at45db.c

Included Files

#include <nut/include/cfg/os.h>

#include <nut/include/cfg/memory.h>

#include <nut/include/sys/timer.h>

#include <nut/include/include2/string.h>

#include <stdlib.h>

#include <nut/include/dev/at91_spi.h>

#include <nut/include/dev/at45db.h>

Preprocessor definitions

#define MAX_AT45_DEVICES 1

#define MAX_AT45_CMDLEN 8

#define AT45_CONF_DFSPI SPI0_BASE

#define AT45_CONF_DFPCS 1

#define AT45_ERASE_WAIT 3000

#define AT45_CHIP_ERASE_WAIT 50000

#define AT45_WRITE_POLLS 1000

#define DFCMD_CONT_READ_LF 0x03

#define DFCMD_CONT_READ_HF 0x0B

#define DFCMD_BLOCK_ERASE 0x50

#define DFCMD_SECTOR_ERASE 0x7C

#define DFCMD_PAGE_ERASE 0x81

#define DFCMD_BUF1_PROG 0x82

#define DFCMD_BUF1_FLASH 0x83

#define DFCMD_BUF1_WRITE 0x84

#define DFCMD_BUF2_PROG 0x85

#define DFCMD_BUF2_FLASH 0x86

#define DFCMD_BUF2_WRITE 0x87

#define DFCMD_BUF1_FLASH_NE 0x88

#define DFCMD_BUF2_FLASH_NE 0x89

#define DFCMD_CHIP_ERASE 0xC7

#define DFCMD_BUF1_READ_LF 0xD1

#define DFCMD_READ_PAGE 0xD2

#define DFCMD_BUF2_READ_LF 0xD3

#define DFCMD_BUF1_READ 0xD4

#define DFCMD_BUF2_READ 0xD6

#define DFCMD_READ_STATUS 0xD7

#define DFCMD_CONT_READ 0xE8

#define AT45DB_AT91

Typedef AT45_DEVTAB

typedef struct _AT45_DEVTAB AT45_DEVTAB

`struct _AT45_DEVTAB`
`{`
`uint32_t devt_pages;`
`unsigned int devt_pagsiz;`
`unsigned int devt_offs;`
`uint8_t devt_srmsk;`
`uint8_t devt_srval;`
`}`

Typedef AT45DB_DCB

typedef struct _AT45DB_DCB AT45DB_DCB

`struct _AT45DB_DCB`
`{`
`AT45_DEVTAB* dcb_devt;`
`unsigned int dcb_spibas;`
`unsigned int dcb_spipcs;`
`uint8_t dcb_cmdbuf[8];`
`}`

Global Variable at45_devt

AT45_DEVTAB at45_devt[]

Visible in:		nut/dev/at45db.c
Used in:	At45dbInit()	nut/dev/at45db.c

Local Variables

dcbtab
static AT45DB_DCB dcbtab[1]

Used in:	At45dbGetStatus()
	At45dbInit()
	At45dbPageErase()
	At45dbPageRead()
	At45dbPageSize()
	At45dbPageWrite()
	At45dbPages()
	At45dbParamPage()
	At45dbParamSize()
	At45dbSendCmd()

dcbnum
static uint_least8_t dcbnum

Used in:

At45dbInit()

dd_param
static int dd_param

Used in:	At45dbParamPage()
	At45dbParamRead()
	At45dbParamSize()
	At45dbParamWrite()

Global Function At45dbChipErase()

int At45dbChipErase ( void )

Prototyped in:

nut/include/dev/at45db.h

Global Function At45dbGetStatus()

uint8_t At45dbGetStatus ( int dd )

Prototyped in:	nut/include/dev/at45db.h
Calls:	At91SpiTransfer2()	nut/arch/arm/dev/atmel/at91_spi.c
Called by:	At45dbInit()	nut/dev/at45db.c
	At45dbWaitReady()	nut/dev/at45db.c
References Variables:	dcbtab	nut/dev/at45db.c

Global Function At45dbInit()

int At45dbInit ( unsigned int spibas, unsigned int spipcs )

Prototyped in:	nut/include/dev/at45db.h
Calls:	At45dbGetStatus()	nut/dev/at45db.c
Called by:	At45dbParamSize()	nut/dev/at45db.c
References Variables:	at45_devt	nut/dev/at45db.c
	dcbnum	nut/dev/at45db.c
	dcbtab	nut/dev/at45db.c

