基于AT89C51SND1的MP3的程序设计(包括播放mp3和录音功能)
源代码在线查看： mmc_drv.h
/*H**************************************************************************
* NAME: mmc_drv.h
*----------------------------------------------------------------------------
* Copyright (c) 2003 Atmel.
*----------------------------------------------------------------------------
* RELEASE: snd1c-refd-nf-4_0_3
* REVISION: 1.8
*----------------------------------------------------------------------------
* PURPOSE:
* This file contains the MMC driver definitions
*****************************************************************************/
#ifndef _MMC_DRV_H_
#define _MMC_DRV_H_
/*_____ I N C L U D E S ____________________________________________________*/
/*_____ M A C R O S ________________________________________________________*/
/* Commands */
#define MMC_GO_IDLE_STATE ((Byte)0)
#define MMC_SEND_OP_COND ((Byte)1)
#define MMC_ALL_SEND_CID ((Byte)2)
#define MMC_SET_RELATIVE_ADDRESS ((Byte)3)
#define SD_SEND_RELATIVE_ADDRESS ((Byte)3) /* specific command for SD */
#define MMC_SET_DSR ((Byte)4)
#define MMC_SELECT_CARD ((Byte)7)
#define MMC_SEND_CSD ((Byte)9)
#define MMC_SEND_CID ((Byte)10)
#define MMC_READ_DATA_UNTIL_STOP ((Byte)11)
#define MMC_STOP_TRANSMISSION ((Byte)12)
#define MMC_SEND_STATUS ((Byte)13)
#define MMC_GO_INACTIVE_STATE ((Byte)15)
#define MMC_SET_BLOCK_LEN ((Byte)16)
#define MMC_READ_SINGLE_BLOCK ((Byte)17)
#define MMC_READ_MULTIPLE_BLOCK ((Byte)18)
#define MMC_WRITE_DATA_UNTIL_STOP ((Byte)20)
#define MMC_WRITE_SINGLE_BLOCK ((Byte)24)
#define MMC_WRITE_MULTIPLE_BLOCK ((Byte)25)
#define MMC_PROGRAM_CSD ((Byte)27)
#define MMC_TAG_SECTOR_START ((Byte)32)
#define MMC_TAG_SECTOR_END ((Byte)33)
#define MMC_UNTAG_SECTOR ((Byte)34)
#define MMC_TAG_ERASE_GRP_START ((Byte)35)
#define MMC_TAG_ERASE_GRP_END ((Byte)36)
#define MMC_UNTAG_ERASE_GRP ((Byte)37)
#define MMC_ERASE ((Byte)38)
#define SD_APP_OP_COND ((Byte)41) /* specific command for SD */
#define MMC_APP_CMD ((Byte)55)
/* Responses */
#define MMC_OCR_INIT ((Uint32)0x80100000)
#define MMC_BUSY_OCR ((Byte)0x80)
#define MMC_STBY_STATE_MSK ((Uint32)0x01D81E00)
#define MMC_STBY_STATE ((Uint32)0x00000600) /* stby state */
#define MMC_DATA_STATE_MSK ((Uint32)0xE0040E00)
#define MMC_DATA_STATE ((Uint32)0x00000A00) /* data state */
#define MMC_RCV_STATE_MSK ((Uint32)0xE0020E00)
#define MMC_RCV_STATE ((Uint32)0x00000A00) /* rcv state */
#define MMC_TRAN_STATE_MSK ((Uint32)0xE0020E00)
#define MMC_TRAN_STATE ((Uint32)0x00000800) /* tran state */
/* CSD register */
#define CSD_POS_RBP ((Byte)6)
#define CSD_MSK_RBP ((Byte)0x80)
#define CSD_POS_RBL ((Byte)5)
#define CSD_MSK_RBL ((Byte)0x0F)
#define CSD_POS_CSH ((Byte)6)
#define CSD_POS_CSM ((Byte)7)
#define CSD_POS_CSL ((Byte)8)
#define CSD_MSK_CSH ((Byte)0x03)
#define CSD_MSK_CSL ((Byte)0xC0)
#define CSD_MSK_CSM ((Byte)0x07)
#define CSD_BLEN_2048 ((Byte)11)
#define CSD_BLEN_512 ((Byte)9)
/* Functions parameters & returns */
#define MMC_NO_ARG ((Uint32)0xFFFFFFFF) /* [31:0] Stuff bits */
#define MMC_NO_RESP ((Byte)0)
#define MMC_RESP_R1 ((Byte)1)
#define MMC_RESP_R2 ((Byte)2)
#define MMC_RESP_R3 ((Byte)3)
#define MMC_RESP_R4 ((Byte)4)
#define MMC_RESP_R5 ((Byte)5)
