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Current File : //sys/amd64/compile/hs32/modules/usr/src/sys/modules/usb/urtw/@/amd64/compile/hs32/modules/usr/src/sys/modules/libalias/modules/irc/@/dev/mcd/mcd_isa.c |
/* */ #include <sys/cdefs.h> __FBSDID("$FreeBSD: release/9.1.0/sys/dev/mcd/mcd_isa.c 146734 2005-05-29 04:42:30Z nyan $"); #include <sys/param.h> #include <sys/systm.h> #include <sys/kernel.h> #include <sys/module.h> #include <sys/conf.h> #include <sys/fcntl.h> #include <sys/bio.h> #include <sys/cdio.h> #include <sys/bus.h> #include <sys/lock.h> #include <sys/mutex.h> #include <machine/bus.h> #include <machine/resource.h> #include <sys/rman.h> #include <isa/isavar.h> #include <dev/mcd/mcdreg.h> #include <dev/mcd/mcdvar.h> static int mcd_isa_probe (device_t); static int mcd_isa_attach (device_t); static int mcd_isa_detach (device_t); static int mcd_alloc_resources (device_t); static void mcd_release_resources (device_t); static int mcd_isa_probe (device_t dev) { struct mcd_softc * sc; int error; /* No pnp support */ if (isa_get_vendorid(dev)) return (ENXIO); /* IO port must be configured. */ if (bus_get_resource_start(dev, SYS_RES_IOPORT, 0) == 0) return (ENXIO); sc = device_get_softc(dev); sc->dev = dev; sc->port_rid = 0; sc->port_type = SYS_RES_IOPORT; error = mcd_alloc_resources(dev); if (error) goto fail; error = mcd_probe(sc); if (error) { device_printf(dev, "Probe failed.\n"); goto fail; } device_set_desc(dev, sc->data.name); fail: mcd_release_resources(dev); return (error); } static int mcd_isa_attach (device_t dev) { struct mcd_softc * sc; int error; sc = device_get_softc(dev); error = 0; sc->dev = dev; sc->port_rid = 0; sc->port_type = SYS_RES_IOPORT; error = mcd_alloc_resources(dev); if (error) goto fail; error = mcd_probe(sc); if (error) { device_printf(dev, "Re-Probe failed.\n"); goto fail; } error = mcd_attach(sc); if (error) { device_printf(dev, "Attach failed.\n"); goto fail; } return (0); fail: mcd_release_resources(dev); return (error); } static int mcd_isa_detach (device_t dev) { struct mcd_softc * sc; int error; sc = device_get_softc(dev); error = 0; destroy_dev(sc->mcd_dev_t); mcd_release_resources(dev); return (error); } static int mcd_alloc_resources (device_t dev) { struct mcd_softc * sc; int error; sc = device_get_softc(dev); error = 0; if (sc->port_type) { sc->port = bus_alloc_resource_any(dev, sc->port_type, &sc->port_rid, RF_ACTIVE); if (sc->port == NULL) { device_printf(dev, "Unable to allocate PORT resource.\n"); error = ENOMEM; goto bad; } sc->port_bst = rman_get_bustag(sc->port); sc->port_bsh = rman_get_bushandle(sc->port); } if (sc->irq_type) { sc->irq = bus_alloc_resource_any(dev, sc->irq_type, &sc->irq_rid, RF_ACTIVE); if (sc->irq == NULL) { device_printf(dev, "Unable to allocate IRQ resource.\n"); error = ENOMEM; goto bad; } } if (sc->drq_type) { sc->drq = bus_alloc_resource_any(dev, sc->drq_type, &sc->drq_rid, RF_ACTIVE); if (sc->drq == NULL) { device_printf(dev, "Unable to allocate DRQ resource.\n"); error = ENOMEM; goto bad; } } mtx_init(&sc->mtx, device_get_nameunit(dev), "Interrupt lock", MTX_DEF | MTX_RECURSE); bad: return (error); } static void mcd_release_resources (device_t dev) { struct mcd_softc * sc; sc = device_get_softc(dev); if (sc->irq_ih) bus_teardown_intr(dev, sc->irq, sc->irq_ih); if (sc->port) { bus_release_resource(dev, sc->port_type, sc->port_rid, sc->port); sc->port_bst = 0; sc->port_bsh = 0; } if (sc->irq) bus_release_resource(dev, sc->irq_type, sc->irq_rid, sc->irq); if (sc->drq) bus_release_resource(dev, sc->drq_type, sc->drq_rid, sc->drq); if (mtx_initialized(&sc->mtx) != 0) mtx_destroy(&sc->mtx); return; } static device_method_t mcd_isa_methods[] = { DEVMETHOD(device_probe, mcd_isa_probe), DEVMETHOD(device_attach, mcd_isa_attach), DEVMETHOD(device_detach, mcd_isa_detach), { 0, 0 } }; static driver_t mcd_isa_driver = { "mcd", mcd_isa_methods, sizeof(struct mcd_softc) }; static devclass_t mcd_devclass; DRIVER_MODULE(mcd, isa, mcd_isa_driver, mcd_devclass, NULL, 0);