usb: gadget: support full-speed isoc transfer

diff --git a/drivers/usb/dwc_otg/dwc_otg_cil.c b/drivers/usb/dwc_otg/dwc_otg_cil.c
index f14534394a4c3a8c7c71f89402490cba3bd6e485..f1e39436f5538f81ccd224ec4520801ac47f7641 100755 (executable)
--- a/drivers/usb/dwc_otg/dwc_otg_cil.c
+++ b/drivers/usb/dwc_otg/dwc_otg_cil.c
@@ -2240,7 +2240,10 @@ void dwc_otg_ep_start_transfer(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep)
                                (_ep->xfer_len - 1 + _ep->maxpacket) / 
                                _ep->maxpacket;
                }
-
+               if (_ep->type == DWC_OTG_EP_TYPE_ISOC)
+               {
+                   deptsiz.b.mc = 1;
+               }
                dwc_write_reg32(&in_regs->dieptsiz, deptsiz.d32);
 
                /* Write the DMA register */
@@ -2279,7 +2282,19 @@ void dwc_otg_ep_start_transfer(dwc_otg_core_if_t *_core_if, dwc_ep_t *_ep)
                                }
                        }
                }
-                               
+               if (_ep->type == DWC_OTG_EP_TYPE_ISOC) 
+               {
+                       dsts_data_t dsts = {.d32 = 0 };
+                       dsts.d32 = dwc_read_reg32(&_core_if->dev_if->dev_global_regs->dsts);
+                       if (dsts.b.soffn & 0x1) 
+                       {
+                               depctl.b.setd0pid = 1;
+                       } 
+                       else 
+                       {
+                               depctl.b.setd1pid = 1;
+                       }
+               }
                /* EP enable, IN data in FIFO */
                depctl.b.cnak = 1;
                depctl.b.epena = 1;