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grf_rhreg.h revision 1.3
      1 /*	$NetBSD: grf_rhreg.h,v 1.3 1994/12/01 17:25:07 chopps Exp $	*/
      2 
      3 #ifndef _GRF_RHREG_H
      4 #define _GRF_RHREG_H
      5 
      6 /*
      7  * Written & Copyright by Lutz Vieweg. As for missing comments: see
      8  * grf_rt.*
      9  *
     10  * Lutz provided these sources in C++, I tried to keep as much of it when
     11  * converting to C. -mw-
     12  */
     13 
     14 #define EMPTY_ALPHA 0x2010 /* this is the char and the attribute
     15                               that AlphaErase will fill into the
     16                               text-screen  */
     17 
     18 #define MEMCLK 65000000  /* this is the memory clock value, you shouldn't
     19                             set it to less than 65000000, higher values may
     20                             speed up blits a little bit, if you raise this
     21                             value too much, some trash will appear on your
     22                             screen. */
     23 
     24 #define MEMSIZE 4        /* Set this to 1 or 4 (MB), according to the
     25                             RAM on your Retina BLT Z3 board */
     26 /*
     27  * The following definitions are places in the frame-buffer memory
     28  * which are used for special purposes. While the displayed screen
     29  * itself is always beginning at the start of the frame-buffer
     30  * memory, the following special places are located at the end
     31  * of the memory to keep free as much space as possible for the
     32  * screen - the user might want to use monitor-definitions with
     33  * huge logical dimensions (e.g. 2048x2000 ?). This way of defining
     34  * special locations in the frame-buffer memory is far from being
     35  * elegant - you may want to use you own, real memory-management...
     36  * but remember that some routines in RZ3_BSD.cc REALLY NEED those
     37  * memory locations to function properly, so if you manage the
     38  * frame-buffer memory on your own, make sure to change those
     39  * definitions appropriately.
     40  */
     41 
     42 /* reserve some space for one pattern line */
     43 #define PAT_MEM_SIZE 16*3
     44 #define PAT_MEM_OFF  (MEMSIZE*1024*1024 - PAT_MEM_SIZE)
     45 
     46 /* reserve some space for the hardware cursor (up to 64x64 pixels) */
     47 #define HWC_MEM_SIZE 1024
     48 #define HWC_MEM_OFF  ((PAT_MEM_OFF - HWC_MEM_SIZE) & 0xffffff00)
     49 
     50 /*
     51  * The following structure is passed to RZ3Init() and holds the
     52  * monitor-definition. You may either use one of the ready-made
     53  * definitions in RZ3_monitors.cc or you can define them on your
     54  * own, take a look at RZ3_monitors.cc for more information.
     55  */
     56 struct MonDef {
     57 
     58 	/* first the general monitor characteristics */
     59 
     60 	unsigned long  FQ;
     61 	unsigned char  FLG;
     62 
     63 	unsigned short MW;  /* physical screen width in pixels    */
     64 	                    /* has to be at least a multiple of 8 */
     65 	unsigned short MH;  /* physical screen height in pixels   */
     66 
     67 	unsigned short HBS;
     68 	unsigned short HSS;
     69 	unsigned short HSE;
     70 	unsigned short HBE;
     71 	unsigned short HT;
     72 	unsigned short VBS;
     73 	unsigned short VSS;
     74 	unsigned short VSE;
     75 	unsigned short VBE;
     76 	unsigned short VT;
     77 
     78 	unsigned short DEP;  /* Color-depth, 4 enables text-mode  */
     79 	                     /* 8 enables 256-color graphics-mode, */
     80 	                     /* 16 and 24bit gfx not supported yet */
     81 
     82 	unsigned char * PAL; /* points to 16*3 byte RGB-palette data   */
     83 	                     /* use LoadPalette() to set colors 0..255 */
     84 	                     /* in 256-color-gfx mode */
     85 
     86 	/*
     87 	 * all following entries are font-specific in
     88 	 * text-mode. Make sure your monitor
     89 	 * parameters are calculated for the
     90 	 * appropriate font width and height!
