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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. int main(void)
  42. {
  43.     // Enable interrupts as early as possible
  44.     sei();
  45.    
  46.     Timebase_Init();
  47.     IrTransceiver_Init();
  48.    
  49.     Can_Message_t txMsg;
  50.     txMsg.Id = (CAN_NMT_APP_START << CAN_SHIFT_NMT_TYPE) | (NODE_ID << CAN_SHIFT_NMT_SID);
  51.     txMsg.DataLength = 4;
  52.     txMsg.RemoteFlag = 0;
  53.     txMsg.ExtendedFlag = 1;
  54.     txMsg.Data.words[0] = APP_TYPE;
  55.     txMsg.Data.words[1] = APP_VERSION;
  56.    
  57.     // Set up callback for CAN reception, this is optional if only sending is required.
  58.     BIOS_CanCallback = &can_receive;
  59.     // Send CAN_NMT_APP_START
  60.     BIOS_CanSend(&txMsg);
  61.    
  62.     uint32_t time = Timebase_CurrentTime();
  63.     uint32_t timePauseStarted = 0;
  64.    
  65.     uint8_t state = STATE_IDLE;
  66.    
  67.     Ir_Protocol_Data_t proto;
  68.     proto.timeout=0; proto.data=0; proto.repeats=0; proto.protocol=0;
  69.     uint8_t len=0;
  70.     uint16_t rxbuffer[MAX_NR_TIMES];
  71.    
  72.     while (1) {
  73.         if (state == STATE_IDLE) {
  74.             IrTransceiver_Receive_Start(rxbuffer);
  75.             state = STATE_START_RECEIVE;
  76.         } else if (state == STATE_START_RECEIVE) {
  77.             state = STATE_RECEIVING;
  78.         } else if (state == STATE_RECEIVING) {
  79.             uint8_t res = IrTransceiver_Receive_Poll(&len);
  80.             if ((res == IR_OK) && (len > 0)) {
  81.                 //låt protocols parsa och skicka på can
  82.                 if (parseProtocol(rxbuffer, len, &proto) == IR_OK) {
  83.                     if (proto.protocol != IR_PROTO_UNKNOWN) {
  84.                         txMsg.Data.bytes[0] = IR_BUTTON_DOWN;
  85.                         txMsg.Data.bytes[1] = proto.protocol;
  86.                         txMsg.Data.bytes[2] = (proto.data>>24)&0xff;
  87.                         txMsg.Data.bytes[3] = (proto.data>>16)&0xff;
  88.                         txMsg.Data.bytes[4] = (proto.data>>8)&0xff;
  89.                         txMsg.Data.bytes[5] = proto.data&0xff;
  90.                         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));
  91.                         txMsg.DataLength = 6;
  92.                         BIOS_CanSend(&txMsg);
  93.                     }
  94.                 }
  95.                
  96.                 state = STATE_START_PAUSE;
  97.             }
  98.         } else if (state == STATE_START_PAUSE) {
  99.             IrTransceiver_Receive_Start(rxbuffer);
  100.             timePauseStarted = Timebase_CurrentTime();
  101.             state = STATE_PAUSING;
  102.         } else if (state == STATE_PAUSING) {
  103.             //resetta timebase-var om ir finns, detta bör göras snyggare
  104.             /*for (uint8_t i=0; i<10; i++) {
  105.                 if (IrTransceiver_Receive_Pause_Poll() == 0) {
  106.                     break;
  107.                 }
  108.                 if (i==9) {
  109.                     timePauseStarted = Timebase_CurrentTime();
  110.                 }
  111.             }*/
  112.             uint8_t res = IrTransceiver_Receive_Poll(&len);
  113.             if (res == IR_NOT_FINISHED || res == IR_OK) {
  114.                 timePauseStarted = Timebase_CurrentTime();
  115.             }
  116.             if (res == IR_OK) {
  117.                 IrTransceiver_Receive_Start(rxbuffer);
  118.             }
  119.            
  120.             time = Timebase_CurrentTime();
  121.             if (time - timePauseStarted >= proto.timeout) {
  122.                 state = STATE_START_IDLE;
  123.             }
  124.         } else if (state == STATE_START_IDLE) {
  125.             if (proto.protocol != IR_PROTO_UNKNOWN) {
  126.                 //skicka på can
  127.                 txMsg.Data.bytes[0] = IR_BUTTON_UP;
  128.                 BIOS_CanSend(&txMsg);
  129.             }
  130.             state = STATE_IDLE;
  131.         }
  132.        
  133.        
  134.        
  135.         if (rxMsgFull) {
  136.             /* No message reception functionality implemented */
  137.             /* Flush the received message */
  138.             rxMsgFull = 0; //  
  139.         }
  140.     }
  141.     return 0;
  142. }
  143.