diff options
Diffstat (limited to 'drivers/video/console/fbcon_cw.c')
-rw-r--r-- | drivers/video/console/fbcon_cw.c | 407 |
1 files changed, 0 insertions, 407 deletions
diff --git a/drivers/video/console/fbcon_cw.c b/drivers/video/console/fbcon_cw.c deleted file mode 100644 index e7ee44db4e98..000000000000 --- a/drivers/video/console/fbcon_cw.c +++ /dev/null @@ -1,407 +0,0 @@ -/* - * linux/drivers/video/console/fbcon_ud.c -- Software Rotation - 90 degrees - * - * Copyright (C) 2005 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/slab.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" -#include "fbcon_rotate.h" - -/* - * Rotation 90 degrees - */ - -static void cw_update_attr(u8 *dst, u8 *src, int attribute, - struct vc_data *vc) -{ - int i, j, offset = (vc->vc_font.height < 10) ? 1 : 2; - int width = (vc->vc_font.height + 7) >> 3; - u8 c, msk = ~(0xff >> offset); - - for (i = 0; i < vc->vc_font.width; i++) { - for (j = 0; j < width; j++) { - c = *src; - if (attribute & FBCON_ATTRIBUTE_UNDERLINE && !j) - c |= msk; - if (attribute & FBCON_ATTRIBUTE_BOLD && i) - c |= *(src-width); - if (attribute & FBCON_ATTRIBUTE_REVERSE) - c = ~c; - src++; - *dst++ = c; - } - } -} - - -static void cw_bmove(struct vc_data *vc, struct fb_info *info, int sy, - int sx, int dy, int dx, int height, int width) -{ - struct fbcon_ops *ops = info->fbcon_par; - struct fb_copyarea area; - u32 vxres = GETVXRES(ops->p->scrollmode, info); - - area.sx = vxres - ((sy + height) * vc->vc_font.height); - area.sy = sx * vc->vc_font.width; - area.dx = vxres - ((dy + height) * vc->vc_font.height); - area.dy = dx * vc->vc_font.width; - area.width = height * vc->vc_font.height; - area.height = width * vc->vc_font.width; - - info->fbops->fb_copyarea(info, &area); -} - -static void cw_clear(struct vc_data *vc, struct fb_info *info, int sy, - int sx, int height, int width) -{ - struct fbcon_ops *ops = info->fbcon_par; - struct fb_fillrect region; - int bgshift = (vc->vc_hi_font_mask) ? 13 : 12; - u32 vxres = GETVXRES(ops->p->scrollmode, info); - - region.color = attr_bgcol_ec(bgshift,vc,info); - region.dx = vxres - ((sy + height) * vc->vc_font.height); - region.dy = sx * vc->vc_font.width; - region.height = width * vc->vc_font.width; - region.width = height * vc->vc_font.height; - region.rop = ROP_COPY; - - info->fbops->fb_fillrect(info, ®ion); -} - -static inline void cw_putcs_aligned(struct vc_data *vc, struct fb_info *info, - const u16 *s, u32 attr, u32 cnt, - u32 d_pitch, u32 s_pitch, u32 cellsize, - struct fb_image *image, u8 *buf, u8 *dst) -{ - struct fbcon_ops *ops = info->fbcon_par; - u16 charmask = vc->vc_hi_font_mask ? 0x1ff : 0xff; - u32 idx = (vc->vc_font.height + 7) >> 3; - u8 *src; - - while (cnt--) { - src = ops->fontbuffer + (scr_readw(s++) & charmask)*cellsize; - - if (attr) { - cw_update_attr(buf, src, attr, vc); - src = buf; - } - - if (likely(idx == 1)) - __fb_pad_aligned_buffer(dst, d_pitch, src, idx, - vc->vc_font.width); - else - fb_pad_aligned_buffer(dst, d_pitch, src, idx, - vc->vc_font.width); - - dst += d_pitch * vc->vc_font.width; - } - - info->fbops->fb_imageblit(info, image); -} - -static void cw_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_image image; - struct fbcon_ops *ops = info->fbcon_par; - u32 width = (vc->vc_font.height + 7)/8; - u32 cellsize = width * vc->vc_font.width; - u32 maxcnt = info->pixmap.size/cellsize; - u32 scan_align = info->pixmap.scan_align - 1; - u32 buf_align = info->pixmap.buf_align - 1; - u32 cnt, pitch, size; - u32 attribute = get_attribute(info, scr_readw(s)); - u8 *dst, *buf = NULL; - u32 vxres = GETVXRES(ops->p->scrollmode, info); - - if (!ops->fontbuffer) - return; - - image.fg_color = fg; - image.bg_color = bg; - image.dx = vxres - ((yy + 1) * vc->vc_font.height); - image.dy = xx * vc->vc_font.width; - image.width = vc->vc_font.height; - image.depth = 1; - - if (attribute) { - buf = kmalloc(cellsize, GFP_KERNEL); - if (!buf) - return; - } - - while (count) { - if (count > maxcnt) - cnt = maxcnt; - else - cnt = count; - - image.height = vc->vc_font.width * cnt; - pitch = ((image.width + 7) >> 3) + scan_align; - pitch &= ~scan_align; - size = pitch * image.height + buf_align; - size &= ~buf_align; - dst = fb_get_buffer_offset(info, &info->pixmap, size); - image.data = dst; - cw_putcs_aligned(vc, info, s, attribute, cnt, pitch, - width, cellsize, &image, buf, dst); - image.dy += image.height; - count -= cnt; - s += cnt; - } - - /* buf is always NULL except when in monochrome mode, so in this case - it's a gain to check buf against NULL even though kfree() handles - NULL pointers just fine */ - if (unlikely(buf)) - kfree(buf); - -} - -static void cw_clear_margins(struct vc_data *vc, struct fb_info *info, - int bottom_only) -{ - unsigned int cw = vc->vc_font.width; - unsigned int ch = vc->vc_font.height; - unsigned int rw = info->var.yres - (vc->vc_cols*cw); - unsigned int bh = info->var.xres - (vc->vc_rows*ch); - unsigned int rs = info->var.yres - rw; - struct fb_fillrect region; - - region.color = 0; - region.rop = ROP_COPY; - - if (rw && !bottom_only) { - region.dx = 0; - region.dy = info->var.yoffset + rs; - region.height = rw; - region.width = info->var.xres_virtual; - info->fbops->fb_fillrect(info, ®ion); - } - - if (bh) { - region.dx = info->var.xoffset; - region.dy = info->var.yoffset; - region.height = info->var.yres; - region.width = bh; - info->fbops->fb_fillrect(info, ®ion); - } -} - -static void cw_cursor(struct vc_data *vc, struct fb_info *info, int mode, - int softback_lines, int fg, int bg) -{ - struct fb_cursor cursor; - struct fbcon_ops *ops = info->fbcon_par; - unsigned short charmask = vc->vc_hi_font_mask ? 0x1ff : 0xff; - int w = (vc->vc_font.height + 7) >> 3, c; - int y = real_y(ops->p, vc->vc_y); - int attribute, use_sw = (vc->vc_cursor_type & 0x10); - int err = 1, dx, dy; - char *src; - u32 vxres = GETVXRES(ops->p->scrollmode, info); - - if (!ops->fontbuffer) - return; - - cursor.set = 0; - - if (softback_lines) { - if (y + softback_lines >= vc->vc_rows) { - mode = CM_ERASE; - ops->cursor_flash = 0; - return; - } else - y += softback_lines; - } - - c = scr_readw((u16 *) vc->vc_pos); - attribute = get_attribute(info, c); - src = ops->fontbuffer + ((c & charmask) * (w * vc->vc_font.width)); - - if (ops->cursor_state.image.data != src || - ops->cursor_reset) { - ops->cursor_state.image.data = src; - cursor.set |= FB_CUR_SETIMAGE; - } - - if (attribute) { - u8 *dst; - - dst = kmalloc(w * vc->vc_font.width, GFP_ATOMIC); - if (!dst) - return; - kfree(ops->cursor_data); - ops->cursor_data = dst; - cw_update_attr(dst, src, attribute, vc); - src = dst; - } - - if (ops->cursor_state.image.fg_color != fg || - ops->cursor_state.image.bg_color != bg || - ops->cursor_reset) { - ops->cursor_state.image.fg_color = fg; - ops->cursor_state.image.bg_color = bg; - cursor.set |= FB_CUR_SETCMAP; - } - - if (ops->cursor_state.image.height != vc->vc_font.width || - ops->cursor_state.image.width != vc->vc_font.height || - ops->cursor_reset) { - ops->cursor_state.image.height = vc->vc_font.width; - ops->cursor_state.image.width = vc->vc_font.height; - cursor.set |= FB_CUR_SETSIZE; - } - - dx = vxres - ((y * vc->vc_font.height) + vc->vc_font.height); - dy = vc->vc_x * vc->vc_font.width; - - if (ops->cursor_state.image.dx != dx || - ops->cursor_state.image.dy != dy || - ops->cursor_reset) { - ops->cursor_state.image.dx = dx; - ops->cursor_state.image.dy = dy; - cursor.set |= FB_CUR_SETPOS; - } - - if (ops->cursor_state.hot.x || ops->cursor_state.hot.y || - ops->cursor_reset) { - ops->cursor_state.hot.x = cursor.hot.y = 0; - cursor.set |= FB_CUR_SETHOT; - } - - if (cursor.set & FB_CUR_SETSIZE || - vc->vc_cursor_type != ops->p->cursor_shape || - ops->cursor_state.mask == NULL || - ops->cursor_reset) { - char *tmp, *mask = kmalloc(w*vc->vc_font.width, GFP_ATOMIC); - int cur_height, size, i = 0; - int width = (vc->vc_font.width + 7)/8; - - if (!mask) - return; - - tmp = kmalloc(width * vc->vc_font.height, GFP_ATOMIC); - - if (!tmp) { - kfree(mask); - return; - } - - kfree(ops->cursor_state.mask); - ops->cursor_state.mask = mask; - - ops->p->cursor_shape = vc->vc_cursor_type; - cursor.set |= FB_CUR_SETSHAPE; - - switch (ops->p->cursor_shape & CUR_HWMASK) { - case CUR_NONE: - cur_height = 0; - break; - case CUR_UNDERLINE: - cur_height = (vc->vc_font.height < 10) ? 1 : 2; - break; - case CUR_LOWER_THIRD: - cur_height = vc->vc_font.height/3; - break; - case CUR_LOWER_HALF: - cur_height = vc->vc_font.height >> 1; - break; - case CUR_TWO_THIRDS: - cur_height = (vc->vc_font.height << 1)/3; - break; - case CUR_BLOCK: - default: - cur_height = vc->vc_font.height; - break; - } - - size = (vc->vc_font.height - cur_height) * width; - while (size--) - tmp[i++] = 0; - size = cur_height * width; - while (size--) - tmp[i++] = 0xff; - memset(mask, 0, w * vc->vc_font.width); - rotate_cw(tmp, mask, vc->vc_font.width, vc->vc_font.height); - kfree(tmp); - } - - switch (mode) { - case CM_ERASE: - ops->cursor_state.enable = 0; - break; - case CM_DRAW: - case CM_MOVE: - default: - ops->cursor_state.enable = (use_sw) ? 0 : 1; - break; - } - - cursor.image.data = src; - cursor.image.fg_color = ops->cursor_state.image.fg_color; - cursor.image.bg_color = ops->cursor_state.image.bg_color; - cursor.image.dx = ops->cursor_state.image.dx; - cursor.image.dy = ops->cursor_state.image.dy; - cursor.image.height = ops->cursor_state.image.height; - cursor.image.width = ops->cursor_state.image.width; - cursor.hot.x = ops->cursor_state.hot.x; - cursor.hot.y = ops->cursor_state.hot.y; - cursor.mask = ops->cursor_state.mask; - cursor.enable = ops->cursor_state.enable; - cursor.image.depth = 1; - cursor.rop = ROP_XOR; - - if (info->fbops->fb_cursor) - err = info->fbops->fb_cursor(info, &cursor); - - if (err) - soft_cursor(info, &cursor); - - ops->cursor_reset = 0; -} - -static int cw_update_start(struct fb_info *info) -{ - struct fbcon_ops *ops = info->fbcon_par; - u32 vxres = GETVXRES(ops->p->scrollmode, info); - u32 xoffset; - int err; - - xoffset = vxres - (info->var.xres + ops->var.yoffset); - ops->var.yoffset = ops->var.xoffset; - ops->var.xoffset = xoffset; - 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_rotate_cw(struct fbcon_ops *ops) -{ - ops->bmove = cw_bmove; - ops->clear = cw_clear; - ops->putcs = cw_putcs; - ops->clear_margins = cw_clear_margins; - ops->cursor = cw_cursor; - ops->update_start = cw_update_start; -} -EXPORT_SYMBOL(fbcon_rotate_cw); - -MODULE_AUTHOR("Antonino Daplas <adaplas@pol.net>"); -MODULE_DESCRIPTION("Console Rotation (90 degrees) Support"); -MODULE_LICENSE("GPL"); |