lr-wpan: Ongoing changes to the PHY and MAC

The lr-wpan PHY and MAC are going through a series of changes.

The present issue is raised to document and list future changes and changes done so far.

Additions:

• Add support of pagination to the existing PHY !959 (merged)
• Addition of Command frames (packet headers) used by the association and scanning process !981 (merged)
• Add Capability and descriptors support !981 (merged)
• Add ED scanning support to the MAC !991 (merged)
• Add PASSIVE and ACTIVE scanning support to the MAC !997 (merged)
• Add support for changing PHY Rx Sensitivity !1006 (merged)
• Add support for adjusting ED threshold parameters (affects scanning and CCA)
• Pending transaction list and association support params. !1026 (merged)
• Adds support for association (network bootstrap) !1072 (merged)
• Indirect Data transmissions support
• Beacon Payload support and MLME-SET partial support !1268 (merged)
• GTS support
• Add attributes to MLME-SET and MLME-GET !1402 (merged) and !1711 (merged) !1927 (merged) !2082 (merged)
• Add ORPHAN scan support !1399 (merged)
• Adds capability to get the LQI from any received frame !1645 (merged)
• Adds GetExtendedAddressRequest to the MAC layer !1927 (merged)
• PHY preamble and RSSI support !2592
• BPSK and O-QPSK on different bands
• Dissassociation support
• Mac association tests.

Bug Fixes and Changes

• Fixes PHY not going to TRX_OFF after CSMA-CA failure (rxOnWhenIdle(false)) !983 (merged)
• Fixes PHY reaction after a TX during BUSY_RX !1120 (merged) (Fixes #428 (closed) and #505 (closed))
• Tx Queue pointer fixes and add Queue limits !1131 (merged) (Fixes #692 (closed))
• Change use of constants as attributes (Fixes #865) (Related #823 (closed))
• Addressing mode (Ext & short) and manual association fixes !1347 (merged) (Fixes #636 (closed))
• Fixes issues during MAC scan !1406 (merged)
• Remove unnecessary Bcst filter from MAC !1591 (merged)
• Add CapabilityField bitmap functions !1604 (merged)
• Fix incorrect param in AssociateConfirm !1635 (merged)
• Fixes PHY BUSY_RX -> RX_ON operation !1673 (merged)
• Change CapabilityField to standard bitmap !1686 (merged)
• Change SuperframeField to standard bitmap !1698 (merged)
• Create MAC layer abstraction (decoupling, allowing alternative MACs) !1706 (merged)
• Revise MAC traces (See https://www.nsnam.org/bugzilla/show_bug.cgi?id=443 and discussion on !1673 (merged))
• DoDispose SIGSEGV and beacon fixes !1769 (merged)
• Refactor MAC PdData.indication into smaller readable pieces (Reduce bloat)
  • See !2001 (merged)
  • See !2451 (merged)
  • See !2464 (merged)
  • See !2478 (merged)
• Unify the "status" enum from all MAC primitives into a single enum. !1794 (merged)
• Sanitizer, optimizations
• CCA fail to detect packets (vulnerable window) #1114 (closed) !2123 (merged)
• namespace !1926 (merged) !2163 (merged)
• Add Aggregation support of a LrWpanMacBase in LrWpanNetDevice. !2270 (merged) (Solves !2233 (closed) issue)
• Fix PHY initialization in LrWpanNetDevice affecting MobilityHelper !2286 (merged)
• Fix association response before data request ack issue !2334 (merged)