rpp/include/sys/hw_reg_access.h

   1 /*
   2  * hw_reg_access.h.h
   3  */
   4
   5 /* Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
   6  * ALL RIGHTS RESERVED
   7  */
   8
   9 #ifndef _HW_REG_ACCESS_H_
  10 #define _HW_REG_ACCESS_H_
  11
  12 //*****************************************************************************
  13 //
  14 // Macros for hardware access, both direct and via the bit-band region.
  15 //
  16 //*****************************************************************************
  17 #define HWREG(x)                                                              \
  18         (*((volatile unsigned int *)(x)))
  19 #define HWREGH(x)                                                             \
  20         (*((volatile unsigned short *)(x)))
  21 #define HWREGB(x)                                                             \
  22         (*((volatile unsigned char *)(x)))
  23 #define HWREGBITW(x, b)                                                       \
  24         HWREG(((unsigned int)(x) & 0xF0000000) | 0x02000000 |                \
  25               (((unsigned int)(x) & 0x000FFFFF) << 5) | ((b) << 2))
  26 #define HWREGBITH(x, b)                                                       \
  27         HWREGH(((unsigned int)(x) & 0xF0000000) | 0x02000000 |               \
  28                (((unsigned int)(x) & 0x000FFFFF) << 5) | ((b) << 2))
  29 #define HWREGBITB(x, b)                                                       \
  30         HWREGB(((unsigned int)(x) & 0xF0000000) | 0x02000000 |               \
  31                (((unsigned int)(x) & 0x000FFFFF) << 5) | ((b) << 2))
  32
  33
  34
  35 #endif // __HW_TYPES_H__