* Simplify EINTR/ECANCEL error handling
1. Add semaphore uninterruptible wait function
2 .Replace semaphore wait loop with a single uninterruptible wait
3. Replace all sem_xxx to nxsem_xxx
* Unify the void cast usage
1. Remove void cast for function because many place ignore the returned value witout cast
2. Replace void cast for variable with UNUSED macro
Mac802154 fixes
* mac802154: Frame Version should have been 1, but was being set to 3 when payload exceeds version 0 capabilities.
* mac802154: Corrects function reference in warning print-out
* mac802154/sixlowpan: Adds warning to build to indicate what is noted in the menu for CONFIG_MAC802154_NTXDESC
Approved-by: Gregory Nutt <gnutt@nuttx.org>
mac802154: Fixes issues with extended address. 1) Extended address should be read-only. 2) Extended address should be placed in frame in "reverse-canonical" order.
The extended address is a read-only attribute and thus an attempt to write the extended address should be denied. Instead, the extended address should really be either set by the PHY/radio itself, or provided at board bring-up time to the radio layer. The MAC layer now pulls in the extended address from the radio any time the MAC is reset.
The extended address is also supposed to be sent in the frame in reverse-canonical order. This is very confusing in the standard and it wasn't until I realized it was backwards in Wireshark that I researched this further. Searching online I find documents from the committee for suggestions/feedback on the future standard. It isn't in the 2015 standard but a newer version of the standard will presumably clarify this. It says that the extended address should be written in reverse-canonical form, meaning the OUI comes last, not first inside the frame.
Approved-by: Gregory Nutt <gnutt@nuttx.org>
Mac attributes
* wirelesss/ieee802154/mac802154: Makes comment more clear that it's related to an outbound frame, not an incoming frame.
* wireless/ieee802154: Adds support for getting/setting macMaxFrameRetries via IOCTL
* wireless/.ieee802154/mac802154: Add get support for rxonidle attribute
Approved-by: Gregory Nutt <gnutt@nuttx.org>
mac802154: Adds ackreq flag to TX descriptor for use by radio driver.
The radio layer is responsible for a full "transaction". Because of
differences in radio capabilites, the radio must be responsible for
the handling of acks and retransmissions. This commit simply passes
the ackreq meta-data flag along to the radio.
Approved-by: Gregory Nutt <gnutt@nuttx.org>
