3b1228abc9
This will save some additional power. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
1795 lines
50 KiB
C
1795 lines
50 KiB
C
/*
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* wm8903.c -- WM8903 ALSA SoC Audio driver
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*
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* Copyright 2008 Wolfson Microelectronics
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*
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* Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* TODO:
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* - TDM mode configuration.
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* - Mic detect.
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* - Digital microphone support.
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* - Interrupt support (mic detect and sequencer).
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/pm.h>
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#include <linux/i2c.h>
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#include <linux/platform_device.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/tlv.h>
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#include <sound/soc.h>
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#include <sound/soc-dapm.h>
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#include <sound/initval.h>
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#include "wm8903.h"
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/* Register defaults at reset */
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static u16 wm8903_reg_defaults[] = {
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0x8903, /* R0 - SW Reset and ID */
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0x0000, /* R1 - Revision Number */
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0x0000, /* R2 */
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0x0000, /* R3 */
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0x0018, /* R4 - Bias Control 0 */
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0x0000, /* R5 - VMID Control 0 */
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0x0000, /* R6 - Mic Bias Control 0 */
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0x0000, /* R7 */
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0x0001, /* R8 - Analogue DAC 0 */
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0x0000, /* R9 */
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0x0001, /* R10 - Analogue ADC 0 */
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0x0000, /* R11 */
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0x0000, /* R12 - Power Management 0 */
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0x0000, /* R13 - Power Management 1 */
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0x0000, /* R14 - Power Management 2 */
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0x0000, /* R15 - Power Management 3 */
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0x0000, /* R16 - Power Management 4 */
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0x0000, /* R17 - Power Management 5 */
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0x0000, /* R18 - Power Management 6 */
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0x0000, /* R19 */
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0x0400, /* R20 - Clock Rates 0 */
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0x0D07, /* R21 - Clock Rates 1 */
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0x0000, /* R22 - Clock Rates 2 */
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0x0000, /* R23 */
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0x0050, /* R24 - Audio Interface 0 */
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0x0242, /* R25 - Audio Interface 1 */
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0x0008, /* R26 - Audio Interface 2 */
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0x0022, /* R27 - Audio Interface 3 */
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0x0000, /* R28 */
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0x0000, /* R29 */
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0x00C0, /* R30 - DAC Digital Volume Left */
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0x00C0, /* R31 - DAC Digital Volume Right */
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0x0000, /* R32 - DAC Digital 0 */
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0x0000, /* R33 - DAC Digital 1 */
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0x0000, /* R34 */
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0x0000, /* R35 */
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0x00C0, /* R36 - ADC Digital Volume Left */
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0x00C0, /* R37 - ADC Digital Volume Right */
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0x0000, /* R38 - ADC Digital 0 */
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0x0073, /* R39 - Digital Microphone 0 */
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0x09BF, /* R40 - DRC 0 */
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0x3241, /* R41 - DRC 1 */
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0x0020, /* R42 - DRC 2 */
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0x0000, /* R43 - DRC 3 */
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0x0085, /* R44 - Analogue Left Input 0 */
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0x0085, /* R45 - Analogue Right Input 0 */
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0x0044, /* R46 - Analogue Left Input 1 */
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0x0044, /* R47 - Analogue Right Input 1 */
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0x0000, /* R48 */
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0x0000, /* R49 */
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0x0008, /* R50 - Analogue Left Mix 0 */
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0x0004, /* R51 - Analogue Right Mix 0 */
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0x0000, /* R52 - Analogue Spk Mix Left 0 */
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0x0000, /* R53 - Analogue Spk Mix Left 1 */
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0x0000, /* R54 - Analogue Spk Mix Right 0 */
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0x0000, /* R55 - Analogue Spk Mix Right 1 */
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0x0000, /* R56 */
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0x002D, /* R57 - Analogue OUT1 Left */
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0x002D, /* R58 - Analogue OUT1 Right */
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0x0039, /* R59 - Analogue OUT2 Left */
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0x0039, /* R60 - Analogue OUT2 Right */
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0x0100, /* R61 */
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0x0139, /* R62 - Analogue OUT3 Left */
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0x0139, /* R63 - Analogue OUT3 Right */
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0x0000, /* R64 */
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0x0000, /* R65 - Analogue SPK Output Control 0 */
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0x0000, /* R66 */
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0x0010, /* R67 - DC Servo 0 */
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0x0100, /* R68 */
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0x00A4, /* R69 - DC Servo 2 */
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0x0807, /* R70 */
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0x0000, /* R71 */
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0x0000, /* R72 */
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0x0000, /* R73 */
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0x0000, /* R74 */
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0x0000, /* R75 */
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0x0000, /* R76 */
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0x0000, /* R77 */
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0x0000, /* R78 */
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0x000E, /* R79 */
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0x0000, /* R80 */
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0x0000, /* R81 */
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0x0000, /* R82 */
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0x0000, /* R83 */
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0x0000, /* R84 */
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0x0000, /* R85 */
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0x0000, /* R86 */
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0x0006, /* R87 */
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0x0000, /* R88 */
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0x0000, /* R89 */
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0x0000, /* R90 - Analogue HP 0 */
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0x0060, /* R91 */
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0x0000, /* R92 */
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0x0000, /* R93 */
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0x0000, /* R94 - Analogue Lineout 0 */
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0x0060, /* R95 */
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0x0000, /* R96 */
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0x0000, /* R97 */
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0x0000, /* R98 - Charge Pump 0 */
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0x1F25, /* R99 */
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0x2B19, /* R100 */
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0x01C0, /* R101 */
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0x01EF, /* R102 */
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0x2B00, /* R103 */
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0x0000, /* R104 - Class W 0 */
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0x01C0, /* R105 */
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0x1C10, /* R106 */
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0x0000, /* R107 */
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0x0000, /* R108 - Write Sequencer 0 */
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0x0000, /* R109 - Write Sequencer 1 */
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0x0000, /* R110 - Write Sequencer 2 */
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0x0000, /* R111 - Write Sequencer 3 */
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0x0000, /* R112 - Write Sequencer 4 */
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0x0000, /* R113 */
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0x0000, /* R114 - Control Interface */
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0x0000, /* R115 */
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0x00A8, /* R116 - GPIO Control 1 */
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0x00A8, /* R117 - GPIO Control 2 */
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0x00A8, /* R118 - GPIO Control 3 */
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0x0220, /* R119 - GPIO Control 4 */
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0x01A0, /* R120 - GPIO Control 5 */
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0x0000, /* R121 - Interrupt Status 1 */
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0xFFFF, /* R122 - Interrupt Status 1 Mask */
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0x0000, /* R123 - Interrupt Polarity 1 */
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0x0000, /* R124 */
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0x0003, /* R125 */
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0x0000, /* R126 - Interrupt Control */
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0x0000, /* R127 */
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0x0005, /* R128 */
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0x0000, /* R129 - Control Interface Test 1 */
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0x0000, /* R130 */
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0x0000, /* R131 */
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0x0000, /* R132 */
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0x0000, /* R133 */
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0x0000, /* R134 */
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0x03FF, /* R135 */
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0x0007, /* R136 */
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0x0040, /* R137 */
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0x0000, /* R138 */
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0x0000, /* R139 */
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0x0000, /* R140 */
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0x0000, /* R141 */
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0x0000, /* R142 */
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0x0000, /* R143 */
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0x0000, /* R144 */
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0x0000, /* R145 */
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0x0000, /* R146 */
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0x0000, /* R147 */
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0x4000, /* R148 */
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0x6810, /* R149 - Charge Pump Test 1 */
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0x0004, /* R150 */
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0x0000, /* R151 */
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0x0000, /* R152 */
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0x0000, /* R153 */
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0x0000, /* R154 */
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0x0000, /* R155 */
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0x0000, /* R156 */
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0x0000, /* R157 */
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0x0000, /* R158 */
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0x0000, /* R159 */
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0x0000, /* R160 */
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0x0000, /* R161 */
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0x0000, /* R162 */
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0x0000, /* R163 */
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0x0028, /* R164 - Clock Rate Test 4 */
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0x0004, /* R165 */
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0x0000, /* R166 */
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0x0060, /* R167 */
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0x0000, /* R168 */
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0x0000, /* R169 */
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0x0000, /* R170 */
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0x0000, /* R171 */
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0x0000, /* R172 - Analogue Output Bias 0 */
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};
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struct wm8903_priv {
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struct snd_soc_codec codec;
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u16 reg_cache[ARRAY_SIZE(wm8903_reg_defaults)];
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int sysclk;
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/* Reference counts */
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int charge_pump_users;
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int class_w_users;
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int playback_active;
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int capture_active;
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struct snd_pcm_substream *master_substream;
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struct snd_pcm_substream *slave_substream;
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};
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static unsigned int wm8903_read_reg_cache(struct snd_soc_codec *codec,
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unsigned int reg)
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{
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u16 *cache = codec->reg_cache;
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BUG_ON(reg >= ARRAY_SIZE(wm8903_reg_defaults));
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return cache[reg];
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}
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static unsigned int wm8903_hw_read(struct snd_soc_codec *codec, u8 reg)
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{
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struct i2c_msg xfer[2];
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u16 data;
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int ret;
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struct i2c_client *client = codec->control_data;
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/* Write register */
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xfer[0].addr = client->addr;
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xfer[0].flags = 0;
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xfer[0].len = 1;
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xfer[0].buf = ®
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/* Read data */
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xfer[1].addr = client->addr;
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xfer[1].flags = I2C_M_RD;
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xfer[1].len = 2;
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xfer[1].buf = (u8 *)&data;
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ret = i2c_transfer(client->adapter, xfer, 2);
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if (ret != 2) {
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pr_err("i2c_transfer returned %d\n", ret);
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return 0;
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}
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return (data >> 8) | ((data & 0xff) << 8);
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}
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static unsigned int wm8903_read(struct snd_soc_codec *codec,
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unsigned int reg)
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{
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switch (reg) {
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case WM8903_SW_RESET_AND_ID:
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case WM8903_REVISION_NUMBER:
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case WM8903_INTERRUPT_STATUS_1:
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case WM8903_WRITE_SEQUENCER_4:
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return wm8903_hw_read(codec, reg);
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default:
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return wm8903_read_reg_cache(codec, reg);
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}
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}
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static void wm8903_write_reg_cache(struct snd_soc_codec *codec,
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u16 reg, unsigned int value)
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{
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u16 *cache = codec->reg_cache;
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BUG_ON(reg >= ARRAY_SIZE(wm8903_reg_defaults));
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switch (reg) {
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case WM8903_SW_RESET_AND_ID:
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case WM8903_REVISION_NUMBER:
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break;
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default:
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cache[reg] = value;
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break;
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}
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}
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static int wm8903_write(struct snd_soc_codec *codec, unsigned int reg,
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unsigned int value)
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{
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u8 data[3];
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wm8903_write_reg_cache(codec, reg, value);
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/* Data format is 1 byte of address followed by 2 bytes of data */
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data[0] = reg;
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data[1] = (value >> 8) & 0xff;
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data[2] = value & 0xff;
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if (codec->hw_write(codec->control_data, data, 3) == 2)
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return 0;
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else
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return -EIO;
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}
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static int wm8903_run_sequence(struct snd_soc_codec *codec, unsigned int start)
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{
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u16 reg[5];
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struct i2c_client *i2c = codec->control_data;
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BUG_ON(start > 48);
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/* Enable the sequencer */
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reg[0] = wm8903_read(codec, WM8903_WRITE_SEQUENCER_0);
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reg[0] |= WM8903_WSEQ_ENA;
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wm8903_write(codec, WM8903_WRITE_SEQUENCER_0, reg[0]);
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dev_dbg(&i2c->dev, "Starting sequence at %d\n", start);
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wm8903_write(codec, WM8903_WRITE_SEQUENCER_3,
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start | WM8903_WSEQ_START);
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/* Wait for it to complete. If we have the interrupt wired up then
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* we could block waiting for an interrupt, though polling may still
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* be desirable for diagnostic purposes.
