16104c370SDaniel Vetter /*
26104c370SDaniel Vetter * linux/drivers/video/console/fbcon_ud.c -- Software Rotation - 90 degrees
36104c370SDaniel Vetter *
46104c370SDaniel Vetter * Copyright (C) 2005 Antonino Daplas <adaplas @pol.net>
56104c370SDaniel Vetter *
66104c370SDaniel Vetter * This file is subject to the terms and conditions of the GNU General Public
76104c370SDaniel Vetter * License. See the file COPYING in the main directory of this archive for
86104c370SDaniel Vetter * more details.
96104c370SDaniel Vetter */
106104c370SDaniel Vetter
116104c370SDaniel Vetter #include <linux/module.h>
126104c370SDaniel Vetter #include <linux/slab.h>
136104c370SDaniel Vetter #include <linux/string.h>
146104c370SDaniel Vetter #include <linux/fb.h>
156104c370SDaniel Vetter #include <linux/vt_kern.h>
166104c370SDaniel Vetter #include <linux/console.h>
176104c370SDaniel Vetter #include <asm/types.h>
186104c370SDaniel Vetter #include "fbcon.h"
196104c370SDaniel Vetter #include "fbcon_rotate.h"
206104c370SDaniel Vetter
216104c370SDaniel Vetter /*
226104c370SDaniel Vetter * Rotation 90 degrees
236104c370SDaniel Vetter */
246104c370SDaniel Vetter
cw_update_attr(u8 * dst,u8 * src,int attribute,struct vc_data * vc)256104c370SDaniel Vetter static void cw_update_attr(u8 *dst, u8 *src, int attribute,
266104c370SDaniel Vetter struct vc_data *vc)
276104c370SDaniel Vetter {
286104c370SDaniel Vetter int i, j, offset = (vc->vc_font.height < 10) ? 1 : 2;
296104c370SDaniel Vetter int width = (vc->vc_font.height + 7) >> 3;
306104c370SDaniel Vetter u8 c, msk = ~(0xff >> offset);
316104c370SDaniel Vetter
326104c370SDaniel Vetter for (i = 0; i < vc->vc_font.width; i++) {
336104c370SDaniel Vetter for (j = 0; j < width; j++) {
346104c370SDaniel Vetter c = *src;
356104c370SDaniel Vetter if (attribute & FBCON_ATTRIBUTE_UNDERLINE && !j)
366104c370SDaniel Vetter c |= msk;
376104c370SDaniel Vetter if (attribute & FBCON_ATTRIBUTE_BOLD && i)
386104c370SDaniel Vetter c |= *(src-width);
396104c370SDaniel Vetter if (attribute & FBCON_ATTRIBUTE_REVERSE)
406104c370SDaniel Vetter c = ~c;
416104c370SDaniel Vetter src++;
426104c370SDaniel Vetter *dst++ = c;
436104c370SDaniel Vetter }
446104c370SDaniel Vetter }
456104c370SDaniel Vetter }
466104c370SDaniel Vetter
476104c370SDaniel Vetter
cw_bmove(struct vc_data * vc,struct fb_info * info,int sy,int sx,int dy,int dx,int height,int width)486104c370SDaniel Vetter static void cw_bmove(struct vc_data *vc, struct fb_info *info, int sy,
496104c370SDaniel Vetter int sx, int dy, int dx, int height, int width)
506104c370SDaniel Vetter {
516104c370SDaniel Vetter struct fbcon_ops *ops = info->fbcon_par;
526104c370SDaniel Vetter struct fb_copyarea area;
53*778283dcSHelge Deller u32 vxres = GETVXRES(ops->p, info);
546104c370SDaniel Vetter
556104c370SDaniel Vetter area.sx = vxres - ((sy + height) * vc->vc_font.height);
566104c370SDaniel Vetter area.sy = sx * vc->vc_font.width;
