// $Id$
-/* tab:4
+/*
* "Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
*
}
implementation {
- cc1000_header_t* getHeader(message_t* amsg) {
- return (cc1000_header_t*)(amsg->data - sizeof(cc1000_header_t));
+ cc1000_header_t* ONE getHeader(message_t* ONE amsg) {
+ return TCAST(cc1000_header_t* ONE, (uint8_t*)amsg + offsetof(message_t, data) - sizeof(cc1000_header_t));
+ }
+
+ cc1000_footer_t *getFooter(message_t *amsg) {
+ return (cc1000_footer_t *)(amsg->footer);
}
command error_t AMSend.send[am_id_t id](am_addr_t addr,
return call Packet.maxPayloadLength();
}
- command void* AMSend.getPayload[am_id_t id](message_t* m) {
- return call Packet.getPayload(m, NULL);
+ command void* AMSend.getPayload[am_id_t id](message_t* m, uint8_t len) {
+ return call Packet.getPayload(m, len);
}
/* Receiving a packet */
event message_t* SubReceive.receive(message_t* msg, void* payload, uint8_t len) {
- if (call AMPacket.isForMe(msg)) {
- return signal Receive.receive[call AMPacket.type(msg)](msg, payload, len);
+ cc1000_footer_t* msg_footer = getFooter(msg);
+ if(msg_footer->crc == 1) {
+ if (call AMPacket.isForMe(msg)) {
+ return signal Receive.receive[call AMPacket.type(msg)](msg, payload, len);
+ }
+ else {
+ return signal Snoop.receive[call AMPacket.type(msg)](msg, payload, len);
+ }
}
- else {
- return signal Snoop.receive[call AMPacket.type(msg)](msg, payload, len);
- }
- }
-
- command void* Receive.getPayload[am_id_t id](message_t* m, uint8_t* len) {
- return call Packet.getPayload(m, len);
- }
-
- command uint8_t Receive.payloadLength[am_id_t id](message_t* m) {
- return call Packet.payloadLength(m);
+ return msg;
}
- command void* Snoop.getPayload[am_id_t id](message_t* m, uint8_t* len) {
- return call Packet.getPayload(m, len);
- }
-
- command uint8_t Snoop.payloadLength[am_id_t id](message_t* m) {
- return call Packet.payloadLength(m);
- }
-
command am_addr_t AMPacket.address() {
return call amAddress();
}
header->type = type;
}
- //command am_group_t AMPacket.group(message_t* amsg) {
- // return amsg->header.group;
- //}
+ command void AMPacket.setGroup(message_t* msg, am_group_t group) {
+ cc1000_header_t* header = getHeader(msg);
+ header->group = group;
+ }
+
+ command am_group_t AMPacket.group(message_t* msg) {
+ cc1000_header_t* header = getHeader(msg);
+ return header->group;
+ }
+
+ command am_group_t AMPacket.localGroup() {
+ return TOS_AM_GROUP;
+ }
default event message_t* Receive.receive[am_id_t id](message_t* msg, void* payload, uint8_t len) {
return msg;