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
249
250
251
252
253
254
255
256
257
258
259
|
//
// Copyright 2010 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 "usrp1_iface.hpp"
#include "usrp_commands.h"
#include <uhd/exception.hpp>
#include <uhd/utils/byteswap.hpp>
#include <boost/format.hpp>
#include <stdexcept>
#include <iostream>
#include <iomanip>
using namespace uhd;
using namespace uhd::usrp;
using namespace uhd::transport;
static const bool iface_debug = false;
class usrp1_iface_impl : public usrp1_iface{
public:
/*******************************************************************
* Structors
******************************************************************/
usrp1_iface_impl(usrp_ctrl::sptr ctrl_transport)
{
_ctrl_transport = ctrl_transport;
mb_eeprom = mboard_eeprom_t(*this, mboard_eeprom_t::MAP_B000);
}
~usrp1_iface_impl(void)
{
/* NOP */
}
/*******************************************************************
* Peek and Poke
******************************************************************/
void poke32(boost::uint32_t addr, boost::uint32_t value)
{
boost::uint32_t swapped = uhd::htonx(value);
if (iface_debug) {
std::cout.fill('0');
std::cout << "poke32(";
std::cout << std::dec << std::setw(2) << addr << ", 0x";
std::cout << std::hex << std::setw(8) << value << ")" << std::endl;
}
boost::uint8_t w_index_h = SPI_ENABLE_FPGA & 0xff;
boost::uint8_t w_index_l = (SPI_FMT_MSB | SPI_FMT_HDR_1) & 0xff;
int ret =_ctrl_transport->usrp_control_write(
VRQ_SPI_WRITE,
addr & 0x7f,
(w_index_h << 8) | (w_index_l << 0),
(unsigned char*) &swapped,
sizeof(boost::uint32_t));
if (ret < 0) throw uhd::io_error("USRP1: failed control write");
}
boost::uint32_t peek32(boost::uint32_t addr)
{
boost::uint32_t value_out;
boost::uint8_t w_index_h = SPI_ENABLE_FPGA & 0xff;
boost::uint8_t w_index_l = (SPI_FMT_MSB | SPI_FMT_HDR_1) & 0xff;
int ret = _ctrl_transport->usrp_control_read(
VRQ_SPI_READ,
0x80 | (addr & 0x7f),
(w_index_h << 8) | (w_index_l << 0),
(unsigned char*) &value_out,
sizeof(boost::uint32_t));
if (ret < 0) throw uhd::io_error("USRP1: failed control read");
return uhd::ntohx(value_out);
}
void poke16(boost::uint32_t, boost::uint16_t) {
throw uhd::not_implemented_error("Unhandled command poke16()");
}
boost::uint16_t peek16(boost::uint32_t) {
throw uhd::not_implemented_error("Unhandled command peek16()");
return 0;
}
void write_uart(boost::uint8_t, const std::string &) {
throw uhd::not_implemented_error("Unhandled command write_uart()");
}
std::string read_uart(boost::uint8_t) {
throw uhd::not_implemented_error("Unhandled command read_uart()");
}
/*******************************************************************
* I2C
******************************************************************/
static const size_t max_i2c_data_bytes = 64;
//TODO: make this handle EEPROM page sizes. right now you can't write over a 16-byte boundary.
//to accomplish this you'll have to have addr offset as a separate parameter.
void write_i2c(boost::uint8_t addr, const byte_vector_t &bytes)
{
UHD_ASSERT_THROW(bytes.size() < max_i2c_data_bytes);
unsigned char buff[max_i2c_data_bytes];
std::copy(bytes.begin(), bytes.end(), buff);
int ret = _ctrl_transport->usrp_i2c_write(addr & 0xff,
buff,
bytes.size());
// TODO throw and catch i2c failures during eeprom read
if (iface_debug && (ret < 0))
std::cerr << "USRP: failed i2c write: " << ret << std::endl;
}
byte_vector_t read_i2c(boost::uint8_t addr, size_t num_bytes)
{
UHD_ASSERT_THROW(num_bytes < max_i2c_data_bytes);
unsigned char buff[max_i2c_data_bytes];
int ret = _ctrl_transport->usrp_i2c_read(addr & 0xff,
buff,
num_bytes);
// TODO throw and catch i2c failures during eeprom read
if (iface_debug && ((ret < 0) || (unsigned)ret < (num_bytes))) {
std::cerr << "USRP: failed i2c read: " << ret << std::endl;
return byte_vector_t(num_bytes, 0xff);
}
byte_vector_t out_bytes;
for (size_t i = 0; i < num_bytes; i++)
out_bytes.push_back(buff[i]);
return out_bytes;
}
/*******************************************************************
* SPI
*
* For non-readback transactions use the SPI_WRITE command, which is
* simpler and uses the USB control buffer for OUT data. No data
* needs to be returned.
*
* For readback transactions use SPI_TRANSACT, which places up to
* 4 bytes of OUT data in the device request fields and uses the
* control buffer for IN data.
******************************************************************/
boost::uint32_t transact_spi(int which_slave,
const spi_config_t &,
boost::uint32_t bits,
size_t num_bits,
bool readback)
{
UHD_ASSERT_THROW((num_bits <= 32) && !(num_bits % 8));
size_t num_bytes = num_bits / 8;
// Byteswap on num_bytes
unsigned char buff[4] = { 0 };
for (size_t i = 1; i <= num_bytes; i++)
buff[num_bytes - i] = (bits >> ((i - 1) * 8)) & 0xff;
if (readback) {
boost::uint8_t w_len_h = which_slave & 0xff;
boost::uint8_t w_len_l = num_bytes & 0xff;
int ret = _ctrl_transport->usrp_control_read(
VRQ_SPI_TRANSACT,
(buff[0] << 8) | (buff[1] << 0),
(buff[2] << 8) | (buff[3] << 0),
buff,
(w_len_h << 8) | (w_len_l << 0));
if (ret < 0) throw uhd::io_error("USRP1: failed SPI readback transaction");
boost::uint32_t val = (((boost::uint32_t)buff[0]) << 0) |
(((boost::uint32_t)buff[1]) << 8) |
(((boost::uint32_t)buff[2]) << 16) |
(((boost::uint32_t)buff[3]) << 24);
return val;
}
else {
boost::uint8_t w_index_h = which_slave & 0xff;
boost::uint8_t w_index_l = (SPI_FMT_MSB | SPI_FMT_HDR_0) & 0xff;
int ret =_ctrl_transport->usrp_control_write(
VRQ_SPI_WRITE,
0x00,
(w_index_h << 8) | (w_index_l << 0),
buff, num_bytes);
if (ret < 0) throw uhd::io_error("USRP1: failed SPI transaction");
return 0;
}
}
/*******************************************************************
* Firmware
*
* This call is deprecated.
******************************************************************/
void write_firmware_cmd(boost::uint8_t request,
boost::uint16_t value,
boost::uint16_t index,
unsigned char *buff,
boost::uint16_t length)
{
int ret;
if (request & 0x80) {
ret = _ctrl_transport->usrp_control_read(request,
value,
index,
buff,
length);
}
else {
ret = _ctrl_transport->usrp_control_write(request,
value,
index,
buff,
length);
}
if (ret < 0) throw uhd::io_error("USRP1: failed firmware command");
}
private:
usrp_ctrl::sptr _ctrl_transport;
};
/***********************************************************************
* Public Make Function
**********************************************************************/
usrp1_iface::sptr usrp1_iface::make(usrp_ctrl::sptr ctrl_transport)
{
return sptr(new usrp1_iface_impl(ctrl_transport));
}
|
