void * tx_task_run(void *repeater_)
{
int status;
struct repeater *repeater = (struct repeater *)repeater_;
bool exit_early;
/* Wait for RX task to buffer up some samples before we begin
* consuming them */
pthread_mutex_lock(&repeater->buf_mgmt.lock);
while(repeater->buf_mgmt.num_filled < repeater->buf_mgmt.prefill_count &&
repeater->buf_mgmt.tx_idx >= 0) {
status = pthread_cond_wait(&repeater->buf_mgmt.samples_available,
&repeater->buf_mgmt.lock);
}
exit_early = repeater->buf_mgmt.tx_idx < 0;
pthread_mutex_unlock(&repeater->buf_mgmt.lock);
if (!exit_early) {
/* Call stream */
status = bladerf_stream(repeater->tx_stream, BLADERF_MODULE_TX);
if (status < 0) {
print_error(repeater, "TX stream failure: %s\n",
bladerf_strerror(status));
}
} else {
printf("EARLY EXIT\n");
}
return NULL;
}
void rxtx_task_exec_running(struct rxtx_data *rxtx)
{
int status = bladerf_stream(rxtx->data_mgmt.stream, rxtx->module);
if (status < 0) {
set_last_error(&rxtx->last_error, ETYPE_BLADERF, status);
}
rxtx_set_state(rxtx, RXTX_STATE_STOP);
}
void * rx_task_run(void *repeater_)
{
int status;
struct repeater *repeater = (struct repeater *)repeater_;
status = bladerf_stream(repeater->rx_stream, BLADERF_MODULE_RX);
if (status < 0) {
print_error(repeater, "RX stream failure: %s\n", bladerf_strerror(status));
}
return NULL;
}
static void exec_running_state(struct bladerf_sync *s)
{
int status;
unsigned int i;
pthread_mutex_lock(&s->buf_mgmt.lock);
if (s->stream_config.module == BLADERF_MODULE_TX) {
/* If we've previously timed out on a stream, we'll likely have some
* stale buffers marked "in-flight" that have since been cancelled. */
for (i = 0; i < s->buf_mgmt.num_buffers; i++) {
if (s->buf_mgmt.status[i] == SYNC_BUFFER_IN_FLIGHT) {
s->buf_mgmt.status[i] = SYNC_BUFFER_EMPTY;
}
}
pthread_cond_signal(&s->buf_mgmt.buf_ready);
} else {
assert(s->stream_config.module == BLADERF_MODULE_RX);
s->buf_mgmt.prod_i = s->stream_config.num_xfers;
for (i = 0; i < s->buf_mgmt.num_buffers; i++) {
if (i < s->stream_config.num_xfers) {
s->buf_mgmt.status[i] = SYNC_BUFFER_IN_FLIGHT;
} else if (s->buf_mgmt.status[i] == SYNC_BUFFER_IN_FLIGHT) {
s->buf_mgmt.status[i] = SYNC_BUFFER_EMPTY;
}
}
}
pthread_mutex_unlock(&s->buf_mgmt.lock);
status = bladerf_stream(s->worker->stream, s->stream_config.module);
log_verbose("%s worker: stream ended with: %s\n",
MODULE_STR(s), bladerf_strerror(status));
/* Save off the result of running the stream so we can report what
* happened to the API caller */
pthread_mutex_lock(&s->worker->state_lock);
s->worker->err_code = status;
pthread_mutex_unlock(&s->worker->state_lock);
/* Wake the API-side if an error occurred, so that it can propagate
* the stream error code back to the API caller */
if (status != 0) {
pthread_mutex_lock(&s->buf_mgmt.lock);
pthread_cond_signal(&s->buf_mgmt.buf_ready);
pthread_mutex_unlock(&s->buf_mgmt.lock);
}
}
void* txrx_thread(void* arg)
{
struct bladerf_thread_data* thread_data = (struct bladerf_thread_data*)arg;
/*
while(*(thread_data->waiting))
usleep(1);
*/
thread_data->rv = bladerf_stream(thread_data->stream,
thread_data->stream_data->module);
return NULL;
}
static void exec_running_state(struct bladerf_sync *s)
{
int status;
unsigned int i;
pthread_mutex_lock(&s->buf_mgmt.lock);
if (s->stream_config.module == BLADERF_MODULE_TX) {
/* If we've previously timed out on a stream, we'll likely have some
* stale buffers marked "in-flight" that have since been cancelled. */
for (i = 0; i < s->buf_mgmt.num_buffers; i++) {
