2 * Frame buffer driver for Trident TGUI, Blade and Image series
4 * Copyright 2001, 2002 - Jani Monoses <jani@iv.ro>
5 * Copyright 2009 Krzysztof Helt <krzysztof.h1@wp.pl>
7 * CREDITS:(in order of appearance)
8 * skeletonfb.c by Geert Uytterhoeven and other fb code in drivers/video
9 * Special thanks ;) to Mattia Crivellini <tia@mclink.it>
10 * much inspired by the XFree86 4.x Trident driver sources
11 * by Alan Hourihane the FreeVGA project
12 * Francesco Salvestrini <salvestrini@users.sf.net> XP support,
15 * timing value tweaking so it looks good on every monitor in every mode
18 #include <linux/module.h>
20 #include <linux/init.h>
21 #include <linux/pci.h>
23 #include <linux/delay.h>
24 #include <video/vga.h>
25 #include <video/trident.h>
27 struct tridentfb_par {
28 void __iomem *io_virt; /* iospace virtual memory address */
32 void (*init_accel) (struct tridentfb_par *, int, int);
33 void (*wait_engine) (struct tridentfb_par *);
35 (struct tridentfb_par *par, u32, u32, u32, u32, u32, u32);
37 (struct tridentfb_par *par, u32, u32, u32, u32, u32, u32);
39 (struct tridentfb_par *par, const char*,
40 u32, u32, u32, u32, u32, u32);
41 unsigned char eng_oper; /* engine operation... */
44 static struct fb_fix_screeninfo tridentfb_fix = {
46 .type = FB_TYPE_PACKED_PIXELS,
48 .visual = FB_VISUAL_PSEUDOCOLOR,
49 .accel = FB_ACCEL_NONE,
52 /* defaults which are normally overriden by user values */
55 static char *mode_option __devinitdata = "640x480-8@60";
56 static int bpp __devinitdata = 8;
58 static int noaccel __devinitdata;
63 static int fp __devinitdata;
64 static int crt __devinitdata;
66 static int memsize __devinitdata;
67 static int memdiff __devinitdata;
70 module_param(mode_option, charp, 0);
71 MODULE_PARM_DESC(mode_option, "Initial video mode e.g. '648x480-8@60'");
72 module_param_named(mode, mode_option, charp, 0);
73 MODULE_PARM_DESC(mode, "Initial video mode e.g. '648x480-8@60' (deprecated)");
74 module_param(bpp, int, 0);
75 module_param(center, int, 0);
76 module_param(stretch, int, 0);
77 module_param(noaccel, int, 0);
78 module_param(memsize, int, 0);
79 module_param(memdiff, int, 0);
80 module_param(nativex, int, 0);
81 module_param(fp, int, 0);
82 MODULE_PARM_DESC(fp, "Define if flatpanel is connected");
83 module_param(crt, int, 0);
84 MODULE_PARM_DESC(crt, "Define if CRT is connected");
86 static inline int is_oldclock(int id)
88 return (id == TGUI9440) ||
93 static inline int is_oldprotect(int id)
95 return is_oldclock(id) ||
96 (id == PROVIDIA9685) ||
101 static inline int is_blade(int id)
103 return (id == BLADE3D) ||
104 (id == CYBERBLADEE4) ||
105 (id == CYBERBLADEi7) ||
106 (id == CYBERBLADEi7D) ||
107 (id == CYBERBLADEi1) ||
108 (id == CYBERBLADEi1D) ||
109 (id == CYBERBLADEAi1) ||
110 (id == CYBERBLADEAi1D);
113 static inline int is_xp(int id)
115 return (id == CYBERBLADEXPAi1) ||
116 (id == CYBERBLADEXPm8) ||
117 (id == CYBERBLADEXPm16);
120 static inline int is3Dchip(int id)
122 return is_blade(id) || is_xp(id) ||
123 (id == CYBER9397) || (id == CYBER9397DVD) ||
124 (id == CYBER9520) || (id == CYBER9525DVD) ||
125 (id == IMAGE975) || (id == IMAGE985);
128 static inline int iscyber(int id)
144 case CYBERBLADEXPAi1:
148 case CYBERBLADEi7: /* VIA MPV4 integrated version */
150 /* case CYBERBLDAEXPm8: Strange */
151 /* case CYBERBLDAEXPm16: Strange */
156 static inline void t_outb(struct tridentfb_par *p, u8 val, u16 reg)
158 fb_writeb(val, p->io_virt + reg);
161 static inline u8 t_inb(struct tridentfb_par *p, u16 reg)
163 return fb_readb(p->io_virt + reg);
166 static inline void writemmr(struct tridentfb_par *par, u16 r, u32 v)
168 fb_writel(v, par->io_virt + r);
171 static inline u32 readmmr(struct tridentfb_par *par, u16 r)
173 return fb_readl(par->io_virt + r);
177 * Blade specific acceleration.
