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Use ESOF for wakeup timing.

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This commit is contained in:
Nathan Conrad 2019-09-19 09:51:40 -04:00
parent 642afeea8b
commit 525b4cdb72
1 changed files with 15 additions and 11 deletions
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26
src/portable/st/stm32_fsdev/dcd_stm32_fsdev.c
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@ -121,7 +121,6 @@
#undef USE_HAL_DRIVER
#include "device/dcd.h"
#include "bsp/board.h"
#include "portable/st/stm32_fsdev/dcd_stm32_fsdev_pvt_st.h"
@ -174,6 +173,7 @@ static xfer_ctl_t* xfer_ctl_ptr(uint32_t epnum, uint32_t dir)
static TU_ATTR_ALIGNED(4) uint32_t _setup_packet[6];
static uint8_t newDADDR; // Used to set the new device address during the CTR IRQ handler
static uint8_t remoteWakeCountdown; // When wake is requested
// EP Buffers assigned from end of memory location, to minimize their chance of crashing
// into the stack.
@ -235,7 +235,7 @@ void dcd_init (uint8_t rhport)
{
pma[PMA_STRIDE*(DCD_STM32_BTABLE_BASE + i)] = 0u;
}
USB->CNTR |= USB_CNTR_RESETM | USB_CNTR_SOFM | USB_CNTR_CTRM | USB_CNTR_SUSPM | USB_CNTR_WKUPM;
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.
@ -304,17 +304,9 @@ void dcd_set_config (uint8_t rhport, uint8_t config_num)
void dcd_remote_wakeup(uint8_t rhport)
{
(void) rhport;
uint32_t start;
USB->CNTR |= (uint16_t)USB_CNTR_RESUME;
/* Wait 1 to 15 ms */
/* Busy loop is bad, but the osal_task_delay() isn't implemented for the "none" OSAL */
start = board_millis();
while ((board_millis() - start) < 2)
{
;
}
USB->CNTR &= (uint16_t)(~USB_CNTR_RESUME);
remoteWakeCountdown = 4u; // required to be 1 to 15 ms, ESOF should trigger every 1ms.
}
// I'm getting a weird warning about missing braces here that I don't
@ -566,6 +558,18 @@ static void dcd_fs_irqHandler(void) {
reg16_clear_bits(&USB->ISTR, USB_ISTR_SOF);
dcd_event_bus_signal(0, DCD_EVENT_SOF, true);
}
if(int_status & USB_ISTR_ESOF) {
if(remoteWakeCountdown == 1u)
{
USB->CNTR &= (uint16_t)(~USB_CNTR_RESUME);
}
if(remoteWakeCountdown > 0u)
{
remoteWakeCountdown--;
}
reg16_clear_bits(&USB->ISTR, USB_ISTR_ESOF);
}
}
//--------------------------------------------------------------------+