Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
1da177e4 | 2 | * Copyright (C) 1997-1998 Mark Lord |
ccd32e22 | 3 | * Copyright (C) 2003 Red Hat |
7662d046 BZ |
4 | * |
5 | * Some code was moved here from ide.c, see it for original copyrights. | |
1da177e4 LT |
6 | */ |
7 | ||
8 | /* | |
9 | * This is the /proc/ide/ filesystem implementation. | |
10 | * | |
11 | * Drive/Driver settings can be retrieved by reading the drive's | |
12 | * "settings" files. e.g. "cat /proc/ide0/hda/settings" | |
13 | * To write a new value "val" into a specific setting "name", use: | |
14 | * echo "name:val" >/proc/ide/ide0/hda/settings | |
1da177e4 LT |
15 | */ |
16 | ||
1da177e4 LT |
17 | #include <linux/module.h> |
18 | ||
7c0f6ba6 | 19 | #include <linux/uaccess.h> |
1da177e4 | 20 | #include <linux/errno.h> |
1da177e4 LT |
21 | #include <linux/proc_fs.h> |
22 | #include <linux/stat.h> | |
23 | #include <linux/mm.h> | |
24 | #include <linux/pci.h> | |
25 | #include <linux/ctype.h> | |
1da177e4 LT |
26 | #include <linux/ide.h> |
27 | #include <linux/seq_file.h> | |
5a0e3ad6 | 28 | #include <linux/slab.h> |
1da177e4 LT |
29 | |
30 | #include <asm/io.h> | |
31 | ||
5cbf79cd BZ |
32 | static struct proc_dir_entry *proc_ide_root; |
33 | ||
6d703a81 | 34 | static int ide_imodel_proc_show(struct seq_file *m, void *v) |
1da177e4 | 35 | { |
6d703a81 | 36 | ide_hwif_t *hwif = (ide_hwif_t *) m->private; |
1da177e4 LT |
37 | const char *name; |
38 | ||
1da177e4 | 39 | switch (hwif->chipset) { |
441e92da PC |
40 | case ide_generic: name = "generic"; break; |
41 | case ide_pci: name = "pci"; break; | |
42 | case ide_cmd640: name = "cmd640"; break; | |
43 | case ide_dtc2278: name = "dtc2278"; break; | |
44 | case ide_ali14xx: name = "ali14xx"; break; | |
45 | case ide_qd65xx: name = "qd65xx"; break; | |
46 | case ide_umc8672: name = "umc8672"; break; | |
47 | case ide_ht6560b: name = "ht6560b"; break; | |
441e92da PC |
48 | case ide_4drives: name = "4drives"; break; |
49 | case ide_pmac: name = "mac-io"; break; | |
50 | case ide_au1xxx: name = "au1xxx"; break; | |
51 | case ide_palm3710: name = "palm3710"; break; | |
441e92da PC |
52 | case ide_acorn: name = "acorn"; break; |
53 | default: name = "(unknown)"; break; | |
1da177e4 | 54 | } |
6d703a81 AD |
55 | seq_printf(m, "%s\n", name); |
56 | return 0; | |
1da177e4 LT |
57 | } |
58 | ||
6d703a81 AD |
59 | static int ide_mate_proc_show(struct seq_file *m, void *v) |
60 | { | |
61 | ide_hwif_t *hwif = (ide_hwif_t *) m->private; | |
1da177e4 | 62 | |
4283e1ba | 63 | if (hwif && hwif->mate) |
6d703a81 | 64 | seq_printf(m, "%s\n", hwif->mate->name); |
1da177e4 | 65 | else |
6d703a81 AD |
66 | seq_printf(m, "(none)\n"); |
67 | return 0; | |
1da177e4 LT |
68 | } |
69 | ||
6d703a81 AD |
70 | static int ide_channel_proc_show(struct seq_file *m, void *v) |
71 | { | |
72 | ide_hwif_t *hwif = (ide_hwif_t *) m->private; | |
73 | ||
74 | seq_printf(m, "%c\n", hwif->channel ? '1' : '0'); | |
75 | return 0; | |
1da177e4 LT |
76 | } |
