Initial import of modified Linux 2.6.28 tree

Original upstream URL:
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git | branch linux-2.6.28.y

1 files changed, 682 insertions, 0 deletions

diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
new file mode 100644
index 0000000..bf4fb9d
--- /dev/null
+++ b/drivers/ide/ide-taskfile.c
@@ -0,0 +1,682 @@
+/*
+ *  Copyright (C) 2000-2002	   Michael Cornwell <cornwell@acm.org>
+ *  Copyright (C) 2000-2002	   Andre Hedrick <andre@linux-ide.org>
+ *  Copyright (C) 2001-2002	   Klaus Smolin
+ *					IBM Storage Technology Division
+ *  Copyright (C) 2003-2004, 2007  Bartlomiej Zolnierkiewicz
+ *
+ *  The big the bad and the ugly.
+ */
+
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/hdreg.h>
+#include <linux/ide.h>
+#include <linux/scatterlist.h>
+
+#include <asm/uaccess.h>
+#include <asm/io.h>
+
+void ide_tf_dump(const char *s, struct ide_taskfile *tf)
+{
+#ifdef DEBUG
+	printk("%s: tf: feat 0x%02x nsect 0x%02x lbal 0x%02x "
+		"lbam 0x%02x lbah 0x%02x dev 0x%02x cmd 0x%02x\n",
+		s, tf->feature, tf->nsect, tf->lbal,
+		tf->lbam, tf->lbah, tf->device, tf->command);
+	printk("%s: hob: nsect 0x%02x lbal 0x%02x "
+		"lbam 0x%02x lbah 0x%02x\n",
+		s, tf->hob_nsect, tf->hob_lbal,
+		tf->hob_lbam, tf->hob_lbah);
+#endif
+}
+
+int taskfile_lib_get_identify (ide_drive_t *drive, u8 *buf)
+{
+	ide_task_t args;
+
+	memset(&args, 0, sizeof(ide_task_t));
+	args.tf.nsect = 0x01;
+	if (drive->media == ide_disk)
+		args.tf.command = ATA_CMD_ID_ATA;
+	else
+		args.tf.command = ATA_CMD_ID_ATAPI;
+	args.tf_flags	= IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
+	args.data_phase	= TASKFILE_IN;
+	return ide_raw_taskfile(drive, &args, buf, 1);
+}
+
+static ide_startstop_t task_no_data_intr(ide_drive_t *);
+static ide_startstop_t pre_task_out_intr(ide_drive_t *, struct request *);
+static ide_startstop_t task_in_intr(ide_drive_t *);
+
+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 ||
+	    task->data_phase == TASKFILE_MULTI_OUT) {
+		if (!drive->mult_count) {
+			printk(KERN_ERR "%s: multimode not set!\n",
+					drive->name);
+			return ide_stopped;
+		}
+	}
+
+	if (task->tf_flags & IDE_TFLAG_FLAGGED)
+		task->tf_flags |= IDE_TFLAG_FLAGGED_SET_IN_FLAGS;
+
+	memcpy(&hwif->task, task, sizeof(*task));
+
+	if ((task->tf_flags & IDE_TFLAG_DMA_PIO_FALLBACK) == 0) {
+		ide_tf_dump(drive->name, tf);
+		tp_ops->set_irq(hwif, 1);
+		SELECT_MASK(drive, 0);
+		tp_ops->tf_load(drive, task);
+	}
+
+	switch (task->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, task->rq);
+	case TASKFILE_MULTI_IN:
+	case TASKFILE_IN:
+		handler = task_in_intr;
+		/* fall-through */
+	case TASKFILE_NO_DATA:
+		if (handler == NULL)
+			handler = task_no_data_intr;
+		ide_execute_command(drive, tf->command, handler,
+				    WAIT_WORSTCASE, NULL);
+		return ide_started;
+	default:
+		if ((drive->dev_flags & IDE_DFLAG_USING_DMA) == 0 ||
+		    dma_ops->dma_setup(drive))
+			return ide_stopped;
+		dma_ops->dma_exec_cmd(drive, tf->command);
