diff options
author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-10-10 16:39:33 -0400 |
---|---|---|
committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-10-10 16:39:33 -0400 |
commit | 05236ea6df7419f0f37cf9603cfee265cfce5832 (patch) | |
tree | 42aa04bc4106f80dd3f09895909fb6495c55a9cd /drivers | |
parent | 170dc5b085e688639aa2b7acd1b907e2e1c7a48a (diff) |
ide: move ioctls handling to ide-ioctls.c
* Move ioctls handling to ide-ioctls.c
(except HDIO_DRIVE_TASKFILE for now).
* Make ide_{cmd,task}() static.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/ide/Makefile | 4 | ||||
-rw-r--r-- | drivers/ide/ide-ioctls.c | 289 | ||||
-rw-r--r-- | drivers/ide/ide-taskfile.c | 109 | ||||
-rw-r--r-- | drivers/ide/ide.c | 174 |
4 files changed, 291 insertions, 285 deletions
diff --git a/drivers/ide/Makefile b/drivers/ide/Makefile index 64e0ecdc4ed5..76a30d763384 100644 --- a/drivers/ide/Makefile +++ b/drivers/ide/Makefile | |||
@@ -4,8 +4,8 @@ | |||
4 | 4 | ||
5 | EXTRA_CFLAGS += -Idrivers/ide | 5 | EXTRA_CFLAGS += -Idrivers/ide |
6 | 6 | ||
7 | ide-core-y += ide.o ide-io.o ide-iops.o ide-lib.o ide-probe.o ide-taskfile.o \ | 7 | ide-core-y += ide.o ide-ioctls.o ide-io.o ide-iops.o ide-lib.o ide-probe.o \ |
8 | ide-pio-blacklist.o | 8 | ide-taskfile.o ide-pio-blacklist.o |
9 | 9 | ||
10 | # core IDE code | 10 | # core IDE code |
11 | ide-core-$(CONFIG_IDE_TIMINGS) += ide-timings.o | 11 | ide-core-$(CONFIG_IDE_TIMINGS) += ide-timings.o |
diff --git a/drivers/ide/ide-ioctls.c b/drivers/ide/ide-ioctls.c new file mode 100644 index 000000000000..7a0d62e7286b --- /dev/null +++ b/drivers/ide/ide-ioctls.c | |||
@@ -0,0 +1,289 @@ | |||
1 | /* | ||
2 | * IDE ioctls handling. | ||
3 | */ | ||
4 | |||
5 | #include <linux/hdreg.h> | ||
6 | #include <linux/ide.h> | ||
7 | |||
8 | static const struct ide_ioctl_devset ide_ioctl_settings[] = { | ||
9 | { HDIO_GET_32BIT, HDIO_SET_32BIT, get_io_32bit, set_io_32bit }, | ||
10 | { HDIO_GET_KEEPSETTINGS, HDIO_SET_KEEPSETTINGS, get_ksettings, set_ksettings }, | ||
11 | { HDIO_GET_UNMASKINTR, HDIO_SET_UNMASKINTR, get_unmaskirq, set_unmaskirq }, | ||
12 | { HDIO_GET_DMA, HDIO_SET_DMA, get_using_dma, set_using_dma }, | ||
13 | { -1, HDIO_SET_PIO_MODE, NULL, set_pio_mode }, | ||
14 | { 0 } | ||
15 | }; | ||
16 | |||
17 | int ide_setting_ioctl(ide_drive_t *drive, struct block_device *bdev, | ||
18 | unsigned int cmd, unsigned long arg, | ||
19 | const struct ide_ioctl_devset *s) | ||
20 | { | ||
21 | unsigned long flags; | ||
22 | int err = -EOPNOTSUPP; | ||
23 | |||
24 | for (; s->get_ioctl; s++) { | ||
25 | if (s->get && s->get_ioctl == cmd) | ||
26 | goto read_val; | ||
27 | else if (s->set && s->set_ioctl == cmd) | ||