77 | ||
6d703a81 AD |
78 | static int ide_identify_proc_show(struct seq_file *m, void *v) |
79 | { | |
80 | ide_drive_t *drive = (ide_drive_t *)m->private; | |
81 | u8 *buf; | |
1da177e4 | 82 | |
6d703a81 AD |
83 | if (!drive) { |
84 | seq_putc(m, '\n'); | |
85 | return 0; | |
86 | } | |
1da177e4 | 87 | |
6d703a81 AD |
88 | buf = kmalloc(SECTOR_SIZE, GFP_KERNEL); |
89 | if (!buf) | |
90 | return -ENOMEM; | |
91 | if (taskfile_lib_get_identify(drive, buf) == 0) { | |
92 | __le16 *val = (__le16 *)buf; | |
93 | int i; | |
151a6701 | 94 | |
6d703a81 AD |
95 | for (i = 0; i < SECTOR_SIZE / 2; i++) { |
96 | seq_printf(m, "%04x%c", le16_to_cpu(val[i]), | |
97 | (i % 8) == 7 ? '\n' : ' '); | |
1da177e4 | 98 | } |
6d703a81 AD |
99 | } else |
100 | seq_putc(m, buf[0]); | |
101 | kfree(buf); | |
102 | return 0; | |
1da177e4 LT |
103 | } |
104 | ||
7662d046 | 105 | /** |
8185d5aa BZ |
106 | * ide_find_setting - find a specific setting |
107 | * @st: setting table pointer | |
7662d046 | 108 | * @name: setting name |
7662d046 | 109 | * |
8185d5aa | 110 | * Scan's the setting table for a matching entry and returns |
7662d046 BZ |
111 | * this or NULL if no entry is found. The caller must hold the |
112 | * setting semaphore | |
113 | */ | |
114 | ||
92f1f8fd EO |
115 | static |
116 | const struct ide_proc_devset *ide_find_setting(const struct ide_proc_devset *st, | |
117 | char *name) | |
7662d046 | 118 | { |
92f1f8fd EO |
119 | while (st->name) { |
120 | if (strcmp(st->name, name) == 0) | |
7662d046 | 121 | break; |
8185d5aa | 122 | st++; |
7662d046 | 123 | } |
92f1f8fd | 124 | return st->name ? st : NULL; |
7662d046 BZ |
125 | } |
126 | ||
127 | /** | |
128 | * ide_read_setting - read an IDE setting | |
129 | * @drive: drive to read from | |
130 | * @setting: drive setting | |
131 | * | |
132 | * Read a drive setting and return the value. The caller | |
f9383c42 | 133 | * must hold the ide_setting_mtx when making this call. |
7662d046 BZ |
134 | * |
135 | * BUGS: the data return and error are the same return value | |
136 | * so an error -EINVAL and true return of the same value cannot | |
137 | * be told apart | |
138 | */ | |
139 | ||
8185d5aa | 140 | static int ide_read_setting(ide_drive_t *drive, |
92f1f8fd | 141 | const struct ide_proc_devset *setting) |
7662d046 | 142 | { |
92f1f8fd | 143 | const struct ide_devset *ds = setting->setting; |
8185d5aa BZ |
144 | int val = -EINVAL; |
145 | ||
1f473e9c | 146 | if (ds->get) |
92f1f8fd | 147 | val = ds->get(drive); |
8185d5aa | 148 | |
7662d046 BZ |
149 | return val; |
150 | } | |
151 | ||
152 | /** | |
153 | * ide_write_setting - read an IDE setting | |
154 | * @drive: drive to read from | |
155 | * @setting: drive setting | |
156 | * @val: value | |
157 | * | |
158 | * Write a drive setting if it is possible. The caller | |
f9383c42 | 159 | * must hold the ide_setting_mtx when making this call. |
7662d046 BZ |
160 | * |
161 | * BUGS: the data return and error are the same return value | |
