2 * Copyright (C) 2000-2002 Michael Cornwell <cornwell@acm.org>
3 * Copyright (C) 2000-2002 Andre Hedrick <andre@linux-ide.org>
4 * Copyright (C) 2001-2002 Klaus Smolin
5 * IBM Storage Technology Division
6 * Copyright (C) 2003-2004, 2007 Bartlomiej Zolnierkiewicz
8 * The big the bad and the ugly.
11 #include <linux/module.h>
12 #include <linux/types.h>
13 #include <linux/string.h>
14 #include <linux/kernel.h>
15 #include <linux/timer.h>
17 #include <linux/sched.h>
18 #include <linux/interrupt.h>
19 #include <linux/major.h>
20 #include <linux/errno.h>
21 #include <linux/genhd.h>
22 #include <linux/blkpg.h>
23 #include <linux/slab.h>
24 #include <linux/pci.h>
25 #include <linux/delay.h>
26 #include <linux/hdreg.h>
27 #include <linux/ide.h>
28 #include <linux/bitops.h>
29 #include <linux/scatterlist.h>
31 #include <asm/byteorder.h>
33 #include <asm/uaccess.h>
36 void ide_tf_dump(const char *s
, struct ide_taskfile
*tf
)
39 printk("%s: tf: feat 0x%02x nsect 0x%02x lbal 0x%02x "
40 "lbam 0x%02x lbah 0x%02x dev 0x%02x cmd 0x%02x\n",
41 s
, tf
->feature
, tf
->nsect
, tf
->lbal
,
42 tf
->lbam
, tf
->lbah
, tf
->device
, tf
->command
);
43 printk("%s: hob: nsect 0x%02x lbal 0x%02x "
44 "lbam 0x%02x lbah 0x%02x\n",
45 s
, tf
->hob_nsect
, tf
->hob_lbal
,
46 tf
->hob_lbam
, tf
->hob_lbah
);
50 int taskfile_lib_get_identify (ide_drive_t
*drive
, u8
*buf
)
54 memset(&args
, 0, sizeof(ide_task_t
));
56 if (drive
->media
== ide_disk
)
57 args
.tf
.command
= WIN_IDENTIFY
;
59 args
.tf
.command
= WIN_PIDENTIFY
;
60 args
.tf_flags
= IDE_TFLAG_TF
| IDE_TFLAG_DEVICE
;
61 args
.data_phase
= TASKFILE_IN
;
62 return ide_raw_taskfile(drive
, &args
, buf
, 1);
65 static int inline task_dma_ok(ide_task_t
*task
)
67 if (blk_fs_request(task
->rq
) || (task
->tf_flags
& IDE_TFLAG_FLAGGED
))
70 switch (task
->tf
.command
) {
71 case WIN_WRITEDMA_ONCE
:
73 case WIN_WRITEDMA_EXT
:
74 case WIN_READDMA_ONCE
:
77 case WIN_IDENTIFY_DMA
:
84 static ide_startstop_t
task_no_data_intr(ide_drive_t
*);
85 static ide_startstop_t
set_geometry_intr(ide_drive_t
*);
86 static ide_startstop_t
recal_intr(ide_drive_t
*);
87 static ide_startstop_t
set_multmode_intr(ide_drive_t
*);
88 static ide_startstop_t
pre_task_out_intr(ide_drive_t
*, struct request
*);
89 static ide_startstop_t
task_in_intr(ide_drive_t
*);
91 ide_startstop_t
do_rw_taskfile (ide_drive_t
*drive
, ide_task_t
*task
)
93 ide_hwif_t
*hwif
= HWIF(drive
);
94 struct ide_taskfile
*tf
= &task
->tf
;
95 ide_handler_t
*handler
= NULL
;
96 const struct ide_dma_ops
*dma_ops
= hwif
->dma_ops
;
98 if (task
->data_phase
== TASKFILE_MULTI_IN
||
99 task
->data_phase
== TASKFILE_MULTI_OUT
) {
100 if (!drive
->mult_count
) {
101 printk(KERN_ERR
"%s: multimode not set!\n",
107 if (task
->tf_flags
& IDE_TFLAG_FLAGGED
)
108 task
->tf_flags
|= IDE_TFLAG_FLAGGED_SET_IN_FLAGS
;
110 if ((task
->tf_flags
