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
|
/*
Copyright (c) 2002 Finger Lakes Instrumentation (FLI), L.L.C.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following
disclaimer in the documentation and/or other materials
provided with the distribution.
Neither the name of Finger Lakes Instrumentation (FLI), LLC
nor the names of its contributors may be used to endorse or
promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
======================================================================
Finger Lakes Instrumentation, L.L.C. (FLI)
web: http://www.fli-cam.com
email: support@fli-cam.com
*/
#include <unistd.h>
#include <sys/types.h>
#include <sys/ioctl.h>
#include <stdio.h>
#include <errno.h>
#include "libfli-libfli.h"
#include "libfli-sys.h"
#include "libfli-usb.h"
#define USB_DIR_OUT 0 /* to device */
#define USB_DIR_IN 0x80 /* to host */
#define USBDEVFS_CLAIMINTERFACE _IOR('U', 15, unsigned int)
#define USBDEVFS_BULK _IOWR('U', 2, struct usbdevfs_bulktransfer)
#define USBDEVFS_RELEASEINTERFACE _IOR('U', 16, unsigned int)
#define IOCTL_USB_RESET _IO('U', 20)
/* Device descriptor */
typedef struct
{
u_int8_t bLength;
u_int8_t bDescriptorType;
u_int16_t bcdUSB;
u_int8_t bDeviceClass;
u_int8_t bDeviceSubClass;
u_int8_t bDeviceProtocol;
u_int8_t bMaxPacketSize0;
u_int16_t idVendor;
u_int16_t idProduct;
u_int16_t bcdDevice;
u_int8_t iManufacturer;
u_int8_t iProduct;
u_int8_t iSerialNumber;
u_int8_t bNumConfigurations;
} usb_device_descriptor __attribute__ ((packed));
struct usbdevfs_bulktransfer {
unsigned int ep;
unsigned int len;
unsigned int timeout; /* in milliseconds */
void *data;
};
long linux_usb_reset(flidev_t dev);
long unix_usbverifydescriptor(flidev_t dev, fli_unixio_t *io)
{
usb_device_descriptor usb_desc;
int r;
if ((r = read(io->fd, &usb_desc, sizeof(usb_device_descriptor))) !=
sizeof(usb_device_descriptor))
{
debug(FLIDEBUG_FAIL, "linux_usbverifydescriptor(): Could not read descriptor.");
return -EIO;
}
else
{
debug(FLIDEBUG_INFO, "USB device descriptor:");
if(usb_desc.idVendor != 0x0f18)
{
debug(FLIDEBUG_FAIL, "linux_usbverifydescriptor(): Not a FLI device!");
return -ENODEV;
}
switch(DEVICE->domain)
{
case FLIDOMAIN_USB:
if( (usb_desc.idProduct != 0x0002) &&
(usb_desc.idProduct != 0x0006) &&
(usb_desc.idProduct != 0x0007) ) {
return -ENODEV;
}
break;
default:
return -EINVAL;
break;
}
DEVICE->devinfo.fwrev = usb_desc.bcdDevice;
}
return 0;
}
static long linux_bulktransfer(flidev_t dev, int ep, void *buf, long *len)
{
fli_unixio_t *io;
unsigned int iface = 0;
struct usbdevfs_bulktransfer bulk;
unsigned int tbytes = 0;
long bytes;
/* This section of code has been modified since the Linux kernel has (had)
a 4096 byte limit (kernel page size) on the IOCTL for data transfer.
We ran into a problem when the CCD camera became large and the data
transfer requirements grew. */
io = DEVICE->io_data;
/* Claim the interface */
if (ioctl(io->fd, USBDEVFS_CLAIMINTERFACE, &iface))
return -errno;
/* #define _DEBUG */
#ifdef _DEBUG
if ((ep & 0xf0) == 0) {
char buffer[1024];
int i;
sprintf(buffer, "OUT %6ld: ", *len);
for (i = 0; i < ((*len > 16)?16:*len); i++) {
sprintf(buffer + strlen(buffer), "%02x ", ((unsigned char *) buf)[i]);
}
debug(FLIDEBUG_INFO, buffer);
}
#endif /* _DEBUG */
while (tbytes < (unsigned) *len) {
bulk.ep = ep;
bulk.len = ((*len - tbytes) > 4096)?4096:(*len - tbytes);
bulk.timeout = DEVICE->io_timeout;
bulk.data = buf + tbytes;
/* This ioctl return the number of bytes transfered */
if((bytes = ioctl(io->fd, USBDEVFS_BULK, &bulk)) != (long) bulk.len)
break;
tbytes += bytes;
}
#ifdef _DEBUG
if ((ep & 0xf0) != 0) {
char buffer[1024];
int i;
sprintf(buffer, " IN %6ld: ", *len);
for (i = 0; i < ((*len > 16)?16:*len); i++) {
sprintf(buffer + strlen(buffer), "%02x ", ((unsigned char *) buf)[i]);
}
debug(FLIDEBUG_INFO, buffer);
}
#endif /* _DEBUG */
/* Release the interface */
/* if (ioctl(io->fd, USBDEVFS_RELEASEINTERFACE, &iface))
return -errno; */
if ((unsigned) *len != tbytes)
return -errno;
else
return 0;
}
long linux_bulkwrite(flidev_t dev, void *buf, long *wlen)
{
return linux_bulktransfer(dev, FLI_CMD_ENDPOINT | USB_DIR_OUT, buf, wlen);
}
long linux_bulkread(flidev_t dev, void *buf, long *rlen)
{
return linux_bulktransfer(dev, FLI_CMD_ENDPOINT | USB_DIR_IN, buf, rlen);
}
long linux_usb_reset(flidev_t dev)
{
fli_unixio_t *io;
io = DEVICE->io_data;
return (ioctl(io->fd, IOCTL_USB_RESET, NULL));
}
|
