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grf_rhreg.h revision 1.1
      1 /*
      2  *	$Id: grf_rhreg.h,v 1.1 1994/06/05 07:48:45 chopps Exp $
      3  */
      4 
      5 #ifndef _GRF_RHREG_H
      6 #define _GRF_RHREG_H
      7 
      8 /*
      9  * Written & Copyright by Lutz Vieweg. As for missing comments: see
     10  * grf_rt.*
     11  *
     12  * Lutz provided these sources in C++, I tried to keep as much of it when
     13  * converting to C. -mw-
     14  */
     15 
     16 #define EMPTY_ALPHA 0x2010 /* this is the char and the attribute
     17                               that AlphaErase will fill into the
     18                               text-screen  */
     19 
     20 #define MEMCLK 65000000  /* this is the memory clock value, you shouldn't
     21                             set it to less than 65000000, higher values may
     22                             speed up blits a little bit, if you raise this
     23                             value too much, some trash will appear on your
     24                             screen. */
     25 
     26 #define MEMSIZE 4        /* Set this to 1 or 4 (MB), according to the
     27                             RAM on your Retina BLT Z3 board */
     28 /*
     29  * The following definitions are places in the frame-buffer memory
     30  * which are used for special purposes. While the displayed screen
     31  * itself is always beginning at the start of the frame-buffer
     32  * memory, the following special places are located at the end
     33  * of the memory to keep free as much space as possible for the
     34  * screen - the user might want to use monitor-definitions with
     35  * huge logical dimensions (e.g. 2048x2000 ?). This way of defining
     36  * special locations in the frame-buffer memory is far from being
     37  * elegant - you may want to use you own, real memory-management...
     38  * but remember that some routines in RZ3_BSD.cc REALLY NEED those
     39  * memory locations to function properly, so if you manage the
     40  * frame-buffer memory on your own, make sure to change those
     41  * definitions appropriately.
     42  */
     43 
     44 /* reserve some space for one pattern line */
     45 #define PAT_MEM_SIZE 16*3
     46 #define PAT_MEM_OFF  (MEMSIZE*1024*1024 - PAT_MEM_SIZE)
     47 
     48 /* reserve some space for the hardware cursor (up to 64x64 pixels) */
     49 #define HWC_MEM_SIZE 1024
     50 #define HWC_MEM_OFF  ((PAT_MEM_OFF - HWC_MEM_SIZE) & 0xffffff00)
     51 
     52 /*
     53  * The following structure is passed to RZ3Init() and holds the
     54  * monitor-definition. You may either use one of the ready-made
     55  * definitions in RZ3_monitors.cc or you can define them on your
     56  * own, take a look at RZ3_monitors.cc for more information.
     57  */
     58 struct MonDef {
     59 
     60 	/* first the general monitor characteristics */
     61 
     62 	unsigned long  FQ;
     63 	unsigned char  FLG;
     64 
     65 	unsigned short MW;  /* physical screen width in pixels    */
     66 	                    /* has to be at least a multiple of 8 */
     67 	unsigned short MH;  /* physical screen height in pixels   */
     68 
     69 	unsigned short HBS;
     70 	unsigned short HSS;
     71 	unsigned short HSE;
     72 	unsigned short HBE;
     73 	unsigned short HT;
     74 	unsigned short VBS;
     75 	unsigned short VSS;
     76 	unsigned short VSE;
     77 	unsigned short VBE;
     78 	unsigned short VT;
     79 
     80 	unsigned short DEP;  /* Color-depth, 4 enables text-mode  */
     81 	                     /* 8 enables 256-color graphics-mode, */
     82 	                     /* 16 and 24bit gfx not supported yet */
     83 
     84 	unsigned char * PAL; /* points to 16*3 byte RGB-palette data   */
     85 	                     /* use LoadPalette() to set colors 0..255 */
     86 	                     /* in 256-color-gfx mode */
     87 
     88 	/*
     89 	 * all following entries are font-specific in
     90 	 * text-mode. Make sure your monitor
     91 	 * parameters are calculated for the
     92 	 * appropriate font width and height!
