[deliverable/linux.git] / drivers / acpi / resources / rsmisc.c

/*******************************************************************************
 *
 * Module Name: rsmisc - Miscellaneous resource descriptors
 *
 ******************************************************************************/

/*
 * Copyright (C) 2000 - 2008, Intel Corp.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions, and the following disclaimer,
 *    without modification.
 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
 *    substantially similar to the "NO WARRANTY" disclaimer below
 *    ("Disclaimer") and any redistribution must be conditioned upon
 *    including a substantially similar Disclaimer requirement for further
 *    binary redistribution.
 * 3. Neither the names of the above-listed copyright holders nor the names
 *    of any contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * Alternatively, this software may be distributed under the terms of the
 * GNU General Public License ("GPL") version 2 as published by the Free
 * Software Foundation.
 *
 * NO WARRANTY
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGES.
 */

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

#define _COMPONENT          ACPI_RESOURCES
ACPI_MODULE_NAME("rsmisc")
#define INIT_RESOURCE_TYPE(i)       i->resource_offset
#define INIT_RESOURCE_LENGTH(i)     i->aml_offset
#define INIT_TABLE_LENGTH(i)        i->value
#define COMPARE_OPCODE(i)           i->resource_offset
#define COMPARE_TARGET(i)           i->aml_offset
#define COMPARE_VALUE(i)            i->value
/*******************************************************************************
 *
 * 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)
{
	acpi_rs_length aml_resource_length;
	void *source;
	void *destination;
	char *target;
	u8 count;
	u8 flags_mode = FALSE;
	u16 item_count = 0;
	u16 temp16 = 0;

	ACPI_FUNCTION_TRACE(rs_convert_aml_to_resource);

	if (((acpi_size) resource) & 0x3) {

		/* Each internal resource struct is expected to be 32-bit aligned */

		ACPI_WARNING((AE_INFO,
			      "Misaligned resource pointer (get): %p Type %2.2X Len %X",
			      resource, resource->type, resource->length));
	}

	/* Extract the resource Length field (does not include header length) */

	aml_resource_length = acpi_ut_get_resource_length(aml);

	/*
	 * First table entry must be ACPI_RSC_INITxxx and must contain the
	 * table length (# of table entries)
	 */
	count = INIT_TABLE_LENGTH(info);

	while (count) {
		/*
		 * Source is the external AML byte stream buffer,
		 * destination is the internal resource descriptor
		 */
		source = ACPI_ADD_PTR(void, aml, info->aml_offset);
		destination =
		    ACPI_ADD_PTR(void, resource, info->resource_offset);

		switch (info->opcode) {
		case ACPI_RSC_INITGET:
			/*
			 * Get the resource type and the initial (minimum) length
			 */
			ACPI_MEMSET(resource, 0, INIT_RESOURCE_LENGTH(info));
			resource->type = INIT_RESOURCE_TYPE(info);
			resource->length = INIT_RESOURCE_LENGTH(info);
			break;

		case ACPI_RSC_INITSET:
			break;

		case ACPI_RSC_FLAGINIT:

			flags_mode = TRUE;
			break;

		case ACPI_RSC_1BITFLAG:
			/*
			 * Mask and shift the flag bit
			 */
			ACPI_SET8(destination) = (u8)
			    ((ACPI_GET8(source) >> info->value) & 0x01);
			break;

		case ACPI_RSC_2BITFLAG:
			/*
			 * Mask and shift the flag bits
			 */
			ACPI_SET8(destination) = (u8)
			    ((ACPI_GET8(source) >> info->value) & 0x03);
			break;

		case ACPI_RSC_COUNT:

			item_count = ACPI_GET8(source);
			ACPI_SET8(destination) = (u8) item_count;

			resource->length = resource->length +
			    (info->value * (item_count - 1));
			break;

		case ACPI_RSC_COUNT16:

			item_count = aml_resource_length;
			ACPI_SET16(destination) = item_count;

			resource->length = resource->length +
			    (info->value * (item_count - 1));
			break;

		case ACPI_RSC_LENGTH:

			resource->length = resource->length + info->value;
			break;

		case ACPI_RSC_MOVE8:
		case ACPI_RSC_MOVE16:
		case ACPI_RSC_MOVE32:
		case ACPI_RSC_MOVE64:
			/*
			 * Raw data move. Use the Info value field unless item_count has
			 * been previously initialized via a COUNT opcode
			 */
			if (info->value) {
				item_count = info->value;
			}
			acpi_rs_move_data(destination, source, item_count,
					  info->opcode);
			break;

		case ACPI_RSC_SET8:

