📄 sdhal.h
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/****************************************Copyright (c)**************************************************
** Guangzhou ZLG-MCU Development Co.,LTD.
** graduate school
** http://www.zlgmcu.com
**
**--------------File Info-------------------------------------------------------------------------------
** File name: sdhal.h
** Last modified Date: 2007-7-15
** Last Version: V1.0
** Descriptions: SD/MMC卡读写模块 ---- SD模式 硬件抽象层文件头文件
**
**
**------------------------------------------------------------------------------------------------------
** Created by: Ming Yuan Zheng
** Created date: 2007-7-15
** Version: V1.0
** Descriptions: The original version
**
**------------------------------------------------------------------------------------------------------
** Modified by:
** Modified date:
** Version:
** Descriptions:
**
**------------------------------------------------------------------------------------------------------
** Modified by:
** Modified date:
** Version:
** Descriptions:
**
********************************************************************************************************/
#ifndef __SDHAL_H__
#define __SDHAL_H__
/**************************************
LPC24xx 硬件配置(使用SD总线)
**************************************/
/*
特别注意: 如果使能以DMA方式读写卡, 读写卡时, DMA将占用LPC24xx USB的DMA区域(8K Bytes)!!
*/
#if SDBUS_MODE_EN
#define LPC24xx_MCI_DMA_EN 0 /* 是(1)否(0)使能LPC24xx的DMA功能 */
#else
#define LPC24xx_MCI_DMA_EN 0 /* 值固定义0 */
#endif
#if SDBUS_MODE_EN
/* P1.2 为 MCLK */
#define MCI_CLK_PIN() PINSEL2 &= ~(0x03 << 4); PINSEL2 |= (0x2 << 4);
#define MCI_CLK_GPIO() PINSEL2 &= ~(0x03 << 4);
#define MCI_CLK_OUT() IO1DIR |= (0x01 << 2);
#define MCI_CLK_CLR() IO1CLR |= (0x01 << 2);
/* P1.3 为 MCMD */
#define MCI_CMD_PIN() PINSEL2 &= ~(0x03 << 6); PINSEL2 |= (0x2 << 6);
#define MCI_CMD_GPIO() PINSEL2 &= ~(0x03 << 6);
#define MCI_CMD_OUT() IO1DIR |= (0x01 << 3);
#define MCI_CMD_CLR() IO1CLR |= (0x01 << 3);
/* P1.6 为 MCIDAT0 */
#define MCI_DAT0_PIN() PINSEL2 &= ~(0x03 << 12);PINSEL2 |= (0x2 << 12);
#define MCI_DAT0_GPIO() PINSEL2 &= ~(0x03 << 12);
#define MCI_DAT0_OUT() IO1DIR |= (0x01 << 6);
#define MCI_DAT0_CLR() IO1CLR |= (0x01 << 6);
/* P1.7 为 MCIDAT1 */
#define MCI_DAT1_PIN() PINSEL2 &= ~(0x03 << 14);PINSEL2 |= (0x2 << 14);
#define MCI_DAT1_GPIO() PINSEL2 &= ~(0x03 << 14);
#define MCI_DAT1_OUT() IO1DIR |= (0x01 << 7);
#define MCI_DAT1_CLR() IO1CLR |= (0x01 << 7);
/* P1.11 为 MCIDAT2 */
#define MCI_DAT2_PIN() PINSEL2 &= ~(0x03 << 22);PINSEL2 |= (0x2 << 22);
#define MCI_DAT2_GPIO() PINSEL2 &= ~(0x03 << 22);
#define MCI_DAT2_OUT() IO1DIR |= (0x01 << 11);
