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1/* Sysctl interface for parport devices.
2 *
3 * Authors: David Campbell
4 * Tim Waugh <tim@cyberelk.demon.co.uk>
5 * Philip Blundell <philb@gnu.org>
6 * Andrea Arcangeli
7 * Riccardo Facchetti <fizban@tin.it>
8 *
9 * based on work by Grant Guenther <grant@torque.net>
10 * and Philip Blundell
11 *
12 * Cleaned up include files - Russell King <linux@arm.uk.linux.org>
13 */
14
15#include <linux/string.h>
16#include <linux/init.h>
17#include <linux/module.h>
18#include <linux/errno.h>
19#include <linux/kernel.h>
20#include <linux/slab.h>
21#include <linux/parport.h>
22#include <linux/ctype.h>
23#include <linux/sysctl.h>
24
25#include <asm/uaccess.h>
26
27#if defined(CONFIG_SYSCTL) && defined(CONFIG_PROC_FS)
28
29#define PARPORT_MIN_TIMESLICE_VALUE 1ul
30#define PARPORT_MAX_TIMESLICE_VALUE ((unsigned long) HZ)
31#define PARPORT_MIN_SPINTIME_VALUE 1
32#define PARPORT_MAX_SPINTIME_VALUE 1000
33
34static int do_active_device(ctl_table *table, int write,
35 void __user *result, size_t *lenp, loff_t *ppos)
36{
37 struct parport *port = (struct parport *)table->extra1;
38 char buffer[256];
39 struct pardevice *dev;
40 int len = 0;
41
42 if (write) /* can't happen anyway */
43 return -EACCES;
44
45 if (*ppos) {
46 *lenp = 0;
47 return 0;
48 }
49
50 for (dev = port->devices; dev ; dev = dev->next) {
51 if(dev == port->cad) {
52 len += sprintf(buffer, "%s\n", dev->name);
53 }
54 }
55
56 if(!len) {
57 len += sprintf(buffer, "%s\n", "none");
58 }
59
60 if (len > *lenp)
61 len = *lenp;
62 else
63 *lenp = len;
64
65 *ppos += len;
66
67 return copy_to_user(result, buffer, len) ? -EFAULT : 0;
68}
69
70#ifdef CONFIG_PARPORT_1284
71static int do_autoprobe(ctl_table *table, int write,
72 void __user *result, size_t *lenp, loff_t *ppos)
73{
74 struct parport_device_info *info = table->extra2;
75 const char *str;
76 char buffer[256];
77 int len = 0;
78
79 if (write) /* permissions stop this */
80 return -EACCES;
81
82 if (*ppos) {
83 *lenp = 0;
84 return 0;
85 }
86
87 if ((str = info->class_name) != NULL)
88 len += sprintf (buffer + len, "CLASS:%s;\n", str);
89
90 if ((str = info->model) != NULL)
91 len += sprintf (buffer + len, "MODEL:%s;\n", str);
92
93 if ((str = info->mfr) != NULL)
94 len += sprintf (buffer + len, "MANUFACTURER:%s;\n", str);
95
96 if ((str = info->description) != NULL)
97 len += sprintf (buffer + len, "DESCRIPTION:%s;\n", str);
98
99 if ((str = info->cmdset) != NULL)
100 len += sprintf (buffer + len, "COMMAND SET:%s;\n", str);
101
102 if (len > *lenp)
103 len = *lenp;
104 else
105 *lenp = len;
106
107 *ppos += len;
108
109 return copy_to_user (result, buffer, len) ? -EFAULT : 0;
110}
111#endif /* IEEE1284.3 support. */
112
113static int do_hardware_base_addr (ctl_table *table, int write,
114 void __user *result,
115 size_t *lenp, loff_t *ppos)
116{
117 struct parport *port = (struct parport *)table->extra1;
118 char buffer[20];
119 int len = 0;
120
121 if (*ppos) {
122 *lenp = 0;
123 return 0;
124 }
125
126 if (write) /* permissions prevent this anyway */
127 return -EACCES;
128
129 len += sprintf (buffer, "%lu\t%lu\n", port->base, port->base_hi);
130
131 if (len > *lenp)
132 len = *lenp;
133 else
134 *lenp = len;
135
136 *ppos += len;
137
138 return copy_to_user(result, buffer, len) ? -EFAULT : 0;
139}
140
141static int do_hardware_irq (ctl_table *table, int write,
142 void __user *result,
143 size_t *lenp, loff_t *ppos)
144{
