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alistair23-linux/sound/soc/codecs/da7210.c
Liam Girdwood f0fba2ad1b ASoC: multi-component - ASoC Multi-Component Support 
This patch extends the ASoC API to allow sound cards to have more than one
CODEC and more than one platform DMA controller. This is achieved by dividing
some current ASoC structures that contain both driver data and device data into
structures that only either contain device data or driver data. i.e.

 struct snd_soc_codec    --->  struct snd_soc_codec (device data)
                          +->  struct snd_soc_codec_driver (driver data)

 struct snd_soc_platform --->  struct snd_soc_platform (device data)
                          +->  struct snd_soc_platform_driver (driver data)

 struct snd_soc_dai      --->  struct snd_soc_dai (device data)
                          +->  struct snd_soc_dai_driver (driver data)

 struct snd_soc_device   --->  deleted

This now allows ASoC to be more tightly aligned with the Linux driver model and
also means that every ASoC codec, platform and (platform) DAI is a kernel
device. ASoC component private data is now stored as device private data.

The ASoC sound card struct snd_soc_card has also been updated to store lists
of it's components rather than a pointer to a codec and platform. The PCM
runtime struct soc_pcm_runtime now has pointers to all its components.

This patch adds DAPM support for ASoC multi-component and removes struct
snd_soc_socdev from DAPM core. All DAPM calls are now made on a card, codec
or runtime PCM level basis rather than using snd_soc_socdev.

Other notable multi-component changes:-

 * Stream operations now de-reference less structures.
 * close_delayed work() now runs on a DAI basis rather than looping all DAIs
   in a card.
 * PM suspend()/resume() operations can now handle N CODECs and Platforms
   per sound card.
 * Added soc_bind_dai_link() to bind the component devices to the sound card.
 * Added soc_dai_link_probe() and soc_dai_link_remove() to probe and remove
   DAI link components.
 * sysfs entries can now be registered per component per card.
 * snd_soc_new_pcms() functionailty rolled into dai_link_probe().
 * snd_soc_register_codec() now does all the codec list and mutex init.

This patch changes the probe() and remove() of the CODEC drivers as follows:-

 o Make CODEC driver a platform driver
 o Moved all struct snd_soc_codec list, mutex, etc initialiasation to core.
 o Removed all static codec pointers (drivers now support > 1 codec dev)
 o snd_soc_register_pcms() now done by core.
 o snd_soc_register_dai() folded into snd_soc_register_codec().

CS4270 portions:
Acked-by: Timur Tabi <timur@freescale.com>

Some TLV320aic23 and Cirrus platform fixes.
Signed-off-by: Ryan Mallon <ryan@bluewatersys.com>

TI CODEC and OMAP fixes
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Jarkko Nikula <jhnikula@gmail.com>

Samsung platform and misc fixes :-
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Jassi Brar <jassi.brar@samsung.com>
Signed-off-by: Seungwhan Youn <sw.youn@samsung.com>

MPC8610 and PPC fixes.
Signed-off-by: Timur Tabi <timur@freescale.com>

i.MX fixes and some core fixes.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

J4740 platform fixes:-
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>

CC: Tony Lindgren <tony@atomide.com>
CC: Nicolas Ferre <nicolas.ferre@atmel.com>
CC: Kevin Hilman <khilman@deeprootsystems.com>
CC: Sascha Hauer <s.hauer@pengutronix.de>
CC: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
CC: Kuninori Morimoto <morimoto.kuninori@renesas.com>
CC: Daniel Gloeckner <dg@emlix.com>
CC: Manuel Lauss <mano@roarinelk.homelinux.net>
CC: Mike Frysinger <vapier.adi@gmail.com>
CC: Arnaud Patard <apatard@mandriva.com>
CC: Wan ZongShun <mcuos.com@gmail.com>

Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2010-08-12 14:00:00 +01:00

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/*
* DA7210 ALSA Soc codec driver
*
* Copyright (c) 2009 Dialog Semiconductor
* Written by David Chen <Dajun.chen@diasemi.com>
*
* Copyright (C) 2009 Renesas Solutions Corp.
* Cleanups by Kuninori Morimoto <morimoto.kuninori@renesas.com>
*
* Tested on SuperH Ecovec24 board with S16/S24 LE in 48KHz using I2S
*
* 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.
*/
#include <linux/delay.h>
#include <linux/i2c.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc-dapm.h>
#include <sound/initval.h>
#include <sound/tlv.h>
/* DA7210 register space */
#define DA7210_STATUS 0x02
#define DA7210_STARTUP1 0x03
#define DA7210_MIC_L 0x07
#define DA7210_MIC_R 0x08
#define DA7210_INMIX_L 0x0D
#define DA7210_INMIX_R 0x0E
#define DA7210_ADC_HPF 0x0F
#define DA7210_ADC 0x10
#define DA7210_DAC_HPF 0x14
#define DA7210_DAC_L 0x15
#define DA7210_DAC_R 0x16
#define DA7210_DAC_SEL 0x17
#define DA7210_OUTMIX_L 0x1C
#define DA7210_OUTMIX_R 0x1D
#define DA7210_HP_L_VOL 0x21
#define DA7210_HP_R_VOL 0x22
#define DA7210_HP_CFG 0x23
#define DA7210_DAI_SRC_SEL 0x25
#define DA7210_DAI_CFG1 0x26
#define DA7210_DAI_CFG3 0x28
#define DA7210_PLL_DIV1 0x29
#define DA7210_PLL_DIV2 0x2A
#define DA7210_PLL_DIV3 0x2B
#define DA7210_PLL 0x2C
#define DA7210_A_HID_UNLOCK 0x8A
#define DA7210_A_TEST_UNLOCK 0x8B
#define DA7210_A_PLL1 0x90
#define DA7210_A_CP_MODE 0xA7
/* STARTUP1 bit fields */
#define DA7210_SC_MST_EN (1 << 0)
/* MIC_L bit fields */
#define DA7210_MICBIAS_EN (1 << 6)
#define DA7210_MIC_L_EN (1 << 7)
/* MIC_R bit fields */
#define DA7210_MIC_R_EN (1 << 7)
/* INMIX_L bit fields */
#define DA7210_IN_L_EN (1 << 7)
/* INMIX_R bit fields */
#define DA7210_IN_R_EN (1 << 7)
/* ADC bit fields */
#define DA7210_ADC_L_EN (1 << 3)
#define DA7210_ADC_R_EN (1 << 7)
/* DAC/ADC HPF fields */
#define DA7210_VOICE_F0_MASK (0x7 << 4)
#define DA7210_VOICE_F0_25 (1 << 4)
#define DA7210_VOICE_EN (1 << 7)
/* DAC_SEL bit fields */
#define DA7210_DAC_L_SRC_DAI_L (4 << 0)
#define DA7210_DAC_L_EN (1 << 3)
#define DA7210_DAC_R_SRC_DAI_R (5 << 4)
#define DA7210_DAC_R_EN (1 << 7)
/* OUTMIX_L bit fields */
#define DA7210_OUT_L_EN (1 << 7)
/* OUTMIX_R bit fields */
#define DA7210_OUT_R_EN (1 << 7)
/* HP_CFG bit fields */
#define DA7210_HP_2CAP_MODE (1 << 1)
#define DA7210_HP_SENSE_EN (1 << 2)
#define DA7210_HP_L_EN (1 << 3)
#define DA7210_HP_MODE (1 << 6)
#define DA7210_HP_R_EN (1 << 7)
/* DAI_SRC_SEL bit fields */
#define DA7210_DAI_OUT_L_SRC (6 << 0)
#define DA7210_DAI_OUT_R_SRC (7 << 4)
/* DAI_CFG1 bit fields */
#define DA7210_DAI_WORD_S16_LE (0 << 0)
#define DA7210_DAI_WORD_S24_LE (2 << 0)
#define DA7210_DAI_FLEN_64BIT (1 << 2)
#define DA7210_DAI_MODE_MASTER (1 << 7)
/* DAI_CFG3 bit fields */
#define DA7210_DAI_FORMAT_I2SMODE (0 << 0)
#define DA7210_DAI_OE (1 << 3)
#define DA7210_DAI_EN (1 << 7)
/*PLL_DIV3 bit fields */
#define DA7210_MCLK_RANGE_10_20_MHZ (1 << 4)
#define DA7210_PLL_BYP (1 << 6)
/* PLL bit fields */
#define DA7210_PLL_FS_MASK (0xF << 0)