& IDE_TFLAG_DMA_PIO_FALLBACK
) == 0) {
111 ide_tf_dump(drive
->name
, tf
);
112 hwif
->tf_load(drive
, task
);
115 switch (task
->data_phase
) {
116 case TASKFILE_MULTI_OUT
:
118 hwif
->OUTBSYNC(drive
, tf
->command
, hwif
->io_ports
.command_addr
);
119 ndelay(400); /* FIXME */
120 return pre_task_out_intr(drive
, task
->rq
);
121 case TASKFILE_MULTI_IN
:
123 handler
= task_in_intr
;
125 case TASKFILE_NO_DATA
:
127 handler
= task_no_data_intr
;
128 /* WIN_{SPECIFY,RESTORE,SETMULT} use custom handlers */
129 if (task
->tf_flags
& IDE_TFLAG_CUSTOM_HANDLER
) {
130 switch (tf
->command
) {
131 case WIN_SPECIFY
: handler
= set_geometry_intr
; break;
132 case WIN_RESTORE
: handler
= recal_intr
; break;
133 case WIN_SETMULT
: handler
= set_multmode_intr
; break;
136 ide_execute_command(drive
, tf
->command
, handler
,
137 WAIT_WORSTCASE
, NULL
);
140 if (task_dma_ok(task
) == 0 || drive
->using_dma
== 0 ||
141 dma_ops
->dma_setup(drive
))
143 dma_ops
->dma_exec_cmd(drive
, tf
->command
);
144 dma_ops
->dma_start(drive
);
148 EXPORT_SYMBOL_GPL(do_rw_taskfile
);
151 * set_multmode_intr() is invoked on completion of a WIN_SETMULT cmd.
153 static ide_startstop_t
set_multmode_intr(ide_drive_t
*drive
)
155 u8 stat
= ide_read_status(drive
);
157 if (OK_STAT(stat
, READY_STAT
, BAD_STAT
))
158 drive
->mult_count
= drive
->mult_req
;
160 drive
->mult_req
= drive
->mult_count
= 0;
161 drive
->special
.b
.recalibrate
= 1;
162 (void) ide_dump_status(drive
, "set_multmode", stat
);
168 * set_geometry_intr() is invoked on completion of a WIN_SPECIFY cmd.
170 static ide_startstop_t
set_geometry_intr(ide_drive_t
*drive
)
175 while (((stat
= ide_read_status(drive
)) & BUSY_STAT
) && retries
--)
178 if (OK_STAT(stat
, READY_STAT
, BAD_STAT
))
181 if (stat
& (ERR_STAT
|DRQ_STAT
))
182 return ide_error(drive
, "set_geometry_intr", stat
);
184 BUG_ON(HWGROUP(drive
)->handler
!= NULL
);
185 ide_set_handler(drive
, &set_geometry_intr
, WAIT_WORSTCASE
, NULL
);
190 * recal_intr() is invoked on completion of a WIN_RESTORE (recalibrate) cmd.
192 static ide_startstop_t
recal_intr(ide_drive_t
*drive
)
194 u8 stat
= ide_read_status(drive
);
196 if (!OK_STAT(stat
, READY_STAT
, BAD_STAT
))
197 return ide_error(drive
, "recal_intr", stat
);
202 * Handler for commands without a data phase
204 static ide_startstop_t
task_no_data_intr(ide_drive_t
*drive
)
206 ide_task_t
*args
= HWGROUP(drive
)->rq
->special
;
209 local_irq_enable_in_hardirq();
210 stat
= ide_read_status(drive
);
212 if (!OK_STAT(stat
, READY_STAT
, BAD_STAT
))
213 return ide_error(drive
, "task_no_data_intr", stat
);
214 /* calls ide_end_drive_cmd */
217 ide_end_drive_cmd(drive
, stat
, ide_read_error(drive
));
222 static u8
wait_drive_not_busy(ide_drive_t
*drive
)
228 * Last sector was transfered, wait until drive is ready.
229 * This can take up to 10 usec, but we will wait max 1 ms.
