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ide: use ata_tf_protocols enums 

* Add IDE_TFLAG_MULTI_PIO taskfile flag and set it for commands
  using multi-PIO protocol.

* Use ata_tf_protocols enums instead of TASKFILE_* defines to
  denote command's protocol and then rename ->data_phase field
  to ->protocol.

* Remove no longer needed <linux/hdreg.h> includes.

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 2009-03-27 12:46:39 +01:00
parent 04d09b0e62
commit 0dfb991c69
8 changed files with 58 additions and 89 deletions
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34
drivers/ide/ide-disk.c
View File

@ -28,7 +28,6 @@
#include <linux/mutex.h>
#include <linux/leds.h>
#include <linux/ide.h>
#include <linux/hdreg.h>
#include <asm/byteorder.h>
#include <asm/irq.h>
@ -53,15 +52,6 @@ static const u8 ide_rw_cmds[] = {
ATA_CMD_WRITE_EXT,
};
static const u8 ide_data_phases[] = {
TASKFILE_MULTI_IN,
TASKFILE_MULTI_OUT,
TASKFILE_IN,
TASKFILE_OUT,
TASKFILE_IN_DMA,
TASKFILE_OUT_DMA,
};
static void ide_tf_set_cmd(ide_drive_t *drive, struct ide_cmd *cmd, u8 dma)
{
u8 index, lba48, write;
@ -69,17 +59,19 @@ static void ide_tf_set_cmd(ide_drive_t *drive, struct ide_cmd *cmd, u8 dma)
lba48 = (cmd->tf_flags & IDE_TFLAG_LBA48) ? 2 : 0;
write = (cmd->tf_flags & IDE_TFLAG_WRITE) ? 1 : 0;
if (dma)
if (dma) {
cmd->protocol = ATA_PROT_DMA;
index = 8;
else
index = drive->mult_count ? 0 : 4;
} else {
cmd->protocol = ATA_PROT_PIO;
if (drive->mult_count) {
cmd->tf_flags |= IDE_TFLAG_MULTI_PIO;
index = 0;
} else
index = 4;
}
cmd->tf.command = ide_rw_cmds[index + lba48 + write];
if (dma)
index = 8; /* fixup index */
cmd->data_phase = ide_data_phases[index / 2 + write];
}
/*
@ -401,9 +393,9 @@ static void idedisk_prepare_flush(struct request_queue *q, struct request *rq)
cmd->tf.command = ATA_CMD_FLUSH_EXT;
else
cmd->tf.command = ATA_CMD_FLUSH;
cmd->tf_flags = IDE_TFLAG_OUT_TF | IDE_TFLAG_OUT_DEVICE |
IDE_TFLAG_DYN;
cmd->data_phase = TASKFILE_NO_DATA;
cmd->tf_flags = IDE_TFLAG_OUT_TF | IDE_TFLAG_OUT_DEVICE |
IDE_TFLAG_DYN;
cmd->protocol = ATA_PROT_NODATA;
rq->cmd_type = REQ_TYPE_ATA_TASKFILE;
rq->cmd_flags |= REQ_SOFTBARRIER;

5
drivers/ide/ide-disk_proc.c
View File

@ -1,6 +1,5 @@
#include <linux/kernel.h>
#include <linux/ide.h>
#include <linux/hdreg.h>
#include "ide-disk.h"
@ -30,8 +29,8 @@ static int get_smart_data(ide_drive_t *drive, u8 *buf, u8 sub_cmd)
tf->lbam = ATA_SMART_LBAM_PASS;
tf->lbah = ATA_SMART_LBAH_PASS;
tf->command = ATA_CMD_SMART;
cmd.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
cmd.data_phase = TASKFILE_IN;
cmd.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
cmd.protocol = ATA_PROT_PIO;
return ide_raw_taskfile(drive, &cmd, buf, 1);
}

11
drivers/ide/ide-io.c
View File

@ -40,7 +40,6 @@
#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/ide.h>
#include <linux/hdreg.h>
#include <linux/completion.h>
#include <linux/reboot.h>
#include <linux/cdrom.h>
@ -220,7 +219,7 @@ static ide_startstop_t ide_disk_special(ide_drive_t *drive)
struct ide_cmd cmd;
memset(&cmd, 0, sizeof(cmd));
cmd.data_phase = TASKFILE_NO_DATA;
cmd.protocol = ATA_PROT_NODATA;
if (s->b.set_geometry) {
s->b.set_geometry = 0;
@ -314,15 +313,9 @@ static ide_startstop_t execute_drive_cmd (ide_drive_t *drive,
struct ide_cmd *cmd = rq->special;
if (cmd) {
switch (cmd->data_phase) {
case TASKFILE_MULTI_OUT:
case TASKFILE_OUT:
case TASKFILE_MULTI_IN:
case TASKFILE_IN:
if (cmd->protocol == ATA_PROT_PIO) {
ide_init_sg_cmd(cmd, rq->nr_sectors);
ide_map_sg(drive, rq);
default:
break;
}
return do_rw_taskfile(drive, cmd);

