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ide: do not access ide_drive_t 'drive_data' field directly

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Change ide_drive_t 'drive_data' field from 'unsigned int' type to 'void *'
type, allowing a wider range of values/types to be stored in this field.

Added 'ide_get_drivedata' and 'ide_set_drivedata' helpers to get and set
the 'drive_data' field.

Fixed all host drivers to maintain coherency with the change in the
'drive_data' field type.

Signed-off-by: Joao Ramos <joao.ramos@inov.pt>
[bart: fix qd65xx build, cast to 'unsigned long', minor Coding Style fixups]
Acked-by: Sergei Shtylyov <sshtylyov@ru.montavista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Joao Ramos
2009-06-15 22:13:44 +02:00
committed by Bartlomiej Zolnierkiewicz
parent 3779f818a4
commit 5bfb151f1f
9 changed files with 94 additions and 40 deletions
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33
drivers/ide/ht6560b.c
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@@ -44,7 +44,12 @@
* bit3 (0x08): "1" 3 cycle time, "0" 2 cycle time (?)
*/
#define HT_CONFIG_PORT 0x3e6
#define HT_CONFIG(drivea) (u8)(((drivea)->drive_data & 0xff00) >> 8)
static inline u8 HT_CONFIG(ide_drive_t *drive)
{
return ((unsigned long)ide_get_drivedata(drive) & 0xff00) >> 8;
}
/*
* FIFO + PREFETCH (both a/b-model)
*/
@@ -90,7 +95,11 @@
* Active Time for each drive. Smaller value gives higher speed.
* In case of failures you should probably fall back to a higher value.
*/
#define HT_TIMING(drivea) (u8)((drivea)->drive_data & 0x00ff)
static inline u8 HT_TIMING(ide_drive_t *drive)
{
return (unsigned long)ide_get_drivedata(drive) & 0x00ff;
}
#define HT_TIMING_DEFAULT 0xff
/*
@@ -242,23 +251,27 @@ static DEFINE_SPINLOCK(ht6560b_lock);
*/
static void ht_set_prefetch(ide_drive_t *drive, u8 state)
{
unsigned long flags;
unsigned long flags, config;
int t = HT_PREFETCH_MODE << 8;
spin_lock_irqsave(&ht6560b_lock, flags);
config = (unsigned long)ide_get_drivedata(drive);
/*
* Prefetch mode and unmask irq seems to conflict
*/
if (state) {
drive->drive_data |= t; /* enable prefetch mode */
config |= t; /* enable prefetch mode */
drive->dev_flags |= IDE_DFLAG_NO_UNMASK;
drive->dev_flags &= ~IDE_DFLAG_UNMASK;
} else {
drive->drive_data &= ~t; /* disable prefetch mode */
config &= ~t; /* disable prefetch mode */
drive->dev_flags &= ~IDE_DFLAG_NO_UNMASK;
}
ide_set_drivedata(drive, (void *)config);
spin_unlock_irqrestore(&ht6560b_lock, flags);
#ifdef DEBUG
@@ -268,7 +281,7 @@ static void ht_set_prefetch(ide_drive_t *drive, u8 state)
static void ht6560b_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
unsigned long flags;
unsigned long flags, config;
u8 timing;
switch (pio) {
@@ -281,8 +294,10 @@ static void ht6560b_set_pio_mode(ide_drive_t *drive, const u8 pio)
timing = ht_pio2timings(drive, pio);
spin_lock_irqsave(&ht6560b_lock, flags);
drive->drive_data &= 0xff00;
drive->drive_data |= timing;
config = (unsigned long)ide_get_drivedata(drive);
config &= 0xff00;
config |= timing;
ide_set_drivedata(drive, (void *)config);
spin_unlock_irqrestore(&ht6560b_lock, flags);
#ifdef DEBUG
@@ -299,7 +314,7 @@ static void __init ht6560b_init_dev(ide_drive_t *drive)
if (hwif->channel)
t |= (HT_SECONDARY_IF << 8);
drive->drive_data = t;
ide_set_drivedata(drive, (void *)t);
}
static int probe_ht6560b;