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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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| 20 |
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#include <signal.h>
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#include <string.h>
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| 22 |
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#include <stdio.h>
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| 23 |
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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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| 30 |
ba4fd966
|
Dimitri Stolnikov
|
//cross platform usleep()
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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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| 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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typedef struct osmosdr_tuner {
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| 53 |
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/* tuner interface */
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int (*init)(void *);
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int (*exit)(void *);
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int (*set_freq)(void *, uint32_t freq /* Hz */);
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int (*set_bw)(void *, int bw /* Hz */);
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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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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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| 66 |
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};
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| 68 |
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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
|
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
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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
|
Dimitri Stolnikov
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#define FUNC(group, function) ((group << 8) | function)
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ce0473f5
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Dimitri Stolnikov
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#define CTRL_TIMEOUT 300
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#define BULK_TIMEOUT 0
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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
|
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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| 146 |
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int e4k_set_bw(void *dev, int bw) { return 0; }
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| 148 |
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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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| 150 |
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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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| 157 |
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| 158 |
9e2a7e19
|
Dimitri Stolnikov
|
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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| 165 |
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return res;
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| 166 |
bcc45534
|
Dimitri Stolnikov
|
}
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| 168 |
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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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| 170 |
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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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| 173 |
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buffer[0] = gain;
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| 174 |
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| 175 |
9e2a7e19
|
Dimitri Stolnikov
|
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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| 182 |
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return res;
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| 183 |
bcc45534
|
Dimitri Stolnikov
|
}
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| 184 |
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| 185 |
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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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| 187 |
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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
|
|
| 190 |
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buffer[0] = (uint8_t)(gain >> 24);
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| 191 |
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buffer[1] = (uint8_t)(gain >> 16);
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| 192 |
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buffer[2] = (uint8_t)(gain >> 8);
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| 193 |
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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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| 196 |
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FUNC(3, 0x0d), 0,
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buffer, sizeof(buffer), CTRL_TIMEOUT);
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| 198 |
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| 199 |
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if (res == sizeof(buffer))
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| 200 |
|
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res = 0;
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| 201 |
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| 202 |
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return res;
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| 203 |
bcc45534
|
Dimitri Stolnikov
|
}
|
| 204 |
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| 205 |
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int e4k_set_gain(void *dev, int gain) {
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| 206 |
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int8_t mixgain = (gain > 340) ? 12 : 4;
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| 207 |
14f7dd44
|
Dimitri Stolnikov
|
#if 0
|
| 208 |
bcc45534
|
Dimitri Stolnikov
|
int enhgain = (gain - 420);
|
| 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
|
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
|
return -1;
|
| 214 |
14f7dd44
|
Dimitri Stolnikov
|
#if 0 /* enhanced mixer gain seems to have no effect */
|
| 215 |
bcc45534
|
Dimitri Stolnikov
|
if(enhgain >= 0)
|
| 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;
|
| 220 |
|
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}
|
| 221 |
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| 222 |
|
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int e4k_set_gain_mode(void *dev, int manual) {
|
| 223 |
|
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osmosdr_dev_t* devt = (osmosdr_dev_t*)dev;
|
| 224 |
|
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uint8_t buffer[1];
|
| 225 |
9e2a7e19
|
Dimitri Stolnikov
|
int res;
|
| 226 |
bcc45534
|
Dimitri Stolnikov
|
|
| 227 |
|
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buffer[0] = (uint8_t)manual;
|
| 228 |
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|
| 229 |
9e2a7e19
|
Dimitri Stolnikov
|
res = libusb_control_transfer(devt->devh, CTRL_OUT, 0x07,
|
| 230 |
|
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FUNC(3, 0x0c), 0,
|
| 231 |
|
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buffer, sizeof(buffer), CTRL_TIMEOUT);
|
| 232 |
|
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|
| 233 |
|
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if (res == sizeof(buffer))
|
| 234 |
|
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res = 0;
|
| 235 |
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|
| 236 |
|
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return res;
|
| 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
|
| 243 |
|
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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,
|
| 246 |
|
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char *serial)
|
| 247 |
|
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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;
|
| 252 |
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|
| 253 |
|
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if (!dev || !dev->devh)
|
| 254 |
|
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return -1;
|
| 255 |
|
|
|
| 256 |
|
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device = libusb_get_device(dev->devh);
|
| 257 |
|
|
|
| 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;
|
| 261 |
|
|
|
| 262 |
|
|
if (manufact) {
|
| 263 |
|
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memset(manufact, 0, buf_max);
|
| 264 |
|
|
libusb_get_string_descriptor_ascii(dev->devh, dd.iManufacturer,
|
| 265 |
|
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(unsigned char *)manufact,
|
| 266 |
|
|
buf_max);
|
| 267 |
|
|
}
|
| 268 |
|
|
|
| 269 |
|
|
if (product) {
|
| 270 |
|
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memset(product, 0, buf_max);
|
| 271 |
|
|
libusb_get_string_descriptor_ascii(dev->devh, dd.iProduct,
|
| 272 |
|
|
(unsigned char *)product,
|
| 273 |
|
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buf_max);
|
| 274 |
|
|
}
|
| 275 |
|
|
|
| 276 |
|
|
if (serial) {
|
| 277 |
|
|
memset(serial, 0, buf_max);
|
| 278 |
|
|
libusb_get_string_descriptor_ascii(dev->devh, dd.iSerialNumber,
|
| 279 |
|
|
(unsigned char *)serial,
|
| 280 |
|
|
buf_max);
|
| 281 |
|
|
}
|
| 282 |
|
|
|
| 283 |
|
|
return 0;
|
| 284 |
|
|
}
|
| 285 |
|
|
|
| 286 |
ce0473f5
|
Dimitri Stolnikov
|
int osmosdr_set_center_freq(osmosdr_dev_t *dev, uint32_t freq)
|
| 287 |
|
|
{
|
| 288 |
9e2a7e19
|
Dimitri Stolnikov
|
int r = -2;
|
| 289 |
ce0473f5
|
Dimitri Stolnikov
|
|
| 290 |
|
|
if (!dev || !dev->tuner)
|
| 291 |
|
|
return -1;
|
| 292 |
|
|
|
| 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 |
|
|
dev->freq = freq;
|
| 298 |
|
|
else
|
| 299 |
|
|
dev->freq = 0;
|
| 300 |
|
|
|
| 301 |
|
|
return r;
|
| 302 |
|
|
}
|
| 303 |
|
|
|
| 304 |
|
|
uint32_t osmosdr_get_center_freq(osmosdr_dev_t *dev)
|
| 305 |
|
|
{
|
| 306 |
|
|
if (!dev || !dev->tuner)
|
| 307 |
|
|
return 0;
|
| 308 |
|
|
|
| 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 |
|
|
}
|
