[PATCH] TTY layer buffering revamp

[pandora-kernel.git] / include / linux / tty_flip.h

diff --git a/include/linux/tty_flip.h b/include/linux/tty_flip.h
index abe9bfc..be1400e 100644 (file)
--- a/include/linux/tty_flip.h
+++ b/include/linux/tty_flip.h
@@ -1,25 +1,33 @@
 #ifndef _LINUX_TTY_FLIP_H
 #define _LINUX_TTY_FLIP_H
 
+extern int tty_buffer_request_room(struct tty_struct *tty, size_t size);
+extern int tty_insert_flip_string(struct tty_struct *tty, unsigned char *chars, size_t size);
+extern int tty_insert_flip_string_flags(struct tty_struct *tty, unsigned char *chars, char *flags, size_t size);
+extern int tty_prepare_flip_string(struct tty_struct *tty, unsigned char **chars, size_t size);
+extern int tty_prepare_flip_string_flags(struct tty_struct *tty, unsigned char **chars, char **flags, size_t size);
+
 #ifdef INCLUDE_INLINE_FUNCS
 #define _INLINE_ extern
 #else
 #define _INLINE_ static __inline__
 #endif
 
-_INLINE_ void tty_insert_flip_char(struct tty_struct *tty,
+_INLINE_ int tty_insert_flip_char(struct tty_struct *tty,
                                   unsigned char ch, char flag)
 {
-       if (tty->flip.count < TTY_FLIPBUF_SIZE) {
-               tty->flip.count++;
-               *tty->flip.flag_buf_ptr++ = flag;
-               *tty->flip.char_buf_ptr++ = ch;
+       struct tty_buffer *tb = tty->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(tty, &ch, &flag, 1);
 }
 
 _INLINE_ void tty_schedule_flip(struct tty_struct *tty)
 {
-       schedule_delayed_work(&tty->flip.work, 1);
+       schedule_delayed_work(&tty->buf.work, 1);
 }
 
 #undef _INLINE_