interface MacSend;
interface MacReceive;
interface Packet;
- interface LocalTime<T32khz> as LocalTime32khz;
interface Sleeptime;
interface Teamgeist;
interface ChannelCongestion;
interface Alarm<T32khz, uint16_t> as Timer;
interface Alarm<T32khz, uint16_t> as SampleTimer;
- interface Counter<T32khz,uint16_t> as Counter32khz16;
+ interface LocalTime<T32khz> as LocalTime32kHz;
+
+ interface Duplicate;
+
async command am_addr_t amAddress();
/*
interface GeneralIO as Led0;
// DEFAULT_SLEEP_TIME=3250,
// DEFAULT_SLEEP_TIME=6500,
// DEFAULT_SLEEP_TIME=8192,
- DEFAULT_SLEEP_TIME=16384,
- // DEFAULT_SLEEP_TIME=32768U,
+ // DEFAULT_SLEEP_TIME=16384,
+ DEFAULT_SLEEP_TIME=32768U,
// DEFAULT_SLEEP_TIME=65535U,
DATA_DETECT_TIME=17,
RX_SETUP_TIME=102, // time to set up receiver
ACK_DURATION = SUB_HEADER_TIME + SUB_FOOTER_TIME,
MAX_SHORT_RETRY=9,
MAX_LONG_RETRY=3,
- MAX_AGE=0xff,
- MSG_TABLE_ENTRIES=16,
TOKEN_ACK_FLAG = 64,
TOKEN_ACK_MASK = 0x3f,
INVALID_SNR = 0xffff,
};
/**************** Module Global Variables *****************/
- typedef union
- {
- uint32_t op;
- struct {
- uint16_t lo;
- uint16_t hi;
- };
- } ui32parts_t;
-
/* flags */
typedef enum {
SWITCHING = 1,
TEAMGEIST_ACTIVE=128
} flags_t;
- /* duplicate suppression */
- typedef struct knownMessage_t {
- am_addr_t src;
- uint8_t token;
- uint8_t age;
- } knownMessage_t;
-
- knownMessage_t knownMsgTable[MSG_TABLE_ENTRIES];
uint8_t flags = 0;
uint8_t checkCounter = 0;
uint8_t shortRetryCounter = 0;
uint16_t localSleeptime = DEFAULT_SLEEP_TIME;
uint16_t rssiValue = 0;
uint32_t restLaufzeit = 0;
-
- uint16_t counter2sec = 127;
+
uint32_t rxTime = 0;
am_id_t teamgeistType = 0;
uint16_t MIN_BACKOFF_MASK;
-#ifdef REDMAC_DEBUG
- uint8_t dupOldest;
- task void dumpLast() {
- knownMessage_t mem;
- unsigned i;
- atomic {
- i = dupOldest;
- mem = knownMsgTable[i];
- }
- sdDebug(5000);
- sdDebug(i);
- sdDebug(mem.src);
- sdDebug(mem.token);
- sdDebug(mem.age);
- }
-#endif
-
/****** Secure switching of radio modes ***/
void interruptBackoffTimer();
}
}
- /**************** Helper functions ************************/
- task void ageMsgsTask() {
- unsigned i;
- atomic {
- for(i = 0; i < MSG_TABLE_ENTRIES; i++) {
- if(knownMsgTable[i].age < MAX_AGE) ++knownMsgTable[i].age;
- }
- }
- }
-
+ /**************** Helper functions ************************/
void computeBackoff();
void checkSend() {
sT = networkSleeptime;
}
if(msg == NULL) return;
- macHdr = (red_mac_header_t *)call SubPacket.getPayload(msg, NULL);
+ macHdr = (red_mac_header_t *)call SubPacket.getPayload(msg, sizeof(red_mac_header_t) + length);
macHdr->repetitionCounter = sT/(length * BYTE_TIME + SUB_HEADER_TIME + SUB_FOOTER_TIME +
TX_GAP_TIME) + 1;
atomic {
}
}
+ void storeStrength(message_t *m) {
+ if(rssiValue != INVALID_SNR) {
+ (getMetadata(txBufPtr))->strength = rssiValue;
