/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2006 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ /* * CAUTION: This header file has not gone through a formal review process. * Thus its commitment level is very low and may change or be removed * at any time. */ #ifndef _SYS_AC97_H #define _SYS_AC97_H #pragma ident "%Z%%M% %I% %E% SMI" #ifdef __cplusplus extern "C" { #endif #ifdef _KERNEL /* * This header file describes the AC-97 V2.1 Codec register set. See the * spec for a detailed description of each register. */ struct ac97_v21 { uint16_t ac97_reset; /* 00h */ uint16_t ac97_master_volume; /* 02h */ uint16_t ac97_headphone_volume; /* 04h, optional */ uint16_t ac97_master_mono_volume; /* 06h, optional */ uint16_t ac97_master_tone; /* 08h, optional */ uint16_t ac97_pc_beep_volume; /* 0ah, optional */ uint16_t ac97_phone_volume; /* 0ch, optional */ uint16_t ac97_mic_volume; /* 0eh */ uint16_t ac97_line_in_volume; /* 10h */ uint16_t ac97_cd_volume; /* 12h */ uint16_t ac97_video_volume; /* 14h, optional */ uint16_t ac97_aux_volume; /* 16h, optional */ uint16_t ac97_PCM_out_volume; /* 18h */ uint16_t ac97_record_select; /* 1ah */ uint16_t ac97_record_gain; /* 1ch */ uint16_t ac97_record_gain_mic; /* 1eh, optional */ uint16_t ac97_general_purpose; /* 20h, optional */ uint16_t ac97_threeD_control; /* 22h, optional */ uint16_t ac97_reserved_1; /* 24h */ uint16_t ac97_pwrdwn_ctrl_stat; /* 26h */ /* extended audio registers */ uint16_t ac97_ext_audio_id; /* 28h, optional */ uint16_t ac97_ext_audio_stat_ctrl; /* 2ah, optional */ uint16_t ac97_ext_front_DAC_rate; /* 2ch, optional */ uint16_t ac97_ext_surround_DAC_rate; /* 2eh, optional */ uint16_t ac97_ext_LFE_DAC_rate; /* 30h, optional */ uint16_t ac97_ext_LR_ADC_rate; /* 32h, optional */ uint16_t ac97_ext_mic_ADC_rate; /* 34h, optional */ uint16_t ac97_ext_C_LFE_volume; /* 36h, optional */ uint16_t ac97_ext_LR_surround_volume; /* 38h, optional */ uint16_t ac97_ext_reserved_1; /* 3ah, optional */ /* extended modem registers */ uint16_t ac97_ext_modem_id; /* 3ch, optional */ uint16_t ac97_ext_modem_stat_ctrl; /* 3eh, optional */ uint16_t ac97_ext_line1_DAC_ADC_rate; /* 40h, optional */ uint16_t ac97_ext_line2_DAC_ADC_rate; /* 42h, optional */ uint16_t ac97_ext_hndst_DAC_ADC_rate; /* 44h, optional */ uint16_t ac97_ext_line1_DAC_ADC_level; /* 46h, optional */ uint16_t ac97_ext_line2_DAC_ADC_level; /* 48h, optional */ uint16_t ac97_ext_hndst_DAC_ADC_level; /* 4ah, optional */ uint16_t ac97_ext_GPIO_pin_config; /* 4ch, optional */ uint16_t ac97_ext_GPIO_pin_polarity; /* 4eh, optional */ uint16_t ac97_ext_GPIO_pin_sticky; /* 50h, optional */ uint16_t ac97_ext_GPIO_pin_wakeup; /* 