smbconf.h revision 162234 
1/*-
2 * Copyright (c) 1998 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 * $FreeBSD: head/sys/dev/smbus/smbconf.h 162234 2006-09-11 20:52:41Z jhb $
27 */
28#ifndef __SMBONF_H
29#define __SMBONF_H
30
31#include <sys/queue.h>
32
33#define SMBPRI (PZERO+8)		/* XXX sleep/wakeup queue priority */
34
35#define n(flags) (~(flags) & (flags))
36
37/*
38 * How tsleep() is called in smb_request_bus().
39 */
40#define SMB_DONTWAIT	0
41#define SMB_NOINTR	0
42#define SMB_WAIT	0x1
43#define SMB_INTR	0x2
44
45/*
46 * callback index
47 */
48#define SMB_REQUEST_BUS	0x1
49#define SMB_RELEASE_BUS	0x2
50
51/*
52 * SMB bus errors
53 */
54#define SMB_ENOERR	0x0
55#define SMB_EBUSERR	0x1
56#define SMB_ENOTSUPP	0x2
57#define SMB_ENOACK	0x4
58#define SMB_ECOLLI	0x8
59#define SMB_EABORT	0x10
60#define SMB_ETIMEOUT	0x20
61#define SMB_EBUSY	0x40
62#define	SMB_EINVAL	0x100
63
64/*
65 * How Quick command is executed
66 */
67#define SMB_QWRITE	0x0
68#define SMB_QREAD	0x1
69
70/*
71 * ivars codes
72 */
73#define SMBUS_IVAR_ADDR	0x1	/* slave address of the device */
74
75int	smbus_request_bus(device_t, device_t, int);
76int	smbus_release_bus(device_t, device_t);
77device_t smbus_alloc_bus(device_t);
78int	smbus_error(int error);
79
80void	smbus_intr(device_t, u_char, char low, char high, int error);
81
82u_char	smbus_get_addr(device_t);
83
84extern driver_t smbus_driver;
85extern devclass_t smbus_devclass;
86
87#define smbus_quick(bus,slave,how) \
88	(SMBUS_QUICK(device_get_parent(bus), slave, how))
89#define smbus_sendb(bus,slave,byte) \
90	(SMBUS_SENDB(device_get_parent(bus), slave, byte))
91#define smbus_recvb(bus,slave,byte) \
92	(SMBUS_RECVB(device_get_parent(bus), slave, byte))
93#define smbus_writeb(bus,slave,cmd,byte) \
94	(SMBUS_WRITEB(device_get_parent(bus), slave, cmd, byte))
95#define smbus_writew(bus,slave,cmd,word) \
96	(SMBUS_WRITEW(device_get_parent(bus), slave, cmd, word))
97#define smbus_readb(bus,slave,cmd,byte) \
98	(SMBUS_READB(device_get_parent(bus), slave, cmd, byte))
99#define smbus_readw(bus,slave,cmd,word) \
100	(SMBUS_READW(device_get_parent(bus), slave, cmd, word))
101#define smbus_pcall(bus,slave,cmd,sdata,rdata) \
102	(SMBUS_PCALL(device_get_parent(bus), slave, cmd, sdata, rdata))
103#define smbus_bwrite(bus,slave,cmd,count,buf) \
104	(SMBUS_BWRITE(device_get_parent(bus), slave, cmd, count, buf))
105#define smbus_bread(bus,slave,cmd,count,buf) \
106	(SMBUS_BREAD(device_get_parent(bus), slave, cmd, count, buf))
107
108#define SMBUS_MODVER	1
109#define SMBUS_MINVER	1
110#define SMBUS_MAXVER	1
111#define SMBUS_PREFVER	SMBUS_MODVER
112
113#endif
114