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android_kernel_samsung_msm8976/sound/soc/codecs/sn95031.c
Vinod Koul 36633237be ASoC: sn95031: Add support for reading mic bias 
This patch adds support to read the mic bias voltage
when a jack is inserted. It uses ADC to measure.

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Harsha Priya <priya.harsha@intel.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-02-09 22:32:53 +00:00

951 lines
29 KiB
C
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/*
* sn95031.c - TI sn95031 Codec driver
*
* Copyright (C) 2010 Intel Corp
* Author: Vinod Koul <vinod.koul@intel.com>
* Author: Harsha Priya <priya.harsha@intel.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; version 2 of the License.
*
* 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.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
*
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <asm/intel_scu_ipc.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/initval.h>
#include <sound/tlv.h>
#include <sound/jack.h>
#include "sn95031.h"
#define SN95031_RATES (SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_44100)
#define SN95031_FORMATS (SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE)
/* adc helper functions */
/* enables mic bias voltage */
static void sn95031_enable_mic_bias(struct snd_soc_codec *codec)
{
snd_soc_write(codec, SN95031_VAUD, BIT(2)|BIT(1)|BIT(0));
snd_soc_update_bits(codec, SN95031_MICBIAS, BIT(2), BIT(2));
}
/* Enable/Disable the ADC depending on the argument */
static void configure_adc(struct snd_soc_codec *sn95031_codec, int val)
{
int value = snd_soc_read(sn95031_codec, SN95031_ADC1CNTL1);
if (val) {
/* Enable and start the ADC */
value |= (SN95031_ADC_ENBL | SN95031_ADC_START);
value &= (~SN95031_ADC_NO_LOOP);
} else {
/* Just stop the ADC */
value &= (~SN95031_ADC_START);
}
snd_soc_write(sn95031_codec, SN95031_ADC1CNTL1, value);
}
/*
* finds an empty channel for conversion
* If the ADC is not enabled then start using 0th channel
* itself. Otherwise find an empty channel by looking for a
* channel in which the stopbit is set to 1. returns the index
* of the first free channel if succeeds or an error code.
*
* Context: can sleep
*
*/
static int find_free_channel(struct snd_soc_codec *sn95031_codec)
{
int ret = 0, i, value;
/* check whether ADC is enabled */
value = snd_soc_read(sn95031_codec, SN95031_ADC1CNTL1);
if ((value & SN95031_ADC_ENBL) == 0)
return 0;
/* ADC is already enabled; Looking for an empty channel */
for (i = 0; i < SN95031_ADC_CHANLS_MAX; i++) {
value = snd_soc_read(sn95031_codec,
SN95031_ADC_CHNL_START_ADDR + i);
if (value & SN95031_STOPBIT_MASK) {
ret = i;
break;
}
}
return (ret > SN95031_ADC_LOOP_MAX) ? (-EINVAL) : ret;
}
/* Initialize the ADC for reading micbias values. Can sleep. */
static int sn95031_initialize_adc(struct snd_soc_codec *sn95031_codec)
{
int base_addr, chnl_addr;
int value;
static int channel_index;
/* Index of the first channel in which the stop bit is set */
channel_index = find_free_channel(sn95031_codec);
if (channel_index < 0) {
pr_err("No free ADC channels");
return channel_index;
}
base_addr = SN95031_ADC_CHNL_START_ADDR + channel_index;
if (!(channel_index == 0 || channel_index == SN95031_ADC_LOOP_MAX)) {
/* Reset stop bit for channels other than 0 and 12 */
value = snd_soc_read(sn95031_codec, base_addr);
/* Set the stop bit to zero */
snd_soc_write(sn95031_codec, base_addr, value & 0xEF);
/* Index of the first free channel */
base_addr++;
channel_index++;
}