52h, optional */ uint16_t ac97_ext_GPIO_pin_status; /* 54h, optional */ uint16_t ac97_ext_modem_AFE_stat_ctrl; /* 56h, optional */ uint16_t ac97_ext_reserved_2; /* 58h, optional */ /* reserved for vendor usage */ uint16_t ac97_vendor_01; /* 5ah, optional */ uint16_t ac97_vendor_02; /* 5ch, optional */ uint16_t ac97_vendor_03; /* 5eh, optional */ uint16_t ac97_vendor_04; /* 60h, optional */ uint16_t ac97_vendor_05; /* 62h, optional */ uint16_t ac97_vendor_06; /* 64h, optional */ uint16_t ac97_vendor_07; /* 66h, optional */ uint16_t ac97_vendor_08; /* 68h, optional */ uint16_t ac97_vendor_09; /* 6ah, optional */ uint16_t ac97_vendor_10; /* 6ch, optional */ uint16_t ac97_vendor_11; /* 6eh, optional */ uint16_t ac97_vendor_12; /* 70h, optional */ uint16_t ac97_vendor_13; /* 72h, optional */ uint16_t ac97_vendor_14; /* 74h, optional */ uint16_t ac97_vendor_15; /* 76h, optional */ uint16_t ac97_vendor_16; /* 78h, optional */ uint16_t ac97_vendor_17; /* 7ah, optional */ uint16_t ac97_vendor_id1; /* 7ch */ uint16_t ac97_vendor_id2; /* 7eh */ }; typedef struct ac97_v21 ac97_v21_t; /* * Defines for the V2.1 registers. */ /* Reset Register Index 00h */ #define AC97_RESET_REGISTER 0x00 #define RR_DEDICATED_MIC 0x0001 #define RR_RESERVED 0x0002 #define RR_BASS_TREBLE 0x0004 #define RR_PSEUDO_STEREO 0x0008 #define RR_HEADPHONE_SUPPORT 0x0010 #define RR_LOUDNESS_SUPPORT 0x0020 #define RR_18_BIT_DAC 0x0040 #define RR_20_BIT_DAC 0x0080 #define RR_18_BIT_ADC 0x0100 #define RR_20_BIT_ADC 0x0200 #define RR_3D_STEREO_ENHANCE_MASK 0x7c00 /* Master Volume Register Index 02h */ #define AC97_MASTER_VOLUME_REGISTER 0x02 #define MVR_RIGHT_MASK 0x001f #define MVR_RIGHT_0dB_ATTEN 0x0000 #define MVR_RIGHT_OPTIONAL_MASK 0x003f #define MVR_LEFT_MASK 0x1f00 #define MVR_LEFT_0dB_ATTEN 0x0000 #define MVR_LEFT_OPTIONAL_MASK 0x3f00 #define MVR_MUTE 0x8000 /* Headphone Volume Register Index 04h - Optional */ #define AC97_HEADPHONE_VOLUME_REGISTER 0x04 #define HPVR_RIGHT_MASK 0x001f #define HPVR_RIGHT_0dB_ATTEN 0x0000 #define HPVR_RIGHT_OPTIONAL_MASK 0x003f #define HPVR_LEFT_MASK 0x1f00 #define HPVR_LEFT_0dB_ATTEN 0x0000 #define HPVR_LEFT_OPTIONAL_MASK 0x3f00 #define HPVR_MUTE 0x8000 /* Mono Master Volume Register Index 06h - Optional */ #define AC97_MONO_MASTER_VOLUME_REGSITER 0x06 #define MMVR_MASK 0x001f #define MMVR_0dB_ATTEN 0x0000 #define MMVR_OPTIONAL_MASK 0x003f #define MMVR_MUTE 0x8000 /* Master Tone Control Register Index 08h - Optional */ #define AC97_MASTER_TONE_CONTROL_REGISTER 0x08 #define MTCR_TREBLE_MASK 0x000e #define MTCR_TREBLE_OPTIONAL_MASK 0x000f #define MTCR_TREBLE_BYPASS 0x000f #define MTCR_BASS_MASK 0x0e00 #define