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srsRAN_4G
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Allow NULL args in rf_open()

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master
ismagom 9 years ago
parent cafb8e1ab0
commit bfd6fca7d0
3 changed files with 103 additions and 92 deletions
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2
srslte/lib/rf/src/rf_blade_imp.c
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@ -185,7 +185,7 @@ int rf_blade_open(char *args, void **h)
*h = handler;
printf("Opening bladeRF...\n");
int status = bladerf_open(&handler->dev, NULL);
int status = bladerf_open(&handler->dev, args);
if (status) {
fprintf(stderr, "Unable to open device: %s\n", bladerf_strerror(status));
return status;

20
srslte/lib/rf/src/rf_imp.c
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@ -101,15 +101,17 @@ const char* srslte_rf_get_devname(srslte_rf_t *rf) {
int srslte_rf_open_devname(srslte_rf_t *rf, char *devname, char *args) {
/* Try to open the device if name is provided */
if (devname) {
int i=0;
while(available_devices[i] != NULL) {
if (!strcmp(available_devices[i]->name, devname)) {
rf->dev = available_devices[i];
return available_devices[i]->srslte_rf_open(args, &rf->handler);
}
i++;
}
printf("Device %s not found. Switching to auto mode\n", devname);
if (devname[0] != '\0') {
int i=0;
while(available_devices[i] != NULL) {
if (!strcmp(available_devices[i]->name, devname)) {
rf->dev = available_devices[i];
return available_devices[i]->srslte_rf_open(args, &rf->handler);
}
i++;
}
printf("Device %s not found. Switching to auto mode\n", devname);
}
}
/* If in auto mode or provided device not found, try to open in order of apperance in available_devices[] array */

