xref: /freebsd/sys/dev/ppbus/ppbus_if.m (revision 069ac184)
1#-
2# Copyright (c) 1999 Nicolas Souchu
3# All rights reserved.
4#
5# Redistribution and use in source and binary forms, with or without
6# modification, are permitted provided that the following conditions
7# are met:
8# 1. Redistributions of source code must retain the above copyright
9#    notice, this list of conditions and the following disclaimer.
10# 2. Redistributions in binary form must reproduce the above copyright
11#    notice, this list of conditions and the following disclaimer in the
12#    documentation and/or other materials provided with the distribution.
13#
14# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24# SUCH DAMAGE.
25#
26#
27
28#include <sys/bus.h>
29#include <dev/ppbus/ppbconf.h>
30
31INTERFACE ppbus;
32
33#
34# Do low level i/o operations
35#
36METHOD u_char io {
37	device_t dev;
38	int opcode;
39	u_char *addr;
40	int cnt;
41	u_char byte;
42};
43
44#
45# Execution of a microsequence
46#
47METHOD int exec_microseq {
48	device_t dev;
49	struct ppb_microseq **ppb_microseq;
50};
51
52#
53# Reset EPP timeout
54#
55METHOD int reset_epp {
56	device_t dev;
57}
58
59#
60# Set chipset mode
61#
62METHOD int setmode {
63	device_t dev;
64	int mode;
65}
66
67#
68# Synchronize ECP FIFO
69#
70METHOD int ecp_sync {
71	device_t dev;
72}
73
74#
75# Do chipset dependent low level read
76#
77METHOD int read {
78	device_t dev;
79	char *buf;
80	int len;
81	int how;
82}
83
84#
85# Do chipset dependent low level write
86#
87METHOD int write {
88	device_t dev;
89	char *buf;
90	int len;
91	int how;
92}
93