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  1. #include <inttypes.h>
  2. #include <avr/interrupt.h>
  3. #include <stdio.h>
  4. #include <string.h>
  5. #include <config.h> // All configuration parameters
  6. #include <bios.h>   // BIOS interface declarations, including CAN structure and ID defines.
  7.  
  8. #include <drivers/timer/timebase.h>
  9. #include <drivers/ir/transceiver/irtransceiver.h>
  10. #include <drivers/ir/protocols.h>
  11.  
  12. #define APP_TYPE    CAN_APPTYPES_IRRECEIVER
  13. #define APP_VERSION 0x0004
  14.  
  15. #define STATE_IDLE          0
  16. #define STATE_IR_REPEAT     1
  17. #define STATE_START_RECEIVE 2
  18. #define STATE_RECEIVING     3
  19. #define STATE_START_PAUSE   4
  20. #define STATE_PAUSING       5
  21. #define STATE_START_IDLE    6
  22.  
  23. #define IR_ID_DATA  0
  24. #define IR_ID_RAW   1
  25. #define IR_ID_DEBUG 10
  26.  
  27. // A simple message "queue", with space for one message only.
  28. // These are declared volatile to tell the compiler not to optimize away accesses.
  29. volatile Can_Message_t rxMsg; // Message storage
  30. volatile uint8_t rxMsgFull;   // Synchronization flag
  31.  
  32. // CAN message reception callback.
  33. // This function runs with interrupts disabled, keep it as short as possible.
  34. void can_receive(Can_Message_t *msg) {
  35.     if (!rxMsgFull) {
  36.         memcpy((void*)&rxMsg, msg, sizeof(rxMsg));
  37.         rxMsgFull = 1;
  38.     }
  39. }
  40.  
  41. #if (SEND_DEBUG)
  42. void send_debug(uint16_t *buffer, uint8_t len) {
  43.     Can_Message_t txMsg;
  44.    
  45.     /* the protocol is unknown so the raw ir-data is sent, makes it easier to develop a new protocol */
  46.     txMsg.DataLength = 8;
  47.     txMsg.Id = ((CAN_SNS << CAN_SHIFT_CLASS) | (SNS_TYPE_IR << CAN_SHIFT_SNS_TYPE) | (IR_ID_RAW<<CAN_SHIFT_SNS_ID) | (NODE_ID << CAN_SHIFT_SNS_SID));
  48.     for (uint8_t i = 0; i < len>>2; i++) {
  49.         uint8_t index = i<<2;
  50.         txMsg.Data.bytes[0] = (buffer[index]>>8)&0xff;
  51.         txMsg.Data.bytes[1] = (buffer[index]>>0)&0xff;
  52.         txMsg.Data.bytes[2] = (buffer[index+1]>>8)&0xff;
  53.         txMsg.Data.bytes[3] = (buffer[index+1]>>0)&0xff;
  54.         txMsg.Data.bytes[4] = (buffer[index+2]>>8)&0xff;
  55.         txMsg.Data.bytes[5] = (buffer[index+2]>>0)&0xff;
  56.         txMsg.Data.bytes[6] = (buffer[index+3]>>8)&0xff;
  57.         txMsg.Data.bytes[7] = (buffer[index+3]>>0)&0xff;
  58.        
  59.         /* buffers will be filled when sending more than 2-3 messages, so retry until sent */
  60.         while (BIOS_CanSend(&txMsg) != CAN_OK) {}
  61.     }
  62.    
  63.     uint8_t lastpacketcnt = len&0x03;
  64.     if (lastpacketcnt > 0) {
  65.         txMsg.DataLength = lastpacketcnt<<1;
  66.         for (uint8_t i = 0; i < lastpacketcnt; i++) {
  67.             txMsg.Data.bytes[i<<1] = (buffer[(len&0xfc)|i]>>8)&0xff;
  68.             txMsg.Data.bytes[(i<<1)+1] = (buffer[(len&0xfc)|i]>>0)&0xff;
  69.         }
  70.         /* buffers will be filled when sending more than 2-3 messages, so retry until sent */
  71.         while (BIOS_CanSend(&txMsg) != CAN_OK) {}
  72.         //BIOS_CanSend(&txMsg);
  73.     }
  74.  
  75. }
  76. #endif
  77.  
  78. int main(void)
  79. {
  80.     // Enable interrupts as early as possible
  81.     sei();
  82.    
  83.     Timebase_Init();
  84.     IrTransceiver_Init();
  85.    
