diff options
Diffstat (limited to 'drivers/acpi/tables/tbrsdt.c')
| -rw-r--r-- | drivers/acpi/tables/tbrsdt.c | 329 |
1 files changed, 0 insertions, 329 deletions
diff --git a/drivers/acpi/tables/tbrsdt.c b/drivers/acpi/tables/tbrsdt.c deleted file mode 100644 index b7ffe39c362..00000000000 --- a/drivers/acpi/tables/tbrsdt.c +++ /dev/null @@ -1,329 +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); - } - - /* - * The signature and checksum must both be correct - */ - if (ACPI_STRNCMP ((char *) rsdp, RSDP_SIG, sizeof (RSDP_SIG)-1) != 0) { - /* Nope, BAD Signature */ - - status = AE_BAD_SIGNATURE; - goto cleanup; - } - - /* Check the standard checksum */ - - if (acpi_tb_checksum (rsdp, ACPI_RSDP_CHECKSUM_LENGTH) != 0) { - status = AE_BAD_CHECKSUM; - goto cleanup; - } - - /* Check extended checksum if table version >= 2 */ - - if (rsdp->revision >= 2) { - if (acpi_tb_checksum (rsdp, ACPI_RSDP_XCHECKSUM_LENGTH) != 0) { - status = AE_BAD_CHECKSUM; - 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 the RSDT or XSDT, depending on the - * version of the RSDP - * - ******************************************************************************/ - -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; - - /* - * For RSDP revision 0 or 1, we use the RSDT. - * For RSDP revision 2 (and above), we use the XSDT - */ - if (acpi_gbl_RSDP->revision < 2) { - out_address->pointer.value = acpi_gbl_RSDP->rsdt_physical_address; - } - else { - out_address->pointer.value = - acpi_gbl_RSDP->xsdt_physical_address; - } -} - - -/******************************************************************************* - * - * 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"); - - - /* - * For RSDP revision 0 or 1, we use the RSDT. - * For RSDP revision 2 and above, we use the XSDT - */ - if (acpi_gbl_RSDP->revision < 2) { - 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_RSDP->revision < 2) { - ACPI_REPORT_ERROR (("Looking for RSDT (RSDP->Rev < 2)\n")) - } - else { - ACPI_REPORT_ERROR (("Looking for XSDT (RSDP->Rev >= 2)\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); -} - - |