180 #define point(x, y) ((y) << 16 | (x))
182 static void blade_init_accel(struct tridentfb_par *par, int pitch, int bpp)
184 int v1 = (pitch >> 3) << 20;
185 int tmp = bpp == 24 ? 2 : (bpp >> 4);
186 int v2 = v1 | (tmp << 29);
188 writemmr(par, 0x21C0, v2);
189 writemmr(par, 0x21C4, v2);
190 writemmr(par, 0x21B8, v2);
191 writemmr(par, 0x21BC, v2);
192 writemmr(par, 0x21D0, v1);
193 writemmr(par, 0x21D4, v1);
194 writemmr(par, 0x21C8, v1);
195 writemmr(par, 0x21CC, v1);
196 writemmr(par, 0x216C, 0);
199 static void blade_wait_engine(struct tridentfb_par *par)
201 while (readmmr(par, STATUS) & 0xFA800000)
205 static void blade_fill_rect(struct tridentfb_par *par,
206 u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop)
208 writemmr(par, COLOR, c);
209 writemmr(par, ROP, rop ? ROP_X : ROP_S);
210 writemmr(par, CMD, 0x20000000 | 1 << 19 | 1 << 4 | 2 << 2);
212 writemmr(par, DST1, point(x, y));
213 writemmr(par, DST2, point(x + w - 1, y + h - 1));
216 static void blade_image_blit(struct tridentfb_par *par, const char *data,
217 u32 x, u32 y, u32 w, u32 h, u32 c, u32 b)
219 unsigned size = ((w + 31) >> 5) * h;
221 writemmr(par, COLOR, c);
222 writemmr(par, BGCOLOR, b);
223 writemmr(par, CMD, 0xa0000000 | 3 << 19);
225 writemmr(par, DST1, point(x, y));
226 writemmr(par, DST2, point(x + w - 1, y + h - 1));
228 memcpy(par->io_virt + 0x10000, data, 4 * size);
231 static void blade_copy_rect(struct tridentfb_par *par,
232 u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h)
235 u32 s1 = point(x1, y1);
236 u32 s2 = point(x1 + w - 1, y1 + h - 1);
237 u32 d1 = point(x2, y2);
238 u32 d2 = point(x2 + w - 1, y2 + h - 1);
240 if ((y1 > y2) || ((y1 == y2) && (x1 > x2)))
243 writemmr(par, ROP, ROP_S);
244 writemmr(par, CMD, 0xE0000000 | 1 << 19 | 1 << 4 | 1 << 2 | direction);
246 writemmr(par, SRC1, direction ? s2 : s1);
247 writemmr(par, SRC2, direction ? s1 : s2);
248 writemmr(par, DST1, direction ? d2 : d1);
249 writemmr(par, DST2, direction ? d1 : d2);
253 * BladeXP specific acceleration functions
256 static void xp_init_accel(struct tridentfb_par *par, int pitch, int bpp)
258 unsigned char x = bpp == 24 ? 3 : (bpp >> 4);
259 int v1 = pitch << (bpp == 24 ? 20 : (18 + x));
261 switch (pitch << (bpp >> 3)) {
277 t_outb(par, x, 0x2125);
279 par->eng_oper = x | 0x40;
281 writemmr(par, 0x2154, v1);
282 writemmr(par, 0x2150, v1);
283 t_outb(par, 3, 0x2126);
286 static void xp_wait_engine(struct tridentfb_par *par)
291 while (t_inb(par, STATUS) & 0x80) {
293 if (count == 10000000) {
299 t_outb(par, 0x00, STATUS);
307 static void xp_fill_rect(struct tridentfb_par *par,
308 u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop)
310 writemmr(par, 0x2127, ROP_P);
311 writemmr(par, 0x2158, c);
312 writemmr(par, DRAWFL, 0x4000);
313 writemmr(par, OLDDIM, point(h, w));
314 writemmr(par, OLDDST, point(y, x));
315 t_outb(par, 0x01, OLDCMD);
316 t_outb(par, par->eng_oper, 0x2125);
319 static void xp_copy_rect(struct tridentfb_par *par,
320 u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h)
322 u32 x1_tmp, x2_tmp, y1_tmp, y2_tmp;
323 int direction = 0x0004;
325 if ((x1 < x2) && (y1 == y2)) {
343 writemmr(par, DRAWFL, direction);
344 t_outb(par, ROP_S, 0x2127);
345 writemmr(par, OLDSRC, point(y1_tmp, x1_tmp));
346 writemmr(par, OLDDST, point(y2_tmp, x2_tmp));
347 writemmr(par, OLDDIM, point(h, w));
348 t_outb(par, 0x01, OLDCMD);
352 * Image specific acceleration functions
354 static void image_init_accel(struct tridentfb_par *par, int pitch, int bpp)
356 int tmp = bpp == 24 ? 2: (bpp >> 4);
358 writemmr(par, 0x2120, 0xF0000000);
359 writemmr(par, 0x2120, 0x40000000 | tmp);
360 writemmr(par, 0x2120, 0x80000000);
361 writemmr(par, 0x2144, 0x00000000);
362 writemmr(par, 0x2148, 0x00000000);
363 writemmr(par, 0x2150, 0x00000000);
364 writemmr(par, 0x2154, 0x00000000);
365 writemmr(par, 0x2120, 0x60000000 | (pitch << 16) | pitch);
366 writemmr(par, 0x216C, 0x00000000);
367 writemmr(par, 0x2170, 0x00000000);
368 writemmr(par, 0x217C, 0x00000000);
369 writemmr(par, 0x2120, 0x10000000);
370 writemmr(par, 0x2130, (2047 << 16) | 2047);
373 static void image_wait_engine(struct tridentfb_par *par)
375 while (readmmr(par, 0x2164) & 0xF0000000)
379 static void image_fill_rect(struct tridentfb_par *par,
380 u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop)
382 writemmr(par, 0x2120, 0x80000000);
383 writemmr(par, 0x2120, 0x90000000 | ROP_S);
385 writemmr(par, 0x2144, c);
387 writemmr(par, DST1, point(x, y));
388 writemmr(par, DST2, point(x + w - 1, y + h - 1));
390 writemmr(par, 0x2124, 0x80000000 | 3 << 22 | 1 << 10 | 1 << 9);
393 static void image_copy_rect(struct tridentfb_par *par,
394 u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h)
397 u32 s1 = point(x1, y1);
