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
|
#!/usr/bin/perl
# Copyright 2012 Bjørn Mork <bjorn@mork.no>
# License: GPLv2
use strict;
use warnings;
use Getopt::Long;
use Device::USB;
use Data::Dumper;
# defaults
my %opt = (
'debug' => 0,
);
GetOptions(\%opt,
'device=s',
'if=s',
'debug|d+',
'help|h|?',
);
&usage if ($opt{'help'} || !$opt{'device'});
my %sysname = (
0 => "QMI_CTL",
1 => "QMI_WDS",
2 => "QMI_DMS",
3 => "QMI_NAS",
4 => "QMI_QOS",
5 => "QMI_WMS",
6 => "QMI_PDS",
7 => "QMI_AUTH",
8 => "QMI_AT",
9 => "QMI_VOICE",
0xa => "QMI_CAT2",
0xb => "QMI UIM",
0xc => "QMI PBM",
0xe => "QMI RMTFS",
0x10 => "QMI_LOC",
0x11 => "QMI_SAR",
0x14 => "QMI_CSD",
0x15 => "QMI_EFS",
0x17 => "QMI_TS",
0x18 => "QMI_TMD",
0x1a => "QMI_WDA",
0x1e => "QMI_QCMAP",
0x24 => "QMI_PDC",
0xe0 => "QMI_CAT", # duplicate!
0xe1 => "QMI_RMS",
0xe2 => "QMI_OMA",
);
my $usb = Device::USB->new();
$usb->debug_mode($opt{'debug'});
my ($vid, $pid) = map { hex } split(/:/, $opt{'device'});
my $dev = $usb->find_device($vid, $pid);
die "Cannot find any such device: $opt{'device'} - $!\n" unless $dev;
warn "Device: ", sprintf("%04x:%04x", $dev->idVendor(), $dev->idProduct()), "\n";
$dev->open();
# get the number of configs
my @cfgs = @{$dev->config()};
# cycle trough all of them:
for my $cfg (@cfgs) {
my $cfgno = $cfg->bConfigurationValue;
warn "Configuration number $cfgno\n";
# unbind all drivers prior to set_configuration
for my $intf (@{$cfg->interfaces()}) {
for my $altf (@$intf) {
&unbind_driver($dev, $altf);
}
}
$dev->set_configuration($cfgno);
# cannot use ifnum as array idx as the numbering may not be consecutive...
my @intflist = grep { !$opt{'if'} || $_->[0]->bInterfaceNumber == $opt{'if'} } @{$cfg->interfaces()};
warn Dumper(\@intflist) if $opt{'debug'};
foreach (@intflist) {
my $intf = $_->[0];
# supported interfaces must have an interrupt endpoint and may have 2 bulk endpoints
if (($intf->bNumEndpoints == 3 || $intf->bNumEndpoints == 1) &&
($intf->endpoints->[0]->bmAttributes == 3)) { # USB_ENDPOINT_XFER_INT
warn "Candidate: ifnum=", $intf->bInterfaceNumber,"\n";
&do_qmi($dev, $intf);
} else {
warn "Unsupported endpoint configuration on ifnum=", $intf->bInterfaceNumber,"\n";
}
}
}
sub unbind_driver {
my ($dev, $intf) = @_;
my $ifnum = $intf->bInterfaceNumber;
my $driver = $dev->get_driver_np($ifnum);
if ($driver) {
warn "unbinding interface $ifnum from kernel driver \"$driver\"\n";
if ($dev->detach_kernel_driver_np($ifnum) < 0) {
warn "unbinding FAILED\n";
return undef;
}
}
return 1;
}
sub do_qmi {
my ($dev, $intf) = @_;
return unless &unbind_driver($dev, $intf);
my $ifnum = $intf->bInterfaceNumber;
my $ret = $dev->claim_interface($ifnum);
if ($ret < 0) {
warn "claim_interface failed ($ret): $!\n";
return;
}
# QMI_CTL_MESSAGE_GET_VERSION_INFO
my $qmi = pack("C*", map { hex } qw!01 0f 00 00 00 00 00 08 21 00 04 00 01 01 00 ff!);
&send_msg($dev, $ifnum, $qmi, length($qmi));
# may have to skip a few unsolicted messages
for (my $i = 0; $i < 10; $i++) {
my ($len, $msg) = &recv_msg($dev, $ifnum);
last if ($len < 0); # no need to repeat if complete failure
last if ($len && &is_ver($msg, $len));
