C++ rman_release_resource函数代码示例

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本文整理汇总了C++中rman_release_resource函数的典型用法代码示例。如果您正苦于以下问题：C++ rman_release_resource函数的具体用法？C++ rman_release_resource怎么用？C++ rman_release_resource使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。

在下文中一共展示了rman_release_resource函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: obio_release_resource

static int
obio_release_resource(device_t dev, device_t child, int type,
    int rid, struct resource *r)
{
	struct resource_list *rl;
	struct resource_list_entry *rle;

	rl = obio_get_resource_list(dev, child);
	if (rl == NULL)
		return (EINVAL);
	rle = resource_list_find(rl, type, rid);
	if (rle == NULL)
		return (EINVAL);
	rman_release_resource(r);
	rle->res = NULL;

	return (0);
}

开发者ID:2asoft，项目名称:freebsd，代码行数:18，代码来源:obio.c

示例2: chipc_release_resource

static int
chipc_release_resource(device_t dev, device_t child, int type, int rid,
    struct resource *r)
{
	struct chipc_softc		*sc;
	struct chipc_region		*cr;
	struct rman			*rm;
	struct resource_list_entry	*rle;
	int			 	 error;

	sc = device_get_softc(dev);

	/* Handled by parent bus? */
	rm = chipc_get_rman(sc, type);
	if (rm == NULL || !rman_is_region_manager(r, rm)) {
		return (bus_generic_rl_release_resource(dev, child, type, rid,
		    r));
	}

	/* Locate the mapping region */
	cr = chipc_find_region(sc, rman_get_start(r), rman_get_end(r));
	if (cr == NULL)
		return (EINVAL);

	/* Deactivate resources */
	if (rman_get_flags(r) & RF_ACTIVE) {
		error = BUS_DEACTIVATE_RESOURCE(dev, child, type, rid, r);
		if (error)
			return (error);
	}

	if ((error = rman_release_resource(r)))
		return (error);

	/* Drop allocation reference */
	chipc_release_region(sc, cr, RF_ALLOCATED);

	/* Clear reference from the resource list entry if exists */
	rle = resource_list_find(BUS_GET_RESOURCE_LIST(dev, child), type, rid);
	if (rle != NULL)
		rle->res = NULL;

	return (0);
}

开发者ID:wulf7，项目名称:freebsd，代码行数:44，代码来源:chipc.c

示例3: obio_alloc_resource

static struct resource *
obio_alloc_resource(device_t bus, device_t child, int type, int *rid,
    u_long start, u_long end, u_long count, u_int flags)
{
	struct resource *rv;
	struct rman *rm;
	bus_space_handle_t bh = 0;
	struct obio_softc *sc = device_get_softc(bus);

	switch (type) {
	case SYS_RES_IRQ:
		rm = &sc->oba_irq_rman;
		break;
	case SYS_RES_MEMORY:
		return (NULL);
	case SYS_RES_IOPORT:
		rm = &sc->oba_rman;
		bh = sc->oba_addr;
		start = bh;
		break;
	default:
		return (NULL);
	}


	rv = rman_reserve_resource(rm, start, end, count, flags, child);
	if (rv == NULL) 
		return (NULL);
	if (type == SYS_RES_IRQ)
		return (rv);
	rman_set_rid(rv, *rid);
	rman_set_bustag(rv, mips_bus_space_generic);
	rman_set_bushandle(rv, bh);
	
	if (0) {
		if (bus_activate_resource(child, type, *rid, rv)) {
			rman_release_resource(rv);
			return (NULL);
		}
	}
	return (rv);

}

开发者ID:dcui，项目名称:FreeBSD-9.3_kernel，代码行数:43，代码来源:obio.c

示例4: ofwbus_release_resource

static int
ofwbus_release_resource(device_t bus, device_t child, int type,
    int rid, struct resource *r)
{
	struct resource_list_entry *rle;
	int error;

	/* Clean resource list entry */
	rle = resource_list_find(BUS_GET_RESOURCE_LIST(bus, child), type, rid);
	if (rle != NULL)
		rle->res = NULL;

	if ((rman_get_flags(r) & RF_ACTIVE) != 0) {
		error = bus_deactivate_resource(child, type, rid, r);
		if (error)
			return (error);
	}
	return (rman_release_resource(r));
}

