cregit-Linux how code gets into the kernel

Release 4.11 drivers/usb/gadget/udc/s3c2410_udc.h

/*
 * 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>
 *
 * 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 _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;
	
struct dentry			*regs_info;
};

#define to_s3c2410(g)	(container_of((g), struct s3c2410_udc, gadget))

#endif

Overall Contributors

PersonTokensPropCommitsCommitProp
Arnaud Patard23996.76%133.33%
Felipe Balbi72.83%133.33%
Al Viro10.40%133.33%
Total247100.00%3100.00%
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