231 for (retries
= 0; retries
< 100; retries
++) {
232 stat
= ide_read_status(drive
);
234 if (stat
& BUSY_STAT
)
240 if (stat
& BUSY_STAT
)
241 printk(KERN_ERR
"%s: drive still BUSY!\n", drive
->name
);
246 static void ide_pio_sector(ide_drive_t
*drive
, struct request
*rq
,
249 ide_hwif_t
*hwif
= drive
->hwif
;
250 struct scatterlist
*sg
= hwif
->sg_table
;
251 struct scatterlist
*cursg
= hwif
->cursg
;
253 #ifdef CONFIG_HIGHMEM
265 page
= sg_page(cursg
);
266 offset
= cursg
->offset
+ hwif
->cursg_ofs
* SECTOR_SIZE
;
268 /* get the current page and offset */
269 page
= nth_page(page
, (offset
>> PAGE_SHIFT
));
272 #ifdef CONFIG_HIGHMEM
273 local_irq_save(flags
);
275 buf
= kmap_atomic(page
, KM_BIO_SRC_IRQ
) + offset
;
280 if ((hwif
->cursg_ofs
* SECTOR_SIZE
) == cursg
->length
) {
281 hwif
->cursg
= sg_next(hwif
->cursg
);
285 /* do the actual data transfer */
287 hwif
->output_data(drive
, rq
, buf
, SECTOR_SIZE
);
289 hwif
->input_data(drive
, rq
, buf
, SECTOR_SIZE
);
291 kunmap_atomic(buf
, KM_BIO_SRC_IRQ
);
292 #ifdef CONFIG_HIGHMEM
293 local_irq_restore(flags
);
297 static void ide_pio_multi(ide_drive_t
*drive
, struct request
*rq
,
302 nsect
= min_t(unsigned int, drive
->hwif
->nleft
, drive
->mult_count
);
304 ide_pio_sector(drive
, rq
, write
);
307 static void ide_pio_datablock(ide_drive_t
*drive
, struct request
*rq
,
310 u8 saved_io_32bit
= drive
->io_32bit
;
312 if (rq
->bio
) /* fs request */
315 if (rq
->cmd_type
== REQ_TYPE_ATA_TASKFILE
) {
316 ide_task_t
*task
= rq
->special
;
318 if (task
->tf_flags
& IDE_TFLAG_IO_16BIT
)
322 touch_softlockup_watchdog();
324 switch (drive
->hwif
->data_phase
) {
325 case TASKFILE_MULTI_IN
:
326 case TASKFILE_MULTI_OUT
:
327 ide_pio_multi(drive
, rq
, write
);
330 ide_pio_sector(drive
, rq
, write
);
334 drive
->io_32bit
= saved_io_32bit
;
337 static ide_startstop_t
task_error(ide_drive_t
*drive
, struct request
*rq
,
338 const char *s
, u8 stat
)
341 ide_hwif_t
*hwif
= drive
->hwif
;
342 int sectors
= hwif
->nsect
- hwif
->nleft
;
344 switch (hwif
->data_phase
) {
352 case TASKFILE_MULTI_IN
:
356 case TASKFILE_MULTI_OUT
:
357 sectors
-= drive
->mult_count
;
365 drv
= *(ide_driver_t
**)rq
->rq_disk
->private_data
;
366 drv
->end_request(drive
, 1, sectors
);
369 return ide_error(drive
, s
, stat
);
372 void task_end_request(ide_drive_t
*drive
, struct request
*rq
, u8 stat
)
374 if (rq
->cmd_type
== REQ_TYPE_ATA_TASKFILE
) {
375 u8 err
= ide_read_error(drive
);
377 ide_end_drive_cmd(drive
, stat
, err
);
384 drv
= *(ide_driver_t
**)rq
->rq_disk
->private_data
;;
385 drv
->end_request(drive
, 1, rq
->nr_sectors
);
387 ide_end_request(drive
, 1, rq
->nr_sectors
);
391 * We got an interrupt on a task_in case, but no errors and no DRQ.
393 * It might be a spurious irq (shared irq), but it might be a
394 * command that had no output.
396 static ide_startstop_t
task_in_unexpected(ide_drive_t
*drive
, struct request
*rq
, u8 stat
)
398 /* Command all done? */
399 if (OK_STAT(stat
, READY_STAT
, BUSY_STAT
)) {
400 task_end_request(drive
, rq
, stat
);
404 /* Assume it was a spurious irq */
405 ide_set_handler(drive
, &task_in_intr
, WAIT_WORSTCASE
, NULL
);
410 * Handler for command with PIO data-in phase (Read/Read Multiple).
412 static ide_startstop_t
task_in_intr(ide_drive_t
*drive
)
414 ide_hwif_t
*hwif
= drive
->hwif
;
415 struct request
*rq
= HWGROUP(drive
)->rq
;
416 u8 stat
= ide_read_status(drive
);
420 return task_error(drive
, rq
, __func__
, stat
);
422 /* Didn't want any data? Odd. */
423 if (!(stat
& DRQ_STAT
))
424 return task_in_unexpected(drive
, rq
, stat
);
426 ide_pio_datablock(drive
, rq
, 0);
428 /* Are we done? Check status and finish transfer. */
430 stat
= wait_drive_not_busy(drive
);
431 if (!OK_STAT(stat
, 0, BAD_STAT
))
432 return task_error(drive
, rq
, __func__
, stat
);
433 task_end_request(drive
, rq
, stat
);
437 /* Still data left to transfer. */
438 ide_set_handler(drive
, &task_in_intr
, WAIT_WORSTCASE
, NULL
);
444 * Handler for command with PIO data-out phase (Write/Write Multiple).