145 struct parport *port = (struct parport *)table->extra1;
146 char buffer[20];
147 int len = 0;
148
149 if (*ppos) {
150 *lenp = 0;
151 return 0;
152 }
153
154 if (write) /* permissions prevent this anyway */
155 return -EACCES;
156
157 len += sprintf (buffer, "%d\n", port->irq);
158
159 if (len > *lenp)
160 len = *lenp;
161 else
162 *lenp = len;
163
164 *ppos += len;
165
166 return copy_to_user(result, buffer, len) ? -EFAULT : 0;
167}
168
169static int do_hardware_dma (ctl_table *table, int write,
170 void __user *result,
171 size_t *lenp, loff_t *ppos)
172{
173 struct parport *port = (struct parport *)table->extra1;
174 char buffer[20];
175 int len = 0;
176
177 if (*ppos) {
178 *lenp = 0;
179 return 0;
180 }
181
182 if (write) /* permissions prevent this anyway */
183 return -EACCES;
184
185 len += sprintf (buffer, "%d\n", port->dma);
186
187 if (len > *lenp)
188 len = *lenp;
189 else
190 *lenp = len;
191
192 *ppos += len;
193
194 return copy_to_user(result, buffer, len) ? -EFAULT : 0;
195}
196
197static int do_hardware_modes (ctl_table *table, int write,
198 void __user *result,
199 size_t *lenp, loff_t *ppos)
200{
201 struct parport *port = (struct parport *)table->extra1;
202 char buffer[40];
203 int len = 0;
204
205 if (*ppos) {
206 *lenp = 0;
207 return 0;
208 }
209
210 if (write) /* permissions prevent this anyway */
211 return -EACCES;
212
213 {
214#define printmode(x) {if(port->modes&PARPORT_MODE_##x){len+=sprintf(buffer+len,"%s%s",f?",":"",#x);f++;}}
215 int f = 0;
216 printmode(PCSPP);
217 printmode(TRISTATE);
218 printmode(COMPAT);
219 printmode(EPP);
220 printmode(ECP);
221 printmode(DMA);
222#undef printmode
223 }
224 buffer[len++] = '\n';
225
226 if (len > *lenp)
227 len = *lenp;
228 else
229 *lenp = len;
230
231 *ppos += len;
232
233 return copy_to_user(result, buffer, len) ? -EFAULT : 0;
234}
235
236#define PARPORT_PORT_DIR(CHILD) { .procname = NULL, .mode = 0555, .child = CHILD }
237#define PARPORT_PARPORT_DIR(CHILD) { .procname = "parport", \
238 .mode = 0555, .child = CHILD }
239#define PARPORT_DEV_DIR(CHILD) { .procname = "dev", .mode = 0555, .child = CHILD }
240#define PARPORT_DEVICES_ROOT_DIR { .procname = "devices", \
241 .mode = 0555, .child = NULL }
242
243static const unsigned long parport_min_timeslice_value =
244PARPORT_MIN_TIMESLICE_VALUE;
245
246static const unsigned long parport_max_timeslice_value =
247PARPORT_MAX_TIMESLICE_VALUE;
248
249static const int parport_min_spintime_value =
250PARPORT_MIN_SPINTIME_VALUE;
251
252static const int parport_max_spintime_value =
253PARPORT_MAX_SPINTIME_VALUE;
254
255
256struct parport_sysctl_table {
257 struct ctl_table_header *sysctl_header;
258 ctl_table vars[12];
259 ctl_table device_dir[2];
260 ctl_table port_dir[2];
261 ctl_table parport_dir[2];
262 ctl_table dev_dir[2];
263};
264
265static const struct parport_sysctl_table parport_sysctl_template = {
266 .sysctl_header = NULL,
267 {
268 {
269 .procname = "spintime",
270 .data = NULL,
271 .maxlen = sizeof(int),
272 .mode = 0644,
273 .proc_handler = proc_dointvec_minmax,
274 .extra1 = (void*) &parport_min_spintime_value,
275 .extra2 = (void*) &parport_max_spintime_value
276 },
277 {
278 .procname = "base-addr",
279 .data = NULL,
280 .maxlen = 0,
281 .mode = 0444,
282 .proc_handler = do_hardware_base_addr
283 },
284 {
285 .procname = "irq",
286 .data = NULL,
287 .maxlen = 0,
288 .mode = 0444,
289 .proc_handler = do_hardware_irq
290 },
291 {
292 .procname = "dma",
293 .data = NULL,
