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path: root/drivers/ide/ide-io.c
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Diffstat (limited to 'drivers/ide/ide-io.c')
-rw-r--r--drivers/ide/ide-io.c100
1 files changed, 32 insertions, 68 deletions
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 31e5afadb7e..696525342e9 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -218,7 +218,7 @@ static ide_startstop_t ide_start_power_step(ide_drive_t *drive, struct request *
* we could be smarter and check for current xfer_speed
* in struct drive etc...
*/
- if (drive->hwif->dma_host_set == NULL)
+ if (drive->hwif->dma_ops == NULL)
break;
/*
* TODO: respect ->using_dma setting
@@ -295,54 +295,6 @@ static void ide_complete_pm_request (ide_drive_t *drive, struct request *rq)
spin_unlock_irqrestore(&ide_lock, flags);
}
-void ide_tf_read(ide_drive_t *drive, ide_task_t *task)
-{
- ide_hwif_t *hwif = drive->hwif;
- struct ide_taskfile *tf = &task->tf;
-
- if (task->tf_flags & IDE_TFLAG_IN_DATA) {
- u16 data = hwif->INW(hwif->io_ports[IDE_DATA_OFFSET]);
-
- tf->data = data & 0xff;
- tf->hob_data = (data >> 8) & 0xff;
- }
-
- /* be sure we're looking at the low order bits */
- hwif->OUTB(drive->ctl & ~0x80, hwif->io_ports[IDE_CONTROL_OFFSET]);
-
- if (task->tf_flags & IDE_TFLAG_IN_NSECT)
- tf->nsect = hwif->INB(hwif->io_ports[IDE_NSECTOR_OFFSET]);
- if (task->tf_flags & IDE_TFLAG_IN_LBAL)
- tf->lbal = hwif->INB(hwif->io_ports[IDE_SECTOR_OFFSET]);
- if (task->tf_flags & IDE_TFLAG_IN_LBAM)
- tf->lbam = hwif->INB(hwif->io_ports[IDE_LCYL_OFFSET]);
- if (task->tf_flags & IDE_TFLAG_IN_LBAH)
- tf->lbah = hwif->INB(hwif->io_ports[IDE_HCYL_OFFSET]);
- if (task->tf_flags & IDE_TFLAG_IN_DEVICE)
- tf->device = hwif->INB(hwif->io_ports[IDE_SELECT_OFFSET]);
-
- if (task->tf_flags & IDE_TFLAG_LBA48) {
- hwif->OUTB(drive->ctl | 0x80,
- hwif->io_ports[IDE_CONTROL_OFFSET]);
-
- if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE)
- tf->hob_feature =
- hwif->INB(hwif->io_ports[IDE_FEATURE_OFFSET]);
- if (task->tf_flags & IDE_TFLAG_IN_HOB_NSECT)
- tf->hob_nsect =
- hwif->INB(hwif->io_ports[IDE_NSECTOR_OFFSET]);
- if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAL)
- tf->hob_lbal =
- hwif->INB(hwif->io_ports[IDE_SECTOR_OFFSET]);
- if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAM)
- tf->hob_lbam =
- hwif->INB(hwif->io_ports[IDE_LCYL_OFFSET]);
- if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAH)
- tf->hob_lbah =
- hwif->INB(hwif->io_ports[IDE_HCYL_OFFSET]);
- }
-}
-
/**
* ide_end_drive_cmd - end an explicit drive command
* @drive: command
@@ -378,7 +330,7 @@ void ide_end_drive_cmd (ide_drive_t *drive, u8 stat, u8 err)
tf->error = err;
tf->status = stat;
- ide_tf_read(drive, task);
+ drive->hwif->tf_read(drive, task);
if (task->tf_flags & IDE_TFLAG_DYN)
kfree(task);
@@ -427,7 +379,7 @@ static void try_to_flush_leftover_data (ide_drive_t *drive)
u32 wcount = (i > 16) ? 16 : i;
i -= wcount;
- HWIF(drive)->ata_input_data(drive, buffer, wcount);
+ drive->hwif->input_data(drive, NULL, buffer, wcount * 4);
}
}
@@ -454,7 +406,7 @@ static ide_startstop_t ide_ata_error(ide_drive_t *drive, struct request *rq, u8
if (err == ABRT_ERR) {
if (drive->select.b.lba &&
/* some newer drives don't support WIN_SPECIFY */
- hwif->INB(hwif->io_ports[IDE_COMMAND_OFFSET]) ==
+ hwif->INB(hwif->io_ports.command_addr) ==
WIN_SPECIFY)
return ide_stopped;
} else if ((err & BAD_CRC) == BAD_CRC) {
