Untangle the tmpcip crap so it becomes obvious what ports are accessed.
Signed-off-by: Ondrej Zary <linux@xxxxxxxxxxxxxxxxxxxx>
---
drivers/scsi/atp870u.c | 64 +++++++++++++++++-------------------------------
1 file changed, 23 insertions(+), 41 deletions(-)
diff --git a/drivers/scsi/atp870u.c b/drivers/scsi/atp870u.c
index 2b8ae0d..d7a8763 100644
--- a/drivers/scsi/atp870u.c
+++ b/drivers/scsi/atp870u.c
@@ -47,7 +47,7 @@ static void tscam_885(void);
static irqreturn_t atp870u_intr_handle(int irq, void *dev_id)
{
unsigned long flags;
- unsigned short int tmpcip, id;
+ unsigned short int id;
unsigned char i, j, c, target_id, lun,cmdp;
unsigned char *prd;
struct scsi_cmnd *workreq;
@@ -79,30 +79,24 @@ ch_sel:
if ((inb(dev->ioport[c] + 0x16) & 0x80) == 0)
outb((inb(dev->ioport[c] + 0x16) | 0x80), dev->ioport[c] + 0x16);
}
- tmpcip = dev->pciport[c];
- if ((inb(tmpcip) & 0x08) != 0)
+ if ((inb(dev->pciport[c]) & 0x08) != 0)
{
- tmpcip += 0x2;
for (k=0; k < 1000; k++) {
- if ((inb(tmpcip) & 0x08) == 0) {
+ if ((inb(dev->pciport[c] + 2) & 0x08) == 0) {
goto stop_dma;
}
- if ((inb(tmpcip) & 0x01) == 0) {
+ if ((inb(dev->pciport[c] + 2) & 0x01) == 0) {
goto stop_dma;
}
}
}
stop_dma:
- tmpcip = dev->pciport[c];
- outb(0x00, tmpcip);
+ outb(0x00, dev->pciport[c]);
i = inb(dev->ioport[c] + 0x17);
- if (dev->dev_id == ATP885_DEVID) {
- tmpcip += 2;
- outb(0x06, tmpcip);
- tmpcip -= 2;
- }
+ if (dev->dev_id == ATP885_DEVID)
+ outb(0x06, dev->pciport[c] + 2);
target_id = inb(dev->ioport[c] + 0x15);
@@ -303,13 +297,12 @@ stop_dma:
/* enable 32 bit fifo transfer */
if (dev->dev_id == ATP885_DEVID) {
- tmpcip = dev->pciport[c] + 1;
- i=inb(tmpcip) & 0xf3;
+ i=inb(dev->pciport[c] + 1) & 0xf3;
//j=workreq->cmnd[0];
if ((workreq->cmnd[0] == 0x08) || (workreq->cmnd[0] == 0x28) || (workreq->cmnd[0] == 0x0a) || (workreq->cmnd[0] == 0x2a)) {
i |= 0x0c;
}
- outb(i,tmpcip);
+ outb(i, dev->pciport[c] + 1);
} else if ((dev->dev_id == ATP880_DEVID1) ||
(dev->dev_id == ATP880_DEVID2) ) {
if ((workreq->cmnd[0] == 0x08) || (workreq->cmnd[0] == 0x28) || (workreq->cmnd[0] == 0x0a) || (workreq->cmnd[0] == 0x2a)) {
@@ -371,25 +364,20 @@ stop_dma:
}
}
}
- tmpcip = dev->pciport[c] + 0x04;
- outl(dev->id[c][target_id].prdaddr, tmpcip);
+ outl(dev->id[c][target_id].prdaddr, dev->pciport[c] + 0x04);
#ifdef ED_DBGP
printk("dev->id[%d][%d].prdaddr 0x%8x\n", c, target_id, dev->id[c][target_id].prdaddr);
#endif
- if (dev->dev_id == ATP885_DEVID) {
- tmpcip -= 0x04;
- } else {
- tmpcip -= 0x02;
- outb(0x06, tmpcip);
- outb(0x00, tmpcip);
- tmpcip -= 0x02;
+ if (dev->dev_id != ATP885_DEVID) {
+ outb(0x06, dev->pciport[c] + 2);
+ outb(0x00, dev->pciport[c] + 2);
}
/*
* Check transfer direction
*/
if (dev->id[c][target_id].dirct != 0) {
outb(0x08, dev->ioport[c] + 0x18);
- outb(0x01, tmpcip);
+ outb(0x01, dev->pciport[c]);
dev->in_int[c] = 0;
#ifdef ED_DBGP
printk("status 0x80 return dirct != 0\n");
@@ -397,7 +385,7 @@ stop_dma:
goto handled;
}
outb(0x08, dev->ioport[c] + 0x18);
- outb(0x09, tmpcip);
+ outb(0x09, dev->pciport[c]);
dev->in_int[c] = 0;
#ifdef ED_DBGP
printk("status 0x80 return dirct = 0\n");
@@ -484,12 +472,9 @@ go_42:
}
i &= 0x0f;
if (i == 0x09) {
- tmpcip += 4;
- outl(dev->id[c][target_id].prdaddr, tmpcip);
- tmpcip = tmpcip - 2;
- outb(0x06, tmpcip);
- outb(0x00, tmpcip);
- tmpcip = tmpcip - 2;
+ outl(dev->id[c][target_id].prdaddr, dev->pciport[c] + 4);
+ outb(0x06, dev->pciport[c] + 2);
+ outb(0x00, dev->pciport[c] + 2);
outb(0x41, dev->ioport[c] + 0x10);
if (dev->dev_id == ATP885_DEVID) {
k = dev->id[c][target_id].last_len;
@@ -501,17 +486,14 @@ go_42:
dev->id[c][target_id].dirct = 0x00;
}
outb(0x08, dev->ioport[c] + 0x18);
- outb(0x09, tmpcip);
+ outb(0x09, dev->pciport[c]);
dev->in_int[c] = 0;
goto handled;
}
if (i == 0x08) {
- tmpcip += 4;
- outl(dev->id[c][target_id].prdaddr, tmpcip);
- tmpcip = tmpcip - 2;
- outb(0x06, tmpcip);
- outb(0x00, tmpcip);
- tmpcip = tmpcip - 2;
+ outl(dev->id[c][target_id].prdaddr, dev->pciport[c] + 4);
+ outb(0x06, dev->pciport[c] + 2);
+ outb(0x00, dev->pciport[c] + 2);
outb(0x41, dev->ioport[c] + 0x10);
if (dev->dev_id == ATP885_DEVID) {
k = dev->id[c][target_id].last_len;
@@ -522,7 +504,7 @@ go_42:
outb((unsigned char) (inb(dev->ioport[c] + 0x15) | 0x20), dev->ioport[c] + 0x15);
dev->id[c][target_id].dirct = 0x20;
outb(0x08, dev->ioport[c] + 0x18);
- outb(0x01, tmpcip);
+ outb(0x01, dev->pciport[c]);
dev->in_int[c] = 0;
goto handled;
}
--
Ondrej Zary
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