/*! * COPYRIGHT NOTICE * Copyright (c) 2013,山外科技 * All rights reserved. * 技术讨论：山外论坛 http://www.vcan123.com * * 除注明出处外，以下所有内容版权均属山外科技所有，未经允许，不得用于商业用途， * 修改内容时必须保留山外科技的版权声明。 * * 本驱动由brtos代码提取并修改而成:http://code.google.com/p/brtos/downloads/detail?name=BRTOS%201.66%20Kinetis%20-%20SD%20card%20-%20BMP%2024%20bit.rar&can=2&q= * * @file MK60_sdhc.c * @brief SD模块函数 * @author 山外科技 & gustavo(brtos作者) * @version v5.0 * @date 2013-09-19 */ #ifndef _MK60_SDHC_H_ #define _MK60_SDHC_H_ 1u #define SDHC_CLOCK (core_clk_khz * 1000) //SD卡初始数据传输需工作在低于400 kb／s的频率 #define SDHC_INIT_BANDRATE 300000 //启动时的波特率 #define SDHC_BANDRATE (24*1000*1000) //正常工作时的波特率 #define SDHC_BUS_WIDTH ESDHC_BUS_WIDTH_4BIT //带宽，目前代码仅支持 1bit 和 4bit #define SDCARD_BLOCK_SIZE 512 //SD卡块大小 #define SEND_OCR_TIME 100 //发送 CMD55 + ACMD41 命令的次数 /* Error code returned by I/O functions */ #define IO_ERROR (-1) typedef enum { ESDHC_IOCTL_INIT, ESDHC_IOCTL_SEND_CMD, ESDHC_IOCTL_GET_CARD, ESDHC_IOCTL_GET_BUS_WIDTH, ESDHC_IOCTL_SET_BUS_WIDTH, } ESDHC_IOCTL_CMD_e; /* 命令码用于 disk_ioctrl 函数 */ /* ESDHC 错误码 */ typedef enum { ESDHC_IOCTL_OK, //OK ESDHC_INIT_ERR, //初始化失败 ESDHC_CMD_ERR, //发送命令出错 ESDHC_CMD_TIMEOUT, //发送命令超时 ESDHC_CMD_INVALID, //无效命令 ESDHC_PARAM_INVALID, //参数无效 ESDHC_BUS_WIDTH_INVALID, //总线宽度无效 ESDHC_BUSY, //设备忙 } ESDHC_IOCTL_ERR_e; /* ESDHC 总线宽度 */ typedef enum { //值是根据寄存器 来配置的 ESDHC_BUS_WIDTH_1BIT = 0, ESDHC_BUS_WIDTH_4BIT = 1, ESDHC_BUS_WIDTH_8BIT = 2, } ESDHC_BUS_WIDTH_e; /* ESDHC 卡类型 */ typedef enum { ESDHC_CARD_NONE ,//没有卡 ESDHC_CARD_UNKNOWN ,//不能识别卡 ESDHC_CARD_SD ,//SD ESDHC_CARD_SDHC ,//SDHC ESDHC_CARD_SDIO ,//SDIO ESDHC_CARD_SDCOMBO , ESDHC_CARD_SDHCCOMBO , ESDHC_CARD_MMC ,//MMC ESDHC_CARD_CEATA , } ESDHC_CARD_e; /* ESDHC 命令类型 */ typedef enum { ESDHC_TYPE_NORMAL , ESDHC_TYPE_SUSPEND , ESDHC_TYPE_RESUME , ESDHC_TYPE_ABORT , } ESDHC_TYPE_e; /* ESDHC 命令 */ #define ESDHC_CMD0 (0) #define ESDHC_CMD1 (1) #define ESDHC_CMD2 (2) #define ESDHC_CMD3 (3) #define ESDHC_CMD4 (4) #define ESDHC_CMD5 (5) #define ESDHC_CMD6 (6) #define ESDHC_CMD7 (7) #define ESDHC_CMD8 (8) #define ESDHC_CMD9 (9) #define ESDHC_CMD10 (10) #define ESDHC_CMD11 (11) #define ESDHC_CMD12 (12) #define ESDHC_CMD13 (13) #define ESDHC_CMD15 (15) #define ESDHC_CMD16 (16) #define ESDHC_CMD17 (17) #define