2005-04-17 06:20:36 +08:00
|
|
|
/*
|
|
|
|
* Copyright (C) 2000-2002 Andre Hedrick <andre@linux-ide.org>
|
2008-11-03 04:40:08 +08:00
|
|
|
* Copyright (C) 2003 Red Hat
|
2005-04-17 06:20:36 +08:00
|
|
|
*
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include <linux/module.h>
|
|
|
|
#include <linux/types.h>
|
|
|
|
#include <linux/string.h>
|
|
|
|
#include <linux/kernel.h>
|
|
|
|
#include <linux/timer.h>
|
|
|
|
#include <linux/mm.h>
|
|
|
|
#include <linux/interrupt.h>
|
|
|
|
#include <linux/major.h>
|
|
|
|
#include <linux/errno.h>
|
|
|
|
#include <linux/genhd.h>
|
|
|
|
#include <linux/blkpg.h>
|
|
|
|
#include <linux/slab.h>
|
|
|
|
#include <linux/pci.h>
|
|
|
|
#include <linux/delay.h>
|
|
|
|
#include <linux/ide.h>
|
|
|
|
#include <linux/bitops.h>
|
2006-07-30 18:03:29 +08:00
|
|
|
#include <linux/nmi.h>
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
#include <asm/byteorder.h>
|
|
|
|
#include <asm/irq.h>
|
|
|
|
#include <asm/uaccess.h>
|
|
|
|
#include <asm/io.h>
|
|
|
|
|
2008-07-16 03:21:48 +08:00
|
|
|
void SELECT_MASK(ide_drive_t *drive, int mask)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2008-04-27 04:25:14 +08:00
|
|
|
const struct ide_port_ops *port_ops = drive->hwif->port_ops;
|
|
|
|
|
|
|
|
if (port_ops && port_ops->maskproc)
|
|
|
|
port_ops->maskproc(drive, mask);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
2008-07-24 01:55:53 +08:00
|
|
|
u8 ide_read_error(ide_drive_t *drive)
|
|
|
|
{
|
2009-04-08 20:13:03 +08:00
|
|
|
struct ide_taskfile tf;
|
2008-07-24 01:55:53 +08:00
|
|
|
|
2009-04-08 20:13:03 +08:00
|
|
|
drive->hwif->tp_ops->tf_read(drive, &tf, IDE_VALID_ERROR);
|
2008-07-24 01:55:53 +08:00
|
|
|
|
2009-04-08 20:13:03 +08:00
|
|
|
return tf.error;
|
2008-07-24 01:55:53 +08:00
|
|
|
}
|
|
|
|
EXPORT_SYMBOL_GPL(ide_read_error);
|
|
|
|
|
2008-10-11 04:39:19 +08:00
|
|
|
void ide_fix_driveid(u16 *id)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
|
|
|
#ifndef __LITTLE_ENDIAN
|
|
|
|
# ifdef __BIG_ENDIAN
|
|
|
|
int i;
|
2008-10-11 04:39:18 +08:00
|
|
|
|
2008-10-11 04:39:19 +08:00
|
|
|
for (i = 0; i < 256; i++)
|
2008-10-11 04:39:18 +08:00
|
|
|
id[i] = __le16_to_cpu(id[i]);
|
2005-04-17 06:20:36 +08:00
|
|
|
# else
|
|
|
|
# error "Please fix <asm/byteorder.h>"
|
|
|
|
# endif
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
2007-11-06 04:42:29 +08:00
|
|
|
/*
|
|
|
|
* ide_fixstring() cleans up and (optionally) byte-swaps a text string,
|
|
|
|
* removing leading/trailing blanks and compressing internal blanks.
|
|
|
|
* It is primarily used to tidy up the model name/number fields as
|
2008-10-11 04:39:21 +08:00
|
|
|
* returned by the ATA_CMD_ID_ATA[PI] commands.
|
2007-11-06 04:42:29 +08:00
|
|
|
*/
|
|
|
|
|
2009-03-25 06:22:47 +08:00
|
|
|
void ide_fixstring(u8 *s, const int bytecount, const int byteswap)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
ide: re-code ide_fixstring() loop to be less evil
On Friday 25 July 2008, Linus Torvalds wrote:
>
> On Fri, 25 Jul 2008, Ben Dooks wrote:
> >
> > personally, i would much prefer to see the loop being less evil
> > like:
> >
> > for (p = s; p < end; p += 2)
> > be16_to_cpus((u16 *)p);
>
> Well, in this case, the code actually depends on 'p' being back at the
> start of the buffer by the end of it all, so it would need some more
> changes than that.
>
> But yes, I applied David's patch, but I _also_ suspect that we would be
> better off without code that does horrid things like casts and assignments
> inside the function arguments.
>
> So it would be nice to re-code that loop to be more readable. But due to
> the reliance of 'p' being 's' after the loop, the minimal patch would be
> something like the appended.
>
> Bartlomiej - take this or not, I'm not going to commit it - I haven't
> tested it, nor do I even have any machines that would trigger it. So this
> is more a "maybe something like this" than anything else.
