/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* SiS 300/540/630[S]/730[S],
* SiS 315[E|PRO]/550/[M]650/651/[M]661[F|M]X/740/[M]741[GX]/330/[M]760[GX],
* XGI V3XT/V5/V8, Z7
* frame buffer driver for Linux kernels >= 2.4.14 and >=2.6.3
*
* 2D acceleration part
*
* Based on the X driver's sis300_accel.h which is
* Copyright (C) 2001-2004 by Thomas Winischhofer, Vienna, Austria
* and sis310_accel.h which is
* Copyright (C) 2001-2004 by Thomas Winischhofer, Vienna, Austria
*
* Author: Thomas Winischhofer <thomas@winischhofer.net>:
* (see http://www.winischhofer.net/
* for more information and updates)
*/
#ifndef _SISFB_ACCEL_H
#define _SISFB_ACCEL_H
/* Guard accelerator accesses with spin_lock_irqsave? Works well without. */
#undef SISFB_USE_SPINLOCKS
#ifdef SISFB_USE_SPINLOCKS
#include <linux/spinlock.h>
#define CRITBEGIN spin_lock_irqsave(&ivideo->lockaccel, critflags);
#define CRITEND spin_unlock_irqrestore(&ivideo->lockaccel, critflags);
#define CRITFLAGS
unsigned long critflags;
#else
#define CRITBEGIN
#define CRITEND
#define CRITFLAGS
#endif
/* Definitions for the SIS engine communication. */
#define PATREGSIZE 384
/* Pattern register size. 384 bytes @ 0x8300 */
#define BR(x) (0x8200 | (x) << 2)
#define PBR(x) (0x8300 | (x) << 2)
/* SiS300 engine commands */
#define BITBLT 0x00000000
/* Blit */
#define COLOREXP 0x00000001
/* Color expand */
#define ENCOLOREXP 0x00000002
/* Enhanced color expand */
#define MULTIPLE_SCANLINE 0x00000003
/* ? */
#define LINE 0x00000004
/* Draw line */
#define TRAPAZOID_FILL 0x00000005
/* Fill trapezoid */
#define TRANSPARENT_BITBLT 0x00000006
/* Transparent Blit */
/* Additional engine commands for 315 */
#define ALPHA_BLEND 0x00000007
/* Alpha blend ? */
#define A3D_FUNCTION 0x00000008
/* 3D command ? */
#define CLEAR_Z_BUFFER 0x00000009
/* ? */
#define GRADIENT_FILL 0x0000000A
/* Gradient fill */
/* source select */
#define SRCVIDEO 0x00000000
/* source is video RAM */
#define SRCSYSTEM 0x00000010
/* source is system memory */
#define SRCCPUBLITBUF SRCSYSTEM
/* source is CPU-driven BitBuffer (for color expand) */
#define SRCAGP 0x00000020
/* source is AGP memory (?) */
/* Pattern flags */
#define PATFG 0x00000000
/* foreground color */
#define PATPATREG 0x00000040
/* pattern in pattern buffer (0x8300) */
#define PATMONO 0x00000080
/* mono pattern */
/* blitting direction (300 series only) */
#define X_INC 0x00010000
#define X_DEC 0x00000000
#define Y_INC 0x00020000
#define Y_DEC 0x00000000
/* Clipping flags */
#define NOCLIP 0x00000000
#define NOMERGECLIP 0x04000000
#define CLIPENABLE 0x00040000
#define CLIPWITHOUTMERGE 0x04040000
/* Transparency */
#define OPAQUE 0x00000000
#define TRANSPARENT 0x00100000
/* ? */
#define DSTAGP 0x02000000
#define DSTVIDEO 0x02000000
/* Subfunctions for Color/Enhanced Color Expansion (315 only) */
