2 * rsrc_nonstatic.c -- Resource management routines for !SS_CAP_STATIC_MAP sockets
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
8 * The initial developer of the original code is David A. Hinds
9 * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
10 * are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
12 * (C) 1999 David A. Hinds
15 #include <linux/config.h>
16 #include <linux/module.h>
17 #include <linux/moduleparam.h>
18 #include <linux/init.h>
19 #include <linux/interrupt.h>
20 #include <linux/kernel.h>
21 #include <linux/errno.h>
22 #include <linux/types.h>
23 #include <linux/slab.h>
24 #include <linux/ioport.h>
25 #include <linux/timer.h>
26 #include <linux/pci.h>
27 #include <linux/device.h>
32 #include <pcmcia/cs_types.h>
33 #include <pcmcia/ss.h>
34 #include <pcmcia/cs.h>
35 #include <pcmcia/bulkmem.h>
36 #include <pcmcia/cistpl.h>
37 #include "cs_internal.h"
39 MODULE_AUTHOR("David A. Hinds, Dominik Brodowski");
40 MODULE_LICENSE("GPL");
42 /* Parameters that can be set with 'insmod' */
44 #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0444)
46 INT_MODULE_PARM(probe_mem, 1); /* memory probe? */
47 #ifdef CONFIG_PCMCIA_PROBE
48 INT_MODULE_PARM(probe_io, 1); /* IO port probe? */
49 INT_MODULE_PARM(mem_limit, 0x10000);
52 /* for io_db and mem_db */
55 struct resource_map *next;
59 struct resource_map mem_db;
60 struct resource_map io_db;
61 unsigned int rsrc_mem_probe;
64 static DECLARE_MUTEX(rsrc_sem);
65 #define MEM_PROBE_LOW (1 << 0)
66 #define MEM_PROBE_HIGH (1 << 1)
69 /*======================================================================
71 Linux resource management extensions
73 ======================================================================*/
75 static struct resource *
76 make_resource(unsigned long b, unsigned long n, int flags, char *name)
78 struct resource *res = kmalloc(sizeof(*res), GFP_KERNEL);
81 memset(res, 0, sizeof(*res));
90 static struct resource *
91 claim_region(struct pcmcia_socket *s, unsigned long base, unsigned long size,
94 struct resource *res, *parent;
96 parent = type & IORESOURCE_MEM ? &iomem_resource : &ioport_resource;
97 res = make_resource(base, size, type | IORESOURCE_BUSY, name);
102 parent = pci_find_parent_resource(s->cb_dev, res);
104 if (!parent || request_resource(parent, res)) {
112 static void free_region(struct resource *res)
115 release_resource(res);
120 /*======================================================================
122 These manage the internal databases of available resources.
124 ======================================================================*/
126 static int add_interval(struct resource_map *map, u_long base, u_long num)
128 struct resource_map *p, *q;
130 for (p = map; ; p = p->next) {
131 if ((p != map) && (p->base+p->num-1 >= base))
133 if ((p->next == map) || (p->next->base > base+num-1))
136 q = kmalloc(sizeof(struct resource_map), GFP_KERNEL);
137 if (!q) return CS_OUT_OF_RESOURCE;
138 q->base = base; q->num = num;
139 q->next = p->next; p->next = q;
143 /*====================================================================*/
145 static int sub_interval(struct resource_map *map, u_long base, u_long num)
147 struct resource_map *p, *q;
149 for (p = map; ; p = q) {
153 if ((q->base+q->num > base) && (base+num > q->base)) {
154 if (q->base >= base) {
155 if (q->base+q->num <= base+num) {
156 /* Delete whole block */
159 /* don't advance the pointer yet */
162 /* Cut off bit from the front */
163 q->num = q->base + q->num - base - num;
164 q->base = base + num;
166 } else if (q->base+q->num <= base+num) {
167 /* Cut off bit from the end */
168 q->num = base - q->base;
170 /* Split the block into two pieces */
171 p = kmalloc(sizeof(struct resource_map), GFP_KERNEL);
172 if (!p) return CS_OUT_OF_RESOURCE;
174 p->num = q->base+q->num - p->base;
175 q->num = base - q->base;
176 p->next = q->next ; q->next = p;
183 /*======================================================================
185 These routines examine a region of IO or memory addresses to
186 determine what ranges might be genuinely available.
