC_BIAS_STANDBY:
|
||||
/* everything off except vref/vmid, */
|
||||
ssm2602_write(codec, SSM2602_PWR, reg | PWR_CLK_OUT_PDN);
|
||||
break;
|
||||
case SND_SOC_BIAS_OFF:
|
||||
/* everything off, dac mute, inactive */
|
||||
ssm2602_write(codec, SSM2602_ACTIVE, 0);
|
||||
ssm2602_write(codec, SSM2602_PWR, 0xffff);
|
||||
break;
|
||||
|
||||
}
|
||||
codec->bias_level = level;
|
||||
return 0;
|
||||
}
|
||||
|
||||
#define SSM2602_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
|
||||
SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
|
||||
SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\
|
||||
SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\
|
||||
SNDRV_PCM_RATE_96000)
|
||||
|
||||
struct snd_soc_dai ssm2602_dai = {
|
||||
.name = "SSM2602",
|
||||
.playback = {
|
||||
.stream_name = "Playback",
|
||||
.channels_min = 2,
|
||||
.channels_max = 2,
|
||||
.rates = SSM2602_RATES,
|
||||
.formats = SNDRV_PCM_FMTBIT_S32_LE,},
|
||||
.capture = {
|
||||
.stream_name = "Capture",
|
||||
.channels_min = 2,
|
||||
.channels_max = 2,
|
||||
.rates = SSM2602_RATES,
|
||||
.formats = SNDRV_PCM_FMTBIT_S32_LE,},
|
||||
.ops = {
|
||||
.startup = ssm2602_startup,
|
||||
.prepare = ssm2602_pcm_prepare,
|
||||
.hw_params = ssm2602_hw_params,
|
||||
.shutdown = ssm2602_shutdown,
|
||||
},
|
||||
.dai_ops = {
|
||||
.digital_mute = ssm2602_mute,
|
||||
.set_sysclk = ssm2602_set_dai_sysclk,
|
||||
.set_fmt = ssm2602_set_dai_fmt,
|
||||
}
|
||||
};
|
||||
EXPORT_SYMBOL_GPL(ssm2602_dai);
|
||||
|
||||
static int ssm2602_suspend(struct platform_device *pdev, pm_message_t state)
|
||||
{
|
||||
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
|
||||
struct snd_soc_codec *codec = socdev->codec;
|
||||
|
||||
ssm2602_set_bias_level(codec, SND_SOC_BIAS_OFF);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int ssm2602_resume(struct platform_device *pdev)
|
||||
{
|
||||
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
|
||||
struct snd_soc_codec *codec = socdev->codec;
|
||||
int i;
|
||||
u8 data[2];
|
||||
u16 *cache = codec->reg_cache;
|
||||
|
||||
/* Sync reg_cache with the hardware */
|
||||
for (i = 0; i < ARRAY_SIZE(ssm2602_reg); i++) {
|
||||
data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001);
|
||||
data[1] = cache[i] & 0x00ff;
|
||||
codec->hw_write(codec->control_data, data, 2);
|
||||
}
|
||||
ssm2602_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
|
||||
ssm2602_set_bias_level(codec, codec->suspend_bias_level);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* initialise the ssm2602 driver
|
||||
* register the mixer and dsp interfaces with the kernel
|
||||
*/
|
||||
static int ssm2602_init(struct snd_soc_device *socdev)
|
||||
{
|
||||
struct snd_soc_codec *codec = socdev->codec;
|
||||
int reg, ret = 0;
|
||||
|
||||
codec->name = "SSM2602";
|
||||
codec->owner = THIS_MODULE;
|
||||
codec->read = ssm2602_read_reg_cache;
|
||||
codec->write = ssm2602_write;
|
||||
codec->set_bias_level = ssm2602_set_bias_level;
|
||||
codec->dai = &ssm2602_dai;
|
||||
codec->num_dai = 1;
|
||||
codec->reg_cache_size = sizeof(ssm2602_reg);
|
||||
codec->reg_cache = kmemdup(ssm2602_reg, sizeof(ssm2602_reg),
|
||||
GFP_KERNEL);
|
||||
if (codec->reg_cache == NULL)