28 | goto set_val; | ||
29 | } | ||
30 | |||
31 | return err; | ||
32 | |||
33 | read_val: | ||
34 | mutex_lock(&ide_setting_mtx); | ||
35 | spin_lock_irqsave(&ide_lock, flags); | ||
36 | err = s->get(drive); | ||
37 | spin_unlock_irqrestore(&ide_lock, flags); | ||
38 | mutex_unlock(&ide_setting_mtx); | ||
39 | return err >= 0 ? put_user(err, (long __user *)arg) : err; | ||
40 | |||
41 | set_val: | ||
42 | if (bdev != bdev->bd_contains) | ||
43 | err = -EINVAL; | ||
44 | else { | ||
45 | if (!capable(CAP_SYS_ADMIN)) | ||
46 | err = -EACCES; | ||
47 | else { | ||
48 | mutex_lock(&ide_setting_mtx); | ||
49 | err = s->set(drive, arg); | ||
50 | mutex_unlock(&ide_setting_mtx); | ||
51 | } | ||
52 | } | ||
53 | return err; | ||
54 | } | ||
55 | EXPORT_SYMBOL_GPL(ide_setting_ioctl); | ||
56 | |||
57 | static int ide_get_identity_ioctl(ide_drive_t *drive, unsigned int cmd, | ||
58 | unsigned long arg) | ||
59 | { | ||
60 | u16 *id = NULL; | ||
61 | int size = (cmd == HDIO_GET_IDENTITY) ? (ATA_ID_WORDS * 2) : 142; | ||
62 | int rc = 0; | ||
63 | |||
64 | if (drive->id_read == 0) { | ||
65 | rc = -ENOMSG; | ||
66 | goto out; | ||
67 | } | ||
68 | |||
69 | id = kmalloc(size, GFP_KERNEL); | ||
70 | if (id == NULL) { | ||
71 | rc = -ENOMEM; | ||
72 | goto out; | ||
73 | } | ||
74 | |||
75 | memcpy(id, drive->id, size); | ||
76 | ata_id_to_hd_driveid(id); | ||
77 | |||
78 | if (copy_to_user((void __user *)arg, id, size)) | ||
79 | rc = -EFAULT; | ||
80 | |||
81 | kfree(id); | ||
82 | out: | ||
83 | return rc; | ||
84 | } | ||
85 | |||
86 | static int ide_get_nice_ioctl(ide_drive_t *drive, unsigned long arg) | ||
87 | { | ||
88 | return put_user((drive->dsc_overlap << IDE_NICE_DSC_OVERLAP) | | ||
89 | (drive->nice1 << IDE_NICE_1), (long __user *)arg); | ||
90 | } | ||
91 | |||
92 | static int ide_set_nice_ioctl(ide_drive_t *drive, unsigned long arg) | ||
93 | { | ||
94 | if (arg != (arg & ((1 << IDE_NICE_DSC_OVERLAP) | (1 << IDE_NICE_1)))) | ||
95 | return -EPERM; | ||
96 | |||
97 | if (((arg >> IDE_NICE_DSC_OVERLAP) & 1) && | ||
98 | (drive->media == ide_disk || drive->media == ide_floppy || | ||
99 | drive->scsi)) | ||
100 | return -EPERM; | ||
101 | |||
102 | drive->dsc_overlap = (arg >> IDE_NICE_DSC_OVERLAP) & 1; | ||
103 | drive->nice1 = (arg >> IDE_NICE_1) & 1; | ||
104 | |||
105 | return 0; | ||
106 | } | ||
107 | |||
108 | static int ide_cmd_ioctl(ide_drive_t *drive, unsigned cmd, unsigned long arg) | ||
109 | { | ||
110 | u8 *buf = NULL; | ||
111 | int bufsize = 0, err = 0; | ||
112 | u8 args[4], xfer_rate = 0; | ||
113 | ide_task_t tfargs; | ||
114 | struct ide_taskfile *tf = &tfargs.tf; | ||
115 | u16 *id = drive->id; | ||
116 | |||
