[linux-2.6-block.git] / tools / power / acpi / tools / acpidump / apdump.c

/******************************************************************************
 *
 * Module Name: apdump - Dump routines for ACPI tables (acpidump)
 *
 *****************************************************************************/

/*
 * Copyright (C) 2000 - 2015, 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 "acpidump.h"

/* Local prototypes */

static int
ap_dump_table_buffer(struct acpi_table_header *table,
		     u32 instance, acpi_physical_address address);

/******************************************************************************
 *
 * FUNCTION:    ap_is_valid_header
 *
 * PARAMETERS:  table               - Pointer to table to be validated
 *
 * RETURN:      TRUE if the header appears to be valid. FALSE otherwise
 *
 * DESCRIPTION: Check for a valid ACPI table header
 *
 ******************************************************************************/

u8 ap_is_valid_header(struct acpi_table_header *table)
{

	if (!ACPI_VALIDATE_RSDP_SIG(table->signature)) {

		/* Make sure signature is all ASCII and a valid ACPI name */

		if (!acpi_ut_valid_acpi_name(table->signature)) {
			acpi_log_error("Table signature (0x%8.8X) is invalid\n",
				       *(u32 *)table->signature);
			return (FALSE);
		}

		/* Check for minimum table length */

		if (table->length < sizeof(struct acpi_table_header)) {
			acpi_log_error("Table length (0x%8.8X) is invalid\n",
				       table->length);
			return (FALSE);
		}
	}

	return (TRUE);
}

/******************************************************************************
 *
 * FUNCTION:    ap_is_valid_checksum
 *
 * PARAMETERS:  table               - Pointer to table to be validated
 *
 * RETURN:      TRUE if the checksum appears to be valid. FALSE otherwise.
 *
 * DESCRIPTION: Check for a valid ACPI table checksum.
 *
 ******************************************************************************/

u8 ap_is_valid_checksum(struct acpi_table_header *table)
{
	acpi_status status;
	struct acpi_table_rsdp *rsdp;

	if (ACPI_VALIDATE_RSDP_SIG(table->signature)) {
		/*
		 * Checksum for RSDP.
		 * Note: Other checksums are computed during the table dump.
		 */
		rsdp = ACPI_CAST_PTR(struct acpi_table_rsdp, table);
		status = acpi_tb_validate_rsdp(rsdp);
	} else {
		status = acpi_tb_verify_checksum(table, table->length);
	}

	if (ACPI_FAILURE(status)) {
		acpi_log_error("%4.4s: Warning: wrong checksum in table\n",
			       table->signature);
	}

	return (AE_OK);
}

/******************************************************************************
 *
 * FUNCTION:    ap_get_table_length
 *
 * PARAMETERS:  table               - Pointer to the table
 *
 * RETURN:      Table length
 *
 * DESCRIPTION: Obtain table length according to table signature.
 *
 ******************************************************************************/

u32 ap_get_table_length(struct acpi_table_header *table)
{
	struct acpi_table_rsdp *rsdp;

	/* Check if table is valid */

	if (!ap_is_valid_header(table)) {
		return (0);
	}

	if (ACPI_VALIDATE_RSDP_SIG(table->signature)) {
		rsdp = ACPI_CAST_PTR(struct acpi_table_rsdp, table);
		return (acpi_tb_get_rsdp_length(rsdp));
	}

	/* Normal ACPI table */

	return (table->length);
}

/******************************************************************************
 *
 * FUNCTION:    ap_dump_table_buffer
 *
 * PARAMETERS:  table               - ACPI table to be dumped
 *              instance            - ACPI table instance no. to be dumped
 *              address             - Physical address of the table
 *
 * RETURN:      None
 *
 * DESCRIPTION: Dump an ACPI table in standard ASCII hex format, with a
 *              header that is compatible with the acpi_xtract utility.
 *
 ******************************************************************************/

static int
ap_dump_table_buffer(struct acpi_table_header *table,
		     u32 instance, acpi_physical_address address)
{
	u32 table_length;

	table_length = ap_get_table_length(table);

	/* Print only the header if requested */

	if (gbl_summary_mode) {
		acpi_tb_print_table_header(address, table);
		return (0);
	}