|
||||
return -ENOMEM;
|
||||
|
||||
ssm2602_reset(codec);
|
||||
|
||||
/* register pcms */
|
||||
ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
|
||||
if (ret < 0) {
|
||||
pr_err("ssm2602: failed to create pcms\n");
|
||||
goto pcm_err;
|
||||
}
|
||||
/*power on device*/
|
||||
ssm2602_write(codec, SSM2602_ACTIVE, 0);
|
||||
/* set the update bits */
|
||||
reg = ssm2602_read_reg_cache(codec, SSM2602_LINVOL);
|
||||
ssm2602_write(codec, SSM2602_LINVOL, reg | LINVOL_LRIN_BOTH);
|
||||
reg = ssm2602_read_reg_cache(codec, SSM2602_RINVOL);
|
||||
ssm2602_write(codec, SSM2602_RINVOL, reg | RINVOL_RLIN_BOTH);
|
||||
reg = ssm2602_read_reg_cache(codec, SSM2602_LOUT1V);
|
||||
ssm2602_write(codec, SSM2602_LOUT1V, reg | LOUT1V_LRHP_BOTH);
|
||||
reg = ssm2602_read_reg_cache(codec, SSM2602_ROUT1V);
|
||||
ssm2602_write(codec, SSM2602_ROUT1V, reg | ROUT1V_RLHP_BOTH);
|
||||
/*select Line in as default input*/
|
||||
ssm2602_write(codec, SSM2602_APANA,
|
||||
APANA_ENABLE_MIC_BOOST2 | APANA_SELECT_DAC |
|
||||
APANA_ENABLE_MIC_BOOST);
|
||||
ssm2602_write(codec, SSM2602_PWR, 0);
|
||||
|
||||
ssm2602_add_controls(codec);
|
||||
ssm2602_add_widgets(codec);
|
||||
ret = snd_soc_register_card(socdev);
|
||||
if (ret < 0) {
|
||||
pr_err("ssm2602: failed to register card\n");
|
||||
goto card_err;
|
||||
}
|
||||
|
||||
return ret;
|
||||
|
||||
card_err:
|
||||
snd_soc_free_pcms(socdev);
|
||||
snd_soc_dapm_free(socdev);
|
||||
pcm_err:
|
||||
kfree(codec->reg_cache);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static struct snd_soc_device *ssm2602_socdev;
|
||||
|
||||
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
|
||||
/*
|
||||
* ssm2602 2 wire address is determined by GPIO5
|
||||
* state during powerup.
|
||||
* low = 0x1a
|
||||
* high = 0x1b
|
||||
*/
|
||||
static int ssm2602_i2c_probe(struct i2c_client *i2c,
|
||||
const struct i2c_device_id *id)
|
||||
{
|
||||
struct snd_soc_device *socdev = ssm2602_socdev;
|
||||
struct snd_soc_codec *codec = socdev->codec;
|
||||
int ret;
|
||||
|
||||
i2c_set_clientdata(i2c, codec);
|
||||
codec->control_data = i2c;
|
||||
|
||||
ret = ssm2602_init(socdev);
|
||||
if (ret < 0)
|
||||
pr_err("failed to initialise SSM2602\n");
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int ssm2602_i2c_remove(struct i2c_client *client)
|
||||
{
|
||||
struct snd_soc_codec *codec = i2c_get_clientdata(client);
|
||||
kfree(codec->reg_cache);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct i2c_device_id ssm2602_i2c_id[] = {
|
||||
{ "ssm2602", 0 },
|
||||
{ }
|
||||
};
|
||||
MODULE_DEVICE_TABLE(i2c, ssm2602_i2c_id);
|
||||
/* corgi i2c codec control layer */
|
||||
static struct i2c_driver ssm2602_i2c_driver = {
|
||||
.driver = {
|
||||
.name = "SSM2602 I2C Codec",
|
||||
.owner = THIS_MODULE,
|
||||
},
|
||||
.probe = ssm2602_i2c_probe,
|
||||
.remove = ssm2602_i2c_remove,
|
||||
.id_table = ssm2602_i2c_id,
|
||||
};
|
||||
|
||||
static int ssm2602_add_i2c_device(struct platform_device *pdev,
|
||||
const struct ssm2602_setup_data *setup)
|
||||
{
|
||||
struct i2c_board_info info;
|
||||
struct i2c_adapter *adapter;
|
||||
struct i2c_client *client;
|
||||
int ret;
|
||||
|
||||
ret = i2c_add_driver(&ssm2602_i2c_driver);
