[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / acpi / resources / rsmisc.c

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

/*
 * Copyright (C) 2000 - 2006, R. Byron Moore
 * 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/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_get_resource");

	if (((acpi_native_uint) 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 32-bit boundary */

		resource->length = ACPI_ROUND_UP_to_32_bITS(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;

		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	/*
4a90c7e8	8	* Copyright (C) 2000 - 2006, R. Byron Moore
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 LT	44	#include <acpi/acpi.h>
	45	#include <acpi/acresrc.h>
	46
	47	#define _COMPONENT ACPI_RESOURCES
4be44fcd	48	ACPI_MODULE_NAME("rsmisc")
1da177e4	49
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
	84	ACPI_FUNCTION_TRACE("rs_get_resource");
	85
	86	if (((acpi_native_uint) resource) & 0x3) {
b8e4d893 BM	87	/* Each internal resource struct is expected to be 32-bit aligned */
	88
	89	ACPI_WARNING((AE_INFO,
	90	"Misaligned resource pointer (get): %p Type %2.2X Len %X",
	91	resource, resource->type, resource->length));
0897831b	92	}
44f6c012	93
0897831b	94	/* Extract the resource Length field (does not include header length) */
1da177e4	95
0897831b	96	aml_resource_length = acpi_ut_get_resource_length(aml);
44f6c012	97
0897831b BM	98	/*
	99	* First table entry must be ACPI_RSC_INITxxx and must contain the
	100	* table length (# of table entries)
	101	*/
	102	count = INIT_TABLE_LENGTH(info);
	103
	104	while (count) {
	105	/*
	106	* Source is the external AML byte stream buffer,
	107	* destination is the internal resource descriptor
	108	*/
c51a4de8 BM	109	source = ACPI_ADD_PTR(void, aml, info->aml_offset);
	110	destination =
	111	ACPI_ADD_PTR(void, resource, info->resource_offset);
0897831b BM	112
	113	switch (info->opcode) {
	114	case ACPI_RSC_INITGET:
	115	/*
	116	* Get the resource type and the initial (minimum) length
	117	*/
	118	ACPI_MEMSET(resource, 0, INIT_RESOURCE_LENGTH(info));
	119	resource->type = INIT_RESOURCE_TYPE(info);
	120	resource->length = INIT_RESOURCE_LENGTH(info);
	121	break;
	122
	123	case ACPI_RSC_INITSET:
	124	break;
	125
	126	case ACPI_RSC_FLAGINIT:
	127
	128	flags_mode = TRUE;
	129	break;
	130
	131	case ACPI_RSC_1BITFLAG:
	132	/*
	133	* Mask and shift the flag bit
	134	*/
c51a4de8 BM	135	ACPI_SET8(destination) = (u8)
c51a4de8 BM	136	((ACPI_GET8(source) >> info->value) & 0x01);
0897831b BM	137	break;
	138
	139	case ACPI_RSC_2BITFLAG:
	140	/*
	141	* Mask and shift the flag bits
	142	*/
c51a4de8 BM	143	ACPI_SET8(destination) = (u8)
c51a4de8 BM	144	((ACPI_GET8(source) >> info->value) & 0x03);
0897831b BM	145	break;
	146
	147	case ACPI_RSC_COUNT:
	148
c51a4de8 BM	149	item_count = ACPI_GET8(source);
c51a4de8 BM	150	ACPI_SET8(destination) = (u8) item_count;
0897831b BM	151
	152	resource->length = resource->length +
	153	(info->value * (item_count - 1));
	154	break;
	155
	156	case ACPI_RSC_COUNT16:
	157
	158	item_count = aml_resource_length;
c51a4de8	159	ACPI_SET16(destination) = item_count;
0897831b BM	160
	161	resource->length = resource->length +
	162	(info->value * (item_count - 1));
	163	break;
	164
	165	case ACPI_RSC_LENGTH:
	166
	167	resource->length = resource->length + info->value;
	168	break;
	169
	170	case ACPI_RSC_MOVE8:
	171	case ACPI_RSC_MOVE16:
	172	case ACPI_RSC_MOVE32:
	173	case ACPI_RSC_MOVE64:
	174	/*
	175	* Raw data move. Use the Info value field unless item_count has
	176	* been previously initialized via a COUNT opcode
	177	*/
	178	if (info->value) {
	179	item_count = info->value;
	180	}
	181	acpi_rs_move_data(destination, source, item_count,
	182	info->opcode);
	183	break;
	184
	185	case ACPI_RSC_SET8:
	186