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

@ -148,7 +148,7 @@ static int ide_cmd_ioctl(ide_drive_t *drive, unsigned long arg)
IDE_TFLAG_IN_NSECT;
}
tf->command = args[0];
cmd.data_phase = args[3] ? TASKFILE_IN : TASKFILE_NO_DATA;
cmd.protocol = args[3] ? ATA_PROT_PIO : ATA_PROT_NODATA;
if (args[3]) {
cmd.tf_flags |= IDE_TFLAG_IO_16BIT;

4
drivers/ide/ide-park.c
View File

@ -1,6 +1,5 @@
#include <linux/kernel.h>
#include <linux/ide.h>
#include <linux/hdreg.h>
#include <linux/jiffies.h>
#include <linux/blkdev.h>
@ -80,8 +79,9 @@ ide_startstop_t ide_do_park_unpark(ide_drive_t *drive, struct request *rq)
tf->command = ATA_CMD_CHK_POWER;
cmd.tf_flags |= IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
cmd.protocol = ATA_PROT_NODATA;
cmd.rq = rq;
cmd.data_phase = TASKFILE_NO_DATA;
return do_rw_taskfile(drive, &cmd);
}

5
drivers/ide/ide-pm.c
View File

@ -1,6 +1,5 @@
#include <linux/kernel.h>
#include <linux/ide.h>
#include <linux/hdreg.h>
int generic_ide_suspend(struct device *dev, pm_message_t mesg)
{
@ -164,8 +163,8 @@ ide_startstop_t ide_start_power_step(ide_drive_t *drive, struct request *rq)
return ide_stopped;
out_do_tf:
cmd->tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
cmd->data_phase = TASKFILE_NO_DATA;
cmd->tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
cmd->protocol = ATA_PROT_NODATA;
return do_rw_taskfile(drive, cmd);
}

