2 * linux/drivers/ide/ide-taskfile.c Version 0.38 March 05, 2003
4 * Copyright (C) 2000-2002 Michael Cornwell <cornwell@acm.org>
5 * Copyright (C) 2000-2002 Andre Hedrick <andre@linux-ide.org>
6 * Copyright (C) 2001-2002 Klaus Smolin
7 * IBM Storage Technology Division
8 * Copyright (C) 2003-2004 Bartlomiej Zolnierkiewicz
10 * The big the bad and the ugly.
13 #include <linux/module.h>
14 #include <linux/types.h>
15 #include <linux/string.h>
16 #include <linux/kernel.h>
17 #include <linux/timer.h>
19 #include <linux/sched.h>
20 #include <linux/interrupt.h>
21 #include <linux/major.h>
22 #include <linux/errno.h>
23 #include <linux/genhd.h>
24 #include <linux/blkpg.h>
25 #include <linux/slab.h>
26 #include <linux/pci.h>
27 #include <linux/delay.h>
28 #include <linux/hdreg.h>
29 #include <linux/ide.h>
30 #include <linux/bitops.h>
31 #include <linux/scatterlist.h>
33 #include <asm/byteorder.h>
35 #include <asm/uaccess.h>
38 static void ata_bswap_data (void *buffer
, int wcount
)
43 *p
= *p
<< 8 | *p
>> 8; p
++;
44 *p
= *p
<< 8 | *p
>> 8; p
++;
48 static void taskfile_input_data(ide_drive_t
*drive
, void *buffer
, u32 wcount
)
50 HWIF(drive
)->ata_input_data(drive
, buffer
, wcount
);
52 ata_bswap_data(buffer
, wcount
);
55 static void taskfile_output_data(ide_drive_t
*drive
, void *buffer
, u32 wcount
)
58 ata_bswap_data(buffer
, wcount
);
59 HWIF(drive
)->ata_output_data(drive
, buffer
, wcount
);
60 ata_bswap_data(buffer
, wcount
);
62 HWIF(drive
)->ata_output_data(drive
, buffer
, wcount
);
66 void ide_tf_load(ide_drive_t
*drive
, ide_task_t
*task
)
68 ide_hwif_t
*hwif
= drive
->hwif
;
69 struct ide_taskfile
*tf
= &task
->tf
;
70 u8 HIHI
= (task
->tf_flags
& IDE_TFLAG_LBA48
) ? 0xE0 : 0xEF;
72 if (task
->tf_flags
& IDE_TFLAG_FLAGGED
)
76 printk("%s: tf: feat 0x%02x nsect 0x%02x lbal 0x%02x "
77 "lbam 0x%02x lbah 0x%02x dev 0x%02x cmd 0x%02x\n",
78 drive
->name
, tf
->feature
, tf
->nsect
, tf
->lbal
,
79 tf
->lbam
, tf
->lbah
, tf
->device
, tf
->command
);
83 hwif
->OUTB(drive
->ctl
, IDE_CONTROL_REG
); /* clear nIEN */
85 if ((task
->tf_flags
& IDE_TFLAG_NO_SELECT_MASK
) == 0)
86 SELECT_MASK(drive
, 0);
88 if (task
->tf_flags
& IDE_TFLAG_OUT_DATA
)
89 hwif
->OUTW((tf
->hob_data
<< 8) | tf
->data
, IDE_DATA_REG
);
91 if (task
->tf_flags
& IDE_TFLAG_OUT_HOB_FEATURE
)
92 hwif
->OUTB(tf
->hob_feature
, IDE_FEATURE_REG
);
93 if (task
->tf_flags
& IDE_TFLAG_OUT_HOB_NSECT
)
94 hwif
->OUTB(tf
->hob_nsect
, IDE_NSECTOR_REG
);
95 if (task
->tf_flags
& IDE_TFLAG_OUT_HOB_LBAL
)
96 hwif
->OUTB(tf
->hob_lbal
, IDE_SECTOR_REG
);
97 if (task
->tf_flags
& IDE_TFLAG_OUT_HOB_LBAM
)
98 hwif
->OUTB(tf
->hob_lbam
, IDE_LCYL_REG
);
99 if (task
->tf_flags
& IDE_TFLAG_OUT_HOB_LBAH
)
100 hwif
->OUTB(tf
->hob_lbah
, IDE_HCYL_REG
);
102 if (task
->tf_flags
& IDE_TFLAG_OUT_FEATURE
)
103 hwif
->OUTB(tf
->feature
, IDE_FEATURE_REG
);
104 if (task
->tf_flags
& IDE_TFLAG_OUT_NSECT
)
105 hwif
->OUTB(tf
->nsect
, IDE_NSECTOR_REG
);
106 if (task
->tf_flags
& IDE_TFLAG_OUT_LBAL
)
107 hwif