	/* Dump to binary file if requested */

	if (gbl_binary_mode) {
		return (ap_write_to_binary_file(table, instance));
	}

	/*
	 * Dump the table with header for use with acpixtract utility.
	 * Note: simplest to just always emit a 64-bit address. acpi_xtract
	 * utility can handle this.
	 */
	acpi_ut_file_printf(gbl_output_file, "%4.4s @ 0x%8.8X%8.8X\n",
			    table->signature, ACPI_FORMAT_UINT64(address));

	acpi_ut_dump_buffer_to_file(gbl_output_file,
				    ACPI_CAST_PTR(u8, table), table_length,
				    DB_BYTE_DISPLAY, 0);
	acpi_ut_file_printf(gbl_output_file, "\n");
	return (0);
}

/******************************************************************************
 *
 * FUNCTION:    ap_dump_all_tables
 *
 * PARAMETERS:  None
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Get all tables from the RSDT/XSDT (or at least all of the
 *              tables that we can possibly get).
 *
 ******************************************************************************/

int ap_dump_all_tables(void)
{
	struct acpi_table_header *table;
	u32 instance = 0;
	acpi_physical_address address;
	acpi_status status;
	int table_status;
	u32 i;

	/* Get and dump all available ACPI tables */

	for (i = 0; i < AP_MAX_ACPI_FILES; i++) {
		status =
		    acpi_os_get_table_by_index(i, &table, &instance, &address);
		if (ACPI_FAILURE(status)) {

			/* AE_LIMIT means that no more tables are available */

			if (status == AE_LIMIT) {
				return (0);
			} else if (i == 0) {
				acpi_log_error
				    ("Could not get ACPI tables, %s\n",
				     acpi_format_exception(status));
				return (-1);
			} else {
				acpi_log_error
				    ("Could not get ACPI table at index %u, %s\n",
				     i, acpi_format_exception(status));
				continue;
			}
		}

		table_status = ap_dump_table_buffer(table, instance, address);
		ACPI_FREE(table);

		if (table_status) {
			break;
		}
	}

	/* Something seriously bad happened if the loop terminates here */

	return (-1);
}

/******************************************************************************
 *
 * FUNCTION:    ap_dump_table_by_address
 *
 * PARAMETERS:  ascii_address       - Address for requested ACPI table
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Get an ACPI table via a physical address and dump it.
 *
 ******************************************************************************/

int ap_dump_table_by_address(char *ascii_address)
{
	acpi_physical_address address;
	struct acpi_table_header *table;
	acpi_status status;
	int table_status;
	u64 long_address;

	/* Convert argument to an integer physical address */

	status = acpi_ut_strtoul64(ascii_address, 0, &long_address);
	if (ACPI_FAILURE(status)) {
		acpi_log_error("%s: Could not convert to a physical address\n",
			       ascii_address);
		return (-1);
	}

	address = (acpi_physical_address) long_address;
	status = acpi_os_get_table_by_address(address, &table);
	if (ACPI_FAILURE(status)) {
		acpi_log_error("Could not get table at 0x%8.8X%8.8X, %s\n",
			       ACPI_FORMAT_UINT64(address),
			       acpi_format_exception(status));
		return (-1);
	}

	table_status = ap_dump_table_buffer(table, 0, address);
	ACPI_FREE(table);
	return (table_status);
}

/******************************************************************************
 *
 * FUNCTION:    ap_dump_table_by_name
 *
 * PARAMETERS:  signature           - Requested ACPI table signature
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Get an ACPI table via a signature and dump it. Handles
 *              multiple tables with the same signature (SSDTs).
 *
 ******************************************************************************/

int ap_dump_table_by_name(char *signature)
{
	char local_signature[ACPI_NAME_SIZE + 1];
	u32 instance;
	struct acpi_table_header *table;
	acpi_physical_address address;
	acpi_status status;
	int table_status;

	if (ACPI_STRLEN(signature) != ACPI_NAME_SIZE) {
		acpi_log_error
		    ("Invalid table signature [%s]: must be exactly 4 characters\n",
		     signature);
		return (-1);
	}

