Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
544393fe TW |
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 | |
1da177e4 LT |
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 XFree86/X.org driver which is | |
544393fe | 24 | * Copyright (C) 2001-2005 by Thomas Winischhofer, Vienna, Austria |
1da177e4 LT |
25 | * |
26 | * Author: Thomas Winischhofer <thomas@winischhofer.net> | |
27 | * (see http://www.winischhofer.net/ | |
28 | * for more information and updates) | |
29 | */ | |
30 | ||
1da177e4 LT |
31 | #include <linux/module.h> |
32 | #include <linux/kernel.h> | |
1da177e4 | 33 | #include <linux/fb.h> |
1da177e4 | 34 | #include <linux/ioport.h> |
1da177e4 | 35 | #include <linux/types.h> |
1da177e4 LT |
36 | #include <asm/io.h> |
37 | ||
1da177e4 LT |
38 | #include "sis.h" |
39 | #include "sis_accel.h" | |
40 | ||
41 | static const u8 sisALUConv[] = | |
42 | { | |
43 | 0x00, /* dest = 0; 0, GXclear, 0 */ | |
44 | 0x88, /* dest &= src; DSa, GXand, 0x1 */ | |
45 | 0x44, /* dest = src & ~dest; SDna, GXandReverse, 0x2 */ | |
46 | 0xCC, /* dest = src; S, GXcopy, 0x3 */ | |
47 | 0x22, /* dest &= ~src; DSna, GXandInverted, 0x4 */ | |
48 | 0xAA, /* dest = dest; D, GXnoop, 0x5 */ | |
49 | 0x66, /* dest = ^src; DSx, GXxor, 0x6 */ | |
50 | 0xEE, /* dest |= src; DSo, GXor, 0x7 */ | |
51 | 0x11, /* dest = ~src & ~dest; DSon, GXnor, 0x8 */ | |
52 | 0x99, /* dest ^= ~src ; DSxn, GXequiv, 0x9 */ | |
53 | 0x55, /* dest = ~dest; Dn, GXInvert, 0xA */ | |
54 | 0xDD, /* dest = src|~dest ; SDno, GXorReverse, 0xB */ | |
55 | 0x33, /* dest = ~src; Sn, GXcopyInverted, 0xC */ | |
56 | 0xBB, /* dest |= ~src; DSno, GXorInverted, 0xD */ | |
57 | 0x77, /* dest = ~src|~dest; DSan, GXnand, 0xE */ | |
58 | 0xFF, /* dest = 0xFF; 1, GXset, 0xF */ | |
59 | }; | |
60 | /* same ROP but with Pattern as Source */ | |
61 | static const u8 sisPatALUConv[] = | |
62 | { | |
63 | 0x00, /* dest = 0; 0, GXclear, 0 */ | |
64 | 0xA0, /* dest &= src; DPa, GXand, 0x1 */ | |
65 | 0x50, /* dest = src & ~dest; PDna, GXandReverse, 0x2 */ | |
66 | 0xF0, /* dest = src; P, GXcopy, 0x3 */ | |
67 | 0x0A, /* dest &= ~src; DPna, GXandInverted, 0x4 */ | |
68 | 0xAA, /* dest = dest; D, GXnoop, 0x5 */ | |
69 | 0x5A, /* dest = ^src; DPx, GXxor, 0x6 */ | |
70 | 0xFA, /* dest |= src; DPo, GXor, 0x7 */ | |
71 | 0x05, /* dest = ~src & ~dest; DPon, GXnor, 0x8 */ | |
72 | 0xA5, /* dest ^= ~src ; DPxn, GXequiv, 0x9 */ | |
73 | 0x55, /* dest = ~dest; Dn, GXInvert, 0xA */ | |
74 | 0xF5, /* dest = src|~dest ; PDno, GXorReverse, 0xB */ | |
75 | 0x0F, /* dest = ~src; Pn, GXcopyInverted, 0xC */ | |
76 | 0xAF, /* dest |= ~src; DPno, GXorInverted, 0xD */ | |
77 | 0x5F, /* dest = ~src|~dest; DPan, GXnand, 0xE */ | |
78 | 0xFF, /* dest = 0xFF; 1, GXset, 0xF */ | |
79 | }; | |
80 | ||
1da177e4 LT |
81 | static const int myrops[] = { |
82 | 3, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3 | |
83 | }; | |
1da177e4 LT |
84 | |
85 | /* 300 series ----------------------------------------------------- */ | |