294 .maxlen = 0,
295 .mode = 0444,
296 .proc_handler = do_hardware_dma
297 },
298 {
299 .procname = "modes",
300 .data = NULL,
301 .maxlen = 0,
302 .mode = 0444,
303 .proc_handler = do_hardware_modes
304 },
305 PARPORT_DEVICES_ROOT_DIR,
306#ifdef CONFIG_PARPORT_1284
307 {
308 .procname = "autoprobe",
309 .data = NULL,
310 .maxlen = 0,
311 .mode = 0444,
312 .proc_handler = do_autoprobe
313 },
314 {
315 .procname = "autoprobe0",
316 .data = NULL,
317 .maxlen = 0,
318 .mode = 0444,
319 .proc_handler = do_autoprobe
320 },
321 {
322 .procname = "autoprobe1",
323 .data = NULL,
324 .maxlen = 0,
325 .mode = 0444,
326 .proc_handler = do_autoprobe
327 },
328 {
329 .procname = "autoprobe2",
330 .data = NULL,
331 .maxlen = 0,
332 .mode = 0444,
333 .proc_handler = do_autoprobe
334 },
335 {
336 .procname = "autoprobe3",
337 .data = NULL,
338 .maxlen = 0,
339 .mode = 0444,
340 .proc_handler = do_autoprobe
341 },
342#endif /* IEEE 1284 support */
343 {}
344 },
345 {
346 {
347 .procname = "active",
348 .data = NULL,
349 .maxlen = 0,
350 .mode = 0444,
351 .proc_handler = do_active_device
352 },
353 {}
354 },
355 {
356 PARPORT_PORT_DIR(NULL),
357 {}
358 },
359 {
360 PARPORT_PARPORT_DIR(NULL),
361 {}
362 },
363 {
364 PARPORT_DEV_DIR(NULL),
365 {}
366 }
367};
368
369struct parport_device_sysctl_table
370{
371 struct ctl_table_header *sysctl_header;
372 ctl_table vars[2];
373 ctl_table device_dir[2];
374 ctl_table devices_root_dir[2];
375 ctl_table port_dir[2];
376 ctl_table parport_dir[2];
377 ctl_table dev_dir[2];
378};
379
380static const struct parport_device_sysctl_table
381parport_device_sysctl_template = {
382 .sysctl_header = NULL,
383 {
384 {
385 .procname = "timeslice",
386 .data = NULL,
387 .maxlen = sizeof(unsigned long),
388 .mode = 0644,
389 .proc_handler = proc_doulongvec_ms_jiffies_minmax,
390 .extra1 = (void*) &parport_min_timeslice_value,
391 .extra2 = (void*) &parport_max_timeslice_value
392 },
393 },
394 {
395 {
396 .procname = NULL,
397 .data = NULL,
398 .maxlen = 0,
399 .mode = 0555,
400 .child = NULL
401 },
402 {}
403 },
404 {
405 PARPORT_DEVICES_ROOT_DIR,
406 {}
407 },
408 {
409 PARPORT_PORT_DIR(NULL),
410 {}
411 },
412 {
413 PARPORT_PARPORT_DIR(NULL),
414 {}
415 },
416 {
417 PARPORT_DEV_DIR(NULL),
418 {}
419 }
420};
421
422struct parport_default_sysctl_table
423{
424 struct ctl_table_header *sysctl_header;
425 ctl_table vars[3];
426 ctl_table default_dir[2];
427 ctl_table parport_dir[2];
428 ctl_table dev_dir[2];
429};
430
431static struct parport_default_sysctl_table
432parport_default_sysctl_table = {
433 .sysctl_header = NULL,
434 {
435 {
436 .procname = "timeslice",
437 .data = &parport_default_timeslice,
438 .maxlen = sizeof(parport_default_timeslice),
439 .mode = 0644,
440 .proc_handler = proc_doulongvec_ms_jiffies_minmax,
441 .extra1 = (void*) &parport_min_timeslice_value,
442 .extra2 = (void*) &parport_max_timeslice_value
443 },
444 {
445 .procname = "spintime",
446 .data = &parport_default_spintime,
447 .maxlen = sizeof(parport_default_spintime),
448 .mode = 0644,
449 .proc_handler = proc_dointvec_minmax,
450 .extra1 = (void*) &parport_min_spintime_value,
451 .extra2 = (void*) &parport_max_spintime_value
452 },
453 {}
454 },
455 {
456 {
457 .procname = "default",
458 .mode = 0555,
459 .child = parport_default_sysctl_table.vars
460 },
461 {}
462 },
463 {
464 PARPORT_PARPORT_DIR(parport_default_sysctl_table.default_dir),
465 {}
466 },
467 {
468 PARPORT_DEV_DIR(parport_default_sysctl_table.parport_dir),