/* Since this is the last channel, set the stop bit
to 1 by ORing the DIE_SENSOR_CODE with 0x10 */
snd_soc_write(sn95031_codec, base_addr,
SN95031_AUDIO_DETECT_CODE | 0x10);
chnl_addr = SN95031_ADC_DATA_START_ADDR + 2 * channel_index;
pr_debug("mid_initialize : %x", chnl_addr);
configure_adc(sn95031_codec, 1);
return chnl_addr;
}
/* reads the ADC registers and gets the mic bias value in mV. */
static unsigned int sn95031_get_mic_bias(struct snd_soc_codec *codec)
{
u16 adc_adr = sn95031_initialize_adc(codec);
u16 adc_val1, adc_val2;
unsigned int mic_bias;
sn95031_enable_mic_bias(codec);
/* Enable the sound card for conversion before reading */
snd_soc_write(codec, SN95031_ADC1CNTL3, 0x05);
/* Re-toggle the RRDATARD bit */
snd_soc_write(codec, SN95031_ADC1CNTL3, 0x04);
/* Read the higher bits of data */
msleep(1000);
adc_val1 = snd_soc_read(codec, adc_adr);
adc_adr++;
adc_val2 = snd_soc_read(codec, adc_adr);
/* Adding lower two bits to the higher bits */
mic_bias = (adc_val1 << 2) + (adc_val2 & 3);
mic_bias = (mic_bias * SN95031_ADC_ONE_LSB_MULTIPLIER) / 1000;
pr_debug("mic bias = %dmV\n", mic_bias);
return mic_bias;
}
EXPORT_SYMBOL_GPL(sn95031_get_mic_bias);
/*end - adc helper functions */
static inline unsigned int sn95031_read(struct snd_soc_codec *codec,
unsigned int reg)
{
u8 value = 0;
int ret;
ret = intel_scu_ipc_ioread8(reg, &value);
if (ret)
pr_err("read of %x failed, err %d\n", reg, ret);
return value;
}
static inline int sn95031_write(struct snd_soc_codec *codec,
unsigned int reg, unsigned int value)
{
int ret;
ret = intel_scu_ipc_iowrite8(reg, value);
if (ret)
pr_err("write of %x failed, err %d\n", reg, ret);
return ret;
}
static int sn95031_set_vaud_bias(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
switch (level) {
case SND_SOC_BIAS_ON:
break;
case SND_SOC_BIAS_PREPARE:
if (codec->dapm.bias_level == SND_SOC_BIAS_STANDBY) {
pr_debug("vaud_bias powering up pll\n");
/* power up the pll */
snd_soc_write(codec, SN95031_AUDPLLCTRL, BIT(5));
/* enable pcm 2 */
snd_soc_update_bits(codec, SN95031_PCM2C2,
BIT(0), BIT(0));
}
break;
case SND_SOC_BIAS_STANDBY:
if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
pr_debug("vaud_bias power up rail\n");
/* power up the rail */
snd_soc_write(codec, SN95031_VAUD,
BIT(2)|BIT(1)|BIT(0));
msleep(1);
} else if (codec->dapm.bias_level == SND_SOC_BIAS_PREPARE) {
/* turn off pcm */
pr_debug("vaud_bias power dn pcm\n");
snd_soc_update_bits(codec, SN95031_PCM2C2, BIT(0), 0);
snd_soc_write(codec, SN95031_AUDPLLCTRL, 0);
}
break;
case SND_SOC_BIAS_OFF:
pr_debug("vaud_bias _OFF doing rail shutdown\n");
snd_soc_write(codec, SN95031_VAUD, BIT(3));
break;
}
codec->dapm.bias_level = level;
return 0;
}
static int sn95031_vhs_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
if (SND_SOC_DAPM_EVENT_ON(event)) {
pr_debug("VHS SND_SOC_DAPM_EVENT_ON doing rail startup now\n");
/* power up the rail */
snd_soc_write(w->codec, SN95031_VHSP, 0x3D);
snd_soc_write(w->codec, SN95031_VHSN, 0x3F);
msleep(1);
} else if (SND_SOC_DAPM_EVENT_OFF(event)) {
pr_debug("VHS SND_SOC_DAPM_EVENT_OFF doing rail shutdown\n");
snd_soc_write(w->codec, SN95031_VHSP, 0xC4);
snd_soc_write(w->codec, SN95031_VHSN, 0x04);
}
return 0;
}
static int sn95031_vihf_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
if (SND_SOC_DAPM_EVENT_ON(event)) {
pr_debug("VIHF SND_SOC_DAPM_EVENT_ON doing rail startup now\n");
/* power up the rail */
snd_soc_write(w->codec, SN95031_VIHF, 0x27);
msleep(1);
} else if (SND_SOC_DAPM_EVENT_OFF(event)) {
pr_debug("VIHF SND_SOC_DAPM_EVENT_OFF doing rail shutdown\n");
