[PATCH 3/4] ide: add struct ide_tp_ops

From: Bartlomiej Zolnierkiewicz
Date: Sun Jun 22 2008 - 15:34:58 EST

* Add struct ide_tp_ops for transport methods.

* Add 'const struct ide_tp_ops *tp_ops' to struct ide_port_info
and ide_hwif_t.

* Set the default hwif->tp_ops in ide_init_port_data().

* Set host driver specific hwif->tp_ops in ide_init_port().

* Export ide_exec_command(), ide_read_status(), ide_read_altstatus(),
ide_read_sff_dma_status(), ide_set_irq(), ide_tf_{load,read}()
and ata_{in,out}put_data().

* Convert host drivers and core code to use struct ide_tp_ops.

* Remove no longer needed default_hwif_transport().

* Cleanup ide_hwif_t from methods that are now in struct ide_tp_ops.

While at it:

* Use struct ide_port_info in falconide.c and q40ide.c.

* Rename ata_{in,out}put_data() to ide_{in,out}put_data().

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx>
---
drivers/ide/arm/icside.c | 2
drivers/ide/h8300/ide-h8300.c | 26 +++++---
drivers/ide/ide-atapi.c | 13 ++--
drivers/ide/ide-cd.c | 12 ++--
drivers/ide/ide-dma.c | 12 ++--
drivers/ide/ide-floppy.c | 8 +-
drivers/ide/ide-io.c | 32 +++++-----
drivers/ide/ide-iops.c | 122 ++++++++++++++++++++++-------------------
drivers/ide/ide-lib.c | 2
drivers/ide/ide-probe.c | 53 ++++++++++-------
drivers/ide/ide-tape.c | 8 +-
drivers/ide/ide-taskfile.c | 29 +++++----
drivers/ide/ide.c | 2
drivers/ide/legacy/falconide.c | 27 +++++++--
drivers/ide/legacy/q40ide.c | 27 +++++++--
drivers/ide/mips/au1xxx-ide.c | 29 ++++++---
drivers/ide/pci/ns87415.c | 48 +++++++++-------
drivers/ide/pci/scc_pata.c | 29 +++++----
drivers/ide/pci/sgiioc4.c | 18 +++++-
drivers/ide/ppc/pmac.c | 21 +++++--
drivers/ide/setup-pci.c | 2
drivers/scsi/ide-scsi.c | 7 +-
include/linux/ide.h | 52 +++++++++++------
23 files changed, 357 insertions(+), 224 deletions(-)

Index: b/drivers/ide/arm/icside.c
===================================================================
--- a/drivers/ide/arm/icside.c
+++ b/drivers/ide/arm/icside.c
@@ -382,7 +382,7 @@ static void icside_dma_timeout(ide_drive
if (icside_dma_test_irq(drive))
return;

- ide_dump_status(drive, "DMA timeout", hwif->read_status(hwif));
+ ide_dump_status(drive, "DMA timeout", hwif->tp_ops->read_status(hwif));

icside_dma_end(drive);
}
Index: b/drivers/ide/h8300/ide-h8300.c
===================================================================
--- a/drivers/ide/h8300/ide-h8300.c
+++ b/drivers/ide/h8300/ide-h8300.c
@@ -155,6 +155,21 @@ static void h8300_output_data(ide_drive_
mm_outsw(drive->hwif->io_ports.data_addr, buf, (len + 1) / 2);
}

+static const struct ide_tp_ops h8300_tp_ops = {
+ .exec_command = ide_exec_command,
+ .read_status = ide_read_status,
+ .read_altstatus = ide_read_altstatus,
+ .read_sff_dma_status = ide_read_sff_dma_status,
+
+ .set_irq = ide_set_irq,
+
+ .tf_load = h8300_tf_load,
+ .tf_read = h8300_tf_read,
+
+ .input_data = h8300_input_data,
+ .output_data = h8300_output_data,
+};
+
#define H8300_IDE_GAP (2)

static inline void hw_setup(hw_regs_t *hw)
@@ -169,16 +184,8 @@ static inline void hw_setup(hw_regs_t *h
hw->chipset = ide_generic;
}

-static inline void hwif_setup(ide_hwif_t *hwif)
-{
- hwif->tf_load = h8300_tf_load;
- hwif->tf_read = h8300_tf_read;
-
- hwif->input_data = h8300_input_data;
- hwif->output_data = h8300_output_data;
-}
-
static const struct ide_port_info h8300_port_info = {
+ .tp_ops = &h8300_tp_ops,
.host_flags = IDE_HFLAG_NO_IO_32BIT | IDE_HFLAG_NO_DMA,
};

@@ -205,7 +212,6 @@ static int __init h8300_ide_init(void)
return -ENOENT;

index = hwif->index;
- hwif_setup(hwif);

idx[0] = index;

Index: b/drivers/ide/ide-atapi.c
===================================================================
--- a/drivers/ide/ide-atapi.c
+++ b/drivers/ide/ide-atapi.c
@@ -22,6 +22,7 @@ ide_startstop_t ide_pc_intr(ide_drive_t
void (*io_buffers)(ide_drive_t *, struct ide_atapi_pc *, unsigned, int))
{
ide_hwif_t *hwif = drive->hwif;
+ const struct ide_tp_ops *tp_ops = hwif->tp_ops;
xfer_func_t *xferfunc;
unsigned int temp;
u16 bcount;
@@ -35,7 +36,7 @@ ide_startstop_t ide_pc_intr(ide_drive_t
}

/* Clear the interrupt */
- stat = hwif->read_status(hwif);
+ stat = tp_ops->read_status(hwif);

if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) {
if (hwif->dma_ops->dma_end(drive) ||
@@ -140,7 +141,7 @@ cmd_finished:
if (pc->sg)
io_buffers(drive, pc, temp, 0);
else
- hwif->input_data(drive, NULL,
+ tp_ops->input_data(drive, NULL,
pc->cur_pos, temp);
printk(KERN_ERR "%s: transferred %d of "
"%d bytes\n",
@@ -157,9 +158,9 @@ cmd_finished:
debug_log("The device wants to send us more data than "
"expected - allowing transfer\n");
}
- xferfunc = hwif->input_data;
+ xferfunc = tp_ops->input_data;
} else
- xferfunc = hwif->output_data;
+ xferfunc = tp_ops->output_data;

if ((drive->media == ide_floppy && !scsi && !pc->buf) ||
(drive->media == ide_tape && !scsi && pc->bh) ||
@@ -188,7 +189,7 @@ static u8 ide_read_ireason(ide_drive_t *
memset(&task, 0, sizeof(task));
task.tf_flags = IDE_TFLAG_IN_NSECT;

- drive->hwif->tf_read(drive, &task);
+ drive->hwif->tp_ops->tf_read(drive, &task);

return task.tf.nsect & 3;
}
@@ -249,7 +250,7 @@ ide_startstop_t ide_transfer_pc(ide_driv

/* Send the actual packet */
if ((pc->flags & PC_FLAG_ZIP_DRIVE) == 0)
- hwif->output_data(drive, NULL, pc->c, 12);
+ hwif->tp_ops->output_data(drive, NULL, pc->c, 12);

return ide_started;
}
Index: b/drivers/ide/ide-cd.c
===================================================================
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -285,7 +285,7 @@ static int cdrom_decode_status(ide_drive
int stat, err, sense_key;

/* check for errors */
- stat = hwif->read_status(hwif);
+ stat = hwif->tp_ops->read_status(hwif);

if (stat_ret)
*stat_ret = stat;
@@ -590,7 +590,7 @@ static ide_startstop_t cdrom_transfer_pa
cmd_len = ATAPI_MIN_CDB_BYTES;

/* send the command to the device */
- hwif->output_data(drive, NULL, rq->cmd, cmd_len);
+ hwif->tp_ops->output_data(drive, NULL, rq->cmd, cmd_len);

/* start the DMA if need be */
if (info->dma)
@@ -627,7 +627,7 @@ static int ide_cd_check_ireason(ide_driv
* Some drives (ASUS) seem to tell us that status info is
* available. Just get it and ignore.
*/
- (void)hwif->read_status(hwif);
+ (void)hwif->tp_ops->read_status(hwif);
return 0;
} else {
/* drive wants a command packet, or invalid ireason... */
@@ -990,10 +990,10 @@ static ide_startstop_t cdrom_newpc_intr(

if (ireason == 0) {
write = 1;
- xferfunc = hwif->output_data;
+ xferfunc = hwif->tp_ops->output_data;
} else {
write = 0;
- xferfunc = hwif->input_data;
+ xferfunc = hwif->tp_ops->input_data;
}

