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ide: add ->exec_command method 

Add ->exec_command method for writing ATA Command register
and use it instead of ->OUTBSYNC.

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2008-07-23 19:55:51 +02:00
parent ebb00fb55d
commit c6dfa867bb
8 changed files with 40 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/ide/ide-io.c
View File

@ -437,8 +437,7 @@ static ide_startstop_t ide_atapi_error(ide_drive_t *drive, struct request *rq, u
if (ide_read_status(drive) & (BUSY_STAT | DRQ_STAT))
/* force an abort */
hwif->OUTBSYNC(hwif, WIN_IDLEIMMEDIATE,
hwif->io_ports.command_addr);
hwif->exec_command(hwif, WIN_IDLEIMMEDIATE);
if (rq->errors >= ERROR_MAX) {
ide_kill_rq(drive, rq);

19
drivers/ide/ide-iops.c
View File

@ -103,6 +103,14 @@ void SELECT_MASK(ide_drive_t *drive, int mask)
port_ops->maskproc(drive, mask);
}
static void ide_exec_command(ide_hwif_t *hwif, u8 cmd)
{
if (hwif->host_flags & IDE_HFLAG_MMIO)
writeb(cmd, (void __iomem *)hwif->io_ports.command_addr);
else
outb(cmd, hwif->io_ports.command_addr);
}
static u8 ide_read_sff_dma_status(ide_hwif_t *hwif)
{
if (hwif->host_flags & IDE_HFLAG_MMIO)
@ -331,6 +339,7 @@ static void ata_output_data(ide_drive_t *drive, struct request *rq,
void default_hwif_transport(ide_hwif_t *hwif)
{
hwif->exec_command = ide_exec_command;
hwif->read_sff_dma_status = ide_read_sff_dma_status;
hwif->tf_load = ide_tf_load;
@ -696,7 +705,7 @@ int ide_driveid_update(ide_drive_t *drive)
SELECT_MASK(drive, 1);
ide_set_irq(drive, 0);
msleep(50);
hwif->OUTBSYNC(hwif, WIN_IDENTIFY, hwif->io_ports.command_addr);
hwif->exec_command(hwif, WIN_IDENTIFY);
timeout = jiffies + WAIT_WORSTCASE;
do {
if (time_after(jiffies, timeout)) {
@ -783,7 +792,7 @@ int ide_config_drive_speed(ide_drive_t *drive, u8 speed)
ide_set_irq(drive, 0);
hwif->OUTB(speed, io_ports->nsect_addr);
hwif->OUTB(SETFEATURES_XFER, io_ports->feature_addr);
hwif->OUTBSYNC(hwif, WIN_SETFEATURES, io_ports->command_addr);
hwif->exec_command(hwif, WIN_SETFEATURES);
if (drive->quirk_list == 2)
ide_set_irq(drive, 1);
@ -891,7 +900,7 @@ void ide_execute_command(ide_drive_t *drive, u8 cmd, ide_handler_t *handler,
spin_lock_irqsave(&ide_lock, flags);
__ide_set_handler(drive, handler, timeout, expiry);
hwif->OUTBSYNC(hwif, cmd, hwif->io_ports.command_addr);
hwif->exec_command(hwif, cmd);
/*
* Drive takes 400nS to respond, we must avoid the IRQ being
* serviced before that.
@ -909,7 +918,7 @@ void ide_execute_pkt_cmd(ide_drive_t *drive)
unsigned long flags;
spin_lock_irqsave(&ide_lock, flags);
hwif->OUTBSYNC(hwif, WIN_PACKETCMD, hwif->io_ports.command_addr);
hwif->exec_command(hwif, WIN_PACKETCMD);
ndelay(400);
spin_unlock_irqrestore(&ide_lock, flags);
}
@ -1116,7 +1125,7 @@ static ide_startstop_t do_reset1 (ide_drive_t *drive, int do_not_try_atapi)
pre_reset(drive);
SELECT_DRIVE(drive);
udelay (20);
hwif->OUTBSYNC(hwif, WIN_SRST, io_ports->command_addr);
hwif->exec_command(hwif, WIN_SRST);
ndelay(400);
hwgroup->poll_timeout = jiffies + WAIT_WORSTCASE;
hwgroup->polling = 1;

