[deliverable/linux.git] / drivers / video / console / fbcon_cw.c

/*
 *  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, &region);
}

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, &region);
	}

	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, &region);
	}
}

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");
Commit	Line	Data
dbcbfe1e AD	1	/*
	2	* linux/drivers/video/console/fbcon_ud.c -- Software Rotation - 90 degrees
	3	*
	4	* Copyright (C) 2005 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
dbcbfe1e	11	#include <linux/module.h>
5a0e3ad6	12	#include <linux/slab.h>
dbcbfe1e AD	13	#include <linux/string.h>
	14	#include <linux/fb.h>
	15	#include <linux/vt_kern.h>
	16	#include <linux/console.h>
	17	#include <asm/types.h>
	18	#include "fbcon.h"
	19	#include "fbcon_rotate.h"
	20
	21	/*
	22	* Rotation 90 degrees
	23	*/
	24
26c5be3c	25	static void cw_update_attr(u8 dst, u8 src, int attribute,
dbcbfe1e AD	26	struct vc_data *vc)
	27	{
	28	int i, j, offset = (vc->vc_font.height < 10) ? 1 : 2;
	29	int width = (vc->vc_font.height + 7) >> 3;
6cd472d3	30	u8 c, msk = ~(0xff >> offset);
dbcbfe1e AD	31
	32	for (i = 0; i < vc->vc_font.width; i++) {
	33	for (j = 0; j < width; j++) {
	34	c = *src;
	35	if (attribute & FBCON_ATTRIBUTE_UNDERLINE && !j)
	36	c \|= msk;
	37	if (attribute & FBCON_ATTRIBUTE_BOLD && i)
	38	c \|= *(src-width);
	39	if (attribute & FBCON_ATTRIBUTE_REVERSE)
	40	c = ~c;
	41	src++;
	42	*dst++ = c;
dbcbfe1e AD	43	}
	44	}
	45	}
	46
	47
	48	static void cw_bmove(struct vc_data vc, struct fb_info info, int sy,
	49	int sx, int dy, int dx, int height, int width)
	50	{
ab767201	51	struct fbcon_ops *ops = info->fbcon_par;
dbcbfe1e	52	struct fb_copyarea area;
ab767201	53	u32 vxres = GETVXRES(ops->p->scrollmode, info);
dbcbfe1e AD	54
	55	area.sx = vxres - ((sy + height) * vc->vc_font.height);
	56	area.sy = sx * vc->vc_font.width;
	57	area.dx = vxres - ((dy + height) * vc->vc_font.height);
	58	area.dy = dx * vc->vc_font.width;
	59	area.width = height * vc->vc_font.height;
	60	area.height = width * vc->vc_font.width;
	61
	62	info->fbops->fb_copyarea(info, &area);
	63	}
	64
	65	static void cw_clear(struct vc_data vc, struct fb_info info, int sy,
	66	int sx, int height, int width)
	67	{
ab767201	68	struct fbcon_ops *ops = info->fbcon_par;
dbcbfe1e AD	69	struct fb_fillrect region;
dbcbfe1e AD	70	int bgshift = (vc->vc_hi_font_mask) ? 13 : 12;
ab767201	71	u32 vxres = GETVXRES(ops->p->scrollmode, info);
dbcbfe1e	72
91c43132	73	region.color = attr_bgcol_ec(bgshift,vc,info);
dbcbfe1e AD	74	region.dx = vxres - ((sy + height) * vc->vc_font.height);
	75	region.dy = sx * vc->vc_font.width;
	76	region.height = width * vc->vc_font.width;
	77	region.width = height * vc->vc_font.height;
	78	region.rop = ROP_COPY;
	79
	80	info->fbops->fb_fillrect(info, &region);
	81	}
	82
	83	static inline void cw_putcs_aligned(struct vc_data vc, struct fb_info info,
	84	const u16 *s, u32 attr, u32 cnt,
	85	u32 d_pitch, u32 s_pitch, u32 cellsize,
	86	struct fb_image image, u8 buf, u8 *dst)
	87	{
	88	struct fbcon_ops *ops = info->fbcon_par;
	89	u16 charmask = vc->vc_hi_font_mask ? 0x1ff : 0xff;