162 | * so an error -EINVAL and true return of the same value cannot | |
163 | * be told apart | |
164 | * | |
165 | * FIXME: This should be changed to enqueue a special request | |
166 | * to the driver to change settings, and then wait on a sema for completion. | |
167 | * The current scheme of polling is kludgy, though safe enough. | |
168 | */ | |
169 | ||
8185d5aa | 170 | static int ide_write_setting(ide_drive_t *drive, |
92f1f8fd | 171 | const struct ide_proc_devset *setting, int val) |
7662d046 | 172 | { |
92f1f8fd EO |
173 | const struct ide_devset *ds = setting->setting; |
174 | ||
7662d046 BZ |
175 | if (!capable(CAP_SYS_ADMIN)) |
176 | return -EACCES; | |
92f1f8fd | 177 | if (!ds->set) |
7662d046 | 178 | return -EPERM; |
92f1f8fd EO |
179 | if ((ds->flags & DS_SYNC) |
180 | && (val < setting->min || val > setting->max)) | |
7662d046 | 181 | return -EINVAL; |
92f1f8fd | 182 | return ide_devset_execute(drive, ds, val); |
7662d046 BZ |
183 | } |
184 | ||
92f1f8fd | 185 | ide_devset_get(xfer_rate, current_speed); |
8185d5aa | 186 | |
7662d046 BZ |
187 | static int set_xfer_rate (ide_drive_t *drive, int arg) |
188 | { | |
22aa4b32 | 189 | struct ide_cmd cmd; |
7662d046 | 190 | |
3b2a5c71 | 191 | if (arg < XFER_PIO_0 || arg > XFER_UDMA_6) |
7662d046 BZ |
192 | return -EINVAL; |
193 | ||
22aa4b32 BZ |
194 | memset(&cmd, 0, sizeof(cmd)); |
195 | cmd.tf.command = ATA_CMD_SET_FEATURES; | |
196 | cmd.tf.feature = SETFEATURES_XFER; | |
197 | cmd.tf.nsect = (u8)arg; | |
60f85019 SS |
198 | cmd.valid.out.tf = IDE_VALID_FEATURE | IDE_VALID_NSECT; |
199 | cmd.valid.in.tf = IDE_VALID_NSECT; | |
665d66e8 | 200 | cmd.tf_flags = IDE_TFLAG_SET_XFER; |
34f5d5ae | 201 | |
665d66e8 | 202 | return ide_no_data_taskfile(drive, &cmd); |
7662d046 BZ |
203 | } |
204 | ||
92f1f8fd EO |
205 | ide_devset_rw(current_speed, xfer_rate); |
206 | ide_devset_rw_field(init_speed, init_speed); | |
97100fc8 | 207 | ide_devset_rw_flag(nice1, IDE_DFLAG_NICE1); |
92f1f8fd EO |
208 | ide_devset_rw_field(number, dn); |
209 | ||
210 | static const struct ide_proc_devset ide_generic_settings[] = { | |
211 | IDE_PROC_DEVSET(current_speed, 0, 70), | |
212 | IDE_PROC_DEVSET(init_speed, 0, 70), | |
213 | IDE_PROC_DEVSET(io_32bit, 0, 1 + (SUPPORT_VLB_SYNC << 1)), | |
214 | IDE_PROC_DEVSET(keepsettings, 0, 1), | |
215 | IDE_PROC_DEVSET(nice1, 0, 1), | |
216 | IDE_PROC_DEVSET(number, 0, 3), | |
217 | IDE_PROC_DEVSET(pio_mode, 0, 255), | |
218 | IDE_PROC_DEVSET(unmaskirq, 0, 1), | |
219 | IDE_PROC_DEVSET(using_dma, 0, 1), | |
71bfc7a7 | 220 | { NULL }, |
8185d5aa | 221 | }; |
7662d046 | 222 | |
1da177e4 LT |
223 | static void proc_ide_settings_warn(void) |
224 | { | |
01f1afaf | 225 | printk_once(KERN_WARNING "Warning: /proc/ide/hd?/settings interface is " |
1da177e4 | 226 | "obsolete, and will be removed soon!\n"); |
1da177e4 LT |
227 | } |
228 | ||
6d703a81 | 229 | static int ide_settings_proc_show(struct seq_file *m, void *v) |
1da177e4 | 230 | { |
92f1f8fd EO |