开发者ID:embedclub，项目名称:freebsd，代码行数:19，代码来源:ofwbus.c

示例5: cbb_pci_release_resource

static int
cbb_pci_release_resource(device_t bus, device_t child, int type, int rid,
    struct resource *r)
{
	struct cbb_softc *sc;
	int error;

	sc = device_get_softc(bus);
	if (type == PCI_RES_BUS) {
		if (!rman_is_region_manager(r, &sc->bus.rman))
			return (EINVAL);
		if (rman_get_flags(r) & RF_ACTIVE) {
			error = bus_deactivate_resource(child, type, rid, r);
			if (error)
				return (error);
		}
		return (rman_release_resource(r));
	}
	return (cbb_release_resource(bus, child, type, rid, r));
}

开发者ID:embedclub，项目名称:freebsd，代码行数:20，代码来源:pccbb_pci.c

示例6: thunder_pem_release_resource

static int
thunder_pem_release_resource(device_t dev, device_t child, int type, int rid,
    struct resource *res)
{
	device_t parent_dev;
#if defined(NEW_PCIB) && defined(PCI_RES_BUS)
	struct thunder_pem_softc *sc = device_get_softc(dev);

	if (type == PCI_RES_BUS)
		return (pci_domain_release_bus(sc->id, child, rid, res));
#endif
	/* Find parent device. On ThunderX we know an exact path. */
	parent_dev = device_get_parent(device_get_parent(dev));

	if ((type != SYS_RES_MEMORY) && (type != SYS_RES_IOPORT))
		return (BUS_RELEASE_RESOURCE(parent_dev, child,
		    type, rid, res));

	return (rman_release_resource(res));
}

开发者ID:tomtor，项目名称:freebsd，代码行数:20，代码来源:thunder_pcie_pem.c

示例7: gpiobus_alloc_resource

static struct resource *
gpiobus_alloc_resource(device_t bus, device_t child, int type, int *rid,
    u_long start, u_long end, u_long count, u_int flags)
{
	struct gpiobus_softc *sc;
	struct resource *rv;
	struct resource_list *rl;
	struct resource_list_entry *rle;
	int isdefault;

	if (type != SYS_RES_IRQ)
		return (NULL);
	isdefault = (start == 0UL && end == ~0UL && count == 1);
	rle = NULL;
	if (isdefault) {
		rl = BUS_GET_RESOURCE_LIST(bus, child);
		if (rl == NULL)
			return (NULL);
		rle = resource_list_find(rl, type, *rid);
		if (rle == NULL)
			return (NULL);
		if (rle->res != NULL)
			panic("%s: resource entry is busy", __func__);
		start = rle->start;
		count = rle->count;
		end = rle->end;
	}
	sc = device_get_softc(bus);
	rv = rman_reserve_resource(&sc->sc_intr_rman, start, end, count, flags,
	    child);
	if (rv == NULL)
		return (NULL);
	rman_set_rid(rv, *rid);
	if ((flags & RF_ACTIVE) != 0 &&
	    bus_activate_resource(child, type, *rid, rv) != 0) {
		rman_release_resource(rv);
		return (NULL);
	}

	return (rv);
}

开发者ID:fengsi，项目名称:freebsd，代码行数:41，代码来源:gpiobus.c

示例8: nexus_alloc_resource

/*
 * Allocate resources at the behalf of a child. This only handles interrupts,
 * since i/o resources are usually set up by the firmware, and thus need not
 * be handled here.
 */
static struct resource *
nexus_alloc_resource(device_t bus, device_t child, int type, int *rid,
                     u_long start, u_long end, u_long count, u_int flags)
{
    struct	nexus_softc *sc = device_get_softc(bus);
    struct	resource *rv;
    struct	rman *rm;
    int needactivate = flags & RF_ACTIVE;

    flags &= ~RF_ACTIVE;

    switch (type) {
    case SYS_RES_IRQ:
        rm = &sc->sc_intr_rman;
        break;
    case SYS_RES_MEMORY:
        rm = &sc->sc_mem_rman;
        break;
    default:
        return (NULL);
    }

