[deliverable/linux.git] / include / linux / serial.h

/*
 * 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 <linux/types.h>

#include <linux/tty_flags.h>

#ifdef __KERNEL__
#include <asm/page.h>


/*
 * 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;
};

/*
 * The size of the serial xmit buffer is 1 page, or 4096 bytes
 */
#define SERIAL_XMIT_SIZE PAGE_SIZE

#endif

struct serial_struct {
	int	type;
	int	line;
	unsigned int	port;
	int	irq;
	int	flags;
	int	xmit_fifo_size;
	int	custom_divisor;
	int	baud_base;
	unsigned short	close_delay;
	char	io_type;
	char	reserved_char[1];
	int	hub6;
	unsigned short	closing_wait; /* time to wait before closing */
	unsigned short	closing_wait2; /* no longer used... */
	unsigned char	*iomem_base;
	unsigned short	iomem_reg_shift;
	unsigned int	port_high;
	unsigned long	iomap_base;	/* cookie passed into ioremap */
};

/*
 * For the close wait times, 0 means wait forever for serial port to
 * flush its output.  65535 means don't wait at all.
 */
#define ASYNC_CLOSING_WAIT_INF	0
#define ASYNC_CLOSING_WAIT_NONE	65535

/*
 * These are the supported serial types.
 */
#define PORT_UNKNOWN	0
#define PORT_8250	1
#define PORT_16450	2
#define PORT_16550	3
#define PORT_16550A	4
#define PORT_CIRRUS     5	/* usurped by cyclades.c */
#define PORT_16650	6
#define PORT_16650V2	7
#define PORT_16750	8
#define PORT_STARTECH	9	/* usurped by cyclades.c */
#define PORT_16C950	10	/* Oxford Semiconductor */
#define PORT_16654	11
#define PORT_16850	12
#define PORT_RSA	13	/* RSA-DV II/S card */
#define PORT_MAX	13

#define SERIAL_IO_PORT	0
#define SERIAL_IO_HUB6	1
#define SERIAL_IO_MEM	2

#define UART_CLEAR_FIFO		0x01
#define UART_USE_FIFO		0x02
#define UART_STARTECH		0x04
#define UART_NATSEMI		0x08


/*
 * Multiport serial configuration structure --- external structure
 */
struct serial_multiport_struct {
	int		irq;
	int		port1;
	unsigned char	mask1, match1;
	int		port2;
	unsigned char	mask2, match2;
	int		port3;
	unsigned char	mask3, match3;
	int		port4;
	unsigned char	mask4, match4;
	int		port_monitor;
	int	reserved[32];
};

/*
 * Serial input interrupt line counters -- external structure
 * Four lines can interrupt: CTS, DSR, RI, DCD
 */
struct serial_icounter_struct {
	int cts, dsr, rng, dcd;
	int rx, tx;
	int frame, overrun, parity, brk;
	int buf_overrun;
	int reserved[9];
};

/*
 * Serial interface for controlling RS485 settings on chips with suitable
 * support. Set with TIOCSRS485 and get with TIOCGRS485 if supported by your
 * platform. The set function returns the new state, with any unsupported bits
 * reverted appropriately.
 */

struct serial_rs485 {
	__u32	flags;			/* RS485 feature flags */
#define SER_RS485_ENABLED		(1 << 0)	/* If enabled */
#define SER_RS485_RTS_ON_SEND		(1 << 1)	/* Logical level for
							   RTS pin when
							   sending */
#define SER_RS485_RTS_AFTER_SEND	(1 << 2)	/* Logical level for
							   RTS pin after sent*/
#define SER_RS485_RX_DURING_TX		(1 << 4)
	__u32	delay_rts_before_send;	/* Delay before send (milliseconds) */
	__u32	delay_rts_after_send;	/* Delay after send (milliseconds) */
	__u32	padding[5];		/* Memory is cheap, new structs
					   are a royal PITA .. */
};

