ide: do not access ide_drive_t 'drive_data' field directly
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>
diff --git a/drivers/ide/ht6560b.c b/drivers/ide/ht6560b.c
index 2fb0f29..aafed80 100644
--- a/drivers/ide/ht6560b.c
+++ b/drivers/ide/ht6560b.c
@@ -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 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 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 @@
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 @@
if (hwif->channel)
t |= (HT_SECONDARY_IF << 8);
- drive->drive_data = t;
+ ide_set_drivedata(drive, (void *)t);
}
static int probe_ht6560b;