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*/
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do {
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msleep(10);
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reg[4] = wm8903_read(codec, WM8903_WRITE_SEQUENCER_4);
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} while (reg[4] & WM8903_WSEQ_BUSY);
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dev_dbg(&i2c->dev, "Sequence complete\n");
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/* Disable the sequencer again */
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wm8903_write(codec, WM8903_WRITE_SEQUENCER_0,
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reg[0] & ~WM8903_WSEQ_ENA);
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return 0;
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}
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static void wm8903_sync_reg_cache(struct snd_soc_codec *codec, u16 *cache)
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{
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int i;
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/* There really ought to be something better we can do here :/ */
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for (i = 0; i < ARRAY_SIZE(wm8903_reg_defaults); i++)
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cache[i] = wm8903_hw_read(codec, i);
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}
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static void wm8903_reset(struct snd_soc_codec *codec)
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{
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wm8903_write(codec, WM8903_SW_RESET_AND_ID, 0);
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memcpy(codec->reg_cache, wm8903_reg_defaults,
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sizeof(wm8903_reg_defaults));
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}
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#define WM8903_OUTPUT_SHORT 0x8
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#define WM8903_OUTPUT_OUT 0x4
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#define WM8903_OUTPUT_INT 0x2
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#define WM8903_OUTPUT_IN 0x1
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/*
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* Event for headphone and line out amplifier power changes. Special
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* power up/down sequences are required in order to maximise pop/click
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* performance.
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*/
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static int wm8903_output_event(struct snd_soc_dapm_widget *w,
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struct snd_kcontrol *kcontrol, int event)
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{
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struct snd_soc_codec *codec = w->codec;
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struct wm8903_priv *wm8903 = codec->private_data;
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struct i2c_client *i2c = codec->control_data;
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u16 val;
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u16 reg;
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int shift;
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u16 cp_reg = wm8903_read(codec, WM8903_CHARGE_PUMP_0);
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switch (w->reg) {
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case WM8903_POWER_MANAGEMENT_2:
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reg = WM8903_ANALOGUE_HP_0;
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break;
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case WM8903_POWER_MANAGEMENT_3:
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reg = WM8903_ANALOGUE_LINEOUT_0;
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break;
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default:
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BUG();
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return -EINVAL; /* Spurious warning from some compilers */
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}
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switch (w->shift) {
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case 0:
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shift = 0;
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break;
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case 1:
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shift = 4;
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break;
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default:
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BUG();
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return -EINVAL; /* Spurious warning from some compilers */
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}
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if (event & SND_SOC_DAPM_PRE_PMU) {
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val = wm8903_read(codec, reg);
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/* Short the output */
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val &= ~(WM8903_OUTPUT_SHORT << shift);
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wm8903_write(codec, reg, val);
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wm8903->charge_pump_users++;
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dev_dbg(&i2c->dev, "Charge pump use count now %d\n",
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wm8903->charge_pump_users);
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if (wm8903->charge_pump_users == 1) {
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dev_dbg(&i2c->dev, "Enabling charge pump\n");
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wm8903_write(codec, WM8903_CHARGE_PUMP_0,
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cp_reg | WM8903_CP_ENA);
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mdelay(4);
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}
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}
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if (event & SND_SOC_DAPM_POST_PMU) {
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val = wm8903_read(codec, reg);
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val |= (WM8903_OUTPUT_IN << shift);
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wm8903_write(codec, reg, val);
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val |= (WM8903_OUTPUT_INT << shift);
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wm8903_write(codec, reg, val);
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/* Turn on the output ENA_OUTP */
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val |= (WM8903_OUTPUT_OUT << shift);
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wm8903_write(codec, reg, val);
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/* Remove the short */
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val |= (WM8903_OUTPUT_SHORT << shift);
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wm8903_write(codec, reg, val);
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}
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if (event & SND_SOC_DAPM_PRE_PMD) {
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val = wm8903_read(codec, reg);
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/* Short the output */
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val &= ~(WM8903_OUTPUT_SHORT << shift);
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wm8903_write(codec, reg, val);
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/* Then disable the intermediate and output stages */
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val &= ~((WM8903_OUTPUT_OUT | WM8903_OUTPUT_INT |
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WM8903_OUTPUT_IN) << shift);
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wm8903_write(codec, reg, val);
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}
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if (event & SND_SOC_DAPM_POST_PMD) {
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wm8903->charge_pump_users--;
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dev_dbg(&i2c->dev, "Charge pump use count now %d\n",
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wm8903->charge_pump_users);
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if (wm8903->charge_pump_users == 0) {
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dev_dbg(&i2c->dev, "Disabling charge pump\n");
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wm8903_write(codec, WM8903_CHARGE_PUMP_0,
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cp_reg & ~WM8903_CP_ENA);
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}
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}
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return 0;
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}
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/*
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* When used with DAC outputs only the WM8903 charge pump supports
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* operation in class W mode, providing very low power consumption
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* when used with digital sources. Enable and disable this mode
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* automatically depending on the mixer configuration.
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*
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* All the relevant controls are simple switches.