     93 	 */
     94 
     95 	unsigned short  TX;     /* Text-mode (DEP=4):          */
     96 	                        /* screen-width  in characters */
     97 
     98 	                        /* Gfx-mode (DEP > 4)          */
     99 	                        /* "logical" screen-width,     */
    100 	                        /* use values > MW to allow    */
    101 	                        /* hardware-panning            */
    102 
    103 	unsigned short  TY;     /* Text-mode:                  */
    104 	                        /* screen-height in characters */
    105 
    106 	                        /* Gfx-mode: "logical" screen  */
    107 	                        /* height for panning          */
    108 
    109 	/* the following values are currently unused for gfx-mode */
    110 
    111 	unsigned short  XY;     /* TX*TY (speeds up some calcs.) */
    112 
    113 	unsigned short  FX;     /* font-width (valid values: 4,7-16) */
    114 	unsigned short  FY;     /* font-height (valid range: 1-32) */
    115 	unsigned char * FData;  /* pointer to the font-data */
    116 
    117 	/*
    118 	 * The font data is simply an array of bytes defining
    119 	 * the chars in ascending order, line by line. If your
    120 	 * font is wider than 8 pixel, FData has to be an
    121 	 * array of words.
    122 	 */
    123 
    124 	unsigned short  FLo;    /* lowest character defined */
    125 	unsigned short  FHi;    /* highest char. defined */
    126 
    127 };
    128 
    129 
    130 /*
    131  * The following are the prototypes for the low-level
    132  * routines you may want to call.
    133  */
    134 
    135 #if 0
    136 
    137 #ifdef __GNUG__
    138 
    139 /* The prototypes for C++, prototypes for C (with explanations) below */
    140 
    141 "C" unsigned char * RZ3Init         (volatile void * HardWareAdress, struct MonDef * md);
    142 "C" void            RZ3SetCursorPos (unsigned short pos);
    143 "C" void            RZ3AlphaErase   (unsigned short xd, unsigned short yd,
    144                                             unsigned short  w, unsigned short  h );
    145 "C" void            RZ3AlphaCopy    (unsigned short xs, unsigned short ys,
    146                                             unsigned short xd, unsigned short yd,
    147                                             unsigned short  w, unsigned short  h  );
    148 "C" void            RZ3BitBlit      (struct grf_bitblt * gbb );
    149 "C" void            RZ3BitBlit16    (struct grf_bitblt * gbb );
    150 "C" void            RZ3LoadPalette  (unsigned char * pal, unsigned char firstcol, unsigned char colors);
    151 "C" void            RZ3SetPalette   (unsigned char colornum, unsigned char red, unsigned char green, unsigned char blue);
    152 "C" void            RZ3SetPanning   (unsigned short xoff, unsigned short yoff);
    153 "C" void            RZ3SetupHWC     (unsigned char col1, unsigned col2,
    154                                             unsigned char hsx, unsigned char hsy,
    155                                             const unsigned long * data);
    156 "C" void            RZ3DisableHWC   (void);
    157 "C" void            RZ3SetHWCloc    (unsigned short x, unsigned short y);
    158 #else
    159 
    160 /* The prototypes for C */
    161 /* with a little explanation */
    162 
    163 	unsigned char * RZ3Init(volatile void * BoardAdress, struct MonDef * md);
    164 
    165 /*
    166  * This routine initialises the Retina Z3 hardware, opens a
    167  * text- or gfx-mode screen, depending on the the value of
    168  * MonDef.DEP, and sets the cursor to position 0.
    169  * It takes as arguments a pointer to the hardware-base
    170  * address as it is denoted in the DevConf structure
    171  * of the AmigaDOS, and a pointer to a struct MonDef
    172  * which describes the screen-mode parameters.
    173  *
    174  * The routine returns 0 if it was unable to open the screen,
    175  * or an unsigned char * to the display memory when it
    176  * succeeded.
    177  *
    178  * The organisation of the display memory in text-mode is a
    179  * little strange (Intel-typically...) :
    180  *
    181  * Byte  00    01    02    03    04     05    06   etc.
    182  *     Char0  Attr0  --    --   Char1 Attr1   --   etc.
    183  *
    184  * You may set a character and its associated attribute byte
    185  * with a single word-access, or you may perform to byte writes
    186  * for the char and attribute. Each 2. word has no meaning,
    187  * and writes to theese locations are ignored.
    188  *
    189  * The attribute byte for each character has the following
    190  * structure:
    191  *
    192  * Bit  7     6     5     4     3     2     1     0
    193  *    BLINK BACK2 BACK1 BACK0 FORE3 FORE2 FORE1 FORE0
    194  *
    195  * Were FORE is the foreground-color index (0-15) and
    196  * BACK is the background color index (0-7). BLINK
    197  * enables blinking for the associated character.
    198  * The higher 8 colors in the standard palette are
    199  * lighter than the lower 8, so you may see FORE3 as
    200  * an intensity bit. If FORE == 1 or FORE == 9 and
    201  * BACK == 0 the character is underlined. Since I don't
    202  * think this looks good, it will probably change in a
    203  * future release.
