commit: 566ccdda07dc5898272b6fbad9c616fc44be305a From: Moiz Sonasath <[email protected]> Date: Wed, 14 Mar 2012 00:44:56 -0500 Subject: usb: dwc3: ep0: Handle requests greater than wMaxPacketSize
To allow ep0 out transfers of upto bounce buffer size instead of maxpacketsize, use the transfer size as multiple of ep0 maxpacket size. Cc: [email protected] Signed-off-by: Moiz Sonasath <[email protected]> Signed-off-by: Partha Basak <[email protected]> Signed-off-by: Felipe Balbi <[email protected]> --- drivers/usb/dwc3/ep0.c | 6 +++++- 1 files changed, 5 insertions(+), 1 deletions(-) diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c index 25910e2..a40d3bb 100644 --- a/drivers/usb/dwc3/ep0.c +++ b/drivers/usb/dwc3/ep0.c @@ -559,8 +559,12 @@ static void dwc3_ep0_complete_data(struct dwc3 *dwc, length = trb->size & DWC3_TRB_SIZE_MASK; if (dwc->ep0_bounced) { + unsigned transfer_size = ur->length; + unsigned maxp = ep0->endpoint.maxpacket; + + transfer_size += (maxp - (transfer_size % maxp)); transferred = min_t(u32, ur->length, - ep0->endpoint.maxpacket - length); + transfer_size - length); memcpy(ur->buf, dwc->ep0_bounce, transferred); dwc->ep0_bounced = false; } else { -- 1.7.3.4 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