#define COLOR_TO_MONO 0x00100000
#define AA_TEXT 0x00200000
/* Some general registers for 315 series */
#define SRC_ADDR 0x8200
#define SRC_PITCH 0x8204
#define AGP_BASE 0x8206
/* color-depth dependent value */
#define SRC_Y 0x8208
#define SRC_X 0x820A
#define DST_Y 0x820C
#define DST_X 0x820E
#define DST_ADDR 0x8210
#define DST_PITCH 0x8214
#define DST_HEIGHT 0x8216
#define RECT_WIDTH 0x8218
#define RECT_HEIGHT 0x821A
#define PAT_FGCOLOR 0x821C
#define PAT_BGCOLOR 0x8220
#define SRC_FGCOLOR 0x8224
#define SRC_BGCOLOR 0x8228
#define MONO_MASK 0x822C
#define LEFT_CLIP 0x8234
#define TOP_CLIP 0x8236
#define RIGHT_CLIP 0x8238
#define BOTTOM_CLIP 0x823A
#define COMMAND_READY 0x823C
#define FIRE_TRIGGER 0x8240
#define PATTERN_REG 0x8300
/* 384 bytes pattern buffer */
/* Transparent bitblit registers */
#define TRANS_DST_KEY_HIGH PAT_FGCOLOR
#define TRANS_DST_KEY_LOW PAT_BGCOLOR
#define TRANS_SRC_KEY_HIGH SRC_FGCOLOR
#define TRANS_SRC_KEY_LOW SRC_BGCOLOR
/* Store queue length in par */
#define CmdQueLen ivideo->cmdqueuelength
/* ------------- SiS 300 series -------------- */
/* BR(16) (0x8240):
bit 31 2D engine: 1 is idle,
bit 30 3D engine: 1 is idle,
bit 29 Command queue: 1 is empty
bits 28:24: Current CPU driven BitBlt buffer stage bit[4:0]
bits 15:0: Current command queue length
*/
#define SiS300Idle \
{ \
while((MMIO_IN16(ivideo->mmio_vbase, BR(16)+2) & 0xE000) != 0xE000){} \
while((MMIO_IN16(ivideo->mmio_vbase, BR(16)+2) & 0xE000) != 0xE000){} \
while((MMIO_IN16(ivideo->mmio_vbase, BR(16)+2) & 0xE000) != 0xE000){} \
CmdQueLen = MMIO_IN16(ivideo->mmio_vbase, 0x8240); \
}
/* (do three times, because 2D engine seems quite unsure about whether or not it's idle) */
#define SiS300SetupSRCBase(base) \
if(CmdQueLen <= 0) SiS300Idle;\
MMIO_OUT32(ivideo->mmio_vbase, BR(0), base);\
CmdQueLen--;
#define SiS300SetupSRCPitch(pitch) \
if(CmdQueLen <= 0) SiS300Idle;\
MMIO_OUT16(ivideo->mmio_vbase, BR(1), pitch);\
CmdQueLen--;
#define SiS300SetupSRCXY(x,y) \
if(CmdQueLen <= 0) SiS300Idle;\
MMIO_OUT32(ivideo->mmio_vbase, BR(2), (x)<<16 | (y) );\
CmdQueLen--;
#define SiS300SetupDSTBase(base) \
if(CmdQueLen <= 0) SiS300Idle;\
MMIO_OUT32(ivideo->mmio_vbase, BR(4), base);\
CmdQueLen--;
#define SiS300SetupDSTXY(x,y) \
if(CmdQueLen <= 0) SiS300Idle;\
MMIO_OUT32(ivideo->mmio_vbase, BR(3), (x)<<16 | (y) );\
CmdQueLen--;
#define SiS300SetupDSTRect(x,y) \
if(CmdQueLen <= 0) SiS300Idle;\
MMIO_OUT32(ivideo->mmio_vbase, BR(5), (y)<<16 | (x) );\
CmdQueLen--;
#define SiS300SetupDSTColorDepth(bpp) \
if(CmdQueLen <= 0) SiS300Idle;\
MMIO_OUT16(ivideo->mmio_vbase, BR(1)+2, bpp);\
CmdQueLen--;
#define SiS300SetupRect(w,h) \
if(CmdQueLen <= 0) SiS300Idle;\
MMIO_OUT32(ivideo->mmio_vbase, BR(6), (h)<<16 | (w) );\
CmdQueLen--;
#define SiS300SetupPATFG(color) \
if(CmdQueLen <= 0) SiS300Idle;\
MMIO_OUT32(ivideo->mmio_vbase, BR(7), color);\
