accel.c
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上传日期:2013-04-10
资源大小:33168k
文件大小:12k
- /*
- * linux/drivers/video/accel.c - nVidia RIVA 128/TNT/TNT2 fb driver
- *
- * Copyright 2000 Jindrich Makovicka, Ani Joshi
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file COPYING in the main directory of this archive
- * for more details.
- */
- #include "rivafb.h"
- /* acceleration routines */
- inline void wait_for_idle(struct rivafb_info *rinfo)
- {
- while (rinfo->riva.Busy(&rinfo->riva));
- }
- /* set copy ROP, no mask */
- static void riva_setup_ROP(struct rivafb_info *rinfo)
- {
- RIVA_FIFO_FREE(rinfo->riva, Patt, 5);
- rinfo->riva.Patt->Shape = 0;
- rinfo->riva.Patt->Color0 = 0xffffffff;
- rinfo->riva.Patt->Color1 = 0xffffffff;
- rinfo->riva.Patt->Monochrome[0] = 0xffffffff;
- rinfo->riva.Patt->Monochrome[1] = 0xffffffff;
- RIVA_FIFO_FREE(rinfo->riva, Rop, 1);
- rinfo->riva.Rop->Rop3 = 0xCC;
- }
- void riva_setup_accel(struct rivafb_info *rinfo)
- {
- RIVA_FIFO_FREE(rinfo->riva, Clip, 2);
- rinfo->riva.Clip->TopLeft = 0x0;
- rinfo->riva.Clip->WidthHeight = 0x80008000;
- riva_setup_ROP(rinfo);
- wait_for_idle(rinfo);
- }
- static void riva_rectfill(struct rivafb_info *rinfo, int sy,
- int sx, int height, int width, u_int color)
- {
- RIVA_FIFO_FREE(rinfo->riva, Bitmap, 1);
- rinfo->riva.Bitmap->Color1A = color;
- RIVA_FIFO_FREE(rinfo->riva, Bitmap, 2);
- rinfo->riva.Bitmap->UnclippedRectangle[0].TopLeft = (sx << 16) | sy;
- rinfo->riva.Bitmap->UnclippedRectangle[0].WidthHeight = (width << 16) | height;
- }
- static void fbcon_riva_bmove(struct display *p, int sy, int sx, int dy, int dx,
- int height, int width)
- {
- struct rivafb_info *rinfo = (struct rivafb_info *)(p->fb_info);
- sx *= fontwidth(p);
- sy *= fontheight(p);
- dx *= fontwidth(p);
- dy *= fontheight(p);
- width *= fontwidth(p);
- height *= fontheight(p);
- RIVA_FIFO_FREE(rinfo->riva, Blt, 3);
- rinfo->riva.Blt->TopLeftSrc = (sy << 16) | sx;
- rinfo->riva.Blt->TopLeftDst = (dy << 16) | dx;
- rinfo->riva.Blt->WidthHeight = (height << 16) | width;
- wait_for_idle(rinfo);
- }
- static void riva_clear_margins(struct vc_data *conp, struct display *p,
- int bottom_only, u32 bgx)
- {
- struct rivafb_info *rinfo = (struct rivafb_info *)(p->fb_info);
- unsigned int right_start = conp->vc_cols*fontwidth(p);
- unsigned int bottom_start = conp->vc_rows*fontheight(p);
- unsigned int right_width, bottom_width;
- if (!bottom_only && (right_width = p->var.xres - right_start))
- riva_rectfill(rinfo, 0, right_start, p->var.yres_virtual,
- right_width, bgx);
- if ((bottom_width = p->var.yres - bottom_start))
- riva_rectfill(rinfo, p->var.yoffset + bottom_start, 0,
- bottom_width, right_start, bgx);
- }
- static u8 byte_rev[256] = {
- 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0, 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
- 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8, 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
- 0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4, 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
