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able to handle setup packet

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This commit is contained in:
hathach 2019-11-27 16:01:25 +07:00
parent bc21714c7e
commit 6225d5bcfd
1 changed files with 44 additions and 3 deletions
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47
src/portable/microchip/samg/dcd_samg.c
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@ -43,7 +43,14 @@
// Set up endpoint 0, clear all other endpoints
static void bus_reset(void)
{
// Enable EP0 control
UDP->UDP_CSR[0] = UDP_CSR_EPEDS_Msk;
// Enable interrupt : EP0, Suspend, Resume, Wakeup
UDP->UDP_IER = UDP_IER_EP0INT_Msk | UDP_IER_RXSUSP_Msk | UDP_IER_RXRSM_Msk | UDP_IER_WAKEUP_Msk;
// Enable transceiver
UDP->UDP_TXVC &= ~UDP_TXVC_TXVDIS_Msk;
}
// Initialize controller to device mode
@ -54,8 +61,8 @@ void dcd_init (uint8_t rhport)
// Pull-up & Transceiver enable
UDP->UDP_TXVC = UDP_TXVC_PUON;
// Enable pull-up, disable transceiver
UDP->UDP_TXVC = UDP_TXVC_PUON | UDP_TXVC_TXVDIS_Msk;
}
// Enable device interrupt
@ -140,11 +147,45 @@ void dcd_isr(uint8_t rhport)
UDP->UDP_ICR = intr_status;
// Bus reset
if (intr_status & UDP_ISR_ENDBUSRES)
if (intr_status & UDP_ISR_ENDBUSRES_Msk)
{
bus_reset();
dcd_event_bus_signal(rhport, DCD_EVENT_BUS_RESET, true);
}
// SOF
if (intr_status & UDP_ISR_SOFINT_Msk) dcd_event_bus_signal(rhport, DCD_EVENT_SOF, true);
// Suspend
if (intr_status & UDP_ISR_RXSUSP_Msk) dcd_event_bus_signal(rhport, DCD_EVENT_SUSPEND, true);
// Resume
if (intr_status & UDP_ISR_RXRSM_Msk) dcd_event_bus_signal(rhport, DCD_EVENT_RESUME, true);
// Wakeup
// if (intr_status & UDP_ISR_WAKEUP_Msk) dcd_event_bus_signal(rhport, DCD_EVENT_RESUME, true);
//------------- Endpoints -------------//
if ( intr_status & TU_BIT(0) )
{
// setup packet
if (UDP->UDP_CSR[0] & UDP_CSR_RXSETUP)
{
// get setup from FIFO
uint8_t setup[8];
for(uint8_t i=0; i<sizeof(setup); i++)
{
setup[i] = (uint8_t) UDP->UDP_FDR[0];
}
// clear setup bit
UDP->UDP_CSR[0] &= ~UDP_CSR_RXSETUP_Msk;
// notify usbd
dcd_event_setup_received(rhport, setup, true);
}
}
}
#endif