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Add support for STARTSTOPUNIT command

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This commit is contained in:
Ronnie Sahlberg
2012-07-15 08:10:39 +10:00
parent e6ca1451b0
commit 025136e81c
7 changed files with 120 additions and 0 deletions
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45
lib/scsi-lowlevel.c
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@@ -1521,6 +1521,51 @@ scsi_modesense_datain_unmarshall(struct scsi_task *task)
return ms;
}
/*
* STARTSTOPUNIT
*/
struct scsi_task *
scsi_cdb_startstopunit(int immed, int pcm, int pc, int no_flush, int loej, int start)
{
struct scsi_task *task;
task = malloc(sizeof(struct scsi_task));
if (task == NULL) {
return NULL;
}
memset(task, 0, sizeof(struct scsi_task));
task->cdb[0] = SCSI_OPCODE_STARTSTOPUNIT;
if (immed) {
task->cdb[1] |= 0x01;
}
task->cdb[3] |= pcm & 0x0f;
task->cdb[4] |= (pc << 4) & 0xf0;
if (no_flush) {
task->cdb[4] |= 0x04;
}
if (loej) {
task->cdb[4] |= 0x02;
}
if (start) {
task->cdb[4] |= 0x01;
}
task->cdb_size = 6;
task->xfer_dir = SCSI_XFER_NONE;
task->expxferlen = 0;
task->params.startstopunit.immed = immed;
task->params.startstopunit.pcm = pcm;
task->params.startstopunit.pc = pc;
task->params.startstopunit.no_flush = no_flush;
task->params.startstopunit.loej = loej;
task->params.startstopunit.start = start;
return task;
}
/*
* SYNCHRONIZECACHE10