Haiku S3 Virge driver adapted from the X.org S3 Virge driver.
Copyright (C) 1994-1999 The XFree86 Project, Inc. All Rights Reserved.
Copyright 2007-2008 Haiku, Inc. All rights reserved.
Distributed under the terms of the MIT license.
Authors:
Gerald Zajac 2007-2008
*/
#ifndef __VIRGE_H__
#define __VIRGE_H__
#define CURSOR_BYTES 1024 // bytes used for cursor image in video memory
#define SUBSYS_STAT_REG 0x8504
#define SYSTEM_CONTROL_REG 0x83DA
#define DDC_REG 0xFF20
#define FIFO_CONTROL_REG 0x8200
#define SRC_BASE 0xA4D4
#define DEST_BASE 0xA4D8
#define CLIP_L_R 0xA4DC
#define CLIP_T_B 0xA4E0
#define DEST_SRC_STR 0xA4E4
#define MONO_PAT_0 0xA4E8
#define MONO_PAT_1 0xA4EC
#define PAT_BG_CLR 0xA4F0
#define PAT_FG_CLR 0xA4F4
#define CMD_SET 0xA500
#define RWIDTH_HEIGHT 0xA504
#define RSRC_XY 0xA508
#define RDEST_XY 0xA50C
#define CMD_OP_MSK (0xf << 27)
#define CMD_BITBLT (0x0 << 27)
#define CMD_RECT ((0x2 << 27) | 0x0100)
#define CMD_LINE (0x3 << 27)
#define CMD_POLYFILL (0x5 << 27)
#define CMD_NOP (0xf << 27)
#define DRAW 0x0020
#define DST_8BPP 0x00
#define DST_16BPP 0x04
#define DST_24BPP 0x08
#define CMD_XP 0x02000000
#define CMD_YP 0x04000000
#define IN_SUBSYS_STAT() (ReadReg32(SUBSYS_STAT_REG))
static inline void VerticalRetraceWait()
{
if (ReadCrtcReg(0x17) & 0x80) {
int i = 0x10000;
while ((ReadReg8(SYSTEM_CONTROL_REG) & 0x08) == 0x08 && i--) ;
i = 0x10000;
while ((ReadReg8(SYSTEM_CONTROL_REG) & 0x08) == 0x00 && i--) ;
}
}
#endif