446 static ide_startstop_t
task_out_intr (ide_drive_t
*drive
)
448 ide_hwif_t
*hwif
= drive
->hwif
;
449 struct request
*rq
= HWGROUP(drive
)->rq
;
450 u8 stat
= ide_read_status(drive
);
452 if (!OK_STAT(stat
, DRIVE_READY
, drive
->bad_wstat
))
453 return task_error(drive
, rq
, __func__
, stat
);
455 /* Deal with unexpected ATA data phase. */
456 if (((stat
& DRQ_STAT
) == 0) ^ !hwif
->nleft
)
457 return task_error(drive
, rq
, __func__
, stat
);
460 task_end_request(drive
, rq
, stat
);
464 /* Still data left to transfer. */
465 ide_pio_datablock(drive
, rq
, 1);
466 ide_set_handler(drive
, &task_out_intr
, WAIT_WORSTCASE
, NULL
);
471 static ide_startstop_t
pre_task_out_intr(ide_drive_t
*drive
, struct request
*rq
)
473 ide_startstop_t startstop
;
475 if (ide_wait_stat(&startstop
, drive
, DRQ_STAT
,
476 drive
->bad_wstat
, WAIT_DRQ
)) {
477 printk(KERN_ERR
"%s: no DRQ after issuing %sWRITE%s\n",
479 drive
->hwif
->data_phase
? "MULT" : "",
480 drive
->addressing
? "_EXT" : "");
487 ide_set_handler(drive
, &task_out_intr
, WAIT_WORSTCASE
, NULL
);
488 ide_pio_datablock(drive
, rq
, 1);
493 int ide_raw_taskfile(ide_drive_t
*drive
, ide_task_t
*task
, u8
*buf
, u16 nsect
)
497 memset(&rq
, 0, sizeof(rq
));
499 rq
.cmd_type
= REQ_TYPE_ATA_TASKFILE
;
503 * (ks) We transfer currently only whole sectors.
504 * This is suffient for now. But, it would be great,
505 * if we would find a solution to transfer any size.
506 * To support special commands like READ LONG.
508 rq
.hard_nr_sectors
= rq
.nr_sectors
= nsect
;
509 rq
.hard_cur_sectors
= rq
.current_nr_sectors
= nsect
;
511 if (task
->tf_flags
& IDE_TFLAG_WRITE
)
512 rq
.cmd_flags
|= REQ_RW
;
517 return ide_do_drive_cmd(drive
, &rq
, ide_wait
);
520 EXPORT_SYMBOL(ide_raw_taskfile
);
522 int ide_no_data_taskfile(ide_drive_t
*drive
, ide_task_t
*task
)
524 task
->data_phase
= TASKFILE_NO_DATA
;
526 return ide_raw_taskfile(drive
, task
, NULL
, 0);
528 EXPORT_SYMBOL_GPL(ide_no_data_taskfile
);
530 #ifdef CONFIG_IDE_TASK_IOCTL
531 int ide_taskfile_ioctl (ide_drive_t
*drive
, unsigned int cmd
, unsigned long arg
)
533 ide_task_request_t
*req_task
;
539 int tasksize
= sizeof(struct ide_task_request_s
);
540 unsigned int taskin
= 0;
541 unsigned int taskout
= 0;
543 char __user
*buf
= (char __user
*)arg
;
545 // printk("IDE Taskfile ...\n");
547 req_task
= kzalloc(tasksize
, GFP_KERNEL
);
548 if (req_task
== NULL
) return -ENOMEM
;
549 if (copy_from_user(req_task
, buf
, tasksize
)) {
554 taskout
= req_task
->out_size
;
555 taskin
= req_task
->in_size
;
557 if (taskin
> 65536 || taskout
> 65536) {
563 int outtotal
= tasksize
;
564 outbuf
= kzalloc(taskout
, GFP_KERNEL
);
565 if (outbuf
== NULL
) {
569 if (copy_from_user(outbuf
, buf
+ outtotal
, taskout
)) {
576 int intotal
= tasksize