+		dma_ops->dma_start(drive);
+		return ide_started;
+	}
+}
+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;
+	ide_task_t *task = &hwif->task;
+	struct ide_taskfile *tf = &task->tf;
+	int custom = (task->tf_flags & IDE_TFLAG_CUSTOM_HANDLER) ? 1 : 0;
+	int retries = (custom && tf->command == ATA_CMD_INIT_DEV_PARAMS) ? 5 : 1;
+	u8 stat;
+
+	local_irq_enable_in_hardirq();
+
+	while (1) {
+		stat = hwif->tp_ops->read_status(hwif);
+		if ((stat & ATA_BUSY) == 0 || retries-- == 0)
+			break;
+		udelay(10);
+	};
+
+	if (!OK_STAT(stat, ATA_DRDY, BAD_STAT)) {
+		if (custom && tf->command == ATA_CMD_SET_MULTI) {
+			drive->mult_req = drive->mult_count = 0;
+			drive->special.b.recalibrate = 1;
+			(void)ide_dump_status(drive, __func__, stat);
+			return ide_stopped;
+		} else if (custom && tf->command == ATA_CMD_INIT_DEV_PARAMS) {
+			if ((stat & (ATA_ERR | ATA_DRQ)) == 0) {
+				ide_set_handler(drive, &task_no_data_intr,
+						WAIT_WORSTCASE, NULL);
+				return ide_started;
+			}
+		}
+		return ide_error(drive, "task_no_data_intr", stat);
+		/* calls ide_end_drive_cmd */
+	}
+
+	if (!custom)
+		ide_end_drive_cmd(drive, stat, ide_read_error(drive));
+	else if (tf->command == ATA_CMD_IDLEIMMEDIATE) {
+		hwif->tp_ops->tf_read(drive, task);
+		if (tf->lbal != 0xc4) {
+			printk(KERN_ERR "%s: head unload failed!\n",
+			       drive->name);
+			ide_tf_dump(drive->name, tf);
+		} else
+			drive->dev_flags |= IDE_DFLAG_PARKED;
+		ide_end_drive_cmd(drive, stat, ide_read_error(drive));
+	} else if (tf->command == ATA_CMD_SET_MULTI)
+		drive->mult_count = drive->mult_req;
+
+	return ide_stopped;
+}
+
+static u8 wait_drive_not_busy(ide_drive_t *drive)
+{
+	ide_hwif_t *hwif = drive->hwif;
+	int retries;
+	u8 stat;
+
+	/*
+	 * Last sector was transfered, wait until device is ready.  This can
+	 * take up to 6 ms on some ATAPI devices, so we will wait max 10 ms.
+	 */
+	for (retries = 0; retries < 1000; retries++) {
+		stat = hwif->tp_ops->read_status(hwif);
+
+		if (stat & ATA_BUSY)
+			udelay(10);
+		else
+			break;
+	}
+
+	if (stat & ATA_BUSY)
+		printk(KERN_ERR "%s: drive still BUSY!\n", drive->name);
+
+	return stat;
+}
+
+static void ide_pio_sector(ide_drive_t *drive, struct request *rq,
+			   unsigned int write)
+{
+	ide_hwif_t *hwif = drive->hwif;
+	struct scatterlist *sg = hwif->sg_table;
+	struct scatterlist *cursg = hwif->cursg;
+	struct page *page;
+#ifdef CONFIG_HIGHMEM
+	unsigned long flags;
+#endif
+	unsigned int offset;
+	u8 *buf;
+
+	cursg = hwif->cursg;
+	if (!cursg) {
+		cursg = sg;
+		hwif->cursg = sg;
+	}
+
+	page = sg_page(cursg);
+	offset = cursg->offset + hwif->cursg_ofs * SECTOR_SIZE;
+
+	/* get the current page and offset */
+	page = nth_page(page, (offset >> PAGE_SHIFT));
+	offset %= PAGE_SIZE;
+
+#ifdef CONFIG_HIGHMEM
+	local_irq_save(flags);
+#endif
+	buf = kmap_atomic(page, KM_BIO_SRC_IRQ) + offset;
+
+	hwif->nleft--;
+	hwif->cursg_ofs++;
+
+	if ((hwif->cursg_ofs * SECTOR_SIZE) == cursg->length) {
