refactor: rename fan control functions for clarity

Author: AhmedYasserrr

src/core/libectool.cc

@@ -142,7 +142,7 @@ bool is_on_ac() {
     return ac_present;
 }
 
-void pause_fan_control() {
+void auto_fan_control() {
     if (libectool_init() < 0)
         fprintf(stderr, "Failed initializing EC connection\n");
 
@@ -154,23 +154,23 @@ void pause_fan_control() {
     libectool_release();
 }
 
-void set_fan_speed(int speed) {
+void set_fan_duty(int duty) {
     if (libectool_init() < 0)
         fprintf(stderr, "Failed initializing EC connection\n");
 
     struct ec_params_pwm_set_fan_duty_v0 p_v0;
     int rv;
 
-    if (speed < 0 || speed > 100) {
-        fprintf(stderr, "Error: Fan speed must be between 0 and 100.\n");
+    if (duty < 0 || duty > 100) {
+        fprintf(stderr, "Error: Fan duty cycle must be between 0 and 100.\n");
         return;
     }
 
-    p_v0.percent = speed;
+    p_v0.percent = duty;
     rv = ec_command(EC_CMD_PWM_SET_FAN_DUTY, 0, &p_v0, sizeof(p_v0),
             NULL, 0);
     if (rv < 0)
-        fprintf(stderr, "Error: Can't set speed\n");
+        fprintf(stderr, "Error: Can't set duty cycle\n");
 
     libectool_release();
 }

src/core/libectool.h

@@ -13,8 +13,8 @@ void libectool_release();
 
 // API functions to expose
 bool is_on_ac();
-void pause_fan_control();
-void set_fan_speed(int speed);
+void auto_fan_control();
+void set_fan_duty(int duty);
 float get_max_temperature();
 float get_max_non_battery_temperature();
 

tests/test_libectool.c

@@ -34,13 +34,13 @@ int main() {
                 break;
             }
             case 2:
-                printf("Pausing fan control...\n");
-                pause_fan_control();
+                printf("Enable automatic fan control...\n");
+                auto_fan_control();
                 break;
             case 3:
                 printf("Enter fan speed (0-100): ");
                 if (scanf("%d", &speed) == 1) {
-                    set_fan_speed(speed);
+                    set_fan_duty(speed);
                 } else {
                     printf("Invalid speed.\n");
                     // clear invalid input