Introduce a CONFIG_USB build symbol that is set whenever
CONFIG_USBSERIAL or CONFIG_USBCANBUS is set. Use that symbol during
setup so that the USB controller is properly initialized for both usb
serial and usb canbus bridge configurations.
This fixes the clock configuration for usb canbus bridge mode on
stm32f446.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
An mcu device acting as an "mcu bridge" should only be reset after
other normal devices are reset - otherwise the bridge wont be able to
pass along the reset message to the downstream mcus.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Use bootloader_request() instead of try_request_canboot(). This
allows the bootloader machanism to work for more bootloaders.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Rename this board API function to a more generic name. This is in
preparation for calling the function from the canbus code.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
The stm32g0 specification states that it is required to wait for the
CCRDY flag to be raised after changing the channel configuration.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Support a USB interface that shows up as a canbus adapter to linux.
Route both local and real canbus packets over that interface.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Rename the canbus.c code to canserial.c and introduce new wrapper
functions in canbus.c that connect the low-level canbus hardware code
to the high-level canserial.c code.
This is in preparation for adding "usb to canbus bridge mode".
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Move the uuid hash calculation to canbus.c and call canbus_set_uuid()
from src/stm32/chipid.c . This simplifies the low-level canbus
hardware code.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Previously the code had canbus_read() which was called from task
context (for admin messages), and canbus_process_data() which was
called from irq context (used for data messages). Change that to a
single canbus_process_data() function that is called from irq context
(used for all messages). This simplifies the low-level hardware
specific canbus code and should make it easier to support other
hardware implementations.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Create a single CanData global variable to track the canbus state.
ARM micro-controllers generally produce better code when global
variables are in a struct.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
The rp2040 USB may not connect after a reset. Implementation the
recommended workaround.
Signed-off-by: Lasse Dalegaard <dalegaard@gmail.com>
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
The CanBoot bootloader can often fit in 4KiB and that may be useful
for some devices with small flash sizes.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Allows a limited number of DS18B20 read failures
before stopping the printer. This is designed to
tolerate spurious read errors, while still stopping
for serious issues.
The printer will stop when the sensor
fails to report a value five times in a row.
Implementation works as follows:
The MCU reports any read errors using a new "fault"
parameter in its answers.
The Python code tracks the number of errors
and triggers the shutdown. This paves the way for
more sophisticated error handling in the future,
as well as an example for other sensors to follow.
Signed-off-by: Lorenzo Pfeifer <Lorenzo.Pfeifer+github@googlemail.com>
When CanBoot is detected set its bypass signature when a
reset is requested.
Add a "try_request_canboot()" method that may be called
from from USB and Canbus bootloader requests.
Signed-off-by: Eric Callahan <arksine.code@gmail.com>
This adds a command which allows an external script to broadcast a
bootloader request, using a supplied UUID to match the request.
Included is a method to process requests to enter the canboot
bootloader.
Signed-off-by: Eric Callahan <arksine.code@gmail.com>
Kevin O'Connor
BIGTREETECH
adelyser
Kamil Trzciński
bluesforte
Eric Callahan
functionpointer