projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * include/linux/serial.h | |
| 3 | * | |
| 4 | * Copyright (C) 1992 by Theodore Ts'o. | |
| 5 | * | |
| 6 | * Redistribution of this file is permitted under the terms of the GNU | |
| 7 | * Public License (GPL) | |
| 8 | */ | |
| 1da177e4 LT |
9 | #ifndef _LINUX_SERIAL_H |
| 10 | #define _LINUX_SERIAL_H | |
| 11 | ||
| 607ca46e | 12 | #include <uapi/linux/serial.h> |
| 34619de1 | 13 | #include <uapi/linux/serial_reg.h> |
| 1da177e4 | 14 | |
| 797bd4d4 JS |
15 | /* Helper for dealing with UART_LCR_WLEN* defines */ |
| 16 | #define UART_LCR_WLEN(x) ((x) - 5) | |
| ba3fe7ab | 17 | |
| 34619de1 IJ |
18 | /* FIFO and shifting register empty */ |
| 19 | #define UART_LSR_BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE) | |
| 20 | ||
| 21 | static inline bool uart_lsr_tx_empty(u16 lsr) | |
| 22 | { | |
| 23 | return (lsr & UART_LSR_BOTH_EMPTY) == UART_LSR_BOTH_EMPTY; | |
| 24 | } | |
| 25 | ||
| 1da177e4 LT |
26 | /* |
| 27 | * Counters of the input lines (CTS, DSR, RI, CD) interrupts | |
| 28 | */ | |
| 29 | ||
| 30 | struct async_icount { | |
| 31 | __u32 cts, dsr, rng, dcd, tx, rx; | |
| 32 | __u32 frame, parity, overrun, brk; | |
| 33 | __u32 buf_overrun; | |
| 34 | }; | |
| 35 | ||
| 661f83a6 RK |
36 | #include <linux/compiler.h> |
| 37 | ||
| 1da177e4 | 38 | #endif /* _LINUX_SERIAL_H */ |