Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * rsrc_nonstatic.c -- Resource management routines for !SS_CAP_STATIC_MAP sockets |
| 3 | * |
| 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. |
| 7 | * |
| 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. |
| 11 | * |
| 12 | * (C) 1999 David A. Hinds |
| 13 | */ |
| 14 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 15 | #include <linux/module.h> |
| 16 | #include <linux/moduleparam.h> |
| 17 | #include <linux/init.h> |
| 18 | #include <linux/interrupt.h> |
| 19 | #include <linux/kernel.h> |
| 20 | #include <linux/errno.h> |
| 21 | #include <linux/types.h> |
| 22 | #include <linux/slab.h> |
| 23 | #include <linux/ioport.h> |
| 24 | #include <linux/timer.h> |
| 25 | #include <linux/pci.h> |
| 26 | #include <linux/device.h> |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 27 | #include <linux/io.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | |
| 29 | #include <asm/irq.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | |
| 31 | #include <pcmcia/cs_types.h> |
| 32 | #include <pcmcia/ss.h> |
| 33 | #include <pcmcia/cs.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | #include <pcmcia/cistpl.h> |
| 35 | #include "cs_internal.h" |
| 36 | |
| 37 | MODULE_AUTHOR("David A. Hinds, Dominik Brodowski"); |
| 38 | MODULE_LICENSE("GPL"); |
| 39 | |
| 40 | /* Parameters that can be set with 'insmod' */ |
| 41 | |
| 42 | #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0444) |
| 43 | |
| 44 | INT_MODULE_PARM(probe_mem, 1); /* memory probe? */ |
| 45 | #ifdef CONFIG_PCMCIA_PROBE |
| 46 | INT_MODULE_PARM(probe_io, 1); /* IO port probe? */ |
| 47 | INT_MODULE_PARM(mem_limit, 0x10000); |
| 48 | #endif |
| 49 | |
| 50 | /* for io_db and mem_db */ |
| 51 | struct resource_map { |
| 52 | u_long base, num; |
| 53 | struct resource_map *next; |
| 54 | }; |
| 55 | |
| 56 | struct socket_data { |
| 57 | struct resource_map mem_db; |
| 58 | struct resource_map io_db; |
| 59 | unsigned int rsrc_mem_probe; |
| 60 | }; |
| 61 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 62 | #define MEM_PROBE_LOW (1 << 0) |
| 63 | #define MEM_PROBE_HIGH (1 << 1) |
| 64 | |
| 65 | |
| 66 | /*====================================================================== |
| 67 | |
| 68 | Linux resource management extensions |
| 69 | |
| 70 | ======================================================================*/ |
| 71 | |
| 72 | static struct resource * |
Kay Sievers | 2509698 | 2008-11-01 11:46:06 +0100 | [diff] [blame] | 73 | make_resource(resource_size_t b, resource_size_t n, int flags, const char *name) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 74 | { |
Dominik Brodowski | 8084b37 | 2005-12-11 21:18:26 +0100 | [diff] [blame] | 75 | struct resource *res = kzalloc(sizeof(*res), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 76 | |
| 77 | if (res) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 78 | res->name = name; |
| 79 | res->start = b; |
| 80 | res->end = b + n - 1; |
| 81 | res->flags = flags; |
| 82 | } |
| 83 | return res; |
| 84 | } |
| 85 | |
| 86 | static struct resource * |
Greg Kroah-Hartman | 2427ddd | 2006-06-12 17:07:52 -0700 | [diff] [blame] | 87 | claim_region(struct pcmcia_socket *s, resource_size_t base, |
| 88 | resource_size_t size, int type, char *name) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 89 | { |
| 90 | struct resource *res, *parent; |
| 91 | |
| 92 | parent = type & IORESOURCE_MEM ? &iomem_resource : &ioport_resource; |
| 93 | res = make_resource(base, size, type | IORESOURCE_BUSY, name); |
| 94 | |
| 95 | if (res) { |
| 96 | #ifdef CONFIG_PCI |
| 97 | if (s && s->cb_dev) |
| 98 | parent = pci_find_parent_resource(s->cb_dev, res); |
| 99 | #endif |
| 100 | if (!parent || request_resource(parent, res)) { |
| 101 | kfree(res); |
| 102 | res = NULL; |
| 103 | } |
| 104 | } |
| 105 | return res; |
| 106 | } |
| 107 | |
| 108 | static void free_region(struct resource *res) |
| 109 | { |
| 110 | if (res) { |
| 111 | release_resource(res); |
| 112 | kfree(res); |
| 113 | } |
| 114 | } |
| 115 | |
| 116 | /*====================================================================== |
| 117 | |
| 118 | These manage the internal databases of available resources. |
| 119 | |
| 120 | ======================================================================*/ |
| 121 | |
| 122 | static int add_interval(struct resource_map *map, u_long base, u_long num) |
| 123 | { |
Dominik Brodowski | 1168386 | 2008-08-03 10:22:47 +0200 | [diff] [blame] | 124 | struct resource_map *p, *q; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 125 | |
Dominik Brodowski | 1168386 | 2008-08-03 10:22:47 +0200 | [diff] [blame] | 126 | for (p = map; ; p = p->next) { |
