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atp870u: Untangle tmport

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Untangle the tmport crap so it becomes obvious what ports are accessed.

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 19:23:39 +01:00 committed by Martin K. Petersen
parent b4263b3ce9
commit 3a38e53ee6
1 changed files with 71 additions and 115 deletions
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186
drivers/scsi/atp870u.c
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@ -51,7 +51,6 @@ static irqreturn_t atp870u_intr_handle(int irq, void *dev_id)
unsigned char i, j, c, target_id, lun,cmdp;
unsigned char *prd;
struct scsi_cmnd *workreq;
unsigned int tmport;
unsigned long adrcnt, k;
#ifdef ED_DBGP
unsigned long l;
@ -61,8 +60,7 @@ static irqreturn_t atp870u_intr_handle(int irq, void *dev_id)
struct atp_unit *dev = (struct atp_unit *)&host->hostdata;
for (c = 0; c < 2; c++) {
tmport = dev->ioport[c] + 0x1f;
j = inb(tmport);
j = inb(dev->ioport[c] + 0x1f);
if ((j & 0x80) != 0)
{
goto ch_sel;
@ -97,9 +95,8 @@ ch_sel:
stop_dma:
tmpcip = dev->pciport[c];
outb(0x00, tmpcip);
tmport -= 0x08;
i = inb(tmport);
i = inb(dev->ioport[c] + 0x17);
if (dev->dev_id == ATP885_DEVID) {
tmpcip += 2;
@ -107,9 +104,7 @@ stop_dma:
tmpcip -= 2;
}
tmport -= 0x02;
target_id = inb(tmport);
tmport += 0x02;
target_id = inb(dev->ioport[c] + 0x15);
/*
* Remap wide devices onto id numbers
@ -137,11 +132,10 @@ stop_dma:
dev->last_cmd[c] = 0xff;
}
if (dev->dev_id == ATP885_DEVID) {
tmport -= 0x05;
adrcnt = 0;
((unsigned char *) &adrcnt)[2] = inb(tmport++);
((unsigned char *) &adrcnt)[1] = inb(tmport++);
((unsigned char *) &adrcnt)[0] = inb(tmport);
((unsigned char *) &adrcnt)[2] = inb(dev->ioport[c] + 0x12);
((unsigned char *) &adrcnt)[1] = inb(dev->ioport[c] + 0x13);
((unsigned char *) &adrcnt)[0] = inb(dev->ioport[c] + 0x14);
if (dev->id[c][target_id].last_len != adrcnt)
{
k = dev->id[c][target_id].last_len;
@ -150,7 +144,7 @@ stop_dma:
dev->id[c][target_id].last_len = adrcnt;
}
#ifdef ED_DBGP
printk("tmport = %x dev->id[c][target_id].last_len = %d dev->id[c][target_id].tran_len = %d\n",tmport,dev->id[c][target_id].last_len,dev->id[c][target_id].tran_len);
printk("dev->id[c][target_id].last_len = %d dev->id[c][target_id].tran_len = %d\n",dev->id[c][target_id].last_len,dev->id[c][target_id].tran_len);
#endif
}
@ -158,10 +152,9 @@ stop_dma:
* Flip wide
*/
if (dev->wide_id[c] != 0) {
tmport = dev->ioport[c] + 0x1b;
outb(0x01, tmport);
while ((inb(tmport) & 0x01) != 0x01) {
outb(0x01, tmport);
outb(0x01, dev->ioport[c] + 0x1b);
while ((inb(dev->ioport[c] + 0x1b) & 0x01) != 0x01) {
outb(0x01, dev->ioport[c] + 0x1b);
}
}
/*
@ -196,19 +189,16 @@ stop_dma:
if ((dev->last_cmd[c] & 0xf0) != 0x40) {
dev->last_cmd[c] = 0xff;
}
tmport -= 0x05;
adrcnt = 0;
((unsigned char *) &adrcnt)[2] = inb(tmport++);
((unsigned char *) &adrcnt)[1] = inb(tmport++);
((unsigned char *) &adrcnt)[0] = inb(tmport);