398 u32 s2 = point(x1 + w - 1, y1 + h - 1);
399 u32 d1 = point(x2, y2);
400 u32 d2 = point(x2 + w - 1, y2 + h - 1);
402 if ((y1 > y2) || ((y1 == y2) && (x1 > x2)))
405 writemmr(par, 0x2120, 0x80000000);
406 writemmr(par, 0x2120, 0x90000000 | ROP_S);
408 writemmr(par, SRC1, direction ? s2 : s1);
409 writemmr(par, SRC2, direction ? s1 : s2);
410 writemmr(par, DST1, direction ? d2 : d1);
411 writemmr(par, DST2, direction ? d1 : d2);
412 writemmr(par, 0x2124,
413 0x80000000 | 1 << 22 | 1 << 10 | 1 << 7 | direction);
417 * TGUI 9440/96XX acceleration
420 static void tgui_init_accel(struct tridentfb_par *par, int pitch, int bpp)
422 unsigned char x = bpp == 24 ? 3 : (bpp >> 4);
424 /* disable clipping */
425 writemmr(par, 0x2148, 0);
426 writemmr(par, 0x214C, point(4095, 2047));
428 switch ((pitch * bpp) / 8) {
444 fb_writew(x, par->io_virt + 0x2122);
447 static void tgui_fill_rect(struct tridentfb_par *par,
448 u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop)
450 t_outb(par, ROP_P, 0x2127);
451 writemmr(par, OLDCLR, c);
452 writemmr(par, DRAWFL, 0x4020);
453 writemmr(par, OLDDIM, point(w - 1, h - 1));
454 writemmr(par, OLDDST, point(x, y));
455 t_outb(par, 1, OLDCMD);
458 static void tgui_copy_rect(struct tridentfb_par *par,
459 u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h)
462 u16 x1_tmp, x2_tmp, y1_tmp, y2_tmp;
464 if ((x1 < x2) && (y1 == y2)) {
482 writemmr(par, DRAWFL, 0x4 | flags);
483 t_outb(par, ROP_S, 0x2127);
484 writemmr(par, OLDSRC, point(x1_tmp, y1_tmp));
485 writemmr(par, OLDDST, point(x2_tmp, y2_tmp));
486 writemmr(par, OLDDIM, point(w - 1, h - 1));
487 t_outb(par, 1, OLDCMD);
491 * Accel functions called by the upper layers
493 static void tridentfb_fillrect(struct fb_info *info,
494 const struct fb_fillrect *fr)
496 struct tridentfb_par *par = info->par;
499 if (info->flags & FBINFO_HWACCEL_DISABLED) {
500 cfb_fillrect(info, fr);
503 if (info->var.bits_per_pixel == 8) {
508 col = ((u32 *)(info->pseudo_palette))[fr->color];
510 par->wait_engine(par);
511 par->fill_rect(par, fr->dx, fr->dy, fr->width,
512 fr->height, col, fr->rop);
515 static void tridentfb_imageblit(struct fb_info *info,
516 const struct fb_image *img)
518 struct tridentfb_par *par = info->par;
521 if ((info->flags & FBINFO_HWACCEL_DISABLED) || img->depth != 1) {
522 cfb_imageblit(info, img);
525 if (info->var.bits_per_pixel == 8) {
529 bgcol = img->bg_color;
531 bgcol |= bgcol << 16;
533 col = ((u32 *)(info->pseudo_palette))[img->fg_color];
534 bgcol = ((u32 *)(info->pseudo_palette))[img->bg_color];
537 par->wait_engine(par);
539 par->image_blit(par, img->data, img->dx, img->dy,
540 img->width, img->height, col, bgcol);
542 cfb_imageblit(info, img);
545 static void tridentfb_copyarea(struct fb_info *info,
546 const struct fb_copyarea *ca)
548 struct tridentfb_par *par = info->par;
550 if (info->flags & FBINFO_HWACCEL_DISABLED) {
551 cfb_copyarea(info, ca);
554 par->wait_engine(par);
555 par->copy_rect(par, ca->sx, ca->sy, ca->dx, ca->dy,
556 ca->width, ca->height);
559 static int tridentfb_sync(struct fb_info *info)
561 struct tridentfb_par *par = info->par;
563 if (!(info->flags & FBINFO_HWACCEL_DISABLED))
564 par->wait_engine(par);
569 * Hardware access functions
572 static inline unsigned char read3X4(struct tridentfb_par *par, int reg)
574 return vga_mm_rcrt(par->io_virt, reg);
577 static inline void write3X4(struct tridentfb_par *par, int reg,
580 vga_mm_wcrt(par->io_virt, reg, val);
583 static inline unsigned char read3CE(struct tridentfb_par *par,
586 return vga_mm_rgfx(par->io_virt, reg);
589 static inline void writeAttr(struct tridentfb_par *par, int reg,
592 fb_readb(par->io_virt + VGA_IS1_RC); /* flip-flop to index */
593 vga_mm_wattr(par->io_virt, reg, val);
596 static inline void write3CE(struct tridentfb_par *par, int reg,
599 vga_mm_wgfx(par->io_virt, reg, val);
602 static void enable_mmio(struct tridentfb_par *par)
607 /* Unprotect registers */
608 vga_io_wseq(NewMode1, 0x80);
609 if (!is_oldprotect(par->chip_id))
610 vga_io_wseq(Protection, 0x92);
614 outb(inb(0x3D5) | 0x01, 0x3D5);
617 static void disable_mmio(struct tridentfb_par *par)
620 vga_mm_rseq(par->io_virt, 0x0B);
622 /* Unprotect registers */
623 vga_mm_wseq(par->io_virt, NewMode1, 0x80);
624 if (!is_oldprotect(par->chip_id))
625 vga_mm_wseq(par->io_virt, Protection, 0x92);
628 t_outb(par, PCIReg, 0x3D4);
629 t_outb(par, t_inb(par, 0x3D5) & ~0x01, 0x3D5);
632 static inline void crtc_unlock(struct tridentfb_par *par)
634 write3X4(par, VGA_CRTC_V_SYNC_END,
635 read3X4(par, VGA_CRTC_V_SYNC_END) & 0x7F);
638 /* Return flat panel's maximum x resolution */
639 static int __devinit get_nativex(struct tridentfb_par *par)
646 tmp = (read3CE(par, VertStretch) >> 4) & 3;
667 output("%dx%d flat panel found\n", x, y);
