diff options
| -rw-r--r-- | drivers/char/vt.c | 13 | ||||
| -rw-r--r-- | drivers/char/vt_ioctl.c | 15 | ||||
| -rw-r--r-- | drivers/usb/misc/sisusbvga/sisusb_con.c | 3 | ||||
| -rw-r--r-- | drivers/video/console/fbcon.c | 2 | ||||
| -rw-r--r-- | drivers/video/console/vgacon.c | 7 | ||||
| -rw-r--r-- | include/linux/console.h | 3 | ||||
| -rw-r--r-- | include/linux/console_struct.h | 1 |
7 files changed, 32 insertions, 12 deletions
diff --git a/drivers/char/vt.c b/drivers/char/vt.c index edb7002a321..0d56f8fc105 100644 --- a/drivers/char/vt.c +++ b/drivers/char/vt.c @@ -750,13 +750,15 @@ int vc_allocate(unsigned int currcons) /* return 0 on success */ return 0; } -static inline int resize_screen(struct vc_data *vc, int width, int height) +static inline int resize_screen(struct vc_data *vc, int width, int height, + int user) { /* Resizes the resolution of the display adapater */ int err = 0; if (vc->vc_mode != KD_GRAPHICS && vc->vc_sw->con_resize) - err = vc->vc_sw->con_resize(vc, width, height); + err = vc->vc_sw->con_resize(vc, width, height, user); + return err; } @@ -772,7 +774,7 @@ int vc_resize(struct vc_data *vc, unsigned int cols, unsigned int lines) unsigned long old_origin, new_origin, new_scr_end, rlth, rrem, err = 0; unsigned int old_cols, old_rows, old_row_size, old_screen_size; unsigned int new_cols, new_rows, new_row_size, new_screen_size; - unsigned int end; + unsigned int end, user; unsigned short *newscreen; WARN_CONSOLE_UNLOCKED(); @@ -780,6 +782,9 @@ int vc_resize(struct vc_data *vc, unsigned int cols, unsigned int lines) if (!vc) return -ENXIO; + user = vc->vc_resize_user; + vc->vc_resize_user = 0; + if (cols > VC_RESIZE_MAXCOL || lines > VC_RESIZE_MAXROW) return -EINVAL; @@ -800,7 +805,7 @@ int vc_resize(struct vc_data *vc, unsigned int cols, unsigned int lines) old_row_size = vc->vc_size_row; old_screen_size = vc->vc_screenbuf_size; - err = resize_screen(vc, new_cols, new_rows); + err = resize_screen(vc, new_cols, new_rows, user); if (err) { kfree(newscreen); return err; diff --git a/drivers/char/vt_ioctl.c b/drivers/char/vt_ioctl.c index 7a61a2a9aaf..f69a8258095 100644 --- a/drivers/char/vt_ioctl.c +++ b/drivers/char/vt_ioctl.c @@ -847,14 +847,24 @@ int vt_ioctl(struct tty_struct *tty, struct file * file, case VT_RESIZE: { struct vt_sizes __user *vtsizes = up; + struct vc_data *vc; + ushort ll,cc; if (!perm) return -EPERM; if (get_user(ll, &vtsizes->v_rows) || get_user(cc, &vtsizes->v_cols)) return -EFAULT; - for (i = 0; i < MAX_NR_CONSOLES; i++) - vc_lock_resize(vc_cons[i].d, cc, ll); + + for (i = 0; i < MAX_NR_CONSOLES; i++) { + vc = vc_cons[i].d; + + if (vc) { + vc->vc_resize_user = 1; + vc_lock_resize(vc_cons[i].d, cc, ll); + } + } + return 0; } @@ -900,6 +910,7 @@ int vt_ioctl(struct tty_struct *tty, struct file * file, vc_cons[i].d->vc_scan_lines = vlin; if (clin) vc_cons[i].d->vc_font.height = clin; + vc_cons[i].d->vc_resize_user = 1; vc_resize(vc_cons[i].d, cc, ll); release_console_sem(); } diff --git a/drivers/usb/misc/sisusbvga/sisusb_con.c b/drivers/usb/misc/sisusbvga/sisusb_con.c index 43722e5a49d..b624320df90 100644 --- a/drivers/usb/misc/sisusbvga/sisusb_con.c +++ b/drivers/usb/misc/sisusbvga/sisusb_con.c @@ -1042,7 +1042,8 @@ sisusbcon_set_origin(struct vc_data *c) /* Interface routine */ static int -sisusbcon_resize(struct vc_data *c, unsigned int newcols, unsigned int newrows) +sisusbcon_resize(struct vc_data *c, unsigned int newcols, unsigned int newrows, + unsigned int user) { struct sisusb_usb_data *sisusb; int fh; diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c index 6d0dcde66eb..97a0224a0cf 100644 --- a/drivers/video/console/fbcon.c +++ b/drivers/video/console/fbcon.c @@ -2168,7 +2168,7 @@ static __inline__ void updatescrollmode(struct display *p, } static int fbcon_resize(struct vc_data *vc, unsigned int width, - unsigned int height) + unsigned int height, unsigned int user) { struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; struct fbcon_ops *ops = info->fbcon_par; diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c index d18b73aafa0..e9afb7ebd56 100644 --- a/drivers/video/console/vgacon.c +++ b/drivers/video/console/vgacon.c @@ -1278,13 +1278,14 @@ static int vgacon_font_get(struct vc_data *c, struct console_font *font) #endif static int vgacon_resize(struct vc_data *c, unsigned int width, - unsigned int height) + unsigned int height, unsigned int user) { if (width % 2 || width > ORIG_VIDEO_COLS || height > (ORIG_VIDEO_LINES * vga_default_font_height)/ c->vc_font.height) - /* let svgatextmode tinker with video timings */ - return 0; + /* let svgatextmode tinker with video timings and + return success */ + return (user) ? 0 : -EINVAL; if (CON_IS_VISIBLE(c) && !vga_is_gfx) /* who knows */ vgacon_doresize(c, width, height); diff --git a/include/linux/console.h b/include/linux/console.h index 56a7bcda49c..0a4542ddb73 100644 --- a/include/linux/console.h +++ b/include/linux/console.h @@ -45,7 +45,8 @@ struct consw { int (*con_font_get)(struct vc_data *, struct console_font *); int (*con_font_default)(struct vc_data *, struct console_font *, char *); int (*con_font_copy)(struct vc_data *, int); - int (*con_resize)(struct vc_data *, unsigned int, unsigned int); + int (*con_resize)(struct vc_data *, unsigned int, unsigned int, + unsigned int); int (*con_set_palette)(struct vc_data *, unsigned char *); int (*con_scrolldelta)(struct vc_data *, int); int (*con_set_origin)(struct vc_data *); diff --git a/include/linux/console_struct.h b/include/linux/console_struct.h index dc77fed7b28..d71f7c0f931 100644 --- a/include/linux/console_struct.h +++ b/include/linux/console_struct.h @@ -100,6 +100,7 @@ struct vc_data { unsigned char vc_G1_charset; unsigned char vc_saved_G0; unsigned char vc_saved_G1; + unsigned int vc_resize_user; /* resize request from user */ unsigned int vc_bell_pitch; /* Console bell pitch */ unsigned int vc_bell_duration; /* Console bell duration */ struct vc_data **vc_display_fg; /* [!] Ptr to var holding fg console for this display */ |