6
drivers/ide/ide-probe.c
View File

@ -295,7 +295,7 @@ static int actual_try_to_identify (ide_drive_t *drive, u8 cmd)
hwif->OUTB(0, io_ports->feature_addr);
/* ask drive for ID */
hwif->OUTBSYNC(hwif, cmd, hwif->io_ports.command_addr);
hwif->exec_command(hwif, cmd);
timeout = ((cmd == WIN_IDENTIFY) ? WAIT_WORSTCASE : WAIT_PIDENTIFY) / 2;
timeout += jiffies;
@ -482,7 +482,7 @@ static int do_probe (ide_drive_t *drive, u8 cmd)
msleep(50);
SELECT_DRIVE(drive);
msleep(50);
hwif->OUTBSYNC(hwif, WIN_SRST, io_ports->command_addr);
hwif->exec_command(hwif, WIN_SRST);
(void)ide_busy_sleep(hwif);
rc = try_to_identify(drive, cmd);
}
@ -518,7 +518,7 @@ static void enable_nest (ide_drive_t *drive)
printk("%s: enabling %s -- ", hwif->name, drive->id->model);
SELECT_DRIVE(drive);
msleep(50);
hwif->OUTBSYNC(hwif, EXABYTE_ENABLE_NEST, hwif->io_ports.command_addr);
hwif->exec_command(hwif, EXABYTE_ENABLE_NEST);
if (ide_busy_sleep(hwif)) {
printk(KERN_CONT "failed (timeout)\n");

2
drivers/ide/ide-taskfile.c
View File

@ -88,7 +88,7 @@ ide_startstop_t do_rw_taskfile (ide_drive_t *drive, ide_task_t *task)
switch (task->data_phase) {
case TASKFILE_MULTI_OUT:
case TASKFILE_OUT:
hwif->OUTBSYNC(hwif, tf->command, hwif->io_ports.command_addr);
hwif->exec_command(hwif, tf->command);
ndelay(400); /* FIXME */
return pre_task_out_intr(drive, task->rq);
case TASKFILE_MULTI_IN:

9
drivers/ide/pci/scc_pata.c
View File

@ -126,6 +126,14 @@ static u8 scc_ide_inb(unsigned long port)
return (u8)data;
}
static void scc_exec_command(ide_hwif_t *hwif, u8 cmd)
{
out_be32((void *)hwif->io_ports.command_addr, cmd);
eieio();
in_be32((void *)(hwif->dma_base + 0x01c));
eieio();
}
static u8 scc_read_sff_dma_status(ide_hwif_t *hwif)
{
return (u8)in_be32((void *)(hwif->dma_base + 4));
@ -779,6 +787,7 @@ static void __devinit init_mmio_iops_scc(ide_hwif_t *hwif)
ide_set_hwifdata(hwif, ports);
hwif->exec_command = scc_exec_command;
hwif->read_sff_dma_status = scc_read_sff_dma_status;
hwif->tf_load = scc_tf_load;

9
drivers/ide/ppc/pmac.c
View File

@ -495,6 +495,13 @@ static void pmac_outbsync(ide_hwif_t *hwif, u8 value, unsigned long port)
+ IDE_TIMING_CONFIG));
}
static void pmac_exec_command(ide_hwif_t *hwif, u8 cmd)
{
writeb(cmd, (void __iomem *)hwif->io_ports.command_addr);
(void)readl((void __iomem *)(hwif->io_ports.data_addr
+ IDE_TIMING_CONFIG));
}
/*
* Old tuning functions (called on hdparm -p), sets up drive PIO timings
*/
@ -1092,6 +1099,8 @@ static int __devinit pmac_ide_setup_device(pmac_ide_hwif_t *pmif, hw_regs_t *hw)
if (hwif == NULL)
return -ENOENT;
hwif->exec_command = pmac_exec_command;
/* Setup MMIO ops */
default_hwif_mmiops(hwif);
hwif->OUTBSYNC = pmac_outbsync;

3
drivers/scsi/ide-scsi.c
View File

@ -248,8 +248,7 @@ idescsi_atapi_error(ide_drive_t *drive, struct request *rq, u8 stat, u8 err)
if (ide_read_status(drive) & (BUSY_STAT | DRQ_STAT))
/* force an abort */
hwif->OUTBSYNC(hwif, WIN_IDLEIMMEDIATE,
hwif->io_ports.command_addr);
hwif->exec_command(hwif, WIN_IDLEIMMEDIATE);
rq->errors++;

3
include/linux/ide.h
View File

@ -489,7 +489,8 @@ typedef struct hwif_s {
const struct ide_port_ops *port_ops;
const struct ide_dma_ops *dma_ops;
u8 (*read_sff_dma_status)(struct hwif_s *);
void (*exec_command)(struct hwif_s *, u8);
u8 (*read_sff_dma_status)(struct hwif_s *);
void (*tf_load)(ide_drive_t *, struct ide_task_s *);
void (*tf_read)(ide_drive_t *, struct ide_task_s *);