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_load(ide_drive_t
*drive
, ide_task_t
*task
)
38 ide_hwif_t
*hwif
= drive
->hwif
;
39 struct ide_io_ports
*io_ports
= &hwif
->io_ports
;
40 struct ide_taskfile
*tf
= &task
->tf
;
41 u8 HIHI
= (task
->tf_flags
& IDE_TFLAG_LBA48
) ? 0xE0 : 0xEF;
43 if (task
->tf_flags
& IDE_TFLAG_FLAGGED
)
47 printk("%s: tf: feat 0x%02x nsect 0x%02x lbal 0x%02x "
48 "lbam 0x%02x lbah 0x%02x dev 0x%02x cmd 0x%02x\n",
49 drive
->name
, tf
->feature
, tf
->nsect
, tf
->lbal
,
50 tf
->lbam
, tf
->lbah
, tf
->device
, tf
->command
);
51 printk("%s: hob: nsect 0x%02x lbal 0x%02x "
52 "lbam 0x%02x lbah 0x%02x\n",
53 drive
->name
, tf
->hob_nsect
, tf
->hob_lbal
,
54 tf
->hob_lbam
, tf
->hob_lbah
);
57 ide_set_irq(drive
, 1);
59 if ((task
->tf_flags
& IDE_TFLAG_NO_SELECT_MASK
) == 0)
60 SELECT_MASK(drive
, 0);
62 if (task
->tf_flags
& IDE_TFLAG_OUT_DATA
)
63 hwif
->OUTW((tf
->hob_data
<< 8) | tf
->data
, io_ports
->data_addr
);
65 if (task
->tf_flags
& IDE_TFLAG_OUT_HOB_FEATURE
)
66 hwif
->OUTB(tf
->hob_feature
, io_ports
->feature_addr
);
67 if (task
->tf_flags
& IDE_TFLAG_OUT_HOB_NSECT
)
68 hwif
->OUTB(tf
->hob_nsect
, io_ports
->nsect_addr
);
69 if (task
->tf_flags
& IDE_TFLAG_OUT_HOB_LBAL
)
70 hwif
->OUTB(tf
->hob_lbal
, io_ports
->lbal_addr
);
71 if (task
->tf_flags
& IDE_TFLAG_OUT_HOB_LBAM
)
72 hwif
->OUTB(tf
->hob_lbam
, io_ports
->lbam_addr
);
73 if (task
->tf_flags
& IDE_TFLAG_OUT_HOB_LBAH
)
74 hwif
->OUTB(tf
->hob_lbah
, io_ports
->lbah_addr
);
76 if (task
->tf_flags
& IDE_TFLAG_OUT_FEATURE
)
77 hwif
->OUTB(tf
->feature
, io_ports
->feature_addr
);
78 if (task
->tf_flags
& IDE_TFLAG_OUT_NSECT
)
79 hwif
->OUTB(tf
->nsect
, io_ports
->nsect_addr
);
80 if (task
->tf_flags
& IDE_TFLAG_OUT_LBAL
)
81 hwif
->OUTB(tf
->lbal
, io_ports
->lbal_addr
);
82 if (task
->tf_flags
& IDE_TFLAG_OUT_LBAM
)
83 hwif
->OUTB(tf
->lbam
, io_ports
->lbam_addr
);
84 if (task
->tf_flags
& IDE_TFLAG_OUT_LBAH
)
85 hwif
->OUTB(tf
->lbah
, io_ports
->lbah_addr
);
87 if (task
->tf_flags
& IDE_TFLAG_OUT_DEVICE
)
88 hwif
->OUTB((tf
->device
& HIHI
) | drive
->select
.all
,
89 io_ports
->device_addr
);
92 int taskfile_lib_get_identify (ide_drive_t
*drive
, u8
*buf
)
96 memset(&args
, 0, sizeof(ide_task_t
));
98 if (drive
->media
== ide_disk
)
99 args
.tf
.command
= WIN_IDENTIFY
;
101 args
.tf
.command
= WIN_PIDENTIFY
;
102 args
.tf_flags
= IDE_TFLAG_TF
| IDE_TFLAG_DEVICE
;
103 args
.data_phase
= TASKFILE_IN
;
104 return ide_raw_taskfile(drive
, &args
, buf
, 1);
107 static int inline task_dma_ok(ide_task_t
*task
)
109 if (blk_fs_request(task
->rq
) || (task
->tf_flags
& IDE_TFLAG_FLAGGED
