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Annotation of 43BSDTahoe/new/X/libibm/libsrc/apa8c.h, revision 1.1

1.1     ! root        1: /* $Header: apa8c.h,v 10.1 86/11/19 10:45:18 jg Exp $ */
        !             2: /* apa8c.h - Definitions and macros required to access APA8C
        !             3:  *
        !             4:  *     Defines required to support APA8C
        !             5:  *
        !             6:  *     Author:
        !             7:  *             Scott Bates
        !             8:  *             Brown University
        !             9:  *             IRIS, Box 1946
        !            10:  *             Providence, RI 02912
        !            11:  *
        !            12:  *
        !            13:  *             Copyright (c) 1986 Brown University
        !            14:  *
        !            15:  * Permission to use, copy, modify and distribute this software and its
        !            16:  * documentation for any purpose and without fee is hereby granted, provided
        !            17:  * that the above copyright notice appear in all copies, and that both
        !            18:  * that copyright notice and this permission notice appear in supporting
        !            19:  * documentation, and that the name of Brown University not be used in
        !            20:  * advertising or publicity pertaining to distribution of the software
        !            21:  * without specific, written prior permission. Brown University makes no
        !            22:  * representations about the suitability of this software for any purpose.
        !            23:  * It is provided "as-is" without express or implied warranty.
        !            24:  */
        !            25: 
        !            26: #define SCREEN_BASE (0xF4D20000)       /* base address for screen bitmap */
        !            27: #define XDEV_ID          XDEV_IBMAPA8C         /* device id for info structure */
        !            28: 
        !            29: #define REAL_SCREEN_WIDTH      1024    /* number of bits/line for apa8c */
        !            30: #define REAL_SCREEN_HEIGHT     512     /* Number of lines on apa8c */
        !            31: 
        !            32: #define X_SCREEN_WIDTH         720     /* number of bits/line for apa8c display */
        !            33: #define X_SCREEN_HEIGHT        512     /* visible lines on the screen */
        !            34: 
        !            35: #define SCREEN_DEVICE   "/dev/apa8c"   /* device name */
        !            36: #define MOUSE_DEVICE   "/dev/msapa8c"  /* device name of mouse for display */
        !            37: 
        !            38: #define CURSOR_TYPE    SOFT_CURSOR     /* apa8c uses software cursor */
        !            39: 
        !            40: #define DISPLAY_INIT() apa8c_init()    /* display initialization routine */
        !            41: 
        !            42: /*
        !            43:  * Control register (short)
        !            44:  */
        !            45: 
        !            46: #define APA8C_FC 0xF0000150
        !            47: 
        !            48: /*
        !            49:  * Data mask registers (2 each 8 bits)
        !            50:  */
        !            51: 
        !            52: #define APA8C_DM 0xF0000152
        !            53: 
        !            54: /*
        !            55:  * Color Plane Select register.
        !            56:  */
        !            57: 
        !            58: #define CPS_REG 0xF0000154
        !            59: 
        !            60: /*
        !            61:  * Foreground/ Background register.
        !            62:  */
        !            63: 
        !            64: #define FGBG_REG 0xF0000156
        !            65: 
        !            66: /*
        !            67:  * Video Look-up Table register.
        !            68:  */
        !            69: 
        !            70: #define VLT_REG 0xF0000158
        !            71: 
        !            72: /*
        !            73:  * bits 0-2  rotate count
        !            74:  */
        !            75: 
        !            76: #define DCR_ROTMASK 0x0007
        !            77: 
        !            78: /*
        !            79:  * bits 3-5  logic unit function control
        !            80:  */
        !            81:  
        !            82: #define DCR_FCMASK     0x0038
        !            83: #define DCR_FCOR       0x0028
        !            84: #define DCR_FCNOR      0x0038
        !            85: #define DCR_FCPA       0x0010
        !            86: #define DCR_FCPB       0x0000
        !            87: #define DCR_FCPNA      0x0030
        !            88: #define DCR_FCPNB      0x0020
        !            89: 
        !            90: #define DEFAULT_FUNC   DCR_FCPNB
        !            91: #define HIDDEN_FUNC     DCR_FCPA
        !            92: #define RDWR_FUNC      DCR_FCPA
        !            93: 
        !            94: /*
        !            95:  * 6-7 reserved
        !            96:  */
        !            97: 
        !            98: /*
        !            99:  * 8-9 memory mode
        !           100:  */
        !           101: 
        !           102: #define DCR_MEMMODE    0x0300
        !           103: #define DCR_SWR                0x0000
        !           104: #define DCR_ISWR       0x0100
        !           105: #define DCR_ADWR       0x0200
        !           106: #define DCR_AURW       0x0300
        !           107: 
        !           108: /*
        !           109:  * 10 inc/dec of the address counter
        !           110:  */
        !           111: 
        !           112: #define DCR_DEC                0x0400
        !           113: #define DCR_INC                ~0x0400
        !           114: 
        !           115: /*
        !           116:  * 11 x/y stepping
        !           117:  */
        !           118: 
        !           119: #define DCR_X          0x0800
        !           120: #define DCR_Y          ~0x0800
        !           121: 
        !           122: /*
        !           123:  * 12  1 means block transfer
        !           124:  */
        !           125: 
        !           126: #define DCR_BT         0x1000
        !           127: 
        !           128: /*
        !           129:  * 13  1 means interrupt enable
        !           130:  */
        !           131: 
        !           132: #define DCR_IEN                0x2000
        !           133: 
        !           134: /*
        !           135:  * 14  1 means Sync enable
        !           136:  */
        !           137: 
        !           138: #define DCR_SEN                0x4000
        !           139: 
        !           140: /*
        !           141:  * 15  1 means Video enable
        !           142:  */
        !           143: 
        !           144: #define DCR_VEN                0x8000
        !           145: 
        !           146: /*
        !           147:  * Data Mask Register masks (typically are the
        !           148:  * inverse of each other)
        !           149:  */
        !           150: 
        !           151: #define DM_A           0xFF00
        !           152: #define DM_B           0x00FF
        !           153: 
        !           154: #define CLEAR_DM       0x0000
        !           155: #define DEFAULT_DM     DM_B
        !           156: #define HIDDEN_DM       DM_A
        !           157: #define RDWR_DM                DM_A
        !           158: 
        !           159: /*
        !           160:  * Values for the writemask.