469 {}
470 }
471};
472
473
474int parport_proc_register(struct parport *port)
475{
476 struct parport_sysctl_table *t;
477 int i;
478
479 t = kmalloc(sizeof(*t), GFP_KERNEL);
480 if (t == NULL)
481 return -ENOMEM;
482 memcpy(t, &parport_sysctl_template, sizeof(*t));
483
484 t->device_dir[0].extra1 = port;
485
486 for (i = 0; i < 5; i++)
487 t->vars[i].extra1 = port;
488
489 t->vars[0].data = &port->spintime;
490 t->vars[5].child = t->device_dir;
491
492 for (i = 0; i < 5; i++)
493 t->vars[6 + i].extra2 = &port->probe_info[i];
494
495 t->port_dir[0].procname = port->name;
496
497 t->port_dir[0].child = t->vars;
498 t->parport_dir[0].child = t->port_dir;
499 t->dev_dir[0].child = t->parport_dir;
500
501 t->sysctl_header = register_sysctl_table(t->dev_dir);
502 if (t->sysctl_header == NULL) {
503 kfree(t);
504 t = NULL;
505 }
506 port->sysctl_table = t;
507 return 0;
508}
509
510int parport_proc_unregister(struct parport *port)
511{
512 if (port->sysctl_table) {
513 struct parport_sysctl_table *t = port->sysctl_table;
514 port->sysctl_table = NULL;
515 unregister_sysctl_table(t->sysctl_header);
516 kfree(t);
517 }
518 return 0;
519}
520
521int parport_device_proc_register(struct pardevice *device)
522{
523 struct parport_device_sysctl_table *t;
524 struct parport * port = device->port;
525
526 t = kmalloc(sizeof(*t), GFP_KERNEL);
527 if (t == NULL)
528 return -ENOMEM;
529 memcpy(t, &parport_device_sysctl_template, sizeof(*t));
530
531 t->dev_dir[0].child = t->parport_dir;
532 t->parport_dir[0].child = t->port_dir;
533 t->port_dir[0].procname = port->name;
534 t->port_dir[0].child = t->devices_root_dir;
535 t->devices_root_dir[0].child = t->device_dir;
536
537 t->device_dir[0].procname = device->name;
538 t->device_dir[0].child = t->vars;
539 t->vars[0].data = &device->timeslice;
540
541 t->sysctl_header = register_sysctl_table(t->dev_dir);
542 if (t->sysctl_header == NULL) {
543 kfree(t);
544 t = NULL;
545 }
546 device->sysctl_table = t;
547 return 0;
548}
549
550int parport_device_proc_unregister(struct pardevice *device)
551{
552 if (device->sysctl_table) {
553 struct parport_device_sysctl_table *t = device->sysctl_table;
554 device->sysctl_table = NULL;
555 unregister_sysctl_table(t->sysctl_header);
556 kfree(t);
557 }
558 return 0;
559}
560
561static int __init parport_default_proc_register(void)
562{
563 parport_default_sysctl_table.sysctl_header =
564 register_sysctl_table(parport_default_sysctl_table.dev_dir);
565 return 0;
566}
567
568static void __exit parport_default_proc_unregister(void)
569{
570 if (parport_default_sysctl_table.sysctl_header) {
571 unregister_sysctl_table(parport_default_sysctl_table.
572 sysctl_header);
573 parport_default_sysctl_table.sysctl_header = NULL;
574 }
575}
576
577#else /* no sysctl or no procfs*/
578
579int parport_proc_register(struct parport *pp)
580{
581 return 0;
582}
583
584int parport_proc_unregister(struct parport *pp)
585{
586 return 0;
587}
588
589int parport_device_proc_register(struct pardevice *device)
590{
591 return 0;
592}
593
594int parport_device_proc_unregister(struct pardevice *device)
595{
596 return 0;
597}
598
599static int __init parport_default_proc_register (void)
600{
601 return 0;
602}
603
604static void __exit parport_default_proc_unregister (void)
605{
606}
607#endif
608
609module_init(parport_default_proc_register)
610module_exit(parport_default_proc_unregister)
1/* Sysctl interface for parport devices.
