338 lines
8.7 KiB
C
338 lines
8.7 KiB
C
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/*
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* ad1980.c -- ALSA Soc AD1980 codec support
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*
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* Copyright: Analog Device Inc.
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* Author: Roy Huang <roy.huang@analog.com>
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* Cliff Cai <cliff.cai@analog.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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/*
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* WARNING:
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*
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* Because Analog Devices Inc. discontinued the ad1980 sound chip since
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* Sep. 2009, this ad1980 driver is not maintained, tested and supported
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* by ADI now.
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*/
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/device.h>
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#include <linux/regmap.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/ac97_codec.h>
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#include <sound/initval.h>
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#include <sound/soc.h>
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static const struct reg_default ad1980_reg_defaults[] = {
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{ 0x02, 0x8000 },
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{ 0x04, 0x8000 },
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{ 0x06, 0x8000 },
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{ 0x0c, 0x8008 },
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{ 0x0e, 0x8008 },
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{ 0x10, 0x8808 },
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{ 0x12, 0x8808 },
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{ 0x16, 0x8808 },
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{ 0x18, 0x8808 },
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{ 0x1a, 0x0000 },
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{ 0x1c, 0x8000 },
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{ 0x20, 0x0000 },
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{ 0x28, 0x03c7 },
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{ 0x2c, 0xbb80 },
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{ 0x2e, 0xbb80 },
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{ 0x30, 0xbb80 },
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{ 0x32, 0xbb80 },
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{ 0x36, 0x8080 },
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{ 0x38, 0x8080 },
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{ 0x3a, 0x2000 },
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{ 0x60, 0x0000 },
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{ 0x62, 0x0000 },
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{ 0x72, 0x0000 },
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{ 0x74, 0x1001 },
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{ 0x76, 0x0000 },
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};
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static bool ad1980_readable_reg(struct device *dev, unsigned int reg)
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{
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switch (reg) {
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case AC97_RESET ... AC97_MASTER_MONO:
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case AC97_PHONE ... AC97_CD:
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case AC97_AUX ... AC97_GENERAL_PURPOSE:
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case AC97_POWERDOWN ... AC97_PCM_LR_ADC_RATE:
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case AC97_SPDIF:
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case AC97_CODEC_CLASS_REV:
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case AC97_PCI_SVID:
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case AC97_AD_CODEC_CFG:
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case AC97_AD_JACK_SPDIF:
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case AC97_AD_SERIAL_CFG:
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case AC97_VENDOR_ID1:
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case AC97_VENDOR_ID2:
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return true;
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default:
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return false;
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}
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}
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static bool ad1980_writeable_reg(struct device *dev, unsigned int reg)
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{
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switch (reg) {
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case AC97_VENDOR_ID1:
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case AC97_VENDOR_ID2:
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return false;
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default:
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return ad1980_readable_reg(dev, reg);
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}
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}
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static const struct regmap_config ad1980_regmap_config = {
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.reg_bits = 16,
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.reg_stride = 2,
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.val_bits = 16,
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.max_register = 0x7e,
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.cache_type = REGCACHE_RBTREE,
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.volatile_reg = regmap_ac97_default_volatile,
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.readable_reg = ad1980_readable_reg,
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.writeable_reg = ad1980_writeable_reg,
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.reg_defaults = ad1980_reg_defaults,
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.num_reg_defaults = ARRAY_SIZE(ad1980_reg_defaults),
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};
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static const char *ad1980_rec_sel[] = {"Mic", "CD", "NC", "AUX", "Line",
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"Stereo Mix", "Mono Mix", "Phone"};
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static SOC_ENUM_DOUBLE_DECL(ad1980_cap_src,
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AC97_REC_SEL, 8, 0, ad1980_rec_sel);
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static const struct snd_kcontrol_new ad1980_snd_ac97_controls[] = {
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SOC_DOUBLE("Master Playback Volume", AC97_MASTER, 8, 0, 31, 1),
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SOC_SINGLE("Master Playback Switch", AC97_MASTER, 15, 1, 1),
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SOC_DOUBLE("Headphone Playback Volume", AC97_HEADPHONE, 8, 0, 31, 1),