188 ======================================================================*/
190 #ifdef CONFIG_PCMCIA_PROBE
191 static void do_io_probe(struct pcmcia_socket *s, kio_addr_t base, kio_addr_t num)
193 struct resource *res;
194 struct socket_data *s_data = s->resource_data;
195 kio_addr_t i, j, bad;
197 u_char *b, hole, most;
199 printk(KERN_INFO "cs: IO port probe %#lx-%#lx:",
202 /* First, what does a floating port look like? */
203 b = kmalloc(256, GFP_KERNEL);
205 printk(KERN_ERR "do_io_probe: unable to kmalloc 256 bytes");
209 for (i = base, most = 0; i < base+num; i += 8) {
210 res = claim_region(NULL, i, 8, IORESOURCE_IO, "PCMCIA IO probe");
214 for (j = 1; j < 8; j++)
215 if (inb(i+j) != hole) break;
217 if ((j == 8) && (++b[hole] > b[most]))
219 if (b[most] == 127) break;
224 for (i = base; i < base+num; i += 8) {
225 res = claim_region(NULL, i, 8, IORESOURCE_IO, "PCMCIA IO probe");
228 for (j = 0; j < 8; j++)
229 if (inb(i+j) != most) break;
233 printk(" excluding");
238 sub_interval(&s_data->io_db, bad, i-bad);
239 printk(" %#lx-%#lx", bad, i-1);
245 if ((num > 16) && (bad == base) && (i == base+num)) {
246 printk(" nothing: probe failed.\n");
249 sub_interval(&s_data->io_db, bad, i-bad);
250 printk(" %#lx-%#lx", bad, i-1);
254 printk(any ? "\n" : " clean.\n");
258 /*======================================================================
260 This is tricky... when we set up CIS memory, we try to validate
261 the memory window space allocations.
263 ======================================================================*/
265 /* Validation function for cards with a valid CIS */
266 static int readable(struct pcmcia_socket *s, struct resource *res, cisinfo_t *info)
270 s->cis_mem.res = res;
271 s->cis_virt = ioremap(res->start, s->map_size);
273 ret = pccard_validate_cis(s, BIND_FN_ALL, info);
274 /* invalidate mapping and CIS cache */
275 iounmap(s->cis_virt);
277 destroy_cis_cache(s);
279 s->cis_mem.res = NULL;
280 if ((ret != 0) || (info->Chains == 0))
285 /* Validation function for simple memory cards */
286 static int checksum(struct pcmcia_socket *s, struct resource *res)
289 int i, a = 0, b = -1, d;
292 virt = ioremap(res->start, s->map_size);
295 map.flags = MAP_ACTIVE;
299 s->ops->set_mem_map(s, &map);
301 /* Don't bother checking every word... */
302 for (i = 0; i < s->map_size; i += 44) {
309 s->ops->set_mem_map(s, &map);
314 return (b == -1) ? -1 : (a>>1);
318 cis_readable(struct pcmcia_socket *s, unsigned long base, unsigned long size)
320 struct resource *res1, *res2;
321 cisinfo_t info1, info2;
324 res1 = claim_region(s, base, size/2, IORESOURCE_MEM, "cs memory probe");
325 res2 = claim_region(s, base + size/2, size/2, IORESOURCE_MEM, "cs memory probe");
328 ret = readable(s, res1, &info1);
329 ret += readable(s, res2, &info2);
335 return (ret == 2) && (info1.Chains == info2.Chains);
339 checksum_match(struct pcmcia_socket *s, unsigned long base, unsigned long size)
341 struct resource *res1, *res2;
344 res1 = claim_region(s, base, size/2, IORESOURCE_MEM, "cs memory probe");
345 res2 = claim_region(s, base + size/2, size/2, IORESOURCE_MEM, "cs memory probe");
348 a = checksum(s, res1);
349 b = checksum(s, res2);
355 return (a == b) && (a >= 0);
358 /*======================================================================
360 The memory probe. If the memory list includes a 64K-aligned block
361 below 1MB, we probe in 64K chunks, and as soon as we accumulate at
362 least mem_limit free space, we quit.