))
112 switch (task
->tf
.command
) {
113 case WIN_WRITEDMA_ONCE
:
115 case WIN_WRITEDMA_EXT
:
116 case WIN_READDMA_ONCE
:
118 case WIN_READDMA_EXT
:
119 case WIN_IDENTIFY_DMA
:
126 static ide_startstop_t
task_no_data_intr(ide_drive_t
*);
127 static ide_startstop_t
set_geometry_intr(ide_drive_t
*);
128 static ide_startstop_t
recal_intr(ide_drive_t
*);
129 static ide_startstop_t
set_multmode_intr(ide_drive_t
*);
130 static ide_startstop_t
pre_task_out_intr(ide_drive_t
*, struct request
*);
131 static ide_startstop_t
task_in_intr(ide_drive_t
*);
133 ide_startstop_t
do_rw_taskfile (ide_drive_t
*drive
, ide_task_t
*task
)
135 ide_hwif_t
*hwif
= HWIF(drive
);
136 struct ide_taskfile
*tf
= &task
->tf
;
137 ide_handler_t
*handler
= NULL
;
138 const struct ide_dma_ops
*dma_ops
= hwif
->dma_ops
;
140 if (task
->data_phase
== TASKFILE_MULTI_IN
||
141 task
->data_phase
== TASKFILE_MULTI_OUT
) {
142 if (!drive
->mult_count
) {
143 printk(KERN_ERR
"%s: multimode not set!\n",
149 if (task
->tf_flags
& IDE_TFLAG_FLAGGED
)
150 task
->tf_flags
|= IDE_TFLAG_FLAGGED_SET_IN_FLAGS
;
152 if ((task
->tf_flags
& IDE_TFLAG_DMA_PIO_FALLBACK
) == 0)
153 ide_tf_load(drive
, task
);
155 switch (task
->data_phase
) {
156 case TASKFILE_MULTI_OUT
:
158 hwif
->OUTBSYNC(drive
, tf
->command
, hwif
->io_ports
.command_addr
);
159 ndelay(400); /* FIXME */
160 return pre_task_out_intr(drive
, task
->rq
);
161 case TASKFILE_MULTI_IN
:
163 handler
= task_in_intr
;
165 case TASKFILE_NO_DATA
:
167 handler
= task_no_data_intr
;
168 /* WIN_{SPECIFY,RESTORE,SETMULT} use custom handlers */
169 if (task
->tf_flags
& IDE_TFLAG_CUSTOM_HANDLER
) {
170 switch (tf
->command
) {
171 case WIN_SPECIFY
: handler
= set_geometry_intr
; break;
172 case WIN_RESTORE
: handler
= recal_intr
; break;
173 case WIN_SETMULT
: handler
= set_multmode_intr
; break;
176 ide_execute_command(drive
, tf
->command
, handler
,
177 WAIT_WORSTCASE
, NULL
);
180 if (task_dma_ok(task
) == 0 || drive
->using_dma
== 0 ||
181 dma_ops
->dma_setup(drive
))
183 dma_ops
->dma_exec_cmd(drive
, tf
->command
);
184 dma_ops
->dma_start(drive
);
188 EXPORT_SYMBOL_GPL(do_rw_taskfile
);
191 * set_multmode_intr() is invoked on completion of a WIN_SETMULT cmd.
193 static ide_startstop_t
set_multmode_intr(ide_drive_t
*drive
)
195 u8 stat
= ide_read_status(drive
);
197 if (OK_STAT(stat
, READY_STAT
, BAD_STAT
))
198 drive
->mult_count
= drive
->mult_req
;
200 drive
->mult_req
= drive
->mult_count
= 0;
201 drive
->special
.b
.recalibrate
= 1;
202 (void) ide_dump_status(drive
, "set_multmode", stat
);
208 * set_geometry_intr() is invoked on completion of a WIN_SPECIFY cmd.
