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

/*******************************************************************************
 *
 * Module Name: rslist - Linked list utilities
 *
 ******************************************************************************/

/*
 * 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    ("rslist")


/*******************************************************************************
 *
 * FUNCTION:    acpi_rs_get_resource_type
 *
 * PARAMETERS:  resource_start_byte     - Byte 0 of a resource descriptor
 *
 * RETURN:      The Resource Type with no extraneous bits
 *
 * DESCRIPTION: Extract the Resource Type/Name from the first byte of
 *              a resource descriptor.
 *
 ******************************************************************************/

u8
acpi_rs_get_resource_type (
	u8                              resource_start_byte)
{

	ACPI_FUNCTION_ENTRY ();


	/* Determine if this is a small or large resource */

	switch (resource_start_byte & ACPI_RDESC_TYPE_MASK) {
	case ACPI_RDESC_TYPE_SMALL:

		/* Small Resource Type -- Only bits 6:3 are valid */

		return ((u8) (resource_start_byte & ACPI_RDESC_SMALL_MASK));


	case ACPI_RDESC_TYPE_LARGE:

		/* Large Resource Type -- All bits are valid */

		return (resource_start_byte);


	default:
		/* Invalid type */
		break;
	}

	return (0xFF);
}


/*******************************************************************************
 *
 * FUNCTION:    acpi_rs_byte_stream_to_list
 *
 * PARAMETERS:  byte_stream_buffer      - Pointer to the resource byte stream
 *              byte_stream_buffer_length - Length of byte_stream_buffer
 *              output_buffer           - Pointer to the buffer that will
 *                                        contain the output structures
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Takes the resource byte stream and parses it, creating a
 *              linked list of resources in the caller's output buffer
 *
 ******************************************************************************/

acpi_status
acpi_rs_byte_stream_to_list (
	u8                              *byte_stream_buffer,
	u32                             byte_stream_buffer_length,
	u8                              *output_buffer)
{
	acpi_status                     status;
	acpi_size                       bytes_parsed = 0;
	u8                              resource_type = 0;
	acpi_size                       bytes_consumed = 0;
	u8                              *buffer = output_buffer;
	acpi_size                       structure_size = 0;
	u8                              end_tag_processed = FALSE;
	struct acpi_resource            *resource;

	ACPI_FUNCTION_TRACE ("rs_byte_stream_to_list");


	while (bytes_parsed < byte_stream_buffer_length &&
			!end_tag_processed) {
		/* The next byte in the stream is the resource type */

		resource_type = acpi_rs_get_resource_type (*byte_stream_buffer);

		switch (resource_type) {
		case ACPI_RDESC_TYPE_MEMORY_24:
			/*
			 * 24-Bit Memory Resource
			 */
			status = acpi_rs_memory24_resource (byte_stream_buffer,
					 &bytes_consumed, &buffer, &structure_size);
			break;


		case ACPI_RDESC_TYPE_LARGE_VENDOR:
			/*
			 * Vendor Defined Resource
			 */
			status = acpi_rs_vendor_resource (byte_stream_buffer,
					 &bytes_consumed, &buffer, &structure_size);
			break;


		case ACPI_RDESC_TYPE_MEMORY_32:
			/*
			 * 32-Bit Memory Range Resource
			 */
			status = acpi_rs_memory32_range_resource (byte_stream_buffer,
					 &bytes_consumed, &buffer, &structure_size);
			break;


		case ACPI_RDESC_TYPE_FIXED_MEMORY_32:
			/*
			 * 32-Bit Fixed Memory Resource
			 */
			status = acpi_rs_fixed_memory32_resource (byte_stream_buffer,
					 &bytes_consumed, &buffer, &structure_size);
			break;


		case ACPI_RDESC_TYPE_QWORD_ADDRESS_SPACE:
		case ACPI_RDESC_TYPE_EXTENDED_ADDRESS_SPACE:
			/*
			 * 64-Bit Address Resource
			 */
			status = acpi_rs_address64_resource (byte_stream_buffer,
					 &bytes_consumed, &buffer, &structure_size);
			break;


		case ACPI_RDESC_TYPE_DWORD_ADDRESS_SPACE:
			/*
			 * 32-Bit Address Resource
			 */
			status = acpi_rs_address32_resource (byte_stream_buffer,
					 &bytes_consumed, &buffer, &structure_size);
			break;


