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
|
//
// Copyright 2010-2011 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/>.
//
#include "usrp_e100_impl.hpp"
#include "usrp_e100_regs.hpp"
#include <uhd/utils/msg.hpp>
#include <uhd/usrp/device_props.hpp>
#include <uhd/usrp/mboard_props.hpp>
#include <uhd/exception.hpp>
#include <uhd/utils/static.hpp>
#include <uhd/utils/images.hpp>
#include <boost/format.hpp>
#include <boost/filesystem.hpp>
#include <boost/functional/hash.hpp>
#include <fstream>
using namespace uhd;
using namespace uhd::usrp;
namespace fs = boost::filesystem;
/***********************************************************************
* Discovery
**********************************************************************/
static device_addrs_t usrp_e100_find(const device_addr_t &hint){
device_addrs_t usrp_e100_addrs;
//return an empty list of addresses when type is set to non-usrp-e
if (hint.has_key("type") and hint["type"] != "usrp-e") return usrp_e100_addrs;
//device node not provided, assume its 0
if (not hint.has_key("node")){
device_addr_t new_addr = hint;
new_addr["node"] = "/dev/usrp_e0";
return usrp_e100_find(new_addr);
}
//use the given device node name
if (fs::exists(hint["node"])){
device_addr_t new_addr;
new_addr["type"] = "usrp-e";
new_addr["node"] = fs::system_complete(fs::path(hint["node"])).string();
try{
usrp_e100_iface::sptr iface = usrp_e100_iface::make(new_addr["node"]);
new_addr["name"] = iface->mb_eeprom["name"];
new_addr["serial"] = iface->mb_eeprom["serial"];
}
catch(const std::exception &e){
new_addr["name"] = "";
new_addr["serial"] = "";
}
if (
(not hint.has_key("name") or hint["name"] == new_addr["name"]) and
(not hint.has_key("serial") or hint["serial"] == new_addr["serial"])
){
usrp_e100_addrs.push_back(new_addr);
}
}
return usrp_e100_addrs;
}
/***********************************************************************
* Make
**********************************************************************/
static size_t hash_fpga_file(const std::string &file_path){
size_t hash = 0;
std::ifstream file(file_path.c_str());
if (not file.good()) throw uhd::io_error("cannot open fpga file for read: " + file_path);
while (file.good()) boost::hash_combine(hash, file.get());
file.close();
return hash;
}
static device::sptr usrp_e100_make(const device_addr_t &device_addr){
//setup the main interface into fpga
std::string node = device_addr["node"];
UHD_MSG(status) << boost::format("Opening USRP-E on %s") % node << std::endl;
usrp_e100_iface::sptr iface = usrp_e100_iface::make(node);
//extract the fpga path for usrp-e
std::string usrp_e100_fpga_image = find_image_path(device_addr.get("fpga", "usrp_e100_fpga_m2.bin"));
//compute a hash of the fpga file
const boost::uint32_t file_hash = boost::uint32_t(hash_fpga_file(usrp_e100_fpga_image));
//When the hash does not match:
// - unload the iface to free the node
// - load the fpga configuration file
// - re-open the iface on the node
if (iface->peek32(UE_REG_RB_MISC_TEST32) != file_hash){
iface.reset();
usrp_e100_load_fpga(usrp_e100_fpga_image);
UHD_MSG(status) << boost::format("re-Opening USRP-E on %s") % node << std::endl;
iface = usrp_e100_iface::make(node);
}
//Perform wishbone readback tests:
//If the tests fail, try to re-initialize the clock.
//If the tests fail again, we just continue...
for (size_t phase = 0; phase <= 1; phase++){
bool test_fail = false;
UHD_MSG(status) << "Performing wishbone readback test... " << std::flush;
for (size_t i = 0; i < 100; i++){
iface->poke32(UE_REG_SR_MISC_TEST32, file_hash);
test_fail = iface->peek32(UE_REG_RB_MISC_TEST32) != file_hash;
if (test_fail) break; //exit loop on any failure
}
UHD_MSG(status) << ((test_fail)? " fail" : "pass") << std::endl;
if (not test_fail) break; //no more tests, its good
switch (phase){
case 0:
UHD_MSG(warning) << boost::format(
"The FPGA may be clocked improperly.\n"
"Attempting to re-initialize the clock...\n"
);
usrp_e100_clock_ctrl::make(iface, 64e6);
break;
case 1:
UHD_MSG(error) << boost::format(
"The FPGA is either clocked improperly\n"
"or the FPGA build is not compatible.\n"
);
break;
}
}
//check that the compatibility is correct
const boost::uint16_t fpga_compat_num = iface->peek16(UE_REG_MISC_COMPAT);
if (fpga_compat_num != USRP_E_FPGA_COMPAT_NUM){
throw uhd::runtime_error(str(boost::format(
"\nPlease update the FPGA image for your device.\n"
"See the application notes for USRP E-Series for instructions.\n"
"Expected FPGA compatibility number 0x%x, but got 0x%x:\n"
"The FPGA build is not compatible with the host code build."
) % USRP_E_FPGA_COMPAT_NUM % fpga_compat_num));
}
return device::sptr(new usrp_e100_impl(iface, device_addr));
}
UHD_STATIC_BLOCK(register_usrp_e100_device){
device::register_device(&usrp_e100_find, &usrp_e100_make);
}
/***********************************************************************
* Structors
**********************************************************************/
usrp_e100_impl::usrp_e100_impl(
usrp_e100_iface::sptr iface,
const device_addr_t &device_addr
):
_iface(iface),
_data_xport(usrp_e100_make_mmap_zero_copy(_iface)),
_recv_frame_size(std::min(_data_xport->get_recv_frame_size(), size_t(device_addr.cast<double>("recv_frame_size", 1e9)))),
_send_frame_size(std::min(_data_xport->get_send_frame_size(), size_t(device_addr.cast<double>("send_frame_size", 1e9))))
{
//setup interfaces into hardware
const double master_clock_rate = device_addr.cast<double>("master_clock_rate", 64e6);
_clock_ctrl = usrp_e100_clock_ctrl::make(_iface, master_clock_rate);
_codec_ctrl = usrp_e100_codec_ctrl::make(_iface);
//initialize the mboard
mboard_init();
//initialize the dboards
dboard_init();
//initialize the dsps
rx_ddc_init();
tx_duc_init();
//init the codec properties
codec_init();
//init the io send/recv
io_init();
//set default subdev specs
this->mboard_set(MBOARD_PROP_RX_SUBDEV_SPEC, subdev_spec_t());
this->mboard_set(MBOARD_PROP_TX_SUBDEV_SPEC, subdev_spec_t());
}
usrp_e100_impl::~usrp_e100_impl(void){
/* NOP */
}
/***********************************************************************
* Device Get
**********************************************************************/
void usrp_e100_impl::get(const wax::obj &key_, wax::obj &val){
named_prop_t key = named_prop_t::extract(key_);
//handle the get request conditioned on the key
switch(key.as<device_prop_t>()){
case DEVICE_PROP_NAME:
val = std::string("usrp-e device");
return;
case DEVICE_PROP_MBOARD:
UHD_ASSERT_THROW(key.name == "");
val = _mboard_proxy->get_link();
return;
case DEVICE_PROP_MBOARD_NAMES:
val = prop_names_t(1, ""); //vector of size 1 with empty string
return;
default: UHD_THROW_PROP_GET_ERROR();
}
}
/***********************************************************************
* Device Set
**********************************************************************/
void usrp_e100_impl::set(const wax::obj &, const wax::obj &){
UHD_THROW_PROP_SET_ERROR();
}
|
