Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3) #ifndef _ST_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4) #define _ST_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) #include <linux/completion.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) #include <linux/mutex.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) #include <linux/kref.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include <scsi/scsi_cmnd.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) /* Descriptor for analyzed sense data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) struct st_cmdstatus {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) 	int midlevel_result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) 	struct scsi_sense_hdr sense_hdr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) 	int have_sense;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) 	int residual;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) 	u64 uremainder64;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) 	u8 flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) 	u8 remainder_valid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 	u8 fixed_format;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) 	u8 deferred;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) struct scsi_tape;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) /* scsi tape command */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) struct st_request {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 	unsigned char cmd[MAX_COMMAND_SIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 	unsigned char sense[SCSI_SENSE_BUFFERSIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 	int result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 	struct scsi_tape *stp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 	struct completion *waiting;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 	struct bio *bio;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) /* The tape buffer descriptor. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) struct st_buffer {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 	unsigned char dma;	/* DMA-able buffer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 	unsigned char cleared;  /* internal buffer cleared after open? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	unsigned short do_dio;  /* direct i/o set up? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 	int buffer_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 	int buffer_blocks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 	int buffer_bytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 	int read_pointer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	int writing;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	int syscall_result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 	struct st_request *last_SRpnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 	struct st_cmdstatus cmdstat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	struct page **reserved_pages;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 	int reserved_page_order;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	struct page **mapped_pages;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	struct rq_map_data map_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 	unsigned char *b_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	unsigned short use_sg;	/* zero or max number of s/g segments for this adapter */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	unsigned short sg_segs;		/* number of segments in s/g list */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	unsigned short frp_segs;	/* number of buffer segments */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) /* The tape mode definition */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) struct st_modedef {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 	unsigned char defined;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 	unsigned char sysv;	/* SYS V semantics? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 	unsigned char do_async_writes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	unsigned char do_buffer_writes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	unsigned char do_read_ahead;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	unsigned char defaults_for_writes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	unsigned char default_compression;	/* 0 = don't touch, etc */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 	short default_density;	/* Forced density, -1 = no value */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	int default_blksize;	/* Forced blocksize, -1 = no value */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	struct scsi_tape *tape;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 	struct device *devs[2];  /* Auto-rewind and non-rewind devices */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	struct cdev *cdevs[2];  /* Auto-rewind and non-rewind devices */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) /* Number of modes can be changed by changing ST_NBR_MODE_BITS. The maximum
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76)    number of modes is 16 (ST_NBR_MODE_BITS 4) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) #define ST_NBR_MODE_BITS 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) #define ST_NBR_MODES (1 << ST_NBR_MODE_BITS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) #define ST_MODE_SHIFT (7 - ST_NBR_MODE_BITS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) #define ST_MODE_MASK ((ST_NBR_MODES - 1) << ST_MODE_SHIFT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) #define ST_MAX_TAPES (1 << (20 - (ST_NBR_MODE_BITS + 1)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) #define ST_MAX_TAPE_ENTRIES  (ST_MAX_TAPES << (ST_NBR_MODE_BITS + 1))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) /* The status related to each partition */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) struct st_partstat {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	unsigned char rw;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 	unsigned char eof;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 	unsigned char at_sm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	unsigned char last_block_valid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	u32 last_block_visited;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	int drv_block;		/* The block where the drive head is */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	int drv_file;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) /* Tape statistics */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) struct scsi_tape_stats {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 	atomic64_t read_byte_cnt;  /* bytes read */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	atomic64_t write_byte_cnt; /* bytes written */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	atomic64_t in_flight;      /* Number of I/Os in flight */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	atomic64_t read_cnt;       /* Count of read requests */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 	atomic64_t write_cnt;      /* Count of write requests */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	atomic64_t other_cnt;      /* Count of other requests either
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 				    * implicit or from user space
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 				    * ioctl. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	atomic64_t resid_cnt;      /* Count of resid_len > 0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	atomic64_t tot_read_time;  /* ktime spent completing reads */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	atomic64_t tot_write_time; /* ktime spent completing writes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	atomic64_t tot_io_time;    /* ktime spent doing any I/O */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	ktime_t read_time;         /* holds ktime request was queued */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	ktime_t write_time;        /* holds ktime request was queued */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	ktime_t other_time;        /* holds ktime request was queued */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	atomic_t last_read_size;   /* Number of bytes issued for last read */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	atomic_t last_write_size;  /* Number of bytes issued for last write */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) #define ST_NBR_PARTITIONS 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) /* The tape drive descriptor */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) struct scsi_tape {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	struct scsi_driver *driver;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	struct scsi_device *device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 	struct mutex lock;	/* For serialization */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	