| 127 | if ((p != map) && (p->base+p->num-1 >= base)) |
| 128 | return -1; |
| 129 | if ((p->next == map) || (p->next->base > base+num-1)) |
| 130 | break; |
| 131 | } |
| 132 | q = kmalloc(sizeof(struct resource_map), GFP_KERNEL); |
| 133 | if (!q) { |
| 134 | printk(KERN_WARNING "out of memory to update resources\n"); |
| 135 | return -ENOMEM; |
| 136 | } |
| 137 | q->base = base; q->num = num; |
| 138 | q->next = p->next; p->next = q; |
| 139 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 140 | } |
| 141 | |
| 142 | /*====================================================================*/ |
| 143 | |
| 144 | static int sub_interval(struct resource_map *map, u_long base, u_long num) |
| 145 | { |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 146 | struct resource_map *p, *q; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 147 | |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 148 | for (p = map; ; p = q) { |
| 149 | q = p->next; |
| 150 | if (q == map) |
| 151 | break; |
| 152 | if ((q->base+q->num > base) && (base+num > q->base)) { |
| 153 | if (q->base >= base) { |
| 154 | if (q->base+q->num <= base+num) { |
| 155 | /* Delete whole block */ |
| 156 | p->next = q->next; |
| 157 | kfree(q); |
| 158 | /* don't advance the pointer yet */ |
| 159 | q = p; |
| 160 | } else { |
| 161 | /* Cut off bit from the front */ |
| 162 | q->num = q->base + q->num - base - num; |
| 163 | q->base = base + num; |
| 164 | } |
| 165 | } else if (q->base+q->num <= base+num) { |
| 166 | /* Cut off bit from the end */ |
| 167 | q->num = base - q->base; |
| 168 | } else { |
| 169 | /* Split the block into two pieces */ |
| 170 | p = kmalloc(sizeof(struct resource_map), |
| 171 | GFP_KERNEL); |
| 172 | if (!p) { |
| 173 | printk(KERN_WARNING "out of memory to update resources\n"); |
| 174 | return -ENOMEM; |
| 175 | } |
| 176 | p->base = base+num; |
| 177 | p->num = q->base+q->num - p->base; |
| 178 | q->num = base - q->base; |
| 179 | p->next = q->next ; q->next = p; |
| 180 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 181 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 182 | } |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 183 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 184 | } |
| 185 | |
| 186 | /*====================================================================== |
| 187 | |
| 188 | These routines examine a region of IO or memory addresses to |
| 189 | determine what ranges might be genuinely available. |
| 190 | |
| 191 | ======================================================================*/ |
| 192 | |
| 193 | #ifdef CONFIG_PCMCIA_PROBE |
Olof Johansson | 906da80 | 2008-02-04 22:27:35 -0800 | [diff] [blame] | 194 | static void do_io_probe(struct pcmcia_socket *s, unsigned int base, |
| 195 | unsigned int num) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 196 | { |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 197 | struct resource *res; |
| 198 | struct socket_data *s_data = s->resource_data; |
| 199 | unsigned int i, j, bad; |
| 200 | int any; |
| 201 | u_char *b, hole, most; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 203 | dev_printk(KERN_INFO, &s->dev, "cs: IO port probe %#x-%#x:", |
| 204 | base, base+num-1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 205 | |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 206 | /* First, what does a floating port look like? */ |
| 207 | b = kzalloc(256, GFP_KERNEL); |
| 208 | if (!b) { |
| 209 | printk("\n"); |
| 210 | dev_printk(KERN_ERR, &s->dev, |
| 211 | "do_io_probe: unable to kmalloc 256 bytes"); |
| 212 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 213 | } |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 214 | for (i = base, most = 0; i < base+num; i += 8) { |
| 215 | res = claim_region(NULL, i, 8, IORESOURCE_IO, "PCMCIA ioprobe"); |
| 216 | if (!res) |
| 217 | continue; |
| 218 | hole = inb(i); |
| 219 | for (j = 1; j < 8; j++) |
| 220 | if (inb(i+j) != hole) |
| 221 | break; |
| 222 | free_region(res); |
| 223 | if ((j == 8) && (++b[hole] > b[most])) |
| 224 | most = hole; |
| 225 | if (b[most] == 127) |
| 226 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 227 | } |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 228 | kfree(b); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 229 | |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 230 | bad = any = 0; |
| 231 | for (i = base; i < base+num; i += 8) { |
| 232 | res = claim_region(NULL, i, 8, IORESOURCE_IO, "PCMCIA ioprobe"); |
| 233 | if (!res) |
| 234 | continue; |
| 235 | for (j = 0; j < 8; j++) |
| 236 | if (inb(i+j) != most) |
| 237 | break; |
| 238 | free_region(res); |
| 239 | if (j < 8) { |
| 240 | if (!any) |
| 241 | printk(" excluding"); |
| 242 | if (!bad) |