     91 	 */
     92 
     93 	unsigned short  TX;     /* Text-mode (DEP=4):          */
     94 	                        /* screen-width  in characters */
     95 
     96 	                        /* Gfx-mode (DEP > 4)          */
     97 	                        /* "logical" screen-width,     */
     98 	                        /* use values > MW to allow    */
     99 	                        /* hardware-panning            */
    100 
    101 	unsigned short  TY;     /* Text-mode:                  */
    102 	                        /* screen-height in characters */
    103 
    104 	                        /* Gfx-mode: "logical" screen  */
    105 	                        /* height for panning          */
    106 
    107 	/* the following values are currently unused for gfx-mode */
    108 
    109 	unsigned short  XY;     /* TX*TY (speeds up some calcs.) */
    110 
    111 	unsigned short  FX;     /* font-width (valid values: 4,7-16) */
    112 	unsigned short  FY;     /* font-height (valid range: 1-32) */
    113 	unsigned char * FData;  /* pointer to the font-data */
    114 
    115 	/*
    116 	 * The font data is simply an array of bytes defining
    117 	 * the chars in ascending order, line by line. If your
    118 	 * font is wider than 8 pixel, FData has to be an
    119 	 * array of words.
    120 	 */
    121 
    122 	unsigned short  FLo;    /* lowest character defined */
    123 	unsigned short  FHi;    /* highest char. defined */
    124 
    125 };
    126 
    127 
    128 /*
    129  * The following are the prototypes for the low-level
    130  * routines you may want to call.
    131  */
    132 
    133 #if 0
    134 
    135 #ifdef __GNUG__
    136 
    137 /* The prototypes for C++, prototypes for C (with explanations) below */
    138 
    139 "C" unsigned char * RZ3Init         (volatile void * HardWareAdress, struct MonDef * md);
    140 "C" void            RZ3SetCursorPos (unsigned short pos);
    141 "C" void            RZ3AlphaErase   (unsigned short xd, unsigned short yd,
    142                                             unsigned short  w, unsigned short  h );
    143 "C" void            RZ3AlphaCopy    (unsigned short xs, unsigned short ys,
    144                                             unsigned short xd, unsigned short yd,
    145                                             unsigned short  w, unsigned short  h  );
    146 "C" void            RZ3BitBlit      (struct grf_bitblt * gbb );
    147 "C" void            RZ3BitBlit16    (struct grf_bitblt * gbb );
    148 "C" void            RZ3LoadPalette  (unsigned char * pal, unsigned char firstcol, unsigned char colors);
    149 "C" void            RZ3SetPalette   (unsigned char colornum, unsigned char red, unsigned char green, unsigned char blue);
    150 "C" void            RZ3SetPanning   (unsigned short xoff, unsigned short yoff);
    151 "C" void            RZ3SetupHWC     (unsigned char col1, unsigned col2,
    152                                             unsigned char hsx, unsigned char hsy,
    153                                             const unsigned long * data);
    154 "C" void            RZ3DisableHWC   (void);
    155 "C" void            RZ3SetHWCloc    (unsigned short x, unsigned short y);
    156 #else
    157 
    158 /* The prototypes for C */
    159 /* with a little explanation */
    160 
    161 	unsigned char * RZ3Init(volatile void * BoardAdress, struct MonDef * md);
    162 
    163 /*
    164  * This routine initialises the Retina Z3 hardware, opens a
    165  * text- or gfx-mode screen, depending on the the value of
    166  * MonDef.DEP, and sets the cursor to position 0.
    167  * It takes as arguments a pointer to the hardware-base
    168  * address as it is denoted in the DevConf structure
    169  * of the AmigaDOS, and a pointer to a struct MonDef
    170  * which describes the screen-mode parameters.
    171  *
    172  * The routine returns 0 if it was unable to open the screen,
    173  * or an unsigned char * to the display memory when it
    174  * succeeded.
    175  *
    176  * The organisation of the display memory in text-mode is a
    177  * little strange (Intel-typically...) :
    178  *
    179  * Byte  00    01    02    03    04     05    06   etc.
    180  *     Char0  Attr0  --    --   Char1 Attr1   --   etc.
    181  *
    182  * You may set a character and its associated attribute byte
    183  * with a single word-access, or you may perform to byte writes
    184  * for the char and attribute. Each 2. word has no meaning,
    185  * and writes to theese locations are ignored.
    186  *
    187  * The attribute byte for each character has the following
    188  * structure:
    189  *
    190  * Bit  7     6     5     4     3     2     1     0
    191  *    BLINK BACK2 BACK1 BACK0 FORE3 FORE2 FORE1 FORE0
    192  *
    193  * Were FORE is the foreground-color index (0-15) and
    194  * BACK is the background color index (0-7). BLINK
    195  * enables blinking for the associated character.
