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/*
* Copyright 1997,1998 by Alan Hourihane, Wigan, England.
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Alan Hourihane not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Alan Hourihane makes no representations
* about the suitability of this software for any purpose. It is provided
* "as is" without express or implied warranty.
*
* ALAN HOURIHANE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL ALAN HOURIHANE BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*
* Author: Alan Hourihane, <alanh@fairlite.demon.co.uk>
*/
/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/tga/tga_regs.h,v 1.11 2000/10/20 12:57:26 alanh Exp $ */
/* TGA hardware description (minimal)
*
* Offsets within Memory Space
*
* Portions taken from linux's own tga driver...
* Courtesy of Jay Estabrook.
*/
#ifndef TGA_REGS_H
#define TGA_REGS_H
#include "compiler.h"
#define TYPE_TGA_8PLANE 0
#define TYPE_TGA_24PLANE 1
#define TYPE_TGA_24PLUSZ 3
#if 1
#define WMB mem_barrier()
#else
#define WMB write_mem_barrier()
#endif
#define TGA_WRITE_REG(v,r) \
do {\
*(unsigned int *)((char*)(pTga->IOBase)+(r)) = (v);\
WMB;\
} while (0)
#define TGA_READ_REG(r) \
( *(unsigned int *)((char*)(pTga->IOBase)+(r)))
#define TGA2_WRITE_CLOCK_REG(v,r) \
do {\
*(unsigned int *)((char*)(pTga->ClkBase)+(r)) = (v);\
WMB;\
} while (0)
#define TGA2_WRITE_RAMDAC_REG(v,r) \
do {\
*(unsigned int *)((char*)(pTga->DACBase)+(r)) = (v);\
WMB;\
} while (0)
#define TGA2_READ_RAMDAC_REG(r) \
( *(unsigned int *)((char*)(pTga->DACBase)+(r)))
#if defined(__alpha__) && 0 /* ?? disable this for now ?? */
/* we can avoid an mb() if we write to an alternate register space each time */
#define MAX_OFFSET 8192
#define OFFSET_INC 1024
#define TGA_DECL() register unsigned long iobase, offset
#define TGA_GET_IOBASE() iobase = (unsigned long)pTga->IOBase;
#define TGA_GET_OFFSET() offset = pTga->regOffset;
#define TGA_SAVE_OFFSET() pTga->regOffset = offset;
/* #define PROFILE */
#undef PROFILE
#ifdef PROFILE
static __inline__ unsigned int realcc()
{
u_long cc;
__asm__ volatile("rpcc %0" : "=r"(cc) : : "memory");
return cc;
}
#define TGA_FAST_WRITE_REG(v,r) \
do {\
start = realcc();\
*(unsigned int *)(iobase + offset + (r)) = v;\
offset += OFFSET_INC;\
if(offset > MAX_OFFSET) (offset = 0);\
stop = realcc();\
ErrorF("TGA_FAST_WRITE_REG = %d\n", stop - start);\
} while (0)
#else /* PROFILE */
#define TGA_FAST_WRITE_REG(v,r) \
do {\
*(unsigned int *)(iobase + offset + (r)) = v;\
offset += OFFSET_INC;\
if(offset > MAX_OFFSET) (offset = 0);\
} while (0)
#endif /* PROFILE */
#else /* __alpha__ */
#define TGA_DECL()
#define TGA_GET_IOBASE() ;
#define TGA_GET_OFFSET() ;
#define TGA_SAVE_OFFSET() ;