/* transfer data */
@@ -1189,7 +1189,7 @@ static ide_startstop_t ide_cd_do_request
if (info->cd_flags & IDE_CD_FLAG_SEEKING) {
ide_hwif_t *hwif = drive->hwif;
unsigned long elapsed = jiffies - info->start_seek;
- int stat = hwif->read_status(hwif);
+ int stat = hwif->tp_ops->read_status(hwif);

if ((stat & SEEK_STAT) != SEEK_STAT) {
if (elapsed < IDECD_SEEK_TIMEOUT) {
Index: b/drivers/ide/ide-dma.c
===================================================================
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -104,7 +104,7 @@ ide_startstop_t ide_dma_intr (ide_drive_
u8 stat = 0, dma_stat = 0;

dma_stat = hwif->dma_ops->dma_end(drive);
- stat = hwif->read_status(hwif);
+ stat = hwif->tp_ops->read_status(hwif);

if (OK_STAT(stat,DRIVE_READY,drive->bad_wstat|DRQ_STAT)) {
if (!dma_stat) {
@@ -335,7 +335,7 @@ static int config_drive_for_dma (ide_dri
static int dma_timer_expiry (ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
- u8 dma_stat = hwif->read_sff_dma_status(hwif);
+ u8 dma_stat = hwif->tp_ops->read_sff_dma_status(hwif);

printk(KERN_WARNING "%s: dma_timer_expiry: dma status == 0x%02x\n",
drive->name, dma_stat);
@@ -370,7 +370,7 @@ void ide_dma_host_set(ide_drive_t *drive
{
ide_hwif_t *hwif = HWIF(drive);
u8 unit = (drive->select.b.unit & 0x01);
- u8 dma_stat = hwif->read_sff_dma_status(hwif);
+ u8 dma_stat = hwif->tp_ops->read_sff_dma_status(hwif);

if (on)
dma_stat |= (1 << (5 + unit));
@@ -482,7 +482,7 @@ int ide_dma_setup(ide_drive_t *drive)
outb(reading, hwif->dma_base + ATA_DMA_CMD);

/* read DMA status for INTR & ERROR flags */
- dma_stat = hwif->read_sff_dma_status(hwif);
+ dma_stat = hwif->tp_ops->read_sff_dma_status(hwif);

/* clear INTR & ERROR flags */
if (mmio)
@@ -551,7 +551,7 @@ int __ide_dma_end (ide_drive_t *drive)
}

/* get DMA status */
- dma_stat = hwif->read_sff_dma_status(hwif);
+ dma_stat = hwif->tp_ops->read_sff_dma_status(hwif);

if (mmio)
/* clear the INTR & ERROR bits */
@@ -574,7 +574,7 @@ EXPORT_SYMBOL(__ide_dma_end);
int ide_dma_test_irq(ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
- u8 dma_stat = hwif->read_sff_dma_status(hwif);
+ u8 dma_stat = hwif->tp_ops->read_sff_dma_status(hwif);

/* return 1 if INTR asserted */
if ((dma_stat & 4) == 4)
Index: b/drivers/ide/ide-floppy.c
===================================================================
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -247,9 +247,9 @@ static void ide_floppy_io_buffers(ide_dr

data = bvec_kmap_irq(bvec, &flags);
if (direction)
- hwif->output_data(drive, NULL, data, count);
+ hwif->tp_ops->output_data(drive, NULL, data, count);
else
- hwif->input_data(drive, NULL, data, count);
+ hwif->tp_ops->input_data(drive, NULL, data, count);
bvec_kunmap_irq(data, &flags);

bcount -= count;
@@ -402,7 +402,7 @@ static int idefloppy_transfer_pc(ide_dri
idefloppy_floppy_t *floppy = drive->driver_data;

/* Send the actual packet */
- drive->hwif->output_data(drive, NULL, floppy->pc->c, 12);
+ drive->hwif->tp_ops->output_data(drive, NULL, floppy->pc->c, 12);

/* Timeout for the packet command */
return IDEFLOPPY_WAIT_CMD;
@@ -954,7 +954,7 @@ static int idefloppy_get_format_progress
u8 stat;

local_irq_save(flags);
- stat = hwif->read_status(hwif);
+ stat = hwif->tp_ops->read_status(hwif);
local_irq_restore(flags);

progress_indication = ((stat & SEEK_STAT) == 0) ? 0 : 0x10000;
Index: b/drivers/ide/ide-io.c
===================================================================
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -330,7 +330,7 @@ void ide_end_drive_cmd (ide_drive_t *dri
tf->error = err;
tf->status = stat;

- drive->hwif->tf_read(drive, task);
+ drive->hwif->tp_ops->tf_read(drive, task);

if (task->tf_flags & IDE_TFLAG_DYN)
kfree(task);
@@ -381,7 +381,7 @@ static ide_startstop_t ide_ata_error(ide
if (err == ABRT_ERR) {
if (drive->select.b.lba &&
/* some newer drives don't support WIN_SPECIFY */
- hwif->read_status(hwif) == WIN_SPECIFY)
+ hwif->tp_ops->read_status(hwif) == WIN_SPECIFY)
return ide_stopped;
} else if ((err & BAD_CRC) == BAD_CRC) {
/* UDMA crc error, just retry the operation */
@@ -407,7 +407,7 @@ static ide_startstop_t ide_ata_error(ide
return ide_stopped;
}

- if (hwif->read_status(hwif) & (BUSY_STAT | DRQ_STAT))
+ if (hwif->tp_ops->read_status(hwif) & (BUSY_STAT | DRQ_STAT))
rq->errors |= ERROR_RESET;

if ((rq->errors & ERROR_RESET) == ERROR_RESET) {
@@ -434,9 +434,9 @@ static ide_startstop_t ide_atapi_error(i
/* add decoding error stuff */
}

- if (hwif->read_status(hwif) & (BUSY_STAT | DRQ_STAT))
+ if (hwif->tp_ops->read_status(hwif) & (BUSY_STAT | DRQ_STAT))
/* force an abort */
- hwif->exec_command(hwif, WIN_IDLEIMMEDIATE);
+ hwif->tp_ops->exec_command(hwif, WIN_IDLEIMMEDIATE);

if (rq->errors >= ERROR_MAX) {
ide_kill_rq(drive, rq);
@@ -759,7 +759,7 @@ static ide_startstop_t execute_drive_cmd
#ifdef DEBUG
printk("%s: DRIVE_CMD (null)\n", drive->name);
#endif
- ide_end_drive_cmd(drive, hwif->read_status(hwif),
+ ide_end_drive_cmd(drive, hwif->tp_ops->read_status(hwif),
ide_read_error(drive));

return ide_stopped;
@@ -792,7 +792,7 @@ static void ide_check_pm_state(ide_drive
if (rc)
printk(KERN_WARNING "%s: bus not ready on wakeup\n", drive->name);
SELECT_DRIVE(drive);
- hwif->set_irq(hwif, 1);
+ hwif->tp_ops->set_irq(hwif, 1);
rc = ide_wait_not_busy(hwif, 100000);
if (rc)
printk(KERN_WARNING "%s: drive not ready on wakeup\n", drive->name);
@@ -1070,7 +1070,7 @@ static void ide_do_request (ide_hwgroup_
* quirk_list may not like intr setups/cleanups
*/
if (drive->quirk_list != 1)
- hwif->set_irq(hwif, 0);
+ hwif->tp_ops->set_irq(hwif, 0);
}
hwgroup->hwif = hwif;
hwgroup->drive = drive;
@@ -1170,7 +1170,7 @@ static ide_startstop_t ide_dma_timeout_r
printk(KERN_WARNING "%s: DMA timeout error\n", drive->name);
(void)hwif->dma_ops->dma_end(drive);
ret = ide_error(drive, "dma timeout error",
- hwif->read_status(hwif));
+ hwif->tp_ops->read_status(hwif));
} else {
printk(KERN_WARNING "%s: DMA timeout retry\n", drive->name);
hwif->dma_ops->dma_timeout(drive);
@@ -1295,7 +1295,7 @@ void ide_timer_expiry (unsigned long dat
} else
startstop =
ide_error(drive, "irq timeout",
- hwif->read_status(hwif));
+ hwif->tp_ops->read_status(hwif));
}
drive->service_time = jiffies - drive->service_start;
spin_lock_irq(&ide_lock);
@@ -1351,7 +1351,7 @@ static void unexpected_intr (int irq, id
*/
do {
if (hwif->irq == irq) {
- stat = hwif->read_status(hwif);
+ stat = hwif->tp_ops->read_status(hwif);

if (!OK_STAT(stat, READY_STAT, BAD_STAT)) {
/* Try to not flood the console with msgs */
@@ -1442,7 +1442,7 @@ irqreturn_t ide_intr (int irq, void *dev
* Whack the status register, just in case
* we have a leftover pending IRQ.
*/
- (void)hwif->read_status(hwif);
+ (void)hwif->tp_ops->read_status(hwif);
#endif /* CONFIG_BLK_DEV_IDEPCI */
}
spin_unlock_irqrestore(&ide_lock, flags);
@@ -1559,9 +1559,9 @@ void ide_pktcmd_tf_load(ide_drive_t *dri
task.tf.lbah = (bcount >> 8) & 0xff;

ide_tf_dump(drive->name, &task.tf);
- hwif->set_irq(hwif, 1);
+ hwif->tp_ops->set_irq(hwif, 1);
SELECT_MASK(drive, 0);
- hwif->tf_load(drive, &task);
+ hwif->tp_ops->tf_load(drive, &task);
}