#define DA7210_PLL_FS_8000 (0x1 << 0)
#define DA7210_PLL_FS_11025 (0x2 << 0)
#define DA7210_PLL_FS_12000 (0x3 << 0)
#define DA7210_PLL_FS_16000 (0x5 << 0)
#define DA7210_PLL_FS_22050 (0x6 << 0)
#define DA7210_PLL_FS_24000 (0x7 << 0)
#define DA7210_PLL_FS_32000 (0x9 << 0)
#define DA7210_PLL_FS_44100 (0xA << 0)
#define DA7210_PLL_FS_48000 (0xB << 0)
#define DA7210_PLL_FS_88200 (0xE << 0)
#define DA7210_PLL_FS_96000 (0xF << 0)
#define DA7210_PLL_EN (0x1 << 7)
#define DA7210_VERSION "0.0.1"
/*
* Playback Volume
*
* max : 0x3F (+15.0 dB)
* (1.5 dB step)
* min : 0x11 (-54.0 dB)
* mute : 0x10
* reserved : 0x00 - 0x0F
*
* ** FIXME **
*
* Reserved area are considered as "mute".
* -> min = -79.5 dB
*/
static const DECLARE_TLV_DB_SCALE(hp_out_tlv, -7950, 150, 1);
static const struct snd_kcontrol_new da7210_snd_controls[] = {
SOC_DOUBLE_R_TLV("HeadPhone Playback Volume",
DA7210_HP_L_VOL, DA7210_HP_R_VOL,
0, 0x3F, 0, hp_out_tlv),
};
/* Codec private data */
struct da7210_priv {
enum snd_soc_control_type control_type;
void *control_data;
};
/*
* Register cache
*/
static const u8 da7210_reg[] = {
0x00, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R0 - R7 */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, /* R8 - RF */
0x00, 0x00, 0x00, 0x00, 0x08, 0x10, 0x10, 0x54, /* R10 - R17 */
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R18 - R1F */
0x00, 0x00, 0x00, 0x02, 0x00, 0x76, 0x00, 0x00, /* R20 - R27 */
0x04, 0x00, 0x00, 0x30, 0x2A, 0x00, 0x40, 0x00, /* R28 - R2F */
0x40, 0x00, 0x40, 0x00, 0x40, 0x00, 0x40, 0x00, /* R30 - R37 */
0x40, 0x00, 0x40, 0x00, 0x40, 0x00, 0x00, 0x00, /* R38 - R3F */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R40 - R4F */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R48 - R4F */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R50 - R57 */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R58 - R5F */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R60 - R67 */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R68 - R6F */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R70 - R77 */
0x00, 0x00, 0x00, 0x00, 0x00, 0x54, 0x54, 0x00, /* R78 - R7F */
0x00, 0x00, 0x2C, 0x00, 0x00, 0x00, 0x00, 0x00, /* R80 - R87 */
0x00, /* R88 */
};
/*
* Read da7210 register cache
*/
static inline u32 da7210_read_reg_cache(struct snd_soc_codec *codec, u32 reg)
{
u8 *cache = codec->reg_cache;
BUG_ON(reg >= ARRAY_SIZE(da7210_reg));
return cache[reg];
}
/*
* Write to the da7210 register space
*/
static int da7210_write(struct snd_soc_codec *codec, u32 reg, u32 value)
{
u8 *cache = codec->reg_cache;
u8 data[2];
BUG_ON(codec->driver->volatile_register);
data[0] = reg & 0xff;
data[1] = value & 0xff;
if (reg >= codec->driver->reg_cache_size)
return -EIO;
if (2 != codec->hw_write(codec->control_data, data, 2))
return -EIO;
cache[reg] = value;
return 0;
}
/*
* Read from the da7210 register space.
*/
static inline u32 da7210_read(struct snd_soc_codec *codec, u32 reg)
{
if (DA7210_STATUS == reg)
return i2c_smbus_read_byte_data(codec->control_data, reg);
return da7210_read_reg_cache(codec, reg);