# just give the device "enough time"...
sleep(.5);
}
$dev->release_interface($ifnum);
}
#map { warn "num: ", $_->bInterfaceNumber(), "eps: ", $_->nNumEndpoints(), "\n" } @{$cfg->interfaces()};
# test if msg is a reply to a QMI_CTL_MESSAGE_GET_VERSION_INFO and print details if it is
sub is_ver {
my ($msg, $len) = @_;
warn sprintf "%02x " x length($msg) . "\n", unpack("C*", $msg) if $opt{'debug'};
my $ret = {};
@$ret{'tf','len','ctrl','sys','cid','flags','tid','msgid','tlvlen'} = unpack("CvCCCCCvv", $msg);
# sanity check: tf is always one, sys must be QMI_CTL
return undef unless ($ret->{tf} == 1 && $ret->{sys} == 0);
# only interested in QMI_CTL_MESSAGE_GET_VERSION_INFO
return undef unless ($ret->{'msgid'} == 0x0021);
# add the tlv(s)
my $tlvlen = $ret->{'tlvlen'};
my $tlvs = substr($msg, 12);
while ($tlvlen > 0) {
my ($tlv, $len) = unpack("Cv", $tlvs);
$ret->{'tlvs'}{$tlv} = substr($tlvs, 3, $len);
$tlvlen -= $len + 3;
$tlvs = substr($tlvs, $len + 3);
}
# success only if TLV 0x02 is 0 and TLV 0x01 exists
return undef unless ((unpack("V", $ret->{'tlvs'}{0x02}) == 0) && exists($ret->{'tlvs'}{0x01}));
# decode the list of supported systems in TLV 0x01
my $data = $ret->{'tlvs'}{0x01};
my $n = unpack("C", $data);
$data = substr($data, 1);
print "supports $n QMI subsystems:\n";
for (my $i = 0; $i < $n; $i++) {
my ($sys, $maj, $min) = unpack("Cvv", $data);
my $system = $sysname{$sys} || sprintf("%#04x", $sys);
print " $system ($maj.$min)\n";
$data = substr($data, 5);
}
return 1;
}
# send CDC encapsulated message to interface
sub send_msg {
my ($dev, $ifnum, $msg, $len) = @_;
my $ret = $dev->control_msg(0x21, # USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE
0, # CDC SEND_ENCAPSULATED_COMMAND
0, # zero
$ifnum, # wIndex = interface
$msg,
$len,
1000); # timeout in ms
warn "control_msg() returned $ret\n" if $opt{'debug'};
if ($ret != $len) {
warn "control_msg() failed ($ret): $!\n";
}
return $ret;
}
# recv CDC encapsulated message to interface
sub recv_msg {
my ($dev, $ifnum) = @_;
my $buf = 0 x 512; # pre-allocate buffer - libusb is not perl!
my $ret = $dev->control_msg(0xa1, # USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE
1, # CDC GET_ENCAPSULATED_RESPONSE
0, # zero
$ifnum, # wIndex = interface
$buf,
512,
1000); # timeout in ms
warn "control_msg() returned $ret\n" if $opt{'debug'};
return ($ret, $buf);
}
sub usage {
warn <<EOT
Usage:
$0 [--debug] --device=idVendor:idProduct [--if=bInterfaceNumber]
Options:
--debug
debug output
--device
USB device ID to test - required
--if
USB interface number
Example:
$0 --device=1199:68a2
Note:
This script will unbind any driver from the interface(s)
before testing. It will not rebind after finishing. The
simplest way to reset is to unplug and replug the
device.
EOT
;
exit 0;
}
|