((unsigned char *) &adrcnt)[2] = inb(dev->ioport[c] + 0x12);
((unsigned char *) &adrcnt)[1] = inb(dev->ioport[c] + 0x13);
((unsigned char *) &adrcnt)[0] = inb(dev->ioport[c] + 0x14);
k = dev->id[c][target_id].last_len;
k -= adrcnt;
dev->id[c][target_id].tran_len = k;
dev->id[c][target_id].last_len = adrcnt;
tmport -= 0x04;
outb(0x41, tmport);
tmport += 0x08;
outb(0x08, tmport);
outb(0x41, dev->ioport[c] + 0x10);
outb(0x08, dev->ioport[c] + 0x18);
dev->in_int[c] = 0;
goto handled;
}
@ -227,10 +217,8 @@ stop_dma:
printk(KERN_DEBUG "Device reselect\n");
#endif
lun = 0;
tmport -= 0x07;
if (cmdp == 0x44 || i==0x80) {
tmport += 0x0d;
lun = inb(tmport) & 0x07;
lun = inb(dev->ioport[c] + 0x1d) & 0x07;
} else {
if ((dev->last_cmd[c] & 0xf0) != 0x40) {
dev->last_cmd[c] = 0xff;
@ -239,31 +227,27 @@ stop_dma:
#ifdef ED_DBGP
printk("cmdp = 0x41\n");
#endif
tmport += 0x02;
adrcnt = 0;
((unsigned char *) &adrcnt)[2] = inb(tmport++);
((unsigned char *) &adrcnt)[1] = inb(tmport++);
((unsigned char *) &adrcnt)[0] = inb(tmport);
((unsigned char *) &adrcnt)[2] = inb(dev->ioport[c] + 0x12);
((unsigned char *) &adrcnt)[1] = inb(dev->ioport[c] + 0x13);
((unsigned char *) &adrcnt)[0] = inb(dev->ioport[c] + 0x14);
k = dev->id[c][target_id].last_len;
k -= adrcnt;
dev->id[c][target_id].tran_len = k;
dev->id[c][target_id].last_len = adrcnt;
tmport += 0x04;
outb(0x08, tmport);
outb(0x08, dev->ioport[c] + 0x18);
dev->in_int[c] = 0;
goto handled;
} else {
#ifdef ED_DBGP
printk("cmdp != 0x41\n");
#endif
outb(0x46, tmport);
outb(0x46, dev->ioport[c] + 0x10);
dev->id[c][target_id].dirct = 0x00;
tmport += 0x02;
outb(0x00, tmport++);
outb(0x00, tmport++);
outb(0x00, tmport++);
tmport += 0x03;
outb(0x08, tmport);
outb(0x00, dev->ioport[c] + 0x12);
outb(0x00, dev->ioport[c] + 0x13);
outb(0x00, dev->ioport[c] + 0x14);
outb(0x08, dev->ioport[c] + 0x18);
dev->in_int[c] = 0;
goto handled;
}
@ -274,14 +258,10 @@ stop_dma:
if (dev->dev_id == ATP885_DEVID) {
j = inb(dev->baseport + 0x29) & 0xfe;
outb(j, dev->baseport + 0x29);
tmport = dev->ioport[c] + 0x16;
} else {
tmport = dev->ioport[c] + 0x10;
outb(0x45, tmport);
tmport += 0x06;
}
target_id = inb(tmport);
} else
outb(0x45, dev->ioport[c] + 0x10);
target_id = inb(dev->ioport[c] + 0x16);
/*
* Remap wide identifiers
*/
@ -290,10 +270,8 @@ stop_dma:
} else {
target_id &= 0x07;
}
if (dev->dev_id == ATP885_DEVID) {
tmport = dev->ioport[c] + 0x10;
outb(0x45, tmport);
}
if (dev->dev_id == ATP885_DEVID)
outb(0x45, dev->ioport[c] + 0x10);
workreq = dev->id[c][target_id].curr_req;
#ifdef ED_DBGP
scmd_printk(KERN_DEBUG, workreq, "CDB");
@ -302,18 +280,16 @@ stop_dma:
printk("\n");
#endif
tmport = dev->ioport[c] + 0x0f;
outb(lun, tmport);
tmport += 0x02;
outb(dev->id[c][target_id].devsp, tmport++);
outb(lun, dev->ioport[c] + 0x0f);
outb(dev->id[c][target_id].devsp, dev->ioport[c] + 0x11);
adrcnt = dev->id[c][target_id].tran_len;
k = dev->id[c][target_id].last_len;
outb(((unsigned char *) &k)[2], tmport++);
outb(((unsigned char *) &k)[1], tmport++);