231 | const struct ide_proc_devset *setting, *g, *d; |
232 | const struct ide_devset *ds; | |
6d703a81 AD |
233 | ide_drive_t *drive = (ide_drive_t *) m->private; |
234 | int rc, mul_factor, div_factor; | |
1da177e4 LT |
235 | |
236 | proc_ide_settings_warn(); | |
237 | ||
f9383c42 | 238 | mutex_lock(&ide_setting_mtx); |
8185d5aa BZ |
239 | g = ide_generic_settings; |
240 | d = drive->settings; | |
6d703a81 AD |
241 | seq_printf(m, "name\t\t\tvalue\t\tmin\t\tmax\t\tmode\n"); |
242 | seq_printf(m, "----\t\t\t-----\t\t---\t\t---\t\t----\n"); | |
92f1f8fd | 243 | while (g->name || (d && d->name)) { |
8185d5aa | 244 | /* read settings in the alphabetical order */ |
92f1f8fd EO |
245 | if (g->name && d && d->name) { |
246 | if (strcmp(d->name, g->name) < 0) | |
247 | setting = d++; | |
8185d5aa | 248 | else |
92f1f8fd EO |
249 | setting = g++; |
250 | } else if (d && d->name) { | |
251 | setting = d++; | |
8185d5aa | 252 | } else |
92f1f8fd | 253 | setting = g++; |
8185d5aa BZ |
254 | mul_factor = setting->mulf ? setting->mulf(drive) : 1; |
255 | div_factor = setting->divf ? setting->divf(drive) : 1; | |
6d703a81 | 256 | seq_printf(m, "%-24s", setting->name); |
441e92da PC |
257 | rc = ide_read_setting(drive, setting); |
258 | if (rc >= 0) | |
6d703a81 | 259 | seq_printf(m, "%-16d", rc * mul_factor / div_factor); |
1da177e4 | 260 | else |
6d703a81 AD |
261 | seq_printf(m, "%-16s", "write-only"); |
262 | seq_printf(m, "%-16d%-16d", (setting->min * mul_factor + div_factor - 1) / div_factor, setting->max * mul_factor / div_factor); | |
92f1f8fd EO |
263 | ds = setting->setting; |
264 | if (ds->get) | |
6d703a81 | 265 | seq_printf(m, "r"); |
92f1f8fd | 266 | if (ds->set) |
6d703a81 AD |
267 | seq_printf(m, "w"); |
268 | seq_printf(m, "\n"); | |
1da177e4 | 269 | } |
f9383c42 | 270 | mutex_unlock(&ide_setting_mtx); |
6d703a81 AD |
271 | return 0; |
272 | } | |
273 | ||
274 | static int ide_settings_proc_open(struct inode *inode, struct file *file) | |
275 | { | |
d9dda78b | 276 | return single_open(file, ide_settings_proc_show, PDE_DATA(inode)); |
1da177e4 LT |
277 | } |
278 | ||
279 | #define MAX_LEN 30 | |
280 | ||
6d703a81 AD |
281 | static ssize_t ide_settings_proc_write(struct file *file, const char __user *buffer, |
282 | size_t count, loff_t *pos) | |
1da177e4 | 283 | { |
d9dda78b | 284 | ide_drive_t *drive = PDE_DATA(file_inode(file)); |
1da177e4 | 285 | char name[MAX_LEN + 1]; |
8185d5aa | 286 | int for_real = 0, mul_factor, div_factor; |
1da177e4 | 287 | unsigned long n; |
8185d5aa | 288 | |
92f1f8fd | 289 | const struct ide_proc_devset *setting; |
1da177e4 LT |
290 | char *buf, *s; |
291 | ||
292 | if (!capable(CAP_SYS_ADMIN)) | |
293 | return -EACCES; | |
294 | ||
295 | proc_ide_settings_warn(); | |
296 | ||
297 | if (count >= PAGE_SIZE) | |
298 | return -EINVAL; | |
299 | ||
300 | s = buf = (char *)__get_free_page(GFP_USER); | |
301 | if (!buf) | |
302 | return -ENOMEM; | |
303 | ||
304 | if (copy_from_user(buf, buffer, count)) { | |
305 | free_page((unsigned long)buf); | |