364 ======================================================================*/
366 static int do_mem_probe(u_long base, u_long num, struct pcmcia_socket *s)
368 struct socket_data *s_data = s->resource_data;
369 u_long i, j, bad, fail, step;
371 printk(KERN_INFO "cs: memory probe 0x%06lx-0x%06lx:",
374 step = (num < 0x20000) ? 0x2000 : ((num>>4) & ~0x1fff);
375 /* don't allow too large steps */
378 /* cis_readable wants to map 2x map_size */
379 if (step < 2 * s->map_size)
380 step = 2 * s->map_size;
381 for (i = j = base; i < base+num; i = j + step) {
383 for (j = i; j < base+num; j += step) {
384 if (cis_readable(s, j, step))
387 fail = ((i == base) && (j == base+num));
390 for (j = i; j < base+num; j += 2*step)
391 if (checksum_match(s, j, step) &&
392 checksum_match(s, j + step, step))
396 if (!bad) printk(" excluding");
397 printk(" %#05lx-%#05lx", i, j-1);
398 sub_interval(&s_data->mem_db, i, j-i);
402 printk(bad ? "\n" : " clean.\n");
406 #ifdef CONFIG_PCMCIA_PROBE
408 static u_long inv_probe(struct resource_map *m, struct pcmcia_socket *s)
410 struct socket_data *s_data = s->resource_data;
412 if (m == &s_data->mem_db)
414 ok = inv_probe(m->next, s);
416 if (m->base >= 0x100000)
417 sub_interval(&s_data->mem_db, m->base, m->num);
420 if (m->base < 0x100000)
422 return do_mem_probe(m->base, m->num, s);
425 static int validate_mem(struct pcmcia_socket *s, unsigned int probe_mask)
427 struct resource_map *m, mm;
428 static unsigned char order[] = { 0xd0, 0xe0, 0xc0, 0xf0 };
429 unsigned long b, i, ok = 0;
430 struct socket_data *s_data = s->resource_data;
432 /* We do up to four passes through the list */
433 if (probe_mask & MEM_PROBE_HIGH) {
434 if (inv_probe(s_data->mem_db.next, s) > 0)
436 printk(KERN_NOTICE "cs: warning: no high memory space "
441 for (m = s_data->mem_db.next; m != &s_data->mem_db; m = mm.next) {
443 /* Only probe < 1 MB */
444 if (mm.base >= 0x100000)
446 if ((mm.base | mm.num) & 0xffff) {
447 ok += do_mem_probe(mm.base, mm.num, s);
450 /* Special probe for 64K-aligned block */
451 for (i = 0; i < 4; i++) {
453 if ((b >= mm.base) && (b+0x10000 <= mm.base+mm.num)) {
455 sub_interval(&s_data->mem_db, b, 0x10000);
457 ok += do_mem_probe(b, 0x10000, s);
468 #else /* CONFIG_PCMCIA_PROBE */
470 static void validate_mem(struct pcmcia_socket *s, unsigned int probe_mask)
472 struct resource_map *m, mm;
473 struct socket_data *s_data = s->resource_data;
475 for (m = s_data->mem_db.next; m != &s_data->mem_db; m = mm.next) {
477 do_mem_probe(mm.base, mm.num, s);
481 #endif /* CONFIG_PCMCIA_PROBE */
485 * Locking note: Must be called with skt_sem held!
487 static int pcmcia_nonstatic_validate_mem(struct pcmcia_socket *s)
489 struct socket_data *s_data = s->resource_data;
490 unsigned int probe_mask = MEM_PROBE_LOW;
498 if (s->features & SS_CAP_PAGE_REGS)
499 probe_mask = MEM_PROBE_HIGH;
501 if (probe_mask & ~s_data->rsrc_mem_probe) {
502 if (s->state & SOCKET_PRESENT)
503 ret = validate_mem(s, probe_mask);
505 s_data->rsrc_mem_probe |= probe_mask;
513 struct pcmcia_align_data {
515 unsigned long offset;
516 struct resource_map *map;
520 pcmcia_common_align(void *align_data, struct resource *res,
521 unsigned long size, unsigned long align)
523 struct pcmcia_align_data *data = align_data;
526 * Ensure that we have the correct start address
528 start = (res->start & ~data->mask) + data->offset;
529 if (start < res->start)
530 start += data->mask + 1;
535 pcmcia_align(void *align_data, struct resource *res,
536 unsigned long size, unsigned long align)
538 struct pcmcia_align_data *data = align_data;
539 struct resource_map *m;
541 pcmcia_common_align(data, res, size, align);
543 for (m = data->map->next; m != data->map; m = m->next) {
544 unsigned long start = m->base;
545 unsigned long end = m->base + m->num - 1;
548 * If the lower resources are not available, try aligning
549 * to this entry of the resource database to see if it'll
552 if (res->start < start) {
554 pcmcia_common_align(data, res, size, align);
558 * If we're above the area which was passed in, there's
559 * no point proceeding.