->OUTB(tf
->lbal
, IDE_SECTOR_REG
);
108 if (task
->tf_flags
& IDE_TFLAG_OUT_LBAM
)
109 hwif
->OUTB(tf
->lbam
, IDE_LCYL_REG
);
110 if (task
->tf_flags
& IDE_TFLAG_OUT_LBAH
)
111 hwif
->OUTB(tf
->lbah
, IDE_HCYL_REG
);
113 if (task
->tf_flags
& IDE_TFLAG_OUT_DEVICE
)
114 hwif
->OUTB((tf
->device
& HIHI
) | drive
->select
.all
, IDE_SELECT_REG
);
117 int taskfile_lib_get_identify (ide_drive_t
*drive
, u8
*buf
)
121 memset(&args
, 0, sizeof(ide_task_t
));
122 args
.tf
.nsect
= 0x01;
123 if (drive
->media
== ide_disk
)
124 args
.tf
.command
= WIN_IDENTIFY
;
126 args
.tf
.command
= WIN_PIDENTIFY
;
127 args
.tf_flags
= IDE_TFLAG_OUT_TF
| IDE_TFLAG_OUT_DEVICE
;
128 args
.data_phase
= TASKFILE_IN
;
129 return ide_raw_taskfile(drive
, &args
, buf
, 1);
132 static int inline task_dma_ok(ide_task_t
*task
)
134 if (blk_fs_request(task
->rq
) || (task
->tf_flags
& IDE_TFLAG_FLAGGED
))
137 switch (task
->tf
.command
) {
138 case WIN_WRITEDMA_ONCE
:
140 case WIN_WRITEDMA_EXT
:
141 case WIN_READDMA_ONCE
:
143 case WIN_READDMA_EXT
:
144 case WIN_IDENTIFY_DMA
:
151 static ide_startstop_t
task_no_data_intr(ide_drive_t
*);
152 static ide_startstop_t
set_geometry_intr(ide_drive_t
*);
153 static ide_startstop_t
recal_intr(ide_drive_t
*);
154 static ide_startstop_t
set_multmode_intr(ide_drive_t
*);
155 static ide_startstop_t
pre_task_out_intr(ide_drive_t
*, struct request
*);
156 static ide_startstop_t
task_in_intr(ide_drive_t
*);
158 ide_startstop_t
do_rw_taskfile (ide_drive_t
*drive
, ide_task_t
*task
)
160 ide_hwif_t
*hwif
= HWIF(drive
);
161 struct ide_taskfile
*tf
= &task
->tf
;
162 ide_handler_t
*handler
= NULL
;
164 if (task
->data_phase
== TASKFILE_MULTI_IN
||
165 task
->data_phase
== TASKFILE_MULTI_OUT
) {
166 if (!drive
->mult_count
) {
167 printk(KERN_ERR
"%s: multimode not set!\n",
173 if (task
->tf_flags
& IDE_TFLAG_FLAGGED
)
174 task
->tf_flags
|= IDE_TFLAG_FLAGGED_SET_IN_FLAGS
;
176 if ((task
->tf_flags
& IDE_TFLAG_DMA_PIO_FALLBACK
) == 0)
177 ide_tf_load(drive
, task
);
179 switch (task
->data_phase
) {
180 case TASKFILE_MULTI_OUT
:
182 hwif
->OUTBSYNC(drive
, tf
->command
, IDE_COMMAND_REG
);
183 ndelay(400); /* FIXME */
184 return pre_task_out_intr(drive
, task
->rq
);
185 case TASKFILE_MULTI_IN
:
187 handler
= task_in_intr
;
189 case TASKFILE_NO_DATA
:
191 handler
= task_no_data_intr
;
192 /* WIN_{SPECIFY,RESTORE,SETMULT} use custom handlers */
193 if (task
->tf_flags
& IDE_TFLAG_CUSTOM_HANDLER
) {
194 switch (tf
->command
) {
195 case WIN_SPECIFY
: handler
= set_geometry_intr
; break;
196 case WIN_RESTORE
: handler
= recal_intr
; break;
197 case WIN_SETMULT
: handler
= set_multmode_intr
; break;
200 ide_execute_command(drive
, tf
->command
, handler
,
201 WAIT_WORSTCASE
, NULL
);
204 if (task_dma_ok(task
) == 0 || drive
->using_dma
== 0 ||
205 hwif
->dma_setup(drive
))
207 hwif
->dma_exec_cmd(drive
, tf
->command
);
208 hwif
->dma_start(drive
);
212 EXPORT_SYMBOL_GPL(do_rw_taskfile
);
215 * set_multmode_intr() is invoked on completion of a WIN_SETMULT cmd.
