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Commit c6dfa867 authored by Bartlomiej Zolnierkiewicz's avatar Bartlomiej Zolnierkiewicz
Browse files

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: default avatarBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
parent ebb00fb5

drivers/ide/ide-io.c

+1 −2
Original line number Diff line number Diff line
@@ -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);

drivers/ide/ide-iops.c

+14 −5
Original line number Diff line number Diff line
@@ -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;

drivers/ide/ide-probe.c

+3 −3
Original line number Diff line number Diff line
@@ -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");

drivers/ide/ide-taskfile.c

+1 −1
Original line number Diff line number Diff line
@@ -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:

drivers/ide/pci/scc_pata.c

+9 −0
Original line number Diff line number Diff line
@@ -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;