561 if (res->start >= res->end)
564 if ((res->start + size - 1) <= end)
569 * If we failed to find something suitable, ensure we fail.
572 res->start = res->end;
576 * Adjust an existing IO region allocation, but making sure that we don't
577 * encroach outside the resources which the user supplied.
579 static int nonstatic_adjust_io_region(struct resource *res, unsigned long r_start,
580 unsigned long r_end, struct pcmcia_socket *s)
582 struct resource_map *m;
583 struct socket_data *s_data = s->resource_data;
587 for (m = s_data->io_db.next; m != &s_data->io_db; m = m->next) {
588 unsigned long start = m->base;
589 unsigned long end = m->base + m->num - 1;
591 if (start > r_start || r_end > end)
594 ret = adjust_resource(res, r_start, r_end - r_start + 1);
602 /*======================================================================
604 These find ranges of I/O ports or memory addresses that are not
605 currently allocated by other devices.
607 The 'align' field should reflect the number of bits of address
608 that need to be preserved from the initial value of *base. It
609 should be a power of two, greater than or equal to 'num'. A value
610 of 0 means that all bits of *base are significant. *base should
611 also be strictly less than 'align'.
613 ======================================================================*/
615 static struct resource *nonstatic_find_io_region(unsigned long base, int num,
616 unsigned long align, struct pcmcia_socket *s)
618 struct resource *res = make_resource(0, num, IORESOURCE_IO, s->dev.class_id);
619 struct socket_data *s_data = s->resource_data;
620 struct pcmcia_align_data data;
621 unsigned long min = base;
627 data.mask = align - 1;
628 data.offset = base & data.mask;
629 data.map = &s_data->io_db;
634 ret = pci_bus_alloc_resource(s->cb_dev->bus, res, num, 1,
635 min, 0, pcmcia_align, &data);
638 ret = allocate_resource(&ioport_resource, res, num, min, ~0UL,
639 1, pcmcia_align, &data);
649 static struct resource * nonstatic_find_mem_region(u_long base, u_long num,
650 u_long align, int low, struct pcmcia_socket *s)
652 struct resource *res = make_resource(0, num, IORESOURCE_MEM, s->dev.class_id);
653 struct socket_data *s_data = s->resource_data;
654 struct pcmcia_align_data data;
655 unsigned long min, max;
658 low = low || !(s->features & SS_CAP_PAGE_REGS);
660 data.mask = align - 1;
661 data.offset = base & data.mask;
662 data.map = &s_data->mem_db;
664 for (i = 0; i < 2; i++) {
667 min = base < max ? base : 0;
670 min = 0x100000UL + base;
676 ret = pci_bus_alloc_resource(s->cb_dev->bus, res, num,
678 pcmcia_align, &data);
681 ret = allocate_resource(&iomem_resource, res, num, min,
682 max, 1, pcmcia_align, &data);
697 static int adjust_memory(struct pcmcia_socket *s, unsigned int action, unsigned long start, unsigned long end)
699 struct socket_data *data = s->resource_data;
700 unsigned long size = end - start + 1;
708 case ADD_MANAGED_RESOURCE:
709 ret = add_interval(&data->mem_db, start, size);
711 case REMOVE_MANAGED_RESOURCE:
712 ret = sub_interval(&data->mem_db, start, size);
714 struct pcmcia_socket *socket;
715 down_read(&pcmcia_socket_list_rwsem);
716 list_for_each_entry(socket, &pcmcia_socket_list, socket_list)
717 release_cis_mem(socket);
718 up_read(&pcmcia_socket_list_rwsem);
730 static int adjust_io(struct pcmcia_socket *s, unsigned int action, unsigned long start, unsigned long end)
732 struct socket_data *data = s->resource_data;
733 unsigned long size = end - start + 1;
739 if (end > IO_SPACE_LIMIT)
744 case ADD_MANAGED_RESOURCE:
745 if (add_interval(&data->io_db, start, size) != 0) {
749 #ifdef CONFIG_PCMCIA_PROBE
751 do_io_probe(s, start, size);
754 case REMOVE_MANAGED_RESOURCE:
755 sub_interval(&data->io_db, start, size);
767 static int nonstatic_adjust_resource_info(struct pcmcia_socket *s, adjust_t *adj)
771 switch (adj->Resource) {
772 case RES_MEMORY_RANGE:
773 end = adj->resource.memory.Base + adj->resource.memory.Size - 1;
774 return adjust_memory(s, adj->Action, adj->resource.memory.Base, end);
776 end = adj->resource.io.BasePort + adj->resource.io.NumPorts - 1;
777 return adjust_io(s, adj->Action, adj->resource.io.BasePort, end);
779 return CS_UNSUPPORTED_FUNCTION;
783 static int nonstatic_autoadd_resources(struct pcmcia_socket *s)
785 struct resource *res;
788 if (!s->cb_dev || !s->cb_dev->bus)
791 #if defined(CONFIG_X86)
792 /* If this is the root bus, the risk of hitting
793 * some strange system devices which aren't protected
794 * by either ACPI resource tables or properly requested
795 * resources is too big. Therefore, don't do auto-adding
796 * of resources at the moment.
