diff options
| author | Felipe Balbi <balbi@ti.com> | 2011-12-19 11:32:34 +0200 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2012-02-28 14:48:54 +0200 |
| commit | 0fc9a1be09d9f8b19bcf64ab96836cb92beb0970 (patch) | |
| tree | 0aa8fa3ad9f5341356ba82b4ab7765077df5055e /drivers/usb/dwc3/ep0.c | |
| parent | a698908d3b3be915ac20cd37faeff1216f6b4fe8 (diff) | |
usb: dwc3: gadget: use generic map/unmap routines
those routines have everything we need to map/unmap
USB requests and it's better to use them.
In order to achieve that, we had to add a simple
change on how we allocate and use our setup buffer;
we cannot allocate it from coherent anymore otherwise
the generic map/unmap routines won't be able to easily
know that the GetStatus request already has a DMA
address.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/dwc3/ep0.c')
| -rw-r--r-- | drivers/usb/dwc3/ep0.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c index 2f51de57593a..24137d8563c9 100644 --- a/drivers/usb/dwc3/ep0.c +++ b/drivers/usb/dwc3/ep0.c @@ -309,7 +309,7 @@ static int dwc3_ep0_handle_status(struct dwc3 *dwc, dep = dwc->eps[0]; dwc->ep0_usb_req.dep = dep; dwc->ep0_usb_req.request.length = sizeof(*response_pkt); - dwc->ep0_usb_req.request.dma = dwc->setup_buf_addr; + dwc->ep0_usb_req.request.buf = dwc->setup_buf; dwc->ep0_usb_req.request.complete = dwc3_ep0_status_cmpl; return __dwc3_gadget_ep0_queue(dep, &dwc->ep0_usb_req); @@ -686,7 +686,12 @@ static void dwc3_ep0_do_control_data(struct dwc3 *dwc, DWC3_TRBCTL_CONTROL_DATA); } else if ((req->request.length % dep->endpoint.maxpacket) && (event->endpoint_number == 0)) { - dwc3_map_buffer_to_dma(req); + ret = usb_gadget_map_request(&dwc->gadget, &req->request, + event->endpoint_number); + if (ret) { + dev_dbg(dwc->dev, "failed to map request\n"); + return; + } WARN_ON(req->request.length > dep->endpoint.maxpacket); @@ -701,7 +706,12 @@ static void dwc3_ep0_do_control_data(struct dwc3 *dwc, dwc->ep0_bounce_addr, dep->endpoint.maxpacket, DWC3_TRBCTL_CONTROL_DATA); } else { - dwc3_map_buffer_to_dma(req); + ret = usb_gadget_map_request(&dwc->gadget, &req->request, + event->endpoint_number); + if (ret) { + dev_dbg(dwc->dev, "failed to map request\n"); + return; + } ret = dwc3_ep0_start_trans(dwc, event->endpoint_number, req->request.dma, req->request.length, |