add support to tell if shared DMA channel is actually shared
avoid starting and stopping the timer peripheral with bdshot
ensure that rcout DMA allocation and deallocation happens entirely within the lock
increase rcout thread working area for bdshot
fix mode mask that is sent to the iomcu
ensure iomcu rcout thread gets timeouts for callbacks
control bdshot input and output line levels on f103
use input capture channel pairs to read rising and falling edges of telemetry on f103
reset channel pairs together on iomcu
generalize the bdshot input path to support suitable buffer sizes for iomcu
generalize DMAR reading of CCR registers to read two at a time on iomcu
enable bi-directional dshot channels on PWM1-4 on iomcu
add methods to directly access erpm values from rcout
update erpm mask and esc telemetry correctly for firmware supporting dshot
add support for propagating bdmask to iomcu
dshot commands to all channels need to be aware of iomcu
ensure esc type is propagated to iomcu
cope with iomcu channel numbering when using EDT
ensure pwm driver is reset properly for dshot commands on iomcu
correctly reset pwm for dshot commands
correctly mask off bdshot bits going to iomcu
don't reset GPIO modes on disabled lines
don't reset pwm_started when sharing DMA channels
set thread name on iomcu rcout and reduce stack size on iomcu
ensure that bdshot pulses with no response are handled correctly
correctly setup DMA for input capture on f103
deal with out of order captured bytes when decoding bdshot telemetry
ensure DMA sharing on f103 does not pull lines low
only disable the timer peripheral when switching DMA channels on iomcu
add support for waiting for _UP to finish before proceeding with dshot
re-order iomcu dshot channels to let TIM4_UP go first
ensure that a cascading event will always come when expected on rcout
allow timeouts when using cascading dshot
always rotate telemetry channel after trying to capture input
cater for both in order and out-of-order bdshot telemetry packets
cope with reversed packets when decoding bdshot telemetry
ensure UP DMA channel is fully free on iomcu before starting next dshot cycle
refactor rcout for iofirmware into separate file
this changes the heuristics for UART TX DMA allocation to greatly
reduce the chances of DMA contention causing long delays on other
devices
This fixes issues with FETTec driver output and gimbal status messages
as reported by Amilcar and OlliW. The problem is particularly bad when
no GPS is connected to GPS1 on fmuv3 and derived boards (such as
CubeBlack)
key changes:
- remember the contention_counter across begin() calls, as the GPS
calls begin with new baudrates regularly
- added a is_shared() API to Shared_DMA, allowing the UART driver to
avoid TX DMA on shared streams when at low baudrates.
refactor rcout into separate thread and process all dshot requests there
move uart DMA completion to event model
process dshot locks in strick reverse order when unlocking
convert Shared_DMA to use mutexes
move UART transmit to a thread-per-uart
do blocking UART DMA transactions
do blocking dshot DMA transactions
trim stack sizes
cancel dma transactions on dshot when timeout occurs
support contention stats on blocking locking
move thread supression into chibios_hwdef.py
invalidate DMA bounce buffer correctly
separate UART initialisation into two halves
cleanup UART transaction timeouts
add @SYS/uarts.txt
move half-duplex handling to TX thread
correct thread statistics after use of ExpandingString
set unbuffered TX thread priority owner + 1
correctly unlock serial_led_send()
don't share IMU RX on KakuteF7Mini
observe dshot pulse time more accurately.
set TRBUFF bit for UART DMA transfers
deal with UART DMA timeouts correctly
don't deadlock on reverse ordered DMA locks
change PORT_INT_REQUIRED_STACK to 128
we can have multiple UARTs on the same thread sharing the same DMA TX
channel. That can lead to deadlock with blocking locks on DMA. This
makes UART requests for DMA locks non-blocking to fix the issue
this fixes a problem with the ICM-20789 on I2C where a reboot while the bus is active
leaves the IMU in a dead state where it can't be recovered without a power cycle.
Andrew Tridgell
Andy Piper
Peter Barker
Mirko Denecke
Siddharth Purohit