        !           161:  */
        !           162: 
        !           163: #define NOMASK 0x0000
        !           164: #define MASKBYTE2 0x00FF
        !           165: #define MASKBYTE1 0xFF00
        !           166: 
        !           167: /*
        !           168:  * Values for the color plane select register.
        !           169:  */
        !           170: 
        !           171: #define DEFAULT_CPS 0x001F;
        !           172: 
        !           173: /*
        !           174:  * Values for the foreground/background register.
        !           175:  */
        !           176: 
        !           177: #define DEFAULT_FGBG 0x00F0;
        !           178: 
        !           179: /*
        !           180:  * Color definitions (not all colors are defined)
        !           181:  */
        !           182: 
        !           183: #define DARK_RED       0x0100
        !           184: #define DARK_GREEN     0x0400
        !           185: #define DARK_BLUE      0x1000
        !           186: #define RED            0x0200
        !           187: #define GREEN          0x0800
        !           188: #define BLUE           0x2000
        !           189: #define LIGHT_RED      0x0300
        !           190: #define LIGHT_GREEN    0x0C00
        !           191: #define LIGHT_BLUE     0x3000
        !           192: #define BLACK          0x0000
        !           193: #define WHITE          0x3F00
        !           194: 
        !           195: /*
        !           196:  * Defines to work with the Video Look-up table.
        !           197:  * foreground = 1 bits     background = 0 bits
        !           198:  * (Note: In "X" zero bits are black and one bits are white)
        !           199:  */
        !           200: 
        !           201: #define VLT_SIZE 16
        !           202: #define FG_COLOR WHITE
        !           203: #define BG_COLOR DARK_GREEN
        !           204: 
        !           205: /*
        !           206:  * Bitmap to BUS address offsets.  All address offsets in the bitmap area
        !           207:  * must be multiplied by 2 before being used as BUS offsets.
        !           208:  */
        !           209: 
        !           210: #define BM_TO_BUS(n)   ((n) << 1)
        !           211: 
        !           212: /*
        !           213:  * The physical bitmap addresses on the apa8C adaptor card
        !           214:  * go from 0000 to 0xFFFF. (the size of a short or word, 16 bits addresses
        !           215:  * these spots.
        !           216:  */
        !           217: 
        !           218: #define MAXOFFSET 0xFFFF
        !           219: 
        !           220: /*
        !           221:  * This is defined to be the last scan line in the hidden area.
        !           222:  * It is needed because the side affect of setting the writemask registers
        !           223:  * is the mask is also written to the bitmap.
        !           224:  */
        !           225: 
        !           226: #define WRMASK_SCREEN_BASE \
        !           227:        (*(u_short *)(SCREEN_BASE + BM_TO_BUS(MAXOFFSET - 1)))
        !           228: 
        !           229: #define SET_APA8C_FC(control_info)     {                       \
        !           230:        *(u_short *) APA8C_FC = (u_short)(control_info);        \
        !           231: }
        !           232: 
        !           233: #define SET_APA8C_WRITEMASK(mask) {                                    \
        !           234:        SET_APA8C_FC(DCR_SEN | DCR_VEN | DCR_ISWR | DCR_X | DCR_FCOR);  \
        !           235:        WRMASK_SCREEN_BASE = (u_short) mask;                            \
        !           236: }
        !           237: 
        !           238: #define SET_APA8C_DATAMASK(mask) {             \
        !           239:        *(u_short *)APA8C_DM = (u_short) mask;  \
        !           240: }

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