Issue: The problem is that there is a race condition introduced in that the LWIP thread is relying on the
interface as it is taken down by a application thread while calling disconnect.
In disconnect api called from application context, whd_emac_wifi_link_state_changed() will refer to netif interface
structure in its callback api netif_link_irq(netif). This netif will be cleared by remove_etherent_interface().
whd_emac_wifi_link_state_changed will post message to tcpip_thread. tcpip_thread will process the message and
call the callback api netif_link_irq(netif)
Calling sequence is whd_emac_wifi_link_state_changed -> remove_etherent_interface(). Hence there is a timing issue
that netif might be cleared first before tcpip thread process the message netif_link_irq(netif)
Fix: remove_etherent_interface() will post message to tcpip thread and tcpip:
thread process the message delete_interface()
which will actually remove the inferface from the netif_list.
Calling sequence is whd_emac_wifi_link_state_changed() message post -> remove_etherent_interface() message post.
message processing order netif_link_irq(netif) -> delete_interface().
Since both the processing is handled in single thread, processing of message is handled sequentially.
This assert in WhdSTAInterface.cpp causes rssi greentea test to fail
on Cypress parts. This is because the rssi GT test expects the negative
test case to return 0 and not assert.
- Remove wounding for the hardware CRYPTO block. The PSoC 6 MPN CYW9P62S1_43012EVB_01 was revised
to add the hardware crypto block.
- Add missing error checks for emac power up.
- Add a multiplied by 2 in the SDIO clock divider calculation to account for internal UDB divider.
Note: Fixes issues with intermittent WiFi firmware load failures on CY8CKIT_062_WIFI_BT,
CYW943012P6EVB_01, CYW9P62S1_43012EVB_01, CYW9P62S1_43438EVB_01.
Cypress Target update to support WiFi Manufacturing Test
Adding IOCTLS in WhdSTAInterface for MFG Test.
Fix WHD EMAC interface to release buffer when emac is not powered up or callback
is not registered.
Arun S
midd
Balaji Subramanyam
Ryan Morse