Commit 368ca113 authored by Kishon Vijay Abraham I's avatar Kishon Vijay Abraham I Committed by Felipe Balbi
Browse files

usb: dwc3; ep0: Modify _dwc3_ep0_start_trans_ API to take 'chain' parameter 



No functional change. Added a new parameter in _dwc3_ep0_start_trans_ to
indicate whether the TRB is a chained TRB or last TRB. This is in
preparation for adding chained TRB support for ep0.

Signed-off-by: default avatarKishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent 8a344220

drivers/usb/dwc3/ep0.c

+8 −7
Original line number Diff line number Diff line
@@ -56,7 +56,7 @@ static const char *dwc3_ep0_state_string(enum dwc3_ep0_state state) 
}



static int dwc3_ep0_start_trans(struct dwc3 *dwc, u8 epnum, dma_addr_t buf_dma,

		u32 len, u32 type)

		u32 len, u32 type, bool chain)

{

	struct dwc3_gadget_ep_cmd_params params;

	struct dwc3_trb			*trb;
@@ -302,7 +302,7 @@ void dwc3_ep0_out_start(struct dwc3 *dwc) 
	int				ret;



	ret = dwc3_ep0_start_trans(dwc, 0, dwc->ctrl_req_addr, 8,

			DWC3_TRBCTL_CONTROL_SETUP);

			DWC3_TRBCTL_CONTROL_SETUP, false);

	WARN_ON(ret < 0);

}
@@ -855,7 +855,7 @@ static void dwc3_ep0_complete_data(struct dwc3 *dwc, 


			ret = dwc3_ep0_start_trans(dwc, epnum,

					dwc->ctrl_req_addr, 0,

					DWC3_TRBCTL_CONTROL_DATA);

					DWC3_TRBCTL_CONTROL_DATA, false);

			WARN_ON(ret < 0);

		}

	}
@@ -939,7 +939,7 @@ static void __dwc3_ep0_do_control_data(struct dwc3 *dwc, 
	if (req->request.length == 0) {

		ret = dwc3_ep0_start_trans(dwc, dep->number,

				dwc->ctrl_req_addr, 0,

				DWC3_TRBCTL_CONTROL_DATA);

				DWC3_TRBCTL_CONTROL_DATA, false);

	} else if (!IS_ALIGNED(req->request.length, dep->endpoint.maxpacket)

			&& (dep->number == 0)) {

		u32	transfer_size = 0;
@@ -970,7 +970,7 @@ static void __dwc3_ep0_do_control_data(struct dwc3 *dwc, 
		 */

		ret = dwc3_ep0_start_trans(dwc, dep->number,

				dwc->ep0_bounce_addr, transfer_size,

				DWC3_TRBCTL_CONTROL_DATA);

				DWC3_TRBCTL_CONTROL_DATA, false);

	} else {

		ret = usb_gadget_map_request(&dwc->gadget, &req->request,

				dep->number);
@@ -980,7 +980,8 @@ static void __dwc3_ep0_do_control_data(struct dwc3 *dwc, 
		}



		ret = dwc3_ep0_start_trans(dwc, dep->number, req->request.dma,

				req->request.length, DWC3_TRBCTL_CONTROL_DATA);

				req->request.length, DWC3_TRBCTL_CONTROL_DATA,

				false);

	}



	WARN_ON(ret < 0);
@@ -995,7 +996,7 @@ static int dwc3_ep0_start_control_status(struct dwc3_ep *dep) 
		: DWC3_TRBCTL_CONTROL_STATUS2;



	return dwc3_ep0_start_trans(dwc, dep->number,

			dwc->ctrl_req_addr, 0, type);

			dwc->ctrl_req_addr, 0, type, false);

}



static void __dwc3_ep0_do_control_status(struct dwc3 *dwc, struct dwc3_ep *dep)

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