#define TGA_FAST_WRITE_REG(v,r) TGA_WRITE_REG(v,r)
#endif /* __alpha__ */
#define TGA_ROM_OFFSET 0x00000000
#define TGA2_CLOCK_OFFSET 0x00060000
#define TGA2_RAMDAC_OFFSET 0x00080000
#define TGA_REGS_OFFSET 0x00100000
#define TGA_8PLANE_FB_OFFSET 0x00200000
#define TGA_24PLANE_FB_OFFSET 0x00800000
#define TGA_24PLUSZ_FB_OFFSET 0x01000000
#define TGA_FOREGROUND_REG 0x0020
#define TGA_BACKGROUND_REG 0x0024
#define TGA_PLANEMASK_REG 0x0028
#define TGA_MODE_REG 0x0030
#define SIMPLE 0x00
#define Z3D 0x10
#define OPAQUESTIPPLE 0x01
#define FILL 0x20
#define TRANSPARENTSTIPPLE 0x05
#define BLOCKSTIPPLE 0x0D
#define BLOCKFILL 0x2D
#define OPAQUELINE 0x02
#define TRANSPARENTLINE 0x06
#define BPP8PACKED (0x00 << 8)
#define BPP8UNPACK (0x01 << 8)
#define BPP12LOW (0x02 << 8)
#define BPP12HIGH (0x06 << 8)
#define BPP24 (0x03 << 8)
#define CAP_ENDS 0x8000
#define X11 0x0000
#define MODE_WIN32 0x2000
/* copy mode */
#define COPY 0x07
/* opaque fill mode */
#define OPAQUEFILL 0x21
#define TRANSPARENTFILL 0x45
#define TGA_RASTEROP_REG 0x0034
#define TGA_PIXELSHIFT_REG 0x0038
#define TGA_ADDRESS_REG 0x003c
#define TGA_CONTINUE_REG 0x004c
#define TGA_DEEP_REG 0x0050
#define TGA_REVISION_REG 0x0054 /* TGA2 */
#define TGA_PIXELMASK_REG 0x002c
#define TGA_PIXELMASK_PERS_REG 0x005c
#define TGA_CURSOR_BASE_REG 0x0060
#define TGA_HORIZ_REG 0x0064
#define TGA_VERT_REG 0x0068
#define TGA_BASE_ADDR_REG 0x006c
#define TGA_VALID_REG 0x0070
#define TGA_CURSOR_XY_REG 0x0074
#define TGA_INTR_STAT_REG 0x007c
/* GDAR */
#define TGA_DATA_REG 0x0080
#define TGA_WIDTH_REG 0x009c
#define TGA_SPAN_REG 0x00bc
#define TGA_RAMDAC_SETUP_REG 0x00c0
#define TGA_NOSLOPE7_REG 0x011C
#define TGA_NOSLOPE6_REG 0x0118
#define TGA_NOSLOPE5_REG 0x0114
#define TGA_NOSLOPE4_REG 0x0110
#define TGA_NOSLOPE3_REG 0x010C
#define TGA_NOSLOPE2_REG 0x0108
#define TGA_NOSLOPE1_REG 0x0104
#define TGA_NOSLOPE0_REG 0x0100
#define TGA_SLOPE0_REG 0x0120
#define TGA_SLOPE1_REG 0x0124
#define TGA_SLOPE2_REG 0x0128
#define TGA_SLOPE3_REG 0x012C
#define TGA_SLOPE4_REG 0x0130
#define TGA_SLOPE5_REG 0x0134
#define TGA_SLOPE6_REG 0x0138
#define TGA_SLOPE7_REG 0x013C
#define TGA_BRES3_REG 0x0048
#define TGA_BRES2_REG 0x0044
#define TGA_BRES1_REG 0x0040
#define TGA_BLOCK_COLOR0_REG 0x0140
#define TGA_BLOCK_COLOR1_REG 0x0144
#define TGA_BLOCK_COLOR2_REG 0x0148
#define TGA_BLOCK_COLOR3_REG 0x014c
#define TGA_BLOCK_COLOR4_REG 0x0150
#define TGA_BLOCK_COLOR5_REG 0x0154
#define TGA_BLOCK_COLOR6_REG 0x0158
#define TGA_BLOCK_COLOR7_REG 0x015c
#define TGA_CLOCK_REG 0x01e8
#define TGA_RAMDAC_REG 0x01f0
#define TGA_CMD_STAT_REG 0x01f8
#define BT485_READ_BIT 0x01
#define BT485_WRITE_BIT 0x00
#endif
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