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mirror of https://github.com/Dejvino/pinephone-toolkit.git synced 2024-11-14 11:33:28 +00:00
This commit is contained in:
Dejvino 2020-05-30 20:29:11 +02:00
parent 3cbf9cf23f
commit 7802ec0c8d
3 changed files with 112 additions and 1 deletions

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@ -3,7 +3,7 @@ A collection of tools and utility apps for the PINE64 PinePhone.
## Components ## Components
### backlight ### backlight
Get / Set backlight brightness. Get / Set display backlight brightness.
``` ```
$ pptk-backlight get $ pptk-backlight get
@ -11,6 +11,19 @@ $ pptk-backlight get
$ pptk-backlight set 6 $ pptk-backlight set 6
``` ```
### led
Get / Set LED light level for the RGB indicator and the white flash light.
```
# Get red RGB indicator brightness
$ pptk-led get red
255
# Turn RED indicator OFF
$ pptk-led set red 0
# Turn FLASH light ON
$ pptk-led set flash 255
```
## Build & Install ## Build & Install
``` ```
$ meson build $ meson build

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@ -1,3 +1,5 @@
project('PinePhone Toolkit', 'c') project('PinePhone Toolkit', 'c')
executable('pptk-backlight', ['src/backlight.c'], executable('pptk-backlight', ['src/backlight.c'],
install: true, install_mode: ['rwsr-xr-x', 0, 0]) install: true, install_mode: ['rwsr-xr-x', 0, 0])
executable('pptk-led', ['src/led.c'],
install: true, install_mode: ['rwsr-xr-x', 0, 0])

96
src/led.c Normal file
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@ -0,0 +1,96 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
static char *argv0 = "./led";
static char *led_file_template = "/sys/class/leds/%s:%s/brightness";
void print_usage()
{
printf("usage: %s COMMAND COLOR [VALUE]\n", argv0);
printf(" COMMAND = {get, set}\n");
printf(" get ... prints LED level\n");
printf(" set ... sets LED level to VALUE\n");
printf(" COLOR = {red, green, blue, flash}\n");
printf(" red ... red:indicator LED\n");
printf(" green ... green:indicator LED\n");
printf(" blue ... blue:indicator LED\n");
printf(" flash ... white:flash LED\n");
printf(" VALUE = [0..255] ... light level\n");
}
void print_usage_and_fail()
{
print_usage();
exit(EXIT_FAILURE);
}
void command_get(char *filepath)
{
FILE *fp = fopen(filepath, "r");
if (fp == NULL) {
fprintf(stderr, "Cannot open file '%s' for reading.\n", filepath);
exit(EXIT_FAILURE);
}
int buffer_length = 255;
char buffer[buffer_length];
while (fgets(buffer, buffer_length, fp)) {
printf("%s", buffer);
}
fclose(fp);
}
void command_set(char *filepath, int value)
{
if (setuid(0)) {
fprintf(stderr, "Cannot set root permissions via setuid(0).\n");
exit(EXIT_FAILURE);
}
FILE *fp = fopen(filepath, "w+");
if (fp == NULL) {
fprintf(stderr, "Cannot open file '%s' for writing.\n", filepath);
exit(EXIT_FAILURE);
}
fprintf(fp, "%d\n", value);
fclose(fp);
}
int main(int argc, char *argv[])
{
if (argc < 1) {
print_usage_and_fail();
}
argv0 = argv[0];
if (argc < 3) {
print_usage_and_fail();
}
char *command = argv[1];
char *led = argv[2];
if (strcmp(led, "red") != 0
&& strcmp(led, "blue") != 0
&& strcmp(led, "green") != 0
&& strcmp(led, "flash")) {
print_usage_and_fail();
}
char *type = "indicator";
if (strcmp(led, "flash") == 0) {
led = "white";
type = "flash";
}
char filename[255];
sprintf(filename, led_file_template, led, type);
if ((strcmp(command, "get") == 0) && (argc == 3)) {
command_get(filename);
} else if ((strcmp(command, "set") == 0) && (argc == 4)) {
int value = atoi(argv[3]);
if (value < 0 || value > 255) {
print_usage_and_fail();
}
command_set(filename, value);
} else {
print_usage_and_fail();
}
exit(EXIT_SUCCESS);
}