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usb: dwc3: gadget: use generic map/unmap routines

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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>
This commit is contained in:
Felipe Balbi
2011-12-19 11:32:34 +02:00
parent a698908d3b
commit 0fc9a1be09
4 changed files with 30 additions and 83 deletions
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2
drivers/usb/dwc3/gadget.h
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@@ -108,8 +108,6 @@ int dwc3_gadget_ep0_queue(struct usb_ep *ep, struct usb_request *request,
int __dwc3_gadget_ep_set_halt(struct dwc3_ep *dep, int value);
int dwc3_send_gadget_ep_cmd(struct dwc3 *dwc, unsigned ep,
unsigned cmd, struct dwc3_gadget_ep_cmd_params *params);
void dwc3_map_buffer_to_dma(struct dwc3_request *req);
void dwc3_unmap_buffer_from_dma(struct dwc3_request *req);
/**
* dwc3_gadget_ep_get_transfer_index - Gets transfer index from HW