+ }
+ else {
+ if(call RssiAdcResource.isOwner()) {
+ (getMetadata(txBufPtr))->strength = call ChannelMonitorData.readSnr();
+ }
+ else {
+ (getMetadata(txBufPtr))->strength = 1;
+ }
+ }
+ }
+
bool prepareRepetition() {
bool repeat;
atomic {
}
return repeat;
}
-
+
void signalSendDone(error_t error) {
message_t *m;
error_t e = error;
#endif
longRetryCounter = 0;
shortRetryCounter = 0;
- if(rssiValue != INVALID_SNR) {
- (getMetadata(m))->strength = rssiValue;
- }
- else {
- (getMetadata(m))->strength = call ChannelMonitorData.readSnr();
- }
+ storeStrength(m);
if(isFlagSet(&flags, CANCEL_SEND)) {
e = ECANCEL;
}
}
bool isNewMsg(message_t* msg) {
- bool rVal = TRUE;
- uint8_t i;
- for(i=0; i < MSG_TABLE_ENTRIES; i++) {
- if((knownMsgTable[i].age < MAX_AGE) &&
- (getHeader(msg)->src == knownMsgTable[i].src) &&
- (((getHeader(msg)->token) & TOKEN_ACK_MASK) == knownMsgTable[i].token)) {
- knownMsgTable[i].age = 0;
- rVal = FALSE;
- break;
- }
- }
- return rVal;
- }
-
- unsigned findOldest() {
- unsigned i;
- unsigned oldIndex = 0;
- unsigned age = knownMsgTable[oldIndex].age;
- for(i = 1; i < MSG_TABLE_ENTRIES; i++) {
- if(age < knownMsgTable[i].age) {
- oldIndex = i;
- age = knownMsgTable[i].age;
- }
- }
- return oldIndex;
- }
+ return call Duplicate.isNew(getHeader(msg)->src, (getHeader(msg)->token) & TOKEN_ACK_MASK);
+ }
void rememberMsg(message_t* msg) {
- unsigned oldest = findOldest();
- knownMsgTable[oldest].src = getHeader(msg)->src;
- knownMsgTable[oldest].token = (getHeader(msg)->token) & TOKEN_ACK_MASK;
- knownMsgTable[oldest].age = 0;
-#ifdef REDMAC_DEBUG
- dupOldest = oldest;
- post dumpLast();
-#endif
+ call Duplicate.remember(getHeader(msg)->src, (getHeader(msg)->token) & TOKEN_ACK_MASK);
}
void prepareAck(message_t* msg) {
getHeader(&ackMsg)->dest = getHeader(msg)->src;
getHeader(&ackMsg)->type = getHeader(msg)->type;
#ifdef REDMAC_DEBUG
- repCounter = ((red_mac_header_t *)call SubPacket.getPayload(msg, NULL))->repetitionCounter;
+ repCounter = ((red_mac_header_t *)
+ call SubPacket.getPayload(msg, sizeof(red_mac_header_t)))->repetitionCounter;
#endif
}
uint32_t calcGeneratedTime(red_mac_header_t *m) {
return rxTime - m->time - TIME_CORRECTION;
}
-
/**************** Init ************************/
command error_t Init.init(){
- uint8_t i;
atomic {
macState = INIT;
seqNo = call Random.rand16() % TOKEN_ACK_FLAG;
- for(i = 0; i < MSG_TABLE_ENTRIES; i++) {
- knownMsgTable[i].age = MAX_AGE;
- }
for(MIN_BACKOFF_MASK = 1; MIN_BACKOFF_MASK < networkSleeptime; ) {
MIN_BACKOFF_MASK = (MIN_BACKOFF_MASK << 1) + 1;
}
return call SubPacket.maxPayloadLength() - sizeof(red_mac_header_t);
}
- command void* Packet.getPayload(message_t* msg, uint8_t* len) {
- nx_uint8_t *payload = (nx_uint8_t *)call SubPacket.getPayload(msg, len);