ESDHC_CMD18 (18) #define ESDHC_CMD20 (20) #define ESDHC_CMD24 (24) #define ESDHC_CMD25 (25) #define ESDHC_CMD26 (26) #define ESDHC_CMD27 (27) #define ESDHC_CMD28 (28) #define ESDHC_CMD29 (29) #define ESDHC_CMD30 (30) #define ESDHC_CMD32 (32) #define ESDHC_CMD33 (33) #define ESDHC_CMD34 (34) #define ESDHC_CMD35 (35) #define ESDHC_CMD36 (36) #define ESDHC_CMD37 (37) #define ESDHC_CMD38 (38) #define ESDHC_CMD39 (39) #define ESDHC_CMD40 (40) #define ESDHC_CMD42 (42) #define ESDHC_CMD52 (52) #define ESDHC_CMD53 (53) #define ESDHC_CMD55 (55) #define ESDHC_CMD56 (56) #define ESDHC_CMD60 (60) #define ESDHC_CMD61 (61) #define ESDHC_ACMD6 (6) #define ESDHC_ACMD13 (13) #define ESDHC_ACMD22 (22) #define ESDHC_ACMD23 (23) #define ESDHC_ACMD41 (41) #define ESDHC_ACMD42 (42) #define ESDHC_ACMD51 (51) #define ESDHC_XFERTYP_RSPTYP_NO (0x00) #define ESDHC_XFERTYP_RSPTYP_136 (0x01) #define ESDHC_XFERTYP_RSPTYP_48 (0x02) #define ESDHC_XFERTYP_RSPTYP_48BUSY (0x03) #define ESDHC_XFERTYP_CMDTYP_ABORT (0x03) #define ESDHC_PROCTL_EMODE_INVARIANT (0x02) #define ESDHC_PROCTL_DTW_1BIT (0x00) #define ESDHC_PROCTL_DTW_4BIT (0x01) #define ESDHC_PROCTL_DTW_8BIT (0x10) typedef struct { uint8 COMMAND; //命令 uint8 TYPE; //命令类型 SDHC_XFERTYP_CMDTYP uint8 READ; uint8 RES; //保留 uint32 ARGUMENT; //命令的参数寄存器 (SDHC_CMDARG) uint32 BLOCKS; uint32 RESPONSE[4]; } ESDHC_CMD_t, *pESDHC_CMD_t; /*! * @brief SD Card 结构信息 */ typedef struct { /* 实际卡状态 */ uint32 CARD; /* 底层的响应超时 >= 250 ms */ uint32 SD_TIMEOUT; /* 该设备的块数量 */ uint32 NUM_BLOCKS; /* 卡地址 */ uint32 ADDRESS; /* 高容量 = 块寻址 (SD是字节寻址，SDHC是块寻址) */ uint8 SDHC; /* 规范2或更高版本的卡 = 不同的CSD寄存器 */ uint8 VERSION2; uint8 RES[2]; } SDCARD_t, *pSDCARD_t; extern SDCARD_t SDHC_card; extern void SDHC_init(); // SDHC 初始化 extern ESDHC_IOCTL_ERR_e SDHC_ioctl(ESDHC_IOCTL_CMD_e cmd, void *param_ptr); // SDHC 控制命令 extern void SDHC_set_baudrate(uint32 baudrate); // SDHC波特率配置 extern uint32 SDHC_cmd (pESDHC_CMD_t command); // SDHC发送cmd命令 #define SDHC_is_running() (0 != (SDHC_PRSSTAT & (SDHC_PRSSTAT_RTA_MASK | SDHC_PRSSTAT_WTA_MASK | SDHC_PRSSTAT_DLA_MASK | SDHC_PRSSTAT_CDIHB_MASK | SDHC_PRSSTAT_CIHB_MASK))) #define SDHC_STATUS_WAIT(MASK) while (0 == (SDHC_IRQSTAT & (MASK))); #define SDHC_STATUS_GET(MASK) (SDHC_IRQSTAT & (MASK)) #endif //_MK60_SDHC_H_