306 | return -EFAULT; | |
307 | } | |
308 | ||
309 | buf[count] = '\0'; | |
310 | ||
311 | /* | |
312 | * Skip over leading whitespace | |
313 | */ | |
314 | while (count && isspace(*s)) { | |
315 | --count; | |
316 | ++s; | |
317 | } | |
318 | /* | |
319 | * Do one full pass to verify all parameters, | |
320 | * then do another to actually write the new settings. | |
321 | */ | |
322 | do { | |
323 | char *p = s; | |
324 | n = count; | |
325 | while (n > 0) { | |
326 | unsigned val; | |
327 | char *q = p; | |
328 | ||
329 | while (n > 0 && *p != ':') { | |
330 | --n; | |
331 | p++; | |
332 | } | |
333 | if (*p != ':') | |
334 | goto parse_error; | |
335 | if (p - q > MAX_LEN) | |
336 | goto parse_error; | |
337 | memcpy(name, q, p - q); | |
338 | name[p - q] = 0; | |
339 | ||
340 | if (n > 0) { | |
341 | --n; | |
342 | p++; | |
343 | } else | |
344 | goto parse_error; | |
345 | ||
346 | val = simple_strtoul(p, &q, 10); | |
347 | n -= q - p; | |
348 | p = q; | |
349 | if (n > 0 && !isspace(*p)) | |
350 | goto parse_error; | |
351 | while (n > 0 && isspace(*p)) { | |
352 | --n; | |
353 | ++p; | |
354 | } | |
355 | ||
f9383c42 | 356 | mutex_lock(&ide_setting_mtx); |
8185d5aa BZ |
357 | /* generic settings first, then driver specific ones */ |
358 | setting = ide_find_setting(ide_generic_settings, name); | |
441e92da | 359 | if (!setting) { |
8185d5aa BZ |
360 | if (drive->settings) |
361 | setting = ide_find_setting(drive->settings, name); | |
362 | if (!setting) { | |
363 | mutex_unlock(&ide_setting_mtx); | |
364 | goto parse_error; | |
365 | } | |
366 | } | |
367 | if (for_real) { | |
368 | mul_factor = setting->mulf ? setting->mulf(drive) : 1; | |
369 | div_factor = setting->divf ? setting->divf(drive) : 1; | |
370 | ide_write_setting(drive, setting, val * div_factor / mul_factor); | |
1da177e4 | 371 | } |
f9383c42 | 372 | mutex_unlock(&ide_setting_mtx); |
1da177e4 LT |
373 | } |
374 | } while (!for_real++); | |
375 | free_page((unsigned long)buf); | |
376 | return count; | |
377 | parse_error: | |
378 | free_page((unsigned long)buf); | |
6d703a81 | 379 | printk("%s(): parse error\n", __func__); |
1da177e4 LT |
380 | return -EINVAL; |
381 | } | |
382 | ||
6d703a81 AD |
383 | static const struct file_operations ide_settings_proc_fops = { |
384 | .owner = THIS_MODULE, | |
385 | .open = ide_settings_proc_open, | |
386 | .read = seq_read, | |
387 | .llseek = seq_lseek, | |
388 | .release = single_release, | |
389 | .write = ide_settings_proc_write, | |
390 | }; | |
391 | ||
ec7d9c9c | 392 | int ide_capacity_proc_show(struct seq_file *m, void *v) |
1da177e4 | 393 | { |
6d703a81 AD |
394 | seq_printf(m, "%llu\n", (long long)0x7fffffff); |
395 | return 0; | |
1da177e4 | 396 | } |
ec7d9c9c | 397 | EXPORT_SYMBOL_GPL(ide_capacity_proc_show); |
1da177e4 | 398 | |
ec7d9c9c | 399 | int ide_geometry_proc_show(struct seq_file *m, void *v) |
1da177e4 | 400 | { |
6d703a81 | 401 | ide_drive_t *drive = (ide_drive_t *) m->private; |
