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 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 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; 536104c370SDaniel Vetter u32 vxres = GETVXRES(ops->p->scrollmode, 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 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; 716104c370SDaniel Vetter u32 vxres = GETVXRES(ops->p->scrollmode, 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 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 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; 1286104c370SDaniel Vetter u32 vxres = GETVXRES(ops->p->scrollmode, 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 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 1876104c370SDaniel Vetter if (rw && !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 1956104c370SDaniel Vetter if (bh) { 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 2046104c370SDaniel Vetter static void cw_cursor(struct vc_data *vc, struct fb_info *info, int mode, 2056104c370SDaniel Vetter int softback_lines, 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; 2116104c370SDaniel Vetter int y = real_y(ops->p, vc->vc_y); 2126104c370SDaniel Vetter int attribute, use_sw = (vc->vc_cursor_type & 0x10); 2136104c370SDaniel Vetter int err = 1, dx, dy; 2146104c370SDaniel Vetter char *src; 2156104c370SDaniel Vetter u32 vxres = GETVXRES(ops->p->scrollmode, info); 2166104c370SDaniel Vetter 2176104c370SDaniel Vetter if (!ops->fontbuffer) 2186104c370SDaniel Vetter return; 2196104c370SDaniel Vetter 2206104c370SDaniel Vetter cursor.set = 0; 2216104c370SDaniel Vetter 2226104c370SDaniel Vetter if (softback_lines) { 2236104c370SDaniel Vetter if (y + softback_lines >= vc->vc_rows) { 2246104c370SDaniel Vetter mode = CM_ERASE; 2256104c370SDaniel Vetter ops->cursor_flash = 0; 2266104c370SDaniel Vetter return; 2276104c370SDaniel Vetter } else 2286104c370SDaniel Vetter y += softback_lines; 2296104c370SDaniel Vetter } 2306104c370SDaniel Vetter 2316104c370SDaniel Vetter c = scr_readw((u16 *) vc->vc_pos); 2326104c370SDaniel Vetter attribute = get_attribute(info, c); 2336104c370SDaniel Vetter src = ops->fontbuffer + ((c & charmask) * (w * vc->vc_font.width)); 2346104c370SDaniel Vetter 2356104c370SDaniel Vetter if (ops->cursor_state.image.data != src || 2366104c370SDaniel Vetter ops->cursor_reset) { 2376104c370SDaniel Vetter ops->cursor_state.image.data = src; 2386104c370SDaniel Vetter cursor.set |= FB_CUR_SETIMAGE; 2396104c370SDaniel Vetter } 2406104c370SDaniel Vetter 2416104c370SDaniel Vetter if (attribute) { 2426104c370SDaniel Vetter u8 *dst; 2436104c370SDaniel Vetter 2446da2ec56SKees Cook dst = kmalloc_array(w, vc->vc_font.width, GFP_ATOMIC); 2456104c370SDaniel Vetter if (!dst) 2466104c370SDaniel Vetter return; 2476104c370SDaniel Vetter kfree(ops->cursor_data); 2486104c370SDaniel Vetter ops->cursor_data = dst; 2496104c370SDaniel Vetter cw_update_attr(dst, src, attribute, vc); 2506104c370SDaniel Vetter src = dst; 2516104c370SDaniel Vetter } 2526104c370SDaniel Vetter 2536104c370SDaniel Vetter if (ops->cursor_state.image.fg_color != fg || 2546104c370SDaniel Vetter ops->cursor_state.image.bg_color != bg || 2556104c370SDaniel Vetter ops->cursor_reset) { 2566104c370SDaniel Vetter ops->cursor_state.image.fg_color = fg; 2576104c370SDaniel Vetter ops->cursor_state.image.bg_color = bg; 2586104c370SDaniel Vetter cursor.set |= FB_CUR_SETCMAP; 2596104c370SDaniel Vetter } 2606104c370SDaniel Vetter 2616104c370SDaniel Vetter if (ops->cursor_state.image.height != vc->vc_font.width || 