2 *
3 * Authors: David Campbell
4 * Tim Waugh <tim@cyberelk.demon.co.uk>
5 * Philip Blundell <philb@gnu.org>
6 * Andrea Arcangeli
7 * Riccardo Facchetti <fizban@tin.it>
8 *
9 * based on work by Grant Guenther <grant@torque.net>
10 * and Philip Blundell
11 *
12 * Cleaned up include files - Russell King <linux@arm.uk.linux.org>
13 */
14
15#include <linux/string.h>
16#include <linux/init.h>
17#include <linux/module.h>
18#include <linux/errno.h>
19#include <linux/kernel.h>
20#include <linux/slab.h>
21#include <linux/parport.h>
22#include <linux/ctype.h>
23#include <linux/sysctl.h>
24#include <linux/device.h>
25
26#include <asm/uaccess.h>
27
28#if defined(CONFIG_SYSCTL) && defined(CONFIG_PROC_FS)
29
30#define PARPORT_MIN_TIMESLICE_VALUE 1ul
31#define PARPORT_MAX_TIMESLICE_VALUE ((unsigned long) HZ)
32#define PARPORT_MIN_SPINTIME_VALUE 1
33#define PARPORT_MAX_SPINTIME_VALUE 1000
34
35static int do_active_device(struct ctl_table *table, int write,
36 void __user *result, size_t *lenp, loff_t *ppos)
37{
38 struct parport *port = (struct parport *)table->extra1;
39 char buffer[256];
40 struct pardevice *dev;
41 int len = 0;
42
43 if (write) /* can't happen anyway */
44 return -EACCES;
45
46 if (*ppos) {
47 *lenp = 0;
48 return 0;
49 }
50
51 for (dev = port->devices; dev ; dev = dev->next) {
52 if(dev == port->cad) {
53 len += sprintf(buffer, "%s\n", dev->name);
54 }
55 }
56
57 if(!len) {
58 len += sprintf(buffer, "%s\n", "none");
59 }
60
61 if (len > *lenp)
62 len = *lenp;
63 else
64 *lenp = len;
65
66 *ppos += len;
67
68 return copy_to_user(result, buffer, len) ? -EFAULT : 0;
69}
70
71#ifdef CONFIG_PARPORT_1284
72static int do_autoprobe(struct ctl_table *table, int write,
73 void __user *result, size_t *lenp, loff_t *ppos)
74{
75 struct parport_device_info *info = table->extra2;
76 const char *str;
77 char buffer[256];
78 int len = 0;
79
80 if (write) /* permissions stop this */
81 return -EACCES;
82
83 if (*ppos) {
84 *lenp = 0;
85 return 0;
86 }
87
88 if ((str = info->class_name) != NULL)
89 len += sprintf (buffer + len, "CLASS:%s;\n", str);
90
91 if ((str = info->model) != NULL)
92 len += sprintf (buffer + len, "MODEL:%s;\n", str);
93
94 if ((str = info->mfr) != NULL)
95 len += sprintf (buffer + len, "MANUFACTURER:%s;\n", str);
96
97 if ((str = info->description) != NULL)
98 len += sprintf (buffer + len, "DESCRIPTION:%s;\n", str);
99
100 if ((str = info->cmdset) != NULL)
101 len += sprintf (buffer + len, "COMMAND SET:%s;\n", str);
102
103 if (len > *lenp)
104 len = *lenp;
105 else
106 *lenp = len;
107
108 *ppos += len;
109
110 return copy_to_user (result, buffer, len) ? -EFAULT : 0;
111}
112#endif /* IEEE1284.3 support. */
113
114static int do_hardware_base_addr(struct ctl_table *table, int write,
115 void __user *result,
116 size_t *lenp, loff_t *ppos)
117{
118 struct parport *port = (struct parport *)table->extra1;
119 char buffer[20];
120 int len = 0;
121
122 if (*ppos) {
123 *lenp = 0;
124 return 0;
125 }
126
127 if (write) /* permissions prevent this anyway */
128 return -EACCES;
129
130 len += sprintf (buffer, "%lu\t%lu\n", port->base, port->base_hi);
131
132 if (len > *lenp)
133 len = *lenp;
134 else
135 *lenp = len;
136
137 *ppos += len;
138
139 return copy_to_user(result, buffer, len) ? -EFAULT : 0;
140}
141
142static int do_hardware_irq(struct ctl_table *table, int write,
143 void __user *result,
144 size_t *lenp, loff_t *ppos)
145{
146 struct parport *port = (struct parport *)table->extra1;
147 char buffer[20];
148 int len = 0;
149
150 if (*ppos) {
