[mirror_ubuntu-artful-kernel.git] / drivers / acpi / resources / rsmisc.c

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

/*
 * Copyright (C) 2000 - 2005, 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) {
		acpi_os_printf
		    ("**** GET: Misaligned resource pointer: %p Type %2.2X Len %X\n",
		     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 = ((u8 *) aml) + info->aml_offset;
		destination = ((u8 *) 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
			 */
			*((u8 *) destination) = (u8)
			    ((*((u8 *) source) >> info->value) & 0x01);
			break;

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

		case ACPI_RSC_COUNT:

			item_count = *((u8 *) source);
			*((u8 *) destination) = (u8) item_count;

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

		case ACPI_RSC_COUNT16:

			item_count = aml_resource_length;
			*((u16 *) 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 = ((char *)resource) + info->value;
			ACPI_MEMCPY(destination, source,
				    *(ACPI_CAST_PTR(u16, 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 =
			    ((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(*((u8 *) source),
						   destination);
			if (item_count) {
				resource->length +=
				    resource->length + (item_count - 1);
			}

			target = ((char *)resource) + info->value;
			*((u8 *) 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 =
				    resource->length + (item_count - 1);
			}

			target = ((char *)resource) + info->value;
			*((u8 *) 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 (*((u8 *) source) != info->value) {
					goto exit;
				}
				break;

			default:
				acpi_os_printf
				    ("*** Invalid conversion sub-opcode\n");
				return_ACPI_STATUS(AE_BAD_PARAMETER);
			}
			break;

		default:

			acpi_os_printf("*** Invalid conversion opcode\n");
			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");

	/* Validate the Resource pointer, must be 32-bit aligned */

	if (((acpi_native_uint) resource) & 0x3) {
		acpi_os_printf
		    ("**** SET: Misaligned resource pointer: %p Type %2.2X Len %X\n",
		     resource, resource->type, resource->length);
	}

	/*
	 * 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 = ((u8 *) resource) + info->resource_offset;
		destination = ((u8 *) 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
			 */
			*((u8 *) destination) = 0;
			break;

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

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

		case ACPI_RSC_COUNT:

			item_count = *((u8 *) source);
			*((u8 *) destination) = (u8) item_count;

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

		case ACPI_RSC_COUNT16:

			item_count = *((u16 *) 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)
			 */
			*((u8 *) destination) = (u8)
			    acpi_rs_encode_bitmask(source,
						   *(((u8 *) resource) +
						     info->value));
			break;

		case ACPI_RSC_BITMASK16:
			/*
			 * 16-bit encoded bitmask (IRQ macro)
			 */
			temp16 =
			    acpi_rs_encode_bitmask(source,
						   *(((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 (*
				    ((u8 *) (((u8 *) resource) +
					     COMPARE_TARGET(info))) !=
				    COMPARE_VALUE(info)) {
					goto exit;
				}
				break;

			default:
				acpi_os_printf
				    ("*** Invalid conversion sub-opcode\n");
				return_ACPI_STATUS(AE_BAD_PARAMETER);
			}
			break;

		default:

			acpi_os_printf("*** Invalid conversion opcode\n");
			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_DEBUG_PRINT((ACPI_DB_ERROR,
			  "Invalid interrupt polarity/trigger in resource list, %X\n",
			  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_DEBUG_PRINT((ACPI_DB_ERROR,
			  "Invalid DMA.Transfer preference (3)\n"));
	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	/*
	8	* Copyright (C) 2000 - 2005, R. Byron Moore
	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) {
	87	acpi_os_printf
	88	("**** GET: Misaligned resource pointer: %p Type %2.2X Len %X\n",
	89	resource, resource->type, resource->length);
	90	}
44f6c012	91
0897831b	92	/* Extract the resource Length field (does not include header length) */
1da177e4	93
0897831b	94	aml_resource_length = acpi_ut_get_resource_length(aml);
44f6c012	95
0897831b BM	96	/*
	97	* First table entry must be ACPI_RSC_INITxxx and must contain the
	98	* table length (# of table entries)
	99	*/
	100	count = INIT_TABLE_LENGTH(info);
	101
	102	while (count) {
	103	/*
	104	* Source is the external AML byte stream buffer,
	105	* destination is the internal resource descriptor
	106	*/
	107	source = ((u8 *) aml) + info->aml_offset;
	108	destination = ((u8 *) resource) + info->resource_offset;
	109
	110	switch (info->opcode) {
	111	case ACPI_RSC_INITGET:
	112	/*
	113	* Get the resource type and the initial (minimum) length
	114	*/
	115	ACPI_MEMSET(resource, 0, INIT_RESOURCE_LENGTH(info));
	116	resource->type = INIT_RESOURCE_TYPE(info);
	117	resource->length = INIT_RESOURCE_LENGTH(info);
	118	break;
	119
	120	case ACPI_RSC_INITSET:
	121	break;
	122
	123	case ACPI_RSC_FLAGINIT:
	124
	125	flags_mode = TRUE;
	126	break;
	127
	128	case ACPI_RSC_1BITFLAG:
	129	/*
	130	* Mask and shift the flag bit
	131	*/
	132	((u8 ) destination) = (u8)
	133	((((u8 ) source) >> info->value) & 0x01);
	134	break;
	135
	136	case ACPI_RSC_2BITFLAG:
	137	/*
	138	* Mask and shift the flag bits
	139	*/
	140	((u8 ) destination) = (u8)
	141	((((u8 ) source) >> info->value) & 0x03);
	142	break;
	143
	144	case ACPI_RSC_COUNT:
	145
	146	item_count = ((u8 ) source);
	147	((u8 ) destination) = (u8) item_count;
	148
	149	resource->length = resource->length +
	150	(info->value * (item_count - 1));
	151	break;
	152
	153	case ACPI_RSC_COUNT16:
	154
	155	item_count = aml_resource_length;
	156	((u16 ) destination) = item_count;
	157
	158	resource->length = resource->length +
	159	(info->value * (item_count - 1));
160	break;
161
162	case ACPI_RSC_LENGTH:
163
164	resource->length = resource->length + info->value;
165	break;
166
167	case ACPI_RSC_MOVE8:
168	case ACPI_RSC_MOVE16:
169	case ACPI_RSC_MOVE32:
170	case ACPI_RSC_MOVE64:
171	/*
172	* Raw data move. Use the Info value field unless item_count has
173	* been previously initialized via a COUNT opcode
174	*/
175	if (info->value) {
176	item_count = info->value;
177	}
178	acpi_rs_move_data(destination, source, item_count,
179	info->opcode);
180	break;
181
182	case ACPI_RSC_SET8:
183
184	ACPI_MEMSET(destination, info->aml_offset, info->value);
185	break;
186
187	case ACPI_RSC_DATA8:
188
189	target = ((char *)resource) + info->value;
190	ACPI_MEMCPY(destination, source,
191	*(ACPI_CAST_PTR(u16, target)));
192	break;
193
194	case ACPI_RSC_ADDRESS:
195	/*
196	* Common handler for address descriptor flags
197	*/
198	if (!acpi_rs_get_address_common(resource, aml)) {
199	return_ACPI_STATUS
200	(AE_AML_INVALID_RESOURCE_TYPE);
201	}
202	break;
203
204	case ACPI_RSC_SOURCE:
205	/*
206	* Optional resource_source (Index and String)
207	*/
208	resource->length +=
209	acpi_rs_get_resource_source(aml_resource_length,
210	info->value,
211	destination, aml, NULL);
212	break;
213
214	case ACPI_RSC_SOURCEX:
215	/*
216	* Optional resource_source (Index and String). This is the more
217	* complicated case used by the Interrupt() macro
218	*/
219	target =
220	((char *)resource) + info->aml_offset +
221	(item_count * 4);
222
223	resource->length +=
224	acpi_rs_get_resource_source(aml_resource_length,
225	(acpi_rs_length) (((item_count - 1) * sizeof(u32)) + info->value), destination, aml, target);
226	break;
227
228	case ACPI_RSC_BITMASK:
229	/*
230	* 8-bit encoded bitmask (DMA macro)