	/* Table signatures are expected to be uppercase */

	ACPI_STRCPY(local_signature, signature);
	acpi_ut_strupr(local_signature);

	/* To be friendly, handle tables whose signatures do not match the name */

	if (ACPI_COMPARE_NAME(local_signature, "FADT")) {
		ACPI_STRCPY(local_signature, ACPI_SIG_FADT);
	} else if (ACPI_COMPARE_NAME(local_signature, "MADT")) {
		ACPI_STRCPY(local_signature, ACPI_SIG_MADT);
	}

	/* Dump all instances of this signature (to handle multiple SSDTs) */

	for (instance = 0; instance < AP_MAX_ACPI_FILES; instance++) {
		status = acpi_os_get_table_by_name(local_signature, instance,
						   &table, &address);
		if (ACPI_FAILURE(status)) {

			/* AE_LIMIT means that no more tables are available */

			if (status == AE_LIMIT) {
				return (0);
			}

			acpi_log_error
			    ("Could not get ACPI table with signature [%s], %s\n",
			     local_signature, acpi_format_exception(status));
			return (-1);
		}

		table_status = ap_dump_table_buffer(table, instance, address);
		ACPI_FREE(table);

		if (table_status) {
			break;
		}
	}

	/* Something seriously bad happened if the loop terminates here */

	return (-1);
}

/******************************************************************************
 *
 * FUNCTION:    ap_dump_table_from_file
 *
 * PARAMETERS:  pathname            - File containing the binary ACPI table
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Dump an ACPI table from a binary file
 *
 ******************************************************************************/

int ap_dump_table_from_file(char *pathname)
{
	struct acpi_table_header *table;
	u32 file_size = 0;
	int table_status = -1;

	/* Get the entire ACPI table from the file */

	table = ap_get_table_from_file(pathname, &file_size);
	if (!table) {
		return (-1);
	}

	/* File must be at least as long as the table length */

	if (table->length > file_size) {
		acpi_log_error
		    ("Table length (0x%X) is too large for input file (0x%X) %s\n",
		     table->length, file_size, pathname);
		goto exit;
	}

	if (gbl_verbose_mode) {
		acpi_log_error
		    ("Input file:  %s contains table [%4.4s], 0x%X (%u) bytes\n",
		     pathname, table->signature, file_size, file_size);
	}

	table_status = ap_dump_table_buffer(table, 0, 0);