	187	ACPI_MEMSET(destination, info->aml_offset, info->value);
	188	break;
	189
	190	case ACPI_RSC_DATA8:
	191
c51a4de8 BM	192	target = ACPI_ADD_PTR(char, resource, info->value);
c51a4de8 BM	193	ACPI_MEMCPY(destination, source, ACPI_GET16(target));
0897831b BM	194	break;
	195
	196	case ACPI_RSC_ADDRESS:
	197	/*
	198	* Common handler for address descriptor flags
	199	*/
	200	if (!acpi_rs_get_address_common(resource, aml)) {
	201	return_ACPI_STATUS
	202	(AE_AML_INVALID_RESOURCE_TYPE);
	203	}
	204	break;
	205
	206	case ACPI_RSC_SOURCE:
	207	/*
	208	* Optional resource_source (Index and String)
	209	*/
	210	resource->length +=
	211	acpi_rs_get_resource_source(aml_resource_length,
	212	info->value,
	213	destination, aml, NULL);
	214	break;
	215
	216	case ACPI_RSC_SOURCEX:
	217	/*
	218	* Optional resource_source (Index and String). This is the more
	219	* complicated case used by the Interrupt() macro
	220	*/
	221	target =
c51a4de8 BM	222	ACPI_ADD_PTR(char, resource,
c51a4de8 BM	223	info->aml_offset + (item_count * 4));
0897831b BM	224
	225	resource->length +=
	226	acpi_rs_get_resource_source(aml_resource_length,
	227	(acpi_rs_length) (((item_count - 1) * sizeof(u32)) + info->value), destination, aml, target);
	228	break;
	229
	230	case ACPI_RSC_BITMASK:
	231	/*
	232	* 8-bit encoded bitmask (DMA macro)
	233	*/
	234	item_count =
c51a4de8	235	acpi_rs_decode_bitmask(ACPI_GET8(source),
0897831b BM	236	destination);
0897831b BM	237	if (item_count) {
c51a4de8	238	resource->length += (item_count - 1);
0897831b BM	239	}
0897831b BM	240
c51a4de8 BM	241	target = ACPI_ADD_PTR(char, resource, info->value);
c51a4de8 BM	242	ACPI_SET8(target) = (u8) item_count;
0897831b BM	243	break;
	244
	245	case ACPI_RSC_BITMASK16:
	246	/*
	247	* 16-bit encoded bitmask (IRQ macro)
	248	*/
	249	ACPI_MOVE_16_TO_16(&temp16, source);
	250
	251	item_count =
	252	acpi_rs_decode_bitmask(temp16, destination);
	253	if (item_count) {
c51a4de8	254	resource->length += (item_count - 1);
0897831b BM	255	}
0897831b BM	256
c51a4de8 BM	257	target = ACPI_ADD_PTR(char, resource, info->value);
c51a4de8 BM	258	ACPI_SET8(target) = (u8) item_count;
0897831b BM	259	break;
	260
	261	case ACPI_RSC_EXIT_NE:
	262	/*
	263	* Control - Exit conversion if not equal
	264	*/
	265	switch (info->resource_offset) {
	266	case ACPI_RSC_COMPARE_AML_LENGTH:
	267	if (aml_resource_length != info->value) {
	268	goto exit;
	269	}
	270	break;
	271
	272	case ACPI_RSC_COMPARE_VALUE:
c51a4de8	273	if (ACPI_GET8(source) != info->value) {
0897831b BM	274	goto exit;
	275	}
	276	break;
	277
	278	default:
b8e4d893 BM	279
	280	ACPI_ERROR((AE_INFO,
	281	"Invalid conversion sub-opcode"));
0897831b BM	282	return_ACPI_STATUS(AE_BAD_PARAMETER);
	283	}
	284	break;
	285
	286	default:
	287
b8e4d893	288	ACPI_ERROR((AE_INFO, "Invalid conversion opcode"));
0897831b BM	289	return_ACPI_STATUS(AE_BAD_PARAMETER);
0897831b BM	290	}
1da177e4	291
0897831b BM	292	count--;
0897831b BM	293	info++;
50eca3eb	294	}
44f6c012	295
0897831b BM	296	exit:
	297	if (!flags_mode) {
	298	/* Round the resource struct length up to the next 32-bit boundary */
44f6c012	299
0897831b BM	300	resource->length = ACPI_ROUND_UP_to_32_bITS(resource->length);
0897831b BM	301	}
4be44fcd	302	return_ACPI_STATUS(AE_OK);
1da177e4 LT	303	}
1da177e4 LT	304
1da177e4 LT	305	/*******************************************************************************
1da177e4 LT	306	*
0897831b	307	* FUNCTION: acpi_rs_convert_resource_to_aml
1da177e4	308	*
50eca3eb BM	309	* PARAMETERS: Resource - Pointer to the resource descriptor
50eca3eb BM	310	* Aml - Where the AML descriptor is returned
0897831b	311	* Info - Pointer to appropriate conversion table
1da177e4 LT	312	*
	313	* RETURN: Status
	314	*
50eca3eb BM	315	* DESCRIPTION: Convert an internal resource descriptor to the corresponding
50eca3eb BM	316	* external AML resource descriptor.