EXPORT_SYMBOL_GPL(ide_pktcmd_tf_load);
@@ -1573,9 +1573,9 @@ void ide_pad_transfer(ide_drive_t *drive

while (len > 0) {
if (write)
- hwif->output_data(drive, NULL, buf, min(4, len));
+ hwif->tp_ops->output_data(drive, NULL, buf, min(4, len));
else
- hwif->input_data(drive, NULL, buf, min(4, len));
+ hwif->tp_ops->input_data(drive, NULL, buf, min(4, len));
len -= 4;
}
}
Index: b/drivers/ide/ide-iops.c
===================================================================
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -68,7 +68,7 @@ void SELECT_DRIVE (ide_drive_t *drive)
memset(&task, 0, sizeof(task));
task.tf_flags = IDE_TFLAG_OUT_DEVICE;

- drive->hwif->tf_load(drive, &task);
+ drive->hwif->tp_ops->tf_load(drive, &task);
}

void SELECT_MASK(ide_drive_t *drive, int mask)
@@ -79,39 +79,43 @@ void SELECT_MASK(ide_drive_t *drive, int
port_ops->maskproc(drive, mask);
}

-static void ide_exec_command(ide_hwif_t *hwif, u8 cmd)
+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);
}
+EXPORT_SYMBOL_GPL(ide_exec_command);

-static u8 ide_read_status(ide_hwif_t *hwif)
+u8 ide_read_status(ide_hwif_t *hwif)
{
if (hwif->host_flags & IDE_HFLAG_MMIO)
return readb((void __iomem *)hwif->io_ports.status_addr);
else
return inb(hwif->io_ports.status_addr);
}
+EXPORT_SYMBOL_GPL(ide_read_status);

-static u8 ide_read_altstatus(ide_hwif_t *hwif)
+u8 ide_read_altstatus(ide_hwif_t *hwif)
{
if (hwif->host_flags & IDE_HFLAG_MMIO)
return readb((void __iomem *)hwif->io_ports.ctl_addr);
else
return inb(hwif->io_ports.ctl_addr);
}
+EXPORT_SYMBOL_GPL(ide_read_altstatus);

-static u8 ide_read_sff_dma_status(ide_hwif_t *hwif)
+u8 ide_read_sff_dma_status(ide_hwif_t *hwif)
{
if (hwif->host_flags & IDE_HFLAG_MMIO)
return readb((void __iomem *)(hwif->dma_base + ATA_DMA_STATUS));
else
return inb(hwif->dma_base + ATA_DMA_STATUS);
}
+EXPORT_SYMBOL_GPL(ide_read_sff_dma_status);

-static void ide_set_irq(ide_hwif_t *hwif, int on)
+void ide_set_irq(ide_hwif_t *hwif, int on)
{
u8 ctl = ATA_DEVCTL_OBS;

@@ -127,8 +131,9 @@ static void ide_set_irq(ide_hwif_t *hwif
else
outb(ctl, hwif->io_ports.ctl_addr);
}
+EXPORT_SYMBOL_GPL(ide_set_irq);

-static void ide_tf_load(ide_drive_t *drive, ide_task_t *task)
+void ide_tf_load(ide_drive_t *drive, ide_task_t *task)
{
ide_hwif_t *hwif = drive->hwif;
struct ide_io_ports *io_ports = &hwif->io_ports;
@@ -180,8 +185,9 @@ static void ide_tf_load(ide_drive_t *dri
tf_outb((tf->device & HIHI) | drive->select.all,
io_ports->device_addr);
}
+EXPORT_SYMBOL_GPL(ide_tf_load);

-static void ide_tf_read(ide_drive_t *drive, ide_task_t *task)
+void ide_tf_read(ide_drive_t *drive, ide_task_t *task)
{
ide_hwif_t *hwif = drive->hwif;
struct ide_io_ports *io_ports = &hwif->io_ports;
@@ -241,6 +247,7 @@ static void ide_tf_read(ide_drive_t *dri
tf->hob_lbah = tf_inb(io_ports->lbah_addr);
}
}
+EXPORT_SYMBOL_GPL(ide_tf_read);

/*
* Some localbus EIDE interfaces require a special access sequence
@@ -263,8 +270,8 @@ static void ata_vlb_sync(unsigned long p
* so if an odd len is specified, be sure that there's at least one
* extra byte allocated for the buffer.
*/
-static void ata_input_data(ide_drive_t *drive, struct request *rq,
- void *buf, unsigned int len)
+void ide_input_data(ide_drive_t *drive, struct request *rq, void *buf,
+ unsigned int len)
{
ide_hwif_t *hwif = drive->hwif;
struct ide_io_ports *io_ports = &hwif->io_ports;
@@ -304,12 +311,13 @@ static void ata_input_data(ide_drive_t *
insw(data_addr, buf, len / 2);
}
}
+EXPORT_SYMBOL_GPL(ide_input_data);

/*
* This is used for most PIO data transfers *to* the IDE interface
*/
-static void ata_output_data(ide_drive_t *drive, struct request *rq,
- void *buf, unsigned int len)
+void ide_output_data(ide_drive_t *drive, struct request *rq, void *buf,
+ unsigned int len)
{
ide_hwif_t *hwif = drive->hwif;
struct ide_io_ports *io_ports = &hwif->io_ports;
@@ -347,22 +355,7 @@ static void ata_output_data(ide_drive_t
outsw(data_addr, buf, len / 2);
}
}
-
-void default_hwif_transport(ide_hwif_t *hwif)
-{
- hwif->exec_command = ide_exec_command;
- hwif->read_status = ide_read_status;
- hwif->read_altstatus = ide_read_altstatus;
- hwif->read_sff_dma_status = ide_read_sff_dma_status;
-
- hwif->set_irq = ide_set_irq;
-
- hwif->tf_load = ide_tf_load;
- hwif->tf_read = ide_tf_read;
-
- hwif->input_data = ata_input_data;
- hwif->output_data = ata_output_data;
-}
+EXPORT_SYMBOL_GPL(ide_output_data);

u8 ide_read_error(ide_drive_t *drive)
{
@@ -371,7 +364,7 @@ u8 ide_read_error(ide_drive_t *drive)
memset(&task, 0, sizeof(task));
task.tf_flags = IDE_TFLAG_IN_FEATURE;

- drive->hwif->tf_read(drive, &task);
+ drive->hwif->tp_ops->tf_read(drive, &task);

return task.tf.error;
}
@@ -385,13 +378,28 @@ void ide_read_bcount_and_ireason(ide_dri
task.tf_flags = IDE_TFLAG_IN_LBAH | IDE_TFLAG_IN_LBAM |
IDE_TFLAG_IN_NSECT;

- drive->hwif->tf_read(drive, &task);
+ drive->hwif->tp_ops->tf_read(drive, &task);

*bcount = (task.tf.lbah << 8) | task.tf.lbam;
*ireason = task.tf.nsect & 3;
}
EXPORT_SYMBOL_GPL(ide_read_bcount_and_ireason);

+const struct ide_tp_ops default_tp_ops = {
+ .exec_command = ide_exec_command,
+ .read_status = ide_read_status,
+ .read_altstatus = ide_read_altstatus,
+ .read_sff_dma_status = ide_read_sff_dma_status,
+
+ .set_irq = ide_set_irq,
+
+ .tf_load = ide_tf_load,
+ .tf_read = ide_tf_read,
+
+ .input_data = ide_input_data,
+ .output_data = ide_output_data,
+};
+
void ide_fix_driveid (struct hd_driveid *id)
{
#ifndef __LITTLE_ENDIAN
@@ -545,10 +553,10 @@ int drive_is_ready (ide_drive_t *drive)
* about possible isa-pnp and pci-pnp issues yet.
*/
if (hwif->io_ports.ctl_addr)
- stat = hwif->read_altstatus(hwif);
+ stat = hwif->tp_ops->read_altstatus(hwif);
else
/* Note: this may clear a pending IRQ!! */
- stat = hwif->read_status(hwif);
+ stat = hwif->tp_ops->read_status(hwif);

if (stat & BUSY_STAT)
/* drive busy: definitely not interrupting */
@@ -574,24 +582,25 @@ EXPORT_SYMBOL(drive_is_ready);
static int __ide_wait_stat(ide_drive_t *drive, u8 good, u8 bad, unsigned long timeout, u8 *rstat)
{
ide_hwif_t *hwif = drive->hwif;
+ const struct ide_tp_ops *tp_ops = hwif->tp_ops;
unsigned long flags;
int i;
u8 stat;

udelay(1); /* spec allows drive 400ns to assert "BUSY" */
- stat = hwif->read_status(hwif);
+ stat = tp_ops->read_status(hwif);

if (stat & BUSY_STAT) {
local_irq_set(flags);
timeout += jiffies;
- while ((stat = hwif->read_status(hwif)) & BUSY_STAT) {
+ while ((stat = tp_ops->read_status(hwif)) & BUSY_STAT) {
if (time_after(jiffies, timeout)) {
/*
* One last read after the timeout in case
* heavy interrupt load made us not make any
* progress during the timeout..
*/
- stat = hwif->read_status(hwif);
+ stat = tp_ops->read_status(hwif);
if (!(stat & BUSY_STAT))
break;