}
static int da7210_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
struct snd_soc_codec *codec = dai->codec;
if (is_play) {
/* Enable Out */
snd_soc_update_bits(codec, DA7210_OUTMIX_L, 0x1F, 0x10);
snd_soc_update_bits(codec, DA7210_OUTMIX_R, 0x1F, 0x10);
} else {
/* Volume 7 */
snd_soc_update_bits(codec, DA7210_MIC_L, 0x7, 0x7);
snd_soc_update_bits(codec, DA7210_MIC_R, 0x7, 0x7);
/* Enable Mic */
snd_soc_update_bits(codec, DA7210_INMIX_L, 0x1F, 0x1);
snd_soc_update_bits(codec, DA7210_INMIX_R, 0x1F, 0x1);
}
return 0;
}
/*
* Set PCM DAI word length.
*/
static int da7210_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_codec *codec = rtd->codec;
u32 dai_cfg1;
u32 hpf_reg, hpf_mask, hpf_value;
u32 fs, bypass;
/* set DAI source to Left and Right ADC */
da7210_write(codec, DA7210_DAI_SRC_SEL,
DA7210_DAI_OUT_R_SRC | DA7210_DAI_OUT_L_SRC);
/* Enable DAI */
da7210_write(codec, DA7210_DAI_CFG3, DA7210_DAI_OE | DA7210_DAI_EN);
dai_cfg1 = 0xFC & da7210_read(codec, DA7210_DAI_CFG1);
switch (params_format(params)) {
case SNDRV_PCM_FORMAT_S16_LE:
dai_cfg1 |= DA7210_DAI_WORD_S16_LE;
break;
case SNDRV_PCM_FORMAT_S24_LE:
dai_cfg1 |= DA7210_DAI_WORD_S24_LE;
break;
default:
return -EINVAL;
}
da7210_write(codec, DA7210_DAI_CFG1, dai_cfg1);
hpf_reg = (SNDRV_PCM_STREAM_PLAYBACK == substream->stream) ?
DA7210_DAC_HPF : DA7210_ADC_HPF;
switch (params_rate(params)) {
case 8000:
fs = DA7210_PLL_FS_8000;
hpf_mask = DA7210_VOICE_F0_MASK | DA7210_VOICE_EN;
hpf_value = DA7210_VOICE_F0_25 | DA7210_VOICE_EN;
bypass = DA7210_PLL_BYP;
break;
case 11025:
fs = DA7210_PLL_FS_11025;
hpf_mask = DA7210_VOICE_F0_MASK | DA7210_VOICE_EN;
hpf_value = DA7210_VOICE_F0_25 | DA7210_VOICE_EN;
bypass = 0;
break;
case 12000:
fs = DA7210_PLL_FS_12000;
hpf_mask = DA7210_VOICE_F0_MASK | DA7210_VOICE_EN;
hpf_value = DA7210_VOICE_F0_25 | DA7210_VOICE_EN;
bypass = DA7210_PLL_BYP;
break;
case 16000:
fs = DA7210_PLL_FS_16000;
hpf_mask = DA7210_VOICE_F0_MASK | DA7210_VOICE_EN;
hpf_value = DA7210_VOICE_F0_25 | DA7210_VOICE_EN;
bypass = DA7210_PLL_BYP;
break;
case 22050:
fs = DA7210_PLL_FS_22050;
hpf_mask = DA7210_VOICE_EN;
hpf_value = 0;
bypass = 0;
break;
case 32000:
fs = DA7210_PLL_FS_32000;
hpf_mask = DA7210_VOICE_EN;
hpf_value = 0;
bypass = DA7210_PLL_BYP;
break;
case 44100:
fs = DA7210_PLL_FS_44100;
hpf_mask = DA7210_VOICE_EN;
hpf_value = 0;
bypass = 0;
break;
case 48000:
fs = DA7210_PLL_FS_48000;
hpf_mask = DA7210_VOICE_EN;
hpf_value = 0;
bypass = DA7210_PLL_BYP;
break;
case 88200:
fs = DA7210_PLL_FS_88200;
hpf_mask = DA7210_VOICE_EN;
hpf_value = 0;
bypass = 0;
break;
case 96000:
fs = DA7210_PLL_FS_96000;
hpf_mask = DA7210_VOICE_EN;
hpf_value = 0;
bypass = DA7210_PLL_BYP;
break;
default:
return -EINVAL;
}
/* Disable active mode */
snd_soc_update_bits(codec, DA7210_STARTUP1, DA7210_SC_MST_EN, 0);
snd_soc_update_bits(codec, hpf_reg, hpf_mask, hpf_value);
snd_soc_update_bits(codec, DA7210_PLL, DA7210_PLL_FS_MASK, fs);
snd_soc_update_bits(codec, DA7210_PLL_DIV3, DA7210_PLL_BYP, bypass);
/* Enable active mode */
snd_soc_update_bits(codec, DA7210_STARTUP1,