  86.     Can_Message_t txMsg;
  87.     txMsg.Id = (CAN_NMT_APP_START << CAN_SHIFT_NMT_TYPE) | (NODE_ID << CAN_SHIFT_NMT_SID);
  88.     txMsg.DataLength = 4;
  89.     txMsg.RemoteFlag = 0;
  90.     txMsg.ExtendedFlag = 1;
  91.     txMsg.Data.words[0] = APP_TYPE;
  92.     txMsg.Data.words[1] = APP_VERSION;
  93.    
  94.     // Set up callback for CAN reception, this is optional if only sending is required.
  95.     BIOS_CanCallback = &can_receive;
  96.     // Send CAN_NMT_APP_START
  97.     BIOS_CanSend(&txMsg);
  98.    
  99.     uint32_t time = Timebase_CurrentTime();
  100.     uint32_t timePauseStarted = 0;
  101.    
  102.     uint8_t state = STATE_IDLE;
  103.    
  104.     Ir_Protocol_Data_t proto;
  105.     proto.timeout=0; proto.data=0; proto.repeats=0; proto.protocol=0;
  106.     uint8_t len=0;
  107.     uint16_t rxbuffer[MAX_NR_TIMES];
  108.    
  109.     while (1) {
  110.         if (state == STATE_IDLE) {
  111.             IrTransceiver_Receive_Start(rxbuffer);
  112.             state = STATE_START_RECEIVE;
  113.         } else if (state == STATE_START_RECEIVE) {
  114.             state = STATE_RECEIVING;
  115.         } else if (state == STATE_RECEIVING) {
  116.             uint8_t res = IrTransceiver_Receive_Poll(&len);
  117.             if ((res == IR_OK) && (len > 0)) {
  118.                 //låt protocols parsa och skicka på can
  119.                 uint8_t res2 = parseProtocol(rxbuffer, len, &proto);
  120.                 if (res2 == IR_OK && proto.protocol != IR_PROTO_UNKNOWN) {
  121.                     txMsg.Data.bytes[0] = IR_BUTTON_DOWN;
  122.                     txMsg.Data.bytes[1] = proto.protocol;
  123.                     txMsg.Data.bytes[2] = (proto.data>>24)&0xff;
  124.                     txMsg.Data.bytes[3] = (proto.data>>16)&0xff;
  125.                     txMsg.Data.bytes[4] = (proto.data>>8)&0xff;
  126.                     txMsg.Data.bytes[5] = proto.data&0xff;
  127.                     txMsg.Id = ((CAN_SNS << CAN_SHIFT_CLASS) | (SNS_TYPE_IR << CAN_SHIFT_SNS_TYPE) | (IR_ID_DATA<<CAN_SHIFT_SNS_ID) | (NODE_ID << CAN_SHIFT_SNS_SID));
  128.                     txMsg.DataLength = 6;
  129.                     BIOS_CanSend(&txMsg);
  130.                 } else if (proto.protocol == IR_PROTO_UNKNOWN) {
  131. #if (SEND_DEBUG)
  132.                         send_debug(rxbuffer, len);
  133.                         proto.timeout=300;
  134. #endif
  135.                    
  136.                 }
  137.                
  138.                 state = STATE_START_PAUSE;
  139.             }
  140.         } else if (state == STATE_START_PAUSE) {
  141.             IrTransceiver_Receive_Start(rxbuffer);
  142.             timePauseStarted = Timebase_CurrentTime();
  143.             state = STATE_PAUSING;
  144.         } else if (state == STATE_PAUSING) {
  145.             //resetta timebase-var om ir finns
  146.             uint8_t res = IrTransceiver_Receive_Poll(&len);
  147.             if (res == IR_NOT_FINISHED || res == IR_OK) {
  148.                 timePauseStarted = Timebase_CurrentTime();
  149.             }
  150.             if (res == IR_OK) {
  151.                 /* start a new reception */
  152.                 IrTransceiver_Receive_Start(rxbuffer);
  153.             }
  154.            
  155.             time = Timebase_CurrentTime();
  156.             if (time - timePauseStarted >= proto.timeout) {
  157.                 state = STATE_START_IDLE;
  158.             }
  159.         } else if (state == STATE_START_IDLE) {
  160.             if (proto.protocol != IR_PROTO_UNKNOWN) {
  161.                 //skicka på can
  162.                 txMsg.Data.bytes[0] = IR_BUTTON_UP;
  163.                 BIOS_CanSend(&txMsg);
  164.             }
  165.             state = STATE_IDLE;
  166.         }
  167.        
  168.        
  169.        
  170.         if (rxMsgFull) {
  171.             /* No message reception functionality implemented */
  172.             /* Flush the received message */
  173.             rxMsgFull = 0; //  
  174.         }
  175.     }
  176.     return 0;
  177. }
  178.