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Diffstat (limited to 'include/linux/serial.h')
-rw-r--r-- | include/linux/serial.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/include/linux/serial.h b/include/linux/serial.h new file mode 100644 index 000000000..3d6fe3ef9 --- /dev/null +++ b/include/linux/serial.h @@ -0,0 +1,38 @@ +/* + * include/linux/serial.h + * + * Copyright (C) 1992 by Theodore Ts'o. + * + * Redistribution of this file is permitted under the terms of the GNU + * Public License (GPL) + */ +#ifndef _LINUX_SERIAL_H +#define _LINUX_SERIAL_H + +#include <uapi/linux/serial.h> +#include <uapi/linux/serial_reg.h> + +/* Helper for dealing with UART_LCR_WLEN* defines */ +#define UART_LCR_WLEN(x) ((x) - 5) + +/* FIFO and shifting register empty */ +#define UART_LSR_BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE) + +static inline bool uart_lsr_tx_empty(u16 lsr) +{ + return (lsr & UART_LSR_BOTH_EMPTY) == UART_LSR_BOTH_EMPTY; +} + +/* + * Counters of the input lines (CTS, DSR, RI, CD) interrupts + */ + +struct async_icount { + __u32 cts, dsr, rng, dcd, tx, rx; + __u32 frame, parity, overrun, brk; + __u32 buf_overrun; +}; + +#include <linux/compiler.h> + +#endif /* _LINUX_SERIAL_H */ |