231	*/
232	item_count =
233	acpi_rs_decode_bitmask(((u8 ) source),
234	destination);
235	if (item_count) {
236	resource->length +=
237	resource->length + (item_count - 1);
238	}
239
240	target = ((char *)resource) + info->value;
241	((u8 ) target) = (u8) item_count;
242	break;
243
244	case ACPI_RSC_BITMASK16:
245	/*
246	* 16-bit encoded bitmask (IRQ macro)
247	*/
248	ACPI_MOVE_16_TO_16(&temp16, source);
249
250	item_count =
251	acpi_rs_decode_bitmask(temp16, destination);
252	if (item_count) {
253	resource->length =
254	resource->length + (item_count - 1);
255	}
256
257	target = ((char *)resource) + info->value;
258	((u8 ) target) = (u8) item_count;
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:
273	if (((u8 ) source) != info->value) {
274	goto exit;
275	}
276	break;
277
278	default:
279	acpi_os_printf
280	("*** Invalid conversion sub-opcode\n");
281	return_ACPI_STATUS(AE_BAD_PARAMETER);
282	}
283	break;
284
285	default:
286
287	acpi_os_printf("*** Invalid conversion opcode\n");
288	return_ACPI_STATUS(AE_BAD_PARAMETER);
289	}
1da177e4	290
0897831b BM	291	count--;
0897831b BM	292	info++;
50eca3eb	293	}
44f6c012	294
0897831b BM	295	exit:
	296	if (!flags_mode) {
	297	/* Round the resource struct length up to the next 32-bit boundary */
44f6c012	298
0897831b BM	299	resource->length = ACPI_ROUND_UP_to_32_bITS(resource->length);
0897831b BM	300	}
4be44fcd	301	return_ACPI_STATUS(AE_OK);
1da177e4 LT	302	}
1da177e4 LT	303
1da177e4 LT	304	/*******************************************************************************
1da177e4 LT	305	*
0897831b	306	* FUNCTION: acpi_rs_convert_resource_to_aml
1da177e4	307	*
50eca3eb BM	308	* PARAMETERS: Resource - Pointer to the resource descriptor
50eca3eb BM	309	* Aml - Where the AML descriptor is returned
0897831b	310	* Info - Pointer to appropriate conversion table
1da177e4 LT	311	*
	312	* RETURN: Status
	313	*
50eca3eb BM	314	* DESCRIPTION: Convert an internal resource descriptor to the corresponding
50eca3eb BM	315	* external AML resource descriptor.
1da177e4 LT	316	*
	317	******************************************************************************/
	318
	319	acpi_status
0897831b BM	320	acpi_rs_convert_resource_to_aml(struct acpi_resource *resource,
	321	union aml_resource *aml,
	322	struct acpi_rsconvert_info *info)
1da177e4	323	{
0897831b BM	324	void *source = NULL;
	325	void *destination;
	326	acpi_rsdesc_size aml_length = 0;
	327	u8 count;
	328	u16 temp16 = 0;
	329	u16 item_count = 0;
1da177e4	330
0897831b	331	ACPI_FUNCTION_TRACE("rs_convert_resource_to_aml");
50eca3eb	332
0897831b	333	/* Validate the Resource pointer, must be 32-bit aligned */
50eca3eb	334
0897831b BM	335	if (((acpi_native_uint) resource) & 0x3) {
	336	acpi_os_printf
	337	("**** SET: Misaligned resource pointer: %p Type %2.2X Len %X\n",
	338	resource, resource->type, resource->length);
50eca3eb BM	339	}
50eca3eb BM	340
0897831b BM	341	/*
	342	* First table entry must be ACPI_RSC_INITxxx and must contain the
	343	* table length (# of table entries)
	344	*/
	345	count = INIT_TABLE_LENGTH(info);
	346
	347	while (count) {
	348	/*
	349	* Source is the internal resource descriptor,
	350	* destination is the external AML byte stream buffer
	351	*/
	352	source = ((u8 *) resource) + info->resource_offset;
	353	destination = ((u8 *) aml) + info->aml_offset;
	354
	355	switch (info->opcode) {
	356	case ACPI_RSC_INITSET:
	357
	358	ACPI_MEMSET(aml, 0, INIT_RESOURCE_LENGTH(info));
	359	aml_length = INIT_RESOURCE_LENGTH(info);
	360	acpi_rs_set_resource_header(INIT_RESOURCE_TYPE(info),
	361	aml_length, aml);
	362	break;
	363
	364	case ACPI_RSC_INITGET:
	365	break;
	366
	367	case ACPI_RSC_FLAGINIT:
	368	/*
	369	* Clear the flag byte
	370	*/
	371	((u8 ) destination) = 0;
	372	break;
	373
	374	case ACPI_RSC_1BITFLAG:
	375	/*
	376	* Mask and shift the flag bit
	377	*/
	378	((u8 ) destination) \|= (u8)
	379	((((u8 ) source) & 0x01) << info->value);
	380	break;
	381
	382	case ACPI_RSC_2BITFLAG:
	383	/*
	384	* Mask and shift the flag bits
	385	*/
	386	((u8 ) destination) \|= (u8)
	387	((((u8 ) source) & 0x03) << info->value);
	388	break;
	389
	390	case ACPI_RSC_COUNT:
	391
	392	item_count = ((u8 ) source);
	393	((u8 ) destination) = (u8) item_count;