exit:
	ACPI_FREE(table);
	return (table_status);
}
Commit	Line	Data
506f57dd LZ	1	/******************************************************************************
	2	*
	3	* Module Name: apdump - Dump routines for ACPI tables (acpidump)
	4	*
	5	*****************************************************************************/
	6
	7	/*
82a80941	8	* Copyright (C) 2000 - 2015, Intel Corp.
506f57dd LZ	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	#include "acpidump.h"
	45
	46	/* Local prototypes */
	47
	48	static int
	49	ap_dump_table_buffer(struct acpi_table_header *table,
	50	u32 instance, acpi_physical_address address);
	51
	52	/******************************************************************************
	53	*
	54	* FUNCTION: ap_is_valid_header
	55	*
	56	* PARAMETERS: table - Pointer to table to be validated
	57	*
	58	* RETURN: TRUE if the header appears to be valid. FALSE otherwise
	59	*
	60	* DESCRIPTION: Check for a valid ACPI table header
	61	*
	62	******************************************************************************/
	63
	64	u8 ap_is_valid_header(struct acpi_table_header *table)
	65	{
	66
	67	if (!ACPI_VALIDATE_RSDP_SIG(table->signature)) {
	68
	69	/* Make sure signature is all ASCII and a valid ACPI name */
	70
	71	if (!acpi_ut_valid_acpi_name(table->signature)) {
dcaff16d LZ	72	acpi_log_error("Table signature (0x%8.8X) is invalid\n",
dcaff16d LZ	73	(u32 )table->signature);
506f57dd LZ	74	return (FALSE);
	75	}
	76
	77	/* Check for minimum table length */
	78
	79	if (table->length < sizeof(struct acpi_table_header)) {
dcaff16d LZ	80	acpi_log_error("Table length (0x%8.8X) is invalid\n",
dcaff16d LZ	81	table->length);
506f57dd LZ	82	return (FALSE);
	83	}
	84	}
	85
	86	return (TRUE);
	87	}
	88
	89	/******************************************************************************
	90	*
	91	* FUNCTION: ap_is_valid_checksum
	92	*
	93	* PARAMETERS: table - Pointer to table to be validated
	94	*
	95	* RETURN: TRUE if the checksum appears to be valid. FALSE otherwise.
	96	*
	97	* DESCRIPTION: Check for a valid ACPI table checksum.
	98	*
	99	******************************************************************************/
	100
	101	u8 ap_is_valid_checksum(struct acpi_table_header *table)
	102	{
	103	acpi_status status;
	104	struct acpi_table_rsdp *rsdp;
	105
	106	if (ACPI_VALIDATE_RSDP_SIG(table->signature)) {
	107	/*
	108	* Checksum for RSDP.
	109	* Note: Other checksums are computed during the table dump.
	110	*/
	111	rsdp = ACPI_CAST_PTR(struct acpi_table_rsdp, table);
	112	status = acpi_tb_validate_rsdp(rsdp);
	113	} else {
	114	status = acpi_tb_verify_checksum(table, table->length);
	115	}
	116
	117	if (ACPI_FAILURE(status)) {
dcaff16d LZ	118	acpi_log_error("%4.4s: Warning: wrong checksum in table\n",
dcaff16d LZ	119	table->signature);
506f57dd LZ	120	}
	121
	122	return (AE_OK);
	123	}
	124
	125	/******************************************************************************
	126	*
	127	* FUNCTION: ap_get_table_length
	128	*
	129	* PARAMETERS: table - Pointer to the table
	130	*
	131	* RETURN: Table length
	132	*
	133	* DESCRIPTION: Obtain table length according to table signature.
	134	*
	135	******************************************************************************/
	136
	137	u32 ap_get_table_length(struct acpi_table_header *table)
	138	{
	139	struct acpi_table_rsdp *rsdp;
	140
	141	/* Check if table is valid */
	142
	143	if (!ap_is_valid_header(table)) {
	144	return (0);
	145	}
	146
	147	if (ACPI_VALIDATE_RSDP_SIG(table->signature)) {
	148	rsdp = ACPI_CAST_PTR(struct acpi_table_rsdp, table);
f1b69752	149	return (acpi_tb_get_rsdp_length(rsdp));
506f57dd LZ	150	}
	151
	152	/* Normal ACPI table */
	153
	154	return (table->length);
	155	}
	156
	157	/******************************************************************************
	158	*
	159	* FUNCTION: ap_dump_table_buffer
	160	*
	161	* PARAMETERS: table - ACPI table to be dumped
	162	* instance - ACPI table instance no. to be dumped
	163	* address - Physical address of the table
