mrf.h

   1 #ifndef __MRF__
   2 #define __MRF__
   3
   4 #include <mrf/defs.h>
   5
   6 uint8_t mrf_read_short_addr(uint8_t addr);
   7 uint8_t mrf_read_long_addr(uint16_t addr);
   8 void mrf_write_short_addr(uint8_t addr, uint8_t val);
   9 void mrf_write_long_addr(uint16_t addr, uint8_t val);
  10 void mrf_init();
  11
  12 // wrapper function, with constant addr parameter and optimization compiles into
  13 // direct call to appropriate function
  14 __attribute__ ((always_inline)) static void
  15 mrf_set_reg(uint16_t addr, uint8_t val)
  16 {
  17    if(addr < 0x100)
  18       mrf_write_short_addr(addr, val);
  19    else
  20       mrf_write_long_addr(addr, val);
  21 }
  22
  23 // wrapper function, with constant addr parameter and optimization compiles into
  24 // direct call to appropriate function
  25 __attribute__ ((always_inline)) static uint8_t
  26 mrf_get_reg(uint16_t addr)
  27 {
  28    if(addr < 0x100)
  29       return mrf_read_short_addr(addr);
  30    else
  31       return mrf_read_long_addr(addr);
  32 }
  33
  34 // tx power, val must be: 0x0 - 0x1F, val = 0x0 is max power
  35 static inline void mrf_set_small_scale_tx_power(uint8_t val)
  36 {
  37    mrf_set_reg(MRF_R_RFCTRL3, val<<3);
  38 }
  39
  40 // set channel, ch must be: 0x0 - 0xF
  41 static inline void mrf_set_channel(uint8_t ch)
  42 {
  43    mrf_set_reg(MRF_R_RFCTRL0, ch<<4);
  44 }
  45
  46 // get txretry number
  47 static inline uint8_t mrf_get_txretry()
  48 {
  49    return mrf_get_reg(MRF_R_TXSR) >> 6;
  50 }
  51
  52 #endif // __MRF__