diff options
Diffstat (limited to 'drivers/acpi/acpica/tbutils.c')
| -rw-r--r-- | drivers/acpi/acpica/tbutils.c | 191 |
1 files changed, 1 insertions, 190 deletions
diff --git a/drivers/acpi/acpica/tbutils.c b/drivers/acpi/acpica/tbutils.c index ce3d5db..bffdfc7 100644 --- a/drivers/acpi/acpica/tbutils.c +++ b/drivers/acpi/acpica/tbutils.c @@ -1,6 +1,6 @@ /****************************************************************************** * - * Module Name: tbutils - table utilities + * Module Name: tbutils - ACPI Table utilities * *****************************************************************************/ @@ -49,12 +49,6 @@ ACPI_MODULE_NAME("tbutils") /* Local prototypes */ -static void acpi_tb_fix_string(char *string, acpi_size length); - -static void -acpi_tb_cleanup_table_header(struct acpi_table_header *out_header, - struct acpi_table_header *header); - static acpi_physical_address acpi_tb_get_root_table_entry(u8 *table_entry, u32 table_entry_size); @@ -176,189 +170,6 @@ u8 acpi_tb_tables_loaded(void) /******************************************************************************* * - * FUNCTION: acpi_tb_fix_string - * - * PARAMETERS: string - String to be repaired - * length - Maximum length - * - * RETURN: None - * - * DESCRIPTION: Replace every non-printable or non-ascii byte in the string - * with a question mark '?'. - * - ******************************************************************************/ - -static void acpi_tb_fix_string(char *string, acpi_size length) -{ - - while (length && *string) { - if (!ACPI_IS_PRINT(*string)) { - *string = '?'; - } - string++; - length--; - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_cleanup_table_header - * - * PARAMETERS: out_header - Where the cleaned header is returned - * header - Input ACPI table header - * - * RETURN: Returns the cleaned header in out_header - * - * DESCRIPTION: Copy the table header and ensure that all "string" fields in - * the header consist of printable characters. - * - ******************************************************************************/ - -static void -acpi_tb_cleanup_table_header(struct acpi_table_header *out_header, - struct acpi_table_header *header) -{ - - ACPI_MEMCPY(out_header, header, sizeof(struct acpi_table_header)); - - acpi_tb_fix_string(out_header->signature, ACPI_NAME_SIZE); - acpi_tb_fix_string(out_header->oem_id, ACPI_OEM_ID_SIZE); - acpi_tb_fix_string(out_header->oem_table_id, ACPI_OEM_TABLE_ID_SIZE); - acpi_tb_fix_string(out_header->asl_compiler_id, ACPI_NAME_SIZE); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_print_table_header - * - * PARAMETERS: address - Table physical address - * header - Table header - * - * RETURN: None - * - * DESCRIPTION: Print an ACPI table header. Special cases for FACS and RSDP. - * - ******************************************************************************/ - -void -acpi_tb_print_table_header(acpi_physical_address address, - struct acpi_table_header *header) -{ - struct acpi_table_header local_header; - - /* - * The reason that the Address is cast to a void pointer is so that we - * can use %p which will work properly on both 32-bit and 64-bit hosts. - */ - if (ACPI_COMPARE_NAME(header->signature, ACPI_SIG_FACS)) { - - /* FACS only has signature and length fields */ - - ACPI_INFO((AE_INFO, "%4.4s %p %05X", - header->signature, ACPI_CAST_PTR(void, address), - header->length)); - } else if (ACPI_COMPARE_NAME(header->signature, ACPI_SIG_RSDP)) { - - /* RSDP has no common fields */ - - ACPI_MEMCPY(local_header.oem_id, - ACPI_CAST_PTR(struct acpi_table_rsdp, - header)->oem_id, ACPI_OEM_ID_SIZE); - acpi_tb_fix_string(local_header.oem_id, ACPI_OEM_ID_SIZE); - - ACPI_INFO((AE_INFO, "RSDP %p %05X (v%.2d %6.6s)", - ACPI_CAST_PTR (void, address), - (ACPI_CAST_PTR(struct acpi_table_rsdp, header)-> - revision > - 0) ? ACPI_CAST_PTR(struct acpi_table_rsdp, - header)->length : 20, - ACPI_CAST_PTR(struct acpi_table_rsdp, - header)->revision, - local_header.oem_id)); - } else { - /* Standard ACPI table with full common header */ - - acpi_tb_cleanup_table_header(&local_header, header); - - ACPI_INFO((AE_INFO, - "%4.4s %p %05X (v%.2d %6.6s %8.8s %08X %4.4s %08X)", - local_header.signature, ACPI_CAST_PTR(void, address), - local_header.length, local_header.revision, - local_header.oem_id, local_header.oem_table_id, - local_header.oem_revision, - local_header.asl_compiler_id, - local_header.asl_compiler_revision)); - - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_validate_checksum - * - * PARAMETERS: table - ACPI table to verify - * length - Length of entire table - * - * RETURN: Status - * - * DESCRIPTION: Verifies that the table checksums to zero. Optionally returns - * exception on bad checksum. - * - ******************************************************************************/ - -acpi_status acpi_tb_verify_checksum(struct acpi_table_header *table, u32 length) -{ - u8 checksum; - - /* Compute the checksum on the table */ - - checksum = acpi_tb_checksum(ACPI_CAST_PTR(u8, table), length); - - /* Checksum ok? (should be zero) */ - - if (checksum) { - ACPI_BIOS_WARNING((AE_INFO, - "Incorrect checksum in table [%4.4s] - 0x%2.2X, " - "should be 0x%2.2X", - table->signature, table->checksum, - (u8)(table->checksum - checksum))); - -#if (ACPI_CHECKSUM_ABORT) - - return (AE_BAD_CHECKSUM); -#endif - } - - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_checksum - * - * PARAMETERS: buffer - Pointer to memory region to be checked - * length - Length of this memory region - * - * RETURN: Checksum (u8) - * - * DESCRIPTION: Calculates circular checksum of memory region. - * - ******************************************************************************/ - -u8 acpi_tb_checksum(u8 *buffer, u32 length) -{ - u8 sum = 0; - u8 *end = buffer + length; - - while (buffer < end) { - sum = (u8) (sum + *(buffer++)); - } - - return (sum); -} - -/******************************************************************************* - * * FUNCTION: acpi_tb_check_dsdt_header * * PARAMETERS: None |