#define MCI_DAT2_CLR() IO1CLR |= (0x01 << 11);
/* P1.12 为 MCIDAT3 */
#define MCI_DAT3_PIN() PINSEL2 &= ~(0x03 << 24);PINSEL2 |= (0x2 << 24);
#define MCI_DAT3_GPIO() PINSEL2 &= ~(0x03 << 24);
#define MCI_DAT3_OUT() IO1DIR |= (0x01 << 12);
#define MCI_DAT3_CLR() IO1CLR |= (0x01 << 12);
/* P2.21 卡写保护检测引脚*/
#define SD_WP (0x01 << 21)
#define SD_WP_GPIO() PINSEL5 &= ~(0x03 << 10) /* 设置 POWER 口为GPIO口 */
#define SD_WP_IN() FIO2DIR &= ~SD_WP /* 设置 WP 口为输入口 */
#define SD_WP_STATUS() (FIO2PIN & SD_WP) /* 读取 WP 口的状态 */
/* P2.19 卡完全插入卡座检测引脚 */
#define SD_INSERT (0x01 << 19)
#define SD_INSERT_GPIO() PINSEL5 &= ~(0x03 << 6) /* 设置 INSERT 口为GPIO口 */
#define SD_INSERT_IN() FIO2DIR &= ~SD_INSERT /* 设置 INSERT 口为输入口 */
#define SD_INSERT_STATUS() (FIO2PIN & SD_INSERT) /* 读取 INSERT 口的状态 */
/* P1.5 电源控制引脚 */
#define SD_POWER (0x01 << 5)
#define SD_POWER_GPIO() PINSEL2 &= ~(0x03 << 10); /* 设置 WP 口为GPIO口 */
#define SD_POWER_OUT() IO1DIR |= SD_POWER /* 设置 POWER 口为输出口 */
#define SD_POWER_OFF() IO1SET |= SD_POWER /* 置 POWER 为高电平 */
#define SD_POWER_ON() IO1CLR |= SD_POWER /* 置 POWER 为低电平 */
#if LPC24xx_MCI_DMA_EN
#define DMA_SRC 0x7FD00000 /* This is the area original data is stored
or data to be written to the SD/MMC card. */
#define DMA_DST 0x7FD01000 /* This is the area, after writing to the SD/MMC,
data read from the SD/MMC card. */
#define DMA_MCIFIFO 0xE008C080
#define DMA_SIZE SD_BLOCKSIZE /* DMA_SIZE is the same BLOCK_LENGTH defined in mci.h */
/* DMA mode */
#define M2M 0x00
#define M2P 0x01
#define P2M 0x02
#define P2P 0x03
extern INT32U DMA_Init(INT32U ChannelNum, INT32U DMAMode);
#endif
/*
****************************
SD 总线模式
****************************
*/
/* SD/MMC Command list, per MMC spec. SD Memory Card Spec. Simplified version */
#define GO_IDLE_STATE 0 /* GO_IDLE_STATE(MMC) or RESET(SD) */
#define SEND_OP_COND 1 /* SEND_OP_COND(MMC) or ACMD41(SD) */
#define ALL_SEND_CID 2 /* ALL SEND_CID */
#define SET_RELATIVE_ADDR 3 /* SET_RELATE_ADDR */
#define SET_ACMD_BUS_WIDTH 6
#define SELECT_CARD 7 /* SELECT/DESELECT_CARD */
#define SEND_CSD 9 /* SEND_CSD */
#define STOP_TRANSMISSION 12 /* Stop either READ or WRITE operation */
#define SEND_STATUS 13 /* SEND_STATUS */
#define SET_BLOCK_LEN 16 /* SET_BLOCK_LEN */
#define READ_SINGLE_BLOCK 17 /* READ_SINGLE_BLOCK */
#define WRITE_BLOCK 24 /* WRITE_BLOCK */
#define SEND_APP_OP_COND 41 /* ACMD41 for SD card */
#define APP_CMD 55 /* APP_CMD, the following will a ACMD */
#define EXPECT_NO_RESP 0
#define EXPECT_SHORT_RESP 1
#define EXPECT_LONG_RESP 2
#define MCLKDIV_SLOW 0x60
#define MCLKDIV_NORMAL 0x60
#define BLOCK_NUM 0x80
#define FIFO_SIZE 16
