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 <asm/types.h>
17 #include "fbcon.h"
18
19 static void tile_bmove(struct vc_data *vc, struct fb_info *info, int sy,
20 int sx, int dy, int dx, int height, int width)
21 {
22 struct fb_tilearea area;
23
24 area.sx = sx;
25 area.sy = sy;
26 area.dx = dx;
27 area.dy = dy;
28 area.height = height;
29 area.width = width;
30
31 info->tileops->fb_tilecopy(info, &area);
32 }
33
34 static void tile_clear(struct vc_data *vc, struct fb_info *info, int sy,
35 int sx, int height, int width)
36 {
37 struct fb_tilerect rect;
38 int bgshift = (vc->vc_hi_font_mask) ? 13 : 12;
39 int fgshift = (vc->vc_hi_font_mask) ? 9 : 8;
40
41 rect.index = vc->vc_video_erase_char &
42 ((vc->vc_hi_font_mask) ? 0x1ff : 0xff);
43 rect.fg = attr_fgcol_ec(fgshift, vc, info);
44 rect.bg = attr_bgcol_ec(bgshift, vc, info);
45 rect.sx = sx;
46 rect.sy = sy;
47 rect.width = width;
48 rect.height = height;
49 rect.rop = ROP_COPY;
50
51 info->tileops->fb_tilefill(info, &rect);
52 }
53
54 static void tile_putcs(struct vc_data *vc, struct fb_info *info,
55 const unsigned short *s, int count, int yy, int xx,
56 int fg, int bg)
57 {
58 struct fb_tileblit blit;
59 unsigned short charmask = vc->vc_hi_font_mask ? 0x1ff : 0xff;
60 int size = sizeof(u32) * count, i;
61
62 blit.sx = xx;
63 blit.sy = yy;
64 blit.width = count;
65 blit.height = 1;
66 blit.fg = fg;
67 blit.bg = bg;
68 blit.length = count;
69 blit.indices = (u32 *) fb_get_buffer_offset(info, &info->pixmap, size);
70 for (i = 0; i < count; i++)
71 blit.indices[i] = (u32)(scr_readw(s++) & charmask);
72
73 info->tileops->fb_tileblit(info, &blit);
74 }
75
76 static void tile_clear_margins(struct vc_data *vc, struct fb_info *info,
77 int bottom_only)
78 {
79 return;
80 }
81
82 static void tile_cursor(struct vc_data *vc, struct fb_info *info, int mode,
83 int softback_lines, int fg, int bg)
84 {
85 struct fb_tilecursor cursor;
86 int use_sw = (vc->vc_cursor_type & 0x01);
87
88 cursor.sx = vc->vc_x;
89 cursor.sy = vc->vc_y;
90 cursor.mode = (mode == CM_ERASE || use_sw) ? 0 : 1;
91 cursor.fg = fg;
92 cursor.bg = bg;
93
94 switch (vc->vc_cursor_type & 0x0f) {
95 case CUR_NONE:
96 cursor.shape = FB_TILE_CURSOR_NONE;
97 break;
98 case CUR_UNDERLINE:
99 cursor.shape = FB_TILE_CURSOR_UNDERLINE;
100 break;
101 case CUR_LOWER_THIRD:
102 cursor.shape = FB_TILE_CURSOR_LOWER_THIRD;
103 break;
104 case CUR_LOWER_HALF:
105 cursor.shape = FB_TILE_CURSOR_LOWER_HALF;
106 break;
107 case CUR_TWO_THIRDS:
108 cursor.shape = FB_TILE_CURSOR_TWO_THIRDS;
109 break;
110 case CUR_BLOCK:
111 default:
112 cursor.shape = FB_TILE_CURSOR_BLOCK;
113 break;
114 }
115
116 info->tileops->fb_tilecursor(info, &cursor);
117 }
118
119 static int tile_update_start(struct fb_info *info)
120 {
121 struct fbcon_ops *ops = info->fbcon_par;
122 int err;
123
124 err = fb_pan_display(info, &ops->var);
125 ops->var.xoffset = info->var.xoffset;
126 ops->var.yoffset = info->var.yoffset;
127 ops->var.vmode = info->var.vmode;
128 return err;
129 }
130
131 void fbcon_set_tileops(struct vc_data *vc, struct fb_info *info)
132 {
133 struct fb_tilemap map;
134 struct fbcon_ops *ops = info->fbcon_par;
135
136 ops->bmove = tile_bmove;
137 ops->clear = tile_clear;
138 ops->putcs = tile_putcs;
139 ops->clear_margins = tile_clear_margins;
140 ops->cursor = tile_cursor;
141 ops->update_start = tile_update_start;
142
143 if (ops->p) {
144 map.width = vc->vc_font.width;
145 map.height = vc->vc_font.height;
146 map.depth = 1;
147 map.length = (ops->p->userfont) ?
148 FNTCHARCNT(ops->p->fontdata) : 256;
149 map.data = ops->p->fontdata;
150 info->tileops->fb_settile(info, &map);
151 }
152 }
153
154 EXPORT_SYMBOL(fbcon_set_tileops);
155
156 MODULE_AUTHOR("Antonino Daplas <adaplas@pol.net>");
157 MODULE_DESCRIPTION("Tile Blitting Operation");
158 MODULE_LICENSE("GPL");
159
160
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