Skip to main content

System Services Module

The system services module is one of the core components of ElenixOS, providing a series of system-level services and functions, including battery management, sensor management, etc. This module provides a unified service interface for applications and system components, simplifying access to hardware resources.

Directory Structure​

├── src/core/system/services/
│   ├── eos_services.c    # System services core implementation
│   ├── eos_services.h    # System services interface definition
│   ├── eos_sensor.c      # Sensor service implementation
│   └── eos_sensor.h      # Sensor service interface definition

Core Features​

Battery Service​

The battery service provides functionality to get battery level and charging status, providing battery-related information for applications.

Sensor Service​

The sensor service provides access and management functions for various sensors, including accelerometer, heart rate sensor, etc.

Service Startup and Management​

The system services module is responsible for starting and managing various system services, ensuring their normal operation.

Key Interfaces​

Battery Service Interfaces​

uint8_t eos_battery_service_get_level(void);
bool eos_battery_service_get_charging(void);
  • eos_battery_service_get_level：Get battery level, range 0-100
  • eos_battery_service_get_charging：Get battery charging status, returns true if charging

Sensor Service Interfaces​

The sensor service provides access and management functions for various sensors. For specific interfaces, please refer to the eos_sensor.h file.

Service Startup Interface​

void eos_services_start(void);
  • Start system services, initialize various service components

Implementation Details​

The core implementation of the system services module includes:

  1. Service initialization：Initialize various service components when the system starts
  2. Service management：Manage the lifecycle and status of services
  3. Hardware abstraction：Abstract hardware resources to provide a unified service interface
  4. Event notification：Notify relevant components when service status changes

This module works closely with the hardware layer to provide a unified service access interface for upper-level applications.

Usage Examples​

Get Battery Level​

uint8_t battery_level = eos_battery_service_get_level();
printf("Battery level: %d%%\n", battery_level);

Get Charging Status​

bool is_charging = eos_battery_service_get_charging();
if (is_charging) {
    printf("Battery is charging\n");
} else {
    printf("Battery is not charging\n");
}

Start System Services​

eos_services_start();

Service Architecture​

The system services module adopts a layered architecture:

  1. Service interface layer：Provide a unified service access interface
  2. Service implementation layer：Implement specific service functions
  3. Hardware adaptation layer：Adapt to different hardware platform implementations

This architectural design allows system services to maintain a consistent interface across different hardware platforms while providing optimized implementations for specific platforms.