From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
To: linux-ide@vger.kernel.org
Subject: [PATCH 10/15] ide: add ide_pktcmd_tf_load() helper
Date: Wed, 31 Oct 2007 00:30:27 +0100 [thread overview]
Message-ID: <200710310030.27565.bzolnier@gmail.com> (raw)
Add ide_pktcmd_tf_load() helper and convert ATAPI device drivers to use it.
There should be no functionality changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
drivers/ide/ide-cd.c | 10 ++--------
drivers/ide/ide-floppy.c | 9 ++-------
drivers/ide/ide-io.c | 16 ++++++++++++++++
drivers/ide/ide-tape.c | 9 +++------
drivers/scsi/ide-scsi.c | 6 +-----
include/linux/ide.h | 2 ++
6 files changed, 26 insertions(+), 26 deletions(-)
Index: b/drivers/ide/ide-cd.c
===================================================================
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -922,14 +922,8 @@ static ide_startstop_t cdrom_start_packe
info->dma = !hwif->dma_setup(drive);
/* Set up the controller registers. */
- if (IDE_CONTROL_REG)
- HWIF(drive)->OUTB(drive->ctl, IDE_CONTROL_REG);
- HWIF(drive)->OUTB(info->dma, IDE_FEATURE_REG);
- HWIF(drive)->OUTB(0, IDE_IREASON_REG);
- HWIF(drive)->OUTB(0, IDE_SECTOR_REG);
-
- HWIF(drive)->OUTB(xferlen & 0xff, IDE_BCOUNTL_REG);
- HWIF(drive)->OUTB(xferlen >> 8 , IDE_BCOUNTH_REG);
+ ide_pktcmd_tf_load(drive, IDE_TFLAG_OUT_NSECT | IDE_TFLAG_OUT_LBAL |
+ IDE_TFLAG_NO_SELECT_MASK, xferlen, info->dma);
if (CDROM_CONFIG_FLAGS (drive)->drq_interrupt) {
/* waiting for CDB interrupt, not DMA yet. */
Index: b/drivers/ide/ide-floppy.c
===================================================================
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -1067,13 +1067,8 @@ static ide_startstop_t idefloppy_issue_p
if (test_bit(PC_DMA_RECOMMENDED, &pc->flags) && drive->using_dma)
dma = !hwif->dma_setup(drive);
- if (IDE_CONTROL_REG)
- HWIF(drive)->OUTB(drive->ctl, IDE_CONTROL_REG);
- /* Use PIO/DMA */
- hwif->OUTB(dma, IDE_FEATURE_REG);
- hwif->OUTB(bcount & 0xff, IDE_BCOUNTL_REG);
- hwif->OUTB((bcount >> 8) & 0xff, IDE_BCOUNTH_REG);
- HWIF(drive)->OUTB(drive->select.all, IDE_SELECT_REG);
+ ide_pktcmd_tf_load(drive, IDE_TFLAG_NO_SELECT_MASK |
+ IDE_TFLAG_OUT_DEVICE, bcount, dma);
if (dma) { /* Begin DMA, if necessary */
set_bit(PC_DMA_IN_PROGRESS, &pc->flags);
Index: b/drivers/ide/ide-io.c
===================================================================
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -1732,3 +1732,19 @@ int ide_do_drive_cmd (ide_drive_t *drive
}
EXPORT_SYMBOL(ide_do_drive_cmd);
+
+void ide_pktcmd_tf_load(ide_drive_t *drive, u32 tf_flags, u16 bcount, u8 dma)
+{
+ ide_task_t task;
+
+ memset(&task, 0, sizeof(task));
+ task.tf_flags = IDE_TFLAG_OUT_LBAH | IDE_TFLAG_OUT_LBAM |
+ IDE_TFLAG_OUT_FEATURE | tf_flags;
+ task.tf.feature = dma; /* Use PIO/DMA */
+ task.tf.lbam = bcount & 0xff;
+ task.tf.lbah = (bcount >> 8) & 0xff;
+
+ ide_tf_load(drive, &task);
+}
+
+EXPORT_SYMBOL_GPL(ide_pktcmd_tf_load);
Index: b/drivers/ide/ide-tape.c
===================================================================
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -2171,12 +2171,9 @@ static ide_startstop_t idetape_issue_pac
if (test_bit(PC_DMA_RECOMMENDED, &pc->flags) && drive->using_dma)
dma_ok = !hwif->dma_setup(drive);
- if (IDE_CONTROL_REG)
- hwif->OUTB(drive->ctl, IDE_CONTROL_REG);
- hwif->OUTB(dma_ok ? 1 : 0, IDE_FEATURE_REG); /* Use PIO/DMA */
- hwif->OUTB(bcount & 0xff, IDE_BCOUNTL_REG);
- hwif->OUTB((bcount >> 8) & 0xff, IDE_BCOUNTH_REG);
- hwif->OUTB(drive->select.all, IDE_SELECT_REG);
+ ide_pktcmd_tf_load(drive, IDE_TFLAG_NO_SELECT_MASK |
+ IDE_TFLAG_OUT_DEVICE, bcount, dma_ok);
+
if (dma_ok) /* Will begin DMA later */
set_bit(PC_DMA_IN_PROGRESS, &pc->flags);
if (test_bit(IDETAPE_DRQ_INTERRUPT, &tape->flags)) {
Index: b/drivers/scsi/ide-scsi.c
===================================================================
--- a/drivers/scsi/ide-scsi.c
+++ b/drivers/scsi/ide-scsi.c
@@ -595,12 +595,8 @@ static ide_startstop_t idescsi_issue_pc
}
SELECT_DRIVE(drive);
- if (IDE_CONTROL_REG)
- HWIF(drive)->OUTB(drive->ctl, IDE_CONTROL_REG);
- hwif->OUTB(dma, IDE_FEATURE_REG);
- hwif->OUTB(bcount & 0xff, IDE_BCOUNTL_REG);
- hwif->OUTB((bcount >> 8) & 0xff, IDE_BCOUNTH_REG);
+ ide_pktcmd_tf_load(drive, IDE_TFLAG_NO_SELECT_MASK, bcount, dma);
if (dma)
set_bit(PC_DMA_OK, &pc->flags);
Index: b/include/linux/ide.h
===================================================================
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -975,6 +975,8 @@ extern void QUIRK_LIST(ide_drive_t *);
extern int drive_is_ready(ide_drive_t *);
+void ide_pktcmd_tf_load(ide_drive_t *, u32, u16, u8);
+
/*
* taskfile io for disks for now...and builds request from ide_ioctl
*/
next reply other threads:[~2007-10-30 23:50 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-30 23:30 Bartlomiej Zolnierkiewicz [this message]
2007-11-09 18:07 ` [PATCH 10/15] ide: add ide_pktcmd_tf_load() helper Sergei Shtylyov
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