@@ -507,8 +459,8 @@ 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->OUTB(WIN_IDLEIMMEDIATE,
- hwif->io_ports[IDE_COMMAND_OFFSET]);
+ hwif->OUTBSYNC(drive, WIN_IDLEIMMEDIATE,
+ hwif->io_ports.command_addr);
if (rq->errors >= ERROR_MAX) {
ide_kill_rq(drive, rq);
@@ -721,15 +673,12 @@ static ide_startstop_t do_special (ide_drive_t *drive)
#endif
if (s->b.set_tune) {
ide_hwif_t *hwif = drive->hwif;
+ const struct ide_port_ops *port_ops = hwif->port_ops;
u8 req_pio = drive->tune_req;
s->b.set_tune = 0;
if (set_pio_mode_abuse(drive->hwif, req_pio)) {
-
- if (hwif->set_pio_mode == NULL)
- return ide_stopped;
-
/*
* take ide_lock for drive->[no_]unmask/[no_]io_32bit
*/
@@ -737,10 +686,10 @@ static ide_startstop_t do_special (ide_drive_t *drive)
unsigned long flags;
spin_lock_irqsave(&ide_lock, flags);
- hwif->set_pio_mode(drive, req_pio);
+ port_ops->set_pio_mode(drive, req_pio);
spin_unlock_irqrestore(&ide_lock, flags);
} else
- hwif->set_pio_mode(drive, req_pio);
+ port_ops->set_pio_mode(drive, req_pio);
} else {
int keep_dma = drive->using_dma;
@@ -1241,12 +1190,12 @@ static ide_startstop_t ide_dma_timeout_retry(ide_drive_t *drive, int error)
if (error < 0) {
printk(KERN_WARNING "%s: DMA timeout error\n", drive->name);
- (void)HWIF(drive)->ide_dma_end(drive);
+ (void)hwif->dma_ops->dma_end(drive);
ret = ide_error(drive, "dma timeout error",
ide_read_status(drive));
} else {
printk(KERN_WARNING "%s: DMA timeout retry\n", drive->name);
- hwif->dma_timeout(drive);
+ hwif->dma_ops->dma_timeout(drive);
}
/*
@@ -1358,7 +1307,7 @@ void ide_timer_expiry (unsigned long data)
startstop = handler(drive);
} else if (drive_is_ready(drive)) {
if (drive->waiting_for_dma)
- hwgroup->hwif->dma_lost_irq(drive);
+ hwif->dma_ops->dma_lost_irq(drive);
(void)ide_ack_intr(hwif);
printk(KERN_WARNING "%s: lost interrupt\n", drive->name);
startstop = handler(drive);
@@ -1424,7 +1373,7 @@ static void unexpected_intr (int irq, ide_hwgroup_t *hwgroup)
*/
do {
if (hwif->irq == irq) {
- stat = hwif->INB(hwif->io_ports[IDE_STATUS_OFFSET]);
+ stat = hwif->INB(hwif->io_ports.status_addr);
if (!OK_STAT(stat, READY_STAT, BAD_STAT)) {
/* Try to not flood the console with msgs */
static unsigned long last_msgtime, count;
@@ -1514,7 +1463,7 @@ irqreturn_t ide_intr (int irq, void *dev_id)
* Whack the status register, just in case
* we have a leftover pending IRQ.
*/
- (void) hwif->INB(hwif->io_ports[IDE_STATUS_OFFSET]);
+ (void) hwif->INB(hwif->io_ports.status_addr);
#endif /* CONFIG_BLK_DEV_IDEPCI */
}
spin_unlock_irqrestore(&ide_lock, flags);
@@ -1601,8 +1550,7 @@ irqreturn_t ide_intr (int irq, void *dev_id)
void ide_init_drive_cmd (struct request *rq)
{
- memset(rq, 0, sizeof(*rq));
- rq->ref_count = 1;
+ blk_rq_init(NULL, rq);
}
EXPORT_SYMBOL(ide_init_drive_cmd);
@@ -1688,7 +1636,23 @@ void ide_pktcmd_tf_load(ide_drive_t *drive, u32 tf_flags, u16 bcount, u8 dma)
task.tf.lbam = bcount & 0xff;
task.tf.lbah = (bcount >> 8) & 0xff;
- ide_tf_load(drive, &task);
+ ide_tf_dump(drive->name, &task.tf);
+ drive->hwif->tf_load(drive, &task);
}
EXPORT_SYMBOL_GPL(ide_pktcmd_tf_load);
+
+void ide_pad_transfer(ide_drive_t *drive, int write, int len)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ u8 buf[4] = { 0 };
+
+ while (len > 0) {
+ if (write)
+ hwif->output_data(drive, NULL, buf, min(4, len));
+ else
+ hwif->input_data(drive, NULL, buf, min(4, len));
+ len -= 4;
+ }
+}
+EXPORT_SYMBOL_GPL(ide_pad_transfer);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-16 11:02:56 +0000