79 lines
3.1 KiB
C
79 lines
3.1 KiB
C
/***************************************************************************//**
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* @file drv_sdcard.h
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* @brief Memory card driver (SPI mode) of RT-Thread RTOS for using EFM32
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* USART module
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* COPYRIGHT (C) 2012, RT-Thread Development Team
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* @author onelife
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* @version 1.0
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*******************************************************************************
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* @section License
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* The license and distribution terms for this file may be found in the file
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* LICENSE in this distribution or at http://www.rt-thread.org/license/LICENSE
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*******************************************************************************
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* @section Change Logs
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* Date Author Notes
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* 2011-05-13 onelife Initial creation for using EFM32 USART module
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* 2011-07-07 onelife Modify initialization function to return error code
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******************************************************************************/
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#ifndef __DEV_SDCARD_H__
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#define __DEV_SDCARD_H__
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/* Includes ------------------------------------------------------------------*/
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/* Exported types ------------------------------------------------------------*/
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/* Exported constants --------------------------------------------------------*/
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/* Exported macro ------------------------------------------------------------*/
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#define EFM32_SDCLK_LOW (100000)
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#if defined(EFM32_GXXX_DK)
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#define EFM32_SDCLK_HIGH (16000000)
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#elif defined(EFM32GG_DK3750)
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#define EFM32_SDCLK_HIGH (19000000)
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#endif
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#if (EFM32_SDCLK_HIGH > (EFM32_HFXO_FREQUENCY/2))
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#error "EFM32 SPI clock should not be more than (EFM32_HFXO_FREQUENCY/2)"
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#endif
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#define SD_SPEED_LOW (0)
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#define SD_SPEED_HIGH (1)
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#define SD_WAIT_PERIOD (RT_TICK_PER_SECOND)
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#define SD_SECTOR_SIZE_SHIFT (9)
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#define SD_SECTOR_SIZE (1 << SD_SECTOR_SIZE_SHIFT)
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#define SD_BLOCK_SIZE_CSD (16)
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#define SD_BLOCK_SIZE_CID (16)
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#define SD_BLOCK_SIZE_OCR (4)
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#define SD_BLOCK_SIZE_SDSTAT (64)
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/* Card type definitions (CardType) */
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#define CT_MMC (0x01)
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#define CT_SD1 (0x02)
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#define CT_SD2 (0x04)
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#define CT_SDC (CT_SD1|CT_SD2)
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#define CT_BLOCK (0x08)
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/* Definitions for MMC/SDC command */
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#define CMD0 (0) /* GO_IDLE_STATE */
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#define CMD1 (1) /* SEND_OP_COND */
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#define ACMD41 (41|0x80) /* SEND_OP_COND (SDC) */
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#define CMD8 (8) /* SEND_IF_COND */
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#define CMD9 (9) /* SEND_CSD */
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#define CMD10 (10) /* SEND_CID */
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#define CMD12 (12) /* STOP_TRANSMISSION */
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#define ACMD13 (13|0x80) /* SD_STATUS (SDC) */
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#define CMD16 (16) /* SET_BLOCKLEN */
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#define CMD17 (17) /* READ_SINGLE_BLOCK */
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#define CMD18 (18) /* READ_MULTIPLE_BLOCK */
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#define CMD23 (23) /* SET_BLOCK_COUNT */
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#define ACMD23 (23|0x80) /* SET_WR_BLK_ERASE_COUNT (SDC) */
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#define CMD24 (24) /* WRITE_BLOCK */
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#define CMD25 (25) /* WRITE_MULTIPLE_BLOCK */
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#define CMD41 (41) /* SEND_OP_COND (ACMD) */
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#define CMD55 (55) /* APP_CMD */
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#define CMD58 (58) /* READ_OCR */
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/* Exported functions ------------------------------------------------------- */
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rt_err_t efm_spiSd_init(void);
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void efm_spiSd_deinit(void);
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#endif /* __DEV_SDCARD_H__ */
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