1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * SiS 300/540/630[S]/730[S],
4 * SiS 315[E|PRO]/550/[M]650/651/[M]661[F|M]X/740/[M]741[GX]/330/[M]760[GX],
5 * XGI V3XT/V5/V8, Z7
6 * frame buffer driver for Linux kernels >= 2.4.14 and >=2.6.3
7 *
8 * 2D acceleration part
9 *
10 * Based on the X driver's sis300_accel.h which is
11 * Copyright (C) 2001-2004 by Thomas Winischhofer, Vienna, Austria
12 * and sis310_accel.h which is
13 * Copyright (C) 2001-2004 by Thomas Winischhofer, Vienna, Austria
14 *
15 * Author: Thomas Winischhofer <thomas@winischhofer.net>:
16 * (see http://www.winischhofer.net/
17 * for more information and updates)
18 */
19
20#ifndef _SISFB_ACCEL_H
21#define _SISFB_ACCEL_H
22
23/* Guard accelerator accesses with spin_lock_irqsave? Works well without. */
24#undef SISFB_USE_SPINLOCKS
25
26#ifdef SISFB_USE_SPINLOCKS
27#include <linux/spinlock.h>
28#define CRITBEGIN spin_lock_irqsave(&ivideo->lockaccel, critflags);
29#define CRITEND spin_unlock_irqrestore(&ivideo->lockaccel, critflags);
30#define CRITFLAGS unsigned long critflags;
31#else
32#define CRITBEGIN
33#define CRITEND
34#define CRITFLAGS
35#endif
36
37/* Definitions for the SIS engine communication. */
38
39#define PATREGSIZE 384 /* Pattern register size. 384 bytes @ 0x8300 */
40#define BR(x) (0x8200 | (x) << 2)
41#define PBR(x) (0x8300 | (x) << 2)
42
43/* SiS300 engine commands */
44#define BITBLT 0x00000000 /* Blit */
45#define COLOREXP 0x00000001 /* Color expand */
46#define ENCOLOREXP 0x00000002 /* Enhanced color expand */
47#define MULTIPLE_SCANLINE 0x00000003 /* ? */
48#define LINE 0x00000004 /* Draw line */
49#define TRAPAZOID_FILL 0x00000005 /* Fill trapezoid */
50#define TRANSPARENT_BITBLT 0x00000006 /* Transparent Blit */
51
52/* Additional engine commands for 315 */
53#define ALPHA_BLEND 0x00000007 /* Alpha blend ? */
54#define A3D_FUNCTION 0x00000008 /* 3D command ? */
55#define CLEAR_Z_BUFFER 0x00000009 /* ? */
56#define GRADIENT_FILL 0x0000000A /* Gradient fill */
57
58/* source select */
59#define SRCVIDEO 0x00000000 /* source is video RAM */
60#define SRCSYSTEM 0x00000010 /* source is system memory */
61#define SRCCPUBLITBUF SRCSYSTEM /* source is CPU-driven BitBuffer (for color expand) */
62#define SRCAGP 0x00000020 /* source is AGP memory (?) */
63
64/* Pattern flags */
65#define PATFG 0x00000000 /* foreground color */
66#define PATPATREG 0x00000040 /* pattern in pattern buffer (0x8300) */
67#define PATMONO 0x00000080 /* mono pattern */
68
69/* blitting direction (300 series only) */
70#define X_INC 0x00010000
71#define X_DEC 0x00000000
72#define Y_INC 0x00020000
73#define Y_DEC 0x00000000
74
75/* Clipping flags */
76#define NOCLIP 0x00000000
77#define NOMERGECLIP 0x04000000
78#define CLIPENABLE 0x00040000
79#define CLIPWITHOUTMERGE 0x04040000
80
81/* Transparency */
82#define OPAQUE 0x00000000
83#define TRANSPARENT 0x00100000
84
85/* ? */
86#define DSTAGP 0x02000000
87#define DSTVIDEO 0x02000000
88
89/* Subfunctions for Color/Enhanced Color Expansion (315 only) */
90#define COLOR_TO_MONO 0x00100000
91#define AA_TEXT 0x00200000
92
93/* Some general registers for 315 series */
94#define SRC_ADDR 0x8200
