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stm32h7:USB otgdev Ensure proper EP state 

Repeated automated sercon, serdis on VBUS proved to fail
   for CDCACM DATA IN (device Serial TX). The root cause was
   that the EP was left active after disconnect. This resulted
   in the first serial write falling to kick-off the EP IN request.
   That should restart the EP ISR.
This commit is contained in:
David Sidrane 2021-09-09 07:13:34 -07:00 committed by Anthony Merlino
parent 21f049b43a
commit e488f0047d
1 changed files with 8 additions and 0 deletions
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8
arch/arm/src/stm32h7/stm32_otgdev.c
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@ -2080,6 +2080,8 @@ static void stm32_usbreset(struct stm32_usbdev_s *priv)
/* Reset IN endpoint status */ /* Reset IN endpoint status */
privep->stalled = false; privep->stalled = false;
privep->active = false;
privep->zlp = false;
/* Return read requests to the class implementation */ /* Return read requests to the class implementation */
@ -2089,6 +2091,8 @@ static void stm32_usbreset(struct stm32_usbdev_s *priv)
/* Reset endpoint status */ /* Reset endpoint status */
privep->stalled = false; privep->stalled = false;
privep->active = false;
privep->zlp = false;
} }
stm32_putreg(0xffffffff, STM32_OTG_DAINT); stm32_putreg(0xffffffff, STM32_OTG_DAINT);
@ -3959,6 +3963,8 @@ static int stm32_epout_configure(FAR struct stm32_ep_s *privep,
privep->ep.maxpacket = maxpacket; privep->ep.maxpacket = maxpacket;
privep->eptype = eptype; privep->eptype = eptype;
privep->stalled = false; privep->stalled = false;
privep->active = false;
privep->zlp = false;
} }
/* Enable the interrupt for this endpoint */ /* Enable the interrupt for this endpoint */
@ -4030,6 +4036,8 @@ static int stm32_epin_configure(FAR struct stm32_ep_s *privep,
privep->ep.maxpacket = maxpacket; privep->ep.maxpacket = maxpacket;
privep->eptype = eptype; privep->eptype = eptype;
privep->stalled = false; privep->stalled = false;
privep->active = false;
privep->zlp = false;
} }
/* Enable the interrupt for this endpoint */ /* Enable the interrupt for this endpoint */