117 | if (NULL == (void *) arg) { | ||
118 | struct request *rq; | ||
119 | |||
120 | rq = blk_get_request(drive->queue, READ, __GFP_WAIT); | ||
121 | rq->cmd_type = REQ_TYPE_ATA_TASKFILE; | ||
122 | err = blk_execute_rq(drive->queue, NULL, rq, 0); | ||
123 | blk_put_request(rq); | ||
124 | |||
125 | return err; | ||
126 | } | ||
127 | |||
128 | if (copy_from_user(args, (void __user *)arg, 4)) | ||
129 | return -EFAULT; | ||
130 | |||
131 | memset(&tfargs, 0, sizeof(ide_task_t)); | ||
132 | tf->feature = args[2]; | ||
133 | if (args[0] == ATA_CMD_SMART) { | ||
134 | tf->nsect = args[3]; | ||
135 | tf->lbal = args[1]; | ||
136 | tf->lbam = 0x4f; | ||
137 | tf->lbah = 0xc2; | ||
138 | tfargs.tf_flags = IDE_TFLAG_OUT_TF | IDE_TFLAG_IN_NSECT; | ||
139 | } else { | ||
140 | tf->nsect = args[1]; | ||
141 | tfargs.tf_flags = IDE_TFLAG_OUT_FEATURE | | ||
142 | IDE_TFLAG_OUT_NSECT | IDE_TFLAG_IN_NSECT; | ||
143 | } | ||
144 | tf->command = args[0]; | ||
145 | tfargs.data_phase = args[3] ? TASKFILE_IN : TASKFILE_NO_DATA; | ||
146 | |||
147 | if (args[3]) { | ||
148 | tfargs.tf_flags |= IDE_TFLAG_IO_16BIT; | ||
149 | bufsize = SECTOR_SIZE * args[3]; | ||
150 | buf = kzalloc(bufsize, GFP_KERNEL); | ||
151 | if (buf == NULL) | ||
152 | return -ENOMEM; | ||
153 | } | ||
154 | |||
155 | if (tf->command == ATA_CMD_SET_FEATURES && | ||
156 | tf->feature == SETFEATURES_XFER && | ||
157 | tf->nsect >= XFER_SW_DMA_0 && | ||
158 | (id[ATA_ID_UDMA_MODES] || | ||
159 | id[ATA_ID_MWDMA_MODES] || | ||
160 | id[ATA_ID_SWDMA_MODES])) { | ||
161 | xfer_rate = args[1]; | ||
162 | if (tf->nsect > XFER_UDMA_2 && !eighty_ninty_three(drive)) { | ||
163 | printk(KERN_WARNING "%s: UDMA speeds >UDMA33 cannot " | ||
164 | "be set\n", drive->name); | ||
165 | goto abort; | ||
166 | } | ||
167 | } | ||
168 | |||
169 | err = ide_raw_taskfile(drive, &tfargs, buf, args[3]); | ||
170 | |||
171 | args[0] = tf->status; | ||
172 | args[1] = tf->error; | ||
173 | args[2] = tf->nsect; | ||
174 | |||
175 | if (!err && xfer_rate) { | ||
176 | /* active-retuning-calls future */ | ||
177 | ide_set_xfer_rate(drive, xfer_rate); | ||
178 | ide_driveid_update(drive); | ||
179 | } | ||
180 | abort: | ||
181 | if (copy_to_user((void __user *)arg, &args, 4)) | ||
182 | err = -EFAULT; | ||
183 | if (buf) { | ||
184 | if (copy_to_user((void __user *)(arg + 4), buf, bufsize)) | ||
185 | err = -EFAULT; | ||
186 | kfree(buf); | ||
187 | } | ||
188 | return err; | ||
189 | } | ||
190 | |||
191 | static int ide_task_ioctl(ide_drive_t *drive, unsigned cmd, unsigned long arg) | ||
192 | { | ||
193 | void __user *p = (void __user *)arg; | ||
194 | int err = 0; | ||
195 | u8 args[7]; | ||
196 | ide_task_t task; | ||
197 | |||