    196  * The higher 8 colors in the standard palette are
    197  * lighter than the lower 8, so you may see FORE3 as
    198  * an intensity bit. If FORE == 1 or FORE == 9 and
    199  * BACK == 0 the character is underlined. Since I don't
    200  * think this looks good, it will probably change in a
    201  * future release.
    202  *
    203  * There's no routine "SetChar" or "SetAttr" provided,
    204  * because I think it's so trivial... a function call
    205  * would be pure overhead. As an example, a routine
    206  * to set the char code and attribute at position x,y:
    207  * (assumed the value returned by RZ3Init was stored
    208  *  into "DispMem", the actual MonDef struct * is hold
    209  *  in "MDef")
    210  *
    211  * void SetChar(unsigned char chr, unsigned char attr,
    212  *              unsigned short x, unsigned short y) {
    213  *
    214  *    unsigned struct MonDef * md = MDef;
    215  *    unsigned char * c = DispMem + x*4 + y*md->TX*4;
    216  *
    217  *    *c++ = chr;
    218  *    *c   = attr;
    219  *
    220  * }
    221  *
    222  * In gfx-mode, the memory organisation is rather simple,
    223  * 1 byte per pixel in 256-color mode, one pixel after
    224  * each other, line by line.
    225  *
    226  * When 16-bits per pixel are used, each two bytes represent
    227  * one pixel. The meaning of the bits is the following:
    228  *
    229  * Bit       15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
    230  * Component g2 g1 g0 b4 b3 b2 b1 b0 r4 r3 r2 r1 r0 g5 g4 g3
    231  *
    232  * Please note that the memory layout in gfx-mode depends
    233  * on the logical screen-size, panning does only affect
    234  * the appearance of the physical screen.
    235  *
    236  * Currently, RZ3Init() disables the Retina Z3 VBLANK IRQ,
    237  * but beware: When running the Retina WB-Emu under
    238  * AmigaDOS, the VBLANK IRQ is ENABLED...
    239  *
    240  */
    241 
    242 	void RZ3LoadPalette(unsigned char * pal, unsigned char firstcol, unsigned char colors);
    243 
    244 /*
    245  * Loads the palette-registers. "pal" points to an array of unsigned char
    246  * triplets, for the red, green and blue component. "firstcol" determines the
    247  * number of the first palette-register to load (256 available). "colors" is
    248  * the number of colors you want to put in the palette registers.
    249  */
    250 
    251 	void RZ3SetPalette(unsigned char colornum, unsigned char red, unsigned char green, unsigned char blue);
    252 
    253 /*
    254  * Allows you to set a single color in the palette, "colornum" is the number
    255  * of the palette entry (256 available), "red", "green" and "blue" are the
    256  * three components.
    257  */
    258 
    259 	void RZ3SetCursorPos(unsigned short pos);
    260 
    261 /*
    262  * This routine sets the text-mode hardware-cursor position to the screen
    263  * location pos. pos can be calculated as (x + y * md->TY).
    264  * Text-mode only!
    265  */
    266 
    267 	void RZ3AlphaCopy (unsigned short xs, unsigned short ys,
    268                       unsigned short xd, unsigned short yd,
    269                       unsigned short  w, unsigned short  h  );
    270 
    271 /*
    272  * This Routine utilizes the blitter to perform fast copies
    273  * in the text-display. The paramters are:
    274  *  xs - source x-coordinate
    275  *  ys - source y-coordinate
    276  *  xd - destination x-coordinate
    277  *  yd - destination y-coordinate
    278  *  w  - the width of the area to copy
    279  *  h  - the height of the area to copy
    280  * All coordinates are in characters. RZ3AlphaCopy does not
    281  * check for boundaries - you've got to make sure that the
    282  * parameters have sensible values. Text-mode only!
    283  */
    284 
    285 
    286 	void RZ3AlphaErase (unsigned short xd, unsigned short yd,
    287                        unsigned short  w, unsigned short  h );
    288 
    289 /*
    290  * RZ3AlphaErase utilizes the blitter to erase portions of
    291  * the text-display. The parameters are:
    292  *  xd - destination x-coordinate
    293  *  yd - destination y-coordinate
    294  *  w  - the width of the area to erase
    295  *  h  - the height of the area to erase
    296  * All coordinates are in characters. RZ3AlphaCopy does not
    297  * check for boundaries - you've got to make sure that the
    298  * parameters have sensible values. Text-mode only!
    299  *
    300  * Since the blitter is unable to use a mask-pattern and a
    301  * certain fill-value at the same time, this routine uses
    302  * a simple trick: RZ3Init() clears a memory area twice as
    303  * large as the text-display needs, and RZ3AlphaErase then
    304  * simply uses RZ3AlphaCopy to copy the desired area from
    305  * the empty text-screen to the actually displayed screen.
