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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2009-03-24 18:22:44 -0400
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2009-03-24 18:22:44 -0400
commit11938c929022bb92b1a42f5e1289524a1e465dc0 (patch)
tree7698cdcb8b45d30d7e4831cfa884c1ed13e1fe4c /drivers
parentc4e66c36cce3f23d68013c4112013123ffe80bdb (diff)
ide: move device settings code to ide-devsets.c
Remove stale comment from ide.c while at it. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/ide/Makefile3
-rw-r--r--drivers/ide/ide-devsets.c190
-rw-r--r--drivers/ide/ide-io.c37
-rw-r--r--drivers/ide/ide.c154
4 files changed, 192 insertions, 192 deletions
diff --git a/drivers/ide/Makefile b/drivers/ide/Makefile
index 1c326d94aa6d..83a970ee4bfe 100644
--- a/drivers/ide/Makefile
+++ b/drivers/ide/Makefile
@@ -5,7 +5,8 @@
5EXTRA_CFLAGS += -Idrivers/ide 5EXTRA_CFLAGS += -Idrivers/ide
6 6
7ide-core-y += ide.o ide-ioctls.o ide-io.o ide-iops.o ide-lib.o ide-probe.o \ 7ide-core-y += ide.o ide-ioctls.o ide-io.o ide-iops.o ide-lib.o ide-probe.o \
8 ide-taskfile.o ide-pm.o ide-park.o ide-pio-blacklist.o ide-sysfs.o 8 ide-taskfile.o ide-pm.o ide-park.o ide-pio-blacklist.o \
9 ide-sysfs.o ide-devsets.o
9 10
10# core IDE code 11# core IDE code
11ide-core-$(CONFIG_IDE_TIMINGS) += ide-timings.o 12ide-core-$(CONFIG_IDE_TIMINGS) += ide-timings.o
diff --git a/drivers/ide/ide-devsets.c b/drivers/ide/ide-devsets.c
new file mode 100644
index 000000000000..7c3953414d47
--- /dev/null
+++ b/drivers/ide/ide-devsets.c
@@ -0,0 +1,190 @@
1
2#include <linux/kernel.h>
3#include <linux/ide.h>
4
5DEFINE_MUTEX(ide_setting_mtx);
6
7ide_devset_get(io_32bit, io_32bit);
8
9static int set_io_32bit(ide_drive_t *drive, int arg)
10{
11 if (drive->dev_flags & IDE_DFLAG_NO_IO_32BIT)
12 return -EPERM;
13
14 if (arg < 0 || arg > 1 + (SUPPORT_VLB_SYNC << 1))
15 return -EINVAL;
16
17 drive->io_32bit = arg;
18
19 return 0;
20}
21
22ide_devset_get_flag(ksettings, IDE_DFLAG_KEEP_SETTINGS);
23
24static int set_ksettings(ide_drive_t *drive, int arg)
25{
26 if (arg < 0 || arg > 1)
27 return -EINVAL;
28
29 if (arg)
30 drive->dev_flags |= IDE_DFLAG_KEEP_SETTINGS;
31 else
32 drive->dev_flags &= ~IDE_DFLAG_KEEP_SETTINGS;
33
34 return 0;
35}
36
37ide_devset_get_flag(using_dma, IDE_DFLAG_USING_DMA);
38
39static int set_using_dma(ide_drive_t *drive, int arg)
40{
41#ifdef CONFIG_BLK_DEV_IDEDMA
42 int err = -EPERM;
43
44 if (arg < 0 || arg > 1)
45 return -EINVAL;
46
47 if (ata_id_has_dma(drive->id) == 0)
48 goto out;
49
50 if (drive->hwif->dma_ops == NULL)
51 goto out;
52
53 err = 0;
54
55 if (arg) {
56 if (ide_set_dma(drive))
57 err = -EIO;
58 } else
59 ide_dma_off(drive);
60
61out:
62 return err;
63#else
64 if (arg < 0 || arg > 1)
65 return -EINVAL;
66
67 return -EPERM;
68#endif
69}
70
71/*