if (s->buf_mgmt.status[i] == SYNC_BUFFER_IN_FLIGHT) {
s->buf_mgmt.status[i] = SYNC_BUFFER_EMPTY;
}
}
pthread_cond_signal(&s->buf_mgmt.buf_ready);
} else {
assert(s->stream_config.module == BLADERF_MODULE_RX);
s->buf_mgmt.prod_i = s->stream_config.num_xfers;
for (i = 0; i < s->buf_mgmt.num_buffers; i++) {
if (i < s->stream_config.num_xfers) {
s->buf_mgmt.status[i] = SYNC_BUFFER_IN_FLIGHT;
} else if (s->buf_mgmt.status[i] == SYNC_BUFFER_IN_FLIGHT) {
s->buf_mgmt.status[i] = SYNC_BUFFER_EMPTY;
}
}
}
pthread_mutex_unlock(&s->buf_mgmt.lock);
status = bladerf_stream(s->worker->stream, s->stream_config.module);
log_verbose("%s worker: stream ended with: %s\n",
MODULE_STR(s), bladerf_strerror(status));
/* Suppress warning if log_verbose is disabled */
(void)status;
}
static void exec_running_state(struct bladerf_sync *s)
{
int status;
status = bladerf_stream(s->worker->stream, s->stream_config.module);
log_verbose("%s worker: stream ended with: %s\n",
MODULE_STR(s), bladerf_strerror(status));
/* Save off the result of running the stream so we can report what
* happened to the API caller */
pthread_mutex_lock(&s->worker->state_lock);
s->worker->err_code = status;
pthread_mutex_unlock(&s->worker->state_lock);
/* Wake the API-side if an error occurred, so that it can propagate
* the stream error code back to the API caller */
if (status != 0) {
pthread_mutex_lock(&s->buf_mgmt.lock);
pthread_cond_signal(&s->buf_mgmt.buf_ready);
pthread_mutex_unlock(&s->buf_mgmt.lock);
}
}
int main(int argc, char *argv[])
{
int status;
unsigned int actual;
struct bladerf *dev;
struct bladerf_stream *stream;
struct test_data test_data;
bool conv_ok;
if (argc != 4 && argc != 5) {
fprintf(stderr,
"Usage: %s [tx|rx] <samples per buffer> <# buffers> [# samples]\n", argv[0]);
return EXIT_FAILURE;
}
if (strcasecmp(argv[1], "rx") == 0 ) {
test_data.module = BLADERF_MODULE_RX ;
} else if (strcasecmp(argv[1], "tx") == 0 ) {
test_data.module = BLADERF_MODULE_TX;
} else {
fprintf(stderr, "Invalid module: %s\n", argv[1]);
return EXIT_FAILURE;
}
test_data.idx = 0;
test_data.fout = NULL;
test_data.samples_per_buffer = str2int(argv[2], 1, INT_MAX, &conv_ok);
if (!conv_ok) {
fprintf(stderr, "Invalid samples per buffer value: %s\n", argv[2]);
return EXIT_FAILURE;
}
test_data.num_buffers = str2int(argv[3], 1, INT_MAX, &conv_ok);
if (!conv_ok) {
fprintf(stderr, "Invalid # buffers: %s\n", argv[3]);
return EXIT_FAILURE;
}
if(test_data.module == BLADERF_MODULE_RX && argc == 5) {
test_data.samples_left = str2int(argv[4], 1, INT_MAX, &conv_ok);
if(!conv_ok) {
fprintf(stderr, "Invalid number of samples: %s\n", argv[4]);
return EXIT_FAILURE;
}
}
if (signal(SIGINT, handler) == SIG_ERR ||
signal(SIGTERM, handler) == SIG_ERR) {
fprintf(stderr, "Failed to set up signal handler\n");
return EXIT_FAILURE;
}
status = bladerf_open(&dev, NULL);
if (status < 0) {
fprintf(stderr, "Failed to open device: %s\n", bladerf_strerror(status));
return EXIT_FAILURE;
}
status = bladerf_is_fpga_configured(dev);
if (status < 0) {
fprintf(stderr, "Failed to determine FPGA state: %s\n",
bladerf_strerror(status));
return EXIT_FAILURE;
} else if (status == 0) {
fprintf(stderr, "Error: FPGA is not loaded.\n");
bladerf_close(dev);
return EXIT_FAILURE;
}
if (!status) {
status = bladerf_set_frequency(dev, test_data.module, 1000000000);
if (status < 0) {
fprintf(stderr, "Failed to set frequency: %s\n",
bladerf_strerror(status));
bladerf_close(dev);
return EXIT_FAILURE;
}
}
if (!status) {
