linux/drivers/usb/isp1760/isp1760-udc.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Driver for the NXP ISP1761 device controller
 *
 * Copyright 2021 Linaro, Rui Miguel Silva
 * Copyright 2014 Ideas on Board Oy
 *
 * Contacts:
 *	Laurent Pinchart <[email protected]>
 *	Rui Miguel Silva <[email protected]>
 */

#ifndef _ISP1760_UDC_H_
#define _ISP1760_UDC_H_

#include <linux/ioport.h>
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/timer.h>
#include <linux/usb/gadget.h>

#include "isp1760-regs.h"

struct isp1760_device;
struct isp1760_udc;

enum isp1760_ctrl_state { … };

struct isp1760_ep { … };

/**
 * struct isp1760_udc - UDC state information
 * irq: IRQ number
 * irqname: IRQ name (as passed to request_irq)
 * regs: regmap for UDC registers
 * driver: Gadget driver
 * gadget: Gadget device
 * lock: Protects driver, vbus_timer, ep, ep0_*, DC_EPINDEX register
 * ep: Array of endpoints
 * ep0_state: Control request state for endpoint 0
 * ep0_dir: Direction of the current control request
 * ep0_length: Length of the current control request
 * connected: Tracks gadget driver bus connection state
 */
struct isp1760_udc { … };

#ifdef CONFIG_USB_ISP1761_UDC
int isp1760_udc_register(struct isp1760_device *isp, int irq,
			 unsigned long irqflags);
void isp1760_udc_unregister(struct isp1760_device *isp);
#else
static inline int isp1760_udc_register(struct isp1760_device *isp, int irq,
				       unsigned long irqflags)
{
	return 0;
}

static inline void isp1760_udc_unregister(struct isp1760_device *isp)
{
}
#endif

#endif