+		hwif->cursg = sg_next(hwif->cursg);
+		hwif->cursg_ofs = 0;
+	}
+
+	/* do the actual data transfer */
+	if (write)
+		hwif->tp_ops->output_data(drive, rq, buf, SECTOR_SIZE);
+	else
+		hwif->tp_ops->input_data(drive, rq, buf, SECTOR_SIZE);
+
+	kunmap_atomic(buf, KM_BIO_SRC_IRQ);
+#ifdef CONFIG_HIGHMEM
+	local_irq_restore(flags);
+#endif
+}
+
+static void ide_pio_multi(ide_drive_t *drive, struct request *rq,
+			  unsigned int write)
+{
+	unsigned int nsect;
+
+	nsect = min_t(unsigned int, drive->hwif->nleft, drive->mult_count);
+	while (nsect--)
+		ide_pio_sector(drive, rq, write);
+}
+
+static void ide_pio_datablock(ide_drive_t *drive, struct request *rq,
+				     unsigned int write)
+{
+	u8 saved_io_32bit = drive->io_32bit;
+
+	if (rq->bio)	/* fs request */
+		rq->errors = 0;
+
+	if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) {
+		ide_task_t *task = rq->special;
+
+		if (task->tf_flags & IDE_TFLAG_IO_16BIT)
+			drive->io_32bit = 0;
+	}
+
+	touch_softlockup_watchdog();
+
+	switch (drive->hwif->data_phase) {
+	case TASKFILE_MULTI_IN:
+	case TASKFILE_MULTI_OUT:
+		ide_pio_multi(drive, rq, write);
+		break;
+	default:
+		ide_pio_sector(drive, rq, write);
+		break;
+	}
+
+	drive->io_32bit = saved_io_32bit;
+}
+
+static ide_startstop_t task_error(ide_drive_t *drive, struct request *rq,
+				  const char *s, u8 stat)
+{
+	if (rq->bio) {
+		ide_hwif_t *hwif = drive->hwif;
+		int sectors = hwif->nsect - hwif->nleft;
+
+		switch (hwif->data_phase) {
+		case TASKFILE_IN:
+			if (hwif->nleft)
+				break;
+			/* fall through */
+		case TASKFILE_OUT:
+			sectors--;
+			break;
+		case TASKFILE_MULTI_IN:
+			if (hwif->nleft)
+				break;
+			/* fall through */
+		case TASKFILE_MULTI_OUT:
+			sectors -= drive->mult_count;
+		default:
+			break;
+		}
+
+		if (sectors > 0) {
+			ide_driver_t *drv;
+
+			drv = *(ide_driver_t **)rq->rq_disk->private_data;
+			drv->end_request(drive, 1, sectors);
+		}
+	}
+	return ide_error(drive, s, stat);
+}
+
+void task_end_request(ide_drive_t *drive, struct request *rq, u8 stat)
+{
+	if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) {
+		u8 err = ide_read_error(drive);
+
+		ide_end_drive_cmd(drive, stat, err);
+		return;
+	}
+
+	if (rq->rq_disk) {
+		ide_driver_t *drv;
+
+		drv = *(ide_driver_t **)rq->rq_disk->private_data;;
+		drv->end_request(drive, 1, rq->nr_sectors);
+	} else
+		ide_end_request(drive, 1, rq->nr_sectors);
+}
+
+/*
+ * We got an interrupt on a task_in case, but no errors and no DRQ.
+ *
+ * It might be a spurious irq (shared irq), but it might be a
+ * command that had no output.
+ */
+static ide_startstop_t task_in_unexpected(ide_drive_t *drive, struct request *rq, u8 stat)
+{
+	/* Command all done? */
+	if (OK_STAT(stat, ATA_DRDY, ATA_BUSY)) {
+		task_end_request(drive, rq, stat);
+		return ide_stopped;
+	}
+
+	/* Assume it was a spurious irq */
+	ide_set_handler(drive, &task_in_intr, WAIT_WORSTCASE, NULL);
+	return ide_started;
+}
+
+/*
+ * Handler for command with PIO data-in phase (Read/Read Multiple).
