drivers/acpi/acpica/rsdump.c

Source file repositories/reference/linux-study-clean/drivers/acpi/acpica/rsdump.c

File Facts

System
Linux kernel
Corpus path
drivers/acpi/acpica/rsdump.c
Extension
.c
Size
14130 bytes
Lines
587
Domain
Driver Families
Bucket
drivers/acpi
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

if (type > ACPI_RESOURCE_TYPE_MAX) {
			acpi_os_printf
			    ("Invalid descriptor type (%X) in resource list\n",
			     resource_list->type);
			return;
		} else if (!resource_list->type) {
			ACPI_ERROR((AE_INFO, "Invalid Zero Resource Type"));
			return;
		}

		/* Sanity check the length. It must not be zero, or we loop forever */

		if (!resource_list->length) {
			acpi_os_printf
			    ("Invalid zero length descriptor in resource list\n");
			return;
		}

		/* Dump the resource descriptor */

		if (type == ACPI_RESOURCE_TYPE_SERIAL_BUS) {
			acpi_rs_dump_descriptor(&resource_list->data,
						acpi_gbl_dump_serial_bus_dispatch
						[resource_list->data.
						 common_serial_bus.type]);
		} else {
			acpi_rs_dump_descriptor(&resource_list->data,
						acpi_gbl_dump_resource_dispatch
						[type]);
		}

		/* Point to the next resource structure */

		resource_list = ACPI_NEXT_RESOURCE(resource_list);

		/* Exit when END_TAG descriptor is reached */

	} while (type != ACPI_RESOURCE_TYPE_END_TAG);
}

/*******************************************************************************
 *
 * FUNCTION:    acpi_rs_dump_irq_list
 *
 * PARAMETERS:  route_table     - Pointer to the routing table to dump.
 *
 * RETURN:      None
 *
 * DESCRIPTION: Print IRQ routing table
 *
 ******************************************************************************/

void acpi_rs_dump_irq_list(u8 *route_table)
{
	struct acpi_pci_routing_table *prt_element;
	u8 count;

	ACPI_FUNCTION_ENTRY();

	/* Check if debug output enabled */

	if (!ACPI_IS_DEBUG_ENABLED(ACPI_LV_RESOURCES, _COMPONENT)) {
		return;
	}

	prt_element = ACPI_CAST_PTR(struct acpi_pci_routing_table, route_table);

	/* Dump all table elements, Exit on zero length element */

	for (count = 0; prt_element->length; count++) {
		acpi_os_printf("\n[%02X] PCI IRQ Routing Table Package\n",
			       count);
		acpi_rs_dump_descriptor(prt_element, acpi_rs_dump_prt);

		prt_element = ACPI_ADD_PTR(struct acpi_pci_routing_table,
					   prt_element, prt_element->length);
	}
}
#endif

/*******************************************************************************
 *
 * FUNCTION:    acpi_rs_dump_descriptor
 *
 * PARAMETERS:  resource            - Buffer containing the resource
 *              table               - Table entry to decode the resource
 *
 * RETURN:      None
 *
 * DESCRIPTION: Dump a resource descriptor based on a dump table entry.

Annotation

Implementation Notes