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
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
|
/*
* g_dnl.c -- USB Downloader Gadget
*
* Copyright (C) 2012 Samsung Electronics
* Lukasz Majewski <l.majewski@samsung.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <errno.h>
#include <common.h>
#include <malloc.h>
#include <mmc.h>
#include <part.h>
#include <g_dnl.h>
#include "f_dfu.h"
#include "gadget_chips.h"
#include "composite.c"
#include "f_mass_storage.c"
/*
* One needs to define the following:
* CONFIG_G_DNL_VENDOR_NUM
* CONFIG_G_DNL_PRODUCT_NUM
* CONFIG_G_DNL_MANUFACTURER
* at e.g. ./include/configs/<board>.h
*/
#define STRING_MANUFACTURER 25
#define STRING_PRODUCT 2
#define STRING_USBDOWN 2
#define CONFIG_USBDOWNLOADER 2
#define DRIVER_VERSION "usb_dnl 2.0"
static const char shortname[] = "usb_dnl_";
static const char product[] = "USB download gadget";
static const char manufacturer[] = CONFIG_G_DNL_MANUFACTURER;
static struct usb_device_descriptor device_desc = {
.bLength = sizeof device_desc,
.bDescriptorType = USB_DT_DEVICE,
.bcdUSB = __constant_cpu_to_le16(0x0200),
.bDeviceClass = USB_CLASS_COMM,
.bDeviceSubClass = 0x02, /*0x02:CDC-modem , 0x00:CDC-serial*/
.idVendor = __constant_cpu_to_le16(CONFIG_G_DNL_VENDOR_NUM),
.idProduct = __constant_cpu_to_le16(CONFIG_G_DNL_PRODUCT_NUM),
.iProduct = STRING_PRODUCT,
.bNumConfigurations = 1,
};
/* static strings, in UTF-8 */
static struct usb_string g_dnl_string_defs[] = {
{ 0, manufacturer, },
{ 1, product, },
{ } /* end of list */
};
static struct usb_gadget_strings g_dnl_string_tab = {
.language = 0x0409, /* en-us */
.strings = g_dnl_string_defs,
};
static struct usb_gadget_strings *g_dnl_composite_strings[] = {
&g_dnl_string_tab,
NULL,
};
static int g_dnl_unbind(struct usb_composite_dev *cdev)
{
struct usb_gadget *gadget = cdev->gadget;
debug("%s: calling usb_gadget_disconnect for "
"controller '%s'\n", shortname, gadget->name);
usb_gadget_disconnect(gadget);
return 0;
}
static int g_dnl_do_config(struct usb_configuration *c)
{
const char *s = c->cdev->driver->name;
int ret = -1;
debug("%s: configuration: 0x%p composite dev: 0x%p\n",
__func__, c, c->cdev);
printf("GADGET DRIVER: %s\n", s);
if (!strcmp(s, "usb_dnl_dfu"))
ret = dfu_add(c);
else if (!strcmp(s, "usb_dnl_ums"))
ret = fsg_add(c);
return ret;
}
static int g_dnl_config_register(struct usb_composite_dev *cdev)
{
static struct usb_configuration config = {
.label = "usb_dnload",
.bmAttributes = USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER,
.bConfigurationValue = CONFIG_USBDOWNLOADER,
.iConfiguration = STRING_USBDOWN,
.bind = g_dnl_do_config,
};
return usb_add_config(cdev, &config);
}
__weak
int g_dnl_bind_fixup(struct usb_device_descriptor *dev)
{
return 0;
}
static int g_dnl_bind(struct usb_composite_dev *cdev)
{
struct usb_gadget *gadget = cdev->gadget;
int id, ret;
int gcnum;
debug("%s: gadget: 0x%p cdev: 0x%p\n", __func__, gadget, cdev);
id = usb_string_id(cdev);
if (id < 0)
return id;
g_dnl_string_defs[0].id = id;
device_desc.iManufacturer = id;
id = usb_string_id(cdev);
if (id < 0)
return id;
g_dnl_string_defs[1].id = id;
device_desc.iProduct = id;
g_dnl_bind_fixup(&device_desc);
ret = g_dnl_config_register(cdev);
if (ret)
goto error;
gcnum = usb_gadget_controller_number(gadget);
debug("gcnum: %d\n", gcnum);
if (gcnum >= 0)
device_desc.bcdDevice = cpu_to_le16(0x0200 + gcnum);
else {
debug("%s: controller '%s' not recognized\n",
shortname, gadget->name);
device_desc.bcdDevice = __constant_cpu_to_le16(0x9999);
}
debug("%s: calling usb_gadget_connect for "
"controller '%s'\n", shortname, gadget->name);
usb_gadget_connect(gadget);
return 0;
error:
g_dnl_unbind(cdev);
return -ENOMEM;
}
static struct usb_composite_driver g_dnl_driver = {
.name = NULL,
.dev = &device_desc,
.strings = g_dnl_composite_strings,
.bind = g_dnl_bind,
.unbind = g_dnl_unbind,
};
int g_dnl_register(const char *type)
{
/* We only allow "dfu" atm, so 3 should be enough */
static char name[sizeof(shortname) + 3];
int ret;
if (!strcmp(type, "dfu")) {
strcpy(name, shortname);
strcat(name, type);
} else if (!strcmp(type, "ums")) {
strcpy(name, shortname);
strcat(name, type);
} else {
printf("%s: unknown command: %s\n", __func__, type);
return -EINVAL;
}
g_dnl_driver.name = name;
debug("%s: g_dnl_driver.name: %s\n", __func__, g_dnl_driver.name);
ret = usb_composite_register(&g_dnl_driver);
if (ret) {
printf("%s: failed!, error: %d\n", __func__, ret);
return ret;
}
return 0;
}
void g_dnl_unregister(void)
{
usb_composite_unregister(&g_dnl_driver);
}
|
