1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18#include <linux/module.h>
19
20#include <linux/uaccess.h>
21#include <linux/errno.h>
22#include <linux/proc_fs.h>
23#include <linux/stat.h>
24#include <linux/mm.h>
25#include <linux/pci.h>
26#include <linux/ctype.h>
27#include <linux/ide.h>
28#include <linux/seq_file.h>
29#include <linux/slab.h>
30
31#include <asm/io.h>
32
33static struct proc_dir_entry *proc_ide_root;
34
35static int ide_imodel_proc_show(struct seq_file *m, void *v)
36{
37 ide_hwif_t *hwif = (ide_hwif_t *) m->private;
38 const char *name;
39
40 switch (hwif->chipset) {
41 case ide_generic: name = "generic"; break;
42 case ide_pci: name = "pci"; break;
43 case ide_cmd640: name = "cmd640"; break;
44 case ide_dtc2278: name = "dtc2278"; break;
45 case ide_ali14xx: name = "ali14xx"; break;
46 case ide_qd65xx: name = "qd65xx"; break;
47 case ide_umc8672: name = "umc8672"; break;
48 case ide_ht6560b: name = "ht6560b"; break;
49 case ide_4drives: name = "4drives"; break;
50 case ide_pmac: name = "mac-io"; break;
51 case ide_au1xxx: name = "au1xxx"; break;
52 case ide_palm3710: name = "palm3710"; break;
53 case ide_acorn: name = "acorn"; break;
54 default: name = "(unknown)"; break;
55 }
56 seq_printf(m, "%s\n", name);
57 return 0;
58}
59
60static int ide_mate_proc_show(struct seq_file *m, void *v)
61{
62 ide_hwif_t *hwif = (ide_hwif_t *) m->private;
63
64 if (hwif && hwif->mate)
65 seq_printf(m, "%s\n", hwif->mate->name);
66 else
67 seq_printf(m, "(none)\n");
68 return 0;
69}
70
71static int ide_channel_proc_show(struct seq_file *m, void *v)
72{
73 ide_hwif_t *hwif = (ide_hwif_t *) m->private;
74
75 seq_printf(m, "%c\n", hwif->channel ? '1' : '0');
76 return 0;
77}
78
79static int ide_identify_proc_show(struct seq_file *m, void *v)
80{
81 ide_drive_t *drive = (ide_drive_t *)m->private;
82 u8 *buf;
83
84 if (!drive) {
85 seq_putc(m, '\n');
86 return 0;
87 }
88
89 buf = kmalloc(SECTOR_SIZE, GFP_KERNEL);
90 if (!buf)
91 return -ENOMEM;
92 if (taskfile_lib_get_identify(drive, buf) == 0) {
93 __le16 *val = (__le16 *)buf;
94 int i;
95
96 for (i = 0; i < SECTOR_SIZE / 2; i++) {
97 seq_printf(m, "%04x%c", le16_to_cpu(val[i]),
98 (i % 8) == 7 ? '\n' : ' ');
99 }
100 } else
101 seq_putc(m, buf[0]);
102 kfree(buf);
103 return 0;
104}
105
106
107
108
109
110
111
112
113
114
115
116static
117const struct ide_proc_devset *ide_find_setting(const struct ide_proc_devset *st,
118 char *name)
119{
120 while (st->name) {
121 if (strcmp(st->name, name) == 0)
122 break;
123 st++;
124 }
125 return st->name ? st : NULL;
126}
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141static int ide_read_setting(ide_drive_t *drive,
142 const struct ide_proc_devset *setting)
143{
144 const struct ide_devset *ds = setting->setting;
145 int val = -EINVAL;
146
147 if (ds->get)
148 val = ds->get(drive);
149
150 return val;
151}
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171static int ide_write_setting(ide_drive_t *drive,
172 const struct ide_proc_devset *setting, int val)
173{
174 const struct ide_devset *ds = setting->setting;
175
176 if (!capable(CAP_SYS_ADMIN))
177 return -EACCES;
178 if (!ds->set)
179 return -EPERM;
180 if ((ds->flags & DS_SYNC)
181 && (val < setting->min || val > setting->max))
182 return -EINVAL;
183 return ide_devset_execute(drive, ds, val);
184}
185
186ide_devset_get(xfer_rate, current_speed);
187
188static int set_xfer_rate (ide_drive_t *drive, int arg)
189{
190 struct ide_cmd cmd;
191
192 if (arg < XFER_PIO_0 || arg > XFER_UDMA_6)
