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/*
* ALSA SoC WM9090 driver
*
* Copyright 2009-12 Wolfson Microelectronics
*
* Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/device.h>
#include <linux/i2c.h>
#include <linux/delay.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <sound/initval.h>
#include <sound/soc.h>
#include <sound/tlv.h>
#include <sound/wm9090.h>
#include "wm9090.h"
static const struct reg_default wm9090_reg_defaults[] = {
{ 1, 0x0006 }, /* R1 - Power Management (1) */
{ 2, 0x6000 }, /* R2 - Power Management (2) */
{ 3, 0x0000 }, /* R3 - Power Management (3) */
{ 6, 0x01C0 }, /* R6 - Clocking 1 */
{ 22, 0x0003 }, /* R22 - IN1 Line Control */
{ 23, 0x0003 }, /* R23 - IN2 Line Control */
{ 24, 0x0083 }, /* R24 - IN1 Line Input A Volume */
{ 25, 0x0083 }, /* R25 - IN1 Line Input B Volume */
{ 26, 0x0083 }, /* R26 - IN2 Line Input A Volume */
{ 27, 0x0083 }, /* R27 - IN2 Line Input B Volume */
{ 28, 0x002D }, /* R28 - Left Output Volume */
{ 29, 0x002D }, /* R29 - Right Output Volume */
{ 34, 0x0100 }, /* R34 - SPKMIXL Attenuation */
{ 35, 0x0010 }, /* R36 - SPKOUT Mixers */
{ 37, 0x0140 }, /* R37 - ClassD3 */
{ 38, 0x0039 }, /* R38 - Speaker Volume Left */
{ 45, 0x0000 }, /* R45 - Output Mixer1 */
{ 46, 0x0000 }, /* R46 - Output Mixer2 */
{ 47, 0x0100 }, /* R47 - Output Mixer3 */
{ 48, 0x0100 }, /* R48 - Output Mixer4 */
{ 54, 0x0000 }, /* R54 - Speaker Mixer */
{ 57, 0x000D }, /* R57 - AntiPOP2 */
{ 70, 0x0000 }, /* R70 - Write Sequencer 0 */
{ 71, 0x0000 }, /* R71 - Write Sequencer 1 */
{ 72, 0x0000 }, /* R72 - Write Sequencer 2 */
{ 73, 0x0000 }, /* R73 - Write Sequencer 3 */
{ 74, 0x0000 }, /* R74 - Write Sequencer 4 */
{ 75, 0x0000 }, /* R75 - Write Sequencer 5 */
{ 76, 0x1F25 }, /* R76 - Charge Pump 1 */
{ 85, 0x054A }, /* R85 - DC Servo 1 */
{ 87, 0x0000 }, /* R87 - DC Servo 3 */
{ 96, 0x0100 }, /* R96 - Analogue HP 0 */
{ 98, 0x8640 }, /* R98 - AGC Control 0 */
{ 99, 0xC000 }, /* R99 - AGC Control 1 */
{ 100, 0x0200 }, /* R100 - AGC Control 2 */
};
/* This struct is used to save the context */
struct wm9090_priv {
struct wm9090_platform_data pdata;
struct regmap *regmap;
};
static bool wm9090_volatile(struct device *dev, unsigned int reg)
{
switch (reg) {
case WM9090_SOFTWARE_RESET:
case WM9090_DC_SERVO_0:
case WM9090_DC_SERVO_READBACK_0:
case WM9090_DC_SERVO_READBACK_1:
case WM9090_DC_SERVO_READBACK_2:
return true;
default:
return false;
}
}
static bool wm9090_readable(struct device *dev, unsigned int reg)
{
switch (reg) {
case WM9090_SOFTWARE_RESET:
case WM9090_POWER_MANAGEMENT_1:
case WM9090_POWER_MANAGEMENT_2:
case WM9090_POWER_MANAGEMENT_3:
case WM9090_CLOCKING_1:
case WM9090_IN1_LINE_CONTROL:
case WM9090_IN2_LINE_CONTROL:
case WM9090_IN1_LINE_INPUT_A_VOLUME:
case WM9090_IN1_LINE_INPUT_B_VOLUME:
case WM9090_IN2_LINE_INPUT_A_VOLUME:
case WM9090_IN2_LINE_INPUT_B_VOLUME:
case WM9090_LEFT_OUTPUT_VOLUME:
case WM9090_RIGHT_OUTPUT_VOLUME:
case WM9090_SPKMIXL_ATTENUATION:
case WM9090_SPKOUT_MIXERS:
case WM9090_CLASSD3:
case WM9090_SPEAKER_VOLUME_LEFT:
case WM9090_OUTPUT_MIXER1:
case WM9090_OUTPUT_MIXER2:
case WM9090_OUTPUT_MIXER3:
case WM9090_OUTPUT_MIXER4:
case WM9090_SPEAKER_MIXER:
case WM9090_ANTIPOP2:
case WM9090_WRITE_SEQUENCER_0:
case WM9090_WRITE_SEQUENCER_1:
case WM9090_WRITE_SEQUENCER_2:
case WM9090_WRITE_SEQUENCER_3:
case WM9090_WRITE_SEQUENCER_4:
case WM9090_WRITE_SEQUENCER_5:
case WM9090_CHARGE_PUMP_1:
case WM9090_DC_SERVO_0:
case WM9090_DC_SERVO_1:
case WM9090_DC_SERVO_3:
case WM9090_DC_SERVO_READBACK_0:
case WM9090_DC_SERVO_READBACK_1:
case WM9090_DC_SERVO_READBACK_2:
case WM9090_ANALOGUE_HP_0:
case WM9090_AGC_CONTROL_0:
case WM9090_AGC_CONTROL_1:
case WM9090_AGC_CONTROL_2:
return true;
default:
return false;
}
}
static void wait_for_dc_servo(struct snd_soc_codec *codec)
{
unsigned int reg;
int count = 0;
dev_dbg(codec->dev, "Waiting for DC servo...\n");
do {
count++;
msleep(1);
reg = snd_soc_read(codec, WM9090_DC_SERVO_READBACK_0);
dev_dbg(codec->dev, "DC servo status: %x\n", reg);
} while ((reg & WM9090_DCS_CAL_COMPLETE_MASK)
!= WM9090_DCS_CAL_COMPLETE_MASK && count < 1000);
if ((reg & WM9090_DCS_CAL_COMPLETE_MASK)
!= WM9090_DCS_CAL_COMPLETE_MASK)
dev_err(codec->dev, "Timed out waiting for DC Servo\n");
}
static const unsigned int in_tlv[] = {
TLV_DB_RANGE_HEAD(3),
0, 0, TLV_DB_SCALE_ITEM(-600, 0, 0),
1, 3, TLV_DB_SCALE_ITEM(-350, 350, 0),
4, 6, TLV_DB_SCALE_ITEM(600, 600, 0),
};
static const unsigned int mix_tlv[] = {
TLV_DB_RANGE_HEAD(2),
0, 2, TLV_DB_SCALE_ITEM(-1200, 300, 0),
3, 3, TLV_DB_SCALE_ITEM(0, 0, 0),
};
static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0);
static const unsigned int spkboost_tlv[] = {
TLV_DB_RANGE_HEAD(2),
0, 6, TLV_DB_SCALE_ITEM(0, 150, 0),
7, 7, TLV_DB_SCALE_ITEM(1200, 0, 0),
};
static const struct snd_kcontrol_new wm9090_controls[] = {
SOC_SINGLE_TLV("IN1A Volume", WM9090_IN1_LINE_INPUT_A_VOLUME, 0, 6, 0,
in_tlv),
SOC_SINGLE("IN1A Switch", WM9090_IN1_LINE_INPUT_A_VOLUME, 7, 1, 1),
SOC_SINGLE("IN1A ZC Switch", WM9090_IN1_LINE_INPUT_A_VOLUME, 6, 1, 0),
SOC_SINGLE_TLV("IN2A Volume", WM9090_IN2_LINE_INPUT_A_VOLUME, 0, 6, 0,
in_tlv),
SOC_SINGLE("IN2A Switch", WM9090_IN2_LINE_INPUT_A_VOLUME, 7, 1, 1),
SOC_
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