1da177e4 | 402 | |
6d703a81 | 403 | seq_printf(m, "physical %d/%d/%d\n", |
1da177e4 | 404 | drive->cyl, drive->head, drive->sect); |
6d703a81 | 405 | seq_printf(m, "logical %d/%d/%d\n", |
1da177e4 | 406 | drive->bios_cyl, drive->bios_head, drive->bios_sect); |
6d703a81 AD |
407 | return 0; |
408 | } | |
ec7d9c9c | 409 | EXPORT_SYMBOL(ide_geometry_proc_show); |
1da177e4 | 410 | |
6d703a81 | 411 | static int ide_dmodel_proc_show(struct seq_file *seq, void *v) |
1da177e4 | 412 | { |
6d703a81 | 413 | ide_drive_t *drive = (ide_drive_t *) seq->private; |
4dde4492 | 414 | char *m = (char *)&drive->id[ATA_ID_PROD]; |
1da177e4 | 415 | |
6d703a81 AD |
416 | seq_printf(seq, "%.40s\n", m[0] ? m : "(none)"); |
417 | return 0; | |
1da177e4 LT |
418 | } |
419 | ||
6d703a81 AD |
420 | static int ide_driver_proc_show(struct seq_file *m, void *v) |
421 | { | |
422 | ide_drive_t *drive = (ide_drive_t *)m->private; | |
7f3c868b BZ |
423 | struct device *dev = &drive->gendev; |
424 | struct ide_driver *ide_drv; | |
1da177e4 | 425 | |
8604affd | 426 | if (dev->driver) { |
7f3c868b | 427 | ide_drv = to_ide_driver(dev->driver); |
6d703a81 | 428 | seq_printf(m, "%s version %s\n", |
8604affd | 429 | dev->driver->name, ide_drv->version); |
1da177e4 | 430 | } else |
6d703a81 AD |
431 | seq_printf(m, "ide-default version 0.9.newide\n"); |
432 | return 0; | |
433 | } | |
434 | ||
6d703a81 | 435 | static int ide_media_proc_show(struct seq_file *m, void *v) |
1da177e4 | 436 | { |
6d703a81 | 437 | ide_drive_t *drive = (ide_drive_t *) m->private; |
1da177e4 | 438 | const char *media; |
1da177e4 LT |
439 | |
440 | switch (drive->media) { | |
441e92da PC |
441 | case ide_disk: media = "disk\n"; break; |
442 | case ide_cdrom: media = "cdrom\n"; break; | |
443 | case ide_tape: media = "tape\n"; break; | |
444 | case ide_floppy: media = "floppy\n"; break; | |
445 | case ide_optical: media = "optical\n"; break; | |
446 | default: media = "UNKNOWN\n"; break; | |
1da177e4 | 447 | } |
6d703a81 AD |
448 | seq_puts(m, media); |
449 | return 0; | |
450 | } | |
451 | ||
452 | static int ide_media_proc_open(struct inode *inode, struct file *file) | |
453 | { | |
d9dda78b | 454 | return single_open(file, ide_media_proc_show, PDE_DATA(inode)); |
1da177e4 LT |
455 | } |
456 | ||
6d703a81 AD |
457 | static const struct file_operations ide_media_proc_fops = { |
458 | .owner = THIS_MODULE, | |
459 | .open = ide_media_proc_open, | |
460 | .read = seq_read, | |
461 | .llseek = seq_lseek, | |
462 | .release = single_release, | |
463 | }; | |
464 | ||
1da177e4 | 465 | static ide_proc_entry_t generic_drive_entries[] = { |
ec7d9c9c CH |
466 | { "driver", S_IFREG|S_IRUGO, ide_driver_proc_show }, |
467 | { "identify", S_IFREG|S_IRUSR, ide_identify_proc_show }, | |
468 | { "media", S_IFREG|S_IRUGO, ide_media_proc_show }, | |
469 | { "model", S_IFREG|S_IRUGO, ide_dmodel_proc_show }, | |
6d703a81 | 470 | {} |
1da177e4 LT |
471 | }; |
472 | ||
7662d046 | 473 | static void ide_add_proc_entries(struct proc_dir_entry *dir, ide_proc_entry_t *p, void *data) |