		case ACPI_RDESC_TYPE_WORD_ADDRESS_SPACE:
			/*
			 * 16-Bit Address Resource
			 */
			status = acpi_rs_address16_resource (byte_stream_buffer,
					 &bytes_consumed, &buffer, &structure_size);
			break;


		case ACPI_RDESC_TYPE_EXTENDED_XRUPT:
			/*
			 * Extended IRQ
			 */
			status = acpi_rs_extended_irq_resource (byte_stream_buffer,
					 &bytes_consumed, &buffer, &structure_size);
			break;


		case ACPI_RDESC_TYPE_IRQ_FORMAT:
			/*
			 * IRQ Resource
			 */
			status = acpi_rs_irq_resource (byte_stream_buffer,
					 &bytes_consumed, &buffer, &structure_size);
			break;


		case ACPI_RDESC_TYPE_DMA_FORMAT:
			/*
			 * DMA Resource
			 */
			status = acpi_rs_dma_resource (byte_stream_buffer,
					 &bytes_consumed, &buffer, &structure_size);
			break;


		case ACPI_RDESC_TYPE_START_DEPENDENT:
			/*
			 * Start Dependent Functions Resource
			 */
			status = acpi_rs_start_depend_fns_resource (byte_stream_buffer,
					 &bytes_consumed, &buffer, &structure_size);
			break;


		case ACPI_RDESC_TYPE_END_DEPENDENT:
			/*
			 * End Dependent Functions Resource
			 */
			status = acpi_rs_end_depend_fns_resource (byte_stream_buffer,
					 &bytes_consumed, &buffer, &structure_size);
			break;


		case ACPI_RDESC_TYPE_IO_PORT:
			/*
			 * IO Port Resource
			 */
			status = acpi_rs_io_resource (byte_stream_buffer,
					 &bytes_consumed, &buffer, &structure_size);
			break;


		case ACPI_RDESC_TYPE_FIXED_IO_PORT:
			/*
			 * Fixed IO Port Resource
			 */
			status = acpi_rs_fixed_io_resource (byte_stream_buffer,
					 &bytes_consumed, &buffer, &structure_size);
			break;


		case ACPI_RDESC_TYPE_SMALL_VENDOR:
			/*
			 * Vendor Specific Resource
			 */
			status = acpi_rs_vendor_resource (byte_stream_buffer,
					 &bytes_consumed, &buffer, &structure_size);
			break;


		case ACPI_RDESC_TYPE_END_TAG:
			/*
			 * End Tag
			 */
			end_tag_processed = TRUE;
			status = acpi_rs_end_tag_resource (byte_stream_buffer,
					 &bytes_consumed, &buffer, &structure_size);
			break;


		default:
			/*
			 * Invalid/Unknown resource type
			 */
			status = AE_AML_INVALID_RESOURCE_TYPE;
			break;
		}

		if (ACPI_FAILURE (status)) {
			return_ACPI_STATUS (status);
		}

		/* Update the return value and counter */

		bytes_parsed += bytes_consumed;

		/* Set the byte stream to point to the next resource */

		byte_stream_buffer += bytes_consumed;

		/* Set the Buffer to the next structure */

		resource = ACPI_CAST_PTR (struct acpi_resource, buffer);
		resource->length = (u32) ACPI_ALIGN_RESOURCE_SIZE (resource->length);
		buffer += ACPI_ALIGN_RESOURCE_SIZE (structure_size);
	}

	/* Check the reason for exiting the while loop */

	if (!end_tag_processed) {
		return_ACPI_STATUS (AE_AML_NO_RESOURCE_END_TAG);
	}

	return_ACPI_STATUS (AE_OK);
}


/*******************************************************************************
 *
 * FUNCTION:    acpi_rs_list_to_byte_stream
 *
 * PARAMETERS:  linked_list             - Pointer to the resource linked list
 *              byte_steam_size_needed  - Calculated size of the byte stream
 *                                        needed from calling
 *                                        acpi_rs_get_byte_stream_length()
 *                                        The size of the output_buffer is
 *                                        guaranteed to be >=
 *                                        byte_stream_size_needed
 *              output_buffer           - Pointer to the buffer that will
 *                                        contain the byte stream
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Takes the resource linked list and parses it, creating a
 *              byte stream of resources in the caller's output buffer
 *
 ******************************************************************************/

acpi_status
acpi_rs_list_to_byte_stream (
	struct acpi_resource            *linked_list,
	acpi_size                       byte_stream_size_needed,
	u8                              *output_buffer)
{
	acpi_status                     status;
	u8                              *buffer = output_buffer;
	acpi_size                       bytes_consumed = 0;
	u8                              done = FALSE;


