Subversion Repositories or1k

/*

 * eata_set_info

 * buffer : pointer to the data that has been written to the hostfile

 * length : number of bytes written to the hostfile

 * HBA_ptr: pointer to the Scsi_Host struct

 */

int eata_pio_set_info(char *buffer, int length, struct Scsi_Host *HBA_ptr)

{

    DBG(DBG_PROC_WRITE, printk("%s\n", buffer));

    return(-ENOSYS);  /* Currently this is a no-op */

}

/*

 * eata_proc_info

 * inout : decides on the direction of the dataflow and the meaning of the

 *         variables

 * buffer: If inout==FALSE data is being written to it else read from it

 * *start: If inout==FALSE start of the valid data in the buffer

 * offset: If inout==FALSE offset from the beginning of the imaginary file

 *         from which we start writing into the buffer

 * length: If inout==FALSE max number of bytes to be written into the buffer

 *         else number of bytes in the buffer

 */

int eata_pio_proc_info(char *buffer, char **start, off_t offset, int length,

                       int hostno, int inout)

{

    Scsi_Device *scd;

    struct Scsi_Host *HBA_ptr;

    static u8 buff[512];

    int i;

    int   size, len = 0;

    off_t begin = 0;

    off_t pos = 0;

    HBA_ptr = first_HBA;

    for (i = 1; i <= registered_HBAs; i++) {

        if (HBA_ptr->host_no == hostno)

            break;

        HBA_ptr = SD(HBA_ptr)->next;

    }

    if(inout == TRUE) /* Has data been written to the file ? */

        return(eata_pio_set_info(buffer, length, HBA_ptr));

    if (offset == 0)

        memset(buff, 0, sizeof(buff));

    size = sprintf(buffer+len, "EATA (Extended Attachment) PIO driver version: "

                   "%d.%d%s\n",VER_MAJOR, VER_MINOR, VER_SUB);

    len += size; pos = begin + len;

    size = sprintf(buffer + len, "queued commands:     %10ld\n"

                   "processed interrupts:%10ld\n", queue_counter, int_counter);

    len += size; pos = begin + len;

    size = sprintf(buffer + len, "\nscsi%-2d: HBA %.10s\n",

                   HBA_ptr->host_no, SD(HBA_ptr)->name);

    len += size;

    pos = begin + len;

    size = sprintf(buffer + len, "Firmware revision: v%s\n",

                   SD(HBA_ptr)->revision);

    len += size;

    pos = begin + len;

    size = sprintf(buffer + len, "IO: PIO\n");

    len += size;

    pos = begin + len;

    size = sprintf(buffer + len, "Base IO : %#.4x\n", (u32) HBA_ptr->base);

    len += size;

    pos = begin + len;

    size = sprintf(buffer + len, "Host Bus: %s\n",

                   (SD(HBA_ptr)->bustype == 'P')?"PCI ":

                   (SD(HBA_ptr)->bustype == 'E')?"EISA":"ISA ");

    len += size;

    pos = begin + len;

    if (pos < offset) {

        len = 0;

        begin = pos;

    }

    if (pos > offset + length)

        goto stop_output;

    scd = scsi_devices;

    size = sprintf(buffer+len,"Attached devices: %s\n", (scd)?"":"none");

    len += size;

    pos = begin + len;

    while (scd) {

        if (scd->host == HBA_ptr) {

            proc_print_scsidevice(scd, buffer, &size, len);

            len += size;

            pos = begin + len;

            if (pos < offset) {

                len = 0;

                begin = pos;

            }

            if (pos > offset + length)

                goto stop_output;

        }

        scd = scd->next;

    }

 stop_output:

    DBG(DBG_PROC, printk("2pos: %ld offset: %ld len: %d\n", pos, offset, len));

    *start=buffer+(offset-begin);   /* Start of wanted data */

    len-=(offset-begin);            /* Start slop */

    if(len>length)

        len = length;               /* Ending slop */

    DBG(DBG_PROC, printk("3pos: %ld offset: %ld len: %d\n", pos, offset, len));

    return (len);

}

/*

 * Overrides for Emacs so that we follow Linus's tabbing style.

 * Emacs will notice this stuff at the end of the file and automatically

 * adjust the settings for this buffer only.  This must remain at the end

 * of the file.

 * ---------------------------------------------------------------------------

 * Local variables:

 * c-indent-level: 4

 * c-brace-imaginary-offset: 0

 * c-brace-offset: -4

 * c-argdecl-indent: 4

 * c-label-offset: -4

 * c-continued-statement-offset: 4

 * c-continued-brace-offset: 0

 * tab-width: 8

 * End:

 */