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Commit 995a86a6 authored by Vijayavardhan Vennapusa's avatar Vijayavardhan Vennapusa
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USB: dwc3: debugfs: Enable logging of control endpoint events by default 



Enable logging of EP0 control events, which will be useful for analyzing
the USB issues like crash. Also add more required events wherever required.

Change-Id: I0fd3edfa2cd8711928cd480e99abbf8e6f907774
Signed-off-by: default avatarVijayavardhan Vennapusa <vvreddy@codeaurora.org>
parent 31c52fd3

drivers/usb/dwc3/debugfs.c

+2 −2
Original line number Diff line number Diff line
@@ -781,9 +781,9 @@ const struct file_operations dwc3_ep_trb_list_fops = { 
	.release		= single_release,

};



static unsigned int ep_addr_rxdbg_mask;

static unsigned int ep_addr_rxdbg_mask = 1;

module_param(ep_addr_rxdbg_mask, uint, S_IRUGO | S_IWUSR);

static unsigned int ep_addr_txdbg_mask;

static unsigned int ep_addr_txdbg_mask = 1;

module_param(ep_addr_txdbg_mask, uint, S_IRUGO | S_IWUSR);



/* Maximum debug message length */

drivers/usb/dwc3/ep0.c

+7 −2
Original line number Diff line number Diff line
@@ -291,6 +291,7 @@ int dwc3_gadget_ep0_set_halt(struct usb_ep *ep, int value) 
	struct dwc3_ep			*dep = to_dwc3_ep(ep);

	struct dwc3			*dwc = dep->dwc;



	dbg_event(dep->number, "EP0STAL", value);

	dwc3_ep0_stall_and_restart(dwc);



	return 0;
@@ -761,9 +762,11 @@ static void dwc3_ep0_inspect_setup(struct dwc3 *dwc, 
		dwc->delayed_status = true;



out:

	if (ret < 0)

	if (ret < 0) {

		dbg_event(0x0, "ERRSTAL", ret);

		dwc3_ep0_stall_and_restart(dwc);

	}

}



bool zlp_required;

static void dwc3_ep0_complete_data(struct dwc3 *dwc,
@@ -828,7 +831,7 @@ static void dwc3_ep0_complete_data(struct dwc3 *dwc, 


	if ((epnum & 1) && ur->actual < ur->length) {

		/* for some reason we did not get everything out */



		dbg_event(epnum, "INDATSTAL", 0);

		dwc3_ep0_stall_and_restart(dwc);

	} else {

		/*
@@ -864,6 +867,7 @@ static void dwc3_ep0_complete_status(struct dwc3 *dwc, 
		if (ret < 0) {

			dev_dbg(dwc->dev, "Invalid Test #%d\n",

					dwc->test_mode_nr);

			dbg_event(0x00, "INVALTEST", ret);

			dwc3_ep0_stall_and_restart(dwc);

			return;

		}
@@ -1044,6 +1048,7 @@ static void dwc3_ep0_xfernotready(struct dwc3 *dwc, 


			dev_vdbg(dwc->dev, "Wrong direction for Data phase\n");

			dwc3_ep0_end_control_data(dwc, dep);

			dbg_event(epnum, "WRONGDR", 0);

			dwc3_ep0_stall_and_restart(dwc);

			return;

		}

drivers/usb/dwc3/gadget.c

+3 −0
Original line number Diff line number Diff line
@@ -2281,6 +2281,7 @@ static void dwc3_endpoint_interrupt(struct dwc3 *dwc, 
			return;

		}



		dbg_event(dep->number, "XFRCOMP", 0);

		dwc3_endpoint_transfer_complete(dwc, dep, event, 1);

		break;

	case DWC3_DEPEVT_XFERINPROGRESS:
@@ -2290,9 +2291,11 @@ static void dwc3_endpoint_interrupt(struct dwc3 *dwc, 
			return;

		}



		dbg_event(dep->number, "XFRPROG", 0);

		dwc3_endpoint_transfer_complete(dwc, dep, event, 0);

		break;

	case DWC3_DEPEVT_XFERNOTREADY:

		dbg_event(dep->number, "XFRNRDY", 0);

		if (usb_endpoint_xfer_isoc(dep->endpoint.desc)) {

			dwc3_gadget_start_isoc(dwc, dep, event);

		} else {