From: Linus Torvalds <torvalds@linux-foundation.org>
CC: Ben Dooks <ben-linux@fluff.org>
Cc: David Miller <davem@davemloft.net>
Cc: harvey.harrison@gmail.com
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-10-11 04:39:22 +08:00
|
|
|
u8 *p, *end = &s[bytecount & ~1]; /* bytecount must be even */
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
if (byteswap) {
|
|
|
|
/* convert from big-endian to host byte order */
|
ide: re-code ide_fixstring() loop to be less evil
On Friday 25 July 2008, Linus Torvalds wrote:
>
> On Fri, 25 Jul 2008, Ben Dooks wrote:
> >
> > personally, i would much prefer to see the loop being less evil
> > like:
> >
> > for (p = s; p < end; p += 2)
> > be16_to_cpus((u16 *)p);
>
> Well, in this case, the code actually depends on 'p' being back at the
> start of the buffer by the end of it all, so it would need some more
> changes than that.
>
> But yes, I applied David's patch, but I _also_ suspect that we would be
> better off without code that does horrid things like casts and assignments
> inside the function arguments.
>
> So it would be nice to re-code that loop to be more readable. But due to
> the reliance of 'p' being 's' after the loop, the minimal patch would be
> something like the appended.
>
> Bartlomiej - take this or not, I'm not going to commit it - I haven't
> tested it, nor do I even have any machines that would trigger it. So this
> is more a "maybe something like this" than anything else.
From: Linus Torvalds <torvalds@linux-foundation.org>
CC: Ben Dooks <ben-linux@fluff.org>
Cc: David Miller <davem@davemloft.net>
Cc: harvey.harrison@gmail.com
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-10-11 04:39:22 +08:00
|
|
|
for (p = s ; p != end ; p += 2)
|
|
|
|
be16_to_cpus((u16 *) p);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
ide: re-code ide_fixstring() loop to be less evil
On Friday 25 July 2008, Linus Torvalds wrote:
>
> On Fri, 25 Jul 2008, Ben Dooks wrote:
> >
> > personally, i would much prefer to see the loop being less evil
> > like:
> >
> > for (p = s; p < end; p += 2)
> > be16_to_cpus((u16 *)p);
>
> Well, in this case, the code actually depends on 'p' being back at the
> start of the buffer by the end of it all, so it would need some more
> changes than that.
>
> But yes, I applied David's patch, but I _also_ suspect that we would be
> better off without code that does horrid things like casts and assignments
> inside the function arguments.
>
> So it would be nice to re-code that loop to be more readable. But due to
> the reliance of 'p' being 's' after the loop, the minimal patch would be
> something like the appended.
>
> Bartlomiej - take this or not, I'm not going to commit it - I haven't
> tested it, nor do I even have any machines that would trigger it. So this
> is more a "maybe something like this" than anything else.
From: Linus Torvalds <torvalds@linux-foundation.org>
CC: Ben Dooks <ben-linux@fluff.org>
Cc: David Miller <davem@davemloft.net>
Cc: harvey.harrison@gmail.com
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-10-11 04:39:22 +08:00
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
/* strip leading blanks */
|
ide: re-code ide_fixstring() loop to be less evil
On Friday 25 July 2008, Linus Torvalds wrote:
>
> On Fri, 25 Jul 2008, Ben Dooks wrote:
> >
> > personally, i would much prefer to see the loop being less evil
> > like:
> >
> > for (p = s; p < end; p += 2)
> > be16_to_cpus((u16 *)p);
>
> Well, in this case, the code actually depends on 'p' being back at the
> start of the buffer by the end of it all, so it would need some more
> changes than that.
>
> But yes, I applied David's patch, but I _also_ suspect that we would be
> better off without code that does horrid things like casts and assignments
> inside the function arguments.
>
> So it would be nice to re-code that loop to be more readable. But due to
> the reliance of 'p' being 's' after the loop, the minimal patch would be
> something like the appended.
>
> Bartlomiej - take this or not, I'm not going to commit it - I haven't
> tested it, nor do I even have any machines that would trigger it. So this
> is more a "maybe something like this" than anything else.
From: Linus Torvalds <torvalds@linux-foundation.org>
CC: Ben Dooks <ben-linux@fluff.org>
Cc: David Miller <davem@davemloft.net>
Cc: harvey.harrison@gmail.com
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-10-11 04:39:22 +08:00
|
|
|
p = s;
|
2005-04-17 06:20:36 +08:00
|
|
|
while (s != end && *s == ' ')
|
|
|
|
++s;
|
|
|
|
/* compress internal blanks and strip trailing blanks */
|
|
|
|
while (s != end && *s) {
|
|
|
|
if (*s++ != ' ' || (s != end && *s && *s != ' '))
|
|
|
|
*p++ = *(s-1);
|
|
|
|
}
|
|
|
|
/* wipe out trailing garbage */
|
|
|
|
while (p != end)
|
|
|
|
*p++ = '\0';
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(ide_fixstring);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This routine busy-waits for the drive status to be not "busy".