	164	*
	165	* RETURN: None
	166	*
	167	* DESCRIPTION: Dump an ACPI table in standard ASCII hex format, with a
	168	* header that is compatible with the acpi_xtract utility.
	169	*
	170	******************************************************************************/
	171
	172	static int
	173	ap_dump_table_buffer(struct acpi_table_header *table,
	174	u32 instance, acpi_physical_address address)
	175	{
	176	u32 table_length;
	177
	178	table_length = ap_get_table_length(table);
	179
	180	/* Print only the header if requested */
	181
	182	if (gbl_summary_mode) {
	183	acpi_tb_print_table_header(address, table);
	184	return (0);
	185	}
	186
	187	/* Dump to binary file if requested */
	188
	189	if (gbl_binary_mode) {
	190	return (ap_write_to_binary_file(table, instance));
	191	}
	192
	193	/*
	194	* Dump the table with header for use with acpixtract utility.
	195	* Note: simplest to just always emit a 64-bit address. acpi_xtract
	196	* utility can handle this.
	197	*/
846d6ef4 LZ	198	acpi_ut_file_printf(gbl_output_file, "%4.4s @ 0x%8.8X%8.8X\n",
846d6ef4 LZ	199	table->signature, ACPI_FORMAT_UINT64(address));
506f57dd	200
846d6ef4 LZ	201	acpi_ut_dump_buffer_to_file(gbl_output_file,
	202	ACPI_CAST_PTR(u8, table), table_length,
	203	DB_BYTE_DISPLAY, 0);
	204	acpi_ut_file_printf(gbl_output_file, "\n");
506f57dd LZ	205	return (0);
	206	}
	207
	208	/******************************************************************************
	209	*
	210	* FUNCTION: ap_dump_all_tables
	211	*
	212	* PARAMETERS: None
	213	*
	214	* RETURN: Status
	215	*
	216	* DESCRIPTION: Get all tables from the RSDT/XSDT (or at least all of the
	217	* tables that we can possibly get).
	218	*
	219	******************************************************************************/
	220
	221	int ap_dump_all_tables(void)
	222	{
	223	struct acpi_table_header *table;
	224	u32 instance = 0;
	225	acpi_physical_address address;
	226	acpi_status status;
	227	int table_status;
	228	u32 i;
	229
	230	/* Get and dump all available ACPI tables */
	231
	232	for (i = 0; i < AP_MAX_ACPI_FILES; i++) {
	233	status =
	234	acpi_os_get_table_by_index(i, &table, &instance, &address);
	235	if (ACPI_FAILURE(status)) {
	236
	237	/* AE_LIMIT means that no more tables are available */
	238
	239	if (status == AE_LIMIT) {
	240	return (0);
	241	} else if (i == 0) {
dcaff16d LZ	242	acpi_log_error
	243	("Could not get ACPI tables, %s\n",
	244	acpi_format_exception(status));
506f57dd LZ	245	return (-1);
506f57dd LZ	246	} else {
dcaff16d LZ	247	acpi_log_error
	248	("Could not get ACPI table at index %u, %s\n",
	249	i, acpi_format_exception(status));
506f57dd LZ	250	continue;
	251	}
	252	}
	253
	254	table_status = ap_dump_table_buffer(table, instance, address);
fbee6b21	255	ACPI_FREE(table);
506f57dd LZ	256
	257	if (table_status) {
	258	break;
	259	}
	260	}
	261
	262	/* Something seriously bad happened if the loop terminates here */
	263
	264	return (-1);
	265	}
	266
	267	/******************************************************************************
	268	*
	269	* FUNCTION: ap_dump_table_by_address
	270	*
	271	* PARAMETERS: ascii_address - Address for requested ACPI table
	272	*
	273	* RETURN: Status
	274	*
	275	* DESCRIPTION: Get an ACPI table via a physical address and dump it.
	276	*
	277	******************************************************************************/
	278
	279	int ap_dump_table_by_address(char *ascii_address)
	280	{
	281	acpi_physical_address address;
	282	struct acpi_table_header *table;
	283	acpi_status status;
	284	int table_status;
	285	u64 long_address;
	286
	287	/* Convert argument to an integer physical address */
	288
	289	status = acpi_ut_strtoul64(ascii_address, 0, &long_address);
	290	if (ACPI_FAILURE(status)) {
dcaff16d LZ	291	acpi_log_error("%s: Could not convert to a physical address\n",
dcaff16d LZ	292	ascii_address);
506f57dd LZ	293	return (-1);
	294	}
	295
	296	address = (acpi_physical_address) long_address;
	297	status = acpi_os_get_table_by_address(address, &table);
	298	if (ACPI_FAILURE(status)) {