	ACPI_FUNCTION_TRACE ("rs_list_to_byte_stream");


	while (!done) {
		switch (linked_list->id) {
		case ACPI_RSTYPE_IRQ:
			/*
			 * IRQ Resource
			 */
			status = acpi_rs_irq_stream (linked_list, &buffer, &bytes_consumed);
			break;

		case ACPI_RSTYPE_DMA:
			/*
			 * DMA Resource
			 */
			status = acpi_rs_dma_stream (linked_list, &buffer, &bytes_consumed);
			break;

		case ACPI_RSTYPE_START_DPF:
			/*
			 * Start Dependent Functions Resource
			 */
			status = acpi_rs_start_depend_fns_stream (linked_list,
					  &buffer, &bytes_consumed);
			break;

		case ACPI_RSTYPE_END_DPF:
			/*
			 * End Dependent Functions Resource
			 */
			status = acpi_rs_end_depend_fns_stream (linked_list,
					  &buffer, &bytes_consumed);
			break;

		case ACPI_RSTYPE_IO:
			/*
			 * IO Port Resource
			 */
			status = acpi_rs_io_stream (linked_list, &buffer, &bytes_consumed);
			break;

		case ACPI_RSTYPE_FIXED_IO:
			/*
			 * Fixed IO Port Resource
			 */
			status = acpi_rs_fixed_io_stream (linked_list, &buffer, &bytes_consumed);
			break;

		case ACPI_RSTYPE_VENDOR:
			/*
			 * Vendor Defined Resource
			 */
			status = acpi_rs_vendor_stream (linked_list, &buffer, &bytes_consumed);
			break;

		case ACPI_RSTYPE_END_TAG:
			/*
			 * End Tag
			 */
			status = acpi_rs_end_tag_stream (linked_list, &buffer, &bytes_consumed);

			/* An End Tag indicates the end of the Resource Template */

			done = TRUE;
			break;

		case ACPI_RSTYPE_MEM24:
			/*
			 * 24-Bit Memory Resource
			 */
			status = acpi_rs_memory24_stream (linked_list, &buffer, &bytes_consumed);
			break;

		case ACPI_RSTYPE_MEM32:
			/*
			 * 32-Bit Memory Range Resource
			 */
			status = acpi_rs_memory32_range_stream (linked_list, &buffer,
					 &bytes_consumed);
			break;

		case ACPI_RSTYPE_FIXED_MEM32:
			/*
			 * 32-Bit Fixed Memory Resource
			 */
			status = acpi_rs_fixed_memory32_stream (linked_list, &buffer,
					 &bytes_consumed);
			break;

		case ACPI_RSTYPE_ADDRESS16:
			/*
			 * 16-Bit Address Descriptor Resource
			 */
			status = acpi_rs_address16_stream (linked_list, &buffer,
					 &bytes_consumed);
			break;

		case ACPI_RSTYPE_ADDRESS32:
			/*
			 * 32-Bit Address Descriptor Resource
			 */
			status = acpi_rs_address32_stream (linked_list, &buffer,
					 &bytes_consumed);
			break;

		case ACPI_RSTYPE_ADDRESS64:
			/*
			 * 64-Bit Address Descriptor Resource
			 */
			status = acpi_rs_address64_stream (linked_list, &buffer,
					 &bytes_consumed);
			break;

		case ACPI_RSTYPE_EXT_IRQ:
			/*
			 * Extended IRQ Resource
			 */
			status = acpi_rs_extended_irq_stream (linked_list, &buffer,
					 &bytes_consumed);
			break;

		default:
			/*
			 * If we get here, everything is out of sync,
			 * so exit with an error
			 */
			ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
				"Invalid descriptor type (%X) in resource list\n",
				linked_list->id));
			status = AE_BAD_DATA;
			break;
		}

		if (ACPI_FAILURE (status)) {
			return_ACPI_STATUS (status);
		}

		/* Set the Buffer to point to the open byte */

		buffer += bytes_consumed;