|
|
|
|
* It then checks the status for all of the "good" bits and none
|
|
|
|
* of the "bad" bits, and if all is okay it returns 0. All other
|
2007-10-13 23:47:49 +08:00
|
|
|
* cases return error -- caller may then invoke ide_error().
|
2005-04-17 06:20:36 +08:00
|
|
|
*
|
|
|
|
* This routine should get fixed to not hog the cpu during extra long waits..
|
|
|
|
* That could be done by busy-waiting for the first jiffy or two, and then
|
|
|
|
* setting a timer to wake up at half second intervals thereafter,
|
|
|
|
* until timeout is achieved, before timing out.
|
|
|
|
*/
|
2009-03-25 06:22:47 +08:00
|
|
|
static int __ide_wait_stat(ide_drive_t *drive, u8 good, u8 bad,
|
|
|
|
unsigned long timeout, u8 *rstat)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2008-07-24 01:55:52 +08:00
|
|
|
ide_hwif_t *hwif = drive->hwif;
|
2008-07-24 01:55:56 +08:00
|
|
|
const struct ide_tp_ops *tp_ops = hwif->tp_ops;
|
2005-04-17 06:20:36 +08:00
|
|
|
unsigned long flags;
|
2007-10-13 23:47:49 +08:00
|
|
|
int i;
|
|
|
|
u8 stat;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
udelay(1); /* spec allows drive 400ns to assert "BUSY" */
|
2008-07-24 01:55:56 +08:00
|
|
|
stat = tp_ops->read_status(hwif);
|
2008-02-06 09:57:51 +08:00
|
|
|
|
2008-10-11 04:39:21 +08:00
|
|
|
if (stat & ATA_BUSY) {
|
2009-01-15 02:19:02 +08:00
|
|
|
local_save_flags(flags);
|
2009-01-07 00:20:52 +08:00
|
|
|
local_irq_enable_in_hardirq();
|
2005-04-17 06:20:36 +08:00
|
|
|
timeout += jiffies;
|
2008-10-11 04:39:21 +08:00
|
|
|
while ((stat = tp_ops->read_status(hwif)) & ATA_BUSY) {
|
2005-04-17 06:20:36 +08:00
|
|
|
if (time_after(jiffies, timeout)) {
|
|
|
|
/*
|
|
|
|
* One last read after the timeout in case
|
|
|
|
* heavy interrupt load made us not make any
|
|
|
|
* progress during the timeout..
|
|
|
|
*/
|
2008-07-24 01:55:56 +08:00
|
|
|
stat = tp_ops->read_status(hwif);
|
2008-10-11 04:39:21 +08:00
|
|
|
if ((stat & ATA_BUSY) == 0)
|
2005-04-17 06:20:36 +08:00
|
|
|
break;
|
|
|
|
|
|
|
|
local_irq_restore(flags);
|
2007-10-13 23:47:49 +08:00
|
|
|
*rstat = stat;
|
|
|
|
return -EBUSY;
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
}
|
|
|
|
local_irq_restore(flags);
|
|
|
|
}
|
|
|
|
/*
|
|
|
|
* Allow status to settle, then read it again.
|
|
|
|
* A few rare drives vastly violate the 400ns spec here,
|
|
|
|
* so we'll wait up to 10usec for a "good" status
|
|
|
|
* rather than expensively fail things immediately.
|
|
|
|
* This fix courtesy of Matthew Faupel & Niccolo Rigacci.
|
|
|
|
*/
|
|
|
|
for (i = 0; i < 10; i++) {
|
|
|
|
udelay(1);
|
2008-07-24 01:55:56 +08:00
|
|
|
stat = tp_ops->read_status(hwif);
|
2008-02-06 09:57:51 +08:00
|
|
|
|
|
|
|
if (OK_STAT(stat, good, bad)) {
|
2007-10-13 23:47:49 +08:00
|
|
|
*rstat = stat;
|
2005-04-17 06:20:36 +08:00
|
|
|
return 0;
|
2007-10-13 23:47:49 +08:00
|
|
|
}
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
2007-10-13 23:47:49 +08:00
|
|
|
*rstat = stat;
|
|
|
|
return -EFAULT;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* In case of error returns error value after doing "*startstop = ide_error()".
|
|
|
|
* The caller should return the updated value of "startstop" in this case,
|
|
|
|
* "startstop" is unchanged when the function returns 0.