193 return -EINVAL;
194
195 memset(&cmd, 0, sizeof(cmd));
196 cmd.tf.command = ATA_CMD_SET_FEATURES;
197 cmd.tf.feature = SETFEATURES_XFER;
198 cmd.tf.nsect = (u8)arg;
199 cmd.valid.out.tf = IDE_VALID_FEATURE | IDE_VALID_NSECT;
200 cmd.valid.in.tf = IDE_VALID_NSECT;
201 cmd.tf_flags = IDE_TFLAG_SET_XFER;
202
203 return ide_no_data_taskfile(drive, &cmd);
204}
205
206ide_devset_rw(current_speed, xfer_rate);
207ide_devset_rw_field(init_speed, init_speed);
208ide_devset_rw_flag(nice1, IDE_DFLAG_NICE1);
209ide_devset_ro_field(number, dn);
210
211static const struct ide_proc_devset ide_generic_settings[] = {
212 IDE_PROC_DEVSET(current_speed, 0, 70),
213 IDE_PROC_DEVSET(init_speed, 0, 70),
214 IDE_PROC_DEVSET(io_32bit, 0, 1 + (SUPPORT_VLB_SYNC << 1)),
215 IDE_PROC_DEVSET(keepsettings, 0, 1),
216 IDE_PROC_DEVSET(nice1, 0, 1),
217 IDE_PROC_DEVSET(number, 0, 3),
218 IDE_PROC_DEVSET(pio_mode, 0, 255),
219 IDE_PROC_DEVSET(unmaskirq, 0, 1),
220 IDE_PROC_DEVSET(using_dma, 0, 1),
221 { NULL },
222};
223
224static void proc_ide_settings_warn(void)
225{
226 printk_once(KERN_WARNING "Warning: /proc/ide/hd?/settings interface is "
227 "obsolete, and will be removed soon!\n");
228}
229
230static int ide_settings_proc_show(struct seq_file *m, void *v)
231{
232 const struct ide_proc_devset *setting, *g, *d;
233 const struct ide_devset *ds;
234 ide_drive_t *drive = (ide_drive_t *) m->private;
235 int rc, mul_factor, div_factor;
236
237 proc_ide_settings_warn();
238
239 mutex_lock(&ide_setting_mtx);
240 g = ide_generic_settings;
241 d = drive->settings;
242 seq_printf(m, "name\t\t\tvalue\t\tmin\t\tmax\t\tmode\n");
243 seq_printf(m, "----\t\t\t-----\t\t---\t\t---\t\t----\n");
244 while (g->name || (d && d->name)) {
245
246 if (g->name && d && d->name) {
247 if (strcmp(d->name, g->name) < 0)
248 setting = d++;
249 else
250 setting = g++;
251 } else if (d && d->name) {
252 setting = d++;
253 } else
254 setting = g++;
255 mul_factor = setting->mulf ? setting->mulf(drive) : 1;
256 div_factor = setting->divf ? setting->divf(drive) : 1;
257 seq_printf(m, "%-24s", setting->name);
258 rc = ide_read_setting(drive, setting);
259 if (rc >= 0)
260 seq_printf(m, "%-16d", rc * mul_factor / div_factor);
261 else
262 seq_printf(m, "%-16s", "write-only");
263 seq_printf(m, "%-16d%-16d", (setting->min * mul_factor + div_factor - 1) / div_factor, setting->max * mul_factor / div_factor);
264 ds = setting->setting;
265 if (ds->get)
266 seq_printf(m, "r");
267 if (ds->set)
268 seq_printf(m, "w");
269 seq_printf(m, "\n");
270 }
271 mutex_unlock(&ide_setting_mtx);
272 return 0;
273}
274
275static int ide_settings_proc_open(struct inode *inode, struct file *file)
276{
277 return single_open(file, ide_settings_proc_show, PDE_DATA(inode));
278}
279
280#define MAX_LEN 30
281
282static ssize_t ide_settings_proc_write(struct file *file, const char __user *buffer,
283 size_t count, loff_t *pos)
284{
285 ide_drive_t *drive = PDE_DATA(file_inode(file));
286 char name[MAX_LEN + 1];
287 int for_real = 0, mul_factor, div_factor;
288 unsigned long n;
289
290 const struct ide_proc_devset *setting;
291 char *buf, *s;
292
293 if (!capable(CAP_SYS_ADMIN))
294 return -EACCES;
295
296 proc_ide_settings_warn();
297
298 if (count >= PAGE_SIZE)
299 return -EINVAL;
300
301 s = buf = (char *)__get_free_page(GFP_USER);
302 if (!buf)
303 return -ENOMEM;
304
305 if (copy_from_user(buf, buffer, count)) {
306 free_page((unsigned long)buf);
307 return -EFAULT;
308 }
309
310 buf[count] = '\0';
311
312
313
314
315 while (count && isspace(*s)) {