		/* Point to the next object */

		linked_list = ACPI_PTR_ADD (struct acpi_resource,
				  linked_list, linked_list->length);
	}

	return_ACPI_STATUS (AE_OK);
}
Commit	Line	Data
1da177e4 LT	1	/*******************************************************************************
	2	*
	3	* Module Name: rslist - Linked list utilities
	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
	44
	45	#include <acpi/acpi.h>
	46	#include <acpi/acresrc.h>
	47
	48	#define _COMPONENT ACPI_RESOURCES
	49	ACPI_MODULE_NAME ("rslist")
	50
	51
	52	/*******************************************************************************
	53	*
	54	* FUNCTION: acpi_rs_get_resource_type
	55	*
	56	* PARAMETERS: resource_start_byte - Byte 0 of a resource descriptor
	57	*
44f6c012	58	* RETURN: The Resource Type with no extraneous bits
1da177e4 LT	59	*
	60	* DESCRIPTION: Extract the Resource Type/Name from the first byte of
	61	* a resource descriptor.
	62	*
	63	******************************************************************************/
	64
	65	u8
	66	acpi_rs_get_resource_type (
	67	u8 resource_start_byte)
	68	{
	69
	70	ACPI_FUNCTION_ENTRY ();
	71
	72
44f6c012 RM	73	/* Determine if this is a small or large resource */
44f6c012 RM	74
1da177e4 LT	75	switch (resource_start_byte & ACPI_RDESC_TYPE_MASK) {
	76	case ACPI_RDESC_TYPE_SMALL:
	77
44f6c012 RM	78	/* Small Resource Type -- Only bits 6:3 are valid */
44f6c012 RM	79
1da177e4 LT	80	return ((u8) (resource_start_byte & ACPI_RDESC_SMALL_MASK));
	81
	82
	83	case ACPI_RDESC_TYPE_LARGE:
	84
44f6c012 RM	85	/* Large Resource Type -- All bits are valid */
44f6c012 RM	86
1da177e4 LT	87	return (resource_start_byte);
	88
	89
	90	default:
44f6c012	91	/* Invalid type */
1da177e4 LT	92	break;
	93	}
	94
	95	return (0xFF);
	96	}
	97
	98
	99	/*******************************************************************************
	100	*
	101	* FUNCTION: acpi_rs_byte_stream_to_list
	102	*
	103	* PARAMETERS: byte_stream_buffer - Pointer to the resource byte stream
	104	* byte_stream_buffer_length - Length of byte_stream_buffer
	105	* output_buffer - Pointer to the buffer that will
	106	* contain the output structures
	107	*
	108	* RETURN: Status
	109	*
	110	* DESCRIPTION: Takes the resource byte stream and parses it, creating a
	111	* linked list of resources in the caller's output buffer
	112	*
	113	******************************************************************************/
	114
	115	acpi_status
	116	acpi_rs_byte_stream_to_list (
	117	u8 *byte_stream_buffer,
	118	u32 byte_stream_buffer_length,
	119	u8 *output_buffer)
	120	{
	121	acpi_status status;
	122	acpi_size bytes_parsed = 0;
	123	u8 resource_type = 0;
	124	acpi_size bytes_consumed = 0;
	125	u8 *buffer = output_buffer;
	126	acpi_size structure_size = 0;
	127	u8 end_tag_processed = FALSE;
	128	struct acpi_resource *resource;
	129
	130	ACPI_FUNCTION_TRACE ("rs_byte_stream_to_list");
	131
	132
	133	while (bytes_parsed < byte_stream_buffer_length &&
	134	!end_tag_processed) {
44f6c012 RM	135	/* The next byte in the stream is the resource type */
44f6c012 RM	136
1da177e4 LT	137	resource_type = acpi_rs_get_resource_type (*byte_stream_buffer);
