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
|
//
// Copyright 2013-2014 Ettus Research LLC
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
#ifdef E300_NATIVE
#include <cstdio>
#include <cstdlib>
#include <string>
#include <fcntl.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <libudev.h>
#include <boost/format.hpp>
#include <boost/lexical_cast.hpp>
#include <uhd/utils/msg.hpp>
#include <uhd/exception.hpp>
static const std::string E300_AXI_FPGA_SYSFS = "40000000.axi-fpga";
static const std::string E300_XDEV_SYSFS = "f8007000.ps7-dev-cfg";
std::string e300_get_sysfs_attr(const std::string &node, const std::string &attr)
{
udev *udev;
udev_enumerate *enumerate;
udev_list_entry *devices, *dev_list_entry;
udev_device *dev;
std::string retstring;
udev = udev_new();
if (!udev) {
throw uhd::lookup_error("Failed to get udev handle.");
}
enumerate = udev_enumerate_new(udev);
udev_enumerate_add_match_sysname(enumerate, node.c_str());
udev_enumerate_scan_devices(enumerate);
devices = udev_enumerate_get_list_entry(enumerate);
udev_list_entry_foreach(dev_list_entry, devices)
{
const char *path;
path = udev_list_entry_get_name(dev_list_entry);
dev = udev_device_new_from_syspath(udev, path);
retstring = udev_device_get_sysattr_value(dev, attr.c_str());
if (retstring.size())
break;
udev_device_unref(dev);
}
udev_enumerate_unref(enumerate);
udev_unref(udev);
return retstring;
}
static bool e300_fpga_loaded_successfully(void)
{
return boost::lexical_cast<bool>(e300_get_sysfs_attr(E300_XDEV_SYSFS, "prog_done"));
}
#include "e300_fifo_config.hpp"
#include <uhd/exception.hpp>
e300_fifo_config_t e300_read_sysfs(void)
{
if (not e300_fpga_loaded_successfully())
{
throw uhd::runtime_error("E300 FPGA load failed!");
}
e300_fifo_config_t config;
config.buff_length = boost::lexical_cast<unsigned long>(
e300_get_sysfs_attr(E300_AXI_FPGA_SYSFS, "buffer_length"));
config.ctrl_length = boost::lexical_cast<unsigned long>(
e300_get_sysfs_attr(E300_AXI_FPGA_SYSFS, "control_length"));
config.phys_addr = boost::lexical_cast<unsigned long>(
e300_get_sysfs_attr(E300_AXI_FPGA_SYSFS, "phys_addr"));
return config;
}
#else //E300_NATIVE
#include "e300_fifo_config.hpp"
#include <uhd/exception.hpp>
e300_fifo_config_t e300_read_sysfs(void)
{
throw uhd::assertion_error("e300_read_sysfs() !E300_NATIVE");
}
std::string e300_get_sysfs_attr(const std::string &, const std::string &)
{
throw uhd::assertion_error("e300_sysfs_attr() !E300_NATIVE");
}
#endif //E300_NATIVE
|
