[GitHub/mt8127/android_kernel_alcatel_ttab.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 inline 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, t = 0, 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;
			t = 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;
	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 + 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
	25	static inline void cw_update_attr(u8 dst, u8 src, int attribute,
	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;
	30	u8 c, t = 0, msk = ~(0xff >> offset);
	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;
	43	t = c;
	44	}
	45	}
	46	}
	47
	48
	49	static void cw_bmove(struct vc_data vc, struct fb_info info, int sy,
	50	int sx, int dy, int dx, int height, int width)
	51	{
ab767201	52	struct fbcon_ops *ops = info->fbcon_par;
dbcbfe1e	53	struct fb_copyarea area;
ab767201	54	u32 vxres = GETVXRES(ops->p->scrollmode, info);
dbcbfe1e AD	55
	56	area.sx = vxres - ((sy + height) * vc->vc_font.height);
	57	area.sy = sx * vc->vc_font.width;
	58	area.dx = vxres - ((dy + height) * vc->vc_font.height);
	59	area.dy = dx * vc->vc_font.width;
	60	area.width = height * vc->vc_font.height;
	61	area.height = width * vc->vc_font.width;
	62
	63	info->fbops->fb_copyarea(info, &area);
	64	}
	65
	66	static void cw_clear(struct vc_data vc, struct fb_info info, int sy,
	67	int sx, int height, int width)
	68	{
ab767201	69	struct fbcon_ops *ops = info->fbcon_par;
dbcbfe1e AD	70	struct fb_fillrect region;
dbcbfe1e AD	71	int bgshift = (vc->vc_hi_font_mask) ? 13 : 12;
ab767201	72	u32 vxres = GETVXRES(ops->p->scrollmode, info);
dbcbfe1e	73
91c43132	74	region.color = attr_bgcol_ec(bgshift,vc,info);
dbcbfe1e AD	75	region.dx = vxres - ((sy + height) * vc->vc_font.height);
	76	region.dy = sx * vc->vc_font.width;
	77	region.height = width * vc->vc_font.width;
	78	region.width = height * vc->vc_font.height;
	79	region.rop = ROP_COPY;
	80
	81	info->fbops->fb_fillrect(info, &region);
	82	}
	83
	84	static inline void cw_putcs_aligned(struct vc_data vc, struct fb_info info,
	85	const u16 *s, u32 attr, u32 cnt,
	86	u32 d_pitch, u32 s_pitch, u32 cellsize,
	87	struct fb_image image, u8 buf, u8 *dst)
	88	{
	89	struct fbcon_ops *ops = info->fbcon_par;
	90	u16 charmask = vc->vc_hi_font_mask ? 0x1ff : 0xff;
	91	u32 idx = (vc->vc_font.height + 7) >> 3;
	92	u8 *src;
	93
	94	while (cnt--) {
	95	src = ops->fontbuffer + (scr_readw(s++) & charmask)*cellsize;
	96
	97	if (attr) {
	98	cw_update_attr(buf, src, attr, vc);
	99	src = buf;
	100	}
	101
	102	if (likely(idx == 1))
	103	__fb_pad_aligned_buffer(dst, d_pitch, src, idx,
	104	vc->vc_font.width);
	105	else
	106	fb_pad_aligned_buffer(dst, d_pitch, src, idx,
	107	vc->vc_font.width);
	108
	109	dst += d_pitch * vc->vc_font.width;
	110	}
	111
	112	info->fbops->fb_imageblit(info, image);
	113	}
	114
	115	static void cw_putcs(struct vc_data vc, struct fb_info info,
	116	const unsigned short *s, int count, int yy, int xx,
