コード例 #1
0
static ACPI_STATUS
acpi_pci_link_route_irqs(device_t dev)
{
	struct acpi_pci_link_softc *sc;
	ACPI_RESOURCE *resource, *end;
	ACPI_BUFFER srsbuf;
	ACPI_STATUS status;
	struct link *link;
	int i;

	ACPI_SERIAL_ASSERT(pci_link);
	sc = device_get_softc(dev);
	if (sc->pl_crs_bad)
		status = acpi_pci_link_srs_from_links(sc, &srsbuf);
	else
		status = acpi_pci_link_srs_from_crs(sc, &srsbuf);

	/* Write out new resources via _SRS. */
	status = AcpiSetCurrentResources(acpi_get_handle(dev), &srsbuf);
	if (ACPI_FAILURE(status)) {
		device_printf(dev, "Unable to route IRQs: %s\n",
		    AcpiFormatException(status));
		AcpiOsFree(srsbuf.Pointer);
		return (status);
	}

	/*
	 * Perform acpi_config_intr() on each IRQ resource if it was just
	 * routed for the first time.
	 */
	link = sc->pl_links;
	i = 0;
	resource = (ACPI_RESOURCE *)srsbuf.Pointer;
	end = (ACPI_RESOURCE *)((char *)srsbuf.Pointer + srsbuf.Length);
	for (;;) {
		if (resource->Type == ACPI_RESOURCE_TYPE_END_TAG)
			break;
		switch (resource->Type) {
		case ACPI_RESOURCE_TYPE_IRQ:
		case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
			MPASS(i < sc->pl_num_links);

			/*
			 * Only configure the interrupt and update the
			 * weights if this link has a valid IRQ and was
			 * previously unrouted.
			 */
			if (!link->l_routed &&
			    PCI_INTERRUPT_VALID(link->l_irq)) {
				link->l_routed = TRUE;
				acpi_config_intr(dev, resource);
				pci_link_interrupt_weights[link->l_irq] +=
				    link->l_references;
			}
			link++;
			i++;
			break;
		}
		resource = ACPI_NEXT_RESOURCE(resource);
		if (resource >= end)
			break;
	}
	AcpiOsFree(srsbuf.Pointer);
	return (AE_OK);
}
コード例 #2
0
ファイル: BusManager.cpp プロジェクト: simonsouth/haiku
status_t
set_current_resources(acpi_handle busDeviceHandle, acpi_data *buffer)
{
    return AcpiSetCurrentResources(busDeviceHandle, (ACPI_BUFFER*)buffer)
           == AE_OK ? B_OK : B_ERROR;
}
コード例 #3
0
ファイル: dbcmds.c プロジェクト: dmarion/freebsd-armv6-sys
static ACPI_STATUS
AcpiDbDeviceResources (
    ACPI_HANDLE             ObjHandle,
    UINT32                  NestingLevel,
    void                    *Context,
    void                    **ReturnValue)
{
    ACPI_NAMESPACE_NODE     *Node;
    ACPI_NAMESPACE_NODE     *PrtNode = NULL;
    ACPI_NAMESPACE_NODE     *CrsNode = NULL;
    ACPI_NAMESPACE_NODE     *PrsNode = NULL;
    ACPI_NAMESPACE_NODE     *AeiNode = NULL;
    char                    *ParentPath;
    ACPI_BUFFER             ReturnObj;
    ACPI_STATUS             Status;


    Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, ObjHandle);
    ParentPath = AcpiNsGetExternalPathname (Node);
    if (!ParentPath)
    {
        return (AE_NO_MEMORY);
    }

    /* Get handles to the resource methods for this device */

    (void) AcpiGetHandle (Node, METHOD_NAME__PRT, ACPI_CAST_PTR (ACPI_HANDLE, &PrtNode));
    (void) AcpiGetHandle (Node, METHOD_NAME__CRS, ACPI_CAST_PTR (ACPI_HANDLE, &CrsNode));
    (void) AcpiGetHandle (Node, METHOD_NAME__PRS, ACPI_CAST_PTR (ACPI_HANDLE, &PrsNode));
    (void) AcpiGetHandle (Node, METHOD_NAME__AEI, ACPI_CAST_PTR (ACPI_HANDLE, &AeiNode));
    if (!PrtNode && !CrsNode && !PrsNode && !AeiNode)
    {
        goto Cleanup;   /* Nothing to do */
    }

    AcpiOsPrintf ("\nDevice: %s\n", ParentPath);

    /* Prepare for a return object of arbitrary size */

    ReturnObj.Pointer = AcpiGbl_DbBuffer;
    ReturnObj.Length  = ACPI_DEBUG_BUFFER_SIZE;


