Bit-banging MMC Driver

Block device driver for MM/SD Cards. More...

Collaboration diagram for Bit-banging MMC Driver:

Data Structures
struct	_MMCDCB
	Private data of NPL card interface. More...
Defines
#define	MMC_DEV_NAME   {'M', 'M', 'C', '0', 0, 0, 0, 0, 0}
#define	MMC_DEV_NAME   {'M', 'M', 'C', '1', 0, 0, 0, 0, 0}
#define	MMC_DEV_NAME   {'M', 'M', 'C', '2', 0, 0, 0, 0, 0}
#define	MMC_DEV_NAME   {'M', 'M', 'C', '3', 0, 0, 0, 0, 0}
#define	MMC_CLK_LO()
#define	MMC_CLK_HI()
#define	MMC_CLK_EN()
#define	MMC_CLK_SO()
#define	MMC_MOSI_LO()
#define	MMC_MOSI_HI()
#define	MMC_MOSI_EN()
#define	MMC_MOSI_SO()
#define	MMC_MISO_TEST()   (1)
#define	MMC_MISO_EN()
#define	MMC_MISO_SI()
#define	MMC_CS_LO()
#define	MMC_CS_HI()
#define	MMC_CS_IS()   (1)
#define	MMC_CS_EN()
#define	MMC_CS_SO()
Typedefs
typedef struct _MMCDCB	MMCDCB
	Private data of NPL card interface.
Variables
NUTDEVICE	devSbi0MmCard0
NUTDEVICE	devSbi0MmCard1
NUTDEVICE	devSbi1MmCard0
NUTDEVICE	devSbi1MmCard1
NUTDEVICE	devSbiMmCard
	Multimedia card device information structure.

---

Detailed Description

Block device driver for MM/SD Cards.

Low Level Multimedia Card Access.

Low level MMC hardware routines for SPI emulation by software (bit banging).

These routines support SPI mode only and are required by the basic MMC driver.

 * $Id: sbi0mmc0.c 2349 2008-10-23 08:52:20Z haraldkipp $
 * 

Low level MMC hardware routines for SPI emulation by software (bit banging).

These routines support SPI mode only and are required by the basic MMC driver.

 * $Id: sbi0mmc1.c 2349 2008-10-23 08:52:20Z haraldkipp $
 * 

Low level MMC hardware routines for SPI emulation by software (bit banging).

These routines support SPI mode only and are required by the basic MMC driver.

 * $Id: sbi1mmc0.c 2349 2008-10-23 08:52:20Z haraldkipp $
 * 

Low level MMC hardware routines for SPI emulation by software (bit banging).

These routines support SPI mode only and are required by the basic MMC driver.

 * $Id: sbi1mmc1.c 2349 2008-10-23 08:52:20Z haraldkipp $
 * 

Low level MMC hardware routines for SPI emulation by software (bit banging).

These routines support SPI mode only and are required by the basic MMC driver.

 * $Id: sbi_mmc.c 2467 2009-02-17 09:30:02Z haraldkipp $
 * 

---

Define Documentation

#define MMC_DEV_NAME   {'M', 'M', 'C', '0', 0, 0, 0, 0, 0}

#define MMC_DEV_NAME   {'M', 'M', 'C', '1', 0, 0, 0, 0, 0}

#define MMC_DEV_NAME   {'M', 'M', 'C', '2', 0, 0, 0, 0, 0}

#define MMC_DEV_NAME   {'M', 'M', 'C', '3', 0, 0, 0, 0, 0}

#define MMC_CLK_LO

(

)

#define MMC_CLK_HI

(

)

#define MMC_CLK_EN

(

)

#define MMC_CLK_SO

(

)

#define MMC_MOSI_LO

(

)

#define MMC_MOSI_HI

(

)

#define MMC_MOSI_EN

(

)

#define MMC_MOSI_SO

(

)

#define MMC_MISO_TEST

(

)

(1)

#define MMC_MISO_EN

(

)

#define MMC_MISO_SI

(

)

#define MMC_CS_LO

(

)

#define MMC_CS_HI

(

)

#define MMC_CS_IS

(

)

(1)

#define MMC_CS_EN

(

)

#define MMC_CS_SO

(

)

---

Typedef Documentation

typedef struct _MMCDCB MMCDCB

Private data of NPL card interface.

---

Variable Documentation

NUTDEVICE devSbi0MmCard0

NUTDEVICE devSbi0MmCard1

NUTDEVICE devSbi1MmCard0

NUTDEVICE devSbi1MmCard1

NUTDEVICE devSbiMmCard

Initial value:

 {
    0,                  
    MMC_DEV_NAME,       
    0,                  
    0,                  
    0,                  
    &mmc_ifc,           
    &mmc_dcb,           
    SbiMmcIfcInit,      
    MmCardIOCtl,        
    MmCardBlockRead,    
    MmCardBlockWrite,   

    MmCardBlockWrite_P, 

    MmCardMount,        
    MmCardUnmount,      
    0                   
}

Multimedia card device information structure.

A pointer to this structure must be passed to NutRegisterDevice() to bind this driver to the Nut/OS kernel. An application may then call /verbatim _open("MMC0:", _O_RDWR | _O_BINARY); /endverbatim to mount the first active primary partition with any previously registered file system driver (typically devPhat0).