716 lines
19 KiB
C
716 lines
19 KiB
C
/*
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* wm8510.c -- WM8510 ALSA Soc Audio driver
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*
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* Copyright 2006 Wolfson Microelectronics PLC.
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*
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* Author: Liam Girdwood <lrg@slimlogic.co.uk>
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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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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/kernel.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 <linux/spi/spi.h>
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#include <linux/slab.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/soc.h>
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#include <sound/initval.h>
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#include "wm8510.h"
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/*
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* wm8510 register cache
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* We can't read the WM8510 register space when we are
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* using 2 wire for device control, so we cache them instead.
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*/
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static const u16 wm8510_reg[WM8510_CACHEREGNUM] = {
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0x0000, 0x0000, 0x0000, 0x0000,
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0x0050, 0x0000, 0x0140, 0x0000,
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0x0000, 0x0000, 0x0000, 0x00ff,
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0x0000, 0x0000, 0x0100, 0x00ff,
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0x0000, 0x0000, 0x012c, 0x002c,
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0x002c, 0x002c, 0x002c, 0x0000,
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0x0032, 0x0000, 0x0000, 0x0000,
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0x0000, 0x0000, 0x0000, 0x0000,
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0x0038, 0x000b, 0x0032, 0x0000,
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0x0008, 0x000c, 0x0093, 0x00e9,
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0x0000, 0x0000, 0x0000, 0x0000,
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0x0003, 0x0010, 0x0000, 0x0000,
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0x0000, 0x0002, 0x0001, 0x0000,
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0x0000, 0x0000, 0x0039, 0x0000,
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0x0001,
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};
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#define WM8510_POWER1_BIASEN 0x08
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#define WM8510_POWER1_BUFIOEN 0x10
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#define wm8510_reset(c) snd_soc_write(c, WM8510_RESET, 0)
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/* codec private data */
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struct wm8510_priv {
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enum snd_soc_control_type control_type;
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};
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static const char *wm8510_companding[] = { "Off", "NC", "u-law", "A-law" };
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static const char *wm8510_deemp[] = { "None", "32kHz", "44.1kHz", "48kHz" };
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static const char *wm8510_alc[] = { "ALC", "Limiter" };
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static const struct soc_enum wm8510_enum[] = {
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SOC_ENUM_SINGLE(WM8510_COMP, 1, 4, wm8510_companding), /* adc */
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SOC_ENUM_SINGLE(WM8510_COMP, 3, 4, wm8510_companding), /* dac */
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SOC_ENUM_SINGLE(WM8510_DAC, 4, 4, wm8510_deemp),
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SOC_ENUM_SINGLE(WM8510_ALC3, 8, 2, wm8510_alc),
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};
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static const struct snd_kcontrol_new wm8510_snd_controls[] = {
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SOC_SINGLE("Digital Loopback Switch", WM8510_COMP, 0, 1, 0),
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SOC_ENUM("DAC Companding", wm8510_enum[1]),
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SOC_ENUM("ADC Companding", wm8510_enum[0]),
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SOC_ENUM("Playback De-emphasis", wm8510_enum[2]),
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SOC_SINGLE("DAC Inversion Switch", WM8510_DAC, 0, 1, 0),
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SOC_SINGLE("Master Playback Volume", WM8510_DACVOL, 0, 127, 0),
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SOC_SINGLE("High Pass Filter Switch", WM8510_ADC, 8, 1, 0),
