void controller_execute(controller ctrl)
{
struct timespec time;
float dt;
char header[2048];
size_t header_size = 0;
int16_t * data;
int data_len;
size_t data_size;
clock_gettime(CLOCK_REALTIME_COARSE, & time);
// time (secs) since last heartbeat
dt = (time.tv_sec - ctrl->heartbeat_time.tv_sec);
dt += (time.tv_nsec - ctrl->heartbeat_time.tv_nsec) / 1e9;
if (dt >= 0.25f) {
_controller_create_header(ctrl, header, & header_size);
// reset sample count
ctrl->heartbeat_num_samples = 0;
// update time
ctrl->heartbeat_time.tv_sec = time.tv_sec;
ctrl->heartbeat_time.tv_nsec = time.tv_nsec;
}
// give control to the scanner
scanner_execute(ctrl->scan, ctrl->dem, ctrl->r);
// block until new output is available
demod_pop_and_lock(ctrl->dem, & data, & data_len);
data_size = data_len * sizeof(int16_t);
// send to client
websocket_send(ctrl->ws, header, header_size, data, data_size);
demod_release(ctrl->dem);
// keep count
ctrl->heartbeat_num_samples += data_len;
}
/* example of creating all the demod-structure and tuner-structures and tuning them in diversity and start monitoring after that */
int main(int argc, char *argv[])
{
struct dibI2CAdapter *main_i2c = open_spp_i2c();
struct dibI2CAdapter *tuner_i2c[2];
struct dibDemod *demod[2];
struct dibTuner *tuner[2];
struct dibDemodMonitor mon[2];
struct dibDVBChannel ch;
DibZeroMemory(mon, sizeof(mon));
if (main_i2c == NULL)
return 1;
if (dib7000m_attach(main_i2c, 2, DEFAULT_DIB7000M_I2C_ADDRESS, 1, dib7000m_demod_config, demod) != 0) {
DibDbgPrint("-E- dib7000 attaching and i2c enumeration failed.\n");
exit(1);
}
tuner_i2c[0] = dib7000m_get_i2c_master(demod[0], DIBX000_I2C_INTERFACE_TUNER, 1);
if ((tuner[0] = env57h12d5_attach(tuner_i2c[0], &tuner_0_config)) == NULL) {
DibDbgPrint("-E- env57h12d5 -0- attaching failed.\n");
exit(1);
}
tuner_i2c[1] = dib7000m_get_i2c_master(demod[1], DIBX000_I2C_INTERFACE_TUNER, 1);
if ((tuner[1] = env57h12d5_attach(tuner_i2c[1], &tuner_1_config)) == NULL) {
DibDbgPrint("-E- env57h12d5 -1- attaching failed.\n");
exit(1);
}
INIT_DVB_CHANNEL(&ch);
ch.RF_kHz = 474000;
ch.Bw = INDEX_BW_8_0_MHZ;
tune_diversity_tuner_and_demod(tuner,demod,2,&ch);
DibDbgPrint("-I- Tuning done <enter>\n");
getchar();
while (1) {
demod_get_monitoring(demod[0], &mon[0]);
demod_get_monitoring(demod[1], &mon[1]);
dib7000_print_monitor(mon, NULL, 0, 2);
usleep(100000);
}
DibDbgPrint("-I- Cleaning up\n");
tuner_release(tuner[1]);
tuner_release(tuner[0]);
demod_release(demod[1]);
demod_release(demod[0]);
close_spp_i2c();
return 0;
}
/* example of creating all the demod-structure and tuner-structures and tuning them in diversity and start monitoring after that */
int main(int argc, char *argv[])
{
struct dibI2CAdapter *main_i2c = open_spp_i2c();
struct dibI2CAdapter *tuner_i2c[2];
struct dibDemod *demod[2];
struct dibTuner *tuner[2];
struct dibDemodMonitor mon[2];
struct dibDVBChannel ch;
DibZeroMemory(mon, sizeof(mon));
if (main_i2c == NULL)
return 1;
/* attach 2 demods, do i2c-enumeration */
if (dib7000p_attach(main_i2c, 2, DEFAULT_DIB7000P_I2C_ADDRESS, 1, dib7000p_example_board_config, demod) != 0) {
DibDbgPrint("-E- dib7000 attaching and i2c enumeration failed.\n");
exit(1);
}
/* first tuner */
tuner_i2c[0] = dib7000p_get_i2c_master(demod[0], DIBX000_I2C_INTERFACE_TUNER, 1);
if ((tuner[0] = env57h12d5_attach(tuner_i2c[0], &tuner_0_config)) == NULL) {
DibDbgPrint("-E- env57h12d5 -0- attaching failed.\n");
exit(1);
}
/* second tuner */
tuner_i2c[1] = dib7000p_get_i2c_master(demod[1], DIBX000_I2C_INTERFACE_TUNER, 1);
if ((tuner[1] = env57h12d5_attach(tuner_i2c[1], &tuner_1_config)) == NULL) {
DibDbgPrint("-E- env57h12d5 -1- attaching failed.\n");
exit(1);
}
INIT_DVB_CHANNEL(&ch);
ch.RF_kHz = 474000;
ch.Bw = INDEX_BW_8_0_MHZ;
/* tune the 2 demods and tuner to the channel "ch" */
tune_diversity_tuner_and_demod(tuner,demod,2,&ch);
DibDbgPrint("-I- Tuning done <enter>\n");
getchar();
while (1) {
/* get monitoring information for the first demod */
demod_get_monitoring(demod[0], &mon[0]);
/* get monitoring information for the second demod */
demod_get_monitoring(demod[1], &mon[1]);
/* display information for 2 demods */
dib7000_print_monitor(mon, NULL, 0, 2);
usleep(100000);
}
DibDbgPrint("-I- Cleaning up\n");
/* release the 2 tuners */
tuner_release(tuner[1]);
tuner_release(tuner[0]);
/* release the 2 demods */
demod_release(demod[1]);
demod_release(demod[0]);
close_spp_i2c();
return 0;
}
void frontend_unregister_demod(struct dibFrontend *fe)
{
demod_release(fe); fe->demod_info = fe->demod_priv = NULL;
}
