ATMEL 89c51sndc mp3外接硬盘源码
源代码在线查看： smc_drv.h
/*H**************************************************************************
* NAME: smc_drv.h
*----------------------------------------------------------------------------
* Copyright (c) 2002 Atmel.
*----------------------------------------------------------------------------
* RELEASE: snd1c-demo-hdd-0_2_0
* REVISION: 1.4
*----------------------------------------------------------------------------
* PURPOSE: This file contains the SMC driver definitions
*
*****************************************************************************/
#ifndef _SMC_DRV_H_
#define _SMC_DRV_H_
/*_____ I N C L U D E S ____________________________________________________*/
/*_____ M A C R O S ________________________________________________________*/
/************************** Read Command ************************************/
#define SMC_READ_A_AREA_CMD 0x00
#define SMC_READ_B_AREA_CMD 0x01
#define SMC_READ_C_AREA_CMD 0x50
/************************** Read ID Command *********************************/
#define SMC_READ_ID_CMD 0x90
#define SMC_RESET_CMD 0xff
/************************** Program command *********************************/
#define SMC_SEQUENTIAL_DATA_INPUT_CMD 0x80
#define SMC_PAGE_PROGRAM_CMD 0x10
/************************** Erase command ***********************************/
#define SMC_BLOCK_ERASE_CMD 0x60
#define SMC_BLOCK_ERASE_CONFIRM_CMD 0xD0
/************************** Read Status command *****************************/
#define SMC_READ_STATUS_CMD 0x70
/* Pin out definition */
#define SMC_RD_BUSY P2_4
#define Smc_CS_ON() (P2_3 = 0)
#define Smc_CS_OFF() (P2_3 = 1)
#define SMC_PRESENT (/* Define a Pin here */ 1 )
#define Smc_card_detect() (SMC_PRESENT)
#define SMC_BUFFER_SIZE (Byte)(32)
#define Smc_wait_busy() { while ( !SMC_RD_BUSY); }
/*_____ D E F I N I T I O N ________________________________________________*/
/* Structure to store the correspondance between logical and physical block */
typedef struct
{
Byte zone;
Uint16 logical_block;
Uint16 physical_block;
} t_reassign_block;
/* ECC DEFINITION */
#define BIT7 0x80
#define BIT6 0x40
#define BIT5 0x20
#define BIT4 0x10
#define BIT3 0x08
#define BIT2 0x04
#define BIT1 0x02
#define BIT0 0x01
#define BIT1BIT0 0x03
#define BIT23 0x00800000L
#define MASK_CPS 0x3f
#define CORRECTABLE 0x00555554L
//#define SMC_ECC
/* SMARTMEDIAD CARD DEFINITION */
/* This value are only for 16Mbytes and upper SMARTMEDIA Card capacities */
#define SMC_PAGE_PER_BLOCK (32) /* pages_block value: pages in a block */
#define SMC_DATA_SIZE (512) /* data_size value: data_size in bytes */
#define SMC_SPARE_SIZE (16) /* spare_size value: spare_size in bytes*/
#define SMC_ZONE_MAX (8) /* 8 zones */
#define SMC_BLOCK_PER_ZONE (1024) /* 1024 block per size */
#define SMC_SIZE_16MB (Byte)(16)
#define SMC_SIZE_32MB (Byte)(32)
#define SMC_SIZE_64MB (Byte)(64)
#define SMC_SIZE_128MB (Byte)(128)
#define SMC_16MB (0)
#define SMC_32MB (1)
#define SMC_64MB (2)
#define SMC_128MB (3)
#define SMC_SECTOR_SIZE_16MB (Uint32)(31999)
#define SMC_SECTOR_SIZE_32MB (Uint32)(63999)
#define SMC_SECTOR_SIZE_64MB (Uint32)(127999)
#define SMC_SECTOR_SIZE_128MB (Uint32)(255999)
/* SCSI DEFINITION FOR SMARTMEDIA */
#define SMC_BLOCK_SIZE ((Uint32)(SMC_DATA_SIZE))
#define SMC_DISK_SIZE ((Uint32)(smc_disk_size))
/* Low Level routine */
#define Smc_rd_byte() (smc_data)
#define Smc_wr_byte(b) (smc_data = b)
