C++ (Cpp) CBPTC19696::decode Examples

Example #1

File: CSBK.cpp Project: zarya/MMDVMHost

CCSBK::CCSBK(const unsigned char* bytes) :
m_CSBKO(CSBKO_NONE),
m_FID(0x00U),
m_bsId(0U),
m_srcId(0U),
m_dstId(0U),
m_valid(false)
{
	assert(bytes != NULL);

	CBPTC19696 bptc;

	unsigned char data[12U];
	bptc.decode(bytes, data);

	data[10U] ^= CSBK_CRC_MASK[0U];
	data[11U] ^= CSBK_CRC_MASK[1U];

	m_valid = CCRC::checkCCITT16(data, 12U);

	m_CSBKO = CSBKO(data[0U] & 0x3FU);
	m_FID   = data[1U];

	switch (m_CSBKO) {
	case CSBKO_BSDWNACT:
		m_bsId  = data[4U] << 16 | data[5U] << 8 | data[6U];
		m_srcId = data[7U] << 16 | data[8U] << 8 | data[9U]; 
		CUtils::dump("Download Activate CSBK", data, 12U);
		break;

	case CSBKO_UUVREQ:
		m_dstId = data[4U] << 16 | data[5U] << 8 | data[6U];
		m_srcId = data[7U] << 16 | data[8U] << 8 | data[9U];
		CUtils::dump("Unit to Unit Service Request CSBK", data, 12U);
		break;

	case CSBKO_UUANSRSP:
		m_dstId = data[4U] << 16 | data[5U] << 8 | data[6U];
		m_srcId = data[7U] << 16 | data[8U] << 8 | data[9U];
		CUtils::dump("Unit to Unit Service Answer Response CSBK", data, 12U);
		break;

	case CSBKO_PRECCSBK:
		m_dstId = data[4U] << 16 | data[5U] << 8 | data[6U];
		m_srcId = data[7U] << 16 | data[8U] << 8 | data[9U];
		CUtils::dump("Preamble CSBK", data, 12U);
		break;

	case CSBKO_NACKRSP:
		m_srcId = data[4U] << 16 | data[5U] << 8 | data[6U];
		m_dstId = data[7U] << 16 | data[8U] << 8 | data[9U];
		CUtils::dump("Negative Acknowledge Response CSBK", data, 12U);
		break;

	default:
		CUtils::dump("Unhandled CSBK type", data, 12U);
		break;
	}
}

Example #2

File: DMRCSBK.cpp Project: ct1jib/MMDVMHost

bool CDMRCSBK::put(const unsigned char* bytes)
{
	assert(bytes != NULL);

	CBPTC19696 bptc;
	bptc.decode(bytes, m_data);

	m_data[10U] ^= CSBK_CRC_MASK[0U];
	m_data[11U] ^= CSBK_CRC_MASK[1U];

	bool valid = CCRC::checkCCITT162(m_data, 12U);
	if (!valid)
		return false;

	// Restore the checksum
	m_data[10U] ^= CSBK_CRC_MASK[0U];
	m_data[11U] ^= CSBK_CRC_MASK[1U];

	m_CSBKO = CSBKO(m_data[0U] & 0x3FU);
	m_FID   = m_data[1U];

	switch (m_CSBKO) {
	case CSBKO_BSDWNACT:
		m_GI    = false;
		m_bsId  = m_data[4U] << 16 | m_data[5U] << 8 | m_data[6U];
		m_srcId = m_data[7U] << 16 | m_data[8U] << 8 | m_data[9U]; 
		m_dataContent = false;
		m_CBF   = 0U;
		CUtils::dump(1U, "Downlink Activate CSBK", m_data, 12U);
		break;

	case CSBKO_UUVREQ:
		m_GI    = false;
		m_dstId = m_data[4U] << 16 | m_data[5U] << 8 | m_data[6U];
		m_srcId = m_data[7U] << 16 | m_data[8U] << 8 | m_data[9U];
		m_dataContent = false;
		m_CBF   = 0U;
		CUtils::dump(1U, "Unit to Unit Service Request CSBK", m_data, 12U);
		break;

	case CSBKO_UUANSRSP:
		m_GI    = false;
		m_dstId = m_data[4U] << 16 | m_data[5U] << 8 | m_data[6U];
		m_srcId = m_data[7U] << 16 | m_data[8U] << 8 | m_data[9U];
		m_dataContent = false;
		m_CBF   = 0U;
		CUtils::dump(1U, "Unit to Unit Service Answer Response CSBK", m_data, 12U);
		break;

	case CSBKO_PRECCSBK:
		m_GI    = (m_data[2U] & 0x40U) == 0x40U;
		m_dstId = m_data[4U] << 16 | m_data[5U] << 8 | m_data[6U];
		m_srcId = m_data[7U] << 16 | m_data[8U] << 8 | m_data[9U];
		m_dataContent = (m_data[2U] & 0x80U) == 0x80U;
		m_CBF   = m_data[3U];
		CUtils::dump(1U, "Preamble CSBK", m_data, 12U);
		break;

	case CSBKO_NACKRSP:
		m_GI    = false;
		m_srcId = m_data[4U] << 16 | m_data[5U] << 8 | m_data[6U];
		m_dstId = m_data[7U] << 16 | m_data[8U] << 8 | m_data[9U];
		m_dataContent = false;
		m_CBF   = 0U;
		CUtils::dump(1U, "Negative Acknowledge Response CSBK", m_data, 12U);
		break;

	default:
		m_GI    = false;
		m_srcId = 0U;
		m_dstId = 0U;
		m_dataContent = false;
		m_CBF = 0U;
		CUtils::dump("Unhandled CSBK type", m_data, 12U);
		return true;
	}

	return true;
}