    204  *
    205  * There's no routine "SetChar" or "SetAttr" provided,
    206  * because I think it's so trivial... a function call
    207  * would be pure overhead. As an example, a routine
    208  * to set the char code and attribute at position x,y:
    209  * (assumed the value returned by RZ3Init was stored
    210  *  into "DispMem", the actual MonDef struct * is hold
    211  *  in "MDef")
    212  *
    213  * void SetChar(unsigned char chr, unsigned char attr,
    214  *              unsigned short x, unsigned short y) {
    215  *
    216  *    unsigned struct MonDef * md = MDef;
    217  *    unsigned char * c = DispMem + x*4 + y*md->TX*4;
    218  *
    219  *    *c++ = chr;
    220  *    *c   = attr;
    221  *
    222  * }
    223  *
    224  * In gfx-mode, the memory organisation is rather simple,
    225  * 1 byte per pixel in 256-color mode, one pixel after
    226  * each other, line by line.
    227  *
    228  * When 16-bits per pixel are used, each two bytes represent
    229  * one pixel. The meaning of the bits is the following:
    230  *
    231  * Bit       15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
    232  * Component g2 g1 g0 b4 b3 b2 b1 b0 r4 r3 r2 r1 r0 g5 g4 g3
    233  *
    234  * Please note that the memory layout in gfx-mode depends
    235  * on the logical screen-size, panning does only affect
    236  * the appearance of the physical screen.
    237  *
    238  * Currently, RZ3Init() disables the Retina Z3 VBLANK IRQ,
    239  * but beware: When running the Retina WB-Emu under
    240  * AmigaDOS, the VBLANK IRQ is ENABLED...
    241  *
    242  */
    243 
    244 	void RZ3LoadPalette(unsigned char * pal, unsigned char firstcol, unsigned char colors);
    245 
    246 /*
    247  * Loads the palette-registers. "pal" points to an array of unsigned char
    248  * triplets, for the red, green and blue component. "firstcol" determines the
    249  * number of the first palette-register to load (256 available). "colors" is
    250  * the number of colors you want to put in the palette registers.
    251  */
    252 
    253 	void RZ3SetPalette(unsigned char colornum, unsigned char red, unsigned char green, unsigned char blue);
    254 
    255 /*
    256  * Allows you to set a single color in the palette, "colornum" is the number
    257  * of the palette entry (256 available), "red", "green" and "blue" are the
    258  * three components.
    259  */
    260 
    261 	void RZ3SetCursorPos(unsigned short pos);
    262 
    263 /*
    264  * This routine sets the text-mode hardware-cursor position to the screen
    265  * location pos. pos can be calculated as (x + y * md->TY).
    266  * Text-mode only!
    267  */
    268 
    269 	void RZ3AlphaCopy (unsigned short xs, unsigned short ys,
    270                       unsigned short xd, unsigned short yd,
    271                       unsigned short  w, unsigned short  h  );
    272 
    273 /*
    274  * This Routine utilizes the blitter to perform fast copies
    275  * in the text-display. The paramters are:
    276  *  xs - source x-coordinate
    277  *  ys - source y-coordinate
    278  *  xd - destination x-coordinate
    279  *  yd - destination y-coordinate
    280  *  w  - the width of the area to copy
    281  *  h  - the height of the area to copy
    282  * All coordinates are in characters. RZ3AlphaCopy does not
    283  * check for boundaries - you've got to make sure that the
    284  * parameters have sensible values. Text-mode only!
    285  */
    286 
    287 
    288 	void RZ3AlphaErase (unsigned short xd, unsigned short yd,
    289                        unsigned short  w, unsigned short  h );
    290 
    291 /*
    292  * RZ3AlphaErase utilizes the blitter to erase portions of
    293  * the text-display. The parameters are:
    294  *  xd - destination x-coordinate
    295  *  yd - destination y-coordinate
    296  *  w  - the width of the area to erase
    297  *  h  - the height of the area to erase
    298  * All coordinates are in characters. RZ3AlphaCopy does not
    299  * check for boundaries - you've got to make sure that the
    300  * parameters have sensible values. Text-mode only!
    301  *
    302  * Since the blitter is unable to use a mask-pattern and a
    303  * certain fill-value at the same time, this routine uses
    304  * a simple trick: RZ3Init() clears a memory area twice as
    305  * large as the text-display needs, and RZ3AlphaErase then
    306  * simply uses RZ3AlphaCopy to copy the desired area from
    307  * the empty text-screen to the actually displayed screen.