| 243 | bad = any = i; |
| 244 | } else { |
| 245 | if (bad) { |
| 246 | sub_interval(&s_data->io_db, bad, i-bad); |
| 247 | printk(" %#x-%#x", bad, i-1); |
| 248 | bad = 0; |
| 249 | } |
| 250 | } |
| 251 | } |
| 252 | if (bad) { |
| 253 | if ((num > 16) && (bad == base) && (i == base+num)) { |
| 254 | printk(" nothing: probe failed.\n"); |
| 255 | return; |
| 256 | } else { |
| 257 | sub_interval(&s_data->io_db, bad, i-bad); |
| 258 | printk(" %#x-%#x", bad, i-1); |
| 259 | } |
| 260 | } |
| 261 | |
| 262 | printk(any ? "\n" : " clean.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 263 | } |
| 264 | #endif |
| 265 | |
Dominik Brodowski | 3f32b3c | 2010-01-02 22:22:50 +0100 | [diff] [blame] | 266 | /*======================================================================*/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 267 | |
Dominik Brodowski | 3f32b3c | 2010-01-02 22:22:50 +0100 | [diff] [blame] | 268 | /** |
| 269 | * readable() - iomem validation function for cards with a valid CIS |
| 270 | */ |
Dominik Brodowski | c5081d5 | 2008-06-19 20:12:34 +0200 | [diff] [blame] | 271 | static int readable(struct pcmcia_socket *s, struct resource *res, |
| 272 | unsigned int *count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 273 | { |
Dominik Brodowski | 3f32b3c | 2010-01-02 22:22:50 +0100 | [diff] [blame] | 274 | int ret = -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 275 | |
| 276 | s->cis_mem.res = res; |
| 277 | s->cis_virt = ioremap(res->start, s->map_size); |
| 278 | if (s->cis_virt) { |
Dominik Brodowski | 6b8e087 | 2010-01-12 21:42:51 +0100 | [diff] [blame] | 279 | mutex_unlock(&s->ops_mutex); |
Dominik Brodowski | 6e7b51a | 2010-01-06 13:57:43 +0100 | [diff] [blame] | 280 | /* as we're only called from pcmcia.c, we're safe */ |
| 281 | if (s->callback->validate) |
| 282 | ret = s->callback->validate(s, count); |
Dominik Brodowski | 904e377 | 2010-01-02 12:28:04 +0100 | [diff] [blame] | 283 | /* invalidate mapping */ |
Dominik Brodowski | 6b8e087 | 2010-01-12 21:42:51 +0100 | [diff] [blame] | 284 | mutex_lock(&s->ops_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 285 | iounmap(s->cis_virt); |
| 286 | s->cis_virt = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 287 | } |
| 288 | s->cis_mem.res = NULL; |
Dominik Brodowski | 3f32b3c | 2010-01-02 22:22:50 +0100 | [diff] [blame] | 289 | if ((ret) || (*count == 0)) |
| 290 | return -EINVAL; |
| 291 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 292 | } |
| 293 | |
Dominik Brodowski | 3f32b3c | 2010-01-02 22:22:50 +0100 | [diff] [blame] | 294 | /** |
| 295 | * checksum() - iomem validation function for simple memory cards |
| 296 | */ |
| 297 | static int checksum(struct pcmcia_socket *s, struct resource *res, |
| 298 | unsigned int *value) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 299 | { |
| 300 | pccard_mem_map map; |
| 301 | int i, a = 0, b = -1, d; |
| 302 | void __iomem *virt; |
| 303 | |
| 304 | virt = ioremap(res->start, s->map_size); |
| 305 | if (virt) { |
| 306 | map.map = 0; |
| 307 | map.flags = MAP_ACTIVE; |
| 308 | map.speed = 0; |
| 309 | map.res = res; |
| 310 | map.card_start = 0; |
| 311 | s->ops->set_mem_map(s, &map); |
| 312 | |
| 313 | /* Don't bother checking every word... */ |
| 314 | for (i = 0; i < s->map_size; i += 44) { |
| 315 | d = readl(virt+i); |
| 316 | a += d; |
| 317 | b &= d; |
| 318 | } |
| 319 | |
| 320 | map.flags = 0; |
| 321 | s->ops->set_mem_map(s, &map); |
| 322 | |
| 323 | iounmap(virt); |
| 324 | } |
| 325 | |
Dominik Brodowski | 3f32b3c | 2010-01-02 22:22:50 +0100 | [diff] [blame] | 326 | if (b == -1) |
| 327 | return -EINVAL; |
| 328 | |
| 329 | *value = a; |
| 330 | |
| 331 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 332 | } |
| 333 | |
Dominik Brodowski | 3f32b3c | 2010-01-02 22:22:50 +0100 | [diff] [blame] | 334 | /** |
| 335 | * do_validate_mem() - low level validate a memory region for PCMCIA use |
| 336 | * @s: PCMCIA socket to validate |
| 337 | * @base: start address of resource to check |
| 338 | * @size: size of resource to check |
| 339 | * @validate: validation function to use |
| 340 | * |
| 341 | * do_validate_mem() splits up the memory region which is to be checked |
| 342 | * into two parts. Both are passed to the @validate() function. If |
| 343 | * @validate() returns non-zero, or the value parameter to @validate() |
| 344 | * is zero, or the value parameter is different between both calls, |
| 345 | * the check fails, and -EINVAL is returned. Else, 0 is returned. |
| 346 | */ |
| 347 | static int do_validate_mem(struct pcmcia_socket *s, |
| 348 | unsigned long base, unsigned long size, |
| 349 | int validate (struct pcmcia_socket *s, |
| 350 | struct resource *res, |
