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
|
#include <stdlib.h>
#include <stdint.h>
#include <board.h>
#include <utility/trace.h>
#include <utility/led.h>
#include <usb/common/core/USBGenericRequest.h>
#include <usb/device/core/USBD.h>
#include <usb/device/core/USBDDriver.h>
#include <usb/device/core/USBDDriverDescriptors.h>
#include <usb/device/core/USBDCallbacks.h>
#include <usb/common/audio/AUDGenericRequest.h>
#include <usb/common/audio/AUDFeatureUnitRequest.h>
#include <AUDDFastSourceDescriptors.h>
#include <fast_source.h>
extern const USBDDriverDescriptors auddFastSourceDriverDescriptors;
static unsigned char driver_interfaces[3];
static USBDDriver fast_source_driver;
#define EP_NR 6
/* callback */
void USBDCallbacks_RequestReceived(const USBGenericRequest *request)
{
fastsource_req_hdlr(request);
}
void USBDDriverCallbacks_InterfaceSettingChanged(unsigned char interface,
unsigned char setting)
{
if ((interface == AUDDLoopRecDriverDescriptors_STREAMING)
&& (setting == 0))
LED_Clear(USBD_LEDOTHER);
else
LED_Set(USBD_LEDOTHER);
}
static void fastsource_get_feat_cur_val(uint8_t entity, uint8_t channel,
uint8_t control, uint8_t length)
{
/* FIXME */
USBD_Stall(0);
}
static void fastsource_set_feat_cur_val(uint8_t entity, uint8_t channel,
uint8_t control, uint8_t length)
{
/* FIXME */
USBD_Stall(0);
}
void fastsource_req_hdlr(const USBGenericRequest *request)
{
unsigned char entity;
unsigned char interface;
switch (USBGenericRequest_GetType(request)) {
case USBGenericRequest_STANDARD:
USBDDriver_RequestHandler(&fast_source_driver, request);
return;
case USBGenericRequest_CLASS:
/* continue below */
break;
default:
TRACE_WARNING("Unsupported request type %u\n\r",
USBGenericRequest_GetType(request));
USBD_Stall(0);
return;
}
switch (USBGenericRequest_GetRequest(request)) {
case AUDGenericRequest_SETCUR:
entity = AUDGenericRequest_GetEntity(request);
interface = AUDGenericRequest_GetInterface(request);
if (((entity == AUDDLoopRecDriverDescriptors_FEATUREUNIT) ||
(entity == AUDDLoopRecDriverDescriptors_FEATUREUNIT_REC)) &&
(interface == AUDDLoopRecDriverDescriptors_CONTROL)) {
fastsource_set_feat_cur_val(entity,
AUDFeatureUnitRequest_GetChannel(request),
AUDFeatureUnitRequest_GetControl(request),
USBGenericRequest_GetLength(request));
} else {
TRACE_WARNING("Unsupported entity/interface combination 0x%04x\n\r",
USBGenericRequest_GetIndex(request));
USBD_Stall(0);
}
break;
case AUDGenericRequest_GETCUR:
entity = AUDGenericRequest_GetEntity(request);
interface = AUDGenericRequest_GetInterface(request);
if (((entity == AUDDLoopRecDriverDescriptors_FEATUREUNIT) ||
(entity == AUDDLoopRecDriverDescriptors_FEATUREUNIT_REC)) &&
(interface == AUDDLoopRecDriverDescriptors_CONTROL)) {
fastsource_get_feat_cur_val(entity,
AUDFeatureUnitRequest_GetChannel(request),
AUDFeatureUnitRequest_GetControl(request),
USBGenericRequest_GetLength(request));
} else {
TRACE_WARNING("Unsupported entity/interface combination 0x%04x\n\r",
USBGenericRequest_GetIndex(request));
USBD_Stall(0);
}
break;
default:
TRACE_WARNING("Unsupported request %u\n\r",
USBGenericRequest_GetIndex(request));
USBD_Stall(0);
break;
}
}
void fastsource_init(void)
{
USBDDriver_Initialize(&fast_source_driver, &auddFastSourceDriverDescriptors,
driver_interfaces);
USBD_Init();
}
const uint8_t test_data[AUDDLoopRecDriver_BYTESPERFRAME] = {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f };
static void wr_compl_cb(void *arg, unsigned char status, unsigned int transferred,
unsigned int remain)
{
//TRACE_INFO("COMPL: status %u transferred %u remain %u\r\n", status, transferred, remain);
//TRACE_INFO(".");
if (status == 0 && remain == 0) {
fastsource_start();
} else {
TRACE_WARNING("Err: EP%u wr_compl, status 0x%02u, xfr %u, remain %u\r\n",
EP_NR, status, transferred, remain);
}
}
void fastsource_start(void)
{
//TRACE_WARNING("DATA: %02x %02x %02x %02x\r\n", test_data[0], test_data[1], test_data[2], test_data[3]);
USBD_Write(EP_NR, test_data, sizeof(test_data), wr_compl_cb, NULL);
}
|