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SOC_SINGLE("High Pass Cut Off", WM8510_ADC, 4, 7, 0),
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SOC_SINGLE("ADC Inversion Switch", WM8510_COMP, 0, 1, 0),
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SOC_SINGLE("Capture Volume", WM8510_ADCVOL, 0, 127, 0),
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SOC_SINGLE("DAC Playback Limiter Switch", WM8510_DACLIM1, 8, 1, 0),
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SOC_SINGLE("DAC Playback Limiter Decay", WM8510_DACLIM1, 4, 15, 0),
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SOC_SINGLE("DAC Playback Limiter Attack", WM8510_DACLIM1, 0, 15, 0),
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SOC_SINGLE("DAC Playback Limiter Threshold", WM8510_DACLIM2, 4, 7, 0),
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SOC_SINGLE("DAC Playback Limiter Boost", WM8510_DACLIM2, 0, 15, 0),
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SOC_SINGLE("ALC Enable Switch", WM8510_ALC1, 8, 1, 0),
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SOC_SINGLE("ALC Capture Max Gain", WM8510_ALC1, 3, 7, 0),
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SOC_SINGLE("ALC Capture Min Gain", WM8510_ALC1, 0, 7, 0),
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SOC_SINGLE("ALC Capture ZC Switch", WM8510_ALC2, 8, 1, 0),
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SOC_SINGLE("ALC Capture Hold", WM8510_ALC2, 4, 7, 0),
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SOC_SINGLE("ALC Capture Target", WM8510_ALC2, 0, 15, 0),
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SOC_ENUM("ALC Capture Mode", wm8510_enum[3]),
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SOC_SINGLE("ALC Capture Decay", WM8510_ALC3, 4, 15, 0),
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SOC_SINGLE("ALC Capture Attack", WM8510_ALC3, 0, 15, 0),
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SOC_SINGLE("ALC Capture Noise Gate Switch", WM8510_NGATE, 3, 1, 0),
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SOC_SINGLE("ALC Capture Noise Gate Threshold", WM8510_NGATE, 0, 7, 0),
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SOC_SINGLE("Capture PGA ZC Switch", WM8510_INPPGA, 7, 1, 0),
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SOC_SINGLE("Capture PGA Volume", WM8510_INPPGA, 0, 63, 0),
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SOC_SINGLE("Speaker Playback ZC Switch", WM8510_SPKVOL, 7, 1, 0),
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SOC_SINGLE("Speaker Playback Switch", WM8510_SPKVOL, 6, 1, 1),
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SOC_SINGLE("Speaker Playback Volume", WM8510_SPKVOL, 0, 63, 0),
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SOC_SINGLE("Speaker Boost", WM8510_OUTPUT, 2, 1, 0),
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SOC_SINGLE("Capture Boost(+20dB)", WM8510_ADCBOOST, 8, 1, 0),
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SOC_SINGLE("Mono Playback Switch", WM8510_MONOMIX, 6, 1, 1),
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};
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/* Speaker Output Mixer */
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static const struct snd_kcontrol_new wm8510_speaker_mixer_controls[] = {
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SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_SPKMIX, 1, 1, 0),
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SOC_DAPM_SINGLE("Aux Playback Switch", WM8510_SPKMIX, 5, 1, 0),
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SOC_DAPM_SINGLE("PCM Playback Switch", WM8510_SPKMIX, 0, 1, 0),
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};
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/* Mono Output Mixer */
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static const struct snd_kcontrol_new wm8510_mono_mixer_controls[] = {
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SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_MONOMIX, 1, 1, 0),
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SOC_DAPM_SINGLE("Aux Playback Switch", WM8510_MONOMIX, 2, 1, 0),
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SOC_DAPM_SINGLE("PCM Playback Switch", WM8510_MONOMIX, 0, 1, 0),
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};
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static const struct snd_kcontrol_new wm8510_boost_controls[] = {
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SOC_DAPM_SINGLE("Mic PGA Switch", WM8510_INPPGA, 6, 1, 1),
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SOC_DAPM_SINGLE("Aux Volume", WM8510_ADCBOOST, 0, 7, 0),
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SOC_DAPM_SINGLE("Mic Volume", WM8510_ADCBOOST, 4, 7, 0),
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};
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static const struct snd_kcontrol_new wm8510_micpga_controls[] = {
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SOC_DAPM_SINGLE("MICP Switch", WM8510_INPUT, 0, 1, 0),
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SOC_DAPM_SINGLE("MICN Switch", WM8510_INPUT, 1, 1, 0),
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SOC_DAPM_SINGLE("AUX Switch", WM8510_INPUT, 2, 1, 0),
