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ce0473f5
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Dimitri Stolnikov
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/*
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* Copyright (C) 2012 by Dimitri Stolnikov <horiz0n@gmx.net>
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* Copyright (C) 2012 by Steve Markgraf <steve@steve-m.de>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <errno.h>
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#include <signal.h>
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <math.h>
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#ifndef _WIN32
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#include <unistd.h>
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#define min(a, b) (((a) < (b)) ? (a) : (b))
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#endif
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29 |
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30 |
ba4fd966
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Dimitri Stolnikov
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//cross platform usleep()
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31 |
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#ifdef _MSC_VER
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#include <windows.h>
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#define usleep(t) Sleep((t)/1000)
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#else
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#include <unistd.h>
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#endif
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37 |
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38 |
ce0473f5
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Dimitri Stolnikov
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#include <libusb.h>
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/*
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* All libusb callback functions should be marked with the LIBUSB_CALL macro
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* to ensure that they are compiled with the same calling convention as libusb.
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*
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* If the macro isn't available in older libusb versions, we simply define it.
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*/
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#ifndef LIBUSB_CALL
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#define LIBUSB_CALL
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48 |
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#endif
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49 |
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50 |
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#include "osmosdr.h"
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51 |
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52 |
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typedef struct osmosdr_tuner {
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53 |
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/* tuner interface */
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54 |
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int (*init)(void *);
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55 |
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int (*exit)(void *);
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56 |
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int (*set_freq)(void *, uint32_t freq /* Hz */);
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57 |
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int (*set_bw)(void *, int bw /* Hz */);
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58 |
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int (*set_gain)(void *, int gain /* dB */);
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int (*set_gain_mode)(void *, int manual);
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} osmosdr_tuner_t;
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61 |
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enum osmosdr_async_status {
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OSMOSDR_INACTIVE = 0,
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OSMOSDR_CANCELING,
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OSMOSDR_RUNNING
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};
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struct osmosdr_dev {
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libusb_context *ctx;
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struct libusb_device_handle *devh;
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uint32_t xfer_buf_num;
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uint32_t xfer_buf_len;
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struct libusb_transfer **xfer;
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unsigned char **xfer_buf;
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osmosdr_read_async_cb_t cb;
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void *cb_ctx;
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enum osmosdr_async_status async_status;
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/* adc context */
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uint32_t rate; /* Hz */
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uint32_t adc_clock; /* Hz */
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/* tuner context */
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osmosdr_tuner_t *tuner;
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uint32_t freq; /* Hz */
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int gain; /* dB */
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};
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typedef struct osmosdr_dongle {
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uint16_t vid;
