sys/arch/sgimips/pci/pci_machdep.c

   1 /*      $NetBSD: pci_machdep.c,v 1.19 2006/08/30 23:35:10 rumble Exp $  */
   2
   3 /*
   4  * Copyright (c) 2000 Soren S. Jorvang
   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. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *          This product includes software developed for the
  18  *          NetBSD Project.  See http://www.NetBSD.org/ for
  19  *          information about NetBSD.
  20  * 4. The name of the author may not be used to endorse or promote products
  21  *    derived from this software without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  24  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  25  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  26  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  27  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  28  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  29  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  30  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  31  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  32  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  33  */
  34
  35 #include <sys/cdefs.h>
  36 __KERNEL_RCSID(0, "$NetBSD: pci_machdep.c,v 1.19 2006/08/30 23:35:10 rumble Exp $");
  37
  38 #include "opt_pci.h"
  39 #include "pci.h"
  40
  41 #include <sys/types.h>
  42 #include <sys/param.h>
  43 #include <sys/time.h>
  44 #include <sys/systm.h>
  45 #include <sys/errno.h>
  46 #include <sys/device.h>
  47
  48 #include <uvm/uvm_extern.h>
  49
  50 #define _SGIMIPS_BUS_DMA_PRIVATE
  51 #include <machine/bus.h>
  52 #include <machine/intr.h>
  53 #include <machine/sysconf.h>
  54
  55 #include <dev/pci/pcivar.h>
  56 #include <dev/pci/pcireg.h>
  57 #include <dev/pci/pcidevs.h>
  58 #include <dev/pci/pciconf.h>
  59
  60 struct sgimips_bus_dma_tag pci_bus_dma_tag;
  61
  62 void
  63 pci_attach_hook(struct device *parent, struct device *self, struct pcibus_attach_args *pba)
  64 {
  65         /*
  66          * PCI doesn't have any special needs; just use
  67          * the generic versions of these functions as
  68          * established in sgimips_bus_dma_init().
  69          */
  70         pci_bus_dma_tag = sgimips_default_bus_dma_tag;  /* struct copy */
  71
  72         /* XXX */
  73
  74         return;
  75 }
  76
  77 int
  78 pci_bus_maxdevs(pci_chipset_tag_t pc, int busno)
  79 {
  80
  81         return (*pc->pc_bus_maxdevs)(pc, busno);
  82 }
  83
  84 pcitag_t
  85 pci_make_tag(pci_chipset_tag_t pc, int bus, int device, int function)
  86 {
  87
  88         return (bus << 16) | (device << 11) | (function << 8);
  89 }
  90
  91 void
  92 pci_decompose_tag(pci_chipset_tag_t pc, pcitag_t tag, int *bp, int *dp, int *fp)
  93 {
  94
  95         if (bp != NULL)
  96                 *bp = (tag >> 16) & 0xff;
  97         if (dp != NULL)
  98                 *dp = (tag >> 11) & 0x1f;
  99         if (fp != NULL)
 100                 *fp = (tag >> 8) & 0x07;
 101 }
 102
 103 pcireg_t
 104 pci_conf_read(pci_chipset_tag_t pc, pcitag_t tag, int reg)
 105 {
 106
 107         return (*pc->pc_conf_read)(pc, tag, reg);
 108 }
 109
 110 void
 111 pci_conf_write(pci_chipset_tag_t pc, pcitag_t tag, int reg, pcireg_t data)
 112 {
 113
 114         (*pc->pc_conf_write)(pc, tag, reg, data);
 115 }
 116
 117 int
 118 pci_intr_map(struct pci_attach_args *pa, pci_intr_handle_t *ihp)
 119 {
 120         return (*pa->pa_pc->pc_intr_map)(pa, ihp);
 121 }
 122
 123 const char *
 124 pci_intr_string(pci_chipset_tag_t pc, pci_intr_handle_t ih)
 125 {
 126         return (*pc->pc_intr_string)(pc, ih);
 127 }
 128
 129 const struct evcnt *
 130 pci_intr_evcnt(pci_chipset_tag_t pc, pci_intr_handle_t ih)
 131 {
 132
 133         /* XXX for now, no evcnt parent reported */
 134         return NULL;
 135 }
 136
 137 int
 138 pci_intr_setattr(pci_chipset_tag_t pc, pci_intr_handle_t *ih,
 139                  int attr, uint64_t data)
 140 {
 141
 142         switch (attr) {
 143         case PCI_INTR_MPSAFE:
 144                 return 0;
 145         default:
 146                 return ENODEV;
 147         }
 148 }
 149
 150 void *
 151 pci_intr_establish(pci_chipset_tag_t pc, pci_intr_handle_t ih, int level,
 152         int (*func)(void *), void *arg)
 153 {
 154
 155         return (void *)(*pc->intr_establish)(ih, 0, func, arg);
 156 }
 157
 158 void
 159 pci_intr_disestablish(pci_chipset_tag_t pc, void *cookie)
 160 {
 161
 162         (*pc->intr_disestablish)(cookie);
 163 }
 164
 165 #ifdef PCI_NETBSD_CONFIGURE
 166 int
 167 pci_conf_hook(pci_chipset_tag_t pc, int bus, int device, int function,
 168     pcireg_t id)
 169 {
 170
 171         if (pc->pc_conf_hook)
 172                 return (*pc->pc_conf_hook)(pc, bus, device, function, id);
 173         else
 174                 return (PCI_CONF_DEFAULT);
 175 }
 176
 177 void
 178 pci_conf_interrupt(pci_chipset_tag_t pc, int bus, int dev, int pin, int swiz,
 179     int *iline)
 180 {
 181
 182         return;
 183 }
 184 #endif