diff options
Diffstat (limited to 'drivers/scsi/aha1542.c')
| -rw-r--r-- | drivers/scsi/aha1542.c | 65 |
1 files changed, 35 insertions, 30 deletions
diff --git a/drivers/scsi/aha1542.c b/drivers/scsi/aha1542.c index 4bfba454a032..b8e495243cf6 100644 --- a/drivers/scsi/aha1542.c +++ b/drivers/scsi/aha1542.c @@ -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; |