CmdQueLen--;
#define SiS300SetupPATBG(color) \
if(CmdQueLen <= 0) SiS300Idle;\
MMIO_OUT32(ivideo->mmio_vbase, BR(8), color);\
CmdQueLen--;
#define SiS300SetupSRCFG(color) \
if(CmdQueLen <= 0) SiS300Idle;\
MMIO_OUT32(ivideo->mmio_vbase, BR(9), color);\
CmdQueLen--;
#define SiS300SetupSRCBG(color) \
if(CmdQueLen <= 0) SiS300Idle;\
MMIO_OUT32(ivideo->mmio_vbase, BR(10), color);\
CmdQueLen--;
/* 0x8224 src colorkey high */
/* 0x8228 src colorkey low */
/* 0x821c dest colorkey high */
/* 0x8220 dest colorkey low */
#define SiS300SetupSRCTrans(color) \
if(CmdQueLen <= 1) SiS300Idle;\
MMIO_OUT32(ivideo->mmio_vbase, 0x8224, color);\
MMIO_OUT32(ivideo->mmio_vbase, 0x8228, color);\
CmdQueLen -= 2;
#define SiS300SetupDSTTrans(color) \
if(CmdQueLen <= 1) SiS300Idle;\
MMIO_OUT32(ivideo->mmio_vbase, 0x821C, color); \
MMIO_OUT32(ivideo->mmio_vbase, 0x8220, color); \
CmdQueLen -= 2;
#define SiS300SetupMONOPAT(p0,p1) \
if(CmdQueLen <= 1) SiS300Idle;\
MMIO_OUT32(ivideo->mmio_vbase, BR(11), p0);\
MMIO_OUT32(ivideo->mmio_vbase, BR(12), p1);\
CmdQueLen -= 2;
#define SiS300SetupClipLT(left,top) \
if(CmdQueLen <= 0) SiS300Idle;\
MMIO_OUT32(ivideo->mmio_vbase, BR(13), ((left) & 0xFFFF) | (top)<<16 );\
CmdQueLen--;
#define SiS300SetupClipRB(right,bottom) \
if(CmdQueLen <= 0) SiS300Idle;\
MMIO_OUT32(ivideo->mmio_vbase, BR(14), ((right) & 0xFFFF) | (bottom)<<16 );\
CmdQueLen--;
/* General */
#define SiS300SetupROP(rop) \
ivideo->CommandReg = (rop) << 8;
#define SiS300SetupCMDFlag(flags) \
ivideo->CommandReg |= (flags);
#define SiS300DoCMD \
if(CmdQueLen <= 1) SiS300Idle;\
MMIO_OUT32(ivideo->mmio_vbase, BR(15), ivideo->CommandReg); \
MMIO_OUT32(ivideo->mmio_vbase, BR(16), 0);\
CmdQueLen -= 2;
/* -------------- SiS 315/330 series --------------- */
/* Q_STATUS:
bit 31 = 1: All engines idle and all queues empty
bit 30 = 1: Hardware Queue (=HW CQ, 2D queue, 3D queue) empty
bit 29 = 1: 2D engine is idle
bit 28 = 1: 3D engine is idle
bit 27 = 1: HW command queue empty
bit 26 = 1: 2D queue empty
bit 25 = 1: 3D queue empty
bit 24 = 1: SW command queue empty
bits 23:16: 2D counter 3
bits 15:8: 2D counter 2
bits 7:0: 2D counter 1
*/
#define SiS310Idle \
{ \
while( (MMIO_IN16(ivideo->mmio_vbase, Q_STATUS+2) & 0x8000) != 0x8000){} \
while( (MMIO_IN16(ivideo->mmio_vbase, Q_STATUS+2) & 0x8000) != 0x8000){} \
while( (MMIO_IN16(ivideo->mmio_vbase, Q_STATUS+2) & 0x8000) != 0x8000){} \
while( (MMIO_IN16(ivideo->mmio_vbase, Q_STATUS+2) & 0x8000) != 0x8000){} \
CmdQueLen = 0; \
}
#define SiS310SetupSRCBase(base) \
if(CmdQueLen <= 0) SiS310Idle;\
MMIO_OUT32(ivideo->mmio_vbase, SRC_ADDR, base);\
CmdQueLen--;
#define SiS310SetupSRCPitch(pitch) \
if(CmdQueLen <= 0) SiS310Idle;\
MMIO_OUT16(ivideo->mmio_vbase, SRC_PITCH, pitch);\
CmdQueLen--;
#define SiS310SetupSRCXY(x,y) \
if(CmdQueLen <= 0) SiS310Idle;\
