422 lines
16 KiB
C
422 lines
16 KiB
C
/* SPDX-License-Identifier: GPL-2.0+
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*
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* Copyright (c) by Jaroslav Kysela <perex@perex.cz>
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* Universal interface for Audio Codec '97
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*
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* For more details look to AC '97 component specification revision 2.1
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* by Intel Corporation (http://developer.intel.com).
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*/
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#ifndef __SOUND_AC97_CODEC_H
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#define __SOUND_AC97_CODEC_H
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#include <linux/bitops.h>
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#include <linux/device.h>
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#include <linux/workqueue.h>
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#include <sound/ac97/regs.h>
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#include <sound/pcm.h>
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#include <sound/control.h>
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#include <sound/info.h>
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/* maximum number of devices on the AC97 bus */
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#define AC97_BUS_MAX_DEVICES 4
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/* specific - SigmaTel */
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#define AC97_SIGMATEL_OUTSEL 0x64 /* Output Select, STAC9758 */
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#define AC97_SIGMATEL_INSEL 0x66 /* Input Select, STAC9758 */
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#define AC97_SIGMATEL_IOMISC 0x68 /* STAC9758 */
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#define AC97_SIGMATEL_ANALOG 0x6c /* Analog Special */
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#define AC97_SIGMATEL_DAC2INVERT 0x6e
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#define AC97_SIGMATEL_BIAS1 0x70
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#define AC97_SIGMATEL_BIAS2 0x72
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#define AC97_SIGMATEL_VARIOUS 0x72 /* STAC9758 */
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#define AC97_SIGMATEL_MULTICHN 0x74 /* Multi-Channel programming */
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#define AC97_SIGMATEL_CIC1 0x76
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#define AC97_SIGMATEL_CIC2 0x78
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/* specific - Analog Devices */
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#define AC97_AD_TEST 0x5a /* test register */
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#define AC97_AD_TEST2 0x5c /* undocumented test register 2 */
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#define AC97_AD_HPFD_SHIFT 12 /* High Pass Filter Disable */
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#define AC97_AD_CODEC_CFG 0x70 /* codec configuration */
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#define AC97_AD_JACK_SPDIF 0x72 /* Jack Sense & S/PDIF */
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#define AC97_AD_SERIAL_CFG 0x74 /* Serial Configuration */
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#define AC97_AD_MISC 0x76 /* Misc Control Bits */
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#define AC97_AD_VREFD_SHIFT 2 /* V_REFOUT Disable (AD1888) */
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/* specific - Cirrus Logic */
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#define AC97_CSR_ACMODE 0x5e /* AC Mode Register */
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#define AC97_CSR_MISC_CRYSTAL 0x60 /* Misc Crystal Control */
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#define AC97_CSR_SPDIF 0x68 /* S/PDIF Register */
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#define AC97_CSR_SERIAL 0x6a /* Serial Port Control */
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#define AC97_CSR_SPECF_ADDR 0x6c /* Special Feature Address */
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#define AC97_CSR_SPECF_DATA 0x6e /* Special Feature Data */
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#define AC97_CSR_BDI_STATUS 0x7a /* BDI Status */
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/* specific - Conexant */
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#define AC97_CXR_AUDIO_MISC 0x5c
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#define AC97_CXR_SPDIFEN (1<<3)
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#define AC97_CXR_COPYRGT (1<<2)
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#define AC97_CXR_SPDIF_MASK (3<<0)
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#define AC97_CXR_SPDIF_PCM 0x0
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#define AC97_CXR_SPDIF_AC3 0x2
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/* specific - ALC */
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#define AC97_ALC650_SPDIF_INPUT_STATUS1 0x60
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/* S/PDIF input status 1 bit defines */
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#define AC97_ALC650_PRO 0x0001 /* Professional status */
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#define AC97_ALC650_NAUDIO 0x0002 /* Non audio stream */
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#define AC97_ALC650_COPY 0x0004 /* Copyright status */
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#define AC97_ALC650_PRE 0x0038 /* Preemphasis status */
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#define AC97_ALC650_PRE_SHIFT 3
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#define AC97_ALC650_MODE 0x00C0 /* Preemphasis status */
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#define AC97_ALC650_MODE_SHIFT 6
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#define AC97_ALC650_CC_MASK 0x7f00 /* Category Code mask */
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#define AC97_ALC650_CC_SHIFT 8
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#define AC97_ALC650_L 0x8000 /* Generation Level status */
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#define AC97_ALC650_SPDIF_INPUT_STATUS2 0x62
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/* S/PDIF input status 2 bit defines */
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#define AC97_ALC650_SOUCE_MASK 0x000f /* Source number */
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#define AC97_ALC650_CHANNEL_MASK 0x00f0 /* Channel number */
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#define AC97_ALC650_CHANNEL_SHIFT 4
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#define AC97_ALC650_SPSR_MASK 0x0f00 /* S/PDIF Sample Rate bits */
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#define AC97_ALC650_SPSR_SHIFT 8
