gdth.h

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        unchar          event;                  /* release event */
        unchar          unused3[3];
        unchar          irqdel;                 /* acknowledge board int. */
        unchar          unused4[3];
    } PACKED io;
} PACKED gdt6_dpram_str;

/* PLX register structure (new PCI controllers) */
typedef struct {
    unchar              cfg_reg;        /* DPRAM cfg.(2:below 1MB,0:anywhere)*/
    unchar              unused1[0x3f];
    unchar volatile     sema0_reg;              /* command semaphore */
    unchar volatile     sema1_reg;              /* status semaphore */
    unchar              unused2[2];
    ushort volatile     status;                 /* command status */
    ushort              service;                /* service */
    ulong32             info[2];                /* additional info */
    unchar              unused3[0x10];
    unchar              ldoor_reg;              /* PCI to local doorbell */
    unchar              unused4[3];
    unchar volatile     edoor_reg;              /* local to PCI doorbell */
    unchar              unused5[3];
    unchar              control0;               /* control0 register(unused) */
    unchar              control1;               /* board interrupts enable */
    unchar              unused6[0x16];
} PACKED gdt6c_plx_regs;

/* DPRAM new PCI controllers */
typedef struct {
    union {
        gdt_dpr_if      ic;                     /* interface area */
        unchar          if_area[0x4000-sizeof(gdt_pci_sram)];
    } u;
    gdt_pci_sram        gdt6sr;                 /* SRAM structure */
} PACKED gdt6c_dpram_str;

/* i960 register structure (PCI MPR controllers) */
typedef struct {
    unchar              unused1[16];
    unchar volatile     sema0_reg;              /* command semaphore */
    unchar              unused2;
    unchar volatile     sema1_reg;              /* status semaphore */
    unchar              unused3;
    ushort volatile     status;                 /* command status */
    ushort              service;                /* service */
    ulong32             info[2];                /* additional info */
    unchar              ldoor_reg;              /* PCI to local doorbell */
    unchar              unused4[11];
    unchar volatile     edoor_reg;              /* local to PCI doorbell */
    unchar              unused5[7];
    unchar              edoor_en_reg;           /* board interrupts enable */
    unchar              unused6[27];
    ulong32             unused7[939];         
    ulong32             severity;       
    char                evt_str[256];           /* event string */
} PACKED gdt6m_i960_regs;

/* DPRAM PCI MPR controllers */
typedef struct {
    gdt6m_i960_regs     i960r;                  /* 4KB i960 registers */
    union {
        gdt_dpr_if      ic;                     /* interface area */
        unchar          if_area[0x3000-sizeof(gdt_pci_sram)];
    } u;
    gdt_pci_sram        gdt6sr;                 /* SRAM structure */
} PACKED gdt6m_dpram_str;


/* PCI resources */
typedef struct {
    struct pci_dev      *pdev;
    ulong               dpmem;                  /* DPRAM address */
    ulong               io;                     /* IO address */
    ulong               io_mm;                  /* IO address mem. mapped */
    unchar              irq;                    /* IRQ */
} gdth_pci_str;