|
||||
if (ret != 0) {
|
||||
dev_err(&pdev->dev, "can't add i2c driver\n");
|
||||
return ret;
|
||||
}
|
||||
memset(&info, 0, sizeof(struct i2c_board_info));
|
||||
info.addr = setup->i2c_address;
|
||||
strlcpy(info.type, "ssm2602", I2C_NAME_SIZE);
|
||||
adapter = i2c_get_adapter(setup->i2c_bus);
|
||||
if (!adapter) {
|
||||
dev_err(&pdev->dev, "can't get i2c adapter %d\n",
|
||||
setup->i2c_bus);
|
||||
goto err_driver;
|
||||
}
|
||||
client = i2c_new_device(adapter, &info);
|
||||
i2c_put_adapter(adapter);
|
||||
if (!client) {
|
||||
dev_err(&pdev->dev, "can't add i2c device at 0x%x\n",
|
||||
(unsigned int)info.addr);
|
||||
goto err_driver;
|
||||
}
|
||||
return 0;
|
||||
err_driver:
|
||||
i2c_del_driver(&ssm2602_i2c_driver);
|
||||
return -ENODEV;
|
||||
}
|
||||
#endif
|
||||
|
||||
static int ssm2602_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
|
||||
struct ssm2602_setup_data *setup;
|
||||
struct snd_soc_codec *codec;
|
||||
struct ssm2602_priv *ssm2602;
|
||||
int ret = 0;
|
||||
|
||||
pr_info("ssm2602 Audio Codec %s", SSM2602_VERSION);
|
||||
|
||||
setup = socdev->codec_data;
|
||||
codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
|
||||
if (codec == NULL)
|
||||
return -ENOMEM;
|
||||
|
||||
ssm2602 = kzalloc(sizeof(struct ssm2602_priv), GFP_KERNEL);
|
||||
if (ssm2602 == NULL) {
|
||||
kfree(codec);
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
codec->private_data = ssm2602;
|
||||
socdev->codec = codec;
|
||||
mutex_init(&codec->mutex);
|
||||
INIT_LIST_HEAD(&codec->dapm_widgets);
|
||||
INIT_LIST_HEAD(&codec->dapm_paths);
|
||||
|
||||
ssm2602_socdev = socdev;
|
||||
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
|
||||
if (setup->i2c_address) {
|
||||
codec->hw_write = (hw_write_t)i2c_master_send;
|
||||
ret = ssm2602_add_i2c_device(pdev, setup);
|
||||
}
|
||||
#else
|
||||
/* other interfaces */
|
||||
#endif
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* remove everything here */
|
||||
static int ssm2602_remove(struct platform_device *pdev)
|
||||
{
|
||||
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
|
||||
struct snd_soc_codec *codec = socdev->codec;
|
||||
|
||||
if (codec->control_data)
|
||||
ssm2602_set_bias_level(codec, SND_SOC_BIAS_OFF);
|
||||
|
||||
snd_soc_free_pcms(socdev);
|
||||
snd_soc_dapm_free(socdev);
|
||||
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
|
||||
i2c_unregister_device(codec->control_data);
|
||||
i2c_del_driver(&ssm2602_i2c_driver);
|
||||
#endif
|
||||
kfree(codec->private_data);
|
||||
kfree(codec);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
struct snd_soc_codec_device soc_codec_dev_ssm2602 = {
|
||||
.probe = ssm2602_probe,
|
||||
.remove = ssm2602_remove,
|
||||
.suspend = ssm2602_suspend,
|
||||
.resume = ssm2602_resume,
|
||||
};
|
||||
EXPORT_SYMBOL_GPL(soc_codec_dev_ssm2602);
|
||||
|
||||
MODULE_DESCRIPTION("ASoC ssm2602 driver");
|
||||
MODULE_AUTHOR("Cliff Cai");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
|
@ -0,0 +1,130 @@
|
|||
/*
|
||||
* File: sound/soc/codecs/ssm2602.h
|
||||
* Author: Cliff Cai <Cliff.Cai@analog.com>
|
||||
*
|
||||
* Created: Tue June 06 2008
|
||||
*
|
||||
* Modified:
|
||||
* Copyright 2008 Analog Devices Inc.
