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
|
/*
Q Light Controller
unixpeperonidevice.cpp
Copyright (c) Heikki Junnila
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0.txt
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#include <QDebug>
#include <libusb.h>
#include "unixpeperonidevice.h"
#include "peperonidefs.h"
UnixPeperoniDevice::UnixPeperoniDevice(const QVariant& uid, const QString& name,
struct libusb_device* device,
const struct libusb_device_descriptor* desc,
QObject* parent)
: OutputDevice(uid, name, parent)
, m_device(device)
, m_handle(NULL)
, m_firmwareVersion(desc->bcdDevice)
, m_configuration(PEPERONI_CONF_TXONLY)
{
Q_ASSERT(device != NULL);
Q_ASSERT(desc != NULL);
libusb_ref_device(m_device);
if (m_firmwareVersion < PEPERONI_FW_BLOCKING_WRITE_SUPPORT)
m_blockingControlWrite = PEPERONI_TX_MEM_NONBLOCK;
else
m_blockingControlWrite = PEPERONI_TX_MEM_BLOCK;
/* Use configuration #2 on X-Switch */
if (desc->idProduct == PEPERONI_PID_XSWITCH)
m_configuration = PEPERONI_CONF_TXRX;
}
UnixPeperoniDevice::~UnixPeperoniDevice()
{
close();
libusb_unref_device(m_device);
m_device = NULL;
}
void UnixPeperoniDevice::open()
{
qDebug() << Q_FUNC_INFO;
if (isOpen() == true)
return;
int r = libusb_open(m_device, &m_handle);
if (r < 0)
{
qWarning() << "Unable to open device:" << r;
m_handle = NULL;
return;
}
/* Set selected configuration */
r = libusb_set_configuration(m_handle, m_configuration);
if (r < 0)
qWarning() << "Unable to set configuration #" << m_configuration << ":" << r;
/* We must claim the interface before doing anything */
r = libusb_claim_interface(m_handle, PEPERONI_IFACE_EP0);
if (r < 0)
qWarning() << "Unable to claim interface EP0:" << r;
/* Set DMX startcode */
r = libusb_control_transfer(m_handle,
LIBUSB_REQUEST_TYPE_VENDOR |
LIBUSB_RECIPIENT_INTERFACE |
LIBUSB_ENDPOINT_OUT,
PEPERONI_TX_STARTCODE, // Set DMX startcode
0, // Standard startcode is 0
0, // No index
NULL, // No data
0, // Zero data length
50); // Timeout (ms)
if (r < 0)
qWarning() << "Unable to set 0 as the DMX startcode:" << r;
if (m_firmwareVersion >= PEPERONI_FW_BULK_SUPPORT)
{
/* Allocate space for bulk buffer */
m_bulkBuffer = QByteArray(512 + PEPERONI_OLD_BULK_HEADER_SIZE, 0);
/* Sometimes you need a little jolt to get the device on its feet. */
r = libusb_clear_halt(m_handle, PEPERONI_BULK_OUT_ENDPOINT);
if (r < 0)
qWarning() << "Unable to reset bulk endpoint:" << r;
}
}
void UnixPeperoniDevice::close()
{
qDebug() << Q_FUNC_INFO;
if (isOpen() == false)
return;
/* Release the interface in case we claimed it */
int r = libusb_release_interface(m_handle, PEPERONI_IFACE_EP0);
if (r < 0)
qWarning() << "Unable to release interface EP0:" << r;
libusb_close(m_handle);
m_handle = NULL;
}
bool UnixPeperoniDevice::isOpen() const
{
if (m_handle != NULL)
return true;
else
return false;
}
void UnixPeperoniDevice::writeChannel(ushort channel, uchar value)
{
Q_UNUSED(channel);
Q_UNUSED(value);
}
void UnixPeperoniDevice::writeUniverse(const QByteArray& universe)
{
if (m_handle == NULL)
return;
int r = -1;
/* Choose write method based on firmware version. One has to unplug
and then re-plug the dongle in apple for bulk write to work,
so disable it for apple, since control msg should work for all. */
#if !defined(__APPLE__) && !defined(Q_OS_MAC)
if (m_firmwareVersion < PEPERONI_FW_BULK_SUPPORT)
{
#endif
r = libusb_control_transfer(m_handle,
LIBUSB_REQUEST_TYPE_VENDOR |
LIBUSB_RECIPIENT_INTERFACE |
LIBUSB_ENDPOINT_OUT,
PEPERONI_TX_MEM_REQUEST, // We are WRITING DMX data
m_blockingControlWrite, // Block during frame send?
0, // Start at DMX address 0
(uchar*) universe.data(), // The DMX universe data
universe.size(), // Size of DMX universe
50); // Timeout (ms)
if (r < 0)
qWarning() << Q_FUNC_INFO << "Failed control transfer:" << r;
#if !defined(__APPLE__) && !defined(Q_OS_MAC)
}
else
{
/* Construct a bulk header first */
m_bulkBuffer[0] = char(PEPERONI_OLD_BULK_HEADER_ID);
m_bulkBuffer[1] = char(PEPERONI_OLD_BULK_HEADER_REQUEST_TX);
m_bulkBuffer[2] = char(universe.size() & 0xFF);
m_bulkBuffer[3] = char((universe.size() >> 8) & 0xFF);
/* Append universe data to the bulk buffer */
m_bulkBuffer.replace(PEPERONI_OLD_BULK_HEADER_SIZE,
universe.size(), universe);
/* Perform a bulk write */
int written = 0;
r = libusb_bulk_transfer(m_handle,
PEPERONI_BULK_OUT_ENDPOINT,
(uchar*) m_bulkBuffer.constData(),
m_bulkBuffer.size(),
&written,
50);
if (r < 0)
{
qWarning() << Q_FUNC_INFO << "Failed bulk write:" << r;
qWarning() << Q_FUNC_INFO << "Resetting bulk endpoint.";
r = libusb_clear_halt(m_handle, PEPERONI_BULK_OUT_ENDPOINT);
if (r < 0)
qWarning() << Q_FUNC_INFO << "Unable to reset bulk endpoint:" << r;
}
}
#endif
}
|
