ide: add struct ide_io_ports (take 3)
* Add struct ide_io_ports and use it instead of `unsigned long io_ports[]`
in ide_hwif_t.
* Rename io_ports[] in hw_regs_t to io_ports_array[].
* Use un-named union for 'unsigned long io_ports_array[]' and 'struct
ide_io_ports io_ports' in hw_regs_t.
* Remove IDE_*_OFFSET defines.
v2:
* scc_pata.c build fix from Stephen Rothwell.
v3:
* Fix ctl_adrr typo in Sparc-specific part of ns87415.c.
(Noticed by Andrew Morton)
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index 9c646bd..5425d30 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -164,7 +164,7 @@
if (port_ops && port_ops->selectproc)
port_ops->selectproc(drive);
- hwif->OUTB(drive->select.all, hwif->io_ports[IDE_SELECT_OFFSET]);
+ hwif->OUTB(drive->select.all, hwif->io_ports.device_addr);
}
void SELECT_MASK (ide_drive_t *drive, int mask)
@@ -194,24 +194,22 @@
*/
static void ata_input_data(ide_drive_t *drive, void *buffer, u32 wcount)
{
- ide_hwif_t *hwif = HWIF(drive);
- u8 io_32bit = drive->io_32bit;
+ ide_hwif_t *hwif = drive->hwif;
+ struct ide_io_ports *io_ports = &hwif->io_ports;
+ u8 io_32bit = drive->io_32bit;
if (io_32bit) {
if (io_32bit & 2) {
unsigned long flags;
local_irq_save(flags);
- ata_vlb_sync(drive, hwif->io_ports[IDE_NSECTOR_OFFSET]);
- hwif->INSL(hwif->io_ports[IDE_DATA_OFFSET], buffer,
- wcount);
+ ata_vlb_sync(drive, io_ports->nsect_addr);
+ hwif->INSL(io_ports->data_addr, buffer, wcount);
local_irq_restore(flags);
} else
- hwif->INSL(hwif->io_ports[IDE_DATA_OFFSET], buffer,
- wcount);
+ hwif->INSL(io_ports->data_addr, buffer, wcount);
} else
- hwif->INSW(hwif->io_ports[IDE_DATA_OFFSET], buffer,
- wcount << 1);
+ hwif->INSW(io_ports->data_addr, buffer, wcount << 1);
}
/*
@@ -219,24 +217,22 @@
*/
static void ata_output_data(ide_drive_t *drive, void *buffer, u32 wcount)
{
- ide_hwif_t *hwif = HWIF(drive);
- u8 io_32bit = drive->io_32bit;
+ ide_hwif_t *hwif = drive->hwif;
+ struct ide_io_ports *io_ports = &hwif->io_ports;
+ u8 io_32bit = drive->io_32bit;
if (io_32bit) {
if (io_32bit & 2) {
unsigned long flags;
local_irq_save(flags);
- ata_vlb_sync(drive, hwif->io_ports[IDE_NSECTOR_OFFSET]);
- hwif->OUTSL(hwif->io_ports[IDE_DATA_OFFSET], buffer,
- wcount);
+ ata_vlb_sync(drive, io_ports->nsect_addr);
+ hwif->OUTSL(io_ports->data_addr, buffer, wcount);
local_irq_restore(flags);
} else
- hwif->OUTSL(hwif->io_ports[IDE_DATA_OFFSET], buffer,
- wcount);
+ hwif->OUTSL(io_ports->data_addr, buffer, wcount);
} else
- hwif->OUTSW(hwif->io_ports[IDE_DATA_OFFSET], buffer,
- wcount << 1);
+ hwif->OUTSW(io_ports->data_addr, buffer, wcount << 1);
}
/*
@@ -255,14 +251,13 @@
#if defined(CONFIG_ATARI) || defined(CONFIG_Q40)
if (MACH_IS_ATARI || MACH_IS_Q40) {
/* Atari has a byte-swapped IDE interface */
- insw_swapw(hwif->io_ports[IDE_DATA_OFFSET], buffer,
- bytecount / 2);
+ insw_swapw(hwif->io_ports.data_addr, buffer, bytecount / 2);
return;
}
#endif /* CONFIG_ATARI || CONFIG_Q40 */
hwif->ata_input_data(drive, buffer, bytecount / 4);
if ((bytecount & 0x03) >= 2)
- hwif->INSW(hwif->io_ports[IDE_DATA_OFFSET],
+ hwif->INSW(hwif->io_ports.data_addr,
(u8 *)buffer + (bytecount & ~0x03), 1);
}
@@ -274,14 +269,13 @@
#if defined(CONFIG_ATARI) || defined(CONFIG_Q40)
if (MACH_IS_ATARI || MACH_IS_Q40) {
/* Atari has a byte-swapped IDE interface */
- outsw_swapw(hwif->io_ports[IDE_DATA_OFFSET], buffer,
- bytecount / 2);
+ outsw_swapw(hwif->io_ports.data_addr, buffer, bytecount / 2);
return;
}
#endif /* CONFIG_ATARI || CONFIG_Q40 */
hwif->ata_output_data(drive, buffer, bytecount / 4);
if ((bytecount & 0x03) >= 2)
- hwif->OUTSW(hwif->io_ports[IDE_DATA_OFFSET],
+ hwif->OUTSW(hwif->io_ports.data_addr,
(u8 *)buffer + (bytecount & ~0x03), 1);
}
@@ -445,7 +439,7 @@
* an interrupt with another pci card/device. We make no assumptions
* about possible isa-pnp and pci-pnp issues yet.