	138
	139	switch (resource_type) {
	140	case ACPI_RDESC_TYPE_MEMORY_24:
	141	/*
	142	* 24-Bit Memory Resource
	143	*/
	144	status = acpi_rs_memory24_resource (byte_stream_buffer,
	145	&bytes_consumed, &buffer, &structure_size);
	146	break;
	147
	148
	149	case ACPI_RDESC_TYPE_LARGE_VENDOR:
	150	/*
	151	* Vendor Defined Resource
	152	*/
	153	status = acpi_rs_vendor_resource (byte_stream_buffer,
	154	&bytes_consumed, &buffer, &structure_size);
	155	break;
	156
	157
	158	case ACPI_RDESC_TYPE_MEMORY_32:
	159	/*
	160	* 32-Bit Memory Range Resource
	161	*/
	162	status = acpi_rs_memory32_range_resource (byte_stream_buffer,
	163	&bytes_consumed, &buffer, &structure_size);
	164	break;
	165
	166
	167	case ACPI_RDESC_TYPE_FIXED_MEMORY_32:
	168	/*
	169	* 32-Bit Fixed Memory Resource
	170	*/
	171	status = acpi_rs_fixed_memory32_resource (byte_stream_buffer,
	172	&bytes_consumed, &buffer, &structure_size);
	173	break;
	174
	175
	176	case ACPI_RDESC_TYPE_QWORD_ADDRESS_SPACE:
	177	case ACPI_RDESC_TYPE_EXTENDED_ADDRESS_SPACE:
	178	/*
	179	* 64-Bit Address Resource
	180	*/
	181	status = acpi_rs_address64_resource (byte_stream_buffer,
	182	&bytes_consumed, &buffer, &structure_size);
	183	break;
	184
	185
	186	case ACPI_RDESC_TYPE_DWORD_ADDRESS_SPACE:
	187	/*
	188	* 32-Bit Address Resource
	189	*/
	190	status = acpi_rs_address32_resource (byte_stream_buffer,
	191	&bytes_consumed, &buffer, &structure_size);
	192	break;
	193
	194
	195	case ACPI_RDESC_TYPE_WORD_ADDRESS_SPACE:
	196	/*
	197	* 16-Bit Address Resource
	198	*/
	199	status = acpi_rs_address16_resource (byte_stream_buffer,
	200	&bytes_consumed, &buffer, &structure_size);
201	break;
202
203
204	case ACPI_RDESC_TYPE_EXTENDED_XRUPT:
205	/*
206	* Extended IRQ
207	*/
208	status = acpi_rs_extended_irq_resource (byte_stream_buffer,
209	&bytes_consumed, &buffer, &structure_size);
210	break;
211
212
213	case ACPI_RDESC_TYPE_IRQ_FORMAT:
214	/*
215	* IRQ Resource
216	*/
217	status = acpi_rs_irq_resource (byte_stream_buffer,
218	&bytes_consumed, &buffer, &structure_size);
219	break;
220
221
222	case ACPI_RDESC_TYPE_DMA_FORMAT:
223	/*
224	* DMA Resource
225	*/
226	status = acpi_rs_dma_resource (byte_stream_buffer,
227	&bytes_consumed, &buffer, &structure_size);
228	break;
229
230
231	case ACPI_RDESC_TYPE_START_DEPENDENT:
232	/*
233	* Start Dependent Functions Resource
234	*/
235	status = acpi_rs_start_depend_fns_resource (byte_stream_buffer,
236	&bytes_consumed, &buffer, &structure_size);
237	break;
238
239
240	case ACPI_RDESC_TYPE_END_DEPENDENT:
241	/*
242	* End Dependent Functions Resource
243	*/
244	status = acpi_rs_end_depend_fns_resource (byte_stream_buffer,
245	&bytes_consumed, &buffer, &structure_size);
246	break;
247
248
249	case ACPI_RDESC_TYPE_IO_PORT:
250	/*
251	* IO Port Resource
252	*/
253	status = acpi_rs_io_resource (byte_stream_buffer,
254	&bytes_consumed, &buffer, &structure_size);
255	break;
256
257
258	case ACPI_RDESC_TYPE_FIXED_IO_PORT:
259	/*
260	* Fixed IO Port Resource
261	*/
262	status = acpi_rs_fixed_io_resource (byte_stream_buffer,
263	&bytes_consumed, &buffer, &structure_size);
264	break;
265
266