198 | if (copy_from_user(args, p, 7)) | ||
199 | return -EFAULT; | ||
200 | |||
201 | memset(&task, 0, sizeof(task)); | ||
202 | memcpy(&task.tf_array[7], &args[1], 6); | ||
203 | task.tf.command = args[0]; | ||
204 | task.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE; | ||
205 | |||
206 | err = ide_no_data_taskfile(drive, &task); | ||
207 | |||
208 | args[0] = task.tf.command; | ||
209 | memcpy(&args[1], &task.tf_array[7], 6); | ||
210 | |||
211 | if (copy_to_user(p, args, 7)) | ||
212 | err = -EFAULT; | ||
213 | |||
214 | return err; | ||
215 | } | ||
216 | |||
217 | static int generic_drive_reset(ide_drive_t *drive) | ||
218 | { | ||
219 | struct request *rq; | ||
220 | int ret = 0; | ||
221 | |||
222 | rq = blk_get_request(drive->queue, READ, __GFP_WAIT); | ||
223 | rq->cmd_type = REQ_TYPE_SPECIAL; | ||
224 | rq->cmd_len = 1; | ||
225 | rq->cmd[0] = REQ_DRIVE_RESET; | ||
226 | rq->cmd_flags |= REQ_SOFTBARRIER; | ||
227 | if (blk_execute_rq(drive->queue, NULL, rq, 1)) | ||
228 | ret = rq->errors; | ||
229 | blk_put_request(rq); | ||
230 | return ret; | ||
231 | } | ||
232 | |||
233 | int generic_ide_ioctl(ide_drive_t *drive, struct file *file, | ||
234 | struct block_device *bdev, | ||
235 | unsigned int cmd, unsigned long arg) | ||
236 | { | ||
237 | int err; | ||
238 | |||
239 | err = ide_setting_ioctl(drive, bdev, cmd, arg, ide_ioctl_settings); | ||
240 | if (err != -EOPNOTSUPP) | ||
241 | return err; | ||
242 | |||
243 | switch (cmd) { | ||
244 | case HDIO_OBSOLETE_IDENTITY: | ||
245 | case HDIO_GET_IDENTITY: | ||
246 | if (bdev != bdev->bd_contains) | ||
247 | return -EINVAL; | ||
248 | return ide_get_identity_ioctl(drive, cmd, arg); | ||
249 | case HDIO_GET_NICE: | ||
250 | return ide_get_nice_ioctl(drive, arg); | ||
251 | case HDIO_SET_NICE: | ||
252 | if (!capable(CAP_SYS_ADMIN)) | ||
253 | return -EACCES; | ||
254 | return ide_set_nice_ioctl(drive, arg); | ||
255 | #ifdef CONFIG_IDE_TASK_IOCTL | ||
256 | case HDIO_DRIVE_TASKFILE: | ||
257 | if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO)) | ||
258 | return -EACCES; | ||
259 | if (drive->media == ide_disk) | ||
260 | return ide_taskfile_ioctl(drive, cmd, arg); | ||
261 | return -ENOMSG; | ||
262 | #endif | ||
263 | case HDIO_DRIVE_CMD: | ||
264 | if (!capable(CAP_SYS_RAWIO)) | ||
265 | return -EACCES; | ||
266 | return ide_cmd_ioctl(drive, cmd, arg); | ||
267 | case HDIO_DRIVE_TASK: | ||
268 | if (!capable(CAP_SYS_RAWIO)) | ||
269 | return -EACCES; | ||
270 | return ide_task_ioctl(drive, cmd, arg); | ||
271 | case HDIO_DRIVE_RESET: | ||
272 | if (!capable(CAP_SYS_ADMIN)) | ||
273 | return -EACCES; | ||
274 | return generic_drive_reset(drive); | ||
275 | case HDIO_GET_BUSSTATE: | ||
