/**
* @ingroup DEV
*
* @param dmx_device_info
*/
static void mcp23s08_init(dmx_device_info_t * dmx_device_info) {
#ifdef DEBUG
printf("device init <mcp23s08>\n");
#endif
mcp23s08_start(&(dmx_device_info->device_info));
mcp23s08_reg_write(&dmx_device_info->device_info, MCP23S08_IODIR, 0x00);
mcp23s08_reg_write(&dmx_device_info->device_info, MCP23S08_GPIO, 0x00);
}
bool RDMSubDeviceMCP23S08::Initialize(void) {
const bool IsConnected = mcp23s08_start(&m_tDeviceInfo);
if (IsConnected) {
mcp23s08_reg_write(&m_tDeviceInfo, MCP23S08_IODIR, 0x00);
mcp23s08_reg_write(&m_tDeviceInfo, MCP23S08_GPIO, 0x00);
}
#ifndef NDEBUG
printf("%s:%s IsConnected=%d\n", __FILE__, __FUNCTION__, (int) IsConnected);
#endif
return IsConnected;
}
void RDMSubDeviceMCP23S08::Data(const uint8_t* pData, uint16_t nLength) {
uint8_t nData = 0;
const uint16_t nDmxStartAddress = GetDmxStartAddress();
for (uint32_t i = nDmxStartAddress - 1, j = 0; (i < nLength) && (j < DMX_FOOTPRINT); i++, j++) {
if ((pData[i] & (uint8_t) 0x80) != 0) { // 0-127 is off, 128-255 is on
nData = nData | (uint8_t) (1 << j);
}
}
#ifndef NDEBUG
printf("%s:%s m_nData=%x, nData=%x\n", __FILE__, __FUNCTION__, m_nData, nData);
#endif
if (m_nData != nData) {
mcp23s08_reg_write(&m_tDeviceInfo, MCP23S08_GPIO, nData);
m_nData = nData;
}
}
/**
* @ingroup DEV
*
* @param dmx_device_info
*/
static void mcp23s08(dmx_device_info_t * dmx_device_info) {
int i = 0;
unsigned char data = 0;
int dmx_data_index = dmx_device_info->dmx_start_address;
for (i = 0; i < 8; i++) {
if (dmx_data_index > DMX_UNIVERSE_SIZE)
break;
if (dmx_data[dmx_data_index] & 0x80) { // 0-127 is off, 128-255 is on
data = data | (1 << i);
}
dmx_data_index++;
}
mcp23s08_reg_write(&dmx_device_info->device_info, MCP23S08_GPIO, data);
}
void RDMSubDeviceMCP23S08::Stop(void) {
mcp23s08_reg_write(&m_tDeviceInfo, MCP23S08_GPIO, 0x00);
m_nData = 0;
}