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| author | jkh <jkh@FreeBSD.org> | 1994-10-28 13:19:42 +0000 |
|---|---|---|
| committer | jkh <jkh@FreeBSD.org> | 1994-10-28 13:19:42 +0000 |
| commit | 685a08f618f1d6486b02feef5b92ac3394ea6396 (patch) | |
| tree | f25bfc481f2cb006b34dbf02b521cbcb41bb9726 /sys/scsi/st.c | |
| parent | 076633a669c18cf80f86ceecd10b4d49f02cd834 (diff) | |
| download | FreeBSD-src-685a08f618f1d6486b02feef5b92ac3394ea6396.zip FreeBSD-src-685a08f618f1d6486b02feef5b92ac3394ea6396.tar.gz | |
Andreas Klemm's tape erase patches from 1.1.5.1
Submitted by: andreas
Diffstat (limited to 'sys/scsi/st.c')
| -rw-r--r-- | sys/scsi/st.c | 47 |
1 files changed, 46 insertions, 1 deletions
diff --git a/sys/scsi/st.c b/sys/scsi/st.c index 8cfbf8d..24a3303 100644 --- a/sys/scsi/st.c +++ b/sys/scsi/st.c @@ -12,7 +12,7 @@ * on the understanding that TFS is not responsible for the correct * functioning of this software in any circumstances. * - * $Id: st.c,v 1.20 1994/10/19 00:09:47 wollman Exp $ + * $Id: st.c,v 1.21 1994/10/23 21:27:59 wollman Exp $ */ /* @@ -153,6 +153,7 @@ static struct rogues gallery[] = /* ends with an all-null entry */ errval st_space __P((u_int32 unit, int32 number, u_int32 what, u_int32 flags)); errval st_rewind __P((u_int32 unit, boolean immed, u_int32 flags)); +errval st_erase __P((u_int32 unit, boolean immed, u_int32 flags)); /* AKL */ errval st_mode_sense __P((u_int32 unit, u_int32 flags)); errval st_decide_mode __P((u_int32 unit, boolean first_read)); errval st_rd_blk_lim __P((u_int32 unit, u_int32 flags)); @@ -1229,6 +1230,9 @@ stioctl(dev, cmd, arg, flag) case MTREW: /* rewind */ errcode = st_rewind(unit, FALSE, flags); break; + case MTERASE: /* erase - AKL */ + errcode = st_erase(unit, FALSE, flags); + break; case MTOFFL: /* rewind and put the drive offline */ st_unmount(unit, EJECT); break; @@ -1795,6 +1799,47 @@ st_rewind(unit, immed, flags) flags)); } +/* +** Erase the device - AKL: Andreas Klemm <andreas@knobel.gun.de> +*/ +errval +st_erase(unit, immed, flags) + u_int32 unit, flags; + boolean immed; +{ + struct scsi_erase scsi_cmd; + struct st_data *st = st_data[unit]; + errval error; + int32 nmarks; + + error = st_chkeod(unit, FALSE, &nmarks, flags); + if (error != ESUCCESS) + return (error); + /* + ** AKL: Archive Viper 2525 technical manual 5.7 (ERASE 19h): + ** tape has to be positioned to BOT first before erase command + ** is issued or command is rejected. So we rewind the tape first + ** and exit with an error, if the tape can't be rewinded. + */ + error = st_rewind(unit, FALSE, SCSI_SILENT); + if (error != ESUCCESS) + return (error); + st->flags &= ~ST_PER_ACTION; + bzero(&scsi_cmd, sizeof(scsi_cmd)); + scsi_cmd.op_code = ERASE; + scsi_cmd.byte2 = SE_LONG; /* LONG_ERASE - AKL */ + scsi_cmd.byte2 += immed ? SE_IMMED : 0; /* immed bit is here the 2nd! */ + return (scsi_scsi_cmd(st->sc_link, + (struct scsi_generic *) &scsi_cmd, + sizeof(scsi_cmd), + 0, + 0, + ST_RETRIES, + immed ? 5000 : 300000, /* 5 sec or 5 min */ + NULL, + flags)); +} + #ifdef NETBSD #define SIGNAL_SHORT_READ #else |