151 *lenp = 0;
152 return 0;
153 }
154
155 if (write) /* permissions prevent this anyway */
156 return -EACCES;
157
158 len += sprintf (buffer, "%d\n", port->irq);
159
160 if (len > *lenp)
161 len = *lenp;
162 else
163 *lenp = len;
164
165 *ppos += len;
166
167 return copy_to_user(result, buffer, len) ? -EFAULT : 0;
168}
169
170static int do_hardware_dma(struct ctl_table *table, int write,
171 void __user *result,
172 size_t *lenp, loff_t *ppos)
173{
174 struct parport *port = (struct parport *)table->extra1;
175 char buffer[20];
176 int len = 0;
177
178 if (*ppos) {
179 *lenp = 0;
180 return 0;
181 }
182
183 if (write) /* permissions prevent this anyway */
184 return -EACCES;
185
186 len += sprintf (buffer, "%d\n", port->dma);
187
188 if (len > *lenp)
189 len = *lenp;
190 else
191 *lenp = len;
192
193 *ppos += len;
194
195 return copy_to_user(result, buffer, len) ? -EFAULT : 0;
196}
197
198static int do_hardware_modes(struct ctl_table *table, int write,
199 void __user *result,
200 size_t *lenp, loff_t *ppos)
201{
202 struct parport *port = (struct parport *)table->extra1;
203 char buffer[40];
204 int len = 0;
205
206 if (*ppos) {
207 *lenp = 0;
208 return 0;
209 }
210
211 if (write) /* permissions prevent this anyway */
212 return -EACCES;
213
214 {
215#define printmode(x) {if(port->modes&PARPORT_MODE_##x){len+=sprintf(buffer+len,"%s%s",f?",":"",#x);f++;}}
216 int f = 0;
217 printmode(PCSPP);
218 printmode(TRISTATE);
219 printmode(COMPAT);
220 printmode(EPP);
221 printmode(ECP);
222 printmode(DMA);
223#undef printmode
224 }
225 buffer[len++] = '\n';
226
227 if (len > *lenp)
228 len = *lenp;
229 else
230 *lenp = len;
231
232 *ppos += len;
233
234 return copy_to_user(result, buffer, len) ? -EFAULT : 0;
235}
236
237#define PARPORT_PORT_DIR(CHILD) { .procname = NULL, .mode = 0555, .child = CHILD }
238#define PARPORT_PARPORT_DIR(CHILD) { .procname = "parport", \
239 .mode = 0555, .child = CHILD }
240#define PARPORT_DEV_DIR(CHILD) { .procname = "dev", .mode = 0555, .child = CHILD }
241#define PARPORT_DEVICES_ROOT_DIR { .procname = "devices", \
242 .mode = 0555, .child = NULL }
243
244static const unsigned long parport_min_timeslice_value =
245PARPORT_MIN_TIMESLICE_VALUE;
246
247static const unsigned long parport_max_timeslice_value =
248PARPORT_MAX_TIMESLICE_VALUE;
249
250static const int parport_min_spintime_value =
251PARPORT_MIN_SPINTIME_VALUE;
252
253static const int parport_max_spintime_value =
254PARPORT_MAX_SPINTIME_VALUE;
255
256
257struct parport_sysctl_table {
258 struct ctl_table_header *sysctl_header;
259 struct ctl_table vars[12];
260 struct ctl_table device_dir[2];
261 struct ctl_table port_dir[2];
262 struct ctl_table parport_dir[2];
263 struct ctl_table dev_dir[2];
264};
265
266static const struct parport_sysctl_table parport_sysctl_template = {
267 .sysctl_header = NULL,
268 {
269 {
270 .procname = "spintime",
271 .data = NULL,
272 .maxlen = sizeof(int),
273 .mode = 0644,
274 .proc_handler = proc_dointvec_minmax,
275 .extra1 = (void*) &parport_min_spintime_value,
276 .extra2 = (void*) &parport_max_spintime_value
277 },
278 {
279 .procname = "base-addr",
280 .data = NULL,
281 .maxlen = 0,
282 .mode = 0444,
283 .proc_handler = do_hardware_base_addr
284 },
285 {
286 .procname = "irq",
287 .data = NULL,
288 .maxlen = 0,
289 .mode = 0444,
290 .proc_handler = do_hardware_irq
291 },
292 {
293 .procname = "dma",
294 .data = NULL,
295 .maxlen = 0,
296 .mode = 0444,
297 .proc_handler = do_hardware_dma
298 },
299 {
300 .procname = "modes",
301 .data = NULL,
