aic_cbus.c

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    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 
   27 #include <sys/cdefs.h>
   28 __FBSDID("$FreeBSD: releng/10.3/sys/dev/aic/aic_cbus.c 241591 2012-10-15 16:09:59Z jhb $");
   29 
   30 #include <sys/param.h>
   31 #include <sys/callout.h>
   32 #include <sys/kernel.h>
   33 #include <sys/lock.h>
   34 #include <sys/module.h>
   35 #include <sys/mutex.h>
   36 #include <sys/bus.h>
   37 
   38 #include <machine/bus.h>
   39 #include <machine/resource.h>
   40 #include <sys/rman.h>
   41  
   42 #include <isa/isavar.h>
   43 #include <dev/aic/aic6360reg.h>
   44 #include <dev/aic/aicvar.h>
   45   
   46 struct aic_isa_softc {
   47         struct  aic_softc sc_aic;
   48         struct  resource *sc_port;
   49         struct  resource *sc_irq;
   50         struct  resource *sc_drq;
   51         void    *sc_ih;
   52 };
   53 
   54 static int aic_isa_alloc_resources(device_t);
   55 static void aic_isa_release_resources(device_t);
   56 static int aic_isa_probe(device_t);
   57 static int aic_isa_attach(device_t);
   58 
   59 static u_int aic_isa_ports[] = { 0x1840 };
   60 #define AIC_ISA_NUMPORTS (sizeof(aic_isa_ports) / sizeof(aic_isa_ports[0]))
   61 #define AIC_ISA_PORTSIZE 0x20
   62 
   63 #define AIC98_GENERIC           0x00
   64 #define AIC98_NEC100            0x01
   65 #define AIC_TYPE98(x)           (((x) >> 16) & 0x01)
   66 
   67 static bus_addr_t aicport_generic[AIC_ISA_PORTSIZE] = {
   68         0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
   69         0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
   70         0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
   71         0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
   72 };
   73 static bus_addr_t aicport_100[AIC_ISA_PORTSIZE] = {
   74         0x00, 0x02, 0x04, 0x06, 0x08, 0x0a, 0x0c, 0x0e,
   75         0x10, 0x12, 0x14, 0x16, 0x18, 0x1a, 0x1c, 0x1e,
   76         0x20, 0x22, 0x24, 0x26, 0x28, 0x2a, 0x2c, 0x2e,
   77         0x30, 0x32, 0x34, 0x36, 0x38, 0x3a, 0x3c, 0x3e,
   78 };
   79 
   80 static struct isa_pnp_id aic_ids[] = {
   81         { 0xa180a3b8, "NEC PC9801-100" },
   82         { 0 }
   83 };
   84 
   85 static int
   86 aic_isa_alloc_resources(device_t dev)
   87 {
   88         struct aic_isa_softc *sc = device_get_softc(dev);
   89         int rid;
   90         bus_addr_t *bs_iat;
   91 
   92         if ((isa_get_logicalid(dev) == 0xa180a3b8) ||
   93             (AIC_TYPE98(device_get_flags(dev)) == AIC98_NEC100))
   94                 bs_iat = aicport_100;
   95         else
   96                 bs_iat = aicport_generic;
   97 
   98         sc->sc_port = sc->sc_irq = sc->sc_drq = NULL;
   99 
  100         rid = 0;
  101         sc->sc_port = isa_alloc_resourcev(dev, SYS_RES_IOPORT, &rid,
  102                                           bs_iat, AIC_ISA_PORTSIZE, RF_ACTIVE);
  103         if (!sc->sc_port) {
  104                 device_printf(dev, "I/O port allocation failed\n");
  105                 return (ENOMEM);
  106         }
  107         isa_load_resourcev(sc->sc_port, bs_iat, AIC_ISA_PORTSIZE);
  108         mtx_init(&sc->sc_aic.lock, "aic", NULL, MTX_DEF);
  109 
  110         if (isa_get_irq(dev) != -1) {
  111                 rid = 0;
  112                 sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
  113                                                     RF_ACTIVE);
  114                 if (!sc->sc_irq) {
  115                         device_printf(dev, "IRQ allocation failed\n");
  116                         aic_isa_release_resources(dev);
  117                         return (ENOMEM);
  118                 }
  119         }
  120 
  121         if (isa_get_drq(dev) != -1) {
  122                 rid = 0;
  123                 sc->sc_drq = bus_alloc_resource_any(dev, SYS_RES_DRQ, &rid,
  124                                                     RF_ACTIVE);
  125                 if (!sc->sc_drq) {
  126                         device_printf(dev, "DRQ allocation failed\n");
  127                         aic_isa_release_resources(dev);
  128                         return (ENOMEM);
  129                 }
  130         }
  131 
  132         sc->sc_aic.dev = dev;
  133         sc->sc_aic.res = sc->sc_port;
  134         return (0);
  135 }
  136 
  137 static void
  138 aic_isa_release_resources(device_t dev)
  139 {
  140         struct aic_isa_softc *sc = device_get_softc(dev);
  141 
  142         if (sc->sc_port)
  143                 bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->sc_port);
