2bea8f97d4
The AC'97 standard defines paging support for the register range 0x60-0x6f. Meaning registers in this window are mapped to different physical registers depending on the setting of the page select register (0x24). The stac9766 implements support for switching between page 0 and page 1 depending on the addressed register. But the driver never accesses any registers from page 1, in addition page 0 is the page selected by default. Considering the development history it is unlikely that the driver will see any new features that require paging support. Removing the paging support makes transitioning the driver to regmap a bit more straight forward. The default register value table is update to contain the values from page 0, rather than page 1. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Mark Brown <broonie@kernel.org>
354 lines
11 KiB
C
354 lines
11 KiB
C
/*
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* stac9766.c -- ALSA SoC STAC9766 codec support
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*
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* Copyright 2009 Jon Smirl, Digispeaker
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* Author: Jon Smirl <jonsmirl@gmail.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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* Features:-
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*
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* o Support for AC97 Codec, S/PDIF
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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/device.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/pcm_params.h>
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#include <sound/soc.h>
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#include <sound/tlv.h>
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#include "stac9766.h"
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#define STAC9766_VENDOR_ID 0x83847666
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#define STAC9766_VENDOR_ID_MASK 0xffffffff
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/*
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* STAC9766 register cache
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*/
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static const u16 stac9766_reg[] = {
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0x6A90, 0x8000, 0x8000, 0x8000, /* 6 */
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0x0000, 0x0000, 0x8008, 0x8008, /* e */
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0x8808, 0x8808, 0x8808, 0x8808, /* 16 */
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0x8808, 0x0000, 0x8000, 0x0000, /* 1e */
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0x0000, 0x0000, 0x0000, 0x000f, /* 26 */
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0x0a05, 0x0400, 0xbb80, 0x0000, /* 2e */
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0x0000, 0xbb80, 0x0000, 0x0000, /* 36 */
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0x0000, 0x2000, 0x0000, 0x0100, /* 3e */
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0x0000, 0x0000, 0x0080, 0x0000, /* 46 */
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0x0000, 0x0000, 0x0003, 0xffff, /* 4e */
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0x0000, 0x0000, 0x0000, 0x0000, /* 56 */
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0x4000, 0x0000, 0x0000, 0x0000, /* 5e */
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0x1201, 0x0000, 0x0000, 0x0000, /* 66 */
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0x0000, 0x0000, 0x0000, 0x1000, /* 6e */
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0x0000, 0x0000, 0x0000, 0x0006, /* 76 */
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0x0000, 0x0000, 0x0000, 0x0000, /* 7e */
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};
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static const char *stac9766_record_mux[] = {"Mic", "CD", "Video", "AUX",
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"Line", "Stereo Mix", "Mono Mix", "Phone"};
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static const char *stac9766_mono_mux[] = {"Mix", "Mic"};
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static const char *stac9766_mic_mux[] = {"Mic1", "Mic2"};
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static const char *stac9766_SPDIF_mux[] = {"PCM", "ADC Record"};
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static const char *stac9766_popbypass_mux[] = {"Normal", "Bypass Mixer"};
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static const char *stac9766_record_all_mux[] = {"All analog",
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"Analog plus DAC"};
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static const char *stac9766_boost1[] = {"0dB", "10dB"};
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static const char *stac9766_boost2[] = {"0dB", "20dB"};
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static const char *stac9766_stereo_mic[] = {"Off", "On"};
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static SOC_ENUM_DOUBLE_DECL(stac9766_record_enum,
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AC97_REC_SEL, 8, 0, stac9766_record_mux);
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static SOC_ENUM_SINGLE_DECL(stac9766_mono_enum,
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AC97_GENERAL_PURPOSE, 9, stac9766_mono_mux);
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static SOC_ENUM_SINGLE_DECL(stac9766_mic_enum,
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AC97_GENERAL_PURPOSE, 8, stac9766_mic_mux);
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static SOC_ENUM_SINGLE_DECL(stac9766_SPDIF_enum,
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AC97_STAC_DA_CONTROL, 1, stac9766_SPDIF_mux);
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static SOC_ENUM_SINGLE_DECL(stac9766_popbypass_enum,
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AC97_GENERAL_PURPOSE, 15, stac9766_popbypass_mux);
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static SOC_ENUM_SINGLE_DECL(stac9766_record_all_enum,
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AC97_STAC_ANALOG_SPECIAL, 12,
