src/add-ons/accelerants/s3/virge.h

   1 /*
   2         Haiku S3 Virge driver adapted from the X.org S3 Virge driver.
   3
   4         Copyright (C) 1994-1999 The XFree86 Project, Inc.  All Rights Reserved.
   5
   6         Copyright 2007-2008 Haiku, Inc.  All rights reserved.
   7         Distributed under the terms of the MIT license.
   8
   9         Authors:
  10         Gerald Zajac 2007-2008
  11 */
  12
  13
  14 #ifndef __VIRGE_H__
  15 #define __VIRGE_H__
  16
  17
  18
  19 #define CURSOR_BYTES    1024            // bytes used for cursor image in video memory
  20
  21 // Miscellaneous registers.
  22 #define SUBSYS_STAT_REG         0x8504
  23 #define SYSTEM_CONTROL_REG      0x83DA
  24 #define DDC_REG                         0xFF20
  25
  26 // Memory port controller registers.
  27 #define FIFO_CONTROL_REG        0x8200
  28
  29 // Image write stuff.
  30 #define SRC_BASE                0xA4D4
  31 #define DEST_BASE               0xA4D8
  32 #define CLIP_L_R                0xA4DC
  33 #define CLIP_T_B                0xA4E0
  34 #define DEST_SRC_STR    0xA4E4
  35 #define MONO_PAT_0              0xA4E8
  36 #define MONO_PAT_1              0xA4EC
  37 #define PAT_BG_CLR              0xA4F0
  38 #define PAT_FG_CLR              0xA4F4
  39 #define CMD_SET                 0xA500
  40 #define RWIDTH_HEIGHT   0xA504
  41 #define RSRC_XY                 0xA508
  42 #define RDEST_XY                0xA50C
  43
  44 // Command Register.
  45 #define CMD_OP_MSK              (0xf << 27)
  46 #define CMD_BITBLT              (0x0 << 27)
  47 #define CMD_RECT                ((0x2 << 27) | 0x0100)
  48 #define CMD_LINE                (0x3 << 27)
  49 #define CMD_POLYFILL    (0x5 << 27)
  50 #define CMD_NOP                 (0xf << 27)
  51
  52 #define DRAW            0x0020
  53
  54 // Destination Color Format.
  55 #define DST_8BPP        0x00
  56 #define DST_16BPP       0x04
  57 #define DST_24BPP       0x08
  58
  59 // X Positive, Y Positive (Bit BLT).
  60 #define CMD_XP          0x02000000
  61 #define CMD_YP          0x04000000
  62
  63
  64 #define IN_SUBSYS_STAT() (ReadReg32(SUBSYS_STAT_REG))
  65
  66
  67 static inline void VerticalRetraceWait()
  68 {
  69         if (ReadCrtcReg(0x17) & 0x80) {
  70                 int i = 0x10000;
  71                 while ((ReadReg8(SYSTEM_CONTROL_REG) & 0x08) == 0x08 && i--) ;
  72                 i = 0x10000;
  73                 while ((ReadReg8(SYSTEM_CONTROL_REG) & 0x08) == 0x00 && i--) ;
  74         }
  75 }
  76
  77
  78 #endif // __VIRGE_H__