/drivers/video/sis/sis_accel.h
C++ Header | 400 lines | 258 code | 67 blank | 75 comment | 43 complexity | f8a844601f732f634466d4521341e5d7 MD5 | raw file
Possible License(s): GPL-2.0, LGPL-2.0, AGPL-1.0
1/*
2 * SiS 300/540/630[S]/730[S],
3 * SiS 315[E|PRO]/550/[M]650/651/[M]661[F|M]X/740/[M]741[GX]/330/[M]760[GX],
4 * XGI V3XT/V5/V8, Z7
5 * frame buffer driver for Linux kernels >= 2.4.14 and >=2.6.3
6 *
7 * 2D acceleration part
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the named License,
12 * or any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA
22 *
23 * Based on the X driver's sis300_accel.h which is
24 * Copyright (C) 2001-2004 by Thomas Winischhofer, Vienna, Austria
25 * and sis310_accel.h which is
26 * Copyright (C) 2001-2004 by Thomas Winischhofer, Vienna, Austria
27 *
28 * Author: Thomas Winischhofer <thomas@winischhofer.net>:
29 * (see http://www.winischhofer.net/
30 * for more information and updates)
31 */
32
33#ifndef _SISFB_ACCEL_H
34#define _SISFB_ACCEL_H
35
36/* Guard accelerator accesses with spin_lock_irqsave? Works well without. */
37#undef SISFB_USE_SPINLOCKS
38
39#ifdef SISFB_USE_SPINLOCKS
40#include <linux/spinlock.h>
41#define CRITBEGIN spin_lock_irqsave(&ivideo->lockaccel, critflags);
42#define CRITEND spin_unlock_irqrestore(&ivideo->lockaccel, critflags);
43#define CRITFLAGS unsigned long critflags;
44#else
45#define CRITBEGIN
46#define CRITEND
47#define CRITFLAGS
48#endif
49
50/* Definitions for the SIS engine communication. */
51
52#define PATREGSIZE 384 /* Pattern register size. 384 bytes @ 0x8300 */
53#define BR(x) (0x8200 | (x) << 2)
54#define PBR(x) (0x8300 | (x) << 2)
55
56/* SiS300 engine commands */
57#define BITBLT 0x00000000 /* Blit */
58#define COLOREXP 0x00000001 /* Color expand */
59#define ENCOLOREXP 0x00000002 /* Enhanced color expand */
60#define MULTIPLE_SCANLINE 0x00000003 /* ? */
61#define LINE 0x00000004 /* Draw line */
62#define TRAPAZOID_FILL 0x00000005 /* Fill trapezoid */
63#define TRANSPARENT_BITBLT 0x00000006 /* Transparent Blit */
64
65/* Additional engine commands for 315 */
66#define ALPHA_BLEND 0x00000007 /* Alpha blend ? */
67#define A3D_FUNCTION 0x00000008 /* 3D command ? */
68#define CLEAR_Z_BUFFER 0x00000009 /* ? */
69#define GRADIENT_FILL 0x0000000A /* Gradient fill */
70
71/* source select */
72#define SRCVIDEO 0x00000000 /* source is video RAM */
73#define SRCSYSTEM 0x00000010 /* source is system memory */
74#define SRCCPUBLITBUF SRCSYSTEM /* source is CPU-driven BitBuffer (for color expand) */
75#define SRCAGP 0x00000020 /* source is AGP memory (?) */
