2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 1998 Nicolas Souchu
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 #ifndef __DEV_SMBUS_SMBCONF_H
31 #define __DEV_SMBUS_SMBCONF_H
33 #include <sys/queue.h>
35 #define SMBPRI (PZERO+8) /* XXX sleep/wakeup queue priority */
37 #define n(flags) (~(flags) & (flags))
39 /* Order constants for smbus children. */
40 #define SMBUS_ORDER_HINTED 20
41 #define SMBUS_ORDER_PNP 40
44 * How tsleep() is called in smb_request_bus().
46 #define SMB_DONTWAIT 0
54 #define SMB_REQUEST_BUS 0x1
55 #define SMB_RELEASE_BUS 0x2
60 #define SMB_ENOERR 0x0
61 #define SMB_EBUSERR 0x1
62 #define SMB_ENOTSUPP 0x2
63 #define SMB_ENOACK 0x4
64 #define SMB_ECOLLI 0x8
65 #define SMB_EABORT 0x10
66 #define SMB_ETIMEOUT 0x20
67 #define SMB_EBUSY 0x40
68 #define SMB_EINVAL 0x100
71 * How Quick command is executed
73 #define SMB_QWRITE 0x0
80 SMBUS_IVAR_ADDR, /* slave address of the device */
83 int smbus_request_bus(device_t, device_t, int);
84 int smbus_release_bus(device_t, device_t);
85 device_t smbus_alloc_bus(device_t);
86 int smbus_error(int error);
88 void smbus_intr(device_t, u_char, char low, char high, int error);
90 #define SMBUS_ACCESSOR(var, ivar, type) \
91 __BUS_ACCESSOR(smbus, var, SMBUS, ivar, type)
93 SMBUS_ACCESSOR(addr, ADDR, int)
97 extern driver_t smbus_driver;
98 extern devclass_t smbus_devclass;
100 #define smbus_quick(bus,slave,how) \
101 (SMBUS_QUICK(device_get_parent(bus), slave, how))
102 #define smbus_sendb(bus,slave,byte) \
103 (SMBUS_SENDB(device_get_parent(bus), slave, byte))
104 #define smbus_recvb(bus,slave,byte) \
105 (SMBUS_RECVB(device_get_parent(bus), slave, byte))
106 #define smbus_writeb(bus,slave,cmd,byte) \
107 (SMBUS_WRITEB(device_get_parent(bus), slave, cmd, byte))
108 #define smbus_writew(bus,slave,cmd,word) \
109 (SMBUS_WRITEW(device_get_parent(bus), slave, cmd, word))
110 #define smbus_readb(bus,slave,cmd,byte) \
111 (SMBUS_READB(device_get_parent(bus), slave, cmd, byte))
112 #define smbus_readw(bus,slave,cmd,word) \
113 (SMBUS_READW(device_get_parent(bus), slave, cmd, word))
114 #define smbus_pcall(bus,slave,cmd,sdata,rdata) \
115 (SMBUS_PCALL(device_get_parent(bus), slave, cmd, sdata, rdata))
116 #define smbus_bwrite(bus,slave,cmd,count,buf) \
117 (SMBUS_BWRITE(device_get_parent(bus), slave, cmd, count, buf))
118 #define smbus_bread(bus,slave,cmd,count,buf) \
119 (SMBUS_BREAD(device_get_parent(bus), slave, cmd, count, buf))
120 #define smbus_trans(bus,slave,cmd,op,wbuf,wcount,rbuf,rcount,actualp) \
121 (SMBUS_TRANS(device_get_parent(bus), slave, cmd, op, \
122 wbuf, wcount, rbuf, rcount, actualp))
124 #define SMBUS_MODVER 1
125 #define SMBUS_MINVER 1
126 #define SMBUS_MAXVER 1
127 #define SMBUS_PREFVER SMBUS_MODVER
129 #endif /* __DEV_SMBUS_SMBCONF_H */