status = bladerf_set_sample_rate(dev, test_data.module, 40000000, &actual);
if (status < 0) {
fprintf(stderr, "Failed to set sample rate: %s\n",
bladerf_strerror(status));
bladerf_close(dev);
return EXIT_FAILURE;
}
}
/* Initialize the stream */
status = bladerf_init_stream(
&stream,
dev,
stream_callback,
&test_data.buffers,
test_data.num_buffers,
BLADERF_FORMAT_SC16_Q12,
test_data.samples_per_buffer,
test_data.num_buffers,
&test_data
) ;
/* Populate buffers with test data */
if( test_data.module == BLADERF_MODULE_TX ) {
if (populate_test_data(&test_data) ) {
fprintf(stderr, "Failed to populated test data\n");
bladerf_deinit_stream(stream);
bladerf_close(dev);
return EXIT_FAILURE;
}
} else {
/* Open up file we'll read test data to */
test_data.fout = fopen( "samples.txt", "w" );
if (!test_data.fout) {
fprintf(stderr, "Failed to open samples.txt: %s\n", strerror(errno));
bladerf_deinit_stream(stream);
bladerf_close(dev);
return EXIT_FAILURE;
}
}
status = bladerf_enable_module(dev, test_data.module, true);
if (status < 0) {
fprintf(stderr, "Failed to enable module: %s\n",
bladerf_strerror(status));
}
if (!status) {
/* Start stream and stay there until we kill the stream */
status = bladerf_stream(stream, test_data.module);
if (status < 0) {
fprintf(stderr, "Stream error: %s\n", bladerf_strerror(status));
}
}
status = bladerf_enable_module(dev, test_data.module, false);
if (status < 0) {
fprintf(stderr, "Failed to enable module: %s\n",
bladerf_strerror(status));
}
bladerf_deinit_stream(stream);
bladerf_close(dev);
if (test_data.fout) {
fclose(test_data.fout);
}
return 0;
}
/* Initialization and stuff
*/
int main(int argc, char **argv)
{
struct bladerf_devinfo *devs;
struct sigaction sigact;
struct devinfo_s device;
int show_help = false;
int n, ret;
char ch;
/* Set up default values, bandwidth and num_transfers
* are automatically calculated later */
device.device_id = DEFAULT_DEVICE_ID;
device.frequency = DEFAULT_FREQUENCY;
device.samplerate = DEFAULT_SAMPLERATE;
device.bandwidth = 0;
device.txvga1 = DEFAULT_TXVGA1;
device.txvga2 = DEFAULT_TXVGA2;
device.buffers.gain = DEFAULT_GAIN;
device.buffers.again = DEFAULT_AGAIN;
device.buffers.num_buffers = DEFAULT_BUFFERS;
device.buffers.num_samples = DEFAULT_SAMPLES;
device.buffers.num_transfers = 0;
device.buffers.pos = 0;
/* Evaluate command line options */
while((ch = getopt(argc, argv, "hd:f:r:b:g:G:a:m:n:s:t:")) != -1)
{
switch(ch)
{
case 'd':
device.device_id = optarg; break;
case 'f':
device.frequency = atoi(optarg); break;
case 'r':
device.samplerate = atoi(optarg); break;
case 'b':
device.bandwidth = atoi(optarg); break;
case 'g':
device.txvga1 = atoi(optarg); break;
case 'G':
device.txvga2 = atoi(optarg); break;
case 'm':
device.buffers.gain = atof(optarg); break;
case 'a':
device.buffers.again = atof(optarg); break;
case 'n':
device.buffers.num_buffers = atoi(optarg); break;
case 's':
device.buffers.num_samples = atoi(optarg); break;
case 't':
device.buffers.num_transfers = atoi(optarg); break;
case 'h':
default:
show_help = true;
}
}
/* Now calculate bandwidth and num_transfers if the user didn't
* configure them manually */
if(device.bandwidth == 0)
device.bandwidth = device.samplerate * 3 / 4;
if(device.buffers.num_transfers == 0)
device.buffers.num_transfers = device.buffers.num_buffers / 2;
if(show_help)
{
usage(argv[0], &device);
return EXIT_FAILURE;
}
argc -= optind;
argv += optind;
/* Allocate the float input buffer */
device.buffers.fbuf =
malloc(device.buffers.num_samples * 2 * sizeof(float));
