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nexedi
linux
Commits
edc5903b
Commit
edc5903b
authored
Sep 11, 2002
by
Jens Axboe
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Plain Diff
ide-geometry updates:
o byte -> u8 o small style cleanups
parent
0037ab50
Changes
1
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1 changed file
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13 additions
and
20 deletions
+13
-20
drivers/ide/ide-geometry.c
drivers/ide/ide-geometry.c
+13
-20
No files found.
drivers/ide/ide-geometry.c
View file @
edc5903b
...
...
@@ -6,8 +6,6 @@
#include <linux/mc146818rtc.h>
#include <asm/io.h>
#ifdef CONFIG_BLK_DEV_IDE
/*
* We query CMOS about hard disks : it could be that we have a SCSI/ESDI/etc
* controller that is BIOS compatible with ST-506, and thus showing up in our
...
...
@@ -25,14 +23,12 @@
* If a drive is not actually on the primary interface, then these parameters
* will be ignored. This results in the user having to supply the logical
* drive geometry as a boot parameter for each drive not on the primary i/f.
*/
/*
*
* The only "perfect" way to handle this would be to modify the setup.[cS] code
* to do BIOS calls Int13h/Fn08h and Int13h/Fn48h to get all of the drive info
* for us during initialization. I have the necessary docs -- any takers? -ml
*/
/*
* I did this, but it doesnt work - there is no reasonable way to find the
*
* I did this, but it doesn't work - there is no reasonable way to find the
* correspondence between the BIOS numbering of the disks and the Linux
* numbering. -aeb
*
...
...
@@ -51,14 +47,13 @@ void probe_cmos_for_drives (ide_hwif_t *hwif)
{
#ifdef __i386__
extern
struct
drive_info_struct
drive_info
;
byte
cmos_disks
,
*
BIOS
=
(
byte
*
)
&
drive_info
;
u8
cmos_disks
,
*
BIOS
=
(
u8
*
)
&
drive_info
;
int
unit
;
unsigned
long
flags
;
#ifdef CONFIG_BLK_DEV_PDC4030
if
(
hwif
->
chipset
==
ide_pdc4030
&&
hwif
->
channel
!=
0
)
return
;
#endif
/* CONFIG_BLK_DEV_PDC4030 */
spin_lock_irqsave
(
&
rtc_lock
,
flags
);
cmos_disks
=
CMOS_READ
(
0x12
);
spin_unlock_irqrestore
(
&
rtc_lock
,
flags
);
...
...
@@ -68,7 +63,7 @@ void probe_cmos_for_drives (ide_hwif_t *hwif)
if
((
cmos_disks
&
(
0xf0
>>
(
unit
*
4
)))
&&
!
drive
->
present
&&
!
drive
->
nobios
)
{
u
nsigned
short
cyl
=
*
(
unsigned
short
*
)
BIOS
;
u
16
cyl
=
*
(
u16
*
)
BIOS
;
unsigned
char
head
=
*
(
BIOS
+
2
);
unsigned
char
sect
=
*
(
BIOS
+
14
);
if
(
cyl
>
0
&&
head
>
0
&&
sect
>
0
&&
sect
<
64
)
{
...
...
@@ -86,10 +81,7 @@ void probe_cmos_for_drives (ide_hwif_t *hwif)
}
#endif
}
#endif
/* CONFIG_BLK_DEV_IDE */
#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
extern
ide_drive_t
*
get_info_ptr
(
kdev_t
);
extern
unsigned
long
current_capacity
(
ide_drive_t
*
);
...
...
@@ -98,10 +90,11 @@ extern unsigned long current_capacity (ide_drive_t *);
* If heads is nonzero: find a translation with this many heads and S=63.
* Otherwise: find out how OnTrack Disk Manager would translate the disk.
*/
static
void
ontrack
(
ide_drive_t
*
drive
,
int
heads
,
unsigned
int
*
c
,
int
*
h
,
int
*
s
)
{
static
const
byte
dm_head_vals
[]
=
{
4
,
8
,
16
,
32
,
64
,
128
,
255
,
0
};
const
byte
*
headp
=
dm_head_vals
;
static
void
ontrack
(
ide_drive_t
*
drive
,
int
heads
,
unsigned
int
*
c
,
int
*
h
,
int
*
s
)
{
static
const
u8
dm_head_vals
[]
=
{
4
,
8
,
16
,
32
,
64
,
128
,
255
,
0
};
const
u8
*
headp
=
dm_head_vals
;
unsigned
long
total
;
/*
...
...
@@ -153,6 +146,7 @@ ontrack(ide_drive_t *drive, int heads, unsigned int *c, int *h, int *s) {
* an IDE disk drive, or if a geometry was "forced" on the commandline.
* Returns 1 if the geometry translation was successful.
*/
int
ide_xlate_1024
(
kdev_t
i_rdev
,
int
xparm
,
int
ptheads
,
const
char
*
msg
)
{
ide_drive_t
*
drive
;
...
...
@@ -217,8 +211,7 @@ int ide_xlate_1024 (kdev_t i_rdev, int xparm, int ptheads, const char *msg)
set_capacity
(
drive
->
disk
,
current_capacity
(
drive
));
if
(
ret
)
printk
(
"%s%s [%d/%d/%d]"
,
msg
,
msg1
,
printk
(
KERN_INFO
"%s%s [%d/%d/%d]"
,
msg
,
msg1
,
drive
->
bios_cyl
,
drive
->
bios_head
,
drive
->
bios_sect
);
return
ret
;
}
#endif
/* defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE) */
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