316 --count;
317 ++s;
318 }
319
320
321
322
323 do {
324 char *p = s;
325 n = count;
326 while (n > 0) {
327 unsigned val;
328 char *q = p;
329
330 while (n > 0 && *p != ':') {
331 --n;
332 p++;
333 }
334 if (*p != ':')
335 goto parse_error;
336 if (p - q > MAX_LEN)
337 goto parse_error;
338 memcpy(name, q, p - q);
339 name[p - q] = 0;
340
341 if (n > 0) {
342 --n;
343 p++;
344 } else
345 goto parse_error;
346
347 val = simple_strtoul(p, &q, 10);
348 n -= q - p;
349 p = q;
350 if (n > 0 && !isspace(*p))
351 goto parse_error;
352 while (n > 0 && isspace(*p)) {
353 --n;
354 ++p;
355 }
356
357 mutex_lock(&ide_setting_mtx);
358
359 setting = ide_find_setting(ide_generic_settings, name);
360 if (!setting) {
361 if (drive->settings)
362 setting = ide_find_setting(drive->settings, name);
363 if (!setting) {
364 mutex_unlock(&ide_setting_mtx);
365 goto parse_error;
366 }
367 }
368 if (for_real) {
369 mul_factor = setting->mulf ? setting->mulf(drive) : 1;
370 div_factor = setting->divf ? setting->divf(drive) : 1;
371 ide_write_setting(drive, setting, val * div_factor / mul_factor);
372 }
373 mutex_unlock(&ide_setting_mtx);
374 }
375 } while (!for_real++);
376 free_page((unsigned long)buf);
377 return count;
378parse_error:
379 free_page((unsigned long)buf);
380 printk("%s(): parse error\n", __func__);
381 return -EINVAL;
382}
383
384static const struct proc_ops ide_settings_proc_ops = {
385 .proc_open = ide_settings_proc_open,
386 .proc_read = seq_read,
387 .proc_lseek = seq_lseek,
388 .proc_release = single_release,
389 .proc_write = ide_settings_proc_write,
390};
391
392int ide_capacity_proc_show(struct seq_file *m, void *v)
393{
394 seq_printf(m, "%llu\n", (long long)0x7fffffff);
395 return 0;
396}
397EXPORT_SYMBOL_GPL(ide_capacity_proc_show);
398
399int ide_geometry_proc_show(struct seq_file *m, void *v)
400{
401 ide_drive_t *drive = (ide_drive_t *) m->private;
402
403 seq_printf(m, "physical %d/%d/%d\n",
404 drive->cyl, drive->head, drive->sect);
405 seq_printf(m, "logical %d/%d/%d\n",
406 drive->bios_cyl, drive->bios_head, drive->bios_sect);
407 return 0;
408}
409EXPORT_SYMBOL(ide_geometry_proc_show);
410
411static int ide_dmodel_proc_show(struct seq_file *seq, void *v)
412{
413 ide_drive_t *drive = (ide_drive_t *) seq->private;
414 char *m = (char *)&drive->id[ATA_ID_PROD];
415
416 seq_printf(seq, "%.40s\n", m[0] ? m : "(none)");
417 return 0;
418}
419
420static int ide_driver_proc_show(struct seq_file *m, void *v)
421{
422 ide_drive_t *drive = (ide_drive_t *)m->private;
423 struct device *dev = &drive->gendev;
424 struct ide_driver *ide_drv;
425
426 if (dev->driver) {
427 ide_drv = to_ide_driver(dev->driver);
428 seq_printf(m, "%s version %s\n",
429 dev->driver->name, ide_drv->version);
430 } else
431 seq_printf(m, "ide-default version 0.9.newide\n");
432 return 0;
433}
434
435static int ide_media_proc_show(struct seq_file *m, void *v)
436{
437 ide_drive_t *drive = (ide_drive_t *) m->private;
438 const char *media;
439
440 switch (drive->media) {
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;
447 }
448 seq_puts(m, media);
449 return 0;
450}
451
452static int ide_media_proc_open(struct inode *inode, struct file *file)
453{
454 return single_open(file, ide_media_proc_show, PDE_DATA(inode));
455}
456
457static 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
465static ide_proc_entry_t generic_drive_entries[] = {
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 },
470 {}
471};
472
473static void ide_add_proc_entries(struct proc_dir_entry *dir, ide_proc_entry_t *p, void *data)