217 static ide_startstop_t
set_multmode_intr(ide_drive_t
*drive
)
219 ide_hwif_t
*hwif
= HWIF(drive
);
222 if (OK_STAT(stat
= hwif
->INB(IDE_STATUS_REG
),READY_STAT
,BAD_STAT
)) {
223 drive
->mult_count
= drive
->mult_req
;
225 drive
->mult_req
= drive
->mult_count
= 0;
226 drive
->special
.b
.recalibrate
= 1;
227 (void) ide_dump_status(drive
, "set_multmode", stat
);
233 * set_geometry_intr() is invoked on completion of a WIN_SPECIFY cmd.
235 static ide_startstop_t
set_geometry_intr(ide_drive_t
*drive
)
237 ide_hwif_t
*hwif
= HWIF(drive
);
241 while (((stat
= hwif
->INB(IDE_STATUS_REG
)) & BUSY_STAT
) && retries
--)
244 if (OK_STAT(stat
, READY_STAT
, BAD_STAT
))
247 if (stat
& (ERR_STAT
|DRQ_STAT
))
248 return ide_error(drive
, "set_geometry_intr", stat
);
250 BUG_ON(HWGROUP(drive
)->handler
!= NULL
);
251 ide_set_handler(drive
, &set_geometry_intr
, WAIT_WORSTCASE
, NULL
);
256 * recal_intr() is invoked on completion of a WIN_RESTORE (recalibrate) cmd.
258 static ide_startstop_t
recal_intr(ide_drive_t
*drive
)
260 ide_hwif_t
*hwif
= HWIF(drive
);
263 if (!OK_STAT(stat
= hwif
->INB(IDE_STATUS_REG
), READY_STAT
, BAD_STAT
))
264 return ide_error(drive
, "recal_intr", stat
);
269 * Handler for commands without a data phase
271 static ide_startstop_t
task_no_data_intr(ide_drive_t
*drive
)
273 ide_task_t
*args
= HWGROUP(drive
)->rq
->special
;
274 ide_hwif_t
*hwif
= HWIF(drive
);
277 local_irq_enable_in_hardirq();
278 if (!OK_STAT(stat
= hwif
->INB(IDE_STATUS_REG
),READY_STAT
,BAD_STAT
)) {
279 return ide_error(drive
, "task_no_data_intr", stat
);
280 /* calls ide_end_drive_cmd */
283 ide_end_drive_cmd(drive
, stat
, hwif
->INB(IDE_ERROR_REG
));
288 static u8
wait_drive_not_busy(ide_drive_t
*drive
)
290 ide_hwif_t
*hwif
= HWIF(drive
);
295 * Last sector was transfered, wait until drive is ready.
296 * This can take up to 10 usec, but we will wait max 1 ms
297 * (drive_cmd_intr() waits that long).
