#ifndef __EMMC_DRIVER_H
#define __EMMC_DRIVER_H

#ifdef __cplusplus
extern "C" {
#endif

#include ARCH_HEADER
#include ARCH_HAL_HEADER

/**
  * @brief  SD status structure definition
  */
#define MSD_OK                        	((uint8_t)0x00)
#define MSD_ERROR                     	((uint8_t)0x01)
#define MSD_ERROR_SD_NOT_PRESENT     	((uint8_t)0x02)


#define SD_PRESENT               		((uint8_t)0x01)
#define SD_NOT_PRESENT           		((uint8_t)0x00)

#define SD_CMD_SWITCH  ((uint8_t)6)
#define SD_CMD_SWITCH_WRITE_BYTE       ((uint32_t)3)
#define SD_ECSD_BUS_WIDTH              ((uint32_t)183)
#define SD_ECSD_BUS_WIDTH_8B           ((uint32_t)2)

#define OCR_READY                      ((uint32_t)0x80000000)
#define SD_CARD_LOCKED                 ((uint32_t)0x02000000)
#define SD_DATATIMEOUT                 ((uint32_t)100000000)


/*
 * @brief: DMA definitions for SD DMA transfer
 * */
#define __DMAx_TxRx_CLK_ENABLE            __HAL_RCC_DMA2_CLK_ENABLE
#define SD_DMAx_Tx_CHANNEL                DMA_CHANNEL_4
#define SD_DMAx_Rx_CHANNEL                DMA_CHANNEL_4
#define SD_DMAx_Tx_STREAM                 DMA2_Stream6
#define SD_DMAx_Rx_STREAM                 DMA2_Stream3
#define SD_DMAx_Tx_IRQn                   DMA2_Stream6_IRQn
#define SD_DMAx_Rx_IRQn                   DMA2_Stream3_IRQn
#define SD_DMAx_Tx_IRQHandler             DMA2_Stream6_IRQHandler
#define SD_DMAx_Rx_IRQHandler             DMA2_Stream3_IRQHandler

/*
* @brief: EMMC functions
* */
uint8_t emmc_init(void);
uint8_t emmc_deinit(void);
uint8_t emmc_read_blocks(uint32_t *pData, uint64_t ReadAddr, uint32_t BlockSize, uint32_t NumOfBlocks);
uint8_t emmc_write_blocks(uint32_t *pData, uint64_t WriteAddr, uint32_t BlockSize, uint32_t NumOfBlocks);
uint8_t emmc_read_blocks_dma(uint32_t *pData, uint64_t ReadAddr, uint32_t BlockSize, uint32_t NumOfBlocks);
uint8_t emmc_write_blocks_dma(uint32_t *pData, uint64_t WriteAddr, uint32_t BlockSize, uint32_t NumOfBlocks);
uint8_t emmc_erase(uint64_t StartAddr, uint64_t EndAddr);
void    SD_DMAx_Tx_IRQHandler(void);
void    SD_DMAx_Rx_IRQHandler(void);
HAL_SD_TransferStateTypedef emmc_get_status(void);
HAL_SD_ErrorTypedef    		emmc_get_info(HAL_SD_CardInfoTypedef *CardInfo);

// These functions can be modified in case the current settings (e.g. DMA stream) need to be changed for specific application needs
void 	emmc_msp_init(SD_HandleTypeDef *hsd, void *Params);
void    emmc_msp_deinit(SD_HandleTypeDef *hsd, void *Params);

#ifdef __cplusplus
}
#endif

#endif /* __EMMC_DRIVER_H */