mindrvr.h

ata和atapi的驱动程序

#define CB_DH_LBA  0x40    // LBA bit
#define CB_DH_DEV0 0x00    // select device 0
#define CB_DH_DEV1 0x10    // select device 1
// #define CB_DH_DEV0 0xa0    // select device 0 (old definition)
// #define CB_DH_DEV1 0xb0    // select device 1 (old definition)

// status reg (CB_STAT and CB_ASTAT) bits

#define CB_STAT_BSY  0x80  // busy
#define CB_STAT_RDY  0x40  // ready
#define CB_STAT_DF   0x20  // device fault
#define CB_STAT_WFT  0x20  // write fault (old name)
#define CB_STAT_SKC  0x10  // seek complete (only SEEK command)
#define CB_STAT_SERV 0x10  // service (overlap/queued commands)
#define CB_STAT_DRQ  0x08  // data request
#define CB_STAT_CORR 0x04  // corrected (obsolete)
#define CB_STAT_IDX  0x02  // index (obsolete)
#define CB_STAT_ERR  0x01  // error (ATA)
#define CB_STAT_CHK  0x01  // check (ATAPI)

// device control reg (CB_DC) bits

#define CB_DC_HOB    0x80  // High Order Byte (48-bit LBA)
// #define CB_DC_HD15   0x00  // bit 3 is reserved
// #define CB_DC_HD15   0x08  // (old definition of bit 3)
#define CB_DC_SRST   0x04  // soft reset
#define CB_DC_NIEN   0x02  // disable interrupts

//**************************************************************
//
// Most mandtory and optional ATA commands
//
//**************************************************************

#define CMD_CFA_ERASE_SECTORS            0xC0
#define CMD_CFA_REQUEST_EXT_ERR_CODE     0x03
#define CMD_CFA_TRANSLATE_SECTOR         0x87
#define CMD_CFA_WRITE_MULTIPLE_WO_ERASE  0xCD
#define CMD_CFA_WRITE_SECTORS_WO_ERASE   0x38
#define CMD_CHECK_POWER_MODE1            0xE5
#define CMD_CHECK_POWER_MODE2            0x98
#define CMD_DEVICE_RESET                 0x08
#define CMD_EXECUTE_DEVICE_DIAGNOSTIC    0x90
#define CMD_FLUSH_CACHE                  0xE7
#define CMD_FLUSH_CACHE_EXT              0xEA
#define CMD_FORMAT_TRACK                 0x50
#define CMD_IDENTIFY_DEVICE              0xEC
#define CMD_IDENTIFY_DEVICE_PACKET       0xA1
#define CMD_IDENTIFY_PACKET_DEVICE       0xA1
#define CMD_IDLE1                        0xE3
#define CMD_IDLE2                        0x97
#define CMD_IDLE_IMMEDIATE1              0xE1
#define CMD_IDLE_IMMEDIATE2              0x95
#define CMD_INITIALIZE_DRIVE_PARAMETERS  0x91
#define CMD_INITIALIZE_DEVICE_PARAMETERS 0x91
#define CMD_NOP                          0x00
#define CMD_PACKET                       0xA0
#define CMD_READ_BUFFER                  0xE4
#define CMD_READ_DMA                     0xC8
#define CMD_READ_DMA_EXT                 0x25
#define CMD_READ_DMA_QUEUED              0xC7
#define CMD_READ_DMA_QUEUED_EXT          0x26
#define CMD_READ_MULTIPLE                0xC4
#define CMD_READ_MULTIPLE_EXT            0x29
#define CMD_READ_SECTORS                 0x20
#define CMD_READ_SECTORS_EXT             0x24
#define CMD_READ_VERIFY_SECTORS          0x40
#define CMD_READ_VERIFY_SECTORS_EXT      0x42
#define CMD_RECALIBRATE                  0x10
#define CMD_SEEK                         0x70
#define CMD_SET_FEATURES                 0xEF
#define CMD_SET_MULTIPLE_MODE            0xC6
#define CMD_SLEEP1                       0xE6
#define CMD_SLEEP2                       0x99
#define CMD_SMART                        0xB0
#define CMD_STANDBY1                     0xE2
#define CMD_STANDBY2                     0x96
#define CMD_STANDBY_IMMEDIATE1           0xE0
#define CMD_STANDBY_IMMEDIATE2           0x94
#define CMD_WRITE_BUFFER                 0xE8
#define CMD_WRITE_DMA                    0xCA
#define CMD_WRITE_DMA_EXT                0x35
#define CMD_WRITE_DMA_QUEUED             0xCC
#define CMD_WRITE_DMA_QUEUED_EXT         0x36
#define CMD_WRITE_MULTIPLE               0xC5
#define CMD_WRITE_MULTIPLE_EXT           0x39
#define CMD_WRITE_SECTORS                0x30
#define CMD_WRITE_SECTORS_EXT            0x34
#define CMD_WRITE_VERIFY                 0x3C