	394
	395	aml_length = (u16) (aml_length +
	396	(info->value * (item_count - 1)));
	397	break;
	398
	399	case ACPI_RSC_COUNT16:
	400
	401	item_count = ((u16 ) source);
	402	aml_length = (u16) (aml_length + item_count);
	403	acpi_rs_set_resource_length(aml_length, aml);
	404	break;
405
406	case ACPI_RSC_LENGTH:
407
408	acpi_rs_set_resource_length(info->value, aml);
409	break;
410
411	case ACPI_RSC_MOVE8:
412	case ACPI_RSC_MOVE16:
413	case ACPI_RSC_MOVE32:
414	case ACPI_RSC_MOVE64:
415
416	if (info->value) {
417	item_count = info->value;
418	}
419	acpi_rs_move_data(destination, source, item_count,
420	info->opcode);
421	break;
422
423	case ACPI_RSC_ADDRESS:
424
425	/* Set the Resource Type, General Flags, and Type-Specific Flags */
426
427	acpi_rs_set_address_common(aml, resource);
428	break;
429
430	case ACPI_RSC_SOURCEX:
431	/*
432	* Optional resource_source (Index and String)
433	*/
434	aml_length =
435	acpi_rs_set_resource_source(aml,
436	(acpi_rs_length)
437	aml_length, source);
438	acpi_rs_set_resource_length(aml_length, aml);
439	break;
440
441	case ACPI_RSC_SOURCE:
442	/*
443	* Optional resource_source (Index and String). This is the more
444	* complicated case used by the Interrupt() macro
445	*/
446	aml_length =
447	acpi_rs_set_resource_source(aml, info->value,
448	source);
449	acpi_rs_set_resource_length(aml_length, aml);
450	break;
451
452	case ACPI_RSC_BITMASK:
453	/*
454	* 8-bit encoded bitmask (DMA macro)
455	*/
456	((u8 ) destination) = (u8)
457	acpi_rs_encode_bitmask(source,
458	(((u8 ) resource) +
459	info->value));
460	break;
461
462	case ACPI_RSC_BITMASK16:
463	/*
464	* 16-bit encoded bitmask (IRQ macro)
465	*/
466	temp16 =
467	acpi_rs_encode_bitmask(source,
468	(((u8 ) resource) +
469	info->value));
470	ACPI_MOVE_16_TO_16(destination, &temp16);
471	break;
472
473	case ACPI_RSC_EXIT_LE:
474	/*
475	* Control - Exit conversion if less than or equal
476	*/
477	if (item_count <= info->value) {
478	goto exit;
479	}
480	break;
481
482	case ACPI_RSC_EXIT_NE:
483	/*
484	* Control - Exit conversion if not equal
485	*/
486	switch (COMPARE_OPCODE(info)) {
487	case ACPI_RSC_COMPARE_VALUE:
488	if (*
489	((u8 ) (((u8 ) resource) +
490	COMPARE_TARGET(info))) !=
491	COMPARE_VALUE(info)) {
492	goto exit;
493	}
494	break;
495
496	default:
497	acpi_os_printf
498	("*** Invalid conversion sub-opcode\n");
499	return_ACPI_STATUS(AE_BAD_PARAMETER);
500	}
501	break;
502
503	default:
504
505	acpi_os_printf("*** Invalid conversion opcode\n");
506	return_ACPI_STATUS(AE_BAD_PARAMETER);
50eca3eb	507	}
1da177e4	508
0897831b BM	509	count--;
0897831b BM	510	info++;
1da177e4 LT	511	}
1da177e4 LT	512
0897831b	513	exit:
4be44fcd	514	return_ACPI_STATUS(AE_OK);
1da177e4 LT	515	}
1da177e4 LT	516
0897831b BM	517	#if 0
0897831b BM	518	/* Previous resource validations */
44f6c012	519
0897831b BM	520	if (aml->ext_address64.revision_iD != AML_RESOURCE_EXTENDED_ADDRESS_REVISION) {
0897831b BM	521	return_ACPI_STATUS(AE_SUPPORT);
1da177e4 LT	522	}
1da177e4 LT	523
0897831b BM	524	if (resource->data.start_dpf.performance_robustness >= 3) {
0897831b BM	525	return_ACPI_STATUS(AE_AML_BAD_RESOURCE_VALUE);
1da177e4 LT	526	}
1da177e4 LT	527
0897831b BM	528	if (((aml->irq.flags & 0x09) == 0x00) \|\| ((aml->irq.flags & 0x09) == 0x09)) {
	529	/*
	530	* Only [active_high, edge_sensitive] or [active_low, level_sensitive]
	531	* polarity/trigger interrupts are allowed (ACPI spec, section
	532	* "IRQ Format"), so 0x00 and 0x09 are illegal.
	533	*/
	534	ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
	535	"Invalid interrupt polarity/trigger in resource list, %X\n",
	536	aml->irq.flags));
	537	return_ACPI_STATUS(AE_BAD_DATA);
1da177e4 LT	538	}
1da177e4 LT	539
0897831b BM	540	resource->data.extended_irq.interrupt_count = temp8;
	541	if (temp8 < 1) {
	542	/* Must have at least one IRQ */
44f6c012	543
0897831b	544	return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH);
1da177e4 LT	545	}
1da177e4 LT	546
0897831b BM	547	if (resource->data.dma.transfer == 0x03) {
	548	ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
	549	"Invalid DMA.Transfer preference (3)\n"));
	550	return_ACPI_STATUS(AE_BAD_DATA);
1da177e4	551	}
0897831b	552	#endif