arch/powerpc/boot/prom.h

   1 #ifndef _PPC_BOOT_PROM_H_
   2 #define _PPC_BOOT_PROM_H_
   3
   4 typedef void *phandle;
   5 typedef void *ihandle;
   6
   7 extern int (*prom) (void *);
   8 extern phandle chosen_handle;
   9 extern ihandle stdout;
  10
  11 int     call_prom(const char *service, int nargs, int nret, ...);
  12 int     call_prom_ret(const char *service, int nargs, int nret,
  13                       unsigned int *rets, ...);
  14
  15 extern int write(void *handle, void *ptr, int nb);
  16 extern void *claim(unsigned long virt, unsigned long size, unsigned long aln);
  17
  18 static inline void exit(void)
  19 {
  20         call_prom("exit", 0, 0);
  21 }
  22
  23 static inline phandle finddevice(const char *name)
  24 {
  25         return (phandle) call_prom("finddevice", 1, 1, name);
  26 }
  27
  28 static inline int getprop(void *phandle, const char *name,
  29                           void *buf, int buflen)
  30 {
  31         return call_prom("getprop", 4, 1, phandle, name, buf, buflen);
  32 }
  33
  34 #endif                          /* _PPC_BOOT_PROM_H_ */