	117	int fg, int bg)
	118	{
	119	struct fb_image image;
dbcbfe1e AD	120	struct fbcon_ops *ops = info->fbcon_par;
	121	u32 width = (vc->vc_font.height + 7)/8;
	122	u32 cellsize = width * vc->vc_font.width;
	123	u32 maxcnt = info->pixmap.size/cellsize;
	124	u32 scan_align = info->pixmap.scan_align - 1;
	125	u32 buf_align = info->pixmap.buf_align - 1;
	126	u32 cnt, pitch, size;
	127	u32 attribute = get_attribute(info, scr_readw(s));
	128	u8 dst, buf = NULL;
ab767201	129	u32 vxres = GETVXRES(ops->p->scrollmode, info);
dbcbfe1e AD	130
	131	if (!ops->fontbuffer)
	132	return;
	133
	134	image.fg_color = fg;
	135	image.bg_color = bg;
	136	image.dx = vxres - ((yy + 1) * vc->vc_font.height);
	137	image.dy = xx * vc->vc_font.width;
	138	image.width = vc->vc_font.height;
	139	image.depth = 1;
	140
	141	if (attribute) {
	142	buf = kmalloc(cellsize, GFP_KERNEL);
	143	if (!buf)
	144	return;
	145	}
	146
	147	while (count) {
	148	if (count > maxcnt)
	149	cnt = maxcnt;
	150	else
	151	cnt = count;
	152
	153	image.height = vc->vc_font.width * cnt;
	154	pitch = ((image.width + 7) >> 3) + scan_align;
	155	pitch &= ~scan_align;
	156	size = pitch * image.height + buf_align;
	157	size &= ~buf_align;
	158	dst = fb_get_buffer_offset(info, &info->pixmap, size);
	159	image.data = dst;
	160	cw_putcs_aligned(vc, info, s, attribute, cnt, pitch,
	161	width, cellsize, &image, buf, dst);
	162	image.dy += image.height;
	163	count -= cnt;
	164	s += cnt;
	165	}
	166
	167	/* buf is always NULL except when in monochrome mode, so in this case
	168	it's a gain to check buf against NULL even though kfree() handles
	169	NULL pointers just fine */
	170	if (unlikely(buf))
	171	kfree(buf);
	172
	173	}
	174
	175	static void cw_clear_margins(struct vc_data vc, struct fb_info info,
	176	int bottom_only)
	177	{
	178	unsigned int cw = vc->vc_font.width;
	179	unsigned int ch = vc->vc_font.height;
	180	unsigned int rw = info->var.yres - (vc->vc_cols*cw);
	181	unsigned int bh = info->var.xres - (vc->vc_rows*ch);
	182	unsigned int rs = info->var.yres - rw;
	183	struct fb_fillrect region;
	184	int bgshift = (vc->vc_hi_font_mask) ? 13 : 12;
	185
91c43132	186	region.color = attr_bgcol_ec(bgshift,vc,info);
dbcbfe1e AD	187	region.rop = ROP_COPY;
	188
	189	if (rw && !bottom_only) {
	190	region.dx = 0;
	191	region.dy = info->var.yoffset + rs;
	192	region.height = rw;
	193	region.width = info->var.xres_virtual;
	194	info->fbops->fb_fillrect(info, &region);
	195	}
	196
	197	if (bh) {
	198	region.dx = info->var.xoffset;
	199	region.dy = info->var.yoffset;
	200	region.height = info->var.yres;
	201	region.width = bh;
	202	info->fbops->fb_fillrect(info, &region);
	203	}
	204	}
	205
b73deed3 AD	206	static void cw_cursor(struct vc_data vc, struct fb_info info, int mode,
b73deed3 AD	207	int softback_lines, int fg, int bg)
dbcbfe1e AD	208	{
dbcbfe1e AD	209	struct fb_cursor cursor;
b73deed3	210	struct fbcon_ops *ops = info->fbcon_par;
