diff options
Diffstat (limited to 'nuttx/arch/arm/src/stm32')
| -rw-r--r-- | nuttx/arch/arm/src/stm32/stm32_otgfsdev.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/nuttx/arch/arm/src/stm32/stm32_otgfsdev.c b/nuttx/arch/arm/src/stm32/stm32_otgfsdev.c index 461d500ad..2d6ca9831 100644 --- a/nuttx/arch/arm/src/stm32/stm32_otgfsdev.c +++ b/nuttx/arch/arm/src/stm32/stm32_otgfsdev.c @@ -3900,7 +3900,7 @@ static void stm32_epout_disable(FAR struct stm32_ep_s *privep) * Name: stm32_epin_disable * * Description: - * Diable an IN endpoint will no longer be used + * Disable an IN endpoint when it will no longer be used * *******************************************************************************/ @@ -3912,6 +3912,17 @@ static void stm32_epin_disable(FAR struct stm32_ep_s *privep) usbtrace(TRACE_EPDISABLE, privep->epphy); + /* After USB reset, the endpoint will already be deactivated by the + * hardware. Trying to disable again will just hang in the wait. + */ + + regaddr = STM32_OTGFS_DIEPCTL(privep->epphy); + regval = stm32_getreg(regaddr); + if ((regval & OTGFS_DIEPCTL_USBAEP) == 0) + { + return; + } + /* Make sure that there is no pending IPEPNE interrupt (because we are * to poll this bit below). */ |