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linux-stable/sound/soc/codecs/sn95031.c
Lars-Peter Clausen 85e7652d89 ASoC: Constify snd_soc_dai_ops structs 
Commit 1ee46ebd("ASoC: Make the DAI ops constant in the DAI structure")
introduced the possibility to have constant DAI ops structures, yet this is
barley used in both existing drivers and also new drivers being submitted,
although none of them modifies its DAI ops structure. The later is not
surprising since existing drivers are often used as templates for new drivers.
So this patch just constifies all existing snd_soc_dai_ops structs to eliminate
the issue altogether.

The patch was generated with the following coccinelle semantic patch:
// <smpl>
@@
identifier ops;
@@
-struct snd_soc_dai_ops ops =
+const struct snd_soc_dai_ops ops =
{ ... };
// </smpl>

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-11-23 10:40:46 +00:00

941 lines
29 KiB
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Raw Blame History

/*
* 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/delay.h>
#include <linux/slab.h>
#include <linux/module.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 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)
break;
}
return (i == SN95031_ADC_CHANLS_MAX) ? (-EINVAL) : i;
}
/* 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;
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;
}
/*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, 0);
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 Rail"},
{ "HPOUTR", NULL, "Headset Rail"},
{ "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"},
/* speaker map */
{ "IHFOUTL", NULL, "Speaker Rail"},
{ "IHFOUTR", NULL, "Speaker Rail"},
{ "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"},
/* 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", "DMIC1", "DMIC1"},
{ "Txpath2 Capture Route", "DMIC1", "DMIC1"},
{ "Txpath3 Capture Route", "DMIC1", "DMIC1"},
{ "Txpath4 Capture Route", "DMIC1", "DMIC1"},
{ "Txpath1 Capture Route", "DMIC2", "DMIC2"},
{ "Txpath2 Capture Route", "DMIC2", "DMIC2"},
{ "Txpath3 Capture Route", "DMIC2", "DMIC2"},
{ "Txpath4 Capture Route", "DMIC2", "DMIC2"},
{ "Txpath1 Capture Route", "DMIC3", "DMIC3"},
{ "Txpath2 Capture Route", "DMIC3", "DMIC3"},
{ "Txpath3 Capture Route", "DMIC3", "DMIC3"},
{ "Txpath4 Capture Route", "DMIC3", "DMIC3"},
{ "Txpath1 Capture Route", "DMIC4", "DMIC4"},
{ "Txpath2 Capture Route", "DMIC4", "DMIC4"},
{ "Txpath3 Capture Route", "DMIC4", "DMIC4"},
{ "Txpath4 Capture Route", "DMIC4", "DMIC4"},
{ "Txpath1 Capture Route", "DMIC5", "DMIC5"},
{ "Txpath2 Capture Route", "DMIC5", "DMIC5"},
{ "Txpath3 Capture Route", "DMIC5", "DMIC5"},
{ "Txpath4 Capture Route", "DMIC5", "DMIC5"},
{ "Txpath1 Capture Route", "DMIC6", "DMIC6"},
{ "Txpath2 Capture Route", "DMIC6", "DMIC6"},
{ "Txpath3 Capture Route", "DMIC6", "DMIC6"},
{ "Txpath4 Capture Route", "DMIC6", "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;
}
static 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 const struct snd_soc_dai_ops sn95031_headset_dai_ops = {
.digital_mute = sn95031_pcm_hs_mute,
.hw_params = sn95031_pcm_hw_params,
};
static const struct snd_soc_dai_ops sn95031_speaker_dai_ops = {
.digital_mute = sn95031_pcm_spkr_mute,
.hw_params = sn95031_pcm_hw_params,
};
static const struct snd_soc_dai_ops sn95031_vib1_dai_ops = {
.hw_params = sn95031_pcm_hw_params,
};
static const struct snd_soc_dai_ops sn95031_vib2_dai_ops = {
.hw_params = sn95031_pcm_hw_params,
};
static 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);
int jack_type = snd_soc_jack_get_type(mfld_jack, micbias);
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)
{
pr_debug("codec_probe called\n");
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));
return 0;
}
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,
.dapm_widgets = sn95031_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(sn95031_dapm_widgets),
.dapm_routes = sn95031_audio_map,
.num_dapm_routes = ARRAY_SIZE(sn95031_audio_map),
};
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 = __devexit_p(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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