	90	u32 idx = (vc->vc_font.height + 7) >> 3;
	91	u8 *src;
	92
	93	while (cnt--) {
	94	src = ops->fontbuffer + (scr_readw(s++) & charmask)*cellsize;
	95
	96	if (attr) {
	97	cw_update_attr(buf, src, attr, vc);
	98	src = buf;
	99	}
	100
	101	if (likely(idx == 1))
	102	__fb_pad_aligned_buffer(dst, d_pitch, src, idx,
	103	vc->vc_font.width);
	104	else
	105	fb_pad_aligned_buffer(dst, d_pitch, src, idx,
	106	vc->vc_font.width);
	107
	108	dst += d_pitch * vc->vc_font.width;
	109	}
	110
	111	info->fbops->fb_imageblit(info, image);
	112	}
	113
	114	static void cw_putcs(struct vc_data vc, struct fb_info info,
	115	const unsigned short *s, int count, int yy, int xx,
	116	int fg, int bg)
	117	{
	118	struct fb_image image;
dbcbfe1e AD	119	struct fbcon_ops *ops = info->fbcon_par;
	120	u32 width = (vc->vc_font.height + 7)/8;
	121	u32 cellsize = width * vc->vc_font.width;
	122	u32 maxcnt = info->pixmap.size/cellsize;
	123	u32 scan_align = info->pixmap.scan_align - 1;
	124	u32 buf_align = info->pixmap.buf_align - 1;
	125	u32 cnt, pitch, size;
	126	u32 attribute = get_attribute(info, scr_readw(s));
	127	u8 dst, buf = NULL;
ab767201	128	u32 vxres = GETVXRES(ops->p->scrollmode, info);
dbcbfe1e AD	129
	130	if (!ops->fontbuffer)
	131	return;
	132
	133	image.fg_color = fg;
	134	image.bg_color = bg;
	135	image.dx = vxres - ((yy + 1) * vc->vc_font.height);
	136	image.dy = xx * vc->vc_font.width;
	137	image.width = vc->vc_font.height;
	138	image.depth = 1;
	139
	140	if (attribute) {
	141	buf = kmalloc(cellsize, GFP_KERNEL);
	142	if (!buf)
	143	return;
	144	}
	145
	146	while (count) {
	147	if (count > maxcnt)
	148	cnt = maxcnt;
	149	else
	150	cnt = count;
	151
	152	image.height = vc->vc_font.width * cnt;
	153	pitch = ((image.width + 7) >> 3) + scan_align;
	154	pitch &= ~scan_align;
	155	size = pitch * image.height + buf_align;
	156	size &= ~buf_align;
	157	dst = fb_get_buffer_offset(info, &info->pixmap, size);
	158	image.data = dst;
	159	cw_putcs_aligned(vc, info, s, attribute, cnt, pitch,
	160	width, cellsize, &image, buf, dst);
	161	image.dy += image.height;
	162	count -= cnt;
	163	s += cnt;
	164	}
	165
	166	/* buf is always NULL except when in monochrome mode, so in this case
	167	it's a gain to check buf against NULL even though kfree() handles
	168	NULL pointers just fine */
	169	if (unlikely(buf))
	170	kfree(buf);
	171
	172	}
	173
	174	static void cw_clear_margins(struct vc_data vc, struct fb_info info,
	175	int bottom_only)
	176	{
	177	unsigned int cw = vc->vc_font.width;
	178	unsigned int ch = vc->vc_font.height;
	179	unsigned int rw = info->var.yres - (vc->vc_cols*cw);
	180	unsigned int bh = info->var.xres - (vc->vc_rows*ch);
	181	unsigned int rs = info->var.yres - rw;
	182	struct fb_fillrect region;
dbcbfe1e	183
f74a289b	184	region.color = 0;
dbcbfe1e AD	185	region.rop = ROP_COPY;
	186
	187	if (rw && !bottom_only) {
	188	region.dx = 0;
	189	region.dy = info->var.yoffset + rs;
	190	region.height = rw;
	191	region.width = info->var.xres_virtual;
	192	info->fbops->fb_fillrect(info, &region);
	193	}
	194
	195	if (bh) {
	196	region.dx = info->var.xoffset;
	197	region.dy = info->var.yoffset;