@@ -611,7 +620,7 @@ static int __ide_wait_stat(ide_drive_t *
*/
for (i = 0; i < 10; i++) {
udelay(1);
- stat = hwif->read_status(hwif);
+ stat = tp_ops->read_status(hwif);

if (OK_STAT(stat, good, bad)) {
*rstat = stat;
@@ -737,6 +746,7 @@ no_80w:
int ide_driveid_update(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
+ const struct ide_tp_ops *tp_ops = hwif->tp_ops;
struct hd_driveid *id;
unsigned long timeout, flags;
u8 stat;
@@ -747,9 +757,9 @@ int ide_driveid_update(ide_drive_t *driv
*/

SELECT_MASK(drive, 1);
- hwif->set_irq(hwif, 1);
+ tp_ops->set_irq(hwif, 1);
msleep(50);
- hwif->exec_command(hwif, WIN_IDENTIFY);
+ tp_ops->exec_command(hwif, WIN_IDENTIFY);
timeout = jiffies + WAIT_WORSTCASE;
do {
if (time_after(jiffies, timeout)) {
@@ -758,11 +768,11 @@ int ide_driveid_update(ide_drive_t *driv
}

msleep(50); /* give drive a breather */
- stat = hwif->read_altstatus(hwif);
+ stat = tp_ops->read_altstatus(hwif);
} while (stat & BUSY_STAT);

msleep(50); /* wait for IRQ and DRQ_STAT */
- stat = hwif->read_status(hwif);
+ stat = tp_ops->read_status(hwif);

if (!OK_STAT(stat, DRQ_STAT, BAD_R_STAT)) {
SELECT_MASK(drive, 0);
@@ -776,8 +786,8 @@ int ide_driveid_update(ide_drive_t *driv
local_irq_restore(flags);
return 0;
}
- hwif->input_data(drive, NULL, id, SECTOR_SIZE);
- (void)hwif->read_status(hwif); /* clear drive IRQ */
+ tp_ops->input_data(drive, NULL, id, SECTOR_SIZE);
+ (void)tp_ops->read_status(hwif); /* clear drive IRQ */
local_irq_enable();
local_irq_restore(flags);
ide_fix_driveid(id);
@@ -798,6 +808,7 @@ int ide_driveid_update(ide_drive_t *driv
int ide_config_drive_speed(ide_drive_t *drive, u8 speed)
{
ide_hwif_t *hwif = drive->hwif;
+ const struct ide_tp_ops *tp_ops = hwif->tp_ops;
int error = 0;
u8 stat;
ide_task_t task;
@@ -833,19 +844,19 @@ int ide_config_drive_speed(ide_drive_t *
SELECT_DRIVE(drive);
SELECT_MASK(drive, 0);
udelay(1);
- hwif->set_irq(hwif, 0);
+ tp_ops->set_irq(hwif, 0);

memset(&task, 0, sizeof(task));
task.tf_flags = IDE_TFLAG_OUT_FEATURE | IDE_TFLAG_OUT_NSECT;
task.tf.feature = SETFEATURES_XFER;
task.tf.nsect = speed;

- hwif->tf_load(drive, &task);
+ tp_ops->tf_load(drive, &task);

- hwif->exec_command(hwif, WIN_SETFEATURES);
+ tp_ops->exec_command(hwif, WIN_SETFEATURES);

if (drive->quirk_list == 2)
- hwif->set_irq(hwif, 1);
+ tp_ops->set_irq(hwif, 1);

error = __ide_wait_stat(drive, drive->ready_stat,
BUSY_STAT|DRQ_STAT|ERR_STAT,
@@ -950,7 +961,7 @@ void ide_execute_command(ide_drive_t *dr

spin_lock_irqsave(&ide_lock, flags);
__ide_set_handler(drive, handler, timeout, expiry);
- hwif->exec_command(hwif, cmd);
+ hwif->tp_ops->exec_command(hwif, cmd);
/*
* Drive takes 400nS to respond, we must avoid the IRQ being
* serviced before that.
@@ -968,7 +979,7 @@ void ide_execute_pkt_cmd(ide_drive_t *dr
unsigned long flags;

spin_lock_irqsave(&ide_lock, flags);
- hwif->exec_command(hwif, WIN_PACKETCMD);
+ hwif->tp_ops->exec_command(hwif, WIN_PACKETCMD);
ndelay(400);
spin_unlock_irqrestore(&ide_lock, flags);
}
@@ -991,7 +1002,7 @@ static ide_startstop_t atapi_reset_pollf

SELECT_DRIVE(drive);
udelay (10);
- stat = hwif->read_status(hwif);
+ stat = hwif->tp_ops->read_status(hwif);

if (OK_STAT(stat, 0, BUSY_STAT))
printk("%s: ATAPI reset complete\n", drive->name);
@@ -1035,7 +1046,7 @@ static ide_startstop_t reset_pollfunc (i
}
}

- tmp = hwif->read_status(hwif);
+ tmp = hwif->tp_ops->read_status(hwif);

if (!OK_STAT(tmp, 0, BUSY_STAT)) {
if (time_before(jiffies, hwgroup->poll_timeout)) {
@@ -1146,6 +1157,7 @@ static ide_startstop_t do_reset1 (ide_dr
ide_hwif_t *hwif;
ide_hwgroup_t *hwgroup;
struct ide_io_ports *io_ports;
+ const struct ide_tp_ops *tp_ops;
const struct ide_port_ops *port_ops;

spin_lock_irqsave(&ide_lock, flags);
@@ -1154,6 +1166,8 @@ static ide_startstop_t do_reset1 (ide_dr

io_ports = &hwif->io_ports;

+ tp_ops = hwif->tp_ops;
+
/* We must not reset with running handlers */
BUG_ON(hwgroup->handler != NULL);

@@ -1163,7 +1177,7 @@ static ide_startstop_t do_reset1 (ide_dr
pre_reset(drive);
SELECT_DRIVE(drive);
udelay (20);
- hwif->exec_command(hwif, WIN_SRST);
+ tp_ops->exec_command(hwif, WIN_SRST);
ndelay(400);
hwgroup->poll_timeout = jiffies + WAIT_WORSTCASE;
hwgroup->polling = 1;
@@ -1196,11 +1210,11 @@ static ide_startstop_t do_reset1 (ide_dr
* TODO: add ->softreset method and stop abusing ->set_irq
*/
/* set SRST and nIEN */
- hwif->set_irq(hwif, 4);
+ tp_ops->set_irq(hwif, 4);
/* more than enough time */
udelay(10);
/* clear SRST, leave nIEN (unless device is on the quirk list) */
- hwif->set_irq(hwif, drive->quirk_list == 2);
+ tp_ops->set_irq(hwif, drive->quirk_list == 2);
/* more than enough time */
udelay(10);
hwgroup->poll_timeout = jiffies + WAIT_WORSTCASE;
@@ -1245,7 +1259,7 @@ int ide_wait_not_busy(ide_hwif_t *hwif,
* about locking issues (2.5 work ?).
*/
mdelay(1);
- stat = hwif->read_status(hwif);
+ stat = hwif->tp_ops->read_status(hwif);
if ((stat & BUSY_STAT) == 0)
return 0;
/*
Index: b/drivers/ide/ide-lib.c
===================================================================
--- a/drivers/ide/ide-lib.c
+++ b/drivers/ide/ide-lib.c
@@ -325,7 +325,7 @@ static void ide_dump_sector(ide_drive_t
else
task.tf_flags = IDE_TFLAG_IN_LBA | IDE_TFLAG_IN_DEVICE;

