changes to communication
Fork of XBeeLib by
Diff: IO/IOSampleZB.cpp
- Revision:
- 0:fcaad0dfa051
- Child:
- 3:8662ebe83570
diff -r 000000000000 -r fcaad0dfa051 IO/IOSampleZB.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/IO/IOSampleZB.cpp Fri May 08 11:50:56 2015 +0200 @@ -0,0 +1,69 @@ +#include "XBeeLib.h" +#include "IO/IOSampleZB.h" + +#define IO_SAMPLE_ZB_MIN_SIZE (2 + 1 + 2) + +using namespace XBeeLib; + +IOSampleZB::IOSampleZB(const uint8_t* const raw_data, size_t size) +{ + assert(size >= IO_SAMPLE_ZB_MIN_SIZE); + assert(size <= sizeof _sampled_data); + + _digital_mask = UINT16(raw_data[1], raw_data[2]); + _analog_mask = raw_data[3]; + _sampled_data_size = size - 4; + memcpy(&_sampled_data[0], &raw_data[4], _sampled_data_size); +} + +IOSampleZB::~IOSampleZB() +{ + +} + +RadioStatus IOSampleZB::get_dio(XBeeZB::IoLine line, DioVal* const dio_value) const +{ + const uint16_t mask = 1 << line; + if (mask & _digital_mask) { + const uint16_t digital_channels = get_digital_channels(); + + *dio_value = digital_channels & mask ? High : Low; + return Success; + } + return Failure; +} + +RadioStatus IOSampleZB::get_adc(XBeeZB::IoLine line, uint16_t* const val) const +{ + const uint8_t line_mask = 1 << line; + const bool adc_present = line_mask & _analog_mask; + if (!adc_present) { + return Failure; + } + + uint8_t analog_data_idx = _digital_mask == 0 ? 0 : 2; + uint8_t line_sample = 0; + + while (analog_data_idx < _sampled_data_size) { + if (_analog_mask & (1 << line_sample)) { + if (line_sample == line) { + /* Write the analog value */ + *val = UINT16(_sampled_data[analog_data_idx], _sampled_data[analog_data_idx + 1]); + break; + } + analog_data_idx += 2; + } + line_sample++; + } + + return Success; +} + +inline uint16_t IOSampleZB::get_digital_channels(void) const +{ + if (_digital_mask == 0) { + return 0; + } + return UINT16(_sampled_data[0], _sampled_data[1]); +} +