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Annotation of XNU/iokit/Drivers/platform/drvAppleCuda/AppleVIA6522.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * The contents of this file constitute Original Code as defined in and
        !             7:  * are subject to the Apple Public Source License Version 1.1 (the
        !             8:  * "License").  You may not use this file except in compliance with the
        !             9:  * License.  Please obtain a copy of the License at
        !            10:  * http://www.apple.com/publicsource and read it before using this file.
        !            11:  * 
        !            12:  * This Original Code and all software distributed under the License are
        !            13:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            14:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            15:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            16:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            17:  * License for the specific language governing rights and limitations
        !            18:  * under the License.
        !            19:  * 
        !            20:  * @APPLE_LICENSE_HEADER_END@
        !            21:  */
        !            22: /*
        !            23:  * Copyright 1996 1995 by Open Software Foundation, Inc. 1997 1996 1995 1994 1993 1992 1991  
        !            24:  *              All Rights Reserved 
        !            25:  *  
        !            26:  * Permission to use, copy, modify, and distribute this software and 
        !            27:  * its documentation for any purpose and without fee is hereby granted, 
        !            28:  * provided that the above copyright notice appears in all copies and 
        !            29:  * that both the copyright notice and this permission notice appear in 
        !            30:  * supporting documentation. 
        !            31:  *  
        !            32:  * OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE 
        !            33:  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 
        !            34:  * FOR A PARTICULAR PURPOSE. 
        !            35:  *  
        !            36:  * IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR 
        !            37:  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 
        !            38:  * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT, 
        !            39:  * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION 
        !            40:  * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 
        !            41:  * 
        !            42:  */
        !            43: /*
        !            44:  * Copyright 1996 1995 by Apple Computer, Inc. 1997 1996 1995 1994 1993 1992 1991  
        !            45:  *              All Rights Reserved 
        !            46:  *  
        !            47:  * Permission to use, copy, modify, and distribute this software and 
        !            48:  * its documentation for any purpose and without fee is hereby granted, 
        !            49:  * provided that the above copyright notice appears in all copies and 
        !            50:  * that both the copyright notice and this permission notice appear in 
        !            51:  * supporting documentation. 
        !            52:  *  
        !            53:  * APPLE COMPUTER DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE 
        !            54:  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 
        !            55:  * FOR A PARTICULAR PURPOSE. 
        !            56:  *  
        !            57:  * IN NO EVENT SHALL APPLE COMPUTER BE LIABLE FOR ANY SPECIAL, INDIRECT, OR 
        !            58:  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 
        !            59:  * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT, 
        !            60:  * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION 
        !            61:  * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 
        !            62:  */
        !            63: /*
        !            64:  * MKLINUX-1.0DR2
        !            65:  */
        !            66: /*
        !            67:  * 18 June 1998 sdouglas
        !            68:  * Start IOKit version.
        !            69:  */
        !            70: 
        !            71: 
        !            72: /*
        !            73:     File:       via6522.h
        !            74: 
        !            75:     Contains:   xxx put contents here xxx
        !            76: 
        !            77:     Written by: xxx put writers here xxx
        !            78: 
        !            79:     Copyright:  � 1993, 1995 by Apple Computer, Inc., all rights reserved.
        !            80: 
        !            81:     Change History (most recent first):
        !            82: 
        !            83:          <1>     2/22/95    AM      First checked in.
        !            84:          <1>    04/04/94    MRN     First checked in.
        !            85: 
        !            86: */
        !            87: 
        !            88: /*
        !            89:  * Copyright 1987-91 Apple Computer, Inc.
        !            90:  * All Rights Reserved.
        !            91:  */
        !            92: 
        !            93: #ifndef __VIA6522_H__
        !            94: #define __VIA6522_H__
        !            95: 
        !            96: /*
        !            97:  *   Synertek SY6522 VIA Versatile Interface Adapter
        !            98:  */
        !            99: 
        !           100: /*
        !           101:  * This has been modified to address BOTH the via and RBV registers,
        !           102:  * because we know that both chips ignore part of the address, thus
        !           103:  * only responding correctly.  It's ugly, but the ROM does it...