    /* _PRT */

    if (PrtNode)
    {
        AcpiOsPrintf ("Evaluating _PRT\n");

        Status = AcpiEvaluateObject (PrtNode, NULL, NULL, &ReturnObj);
        if (ACPI_FAILURE (Status))
        {
            AcpiOsPrintf ("Could not evaluate _PRT: %s\n",
                AcpiFormatException (Status));
            goto GetCrs;
        }

        ReturnObj.Pointer = AcpiGbl_DbBuffer;
        ReturnObj.Length  = ACPI_DEBUG_BUFFER_SIZE;

        Status = AcpiGetIrqRoutingTable (Node, &ReturnObj);
        if (ACPI_FAILURE (Status))
        {
            AcpiOsPrintf ("GetIrqRoutingTable failed: %s\n",
                AcpiFormatException (Status));
            goto GetCrs;
        }

        AcpiRsDumpIrqList (ACPI_CAST_PTR (UINT8, AcpiGbl_DbBuffer));
    }


    /* _CRS */

GetCrs:
    if (CrsNode)
    {
        AcpiOsPrintf ("Evaluating _CRS\n");

        ReturnObj.Pointer = AcpiGbl_DbBuffer;
        ReturnObj.Length  = ACPI_DEBUG_BUFFER_SIZE;

        Status = AcpiEvaluateObject (CrsNode, NULL, NULL, &ReturnObj);
        if (ACPI_FAILURE (Status))
        {
            AcpiOsPrintf ("Could not evaluate _CRS: %s\n",
                AcpiFormatException (Status));
            goto GetPrs;
        }

        /* This code is here to exercise the AcpiWalkResources interface */

        Status = AcpiWalkResources (Node, METHOD_NAME__CRS,
            AcpiDbResourceCallback, NULL);
        if (ACPI_FAILURE (Status))
        {
            AcpiOsPrintf ("AcpiWalkResources failed: %s\n",
                AcpiFormatException (Status));
            goto GetPrs;
        }

        /* Get the _CRS resource list */

        ReturnObj.Pointer = AcpiGbl_DbBuffer;
        ReturnObj.Length  = ACPI_DEBUG_BUFFER_SIZE;

        Status = AcpiGetCurrentResources (Node, &ReturnObj);
        if (ACPI_FAILURE (Status))
        {
            AcpiOsPrintf ("AcpiGetCurrentResources failed: %s\n",
                AcpiFormatException (Status));
            goto GetPrs;
        }

        /* Dump the _CRS resource list */

        AcpiRsDumpResourceList (ACPI_CAST_PTR (ACPI_RESOURCE,
            ReturnObj.Pointer));

        /*
         * Perform comparison of original AML to newly created AML. This tests both
         * the AML->Resource conversion and the Resource->Aml conversion.
         */
        Status = AcpiDmTestResourceConversion (Node, METHOD_NAME__CRS);

        /* Execute _SRS with the resource list */

        Status = AcpiSetCurrentResources (Node, &ReturnObj);
        if (ACPI_FAILURE (Status))
        {
            AcpiOsPrintf ("AcpiSetCurrentResources failed: %s\n",
                AcpiFormatException (Status));
            goto GetPrs;
        }
    }


    /* _PRS */

GetPrs:
    if (PrsNode)
    {
        AcpiOsPrintf ("Evaluating _PRS\n");

        ReturnObj.Pointer = AcpiGbl_DbBuffer;
        ReturnObj.Length  = ACPI_DEBUG_BUFFER_SIZE;

        Status = AcpiEvaluateObject (PrsNode, NULL, NULL, &ReturnObj);
        if (ACPI_FAILURE (Status))
        {
            AcpiOsPrintf ("Could not evaluate _PRS: %s\n",
                AcpiFormatException (Status));
            goto GetAei;
        }

        ReturnObj.Pointer = AcpiGbl_DbBuffer;
        ReturnObj.Length  = ACPI_DEBUG_BUFFER_SIZE;

        Status = AcpiGetPossibleResources (Node, &ReturnObj);
        if (ACPI_FAILURE (Status))
        {
            AcpiOsPrintf ("AcpiGetPossibleResources failed: %s\n",
                AcpiFormatException (Status));
            goto GetAei;
        }

        AcpiRsDumpResourceList (ACPI_CAST_PTR (ACPI_RESOURCE, AcpiGbl_DbBuffer));
    }


    /* _AEI */

GetAei:
    if (AeiNode)
    {
        AcpiOsPrintf ("Evaluating _AEI\n");