76
77/* Pattern flags */
78#define PATFG 0x00000000 /* foreground color */
79#define PATPATREG 0x00000040 /* pattern in pattern buffer (0x8300) */
80#define PATMONO 0x00000080 /* mono pattern */
81
82/* blitting direction (300 series only) */
83#define X_INC 0x00010000
84#define X_DEC 0x00000000
85#define Y_INC 0x00020000
86#define Y_DEC 0x00000000
87
88/* Clipping flags */
89#define NOCLIP 0x00000000
90#define NOMERGECLIP 0x04000000
91#define CLIPENABLE 0x00040000
92#define CLIPWITHOUTMERGE 0x04040000
93
94/* Transparency */
95#define OPAQUE 0x00000000
96#define TRANSPARENT 0x00100000
97
98/* ? */
99#define DSTAGP 0x02000000
100#define DSTVIDEO 0x02000000
101
102/* Subfunctions for Color/Enhanced Color Expansion (315 only) */
103#define COLOR_TO_MONO 0x00100000
104#define AA_TEXT 0x00200000
105
106/* Some general registers for 315 series */
107#define SRC_ADDR 0x8200
108#define SRC_PITCH 0x8204
109#define AGP_BASE 0x8206 /* color-depth dependent value */
110#define SRC_Y 0x8208
111#define SRC_X 0x820A
112#define DST_Y 0x820C
113#define DST_X 0x820E
114#define DST_ADDR 0x8210
115#define DST_PITCH 0x8214
116#define DST_HEIGHT 0x8216
117#define RECT_WIDTH 0x8218
118#define RECT_HEIGHT 0x821A
119#define PAT_FGCOLOR 0x821C
120#define PAT_BGCOLOR 0x8220
121#define SRC_FGCOLOR 0x8224
122#define SRC_BGCOLOR 0x8228
123#define MONO_MASK 0x822C
124#define LEFT_CLIP 0x8234
125#define TOP_CLIP 0x8236
126#define RIGHT_CLIP 0x8238
127#define BOTTOM_CLIP 0x823A
128#define COMMAND_READY 0x823C
129#define FIRE_TRIGGER 0x8240
130
131#define PATTERN_REG 0x8300 /* 384 bytes pattern buffer */
132
133/* Transparent bitblit registers */
134#define TRANS_DST_KEY_HIGH PAT_FGCOLOR
135#define TRANS_DST_KEY_LOW PAT_BGCOLOR
136#define TRANS_SRC_KEY_HIGH SRC_FGCOLOR
137#define TRANS_SRC_KEY_LOW SRC_BGCOLOR
138
139/* Store queue length in par */
140#define CmdQueLen ivideo->cmdqueuelength
141
142/* ------------- SiS 300 series -------------- */
143
144/* BR(16) (0x8240):
145
146 bit 31 2D engine: 1 is idle,
147 bit 30 3D engine: 1 is idle,
148 bit 29 Command queue: 1 is empty
149 bits 28:24: Current CPU driven BitBlt buffer stage bit[4:0]
150 bits 15:0: Current command queue length
151
152*/
153
154#define SiS300Idle \
155 { \
156 while((MMIO_IN16(ivideo->mmio_vbase, BR(16)+2) & 0xE000) != 0xE000){}; \
157 while((MMIO_IN16(ivideo->mmio_vbase, BR(16)+2) & 0xE000) != 0xE000){}; \
158 while((MMIO_IN16(ivideo->mmio_vbase, BR(16)+2) & 0xE000) != 0xE000){}; \
159 CmdQueLen = MMIO_IN16(ivideo->mmio_vbase, 0x8240); \
160 }