|
|
|
|
*/
|
2009-03-25 06:22:47 +08:00
|
|
|
int ide_wait_stat(ide_startstop_t *startstop, ide_drive_t *drive, u8 good,
|
|
|
|
u8 bad, unsigned long timeout)
|
2007-10-13 23:47:49 +08:00
|
|
|
{
|
|
|
|
int err;
|
|
|
|
u8 stat;
|
|
|
|
|
|
|
|
/* bail early if we've exceeded max_failures */
|
|
|
|
if (drive->max_failures && (drive->failures > drive->max_failures)) {
|
|
|
|
*startstop = ide_stopped;
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
err = __ide_wait_stat(drive, good, bad, timeout, &stat);
|
|
|
|
|
|
|
|
if (err) {
|
|
|
|
char *s = (err == -EBUSY) ? "status timeout" : "status error";
|
|
|
|
*startstop = ide_error(drive, s, stat);
|
|
|
|
}
|
|
|
|
|
|
|
|
return err;
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(ide_wait_stat);
|
|
|
|
|
2007-08-21 04:42:56 +08:00
|
|
|
/**
|
|
|
|
* ide_in_drive_list - look for drive in black/white list
|
|
|
|
* @id: drive identifier
|
2008-10-11 04:39:19 +08:00
|
|
|
* @table: list to inspect
|
2007-08-21 04:42:56 +08:00
|
|
|
*
|
|
|
|
* Look for a drive in the blacklist and the whitelist tables
|
|
|
|
* Returns 1 if the drive is found in the table.
|
|
|
|
*/
|
|
|
|
|
2008-10-11 04:39:19 +08:00
|
|
|
int ide_in_drive_list(u16 *id, const struct drive_list_entry *table)
|
2007-08-21 04:42:56 +08:00
|
|
|
{
|
2008-10-11 04:39:19 +08:00
|
|
|
for ( ; table->id_model; table++)
|
|
|
|
if ((!strcmp(table->id_model, (char *)&id[ATA_ID_PROD])) &&
|
|
|
|
(!table->id_firmware ||
|
|
|
|
strstr((char *)&id[ATA_ID_FW_REV], table->id_firmware)))
|
2007-08-21 04:42:56 +08:00
|
|
|
return 1;
|
|
|
|
return 0;
|
|
|
|
}
|
2007-08-21 04:42:57 +08:00
|
|
|
EXPORT_SYMBOL_GPL(ide_in_drive_list);
|
|
|
|
|
2007-08-21 04:42:56 +08:00
|
|
|
/*
|
|
|
|
* Early UDMA66 devices don't set bit14 to 1, only bit13 is valid.
|
2007-10-27 02:31:16 +08:00
|
|
|
* Some optical devices with the buggy firmwares have the same problem.
|
2007-08-21 04:42:56 +08:00
|
|
|
*/
|
|
|
|
static const struct drive_list_entry ivb_list[] = {
|
|
|
|
{ "QUANTUM FIREBALLlct10 05" , "A03.0900" },
|
2007-10-27 02:31:16 +08:00
|
|
|
{ "TSSTcorp CDDVDW SH-S202J" , "SB00" },
|
2007-11-28 04:35:57 +08:00
|
|
|
{ "TSSTcorp CDDVDW SH-S202J" , "SB01" },
|
|
|
|
{ "TSSTcorp CDDVDW SH-S202N" , "SB00" },
|
|
|
|
{ "TSSTcorp CDDVDW SH-S202N" , "SB01" },
|
2008-04-29 05:44:43 +08:00
|
|
|
{ "TSSTcorp CDDVDW SH-S202H" , "SB00" },
|
|
|
|
{ "TSSTcorp CDDVDW SH-S202H" , "SB01" },
|
2008-12-03 03:40:03 +08:00
|
|
|
{ "SAMSUNG SP0822N" , "WA100-10" },
|
2007-08-21 04:42:56 +08:00
|
|
|
{ NULL , NULL }
|
|
|
|
};
|
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
/*
|
|
|
|
* All hosts that use the 80c ribbon must use!
|
|
|
|
* The name is derived from upper byte of word 93 and the 80c ribbon.
|
|
|
|
*/
|
2009-03-25 06:22:47 +08:00
|
|
|
u8 eighty_ninty_three(ide_drive_t *drive)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2007-05-10 06:01:10 +08:00
|
|
|
ide_hwif_t *hwif = drive->hwif;
|
2008-10-11 04:39:19 +08:00
|
|
|
u16 *id = drive->id;
|
2007-08-21 04:42:56 +08:00
|
|
|
int ivb = ide_in_drive_list(id, ivb_list);
|
2007-05-10 06:01:10 +08:00
|
|
|
|
2007-07-10 05:17:58 +08:00
|
|
|
if (hwif->cbl == ATA_CBL_PATA40_SHORT)
|
|
|
|
return 1;
|
|
|
|
|
2007-08-21 04:42:56 +08:00
|
|
|
if (ivb)
|
|
|
|
printk(KERN_DEBUG "%s: skipping word 93 validity check\n",
|
|
|
|
drive->name);
|
|
|
|
|
2008-10-11 04:39:30 +08:00
|
|
|
if (ata_id_is_sata(id) && !ivb)
|
2008-01-11 06:03:42 +08:00
|
|
|
return 1;
|
|
|
|
|
2007-08-21 04:42:56 +08:00
|
|
|
if (hwif->cbl != ATA_CBL_PATA80 && !ivb)
|
2007-05-10 06:01:10 +08:00
|
|
|
goto no_80w;
|
2006-06-28 19:26:58 +08:00
|
|
|
|
2007-03-27 05:03:18 +08:00
|
|
|
/*
|
|
|
|
* FIXME:
|
2008-03-30 02:48:21 +08:00
|
|
|
* - change master/slave IDENTIFY order
|
2007-08-21 04:42:56 +08:00
|
|
|
* - force bit13 (80c cable present) check also for !ivb devices
|
2007-03-27 05:03:18 +08:00
|
|
|
* (unless the slave device is pre-ATA3)
|
|
|
|
*/
|
2009-05-22 22:23:36 +08:00
|
|
|
if (id[ATA_ID_HW_CONFIG] & 0x4000)
|
2007-05-10 06:01:10 +08:00
|
|
|
return 1;
|
|
|
|
|
2009-05-22 22:23:36 +08:00
|
|
|
if (ivb) {
|
|
|
|
const char *model = (char *)&id[ATA_ID_PROD];
|
|
|
|
|
|
|
|
if (strstr(model, "TSSTcorp CDDVDW SH-S202")) {
|
|
|
|
/*
|
|
|
|
* These ATAPI devices always report 80c cable
|
|
|
|
* so we have to depend on the host in this case.
