diff options
| author | Felipe Balbi | 2017-04-07 13:34:21 +0300 |
|---|---|---|
| committer | Felipe Balbi | 2017-04-11 10:58:28 +0300 |
| commit | 7d5e650a5fdb82ec1994497de174650767862a49 (patch) | |
| tree | 42a94e14351c6bc233b9041b8c392ff24360306d /drivers/usb/dwc3/ep0.c | |
| parent | 374a1020d21b238d566e523a3bfd8fd9ee628c6b (diff) | |
usb: dwc3: ep0: use immediate SETUP on TRB
If we pass TRB's own address on bpl/bph fields, we can get our SETUP
packet as immediate data on the TRB itself, without having to allocate
extra memory for it.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/dwc3/ep0.c')
| -rw-r--r-- | drivers/usb/dwc3/ep0.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c index e689cede9b0e..da5e085e7889 100644 --- a/drivers/usb/dwc3/ep0.c +++ b/drivers/usb/dwc3/ep0.c @@ -283,7 +283,7 @@ void dwc3_ep0_out_start(struct dwc3 *dwc) complete(&dwc->ep0_in_setup); - dwc3_ep0_prepare_one_trb(dwc, 0, dwc->ctrl_req_addr, 8, + dwc3_ep0_prepare_one_trb(dwc, 0, dwc->ep0_trb_addr, 8, DWC3_TRBCTL_CONTROL_SETUP, false); ret = dwc3_ep0_start_trans(dwc, 0); WARN_ON(ret < 0); @@ -794,7 +794,7 @@ static int dwc3_ep0_std_request(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl) static void dwc3_ep0_inspect_setup(struct dwc3 *dwc, const struct dwc3_event_depevt *event) { - struct usb_ctrlrequest *ctrl = dwc->ctrl_req; + struct usb_ctrlrequest *ctrl = (void *) dwc->ep0_trb; int ret = -EINVAL; u32 len; @@ -916,7 +916,7 @@ static void dwc3_ep0_complete_data(struct dwc3 *dwc, dwc->ep0_next_event = DWC3_EP0_COMPLETE; - dwc3_ep0_prepare_one_trb(dwc, epnum, dwc->ctrl_req_addr, + dwc3_ep0_prepare_one_trb(dwc, epnum, dwc->ep0_trb_addr, 0, DWC3_TRBCTL_CONTROL_DATA, false); ret = dwc3_ep0_start_trans(dwc, epnum); WARN_ON(ret < 0); @@ -997,8 +997,9 @@ static void __dwc3_ep0_do_control_data(struct dwc3 *dwc, req->direction = !!dep->number; if (req->request.length == 0) { + dwc3_ep0_prepare_one_trb(dwc, dep->number, - dwc->ctrl_req_addr, 0, + dwc->ep0_trb_addr, 0, DWC3_TRBCTL_CONTROL_DATA, false); ret = dwc3_ep0_start_trans(dwc, dep->number); } else if (!IS_ALIGNED(req->request.length, dep->endpoint.maxpacket) @@ -1056,7 +1057,7 @@ static int dwc3_ep0_start_control_status(struct dwc3_ep *dep) : DWC3_TRBCTL_CONTROL_STATUS2; dwc3_ep0_prepare_one_trb(dwc, dep->number, - dwc->ctrl_req_addr, 0, type, false); + dwc->ep0_trb_addr, 0, type, false); return dwc3_ep0_start_trans(dwc, dep->number); } |