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
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
|
/*
* Copyright (c) 2024, sakumisu
*
* SPDX-License-Identifier: Apache-2.0
*/
#include "usbd_core.h"
#include "usbd_video.h"
#include "pic_data.h"
#define VIDEO_IN_EP 0x81
#ifdef CONFIG_USB_HS
#define MAX_PAYLOAD_SIZE 1024 // for high speed with one transcations every one micro frame
#define VIDEO_PACKET_SIZE (unsigned int)(((MAX_PAYLOAD_SIZE / 1)) | (0x00 << 11))
// #define MAX_PAYLOAD_SIZE 2048 // for high speed with two transcations every one micro frame
// #define VIDEO_PACKET_SIZE (unsigned int)(((MAX_PAYLOAD_SIZE / 2)) | (0x01 << 11))
// #define MAX_PAYLOAD_SIZE 3072 // for high speed with three transcations every one micro frame
// #define VIDEO_PACKET_SIZE (unsigned int)(((MAX_PAYLOAD_SIZE / 3)) | (0x02 << 11))
#else
#define MAX_PAYLOAD_SIZE 1020
#define VIDEO_PACKET_SIZE (unsigned int)(((MAX_PAYLOAD_SIZE / 1)) | (0x00 << 11))
#endif
#define WIDTH (unsigned int)(640)
#define HEIGHT (unsigned int)(480)
#define CAM_FPS (30)
#define INTERVAL (unsigned long)(10000000 / CAM_FPS)
#define MIN_BIT_RATE (unsigned long)(WIDTH * HEIGHT * 16 * CAM_FPS) //16 bit
#define MAX_BIT_RATE (unsigned long)(WIDTH * HEIGHT * 16 * CAM_FPS)
#define MAX_FRAME_SIZE (unsigned long)(WIDTH * HEIGHT * 2)
#define USB_VIDEO_DESC_SIZ (unsigned long)(9 + \
8 + \
9 + \
13 + \
18 + \
9 + \
12 + \
9 + \
14 + \
11 + \
30 + \
9 + \
7)
#define VC_TERMINAL_SIZ (unsigned int)(13 + 18 + 12 + 9)
#define VS_HEADER_SIZ (unsigned int)(13 + 1 + 11 + 30)
#define USBD_VID 0xffff
#define USBD_PID 0xffff
#define USBD_MAX_POWER 100
#define USBD_LANGID_STRING 1033
const uint8_t video_descriptor[] = {
USB_DEVICE_DESCRIPTOR_INIT(USB_2_0, 0xef, 0x02, 0x01, USBD_VID, USBD_PID, 0x0001, 0x01),
USB_CONFIG_DESCRIPTOR_INIT(USB_VIDEO_DESC_SIZ, 0x02, 0x01, USB_CONFIG_BUS_POWERED, USBD_MAX_POWER),
VIDEO_VC_DESCRIPTOR_INIT(0x00, 0, 0x0100, VC_TERMINAL_SIZ, 48000000, 0x02),
VIDEO_VS_DESCRIPTOR_INIT(0x01, 0x00, 0x00),
VIDEO_VS_HEADER_DESCRIPTOR_INIT(0x01, VS_HEADER_SIZ, VIDEO_IN_EP, 0x00),
VIDEO_VS_FORMAT_MJPEG_DESCRIPTOR_INIT(0x01, 0x01),
VIDEO_VS_FRAME_MJPEG_DESCRIPTOR_INIT(0x01, WIDTH, HEIGHT, MIN_BIT_RATE, MAX_BIT_RATE, MAX_FRAME_SIZE, DBVAL(INTERVAL), 0x01, DBVAL(INTERVAL)),
VIDEO_VS_DESCRIPTOR_INIT(0x01, 0x01, 0x01),
/* 1.2.2.2 Standard VideoStream Isochronous Video Data Endpoint Descriptor */
0x07, /* bLength */
USB_DESCRIPTOR_TYPE_ENDPOINT, /* bDescriptorType: ENDPOINT */
0x81, /* bEndpointAddress: IN endpoint 2 */
0x01, /* bmAttributes: Isochronous transfer type. Asynchronous synchronization type. */
WBVAL(VIDEO_PACKET_SIZE), /* wMaxPacketSize */
0x01, /* bInterval: One frame interval */
///////////////////////////////////////
/// string0 descriptor
///////////////////////////////////////
USB_LANGID_INIT(USBD_LANGID_STRING),
///////////////////////////////////////
/// string1 descriptor
///////////////////////////////////////
0x14, /* bLength */
USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
'C', 0x00, /* wcChar0 */
'h', 0x00, /* wcChar1 */
'e', 0x00, /* wcChar2 */
'r', 0x00, /* wcChar3 */
'r', 0x00, /* wcChar4 */
'y', 0x00, /* wcChar5 */
'U', 0x00, /* wcChar6 */
'S', 0x00, /* wcChar7 */
'B', 0x00, /* wcChar8 */
///////////////////////////////////////
/// string2 descriptor
///////////////////////////////////////
0x26, /* bLength */
USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
'C', 0x00, /* wcChar0 */
'h', 0x00, /* wcChar1 */
