From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964827AbbFJJTf (ORCPT ); Wed, 10 Jun 2015 05:19:35 -0400 Received: from comal.ext.ti.com ([198.47.26.152]:43334 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753984AbbFJJTJ (ORCPT ); Wed, 10 Jun 2015 05:19:09 -0400 From: Kishon Vijay Abraham I To: , , , CC: , , Subject: [PATCH 3/5] usb: dwc3; ep0: Modify _dwc3_ep0_start_trans_ API to take 'chain' parameter Date: Wed, 10 Jun 2015 14:48:50 +0530 Message-ID: <1433927932-32395-4-git-send-email-kishon@ti.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1433927932-32395-1-git-send-email-kishon@ti.com> References: <1433927932-32395-1-git-send-email-kishon@ti.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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: Kishon Vijay Abraham I --- drivers/usb/dwc3/ep0.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c index 4998074..d1a2be1 100644 --- a/drivers/usb/dwc3/ep0.c +++ b/drivers/usb/dwc3/ep0.c @@ -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, unsigned 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); } @@ -851,7 +851,7 @@ 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); } } @@ -935,7 +935,7 @@ 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; @@ -966,7 +966,7 @@ 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); @@ -976,7 +976,8 @@ 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); @@ -991,7 +992,7 @@ 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) -- 1.7.9.5