86 | #ifdef CONFIG_FB_SIS_300 | |
87 | static void | |
88 | SiS300Sync(struct sis_video_info *ivideo) | |
89 | { | |
90 | SiS300Idle | |
91 | } | |
92 | ||
93 | static void | |
94 | SiS300SetupForScreenToScreenCopy(struct sis_video_info *ivideo, int xdir, int ydir, | |
95 | int rop, int trans_color) | |
96 | { | |
97 | SiS300SetupDSTColorDepth(ivideo->DstColor); | |
98 | SiS300SetupSRCPitch(ivideo->video_linelength) | |
99 | SiS300SetupDSTRect(ivideo->video_linelength, 0xffff) | |
100 | ||
101 | if(trans_color != -1) { | |
102 | SiS300SetupROP(0x0A) | |
103 | SiS300SetupSRCTrans(trans_color) | |
104 | SiS300SetupCMDFlag(TRANSPARENT_BITBLT) | |
105 | } else { | |
106 | SiS300SetupROP(sisALUConv[rop]) | |
107 | } | |
108 | if(xdir > 0) { | |
109 | SiS300SetupCMDFlag(X_INC) | |
110 | } | |
111 | if(ydir > 0) { | |
112 | SiS300SetupCMDFlag(Y_INC) | |
113 | } | |
114 | } | |
115 | ||
116 | static void | |
117 | SiS300SubsequentScreenToScreenCopy(struct sis_video_info *ivideo, int src_x, | |
118 | int src_y, int dst_x, int dst_y, int width, int height) | |
119 | { | |
120 | u32 srcbase = 0, dstbase = 0; | |
121 | ||
122 | if(src_y >= 2048) { | |
123 | srcbase = ivideo->video_linelength * src_y; | |
124 | src_y = 0; | |
125 | } | |
126 | if(dst_y >= 2048) { | |
127 | dstbase = ivideo->video_linelength * dst_y; | |
128 | dst_y = 0; | |
129 | } | |
130 | ||
131 | SiS300SetupSRCBase(srcbase); | |
132 | SiS300SetupDSTBase(dstbase); | |
133 | ||
134 | if(!(ivideo->CommandReg & X_INC)) { | |
135 | src_x += width-1; | |
136 | dst_x += width-1; | |
137 | } | |
138 | if(!(ivideo->CommandReg & Y_INC)) { | |
139 | src_y += height-1; | |
140 | dst_y += height-1; | |
141 | } | |
142 | SiS300SetupRect(width, height) | |
143 | SiS300SetupSRCXY(src_x, src_y) | |
144 | SiS300SetupDSTXY(dst_x, dst_y) | |
145 | SiS300DoCMD | |
146 | } | |
147 | ||
148 | static void | |
149 | SiS300SetupForSolidFill(struct sis_video_info *ivideo, u32 color, int rop) | |
150 | { | |
151 | SiS300SetupPATFG(color) | |
152 | SiS300SetupDSTRect(ivideo->video_linelength, 0xffff) | |
153 | SiS300SetupDSTColorDepth(ivideo->DstColor); | |
154 | SiS300SetupROP(sisPatALUConv[rop]) | |
155 | SiS300SetupCMDFlag(PATFG) | |
156 | } | |
157 | ||
158 | static void | |
159 | SiS300SubsequentSolidFillRect(struct sis_video_info *ivideo, int x, int y, int w, int h) | |
160 | { | |
161 | u32 dstbase = 0; | |
162 | ||
163 | if(y >= 2048) { | |
164 | dstbase = ivideo->video_linelength * y; | |
165 | y = 0; | |
166 | } | |
167 | SiS300SetupDSTBase(dstbase) | |
168 | SiS300SetupDSTXY(x,y) | |
169 | SiS300SetupRect(w,h) | |
170 | SiS300SetupCMDFlag(X_INC | Y_INC | BITBLT) | |
171 | SiS300DoCMD | |
172 | } | |
173 | #endif | |
174 | ||
544393fe | 175 | /* 315/330/340 series ---------------------------------------------- */ |
1da177e4 LT |
176 | |
177 | #ifdef CONFIG_FB_SIS_315 | |
178 | static void | |
179 | SiS310Sync(struct sis_video_info *ivideo) | |
180 | { | |
181 | SiS310Idle | |