| 351 | unsigned int *value)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | { |
| 353 | struct resource *res1, *res2; |
Dominik Brodowski | 3f32b3c | 2010-01-02 22:22:50 +0100 | [diff] [blame] | 354 | unsigned int info1 = 1, info2 = 1; |
| 355 | int ret = -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 356 | |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 357 | res1 = claim_region(s, base, size/2, IORESOURCE_MEM, "PCMCIA memprobe"); |
| 358 | res2 = claim_region(s, base + size/2, size/2, IORESOURCE_MEM, |
| 359 | "PCMCIA memprobe"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 360 | |
| 361 | if (res1 && res2) { |
Dominik Brodowski | 3f32b3c | 2010-01-02 22:22:50 +0100 | [diff] [blame] | 362 | ret = 0; |
| 363 | if (validate) { |
| 364 | ret = validate(s, res1, &info1); |
| 365 | ret += validate(s, res2, &info2); |
| 366 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 367 | } |
| 368 | |
| 369 | free_region(res2); |
| 370 | free_region(res1); |
| 371 | |
Dominik Brodowski | 3f32b3c | 2010-01-02 22:22:50 +0100 | [diff] [blame] | 372 | dev_dbg(&s->dev, "cs: memory probe 0x%06lx-0x%06lx: %p %p %u %u %u", |
| 373 | base, base+size-1, res1, res2, ret, info1, info2); |
| 374 | |
| 375 | if ((ret) || (info1 != info2) || (info1 == 0)) |
| 376 | return -EINVAL; |
| 377 | |
| 378 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 379 | } |
| 380 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 381 | |
Dominik Brodowski | 3f32b3c | 2010-01-02 22:22:50 +0100 | [diff] [blame] | 382 | /** |
| 383 | * do_mem_probe() - validate a memory region for PCMCIA use |
| 384 | * @s: PCMCIA socket to validate |
| 385 | * @base: start address of resource to check |
| 386 | * @num: size of resource to check |
| 387 | * @validate: validation function to use |
| 388 | * @fallback: validation function to use if validate fails |
| 389 | * |
| 390 | * do_mem_probe() checks a memory region for use by the PCMCIA subsystem. |
| 391 | * To do so, the area is split up into sensible parts, and then passed |
| 392 | * into the @validate() function. Only if @validate() and @fallback() fail, |
| 393 | * the area is marked as unavaibale for use by the PCMCIA subsystem. The |
| 394 | * function returns the size of the usable memory area. |
| 395 | */ |
| 396 | static int do_mem_probe(struct pcmcia_socket *s, u_long base, u_long num, |
| 397 | int validate (struct pcmcia_socket *s, |
| 398 | struct resource *res, |
| 399 | unsigned int *value), |
| 400 | int fallback (struct pcmcia_socket *s, |
| 401 | struct resource *res, |
| 402 | unsigned int *value)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 403 | { |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 404 | struct socket_data *s_data = s->resource_data; |
| 405 | u_long i, j, bad, fail, step; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 406 | |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 407 | dev_printk(KERN_INFO, &s->dev, "cs: memory probe 0x%06lx-0x%06lx:", |
| 408 | base, base+num-1); |
| 409 | bad = fail = 0; |
| 410 | step = (num < 0x20000) ? 0x2000 : ((num>>4) & ~0x1fff); |
| 411 | /* don't allow too large steps */ |
| 412 | if (step > 0x800000) |
| 413 | step = 0x800000; |
| 414 | /* cis_readable wants to map 2x map_size */ |
| 415 | if (step < 2 * s->map_size) |
| 416 | step = 2 * s->map_size; |
| 417 | for (i = j = base; i < base+num; i = j + step) { |
| 418 | if (!fail) { |
| 419 | for (j = i; j < base+num; j += step) { |
Dominik Brodowski | 3f32b3c | 2010-01-02 22:22:50 +0100 | [diff] [blame] | 420 | if (!do_validate_mem(s, j, step, validate)) |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 421 | break; |
| 422 | } |
| 423 | fail = ((i == base) && (j == base+num)); |
| 424 | } |
Dominik Brodowski | 3f32b3c | 2010-01-02 22:22:50 +0100 | [diff] [blame] | 425 | if ((fail) && (fallback)) { |
| 426 | for (j = i; j < base+num; j += step) |
| 427 | if (!do_validate_mem(s, j, step, fallback)) |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 428 | break; |
| 429 | } |
| 430 | if (i != j) { |
| 431 | if (!bad) |
| 432 | printk(" excluding"); |
| 433 | printk(" %#05lx-%#05lx", i, j-1); |
| 434 | sub_interval(&s_data->mem_db, i, j-i); |
| 435 | bad += j-i; |
| 436 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 437 | } |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 438 | printk(bad ? "\n" : " clean.\n"); |
| 439 | return num - bad; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 440 | } |
| 441 | |
Dominik Brodowski | 3f32b3c | 2010-01-02 22:22:50 +0100 | [diff] [blame] | 442 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 443 | #ifdef CONFIG_PCMCIA_PROBE |
| 444 | |
Dominik Brodowski | 3f32b3c | 2010-01-02 22:22:50 +0100 | [diff] [blame] | 445 | /** |