    306  */
    307 
    308 	void RZ3BitBlit (struct grf_bitblt * gbb );
    309 
    310 /*
    311  * RZ3BitBlit utilizes the blitter to perform one of 16
    312  * available logical operations on the display memory,
    313  * among them ordinary fill- and copy operations.
    314  * The only parameter is a pointer to a struct grf_bitblt:
    315  *
    316  * struct grf_bitblt {
    317  *   unsigned short op;              see above definitions of GRFBBOPxxx
    318  *   unsigned short src_x, src_y;    upper left corner of source-region
    319  *   unsigned short dst_x, dst_y;    upper left corner of dest-region
    320  *   unsigned short w, h;            width, height of region
    321  *   unsigned short mask;            bitmask to apply
    322  * };
    323  *
    324  * All coordinates are in pixels. RZ3BitBlit does not
    325  * check for boundaries - you've got to make sure that the
    326  * parameters have sensible values. 8 bit gfx-mode only!
    327  *
    328  * The blitter has a lot more capabilities, which aren't
    329  * currently used by theese routines, among them color-expanded
    330  * and text-blits, which can speed up GUIs like X11 a lot.
    331  * If you've got any idea how to make use of them within
    332  * your routines, contact me, and I'll implement the necessary
    333  * blit-operations.
    334  */
    335 
    336 	void RZ3BitBlit16( struct grf_bitblt * gbb );
    337 
    338 /* Does the same as RZ3BitBlit(), but for 16-bit screens */
    339 
    340 	void RZ3SetPanning(unsigned short xoff, unsigned short yoff);
    341 
    342 /*
    343  * Moves the logical coordinate (xoff, yoff) to the upper left corner
    344  * of your screen. Of course, you shouldn't specify excess values that would
    345  * show garbage in the lower right area of your screen... SetPanning()
    346  * does NOT check for boundaries.
    347  * Please read the documentation of RZ3SetHWCloc, too.
    348  */
    349 
    350 	void RZ3SetupHWC (unsigned char col1, unsigned col2,
    351                      unsigned char hsx, unsigned char hsy,
    352                      const unsigned long * data);
    353 
    354 /*
    355  * Initializes and switches on the hardware-cursor sprite.
    356  * The parameters are:
    357  * col1     - the first color
    358  * col2     - the second color
    359  * hsx      - hot-spot location offset x
    360  * hsy      - hot-spot location offset y
    361  * data     - a pointer to the bitmap data to be used for the sprite
    362  *
    363  * The organization of the data is - as always with MSDOS related
    364  * products - rather strange: The first and the second long-word
    365  * represent bitplane0 for the first 64 pixels. The following two
    366  * long-words represent bitplane1 for the first 64 pixels. But
    367  * the long-words are organized in Intel-fashion, beginning with
    368  * the least significant byte, ending with the most significant
    369  * one. The most significant bit of each byte is the leftmost,
    370  * as one would expect it. Now the weird color-assignments:
    371  *
    372  * bitplane0 bitplane1       result
    373  *     0         0            col2
    374  *     0         1            col1
    375  *     1         0          transparent
    376  *     1         1     background-color XOR 0xff
    377  *
    378  * The size of the data has to be 64*64*2/8 = 1024 byte,
    379  * obviously, the size of the sprite is 64x64 pixels.
    380  */
    381 
    382 
    383 	void RZ3DisableHWC (void);
    384 
    385 /* simply disables the hardware-cursor sprite */
    386 
    387 	void RZ3SetHWCloc (unsigned short x, unsigned short y);
    388 
    389 /*
    390  * sets the location of the hardwar-cursor sprite to x,y
    391  * relative to the logical screen beginning.
    392  * IMPORTANT: If you use RZ3SetHWCloc() to set the position
    393  * of the hardware-cursor sprite, all necessary panning is
    394  * done automatically - you can treat the display without
    395  * even knowing about the physical screen size that is
    396  * displayed.
    397  */
    398 
    399 #endif
    400 
    401 #endif /* RZ3_BSD_h */
    402 
    403 
    404 /* -------------- START OF CODE -------------- */
    405 
    406 /* read VGA register */
    407 #define vgar(ba, reg) (*(((volatile unsigned char *)ba)+reg))
    408 
    409 /* write VGA register */
    410 #define vgaw(ba, reg, val) \
    411 	*(((volatile unsigned char *)ba)+reg) = val
    412 
    413 /*
    414  * defines for the used register addresses (mw)
    415  *
    416  * NOTE: there are some registers that have different addresses when
    417  *       in mono or color mode. We only support color mode, and thus
    418  *       some addresses won't work in mono-mode!
