kamp/PiLEDlights
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Update ssdled.c

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multiuse für heartbeat etc
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manuelkamp 2021-12-21 22:59:40 +01:00 committed by GitHub
parent 9f56ca4e59
commit c34800ce14
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 80 additions and 8 deletions
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88
ssdled.c
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@ -65,7 +65,9 @@
static unsigned int o_refresh = 20; /* milliseconds */ static unsigned int o_refresh = 20; /* milliseconds */
static unsigned int o_gpiopin = 4; /* BCM numbering scheme */ static unsigned int o_gpiopin = 20; /* BCM numbering scheme - gelbe LED*/
static unsigned int o_gpiopin_kernel = 21; /* grüne LED */
static unsigned int o_gpiopin_heartbeat = 26; /* blaue LED */
static int o_detach = 0; static int o_detach = 0;
static volatile sig_atomic_t running = 1; static volatile sig_atomic_t running = 1;
@ -133,6 +135,67 @@ void led(int on) {
current = on; current = on;
} }
/* Update the Kernel-LED */
void kernel_led(int on) {
static int kernel_current = 1; /* Ensure the LED turns off on first call */
if (kernel_current == on)
return;
if (on) {
gpioWrite( o_gpiopin_kernel, PI_HIGH );
} else {
gpioWrite( o_gpiopin_kernel, PI_LOW );
}
kernel_current = on;
}
/* Update the Heartbeat-LED */
void heartbeat_led(int on) {
static int heartbeat_current = 1; /* Ensure the LED turns off on first call */
if (heartbeat_current == on)
return;
if (on) {
gpioWrite( o_gpiopin_heartbeat, PI_HIGH );
} else {
gpioWrite( o_gpiopin_heartbeat, PI_LOW );
}
heartbeat_current = on;
}
int kernelloaded() {
kernel_led( PI_HIGH );
return 0;
}
int heartbeat() {
/* gpioSetPWMfrequency(26, 1000);
gpioSetPWMrange(26, 255);
while (1) {
for (int i = 0; i < 255; i++) {
gpioPWM(26, i);
usleep(1E4);
}
for (int i = 255; i > 0; i--) {
gpioPWM(26, i);
usleep(1E4);
}
}*/
if(0 == system("pgrep plexmediaserver > /dev/null") && 0 == system("pgrep smbd > /dev/null")) {
heartbeat_led( PI_HIGH );
}
else {
heartbeat_led( PI_LOW );
}
return 0;
}
/* Signal handler -- break out of the main loop */ /* Signal handler -- break out of the main loop */
void shutdown(int sig) { void shutdown(int sig) {
running = 0; running = 0;
@ -163,7 +226,7 @@ error_t parse_options(int key, char *arg, struct argp_state *state) {
int main(int argc, char **argv) { int main(int argc, char **argv) {
struct argp_option options[] = { struct argp_option options[] = {
{ "detach", 'd', NULL, 0, "Detach from terminal" }, { "detach", 'd', NULL, 0, "Detach from terminal" },
{ "pin", 'p', "VALUE", 0, "GPIO pin where LED is connected (default: BCM 4, physical pin 7 on the P1 header)" }, { "pin", 'p', "VALUE", 0, "GPIO pin where SSD LED is connected (default: BCM 4, physical pin 7 on the P1 header)" },
{ "refresh", 'r', "VALUE", 0, "Refresh interval (default: 20 ms)" }, { "refresh", 'r', "VALUE", 0, "Refresh interval (default: 20 ms)" },
{ 0 }, { 0 },
}; };
@ -185,11 +248,13 @@ int main(int argc, char **argv) {
delay.tv_nsec = 1000000 * (o_refresh % 1000); delay.tv_nsec = 1000000 * (o_refresh % 1000);
/* If we can't set up pigpio, then just bail */ /* If we can't set up pigpio, then just bail */
if( gpioInitialise() < 0 ) { if( gpioInitialise() < 0 ) {
fprintf( stderr, "Unable to setup the piGPIO library. STOP." ); fprintf( stderr, "Unable to setup the piGPIO library. STOP." );
return -1; return -1;
} }
gpioSetMode( o_gpiopin, PI_OUTPUT ); gpioSetMode( o_gpiopin, PI_OUTPUT );
gpioSetMode( o_gpiopin_kernel, PI_OUTPUT );
gpioSetMode( o_gpiopin_heartbeat, PI_OUTPUT );
/* Open the vmstat file */ /* Open the vmstat file */
@ -201,6 +266,8 @@ int main(int argc, char **argv) {
/* Ensure the LED is off */ /* Ensure the LED is off */
led(0); led(0);
kernel_led(0);
heartbeat_led(0);
/* Save the current I/O stat values */ /* Save the current I/O stat values */
if (activity(vmstat) < 0) if (activity(vmstat) < 0)
@ -241,10 +308,16 @@ int main(int argc, char **argv) {
if (a < 0) if (a < 0)
break; break;
led(a); led(a);
if( kernelloaded() < 0 )
break;
if( heartbeat() < 0 )
break;
} }
/* Ensure the LED is off */ /* Ensure the LED is off */
led(0); led(0);
kernel_led(0);
heartbeat_led(0);
/* Halt any library functions */ /* Halt any library functions */
gpioTerminate(); gpioTerminate();
@ -256,4 +329,3 @@ out:
if (vmstat) fclose(vmstat); if (vmstat) fclose(vmstat);
return status; return status;
} }