    308  */
    309 
    310 	void RZ3BitBlit (struct grf_bitblt * gbb );
    311 
    312 /*
    313  * RZ3BitBlit utilizes the blitter to perform one of 16
    314  * available logical operations on the display memory,
    315  * among them ordinary fill- and copy operations.
    316  * The only parameter is a pointer to a struct grf_bitblt:
    317  *
    318  * struct grf_bitblt {
    319  *   unsigned short op;              see above definitions of GRFBBOPxxx
    320  *   unsigned short src_x, src_y;    upper left corner of source-region
    321  *   unsigned short dst_x, dst_y;    upper left corner of dest-region
    322  *   unsigned short w, h;            width, height of region
    323  *   unsigned short mask;            bitmask to apply
    324  * };
    325  *
    326  * All coordinates are in pixels. RZ3BitBlit does not
    327  * check for boundaries - you've got to make sure that the
    328  * parameters have sensible values. 8 bit gfx-mode only!
    329  *
    330  * The blitter has a lot more capabilities, which aren't
    331  * currently used by theese routines, among them color-expanded
    332  * and text-blits, which can speed up GUIs like X11 a lot.
    333  * If you've got any idea how to make use of them within
    334  * your routines, contact me, and I'll implement the necessary
    335  * blit-operations.
    336  */
    337 
    338 	void RZ3BitBlit16( struct grf_bitblt * gbb );
    339 
    340 /* Does the same as RZ3BitBlit(), but for 16-bit screens */
    341 
    342 	void RZ3SetPanning(unsigned short xoff, unsigned short yoff);
    343 
    344 /*
    345  * Moves the logical coordinate (xoff, yoff) to the upper left corner
    346  * of your screen. Of course, you shouldn't specify excess values that would
    347  * show garbage in the lower right area of your screen... SetPanning()
    348  * does NOT check for boundaries.
    349  * Please read the documentation of RZ3SetHWCloc, too.
    350  */
    351 
    352 	void RZ3SetupHWC (unsigned char col1, unsigned col2,
    353                      unsigned char hsx, unsigned char hsy,
    354                      const unsigned long * data);
    355 
    356 /*
    357  * Initializes and switches on the hardware-cursor sprite.
    358  * The parameters are:
    359  * col1     - the first color
    360  * col2     - the second color
    361  * hsx      - hot-spot location offset x
    362  * hsy      - hot-spot location offset y
    363  * data     - a pointer to the bitmap data to be used for the sprite
    364  *
    365  * The organization of the data is - as always with MSDOS related
    366  * products - rather strange: The first and the second long-word
    367  * represent bitplane0 for the first 64 pixels. The following two
    368  * long-words represent bitplane1 for the first 64 pixels. But
    369  * the long-words are organized in Intel-fashion, beginning with
    370  * the least significant byte, ending with the most significant
    371  * one. The most significant bit of each byte is the leftmost,
    372  * as one would expect it. Now the weird color-assignments:
    373  *
    374  * bitplane0 bitplane1       result
    375  *     0         0            col2
    376  *     0         1            col1
    377  *     1         0          transparent
    378  *     1         1     background-color XOR 0xff
    379  *
    380  * The size of the data has to be 64*64*2/8 = 1024 byte,
    381  * obviously, the size of the sprite is 64x64 pixels.
    382  */
    383 
    384 
    385 	void RZ3DisableHWC (void);
    386 
    387 /* simply disables the hardware-cursor sprite */
    388 
    389 	void RZ3SetHWCloc (unsigned short x, unsigned short y);
    390 
    391 /*
    392  * sets the location of the hardwar-cursor sprite to x,y
    393  * relative to the logical screen beginning.
    394  * IMPORTANT: If you use RZ3SetHWCloc() to set the position
    395  * of the hardware-cursor sprite, all necessary panning is
    396  * done automatically - you can treat the display without
    397  * even knowing about the physical screen size that is
    398  * displayed.
    399  */
    400 
    401 #endif
    402 
    403 #endif /* RZ3_BSD_h */
    404 
    405 
    406 /* -------------- START OF CODE -------------- */
    407 
    408 /* read VGA register */
    409 #define vgar(ba, reg) (*(((volatile unsigned char *)ba)+reg))
    410 
    411 /* write VGA register */
    412 #define vgaw(ba, reg, val) \
    413 	*(((volatile unsigned char *)ba)+reg) = val
    414 
    415 /*
    416  * defines for the used register addresses (mw)
    417  *
    418  * NOTE: there are some registers that have different addresses when
    419  *       in mono or color mode. We only support color mode, and thus
    420  *       some addresses won't work in mono-mode!