299 for (retries
= 0; retries
< 100; retries
++) {
300 if ((stat
= hwif
->INB(IDE_STATUS_REG
)) & BUSY_STAT
)
306 if (stat
& BUSY_STAT
)
307 printk(KERN_ERR
"%s: drive still BUSY!\n", drive
->name
);
312 static void ide_pio_sector(ide_drive_t
*drive
, unsigned int write
)
314 ide_hwif_t
*hwif
= drive
->hwif
;
315 struct scatterlist
*sg
= hwif
->sg_table
;
316 struct scatterlist
*cursg
= hwif
->cursg
;
318 #ifdef CONFIG_HIGHMEM
330 page
= sg_page(cursg
);
331 offset
= cursg
->offset
+ hwif
->cursg_ofs
* SECTOR_SIZE
;
333 /* get the current page and offset */
334 page
= nth_page(page
, (offset
>> PAGE_SHIFT
));
337 #ifdef CONFIG_HIGHMEM
338 local_irq_save(flags
);
340 buf
= kmap_atomic(page
, KM_BIO_SRC_IRQ
) + offset
;
345 if ((hwif
->cursg_ofs
* SECTOR_SIZE
) == cursg
->length
) {
346 hwif
->cursg
= sg_next(hwif
->cursg
);
350 /* do the actual data transfer */
352 taskfile_output_data(drive
, buf
, SECTOR_WORDS
);
354 taskfile_input_data(drive
, buf
, SECTOR_WORDS
);
356 kunmap_atomic(buf
, KM_BIO_SRC_IRQ
);
357 #ifdef CONFIG_HIGHMEM
358 local_irq_restore(flags
);
362 static void ide_pio_multi(ide_drive_t
*drive
, unsigned int write
)
366 nsect
= min_t(unsigned int, drive
->hwif
->nleft
, drive
->mult_count
);
368 ide_pio_sector(drive
, write
);
371 static void ide_pio_datablock(ide_drive_t
*drive
, struct request
*rq
,
374 if (rq
->bio
) /* fs request */
377 touch_softlockup_watchdog();
379 switch (drive
->hwif
->data_phase
) {
380 case TASKFILE_MULTI_IN
:
381 case TASKFILE_MULTI_OUT
:
382 ide_pio_multi(drive
, write
);
385 ide_pio_sector(drive
, write
);
390 static ide_startstop_t
task_error(ide_drive_t
*drive
, struct request
*rq
,
391 const char *s
, u8 stat
)
394 ide_hwif_t
*hwif
= drive
->hwif
;
395 int sectors
= hwif
->nsect
- hwif
->nleft
;
397 switch (hwif
->data_phase
) {
405 case TASKFILE_MULTI_IN
:
409 case TASKFILE_MULTI_OUT
:
410 sectors
-= drive
->mult_count
;
418 drv
= *(ide_driver_t
**)rq
->rq_disk
->private_data
;
419 drv
->end_request(drive
, 1, sectors
);
422 return ide_error(drive
, s
, stat
);
425 static void task_end_request(ide_drive_t
*drive
, struct request
*rq
, u8 stat
)
427 HWIF(drive
)->cursg
= NULL
;
429 if (rq
->cmd_type
== REQ_TYPE_ATA_TASKFILE
) {
430 ide_task_t
*task
= rq
->special
;
432 if (task
->tf_flags
& IDE_TFLAG_FLAGGED
) {
433 u8 err
= drive
->hwif
->INB(IDE_ERROR_REG
);
434 ide_end_drive_cmd(drive
, stat
, err
);
442 drv
= *(ide_driver_t
**)rq
->rq_disk
->private_data
;;
443 drv
->end_request(drive
, 1, rq
->hard_nr_sectors
);
445 ide_end_request(drive
, 1, rq
->hard_nr_sectors
);
449 * Handler for command with PIO data-in phase (Read/Read Multiple).
451 static ide_startstop_t
task_in_intr(ide_drive_t
*drive
)
453 ide_hwif_t
*hwif
= drive
->hwif
;
454 struct request
*rq
= HWGROUP(drive
)->rq
;
455 u8 stat
= hwif
->INB(IDE_STATUS_REG
);
457 /* new way for dealing with premature shared PCI interrupts */
458 if (!OK_STAT(stat
, DATA_READY
, BAD_R_STAT
)) {
459 if (stat
& (ERR_STAT
| DRQ_STAT
))
460 return task_error(drive
, rq
, __FUNCTION__
, stat
);
461 /* No data yet, so wait for another IRQ. */
462 ide_set_handler(drive
, &task_in_intr
, WAIT_WORSTCASE
, NULL
);
466 ide_pio_datablock(drive
, rq
, 0);
468 /* If it was the last datablock check status and finish transfer. */
470 stat
= wait_drive_not_busy(drive
);
471 if (!OK_STAT(stat
, 0, BAD_R_STAT
))
472 return task_error(drive
, rq
, __FUNCTION__
, stat
);
473 task_end_request(drive
, rq
, stat
);
477 /* Still data left to transfer. */
478 ide_set_handler(drive
, &task_in_intr
, WAIT_WORSTCASE
, NULL
);
484 * Handler for command with PIO data-out phase (Write/Write Multiple).