    419  */
    420 
    421 /* General Registers: */
    422 #define GREG_STATUS0_R		0x03C2
    423 #define GREG_STATUS1_R		0x03DA
    424 #define GREG_MISC_OUTPUT_R	0x03CC
    425 #define GREG_MISC_OUTPUT_W	0x03C2
    426 #define GREG_FEATURE_CONTROL_R	0x03CA
    427 #define GREG_FEATURE_CONTROL_W	0x03DA
    428 #define GREG_POS		0x0102
    429 
    430 /* Attribute Controller: */
    431 #define ACT_ADDRESS		0x03C0
    432 #define ACT_ADDRESS_R		0x03C0
    433 #define ACT_ADDRESS_W		0x03C0
    434 #define ACT_ADDRESS_RESET	0x03DA
    435 #define ACT_ID_PALETTE0		0x00
    436 #define ACT_ID_PALETTE1		0x01
    437 #define ACT_ID_PALETTE2		0x02
    438 #define ACT_ID_PALETTE3		0x03
    439 #define ACT_ID_PALETTE4		0x04
    440 #define ACT_ID_PALETTE5		0x05
    441 #define ACT_ID_PALETTE6		0x06
    442 #define ACT_ID_PALETTE7		0x07
    443 #define ACT_ID_PALETTE8		0x08
    444 #define ACT_ID_PALETTE9		0x09
    445 #define ACT_ID_PALETTE10	0x0A
    446 #define ACT_ID_PALETTE11	0x0B
    447 #define ACT_ID_PALETTE12	0x0C
    448 #define ACT_ID_PALETTE13	0x0D
    449 #define ACT_ID_PALETTE14	0x0E
    450 #define ACT_ID_PALETTE15	0x0F
    451 #define ACT_ID_ATTR_MODE_CNTL	0x10
    452 #define ACT_ID_OVERSCAN_COLOR	0x11
    453 #define ACT_ID_COLOR_PLANE_ENA	0x12
    454 #define ACT_ID_HOR_PEL_PANNING	0x13
    455 #define ACT_ID_COLOR_SELECT	0x14
    456 
    457 /* Graphics Controller: */
    458 #define GCT_ADDRESS		0x03CE
    459 #define GCT_ADDRESS_R		0x03CE
    460 #define GCT_ADDRESS_W		0x03CF
    461 #define GCT_ID_SET_RESET	0x00
    462 #define GCT_ID_ENABLE_SET_RESET	0x01
    463 #define GCT_ID_COLOR_COMPARE	0x02
    464 #define GCT_ID_DATA_ROTATE	0x03
    465 #define GCT_ID_READ_MAP_SELECT	0x04
    466 #define GCT_ID_GRAPHICS_MODE	0x05
    467 #define GCT_ID_MISC		0x06
    468 #define GCT_ID_COLOR_XCARE	0x07
    469 #define GCT_ID_BITMASK		0x08
    470 
    471 /* Sequencer: */
    472 #define SEQ_ADDRESS		0x03C4
    473 #define SEQ_ADDRESS_R		0x03C4
    474 #define SEQ_ADDRESS_W		0x03C5
    475 #define SEQ_ID_RESET		0x00
    476 #define SEQ_ID_CLOCKING_MODE	0x01
    477 #define SEQ_ID_MAP_MASK		0x02
    478 #define SEQ_ID_CHAR_MAP_SELECT	0x03
    479 #define SEQ_ID_MEMORY_MODE	0x04
    480 #define SEQ_ID_EXTENDED_ENABLE	0x05	/* down from here, all seq registers are NCR extensions */
    481 #define SEQ_ID_UNKNOWN1         0x06
    482 #define SEQ_ID_UNKNOWN2         0x07
    483 #define SEQ_ID_CHIP_ID		0x08
    484 #define SEQ_ID_UNKNOWN3         0x09
    485 #define SEQ_ID_CURSOR_COLOR1	0x0A
    486 #define SEQ_ID_CURSOR_COLOR0	0x0B
    487 #define SEQ_ID_CURSOR_CONTROL	0x0C
    488 #define SEQ_ID_CURSOR_X_LOC_HI	0x0D
    489 #define SEQ_ID_CURSOR_X_LOC_LO	0x0E
    490 #define SEQ_ID_CURSOR_Y_LOC_HI	0x0F
    491 #define SEQ_ID_CURSOR_Y_LOC_LO	0x10
    492 #define SEQ_ID_CURSOR_X_INDEX	0x11
    493 #define SEQ_ID_CURSOR_Y_INDEX	0x12
    494 #define SEQ_ID_CURSOR_STORE_HI	0x13	/* manual still wrong here.. argl! */
    495 #define SEQ_ID_CURSOR_STORE_LO	0x14	/* downto 0x16 */