MTCR_BASS_OPTIONAL_MASK 0x0f00 #define MTCR_BASS_BYPASS 0x0f00 /* PC Beep Register Index 0ah - Optional */ #define AC97_PC_BEEP_REGISTER 0x0a #define PCBR_VOLUME_MASK 0x001e #define PCBR_0dB_ATTEN 0x0000 #define PCBR_MUTE 0x8000 /* Phone Volume Register Index 0ch - Optional */ #define AC97_PHONE_VOLUME_REGISTER 0x0c #define PVR_GAIN_MASK 0x001f #define PVR_0dB_GAIN 0x0010 #define PVR_MAX_ATTEN 0x001f #define PVR_MUTE 0x8000 /* Mic Volume Register Index 0eh */ #define AC97_MIC_VOLUME_REGISTER 0x0e #define MICVR_GAIN_MASK 0x001f #define MICVR_0dB_GAIN 0x0008 #define MICVR_MAX_ATTEN 0x001f #define MICVR_20dB_BOOST 0x0040 #define MICVR_20dB_NOBOOST 0x0000 #define MICVR_MUTE 0x8000 /* Line In Volume Register Index 10h */ #define AC97_LINE_IN_VOLUME_REGISTER 0x10 #define LIVR_RIGHT_GAIN_MASK 0x001f #define LIVR_RIGHT_0dB_GAIN 0x0010 #define LIVR_RIGHT_MAX_ATTEN 0x001f #define LIVR_LEFT_GAIN_MASK 0x1f00 #define LIVR_LEFT_0dB_GAIN 0x1000 #define LIVR_LEFT_MAX_ATTEN 0x1f00 #define LIVR_MUTE 0x8000 /* CD Volume Register Index 12h */ #define AC97_CD_VOLUME_REGISTER 0x12 #define CDVR_RIGHT_GAIN_MASK 0x001f #define CDVR_RIGHT_0dB_GAIN 0x0010 #define CDVR_RIGHT_MAX_ATTEN 0x001f #define CDVR_LEFT_GAIN_MASK 0x1f00 #define CDVR_LEFT_0dB_GAIN 0x1000 #define CDVR_LEFT_MAX_ATTEN 0x1f00 #define CDVR_MUTE 0x8000 /* Video Volume Register Index 14h - Optional */ #define AC97_VIDEO_VOLUME_REGISTER 0x14 #define VIDVR_RIGHT_GAIN_MASK 0x001f #define VIDVR_RIGHT_0dB_GAIN 0x0010 #define VIDVR_RIGHT_MAX_ATTEN 0x001f #define VIDVR_LEFT_GAIN_MASK 0x1f00 #define VIDVR_LEFT_0dB_GAIN 0x1000 #define VIDVR_LEFT_MAX_ATTEN 0x1f00 #define VIDVR_MUTE 0x8000 /* Aux Volume Register Index 16h - Optional */ #define AC97_AUX_VOLUME_REGISTER 0x16 #define AUXVR_RIGHT_GAIN_MASK 0x001f #define AUXVR_RIGHT_0dB_GAIN 0x0010 #define AUXVR_RIGHT_MAX_ATTEN 0x001f #define AUXVR_LEFT_GAIN_MASK 0x1f00 #define AUXVR_LEFT_0dB_GAIN 0x1000 #define AUXVR_LEFT_MAX_ATTEN 0x1f00 #define AUXVR_MUTE 0x8000 /* PCM Out Input Volume Register Index 18h */ #define AC97_PCM_OUT_VOLUME_REGISTER 0x18 #define PCMOVR_RIGHT_GAIN_MASK 0x001f #define PCMOVR_RIGHT_0dB_GAIN 0x0010 #define PCMOVR_RIGHT_MAX_ATTEN 0x001f #define PCMOVR_LEFT_GAIN_MASK 0x1f00 #define PCMOVR_LEFT_0dB_GAIN 0x1000 #define PCMOVR_LEFT_MAX_ATTEN 0x1f00 #define PCMOVR_MUTE 0x8000 #define PCMOVR_GAIN_BITS 5 /* Record Select Control Register Index 1ah */ #define AC97_RECORD_SELECT_CTRL_REGISTER 0x1a #define RSCR_R_MIC 0x0000 #define RSCR_R_CD 0x0001 #define RSCR_R_VIDEO 0x0002 #define RSCR_R_AUX 0x0003 #define RSCR_R_LINE_IN 0x0004 #define RSCR_R_STEREO_MIX 0x0005 #define RSCR_R_MONO_MIX 0x0006 #define RSCR_R_PHONE 0x0007 #define RSCR_L_MIC 