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openbeacon: increment seq counter on boot

This commit is contained in:
schneider 2011-07-19 00:19:50 +02:00
parent f4dee3550c
commit 643e8365aa
2 changed files with 26 additions and 11 deletions
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30
firmware/funk/openbeacon.c
View File

@ -10,11 +10,22 @@ const uint32_t key[4] = { 0xB4595344,0xD3E119B6,0xA814D0EC,0xEFF5A24E };
const uint8_t useencryption = 1;
const uint8_t mac[5] = {1,2,3,2,1};
uint32_t oid = 0;
uint32_t seq = 0;
uint8_t strength = 0;
volatile uint32_t oid = 0;
volatile uint32_t seq = 0;
volatile uint8_t strength = 0;
void openbeaconSave()
void openbeaconShutdown(void)
{
openbeaconSave(seq);
}
void openbeaconSaveBlock(void)
{
openbeaconSave(seq + OPENBEACON_SAVE + 1);
}
void openbeaconSave(uint32_t s)
{
FIL file;
BYTE buf[4];
@ -23,7 +34,7 @@ void openbeaconSave()
if( f_open(&file, "beacon", FA_OPEN_ALWAYS|FA_WRITE) )
return;
uint32touint8p(seq, buf);
uint32touint8p(s, buf);
if( f_write(&file, buf, 4, &readbytes) )
return;
@ -37,7 +48,7 @@ void openbeaconRead()
BYTE buf[4];
UINT readbytes;
if( f_open(&file, "beacon", FA_OPEN_EXISTING|FA_READ) )
if( f_open(&file, "beacon.cfg", FA_OPEN_EXISTING|FA_READ) )
return;
if( f_read(&file, buf, 4, &readbytes) )
@ -53,6 +64,7 @@ void openbeaconSetup(uint32_t id)
oid = id;
strength = 0;
openbeaconRead();
openbeaconSaveBlock();
}
uint8_t openbeaconSendPacket(uint32_t id, uint32_t seq,
@ -80,11 +92,11 @@ uint8_t openbeaconSend(void)
nrf_set_strength(strength);
nrf_set_tx_mac(sizeof(mac), mac);
status = openbeaconSendPacket(oid, seq++, 0xFF, strength++);
status = openbeaconSendPacket(oid, seq, 0xFF, strength++);
if( strength == 4 )
strength = 0;
if( seq % OPENBEACON_SAVECOUNTER == 0 )
openbeaconSave();
if( seq++ & OPENBEACON_SAVE == OPENBEACON_SAVE )
openbeaconSaveBlock();
return status;
}

7
firmware/funk/openbeacon.h
View File

@ -5,8 +5,11 @@
#include "funk/nrf24l01p.h"
#include "basic/byteorder.h"
#define OPENBEACON_SAVECOUNTER (1024*8)
void openbeaconSave();
#define OPENBEACON_SAVE 0xFFFF
void openbeaconShutdown(void);
void openbeaconSaveBlock(void);
void openbeaconSave(uint32_t s);
void openbeaconRead();
void openbeaconSetup(uint32_t id);
uint8_t openbeaconSendPacket(uint32_t id, uint32_t ctr,