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/*
* linux/drivers/usb/gadget/jz4740_udc.h
*
* Ingenic JZ4740 on-chip high speed USB device controller
*
* Copyright (C) 2006 Ingenic Semiconductor Inc.
* Author: <jlwei@ingenic.cn>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#ifndef __USB_GADGET_JZ4740_H__
#define __USB_GADGET_JZ4740_H__
/*-------------------------------------------------------------------------*/
// Max packet size
#define EP0_MAXPACKETSIZE 64
#define EPBULK_MAXPACKETSIZE 512
#define EPINTR_MAXPACKETSIZE 64
#define UDC_MAX_ENDPOINTS 4
/*-------------------------------------------------------------------------*/
typedef enum ep_type {
ep_control, ep_bulk_in, ep_bulk_out, ep_interrupt
} ep_type_t;
struct jz4740_ep {
struct usb_ep ep;
struct jz4740_udc *dev;
const struct usb_endpoint_descriptor *desc;
unsigned long pio_irqs;
uint8_t stopped;
uint8_t bEndpointAddress;
uint8_t bmAttributes;
ep_type_t type;
size_t fifo;
u32 csr;
uint32_t reg_addr;
struct list_head queue;
};
struct jz4740_request {
struct usb_request req;
struct list_head queue;
};
enum ep0state {
WAIT_FOR_SETUP, /* between STATUS ack and SETUP report */
DATA_STATE_XMIT, /* data tx stage */
DATA_STATE_NEED_ZLP, /* data tx zlp stage */
WAIT_FOR_OUT_STATUS, /* status stages */
DATA_STATE_RECV, /* data rx stage */
};
/* For function binding with UDC Disable - Added by River */
typedef enum {
UDC_STATE_ENABLE = 0,
UDC_STATE_DISABLE,
}udc_state_t;
struct jz4740_udc {
struct usb_gadget gadget;
struct usb_gadget_driver *driver;
struct device *dev;
spinlock_t lock;
enum ep0state ep0state;
struct jz4740_ep ep[UDC_MAX_ENDPOINTS];
unsigned char usb_address;
udc_state_t state;
struct resource *mem;
void __iomem *base;
int irq;
uint32_t in_mask;
uint32_t out_mask;
struct clk *clk;
};
extern struct jz4740_udc *the_controller;
#define ep_is_in(EP) (((EP)->bEndpointAddress&USB_DIR_IN)==USB_DIR_IN)
#define ep_maxpacket(EP) ((EP)->ep.maxpacket)
#define ep_index(EP) ((EP)->bEndpointAddress&0xF)
#endif /* __USB_GADGET_JZ4740_H__ */
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