int main(int argc, const char *argv[]){
printf("\n\n");
// Listen to SIGINT signals (program termination)
signal(SIGINT, signal_handler);
// Tell linux not to use the user leds in the board.
take_over_leds();
// Load device tree overlay to enable PRU hardware.
load_device_tree_overlay();
// Load and run binary into pru0
init_pru_program();
open_sound_file();
start_thread();
/* while(!finish){ */
sleep(5);
/* } */
prussdrv_pru_disable(PRU_NUM);
prussdrv_exit ();
stop_thread();
close_sound_file();
return 0;
}
int main(int argc, const char *argv[]){
printf("\n\n");
// Listen to SIGINT signals (program termination)
signal(SIGINT, signal_handler);
// Load device tree overlay to enable PRU hardware.
load_device_tree_overlay();
// Load and run binary into pru0
init_pru_program();
open_sound_file();
/* sleep(1); */
start_thread();
while(!finish){}
//sleep(500);
prussdrv_pru_disable(PRU_NUM);
prussdrv_exit ();
stop_thread();
close_sound_file();
// Calculate sample rate
/* int i; */
/* unsigned long sum = 0; */
/* for(i=0; i<times_count; i++){ */
/* sum += times[i]; */
/* } */
/* float avg = (float)sum / (float)times_count; */
/* printf("Freq: %f \n", 128.0*1000000.0/avg); */
return 0;
}
int main(int argc, char **argv)
{
int opt;
uint8_t bufferIndexPins;
uint8_t sampleRateOption;
pthread_t producer_thread, consumer_thread;
/*pointer to shared RAM*/
void *p;
struct sigaction signalaction;
memset(&signalaction, 0, sizeof(signalaction));
signalaction.sa_sigaction = &sighandler;
signalaction.sa_flags = SA_SIGINFO;
if (sigaction(SIGTERM, &signalaction, NULL) < 0
|| sigaction(SIGHUP, &signalaction, NULL) < 0
|| sigaction(SIGINT, &signalaction, NULL) < 0)
{
fprintf(stderr, "%s\n", strerror(errno));
return (-1);
}
if (argc == 1)
{
help(argv[0]);
return (-1);
}
sampleRateOption=0;
if (buffer_init(&dataCapturedValues, BUFFER_LENGTH) == -1)
{
return (-3);
}
init_channels();
while ((opt = getopt(argc, argv, "p:s:f:")) != -1)
{
switch (opt)
{
case 'p':
{
bufferIndexPins = atoi(optarg);
cfgPins[bufferIndexPins] = 1;
break;
}
case 's':
{
sampleRateOption = atoi(optarg);
break;
}
case 'f':
{
fd=open(optarg,O_WRONLY|O_CREAT,S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH);
if(fd==-1)
{
fprintf(stderr,"%s\n",strerror(errno));
fd=STDOUT_FILENO;
}
break;
}
default:
{
help(argv[0]);
buffer_destroy(&dataCapturedValues);
return (-5);
}
}
}
calculate_sample_period(sampleRateOption);
init_pru_program();
dbg("PRU program initialized...\n");
prussdrv_map_prumem(PRUSS0_SHARED_DATARAM, &p);
shared_ram=(unsigned int *)p;
dbg("PRU shared memory was mapped...\n");
shared_ram[0]=sample_delay;
shared_ram[1]=sample_delay>>8;
shared_ram[2]=sample_delay>>16;
shared_ram[3]=sample_delay>>24;
create_header(fd,sample_delay,cfgPins);
/*Initialize mutex and condition variables*/
pthread_mutex_init(&shared_var_mutex, NULL);
pthread_cond_init(&cond_consumer, NULL);
pthread_cond_init(&cond_producer, NULL);
dbg("Mutex and conditions were initialized...");
/*create threads*/
pthread_create(&consumer_thread, NULL, consumer, NULL);
pthread_create(&producer_thread, NULL, producer, NULL);
pthread_join(consumer_thread, NULL);
pthread_join(producer_thread, NULL);
/*Cleanup threads*/
pthread_mutex_destroy(&shared_var_mutex);
pthread_cond_destroy(&cond_consumer);
pthread_cond_destroy(&cond_producer);
close(fd);
prussdrv_pru_disable(PRU_NUM);
prussdrv_exit();
close(fd);
buffer_destroy(&dataCapturedValues);
return 0;
}