|
|
|
|
*/
|
|
|
|
if (hwif->cbl == ATA_CBL_PATA80)
|
|
|
|
return 1;
|
|
|
|
} else {
|
|
|
|
/* Depend on the device side cable detection. */
|
|
|
|
if (id[ATA_ID_HW_CONFIG] & 0x2000)
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
}
|
2007-05-10 06:01:10 +08:00
|
|
|
no_80w:
|
2008-10-14 03:39:36 +08:00
|
|
|
if (drive->dev_flags & IDE_DFLAG_UDMA33_WARNED)
|
2007-05-10 06:01:10 +08:00
|
|
|
return 0;
|
|
|
|
|
|
|
|
printk(KERN_WARNING "%s: %s side 80-wire cable detection failed, "
|
|
|
|
"limiting max speed to UDMA33\n",
|
2007-07-10 05:17:58 +08:00
|
|
|
drive->name,
|
|
|
|
hwif->cbl == ATA_CBL_PATA80 ? "drive" : "host");
|
2007-05-10 06:01:10 +08:00
|
|
|
|
2008-10-14 03:39:36 +08:00
|
|
|
drive->dev_flags |= IDE_DFLAG_UDMA33_WARNED;
|
2007-05-10 06:01:10 +08:00
|
|
|
|
|
|
|
return 0;
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
2009-06-07 21:37:09 +08:00
|
|
|
static const char *nien_quirk_list[] = {
|
|
|
|
"QUANTUM FIREBALLlct08 08",
|
|
|
|
"QUANTUM FIREBALLP KA6.4",
|
|
|
|
"QUANTUM FIREBALLP KA9.1",
|
|
|
|
"QUANTUM FIREBALLP KX13.6",
|
|
|
|
"QUANTUM FIREBALLP KX20.5",
|
|
|
|
"QUANTUM FIREBALLP KX27.3",
|
|
|
|
"QUANTUM FIREBALLP LM20.4",
|
|
|
|
"QUANTUM FIREBALLP LM20.5",
|
|
|
|
NULL
|
|
|
|
};
|
|
|
|
|
|
|
|
void ide_check_nien_quirk_list(ide_drive_t *drive)
|
|
|
|
{
|
|
|
|
const char **list, *m = (char *)&drive->id[ATA_ID_PROD];
|
|
|
|
|
|
|
|
for (list = nien_quirk_list; *list != NULL; list++)
|
|
|
|
if (strstr(m, *list) != NULL) {
|
2009-06-07 21:37:10 +08:00
|
|
|
drive->dev_flags |= IDE_DFLAG_NIEN_QUIRK;
|
2009-06-07 21:37:09 +08:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2007-10-20 06:32:36 +08:00
|
|
|
int ide_driveid_update(ide_drive_t *drive)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2008-10-11 04:39:19 +08:00
|
|
|
u16 *id;
|
2009-03-25 06:22:59 +08:00
|
|
|
int rc;
|
2009-03-25 06:22:54 +08:00
|
|
|
|
|
|
|
id = kmalloc(SECTOR_SIZE, GFP_ATOMIC);
|
|
|
|
if (id == NULL)
|
|
|
|
return 0;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
SELECT_MASK(drive, 1);
|
2009-03-25 06:22:59 +08:00
|
|
|
rc = ide_dev_read_id(drive, ATA_CMD_ID_ATA, id);
|
|
|
|
SELECT_MASK(drive, 0);
|
2009-03-25 06:22:54 +08:00
|
|
|
|
2009-03-25 06:22:59 +08:00
|
|
|
if (rc)
|
2009-03-25 06:22:54 +08:00
|
|
|
goto out_err;
|
2009-03-25 06:22:58 +08:00
|
|
|
|
2008-10-11 04:39:19 +08:00
|
|
|
drive->id[ATA_ID_UDMA_MODES] = id[ATA_ID_UDMA_MODES];
|
|
|
|
drive->id[ATA_ID_MWDMA_MODES] = id[ATA_ID_MWDMA_MODES];
|
|
|
|
drive->id[ATA_ID_SWDMA_MODES] = id[ATA_ID_SWDMA_MODES];
|
2009-04-01 02:15:28 +08:00
|
|
|
drive->id[ATA_ID_CFA_MODES] = id[ATA_ID_CFA_MODES];
|
2008-10-11 04:39:19 +08:00
|
|
|
/* anything more ? */
|
|
|
|
|
|
|
|
kfree(id);
|
|
|
|
|
2008-10-14 03:39:36 +08:00
|
|
|
if ((drive->dev_flags & IDE_DFLAG_USING_DMA) && ide_id_dma_bug(drive))
