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path: root/drivers/video/console/fbcon_ccw.c
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Diffstat (limited to 'drivers/video/console/fbcon_ccw.c')
-rw-r--r--drivers/video/console/fbcon_ccw.c424
1 files changed, 0 insertions, 424 deletions
diff --git a/drivers/video/console/fbcon_ccw.c b/drivers/video/console/fbcon_ccw.c
deleted file mode 100644
index 5a3cbf6dff4d..000000000000
--- a/drivers/video/console/fbcon_ccw.c
+++ /dev/null
@@ -1,424 +0,0 @@
-/*
- * linux/drivers/video/console/fbcon_ccw.c -- Software Rotation - 270 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 270 degrees
- */
-
-static void ccw_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;
- int mod = vc->vc_font.height % 8;
- u8 c, msk = ~(0xff << offset), msk1 = 0;
-
- if (mod)
- msk <<= (8 - mod);
-
- if (offset > mod)
- msk1 |= 0x01;
-
- for (i = 0; i < vc->vc_font.width; i++) {
- for (j = 0; j < width; j++) {
- c = *src;
-
- if (attribute & FBCON_ATTRIBUTE_UNDERLINE) {
- if (j == width - 1)
- c |= msk;
-
- if (msk1 && j == width - 2)
- c |= msk1;
- }
-
- if (attribute & FBCON_ATTRIBUTE_BOLD && i)
- *(dst - width) |= c;
-
- if (attribute & FBCON_ATTRIBUTE_REVERSE)
- c = ~c;
- src++;
- *dst++ = c;
- }
- }
-}
-
-
-static void ccw_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 vyres = GETVYRES(ops->p->scrollmode, info);
-
- area.sx = sy * vc->vc_font.height;
- area.sy = vyres - ((sx + width) * vc->vc_font.width);
- area.dx = dy * vc->vc_font.height;
- area.dy = vyres - ((dx + width) * 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 ccw_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 vyres = GETVYRES(ops->p->scrollmode, info);
-
- region.color = attr_bgcol_ec(bgshift,vc,info);
- region.dx = sy * vc->vc_font.height;
- region.dy = vyres - ((sx + width) * 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, &region);
-}
-
-static inline void ccw_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) {
- ccw_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 ccw_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 vyres = GETVYRES(ops->p->scrollmode, info);
-
- if (!ops->fontbuffer)
- return;
-
- image.fg_color = fg;
- image.bg_color = bg;
- image.dx = yy * vc->vc_font.height;
- image.dy = vyres - ((xx + count) * vc->vc_font.width);
- image.width = vc->vc_font.height;
- image.depth = 1;
-
- if (attribute) {
- buf = kmalloc(cellsize, GFP_KERNEL);
- if (!buf)
- return;
- }
-
- s += count - 1;
-
- 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;
- ccw_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 ccw_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 bs = vc->vc_rows*ch;
- struct fb_fillrect region;
-
- region.color = 0;
- region.rop = ROP_COPY;
-
- if (rw && !bottom_only) {
- region.dx = 0;
- region.dy = info->var.yoffset;
- region.height = rw;
- region.width = info->var.xres_virtual;
- info->fbops->fb_fillrect(info, &region);
- }
-
- if (bh) {
- region.dx = info->var.xoffset + bs;
- region.dy = 0;
- region.height = info->var.yres_virtual;
- region.width = bh;
- info->fbops->fb_fillrect(info, &region);
- }
-}
-
-static void ccw_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 vyres = GETVYRES(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;
- ccw_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 = y * vc->vc_font.height;
- dy = vyres - ((vc->vc_x + 1) * 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_ccw(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 ccw_update_start(struct fb_info *info)
-{
- struct fbcon_ops *ops = info->fbcon_par;
- u32 yoffset;
- u32 vyres = GETVYRES(ops->p->scrollmode, info);
- int err;
-
- yoffset = (vyres - info->var.yres) - ops->var.xoffset;
- ops->var.xoffset = ops->var.yoffset;
- ops->var.yoffset = yoffset;
- 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_ccw(struct fbcon_ops *ops)
-{
- ops->bmove = ccw_bmove;
- ops->clear = ccw_clear;
- ops->putcs = ccw_putcs;
- ops->clear_margins = ccw_clear_margins;
- ops->cursor = ccw_cursor;
- ops->update_start = ccw_update_start;
-}
-EXPORT_SYMBOL(fbcon_rotate_ccw);
-
-MODULE_AUTHOR("Antonino Daplas <adaplas@pol.net>");
-MODULE_DESCRIPTION("Console Rotation (270 degrees) Support");
-MODULE_LICENSE("GPL");
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