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SOC_SINGLE("Headphone Playback Switch", AC97_HEADPHONE, 15, 1, 1),
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SOC_DOUBLE("PCM Playback Volume", AC97_PCM, 8, 0, 31, 1),
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SOC_SINGLE("PCM Playback Switch", AC97_PCM, 15, 1, 1),
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SOC_DOUBLE("PCM Capture Volume", AC97_REC_GAIN, 8, 0, 31, 0),
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SOC_SINGLE("PCM Capture Switch", AC97_REC_GAIN, 15, 1, 1),
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SOC_SINGLE("Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1),
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SOC_SINGLE("Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),
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SOC_SINGLE("Phone Capture Volume", AC97_PHONE, 0, 31, 1),
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SOC_SINGLE("Phone Capture Switch", AC97_PHONE, 15, 1, 1),
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SOC_SINGLE("Mic Volume", AC97_MIC, 0, 31, 1),
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SOC_SINGLE("Mic Switch", AC97_MIC, 15, 1, 1),
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SOC_SINGLE("Stereo Mic Switch", AC97_AD_MISC, 6, 1, 0),
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SOC_DOUBLE("Line HP Swap Switch", AC97_AD_MISC, 10, 5, 1, 0),
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SOC_DOUBLE("Surround Playback Volume", AC97_SURROUND_MASTER, 8, 0, 31, 1),
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SOC_DOUBLE("Surround Playback Switch", AC97_SURROUND_MASTER, 15, 7, 1, 1),
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SOC_DOUBLE("Center/LFE Playback Volume", AC97_CENTER_LFE_MASTER, 8, 0, 31, 1),
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SOC_DOUBLE("Center/LFE Playback Switch", AC97_CENTER_LFE_MASTER, 15, 7, 1, 1),
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SOC_ENUM("Capture Source", ad1980_cap_src),
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SOC_SINGLE("Mic Boost Switch", AC97_MIC, 6, 1, 0),
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};
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static const struct snd_soc_dapm_widget ad1980_dapm_widgets[] = {
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SND_SOC_DAPM_INPUT("MIC1"),
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SND_SOC_DAPM_INPUT("MIC2"),
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SND_SOC_DAPM_INPUT("CD_L"),
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SND_SOC_DAPM_INPUT("CD_R"),
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SND_SOC_DAPM_INPUT("AUX_L"),
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SND_SOC_DAPM_INPUT("AUX_R"),
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SND_SOC_DAPM_INPUT("LINE_IN_L"),
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SND_SOC_DAPM_INPUT("LINE_IN_R"),
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SND_SOC_DAPM_OUTPUT("LFE_OUT"),
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SND_SOC_DAPM_OUTPUT("CENTER_OUT"),
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SND_SOC_DAPM_OUTPUT("LINE_OUT_L"),
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SND_SOC_DAPM_OUTPUT("LINE_OUT_R"),
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SND_SOC_DAPM_OUTPUT("MONO_OUT"),
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SND_SOC_DAPM_OUTPUT("HP_OUT_L"),
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SND_SOC_DAPM_OUTPUT("HP_OUT_R"),
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};
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static const struct snd_soc_dapm_route ad1980_dapm_routes[] = {
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{ "Capture", NULL, "MIC1" },
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{ "Capture", NULL, "MIC2" },
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{ "Capture", NULL, "CD_L" },
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{ "Capture", NULL, "CD_R" },
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{ "Capture", NULL, "AUX_L" },
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{ "Capture", NULL, "AUX_R" },
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{ "Capture", NULL, "LINE_IN_L" },
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{ "Capture", NULL, "LINE_IN_R" },
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{ "LFE_OUT", NULL, "Playback" },
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{ "CENTER_OUT", NULL, "Playback" },
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{ "LINE_OUT_L", NULL, "Playback" },
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{ "LINE_OUT_R", NULL, "Playback" },
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{ "MONO_OUT", NULL, "Playback" },
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{ "HP_OUT_L", NULL, "Playback" },
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{ "HP_OUT_R", NULL, "Playback" },
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};
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static struct snd_soc_dai_driver ad1980_dai = {
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.name = "ad1980-hifi",
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.playback = {
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.stream_name = "Playback",
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.channels_min = 2,
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.channels_max = 6,
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.rates = SNDRV_PCM_RATE_48000,
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.formats = SND_SOC_STD_AC97_FMTS, },
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.capture = {
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.stream_name = "Capture",
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.channels_min = 2,
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.channels_max = 2,
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.rates = SNDRV_PCM_RATE_48000,
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.formats = SND_SOC_STD_AC97_FMTS, },
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};
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#define AD1980_VENDOR_ID 0x41445300
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#define AD1980_VENDOR_MASK 0xffffff00
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static int ad1980_reset(struct snd_soc_codec *codec, int try_warm)
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{
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struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
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unsigned int retry_cnt = 0;
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int ret;
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do {
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ret = snd_ac97_reset(ac97, true, AD1980_VENDOR_ID,
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AD1980_VENDOR_MASK);
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if (ret >= 0)
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return 0;
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/*
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* Set bit 16slot in register 74h, then every slot will has only
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* 16 bits. This command is sent out in 20bit mode, in which