#define Smc_send_command(command) (smc_send_cmd = command)
#define Smc_send_address(address) (smc_send_add = address)
#define Smc_write_open_B_area(address_sector, nb_byte) \
Smc_wait_busy(); \
Smc_send_command (SMC_READ_B_AREA_CMD); \
Smc_send_command (SMC_SEQUENTIAL_DATA_INPUT_CMD); \
Smc_send_address ( nb_byte ); \
Smc_send_address ( ((Byte*)&address_sector)[3] ); \
Smc_send_address ( ((Byte*)&address_sector)[2] ); \
if (smc_64) Smc_send_address ( ((Byte*)&address_sector)[1] )
#define Smc_write_open_A_area(address_sector, nb_byte) \
Smc_wait_busy(); \
Smc_send_command (SMC_READ_A_AREA_CMD); \
Smc_send_command (SMC_SEQUENTIAL_DATA_INPUT_CMD); \
Smc_send_address ( nb_byte ); \
Smc_send_address ( ((Byte*)&address_sector)[3] ); \
Smc_send_address ( ((Byte*)&address_sector)[2] ); \
if (smc_64) Smc_send_address ( ((Byte*)&address_sector)[1] )
#define Smc_write_open_C_area(address_sector, nb_byte) \
Smc_wait_busy(); \
Smc_send_command (SMC_READ_B_AREA_CMD); \
Smc_send_command (SMC_SEQUENTIAL_DATA_INPUT_CMD); \
Smc_send_address ( nb_byte ); \
Smc_send_address ( ((Byte*)&address_sector)[3] ); \
Smc_send_address ( ((Byte*)&address_sector)[2] ); \
if (smc_64) Smc_send_address ( ((Byte*)&address_sector)[1] ) ;
#define Smc_read_open_A_area(address_sector, nb_byte) \
Smc_wait_busy(); \
Smc_send_command (SMC_READ_A_AREA_CMD); \
Smc_send_address ( nb_byte ); \
Smc_send_address ( ((Byte*)&address_sector)[3] ); \
Smc_send_address ( ((Byte*)&address_sector)[2] ); \
if (smc_64) Smc_send_address ( ((Byte*)&address_sector)[1] ); \
Smc_wait_busy();
#define Smc_read_open_B_area(address_sector, nb_byte) \
Smc_wait_busy(); \
Smc_send_command (SMC_READ_B_AREA_CMD); \
Smc_send_address ( nb_byte ); \
Smc_send_address ( ((Byte*)&address_sector)[3] ); \
Smc_send_address ( ((Byte*)&address_sector)[2] ); \
if (smc_64) Smc_send_address ( ((Byte*)&address_sector)[1] ); \
Smc_wait_busy();
#define Smc_read_open_C_area(address_sector, nb_byte) \
Smc_wait_busy(); \
Smc_send_command (SMC_READ_C_AREA_CMD); \
Smc_send_address ( nb_byte ); \
Smc_send_address ( ((Byte*)&address_sector)[3] ); \
Smc_send_address ( ((Byte*)&address_sector)[2] ); \
if (smc_64) Smc_send_address ( ((Byte*)&address_sector)[1] ); \
Smc_wait_busy()
/*_____ D E C L A R A T I O N ______________________________________________*/
extern xdata Uint32 smc_disk_size;
void smc_init_buffer(void); /* Initialize the buffer gl_buffer with 0xFF */
void smc_copy_block_head(void); /* Copy the first sectors of a block */
void smc_copy_block_tail(void); /* Copy the last sectors of a block */
void smc_reassign_block(void); /* reassign the physical block on the look up table */
bit smc_block_erase (Uint32); /* Erase one block */
bit smc_erase_all_block(void); /* Erase all block */
void smc_init_spare(void); /* Init the first redundant data of a block */
void smc_calc_logical_block(); /* Calulate the value of logical block in spare area */
void smc_update_spare_data(void); /* Write only the redundant information */
void smc_calculate_ecc(void);
void read_spare_byte(void);
extern void smc_download_buffer(void); /* Copy the content of gl_buffer on the card */
extern void smc_upload_buffer(void); /* Load the content of the card on gl_buffer */
extern void smc_usb_to_buff_64(Byte); /* Transfer 64 bytes from USB to gl_buffer */
extern void smc_download_buff_64(Byte); /* Transfer 64 bytes from gl_buffer to media */
#endif /* _SMC_DRV_H_ */