486 static ide_startstop_t
task_out_intr (ide_drive_t
*drive
)
488 ide_hwif_t
*hwif
= drive
->hwif
;
489 struct request
*rq
= HWGROUP(drive
)->rq
;
490 u8 stat
= hwif
->INB(IDE_STATUS_REG
);
492 if (!OK_STAT(stat
, DRIVE_READY
, drive
->bad_wstat
))
493 return task_error(drive
, rq
, __FUNCTION__
, stat
);
495 /* Deal with unexpected ATA data phase. */
496 if (((stat
& DRQ_STAT
) == 0) ^ !hwif
->nleft
)
497 return task_error(drive
, rq
, __FUNCTION__
, stat
);
500 task_end_request(drive
, rq
, stat
);
504 /* Still data left to transfer. */
505 ide_pio_datablock(drive
, rq
, 1);
506 ide_set_handler(drive
, &task_out_intr
, WAIT_WORSTCASE
, NULL
);
511 static ide_startstop_t
pre_task_out_intr(ide_drive_t
*drive
, struct request
*rq
)
513 ide_startstop_t startstop
;
515 if (ide_wait_stat(&startstop
, drive
, DATA_READY
,
516 drive
->bad_wstat
, WAIT_DRQ
)) {
517 printk(KERN_ERR
"%s: no DRQ after issuing %sWRITE%s\n",
519 drive
->hwif
->data_phase
? "MULT" : "",
520 drive
->addressing
? "_EXT" : "");
527 ide_set_handler(drive
, &task_out_intr
, WAIT_WORSTCASE
, NULL
);
528 ide_pio_datablock(drive
, rq
, 1);
533 int ide_raw_taskfile(ide_drive_t
*drive
, ide_task_t
*task
, u8
*buf
, u16 nsect
)
537 memset(&rq
, 0, sizeof(rq
));
539 rq
.cmd_type
= REQ_TYPE_ATA_TASKFILE
;
543 * (ks) We transfer currently only whole sectors.
544 * This is suffient for now. But, it would be great,
545 * if we would find a solution to transfer any size.
546 * To support special commands like READ LONG.
548 rq
.hard_nr_sectors
= rq
.nr_sectors
= nsect
;
549 rq
.hard_cur_sectors
= rq
.current_nr_sectors
= nsect
;
551 if (task
->tf_flags
& IDE_TFLAG_WRITE
)
552 rq
.cmd_flags
|= REQ_RW
;
557 return ide_do_drive_cmd(drive
, &rq
, ide_wait
);
560 EXPORT_SYMBOL(ide_raw_taskfile
);
562 int ide_no_data_taskfile(ide_drive_t
*drive
, ide_task_t
*task
)
564 task
->data_phase
= TASKFILE_NO_DATA
;
566 return ide_raw_taskfile(drive
, task
, NULL
, 0);
568 EXPORT_SYMBOL_GPL(ide_no_data_taskfile
);
570 #ifdef CONFIG_IDE_TASK_IOCTL
571 int ide_taskfile_ioctl (ide_drive_t
*drive
, unsigned int cmd
, unsigned long arg
)
573 ide_task_request_t
*req_task
;
579 int tasksize
= sizeof(struct ide_task_request_s
);
580 unsigned int taskin
= 0;
581 unsigned int taskout
= 0;
583 u8 io_32bit
= drive
->io_32bit
;
584 char __user
*buf
= (char __user
*)arg
;
586 // printk("IDE Taskfile ...\n");
588 req_task
= kzalloc(tasksize
, GFP_KERNEL
);
589 if (req_task
== NULL
) return -ENOMEM
;
590 if (copy_from_user(req_task
, buf
, tasksize
)) {
595 taskout
= req_task
->out_size
;
596 taskin
= req_task
->in_size
;
598 if (taskin
> 65536 || taskout
> 65536) {
