1 /* 2 ** Copyright 2003, Axel Dörfler, axeld@pinc-software.de. All rights reserved. 3 ** Distributed under the terms of the OpenBeOS License. 4 */ 5 #ifndef APPLE_H 6 #define APPLE_H 7 8 9 #include "SupportDefs.h" 10 #include "ByteOrder.h" 11 12 13 enum apple_signature { 14 kDriverDescriptorSignature = 'ER', 15 kPartitionMapSignature = 'PM', 16 kObsoletePartitionMapSignature = 'TS', 17 }; 18 19 20 struct apple_driver_descriptor { 21 int16 signature; 22 int16 block_size; 23 int32 block_count; 24 int16 type; // reserved 25 int16 id; // " 26 int32 data; // " 27 int16 descriptor_count; 28 int32 driver_block; 29 int16 driver_size; 30 int16 os_type; // operating system type 31 32 int16 BlockSize() { return B_BENDIAN_TO_HOST_INT16(block_size); } 33 int32 BlockCount() { return B_BENDIAN_TO_HOST_INT32(block_count); } 34 35 bool HasValidSignature() { return B_BENDIAN_TO_HOST_INT16(signature) == kDriverDescriptorSignature; } 36 }; 37 38 struct apple_partition_map { 39 int16 signature; 40 int16 _reserved0; 41 int32 map_block_count; 42 int32 start; // in blocks 43 int32 size; 44 char name[32]; 45 char type[32]; 46 int32 data_start; // in blocks 47 int32 data_size; 48 int32 status; 49 int32 boot_start; 50 int32 boot_size; 51 int32 boot_address; 52 int32 _reserved1; 53 int32 boot_entry; 54 int32 _reserved2; 55 int32 boot_code_checksum; 56 char processor_type[16]; 57 58 int32 StartBlock() { return B_BENDIAN_TO_HOST_INT32(start); } 59 int32 BlockCount() { return B_BENDIAN_TO_HOST_INT32(size); } 60 uint64 Start(apple_driver_descriptor &descriptor) { return StartBlock() * descriptor.BlockSize(); } 61 uint64 Size(apple_driver_descriptor &descriptor) { return BlockCount() * descriptor.BlockSize(); } 62 63 bool HasValidSignature(); 64 }; 65 66 67 inline bool 68 apple_partition_map::HasValidSignature() 69 { 70 int16 sig = B_BENDIAN_TO_HOST_INT16(signature); 71 72 return sig == kPartitionMapSignature 73 || sig == kObsoletePartitionMapSignature; 74 } 75 76 77 enum partition_status { 78 kPartitionIsValid = 0x00000001, 79 kPartitionIsAllocated = 0x00000002, 80 kPartitionIsInUse = 0x00000004, 81 kPartitionIsBootValid = 0x00000008, 82 kPartitionIsReadable = 0x00000010, 83 kPartitionAUXIsWriteable = 0x00000020, // dunno why IsWriteable is here twice... 84 kPartitionIsBootPIC = 0x00000040, 85 kPartitionIsWriteable = 0x00000020, 86 kPartitionIsMounted = 0x40000000, 87 kPartitionIsStartup = 0x80000000, 88 kPartitionIsChainCompatible = 0x00000100, 89 kPartitionIsRealDeviceDriver = 0x00000200, 90 kPartitionCanChainToNext = 0x00000400, 91 }; 92 93 #endif /* APPLE_H */ 94