- drive->hwif->tf_read(drive, &task);
+ drive->hwif->tp_ops->tf_read(drive, &task);

if (lba48 || (tf->device & ATA_LBA))
printk(", LBAsect=%llu",
Index: b/drivers/ide/ide-probe.c
===================================================================
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -126,7 +126,7 @@ static inline void do_identify (ide_driv

id = drive->id;
/* read 512 bytes of id info */
- hwif->input_data(drive, NULL, id, SECTOR_SIZE);
+ hwif->tp_ops->input_data(drive, NULL, id, SECTOR_SIZE);

drive->id_read = 1;
local_irq_enable();
@@ -267,6 +267,7 @@ static int actual_try_to_identify (ide_d
{
ide_hwif_t *hwif = HWIF(drive);
struct ide_io_ports *io_ports = &hwif->io_ports;
+ const struct ide_tp_ops *tp_ops = hwif->tp_ops;
int use_altstatus = 0, rc;
unsigned long timeout;
u8 s = 0, a = 0;
@@ -275,8 +276,8 @@ static int actual_try_to_identify (ide_d
msleep(50);

if (io_ports->ctl_addr) {
- a = hwif->read_altstatus(hwif);
- s = hwif->read_status(hwif);
+ a = tp_ops->read_altstatus(hwif);
+ s = tp_ops->read_status(hwif);
if ((a ^ s) & ~INDEX_STAT)
/* ancient Seagate drives, broken interfaces */
printk(KERN_INFO "%s: probing with STATUS(0x%02x) "
@@ -297,11 +298,11 @@ static int actual_try_to_identify (ide_d
/* disable DMA & overlap */
task.tf_flags = IDE_TFLAG_OUT_FEATURE;

- drive->hwif->tf_load(drive, &task);
+ tp_ops->tf_load(drive, &task);
}

/* ask drive for ID */
- hwif->exec_command(hwif, cmd);
+ tp_ops->exec_command(hwif, cmd);

timeout = ((cmd == WIN_IDENTIFY) ? WAIT_WORSTCASE : WAIT_PIDENTIFY) / 2;
timeout += jiffies;
@@ -312,13 +313,13 @@ static int actual_try_to_identify (ide_d
}
/* give drive a breather */
msleep(50);
- s = use_altstatus ? hwif->read_altstatus(hwif)
- : hwif->read_status(hwif);
+ s = use_altstatus ? tp_ops->read_altstatus(hwif)
+ : tp_ops->read_status(hwif);
} while (s & BUSY_STAT);

/* wait for IRQ and DRQ_STAT */
msleep(50);
- s = hwif->read_status(hwif);
+ s = tp_ops->read_status(hwif);

if (OK_STAT(s, DRQ_STAT, BAD_R_STAT)) {
unsigned long flags;
@@ -330,7 +331,7 @@ static int actual_try_to_identify (ide_d
/* drive responded with ID */
rc = 0;
/* clear drive IRQ */
- (void)hwif->read_status(hwif);
+ (void)tp_ops->read_status(hwif);
local_irq_restore(flags);
} else {
/* drive refused ID */
@@ -352,6 +353,7 @@ static int actual_try_to_identify (ide_d
static int try_to_identify (ide_drive_t *drive, u8 cmd)
{
ide_hwif_t *hwif = HWIF(drive);
+ const struct ide_tp_ops *tp_ops = hwif->tp_ops;
int retval;
int autoprobe = 0;
unsigned long cookie = 0;
@@ -367,7 +369,7 @@ static int try_to_identify (ide_drive_t
autoprobe = 1;
cookie = probe_irq_on();
}
- hwif->set_irq(hwif, autoprobe);
+ tp_ops->set_irq(hwif, autoprobe);
}

retval = actual_try_to_identify(drive, cmd);
@@ -375,9 +377,9 @@ static int try_to_identify (ide_drive_t
if (autoprobe) {
int irq;

- hwif->set_irq(hwif, 0);
+ tp_ops->set_irq(hwif, 0);
/* clear drive IRQ */
- (void)hwif->read_status(hwif);
+ (void)tp_ops->read_status(hwif);
udelay(5);
irq = probe_irq_off(cookie);
if (!hwif->irq) {
@@ -402,7 +404,7 @@ static int ide_busy_sleep(ide_hwif_t *hw

do {
msleep(50);
- stat = hwif->read_status(hwif);
+ stat = hwif->tp_ops->read_status(hwif);
if ((stat & BUSY_STAT) == 0)
return 0;
} while (time_before(jiffies, timeout));
@@ -417,7 +419,7 @@ static u8 ide_read_device(ide_drive_t *d
memset(&task, 0, sizeof(task));
task.tf_flags = IDE_TFLAG_IN_DEVICE;

- drive->hwif->tf_read(drive, &task);
+ drive->hwif->tp_ops->tf_read(drive, &task);

return task.tf.device;
}
@@ -446,6 +448,7 @@ static u8 ide_read_device(ide_drive_t *d
static int do_probe (ide_drive_t *drive, u8 cmd)
{
ide_hwif_t *hwif = HWIF(drive);
+ const struct ide_tp_ops *tp_ops = hwif->tp_ops;
int rc;
u8 stat;

@@ -478,7 +481,7 @@ static int do_probe (ide_drive_t *drive,
return 3;
}

- stat = hwif->read_status(hwif);
+ stat = tp_ops->read_status(hwif);

if (OK_STAT(stat, READY_STAT, BUSY_STAT) ||
drive->present || cmd == WIN_PIDENTIFY) {
@@ -488,7 +491,7 @@ static int do_probe (ide_drive_t *drive,
rc = try_to_identify(drive,cmd);
}

- stat = hwif->read_status(hwif);
+ stat = tp_ops->read_status(hwif);

if (stat == (BUSY_STAT | READY_STAT))
return 4;
@@ -499,13 +502,13 @@ static int do_probe (ide_drive_t *drive,
msleep(50);
SELECT_DRIVE(drive);
msleep(50);
- hwif->exec_command(hwif, WIN_SRST);
+ tp_ops->exec_command(hwif, WIN_SRST);
(void)ide_busy_sleep(hwif);
rc = try_to_identify(drive, cmd);
}

/* ensure drive IRQ is clear */
- stat = hwif->read_status(hwif);
+ stat = tp_ops->read_status(hwif);

if (rc == 1)
printk(KERN_ERR "%s: no response (status = 0x%02x)\n",
@@ -519,7 +522,7 @@ static int do_probe (ide_drive_t *drive,
SELECT_DRIVE(&hwif->drives[0]);
msleep(50);
/* ensure drive irq is clear */
- (void)hwif->read_status(hwif);
+ (void)tp_ops->read_status(hwif);
}
return rc;
}
@@ -530,12 +533,13 @@ static int do_probe (ide_drive_t *drive,
static void enable_nest (ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
+ const struct ide_tp_ops *tp_ops = hwif->tp_ops;
u8 stat;

printk("%s: enabling %s -- ", hwif->name, drive->id->model);
SELECT_DRIVE(drive);
msleep(50);
- hwif->exec_command(hwif, EXABYTE_ENABLE_NEST);
+ tp_ops->exec_command(hwif, EXABYTE_ENABLE_NEST);

if (ide_busy_sleep(hwif)) {
printk(KERN_CONT "failed (timeout)\n");
@@ -544,7 +548,7 @@ static void enable_nest (ide_drive_t *dr

msleep(50);

- stat = hwif->read_status(hwif);
+ stat = tp_ops->read_status(hwif);

if (!OK_STAT(stat, 0, BAD_STAT))
printk(KERN_CONT "failed (status = 0x%02x)\n", stat);
@@ -728,7 +732,7 @@ static int ide_port_wait_ready(ide_hwif_
/* Ignore disks that we will not probe for later. */
if (!drive->noprobe || drive->present) {
SELECT_DRIVE(drive);
- hwif->set_irq(hwif, 1);
+ hwif->tp_ops->set_irq(hwif, 1);
mdelay(2);
rc = ide_wait_not_busy(hwif, 35000);
if (rc)
@@ -1085,7 +1089,7 @@ static int init_irq (ide_hwif_t *hwif)
sa = IRQF_SHARED;

if (io_ports->ctl_addr)
- hwif->set_irq(hwif, 1);
+ hwif->tp_ops->set_irq(hwif, 1);

if (request_irq(hwif->irq,&ide_intr,sa,hwif->name,hwgroup))
goto out_unlink;
@@ -1367,6 +1371,9 @@ static void ide_init_port(ide_hwif_t *hw
hwif->host_flags |= d->host_flags;
hwif->pio_mask = d->pio_mask;

+ if (d->tp_ops)
+ hwif->tp_ops = d->tp_ops;
+
/* ->set_pio_mode for DTC2278 is currently limited to port 0 */
if (hwif->chipset != ide_dtc2278 || hwif->channel == 0)
hwif->port_ops = d->port_ops;
Index: b/drivers/ide/ide-tape.c
===================================================================
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -398,7 +398,7 @@ static void idetape_input_buffers(ide_dr
count = min(
(unsigned int)(bh->b_size - atomic_read(&bh->b_count)),
bcount);
- drive->hwif->input_data(drive, NULL, bh->b_data +
+ drive->hwif->tp_ops->input_data(drive, NULL, bh->b_data +
atomic_read(&bh->b_count), count);
bcount -= count;
atomic_add(count, &bh->b_count);
@@ -424,7 +424,7 @@ static void idetape_output_buffers(ide_d
return;
}
count = min((unsigned int)pc->b_count, (unsigned int)bcount);
- drive->hwif->output_data(drive, NULL, pc->b_data, count);
+ drive->hwif->tp_ops->output_data(drive, NULL, pc->b_data, count);
bcount -= count;
pc->b_data += count;
pc->b_count -= count;
@@ -932,7 +932,7 @@ static ide_startstop_t idetape_media_acc
struct ide_atapi_pc *pc = tape->pc;
u8 stat;