#define SD_RESP_R6 ((Byte)6) /* specific response for SD */
#define MMC_ERR_RESP ((bit)FALSE)
#define MMC_RESP_OK ((bit)TRUE)
/*_____ D E F I N I T I O N ________________________________________________*/
/*_____ D E C L A R A T I O N ______________________________________________*/
/* Control */
void mmc_set_prio (Byte);
void mmc_send_cmd (Byte, Uint32, Byte);
bit mmc_check_response (void);
#define Mmc_set_clock(clock) (MMCLK = clock)
#define Mmc_reset() (MMCON2 |= (MSK_DCR | MSK_CCR)); (MMCON2 &= ~(MSK_DCR | MSK_CCR))
#define Mmc_reset_cmd_fifos() (MMCON0 |= (MSK_CRPTR | MSK_CTPTR)); (MMCON0 &= ~(MSK_CRPTR | MSK_CTPTR))
#define Mmc_reset_data_fifos() (MMCON0 |= (MSK_DRPTR | MSK_DTPTR)); (MMCON0 &= ~(MSK_DRPTR | MSK_DTPTR))
#define Mmc_enable() (MMCON2 |= (MSK_MMCEN | MSK_DATD)) //Debug
#define Mmc_disable() (MMCON2 &= ~(MSK_MMCEN | MSK_DATD))//Debug
#define Mmc_mask_int_set(i) (MMMSK |= (i))
#define Mmc_mask_int_clr(i) (MMMSK &= ~(i))
#define Mmc_mask_int_inv(i) (MMMSK ^= i)
#define Mmc_enable_int() (IEN1 |= MSK_EMMC)
#define Mmc_disable_int() (IEN1 &= ~MSK_EMMC)
#define Mmc_card_busy() ((MMSTA & MSK_CBUSY) == MSK_CBUSY)
#define Mmc_enable_flow_ctrl() (MMCON2 |= MSK_FLOWC)
#define Mmc_disable_flow_ctrl() (MMCON2 &= ~MSK_FLOWC)
/* Data */
#define Mmc_set_write() (MMCON1 |= MSK_DATDIR)
#define Mmc_set_read() (MMCON1 &= ~MSK_DATDIR)
#define Mmc_set_block_size(s) (MMCON1 = (MMCON1 & ~MSK_BLEN) | (s #define Mmc_rd_block_size() ((MMCON1 & MSK_BLEN) >> 4)
#define Mmc_set_stream() (MMCON0 &= ~MSK_DFMT)
#define Mmc_set_multi_block() (MMCON0 |= (MSK_MBLOCK | MSK_DFMT))
#define Mmc_set_single_block() (MMCON0 |= MSK_DFMT); (MMCON0 &= ~MSK_MBLOCK)
#define Mmc_enable_send() (MMCON1 |= MSK_DATEN); (MMCON1 &= ~MSK_DATEN)
#define Mmc_rd_byte() (MMDAT)
#define Mmc_rd_word() ((Uint16)(MMDAT | (MMDAT #define Mmc_wr_byte(b) (MMDAT = b)
#define Mmc_write_not_ready() ((MMINT & (MSK_F2FI | MSK_F1FI )) == (MSK_F2FI | MSK_F1FI))
#define Mmc_write_busy() ((MMINT & MSK_F1EI) != MSK_F1EI)
#define Mmc_read_ready() ((MMINT & MSK_F1FI) == MSK_F1FI)
#define Mmc_end_of_block_read() ((MMINT & (MSK_F2EI | MSK_F1EI)) == (MSK_F2EI | MSK_F1EI))
#define Mmc_data_sent() ((MMINT & MSK_EOFI) == MSK_EOFI)
#define Mmc_empty_fifos() ((MMINT & (MSK_F2EI | MSK_F1EI)) == (MSK_F2EI | MSK_F1EI))
/* Command & Response */
void mmc_send_cmd (Byte, Uint32, Byte);
void mmc_send_scmd (Byte, Byte);
Uint32 mmc_read_response (void);
#define Mmc_rd_cmd() (MMCMD)
#define Mmc_wr_cmd(b) (MMCMD = b)
#define Mmc_command_sent() ((MMINT & MSK_EOCI) == MSK_EOCI)
#define Mmc_response_received() ((MMINT & MSK_EORI) == MSK_EORI)
#define Mmc_write_block_cmd(a) mmc_send_cmd(MMC_WRITE_SINGLE_BLOCK, a, MMC_RESP_R1)
#define Mmc_write_multiple_block_cmd(a) mmc_send_cmd(MMC_WRITE_MULTIPLE_BLOCK, a, MMC_RESP_R1)
#define Mmc_read_block_cmd(a) mmc_send_cmd(MMC_READ_SINGLE_BLOCK, a, MMC_RESP_R1)
#define Mmc_read_multiple_block_cmd(a) mmc_send_cmd(MMC_READ_MULTIPLE_BLOCK, a, MMC_RESP_R1)
#define Mmc_read_stream_cmd(a) mmc_send_cmd(MMC_READ_DATA_UNTIL_STOP, a, MMC_RESP_R1)
#define Mmc_stop_tran_cmd() mmc_send_scmd(MMC_STOP_TRANSMISSION, MMC_RESP_R1)
#define Mmc_stop_stream_cmd() mmc_send_scmd(MMC_STOP_TRANSMISSION, MMC_RESP_R1)
#endif /* _MMC_DRV_H_ */