672 static inline void set_lwidth(struct tridentfb_par *par, int width)
674 write3X4(par, VGA_CRTC_OFFSET, width & 0xFF);
675 write3X4(par, AddColReg,
676 (read3X4(par, AddColReg) & 0xCF) | ((width & 0x300) >> 4));
679 /* For resolutions smaller than FP resolution stretch */
680 static void screen_stretch(struct tridentfb_par *par)
682 if (par->chip_id != CYBERBLADEXPAi1)
683 write3CE(par, BiosReg, 0);
685 write3CE(par, BiosReg, 8);
686 write3CE(par, VertStretch, (read3CE(par, VertStretch) & 0x7C) | 1);
687 write3CE(par, HorStretch, (read3CE(par, HorStretch) & 0x7C) | 1);
690 /* For resolutions smaller than FP resolution center */
691 static inline void screen_center(struct tridentfb_par *par)
693 write3CE(par, VertStretch, (read3CE(par, VertStretch) & 0x7C) | 0x80);
694 write3CE(par, HorStretch, (read3CE(par, HorStretch) & 0x7C) | 0x80);
697 /* Address of first shown pixel in display memory */
698 static void set_screen_start(struct tridentfb_par *par, int base)
701 write3X4(par, VGA_CRTC_START_LO, base & 0xFF);
702 write3X4(par, VGA_CRTC_START_HI, (base & 0xFF00) >> 8);
703 tmp = read3X4(par, CRTCModuleTest) & 0xDF;
704 write3X4(par, CRTCModuleTest, tmp | ((base & 0x10000) >> 11));
705 tmp = read3X4(par, CRTHiOrd) & 0xF8;
706 write3X4(par, CRTHiOrd, tmp | ((base & 0xE0000) >> 17));
709 /* Set dotclock frequency */
710 static void set_vclk(struct tridentfb_par *par, unsigned long freq)
713 unsigned long fi, d, di;
714 unsigned char best_m = 0, best_n = 0, best_k = 0;
715 unsigned char hi, lo;
716 unsigned char shift = !is_oldclock(par->chip_id) ? 2 : 1;
719 for (k = shift; k >= 0; k--)
720 for (m = 1; m < 32; m++) {
721 n = ((m + 2) << shift) - 8;
722 for (n = (n < 0 ? 0 : n); n < 122; n++) {
723 fi = ((14318l * (n + 8)) / (m + 2)) >> k;
725 if (di < d || (di == d && k == best_k)) {
736 if (is_oldclock(par->chip_id)) {
737 lo = best_n | (best_m << 7);
738 hi = (best_m >> 1) | (best_k << 4);
741 hi = best_m | (best_k << 6);
744 if (is3Dchip(par->chip_id)) {
745 vga_mm_wseq(par->io_virt, ClockHigh, hi);
746 vga_mm_wseq(par->io_virt, ClockLow, lo);
748 t_outb(par, lo, 0x43C8);
749 t_outb(par, hi, 0x43C9);
751 debug("VCLK = %X %X\n", hi, lo);
754 /* Set number of lines for flat panels*/
755 static void set_number_of_lines(struct tridentfb_par *par, int lines)
757 int tmp = read3CE(par, CyberEnhance) & 0x8F;
760 else if (lines > 768)
762 else if (lines > 600)
764 else if (lines > 480)
766 write3CE(par, CyberEnhance, tmp);
770 * If we see that FP is active we assume we have one.
771 * Otherwise we have a CRT display. User can override.
773 static int __devinit is_flatpanel(struct tridentfb_par *par)
777 if (crt || !iscyber(par->chip_id))
779 return (read3CE(par, FPConfig) & 0x10) ? 1 : 0;
782 /* Try detecting the video memory size */
783 static unsigned int __devinit get_memsize(struct tridentfb_par *par)
785 unsigned char tmp, tmp2;
788 /* If memory size provided by user */
792 switch (par->chip_id) {
797 tmp = read3X4(par, SPR) & 0x0F;
813 k = 10 * Mb; /* XP */
819 k = 12 * Mb; /* XP */
822 k = 14 * Mb; /* XP */
825 k = 16 * Mb; /* XP */
829 tmp2 = vga_mm_rseq(par->io_virt, 0xC1);
859 output("framebuffer size = %d Kb\n", k / Kb);
863 /* See if we can handle the video mode described in var */
864 static int tridentfb_check_var(struct fb_var_screeninfo *var,
865 struct fb_info *info)
867 struct tridentfb_par *par = info->par;
868 int bpp = var->bits_per_pixel;
870 int ramdac = 230000; /* 230MHz for most 3D chips */
873 /* check color depth */
875 bpp = var->bits_per_pixel = 32;
876 if (bpp != 8 && bpp != 16 && bpp != 32)
878 if (par->chip_id == TGUI9440 && bpp == 32)
880 /* check whether resolution fits on panel and in memory */
881 if (par->flatpanel && nativex && var->xres > nativex)
883 /* various resolution checks */
884 var->xres = (var->xres + 7) & ~0x7;
885 if (var->xres > var->xres_virtual)
886 var->xres_virtual = var->xres;
887 if (var->yres > var->yres_virtual)
888 var->yres_virtual = var->yres;
889 if (var->xres_virtual > 4095 || var->yres > 2048)
891 /* prevent from position overflow for acceleration */
892 if (var->yres_virtual > 0xffff)
894 line_length = var->xres_virtual * bpp / 8;
896 if (!is3Dchip(par->chip_id) &&
897 !(info->flags & FBINFO_HWACCEL_DISABLED)) {
898 /* acceleration requires line length to be power of 2 */
899 if (line_length <= 512)
900 var->xres_virtual = 512 * 8 / bpp;
901 else if (line_length <= 1024)
902 var->xres_virtual = 1024 * 8 / bpp;
903 else if (line_length <= 2048)
904 var->xres_virtual = 2048 * 8 / bpp;
905 else if (line_length <= 4096)
906 var->xres_virtual = 4096 * 8 / bpp;
907 else if (line_length <= 8192)
908 var->xres_virtual = 8192 * 8 / bpp;
912 line_length = var->xres_virtual * bpp / 8;
915 /* datasheet specifies how to set panning only up to 4 MB */
