X-Git-Url: https://oss.titaniummirror.com/gitweb/?a=blobdiff_plain;f=tos%2Fchips%2Fcc2420%2FCC2420.h;h=eae62c35b82fb2e7add4e331a2859de8264f25e2;hb=e9bfab607e051bae6afb47b44892ce37541d1b44;hp=91665102d5bd0e5c9a0ca706dc7642b18603702c;hpb=121da1045cafe46d32ab8ecf87a98fe19430462c;p=tinyos-2.x.git

diff --git a/tos/chips/cc2420/CC2420.h b/tos/chips/cc2420/CC2420.h
index 91665102..eae62c35 100644
--- a/tos/chips/cc2420/CC2420.h
+++ b/tos/chips/cc2420/CC2420.h
@@ -38,10 +38,60 @@
 
 typedef uint8_t cc2420_status_t;
 
+#if defined(TFRAMES_ENABLED) && defined(IEEE154FRAMES_ENABLED)
+#error "Both TFRAMES and IEEE154FRAMES enabled!"
+#endif
+
+/**
+ * CC2420 header definition.
+ * 
+ * An I-frame (interoperability frame) header has an extra network 
+ * byte specified by 6LowPAN
+ * 
+ * Length = length of the header + payload of the packet, minus the size
+ *   of the length byte itself (1).  This is what allows for variable 
+ *   length packets.
+ * 
+ * FCF = Frame Control Field, defined in the 802.15.4 specs and the
+ *   CC2420 datasheet.
+ *
+ * DSN = Data Sequence Number, a number incremented for each packet sent
+ *   by a particular node.  This is used in acknowledging that packet, 
+ *   and also filtering out duplicate packets.
+ *
+ * DestPan = The destination PAN (personal area network) ID, so your 
+ *   network can sit side by side with another TinyOS network and not
+ *   interfere.
+ * 
+ * Dest = The destination address of this packet. 0xFFFF is the broadcast
+ *   address.
+ *
+ * Src = The local node ID that generated the message.
+ * 
+ * Network = The TinyOS network ID, for interoperability with other types
+ *   of 802.15.4 networks. 
+ * 
+ * Type = TinyOS AM type.  When you create a new AMSenderC(AM_MYMSG), 
+ *   the AM_MYMSG definition is the type of packet.
+ * 
+ * TOSH_DATA_LENGTH defaults to 28, it represents the maximum size of 
+ * the payload portion of the packet, and is specified in the 
+ * tos/types/message.h file.
+ *
+ * All of these fields will be filled in automatically by the radio stack 
+ * when you attempt to send a message.
+ */
 /**
- * CC2420 header.  An I-frame (interoperability frame) header has an 
- * extra network byte specified by 6LowPAN
+ * CC2420 Security Header
  */
+typedef nx_struct security_header_t {
+  nx_uint8_t secLevel:3;
+  nx_uint8_t keyMode:2;
+  nx_uint8_t reserved:3;
+  nx_uint32_t frameCounter;
+  nx_uint8_t keyID[1]; // One byte for now
+} security_header_t;
+
 typedef nx_struct cc2420_header_t {
   nxle_uint8_t length;
   nxle_uint16_t fcf;
@@ -49,15 +99,19 @@ typedef nx_struct cc2420_header_t {
   nxle_uint16_t destpan;
   nxle_uint16_t dest;
   nxle_uint16_t src;
+  /** CC2420 802.15.4 header ends here */
+#ifdef CC2420_HW_SECURITY
+  security_header_t secHdr;
+#endif
   
+#ifndef TFRAMES_ENABLED
   /** I-Frame 6LowPAN interoperability byte */
-#ifdef CC2420_IFRAME_TYPE
   nxle_uint8_t network;
 #endif
 
   nxle_uint8_t type;
 } cc2420_header_t;
-  
+
 /**
  * CC2420 Packet Footer
  */
@@ -66,15 +120,19 @@ typedef nx_struct cc2420_footer_t {
 
