prom.h
上传用户:jlfgdled
上传日期:2013-04-10
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文件大小:5k
- #ifndef _PPC64_PROM_H
- #define _PPC64_PROM_H
- /*
- * Definitions for talking to the Open Firmware PROM on
- * Power Macintosh computers.
- *
- * Copyright (C) 1996 Paul Mackerras.
- *
- * Updates for PPC64 by Peter Bergner & David Engebretsen, IBM Corp.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
- #define PTRRELOC(x) ((typeof(x))((unsigned long)(x) - offset))
- #define PTRUNRELOC(x) ((typeof(x))((unsigned long)(x) + offset))
- #define RELOC(x) (*PTRRELOC(&(x)))
- #define LONG_LSW(X) (((unsigned long)X) & 0xffffffff)
- #define LONG_MSW(X) (((unsigned long)X) >> 32)
- typedef u32 phandle;
- typedef void *ihandle;
- typedef u32 phandle32;
- typedef u32 ihandle32;
- extern char *prom_display_paths[];
- extern unsigned int prom_num_displays;
- struct address_range {
- unsigned long space;
- unsigned long address;
- unsigned long size;
- };
- struct interrupt_info {
- int line;
- int sense; /* +ve/-ve logic, edge or level, etc. */
- };
- struct pci_address {
- u32 a_hi;
- u32 a_mid;
- u32 a_lo;
- };
- struct pci_range32 {
- struct pci_address child_addr;
- unsigned int parent_addr;
- unsigned long size;
- };
- struct pci_range64 {
- struct pci_address child_addr;
- unsigned long parent_addr;
- unsigned long size;
- };
- union pci_range {
- struct {
- struct pci_address addr;
- u32 phys;
- u32 size_hi;
- } pci32;
- struct {
- struct pci_address addr;
- u32 phys_hi;
- u32 phys_lo;
- u32 size_hi;
- u32 size_lo;
- } pci64;
- };
- struct _of_tce_table {
- phandle node;
- unsigned long base;
- unsigned long size;
- };
- struct reg_property {
- unsigned long address;
- unsigned long size;
- };
- struct reg_property32 {
- unsigned int address;
- unsigned int size;
- };
- struct reg_property64 {
- unsigned long address;
- unsigned long size;
- };
- struct translation_property {
- unsigned long virt;
- unsigned long size;
- unsigned long phys;
- unsigned int flags;
- };
- struct property {
- char *name;
- int length;
- unsigned char *value;
- struct property *next;
- };
- /* NOTE: the device_node contains PCI specific info for pci devices.
- * This perhaps could be hung off the device_node with another struct,
- * but for now it is directly in the node. The phb ptr is a good
- * indication of a real PCI node. Other nodes leave these fields zeroed.
- */
- struct pci_controller;
- struct TceTable;
- struct device_node {
- char *name;
- char *type;
- phandle node;
- int n_addrs;
- struct address_range *addrs;
- int n_intrs;
- struct interrupt_info *intrs;
- char *full_name;
- int busno; /* for pci devices */
- int devfn; /* for pci devices */
- struct pci_controller *phb; /* for pci devices */
- struct TceTable *tce_table; /* for phb's or bridges */
- #define DN_STATUS_BIST_FAILED (1<<0)
- struct property *properties;
- struct device_node *parent;
- struct device_node *child;
- struct device_node *sibling;
- struct device_node *next; /* next device of same type */
- struct device_node *allnext; /* next in list of all nodes */
- };
- typedef u32 prom_arg_t;
- struct prom_args {
- u32 service;
- u32 nargs;
- u32 nret;
- prom_arg_t args[10];
- prom_arg_t *rets; /* Pointer to return values in args[16]. */
- };
- typedef struct {
- u32 printf; /* void (*printf)(char *, ...); */
- u32 memdump; /* void (*memdump)(unsigned char *, unsigned long); */
- u32 dummy; /* void (*dummy)(void); */
- } yaboot_debug_t;
- struct prom_t {
- unsigned long entry;
- ihandle chosen;
- int cpu;
- ihandle stdout;
- ihandle disp_node;
- struct prom_args args;
- unsigned long version;
- unsigned long encode_phys_size;
- struct bi_record *bi_recs;
- #ifdef DEBUG_YABOOT
- yaboot_debug_t *yaboot;
- #endif
- };
- extern struct prom_t prom;
- /* Prototypes */
- extern void abort(void);
- extern unsigned long prom_init(unsigned long, unsigned long, unsigned long,
- unsigned long, unsigned long, yaboot_debug_t *);
- extern void prom_print(const char *msg);
- extern void relocate_nodes(void);
- extern void finish_device_tree(void);
- extern struct device_node *find_devices(const char *name);
- extern struct device_node *find_type_devices(const char *type);
- extern struct device_node *find_path_device(const char *path);
- extern struct device_node *find_compatible_devices(const char *type,
- const char *compat);
- extern struct device_node *find_pci_device_OFnode(unsigned char bus,
- unsigned char dev_fn);
- extern struct device_node *find_all_nodes(void);
- extern int device_is_compatible(struct device_node *device, const char *);
- extern int machine_is_compatible(const char *compat);
- extern unsigned char *get_property(struct device_node *node, const char *name,
- int *lenp);
- extern void print_properties(struct device_node *node);
- extern int prom_n_addr_cells(struct device_node* np);
- extern int prom_n_size_cells(struct device_node* np);
- extern void prom_get_irq_senses(unsigned char *senses, int off, int max);
- #endif /* _PPC64_PROM_H */