916 if (line_length * (var->yres_virtual - var->yres) > (4 << 20))
917 var->yres_virtual = ((4 << 20) / line_length) + var->yres;
919 if (line_length * var->yres_virtual > info->fix.smem_len)
926 var->green = var->red;
927 var->blue = var->red;
930 var->red.offset = 11;
931 var->green.offset = 5;
932 var->blue.offset = 0;
934 var->green.length = 6;
935 var->blue.length = 5;
938 var->red.offset = 16;
939 var->green.offset = 8;
940 var->blue.offset = 0;
942 var->green.length = 8;
943 var->blue.length = 8;
949 if (is_xp(par->chip_id))
952 switch (par->chip_id) {
954 ramdac = (bpp >= 16) ? 45000 : 90000;
968 /* The clock is doubled for 32 bpp */
972 if (PICOS2KHZ(var->pixclock) > ramdac)
981 /* Pan the display */
982 static int tridentfb_pan_display(struct fb_var_screeninfo *var,
983 struct fb_info *info)
985 struct tridentfb_par *par = info->par;
989 offset = (var->xoffset + (var->yoffset * var->xres_virtual))
990 * var->bits_per_pixel / 32;
991 set_screen_start(par, offset);
996 static inline void shadowmode_on(struct tridentfb_par *par)
998 write3CE(par, CyberControl, read3CE(par, CyberControl) | 0x81);
1001 static inline void shadowmode_off(struct tridentfb_par *par)
1003 write3CE(par, CyberControl, read3CE(par, CyberControl) & 0x7E);
1006 /* Set the hardware to the requested video mode */
1007 static int tridentfb_set_par(struct fb_info *info)
1009 struct tridentfb_par *par = info->par;
1010 u32 htotal, hdispend, hsyncstart, hsyncend, hblankstart, hblankend;
1011 u32 vtotal, vdispend, vsyncstart, vsyncend, vblankstart, vblankend;
1012 struct fb_var_screeninfo *var = &info->var;
1013 int bpp = var->bits_per_pixel;
1018 hdispend = var->xres / 8 - 1;
1019 hsyncstart = (var->xres + var->right_margin) / 8;
1020 hsyncend = (var->xres + var->right_margin + var->hsync_len) / 8;
1021 htotal = (var->xres + var->left_margin + var->right_margin +
1022 var->hsync_len) / 8 - 5;
1023 hblankstart = hdispend + 1;
1024 hblankend = htotal + 3;
1026 vdispend = var->yres - 1;
1027 vsyncstart = var->yres + var->lower_margin;
1028 vsyncend = vsyncstart + var->vsync_len;
1029 vtotal = var->upper_margin + vsyncend - 2;
1030 vblankstart = vdispend + 1;
1033 if (info->var.vmode & FB_VMODE_INTERLACED) {
1044 write3CE(par, CyberControl, 8);
1046 if (var->sync & FB_SYNC_HOR_HIGH_ACT)
1048 if (var->sync & FB_SYNC_VERT_HIGH_ACT)
1051 if (par->flatpanel && var->xres < nativex) {
1053 * on flat panels with native size larger
1054 * than requested resolution decide whether
1055 * we stretch or center
1057 t_outb(par, tmp | 0xC0, VGA_MIS_W);
1064 screen_stretch(par);
1067 t_outb(par, tmp, VGA_MIS_W);
1068 write3CE(par, CyberControl, 8);
1071 /* vertical timing values */
1072 write3X4(par, VGA_CRTC_V_TOTAL, vtotal & 0xFF);
1073 write3X4(par, VGA_CRTC_V_DISP_END, vdispend & 0xFF);
1074 write3X4(par, VGA_CRTC_V_SYNC_START, vsyncstart & 0xFF);
1075 write3X4(par, VGA_CRTC_V_SYNC_END, (vsyncend & 0x0F));
1076 write3X4(par, VGA_CRTC_V_BLANK_START, vblankstart & 0xFF);
1077 write3X4(par, VGA_CRTC_V_BLANK_END, vblankend & 0xFF);
1079 /* horizontal timing values */
1080 write3X4(par, VGA_CRTC_H_TOTAL, htotal & 0xFF);
1081 write3X4(par, VGA_CRTC_H_DISP, hdispend & 0xFF);
1082 write3X4(par, VGA_CRTC_H_SYNC_START, hsyncstart & 0xFF);
1083 write3X4(par, VGA_CRTC_H_SYNC_END,
1084 (hsyncend & 0x1F) | ((hblankend & 0x20) << 2));
1085 write3X4(par, VGA_CRTC_H_BLANK_START, hblankstart & 0xFF);
1086 write3X4(par, VGA_CRTC_H_BLANK_END, hblankend & 0x1F);
1088 /* higher bits of vertical timing values */
1090 if (vtotal & 0x100) tmp |= 0x01;
1091 if (vdispend & 0x100) tmp |= 0x02;
1092 if (vsyncstart & 0x100) tmp |= 0x04;
1093 if (vblankstart & 0x100) tmp |= 0x08;
1095 if (vtotal & 0x200) tmp |= 0x20;
1096 if (vdispend & 0x200) tmp |= 0x40;
1097 if (vsyncstart & 0x200) tmp |= 0x80;
1098 write3X4(par, VGA_CRTC_OVERFLOW, tmp);
1100 tmp = read3X4(par, CRTHiOrd) & 0x07;
1101 tmp |= 0x08; /* line compare bit 10 */
1102 if (vtotal & 0x400) tmp |= 0x80;
1103 if (vblankstart & 0x400) tmp |= 0x40;
1104 if (vsyncstart & 0x400) tmp |= 0x20;
1105 if (vdispend & 0x400) tmp |= 0x10;
1106 write3X4(par, CRTHiOrd, tmp);
1108 tmp = (htotal >> 8) & 0x01;
1109 tmp |= (hdispend >> 7) & 0x02;
1110 tmp |= (hsyncstart >> 5) & 0x08;
1111 tmp |= (hblankstart >> 4) & 0x10;
1112 write3X4(par, HorizOverflow, tmp);
1115 if (vblankstart & 0x200) tmp |= 0x20;
1116 //FIXME if (info->var.vmode & FB_VMODE_DOUBLE) tmp |= 0x80; /* double scan for 200 line modes */
1117 write3X4(par, VGA_CRTC_MAX_SCAN, tmp);
1119 write3X4(par, VGA_CRTC_LINE_COMPARE, 0xFF);
1120 write3X4(par, VGA_CRTC_PRESET_ROW, 0);
1121 write3X4(par, VGA_CRTC_MODE, 0xC3);
1123 write3X4(par, LinearAddReg, 0x20); /* enable linear addressing */
1125 tmp = (info->var.vmode & FB_VMODE_INTERLACED) ? 0x84 : 0x80;