210 static ide_startstop_t
set_geometry_intr(ide_drive_t
*drive
)
215 while (((stat
= ide_read_status(drive
)) & BUSY_STAT
) && retries
--)
218 if (OK_STAT(stat
, READY_STAT
, BAD_STAT
))
221 if (stat
& (ERR_STAT
|DRQ_STAT
))
222 return ide_error(drive
, "set_geometry_intr", stat
);
224 BUG_ON(HWGROUP(drive
)->handler
!= NULL
);
225 ide_set_handler(drive
, &set_geometry_intr
, WAIT_WORSTCASE
, NULL
);
230 * recal_intr() is invoked on completion of a WIN_RESTORE (recalibrate) cmd.
232 static ide_startstop_t
recal_intr(ide_drive_t
*drive
)
234 u8 stat
= ide_read_status(drive
);
236 if (!OK_STAT(stat
, READY_STAT
, BAD_STAT
))
237 return ide_error(drive
, "recal_intr", stat
);
242 * Handler for commands without a data phase
244 static ide_startstop_t
task_no_data_intr(ide_drive_t
*drive
)
246 ide_task_t
*args
= HWGROUP(drive
)->rq
->special
;
249 local_irq_enable_in_hardirq();
250 stat
= ide_read_status(drive
);
252 if (!OK_STAT(stat
, READY_STAT
, BAD_STAT
))
253 return ide_error(drive
, "task_no_data_intr", stat
);
254 /* calls ide_end_drive_cmd */
257 ide_end_drive_cmd(drive
, stat
, ide_read_error(drive
));
262 static u8
wait_drive_not_busy(ide_drive_t
*drive
)
268 * Last sector was transfered, wait until drive is ready.
269 * This can take up to 10 usec, but we will wait max 1 ms.
271 for (retries
= 0; retries
< 100; retries
++) {
272 stat
= ide_read_status(drive
);
274 if (stat
& BUSY_STAT
)
280 if (stat
& BUSY_STAT
)
281 printk(KERN_ERR
"%s: drive still BUSY!\n", drive
->name
);
286 static void ide_pio_sector(ide_drive_t
*drive
, unsigned int write
)
288 ide_hwif_t
*hwif
= drive
->hwif
;
289 struct scatterlist
*sg
= hwif
->sg_table
;
290 struct scatterlist
*cursg
= hwif
->cursg
;
292 #ifdef CONFIG_HIGHMEM
304 page
= sg_page(cursg
);
305 offset
= cursg
->offset
+ hwif
->cursg_ofs
* SECTOR_SIZE
;
307 /* get the current page and offset */
308 page
= nth_page(page
, (offset
>> PAGE_SHIFT
));
311 #ifdef CONFIG_HIGHMEM
312 local_irq_save(flags
);
314 buf
= kmap_atomic(page
, KM_BIO_SRC_IRQ
) + offset
;
319 if ((hwif
->cursg_ofs
* SECTOR_SIZE
) == cursg
->length
) {
320 hwif
->cursg
= sg_next(hwif
->cursg
);
324 /* do the actual data transfer */
326 hwif
->ata_output_data(drive
, buf
, SECTOR_WORDS
);
328 hwif
->ata_input_data(drive
, buf
, SECTOR_WORDS
);
330 kunmap_atomic(buf
, KM_BIO_SRC_IRQ
);
331 #ifdef CONFIG_HIGHMEM
332 local_irq_restore(flags
);
336 static void ide_pio_multi(ide_drive_t
*drive
, unsigned int write
)
340 nsect
= min_t(unsigned int, drive
->hwif
->nleft
, drive
->mult_count
);
342 ide_pio_sector(drive
, write
);
345 static void ide_pio_datablock(ide_drive_t
*drive
, struct request
*rq
,
