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325 lines
8.7 KiB
325 lines
8.7 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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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 Devices Inc. |
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* Author: Roy Huang <[email protected]> |
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* Cliff Cai <[email protected]> |
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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_component *component, int try_warm) |
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{ |
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struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component); |
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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_component_write(component, AC97_AD_SERIAL_CFG, 0x9900); |
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} while (retry_cnt++ < 10); |
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dev_err(component->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_component *component) |
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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_component(component, 0, 0); |
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if (IS_ERR(ac97)) { |
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ret = PTR_ERR(ac97); |
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dev_err(component->dev, "Failed to register AC97 component: %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_component_init_regmap(component, regmap); |
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snd_soc_component_set_drvdata(component, ac97); |
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ret = ad1980_reset(component, 0); |
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if (ret < 0) |
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goto reset_err; |
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vendor_id2 = snd_soc_component_read(component, AC97_VENDOR_ID2); |
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if (vendor_id2 == 0x5374) { |
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dev_warn(component->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_component_write(component, AC97_MASTER, 0x0000); |
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snd_soc_component_write(component, AC97_PCM, 0x0000); |
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snd_soc_component_write(component, AC97_REC_GAIN, 0x0000); |
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snd_soc_component_write(component, AC97_CENTER_LFE_MASTER, 0x0000); |
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snd_soc_component_write(component, AC97_SURROUND_MASTER, 0x0000); |
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/*power on LFE/CENTER/Surround DACs*/ |
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ext_status = snd_soc_component_read(component, AC97_EXTENDED_STATUS); |
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snd_soc_component_write(component, AC97_EXTENDED_STATUS, ext_status&~0x3800); |
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return 0; |
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reset_err: |
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snd_soc_component_exit_regmap(component); |
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err_free_ac97: |
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snd_soc_free_ac97_component(ac97); |
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return ret; |
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} |
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static void ad1980_soc_remove(struct snd_soc_component *component) |
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{ |
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struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component); |
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snd_soc_component_exit_regmap(component); |
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snd_soc_free_ac97_component(ac97); |
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} |
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static const struct snd_soc_component_driver soc_component_dev_ad1980 = { |
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.probe = ad1980_soc_probe, |
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.remove = ad1980_soc_remove, |
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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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.idle_bias_on = 1, |
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.use_pmdown_time = 1, |
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.endianness = 1, |
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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 devm_snd_soc_register_component(&pdev->dev, |
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&soc_component_dev_ad1980, &ad1980_dai, 1); |
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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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}; |
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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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