1126 /* enable access extended memory */
1127 write3X4(par, CRTCModuleTest, tmp);
1128 tmp = read3CE(par, MiscIntContReg) & ~0x4;
1129 if (info->var.vmode & FB_VMODE_INTERLACED)
1131 write3CE(par, MiscIntContReg, tmp);
1133 /* enable GE for text acceleration */
1134 write3X4(par, GraphEngReg, 0x80);
1151 write3X4(par, PixelBusReg, tmp);
1153 tmp = read3X4(par, DRAMControl);
1154 if (!is_oldprotect(par->chip_id))
1156 if (iscyber(par->chip_id))
1158 write3X4(par, DRAMControl, tmp); /* both IO, linear enable */
1160 write3X4(par, InterfaceSel, read3X4(par, InterfaceSel) | 0x40);
1161 if (!is_xp(par->chip_id))
1162 write3X4(par, Performance, read3X4(par, Performance) | 0x10);
1163 /* MMIO & PCI read and write burst enable */
1164 if (par->chip_id != TGUI9440 && par->chip_id != IMAGE975)
1165 write3X4(par, PCIReg, read3X4(par, PCIReg) | 0x06);
1167 vga_mm_wseq(par->io_virt, 0, 3);
1168 vga_mm_wseq(par->io_virt, 1, 1); /* set char clock 8 dots wide */
1169 /* enable 4 maps because needed in chain4 mode */
1170 vga_mm_wseq(par->io_virt, 2, 0x0F);
1171 vga_mm_wseq(par->io_virt, 3, 0);
1172 vga_mm_wseq(par->io_virt, 4, 0x0E); /* memory mode enable bitmaps ?? */
1174 /* convert from picoseconds to kHz */
1175 vclk = PICOS2KHZ(info->var.pixclock);
1177 /* divide clock by 2 if 32bpp chain4 mode display and CPU path */
1178 tmp = read3CE(par, MiscExtFunc) & 0xF0;
1179 if (bpp == 32 || (par->chip_id == TGUI9440 && bpp == 16)) {
1183 set_vclk(par, vclk);
1184 write3CE(par, MiscExtFunc, tmp | 0x12);
1185 write3CE(par, 0x5, 0x40); /* no CGA compat, allow 256 col */
1186 write3CE(par, 0x6, 0x05); /* graphics mode */
1187 write3CE(par, 0x7, 0x0F); /* planes? */
1189 /* graphics mode and support 256 color modes */
1190 writeAttr(par, 0x10, 0x41);
1191 writeAttr(par, 0x12, 0x0F); /* planes */
1192 writeAttr(par, 0x13, 0); /* horizontal pel panning */
1195 for (tmp = 0; tmp < 0x10; tmp++)
1196 writeAttr(par, tmp, tmp);
1197 fb_readb(par->io_virt + VGA_IS1_RC); /* flip-flop to index */
1198 t_outb(par, 0x20, VGA_ATT_W); /* enable attr */
1213 t_inb(par, VGA_PEL_IW);
1214 t_inb(par, VGA_PEL_MSK);
1215 t_inb(par, VGA_PEL_MSK);
1216 t_inb(par, VGA_PEL_MSK);
1217 t_inb(par, VGA_PEL_MSK);
1218 t_outb(par, tmp, VGA_PEL_MSK);
1219 t_inb(par, VGA_PEL_IW);
1222 set_number_of_lines(par, info->var.yres);
1223 info->fix.line_length = info->var.xres_virtual * bpp / 8;
1224 set_lwidth(par, info->fix.line_length / 8);
1226 if (!(info->flags & FBINFO_HWACCEL_DISABLED))
1227 par->init_accel(par, info->var.xres_virtual, bpp);
1229 info->fix.visual = (bpp == 8) ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
1230 info->cmap.len = (bpp == 8) ? 256 : 16;
1235 /* Set one color register */
1236 static int tridentfb_setcolreg(unsigned regno, unsigned red, unsigned green,
1237 unsigned blue, unsigned transp,
1238 struct fb_info *info)
1240 int bpp = info->var.bits_per_pixel;
1241 struct tridentfb_par *par = info->par;
1243 if (regno >= info->cmap.len)
1247 t_outb(par, 0xFF, VGA_PEL_MSK);
1248 t_outb(par, regno, VGA_PEL_IW);
1250 t_outb(par, red >> 10, VGA_PEL_D);
1251 t_outb(par, green >> 10, VGA_PEL_D);
1252 t_outb(par, blue >> 10, VGA_PEL_D);
1254 } else if (regno < 16) {
1255 if (bpp == 16) { /* RGB 565 */
1258 col = (red & 0xF800) | ((green & 0xFC00) >> 5) |
1259 ((blue & 0xF800) >> 11);
1261 ((u32 *)(info->pseudo_palette))[regno] = col;
1262 } else if (bpp == 32) /* ARGB 8888 */
1263 ((u32 *)info->pseudo_palette)[regno] =
1264 ((transp & 0xFF00) << 16) |
1265 ((red & 0xFF00) << 8) |
1266 ((green & 0xFF00)) |
1267 ((blue & 0xFF00) >> 8);
1273 /* Try blanking the screen. For flat panels it does nothing */
1274 static int tridentfb_blank(int blank_mode, struct fb_info *info)
1276 unsigned char PMCont, DPMSCont;
1277 struct tridentfb_par *par = info->par;
1282 t_outb(par, 0x04, 0x83C8); /* Read DPMS Control */
1283 PMCont = t_inb(par, 0x83C6) & 0xFC;
1284 DPMSCont = read3CE(par, PowerStatus) & 0xFC;
1285 switch (blank_mode) {
1286 case FB_BLANK_UNBLANK:
1287 /* Screen: On, HSync: On, VSync: On */
1288 case FB_BLANK_NORMAL:
1289 /* Screen: Off, HSync: On, VSync: On */
1293 case FB_BLANK_HSYNC_SUSPEND:
1294 /* Screen: Off, HSync: Off, VSync: On */
1298 case FB_BLANK_VSYNC_SUSPEND:
1299 /* Screen: Off, HSync: On, VSync: Off */
1303 case FB_BLANK_POWERDOWN:
1304 /* Screen: Off, HSync: Off, VSync: Off */
1310 write3CE(par, PowerStatus, DPMSCont);
1311 t_outb(par, 4, 0x83C8);
1312 t_outb(par, PMCont, 0x83C6);
1316 /* let fbcon do a softblank for us */
1317 return (blank_mode == FB_BLANK_NORMAL) ? 1 : 0;
1320 static struct fb_ops tridentfb_ops = {
1321 .owner = THIS_MODULE,
1322 .fb_setcolreg = tridentfb_setcolreg,
1323 .fb_pan_display = tridentfb_pan_display,
1324 .fb_blank = tridentfb_blank,
