include/asm-ppc/prom.h

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 1 /*
 2  * Definitions for talking to the Open Firmware PROM on
 3  * Power Macintosh computers.
 4  *
 5  * Copyright (C) 1996 Paul Mackerras.
 6  */
 7
 8 typedefvoid*phandle;
 9 typedefvoid*ihandle;
 10
 11 externchar*prom_display_paths[];
 12 externunsigned int prom_num_displays;
 13
 14 struct address_range {
 15 unsigned int space;
 16 unsigned int address;
 17 unsigned int size;
 18 };
 19
 20 struct interrupt_info {
 21 int line;
 22 int sense;/* +ve/-ve logic, edge or level, etc. */
 23 };
 24
 25 struct reg_property {
 26 unsigned int address;
 27 unsigned int size;
 28 };
 29
 30 struct translation_property {
 31 unsigned int virt;
 32 unsigned int size;
 33 unsigned int phys;
 34 unsigned int flags;
 35 };
 36
 37 struct property {
 38 char*name;
 39 int length;
 40 unsigned char*value;
 41 struct property *next;
 42 };
 43
 44 struct device_node {
 45 char*name;
 46 char*type;
 47  phandle node;
 48 int n_addrs;
 49 struct address_range *addrs;
 50 int n_intrs;
 51 struct interrupt_info *intrs;
 52 char*full_name;
 53 struct property *properties;
 54 struct device_node *parent;
 55 struct device_node *child;
 56 struct device_node *sibling;
 57 struct device_node *next;/* next device of same type */
 58 struct device_node *allnext;/* next in list of all nodes */
 59 };
 60
 61 struct prom_args;
 62 typedefvoid(*prom_entry)(struct prom_args *);
 63
 64 /* Prototypes */
 65 externvoidabort(void);
 66 externvoidprom_init(int,int, prom_entry);
 67 externvoidprom_print(const char*msg);
 68 externvoidfinish_device_tree(void);
 69 externstruct device_node *find_devices(const char*name);
 70 externstruct device_node *find_type_devices(const char*type);
 71 externstruct device_node *find_path_device(const char*path);
 72 externstruct device_node *find_compatible_devices(const char*type,
 73 const char*compat);
 74 externstruct device_node *find_phandle(phandle);
 75 externintdevice_is_compatible(struct device_node *device,const char* compat);
 76 externunsigned char*get_property(struct device_node *node,const char*name,
 77 int*lenp);
 78 externvoidprint_properties(struct device_node *node);
 79 externintcall_rtas(const char*service,int nargs,int nret,
 80 unsigned long*outputs, ...);