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path: root/drivers/video/console/tileblit.c
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Diffstat (limited to 'drivers/video/console/tileblit.c')
-rw-r--r--drivers/video/console/tileblit.c159
1 files changed, 159 insertions, 0 deletions
diff --git a/drivers/video/console/tileblit.c b/drivers/video/console/tileblit.c
new file mode 100644
index 000000000..15e8e1a89
--- /dev/null
+++ b/drivers/video/console/tileblit.c
@@ -0,0 +1,159 @@
+/*
+ * linux/drivers/video/console/tileblit.c -- Tile Blitting Operation
+ *
+ * Copyright (C) 2004 Antonino Daplas <adaplas @pol.net>
+ *
+ * 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 <linux/module.h>
+#include <linux/string.h>
+#include <linux/fb.h>
+#include <linux/vt_kern.h>
+#include <linux/console.h>
+#include <asm/types.h>
+#include "fbcon.h"
+
+static void tile_bmove(struct vc_data *vc, struct fb_info *info, int sy,
+ int sx, int dy, int dx, int height, int width)
+{
+ struct fb_tilearea area;
+
+ area.sx = sx;
+ area.sy = sy;
+ area.dx = dx;
+ area.dy = dy;
+ area.height = height;
+ area.width = width;
+
+ info->tileops->fb_tilecopy(info, &area);
+}
+
+static void tile_clear(struct vc_data *vc, struct fb_info *info, int sy,
+ int sx, int height, int width)
+{
+ struct fb_tilerect rect;
+ int bgshift = (vc->vc_hi_font_mask) ? 13 : 12;
+ int fgshift = (vc->vc_hi_font_mask) ? 9 : 8;
+
+ rect.index = vc->vc_video_erase_char &
+ ((vc->vc_hi_font_mask) ? 0x1ff : 0xff);
+ rect.fg = attr_fgcol_ec(fgshift, vc, info);
+ rect.bg = attr_bgcol_ec(bgshift, vc, info);
+ rect.sx = sx;
+ rect.sy = sy;
+ rect.width = width;
+ rect.height = height;
+ rect.rop = ROP_COPY;
+
+ info->tileops->fb_tilefill(info, &rect);
+}
+
+static void tile_putcs(struct vc_data *vc, struct fb_info *info,
+ const unsigned short *s, int count, int yy, int xx,
+ int fg, int bg)
+{
+ struct fb_tileblit blit;
+ unsigned short charmask = vc->vc_hi_font_mask ? 0x1ff : 0xff;
+ int size = sizeof(u32) * count, i;
+
+ blit.sx = xx;
+ blit.sy = yy;
+ blit.width = count;
+ blit.height = 1;
+ blit.fg = fg;
+ blit.bg = bg;
+ blit.length = count;
+ blit.indices = (u32 *) fb_get_buffer_offset(info, &info->pixmap, size);
+ for (i = 0; i < count; i++)
+ blit.indices[i] = (u32)(scr_readw(s++) & charmask);
+
+ info->tileops->fb_tileblit(info, &blit);
+}
+
+static void tile_clear_margins(struct vc_data *vc, struct fb_info *info,
+ int bottom_only)
+{
+ return;
+}
+
+static void tile_cursor(struct vc_data *vc, struct fb_info *info, int mode,
+ int softback_lines, int fg, int bg)
+{
+ struct fb_tilecursor cursor;
+ int use_sw = (vc->vc_cursor_type & 0x10);
+
+ cursor.sx = vc->vc_x;
+ cursor.sy = vc->vc_y;
+ cursor.mode = (mode == CM_ERASE || use_sw) ? 0 : 1;
+ cursor.fg = fg;
+ cursor.bg = bg;
+
+ switch (vc->vc_cursor_type & 0x0f) {
+ case CUR_NONE:
+ cursor.shape = FB_TILE_CURSOR_NONE;
+ break;
+ case CUR_UNDERLINE:
+ cursor.shape = FB_TILE_CURSOR_UNDERLINE;
+ break;
+ case CUR_LOWER_THIRD:
+ cursor.shape = FB_TILE_CURSOR_LOWER_THIRD;
+ break;
+ case CUR_LOWER_HALF:
+ cursor.shape = FB_TILE_CURSOR_LOWER_HALF;
+ break;
+ case CUR_TWO_THIRDS:
+ cursor.shape = FB_TILE_CURSOR_TWO_THIRDS;
+ break;
+ case CUR_BLOCK:
+ default:
+ cursor.shape = FB_TILE_CURSOR_BLOCK;
+ break;
+ }
+
+ info->tileops->fb_tilecursor(info, &cursor);
+}
+
+static int tile_update_start(struct fb_info *info)
+{
+ struct fbcon_ops *ops = info->fbcon_par;
+ int err;
+
+ err = fb_pan_display(info, &ops->var);
+ ops->var.xoffset = info->var.xoffset;
+ ops->var.yoffset = info->var.yoffset;
+ ops->var.vmode = info->var.vmode;
+ return err;
+}
+
+void fbcon_set_tileops(struct vc_data *vc, struct fb_info *info)
+{
+ struct fb_tilemap map;
+ struct fbcon_ops *ops = info->fbcon_par;
+
+ ops->bmove = tile_bmove;
+ ops->clear = tile_clear;
+ ops->putcs = tile_putcs;
+ ops->clear_margins = tile_clear_margins;
+ ops->cursor = tile_cursor;
+ ops->update_start = tile_update_start;
+
+ if (ops->p) {
+ map.width = vc->vc_font.width;
+ map.height = vc->vc_font.height;
+ map.depth = 1;
+ map.length = (ops->p->userfont) ?
+ FNTCHARCNT(ops->p->fontdata) : 256;
+ map.data = ops->p->fontdata;
+ info->tileops->fb_settile(info, &map);
+ }
+}
+
+EXPORT_SYMBOL(fbcon_set_tileops);
+
+MODULE_AUTHOR("Antonino Daplas <adaplas@pol.net>");
+MODULE_DESCRIPTION("Tile Blitting Operation");
+MODULE_LICENSE("GPL");
+