drivers/video/console/fbcon_ccw.c - third_party/linux - Git at Google

 /*
  *  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/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 inline 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;
 	int bgshift = (vc->vc_hi_font_mask) ? 13 : 12;

 	region.color = attr_bgcol_ec(bgshift,vc,info);
 	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");
	/*
	* 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/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 inline 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;
	int bgshift = (vc->vc_hi_font_mask) ? 13 : 12;

	region.color = attr_bgcol_ec(bgshift,vc,info);
	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");