2 * Copyright (c) 2003, 2004 Marcel Moolenaar
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 #ifndef _DEV_UART_CPU_H_
30 #define _DEV_UART_CPU_H_
33 * Low-level operations for use by console and/or debug port support.
36 int (*probe)(struct uart_bas *);
37 void (*init)(struct uart_bas *, int, int, int, int);
38 void (*term)(struct uart_bas *);
39 void (*putc)(struct uart_bas *, int);
40 int (*poll)(struct uart_bas *);
41 int (*getc)(struct uart_bas *);
44 extern struct uart_ops uart_i8251_ops;
45 extern struct uart_ops uart_ns8250_ops;
46 extern struct uart_ops uart_sab82532_ops;
47 extern struct uart_ops uart_z8530_ops;
49 extern bus_space_tag_t uart_bus_space_io;
50 extern bus_space_tag_t uart_bus_space_mem;
53 * Console and debug port device info.
57 SLIST_ENTRY(uart_devinfo) next;
65 #define UART_DEV_CONSOLE 0
66 #define UART_DEV_DBGPORT 1
67 #define UART_DEV_KEYBOARD 2
68 int (*attach)(struct uart_softc*);
69 int (*detach)(struct uart_softc*);
70 void *cookie; /* Type dependent use. */
73 int uart_cpu_eqres(struct uart_bas *, struct uart_bas *);
74 int uart_cpu_getdev(int, struct uart_devinfo *);
75 int uart_getenv(int, struct uart_devinfo *);
77 void uart_add_sysdev(struct uart_devinfo *);
80 * Operations for low-level access to the UART. Primarily for use
81 * by console and debug port logic.
84 uart_probe(struct uart_devinfo *di)
86 return (di->ops.probe(&di->bas));
90 uart_init(struct uart_devinfo *di)
92 di->ops.init(&di->bas, di->baudrate, di->databits, di->stopbits,
97 uart_term(struct uart_devinfo *di)
99 di->ops.term(&di->bas);
103 uart_putc(struct uart_devinfo *di, int c)
105 di->ops.putc(&di->bas, c);
109 uart_poll(struct uart_devinfo *di)
111 return (di->ops.poll(&di->bas));
115 uart_getc(struct uart_devinfo *di)
117 return (di->ops.getc(&di->bas));
120 #endif /* _DEV_UART_CPU_H_ */