    421  */
    422 
    423 /* General Registers: */
    424 #define GREG_STATUS0_R		0x03C2
    425 #define GREG_STATUS1_R		0x03DA
    426 #define GREG_MISC_OUTPUT_R	0x03CC
    427 #define GREG_MISC_OUTPUT_W	0x03C2
    428 #define GREG_FEATURE_CONTROL_R	0x03CA
    429 #define GREG_FEATURE_CONTROL_W	0x03DA
    430 #define GREG_POS		0x0102
    431 
    432 /* Attribute Controller: */
    433 #define ACT_ADDRESS		0x03C0
    434 #define ACT_ADDRESS_R		0x03C0
    435 #define ACT_ADDRESS_W		0x03C0
    436 #define ACT_ADDRESS_RESET	0x03DA
    437 #define ACT_ID_PALETTE0		0x00
    438 #define ACT_ID_PALETTE1		0x01
    439 #define ACT_ID_PALETTE2		0x02
    440 #define ACT_ID_PALETTE3		0x03
    441 #define ACT_ID_PALETTE4		0x04
    442 #define ACT_ID_PALETTE5		0x05
    443 #define ACT_ID_PALETTE6		0x06
    444 #define ACT_ID_PALETTE7		0x07
    445 #define ACT_ID_PALETTE8		0x08
    446 #define ACT_ID_PALETTE9		0x09
    447 #define ACT_ID_PALETTE10	0x0A
    448 #define ACT_ID_PALETTE11	0x0B
    449 #define ACT_ID_PALETTE12	0x0C
    450 #define ACT_ID_PALETTE13	0x0D
    451 #define ACT_ID_PALETTE14	0x0E
    452 #define ACT_ID_PALETTE15	0x0F
    453 #define ACT_ID_ATTR_MODE_CNTL	0x10
    454 #define ACT_ID_OVERSCAN_COLOR	0x11
    455 #define ACT_ID_COLOR_PLANE_ENA	0x12
    456 #define ACT_ID_HOR_PEL_PANNING	0x13
    457 #define ACT_ID_COLOR_SELECT	0x14
    458 
    459 /* Graphics Controller: */
    460 #define GCT_ADDRESS		0x03CE
    461 #define GCT_ADDRESS_R		0x03CE
    462 #define GCT_ADDRESS_W		0x03CF
    463 #define GCT_ID_SET_RESET	0x00
    464 #define GCT_ID_ENABLE_SET_RESET	0x01
    465 #define GCT_ID_COLOR_COMPARE	0x02
    466 #define GCT_ID_DATA_ROTATE	0x03
    467 #define GCT_ID_READ_MAP_SELECT	0x04
    468 #define GCT_ID_GRAPHICS_MODE	0x05
    469 #define GCT_ID_MISC		0x06
    470 #define GCT_ID_COLOR_XCARE	0x07
    471 #define GCT_ID_BITMASK		0x08
    472 
    473 /* Sequencer: */
    474 #define SEQ_ADDRESS		0x03C4
    475 #define SEQ_ADDRESS_R		0x03C4
    476 #define SEQ_ADDRESS_W		0x03C5
    477 #define SEQ_ID_RESET		0x00
    478 #define SEQ_ID_CLOCKING_MODE	0x01
    479 #define SEQ_ID_MAP_MASK		0x02
    480 #define SEQ_ID_CHAR_MAP_SELECT	0x03
    481 #define SEQ_ID_MEMORY_MODE	0x04
    482 #define SEQ_ID_EXTENDED_ENABLE	0x05	/* down from here, all seq registers are NCR extensions */
    483 #define SEQ_ID_UNKNOWN1         0x06
    484 #define SEQ_ID_UNKNOWN2         0x07
    485 #define SEQ_ID_CHIP_ID		0x08
    486 #define SEQ_ID_UNKNOWN3         0x09
    487 #define SEQ_ID_CURSOR_COLOR1	0x0A
    488 #define SEQ_ID_CURSOR_COLOR0	0x0B
    489 #define SEQ_ID_CURSOR_CONTROL	0x0C
    490 #define SEQ_ID_CURSOR_X_LOC_HI	0x0D
    491 #define SEQ_ID_CURSOR_X_LOC_LO	0x0E
    492 #define SEQ_ID_CURSOR_Y_LOC_HI	0x0F
    493 #define SEQ_ID_CURSOR_Y_LOC_LO	0x10
    494 #define SEQ_ID_CURSOR_X_INDEX	0x11
    495 #define SEQ_ID_CURSOR_Y_INDEX	0x12
    496 #define SEQ_ID_CURSOR_STORE_HI	0x13	/* manual still wrong here.. argl! */
    497 #define SEQ_ID_CURSOR_STORE_LO	0x14	/* downto 0x16 */