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};
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static const struct snd_soc_dapm_widget wm8510_dapm_widgets[] = {
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SND_SOC_DAPM_MIXER("Speaker Mixer", WM8510_POWER3, 2, 0,
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&wm8510_speaker_mixer_controls[0],
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ARRAY_SIZE(wm8510_speaker_mixer_controls)),
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SND_SOC_DAPM_MIXER("Mono Mixer", WM8510_POWER3, 3, 0,
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&wm8510_mono_mixer_controls[0],
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ARRAY_SIZE(wm8510_mono_mixer_controls)),
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SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8510_POWER3, 0, 0),
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SND_SOC_DAPM_ADC("ADC", "HiFi Capture", WM8510_POWER2, 0, 0),
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SND_SOC_DAPM_PGA("Aux Input", WM8510_POWER1, 6, 0, NULL, 0),
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SND_SOC_DAPM_PGA("SpkN Out", WM8510_POWER3, 5, 0, NULL, 0),
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SND_SOC_DAPM_PGA("SpkP Out", WM8510_POWER3, 6, 0, NULL, 0),
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SND_SOC_DAPM_PGA("Mono Out", WM8510_POWER3, 7, 0, NULL, 0),
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SND_SOC_DAPM_MIXER("Mic PGA", WM8510_POWER2, 2, 0,
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&wm8510_micpga_controls[0],
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ARRAY_SIZE(wm8510_micpga_controls)),
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SND_SOC_DAPM_MIXER("Boost Mixer", WM8510_POWER2, 4, 0,
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&wm8510_boost_controls[0],
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ARRAY_SIZE(wm8510_boost_controls)),
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SND_SOC_DAPM_MICBIAS("Mic Bias", WM8510_POWER1, 4, 0),
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SND_SOC_DAPM_INPUT("MICN"),
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SND_SOC_DAPM_INPUT("MICP"),
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SND_SOC_DAPM_INPUT("AUX"),
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SND_SOC_DAPM_OUTPUT("MONOOUT"),
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SND_SOC_DAPM_OUTPUT("SPKOUTP"),
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SND_SOC_DAPM_OUTPUT("SPKOUTN"),
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};
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static const struct snd_soc_dapm_route audio_map[] = {
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/* Mono output mixer */
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{"Mono Mixer", "PCM Playback Switch", "DAC"},
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{"Mono Mixer", "Aux Playback Switch", "Aux Input"},
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{"Mono Mixer", "Line Bypass Switch", "Boost Mixer"},
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/* Speaker output mixer */
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{"Speaker Mixer", "PCM Playback Switch", "DAC"},
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{"Speaker Mixer", "Aux Playback Switch", "Aux Input"},
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{"Speaker Mixer", "Line Bypass Switch", "Boost Mixer"},
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/* Outputs */
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{"Mono Out", NULL, "Mono Mixer"},
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{"MONOOUT", NULL, "Mono Out"},
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{"SpkN Out", NULL, "Speaker Mixer"},
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{"SpkP Out", NULL, "Speaker Mixer"},
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{"SPKOUTN", NULL, "SpkN Out"},
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{"SPKOUTP", NULL, "SpkP Out"},
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/* Microphone PGA */
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{"Mic PGA", "MICN Switch", "MICN"},
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{"Mic PGA", "MICP Switch", "MICP"},
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{ "Mic PGA", "AUX Switch", "Aux Input" },
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/* Boost Mixer */
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{"Boost Mixer", "Mic PGA Switch", "Mic PGA"},
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{"Boost Mixer", "Mic Volume", "MICP"},
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{"Boost Mixer", "Aux Volume", "Aux Input"},
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{"ADC", NULL, "Boost Mixer"},
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};
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static int wm8510_add_widgets(struct snd_soc_codec *codec)
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{
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struct snd_soc_dapm_context *dapm = &codec->dapm;
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snd_soc_dapm_new_controls(dapm, wm8510_dapm_widgets,
