Commit ca143785 authored by Michael Grzeschik's avatar Michael Grzeschik Committed by Felipe Balbi
Browse files

usb: dwc3: gadget: add frame number mask 



This patch adds a define DWC3_FRNUMBER_MASK for the commonly used
0x3fff mask and uses it.

Signed-off-by: default avatarMichael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: default avatarFelipe Balbi <balbi@kernel.org>
parent 7f2ca14d

drivers/usb/dwc3/gadget.c

+2 −2
Original line number Diff line number Diff line
@@ -1403,7 +1403,7 @@ static int dwc3_gadget_start_isoc_quirk(struct dwc3_ep *dep) 
		 * Check if we can start isoc transfer on the next interval or

		 * 4 uframes in the future with BIT[15:14] as dep->combo_num

		 */

		test_frame_number = dep->frame_number & 0x3fff;

		test_frame_number = dep->frame_number & DWC3_FRNUMBER_MASK;

		test_frame_number |= dep->combo_num << 14;

		test_frame_number += max_t(u32, 4, dep->interval);
@@ -1450,7 +1450,7 @@ static int dwc3_gadget_start_isoc_quirk(struct dwc3_ep *dep) 
	else if (test0 && test1)

		dep->combo_num = 0;



	dep->frame_number &= 0x3fff;

	dep->frame_number &= DWC3_FRNUMBER_MASK;

	dep->frame_number |= dep->combo_num << 14;

	dep->frame_number += max_t(u32, 4, dep->interval);

drivers/usb/dwc3/gadget.h

+2 −0
Original line number Diff line number Diff line
@@ -54,6 +54,8 @@ struct dwc3; 
/* U2 Device exit Latency */

#define DWC3_DEFAULT_U2_DEV_EXIT_LAT	0x1FF	/* Less then 511 microsec */



/* Frame/Microframe Number Mask */

#define DWC3_FRNUMBER_MASK		0x3fff

/* -------------------------------------------------------------------------- */



#define to_dwc3_request(r)	(container_of(r, struct dwc3_request, request))

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