Summary:
- Add Raspberry Pi Pico (RP2040) USB device controller support.
- Confirmed that CDC/ACM, MSC and these composite device are working.
- The current implementation have an unresolved issue and some workaround
for USB MSC SCSI driver is required.
See the comment in the patch "usbmsc: Add USBMSC_NOT_STALL_BULKEP for RP2040 workaround".
Impact:
- RP2040 only
Testing:
- Tested with Windows 10 and Ubuntu-18.04/20.04 as the USB host.
- Tested configurations:
- raspberrypi-pico:usbnsh
- raspberrypi-pico:usbmsc
- raspberrypi-pico:composite
Drop to user-space in kernel/protected build with up_pthread_exit,
now all pthread_cleanup functions executed in user mode.
* A new syscall SYS_pthread_exit added
* A new tcb flag TCB_FLAG_CANCEL_DOING added
* up_pthread_exit implemented for riscv/arm arch
Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
Summary:
- In the previous implementation, the build system stops if
PICO_SDK_PATH is not set.
- However, this behavior is not good for CI. Because the path
is only used to generate a flash image.
- This commit fixes this issue
Impact:
- rp2040 only
Testing:
- Tested with and without PICO_SDK_PATH