| 446 | * inv_probe() - top-to-bottom search for one usuable high memory area |
| 447 | * @s: PCMCIA socket to validate |
| 448 | * @m: resource_map to check |
| 449 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 450 | static u_long inv_probe(struct resource_map *m, struct pcmcia_socket *s) |
| 451 | { |
Dominik Brodowski | de75914 | 2005-09-28 19:41:56 +0200 | [diff] [blame] | 452 | struct socket_data *s_data = s->resource_data; |
| 453 | u_long ok; |
| 454 | if (m == &s_data->mem_db) |
| 455 | return 0; |
| 456 | ok = inv_probe(m->next, s); |
| 457 | if (ok) { |
| 458 | if (m->base >= 0x100000) |
| 459 | sub_interval(&s_data->mem_db, m->base, m->num); |
| 460 | return ok; |
| 461 | } |
| 462 | if (m->base < 0x100000) |
| 463 | return 0; |
Dominik Brodowski | 3f32b3c | 2010-01-02 22:22:50 +0100 | [diff] [blame] | 464 | return do_mem_probe(s, m->base, m->num, readable, checksum); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 465 | } |
| 466 | |
Dominik Brodowski | 3f32b3c | 2010-01-02 22:22:50 +0100 | [diff] [blame] | 467 | /** |
| 468 | * validate_mem() - memory probe function |
| 469 | * @s: PCMCIA socket to validate |
| 470 | * @probe_mask: MEM_PROBE_LOW | MEM_PROBE_HIGH |
| 471 | * |
| 472 | * The memory probe. If the memory list includes a 64K-aligned block |
| 473 | * below 1MB, we probe in 64K chunks, and as soon as we accumulate at |
| 474 | * least mem_limit free space, we quit. Returns 0 on usuable ports. |
| 475 | */ |
Dominik Brodowski | de75914 | 2005-09-28 19:41:56 +0200 | [diff] [blame] | 476 | static int validate_mem(struct pcmcia_socket *s, unsigned int probe_mask) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 477 | { |
Dominik Brodowski | de75914 | 2005-09-28 19:41:56 +0200 | [diff] [blame] | 478 | struct resource_map *m, mm; |
| 479 | static unsigned char order[] = { 0xd0, 0xe0, 0xc0, 0xf0 }; |
| 480 | unsigned long b, i, ok = 0; |
| 481 | struct socket_data *s_data = s->resource_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 482 | |
Dominik Brodowski | de75914 | 2005-09-28 19:41:56 +0200 | [diff] [blame] | 483 | /* We do up to four passes through the list */ |
| 484 | if (probe_mask & MEM_PROBE_HIGH) { |
| 485 | if (inv_probe(s_data->mem_db.next, s) > 0) |
| 486 | return 0; |
Dominik Brodowski | dbe4ea5 | 2008-08-02 21:36:19 +0200 | [diff] [blame] | 487 | dev_printk(KERN_NOTICE, &s->dev, |
| 488 | "cs: warning: no high memory space available!\n"); |
Dominik Brodowski | de75914 | 2005-09-28 19:41:56 +0200 | [diff] [blame] | 489 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 490 | } |
Dominik Brodowski | de75914 | 2005-09-28 19:41:56 +0200 | [diff] [blame] | 491 | |
| 492 | for (m = s_data->mem_db.next; m != &s_data->mem_db; m = mm.next) { |
| 493 | mm = *m; |
| 494 | /* Only probe < 1 MB */ |
| 495 | if (mm.base >= 0x100000) |
| 496 | continue; |
| 497 | if ((mm.base | mm.num) & 0xffff) { |
Dominik Brodowski | 3f32b3c | 2010-01-02 22:22:50 +0100 | [diff] [blame] | 498 | ok += do_mem_probe(s, mm.base, mm.num, readable, |
| 499 | checksum); |
Dominik Brodowski | de75914 | 2005-09-28 19:41:56 +0200 | [diff] [blame] | 500 | continue; |
| 501 | } |
| 502 | /* Special probe for 64K-aligned block */ |
| 503 | for (i = 0; i < 4; i++) { |
| 504 | b = order[i] << 12; |
| 505 | if ((b >= mm.base) && (b+0x10000 <= mm.base+mm.num)) { |
| 506 | if (ok >= mem_limit) |
| 507 | sub_interval(&s_data->mem_db, b, 0x10000); |
| 508 | else |
Dominik Brodowski | 3f32b3c | 2010-01-02 22:22:50 +0100 | [diff] [blame] | 509 | ok += do_mem_probe(s, b, 0x10000, |
| 510 | readable, checksum); |
Dominik Brodowski | de75914 | 2005-09-28 19:41:56 +0200 | [diff] [blame] | 511 | } |
| 512 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 513 | } |
Dominik Brodowski | de75914 | 2005-09-28 19:41:56 +0200 | [diff] [blame] | 514 | |
| 515 | if (ok > 0) |
| 516 | return 0; |
| 517 | |
| 518 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 519 | } |
| 520 | |
| 521 | #else /* CONFIG_PCMCIA_PROBE */ |
| 522 | |
Dominik Brodowski | 3f32b3c | 2010-01-02 22:22:50 +0100 | [diff] [blame] | 523 | /** |
| 524 | * validate_mem() - memory probe function |
| 525 | * @s: PCMCIA socket to validate |
| 526 | * @probe_mask: ignored |
| 527 | * |
| 528 | * Returns 0 on usuable ports. |
| 529 | */ |
Andrew Morton | 2cff944 | 2005-11-16 21:29:26 -0800 | [diff] [blame] | 530 | static int validate_mem(struct pcmcia_socket *s, unsigned int probe_mask) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 531 | { |
| 532 | struct resource_map *m, mm; |
| 533 | struct socket_data *s_data = s->resource_data; |
Andrew Morton | 2cff944 | 2005-11-16 21:29:26 -0800 | [diff] [blame] | 534 | unsigned long ok = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 535 | |