1da177e4 LT |
474 | { |
475 | struct proc_dir_entry *ent; | |
476 | ||
477 | if (!dir || !p) | |
478 | return; | |
479 | while (p->name != NULL) { | |
ec7d9c9c | 480 | ent = proc_create_single_data(p->name, p->mode, dir, p->show, data); |
1da177e4 | 481 | if (!ent) return; |
1da177e4 LT |
482 | p++; |
483 | } | |
484 | } | |
485 | ||
7662d046 | 486 | static void ide_remove_proc_entries(struct proc_dir_entry *dir, ide_proc_entry_t *p) |
1da177e4 LT |
487 | { |
488 | if (!dir || !p) | |
489 | return; | |
490 | while (p->name != NULL) { | |
491 | remove_proc_entry(p->name, dir); | |
492 | p++; | |
493 | } | |
494 | } | |
495 | ||
7f3c868b | 496 | void ide_proc_register_driver(ide_drive_t *drive, struct ide_driver *driver) |
7662d046 | 497 | { |
8185d5aa | 498 | mutex_lock(&ide_setting_mtx); |
79cb3803 | 499 | drive->settings = driver->proc_devsets(drive); |
8185d5aa BZ |
500 | mutex_unlock(&ide_setting_mtx); |
501 | ||
79cb3803 | 502 | ide_add_proc_entries(drive->proc, driver->proc_entries(drive), drive); |
7662d046 BZ |
503 | } |
504 | ||
505 | EXPORT_SYMBOL(ide_proc_register_driver); | |
506 | ||
507 | /** | |
508 | * ide_proc_unregister_driver - remove driver specific data | |
509 | * @drive: drive | |
510 | * @driver: driver | |
511 | * | |
512 | * Clean up the driver specific /proc files and IDE settings | |
513 | * for a given drive. | |
514 | * | |
1f473e9c | 515 | * Takes ide_setting_mtx. |
7662d046 BZ |
516 | */ |
517 | ||
7f3c868b | 518 | void ide_proc_unregister_driver(ide_drive_t *drive, struct ide_driver *driver) |
7662d046 | 519 | { |
79cb3803 | 520 | ide_remove_proc_entries(drive->proc, driver->proc_entries(drive)); |
7662d046 | 521 | |
f9383c42 | 522 | mutex_lock(&ide_setting_mtx); |
7662d046 | 523 | /* |
1f473e9c BZ |
524 | * ide_setting_mtx protects both the settings list and the use |
525 | * of settings (we cannot take a setting out that is being used). | |
7662d046 | 526 | */ |
8185d5aa | 527 | drive->settings = NULL; |
f9383c42 | 528 | mutex_unlock(&ide_setting_mtx); |
7662d046 | 529 | } |
7662d046 BZ |
530 | EXPORT_SYMBOL(ide_proc_unregister_driver); |
531 | ||
d9270a3f | 532 | void ide_proc_port_register_devices(ide_hwif_t *hwif) |
1da177e4 | 533 | { |
1da177e4 LT |
534 | struct proc_dir_entry *ent; |
535 | struct proc_dir_entry *parent = hwif->proc; | |
2bd24a1c | 536 | ide_drive_t *drive; |
1da177e4 | 537 | char name[64]; |
2bd24a1c | 538 | int i; |
1da177e4 | 539 | |
2bd24a1c | 540 | ide_port_for_each_dev(i, drive, hwif) { |
1902a253 | 541 | if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0) |
1da177e4 LT |
542 | continue; |
543 | ||
544 | drive->proc = proc_mkdir(drive->name, parent); | |
ec7d9c9c | 545 | if (drive->proc) { |
1da177e4 | 546 | ide_add_proc_entries(drive->proc, generic_drive_entries, drive); |
f8ff6c73 | 547 | proc_create_data("settings", S_IFREG|S_IRUSR|S_IWUSR, |
ec7d9c9c CH |
548 | drive->proc, &ide_settings_proc_fops, |
549 | drive); | |
550 | } | |