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* case the first nibble of data is eaten by the addr. (Tag is
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* always 16 bit)
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*/
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snd_soc_write(codec, AC97_AD_SERIAL_CFG, 0x9900);
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} while (retry_cnt++ < 10);
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dev_err(codec->dev, "Failed to reset: AC97 link error\n");
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return -EIO;
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}
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static int ad1980_soc_probe(struct snd_soc_codec *codec)
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{
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struct snd_ac97 *ac97;
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struct regmap *regmap;
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int ret;
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u16 vendor_id2;
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u16 ext_status;
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ac97 = snd_soc_new_ac97_codec(codec, 0, 0);
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if (IS_ERR(ac97)) {
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ret = PTR_ERR(ac97);
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dev_err(codec->dev, "Failed to register AC97 codec: %d\n", ret);
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return ret;
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}
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regmap = regmap_init_ac97(ac97, &ad1980_regmap_config);
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if (IS_ERR(regmap)) {
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ret = PTR_ERR(regmap);
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goto err_free_ac97;
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}
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snd_soc_codec_init_regmap(codec, regmap);
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snd_soc_codec_set_drvdata(codec, ac97);
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ret = ad1980_reset(codec, 0);
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if (ret < 0)
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goto reset_err;
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vendor_id2 = snd_soc_read(codec, AC97_VENDOR_ID2);
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if (vendor_id2 == 0x5374) {
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dev_warn(codec->dev,
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"Found AD1981 - only 2/2 IN/OUT Channels supported\n");
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}
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/* unmute captures and playbacks volume */
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snd_soc_write(codec, AC97_MASTER, 0x0000);
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snd_soc_write(codec, AC97_PCM, 0x0000);
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snd_soc_write(codec, AC97_REC_GAIN, 0x0000);
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snd_soc_write(codec, AC97_CENTER_LFE_MASTER, 0x0000);
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snd_soc_write(codec, AC97_SURROUND_MASTER, 0x0000);
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/*power on LFE/CENTER/Surround DACs*/
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ext_status = snd_soc_read(codec, AC97_EXTENDED_STATUS);
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snd_soc_write(codec, AC97_EXTENDED_STATUS, ext_status&~0x3800);
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return 0;
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reset_err:
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snd_soc_codec_exit_regmap(codec);
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err_free_ac97:
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snd_soc_free_ac97_codec(ac97);
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return ret;
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}
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static int ad1980_soc_remove(struct snd_soc_codec *codec)
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{
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struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
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snd_soc_codec_exit_regmap(codec);
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snd_soc_free_ac97_codec(ac97);
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return 0;
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}
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static struct snd_soc_codec_driver soc_codec_dev_ad1980 = {
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.probe = ad1980_soc_probe,
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.remove = ad1980_soc_remove,
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.component_driver = {
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.controls = ad1980_snd_ac97_controls,
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.num_controls = ARRAY_SIZE(ad1980_snd_ac97_controls),
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.dapm_widgets = ad1980_dapm_widgets,
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.num_dapm_widgets = ARRAY_SIZE(ad1980_dapm_widgets),
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.dapm_routes = ad1980_dapm_routes,
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.num_dapm_routes = ARRAY_SIZE(ad1980_dapm_routes),
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},
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};
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static int ad1980_probe(struct platform_device *pdev)
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{
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return snd_soc_register_codec(&pdev->dev,
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&soc_codec_dev_ad1980, &ad1980_dai, 1);
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}
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static int ad1980_remove(struct platform_device *pdev)
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{
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snd_soc_unregister_codec(&pdev->dev);
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return 0;
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}
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static struct platform_driver ad1980_codec_driver = {
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.driver = {
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.name = "ad1980",
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},
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.probe = ad1980_probe,
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.remove = ad1980_remove,
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};
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module_platform_driver(ad1980_codec_driver);
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MODULE_DESCRIPTION("ASoC ad1980 driver (Obsolete)");
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MODULE_AUTHOR("Roy Huang, Cliff Cai");
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MODULE_LICENSE("GPL");
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