hal_api.h

这是motorola公司的powerpc芯片上的嵌入式linux上的驱动程序和测试程序

#ifndef _HAL_API_H_
#define _HAL_API_H_

#ifndef U8
#define  U8  unsigned char
#endif
#ifndef U16
#define  U16 unsigned short 
#endif
#ifndef U32
#define  U32 unsigned int 
#endif
#ifndef S8
#define  S8 signed char
#endif
#ifndef S16
#define  S16 signed short 
#endif
#ifndef S32
#define  S32 signed int  
#endif

#define MEM_ACCESS_OUT_RANGE  -10
#define MEM_ACCESS_RO         -5
#define MEM_ACCESS_FAILED     -1
#define MEM_ACCESS_SUCCESS     0
#define MEM_ACCESS_WR          1

extern int hal_reg_module_init();
extern void hal_reg_module_release();
extern int hal_reg_read(U32 addr, U32 *value);
extern int hal_reg_write(U32 addr, U32* value);

extern int hal_reg_BitSet(U32 addr, U32 bit);
extern int hal_reg_BitClear(U32 addr, U32 bit);

#endif