83
drivers/ide/ide-taskfile.c
View File

@ -47,8 +47,8 @@ int taskfile_lib_get_identify (ide_drive_t *drive, u8 *buf)
cmd.tf.command = ATA_CMD_ID_ATA;
else
cmd.tf.command = ATA_CMD_ID_ATAPI;
cmd.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
cmd.data_phase = TASKFILE_IN;
cmd.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
cmd.protocol = ATA_PROT_PIO;
return ide_raw_taskfile(drive, &cmd, buf, 1);
}
@ -66,13 +66,11 @@ ide_startstop_t do_rw_taskfile(ide_drive_t *drive, struct ide_cmd *orig_cmd)
const struct ide_tp_ops *tp_ops = hwif->tp_ops;
const struct ide_dma_ops *dma_ops = hwif->dma_ops;
if (orig_cmd->data_phase == TASKFILE_MULTI_IN ||
orig_cmd->data_phase == TASKFILE_MULTI_OUT) {
if (!drive->mult_count) {
printk(KERN_ERR "%s: multimode not set!\n",
drive->name);
return ide_stopped;
}
if (orig_cmd->protocol == ATA_PROT_PIO &&
(orig_cmd->tf_flags & IDE_TFLAG_MULTI_PIO) &&
drive->mult_count == 0) {
printk(KERN_ERR "%s: multimode not set!\n", drive->name);
return ide_stopped;
}
if (orig_cmd->ftf_flags & IDE_FTFLAG_FLAGGED)
@ -87,17 +85,16 @@ ide_startstop_t do_rw_taskfile(ide_drive_t *drive, struct ide_cmd *orig_cmd)
tp_ops->tf_load(drive, cmd);
}
switch (cmd->data_phase) {
case TASKFILE_MULTI_OUT:
case TASKFILE_OUT:
tp_ops->exec_command(hwif, tf->command);
ndelay(400); /* FIXME */
return pre_task_out_intr(drive, cmd);
case TASKFILE_MULTI_IN:
case TASKFILE_IN:
switch (cmd->protocol) {
case ATA_PROT_PIO:
if (cmd->tf_flags & IDE_TFLAG_WRITE) {
tp_ops->exec_command(hwif, tf->command);
ndelay(400); /* FIXME */
return pre_task_out_intr(drive, cmd);
}
handler = task_in_intr;
/* fall-through */
case TASKFILE_NO_DATA:
case ATA_PROT_NODATA:
if (handler == NULL)
handler = task_no_data_intr;
ide_execute_command(drive, tf->command, handler,
@ -115,9 +112,6 @@ ide_startstop_t do_rw_taskfile(ide_drive_t *drive, struct ide_cmd *orig_cmd)
}
EXPORT_SYMBOL_GPL(do_rw_taskfile);
/*
* Handler for commands without a data phase
*/
static ide_startstop_t task_no_data_intr(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
@ -278,15 +272,10 @@ static void ide_pio_datablock(ide_drive_t *drive, struct ide_cmd *cmd,
touch_softlockup_watchdog();
switch (cmd->data_phase) {
case TASKFILE_MULTI_IN:
case TASKFILE_MULTI_OUT:
if (cmd->tf_flags & IDE_TFLAG_MULTI_PIO)
ide_pio_multi(drive, cmd, write);
break;
default:
else
ide_pio_sector(drive, cmd, write);
break;
}
drive->io_32bit = saved_io_32bit;
}
@ -297,22 +286,12 @@ static ide_startstop_t task_error(ide_drive_t *drive, struct ide_cmd *cmd,
if (cmd->tf_flags & IDE_TFLAG_FS) {
int sectors = cmd->nsect - cmd->nleft;
switch (cmd->data_phase) {
case TASKFILE_IN:
if (cmd->nleft)
break;
/* fall through */
case TASKFILE_OUT:
sectors--;
break;
case TASKFILE_MULTI_IN:
if (cmd->nleft)
break;
/* fall through */
case TASKFILE_MULTI_OUT:
sectors -= drive->mult_count;
default:
break;
if (cmd->protocol == ATA_PROT_PIO &&
((cmd->tf_flags & IDE_TFLAG_WRITE) || cmd->nleft == 0)) {
if (cmd->tf_flags & IDE_TFLAG_MULTI_PIO)
sectors -= drive->mult_count;
else
sectors--;
}
if (sectors > 0)
@ -425,7 +404,7 @@ static ide_startstop_t pre_task_out_intr(ide_drive_t *drive,
drive->bad_wstat, WAIT_DRQ)) {
printk(KERN_ERR "%s: no DRQ after issuing %sWRITE%s\n",
drive->name,
cmd->data_phase == TASKFILE_MULTI_OUT ? "MULT" : "",
(cmd->tf_flags & IDE_TFLAG_MULTI_PIO) ? "MULT" : "",
(drive->dev_flags & IDE_DFLAG_LBA48) ? "_EXT" : "");
return startstop;
}
@ -474,7 +453,7 @@ EXPORT_SYMBOL(ide_raw_taskfile);
int ide_no_data_taskfile(ide_drive_t *drive, struct ide_cmd *cmd)
{
cmd->data_phase = TASKFILE_NO_DATA;
cmd->protocol = ATA_PROT_NODATA;
return ide_raw_taskfile(drive, cmd, NULL, 0);
}
@ -545,7 +524,6 @@ int ide_taskfile_ioctl(ide_drive_t *drive, unsigned long arg)
memcpy(&cmd.tf_array[6], req_task->io_ports,
HDIO_DRIVE_TASK_HDR_SIZE);
cmd.data_phase = req_task->data_phase;
cmd.tf_flags = IDE_TFLAG_IO_16BIT | IDE_TFLAG_DEVICE |
IDE_TFLAG_IN_TF;
@ -590,10 +568,12 @@ int ide_taskfile_ioctl(ide_drive_t *drive, unsigned long arg)
/* fixup data phase if needed */
if (req_task->data_phase == TASKFILE_IN_DMAQ ||
req_task->data_phase == TASKFILE_IN_DMA)
cmd.data_phase = TASKFILE_OUT_DMA;
cmd.tf_flags |= IDE_TFLAG_WRITE;
}
switch (cmd.data_phase) {
cmd.protocol = ATA_PROT_DMA;
switch (req_task->data_phase) {
case TASKFILE_MULTI_OUT:
if (!drive->mult_count) {
/* (hs): give up if multcount is not set */
@ -603,8 +583,10 @@ int ide_taskfile_ioctl(ide_drive_t *drive, unsigned long arg)
err = -EPERM;
goto abort;
}
cmd.tf_flags |= IDE_TFLAG_MULTI_PIO;
/* fall through */
case TASKFILE_OUT:
cmd.protocol = ATA_PROT_PIO;
/* fall through */
case TASKFILE_OUT_DMAQ:
case TASKFILE_OUT_DMA:
@ -621,8 +603,10 @@ int ide_taskfile_ioctl(ide_drive_t *drive, unsigned long arg)
err = -EPERM;
goto abort;
}
cmd.tf_flags |= IDE_TFLAG_MULTI_PIO;
/* fall through */
case TASKFILE_IN:
cmd.protocol = ATA_PROT_PIO;
/* fall through */
case TASKFILE_IN_DMAQ:
case TASKFILE_IN_DMA:
@ -630,6 +614,7 @@ int ide_taskfile_ioctl(ide_drive_t *drive, unsigned long arg)
data_buf = inbuf;
break;
case TASKFILE_NO_DATA:
cmd.protocol = ATA_PROT_NODATA;
break;
default:
err = -EFAULT;

3
include/linux/ide.h
View File

@ -298,6 +298,7 @@ enum {
/* struct ide_cmd was allocated using kmalloc() */
IDE_TFLAG_DYN = (1 << 27),
IDE_TFLAG_FS = (1 << 28),
IDE_TFLAG_MULTI_PIO = (1 << 29),
};
enum {
@ -343,7 +344,7 @@ struct ide_cmd {
};
u8 ftf_flags; /* for TASKFILE ioctl */
u32 tf_flags;
int data_phase;
int protocol;
int sg_nents; /* number of sg entries */
int orig_sg_nents;