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
14#ifndef _S3C2410_UDC_H
15#define _S3C2410_UDC_H
16
17struct s3c2410_ep {
18	struct list_head		queue;
19	unsigned long			last_io;	/* jiffies timestamp */
20	struct usb_gadget		*gadget;
21	struct s3c2410_udc		*dev;
22	struct usb_ep			ep;
23	u8				num;
24
25	unsigned short			fifo_size;
26	u8				bEndpointAddress;
27	u8				bmAttributes;
28
29	unsigned			halted : 1;
30	unsigned			already_seen : 1;
31	unsigned			setup_stage : 1;
32};
33
34
35/* Warning : ep0 has a fifo of 16 bytes */
36/* Don't try to set 32 or 64            */
37/* also testusb 14 fails  wit 16 but is */
38/* fine with 8                          */
39#define EP0_FIFO_SIZE		 8
40#define EP_FIFO_SIZE		64
41#define DEFAULT_POWER_STATE	0x00
42
43#define S3C2440_EP_FIFO_SIZE	128
44
45static const char ep0name [] = "ep0";
46
47static const char *const ep_name[] = {
48	ep0name,                                /* everyone has ep0 */
49	/* s3c2410 four bidirectional bulk endpoints */
50	"ep1-bulk", "ep2-bulk", "ep3-bulk", "ep4-bulk",
51};
52
53#define S3C2410_ENDPOINTS       ARRAY_SIZE(ep_name)
54
55struct s3c2410_request {
56	struct list_head		queue;		/* ep's requests */
57	struct usb_request		req;
58};
59
60enum ep0_state {
61        EP0_IDLE,
62        EP0_IN_DATA_PHASE,
63        EP0_OUT_DATA_PHASE,
64        EP0_END_XFER,
65        EP0_STALL,
66};
67
68static const char *ep0states[]= {
69        "EP0_IDLE",
70        "EP0_IN_DATA_PHASE",
71        "EP0_OUT_DATA_PHASE",
72        "EP0_END_XFER",
73        "EP0_STALL",
74};
75
76struct s3c2410_udc {
77	spinlock_t			lock;
78
79	struct s3c2410_ep		ep[S3C2410_ENDPOINTS];
80	int				address;
81	struct usb_gadget		gadget;
82	struct usb_gadget_driver	*driver;
83	struct s3c2410_request		fifo_req;
84	u8				fifo_buf[EP_FIFO_SIZE];
85	u16				devstatus;
86
87	u32				port_status;
88	int				ep0state;
89
90	unsigned			got_irq : 1;
91
92	unsigned			req_std : 1;
93	unsigned			req_config : 1;
94	unsigned			req_pending : 1;
95	u8				vbus;
96	struct dentry			*regs_info;
97};
98#define to_s3c2410(g)	(container_of((g), struct s3c2410_udc, gadget))
99
100#endif
101