    496 #define SEQ_ID_CURSOR_ST_OFF_HI	0x15
    497 #define SEQ_ID_CURSOR_ST_OFF_LO	0x16
    498 #define SEQ_ID_CURSOR_PIXELMASK	0x17
    499 #define SEQ_ID_PRIM_HOST_OFF_HI	0x18
    500 #define SEQ_ID_PRIM_HOST_OFF_LO	0x19
    501 #define SEQ_ID_LINEAR_0		0x1A
    502 #define SEQ_ID_LINEAR_1		0x1B
    503 #define SEQ_ID_SEC_HOST_OFF_HI	0x1C
    504 #define SEQ_ID_SEC_HOST_OFF_LO	0x1D
    505 #define SEQ_ID_EXTENDED_MEM_ENA	0x1E
    506 #define SEQ_ID_EXT_CLOCK_MODE	0x1F
    507 #define SEQ_ID_EXT_VIDEO_ADDR	0x20
    508 #define SEQ_ID_EXT_PIXEL_CNTL	0x21
    509 #define SEQ_ID_BUS_WIDTH_FEEDB	0x22
    510 #define SEQ_ID_PERF_SELECT	0x23
    511 #define SEQ_ID_COLOR_EXP_WFG	0x24
    512 #define SEQ_ID_COLOR_EXP_WBG	0x25
    513 #define SEQ_ID_EXT_RW_CONTROL	0x26
    514 #define SEQ_ID_MISC_FEATURE_SEL	0x27
    515 #define SEQ_ID_COLOR_KEY_CNTL	0x28
    516 #define SEQ_ID_COLOR_KEY_MATCH0	0x29
    517 #define SEQ_ID_COLOR_KEY_MATCH1 0x2A
    518 #define SEQ_ID_COLOR_KEY_MATCH2 0x2B
    519 #define SEQ_ID_UNKNOWN6         0x2C
    520 #define SEQ_ID_CRC_CONTROL	0x2D
    521 #define SEQ_ID_CRC_DATA_LOW	0x2E
    522 #define SEQ_ID_CRC_DATA_HIGH	0x2F
    523 #define SEQ_ID_MEMORY_MAP_CNTL	0x30
    524 #define SEQ_ID_ACM_APERTURE_1	0x31
    525 #define SEQ_ID_ACM_APERTURE_2	0x32
    526 #define SEQ_ID_ACM_APERTURE_3	0x33
    527 #define SEQ_ID_BIOS_UTILITY_0	0x3e
    528 #define SEQ_ID_BIOS_UTILITY_1	0x3f
    529 
    530 /* CRT Controller: */
    531 #define CRT_ADDRESS		0x03D4
    532 #define CRT_ADDRESS_R		0x03D5
    533 #define CRT_ADDRESS_W		0x03D5
    534 #define CRT_ID_HOR_TOTAL	0x00
    535 #define CRT_ID_HOR_DISP_ENA_END	0x01
    536 #define CRT_ID_START_HOR_BLANK	0x02
    537 #define CRT_ID_END_HOR_BLANK	0x03
    538 #define CRT_ID_START_HOR_RETR	0x04
    539 #define CRT_ID_END_HOR_RETR	0x05
    540 #define CRT_ID_VER_TOTAL	0x06
    541 #define CRT_ID_OVERFLOW		0x07
    542 #define CRT_ID_PRESET_ROW_SCAN	0x08
    543 #define CRT_ID_MAX_SCAN_LINE	0x09
    544 #define CRT_ID_CURSOR_START	0x0A
    545 #define CRT_ID_CURSOR_END	0x0B
    546 #define CRT_ID_START_ADDR_HIGH	0x0C
    547 #define CRT_ID_START_ADDR_LOW	0x0D
    548 #define CRT_ID_CURSOR_LOC_HIGH	0x0E
    549 #define CRT_ID_CURSOR_LOC_LOW	0x0F
    550 #define CRT_ID_START_VER_RETR	0x10
    551 #define CRT_ID_END_VER_RETR	0x11
    552 #define CRT_ID_VER_DISP_ENA_END	0x12
    553 #define CRT_ID_OFFSET		0x13
    554 #define CRT_ID_UNDERLINE_LOC	0x14
    555 #define CRT_ID_START_VER_BLANK	0x15
    556 #define CRT_ID_END_VER_BLANK	0x16
    557 #define CRT_ID_MODE_CONTROL	0x17
    558 #define CRT_ID_LINE_COMPARE	0x18
    559 #define CRT_ID_UNKNOWN1         0x19	/* are these register really void ? */
    560 #define CRT_ID_UNKNOWN2         0x1A
    561 #define CRT_ID_UNKNOWN3         0x1B
    562 #define CRT_ID_UNKNOWN4         0x1C
    563 #define CRT_ID_UNKNOWN5         0x1D
    564 #define CRT_ID_UNKNOWN6         0x1E
    565 #define CRT_ID_UNKNOWN7         0x1F