0x0000 #define RSCR_L_CD 0x0100 #define RSCR_L_VIDEO 0x0200 #define RSCR_L_AUX 0x0300 #define RSCR_L_LINE_IN 0x0400 #define RSCR_L_STEREO_MIX 0x0500 #define RSCR_L_MONO_MIX 0x0600 #define RSCR_L_PHONE 0x0700 /* Record Gain Register Index 1ch */ #define AC97_RECORD_GAIN_REGISTER 0x1c #define RGR_RIGHT_MASK 0x000f #define RGR_RIGHT_0db_GAIN 0x0000 #define RGR_RIGHT_MAX_GAIN 0x000f #define RGR_LEFT_MASK 0x0f00 #define RGR_LEFT_0db_GAIN 0x0000 #define RGR_LEFT_MAX_GAIN 0x0f00 #define RGR_MUTE 0x8000 /* Record Gain Mic Register Index 1eh - Optional */ #define AC97_RECORD_GAIN_MIC_REGISTER 0x1e #define RGMR_MASK 0x000f #define RGMR_MUTE 0x8000 #define RGMR_MASK 0x000f #define RGMR_0db_GAIN 0x0000 #define RGMR_MAX_GAIN 0x000f /* General Purpose Register Index 20h - Optional */ #define AC97_GENERAL_PURPOSE_REGISTER 0x20 #define GPR_LPBK 0x0080 #define GPR_MS_MIC1 0x0000 #define GPR_MS_MIC2 0x0100 #define GPR_MONO_MIX_IN 0x0000 #define GPR_MONO_MIC_IN 0x0200 #define GPR_BASS_BOOST 0x1000 #define GPR_3D_STEREO_ENHANCE 0x2000 #define GPR_ST 0x4000 #define GPR_POP_PRE_3D 0x0000 #define GPR_POP_POST_3D 0x8000 /* 3D Control Regsiter Index 22h - Optional */ #define AC97_THREE_D_CONTROL_REGISTER 0x22 #define TDCR_DEPTH_MASK 0x000f #define TDCR_CENTER_MASK 0x0f00 #define TDCR_NULL 0x0000 /* Powerdown Control Status Register Index 26h */ #define AC97_POWERDOWN_CTRL_STAT_REGISTER 0x26 #define PCSR_ADC 0x0001 #define PCSR_DAC 0x0002 #define PCSR_ANL 0x0004 #define PCSR_REF 0x0008 #define PCSR_POWERD_UP (PCSR_ADC|PCSR_DAC|\ PCSR_ANL|PCSR_REF) #define PCSR_PR0 0x0100 #define PCSR_PR1 0x0200 #define PCSR_PR2 0x0400 #define PCSR_PR3 0x0800 #define PCSR_PR4 0x1000 #define PCSR_PR5 0x2000 #define PCSR_PR6 0x4000 #define PCSR_EAPD 0x8000 /* Extended Audio Register Index 28h - Optional */ #define AC97_EXTENDED_AUDIO_REGISTER 0x28 #define EAR_VRA 0x0001 #define EAR_DRA 0x0002 #define EAR_VRM 0x0008 #define EAR_CDAC 0x0040 #define EAR_SDAC 0x0080 #define EAR_LDAC 0x0100 #define EAR_AMAP 0x0200 #define EAR_PRIMARY_CODEC 0x0000 #define EAR_SECONDARY_01_CODEC 0x4000 #define EAR_SECONDARY_10_CODEC 0x8000 #define EAR_SECONDARY_11_CODEC 0xc000 /* Extended Audio Status and Control Register Index 2ah - Optional */ #define AC97_EXTENDED_AUDIO_STAT_CTRL_REGISTER 0x2a #define EASCR_VRA 0x0001 #define EASCR_DRA 0x0002 #define EASCR_VRM 0x0008 #define EASCR_CDAC 0x0040 #define EASCR_SDAC 0x0080 #define EASCR_LDAC 0x0100 #define EASCR_MADC 0x0200 #define EASCR_PRI 0x0800 #define EASCR_PRJ 0x1000 #define EASCR_PRK 0x2000 #define EASCR_PRL 0x4000 /* Extended Front DAC Rate Register 2ch - Optional */ #define AC97_EXTENDED_FRONT_DAC_RATE_REGISTER 0x2c #define