1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include "dt_table.h" 18 19 #include <memory.h> 20 21 #include "libacpi.h" 22 #include "libfdt.h" 23 #include "libufdt_sysdeps.h" 24 dt_table_header_init(struct dt_table_header * header,enum DT_TYPE dt_type)25void dt_table_header_init(struct dt_table_header *header, enum DT_TYPE dt_type) { 26 const uint32_t header_size = sizeof(struct dt_table_header); 27 const uint32_t entry_size = sizeof(struct dt_table_entry); 28 29 dto_memset(header, 0, header_size); 30 if (dt_type == ACPI) 31 header->magic = cpu_to_fdt32(ACPI_TABLE_MAGIC); 32 else 33 header->magic = cpu_to_fdt32(DT_TABLE_MAGIC); 34 35 header->total_size = cpu_to_fdt32(header_size); 36 header->header_size = cpu_to_fdt32(header_size); 37 header->dt_entry_size = cpu_to_fdt32(entry_size); 38 header->dt_entries_offset = cpu_to_fdt32(header_size); 39 header->page_size = cpu_to_fdt32(DT_TABLE_DEFAULT_PAGE_SIZE); 40 header->version = cpu_to_fdt32(DT_TABLE_DEFAULT_VERSION); 41 } 42