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uint16_t pid;
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const char *name;
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} osmosdr_dongle_t;
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static osmosdr_dongle_t known_devices[] = {
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94 |
7d90bb80
|
Dimitri Stolnikov
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{ 0x16c0, 0x0763, "sysmocom OsmoSDR" },
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/* here come future modifications of the OsmoSDR */
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ce0473f5
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Dimitri Stolnikov
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};
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#define DEFAULT_BUF_NUMBER 32
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#define DEFAULT_BUF_LENGTH (16 * 32 * 512)
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101 |
a630fc08
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Dimitri Stolnikov
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#define DEF_ADC_FREQ 4000000
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102 |
ce0473f5
|
Dimitri Stolnikov
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103 |
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#define CTRL_IN (LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_ENDPOINT_IN)
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#define CTRL_OUT (LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_ENDPOINT_OUT)
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105 |
bcc45534
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Dimitri Stolnikov
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#define FUNC(group, function) ((group << 8) | function)
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ce0473f5
|
Dimitri Stolnikov
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#define CTRL_TIMEOUT 300
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#define BULK_TIMEOUT 0
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109 |
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110 |
bcc45534
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Dimitri Stolnikov
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int e4k_init(void *dev) {
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osmosdr_dev_t* devt = (osmosdr_dev_t*)dev;
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112 |
9e2a7e19
|
Dimitri Stolnikov
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int res;
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res = libusb_control_transfer(devt->devh, CTRL_OUT, 0x07,
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FUNC(3, 0), 0,
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NULL, 0, CTRL_TIMEOUT);
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return res; /* 0 is success since we do not send any buffers out */
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119 |
bcc45534
|
Dimitri Stolnikov
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}
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int e4k_exit(void *dev) { return 0; }
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int e4k_set_freq(void *dev, uint32_t freq) {
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osmosdr_dev_t* devt = (osmosdr_dev_t*)dev;
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uint8_t buffer[4];
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126 |
4eed4e78
|
Christian Daniel
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int res;
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127 |
bcc45534
|
Dimitri Stolnikov
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128 |
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buffer[0] = (uint8_t)(freq >> 24);
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buffer[1] = (uint8_t)(freq >> 16);
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buffer[2] = (uint8_t)(freq >> 8);
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buffer[3] = (uint8_t)(freq >> 0);
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133 |
4eed4e78
|
Christian Daniel
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res = libusb_control_transfer(devt->devh, CTRL_OUT, 0x07,
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134 |
9e2a7e19
|
Dimitri Stolnikov
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FUNC(3, 5), 0,
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buffer, sizeof(buffer), CTRL_TIMEOUT);
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136 |
4eed4e78
|
Christian Daniel
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137 |
9e2a7e19
|
Dimitri Stolnikov
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if (res == sizeof(buffer)) {
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138 |
4eed4e78
|
Christian Daniel
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res = libusb_control_transfer(devt->devh, CTRL_OUT, 0x07,
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139 |
9e2a7e19
|
Dimitri Stolnikov
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FUNC(3, 9), 0,
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NULL, 0, CTRL_TIMEOUT);
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141 |
4eed4e78
|
Christian Daniel
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}
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142 |
9e2a7e19
|
Dimitri Stolnikov
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143 |
4eed4e78
|
Christian Daniel
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return res;
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144 |
bcc45534
|
Dimitri Stolnikov
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}
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145 |
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146 |
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int e4k_set_bw(void *dev, int bw) { return 0; }
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int e4k_set_lna_gain(void *dev, int32_t gain) {
