Hello.

On 07/06/2012 04:44 PM, Neil Zhang wrote:

> From: Chao Xie <[email protected]>

> In order to support iso, we need do the following things:
> 1. fix length for one dtd
> 22 allow req contains multiple packets for a ISO transfer

  Where are the other 20 things? ;-)

> Signed-off-by: Chao Xie <[email protected]>
> Signed-off-by: Yu Xu <[email protected]>
> Signed-off-by: Neil Zhang <[email protected]>
> ---
>  drivers/usb/gadget/mv_udc_core.c |   22 ++++++++++++++--------
>  1 files changed, 14 insertions(+), 8 deletions(-)

> diff --git a/drivers/usb/gadget/mv_udc_core.c 
> b/drivers/usb/gadget/mv_udc_core.c
> index 4d3a413..bbf6c27 100644
> --- a/drivers/usb/gadget/mv_udc_core.c
> +++ b/drivers/usb/gadget/mv_udc_core.c
> @@ -355,17 +355,25 @@ done:
>       return retval;
>  }
>  
> -
>  static struct mv_dtd *build_dtd(struct mv_req *req, unsigned *length,
>               dma_addr_t *dma, int *is_last)
>  {
> -     u32 temp;
>       struct mv_dtd *dtd;
>       struct mv_udc *udc;
> +     struct mv_dqh *dqh;
> +     u32 temp, mult = 0;
>  
>       /* how big will this transfer be? */
> -     *length = min(req->req.length - req->req.actual,
> -                     (unsigned)EP_MAX_LENGTH_TRANSFER);
> +     if ((req->ep->desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
> +             == USB_ENDPOINT_XFER_ISOC) {

   Why not use usb_endpoint_xfer_isoc(req->ep->desc) instead?

WBR, Sergei
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