1325 .fb_check_var = tridentfb_check_var,
1326 .fb_set_par = tridentfb_set_par,
1327 .fb_fillrect = tridentfb_fillrect,
1328 .fb_copyarea = tridentfb_copyarea,
1329 .fb_imageblit = tridentfb_imageblit,
1330 .fb_sync = tridentfb_sync,
1333 static int __devinit trident_pci_probe(struct pci_dev *dev,
1334 const struct pci_device_id *id)
1337 unsigned char revision;
1338 struct fb_info *info;
1339 struct tridentfb_par *default_par;
1343 err = pci_enable_device(dev);
1347 info = framebuffer_alloc(sizeof(struct tridentfb_par), &dev->dev);
1350 default_par = info->par;
1352 chip_id = id->device;
1354 /* If PCI id is 0x9660 then further detect chip type */
1356 if (chip_id == TGUI9660) {
1357 revision = vga_io_rseq(RevisionID);
1361 chip_id = PROVIDIA9685;
1365 chip_id = CYBER9397;
1368 chip_id = CYBER9397DVD;
1377 chip_id = CYBER9385;
1380 chip_id = CYBER9382;
1383 chip_id = CYBER9388;
1390 chip3D = is3Dchip(chip_id);
1392 if (is_xp(chip_id)) {
1393 default_par->init_accel = xp_init_accel;
1394 default_par->wait_engine = xp_wait_engine;
1395 default_par->fill_rect = xp_fill_rect;
1396 default_par->copy_rect = xp_copy_rect;
1397 tridentfb_fix.accel = FB_ACCEL_TRIDENT_BLADEXP;
1398 } else if (is_blade(chip_id)) {
1399 default_par->init_accel = blade_init_accel;
1400 default_par->wait_engine = blade_wait_engine;
1401 default_par->fill_rect = blade_fill_rect;
1402 default_par->copy_rect = blade_copy_rect;
1403 default_par->image_blit = blade_image_blit;
1404 tridentfb_fix.accel = FB_ACCEL_TRIDENT_BLADE3D;
1405 } else if (chip3D) { /* 3DImage family left */
1406 default_par->init_accel = image_init_accel;
1407 default_par->wait_engine = image_wait_engine;
1408 default_par->fill_rect = image_fill_rect;
1409 default_par->copy_rect = image_copy_rect;
1410 tridentfb_fix.accel = FB_ACCEL_TRIDENT_3DIMAGE;
1411 } else { /* TGUI 9440/96XX family */
1412 default_par->init_accel = tgui_init_accel;
1413 default_par->wait_engine = xp_wait_engine;
1414 default_par->fill_rect = tgui_fill_rect;
1415 default_par->copy_rect = tgui_copy_rect;
1416 tridentfb_fix.accel = FB_ACCEL_TRIDENT_TGUI;
1419 default_par->chip_id = chip_id;
1421 /* setup MMIO region */
1422 tridentfb_fix.mmio_start = pci_resource_start(dev, 1);
1423 tridentfb_fix.mmio_len = pci_resource_len(dev, 1);
1425 if (!request_mem_region(tridentfb_fix.mmio_start,
1426 tridentfb_fix.mmio_len, "tridentfb")) {
1427 debug("request_region failed!\n");
1428 framebuffer_release(info);
1432 default_par->io_virt = ioremap_nocache(tridentfb_fix.mmio_start,
1433 tridentfb_fix.mmio_len);
1435 if (!default_par->io_virt) {
1436 debug("ioremap failed\n");
1441 enable_mmio(default_par);
1443 /* setup framebuffer memory */
1444 tridentfb_fix.smem_start = pci_resource_start(dev, 0);
1445 tridentfb_fix.smem_len = get_memsize(default_par);
1447 if (!request_mem_region(tridentfb_fix.smem_start,
1448 tridentfb_fix.smem_len, "tridentfb")) {
1449 debug("request_mem_region failed!\n");
1450 disable_mmio(info->par);
1455 info->screen_base = ioremap_nocache(tridentfb_fix.smem_start,
1456 tridentfb_fix.smem_len);
1458 if (!info->screen_base) {
1459 debug("ioremap failed\n");
1464 default_par->flatpanel = is_flatpanel(default_par);
1466 if (default_par->flatpanel)
1467 nativex = get_nativex(default_par);
1469 info->fix = tridentfb_fix;
1470 info->fbops = &tridentfb_ops;
1471 info->pseudo_palette = default_par->pseudo_pal;
1473 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
1474 if (!noaccel && default_par->init_accel) {
1475 info->flags &= ~FBINFO_HWACCEL_DISABLED;
1476 info->flags |= FBINFO_HWACCEL_COPYAREA;
1477 info->flags |= FBINFO_HWACCEL_FILLRECT;
1479 info->flags |= FBINFO_HWACCEL_DISABLED;
1481 if (is_blade(chip_id) && chip_id != BLADE3D)
1482 info->flags |= FBINFO_READS_FAST;
1484 info->pixmap.addr = kmalloc(4096, GFP_KERNEL);
1485 if (!info->pixmap.addr) {
1490 info->pixmap.size = 4096;
1491 info->pixmap.buf_align = 4;
1492 info->pixmap.scan_align = 1;
1493 info->pixmap.access_align = 32;
1494 info->pixmap.flags = FB_PIXMAP_SYSTEM;
1496 if (default_par->image_blit) {
1497 info->flags |= FBINFO_HWACCEL_IMAGEBLIT;
1498 info->pixmap.scan_align = 4;
1502 printk(KERN_DEBUG "disabling acceleration\n");
1503 info->flags |= FBINFO_HWACCEL_DISABLED;
1504 info->pixmap.scan_align = 1;
1507 if (!fb_find_mode(&info->var, info,
1508 mode_option, NULL, 0, NULL, bpp)) {
1512 err = fb_alloc_cmap(&info->cmap, 256, 0);
1516 info->var.activate |= FB_ACTIVATE_NOW;
1517 info->device = &dev->dev;
1518 if (register_framebuffer(info) < 0) {
1519 printk(KERN_ERR "tridentfb: could not register framebuffer\n");
1520 fb_dealloc_cmap(&info->cmap);
1524 output("fb%d: %s frame buffer device %dx%d-%dbpp\n",
1525 info->node, info->fix.id, info->var.xres,
1526 info->var.yres, info->var.bits_per_pixel);