snd_soc_write(w->codec, SN95031_VIHF, 0x24);
}
return 0;
}
static int sn95031_dmic12_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *k, int event)
{
unsigned int ldo = 0, clk_dir = 0, data_dir = 0;
if (SND_SOC_DAPM_EVENT_ON(event)) {
ldo = BIT(5)|BIT(4);
clk_dir = BIT(0);
data_dir = BIT(7);
}
/* program DMIC LDO, clock and set clock */
snd_soc_update_bits(w->codec, SN95031_MICBIAS, BIT(5)|BIT(4), ldo);
snd_soc_update_bits(w->codec, SN95031_DMICBUF0123, BIT(0), clk_dir);
snd_soc_update_bits(w->codec, SN95031_DMICBUF0123, BIT(7), data_dir);
return 0;
}
static int sn95031_dmic34_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *k, int event)
{
unsigned int ldo = 0, clk_dir = 0, data_dir = 0;
if (SND_SOC_DAPM_EVENT_ON(event)) {
ldo = BIT(5)|BIT(4);
clk_dir = BIT(2);
data_dir = BIT(1);
}
/* program DMIC LDO, clock and set clock */
snd_soc_update_bits(w->codec, SN95031_MICBIAS, BIT(5)|BIT(4), ldo);
snd_soc_update_bits(w->codec, SN95031_DMICBUF0123, BIT(2), clk_dir);
snd_soc_update_bits(w->codec, SN95031_DMICBUF45, BIT(1), data_dir);
return 0;
}
static int sn95031_dmic56_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *k, int event)
{
unsigned int ldo = 0;
if (SND_SOC_DAPM_EVENT_ON(event))
ldo = BIT(7)|BIT(6);
/* program DMIC LDO */
snd_soc_update_bits(w->codec, SN95031_MICBIAS, BIT(7)|BIT(6), ldo);
return 0;
}
/* mux controls */
static const char *sn95031_mic_texts[] = { "AMIC", "LineIn" };
static const struct soc_enum sn95031_micl_enum =
SOC_ENUM_SINGLE(SN95031_ADCCONFIG, 1, 2, sn95031_mic_texts);
static const struct snd_kcontrol_new sn95031_micl_mux_control =
SOC_DAPM_ENUM("Route", sn95031_micl_enum);
static const struct soc_enum sn95031_micr_enum =
SOC_ENUM_SINGLE(SN95031_ADCCONFIG, 3, 2, sn95031_mic_texts);
static const struct snd_kcontrol_new sn95031_micr_mux_control =
SOC_DAPM_ENUM("Route", sn95031_micr_enum);
static const char *sn95031_input_texts[] = { "DMIC1", "DMIC2", "DMIC3",
"DMIC4", "DMIC5", "DMIC6",
"ADC Left", "ADC Right" };
static const struct soc_enum sn95031_input1_enum =
SOC_ENUM_SINGLE(SN95031_AUDIOMUX12, 0, 8, sn95031_input_texts);
static const struct snd_kcontrol_new sn95031_input1_mux_control =
SOC_DAPM_ENUM("Route", sn95031_input1_enum);
static const struct soc_enum sn95031_input2_enum =
SOC_ENUM_SINGLE(SN95031_AUDIOMUX12, 4, 8, sn95031_input_texts);
static const struct snd_kcontrol_new sn95031_input2_mux_control =
SOC_DAPM_ENUM("Route", sn95031_input2_enum);
static const struct soc_enum sn95031_input3_enum =
SOC_ENUM_SINGLE(SN95031_AUDIOMUX34, 0, 8, sn95031_input_texts);
static const struct snd_kcontrol_new sn95031_input3_mux_control =
SOC_DAPM_ENUM("Route", sn95031_input3_enum);
static const struct soc_enum sn95031_input4_enum =
SOC_ENUM_SINGLE(SN95031_AUDIOMUX34, 4, 8, sn95031_input_texts);
static const struct snd_kcontrol_new sn95031_input4_mux_control =
SOC_DAPM_ENUM("Route", sn95031_input4_enum);
/* capture path controls */
static const char *sn95031_micmode_text[] = {"Single Ended", "Differential"};
/* 0dB to 30dB in 10dB steps */
static const DECLARE_TLV_DB_SCALE(mic_tlv, 0, 10, 30);
static const struct soc_enum sn95031_micmode1_enum =
SOC_ENUM_SINGLE(SN95031_MICAMP1, 1, 2, sn95031_micmode_text);
static const struct soc_enum sn95031_micmode2_enum =
SOC_ENUM_SINGLE(SN95031_MICAMP2, 1, 2, sn95031_micmode_text);
static const char *sn95031_dmic_cfg_text[] = {"GPO", "DMIC"};
static const struct soc_enum sn95031_dmic12_cfg_enum =
SOC_ENUM_SINGLE(SN95031_DMICMUX, 0, 2, sn95031_dmic_cfg_text);
static const struct soc_enum sn95031_dmic34_cfg_enum =