348 u8 saved_io_32bit
= drive
->io_32bit
;
350 if (rq
->bio
) /* fs request */
353 if (rq
->cmd_type
== REQ_TYPE_ATA_TASKFILE
) {
354 ide_task_t
*task
= rq
->special
;
356 if (task
->tf_flags
& IDE_TFLAG_IO_16BIT
)
360 touch_softlockup_watchdog();
362 switch (drive
->hwif
->data_phase
) {
363 case TASKFILE_MULTI_IN
:
364 case TASKFILE_MULTI_OUT
:
365 ide_pio_multi(drive
, write
);
368 ide_pio_sector(drive
, write
);
372 drive
->io_32bit
= saved_io_32bit
;
375 static ide_startstop_t
task_error(ide_drive_t
*drive
, struct request
*rq
,
376 const char *s
, u8 stat
)
379 ide_hwif_t
*hwif
= drive
->hwif
;
380 int sectors
= hwif
->nsect
- hwif
->nleft
;
382 switch (hwif
->data_phase
) {
390 case TASKFILE_MULTI_IN
:
394 case TASKFILE_MULTI_OUT
:
395 sectors
-= drive
->mult_count
;
403 drv
= *(ide_driver_t
**)rq
->rq_disk
->private_data
;
404 drv
->end_request(drive
, 1, sectors
);
407 return ide_error(drive
, s
, stat
);
410 void task_end_request(ide_drive_t
*drive
, struct request
*rq
, u8 stat
)
412 if (rq
->cmd_type
== REQ_TYPE_ATA_TASKFILE
) {
413 u8 err
= ide_read_error(drive
);
415 ide_end_drive_cmd(drive
, stat
, err
);
422 drv
= *(ide_driver_t
**)rq
->rq_disk
->private_data
;;
423 drv
->end_request(drive
, 1, rq
->nr_sectors
);
425 ide_end_request(drive
, 1, rq
->nr_sectors
);
429 * We got an interrupt on a task_in case, but no errors and no DRQ.
431 * It might be a spurious irq (shared irq), but it might be a
432 * command that had no output.
434 static ide_startstop_t
task_in_unexpected(ide_drive_t
*drive
, struct request
*rq
, u8 stat
)
436 /* Command all done? */
437 if (OK_STAT(stat
, READY_STAT
, BUSY_STAT
)) {
438 task_end_request(drive
, rq
, stat
);
442 /* Assume it was a spurious irq */
443 ide_set_handler(drive
, &task_in_intr
, WAIT_WORSTCASE
, NULL
);
448 * Handler for command with PIO data-in phase (Read/Read Multiple).
450 static ide_startstop_t
task_in_intr(ide_drive_t
*drive
)
452 ide_hwif_t
*hwif
= drive
->hwif
;
453 struct request
*rq
= HWGROUP(drive
)->rq
;
454 u8 stat
= ide_read_status(drive
);
458 return task_error(drive
, rq
, __func__
, stat
);
460 /* Didn't want any data? Odd. */
461 if (!(stat
& DRQ_STAT
))
462 return task_in_unexpected(drive
, rq
, stat
);
464 ide_pio_datablock(drive
, rq
, 0);
466 /* Are we done? Check status and finish transfer. */
468 stat
= wait_drive_not_busy(drive
);
469 if (!OK_STAT(stat
, 0, BAD_STAT
))
470 return task_error(drive
, rq
, __func__
, stat
);
471 task_end_request(drive
, rq
, stat
);
475 /* Still data left to transfer. */
476 ide_set_handler(drive
, &task_in_intr
, WAIT_WORSTCASE
, NULL
);
482 * Handler for command with PIO data-out phase (Write/Write Multiple).