    566 #define CRT_ID_UNKNOWN8         0x20
    567 #define CRT_ID_UNKNOWN9         0x21
    568 #define CRT_ID_UNKNOWN10      	0x22
    569 #define CRT_ID_UNKNOWN11      	0x23
    570 #define CRT_ID_UNKNOWN12      	0x24
    571 #define CRT_ID_UNKNOWN13      	0x25
    572 #define CRT_ID_UNKNOWN14      	0x26
    573 #define CRT_ID_UNKNOWN15      	0x27
    574 #define CRT_ID_UNKNOWN16      	0x28
    575 #define CRT_ID_UNKNOWN17      	0x29
    576 #define CRT_ID_UNKNOWN18      	0x2A
    577 #define CRT_ID_UNKNOWN19      	0x2B
    578 #define CRT_ID_UNKNOWN20      	0x2C
    579 #define CRT_ID_UNKNOWN21      	0x2D
    580 #define CRT_ID_UNKNOWN22      	0x2E
    581 #define CRT_ID_UNKNOWN23      	0x2F
    582 #define CRT_ID_EXT_HOR_TIMING1	0x30	/* down from here, all crt registers are NCR extensions */
    583 #define CRT_ID_EXT_START_ADDR	0x31
    584 #define CRT_ID_EXT_HOR_TIMING2	0x32
    585 #define CRT_ID_EXT_VER_TIMING	0x33
    586 #define CRT_ID_MONITOR_POWER	0x34
    587 
    588 /* PLL chip  (clock frequency synthesizer) I'm guessing here... */
    589 #define PLL_ADDRESS		0x83c8
    590 #define PLL_ADDRESS_W		0x83c9
    591 
    592 
    593 /* Video DAC */
    594 #define VDAC_ADDRESS		0x03c8
    595 #define VDAC_ADDRESS_W		0x03c8
    596 #define VDAC_ADDRESS_R		0x03c7
    597 #define VDAC_STATE		0x03c7
    598 #define VDAC_DATA		0x03c9
    599 #define VDAC_MASK		0x03c6
    600 
    601 
    602 /* Accelerator Control Menu (memory mapped registers, includes blitter) */
    603 #define ACM_PRIMARY_OFFSET	0x00
    604 #define ACM_SECONDARY_OFFSET	0x04
    605 #define ACM_MODE_CONTROL	0x08
    606 #define ACM_CURSOR_POSITION	0x0c
    607 #define ACM_START_STATUS	0x30
    608 #define ACM_CONTROL		0x34
    609 #define ACM_RASTEROP_ROTATION	0x38
    610 #define ACM_BITMAP_DIMENSION	0x3c
    611 #define ACM_DESTINATION		0x40
    612 #define ACM_SOURCE		0x44
    613 #define ACM_PATTERN		0x48
    614 #define ACM_FOREGROUND		0x4c
    615 #define ACM_BACKGROUND		0x50
    616 
    617 
    618 #define WGfx(ba, idx, val) \
    619 	do { vgaw(ba, GCT_ADDRESS, idx); vgaw(ba, GCT_ADDRESS_W , val); } while (0)
    620 
    621 #define WSeq(ba, idx, val) \
    622 	do { vgaw(ba, SEQ_ADDRESS, idx); vgaw(ba, SEQ_ADDRESS_W , val); } while (0)
    623 
    624 #define WCrt(ba, idx, val) \
    625 	do { vgaw(ba, CRT_ADDRESS, idx); vgaw(ba, CRT_ADDRESS_W , val); } while (0)
    626 
    627 #define WAttr(ba, idx, val) \
    628 	do { vgaw(ba, ACT_ADDRESS, idx); vgaw(ba, ACT_ADDRESS_W, val); } while (0)
    629 
    630 #define Map(m) \
    631 	do { WGfx(ba, GCT_ID_READ_MAP_SELECT, m & 3 ); WSeq(ba, SEQ_ID_MAP_MASK, (1 << (m & 3))); } while (0)
    632 
    633 #define WPLL(ba, idx, val) \
    634 	do { 	vgaw(ba, PLL_ADDRESS, idx);\
    635 	vgaw(ba, PLL_ADDRESS_W, (val & 0xff));\
    636 	vgaw(ba, PLL_ADDRESS_W, (val >> 8)); } while (0)
    637 
    638 
    639 static inline unsigned char RAttr(volatile void * ba, short idx) {
    640 	vgaw (ba, ACT_ADDRESS, idx);