161/* (do three times, because 2D engine seems quite unsure about whether or not it's idle) */
162
163#define SiS300SetupSRCBase(base) \
164 if(CmdQueLen <= 0) SiS300Idle;\
165 MMIO_OUT32(ivideo->mmio_vbase, BR(0), base);\
166 CmdQueLen--;
167
168#define SiS300SetupSRCPitch(pitch) \
169 if(CmdQueLen <= 0) SiS300Idle;\
170 MMIO_OUT16(ivideo->mmio_vbase, BR(1), pitch);\
171 CmdQueLen--;
172
173#define SiS300SetupSRCXY(x,y) \
174 if(CmdQueLen <= 0) SiS300Idle;\
175 MMIO_OUT32(ivideo->mmio_vbase, BR(2), (x)<<16 | (y) );\
176 CmdQueLen--;
177
178#define SiS300SetupDSTBase(base) \
179 if(CmdQueLen <= 0) SiS300Idle;\
180 MMIO_OUT32(ivideo->mmio_vbase, BR(4), base);\
181 CmdQueLen--;
182
183#define SiS300SetupDSTXY(x,y) \
184 if(CmdQueLen <= 0) SiS300Idle;\
185 MMIO_OUT32(ivideo->mmio_vbase, BR(3), (x)<<16 | (y) );\
186 CmdQueLen--;
187
188#define SiS300SetupDSTRect(x,y) \
189 if(CmdQueLen <= 0) SiS300Idle;\
190 MMIO_OUT32(ivideo->mmio_vbase, BR(5), (y)<<16 | (x) );\
191 CmdQueLen--;
192
193#define SiS300SetupDSTColorDepth(bpp) \
194 if(CmdQueLen <= 0) SiS300Idle;\
195 MMIO_OUT16(ivideo->mmio_vbase, BR(1)+2, bpp);\
196 CmdQueLen--;
197
198#define SiS300SetupRect(w,h) \
199 if(CmdQueLen <= 0) SiS300Idle;\
200 MMIO_OUT32(ivideo->mmio_vbase, BR(6), (h)<<16 | (w) );\
201 CmdQueLen--;
202
203#define SiS300SetupPATFG(color) \
204 if(CmdQueLen <= 0) SiS300Idle;\
205 MMIO_OUT32(ivideo->mmio_vbase, BR(7), color);\
206 CmdQueLen--;
207
208#define SiS300SetupPATBG(color) \
209 if(CmdQueLen <= 0) SiS300Idle;\
210 MMIO_OUT32(ivideo->mmio_vbase, BR(8), color);\
211 CmdQueLen--;
212
213#define SiS300SetupSRCFG(color) \
214 if(CmdQueLen <= 0) SiS300Idle;\
215 MMIO_OUT32(ivideo->mmio_vbase, BR(9), color);\
216 CmdQueLen--;
217
218#define SiS300SetupSRCBG(color) \
219 if(CmdQueLen <= 0) SiS300Idle;\
220 MMIO_OUT32(ivideo->mmio_vbase, BR(10), color);\
221 CmdQueLen--;
222
223/* 0x8224 src colorkey high */
224/* 0x8228 src colorkey low */
225/* 0x821c dest colorkey high */
226/* 0x8220 dest colorkey low */
227#define SiS300SetupSRCTrans(color) \
228 if(CmdQueLen <= 1) SiS300Idle;\
229 MMIO_OUT32(ivideo->mmio_vbase, 0x8224, color);\
230 MMIO_OUT32(ivideo->mmio_vbase, 0x8228, color);\
231 CmdQueLen -= 2;
232
233#define SiS300SetupDSTTrans(color) \
234 if(CmdQueLen <= 1) SiS300Idle;\
235 MMIO_OUT32(ivideo->mmio_vbase, 0x821C, color); \
236 MMIO_OUT32(ivideo->mmio_vbase, 0x8220, color); \
237 CmdQueLen -= 2;
238
239#define SiS300SetupMONOPAT(p0,p1) \
240 if(CmdQueLen <= 1) SiS300Idle;\
241 MMIO_OUT32(ivideo->mmio_vbase, BR(11), p0);\
242 MMIO_OUT32(ivideo->mmio_vbase, BR(12), p1);\
243 CmdQueLen -= 2;
244
