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atp870u: Untangle tmport #2

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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 19:23:40 +01:00 committed by Martin K. Petersen
parent 3a38e53ee6
commit 3b83646480
1 changed files with 32 additions and 47 deletions
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79
drivers/scsi/atp870u.c
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@ -562,7 +562,7 @@ static int atp870u_queuecommand_lck(struct scsi_cmnd *req_p,
void (*done) (struct scsi_cmnd *))
{
unsigned char c;
unsigned int tmport,m;
unsigned int m;
struct atp_unit *dev;
struct Scsi_Host *host;
@ -631,11 +631,10 @@ static int atp870u_queuecommand_lck(struct scsi_cmnd *req_p,
return 0;
}
dev->quereq[c][dev->quend[c]] = req_p;
tmport = dev->ioport[c] + 0x1c;
#ifdef ED_DBGP
printk("dev->ioport[c] = %x inb(tmport) = %x dev->in_int[%d] = %d dev->in_snd[%d] = %d\n",dev->ioport[c],inb(tmport),c,dev->in_int[c],c,dev->in_snd[c]);
printk("dev->ioport[c] = %x inb(dev->ioport[c] + 0x1c) = %x dev->in_int[%d] = %d dev->in_snd[%d] = %d\n",dev->ioport[c],inb(dev->ioport[c] + 0x1c),c,dev->in_int[c],c,dev->in_snd[c]);
#endif
if ((inb(tmport) == 0) && (dev->in_int[c] == 0) && (dev->in_snd[c] == 0)) {
if ((inb(dev->ioport[c] + 0x1c) == 0) && (dev->in_int[c] == 0) && (dev->in_snd[c] == 0)) {
#ifdef ED_DBGP
printk("Call sent_s870(atp870u_queuecommand)\n");
#endif
@ -660,7 +659,6 @@ static DEF_SCSI_QCMD(atp870u_queuecommand)
*/
static void send_s870(struct atp_unit *dev,unsigned char c)
{
unsigned int tmport;
struct scsi_cmnd *workreq;
unsigned int i;//,k;
unsigned char j, target_id;
@ -712,12 +710,10 @@ static void send_s870(struct atp_unit *dev,unsigned char c)
dev->in_snd[c] = 0;
return;
cmd_subp:
tmport = dev->ioport[c] + 0x1f;
if ((inb(tmport) & 0xb0) != 0) {
if ((inb(dev->ioport[c] + 0x1f) & 0xb0) != 0) {
goto abortsnd;
}
tmport = dev->ioport[c] + 0x1c;
if (inb(tmport) == 0) {
if (inb(dev->ioport[c] + 0x1c) == 0) {
goto oktosend;
}
abortsnd:
@ -752,7 +748,6 @@ static void send_s870(struct atp_unit *dev,unsigned char c)
l = 0;
}
tmport = dev->ioport[c] + 0x1b;
j = 0;
target_id = scmd_id(workreq);
@ -764,9 +759,9 @@ static void send_s870(struct atp_unit *dev,unsigned char c)
if ((w & 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);
#ifdef ED_DBGP
printk("send_s870 while loop 1\n");
#endif
@ -775,24 +770,21 @@ static void send_s870(struct atp_unit *dev,unsigned char c)
* Write the command
*/
tmport = dev->ioport[c];
outb(workreq->cmd_len, tmport++);
outb(0x2c, tmport++);
outb(workreq->cmd_len, dev->ioport[c] + 0x00);
outb(0x2c, dev->ioport[c] + 0x01);
if (dev->dev_id == ATP885_DEVID) {
outb(0x7f, tmport++);
outb(0x7f, dev->ioport[c] + 0x02);
} else {
outb(0xcf, tmport++);
outb(0xcf, dev->ioport[c] + 0x02);
}
for (i = 0; i < workreq->cmd_len; i++) {
outb(workreq->cmnd[i], tmport++);
outb(workreq->cmnd[i], dev->ioport[c] + 0x03 + i);
}
tmport = dev->ioport[c] + 0x0f;
outb(workreq->device->lun, tmport);
tmport += 0x02;
outb(workreq->device->lun, dev->ioport[c] + 0x0f);
/*
* Write the target
