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nexedi
linux
Commits
a86128f1
Commit
a86128f1
authored
May 24, 2003
by
Alexander Viro
Committed by
Linus Torvalds
May 24, 2003
Browse files
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[PATCH] pg.c macroectomy
This removes cpp abuses - same as had been done for pd/pf/pcd.
parent
4397a191
Changes
1
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Showing
1 changed file
with
31 additions
and
19 deletions
+31
-19
drivers/block/paride/pg.c
drivers/block/paride/pg.c
+31
-19
No files found.
drivers/block/paride/pg.c
View file @
a86128f1
...
...
@@ -281,8 +281,20 @@ void pg_init_units( void )
}
}
#define WR(c,r,v) pi_write_regr(PI,c,r,v)
#define RR(c,r) (pi_read_regr(PI,c,r))
static
inline
int
status_reg
(
int
unit
)
{
return
pi_read_regr
(
PI
,
1
,
6
);
}
static
inline
int
read_reg
(
int
unit
,
int
reg
)
{
return
pi_read_regr
(
PI
,
0
,
reg
);
}
static
inline
void
write_reg
(
int
unit
,
int
reg
,
int
val
)
{
pi_write_regr
(
PI
,
0
,
reg
,
val
);
}
#define DRIVE (0xa0+0x10*PG.drive)
...
...
@@ -299,7 +311,7 @@ static int pg_wait(int unit, int go, int stop, unsigned long tmo, char *msg)
PG
.
status
=
0
;
j
=
0
;
while
((((
r
=
RR
(
1
,
6
))
&
go
)
||
(
stop
&&
(
!
(
r
&
stop
))))
while
((((
r
=
status_reg
(
unit
))
&
go
)
||
(
stop
&&
(
!
(
r
&
stop
))))
&&
time_before
(
jiffies
,
tmo
))
{
if
(
j
++
<
PG_SPIN
)
udelay
(
PG_SPIN_DEL
);
...
...
@@ -310,9 +322,9 @@ static int pg_wait(int unit, int go, int stop, unsigned long tmo, char *msg)
to
=
time_after_eq
(
jiffies
,
tmo
);
if
((
r
&
(
STAT_ERR
&
stop
))
||
to
)
{
s
=
RR
(
0
,
7
);
e
=
RR
(
0
,
1
);
p
=
RR
(
0
,
2
);
s
=
read_reg
(
unit
,
7
);
e
=
read_reg
(
unit
,
1
);
p
=
read_reg
(
unit
,
2
);
if
(
verbose
>
1
)
printk
(
"%s: %s: stat=0x%x err=0x%x phase=%d%s
\n
"
,
PG
.
name
,
msg
,
s
,
e
,
p
,
to
?
" timeout"
:
""
);
...
...
@@ -330,23 +342,23 @@ static int pg_command(int unit, char *cmd, int dlen, unsigned long tmo)
pi_connect
(
PI
);
WR
(
0
,
6
,
DRIVE
);
write_reg
(
unit
,
6
,
DRIVE
);
if
(
pg_wait
(
unit
,
STAT_BUSY
|
STAT_DRQ
,
0
,
tmo
,
"before command"
))
{
pi_disconnect
(
PI
);
return
-
1
;
}
WR
(
0
,
4
,
dlen
%
256
);
WR
(
0
,
5
,
dlen
/
256
);
WR
(
0
,
7
,
0xa0
);
/* ATAPI packet command */
write_reg
(
unit
,
4
,
dlen
%
256
);
write_reg
(
unit
,
5
,
dlen
/
256
);
write_reg
(
unit
,
7
,
0xa0
);
/* ATAPI packet command */
if
(
pg_wait
(
unit
,
STAT_BUSY
,
STAT_DRQ
,
tmo
,
"command DRQ"
))
{
pi_disconnect
(
PI
);
return
-
1
;
}
if
(
RR
(
0
,
2
)
!=
1
)
{
if
(
read_reg
(
unit
,
2
)
!=
1
)
{
printk
(
"%s: command phase error
\n
"
,
PG
.
name
);
pi_disconnect
(
PI
);
return
-
1
;
...
...
@@ -371,10 +383,10 @@ static int pg_completion(int unit, char *buf, unsigned long tmo)
PG
.
dlen
=
0
;
while
(
RR
(
0
,
7
)
&
STAT_DRQ
)
{
d
=
(
RR
(
0
,
4
)
+
256
*
RR
(
0
,
5
));
while
(
read_reg
(
unit
,
7
)
&
STAT_DRQ
)
{
d
=
(
read_reg
(
unit
,
4
)
+
256
*
read_reg
(
unit
,
5
));
n
=
((
d
+
3
)
&
0xfffc
);
p
=
RR
(
0
,
2
)
&
3
;
p
=
read_reg
(
unit
,
2
)
&
3
;
if
(
p
==
0
)
pi_write_block
(
PI
,
buf
,
n
);
if
(
p
==
2
)
...
...
@@ -399,21 +411,21 @@ static int pg_reset( int unit )
int
expect
[
5
]
=
{
1
,
1
,
1
,
0x14
,
0xeb
};
pi_connect
(
PI
);
WR
(
0
,
6
,
DRIVE
);
WR
(
0
,
7
,
8
);
write_reg
(
unit
,
6
,
DRIVE
);
write_reg
(
unit
,
7
,
8
);
pg_sleep
(
20
*
HZ
/
1000
);
k
=
0
;
while
((
k
++
<
PG_RESET_TMO
)
&&
(
RR
(
1
,
6
)
&
STAT_BUSY
))
while
((
k
++
<
PG_RESET_TMO
)
&&
(
status_reg
(
unit
)
&
STAT_BUSY
))
pg_sleep
(
1
);
flg
=
1
;
for
(
i
=
0
;
i
<
5
;
i
++
)
flg
&=
(
RR
(
0
,
i
+
1
)
==
expect
[
i
]);
for
(
i
=
0
;
i
<
5
;
i
++
)
flg
&=
(
read_reg
(
unit
,
i
+
1
)
==
expect
[
i
]);
if
(
verbose
)
{
printk
(
"%s: Reset (%d) signature = "
,
PG
.
name
,
k
);
for
(
i
=
0
;
i
<
5
;
i
++
)
printk
(
"%3x"
,
RR
(
0
,
i
+
1
));
for
(
i
=
0
;
i
<
5
;
i
++
)
printk
(
"%3x"
,
read_reg
(
unit
,
i
+
1
));
if
(
!
flg
)
printk
(
" (incorrect)"
);
printk
(
"
\n
"
);
}
...
...
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