/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : hal_can.c
  * @brief          : CAN hardware abstraction layer source file
  ******************************************************************************
  */
/* USER CODE END Header */

#include "hal.h"
#include "hal_can.h"

/**
 * @brief Initialize CAN hardware
 * @param config: CAN configuration structure
 * @retval HAL status code
 */
hal_status_t hal_can_init(const hal_can_config_t *config) {
    if (config == NULL) {
        return HAL_INVALID_PARAM;
    }
    
    if (config->instance >= HAL_CAN_INSTANCE_MAX) {
        return HAL_INVALID_PARAM;
    }
    
    /* Call architecture specific CAN initialization */
#if HAL_TARGET_ARCH == HAL_ARCH_STM32F1
    /* TODO: Implement STM32F1 CAN initialization */
    return HAL_OK;
#elif HAL_TARGET_ARCH == HAL_ARCH_STM32F4
    /* TODO: Implement STM32F4 CAN initialization */
    return HAL_OK;
#elif HAL_TARGET_ARCH == HAL_ARCH_STM32F7
    /* TODO: Implement STM32F7 CAN initialization */
    return HAL_OK;
#elif HAL_TARGET_ARCH == HAL_ARCH_STM32L4
    /* TODO: Implement STM32L4 CAN initialization */
    return HAL_OK;
#else
#error "Unsupported HAL architecture"
    return HAL_ERROR;
#endif
}

/**
 * @brief Deinitialize CAN hardware
 * @param instance: CAN instance identifier
 * @retval HAL status code
 */
hal_status_t hal_can_deinit(hal_can_instance_t instance) {
    if (instance >= HAL_CAN_INSTANCE_MAX) {
        return HAL_INVALID_PARAM;
    }
    
    /* Call architecture specific CAN deinitialization */
#if HAL_TARGET_ARCH == HAL_ARCH_STM32F1
    /* TODO: Implement STM32F1 CAN deinitialization */
    return HAL_OK;
#elif HAL_TARGET_ARCH == HAL_ARCH_STM32F4
    /* TODO: Implement STM32F4 CAN deinitialization */
    return HAL_OK;
#elif HAL_TARGET_ARCH == HAL_ARCH_STM32F7
    /* TODO: Implement STM32F7 CAN deinitialization */
    return HAL_OK;
#elif HAL_TARGET_ARCH == HAL_ARCH_STM32L4
    /* TODO: Implement STM32L4 CAN deinitialization */
    return HAL_OK;
#else
#error "Unsupported HAL architecture"
    return HAL_ERROR;
#endif
}

/**
 * @brief Start CAN peripheral
 * @param instance: CAN instance identifier
 * @retval HAL status code
 */
hal_status_t hal_can_start(hal_can_instance_t instance) {
    if (instance >= HAL_CAN_INSTANCE_MAX) {
        return HAL_INVALID_PARAM;
    }
    
    /* Call architecture specific CAN start implementation */
#if HAL_TARGET_ARCH == HAL_ARCH_STM32F1
    /* TODO: Implement STM32F1 CAN start */
    return HAL_OK;
#elif HAL_TARGET_ARCH == HAL_ARCH_STM32F4
    /* TODO: Implement STM32F4 CAN start */
    return HAL_OK;
#elif HAL_TARGET_ARCH == HAL_ARCH_STM32F7
    /* TODO: Implement STM32F7 CAN start */
    return HAL_OK;
#elif HAL_TARGET_ARCH == HAL_ARCH_STM32L4
    /* TODO: Implement STM32L4 CAN start */
    return HAL_OK;
#else
#error "Unsupported HAL architecture"
    return HAL_ERROR;
#endif
}

/**
 * @brief Stop CAN peripheral
 * @param instance: CAN instance identifier
 * @retval HAL status code
 */
hal_status_t hal_can_stop(hal_can_instance_t instance) {
    if (instance >= HAL_CAN_INSTANCE_MAX) {
        return HAL_INVALID_PARAM;
    }
    
    /* Call architecture specific CAN stop implementation */
#if HAL_TARGET_ARCH == HAL_ARCH_STM32F1
    /* TODO: Implement STM32F1 CAN stop */
    return HAL_OK;
#elif HAL_TARGET_ARCH == HAL_ARCH_STM32F4
    /* TODO: Implement STM32F4 CAN stop */
    return HAL_OK;
#elif HAL_TARGET_ARCH == HAL_ARCH_STM32F7
    /* TODO: Implement STM32F7 CAN stop */
    return HAL_OK;
#elif HAL_TARGET_ARCH == HAL_ARCH_STM32L4
    /* TODO: Implement STM32L4 CAN stop */
    return HAL_OK;
#else
#error "Unsupported HAL architecture"
    return HAL_ERROR;
#endif
}