72 * handle HDIO_SET_PIO_MODE ioctl abusers here, eventually it will go away
73 */
74static int set_pio_mode_abuse(ide_hwif_t *hwif, u8 req_pio)
75{
76 switch (req_pio) {
77 case 202:
78 case 201:
79 case 200:
80 case 102:
81 case 101:
82 case 100:
83 return (hwif->host_flags & IDE_HFLAG_ABUSE_DMA_MODES) ? 1 : 0;
84 case 9:
85 case 8:
86 return (hwif->host_flags & IDE_HFLAG_ABUSE_PREFETCH) ? 1 : 0;
87 case 7:
88 case 6:
89 return (hwif->host_flags & IDE_HFLAG_ABUSE_FAST_DEVSEL) ? 1 : 0;
90 default:
91 return 0;
92 }
93}
94
95static int set_pio_mode(ide_drive_t *drive, int arg)
96{
97 ide_hwif_t *hwif = drive->hwif;
98 const struct ide_port_ops *port_ops = hwif->port_ops;
99
100 if (arg < 0 || arg > 255)
101 return -EINVAL;
102
103 if (port_ops == NULL || port_ops->set_pio_mode == NULL ||
104 (hwif->host_flags & IDE_HFLAG_NO_SET_MODE))
105 return -ENOSYS;
106
107 if (set_pio_mode_abuse(drive->hwif, arg)) {
108 if (arg == 8 || arg == 9) {
109 unsigned long flags;
110
111 /* take lock for IDE_DFLAG_[NO_]UNMASK/[NO_]IO_32BIT */
112 spin_lock_irqsave(&hwif->lock, flags);
113 port_ops->set_pio_mode(drive, arg);
114 spin_unlock_irqrestore(&hwif->lock, flags);
115 } else
116 port_ops->set_pio_mode(drive, arg);
117 } else {
118 int keep_dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA);
119
120 ide_set_pio(drive, arg);
121
122 if (hwif->host_flags & IDE_HFLAG_SET_PIO_MODE_KEEP_DMA) {
123 if (keep_dma)
124 ide_dma_on(drive);
125 }
126 }
127
128 return 0;
129}
130
131ide_devset_get_flag(unmaskirq, IDE_DFLAG_UNMASK);
132
133static int set_unmaskirq(ide_drive_t *drive, int arg)
134{
135 if (drive->dev_flags & IDE_DFLAG_NO_UNMASK)
136 return -EPERM;
137
138 if (arg < 0 || arg > 1)
139 return -EINVAL;
140
141 if (arg)
142 drive->dev_flags |= IDE_DFLAG_UNMASK;
143 else
144 drive->dev_flags &= ~IDE_DFLAG_UNMASK;
145
146 return 0;
147}
148
149ide_ext_devset_rw_sync(io_32bit, io_32bit);
150ide_ext_devset_rw_sync(keepsettings, ksettings);
151ide_ext_devset_rw_sync(unmaskirq, unmaskirq);
152ide_ext_devset_rw_sync(using_dma, using_dma);
153__IDE_DEVSET(pio_mode, DS_SYNC, NULL, set_pio_mode);
154
155int ide_devset_execute(ide_drive_t *drive, const struct ide_devset *setting,
156 int arg)
157{
158 struct request_queue *q = drive->queue;
159 struct request *rq;
160 int ret = 0;
161
162 if (!(setting->flags & DS_SYNC))
163 return setting->set(drive, arg);
164
165 rq = blk_get_request(q, READ, __GFP_WAIT);
166 rq->cmd_type = REQ_TYPE_SPECIAL;
167 rq->cmd_len = 5;
168 rq->cmd[0] = REQ_DEVSET_EXEC;
169 *(int *)&rq->cmd[1] = arg;
170 rq->special = setting->set;
171
172 if (blk_execute_rq(q, NULL, rq, 0))
173 ret = rq->errors;
174 blk_put_request(rq);
175
176 return ret;
177}
178
179ide_startstop_t ide_do_devset(ide_drive_t *drive, struct request *rq)
180{