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osmosdr_dev_t* devt = (osmosdr_dev_t*)dev;
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uint8_t buffer[4];
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151 |
9e2a7e19
|
Dimitri Stolnikov
|
int res;
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152 |
bcc45534
|
Dimitri Stolnikov
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153 |
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buffer[0] = (uint8_t)(gain >> 24);
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buffer[1] = (uint8_t)(gain >> 16);
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buffer[2] = (uint8_t)(gain >> 8);
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buffer[3] = (uint8_t)(gain >> 0);
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158 |
9e2a7e19
|
Dimitri Stolnikov
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res = libusb_control_transfer(devt->devh, CTRL_OUT, 0x07,
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FUNC(3, 0x0b), 0,
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buffer, sizeof(buffer), CTRL_TIMEOUT);
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if (res == sizeof(buffer))
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res = 0;
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return res;
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166 |
bcc45534
|
Dimitri Stolnikov
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}
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int e4k_mixer_gain_set(void *dev, int8_t gain) {
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osmosdr_dev_t* devt = (osmosdr_dev_t*)dev;
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uint8_t buffer[1];
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171 |
9e2a7e19
|
Dimitri Stolnikov
|
int res;
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172 |
bcc45534
|
Dimitri Stolnikov
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buffer[0] = gain;
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175 |
9e2a7e19
|
Dimitri Stolnikov
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res = libusb_control_transfer(devt->devh, CTRL_OUT, 0x07,
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FUNC(3, 0x03), 0,
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buffer, sizeof(buffer), CTRL_TIMEOUT);
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if (res == sizeof(buffer))
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res = 0;
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return res;
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183 |
bcc45534
|
Dimitri Stolnikov
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}
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int e4k_set_enh_gain(void *dev, int32_t gain) {
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osmosdr_dev_t* devt = (osmosdr_dev_t*)dev;
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uint8_t buffer[4];
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188 |
9e2a7e19
|
Dimitri Stolnikov
|
int res;
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189 |
bcc45534
|
Dimitri Stolnikov
|
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190 |
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buffer[0] = (uint8_t)(gain >> 24);
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buffer[1] = (uint8_t)(gain >> 16);
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buffer[2] = (uint8_t)(gain >> 8);
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buffer[3] = (uint8_t)(gain >> 0);
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194 |
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195 |
9e2a7e19
|
Dimitri Stolnikov
|
res = libusb_control_transfer(devt->devh, CTRL_OUT, 0x07,
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FUNC(3, 0x0d), 0,
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buffer, sizeof(buffer), CTRL_TIMEOUT);
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199 |
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if (res == sizeof(buffer))
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res = 0;
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202 |
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return res;
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203 |
bcc45534
|
Dimitri Stolnikov
|
}
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204 |
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205 |
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int e4k_set_gain(void *dev, int gain) {
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int8_t mixgain = (gain > 340) ? 12 : 4;
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207 |
14f7dd44
|
Dimitri Stolnikov
|
#if 0
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208 |
bcc45534
|
Dimitri Stolnikov
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int enhgain = (gain - 420);
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209 |
14f7dd44
|
Dimitri Stolnikov
|
#endif
|
210 |
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if(e4k_set_lna_gain(dev, min(300, gain - mixgain * 10)))
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211 |
bcc45534
|
Dimitri Stolnikov
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return -1;
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212 |
9e2a7e19
|
Dimitri Stolnikov
|
if(e4k_mixer_gain_set(dev, mixgain))
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213 |
bcc45534
|
Dimitri Stolnikov
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return -1;
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214 |
14f7dd44
|
Dimitri Stolnikov
|
#if 0 /* enhanced mixer gain seems to have no effect */
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215 |
bcc45534
|
Dimitri Stolnikov
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if(enhgain >= 0)
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216 |
9e2a7e19
|
Dimitri Stolnikov
|
if(e4k_set_enh_gain(dev, enhgain))
|
217 |
bcc45534
|
Dimitri Stolnikov
|
return -1;
|
218 |
14f7dd44
|
Dimitri Stolnikov
|
