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atp870u: Introduce atp870_init()

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Move 870-specific init code to a separate function atp870_init()

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Ondrej Zary 2015-11-17 19:24:28 +01:00 committed by Martin K. Petersen
parent ecc6ff95d1
commit 4190230edb
1 changed files with 53 additions and 49 deletions
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102
drivers/scsi/atp870u.c
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@ -1249,6 +1249,57 @@ static void atp_set_host_id(struct atp_unit *atp, u8 c, u8 host_id)
atp_writeb_io(atp, c, 0x11, 0x20);
}
static void atp870_init(struct Scsi_Host *shpnt)
{
struct atp_unit *atpdev = shost_priv(shpnt);
struct pci_dev *pdev = atpdev->pdev;
unsigned char k, host_id;
u8 scam_on;
bool wide_chip =
(pdev->device == PCI_DEVICE_ID_ARTOP_AEC7610 &&
pdev->revision == 4) ||
(pdev->device == PCI_DEVICE_ID_ARTOP_AEC7612UW) ||
(pdev->device == PCI_DEVICE_ID_ARTOP_AEC7612SUW);
pci_read_config_byte(pdev, 0x49, &host_id);
dev_info(&pdev->dev, "ACARD AEC-671X PCI Ultra/W SCSI-2/3 Host Adapter: IO:%lx, IRQ:%d.\n",
shpnt->io_port, shpnt->irq);
atpdev->ioport[0] = shpnt->io_port;
atpdev->pciport[0] = shpnt->io_port + 0x20;
host_id &= 0x07;
atpdev->host_id[0] = host_id;
scam_on = atp_readb_pci(atpdev, 0, 2);
atpdev->global_map[0] = atp_readb_base(atpdev, 0x2d);
atpdev->ultra_map[0] = atp_readw_base(atpdev, 0x2e);
if (atpdev->ultra_map[0] == 0) {
scam_on = 0x00;
atpdev->global_map[0] = 0x20;
atpdev->ultra_map[0] = 0xffff;
}
if (pdev->revision > 0x07) /* check if atp876 chip */
atp_writeb_base(atpdev, 0x3e, 0x00); /* enable terminator */
k = (atp_readb_base(atpdev, 0x3a) & 0xf3) | 0x10;
atp_writeb_base(atpdev, 0x3a, k);
atp_writeb_base(atpdev, 0x3a, k & 0xdf);
mdelay(32);
atp_writeb_base(atpdev, 0x3a, k);
mdelay(32);
atp_set_host_id(atpdev, 0, host_id);
tscam(shpnt, wide_chip, scam_on);
atp_writeb_base(atpdev, 0x3a, atp_readb_base(atpdev, 0x3a) | 0x10);
atp_is(atpdev, 0, wide_chip, 0);
atp_writeb_base(atpdev, 0x3a, atp_readb_base(atpdev, 0x3a) & 0xef);
atp_writeb_base(atpdev, 0x3b, atp_readb_base(atpdev, 0x3b) | 0x20);
shpnt->max_id = wide_chip ? 16 : 8;
shpnt->this_id = host_id;
}
static void atp880_init(struct Scsi_Host *shpnt)
{
struct atp_unit *atpdev = shost_priv(shpnt);
@ -1445,9 +1496,6 @@ static void atp885_init(struct Scsi_Host *shpnt)
/* return non-zero on detection */
static int atp870u_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
unsigned char k;
unsigned int error;
unsigned char host_id;
struct Scsi_Host *shpnt = NULL;
struct atp_unit *atpdev;
int err;
@ -1500,53 +1548,9 @@ static int atp870u_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
atp880_init(shpnt);
else if (is885(atpdev))
atp885_init(shpnt);
else {
u8 scam_on;
bool wide_chip =
(ent->device == PCI_DEVICE_ID_ARTOP_AEC7610 &&
pdev->revision == 4) ||
(ent->device == PCI_DEVICE_ID_ARTOP_AEC7612UW) ||
(ent->device == PCI_DEVICE_ID_ARTOP_AEC7612SUW);
error = pci_read_config_byte(pdev, 0x49, &host_id);
else
atp870_init(shpnt);
printk(KERN_INFO " ACARD AEC-671X PCI Ultra/W SCSI-2/3 Host Adapter: "
"IO:%lx, IRQ:%d.\n", shpnt->io_port, shpnt->irq);
atpdev->ioport[0] = shpnt->io_port;
atpdev->pciport[0] = shpnt->io_port + 0x20;
host_id &= 0x07;
atpdev->host_id[0] = host_id;
scam_on = atp_readb_pci(atpdev, 0, 2);
atpdev->global_map[0] = atp_readb_base(atpdev, 0x2d);
atpdev->ultra_map[0] = atp_readw_base(atpdev, 0x2e);
if (atpdev->ultra_map[0] == 0) {
scam_on = 0x00;
atpdev->global_map[0] = 0x20;
atpdev->ultra_map[0] = 0xffff;
}
if (pdev->revision > 0x07) /* check if atp876 chip then enable terminator */
atp_writeb_base(atpdev, 0x3e, 0x00);
k = (atp_readb_base(atpdev, 0x3a) & 0xf3) | 0x10;
atp_writeb_base(atpdev, 0x3a, k);
atp_writeb_base(atpdev, 0x3a, k & 0xdf);
mdelay(32);
atp_writeb_base(atpdev, 0x3a, k);
mdelay(32);
atp_set_host_id(atpdev, 0, host_id);
tscam(shpnt, wide_chip, scam_on);
atp_writeb_base(atpdev, 0x3a, atp_readb_base(atpdev, 0x3a) | 0x10);
atp_is(atpdev, 0, wide_chip, 0);
atp_writeb_base(atpdev, 0x3a, atp_readb_base(atpdev, 0x3a) & 0xef);
atp_writeb_base(atpdev, 0x3b, atp_readb_base(atpdev, 0x3b) | 0x20);
shpnt->max_id = wide_chip ? 16 : 8;
shpnt->this_id = host_id;
}
err = request_irq(shpnt->irq, atp870u_intr_handle, IRQF_SHARED, "atp870u", shpnt);
if (err) {
dev_err(&pdev->dev, "Unable to allocate IRQ %d.\n", shpnt->irq);