    rv = rman_reserve_resource(rm, start, end, count, flags, child);
    if (rv == NULL)
        return (NULL);
    if (type == SYS_RES_MEMORY) {
        rman_set_bustag(rv, &nexus_bustag);
        rman_set_bushandle(rv, rman_get_start(rv));
    }

    if (needactivate) {
        if (bus_activate_resource(child, type, *rid, rv)) {
            rman_release_resource(rv);
            return (NULL);
        }
    }

    return (rv);
}

开发者ID:MarginC，项目名称:kame，代码行数:44，代码来源:nexus.c

示例9: pci_host_generic_core_release_resource

int
pci_host_generic_core_release_resource(device_t dev, device_t child, int type,
    int rid, struct resource *res)
{
	struct generic_pcie_core_softc *sc;
	struct rman *rm;

	sc = device_get_softc(dev);

#if defined(NEW_PCIB) && defined(PCI_RES_BUS)
	if (type == PCI_RES_BUS) {
		return (pci_domain_release_bus(sc->ecam, child, rid, res));
	}
#endif

	rm = generic_pcie_rman(sc, type);
	if (rm != NULL) {
		KASSERT(rman_is_region_manager(res, rm), ("rman mismatch"));
		rman_release_resource(res);
	}

	return (bus_generic_release_resource(dev, child, type, rid, res));
}

开发者ID:FreeBSDFoundation，项目名称:freebsd，代码行数:23，代码来源:pci_host_generic.c

示例10: apb_alloc_resource

static struct resource *
apb_alloc_resource(device_t bus, device_t child, int type, int *rid,
    rman_res_t start, rman_res_t end, rman_res_t count, u_int flags)
{
	struct apb_softc		*sc = device_get_softc(bus);
	struct apb_ivar			*ivar = device_get_ivars(child);
	struct resource			*rv;
	struct resource_list_entry	*rle;
	struct rman			*rm;
	int				 isdefault, needactivate, passthrough;

	isdefault = (RMAN_IS_DEFAULT_RANGE(start, end));
	needactivate = flags & RF_ACTIVE;
	/*
	 * Pass memory requests to nexus device
	 */
	passthrough = (device_get_parent(child) != bus);
	rle = NULL;

	dprintf("%s: entry (%p, %p, %d, %d, %p, %p, %jd, %d)\n",
	    __func__, bus, child, type, *rid, (void *)(intptr_t)start,
	    (void *)(intptr_t)end, count, flags);

	if (passthrough)
		return (BUS_ALLOC_RESOURCE(device_get_parent(bus), child, type,
		    rid, start, end, count, flags));

	/*
	 * If this is an allocation of the "default" range for a given RID,
	 * and we know what the resources for this device are (ie. they aren't
	 * maintained by a child bus), then work out the start/end values.
	 */

	if (isdefault) {
		rle = resource_list_find(&ivar->resources, type, *rid);
		if (rle == NULL) {
			return (NULL);
		}

		if (rle->res != NULL) {
			panic("%s: resource entry is busy", __func__);
		}
		start = rle->start;
		end = rle->end;
		count = rle->count;

		dprintf("%s: default resource (%p, %p, %ld)\n",
		    __func__, (void *)(intptr_t)start,
		    (void *)(intptr_t)end, count);
	}

	switch (type) {
	case SYS_RES_IRQ:
		rm = &sc->apb_irq_rman;
		break;
	case SYS_RES_MEMORY:
		rm = &sc->apb_mem_rman;
		break;
	default:
		printf("%s: unknown resource type %d\n", __func__, type);
		return (0);
	}

	rv = rman_reserve_resource(rm, start, end, count, flags, child);
	if (rv == 0) {
		printf("%s: could not reserve resource\n", __func__);
		return (0);
	}

	rman_set_rid(rv, *rid);

	if (needactivate) {
		if (bus_activate_resource(child, type, *rid, rv)) {
			printf("%s: could not activate resource\n", __func__);
			rman_release_resource(rv);
			return (0);
		}
	}

	return (rv);
}

开发者ID:vocho，项目名称:freebsd-base-graphics，代码行数:81，代码来源:apb.c

示例11: thunder_pem_alloc_resource

static struct resource *
thunder_pem_alloc_resource(device_t dev, device_t child, int type, int *rid,
    rman_res_t start, rman_res_t end, rman_res_t count, u_int flags)
{
	struct thunder_pem_softc *sc = device_get_softc(dev);
	struct rman *rm = NULL;
	struct resource *res;
	device_t parent_dev;