173
srslte/lib/rf/src/rf_uhd_imp.c
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@ -204,96 +204,105 @@ float rf_uhd_get_rssi(void *h) {
int rf_uhd_open(char *args, void **h)
{
*h = NULL;
rf_uhd_handler_t *handler = (rf_uhd_handler_t*) malloc(sizeof(rf_uhd_handler_t));
if (!handler) {
perror("malloc");
return -1;
}
*h = handler;
/* Set priority to UHD threads */
uhd_set_thread_priority(uhd_default_thread_priority, true);
/* Set correct options for the USRP device */
uhd_string_vector_handle devices_str;
uhd_string_vector_make(&devices_str);
uhd_usrp_find("", &devices_str);
/* If device type or name not given in args, choose a B200 */
if (args[0]=='\0') {
// If B200 is available, use it
if (find_string(devices_str, "type=b200") && !strstr(args, "recv_frame_size")) {
args = "type=b200,recv_frame_size=9232,num_recv_frames=64,send_frame_size=9232,num_send_frames=64";
if (h) {
*h = NULL;
rf_uhd_handler_t *handler = (rf_uhd_handler_t*) malloc(sizeof(rf_uhd_handler_t));
if (!handler) {
perror("malloc");
return -1;
}
}
/* Create UHD handler */
printf("Opening USRP with args: %s\n", args);
uhd_error error = uhd_usrp_make(&handler->usrp, args);
if (error) {
fprintf(stderr, "Error opening UHD: code %d\n", error);
return -1;
}
*h = handler;
size_t channel = 0;
uhd_stream_args_t stream_args = {
.cpu_format = "fc32",
.otw_format = "sc16",
.args = "",
.channel_list = &channel,
.n_channels = 1
};
/* Set priority to UHD threads */
uhd_set_thread_priority(uhd_default_thread_priority, true);
/* Initialize rx and tx stremers */
uhd_rx_streamer_make(&handler->rx_stream);
error = uhd_usrp_get_rx_stream(handler->usrp, &stream_args, handler->rx_stream);
if (error) {
fprintf(stderr, "Error opening RX stream: %d\n", error);
return -1;
}
uhd_tx_streamer_make(&handler->tx_stream);
error = uhd_usrp_get_tx_stream(handler->usrp, &stream_args, handler->tx_stream);
if (error) {
fprintf(stderr, "Error opening TX stream: %d\n", error);
return -1;
}
uhd_rx_streamer_max_num_samps(handler->rx_stream, &handler->rx_nof_samples);
uhd_tx_streamer_max_num_samps(handler->tx_stream, &handler->tx_nof_samples);
uhd_meta_range_make(&handler->rx_gain_range);
uhd_usrp_get_rx_gain_range(handler->usrp, "", 0, handler->rx_gain_range);
// Make metadata objects for RX/TX
uhd_rx_metadata_make(&handler->rx_md);
uhd_rx_metadata_make(&handler->rx_md_first);
uhd_tx_metadata_make(&handler->tx_md, false, 0, 0, false, false);
/* Find out if the master clock rate is configurable */
double cur_clock, new_clock;
uhd_usrp_get_master_clock_rate(handler->usrp, 0, &cur_clock);
printf("Trying to dynamically change Master clock...\n");
uhd_usrp_set_master_clock_rate(handler->usrp, cur_clock/2, 0);
uhd_usrp_get_master_clock_rate(handler->usrp, 0, &new_clock);
if (new_clock == cur_clock) {
handler->dynamic_rate = false;
/* Master clock rate is not configurable. Check if it is compatible with LTE */
int cur_clock_i = (int) cur_clock;
if (cur_clock_i % 1920000) {
fprintf(stderr, "Error: LTE sampling rates are not supported. Master clock rate is %.1f MHz\n", cur_clock/1e6);
/* Set correct options for the USRP device */
uhd_string_vector_handle devices_str;
uhd_string_vector_make(&devices_str);
uhd_usrp_find("", &devices_str);
// Allow NULL parameter
if (args == NULL) {
args = "";
}
/* If device type or name not given in args, choose a B200 */
if (args[0]=='\0') {
// If B200 is available, use it
if (find_string(devices_str, "type=b200") && !strstr(args, "recv_frame_size")) {
args = "type=b200,recv_frame_size=9232,num_recv_frames=64,send_frame_size=9232,num_send_frames=64";
}
}
/* Create UHD handler */
printf("Opening USRP with args: %s\n", args);
uhd_error error = uhd_usrp_make(&handler->usrp, args);
if (error) {
fprintf(stderr, "Error opening UHD: code %d\n", error);
return -1;
}
size_t channel = 0;
uhd_stream_args_t stream_args = {
.cpu_format = "fc32",
.otw_format = "sc16",
.args = "",
.channel_list = &channel,
.n_channels = 1
};
/* Initialize rx and tx stremers */
uhd_rx_streamer_make(&handler->rx_stream);
error = uhd_usrp_get_rx_stream(handler->usrp, &stream_args, handler->rx_stream);
if (error) {
fprintf(stderr, "Error opening RX stream: %d\n", error);
return -1;
}
uhd_tx_streamer_make(&handler->tx_stream);
error = uhd_usrp_get_tx_stream(handler->usrp, &stream_args, handler->tx_stream);
if (error) {
fprintf(stderr, "Error opening TX stream: %d\n", error);
return -1;
}
uhd_rx_streamer_max_num_samps(handler->rx_stream, &handler->rx_nof_samples);
uhd_tx_streamer_max_num_samps(handler->tx_stream, &handler->tx_nof_samples);
uhd_meta_range_make(&handler->rx_gain_range);
uhd_usrp_get_rx_gain_range(handler->usrp, "", 0, handler->rx_gain_range);
// Make metadata objects for RX/TX
uhd_rx_metadata_make(&handler->rx_md);
uhd_rx_metadata_make(&handler->rx_md_first);
uhd_tx_metadata_make(&handler->tx_md, false, 0, 0, false, false);
/* Find out if the master clock rate is configurable */
double cur_clock, new_clock;
uhd_usrp_get_master_clock_rate(handler->usrp, 0, &cur_clock);
printf("Trying to dynamically change Master clock...\n");
uhd_usrp_set_master_clock_rate(handler->usrp, cur_clock/2, 0);
uhd_usrp_get_master_clock_rate(handler->usrp, 0, &new_clock);
if (new_clock == cur_clock) {
handler->dynamic_rate = false;
/* Master clock rate is not configurable. Check if it is compatible with LTE */
int cur_clock_i = (int) cur_clock;
if (cur_clock_i % 1920000) {
fprintf(stderr, "Error: LTE sampling rates are not supported. Master clock rate is %.1f MHz\n", cur_clock/1e6);
return -1;
} else {
printf("Master clock is not configurable. Using standard symbol sizes and sampling rates.\n");
srslte_use_standard_symbol_size(true);
}
} else {
printf("Master clock is not configurable. Using standard symbol sizes and sampling rates.\n");
srslte_use_standard_symbol_size(true);
printf("Master clock is configurable. Using reduced symbol sizes and sampling rates.\n");
handler->dynamic_rate = true;
}
return 0;
} else {
printf("Master clock is configurable. Using reduced symbol sizes and sampling rates.\n");
handler->dynamic_rate = true;
return SRSLTE_ERROR_INVALID_INPUTS;
}
return 0;
}

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