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usb: Only enable the SOF interrupt if user_callback_sof is given.

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Otherwise we get 1 kHz of SOF interrupts even if we don't need them.

Originally reported by Uwe in https://github.com/libopencm3/libopencm3/pull/274
but BuFran provided a reworked implementation.
This commit is contained in:
Frantisek Burian
2014-12-19 00:53:21 +01:00
committed by Karl Palsson
parent 13004f81ee
commit 0cc0134f21
4 changed files with 14 additions and 4 deletions
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3
lib/usb/usb_f207.c
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@@ -82,8 +82,7 @@ static usbd_device *stm32f207_usbd_init(void)
OTG_HS_GINTMSK_RXFLVLM |
OTG_HS_GINTMSK_IEPINT |
OTG_HS_GINTMSK_USBSUSPM |
OTG_HS_GINTMSK_WUIM |
OTG_HS_GINTMSK_SOFM;
OTG_HS_GINTMSK_WUIM;
OTG_HS_DAINTMSK = 0xF;
OTG_HS_DIEPMSK = OTG_HS_DIEPMSK_XFRCM;