#if defined(NEW_PCIB) && defined(PCI_RES_BUS)
	if (type == PCI_RES_BUS)
		return (pci_domain_alloc_bus(sc->id, child, rid, start,  end,
		    count, flags));
#endif
	rm = thunder_pem_rman(sc, type);
	if (rm == NULL) {
		/* Find parent device. On ThunderX we know an exact path. */
		parent_dev = device_get_parent(device_get_parent(dev));
		return (BUS_ALLOC_RESOURCE(parent_dev, dev, type, rid, start,
		    end, count, flags));
	}


	if (!RMAN_IS_DEFAULT_RANGE(start, end)) {
		/*
		 * We might get PHYS addresses here inherited from EFI.
		 * Convert to PCI if necessary.
		 */
		if (range_addr_is_phys(sc->ranges, start, count)) {
			start = range_addr_phys_to_pci(sc->ranges, start);
			end = start + count - 1;
		}

	}

	if (bootverbose) {
		device_printf(dev,
		    "thunder_pem_alloc_resource: start=%#lx, end=%#lx, count=%#lx\n",
		    start, end, count);
	}

	res = rman_reserve_resource(rm, start, end, count, flags, child);
	if (res == NULL)
		goto fail;

	rman_set_rid(res, *rid);

	if (flags & RF_ACTIVE)
		if (bus_activate_resource(child, type, *rid, res)) {
			rman_release_resource(res);
			goto fail;
		}

	return (res);

fail:
	if (bootverbose) {
		device_printf(dev, "%s FAIL: type=%d, rid=%d, "
		    "start=%016lx, end=%016lx, count=%016lx, flags=%x\n",
		    __func__, type, *rid, start, end, count, flags);
	}

	return (NULL);
}

开发者ID:tomtor，项目名称:freebsd，代码行数:64，代码来源:thunder_pcie_pem.c

示例12: fdtbus_alloc_resource

static struct resource *
fdtbus_alloc_resource(device_t bus, device_t child, int type, int *rid,
    u_long start, u_long end, u_long count, u_int flags)
{
	struct fdtbus_softc *sc;
	struct resource *res;
	struct rman *rm;
	struct fdtbus_devinfo *di;
	struct resource_list_entry *rle;
	int needactivate;

	/*
	 * Request for the default allocation with a given rid: use resource
	 * list stored in the local device info.
	 */
	if ((start == 0UL) && (end == ~0UL)) {
		if ((di = device_get_ivars(child)) == NULL)
			return (NULL);

		if (type == SYS_RES_IOPORT)
			type = SYS_RES_MEMORY;

		rle = resource_list_find(&di->di_res, type, *rid);
		if (rle == NULL) {
			device_printf(bus, "no default resources for "
			    "rid = %d, type = %d\n", *rid, type);
			return (NULL);
		}
		start = rle->start;
		end = rle->end;
		count = rle->count;
	}

	sc = device_get_softc(bus);

	needactivate = flags & RF_ACTIVE;
	flags &= ~RF_ACTIVE;

	switch (type) {
	case SYS_RES_IRQ:
		rm = &sc->sc_irq;
		break;

	case SYS_RES_IOPORT:
	case SYS_RES_MEMORY:
		rm = &sc->sc_mem;
		break;

	default:
		return (NULL);
	}

	res = rman_reserve_resource(rm, start, end, count, flags, child);
	if (res == NULL) {
		device_printf(bus, "failed to reserve resource %#lx - %#lx "
		    "(%#lx)\n", start, end, count);
		return (NULL);
	}

	rman_set_rid(res, *rid);

	if (type == SYS_RES_IOPORT || type == SYS_RES_MEMORY) {
		/* XXX endianess should be set based on SOC node */
		rman_set_bustag(res, fdtbus_bs_tag);
		rman_set_bushandle(res, rman_get_start(res));
	}

	if (needactivate)
		if (bus_activate_resource(child, type, *rid, res)) {
			device_printf(child, "resource activation failed\n");
			rman_release_resource(res);
			return (NULL);
		}

	return (res);
}

开发者ID:ChaosJohn，项目名称:freebsd，代码行数:76，代码来源:fdtbus.c

示例13: pci_release_resource

int
pci_release_resource(device_t bus, device_t child, int type, int rid,
		       struct resource *r)
{
	return (rman_release_resource(r));
}

