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stm32fsdev: Implement dcd_connect.

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This commit is contained in:
Nathan Conrad
2020-04-08 11:51:33 -04:00
parent d6578823bb
commit 715c4dbbf8
7 changed files with 48 additions and 13 deletions
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30
src/portable/st/stm32_fsdev/dcd_stm32_fsdev.c
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@@ -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();
// And finally enable pull-up, which may trigger the RESET IRQ if the host is connected.
// (if this MCU has an internal pullup)
#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
// Data-line pull-up is left disconnected.
}
// Define only on MCU with internal pull-up so BSP can override (needed on MCU without internal pull-up)
#if defined(USB_BCDR_DPPU)
TU_ATTR_WEAK
void dcd_disconnect(uint8_t rhport)
{
(void) rhport;
USB->BCDR &= ~(USB_BCDR_DPPU);
}
TU_ATTR_WEAK
void dcd_connect(uint8_t rhport)
{
(void) rhport;
USB->BCDR |= USB_BCDR_DPPU;
}
#endif
// Enable device interrupt
void dcd_int_enable (uint8_t rhport)
{