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awacs.h
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awacs.h
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/*
* Driver for PowerMac AWACS onboard soundchips
* Copyright (c) 2001 by Takashi Iwai <[email protected]>
* based on dmasound.c.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __AWACS_H
#define __AWACS_H
/*******************************/
/* AWACs Audio Register Layout */
/*******************************/
struct awacs_regs {
unsigned control; /* Audio control register */
unsigned pad0[3];
unsigned codec_ctrl; /* Codec control register */
unsigned pad1[3];
unsigned codec_stat; /* Codec status register */
unsigned pad2[3];
unsigned clip_count; /* Clipping count register */
unsigned pad3[3];
unsigned byteswap; /* Data is little-endian if 1 */
};
/*******************/
/* Audio Bit Masks */
/*******************/
/* Audio Control Reg Bit Masks */
/* ----- ------- --- --- ----- */
#define MASK_ISFSEL (0xf) /* Input SubFrame Select */
#define MASK_OSFSEL (0xf << 4) /* Output SubFrame Select */
#define MASK_RATE (0x7 << 8) /* Sound Rate */
#define MASK_CNTLERR (0x1 << 11) /* Error */
#define MASK_PORTCHG (0x1 << 12) /* Port Change */
#define MASK_IEE (0x1 << 13) /* Enable Interrupt on Error */
#define MASK_IEPC (0x1 << 14) /* Enable Interrupt on Port Change */
#define MASK_SSFSEL (0x3 << 15) /* Status SubFrame Select */
/* Audio Codec Control Reg Bit Masks */
/* ----- ----- ------- --- --- ----- */
#define MASK_NEWECMD (0x1 << 24) /* Lock: don't write to reg when 1 */
#define MASK_EMODESEL (0x3 << 22) /* Send info out on which frame? */
#define MASK_EXMODEADDR (0x3ff << 12) /* Extended Mode Address -- 10 bits */
#define MASK_EXMODEDATA (0xfff) /* Extended Mode Data -- 12 bits */
/* Audio Codec Control Address Values / Masks */
/* ----- ----- ------- ------- ------ - ----- */
#define MASK_ADDR0 (0x0 << 12) /* Expanded Data Mode Address 0 */
#define MASK_ADDR_MUX MASK_ADDR0 /* Mux Control */
#define MASK_ADDR_GAIN MASK_ADDR0
#define MASK_ADDR1 (0x1 << 12) /* Expanded Data Mode Address 1 */
#define MASK_ADDR_MUTE MASK_ADDR1
#define MASK_ADDR_RATE MASK_ADDR1
#define MASK_ADDR2 (0x2 << 12) /* Expanded Data Mode Address 2 */
#define MASK_ADDR_VOLA MASK_ADDR2 /* Volume Control A -- Headphones */
#define MASK_ADDR_VOLHD MASK_ADDR2
#define MASK_ADDR4 (0x4 << 12) /* Expanded Data Mode Address 4 */
#define MASK_ADDR_VOLC MASK_ADDR4 /* Volume Control C -- Speaker */
#define MASK_ADDR_VOLSPK MASK_ADDR4
/* additional registers of screamer */
#define MASK_ADDR5 (0x5 << 12) /* Expanded Data Mode Address 5 */
#define MASK_ADDR6 (0x6 << 12) /* Expanded Data Mode Address 6 */
#define MASK_ADDR7 (0x7 << 12) /* Expanded Data Mode Address 7 */
/* Address 0 Bit Masks & Macros */
/* ------- - --- ----- - ------ */
#define MASK_GAINRIGHT (0xf) /* Gain Right Mask */
#define MASK_GAINLEFT (0xf << 4) /* Gain Left Mask */
#define MASK_GAINLINE (0x1 << 8) /* Disable Mic preamp */
#define MASK_GAINMIC (0x0 << 8) /* Enable Mic preamp */
#define MASK_MUX_CD (0x1 << 9) /* Select CD in MUX */
#define MASK_MUX_MIC (0x1 << 10) /* Select Mic in MUX */
#define MASK_MUX_AUDIN (0x1 << 11) /* Select Audio In in MUX */
#define MASK_MUX_LINE MASK_MUX_AUDIN
#define SHIFT_GAINLINE 8
#define SHIFT_MUX_CD 9
#define SHIFT_MUX_MIC 10
#define SHIFT_MUX_LINE 11
#define GAINRIGHT(x) ((x) & MASK_GAINRIGHT)
#define GAINLEFT(x) (((x) << 4) & MASK_GAINLEFT)
/* Address 1 Bit Masks */
/* ------- - --- ----- */
#define MASK_ADDR1RES1 (0x3) /* Reserved */
#define MASK_RECALIBRATE (0x1 << 2) /* Recalibrate */
#define MASK_SAMPLERATE (0x7 << 3) /* Sample Rate: */
#define MASK_LOOPTHRU (0x1 << 6) /* Loopthrough Enable */
#define SHIFT_LOOPTHRU 6
#define MASK_CMUTE (0x1 << 7) /* Output C (Speaker) Mute when 1 */
