cyber.c

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    1 /*      $NetBSD: cyber.c,v 1.2 2004/02/04 01:58:44 fredb Exp $  */
    2 
    3 /*-
    4  * Copyright (c) 2004 The NetBSD Foundation, Inc.
    5  * All rights reserved.
    6  *
    7  * This code is derived from software contributed to The NetBSD Foundation
    8  * by Frederick S. Bruckman.
    9  *
   10  * Redistribution and use in source and binary forms, with or without
   11  * modification, are permitted provided that the following conditions
   12  * are met:
   13  * 1. Redistributions of source code must retain the above copyright
   14  *    notice, this list of conditions and the following disclaimer.
   15  * 2. Redistributions in binary form must reproduce the above copyright
   16  *    notice, this list of conditions and the following disclaimer in the
   17  *    documentation and/or other materials provided with the distribution.
   18  * 3. All advertising materials mentioning features or use of this software
   19  *    must display the following acknowledgement:
   20  *        This product includes software developed by the NetBSD
   21  *        Foundation, Inc. and its contributors.
   22  * 4. Neither the name of The NetBSD Foundation nor the names of its
   23  *    contributors may be used to endorse or promote products derived
   24  *    from this software without specific prior written permission.
   25  *
   26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   36  * POSSIBILITY OF SUCH DAMAGE.
   37  */
   38 
   39 /* Store one "Usr" register on an SIIG Cyberserial multiport PCI card. */
   40 
   41 #include <sys/cdefs.h>
   42 __KERNEL_RCSID(0, "$NetBSD: cyber.c,v 1.2 2004/02/04 01:58:44 fredb Exp $");
   43 
   44 #include <sys/param.h>
   45 #include <sys/device.h>
   46 #include <sys/termios.h> /* XXX for tcflag_t in comvar.h */
   47 
   48 #include <machine/bus.h>
   49 
   50 #include <dev/pci/cyberreg.h>
   51 #include <dev/pci/cybervar.h>
   52 
   53 void
   54 write_siig10x_usrreg(pci_chipset_tag_t pc, pcitag_t tag, int usrregno,
   55     int high_speed)
   56 {
   57         pcireg_t curregs, newregs;
   58 
   59         newregs = curregs = pci_conf_read(pc, tag, SIIG10x_USR_BASE);
   60 
   61         if (high_speed)                                 /* Clear bit. */
   62                 switch (usrregno) {
   63                 case 0:
   64                         newregs &= ~SIIG10x_USR0_MASK;
   65                         break;
   66                 case 1:
   67                         newregs &= ~SIIG10x_USR1_MASK;
   68                         break;
   69                 case 2:
   70                         newregs &= ~SIIG10x_USR2_MASK;
   71                         break;
   72                 case 3:
   73                         newregs &= ~SIIG10x_USR3_MASK;
   74                 }
   75         else /* if (!high_speed) */                     /* Set bit. */
   76                 switch (usrregno) {
   77                 case 0:
   78                         newregs |= SIIG10x_USR0_MASK;
   79                         break;
   80                 case 1:
   81                         newregs |= SIIG10x_USR1_MASK;
   82                         break;
   83                 case 2:
   84                         newregs |= SIIG10x_USR2_MASK;
   85                         break;
   86                 case 3:
   87                         newregs |= SIIG10x_USR3_MASK;
   88                 }
   89 
   90         if (newregs != curregs)
   91                 pci_conf_write(pc, tag, SIIG10x_USR_BASE, newregs);
   92 }
   93 
   94 void
   95 write_siig20x_usrreg(pci_chipset_tag_t pc, pcitag_t tag, int usrregno,
   96     int high_speed)
   97 {
   98         pcireg_t curreg, newreg;
   99         int offset;
  100 
  101         switch (usrregno) {
  102                 case 0:
  103                         offset = SIIG20x_USR0;
  104                         break;
  105                 case 1:
  106                         offset = SIIG20x_USR1;
  107                         break;
  108                 default:
  109                         return;
  110         }
  111 
  112         newreg = curreg = pci_conf_read(pc, tag, offset);
  113 
  114         if (high_speed)                                 /* Clear bit. */
  115                 newreg &= ~SIIG20x_USR_MASK;
  116         else /* if (!high_speed) */                     /* Set bit. */
  117                 newreg |= SIIG20x_USR_MASK;
  118 
  119         if (newreg != curreg)
  120                 pci_conf_write(pc, tag, offset, newreg);
  121 }

Cache object: 876441e4c3d34eeaa0c105821448c412

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FreeBSD/Linux Kernel Cross Reference sys/dev/pci/cyber.c

FreeBSD/Linux Kernel Cross Reference
sys/dev/pci/cyber.c