			ACPI_MEMSET(destination, info->aml_offset, info->value);
			break;

		case ACPI_RSC_DATA8:

			target = ACPI_ADD_PTR(char, resource, info->value);
			ACPI_MEMCPY(destination, source, ACPI_GET16(target));
			break;

		case ACPI_RSC_ADDRESS:
			/*
			 * Common handler for address descriptor flags
			 */
			if (!acpi_rs_get_address_common(resource, aml)) {
				return_ACPI_STATUS
				    (AE_AML_INVALID_RESOURCE_TYPE);
			}
			break;

		case ACPI_RSC_SOURCE:
			/*
			 * Optional resource_source (Index and String)
			 */
			resource->length +=
			    acpi_rs_get_resource_source(aml_resource_length,
							info->value,
							destination, aml, NULL);
			break;

		case ACPI_RSC_SOURCEX:
			/*
			 * Optional resource_source (Index and String). This is the more
			 * complicated case used by the Interrupt() macro
			 */
			target =
			    ACPI_ADD_PTR(char, resource,
					 info->aml_offset + (item_count * 4));

			resource->length +=
			    acpi_rs_get_resource_source(aml_resource_length,
							(acpi_rs_length) (((item_count - 1) * sizeof(u32)) + info->value), destination, aml, target);
			break;

		case ACPI_RSC_BITMASK:
			/*
			 * 8-bit encoded bitmask (DMA macro)
			 */
			item_count =
			    acpi_rs_decode_bitmask(ACPI_GET8(source),
						   destination);
			if (item_count) {
				resource->length += (item_count - 1);
			}

			target = ACPI_ADD_PTR(char, resource, info->value);
			ACPI_SET8(target) = (u8) item_count;
			break;

		case ACPI_RSC_BITMASK16:
			/*
			 * 16-bit encoded bitmask (IRQ macro)
			 */
			ACPI_MOVE_16_TO_16(&temp16, source);

			item_count =
			    acpi_rs_decode_bitmask(temp16, destination);
			if (item_count) {
				resource->length += (item_count - 1);
			}

			target = ACPI_ADD_PTR(char, resource, info->value);
			ACPI_SET8(target) = (u8) item_count;
			break;

		case ACPI_RSC_EXIT_NE:
			/*
			 * Control - Exit conversion if not equal
			 */
			switch (info->resource_offset) {
			case ACPI_RSC_COMPARE_AML_LENGTH:
				if (aml_resource_length != info->value) {
					goto exit;
				}
				break;

			case ACPI_RSC_COMPARE_VALUE:
				if (ACPI_GET8(source) != info->value) {
					goto exit;
				}
				break;

			default:

				ACPI_ERROR((AE_INFO,
					    "Invalid conversion sub-opcode"));
				return_ACPI_STATUS(AE_BAD_PARAMETER);
			}
			break;

		default:

			ACPI_ERROR((AE_INFO, "Invalid conversion opcode"));
			return_ACPI_STATUS(AE_BAD_PARAMETER);
		}

		count--;
		info++;
	}

      exit:
	if (!flags_mode) {

		/* Round the resource struct length up to the next boundary (32 or 64) */

		resource->length =
		    (u32) ACPI_ROUND_UP_TO_NATIVE_WORD(resource->length);
	}
	return_ACPI_STATUS(AE_OK);
}

/*******************************************************************************
 *
 * 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)
{
	void *source = NULL;
	void *destination;
	acpi_rsdesc_size aml_length = 0;
	u8 count;
	u16 temp16 = 0;
	u16 item_count = 0;

	ACPI_FUNCTION_TRACE(rs_convert_resource_to_aml);

	/*
	 * First table entry must be ACPI_RSC_INITxxx and must contain the
	 * table length (# of table entries)
	 */
	count = INIT_TABLE_LENGTH(info);

	while (count) {
		/*
		 * Source is the internal resource descriptor,
		 * destination is the external AML byte stream buffer
		 */
		source = ACPI_ADD_PTR(void, resource, info->resource_offset);
		destination = ACPI_ADD_PTR(void, aml, info->aml_offset);

		switch (info->opcode) {
		case ACPI_RSC_INITSET:

			ACPI_MEMSET(aml, 0, INIT_RESOURCE_LENGTH(info));
			aml_length = INIT_RESOURCE_LENGTH(info);
			acpi_rs_set_resource_header(INIT_RESOURCE_TYPE(info),
						    aml_length, aml);
			break;

		case ACPI_RSC_INITGET:
			break;

		case ACPI_RSC_FLAGINIT:
			/*
			 * Clear the flag byte
			 */
			ACPI_SET8(destination) = 0;
			break;

		case ACPI_RSC_1BITFLAG:
			/*
			 * Mask and shift the flag bit
			 */
			ACPI_SET8(destination) |= (u8)
			    ((ACPI_GET8(source) & 0x01) << info->value);
			break;

		case ACPI_RSC_2BITFLAG:
			/*
			 * Mask and shift the flag bits
			 */
			ACPI_SET8(destination) |= (u8)
			    ((ACPI_GET8(source) & 0x03) << info->value);
			break;

		case ACPI_RSC_COUNT:

			item_count = ACPI_GET8(source);
			ACPI_SET8(destination) = (u8) item_count;

			aml_length =
			    (u16) (aml_length +
				   (info->value * (item_count - 1)));
			break;

		case ACPI_RSC_COUNT16:

			item_count = ACPI_GET16(source);
			aml_length = (u16) (aml_length + item_count);
			acpi_rs_set_resource_length(aml_length, aml);
			break;

		case ACPI_RSC_LENGTH:

			acpi_rs_set_resource_length(info->value, aml);
			break;

		case ACPI_RSC_MOVE8:
		case ACPI_RSC_MOVE16:
		case ACPI_RSC_MOVE32:
		case ACPI_RSC_MOVE64:

			if (info->value) {
				item_count = info->value;
			}
			acpi_rs_move_data(destination, source, item_count,
					  info->opcode);
			break;

		case ACPI_RSC_ADDRESS:

			/* Set the Resource Type, General Flags, and Type-Specific Flags */

			acpi_rs_set_address_common(aml, resource);
			break;

		case ACPI_RSC_SOURCEX:
			/*
			 * Optional resource_source (Index and String)
			 */
			aml_length =
			    acpi_rs_set_resource_source(aml, (acpi_rs_length)
							aml_length, source);
			acpi_rs_set_resource_length(aml_length, aml);
			break;

		case ACPI_RSC_SOURCE:
			/*
			 * Optional resource_source (Index and String). This is the more
			 * complicated case used by the Interrupt() macro
			 */
			aml_length =
			    acpi_rs_set_resource_source(aml, info->value,
							source);
			acpi_rs_set_resource_length(aml_length, aml);
			break;

		case ACPI_RSC_BITMASK:
			/*
			 * 8-bit encoded bitmask (DMA macro)
			 */
			ACPI_SET8(destination) = (u8)
			    acpi_rs_encode_bitmask(source,
						   *ACPI_ADD_PTR(u8, resource,
								 info->value));
			break;

		case ACPI_RSC_BITMASK16:
			/*
			 * 16-bit encoded bitmask (IRQ macro)
			 */
			temp16 = acpi_rs_encode_bitmask(source,
							*ACPI_ADD_PTR(u8,
								      resource,
								      info->
								      value));
			ACPI_MOVE_16_TO_16(destination, &temp16);
			break;

		case ACPI_RSC_EXIT_LE:
			/*
			 * Control - Exit conversion if less than or equal
			 */
			if (item_count <= info->value) {
				goto exit;
			}
			break;

		case ACPI_RSC_EXIT_NE:
			/*
			 * Control - Exit conversion if not equal
			 */
			switch (COMPARE_OPCODE(info)) {
			case ACPI_RSC_COMPARE_VALUE:

				if (*ACPI_ADD_PTR(u8, resource,
						  COMPARE_TARGET(info)) !=
				    COMPARE_VALUE(info)) {
					goto exit;
				}
				break;

			default:

				ACPI_ERROR((AE_INFO,
					    "Invalid conversion sub-opcode"));
				return_ACPI_STATUS(AE_BAD_PARAMETER);
			}
			break;

		case ACPI_RSC_EXIT_EQ:
			/*
			 * Control - Exit conversion if equal
			 */
			if (*ACPI_ADD_PTR(u8, resource,
					  COMPARE_TARGET(info)) ==
			    COMPARE_VALUE(info)) {
				goto exit;
			}
			break;

		default:

