sys/arch/prep/eisa/eisa_machdep.c

   1 /*      $NetBSD: eisa_machdep.c,v 1.1 2006/02/23 19:44:02 garbled Exp $ */
   2
   3 /*-
   4  * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
   9  * NASA Ames Research Center.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions and the following disclaimer.
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in the
  18  *    documentation and/or other materials provided with the distribution.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  23  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  30  * POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 /*
  34  * Copyright (c) 1996 Christopher G. Demetriou.  All rights reserved.
  35  *
  36  * Redistribution and use in source and binary forms, with or without
  37  * modification, are permitted provided that the following conditions
  38  * are met:
  39  * 1. Redistributions of source code must retain the above copyright
  40  *    notice, this list of conditions and the following disclaimer.
  41  * 2. Redistributions in binary form must reproduce the above copyright
  42  *    notice, this list of conditions and the following disclaimer in the
  43  *    documentation and/or other materials provided with the distribution.
  44  * 3. All advertising materials mentioning features or use of this software
  45  *    must display the following acknowledgement:
  46  *      This product includes software developed by Christopher G. Demetriou
  47  *      for the NetBSD Project.
  48  * 4. The name of the author may not be used to endorse or promote products
  49  *    derived from this software without specific prior written permission
  50  *
  51  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  52  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  53  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  54  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  55  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  56  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  57  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  58  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  59  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  60  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  61  */
  62
  63 /*
  64  * Machine-specific functions for EISA autoconfiguration.
  65  */
  66
  67 #include <sys/cdefs.h>
  68 __KERNEL_RCSID(0, "$NetBSD: eisa_machdep.c,v 1.1 2006/02/23 19:44:02 garbled Exp $");
  69
  70 #include <sys/types.h>
  71 #include <sys/param.h>
  72 #include <sys/time.h>
  73 #include <sys/systm.h>
  74 #include <sys/errno.h>
  75 #include <sys/device.h>
  76 #include <sys/extent.h>
  77
  78 #define _POWERPC_BUS_DMA_PRIVATE
  79 #include <machine/bus.h>
  80 #include <machine/pio.h>
  81 #include <machine/intr.h>
  82
  83 #include <dev/isa/isareg.h>
  84 #include <dev/isa/isavar.h>
  85 #include <dev/eisa/eisavar.h>
  86
  87 /*
  88  * EISA doesn't have any special needs; just use the generic versions
  89  * of these funcions.
  90  */
  91 struct powerpc_bus_dma_tag eisa_bus_dma_tag = {
  92         0,                      /* _bounce_thresh */
  93         _bus_dmamap_create,
  94         _bus_dmamap_destroy,
  95         _bus_dmamap_load,
  96         _bus_dmamap_load_mbuf,
  97         _bus_dmamap_load_uio,
  98         _bus_dmamap_load_raw,
  99         _bus_dmamap_unload,
 100         NULL,                   /* _dmamap_sync */
 101         _bus_dmamem_alloc,
 102         _bus_dmamem_free,
 103         _bus_dmamem_map,
 104         _bus_dmamem_unmap,
 105         _bus_dmamem_mmap,
 106 };
 107
 108 void
 109 eisa_attach_hook(struct device *parent, struct device *self,
 110     struct eisabus_attach_args *eba)
 111 {
 112         /* Nothing to do. */
 113 }
 114
 115 int
 116 eisa_maxslots(eisa_chipset_tag_t ec)
 117 {
 118
 119         /*
 120          * Always try 16 slots.
 121          */
 122         return (16);
 123 }
 124
 125 int
 126 eisa_intr_map(eisa_chipset_tag_t ec, u_int irq, eisa_intr_handle_t *ihp)
 127 {
 128         if (irq >= I8259_INTR_NUM) {
 129                 printf("eisa_intr_map: bad IRQ %d\n", irq);
 130                 *ihp = -1;
 131                 return 1;
 132         }
 133         if (irq == 2) {
 134                 printf("eisa_intr_map: changed IRQ 2 to IRQ 9\n");
 135                 irq = 9;
 136         }
 137
 138         *ihp = irq;
 139         return 0;
 140 }
 141
 142 const char *
 143 eisa_intr_string(eisa_chipset_tag_t ec, eisa_intr_handle_t ih)
 144 {
 145         static char irqstr[8];          /* 4 + 2 + NULL + sanity */
 146
 147         if (ih == 0 || (ih & 0xff) >= I8259_INTR_NUM || ih == 2)
 148                 panic("eisa_intr_string: bogus handle 0x%x", ih);
 149
 150         snprintf(irqstr, sizeof(irqstr), "irq %d", ih);
 151         return (irqstr);
 152
 153 }
 154
 155 const struct evcnt *
 156 eisa_intr_evcnt(eisa_chipset_tag_t ec, eisa_intr_handle_t ih)
 157 {
 158
 159         /* XXX for now, no evcnt parent reported */
 160         return NULL;
 161 }
 162
 163 void *
 164 eisa_intr_establish(eisa_chipset_tag_t ec, eisa_intr_handle_t ih,
 165     int type, int level, int (*func)(void *), void *arg)
 166 {
 167         int irq;
 168
 169         irq = ih;
 170         return (void *)intr_establish(irq, type, level, func, arg);
 171 }
 172
 173 void
 174 eisa_intr_disestablish(eisa_chipset_tag_t ec, void *cookie)
 175 {
 176
 177         intr_disestablish(cookie);
 178 }
 179
 180 int
 181 eisa_conf_read_mem(eisa_chipset_tag_t ec, int slot, int func, int entry,
 182     struct eisa_cfg_mem *ecm)
 183 {
 184
 185         /* XXX XXX XXX */
 186         return (ENOENT);
 187 }
 188
 189 int
 190 eisa_conf_read_irq(eisa_chipset_tag_t ec, int slot, int func, int entry,
 191     struct eisa_cfg_irq *eci)
 192 {
 193
 194         /* XXX XXX XXX */
 195         return (ENOENT);
 196 }
 197
 198 int
 199 eisa_conf_read_dma(eisa_chipset_tag_t ec, int slot, int func, int entry,
 200     struct eisa_cfg_dma *ecd)
 201 {
 202
 203         /* XXX XXX XXX */
 204         return (ENOENT);
 205 }
 206
 207 int
 208 eisa_conf_read_io(eisa_chipset_tag_t ec, int slot, int func, int entry,
 209     struct eisa_cfg_io *ecio)
 210 {
 211
 212         /* XXX XXX XXX */
 213         return (ENOENT);
 214 }