- if (len != NULL) {
- *len -= sizeof(red_mac_header_t);
- }
+ command void* Packet.getPayload(message_t* msg, uint8_t len) {
+ nx_uint8_t *payload = (nx_uint8_t *)call SubPacket.getPayload(msg, len + sizeof(red_mac_header_t));
return (void*)(payload + sizeof(red_mac_header_t));
}
if(seqNo >= TOKEN_ACK_FLAG) seqNo = 1;
#ifdef REDMAC_PERFORMANCE
txStat.payloadLength = txLen;
- txStat.interfaceTime = call LocalTime32khz.get();
+ txStat.interfaceTime = call LocalTime32kHz.get();
#endif
}
else {
if(macState == RX_P) {
// sdDebug(191);
if(error == SUCCESS) {
- post ageMsgsTask();
// sdDebug(192);
isCnt = isControl(msg);
if(msgIsForMe(msg)) {
rxStat.duplicate = PERF_NEW_MSG;
#endif
// sdDebug(194);
- if(rssiValue != INVALID_SNR) {
- (getMetadata(m))->strength = rssiValue;
- }
- else {
- if(call RssiAdcResource.isOwner()) {
- (getMetadata(m))->strength = call ChannelMonitorData.readSnr();
- }
- else {
- (getMetadata(m))->strength = 1;
- }
- }
+ storeStrength(msg);
getMetadata(msg)->time = calcGeneratedTime((red_mac_header_t*) payload);
getMetadata(msg)->ack = WAS_NOT_ACKED;
m = signal MacReceive.receiveDone(msg);
if(error == SUCCESS) {
if(ackIsForMe(msg)) {
// sdDebug(202);
- if(rssiValue != INVALID_SNR) {
- (getMetadata(txBufPtr))->strength = rssiValue;
- }
- else {
- if(call RssiAdcResource.isOwner()) {
- (getMetadata(txBufPtr))->strength = call ChannelMonitorData.readSnr();
- }
- else {
- (getMetadata(txBufPtr))->strength = 1;
- }
- }
getMetadata(txBufPtr)->ack = WAS_ACKED;
getMetadata(txBufPtr)->repetitions = txMacHdr->repetitionCounter;
if(isFlagSet(&flags, TEAMGEIST_ACTIVE) &&
async event void RadioTimeStamping.receivedSFD( uint16_t time ) {
if(call RssiAdcResource.isOwner()) call ChannelMonitorData.getSnr();
if(macState == RX_P) {
- rxTime = call LocalTime32khz.get();
+ rxTime = call LocalTime32kHz.get();
call ChannelMonitor.rxSuccess();
}
}
uint32_t now;
uint32_t mTime;
if((macState == TX) && (p_msg == txBufPtr)) {
- now = call LocalTime32khz.get();
+ now = call LocalTime32kHz.get();
mTime = getMetadata(p_msg)->time;
if(now >= mTime) {
txMacHdr->time = now - mTime;
}
}
- async command uint32_t LocalTime32khz.get() {
- ui32parts_t time;
- atomic {
- time.lo = call Counter32khz16.get();
- time.hi = counter2sec;
- if(call Counter32khz16.isOverflowPending()) ++time.hi;
- }
- return time.op;
- }
-
- async event void Counter32khz16.overflow() {
- ++counter2sec;
- }
-
-
/****** Timer ******************************/
void checkOnBusy() {
setTxMode();
#ifdef REDMAC_PERFORMANCE
call Performance.macIdleOnCca();
- txStat.txModeTime = call LocalTime32khz.get();
+ txStat.txModeTime = call LocalTime32kHz.get();
#endif
}
}
setRxMode();
call Timer.stop();
}
- post ageMsgsTask();
}
/***** Sleeptime **********************************/
projects / tinyos-2.x.git / blobdiff