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// SPDX-License-Identifier: GPL-2.0+
/*
* linux/drivers/usb/gadget/s3c2410_udc.h
* Samsung on-chip full speed USB device controllers
*
* Copyright (C) 2004-2007 Herbert Pötzl - Arnaud Patard
* Additional cleanups by Ben Dooks <ben-linux@fluff.org>
*/
#ifndef _S3C2410_UDC_H
#define _S3C2410_UDC_H
struct s3c2410_ep {
struct list_head queue;
unsigned long last_io; /* jiffies timestamp */
struct usb_gadget *gadget;
struct s3c2410_udc *dev;
struct usb_ep ep;
u8 num;
unsigned short fifo_size;
u8 bEndpointAddress;
u8 bmAttributes;
unsigned halted : 1;
unsigned already_seen : 1;
unsigned setup_stage : 1;
};
/* Warning : ep0 has a fifo of 16 bytes */
/* Don't try to set 32 or 64 */
/* also testusb 14 fails wit 16 but is */
/* fine with 8 */
#define EP0_FIFO_SIZE 8
#define EP_FIFO_SIZE 64
#define DEFAULT_POWER_STATE 0x00
#define S3C2440_EP_FIFO_SIZE 128
static const char ep0name [] = "ep0";
static const char *const ep_name[] = {
ep0name, /* everyone has ep0 */
/* s3c2410 four bidirectional bulk endpoints */
"ep1-bulk", "ep2-bulk", "ep3-bulk", "ep4-bulk",
};
#define S3C2410_ENDPOINTS ARRAY_SIZE(ep_name)
struct s3c2410_request {
struct list_head queue; /* ep's requests */
struct usb_request req;
};
enum ep0_state {
EP0_IDLE,
EP0_IN_DATA_PHASE,
EP0_OUT_DATA_PHASE,
EP0_END_XFER,
EP0_STALL,
};
static const char *ep0states[]= {
"EP0_IDLE",
"EP0_IN_DATA_PHASE",
"EP0_OUT_DATA_PHASE",
"EP0_END_XFER",
"EP0_STALL",
};
struct s3c2410_udc {
spinlock_t lock;
struct s3c2410_ep ep[S3C2410_ENDPOINTS];
int address;
struct usb_gadget gadget;
struct usb_gadget_driver *driver;
struct s3c2410_request fifo_req;
u8 fifo_buf[EP_FIFO_SIZE];
u16 devstatus;
u32 port_status;
int ep0state;
unsigned got_irq : 1;
unsigned req_std : 1;
unsigned req_config : 1;
unsigned req_pending : 1;
u8 vbus;
int irq;
};
#define to_s3c2410(g) (container_of((g), struct s3c2410_udc, gadget))
#endif
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