MMC ドライバ [詳解]

#include "device.h"
#include "device/spi_ioctl.h"
#include "device/sd_ioctl.h"
#include "tkprintf.h"
#include "dkprintf.h"
#include "diskio.h"
#include "timer.h"

spi_mmc.c の依存先関係図:

[ソースコード]

マクロ定義
#define	CMD0 (0x40+0) /* GO_IDLE_STATE */

#define	CMD1 (0x40+1) /* SEND_OP_COND */

#define	ACMD41 (0xC0+41) /* SEND_OP_COND (SDC) */

#define	CMD8 (0x40+8) /* SEND_IF_COND */

#define	CMD9 (0x40+9) /* SEND_CSD */

#define	CMD10 (0x40+10) /* SEND_CID */

#define	CMD12 (0x40+12) /* STOP_TRANSMISSION */

#define	ACMD13 (0xC0+13) /* SD_STATUS (SDC) */

#define	CMD16 (0x40+16) /* SET_BLOCKLEN */

#define	CMD17 (0x40+17) /* READ_SINGLE_BLOCK */

#define	CMD18 (0x40+18) /* READ_MULTIPLE_BLOCK */

#define	CMD23 (0x40+23) /* SET_BLOCK_COUNT */

#define	ACMD23 (0xC0+23) /* SET_WR_BLK_ERASE_COUNT (SDC) */

#define	CMD24 (0x40+24) /* WRITE_BLOCK */

#define	CMD25 (0x40+25) /* WRITE_MULTIPLE_BLOCK */

#define	CMD41 (0x40+41) /* SEND_OP_COND (ACMD) */

#define	CMD55 (0x40+55) /* APP_CMD */

#define	CMD58 (0x40+58) /* READ_OCR */

#define	PKT_TOUT 200

#define	S_SIZ 512

関数
static void	SELECT (void)

static BYTE	rcvr_spi (void)

static void	DESELECT (void)

static void	xmit_spi (BYTE dat)

static BYTE	wait_ready (void)

static void	release_spi (void)

static void	power_on (void)

static void	power_off (void)

static int	rcvr_datablock (BYTE *buff, UINT btr)

static int	xmit_datablock (const BYTE *buff, BYTE token)

static BYTE	send_cmd (BYTE cmd, DWORD arg)

static DSTATUS	mmc_disk_initialize (BYTE drv)

static DRESULT	mmc_disk_read (BYTE drv, BYTE *buff, DWORD sector, BYTE count)

static DRESULT	mmc_disk_write (BYTE drv, const BYTE *buff, DWORD sector, BYTE count)

static DRESULT	mmc_disk_ioctl (BYTE drv, BYTE ctrl, void *buff)

static int	mmc_register (struct st_device dev, char param)

static int	mmc_unregister (struct st_device *dev)

static int	mmc_open (struct st_device *dev)

static int	mmc_close (struct st_device *dev)

static int	mmc_block_read (struct st_device dev, void data, unsigned int sector, unsigned int count)

static int	mmc_block_write (struct st_device dev, const void data, unsigned int sector, unsigned int count)

static int	mmc_ioctl (struct st_device dev, unsigned int com, unsigned int arg, void param)

static int	mmc_sync (struct st_device *dev)

static int	mmc_suspend (struct st_device *dev)

static int	mmc_resume (struct st_device *dev)

変数
static struct st_device *	mmc_spi

static volatile DSTATUS	Stat = STA_NOINIT

static BYTE	CardType

const struct st_device	mmc_device

詳解

MMC ドライバ

SPIドライバ使用

日付: 2008.01.02

著者: Takashi SHUDO

spi_mmc.c に定義があります。

変数詳解

◆ mmc_device

const struct st_device mmc_device

初期値:

= {
        .name           = DEF_DEV_NAME_SD,
        .explan         = "MMC/SD SPI mode Strage",
        .register_dev   = mmc_register,
        .unregister_dev = mmc_unregister,
        .open           = mmc_open,
        .close          = mmc_close,
        .block_read     = mmc_block_read,
        .block_write    = mmc_block_write,
        .ioctl          = mmc_ioctl,
        .sync           = mmc_sync,
        .suspend        = mmc_suspend,
        .resume         = mmc_resume,
}

spi_mmc.c の 724 行目に定義があります。

マクロ定義

関数

変数

詳解

変数詳解

◆ mmc_device