- 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec, 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
- 0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2, 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
- 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea, 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
- 0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6, 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
- 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee, 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
- 0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1, 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
- 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9, 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
- 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5, 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
- 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed, 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
- 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3, 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
- 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb, 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
- 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7, 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
- 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef, 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff,
- };
- static inline void fbcon_reverse_order(u32 *l)
- {
- u8 *a = (u8 *)l;
- *a = byte_rev[*a], a++;
- /* *a = byte_rev[*a], a++;
- *a = byte_rev[*a], a++;*/
- *a = byte_rev[*a];
- }
- static void fbcon_riva_writechr(struct vc_data *conp, struct display *p,
- int c, int fgx, int bgx, int yy, int xx)
- {
- u8 *cdat;
- struct rivafb_info *rinfo = (struct rivafb_info *)(p->fb_info);
- int w, h;
- volatile u32 *d;
- u32 cdat2;
- int i, j, cnt;
- w = fontwidth(p);
- h = fontheight(p);
- if (w <= 8)
- cdat = p->fontdata + (c & p->charmask) * h;
- else
- cdat = p->fontdata + ((c & p->charmask) * h << 1);
- RIVA_FIFO_FREE(rinfo->riva, Bitmap, 7);
- rinfo->riva.Bitmap->ClipE.TopLeft = (yy << 16) | (xx & 0xFFFF);
- rinfo->riva.Bitmap->ClipE.BottomRight = ((yy+h) << 16) | ((xx+w) & 0xffff);
- rinfo->riva.Bitmap->Color0E = bgx;
- rinfo->riva.Bitmap->Color1E = fgx;
- rinfo->riva.Bitmap->WidthHeightInE = (h << 16) | 32;
- rinfo->riva.Bitmap->WidthHeightOutE = (h << 16) | 32;
- rinfo->riva.Bitmap->PointE = (yy << 16) | (xx & 0xFFFF);
-
- d = &rinfo->riva.Bitmap->MonochromeData01E;
- for (i = h; i > 0; i-=16) {
- if (i >= 16)
- cnt = 16;
- else
- cnt = i;
- RIVA_FIFO_FREE(rinfo->riva, Bitmap, cnt);
- for (j = 0; j < cnt; j++) {
- if (w <= 8)
- cdat2 = *cdat++;
- else
- cdat2 = *((u16*)cdat)++;
- fbcon_reverse_order(&cdat2);
- d[j] = cdat2;
- }
- }
- }
- #ifdef FBCON_HAS_CFB8
- void fbcon_riva8_setup(struct display *p)
- {
- p->next_line = p->line_length ? p->line_length : p->var.xres_virtual;
- p->next_plane = 0;
- }
- static void fbcon_riva8_clear(struct vc_data *conp, struct display *p, int sy,
- int sx, int height, int width)
- {
- u32 bgx;
- struct rivafb_info *rinfo = (struct rivafb_info *)(p->fb_info);
