added openbeacon helper files

firmware/funk/Makefile

@@ -7,6 +7,7 @@ OBJS =
 OBJS += nrf24l01p.o
 OBJS += rftransfer.o
 OBJS += filetransfer.o
+OBJS += openbeacon.h
 
 LIBNAME=funk
 

firmware/funk/openbeacon.c

@@ -0,0 +1,46 @@
+#include "openbeacon.h"
+#include "nrf24l01p.h"
+#include "basic/byteorder.h"
+
+const uint32_t key = {0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF};
+const uint8_t enctoggle = 0;
+uint32_t mid = 0;
+uint32_t mctr = 0;
+uint8_t strength = 0;
+
+void openbeaconSetup(uint32_t id, uint32_t ctr)
+{
+    mid = id;
+    mctr = ctr;
+    strength = 0;
+}
+
+void openbeaconSendPacket(uint32_t id, uint32_t ctr, uint8_t flags, uint8_t strength)
+{
+    uint8_t buf[32];
+    int status;
+
+    buf[0]=0x10; // Length: 16 bytes
+    buf[1]=0x17; // Proto - fixed at 0x17?
+    buf[2]=flags;
+    buf[3]=strength*85; // Send intensity
+
+    uint322uint8p(ctr, buf+4);
+    uint322uint8p(id, buf+8);
+
+    buf[12]=0xff; // salt (0xffff always?)
+    buf[13]=0xff;
+
+    status=nrf_snd_pkt_crc_encr(16,buf,enctoggle?testkey:NULL);
+}
+
+void openbeaconSend(void)
+{
+    //uint8_t tmp = nrfgetstrength();
+    //nrfsetstrength(strength);
+    openbeaconSendPacket(mid, ctr++, 0xFF, strength++);
+    if( strength == 4 )
+        strength = 0;
+    //maybe this produces timing problems?
+    //nrfsetstrength(tmp);
+}

firmware/funk/openbeacon.h

@@ -0,0 +1,10 @@
+#ifndef _OPENBEACON_H_
+#define _OPENBEACON_H_
+#include <stdint.h>
+
+void openbeaconSetup(uint32_t id, uint32_t ctr);
+void openbeaconSendPacket(uint32_t id, uint32_t ctr,
+                            uint8_t flags, uint8_t strength);
+void openbeaconSend(void);
+
+#endif