/* controller information structure */
typedef struct {
    struct Scsi_Host    *shost;
    struct list_head    list;
    ushort      	hanum;
    ushort              oem_id;                 /* OEM */
    ushort              type;                   /* controller class */
    ulong32             stype;                  /* subtype (PCI: device ID) */
    ushort              fw_vers;                /* firmware version */
    ushort              cache_feat;             /* feat. cache serv. (s/g,..)*/
    ushort              raw_feat;               /* feat. raw service (s/g,..)*/
    ushort              screen_feat;            /* feat. raw service (s/g,..)*/
    ushort              bmic;                   /* BMIC address (EISA) */
    void __iomem        *brd;                   /* DPRAM address */
    ulong32             brd_phys;               /* slot number/BIOS address */
    gdt6c_plx_regs      *plx;                   /* PLX regs (new PCI contr.) */
    gdth_cmd_str        cmdext;
    gdth_cmd_str        *pccb;                  /* address command structure */
    ulong32             ccb_phys;               /* phys. address */
#ifdef INT_COAL
    gdth_coal_status    *coal_stat;             /* buffer for coalescing int.*/
    ulong64             coal_stat_phys;         /* phys. address */
#endif
    char                *pscratch;              /* scratch (DMA) buffer */
    ulong64             scratch_phys;           /* phys. address */
    unchar              scratch_busy;           /* in use? */
    unchar              dma64_support;          /* 64-bit DMA supported? */
    gdth_msg_str        *pmsg;                  /* message buffer */
    ulong64             msg_phys;               /* phys. address */
    unchar              scan_mode;              /* current scan mode */
    unchar              irq;                    /* IRQ */
    unchar              drq;                    /* DRQ (ISA controllers) */
    ushort              status;                 /* command status */
    ushort              service;                /* service/firmware ver./.. */
    ulong32             info;
    ulong32             info2;                  /* additional info */
    Scsi_Cmnd           *req_first;             /* top of request queue */
    struct {
        unchar          present;                /* Flag: host drive present? */
        unchar          is_logdrv;              /* Flag: log. drive (master)? */
        unchar          is_arraydrv;            /* Flag: array drive? */
        unchar          is_master;              /* Flag: array drive master? */
        unchar          is_parity;              /* Flag: parity drive? */
        unchar          is_hotfix;              /* Flag: hotfix drive? */
        unchar          master_no;              /* number of master drive */
        unchar          lock;                   /* drive locked? (hot plug) */
        unchar          heads;                  /* mapping */
        unchar          secs;
        ushort          devtype;                /* further information */
        ulong64         size;                   /* capacity */
        unchar          ldr_no;                 /* log. drive no. */
        unchar          rw_attribs;             /* r/w attributes */
        unchar          cluster_type;           /* cluster properties */
        unchar          media_changed;          /* Flag:MOUNT/UNMOUNT occured */
        ulong32         start_sec;              /* start sector */
    } hdr[MAX_LDRIVES];                         /* host drives */
    struct {
        unchar          lock;                   /* channel locked? (hot plug) */
        unchar          pdev_cnt;               /* physical device count */
        unchar          local_no;               /* local channel number */
        unchar          io_cnt[MAXID];          /* current IO count */
        ulong32         address;                /* channel address */
        ulong32         id_list[MAXID];         /* IDs of the phys. devices */
    } raw[MAXBUS];                              /* SCSI channels */
    struct {
        Scsi_Cmnd       *cmnd;                  /* pending request */
        ushort          service;                /* service */
    } cmd_tab[GDTH_MAXCMDS];                    /* table of pend. requests */
    struct gdth_cmndinfo {                      /* per-command private info */
        int index;
        int internal_command;                   /* don't call scsi_done */
        dma_addr_t sense_paddr;                 /* sense dma-addr */
        unchar priority;
        int timeout;
        volatile int wait_for_completion;
        ushort status;
        ulong32 info;
        enum dma_data_direction dma_dir;
        int phase;                              /* ???? */
        int OpCode;
    } cmndinfo[GDTH_MAXCMDS];                   /* index==0 is free */
    unchar              bus_cnt;                /* SCSI bus count */
    unchar              tid_cnt;                /* Target ID count */
    unchar              bus_id[MAXBUS];         /* IOP IDs */
    unchar              virt_bus;               /* number of virtual bus */
    unchar              more_proc;              /* more /proc info supported */
    ushort              cmd_cnt;                /* command count in DPRAM */
    ushort              cmd_len;                /* length of actual command */
    ushort              cmd_offs_dpmem;         /* actual offset in DPRAM */
    ushort              ic_all_size;            /* sizeof DPRAM interf. area */
    gdth_cpar_str       cpar;                   /* controller cache par. */
    gdth_bfeat_str      bfeat;                  /* controller features */
    gdth_binfo_str      binfo;                  /* controller info */
    gdth_evt_data       dvr;                    /* event structure */
    spinlock_t          smp_lock;
    struct pci_dev      *pdev;
    char                oem_name[8];
#ifdef GDTH_DMA_STATISTICS
    ulong               dma32_cnt, dma64_cnt;   /* statistics: DMA buffer */
#endif
    struct scsi_device         *sdev;
} gdth_ha_str;

static inline struct gdth_cmndinfo *gdth_cmnd_priv(struct scsi_cmnd* cmd)
{
	return (struct gdth_cmndinfo *)cmd->host_scribble;
}

/* INQUIRY data format */
typedef struct {
    unchar      type_qual;
    unchar      modif_rmb;
    unchar      version;
    unchar      resp_aenc;
    unchar      add_length;
    unchar      reserved1;
    unchar      reserved2;
    unchar      misc;
    unchar      vendor[8];
    unchar      product[16];
    unchar      revision[4];
} PACKED gdth_inq_data;

/* READ_CAPACITY data format */
typedef struct {
    ulong32     last_block_no;
    ulong32     block_length;
} PACKED gdth_rdcap_data;

/* READ_CAPACITY (16) data format */
typedef struct {
    ulong64     last_block_no;
    ulong32     block_length;
} PACKED gdth_rdcap16_data;

/* REQUEST_SENSE data format */
typedef struct {
    unchar      errorcode;
    unchar      segno;
    unchar      key;
    ulong32     info;
    unchar      add_length;
    ulong32     cmd_info;
    unchar      adsc;
    unchar      adsq;
    unchar      fruc;
    unchar      key_spec[3];
} PACKED gdth_sense_data;

/* MODE_SENSE data format */
typedef struct {
    struct {
        unchar  data_length;
        unchar  med_type;
        unchar  dev_par;
        unchar  bd_length;
    } PACKED hd;
    struct {
        unchar  dens_code;
        unchar  block_count[3];
        unchar  reserved;
        unchar  block_length[3];
    } PACKED bd;
} PACKED gdth_modep_data;

/* stack frame */
typedef struct {
    ulong       b[10];                          /* 32/64 bit compiler ! */
} PACKED gdth_stackframe;


/* function prototyping */

int gdth_proc_info(struct Scsi_Host *, char *,char **,off_t,int,int);

#endif