        ReturnObj.Pointer = AcpiGbl_DbBuffer;
        ReturnObj.Length  = ACPI_DEBUG_BUFFER_SIZE;

        Status = AcpiEvaluateObject (AeiNode, NULL, NULL, &ReturnObj);
        if (ACPI_FAILURE (Status))
        {
            AcpiOsPrintf ("Could not evaluate _AEI: %s\n",
                AcpiFormatException (Status));
            goto Cleanup;
        }

        ReturnObj.Pointer = AcpiGbl_DbBuffer;
        ReturnObj.Length  = ACPI_DEBUG_BUFFER_SIZE;

        Status = AcpiGetEventResources (Node, &ReturnObj);
        if (ACPI_FAILURE (Status))
        {
            AcpiOsPrintf ("AcpiGetEventResources failed: %s\n",
                AcpiFormatException (Status));
            goto Cleanup;
        }

        AcpiRsDumpResourceList (ACPI_CAST_PTR (ACPI_RESOURCE, AcpiGbl_DbBuffer));
    }


Cleanup:
    ACPI_FREE (ParentPath);
    return (AE_OK);
}
コード例 #4
0
/*
 * Sets the irq resource of the lnk object to the requested irq value.
 *
 * Returns ACPI_PSM_SUCCESS on success, ACPI_PSM_FAILURE upon failure.
 */
int
acpi_set_irq_resource(acpi_psm_lnk_t *acpipsmlnkp, int irq)
{
	ACPI_BUFFER	rsb;
	ACPI_RESOURCE	*resp;
	ACPI_RESOURCE	*srsp;
	ACPI_HANDLE lnkobj;
	int srs_len, status;

	ASSERT(acpipsmlnkp != NULL);

	lnkobj = acpipsmlnkp->lnkobj;

	/*
	 * Fetch the possible resources for the link
	 */

	rsb.Pointer = NULL;
	rsb.Length = ACPI_ALLOCATE_BUFFER;
	status = AcpiGetPossibleResources(lnkobj, &rsb);
	if (status != AE_OK) {
		cmn_err(CE_WARN, "!psm: set_irq: _PRS failed");
		return (ACPI_PSM_FAILURE);
	}

	/*
	 * Find an IRQ resource descriptor to use as template
	 */
	srsp = NULL;
	for (resp = rsb.Pointer; resp->Type != ACPI_RESOURCE_TYPE_END_TAG;
	    resp = ACPI_NEXT_RESOURCE(resp)) {
		if ((resp->Type == ACPI_RESOURCE_TYPE_IRQ) ||
		    (resp->Type == ACPI_RESOURCE_TYPE_EXTENDED_IRQ)) {
			ACPI_RESOURCE *endtag;
			/*
			 * Allocate enough room for this resource entry
			 * and one end tag following it
			 */
			srs_len = resp->Length + sizeof (*endtag);
			srsp = kmem_zalloc(srs_len, KM_SLEEP);
			bcopy(resp, srsp, resp->Length);
			endtag = ACPI_NEXT_RESOURCE(srsp);
			endtag->Type = ACPI_RESOURCE_TYPE_END_TAG;
			endtag->Length = 0;
			break;	/* drop out of the loop */
		}
	}

	/*
	 * We're done with the PRS values, toss 'em lest we forget
	 */
	AcpiOsFree(rsb.Pointer);

	if (srsp == NULL)
		return (ACPI_PSM_FAILURE);

	/*
	 * The Interrupts[] array is always at least one entry
	 * long; see the definition of ACPI_RESOURCE.
	 */
	switch (srsp->Type) {
	case ACPI_RESOURCE_TYPE_IRQ:
		srsp->Data.Irq.InterruptCount = 1;
		srsp->Data.Irq.Interrupts[0] = irq;
		break;
	case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
		srsp->Data.ExtendedIrq.InterruptCount = 1;
		srsp->Data.ExtendedIrq.Interrupts[0] = irq;
		break;
	}

	rsb.Pointer = srsp;
	rsb.Length = srs_len;
	status = AcpiSetCurrentResources(lnkobj, &rsb);
	kmem_free(srsp, srs_len);
	if (status != AE_OK) {
		cmn_err(CE_WARN, "!psm: set_irq: _SRS failed");
		return (ACPI_PSM_FAILURE);
	}

	if (acpica_eval_int(lnkobj, "_STA", &status) == AE_OK) {
		acpipsmlnkp->device_status = (uchar_t)status;
		return (ACPI_PSM_SUCCESS);
	} else
		return (ACPI_PSM_FAILURE);
}