outb(((unsigned char *) &k)[0], tmport++);
outb(((unsigned char *) &k)[2], dev->ioport[c] + 0x12);
outb(((unsigned char *) &k)[1], dev->ioport[c] + 0x13);
outb(((unsigned char *) &k)[0], dev->ioport[c] + 0x14);
#ifdef ED_DBGP
printk("k %x, k[0] 0x%x k[1] 0x%x k[2] 0x%x\n", k, inb(tmport-1), inb(tmport-2), inb(tmport-3));
printk("k %x, k[0] 0x%x k[1] 0x%x k[2] 0x%x\n", k, inb(dev->ioport[c] + 0x14), inb(dev->ioport[c] + 0x13), inb(dev->ioport[c] + 0x12));
#endif
/* Remap wide */
j = target_id;
@ -322,8 +298,8 @@ stop_dma:
}
/* Add direction */
j |= dev->id[c][target_id].dirct;
outb(j, tmport++);
outb(0x80,tmport);
outb(j, dev->ioport[c] + 0x15);
outb(0x80, dev->ioport[c] + 0x16);
/* enable 32 bit fifo transfer */
if (dev->dev_id == ATP885_DEVID) {
@ -336,21 +312,18 @@ stop_dma:
outb(i,tmpcip);
} else if ((dev->dev_id == ATP880_DEVID1) ||
(dev->dev_id == ATP880_DEVID2) ) {
tmport = dev->ioport[c] - 0x05;
if ((workreq->cmnd[0] == 0x08) || (workreq->cmnd[0] == 0x28) || (workreq->cmnd[0] == 0x0a) || (workreq->cmnd[0] == 0x2a)) {
outb((unsigned char) ((inb(tmport) & 0x3f) | 0xc0), tmport);
outb((unsigned char) ((inb(dev->ioport[c] - 0x05) & 0x3f) | 0xc0), dev->ioport[c] - 0x05);///minus 0x05???
} else {
outb((unsigned char) (inb(tmport) & 0x3f), tmport);
outb((unsigned char) (inb(dev->ioport[c] - 0x05) & 0x3f), dev->ioport[c] - 0x05);///minus 0x05???
}
} else {
tmport = dev->ioport[c] + 0x3a;
if ((workreq->cmnd[0] == 0x08) || (workreq->cmnd[0] == 0x28) || (workreq->cmnd[0] == 0x0a) || (workreq->cmnd[0] == 0x2a)) {
outb((unsigned char) ((inb(tmport) & 0xf3) | 0x08), tmport);
outb((unsigned char) ((inb(dev->ioport[c] + 0x3a) & 0xf3) | 0x08), dev->ioport[c] + 0x3a);
} else {
outb((unsigned char) (inb(tmport) & 0xf3), tmport);
outb((unsigned char) (inb(dev->ioport[c] + 0x3a) & 0xf3), dev->ioport[c] + 0x3a);
}
}
tmport = dev->ioport[c] + 0x1b;
j = 0;
id = 1;
id = id << target_id;
@ -360,13 +333,12 @@ stop_dma:
if ((id & dev->wide_id[c]) != 0) {
j |= 0x01;
}
outb(j, tmport);
while ((inb(tmport) & 0x01) != j) {
outb(j,tmport);
outb(j, dev->ioport[c] + 0x1b);
while ((inb(dev->ioport[c] + 0x1b) & 0x01) != j) {
outb(j,dev->ioport[c] + 0x1b);
}
if (dev->id[c][target_id].last_len == 0) {
tmport = dev->ioport[c] + 0x18;
outb(0x08, tmport);
outb(0x08, dev->ioport[c] + 0x18);
dev->in_int[c] = 0;
#ifdef ED_DBGP
printk("dev->id[c][target_id].last_len = 0\n");
@ -412,12 +384,11 @@ stop_dma:
outb(0x00, tmpcip);
tmpcip -= 0x02;
}
tmport = dev->ioport[c] + 0x18;
/*
* Check transfer direction
*/
if (dev->id[c][target_id].dirct != 0) {
outb(0x08, tmport);
outb(0x08, dev->ioport[c] + 0x18);
outb(0x01, tmpcip);
dev->in_int[c] = 0;
#ifdef ED_DBGP
@ -425,7 +396,7 @@ stop_dma:
#endif
goto handled;
}
outb(0x08, tmport);
outb(0x08, dev->ioport[c] + 0x18);
outb(0x09, tmpcip);
dev->in_int[c] = 0;
#ifdef ED_DBGP
@ -454,8 +425,7 @@ stop_dma:
dev->last_cmd[c] = 0xff;
}
errstus = 0;
tmport -= 0x08;
errstus = inb(tmport);
errstus = inb(dev->ioport[c] + 0x0f);