|
2008-10-11 04:39:19 +08:00
|
|
|
ide_dma_off(drive);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
return 1;
|
2009-03-25 06:22:54 +08:00
|
|
|
out_err:
|
|
|
|
if (rc == 2)
|
|
|
|
printk(KERN_ERR "%s: %s: bad status\n", drive->name, __func__);
|
|
|
|
kfree(id);
|
|
|
|
return 0;
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
2007-10-13 23:47:49 +08:00
|
|
|
int ide_config_drive_speed(ide_drive_t *drive, u8 speed)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2007-10-13 23:47:49 +08:00
|
|
|
ide_hwif_t *hwif = drive->hwif;
|
2008-07-24 01:55:56 +08:00
|
|
|
const struct ide_tp_ops *tp_ops = hwif->tp_ops;
|
2009-04-08 20:13:03 +08:00
|
|
|
struct ide_taskfile tf;
|
2008-10-11 04:39:19 +08:00
|
|
|
u16 *id = drive->id, i;
|
2007-11-28 04:35:52 +08:00
|
|
|
int error = 0;
|
2005-04-17 06:20:36 +08:00
|
|
|
u8 stat;
|
|
|
|
|
|
|
|
#ifdef CONFIG_BLK_DEV_IDEDMA
|
2008-04-27 04:25:24 +08:00
|
|
|
if (hwif->dma_ops) /* check if host supports DMA */
|
|
|
|
hwif->dma_ops->dma_host_set(drive, 0);
|
2005-04-17 06:20:36 +08:00
|
|
|
#endif
|
|
|
|
|
2007-11-28 04:35:52 +08:00
|
|
|
/* Skip setting PIO flow-control modes on pre-EIDE drives */
|
2008-10-11 04:39:19 +08:00
|
|
|
if ((speed & 0xf8) == XFER_PIO_0 && ata_id_has_iordy(drive->id) == 0)
|
2007-11-28 04:35:52 +08:00
|
|
|
goto skip;
|
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
/*
|
|
|
|
* Don't use ide_wait_cmd here - it will
|
|
|
|
* attempt to set_geometry and recalibrate,
|
|
|
|
* but for some reason these don't work at
|
|
|
|
* this point (lost interrupt).
|
|
|
|
*/
|
2009-03-25 06:22:47 +08:00
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
/*
|
|
|
|
* FIXME: we race against the running IRQ here if
|
|
|
|
* this is called from non IRQ context. If we use
|
|
|
|
* disable_irq() we hang on the error path. Work
|
|
|
|
* is needed.
|
|
|
|
*/
|
2009-03-25 06:22:47 +08:00
|
|
|
disable_irq_nosync(hwif->irq);
|
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
udelay(1);
|
2009-04-01 02:15:33 +08:00
|
|
|
tp_ops->dev_select(drive);
|
2008-10-18 00:09:15 +08:00
|
|
|
SELECT_MASK(drive, 1);
|
2005-04-17 06:20:36 +08:00
|
|
|
udelay(1);
|
2009-04-01 02:15:30 +08:00
|
|
|
tp_ops->write_devctl(hwif, ATA_NIEN | ATA_DEVCTL_OBS);
|
2008-07-24 01:55:52 +08:00
|
|
|
|
2009-04-08 20:13:03 +08:00
|
|
|
memset(&tf, 0, sizeof(tf));
|
|
|
|
tf.feature = SETFEATURES_XFER;
|
|
|
|
tf.nsect = speed;
|
2008-07-24 01:55:52 +08:00
|
|
|
|
2009-04-08 20:13:03 +08:00
|
|
|
tp_ops->tf_load(drive, &tf, IDE_VALID_FEATURE | IDE_VALID_NSECT);
|
2008-07-24 01:55:52 +08:00
|
|
|
|
2008-10-11 04:39:21 +08:00
|
|
|
tp_ops->exec_command(hwif, ATA_CMD_SET_FEATURES);
|
2008-07-24 01:55:52 +08:00
|
|
|
|
2009-06-07 21:37:10 +08:00
|
|
|
if (drive->dev_flags & IDE_DFLAG_NIEN_QUIRK)
|
2009-04-01 02:15:30 +08:00
|
|
|
