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aha1542: split out code from aha1542_hw_init 

Split out bus times related block of aha1542_hw_init into separate function
aha1542_set_bus_times.

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
This commit is contained in:
Ondrej Zary 2015-02-06 23:11:38 +01:00 committed by James Bottomley
parent 8537cba8b6
commit b847fd0d85
1 changed files with 35 additions and 30 deletions
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65
drivers/scsi/aha1542.c
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@ -867,6 +867,40 @@ static int __init do_setup(char *str)
__setup("aha1542=",do_setup);
#endif
/* Set the Bus on/off-times as not to ruin floppy performance */
static void aha1542_set_bus_times(int indx)
{
unsigned int base_io = bases[indx];
u8 oncmd[] = {CMD_BUSON_TIME, 7};
u8 offcmd[] = {CMD_BUSOFF_TIME, 5};
if (setup_called[indx]) {
oncmd[1] = setup_buson[indx];
offcmd[1] = setup_busoff[indx];
}
aha1542_intr_reset(base_io);
aha1542_out(base_io, oncmd, 2);
if (!wait_mask(INTRFLAGS(base_io), INTRMASK, HACC, 0, 0))
goto fail;
aha1542_intr_reset(base_io);
aha1542_out(base_io, offcmd, 2);
if (!wait_mask(INTRFLAGS(base_io), INTRMASK, HACC, 0, 0))
goto fail;
if (setup_dmaspeed[indx] >= 0) {
u8 dmacmd[] = {CMD_DMASPEED, 0};
dmacmd[1] = setup_dmaspeed[indx];
aha1542_intr_reset(base_io);
aha1542_out(base_io, dmacmd, 2);
if (!wait_mask(INTRFLAGS(base_io), INTRMASK, HACC, 0, 0))
goto fail;
}
aha1542_intr_reset(base_io);
return;
fail:
printk(KERN_ERR "setting bus on/off-time failed\n");
aha1542_intr_reset(base_io);
}
/* return non-zero on detection */
static struct Scsi_Host *aha1542_hw_init(struct scsi_host_template *tpnt, struct device *pdev, int indx)
{
@ -897,37 +931,8 @@ static struct Scsi_Host *aha1542_hw_init(struct scsi_host_template *tpnt, struct
base_io = bases[indx];
/* Set the Bus on/off-times as not to ruin floppy performance */
{
u8 oncmd[] = {CMD_BUSON_TIME, 7};
u8 offcmd[] = {CMD_BUSOFF_TIME, 5};
aha1542_set_bus_times(indx);
if (setup_called[indx]) {
oncmd[1] = setup_buson[indx];
offcmd[1] = setup_busoff[indx];
}
aha1542_intr_reset(base_io);
aha1542_out(base_io, oncmd, 2);
if (!wait_mask(INTRFLAGS(base_io), INTRMASK, HACC, 0, 0))
goto fail;
aha1542_intr_reset(base_io);
aha1542_out(base_io, offcmd, 2);
if (!wait_mask(INTRFLAGS(base_io), INTRMASK, HACC, 0, 0))
goto fail;
if (setup_dmaspeed[indx] >= 0) {
u8 dmacmd[] = {CMD_DMASPEED, 0};
dmacmd[1] = setup_dmaspeed[indx];
aha1542_intr_reset(base_io);
aha1542_out(base_io, dmacmd, 2);
if (!wait_mask(INTRFLAGS(base_io), INTRMASK, HACC, 0, 0))
goto fail;
}
while (0) {
fail:
printk(KERN_ERR "aha1542_detect: setting bus on/off-time failed\n");
}
aha1542_intr_reset(base_io);
}
if (aha1542_query(base_io, &trans))
goto unregister;