MMIO_OUT32(ivideo->mmio_vbase, SRC_Y, (x)<<16 | (y) );\
CmdQueLen--;
#define SiS310SetupDSTBase(base) \
if(CmdQueLen <= 0) SiS310Idle;\
MMIO_OUT32(ivideo->mmio_vbase, DST_ADDR, base);\
CmdQueLen--;
#define SiS310SetupDSTXY(x,y) \
if(CmdQueLen <= 0) SiS310Idle;\
MMIO_OUT32(ivideo->mmio_vbase, DST_Y, (x)<<16 | (y) );\
CmdQueLen--;
#define SiS310SetupDSTRect(x,y) \
if(CmdQueLen <= 0) SiS310Idle;\
MMIO_OUT32(ivideo->mmio_vbase, DST_PITCH, (y)<<16 | (x) );\
CmdQueLen--;
#define SiS310SetupDSTColorDepth(bpp) \
if(CmdQueLen <= 0) SiS310Idle;\
MMIO_OUT16(ivideo->mmio_vbase, AGP_BASE, bpp);\
CmdQueLen--;
#define SiS310SetupRect(w,h) \
if(CmdQueLen <= 0) SiS310Idle;\
MMIO_OUT32(ivideo->mmio_vbase, RECT_WIDTH, (h)<<16 | (w) );\
CmdQueLen--;
#define SiS310SetupPATFG(color) \
if(CmdQueLen <= 0) SiS310Idle;\
MMIO_OUT32(ivideo->mmio_vbase, PAT_FGCOLOR, color);\
CmdQueLen--;
#define SiS310SetupPATBG(color) \
if(CmdQueLen <= 0) SiS310Idle;\
MMIO_OUT32(ivideo->mmio_vbase, PAT_BGCOLOR, color);\
CmdQueLen--;
#define SiS310SetupSRCFG(color) \
if(CmdQueLen <= 0) SiS310Idle;\
MMIO_OUT32(ivideo->mmio_vbase, SRC_FGCOLOR, color);\
CmdQueLen--;
#define SiS310SetupSRCBG(color) \
if(CmdQueLen <= 0) SiS310Idle;\
MMIO_OUT32(ivideo->mmio_vbase, SRC_BGCOLOR, color);\
CmdQueLen--;
#define SiS310SetupSRCTrans(color) \
if(CmdQueLen <= 1) SiS310Idle;\
MMIO_OUT32(ivideo->mmio_vbase, TRANS_SRC_KEY_HIGH, color);\
MMIO_OUT32(ivideo->mmio_vbase, TRANS_SRC_KEY_LOW, color);\
CmdQueLen -= 2;
#define SiS310SetupDSTTrans(color) \
if(CmdQueLen <= 1) SiS310Idle;\
MMIO_OUT32(ivideo->mmio_vbase, TRANS_DST_KEY_HIGH, color); \
MMIO_OUT32(ivideo->mmio_vbase, TRANS_DST_KEY_LOW, color); \
CmdQueLen -= 2;
#define SiS310SetupMONOPAT(p0,p1) \
if(CmdQueLen <= 1) SiS310Idle;\
MMIO_OUT32(ivideo->mmio_vbase, MONO_MASK, p0);\
MMIO_OUT32(ivideo->mmio_vbase, MONO_MASK+4, p1);\
CmdQueLen -= 2;
#define SiS310SetupClipLT(left,top) \
if(CmdQueLen <= 0) SiS310Idle;\
MMIO_OUT32(ivideo->mmio_vbase, LEFT_CLIP, ((left) & 0xFFFF) | (top)<<16 );\
CmdQueLen--;
#define SiS310SetupClipRB(right,bottom) \
if(CmdQueLen <= 0) SiS310Idle;\
MMIO_OUT32(ivideo->mmio_vbase, RIGHT_CLIP, ((right) & 0xFFFF) | (bottom)<<16 );\
CmdQueLen--;
#define SiS310SetupROP(rop) \
ivideo->CommandReg = (rop) << 8;
#define SiS310SetupCMDFlag(flags) \
ivideo->CommandReg |= (flags);
#define SiS310DoCMD \
if(CmdQueLen <= 1) SiS310Idle;\
MMIO_OUT32(ivideo->mmio_vbase, COMMAND_READY, ivideo->CommandReg); \
MMIO_OUT32(ivideo->mmio_vbase, FIRE_TRIGGER, 0); \
CmdQueLen -= 2;
int sisfb_initaccel(
struct sis_video_info *ivideo);
void sisfb_syncaccel(
struct sis_video_info *ivideo);
int fbcon_sis_sync(
struct fb_info *info);
void fbcon_sis_fillrect(
struct fb_info *info,
const struct fb_fillrect *rect);
void fbcon_sis_copyarea(
struct fb_info *info,
const struct fb_copyarea *area);
#endif