        !           104:  */
        !           105: 
        !           106: #if defined(powerc) || defined (__powerc)
        !           107: #pragma options align=mac68k
        !           108: #endif
        !           109:  
        !           110: typedef struct via6522Regs                      /* VIA / RBV address */
        !           111:     {
        !           112:     volatile unsigned char  vBufB;              /* 0000/0000 register b */  
        !           113:     volatile unsigned char  RvExp;              /* 0001 RBV future expansion */
        !           114:     volatile unsigned char  RvSlotIFR;          /* 0002 RBV Slot interrupts reg. */
        !           115:     volatile unsigned char  RvIFR;              /* 0003 RBV interrupt flag reg. */
        !           116:     unsigned char           jnk0[ 12 ];
        !           117: 
        !           118:     volatile unsigned char  RvMonP;             /* xxxx/0010 RBV video monitor type */
        !           119:     volatile unsigned char  RvChpT;             /* xxxx/0011 RBV test mode register */
        !           120:     volatile unsigned char  RvSlotIER;          /* xxxx/0012 RBV slot interrupt enables */
        !           121:     volatile unsigned char  RvIER;              /* xxxx/0013 RBV interrupt flag enable reg */
        !           122:     unsigned char           jnk1[ 0x1FF - 0x13 ];
        !           123: 
        !           124:     volatile unsigned char  vBufAH;             /* 0200 buffer a (with handshake). */
        !           125:     unsigned char           jnk2[ 0x1FF ];      /* Dont use! Here only for completeness */
        !           126: 
        !           127:     volatile unsigned char  vDIRB;              /* 0400 data direction register B */
        !           128:     unsigned char           jnk25[ 0x1FF ];
        !           129: 
        !           130:     volatile unsigned char  vDIRA;              /* 0600 data direction register A */
        !           131:     unsigned char           jnk3[ 0x1FF ];
        !           132: 
        !           133:     volatile unsigned char  vT1C;               /* 0800 timer one low */
        !           134:     unsigned char           jnk4[ 0x1FF ];
        !           135: 
        !           136:     volatile unsigned char  vT1CH;              /* 0A00 timer one high */
        !           137:     unsigned char           jnk5[ 0x1FF ];
        !           138: 
        !           139:     volatile unsigned char  vT1L;               /* 0C00 timer one latches low */
        !           140:     unsigned char           jnk6[ 0x1FF ];
        !           141: 
        !           142:     volatile unsigned char  vT1LH;              /* 0E00 timer one latches high */
        !           143:     unsigned char           jnk7[ 0x1FF ];
        !           144: 
        !           145:     volatile unsigned char  vT2C;               /* 1000 timer 2 low */
        !           146:     unsigned char           jnk8[ 0x1FF ];
        !           147: 
        !           148:     volatile unsigned char  vT2CH;              /* 1200 timer two counter high */
        !           149:     unsigned char           jnk9[ 0x1FF ];
        !           150: 
        !           151:     volatile unsigned char  vSR;                /* 1400 shift register */   
        !           152:     unsigned char           jnka[ 0x1FF ];
        !           153: 
        !           154:     volatile unsigned char  vACR;               /* 1600 auxilary control register */    
        !           155:     unsigned char           jnkb[ 0x1FF ];
        !           156: 
        !           157:     volatile unsigned char  vPCR;               /* 1800 peripheral control register */
        !           158:     unsigned char           jnkc[ 0x1FF ];
        !           159: 
        !           160:     volatile unsigned char  vIFR;               /* 1A00 interrupt flag register */
        !           161:     unsigned char           jnkd[ 0x1FF ];
        !           162: 
        !           163:     volatile unsigned char  vIER;               /* 1C00 interrupt enable register */    
        !           164:     unsigned char           jnkf[ 0x1FF ];
        !           165: 
        !           166:     volatile unsigned char  vBufA;              /* 1E00 register A, read and write */
        !           167:     } via6522Regs;
        !           168: 
        !           169: #if defined(powerc) || defined(__powerc)