dcaff16d LZ	299	acpi_log_error("Could not get table at 0x%8.8X%8.8X, %s\n",
	300	ACPI_FORMAT_UINT64(address),
	301	acpi_format_exception(status));
506f57dd LZ	302	return (-1);
	303	}
	304
	305	table_status = ap_dump_table_buffer(table, 0, address);
fbee6b21	306	ACPI_FREE(table);
506f57dd LZ	307	return (table_status);
	308	}
	309
	310	/******************************************************************************
	311	*
	312	* FUNCTION: ap_dump_table_by_name
	313	*
	314	* PARAMETERS: signature - Requested ACPI table signature
	315	*
	316	* RETURN: Status
	317	*
	318	* DESCRIPTION: Get an ACPI table via a signature and dump it. Handles
	319	* multiple tables with the same signature (SSDTs).
	320	*
	321	******************************************************************************/
	322
	323	int ap_dump_table_by_name(char *signature)
	324	{
	325	char local_signature[ACPI_NAME_SIZE + 1];
	326	u32 instance;
	327	struct acpi_table_header *table;
	328	acpi_physical_address address;
	329	acpi_status status;
	330	int table_status;
	331
fbee6b21	332	if (ACPI_STRLEN(signature) != ACPI_NAME_SIZE) {
dcaff16d LZ	333	acpi_log_error
	334	("Invalid table signature [%s]: must be exactly 4 characters\n",
	335	signature);
506f57dd LZ	336	return (-1);
	337	}
	338
	339	/* Table signatures are expected to be uppercase */
	340
fbee6b21	341	ACPI_STRCPY(local_signature, signature);
506f57dd LZ	342	acpi_ut_strupr(local_signature);
	343
	344	/* To be friendly, handle tables whose signatures do not match the name */
	345
	346	if (ACPI_COMPARE_NAME(local_signature, "FADT")) {
fbee6b21	347	ACPI_STRCPY(local_signature, ACPI_SIG_FADT);
506f57dd	348	} else if (ACPI_COMPARE_NAME(local_signature, "MADT")) {
fbee6b21	349	ACPI_STRCPY(local_signature, ACPI_SIG_MADT);
506f57dd LZ	350	}
	351
	352	/* Dump all instances of this signature (to handle multiple SSDTs) */
	353
	354	for (instance = 0; instance < AP_MAX_ACPI_FILES; instance++) {
	355	status = acpi_os_get_table_by_name(local_signature, instance,
	356	&table, &address);
	357	if (ACPI_FAILURE(status)) {
	358
	359	/* AE_LIMIT means that no more tables are available */
	360
	361	if (status == AE_LIMIT) {
	362	return (0);
	363	}
	364
dcaff16d LZ	365	acpi_log_error
	366	("Could not get ACPI table with signature [%s], %s\n",
	367	local_signature, acpi_format_exception(status));
506f57dd LZ	368	return (-1);
	369	}
	370
	371	table_status = ap_dump_table_buffer(table, instance, address);
fbee6b21	372	ACPI_FREE(table);
506f57dd LZ	373
	374	if (table_status) {
	375	break;
	376	}
	377	}
	378
	379	/* Something seriously bad happened if the loop terminates here */
	380
	381	return (-1);
	382	}
	383
	384	/******************************************************************************
	385	*
	386	* FUNCTION: ap_dump_table_from_file
	387	*
	388	* PARAMETERS: pathname - File containing the binary ACPI table
	389	*
	390	* RETURN: Status
	391	*
	392	* DESCRIPTION: Dump an ACPI table from a binary file
	393	*
	394	******************************************************************************/
	395
	396	int ap_dump_table_from_file(char *pathname)
	397	{
	398	struct acpi_table_header *table;
	399	u32 file_size = 0;
	400	int table_status = -1;
	401
	402	/* Get the entire ACPI table from the file */
	403
	404	table = ap_get_table_from_file(pathname, &file_size);
	405	if (!table) {
	406	return (-1);
	407	}
	408
	409	/* File must be at least as long as the table length */
	410
	411	if (table->length > file_size) {
dcaff16d LZ	412	acpi_log_error
	413	("Table length (0x%X) is too large for input file (0x%X) %s\n",
	414	table->length, file_size, pathname);
506f57dd LZ	415	goto exit;
	416	}
	417
	418	if (gbl_verbose_mode) {
dcaff16d LZ	419	acpi_log_error
	420	("Input file: %s contains table [%4.4s], 0x%X (%u) bytes\n",
	421	pathname, table->signature, file_size, file_size);
506f57dd LZ	422	}
	423
	424	table_status = ap_dump_table_buffer(table, 0, 0);
	425
	426	exit:
fbee6b21	427	ACPI_FREE(table);
506f57dd LZ	428	return (table_status);
506f57dd LZ	429	}