Hello.
On 07/06/2012 04:44 PM, Neil Zhang wrote:
> From: Chao Xie <chao.xie@xxxxxxxxxxx>
> 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 <chao.xie@xxxxxxxxxxx>
> Signed-off-by: Yu Xu <yuxu@xxxxxxxxxxx>
> Signed-off-by: Neil Zhang <zhangwm@xxxxxxxxxxx>
> ---
> 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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