开发者ID:UnitedMarsupials，项目名称:kame，代码行数:6，代码来源:pcibus.c

示例14: obio_alloc_resource

static struct resource *
obio_alloc_resource(device_t bus, device_t child, int type, int *rid,
    u_long start, u_long end, u_long count, u_int flags)
{
	struct obio_softc		*sc = device_get_softc(bus);
	struct obio_ivar		*ivar = device_get_ivars(child);
	struct resource			*rv;
	struct resource_list_entry	*rle;
	struct rman			*rm;
	int				 isdefault, needactivate, passthrough;

	isdefault = (start == 0UL && end == ~0UL);
	needactivate = flags & RF_ACTIVE;
	passthrough = (device_get_parent(child) != bus);
	rle = NULL;

	if (passthrough)
		return (BUS_ALLOC_RESOURCE(device_get_parent(bus), child, type,
		    rid, start, end, count, flags));

	/*
	 * If this is an allocation of the "default" range for a given RID,
	 * and we know what the resources for this device are (ie. they aren't
	 * maintained by a child bus), then work out the start/end values.
	 */
	if (isdefault) {
		rle = resource_list_find(&ivar->resources, type, *rid);
		if (rle == NULL)
			return (NULL);
		if (rle->res != NULL) {
			panic("%s: resource entry is busy", __func__);
		}
		start = rle->start;
		end = rle->end;
		count = rle->count;
	}

	switch (type) {
	case SYS_RES_IRQ:
		rm = &sc->oba_irq_rman;
		break;
	case SYS_RES_MEMORY:
		rm = &sc->oba_mem_rman;
		break;
	default:
		printf("%s: unknown resource type %d\n", __func__, type);
		return (0);
	}

	rv = rman_reserve_resource(rm, start, end, count, flags, child);
	if (rv == 0) {
		printf("%s: could not reserve resource\n", __func__);
		return (0);
	}

	rman_set_rid(rv, *rid);

	if (needactivate) {
		if (bus_activate_resource(child, type, *rid, rv)) {
			printf("%s: could not activate resource\n", __func__);
			rman_release_resource(rv);
			return (0);
		}
	}

	return (rv);
}

开发者ID:JabirTech，项目名称:Source，代码行数:67，代码来源:obio.c

示例15: unin_chip_alloc_resource


//.........这里部分代码省略.........
	struct		rman *rm;
	u_long		adjstart, adjend, adjcount;
	struct		unin_chip_devinfo *dinfo;
	struct		resource_list_entry *rle;

	sc = device_get_softc(bus);
	dinfo = device_get_ivars(child);

	needactivate = flags & RF_ACTIVE;
	flags &= ~RF_ACTIVE;

	switch (type) {
	case SYS_RES_MEMORY:
	case SYS_RES_IOPORT:
		rle = resource_list_find(&dinfo->udi_resources, SYS_RES_MEMORY,
					 *rid);
		if (rle == NULL) {
			device_printf(bus, "no rle for %s memory %d\n",
				      device_get_nameunit(child), *rid);
			return (NULL);
		}

		rle->end = rle->end - 1; /* Hack? */

		if (start < rle->start)
			adjstart = rle->start;
		else if (start > rle->end)
			adjstart = rle->end;
		else
			adjstart = start;

		if (end < rle->start)
			adjend = rle->start;
		else if (end > rle->end)
			adjend = rle->end;
		else
			adjend = end;

		adjcount = adjend - adjstart;

		rm = &sc->sc_mem_rman;
		break;

	case SYS_RES_IRQ:
		/* Check for passthrough from subattachments. */
		if (device_get_parent(child) != bus)
			return BUS_ALLOC_RESOURCE(device_get_parent(bus), child,
						  type, rid, start, end, count,
						  flags);

