Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) #include <stdio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) #include <limits.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) #include <string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) #include <stdlib.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) #include "spark.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) #include "stat.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) #define SPARK_SHIFT 8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) /* Print spark lines on outf for numval values in val. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) int print_spark(char *bf, int size, unsigned long *val, int numval)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 	static const char *ticks[NUM_SPARKS] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 		"▁",  "▂", "▃", "▄", "▅", "▆", "▇", "█"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 	};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 	int i, printed = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	unsigned long min = ULONG_MAX, max = 0, f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	for (i = 0; i < numval; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 		if (val[i] < min)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 			min = val[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 		if (val[i] > max)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 			max = val[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	f = ((max - min) << SPARK_SHIFT) / (NUM_SPARKS - 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	if (f < 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 		f = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	for (i = 0; i < numval; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 		printed += scnprintf(bf + printed, size - printed, "%s",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 				     ticks[((val[i] - min) << SPARK_SHIFT) / f]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	return printed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) }