/**
  ******************************************************************************
  * @file    air001xx_ll_utils.h
  * @author  MCU Application Team
  * @brief   Header file of UTILS LL module.
  @verbatim
  ==============================================================================
                     ##### How to use this driver #####
  ==============================================================================
    [..]
    The LL UTILS driver contains a set of generic APIs that can be
    used by user:
      (+) Device electronic signature
      (+) Timing functions
      (+) PLL configuration functions

  @endverbatim
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) AirM2M.
  * All rights reserved.</center></h2>
  *
  * <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under BSD 3-Clause license,
  * the "License"; You may not use this file except in compliance with the
  * License. You may obtain a copy of the License at:
  *                        opensource.org/licenses/BSD-3-Clause
  *
  ******************************************************************************
  */

/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef AIR001XX_LL_UTILS_H
#define AIR001XX_LL_UTILS_H

#ifdef __cplusplus
extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/
#include "air001xx.h"

/** @addtogroup AIR001XX_LL_Driver
  * @{
  */

/** @defgroup UTILS_LL UTILS
  * @{
  */

/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/

/* Private constants ---------------------------------------------------------*/
/** @defgroup UTILS_LL_Private_Constants UTILS Private Constants
  * @{
  */

/* Max delay can be used in LL_mDelay */
#define LL_MAX_DELAY                  0xFFFFFFFFU

/**
 * @brief Unique device ID register base address
 */
#define UID_BASE_ADDRESS              UID_BASE

/**
 * @brief Flash size data register base address
 */
#define FLASHSIZE_BASE_ADDRESS        FLASHSIZE_BASE

/**
  * @}
  */

/* Private macros ------------------------------------------------------------*/
/** @defgroup UTILS_LL_Private_Macros UTILS Private Macros
  * @{
  */
/**
  * @}
  */
/* Exported types ------------------------------------------------------------*/
/** @defgroup UTILS_LL_ES_INIT UTILS Exported structures
  * @{
  */
/**
  * @brief  UTILS System, AHB and APB1 buses clock configuration structure definition
  */
typedef struct
{
  uint32_t AHBCLKDivider;         /*!< The AHB clock (HCLK) divider. This clock is derived from the system clock (SYSCLK).
                                       This parameter can be a value of @ref RCC_LL_EC_SYSCLK_DIV

                                       This feature can be modified afterwards using unitary function
                                       @ref LL_RCC_SetAHBPrescaler(). */

  uint32_t APB1CLKDivider;         /*!< The APB1 clock (PCLK1) divider. This clock is derived from the AHB clock (HCLK).
                                       This parameter can be a value of @ref RCC_LL_EC_APB1_DIV

                                       This feature can be modified afterwards using unitary function
                                       @ref LL_RCC_SetAPB1Prescaler(). */
} LL_UTILS_ClkInitTypeDef;

/**
  * @}
  */

/* Exported constants --------------------------------------------------------*/
/** @defgroup UTILS_LL_Exported_Constants UTILS Exported Constants
  * @{
  */

/** @defgroup UTILS_EC_HSE_BYPASS HSE Bypass activation
  * @{
  */
#define LL_UTILS_HSEBYPASS_OFF        0x00000000U       /*!< HSE Bypass is not enabled                */
#define LL_UTILS_HSEBYPASS_ON         0x00000001U       /*!< HSE Bypass is enabled                    */
/**
  * @}
  */

/**
  * @}
  */

/* Exported macro ------------------------------------------------------------*/

/* Exported functions --------------------------------------------------------*/
/** @defgroup UTILS_LL_Exported_Functions UTILS Exported Functions
  * @{
  */

/** @defgroup UTILS_EF_DEVICE_ELECTRONIC_SIGNATURE DEVICE ELECTRONIC SIGNATURE
  * @{
  */

/**
  * @brief  Get Word0 of the unique device identifier (UID based on 96 bits)
  * @retval UID[31:0]
  */
__STATIC_INLINE uint32_t LL_GetUID_Word0(void)
{
  return (uint32_t)(READ_REG(*((uint32_t *)UID_BASE_ADDRESS)));
}

/**
  * @brief  Get Word1 of the unique device identifier (UID based on 96 bits)
  * @retval UID[63:32]
  */
__STATIC_INLINE uint32_t LL_GetUID_Word1(void)
{
  return (uint32_t)(READ_REG(*((uint32_t *)(UID_BASE_ADDRESS + 4U))));
}

/**
  * @brief  Get Word2 of the unique device identifier (UID based on 96 bits)
  * @retval UID[95:64]
  */
__STATIC_INLINE uint32_t LL_GetUID_Word2(void)
{
  return (uint32_t)(READ_REG(*((uint32_t *)(UID_BASE_ADDRESS + 8U))));
}

/**
  * @brief  Get Flash memory size
  * @retval Flash memory size(Bytes)
  */
__STATIC_INLINE uint32_t LL_GetFlashSize(void)
{
  return (uint32_t)(FLASH_SIZE);
}

/**
  * @brief  Get SRAM memory size
  * @retval SRAM memory size(Bytes)
  */
__STATIC_INLINE uint32_t LL_GetSramSize(void)
{
  return (uint32_t)(SRAM_END - SRAM_BASE + 1);
}

/**
  * @}
  */

/** @defgroup UTILS_LL_EF_DELAY DELAY
  * @{
  */

/**
  * @brief  This function configures the Cortex-M SysTick source of the time base.
  * @param  HCLKFrequency HCLK frequency in Hz (can be calculated thanks to RCC helper macro)
  * @note   When a RTOS is used, it is recommended to avoid changing the SysTick
  *         configuration by calling this function, for a delay use rather osDelay RTOS service.
  * @param  Ticks Number of ticks
  * @retval None
  */
__STATIC_INLINE void LL_InitTick(uint32_t HCLKFrequency, uint32_t Ticks)
{
  /* Configure the SysTick to have interrupt in 1ms time base */
  SysTick->LOAD  = (uint32_t)((HCLKFrequency / Ticks) - 1UL);  /* set reload register */
  SysTick->VAL   = 0UL;                                       /* Load the SysTick Counter Value */
  SysTick->CTRL  = SysTick_CTRL_CLKSOURCE_Msk |
                   SysTick_CTRL_ENABLE_Msk;                   /* Enable the Systick Timer */
}

void        LL_Init1msTick(uint32_t HCLKFrequency);
void        LL_mDelay(uint32_t Delay);

/**
  * @}
  */

/** @defgroup UTILS_EF_SYSTEM SYSTEM
  * @{
  */

void        LL_SetSystemCoreClock(uint32_t HCLKFrequency);
#if defined(RCC_PLL_SUPPORT)
ErrorStatus LL_PLL_ConfigSystemClock_HSI(LL_UTILS_ClkInitTypeDef *UTILS_ClkInitStruct);
ErrorStatus LL_PLL_ConfigSystemClock_HSE(uint32_t HSEFrequency, uint32_t HSEBypass,
    LL_UTILS_ClkInitTypeDef *UTILS_ClkInitStruct);
#endif
ErrorStatus LL_SetFlashLatency(uint32_t HCLKFrequency);

/**
  * @}
  */

/**
  * @}
  */

/**
  * @}
  */

/**
  * @}
  */

#ifdef __cplusplus
}
#endif

#endif /* AIR001XX_LL_UTILS_H */

/************************ (C) COPYRIGHT AirM2M *****END OF FILE****/