#define MASK_SPKMUTE MASK_CMUTE
#define SHIFT_SPKMUTE 7
#define MASK_ADDR1RES2 (0x1 << 8) /* Reserved */
#define MASK_AMUTE (0x1 << 9) /* Output A (Headphone) Mute when 1 */
#define MASK_HDMUTE MASK_AMUTE
#define SHIFT_HDMUTE 9
#define MASK_PAROUT (0x3 << 10) /* Parallel Out (???) */
#define MASK_PAROUT0 (0x1 << 10) /* Parallel Out (???) */
#define MASK_PAROUT1 (0x1 << 11) /* Parallel Out (enable speaker) */
#define SHIFT_PAROUT 10
#define SHIFT_PAROUT0 10
#define SHIFT_PAROUT1 11
#define SAMPLERATE_48000 (0x0 << 3) /* 48 or 44.1 kHz */
#define SAMPLERATE_32000 (0x1 << 3) /* 32 or 29.4 kHz */
#define SAMPLERATE_24000 (0x2 << 3) /* 24 or 22.05 kHz */
#define SAMPLERATE_19200 (0x3 << 3) /* 19.2 or 17.64 kHz */
#define SAMPLERATE_16000 (0x4 << 3) /* 16 or 14.7 kHz */
#define SAMPLERATE_12000 (0x5 << 3) /* 12 or 11.025 kHz */
#define SAMPLERATE_9600 (0x6 << 3) /* 9.6 or 8.82 kHz */
#define SAMPLERATE_8000 (0x7 << 3) /* 8 or 7.35 kHz */
/* Address 2 & 4 Bit Masks & Macros */
/* ------- - - - --- ----- - ------ */
#define MASK_OUTVOLRIGHT (0xf) /* Output Right Volume */
#define MASK_ADDR2RES1 (0x2 << 4) /* Reserved */
#define MASK_ADDR4RES1 MASK_ADDR2RES1
#define MASK_OUTVOLLEFT (0xf << 6) /* Output Left Volume */
#define MASK_ADDR2RES2 (0x2 << 10) /* Reserved */
#define MASK_ADDR4RES2 MASK_ADDR2RES2
#define VOLRIGHT(x) (((~(x)) & MASK_OUTVOLRIGHT))
#define VOLLEFT(x) (((~(x)) << 6) & MASK_OUTVOLLEFT)
/* address 6 */
#define MASK_MIC_BOOST (0x4) /* screamer mic boost */
#define SHIFT_MIC_BOOST 2
/* Audio Codec Status Reg Bit Masks */
/* ----- ----- ------ --- --- ----- */
#define MASK_EXTEND (0x1 << 23) /* Extend */
#define MASK_VALID (0x1 << 22) /* Valid Data? */
#define MASK_OFLEFT (0x1 << 21) /* Overflow Left */
#define MASK_OFRIGHT (0x1 << 20) /* Overflow Right */
#define MASK_ERRCODE (0xf << 16) /* Error Code */
#define MASK_REVISION (0xf << 12) /* Revision Number */
#define MASK_MFGID (0xf << 8) /* Mfg. ID */
#define MASK_CODSTATRES (0xf << 4) /* bits 4 - 7 reserved */
#define MASK_INSENSE (0xf) /* port sense bits: */
#define MASK_HDPCONN 8 /* headphone plugged in */
#define MASK_LOCONN 4 /* line-out plugged in */
#define MASK_LICONN 2 /* line-in plugged in */
#define MASK_MICCONN 1 /* microphone plugged in */
#define MASK_LICONN_IMAC 8 /* line-in plugged in */
#define MASK_HDPRCONN_IMAC 4 /* headphone right plugged in */
#define MASK_HDPLCONN_IMAC 2 /* headphone left plugged in */
#define MASK_LOCONN_IMAC 1 /* line-out plugged in */
/* Clipping Count Reg Bit Masks */
/* -------- ----- --- --- ----- */
#define MASK_CLIPLEFT (0xff << 7) /* Clipping Count, Left Channel */
#define MASK_CLIPRIGHT (0xff) /* Clipping Count, Right Channel */
/* DBDMA ChannelStatus Bit Masks */
/* ----- ------------- --- ----- */
#define MASK_CSERR (0x1 << 7) /* Error */
#define MASK_EOI (0x1 << 6) /* End of Input --
only for Input Channel */
#define MASK_CSUNUSED (0x1f << 1) /* bits 1-5 not used */
#define MASK_WAIT (0x1) /* Wait */
/* Various Rates */
/* ------- ----- */
#define RATE_48000 (0x0 << 8) /* 48 kHz */
#define RATE_44100 (0x0 << 8) /* 44.1 kHz */
#define RATE_32000 (0x1 << 8) /* 32 kHz */
#define RATE_29400 (0x1 << 8) /* 29.4 kHz */
#define RATE_24000 (0x2 << 8) /* 24 kHz */
#define RATE_22050 (0x2 << 8) /* 22.05 kHz */
#define RATE_19200 (0x3 << 8) /* 19.2 kHz */
#define RATE_17640 (0x3 << 8) /* 17.64 kHz */
#define RATE_16000 (0x4 << 8) /* 16 kHz */
#define RATE_14700 (0x4 << 8) /* 14.7 kHz */
#define RATE_12000 (0x5 << 8) /* 12 kHz */
#define RATE_11025 (0x5 << 8) /* 11.025 kHz */
#define RATE_9600 (0x6 << 8) /* 9.6 kHz */
#define RATE_8820 (0x6 << 8) /* 8.82 kHz */
#define RATE_8000 (0x7 << 8) /* 8 kHz */
#define RATE_7350 (0x7 << 8) /* 7.35 kHz */
#define RATE_LOW 1 /* HIGH = 48kHz, etc; LOW = 44.1kHz, etc. */
#endif /* __AWACS_H */