#endif
|
219 |
bcc45534
|
Dimitri Stolnikov
|
return 0;
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220 |
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}
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221 |
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222 |
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int e4k_set_gain_mode(void *dev, int manual) {
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223 |
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osmosdr_dev_t* devt = (osmosdr_dev_t*)dev;
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224 |
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uint8_t buffer[1];
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225 |
9e2a7e19
|
Dimitri Stolnikov
|
int res;
|
226 |
bcc45534
|
Dimitri Stolnikov
|
|
227 |
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buffer[0] = (uint8_t)manual;
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228 |
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229 |
9e2a7e19
|
Dimitri Stolnikov
|
res = libusb_control_transfer(devt->devh, CTRL_OUT, 0x07,
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230 |
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FUNC(3, 0x0c), 0,
|
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buffer, sizeof(buffer), CTRL_TIMEOUT);
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233 |
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if (res == sizeof(buffer))
|
234 |
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res = 0;
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235 |
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|
236 |
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return res;
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237 |
bcc45534
|
Dimitri Stolnikov
|
}
|
238 |
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|
239 |
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static osmosdr_tuner_t tuner = {
|
240 |
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e4k_init, e4k_exit,
|
241 |
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e4k_set_freq,
|
242 |
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e4k_set_bw, e4k_set_gain, e4k_set_gain_mode
|
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};
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244 |
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245 |
7d90bb80
|
Dimitri Stolnikov
|
int osmosdr_get_usb_strings(osmosdr_dev_t *dev, char *manufact, char *product,
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246 |
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char *serial)
|
247 |
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{
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248 |
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struct libusb_device_descriptor dd;
|
249 |
|
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libusb_device *device = NULL;
|
250 |
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const int buf_max = 256;
|
251 |
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int r = 0;
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252 |
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|
253 |
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if (!dev || !dev->devh)
|
254 |
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return -1;
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255 |
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256 |
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device = libusb_get_device(dev->devh);
|
257 |
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258 |
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r = libusb_get_device_descriptor(device, &dd);
|
259 |
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if (r < 0)
|
260 |
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return -1;
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261 |
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|
262 |
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if (manufact) {
|
263 |
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memset(manufact, 0, buf_max);
|
264 |
|
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libusb_get_string_descriptor_ascii(dev->devh, dd.iManufacturer,
|
265 |
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(unsigned char *)manufact,
|
266 |
|
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buf_max);
|
267 |
|
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}
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268 |
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|
269 |
|
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if (product) {
|
270 |
|
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memset(product, 0, buf_max);
|
271 |
|
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libusb_get_string_descriptor_ascii(dev->devh, dd.iProduct,
|
272 |
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(unsigned char *)product,
|
273 |
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buf_max);
|
274 |
|
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}
|
275 |
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|
276 |
|
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if (serial) {
|
277 |
|
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memset(serial, 0, buf_max);
|
278 |
|
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libusb_get_string_descriptor_ascii(dev->devh, dd.iSerialNumber,
|
279 |
|
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(unsigned char *)serial,
|
280 |
|
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buf_max);
|
281 |
|
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}
|
282 |
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|
283 |
|
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return 0;
|
284 |
|
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}
|
285 |
|
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|
286 |
ce0473f5
|
Dimitri Stolnikov
|
int osmosdr_set_center_freq(osmosdr_dev_t *dev, uint32_t freq)
|
287 |
