sys/bus/smbus/smbconf.h

   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: src/sys/dev/smbus/smbconf.h,v 1.7 2002/03/23 15:47:28 nsouch Exp $
  27  * $DragonFly: src/sys/bus/smbus/smbconf.h,v 1.4 2003/11/14 21:46:18 daver Exp $
  28  */
  29 #ifndef __SMBONF_H
  30 #define __SMBONF_H
  31
  32 #include <sys/queue.h>
  33
  34 #define n(flags) (~(flags) & (flags))
  35
  36 /*
  37  * How tsleep() is called in smb_request_bus().
  38  */
  39 #define SMB_DONTWAIT    0
  40 #define SMB_NOINTR      0
  41 #define SMB_WAIT        0x1
  42 #define SMB_INTR        0x2
  43
  44 /*
  45  * callback index
  46  */
  47 #define SMB_REQUEST_BUS 0x1
  48 #define SMB_RELEASE_BUS 0x2
  49
  50 /*
  51  * SMB bus errors
  52  */
  53 #define SMB_ENOERR      0x0
  54 #define SMB_EBUSERR     0x1
  55 #define SMB_ENOTSUPP    0x2
  56 #define SMB_ENOACK      0x4
  57 #define SMB_ECOLLI      0x8
  58 #define SMB_EABORT      0x10
  59 #define SMB_ETIMEOUT    0x20
  60 #define SMB_EBUSY       0x40
  61
  62 /*
  63  * How Quick command is executed
  64  */
  65 #define SMB_QWRITE      0x0
  66 #define SMB_QREAD       0x1
  67
  68 /*
  69  * ivars codes
  70  */
  71 #define SMBUS_IVAR_ADDR 0x1     /* I2C address of the device */
  72
  73 extern int smbus_request_bus(device_t, device_t, int);
  74 extern int smbus_release_bus(device_t, device_t);
  75 extern device_t smbus_alloc_bus(device_t);
  76 extern int smbus_error(int error);
  77
  78 extern void smbus_intr(device_t, u_char, char low, char high, int error);
  79
  80 extern u_char smbus_get_addr(device_t);
  81
  82 #define smbus_quick(bus,slave,how) \
  83         (SMBUS_QUICK(device_get_parent(bus), slave, how))
  84 #define smbus_sendb(bus,slave,byte) \
  85         (SMBUS_SENDB(device_get_parent(bus), slave, byte))
  86 #define smbus_recvb(bus,slave,byte) \
  87         (SMBUS_RECVB(device_get_parent(bus), slave, byte))
  88 #define smbus_writeb(bus,slave,cmd,byte) \
  89         (SMBUS_WRITEB(device_get_parent(bus), slave, cmd, byte))
  90 #define smbus_writew(bus,slave,cmd,word) \
  91         (SMBUS_WRITEW(device_get_parent(bus), slave, cmd, word))
  92 #define smbus_readb(bus,slave,cmd,byte) \
  93         (SMBUS_READB(device_get_parent(bus), slave, cmd, byte))
  94 #define smbus_readw(bus,slave,cmd,word) \
  95         (SMBUS_READW(device_get_parent(bus), slave, cmd, word))
  96 #define smbus_pcall(bus,slave,cmd,sdata,rdata) \
  97         (SMBUS_PCALL(device_get_parent(bus), slave, cmd, sdata, rdata))
  98 #define smbus_bwrite(bus,slave,cmd,count,buf) \
  99         (SMBUS_BWRITE(device_get_parent(bus), slave, cmd, count, buf))
 100 #define smbus_bread(bus,slave,cmd,count,buf) \
 101         (SMBUS_BREAD(device_get_parent(bus), slave, cmd, count, buf))
 102
 103 #define SMBUS_MODVER   1
 104 #define SMBUS_MINVER   1
 105 #define SMBUS_MAXVER   1
 106 #define SMBUS_PREFVER  SMBUS_MODVER
 107
 108 #endif