//*---------------------------------------------------------------------------

//*         ATMEL Microcontroller Software Support  -  ROUSSET  -

//*---------------------------------------------------------------------------

//* The software is delivered "AS IS" without warranty or condition of any

//* kind, either express, implied or statutory. This includes without

//* limitation any warranty or condition with respect to merchantability or

//* fitness for any particular purpose, or against the infringements of

//* intellectual property rights of others.

//*---------------------------------------------------------------------------

//* File Name           : dataflash.h

//* Object              : Data Flash Atmel Description File

//* Translator          :

//*

//* 1.0 03/04/01 HI		: Creation

//*---------------------------------------------------------------------------



#ifndef Dataflash_h

#define Dataflash_h



#include "periph/spi/lib_spi.h"



/*--------------------*/

/* Command Definition */

/*--------------------*/

/* READ COMMANDS */

#define DB_CONTINUOUS_ARRAY_READ       	0xE8		/* Continuous array read */

#define DB_BURST_ARRAY_READ            	0xE8		/* Burst array read */

#define DB_PAGE_READ                   	0xD2		/* Main memory page read */

#define DB_BUF1_READ                   	0xD4		/* Buffer 1 read */

#define DB_BUF2_READ                   	0xD6		/* Buffer 2 read */

#define DB_STATUS                      	0xD7		/* Status Register */



/* PROGRAM and ERASE COMMANDS */

#define DB_BUF1_WRITE                  	0x84		/* Buffer 1 write */

#define DB_BUF2_WRITE                  	0x87		/* Buffer 2 write */

#define DB_BUF1_PAGE_ERASE_PGM         	0x83		/* Buffer 1 to main memory page program with built-In erase */

#define DB_BUF1_PAGE_ERASE_FASTPGM     	0x93		/* Buffer 1 to main memory page program with built-In erase, Fast program */

#define DB_BUF2_PAGE_ERASE_PGM         	0x86		/* Buffer 2 to main memory page program with built-In erase */

#define DB_BUF2_PAGE_ERASE_FASTPGM     	0x96		/* Buffer 1 to main memory page program with built-In erase, Fast program */

#define DB_BUF1_PAGE_PGM               	0x88		/* Buffer 1 to main memory page program without built-In erase */

#define DB_BUF1_PAGE_FASTPGM           	0x98		/* Buffer 1 to main memory page program without built-In erase, Fast program*/

#define DB_BUF2_PAGE_PGM               	0x89		/* Buffer 2 to main memory page program without built-In erase */

#define DB_BUF2_PAGE_FASTPGM           	0x99		/* Buffer 1 to main memory page program without built-In erase, Fast program*/

#define DB_PAGE_ERASE                  	0x81		/* Page Erase */

#define DB_BLOCK_ERASE                 	0x50		/* Block Erase */

#define DB_PAGE_PGM_BUF1               	0x82		/* Main memory page through buffer 1 */

#define DB_PAGE_FASTPGM_BUF1           	0x92		/* Main memory page through buffer 1, Fast program */

#define DB_PAGE_PGM_BUF2               	0x85		/* Main memory page through buffer 2 */

#define DB_PAGE_FastPGM_BUF2           	0x95		/* Main memory page through buffer 2, Fast program */



/* ADDITIONAL COMMANDS */

#define DB_PAGE_2_BUF1_TRF             	0x53		/* Main memory page to buffer 1 transfert */

#define DB_PAGE_2_BUF2_TRF             	0x55		/* Main memory page to buffer 2 transfert */

#define DB_PAGE_2_BUF1_CMP             	0x60		/* Main memory page to buffer 1 compare */

#define DB_PAGE_2_BUF2_CMP             	0x61		/* Main memory page to buffer 2 compare */

#define DB_AUTO_PAGE_PGM_BUF1          	0x58		/* Auto page rewrite throught buffer 1 */

#define DB_AUTO_PAGE_PGM_BUF2          	0x59		/* Auto page rewrite throught buffer 2 */



/*DataFlash return value */

#define DATAFLASH_BUSY					0x00

#define DATAFLASH_OK					0x01

#define DATAFLASH_ERROR					0x02

#define DATAFLASH_MEMORY_OVERFLOW		0x03

#define DATAFLASH_BAD_COMMAND			0x04

#define DATAFLASH_BAD_ADDRESS			0x05



#define DATAFLASH_CLK           		8000000

#define SPI_CLK			        		MASTER_CLOCK / (2*DATAFLASH_CLK)



/* Driver State */

#define     IDLE            			0x0

#define		BUSY						0x1

#define		ERROR						0x2



/* DataFlash Driver State */

#define		GET_STATUS					0x0F



typedef struct _AT91S_DataflashDesc

{

	unsigned char			*tx_cmd_pt;

    unsigned int   			tx_cmd_size;

    unsigned char  			*rx_cmd_pt;

    unsigned int       		rx_cmd_size;

    unsigned char      		*tx_data_pt;

    unsigned int       		tx_data_size;

    unsigned char      		*rx_data_pt;

    unsigned int			rx_data_size;

    volatile unsigned char	state;

    volatile unsigned char	DataFlash_state;

    unsigned char			command[8];



} AT91S_DataflashDesc, *AT91PS_DataflashDesc;



/*DataFlash device definition structure */

typedef struct _AT91S_Dataflash {

	int    			pages_number;	//* dataflash page number

	int				pages_size;		//* dataflash page size

	int				page_offset;	//* page offset in command

	int				byte_mask;		//* byte mask in command

} AT91S_Dataflash, *AT91PS_Dataflash;



#endif