1 /* 2 * Copyright 2003, Axel Dörfler, axeld@pinc-software.de. All rights reserved. 3 * Distributed under the terms of the MIT License. 4 */ 5 #ifndef OPEN_FIRMWARE_H 6 #define OPEN_FIRMWARE_H 7 8 9 #include <SupportDefs.h> 10 11 12 #define OF_FAILED (-1) 13 14 15 /* global device tree/properties access */ 16 extern int gChosen; 17 18 19 template<typename AddressType> 20 struct of_region { 21 AddressType base; 22 uint32 size; 23 } _PACKED; 24 25 struct of_arguments { 26 const char *name; 27 int num_args; 28 int num_returns; 29 int data[0]; 30 31 #ifdef __cplusplus 32 int &Argument(int index) { return data[index]; } 33 int &ReturnValue(int index) { return data[num_args + index]; } 34 #endif 35 }; 36 37 38 #ifdef __cplusplus 39 extern "C" { 40 #endif 41 42 extern status_t of_init(int (*openFirmwareEntry)(void *)); 43 44 /* device tree functions */ 45 extern int of_finddevice(const char *device); 46 extern int of_child(int node); 47 extern int of_peer(int node); 48 extern int of_parent(int node); 49 extern int of_instance_to_path(int instance, char *pathBuffer, int bufferSize); 50 extern int of_instance_to_package(int instance); 51 extern int of_getprop(int package, const char *property, void *buffer, 52 int bufferSize); 53 extern int of_setprop(int package, const char *property, const void *buffer, 54 int bufferSize); 55 extern int of_nextprop(int package, const char *previousProperty, 56 char *nextProperty); 57 extern int of_getproplen(int package, const char *property); 58 extern int of_package_to_path(int package, char *pathBuffer, int bufferSize); 59 60 /* I/O functions */ 61 extern int of_open(const char *nodeName); 62 extern void of_close(int handle); 63 extern int of_read(int handle, void *buffer, int bufferSize); 64 extern int of_write(int handle, const void *buffer, int bufferSize); 65 extern int of_seek(int handle, off_t pos); 66 67 /* memory functions */ 68 extern int of_release(void *virtualAddress, int size); 69 extern void *of_claim(void *virtualAddress, int size, int align); 70 71 /* misc functions */ 72 extern int of_call_client_function(const char *method, int numArgs, 73 int numReturns, ...); 74 extern int of_interpret(const char *command, int numArgs, int numReturns, ...); 75 extern int of_call_method(int handle, const char *method, int numArgs, 76 int numReturns, ...); 77 extern int of_test(const char *service); 78 extern int of_milliseconds(void); 79 extern void of_exit(void); 80 81 #ifdef __cplusplus 82 } 83 #endif 84 85 #endif /* OPEN_FIRMWARE_H */ 86