576104c370SDaniel Vetter area.dx = vxres - ((dy + height) * vc->vc_font.height);
586104c370SDaniel Vetter area.dy = dx * vc->vc_font.width;
596104c370SDaniel Vetter area.width = height * vc->vc_font.height;
606104c370SDaniel Vetter area.height = width * vc->vc_font.width;
616104c370SDaniel Vetter
626104c370SDaniel Vetter info->fbops->fb_copyarea(info, &area);
636104c370SDaniel Vetter }
646104c370SDaniel Vetter
cw_clear(struct vc_data * vc,struct fb_info * info,int sy,int sx,int height,int width)656104c370SDaniel Vetter static void cw_clear(struct vc_data *vc, struct fb_info *info, int sy,
666104c370SDaniel Vetter int sx, int height, int width)
676104c370SDaniel Vetter {
686104c370SDaniel Vetter struct fbcon_ops *ops = info->fbcon_par;
696104c370SDaniel Vetter struct fb_fillrect region;
706104c370SDaniel Vetter int bgshift = (vc->vc_hi_font_mask) ? 13 : 12;
71*778283dcSHelge Deller u32 vxres = GETVXRES(ops->p, info);
726104c370SDaniel Vetter
736104c370SDaniel Vetter region.color = attr_bgcol_ec(bgshift,vc,info);
746104c370SDaniel Vetter region.dx = vxres - ((sy + height) * vc->vc_font.height);
756104c370SDaniel Vetter region.dy = sx * vc->vc_font.width;
766104c370SDaniel Vetter region.height = width * vc->vc_font.width;
776104c370SDaniel Vetter region.width = height * vc->vc_font.height;
786104c370SDaniel Vetter region.rop = ROP_COPY;
796104c370SDaniel Vetter
806104c370SDaniel Vetter info->fbops->fb_fillrect(info, ®ion);
816104c370SDaniel Vetter }
826104c370SDaniel Vetter
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)836104c370SDaniel Vetter static inline void cw_putcs_aligned(struct vc_data *vc, struct fb_info *info,
846104c370SDaniel Vetter const u16 *s, u32 attr, u32 cnt,
856104c370SDaniel Vetter u32 d_pitch, u32 s_pitch, u32 cellsize,
866104c370SDaniel Vetter struct fb_image *image, u8 *buf, u8 *dst)
876104c370SDaniel Vetter {
886104c370SDaniel Vetter struct fbcon_ops *ops = info->fbcon_par;
896104c370SDaniel Vetter u16 charmask = vc->vc_hi_font_mask ? 0x1ff : 0xff;
906104c370SDaniel Vetter u32 idx = (vc->vc_font.height + 7) >> 3;
916104c370SDaniel Vetter u8 *src;
926104c370SDaniel Vetter
936104c370SDaniel Vetter while (cnt--) {
946104c370SDaniel Vetter src = ops->fontbuffer + (scr_readw(s++) & charmask)*cellsize;
956104c370SDaniel Vetter
966104c370SDaniel Vetter if (attr) {
976104c370SDaniel Vetter cw_update_attr(buf, src, attr, vc);
986104c370SDaniel Vetter src = buf;
996104c370SDaniel Vetter }
1006104c370SDaniel Vetter
1016104c370SDaniel Vetter if (likely(idx == 1))
1026104c370SDaniel Vetter __fb_pad_aligned_buffer(dst, d_pitch, src, idx,
1036104c370SDaniel Vetter vc->vc_font.width);
1046104c370SDaniel Vetter else
1056104c370SDaniel Vetter fb_pad_aligned_buffer(dst, d_pitch, src, idx,
1066104c370SDaniel Vetter vc->vc_font.width);
1076104c370SDaniel Vetter
1086104c370SDaniel Vetter dst += d_pitch * vc->vc_font.width;
1096104c370SDaniel Vetter }