- stat = hwif->read_status(hwif);
+ stat = hwif->tp_ops->read_status(hwif);

if (stat & SEEK_STAT) {
if (stat & ERR_STAT) {
@@ -1019,7 +1019,7 @@ static ide_startstop_t idetape_do_reques
* If the tape is still busy, postpone our request and service
* the other device meanwhile.
*/
- stat = hwif->read_status(hwif);
+ stat = hwif->tp_ops->read_status(hwif);

if (!drive->dsc_overlap && !(rq->cmd[0] & REQ_IDETAPE_PC2))
set_bit(IDETAPE_FLAG_IGNORE_DSC, &tape->flags);
Index: b/drivers/ide/ide-taskfile.c
===================================================================
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -64,6 +64,7 @@ ide_startstop_t do_rw_taskfile (ide_driv
ide_hwif_t *hwif = HWIF(drive);
struct ide_taskfile *tf = &task->tf;
ide_handler_t *handler = NULL;
+ const struct ide_tp_ops *tp_ops = hwif->tp_ops;
const struct ide_dma_ops *dma_ops = hwif->dma_ops;

if (task->data_phase == TASKFILE_MULTI_IN ||
@@ -80,15 +81,15 @@ ide_startstop_t do_rw_taskfile (ide_driv

if ((task->tf_flags & IDE_TFLAG_DMA_PIO_FALLBACK) == 0) {
ide_tf_dump(drive->name, tf);
- hwif->set_irq(hwif, 1);
+ tp_ops->set_irq(hwif, 1);
SELECT_MASK(drive, 0);
- hwif->tf_load(drive, task);
+ tp_ops->tf_load(drive, task);
}

switch (task->data_phase) {
case TASKFILE_MULTI_OUT:
case TASKFILE_OUT:
- hwif->exec_command(hwif, tf->command);
+ tp_ops->exec_command(hwif, tf->command);
ndelay(400); /* FIXME */
return pre_task_out_intr(drive, task->rq);
case TASKFILE_MULTI_IN:
@@ -125,7 +126,7 @@ EXPORT_SYMBOL_GPL(do_rw_taskfile);
static ide_startstop_t set_multmode_intr(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
- u8 stat = hwif->read_status(hwif);
+ u8 stat = hwif->tp_ops->read_status(hwif);

if (OK_STAT(stat, READY_STAT, BAD_STAT))
drive->mult_count = drive->mult_req;
@@ -146,8 +147,12 @@ static ide_startstop_t set_geometry_intr
int retries = 5;
u8 stat;

- while (((stat = hwif->read_status(hwif)) & BUSY_STAT) && retries--)
+ while (1) {
+ stat = hwif->tp_ops->read_status(hwif);
+ if ((stat & BUSY_STAT) == 0 || retries-- == 0)
+ break;
udelay(10);
+ };

if (OK_STAT(stat, READY_STAT, BAD_STAT))
return ide_stopped;
@@ -165,7 +170,7 @@ static ide_startstop_t set_geometry_intr
static ide_startstop_t recal_intr(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
- u8 stat = hwif->read_status(hwif);
+ u8 stat = hwif->tp_ops->read_status(hwif);

if (!OK_STAT(stat, READY_STAT, BAD_STAT))
return ide_error(drive, "recal_intr", stat);
@@ -182,7 +187,7 @@ static ide_startstop_t task_no_data_intr
u8 stat;

local_irq_enable_in_hardirq();
- stat = hwif->read_status(hwif);
+ stat = hwif->tp_ops->read_status(hwif);

if (!OK_STAT(stat, READY_STAT, BAD_STAT))
return ide_error(drive, "task_no_data_intr", stat);
@@ -205,7 +210,7 @@ static u8 wait_drive_not_busy(ide_drive_
* take up to 6 ms on some ATAPI devices, so we will wait max 10 ms.
*/
for (retries = 0; retries < 1000; retries++) {
- stat = hwif->read_status(hwif);
+ stat = hwif->tp_ops->read_status(hwif);

if (stat & BUSY_STAT)
udelay(10);
@@ -260,9 +265,9 @@ static void ide_pio_sector(ide_drive_t *

/* do the actual data transfer */
if (write)
- hwif->output_data(drive, rq, buf, SECTOR_SIZE);
+ hwif->tp_ops->output_data(drive, rq, buf, SECTOR_SIZE);
else
- hwif->input_data(drive, rq, buf, SECTOR_SIZE);
+ hwif->tp_ops->input_data(drive, rq, buf, SECTOR_SIZE);

kunmap_atomic(buf, KM_BIO_SRC_IRQ);
#ifdef CONFIG_HIGHMEM
@@ -389,7 +394,7 @@ static ide_startstop_t task_in_intr(ide_
{
ide_hwif_t *hwif = drive->hwif;
struct request *rq = hwif->hwgroup->rq;
- u8 stat = hwif->read_status(hwif);
+ u8 stat = hwif->tp_ops->read_status(hwif);

/* Error? */
if (stat & ERR_STAT)
@@ -423,7 +428,7 @@ static ide_startstop_t task_out_intr (id
{
ide_hwif_t *hwif = drive->hwif;
struct request *rq = HWGROUP(drive)->rq;
- u8 stat = hwif->read_status(hwif);
+ u8 stat = hwif->tp_ops->read_status(hwif);

if (!OK_STAT(stat, DRIVE_READY, drive->bad_wstat))
return task_error(drive, rq, __func__, stat);
Index: b/drivers/ide/ide.c
===================================================================
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -101,7 +101,7 @@ void ide_init_port_data(ide_hwif_t *hwif

init_completion(&hwif->gendev_rel_comp);

- default_hwif_transport(hwif);
+ hwif->tp_ops = &default_tp_ops;

ide_port_init_devices_data(hwif);
}
Index: b/drivers/ide/legacy/falconide.c
===================================================================
--- a/drivers/ide/legacy/falconide.c
+++ b/drivers/ide/legacy/falconide.c
@@ -66,6 +66,27 @@ static void falconide_output_data(ide_dr
outsw_swapw(data_addr, buf, (len + 1) / 2);
}

+/* Atari has a byte-swapped IDE interface */
+static const struct ide_tp_ops falconide_tp_ops = {
+ .exec_command = ide_exec_command,
+ .read_status = ide_read_status,
+ .read_altstatus = ide_read_altstatus,
+ .read_sff_dma_status = ide_read_sff_dma_status,
+
+ .set_irq = ide_set_irq,
+
+ .tf_load = ide_tf_load,
+ .tf_read = ide_tf_read,
+
+ .input_data = falconide_input_data,
+ .output_data = falconide_output_data,
+};
+
+static const struct ide_port_info falconide_port_info = {
+ .tp_ops = &falconide_tp_ops,
+ .host_flags = IDE_HFLAG_NO_DMA,
+};
+
static void __init falconide_setup_ports(hw_regs_t *hw)
{
int i;
@@ -111,12 +132,8 @@ static int __init falconide_init(void)
u8 index = hwif->index;
u8 idx[4] = { index, 0xff, 0xff, 0xff };

- /* Atari has a byte-swapped IDE interface */
- hwif->input_data = falconide_input_data;
- hwif->output_data = falconide_output_data;
-
ide_get_lock(NULL, NULL);
- ide_device_add(idx, NULL, hws);
+ ide_device_add(idx, &falconide_port_info, hws);
ide_release_lock();
}

Index: b/drivers/ide/legacy/q40ide.c
===================================================================
--- a/drivers/ide/legacy/q40ide.c
+++ b/drivers/ide/legacy/q40ide.c
@@ -96,6 +96,27 @@ static void q40ide_output_data(ide_drive
outsw_swapw(data_addr, buf, (len + 1) / 2);
}

+/* Q40 has a byte-swapped IDE interface */
+static const struct ide_tp_ops q40ide_tp_ops = {
+ .exec_command = ide_exec_command,
+ .read_status = ide_read_status,
+ .read_altstatus = ide_read_altstatus,
+ .read_sff_dma_status = ide_read_sff_dma_status,
+
+ .set_irq = ide_set_irq,
+
+ .tf_load = ide_tf_load,
+ .tf_read = ide_tf_read,
+
+ .input_data = q40ide_input_data,
+ .output_data = q40ide_output_data,
+};
+
+static const struct ide_port_info q40ide_port_info = {
+ .tp_ops = &q40ide_tp_ops,
+ .host_flags = IDE_HFLAG_NO_DMA,
+};
+
/*
* the static array is needed to have the name reported in /proc/ioports,
* hwif->name unfortunately isn't available yet
@@ -141,16 +162,12 @@ static int __init q40ide_init(void)
if (hwif) {
hwif->chipset = ide_generic;