|
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{
|
288 |
9e2a7e19
|
Dimitri Stolnikov
|
int r = -2;
|
289 |
ce0473f5
|
Dimitri Stolnikov
|
|
290 |
|
|
if (!dev || !dev->tuner)
|
291 |
|
|
return -1;
|
292 |
|
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|
293 |
a630fc08
|
Dimitri Stolnikov
|
if (dev->tuner->set_freq)
|
294 |
bcc45534
|
Dimitri Stolnikov
|
r = dev->tuner->set_freq(dev, freq);
|
295 |
ce0473f5
|
Dimitri Stolnikov
|
|
296 |
|
|
if (!r)
|
297 |
|
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dev->freq = freq;
|
298 |
|
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else
|
299 |
|
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dev->freq = 0;
|
300 |
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|
301 |
|
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return r;
|
302 |
|
|
}
|
303 |
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|
304 |
|
|
uint32_t osmosdr_get_center_freq(osmosdr_dev_t *dev)
|
305 |
|
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{
|
306 |
|
|
if (!dev || !dev->tuner)
|
307 |
|
|
return 0;
|
308 |
|
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|
309 |
|
|
return dev->freq;
|
310 |
|
|
}
|
311 |
|
|
|
312 |
292a9868
|
Dimitri Stolnikov
|
int osmosdr_get_tuner_gains(osmosdr_dev_t *dev, int *gains)
|
313 |
|
|
{
|
314 |
14f7dd44
|
Dimitri Stolnikov
|
/* all gain values are expressed in tenths of a dB */
|
315 |
292a9868
|
Dimitri Stolnikov
|
const int e4k_gains[] = { -10, 15, 40, 65, 90, 115, 140, 165, 190, 215,
|
316 |
14f7dd44
|
Dimitri Stolnikov
|
240, 290, 340, 420 };
|
317 |
292a9868
|
Dimitri Stolnikov
|
int len = sizeof(e4k_gains);
|
318 |
|
|
|
319 |
|
|
if (!dev)
|
320 |
|
|
return -1;
|
321 |
|
|
|
322 |
|
|
if (!gains) { /* no buffer provided, just return the count */
|
323 |
|
|
return len / sizeof(int);
|
324 |
|
|
} else {
|
325 |
|
|
if (len)
|
326 |
|
|
memcpy(gains, e4k_gains, len);
|
327 |
|
|
|
328 |
|
|
return len / sizeof(int);
|
329 |
|
|
}
|
330 |
|
|
}
|
331 |
|
|
|
332 |
ce0473f5
|
Dimitri Stolnikov
|
int osmosdr_set_tuner_gain(osmosdr_dev_t *dev, int gain)
|
333 |
|
|
{
|
334 |
9e2a7e19
|
Dimitri Stolnikov
|
int r = -2;
|
335 |
ce0473f5
|
Dimitri Stolnikov
|
|
336 |
|
|
if (!dev || !dev->tuner)
|
337 |
|
|
return -1;
|
338 |
|
|
|
339 |
a630fc08
|
Dimitri Stolnikov
|
if (dev->tuner->set_gain)
|
340 |
bcc45534
|
Dimitri Stolnikov
|
r = dev->tuner->set_gain((void *)dev, gain);
|
341 |
ce0473f5
|
Dimitri Stolnikov
|
|
342 |
|
|
if (!r)
|
343 |
|
|
dev->gain = gain;
|
344 |
|
|
else
|
345 |
|
|
dev->gain = 0;
|
346 |
|
|
|
347 |
|
|
return r;
|
348 |
|
|
}
|
349 |
|
|
|
350 |
|
|
int osmosdr_get_tuner_gain(osmosdr_dev_t *dev)
|
351 |
|
|
{
|
352 |
|
|
if (!dev || !dev->tuner)
|
353 |
|
|
return 0;
|
354 |
|
|
|
355 |
|
|
return dev->gain;
|
356 |
|
|
}
|
357 |
|
|
|
358 |
|
|
int osmosdr_set_tuner_gain_mode(osmosdr_dev_t *dev, int mode)
|
359 |
|
|
{
|
360 |
9e2a7e19
|
Dimitri Stolnikov
|
int r = -2;
|
361 |
ce0473f5
|
Dimitri Stolnikov
|
|
362 |
|
|
if (!dev || !dev->tuner)
|
363 |
|
|
return -1;
|
364 |
|
|
|
365 |
a630fc08
|
Dimitri Stolnikov
|
if (dev->tuner->set_gain_mode)
|
366 |
bcc45534
|
Dimitri Stolnikov
|
r = dev->tuner->set_gain_mode((void *)dev, mode);
|
367 |
ce0473f5
|
Dimitri Stolnikov
|
|
368 |
|
|
return r;
|
369 |
|
|
}
|
370 |
|
|
|
371 |
4eed4e78
|
Christian Daniel
|
int osmosdr_set_tuner_lna_gain(osmosdr_dev_t *dev, int gain)
|
372 |
|
|
{
|
373 |
|
|
osmosdr_dev_t* devt = (osmosdr_dev_t*)dev;
|
374 |
|
|
uint8_t buffer[4];
|
375 |
|
|
|
376 |
|
|
buffer[0] = (gain >> 24);
|
377 |
|
|
buffer[1] = (gain >> 16);
|
378 |
|
|
buffer[2] = (gain >> 8);
|
379 |
|
|
buffer[3] = (gain >> 0);
|
380 |
|
|
|
381 |
|
|
return libusb_control_transfer(devt->devh, CTRL_OUT, 0x07,
|
382 |
|
|
FUNC(3, 0x0b), 0,
|
383 |
9e2a7e19
|
Dimitri Stolnikov
|
buffer, sizeof(buffer), CTRL_TIMEOUT);
|
384 |
4eed4e78
|
Christian Daniel
|
}
|
385 |
|
|
|
386 |
|
|
int osmosdr_set_tuner_mixer_gain(osmosdr_dev_t *dev, int gain)
|
387 |
|
|
{
|
388 |
|
|
osmosdr_dev_t* devt = (osmosdr_dev_t*)dev;
|
389 |
|
|
uint8_t buffer[1];
|
390 |
|
|
|
391 |
|
|
buffer[0] = gain / 10;
|
392 |
|
|
|
393 |
|
|
return libusb_control_transfer(devt->devh, CTRL_OUT, 0x07,
|
394 |
|
|
FUNC(3, 0x03), 0,
|
395 |
9e2a7e19
|
Dimitri Stolnikov
|
buffer, sizeof(buffer), CTRL_TIMEOUT);
|
396 |
4eed4e78
|
Christian Daniel
|
}
|
397 |
|
|
|
398 |
|
|
int osmosdr_set_tuner_mixer_enh(osmosdr_dev_t *dev, int enh)
|
399 |
|
|
{
|
400 |
|
|
osmosdr_dev_t* devt = (osmosdr_dev_t*)dev;
|
401 |
|
|
uint8_t buffer[4];
|
402 |
|
|
|
403 |
|
|
buffer[0] = (enh >> 24);
|
404 |
|
|
buffer[1] = (enh >> 16);
|
405 |
|
|
buffer[2] = (enh >> 8);
|
406 |
|
|
buffer[3] = (enh >> 0);
|
407 |
|
|
|
408 |
|
|
return libusb_control_transfer(devt->devh, CTRL_OUT, 0x07,
|
409 |
|
|
FUNC(3, 0x0d), 0,
|
410 |
9e2a7e19
|
Dimitri Stolnikov
|
buffer, sizeof(buffer), CTRL_TIMEOUT);
|
411 |
4eed4e78
|
Christian Daniel
|
}
|
412 |
|
|
|
413 |
|
|
int osmosdr_set_tuner_if_gain(osmosdr_dev_t *dev, int stage, int gain)
|
414 |
|
|
{
|
415 |
|
|
osmosdr_dev_t* devt = (osmosdr_dev_t*)dev;
|
416 |
|
|
uint8_t buffer[5];
|
417 |
|
|
|
418 |
|
|
buffer[0] = stage;
|
419 |
|
|
gain /= 10;
|
420 |
|
|
buffer[1] = (gain >> 24);
|
421 |
|
|
buffer[2] = (gain >> 16);
|
422 |
|
|
buffer[3] = (gain >> 8);
|
423 |
|
|
buffer[4] = (gain >> 0);
|
424 |
|
|
|
425 |
|
|
return libusb_control_transfer(devt->devh, CTRL_OUT, 0x07,
|
426 |
|
|
FUNC(3, 0x02), 0,
|
427 |
9e2a7e19
|
Dimitri Stolnikov
|
buffer, sizeof(buffer), CTRL_TIMEOUT);
|
428 |
4eed4e78
|
Christian Daniel
|
}
|
429 |
|
|
|
430 |
a630fc08
|
Dimitri Stolnikov
|
/* two raised to the power of n */
|
431 |
|
|
#define TWO_POW(n) (1ULL<<(n))
|
432 |
|
|
|
433 |
|
|
uint32_t osmosdr_get_sample_rates(osmosdr_dev_t *dev, uint32_t *rates)
|
434 |
|
|
{
|
435 |
|
|
int n;
|
436 |
|
|
|
437 |
|
|
if (!dev)
|
438 |
|
|
return -1;
|
439 |
|
|
|
440 |
|
|
if (!rates) { /* no buffer provided, just return the count */
|
441 |
|
|
return 5;
|
442 |
|
|
} else {
|
443 |
|
|
for (n = 6; n > 1; n--) /* 64 to 4 */
|
444 |
|
|