SOC_ENUM_SINGLE(SN95031_DMICMUX, 1, 2, sn95031_dmic_cfg_text);
static const struct soc_enum sn95031_dmic56_cfg_enum =
SOC_ENUM_SINGLE(SN95031_DMICMUX, 2, 2, sn95031_dmic_cfg_text);
static const struct snd_kcontrol_new sn95031_snd_controls[] = {
SOC_ENUM("Mic1Mode Capture Route", sn95031_micmode1_enum),
SOC_ENUM("Mic2Mode Capture Route", sn95031_micmode2_enum),
SOC_ENUM("DMIC12 Capture Route", sn95031_dmic12_cfg_enum),
SOC_ENUM("DMIC34 Capture Route", sn95031_dmic34_cfg_enum),
SOC_ENUM("DMIC56 Capture Route", sn95031_dmic56_cfg_enum),
SOC_SINGLE_TLV("Mic1 Capture Volume", SN95031_MICAMP1,
2, 4, 0, mic_tlv),
SOC_SINGLE_TLV("Mic2 Capture Volume", SN95031_MICAMP2,
2, 4, 0, mic_tlv),
};
/* DAPM widgets */
static const struct snd_soc_dapm_widget sn95031_dapm_widgets[] = {
/* all end points mic, hs etc */
SND_SOC_DAPM_OUTPUT("HPOUTL"),
SND_SOC_DAPM_OUTPUT("HPOUTR"),
SND_SOC_DAPM_OUTPUT("EPOUT"),
SND_SOC_DAPM_OUTPUT("IHFOUTL"),
SND_SOC_DAPM_OUTPUT("IHFOUTR"),
SND_SOC_DAPM_OUTPUT("LINEOUTL"),
SND_SOC_DAPM_OUTPUT("LINEOUTR"),
SND_SOC_DAPM_OUTPUT("VIB1OUT"),
SND_SOC_DAPM_OUTPUT("VIB2OUT"),
SND_SOC_DAPM_INPUT("AMIC1"), /* headset mic */
SND_SOC_DAPM_INPUT("AMIC2"),
SND_SOC_DAPM_INPUT("DMIC1"),
SND_SOC_DAPM_INPUT("DMIC2"),
SND_SOC_DAPM_INPUT("DMIC3"),
SND_SOC_DAPM_INPUT("DMIC4"),
SND_SOC_DAPM_INPUT("DMIC5"),
SND_SOC_DAPM_INPUT("DMIC6"),
SND_SOC_DAPM_INPUT("LINEINL"),
SND_SOC_DAPM_INPUT("LINEINR"),
SND_SOC_DAPM_MICBIAS("AMIC1Bias", SN95031_MICBIAS, 2, 0),
SND_SOC_DAPM_MICBIAS("AMIC2Bias", SN95031_MICBIAS, 3, 0),
SND_SOC_DAPM_MICBIAS("DMIC12Bias", SN95031_DMICMUX, 3, 0),
SND_SOC_DAPM_MICBIAS("DMIC34Bias", SN95031_DMICMUX, 4, 0),
SND_SOC_DAPM_MICBIAS("DMIC56Bias", SN95031_DMICMUX, 5, 0),
SND_SOC_DAPM_SUPPLY("DMIC12supply", SN95031_DMICLK, 0, 0,
sn95031_dmic12_event,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_SUPPLY("DMIC34supply", SN95031_DMICLK, 1, 0,
sn95031_dmic34_event,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_SUPPLY("DMIC56supply", SN95031_DMICLK, 2, 0,
sn95031_dmic56_event,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_AIF_OUT("PCM_Out", "Capture", 0,
SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_SUPPLY("Headset Rail", SND_SOC_NOPM, 0, 0,
sn95031_vhs_event,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_SUPPLY("Speaker Rail", SND_SOC_NOPM, 0, 0,
sn95031_vihf_event,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
/* playback path driver enables */
SND_SOC_DAPM_PGA("Headset Left Playback",
SN95031_DRIVEREN, 0, 0, NULL, 0),
SND_SOC_DAPM_PGA("Headset Right Playback",
SN95031_DRIVEREN, 1, 0, NULL, 0),
SND_SOC_DAPM_PGA("Speaker Left Playback",
SN95031_DRIVEREN, 2, 0, NULL, 0),
SND_SOC_DAPM_PGA("Speaker Right Playback",
SN95031_DRIVEREN, 3, 0, NULL, 0),
SND_SOC_DAPM_PGA("Vibra1 Playback",
SN95031_DRIVEREN, 4, 0, NULL, 0),
SND_SOC_DAPM_PGA("Vibra2 Playback",
SN95031_DRIVEREN, 5, 0, NULL, 0),
SND_SOC_DAPM_PGA("Earpiece Playback",
SN95031_DRIVEREN, 6, 0, NULL, 0),
SND_SOC_DAPM_PGA("Lineout Left Playback",
SN95031_LOCTL, 0, 0, NULL, 0),
SND_SOC_DAPM_PGA("Lineout Right Playback",
SN95031_LOCTL, 4, 0, NULL, 0),
/* playback path filter enable */
SND_SOC_DAPM_PGA("Headset Left Filter",
SN95031_HSEPRXCTRL, 4, 0, NULL, 0),
SND_SOC_DAPM_PGA("Headset Right Filter",
SN95031_HSEPRXCTRL, 5, 0, NULL, 0),
SND_SOC_DAPM_PGA("Speaker Left Filter",
SN95031_IHFRXCTRL, 0, 0, NULL, 0),
SND_SOC_DAPM_PGA("Speaker Right Filter",
SN95031_IHFRXCTRL, 1, 0, NULL, 0),
/* DACs */
SND_SOC_DAPM_DAC("HSDAC Left", "Headset",
SN95031_DACCONFIG, 0, 0),
SND_SOC_DAPM_DAC("HSDAC Right", "Headset",