302 .maxlen = 0,
303 .mode = 0444,
304 .proc_handler = do_hardware_modes
305 },
306 PARPORT_DEVICES_ROOT_DIR,
307#ifdef CONFIG_PARPORT_1284
308 {
309 .procname = "autoprobe",
310 .data = NULL,
311 .maxlen = 0,
312 .mode = 0444,
313 .proc_handler = do_autoprobe
314 },
315 {
316 .procname = "autoprobe0",
317 .data = NULL,
318 .maxlen = 0,
319 .mode = 0444,
320 .proc_handler = do_autoprobe
321 },
322 {
323 .procname = "autoprobe1",
324 .data = NULL,
325 .maxlen = 0,
326 .mode = 0444,
327 .proc_handler = do_autoprobe
328 },
329 {
330 .procname = "autoprobe2",
331 .data = NULL,
332 .maxlen = 0,
333 .mode = 0444,
334 .proc_handler = do_autoprobe
335 },
336 {
337 .procname = "autoprobe3",
338 .data = NULL,
339 .maxlen = 0,
340 .mode = 0444,
341 .proc_handler = do_autoprobe
342 },
343#endif /* IEEE 1284 support */
344 {}
345 },
346 {
347 {
348 .procname = "active",
349 .data = NULL,
350 .maxlen = 0,
351 .mode = 0444,
352 .proc_handler = do_active_device
353 },
354 {}
355 },
356 {
357 PARPORT_PORT_DIR(NULL),
358 {}
359 },
360 {
361 PARPORT_PARPORT_DIR(NULL),
362 {}
363 },
364 {
365 PARPORT_DEV_DIR(NULL),
366 {}
367 }
368};
369
370struct parport_device_sysctl_table
371{
372 struct ctl_table_header *sysctl_header;
373 struct ctl_table vars[2];
374 struct ctl_table device_dir[2];
375 struct ctl_table devices_root_dir[2];
376 struct ctl_table port_dir[2];
377 struct ctl_table parport_dir[2];
378 struct ctl_table dev_dir[2];
379};
380
381static const struct parport_device_sysctl_table
382parport_device_sysctl_template = {
383 .sysctl_header = NULL,
384 {
385 {
386 .procname = "timeslice",
387 .data = NULL,
388 .maxlen = sizeof(unsigned long),
389 .mode = 0644,
390 .proc_handler = proc_doulongvec_ms_jiffies_minmax,
391 .extra1 = (void*) &parport_min_timeslice_value,
392 .extra2 = (void*) &parport_max_timeslice_value
393 },
394 },
395 {
396 {
397 .procname = NULL,
398 .data = NULL,
399 .maxlen = 0,
400 .mode = 0555,
401 .child = NULL
402 },
403 {}
404 },
405 {
406 PARPORT_DEVICES_ROOT_DIR,
407 {}
408 },
409 {
410 PARPORT_PORT_DIR(NULL),
411 {}
412 },
413 {
414 PARPORT_PARPORT_DIR(NULL),
415 {}
416 },
417 {
418 PARPORT_DEV_DIR(NULL),
419 {}
420 }
421};
422
423struct parport_default_sysctl_table
424{
425 struct ctl_table_header *sysctl_header;
426 struct ctl_table vars[3];
427 struct ctl_table default_dir[2];
428 struct ctl_table parport_dir[2];
429 struct ctl_table dev_dir[2];
430};
431
432static struct parport_default_sysctl_table
433parport_default_sysctl_table = {
434 .sysctl_header = NULL,
435 {
436 {
437 .procname = "timeslice",
438 .data = &parport_default_timeslice,
439 .maxlen = sizeof(parport_default_timeslice),
440 .mode = 0644,
441 .proc_handler = proc_doulongvec_ms_jiffies_minmax,
442 .extra1 = (void*) &parport_min_timeslice_value,
443 .extra2 = (void*) &parport_max_timeslice_value
444 },
445 {
446 .procname = "spintime",
447 .data = &parport_default_spintime,
448 .maxlen = sizeof(parport_default_spintime),
449 .mode = 0644,
450 .proc_handler = proc_dointvec_minmax,
451 .extra1 = (void*) &parport_min_spintime_value,
452 .extra2 = (void*) &parport_max_spintime_value
453 },
454 {}
455 },
456 {
457 {
458 .procname = "default",
459 .mode = 0555,
460 .child = parport_default_sysctl_table.vars
461 },
462 {}
463 },
464 {
465 PARPORT_PARPORT_DIR(parport_default_sysctl_table.default_dir),
466 {}
467 },
468 {
469 PARPORT_DEV_DIR(parport_default_sysctl_table.parport_dir),
470 {}
471 }
472};
473
474
475int parport_proc_register(struct parport *port)
476{
477 struct parport_sysctl_table *t;