*/
- if (hwif->io_ports[IDE_CONTROL_OFFSET])
+ if (hwif->io_ports.ctl_addr)
stat = ide_read_altstatus(drive);
else
/* Note: this may clear a pending IRQ!! */
@@ -647,7 +641,7 @@
SELECT_MASK(drive, 1);
ide_set_irq(drive, 1);
msleep(50);
- hwif->OUTB(WIN_IDENTIFY, hwif->io_ports[IDE_COMMAND_OFFSET]);
+ hwif->OUTB(WIN_IDENTIFY, hwif->io_ports.command_addr);
timeout = jiffies + WAIT_WORSTCASE;
do {
if (time_after(jiffies, timeout)) {
@@ -696,6 +690,7 @@
int ide_config_drive_speed(ide_drive_t *drive, u8 speed)
{
ide_hwif_t *hwif = drive->hwif;
+ struct ide_io_ports *io_ports = &hwif->io_ports;
int error = 0;
u8 stat;
@@ -734,10 +729,9 @@
SELECT_MASK(drive, 0);
udelay(1);
ide_set_irq(drive, 0);
- hwif->OUTB(speed, hwif->io_ports[IDE_NSECTOR_OFFSET]);
- hwif->OUTB(SETFEATURES_XFER, hwif->io_ports[IDE_FEATURE_OFFSET]);
- hwif->OUTBSYNC(drive, WIN_SETFEATURES,
- hwif->io_ports[IDE_COMMAND_OFFSET]);
+ hwif->OUTB(speed, io_ports->nsect_addr);
+ hwif->OUTB(SETFEATURES_XFER, io_ports->feature_addr);
+ hwif->OUTBSYNC(drive, WIN_SETFEATURES, io_ports->command_addr);
if (drive->quirk_list == 2)
ide_set_irq(drive, 1);
@@ -845,7 +839,7 @@
spin_lock_irqsave(&ide_lock, flags);
__ide_set_handler(drive, handler, timeout, expiry);
- hwif->OUTBSYNC(drive, cmd, hwif->io_ports[IDE_COMMAND_OFFSET]);
+ hwif->OUTBSYNC(drive, cmd, hwif->io_ports.command_addr);
/*
* Drive takes 400nS to respond, we must avoid the IRQ being
* serviced before that.
@@ -1029,6 +1023,7 @@
unsigned long flags;
ide_hwif_t *hwif;
ide_hwgroup_t *hwgroup;
+ struct ide_io_ports *io_ports;
const struct ide_port_ops *port_ops;
u8 ctl;
@@ -1036,6 +1031,8 @@
hwif = HWIF(drive);
hwgroup = HWGROUP(drive);
+ io_ports = &hwif->io_ports;
+
/* We must not reset with running handlers */
BUG_ON(hwgroup->handler != NULL);
@@ -1045,8 +1042,7 @@
pre_reset(drive);
SELECT_DRIVE(drive);
udelay (20);
- hwif->OUTBSYNC(drive, WIN_SRST,
- hwif->io_ports[IDE_COMMAND_OFFSET]);
+ hwif->OUTBSYNC(drive, WIN_SRST, io_ports->command_addr);
ndelay(400);
hwgroup->poll_timeout = jiffies + WAIT_WORSTCASE;
hwgroup->polling = 1;
@@ -1062,7 +1058,7 @@
for (unit = 0; unit < MAX_DRIVES; ++unit)
pre_reset(&hwif->drives[unit]);
- if (hwif->io_ports[IDE_CONTROL_OFFSET] == 0) {
+ if (io_ports->ctl_addr == 0) {
spin_unlock_irqrestore(&ide_lock, flags);
return ide_stopped;
}
@@ -1077,14 +1073,14 @@
* recover from reset very quickly, saving us the first 50ms wait time.
*/
/* set SRST and nIEN */
- hwif->OUTBSYNC(drive, drive->ctl|6, hwif->io_ports[IDE_CONTROL_OFFSET]);
+ hwif->OUTBSYNC(drive, drive->ctl|6, io_ports->ctl_addr);
/* more than enough time */
udelay(10);
if (drive->quirk_list == 2)
ctl = drive->ctl; /* clear SRST and nIEN */
else
ctl = drive->ctl | 2; /* clear SRST, leave nIEN */
- hwif->OUTBSYNC(drive, ctl, hwif->io_ports[IDE_CONTROL_OFFSET]);
+ hwif->OUTBSYNC(drive, ctl, io_ports->ctl_addr);
/* more than enough time */
udelay(10);
hwgroup->poll_timeout = jiffies + WAIT_WORSTCASE;
@@ -1129,7 +1125,7 @@
* about locking issues (2.5 work ?).
*/
mdelay(1);
- stat = hwif->INB(hwif->io_ports[IDE_STATUS_OFFSET]);
+ stat = hwif->INB(hwif->io_ports.status_addr);
if ((stat & BUSY_STAT) == 0)
return 0;
/*