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*/
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static int wm8903_class_w_put(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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|
{
|
|
struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol);
|
|
struct snd_soc_codec *codec = widget->codec;
|
|
struct wm8903_priv *wm8903 = codec->private_data;
|
|
struct i2c_client *i2c = codec->control_data;
|
|
u16 reg;
|
|
int ret;
|
|
|
|
reg = wm8903_read(codec, WM8903_CLASS_W_0);
|
|
|
|
/* Turn it off if we're about to enable bypass */
|
|
if (ucontrol->value.integer.value[0]) {
|
|
if (wm8903->class_w_users == 0) {
|
|
dev_dbg(&i2c->dev, "Disabling Class W\n");
|
|
wm8903_write(codec, WM8903_CLASS_W_0, reg &
|
|
~(WM8903_CP_DYN_FREQ | WM8903_CP_DYN_V));
|
|
}
|
|
wm8903->class_w_users++;
|
|
}
|
|
|
|
/* Implement the change */
|
|
ret = snd_soc_dapm_put_volsw(kcontrol, ucontrol);
|
|
|
|
/* If we've just disabled the last bypass path turn Class W on */
|
|
if (!ucontrol->value.integer.value[0]) {
|
|
if (wm8903->class_w_users == 1) {
|
|
dev_dbg(&i2c->dev, "Enabling Class W\n");
|
|
wm8903_write(codec, WM8903_CLASS_W_0, reg |
|
|
WM8903_CP_DYN_FREQ | WM8903_CP_DYN_V);
|
|
}
|
|
wm8903->class_w_users--;
|
|
}
|
|
|
|
dev_dbg(&i2c->dev, "Bypass use count now %d\n",
|
|
wm8903->class_w_users);
|
|
|
|
return ret;
|
|
}
|
|
|
|
#define SOC_DAPM_SINGLE_W(xname, reg, shift, max, invert) \
|
|
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
|
|
.info = snd_soc_info_volsw, \
|
|
.get = snd_soc_dapm_get_volsw, .put = wm8903_class_w_put, \
|
|
.private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) }
|
|
|
|
|
|
/* ALSA can only do steps of .01dB */
|
|
static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1);
|
|
|
|
static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0);
|
|
|
|
static const DECLARE_TLV_DB_SCALE(drc_tlv_thresh, 0, 75, 0);
|
|
static const DECLARE_TLV_DB_SCALE(drc_tlv_amp, -2250, 75, 0);
|
|
static const DECLARE_TLV_DB_SCALE(drc_tlv_min, 0, 600, 0);
|
|
static const DECLARE_TLV_DB_SCALE(drc_tlv_max, 1200, 600, 0);
|
|
static const DECLARE_TLV_DB_SCALE(drc_tlv_startup, -300, 50, 0);
|
|
|
|
static const char *drc_slope_text[] = {
|
|
"1", "1/2", "1/4", "1/8", "1/16", "0"
|
|
};
|
|
|
|
static const struct soc_enum drc_slope_r0 =
|
|
SOC_ENUM_SINGLE(WM8903_DRC_2, 3, 6, drc_slope_text);
|
|
|
|
static const struct soc_enum drc_slope_r1 =
|
|
SOC_ENUM_SINGLE(WM8903_DRC_2, 0, 6, drc_slope_text);
|
|
|
|
static const char *drc_attack_text[] = {
|
|
"instantaneous",
|
|
"363us", "762us", "1.45ms", "2.9ms", "5.8ms", "11.6ms", "23.2ms",
|
|
"46.4ms", "92.8ms", "185.6ms"
|
|
};
|
|
|
|
static const struct soc_enum drc_attack =
|
|
SOC_ENUM_SINGLE(WM8903_DRC_1, 12, 11, drc_attack_text);
|
|
|
|
static const char *drc_decay_text[] = {
|
|
"186ms", "372ms", "743ms", "1.49s", "2.97s", "5.94s", "11.89s",
|
|
"23.87s", "47.56s"
|
|
};
|
|
|
|
static const struct soc_enum drc_decay =
|
|
SOC_ENUM_SINGLE(WM8903_DRC_1, 8, 9, drc_decay_text);
|
|
|
|
static const char *drc_ff_delay_text[] = {
|
|
"5 samples", "9 samples"
|
|
};
|
|
|
|
static const struct soc_enum drc_ff_delay =
|
|
SOC_ENUM_SINGLE(WM8903_DRC_0, 5, 2, drc_ff_delay_text);
|
|
|
|
static const char *drc_qr_decay_text[] = {
|
|
"0.725ms", "1.45ms", "5.8ms"
|
|
};
|
|
|
|
static const struct soc_enum drc_qr_decay =
|
|
SOC_ENUM_SINGLE(WM8903_DRC_1, 4, 3, drc_qr_decay_text);
|
|
|
|
static const char *drc_smoothing_text[] = {
|
|
"Low", "Medium", "High"
|
|
};
|
|
|
|
static const struct soc_enum drc_smoothing =
|
|
SOC_ENUM_SINGLE(WM8903_DRC_0, 11, 3, drc_smoothing_text);
|
|
|
|
static const char *soft_mute_text[] = {
|
|
"Fast (fs/2)", "Slow (fs/32)"
|
|
};
|
|
|
|
static const struct soc_enum soft_mute =
|
|
SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_1, 10, 2, soft_mute_text);
|
|
|
|
static const char *mute_mode_text[] = {
|
|
"Hard", "Soft"
|
|
};
|
|
|
|
static const struct soc_enum mute_mode =
|
|
SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_1, 9, 2, mute_mode_text);
|
|
|
|
static const char *dac_deemphasis_text[] = {
|
|
"Disabled", "32kHz", "44.1kHz", "48kHz"
|
|
};
|
|
|
|
static const struct soc_enum dac_deemphasis =
|
|
SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_1, 1, 4, dac_deemphasis_text);
|
|
|
|
static const char *companding_text[] = {
|
|
"ulaw", "alaw"
|
|
};
|
|
|
|
static const struct soc_enum dac_companding =
|
|
SOC_ENUM_SINGLE(WM8903_AUDIO_INTERFACE_0, 0, 2, companding_text);
|
|
|
|
static const struct soc_enum adc_companding =
|
|
SOC_ENUM_SINGLE(WM8903_AUDIO_INTERFACE_0, 2, 2, companding_text);
|
|
|
|
static const char *input_mode_text[] = {
|
|
"Single-Ended", "Differential Line", "Differential Mic"
|
|
};
|
|
|
|
static const struct soc_enum linput_mode_enum =
|
|
SOC_ENUM_SINGLE(WM8903_ANALOGUE_LEFT_INPUT_1, 0, 3, input_mode_text);
|
|
|
|
static const struct soc_enum rinput_mode_enum =
|
|
SOC_ENUM_SINGLE(WM8903_ANALOGUE_RIGHT_INPUT_1, 0, 3, input_mode_text);
|
|
|
|
static const char *linput_mux_text[] = {
|
|
"IN1L", "IN2L", "IN3L"
|
|
};
|
|
|
|
static const struct soc_enum linput_enum =
|
|
SOC_ENUM_SINGLE(WM8903_ANALOGUE_LEFT_INPUT_1, 2, 3, linput_mux_text);
|
|
|
|
static const struct soc_enum linput_inv_enum =
|
|
SOC_ENUM_SINGLE(WM8903_ANALOGUE_LEFT_INPUT_1, 4, 3, linput_mux_text);
|
|
|
|
static const char *rinput_mux_text[] = {
|
|
"IN1R", "IN2R", "IN3R"
|
|
};
|
|
|
|
static const struct soc_enum rinput_enum =
|
|
SOC_ENUM_SINGLE(WM8903_ANALOGUE_RIGHT_INPUT_1, 2, 3, rinput_mux_text);
|
|
|
|
static const struct soc_enum rinput_inv_enum =
|
|
SOC_ENUM_SINGLE(WM8903_ANALOGUE_RIGHT_INPUT_1, 4, 3, rinput_mux_text);
|
|
|
|
|
|
static const struct snd_kcontrol_new wm8903_snd_controls[] = {
|
|
|
|
/* Input PGAs - No TLV since the scale depends on PGA mode */
|
|
SOC_SINGLE("Left Input PGA Switch", WM8903_ANALOGUE_LEFT_INPUT_0,
|
|
7, 1, 1),
|
|
SOC_SINGLE("Left Input PGA Volume", WM8903_ANALOGUE_LEFT_INPUT_0,
|
|
0, 31, 0),
|
|
SOC_SINGLE("Left Input PGA Common Mode Switch", WM8903_ANALOGUE_LEFT_INPUT_1,
|
|
6, 1, 0),
|
|
|
|
SOC_SINGLE("Right Input PGA Switch", WM8903_ANALOGUE_RIGHT_INPUT_0,
|
|
7, 1, 1),
|
|
SOC_SINGLE("Right Input PGA Volume", WM8903_ANALOGUE_RIGHT_INPUT_0,
|
|
0, 31, 0),
|
|
SOC_SINGLE("Right Input PGA Common Mode Switch", WM8903_ANALOGUE_RIGHT_INPUT_1,
|
|
6, 1, 0),
|
|
|
|
/* ADCs */
|
|
SOC_SINGLE("DRC Switch", WM8903_DRC_0, 15, 1, 0),
|
|
SOC_ENUM("DRC Compressor Slope R0", drc_slope_r0),
|
|
SOC_ENUM("DRC Compressor Slope R1", drc_slope_r1),
|
|
SOC_SINGLE_TLV("DRC Compressor Threashold Volume", WM8903_DRC_3, 5, 124, 1,
|
|
drc_tlv_thresh),
|
|
SOC_SINGLE_TLV("DRC Volume", WM8903_DRC_3, 0, 30, 1, drc_tlv_amp),
|
|
SOC_SINGLE_TLV("DRC Minimum Gain Volume", WM8903_DRC_1, 2, 3, 1, drc_tlv_min),