+ */
+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->tp_ops->read_status(hwif);
+
+	/* Error? */
+	if (stat & ATA_ERR)
+		return task_error(drive, rq, __func__, stat);
+
+	/* Didn't want any data? Odd. */
+	if ((stat & ATA_DRQ) == 0)
+		return task_in_unexpected(drive, rq, stat);
+
+	ide_pio_datablock(drive, rq, 0);
+
+	/* Are we done? Check status and finish transfer. */
+	if (!hwif->nleft) {
+		stat = wait_drive_not_busy(drive);
+		if (!OK_STAT(stat, 0, BAD_STAT))
+			return task_error(drive, rq, __func__, stat);
+		task_end_request(drive, rq, stat);
+		return ide_stopped;
+	}
+
+	/* Still data left to transfer. */
+	ide_set_handler(drive, &task_in_intr, WAIT_WORSTCASE, NULL);
+
+	return ide_started;
+}
+
+/*
+ * Handler for command with PIO data-out phase (Write/Write Multiple).
+ */
+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->tp_ops->read_status(hwif);
+
+	if (!OK_STAT(stat, DRIVE_READY, drive->bad_wstat))
+		return task_error(drive, rq, __func__, stat);
+
+	/* Deal with unexpected ATA data phase. */
+	if (((stat & ATA_DRQ) == 0) ^ !hwif->nleft)
+		return task_error(drive, rq, __func__, stat);
+
+	if (!hwif->nleft) {
+		task_end_request(drive, rq, stat);
+		return ide_stopped;
+	}
+
+	/* Still data left to transfer. */
+	ide_pio_datablock(drive, rq, 1);
+	ide_set_handler(drive, &task_out_intr, WAIT_WORSTCASE, NULL);
+
+	return ide_started;
+}
+
+static ide_startstop_t pre_task_out_intr(ide_drive_t *drive, struct request *rq)
+{
+	ide_startstop_t startstop;
+
+	if (ide_wait_stat(&startstop, drive, ATA_DRQ,
+			  drive->bad_wstat, WAIT_DRQ)) {
+		printk(KERN_ERR "%s: no DRQ after issuing %sWRITE%s\n",
+			drive->name, drive->hwif->data_phase ? "MULT" : "",
+			(drive->dev_flags & IDE_DFLAG_LBA48) ? "_EXT" : "");
+		return startstop;
+	}
+
+	if ((drive->dev_flags & IDE_DFLAG_UNMASK) == 0)
+		local_irq_disable();
+
+	ide_set_handler(drive, &task_out_intr, WAIT_WORSTCASE, NULL);
+	ide_pio_datablock(drive, rq, 1);
+
+	return ide_started;
+}
+
+int ide_raw_taskfile(ide_drive_t *drive, ide_task_t *task, u8 *buf, u16 nsect)
+{
+	struct request *rq;
+	int error;
+
+	rq = blk_get_request(drive->queue, READ, __GFP_WAIT);
+	rq->cmd_type = REQ_TYPE_ATA_TASKFILE;
+	rq->buffer = buf;
+
+	/*
+	 * (ks) We transfer currently only whole sectors.
+	 * This is suffient for now.  But, it would be great,
+	 * if we would find a solution to transfer any size.
+	 * To support special commands like READ LONG.