1da177e4 LT	317	*
	318	******************************************************************************/
	319
	320	acpi_status
0897831b BM	321	acpi_rs_convert_resource_to_aml(struct acpi_resource *resource,
	322	union aml_resource *aml,
	323	struct acpi_rsconvert_info *info)
1da177e4	324	{
0897831b BM	325	void *source = NULL;
	326	void *destination;
	327	acpi_rsdesc_size aml_length = 0;
	328	u8 count;
	329	u16 temp16 = 0;
	330	u16 item_count = 0;
1da177e4	331
0897831b	332	ACPI_FUNCTION_TRACE("rs_convert_resource_to_aml");
50eca3eb	333
0897831b BM	334	/*
	335	* First table entry must be ACPI_RSC_INITxxx and must contain the
	336	* table length (# of table entries)
	337	*/
	338	count = INIT_TABLE_LENGTH(info);
	339
	340	while (count) {
	341	/*
	342	* Source is the internal resource descriptor,
	343	* destination is the external AML byte stream buffer
	344	*/
c51a4de8 BM	345	source = ACPI_ADD_PTR(void, resource, info->resource_offset);
c51a4de8 BM	346	destination = ACPI_ADD_PTR(void, aml, info->aml_offset);
0897831b BM	347
	348	switch (info->opcode) {
	349	case ACPI_RSC_INITSET:
	350
	351	ACPI_MEMSET(aml, 0, INIT_RESOURCE_LENGTH(info));
	352	aml_length = INIT_RESOURCE_LENGTH(info);
	353	acpi_rs_set_resource_header(INIT_RESOURCE_TYPE(info),
	354	aml_length, aml);
	355	break;
	356
	357	case ACPI_RSC_INITGET:
	358	break;
	359
	360	case ACPI_RSC_FLAGINIT:
	361	/*
	362	* Clear the flag byte
	363	*/
c51a4de8	364	ACPI_SET8(destination) = 0;
0897831b BM	365	break;
	366
	367	case ACPI_RSC_1BITFLAG:
	368	/*
	369	* Mask and shift the flag bit
	370	*/
c51a4de8 BM	371	ACPI_SET8(destination) \|= (u8)
c51a4de8 BM	372	((ACPI_GET8(source) & 0x01) << info->value);
0897831b BM	373	break;
	374
	375	case ACPI_RSC_2BITFLAG:
	376	/*
	377	* Mask and shift the flag bits
	378	*/
c51a4de8 BM	379	ACPI_SET8(destination) \|= (u8)
c51a4de8 BM	380	((ACPI_GET8(source) & 0x03) << info->value);
0897831b BM	381	break;
	382
	383	case ACPI_RSC_COUNT:
	384
c51a4de8 BM	385	item_count = ACPI_GET8(source);
c51a4de8 BM	386	ACPI_SET8(destination) = (u8) item_count;
0897831b	387
c51a4de8 BM	388	aml_length =
	389	(u16) (aml_length +
	390	(info->value * (item_count - 1)));
0897831b BM	391	break;
	392
	393	case ACPI_RSC_COUNT16:
	394
c51a4de8	395	item_count = ACPI_GET16(source);
0897831b BM	396	aml_length = (u16) (aml_length + item_count);
	397	acpi_rs_set_resource_length(aml_length, aml);
	398	break;
	399
	400	case ACPI_RSC_LENGTH:
	401
	402	acpi_rs_set_resource_length(info->value, aml);
	403	break;
	404
	405	case ACPI_RSC_MOVE8:
	406	case ACPI_RSC_MOVE16:
	407	case ACPI_RSC_MOVE32:
	408	case ACPI_RSC_MOVE64:
	409
	410	if (info->value) {
	411	item_count = info->value;
	412	}
	413	acpi_rs_move_data(destination, source, item_count,
	414	info->opcode);
	415	break;
	416
	417	case ACPI_RSC_ADDRESS:
	418
	419	/* Set the Resource Type, General Flags, and Type-Specific Flags */
	420
	421	acpi_rs_set_address_common(aml, resource);
	422	break;
	423
	424	case ACPI_RSC_SOURCEX:
	425	/*
	426	* Optional resource_source (Index and String)
	427	*/
	428	aml_length =
	429	acpi_rs_set_resource_source(aml,
	430	(acpi_rs_length)
	431	aml_length, source);
	432	acpi_rs_set_resource_length(aml_length, aml);
	433	break;
	434
	435	case ACPI_RSC_SOURCE:
	436	/*