276 | if (!capable(CAP_SYS_ADMIN)) | ||
277 | return -EACCES; | ||
278 | if (put_user(BUSSTATE_ON, (long __user *)arg)) | ||
279 | return -EFAULT; | ||
280 | return 0; | ||
281 | case HDIO_SET_BUSSTATE: | ||
282 | if (!capable(CAP_SYS_ADMIN)) | ||
283 | return -EACCES; | ||
284 | return -EOPNOTSUPP; | ||
285 | default: | ||
286 | return -EINVAL; | ||
287 | } | ||
288 | } | ||
289 | EXPORT_SYMBOL(generic_ide_ioctl); | ||
diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c index 7ffe9004a4d6..487b18b3ebae 100644 --- a/drivers/ide/ide-taskfile.c +++ b/drivers/ide/ide-taskfile.c | |||
@@ -726,112 +726,3 @@ abort: | |||
726 | return err; | 726 | return err; |
727 | } | 727 | } |
728 | #endif | 728 | #endif |
729 | |||
730 | int ide_cmd_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg) | ||
731 | { | ||
732 | u8 *buf = NULL; | ||
733 | int bufsize = 0, err = 0; | ||
734 | u8 args[4], xfer_rate = 0; | ||
735 | ide_task_t tfargs; | ||
736 | struct ide_taskfile *tf = &tfargs.tf; | ||
737 | u16 *id = drive->id; | ||
738 | |||
739 | if (NULL == (void *) arg) { | ||
740 | struct request *rq; | ||
741 | |||
742 | rq = blk_get_request(drive->queue, READ, __GFP_WAIT); | ||
743 | rq->cmd_type = REQ_TYPE_ATA_TASKFILE; | ||
744 | err = blk_execute_rq(drive->queue, NULL, rq, 0); | ||
745 | blk_put_request(rq); | ||
746 | |||
747 | return err; | ||
748 | } | ||
749 | |||
750 | if (copy_from_user(args, (void __user *)arg, 4)) | ||
751 | return -EFAULT; | ||
752 | |||
753 | memset(&tfargs, 0, sizeof(ide_task_t)); | ||
754 | tf->feature = args[2]; | ||
755 | if (args[0] == ATA_CMD_SMART) { | ||
756 | tf->nsect = args[3]; | ||
757 | tf->lbal = args[1]; | ||
758 | tf->lbam = 0x4f; | ||
759 | tf->lbah = 0xc2; | ||
760 | tfargs.tf_flags = IDE_TFLAG_OUT_TF | IDE_TFLAG_IN_NSECT; | ||
761 | } else { | ||
762 | tf->nsect = args[1]; | ||
763 | tfargs.tf_flags = IDE_TFLAG_OUT_FEATURE | | ||
764 | IDE_TFLAG_OUT_NSECT | IDE_TFLAG_IN_NSECT; | ||
765 | } | ||
766 | tf->command = args[0]; | ||
767 | tfargs.data_phase = args[3] ? TASKFILE_IN : TASKFILE_NO_DATA; | ||
768 | |||
769 | if (args[3]) { | ||
770 | tfargs.tf_flags |= IDE_TFLAG_IO_16BIT; | ||
771 | bufsize = SECTOR_SIZE * args[3]; | ||
772 | buf = kzalloc(bufsize, GFP_KERNEL); | ||
773 | if (buf == NULL) | ||
774 | return -ENOMEM; | ||
775 | } | ||
776 | |||
777 | if (tf->command == ATA_CMD_SET_FEATURES && | ||
778 | tf->feature == SETFEATURES_XFER && | ||
779 | tf->nsect >= XFER_SW_DMA_0 && | ||
780 | (id[ATA_ID_UDMA_MODES] || | ||
781 | id[ATA_ID_MWDMA_MODES] || | ||
782 | id[ATA_ID_SWDMA_MODES])) { | ||
783 | xfer_rate = args[1]; | ||
784 | if (tf->nsect > XFER_UDMA_2 && !eighty_ninty_three(drive)) { | ||