|
|
SOC_SINGLE_TLV("DRC Maximum Gain Volume", WM8903_DRC_1, 0, 3, 0, drc_tlv_max),
|
|
SOC_ENUM("DRC Attack Rate", drc_attack),
|
|
SOC_ENUM("DRC Decay Rate", drc_decay),
|
|
SOC_ENUM("DRC FF Delay", drc_ff_delay),
|
|
SOC_SINGLE("DRC Anticlip Switch", WM8903_DRC_0, 1, 1, 0),
|
|
SOC_SINGLE("DRC QR Switch", WM8903_DRC_0, 2, 1, 0),
|
|
SOC_SINGLE_TLV("DRC QR Threashold Volume", WM8903_DRC_0, 6, 3, 0, drc_tlv_max),
|
|
SOC_ENUM("DRC QR Decay Rate", drc_qr_decay),
|
|
SOC_SINGLE("DRC Smoothing Switch", WM8903_DRC_0, 3, 1, 0),
|
|
SOC_SINGLE("DRC Smoothing Hysteresis Switch", WM8903_DRC_0, 0, 1, 0),
|
|
SOC_ENUM("DRC Smoothing Threashold", drc_smoothing),
|
|
SOC_SINGLE_TLV("DRC Startup Volume", WM8903_DRC_0, 6, 18, 0, drc_tlv_startup),
|
|
|
|
SOC_DOUBLE_R_TLV("Digital Capture Volume", WM8903_ADC_DIGITAL_VOLUME_LEFT,
|
|
WM8903_ADC_DIGITAL_VOLUME_RIGHT, 1, 96, 0, digital_tlv),
|
|
SOC_ENUM("ADC Companding Mode", adc_companding),
|
|
SOC_SINGLE("ADC Companding Switch", WM8903_AUDIO_INTERFACE_0, 3, 1, 0),
|
|
|
|
/* DAC */
|
|
SOC_DOUBLE_R_TLV("Digital Playback Volume", WM8903_DAC_DIGITAL_VOLUME_LEFT,
|
|
WM8903_DAC_DIGITAL_VOLUME_RIGHT, 1, 120, 0, digital_tlv),
|
|
SOC_ENUM("DAC Soft Mute Rate", soft_mute),
|
|
SOC_ENUM("DAC Mute Mode", mute_mode),
|
|
SOC_SINGLE("DAC Mono Switch", WM8903_DAC_DIGITAL_1, 12, 1, 0),
|
|
SOC_ENUM("DAC De-emphasis", dac_deemphasis),
|
|
SOC_SINGLE("DAC Sloping Stopband Filter Switch",
|
|
WM8903_DAC_DIGITAL_1, 11, 1, 0),
|
|
SOC_ENUM("DAC Companding Mode", dac_companding),
|
|
SOC_SINGLE("DAC Companding Switch", WM8903_AUDIO_INTERFACE_0, 1, 1, 0),
|
|
|
|
/* Headphones */
|
|
SOC_DOUBLE_R("Headphone Switch",
|
|
WM8903_ANALOGUE_OUT1_LEFT, WM8903_ANALOGUE_OUT1_RIGHT,
|
|
8, 1, 1),
|
|
SOC_DOUBLE_R("Headphone ZC Switch",
|
|
WM8903_ANALOGUE_OUT1_LEFT, WM8903_ANALOGUE_OUT1_RIGHT,
|
|
6, 1, 0),
|
|
SOC_DOUBLE_R_TLV("Headphone Volume",
|
|
WM8903_ANALOGUE_OUT1_LEFT, WM8903_ANALOGUE_OUT1_RIGHT,
|
|
0, 63, 0, out_tlv),
|
|
|
|
/* Line out */
|
|
SOC_DOUBLE_R("Line Out Switch",
|
|
WM8903_ANALOGUE_OUT2_LEFT, WM8903_ANALOGUE_OUT2_RIGHT,
|
|
8, 1, 1),
|
|
SOC_DOUBLE_R("Line Out ZC Switch",
|
|
WM8903_ANALOGUE_OUT2_LEFT, WM8903_ANALOGUE_OUT2_RIGHT,
|
|
6, 1, 0),
|
|
SOC_DOUBLE_R_TLV("Line Out Volume",
|
|
WM8903_ANALOGUE_OUT2_LEFT, WM8903_ANALOGUE_OUT2_RIGHT,
|
|
0, 63, 0, out_tlv),
|
|
|
|
/* Speaker */
|
|
SOC_DOUBLE_R("Speaker Switch",
|
|
WM8903_ANALOGUE_OUT3_LEFT, WM8903_ANALOGUE_OUT3_RIGHT, 8, 1, 1),
|
|
SOC_DOUBLE_R("Speaker ZC Switch",
|
|
WM8903_ANALOGUE_OUT3_LEFT, WM8903_ANALOGUE_OUT3_RIGHT, 6, 1, 0),
|
|
SOC_DOUBLE_R_TLV("Speaker Volume",
|
|
WM8903_ANALOGUE_OUT3_LEFT, WM8903_ANALOGUE_OUT3_RIGHT,
|
|
0, 63, 0, out_tlv),
|
|
};
|
|
|
|
static int wm8903_add_controls(struct snd_soc_codec *codec)
|
|
{
|
|
int err, i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(wm8903_snd_controls); i++) {
|
|
err = snd_ctl_add(codec->card,
|
|
snd_soc_cnew(&wm8903_snd_controls[i],
|
|
codec, NULL));
|
|
if (err < 0)
|
|
return err;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct snd_kcontrol_new linput_mode_mux =
|
|
SOC_DAPM_ENUM("Left Input Mode Mux", linput_mode_enum);
|
|
|
|
static const struct snd_kcontrol_new rinput_mode_mux =
|
|
SOC_DAPM_ENUM("Right Input Mode Mux", rinput_mode_enum);
|
|
|
|
static const struct snd_kcontrol_new linput_mux =
|
|
SOC_DAPM_ENUM("Left Input Mux", linput_enum);
|
|
|
|
static const struct snd_kcontrol_new linput_inv_mux =
|
|
SOC_DAPM_ENUM("Left Inverting Input Mux", linput_inv_enum);
|
|
|
|
static const struct snd_kcontrol_new rinput_mux =
|
|
SOC_DAPM_ENUM("Right Input Mux", rinput_enum);
|
|
|
|
static const struct snd_kcontrol_new rinput_inv_mux =
|
|
SOC_DAPM_ENUM("Right Inverting Input Mux", rinput_inv_enum);
|
|
|
|
static const struct snd_kcontrol_new left_output_mixer[] = {
|
|
SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_LEFT_MIX_0, 3, 1, 0),
|
|
SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_LEFT_MIX_0, 2, 1, 0),
|
|
SOC_DAPM_SINGLE_W("Left Bypass Switch", WM8903_ANALOGUE_LEFT_MIX_0, 1, 1, 0),
|
|
SOC_DAPM_SINGLE_W("Right Bypass Switch", WM8903_ANALOGUE_LEFT_MIX_0, 0, 1, 0),
|
|
};
|
|
|
|
static const struct snd_kcontrol_new right_output_mixer[] = {
|
|
SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 3, 1, 0),
|
|
SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 2, 1, 0),
|
|
SOC_DAPM_SINGLE_W("Left Bypass Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 1, 1, 0),
|
|
SOC_DAPM_SINGLE_W("Right Bypass Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 0, 1, 0),
|
|
};
|
|
|
|
static const struct snd_kcontrol_new left_speaker_mixer[] = {
|
|
SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0, 3, 1, 0),
|
|
SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0, 2, 1, 0),
|
|
SOC_DAPM_SINGLE("Left Bypass Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0, 1, 1, 0),
|
|
SOC_DAPM_SINGLE("Right Bypass Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0,
|
|
0, 1, 0),
|
|
};
|
|
|
|
static const struct snd_kcontrol_new right_speaker_mixer[] = {
|
|
SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0, 3, 1, 0),
|
|
SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0, 2, 1, 0),
|
|
SOC_DAPM_SINGLE("Left Bypass Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0,
|
|
1, 1, 0),
|
|
SOC_DAPM_SINGLE("Right Bypass Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0,
|
|
0, 1, 0),
|
|
};
|
|
|
|
static const struct snd_soc_dapm_widget wm8903_dapm_widgets[] = {
|
|
SND_SOC_DAPM_INPUT("IN1L"),
|
|
SND_SOC_DAPM_INPUT("IN1R"),
|
|
SND_SOC_DAPM_INPUT("IN2L"),
|
|
SND_SOC_DAPM_INPUT("IN2R"),
|
|
SND_SOC_DAPM_INPUT("IN3L"),
|
|
SND_SOC_DAPM_INPUT("IN3R"),
|
|
|
|
SND_SOC_DAPM_OUTPUT("HPOUTL"),
|
|
SND_SOC_DAPM_OUTPUT("HPOUTR"),
|
|
SND_SOC_DAPM_OUTPUT("LINEOUTL"),
|
|
SND_SOC_DAPM_OUTPUT("LINEOUTR"),
|
|
SND_SOC_DAPM_OUTPUT("LOP"),
|
|
SND_SOC_DAPM_OUTPUT("LON"),
|
|
SND_SOC_DAPM_OUTPUT("ROP"),
|
|
SND_SOC_DAPM_OUTPUT("RON"),
|
|
|
|
SND_SOC_DAPM_MICBIAS("Mic Bias", WM8903_MIC_BIAS_CONTROL_0, 0, 0),
|
|
|
|
SND_SOC_DAPM_MUX("Left Input Mux", SND_SOC_NOPM, 0, 0, &linput_mux),
|
|
SND_SOC_DAPM_MUX("Left Input Inverting Mux", SND_SOC_NOPM, 0, 0,
|
|
&linput_inv_mux),
|
|
SND_SOC_DAPM_MUX("Left Input Mode Mux", SND_SOC_NOPM, 0, 0, &linput_mode_mux),
|
|
|
|
SND_SOC_DAPM_MUX("Right Input Mux", SND_SOC_NOPM, 0, 0, &rinput_mux),
|
|
SND_SOC_DAPM_MUX("Right Input Inverting Mux", SND_SOC_NOPM, 0, 0,
|
|
&rinput_inv_mux),
|
|
SND_SOC_DAPM_MUX("Right Input Mode Mux", SND_SOC_NOPM, 0, 0, &rinput_mode_mux),
|
|
|
|
SND_SOC_DAPM_PGA("Left Input PGA", WM8903_POWER_MANAGEMENT_0, 1, 0, NULL, 0),
|
|
SND_SOC_DAPM_PGA("Right Input PGA", WM8903_POWER_MANAGEMENT_0, 0, 0, NULL, 0),
|
|
|
|
SND_SOC_DAPM_ADC("ADCL", "Left HiFi Capture", WM8903_POWER_MANAGEMENT_6, 1, 0),
|
|