2626104c370SDaniel Vetter ops->cursor_state.image.width != vc->vc_font.height || 2636104c370SDaniel Vetter ops->cursor_reset) { 2646104c370SDaniel Vetter ops->cursor_state.image.height = vc->vc_font.width; 2656104c370SDaniel Vetter ops->cursor_state.image.width = vc->vc_font.height; 2666104c370SDaniel Vetter cursor.set |= FB_CUR_SETSIZE; 2676104c370SDaniel Vetter } 2686104c370SDaniel Vetter 2696104c370SDaniel Vetter dx = vxres - ((y * vc->vc_font.height) + vc->vc_font.height); 2706104c370SDaniel Vetter dy = vc->vc_x * vc->vc_font.width; 2716104c370SDaniel Vetter 2726104c370SDaniel Vetter if (ops->cursor_state.image.dx != dx || 2736104c370SDaniel Vetter ops->cursor_state.image.dy != dy || 2746104c370SDaniel Vetter ops->cursor_reset) { 2756104c370SDaniel Vetter ops->cursor_state.image.dx = dx; 2766104c370SDaniel Vetter ops->cursor_state.image.dy = dy; 2776104c370SDaniel Vetter cursor.set |= FB_CUR_SETPOS; 2786104c370SDaniel Vetter } 2796104c370SDaniel Vetter 2806104c370SDaniel Vetter if (ops->cursor_state.hot.x || ops->cursor_state.hot.y || 2816104c370SDaniel Vetter ops->cursor_reset) { 2826104c370SDaniel Vetter ops->cursor_state.hot.x = cursor.hot.y = 0; 2836104c370SDaniel Vetter cursor.set |= FB_CUR_SETHOT; 2846104c370SDaniel Vetter } 2856104c370SDaniel Vetter 2866104c370SDaniel Vetter if (cursor.set & FB_CUR_SETSIZE || 2876104c370SDaniel Vetter vc->vc_cursor_type != ops->p->cursor_shape || 2886104c370SDaniel Vetter ops->cursor_state.mask == NULL || 2896104c370SDaniel Vetter ops->cursor_reset) { 2906da2ec56SKees Cook char *tmp, *mask = kmalloc_array(w, vc->vc_font.width, 2916da2ec56SKees Cook GFP_ATOMIC); 2926104c370SDaniel Vetter int cur_height, size, i = 0; 2936104c370SDaniel Vetter int width = (vc->vc_font.width + 7)/8; 2946104c370SDaniel Vetter 2956104c370SDaniel Vetter if (!mask) 2966104c370SDaniel Vetter return; 2976104c370SDaniel Vetter 2986da2ec56SKees Cook tmp = kmalloc_array(width, vc->vc_font.height, GFP_ATOMIC); 2996104c370SDaniel Vetter 3006104c370SDaniel Vetter if (!tmp) { 3016104c370SDaniel Vetter kfree(mask); 3026104c370SDaniel Vetter return; 3036104c370SDaniel Vetter } 3046104c370SDaniel Vetter 3056104c370SDaniel Vetter kfree(ops->cursor_state.mask); 3066104c370SDaniel Vetter ops->cursor_state.mask = mask; 3076104c370SDaniel Vetter 3086104c370SDaniel Vetter ops->p->cursor_shape = vc->vc_cursor_type; 3096104c370SDaniel Vetter cursor.set |= FB_CUR_SETSHAPE; 3106104c370SDaniel Vetter 3116104c370SDaniel Vetter switch (ops->p->cursor_shape & CUR_HWMASK) { 3126104c370SDaniel Vetter case CUR_NONE: 3136104c370SDaniel Vetter cur_height = 0; 3146104c370SDaniel Vetter break; 3156104c370SDaniel Vetter case CUR_UNDERLINE: 3166104c370SDaniel Vetter cur_height = (vc->vc_font.height < 10) ? 1 : 2; 3176104c370SDaniel Vetter break; 3186104c370SDaniel Vetter case CUR_LOWER_THIRD: 3196104c370SDaniel Vetter cur_height = vc->vc_font.height/3; 3206104c370SDaniel Vetter break; 3216104c370SDaniel Vetter case CUR_LOWER_HALF: 3226104c370SDaniel Vetter cur_height = vc->vc_font.height >> 1; 3236104c370SDaniel Vetter break; 3246104c370SDaniel Vetter case CUR_TWO_THIRDS: 3256104c370SDaniel Vetter cur_height = (vc->vc_font.height << 1)/3; 3266104c370SDaniel Vetter break; 3276104c370SDaniel Vetter case CUR_BLOCK: 3286104c370SDaniel Vetter default: 3296104c370SDaniel Vetter cur_height = vc->vc_font.height; 3306104c370SDaniel Vetter break; 3316104c370SDaniel Vetter } 3326104c370SDaniel Vetter 3336104c370SDaniel Vetter size = (vc->vc_font.height - cur_height) * width; 3346104c370SDaniel Vetter while (size--) 3356104c370SDaniel Vetter tmp[i++] = 0; 3366104c370SDaniel Vetter size = cur_height * width; 3376104c370SDaniel Vetter while (size--) 3386104c370SDaniel Vetter tmp[i++] = 0xff; 3396104c370SDaniel Vetter memset(mask, 0, w * vc->vc_font.width); 3406104c370SDaniel Vetter rotate_cw(tmp, mask, vc->vc_font.width, vc->vc_font.height); 3416104c370SDaniel Vetter kfree(tmp); 3426104c370SDaniel Vetter } 3436104c370SDaniel Vetter 3446104c370SDaniel Vetter switch (mode) { 3456104c370SDaniel Vetter case CM_ERASE: 3466104c370SDaniel Vetter ops->cursor_state.enable = 0; 3476104c370SDaniel Vetter break; 3486104c370SDaniel Vetter case CM_DRAW: 3496104c370SDaniel Vetter case CM_MOVE: 3506104c370SDaniel Vetter default: 3516104c370SDaniel Vetter ops->cursor_state.enable = (use_sw) ? 0 : 1; 3526104c370SDaniel Vetter break; 3536104c370SDaniel Vetter } 3546104c370SDaniel Vetter 3556104c370SDaniel Vetter cursor.image.data = src; 3566104c370SDaniel Vetter cursor.image.fg_color = ops->cursor_state.image.fg_color; 3576104c370SDaniel Vetter cursor.image.bg_color = ops->cursor_state.image.bg_color; 3586104c370SDaniel Vetter cursor.image.dx = ops->cursor_state.image.dx; 3596104c370SDaniel Vetter cursor.image.dy = ops->cursor_state.image.dy; 3606104c370SDaniel Vetter cursor.image.height = ops->cursor_state.image.height; 3616104c370SDaniel Vetter cursor.image.width = ops->cursor_state.image.width; 3626104c370SDaniel Vetter cursor.hot.x = ops->cursor_state.hot.x; 3636104c370SDaniel Vetter cursor.hot.y = ops->cursor_state.hot.y; 3646104c370SDaniel Vetter cursor.mask = ops->cursor_state.mask; 3656104c370SDaniel Vetter cursor.enable = ops->cursor_state.enable; 3666104c370SDaniel Vetter cursor.image.depth = 1; 3676104c370SDaniel Vetter cursor.rop = ROP_XOR; 3686104c370SDaniel Vetter 3696104c370SDaniel Vetter if (info->fbops->fb_cursor) 3706104c370SDaniel Vetter err = info->fbops->fb_cursor(info, &cursor); 3716104c370SDaniel Vetter 3726104c370SDaniel Vetter if (err) 3736104c370SDaniel Vetter soft_cursor(info, &cursor); 3746104c370SDaniel Vetter 3756104c370SDaniel Vetter ops->cursor_reset = 0; 3766104c370SDaniel Vetter } 3776104c370SDaniel Vetter 3786104c370SDaniel Vetter static int cw_update_start(struct fb_info *info) 3796104c370SDaniel Vetter { 3806104c370SDaniel Vetter struct fbcon_ops *ops = info->fbcon_par; 3816104c370SDaniel Vetter u32 vxres = GETVXRES(ops->p->scrollmode, info); 3826104c370SDaniel Vetter u32 xoffset; 3836104c370SDaniel Vetter int err; 3846104c370SDaniel Vetter 3856104c370SDaniel Vetter xoffset = vxres - (info->var.xres + ops->var.yoffset); 3866104c370SDaniel Vetter ops->var.yoffset = ops->var.xoffset; 3876104c370SDaniel Vetter ops->var.xoffset = xoffset; 3886104c370SDaniel Vetter err = fb_pan_display(info, &ops->var); 3896104c370SDaniel Vetter ops->var.xoffset = info->var.xoffset; 3906104c370SDaniel Vetter ops->var.yoffset = info->var.yoffset; 3916104c370SDaniel Vetter ops->var.vmode = info->var.vmode; 3926104c370SDaniel Vetter return err; 3936104c370SDaniel Vetter } 3946104c370SDaniel Vetter 3956104c370SDaniel Vetter void fbcon_rotate_cw(struct fbcon_ops *ops) 3966104c370SDaniel Vetter { 3976104c370SDaniel Vetter ops->bmove = cw_bmove; 3986104c370SDaniel Vetter ops->clear = cw_clear; 3996104c370SDaniel Vetter ops->putcs = cw_putcs; 4006104c370SDaniel Vetter ops->clear_margins = cw_clear_margins; 4016104c370SDaniel Vetter ops->cursor = cw_cursor; 4026104c370SDaniel Vetter ops->update_start = cw_update_start; 4036104c370SDaniel Vetter } 4046104c370SDaniel Vetter EXPORT_SYMBOL(fbcon_rotate_cw); 405