478 int i;
479
480 t = kmemdup(&parport_sysctl_template, sizeof(*t), GFP_KERNEL);
481 if (t == NULL)
482 return -ENOMEM;
483
484 t->device_dir[0].extra1 = port;
485
486 for (i = 0; i < 5; i++)
487 t->vars[i].extra1 = port;
488
489 t->vars[0].data = &port->spintime;
490 t->vars[5].child = t->device_dir;
491
492 for (i = 0; i < 5; i++)
493 t->vars[6 + i].extra2 = &port->probe_info[i];
494
495 t->port_dir[0].procname = port->name;
496
497 t->port_dir[0].child = t->vars;
498 t->parport_dir[0].child = t->port_dir;
499 t->dev_dir[0].child = t->parport_dir;
500
501 t->sysctl_header = register_sysctl_table(t->dev_dir);
502 if (t->sysctl_header == NULL) {
503 kfree(t);
504 t = NULL;
505 }
506 port->sysctl_table = t;
507 return 0;
508}
509
510int parport_proc_unregister(struct parport *port)
511{
512 if (port->sysctl_table) {
513 struct parport_sysctl_table *t = port->sysctl_table;
514 port->sysctl_table = NULL;
515 unregister_sysctl_table(t->sysctl_header);
516 kfree(t);
517 }
518 return 0;
519}
520
521int parport_device_proc_register(struct pardevice *device)
522{
523 struct parport_device_sysctl_table *t;
524 struct parport * port = device->port;
525
526 t = kmemdup(&parport_device_sysctl_template, sizeof(*t), GFP_KERNEL);
527 if (t == NULL)
528 return -ENOMEM;
529
530 t->dev_dir[0].child = t->parport_dir;
531 t->parport_dir[0].child = t->port_dir;
532 t->port_dir[0].procname = port->name;
533 t->port_dir[0].child = t->devices_root_dir;
534 t->devices_root_dir[0].child = t->device_dir;
535
536 t->device_dir[0].procname = device->name;
537 t->device_dir[0].child = t->vars;
538 t->vars[0].data = &device->timeslice;
539
540 t->sysctl_header = register_sysctl_table(t->dev_dir);
541 if (t->sysctl_header == NULL) {
542 kfree(t);
543 t = NULL;
544 }
545 device->sysctl_table = t;
546 return 0;
547}
548
549int parport_device_proc_unregister(struct pardevice *device)
550{
551 if (device->sysctl_table) {
552 struct parport_device_sysctl_table *t = device->sysctl_table;
553 device->sysctl_table = NULL;
554 unregister_sysctl_table(t->sysctl_header);
555 kfree(t);
556 }
557 return 0;
558}
559
560static int __init parport_default_proc_register(void)
561{
562 int ret;
563
564 parport_default_sysctl_table.sysctl_header =
565 register_sysctl_table(parport_default_sysctl_table.dev_dir);
566 if (!parport_default_sysctl_table.sysctl_header)
567 return -ENOMEM;
568 ret = parport_bus_init();
569 if (ret) {
570 unregister_sysctl_table(parport_default_sysctl_table.
571 sysctl_header);
572 return ret;
573 }
574 return 0;
575}
576
577static void __exit parport_default_proc_unregister(void)
578{
579 if (parport_default_sysctl_table.sysctl_header) {
580 unregister_sysctl_table(parport_default_sysctl_table.
581 sysctl_header);
582 parport_default_sysctl_table.sysctl_header = NULL;
583 }
584 parport_bus_exit();
585}
586
587#else /* no sysctl or no procfs*/
588
589int parport_proc_register(struct parport *pp)
590{
591 return 0;
592}
593
594int parport_proc_unregister(struct parport *pp)
595{
596 return 0;
597}
598
599int parport_device_proc_register(struct pardevice *device)
600{
601 return 0;
602}
603
604int parport_device_proc_unregister(struct pardevice *device)
605{
606 return 0;
607}
608
609static int __init parport_default_proc_register (void)
610{
611 return parport_bus_init();
612}
613
614static void __exit parport_default_proc_unregister (void)
615{
616 parport_bus_exit();
617}
618#endif
619
620module_init(parport_default_proc_register)
621module_exit(parport_default_proc_unregister)