SND_SOC_DAPM_ADC("ADCR", "Right HiFi Capture", WM8903_POWER_MANAGEMENT_6, 0, 0),
|
|
|
|
SND_SOC_DAPM_DAC("DACL", "Left Playback", WM8903_POWER_MANAGEMENT_6, 3, 0),
|
|
SND_SOC_DAPM_DAC("DACR", "Right Playback", WM8903_POWER_MANAGEMENT_6, 2, 0),
|
|
|
|
SND_SOC_DAPM_MIXER("Left Output Mixer", WM8903_POWER_MANAGEMENT_1, 1, 0,
|
|
left_output_mixer, ARRAY_SIZE(left_output_mixer)),
|
|
SND_SOC_DAPM_MIXER("Right Output Mixer", WM8903_POWER_MANAGEMENT_1, 0, 0,
|
|
right_output_mixer, ARRAY_SIZE(right_output_mixer)),
|
|
|
|
SND_SOC_DAPM_MIXER("Left Speaker Mixer", WM8903_POWER_MANAGEMENT_4, 1, 0,
|
|
left_speaker_mixer, ARRAY_SIZE(left_speaker_mixer)),
|
|
SND_SOC_DAPM_MIXER("Right Speaker Mixer", WM8903_POWER_MANAGEMENT_4, 0, 0,
|
|
right_speaker_mixer, ARRAY_SIZE(right_speaker_mixer)),
|
|
|
|
SND_SOC_DAPM_PGA_E("Left Headphone Output PGA", WM8903_POWER_MANAGEMENT_2,
|
|
1, 0, NULL, 0, wm8903_output_event,
|
|
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
|
|
SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
|
|
SND_SOC_DAPM_PGA_E("Right Headphone Output PGA", WM8903_POWER_MANAGEMENT_2,
|
|
0, 0, NULL, 0, wm8903_output_event,
|
|
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
|
|
SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
|
|
|
|
SND_SOC_DAPM_PGA_E("Left Line Output PGA", WM8903_POWER_MANAGEMENT_3, 1, 0,
|
|
NULL, 0, wm8903_output_event,
|
|
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
|
|
SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
|
|
SND_SOC_DAPM_PGA_E("Right Line Output PGA", WM8903_POWER_MANAGEMENT_3, 0, 0,
|
|
NULL, 0, wm8903_output_event,
|
|
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
|
|
SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
|
|
|
|
SND_SOC_DAPM_PGA("Left Speaker PGA", WM8903_POWER_MANAGEMENT_5, 1, 0,
|
|
NULL, 0),
|
|
SND_SOC_DAPM_PGA("Right Speaker PGA", WM8903_POWER_MANAGEMENT_5, 0, 0,
|
|
NULL, 0),
|
|
|
|
};
|
|
|
|
static const struct snd_soc_dapm_route intercon[] = {
|
|
|
|
{ "Left Input Mux", "IN1L", "IN1L" },
|
|
{ "Left Input Mux", "IN2L", "IN2L" },
|
|
{ "Left Input Mux", "IN3L", "IN3L" },
|
|
|
|
{ "Left Input Inverting Mux", "IN1L", "IN1L" },
|
|
{ "Left Input Inverting Mux", "IN2L", "IN2L" },
|
|
{ "Left Input Inverting Mux", "IN3L", "IN3L" },
|
|
|
|
{ "Right Input Mux", "IN1R", "IN1R" },
|
|
{ "Right Input Mux", "IN2R", "IN2R" },
|
|
{ "Right Input Mux", "IN3R", "IN3R" },
|
|
|
|
{ "Right Input Inverting Mux", "IN1R", "IN1R" },
|
|
{ "Right Input Inverting Mux", "IN2R", "IN2R" },
|
|
{ "Right Input Inverting Mux", "IN3R", "IN3R" },
|
|
|
|
{ "Left Input Mode Mux", "Single-Ended", "Left Input Inverting Mux" },
|
|
{ "Left Input Mode Mux", "Differential Line",
|
|
"Left Input Mux" },
|
|
{ "Left Input Mode Mux", "Differential Line",
|
|
"Left Input Inverting Mux" },
|
|
{ "Left Input Mode Mux", "Differential Mic",
|
|
"Left Input Mux" },
|
|
{ "Left Input Mode Mux", "Differential Mic",
|
|
"Left Input Inverting Mux" },
|
|
|
|
{ "Right Input Mode Mux", "Single-Ended",
|
|
"Right Input Inverting Mux" },
|
|
{ "Right Input Mode Mux", "Differential Line",
|
|
"Right Input Mux" },
|
|
{ "Right Input Mode Mux", "Differential Line",
|
|
"Right Input Inverting Mux" },
|
|
{ "Right Input Mode Mux", "Differential Mic",
|
|
"Right Input Mux" },
|
|
{ "Right Input Mode Mux", "Differential Mic",
|
|
"Right Input Inverting Mux" },
|
|
|
|
{ "Left Input PGA", NULL, "Left Input Mode Mux" },
|
|
{ "Right Input PGA", NULL, "Right Input Mode Mux" },
|
|
|
|
{ "ADCL", NULL, "Left Input PGA" },
|
|
{ "ADCR", NULL, "Right Input PGA" },
|
|
|
|
{ "Left Output Mixer", "Left Bypass Switch", "Left Input PGA" },
|
|
{ "Left Output Mixer", "Right Bypass Switch", "Right Input PGA" },
|
|
{ "Left Output Mixer", "DACL Switch", "DACL" },
|
|
{ "Left Output Mixer", "DACR Switch", "DACR" },
|
|
|
|
{ "Right Output Mixer", "Left Bypass Switch", "Left Input PGA" },
|
|
{ "Right Output Mixer", "Right Bypass Switch", "Right Input PGA" },
|
|
{ "Right Output Mixer", "DACL Switch", "DACL" },
|
|
{ "Right Output Mixer", "DACR Switch", "DACR" },
|
|
|
|
{ "Left Speaker Mixer", "Left Bypass Switch", "Left Input PGA" },
|
|
{ "Left Speaker Mixer", "Right Bypass Switch", "Right Input PGA" },
|
|
{ "Left Speaker Mixer", "DACL Switch", "DACL" },
|
|
{ "Left Speaker Mixer", "DACR Switch", "DACR" },
|
|
|
|
{ "Right Speaker Mixer", "Left Bypass Switch", "Left Input PGA" },
|
|
{ "Right Speaker Mixer", "Right Bypass Switch", "Right Input PGA" },
|
|
{ "Right Speaker Mixer", "DACL Switch", "DACL" },
|
|
{ "Right Speaker Mixer", "DACR Switch", "DACR" },
|
|
|
|
{ "Left Line Output PGA", NULL, "Left Output Mixer" },
|
|
{ "Right Line Output PGA", NULL, "Right Output Mixer" },
|
|
|
|
{ "Left Headphone Output PGA", NULL, "Left Output Mixer" },
|
|
{ "Right Headphone Output PGA", NULL, "Right Output Mixer" },
|
|
|
|
{ "Left Speaker PGA", NULL, "Left Speaker Mixer" },
|
|
{ "Right Speaker PGA", NULL, "Right Speaker Mixer" },
|
|
|
|
{ "HPOUTL", NULL, "Left Headphone Output PGA" },
|
|
{ "HPOUTR", NULL, "Right Headphone Output PGA" },
|
|
|
|
{ "LINEOUTL", NULL, "Left Line Output PGA" },
|
|
{ "LINEOUTR", NULL, "Right Line Output PGA" },
|
|
|
|
{ "LOP", NULL, "Left Speaker PGA" },
|
|
{ "LON", NULL, "Left Speaker PGA" },
|
|
|
|
{ "ROP", NULL, "Right Speaker PGA" },
|
|
{ "RON", NULL, "Right Speaker PGA" },
|
|
};
|
|
|
|
static int wm8903_add_widgets(struct snd_soc_codec *codec)
|
|
{
|
|
snd_soc_dapm_new_controls(codec, wm8903_dapm_widgets,
|
|
ARRAY_SIZE(wm8903_dapm_widgets));
|
|
|
|
snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon));
|
|
|
|
snd_soc_dapm_new_widgets(codec);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int wm8903_set_bias_level(struct snd_soc_codec *codec,
|
|
enum snd_soc_bias_level level)
|
|
{
|
|
struct i2c_client *i2c = codec->control_data;
|
|
u16 reg, reg2;
|
|
|
|
switch (level) {
|
|
case SND_SOC_BIAS_ON:
|
|
case SND_SOC_BIAS_PREPARE:
|
|
reg = wm8903_read(codec, WM8903_VMID_CONTROL_0);
|
|
reg &= ~(WM8903_VMID_RES_MASK);
|
|
reg |= WM8903_VMID_RES_50K;
|
|
wm8903_write(codec, WM8903_VMID_CONTROL_0, reg);
|
|
break;
|
|
|
|
case SND_SOC_BIAS_STANDBY:
|
|
if (codec->bias_level == SND_SOC_BIAS_OFF) {
|
|
wm8903_write(codec, WM8903_CLOCK_RATES_2,
|
|
WM8903_CLK_SYS_ENA);
|
|
|
|
wm8903_run_sequence(codec, 0);
|
|
wm8903_sync_reg_cache(codec, codec->reg_cache);
|
|
|
|
/* Enable low impedence charge pump output */
|
|
reg = wm8903_read(codec,
|
|
WM8903_CONTROL_INTERFACE_TEST_1);
|
|
wm8903_write(codec, WM8903_CONTROL_INTERFACE_TEST_1,
|
|
reg | WM8903_TEST_KEY);
|
|
reg2 = wm8903_read(codec, WM8903_CHARGE_PUMP_TEST_1);
|
|
wm8903_write(codec, WM8903_CHARGE_PUMP_TEST_1,
|
|
reg2 | WM8903_CP_SW_KELVIN_MODE_MASK);
|
|
wm8903_write(codec, WM8903_CONTROL_INTERFACE_TEST_1,
|
|
reg);
|
|
|
|
/* By default no bypass paths are enabled so
|
|
* enable Class W support.