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ARRAY_SIZE(wm8510_dapm_widgets));
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snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
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return 0;
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}
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struct pll_ {
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unsigned int pre_div:4; /* prescale - 1 */
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unsigned int n:4;
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unsigned int k;
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};
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static struct pll_ pll_div;
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/* The size in bits of the pll divide multiplied by 10
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* to allow rounding later */
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#define FIXED_PLL_SIZE ((1 << 24) * 10)
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static void pll_factors(unsigned int target, unsigned int source)
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{
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unsigned long long Kpart;
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unsigned int K, Ndiv, Nmod;
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Ndiv = target / source;
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if (Ndiv < 6) {
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source >>= 1;
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pll_div.pre_div = 1;
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Ndiv = target / source;
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} else
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pll_div.pre_div = 0;
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if ((Ndiv < 6) || (Ndiv > 12))
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printk(KERN_WARNING
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"WM8510 N value %u outwith recommended range!d\n",
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Ndiv);
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pll_div.n = Ndiv;
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Nmod = target % source;
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Kpart = FIXED_PLL_SIZE * (long long)Nmod;
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do_div(Kpart, source);
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K = Kpart & 0xFFFFFFFF;
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/* Check if we need to round */
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if ((K % 10) >= 5)
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K += 5;
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/* Move down to proper range now rounding is done */
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K /= 10;
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pll_div.k = K;
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}
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static int wm8510_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
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int source, unsigned int freq_in, unsigned int freq_out)
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{
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struct snd_soc_codec *codec = codec_dai->codec;
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u16 reg;
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if (freq_in == 0 || freq_out == 0) {
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/* Clock CODEC directly from MCLK */
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reg = snd_soc_read(codec, WM8510_CLOCK);
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snd_soc_write(codec, WM8510_CLOCK, reg & 0x0ff);
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/* Turn off PLL */
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reg = snd_soc_read(codec, WM8510_POWER1);
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snd_soc_write(codec, WM8510_POWER1, reg & 0x1df);
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return 0;
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}
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pll_factors(freq_out*4, freq_in);
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snd_soc_write(codec, WM8510_PLLN, (pll_div.pre_div << 4) | pll_div.n);
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snd_soc_write(codec, WM8510_PLLK1, pll_div.k >> 18);
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snd_soc_write(codec, WM8510_PLLK2, (pll_div.k >> 9) & 0x1ff);
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snd_soc_write(codec, WM8510_PLLK3, pll_div.k & 0x1ff);
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reg = snd_soc_read(codec, WM8510_POWER1);
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snd_soc_write(codec, WM8510_POWER1, reg | 0x020);
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/* Run CODEC from PLL instead of MCLK */
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reg = snd_soc_read(codec, WM8510_CLOCK);
