diff options
| author | Ha Thach <[email protected]> | 2020-04-11 15:49:34 +0700 |
|---|---|---|
| committer | GitHub <[email protected]> | 2020-04-11 15:49:34 +0700 |
| commit | 04a06ec40147f1f44cfee0567667cc97bbe900ee (patch) | |
| tree | e1efa890fa3ceb93e15244ba6e6df3e61c701910 /src/portable/st | |
| parent | 4748b349a2812fb2e08f7dfd04866afd50acb98f (diff) | |
| parent | 13a3081d308828ae6e4b9a40bb8ac7bf5b0e424c (diff) | |
Merge branch 'master' into refactor-irqhandler
Diffstat (limited to 'src/portable/st')
| -rw-r--r-- | src/portable/st/stm32_fsdev/dcd_stm32_fsdev.c | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/src/portable/st/stm32_fsdev/dcd_stm32_fsdev.c b/src/portable/st/stm32_fsdev/dcd_stm32_fsdev.c index 21cd44396..2939e5ae2 100644 --- a/src/portable/st/stm32_fsdev/dcd_stm32_fsdev.c +++ b/src/portable/st/stm32_fsdev/dcd_stm32_fsdev.c @@ -239,17 +239,29 @@ void dcd_init (uint8_t rhport) } USB->CNTR |= USB_CNTR_RESETM | USB_CNTR_SOFM | USB_CNTR_ESOFM | USB_CNTR_CTRM | USB_CNTR_SUSPM | USB_CNTR_WKUPM; dcd_handle_bus_reset(); + + // Data-line pull-up is left disconnected. +} - // And finally enable pull-up, which may trigger the RESET IRQ if the host is connected. - // (if this MCU has an internal pullup) +// Define only on MCU with internal pull-up. BSP can define on MCU without internal PU. #if defined(USB_BCDR_DPPU) - USB->BCDR |= USB_BCDR_DPPU; -#else - // FIXME: callback to the user to ask them to twiddle a GPIO to disable/enable D+??? -#endif +// Disable internal D+ PU +void dcd_disconnect(uint8_t rhport) +{ + (void) rhport; + USB->BCDR &= ~(USB_BCDR_DPPU); +} + +// Enable internal D+ PU +void dcd_connect(uint8_t rhport) +{ + (void) rhport; + USB->BCDR |= USB_BCDR_DPPU; } +#endif + // Enable device interrupt void dcd_int_enable (uint8_t rhport) { |