|
|
*/
|
|
dev_dbg(&i2c->dev, "Enabling Class W\n");
|
|
wm8903_write(codec, WM8903_CLASS_W_0, reg |
|
|
WM8903_CP_DYN_FREQ | WM8903_CP_DYN_V);
|
|
}
|
|
|
|
reg = wm8903_read(codec, WM8903_VMID_CONTROL_0);
|
|
reg &= ~(WM8903_VMID_RES_MASK);
|
|
reg |= WM8903_VMID_RES_250K;
|
|
wm8903_write(codec, WM8903_VMID_CONTROL_0, reg);
|
|
break;
|
|
|
|
case SND_SOC_BIAS_OFF:
|
|
wm8903_run_sequence(codec, 32);
|
|
reg = wm8903_read(codec, WM8903_CLOCK_RATES_2);
|
|
reg &= ~WM8903_CLK_SYS_ENA;
|
|
wm8903_write(codec, WM8903_CLOCK_RATES_2, reg);
|
|
break;
|
|
}
|
|
|
|
codec->bias_level = level;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int wm8903_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 wm8903_priv *wm8903 = codec->private_data;
|
|
|
|
wm8903->sysclk = freq;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int wm8903_set_dai_fmt(struct snd_soc_dai *codec_dai,
|
|
unsigned int fmt)
|
|
{
|
|
struct snd_soc_codec *codec = codec_dai->codec;
|
|
u16 aif1 = wm8903_read(codec, WM8903_AUDIO_INTERFACE_1);
|
|
|
|
aif1 &= ~(WM8903_LRCLK_DIR | WM8903_BCLK_DIR | WM8903_AIF_FMT_MASK |
|
|
WM8903_AIF_LRCLK_INV | WM8903_AIF_BCLK_INV);
|
|
|
|
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
|
|
case SND_SOC_DAIFMT_CBS_CFS:
|
|
break;
|
|
case SND_SOC_DAIFMT_CBS_CFM:
|
|
aif1 |= WM8903_LRCLK_DIR;
|
|
break;
|
|
case SND_SOC_DAIFMT_CBM_CFM:
|
|
aif1 |= WM8903_LRCLK_DIR | WM8903_BCLK_DIR;
|
|
break;
|
|
case SND_SOC_DAIFMT_CBM_CFS:
|
|
aif1 |= WM8903_BCLK_DIR;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
|
|
case SND_SOC_DAIFMT_DSP_A:
|
|
aif1 |= 0x3;
|
|
break;
|
|
case SND_SOC_DAIFMT_DSP_B:
|
|
aif1 |= 0x3 | WM8903_AIF_LRCLK_INV;
|
|
break;
|
|
case SND_SOC_DAIFMT_I2S:
|
|
aif1 |= 0x2;
|
|
break;
|
|
case SND_SOC_DAIFMT_RIGHT_J:
|
|
aif1 |= 0x1;
|
|
break;
|
|
case SND_SOC_DAIFMT_LEFT_J:
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* Clock inversion */
|
|
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
|
|
case SND_SOC_DAIFMT_DSP_A:
|
|
case SND_SOC_DAIFMT_DSP_B:
|
|
/* frame inversion not valid for DSP modes */
|
|
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
|
|
case SND_SOC_DAIFMT_NB_NF:
|
|
break;
|
|
case SND_SOC_DAIFMT_IB_NF:
|
|
aif1 |= WM8903_AIF_BCLK_INV;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
break;
|
|
case SND_SOC_DAIFMT_I2S:
|
|
case SND_SOC_DAIFMT_RIGHT_J:
|
|
case SND_SOC_DAIFMT_LEFT_J:
|
|
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
|
|
case SND_SOC_DAIFMT_NB_NF:
|
|
break;
|
|
case SND_SOC_DAIFMT_IB_IF:
|
|
aif1 |= WM8903_AIF_BCLK_INV | WM8903_AIF_LRCLK_INV;
|
|
break;
|
|
case SND_SOC_DAIFMT_IB_NF:
|
|
aif1 |= WM8903_AIF_BCLK_INV;
|
|
break;
|
|
case SND_SOC_DAIFMT_NB_IF:
|
|
aif1 |= WM8903_AIF_LRCLK_INV;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
wm8903_write(codec, WM8903_AUDIO_INTERFACE_1, aif1);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int wm8903_digital_mute(struct snd_soc_dai *codec_dai, int mute)
|
|
{
|
|
struct snd_soc_codec *codec = codec_dai->codec;
|
|
u16 reg;
|
|
|
|
reg = wm8903_read(codec, WM8903_DAC_DIGITAL_1);
|
|
|
|
if (mute)
|
|
reg |= WM8903_DAC_MUTE;
|
|
else
|
|
reg &= ~WM8903_DAC_MUTE;
|
|
|
|
wm8903_write(codec, WM8903_DAC_DIGITAL_1, reg);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Lookup table for CLK_SYS/fs ratio. 256fs or more is recommended
|
|
* for optimal performance so we list the lower rates first and match
|
|
* on the last match we find. */
|
|
static struct {
|
|
int div;
|
|
int rate;
|
|
int mode;
|
|
int mclk_div;
|
|
} clk_sys_ratios[] = {
|
|
{ 64, 0x0, 0x0, 1 },
|
|
{ 68, 0x0, 0x1, 1 },
|
|
{ 125, 0x0, 0x2, 1 },
|
|
{ 128, 0x1, 0x0, 1 },
|
|
{ 136, 0x1, 0x1, 1 },
|
|
{ 192, 0x2, 0x0, 1 },
|
|
{ 204, 0x2, 0x1, 1 },
|
|
|
|
{ 64, 0x0, 0x0, 2 },
|
|
{ 68, 0x0, 0x1, 2 },
|
|
{ 125, 0x0, 0x2, 2 },
|
|
{ 128, 0x1, 0x0, 2 },
|
|
{ 136, 0x1, 0x1, 2 },
|
|
{ 192, 0x2, 0x0, 2 },
|
|
{ 204, 0x2, 0x1, 2 },
|
|
|
|
{ 250, 0x2, 0x2, 1 },
|
|
{ 256, 0x3, 0x0, 1 },
|
|
{ 272, 0x3, 0x1, 1 },
|
|
{ 384, 0x4, 0x0, 1 },
|
|
{ 408, 0x4, 0x1, 1 },
|
|
{ 375, 0x4, 0x2, 1 },
|
|
{ 512, 0x5, 0x0, 1 },
|
|
{ 544, 0x5, 0x1, 1 },
|
|
{ 500, 0x5, 0x2, 1 },
|
|
{ 768, 0x6, 0x0, 1 },
|
|
{ 816, 0x6, 0x1, 1 },
|
|
{ 750, 0x6, 0x2, 1 },
|
|
{ 1024, 0x7, 0x0, 1 },
|
|
{ 1088, 0x7, 0x1, 1 },
|
|
{ 1000, 0x7, 0x2, 1 },
|
|
{ 1408, 0x8, 0x0, 1 },
|
|
{ 1496, 0x8, 0x1, 1 },
|
|
{ 1536, 0x9, 0x0, 1 },
|
|
{ 1632, 0x9, 0x1, 1 },
|
|
{ 1500, 0x9, 0x2, 1 },
|
|
|
|
{ 250, 0x2, 0x2, 2 },
|
|
{ 256, 0x3, 0x0, 2 },
|
|
{ 272, 0x3, 0x1, 2 },
|
|
{ 384, 0x4, 0x0, 2 },
|
|
{ 408, 0x4, 0x1, 2 },
|
|
{ 375, 0x4, 0x2, 2 },
|
|
{ 512, 0x5, 0x0, 2 },
|
|
{ 544, 0x5, 0x1, 2 },
|
|
{ 500, 0x5, 0x2, 2 },
|
|
{ 768, 0x6, 0x0, 2 },
|
|
{ 816, 0x6, 0x1, 2 },
|
|
{ 750, 0x6, 0x2, 2 },
|
|
{ 1024, 0x7, 0x0, 2 },
|
|
{ 1088, 0x7, 0x1, 2 },
|
|
{ 1000, 0x7, 0x2, 2 },
|
|
{ 1408, 0x8, 0x0, 2 },
|
|
{ 1496, 0x8, 0x1, 2 },
|
|
{ 1536, 0x9, 0x0, 2 },
|
|
{ 1632, 0x9, 0x1, 2 },
|
|
{ 1500, 0x9, 0x2, 2 },
|
|
};
|
|
|
|
/* CLK_SYS/BCLK ratios - multiplied by 10 due to .5s */
|
|
static struct {
|
|
int ratio;
|
|
int div;
|
|
} bclk_divs[] = {
|
|
{ 10, 0 },
|
|
{ 15, 1 },
|
|
{ 20, 2 },
|
|
{ 30, 3 },
|
|
{ 40, 4 },
|
|
{ 50, 5 },
|
|
{ 55, 6 },
|
|
{ 60, 7 },
|
|
{ 80, 8 },
|
|
{ 100, 9 },
|
|
{ 110, 10 },
|
|
{ 120, 11 },
|
|
{ 160, 12 },
|
|
{ 200, 13 },
|
|
{ 220, 14 },
|
|
{ 240, 15 },
|
|
{ 250, 16 },
|
|
{ 300, 17 },
|
|
{ 320, 18 },
|
|
{ 440, 19 },
|
|
{ 480, 20 },
|
|
};
|
|
|
|
/* Sample rates for DSP */
|
|
static struct {
|
|
int rate;
|
|
int value;
|
|
} sample_rates[] = {
|
|
{ 8000, 0 },
|
|
{ 11025, 1 },
|
|
{ 12000, 2 },
|
|
{ 16000, 3 },
|
|
{ 22050, 4 },
|
|
{ 24000, 5 },
|
|
{ 32000, 6 },
|
|
{ 44100, 7 },
|
|
{ 48000, 8 },
|
|
{ 88200, 9 },
|
|
{ 96000, 10 },
|
|
{ 0, 0 },
|
|
};
|
|
|
|
static int wm8903_startup(struct snd_pcm_substream *substream,
|
|
struct snd_soc_dai *dai)
|
|
{
|
|
struct snd_soc_pcm_runtime *rtd = substream->private_data;
|
|
struct snd_soc_device *socdev = rtd->socdev;
|
|
struct snd_soc_codec *codec = socdev->codec;
|
|
struct wm8903_priv *wm8903 = codec->private_data;
|
|
struct i2c_client *i2c = codec->control_data;
|
|
struct snd_pcm_runtime *master_runtime;
|
|
|
|
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
|
|
wm8903->playback_active++;
|
|
else
|
|
wm8903->capture_active++;
|
|
|
|
/* The DAI has shared clocks so if we already have a playback or
|
|
* capture going then constrain this substream to match it.