AC97_SAMPLE_RATE_48000 0xbb80 /* Extended Surround DAC Rate Register 2eh - Optional */ #define AC97_EXTENDED_SURROUND_DAC_RATE_REGISTER 0x2e /* Extended LFE DAC Rate Register 30h - Optional */ #define AC97_EXTENDED_LFE_DAC_RATE_REGISTER 0x30 /* Extended LR DAC Rate Register 32h - Optional */ #define AC97_EXTENDED_LR_DAC_RATE_REGISTER 0x32 /* Extended Mic ADC Rate Register 34h - Optional */ #define AC97_EXTENDED_MIC_ADC_RATE_REGISTER 0x34 /* Extended Center and LFE Volume Register 36h - Optional */ #define AC97_EXTENDED_C_LFE_VOLUME_REGISTER 0x36 #define EXLFEVR_CENTER_MASK 0x001f #define EXLFEVR_CENTER_OPTIONAL_MASK 0x003f #define EXLFEVR_CENTER_MTUE 0x0080 #define EXLFEVR_LFE_MASK 0x1f00 #define EXLFEVR_LFE_OPTIONAL_MASK 0x3f00 #define EXLFEVR_LFE_MUTE 0x8000 /* Extended Left and Right Surround Volume Register 38h - Optional */ #define AC97_EXTENDED_LRS_VOLUME_REGISTER 0x38 #define EXLFEVR_RIGHT_MASK 0x001f #define EXLFEVR_RIGHT_OPTIONAL_MASK 0x003f #define EXLFEVR_RIGHT_MTUE 0x0080 #define EXLFEVR_LEFT_MASK 0x1f00 #define EXLFEVR_LEFT_OPTIONAL_MASK 0x3f00 #define EXLFEVR_LEFT_MUTE 0x8000 /* Extended Modem ID Register 3ch - Optional */ #define AC97_EXTENDED_MODEM_ID_REGISTER 0x3c #define EMIDR_LINE1 0x0001 #define EMIDR_LINE2 0x0002 #define EMIDR_HSET 0x0004 #define EMIDR_CID1 0x0008 #define EMIDR_CID2 0x0010 #define EMIDR_PRIMARY_CODEC 0x0000 #define EMIDR_SECONDARY_01_CODEC 0x4000 #define EMIDR_SECONDARY_10_CODEC 0x8000 #define EMIDR_SECONDARY_11_CODEC 0xc000 /* Extended Modem Status and Control Register 3eh - Optional */ #define AC97_EXTENDED_MODE_STAT_CTRL_REGISTER 0x3e #define EMSCR_BPIO 0x0001 #define EMSCR_MREF 0x0002 #define EMSCR_ADC1 0x0004 #define EMSCR_DAC1 0x0008 #define EMSCR_ADC2 0x0010 #define EMSCR_DAC2 0x0020 #define EMSCR_HADC 0x0040 #define EMSCR_HDAC 0x0080 #define EMSCR_PRA 0x0100 #define EMSCR_PRB 0x0200 #define EMSCR_PRC 0x0400 #define EMSCR_PRD 0x0800 #define EMSCR_PRE 0x1000 #define EMSCR_PRF 0x2000 #define EMSCR_PRG 0x4000 #define EMSCR_PRH 0x8000 /* Extended Modem Line 1 DAC/ADC Sample Rate Register 40h - Optional */ #define AC97_EXTENDED_MODEM_LINE1_RATE_REGISTER 0x40 /* Extended Modem Line 2 DAC/ADC Sample Rate Register 42h - Optional */ #define AC97_EXTENDED_MODEM_LINE2_RATE_REGISTER 0x42 /* Extended Modem Handset Sample Rate Register 44h - Optional */ #define AC97_EXTENDED_MODEM_HANDSET_RATE_REGISTER 0x44 /* Extended Modem Line 1 DAC/ADC Level Register 46h - Optional */ #define AC97_EXTENDED_MODEM_LINE1_LEVEL_REGISTER 0x46 #define EML1LR_ADC_LEVEL_MASK 0x000f #define EML1LR_ADC_LEVEL_MUTE 0x0080 #define EML1LR_DAC_LEVEL_MASK 0x0f00 #define EML1LR_DAC_LEVEL_MUTE 0x8000 /* Extended Modem Line 