sys/arch/mips/alchemy/aubus.c

   1 /* $NetBSD: aubus.c,v 1.19 2009/03/14 15:36:09 dsl Exp $ */
   2
   3 /*-
   4  * Copyright (c) 2006 Itronix Inc.
   5  * All rights reserved.
   6  *
   7  * Portions written by Garrett D'Amore for Itronix Inc.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  * 3. The name of Itronix Inc. may not be used to endorse
  18  *    or promote products derived from this software without specific
  19  *    prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY ITRONIX INC. ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  23  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  24  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ITRONIX INC. BE LIABLE FOR ANY
  25  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  26  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  27  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  28  * ON ANY THEORY OF LIABILITY, WHETHER IN
  29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  31  * POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 /*
  35  * Copyright 2001 Wasabi Systems, Inc.
  36  * All rights reserved.
  37  *
  38  * Written by Simon Burge for Wasabi Systems, Inc.
  39  *
  40  * Redistribution and use in source and binary forms, with or without
  41  * modification, are permitted provided that the following conditions
  42  * are met:
  43  * 1. Redistributions of source code must retain the above copyright
  44  *    notice, this list of conditions and the following disclaimer.
  45  * 2. Redistributions in binary form must reproduce the above copyright
  46  *    notice, this list of conditions and the following disclaimer in the
  47  *    documentation and/or other materials provided with the distribution.
  48  * 3. All advertising materials mentioning features or use of this software
  49  *    must display the following acknowledgement:
  50  *      This product includes software developed for the NetBSD Project by
  51  *      Wasabi Systems, Inc.
  52  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
  53  *    or promote products derived from this software without specific prior
  54  *    written permission.
  55  *
  56  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
  57  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  58  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  59  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
  60  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  61  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  62  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  63  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  64  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  65  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  66  * POSSIBILITY OF SUCH DAMAGE.
  67  */
  68
  69 /*
  70  * Copyright (c) 1996 Christopher G. Demetriou.  All rights reserved.
  71  *
  72  * Redistribution and use in source and binary forms, with or without
  73  * modification, are permitted provided that the following conditions
  74  * are met:
  75  * 1. Redistributions of source code must retain the above copyright
  76  *    notice, this list of conditions and the following disclaimer.
  77  * 2. Redistributions in binary form must reproduce the above copyright
  78  *    notice, this list of conditions and the following disclaimer in the
  79  *    documentation and/or other materials provided with the distribution.
  80  * 3. All advertising materials mentioning features or use of this software
  81  *    must display the following acknowledgement:
  82  *      This product includes software developed by Christopher G. Demetriou
  83  *      for the NetBSD Project.
  84  * 4. The name of the author may not be used to endorse or promote products
  85  *    derived from this software without specific prior written permission
  86  *
  87  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  88  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  89  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  90  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  91  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  92  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  93  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  94  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  95  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  96  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  97  */
  98
  99 #include <sys/cdefs.h>
 100 __KERNEL_RCSID(0, "$NetBSD: aubus.c,v 1.19 2009/03/14 15:36:09 dsl Exp $");
 101
 102 #include "locators.h"
 103
 104 #include <sys/param.h>
 105 #include <sys/systm.h>
 106 #include <sys/device.h>
 107 #include <sys/extent.h>
 108 #include <sys/malloc.h>
 109
 110 #define _MIPS_BUS_DMA_PRIVATE
 111 #include <machine/bus.h>
 112 #include <machine/locore.h>
 113 #include <mips/alchemy/include/aureg.h>
 114 #include <mips/alchemy/include/auvar.h>
 115 #include <mips/alchemy/include/aubusvar.h>
 116
 117 static int      aubus_match(struct device *, struct cfdata *, void *);
 118 static void     aubus_attach(struct device *, struct device *, void *);
 119 static int      aubus_print(void *, const char *);
 120 static void  aubus_alloc_dma_tag(struct device *, bus_dma_tag_t);
 121
 122 CFATTACH_DECL(aubus, sizeof(struct device),
 123     aubus_match, aubus_attach, NULL, NULL);
 124
 125 bus_space_tag_t aubus_st;               /* XXX */
 126 struct mips_bus_dma_tag  aubus_mdt;
 127
 128 /*
 129  * Probe for the aubus; always succeeds.