Global Function At45dbPageErase()

int At45dbPageErase ( int dd, uint32_t pgn )

Prototyped in:	nut/include/dev/at45db.h
Calls:	At45dbSendCmd()	nut/dev/at45db.c
References Variables:	dcbtab	nut/dev/at45db.c

Global Function At45dbPageRead()

int At45dbPageRead ( int dd, uint32_t pgn, void* data, unsigned int len )

Prototyped in:	nut/include/dev/at45db.h
Calls:	At45dbSendCmd()	nut/dev/at45db.c
Called by:	At45dbParamRead()	nut/dev/at45db.c
	At45dbParamWrite()	nut/dev/at45db.c
References Variables:	dcbtab	nut/dev/at45db.c

Global Function At45dbPageSize()

unsigned int At45dbPageSize ( int dd )

Prototyped in:	nut/include/dev/at45db.h
References Variables:	dcbtab	nut/dev/at45db.c

Global Function At45dbPageWrite()

int At45dbPageWrite ( int dd, uint32_t pgn, const void* data, unsigned int len )

Prototyped in:	nut/include/dev/at45db.h
Calls:	At45dbSendCmd()	nut/dev/at45db.c
	At45dbWaitReady()	nut/dev/at45db.c
	free()	nut/crt/malloc.c
	malloc()	nut/crt/malloc.c
Called by:	At45dbParamWrite()	nut/dev/at45db.c
References Variables:	dcbtab	nut/dev/at45db.c

Global Function At45dbPages()

uint32_t At45dbPages ( int dd )

Prototyped in:	nut/include/dev/at45db.h
References Variables:	dcbtab	nut/dev/at45db.c

Global Function At45dbParamPage()

uint32_t At45dbParamPage ( void )

Called by:	At45dbParamRead()	nut/dev/at45db.c
	At45dbParamWrite()	nut/dev/at45db.c
References Variables:	dcbtab	nut/dev/at45db.c
	dd_param	nut/dev/at45db.c

Global Function At45dbParamRead()

int At45dbParamRead ( unsigned int pos, void* data, unsigned int len )

Prototyped in:	nut/include/dev/at45db.h
Calls:	At45dbPageRead()	nut/dev/at45db.c
	At45dbParamPage()	nut/dev/at45db.c
	At45dbParamSize()	nut/dev/at45db.c
	free()	nut/crt/malloc.c
	malloc()	nut/crt/malloc.c
	memcpy()	nut/c/string/memcpy.c
References Variables:	dd_param	nut/dev/at45db.c

Global Function At45dbParamSize()

int At45dbParamSize ( void )

Calls:	At45dbInit()	nut/dev/at45db.c
Called by:	At45dbParamRead()	nut/dev/at45db.c
	At45dbParamWrite()	nut/dev/at45db.c
References Variables:	dcbtab	nut/dev/at45db.c
	dd_param	nut/dev/at45db.c

Global Function At45dbParamWrite()

int At45dbParamWrite ( unsigned int pos, const void* data, unsigned int len )

Prototyped in:	nut/include/dev/at45db.h
Calls:	At45dbPageRead()	nut/dev/at45db.c
	At45dbPageWrite()	nut/dev/at45db.c
	At45dbParamPage()	nut/dev/at45db.c
	At45dbParamSize()	nut/dev/at45db.c
	free()	nut/crt/malloc.c
	malloc()	nut/crt/malloc.c
	memcmp()	nut/c/string/memcmp.c
	memcpy()	nut/c/string/memcpy.c
References Variables:	dd_param	nut/dev/at45db.c

Global Function At45dbSendCmd()

int At45dbSendCmd ( int dd, uint8_t op, uint32_t parm, int len, const void* tdata, void* rdata, int datalen )

Prototyped in:	nut/include/dev/at45db.h
Calls:	At91SpiTransfer2()	nut/arch/arm/dev/atmel/at91_spi.c
	memset()	nut/c/string/memset.c
Called by:	At45dbPageErase()	nut/dev/at45db.c
	At45dbPageRead()	nut/dev/at45db.c
	At45dbPageWrite()	nut/dev/at45db.c
References Variables:	dcbtab	nut/dev/at45db.c

Global Function At45dbWaitReady()

int At45dbWaitReady ( int dd, uint32_t tmo, int poll )

Prototyped in:	nut/include/dev/at45db.h
Calls:	At45dbGetStatus()	nut/dev/at45db.c
	NutSleep()
Called by:	At45dbPageWrite()	nut/dev/at45db.c