SN95031_DACCONFIG, 1, 0),
SND_SOC_DAPM_DAC("IHFDAC Left", "Speaker",
SN95031_DACCONFIG, 2, 0),
SND_SOC_DAPM_DAC("IHFDAC Right", "Speaker",
SN95031_DACCONFIG, 3, 0),
SND_SOC_DAPM_DAC("Vibra1 DAC", "Vibra1",
SN95031_VIB1C5, 1, 0),
SND_SOC_DAPM_DAC("Vibra2 DAC", "Vibra2",
SN95031_VIB2C5, 1, 0),
/* capture widgets */
SND_SOC_DAPM_PGA("LineIn Enable Left", SN95031_MICAMP1,
7, 0, NULL, 0),
SND_SOC_DAPM_PGA("LineIn Enable Right", SN95031_MICAMP2,
7, 0, NULL, 0),
SND_SOC_DAPM_PGA("MIC1 Enable", SN95031_MICAMP1, 0, 0, NULL, 0),
SND_SOC_DAPM_PGA("MIC2 Enable", SN95031_MICAMP2, 0, 0, NULL, 0),
SND_SOC_DAPM_PGA("TX1 Enable", SN95031_AUDIOTXEN, 2, 0, NULL, 0),
SND_SOC_DAPM_PGA("TX2 Enable", SN95031_AUDIOTXEN, 3, 0, NULL, 0),
SND_SOC_DAPM_PGA("TX3 Enable", SN95031_AUDIOTXEN, 4, 0, NULL, 0),
SND_SOC_DAPM_PGA("TX4 Enable", SN95031_AUDIOTXEN, 5, 0, NULL, 0),
/* ADC have null stream as they will be turned ON by TX path */
SND_SOC_DAPM_ADC("ADC Left", NULL,
SN95031_ADCCONFIG, 0, 0),
SND_SOC_DAPM_ADC("ADC Right", NULL,
SN95031_ADCCONFIG, 2, 0),
SND_SOC_DAPM_MUX("Mic_InputL Capture Route",
SND_SOC_NOPM, 0, 0, &sn95031_micl_mux_control),
SND_SOC_DAPM_MUX("Mic_InputR Capture Route",
SND_SOC_NOPM, 0, 0, &sn95031_micr_mux_control),
SND_SOC_DAPM_MUX("Txpath1 Capture Route",
SND_SOC_NOPM, 0, 0, &sn95031_input1_mux_control),
SND_SOC_DAPM_MUX("Txpath2 Capture Route",
SND_SOC_NOPM, 0, 0, &sn95031_input2_mux_control),
SND_SOC_DAPM_MUX("Txpath3 Capture Route",
SND_SOC_NOPM, 0, 0, &sn95031_input3_mux_control),
SND_SOC_DAPM_MUX("Txpath4 Capture Route",
SND_SOC_NOPM, 0, 0, &sn95031_input4_mux_control),
};
static const struct snd_soc_dapm_route sn95031_audio_map[] = {
/* headset and earpiece map */
{ "HPOUTL", NULL, "Headset Left Playback" },
{ "HPOUTR", NULL, "Headset Right Playback" },
{ "EPOUT", NULL, "Earpiece Playback" },
{ "Headset Left Playback", NULL, "Headset Left Filter"},
{ "Headset Right Playback", NULL, "Headset Right Filter"},
{ "Earpiece Playback", NULL, "Headset Left Filter"},
{ "Headset Left Filter", NULL, "HSDAC Left"},
{ "Headset Right Filter", NULL, "HSDAC Right"},
{ "HSDAC Left", NULL, "Headset Rail"},
{ "HSDAC Right", NULL, "Headset Rail"},
/* speaker map */
{ "IHFOUTL", "NULL", "Speaker Left Playback"},
{ "IHFOUTR", "NULL", "Speaker Right Playback"},
{ "Speaker Left Playback", NULL, "Speaker Left Filter"},
{ "Speaker Right Playback", NULL, "Speaker Right Filter"},
{ "Speaker Left Filter", NULL, "IHFDAC Left"},
{ "Speaker Right Filter", NULL, "IHFDAC Right"},
{ "IHFDAC Left", NULL, "Speaker Rail"},
{ "IHFDAC Right", NULL, "Speaker Rail"},
/* vibra map */
{ "VIB1OUT", NULL, "Vibra1 Playback"},
{ "Vibra1 Playback", NULL, "Vibra1 DAC"},
{ "VIB2OUT", NULL, "Vibra2 Playback"},
{ "Vibra2 Playback", NULL, "Vibra2 DAC"},
/* lineout */
{ "LINEOUTL", NULL, "Lineout Left Playback"},
{ "LINEOUTR", NULL, "Lineout Right Playback"},
{ "Lineout Left Playback", NULL, "Headset Left Filter"},
{ "Lineout Left Playback", NULL, "Speaker Left Filter"},
{ "Lineout Left Playback", NULL, "Vibra1 DAC"},
{ "Lineout Right Playback", NULL, "Headset Right Filter"},
{ "Lineout Right Playback", NULL, "Speaker Right Filter"},
{ "Lineout Right Playback", NULL, "Vibra2 DAC"},
/* Headset (AMIC1) mic */
{ "AMIC1Bias", NULL, "AMIC1"},
{ "MIC1 Enable", NULL, "AMIC1Bias"},
{ "Mic_InputL Capture Route", "AMIC", "MIC1 Enable"},
/* AMIC2 */
{ "AMIC2Bias", NULL, "AMIC2"},
{ "MIC2 Enable", NULL, "AMIC2Bias"},
{ "Mic_InputR Capture Route", "AMIC", "MIC2 Enable"},
/* Linein */
{ "LineIn Enable Left", NULL, "LINEINL"},
