64089b84ab
Currently this is done at module probe time since ASoC ties in codec device probe to the instantiation of the entire ASoC device. Subsequent patches will refactor the codec drivers to handle probing separately. Note that the core does not yet use this information. AC97 is special since the codec is controlled over the AC97 link but we want to give the machine driver a chance to set up the system before trying to instantiate since it may need to do configuration before the AC97 link will operate Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
1826 lines
51 KiB
C
1826 lines
51 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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struct wm8903_priv {
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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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/* 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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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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}
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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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}
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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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}
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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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{
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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_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);
|
|
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;
|
|
}
|
|
|
|
/*
|
|
* initialise the WM8903 driver
|
|
* register the mixer and dsp interfaces with the kernel
|
|
*/
|
|
static int wm8903_init(struct snd_soc_device *socdev)
|
|
{
|
|
struct snd_soc_codec *codec = socdev->codec;
|
|
struct i2c_client *i2c = codec->control_data;
|
|
int ret = 0;
|
|
u16 val;
|
|
|
|
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;
|
|
}
|
|
|
|
codec->name = "WM8903";
|
|
codec->owner = THIS_MODULE;
|
|
codec->read = wm8903_read;
|
|
codec->write = wm8903_write;
|
|
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_defaults);
|
|
codec->reg_cache = kmemdup(wm8903_reg_defaults,
|
|
sizeof(wm8903_reg_defaults),
|
|
GFP_KERNEL);
|
|
if (codec->reg_cache == NULL) {
|
|
dev_err(&i2c->dev, "Failed to allocate register cache\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
val = wm8903_read(codec, WM8903_REVISION_NUMBER);
|
|
dev_info(&i2c->dev, "WM8903 revision %d\n",
|
|
val & WM8903_CHIP_REV_MASK);
|
|
|
|
wm8903_reset(codec);
|
|
|
|
/* register pcms */
|
|
ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
|
|
if (ret < 0) {
|
|
dev_err(&i2c->dev, "failed to create pcms\n");
|
|
goto pcm_err;
|
|
}
|
|
|
|
/* SYSCLK is required for pretty much anything */
|
|
wm8903_write(codec, WM8903_CLOCK_RATES_2, WM8903_CLK_SYS_ENA);
|
|
|
|
/* 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_add_controls(codec);
|
|
wm8903_add_widgets(codec);
|
|
ret = snd_soc_init_card(socdev);
|
|
if (ret < 0) {
|
|
dev_err(&i2c->dev, "wm8903: failed to register card\n");
|
|
goto card_err;
|
|
}
|
|
|
|
return ret;
|
|
|
|
card_err:
|
|
snd_soc_free_pcms(socdev);
|
|
snd_soc_dapm_free(socdev);
|
|
pcm_err:
|
|
kfree(codec->reg_cache);
|
|
return ret;
|
|
}
|
|
|
|
static struct snd_soc_device *wm8903_socdev;
|
|
|
|
static int wm8903_i2c_probe(struct i2c_client *i2c,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
struct snd_soc_device *socdev = wm8903_socdev;
|
|
struct snd_soc_codec *codec = socdev->codec;
|
|
int ret;
|
|
|
|
i2c_set_clientdata(i2c, codec);
|
|
codec->control_data = i2c;
|
|
|
|
ret = wm8903_init(socdev);
|
|
if (ret < 0)
|
|
dev_err(&i2c->dev, "Device initialisation failed\n");
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int wm8903_i2c_remove(struct i2c_client *client)
|
|
{
|
|
struct snd_soc_codec *codec = i2c_get_clientdata(client);
|
|
kfree(codec->reg_cache);
|
|
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);
|
|
struct wm8903_setup_data *setup;
|
|
struct snd_soc_codec *codec;
|
|
struct wm8903_priv *wm8903;
|
|
struct i2c_board_info board_info;
|
|
struct i2c_adapter *adapter;
|
|
struct i2c_client *i2c_client;
|
|
int ret = 0;
|
|
|
|
setup = socdev->codec_data;
|
|
|
|
if (!setup->i2c_address) {
|
|
dev_err(&pdev->dev, "No codec address provided\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
|
|
if (codec == NULL)
|
|
return -ENOMEM;
|
|
|
|
wm8903 = kzalloc(sizeof(struct wm8903_priv), GFP_KERNEL);
|
|
if (wm8903 == NULL) {
|
|
ret = -ENOMEM;
|
|
goto err_codec;
|
|
}
|
|
|
|
codec->private_data = wm8903;
|
|
socdev->codec = codec;
|
|
mutex_init(&codec->mutex);
|
|
INIT_LIST_HEAD(&codec->dapm_widgets);
|
|
INIT_LIST_HEAD(&codec->dapm_paths);
|
|
|
|
wm8903_socdev = socdev;
|
|
|
|
codec->hw_write = (hw_write_t)i2c_master_send;
|
|
ret = i2c_add_driver(&wm8903_i2c_driver);
|
|
if (ret != 0) {
|
|
dev_err(&pdev->dev, "can't add i2c driver\n");
|
|
goto err_priv;
|
|
} else {
|
|
memset(&board_info, 0, sizeof(board_info));
|
|
strlcpy(board_info.type, "wm8903", I2C_NAME_SIZE);
|
|
board_info.addr = setup->i2c_address;
|
|
|
|
adapter = i2c_get_adapter(setup->i2c_bus);
|
|
if (!adapter) {
|
|
dev_err(&pdev->dev, "Can't get I2C bus %d\n",
|
|
setup->i2c_bus);
|
|
ret = -ENODEV;
|
|
goto err_adapter;
|
|
}
|
|
|
|
i2c_client = i2c_new_device(adapter, &board_info);
|
|
i2c_put_adapter(adapter);
|
|
if (i2c_client == NULL) {
|
|
dev_err(&pdev->dev,
|
|
"I2C driver registration failed\n");
|
|
ret = -ENODEV;
|
|
goto err_adapter;
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
|
|
err_adapter:
|
|
i2c_del_driver(&wm8903_i2c_driver);
|
|
err_priv:
|
|
kfree(codec->private_data);
|
|
err_codec:
|
|
kfree(codec);
|
|
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);
|
|
i2c_unregister_device(socdev->codec->control_data);
|
|
i2c_del_driver(&wm8903_i2c_driver);
|
|
kfree(codec->private_data);
|
|
kfree(codec);
|
|
|
|
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 __devinit wm8903_modinit(void)
|
|
{
|
|
return snd_soc_register_dai(&wm8903_dai);
|
|
}
|
|
module_init(wm8903_modinit);
|
|
|
|
static void __exit wm8903_exit(void)
|
|
{
|
|
snd_soc_unregister_dai(&wm8903_dai);
|
|
}
|
|
module_exit(wm8903_exit);
|
|
|
|
MODULE_DESCRIPTION("ASoC WM8903 driver");
|
|
MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.cm>");
|
|
MODULE_LICENSE("GPL");
|