- bgx = attr_bgcol_ec(p, conp);
- sx *= fontwidth(p);
- sy *= fontheight(p);
- width *= fontwidth(p);
- height *= fontheight(p);
- riva_rectfill(rinfo, sy, sx, height, width, bgx);
- }
- static void fbcon_riva8_putc(struct vc_data *conp, struct display *p, int c,
- int yy, int xx)
- {
- u32 fgx,bgx;
- fgx = attr_fgcol(p,c);
- bgx = attr_bgcol(p,c);
-
- xx *= fontwidth(p);
- yy *= fontheight(p);
- fbcon_riva_writechr(conp, p, c, fgx, bgx, yy, xx);
- }
- static void fbcon_riva8_putcs(struct vc_data *conp, struct display *p,
- const unsigned short *s, int count, int yy,
- int xx)
- {
- u16 c;
- u32 fgx,bgx;
- xx *= fontwidth(p);
- yy *= fontheight(p);
- c = scr_readw(s);
- fgx = attr_fgcol(p, c);
- bgx = attr_bgcol(p, c);
- while (count--) {
- c = scr_readw(s++);
- fbcon_riva_writechr(conp, p, c, fgx, bgx, yy, xx);
- xx += fontwidth(p);
- }
- }
- static void fbcon_riva8_revc(struct display *p, int xx, int yy)
- {
- struct rivafb_info *rinfo = (struct rivafb_info *) (p->fb_info);
- xx *= fontwidth(p);
- yy *= fontheight(p);
- RIVA_FIFO_FREE(rinfo->riva, Rop, 1);
- rinfo->riva.Rop->Rop3 = 0x66; // XOR
- riva_rectfill(rinfo, yy, xx, fontheight(p), fontwidth(p), 0x0f);
- RIVA_FIFO_FREE(rinfo->riva, Rop, 1);
- rinfo->riva.Rop->Rop3 = 0xCC; // back to COPY
- }
- static void fbcon_riva8_clear_margins(struct vc_data *conp, struct display *p,
- int bottom_only)
- {
- riva_clear_margins(conp, p, bottom_only, attr_bgcol_ec(p, conp));
- }
- struct display_switch fbcon_riva8 = {
- setup: fbcon_riva8_setup,
- bmove: fbcon_riva_bmove,
- clear: fbcon_riva8_clear,
- putc: fbcon_riva8_putc,
- putcs: fbcon_riva8_putcs,
- revc: fbcon_riva8_revc,
- clear_margins: fbcon_riva8_clear_margins,
- fontwidthmask: FONTWIDTHRANGE(4, 16)
- };
- #endif
- #if defined(FBCON_HAS_CFB16) || defined(FBCON_HAS_CFB32)
- static void fbcon_riva1632_revc(struct display *p, int xx, int yy)
- {
- struct rivafb_info *rinfo = (struct rivafb_info *) (p->fb_info);
- xx *= fontwidth(p);
- yy *= fontheight(p);
- RIVA_FIFO_FREE(rinfo->riva, Rop, 1);
- rinfo->riva.Rop->Rop3 = 0x66; // XOR
- riva_rectfill(rinfo, yy, xx, fontheight(p), fontwidth(p), 0xffffffff);
- RIVA_FIFO_FREE(rinfo->riva, Rop, 1);
- rinfo->riva.Rop->Rop3 = 0xCC; // back to COPY
- }
- #endif
- #ifdef FBCON_HAS_CFB16
- void fbcon_riva16_setup(struct display *p)
- {
- p->next_line = p->line_length ? p->line_length : p->var.xres_virtual<<1;
- p->next_plane = 0;
- }
- static void fbcon_riva16_clear(struct vc_data *conp, struct display *p, int sy,
- int sx, int height, int width)
- {
- u32 bgx;
- struct rivafb_info *rinfo = (struct rivafb_info *)(p->fb_info);
- bgx = ((u_int16_t*)p->dispsw_data)[attr_bgcol_ec(p, conp)];
- sx *= fontwidth(p);
- sy *= fontheight(p);
- width *= fontwidth(p);
- height *= fontheight(p);
- riva_rectfill(rinfo, sy, sx, height, width, bgx);
- }
- static inline void convert_bgcolor_16(u32 *col)
- {
- *col = ((*col & 0x00007C00) << 9)
- | ((*col & 0x000003E0) << 6)
- | ((*col & 0x0000001F) << 3)
- | 0xFF000000;
- }
- static void fbcon_riva16_putc(struct vc_data *conp, struct display *p, int c,
- int yy, int xx)
- {
- u32 fgx,bgx;