1106104c370SDaniel Vetter
1116104c370SDaniel Vetter info->fbops->fb_imageblit(info, image);
1126104c370SDaniel Vetter }
1136104c370SDaniel Vetter
cw_putcs(struct vc_data * vc,struct fb_info * info,const unsigned short * s,int count,int yy,int xx,int fg,int bg)1146104c370SDaniel Vetter static void cw_putcs(struct vc_data *vc, struct fb_info *info,
1156104c370SDaniel Vetter const unsigned short *s, int count, int yy, int xx,
1166104c370SDaniel Vetter int fg, int bg)
1176104c370SDaniel Vetter {
1186104c370SDaniel Vetter struct fb_image image;
1196104c370SDaniel Vetter struct fbcon_ops *ops = info->fbcon_par;
1206104c370SDaniel Vetter u32 width = (vc->vc_font.height + 7)/8;
1216104c370SDaniel Vetter u32 cellsize = width * vc->vc_font.width;
1226104c370SDaniel Vetter u32 maxcnt = info->pixmap.size/cellsize;
1236104c370SDaniel Vetter u32 scan_align = info->pixmap.scan_align - 1;
1246104c370SDaniel Vetter u32 buf_align = info->pixmap.buf_align - 1;
1256104c370SDaniel Vetter u32 cnt, pitch, size;
1266104c370SDaniel Vetter u32 attribute = get_attribute(info, scr_readw(s));
1276104c370SDaniel Vetter u8 *dst, *buf = NULL;
128*778283dcSHelge Deller u32 vxres = GETVXRES(ops->p, info);
1296104c370SDaniel Vetter
1306104c370SDaniel Vetter if (!ops->fontbuffer)
1316104c370SDaniel Vetter return;
1326104c370SDaniel Vetter
1336104c370SDaniel Vetter image.fg_color = fg;
1346104c370SDaniel Vetter image.bg_color = bg;
1356104c370SDaniel Vetter image.dx = vxres - ((yy + 1) * vc->vc_font.height);
1366104c370SDaniel Vetter image.dy = xx * vc->vc_font.width;
1376104c370SDaniel Vetter image.width = vc->vc_font.height;
1386104c370SDaniel Vetter image.depth = 1;
1396104c370SDaniel Vetter
1406104c370SDaniel Vetter if (attribute) {
1416104c370SDaniel Vetter buf = kmalloc(cellsize, GFP_KERNEL);
1426104c370SDaniel Vetter if (!buf)
1436104c370SDaniel Vetter return;
1446104c370SDaniel Vetter }
1456104c370SDaniel Vetter
1466104c370SDaniel Vetter while (count) {
1476104c370SDaniel Vetter if (count > maxcnt)
1486104c370SDaniel Vetter cnt = maxcnt;
1496104c370SDaniel Vetter else
1506104c370SDaniel Vetter cnt = count;
1516104c370SDaniel Vetter
1526104c370SDaniel Vetter image.height = vc->vc_font.width * cnt;
1536104c370SDaniel Vetter pitch = ((image.width + 7) >> 3) + scan_align;
1546104c370SDaniel Vetter pitch &= ~scan_align;
1556104c370SDaniel Vetter size = pitch * image.height + buf_align;
1566104c370SDaniel Vetter size &= ~buf_align;
1576104c370SDaniel Vetter dst = fb_get_buffer_offset(info, &info->pixmap, size);
1586104c370SDaniel Vetter image.data = dst;
1596104c370SDaniel Vetter cw_putcs_aligned(vc, info, s, attribute, cnt, pitch,
1606104c370SDaniel Vetter width, cellsize, &image, buf, dst);
1616104c370SDaniel Vetter image.dy += image.height;
1626104c370SDaniel Vetter count -= cnt;
1636104c370SDaniel Vetter s += cnt;
1646104c370SDaniel Vetter }
1656104c370SDaniel Vetter