*(rates++) = dev->adc_clock / TWO_POW(n);
|
445 |
|
|
|
446 |
|
|
return 5;
|
447 |
|
|
}
|
448 |
|
|
|
449 |
|
|
return 0;
|
450 |
|
|
}
|
451 |
|
|
|
452 |
ce0473f5
|
Dimitri Stolnikov
|
int osmosdr_set_sample_rate(osmosdr_dev_t *dev, uint32_t samp_rate)
|
453 |
|
|
{
|
454 |
a630fc08
|
Dimitri Stolnikov
|
int n, decim = 3;
|
455 |
|
|
int r = 0;
|
456 |
|
|
unsigned int req_decim = 0;
|
457 |
ce0473f5
|
Dimitri Stolnikov
|
|
458 |
|
|
if (!dev)
|
459 |
|
|
return -1;
|
460 |
|
|
|
461 |
a630fc08
|
Dimitri Stolnikov
|
/* TODO: implement arbitrary rates by steering the master clock */
|
462 |
|
|
|
463 |
|
|
req_decim = dev->adc_clock / samp_rate;
|
464 |
ce0473f5
|
Dimitri Stolnikov
|
|
465 |
a630fc08
|
Dimitri Stolnikov
|
for (n = 2; n <= 6; n++) { /* 4 to 64 */
|
466 |
|
|
if (TWO_POW(n) == req_decim) {
|
467 |
|
|
decim = n;
|
468 |
|
|
break;
|
469 |
|
|
}
|
470 |
ce0473f5
|
Dimitri Stolnikov
|
}
|
471 |
|
|
|
472 |
a630fc08
|
Dimitri Stolnikov
|
samp_rate = dev->adc_clock / TWO_POW(decim);
|
473 |
|
|
|
474 |
|
|
r = osmosdr_set_fpga_decimation(dev, decim);
|
475 |
9e2a7e19
|
Dimitri Stolnikov
|
if (r >= 0) {
|
476 |
a630fc08
|
Dimitri Stolnikov
|
if (dev->tuner && dev->tuner->set_bw)
|
477 |
|
|
dev->tuner->set_bw(dev, samp_rate);
|
478 |
|
|
|
479 |
ce0473f5
|
Dimitri Stolnikov
|
dev->rate = samp_rate;
|
480 |
a630fc08
|
Dimitri Stolnikov
|
} else {
|
481 |
ce0473f5
|
Dimitri Stolnikov
|
dev->rate = 0;
|
482 |
a630fc08
|
Dimitri Stolnikov
|
}
|
483 |
ce0473f5
|
Dimitri Stolnikov
|
|
484 |
a630fc08
|
Dimitri Stolnikov
|
return r;
|
485 |
ce0473f5
|
Dimitri Stolnikov
|
}
|
486 |
|
|
|
487 |
|
|
uint32_t osmosdr_get_sample_rate(osmosdr_dev_t *dev)
|
488 |
|
|
{
|
489 |
|
|
if (!dev)
|
490 |
|
|
return 0;
|
491 |
|
|
|
492 |
|
|
return dev->rate;
|
493 |
|
|
}
|
494 |
|
|
|
495 |
4eed4e78
|
Christian Daniel
|
int osmosdr_set_fpga_reg(osmosdr_dev_t *dev, uint8_t reg, uint32_t value)
|
496 |
|
|
{
|
497 |
|
|
osmosdr_dev_t* devt = (osmosdr_dev_t*)dev;
|
498 |
|
|
uint8_t buffer[5];
|
499 |
|
|
|
500 |
|
|
buffer[0] = reg;
|
501 |
|
|
buffer[1] = (uint8_t)(value >> 24);
|
502 |
|
|
buffer[2] = (uint8_t)(value >> 16);
|
503 |
|
|
buffer[3] = (uint8_t)(value >> 8);
|
504 |
|
|
buffer[4] = (uint8_t)(value >> 0);
|
505 |
|
|
|
506 |
|
|
return libusb_control_transfer(devt->devh, CTRL_OUT, 0x07,
|
507 |
|
|
FUNC(1, 0x01), 0,
|
508 |
9e2a7e19
|
Dimitri Stolnikov
|
buffer, sizeof(buffer), CTRL_TIMEOUT);
|
509 |
4eed4e78
|
Christian Daniel
|
}
|
510 |
|
|
|
511 |
|
|
int osmosdr_set_fpga_decimation(osmosdr_dev_t *dev, int dec)
|
512 |
|
|
{
|
513 |
|
|
osmosdr_dev_t* devt = (osmosdr_dev_t*)dev;
|
514 |
|
|
uint8_t buffer[1];
|
515 |
|
|
|
516 |
|
|
if((dec < 0) || (dec > 6))
|
517 |
|
|
return -1;
|
518 |
|
|
|
519 |
|
|
buffer[0] = dec;
|
520 |
|
|
|
521 |
|
|
return libusb_control_transfer(devt->devh, CTRL_OUT, 0x07,
|
522 |
|
|
FUNC(1, 0x02), 0,
|
523 |
9e2a7e19
|
Dimitri Stolnikov
|
buffer, sizeof(buffer), CTRL_TIMEOUT);
|
524 |
4eed4e78
|
Christian Daniel
|
}
|
525 |
|
|
|
526 |
|
|
int osmosdr_set_fpga_iq_swap(osmosdr_dev_t *dev, int sw)
|
527 |
|
|
{
|
528 |
|
|
osmosdr_dev_t* devt = (osmosdr_dev_t*)dev;
|
529 |
|
|
uint8_t buffer[1];
|
530 |
|
|
|
531 |
|
|
if((sw < 0) || (sw > 1))
|
532 |
|
|
return -1;
|
533 |
|
|
|
534 |
|
|
buffer[0] = sw;
|
535 |
|
|
|
536 |
|
|
return libusb_control_transfer(devt->devh, CTRL_OUT, 0x07,
|
537 |
|
|
FUNC(1, 0x03), 0,
|
538 |
9e2a7e19
|
Dimitri Stolnikov
|
buffer, sizeof(buffer), CTRL_TIMEOUT);
|
539 |
4eed4e78
|
Christian Daniel
|
}
|
540 |
|
|
|
541 |
|
|
int osmosdr_set_fpga_iq_gain(osmosdr_dev_t *dev, uint16_t igain, uint16_t qgain)
|
542 |
|
|
{
|
543 |
|
|
osmosdr_dev_t* devt = (osmosdr_dev_t*)dev;
|
544 |
|
|
uint8_t buffer[4];
|
545 |
|
|
|
546 |
|
|
buffer[0] = (uint8_t)(igain >> 8);
|
547 |
|
|
buffer[1] = (uint8_t)(igain >> 0);
|
548 |
|
|
buffer[2] = (uint8_t)(qgain >> 8);
|
549 |
|
|
buffer[3] = (uint8_t)(qgain >> 0);
|
550 |
|
|
|
551 |
|
|
return libusb_control_transfer(devt->devh, CTRL_OUT, 0x07,
|
552 |
|
|
FUNC(1, 0x04), 0,
|
553 |
9e2a7e19
|
Dimitri Stolnikov
|
buffer, sizeof(buffer), CTRL_TIMEOUT);
|
554 |
4eed4e78
|
Christian Daniel
|
}
|
555 |
|
|
|
556 |
|
|
int osmosdr_set_fpga_iq_ofs(osmosdr_dev_t *dev, int16_t iofs, int16_t qofs)
|
557 |
|
|
{
|
558 |
|
|
osmosdr_dev_t* devt = (osmosdr_dev_t*)dev;
|
559 |
|
|
uint8_t buffer[4];
|
560 |
|
|
|
561 |
|
|
buffer[0] = (uint8_t)(iofs >> 8);
|
562 |
|
|
buffer[1] = (uint8_t)(iofs >> 0);
|
563 |
|
|
buffer[2] = (uint8_t)(qofs >> 8);
|
564 |
|
|
buffer[3] = (uint8_t)(qofs >> 0);
|
565 |
|
|
|
566 |
|
|
return libusb_control_transfer(devt->devh, CTRL_OUT, 0x07,
|
567 |
|
|
FUNC(1, 0x05), 0,
|
568 |
9e2a7e19
|
Dimitri Stolnikov
|
buffer, sizeof(buffer), CTRL_TIMEOUT);
|
569 |
4eed4e78
|
Christian Daniel
|
}
|
570 |
|
|
|
571 |
233c5b72
|
Dimitri Stolnikov
|
static osmosdr_dongle_t *find_known_device(uint16_t vid, uint16_t pid)
|
572 |
ce0473f5
|
Dimitri Stolnikov
|
{
|
573 |
|
|
unsigned int i;
|
574 |
|
|
osmosdr_dongle_t *device = NULL;
|
575 |
|
|
|
576 |
|
|
for (i = 0; i < sizeof(known_devices)/sizeof(osmosdr_dongle_t); i++ ) {
|
577 |
|
|
if (known_devices[i].vid == vid && known_devices[i].pid == pid) {
|
578 |
|
|
device = &known_devices[i];
|
579 |
|
|
break;
|
580 |
|
|
}
|
581 |
|
|
}
|
582 |
|
|
|
583 |
|
|
return device;
|
584 |
|
|
}
|
585 |
|
|
|
586 |
|
|
uint32_t osmosdr_get_device_count(void)
|
587 |
|
|
{
|
588 |
|
|
int i;
|
589 |
|
|
libusb_context *ctx;
|
590 |
|
|
libusb_device **list;
|
591 |
|
|
struct libusb_device_descriptor dd;
|
592 |
7d90bb80
|
Dimitri Stolnikov
|
uint32_t device_count = 0;
|
593 |
ce0473f5
|
Dimitri Stolnikov
|
ssize_t cnt;
|
594 |
|
|
|
595 |
|
|
libusb_init(&ctx);
|
596 |
|
|
|
597 |
|
|
cnt = libusb_get_device_list(ctx, &list);
|
598 |
|
|
|
599 |
|
|
for (i = 0; i < cnt; i++) {
|
600 |
|
|
libusb_get_device_descriptor(list[i], &dd);
|
601 |
|
|
|
602 |
|
|
if (find_known_device(dd.idVendor, dd.idProduct))
|
603 |
|
|
device_count++;
|
604 |
|
|
}
|
605 |
|
|
|
606 |
790aa13a
|
Dimitri Stolnikov
|
libusb_free_device_list(list, 1);
|
607 |
ce0473f5
|