  144         if (sc->sc_irq)
  145                 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq);
  146         if (sc->sc_drq)
  147                 bus_release_resource(dev, SYS_RES_DRQ, 0, sc->sc_drq);
  148         sc->sc_port = sc->sc_irq = sc->sc_drq = NULL;
  149         mtx_destroy(&sc->sc_aic.lock);
  150 }
  151 
  152 static int
  153 aic_isa_probe(device_t dev)
  154 {
  155         struct aic_isa_softc *sc = device_get_softc(dev);
  156         struct aic_softc *aic = &sc->sc_aic;
  157         int numports, i;
  158         u_int port, *ports;
  159         u_int8_t porta;
  160 
  161         if (ISA_PNP_PROBE(device_get_parent(dev), dev, aic_ids) == ENXIO)
  162                 return (ENXIO);
  163 
  164         port = isa_get_port(dev);
  165         if (port != -1) {
  166                 ports = &port;
  167                 numports = 1;
  168         } else {
  169                 ports = aic_isa_ports;
  170                 numports = AIC_ISA_NUMPORTS;
  171         }
  172 
  173         for (i = 0; i < numports; i++) {
  174                 if (bus_set_resource(dev, SYS_RES_IOPORT, 0, ports[i], 1))
  175                         continue;
  176                 if (aic_isa_alloc_resources(dev))
  177                         continue;
  178                 if (aic_probe(aic) == 0)
  179                         break;
  180                 aic_isa_release_resources(dev);
  181         }
  182 
  183         if (i == numports)
  184                 return (ENXIO);
  185 
  186         porta = aic_inb(aic, PORTA);
  187         aic_isa_release_resources(dev);
  188         if (isa_get_irq(dev) == -1)
  189                 bus_set_resource(dev, SYS_RES_IRQ, 0, PORTA_IRQ(porta), 1);
  190         if ((aic->flags & AIC_DMA_ENABLE) && isa_get_drq(dev) == -1)
  191                 bus_set_resource(dev, SYS_RES_DRQ, 0, PORTA_DRQ(porta), 1);
  192         device_set_desc(dev, "Adaptec 6260/6360 SCSI controller");
  193         return (0);
  194 }
  195 
  196 static int
  197 aic_isa_attach(device_t dev)
  198 {
  199         struct aic_isa_softc *sc = device_get_softc(dev);
  200         struct aic_softc *aic = &sc->sc_aic;
  201         int error;
  202 
  203         error = aic_isa_alloc_resources(dev);
  204         if (error) {
  205                 device_printf(dev, "resource allocation failed\n");
  206                 return (error);
  207         }
  208 
  209         error = aic_attach(aic);
  210         if (error) {
  211                 device_printf(dev, "attach failed\n");
  212                 aic_isa_release_resources(dev);
  213                 return (error);
  214         }
  215 
  216         error = bus_setup_intr(dev, sc->sc_irq, INTR_TYPE_CAM | INTR_ENTROPY |
  217             INTR_MPSAFE, NULL, aic_intr, aic, &sc->sc_ih);
  218         if (error) {
  219                 device_printf(dev, "failed to register interrupt handler\n");
  220                 aic_isa_release_resources(dev);
  221                 return (error);
  222         }
  223         return (0);
  224 }
  225 
  226 static int
  227 aic_isa_detach(device_t dev)
  228 {
  229         struct aic_isa_softc *sc = device_get_softc(dev);
  230         struct aic_softc *aic = &sc->sc_aic;
  231         int error;
  232 
  233         error = aic_detach(aic);
  234         if (error) {
  235                 device_printf(dev, "detach failed\n");
  236                 return (error);
  237         }
  238 
  239         error = bus_teardown_intr(dev, sc->sc_irq, sc->sc_ih);
  240         if (error) {
  241                 device_printf(dev, "failed to unregister interrupt handler\n");
  242         }
  243 
  244         aic_isa_release_resources(dev);
  245         return (0);
  246 }
  247 
  248 static device_method_t aic_isa_methods[] = {
  249         /* Device interface */
  250         DEVMETHOD(device_probe,         aic_isa_probe),
  251         DEVMETHOD(device_attach,        aic_isa_attach),
  252         DEVMETHOD(device_detach,        aic_isa_detach),
  253         { 0, 0 }
  254 };
  255 
  256 static driver_t aic_isa_driver = {
  257         "aic",
  258         aic_isa_methods, sizeof(struct aic_isa_softc),
  259 };
  260 
  261 extern devclass_t aic_devclass;
  262 
  263 MODULE_DEPEND(aic, cam, 1,1,1);
  264 DRIVER_MODULE(aic, isa, aic_isa_driver, aic_devclass, 0, 0);

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FreeBSD/Linux Kernel Cross Reference sys/dev/aic/aic_cbus.c

FreeBSD/Linux Kernel Cross Reference
sys/dev/aic/aic_cbus.c