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 1.7.14.1 2006/09/22 19:19:16 jhb 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 SMBPRI (PZERO+8)                /* XXX sleep/wakeup queue priority */
  35
  36 #define n(flags) (~(flags) & (flags))
  37
  38 /*
  39  * How tsleep() is called in smb_request_bus().
  40  */
  41 #define SMB_DONTWAIT    0
  42 #define SMB_NOINTR      0
  43 #define SMB_WAIT        0x1
  44 #define SMB_INTR        0x2
  45
  46 /*
  47  * callback index
  48  */
  49 #define SMB_REQUEST_BUS 0x1
  50 #define SMB_RELEASE_BUS 0x2
  51
  52 /*
  53  * SMB bus errors
  54  */
  55 #define SMB_ENOERR      0x0
  56 #define SMB_EBUSERR     0x1
  57 #define SMB_ENOTSUPP    0x2
  58 #define SMB_ENOACK      0x4
  59 #define SMB_ECOLLI      0x8
  60 #define SMB_EABORT      0x10
  61 #define SMB_ETIMEOUT    0x20
  62 #define SMB_EBUSY       0x40
  63 #define SMB_EINVAL      0x100
  64
  65 /*
  66  * How Quick command is executed
  67  */
  68 #define SMB_QWRITE      0x0
  69 #define SMB_QREAD       0x1
  70
  71 /*
  72  * smbus transaction op with pass-thru capabilities
  73  *
  74  * This smbus function is capable of doing a smbus command transaction
  75  * (read or write), and can be flagged to not issue the 'cmd' and/or
  76  * issue or expect a count field as well as flagged for chaining (no STOP),
  77  * which gives it an i2c pass-through capability.
  78  *
  79  * NOSTOP- Caller chaining transactions, do not issue STOP
  80  * NOCMD-  Do not transmit the command field
  81  * NOCNT-  Do not transmit (wr) or expect (rd) the count field
  82  */
  83 #define SMB_TRANS_NOSTOP        0x0001  /* do not send STOP at end */
  84 #define SMB_TRANS_NOCMD         0x0002  /* ignore cmd field (do not tx) */
  85 #define SMB_TRANS_NOCNT         0x0004  /* do not tx or rx count field */
  86 #define SMB_TRANS_7BIT          0x0008  /* change address mode to 7-bit */
  87 #define SMB_TRANS_10BIT         0x0010  /* change address mode to 10-bit */
  88 #define SMB_TRANS_NOREPORT      0x0020  /* do not report errors */
  89
  90 /*
  91  * ivars codes
  92  */
  93
  94 #ifdef _KERNEL
  95
  96 #define SMBUS_IVAR_ADDR 0x1     /* slave address of the device */
  97
  98 int     smbus_request_bus(device_t, device_t, int);
  99 int     smbus_release_bus(device_t, device_t);
 100 int     smbus_error(int error);
 101
 102 void    smbus_intr(device_t, u_char, char low, char high, int error);
 103
 104 u_char  smbus_get_addr(device_t);
 105
 106 extern driver_t smbus_driver;
 107 extern devclass_t smbus_devclass;
 108
 109 #define smbus_quick(bus,slave,how) \
 110         (SMBUS_QUICK(device_get_parent(bus), slave, how))
 111 #define smbus_sendb(bus,slave,byte) \
 112         (SMBUS_SENDB(device_get_parent(bus), slave, byte))
 113 #define smbus_recvb(bus,slave,byte) \
 114         (SMBUS_RECVB(device_get_parent(bus), slave, byte))
 115 #define smbus_writeb(bus,slave,cmd,byte) \
 116         (SMBUS_WRITEB(device_get_parent(bus), slave, cmd, byte))
 117 #define smbus_writew(bus,slave,cmd,word) \
 118         (SMBUS_WRITEW(device_get_parent(bus), slave, cmd, word))
 119 #define smbus_readb(bus,slave,cmd,byte) \
 120         (SMBUS_READB(device_get_parent(bus), slave, cmd, byte))
 121 #define smbus_readw(bus,slave,cmd,word) \
 122         (SMBUS_READW(device_get_parent(bus), slave, cmd, word))
 123 #define smbus_pcall(bus,slave,cmd,sdata,rdata) \
 124         (SMBUS_PCALL(device_get_parent(bus), slave, cmd, sdata, rdata))
 125 #define smbus_bwrite(bus,slave,cmd,count,buf) \
 126         (SMBUS_BWRITE(device_get_parent(bus), slave, cmd, count, buf))
 127 #define smbus_bread(bus,slave,cmd,count,buf) \
 128         (SMBUS_BREAD(device_get_parent(bus), slave, cmd, count, buf))
 129 #define smbus_trans(bus,slave,cmd,op,wbuf,wcount,rbuf,rcount,actualp) \
 130         (SMBUS_TRANS(device_get_parent(bus), slave, cmd, op,          \
 131                      wbuf, wcount, rbuf, rcount, actualp))
 132
 133 #define SMBUS_MODVER    1
 134 #define SMBUS_MINVER    1
 135 #define SMBUS_MAXVER    1
 136 #define SMBUS_PREFVER   SMBUS_MODVER
 137
 138 #endif
 139
 140 #endif