linux/drivers/acpi/acpica/rsmisc.c

// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
/*******************************************************************************
 *
 * Module Name: rsmisc - Miscellaneous resource descriptors
 *
 ******************************************************************************/

#include <acpi/acpi.h>
#include "accommon.h"
#include "acresrc.h"

#define _COMPONENT …
ACPI_MODULE_NAME("rsmisc")
#define INIT_RESOURCE_TYPE(i) …
#define INIT_RESOURCE_LENGTH(i) …
#define INIT_TABLE_LENGTH(i) …
#define COMPARE_OPCODE(i) …
#define COMPARE_TARGET(i) …
#define COMPARE_VALUE(i) …
/*******************************************************************************
 *
 * FUNCTION:    acpi_rs_convert_aml_to_resource
 *
 * PARAMETERS:  resource            - Pointer to the resource descriptor
 *              aml                 - Where the AML descriptor is returned
 *              info                - Pointer to appropriate conversion table
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Convert an external AML resource descriptor to the corresponding
 *              internal resource descriptor
 *
 ******************************************************************************/
acpi_status
acpi_rs_convert_aml_to_resource(struct acpi_resource *resource,
				union aml_resource *aml,
				struct acpi_rsconvert_info *info)
{ … }

/*******************************************************************************
 *
 * FUNCTION:    acpi_rs_convert_resource_to_aml
 *
 * PARAMETERS:  resource            - Pointer to the resource descriptor
 *              aml                 - Where the AML descriptor is returned
 *              info                - Pointer to appropriate conversion table
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Convert an internal resource descriptor to the corresponding
 *              external AML resource descriptor.
 *
 ******************************************************************************/

acpi_status
acpi_rs_convert_resource_to_aml(struct acpi_resource *resource,
				union aml_resource *aml,
				struct acpi_rsconvert_info *info)
{ … }

#if 0
/* Previous resource validations */

if (aml->ext_address64.revision_ID != AML_RESOURCE_EXTENDED_ADDRESS_REVISION) {
	return_ACPI_STATUS(AE_SUPPORT);
}

if (resource->data.start_dpf.performance_robustness >= 3) {
	return_ACPI_STATUS(AE_AML_BAD_RESOURCE_VALUE);
}

if (((aml->irq.flags & 0x09) == 0x00) || ((aml->irq.flags & 0x09) == 0x09)) {
	/*
	 * Only [active_high, edge_sensitive] or [active_low, level_sensitive]
	 * polarity/trigger interrupts are allowed (ACPI spec, section
	 * "IRQ Format"), so 0x00 and 0x09 are illegal.
	 */
	ACPI_ERROR((AE_INFO,
		    "Invalid interrupt polarity/trigger in resource list, 0x%X",
		    aml->irq.flags));
	return_ACPI_STATUS(AE_BAD_DATA);
}

resource->data.extended_irq.interrupt_count = temp8;
if (temp8 < 1) {

	/* Must have at least one IRQ */

	return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH);
}

if (resource->data.dma.transfer == 0x03) {
	ACPI_ERROR((AE_INFO, "Invalid DMA.Transfer preference (3)"));
	return_ACPI_STATUS(AE_BAD_DATA);
}
#endif