1 /* 2 * Copyright 2008-2010, François Revol, revol@free.fr. All rights reserved. 3 * Copyright 2003, Axel Dörfler, axeld@pinc-software.de. All rights reserved. 4 * Distributed under the terms of the MIT License. 5 */ 6 7 8 #include <SupportDefs.h> 9 #include <platform/openfirmware/openfirmware.h> 10 #include <util/kernel_cpp.h> 11 12 #include "Handle.h" 13 #include "toscalls.h" 14 15 /* 16 * (X)BIOS supports char and block devices with a separate namespace 17 * for char devs handle is {DEV_PRINTER, ... DEV_CONSOLE, ...} 18 * for block devs handle is either: 19 * - the partition number {0=A:, 2=C:...} in logical mode. 20 * - the drive number {0=A:, 1=B:, 2=ACSI-0, 10=SCSI-0, ...} 21 * in phys mode (RW_NOTRANSLATE). 22 * BlockHandle is in devices.cpp 23 * 24 * XXX: handle network devices ? not sure how TOS net extensions do this 25 * not sure it'll ever be supported anyway. 26 * XXX: BIOSDrive/BIOSHandle : public BlockHandle ? 27 */ 28 29 Handle::Handle(int handle) 30 : 31 fHandle((int16)handle) 32 { 33 } 34 35 36 Handle::Handle(void) 37 : 38 fHandle(DEV_CONSOLE) 39 { 40 } 41 42 43 Handle::~Handle() 44 { 45 } 46 47 48 void 49 Handle::SetHandle(int handle) 50 { 51 fHandle = (int16)handle; 52 } 53 54 55 ssize_t 56 Handle::ReadAt(void *cookie, off_t pos, void *buffer, size_t bufferSize) 57 { 58 return B_ERROR; 59 } 60 61 62 ssize_t 63 Handle::WriteAt(void *cookie, off_t pos, const void *buffer, size_t bufferSize) 64 { 65 return B_ERROR; 66 } 67 68 69 off_t 70 Handle::Size() const 71 { 72 // ToDo: fix this! 73 return 1024LL * 1024 * 1024 * 1024; 74 // 1024 GB 75 } 76