2 DAC/ADC Level Register 48h - Optional */ #define AC97_EXTENDED_MODEM_LINE2_LEVEL_REGISTER 0x48 #define EML2LR_ADC_LEVEL_MASK 0x000f #define EML2LR_ADC_LEVEL_MUTE 0x0080 #define EML2LR_DAC_LEVEL_MASK 0x0f00 #define EML2LR_DAC_LEVEL_MUTE 0x8000 /* Extended Modem Handset DAC/ADC Level Register 4ah - Optional */ #define AC97_EXTENDED_MODEM_HANDSET_LEVEL_REGISTER 0x4a #define EMHLR_ADC_LEVEL_MASK 0x000f #define EMHLR_ADC_LEVEL_MUTE 0x0080 #define EMHLR_DAC_LEVEL_MASK 0x0f00 #define EMHLR_DAC_LEVEL_MUTE 0x8000 /* Extended Modem GPIO Pin Configuration Register 4ch - Optional */ #define AC97_EXTENDED_MODEM_GPIO_PIN_REGISTER 0x4c /* Extended Modem GPIO Pin Polarity Register 4eh - Optional */ #define AC97_EXTENDED_MODEM_GPIO_POLARITY_REGISTER 0x4e /* Extended Modem GPIO Pin Sticky Register 50h - Optional */ #define AC97_EXTENDED_MODEM_GPIO_STICKY_REGISTER 0x50 /* Extended Modem GPIO Pin Wake-up Mask Register 52h - Optional */ #define AC97_EXTENDED_MODEM_GPIO_WAKEUP_REGISTER 0x52 /* Extended Modem GPIO Pin Status Mask Register 54h - Optional */ #define AC97_EXTENDED_MODEM_GPIO_STATUS_REGISTER 0x54 /* Extended Modem AFE Status and Control Register 56h - Optional */ #define AC97_EXTENDED_MODEM_AFE_STAT_CTRL_REGISTER 0x56 #define EMAFESCR_L1B0 0x0001 #define EMAFESCR_L1B1 0x0002 #define EMAFESCR_L1B2 0x0004 #define EMAFESCR_L2B0 0x0010 #define EMAFESCR_L2B1 0x0020 #define EMAFESCR_L2B2 0x0040 #define EMAFESCR_HSB0 0x0100 #define EMAFESCR_HSB1 0x0200 #define EMAFESCR_HSB2 0x0400 #define EMAFESCR_MLINK_ON 0x0000 #define EMAFESCR_MLINK_OFF 0x1000 #define EMAFESCR_CIDR 0x2000 #define EMAFESCR_CID1 0x4000 #define EMAFESCR_CID2 0x8000 /* Vender Reserved Registers 5ah - 7ah - Optional */ #define AC97_VENDOR_REGISTER_01 0x5a #define AC97_VENDOR_REGISTER_02 0x5c #define AC97_VENDOR_REGISTER_03 0x5e #define AC97_VENDOR_REGISTER_04 0x60 #define AC97_VENDOR_REGISTER_05 0x62 #define AC97_VENDOR_REGISTER_06 0x64 #define AC97_VENDOR_REGISTER_07 0x66 #define AC97_VENDOR_REGISTER_08 0x68 #define AC97_VENDOR_REGISTER_09 0x6a #define AC97_VENDOR_REGISTER_10 0x6c #define AC97_VENDOR_REGISTER_11 0x6e #define AC97_VENDOR_REGISTER_12 0x70 #define AC97_VENDOR_REGISTER_13 0x72 #define AC97_VENDOR_REGISTER_14 0x74 #define AC97_VENDOR_REGISTER_15 0x76 #define AC97_VENDOR_REGISTER_16 0x78 #define AC97_VENDOR_REGISTER_17 0x7a /* Vendor ID1 Register 7ch */ #define AC97_VENDOR_ID1_REGISTER 0x7c #define VID1R_CHAR2_MASK 0x00ff #define VID1R_CHAR1_MASK 0xff00 /* Vendor ID2 Register 7eh */ #define AC97_VENDOR_ID2_REGISTER 0x7e #define VID2R_REVISION_MASK 0x00ff #define VID2R_CHAR3_MASK 0xff00 #endif /* _KERNEL */ #ifdef __cplusplus } #endif #endif /* _SYS_AC97_H */