dbcbfe1e AD	211	unsigned short charmask = vc->vc_hi_font_mask ? 0x1ff : 0xff;
dbcbfe1e AD	212	int w = (vc->vc_font.height + 7) >> 3, c;
b73deed3	213	int y = real_y(ops->p, vc->vc_y);
dbcbfe1e AD	214	int attribute, use_sw = (vc->vc_cursor_type & 0x10);
	215	int err = 1, dx, dy;
	216	char *src;
b73deed3	217	u32 vxres = GETVXRES(ops->p->scrollmode, info);
dbcbfe1e AD	218
	219	if (!ops->fontbuffer)
	220	return;
	221
	222	cursor.set = 0;
	223
	224	if (softback_lines) {
	225	if (y + softback_lines >= vc->vc_rows) {
	226	mode = CM_ERASE;
	227	ops->cursor_flash = 0;
	228	return;
	229	} else
	230	y += softback_lines;
	231	}
	232
	233	c = scr_readw((u16 *) vc->vc_pos);
	234	attribute = get_attribute(info, c);
	235	src = ops->fontbuffer + ((c & charmask) * (w * vc->vc_font.width));
	236
	237	if (ops->cursor_state.image.data != src \|\|
	238	ops->cursor_reset) {
	239	ops->cursor_state.image.data = src;
	240	cursor.set \|= FB_CUR_SETIMAGE;
	241	}
	242
	243	if (attribute) {
	244	u8 *dst;
	245
	246	dst = kmalloc(w * vc->vc_font.width, GFP_ATOMIC);
	247	if (!dst)
	248	return;
	249	kfree(ops->cursor_data);
	250	ops->cursor_data = dst;
	251	cw_update_attr(dst, src, attribute, vc);
	252	src = dst;
	253	}
	254
	255	if (ops->cursor_state.image.fg_color != fg \|\|
	256	ops->cursor_state.image.bg_color != bg \|\|
	257	ops->cursor_reset) {
	258	ops->cursor_state.image.fg_color = fg;
	259	ops->cursor_state.image.bg_color = bg;
	260	cursor.set \|= FB_CUR_SETCMAP;
	261	}
	262
	263	if (ops->cursor_state.image.height != vc->vc_font.width \|\|
	264	ops->cursor_state.image.width != vc->vc_font.height \|\|
	265	ops->cursor_reset) {
	266	ops->cursor_state.image.height = vc->vc_font.width;
	267	ops->cursor_state.image.width = vc->vc_font.height;
	268	cursor.set \|= FB_CUR_SETSIZE;
	269	}
	270
	271	dx = vxres - ((y * vc->vc_font.height) + vc->vc_font.height);
	272	dy = vc->vc_x * vc->vc_font.width;
	273
	274	if (ops->cursor_state.image.dx != dx \|\|
	275	ops->cursor_state.image.dy != dy \|\|
	276	ops->cursor_reset) {
	277	ops->cursor_state.image.dx = dx;
	278	ops->cursor_state.image.dy = dy;
	279	cursor.set \|= FB_CUR_SETPOS;
	280	}
	281
282	if (ops->cursor_state.hot.x \|\| ops->cursor_state.hot.y \|\|
283	ops->cursor_reset) {
284	ops->cursor_state.hot.x = cursor.hot.y = 0;
285	cursor.set \|= FB_CUR_SETHOT;
286	}
287
288	if (cursor.set & FB_CUR_SETSIZE \|\|
b73deed3	289	vc->vc_cursor_type != ops->p->cursor_shape \|\|
dbcbfe1e AD	290	ops->cursor_state.mask == NULL \|\|
	291	ops->cursor_reset) {
	292	char tmp, mask = kmalloc(w*vc->vc_font.width, GFP_ATOMIC);
	293	int cur_height, size, i = 0;
	294	int width = (vc->vc_font.width + 7)/8;
	295
	296	if (!mask)
	297	return;
	298
	299	tmp = kmalloc(width * vc->vc_font.height, GFP_ATOMIC);
	300
	301	if (!tmp) {
	302	kfree(mask);
	303	return;
	304	}
	305
	306	kfree(ops->cursor_state.mask);
	307	ops->cursor_state.mask = mask;
	308
b73deed3	309	ops->p->cursor_shape = vc->vc_cursor_type;