    498 #define SEQ_ID_CURSOR_ST_OFF_HI	0x15
    499 #define SEQ_ID_CURSOR_ST_OFF_LO	0x16
    500 #define SEQ_ID_CURSOR_PIXELMASK	0x17
    501 #define SEQ_ID_PRIM_HOST_OFF_HI	0x18
    502 #define SEQ_ID_PRIM_HOST_OFF_LO	0x19
    503 #define SEQ_ID_LINEAR_0		0x1A
    504 #define SEQ_ID_LINEAR_1		0x1B
    505 #define SEQ_ID_SEC_HOST_OFF_HI	0x1C
    506 #define SEQ_ID_SEC_HOST_OFF_LO	0x1D
    507 #define SEQ_ID_EXTENDED_MEM_ENA	0x1E
    508 #define SEQ_ID_EXT_CLOCK_MODE	0x1F
    509 #define SEQ_ID_EXT_VIDEO_ADDR	0x20
    510 #define SEQ_ID_EXT_PIXEL_CNTL	0x21
    511 #define SEQ_ID_BUS_WIDTH_FEEDB	0x22
    512 #define SEQ_ID_PERF_SELECT	0x23
    513 #define SEQ_ID_COLOR_EXP_WFG	0x24
    514 #define SEQ_ID_COLOR_EXP_WBG	0x25
    515 #define SEQ_ID_EXT_RW_CONTROL	0x26
    516 #define SEQ_ID_MISC_FEATURE_SEL	0x27
    517 #define SEQ_ID_COLOR_KEY_CNTL	0x28
    518 #define SEQ_ID_COLOR_KEY_MATCH0	0x29
    519 #define SEQ_ID_COLOR_KEY_MATCH1 0x2A
    520 #define SEQ_ID_COLOR_KEY_MATCH2 0x2B
    521 #define SEQ_ID_UNKNOWN6         0x2C
    522 #define SEQ_ID_CRC_CONTROL	0x2D
    523 #define SEQ_ID_CRC_DATA_LOW	0x2E
    524 #define SEQ_ID_CRC_DATA_HIGH	0x2F
    525 #define SEQ_ID_MEMORY_MAP_CNTL	0x30
    526 #define SEQ_ID_ACM_APERTURE_1	0x31
    527 #define SEQ_ID_ACM_APERTURE_2	0x32
    528 #define SEQ_ID_ACM_APERTURE_3	0x33
    529 #define SEQ_ID_BIOS_UTILITY_0	0x3e
    530 #define SEQ_ID_BIOS_UTILITY_1	0x3f
    531 
    532 /* CRT Controller: */
    533 #define CRT_ADDRESS		0x03D4
    534 #define CRT_ADDRESS_R		0x03D5
    535 #define CRT_ADDRESS_W		0x03D5
    536 #define CRT_ID_HOR_TOTAL	0x00
    537 #define CRT_ID_HOR_DISP_ENA_END	0x01
    538 #define CRT_ID_START_HOR_BLANK	0x02
    539 #define CRT_ID_END_HOR_BLANK	0x03
    540 #define CRT_ID_START_HOR_RETR	0x04
    541 #define CRT_ID_END_HOR_RETR	0x05
    542 #define CRT_ID_VER_TOTAL	0x06
    543 #define CRT_ID_OVERFLOW		0x07
    544 #define CRT_ID_PRESET_ROW_SCAN	0x08
    545 #define CRT_ID_MAX_SCAN_LINE	0x09
    546 #define CRT_ID_CURSOR_START	0x0A
    547 #define CRT_ID_CURSOR_END	0x0B
    548 #define CRT_ID_START_ADDR_HIGH	0x0C
    549 #define CRT_ID_START_ADDR_LOW	0x0D
    550 #define CRT_ID_CURSOR_LOC_HIGH	0x0E
    551 #define CRT_ID_CURSOR_LOC_LOW	0x0F
    552 #define CRT_ID_START_VER_RETR	0x10
    553 #define CRT_ID_END_VER_RETR	0x11
    554 #define CRT_ID_VER_DISP_ENA_END	0x12
    555 #define CRT_ID_OFFSET		0x13
    556 #define CRT_ID_UNDERLINE_LOC	0x14
    557 #define CRT_ID_START_VER_BLANK	0x15
    558 #define CRT_ID_END_VER_BLANK	0x16
    559 #define CRT_ID_MODE_CONTROL	0x17
    560 #define CRT_ID_LINE_COMPARE	0x18
    561 #define CRT_ID_UNKNOWN1         0x19	/* are these register really void ? */
    562 #define CRT_ID_UNKNOWN2         0x1A
    563 #define CRT_ID_UNKNOWN3         0x1B
    564 #define CRT_ID_UNKNOWN4         0x1C
    565 #define CRT_ID_UNKNOWN5         0x1D
    566 #define CRT_ID_UNKNOWN6         0x1E
    567 #define CRT_ID_UNKNOWN7         0x1F
    568 #define CRT_ID_UNKNOWN8         0x20