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#define AC97_ALC650_SPSR_44K 0x0000 /* Use 44.1kHz Sample rate */
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#define AC97_ALC650_SPSR_48K 0x0200 /* Use 48kHz Sample rate */
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#define AC97_ALC650_SPSR_32K 0x0300 /* Use 32kHz Sample rate */
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#define AC97_ALC650_CLOCK_ACCURACY 0x3000 /* Clock accuracy */
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#define AC97_ALC650_CLOCK_SHIFT 12
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#define AC97_ALC650_CLOCK_LOCK 0x4000 /* Clock locked status */
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#define AC97_ALC650_V 0x8000 /* Validity status */
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#define AC97_ALC650_SURR_DAC_VOL 0x64
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#define AC97_ALC650_LFE_DAC_VOL 0x66
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#define AC97_ALC650_UNKNOWN1 0x68
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#define AC97_ALC650_MULTICH 0x6a
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#define AC97_ALC650_UNKNOWN2 0x6c
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#define AC97_ALC650_REVISION 0x6e
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#define AC97_ALC650_UNKNOWN3 0x70
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#define AC97_ALC650_UNKNOWN4 0x72
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#define AC97_ALC650_MISC 0x74
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#define AC97_ALC650_GPIO_SETUP 0x76
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#define AC97_ALC650_GPIO_STATUS 0x78
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#define AC97_ALC650_CLOCK 0x7a
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/* specific - Yamaha YMF7x3 */
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#define AC97_YMF7X3_DIT_CTRL 0x66 /* DIT Control (YMF743) / 2 (YMF753) */
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#define AC97_YMF7X3_3D_MODE_SEL 0x68 /* 3D Mode Select */
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/* specific - C-Media */
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#define AC97_CM9738_VENDOR_CTRL 0x5a
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#define AC97_CM9739_MULTI_CHAN 0x64
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#define AC97_CM9739_SPDIF_IN_STATUS 0x68 /* 32bit */
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#define AC97_CM9739_SPDIF_CTRL 0x6c
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/* specific - wolfson */
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#define AC97_WM97XX_FMIXER_VOL 0x72
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#define AC97_WM9704_RMIXER_VOL 0x74
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#define AC97_WM9704_TEST 0x5a
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#define AC97_WM9704_RPCM_VOL 0x70
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#define AC97_WM9711_OUT3VOL 0x16
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/* ac97->scaps */
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#define AC97_SCAP_AUDIO (1<<0) /* audio codec 97 */
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#define AC97_SCAP_MODEM (1<<1) /* modem codec 97 */
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#define AC97_SCAP_SURROUND_DAC (1<<2) /* surround L&R DACs are present */
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#define AC97_SCAP_CENTER_LFE_DAC (1<<3) /* center and LFE DACs are present */
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#define AC97_SCAP_SKIP_AUDIO (1<<4) /* skip audio part of codec */
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#define AC97_SCAP_SKIP_MODEM (1<<5) /* skip modem part of codec */
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#define AC97_SCAP_INDEP_SDIN (1<<6) /* independent SDIN */
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#define AC97_SCAP_INV_EAPD (1<<7) /* inverted EAPD */
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#define AC97_SCAP_DETECT_BY_VENDOR (1<<8) /* use vendor registers for read tests */
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#define AC97_SCAP_NO_SPDIF (1<<9) /* don't build SPDIF controls */
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#define AC97_SCAP_EAPD_LED (1<<10) /* EAPD as mute LED */
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#define AC97_SCAP_POWER_SAVE (1<<11) /* capable for aggressive power-saving */
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/* ac97->flags */
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#define AC97_HAS_PC_BEEP (1<<0) /* force PC Speaker usage */
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#define AC97_AD_MULTI (1<<1) /* Analog Devices - multi codecs */
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#define AC97_CS_SPDIF (1<<2) /* Cirrus Logic uses funky SPDIF */
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#define AC97_CX_SPDIF (1<<3) /* Conexant's spdif interface */
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#define AC97_STEREO_MUTES (1<<4) /* has stereo mute bits */
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#define AC97_DOUBLE_RATE (1<<5) /* supports double rate playback */
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#define AC97_HAS_NO_MASTER_VOL (1<<6) /* no Master volume */
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#define AC97_HAS_NO_PCM_VOL (1<<7) /* no PCM volume */
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#define AC97_DEFAULT_POWER_OFF (1<<8) /* no RESET write */
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#define AC97_MODEM_PATCH (1<<9) /* modem patch */
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#define AC97_HAS_NO_REC_GAIN (1<<10) /* no Record gain */
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#define AC97_HAS_NO_PHONE (1<<11) /* no PHONE volume */
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#define AC97_HAS_NO_PC_BEEP (1<<12) /* no PC Beep volume */
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#define AC97_HAS_NO_VIDEO (1<<13) /* no Video volume */
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#define AC97_HAS_NO_CD (1<<14) /* no CD volume */
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#define AC97_HAS_NO_MIC (1<<15) /* no MIC volume */
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#define AC97_HAS_NO_TONE (1<<16) /* no Tone volume */
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#define AC97_HAS_NO_STD_PCM (1<<17) /* no standard AC97 PCM volume and mute */
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#define AC97_HAS_NO_AUX (1<<18) /* no standard AC97 AUX volume and mute */
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#define AC97_HAS_8CH (1<<19) /* supports 8-channel output */
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/* rates indexes */
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#define AC97_RATES_FRONT_DAC 0
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#define AC97_RATES_SURR_DAC 1