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snd_soc_write(codec, WM8510_CLOCK, reg | 0x100);
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return 0;
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}
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/*
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* Configure WM8510 clock dividers.
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*/
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static int wm8510_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
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int div_id, int div)
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{
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struct snd_soc_codec *codec = codec_dai->codec;
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u16 reg;
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switch (div_id) {
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case WM8510_OPCLKDIV:
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reg = snd_soc_read(codec, WM8510_GPIO) & 0x1cf;
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snd_soc_write(codec, WM8510_GPIO, reg | div);
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break;
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case WM8510_MCLKDIV:
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reg = snd_soc_read(codec, WM8510_CLOCK) & 0x11f;
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snd_soc_write(codec, WM8510_CLOCK, reg | div);
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break;
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case WM8510_ADCCLK:
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reg = snd_soc_read(codec, WM8510_ADC) & 0x1f7;
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snd_soc_write(codec, WM8510_ADC, reg | div);
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break;
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case WM8510_DACCLK:
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reg = snd_soc_read(codec, WM8510_DAC) & 0x1f7;
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snd_soc_write(codec, WM8510_DAC, reg | div);
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break;
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case WM8510_BCLKDIV:
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reg = snd_soc_read(codec, WM8510_CLOCK) & 0x1e3;
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snd_soc_write(codec, WM8510_CLOCK, reg | div);
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break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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static int wm8510_set_dai_fmt(struct snd_soc_dai *codec_dai,
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unsigned int fmt)
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{
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struct snd_soc_codec *codec = codec_dai->codec;
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u16 iface = 0;
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u16 clk = snd_soc_read(codec, WM8510_CLOCK) & 0x1fe;
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/* set master/slave audio interface */
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switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
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case SND_SOC_DAIFMT_CBM_CFM:
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clk |= 0x0001;
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break;
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case SND_SOC_DAIFMT_CBS_CFS:
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break;
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default:
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return -EINVAL;
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}
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/* interface format */
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switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
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case SND_SOC_DAIFMT_I2S:
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iface |= 0x0010;
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break;
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case SND_SOC_DAIFMT_RIGHT_J:
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break;
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case SND_SOC_DAIFMT_LEFT_J:
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iface |= 0x0008;
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break;
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case SND_SOC_DAIFMT_DSP_A:
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iface |= 0x00018;
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break;
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default:
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return -EINVAL;
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}
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/* clock inversion */
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switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
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case SND_SOC_DAIFMT_NB_NF:
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break;