+	 */
+	rq->hard_nr_sectors = rq->nr_sectors = nsect;
+	rq->hard_cur_sectors = rq->current_nr_sectors = nsect;
+
+	if (task->tf_flags & IDE_TFLAG_WRITE)
+		rq->cmd_flags |= REQ_RW;
+
+	rq->special = task;
+	task->rq = rq;
+
+	error = blk_execute_rq(drive->queue, NULL, rq, 0);
+	blk_put_request(rq);
+
+	return error;
+}
+
+EXPORT_SYMBOL(ide_raw_taskfile);
+
+int ide_no_data_taskfile(ide_drive_t *drive, ide_task_t *task)
+{
+	task->data_phase = TASKFILE_NO_DATA;
+
+	return ide_raw_taskfile(drive, task, NULL, 0);
+}
+EXPORT_SYMBOL_GPL(ide_no_data_taskfile);
+
+#ifdef CONFIG_IDE_TASK_IOCTL
+int ide_taskfile_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg)
+{
+	ide_task_request_t	*req_task;
+	ide_task_t		args;
+	u8 *outbuf		= NULL;
+	u8 *inbuf		= NULL;
+	u8 *data_buf		= NULL;
+	int err			= 0;
+	int tasksize		= sizeof(struct ide_task_request_s);
+	unsigned int taskin	= 0;
+	unsigned int taskout	= 0;
+	u16 nsect		= 0;
+	char __user *buf = (char __user *)arg;
+
+//	printk("IDE Taskfile ...\n");
+
+	req_task = kzalloc(tasksize, GFP_KERNEL);
+	if (req_task == NULL) return -ENOMEM;
+	if (copy_from_user(req_task, buf, tasksize)) {
+		kfree(req_task);
+		return -EFAULT;
+	}
+
+	taskout = req_task->out_size;
+	taskin  = req_task->in_size;
+	
+	if (taskin > 65536 || taskout > 65536) {
+		err = -EINVAL;
+		goto abort;
+	}
+
+	if (taskout) {
+		int outtotal = tasksize;
+		outbuf = kzalloc(taskout, GFP_KERNEL);
+		if (outbuf == NULL) {
+			err = -ENOMEM;
+			goto abort;
+		}
+		if (copy_from_user(outbuf, buf + outtotal, taskout)) {
+			err = -EFAULT;
+			goto abort;
+		}
+	}
+
+	if (taskin) {
+		int intotal = tasksize + taskout;
+		inbuf = kzalloc(taskin, GFP_KERNEL);
+		if (inbuf == NULL) {
+			err = -ENOMEM;
+			goto abort;
+		}
+		if (copy_from_user(inbuf, buf + intotal, taskin)) {
+			err = -EFAULT;
+			goto abort;
+		}
+	}
+
+	memset(&args, 0, sizeof(ide_task_t));
+
+	memcpy(&args.tf_array[0], req_task->hob_ports, HDIO_DRIVE_HOB_HDR_SIZE - 2);
+	memcpy(&args.tf_array[6], req_task->io_ports, HDIO_DRIVE_TASK_HDR_SIZE);
+
+	args.data_phase = req_task->data_phase;
+
+	args.tf_flags = IDE_TFLAG_IO_16BIT | IDE_TFLAG_DEVICE |
+			IDE_TFLAG_IN_TF;
+	if (drive->dev_flags & IDE_DFLAG_LBA48)
+		args.tf_flags |= (IDE_TFLAG_LBA48 | IDE_TFLAG_IN_HOB);
+
+	if (req_task->out_flags.all) {
+		args.tf_flags |= IDE_TFLAG_FLAGGED;
+
+		if (req_task->out_flags.b.data)
+			args.tf_flags |= IDE_TFLAG_OUT_DATA;
+
+		if (req_task->out_flags.b.nsector_hob)
+			args.tf_flags |= IDE_TFLAG_OUT_HOB_NSECT;
+		if (req_task->out_flags.b.sector_hob)
+			args.tf_flags |= IDE_TFLAG_OUT_HOB_LBAL;
+		if (req_task->out_flags.b.lcyl_hob)
+			args.tf_flags |= IDE_TFLAG_OUT_HOB_LBAM;
+		if (req_task->out_flags.b.hcyl_hob)
+			args.tf_flags |= IDE_TFLAG_OUT_HOB_LBAH;
+
+		if (req_task->out_flags.b.error_feature)
+			args.tf_flags |= IDE_TFLAG_OUT_FEATURE;
+		if (req_task->out_flags.b.nsector)
