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