		rle = resource_list_find(&dinfo->udi_resources, SYS_RES_IRQ,
		    *rid);
		if (rle == NULL) {
			if (dinfo->udi_ninterrupts >= 6) {
				device_printf(bus,
					      "%s has more than 6 interrupts\n",
					      device_get_nameunit(child));
				return (NULL);
			}
			resource_list_add(&dinfo->udi_resources, SYS_RES_IRQ,
					  dinfo->udi_ninterrupts, start, start,
					  1);

			dinfo->udi_interrupts[dinfo->udi_ninterrupts] = start;
			dinfo->udi_ninterrupts++;
		}

		return (resource_list_alloc(&dinfo->udi_resources, bus, child,
					    type, rid, start, end, count,
					    flags));
	default:
		device_printf(bus, "unknown resource request from %s\n",
			      device_get_nameunit(child));
		return (NULL);
	}

	rv = rman_reserve_resource(rm, adjstart, adjend, adjcount, flags,
				   child);
	if (rv == NULL) {
		device_printf(bus,
			      "failed to reserve resource %#lx - %#lx (%#lx)"
			      " for %s\n", adjstart, adjend, adjcount,
			      device_get_nameunit(child));
		return (NULL);
	}

	rman_set_rid(rv, *rid);

	if (needactivate) {
		if (bus_activate_resource(child, type, *rid, rv) != 0) {
                        device_printf(bus,
				      "failed to activate resource for %s\n",
				      device_get_nameunit(child));
			rman_release_resource(rv);
			return (NULL);
                }
        }

	return (rv);
}

开发者ID:coyizumi，项目名称:cs111，代码行数:101，代码来源:uninorth.c

示例16: sgmap_free_region

/*
 * Free a region allocated using sgmap_alloc_region().
 */
void
sgmap_free_region(struct sgmap *sgmap, void *mh)
{
	struct resource *res = mh;
	rman_release_resource(res);
}

开发者ID:UnitedMarsupials，项目名称:kame，代码行数:9，代码来源:sgmap.c

示例17: pxa_alloc_resource

static struct resource *
pxa_alloc_resource(device_t dev, device_t child, int type, int *rid,
    u_long start, u_long end, u_long count, u_int flags)
{
	struct	obio_softc *sc;
	struct	obio_device *od;
	struct	resource *rv;
	struct	resource_list *rl;
	struct	resource_list_entry *rle;
	struct	rman *rm;
	int	needactivate;

	sc = (struct obio_softc *)device_get_softc(dev);
	od = (struct obio_device *)device_get_ivars(child);
	rl = &od->od_resources;

	rle = resource_list_find(rl, type, *rid);
	if (rle == NULL) {
		/* We can allocate GPIO-based IRQs lazily. */
		if (type == SYS_RES_IRQ)
			return (pxa_alloc_gpio_irq(dev, child, type, rid,
			    start, end, count, flags));
		return (NULL);
	}
	if (rle->res != NULL)
		panic("pxa_alloc_resource: resource is busy");

	switch (type) {
	case SYS_RES_IRQ:
		rm = &sc->obio_irq;
		break;

	case SYS_RES_MEMORY:
		rm = &sc->obio_mem;
		break;

	default:
		return (NULL);
	}

	needactivate = flags & RF_ACTIVE;
	flags &= ~RF_ACTIVE;
	rv = rman_reserve_resource(rm, rle->start, rle->end, rle->count, flags,
	    child);
	if (rv == NULL)
		return (NULL);
	rle->res = rv;
	rman_set_rid(rv, *rid);
	if (type == SYS_RES_MEMORY) {
		rman_set_bustag(rv, sc->obio_bst);
		rman_set_bushandle(rv, rle->start);
	}

	if (needactivate) {
		if (bus_activate_resource(child, type, *rid, rv)) {
			rman_release_resource(rv);
			return (NULL);
		}
	}

	return (rv);
}

开发者ID:AhmadTux，项目名称:freebsd，代码行数:62，代码来源:pxa_obio.c

示例18: nexus_alloc_resource

/*
 * Allocate a resource on behalf of child.  NB: child is usually going to be a
 * child of one of our descendants, not a direct child of nexus0.
 * (Exceptions include npx.)
 */
static struct resource *
nexus_alloc_resource(device_t bus, device_t child, int type, int *rid,
		     u_long start, u_long end, u_long count, u_int flags)
{
	struct nexus_device *ndev = DEVTONX(child);
	struct	resource *rv;
	struct resource_list_entry *rle;
	struct	rman *rm;
	int needactivate = flags & RF_ACTIVE;