785 | printk(KERN_WARNING "%s: UDMA speeds >UDMA33 cannot " | ||
786 | "be set\n", drive->name); | ||
787 | goto abort; | ||
788 | } | ||
789 | } | ||
790 | |||
791 | err = ide_raw_taskfile(drive, &tfargs, buf, args[3]); | ||
792 | |||
793 | args[0] = tf->status; | ||
794 | args[1] = tf->error; | ||
795 | args[2] = tf->nsect; | ||
796 | |||
797 | if (!err && xfer_rate) { | ||
798 | /* active-retuning-calls future */ | ||
799 | ide_set_xfer_rate(drive, xfer_rate); | ||
800 | ide_driveid_update(drive); | ||
801 | } | ||
802 | abort: | ||
803 | if (copy_to_user((void __user *)arg, &args, 4)) | ||
804 | err = -EFAULT; | ||
805 | if (buf) { | ||
806 | if (copy_to_user((void __user *)(arg + 4), buf, bufsize)) | ||
807 | err = -EFAULT; | ||
808 | kfree(buf); | ||
809 | } | ||
810 | return err; | ||
811 | } | ||
812 | |||
813 | int ide_task_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg) | ||
814 | { | ||
815 | void __user *p = (void __user *)arg; | ||
816 | int err = 0; | ||
817 | u8 args[7]; | ||
818 | ide_task_t task; | ||
819 | |||
820 | if (copy_from_user(args, p, 7)) | ||
821 | return -EFAULT; | ||
822 | |||
823 | memset(&task, 0, sizeof(task)); | ||
824 | memcpy(&task.tf_array[7], &args[1], 6); | ||
825 | task.tf.command = args[0]; | ||
826 | task.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE; | ||
827 | |||
828 | err = ide_no_data_taskfile(drive, &task); | ||
829 | |||
830 | args[0] = task.tf.command; | ||
831 | memcpy(&args[1], &task.tf_array[7], 6); | ||
832 | |||
833 | if (copy_to_user(p, args, 7)) | ||
834 | err = -EFAULT; | ||
835 | |||
836 | return err; | ||
837 | } | ||
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c index 19181493e722..349d7fa75585 100644 --- a/drivers/ide/ide.c +++ b/drivers/ide/ide.c | |||
@@ -489,180 +489,6 @@ static int generic_ide_resume(struct device *dev) | |||
489 | return err; | 489 | return err; |
490 | } | 490 | } |
491 | 491 | ||
492 | static int generic_drive_reset(ide_drive_t *drive) | ||
493 | { | ||
494 | struct request *rq; | ||
495 | int ret = 0; | ||
496 | |||
497 | rq = blk_get_request(drive->queue, READ, __GFP_WAIT); | ||
498 | rq->cmd_type = REQ_TYPE_SPECIAL; | ||
499 | rq->cmd_len = 1; | ||
500 | rq->cmd[0] = REQ_DRIVE_RESET; | ||
501 | rq->cmd_flags |= REQ_SOFTBARRIER; | ||
502 | if (blk_execute_rq(drive->queue, NULL, rq, 1)) | ||
503 | ret = rq->errors; | ||
504 | blk_put_request(rq); | ||
505 | return ret; | ||
506 | } | ||
507 | |||
508 | static int ide_get_identity_ioctl(ide_drive_t *drive, unsigned int cmd, | ||
509 | unsigned long arg) | ||
510 | { | ||
511 | u16 *id = NULL; | ||
512 | int size = (cmd == HDIO_GET_IDENTITY) ? (ATA_ID_WORDS * 2) : 142; | ||
513 | int rc = 0; | ||