182 | } | |
183 | ||
184 | static void | |
185 | SiS310SetupForScreenToScreenCopy(struct sis_video_info *ivideo, int rop, int trans_color) | |
186 | { | |
187 | SiS310SetupDSTColorDepth(ivideo->DstColor); | |
188 | SiS310SetupSRCPitch(ivideo->video_linelength) | |
544393fe | 189 | SiS310SetupDSTRect(ivideo->video_linelength, 0x0fff) |
1da177e4 LT |
190 | if(trans_color != -1) { |
191 | SiS310SetupROP(0x0A) | |
192 | SiS310SetupSRCTrans(trans_color) | |
193 | SiS310SetupCMDFlag(TRANSPARENT_BITBLT) | |
194 | } else { | |
195 | SiS310SetupROP(sisALUConv[rop]) | |
196 | /* Set command - not needed, both 0 */ | |
197 | /* SiSSetupCMDFlag(BITBLT | SRCVIDEO) */ | |
198 | } | |
199 | SiS310SetupCMDFlag(ivideo->SiS310_AccelDepth) | |
544393fe | 200 | /* The chip is smart enough to know the direction */ |
1da177e4 LT |
201 | } |
202 | ||
203 | static void | |
204 | SiS310SubsequentScreenToScreenCopy(struct sis_video_info *ivideo, int src_x, int src_y, | |
205 | int dst_x, int dst_y, int width, int height) | |
206 | { | |
207 | u32 srcbase = 0, dstbase = 0; | |
208 | int mymin = min(src_y, dst_y); | |
209 | int mymax = max(src_y, dst_y); | |
544393fe | 210 | |
1da177e4 | 211 | /* Although the chip knows the direction to use |
544393fe | 212 | * if the source and destination areas overlap, |
1da177e4 LT |
213 | * that logic fails if we fiddle with the bitmap |
214 | * addresses. Therefore, we check if the source | |
544393fe TW |
215 | * and destination blitting areas overlap and |
216 | * adapt the bitmap addresses synchronously | |
1da177e4 | 217 | * if the coordinates exceed the valid range. |
544393fe | 218 | * The the areas do not overlap, we do our |
1da177e4 LT |
219 | * normal check. |
220 | */ | |
544393fe TW |
221 | if((mymax - mymin) < height) { |
222 | if((src_y >= 2048) || (dst_y >= 2048)) { | |
223 | srcbase = ivideo->video_linelength * mymin; | |
224 | dstbase = ivideo->video_linelength * mymin; | |
225 | src_y -= mymin; | |
226 | dst_y -= mymin; | |
227 | } | |
1da177e4 | 228 | } else { |
544393fe TW |
229 | if(src_y >= 2048) { |
230 | srcbase = ivideo->video_linelength * src_y; | |
231 | src_y = 0; | |
232 | } | |
233 | if(dst_y >= 2048) { | |
234 | dstbase = ivideo->video_linelength * dst_y; | |
235 | dst_y = 0; | |
236 | } | |
1da177e4 LT |
237 | } |
238 | ||
544393fe TW |
239 | srcbase += ivideo->video_offset; |
240 | dstbase += ivideo->video_offset; | |
241 | ||
1da177e4 LT |
242 | SiS310SetupSRCBase(srcbase); |
243 | SiS310SetupDSTBase(dstbase); | |
244 | SiS310SetupRect(width, height) | |
245 | SiS310SetupSRCXY(src_x, src_y) | |
246 | SiS310SetupDSTXY(dst_x, dst_y) | |
247 | SiS310DoCMD | |
248 | } | |
249 | ||
250 | static void | |
251 | SiS310SetupForSolidFill(struct sis_video_info *ivideo, u32 color, int rop) | |
252 | { | |
253 | SiS310SetupPATFG(color) | |
544393fe | 254 | SiS310SetupDSTRect(ivideo->video_linelength, 0x0fff) |
1da177e4 LT |
255 | SiS310SetupDSTColorDepth(ivideo->DstColor); |