| 536 | for (m = s_data->mem_db.next; m != &s_data->mem_db; m = mm.next) { |
| 537 | mm = *m; |
Dominik Brodowski | 3f32b3c | 2010-01-02 22:22:50 +0100 | [diff] [blame] | 538 | ok += do_mem_probe(s, mm.base, mm.num, readable, checksum); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 539 | } |
Andrew Morton | 2cff944 | 2005-11-16 21:29:26 -0800 | [diff] [blame] | 540 | if (ok > 0) |
| 541 | return 0; |
| 542 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 543 | } |
| 544 | |
| 545 | #endif /* CONFIG_PCMCIA_PROBE */ |
| 546 | |
| 547 | |
Dominik Brodowski | 3f32b3c | 2010-01-02 22:22:50 +0100 | [diff] [blame] | 548 | /** |
| 549 | * pcmcia_nonstatic_validate_mem() - try to validate iomem for PCMCIA use |
| 550 | * @s: PCMCIA socket to validate |
| 551 | * |
| 552 | * This is tricky... when we set up CIS memory, we try to validate |
| 553 | * the memory window space allocations. |
| 554 | * |
Dominik Brodowski | 7fe908d | 2006-01-10 21:20:36 +0100 | [diff] [blame] | 555 | * Locking note: Must be called with skt_mutex held! |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 556 | */ |
Dominik Brodowski | de75914 | 2005-09-28 19:41:56 +0200 | [diff] [blame] | 557 | static int pcmcia_nonstatic_validate_mem(struct pcmcia_socket *s) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 558 | { |
| 559 | struct socket_data *s_data = s->resource_data; |
Dominik Brodowski | de75914 | 2005-09-28 19:41:56 +0200 | [diff] [blame] | 560 | unsigned int probe_mask = MEM_PROBE_LOW; |
| 561 | int ret = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 562 | |
Dominik Brodowski | de75914 | 2005-09-28 19:41:56 +0200 | [diff] [blame] | 563 | if (!probe_mem) |
| 564 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 565 | |
Dominik Brodowski | de75914 | 2005-09-28 19:41:56 +0200 | [diff] [blame] | 566 | if (s->features & SS_CAP_PAGE_REGS) |
| 567 | probe_mask = MEM_PROBE_HIGH; |
| 568 | |
| 569 | if (probe_mask & ~s_data->rsrc_mem_probe) { |
Dominik Brodowski | 3f32b3c | 2010-01-02 22:22:50 +0100 | [diff] [blame] | 570 | if (s->state & SOCKET_PRESENT) { |
Dominik Brodowski | de75914 | 2005-09-28 19:41:56 +0200 | [diff] [blame] | 571 | ret = validate_mem(s, probe_mask); |
Dominik Brodowski | 3f32b3c | 2010-01-02 22:22:50 +0100 | [diff] [blame] | 572 | if (!ret) |
| 573 | s_data->rsrc_mem_probe |= probe_mask; |
| 574 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 575 | } |
Dominik Brodowski | de75914 | 2005-09-28 19:41:56 +0200 | [diff] [blame] | 576 | |
Dominik Brodowski | de75914 | 2005-09-28 19:41:56 +0200 | [diff] [blame] | 577 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 578 | } |
| 579 | |
| 580 | struct pcmcia_align_data { |
| 581 | unsigned long mask; |
| 582 | unsigned long offset; |
| 583 | struct resource_map *map; |
| 584 | }; |
| 585 | |
| 586 | static void |
| 587 | pcmcia_common_align(void *align_data, struct resource *res, |
Greg Kroah-Hartman | 2427ddd | 2006-06-12 17:07:52 -0700 | [diff] [blame] | 588 | resource_size_t size, resource_size_t align) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 589 | { |
| 590 | struct pcmcia_align_data *data = align_data; |
Greg Kroah-Hartman | 2427ddd | 2006-06-12 17:07:52 -0700 | [diff] [blame] | 591 | resource_size_t start; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 592 | /* |
| 593 | * Ensure that we have the correct start address |
| 594 | */ |
| 595 | start = (res->start & ~data->mask) + data->offset; |
| 596 | if (start < res->start) |
| 597 | start += data->mask + 1; |
| 598 | res->start = start; |
| 599 | } |
| 600 | |
| 601 | static void |
Greg Kroah-Hartman | 2427ddd | 2006-06-12 17:07:52 -0700 | [diff] [blame] | 602 | pcmcia_align(void *align_data, struct resource *res, resource_size_t size, |
| 603 | resource_size_t align) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 604 | { |
| 605 | struct pcmcia_align_data *data = align_data; |
| 606 | struct resource_map *m; |
| 607 | |
| 608 | pcmcia_common_align(data, res, size, align); |
| 609 | |
| 610 | for (m = data->map->next; m != data->map; m = m->next) { |
| 611 | unsigned long start = m->base; |
| 612 | unsigned long end = m->base + m->num - 1; |
| 613 | |
| 614 | /* |
| 615 | * If the lower resources are not available, try aligning |
| 616 | * to this entry of the resource database to see if it'll |
| 617 | * fit here. |
| 618 | */ |
| 619 | if (res->start < start) { |
| 620 | res->start = start; |
| 621 | pcmcia_common_align(data, res, size, align); |
| 622 | } |
| 623 | |
| 624 | /* |
| 625 | * If we're above the area which was passed in, there's |
| 626 | * no point proceeding. |
| 627 | */ |
| 628 | if (res->start >= res->end) |
| 629 | break; |
| 630 | |
| 631 | if ((res->start + size - 1) <= end) |
