From d2e1446d81725c351dc73a03b397ce043fb18452 Mon Sep 17 00:00:00 2001 From: Meizu OpenSource Date: Mon, 15 Aug 2016 10:19:42 +0800 Subject: first commit --- include/linux/tty_flip.h | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 include/linux/tty_flip.h (limited to 'include/linux/tty_flip.h') diff --git a/include/linux/tty_flip.h b/include/linux/tty_flip.h new file mode 100644 index 000000000..e0f252633 --- /dev/null +++ b/include/linux/tty_flip.h @@ -0,0 +1,34 @@ +#ifndef _LINUX_TTY_FLIP_H +#define _LINUX_TTY_FLIP_H + +extern int tty_buffer_request_room(struct tty_port *port, size_t size); +extern int tty_insert_flip_string_flags(struct tty_port *port, + const unsigned char *chars, const char *flags, size_t size); +extern int tty_insert_flip_string_fixed_flag(struct tty_port *port, + const unsigned char *chars, char flag, size_t size); +extern int tty_prepare_flip_string(struct tty_port *port, + unsigned char **chars, size_t size); +extern int tty_prepare_flip_string_flags(struct tty_port *port, + unsigned char **chars, char **flags, size_t size); +extern void tty_flip_buffer_push(struct tty_port *port); +void tty_schedule_flip(struct tty_port *port); + +static inline int tty_insert_flip_char(struct tty_port *port, + unsigned char ch, char flag) +{ + struct tty_buffer *tb = port->buf.tail; + if (tb && tb->used < tb->size) { + tb->flag_buf_ptr[tb->used] = flag; + tb->char_buf_ptr[tb->used++] = ch; + return 1; + } + return tty_insert_flip_string_flags(port, &ch, &flag, 1); +} + +static inline int tty_insert_flip_string(struct tty_port *port, + const unsigned char *chars, size_t size) +{ + return tty_insert_flip_string_fixed_flag(port, chars, TTY_NORMAL, size); +} + +#endif /* _LINUX_TTY_FLIP_H */ -- cgit v1.2.3