1 /*
2 * linux/drivers/video/console/tileblit.c -- Tile Blitting Operation
3 *
4 * Copyright (C) 2004 Antonino Daplas <adaplas @pol.net>
5 *
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file COPYING in the main directory of this archive for
8 * more details.
9 */
10
11 #include <linux/module.h>
12 #include <linux/string.h>
13 #include <linux/fb.h>
14 #include <linux/vt_kern.h>
15 #include <linux/console.h>
16 #include <linux/font.h>
17 #include <asm/types.h>
18 #include "fbcon.h"
19
tile_bmove(struct vc_data * vc,struct fb_info * info,int sy,int sx,int dy,int dx,int height,int width)20 static void tile_bmove(struct vc_data *vc, struct fb_info *info, int sy,
21 int sx, int dy, int dx, int height, int width)
22 {
23 struct fb_tilearea area;
24
25 area.sx = sx;
26 area.sy = sy;
27 area.dx = dx;
28 area.dy = dy;
29 area.height = height;
30 area.width = width;
31
32 info->tileops->fb_tilecopy(info, &area);
33 }
34
tile_clear(struct vc_data * vc,struct fb_info * info,int sy,int sx,int height,int width)35 static void tile_clear(struct vc_data *vc, struct fb_info *info, int sy,
36 int sx, int height, int width)
37 {
38 struct fb_tilerect rect;
39 int bgshift = (vc->vc_hi_font_mask) ? 13 : 12;
40 int fgshift = (vc->vc_hi_font_mask) ? 9 : 8;
41
42 rect.index = vc->vc_video_erase_char &
43 ((vc->vc_hi_font_mask) ? 0x1ff : 0xff);
44 rect.fg = attr_fgcol_ec(fgshift, vc, info);
45 rect.bg = attr_bgcol_ec(bgshift, vc, info);
46 rect.sx = sx;
47 rect.sy = sy;
48 rect.width = width;
49 rect.height = height;
50 rect.rop = ROP_COPY;
51
52 info->tileops->fb_tilefill(info, &rect);
53 }
54
tile_putcs(struct vc_data * vc,struct fb_info * info,const unsigned short * s,int count,int yy,int xx,int fg,int bg)55 static void tile_putcs(struct vc_data *vc, struct fb_info *info,
56 const unsigned short *s, int count, int yy, int xx,
57 int fg, int bg)
58 {
59 struct fb_tileblit blit;
60 unsigned short charmask = vc->vc_hi_font_mask ? 0x1ff : 0xff;
61 int size = sizeof(u32) * count, i;
62
63 blit.sx = xx;
64 blit.sy = yy;
65 blit.width = count;
66 blit.height = 1;
67 blit.fg = fg;
68 blit.bg = bg;
69 blit.length = count;
70 blit.indices = (u32 *) fb_get_buffer_offset(info, &info->pixmap, size);
71 for (i = 0; i < count; i++)
72 blit.indices[i] = (u32)(scr_readw(s++) & charmask);
73
74 info->tileops->fb_tileblit(info, &blit);
75 }
76
tile_clear_margins(struct vc_data * vc,struct fb_info * info,int color,int bottom_only)77 static void tile_clear_margins(struct vc_data *vc, struct fb_info *info,
78 int color, int bottom_only)
79 {
80 return;
81 }
82
tile_cursor(struct vc_data * vc,struct fb_info * info,int mode,int fg,int bg)83 static void tile_cursor(struct vc_data *vc, struct fb_info *info, int mode,
84 int fg, int bg)
85 {
86 struct fb_tilecursor cursor;
87 int use_sw = vc->vc_cursor_type & CUR_SW;
88
89 cursor.sx = vc->state.x;
90 cursor.sy = vc->state.y;
91 cursor.mode = (mode == CM_ERASE || use_sw) ? 0 : 1;
92 cursor.fg = fg;
93 cursor.bg = bg;
94
95 switch (vc->vc_cursor_type & 0x0f) {
96 case CUR_NONE:
97 cursor.shape = FB_TILE_CURSOR_NONE;
98 break;
99 case CUR_UNDERLINE:
100 cursor.shape = FB_TILE_CURSOR_UNDERLINE;
101 break;
102 case CUR_LOWER_THIRD:
103 cursor.shape = FB_TILE_CURSOR_LOWER_THIRD;
104 break;
105 case CUR_LOWER_HALF:
106 cursor.shape = FB_TILE_CURSOR_LOWER_HALF;
107 break;
108 case CUR_TWO_THIRDS:
109 cursor.shape = FB_TILE_CURSOR_TWO_THIRDS;
110 break;
111 case CUR_BLOCK:
112 default:
113 cursor.shape = FB_TILE_CURSOR_BLOCK;
114 break;
115 }
116
117 info->tileops->fb_tilecursor(info, &cursor);
118 }
119
tile_update_start(struct fb_info * info)120 static int tile_update_start(struct fb_info *info)
121 {
122 struct fbcon_ops *ops = info->fbcon_par;
123 int err;
124
125 err = fb_pan_display(info, &ops->var);
126 ops->var.xoffset = info->var.xoffset;
127 ops->var.yoffset = info->var.yoffset;
128 ops->var.vmode = info->var.vmode;
129 return err;
130 }
131
fbcon_set_tileops(struct vc_data * vc,struct fb_info * info)132 void fbcon_set_tileops(struct vc_data *vc, struct fb_info *info)
133 {
134 struct fb_tilemap map;
135 struct fbcon_ops *ops = info->fbcon_par;
136
137 ops->bmove = tile_bmove;
138 ops->clear = tile_clear;
139 ops->putcs = tile_putcs;
140 ops->clear_margins = tile_clear_margins;
141 ops->cursor = tile_cursor;
142 ops->update_start = tile_update_start;
143
144 if (ops->p) {
145 map.width = vc->vc_font.width;
146 map.height = vc->vc_font.height;
147 map.depth = 1;
148 map.length = (ops->p->userfont) ?
149 FNTCHARCNT(ops->p->fontdata) : 256;
150 map.data = ops->p->fontdata;
151 info->tileops->fb_settile(info, &map);
152 }
153 }
154
155 EXPORT_SYMBOL(fbcon_set_tileops);
156