diff options
Diffstat (limited to 'drivers/usb/chipidea/udc.c')
| -rw-r--r-- | drivers/usb/chipidea/udc.c | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c index 69d20fbb38a..80de2f88ed2 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -393,6 +393,14 @@ static int add_td_to_list(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq, node->ptr->token = cpu_to_le32(length << __ffs(TD_TOTAL_BYTES)); node->ptr->token &= cpu_to_le32(TD_TOTAL_BYTES); node->ptr->token |= cpu_to_le32(TD_STATUS_ACTIVE); + if (hwep->type == USB_ENDPOINT_XFER_ISOC && hwep->dir == TX) { + u32 mul = hwreq->req.length / hwep->ep.maxpacket; + + if (hwreq->req.length == 0 + || hwreq->req.length % hwep->ep.maxpacket) + mul++; + node->ptr->token |= mul << __ffs(TD_MULTO); + } temp = (u32) (hwreq->req.dma + hwreq->req.actual); if (length) { @@ -515,10 +523,11 @@ static int _hardware_enqueue(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq) hwep->qh.ptr->td.token &= cpu_to_le32(~(TD_STATUS_HALTED|TD_STATUS_ACTIVE)); - if (hwep->type == USB_ENDPOINT_XFER_ISOC) { + if (hwep->type == USB_ENDPOINT_XFER_ISOC && hwep->dir == RX) { u32 mul = hwreq->req.length / hwep->ep.maxpacket; - if (hwreq->req.length % hwep->ep.maxpacket) + if (hwreq->req.length == 0 + || hwreq->req.length % hwep->ep.maxpacket) mul++; hwep->qh.ptr->cap |= mul << __ffs(QH_MULT); } @@ -1173,6 +1182,12 @@ static int ep_enable(struct usb_ep *ep, if (hwep->num) cap |= QH_ZLT; cap |= (hwep->ep.maxpacket << __ffs(QH_MAX_PKT)) & QH_MAX_PKT; + /* + * For ISO-TX, we set mult at QH as the largest value, and use + * MultO at TD as real mult value. + */ + if (hwep->type == USB_ENDPOINT_XFER_ISOC && hwep->dir == TX) + cap |= 3 << __ffs(QH_MULT); hwep->qh.ptr->cap = cpu_to_le32(cap); @@ -1566,7 +1581,7 @@ static int init_eps(struct ci_hdrc *ci) * eps, maxP is set by epautoconfig() called * by gadget layer */ - hwep->ep.maxpacket = (unsigned short)~0; + usb_ep_set_maxpacket_limit(&hwep->ep, (unsigned short)~0); INIT_LIST_HEAD(&hwep->qh.queue); hwep->qh.ptr = dma_pool_alloc(ci->qh_pool, GFP_KERNEL, @@ -1586,7 +1601,7 @@ static int init_eps(struct ci_hdrc *ci) else ci->ep0in = hwep; - hwep->ep.maxpacket = CTRL_PAYLOAD_MAX; + usb_ep_set_maxpacket_limit(&hwep->ep, CTRL_PAYLOAD_MAX); continue; } |