	/*
	 * If this is an allocation of the "default" range for a given RID, and
	 * we know what the resources for this device are (ie. they aren't maintained
	 * by a child bus), then work out the start/end values.
	 */
	if ((start == 0UL) && (end == ~0UL) && (count == 1)) {
		if (ndev == NULL)
			return(NULL);
		rle = resource_list_find(&ndev->nx_resources, type, *rid);
		if (rle == NULL)
			return(NULL);
		start = rle->start;
		end = rle->end;
		count = rle->count;
	}

	flags &= ~RF_ACTIVE;

	switch (type) {
	case SYS_RES_IRQ:
		rm = &irq_rman;
		break;

	case SYS_RES_DRQ:
		rm = &drq_rman;
		break;

	case SYS_RES_IOPORT:
		rm = &port_rman;
		break;

	case SYS_RES_MEMORY:
		rm = &mem_rman;
		break;

	default:
		return 0;
	}

	rv = rman_reserve_resource(rm, start, end, count, flags, child);
	if (rv == 0)
		return 0;

	if (type == SYS_RES_MEMORY) {
		rman_set_bustag(rv, I386_BUS_SPACE_MEM);
	} else if (type == SYS_RES_IOPORT) {
		rman_set_bustag(rv, I386_BUS_SPACE_IO);
#ifndef PC98
		rman_set_bushandle(rv, rv->r_start);
#endif
	}

#ifdef PC98
	if ((type == SYS_RES_MEMORY || type == SYS_RES_IOPORT) &&
	    i386_bus_space_handle_alloc(rv->r_bustag, rv->r_start, count,
					&rv->r_bushandle) != 0) {
		rman_release_resource(rv);
		return 0;
	}
#endif

	if (needactivate) {
		if (bus_activate_resource(child, type, *rid, rv)) {
#ifdef PC98
			if (type == SYS_RES_MEMORY || type == SYS_RES_IOPORT) {
				i386_bus_space_handle_free(rv->r_bustag,
				    rv->r_bushandle, rv->r_bushandle->bsh_sz);
			}
#endif
			rman_release_resource(rv);
			return 0;
		}
	}
	
	return rv;
}

开发者ID:MarginC，项目名称:kame，代码行数:91，代码来源:nexus.c

示例19: pxa_smi_alloc_resource

static struct resource *
pxa_smi_alloc_resource(device_t dev, device_t child, int type, int *rid,
    u_long start, u_long end, u_long count, u_int flags)
{
	struct	pxa_smi_softc *sc;
	struct	smi_ivars *smid;
	struct	resource *rv;
	struct	resource_list *rl;
	struct	resource_list_entry *rle;
	int	needactivate;

	sc = (struct pxa_smi_softc *)device_get_softc(dev);
	smid = (struct smi_ivars *)device_get_ivars(child);
	rl = &smid->smid_resources;

	if (type == SYS_RES_IOPORT)
		type = SYS_RES_MEMORY;

	rle = resource_list_find(rl, type, *rid);
	if (rle == NULL)
		return (NULL);
	if (rle->res != NULL)
		panic("pxa_smi_alloc_resource: resource is busy");

	needactivate = flags & RF_ACTIVE;
	flags &= ~RF_ACTIVE;

	switch (type) {
	case SYS_RES_MEMORY:
		rv = rman_reserve_resource(&sc->ps_mem, rle->start, rle->end,
		    rle->count, flags, child);
		if (rv == NULL)
			return (NULL);
		rle->res = rv;
		rman_set_rid(rv, *rid);
		rman_set_bustag(rv, sc->ps_bst);
		rman_set_bushandle(rv, rle->start);
		if (needactivate) {
			if (bus_activate_resource(child, type, *rid, rv) != 0) {
				rman_release_resource(rv);
				return (NULL);
			}
		}

		break;

	case SYS_RES_IRQ:
		rv = bus_alloc_resource(dev, type, rid, rle->start, rle->end,
		    rle->count, flags);
		if (rv == NULL)
			return (NULL);
		if (needactivate) {
			if (bus_activate_resource(child, type, *rid, rv) != 0) {
				bus_release_resource(dev, type, *rid, rv);
				return (NULL);
			}
		}