181 int err, (*setfunc)(ide_drive_t *, int) = rq->special;
182
183 err = setfunc(drive, *(int *)&rq->cmd[1]);
184 if (err)
185 rq->errors = err;
186 else
187 err = 1;
188 ide_end_request(drive, err, 0);
189 return ide_stopped;
190}
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 16e47989fcfd..74d1a3e68252 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -490,43 +490,6 @@ static ide_startstop_t execute_drive_cmd (ide_drive_t *drive,
490 return ide_stopped; 490 return ide_stopped;
491} 491}
492 492
493int ide_devset_execute(ide_drive_t *drive, const struct ide_devset *setting,
494 int arg)
495{
496 struct request_queue *q = drive->queue;
497 struct request *rq;
498 int ret = 0;
499
500 if (!(setting->flags & DS_SYNC))
501 return setting->set(drive, arg);
502
503 rq = blk_get_request(q, READ, __GFP_WAIT);
504 rq->cmd_type = REQ_TYPE_SPECIAL;
505 rq->cmd_len = 5;
506 rq->cmd[0] = REQ_DEVSET_EXEC;
507 *(int *)&rq->cmd[1] = arg;
508 rq->special = setting->set;
509
510 if (blk_execute_rq(q, NULL, rq, 0))
511 ret = rq->errors;
512 blk_put_request(rq);
513
514 return ret;
515}
516
517static ide_startstop_t ide_do_devset(ide_drive_t *drive, struct request *rq)
518{
519 int err, (*setfunc)(ide_drive_t *, int) = rq->special;
520
521 err = setfunc(drive, *(int *)&rq->cmd[1]);
522 if (err)
523 rq->errors = err;
524 else
525 err = 1;
526 ide_end_request(drive, err, 0);
527 return ide_stopped;
528}
529
530static ide_startstop_t ide_special_rq(ide_drive_t *drive, struct request *rq) 493static ide_startstop_t ide_special_rq(ide_drive_t *drive, struct request *rq)
531{ 494{
532 u8 cmd = rq->cmd[0]; 495 u8 cmd = rq->cmd[0];
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index c779aa24dbe6..92c9b90931e7 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -62,160 +62,6 @@
62 62
63struct class *ide_port_class; 63struct class *ide_port_class;
64 64
65/*
66 * Locks for IDE setting functionality
67 */
68
69DEFINE_MUTEX(ide_setting_mtx);
70
71ide_devset_get(io_32bit, io_32bit);
72
73static int set_io_32bit(ide_drive_t *drive, int arg)
74{
75 if (drive->dev_flags & IDE_DFLAG_NO_IO_32BIT)
76 return -EPERM;
77
78 if (arg < 0 || arg > 1 + (SUPPORT_VLB_SYNC << 1))
79 return -EINVAL;
80
81 drive->io_32bit = arg;
82
83 return 0;
84}
85
86ide_devset_get_flag(ksettings, IDE_DFLAG_KEEP_SETTINGS);
87
88static int set_ksettings(ide_drive_t *drive, int arg)
89{
90 if (arg < 0 || arg > 1)
91 return -EINVAL;
92
93 if (arg)
94 drive->dev_flags |= IDE_DFLAG_KEEP_SETTINGS;
95 else
96 drive->dev_flags &= ~IDE_DFLAG_KEEP_SETTINGS;
97
98 return 0;
99}
100
101ide_devset_get_flag(using_dma, IDE_DFLAG_USING_DMA);
102
103static int set_using_dma(ide_drive_t *drive, int arg)
104{
105#ifdef CONFIG_BLK_DEV_IDEDMA
106 int err = -EPERM;
107
108 if (arg < 0 || arg > 1)
109 return -EINVAL;
110