484 static ide_startstop_t
task_out_intr (ide_drive_t
*drive
)
486 ide_hwif_t
*hwif
= drive
->hwif
;
487 struct request
*rq
= HWGROUP(drive
)->rq
;
488 u8 stat
= ide_read_status(drive
);
490 if (!OK_STAT(stat
, DRIVE_READY
, drive
->bad_wstat
))
491 return task_error(drive
, rq
, __func__
, stat
);
493 /* Deal with unexpected ATA data phase. */
494 if (((stat
& DRQ_STAT
) == 0) ^ !hwif
->nleft
)
495 return task_error(drive
, rq
, __func__
, stat
);
498 task_end_request(drive
, rq
, stat
);
502 /* Still data left to transfer. */
503 ide_pio_datablock(drive
, rq
, 1);
504 ide_set_handler(drive
, &task_out_intr
, WAIT_WORSTCASE
, NULL
);
509 static ide_startstop_t
pre_task_out_intr(ide_drive_t
*drive
, struct request
*rq
)
511 ide_startstop_t startstop
;
513 if (ide_wait_stat(&startstop
, drive
, DRQ_STAT
,
514 drive
->bad_wstat
, WAIT_DRQ
)) {
515 printk(KERN_ERR
"%s: no DRQ after issuing %sWRITE%s\n",
517 drive
->hwif
->data_phase
? "MULT" : "",
518 drive
->addressing
? "_EXT" : "");
525 ide_set_handler(drive
, &task_out_intr
, WAIT_WORSTCASE
, NULL
);
526 ide_pio_datablock(drive
, rq
, 1);
531 int ide_raw_taskfile(ide_drive_t
*drive
, ide_task_t
*task
, u8
*buf
, u16 nsect
)
535 memset(&rq
, 0, sizeof(rq
));
537 rq
.cmd_type
= REQ_TYPE_ATA_TASKFILE
;
541 * (ks) We transfer currently only whole sectors.
542 * This is suffient for now. But, it would be great,
543 * if we would find a solution to transfer any size.
544 * To support special commands like READ LONG.
546 rq
.hard_nr_sectors
= rq
.nr_sectors
= nsect
;
547 rq
.hard_cur_sectors
= rq
.current_nr_sectors
= nsect
;
549 if (task
->tf_flags
& IDE_TFLAG_WRITE
)
550 rq
.cmd_flags
|= REQ_RW
;
555 return ide_do_drive_cmd(drive
, &rq
, ide_wait
);
558 EXPORT_SYMBOL(ide_raw_taskfile
);
560 int ide_no_data_taskfile(ide_drive_t
*drive
, ide_task_t
*task
)
562 task
->data_phase
= TASKFILE_NO_DATA
;
564 return ide_raw_taskfile(drive
, task
, NULL
, 0);
566 EXPORT_SYMBOL_GPL(ide_no_data_taskfile
);
568 #ifdef CONFIG_IDE_TASK_IOCTL
569 int ide_taskfile_ioctl (ide_drive_t
*drive
, unsigned int cmd
, unsigned long arg
)
571 ide_task_request_t
*req_task
;
577 int tasksize
= sizeof(struct ide_task_request_s
);
578 unsigned int taskin
= 0;
579 unsigned int taskout
= 0;
581 char __user
*buf
= (char __user
*)arg
;
583 // printk("IDE Taskfile ...\n");
585 req_task
= kzalloc(tasksize
, GFP_KERNEL
);
586 if (req_task
== NULL
) return -ENOMEM
;
587 if (copy_from_user(req_task
, buf
, tasksize
)) {
592 taskout
= req_task
->out_size
;
593 taskin
= req_task
->in_size
;
595 if (taskin
> 65536 || taskout
> 65536) {
601 int outtotal
= tasksize
;
602 outbuf
= kzalloc(taskout
, GFP_KERNEL
);
603 if (outbuf
== NULL
) {
607 if (copy_from_user(outbuf
, buf
+ outtotal
, taskout
)) {
614 int intotal
= tasksize
