sys/dev/disk/aic/aic_isa.c

   1 /*-
   2  * Copyright (c) 1999 Luoqi Chen.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  *
  26  * $FreeBSD: src/sys/dev/aic/aic_isa.c,v 1.3 2000/01/14 23:42:35 imp Exp $
  27  * $DragonFly: src/sys/dev/disk/aic/aic_isa.c,v 1.8 2008/01/05 07:27:09 pavalos Exp $
  28  */
  29
  30 #include <sys/param.h>
  31 #include <sys/kernel.h>
  32 #include <sys/module.h>
  33 #include <sys/bus.h>
  34 #include <sys/rman.h>
  35
  36 #include <bus/isa/isavar.h>
  37 #include "aic6360reg.h"
  38 #include "aicvar.h"
  39
  40 struct aic_isa_softc {
  41         struct  aic_softc sc_aic;
  42         struct  resource *sc_port;
  43         struct  resource *sc_irq;
  44         struct  resource *sc_drq;
  45         void    *sc_ih;
  46 };
  47
  48 static int aic_isa_alloc_resources (device_t);
  49 static void aic_isa_release_resources (device_t);
  50 static int aic_isa_probe (device_t);
  51 static int aic_isa_attach (device_t);
  52
  53 static u_int aic_isa_ports[] = { 0x340, 0x140 };
  54 #define AIC_ISA_NUMPORTS (sizeof(aic_isa_ports) / sizeof(aic_isa_ports[0]))
  55 #define AIC_ISA_PORTSIZE 0x20
  56
  57 static struct isa_pnp_id aic_ids[] = {
  58         { 0x15309004, "Adaptec AHA-1530P" },
  59         { 0x15209004, "Adaptec AHA-1520P" },
  60         { 0 }
  61 };
  62
  63 static int
  64 aic_isa_alloc_resources(device_t dev)
  65 {
  66         struct aic_isa_softc *sc = device_get_softc(dev);
  67         int rid;
  68
  69         sc->sc_port = sc->sc_irq = sc->sc_drq = 0;
  70
  71         rid = 0;
  72         sc->sc_port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
  73                                         0ul, ~0ul, AIC_ISA_PORTSIZE, RF_ACTIVE);
  74         if (!sc->sc_port) {
  75                 device_printf(dev, "I/O port allocation failed\n");
  76                 return (ENOMEM);
  77         }
  78
  79         if (isa_get_irq(dev) != -1) {
  80                 rid = 0;
  81                 sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
  82                                                     RF_ACTIVE);
  83                 if (!sc->sc_irq) {
  84                         device_printf(dev, "IRQ allocation failed\n");
  85                         aic_isa_release_resources(dev);
  86                         return (ENOMEM);
  87                 }
  88         }
  89
  90         if (isa_get_drq(dev) != -1) {
  91                 rid = 0;
  92                 sc->sc_drq = bus_alloc_resource_any(dev, SYS_RES_DRQ, &rid,
  93                                                     RF_ACTIVE);
  94                 if (!sc->sc_drq) {
  95                         device_printf(dev, "DRQ allocation failed\n");
  96                         aic_isa_release_resources(dev);
  97                         return (ENOMEM);
  98                 }
  99         }
 100
 101         sc->sc_aic.unit = device_get_unit(dev);
 102         sc->sc_aic.tag = rman_get_bustag(sc->sc_port);
 103         sc->sc_aic.bsh = rman_get_bushandle(sc->sc_port);
 104         return (0);
 105 }
 106
 107 static void
 108 aic_isa_release_resources(device_t dev)
 109 {
 110         struct aic_isa_softc *sc = device_get_softc(dev);
 111
 112         if (sc->sc_port)
 113                 bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->sc_port);
 114         if (sc->sc_irq)
 115                 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq);
 116         if (sc->sc_drq)
 117                 bus_release_resource(dev, SYS_RES_DRQ, 0, sc->sc_drq);
 118         sc->sc_port = sc->sc_irq = sc->sc_drq = 0;
 119 }
 120
 121 static int
 122 aic_isa_probe(device_t dev)
 123 {
 124         struct aic_isa_softc *sc = device_get_softc(dev);
 125         struct aic_softc *aic = &sc->sc_aic;
