1 #ifndef _LINUX_TTY_FLIP_H 2 #define _LINUX_TTY_FLIP_H 3 4 extern int tty_buffer_request_room(struct tty_port *port, size_t size); 5 extern int tty_insert_flip_string_flags(struct tty_port *port, 6 const unsigned char *chars, const char *flags, size_t size); 7 extern int tty_insert_flip_string_fixed_flag(struct tty_port *port, 8 const unsigned char *chars, char flag, size_t size); 9 extern int tty_prepare_flip_string(struct tty_port *port, 10 unsigned char **chars, size_t size); 11 extern int tty_prepare_flip_string_flags(struct tty_port *port, 12 unsigned char **chars, char **flags, size_t size); 13 void tty_schedule_flip(struct tty_struct *tty); 14 15 static inline int tty_insert_flip_char(struct tty_port *port, 16 unsigned char ch, char flag) 17 { 18 struct tty_buffer *tb = port->buf.tail; 19 if (tb && tb->used < tb->size) { 20 tb->flag_buf_ptr[tb->used] = flag; 21 tb->char_buf_ptr[tb->used++] = ch; 22 return 1; 23 } 24 return tty_insert_flip_string_flags(port, &ch, &flag, 1); 25 } 26 27 static inline int tty_insert_flip_string(struct tty_port *port, 28 const unsigned char *chars, size_t size) 29 { 30 return tty_insert_flip_string_fixed_flag(port, chars, TTY_NORMAL, size); 31 } 32 33 #endif /* _LINUX_TTY_FLIP_H */ 34