	198	region.height = info->var.yres;
	199	region.width = bh;
	200	info->fbops->fb_fillrect(info, &region);
	201	}
	202	}
	203
b73deed3 AD	204	static void cw_cursor(struct vc_data vc, struct fb_info info, int mode,
b73deed3 AD	205	int softback_lines, int fg, int bg)
dbcbfe1e AD	206	{
dbcbfe1e AD	207	struct fb_cursor cursor;
b73deed3	208	struct fbcon_ops *ops = info->fbcon_par;
dbcbfe1e AD	209	unsigned short charmask = vc->vc_hi_font_mask ? 0x1ff : 0xff;
dbcbfe1e AD	210	int w = (vc->vc_font.height + 7) >> 3, c;
b73deed3	211	int y = real_y(ops->p, vc->vc_y);
dbcbfe1e AD	212	int attribute, use_sw = (vc->vc_cursor_type & 0x10);
	213	int err = 1, dx, dy;
	214	char *src;
b73deed3	215	u32 vxres = GETVXRES(ops->p->scrollmode, info);
dbcbfe1e AD	216
	217	if (!ops->fontbuffer)
	218	return;
	219
	220	cursor.set = 0;
	221
	222	if (softback_lines) {
	223	if (y + softback_lines >= vc->vc_rows) {
	224	mode = CM_ERASE;
	225	ops->cursor_flash = 0;
	226	return;
	227	} else
	228	y += softback_lines;
	229	}
	230
	231	c = scr_readw((u16 *) vc->vc_pos);
	232	attribute = get_attribute(info, c);
	233	src = ops->fontbuffer + ((c & charmask) * (w * vc->vc_font.width));
	234
	235	if (ops->cursor_state.image.data != src \|\|
	236	ops->cursor_reset) {
	237	ops->cursor_state.image.data = src;
	238	cursor.set \|= FB_CUR_SETIMAGE;
	239	}
	240
	241	if (attribute) {
	242	u8 *dst;
	243
	244	dst = kmalloc(w * vc->vc_font.width, GFP_ATOMIC);
	245	if (!dst)
	246	return;
	247	kfree(ops->cursor_data);
	248	ops->cursor_data = dst;
	249	cw_update_attr(dst, src, attribute, vc);
	250	src = dst;
	251	}
	252
	253	if (ops->cursor_state.image.fg_color != fg \|\|
	254	ops->cursor_state.image.bg_color != bg \|\|
	255	ops->cursor_reset) {
	256	ops->cursor_state.image.fg_color = fg;
	257	ops->cursor_state.image.bg_color = bg;
	258	cursor.set \|= FB_CUR_SETCMAP;
	259	}
	260
	261	if (ops->cursor_state.image.height != vc->vc_font.width \|\|
	262	ops->cursor_state.image.width != vc->vc_font.height \|\|
	263	ops->cursor_reset) {
	264	ops->cursor_state.image.height = vc->vc_font.width;
	265	ops->cursor_state.image.width = vc->vc_font.height;
	266	cursor.set \|= FB_CUR_SETSIZE;
	267	}
	268
	269	dx = vxres - ((y * vc->vc_font.height) + vc->vc_font.height);
	270	dy = vc->vc_x * vc->vc_font.width;
	271
	272	if (ops->cursor_state.image.dx != dx \|\|
	273	ops->cursor_state.image.dy != dy \|\|
	274	ops->cursor_reset) {
	275	ops->cursor_state.image.dx = dx;
	276	ops->cursor_state.image.dy = dy;
	277	cursor.set \|= FB_CUR_SETPOS;
	278	}
	279
280	if (ops->cursor_state.hot.x \|\| ops->cursor_state.hot.y \|\|
281	ops->cursor_reset) {
282	ops->cursor_state.hot.x = cursor.hot.y = 0;
283	cursor.set \|= FB_CUR_SETHOT;
284	}
285
286	if (cursor.set & FB_CUR_SETSIZE \|\|
b73deed3	287	vc->vc_cursor_type != ops->p->cursor_shape \|\|
dbcbfe1e AD	288	ops->cursor_state.mask == NULL \|\|
	289	ops->cursor_reset) {
	290	char tmp, mask = kmalloc(w*vc->vc_font.width, GFP_ATOMIC);
	291	int cur_height, size, i = 0;
	292	int width = (vc->vc_font.width + 7)/8;
	293
	294	if (!mask)
	295	return;
	296
	297	tmp = kmalloc(width * vc->vc_font.height, GFP_ATOMIC);
	298
	299	if (!tmp) {