+ taskout
;
577 inbuf
= kzalloc(taskin
, GFP_KERNEL
);
582 if (copy_from_user(inbuf
, buf
+ intotal
, taskin
)) {
588 memset(&args
, 0, sizeof(ide_task_t
));
590 memcpy(&args
.tf_array
[0], req_task
->hob_ports
, HDIO_DRIVE_HOB_HDR_SIZE
- 2);
591 memcpy(&args
.tf_array
[6], req_task
->io_ports
, HDIO_DRIVE_TASK_HDR_SIZE
);
593 args
.data_phase
= req_task
->data_phase
;
595 args
.tf_flags
= IDE_TFLAG_IO_16BIT
| IDE_TFLAG_DEVICE
|
597 if (drive
->addressing
== 1)
598 args
.tf_flags
|= (IDE_TFLAG_LBA48
| IDE_TFLAG_IN_HOB
);
600 if (req_task
->out_flags
.all
) {
601 args
.tf_flags
|= IDE_TFLAG_FLAGGED
;
603 if (req_task
->out_flags
.b
.data
)
604 args
.tf_flags
|= IDE_TFLAG_OUT_DATA
;
606 if (req_task
->out_flags
.b
.nsector_hob
)
607 args
.tf_flags
|= IDE_TFLAG_OUT_HOB_NSECT
;
608 if (req_task
->out_flags
.b
.sector_hob
)
609 args
.tf_flags
|= IDE_TFLAG_OUT_HOB_LBAL
;
610 if (req_task
->out_flags
.b
.lcyl_hob
)
611 args
.tf_flags
|= IDE_TFLAG_OUT_HOB_LBAM
;
612 if (req_task
->out_flags
.b
.hcyl_hob
)
613 args
.tf_flags
|= IDE_TFLAG_OUT_HOB_LBAH
;
615 if (req_task
->out_flags
.b
.error_feature
)
616 args
.tf_flags
|= IDE_TFLAG_OUT_FEATURE
;
617 if (req_task
->out_flags
.b
.nsector
)
618 args
.tf_flags
|= IDE_TFLAG_OUT_NSECT
;
619 if (req_task
->out_flags
.b
.sector
)
620 args
.tf_flags
|= IDE_TFLAG_OUT_LBAL
;
621 if (req_task
->out_flags
.b
.lcyl
)
622 args
.tf_flags
|= IDE_TFLAG_OUT_LBAM
;
623 if (req_task
->out_flags
.b
.hcyl
)
624 args
.tf_flags
|= IDE_TFLAG_OUT_LBAH
;
626 args
.tf_flags
|= IDE_TFLAG_OUT_TF
;
627 if (args
.tf_flags
& IDE_TFLAG_LBA48
)
628 args
.tf_flags
|= IDE_TFLAG_OUT_HOB
;
631 if (req_task
->in_flags
.b
.data
)
632 args
.tf_flags
|= IDE_TFLAG_IN_DATA
;
634 switch(req_task
->data_phase
) {
635 case TASKFILE_MULTI_OUT
:
636 if (!drive
->mult_count
) {
637 /* (hs): give up if multcount is not set */
638 printk(KERN_ERR
"%s: %s Multimode Write " \
639 "multcount is not set\n",
640 drive
->name
, __func__
);
647 case TASKFILE_OUT_DMAQ
:
648 case TASKFILE_OUT_DMA
:
649 nsect
= taskout
/ SECTOR_SIZE
;
652 case TASKFILE_MULTI_IN
:
653 if (!drive
->mult_count
) {
654 /* (hs): give up if multcount is not set */
655 printk(KERN_ERR
"%s: %s Multimode Read failure " \
656 "multcount is not set\n",
657 drive
->name
, __func__
);
664 case TASKFILE_IN_DMAQ
:
665 case TASKFILE_IN_DMA
:
666 nsect
= taskin
/ SECTOR_SIZE
;
669 case TASKFILE_NO_DATA
:
676 if (req_task
->req_cmd
== IDE_DRIVE_TASK_NO_DATA
)
679 nsect
= (args
.tf
.hob_nsect
<< 8) | args
.tf
.nsect
;
682 printk(KERN_ERR
"%s: in/out command without data\n",
689 if (req_task
->req_cmd
== IDE_DRIVE_TASK_RAW_WRITE
)
690 args
.tf_flags
|= IDE_TFLAG_WRITE
;
692 err
= ide_raw_taskfile(drive
, &args
, data_buf
, nsect
);
694 memcpy(req_task
->hob_ports
, &args
.tf_array