474{
475 struct proc_dir_entry *ent;
476
477 if (!dir || !p)
478 return;
479 while (p->name != NULL) {
480 ent = proc_create_single_data(p->name, p->mode, dir, p->show, data);
481 if (!ent) return;
482 p++;
483 }
484}
485
486static void ide_remove_proc_entries(struct proc_dir_entry *dir, ide_proc_entry_t *p)
487{
488 if (!dir || !p)
489 return;
490 while (p->name != NULL) {
491 remove_proc_entry(p->name, dir);
492 p++;
493 }
494}
495
496void ide_proc_register_driver(ide_drive_t *drive, struct ide_driver *driver)
497{
498 mutex_lock(&ide_setting_mtx);
499 drive->settings = driver->proc_devsets(drive);
500 mutex_unlock(&ide_setting_mtx);
501
502 ide_add_proc_entries(drive->proc, driver->proc_entries(drive), drive);
503}
504
505EXPORT_SYMBOL(ide_proc_register_driver);
506
507
508
509
510
511
512
513
514
515
516
517
518void ide_proc_unregister_driver(ide_drive_t *drive, struct ide_driver *driver)
519{
520 ide_remove_proc_entries(drive->proc, driver->proc_entries(drive));
521
522 mutex_lock(&ide_setting_mtx);
523
524
525
526
527 drive->settings = NULL;
528 mutex_unlock(&ide_setting_mtx);
529}
530EXPORT_SYMBOL(ide_proc_unregister_driver);
531
532void ide_proc_port_register_devices(ide_hwif_t *hwif)
533{
534 struct proc_dir_entry *ent;
535 struct proc_dir_entry *parent = hwif->proc;
536 ide_drive_t *drive;
537 char name[64];
538 int i;
539
540 ide_port_for_each_dev(i, drive, hwif) {
541 if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0)
542 continue;
543
544 drive->proc = proc_mkdir(drive->name, parent);
545 if (drive->proc) {
546 ide_add_proc_entries(drive->proc, generic_drive_entries, drive);
547 proc_create_data("settings", S_IFREG|S_IRUSR|S_IWUSR,
548 drive->proc, &ide_settings_proc_ops,
549 drive);
550 }
551 sprintf(name, "ide%d/%s", (drive->name[2]-'a')/2, drive->name);
552 ent = proc_symlink(drive->name, proc_ide_root, name);
553 if (!ent) return;
554 }
555}
556
557void ide_proc_unregister_device(ide_drive_t *drive)
558{
559 if (drive->proc) {
560 remove_proc_entry("settings", drive->proc);
561 ide_remove_proc_entries(drive->proc, generic_drive_entries);
562 remove_proc_entry(drive->name, proc_ide_root);
563 remove_proc_entry(drive->name, drive->hwif->proc);
564 drive->proc = NULL;
565 }
566}
567
568static ide_proc_entry_t hwif_entries[] = {
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 },
572 {}
573};
574
575void ide_proc_register_port(ide_hwif_t *hwif)
576{
577 if (!hwif->proc) {
578 hwif->proc = proc_mkdir(hwif->name, proc_ide_root);
579
580 if (!hwif->proc)
581 return;
582
583 ide_add_proc_entries(hwif->proc, hwif_entries, hwif);
584 }
585}
586
587void ide_proc_unregister_port(ide_hwif_t *hwif)
588{
589 if (hwif->proc) {
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
596static int proc_print_driver(struct device_driver *drv, void *data)
597{
598 struct ide_driver *ide_drv = to_ide_driver(drv);
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
606static int ide_drivers_show(struct seq_file *s, void *p)
607{
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",
613 __func__, err);
614 return 0;
615}
616
617DEFINE_PROC_SHOW_ATTRIBUTE(ide_drivers);
618
619void proc_ide_create(void)
620{
621 proc_ide_root = proc_mkdir("ide", NULL);
622
623 if (!proc_ide_root)
624 return;
625
626 proc_create("drivers", 0, proc_ide_root, &ide_drivers_proc_ops);
627}
628
629void proc_ide_destroy(void)
630{
631 remove_proc_entry("drivers", proc_ide_root);
632 remove_proc_entry("ide", NULL);
633}
634