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stac9766_record_all_mux);
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static SOC_ENUM_SINGLE_DECL(stac9766_boost1_enum,
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AC97_MIC, 6, stac9766_boost1); /* 0/10dB */
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static SOC_ENUM_SINGLE_DECL(stac9766_boost2_enum,
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AC97_STAC_ANALOG_SPECIAL, 2, stac9766_boost2); /* 0/20dB */
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static SOC_ENUM_SINGLE_DECL(stac9766_stereo_mic_enum,
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AC97_STAC_STEREO_MIC, 2, stac9766_stereo_mic);
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static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(master_tlv, -4650, 150, 0);
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static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(record_tlv, 0, 150, 0);
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static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(beep_tlv, -4500, 300, 0);
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static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(mix_tlv, -3450, 150, 0);
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static const struct snd_kcontrol_new stac9766_snd_ac97_controls[] = {
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SOC_DOUBLE_TLV("Speaker Volume", AC97_MASTER, 8, 0, 31, 1, master_tlv),
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SOC_SINGLE("Speaker Switch", AC97_MASTER, 15, 1, 1),
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SOC_DOUBLE_TLV("Headphone Volume", AC97_HEADPHONE, 8, 0, 31, 1,
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master_tlv),
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SOC_SINGLE("Headphone Switch", AC97_HEADPHONE, 15, 1, 1),
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SOC_SINGLE_TLV("Mono Out Volume", AC97_MASTER_MONO, 0, 31, 1,
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master_tlv),
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SOC_SINGLE("Mono Out Switch", AC97_MASTER_MONO, 15, 1, 1),
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SOC_DOUBLE_TLV("Record Volume", AC97_REC_GAIN, 8, 0, 15, 0, record_tlv),
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SOC_SINGLE("Record Switch", AC97_REC_GAIN, 15, 1, 1),
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SOC_SINGLE_TLV("Beep Volume", AC97_PC_BEEP, 1, 15, 1, beep_tlv),
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SOC_SINGLE("Beep Switch", AC97_PC_BEEP, 15, 1, 1),
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SOC_SINGLE("Beep Frequency", AC97_PC_BEEP, 5, 127, 1),
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SOC_SINGLE_TLV("Phone Volume", AC97_PHONE, 0, 31, 1, mix_tlv),
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SOC_SINGLE("Phone Switch", AC97_PHONE, 15, 1, 1),
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SOC_ENUM("Mic Boost1", stac9766_boost1_enum),
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SOC_ENUM("Mic Boost2", stac9766_boost2_enum),
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SOC_SINGLE_TLV("Mic Volume", AC97_MIC, 0, 31, 1, mix_tlv),
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SOC_SINGLE("Mic Switch", AC97_MIC, 15, 1, 1),
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SOC_ENUM("Stereo Mic", stac9766_stereo_mic_enum),
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SOC_DOUBLE_TLV("Line Volume", AC97_LINE, 8, 0, 31, 1, mix_tlv),
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SOC_SINGLE("Line Switch", AC97_LINE, 15, 1, 1),
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SOC_DOUBLE_TLV("CD Volume", AC97_CD, 8, 0, 31, 1, mix_tlv),
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SOC_SINGLE("CD Switch", AC97_CD, 15, 1, 1),
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SOC_DOUBLE_TLV("AUX Volume", AC97_AUX, 8, 0, 31, 1, mix_tlv),
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SOC_SINGLE("AUX Switch", AC97_AUX, 15, 1, 1),
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SOC_DOUBLE_TLV("Video Volume", AC97_VIDEO, 8, 0, 31, 1, mix_tlv),
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SOC_SINGLE("Video Switch", AC97_VIDEO, 15, 1, 1),
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SOC_DOUBLE_TLV("DAC Volume", AC97_PCM, 8, 0, 31, 1, mix_tlv),
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SOC_SINGLE("DAC Switch", AC97_PCM, 15, 1, 1),
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SOC_SINGLE("Loopback Test Switch", AC97_GENERAL_PURPOSE, 7, 1, 0),
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SOC_SINGLE("3D Volume", AC97_3D_CONTROL, 3, 2, 1),
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SOC_SINGLE("3D Switch", AC97_GENERAL_PURPOSE, 13, 1, 0),
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SOC_ENUM("SPDIF Mux", stac9766_SPDIF_enum),
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SOC_ENUM("Mic1/2 Mux", stac9766_mic_enum),
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SOC_ENUM("Record All Mux", stac9766_record_all_enum),
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SOC_ENUM("Record Mux", stac9766_record_enum),
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SOC_ENUM("Mono Mux", stac9766_mono_enum),
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SOC_ENUM("Pop Bypass Mux", stac9766_popbypass_enum),
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};
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static int stac9766_ac97_write(struct snd_soc_codec *codec, unsigned int reg,
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unsigned int val)
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{
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struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
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u16 *cache = codec->reg_cache;
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if (reg / 2 >= ARRAY_SIZE(stac9766_reg))
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return -EIO;
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soc_ac97_ops->write(ac97, reg, val);