256 | SiS310SetupROP(sisPatALUConv[rop]) | |
257 | SiS310SetupCMDFlag(PATFG | ivideo->SiS310_AccelDepth) | |
258 | } | |
259 | ||
260 | static void | |
261 | SiS310SubsequentSolidFillRect(struct sis_video_info *ivideo, int x, int y, int w, int h) | |
262 | { | |
263 | u32 dstbase = 0; | |
264 | ||
265 | if(y >= 2048) { | |
266 | dstbase = ivideo->video_linelength * y; | |
267 | y = 0; | |
268 | } | |
544393fe | 269 | dstbase += ivideo->video_offset; |
1da177e4 LT |
270 | SiS310SetupDSTBase(dstbase) |
271 | SiS310SetupDSTXY(x,y) | |
272 | SiS310SetupRect(w,h) | |
273 | SiS310SetupCMDFlag(BITBLT) | |
274 | SiS310DoCMD | |
275 | } | |
276 | #endif | |
277 | ||
278 | /* --------------------------------------------------------------------- */ | |
279 | ||
280 | /* The exported routines */ | |
281 | ||
282 | int sisfb_initaccel(struct sis_video_info *ivideo) | |
283 | { | |
284 | #ifdef SISFB_USE_SPINLOCKS | |
544393fe | 285 | spin_lock_init(&ivideo->lockaccel); |
1da177e4 | 286 | #endif |
544393fe | 287 | return 0; |
1da177e4 LT |
288 | } |
289 | ||
290 | void sisfb_syncaccel(struct sis_video_info *ivideo) | |
291 | { | |
544393fe | 292 | if(ivideo->sisvga_engine == SIS_300_VGA) { |
1da177e4 | 293 | #ifdef CONFIG_FB_SIS_300 |
544393fe | 294 | SiS300Sync(ivideo); |
1da177e4 | 295 | #endif |
544393fe | 296 | } else { |
1da177e4 | 297 | #ifdef CONFIG_FB_SIS_315 |
544393fe | 298 | SiS310Sync(ivideo); |
1da177e4 | 299 | #endif |
544393fe | 300 | } |
1da177e4 LT |
301 | } |
302 | ||
1da177e4 LT |
303 | int fbcon_sis_sync(struct fb_info *info) |
304 | { | |
544393fe TW |
305 | struct sis_video_info *ivideo = (struct sis_video_info *)info->par; |
306 | CRITFLAGS | |
1da177e4 | 307 | |
544393fe TW |
308 | if((!ivideo->accel) || (!ivideo->engineok)) |
309 | return 0; | |
1da177e4 | 310 | |
544393fe TW |
311 | CRITBEGIN |
312 | sisfb_syncaccel(ivideo); | |
313 | CRITEND | |
314 | ||
315 | return 0; | |
1da177e4 LT |
316 | } |
317 | ||
318 | void fbcon_sis_fillrect(struct fb_info *info, const struct fb_fillrect *rect) | |
319 | { | |
544393fe TW |
320 | struct sis_video_info *ivideo = (struct sis_video_info *)info->par; |
321 | u32 col = 0; | |
322 | u32 vxres = info->var.xres_virtual; | |
323 | u32 vyres = info->var.yres_virtual; | |
324 | int width, height; | |
325 | CRITFLAGS | |
326 | ||
327 | if(info->state != FBINFO_STATE_RUNNING) | |
328 | return; | |
329 | ||
330 | if((!ivideo->accel) || (!ivideo->engineok)) { | |
331 | cfb_fillrect(info, rect); | |
332 | return; | |
333 | } | |
334 | ||
335 | if(!rect->width || !rect->height || rect->dx >= vxres || rect->dy >= vyres) | |
336 | return; | |
337 | ||
338 | /* Clipping */ | |
339 | width = ((rect->dx + rect->width) > vxres) ? (vxres - rect->dx) : rect->width; | |
340 | height = ((rect->dy + rect->height) > vyres) ? (vyres - rect->dy) : rect->height; | |
341 | ||
342 | switch(info->var.bits_per_pixel) { | |
1da177e4 LT |
343 | case 8: col = rect->color; |
344 | break; | |
345 | case 16: | |
