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espressif_tinyusb
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Fixes RP2040 buffer reallocation overrun problem (#642) 

Fix running out of memory on a device that repeatedly closes and opens an endpoint. This is a workaround at the moment. A better solution would be to implement reclaiming usb buffer memory when closing an endpoint (i.e. implement dcd_edpt_close).
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ndinsmore 2021-02-12 03:16:46 -05:00 committed by GitHub
parent 04ab6b4082
commit 09868434cd
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1 changed files with 6 additions and 2 deletions
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8
src/portable/raspberrypi/rp2040/dcd_rp2040.c
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@ -164,8 +164,12 @@ static void _hw_endpoint_init(struct hw_endpoint *ep, uint8_t ep_addr, uint wMax
ep->endpoint_control = &usb_dpram->ep_ctrl[num-1].out;
}
// Now alloc a buffer and fill in endpoint control register
_hw_endpoint_alloc(ep);
// Now if it hasn't already been done
//alloc a buffer and fill in endpoint control register
if(!(ep->configured))
{
_hw_endpoint_alloc(ep);
}
}
ep->configured = true;