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cache[reg / 2] = val;
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return 0;
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}
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static unsigned int stac9766_ac97_read(struct snd_soc_codec *codec,
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unsigned int reg)
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{
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struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
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u16 val = 0, *cache = codec->reg_cache;
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if (reg / 2 >= ARRAY_SIZE(stac9766_reg))
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return -EIO;
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if (reg == AC97_RESET || reg == AC97_GPIO_STATUS ||
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reg == AC97_INT_PAGING || reg == AC97_VENDOR_ID1 ||
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reg == AC97_VENDOR_ID2) {
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val = soc_ac97_ops->read(ac97, reg);
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return val;
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}
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return cache[reg / 2];
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}
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static int ac97_analog_prepare(struct snd_pcm_substream *substream,
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struct snd_soc_dai *dai)
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{
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struct snd_soc_codec *codec = dai->codec;
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struct snd_pcm_runtime *runtime = substream->runtime;
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unsigned short reg, vra;
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vra = stac9766_ac97_read(codec, AC97_EXTENDED_STATUS);
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vra |= 0x1; /* enable variable rate audio */
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vra &= ~0x4; /* disable SPDIF output */
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stac9766_ac97_write(codec, AC97_EXTENDED_STATUS, vra);
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if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
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reg = AC97_PCM_FRONT_DAC_RATE;
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else
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reg = AC97_PCM_LR_ADC_RATE;
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return stac9766_ac97_write(codec, reg, runtime->rate);
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}
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static int ac97_digital_prepare(struct snd_pcm_substream *substream,
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struct snd_soc_dai *dai)
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{
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struct snd_soc_codec *codec = dai->codec;
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struct snd_pcm_runtime *runtime = substream->runtime;
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unsigned short reg, vra;
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stac9766_ac97_write(codec, AC97_SPDIF, 0x2002);
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vra = stac9766_ac97_read(codec, AC97_EXTENDED_STATUS);
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vra |= 0x5; /* Enable VRA and SPDIF out */
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stac9766_ac97_write(codec, AC97_EXTENDED_STATUS, vra);
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reg = AC97_PCM_FRONT_DAC_RATE;
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return stac9766_ac97_write(codec, reg, runtime->rate);
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}
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static int stac9766_set_bias_level(struct snd_soc_codec *codec,
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enum snd_soc_bias_level level)
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{
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switch (level) {
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case SND_SOC_BIAS_ON: /* full On */
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case SND_SOC_BIAS_PREPARE: /* partial On */
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case SND_SOC_BIAS_STANDBY: /* Off, with power */
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stac9766_ac97_write(codec, AC97_POWERDOWN, 0x0000);
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break;
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case SND_SOC_BIAS_OFF: /* Off, without power */
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/* disable everything including AC link */
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stac9766_ac97_write(codec, AC97_POWERDOWN, 0xffff);
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break;
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}
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return 0;
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}
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static int stac9766_codec_resume(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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return snd_ac97_reset(ac97, true, STAC9766_VENDOR_ID,
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STAC9766_VENDOR_ID_MASK);
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}
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static const struct snd_soc_dai_ops stac9766_dai_ops_analog = {
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.prepare = ac97_analog_prepare,
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};
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static const struct snd_soc_dai_ops stac9766_dai_ops_digital = {
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.prepare = ac97_digital_prepare,
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};