798 if (s->cb_dev->bus->number == 0)
802 for (i=0; i < PCI_BUS_NUM_RESOURCES; i++) {
803 res = s->cb_dev->bus->resource[i];
807 if (res->flags & IORESOURCE_IO) {
808 if (res == &ioport_resource)
810 printk(KERN_INFO "pcmcia: parent PCI bridge I/O window: 0x%lx - 0x%lx\n",
811 res->start, res->end);
812 if (!adjust_io(s, ADD_MANAGED_RESOURCE, res->start, res->end))
813 done |= IORESOURCE_IO;
817 if (res->flags & IORESOURCE_MEM) {
818 if (res == &iomem_resource)
820 printk(KERN_INFO "pcmcia: parent PCI bridge Memory window: 0x%lx - 0x%lx\n",
821 res->start, res->end);
822 if (!adjust_memory(s, ADD_MANAGED_RESOURCE, res->start, res->end))
823 done |= IORESOURCE_MEM;
827 /* if we got at least one of IO, and one of MEM, we can be glad and
828 * activate the PCMCIA subsystem */
829 if (done == (IORESOURCE_MEM | IORESOURCE_IO))
830 s->resource_setup_done = 1;
837 static inline int nonstatic_autoadd_resources(struct pcmcia_socket *s)
845 static int nonstatic_init(struct pcmcia_socket *s)
847 struct socket_data *data;
849 data = kmalloc(sizeof(struct socket_data), GFP_KERNEL);
852 memset(data, 0, sizeof(struct socket_data));
854 data->mem_db.next = &data->mem_db;
855 data->io_db.next = &data->io_db;
857 s->resource_data = (void *) data;
859 nonstatic_autoadd_resources(s);
864 static void nonstatic_release_resource_db(struct pcmcia_socket *s)
866 struct socket_data *data = s->resource_data;
867 struct resource_map *p, *q;
870 for (p = data->mem_db.next; p != &data->mem_db; p = q) {
874 for (p = data->io_db.next; p != &data->io_db; p = q) {
882 struct pccard_resource_ops pccard_nonstatic_ops = {
883 .validate_mem = pcmcia_nonstatic_validate_mem,
884 .adjust_io_region = nonstatic_adjust_io_region,
885 .find_io = nonstatic_find_io_region,
886 .find_mem = nonstatic_find_mem_region,
887 .adjust_resource = nonstatic_adjust_resource_info,
888 .init = nonstatic_init,
889 .exit = nonstatic_release_resource_db,
891 EXPORT_SYMBOL(pccard_nonstatic_ops);
894 /* sysfs interface to the resource database */
896 static ssize_t show_io_db(struct class_device *class_dev, char *buf)
898 struct pcmcia_socket *s = class_get_devdata(class_dev);
899 struct socket_data *data;
900 struct resource_map *p;
904 data = s->resource_data;
906 for (p = data->io_db.next; p != &data->io_db; p = p->next) {
907 if (ret > (PAGE_SIZE - 10))
909 ret += snprintf (&buf[ret], (PAGE_SIZE - ret - 1),
910 "0x%08lx - 0x%08lx\n",
911 ((unsigned long) p->base),
912 ((unsigned long) p->base + p->num - 1));
919 static ssize_t store_io_db(struct class_device *class_dev, const char *buf, size_t count)
921 struct pcmcia_socket *s = class_get_devdata(class_dev);
922 unsigned long start_addr, end_addr;
923 unsigned int add = ADD_MANAGED_RESOURCE;
926 ret = sscanf (buf, "+ 0x%lx - 0x%lx", &start_addr, &end_addr);
928 ret = sscanf (buf, "- 0x%lx - 0x%lx", &start_addr, &end_addr);
929 add = REMOVE_MANAGED_RESOURCE;
931 ret = sscanf (buf, "0x%lx - 0x%lx", &start_addr, &end_addr);