|
|
*/
|
|
if (wm8903->master_substream) {
|
|
master_runtime = wm8903->master_substream->runtime;
|
|
|
|
dev_dbg(&i2c->dev, "Constraining to %d bits at %dHz\n",
|
|
master_runtime->sample_bits,
|
|
master_runtime->rate);
|
|
|
|
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);
|
|
|
|
wm8903->slave_substream = substream;
|
|
} else
|
|
wm8903->master_substream = substream;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void wm8903_shutdown(struct snd_pcm_substream *substream,
|
|
struct snd_soc_dai *dai)
|
|
{
|
|
struct snd_soc_pcm_runtime *rtd = substream->private_data;
|
|
struct snd_soc_device *socdev = rtd->socdev;
|
|
struct snd_soc_codec *codec = socdev->codec;
|
|
struct wm8903_priv *wm8903 = codec->private_data;
|
|
|
|
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
|
|
wm8903->playback_active--;
|
|
else
|
|
wm8903->capture_active--;
|
|
|
|
if (wm8903->master_substream == substream)
|
|
wm8903->master_substream = wm8903->slave_substream;
|
|
|
|
wm8903->slave_substream = NULL;
|
|
}
|
|
|
|
static int wm8903_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_device *socdev = rtd->socdev;
|
|
struct snd_soc_codec *codec = socdev->codec;
|
|
struct wm8903_priv *wm8903 = codec->private_data;
|
|
struct i2c_client *i2c = codec->control_data;
|
|
int fs = params_rate(params);
|
|
int bclk;
|
|
int bclk_div;
|
|
int i;
|
|
int dsp_config;
|
|
int clk_config;
|
|
int best_val;
|
|
int cur_val;
|
|
int clk_sys;
|
|
|
|
u16 aif1 = wm8903_read(codec, WM8903_AUDIO_INTERFACE_1);
|
|
u16 aif2 = wm8903_read(codec, WM8903_AUDIO_INTERFACE_2);
|
|
u16 aif3 = wm8903_read(codec, WM8903_AUDIO_INTERFACE_3);
|
|
u16 clock0 = wm8903_read(codec, WM8903_CLOCK_RATES_0);
|
|
u16 clock1 = wm8903_read(codec, WM8903_CLOCK_RATES_1);
|
|
|
|
if (substream == wm8903->slave_substream) {
|
|
dev_dbg(&i2c->dev, "Ignoring hw_params for slave substream\n");
|
|
return 0;
|
|
}
|
|
|
|
/* Configure sample rate logic for DSP - choose nearest rate */
|
|
dsp_config = 0;
|
|
best_val = abs(sample_rates[dsp_config].rate - fs);
|
|
for (i = 1; i < ARRAY_SIZE(sample_rates); i++) {
|
|
cur_val = abs(sample_rates[i].rate - fs);
|
|
if (cur_val <= best_val) {
|
|
dsp_config = i;
|
|
best_val = cur_val;
|
|
}
|
|
}
|
|
|
|
/* Constraints should stop us hitting this but let's make sure */
|
|
if (wm8903->capture_active)
|
|
switch (sample_rates[dsp_config].rate) {
|
|
case 88200:
|
|
case 96000:
|
|
dev_err(&i2c->dev, "%dHz unsupported by ADC\n",
|
|
fs);
|
|
return -EINVAL;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
dev_dbg(&i2c->dev, "DSP fs = %dHz\n", sample_rates[dsp_config].rate);
|
|
clock1 &= ~WM8903_SAMPLE_RATE_MASK;
|
|
clock1 |= sample_rates[dsp_config].value;
|
|
|
|
aif1 &= ~WM8903_AIF_WL_MASK;
|
|
bclk = 2 * fs;
|
|
switch (params_format(params)) {
|
|
case SNDRV_PCM_FORMAT_S16_LE:
|
|
bclk *= 16;
|
|
break;
|
|
case SNDRV_PCM_FORMAT_S20_3LE:
|
|
bclk *= 20;
|
|
aif1 |= 0x4;
|
|
break;
|
|
case SNDRV_PCM_FORMAT_S24_LE:
|
|
bclk *= 24;
|
|
aif1 |= 0x8;
|
|
break;
|
|
case SNDRV_PCM_FORMAT_S32_LE:
|
|
bclk *= 32;
|
|
aif1 |= 0xc;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
dev_dbg(&i2c->dev, "MCLK = %dHz, target sample rate = %dHz\n",
|
|
wm8903->sysclk, fs);
|
|
|
|
/* We may not have an MCLK which allows us to generate exactly
|
|
* the clock we want, particularly with USB derived inputs, so
|
|
* approximate.
|
|
*/
|
|
clk_config = 0;
|
|
best_val = abs((wm8903->sysclk /
|
|
(clk_sys_ratios[0].mclk_div *
|
|
clk_sys_ratios[0].div)) - fs);
|
|
for (i = 1; i < ARRAY_SIZE(clk_sys_ratios); i++) {
|
|
cur_val = abs((wm8903->sysclk /
|
|
(clk_sys_ratios[i].mclk_div *
|
|
clk_sys_ratios[i].div)) - fs);
|
|
|
|
if (cur_val <= best_val) {
|
|
clk_config = i;
|
|
best_val = cur_val;
|
|
}
|
|
}
|
|
|
|
if (clk_sys_ratios[clk_config].mclk_div == 2) {
|
|
clock0 |= WM8903_MCLKDIV2;
|
|
clk_sys = wm8903->sysclk / 2;
|
|
} else {
|
|
clock0 &= ~WM8903_MCLKDIV2;
|
|
clk_sys = wm8903->sysclk;
|
|
}
|
|
|
|
clock1 &= ~(WM8903_CLK_SYS_RATE_MASK |
|
|
WM8903_CLK_SYS_MODE_MASK);
|
|
clock1 |= clk_sys_ratios[clk_config].rate << WM8903_CLK_SYS_RATE_SHIFT;
|
|
clock1 |= clk_sys_ratios[clk_config].mode << WM8903_CLK_SYS_MODE_SHIFT;
|
|
|
|
dev_dbg(&i2c->dev, "CLK_SYS_RATE=%x, CLK_SYS_MODE=%x div=%d\n",
|
|
clk_sys_ratios[clk_config].rate,
|
|
clk_sys_ratios[clk_config].mode,
|
|
clk_sys_ratios[clk_config].div);
|
|
|
|
dev_dbg(&i2c->dev, "Actual CLK_SYS = %dHz\n", clk_sys);
|
|
|
|
/* We may not get quite the right frequency if using
|
|
* approximate clocks so look for the closest match that is
|
|
* higher than the target (we need to ensure that there enough
|
|
* BCLKs to clock out the samples).
|
|
*/
|
|
bclk_div = 0;
|
|
best_val = ((clk_sys * 10) / bclk_divs[0].ratio) - bclk;
|
|
i = 1;
|
|
while (i < ARRAY_SIZE(bclk_divs)) {
|
|
cur_val = ((clk_sys * 10) / bclk_divs[i].ratio) - bclk;
|
|
if (cur_val < 0) /* BCLK table is sorted */
|
|
break;
|
|
bclk_div = i;
|
|
best_val = cur_val;
|
|
i++;
|
|
}
|
|
|
|
aif2 &= ~WM8903_BCLK_DIV_MASK;
|
|
aif3 &= ~WM8903_LRCLK_RATE_MASK;
|
|
|
|
dev_dbg(&i2c->dev, "BCLK ratio %d for %dHz - actual BCLK = %dHz\n",
|
|
bclk_divs[bclk_div].ratio / 10, bclk,
|
|
(clk_sys * 10) / bclk_divs[bclk_div].ratio);
|
|
|
|
aif2 |= bclk_divs[bclk_div].div;
|
|
aif3 |= bclk / fs;
|
|
|
|
wm8903_write(codec, WM8903_CLOCK_RATES_0, clock0);
|
|
wm8903_write(codec, WM8903_CLOCK_RATES_1, clock1);
|
|
wm8903_write(codec, WM8903_AUDIO_INTERFACE_1, aif1);
|
|
wm8903_write(codec, WM8903_AUDIO_INTERFACE_2, aif2);
|
|
wm8903_write(codec, WM8903_AUDIO_INTERFACE_3, aif3);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define WM8903_PLAYBACK_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)
|
|
|
|
#define WM8903_CAPTURE_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)
|
|
|
|
#define WM8903_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
|
|
SNDRV_PCM_FMTBIT_S20_3LE |\
|
|
SNDRV_PCM_FMTBIT_S24_LE)
|
|
|
|
struct snd_soc_dai wm8903_dai = {
|
|
.name = "WM8903",
|
|
.playback = {
|
|
.stream_name = "Playback",
|
|
.channels_min = 2,
|
|
.channels_max = 2,
|
|
.rates = WM8903_PLAYBACK_RATES,
|
|
.formats = WM8903_FORMATS,
|
|
},
|
|
.capture = {
|
|
.stream_name = "Capture",
|
|
.channels_min = 2,
|
|
.channels_max = 2,
|
|
.rates = WM8903_CAPTURE_RATES,
|
|
.formats = WM8903_FORMATS,
|
|
},
|
|
.ops = {
|
|
.startup = wm8903_startup,
|
|
.shutdown = wm8903_shutdown,
|
|
.hw_params = wm8903_hw_params,
|
|
.digital_mute = wm8903_digital_mute,
|
|
.set_fmt = wm8903_set_dai_fmt,
|
|
.set_sysclk = wm8903_set_dai_sysclk
|
|
}
|
|
};
|
|
EXPORT_SYMBOL_GPL(wm8903_dai);
|
|
|
|
static int wm8903_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;
|
|
|
|
wm8903_set_bias_level(codec, SND_SOC_BIAS_OFF);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int wm8903_resume(struct platform_device *pdev)
|
|
{
|
|
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
|
|
struct snd_soc_codec *codec = socdev->codec;
|
|
struct i2c_client *i2c = codec->control_data;
|
|
int i;
