sys/arch/i386/pci/sis85c503reg.h

   1 /*      $NetBSD$        */
   2
   3 /*
   4  * Copyright (c) 1999, by UCHIYAMA Yasushi
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. The name of the developer may NOT be used to endorse or promote products
  13  *    derived from this software without specific prior written permission.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  25  * SUCH DAMAGE.
  26  */
  27
  28 /*
  29  * Register definitions for the SiS 85c503 PCI-ISA bridge interrupt controller.
  30  */
  31
  32 #define SIS85C503_CFG_PIRQ_REGSTART     0x41    /* PCI configuration space */
  33 #define SIS85C503_CFG_PIRQ_REGEND       0x44
  34
  35 #define SIS85C503_LEGAL_LINK(link) ((link) >= SIS85C503_CFG_PIRQ_REGSTART && \
  36                                     (link) <= SIS85C503_CFG_PIRQ_REGEND)
  37
  38 #define SIS85C503_CFG_PIRQ_REGOFS(regofs) (((regofs) >> 2) << 2)
  39 #define SIS85C503_CFG_PIRQ_SHIFT(regofs)                                \
  40         (((regofs) - SIS85C503_CFG_PIRQ_REGOFS(regofs)) << 3)
  41
  42 #define SIS85C503_CFG_PIRQ_MASK         0xff
  43 #define SIS85C503_CFG_PIRQ_INTR_MASK    0x0f
  44
  45 #define SIS85C503_CFG_PIRQ_REG(reg, regofs)                             \
  46         (((reg) >> SIS85C503_CFG_PIRQ_SHIFT(regofs)) & SIS85C503_CFG_PIRQ_MASK)
  47
  48 #define SIS85C503_CFG_PIRQ_ROUTE_DISABLE 0x80
  49
  50 #define SIS85C503_PIRQ_MASK             0xdef8
  51 #define SIS85C503_LEGAL_IRQ(irq)        ((irq) >= 0 && (irq) <= 15 &&   \
  52                                  ((1 << (irq)) & SIS85C503_PIRQ_MASK) != 0)