|
||||
*
|
||||
* Bugs: Enter bugs at http://blackfin.uclinux.org/
|
||||
*
|
||||
* 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, see the file COPYING, or write
|
||||
* to the Free Software Foundation, Inc.,
|
||||
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#ifndef _SSM2602_H
|
||||
#define _SSM2602_H
|
||||
|
||||
/* SSM2602 Codec Register definitions */
|
||||
|
||||
#define SSM2602_LINVOL 0x00
|
||||
#define SSM2602_RINVOL 0x01
|
||||
#define SSM2602_LOUT1V 0x02
|
||||
#define SSM2602_ROUT1V 0x03
|
||||
#define SSM2602_APANA 0x04
|
||||
#define SSM2602_APDIGI 0x05
|
||||
#define SSM2602_PWR 0x06
|
||||
#define SSM2602_IFACE 0x07
|
||||
#define SSM2602_SRATE 0x08
|
||||
#define SSM2602_ACTIVE 0x09
|
||||
#define SSM2602_RESET 0x0f
|
||||
|
||||
/*SSM2602 Codec Register Field definitions
|
||||
*(Mask value to extract the corresponding Register field)
|
||||
*/
|
||||
|
||||
/*Left ADC Volume Control (SSM2602_REG_LEFT_ADC_VOL)*/
|
||||
#define LINVOL_LIN_VOL 0x01F /* Left Channel PGA Volume control */
|
||||
#define LINVOL_LIN_ENABLE_MUTE 0x080 /* Left Channel Input Mute */
|
||||
#define LINVOL_LRIN_BOTH 0x100 /* Left Channel Line Input Volume update */
|
||||
|
||||
/*Right ADC Volume Control (SSM2602_REG_RIGHT_ADC_VOL)*/
|
||||
#define RINVOL_RIN_VOL 0x01F /* Right Channel PGA Volume control */
|
||||
#define RINVOL_RIN_ENABLE_MUTE 0x080 /* Right Channel Input Mute */
|
||||
#define RINVOL_RLIN_BOTH 0x100 /* Right Channel Line Input Volume update */
|
||||
|
||||
/*Left DAC Volume Control (SSM2602_REG_LEFT_DAC_VOL)*/
|
||||
#define LOUT1V_LHP_VOL 0x07F /* Left Channel Headphone volume control */
|
||||
#define LOUT1V_ENABLE_LZC 0x080 /* Left Channel Zero cross detect enable */
|
||||
#define LOUT1V_LRHP_BOTH 0x100 /* Left Channel Headphone volume update */
|
||||
|
||||
/*Right DAC Volume Control (SSM2602_REG_RIGHT_DAC_VOL)*/
|
||||
#define ROUT1V_RHP_VOL 0x07F /* Right Channel Headphone volume control */
|
||||
#define ROUT1V_ENABLE_RZC 0x080 /* Right Channel Zero cross detect enable */
|
||||
#define ROUT1V_RLHP_BOTH 0x100 /* Right Channel Headphone volume update */
|
||||
|
||||
/*Analogue Audio Path Control (SSM2602_REG_ANALOGUE_PATH)*/
|
||||
#define APANA_ENABLE_MIC_BOOST 0x001 /* Primary Microphone Amplifier gain booster control */
|
||||
#define APANA_ENABLE_MIC_MUTE 0x002 /* Microphone Mute Control */
|
||||
#define APANA_ADC_IN_SELECT 0x004 /* Microphone/Line IN select to ADC (1=MIC, 0=Line In) */
|
||||
#define APANA_ENABLE_BYPASS 0x008 /* Line input bypass to line output */
|
||||
#define APANA_SELECT_DAC 0x010 /* Select DAC (1=Select DAC, 0=Don't Select DAC) */
|
||||
#define APANA_ENABLE_SIDETONE 0x020 /* Enable/Disable Side Tone */
|
||||