604 int outtotal
= tasksize
;
605 outbuf
= kzalloc(taskout
, GFP_KERNEL
);
606 if (outbuf
== NULL
) {
610 if (copy_from_user(outbuf
, buf
+ outtotal
, taskout
)) {
617 int intotal
= tasksize
+ taskout
;
618 inbuf
= kzalloc(taskin
, GFP_KERNEL
);
623 if (copy_from_user(inbuf
, buf
+ intotal
, taskin
)) {
629 memset(&args
, 0, sizeof(ide_task_t
));
631 memcpy(&args
.tf_array
[0], req_task
->hob_ports
, HDIO_DRIVE_HOB_HDR_SIZE
- 2);
632 memcpy(&args
.tf_array
[6], req_task
->io_ports
, HDIO_DRIVE_TASK_HDR_SIZE
);
634 args
.data_phase
= req_task
->data_phase
;
636 args
.tf_flags
= IDE_TFLAG_OUT_DEVICE
;
637 if (drive
->addressing
== 1)
638 args
.tf_flags
|= IDE_TFLAG_LBA48
;
640 if (req_task
->out_flags
.all
) {
641 args
.tf_flags
|= IDE_TFLAG_FLAGGED
;
643 if (req_task
->out_flags
.b
.data
)
644 args
.tf_flags
|= IDE_TFLAG_OUT_DATA
;
646 if (req_task
->out_flags
.b
.nsector_hob
)
647 args
.tf_flags
|= IDE_TFLAG_OUT_HOB_NSECT
;
648 if (req_task
->out_flags
.b
.sector_hob
)
649 args
.tf_flags
|= IDE_TFLAG_OUT_HOB_LBAL
;
650 if (req_task
->out_flags
.b
.lcyl_hob
)
651 args
.tf_flags
|= IDE_TFLAG_OUT_HOB_LBAM
;
652 if (req_task
->out_flags
.b
.hcyl_hob
)
653 args
.tf_flags
|= IDE_TFLAG_OUT_HOB_LBAH
;
655 if (req_task
->out_flags
.b
.error_feature
)
656 args
.tf_flags
|= IDE_TFLAG_OUT_FEATURE
;
657 if (req_task
->out_flags
.b
.nsector
)
658 args
.tf_flags
|= IDE_TFLAG_OUT_NSECT
;
659 if (req_task
->out_flags
.b
.sector
)
660 args
.tf_flags
|= IDE_TFLAG_OUT_LBAL
;
661 if (req_task
->out_flags
.b
.lcyl
)
662 args
.tf_flags
|= IDE_TFLAG_OUT_LBAM
;
663 if (req_task
->out_flags
.b
.hcyl
)
664 args
.tf_flags
|= IDE_TFLAG_OUT_LBAH
;
666 args
.tf_flags
|= IDE_TFLAG_OUT_TF
;
667 if (args
.tf_flags
& IDE_TFLAG_LBA48
)
668 args
.tf_flags
|= IDE_TFLAG_OUT_HOB
;
671 if (req_task
->in_flags
.b
.data
)
672 args
.tf_flags
|= IDE_TFLAG_IN_DATA
;
675 switch(req_task
->data_phase
) {
676 case TASKFILE_MULTI_OUT
:
677 if (!drive
->mult_count
) {
678 /* (hs): give up if multcount is not set */
679 printk(KERN_ERR
"%s: %s Multimode Write " \
680 "multcount is not set\n",
681 drive
->name
, __FUNCTION__
);
688 case TASKFILE_OUT_DMAQ
:
689 case TASKFILE_OUT_DMA
:
690 nsect
= taskout
/ SECTOR_SIZE
;
693 case TASKFILE_MULTI_IN
:
694 if (!drive
->mult_count
) {
695 /* (hs): give up if multcount is not set */
696 printk(KERN_ERR
"%s: %s Multimode Read failure " \
697 "multcount is not set\n",
698 drive
->name
, __FUNCTION__
);
705 case TASKFILE_IN_DMAQ
:
706 case TASKFILE_IN_DMA
:
707 nsect
= taskin
/ SECTOR_SIZE
;
710 case TASKFILE_NO_DATA
:
717 if (req_task
->req_cmd
== IDE_DRIVE_TASK_NO_DATA
)
720 nsect
= (args
.tf
.hob_nsect