- fgx = ((u16 *)p->dispsw_data)[attr_fgcol(p,c)];
- bgx = ((u16 *)p->dispsw_data)[attr_bgcol(p,c)];
- if (p->var.green.length == 6)
- convert_bgcolor_16(&bgx);
- xx *= fontwidth(p);
- yy *= fontheight(p);
- fbcon_riva_writechr(conp, p, c, fgx, bgx, yy, xx);
- }
- static void fbcon_riva16_putcs(struct vc_data *conp, struct display *p,
- const unsigned short *s, int count, int yy,
- int xx)
- {
- u16 c;
- u32 fgx,bgx;
- xx *= fontwidth(p);
- yy *= fontheight(p);
- c = scr_readw(s);
- fgx = ((u16 *)p->dispsw_data)[attr_fgcol(p, c)];
- bgx = ((u16 *)p->dispsw_data)[attr_bgcol(p, c)];
- if (p->var.green.length == 6)
- convert_bgcolor_16(&bgx);
- while (count--) {
- c = scr_readw(s++);
- fbcon_riva_writechr(conp, p, c, fgx, bgx, yy, xx);
- xx += fontwidth(p);
- }
- }
- static void fbcon_riva16_clear_margins(struct vc_data *conp, struct display *p,
- int bottom_only)
- {
- riva_clear_margins(conp, p, bottom_only, ((u16 *)p->dispsw_data)[attr_bgcol_ec(p, conp)]);
- }
- struct display_switch fbcon_riva16 = {
- setup: fbcon_riva16_setup,
- bmove: fbcon_riva_bmove,
- clear: fbcon_riva16_clear,
- putc: fbcon_riva16_putc,
- putcs: fbcon_riva16_putcs,
- revc: fbcon_riva1632_revc,
- clear_margins: fbcon_riva16_clear_margins,
- fontwidthmask: FONTWIDTHRANGE(4, 16)
- };
- #endif
- #ifdef FBCON_HAS_CFB32
- void fbcon_riva32_setup(struct display *p)
- {
- p->next_line = p->line_length ? p->line_length : p->var.xres_virtual<<2;
- p->next_plane = 0;
- }
- static void fbcon_riva32_clear(struct vc_data *conp, struct display *p, int sy,
- int sx, int height, int width)
- {
- u32 bgx;
- struct rivafb_info *rinfo = (struct rivafb_info *)(p->fb_info);
- bgx = ((u_int32_t*)p->dispsw_data)[attr_bgcol_ec(p, conp)];
- sx *= fontwidth(p);
- sy *= fontheight(p);
- width *= fontwidth(p);
- height *= fontheight(p);
- riva_rectfill(rinfo, sy, sx, height, width, bgx);
- }
- static void fbcon_riva32_putc(struct vc_data *conp, struct display *p, int c,
- int yy, int xx)
- {
- u32 fgx,bgx;
- fgx = ((u32 *)p->dispsw_data)[attr_fgcol(p,c)];
- bgx = ((u32 *)p->dispsw_data)[attr_bgcol(p,c)];
- xx *= fontwidth(p);
- yy *= fontheight(p);
- fbcon_riva_writechr(conp, p, c, fgx, bgx, yy, xx);
- }
- static void fbcon_riva32_putcs(struct vc_data *conp, struct display *p,
- const unsigned short *s, int count, int yy,
- int xx)
- {
- u16 c;
- u32 fgx,bgx;
- xx *= fontwidth(p);
- yy *= fontheight(p);
- c = scr_readw(s);
- fgx = ((u32 *)p->dispsw_data)[attr_fgcol(p, c)];
- bgx = ((u32 *)p->dispsw_data)[attr_bgcol(p, c)];
- while (count--) {
- c = scr_readw(s++);
- fbcon_riva_writechr(conp, p, c, fgx, bgx, yy, xx);
- xx += fontwidth(p);
- }
- }
- static void fbcon_riva32_clear_margins(struct vc_data *conp, struct display *p,
- int bottom_only)
- {
- riva_clear_margins(conp, p, bottom_only, ((u32 *)p->dispsw_data)[attr_bgcol_ec(p, conp)]);
- }
- struct display_switch fbcon_riva32 = {
- setup: fbcon_riva32_setup,
- bmove: fbcon_riva_bmove,
- clear: fbcon_riva32_clear,
- putc: fbcon_riva32_putc,
- putcs: fbcon_riva32_putcs,
- revc: fbcon_riva1632_revc,
- clear_margins: fbcon_riva32_clear_margins,
- fontwidthmask: FONTWIDTHRANGE(4, 16)
- };
- #endif