1666104c370SDaniel Vetter /* buf is always NULL except when in monochrome mode, so in this case
1676104c370SDaniel Vetter it's a gain to check buf against NULL even though kfree() handles
1686104c370SDaniel Vetter NULL pointers just fine */
1696104c370SDaniel Vetter if (unlikely(buf))
1706104c370SDaniel Vetter kfree(buf);
1716104c370SDaniel Vetter
1726104c370SDaniel Vetter }
1736104c370SDaniel Vetter
cw_clear_margins(struct vc_data * vc,struct fb_info * info,int color,int bottom_only)1746104c370SDaniel Vetter static void cw_clear_margins(struct vc_data *vc, struct fb_info *info,
17574c1c8b3SDavid Lechner int color, int bottom_only)
1766104c370SDaniel Vetter {
1776104c370SDaniel Vetter unsigned int cw = vc->vc_font.width;
1786104c370SDaniel Vetter unsigned int ch = vc->vc_font.height;
1796104c370SDaniel Vetter unsigned int rw = info->var.yres - (vc->vc_cols*cw);
1806104c370SDaniel Vetter unsigned int bh = info->var.xres - (vc->vc_rows*ch);
1816104c370SDaniel Vetter unsigned int rs = info->var.yres - rw;
1826104c370SDaniel Vetter struct fb_fillrect region;
1836104c370SDaniel Vetter
18474c1c8b3SDavid Lechner region.color = color;
1856104c370SDaniel Vetter region.rop = ROP_COPY;
1866104c370SDaniel Vetter
187033724d6STetsuo Handa if ((int) rw > 0 && !bottom_only) {
1886104c370SDaniel Vetter region.dx = 0;
1896104c370SDaniel Vetter region.dy = info->var.yoffset + rs;
1906104c370SDaniel Vetter region.height = rw;
1916104c370SDaniel Vetter region.width = info->var.xres_virtual;
1926104c370SDaniel Vetter info->fbops->fb_fillrect(info, ®ion);
1936104c370SDaniel Vetter }
1946104c370SDaniel Vetter
195033724d6STetsuo Handa if ((int) bh > 0) {
1966104c370SDaniel Vetter region.dx = info->var.xoffset;
1976104c370SDaniel Vetter region.dy = info->var.yoffset;
1986104c370SDaniel Vetter region.height = info->var.yres;
1996104c370SDaniel Vetter region.width = bh;
2006104c370SDaniel Vetter info->fbops->fb_fillrect(info, ®ion);
2016104c370SDaniel Vetter }
2026104c370SDaniel Vetter }
2036104c370SDaniel Vetter
cw_cursor(struct vc_data * vc,struct fb_info * info,int mode,int fg,int bg)2046104c370SDaniel Vetter static void cw_cursor(struct vc_data *vc, struct fb_info *info, int mode,
20506a0df4dSLinus Torvalds int fg, int bg)
2066104c370SDaniel Vetter {
2076104c370SDaniel Vetter struct fb_cursor cursor;
2086104c370SDaniel Vetter struct fbcon_ops *ops = info->fbcon_par;
2096104c370SDaniel Vetter unsigned short charmask = vc->vc_hi_font_mask ? 0x1ff : 0xff;
2106104c370SDaniel Vetter int w = (vc->vc_font.height + 7) >> 3, c;
21128bc24fcSJiri Slaby int y = real_y(ops->p, vc->state.y);
212c0e4b3adSJiri Slaby int attribute, use_sw = vc->vc_cursor_type & CUR_SW;
2136104c370SDaniel Vetter int err = 1, dx, dy;
2146104c370SDaniel Vetter char *src;
215*778283dcSHelge Deller u32 vxres = GETVXRES(ops->p, info);
2166104c370SDaniel Vetter
2176104c370SDaniel Vetter if (!ops->fontbuffer)
2186104c370SDaniel Vetter return;
