diff options
Diffstat (limited to 'drivers/tty/vt/vt.c')
-rw-r--r-- | drivers/tty/vt/vt.c | 70 |
1 files changed, 37 insertions, 33 deletions
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c index e716839fab6..2156188db4a 100644 --- a/drivers/tty/vt/vt.c +++ b/drivers/tty/vt/vt.c @@ -99,7 +99,6 @@ #include <linux/notifier.h> #include <linux/device.h> #include <linux/io.h> -#include <asm/system.h> #include <linux/uaccess.h> #include <linux/kdb.h> #include <linux/ctype.h> @@ -1028,9 +1027,9 @@ void vc_deallocate(unsigned int currcons) * VT102 emulator */ -#define set_kbd(vc, x) set_vc_kbd_mode(kbd_table + (vc)->vc_num, (x)) -#define clr_kbd(vc, x) clr_vc_kbd_mode(kbd_table + (vc)->vc_num, (x)) -#define is_kbd(vc, x) vc_kbd_mode(kbd_table + (vc)->vc_num, (x)) +#define set_kbd(vc, x) vt_set_kbd_mode_bit((vc)->vc_num, (x)) +#define clr_kbd(vc, x) vt_clr_kbd_mode_bit((vc)->vc_num, (x)) +#define is_kbd(vc, x) vt_get_kbd_mode_bit((vc)->vc_num, (x)) #define decarm VC_REPEAT #define decckm VC_CKMODE @@ -1652,16 +1651,7 @@ static void reset_terminal(struct vc_data *vc, int do_clear) vc->vc_deccm = global_cursor_default; vc->vc_decim = 0; - set_kbd(vc, decarm); - clr_kbd(vc, decckm); - clr_kbd(vc, kbdapplic); - clr_kbd(vc, lnm); - kbd_table[vc->vc_num].lockstate = 0; - kbd_table[vc->vc_num].slockstate = 0; - kbd_table[vc->vc_num].ledmode = LED_SHOW_FLAGS; - kbd_table[vc->vc_num].ledflagstate = kbd_table[vc->vc_num].default_ledflagstate; - /* do not do set_leds here because this causes an endless tasklet loop - when the keyboard hasn't been initialized yet */ + vt_reset_keyboard(vc->vc_num); vc->vc_cursor_type = cur_default; vc->vc_complement_mask = vc->vc_s_complement_mask; @@ -1979,7 +1969,7 @@ static void do_con_trol(struct tty_struct *tty, struct vc_data *vc, int c) case 'q': /* DECLL - but only 3 leds */ /* map 0,1,2,3 to 0,1,2,4 */ if (vc->vc_par[0] < 4) - setledstate(kbd_table + vc->vc_num, + vt_set_led_state(vc->vc_num, (vc->vc_par[0] < 3) ? vc->vc_par[0] : 4); return; case 'r': @@ -2632,7 +2622,9 @@ int tioclinux(struct tty_struct *tty, unsigned long arg) console_unlock(); break; case TIOCL_SELLOADLUT: + console_lock(); ret = sel_loadlut(p); + console_unlock(); break; case TIOCL_GETSHIFTSTATE: @@ -2642,15 +2634,19 @@ int tioclinux(struct tty_struct *tty, unsigned long arg) * kernel-internal variable; programs not closely * related to the kernel should not use this. */ - data = shift_state; + data = vt_get_shift_state(); ret = __put_user(data, p); break; case TIOCL_GETMOUSEREPORTING: + console_lock(); /* May be overkill */ data = mouse_reporting(); + console_unlock(); ret = __put_user(data, p); break; case TIOCL_SETVESABLANK: + console_lock(); ret = set_vesa_blanking(p); + console_unlock(); break; case TIOCL_GETKMSGREDIRECT: data = vt_get_kmsg_redirect(); @@ -2667,13 +2663,21 @@ int tioclinux(struct tty_struct *tty, unsigned long arg) } break; case TIOCL_GETFGCONSOLE: + /* No locking needed as this is a transiently + correct return anyway if the caller hasn't + disabled switching */ ret = fg_console; break; case TIOCL_SCROLLCONSOLE: if (get_user(lines, (s32 __user *)(p+4))) { ret = -EFAULT; } else { + /* Need the console