FreeBSD/Linux Kernel Cross Reference
sys/dev/smbus/smbconf.h

     /*-
      * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
      *
      * Copyright (c) 1998 Nicolas Souchu
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     * $FreeBSD$
     */
    #ifndef __DEV_SMBUS_SMBCONF_H
    #define __DEV_SMBUS_SMBCONF_H
    
    #include <sys/queue.h>
    
    #define SMBPRI (PZERO+8)                /* XXX sleep/wakeup queue priority */
    
    #define n(flags) (~(flags) & (flags))
    
    /* Order constants for smbus children. */
    #define SMBUS_ORDER_HINTED      20
    #define SMBUS_ORDER_PNP         40
    
    /*
     * How tsleep() is called in smb_request_bus().
     */
    #define SMB_DONTWAIT    0
    #define SMB_NOINTR      0
    #define SMB_WAIT        0x1
    #define SMB_INTR        0x2
    
    /*
     * callback index
     */
    #define SMB_REQUEST_BUS 0x1
    #define SMB_RELEASE_BUS 0x2
    
    /*
     * SMB bus errors
     */
    #define SMB_ENOERR      0x0
    #define SMB_EBUSERR     0x1
    #define SMB_ENOTSUPP    0x2
    #define SMB_ENOACK      0x4
    #define SMB_ECOLLI      0x8
    #define SMB_EABORT      0x10
    #define SMB_ETIMEOUT    0x20
    #define SMB_EBUSY       0x40
    #define SMB_EINVAL      0x100
    
    /*
     * How Quick command is executed
     */
    #define SMB_QWRITE      0x0
    #define SMB_QREAD       0x1
    
    /*
     * ivars codes
     */
    enum smbus_ivars {
        SMBUS_IVAR_ADDR,    /* slave address of the device */
    };
    
    int     smbus_request_bus(device_t, device_t, int);
    int     smbus_release_bus(device_t, device_t);
    device_t smbus_alloc_bus(device_t);
    int     smbus_error(int error);
    
    void    smbus_intr(device_t, u_char, char low, char high, int error);
    
    #define SMBUS_ACCESSOR(var, ivar, type)                                 \
            __BUS_ACCESSOR(smbus, var, SMBUS, ivar, type)
    
    SMBUS_ACCESSOR(addr,            ADDR,           int)
    
    #undef SMBUS_ACCESSOR
    
    extern driver_t smbus_driver;
    
    #define smbus_quick(bus,slave,how) \
           (SMBUS_QUICK(device_get_parent(bus), slave, how))
   #define smbus_sendb(bus,slave,byte) \
           (SMBUS_SENDB(device_get_parent(bus), slave, byte))
   #define smbus_recvb(bus,slave,byte) \
           (SMBUS_RECVB(device_get_parent(bus), slave, byte))
   #define smbus_writeb(bus,slave,cmd,byte) \
           (SMBUS_WRITEB(device_get_parent(bus), slave, cmd, byte))
   #define smbus_writew(bus,slave,cmd,word) \
           (SMBUS_WRITEW(device_get_parent(bus), slave, cmd, word))
   #define smbus_readb(bus,slave,cmd,byte) \
           (SMBUS_READB(device_get_parent(bus), slave, cmd, byte))
   #define smbus_readw(bus,slave,cmd,word) \
           (SMBUS_READW(device_get_parent(bus), slave, cmd, word))
   #define smbus_pcall(bus,slave,cmd,sdata,rdata) \
           (SMBUS_PCALL(device_get_parent(bus), slave, cmd, sdata, rdata))
   #define smbus_bwrite(bus,slave,cmd,count,buf) \
           (SMBUS_BWRITE(device_get_parent(bus), slave, cmd, count, buf))
   #define smbus_bread(bus,slave,cmd,count,buf) \
           (SMBUS_BREAD(device_get_parent(bus), slave, cmd, count, buf))
   #define smbus_trans(bus,slave,cmd,op,wbuf,wcount,rbuf,rcount,actualp) \
           (SMBUS_TRANS(device_get_parent(bus), slave, cmd, op, \
           wbuf, wcount, rbuf, rcount, actualp))
   
   #define SMBUS_MODVER    1
   #define SMBUS_MINVER    1
   #define SMBUS_MAXVER    1
   #define SMBUS_PREFVER   SMBUS_MODVER
   
   #endif  /* __DEV_SMBUS_SMBCONF_H */

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