- /* Q40 has a byte-swapped IDE interface */
- hwif->input_data = q40ide_input_data;
- hwif->output_data = q40ide_output_data;
-
hws[i] = &hw[i];
idx[i] = hwif->index;
}
}

- ide_device_add(idx, NULL, hws);
+ ide_device_add(idx, &q40ide_port_info, hws);

return 0;
}
Index: b/drivers/ide/mips/au1xxx-ide.c
===================================================================
--- a/drivers/ide/mips/au1xxx-ide.c
+++ b/drivers/ide/mips/au1xxx-ide.c
@@ -519,6 +519,23 @@ static void auide_setup_ports(hw_regs_t
*ata_regs = ahwif->regbase + (14 << IDE_REG_SHIFT);
}

+#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA
+static const struct ide_tp_ops au1xxx_tp_ops = {
+ .exec_command = ide_exec_command,
+ .read_status = ide_read_status,
+ .read_altstatus = ide_read_altstatus,
+ .read_sff_dma_status = ide_read_sff_dma_status,
+
+ .set_irq = ide_set_irq,
+
+ .tf_load = ide_tf_load,
+ .tf_read = ide_tf_read,
+
+ .input_data = au1xxx_input_data,
+ .output_data = au1xxx_output_data,
+};
+#endif
+
static const struct ide_port_ops au1xxx_port_ops = {
.set_pio_mode = au1xxx_set_pio_mode,
.set_dma_mode = auide_set_dma_mode,
@@ -526,6 +543,9 @@ static const struct ide_port_ops au1xxx_

static const struct ide_port_info au1xxx_port_info = {
.init_dma = auide_ddma_init,
+#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA
+ .tp_ops = &au1xxx_tp_ops,
+#endif
.port_ops = &au1xxx_port_ops,
#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
.dma_ops = &au1xxx_dma_ops,
@@ -596,15 +616,6 @@ static int au_ide_probe(struct device *d
hw.dev = dev;
hw.chipset = ide_au1xxx;

- /* If the user has selected DDMA assisted copies,
- then set up a few local I/O function entry points
- */
-
-#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA
- hwif->input_data = au1xxx_input_data;
- hwif->output_data = au1xxx_output_data;
-#endif
-
auide_hwif.hwif = hwif;

idx[0] = hwif->index;
Index: b/drivers/ide/pci/ns87415.c
===================================================================
--- a/drivers/ide/pci/ns87415.c
+++ b/drivers/ide/pci/ns87415.c
@@ -104,7 +104,22 @@ static void superio_tf_read(ide_drive_t
}
}

-static void __devinit superio_ide_init_iops (struct hwif_s *hwif)
+static const struct ide_tp_ops superio_tp_ops = {
+ .exec_command = ide_exec_command,
+ .read_status = superio_read_status,
+ .read_altstatus = ide_read_altstatus,
+ .read_sff_dma_status = superio_read_sff_dma_status,
+
+ .set_irq = ide_set_irq,
+
+ .tf_load = ide_tf_load,
+ .tf_read = superio_tf_read,
+
+ .input_data = ide_input_data,
+ .output_data = ide_output_data,
+};
+
+static void __devinit superio_init_iops(struct hwif_s *hwif)
{
struct pci_dev *pdev = to_pci_dev(hwif->dev);
u32 dma_stat;
@@ -115,21 +130,6 @@ static void __devinit superio_ide_init_i
/* Clear error/interrupt, enable dma */
tmp = superio_ide_inb(dma_stat);
outb(tmp | 0x66, dma_stat);
-
- hwif->read_status = superio_read_status;
- hwif->read_sff_dma_status = superio_read_sff_dma_status;
-
- hwif->tf_read = superio_tf_read;
-
-}
-
-static void __devinit init_iops_ns87415(ide_hwif_t *hwif)
-{
- struct pci_dev *dev = to_pci_dev(hwif->dev);
-
- if (PCI_SLOT(dev->devfn) == 0xE)
- /* Built-in - assume it's under superio. */
- superio_ide_init_iops(hwif);
}
#endif

@@ -195,7 +195,7 @@ static int ns87415_dma_end(ide_drive_t *
u8 dma_stat = 0, dma_cmd = 0;

drive->waiting_for_dma = 0;
- dma_stat = hwif->read_sff_dma_status(hwif);
+ dma_stat = hwif->tp_ops->read_sff_dma_status(hwif);
/* get DMA command mode */
dma_cmd = inb(hwif->dma_base + ATA_DMA_CMD);
/* stop DMA */
@@ -310,9 +310,6 @@ static const struct ide_dma_ops ns87415_

static const struct ide_port_info ns87415_chipset __devinitdata = {
.name = "NS87415",
-#ifdef CONFIG_SUPERIO
- .init_iops = init_iops_ns87415,
-#endif
.init_hwif = init_hwif_ns87415,
.port_ops = &ns87415_port_ops,
.dma_ops = &ns87415_dma_ops,
@@ -322,7 +319,16 @@ static const struct ide_port_info ns8741

static int __devinit ns87415_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{
- return ide_setup_pci_device(dev, &ns87415_chipset);
+ struct ide_port_info d = ns87415_chipset;
+
+#ifdef CONFIG_SUPERIO
+ if (PCI_SLOT(dev->devfn) == 0xE) {
+ /* Built-in - assume it's under superio. */
+ d.init_iops = superio_init_iops;
+ d.tp_ops = &superio_tp_ops;
+ }
+#endif
+ return ide_setup_pci_device(dev, &d);
}

static const struct pci_device_id ns87415_pci_tbl[] = {
Index: b/drivers/ide/pci/scc_pata.c
===================================================================
--- a/drivers/ide/pci/scc_pata.c
+++ b/drivers/ide/pci/scc_pata.c
@@ -808,19 +808,6 @@ static void __devinit init_mmio_iops_scc

ide_set_hwifdata(hwif, ports);

- hwif->exec_command = scc_exec_command;
- hwif->read_status = scc_read_status;
- hwif->read_altstatus = scc_read_altstatus;
- hwif->read_sff_dma_status = scc_read_sff_dma_status;
-
- hwif->set_irq = scc_set_irq;
-
- hwif->tf_load = scc_tf_load;
- hwif->tf_read = scc_tf_read;
-
- hwif->input_data = scc_input_data;
- hwif->output_data = scc_output_data;
-
hwif->dma_base = dma_base;
hwif->config_data = ports->ctl;
}
@@ -872,6 +859,21 @@ static void __devinit init_hwif_scc(ide_
hwif->ultra_mask = ATA_UDMA5; /* 100MHz */
}

+static const struct ide_tp_ops scc_tp_ops = {
+ .exec_command = scc_exec_command,
+ .read_status = scc_read_status,
+ .read_altstatus = scc_read_altstatus,
+ .read_sff_dma_status = scc_read_sff_dma_status,
+
+ .set_irq = scc_set_irq,
+
+ .tf_load = scc_tf_load,
+ .tf_read = scc_tf_read,
+
+ .input_data = scc_input_data,
+ .output_data = scc_output_data,
+};
+
static const struct ide_port_ops scc_port_ops = {
.set_pio_mode = scc_set_pio_mode,
.set_dma_mode = scc_set_dma_mode,
@@ -895,6 +897,7 @@ static const struct ide_dma_ops scc_dma_
.name = name_str, \
.init_iops = init_iops_scc, \
.init_hwif = init_hwif_scc, \
+ .tp_ops = &scc_tp_ops, \
.port_ops = &scc_port_ops, \
.dma_ops = &scc_dma_ops, \
.host_flags = IDE_HFLAG_SINGLE, \
Index: b/drivers/ide/pci/sgiioc4.c
===================================================================
--- a/drivers/ide/pci/sgiioc4.c
+++ b/drivers/ide/pci/sgiioc4.c
@@ -550,6 +550,21 @@ static int sgiioc4_dma_setup(ide_drive_t
return 0;
}