 /**
  * CC2420 Packet metadata. Contains extra information about the message
- * that will not be transmitted
+ * that will not be transmitted.
+ *
+ * Note that the first two bytes automatically take in the values of the
+ * FCS when the payload is full. Do not modify the first two bytes of metadata.
  */
 typedef nx_struct cc2420_metadata_t {
-  nx_uint8_t tx_power;
   nx_uint8_t rssi;
   nx_uint8_t lqi;
+  nx_uint8_t tx_power;
   nx_bool crc;
   nx_bool ack;
-  nx_uint16_t time;
+  nx_bool timesync;
+  nx_uint32_t timestamp;
   nx_uint16_t rxInterval;
 
   /** Packet Link Metadata */
@@ -82,7 +140,6 @@ typedef nx_struct cc2420_metadata_t {
   nx_uint16_t maxRetries;
   nx_uint16_t retryDelay;
 #endif
-
 } cc2420_metadata_t;
 
 
@@ -113,13 +170,12 @@ typedef nx_struct cc2420_packet_t {
 #endif
 
 /** 
- * The 6LowPAN ID has yet to be defined for a TinyOS network.
+ * The 6LowPAN NALP ID for a TinyOS network is 63 (TEP 125).
  */
 #ifndef TINYOS_6LOWPAN_NETWORK_ID
-#define TINYOS_6LOWPAN_NETWORK_ID 0x0
+#define TINYOS_6LOWPAN_NETWORK_ID 0x3f
 #endif
 
-
 enum {
   // size of the header not including the length byte
   MAC_HEADER_SIZE = sizeof( cc2420_header_t ) - 1,
@@ -127,6 +183,10 @@ enum {
   MAC_FOOTER_SIZE = sizeof( uint16_t ),
   // MDU
   MAC_PACKET_SIZE = MAC_HEADER_SIZE + TOSH_DATA_LENGTH + MAC_FOOTER_SIZE,
+
+  CC2420_SIZE = MAC_HEADER_SIZE + MAC_FOOTER_SIZE,
+
+  AM_OVERHEAD = 2,
 };
 
 enum cc2420_enums {
@@ -135,7 +195,7 @@ enum cc2420_enums {
   CC2420_TIME_SYMBOL = 2,         // 2 symbols / jiffy
   CC2420_BACKOFF_PERIOD = ( 20 / CC2420_TIME_SYMBOL ), // symbols
   CC2420_MIN_BACKOFF = ( 20 / CC2420_TIME_SYMBOL ),  // platform specific?
-  CC2420_ACK_WAIT_DELAY = 128,    // jiffies
+  CC2420_ACK_WAIT_DELAY = 256,    // jiffies
 };
 
 enum cc2420_status_enums {
@@ -161,7 +221,7 @@ enum cc2420_config_reg_enums {
   CC2420_SACK = 0x0a,
   CC2420_SACKPEND = 0x0b,
   CC2420_SRXDEC = 0x0c,
-  CC2420_SRXENC = 0x0d,
+  CC2420_STXENC = 0x0d,
   CC2420_SAES = 0x0e,
   CC2420_MAIN = 0x10,
   CC2420_MDMCTRL0 = 0x11,
@@ -359,4 +419,25 @@ enum cc2420_sfdmux_enums {
   CC2420_SFDMUX_XOSC16M_STABLE = 24,
 };
 
+enum cc2420_security_enums{
+  CC2420_NO_SEC = 0,
+  CC2420_CBC_MAC = 1,
+  CC2420_CTR = 2,
+  CC2420_CCM = 3,
+  NO_SEC = 0,
+  CBC_MAC_4 = 1,
+  CBC_MAC_8 = 2,
+  CBC_MAC_16 = 3,
+  CTR = 4,
+  CCM_4 = 5,
+  CCM_8 = 6,
+  CCM_16 = 7
+};
+norace uint8_t SECURITYLOCK = 0;
+
+enum
+{
+  CC2420_INVALID_TIMESTAMP  = 0x80000000L,
+};
+
 #endif