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Commit 1940ed62 authored by Ondrej Zary's avatar Ondrej Zary Committed by Martin K. Petersen
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atp870u: Untangle tmport #3 

Untangle the tmport crap so it becomes obvious what ports are accessed.
Signed-off-by: default avatarOndrej Zary <linux@rainbow-software.org>
Reviewed-by: default avatarHannes Reinicke <hare@suse.de>
Acked-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 3b836464
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Showing with 49 additions and 69 deletions
drivers/scsi/atp870u.c
View file @ 1940ed62
......@@ -933,38 +933,36 @@ static void send_s870(struct atp_unit *dev,unsigned char c)
static unsigned char fun_scam(struct atp_unit *dev, unsigned short int *val)
{
unsigned int tmport;
unsigned short int i, k;
unsigned char j;
tmport = dev->ioport[0] + 0x1c;
outw(*val, tmport);
outw(*val, dev->ioport[0] + 0x1c);
FUN_D7:
for (i = 0; i < 10; i++) { /* stable >= bus settle delay(400 ns) */
k = inw(tmport);
k = inw(dev->ioport[0] + 0x1c);
j = (unsigned char) (k >> 8);
if ((k & 0x8000) != 0) { /* DB7 all release? */
goto FUN_D7;
}
}
*val |= 0x4000; /* assert DB6 */
outw(*val, tmport);
outw(*val, dev->ioport[0] + 0x1c);
*val &= 0xdfff; /* assert DB5 */
outw(*val, tmport);
outw(*val, dev->ioport[0] + 0x1c);
FUN_D5:
for (i = 0; i < 10; i++) { /* stable >= bus settle delay(400 ns) */
if ((inw(tmport) & 0x2000) != 0) { /* DB5 all release? */
if ((inw(dev->ioport[0] + 0x1c) & 0x2000) != 0) { /* DB5 all release? */
goto FUN_D5;
}
}
*val |= 0x8000; /* no DB4-0, assert DB7 */
*val &= 0xe0ff;
outw(*val, tmport);
outw(*val, dev->ioport[0] + 0x1c);
*val &= 0xbfff; /* release DB6 */
outw(*val, tmport);
outw(*val, dev->ioport[0] + 0x1c);
FUN_D6:
for (i = 0; i < 10; i++) { /* stable >= bus settle delay(400 ns) */
if ((inw(tmport) & 0x4000) != 0) { /* DB6 all release? */
if ((inw(dev->ioport[0] + 0x1c) & 0x4000) != 0) { /* DB6 all release? */
goto FUN_D6;
}
}
......@@ -975,7 +973,6 @@ static unsigned char fun_scam(struct atp_unit *dev, unsigned short int *val)
static void tscam(struct Scsi_Host *host)
{
unsigned int tmport;
unsigned char i, j, k;
unsigned long n;
unsigned short int m, assignid_map, val;
......@@ -992,11 +989,9 @@ static void tscam(struct Scsi_Host *host)
}
*/
tmport = dev->ioport[0] + 1;
outb(0x08, tmport++);
outb(0x7f, tmport);
tmport = dev->ioport[0] + 0x11;
outb(0x20, tmport);
outb(0x08, dev->ioport[0] + 1);
outb(0x7f, dev->ioport[0] + 2);
outb(0x20, dev->ioport[0] + 0x11);
if ((dev->scam_on & 0x40) == 0) {
return;
......@@ -1009,14 +1004,13 @@ static void tscam(struct Scsi_Host *host)
j = 8;
}
assignid_map = m;
tmport = dev->ioport[0] + 0x02;
outb(0x02, tmport++); /* 2*2=4ms,3EH 2/32*3E=3.9ms */
outb(0, tmport++);
outb(0, tmport++);
outb(0, tmport++);
outb(0, tmport++);
outb(0, tmport++);
outb(0, tmport++);
outb(0x02, dev->ioport[0] + 0x02); /* 2*2=4ms,3EH 2/32*3E=3.9ms */
outb(0, dev->ioport[0] + 0x03);
outb(0, dev->ioport[0] + 0x04);
outb(0, dev->ioport[0] + 0x05);
outb(0, dev->ioport[0] + 0x06);
outb(0, dev->ioport[0] + 0x07);
outb(0, dev->ioport[0] + 0x08);
for (i = 0; i < j; i++) {
m = 1;
......@@ -1024,79 +1018,69 @@ static void tscam(struct Scsi_Host *host)
if ((m & assignid_map) != 0) {
continue;
}
tmport = dev->ioport[0] + 0x0f;
outb(0, tmport++);
