117 lines
3.1 KiB
C
117 lines
3.1 KiB
C
/*
|
|
* Copyright (c) 2003 Marcel Moolenaar
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _DEV_UART_CPU_H_
|
|
#define _DEV_UART_CPU_H_
|
|
|
|
/*
|
|
* Low-level operations for use by console and/or debug port support.
|
|
*/
|
|
struct uart_ops {
|
|
int (*probe)(struct uart_bas *);
|
|
void (*init)(struct uart_bas *, int, int, int, int);
|
|
void (*term)(struct uart_bas *);
|
|
void (*putc)(struct uart_bas *, int);
|
|
int (*poll)(struct uart_bas *);
|
|
int (*getc)(struct uart_bas *);
|
|
};
|
|
|
|
extern struct uart_ops uart_i8251_ops;
|
|
extern struct uart_ops uart_ns8250_ops;
|
|
extern struct uart_ops uart_sab82532_ops;
|
|
extern struct uart_ops uart_z8530_ops;
|
|
|
|
/*
|
|
* Console and debug port device info.
|
|
*/
|
|
struct uart_softc;
|
|
struct uart_devinfo {
|
|
SLIST_ENTRY(uart_devinfo) next;
|
|
struct uart_ops ops;
|
|
struct uart_bas bas;
|
|
int baudrate;
|
|
int databits;
|
|
int stopbits;
|
|
int parity;
|
|
int type;
|
|
#define UART_DEV_CONSOLE 0
|
|
#define UART_DEV_DBGPORT 1
|
|
#define UART_DEV_KEYBOARD 2
|
|
int (*attach)(struct uart_softc*);
|
|
int (*detach)(struct uart_softc*);
|
|
void *cookie; /* Type dependent use. */
|
|
};
|
|
|
|
int uart_cpu_eqres(struct uart_bas *, struct uart_bas *);
|
|
int uart_cpu_getdev(int, struct uart_devinfo *);
|
|
|
|
void uart_add_sysdev(struct uart_devinfo*);
|
|
|
|
/*
|
|
* Operations for low-level access to the UART. Primarily for use
|
|
* by console and debug port logic.
|
|
*/
|
|
static __inline int
|
|
uart_probe(struct uart_devinfo *di)
|
|
{
|
|
return (di->ops.probe(&di->bas));
|
|
}
|
|
|
|
static __inline void
|
|
uart_init(struct uart_devinfo *di)
|
|
{
|
|
di->ops.init(&di->bas, di->baudrate, di->databits, di->stopbits,
|
|
di->parity);
|
|
}
|
|
|
|
static __inline void
|
|
uart_term(struct uart_devinfo *di)
|
|
{
|
|
di->ops.term(&di->bas);
|
|
}
|
|
|
|
static __inline void
|
|
uart_putc(struct uart_devinfo *di, int c)
|
|
{
|
|
di->ops.putc(&di->bas, c);
|
|
}
|
|
|
|
static __inline int
|
|
uart_poll(struct uart_devinfo *di)
|
|
{
|
|
return (di->ops.poll(&di->bas));
|
|
}
|
|
|
|
static __inline int
|
|
uart_getc(struct uart_devinfo *di)
|
|
{
|
|
return (di->ops.getc(&di->bas));
|
|
}
|
|
|
|
#endif /* _DEV_UART_CPU_H_ */
|