441e92da | 551 | sprintf(name, "ide%d/%s", (drive->name[2]-'a')/2, drive->name); |
1da177e4 LT |
552 | ent = proc_symlink(drive->name, proc_ide_root, name); |
553 | if (!ent) return; | |
554 | } | |
555 | } | |
556 | ||
5b0c4b30 | 557 | void ide_proc_unregister_device(ide_drive_t *drive) |
1da177e4 LT |
558 | { |
559 | if (drive->proc) { | |
ec7d9c9c | 560 | remove_proc_entry("settings", drive->proc); |
1da177e4 LT |
561 | ide_remove_proc_entries(drive->proc, generic_drive_entries); |
562 | remove_proc_entry(drive->name, proc_ide_root); | |
5b0c4b30 | 563 | remove_proc_entry(drive->name, drive->hwif->proc); |
1da177e4 LT |
564 | drive->proc = NULL; |
565 | } | |
566 | } | |
567 | ||
1da177e4 | 568 | static ide_proc_entry_t hwif_entries[] = { |
ec7d9c9c CH |
569 | { "channel", S_IFREG|S_IRUGO, ide_channel_proc_show }, |
570 | { "mate", S_IFREG|S_IRUGO, ide_mate_proc_show }, | |
571 | { "model", S_IFREG|S_IRUGO, ide_imodel_proc_show }, | |
6d703a81 | 572 | {} |
1da177e4 LT |
573 | }; |
574 | ||
5cbf79cd | 575 | void ide_proc_register_port(ide_hwif_t *hwif) |
1da177e4 | 576 | { |
5cbf79cd BZ |
577 | if (!hwif->proc) { |
578 | hwif->proc = proc_mkdir(hwif->name, proc_ide_root); | |
1da177e4 | 579 | |
5cbf79cd BZ |
580 | if (!hwif->proc) |
581 | return; | |
582 | ||
583 | ide_add_proc_entries(hwif->proc, hwif_entries, hwif); | |
1da177e4 LT |
584 | } |
585 | } | |
586 | ||
5cbf79cd | 587 | void ide_proc_unregister_port(ide_hwif_t *hwif) |
1da177e4 LT |
588 | { |
589 | if (hwif->proc) { | |
1da177e4 LT |
590 | ide_remove_proc_entries(hwif->proc, hwif_entries); |
591 | remove_proc_entry(hwif->name, proc_ide_root); | |
592 | hwif->proc = NULL; | |
593 | } | |
594 | } | |
595 | ||
8604affd BZ |
596 | static int proc_print_driver(struct device_driver *drv, void *data) |
597 | { | |
7f3c868b | 598 | struct ide_driver *ide_drv = to_ide_driver(drv); |
8604affd BZ |
599 | struct seq_file *s = data; |
600 | ||
601 | seq_printf(s, "%s version %s\n", drv->name, ide_drv->version); | |
602 | ||
603 | return 0; | |
604 | } | |
605 | ||
606 | static int ide_drivers_show(struct seq_file *s, void *p) | |
607 | { | |
349ae23f RD |
608 | int err; |
609 | ||
610 | err = bus_for_each_drv(&ide_bus_type, NULL, s, proc_print_driver); | |
611 | if (err < 0) | |
612 | printk(KERN_WARNING "IDE: %s: bus_for_each_drv error: %d\n", | |
eb63963a | 613 | __func__, err); |
8604affd BZ |
614 | return 0; |
615 | } | |
616 | ||
94d0fb15 | 617 | DEFINE_SHOW_ATTRIBUTE(ide_drivers); |
1da177e4 LT |
618 | |
619 | void proc_ide_create(void) | |
620 | { | |
5cbf79cd BZ |
621 | proc_ide_root = proc_mkdir("ide", NULL); |
622 | ||
1da177e4 LT |
623 | if (!proc_ide_root) |
624 | return; | |
625 | ||
94d0fb15 | 626 | proc_create("drivers", 0, proc_ide_root, &ide_drivers_fops); |
1da177e4 LT |
627 | } |
628 | ||
629 | void proc_ide_destroy(void) | |
630 | { | |
643bdc6f | 631 | remove_proc_entry("drivers", proc_ide_root); |
1da177e4 LT |
632 | remove_proc_entry("ide", NULL); |
633 | } |