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case SND_SOC_DAIFMT_IB_IF:
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iface |= 0x0180;
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break;
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case SND_SOC_DAIFMT_IB_NF:
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iface |= 0x0100;
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break;
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case SND_SOC_DAIFMT_NB_IF:
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iface |= 0x0080;
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break;
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default:
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return -EINVAL;
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}
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snd_soc_write(codec, WM8510_IFACE, iface);
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snd_soc_write(codec, WM8510_CLOCK, clk);
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return 0;
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}
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static int wm8510_pcm_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params,
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struct snd_soc_dai *dai)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_codec *codec = rtd->codec;
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u16 iface = snd_soc_read(codec, WM8510_IFACE) & 0x19f;
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u16 adn = snd_soc_read(codec, WM8510_ADD) & 0x1f1;
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/* bit size */
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switch (params_format(params)) {
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case SNDRV_PCM_FORMAT_S16_LE:
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break;
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case SNDRV_PCM_FORMAT_S20_3LE:
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iface |= 0x0020;
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break;
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case SNDRV_PCM_FORMAT_S24_LE:
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iface |= 0x0040;
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break;
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case SNDRV_PCM_FORMAT_S32_LE:
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iface |= 0x0060;
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break;
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}
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/* filter coefficient */
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switch (params_rate(params)) {
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case 8000:
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adn |= 0x5 << 1;
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break;
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case 11025:
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adn |= 0x4 << 1;
|
|
break;
|
|
case 16000:
|
|
adn |= 0x3 << 1;
|
|
break;
|
|
case 22050:
|
|
adn |= 0x2 << 1;
|
|
break;
|
|
case 32000:
|
|
adn |= 0x1 << 1;
|
|
break;
|
|
case 44100:
|
|
case 48000:
|
|
break;
|
|
}
|
|
|
|
snd_soc_write(codec, WM8510_IFACE, iface);
|
|
snd_soc_write(codec, WM8510_ADD, adn);
|
|
return 0;
|
|
}
|
|
|
|
static int wm8510_mute(struct snd_soc_dai *dai, int mute)
|
|
{
|
|
struct snd_soc_codec *codec = dai->codec;
|
|
u16 mute_reg = snd_soc_read(codec, WM8510_DAC) & 0xffbf;
|
|
|
|
if (mute)
|
|
snd_soc_write(codec, WM8510_DAC, mute_reg | 0x40);
|
|
else
|
|
snd_soc_write(codec, WM8510_DAC, mute_reg);
|
|
return 0;
|
|
}
|
|
|
|
/* liam need to make this lower power with dapm */
|
|
static int wm8510_set_bias_level(struct snd_soc_codec *codec,
|
|
enum snd_soc_bias_level level)
|
|
{
|
|
u16 power1 = snd_soc_read(codec, WM8510_POWER1) & ~0x3;
|
|
|
|
switch (level) {
|
|
case SND_SOC_BIAS_ON:
|
|
case SND_SOC_BIAS_PREPARE:
|
|
power1 |= 0x1; /* VMID 50k */
|
|
snd_soc_write(codec, WM8510_POWER1, power1);
|
|
break;
|
|
|
|
case SND_SOC_BIAS_STANDBY:
|
|
power1 |= WM8510_POWER1_BIASEN | WM8510_POWER1_BUFIOEN;
|
|
|
|
if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
|
|
/* Initial cap charge at VMID 5k */
|
|
snd_soc_write(codec, WM8510_POWER1, power1 | 0x3);
|
|
mdelay(100);
|
|
}
|
|
|
|
power1 |= 0x2; /* VMID 500k */
|
|
snd_soc_write(codec, WM8510_POWER1, power1);
|
|
break;
|
|
|
|
case SND_SOC_BIAS_OFF:
|
|
snd_soc_write(codec, WM8510_POWER1, 0);
|
|
snd_soc_write(codec, WM8510_POWER2, 0);
|
|
snd_soc_write(codec, WM8510_POWER3, 0);
|
|
break;
|
|
}
|
|
|
|
codec->dapm.bias_level = level;
|
|
return 0;
|
|
}
|
|
|
|
#define WM8510_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
|
|
SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
|
|
SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
|
|
|
|
#define WM8510_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
|
|
SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
|
|
|
|
static struct snd_soc_dai_ops wm8510_dai_ops = {
|
|
.hw_params = wm8510_pcm_hw_params,
|
|
.digital_mute = wm8510_mute,
|
|
.set_fmt = wm8510_set_dai_fmt,
|
|