    569 #define CRT_ID_UNKNOWN9         0x21
    570 #define CRT_ID_UNKNOWN10      	0x22
    571 #define CRT_ID_UNKNOWN11      	0x23
    572 #define CRT_ID_UNKNOWN12      	0x24
    573 #define CRT_ID_UNKNOWN13      	0x25
    574 #define CRT_ID_UNKNOWN14      	0x26
    575 #define CRT_ID_UNKNOWN15      	0x27
    576 #define CRT_ID_UNKNOWN16      	0x28
    577 #define CRT_ID_UNKNOWN17      	0x29
    578 #define CRT_ID_UNKNOWN18      	0x2A
    579 #define CRT_ID_UNKNOWN19      	0x2B
    580 #define CRT_ID_UNKNOWN20      	0x2C
    581 #define CRT_ID_UNKNOWN21      	0x2D
    582 #define CRT_ID_UNKNOWN22      	0x2E
    583 #define CRT_ID_UNKNOWN23      	0x2F
    584 #define CRT_ID_EXT_HOR_TIMING1	0x30	/* down from here, all crt registers are NCR extensions */
    585 #define CRT_ID_EXT_START_ADDR	0x31
    586 #define CRT_ID_EXT_HOR_TIMING2	0x32
    587 #define CRT_ID_EXT_VER_TIMING	0x33
    588 #define CRT_ID_MONITOR_POWER	0x34
    589 
    590 /* PLL chip  (clock frequency synthesizer) I'm guessing here... */
    591 #define PLL_ADDRESS		0x83c8
    592 #define PLL_ADDRESS_W		0x83c9
    593 
    594 
    595 /* Video DAC */
    596 #define VDAC_ADDRESS		0x03c8
    597 #define VDAC_ADDRESS_W		0x03c8
    598 #define VDAC_ADDRESS_R		0x03c7
    599 #define VDAC_STATE		0x03c7
    600 #define VDAC_DATA		0x03c9
    601 #define VDAC_MASK		0x03c6
    602 
    603 
    604 /* Accelerator Control Menu (memory mapped registers, includes blitter) */
    605 #define ACM_PRIMARY_OFFSET	0x00
    606 #define ACM_SECONDARY_OFFSET	0x04
    607 #define ACM_MODE_CONTROL	0x08
    608 #define ACM_CURSOR_POSITION	0x0c
    609 #define ACM_START_STATUS	0x30
    610 #define ACM_CONTROL		0x34
    611 #define ACM_RASTEROP_ROTATION	0x38
    612 #define ACM_BITMAP_DIMENSION	0x3c
    613 #define ACM_DESTINATION		0x40
    614 #define ACM_SOURCE		0x44
    615 #define ACM_PATTERN		0x48
    616 #define ACM_FOREGROUND		0x4c
    617 #define ACM_BACKGROUND		0x50
    618 
    619 
    620 #define WGfx(ba, idx, val) \
    621 	do { vgaw(ba, GCT_ADDRESS, idx); vgaw(ba, GCT_ADDRESS_W , val); } while (0)
    622 
    623 #define WSeq(ba, idx, val) \
    624 	do { vgaw(ba, SEQ_ADDRESS, idx); vgaw(ba, SEQ_ADDRESS_W , val); } while (0)
    625 
    626 #define WCrt(ba, idx, val) \
    627 	do { vgaw(ba, CRT_ADDRESS, idx); vgaw(ba, CRT_ADDRESS_W , val); } while (0)
    628 
    629 #define WAttr(ba, idx, val) \
    630 	do { vgaw(ba, ACT_ADDRESS, idx); vgaw(ba, ACT_ADDRESS_W, val); } while (0)
    631 
    632 #define Map(m) \
    633 	do { WGfx(ba, GCT_ID_READ_MAP_SELECT, m & 3 ); WSeq(ba, SEQ_ID_MAP_MASK, (1 << (m & 3))); } while (0)
    634 
    635 #define WPLL(ba, idx, val) \
    636 	do { 	vgaw(ba, PLL_ADDRESS, idx);\
    637 	vgaw(ba, PLL_ADDRESS_W, (val & 0xff));\
    638 	vgaw(ba, PLL_ADDRESS_W, (val >> 8)); } while (0)
    639 
    640 
    641 static inline unsigned char RAttr(volatile void * ba, short idx) {
    642 	vgaw (ba, ACT_ADDRESS, idx);
    643 	return vgar (ba, ACT_ADDRESS_R);
    644 }
    645 