tmport += 0x02;
outb(0, tmport++);
outb(0, tmport++);
outb(0, tmport++);
outb(0, dev->ioport[0] + 0x0f);
outb(0, dev->ioport[0] + 0x12);
outb(0, dev->ioport[0] + 0x13);
outb(0, dev->ioport[0] + 0x14);
if (i > 7) {
k = (i & 0x07) | 0x40;
} else {
k = i;
}
outb(k, tmport++);
tmport = dev->ioport[0] + 0x1b;
outb(k, dev->ioport[0] + 0x15);
if (dev->chip_ver == 4) {
outb(0x01, tmport);
outb(0x01, dev->ioport[0] + 0x1b);
} else {
outb(0x00, tmport);
outb(0x00, dev->ioport[0] + 0x1b);
}
wait_rdyok:
tmport = dev->ioport[0] + 0x18;
outb(0x09, tmport);
tmport += 0x07;
outb(0x09, dev->ioport[0] + 0x18);
while ((inb(tmport) & 0x80) == 0x00)
while ((inb(dev->ioport[0] + 0x1f) & 0x80) == 0x00)
cpu_relax();
tmport -= 0x08;
k = inb(tmport);
k = inb(dev->ioport[0] + 0x17);
if (k != 0x16) {
if ((k == 0x85) || (k == 0x42)) {
continue;
}
tmport = dev->ioport[0] + 0x10;
outb(0x41, tmport);
outb(0x41, dev->ioport[0] + 0x10);
goto wait_rdyok;
}
assignid_map |= m;
}
tmport = dev->ioport[0] + 0x02;
outb(0x7f, tmport);
tmport = dev->ioport[0] + 0x1b;
outb(0x02, tmport);
outb(0x7f, dev->ioport[0] + 0x02);
outb(0x02, dev->ioport[0] + 0x1b);
outb(0, 0x80);
val = 0x0080; /* bsy */
tmport = dev->ioport[0] + 0x1c;
outw(val, tmport);
outw(val, dev->ioport[0] + 0x1c);
val |= 0x0040; /* sel */
outw(val, tmport);
outw(val, dev->ioport[0] + 0x1c);
val |= 0x0004; /* msg */
outw(val, tmport);
outw(val, dev->ioport[0] + 0x1c);
inb(0x80); /* 2 deskew delay(45ns*2=90ns) */
val &= 0x007f; /* no bsy */
outw(val, tmport);
outw(val, dev->ioport[0] + 0x1c);
mdelay(128);
val &= 0x00fb; /* after 1ms no msg */
outw(val, tmport);
outw(val, dev->ioport[0] + 0x1c);
wait_nomsg:
if ((inb(tmport) & 0x04) != 0) {
if ((inb(dev->ioport[0] + 0x1c) & 0x04) != 0) {
goto wait_nomsg;
}
outb(1, 0x80);
udelay(100);
for (n = 0; n < 0x30000; n++) {
if ((inb(tmport) & 0x80) != 0) { /* bsy ? */
if ((inb(dev->ioport[0] + 0x1c) & 0x80) != 0) { /* bsy ? */
goto wait_io;
}
}
goto TCM_SYNC;
wait_io:
for (n = 0; n < 0x30000; n++) {
if ((inb(tmport) & 0x81) == 0x0081) {
if ((inb(dev->ioport[0] + 0x1c) & 0x81) == 0x0081) {
goto wait_io1;
}
}
......@@ -1104,10 +1088,10 @@ static void tscam(struct Scsi_Host *host)
wait_io1:
inb(0x80);
val |= 0x8003; /* io,cd,db7 */
outw(val, tmport);
outw(val, dev->ioport[0] + 0x1c);
inb(0x80);
val &= 0x00bf; /* no sel */
outw(val, tmport);
outw(val, dev->ioport[0] + 0x1c);
outb(2, 0x80);
TCM_SYNC:
/*
......@@ -1120,18 +1104,14 @@ static void tscam(struct Scsi_Host *host)
*/
mdelay(2);
udelay(48);
if ((inb(tmport) & 0x80) == 0x00) { /* bsy ? */
outw(0, tmport--);
outb(0, tmport);
tmport = dev->ioport[0] + 0x15;
outb(0, tmport);
tmport += 0x03;
outb(0x09, tmport);
tmport += 0x07;
while ((inb(tmport) & 0x80) == 0)
if ((inb(dev->ioport[0] + 0x1c) & 0x80) == 0x00) { /* bsy ? */
outw(0, dev->ioport[0] + 0x1c);
outb(0, dev->ioport[0] + 0x1b);
outb(0, dev->ioport[0] + 0x15);
outb(0x09, dev->ioport[0] + 0x18);
while ((inb(dev->ioport[0] + 0x1f) & 0x80) == 0)
cpu_relax();
tmport -= 0x08;
inb(tmport);
inb(dev->ioport[0] + 0x17);
return;
}
val &= 0x00ff; /* synchronization */
......@@ -1145,7 +1125,7 @@ static void tscam(struct Scsi_Host *host)
i = 8;
j = 0;
TCM_ID:
if ((inw(tmport) & 0x2000) == 0) {
if ((inw(dev->ioport[0] + 0x1c) & 0x2000) == 0) {
goto TCM_ID;
}
outb(5, 0x80);
......
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