struct completion wait;	/* For SCSI commands */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	struct st_buffer *buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	int index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	/* Drive characteristics */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 	unsigned char omit_blklims;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 	unsigned char do_auto_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 	unsigned char can_bsr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 	unsigned char can_partitions;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	unsigned char two_fm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 	unsigned char fast_mteom;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	unsigned char immediate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 	unsigned char restr_dma;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 	unsigned char scsi2_logical;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	unsigned char default_drvbuffer;	/* 0xff = don't touch, value 3 bits */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	unsigned char cln_mode;			/* 0 = none, otherwise sense byte nbr */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 	unsigned char cln_sense_value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	unsigned char cln_sense_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 	unsigned char use_pf;			/* Set Page Format bit in all mode selects? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 	unsigned char try_dio;			/* try direct i/o in general? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	unsigned char try_dio_now;		/* try direct i/o before next close? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 	unsigned char c_algo;			/* compression algorithm */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 	unsigned char pos_unknown;			/* after reset position unknown */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 	unsigned char sili;			/* use SILI when reading in variable b mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	unsigned char immediate_filemark;	/* write filemark immediately */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	int tape_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 	int long_timeout;	/* timeout for commands known to take long time */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 	/* Mode characteristics */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 	struct st_modedef modes[ST_NBR_MODES];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 	int current_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 	/* Status variables */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	int partition;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	int new_partition;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 	int nbr_partitions;	/* zero until partition support enabled */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	struct st_partstat ps[ST_NBR_PARTITIONS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 	unsigned char dirty;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	unsigned char ready;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	unsigned char write_prot;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	unsigned char drv_write_prot;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 	unsigned char in_use;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	unsigned char blksize_changed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 	unsigned char density_changed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	unsigned char compression_changed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	unsigned char drv_buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	unsigned char density;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	unsigned char door_locked;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	unsigned char autorew_dev;   /* auto-rewind device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	unsigned char rew_at_close;  /* rewind necessary at close */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	unsigned char inited;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	unsigned char cleaning_req;  /* cleaning requested? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	int block_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 	int min_block;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	int max_block;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	int recover_count;     /* From tape opening */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	int recover_reg;       /* From last status call */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) #if DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 	unsigned char write_pending;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	int nbr_finished;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	int nbr_waits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	int nbr_requests;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	int nbr_dio;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	int nbr_pages;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 	unsigned char last_cmnd[6];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	unsigned char last_sense[16];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	struct gendisk *disk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	struct kref     kref;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	struct scsi_tape_stats *stats;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) /* Bit masks for use_pf */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) #define USE_PF      1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) #define PF_TESTED   2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) /* Values of eof */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) #define	ST_NOEOF	0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) #define ST_FM_HIT       1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) #define ST_FM           2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) #define ST_EOM_OK       3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) #define ST_EOM_ERROR	4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) #define	ST_EOD_1        5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) #define ST_EOD_2        6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) #define ST_EOD		7
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) /* EOD hit while reading => ST_EOD_1 => return zero => ST_EOD_2 =>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211)    return zero => ST_EOD, return ENOSPC */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) /* When writing: ST_EOM_OK == early warning found, write OK
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 		 ST_EOD_1  == allow trying new write after early warning
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 		 ST_EOM_ERROR == early warning found, not able to write all */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) /* Values of rw */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) #define	ST_IDLE		0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) #define	ST_READING	1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) #define	ST_WRITING	2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) /* Values of ready state */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) #define ST_READY	0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) #define ST_NOT_READY	1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) #define ST_NO_TAPE	2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) /* Values for door lock state */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) #define ST_UNLOCKED	0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) #define ST_LOCKED_EXPLICIT 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) #define ST_LOCKED_AUTO  2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) #define ST_LOCK_FAILS   3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) /* Positioning SCSI-commands for Tandberg, etc. drives */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) #define	QFA_REQUEST_BLOCK	0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) #define	QFA_SEEK_BLOCK		0x0c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) /* Setting the binary options */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) #define ST_DONT_TOUCH  0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) #define ST_NO          1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) #define ST_YES         2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) #define EXTENDED_SENSE_START  18
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) /* Masks for some conditions in the sense data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) #define SENSE_FMK   0x80
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) #define SENSE_EOM   0x40
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) #define SENSE_ILI   0x20
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) #endif