[0], HDIO_DRIVE_HOB_HDR_SIZE
- 2);
695 memcpy(req_task
->io_ports
, &args
.tf_array
[6], HDIO_DRIVE_TASK_HDR_SIZE
);
697 if ((args
.tf_flags
& IDE_TFLAG_FLAGGED_SET_IN_FLAGS
) &&
698 req_task
->in_flags
.all
== 0) {
699 req_task
->in_flags
.all
= IDE_TASKFILE_STD_IN_FLAGS
;
700 if (drive
->addressing
== 1)
701 req_task
->in_flags
.all
|= (IDE_HOB_STD_IN_FLAGS
<< 8);
704 if (copy_to_user(buf
, req_task
, tasksize
)) {
709 int outtotal
= tasksize
;
710 if (copy_to_user(buf
+ outtotal
, outbuf
, taskout
)) {
716 int intotal
= tasksize
+ taskout
;
717 if (copy_to_user(buf
+ intotal
, inbuf
, taskin
)) {
727 // printk("IDE Taskfile ioctl ended. rc = %i\n", err);
733 int ide_cmd_ioctl (ide_drive_t
*drive
, unsigned int cmd
, unsigned long arg
)
736 int bufsize
= 0, err
= 0;
737 u8 args
[4], xfer_rate
= 0;
739 struct ide_taskfile
*tf
= &tfargs
.tf
;
740 struct hd_driveid
*id
= drive
->id
;
742 if (NULL
== (void *) arg
) {
745 ide_init_drive_cmd(&rq
);
746 rq
.cmd_type
= REQ_TYPE_ATA_TASKFILE
;
748 return ide_do_drive_cmd(drive
, &rq
, ide_wait
);
751 if (copy_from_user(args
, (void __user
*)arg
, 4))
754 memset(&tfargs
, 0, sizeof(ide_task_t
));
755 tf
->feature
= args
[2];
756 if (args
[0] == WIN_SMART
) {
761 tfargs
.tf_flags
= IDE_TFLAG_OUT_TF
| IDE_TFLAG_IN_NSECT
;
764 tfargs
.tf_flags
= IDE_TFLAG_OUT_FEATURE
|
765 IDE_TFLAG_OUT_NSECT
| IDE_TFLAG_IN_NSECT
;
767 tf
->command
= args
[0];
768 tfargs
.data_phase
= args
[3] ? TASKFILE_IN
: TASKFILE_NO_DATA
;
771 tfargs
.tf_flags
|= IDE_TFLAG_IO_16BIT
;
772 bufsize
= SECTOR_WORDS
* 4 * args
[3];
773 buf
= kzalloc(bufsize
, GFP_KERNEL
);
778 if (tf
->command
== WIN_SETFEATURES
&&
779 tf
->feature
== SETFEATURES_XFER
&&
780 tf
->nsect
>= XFER_SW_DMA_0
&&
781 (id
->dma_ultra
|| id
->dma_mword
|| id
->dma_1word
)) {
783 if (tf
->nsect
> XFER_UDMA_2
&& !eighty_ninty_three(drive
)) {
784 printk(KERN_WARNING
"%s: UDMA speeds >UDMA33 cannot "
785 "be set\n", drive
->name
);
790 err
= ide_raw_taskfile(drive
, &tfargs
, buf
, args
[3]);
792 args
[0] = tf
->status
;
796 if (!err
&& xfer_rate
) {
797 /* active-retuning-calls future */
798 ide_set_xfer_rate(drive
, xfer_rate
);
799 ide_driveid_update(drive
);
802 if (copy_to_user((void __user
*)arg
, &args
, 4))
805 if (copy_to_user((void __user
*)(arg
+ 4), buf
, bufsize
))
812 int ide_task_ioctl (ide_drive_t
*drive
, unsigned int cmd
, unsigned long arg
)
814 void __user
*p
= (void __user
*)arg
;
819 if (copy_from_user(args
, p
, 7))
822 memset(&task
, 0, sizeof(task
));
823 memcpy(&task
.tf_array
[7], &args
[1], 6);
824 task
.tf
.command
= args
[0];
825 task
.tf_flags
= IDE_TFLAG_TF
| IDE_TFLAG_DEVICE
;
827 err
= ide_no_data_taskfile(drive
, &task
);
829 args
[0] = task
.tf
.command
;
830 memcpy(&args
[1], &task
.tf_array
[7], 6);
832 if (copy_to_user(p
, args
, 7))