	300	kfree(mask);
	301	return;
	302	}
	303
	304	kfree(ops->cursor_state.mask);
	305	ops->cursor_state.mask = mask;
	306
b73deed3	307	ops->p->cursor_shape = vc->vc_cursor_type;
dbcbfe1e AD	308	cursor.set \|= FB_CUR_SETSHAPE;
dbcbfe1e AD	309
b73deed3	310	switch (ops->p->cursor_shape & CUR_HWMASK) {
dbcbfe1e AD	311	case CUR_NONE:
	312	cur_height = 0;
	313	break;
	314	case CUR_UNDERLINE:
	315	cur_height = (vc->vc_font.height < 10) ? 1 : 2;
	316	break;
	317	case CUR_LOWER_THIRD:
	318	cur_height = vc->vc_font.height/3;
	319	break;
	320	case CUR_LOWER_HALF:
	321	cur_height = vc->vc_font.height >> 1;
	322	break;
	323	case CUR_TWO_THIRDS:
	324	cur_height = (vc->vc_font.height << 1)/3;
	325	break;
	326	case CUR_BLOCK:
	327	default:
	328	cur_height = vc->vc_font.height;
	329	break;
	330	}
	331
	332	size = (vc->vc_font.height - cur_height) * width;
	333	while (size--)
	334	tmp[i++] = 0;
	335	size = cur_height * width;
	336	while (size--)
	337	tmp[i++] = 0xff;
	338	memset(mask, 0, w * vc->vc_font.width);
	339	rotate_cw(tmp, mask, vc->vc_font.width, vc->vc_font.height);
	340	kfree(tmp);
	341	}
	342
	343	switch (mode) {
	344	case CM_ERASE:
	345	ops->cursor_state.enable = 0;
	346	break;
	347	case CM_DRAW:
	348	case CM_MOVE:
	349	default:
	350	ops->cursor_state.enable = (use_sw) ? 0 : 1;
	351	break;
	352	}
	353
	354	cursor.image.data = src;
	355	cursor.image.fg_color = ops->cursor_state.image.fg_color;
	356	cursor.image.bg_color = ops->cursor_state.image.bg_color;
	357	cursor.image.dx = ops->cursor_state.image.dx;
	358	cursor.image.dy = ops->cursor_state.image.dy;
	359	cursor.image.height = ops->cursor_state.image.height;
	360	cursor.image.width = ops->cursor_state.image.width;
	361	cursor.hot.x = ops->cursor_state.hot.x;
	362	cursor.hot.y = ops->cursor_state.hot.y;
	363	cursor.mask = ops->cursor_state.mask;
	364	cursor.enable = ops->cursor_state.enable;
	365	cursor.image.depth = 1;
	366	cursor.rop = ROP_XOR;
	367
	368	if (info->fbops->fb_cursor)
	369	err = info->fbops->fb_cursor(info, &cursor);
	370
	371	if (err)
	372	soft_cursor(info, &cursor);
	373
	374	ops->cursor_reset = 0;
375	}
376
48afdf6e	377	static int cw_update_start(struct fb_info *info)
dbcbfe1e AD	378	{
dbcbfe1e AD	379	struct fbcon_ops *ops = info->fbcon_par;
ab767201	380	u32 vxres = GETVXRES(ops->p->scrollmode, info);
dbcbfe1e AD	381	u32 xoffset;
	382	int err;
	383
	384	xoffset = vxres - (info->var.xres + ops->var.yoffset);
	385	ops->var.yoffset = ops->var.xoffset;
	386	ops->var.xoffset = xoffset;
	387	err = fb_pan_display(info, &ops->var);
	388	ops->var.xoffset = info->var.xoffset;
	389	ops->var.yoffset = info->var.yoffset;
	390	ops->var.vmode = info->var.vmode;
	391	return err;
	392	}
	393
	394	void fbcon_rotate_cw(struct fbcon_ops *ops)
	395	{
	396	ops->bmove = cw_bmove;
	397	ops->clear = cw_clear;
	398	ops->putcs = cw_putcs;
	399	ops->clear_margins = cw_clear_margins;
	400	ops->cursor = cw_cursor;
	401	ops->update_start = cw_update_start;
	402	}
	403	EXPORT_SYMBOL(fbcon_rotate_cw);
	404
	405	MODULE_AUTHOR("Antonino Daplas <adaplas@pol.net>");
	406	MODULE_DESCRIPTION("Console Rotation (90 degrees) Support");
	407	MODULE_LICENSE("GPL");