	437	* Optional resource_source (Index and String). This is the more
	438	* complicated case used by the Interrupt() macro
	439	*/
	440	aml_length =
	441	acpi_rs_set_resource_source(aml, info->value,
	442	source);
	443	acpi_rs_set_resource_length(aml_length, aml);
	444	break;
	445
	446	case ACPI_RSC_BITMASK:
	447	/*
	448	* 8-bit encoded bitmask (DMA macro)
	449	*/
c51a4de8	450	ACPI_SET8(destination) = (u8)
0897831b	451	acpi_rs_encode_bitmask(source,
c51a4de8 BM	452	*ACPI_ADD_PTR(u8, resource,
c51a4de8 BM	453	info->value));
0897831b BM	454	break;
	455
	456	case ACPI_RSC_BITMASK16:
	457	/*
	458	* 16-bit encoded bitmask (IRQ macro)
	459	*/
c51a4de8 BM	460	temp16 = acpi_rs_encode_bitmask(source,
	461	*ACPI_ADD_PTR(u8,
	462	resource,
	463	info->
	464	value));
0897831b BM	465	ACPI_MOVE_16_TO_16(destination, &temp16);
	466	break;
	467
	468	case ACPI_RSC_EXIT_LE:
	469	/*
	470	* Control - Exit conversion if less than or equal
	471	*/
	472	if (item_count <= info->value) {
	473	goto exit;
	474	}
	475	break;
	476
	477	case ACPI_RSC_EXIT_NE:
	478	/*
	479	* Control - Exit conversion if not equal
	480	*/
	481	switch (COMPARE_OPCODE(info)) {
	482	case ACPI_RSC_COMPARE_VALUE:
c51a4de8 BM	483
	484	if (*ACPI_ADD_PTR(u8, resource,
	485	COMPARE_TARGET(info)) !=
0897831b BM	486	COMPARE_VALUE(info)) {
	487	goto exit;
	488	}
	489	break;
	490
	491	default:
b8e4d893 BM	492
	493	ACPI_ERROR((AE_INFO,
	494	"Invalid conversion sub-opcode"));
0897831b BM	495	return_ACPI_STATUS(AE_BAD_PARAMETER);
	496	}
	497	break;
	498
	499	default:
	500
b8e4d893	501	ACPI_ERROR((AE_INFO, "Invalid conversion opcode"));
0897831b	502	return_ACPI_STATUS(AE_BAD_PARAMETER);
50eca3eb	503	}
1da177e4	504
0897831b BM	505	count--;
0897831b BM	506	info++;
1da177e4 LT	507	}
1da177e4 LT	508
0897831b	509	exit:
4be44fcd	510	return_ACPI_STATUS(AE_OK);
1da177e4 LT	511	}
1da177e4 LT	512
0897831b BM	513	#if 0
0897831b BM	514	/* Previous resource validations */
44f6c012	515
0897831b BM	516	if (aml->ext_address64.revision_iD != AML_RESOURCE_EXTENDED_ADDRESS_REVISION) {
0897831b BM	517	return_ACPI_STATUS(AE_SUPPORT);
1da177e4 LT	518	}
1da177e4 LT	519
0897831b BM	520	if (resource->data.start_dpf.performance_robustness >= 3) {
0897831b BM	521	return_ACPI_STATUS(AE_AML_BAD_RESOURCE_VALUE);
1da177e4 LT	522	}
1da177e4 LT	523
0897831b BM	524	if (((aml->irq.flags & 0x09) == 0x00) \|\| ((aml->irq.flags & 0x09) == 0x09)) {
	525	/*
	526	* Only [active_high, edge_sensitive] or [active_low, level_sensitive]
	527	* polarity/trigger interrupts are allowed (ACPI spec, section
	528	* "IRQ Format"), so 0x00 and 0x09 are illegal.
	529	*/
b8e4d893 BM	530	ACPI_ERROR((AE_INFO,
	531	"Invalid interrupt polarity/trigger in resource list, %X",
	532	aml->irq.flags));
0897831b	533	return_ACPI_STATUS(AE_BAD_DATA);
1da177e4 LT	534	}
1da177e4 LT	535
0897831b BM	536	resource->data.extended_irq.interrupt_count = temp8;
	537	if (temp8 < 1) {
	538	/* Must have at least one IRQ */
44f6c012	539
0897831b	540	return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH);
1da177e4 LT	541	}
1da177e4 LT	542
0897831b	543	if (resource->data.dma.transfer == 0x03) {
b8e4d893	544	ACPI_ERROR((AE_INFO, "Invalid DMA.Transfer preference (3)"));
0897831b	545	return_ACPI_STATUS(AE_BAD_DATA);
1da177e4	546	}
0897831b	547	#endif