ide: add struct ide_tp_ops (take 2)

* 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().

v2:

* Fix missing convertion in ns87415.c.

There should be no functional changes caused by this patch.
Signed-off-by: default avatarBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
parent d6276b5f
......@@ -382,7 +382,7 @@ static void icside_dma_timeout(ide_drive_t *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);
}
......
......@@ -155,6 +155,21 @@ static void h8300_output_data(ide_drive_t *drive, struct request *rq,
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 *hw)
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;
......
......@@ -22,6 +22,7 @@ ide_startstop_t ide_pc_intr(ide_drive_t *drive, struct ide_atapi_pc *pc,
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 *drive, struct ide_atapi_pc *pc,
}
/* 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 *drive)
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_drive_t *drive, struct ide_atapi_pc *pc,
/* 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;
}
......
......@@ -285,7 +285,7 @@ static int cdrom_decode_status(ide_drive_t *drive, int good_stat, int *stat_ret)
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_packet_command(ide_drive_t *drive,
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_drive_t *drive, struct request *rq,
* 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(ide_drive_t *drive)
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 */
......@@ -1200,7 +1200,7 @@ static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq,
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) {
......
......@@ -104,7 +104,7 @@ ide_startstop_t ide_dma_intr (ide_drive_t *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_drive_t *drive)
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, int on)
{
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)
......
......@@ -247,9 +247,9 @@ static void ide_floppy_io_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc,
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_drive_t *drive)
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(ide_drive_t *drive, int __user *arg)
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;
......
......@@ -330,7 +330,7 @@ void ide_end_drive_cmd (ide_drive_t *drive, u8 stat, u8 err)
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_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->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_drive_t *drive, struct request *rq, u8
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(ide_drive_t *drive, struct request *rq, u
/* 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);
......@@ -710,7 +710,7 @@ static ide_startstop_t execute_drive_cmd (ide_drive_t *drive,
#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;
......@@ -755,7 +755,7 @@ static void ide_check_pm_state(ide_drive_t *drive, struct request *rq)
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);
......@@ -1042,7 +1042,7 @@ static void ide_do_request (ide_hwgroup_t *hwgroup, int masked_irq)
* 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;
......@@ -1142,7 +1142,7 @@ static ide_startstop_t ide_dma_timeout_retry(ide_drive_t *drive, int error)
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);
......@@ -1267,7 +1267,7 @@ void ide_timer_expiry (unsigned long data)
} 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);
......@@ -1323,7 +1323,7 @@ static void unexpected_intr (int irq, ide_hwgroup_t *hwgroup)
*/
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 */
......@@ -1414,7 +1414,7 @@ irqreturn_t ide_intr (int irq, void *dev_id)
* Whack the status register, just in case
* we have a leftover pending IRQ.
*/
(void)hwif->read_status(hwif);
(void)hwif->tp_ops->read_status(hwif);
#endif /* CONFIG_BLK_DEV_IDEPCI */
}
spin_unlock_irqrestore(&ide_lock, flags);
......@@ -1531,9 +1531,9 @@ void ide_pktcmd_tf_load(ide_drive_t *drive, u32 tf_flags, u16 bcount, u8 dma)
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);
......@@ -1545,9 +1545,9 @@ void ide_pad_transfer(ide_drive_t *drive, int write, int len)
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;
}
}
......
This diff is collapsed.
......@@ -325,7 +325,7 @@ static void ide_dump_sector(ide_drive_t *drive)
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",
......
......@@ -126,7 +126,7 @@ static inline void do_identify (ide_drive_t *drive, u8 cmd)
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_drive_t *drive, u8 cmd)
{
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_drive_t *drive, u8 cmd)
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_drive_t *drive, u8 cmd)
/* 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_drive_t *drive, u8 cmd)
}
/* 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_drive_t *drive, u8 cmd)
/* 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_drive_t *drive, u8 cmd)
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 *drive, u8 cmd)
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 *drive, u8 cmd)
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 *hwif)
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 *drive)
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 *drive)
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, u8 cmd)
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, u8 cmd)
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, u8 cmd)
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, u8 cmd)
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, u8 cmd)
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 *drive)
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);
......@@ -726,7 +730,7 @@ static int ide_port_wait_ready(ide_hwif_t *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)
......@@ -1083,7 +1087,7 @@ 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;
......@@ -1361,6 +1365,9 @@ static void ide_init_port(ide_hwif_t *hwif, unsigned int port,
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;
......
......@@ -398,7 +398,7 @@ static void idetape_input_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc,
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_drive_t *drive, struct ide_atapi_pc *pc,
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_access_finished(ide_drive_t *drive)
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_request(ide_drive_t *drive,
* 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);
......
......@@ -64,6 +64,7 @@ ide_startstop_t do_rw_taskfile (ide_drive_t *drive, ide_task_t *task)
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_drive_t *drive, ide_task_t *task)
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(ide_drive_t *drive)
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(ide_drive_t *drive)
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(ide_drive_t *drive)
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_t *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 *drive, struct request *rq,
/* 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_drive_t *drive)
{
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 (ide_drive_t *drive)
{
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);
......
......@@ -101,7 +101,7 @@ void ide_init_port_data(ide_hwif_t *hwif, unsigned int index)
init_completion(&hwif->gendev_rel_comp);
default_hwif_transport(hwif);
hwif->tp_ops = &default_tp_ops;
ide_port_init_devices_data(hwif);
}
......
......@@ -66,6 +66,27 @@ static void falconide_output_da