1528 pci_set_drvdata(dev, info);
1532 kfree(info->pixmap.addr);
1533 if (info->screen_base)
1534 iounmap(info->screen_base);
1535 release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len);
1536 disable_mmio(info->par);
1538 if (default_par->io_virt)
1539 iounmap(default_par->io_virt);
1540 release_mem_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len);
1541 framebuffer_release(info);
1545 static void __devexit trident_pci_remove(struct pci_dev *dev)
1547 struct fb_info *info = pci_get_drvdata(dev);
1548 struct tridentfb_par *par = info->par;
1550 unregister_framebuffer(info);
1551 iounmap(par->io_virt);
1552 iounmap(info->screen_base);
1553 release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len);
1554 release_mem_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len);
1555 pci_set_drvdata(dev, NULL);
1556 kfree(info->pixmap.addr);
1557 fb_dealloc_cmap(&info->cmap);
1558 framebuffer_release(info);
1561 /* List of boards that we are trying to support */
1562 static struct pci_device_id trident_devices[] = {
1563 {PCI_VENDOR_ID_TRIDENT, BLADE3D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1564 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi7, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1565 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi7D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1566 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1567 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi1D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1568 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEAi1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1569 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEAi1D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1570 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEE4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1571 {PCI_VENDOR_ID_TRIDENT, TGUI9440, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1572 {PCI_VENDOR_ID_TRIDENT, TGUI9660, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1573 {PCI_VENDOR_ID_TRIDENT, IMAGE975, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1574 {PCI_VENDOR_ID_TRIDENT, IMAGE985, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1575 {PCI_VENDOR_ID_TRIDENT, CYBER9320, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1576 {PCI_VENDOR_ID_TRIDENT, CYBER9388, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1577 {PCI_VENDOR_ID_TRIDENT, CYBER9520, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1578 {PCI_VENDOR_ID_TRIDENT, CYBER9525DVD, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1579 {PCI_VENDOR_ID_TRIDENT, CYBER9397, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1580 {PCI_VENDOR_ID_TRIDENT, CYBER9397DVD, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1581 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEXPAi1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1582 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEXPm8, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1583 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEXPm16, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1587 MODULE_DEVICE_TABLE(pci, trident_devices);
1589 static struct pci_driver tridentfb_pci_driver = {
1590 .name = "tridentfb",
1591 .id_table = trident_devices,
1592 .probe = trident_pci_probe,
1593 .remove = __devexit_p(trident_pci_remove)
1597 * Parse user specified options (`video=trident:')
1599 * video=trident:800x600,bpp=16,noaccel
1602 static int __init tridentfb_setup(char *options)
1605 if (!options || !*options)
1607 while ((opt = strsep(&options, ",")) != NULL) {
1610 if (!strncmp(opt, "noaccel", 7))
1612 else if (!strncmp(opt, "fp", 2))
1614 else if (!strncmp(opt, "crt", 3))
1616 else if (!strncmp(opt, "bpp=", 4))
1617 bpp = simple_strtoul(opt + 4, NULL, 0);
1618 else if (!strncmp(opt, "center", 6))
1620 else if (!strncmp(opt, "stretch", 7))
1622 else if (!strncmp(opt, "memsize=", 8))
1623 memsize = simple_strtoul(opt + 8, NULL, 0);
1624 else if (!strncmp(opt, "memdiff=", 8))
1625 memdiff = simple_strtoul(opt + 8, NULL, 0);
1626 else if (!strncmp(opt, "nativex=", 8))
1627 nativex = simple_strtoul(opt + 8, NULL, 0);
1635 static int __init tridentfb_init(void)
1638 char *option = NULL;
1640 if (fb_get_options("tridentfb", &option))
1642 tridentfb_setup(option);
1644 return pci_register_driver(&tridentfb_pci_driver);
1647 static void __exit tridentfb_exit(void)
1649 pci_unregister_driver(&tridentfb_pci_driver);
1652 module_init(tridentfb_init);
1653 module_exit(tridentfb_exit);
1655 MODULE_AUTHOR("Jani Monoses <jani@iv.ro>");
1656 MODULE_DESCRIPTION("Framebuffer driver for Trident cards");
1657 MODULE_LICENSE("GPL");
1658 MODULE_ALIAS("cyblafb");