+ taskout
;
615 inbuf
= kzalloc(taskin
, GFP_KERNEL
);
620 if (copy_from_user(inbuf
, buf
+ intotal
, taskin
)) {
626 memset(&args
, 0, sizeof(ide_task_t
));
628 memcpy(&args
.tf_array
[0], req_task
->hob_ports
, HDIO_DRIVE_HOB_HDR_SIZE
- 2);
629 memcpy(&args
.tf_array
[6], req_task
->io_ports
, HDIO_DRIVE_TASK_HDR_SIZE
);
631 args
.data_phase
= req_task
->data_phase
;
633 args
.tf_flags
= IDE_TFLAG_IO_16BIT
| IDE_TFLAG_DEVICE
|
635 if (drive
->addressing
== 1)
636 args
.tf_flags
|= (IDE_TFLAG_LBA48
| IDE_TFLAG_IN_HOB
);
638 if (req_task
->out_flags
.all
) {
639 args
.tf_flags
|= IDE_TFLAG_FLAGGED
;
641 if (req_task
->out_flags
.b
.data
)
642 args
.tf_flags
|= IDE_TFLAG_OUT_DATA
;
644 if (req_task
->out_flags
.b
.nsector_hob
)
645 args
.tf_flags
|= IDE_TFLAG_OUT_HOB_NSECT
;
646 if (req_task
->out_flags
.b
.sector_hob
)
647 args
.tf_flags
|= IDE_TFLAG_OUT_HOB_LBAL
;
648 if (req_task
->out_flags
.b
.lcyl_hob
)
649 args
.tf_flags
|= IDE_TFLAG_OUT_HOB_LBAM
;
650 if (req_task
->out_flags
.b
.hcyl_hob
)
651 args
.tf_flags
|= IDE_TFLAG_OUT_HOB_LBAH
;
653 if (req_task
->out_flags
.b
.error_feature
)
654 args
.tf_flags
|= IDE_TFLAG_OUT_FEATURE
;
655 if (req_task
->out_flags
.b
.nsector
)
656 args
.tf_flags
|= IDE_TFLAG_OUT_NSECT
;
657 if (req_task
->out_flags
.b
.sector
)
658 args
.tf_flags
|= IDE_TFLAG_OUT_LBAL
;
659 if (req_task
->out_flags
.b
.lcyl
)
660 args
.tf_flags
|= IDE_TFLAG_OUT_LBAM
;
661 if (req_task
->out_flags
.b
.hcyl
)
662 args
.tf_flags
|= IDE_TFLAG_OUT_LBAH
;
664 args
.tf_flags
|= IDE_TFLAG_OUT_TF
;
665 if (args
.tf_flags
& IDE_TFLAG_LBA48
)
666 args
.tf_flags
|= IDE_TFLAG_OUT_HOB
;
669 if (req_task
->in_flags
.b
.data
)
670 args
.tf_flags
|= IDE_TFLAG_IN_DATA
;
672 switch(req_task
->data_phase
) {
673 case TASKFILE_MULTI_OUT
:
674 if (!drive
->mult_count
) {
675 /* (hs): give up if multcount is not set */
676 printk(KERN_ERR
"%s: %s Multimode Write " \
677 "multcount is not set\n",
678 drive
->name
, __func__
);
685 case TASKFILE_OUT_DMAQ
:
686 case TASKFILE_OUT_DMA
:
687 nsect
= taskout
/ SECTOR_SIZE
;
690 case TASKFILE_MULTI_IN
:
691 if (!drive
->mult_count
) {
692 /* (hs): give up if multcount is not set */
693 printk(KERN_ERR
"%s: %s Multimode Read failure " \
694 "multcount is not set\n",
695 drive
->name
, __func__
);
702 case TASKFILE_IN_DMAQ
:
703 case TASKFILE_IN_DMA
:
704 nsect
= taskin
/ SECTOR_SIZE
;
707 case TASKFILE_NO_DATA
:
714 if (req_task
->req_cmd
== IDE_DRIVE_TASK_NO_DATA
)
717 nsect
= (args
.tf
.hob_nsect
<< 8) | args
.tf
.nsect
;
720 printk(KERN_ERR
"%s: in/out command without data\n",
727 if (req_task
->req_cmd
== IDE_DRIVE_TASK_RAW_WRITE
)
728 args
.tf_flags
|= IDE_TFLAG_WRITE
;
730 err
= ide_raw_taskfile(drive
, &args
, data_buf
, nsect
);
732 memcpy(req_task
->hob_ports
, &args
.tf_array