{ "LineIn Enable Right", NULL, "LINEINR"},
{ "Mic_InputL Capture Route", "LineIn", "LineIn Enable Left"},
{ "Mic_InputR Capture Route", "LineIn", "LineIn Enable Right"},
/* ADC connection */
{ "ADC Left", NULL, "Mic_InputL Capture Route"},
{ "ADC Right", NULL, "Mic_InputR Capture Route"},
/*DMIC connections */
{ "DMIC1", NULL, "DMIC12supply"},
{ "DMIC2", NULL, "DMIC12supply"},
{ "DMIC3", NULL, "DMIC34supply"},
{ "DMIC4", NULL, "DMIC34supply"},
{ "DMIC5", NULL, "DMIC56supply"},
{ "DMIC6", NULL, "DMIC56supply"},
{ "DMIC12Bias", NULL, "DMIC1"},
{ "DMIC12Bias", NULL, "DMIC2"},
{ "DMIC34Bias", NULL, "DMIC3"},
{ "DMIC34Bias", NULL, "DMIC4"},
{ "DMIC56Bias", NULL, "DMIC5"},
{ "DMIC56Bias", NULL, "DMIC6"},
/*TX path inputs*/
{ "Txpath1 Capture Route", "ADC Left", "ADC Left"},
{ "Txpath2 Capture Route", "ADC Left", "ADC Left"},
{ "Txpath3 Capture Route", "ADC Left", "ADC Left"},
{ "Txpath4 Capture Route", "ADC Left", "ADC Left"},
{ "Txpath1 Capture Route", "ADC Right", "ADC Right"},
{ "Txpath2 Capture Route", "ADC Right", "ADC Right"},
{ "Txpath3 Capture Route", "ADC Right", "ADC Right"},
{ "Txpath4 Capture Route", "ADC Right", "ADC Right"},
{ "Txpath1 Capture Route", NULL, "DMIC1"},
{ "Txpath2 Capture Route", NULL, "DMIC1"},
{ "Txpath3 Capture Route", NULL, "DMIC1"},
{ "Txpath4 Capture Route", NULL, "DMIC1"},
{ "Txpath1 Capture Route", NULL, "DMIC2"},
{ "Txpath2 Capture Route", NULL, "DMIC2"},
{ "Txpath3 Capture Route", NULL, "DMIC2"},
{ "Txpath4 Capture Route", NULL, "DMIC2"},
{ "Txpath1 Capture Route", NULL, "DMIC3"},
{ "Txpath2 Capture Route", NULL, "DMIC3"},
{ "Txpath3 Capture Route", NULL, "DMIC3"},
{ "Txpath4 Capture Route", NULL, "DMIC3"},
{ "Txpath1 Capture Route", NULL, "DMIC4"},
{ "Txpath2 Capture Route", NULL, "DMIC4"},
{ "Txpath3 Capture Route", NULL, "DMIC4"},
{ "Txpath4 Capture Route", NULL, "DMIC4"},
{ "Txpath1 Capture Route", NULL, "DMIC5"},
{ "Txpath2 Capture Route", NULL, "DMIC5"},
{ "Txpath3 Capture Route", NULL, "DMIC5"},
{ "Txpath4 Capture Route", NULL, "DMIC5"},
{ "Txpath1 Capture Route", NULL, "DMIC6"},
{ "Txpath2 Capture Route", NULL, "DMIC6"},
{ "Txpath3 Capture Route", NULL, "DMIC6"},
{ "Txpath4 Capture Route", NULL, "DMIC6"},
/* tx path */
{ "TX1 Enable", NULL, "Txpath1 Capture Route"},
{ "TX2 Enable", NULL, "Txpath2 Capture Route"},
{ "TX3 Enable", NULL, "Txpath3 Capture Route"},
{ "TX4 Enable", NULL, "Txpath4 Capture Route"},
{ "PCM_Out", NULL, "TX1 Enable"},
{ "PCM_Out", NULL, "TX2 Enable"},
{ "PCM_Out", NULL, "TX3 Enable"},
{ "PCM_Out", NULL, "TX4 Enable"},
};
/* speaker and headset mutes, for audio pops and clicks */
static int sn95031_pcm_hs_mute(struct snd_soc_dai *dai, int mute)
{
snd_soc_update_bits(dai->codec,
SN95031_HSLVOLCTRL, BIT(7), (!mute << 7));
snd_soc_update_bits(dai->codec,
SN95031_HSRVOLCTRL, BIT(7), (!mute << 7));
return 0;
}
static int sn95031_pcm_spkr_mute(struct snd_soc_dai *dai, int mute)
{
snd_soc_update_bits(dai->codec,
SN95031_IHFLVOLCTRL, BIT(7), (!mute << 7));
snd_soc_update_bits(dai->codec,
SN95031_IHFRVOLCTRL, BIT(7), (!mute << 7));
return 0;
}
int sn95031_pcm_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
{
unsigned int format, rate;
switch (params_format(params)) {
case SNDRV_PCM_FORMAT_S16_LE:
format = BIT(4)|BIT(5);
break;
case SNDRV_PCM_FORMAT_S24_LE:
format = 0;
break;
default:
return -EINVAL;
}
snd_soc_update_bits(dai->codec, SN95031_PCM2C2,
BIT(4)|BIT(5), format);
switch (params_rate(params)) {
case 48000:
pr_debug("RATE_48000\n");
rate = 0;
break;
case 44100:
pr_debug("RATE_44100\n");
rate = BIT(7);
break;
default:
pr_err("ERR rate %d\n", params_rate(params));
return -EINVAL;
}
snd_soc_update_bits(dai->codec, SN95031_PCM1C1, BIT(7), rate);
return 0;
}
/* Codec DAI section */
static struct snd_soc_dai_ops sn95031_headset_dai_ops = {
.digital_mute = sn95031_pcm_hs_mute,
.hw_params = sn95031_pcm_hw_params,
};
static struct snd_soc_dai_ops sn95031_speaker_dai_ops = {
.digital_mute = sn95031_pcm_spkr_mute,
.hw_params = sn95031_pcm_hw_params,
};
static struct snd_soc_dai_ops sn95031_vib1_dai_ops = {
.hw_params = sn95031_pcm_hw_params,
};
static struct snd_soc_dai_ops sn95031_vib2_dai_ops = {
.hw_params = sn95031_pcm_hw_params,
};
struct snd_soc_dai_driver sn95031_dais[] = {
{
.name = "SN95031 Headset",
.playback = {
.stream_name = "Headset",
.channels_min = 2,
.channels_max = 2,
.rates = SN95031_RATES,
.formats = SN95031_FORMATS,
},
.capture = {
.stream_name = "Capture",
.channels_min = 1,
.channels_max = 5,
.rates = SN95031_RATES,
.formats = SN95031_FORMATS,
},
.ops = &sn95031_headset_dai_ops,
},
{ .name = "SN95031 Speaker",
.playback = {
.stream_name = "Speaker",
.channels_min = 2,
.channels_max = 2,
.rates = SN95031_RATES,
.formats = SN95031_FORMATS,
},
.ops = &sn95031_speaker_dai_ops,
},
{ .name = "SN95031 Vibra1",
.playback = {
.stream_name = "Vibra1",
.channels_min = 1,
.channels_max = 1,
.rates = SN95031_RATES,
.formats = SN95031_FORMATS,
},
.ops = &sn95031_vib1_dai_ops,
},
{ .name = "SN95031 Vibra2",
.playback = {
.stream_name = "Vibra2",
.channels_min = 1,
.channels_max = 1,
.rates = SN95031_RATES,
.formats = SN95031_FORMATS,
},
.ops = &sn95031_vib2_dai_ops,
},
};
static inline void sn95031_disable_jack_btn(struct snd_soc_codec *codec)
{
snd_soc_write(codec, SN95031_BTNCTRL2, 0x00);
}
static inline void sn95031_enable_jack_btn(struct snd_soc_codec *codec)
{
snd_soc_write(codec, SN95031_BTNCTRL1, 0x77);
snd_soc_write(codec, SN95031_BTNCTRL2, 0x01);
}
static int sn95031_get_headset_state(struct snd_soc_jack *mfld_jack)
{
int micbias = sn95031_get_mic_bias(mfld_jack->codec);
/* Defaulting to HEADSET for now.
* will change after adding soc-jack detection apis */
int jack_type = SND_JACK_HEADSET;
pr_debug("jack type detected = %d\n", jack_type);
if (jack_type == SND_JACK_HEADSET)
sn95031_enable_jack_btn(mfld_jack->codec);
return jack_type;
}
void sn95031_jack_detection(struct mfld_jack_data *jack_data)
{
unsigned int status;
unsigned int mask = SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_HEADSET;
pr_debug("interrupt id read in sram = 0x%x\n", jack_data->intr_id);
if (jack_data->intr_id & 0x1) {
pr_debug("short_push detected\n");
status = SND_JACK_HEADSET | SND_JACK_BTN_0;
} else if (jack_data->intr_id & 0x2) {
pr_debug("long_push detected\n");
status = SND_JACK_HEADSET | SND_JACK_BTN_1;
} else if (jack_data->intr_id & 0x4) {
pr_debug("headset or headphones inserted\n");
status = sn95031_get_headset_state(jack_data->mfld_jack);
} else if (jack_data->intr_id & 0x8) {
pr_debug("headset or headphones removed\n");
status = 0;
sn95031_disable_jack_btn(jack_data->mfld_jack->codec);
} else {
pr_err("unidentified interrupt\n");
return;
}
snd_soc_jack_report(jack_data->mfld_jack, status, mask);
/*button pressed and released so we send explicit button release */
if ((status & SND_JACK_BTN_0) | (status & SND_JACK_BTN_1))
snd_soc_jack_report(jack_data->mfld_jack,
SND_JACK_HEADSET, mask);
}
EXPORT_SYMBOL_GPL(sn95031_jack_detection);
/* codec registration */
static int sn95031_codec_probe(struct snd_soc_codec *codec)
{
int ret;
pr_debug("codec_probe called\n");
codec->dapm.bias_level = SND_SOC_BIAS_OFF;
