1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
|
/*
* drivers/usb/gadget/s3c_udc.h
* Samsung S3C on-chip full/high speed USB device controllers
* Copyright (C) 2005 for Samsung Electronics
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#ifndef __S3C_USB_GADGET
#define __S3C_USB_GADGET
#include <asm/errno.h>
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
#include <linux/list.h>
#include <usb/lin_gadget_compat.h>
#define PHY0_SLEEP (1 << 5)
/*-------------------------------------------------------------------------*/
/* DMA bounce buffer size, 16K is enough even for mass storage */
#define DMA_BUFFER_SIZE (4096*4)
#define EP0_FIFO_SIZE 64
#define EP_FIFO_SIZE 512
#define EP_FIFO_SIZE2 1024
/* ep0-control, ep1in-bulk, ep2out-bulk, ep3in-int */
#define S3C_MAX_ENDPOINTS 4
#define S3C_MAX_HW_ENDPOINTS 16
#define WAIT_FOR_SETUP 0
#define DATA_STATE_XMIT 1
#define DATA_STATE_NEED_ZLP 2
#define WAIT_FOR_OUT_STATUS 3
#define DATA_STATE_RECV 4
#define WAIT_FOR_COMPLETE 5
#define WAIT_FOR_OUT_COMPLETE 6
#define WAIT_FOR_IN_COMPLETE 7
#define WAIT_FOR_NULL_COMPLETE 8
#define TEST_J_SEL 0x1
#define TEST_K_SEL 0x2
#define TEST_SE0_NAK_SEL 0x3
#define TEST_PACKET_SEL 0x4
#define TEST_FORCE_ENABLE_SEL 0x5
/* ************************************************************************* */
/* IO
*/
enum ep_type {
ep_control, ep_bulk_in, ep_bulk_out, ep_interrupt
};
struct s3c_ep {
struct usb_ep ep;
struct s3c_udc *dev;
const struct usb_endpoint_descriptor *desc;
struct list_head queue;
unsigned long pio_irqs;
int len;
void *dma_buf;
u8 stopped;
u8 bEndpointAddress;
u8 bmAttributes;
enum ep_type ep_type;
int fifo_num;
};
struct s3c_request {
struct usb_request req;
struct list_head queue;
};
struct s3c_udc {
struct usb_gadget gadget;
struct usb_gadget_driver *driver;
struct s3c_plat_otg_data *pdata;
void *dma_buf[S3C_MAX_ENDPOINTS+1];
dma_addr_t dma_addr[S3C_MAX_ENDPOINTS+1];
int ep0state;
struct s3c_ep ep[S3C_MAX_ENDPOINTS];
unsigned char usb_address;
unsigned req_pending:1, req_std:1, req_config:1;
};
extern struct s3c_udc *the_controller;
#define ep_is_in(EP) (((EP)->bEndpointAddress&USB_DIR_IN) == USB_DIR_IN)
#define ep_index(EP) ((EP)->bEndpointAddress&0xF)
#define ep_maxpacket(EP) ((EP)->ep.maxpacket)
/*-------------------------------------------------------------------------*/
/* #define DEBUG_UDC */
#ifdef DEBUG_UDC
#define DBG(stuff...) printf("udc: " stuff)
#else
#define DBG(stuff...) do {} while (0)
#endif
#ifdef DEBUG_S3C_UDC_SETUP
#define DEBUG_SETUP(fmt, args...) printk(fmt, ##args)
#else
#define DEBUG_SETUP(fmt, args...) do {} while (0)
#endif
#ifdef DEBUG_S3C_UDC_EP0
#define DEBUG_EP0(fmt, args...) printk(fmt, ##args)
#else
#define DEBUG_EP0(fmt, args...) do {} while (0)
#endif
#ifdef DEBUG_S3C_UDC_ISR
#define DEBUG_ISR 1
#else
#define DEBUG_ISR 0
#endif
#ifdef DEBUG_S3C_UDC_OUT_EP
#define DEBUG_OUT_EP(fmt, args...) printk(fmt, ##args)
#else
#define DEBUG_OUT_EP(fmt, args...) do {} while (0)
#endif
#ifdef DEBUG_S3C_UDC_IN_EP
#define DEBUG_IN_EP 1
#else
#define DEBUG_IN_EP 0
#endif
#if defined(DEBUG_S3C_UDC_SETUP) || defined(DEBUG_S3C_UDC_EP0) || \
defined(DEBUG_S3C_UDC_ISR) || defined(DEBUG_S3C_UDC_OUT_EP) || \
defined(DEBUG_S3C_UDC_IN_EP) || defined(DEBUG_S3C_UDC)
#define DEBUG
#endif
#define ERR(stuff...) printf("ERR udc: " stuff)
#define WARN(stuff...) printf("WARNING udc: " stuff)
#define INFO(stuff...) printf("INFO udc: " stuff)
extern void otg_phy_init(struct s3c_udc *dev);
extern void otg_phy_off(struct s3c_udc *dev);
extern void s3c_udc_ep_set_stall(struct s3c_ep *ep);
extern int s3c_udc_probe(struct s3c_plat_otg_data *pdata);
struct s3c_plat_otg_data {
int (*phy_control)(int on);
unsigned int regs_phy;
unsigned int regs_otg;
unsigned int usb_phy_ctrl;
unsigned int usb_flags;
};
#endif
|
