mirror of
https://github.com/thelsing/knx.git
synced 2024-10-20 20:07:45 +02:00
184 lines
4.1 KiB
C++
184 lines
4.1 KiB
C++
#include "tpuart_data_link_layer.h"
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#include "bits.h"
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#include "platform.h"
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#include "device_object.h"
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#include "address_table_object.h"
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#include "cemi_frame.h"
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#include <stdio.h>
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#include <string.h>
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#define SerialKNX Serial1
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// NCN5120
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// services Host -> Controller :
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// internal commands, device specific
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#define U_RESET_REQ 0x01
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#define U_STATE_REQ 0x02
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#define U_SET_BUSY_REQ 0x03
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#define U_QUIT_BUSY_REQ 0x04
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#define U_BUSMON_REQ 0x05
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#define U_SET_ADDRESS_REQ 0xF1
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#define U_SET_REPETITION_REQ 0xF2
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#define U_L_DATA_OFFSET_REQ 0x08 //-0x0C
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#define U_SYSTEM_STATE 0x0D
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#define U_STOP_MODE_REQ 0x0E
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#define U_EXIT_STOP_MODE_REQ 0x0F
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#define U_ACK_REQ 0x10 //-0x17
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#define U_CONFIGURE_REQ 0x18
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#define U_INT_REG_WR_REQ 0x28
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#define U_INT_REG_RD_REQ 0x38
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#define U_POLLING_STATE_REQ 0xE0
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//knx transmit data commands
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#define U_L_DATA_START_REQ 0x80
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#define U_L_DATA_CONT_REQ 0x81 //-0xBF
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#define U_L_DATA_END_REQ 0x47 //-0x7F
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//serices to host controller
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// DLL services (device is transparent)
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#define L_DATA_STANDARD_IND 0x81
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#define L_DATA_EXTENDED_IND 0x10
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#define L_DATA_MASK 0xD3
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#define L_POLL_DATA_IND 0xF0
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// acknowledge services (device is transparent in bus monitor mode)
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#define L_ACKN_IND 0x00
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#define L_ACKN_MASK 0x33
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#define L_DATA_CON 0x0B
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#define L_DATA_CON_MASK 0x7F
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// control services, device specific
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#define U_RESET_IND 0x03
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#define U_STATE_IND 0x07
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#define SLAVE_COLLISION 0x80
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#define RECEIVE_ERROR 0x40
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#define TRANSMIT_ERROR 0x20
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#define PROTOCOL_ERROR 0x10
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#define TEMPERATURE_WARNING 0x08
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#define U_FRAME_STATE_IND 0x13
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#define U_FRAME_STATE_MASK 0x17
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#define PARITY_BIT_ERROR 0x80
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#define CHECKSUM_LENGTH_ERROR 0x40
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#define TIMING_ERROR 0x20
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#define U_CONFIGURE_IND 0x01
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#define U_CONFIGURE_MASK 0x83
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#define AUTO_ACKNOWLEDGE 0x20
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#define AUTO_POLLING 0x10
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#define CRC_CCITT 0x80
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#define FRAME_END_WITH_MARKER 0x40
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#define U_FRAME_END_IND 0xCB
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#define U_STOP_MODE_IND 0x2B
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#define U_SYSTEM_STAT_IND 0x4B
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void resetChip()
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{
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uint8_t cmd = U_RESET_REQ;
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SerialKNX.write(cmd);
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while (true)
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{
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uint8_t resp = SerialKNX.read();
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if (resp == U_RESET_IND)
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break;
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}
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}
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void stopChip()
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{
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uint8_t cmd = U_STOP_MODE_REQ;
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SerialKNX.write(cmd);
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while (true)
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{
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uint8_t resp = SerialKNX.read();
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if (resp == U_STOP_MODE_IND)
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break;
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}
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}
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void setAddress(uint16_t addr)
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{
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if (addr == 0)
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return;
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uint8_t cmd[4];
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cmd[1] = (uint8_t)(addr >> 8);
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cmd[2] = (uint8_t)(addr & 0xff);
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//cmd[3] is don't care
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SerialKNX.write(cmd, 4);
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while (true)
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{
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uint8_t resp = SerialKNX.read();
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resp &= U_CONFIGURE_MASK;
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if (resp == U_CONFIGURE_IND)
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break;
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}
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}
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TpUartDataLinkLayer::TpUartDataLinkLayer(DeviceObject& devObj, AddressTableObject& addrTab,
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NetworkLayer& layer, Platform& platform) : DataLinkLayer(devObj, addrTab, layer, platform)
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{
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}
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bool TpUartDataLinkLayer::sendFrame(CemiFrame& frame)
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{
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uint16_t length = frame.telegramLengthtTP();
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uint8_t* buffer = new uint8_t[length];
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frame.fillTelegramTP(buffer);
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bool success = sendBytes(buffer, length);
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delete[] buffer;
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return success;
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}
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void TpUartDataLinkLayer::loop()
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{
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if (!_enabled)
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return;
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uint8_t buffer[512];
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int len = 0;
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// TODO: implement receiving of frames
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CemiFrame frame(buffer, len);
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frameRecieved(frame);
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}
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void TpUartDataLinkLayer::enabled(bool value)
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{
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if (value && !_enabled)
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{
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SerialKNX.begin(19200, SERIAL_8E1);
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resetChip();
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setAddress(_deviceObject.induvidualAddress());
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_enabled = true;
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return;
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}
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if(!value && _enabled)
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{
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stopChip();
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_enabled = false;
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return;
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}
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}
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bool TpUartDataLinkLayer::enabled() const
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{
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return _enabled;
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}
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bool TpUartDataLinkLayer::sendBytes(uint8_t* bytes, uint16_t length)
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{
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if (!_enabled)
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return false;
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//TODO: implement
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return false;
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} |