/* MCI Status register bit information */
#define MCI_CMD_CRC_FAIL 1 << 0
#define MCI_DATA_CRC_FAIL 1 << 1
#define MCI_CMD_TIMEOUT 1 << 2
#define MCI_DATA_TIMEOUT 1 << 3
#define MCI_TX_UNDERRUN 1 << 4
#define MCI_RX_OVERRUN 1 << 5
#define MCI_CMD_RESP_END 1 << 6
#define MCI_CMD_SENT 1 << 7
#define MCI_DATA_END 1 << 8
#define MCI_START_BIT_ERR 1 << 9
#define MCI_DATA_BLK_END 1 << 10
#define MCI_CMD_ACTIVE 1 << 11
#define MCI_TX_ACTIVE 1 << 12
#define MCI_RX_ACTIVE 1 << 13
#define MCI_TX_HALF_EMPTY 1 << 14
#define MCI_RX_HALF_FULL 1 << 15
#define MCI_TX_FIFO_FULL 1 << 16
#define MCI_RX_FIFO_FULL 1 << 17
#define MCI_TX_FIFO_EMPTY 1 << 18
#define MCI_RX_FIFO_EMPTY 1 << 19
#define MCI_TX_DATA_AVAIL 1 << 20
#define MCI_RX_DATA_AVAIL 1 << 21
#define CMD_INT_MASK (MCI_CMD_CRC_FAIL | MCI_CMD_TIMEOUT | MCI_CMD_RESP_END \
| MCI_CMD_SENT | MCI_CMD_ACTIVE)
#define DATA_ERR_INT_MASK (MCI_DATA_CRC_FAIL | MCI_DATA_TIMEOUT | MCI_TX_UNDERRUN \
| MCI_RX_OVERRUN | MCI_START_BIT_ERR)
#define DATA_INT_MASK (MCI_DATA_END | MCI_DATA_BLK_END | MCI_TX_ACTIVE \
| MCI_RX_ACTIVE)
#define FIFO_INT_MASK (MCI_TX_HALF_EMPTY | MCI_RX_HALF_FULL | MCI_TX_FIFO_FULL \
| MCI_RX_FIFO_FULL | MCI_TX_FIFO_EMPTY | MCI_RX_DATA_AVAIL \
| MCI_TX_DATA_AVAIL | MCI_RX_FIFO_EMPTY)
#define DATA_TX_INT_MASK MCI_DATA_CRC_FAIL | MCI_DATA_TIMEOUT | MCI_TX_UNDERRUN \
| MCI_START_BIT_ERR | MCI_DATA_END | MCI_DATA_BLK_END | MCI_TX_ACTIVE
#define DATA_RX_INT_MASK MCI_DATA_CRC_FAIL | MCI_DATA_TIMEOUT | MCI_RX_OVERRUN \
| MCI_START_BIT_ERR | MCI_DATA_END | MCI_DATA_BLK_END | MCI_RX_ACTIVE
extern void SdHal_EnableMCIBusWidth(sd_struct *sds, INT32U bWidth);
extern INT8U SdHal_Initialize(sd_struct *sds);
extern void SdHal_OpenDrainCmd(sd_struct *sds, INT8U bOpenDrain);
extern void SdHal_SetMCIClock(sd_struct *sds, INT32U ClockRate);
extern INT8U SdHal_SendCmd(sd_struct *sds, INT8U cmd, INT32U argument, INT8U resptype, INT32U *resp, INT8U resplen);
extern INT8U SdHal_CheckCard(sd_struct *sds);
extern INT8U SdHal_CheckCardWP(sd_struct *sds);
extern INT8U SdHal_BeforeReadBlock(sd_struct *sds);
extern INT8U SdHal_ReadBlock(sd_struct *sds, INT8U *recbuf);
extern INT8U SdHal_BeforeWriteBlock(sd_struct *sds);
extern INT8U SdHal_WriteBlock(sd_struct *sds, INT8U *sendbuf);
extern INT8U SdHal_WaitReadyforData(sd_struct *sds);
extern INT8U SdHal_WaitBusy(sd_struct *sds, INT32U busytype);
extern void SdHal_EnableMCIBusWidth(sd_struct *sds, INT32U bWidth);
/*
#if !SD_UCOSII_EN
extern void __irq MCI_Handler(void);
#endif
*/
#if SD_UCOSII_EN
extern void MCI_Exception(void);
#else
extern void __irq MCI_Handler(void);
#endif
#endif
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