    646 static inline unsigned char RSeq(volatile void * ba, short idx) {
    647 	vgaw (ba, SEQ_ADDRESS, idx);
    648 	return vgar (ba, SEQ_ADDRESS_R);
    649 }
    650 
    651 static inline unsigned char RCrt(volatile void * ba, short idx) {
    652 	vgaw (ba, CRT_ADDRESS, idx);
    653 	return vgar (ba, CRT_ADDRESS_R);
    654 }
    655 
    656 static inline unsigned char RGfx(volatile void * ba, short idx) {
    657 	vgaw(ba, GCT_ADDRESS, idx);
    658 	return vgar (ba, GCT_ADDRESS_R);
    659 }
    660 
    661 void RZ3DisableHWC __P((struct grf_softc *gp));
    662 void RZ3SetupHWC __P((struct grf_softc *gp, unsigned char col1, unsigned int col2, unsigned char hsx, unsigned char hsy, const long unsigned int *data));
    663 void RZ3AlphaErase __P((struct grf_softc *gp, short unsigned int xd, short unsigned int yd, short unsigned int w, short unsigned int h));
    664 void RZ3AlphaCopy __P((struct grf_softc *gp, short unsigned int xs, short unsigned int ys, short unsigned int xd, short unsigned int yd, short unsigned int w, short unsigned int h));
    665 void RZ3BitBlit __P((struct grf_softc *gp, struct grf_bitblt *gbb));
    666 void RZ3BitBlit16 __P((struct grf_softc *gp, struct grf_bitblt *gbb));
    667 void RZ3SetCursorPos __P((struct grf_softc *gp, short unsigned int pos));
    668 void RZ3LoadPalette __P((struct grf_softc *gp, unsigned char *pal, unsigned char firstcol, unsigned char colors));
    669 void RZ3SetPalette __P((struct grf_softc *gp, unsigned char colornum, unsigned char red, unsigned char green, unsigned char blue));
    670 void RZ3SetPanning __P((struct grf_softc *gp, short unsigned int xoff, short unsigned int yoff));
    671 void RZ3SetHWCloc __P((struct grf_softc *gp, short unsigned int x, short unsigned int y));
    672 int rh_mode __P((register struct grf_softc *gp, int cmd, void *arg, int a2, int a3));
    673 int rh_ioctl __P((register struct grf_softc *gp, int cmd, void *data));
    674 int rh_getcmap __P((struct grf_softc *gfp, struct grf_colormap *cmap));
    675 int rh_putcmap __P((struct grf_softc *gfp, struct grf_colormap *cmap));
    676 int rh_getspritepos __P((struct grf_softc *gp, struct grf_position *pos));
    677 int rh_setspritepos __P((struct grf_softc *gp, struct grf_position *pos));
    678 int rh_getspriteinfo __P((struct grf_softc *gp, struct grf_spriteinfo *info));
    679 int rh_setspriteinfo __P((struct grf_softc *gp, struct grf_spriteinfo *info));
    680 int rh_getspritemax __P((struct grf_softc *gp, struct grf_position *pos));
    681 int rh_bitblt __P((struct grf_softc *gp, struct grf_bitblt *bb));
    682 
    683 
    684 struct ite_softc;
    685 void rh_init __P((struct ite_softc *));
    686 void rh_cursor __P((struct ite_softc *, int));
    687 void rh_deinit __P((struct ite_softc *));
    688 void rh_putc __P((struct ite_softc *, int, int, int, int));
    689 void rh_clear __P((struct ite_softc *, int, int, int, int));
    690 void rh_scroll __P((struct ite_softc *, int, int, int, int));
    691 
    692 #endif /* _GRF_RHREG_H */
    693