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17#include <linux/module.h>
18
19#include <linux/uaccess.h>
20#include <linux/errno.h>
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>
26#include <linux/ide.h>
27#include <linux/seq_file.h>
28#include <linux/slab.h>
29
30#include <asm/io.h>
31
32static struct proc_dir_entry *proc_ide_root;
33
34static int ide_imodel_proc_show(struct seq_file *m, void *v)
35{
36 ide_hwif_t *hwif = (ide_hwif_t *) m->private;
37 const char *name;
38
39 switch (hwif->chipset) {
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;
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;
52 case ide_acorn: name = "acorn"; break;
53 default: name = "(unknown)"; break;
54 }
55 seq_printf(m, "%s\n", name);
56 return 0;
57}
58
59static int ide_mate_proc_show(struct seq_file *m, void *v)
60{
61 ide_hwif_t *hwif = (ide_hwif_t *) m->private;
62
63 if (hwif && hwif->mate)
64 seq_printf(m, "%s\n", hwif->mate->name);
65 else
66 seq_printf(m, "(none)\n");
67 return 0;
68}
69
70static 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;
76}
77
78static 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;
82
83 if (!drive) {
84 seq_putc(m, '\n');
85 return 0;
86 }
87
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;
94
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' : ' ');
98 }
99 } else
100 seq_putc(m, buf[0]);
101 kfree(buf);
102 return 0;
103}
104
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113
114
115static
116const struct ide_proc_devset *ide_find_setting(const struct ide_proc_devset *st,
117 char *name)
118{
119 while (st->name) {
120 if (strcmp(st->name, name) == 0)
121 break;
122 st++;
123 }
124 return st->name ? st : NULL;
125}
126
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139
140static int ide_read_setting(ide_drive_t *drive,
141 const struct ide_proc_devset *setting)
142{
143 const struct ide_devset *ds = setting->setting;
144 int val = -EINVAL;
145
146 if (ds->get)
147 val = ds->get(drive);
148
149 return val;
150}
151
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169
170static int ide_write_setting(ide_drive_t *drive,
171 const struct ide_proc_devset *setting, int val)
172{
173 const struct ide_devset *ds = setting->setting;
174
175 if (!capable(CAP_SYS_ADMIN))
176 return -EACCES;
177 if (!ds->set)
178 return -EPERM;
179 if ((ds->flags & DS_SYNC)
180 && (val < setting->min || val > setting->max))
181 return -EINVAL;
182 return ide_devset_execute(drive, ds, val);
183}
184
185ide_devset_get(xfer_rate, current_speed);
186
187static int set_xfer_rate (ide_drive_t *drive, int arg)
188{
189 struct ide_cmd cmd;
190
191 if (arg < XFER_PIO_0 || arg > XFER_UDMA_6)
192 return -EINVAL;
193
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;
198 cmd.valid.out.tf = IDE_VALID_FEATURE | IDE_VALID_NSECT;
199 cmd.valid.in.tf = IDE_VALID_NSECT;
200 cmd.tf_flags = IDE_TFLAG_SET_XFER;
201
202 return ide_no_data_taskfile(drive, &cmd);
203}
204
205ide_devset_rw(current_speed, xfer_rate);
206ide_devset_rw_field(init_speed, init_speed);
207ide_devset_rw_flag(nice1, IDE_DFLAG_NICE1);
208ide_devset_rw_field(number, dn);
209
210static 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),
220 { NULL },
221};
222
223static void proc_ide_settings_warn(void)
224{
225 printk_once(KERN_WARNING "Warning: /proc/ide/hd?/settings interface is "
226 "obsolete, and will be removed soon!\n");
227}
228
229static int ide_settings_proc_show(struct seq_file *m, void *v)
230{
231 const struct ide_proc_devset *setting, *g, *d;
232 const struct ide_devset *ds;
233 ide_drive_t *drive = (ide_drive_t *) m->private;
234 int rc, mul_factor, div_factor;
235
236 proc_ide_settings_warn();
237
238 mutex_lock(&ide_setting_mtx);
239 g = ide_generic_settings;
240 d = drive->settings;
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");
243 while (g->name || (d && d->name)) {
244
245 if (g->name && d && d->name) {
246 if (strcmp(d->name, g->name) < 0)
247 setting = d++;
248 else
249 setting = g++;
250 } else if (d && d->name) {
251 setting = d++;
252 } else
253 setting = g++;
254 mul_factor = setting->mulf ? setting->mulf(drive) : 1;
255 div_factor = setting->divf ? setting->divf(drive) : 1;
256 seq_printf(m, "%-24s", setting->name);
257 rc = ide_read_setting(drive, setting);
258 if (rc >= 0)
259 seq_printf(m, "%-16d", rc * mul_factor / div_factor);
260 else
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);
263 ds = setting->setting;
264 if (ds->get)
265 seq_printf(m, "r");
266 if (ds->set)
267 seq_printf(m, "w");
268 seq_printf(m, "\n");
269 }
270 mutex_unlock(&ide_setting_mtx);
271 return 0;
272}
273
274static int ide_settings_proc_open(struct inode *inode, struct file *file)
275{
276 return single_open(file, ide_settings_proc_show, PDE_DATA(inode));
277}
278
279#define MAX_LEN 30
280
281static ssize_t ide_settings_proc_write(struct file *file, const char __user *buffer,
282 size_t count, loff_t *pos)
283{
284 ide_drive_t *drive = PDE_DATA(file_inode(file));
285 char name[MAX_LEN + 1];
286 int for_real = 0, mul_factor, div_factor;
287 unsigned long n;
288
289 const struct ide_proc_devset *setting;
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
313
314 while (count && isspace(*s)) {
315 --count;
316 ++s;
317 }
318
319
320
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
356 mutex_lock(&ide_setting_mtx);
357
358 setting = ide_find_setting(ide_generic_settings, name);
359 if (!setting) {
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);
371 }
372 mutex_unlock(&ide_setting_mtx);
373 }
374 } while (!for_real++);
375 free_page((unsigned long)buf);
376 return count;
377parse_error:
378 free_page((unsigned long)buf);
379 printk("%s(): parse error\n", __func__);
380 return -EINVAL;
381}
382
383static 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
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
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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("setting", S_IFREG|S_IRUSR|S_IWUSR,
548 drive->proc, &ide_settings_proc_fops,
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
617static int ide_drivers_open(struct inode *inode, struct file *file)
618{
619 return single_open(file, &ide_drivers_show, NULL);
620}
621
622static const struct file_operations ide_drivers_operations = {
623 .owner = THIS_MODULE,
624 .open = ide_drivers_open,
625 .read = seq_read,
626 .llseek = seq_lseek,
627 .release = single_release,
628};
629
630void proc_ide_create(void)
631{
632 proc_ide_root = proc_mkdir("ide", NULL);
633
634 if (!proc_ide_root)
635 return;
636
637 proc_create("drivers", 0, proc_ide_root, &ide_drivers_operations);
638}
639
640void proc_ide_destroy(void)
641{
642 remove_proc_entry("drivers", proc_ide_root);
643 remove_proc_entry("ide", NULL);
644}
645
