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atp870u: Untangle tmport #3
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
Martin K. Petersen
parent
3b83646480
commit
1940ed62f9
1 changed files with 49 additions and 69 deletions
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@ -933,38 +933,36 @@ static void send_s870(struct atp_unit *dev,unsigned char c)
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static unsigned char fun_scam(struct atp_unit *dev, unsigned short int *val)
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{
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unsigned int tmport;
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unsigned short int i, k;
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unsigned char j;
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tmport = dev->ioport[0] + 0x1c;
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outw(*val, tmport);
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outw(*val, dev->ioport[0] + 0x1c);
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FUN_D7:
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for (i = 0; i < 10; i++) { /* stable >= bus settle delay(400 ns) */
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k = inw(tmport);
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k = inw(dev->ioport[0] + 0x1c);
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j = (unsigned char) (k >> 8);
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if ((k & 0x8000) != 0) { /* DB7 all release? */
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goto FUN_D7;
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}
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}
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*val |= 0x4000; /* assert DB6 */
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outw(*val, tmport);
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outw(*val, dev->ioport[0] + 0x1c);
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*val &= 0xdfff; /* assert DB5 */
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outw(*val, tmport);
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outw(*val, dev->ioport[0] + 0x1c);
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FUN_D5:
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for (i = 0; i < 10; i++) { /* stable >= bus settle delay(400 ns) */
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if ((inw(tmport) & 0x2000) != 0) { /* DB5 all release? */
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if ((inw(dev->ioport[0] + 0x1c) & 0x2000) != 0) { /* DB5 all release? */
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goto FUN_D5;
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}
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}
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*val |= 0x8000; /* no DB4-0, assert DB7 */
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*val &= 0xe0ff;
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outw(*val, tmport);
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outw(*val, dev->ioport[0] + 0x1c);
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*val &= 0xbfff; /* release DB6 */
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outw(*val, tmport);
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outw(*val, dev->ioport[0] + 0x1c);
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FUN_D6:
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for (i = 0; i < 10; i++) { /* stable >= bus settle delay(400 ns) */
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if ((inw(tmport) & 0x4000) != 0) { /* DB6 all release? */
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if ((inw(dev->ioport[0] + 0x1c) & 0x4000) != 0) { /* DB6 all release? */
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goto FUN_D6;
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}
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}
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@ -975,7 +973,6 @@ static unsigned char fun_scam(struct atp_unit *dev, unsigned short int *val)
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static void tscam(struct Scsi_Host *host)
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{
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unsigned int tmport;
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unsigned char i, j, k;
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unsigned long n;
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unsigned short int m, assignid_map, val;
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@ -992,11 +989,9 @@ static void tscam(struct Scsi_Host *host)
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}
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*/
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tmport = dev->ioport[0] + 1;
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outb(0x08, tmport++);
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outb(0x7f, tmport);
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tmport = dev->ioport[0] + 0x11;
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outb(0x20, tmport);
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outb(0x08, dev->ioport[0] + 1);
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outb(0x7f, dev->ioport[0] + 2);
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outb(0x20, dev->ioport[0] + 0x11);
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if ((dev->scam_on & 0x40) == 0) {
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return;
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@ -1009,14 +1004,13 @@ static void tscam(struct Scsi_Host *host)
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j = 8;
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}
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assignid_map = m;
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tmport = dev->ioport[0] + 0x02;
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outb(0x02, tmport++); /* 2*2=4ms,3EH 2/32*3E=3.9ms */
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outb(0, tmport++);
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outb(0, tmport++);
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outb(0, tmport++);
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outb(0, tmport++);
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outb(0, tmport++);
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outb(0, tmport++);
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outb(0x02, dev->ioport[0] + 0x02); /* 2*2=4ms,3EH 2/32*3E=3.9ms */
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outb(0, dev->ioport[0] + 0x03);
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outb(0, dev->ioport[0] + 0x04);
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outb(0, dev->ioport[0] + 0x05);
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outb(0, dev->ioport[0] + 0x06);
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outb(0, dev->ioport[0] + 0x07);
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outb(0, dev->ioport[0] + 0x08);
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for (i = 0; i < j; i++) {
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m = 1;
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@ -1024,79 +1018,69 @@ static void tscam(struct Scsi_Host *host)
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if ((m & assignid_map) != 0) {
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continue;
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}
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tmport = dev->ioport[0] + 0x0f;
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outb(0, tmport++);
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tmport += 0x02;
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outb(0, tmport++);
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outb(0, tmport++);
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outb(0, tmport++);
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outb(0, dev->ioport[0] + 0x0f);
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outb(0, dev->ioport[0] + 0x12);
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outb(0, dev->ioport[0] + 0x13);
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outb(0, dev->ioport[0] + 0x14);
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if (i > 7) {
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k = (i & 0x07) | 0x40;
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} else {
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k = i;
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}
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outb(k, tmport++);
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tmport = dev->ioport[0] + 0x1b;
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outb(k, dev->ioport[0] + 0x15);
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if (dev->chip_ver == 4) {
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outb(0x01, tmport);
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outb(0x01, dev->ioport[0] + 0x1b);
