initial commit

build/Makefile

@@ -0,0 +1,23 @@
+# Variables
+CC = gcc
+CFLAGS = -Wall -I../include
+SRC = ../src
+OBJ = ../obj
+BIN = battery_saver
+OBJS = $(OBJ)/main.o $(OBJ)/cpu_control.o $(OBJ)/brightness_control.o $(OBJ)/service_control.o $(OBJ)/utils.o
+DEPS = ../include/cpu_control.h ../include/brightness_control.h ../include/service_control.h ../include/utils.h
+
+# Targets
+$(BIN): $(OBJS)
+	$(CC) $(CFLAGS) -o $(BIN) $(OBJS)
+
+$(OBJ)/%.o: $(SRC)/%.c $(DEPS)
+	mkdir -p $(OBJ)
+	$(CC) $(CFLAGS) -c $< -o $@
+
+# Clean up build
+clean:
+	rm -rf $(OBJ)/*.o $(BIN)
+
+# Phony targets
+.PHONY: clean

include/brightness_control.h

@@ -0,0 +1,6 @@
+#ifndef BRIGHTNESS_CONTROL_H
+#define BRIGHTNESS_CONTROL_H
+
+int adjust_brightness(int value);
+
+#endif

include/cpu_control.h

@@ -0,0 +1,6 @@
+#ifndef CPU_CONTROL_H
+#define CPU_CONTROL_H
+
+void set_cpu_governor(const char *governor);
+
+#endif

include/service_control.h

@@ -0,0 +1,7 @@
+#ifndef SERVICE_CONTROL_H
+#define SERVICE_CONTROL_H
+
+int disable_services();
+int enable_services();
+
+#endif

include/utils.h

@@ -0,0 +1,8 @@
+#ifndef UTILS_H
+#define UTILS_H
+
+void log_status(const char *message);
+void print_status();
+
+#endif
+

src/brightness_control.c

@@ -0,0 +1,16 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include "brightness_control.h"
+
+int adjust_brightness(int value) {
+    FILE *brightness = fopen("/sys/class/backlight/intel_backlight/brightness", "w");
+    if (brightness) {
+        fprintf(brightness, "%d", value);
+        fclose(brightness);
+        return 0;
+    } else {
+        perror("Failed to adjust brightness");
+        return 1;
+    }
+}
+

src/cpu_control.c

@@ -0,0 +1,19 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>  // Add this for sysconf()
+#include "cpu_control.h"
+
+void set_cpu_governor(const char *governor) {
+    int cpu_count = sysconf(_SC_NPROCESSORS_ONLN);
+    for (int i = 0; i < cpu_count; i++) {
+        char path[64];
+        sprintf(path, "/sys/devices/system/cpu/cpu%d/cpufreq/scaling_governor", i);
+        FILE *f = fopen(path, "w");
+        if (f) {
+            fprintf(f, "%s", governor);
+            fclose(f);
+        } else {
+            perror("Failed to set CPU governor");
+        }
+    }
+}

src/main.c

@@ -0,0 +1,59 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <getopt.h>
+#include "cpu_control.h"
+#include "brightness_control.h"
+#include "service_control.h"
+#include "utils.h"
+
+void print_usage() {
+    printf("Usage: battery_saver --enable | --disable | --status\n");
+    printf("--enable   : Enable battery saving mode\n");
+    printf("--disable  : Disable battery saving mode and restore settings\n");
+    printf("--status   : Display current battery saving mode status\n");
+}
+
+int main(int argc, char *argv[]) {
+    int opt;
+    int enable = 0, disable = 0, status = 0;
+
+    struct option long_options[] = {
+        {"enable", no_argument, &enable, 1},
+        {"disable", no_argument, &disable, 1},
+        {"status", no_argument, &status, 1},
+        {0, 0, 0, 0}
+    };
+
+    if (argc < 2) {
+        print_usage();
+        return 1;
+    }
+
+    while ((opt = getopt_long(argc, argv, "", long_options, NULL)) != -1) {
+        if (opt == '?') {
+            print_usage();
+            return 1;
+        }
+    }
+
+    if (enable) {
+        set_cpu_governor("powersave");
+        adjust_brightness(20);  // Set to 20% brightness
+        disable_services();
+        log_status("Battery saving mode enabled.");
+        printf("Battery saving mode enabled.\n");
+    } else if (disable) {
+        set_cpu_governor("ondemand");
+        adjust_brightness(100);  // Restore brightness to 100%
+        enable_services();
+        log_status("Battery saving mode disabled.");
+        printf("Battery saving mode disabled.\n");
+    } else if (status) {
+        print_status();
+    } else {
+        print_usage();  // Fallback to usage message if no valid option
+        return 1;
+    }
+
+    return 0;
+}

src/service_control.c

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+#include <stdio.h>
+#include <stdlib.h>
+#include "service_control.h"
+
+int disable_services() {
+    return system("nmcli radio wifi off && rfkill block bluetooth");
+}
+
+int enable_services() {
+    return system("nmcli radio wifi on && rfkill unblock bluetooth");
+}

src/utils.c

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+#include <stdio.h>
+#include <stdlib.h>
+#include "utils.h"
+
+void log_status(const char *message) {
+    FILE *logfile = fopen("/var/log/battery_saver.log", "a");
+    if (logfile) {
+        fprintf(logfile, "%s\n", message);
+        fclose(logfile);
+    } else {
+        perror("Failed to write to log");
+    }
+}
+
+void print_status() {
+    printf("CPU Governor: ");
+    system("cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor");
+    printf("Brightness: ");
+    system("cat /sys/class/backlight/intel_backlight/brightness");
+    printf("WiFi Status: ");
+    system("nmcli radio wifi");
+}
+
+