Dimitri Stolnikov
|
|
608 |
|
|
libusb_exit(ctx);
|
609 |
|
|
|
610 |
|
|
return device_count;
|
611 |
|
|
}
|
612 |
|
|
|
613 |
|
|
const char *osmosdr_get_device_name(uint32_t index)
|
614 |
|
|
{
|
615 |
|
|
int i;
|
616 |
|
|
libusb_context *ctx;
|
617 |
|
|
libusb_device **list;
|
618 |
|
|
struct libusb_device_descriptor dd;
|
619 |
|
|
osmosdr_dongle_t *device = NULL;
|
620 |
|
|
uint32_t device_count = 0;
|
621 |
|
|
ssize_t cnt;
|
622 |
|
|
|
623 |
|
|
libusb_init(&ctx);
|
624 |
|
|
|
625 |
|
|
cnt = libusb_get_device_list(ctx, &list);
|
626 |
|
|
|
627 |
|
|
for (i = 0; i < cnt; i++) {
|
628 |
|
|
libusb_get_device_descriptor(list[i], &dd);
|
629 |
|
|
|
630 |
|
|
device = find_known_device(dd.idVendor, dd.idProduct);
|
631 |
|
|
|
632 |
|
|
if (device) {
|
633 |
|
|
device_count++;
|
634 |
|
|
|
635 |
|
|
if (index == device_count - 1)
|
636 |
|
|
break;
|
637 |
41eb5416
|
Dimitri Stolnikov
|
|
638 |
|
|
device = NULL;
|
639 |
ce0473f5
|
Dimitri Stolnikov
|
}
|
640 |
|
|
}
|
641 |
|
|
|
642 |
790aa13a
|
Dimitri Stolnikov
|
libusb_free_device_list(list, 1);
|
643 |
ce0473f5
|
Dimitri Stolnikov
|
|
644 |
|
|
libusb_exit(ctx);
|
645 |
|
|
|
646 |
|
|
if (device)
|
647 |
|
|
return device->name;
|
648 |
|
|
else
|
649 |
|
|
return "";
|
650 |
|
|
}
|
651 |
|
|
|
652 |
7d90bb80
|
Dimitri Stolnikov
|
int osmosdr_get_device_usb_strings(uint32_t index, char *manufact,
|
653 |
|
|
char *product, char *serial)
|
654 |
|
|
{
|
655 |
|
|
int r = -2;
|
656 |
|
|
int i;
|
657 |
|
|
libusb_context *ctx;
|
658 |
|
|
libusb_device **list;
|
659 |
|
|
struct libusb_device_descriptor dd;
|
660 |
|
|
osmosdr_dev_t devt;
|
661 |
|
|
uint32_t device_count = 0;
|
662 |
|
|
ssize_t cnt;
|
663 |
|
|
|
664 |
|
|
libusb_init(&ctx);
|
665 |
|
|
|
666 |
|
|
cnt = libusb_get_device_list(ctx, &list);
|
667 |
|
|
|
668 |
|
|
for (i = 0; i < cnt; i++) {
|
669 |
|
|
libusb_get_device_descriptor(list[i], &dd);
|
670 |
|
|
|
671 |
41eb5416
|
Dimitri Stolnikov
|
if (find_known_device(dd.idVendor, dd.idProduct))
|
672 |
7d90bb80
|
Dimitri Stolnikov
|
device_count++;
|
673 |
|
|
|
674 |
41eb5416
|
Dimitri Stolnikov
|
if (index == device_count - 1) {
|
675 |
|
|
r = libusb_open(list[i], &devt.devh);
|
676 |
|
|
if (!r) {
|
677 |
|
|
r = osmosdr_get_usb_strings(&devt,
|
678 |
|
|
manufact,
|
679 |
|
|
product,
|
680 |
|
|
serial);
|
681 |
|
|
libusb_close(devt.devh);
|
682 |
7d90bb80
|
Dimitri Stolnikov
|
}
|
683 |
41eb5416
|
Dimitri Stolnikov
|
break;
|
684 |
7d90bb80
|
Dimitri Stolnikov
|
}
|
685 |
|
|
}
|
686 |
|
|
|
687 |
|
|
libusb_free_device_list(list, 1);
|
688 |
|
|
|
689 |
|
|
libusb_exit(ctx);
|
690 |
|
|
|
691 |
|
|
return r;
|
692 |
|
|
}
|
693 |
|
|
|
694 |
ce0473f5
|
Dimitri Stolnikov
|
int osmosdr_open(osmosdr_dev_t **out_dev, uint32_t index)
|
695 |
|
|
{
|
696 |
|
|
int r;
|
697 |
|
|
int i;
|
698 |
|
|
libusb_device **list;
|
699 |
|
|
osmosdr_dev_t *dev = NULL;
|
700 |
|
|
libusb_device *device = NULL;
|
701 |
|
|
uint32_t device_count = 0;
|
702 |
|
|
struct libusb_device_descriptor dd;
|
703 |
|
|
ssize_t cnt;
|
704 |
|
|
|
705 |
|
|
dev = malloc(sizeof(osmosdr_dev_t));
|
706 |
|
|
if (NULL == dev)
|
707 |
|
|
return -ENOMEM;
|
708 |
|
|
|
709 |
|
|
memset(dev, 0, sizeof(osmosdr_dev_t));
|
710 |
|
|
|
711 |
|
|
libusb_init(&dev->ctx);
|
712 |
|
|
|
713 |
|
|
cnt = libusb_get_device_list(dev->ctx, &list);
|
714 |
|
|
|
715 |
|
|
for (i = 0; i < cnt; i++) {
|
716 |
|
|
device = list[i];
|
717 |
|
|
|
718 |
|
|
libusb_get_device_descriptor(list[i], &dd);
|
719 |
|
|
|
720 |
41eb5416
|
Dimitri Stolnikov
|
if (find_known_device(dd.idVendor, dd.idProduct))
|
721 |
ce0473f5
|
Dimitri Stolnikov
|
device_count++;
|
722 |
|
|
|
723 |
|
|
if (index == device_count - 1)
|
724 |
|
|
break;
|
725 |
|
|
|
726 |
|
|
device = NULL;
|
727 |
|
|
}
|
728 |
|
|
|
729 |
|
|
if (!device) {
|
730 |
|
|
r = -1;
|
731 |
|
|
goto err;
|
732 |
|
|
}
|
733 |
|
|
|
734 |
|
|
r = libusb_open(device, &dev->devh);
|
735 |
|
|
if (r < 0) {
|
736 |
790aa13a
|
Dimitri Stolnikov
|
libusb_free_device_list(list, 1);
|
737 |
ce0473f5
|
Dimitri Stolnikov
|
fprintf(stderr, "usb_open error %d\n", r);
|
738 |
|
|
goto err;
|
739 |
|
|
}
|
740 |
|
|
|
741 |
790aa13a
|
Dimitri Stolnikov
|
libusb_free_device_list(list, 1);
|
742 |
ce0473f5
|
Dimitri Stolnikov
|
|
743 |
|
|
r = libusb_claim_interface(dev->devh, 0);
|
744 |
|
|
if (r < 0) {
|
745 |
|
|
fprintf(stderr, "usb_claim_interface error %d\n", r);
|
746 |
|
|
goto err;
|
747 |
|
|
}
|
748 |
|
|
|
749 |
|
|
dev->adc_clock = DEF_ADC_FREQ;
|
750 |
|
|
|
751 |
9e2a7e19
|
Dimitri Stolnikov
|
dev->tuner = &tuner; /* so far we have only one tuner */
|
752 |
bcc45534
|
Dimitri Stolnikov
|
|
753 |
9e2a7e19
|
Dimitri Stolnikov
|
if (dev->tuner->init) {
|
754 |
|
|
r = dev->tuner->init(dev);
|
755 |
ce0473f5
|
Dimitri Stolnikov
|
}
|
756 |
|
|
|
757 |
|
|
*out_dev = dev;
|
758 |
|
|
|
759 |
|
|
return 0;
|
760 |
|
|
err:
|
761 |
|
|
if (dev) {
|
762 |
|
|
if (dev->ctx)
|
763 |
|
|
libusb_exit(dev->ctx);
|
764 |
|
|
|
765 |
|
|
free(dev);
|
766 |
|
|
}
|
767 |
|
|
|
768 |
|
|
return r;
|
769 |
|
|
}
|
770 |
|
|
|
771 |
|
|
int osmosdr_close(osmosdr_dev_t *dev)
|
772 |
|
|
{
|
773 |
|
|
if (!dev)
|
774 |
|
|
return -1;
|
775 |
|
|
|
776 |
a09144bc
|
Dimitri Stolnikov
|
/* block until all async operations have been completed (if any) */
|
777 |
|
|
while (OSMOSDR_INACTIVE != dev->async_status)
|
778 |
|
|
usleep(10);
|
779 |
|
|
|
780 |
ce0473f5
|
Dimitri Stolnikov
|
libusb_release_interface(dev->devh, 0);
|
781 |
|
|
libusb_close(dev->devh);
|
782 |
|
|
|
783 |
|
|
libusb_exit(dev->ctx);
|
784 |
|
|
|
785 |
|
|
free(dev);
|
786 |
|
|
|
787 |
|
|
return 0;
|
788 |
|
|
}
|
789 |
|
|
|
790 |
|
|
int osmosdr_reset_buffer(osmosdr_dev_t *dev)
|
791 |
|
|
{
|
792 |
|
|
if (!dev)
|
793 |
|
|
return -1;
|
794 |
|
|
|
795 |
|
|
/* TODO: implement */
|
796 |
|
|
|
797 |
|
|
return 0;
|
798 |
|
|
}
|
799 |
|
|
|
800 |
|
|
int osmosdr_read_sync(osmosdr_dev_t *dev, void *buf, int len, int *n_read)
|
801 |
|
|
{
|
802 |
|
|
if (!dev)
|
803 |
|
|
return -1;
|
804 |
|
|
|
805 |
5b2f5902
|
Dimitri Stolnikov
|