<< 8) | args
.tf
.nsect
;
723 printk(KERN_ERR
"%s: in/out command without data\n",
730 if (req_task
->req_cmd
== IDE_DRIVE_TASK_RAW_WRITE
)
731 args
.tf_flags
|= IDE_TFLAG_WRITE
;
733 err
= ide_raw_taskfile(drive
, &args
, data_buf
, nsect
);
735 memcpy(req_task
->hob_ports
, &args
.tf_array
[0], HDIO_DRIVE_HOB_HDR_SIZE
- 2);
736 memcpy(req_task
->io_ports
, &args
.tf_array
[6], HDIO_DRIVE_TASK_HDR_SIZE
);
738 if ((args
.tf_flags
& IDE_TFLAG_FLAGGED_SET_IN_FLAGS
) &&
739 req_task
->in_flags
.all
== 0) {
740 req_task
->in_flags
.all
= IDE_TASKFILE_STD_IN_FLAGS
;
741 if (drive
->addressing
== 1)
742 req_task
->in_flags
.all
|= (IDE_HOB_STD_IN_FLAGS
<< 8);
745 if (copy_to_user(buf
, req_task
, tasksize
)) {
750 int outtotal
= tasksize
;
751 if (copy_to_user(buf
+ outtotal
, outbuf
, taskout
)) {
757 int intotal
= tasksize
+ taskout
;
758 if (copy_to_user(buf
+ intotal
, inbuf
, taskin
)) {
768 // printk("IDE Taskfile ioctl ended. rc = %i\n", err);
770 drive
->io_32bit
= io_32bit
;
776 int ide_wait_cmd (ide_drive_t
*drive
, u8 cmd
, u8 nsect
, u8 feature
, u8 sectors
, u8
*buf
)
783 memset(buf
, 0, 4 + SECTOR_WORDS
* 4 * sectors
);
784 ide_init_drive_cmd(&rq
);
790 return ide_do_drive_cmd(drive
, &rq
, ide_wait
);
793 int ide_cmd_ioctl (ide_drive_t
*drive
, unsigned int cmd
, unsigned long arg
)
796 u8 args
[4], *argbuf
= args
;
800 struct ide_taskfile
*tf
= &tfargs
.tf
;
802 if (NULL
== (void *) arg
) {
804 ide_init_drive_cmd(&rq
);
805 return ide_do_drive_cmd(drive
, &rq
, ide_wait
);
808 if (copy_from_user(args
, (void __user
*)arg
, 4))
811 memset(&tfargs
, 0, sizeof(ide_task_t
));
812 tf
->feature
= args
[2];
815 tf
->command
= args
[0];
818 argsize
= 4 + (SECTOR_WORDS
* 4 * args
[3]);
819 argbuf
= kzalloc(argsize
, GFP_KERNEL
);
823 if (set_transfer(drive
, &tfargs
)) {
825 if (ide_ata66_check(drive
, &tfargs
))
829 err
= ide_wait_cmd(drive
, args
[0], args
[1], args
[2], args
[3], argbuf
);
831 if (!err
&& xfer_rate
) {
832 /* active-retuning-calls future */
833 ide_set_xfer_rate(drive
, xfer_rate
);
834 ide_driveid_update(drive
);
837 if (copy_to_user((void __user
*)arg
, argbuf
, argsize
))
844 int ide_task_ioctl (ide_drive_t
*drive
, unsigned int cmd
, unsigned long arg
)
846 void __user
*p
= (void __user
*)arg
;
851 if (copy_from_user(args
, p
, 7))
854 memset(&task
, 0, sizeof(task
));
855 memcpy(&task
.tf_array
[7], &args
[1], 6);
856 task
.tf
.command
= args
[0];
857 task
.tf_flags
= IDE_TFLAG_OUT_TF
| IDE_TFLAG_OUT_DEVICE
;
859 err
= ide_no_data_taskfile(drive
, &task
);
861 args
[0] = task
.tf
.command
;
862 memcpy(&args
[1], &task
.tf_array
[7], 6);
864 if (copy_to_user(p
, args
, 7))