514 | |||
515 | if (drive->id_read == 0) { | ||
516 | rc = -ENOMSG; | ||
517 | goto out; | ||
518 | } | ||
519 | |||
520 | id = kmalloc(size, GFP_KERNEL); | ||
521 | if (id == NULL) { | ||
522 | rc = -ENOMEM; | ||
523 | goto out; | ||
524 | } | ||
525 | |||
526 | memcpy(id, drive->id, size); | ||
527 | ata_id_to_hd_driveid(id); | ||
528 | |||
529 | if (copy_to_user((void __user *)arg, id, size)) | ||
530 | rc = -EFAULT; | ||
531 | |||
532 | kfree(id); | ||
533 | out: | ||
534 | return rc; | ||
535 | } | ||
536 | |||
537 | static int ide_get_nice_ioctl(ide_drive_t *drive, unsigned long arg) | ||
538 | { | ||
539 | return put_user((drive->dsc_overlap << IDE_NICE_DSC_OVERLAP) | | ||
540 | (drive->nice1 << IDE_NICE_1), (long __user *)arg); | ||
541 | } | ||
542 | |||
543 | static int ide_set_nice_ioctl(ide_drive_t *drive, unsigned long arg) | ||
544 | { | ||
545 | if (arg != (arg & ((1 << IDE_NICE_DSC_OVERLAP) | (1 << IDE_NICE_1)))) | ||
546 | return -EPERM; | ||
547 | |||
548 | if (((arg >> IDE_NICE_DSC_OVERLAP) & 1) && | ||
549 | (drive->media == ide_disk || drive->media == ide_floppy || | ||
550 | drive->scsi)) | ||
551 | return -EPERM; | ||
552 | |||
553 | drive->dsc_overlap = (arg >> IDE_NICE_DSC_OVERLAP) & 1; | ||
554 | drive->nice1 = (arg >> IDE_NICE_1) & 1; | ||
555 | |||
556 | return 0; | ||
557 | } | ||
558 | |||
559 | static const struct ide_ioctl_devset ide_ioctl_settings[] = { | ||
560 | { HDIO_GET_32BIT, HDIO_SET_32BIT, get_io_32bit, set_io_32bit }, | ||
561 | { HDIO_GET_KEEPSETTINGS, HDIO_SET_KEEPSETTINGS, get_ksettings, set_ksettings }, | ||
562 | { HDIO_GET_UNMASKINTR, HDIO_SET_UNMASKINTR, get_unmaskirq, set_unmaskirq }, | ||
563 | { HDIO_GET_DMA, HDIO_SET_DMA, get_using_dma, set_using_dma }, | ||
564 | { -1, HDIO_SET_PIO_MODE, NULL, set_pio_mode }, | ||
565 | { 0 } | ||
566 | }; | ||
567 | |||
568 | int generic_ide_ioctl(ide_drive_t *drive, struct file *file, | ||
569 | struct block_device *bdev, | ||
570 | unsigned int cmd, unsigned long arg) | ||
571 | { | ||
572 | int err; | ||
573 | |||
574 | err = ide_setting_ioctl(drive, bdev, cmd, arg, ide_ioctl_settings); | ||
575 | if (err != -EOPNOTSUPP) | ||
576 | return err; | ||
577 | |||
578 | switch (cmd) { | ||
579 | case HDIO_OBSOLETE_IDENTITY: | ||
580 | case HDIO_GET_IDENTITY: | ||
581 | if (bdev != bdev->bd_contains) | ||
582 | return -EINVAL; | ||
583 | return ide_get_identity_ioctl(drive, cmd, arg); | ||
584 | case HDIO_GET_NICE: | ||
585 | return ide_get_nice_ioctl(drive, arg); | ||
586 | case HDIO_SET_NICE: | ||
587 | if (!capable(CAP_SYS_ADMIN)) | ||
588 | return -EACCES; | ||
589 | return ide_set_nice_ioctl(drive, arg); | ||
590 | #ifdef CONFIG_IDE_TASK_IOCTL | ||
