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
27 struct 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
56 static const char ep0name [] = "ep0";
57
58 static 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
66 struct s3c2410_request {
67 struct list_head queue; /* ep's requests */
68 struct usb_request req;
69 };
70
71 enum ep0_state {
72 EP0_IDLE,
73 EP0_IN_DATA_PHASE,
74 EP0_OUT_DATA_PHASE,
75 EP0_END_XFER,
76 EP0_STALL,
77 };
78
79 static 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
87 struct 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
111
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