lock here. Note that lots + of other calls need fixing before the lock + is actually useful ! */ + console_lock(); scrollfront(vc_cons[fg_console].d, lines); + console_unlock(); ret = 0; } break; @@ -2753,8 +2757,7 @@ static void con_stop(struct tty_struct *tty) console_num = tty->index; if (!vc_cons_allocated(console_num)) return; - set_vc_kbd_led(kbd_table + console_num, VC_SCROLLOCK); - set_leds(); + vt_kbd_con_stop(console_num); } /* @@ -2768,8 +2771,7 @@ static void con_start(struct tty_struct *tty) console_num = tty->index; if (!vc_cons_allocated(console_num)) return; - clr_vc_kbd_led(kbd_table + console_num, VC_SCROLLOCK); - set_leds(); + vt_kbd_con_start(console_num); } static void con_flush_chars(struct tty_struct *tty) @@ -2930,11 +2932,10 @@ static int __init con_init(void) gotoxy(vc, vc->vc_x, vc->vc_y); csi_J(vc, 0); update_screen(vc); - pr_info("Console: %s %s %dx%d", + pr_info("Console: %s %s %dx%d\n", vc->vc_can_do_color ? "colour" : "mono", display_desc, vc->vc_cols, vc->vc_rows); printable = 1; - printk("\n"); console_unlock(); @@ -2991,7 +2992,7 @@ int __init vty_init(const struct file_operations *console_fops) console_driver = alloc_tty_driver(MAX_NR_CONSOLES); if (!console_driver) panic("Couldn't allocate console driver\n"); - console_driver->owner = THIS_MODULE; + console_driver->name = "tty"; console_driver->name_base = 1; console_driver->major = TTY_MAJOR; @@ -3980,9 +3981,6 @@ static int con_font_get(struct vc_data *vc, struct console_font_op *op) int rc = -EINVAL; int c; - if (vc->vc_mode != KD_TEXT) - return -EINVAL; - if (op->data) { font.data = kmalloc(max_font_size, GFP_KERNEL); if (!font.data) @@ -3991,7 +3989,9 @@ static int con_font_get(struct vc_data *vc, struct console_font_op *op) font.data = NULL; console_lock(); - if (vc->vc_sw->con_font_get) + if (vc->vc_mode != KD_TEXT) + rc = -EINVAL; + else if (vc->vc_sw->con_font_get) rc = vc->vc_sw->con_font_get(vc, &font); else rc = -ENOSYS; @@ -4073,7 +4073,9 @@ static int con_font_set(struct vc_data *vc, struct console_font_op *op) if (IS_ERR(font.data)) return PTR_ERR(font.data); console_lock(); - if (vc->vc_sw->con_font_set) + if (vc->vc_mode != KD_TEXT) + rc = -EINVAL; + else if (vc->vc_sw->con_font_set) rc = vc->vc_sw->con_font_set(vc, &font, op->flags); else rc = -ENOSYS; @@ -4089,8 +4091,6 @@ static int con_font_default(struct vc_data *vc, struct console_font_op *op) char *s = name; int rc; - if (vc->vc_mode != KD_TEXT) - return -EINVAL; if (!op->data) s = NULL; @@ -4100,6 +4100,10 @@ static int con_font_default(struct vc_data *vc, struct console_font_op *op) name[MAX_FONT_NAME - 1] = 0; console_lock(); + if (vc->vc_mode != KD_TEXT) { + console_unlock(); + return -EINVAL; + } if (vc->vc_sw->con_font_default) rc = vc->vc_sw->con_font_default(vc, &font, s); else @@ -4117,11 +4121,11 @@ static int con_font_copy(struct vc_data *vc, struct console_font_op *op) int con = op->height; int rc; - if (vc->vc_mode != KD_TEXT) - return -EINVAL; console_lock(); - if (!vc->vc_sw->con_font_copy) + if (vc->vc_mode != KD_TEXT) + rc = -EINVAL; + else if (!vc->vc_sw->con_font_copy) rc = -ENOSYS; else if (con < 0 || !vc_cons_allocated(con)) rc = -ENOTTY; |