245#define SiS300SetupClipLT(left,top) \
246 if(CmdQueLen <= 0) SiS300Idle;\
247 MMIO_OUT32(ivideo->mmio_vbase, BR(13), ((left) & 0xFFFF) | (top)<<16 );\
248 CmdQueLen--;
249
250#define SiS300SetupClipRB(right,bottom) \
251 if(CmdQueLen <= 0) SiS300Idle;\
252 MMIO_OUT32(ivideo->mmio_vbase, BR(14), ((right) & 0xFFFF) | (bottom)<<16 );\
253 CmdQueLen--;
254
255/* General */
256#define SiS300SetupROP(rop) \
257 ivideo->CommandReg = (rop) << 8;
258
259#define SiS300SetupCMDFlag(flags) \
260 ivideo->CommandReg |= (flags);
261
262#define SiS300DoCMD \
263 if(CmdQueLen <= 1) SiS300Idle;\
264 MMIO_OUT32(ivideo->mmio_vbase, BR(15), ivideo->CommandReg); \
265 MMIO_OUT32(ivideo->mmio_vbase, BR(16), 0);\
266 CmdQueLen -= 2;
267
268/* -------------- SiS 315/330 series --------------- */
269
270/* Q_STATUS:
271 bit 31 = 1: All engines idle and all queues empty
272 bit 30 = 1: Hardware Queue (=HW CQ, 2D queue, 3D queue) empty
273 bit 29 = 1: 2D engine is idle
274 bit 28 = 1: 3D engine is idle
275 bit 27 = 1: HW command queue empty
276 bit 26 = 1: 2D queue empty
277 bit 25 = 1: 3D queue empty
278 bit 24 = 1: SW command queue empty
279 bits 23:16: 2D counter 3
280 bits 15:8: 2D counter 2
281 bits 7:0: 2D counter 1
282*/
283
284#define SiS310Idle \
285 { \
286 while( (MMIO_IN16(ivideo->mmio_vbase, Q_STATUS+2) & 0x8000) != 0x8000){}; \
287 while( (MMIO_IN16(ivideo->mmio_vbase, Q_STATUS+2) & 0x8000) != 0x8000){}; \
288 while( (MMIO_IN16(ivideo->mmio_vbase, Q_STATUS+2) & 0x8000) != 0x8000){}; \
289 while( (MMIO_IN16(ivideo->mmio_vbase, Q_STATUS+2) & 0x8000) != 0x8000){}; \
290 CmdQueLen = 0; \
291 }
292
293#define SiS310SetupSRCBase(base) \
294 if(CmdQueLen <= 0) SiS310Idle;\
295 MMIO_OUT32(ivideo->mmio_vbase, SRC_ADDR, base);\
296 CmdQueLen--;
297
298#define SiS310SetupSRCPitch(pitch) \
299 if(CmdQueLen <= 0) SiS310Idle;\
300 MMIO_OUT16(ivideo->mmio_vbase, SRC_PITCH, pitch);\
301 CmdQueLen--;
302
303#define SiS310SetupSRCXY(x,y) \
304 if(CmdQueLen <= 0) SiS310Idle;\
305 MMIO_OUT32(ivideo->mmio_vbase, SRC_Y, (x)<<16 | (y) );\
306 CmdQueLen--;
307
308#define SiS310SetupDSTBase(base) \
309 if(CmdQueLen <= 0) SiS310Idle;\
310 MMIO_OUT32(ivideo->mmio_vbase, DST_ADDR, base);\
311 CmdQueLen--;
312
313#define SiS310SetupDSTXY(x,y) \
314 if(CmdQueLen <= 0) SiS310Idle;\
315 MMIO_OUT32(ivideo->mmio_vbase, DST_Y, (x)<<16 | (y) );\
316 CmdQueLen--;
317
318#define SiS310SetupDSTRect(x,y) \
319 if(CmdQueLen <= 0) SiS310Idle;\
320 MMIO_OUT32(ivideo->mmio_vbase, DST_PITCH, (y)<<16 | (x) );\
321 CmdQueLen--;
322
323#define SiS310SetupDSTColorDepth(bpp) \
