diff options
Diffstat (limited to 'drivers/acpi/tables/tbrsdt.c')
| -rw-r--r-- | drivers/acpi/tables/tbrsdt.c | 288 |
1 files changed, 0 insertions, 288 deletions
diff --git a/drivers/acpi/tables/tbrsdt.c b/drivers/acpi/tables/tbrsdt.c deleted file mode 100644 index ad0252c2f7d..00000000000 --- a/drivers/acpi/tables/tbrsdt.c +++ /dev/null @@ -1,288 +0,0 @@ -/****************************************************************************** - * - * Module Name: tbrsdt - ACPI RSDT table 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/actables.h> - -#define _COMPONENT ACPI_TABLES -ACPI_MODULE_NAME("tbrsdt") - -/******************************************************************************* - * - * FUNCTION: acpi_tb_verify_rsdp - * - * PARAMETERS: Address - RSDP (Pointer to RSDT) - * - * RETURN: Status - * - * DESCRIPTION: Load and validate the RSDP (ptr) and RSDT (table) - * - ******************************************************************************/ -acpi_status acpi_tb_verify_rsdp(struct acpi_pointer *address) -{ - struct acpi_table_desc table_info; - acpi_status status; - struct rsdp_descriptor *rsdp; - - ACPI_FUNCTION_TRACE("tb_verify_rsdp"); - - switch (address->pointer_type) { - case ACPI_LOGICAL_POINTER: - - rsdp = address->pointer.logical; - break; - - case ACPI_PHYSICAL_POINTER: - /* - * Obtain access to the RSDP structure - */ - status = acpi_os_map_memory(address->pointer.physical, - sizeof(struct rsdp_descriptor), - (void *)&rsdp); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - break; - - default: - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Verify RSDP signature and checksum */ - - status = acpi_tb_validate_rsdp(rsdp); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - /* The RSDP supplied is OK */ - - table_info.pointer = ACPI_CAST_PTR(struct acpi_table_header, rsdp); - table_info.length = sizeof(struct rsdp_descriptor); - table_info.allocation = ACPI_MEM_MAPPED; - - /* Save the table pointers and allocation info */ - - status = acpi_tb_init_table_descriptor(ACPI_TABLE_RSDP, &table_info); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - /* Save the RSDP in a global for easy access */ - - acpi_gbl_RSDP = - ACPI_CAST_PTR(struct rsdp_descriptor, table_info.pointer); - return_ACPI_STATUS(status); - - /* Error exit */ - cleanup: - - if (acpi_gbl_table_flags & ACPI_PHYSICAL_POINTER) { - acpi_os_unmap_memory(rsdp, sizeof(struct rsdp_descriptor)); - } - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_get_rsdt_address - * - * PARAMETERS: out_address - Where the address is returned - * - * RETURN: None, Address - * - * DESCRIPTION: Extract the address of either the RSDT or XSDT, depending on the - * version of the RSDP and whether the XSDT pointer is valid - * - ******************************************************************************/ - -void acpi_tb_get_rsdt_address(struct acpi_pointer *out_address) -{ - - ACPI_FUNCTION_ENTRY(); - - out_address->pointer_type = - acpi_gbl_table_flags | ACPI_LOGICAL_ADDRESSING; - - /* Use XSDT if it is present */ - - if ((acpi_gbl_RSDP->revision >= 2) && - acpi_gbl_RSDP->xsdt_physical_address) { - out_address->pointer.value = - acpi_gbl_RSDP->xsdt_physical_address; - acpi_gbl_root_table_type = ACPI_TABLE_TYPE_XSDT; - } else { - /* No XSDT, use the RSDT */ - - out_address->pointer.value = - acpi_gbl_RSDP->rsdt_physical_address; - acpi_gbl_root_table_type = ACPI_TABLE_TYPE_RSDT; - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_validate_rsdt - * - * PARAMETERS: table_ptr - Addressable pointer to the RSDT. - * - * RETURN: Status - * - * DESCRIPTION: Validate signature for the RSDT or XSDT - * - ******************************************************************************/ - -acpi_status acpi_tb_validate_rsdt(struct acpi_table_header *table_ptr) -{ - int no_match; - - ACPI_FUNCTION_NAME("tb_validate_rsdt"); - - /* - * Search for appropriate signature, RSDT or XSDT - */ - if (acpi_gbl_root_table_type == ACPI_TABLE_TYPE_RSDT) { - no_match = ACPI_STRNCMP((char *)table_ptr, RSDT_SIG, - sizeof(RSDT_SIG) - 1); - } else { - no_match = ACPI_STRNCMP((char *)table_ptr, XSDT_SIG, - sizeof(XSDT_SIG) - 1); - } - - if (no_match) { - /* Invalid RSDT or XSDT signature */ - - ACPI_REPORT_ERROR(("Invalid signature where RSDP indicates RSDT/XSDT should be located\n")); - - ACPI_DUMP_BUFFER(acpi_gbl_RSDP, 20); - - ACPI_DEBUG_PRINT_RAW((ACPI_DB_ERROR, - "RSDT/XSDT signature at %X (%p) is invalid\n", - acpi_gbl_RSDP->rsdt_physical_address, - (void *)(acpi_native_uint) acpi_gbl_RSDP-> - rsdt_physical_address)); - - if (acpi_gbl_root_table_type == ACPI_TABLE_TYPE_RSDT) { - ACPI_REPORT_ERROR(("Looking for RSDT\n")) - } else { - ACPI_REPORT_ERROR(("Looking for XSDT\n")) - } - - ACPI_DUMP_BUFFER((char *)table_ptr, 48); - - return (AE_BAD_SIGNATURE); - } - - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_get_table_rsdt - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Load and validate the RSDP (ptr) and RSDT (table) - * - ******************************************************************************/ - -acpi_status acpi_tb_get_table_rsdt(void) -{ - struct acpi_table_desc table_info; - acpi_status status; - struct acpi_pointer address; - - ACPI_FUNCTION_TRACE("tb_get_table_rsdt"); - - /* Get the RSDT/XSDT via the RSDP */ - - acpi_tb_get_rsdt_address(&address); - - table_info.type = ACPI_TABLE_XSDT; - status = acpi_tb_get_table(&address, &table_info); - if (ACPI_FAILURE(status)) { - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "Could not get the RSDT/XSDT, %s\n", - acpi_format_exception(status))); - - return_ACPI_STATUS(status); - } - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "RSDP located at %p, points to RSDT physical=%8.8X%8.8X \n", - acpi_gbl_RSDP, - ACPI_FORMAT_UINT64(address.pointer.value))); - - /* Check the RSDT or XSDT signature */ - - status = acpi_tb_validate_rsdt(table_info.pointer); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Get the number of tables defined in the RSDT or XSDT */ - - acpi_gbl_rsdt_table_count = acpi_tb_get_table_count(acpi_gbl_RSDP, - table_info.pointer); - - /* Convert and/or copy to an XSDT structure */ - - status = acpi_tb_convert_to_xsdt(&table_info); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Save the table pointers and allocation info */ - - status = acpi_tb_init_table_descriptor(ACPI_TABLE_XSDT, &table_info); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - acpi_gbl_XSDT = ACPI_CAST_PTR(XSDT_DESCRIPTOR, table_info.pointer); - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "XSDT located at %p\n", acpi_gbl_XSDT)); - return_ACPI_STATUS(status); -} |