        !           170: #pragma options align=reset
        !           171: #endif
        !           172: 
        !           173: 
        !           174: /*  Register B contents */
        !           175: 
        !           176: #define VRB_POWEROFF    0x04            /* disk head select */
        !           177: #define RBV_POWEROFF    VRB_POWEROFF
        !           178: #define VRB_BUSLOCK     0x02            /* NuBus Transactions are locked */
        !           179: 
        !           180: 
        !           181: /*  Register A contents */
        !           182: 
        !           183: #define VRA_DRIVE       0x10            /* drive select */
        !           184: #define VRA_HEAD        0x20            /* disk head select */
        !           185: 
        !           186: 
        !           187: /*  Auxillary control register contents */
        !           188: 
        !           189: #define VAC_PAENL       0x01            /* Enable latch for PA */
        !           190: #define VAC_PADISL      0x00            /* Disable latch for PA */
        !           191: #define VAC_PBENL       0x02            /* Enable latch for PA */
        !           192: #define VAC_PBDISL      0x00            /* Disable latch for PA */
        !           193: #define VAC_SRDIS       0x00            /* Shift Reg Disabled */
        !           194: #define VAC_SRMD1       0x04            /* Shift In under control of T2 */
        !           195: #define VAC_SRMD2       0x08            /* Shift In under control of Phase 2 */
        !           196: #define VAC_SRMD3       0x0C            /* Shift in under control of Ext Clk */
        !           197: #define VAC_SRMD4       0x10            /* Shift Out free running at T2 rate */
        !           198: #define VAC_SRMD5       0x14            /* Shift Out under control of T2 */
        !           199: #define VAC_SRMD6       0x18            /* Shift Out under control of theta2 */
        !           200: #define VAC_SRMD7       0x1C            /* Shift Out under control of Ext Clk */
        !           201: #define VAC_T2CTL       0x20            /* Timer two, control */
        !           202: #define VAC_T2TI        0x00            /* Timer Two, Timed Interrupt */
        !           203: #define VAC_T2CD        0x20            /* Timer Two, count down with pulses on PB6 */
        !           204: #define VAC_T1CONT      0x40            /* Timer one, continous counting */
        !           205: #define VAC_T11SHOT     0x00            /* Timer One, one shot output */
        !           206: #define VAC_T1PB7       0x80            /* Timer one, drives PB7 */
        !           207: #define VAC_T1PB7DIS    0x00            /* Timer one, drives PB7 disabled */
        !           208: 
        !           209: 
        !           210: /*  Interrupt enable register contents */
        !           211: 
        !           212: #define VIE_CA2         0x01            /* interrupt on CA2 */
        !           213: #define VIE_CA1         0x02            /* interrupt on CA1 */
        !           214: #define VIE_SR          0x04            /* Shift Register */
        !           215: #define VIE_CB2         0x08            /* interrupt on CB2 */
        !           216: #define VIE_CB1         0x10            /* interrupt on CB1 */
        !           217: #define VIE_TIM2        0x20            /* timer 2 interrupt */
        !           218: #define VIE_TIM1        0x40            /* timer 1 interrupt */
        !           219: #define VIE_SET         0x80            /* Set interrupt bits if this is on */
        !           220: #define VIE_CLEAR       0x00            /* Clear bits if used */
        !           221: 
        !           222: #define VIE_ALL         ( VIE_TIM1 | VIE_TIM2 | VIE_CB1 | VIE_CB2 | VIE_SR | VIE_CA1 | VIE_CA2 )
        !           223: 
        !           224: 
        !           225: /*  VIA Data Direction Register Contents */
        !           226: 
        !           227: #define VDR_P7_O        0x80            /* P7 is output */
        !           228: #define VDR_P7_I        0x00            /* P7 is input */
        !           229: #define VDR_P6_O        0x40            /* P6 is output */
        !           230: #define VDR_P6_I        0x00            /* P6 is input */
        !           231: #define VDR_P5_O        0x20            /* P5 is output */
        !           232: #define VDR_P5_I        0x00            /* P5 is input */