 130  */
 131 static int
 132 aubus_match(struct device *parent, struct cfdata *match, void *aux)
 133 {
 134
 135         return 1;
 136 }
 137
 138 /*
 139  * Attach the aubus.
 140  */
 141 static void
 142 aubus_attach(struct device *parent, struct device *self, void *aux)
 143 {
 144         struct aubus_attach_args aa;
 145         struct device *sc = (struct device *)self;
 146         struct au_chipdep *chip;
 147         const struct au_dev *ad;
 148         int locs[AUBUSCF_NLOCS];
 149
 150         printf("\n");
 151
 152         chip = au_chipdep();
 153         KASSERT(chip != NULL);
 154
 155         for (ad = chip->devices; ad->name != NULL; ad++) {
 156                 aa.aa_name = ad->name;
 157                 aa.aa_st = aubus_st;
 158                 aa.aa_dt = &aubus_mdt;
 159                 aubus_alloc_dma_tag(sc, aa.aa_dt);
 160                 aa.aa_addrs[0] = ad->addr[0];
 161                 aa.aa_addrs[1] = ad->addr[1];
 162                 aa.aa_addrs[2] = ad->addr[2];
 163                 aa.aa_irq[0] = ad->irq[0];
 164                 aa.aa_irq[1] = ad->irq[1];
 165
 166                 locs[AUBUSCF_ADDR] = ad->addr[0];
 167
 168                 (void) config_found_sm_loc(self, "aubus", locs, &aa,
 169                                            aubus_print, config_stdsubmatch);
 170         }
 171 }
 172
 173 static int
 174 aubus_print(void *aux, const char *pnp)
 175 {
 176         struct aubus_attach_args *aa = aux;
 177
 178         if (pnp)
 179                 aprint_normal("%s at %s", aa->aa_name, pnp);
 180
 181         if (aa->aa_addr != AUBUSCF_ADDR_DEFAULT)
 182                 aprint_normal(" addr 0x%" PRIxBUSADDR, aa->aa_addr);
 183         if (aa->aa_irq[0] >= 0)
 184                 aprint_normal(" irq %d", aa->aa_irq[0]);
 185         if (aa->aa_irq[1] >= 0)
 186                 aprint_normal(",%d", aa->aa_irq[1]);
 187         return (UNCONF);
 188 }
 189
 190 void
 191 aubus_alloc_dma_tag(struct device *sc, bus_dma_tag_t pdt)
 192 {
 193         bus_dma_tag_t   t;
 194
 195         t = pdt;
 196         t->_cookie = sc;
 197         t->_wbase = 0;  /* XXX */
 198         t->_physbase = 0;       /* XXX */
 199         t->_wsize = MIPS_KSEG1_START - MIPS_KSEG0_START;
 200         t->_dmamap_create = _bus_dmamap_create;
 201         t->_dmamap_destroy = _bus_dmamap_destroy;
 202         t->_dmamap_load = _bus_dmamap_load;
 203         t->_dmamap_load_mbuf = _bus_dmamap_load_mbuf;
 204         t->_dmamap_load_uio = _bus_dmamap_load_uio;
 205         t->_dmamap_load_raw = _bus_dmamap_load_raw;
 206         t->_dmamap_unload = _bus_dmamap_unload;
 207         t->_dmamap_sync = _bus_dmamap_sync;
 208         t->_dmamem_alloc = _bus_dmamem_alloc;
 209         t->_dmamem_free = _bus_dmamem_free;
 210         t->_dmamem_map = _bus_dmamem_map;
 211         t->_dmamem_unmap = _bus_dmamem_unmap;
 212         t->_dmamem_mmap = _bus_dmamem_mmap;
 213 }