#ifdef __KERNEL__
#include <linux/compiler.h>

#endif /* __KERNEL__ */
#endif /* _LINUX_SERIAL_H */
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	*/
	9
	10	#ifndef _LINUX_SERIAL_H
	11	#define _LINUX_SERIAL_H
	12
4e57b681	13	#include <linux/types.h>
60c20fb8	14
ba3fe7ab AC	15	#include <linux/tty_flags.h>
ba3fe7ab AC	16
60c20fb8	17	#ifdef __KERNEL__
1da177e4 LT	18	#include <asm/page.h>
1da177e4 LT	19
ba3fe7ab	20
1da177e4 LT	21	/*
	22	* Counters of the input lines (CTS, DSR, RI, CD) interrupts
	23	*/
	24
	25	struct async_icount {
	26	__u32 cts, dsr, rng, dcd, tx, rx;
	27	__u32 frame, parity, overrun, brk;
	28	__u32 buf_overrun;
	29	};
	30
	31	/*
	32	* The size of the serial xmit buffer is 1 page, or 4096 bytes
	33	*/
	34	#define SERIAL_XMIT_SIZE PAGE_SIZE
	35
	36	#endif
	37
	38	struct serial_struct {
	39	int type;
	40	int line;
	41	unsigned int port;
	42	int irq;
	43	int flags;
	44	int xmit_fifo_size;
	45	int custom_divisor;
	46	int baud_base;
	47	unsigned short close_delay;
	48	char io_type;
	49	char reserved_char[1];
	50	int hub6;
	51	unsigned short closing_wait; /* time to wait before closing */
	52	unsigned short closing_wait2; /* no longer used... */
	53	unsigned char *iomem_base;
	54	unsigned short iomem_reg_shift;
	55	unsigned int port_high;
	56	unsigned long iomap_base; /* cookie passed into ioremap */
	57	};
	58
	59	/*
	60	* For the close wait times, 0 means wait forever for serial port to
	61	* flush its output. 65535 means don't wait at all.
	62	*/
	63	#define ASYNC_CLOSING_WAIT_INF 0
	64	#define ASYNC_CLOSING_WAIT_NONE 65535
	65
	66	/*
	67	* These are the supported serial types.
	68	*/
	69	#define PORT_UNKNOWN 0
	70	#define PORT_8250 1
	71	#define PORT_16450 2
	72	#define PORT_16550 3
	73	#define PORT_16550A 4
	74	#define PORT_CIRRUS 5 /* usurped by cyclades.c */
	75	#define PORT_16650 6
	76	#define PORT_16650V2 7
	77	#define PORT_16750 8
	78	#define PORT_STARTECH 9 /* usurped by cyclades.c */
	79	#define PORT_16C950 10 /* Oxford Semiconductor */
	80	#define PORT_16654 11
	81	#define PORT_16850 12
	82	#define PORT_RSA 13 /* RSA-DV II/S card */
71cad055	83	#define PORT_MAX 13
1da177e4 LT	84
	85	#define SERIAL_IO_PORT 0
	86	#define SERIAL_IO_HUB6 1
	87	#define SERIAL_IO_MEM 2
	88
1da177e4 LT	89	#define UART_CLEAR_FIFO 0x01
	90	#define UART_USE_FIFO 0x02
	91	#define UART_STARTECH 0x04
	92	#define UART_NATSEMI 0x08
	93
1da177e4 LT	94
	95	/*
	96	* Multiport serial configuration structure --- external structure
	97	*/
	98	struct serial_multiport_struct {
	99	int irq;
	100	int port1;
	101	unsigned char mask1, match1;
	102	int port2;
	103	unsigned char mask2, match2;
	104	int port3;
	105	unsigned char mask3, match3;
	106	int port4;
	107	unsigned char mask4, match4;
	108	int port_monitor;
	109	int reserved[32];
	110	};
	111
	112	/*
	113	* Serial input interrupt line counters -- external structure
	114	* Four lines can interrupt: CTS, DSR, RI, DCD
	115	*/
	116	struct serial_icounter_struct {
	117	int cts, dsr, rng, dcd;
	118	int rx, tx;
	119	int frame, overrun, parity, brk;
	120	int buf_overrun;
	121	int reserved[9];
	122	};
	123
c26c56c0 AC	124	/*
	125	* Serial interface for controlling RS485 settings on chips with suitable
	126	* support. Set with TIOCSRS485 and get with TIOCGRS485 if supported by your
	127	* platform. The set function returns the new state, with any unsupported bits
	128	* reverted appropriately.
	129	*/
	130
	131	struct serial_rs485 {
	132	__u32 flags; /* RS485 feature flags */
93f3350c CS	133	#define SER_RS485_ENABLED (1 << 0) /* If enabled */
	134	#define SER_RS485_RTS_ON_SEND (1 << 1) /* Logical level for
	135	RTS pin when
	136	sending */
	137	#define SER_RS485_RTS_AFTER_SEND (1 << 2) /* Logical level for
	138	RTS pin after sent*/
83cac9f3	139	#define SER_RS485_RX_DURING_TX (1 << 4)
93f3350c CS	140	__u32 delay_rts_before_send; /* Delay before send (milliseconds) */
93f3350c CS	141	__u32 delay_rts_after_send; /* Delay after send (milliseconds) */
1b633184	142	__u32 padding[5]; /* Memory is cheap, new structs
c26c56c0 AC	143	are a royal PITA .. */
c26c56c0 AC	144	};
1da177e4 LT	145
1da177e4 LT	146	#ifdef __KERNEL__
661f83a6 RK	147	#include <linux/compiler.h>
661f83a6 RK	148
1da177e4 LT	149	#endif /* __KERNEL__ */
1da177e4 LT	150	#endif /* _LINUX_SERIAL_H */