			ACPI_ERROR((AE_INFO, "Invalid conversion opcode"));
			return_ACPI_STATUS(AE_BAD_PARAMETER);
		}

		count--;
		info++;
	}

      exit:
	return_ACPI_STATUS(AE_OK);
}

#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, %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
Commit	Line	Data
1da177e4 LT	1	/*******************************************************************************
	2	*
	3	* Module Name: rsmisc - Miscellaneous resource descriptors
	4	*
	5	******************************************************************************/
	6
	7	/*
75a44ce0	8	* Copyright (C) 2000 - 2008, Intel Corp.
1da177e4 LT	9	* All rights reserved.
	10	*
	11	* Redistribution and use in source and binary forms, with or without
	12	* modification, are permitted provided that the following conditions
	13	* are met:
	14	* 1. Redistributions of source code must retain the above copyright
	15	* notice, this list of conditions, and the following disclaimer,
	16	* without modification.
	17	* 2. Redistributions in binary form must reproduce at minimum a disclaimer
	18	* substantially similar to the "NO WARRANTY" disclaimer below
	19	* ("Disclaimer") and any redistribution must be conditioned upon
	20	* including a substantially similar Disclaimer requirement for further
	21	* binary redistribution.
	22	* 3. Neither the names of the above-listed copyright holders nor the names
	23	* of any contributors may be used to endorse or promote products derived
	24	* from this software without specific prior written permission.
	25	*
	26	* Alternatively, this software may be distributed under the terms of the
	27	* GNU General Public License ("GPL") version 2 as published by the Free
	28	* Software Foundation.
	29	*
	30	* NO WARRANTY
	31	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	32	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	33	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
	34	* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
	35	* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	36	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	37	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	38	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
	39	* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
	40	* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
	41	* POSSIBILITY OF SUCH DAMAGES.
	42	*/
	43
1da177e4	44	#include <acpi/acpi.h>
50df4d8b	45	#include <acpi/accommon.h>
1da177e4 LT	46	#include <acpi/acresrc.h>
	47
	48	#define _COMPONENT ACPI_RESOURCES
4be44fcd	49	ACPI_MODULE_NAME("rsmisc")
0897831b BM	50	#define INIT_RESOURCE_TYPE(i) i->resource_offset
	51	#define INIT_RESOURCE_LENGTH(i) i->aml_offset
	52	#define INIT_TABLE_LENGTH(i) i->value
	53	#define COMPARE_OPCODE(i) i->resource_offset
	54	#define COMPARE_TARGET(i) i->aml_offset
	55	#define COMPARE_VALUE(i) i->value
bda663d3 RM	56	/*******************************************************************************
bda663d3 RM	57	*
0897831b	58	* FUNCTION: acpi_rs_convert_aml_to_resource
bda663d3	59	*
50eca3eb BM	60	* PARAMETERS: Resource - Pointer to the resource descriptor
50eca3eb BM	61	* Aml - Where the AML descriptor is returned
0897831b	62	* Info - Pointer to appropriate conversion table
bda663d3 RM	63	*
	64	* RETURN: Status
	65	*
0897831b BM	66	* DESCRIPTION: Convert an external AML resource descriptor to the corresponding
0897831b BM	67	* internal resource descriptor
1da177e4 LT	68	*
1da177e4 LT	69	******************************************************************************/