[0], HDIO_DRIVE_HOB_HDR_SIZE
- 2);
733 memcpy(req_task
->io_ports
, &args
.tf_array
[6], HDIO_DRIVE_TASK_HDR_SIZE
);
735 if ((args
.tf_flags
& IDE_TFLAG_FLAGGED_SET_IN_FLAGS
) &&
736 req_task
->in_flags
.all
== 0) {
737 req_task
->in_flags
.all
= IDE_TASKFILE_STD_IN_FLAGS
;
738 if (drive
->addressing
== 1)
739 req_task
->in_flags
.all
|= (IDE_HOB_STD_IN_FLAGS
<< 8);
742 if (copy_to_user(buf
, req_task
, tasksize
)) {
747 int outtotal
= tasksize
;
748 if (copy_to_user(buf
+ outtotal
, outbuf
, taskout
)) {
754 int intotal
= tasksize
+ taskout
;
755 if (copy_to_user(buf
+ intotal
, inbuf
, taskin
)) {
765 // printk("IDE Taskfile ioctl ended. rc = %i\n", err);
771 int ide_cmd_ioctl (ide_drive_t
*drive
, unsigned int cmd
, unsigned long arg
)
774 int bufsize
= 0, err
= 0;
775 u8 args
[4], xfer_rate
= 0;
777 struct ide_taskfile
*tf
= &tfargs
.tf
;
778 struct hd_driveid
*id
= drive
->id
;
780 if (NULL
== (void *) arg
) {
783 ide_init_drive_cmd(&rq
);
784 rq
.cmd_type
= REQ_TYPE_ATA_TASKFILE
;
786 return ide_do_drive_cmd(drive
, &rq
, ide_wait
);
789 if (copy_from_user(args
, (void __user
*)arg
, 4))
792 memset(&tfargs
, 0, sizeof(ide_task_t
));
793 tf
->feature
= args
[2];
794 if (args
[0] == WIN_SMART
) {
799 tfargs
.tf_flags
= IDE_TFLAG_OUT_TF
| IDE_TFLAG_IN_NSECT
;
802 tfargs
.tf_flags
= IDE_TFLAG_OUT_FEATURE
|
803 IDE_TFLAG_OUT_NSECT
| IDE_TFLAG_IN_NSECT
;
805 tf
->command
= args
[0];
806 tfargs
.data_phase
= args
[3] ? TASKFILE_IN
: TASKFILE_NO_DATA
;
809 tfargs
.tf_flags
|= IDE_TFLAG_IO_16BIT
;
810 bufsize
= SECTOR_WORDS
* 4 * args
[3];
811 buf
= kzalloc(bufsize
, GFP_KERNEL
);
816 if (tf
->command
== WIN_SETFEATURES
&&
817 tf
->feature
== SETFEATURES_XFER
&&
818 tf
->nsect
>= XFER_SW_DMA_0
&&
819 (id
->dma_ultra
|| id
->dma_mword
|| id
->dma_1word
)) {
821 if (tf
->nsect
> XFER_UDMA_2
&& !eighty_ninty_three(drive
)) {
822 printk(KERN_WARNING
"%s: UDMA speeds >UDMA33 cannot "
823 "be set\n", drive
->name
);
828 err
= ide_raw_taskfile(drive
, &tfargs
, buf
, args
[3]);
830 args
[0] = tf
->status
;
834 if (!err
&& xfer_rate
) {
835 /* active-retuning-calls future */
836 ide_set_xfer_rate(drive
, xfer_rate
);
837 ide_driveid_update(drive
);
840 if (copy_to_user((void __user
*)arg
, &args
, 4))
843 if (copy_to_user((void __user
*)(arg
+ 4), buf
, bufsize
))
850 int ide_task_ioctl (ide_drive_t
*drive
, unsigned int cmd
, unsigned long arg
)
852 void __user
*p
= (void __user
*)arg
;
857 if (copy_from_user(args
, p
, 7))
860 memset(&task
, 0, sizeof(task
));
861 memcpy(&task
.tf_array
[7], &args
[1], 6);
862 task
.tf
.command
= args
[0];
863 task
.tf_flags
= IDE_TFLAG_TF
| IDE_TFLAG_DEVICE
;
865 err
= ide_no_data_taskfile(drive
, &task
);
867 args
[0] = task
.tf
.command
;
868 memcpy(&args
[1], &task
.tf_array
[7], 6);
870 if (copy_to_user(p
, args
, 7))