+static const struct ide_tp_ops sgiioc4_tp_ops = {
+ .exec_command = ide_exec_command,
+ .read_status = sgiioc4_read_status,
+ .read_altstatus = ide_read_altstatus,
+ .read_sff_dma_status = ide_read_sff_dma_status,
+
+ .set_irq = ide_set_irq,
+
+ .tf_load = ide_tf_load,
+ .tf_read = ide_tf_read,
+
+ .input_data = ide_input_data,
+ .output_data = ide_output_data,
+};
+
static const struct ide_port_ops sgiioc4_port_ops = {
.set_dma_mode = sgiioc4_set_dma_mode,
/* reset DMA engine, clear IRQs */
@@ -572,6 +587,7 @@ static const struct ide_port_info sgiioc
.name = DRV_NAME,
.chipset = ide_pci,
.init_dma = ide_dma_sgiioc4,
+ .tp_ops = &sgiioc4_tp_ops,
.port_ops = &sgiioc4_port_ops,
.dma_ops = &sgiioc4_dma_ops,
.host_flags = IDE_HFLAG_MMIO,
@@ -626,8 +642,6 @@ sgiioc4_ide_setup_pci_device(struct pci_
/* Initializing chipset IRQ Registers */
writel(0x03, (void __iomem *)(irqport + IOC4_INTR_SET * 4));

- hwif->read_status = sgiioc4_read_status;
-
idx[0] = hwif->index;

if (ide_device_add(idx, &d, hws))
Index: b/drivers/ide/ppc/pmac.c
===================================================================
--- a/drivers/ide/ppc/pmac.c
+++ b/drivers/ide/ppc/pmac.c
@@ -972,6 +972,21 @@ static void pmac_ide_init_dev(ide_drive_
}
}

+static const struct ide_tp_ops pmac_tp_ops = {
+ .exec_command = pmac_exec_command,
+ .read_status = ide_read_status,
+ .read_altstatus = ide_read_altstatus,
+ .read_sff_dma_status = ide_read_sff_dma_status,
+
+ .set_irq = pmac_set_irq,
+
+ .tf_load = ide_tf_load,
+ .tf_read = ide_tf_read,
+
+ .input_data = ide_input_data,
+ .output_data = ide_output_data,
+};
+
static const struct ide_port_ops pmac_ide_ata6_port_ops = {
.init_dev = pmac_ide_init_dev,
.set_pio_mode = pmac_ide_set_pio_mode,
@@ -1001,10 +1016,11 @@ static const struct ide_port_info pmac_p
.name = DRV_NAME,
.init_dma = pmac_ide_init_dma,
.chipset = ide_pmac,
+ .tp_ops = &pmac_tp_ops,
+ .port_ops = &pmac_ide_port_ops,
#ifdef CONFIG_BLK_DEV_IDEDMA_PMAC
.dma_ops = &pmac_dma_ops,
#endif
- .port_ops = &pmac_ide_port_ops,
.host_flags = IDE_HFLAG_SET_PIO_MODE_KEEP_DMA |
IDE_HFLAG_POST_SET_MODE |
IDE_HFLAG_MMIO |
@@ -1100,9 +1116,6 @@ static int __devinit pmac_ide_setup_devi
if (hwif == NULL)
return -ENOENT;

- hwif->exec_command = pmac_exec_command;
- hwif->set_irq = pmac_set_irq;
-
idx[0] = hwif->index;

ide_device_add(idx, &d, hws);
Index: b/drivers/ide/setup-pci.c
===================================================================
--- a/drivers/ide/setup-pci.c
+++ b/drivers/ide/setup-pci.c
@@ -124,7 +124,7 @@ int ide_pci_check_simplex(ide_hwif_t *hw
* we tune the drive then try to grab DMA ownership if we want to be
* the DMA end. This has to be become dynamic to handle hot-plug.
*/
- dma_stat = hwif->read_sff_dma_status(hwif);
+ dma_stat = hwif->tp_ops->read_sff_dma_status(hwif);
if ((dma_stat & 0x80) && hwif->mate && hwif->mate->dma_base) {
printk(KERN_INFO "%s: simplex device: DMA disabled\n", d->name);
return -1;
Index: b/drivers/scsi/ide-scsi.c
===================================================================
--- a/drivers/scsi/ide-scsi.c
+++ b/drivers/scsi/ide-scsi.c
@@ -142,7 +142,8 @@ static void ide_scsi_io_buffers(ide_driv
unsigned int bcount, int write)
{
ide_hwif_t *hwif = drive->hwif;
- xfer_func_t *xf = write ? hwif->output_data : hwif->input_data;
+ const struct ide_tp_ops *tp_ops = hwif->tp_ops;
+ xfer_func_t *xf = write ? tp_ops->output_data : tp_ops->input_data;
char *buf;
int count;

@@ -246,9 +247,9 @@ idescsi_atapi_error(ide_drive_t *drive,
{
ide_hwif_t *hwif = drive->hwif;

- if (hwif->read_status(hwif) & (BUSY_STAT | DRQ_STAT))
+ if (hwif->tp_ops->read_status(hwif) & (BUSY_STAT | DRQ_STAT))
/* force an abort */
- hwif->exec_command(hwif, WIN_IDLEIMMEDIATE);
+ hwif->tp_ops->exec_command(hwif, WIN_IDLEIMMEDIATE);

rq->errors++;

Index: b/include/linux/ide.h
===================================================================
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -387,8 +387,28 @@ typedef struct ide_drive_s {
((1<<ide_pci)|(1<<ide_cmd646)|(1<<ide_ali14xx))
#define IDE_CHIPSET_IS_PCI(c) ((IDE_CHIPSET_PCI_MASK >> (c)) & 1)

+struct ide_task_s;
struct ide_port_info;

+struct ide_tp_ops {
+ void (*exec_command)(struct hwif_s *, u8);
+ u8 (*read_status)(struct hwif_s *);
+ u8 (*read_altstatus)(struct hwif_s *);
+ u8 (*read_sff_dma_status)(struct hwif_s *);
+
+ void (*set_irq)(struct hwif_s *, int);
+
+ void (*tf_load)(ide_drive_t *, struct ide_task_s *);
+ void (*tf_read)(ide_drive_t *, struct ide_task_s *);
+
+ void (*input_data)(ide_drive_t *, struct request *, void *,
+ unsigned int);
+ void (*output_data)(ide_drive_t *, struct request *, void *,
+ unsigned int);
+};
+
+extern const struct ide_tp_ops default_tp_ops;
+
struct ide_port_ops {
/* host specific initialization of a device */
void (*init_dev)(ide_drive_t *);
@@ -426,8 +446,6 @@ struct ide_dma_ops {
void (*dma_timeout)(struct ide_drive_s *);
};

-struct ide_task_s;
-
typedef struct hwif_s {
struct hwif_s *next; /* for linked-list in ide_hwgroup_t */
struct hwif_s *mate; /* other hwif from same PCI chip */
@@ -465,22 +483,10 @@ typedef struct hwif_s {

void (*rw_disk)(ide_drive_t *, struct request *);

+ const struct ide_tp_ops *tp_ops;
const struct ide_port_ops *port_ops;
const struct ide_dma_ops *dma_ops;

- void (*exec_command)(struct hwif_s *, u8);
- u8 (*read_status)(struct hwif_s *);
- u8 (*read_altstatus)(struct hwif_s *);
- u8 (*read_sff_dma_status)(struct hwif_s *);
-
- void (*set_irq)(struct hwif_s *, int);
-
- void (*tf_load)(ide_drive_t *, struct ide_task_s *);
- void (*tf_read)(ide_drive_t *, struct ide_task_s *);
-
- void (*input_data)(ide_drive_t *, struct request *, void *, unsigned);
- void (*output_data)(ide_drive_t *, struct request *, void *, unsigned);
-
void (*ide_dma_clear_irq)(ide_drive_t *drive);

/* dma physical region descriptor table (cpu view) */
@@ -935,6 +941,19 @@ typedef struct ide_task_s {

void ide_tf_dump(const char *, struct ide_taskfile *);

+void ide_exec_command(ide_hwif_t *, u8);
+u8 ide_read_status(ide_hwif_t *);
+u8 ide_read_altstatus(ide_hwif_t *);
+u8 ide_read_sff_dma_status(ide_hwif_t *);
+
+void ide_set_irq(ide_hwif_t *, int);
+
+void ide_tf_load(ide_drive_t *, ide_task_t *);
+void ide_tf_read(ide_drive_t *, ide_task_t *);
+
+void ide_input_data(ide_drive_t *, struct request *, void *, unsigned int);
+void ide_output_data(ide_drive_t *, struct request *, void *, unsigned int);
+
extern void SELECT_DRIVE(ide_drive_t *);
void SELECT_MASK(ide_drive_t *, int);

@@ -1008,8 +1027,6 @@ static inline int ide_hwif_setup_dma(ide
}
#endif

-extern void default_hwif_transport(ide_hwif_t *);
-
typedef struct ide_pci_enablebit_s {
u8 reg; /* byte pci reg holding the enable-bit */
u8 mask; /* mask to isolate the enable-bit */
@@ -1098,6 +1115,7 @@ struct ide_port_info {
int (*init_dma)(ide_hwif_t *,
const struct ide_port_info *);

+ const struct ide_tp_ops *tp_ops;
const struct ide_port_ops *port_ops;
const struct ide_dma_ops *dma_ops;

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