1da177e4	70	acpi_status
0897831b BM	71	acpi_rs_convert_aml_to_resource(struct acpi_resource *resource,
	72	union aml_resource *aml,
	73	struct acpi_rsconvert_info *info)
1da177e4	74	{
0897831b BM	75	acpi_rs_length aml_resource_length;
	76	void *source;
	77	void *destination;
	78	char *target;
	79	u8 count;
	80	u8 flags_mode = FALSE;
	81	u16 item_count = 0;
	82	u16 temp16 = 0;
	83
b229cf92	84	ACPI_FUNCTION_TRACE(rs_convert_aml_to_resource);
0897831b	85
67a119f9	86	if (((acpi_size) resource) & 0x3) {
52fc0b02	87
b8e4d893 BM	88	/* Each internal resource struct is expected to be 32-bit aligned */
	89
	90	ACPI_WARNING((AE_INFO,
	91	"Misaligned resource pointer (get): %p Type %2.2X Len %X",
	92	resource, resource->type, resource->length));
0897831b	93	}
44f6c012	94
0897831b	95	/* Extract the resource Length field (does not include header length) */
1da177e4	96
0897831b	97	aml_resource_length = acpi_ut_get_resource_length(aml);
44f6c012	98
0897831b BM	99	/*
	100	* First table entry must be ACPI_RSC_INITxxx and must contain the
	101	* table length (# of table entries)
	102	*/
	103	count = INIT_TABLE_LENGTH(info);
	104
	105	while (count) {
	106	/*
	107	* Source is the external AML byte stream buffer,
	108	* destination is the internal resource descriptor
	109	*/
c51a4de8 BM	110	source = ACPI_ADD_PTR(void, aml, info->aml_offset);
	111	destination =
	112	ACPI_ADD_PTR(void, resource, info->resource_offset);
0897831b BM	113
	114	switch (info->opcode) {
	115	case ACPI_RSC_INITGET:
	116	/*
	117	* Get the resource type and the initial (minimum) length
	118	*/
	119	ACPI_MEMSET(resource, 0, INIT_RESOURCE_LENGTH(info));
	120	resource->type = INIT_RESOURCE_TYPE(info);
	121	resource->length = INIT_RESOURCE_LENGTH(info);
	122	break;
	123
	124	case ACPI_RSC_INITSET:
	125	break;
	126
	127	case ACPI_RSC_FLAGINIT:
	128
	129	flags_mode = TRUE;
	130	break;
	131
	132	case ACPI_RSC_1BITFLAG:
	133	/*
	134	* Mask and shift the flag bit
	135	*/
c51a4de8 BM	136	ACPI_SET8(destination) = (u8)
c51a4de8 BM	137	((ACPI_GET8(source) >> info->value) & 0x01);
0897831b BM	138	break;
	139
	140	case ACPI_RSC_2BITFLAG:
	141	/*
	142	* Mask and shift the flag bits
	143	*/
c51a4de8 BM	144	ACPI_SET8(destination) = (u8)
c51a4de8 BM	145	((ACPI_GET8(source) >> info->value) & 0x03);
0897831b BM	146	break;
	147
	148	case ACPI_RSC_COUNT:
	149
c51a4de8 BM	150	item_count = ACPI_GET8(source);
c51a4de8 BM	151	ACPI_SET8(destination) = (u8) item_count;
0897831b BM	152
	153	resource->length = resource->length +
	154	(info->value * (item_count - 1));
	155	break;
	156
	157	case ACPI_RSC_COUNT16:
	158
	159	item_count = aml_resource_length;
c51a4de8	160	ACPI_SET16(destination) = item_count;
0897831b BM	161
	162	resource->length = resource->length +
	163	(info->value * (item_count - 1));
	164	break;
	165
	166	case ACPI_RSC_LENGTH:
	167
	168	resource->length = resource->length + info->value;
	169	break;
	170
	171	case ACPI_RSC_MOVE8:
	172	case ACPI_RSC_MOVE16:
	173	case ACPI_RSC_MOVE32:
	174	case ACPI_RSC_MOVE64:
	175	/*
	176	* Raw data move. Use the Info value field unless item_count has
	177	* been previously initialized via a COUNT opcode
	178	*/
	179	if (info->value) {
	180	item_count = info->value;
	181	}
	182	acpi_rs_move_data(destination, source, item_count,
	183	info->opcode);
	184	break;
	185
	186	case ACPI_RSC_SET8:
	187
	188	ACPI_MEMSET(destination, info->aml_offset, info->value);
	189	break;
	190
	191	case ACPI_RSC_DATA8:
	192
c51a4de8 BM	193	target = ACPI_ADD_PTR(char, resource, info->value);