+			args.tf_flags |= IDE_TFLAG_OUT_NSECT;
+		if (req_task->out_flags.b.sector)
+			args.tf_flags |= IDE_TFLAG_OUT_LBAL;
+		if (req_task->out_flags.b.lcyl)
+			args.tf_flags |= IDE_TFLAG_OUT_LBAM;
+		if (req_task->out_flags.b.hcyl)
+			args.tf_flags |= IDE_TFLAG_OUT_LBAH;
+	} else {
+		args.tf_flags |= IDE_TFLAG_OUT_TF;
+		if (args.tf_flags & IDE_TFLAG_LBA48)
+			args.tf_flags |= IDE_TFLAG_OUT_HOB;
+	}
+
+	if (req_task->in_flags.b.data)
+		args.tf_flags |= IDE_TFLAG_IN_DATA;
+
+	switch(req_task->data_phase) {
+		case TASKFILE_MULTI_OUT:
+			if (!drive->mult_count) {
+				/* (hs): give up if multcount is not set */
+				printk(KERN_ERR "%s: %s Multimode Write " \
+					"multcount is not set\n",
+					drive->name, __func__);
+				err = -EPERM;
+				goto abort;
+			}
+			/* fall through */
+		case TASKFILE_OUT:
+			/* fall through */
+		case TASKFILE_OUT_DMAQ:
+		case TASKFILE_OUT_DMA:
+			nsect = taskout / SECTOR_SIZE;
+			data_buf = outbuf;
+			break;
+		case TASKFILE_MULTI_IN:
+			if (!drive->mult_count) {
+				/* (hs): give up if multcount is not set */
+				printk(KERN_ERR "%s: %s Multimode Read failure " \
+					"multcount is not set\n",
+					drive->name, __func__);
+				err = -EPERM;
+				goto abort;
+			}
+			/* fall through */
+		case TASKFILE_IN:
+			/* fall through */
+		case TASKFILE_IN_DMAQ:
+		case TASKFILE_IN_DMA:
+			nsect = taskin / SECTOR_SIZE;
+			data_buf = inbuf;
+			break;
+		case TASKFILE_NO_DATA:
+			break;
+		default:
+			err = -EFAULT;
+			goto abort;
+	}
+
+	if (req_task->req_cmd == IDE_DRIVE_TASK_NO_DATA)
+		nsect = 0;
+	else if (!nsect) {
+		nsect = (args.tf.hob_nsect << 8) | args.tf.nsect;
+
+		if (!nsect) {
+			printk(KERN_ERR "%s: in/out command without data\n",
+					drive->name);
+			err = -EFAULT;
+			goto abort;
+		}
+	}
+
+	if (req_task->req_cmd == IDE_DRIVE_TASK_RAW_WRITE)
+		args.tf_flags |= IDE_TFLAG_WRITE;
+
+	err = ide_raw_taskfile(drive, &args, data_buf, nsect);
+
+	memcpy(req_task->hob_ports, &args.tf_array[0], HDIO_DRIVE_HOB_HDR_SIZE - 2);
+	memcpy(req_task->io_ports, &args.tf_array[6], HDIO_DRIVE_TASK_HDR_SIZE);
+
+	if ((args.tf_flags & IDE_TFLAG_FLAGGED_SET_IN_FLAGS) &&
+	    req_task->in_flags.all == 0) {
+		req_task->in_flags.all = IDE_TASKFILE_STD_IN_FLAGS;
+		if (drive->dev_flags & IDE_DFLAG_LBA48)
+			req_task->in_flags.all |= (IDE_HOB_STD_IN_FLAGS << 8);
+	}
+
+	if (copy_to_user(buf, req_task, tasksize)) {
+		err = -EFAULT;
+		goto abort;
+	}
+	if (taskout) {
+		int outtotal = tasksize;
+		if (copy_to_user(buf + outtotal, outbuf, taskout)) {
+			err = -EFAULT;
+			goto abort;
+		}
+	}
+	if (taskin) {
+		int intotal = tasksize + taskout;
+		if (copy_to_user(buf + intotal, inbuf, taskin)) {
+			err = -EFAULT;
+			goto abort;
+		}
+	}
+abort:
+	kfree(req_task);
+	kfree(outbuf);
+	kfree(inbuf);
+
+//	printk("IDE Taskfile ioctl ended. rc = %i\n", err);
+
+	return err;
+}
+#endif