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nexedi
linux
Commits
b865c715
Commit
b865c715
authored
Feb 28, 2004
by
Russell King
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[ARM] Update ICS IDE driver.
Update ICS IDE driver with ide-dma and bio changes.
parent
26d5aa5a
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1
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1 changed file
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15 additions
and
26 deletions
+15
-26
drivers/ide/arm/icside.c
drivers/ide/arm/icside.c
+15
-26
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drivers/ide/arm/icside.c
View file @
b865c715
/*
* linux/drivers/ide/arm/icside.c
*
* Copyright (c) 1996-2002 Russell King.
*
* Changelog:
* 08-Jun-1996 RMK Created
* 12-Sep-1997 RMK Added interrupt enable/disable
* 17-Apr-1999 RMK Added support for V6 EASI
* 22-May-1999 RMK Added support for V6 DMA
* Copyright (c) 1996-2003 Russell King.
*/
#include <linux/config.h>
...
...
@@ -237,7 +231,7 @@ static void icside_build_sglist(ide_drive_t *drive, struct request *rq)
sg
->
length
=
rq
->
nr_sectors
*
SECTOR_SIZE
;
nents
=
1
;
}
else
{
nents
=
blk_rq_map_sg
(
&
drive
->
queue
,
rq
,
sg
);
nents
=
blk_rq_map_sg
(
drive
->
queue
,
rq
,
sg
);
if
(
rq_data_dir
(
rq
)
==
READ
)
hwif
->
sg_dma_direction
=
DMA_FROM_DEVICE
;
...
...
@@ -487,33 +481,31 @@ icside_dma_common(ide_drive_t *drive, struct request *rq,
set_dma_sg
(
hwif
->
hw
.
dma
,
hwif
->
sg_table
,
hwif
->
sg_nents
);
set_dma_mode
(
hwif
->
hw
.
dma
,
dma_mode
);
drive
->
waiting_for_dma
=
1
;
return
0
;
}
static
int
icside_dma_read
(
ide_drive_t
*
drive
)
{
struct
request
*
rq
=
HWGROUP
(
drive
)
->
rq
;
task_ioreg_t
cmd
=
WIN_NOP
;
task_ioreg_t
cmd
;
if
(
icside_dma_common
(
drive
,
rq
,
DMA_MODE_READ
))
return
1
;
drive
->
waiting_for_dma
=
1
;
if
(
drive
->
media
!=
ide_disk
)
return
0
;
BUG_ON
(
HWGROUP
(
drive
)
->
handler
!=
NULL
);
ide_set_handler
(
drive
,
icside_dmaintr
,
2
*
WAIT_CMD
,
NULL
);
/*
* FIX ME to use only ACB ide_task_t args Struct
*/
#if 0
{
ide_task_t *args = rq->special;
c
omman
d = args->tfRegister[IDE_COMMAND_OFFSET];
c
m
d = args->tfRegister[IDE_COMMAND_OFFSET];
}
#else
if
(
rq
->
flags
&
REQ_DRIVE_TASKFILE
)
{
...
...
@@ -526,35 +518,31 @@ static int icside_dma_read(ide_drive_t *drive)
}
#endif
/* issue cmd to drive */
HWIF
(
drive
)
->
OUTB
(
cmd
,
IDE_COMMAND_REG
);
ide_execute_command
(
drive
,
cmd
,
icside_dmaintr
,
2
*
WAIT_CMD
,
NULL
);
return
icside_dma_begin
(
drive
);
}
int
icside_dma_write
(
ide_drive_t
*
drive
)
static
int
icside_dma_write
(
ide_drive_t
*
drive
)
{
struct
request
*
rq
=
HWGROUP
(
drive
)
->
rq
;
task_ioreg_t
cmd
=
WIN_NOP
;
task_ioreg_t
cmd
;
if
(
icside_dma_common
(
drive
,
rq
,
DMA_MODE_WRITE
))
return
1
;
drive
->
waiting_for_dma
=
1
;
if
(
drive
->
media
!=
ide_disk
)
return
0
;
BUG_ON
(
HWGROUP
(
drive
)
->
handler
!=
NULL
);
ide_set_handler
(
drive
,
icside_dmaintr
,
2
*
WAIT_CMD
,
NULL
);
/*
* FIX ME to use only ACB ide_task_t args Struct
*/
#if 0
{
ide_task_t *args = rq->special;
c
omman
d = args->tfRegister[IDE_COMMAND_OFFSET];
c
m
d = args->tfRegister[IDE_COMMAND_OFFSET];
}
#else
if
(
rq
->
flags
&
REQ_DRIVE_TASKFILE
)
{
...
...
@@ -566,8 +554,9 @@ int icside_dma_write(ide_drive_t *drive)
cmd
=
WIN_WRITEDMA
;
}
#endif
/* issue cmd to drive */
HWIF
(
drive
)
->
OUTB
(
cmd
,
IDE_COMMAND_REG
);
ide_execute_command
(
drive
,
cmd
,
icside_dmaintr
,
2
*
WAIT_CMD
,
NULL
);
return
icside_dma_begin
(
drive
);
}
...
...
@@ -787,7 +776,7 @@ icside_register_v6(struct icside_state *state, struct expansion_card *ec)
state
->
hwif
[
0
]
=
hwif
;
state
->
hwif
[
1
]
=
mate
;
ec
->
irq_data
=
state
;
ec
->
irq_data
=
state
;
ec
->
ops
=
&
icside_ops_arcin_v6
;
hwif
->
maskproc
=
icside_maskproc
;
...
...
@@ -797,7 +786,7 @@ icside_register_v6(struct icside_state *state, struct expansion_card *ec)
hwif
->
serialized
=
1
;
hwif
->
config_data
=
slot_port
;
hwif
->
select_data
=
sel
;
hwif
->
hw
.
dma
=
ec
->
dma
;
hwif
->
hw
.
dma
=
ec
->
dma
;
mate
->
maskproc
=
icside_maskproc
;
mate
->
channel
=
1
;
...
...
@@ -806,7 +795,7 @@ icside_register_v6(struct icside_state *state, struct expansion_card *ec)
mate
->
serialized
=
1
;
mate
->
config_data
=
slot_port
;
mate
->
select_data
=
sel
|
1
;
mate
->
hw
.
dma
=
ec
->
dma
;
mate
->
hw
.
dma
=
ec
->
dma
;
if
(
ec
->
dma
!=
NO_DMA
&&
!
request_dma
(
ec
->
dma
,
hwif
->
name
))
{
icside_dma_init
(
hwif
);
...
...
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