c51a4de8 BM	194	ACPI_MEMCPY(destination, source, ACPI_GET16(target));
0897831b BM	195	break;
	196
	197	case ACPI_RSC_ADDRESS:
	198	/*
	199	* Common handler for address descriptor flags
	200	*/
	201	if (!acpi_rs_get_address_common(resource, aml)) {
	202	return_ACPI_STATUS
	203	(AE_AML_INVALID_RESOURCE_TYPE);
	204	}
	205	break;
	206
	207	case ACPI_RSC_SOURCE:
	208	/*
	209	* Optional resource_source (Index and String)
	210	*/
	211	resource->length +=
	212	acpi_rs_get_resource_source(aml_resource_length,
	213	info->value,
	214	destination, aml, NULL);
	215	break;
	216
	217	case ACPI_RSC_SOURCEX:
	218	/*
	219	* Optional resource_source (Index and String). This is the more
	220	* complicated case used by the Interrupt() macro
	221	*/
	222	target =
c51a4de8 BM	223	ACPI_ADD_PTR(char, resource,
c51a4de8 BM	224	info->aml_offset + (item_count * 4));
0897831b BM	225
	226	resource->length +=
	227	acpi_rs_get_resource_source(aml_resource_length,
	228	(acpi_rs_length) (((item_count - 1) * sizeof(u32)) + info->value), destination, aml, target);
	229	break;
	230
	231	case ACPI_RSC_BITMASK:
	232	/*
	233	* 8-bit encoded bitmask (DMA macro)
	234	*/
	235	item_count =
c51a4de8	236	acpi_rs_decode_bitmask(ACPI_GET8(source),
0897831b BM	237	destination);
0897831b BM	238	if (item_count) {
c51a4de8	239	resource->length += (item_count - 1);
0897831b BM	240	}
0897831b BM	241
c51a4de8 BM	242	target = ACPI_ADD_PTR(char, resource, info->value);
c51a4de8 BM	243	ACPI_SET8(target) = (u8) item_count;
0897831b BM	244	break;
	245
	246	case ACPI_RSC_BITMASK16:
	247	/*
	248	* 16-bit encoded bitmask (IRQ macro)
	249	*/
	250	ACPI_MOVE_16_TO_16(&temp16, source);
	251
	252	item_count =
	253	acpi_rs_decode_bitmask(temp16, destination);
	254	if (item_count) {
c51a4de8	255	resource->length += (item_count - 1);
0897831b BM	256	}
0897831b BM	257
c51a4de8 BM	258	target = ACPI_ADD_PTR(char, resource, info->value);
c51a4de8 BM	259	ACPI_SET8(target) = (u8) item_count;
0897831b BM	260	break;
	261
	262	case ACPI_RSC_EXIT_NE:
	263	/*
	264	* Control - Exit conversion if not equal
	265	*/
	266	switch (info->resource_offset) {
	267	case ACPI_RSC_COMPARE_AML_LENGTH:
	268	if (aml_resource_length != info->value) {
	269	goto exit;
	270	}
	271	break;
	272
	273	case ACPI_RSC_COMPARE_VALUE:
c51a4de8	274	if (ACPI_GET8(source) != info->value) {
0897831b BM	275	goto exit;
	276	}
	277	break;
	278
	279	default:
b8e4d893 BM	280
	281	ACPI_ERROR((AE_INFO,
	282	"Invalid conversion sub-opcode"));
0897831b BM	283	return_ACPI_STATUS(AE_BAD_PARAMETER);
	284	}
	285	break;
	286
	287	default:
	288
b8e4d893	289	ACPI_ERROR((AE_INFO, "Invalid conversion opcode"));
0897831b BM	290	return_ACPI_STATUS(AE_BAD_PARAMETER);
0897831b BM	291	}
1da177e4	292
0897831b BM	293	count--;
0897831b BM	294	info++;
50eca3eb	295	}
44f6c012	296
0897831b BM	297	exit:
0897831b BM	298	if (!flags_mode) {
52fc0b02	299
ea936b78	300	/* Round the resource struct length up to the next boundary (32 or 64) */
44f6c012	301
52fc0b02	302	resource->length =
ea936b78	303	(u32) ACPI_ROUND_UP_TO_NATIVE_WORD(resource->length);
0897831b	304	}
4be44fcd	305	return_ACPI_STATUS(AE_OK);
1da177e4 LT	306	}
1da177e4 LT	307
1da177e4 LT	308	/*******************************************************************************
1da177e4 LT	309	*
0897831b	310	* FUNCTION: acpi_rs_convert_resource_to_aml
1da177e4	311	*
50eca3eb BM	312	* PARAMETERS: Resource - Pointer to the resource descriptor
50eca3eb BM	313	* Aml - Where the AML descriptor is returned
0897831b	314	* Info - Pointer to appropriate conversion table