DA7210_SC_MST_EN, DA7210_SC_MST_EN);
return 0;
}
/*
* Set DAI mode and Format
*/
static int da7210_set_dai_fmt(struct snd_soc_dai *codec_dai, u32 fmt)
{
struct snd_soc_codec *codec = codec_dai->codec;
u32 dai_cfg1;
u32 dai_cfg3;
dai_cfg1 = 0x7f & da7210_read(codec, DA7210_DAI_CFG1);
dai_cfg3 = 0xfc & da7210_read(codec, DA7210_DAI_CFG3);
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBM_CFM:
dai_cfg1 |= DA7210_DAI_MODE_MASTER;
break;
default:
return -EINVAL;
}
/* FIXME
*
* It support I2S only now
*/
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
dai_cfg3 |= DA7210_DAI_FORMAT_I2SMODE;
break;
default:
return -EINVAL;
}
/* FIXME
*
* It support 64bit data transmission only now
*/
dai_cfg1 |= DA7210_DAI_FLEN_64BIT;
da7210_write(codec, DA7210_DAI_CFG1, dai_cfg1);
da7210_write(codec, DA7210_DAI_CFG3, dai_cfg3);
return 0;
}
#define DA7210_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE)
/* DAI operations */
static struct snd_soc_dai_ops da7210_dai_ops = {
.startup = da7210_startup,
.hw_params = da7210_hw_params,
.set_fmt = da7210_set_dai_fmt,
};
static struct snd_soc_dai_driver da7210_dai = {
.name = "da7210-hifi",
/* playback capabilities */
.playback = {
.stream_name = "Playback",
.channels_min = 1,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000_96000,
.formats = DA7210_FORMATS,
},
/* capture capabilities */
.capture = {
.stream_name = "Capture",
.channels_min = 1,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000_96000,
.formats = DA7210_FORMATS,
},
.ops = &da7210_dai_ops,
.symmetric_rates = 1,
};
static int da7210_probe(struct snd_soc_codec *codec)
{
struct da7210_priv *da7210 = snd_soc_codec_get_drvdata(codec);
dev_info(codec->dev, "DA7210 Audio Codec %s\n", DA7210_VERSION);
codec->control_data = da7210->control_data;
codec->hw_write = (hw_write_t)i2c_master_send;
/* FIXME
*
* This driver use fixed value here
* And below settings expects MCLK = 12.288MHz
*
* When you select different MCLK, please check...
* DA7210_PLL_DIV1 val
* DA7210_PLL_DIV2 val
* DA7210_PLL_DIV3 val
* DA7210_PLL_DIV3 :: DA7210_MCLK_RANGExxx
*/
/*
* make sure that DA7210 use bypass mode before start up
*/
da7210_write(codec, DA7210_STARTUP1, 0);
da7210_write(codec, DA7210_PLL_DIV3,
DA7210_MCLK_RANGE_10_20_MHZ | DA7210_PLL_BYP);
/*
* ADC settings
*/
/* Enable Left & Right MIC PGA and Mic Bias */
da7210_write(codec, DA7210_MIC_L, DA7210_MIC_L_EN | DA7210_MICBIAS_EN);
da7210_write(codec, DA7210_MIC_R, DA7210_MIC_R_EN);
/* Enable Left and Right input PGA */
da7210_write(codec, DA7210_INMIX_L, DA7210_IN_L_EN);
da7210_write(codec, DA7210_INMIX_R, DA7210_IN_R_EN);
/* Enable Left and Right ADC */
da7210_write(codec, DA7210_ADC, DA7210_ADC_L_EN | DA7210_ADC_R_EN);
/*
* DAC settings
*/
/* Enable Left and Right DAC */
da7210_write(codec, DA7210_DAC_SEL,
DA7210_DAC_L_SRC_DAI_L | DA7210_DAC_L_EN |
DA7210_DAC_R_SRC_DAI_R | DA7210_DAC_R_EN);
/* Enable Left and Right out PGA */
da7210_write(codec, DA7210_OUTMIX_L, DA7210_OUT_L_EN);
da7210_write(codec, DA7210_OUTMIX_R, DA7210_OUT_R_EN);
/* Enable Left and Right HeadPhone PGA */