/**
 * @brief Send CAN message
 * @param instance: CAN instance identifier
 * @param message: Pointer to CAN message structure
 * @param timeout: Timeout in milliseconds
 * @retval HAL status code
 */
hal_status_t hal_can_send(hal_can_instance_t instance, const hal_can_message_t *message, uint32_t timeout) {
    if (message == NULL) {
        return HAL_INVALID_PARAM;
    }
    
    if (instance >= HAL_CAN_INSTANCE_MAX) {
        return HAL_INVALID_PARAM;
    }
    
    /* Call architecture specific CAN send implementation */
#if HAL_TARGET_ARCH == HAL_ARCH_STM32F1
    /* TODO: Implement STM32F1 CAN send */
    return HAL_OK;
#elif HAL_TARGET_ARCH == HAL_ARCH_STM32F4
    /* TODO: Implement STM32F4 CAN send */
    return HAL_OK;
#elif HAL_TARGET_ARCH == HAL_ARCH_STM32F7
    /* TODO: Implement STM32F7 CAN send */
    return HAL_OK;
#elif HAL_TARGET_ARCH == HAL_ARCH_STM32L4
    /* TODO: Implement STM32L4 CAN send */
    return HAL_OK;
#else
#error "Unsupported HAL architecture"
    return HAL_ERROR;
#endif
}

/**
 * @brief Receive CAN message
 * @param instance: CAN instance identifier
 * @param fifo: FIFO number (0 or 1)
 * @param message: Pointer to CAN message structure
 * @param timeout: Timeout in milliseconds
 * @retval HAL status code
 */
hal_status_t hal_can_receive(hal_can_instance_t instance, uint8_t fifo, hal_can_message_t *message, uint32_t timeout) {
    if (message == NULL || fifo > 1) {
        return HAL_INVALID_PARAM;
    }
    
    if (instance >= HAL_CAN_INSTANCE_MAX) {
        return HAL_INVALID_PARAM;
    }
    
    /* Call architecture specific CAN receive implementation */
#if HAL_TARGET_ARCH == HAL_ARCH_STM32F1
    /* TODO: Implement STM32F1 CAN receive */
    return HAL_OK;
#elif HAL_TARGET_ARCH == HAL_ARCH_STM32F4
    /* TODO: Implement STM32F4 CAN receive */
    return HAL_OK;
#elif HAL_TARGET_ARCH == HAL_ARCH_STM32F7
    /* TODO: Implement STM32F7 CAN receive */
    return HAL_OK;
#elif HAL_TARGET_ARCH == HAL_ARCH_STM32L4
    /* TODO: Implement STM32L4 CAN receive */
    return HAL_OK;
#else
#error "Unsupported HAL architecture"
    return HAL_ERROR;
#endif
}

/**
 * @brief Get CAN receive FIFO message pending count
 * @param instance: CAN instance identifier
 * @param fifo: FIFO number (0 or 1)
 * @param count: Pointer to store pending message count
 * @retval HAL status code
 */
hal_status_t hal_can_get_pending_count(hal_can_instance_t instance, uint8_t fifo, uint8_t *count) {
    if (count == NULL || fifo > 1) {
        return HAL_INVALID_PARAM;
    }
    
    if (instance >= HAL_CAN_INSTANCE_MAX) {
        return HAL_INVALID_PARAM;
    }
    
    /* Call architecture specific CAN get pending count implementation */
#if HAL_TARGET_ARCH == HAL_ARCH_STM32F1
    /* TODO: Implement STM32F1 CAN get pending count */
    *count = 0;
    return HAL_OK;
#elif HAL_TARGET_ARCH == HAL_ARCH_STM32F4
    /* TODO: Implement STM32F4 CAN get pending count */
    *count = 0;
    return HAL_OK;
#elif HAL_TARGET_ARCH == HAL_ARCH_STM32F7
    /* TODO: Implement STM32F7 CAN get pending count */
    *count = 0;
    return HAL_OK;
#elif HAL_TARGET_ARCH == HAL_ARCH_STM32L4
    /* TODO: Implement STM32L4 CAN get pending count */
    *count = 0;
    return HAL_OK;
#else
#error "Unsupported HAL architecture"
    return HAL_ERROR;
#endif
}

/**
 * @brief Configure CAN filter
 * @param instance: CAN instance identifier
 * @param filter_config: Pointer to CAN filter configuration structure
 * @retval HAL status code
 */
hal_status_t hal_can_configure_filter(hal_can_instance_t instance, const hal_can_filter_config_t *filter_config) {
    if (filter_config == NULL) {
        return HAL_INVALID_PARAM;
    }
    
    if (instance >= HAL_CAN_INSTANCE_MAX) {
        return HAL_INVALID_PARAM;
    }
    
    /* Call architecture specific CAN filter configuration implementation */
#if HAL_TARGET_ARCH == HAL_ARCH_STM32F1
    /* TODO: Implement STM32F1 CAN filter configuration */
    return HAL_OK;
#elif HAL_TARGET_ARCH == HAL_ARCH_STM32F4
    /* TODO: Implement STM32F4 CAN filter configuration */
    return HAL_OK;
#elif HAL_TARGET_ARCH == HAL_ARCH_STM32F7
    /* TODO: Implement STM32F7 CAN filter configuration */
    return HAL_OK;
#elif HAL_TARGET_ARCH == HAL_ARCH_STM32L4
    /* TODO: Implement STM32L4 CAN filter configuration */
    return HAL_OK;
#else
#error "Unsupported HAL architecture"
    return HAL_ERROR;
#endif
}