dbcbfe1e AD	310	cursor.set \|= FB_CUR_SETSHAPE;
dbcbfe1e AD	311
b73deed3	312	switch (ops->p->cursor_shape & CUR_HWMASK) {
dbcbfe1e AD	313	case CUR_NONE:
	314	cur_height = 0;
	315	break;
	316	case CUR_UNDERLINE:
	317	cur_height = (vc->vc_font.height < 10) ? 1 : 2;
	318	break;
	319	case CUR_LOWER_THIRD:
	320	cur_height = vc->vc_font.height/3;
	321	break;
	322	case CUR_LOWER_HALF:
	323	cur_height = vc->vc_font.height >> 1;
	324	break;
	325	case CUR_TWO_THIRDS:
	326	cur_height = (vc->vc_font.height << 1)/3;
	327	break;
	328	case CUR_BLOCK:
	329	default:
	330	cur_height = vc->vc_font.height;
	331	break;
	332	}
	333
	334	size = (vc->vc_font.height - cur_height) * width;
	335	while (size--)
	336	tmp[i++] = 0;
	337	size = cur_height * width;
	338	while (size--)
	339	tmp[i++] = 0xff;
	340	memset(mask, 0, w * vc->vc_font.width);
	341	rotate_cw(tmp, mask, vc->vc_font.width, vc->vc_font.height);
	342	kfree(tmp);
	343	}
	344
	345	switch (mode) {
	346	case CM_ERASE:
	347	ops->cursor_state.enable = 0;
	348	break;
	349	case CM_DRAW:
	350	case CM_MOVE:
	351	default:
	352	ops->cursor_state.enable = (use_sw) ? 0 : 1;
	353	break;
	354	}
	355
	356	cursor.image.data = src;
	357	cursor.image.fg_color = ops->cursor_state.image.fg_color;
	358	cursor.image.bg_color = ops->cursor_state.image.bg_color;
	359	cursor.image.dx = ops->cursor_state.image.dx;
	360	cursor.image.dy = ops->cursor_state.image.dy;
	361	cursor.image.height = ops->cursor_state.image.height;
	362	cursor.image.width = ops->cursor_state.image.width;
	363	cursor.hot.x = ops->cursor_state.hot.x;
	364	cursor.hot.y = ops->cursor_state.hot.y;
	365	cursor.mask = ops->cursor_state.mask;
	366	cursor.enable = ops->cursor_state.enable;
	367	cursor.image.depth = 1;
	368	cursor.rop = ROP_XOR;
	369
	370	if (info->fbops->fb_cursor)
	371	err = info->fbops->fb_cursor(info, &cursor);
	372
	373	if (err)
	374	soft_cursor(info, &cursor);
	375
	376	ops->cursor_reset = 0;
377	}
378
48afdf6e	379	static int cw_update_start(struct fb_info *info)
dbcbfe1e AD	380	{
dbcbfe1e AD	381	struct fbcon_ops *ops = info->fbcon_par;
ab767201	382	u32 vxres = GETVXRES(ops->p->scrollmode, info);
dbcbfe1e AD	383	u32 xoffset;
	384	int err;
	385
	386	xoffset = vxres - (info->var.xres + ops->var.yoffset);
	387	ops->var.yoffset = ops->var.xoffset;
	388	ops->var.xoffset = xoffset;
	389	err = fb_pan_display(info, &ops->var);
	390	ops->var.xoffset = info->var.xoffset;
	391	ops->var.yoffset = info->var.yoffset;
	392	ops->var.vmode = info->var.vmode;
	393	return err;
	394	}
	395
	396	void fbcon_rotate_cw(struct fbcon_ops *ops)
	397	{
	398	ops->bmove = cw_bmove;
	399	ops->clear = cw_clear;
	400	ops->putcs = cw_putcs;
	401	ops->clear_margins = cw_clear_margins;
	402	ops->cursor = cw_cursor;
	403	ops->update_start = cw_update_start;
	404	}
	405	EXPORT_SYMBOL(fbcon_rotate_cw);
	406
	407	MODULE_AUTHOR("Antonino Daplas <adaplas@pol.net>");
	408	MODULE_DESCRIPTION("Console Rotation (90 degrees) Support");
	409	MODULE_LICENSE("GPL");