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#define AC97_RATES_LFE_DAC 2
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#define AC97_RATES_ADC 3
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#define AC97_RATES_MIC_ADC 4
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#define AC97_RATES_SPDIF 5
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#define AC97_NUM_GPIOS 16
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/*
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*
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*/
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struct snd_ac97;
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struct snd_ac97_gpio_priv;
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struct snd_pcm_chmap;
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struct snd_ac97_build_ops {
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int (*build_3d) (struct snd_ac97 *ac97);
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int (*build_specific) (struct snd_ac97 *ac97);
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int (*build_spdif) (struct snd_ac97 *ac97);
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int (*build_post_spdif) (struct snd_ac97 *ac97);
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#ifdef CONFIG_PM
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void (*suspend) (struct snd_ac97 *ac97);
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void (*resume) (struct snd_ac97 *ac97);
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#endif
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void (*update_jacks) (struct snd_ac97 *ac97); /* for jack-sharing */
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};
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struct snd_ac97_bus_ops {
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void (*reset) (struct snd_ac97 *ac97);
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void (*warm_reset)(struct snd_ac97 *ac97);
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void (*write) (struct snd_ac97 *ac97, unsigned short reg, unsigned short val);
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unsigned short (*read) (struct snd_ac97 *ac97, unsigned short reg);
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void (*wait) (struct snd_ac97 *ac97);
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void (*init) (struct snd_ac97 *ac97);
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};
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struct snd_ac97_bus {
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/* -- lowlevel (hardware) driver specific -- */
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const struct snd_ac97_bus_ops *ops;
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void *private_data;
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void (*private_free) (struct snd_ac97_bus *bus);
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/* --- */
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struct snd_card *card;
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unsigned short num; /* bus number */
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unsigned short no_vra: 1, /* bridge doesn't support VRA */
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dra: 1, /* bridge supports double rate */
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isdin: 1;/* independent SDIN */
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unsigned int clock; /* AC'97 base clock (usually 48000Hz) */
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spinlock_t bus_lock; /* used mainly for slot allocation */
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unsigned short used_slots[2][4]; /* actually used PCM slots */
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unsigned short pcms_count; /* count of PCMs */
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struct ac97_pcm *pcms;
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struct snd_ac97 *codec[4];
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struct snd_info_entry *proc;
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};
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/* static resolution table */
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struct snd_ac97_res_table {
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unsigned short reg; /* register */
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unsigned short bits; /* resolution bitmask */
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};
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struct snd_ac97_template {
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void *private_data;
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void (*private_free) (struct snd_ac97 *ac97);
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struct pci_dev *pci; /* assigned PCI device - used for quirks */
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unsigned short num; /* number of codec: 0 = primary, 1 = secondary */
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unsigned short addr; /* physical address of codec [0-3] */
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unsigned int scaps; /* driver capabilities */
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const struct snd_ac97_res_table *res_table; /* static resolution */
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};
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struct snd_ac97 {
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/* -- lowlevel (hardware) driver specific -- */
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const struct snd_ac97_build_ops *build_ops;
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void *private_data;
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void (*private_free) (struct snd_ac97 *ac97);
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/* --- */
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struct snd_ac97_bus *bus;
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struct pci_dev *pci; /* assigned PCI device - used for quirks */
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struct snd_info_entry *proc;
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struct snd_info_entry *proc_regs;
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unsigned short subsystem_vendor;
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unsigned short subsystem_device;
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struct mutex reg_mutex;
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struct mutex page_mutex; /* mutex for AD18xx multi-codecs and paging (2.3) */
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unsigned short num; /* number of codec: 0 = primary, 1 = secondary */
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unsigned short addr; /* physical address of codec [0-3] */
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unsigned int id; /* identification of codec */