267	case ACPI_RDESC_TYPE_SMALL_VENDOR:
268	/*
269	* Vendor Specific Resource
270	*/
271	status = acpi_rs_vendor_resource (byte_stream_buffer,
272	&bytes_consumed, &buffer, &structure_size);
273	break;
274
275
276	case ACPI_RDESC_TYPE_END_TAG:
277	/*
278	* End Tag
279	*/
280	end_tag_processed = TRUE;
281	status = acpi_rs_end_tag_resource (byte_stream_buffer,
282	&bytes_consumed, &buffer, &structure_size);
283	break;
284
285
286	default:
287	/*
288	* Invalid/Unknown resource type
289	*/
290	status = AE_AML_INVALID_RESOURCE_TYPE;
291	break;
292	}
293
294	if (ACPI_FAILURE (status)) {
295	return_ACPI_STATUS (status);
296	}
297
44f6c012 RM	298	/* Update the return value and counter */
44f6c012 RM	299
1da177e4 LT	300	bytes_parsed += bytes_consumed;
1da177e4 LT	301
44f6c012 RM	302	/* Set the byte stream to point to the next resource */
44f6c012 RM	303
1da177e4 LT	304	byte_stream_buffer += bytes_consumed;
1da177e4 LT	305
44f6c012 RM	306	/* Set the Buffer to the next structure */
44f6c012 RM	307
1da177e4 LT	308	resource = ACPI_CAST_PTR (struct acpi_resource, buffer);
	309	resource->length = (u32) ACPI_ALIGN_RESOURCE_SIZE (resource->length);
	310	buffer += ACPI_ALIGN_RESOURCE_SIZE (structure_size);
44f6c012	311	}
1da177e4	312
44f6c012	313	/* Check the reason for exiting the while loop */
1da177e4	314
1da177e4 LT	315	if (!end_tag_processed) {
	316	return_ACPI_STATUS (AE_AML_NO_RESOURCE_END_TAG);
	317	}
	318
	319	return_ACPI_STATUS (AE_OK);
	320	}
	321
	322
	323	/*******************************************************************************
	324	*
	325	* FUNCTION: acpi_rs_list_to_byte_stream
	326	*
	327	* PARAMETERS: linked_list - Pointer to the resource linked list
	328	* byte_steam_size_needed - Calculated size of the byte stream
	329	* needed from calling
	330	* acpi_rs_get_byte_stream_length()
	331	* The size of the output_buffer is
	332	* guaranteed to be >=
	333	* byte_stream_size_needed
	334	* output_buffer - Pointer to the buffer that will
	335	* contain the byte stream
	336	*
	337	* RETURN: Status
	338	*
	339	* DESCRIPTION: Takes the resource linked list and parses it, creating a
	340	* byte stream of resources in the caller's output buffer
	341	*
	342	******************************************************************************/
	343
	344	acpi_status
	345	acpi_rs_list_to_byte_stream (
	346	struct acpi_resource *linked_list,
	347	acpi_size byte_stream_size_needed,
	348	u8 *output_buffer)
	349	{
	350	acpi_status status;
	351	u8 *buffer = output_buffer;
	352	acpi_size bytes_consumed = 0;
	353	u8 done = FALSE;
	354
	355
	356	ACPI_FUNCTION_TRACE ("rs_list_to_byte_stream");
	357
	358
	359	while (!done) {
	360	switch (linked_list->id) {
	361	case ACPI_RSTYPE_IRQ:
	362	/*
	363	* IRQ Resource
	364	*/
	365	status = acpi_rs_irq_stream (linked_list, &buffer, &bytes_consumed);
	366	break;
	367
	368	case ACPI_RSTYPE_DMA:
	369	/*
	370	* DMA Resource
	371	*/
	372	status = acpi_rs_dma_stream (linked_list, &buffer, &bytes_consumed);
	373	break;
	374
	375	case ACPI_RSTYPE_START_DPF:
	376	/*
	377	* Start Dependent Functions Resource
	378	*/
379	status = acpi_rs_start_depend_fns_stream (linked_list,
