コード例 #1
0
ファイル: cio.c プロジェクト: Dronevery/JetsonTK1-kernel
/*
 * halt I/O operation
 */
int
cio_halt(struct subchannel *sch)
{
	char dbf_txt[15];
	int ccode;

	if (!sch)
		return -ENODEV;

	CIO_TRACE_EVENT (2, "haltIO");
	CIO_TRACE_EVENT (2, sch->dev.bus_id);

	/*
	 * Issue "Halt subchannel" and process condition code
	 */
	ccode = hsch (sch->irq);

	sprintf (dbf_txt, "ccode:%d", ccode);
	CIO_TRACE_EVENT (2, dbf_txt);

	switch (ccode) {
	case 0:
		sch->schib.scsw.actl |= SCSW_ACTL_HALT_PEND;
		return 0;
	case 1:		/* status pending */
	case 2:		/* busy */
		return -EBUSY;
	default:		/* device not operational */
		return -ENODEV;
	}
}
コード例 #2
0
ファイル: cio.c プロジェクト: a2hojsjsjs/linux
/*
 * halt I/O operation
 */
int
cio_halt(struct subchannel *sch)
{
	int ccode;

	if (!sch)
		return -ENODEV;

	CIO_TRACE_EVENT(2, "haltIO");
	CIO_TRACE_EVENT(2, dev_name(&sch->dev));

	/*
	 * Issue "Halt subchannel" and process condition code
	 */
	ccode = hsch (sch->schid);

	CIO_HEX_EVENT(2, &ccode, sizeof(ccode));

	switch (ccode) {
	case 0:
		sch->schib.scsw.cmd.actl |= SCSW_ACTL_HALT_PEND;
		return 0;
	case 1:		/* status pending */
	case 2:		/* busy */
		return -EBUSY;
	default:		/* device not operational */
		return -ENODEV;
	}
}
コード例 #3
0
int
cio_halt(struct subchannel *sch)
{
	int ccode;

	if (!sch)
		return -ENODEV;

	CIO_TRACE_EVENT(2, "haltIO");
	CIO_TRACE_EVENT(2, dev_name(&sch->dev));

	ccode = hsch (sch->schid);

	CIO_HEX_EVENT(2, &ccode, sizeof(ccode));

	switch (ccode) {
	case 0:
		sch->schib.scsw.cmd.actl |= SCSW_ACTL_HALT_PEND;
		return 0;
	case 1:		
	case 2:		
		return -EBUSY;
	default:		
		return -ENODEV;
	}
}