    641 	return vgar (ba, ACT_ADDRESS_R);
    642 }
    643 
    644 static inline unsigned char RSeq(volatile void * ba, short idx) {
    645 	vgaw (ba, SEQ_ADDRESS, idx);
    646 	return vgar (ba, SEQ_ADDRESS_R);
    647 }
    648 
    649 static inline unsigned char RCrt(volatile void * ba, short idx) {
    650 	vgaw (ba, CRT_ADDRESS, idx);
    651 	return vgar (ba, CRT_ADDRESS_R);
    652 }
    653 
    654 static inline unsigned char RGfx(volatile void * ba, short idx) {
    655 	vgaw(ba, GCT_ADDRESS, idx);
    656 	return vgar (ba, GCT_ADDRESS_R);
    657 }
    658 
    659 void RZ3DisableHWC __P((struct grf_softc *gp));
    660 void RZ3SetupHWC __P((struct grf_softc *gp, unsigned char col1, unsigned int col2, unsigned char hsx, unsigned char hsy, const long unsigned int *data));
    661 void RZ3AlphaErase __P((struct grf_softc *gp, short unsigned int xd, short unsigned int yd, short unsigned int w, short unsigned int h));
    662 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));
    663 void RZ3BitBlit __P((struct grf_softc *gp, struct grf_bitblt *gbb));
    664 void RZ3BitBlit16 __P((struct grf_softc *gp, struct grf_bitblt *gbb));
    665 void RZ3SetCursorPos __P((struct grf_softc *gp, short unsigned int pos));
    666 void RZ3LoadPalette __P((struct grf_softc *gp, unsigned char *pal, unsigned char firstcol, unsigned char colors));
    667 void RZ3SetPalette __P((struct grf_softc *gp, unsigned char colornum, unsigned char red, unsigned char green, unsigned char blue));
    668 void RZ3SetPanning __P((struct grf_softc *gp, short unsigned int xoff, short unsigned int yoff));
    669 void RZ3SetHWCloc __P((struct grf_softc *gp, short unsigned int x, short unsigned int y));
    670 int rh_mode __P((register struct grf_softc *gp, int cmd, void *arg, int a2, int a3));
    671 int rh_ioctl __P((register struct grf_softc *gp, u_long cmd, void *data));
    672 int rh_getcmap __P((struct grf_softc *gfp, struct grf_colormap *cmap));
    673 int rh_putcmap __P((struct grf_softc *gfp, struct grf_colormap *cmap));
    674 int rh_getspritepos __P((struct grf_softc *gp, struct grf_position *pos));
    675 int rh_setspritepos __P((struct grf_softc *gp, struct grf_position *pos));
    676 int rh_getspriteinfo __P((struct grf_softc *gp, struct grf_spriteinfo *info));
    677 int rh_setspriteinfo __P((struct grf_softc *gp, struct grf_spriteinfo *info));
    678 int rh_getspritemax __P((struct grf_softc *gp, struct grf_position *pos));
    679 int rh_bitblt __P((struct grf_softc *gp, struct grf_bitblt *bb));
    680 
    681 
    682 struct ite_softc;
    683 void rh_init __P((struct ite_softc *));
    684 void rh_cursor __P((struct ite_softc *, int));
    685 void rh_deinit __P((struct ite_softc *));
    686 void rh_putc __P((struct ite_softc *, int, int, int, int));
    687 void rh_clear __P((struct ite_softc *, int, int, int, int));
    688 void rh_scroll __P((struct ite_softc *, int, int, int, int));
    689 
    690 #endif /* _GRF_RHREG_H */
    691