932 add = ADD_MANAGED_RESOURCE;
937 if (end_addr < start_addr)
940 ret = adjust_io(s, add, start_addr, end_addr);
942 s->resource_setup_new = 1;
944 return ret ? ret : count;
946 static CLASS_DEVICE_ATTR(available_resources_io, 0600, show_io_db, store_io_db);
948 static ssize_t show_mem_db(struct class_device *class_dev, char *buf)
950 struct pcmcia_socket *s = class_get_devdata(class_dev);
951 struct socket_data *data;
952 struct resource_map *p;
956 data = s->resource_data;
958 for (p = data->mem_db.next; p != &data->mem_db; p = p->next) {
959 if (ret > (PAGE_SIZE - 10))
961 ret += snprintf (&buf[ret], (PAGE_SIZE - ret - 1),
962 "0x%08lx - 0x%08lx\n",
963 ((unsigned long) p->base),
964 ((unsigned long) p->base + p->num - 1));
971 static ssize_t store_mem_db(struct class_device *class_dev, const char *buf, size_t count)
973 struct pcmcia_socket *s = class_get_devdata(class_dev);
974 unsigned long start_addr, end_addr;
975 unsigned int add = ADD_MANAGED_RESOURCE;
978 ret = sscanf (buf, "+ 0x%lx - 0x%lx", &start_addr, &end_addr);
980 ret = sscanf (buf, "- 0x%lx - 0x%lx", &start_addr, &end_addr);
981 add = REMOVE_MANAGED_RESOURCE;
983 ret = sscanf (buf, "0x%lx - 0x%lx", &start_addr, &end_addr);
984 add = ADD_MANAGED_RESOURCE;
989 if (end_addr < start_addr)
992 ret = adjust_memory(s, add, start_addr, end_addr);
994 s->resource_setup_new = 1;
996 return ret ? ret : count;
998 static CLASS_DEVICE_ATTR(available_resources_mem, 0600, show_mem_db, store_mem_db);
1000 static struct class_device_attribute *pccard_rsrc_attributes[] = {
1001 &class_device_attr_available_resources_io,
1002 &class_device_attr_available_resources_mem,
1006 static int __devinit pccard_sysfs_add_rsrc(struct class_device *class_dev,
1007 struct class_interface *class_intf)
1009 struct pcmcia_socket *s = class_get_devdata(class_dev);
1010 struct class_device_attribute **attr;
1012 if (s->resource_ops != &pccard_nonstatic_ops)
1015 for (attr = pccard_rsrc_attributes; *attr; attr++) {
1016 ret = class_device_create_file(class_dev, *attr);
1024 static void __devexit pccard_sysfs_remove_rsrc(struct class_device *class_dev,
1025 struct class_interface *class_intf)
1027 struct pcmcia_socket *s = class_get_devdata(class_dev);
1028 struct class_device_attribute **attr;
1030 if (s->resource_ops != &pccard_nonstatic_ops)
1033 for (attr = pccard_rsrc_attributes; *attr; attr++)
1034 class_device_remove_file(class_dev, *attr);
1037 static struct class_interface pccard_rsrc_interface = {
1038 .class = &pcmcia_socket_class,
1039 .add = &pccard_sysfs_add_rsrc,
1040 .remove = __devexit_p(&pccard_sysfs_remove_rsrc),
1043 static int __init nonstatic_sysfs_init(void)
1045 return class_interface_register(&pccard_rsrc_interface);
1048 static void __exit nonstatic_sysfs_exit(void)
1050 class_interface_unregister(&pccard_rsrc_interface);
1053 module_init(nonstatic_sysfs_init);
1054 module_exit(nonstatic_sysfs_exit);