Hello.

On 5/18/2016 2:16 AM, John Youn wrote:

From: Vardan Mikayelyan <mvar...@synopsys.com>

Increases and checks targeted frame number of current ep
if overrun happened, sets flag and masks with DSTS_SOFFN_LIMIT

Added following fields to struct dwc2_hsotg_ep
-target_frame: Targeted frame num to setup next ISOC transfer
-frame_overrun: Indicates SOF number overrun in DSTS

Signed-off-by: Vardan Mikayelyan <mvar...@synopsys.com>
Signed-off-by: John Youn <johny...@synopsys.com>
---
 drivers/usb/dwc2/core.h   |  5 +++++
 drivers/usb/dwc2/gadget.c | 19 +++++++++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/drivers/usb/dwc2/core.h b/drivers/usb/dwc2/core.h
index 3c58d63..1b37164 100644
--- a/drivers/usb/dwc2/core.h
+++ b/drivers/usb/dwc2/core.h
@@ -150,6 +150,8 @@ struct dwc2_hsotg_req;
  * @fifo_load: The amount of data loaded into the FIFO (periodic IN)
  * @last_load: The offset of data for the last start of request.
  * @size_loaded: The last loaded size for DxEPTSIZE for periodic IN
+ * @target_frame: Targeted frame num to setup next ISOC transfer
+ * @frame_overrun: Indicates SOF number overrun in DSTS
  *
  * This is the driver's state for each registered enpoint, allowing it
  * to keep track of transactions that need doing. Each endpoint has a
@@ -187,6 +189,9 @@ struct dwc2_hsotg_ep {
        unsigned int            isochronous:1;
        unsigned int            send_zlp:1;
        unsigned int            has_correct_parity:1;
+       unsigned int            target_frame;
+#define TARGET_FRAME_INITIAL   0xFFFFFFFF
+       unsigned char           frame_overrun;

   bool, perhaps?


        char                    name[10];
 };
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index 22d4f5b..7f15bc0 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
[...]

MBR, Sergei

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