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Commit ac7fdb24 authored by Prasadarao Durvasula's avatar Prasadarao Durvasula Committed by Sivasri Kumar Vanka
Browse files

usb: gadget: u_qdss: Add chipidea support 



Add chipidea support to qdss function for 4.14 kernel.

Change-Id: Ia96096c4233205ce301726fb51c94a1e0befead4
Signed-off-by: default avatarPrasadarao Durvasula <pdurvasu@codeaurora.org>
Signed-off-by: default avatarSivasri Kumar Vanka <sivasri@codeaurora.org>
parent 699bd58b

drivers/usb/gadget/function/u_qdss.c

+29 −8
Original line number Diff line number Diff line 
/*

 * Copyright (c) 2012-2017, The Linux Foundation. All rights reserved.

 * Copyright (c) 2012-2017, 2020 The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -21,6 +21,7 @@ static int alloc_sps_req(struct usb_ep *data_ep) 
{

	struct usb_request *req = NULL;

	struct f_qdss *qdss = data_ep->driver_data;

	struct usb_gadget *gadget = qdss->gadget;

	u32 sps_params = 0;



	pr_debug("send_sps_req\n");
@@ -31,9 +32,17 @@ static int alloc_sps_req(struct usb_ep *data_ep) 
		return -ENOMEM;

	}



	if (!gadget->is_chipidea) {

		req->length = 32*1024;

		sps_params = MSM_SPS_MODE | MSM_DISABLE_WB |

				qdss->bam_info.usb_bam_pipe_idx;

	} else {

		/* non DWC3 BAM requires req->length to be 0 */

		req->length = 0;

		sps_params = (MSM_SPS_MODE | qdss->bam_info.usb_bam_pipe_idx |

				MSM_VENDOR_ID) & ~MSM_IS_FINITE_TRANSFER;

	}



	req->udc_priv = sps_params;

	qdss->endless_req = req;
@@ -107,6 +116,7 @@ int set_qdss_data_connection(struct f_qdss *qdss, int enable) 
				NULL, bam_info.data_fifo, NULL);



		alloc_sps_req(qdss->port.data);

		if (!gadget->is_chipidea)

			msm_data_fifo_config(qdss->port.data,

				bam_info.data_fifo->iova,

				bam_info.data_fifo->size,
@@ -132,8 +142,14 @@ int set_qdss_data_connection(struct f_qdss *qdss, int enable) 
static int init_data(struct usb_ep *ep)

{

	struct f_qdss *qdss = ep->driver_data;

	struct usb_gadget *gadget = qdss->gadget;

	int res = 0;



	if (gadget->is_chipidea) {

		pr_debug("QDSS is used with non DWC3 core\n");

		return res;

	}



	pr_debug("%s\n", __func__);



	res = msm_ep_config(ep, qdss->endless_req);
@@ -145,8 +161,13 @@ static int init_data(struct usb_ep *ep) 


int uninit_data(struct usb_ep *ep)

{

	struct f_qdss *qdss = ep->driver_data;

	struct usb_gadget *gadget = qdss->gadget;

	int res = 0;



	if (gadget->is_chipidea)

		return res;



	pr_debug("%s\n", __func__);



	res = msm_ep_unconfig(ep);