380	&buffer, &bytes_consumed);
381	break;
382
383	case ACPI_RSTYPE_END_DPF:
384	/*
385	* End Dependent Functions Resource
386	*/
387	status = acpi_rs_end_depend_fns_stream (linked_list,
388	&buffer, &bytes_consumed);
389	break;
390
391	case ACPI_RSTYPE_IO:
392	/*
393	* IO Port Resource
394	*/
395	status = acpi_rs_io_stream (linked_list, &buffer, &bytes_consumed);
396	break;
397
398	case ACPI_RSTYPE_FIXED_IO:
399	/*
400	* Fixed IO Port Resource
401	*/
402	status = acpi_rs_fixed_io_stream (linked_list, &buffer, &bytes_consumed);
403	break;
404
405	case ACPI_RSTYPE_VENDOR:
406	/*
407	* Vendor Defined Resource
408	*/
409	status = acpi_rs_vendor_stream (linked_list, &buffer, &bytes_consumed);
410	break;
411
412	case ACPI_RSTYPE_END_TAG:
413	/*
414	* End Tag
415	*/
416	status = acpi_rs_end_tag_stream (linked_list, &buffer, &bytes_consumed);
417
44f6c012 RM	418	/* An End Tag indicates the end of the Resource Template */
44f6c012 RM	419
1da177e4 LT	420	done = TRUE;
	421	break;
	422
	423	case ACPI_RSTYPE_MEM24:
	424	/*
	425	* 24-Bit Memory Resource
	426	*/
	427	status = acpi_rs_memory24_stream (linked_list, &buffer, &bytes_consumed);
	428	break;
	429
	430	case ACPI_RSTYPE_MEM32:
	431	/*
	432	* 32-Bit Memory Range Resource
	433	*/
	434	status = acpi_rs_memory32_range_stream (linked_list, &buffer,
	435	&bytes_consumed);
	436	break;
	437
	438	case ACPI_RSTYPE_FIXED_MEM32:
	439	/*
	440	* 32-Bit Fixed Memory Resource
	441	*/
	442	status = acpi_rs_fixed_memory32_stream (linked_list, &buffer,
	443	&bytes_consumed);
	444	break;
	445
	446	case ACPI_RSTYPE_ADDRESS16:
	447	/*
	448	* 16-Bit Address Descriptor Resource
	449	*/
	450	status = acpi_rs_address16_stream (linked_list, &buffer,
	451	&bytes_consumed);
	452	break;
	453
	454	case ACPI_RSTYPE_ADDRESS32:
	455	/*
	456	* 32-Bit Address Descriptor Resource
	457	*/
	458	status = acpi_rs_address32_stream (linked_list, &buffer,
	459	&bytes_consumed);
	460	break;
	461
	462	case ACPI_RSTYPE_ADDRESS64:
	463	/*
	464	* 64-Bit Address Descriptor Resource
	465	*/
	466	status = acpi_rs_address64_stream (linked_list, &buffer,
	467	&bytes_consumed);
	468	break;
	469
	470	case ACPI_RSTYPE_EXT_IRQ:
	471	/*
	472	* Extended IRQ Resource
	473	*/
	474	status = acpi_rs_extended_irq_stream (linked_list, &buffer,
	475	&bytes_consumed);
	476	break;
	477
	478	default:
	479	/*
	480	* If we get here, everything is out of sync,
44f6c012	481	* so exit with an error
1da177e4	482	*/
44f6c012 RM	483	ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
44f6c012 RM	484	"Invalid descriptor type (%X) in resource list\n",
1da177e4 LT	485	linked_list->id));
	486	status = AE_BAD_DATA;
	487	break;
44f6c012	488	}
1da177e4 LT	489
	490	if (ACPI_FAILURE (status)) {
	491	return_ACPI_STATUS (status);
	492	}
	493
44f6c012 RM	494	/* Set the Buffer to point to the open byte */
44f6c012 RM	495
1da177e4 LT	496	buffer += bytes_consumed;
1da177e4 LT	497
44f6c012 RM	498	/* Point to the next object */
44f6c012 RM	499
1da177e4 LT	500	linked_list = ACPI_PTR_ADD (struct acpi_resource,
	501	linked_list, linked_list->length);
	502	}
	503
	504	return_ACPI_STATUS (AE_OK);
	505	}
	506