tinyUSB: Upgraded tinyUSB

[alphaFred]

Upgraded tinyUSB to latest commit of it's master branch to take over
fixes for high-speed devices With this commit the prelimiary fix done here (#6122) will be resolved.

Performed necessary integration of new library into mimxrt and samd ports.

Changes in tinyUSB API:

• tud_isr changed to tud_int_handler
• tud_cdc_write_flush is now returning number of transmitted bytes

[iabdalkader]

Note if this is the latest tinyusb you also need to call the IRQ handler in the nrf port:

void USBD_IRQHandler(void)
{
    dcd_int_handler(0);
}

[dpgeorge]

Thanks for this, and sorry it got completely neglected.

I tested it on mimxrt and samd and it has reliability problems. But actually the original code had such problems and it really needs to be fixed properly.

[dpgeorge]

This call needs to run in a loop until there is enough space to write. Otherwise there is now out-going flow control and this loop can overflow the CDC.

[dpgeorge]

This PR is superseded by commits 9b7d8b8, 035d161

[dpgeorge]

Note if this is the latest tinyusb you also need to call the IRQ handler in the nrf port:

@iabdalkader it certainly seems like the nrf port should add USBD_IRQHandler, but it seems to work correctly without it (using tinyusb 0.8.0). At least it works for me on a Particle Xenon board (nRF52840).

Do you have any other nrf-USB based boards that you can test the latest code on to see if USB CDC works for you?

[iabdalkader]

Do you have any other nrf-USB based boards that you can test the latest code on to see if USB CDC works for you?

@dpgeorge Yes I do, Nano 33 BLE, with a clean checkout I tested the latest changes and it doesn't work unless I add this to mphalport.c:

#include "usb_cdc.h"
void USBD_IRQHandler(void)
{
    dcd_int_handler(0);
}

I have board files for Nano if you'd like to test.

EDIT: from the porting.md:

##### dcd_int_handler
Processes all the hardware generated events e.g Bus reset, new data packet from host etc ... It will be called by application in the MCU USB interrupt handler.

And the change log in 0.7.0:

- Rename USB IRQ Handler to `dcd_int_handler()`. Application must define IRQ handler in which it calls this API.

Note tud_int_handler is just a define for dcd_int_handler:

#define tud_int_handler   dcd_int_handler

[dpgeorge]

Yes I do, Nano 33 BLE, with a clean checkout I tested the latest changes and it doesn't work unless I add this to mphalport.c:

Ok, thanks for checking. I added this IRQ handler in 701fdca