codec->dapm.idle_bias_off = 1;
/* PCM interface config
* This sets the pcm rx slot conguration to max 6 slots
* for max 4 dais (2 stereo and 2 mono)
*/
snd_soc_write(codec, SN95031_PCM2RXSLOT01, 0x10);
snd_soc_write(codec, SN95031_PCM2RXSLOT23, 0x32);
snd_soc_write(codec, SN95031_PCM2RXSLOT45, 0x54);
snd_soc_write(codec, SN95031_PCM2TXSLOT01, 0x10);
snd_soc_write(codec, SN95031_PCM2TXSLOT23, 0x32);
/* pcm port setting
* This sets the pcm port to slave and clock at 19.2Mhz which
* can support 6slots, sampling rate set per stream in hw-params
*/
snd_soc_write(codec, SN95031_PCM1C1, 0x00);
snd_soc_write(codec, SN95031_PCM2C1, 0x01);
snd_soc_write(codec, SN95031_PCM2C2, 0x0A);
snd_soc_write(codec, SN95031_HSMIXER, BIT(0)|BIT(4));
/* vendor vibra workround, the vibras are muted by
* custom register so unmute them
*/
snd_soc_write(codec, SN95031_SSR5, 0x80);
snd_soc_write(codec, SN95031_SSR6, 0x80);
snd_soc_write(codec, SN95031_VIB1C5, 0x00);
snd_soc_write(codec, SN95031_VIB2C5, 0x00);
/* configure vibras for pcm port */
snd_soc_write(codec, SN95031_VIB1C3, 0x00);
snd_soc_write(codec, SN95031_VIB2C3, 0x00);
/* soft mute ramp time */
snd_soc_write(codec, SN95031_SOFTMUTE, 0x3);
/* fix the initial volume at 1dB,
* default in +9dB,
* 1dB give optimal swing on DAC, amps
*/
snd_soc_write(codec, SN95031_HSLVOLCTRL, 0x08);
snd_soc_write(codec, SN95031_HSRVOLCTRL, 0x08);
snd_soc_write(codec, SN95031_IHFLVOLCTRL, 0x08);
snd_soc_write(codec, SN95031_IHFRVOLCTRL, 0x08);
/* dac mode and lineout workaround */
snd_soc_write(codec, SN95031_SSR2, 0x10);
snd_soc_write(codec, SN95031_SSR3, 0x40);
snd_soc_add_controls(codec, sn95031_snd_controls,
ARRAY_SIZE(sn95031_snd_controls));
ret = snd_soc_dapm_new_controls(&codec->dapm, sn95031_dapm_widgets,
ARRAY_SIZE(sn95031_dapm_widgets));
if (ret)
pr_err("soc_dapm_new_control failed %d", ret);
ret = snd_soc_dapm_add_routes(&codec->dapm, sn95031_audio_map,
ARRAY_SIZE(sn95031_audio_map));
if (ret)
pr_err("soc_dapm_add_routes failed %d", ret);
return ret;
}
static int sn95031_codec_remove(struct snd_soc_codec *codec)
{
pr_debug("codec_remove called\n");
sn95031_set_vaud_bias(codec, SND_SOC_BIAS_OFF);
return 0;
}
struct snd_soc_codec_driver sn95031_codec = {
.probe = sn95031_codec_probe,
.remove = sn95031_codec_remove,
.read = sn95031_read,
.write = sn95031_write,
.set_bias_level = sn95031_set_vaud_bias,
};
static int __devinit sn95031_device_probe(struct platform_device *pdev)
{
pr_debug("codec device probe called for %s\n", dev_name(&pdev->dev));
return snd_soc_register_codec(&pdev->dev, &sn95031_codec,
sn95031_dais, ARRAY_SIZE(sn95031_dais));
}
static int __devexit sn95031_device_remove(struct platform_device *pdev)
{
pr_debug("codec device remove called\n");
snd_soc_unregister_codec(&pdev->dev);
return 0;
}
static struct platform_driver sn95031_codec_driver = {
.driver = {
.name = "sn95031",
.owner = THIS_MODULE,
},
.probe = sn95031_device_probe,
.remove = sn95031_device_remove,
};
static int __init sn95031_init(void)
{
pr_debug("driver init called\n");
return platform_driver_register(&sn95031_codec_driver);
}
module_init(sn95031_init);
static void __exit sn95031_exit(void)
{
pr_debug("driver exit called\n");
platform_driver_unregister(&sn95031_codec_driver);
}
module_exit(sn95031_exit);
MODULE_DESCRIPTION("ASoC TI SN95031 codec driver");
MODULE_AUTHOR("Vinod Koul <vinod.koul@intel.com>");
MODULE_AUTHOR("Harsha Priya <priya.harsha@intel.com>");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:sn95031");
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