2196104c370SDaniel Vetter
2206104c370SDaniel Vetter cursor.set = 0;
2216104c370SDaniel Vetter
2226104c370SDaniel Vetter c = scr_readw((u16 *) vc->vc_pos);
2236104c370SDaniel Vetter attribute = get_attribute(info, c);
2246104c370SDaniel Vetter src = ops->fontbuffer + ((c & charmask) * (w * vc->vc_font.width));
2256104c370SDaniel Vetter
2266104c370SDaniel Vetter if (ops->cursor_state.image.data != src ||
2276104c370SDaniel Vetter ops->cursor_reset) {
2286104c370SDaniel Vetter ops->cursor_state.image.data = src;
2296104c370SDaniel Vetter cursor.set |= FB_CUR_SETIMAGE;
2306104c370SDaniel Vetter }
2316104c370SDaniel Vetter
2326104c370SDaniel Vetter if (attribute) {
2336104c370SDaniel Vetter u8 *dst;
2346104c370SDaniel Vetter
2356da2ec56SKees Cook dst = kmalloc_array(w, vc->vc_font.width, GFP_ATOMIC);
2366104c370SDaniel Vetter if (!dst)
2376104c370SDaniel Vetter return;
2386104c370SDaniel Vetter kfree(ops->cursor_data);
2396104c370SDaniel Vetter ops->cursor_data = dst;
2406104c370SDaniel Vetter cw_update_attr(dst, src, attribute, vc);
2416104c370SDaniel Vetter src = dst;
2426104c370SDaniel Vetter }
2436104c370SDaniel Vetter
2446104c370SDaniel Vetter if (ops->cursor_state.image.fg_color != fg ||
2456104c370SDaniel Vetter ops->cursor_state.image.bg_color != bg ||
2466104c370SDaniel Vetter ops->cursor_reset) {
2476104c370SDaniel Vetter ops->cursor_state.image.fg_color = fg;
2486104c370SDaniel Vetter ops->cursor_state.image.bg_color = bg;
2496104c370SDaniel Vetter cursor.set |= FB_CUR_SETCMAP;
2506104c370SDaniel Vetter }
2516104c370SDaniel Vetter
2526104c370SDaniel Vetter if (ops->cursor_state.image.height != vc->vc_font.width ||
2536104c370SDaniel Vetter ops->cursor_state.image.width != vc->vc_font.height ||
2546104c370SDaniel Vetter ops->cursor_reset) {
2556104c370SDaniel Vetter ops->cursor_state.image.height = vc->vc_font.width;
2566104c370SDaniel Vetter ops->cursor_state.image.width = vc->vc_font.height;
2576104c370SDaniel Vetter cursor.set |= FB_CUR_SETSIZE;
2586104c370SDaniel Vetter }
2596104c370SDaniel Vetter
2606104c370SDaniel Vetter dx = vxres - ((y * vc->vc_font.height) + vc->vc_font.height);
26128bc24fcSJiri Slaby dy = vc->state.x * vc->vc_font.width;
2626104c370SDaniel Vetter
2636104c370SDaniel Vetter if (ops->cursor_state.image.dx != dx ||
2646104c370SDaniel Vetter ops->cursor_state.image.dy != dy ||
2656104c370SDaniel Vetter ops->cursor_reset) {
2666104c370SDaniel Vetter ops->cursor_state.image.dx = dx;
2676104c370SDaniel Vetter ops->cursor_state.image.dy = dy;
2686104c370SDaniel Vetter cursor.set |= FB_CUR_SETPOS;
2696104c370SDaniel Vetter }
2706104c370SDaniel Vetter
2716104c370SDaniel Vetter if (ops->cursor_state.hot.x || ops->cursor_state.hot.y ||
2726104c370SDaniel Vetter ops->cursor_reset) {
2736104c370SDaniel Vetter ops->cursor_state.hot.x = cursor.hot.y = 0;
2746104c370SDaniel Vetter cursor.set |= FB_CUR_SETHOT;
2756104c370SDaniel Vetter }
2766104c370SDaniel Vetter