591 | case HDIO_DRIVE_TASKFILE: | ||
592 | if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO)) | ||
593 | return -EACCES; | ||
594 | if (drive->media == ide_disk) | ||
595 | return ide_taskfile_ioctl(drive, cmd, arg); | ||
596 | return -ENOMSG; | ||
597 | #endif | ||
598 | case HDIO_DRIVE_CMD: | ||
599 | if (!capable(CAP_SYS_RAWIO)) | ||
600 | return -EACCES; | ||
601 | return ide_cmd_ioctl(drive, cmd, arg); | ||
602 | case HDIO_DRIVE_TASK: | ||
603 | if (!capable(CAP_SYS_RAWIO)) | ||
604 | return -EACCES; | ||
605 | return ide_task_ioctl(drive, cmd, arg); | ||
606 | case HDIO_DRIVE_RESET: | ||
607 | if (!capable(CAP_SYS_ADMIN)) | ||
608 | return -EACCES; | ||
609 | return generic_drive_reset(drive); | ||
610 | case HDIO_GET_BUSSTATE: | ||
611 | if (!capable(CAP_SYS_ADMIN)) | ||
612 | return -EACCES; | ||
613 | if (put_user(BUSSTATE_ON, (long __user *)arg)) | ||
614 | return -EFAULT; | ||
615 | return 0; | ||
616 | case HDIO_SET_BUSSTATE: | ||
617 | if (!capable(CAP_SYS_ADMIN)) | ||
618 | return -EACCES; | ||
619 | return -EOPNOTSUPP; | ||
620 | default: | ||
621 | return -EINVAL; | ||
622 | } | ||
623 | } | ||
624 | EXPORT_SYMBOL(generic_ide_ioctl); | ||
625 | |||
626 | int ide_setting_ioctl(ide_drive_t *drive, struct block_device *bdev, | ||
627 | unsigned int cmd, unsigned long arg, | ||
628 | const struct ide_ioctl_devset *s) | ||
629 | { | ||
630 | unsigned long flags; | ||
631 | int err = -EOPNOTSUPP; | ||
632 | |||
633 | for (; s->get_ioctl; s++) { | ||
634 | if (s->get && s->get_ioctl == cmd) | ||
635 | goto read_val; | ||
636 | else if (s->set && s->set_ioctl == cmd) | ||
637 | goto set_val; | ||
638 | } | ||
639 | |||
640 | return err; | ||
641 | |||
642 | read_val: | ||
643 | mutex_lock(&ide_setting_mtx); | ||
644 | spin_lock_irqsave(&ide_lock, flags); | ||
645 | err = s->get(drive); | ||
646 | spin_unlock_irqrestore(&ide_lock, flags); | ||
647 | mutex_unlock(&ide_setting_mtx); | ||
648 | return err >= 0 ? put_user(err, (long __user *)arg) : err; | ||
649 | |||
650 | set_val: | ||
651 | if (bdev != bdev->bd_contains) | ||
652 | err = -EINVAL; | ||
653 | else { | ||
654 | if (!capable(CAP_SYS_ADMIN)) | ||
655 | err = -EACCES; | ||
656 | else { | ||
657 | mutex_lock(&ide_setting_mtx); | ||
658 | err = s->set(drive, arg); | ||
659 | mutex_unlock(&ide_setting_mtx); | ||
660 | } | ||
661 | } | ||
662 | return err; | ||
663 | } | ||
664 | EXPORT_SYMBOL_GPL(ide_setting_ioctl); | ||
665 | |||
666 | /** | 492 | /** |
667 | * ide_device_get - get an additional reference to a ide_drive_t | 493 | * ide_device_get - get an additional reference to a ide_drive_t |
668 | * @drive: device to get a reference to | 494 | * @drive: device to get a reference to |