diff options
Diffstat (limited to 'kernel/include/linux/vt_kern.h')
| -rw-r--r-- | kernel/include/linux/vt_kern.h | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/kernel/include/linux/vt_kern.h b/kernel/include/linux/vt_kern.h new file mode 100644 index 000000000..8d7634247 --- /dev/null +++ b/kernel/include/linux/vt_kern.h @@ -0,0 +1,196 @@ +#ifndef _VT_KERN_H +#define _VT_KERN_H + +/* + * this really is an extension of the vc_cons structure in console.c, but + * with information needed by the vt package + */ + +#include <linux/vt.h> +#include <linux/kd.h> +#include <linux/tty.h> +#include <linux/mutex.h> +#include <linux/console_struct.h> +#include <linux/mm.h> +#include <linux/consolemap.h> +#include <linux/notifier.h> + +/* + * Presently, a lot of graphics programs do not restore the contents of + * the higher font pages. Defining this flag will avoid use of them, but + * will lose support for PIO_FONTRESET. Note that many font operations are + * not likely to work with these programs anyway; they need to be + * fixed. The linux/Documentation directory includes a code snippet + * to save and restore the text font. + */ +#ifdef CONFIG_VGA_CONSOLE +#define BROKEN_GRAPHICS_PROGRAMS 1 +#endif + +extern void kd_mksound(unsigned int hz, unsigned int ticks); +extern int kbd_rate(struct kbd_repeat *rep); +extern int fg_console, last_console, want_console; + +/* console.c */ + +int vc_allocate(unsigned int console); +int vc_cons_allocated(unsigned int console); +int vc_resize(struct vc_data *vc, unsigned int cols, unsigned int lines); +struct vc_data *vc_deallocate(unsigned int console); +void reset_palette(struct vc_data *vc); +void do_blank_screen(int entering_gfx); +void do_unblank_screen(int leaving_gfx); +void unblank_screen(void); +void poke_blanked_console(void); +int con_font_op(struct vc_data *vc, struct console_font_op *op); +int con_set_cmap(unsigned char __user *cmap); +int con_get_cmap(unsigned char __user *cmap); +void scrollback(struct vc_data *vc, int lines); +void scrollfront(struct vc_data *vc, int lines); +void clear_buffer_attributes(struct vc_data *vc); +void update_region(struct vc_data *vc, unsigned long start, int count); +void redraw_screen(struct vc_data *vc, int is_switch); +#define update_screen(x) redraw_screen(x, 0) +#define switch_screen(x) redraw_screen(x, 1) + +struct tty_struct; +int tioclinux(struct tty_struct *tty, unsigned long arg); + +#ifdef CONFIG_CONSOLE_TRANSLATIONS +/* consolemap.c */ + +struct unimapinit; +struct unipair; + +int con_set_trans_old(unsigned char __user * table); +int con_get_trans_old(unsigned char __user * table); +int con_set_trans_new(unsigned short __user * table); +int con_get_trans_new(unsigned short __user * table); +int con_clear_unimap(struct vc_data *vc, struct unimapinit *ui); +int con_set_unimap(struct vc_data *vc, ushort ct, struct unipair __user *list); +int con_get_unimap(struct vc_data *vc, ushort ct, ushort __user *uct, struct unipair __user *list); +int con_set_default_unimap(struct vc_data *vc); +void con_free_unimap(struct vc_data *vc); +int con_copy_unimap(struct vc_data *dst_vc, struct vc_data *src_vc); + +#define vc_translate(vc, c) ((vc)->vc_translate[(c) | \ + ((vc)->vc_toggle_meta ? 0x80 : 0)]) +#else +static inline int con_set_trans_old(unsigned char __user *table) +{ + return 0; +} +static inline int con_get_trans_old(unsigned char __user *table) +{ + return -EINVAL; +} +static inline int con_set_trans_new(unsigned short __user *table) +{ + return 0; +} +static inline int con_get_trans_new(unsigned short __user *table) +{ + return -EINVAL; +} +static inline int con_clear_unimap(struct vc_data *vc, struct unimapinit *ui) +{ + return 0; +} +static inline +int con_set_unimap(struct vc_data *vc, ushort ct, struct unipair __user *list) +{ + return 0; +} +static inline +int con_get_unimap(struct vc_data *vc, ushort ct, ushort __user *uct, + struct unipair __user *list) +{ + return -EINVAL; +} +static inline int con_set_default_unimap(struct vc_data *vc) +{ + return 0; +} +static inline void con_free_unimap(struct vc_data *vc) +{ +} +static inline void con_protect_unimap(struct vc_data *vc, int rdonly) +{ +} +static inline +int con_copy_unimap(struct vc_data *dst_vc, struct vc_data *src_vc) +{ + return 0; +} + +#define vc_translate(vc, c) (c) +#endif + +/* vt.c */ +void vt_event_post(unsigned int event, unsigned int old, unsigned int new); +int vt_waitactive(int n); +void change_console(struct vc_data *new_vc); +void reset_vc(struct vc_data *vc); +extern int do_unbind_con_driver(const struct consw *csw, int first, int last, + int deflt); +int vty_init(const struct file_operations *console_fops); + +static inline bool vt_force_oops_output(struct vc_data *vc) +{ + if (oops_in_progress && vc->vc_panic_force_write && panic_timeout >= 0) + return true; + return false; +} + +extern char vt_dont_switch; +extern int default_utf8; +extern int global_cursor_default; + +struct vt_spawn_console { + spinlock_t lock; + struct pid *pid; + int sig; +}; +extern struct vt_spawn_console vt_spawn_con; + +extern int vt_move_to_console(unsigned int vt, int alloc); + +/* Interfaces for VC notification of character events (for accessibility etc) */ + +struct vt_notifier_param { + struct vc_data *vc; /* VC on which the update happened */ + unsigned int c; /* Printed char */ +}; + +extern int register_vt_notifier(struct notifier_block *nb); +extern int unregister_vt_notifier(struct notifier_block *nb); + +extern void hide_boot_cursor(bool hide); + +/* keyboard provided interfaces */ +extern int vt_do_diacrit(unsigned int cmd, void __user *up, int eperm); +extern int vt_do_kdskbmode(int console, unsigned int arg); +extern int vt_do_kdskbmeta(int console, unsigned int arg); +extern int vt_do_kbkeycode_ioctl(int cmd, struct kbkeycode __user *user_kbkc, + int perm); +extern int vt_do_kdsk_ioctl(int cmd, struct kbentry __user *user_kbe, + int perm, int console); +extern int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, + int perm); +extern int vt_do_kdskled(int console, int cmd, unsigned long arg, int perm); +extern int vt_do_kdgkbmode(int console); +extern int vt_do_kdgkbmeta(int console); +extern void vt_reset_unicode(int console); +extern int vt_get_shift_state(void); +extern void vt_reset_keyboard(int console); +extern int vt_get_leds(int console, int flag); +extern int vt_get_kbd_mode_bit(int console, int bit); +extern void vt_set_kbd_mode_bit(int console, int bit); +extern void vt_clr_kbd_mode_bit(int console, int bit); +extern void vt_set_led_state(int console, int leds); +extern void vt_set_led_state(int console, int leds); +extern void vt_kbd_con_start(int console); +extern void vt_kbd_con_stop(int console); + + +#endif /* _VT_KERN_H */ |