95#define SRC_PITCH 0x8204
96#define AGP_BASE 0x8206 /* color-depth dependent value */
97#define SRC_Y 0x8208
98#define SRC_X 0x820A
99#define DST_Y 0x820C
100#define DST_X 0x820E
101#define DST_ADDR 0x8210
102#define DST_PITCH 0x8214
103#define DST_HEIGHT 0x8216
104#define RECT_WIDTH 0x8218
105#define RECT_HEIGHT 0x821A
106#define PAT_FGCOLOR 0x821C
107#define PAT_BGCOLOR 0x8220
108#define SRC_FGCOLOR 0x8224
109#define SRC_BGCOLOR 0x8228
110#define MONO_MASK 0x822C
111#define LEFT_CLIP 0x8234
112#define TOP_CLIP 0x8236
113#define RIGHT_CLIP 0x8238
114#define BOTTOM_CLIP 0x823A
115#define COMMAND_READY 0x823C
116#define FIRE_TRIGGER 0x8240
117
118#define PATTERN_REG 0x8300 /* 384 bytes pattern buffer */
119
120/* Transparent bitblit registers */
121#define TRANS_DST_KEY_HIGH PAT_FGCOLOR
122#define TRANS_DST_KEY_LOW PAT_BGCOLOR
123#define TRANS_SRC_KEY_HIGH SRC_FGCOLOR
124#define TRANS_SRC_KEY_LOW SRC_BGCOLOR
125
126/* Store queue length in par */
127#define CmdQueLen ivideo->cmdqueuelength
128
129/* ------------- SiS 300 series -------------- */
130
131/* BR(16) (0x8240):
132
133 bit 31 2D engine: 1 is idle,
134 bit 30 3D engine: 1 is idle,
135 bit 29 Command queue: 1 is empty
136 bits 28:24: Current CPU driven BitBlt buffer stage bit[4:0]
137 bits 15:0: Current command queue length
138
139*/
140
141#define SiS300Idle \
142 { \
143 while((MMIO_IN16(ivideo->mmio_vbase, BR(16)+2) & 0xE000) != 0xE000){} \
144 while((MMIO_IN16(ivideo->mmio_vbase, BR(16)+2) & 0xE000) != 0xE000){} \
145 while((MMIO_IN16(ivideo->mmio_vbase, BR(16)+2) & 0xE000) != 0xE000){} \
146 CmdQueLen = MMIO_IN16(ivideo->mmio_vbase, 0x8240); \
147 }
148/* (do three times, because 2D engine seems quite unsure about whether or not it's idle) */
149
150#define SiS300SetupSRCBase(base) \
151 if(CmdQueLen <= 0) SiS300Idle;\
152 MMIO_OUT32(ivideo->mmio_vbase, BR(0), base);\
153 CmdQueLen--;
154
155#define SiS300SetupSRCPitch(pitch) \
156 if(CmdQueLen <= 0) SiS300Idle;\
157 MMIO_OUT16(ivideo->mmio_vbase, BR(1), pitch);\
158 CmdQueLen--;
159
160#define SiS300SetupSRCXY(x,y) \
161 if(CmdQueLen <= 0) SiS300Idle;\
162 MMIO_OUT32(ivideo->mmio_vbase, BR(2), (x)<<16 | (y) );\
163 CmdQueLen--;
164
165#define SiS300SetupDSTBase(base) \
166 if(CmdQueLen <= 0) SiS300Idle;\
167 MMIO_OUT32(ivideo->mmio_vbase, BR(4), base);\
168 CmdQueLen--;
169
170#define SiS300SetupDSTXY(x,y) \
171 if(CmdQueLen <= 0) SiS300Idle;\
172 MMIO_OUT32(ivideo->mmio_vbase, BR(3), (x)<<16 | (y) );\
173 CmdQueLen--;
174
175#define SiS300SetupDSTRect(x,y) \
176 if(CmdQueLen <= 0) SiS300Idle;\
177 MMIO_OUT32(ivideo->mmio_vbase, BR(5), (y)<<16 | (x) );\
178 CmdQueLen--;
179
180#define SiS300SetupDSTColorDepth(bpp) \
181 if(CmdQueLen <= 0) SiS300Idle;\
182 MMIO_OUT16(ivideo->mmio_vbase, BR(1)+2, bpp);\
183 CmdQueLen--;
184
185#define SiS300SetupRect(w,h) \
186 if(CmdQueLen <= 0) SiS300Idle;\
187 MMIO_OUT32(ivideo->mmio_vbase, BR(6), (h)<<16 | (w) );\
188 CmdQueLen--;
189
190#define SiS300SetupPATFG(color) \
191 if(CmdQueLen <= 0) SiS300Idle;\
192 MMIO_OUT32(ivideo->mmio_vbase, BR(7), color);\
193 CmdQueLen--;
194
195#define SiS300SetupPATBG(color) \
196 if(CmdQueLen <= 0) SiS300Idle;\