.set_clkdiv = wm8510_set_dai_clkdiv,
|
|
.set_pll = wm8510_set_dai_pll,
|
|
};
|
|
|
|
static struct snd_soc_dai_driver wm8510_dai = {
|
|
.name = "wm8510-hifi",
|
|
.playback = {
|
|
.stream_name = "Playback",
|
|
.channels_min = 2,
|
|
.channels_max = 2,
|
|
.rates = WM8510_RATES,
|
|
.formats = WM8510_FORMATS,},
|
|
.capture = {
|
|
.stream_name = "Capture",
|
|
.channels_min = 2,
|
|
.channels_max = 2,
|
|
.rates = WM8510_RATES,
|
|
.formats = WM8510_FORMATS,},
|
|
.ops = &wm8510_dai_ops,
|
|
.symmetric_rates = 1,
|
|
};
|
|
|
|
static int wm8510_suspend(struct snd_soc_codec *codec, pm_message_t state)
|
|
{
|
|
wm8510_set_bias_level(codec, SND_SOC_BIAS_OFF);
|
|
return 0;
|
|
}
|
|
|
|
static int wm8510_resume(struct snd_soc_codec *codec)
|
|
{
|
|
int i;
|
|
u8 data[2];
|
|
u16 *cache = codec->reg_cache;
|
|
|
|
/* Sync reg_cache with the hardware */
|
|
for (i = 0; i < ARRAY_SIZE(wm8510_reg); i++) {
|
|
data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001);
|
|
data[1] = cache[i] & 0x00ff;
|
|
codec->hw_write(codec->control_data, data, 2);
|
|
}
|
|
wm8510_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int wm8510_probe(struct snd_soc_codec *codec)
|
|
{
|
|
struct wm8510_priv *wm8510 = snd_soc_codec_get_drvdata(codec);
|
|
int ret;
|
|
|
|
ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8510->control_type);
|
|
if (ret < 0) {
|
|
printk(KERN_ERR "wm8510: failed to set cache I/O: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
wm8510_reset(codec);
|
|
|
|
/* power on device */
|
|
wm8510_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
|
|
snd_soc_add_controls(codec, wm8510_snd_controls,
|
|
ARRAY_SIZE(wm8510_snd_controls));
|
|
wm8510_add_widgets(codec);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* power down chip */
|
|
static int wm8510_remove(struct snd_soc_codec *codec)
|
|
{
|
|
struct wm8510_priv *wm8510 = snd_soc_codec_get_drvdata(codec);
|
|
|
|
wm8510_set_bias_level(codec, SND_SOC_BIAS_OFF);
|
|
kfree(wm8510);
|
|
return 0;
|
|
}
|
|
|
|
static struct snd_soc_codec_driver soc_codec_dev_wm8510 = {
|
|
.probe = wm8510_probe,
|
|
.remove = wm8510_remove,
|
|
.suspend = wm8510_suspend,
|
|
.resume = wm8510_resume,
|
|
.set_bias_level = wm8510_set_bias_level,
|
|
.reg_cache_size = ARRAY_SIZE(wm8510_reg),
|
|
.reg_word_size = sizeof(u16),
|
|
.reg_cache_default =wm8510_reg,
|
|
};
|
|
|
|
#if defined(CONFIG_SPI_MASTER)
|
|
static int __devinit wm8510_spi_probe(struct spi_device *spi)
|
|
{
|
|
struct wm8510_priv *wm8510;
|
|
int ret;
|
|
|
|
wm8510 = kzalloc(sizeof(struct wm8510_priv), GFP_KERNEL);
|
|
if (wm8510 == NULL)
|
|
return -ENOMEM;
|
|
|
|
wm8510->control_type = SND_SOC_SPI;
|
|
spi_set_drvdata(spi, wm8510);
|
|
|
|
ret = snd_soc_register_codec(&spi->dev,
|
|
&soc_codec_dev_wm8510, &wm8510_dai, 1);
|
|
if (ret < 0)
|
|
kfree(wm8510);
|
|
return ret;
|
|
}
|
|
|
|
static int __devexit wm8510_spi_remove(struct spi_device *spi)
|
|
{
|
|
snd_soc_unregister_codec(&spi->dev);
|
|
return 0;
|
|
}
|
|
|
|
static struct spi_driver wm8510_spi_driver = {
|
|
.driver = {
|
|
.name = "wm8510",
|
|
.owner = THIS_MODULE,
|
|
},
|
|
.probe = wm8510_spi_probe,
|
|
.remove = __devexit_p(wm8510_spi_remove),
|
|
};
|
|
#endif /* CONFIG_SPI_MASTER */
|
|
|
|
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
|
|
static __devinit int wm8510_i2c_probe(struct i2c_client *i2c,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
struct wm8510_priv *wm8510;
|
|
int ret;
|
|
|
|
wm8510 = kzalloc(sizeof(struct wm8510_priv), GFP_KERNEL);
|
|
if (wm8510 == NULL)
|
|
return -ENOMEM;
|
|
|
|
i2c_set_clientdata(i2c, wm8510);
|
|
wm8510->control_type = SND_SOC_I2C;
|
|
|
|
ret = snd_soc_register_codec(&i2c->dev,
|
|
&soc_codec_dev_wm8510, &wm8510_dai, 1);
|
|
if (ret < 0)
|
|
kfree(wm8510);
|
|
return ret;
|
|
}
|
|
|
|
static __devexit int wm8510_i2c_remove(struct i2c_client *client)
|
|
{
|
|
snd_soc_unregister_codec(&client->dev);
|
|
return 0;
|
|
}
|
|
|
|
static const struct i2c_device_id wm8510_i2c_id[] = {
|
|
{ "wm8510", 0 },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, wm8510_i2c_id);
|
|
|
|
static struct i2c_driver wm8510_i2c_driver = {
|
|
.driver = {
|
|
.name = "wm8510-codec",
|
|
.owner = THIS_MODULE,
|
|
},
|
|
.probe = wm8510_i2c_probe,
|
|
.remove = __devexit_p(wm8510_i2c_remove),
|
|
.id_table = wm8510_i2c_id,
|
|
};
|
|
#endif
|
|
|
|
static int __init wm8510_modinit(void)
|
|
{
|
|
int ret = 0;
|
|
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
|
|
ret = i2c_add_driver(&wm8510_i2c_driver);
|
|
if (ret != 0) {
|
|
printk(KERN_ERR "Failed to register WM8510 I2C driver: %d\n",
|
|
ret);
|
|
}
|
|
#endif
|
|
#if defined(CONFIG_SPI_MASTER)
|
|
ret = spi_register_driver(&wm8510_spi_driver);
|
|
if (ret != 0) {
|
|
printk(KERN_ERR "Failed to register WM8510 SPI driver: %d\n",
|
|
ret);
|
|
}
|
|
#endif
|
|
return ret;
|
|
}
|
|
module_init(wm8510_modinit);
|
|
|
|
static void __exit wm8510_exit(void)
|
|
{
|
|
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
|
|
i2c_del_driver(&wm8510_i2c_driver);
|
|
#endif
|
|
#if defined(CONFIG_SPI_MASTER)
|
|
spi_unregister_driver(&wm8510_spi_driver);
|
|
#endif
|
|
}
|
|
module_exit(wm8510_exit);
|
|
|
|
MODULE_DESCRIPTION("ASoC WM8510 driver");
|
|
MODULE_AUTHOR("Liam Girdwood");
|
|
MODULE_LICENSE("GPL");
|