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-rw-r--r--src/portable/st/synopsys/dcd_synopsys.c14
1 files changed, 4 insertions, 10 deletions
diff --git a/src/portable/st/synopsys/dcd_synopsys.c b/src/portable/st/synopsys/dcd_synopsys.c
index 739361da9..39d8fe73d 100644
--- a/src/portable/st/synopsys/dcd_synopsys.c
+++ b/src/portable/st/synopsys/dcd_synopsys.c
@@ -125,8 +125,7 @@ enum
// We disable SOF for now until needed later on
#define USE_SOF 0
-static TU_ATTR_ALIGNED(4) uint32_t _setup_packet[6];
-static uint8_t _setup_offs; // We store up to 3 setup packets.
+static TU_ATTR_ALIGNED(4) uint32_t _setup_packet[2];
typedef struct {
uint8_t * buffer;
@@ -670,17 +669,14 @@ static void read_rx_fifo(uint8_t rhport, USB_OTG_OUTEndpointTypeDef * out_ep)
case 0x03: // Out packet done (Interrupt)
break;
case 0x04: // Setup packet done (Interrupt)
- _setup_offs = 2 - ((out_ep[epnum].DOEPTSIZ & USB_OTG_DOEPTSIZ_STUPCNT_Msk) >> USB_OTG_DOEPTSIZ_STUPCNT_Pos);
out_ep[epnum].DOEPTSIZ |= (3 << USB_OTG_DOEPTSIZ_STUPCNT_Pos);
break;
case 0x06: // Setup packet recvd
{
- uint8_t setup_left = ((out_ep[epnum].DOEPTSIZ & USB_OTG_DOEPTSIZ_STUPCNT_Msk) >> USB_OTG_DOEPTSIZ_STUPCNT_Pos);
-
// We can receive up to three setup packets in succession, but
// only the last one is valid.
- _setup_packet[4 - 2*setup_left] = (* rx_fifo);
- _setup_packet[5 - 2*setup_left] = (* rx_fifo);
+ _setup_packet[0] = (* rx_fifo);
+ _setup_packet[1] = (* rx_fifo);
}
break;
default: // Invalid
@@ -699,8 +695,7 @@ static void handle_epout_ints(uint8_t rhport, USB_OTG_DeviceTypeDef * dev, USB_O
// SETUP packet Setup Phase done.
if(out_ep[n].DOEPINT & USB_OTG_DOEPINT_STUP) {
out_ep[n].DOEPINT = USB_OTG_DOEPINT_STUP;
- dcd_event_setup_received(rhport, (uint8_t*) &_setup_packet[2*_setup_offs], true);
- _setup_offs = 0;
+ dcd_event_setup_received(rhport, (uint8_t*) &_setup_packet[0], true);
}
// OUT XFER complete (single packet).
@@ -736,7 +731,6 @@ static void handle_epin_ints(uint8_t rhport, USB_OTG_DeviceTypeDef * dev, USB_OT
if ( dev->DAINT & (1 << (USB_OTG_DAINT_IEPINT_Pos + n)) )
{
-
// IN XFER complete (entire xfer).
if ( in_ep[n].DIEPINT & USB_OTG_DIEPINT_XFRC )
{