197 MMIO_OUT32(ivideo->mmio_vbase, BR(8), color);\
198 CmdQueLen--;
199
200#define SiS300SetupSRCFG(color) \
201 if(CmdQueLen <= 0) SiS300Idle;\
202 MMIO_OUT32(ivideo->mmio_vbase, BR(9), color);\
203 CmdQueLen--;
204
205#define SiS300SetupSRCBG(color) \
206 if(CmdQueLen <= 0) SiS300Idle;\
207 MMIO_OUT32(ivideo->mmio_vbase, BR(10), color);\
208 CmdQueLen--;
209
210/* 0x8224 src colorkey high */
211/* 0x8228 src colorkey low */
212/* 0x821c dest colorkey high */
213/* 0x8220 dest colorkey low */
214#define SiS300SetupSRCTrans(color) \
215 if(CmdQueLen <= 1) SiS300Idle;\
216 MMIO_OUT32(ivideo->mmio_vbase, 0x8224, color);\
217 MMIO_OUT32(ivideo->mmio_vbase, 0x8228, color);\
218 CmdQueLen -= 2;
219
220#define SiS300SetupDSTTrans(color) \
221 if(CmdQueLen <= 1) SiS300Idle;\
222 MMIO_OUT32(ivideo->mmio_vbase, 0x821C, color); \
223 MMIO_OUT32(ivideo->mmio_vbase, 0x8220, color); \
224 CmdQueLen -= 2;
225
226#define SiS300SetupMONOPAT(p0,p1) \
227 if(CmdQueLen <= 1) SiS300Idle;\
228 MMIO_OUT32(ivideo->mmio_vbase, BR(11), p0);\
229 MMIO_OUT32(ivideo->mmio_vbase, BR(12), p1);\
230 CmdQueLen -= 2;
231
232#define SiS300SetupClipLT(left,top) \
233 if(CmdQueLen <= 0) SiS300Idle;\
234 MMIO_OUT32(ivideo->mmio_vbase, BR(13), ((left) & 0xFFFF) | (top)<<16 );\
235 CmdQueLen--;
236
237#define SiS300SetupClipRB(right,bottom) \
238 if(CmdQueLen <= 0) SiS300Idle;\
239 MMIO_OUT32(ivideo->mmio_vbase, BR(14), ((right) & 0xFFFF) | (bottom)<<16 );\
240 CmdQueLen--;
241
242/* General */
243#define SiS300SetupROP(rop) \
244 ivideo->CommandReg = (rop) << 8;
245
246#define SiS300SetupCMDFlag(flags) \
247 ivideo->CommandReg |= (flags);
248
249#define SiS300DoCMD \
250 if(CmdQueLen <= 1) SiS300Idle;\
251 MMIO_OUT32(ivideo->mmio_vbase, BR(15), ivideo->CommandReg); \
252 MMIO_OUT32(ivideo->mmio_vbase, BR(16), 0);\
253 CmdQueLen -= 2;
254
255/* -------------- SiS 315/330 series --------------- */
256
257/* Q_STATUS:
258 bit 31 = 1: All engines idle and all queues empty
259 bit 30 = 1: Hardware Queue (=HW CQ, 2D queue, 3D queue) empty
260 bit 29 = 1: 2D engine is idle
261 bit 28 = 1: 3D engine is idle
262 bit 27 = 1: HW command queue empty
263 bit 26 = 1: 2D queue empty
264 bit 25 = 1: 3D queue empty
265 bit 24 = 1: SW command queue empty
266 bits 23:16: 2D counter 3
267 bits 15:8: 2D counter 2
268 bits 7:0: 2D counter 1
269*/
270
271#define SiS310Idle \
272 { \
273 while( (MMIO_IN16(ivideo->mmio_vbase, Q_STATUS+2) & 0x8000) != 0x8000){} \
274 while( (MMIO_IN16(ivideo->mmio_vbase, Q_STATUS+2) & 0x8000) != 0x8000){} \
275 while( (MMIO_IN16(ivideo->mmio_vbase, Q_STATUS+2) & 0x8000) != 0x8000){} \
276 while( (MMIO_IN16(ivideo->mmio_vbase, Q_STATUS+2) & 0x8000) != 0x8000){} \
277 CmdQueLen = 0; \
278 }
279
280#define SiS310SetupSRCBase(base) \
281 if(CmdQueLen <= 0) SiS310Idle;\
282 MMIO_OUT32(ivideo->mmio_vbase, SRC_ADDR, base);\
283 CmdQueLen--;
284
285#define SiS310SetupSRCPitch(pitch) \
286 if(CmdQueLen <= 0) SiS310Idle;\
287 MMIO_OUT16(ivideo->mmio_vbase, SRC_PITCH, pitch);\
288 CmdQueLen--;
289
290#define SiS310SetupSRCXY(x,y) \
291 if(CmdQueLen <= 0) SiS310Idle;\
292 MMIO_OUT32(ivideo->mmio_vbase, SRC_Y, (x)<<16 | (y) );\
293 CmdQueLen--;