		break;

	default:
		return (NULL);
	}

	return (rv);
}

开发者ID:AhmadTux，项目名称:freebsd，代码行数:66，代码来源:pxa_smi.c

示例20: ebus_alloc_resource

static struct resource *
ebus_alloc_resource(device_t bus, device_t child, int type, int *rid,
    u_long start, u_long end, u_long count, u_int flags)
{
	struct ebus_softc *sc;
	struct resource_list *rl;
	struct resource_list_entry *rle = NULL;
	struct resource *res;
	struct ebus_rinfo *eri;
	struct ebus_nexus_ranges *enr;
	uint64_t cend, cstart, offset;
	int i, isdefault, passthrough, ridx;

	isdefault = (start == 0UL && end == ~0UL);
	passthrough = (device_get_parent(child) != bus);
	sc = device_get_softc(bus);
	rl = BUS_GET_RESOURCE_LIST(bus, child);
	switch (type) {
	case SYS_RES_MEMORY:
		KASSERT(!(isdefault && passthrough),
		    ("%s: passthrough of default allocation", __func__));
		if (!passthrough) {
			rle = resource_list_find(rl, type, *rid);
			if (rle == NULL)
				return (NULL);
			KASSERT(rle->res == NULL,
			    ("%s: resource entry is busy", __func__));
			if (isdefault) {
				start = rle->start;
				count = ulmax(count, rle->count);
				end = ulmax(rle->end, start + count - 1);
			}
		}

		res = NULL;
		if ((sc->sc_flags & EBUS_PCI) != 0) {
			/*
			 * Map EBus ranges to PCI ranges.  This may include
			 * changing the allocation type.
			 */
			(void)ofw_isa_range_map(sc->sc_range, sc->sc_nrange,
			    &start, &end, &ridx);
			eri = &sc->sc_rinfo[ridx];
			res = rman_reserve_resource(&eri->eri_rman, start,
			    end, count, flags & ~RF_ACTIVE, child);
			if (res == NULL)
				return (NULL);
			rman_set_rid(res, *rid);
			if ((flags & RF_ACTIVE) != 0 && bus_activate_resource(
			    child, type, *rid, res) != 0) {
				rman_release_resource(res);
				return (NULL);
			}
		} else {
			/* Map EBus ranges to nexus ranges. */
			for (i = 0; i < sc->sc_nrange; i++) {
				enr = &((struct ebus_nexus_ranges *)
				    sc->sc_range)[i];
				cstart = (((uint64_t)enr->child_hi) << 32) |
				    enr->child_lo;
				cend = cstart + enr->size - 1;
				if (start >= cstart && end <= cend) {
					offset =
					    (((uint64_t)enr->phys_hi) << 32) |
					    enr->phys_lo;
					start += offset - cstart;
					end += offset - cstart;
					res = bus_generic_alloc_resource(bus,
					    child, type, rid, start, end,
					    count, flags);
					break;
				}
			}
		}
		if (!passthrough)
			rle->res = res;
		return (res);
	case SYS_RES_IRQ:
		return (resource_list_alloc(rl, bus, child, type, rid, start,
		    end, count, flags));
	}
	return (NULL);
}

开发者ID:AhmadTux，项目名称:freebsd，代码行数:83，代码来源:ebus.c

注：本文中的rman_release_resource函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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C++ rman_release_resource函数代码示例

示例1: obio_release_resource

示例2: chipc_release_resource

示例3: obio_alloc_resource

示例4: ofwbus_release_resource

示例5: cbb_pci_release_resource

示例6: thunder_pem_release_resource

示例7: gpiobus_alloc_resource

示例8: nexus_alloc_resource

示例9: pci_host_generic_core_release_resource

示例10: apb_alloc_resource

示例11: thunder_pem_alloc_resource

示例12: fdtbus_alloc_resource

示例13: pci_release_resource

示例14: obio_alloc_resource

示例15: unin_chip_alloc_resource

示例16: sgmap_free_region

示例17: pxa_alloc_resource

示例18: nexus_alloc_resource

示例19: pxa_smi_alloc_resource

示例20: ebus_alloc_resource

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