Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
33 lines
775 B
C
33 lines
775 B
C
// SPDX-License-Identifier: GPL-2.0
|
|
#include "spark.h"
|
|
#include <limits.h>
|
|
#include <linux/kernel.h>
|
|
|
|
#define SPARK_SHIFT 8
|
|
|
|
/* Print spark lines on outf for numval values in val. */
|
|
int print_spark(char *bf, int size, unsigned long *val, int numval)
|
|
{
|
|
static const char *ticks[NUM_SPARKS] = {
|
|
"▁", "▂", "▃", "▄", "▅", "▆", "▇", "█"
|
|
};
|
|
int i, printed = 0;
|
|
unsigned long min = ULONG_MAX, max = 0, f;
|
|
|
|
for (i = 0; i < numval; i++) {
|
|
if (val[i] < min)
|
|
min = val[i];
|
|
if (val[i] > max)
|
|
max = val[i];
|
|
}
|
|
f = ((max - min) << SPARK_SHIFT) / (NUM_SPARKS - 1);
|
|
if (f < 1)
|
|
f = 1;
|
|
for (i = 0; i < numval; i++) {
|
|
printed += scnprintf(bf + printed, size - printed, "%s",
|
|
ticks[((val[i] - min) << SPARK_SHIFT) / f]);
|
|
}
|
|
|
|
return printed;
|
|
}
|