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static struct snd_soc_dai_driver stac9766_dai[] = {
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{
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.name = "stac9766-hifi-analog",
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/* stream cababilities */
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.playback = {
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.stream_name = "stac9766 analog",
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.channels_min = 1,
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.channels_max = 2,
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.rates = SNDRV_PCM_RATE_8000_48000,
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.formats = SND_SOC_STD_AC97_FMTS,
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},
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.capture = {
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.stream_name = "stac9766 analog",
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.channels_min = 1,
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.channels_max = 2,
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.rates = SNDRV_PCM_RATE_8000_48000,
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.formats = SND_SOC_STD_AC97_FMTS,
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},
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/* alsa ops */
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.ops = &stac9766_dai_ops_analog,
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},
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{
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.name = "stac9766-hifi-IEC958",
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/* stream cababilities */
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.playback = {
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.stream_name = "stac9766 IEC958",
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.channels_min = 1,
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.channels_max = 2,
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.rates = SNDRV_PCM_RATE_32000 | \
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SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
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.formats = SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE,
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},
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/* alsa ops */
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.ops = &stac9766_dai_ops_digital,
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}
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};
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static int stac9766_codec_probe(struct snd_soc_codec *codec)
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{
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struct snd_ac97 *ac97;
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ac97 = snd_soc_new_ac97_codec(codec, STAC9766_VENDOR_ID,
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STAC9766_VENDOR_ID_MASK);
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if (IS_ERR(ac97))
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return PTR_ERR(ac97);
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snd_soc_codec_set_drvdata(codec, ac97);
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return 0;
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}
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static int stac9766_codec_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_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_stac9766 = {
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.component_driver = {
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.controls = stac9766_snd_ac97_controls,
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.num_controls = ARRAY_SIZE(stac9766_snd_ac97_controls),
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},
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.write = stac9766_ac97_write,
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.read = stac9766_ac97_read,
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.set_bias_level = stac9766_set_bias_level,
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.suspend_bias_off = true,
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.probe = stac9766_codec_probe,
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.remove = stac9766_codec_remove,
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.resume = stac9766_codec_resume,
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.reg_cache_size = ARRAY_SIZE(stac9766_reg),
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.reg_word_size = sizeof(u16),
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.reg_cache_step = 2,
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.reg_cache_default = stac9766_reg,
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};
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static int stac9766_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_stac9766, stac9766_dai, ARRAY_SIZE(stac9766_dai));
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}
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static int stac9766_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 stac9766_codec_driver = {
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.driver = {
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.name = "stac9766-codec",
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},
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.probe = stac9766_probe,
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.remove = stac9766_remove,
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};
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module_platform_driver(stac9766_codec_driver);
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MODULE_DESCRIPTION("ASoC stac9766 driver");
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MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>");
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MODULE_LICENSE("GPL");
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