diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/amba/serial.h | 1 | ||||
| -rw-r--r-- | include/linux/init.h | 2 | ||||
| -rw-r--r-- | include/linux/tty.h | 7 | ||||
| -rw-r--r-- | include/linux/tty_flip.h | 11 | ||||
| -rw-r--r-- | include/linux/tty_ldisc.h | 6 |
5 files changed, 19 insertions, 8 deletions
diff --git a/include/linux/amba/serial.h b/include/linux/amba/serial.h index 0ddb5c02ad8b..0891ea0458f6 100644 --- a/include/linux/amba/serial.h +++ b/include/linux/amba/serial.h @@ -203,7 +203,6 @@ struct amba_pl011_data { bool (*dma_filter)(struct dma_chan *chan, void *filter_param); void *dma_rx_param; void *dma_tx_param; - bool dma_rx_poll_enable; unsigned int dma_rx_poll_rate; unsigned int dma_rx_poll_timeout; void (*init) (void); diff --git a/include/linux/init.h b/include/linux/init.h index 8e68a64bfe00..e1688802964f 100644 --- a/include/linux/init.h +++ b/include/linux/init.h @@ -286,9 +286,11 @@ void __init parse_early_options(char *cmdline); #define arch_initcall(fn) module_init(fn) #define subsys_initcall(fn) module_init(fn) #define fs_initcall(fn) module_init(fn) +#define rootfs_initcall(fn) module_init(fn) #define device_initcall(fn) module_init(fn) #define late_initcall(fn) module_init(fn) +#define console_initcall(fn) module_init(fn) #define security_initcall(fn) module_init(fn) /* Each module must use one module_init(). */ diff --git a/include/linux/tty.h b/include/linux/tty.h index 97d660ed70c1..ad98b4376968 100644 --- a/include/linux/tty.h +++ b/include/linux/tty.h @@ -39,10 +39,14 @@ struct tty_buffer { int size; int commit; int read; + int flags; /* Data points here */ unsigned long data[0]; }; +/* Values for .flags field of tty_buffer */ +#define TTYB_NORMAL 1 /* buffer has no flags buffer */ + static inline unsigned char *char_buf_ptr(struct tty_buffer *b, int ofs) { return ((unsigned char *)b->data) + ofs; @@ -60,7 +64,8 @@ struct tty_bufhead { atomic_t priority; struct tty_buffer sentinel; struct llist_head free; /* Free queue head */ - atomic_t memory_used; /* In-use buffers excluding free list */ + atomic_t mem_used; /* In-use buffers excluding free list */ + int mem_limit; struct tty_buffer *tail; /* Active buffer */ }; /* diff --git a/include/linux/tty_flip.h b/include/linux/tty_flip.h index 21ddd7d9ea1f..c28dd523f96e 100644 --- a/include/linux/tty_flip.h +++ b/include/linux/tty_flip.h @@ -1,6 +1,7 @@ #ifndef _LINUX_TTY_FLIP_H #define _LINUX_TTY_FLIP_H +extern int tty_buffer_set_limit(struct tty_port *port, int limit); extern int tty_buffer_space_avail(struct tty_port *port); extern int tty_buffer_request_room(struct tty_port *port, size_t size); extern int tty_insert_flip_string_flags(struct tty_port *port, @@ -9,8 +10,6 @@ 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); @@ -18,8 +17,12 @@ 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) { - *flag_buf_ptr(tb, tb->used) = flag; + int change; + + change = (tb->flags & TTYB_NORMAL) && (flag != TTY_NORMAL); + if (!change && tb->used < tb->size) { + if (~tb->flags & TTYB_NORMAL) + *flag_buf_ptr(tb, tb->used) = flag; *char_buf_ptr(tb, tb->used++) = ch; return 1; } diff --git a/include/linux/tty_ldisc.h b/include/linux/tty_ldisc.h index f15c898ff462..b8347c207cb8 100644 --- a/include/linux/tty_ldisc.h +++ b/include/linux/tty_ldisc.h @@ -84,7 +84,8 @@ * processing. <cp> is a pointer to the buffer of input * character received by the device. <fp> is a pointer to a * pointer of flag bytes which indicate whether a character was - * received with a parity error, etc. + * received with a parity error, etc. <fp> may be NULL to indicate + * all data received is TTY_NORMAL. * * void (*write_wakeup)(struct tty_struct *); * @@ -118,7 +119,8 @@ * processing. <cp> is a pointer to the buffer of input * character received by the device. <fp> is a pointer to a * pointer of flag bytes which indicate whether a character was - * received with a parity error, etc. + * received with a parity error, etc. <fp> may be NULL to indicate + * all data received is TTY_NORMAL. * If assigned, prefer this function for automatic flow control. */ |
