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- /*
- * Private header file for the (dumb) serial driver
- *
- * Copyright (C) 1997 by Theodore Ts'o.
- *
- * Redistribution of this file is permitted under the terms of the GNU
- * Public License (GPL)
- */
- #ifndef _LINUX_SERIALP_H
- #define _LINUX_SERIALP_H
- /*
- * This is our internal structure for each serial port's state.
- *
- * Many fields are paralleled by the structure used by the serial_struct
- * structure.
- *
- * For definitions of the flags field, see tty.h
- */
- #include <linux/termios.h>
- #include <linux/workqueue.h>
- #include <linux/interrupt.h>
- #include <linux/circ_buf.h>
- #include <linux/wait.h>
- struct serial_state {
- int baud_base;
- unsigned long port;
- int irq;
- int flags;
- int type;
- int line;
- int xmit_fifo_size;
- int custom_divisor;
- int count;
- unsigned short close_delay;
- unsigned short closing_wait; /* time to wait before closing */
- struct async_icount icount;
- struct async_struct *info;
- };
- struct async_struct {
- unsigned long port;
- int xmit_fifo_size;
- struct serial_state *state;
- struct tty_struct *tty;
- int read_status_mask;
- int ignore_status_mask;
- int timeout;
- int quot;
- int x_char; /* xon/xoff character */
- int close_delay;
- unsigned short closing_wait;
- int IER; /* Interrupt Enable Register */
- int MCR; /* Modem control register */
- int line;
- int blocked_open; /* # of blocked opens */
- struct circ_buf xmit;
- wait_queue_head_t open_wait;
- wait_queue_head_t close_wait;
- wait_queue_head_t delta_msr_wait;
- struct async_struct *next_port; /* For the linked list */
- struct async_struct *prev_port;
- };
- #endif /* _LINUX_SERIAL_H */
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