111 if (ata_id_has_dma(drive->id) == 0)
112 goto out;
113
114 if (drive->hwif->dma_ops == NULL)
115 goto out;
116
117 err = 0;
118
119 if (arg) {
120 if (ide_set_dma(drive))
121 err = -EIO;
122 } else
123 ide_dma_off(drive);
124
125out:
126 return err;
127#else
128 if (arg < 0 || arg > 1)
129 return -EINVAL;
130
131 return -EPERM;
132#endif
133}
134
135/*
136 * handle HDIO_SET_PIO_MODE ioctl abusers here, eventually it will go away
137 */
138static int set_pio_mode_abuse(ide_hwif_t *hwif, u8 req_pio)
139{
140 switch (req_pio) {
141 case 202:
142 case 201:
143 case 200:
144 case 102:
145 case 101:
146 case 100:
147 return (hwif->host_flags & IDE_HFLAG_ABUSE_DMA_MODES) ? 1 : 0;
148 case 9:
149 case 8:
150 return (hwif->host_flags & IDE_HFLAG_ABUSE_PREFETCH) ? 1 : 0;
151 case 7:
152 case 6:
153 return (hwif->host_flags & IDE_HFLAG_ABUSE_FAST_DEVSEL) ? 1 : 0;
154 default:
155 return 0;
156 }
157}
158
159static int set_pio_mode(ide_drive_t *drive, int arg)
160{
161 ide_hwif_t *hwif = drive->hwif;
162 const struct ide_port_ops *port_ops = hwif->port_ops;
163
164 if (arg < 0 || arg > 255)
165 return -EINVAL;
166
167 if (port_ops == NULL || port_ops->set_pio_mode == NULL ||
168 (hwif->host_flags & IDE_HFLAG_NO_SET_MODE))
169 return -ENOSYS;
170
171 if (set_pio_mode_abuse(drive->hwif, arg)) {
172 if (arg == 8 || arg == 9) {
173 unsigned long flags;
174
175 /* take lock for IDE_DFLAG_[NO_]UNMASK/[NO_]IO_32BIT */
176 spin_lock_irqsave(&hwif->lock, flags);
177 port_ops->set_pio_mode(drive, arg);
178 spin_unlock_irqrestore(&hwif->lock, flags);
179 } else
180 port_ops->set_pio_mode(drive, arg);
181 } else {
182 int keep_dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA);
183
184 ide_set_pio(drive, arg);
185
186 if (hwif->host_flags & IDE_HFLAG_SET_PIO_MODE_KEEP_DMA) {
187 if (keep_dma)
188 ide_dma_on(drive);
189 }
190 }
191
192 return 0;
193}
194
195ide_devset_get_flag(unmaskirq, IDE_DFLAG_UNMASK);
196
197static int set_unmaskirq(ide_drive_t *drive, int arg)
198{
199 if (drive->dev_flags & IDE_DFLAG_NO_UNMASK)
200 return -EPERM;
201
202 if (arg < 0 || arg > 1)
203 return -EINVAL;
204
205 if (arg)
206 drive->dev_flags |= IDE_DFLAG_UNMASK;
207 else
208 drive->dev_flags &= ~IDE_DFLAG_UNMASK;
209
210 return 0;
211}
212
213ide_ext_devset_rw_sync(io_32bit, io_32bit);
214ide_ext_devset_rw_sync(keepsettings, ksettings);
215ide_ext_devset_rw_sync(unmaskirq, unmaskirq);
216ide_ext_devset_rw_sync(using_dma, using_dma);
217__IDE_DEVSET(pio_mode, DS_SYNC, NULL, set_pio_mode);
218
219/** 65/**
220 * ide_device_get - get an additional reference to a ide_drive_t 66 * ide_device_get - get an additional reference to a ide_drive_t
221 * @drive: device to get a reference to 67 * @drive: device to get a reference to
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-15 03:42:54 -0500