da7210_write(codec, DA7210_HP_CFG,
DA7210_HP_2CAP_MODE | DA7210_HP_SENSE_EN |
DA7210_HP_L_EN | DA7210_HP_MODE | DA7210_HP_R_EN);
/* Diable PLL and bypass it */
da7210_write(codec, DA7210_PLL, DA7210_PLL_FS_48000);
/*
* If 48kHz sound came, it use bypass mode,
* and when it is 44.1kHz, it use PLL.
*
* This time, this driver sets PLL always ON
* and controls bypass/PLL mode by switching
* DA7210_PLL_DIV3 :: DA7210_PLL_BYP bit.
* see da7210_hw_params
*/
da7210_write(codec, DA7210_PLL_DIV1, 0xE5); /* MCLK = 12.288MHz */
da7210_write(codec, DA7210_PLL_DIV2, 0x99);
da7210_write(codec, DA7210_PLL_DIV3, 0x0A |
DA7210_MCLK_RANGE_10_20_MHZ | DA7210_PLL_BYP);
snd_soc_update_bits(codec, DA7210_PLL, DA7210_PLL_EN, DA7210_PLL_EN);
/* As suggested by Dialog */
da7210_write(codec, DA7210_A_HID_UNLOCK, 0x8B); /* unlock */
da7210_write(codec, DA7210_A_TEST_UNLOCK, 0xB4);
da7210_write(codec, DA7210_A_PLL1, 0x01);
da7210_write(codec, DA7210_A_CP_MODE, 0x7C);
da7210_write(codec, DA7210_A_HID_UNLOCK, 0x00); /* re-lock */
da7210_write(codec, DA7210_A_TEST_UNLOCK, 0x00);
/* Activate all enabled subsystem */
da7210_write(codec, DA7210_STARTUP1, DA7210_SC_MST_EN);
snd_soc_add_controls(codec, da7210_snd_controls,
ARRAY_SIZE(da7210_snd_controls));
dev_info(codec->dev, "DA7210 Audio Codec %s\n", DA7210_VERSION);
return 0;
}
static struct snd_soc_codec_driver soc_codec_dev_da7210 = {
.probe = da7210_probe,
.read = da7210_read,
.write = da7210_write,
.reg_cache_size = ARRAY_SIZE(da7210_reg),
.reg_word_size = sizeof(u8),
.reg_cache_default = da7210_reg,
};
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
static int __devinit da7210_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
struct da7210_priv *da7210;
int ret;
da7210 = kzalloc(sizeof(struct da7210_priv), GFP_KERNEL);
if (!da7210)
return -ENOMEM;
i2c_set_clientdata(i2c, da7210);
da7210->control_data = i2c;
da7210->control_type = SND_SOC_I2C;
ret = snd_soc_register_codec(&i2c->dev,
&soc_codec_dev_da7210, &da7210_dai, 1);
if (ret < 0)
kfree(da7210);
return ret;
}
static int __devexit da7210_i2c_remove(struct i2c_client *client)
{
snd_soc_unregister_codec(&client->dev);
kfree(i2c_get_clientdata(client));
return 0;
}
static const struct i2c_device_id da7210_i2c_id[] = {
{ "da7210", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, da7210_i2c_id);
/* I2C codec control layer */
static struct i2c_driver da7210_i2c_driver = {
.driver = {
.name = "da7210-codec",
.owner = THIS_MODULE,
},
.probe = da7210_i2c_probe,
.remove = __devexit_p(da7210_i2c_remove),
.id_table = da7210_i2c_id,
};
#endif
static int __init da7210_modinit(void)
{
int ret = 0;
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
ret = i2c_add_driver(&da7210_i2c_driver);
#endif
return ret;
}
module_init(da7210_modinit);
static void __exit da7210_exit(void)
{
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
i2c_del_driver(&da7210_i2c_driver);
#endif
}
module_exit(da7210_exit);
MODULE_DESCRIPTION("ASoC DA7210 driver");
MODULE_AUTHOR("David Chen, Kuninori Morimoto");
MODULE_LICENSE("GPL");
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