1da177e4 LT	315	*
	316	* RETURN: Status
	317	*
50eca3eb BM	318	* DESCRIPTION: Convert an internal resource descriptor to the corresponding
50eca3eb BM	319	* external AML resource descriptor.
1da177e4 LT	320	*
	321	******************************************************************************/
	322
	323	acpi_status
0897831b BM	324	acpi_rs_convert_resource_to_aml(struct acpi_resource *resource,
	325	union aml_resource *aml,
	326	struct acpi_rsconvert_info *info)
1da177e4	327	{
0897831b BM	328	void *source = NULL;
	329	void *destination;
	330	acpi_rsdesc_size aml_length = 0;
	331	u8 count;
	332	u16 temp16 = 0;
	333	u16 item_count = 0;
1da177e4	334
b229cf92	335	ACPI_FUNCTION_TRACE(rs_convert_resource_to_aml);
50eca3eb	336
0897831b BM	337	/*
	338	* First table entry must be ACPI_RSC_INITxxx and must contain the
	339	* table length (# of table entries)
	340	*/
	341	count = INIT_TABLE_LENGTH(info);
	342
	343	while (count) {
	344	/*
	345	* Source is the internal resource descriptor,
	346	* destination is the external AML byte stream buffer
	347	*/
c51a4de8 BM	348	source = ACPI_ADD_PTR(void, resource, info->resource_offset);
c51a4de8 BM	349	destination = ACPI_ADD_PTR(void, aml, info->aml_offset);
0897831b BM	350
	351	switch (info->opcode) {
	352	case ACPI_RSC_INITSET:
	353
	354	ACPI_MEMSET(aml, 0, INIT_RESOURCE_LENGTH(info));
	355	aml_length = INIT_RESOURCE_LENGTH(info);
	356	acpi_rs_set_resource_header(INIT_RESOURCE_TYPE(info),
	357	aml_length, aml);
	358	break;
	359
	360	case ACPI_RSC_INITGET:
	361	break;
	362
	363	case ACPI_RSC_FLAGINIT:
	364	/*
	365	* Clear the flag byte
	366	*/
c51a4de8	367	ACPI_SET8(destination) = 0;
0897831b BM	368	break;
	369
	370	case ACPI_RSC_1BITFLAG:
	371	/*
	372	* Mask and shift the flag bit
	373	*/
c51a4de8 BM	374	ACPI_SET8(destination) \|= (u8)
c51a4de8 BM	375	((ACPI_GET8(source) & 0x01) << info->value);
0897831b BM	376	break;
	377
	378	case ACPI_RSC_2BITFLAG:
	379	/*
	380	* Mask and shift the flag bits
	381	*/
c51a4de8 BM	382	ACPI_SET8(destination) \|= (u8)
c51a4de8 BM	383	((ACPI_GET8(source) & 0x03) << info->value);
0897831b BM	384	break;
	385
	386	case ACPI_RSC_COUNT:
	387
c51a4de8 BM	388	item_count = ACPI_GET8(source);
c51a4de8 BM	389	ACPI_SET8(destination) = (u8) item_count;
0897831b	390
c51a4de8 BM	391	aml_length =
	392	(u16) (aml_length +
	393	(info->value * (item_count - 1)));
0897831b BM	394	break;
	395
	396	case ACPI_RSC_COUNT16:
	397
c51a4de8	398	item_count = ACPI_GET16(source);
0897831b BM	399	aml_length = (u16) (aml_length + item_count);
	400	acpi_rs_set_resource_length(aml_length, aml);
	401	break;
	402
	403	case ACPI_RSC_LENGTH:
	404
	405	acpi_rs_set_resource_length(info->value, aml);
	406	break;
	407
	408	case ACPI_RSC_MOVE8:
	409	case ACPI_RSC_MOVE16:
	410	case ACPI_RSC_MOVE32:
	411	case ACPI_RSC_MOVE64:
	412
	413	if (info->value) {
	414	item_count = info->value;
	415	}
	416	acpi_rs_move_data(destination, source, item_count,
	417	info->opcode);
	418	break;
	419
	420	case ACPI_RSC_ADDRESS:
	421
	422	/* Set the Resource Type, General Flags, and Type-Specific Flags */
	423
	424	acpi_rs_set_address_common(aml, resource);
	425	break;
	426
	427	case ACPI_RSC_SOURCEX:
	428	/*
	429	* Optional resource_source (Index and String)
	430	*/
	431	aml_length =
fd350943	432	acpi_rs_set_resource_source(aml, (acpi_rs_length)
0897831b BM	433	aml_length, source);
	434	acpi_rs_set_resource_length(aml_length, aml);
	435	break;
	436
	437	case ACPI_RSC_SOURCE:
	438	/*
	439	* Optional resource_source (Index and String). This is the more