2776104c370SDaniel Vetter if (cursor.set & FB_CUR_SETSIZE ||
2786104c370SDaniel Vetter vc->vc_cursor_type != ops->p->cursor_shape ||
2796104c370SDaniel Vetter ops->cursor_state.mask == NULL ||
2806104c370SDaniel Vetter ops->cursor_reset) {
2816da2ec56SKees Cook char *tmp, *mask = kmalloc_array(w, vc->vc_font.width,
2826da2ec56SKees Cook GFP_ATOMIC);
2836104c370SDaniel Vetter int cur_height, size, i = 0;
2846104c370SDaniel Vetter int width = (vc->vc_font.width + 7)/8;
2856104c370SDaniel Vetter
2866104c370SDaniel Vetter if (!mask)
2876104c370SDaniel Vetter return;
2886104c370SDaniel Vetter
2896da2ec56SKees Cook tmp = kmalloc_array(width, vc->vc_font.height, GFP_ATOMIC);
2906104c370SDaniel Vetter
2916104c370SDaniel Vetter if (!tmp) {
2926104c370SDaniel Vetter kfree(mask);
2936104c370SDaniel Vetter return;
2946104c370SDaniel Vetter }
2956104c370SDaniel Vetter
2966104c370SDaniel Vetter kfree(ops->cursor_state.mask);
2976104c370SDaniel Vetter ops->cursor_state.mask = mask;
2986104c370SDaniel Vetter
2996104c370SDaniel Vetter ops->p->cursor_shape = vc->vc_cursor_type;
3006104c370SDaniel Vetter cursor.set |= FB_CUR_SETSHAPE;
3016104c370SDaniel Vetter
3024dfa3c54SJiri Slaby switch (CUR_SIZE(ops->p->cursor_shape)) {
3036104c370SDaniel Vetter case CUR_NONE:
3046104c370SDaniel Vetter cur_height = 0;
3056104c370SDaniel Vetter break;
3066104c370SDaniel Vetter case CUR_UNDERLINE:
3076104c370SDaniel Vetter cur_height = (vc->vc_font.height < 10) ? 1 : 2;
3086104c370SDaniel Vetter break;
3096104c370SDaniel Vetter case CUR_LOWER_THIRD:
3106104c370SDaniel Vetter cur_height = vc->vc_font.height/3;
3116104c370SDaniel Vetter break;
3126104c370SDaniel Vetter case CUR_LOWER_HALF:
3136104c370SDaniel Vetter cur_height = vc->vc_font.height >> 1;
3146104c370SDaniel Vetter break;
3156104c370SDaniel Vetter case CUR_TWO_THIRDS:
3166104c370SDaniel Vetter cur_height = (vc->vc_font.height << 1)/3;
3176104c370SDaniel Vetter break;
3186104c370SDaniel Vetter case CUR_BLOCK:
3196104c370SDaniel Vetter default:
3206104c370SDaniel Vetter cur_height = vc->vc_font.height;
3216104c370SDaniel Vetter break;
3226104c370SDaniel Vetter }
3236104c370SDaniel Vetter
3246104c370SDaniel Vetter size = (vc->vc_font.height - cur_height) * width;
3256104c370SDaniel Vetter while (size--)
3266104c370SDaniel Vetter tmp[i++] = 0;
3276104c370SDaniel Vetter size = cur_height * width;
3286104c370SDaniel Vetter while (size--)
3296104c370SDaniel Vetter tmp[i++] = 0xff;
3306104c370SDaniel Vetter memset(mask, 0, w * vc->vc_font.width);
3316104c370SDaniel Vetter rotate_cw(tmp, mask, vc->vc_font.width, vc->vc_font.height);
3326104c370SDaniel Vetter kfree(tmp);
3336104c370SDaniel Vetter }
3346104c370SDaniel Vetter
3356104c370SDaniel Vetter switch (mode) {
3366104c370SDaniel Vetter case CM_ERASE:
3376104c370SDaniel Vetter ops->cursor_state.enable = 0;
3386104c370SDaniel Vetter break;
3396104c370SDaniel Vetter case CM_DRAW:
3406104c370SDaniel Vetter case CM_MOVE:
3416104c370SDaniel Vetter default:
3426104c370SDaniel Vetter ops->cursor_state.enable = (use_sw) ? 0 : 1;
3436104c370SDaniel Vetter break;
3446104c370SDaniel Vetter }
3456104c370SDaniel Vetter
3466104c370SDaniel Vetter cursor.image.data = src;
3476104c370SDaniel Vetter cursor.image.fg_color = ops->cursor_state.image.fg_color;
3486104c370SDaniel Vetter cursor.image.bg_color = ops->cursor_state.image.bg_color;
3496104c370SDaniel Vetter cursor.image.dx = ops->cursor_state.image.dx;
3506104c370SDaniel Vetter cursor.image.dy = ops->cursor_state.image.dy;
3516104c370SDaniel Vetter cursor.image.height = ops->cursor_state.image.height;
3526104c370SDaniel Vetter cursor.image.width = ops->cursor_state.image.width;
3536104c370SDaniel Vetter cursor.hot.x = ops->cursor_state.hot.x;
3546104c370SDaniel Vetter cursor.hot.y = ops->cursor_state.hot.y;
3556104c370SDaniel Vetter cursor.mask = ops->cursor_state.mask;
3566104c370SDaniel Vetter cursor.enable = ops->cursor_state.enable;
3576104c370SDaniel Vetter cursor.image.depth = 1;
3586104c370SDaniel Vetter cursor.rop = ROP_XOR;
3596104c370SDaniel Vetter
3606104c370SDaniel Vetter if (info->fbops->fb_cursor)
3616104c370SDaniel Vetter err = info->fbops->fb_cursor(info, &cursor);
3626104c370SDaniel Vetter
3636104c370SDaniel Vetter if (err)
3646104c370SDaniel Vetter soft_cursor(info, &cursor);
3656104c370SDaniel Vetter
3666104c370SDaniel Vetter ops->cursor_reset = 0;
3676104c370SDaniel Vetter }
3686104c370SDaniel Vetter
cw_update_start(struct fb_info * info)3696104c370SDaniel Vetter static int cw_update_start(struct fb_info *info)
3706104c370SDaniel Vetter {
3716104c370SDaniel Vetter struct fbcon_ops *ops = info->fbcon_par;
372*778283dcSHelge Deller u32 vxres = GETVXRES(ops->p, info);
3736104c370SDaniel Vetter u32 xoffset;
3746104c370SDaniel Vetter int err;
3756104c370SDaniel Vetter
3766104c370SDaniel Vetter xoffset = vxres - (info->var.xres + ops->var.yoffset);
3776104c370SDaniel Vetter ops->var.yoffset = ops->var.xoffset;
3786104c370SDaniel Vetter ops->var.xoffset = xoffset;
3796104c370SDaniel Vetter err = fb_pan_display(info, &ops->var);
3806104c370SDaniel Vetter ops->var.xoffset = info->var.xoffset;
3816104c370SDaniel Vetter ops->var.yoffset = info->var.yoffset;
3826104c370SDaniel Vetter ops->var.vmode = info->var.vmode;
3836104c370SDaniel Vetter return err;
3846104c370SDaniel Vetter }
3856104c370SDaniel Vetter
fbcon_rotate_cw(struct fbcon_ops * ops)3866104c370SDaniel Vetter void fbcon_rotate_cw(struct fbcon_ops *ops)
3876104c370SDaniel Vetter {
3886104c370SDaniel Vetter ops->bmove = cw_bmove;
3896104c370SDaniel Vetter ops->clear = cw_clear;
3906104c370SDaniel Vetter ops->putcs = cw_putcs;
3916104c370SDaniel Vetter ops->clear_margins = cw_clear_margins;
3926104c370SDaniel Vetter ops->cursor = cw_cursor;
3936104c370SDaniel Vetter ops->update_start = cw_update_start;
3946104c370SDaniel Vetter }
395