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} else {
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outb(0x00, tmport);
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outb(0x00, dev->ioport[0] + 0x1b);
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}
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wait_rdyok:
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tmport = dev->ioport[0] + 0x18;
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outb(0x09, tmport);
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tmport += 0x07;
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outb(0x09, dev->ioport[0] + 0x18);
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while ((inb(tmport) & 0x80) == 0x00)
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while ((inb(dev->ioport[0] + 0x1f) & 0x80) == 0x00)
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cpu_relax();
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tmport -= 0x08;
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k = inb(tmport);
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k = inb(dev->ioport[0] + 0x17);
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if (k != 0x16) {
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if ((k == 0x85) || (k == 0x42)) {
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continue;
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}
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tmport = dev->ioport[0] + 0x10;
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outb(0x41, tmport);
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outb(0x41, dev->ioport[0] + 0x10);
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goto wait_rdyok;
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}
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assignid_map |= m;
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}
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tmport = dev->ioport[0] + 0x02;
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outb(0x7f, tmport);
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tmport = dev->ioport[0] + 0x1b;
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outb(0x02, tmport);
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outb(0x7f, dev->ioport[0] + 0x02);
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outb(0x02, dev->ioport[0] + 0x1b);
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outb(0, 0x80);
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val = 0x0080; /* bsy */
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tmport = dev->ioport[0] + 0x1c;
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outw(val, tmport);
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outw(val, dev->ioport[0] + 0x1c);
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val |= 0x0040; /* sel */
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outw(val, tmport);
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outw(val, dev->ioport[0] + 0x1c);
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val |= 0x0004; /* msg */
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outw(val, tmport);
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outw(val, dev->ioport[0] + 0x1c);
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inb(0x80); /* 2 deskew delay(45ns*2=90ns) */
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val &= 0x007f; /* no bsy */
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outw(val, tmport);
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outw(val, dev->ioport[0] + 0x1c);
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mdelay(128);
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val &= 0x00fb; /* after 1ms no msg */
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outw(val, tmport);
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outw(val, dev->ioport[0] + 0x1c);
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wait_nomsg:
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if ((inb(tmport) & 0x04) != 0) {
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if ((inb(dev->ioport[0] + 0x1c) & 0x04) != 0) {
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goto wait_nomsg;
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}
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outb(1, 0x80);
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udelay(100);
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for (n = 0; n < 0x30000; n++) {
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if ((inb(tmport) & 0x80) != 0) { /* bsy ? */
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if ((inb(dev->ioport[0] + 0x1c) & 0x80) != 0) { /* bsy ? */
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goto wait_io;
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}
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}
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goto TCM_SYNC;
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wait_io:
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for (n = 0; n < 0x30000; n++) {
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if ((inb(tmport) & 0x81) == 0x0081) {
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if ((inb(dev->ioport[0] + 0x1c) & 0x81) == 0x0081) {
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goto wait_io1;
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}
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}
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@ -1104,10 +1088,10 @@ static void tscam(struct Scsi_Host *host)
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wait_io1:
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inb(0x80);
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val |= 0x8003; /* io,cd,db7 */
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outw(val, tmport);
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outw(val, dev->ioport[0] + 0x1c);
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inb(0x80);
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val &= 0x00bf; /* no sel */
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outw(val, tmport);
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outw(val, dev->ioport[0] + 0x1c);
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outb(2, 0x80);
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TCM_SYNC:
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/*
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@ -1120,18 +1104,14 @@ static void tscam(struct Scsi_Host *host)
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*/
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mdelay(2);
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udelay(48);
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if ((inb(tmport) & 0x80) == 0x00) { /* bsy ? */
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outw(0, tmport--);
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outb(0, tmport);
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tmport = dev->ioport[0] + 0x15;
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outb(0, tmport);
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tmport += 0x03;
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outb(0x09, tmport);
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tmport += 0x07;
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while ((inb(tmport) & 0x80) == 0)
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if ((inb(dev->ioport[0] + 0x1c) & 0x80) == 0x00) { /* bsy ? */
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outw(0, dev->ioport[0] + 0x1c);
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outb(0, dev->ioport[0] + 0x1b);
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outb(0, dev->ioport[0] + 0x15);
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outb(0x09, dev->ioport[0] + 0x18);
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while ((inb(dev->ioport[0] + 0x1f) & 0x80) == 0)
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cpu_relax();
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tmport -= 0x08;
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inb(tmport);
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inb(dev->ioport[0] + 0x17);
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return;
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}
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val &= 0x00ff; /* synchronization */
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@ -1145,7 +1125,7 @@ static void tscam(struct Scsi_Host *host)
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i = 8;
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j = 0;
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TCM_ID:
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if ((inw(tmport) & 0x2000) == 0) {
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if ((inw(dev->ioport[0] + 0x1c) & 0x2000) == 0) {
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goto TCM_ID;
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}
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outb(5, 0x80);
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