        !           233: #define VDR_P4_O        0x10            /* P4 is output */
        !           234: #define VDR_P4_I        0x00            /* P4 is input */
        !           235: #define VDR_P3_O        0x08            /* P3 is output */
        !           236: #define VDR_P3_I        0x00            /* P3 is input */
        !           237: #define VDR_P2_O        0x04            /* P2 is output */
        !           238: #define VDR_P2_I        0x00            /* P2 is input */
        !           239: #define VDR_P1_O        0x02            /* P1 is output */
        !           240: #define VDR_P1_I        0x00            /* P1 is input */
        !           241: #define VDR_P0_O        0x01            /* P0 is output */
        !           242: #define VDR_P0_I        0x00            /* P0 is input */
        !           243: 
        !           244: 
        !           245: /*  VIA1 Register A contents where they differ from standard VIA1 */
        !           246: 
        !           247: #define RBV_BURNIN      0x01            /* burnin flag */
        !           248: #define RBV_CPUID0      0x02            /* CPU id bit 0 */
        !           249: #define RBV_CPUID1      0x04            /* CPU id bit 1 */
        !           250: #define RBV_CPUID2      0x10            /* CPU id bit 2 */
        !           251: #define RBV_CPUID3      0x40            /* CPU id bit 3 */
        !           252: 
        !           253: 
        !           254: /*  VIA1 Register B contents where they differ from standard VIA1 */
        !           255: 
        !           256: #define RBV_PARDIS      0x40            /* disable parity */
        !           257: #define RBV_PAROK       0x80            /* parity OK */
        !           258: 
        !           259: #define EVRB_XCVR       0x08            /* XCVR_SESSION* */
        !           260: #define EVRB_FULL       0x10            /* VIA_FULL */
        !           261: #define EVRB_SYSES      0x20            /* SYS_SESSION */
        !           262: #define EVRB_AUXIE      0x00            /* Enable A/UX Interrupt Scheme */
        !           263: #define EVRB_AUXID      0x40            /* Disable A/UX Interrupt Scheme */
        !           264: #define EVRB_SFTWRIE    0x00            /* Software Interrupt ReQuest */
        !           265: #define EVRB_SFTWRID    0x80            /* Software Interrupt ReQuest */
        !           266: 
        !           267: 
        !           268: /*  VIA2 Register A contents where they differ from standard VIA2 */
        !           269: 
        !           270: #define RBV_SZEROIRQ    0x40            /* slot 0 irq */
        !           271: #define EVRA_ENETIRQ    0x01            /* Ethernet irq */
        !           272: #define EVRA_VIDIRQ     0x40            /* Video irq */
        !           273: 
        !           274: 
        !           275: /*  VIA2 Register B contents where they differ from standard VIA2 */
        !           276: 
        !           277: #define RBV_CDIS        0x01            /* disable external cache */
        !           278: #define RBV_CFLUSH      0x08            /* flush external cache */
        !           279: #define EVRB_LED        0x10            /* LED */
        !           280: #define RBV_PARODD      0x80            /* 1 for odd, 0 for even */
        !           281: 
        !           282: 
        !           283: /*  Video monitor parameters: */
        !           284: #define RBV_DEPTH       0x07            /* bits per pixel: 000=1,001=2,010=4,011=8 */
        !           285: #define RBV_MONID       0x38            /* monitor type as below */
        !           286: #define RBV_VIDOFF      0x40            /* 1 turns off onboard video */
        !           287: 
        !           288: 
        !           289: /*  Supported video monitor types: */
        !           290: 
        !           291: #define MON_15BW        ( 1 << 3 )      /* 15" BW  portrait */
        !           292: #define MON_IIGS        ( 2 << 3 )      /* modified IIGS monitor */
        !           293: #define MON_15RGB       ( 5 << 3 )      /* 15" RGB portrait */
        !           294: #define MON_12OR13      ( 6 << 3 )      /* 12" BW or 13" RGB */
        !           295: #define MON_NONE        ( 7 << 3 )      /* No monitor attached */
        !           296: 
        !           297: #endif /* __VIA6522_H__ */

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