diff options
author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2009-03-24 18:22:44 -0400 |
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committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2009-03-24 18:22:44 -0400 |
commit | 11938c929022bb92b1a42f5e1289524a1e465dc0 (patch) | |
tree | 7698cdcb8b45d30d7e4831cfa884c1ed13e1fe4c /drivers/ide/ide.c | |
parent | c4e66c36cce3f23d68013c4112013123ffe80bdb (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/ide/ide.c')
-rw-r--r-- | drivers/ide/ide.c | 154 |
1 files changed, 0 insertions, 154 deletions
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 | ||
63 | struct class *ide_port_class; | 63 | struct class *ide_port_class; |
64 | 64 | ||
65 | /* | ||
66 | * Locks for IDE setting functionality | ||
67 | */ | ||
68 | |||
69 | DEFINE_MUTEX(ide_setting_mtx); | ||
70 | |||
71 | ide_devset_get(io_32bit, io_32bit); | ||
72 | |||
73 | static 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 | |||
86 | ide_devset_get_flag(ksettings, IDE_DFLAG_KEEP_SETTINGS); | ||
87 | |||
88 | static 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 | |||
101 | ide_devset_get_flag(using_dma, IDE_DFLAG_USING_DMA); | ||
102 | |||
103 | static 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 | |||
125 | out: | ||
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 | */ | ||
138 | static 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 | |||
159 | static 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 | |||
195 | ide_devset_get_flag(unmaskirq, IDE_DFLAG_UNMASK); | ||
196 | |||
197 | static 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 | |||
213 | ide_ext_devset_rw_sync(io_32bit, io_32bit); | ||
214 | ide_ext_devset_rw_sync(keepsettings, ksettings); | ||
215 | ide_ext_devset_rw_sync(unmaskirq, unmaskirq); | ||
216 | ide_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 |