if (((dev->r1f[c][target_id] & 0x10) != 0)&&(dev->dev_id==ATP885_DEVID)) {
printk(KERN_WARNING "AEC67162 CRC ERROR !\n");
errstus = 0x02;
@ -486,10 +456,9 @@ go_42:
* Take it back wide
*/
if (dev->wide_id[c] != 0) {
tmport = dev->ioport[c] + 0x1b;
outb(0x01, tmport);
while ((inb(tmport) & 0x01) != 0x01) {
outb(0x01, tmport);
outb(0x01, dev->ioport[c] + 0x1b);
while ((inb(dev->ioport[c] + 0x1b) & 0x01) != 0x01) {
outb(0x01, dev->ioport[c] + 0x1b);
}
}
/*
@ -521,21 +490,17 @@ go_42:
outb(0x06, tmpcip);
outb(0x00, tmpcip);
tmpcip = tmpcip - 2;
tmport = dev->ioport[c] + 0x10;
outb(0x41, tmport);
outb(0x41, dev->ioport[c] + 0x10);
if (dev->dev_id == ATP885_DEVID) {
tmport += 2;
k = dev->id[c][target_id].last_len;
outb((unsigned char) (((unsigned char *) (&k))[2]), tmport++);
outb((unsigned char) (((unsigned char *) (&k))[1]), tmport++);
outb((unsigned char) (((unsigned char *) (&k))[0]), tmport);
outb((unsigned char) (((unsigned char *) (&k))[2]), dev->ioport[c] + 0x12);
outb((unsigned char) (((unsigned char *) (&k))[1]), dev->ioport[c] + 0x13);
outb((unsigned char) (((unsigned char *) (&k))[0]), dev->ioport[c] + 0x14);
dev->id[c][target_id].dirct = 0x00;
tmport += 0x04;
} else {
dev->id[c][target_id].dirct = 0x00;
tmport += 0x08;
}
outb(0x08, tmport);
outb(0x08, dev->ioport[c] + 0x18);
outb(0x09, tmpcip);
dev->in_int[c] = 0;
goto handled;
@ -547,43 +512,34 @@ go_42:
outb(0x06, tmpcip);
outb(0x00, tmpcip);
tmpcip = tmpcip - 2;
tmport = dev->ioport[c] + 0x10;
outb(0x41, tmport);
outb(0x41, dev->ioport[c] + 0x10);
if (dev->dev_id == ATP885_DEVID) {
tmport += 2;
k = dev->id[c][target_id].last_len;
outb((unsigned char) (((unsigned char *) (&k))[2]), tmport++);
outb((unsigned char) (((unsigned char *) (&k))[1]), tmport++);
outb((unsigned char) (((unsigned char *) (&k))[0]), tmport++);
} else {
tmport += 5;
outb((unsigned char) (((unsigned char *) (&k))[2]), dev->ioport[c] + 0x12);
outb((unsigned char) (((unsigned char *) (&k))[1]), dev->ioport[c] + 0x13);
outb((unsigned char) (((unsigned char *) (&k))[0]), dev->ioport[c] + 0x14);
}
outb((unsigned char) (inb(tmport) | 0x20), tmport);
outb((unsigned char) (inb(dev->ioport[c] + 0x15) | 0x20), dev->ioport[c] + 0x15);
dev->id[c][target_id].dirct = 0x20;
tmport += 0x03;
outb(0x08, tmport);
outb(0x08, dev->ioport[c] + 0x18);
outb(0x01, tmpcip);
dev->in_int[c] = 0;
goto handled;
}
tmport -= 0x07;
if (i == 0x0a) {
outb(0x30, tmport);
outb(0x30, dev->ioport[c] + 0x10);
} else {
outb(0x46, tmport);
outb(0x46, dev->ioport[c] + 0x10);
}
dev->id[c][target_id].dirct = 0x00;
tmport += 0x02;
outb(0x00, tmport++);
outb(0x00, tmport++);
outb(0x00, tmport++);
tmport += 0x03;
outb(0x08, tmport);
outb(0x00, dev->ioport[c] + 0x12);
outb(0x00, dev->ioport[c] + 0x13);
outb(0x00, dev->ioport[c] + 0x14);
outb(0x08, dev->ioport[c] + 0x18);
dev->in_int[c] = 0;
goto handled;
} else {
// tmport = dev->ioport[c] + 0x17;
// inb(tmport);
// inb(dev->ioport[c] + 0x17);
// dev->working[c] = 0;
dev->in_int[c] = 0;
goto handled;