346 | case 32: col = ((u32 *)(info->pseudo_palette))[rect->color]; | |
347 | break; | |
544393fe | 348 | } |
1da177e4 | 349 | |
544393fe | 350 | if(ivideo->sisvga_engine == SIS_300_VGA) { |
1da177e4 | 351 | #ifdef CONFIG_FB_SIS_300 |
544393fe TW |
352 | CRITBEGIN |
353 | SiS300SetupForSolidFill(ivideo, col, myrops[rect->rop]); | |
354 | SiS300SubsequentSolidFillRect(ivideo, rect->dx, rect->dy, width, height); | |
355 | CRITEND | |
1da177e4 | 356 | #endif |
544393fe | 357 | } else { |
1da177e4 | 358 | #ifdef CONFIG_FB_SIS_315 |
544393fe TW |
359 | CRITBEGIN |
360 | SiS310SetupForSolidFill(ivideo, col, myrops[rect->rop]); | |
361 | SiS310SubsequentSolidFillRect(ivideo, rect->dx, rect->dy, width, height); | |
362 | CRITEND | |
1da177e4 | 363 | #endif |
544393fe | 364 | } |
1da177e4 | 365 | |
544393fe | 366 | sisfb_syncaccel(ivideo); |
1da177e4 LT |
367 | } |
368 | ||
369 | void fbcon_sis_copyarea(struct fb_info *info, const struct fb_copyarea *area) | |
370 | { | |
544393fe TW |
371 | struct sis_video_info *ivideo = (struct sis_video_info *)info->par; |
372 | u32 vxres = info->var.xres_virtual; | |
373 | u32 vyres = info->var.yres_virtual; | |
374 | int width = area->width; | |
375 | int height = area->height; | |
1da177e4 LT |
376 | CRITFLAGS |
377 | ||
544393fe TW |
378 | if(info->state != FBINFO_STATE_RUNNING) |
379 | return; | |
1da177e4 | 380 | |
544393fe TW |
381 | if((!ivideo->accel) || (!ivideo->engineok)) { |
382 | cfb_copyarea(info, area); | |
383 | return; | |
1da177e4 | 384 | } |
1da177e4 | 385 | |
544393fe TW |
386 | if(!width || !height || |
387 | area->sx >= vxres || area->sy >= vyres || | |
388 | area->dx >= vxres || area->dy >= vyres) | |
389 | return; | |
1da177e4 | 390 | |
544393fe TW |
391 | /* Clipping */ |
392 | if((area->sx + width) > vxres) width = vxres - area->sx; | |
393 | if((area->dx + width) > vxres) width = vxres - area->dx; | |
394 | if((area->sy + height) > vyres) height = vyres - area->sy; | |
395 | if((area->dy + height) > vyres) height = vyres - area->dy; | |
1da177e4 LT |
396 | |
397 | if(ivideo->sisvga_engine == SIS_300_VGA) { | |
398 | #ifdef CONFIG_FB_SIS_300 | |
544393fe TW |
399 | int xdir, ydir; |
400 | ||
401 | if(area->sx < area->dx) xdir = 0; | |
402 | else xdir = 1; | |
403 | if(area->sy < area->dy) ydir = 0; | |
404 | else ydir = 1; | |
405 | ||
406 | CRITBEGIN | |
407 | SiS300SetupForScreenToScreenCopy(ivideo, xdir, ydir, 3, -1); | |
408 | SiS300SubsequentScreenToScreenCopy(ivideo, area->sx, area->sy, | |
409 | area->dx, area->dy, width, height); | |
410 | CRITEND | |
1da177e4 LT |
411 | #endif |
412 | } else { | |
413 | #ifdef CONFIG_FB_SIS_315 | |
544393fe TW |
414 | CRITBEGIN |
415 | SiS310SetupForScreenToScreenCopy(ivideo, 3, -1); | |
416 | SiS310SubsequentScreenToScreenCopy(ivideo, area->sx, area->sy, | |
417 | area->dx, area->dy, width, height); | |
418 | CRITEND | |
1da177e4 | 419 | #endif |
1da177e4 LT |
420 | } |
421 | ||
544393fe | 422 | sisfb_syncaccel(ivideo); |
1da177e4 | 423 | } |