324 if(CmdQueLen <= 0) SiS310Idle;\
325 MMIO_OUT16(ivideo->mmio_vbase, AGP_BASE, bpp);\
326 CmdQueLen--;
327
328#define SiS310SetupRect(w,h) \
329 if(CmdQueLen <= 0) SiS310Idle;\
330 MMIO_OUT32(ivideo->mmio_vbase, RECT_WIDTH, (h)<<16 | (w) );\
331 CmdQueLen--;
332
333#define SiS310SetupPATFG(color) \
334 if(CmdQueLen <= 0) SiS310Idle;\
335 MMIO_OUT32(ivideo->mmio_vbase, PAT_FGCOLOR, color);\
336 CmdQueLen--;
337
338#define SiS310SetupPATBG(color) \
339 if(CmdQueLen <= 0) SiS310Idle;\
340 MMIO_OUT32(ivideo->mmio_vbase, PAT_BGCOLOR, color);\
341 CmdQueLen--;
342
343#define SiS310SetupSRCFG(color) \
344 if(CmdQueLen <= 0) SiS310Idle;\
345 MMIO_OUT32(ivideo->mmio_vbase, SRC_FGCOLOR, color);\
346 CmdQueLen--;
347
348#define SiS310SetupSRCBG(color) \
349 if(CmdQueLen <= 0) SiS310Idle;\
350 MMIO_OUT32(ivideo->mmio_vbase, SRC_BGCOLOR, color);\
351 CmdQueLen--;
352
353#define SiS310SetupSRCTrans(color) \
354 if(CmdQueLen <= 1) SiS310Idle;\
355 MMIO_OUT32(ivideo->mmio_vbase, TRANS_SRC_KEY_HIGH, color);\
356 MMIO_OUT32(ivideo->mmio_vbase, TRANS_SRC_KEY_LOW, color);\
357 CmdQueLen -= 2;
358
359#define SiS310SetupDSTTrans(color) \
360 if(CmdQueLen <= 1) SiS310Idle;\
361 MMIO_OUT32(ivideo->mmio_vbase, TRANS_DST_KEY_HIGH, color); \
362 MMIO_OUT32(ivideo->mmio_vbase, TRANS_DST_KEY_LOW, color); \
363 CmdQueLen -= 2;
364
365#define SiS310SetupMONOPAT(p0,p1) \
366 if(CmdQueLen <= 1) SiS310Idle;\
367 MMIO_OUT32(ivideo->mmio_vbase, MONO_MASK, p0);\
368 MMIO_OUT32(ivideo->mmio_vbase, MONO_MASK+4, p1);\
369 CmdQueLen -= 2;
370
371#define SiS310SetupClipLT(left,top) \
372 if(CmdQueLen <= 0) SiS310Idle;\
373 MMIO_OUT32(ivideo->mmio_vbase, LEFT_CLIP, ((left) & 0xFFFF) | (top)<<16 );\
374 CmdQueLen--;
375
376#define SiS310SetupClipRB(right,bottom) \
377 if(CmdQueLen <= 0) SiS310Idle;\
378 MMIO_OUT32(ivideo->mmio_vbase, RIGHT_CLIP, ((right) & 0xFFFF) | (bottom)<<16 );\
379 CmdQueLen--;
380
381#define SiS310SetupROP(rop) \
382 ivideo->CommandReg = (rop) << 8;
383
384#define SiS310SetupCMDFlag(flags) \
385 ivideo->CommandReg |= (flags);
386
387#define SiS310DoCMD \
388 if(CmdQueLen <= 1) SiS310Idle;\
389 MMIO_OUT32(ivideo->mmio_vbase, COMMAND_READY, ivideo->CommandReg); \
390 MMIO_OUT32(ivideo->mmio_vbase, FIRE_TRIGGER, 0); \
391 CmdQueLen -= 2;
392
393int sisfb_initaccel(struct sis_video_info *ivideo);
394void sisfb_syncaccel(struct sis_video_info *ivideo);
395
396int fbcon_sis_sync(struct fb_info *info);
397void fbcon_sis_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
398void fbcon_sis_copyarea(struct fb_info *info, const struct fb_copyarea *area);
399
400#endif