Reflex jamming is now absurdly accurate and reliable.

[goodfet] / firmware / apps / radios / ccspi.c

diff --git a/firmware/apps/radios/ccspi.c b/firmware/apps/radios/ccspi.c
index d08da28..6c84171 100644 (file)
--- a/firmware/apps/radios/ccspi.c
+++ b/firmware/apps/radios/ccspi.c
@@ -87,6 +87,73 @@ u8 ccspitrans8(u8 byte){
 }
 
 
+//! Reflexively jam on the present channel.
+void ccspireflexjam(u16 delay){
+  unsigned long i;
+  #if defined(FIFOP) && defined(SFD) && defined(FIFO) && defined(PLED2DIR) && defined(PLED2PIN) && defined(PLED2OUT)
+  
+  prep_timer();
+  debugstr("Reflex jamming until reset.");
+  debughex(delay);
+  txdata(CCSPI,CCSPI_REFLEX,1);  //Let the client continue its business.
+  while(1) {
+    //Wait until a packet is received
+    while(!SFD){
+      //Has there been an overflow in the RX buffer?
+      if((!FIFO)&&FIFOP){
+       //debugstr("Clearing RX overflow");
+       CLRSS;
+       ccspitrans8(0x08); //SFLUSHRX
+       SETSS;
+      }
+    }
+    //Turn on LED 2 (green) as signal
+    PLED2DIR |= PLED2PIN;
+    PLED2OUT &= ~PLED2PIN;
+    
+    
+    
+    //Wait a few us to send it.
+    delay_us(delay);
+
+    //Transmit the packet.
+    CLRSS;
+    ccspitrans8(0x04);
+    SETSS;
+    
+    
+    //Load the next jamming packet.
+    //Note: attempts to preload this actually slowed the jam time down from 7 to 9 bytes.
+    CLRSS;
+    ccspitrans8(CCSPI_TXFIFO);
+    char pkt[5] = {0x05, 0, 0, 0, 0};
+    //char pkt[15] = {0x0f, 0x01, 0x08, 0x82, 0xff, 0xff, 0xff, 0xff, 0xde, 0xad, 0xbe, 0xef, 0xba, 0xbe, 0xc0};
+    //char pkt[12] = {0x0c, 0x01, 0x08, 0x82, 0xff, 0xff, 0xff, 0xff, 0xde, 0xad, 0xbe, 0xef};
+    for(i=0;i<pkt[0];i++)
+      ccspitrans8(pkt[i]);
+    SETSS;
+    
+    //* I think this might be unnecessary.
+    //msdelay(100+delay);      //Instead of waiting for pulse on SFD
+    //delay_ms(1);
+    //Flush TX buffer.
+    CLRSS;
+    ccspitrans8(0x09); //SFLUSHTX
+    SETSS;
+    
+    
+    //Turn off LED 2 (green) as signal
+    PLED2DIR |= PLED2PIN;
+    PLED2OUT |= PLED2PIN;
+  }
+#else
+  debugstr("Can't reflexively jam without SFD, FIFO, FIFOP, and P2LEDx definitions - try using telosb platform.");
+  txdata(app,NOK,0);
+#endif
+}
+
+
+
 //! Writes a register
 u8 ccspi_regwrite(u8 reg, const u8 *buf, int len){
   CLRSS;
@@ -190,50 +257,8 @@ void ccspi_handle_fn( uint8_t const app,
     break;
 
   case CCSPI_REFLEX:
-#if defined(FIFOP) && defined(SFD) && defined(FIFO) && defined(PLED2DIR) && defined(PLED2PIN) && defined(PLED2OUT)
-    txdata(app,verb,1);  //Just sending some response back to client
-    while(1) {
-        //Wait until a packet is received
-        while(!SFD);
-        //Turn on LED 2 (green) as signal
-           PLED2DIR |= PLED2PIN;
-           PLED2OUT &= ~PLED2PIN;
-
-        //Put radio in TX mode
-        CLRSS;
-        ccspitrans8(0x04);
-        SETSS;
-
-        //Load the jamming packet.
-        //Note: attempts to preload this actually slowed the jam time down from 7 to 9 bytes.
-        CLRSS;
-        ccspitrans8(CCSPI_TXFIFO);
-        char pkt[15] = {0x0f, 0x01, 0x08, 0x82, 0xff, 0xff, 0xff, 0xff, 0xde, 0xad, 0xbe, 0xef, 0xba, 0xbe, 0xc0};
-        //char pkt[12] = {0x0c, 0x01, 0x08, 0x82, 0xff, 0xff, 0xff, 0xff, 0xde, 0xad, 0xbe, 0xef};
-        for(i=0;i<pkt[0];i++)
-          ccspitrans8(pkt[i]);
-        SETSS;
-
-        //Transmit the packet.
-        CLRSS;
-        ccspitrans8(0x04); //STXON
-        SETSS;
-        msdelay(100);      //Instead of waiting for pulse on SFD
-        //Flush TX buffer.
-        CLRSS;
-        ccspitrans8(0x09); //SFLUSHTX
-        SETSS;
-
-        //Turn off LED 2 (green) as signal
-           PLED2DIR |= PLED2PIN;
-           PLED2OUT |= PLED2PIN;
-    }
-    //TODO the firmware stops staying in this mode after a while, and stops jamming... need to find a fix.
+    ccspireflexjam(len?cmddataword[0]:0);
     break;
-#else
-    debugstr("Can't reflexively jam without SFD, FIFO, FIFOP, and P2LEDx definitions - try using telosb platform.");
-    txdata(app,NOK,0);
-#endif
 
   case CCSPI_REFLEX_AUTOACK:
 #if defined(FIFOP) && defined(SFD) && defined(FIFO) && defined(PLED2DIR) && defined(PLED2PIN) && defined(PLED2OUT)