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Annotation of linux/kernel/blk_drv/scsi/sr.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  *      sr.h by David Giller
                      3:  *      CD-ROM disk driver header file
                      4:  *      
                      5:  *      adapted from:
                      6:  *     sd.h Copyright (C) 1992 Drew Eckhardt 
                      7:  *     SCSI disk driver header file by
                      8:  *             Drew Eckhardt 
                      9:  *
                     10:  *     <[email protected]>
                     11:  */
                     12: 
                     13: #ifndef _SR_H
                     14: #define _SR_H
                     15: 
                     16: #include "scsi.h"
                     17: 
                     18: #define MAX_SR 2
                     19: extern int NR_SR;
                     20: 
                     21: typedef struct
                     22:        {
                     23:        unsigned        capacity;               /* size in blocks                       */
                     24:        unsigned        sector_size;            /* size in bytes                        */
                     25:        Scsi_Device     *device;                
                     26:        unsigned char   sector_bit_size;        /* sector size = 2^sector_bit_size      */
                     27:        unsigned char   sector_bit_shift;       /* sectors/FS block = 2^sector_bit_shift*/
                     28:        unsigned        ten:1;                  /* support ten byte commands            */
                     29:        unsigned        remap:1;                /* support remapping                    */
                     30:        unsigned        use:1;                  /* is this device still supportable     */
                     31:        unsigned        changed:1;              /* disk changed flag                    */
                     32:        } Scsi_CD;
                     33:        
                     34: extern Scsi_CD scsi_CDs[MAX_SR];
                     35: 
                     36: void sr_init(void);
                     37: 
                     38: #define SR_HOST (scsi_CDs[DEVICE_NR(CURRENT->dev)].device->host_no)
                     39: #define SR_ID (scsi_CDs[DEVICE_NR(CURRENT->dev)].device->id)
                     40: #define SR_LUN (scsi_CDs[DEVICE_NR(CURRENT->dev)].device->lun)
                     41: #endif

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