'e', 0x00, /* wcChar2 */
'r', 0x00, /* wcChar3 */
'r', 0x00, /* wcChar4 */
'y', 0x00, /* wcChar5 */
'U', 0x00, /* wcChar6 */
'S', 0x00, /* wcChar7 */
'B', 0x00, /* wcChar8 */
' ', 0x00, /* wcChar9 */
'U', 0x00, /* wcChar10 */
'V', 0x00, /* wcChar11 */
'C', 0x00, /* wcChar12 */
' ', 0x00, /* wcChar13 */
'D', 0x00, /* wcChar14 */
'E', 0x00, /* wcChar15 */
'M', 0x00, /* wcChar16 */
'O', 0x00, /* wcChar17 */
///////////////////////////////////////
/// string3 descriptor
///////////////////////////////////////
0x16, /* bLength */
USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
'2', 0x00, /* wcChar0 */
'0', 0x00, /* wcChar1 */
'2', 0x00, /* wcChar2 */
'1', 0x00, /* wcChar3 */
'0', 0x00, /* wcChar4 */
'3', 0x00, /* wcChar5 */
'1', 0x00, /* wcChar6 */
'0', 0x00, /* wcChar7 */
'0', 0x00, /* wcChar8 */
'0', 0x00, /* wcChar9 */
#ifdef CONFIG_USB_HS
///////////////////////////////////////
/// device qualifier descriptor
///////////////////////////////////////
0x0a,
USB_DESCRIPTOR_TYPE_DEVICE_QUALIFIER,
0x00,
0x02,
0x00,
0x00,
0x00,
0x40,
0x01,
0x00,
#endif
0x00
};
volatile bool tx_flag = 0;
volatile bool iso_tx_busy = false;
static void usbd_event_handler(uint8_t busid, uint8_t event)
{
switch (event) {
case USBD_EVENT_RESET:
break;
case USBD_EVENT_CONNECTED:
break;
case USBD_EVENT_DISCONNECTED:
break;
case USBD_EVENT_RESUME:
break;
case USBD_EVENT_SUSPEND:
break;
case USBD_EVENT_CONFIGURED:
tx_flag = 0;
iso_tx_busy = false;
break;
case USBD_EVENT_SET_REMOTE_WAKEUP:
break;
case USBD_EVENT_CLR_REMOTE_WAKEUP:
break;
default:
break;
}
}
void usbd_video_open(uint8_t busid, uint8_t intf)
{
tx_flag = 1;
USB_LOG_RAW("OPEN\r\n");
iso_tx_busy = false;
}
void usbd_video_close(uint8_t busid, uint8_t intf)
{
USB_LOG_RAW("CLOSE\r\n");
tx_flag = 0;
iso_tx_busy = false;
}
void usbd_video_iso_callback(uint8_t busid, uint8_t ep, uint32_t nbytes)
{
USB_LOG_RAW("actual in len:%d\r\n", nbytes);
iso_tx_busy = false;
}
static struct usbd_endpoint video_in_ep = {
.ep_cb = usbd_video_iso_callback,
.ep_addr = VIDEO_IN_EP
};
struct usbd_interface intf0;
struct usbd_interface intf1;
void video_init(uint8_t busid, uint32_t reg_base)
{
usbd_desc_register(busid, video_descriptor);
usbd_add_interface(busid, usbd_video_init_intf(busid, &intf0, INTERVAL, MAX_FRAME_SIZE, MAX_PAYLOAD_SIZE));
usbd_add_interface(busid, usbd_video_init_intf(busid, &intf1, INTERVAL, MAX_FRAME_SIZE, MAX_PAYLOAD_SIZE));
usbd_add_endpoint(busid, &video_in_ep);
usbd_initialize(busid, reg_base, usbd_event_handler);
}
USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t packet_buffer[10 * 1024];
void video_test(uint8_t busid)
{
uint32_t out_len;
uint32_t packets;
memset(packet_buffer, 0, 10 * 1024);
while (1) {
if (tx_flag) {
packets = usbd_video_mjpeg_payload_fill(busid, (uint8_t *)jpeg_data, sizeof(jpeg_data), packet_buffer, &out_len);
#if 0
iso_tx_busy = true;
usbd_ep_start_write(busid, VIDEO_IN_EP, packet_buffer, out_len);
while (iso_tx_busy) {
if (tx_flag == 0) {
break;
}
}
#else
/* dwc2 must use this method */
for (uint32_t i = 0; i < packets; i++) {
if (i == (packets - 1)) {
iso_tx_busy = true;
usbd_ep_start_write(busid, VIDEO_IN_EP, &packet_buffer[i * MAX_PAYLOAD_SIZE], out_len - (packets - 1) * MAX_PAYLOAD_SIZE);
while (iso_tx_busy) {
if (tx_flag == 0) {
break;
}
}
} else {
iso_tx_busy = true;
usbd_ep_start_write(busid, VIDEO_IN_EP, &packet_buffer[i * MAX_PAYLOAD_SIZE], MAX_PAYLOAD_SIZE);
while (iso_tx_busy) {
if (tx_flag == 0) {
break;
}
}
}
}
#endif
}
}
}
|
