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sw: usb-epfifo: disable usb events before disconnect

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If we don't disconnect the usb event system, then we will lock up
in an irq storm.

Signed-off-by: Sean Cross <sean@xobs.io>
This commit is contained in:
Sean Cross
2019-04-02 16:39:13 +08:00
parent 8599ec7007
commit 33aec0876b
1 changed files with 3 additions and 0 deletions
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3
sw/src/usb-epfifo.c
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@@ -41,6 +41,9 @@ enum epfifo_response {
#define USB_EV_PACKET 2 #define USB_EV_PACKET 2
void usb_disconnect(void) { void usb_disconnect(void) {
usb_ep_0_out_ev_enable_write(0);
usb_ep_0_in_ev_enable_write(0);
irq_setmask(irq_getmask() & ~(1 << USB_INTERRUPT));
usb_pullup_out_write(0); usb_pullup_out_write(0);
} }