294
295#define SiS310SetupDSTBase(base) \
296 if(CmdQueLen <= 0) SiS310Idle;\
297 MMIO_OUT32(ivideo->mmio_vbase, DST_ADDR, base);\
298 CmdQueLen--;
299
300#define SiS310SetupDSTXY(x,y) \
301 if(CmdQueLen <= 0) SiS310Idle;\
302 MMIO_OUT32(ivideo->mmio_vbase, DST_Y, (x)<<16 | (y) );\
303 CmdQueLen--;
304
305#define SiS310SetupDSTRect(x,y) \
306 if(CmdQueLen <= 0) SiS310Idle;\
307 MMIO_OUT32(ivideo->mmio_vbase, DST_PITCH, (y)<<16 | (x) );\
308 CmdQueLen--;
309
310#define SiS310SetupDSTColorDepth(bpp) \
311 if(CmdQueLen <= 0) SiS310Idle;\
312 MMIO_OUT16(ivideo->mmio_vbase, AGP_BASE, bpp);\
313 CmdQueLen--;
314
315#define SiS310SetupRect(w,h) \
316 if(CmdQueLen <= 0) SiS310Idle;\
317 MMIO_OUT32(ivideo->mmio_vbase, RECT_WIDTH, (h)<<16 | (w) );\
318 CmdQueLen--;
319
320#define SiS310SetupPATFG(color) \
321 if(CmdQueLen <= 0) SiS310Idle;\
322 MMIO_OUT32(ivideo->mmio_vbase, PAT_FGCOLOR, color);\
323 CmdQueLen--;
324
325#define SiS310SetupPATBG(color) \
326 if(CmdQueLen <= 0) SiS310Idle;\
327 MMIO_OUT32(ivideo->mmio_vbase, PAT_BGCOLOR, color);\
328 CmdQueLen--;
329
330#define SiS310SetupSRCFG(color) \
331 if(CmdQueLen <= 0) SiS310Idle;\
332 MMIO_OUT32(ivideo->mmio_vbase, SRC_FGCOLOR, color);\
333 CmdQueLen--;
334
335#define SiS310SetupSRCBG(color) \
336 if(CmdQueLen <= 0) SiS310Idle;\
337 MMIO_OUT32(ivideo->mmio_vbase, SRC_BGCOLOR, color);\
338 CmdQueLen--;
339
340#define SiS310SetupSRCTrans(color) \
341 if(CmdQueLen <= 1) SiS310Idle;\
342 MMIO_OUT32(ivideo->mmio_vbase, TRANS_SRC_KEY_HIGH, color);\
343 MMIO_OUT32(ivideo->mmio_vbase, TRANS_SRC_KEY_LOW, color);\
344 CmdQueLen -= 2;
345
346#define SiS310SetupDSTTrans(color) \
347 if(CmdQueLen <= 1) SiS310Idle;\
348 MMIO_OUT32(ivideo->mmio_vbase, TRANS_DST_KEY_HIGH, color); \
349 MMIO_OUT32(ivideo->mmio_vbase, TRANS_DST_KEY_LOW, color); \
350 CmdQueLen -= 2;
351
352#define SiS310SetupMONOPAT(p0,p1) \
353 if(CmdQueLen <= 1) SiS310Idle;\
354 MMIO_OUT32(ivideo->mmio_vbase, MONO_MASK, p0);\
355 MMIO_OUT32(ivideo->mmio_vbase, MONO_MASK+4, p1);\
356 CmdQueLen -= 2;
357
358#define SiS310SetupClipLT(left,top) \
359 if(CmdQueLen <= 0) SiS310Idle;\
360 MMIO_OUT32(ivideo->mmio_vbase, LEFT_CLIP, ((left) & 0xFFFF) | (top)<<16 );\
361 CmdQueLen--;
362
363#define SiS310SetupClipRB(right,bottom) \
364 if(CmdQueLen <= 0) SiS310Idle;\
365 MMIO_OUT32(ivideo->mmio_vbase, RIGHT_CLIP, ((right) & 0xFFFF) | (bottom)<<16 );\
366 CmdQueLen--;
367
368#define SiS310SetupROP(rop) \
369 ivideo->CommandReg = (rop) << 8;
370
371#define SiS310SetupCMDFlag(flags) \
372 ivideo->CommandReg |= (flags);
373
374#define SiS310DoCMD \
375 if(CmdQueLen <= 1) SiS310Idle;\
376 MMIO_OUT32(ivideo->mmio_vbase, COMMAND_READY, ivideo->CommandReg); \
377 MMIO_OUT32(ivideo->mmio_vbase, FIRE_TRIGGER, 0); \
378 CmdQueLen -= 2;
379
380int sisfb_initaccel(struct sis_video_info *ivideo);
381void sisfb_syncaccel(struct sis_video_info *ivideo);
382
383int fbcon_sis_sync(struct fb_info *info);
384void fbcon_sis_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
385void fbcon_sis_copyarea(struct fb_info *info, const struct fb_copyarea *area);
386
387#endif
388

source code of linux/drivers/video/fbdev/sis/sis_accel.h