*/
outb(dev->id[c][target_id].devsp, tmport++);
outb(dev->id[c][target_id].devsp, dev->ioport[c] + 0x11);
#ifdef ED_DBGP
printk("dev->id[%d][%d].devsp = %2x\n",c,target_id,dev->id[c][target_id].devsp);
#endif
@ -801,9 +793,9 @@ static void send_s870(struct atp_unit *dev,unsigned char c)
/*
* Write transfer size
*/
outb((unsigned char) (((unsigned char *) (&l))[2]), tmport++);
outb((unsigned char) (((unsigned char *) (&l))[1]), tmport++);
outb((unsigned char) (((unsigned char *) (&l))[0]), tmport++);
outb((unsigned char) (((unsigned char *) (&l))[2]), dev->ioport[c] + 0x12);
outb((unsigned char) (((unsigned char *) (&l))[1]), dev->ioport[c] + 0x13);
outb((unsigned char) (((unsigned char *) (&l))[0]), dev->ioport[c] + 0x14);
j = target_id;
dev->id[c][j].last_len = l;
dev->id[c][j].tran_len = 0;
@ -820,21 +812,19 @@ static void send_s870(struct atp_unit *dev,unsigned char c)
* Check transfer direction
*/
if (workreq->sc_data_direction == DMA_TO_DEVICE) {
outb((unsigned char) (j | 0x20), tmport++);
outb((unsigned char) (j | 0x20), dev->ioport[c] + 0x15);
} else {
outb(j, tmport++);
outb(j, dev->ioport[c] + 0x15);
}
outb((unsigned char) (inb(tmport) | 0x80), tmport);
outb(0x80, tmport);
tmport = dev->ioport[c] + 0x1c;
outb((unsigned char) (inb(dev->ioport[c] + 0x16) | 0x80), dev->ioport[c] + 0x16);
outb(0x80, dev->ioport[c] + 0x16);
dev->id[c][target_id].dirct = 0;
if (l == 0) {
if (inb(tmport) == 0) {
tmport = dev->ioport[c] + 0x18;
if (inb(dev->ioport[c] + 0x1c) == 0) {
#ifdef ED_DBGP
printk("change SCSI_CMD_REG 0x08\n");
#endif
outb(0x08, tmport);
outb(0x08, dev->ioport[c] + 0x18);
} else {
dev->last_cmd[c] |= 0x40;
}
@ -899,28 +889,24 @@ static void send_s870(struct atp_unit *dev,unsigned char c)
} else if ((dev->dev_id == ATP880_DEVID1) ||
(dev->dev_id == ATP880_DEVID2)) {
tmpcip =tmpcip -2;
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);
} else {
outb((unsigned char) (inb(tmport) & 0x3f), tmport);
outb((unsigned char) (inb(dev->ioport[c] - 0x05) & 0x3f), dev->ioport[c] - 0x05);
}
} else {
tmpcip =tmpcip -2;
tmport = dev->ioport[c] + 0x3a;
if ((workreq->cmnd[0] == 0x08) || (workreq->cmnd[0] == 0x28) || (workreq->cmnd[0] == 0x0a) || (workreq->cmnd[0] == 0x2a)) {
outb((inb(tmport) & 0xf3) | 0x08, tmport);
outb((inb(dev->ioport[c] + 0x3a) & 0xf3) | 0x08, dev->ioport[c] + 0x3a);
} else {
outb(inb(tmport) & 0xf3, tmport);
outb(inb(dev->ioport[c] + 0x3a) & 0xf3, dev->ioport[c] + 0x3a);
}
}
tmport = dev->ioport[c] + 0x1c;
if(workreq->sc_data_direction == DMA_TO_DEVICE) {
dev->id[c][target_id].dirct = 0x20;
if (inb(tmport) == 0) {
tmport = dev->ioport[c] + 0x18;
outb(0x08, tmport);
if (inb(dev->ioport[c] + 0x1c) == 0) {
outb(0x08, dev->ioport[c] + 0x18);
outb(0x01, tmpcip);
#ifdef ED_DBGP
printk( "start DMA(to target)\n");
@ -931,9 +917,8 @@ static void send_s870(struct atp_unit *dev,unsigned char c)
dev->in_snd[c] = 0;
return;
}
if (inb(tmport) == 0) {
tmport = dev->ioport[c] + 0x18;
outb(0x08, tmport);
if (inb(dev->ioport[c] + 0x1c) == 0) {
outb(0x08, dev->ioport[c] + 0x18);
outb(0x09, tmpcip);
#ifdef ED_DBGP
printk( "start DMA(to host)\n");