//**************************************************************
//
// ATA and ATAPI PIO support functions
//
//**************************************************************

// config and reset funcitons

extern int reg_config( void );

extern int reg_reset( unsigned char devRtrn );

// ATA Non-Data command funnctions (for LBA28 and LBA48)

extern int reg_non_data_lba28( unsigned char dev, unsigned char cmd,
                               unsigned int fr, unsigned int sc,
                               unsigned long lba );

extern int reg_non_data_lba48( unsigned char dev, unsigned char cmd,
                               unsigned int fr, unsigned int sc,
                               unsigned long lbahi, unsigned long lbalo );

// ATA PIO Data In command functions (for LBA28 and LBA48)

extern int reg_pio_data_in_lba28( unsigned char dev, unsigned char cmd,
                                  unsigned int fr, unsigned int sc,
                                  unsigned long lba,
                                  unsigned char * bufAddr,
                                  long numSect, int multiCnt );

extern int reg_pio_data_in_lba48( unsigned char dev, unsigned char cmd,
                                  unsigned int fr, unsigned int sc,
                                  unsigned long lbahi, unsigned long lbalo,
                                  unsigned char * bufAddr,
                                  long numSect, int multiCnt );

// ATA PIO Data Out command functions (for LBA28 and LBA48)

extern int reg_pio_data_out_lba28( unsigned char dev, unsigned char cmd,
                                   unsigned int fr, unsigned int sc,
                                   unsigned long lba,
                                   unsigned char * bufAddr,
                                   long numSect, int multiCnt );

extern int reg_pio_data_out_lba48( unsigned char dev, unsigned char cmd,
                                   unsigned int fr, unsigned int sc,
                                   unsigned long lbahi, unsigned long lbalo,
                                   unsigned char * bufAddr,
                                   long numSect, int multiCnt );

#if INCLUDE_ATAPI_PIO

// ATAPI Packet PIO function

extern int reg_packet( unsigned char dev,
                       unsigned int cpbc,
                       unsigned char * cdbBufAddr,
                       int dir,
                       long dpbc,
                       unsigned char * dataBufAddr );

#endif   // INCLUDE_ATAPI_PIO

//**************************************************************
//
// ATA and ATAPI DMA support functions
//
//**************************************************************

#if INCLUDE_ATA_DMA || INCLUDE_ATAPI_DMA

// BMIDE registers and bits

#define BM_COMMAND_REG    0            // offset to BM command reg
#define BM_CR_MASK_READ    0x00           // read from memory
#define BM_CR_MASK_WRITE   0x08           // write to memory
#define BM_CR_MASK_START   0x01           // start transfer
#define BM_CR_MASK_STOP    0x00           // stop transfer

#define BM_STATUS_REG     2            // offset to BM status reg
#define BM_SR_MASK_SIMPLEX 0x80           // simplex only
#define BM_SR_MASK_DRV1    0x40           // drive 1 can do dma
#define BM_SR_MASK_DRV0    0x20           // drive 0 can do dma
#define BM_SR_MASK_INT     0x04           // INTRQ signal asserted
#define BM_SR_MASK_ERR     0x02           // error
#define BM_SR_MASK_ACT     0x01           // active

#define BM_PRD_ADDR_LOW   4            // offset to BM prd addr reg low 16 bits
#define BM_PRD_ADDR_HIGH  6            // offset to BM prd addr reg high 16 bits

// PCI DMA setup function (usually called once).

// !!! You may not need this function in your system - see the comments
// !!! for this function in MINDRVR.C.

extern int dma_pci_config( void );

// ATA DMA functions

extern int dma_pci_lba28( unsigned char dev, unsigned char cmd,
                          unsigned int fr, unsigned int sc,
                          unsigned long lba,
                          unsigned char * bufAddr,
                          long numSect );

extern int dma_pci_lba48( unsigned char dev, unsigned char cmd,
                          unsigned int fr, unsigned int sc,
                          unsigned long lbahi, unsigned long lbalo,
                          unsigned char * bufAddr,
                          long numSect );

#endif   // INCLUDE_ATA_DMA or INCLUDE_ATAPI_DMA

#if INCLUDE_ATAPI_DMA

// ATA DMA function

extern int dma_pci_packet( unsigned char dev,
                           unsigned int cpbc,
                           unsigned char * cdbBufAddr,
                           int dir,
                           long dpbc,
                           unsigned char * dataBufAddr );

#endif   // INCLUDE_ATAPI_DMA

// end mindrvr.h