ide: add ide_legacy_init_one() helper

Move the common code for primary/seconary port setup from
ide_legacy_device_add() to ide_legacy_init_one().

There should be no functional changes caused by this patch.
Signed-off-by: default avatarBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
parent 2305d943
......@@ -1630,40 +1630,50 @@ void ide_port_scan(ide_hwif_t *hwif)
}
EXPORT_SYMBOL_GPL(ide_port_scan);
int ide_legacy_device_add(const struct ide_port_info *d, unsigned long config)
static void ide_legacy_init_one(u8 *idx, hw_regs_t *hw, u8 port_no,
const struct ide_port_info *d,
unsigned long config)
{
ide_hwif_t *hwif, *mate;
u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
hw_regs_t hw[2];
memset(&hw, 0, sizeof(hw));
ide_hwif_t *hwif;
unsigned long base, ctl;
int irq;
ide_std_init_ports(&hw[0], 0x1f0, 0x3f6);
hw[0].irq = 14;
if (port_no == 0) {
base = 0x1f0;
ctl = 0x3f6;
irq = 14;
} else {
base = 0x170;
ctl = 0x376;
irq = 15;
}
ide_std_init_ports(&hw[1], 0x170, 0x376);
hw[1].irq = 15;
ide_std_init_ports(hw, base, ctl);
hw->irq = irq;
hwif = ide_find_port_slot(d);
if (hwif) {
u8 j = (d->host_flags & IDE_HFLAG_QD_2ND_PORT) ? 1 : 0;
ide_init_port_hw(hwif, &hw[j]);
ide_init_port_hw(hwif, hw);
if (config)
hwif->config_data = config;
idx[j] = hwif->index;
idx[port_no] = hwif->index;
}
}
if (hwif == NULL && (d->host_flags & IDE_HFLAG_SINGLE))
return -ENOENT;
int ide_legacy_device_add(const struct ide_port_info *d, unsigned long config)
{
u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
hw_regs_t hw[2];
mate = ide_find_port_slot(d);
if (mate) {
ide_init_port_hw(mate, &hw[1]);
if (config)
mate->config_data = config;
idx[1] = mate->index;
}
memset(&hw, 0, sizeof(hw));
if ((d->host_flags & IDE_HFLAG_QD_2ND_PORT) == 0)
ide_legacy_init_one(idx, &hw[0], 0, d, config);
ide_legacy_init_one(idx, &hw[1], 1, d, config);
if (idx[0] == 0xff && idx[1] == 0xff &&
(d->host_flags & IDE_HFLAG_SINGLE))
return -ENOENT;
ide_device_add(idx, d);
......
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