2017-11-03 04:28:30 -06:00
|
|
|
// SPDX-License-Identifier: GPL-2.0
|
2015-01-20 15:56:01 -07:00
|
|
|
/*
|
|
|
|
* Driver for the NXP ISP1761 device controller
|
|
|
|
*
|
|
|
|
* Copyright 2014 Ideas on Board Oy
|
|
|
|
*
|
|
|
|
* Contacts:
|
|
|
|
* Laurent Pinchart <laurent.pinchart@ideasonboard.com>
|
|
|
|
*/
|
|
|
|
|
|
|
|
#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>
|
|
|
|
|
|
|
|
struct isp1760_device;
|
|
|
|
struct isp1760_udc;
|
|
|
|
|
|
|
|
enum isp1760_ctrl_state {
|
|
|
|
ISP1760_CTRL_SETUP, /* Waiting for a SETUP transaction */
|
|
|
|
ISP1760_CTRL_DATA_IN, /* Setup received, data IN stage */
|
|
|
|
ISP1760_CTRL_DATA_OUT, /* Setup received, data OUT stage */
|
|
|
|
ISP1760_CTRL_STATUS, /* 0-length request in status stage */
|
|
|
|
};
|
|
|
|
|
|
|
|
struct isp1760_ep {
|
|
|
|
struct isp1760_udc *udc;
|
|
|
|
struct usb_ep ep;
|
|
|
|
|
|
|
|
struct list_head queue;
|
|
|
|
|
|
|
|
unsigned int addr;
|
|
|
|
unsigned int maxpacket;
|
|
|
|
char name[7];
|
|
|
|
|
|
|
|
const struct usb_endpoint_descriptor *desc;
|
|
|
|
|
|
|
|
bool rx_pending;
|
|
|
|
bool halted;
|
|
|
|
bool wedged;
|
|
|
|
};
|
|
|
|
|
|
|
|
/**
|
|
|
|
* struct isp1760_udc - UDC state information
|
|
|
|
* irq: IRQ number
|
|
|
|
* irqname: IRQ name (as passed to request_irq)
|
|
|
|
* regs: Base address of the 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 {
|
2015-01-20 15:56:03 -07:00
|
|
|
#ifdef CONFIG_USB_ISP1761_UDC
|
2015-01-20 15:56:01 -07:00
|
|
|
struct isp1760_device *isp;
|
|
|
|
|
|
|
|
int irq;
|
|
|
|
char *irqname;
|
|
|
|
void __iomem *regs;
|
|
|
|
|
|
|
|
struct usb_gadget_driver *driver;
|
|
|
|
struct usb_gadget gadget;
|
|
|
|
|
|
|
|
spinlock_t lock;
|
|
|
|
struct timer_list vbus_timer;
|
|
|
|
|
|
|
|
struct isp1760_ep ep[15];
|
|
|
|
|
|
|
|
enum isp1760_ctrl_state ep0_state;
|
|
|
|
u8 ep0_dir;
|
|
|
|
u16 ep0_length;
|
|
|
|
|
|
|
|
bool connected;
|
|
|
|
|
|
|
|
unsigned int devstatus;
|
|
|
|
#endif
|
|
|
|
};
|
|
|
|
|
2015-01-20 15:56:03 -07:00
|
|
|
#ifdef CONFIG_USB_ISP1761_UDC
|
2015-01-20 15:56:01 -07:00
|
|
|
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
|