 126         int numports, i;
 127         u_int port, *ports;
 128         u_int8_t porta;
 129
 130         if (ISA_PNP_PROBE(device_get_parent(dev), dev, aic_ids) == ENXIO)
 131                 return (ENXIO);
 132
 133         port = isa_get_port(dev);
 134         if (port != -1) {
 135                 ports = &port;
 136                 numports = 1;
 137         } else {
 138                 ports = aic_isa_ports;
 139                 numports = AIC_ISA_NUMPORTS;
 140         }
 141
 142         for (i = 0; i < numports; i++) {
 143                 if (bus_set_resource(dev, SYS_RES_IOPORT, 0, ports[i],
 144                                      AIC_ISA_PORTSIZE))
 145                         continue;
 146                 if (aic_isa_alloc_resources(dev))
 147                         continue;
 148                 if (!aic_probe(aic)) {
 149                         aic_isa_release_resources(dev);
 150                         break;
 151                 }
 152                 aic_isa_release_resources(dev);
 153         }
 154
 155         if (i == numports)
 156                 return (ENXIO);
 157
 158         porta = aic_inb(aic, PORTA);
 159         if (isa_get_irq(dev) == -1)
 160                 bus_set_resource(dev, SYS_RES_IRQ, 0, PORTA_IRQ(porta), 1);
 161         if ((aic->flags & AIC_DMA_ENABLE) && isa_get_drq(dev) == -1)
 162                 bus_set_resource(dev, SYS_RES_DRQ, 0, PORTA_DRQ(porta), 1);
 163         device_set_desc(dev, "Adaptec 6260/6360 SCSI controller");
 164         return (0);
 165 }
 166
 167 static int
 168 aic_isa_attach(device_t dev)
 169 {
 170         struct aic_isa_softc *sc = device_get_softc(dev);
 171         struct aic_softc *aic = &sc->sc_aic;
 172         int error;
 173
 174         error = aic_isa_alloc_resources(dev);
 175         if (error) {
 176                 device_printf(dev, "resource allocation failed\n");
 177                 return (error);
 178         }
 179
 180         error = aic_attach(aic);
 181         if (error) {
 182                 device_printf(dev, "attach failed\n");
 183                 aic_isa_release_resources(dev);
 184                 return (error);
 185         }
 186
 187         error = bus_setup_intr(dev, sc->sc_irq, 0, aic_intr,
 188                                 aic, &sc->sc_ih, NULL);
 189         if (error) {
 190                 device_printf(dev, "failed to register interrupt handler\n");
 191                 aic_isa_release_resources(dev);
 192                 return (error);
 193         }
 194         return (0);
 195 }
 196
 197 static int
 198 aic_isa_detach(device_t dev)
 199 {
 200         struct aic_isa_softc *sc = device_get_softc(dev);
 201         struct aic_softc *aic = &sc->sc_aic;
 202         int error;
 203
 204         error = aic_detach(aic);
 205         if (error) {
 206                 device_printf(dev, "detach failed\n");
 207                 return (error);
 208         }
 209
 210         error = bus_teardown_intr(dev, sc->sc_irq, sc->sc_ih);
 211         if (error) {
 212                 device_printf(dev, "failed to unregister interrupt handler\n");
 213         }
 214
 215         aic_isa_release_resources(dev);
 216         return (0);
 217 }
 218
 219 static device_method_t aic_isa_methods[] = {
 220         /* Device interface */
 221         DEVMETHOD(device_probe,         aic_isa_probe),
 222         DEVMETHOD(device_attach,        aic_isa_attach),
 223         DEVMETHOD(device_detach,        aic_isa_detach),
 224         { 0, 0 }
 225 };
 226
 227 static driver_t aic_isa_driver = {
 228         "aic",
 229         aic_isa_methods, sizeof(struct aic_isa_softc),
 230 };
 231
 232 extern devclass_t aic_devclass;
 233
 234 MODULE_DEPEND(aic, cam, 1,1,1);
 235 DRIVER_MODULE(aic, isa, aic_isa_driver, aic_devclass, 0, 0);