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unsigned short caps; /* capabilities (register 0) */
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unsigned short ext_id; /* extended feature identification (register 28) */
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unsigned short ext_mid; /* extended modem ID (register 3C) */
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const struct snd_ac97_res_table *res_table; /* static resolution */
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unsigned int scaps; /* driver capabilities */
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unsigned int flags; /* specific code */
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unsigned int rates[6]; /* see AC97_RATES_* defines */
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unsigned int spdif_status;
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unsigned short regs[0x80]; /* register cache */
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DECLARE_BITMAP(reg_accessed, 0x80); /* bit flags */
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union { /* vendor specific code */
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struct {
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unsigned short unchained[3]; // 0 = C34, 1 = C79, 2 = C69
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unsigned short chained[3]; // 0 = C34, 1 = C79, 2 = C69
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unsigned short id[3]; // codec IDs (lower 16-bit word)
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unsigned short pcmreg[3]; // PCM registers
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unsigned short codec_cfg[3]; // CODEC_CFG bits
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unsigned char swap_mic_linein; // AD1986/AD1986A only
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unsigned char lo_as_master; /* LO as master */
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} ad18xx;
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unsigned int dev_flags; /* device specific */
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} spec;
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/* jack-sharing info */
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unsigned char indep_surround;
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unsigned char channel_mode;
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#ifdef CONFIG_SND_AC97_POWER_SAVE
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unsigned int power_up; /* power states */
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struct delayed_work power_work;
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#endif
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struct device dev;
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struct snd_ac97_gpio_priv *gpio_priv;
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struct snd_pcm_chmap *chmaps[2]; /* channel-maps (optional) */
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};
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#define to_ac97_t(d) container_of(d, struct snd_ac97, dev)
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/* conditions */
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static inline int ac97_is_audio(struct snd_ac97 * ac97)
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{
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return (ac97->scaps & AC97_SCAP_AUDIO);
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}
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static inline int ac97_is_modem(struct snd_ac97 * ac97)
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{
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return (ac97->scaps & AC97_SCAP_MODEM);
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}
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static inline int ac97_is_rev22(struct snd_ac97 * ac97)
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{
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return (ac97->ext_id & AC97_EI_REV_MASK) >= AC97_EI_REV_22;
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}
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static inline int ac97_can_amap(struct snd_ac97 * ac97)
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{
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return (ac97->ext_id & AC97_EI_AMAP) != 0;
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}
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static inline int ac97_can_spdif(struct snd_ac97 * ac97)
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{
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return (ac97->ext_id & AC97_EI_SPDIF) != 0;
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}
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/* functions */
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/* create new AC97 bus */
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int snd_ac97_bus(struct snd_card *card, int num,
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const struct snd_ac97_bus_ops *ops,
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void *private_data, struct snd_ac97_bus **rbus);
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/* create mixer controls */
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int snd_ac97_mixer(struct snd_ac97_bus *bus, struct snd_ac97_template *template,
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struct snd_ac97 **rac97);
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const char *snd_ac97_get_short_name(struct snd_ac97 *ac97);
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void snd_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short value);
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unsigned short snd_ac97_read(struct snd_ac97 *ac97, unsigned short reg);
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void snd_ac97_write_cache(struct snd_ac97 *ac97, unsigned short reg, unsigned short value);
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int snd_ac97_update(struct snd_ac97 *ac97, unsigned short reg, unsigned short value);
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int snd_ac97_update_bits(struct snd_ac97 *ac97, unsigned short reg, unsigned short mask, unsigned short value);
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#ifdef CONFIG_SND_AC97_POWER_SAVE
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int snd_ac97_update_power(struct snd_ac97 *ac97, int reg, int powerup);
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#else
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static inline int snd_ac97_update_power(struct snd_ac97 *ac97, int reg,
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int powerup)
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{
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return 0;
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}
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#endif
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#ifdef CONFIG_PM
