1/*
  2 * linux/drivers/usb/gadget/s3c2410_udc.h
  3 * Samsung on-chip full speed USB device controllers
  4 *
  5 * Copyright (C) 2004-2007 Herbert Pötzl - Arnaud Patard
  6 *	Additional cleanups by Ben Dooks <ben-linux@fluff.org>
  7 *
  8 * This program is free software; you can redistribute it and/or modify
  9 * it under the terms of the GNU General Public License as published by
 10 * the Free Software Foundation; either version 2 of the License, or
 11 * (at your option) any later version.
 12 *
 13 * This program is distributed in the hope that it will be useful,
 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 16 * GNU General Public License for more details.
 17 *
 18 * You should have received a copy of the GNU General Public License
 19 * along with this program; if not, write to the Free Software
 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 21 *
 22 */
 23
 24#ifndef _S3C2410_UDC_H
 25#define _S3C2410_UDC_H
 26
 27struct s3c2410_ep {
 28	struct list_head		queue;
 29	unsigned long			last_io;	/* jiffies timestamp */
 30	struct usb_gadget		*gadget;
 31	struct s3c2410_udc		*dev;
 32	const struct usb_endpoint_descriptor *desc;
 33	struct usb_ep			ep;
 34	u8				num;
 35
 36	unsigned short			fifo_size;
 37	u8				bEndpointAddress;
 38	u8				bmAttributes;
 39
 40	unsigned			halted : 1;
 41	unsigned			already_seen : 1;
 42	unsigned			setup_stage : 1;
 43};
 44
 45
 46/* Warning : ep0 has a fifo of 16 bytes */
 47/* Don't try to set 32 or 64            */
 48/* also testusb 14 fails  wit 16 but is */
 49/* fine with 8                          */
 50#define EP0_FIFO_SIZE		 8
 51#define EP_FIFO_SIZE		64
 52#define DEFAULT_POWER_STATE	0x00
 53
 54#define S3C2440_EP_FIFO_SIZE	128
 55
 56static const char ep0name [] = "ep0";
 57
 58static const char *const ep_name[] = {
 59	ep0name,                                /* everyone has ep0 */
 60	/* s3c2410 four bidirectional bulk endpoints */
 61	"ep1-bulk", "ep2-bulk", "ep3-bulk", "ep4-bulk",
 62};
 63
 64#define S3C2410_ENDPOINTS       ARRAY_SIZE(ep_name)
 65
 66struct s3c2410_request {
 67	struct list_head		queue;		/* ep's requests */
 68	struct usb_request		req;
 69};
 70
 71enum ep0_state {
 72        EP0_IDLE,
 73        EP0_IN_DATA_PHASE,
 74        EP0_OUT_DATA_PHASE,
 75        EP0_END_XFER,
 76        EP0_STALL,
 77};
 78
 79static const char *ep0states[]= {
 80        "EP0_IDLE",
 81        "EP0_IN_DATA_PHASE",
 82        "EP0_OUT_DATA_PHASE",
 83        "EP0_END_XFER",
 84        "EP0_STALL",
 85};
 86
 87struct s3c2410_udc {
 88	spinlock_t			lock;
 89
 90	struct s3c2410_ep		ep[S3C2410_ENDPOINTS];
 91	int				address;
 92	struct usb_gadget		gadget;
 93	struct usb_gadget_driver	*driver;
 94	struct s3c2410_request		fifo_req;
 95	u8				fifo_buf[EP_FIFO_SIZE];
 96	u16				devstatus;
 97
 98	u32				port_status;
 99	int				ep0state;
100
101	unsigned			got_irq : 1;
102
103	unsigned			req_std : 1;
104	unsigned			req_config : 1;
105	unsigned			req_pending : 1;
106	u8				vbus;
107	struct dentry			*regs_info;
108};
109
110#endif