tp_ops->write_devctl(hwif, ATA_DEVCTL_OBS);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2007-10-13 23:47:49 +08:00
|
|
|
error = __ide_wait_stat(drive, drive->ready_stat,
|
2008-10-11 04:39:21 +08:00
|
|
|
ATA_BUSY | ATA_DRQ | ATA_ERR,
|
2007-10-13 23:47:49 +08:00
|
|
|
WAIT_CMD, &stat);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
SELECT_MASK(drive, 0);
|
|
|
|
|
|
|
|
enable_irq(hwif->irq);
|
|
|
|
|
|
|
|
if (error) {
|
|
|
|
(void) ide_dump_status(drive, "set_drive_speed_status", stat);
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
|
2009-04-01 02:15:27 +08:00
|
|
|
if (speed >= XFER_SW_DMA_0) {
|
|
|
|
id[ATA_ID_UDMA_MODES] &= ~0xFF00;
|
|
|
|
id[ATA_ID_MWDMA_MODES] &= ~0x0700;
|
|
|
|
id[ATA_ID_SWDMA_MODES] &= ~0x0700;
|
2009-04-01 02:15:28 +08:00
|
|
|
if (ata_id_is_cfa(id))
|
|
|
|
id[ATA_ID_CFA_MODES] &= ~0x0E00;
|
|
|
|
} else if (ata_id_is_cfa(id))
|
|
|
|
id[ATA_ID_CFA_MODES] &= ~0x01C0;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2007-11-28 04:35:52 +08:00
|
|
|
skip:
|
2005-04-17 06:20:36 +08:00
|
|
|
#ifdef CONFIG_BLK_DEV_IDEDMA
|
2008-10-14 03:39:36 +08:00
|
|
|
if (speed >= XFER_SW_DMA_0 && (drive->dev_flags & IDE_DFLAG_USING_DMA))
|
2008-04-27 04:25:24 +08:00
|
|
|
hwif->dma_ops->dma_host_set(drive, 1);
|
|
|
|
else if (hwif->dma_ops) /* check if host supports DMA */
|
2008-01-27 03:13:01 +08:00
|
|
|
ide_dma_off_quietly(drive);
|
2005-04-17 06:20:36 +08:00
|
|
|
#endif
|
|
|
|
|
2008-10-11 04:39:19 +08:00
|
|
|
if (speed >= XFER_UDMA_0) {
|
|
|
|
i = 1 << (speed - XFER_UDMA_0);
|
|
|
|
id[ATA_ID_UDMA_MODES] |= (i << 8 | i);
|
2009-04-01 02:15:28 +08:00
|
|
|
} else if (ata_id_is_cfa(id) && speed >= XFER_MW_DMA_3) {
|
|
|
|
i = speed - XFER_MW_DMA_2;
|
|
|
|
id[ATA_ID_CFA_MODES] |= i << 9;
|
2008-10-11 04:39:19 +08:00
|
|
|
} else if (speed >= XFER_MW_DMA_0) {
|
|
|
|
i = 1 << (speed - XFER_MW_DMA_0);
|
|
|
|
id[ATA_ID_MWDMA_MODES] |= (i << 8 | i);
|
|
|
|
} else if (speed >= XFER_SW_DMA_0) {
|
|
|
|
i = 1 << (speed - XFER_SW_DMA_0);
|
|
|
|
id[ATA_ID_SWDMA_MODES] |= (i << 8 | i);
|
2009-04-01 02:15:28 +08:00
|
|
|
} else if (ata_id_is_cfa(id) && speed >= XFER_PIO_5) {
|
|
|
|
i = speed - XFER_PIO_4;
|
|
|
|
id[ATA_ID_CFA_MODES] |= i << 6;
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
2008-10-11 04:39:19 +08:00
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
if (!drive->init_speed)
|
|
|
|
drive->init_speed = speed;
|
|
|
|
drive->current_speed = speed;
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This should get invoked any time we exit the driver to
|
|
|
|
* wait for an interrupt response from a drive. handler() points
|
|
|
|
* at the appropriate code to handle the next interrupt, and a
|
|
|
|
* timer is started to prevent us from waiting forever in case
|
|
|
|
* something goes wrong (see the ide_timer_expiry() handler later on).