| 632 | break; |
| 633 | } |
| 634 | |
| 635 | /* |
| 636 | * If we failed to find something suitable, ensure we fail. |
| 637 | */ |
| 638 | if (m == data->map) |
| 639 | res->start = res->end; |
| 640 | } |
| 641 | |
| 642 | /* |
| 643 | * Adjust an existing IO region allocation, but making sure that we don't |
| 644 | * encroach outside the resources which the user supplied. |
| 645 | */ |
| 646 | static int nonstatic_adjust_io_region(struct resource *res, unsigned long r_start, |
| 647 | unsigned long r_end, struct pcmcia_socket *s) |
| 648 | { |
| 649 | struct resource_map *m; |
| 650 | struct socket_data *s_data = s->resource_data; |
| 651 | int ret = -ENOMEM; |
| 652 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 653 | for (m = s_data->io_db.next; m != &s_data->io_db; m = m->next) { |
| 654 | unsigned long start = m->base; |
| 655 | unsigned long end = m->base + m->num - 1; |
| 656 | |
| 657 | if (start > r_start || r_end > end) |
| 658 | continue; |
| 659 | |
| 660 | ret = adjust_resource(res, r_start, r_end - r_start + 1); |
| 661 | break; |
| 662 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 663 | |
| 664 | return ret; |
| 665 | } |
| 666 | |
| 667 | /*====================================================================== |
| 668 | |
| 669 | These find ranges of I/O ports or memory addresses that are not |
| 670 | currently allocated by other devices. |
| 671 | |
| 672 | The 'align' field should reflect the number of bits of address |
| 673 | that need to be preserved from the initial value of *base. It |
| 674 | should be a power of two, greater than or equal to 'num'. A value |
| 675 | of 0 means that all bits of *base are significant. *base should |
| 676 | also be strictly less than 'align'. |
| 677 | |
| 678 | ======================================================================*/ |
| 679 | |
Dominik Brodowski | e94e15f | 2005-06-27 16:28:15 -0700 | [diff] [blame] | 680 | static struct resource *nonstatic_find_io_region(unsigned long base, int num, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 681 | unsigned long align, struct pcmcia_socket *s) |
| 682 | { |
Kay Sievers | 2509698 | 2008-11-01 11:46:06 +0100 | [diff] [blame] | 683 | struct resource *res = make_resource(0, num, IORESOURCE_IO, dev_name(&s->dev)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 684 | struct socket_data *s_data = s->resource_data; |
| 685 | struct pcmcia_align_data data; |
| 686 | unsigned long min = base; |
| 687 | int ret; |
| 688 | |
| 689 | if (align == 0) |
| 690 | align = 0x10000; |
| 691 | |
| 692 | data.mask = align - 1; |
| 693 | data.offset = base & data.mask; |
| 694 | data.map = &s_data->io_db; |
| 695 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 696 | #ifdef CONFIG_PCI |
| 697 | if (s->cb_dev) { |
| 698 | ret = pci_bus_alloc_resource(s->cb_dev->bus, res, num, 1, |
| 699 | min, 0, pcmcia_align, &data); |
| 700 | } else |
| 701 | #endif |
| 702 | ret = allocate_resource(&ioport_resource, res, num, min, ~0UL, |
| 703 | 1, pcmcia_align, &data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 704 | |
| 705 | if (ret != 0) { |
| 706 | kfree(res); |
| 707 | res = NULL; |
| 708 | } |
| 709 | return res; |
| 710 | } |
| 711 | |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 712 | static struct resource *nonstatic_find_mem_region(u_long base, u_long num, |
Dominik Brodowski | e94e15f | 2005-06-27 16:28:15 -0700 | [diff] [blame] | 713 | u_long align, int low, struct pcmcia_socket *s) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 714 | { |
Kay Sievers | 2509698 | 2008-11-01 11:46:06 +0100 | [diff] [blame] | 715 | struct resource *res = make_resource(0, num, IORESOURCE_MEM, dev_name(&s->dev)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 716 | struct socket_data *s_data = s->resource_data; |
| 717 | struct pcmcia_align_data data; |
| 718 | unsigned long min, max; |
| 719 | int ret, i; |
| 720 | |
| 721 | low = low || !(s->features & SS_CAP_PAGE_REGS); |
| 722 | |
| 723 | data.mask = align - 1; |
| 724 | data.offset = base & data.mask; |
| 725 | data.map = &s_data->mem_db; |
| 726 | |
| 727 | for (i = 0; i < 2; i++) { |
| 728 | if (low) { |
| 729 | max = 0x100000UL; |
| 730 | min = base < max ? base : 0; |
| 731 | } else { |
| 732 | max = ~0UL; |
| 733 | min = 0x100000UL + base; |
| 734 | } |
| 735 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 736 | #ifdef CONFIG_PCI |
| 737 | if (s->cb_dev) { |
| 738 | ret = pci_bus_alloc_resource(s->cb_dev->bus, res, num, |
| 739 | 1, min, 0, |
| 740 | pcmcia_align, &data); |
| 741 | } else |
| 742 | #endif |
| 743 | ret = allocate_resource(&iomem_resource, res, num, min, |
| 744 | max, 1, pcmcia_align, &data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 745 | if (ret == 0 || low) |