/* Set up signal handler to enable clean shutdowns */
sigact.sa_handler = sighandler;
sigemptyset(&sigact.sa_mask);
sigact.sa_flags = 0;
sigaction(SIGINT, &sigact, NULL);
sigaction(SIGTERM, &sigact, NULL);
sigaction(SIGQUIT, &sigact, NULL);
sigaction(SIGPIPE, &sigact, NULL);
/* Look for devices attached */
ret = bladerf_get_device_list(&devs);
if(ret < 1)
{
fprintf(stderr, "No devices found.\n");
return EXIT_FAILURE;
}
/* Print some information about all the devices */
for(n = 0; n < ret; n++)
{
fprintf(stderr,
"Serial:\t%s\n"
"USB bus:\t%i\n"
"USB address:\t%i\n"
"Instance:\t%i\n\n",
devs[n].serial,
devs[n].usb_bus,
devs[n].usb_addr,
devs[n].instance
);
}
/* the list is not needed any more */
bladerf_free_device_list(devs);
/* Open a device by given device string
*/
ret = bladerf_open(&device.dev, device.device_id);
if(ret != 0)
{
fprintf(stderr, "Error opening device %s: %s.\n",
device.device_id, bladerf_strerror(ret));
goto out0;
}
else
{
fprintf(stderr, "Device \"%s\" opened successfully.\n",
device.device_id);
}
/* Set the device parameters */
ret = bladerf_set_sample_rate(device.dev,
BLADERF_MODULE_TX, device.samplerate, &device.samplerate);
if(ret != 0)
{
fprintf(stderr, "Error setting sample rate to %i: %s.\n",
device.samplerate, bladerf_strerror(ret));
goto out1;
}
else
{
fprintf(stderr, "Actual sample rate is %i.\n",
device.samplerate);
}
ret = bladerf_set_frequency(device.dev,
BLADERF_MODULE_TX, device.frequency);
if(ret != 0)
{
fprintf(stderr, "Error setting frequency to %iHz: %s.\n",
device.frequency, bladerf_strerror(ret));
goto out1;
}
else
{
fprintf(stderr, "Frequency set to %iHz.\n", device.frequency);
}
ret = bladerf_set_txvga1(device.dev, device.txvga1);
if(ret != 0)
{
fprintf(stderr, "Error setting gain for txvga1: %s.\n",
bladerf_strerror(ret));
goto out1;
}
ret = bladerf_set_txvga2(device.dev, device.txvga2);
if(ret != 0)
{
fprintf(stderr, "Error setting gain for txvga2: %s.\n",
bladerf_strerror(ret));
goto out1;
}
ret = bladerf_set_bandwidth(device.dev,
BLADERF_MODULE_TX, device.bandwidth, &device.bandwidth);
if(ret != 0)
{
fprintf(stderr, "Error setting LPF bandwidth: %s.\n",
bladerf_strerror(ret));
goto out1;
}
else
{
fprintf(stderr, "Bandwidth set to %iHz.\n", device.bandwidth);
}
/* Set up the sample stream */
ret = bladerf_init_stream(&device.stream,
device.dev, stream_callback, &device.buffers.sbuf,
device.buffers.num_buffers, BLADERF_FORMAT_SC16_Q12,
device.buffers.num_samples, device.buffers.num_transfers,
&device.buffers);
if(ret != 0)
{
fprintf(stderr, "Failed setting up stream: %s.\n",
bladerf_strerror(ret));
goto out1;
}
/* Finally enable TX... */
ret = bladerf_enable_module(device.dev, BLADERF_MODULE_TX, true);
if(ret != 0)
{
fprintf(stderr, "Error enabling TX module: %s.\n",
bladerf_strerror(ret));
goto out1;
}
else
{
fprintf(stderr, "Successfully enabled TX module.\n");
}
/* ...and start the stream.
* Execution stops here until stream has finished. */
ret = bladerf_stream(device.stream, BLADERF_MODULE_TX);
if(ret != 0)
{
fprintf(stderr, "Failed starting stream: %s.\n",
bladerf_strerror(ret));
goto out2;
}
/* Cleanup the mess */
out2:
bladerf_deinit_stream(device.stream);
out1:
ret = bladerf_enable_module(device.dev, BLADERF_MODULE_TX, false);
if(ret != 0)
{
fprintf(stderr, "Error disabling TX module: %s.\n",
bladerf_strerror(ret));
}
else
{
fprintf(stderr, "Successfully disabled TX module.\n");
}
bladerf_close(device.dev);
fprintf(stderr, "Device closed.\n");
out0:
return EXIT_SUCCESS;
}