return libusb_bulk_transfer(dev->devh, 0x86, buf, len, n_read, BULK_TIMEOUT);
|
806 |
ce0473f5
|
Dimitri Stolnikov
|
}
|
807 |
|
|
|
808 |
|
|
static void LIBUSB_CALL _libusb_callback(struct libusb_transfer *xfer)
|
809 |
|
|
{
|
810 |
|
|
osmosdr_dev_t *dev = (osmosdr_dev_t *)xfer->user_data;
|
811 |
|
|
|
812 |
|
|
if (LIBUSB_TRANSFER_COMPLETED == xfer->status) {
|
813 |
|
|
if (dev->cb)
|
814 |
|
|
dev->cb(xfer->buffer, xfer->actual_length, dev->cb_ctx);
|
815 |
|
|
|
816 |
|
|
libusb_submit_transfer(xfer); /* resubmit transfer */
|
817 |
a09144bc
|
Dimitri Stolnikov
|
} else if (LIBUSB_TRANSFER_CANCELLED == xfer->status) {
|
818 |
|
|
/* nothing to do */
|
819 |
ce0473f5
|
Dimitri Stolnikov
|
} else {
|
820 |
|
|
/*fprintf(stderr, "transfer status: %d\n", xfer->status);*/
|
821 |
|
|
}
|
822 |
|
|
}
|
823 |
|
|
|
824 |
|
|
static int _osmosdr_alloc_async_buffers(osmosdr_dev_t *dev)
|
825 |
|
|
{
|
826 |
|
|
unsigned int i;
|
827 |
|
|
|
828 |
|
|
if (!dev)
|
829 |
|
|
return -1;
|
830 |
|
|
|
831 |
|
|
if (!dev->xfer) {
|
832 |
|
|
dev->xfer = malloc(dev->xfer_buf_num *
|
833 |
|
|
sizeof(struct libusb_transfer *));
|
834 |
|
|
|
835 |
|
|
for(i = 0; i < dev->xfer_buf_num; ++i)
|
836 |
|
|
dev->xfer[i] = libusb_alloc_transfer(0);
|
837 |
|
|
}
|
838 |
|
|
|
839 |
|
|
if (!dev->xfer_buf) {
|
840 |
|
|
dev->xfer_buf = malloc(dev->xfer_buf_num *
|
841 |
|
|
sizeof(unsigned char *));
|
842 |
|
|
|
843 |
|
|
for(i = 0; i < dev->xfer_buf_num; ++i)
|
844 |
|
|
dev->xfer_buf[i] = malloc(dev->xfer_buf_len);
|
845 |
|
|
}
|
846 |
|
|
|
847 |
|
|
return 0;
|
848 |
|
|
}
|
849 |
|
|
|
850 |
|
|
static int _osmosdr_free_async_buffers(osmosdr_dev_t *dev)
|
851 |
|
|
{
|
852 |
|
|
unsigned int i;
|
853 |
|
|
|
854 |
|
|
if (!dev)
|
855 |
|
|
return -1;
|
856 |
|
|
|
857 |
|
|
if (dev->xfer) {
|
858 |
|
|
for(i = 0; i < dev->xfer_buf_num; ++i) {
|
859 |
|
|
if (dev->xfer[i]) {
|
860 |
|
|
libusb_free_transfer(dev->xfer[i]);
|
861 |
|
|
}
|
862 |
|
|
}
|
863 |
|
|
|
864 |
|
|
free(dev->xfer);
|
865 |
|
|
dev->xfer = NULL;
|
866 |
|
|
}
|
867 |
|
|
|
868 |
|
|
if (dev->xfer_buf) {
|
869 |
|
|
for(i = 0; i < dev->xfer_buf_num; ++i) {
|
870 |
|
|
if (dev->xfer_buf[i])
|
871 |
|
|
free(dev->xfer_buf[i]);
|
872 |
|
|
}
|
873 |
|
|
|
874 |
|
|
free(dev->xfer_buf);
|
875 |
|
|
dev->xfer_buf = NULL;
|
876 |
|
|
}
|
877 |
|
|
|
878 |
|
|
return 0;
|
879 |
|
|
}
|
880 |
|
|
|
881 |
|
|
int osmosdr_read_async(osmosdr_dev_t *dev, osmosdr_read_async_cb_t cb, void *ctx,
|
882 |
|
|
uint32_t buf_num, uint32_t buf_len)
|
883 |
|
|
{
|
884 |
|
|
unsigned int i;
|
885 |
a09144bc
|
Dimitri Stolnikov
|
int r = 0;
|
886 |
ce0473f5
|
Dimitri Stolnikov
|
struct timeval tv = { 1, 0 };
|
887 |
a09144bc
|
Dimitri Stolnikov
|
enum osmosdr_async_status next_status = OSMOSDR_INACTIVE;
|
888 |
ce0473f5
|
Dimitri Stolnikov
|
|
889 |
|
|
if (!dev)
|
890 |
|
|
return -1;
|
891 |
|
|
|
892 |
a09144bc
|
Dimitri Stolnikov
|
if (OSMOSDR_INACTIVE != dev->async_status)
|
893 |
|
|
return -2;
|
894 |
|
|
|
895 |
|
|
dev->async_status = OSMOSDR_RUNNING;
|
896 |
|
|
|
897 |
ce0473f5
|
Dimitri Stolnikov
|
dev->cb = cb;
|
898 |
|
|
dev->cb_ctx = ctx;
|
899 |
|
|
|
900 |
|
|
if (buf_num > 0)
|
901 |
|
|
dev->xfer_buf_num = buf_num;
|
902 |
|
|
else
|
903 |
|
|
dev->xfer_buf_num = DEFAULT_BUF_NUMBER;
|
904 |
|
|
|
905 |
|
|
if (buf_len > 0 && buf_len % 512 == 0) /* len must be multiple of 512 */
|
906 |
|
|
dev->xfer_buf_len = buf_len;
|
907 |
|
|
else
|
908 |
|
|
dev->xfer_buf_len = DEFAULT_BUF_LENGTH;
|
909 |
|
|
|
910 |
|
|
_osmosdr_alloc_async_buffers(dev);
|
911 |
|
|
|
912 |
|
|
for(i = 0; i < dev->xfer_buf_num; ++i) {
|
913 |
|
|
libusb_fill_bulk_transfer(dev->xfer[i],
|
914 |
|
|
dev->devh,
|
915 |
5b2f5902
|
Dimitri Stolnikov
|
0x86,
|
916 |
ce0473f5
|
Dimitri Stolnikov
|
dev->xfer_buf[i],
|
917 |
|
|
dev->xfer_buf_len,
|
918 |
|
|
_libusb_callback,
|
919 |
|
|
(void *)dev,
|
920 |
|
|
BULK_TIMEOUT);
|
921 |
|
|
|
922 |
|
|
libusb_submit_transfer(dev->xfer[i]);
|
923 |
|
|
}
|
924 |
|
|
|
925 |
|
|
while (OSMOSDR_INACTIVE != dev->async_status) {
|
926 |
|
|
r = libusb_handle_events_timeout(dev->ctx, &tv);
|
927 |
|
|
if (r < 0) {
|
928 |
|
|
/*fprintf(stderr, "handle_events returned: %d\n", r);*/
|
929 |
|
|
if (r == LIBUSB_ERROR_INTERRUPTED) /* stray signal */
|
930 |
|
|
continue;
|
931 |
|
|
break;
|
932 |
|
|
}
|
933 |
|
|
|
934 |
|
|
if (OSMOSDR_CANCELING == dev->async_status) {
|
935 |
a09144bc
|
Dimitri Stolnikov
|
next_status = OSMOSDR_INACTIVE;
|
936 |
ce0473f5
|
Dimitri Stolnikov
|
|
937 |
|
|
if (!dev->xfer)
|
938 |
|
|
break;
|
939 |
|
|
|
940 |
|
|
for(i = 0; i < dev->xfer_buf_num; ++i) {
|
941 |
|
|
if (!dev->xfer[i])
|
942 |
|
|
continue;
|
943 |
|
|
|
944 |
a09144bc
|
Dimitri Stolnikov
|
if (LIBUSB_TRANSFER_CANCELLED !=
|
945 |
|
|
dev->xfer[i]->status) {
|
946 |
ce0473f5
|
Dimitri Stolnikov
|
libusb_cancel_transfer(dev->xfer[i]);
|
947 |
a09144bc
|
Dimitri Stolnikov
|
next_status = OSMOSDR_CANCELING;
|
948 |
ce0473f5
|
Dimitri Stolnikov
|
}
|
949 |
|
|
}
|
950 |
|
|
|
951 |
a09144bc
|
Dimitri Stolnikov
|
if (OSMOSDR_INACTIVE == next_status)
|
952 |
ce0473f5
|
Dimitri Stolnikov
|
break;
|
953 |
|
|
}
|
954 |
|
|
}
|
955 |
|
|
|
956 |
|
|
_osmosdr_free_async_buffers(dev);
|
957 |
|
|
|
958 |
a09144bc
|
Dimitri Stolnikov
|
dev->async_status = next_status;
|
959 |
|
|
|
960 |
ce0473f5
|
Dimitri Stolnikov
|
return r;
|
961 |
|
|
}
|
962 |
|
|
|
963 |
|
|
int osmosdr_cancel_async(osmosdr_dev_t *dev)
|
964 |
|
|
{
|
965 |
|
|
if (!dev)
|
966 |
|
|
return -1;
|
967 |
|
|
|
968 |
a09144bc
|
Dimitri Stolnikov
|
/* if streaming, try to cancel gracefully */
|
969 |
ce0473f5
|
Dimitri Stolnikov
|
if (OSMOSDR_RUNNING == dev->async_status) {
|
970 |
|
|
dev->async_status = OSMOSDR_CANCELING;
|
971 |
|
|
return 0;
|
972 |
|
|
}
|
973 |
|
|
|
974 |
a09144bc
|
Dimitri Stolnikov
|
/* if called while in pending state, change the state forcefully */
|
975 |
|
|
if (OSMOSDR_INACTIVE != dev->async_status) {
|
976 |
|
|
dev->async_status = OSMOSDR_INACTIVE;
|
977 |
|
|
return 0;
|
978 |
|
|
}
|
979 |
|
|
|
980 |
ce0473f5
|
Dimitri Stolnikov
|
return -2;
|
981 |
|
|
}
|