|
|
|
|
*
|
|
|
|
* See also ide_execute_command
|
|
|
|
*/
|
2009-03-25 06:22:47 +08:00
|
|
|
void __ide_set_handler(ide_drive_t *drive, ide_handler_t *handler,
|
2009-03-27 19:46:46 +08:00
|
|
|
unsigned int timeout)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2009-01-07 00:20:50 +08:00
|
|
|
ide_hwif_t *hwif = drive->hwif;
|
|
|
|
|
|
|
|
BUG_ON(hwif->handler);
|
|
|
|
hwif->handler = handler;
|
|
|
|
hwif->timer.expires = jiffies + timeout;
|
|
|
|
hwif->req_gen_timer = hwif->req_gen;
|
|
|
|
add_timer(&hwif->timer);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
2009-03-27 19:46:46 +08:00
|
|
|
void ide_set_handler(ide_drive_t *drive, ide_handler_t *handler,
|
|
|
|
unsigned int timeout)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2009-01-07 00:20:50 +08:00
|
|
|
ide_hwif_t *hwif = drive->hwif;
|
2005-04-17 06:20:36 +08:00
|
|
|
unsigned long flags;
|
2008-12-30 03:27:31 +08:00
|
|
|
|
2009-01-07 00:20:50 +08:00
|
|
|
spin_lock_irqsave(&hwif->lock, flags);
|
2009-03-27 19:46:46 +08:00
|
|
|
__ide_set_handler(drive, handler, timeout);
|
2009-01-07 00:20:50 +08:00
|
|
|
spin_unlock_irqrestore(&hwif->lock, flags);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(ide_set_handler);
|
2009-03-25 06:22:47 +08:00
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
/**
|
|
|
|
* ide_execute_command - execute an IDE command
|
|
|
|
* @drive: IDE drive to issue the command against
|
2009-03-27 19:46:47 +08:00
|
|
|
* @cmd: command
|
2005-04-17 06:20:36 +08:00
|
|
|
* @handler: handler for next phase
|
|
|
|
* @timeout: timeout for command
|
|
|
|
*
|
|
|
|
* Helper function to issue an IDE command. This handles the
|
2009-03-25 06:22:47 +08:00
|
|
|
* atomicity requirements, command timing and ensures that the
|
2005-04-17 06:20:36 +08:00
|
|
|
* handler and IRQ setup do not race. All IDE command kick off
|
|
|
|
* should go via this function or do equivalent locking.
|
|
|
|
*/
|
2008-01-26 05:17:06 +08:00
|
|
|
|
2009-03-27 19:46:47 +08:00
|
|
|
void ide_execute_command(ide_drive_t *drive, struct ide_cmd *cmd,
|
|
|
|
ide_handler_t *handler, unsigned timeout)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2008-12-30 03:27:31 +08:00
|
|
|
ide_hwif_t *hwif = drive->hwif;
|
2005-04-17 06:20:36 +08:00
|
|
|
unsigned long flags;
|
2008-02-03 02:56:46 +08:00
|
|
|
|
2009-01-07 00:20:50 +08:00
|
|
|
spin_lock_irqsave(&hwif->lock, flags);
|
2009-03-27 19:46:47 +08:00
|
|
|
if ((cmd->protocol != ATAPI_PROT_DMA &&
|
|
|
|
cmd->protocol != ATAPI_PROT_PIO) ||
|
|
|
|
(drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT))
|
|
|
|
__ide_set_handler(drive, handler, timeout);
|
|
|
|
hwif->tp_ops->exec_command(hwif, cmd->tf.command);
|
2008-02-03 02:56:46 +08:00
|
|
|
/*
|
|
|
|
* Drive takes 400nS to respond, we must avoid the IRQ being
|
|
|
|
* serviced before that.
|
|
|
|
*
|
|
|
|
* FIXME: we could skip this delay with care on non shared devices
|
|
|
|
*/
|
2005-04-17 06:20:36 +08:00
|
|
|
ndelay(400);
|
2009-01-07 00:20:50 +08:00
|
|
|
spin_unlock_irqrestore(&hwif->lock, flags);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* ide_wait_not_busy() waits for the currently selected device on the hwif
|
2008-02-02 06:09:36 +08:00
|
|
|
* to report a non-busy status, see comments in ide_probe_port().
|
2005-04-17 06:20:36 +08:00
|
|
|
*/
|
|
|
|
int ide_wait_not_busy(ide_hwif_t *hwif, unsigned long timeout)
|
|
|
|
{
|
|
|
|
u8 stat = 0;
|
|
|
|
|
2009-03-25 06:22:47 +08:00
|
|
|
while (timeout--) {
|
2005-04-17 06:20:36 +08:00
|
|
|
/*
|
|
|
|
* Turn this into a schedule() sleep once I'm sure
|
|
|
|
* about locking issues (2.5 work ?).
|
|
|
|
*/
|
|
|
|
mdelay(1);
|
2008-07-24 01:55:56 +08:00
|
|
|
stat = hwif->tp_ops->read_status(hwif);
|
2008-10-11 04:39:21 +08:00
|
|
|
if ((stat & ATA_BUSY) == 0)
|
2005-04-17 06:20:36 +08:00
|
|
|
return 0;
|
|
|
|
/*
|
|
|
|
* Assume a value of 0xff means nothing is connected to
|
|
|
|
* the interface and it doesn't implement the pull-down
|
|
|
|
* resistor on D7.
|
|
|
|
*/
|
|
|
|
if (stat == 0xff)
|
|
|
|
return -ENODEV;
|
2006-02-03 19:04:55 +08:00
|
|
|
touch_softlockup_watchdog();
|
2006-07-30 18:03:29 +08:00
|
|
|
touch_nmi_watchdog();
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
return -EBUSY;
|
|
|
|
}
|