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void snd_ac97_suspend(struct snd_ac97 *ac97);
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void snd_ac97_resume(struct snd_ac97 *ac97);
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#else
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static inline void snd_ac97_suspend(struct snd_ac97 *ac97) {}
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static inline void snd_ac97_resume(struct snd_ac97 *ac97) {}
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#endif
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int snd_ac97_reset(struct snd_ac97 *ac97, bool try_warm, unsigned int id,
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unsigned int id_mask);
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/* quirk types */
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enum {
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AC97_TUNE_DEFAULT = -1, /* use default from quirk list (not valid in list) */
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AC97_TUNE_NONE = 0, /* nothing extra to do */
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AC97_TUNE_HP_ONLY, /* headphone (true line-out) control as master only */
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AC97_TUNE_SWAP_HP, /* swap headphone and master controls */
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AC97_TUNE_SWAP_SURROUND, /* swap master and surround controls */
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AC97_TUNE_AD_SHARING, /* for AD1985, turn on OMS bit and use headphone */
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AC97_TUNE_ALC_JACK, /* for Realtek, enable JACK detection */
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AC97_TUNE_INV_EAPD, /* inverted EAPD implementation */
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AC97_TUNE_MUTE_LED, /* EAPD bit works as mute LED */
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AC97_TUNE_HP_MUTE_LED, /* EAPD bit works as mute LED, use headphone control as master */
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};
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struct ac97_quirk {
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unsigned short subvendor; /* PCI subsystem vendor id */
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unsigned short subdevice; /* PCI subsystem device id */
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unsigned short mask; /* device id bit mask, 0 = accept all */
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unsigned int codec_id; /* codec id (if any), 0 = accept all */
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const char *name; /* name shown as info */
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int type; /* quirk type above */
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};
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int snd_ac97_tune_hardware(struct snd_ac97 *ac97,
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const struct ac97_quirk *quirk,
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const char *override);
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int snd_ac97_set_rate(struct snd_ac97 *ac97, int reg, unsigned int rate);
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/*
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* PCM allocation
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*/
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enum ac97_pcm_cfg {
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AC97_PCM_CFG_FRONT = 2,
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AC97_PCM_CFG_REAR = 10, /* alias surround */
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AC97_PCM_CFG_LFE = 11, /* center + lfe */
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AC97_PCM_CFG_40 = 4, /* front + rear */
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AC97_PCM_CFG_51 = 6, /* front + rear + center/lfe */
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AC97_PCM_CFG_SPDIF = 20
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};
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struct ac97_pcm {
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struct snd_ac97_bus *bus;
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unsigned int stream: 1, /* stream type: 1 = capture */
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exclusive: 1, /* exclusive mode, don't override with other pcms */
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copy_flag: 1, /* lowlevel driver must fill all entries */
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spdif: 1; /* spdif pcm */
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unsigned short aslots; /* active slots */
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unsigned short cur_dbl; /* current double-rate state */
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unsigned int rates; /* available rates */
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struct {
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unsigned short slots; /* driver input: requested AC97 slot numbers */
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unsigned short rslots[4]; /* allocated slots per codecs */
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unsigned char rate_table[4];
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struct snd_ac97 *codec[4]; /* allocated codecs */
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} r[2]; /* 0 = standard rates, 1 = double rates */
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unsigned long private_value; /* used by the hardware driver */
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};
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int snd_ac97_pcm_assign(struct snd_ac97_bus *ac97,
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unsigned short pcms_count,
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const struct ac97_pcm *pcms);
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int snd_ac97_pcm_open(struct ac97_pcm *pcm, unsigned int rate,
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enum ac97_pcm_cfg cfg, unsigned short slots);
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int snd_ac97_pcm_close(struct ac97_pcm *pcm);
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int snd_ac97_pcm_double_rate_rules(struct snd_pcm_runtime *runtime);
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/* ad hoc AC97 device driver access */
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extern const struct bus_type ac97_bus_type;
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/* AC97 platform_data adding function */
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static inline void snd_ac97_dev_add_pdata(struct snd_ac97 *ac97, void *data)
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{
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ac97->dev.platform_data = data;
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}
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#endif /* __SOUND_AC97_CODEC_H */
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