#define APANA_SIDETONE_ATTN 0x0C0 /* Side Tone Attenuation */
|
||||
#define APANA_ENABLE_MIC_BOOST2 0x100 /* Secondary Microphone Amplifier gain booster control */
|
||||
|
||||
/*Digital Audio Path Control (SSM2602_REG_DIGITAL_PATH)*/
|
||||
#define APDIGI_ENABLE_ADC_HPF 0x001 /* Enable/Disable ADC Highpass Filter */
|
||||
#define APDIGI_DE_EMPHASIS 0x006 /* De-Emphasis Control */
|
||||
#define APDIGI_ENABLE_DAC_MUTE 0x008 /* DAC Mute Control */
|
||||
#define APDIGI_STORE_OFFSET 0x010 /* Store/Clear DC offset when HPF is disabled */
|
||||
|
||||
/*Power Down Control (SSM2602_REG_POWER)
|
||||
*(1=Enable PowerDown, 0=Disable PowerDown)
|
||||
*/
|
||||
#define PWR_LINE_IN_PDN 0x001 /* Line Input Power Down */
|
||||
#define PWR_MIC_PDN 0x002 /* Microphone Input & Bias Power Down */
|
||||
#define PWR_ADC_PDN 0x004 /* ADC Power Down */
|
||||
#define PWR_DAC_PDN 0x008 /* DAC Power Down */
|
||||
#define PWR_OUT_PDN 0x010 /* Outputs Power Down */
|
||||
#define PWR_OSC_PDN 0x020 /* Oscillator Power Down */
|
||||
#define PWR_CLK_OUT_PDN 0x040 /* CLKOUT Power Down */
|
||||
#define PWR_POWER_OFF 0x080 /* POWEROFF Mode */
|
||||
|
||||
/*Digital Audio Interface Format (SSM2602_REG_DIGITAL_IFACE)*/
|
||||
#define IFACE_IFACE_FORMAT 0x003 /* Digital Audio input format control */
|
||||
#define IFACE_AUDIO_DATA_LEN 0x00C /* Audio Data word length control */
|
||||
#define IFACE_DAC_LR_POLARITY 0x010 /* Polarity Control for clocks in RJ,LJ and I2S modes */
|
||||
#define IFACE_DAC_LR_SWAP 0x020 /* Swap DAC data control */
|
||||
#define IFACE_ENABLE_MASTER 0x040 /* Enable/Disable Master Mode */
|
||||
#define IFACE_BCLK_INVERT 0x080 /* Bit Clock Inversion control */
|
||||
|
||||
/*Sampling Control (SSM2602_REG_SAMPLING_CTRL)*/
|
||||
#define SRATE_ENABLE_USB_MODE 0x001 /* Enable/Disable USB Mode */
|
||||
#define SRATE_BOS_RATE 0x002 /* Base Over-Sampling rate */
|
||||
#define SRATE_SAMPLE_RATE 0x03C /* Clock setting condition (Sampling rate control) */
|
||||
#define SRATE_CORECLK_DIV2 0x040 /* Core Clock divider select */
|
||||
#define SRATE_CLKOUT_DIV2 0x080 /* Clock Out divider select */
|
||||
|
||||
/*Active Control (SSM2602_REG_ACTIVE_CTRL)*/
|
||||
#define ACTIVE_ACTIVATE_CODEC 0x001 /* Activate Codec Digital Audio Interface */
|
||||
|
||||
/*********************************************************************/
|
||||
|
||||
#define SSM2602_CACHEREGNUM 10
|
||||
|
||||
#define SSM2602_SYSCLK 0
|
||||
#define SSM2602_DAI 0
|
||||
|
||||
struct ssm2602_setup_data {
|
||||
int i2c_bus;
|
||||
unsigned short i2c_address;
|
||||
};
|
||||
|
||||
extern struct snd_soc_dai ssm2602_dai;
|
||||
extern struct snd_soc_codec_device soc_codec_dev_ssm2602;
|
||||
|
||||
#endif
|
||||
Loading…
Reference in New Issue