|
|
u16 *reg_cache = codec->reg_cache;
|
|
u16 *tmp_cache = kmemdup(codec->reg_cache, sizeof(wm8903_reg_defaults),
|
|
GFP_KERNEL);
|
|
|
|
/* Bring the codec back up to standby first to minimise pop/clicks */
|
|
wm8903_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
|
|
wm8903_set_bias_level(codec, codec->suspend_bias_level);
|
|
|
|
/* Sync back everything else */
|
|
if (tmp_cache) {
|
|
for (i = 2; i < ARRAY_SIZE(wm8903_reg_defaults); i++)
|
|
if (tmp_cache[i] != reg_cache[i])
|
|
wm8903_write(codec, i, tmp_cache[i]);
|
|
} else {
|
|
dev_err(&i2c->dev, "Failed to allocate temporary cache\n");
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct snd_soc_codec *wm8903_codec;
|
|
|
|
static int wm8903_i2c_probe(struct i2c_client *i2c,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
struct wm8903_priv *wm8903;
|
|
struct snd_soc_codec *codec;
|
|
int ret;
|
|
u16 val;
|
|
|
|
wm8903 = kzalloc(sizeof(struct wm8903_priv), GFP_KERNEL);
|
|
if (wm8903 == NULL)
|
|
return -ENOMEM;
|
|
|
|
codec = &wm8903->codec;
|
|
|
|
mutex_init(&codec->mutex);
|
|
INIT_LIST_HEAD(&codec->dapm_widgets);
|
|
INIT_LIST_HEAD(&codec->dapm_paths);
|
|
|
|
codec->dev = &i2c->dev;
|
|
codec->name = "WM8903";
|
|
codec->owner = THIS_MODULE;
|
|
codec->read = wm8903_read;
|
|
codec->write = wm8903_write;
|
|
codec->hw_write = (hw_write_t)i2c_master_send;
|
|
codec->bias_level = SND_SOC_BIAS_OFF;
|
|
codec->set_bias_level = wm8903_set_bias_level;
|
|
codec->dai = &wm8903_dai;
|
|
codec->num_dai = 1;
|
|
codec->reg_cache_size = ARRAY_SIZE(wm8903->reg_cache);
|
|
codec->reg_cache = &wm8903->reg_cache[0];
|
|
codec->private_data = wm8903;
|
|
|
|
i2c_set_clientdata(i2c, codec);
|
|
codec->control_data = i2c;
|
|
|
|
val = wm8903_hw_read(codec, WM8903_SW_RESET_AND_ID);
|
|
if (val != wm8903_reg_defaults[WM8903_SW_RESET_AND_ID]) {
|
|
dev_err(&i2c->dev,
|
|
"Device with ID register %x is not a WM8903\n", val);
|
|
return -ENODEV;
|
|
}
|
|
|
|
val = wm8903_read(codec, WM8903_REVISION_NUMBER);
|
|
dev_info(&i2c->dev, "WM8903 revision %d\n",
|
|
val & WM8903_CHIP_REV_MASK);
|
|
|
|
wm8903_reset(codec);
|
|
|
|
/* power on device */
|
|
wm8903_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
|
|
|
|
/* Latch volume update bits */
|
|
val = wm8903_read(codec, WM8903_ADC_DIGITAL_VOLUME_LEFT);
|
|
val |= WM8903_ADCVU;
|
|
wm8903_write(codec, WM8903_ADC_DIGITAL_VOLUME_LEFT, val);
|
|
wm8903_write(codec, WM8903_ADC_DIGITAL_VOLUME_RIGHT, val);
|
|
|
|
val = wm8903_read(codec, WM8903_DAC_DIGITAL_VOLUME_LEFT);
|
|
val |= WM8903_DACVU;
|
|
wm8903_write(codec, WM8903_DAC_DIGITAL_VOLUME_LEFT, val);
|
|
wm8903_write(codec, WM8903_DAC_DIGITAL_VOLUME_RIGHT, val);
|
|
|
|
val = wm8903_read(codec, WM8903_ANALOGUE_OUT1_LEFT);
|
|
val |= WM8903_HPOUTVU;
|
|
wm8903_write(codec, WM8903_ANALOGUE_OUT1_LEFT, val);
|
|
wm8903_write(codec, WM8903_ANALOGUE_OUT1_RIGHT, val);
|
|
|
|
val = wm8903_read(codec, WM8903_ANALOGUE_OUT2_LEFT);
|
|
val |= WM8903_LINEOUTVU;
|
|
wm8903_write(codec, WM8903_ANALOGUE_OUT2_LEFT, val);
|
|
wm8903_write(codec, WM8903_ANALOGUE_OUT2_RIGHT, val);
|
|
|
|
val = wm8903_read(codec, WM8903_ANALOGUE_OUT3_LEFT);
|
|
val |= WM8903_SPKVU;
|
|
wm8903_write(codec, WM8903_ANALOGUE_OUT3_LEFT, val);
|
|
wm8903_write(codec, WM8903_ANALOGUE_OUT3_RIGHT, val);
|
|
|
|
/* Enable DAC soft mute by default */
|
|
val = wm8903_read(codec, WM8903_DAC_DIGITAL_1);
|
|
val |= WM8903_DAC_MUTEMODE;
|
|
wm8903_write(codec, WM8903_DAC_DIGITAL_1, val);
|
|
|
|
wm8903_dai.dev = &i2c->dev;
|
|
wm8903_codec = codec;
|
|
|
|
ret = snd_soc_register_codec(codec);
|
|
if (ret != 0) {
|
|
dev_err(&i2c->dev, "Failed to register codec: %d\n", ret);
|
|
goto err;
|
|
}
|
|
|
|
ret = snd_soc_register_dai(&wm8903_dai);
|
|
if (ret != 0) {
|
|
dev_err(&i2c->dev, "Failed to register DAI: %d\n", ret);
|
|
goto err_codec;
|
|
}
|
|
|
|
return ret;
|
|
|
|
err_codec:
|
|
snd_soc_unregister_codec(codec);
|
|
err:
|
|
wm8903_codec = NULL;
|
|
kfree(wm8903);
|
|
return ret;
|
|
}
|
|
|
|
static int wm8903_i2c_remove(struct i2c_client *client)
|
|
{
|
|
struct snd_soc_codec *codec = i2c_get_clientdata(client);
|
|
|
|
snd_soc_unregister_dai(&wm8903_dai);
|
|
snd_soc_unregister_codec(codec);
|
|
|
|
wm8903_set_bias_level(codec, SND_SOC_BIAS_OFF);
|
|
|
|
kfree(codec->private_data);
|
|
|
|
wm8903_codec = NULL;
|
|
wm8903_dai.dev = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* i2c codec control layer */
|
|
static const struct i2c_device_id wm8903_i2c_id[] = {
|
|
{ "wm8903", 0 },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, wm8903_i2c_id);
|
|
|
|
static struct i2c_driver wm8903_i2c_driver = {
|
|
.driver = {
|
|
.name = "WM8903",
|
|
.owner = THIS_MODULE,
|
|
},
|
|
.probe = wm8903_i2c_probe,
|
|
.remove = wm8903_i2c_remove,
|
|
.id_table = wm8903_i2c_id,
|
|
};
|
|
|
|
static int wm8903_probe(struct platform_device *pdev)
|
|
{
|
|
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
|
|
int ret = 0;
|
|
|
|
if (!wm8903_codec) {
|
|
dev_err(&pdev->dev, "I2C device not yet probed\n");
|
|
goto err;
|
|
}
|
|
|
|
socdev->codec = wm8903_codec;
|
|
|
|
/* register pcms */
|
|
ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
|
|
if (ret < 0) {
|
|
dev_err(&pdev->dev, "failed to create pcms\n");
|
|
goto err;
|
|
}
|
|
|
|
wm8903_add_controls(socdev->codec);
|
|
wm8903_add_widgets(socdev->codec);
|
|
|
|
ret = snd_soc_init_card(socdev);
|
|
if (ret < 0) {
|
|
dev_err(&pdev->dev, "wm8903: failed to register card\n");
|
|
goto card_err;
|
|
}
|
|
|
|
return ret;
|
|
|
|
card_err:
|
|
snd_soc_free_pcms(socdev);
|
|
snd_soc_dapm_free(socdev);
|
|
err:
|
|
return ret;
|
|
}
|
|
|
|
/* power down chip */
|
|
static int wm8903_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)
|
|
wm8903_set_bias_level(codec, SND_SOC_BIAS_OFF);
|
|
|
|
snd_soc_free_pcms(socdev);
|
|
snd_soc_dapm_free(socdev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
struct snd_soc_codec_device soc_codec_dev_wm8903 = {
|
|
.probe = wm8903_probe,
|
|
.remove = wm8903_remove,
|
|
.suspend = wm8903_suspend,
|
|
.resume = wm8903_resume,
|
|
};
|
|
EXPORT_SYMBOL_GPL(soc_codec_dev_wm8903);
|
|
|
|
static int __init wm8903_modinit(void)
|
|
{
|
|
return i2c_add_driver(&wm8903_i2c_driver);
|
|
}
|
|
module_init(wm8903_modinit);
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static void __exit wm8903_exit(void)
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{
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i2c_del_driver(&wm8903_i2c_driver);
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}
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module_exit(wm8903_exit);
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|
|
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MODULE_DESCRIPTION("ASoC WM8903 driver");
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MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.cm>");
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MODULE_LICENSE("GPL");
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