	440	* complicated case used by the Interrupt() macro
	441	*/
	442	aml_length =
	443	acpi_rs_set_resource_source(aml, info->value,
	444	source);
	445	acpi_rs_set_resource_length(aml_length, aml);
	446	break;
	447
	448	case ACPI_RSC_BITMASK:
	449	/*
	450	* 8-bit encoded bitmask (DMA macro)
	451	*/
c51a4de8	452	ACPI_SET8(destination) = (u8)
0897831b	453	acpi_rs_encode_bitmask(source,
c51a4de8 BM	454	*ACPI_ADD_PTR(u8, resource,
c51a4de8 BM	455	info->value));
0897831b BM	456	break;
	457
	458	case ACPI_RSC_BITMASK16:
	459	/*
	460	* 16-bit encoded bitmask (IRQ macro)
	461	*/
c51a4de8 BM	462	temp16 = acpi_rs_encode_bitmask(source,
	463	*ACPI_ADD_PTR(u8,
	464	resource,
	465	info->
	466	value));
0897831b BM	467	ACPI_MOVE_16_TO_16(destination, &temp16);
	468	break;
	469
	470	case ACPI_RSC_EXIT_LE:
	471	/*
	472	* Control - Exit conversion if less than or equal
	473	*/
	474	if (item_count <= info->value) {
	475	goto exit;
	476	}
	477	break;
	478
	479	case ACPI_RSC_EXIT_NE:
	480	/*
	481	* Control - Exit conversion if not equal
	482	*/
	483	switch (COMPARE_OPCODE(info)) {
	484	case ACPI_RSC_COMPARE_VALUE:
c51a4de8 BM	485
	486	if (*ACPI_ADD_PTR(u8, resource,
	487	COMPARE_TARGET(info)) !=
0897831b BM	488	COMPARE_VALUE(info)) {
	489	goto exit;
	490	}
	491	break;
	492
	493	default:
b8e4d893 BM	494
	495	ACPI_ERROR((AE_INFO,
	496	"Invalid conversion sub-opcode"));
0897831b BM	497	return_ACPI_STATUS(AE_BAD_PARAMETER);
	498	}
	499	break;
	500
1d5b285d BM	501	case ACPI_RSC_EXIT_EQ:
	502	/*
	503	* Control - Exit conversion if equal
	504	*/
	505	if (*ACPI_ADD_PTR(u8, resource,
	506	COMPARE_TARGET(info)) ==
	507	COMPARE_VALUE(info)) {
	508	goto exit;
	509	}
	510	break;
	511
0897831b BM	512	default:
0897831b BM	513
b8e4d893	514	ACPI_ERROR((AE_INFO, "Invalid conversion opcode"));
0897831b	515	return_ACPI_STATUS(AE_BAD_PARAMETER);
50eca3eb	516	}
1da177e4	517
0897831b BM	518	count--;
0897831b BM	519	info++;
1da177e4 LT	520	}
1da177e4 LT	521
0897831b	522	exit:
4be44fcd	523	return_ACPI_STATUS(AE_OK);
1da177e4 LT	524	}
1da177e4 LT	525
0897831b BM	526	#if 0
0897831b BM	527	/* Previous resource validations */
44f6c012	528
0897831b BM	529	if (aml->ext_address64.revision_iD != AML_RESOURCE_EXTENDED_ADDRESS_REVISION) {
0897831b BM	530	return_ACPI_STATUS(AE_SUPPORT);
1da177e4 LT	531	}
1da177e4 LT	532
0897831b BM	533	if (resource->data.start_dpf.performance_robustness >= 3) {
0897831b BM	534	return_ACPI_STATUS(AE_AML_BAD_RESOURCE_VALUE);
1da177e4 LT	535	}
1da177e4 LT	536
0897831b BM	537	if (((aml->irq.flags & 0x09) == 0x00) \|\| ((aml->irq.flags & 0x09) == 0x09)) {
	538	/*
	539	* Only [active_high, edge_sensitive] or [active_low, level_sensitive]
	540	* polarity/trigger interrupts are allowed (ACPI spec, section
	541	* "IRQ Format"), so 0x00 and 0x09 are illegal.
	542	*/
b8e4d893 BM	543	ACPI_ERROR((AE_INFO,
	544	"Invalid interrupt polarity/trigger in resource list, %X",
	545	aml->irq.flags));
0897831b	546	return_ACPI_STATUS(AE_BAD_DATA);
1da177e4 LT	547	}
1da177e4 LT	548
0897831b BM	549	resource->data.extended_irq.interrupt_count = temp8;
0897831b BM	550	if (temp8 < 1) {
52fc0b02	551
0897831b	552	/* Must have at least one IRQ */
44f6c012	553
0897831b	554	return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH);
1da177e4 LT	555	}
1da177e4 LT	556
0897831b	557	if (resource->data.dma.transfer == 0x03) {
b8e4d893	558	ACPI_ERROR((AE_INFO, "Invalid DMA.Transfer preference (3)"));
0897831b	559	return_ACPI_STATUS(AE_BAD_DATA);
1da177e4	560	}
0897831b	561	#endif