| 746 | break; |
| 747 | low = 1; |
| 748 | } |
| 749 | |
| 750 | if (ret != 0) { |
| 751 | kfree(res); |
| 752 | res = NULL; |
| 753 | } |
| 754 | return res; |
| 755 | } |
| 756 | |
| 757 | |
Dominik Brodowski | 2291663 | 2005-06-27 16:28:46 -0700 | [diff] [blame] | 758 | static int adjust_memory(struct pcmcia_socket *s, unsigned int action, unsigned long start, unsigned long end) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 759 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 760 | struct socket_data *data = s->resource_data; |
Dominik Brodowski | 2291663 | 2005-06-27 16:28:46 -0700 | [diff] [blame] | 761 | unsigned long size = end - start + 1; |
| 762 | int ret = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 763 | |
Dominik Brodowski | 1146bc7 | 2005-09-28 19:28:37 +0200 | [diff] [blame] | 764 | if (end < start) |
Dominik Brodowski | 2291663 | 2005-06-27 16:28:46 -0700 | [diff] [blame] | 765 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 766 | |
Dominik Brodowski | 2291663 | 2005-06-27 16:28:46 -0700 | [diff] [blame] | 767 | switch (action) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 768 | case ADD_MANAGED_RESOURCE: |
Dominik Brodowski | 2291663 | 2005-06-27 16:28:46 -0700 | [diff] [blame] | 769 | ret = add_interval(&data->mem_db, start, size); |
Dominik Brodowski | 3f32b3c | 2010-01-02 22:22:50 +0100 | [diff] [blame] | 770 | if (!ret) |
| 771 | do_mem_probe(s, start, size, NULL, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 772 | break; |
| 773 | case REMOVE_MANAGED_RESOURCE: |
Dominik Brodowski | 2291663 | 2005-06-27 16:28:46 -0700 | [diff] [blame] | 774 | ret = sub_interval(&data->mem_db, start, size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 775 | break; |
| 776 | default: |
Dominik Brodowski | 2291663 | 2005-06-27 16:28:46 -0700 | [diff] [blame] | 777 | ret = -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 778 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 779 | |
| 780 | return ret; |
| 781 | } |
| 782 | |
| 783 | |
Dominik Brodowski | 2291663 | 2005-06-27 16:28:46 -0700 | [diff] [blame] | 784 | static int adjust_io(struct pcmcia_socket *s, unsigned int action, unsigned long start, unsigned long end) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 785 | { |
| 786 | struct socket_data *data = s->resource_data; |
Dominik Brodowski | 2291663 | 2005-06-27 16:28:46 -0700 | [diff] [blame] | 787 | unsigned long size = end - start + 1; |
| 788 | int ret = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 789 | |
Dominik Brodowski | 1146bc7 | 2005-09-28 19:28:37 +0200 | [diff] [blame] | 790 | if (end < start) |
Dominik Brodowski | 2291663 | 2005-06-27 16:28:46 -0700 | [diff] [blame] | 791 | return -EINVAL; |
| 792 | |
| 793 | if (end > IO_SPACE_LIMIT) |
| 794 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 795 | |
Dominik Brodowski | 2291663 | 2005-06-27 16:28:46 -0700 | [diff] [blame] | 796 | switch (action) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 797 | case ADD_MANAGED_RESOURCE: |
Dominik Brodowski | 2291663 | 2005-06-27 16:28:46 -0700 | [diff] [blame] | 798 | if (add_interval(&data->io_db, start, size) != 0) { |
| 799 | ret = -EBUSY; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 800 | break; |
| 801 | } |
| 802 | #ifdef CONFIG_PCMCIA_PROBE |
| 803 | if (probe_io) |
Dominik Brodowski | 2291663 | 2005-06-27 16:28:46 -0700 | [diff] [blame] | 804 | do_io_probe(s, start, size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 805 | #endif |
| 806 | break; |
| 807 | case REMOVE_MANAGED_RESOURCE: |
Dominik Brodowski | 2291663 | 2005-06-27 16:28:46 -0700 | [diff] [blame] | 808 | sub_interval(&data->io_db, start, size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 809 | break; |
| 810 | default: |
Dominik Brodowski | 2291663 | 2005-06-27 16:28:46 -0700 | [diff] [blame] | 811 | ret = -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 812 | break; |
| 813 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 814 | |
| 815 | return ret; |
| 816 | } |
| 817 | |
| 818 | |
Dominik Brodowski | 3c29976 | 2005-06-27 16:28:46 -0700 | [diff] [blame] | 819 | #ifdef CONFIG_PCI |
| 820 | static int nonstatic_autoadd_resources(struct pcmcia_socket *s) |
| 821 | { |
| 822 | struct resource *res; |
| 823 | int i, done = 0; |
| 824 | |
| 825 | if (!s->cb_dev || !s->cb_dev->bus) |
| 826 | return -ENODEV; |
| 827 | |
Brian Gerst | 0d078f6 | 2005-10-30 14:59:20 -0800 | [diff] [blame] | 828 | #if defined(CONFIG_X86) |
Dominik Brodowski | b6d00f0 | 2005-06-27 16:29:02 -0700 | [diff] [blame] | 829 | /* If this is the root bus, the risk of hitting |
| 830 | * some strange system devices which aren't protected |
| 831 | * by either ACPI resource tables or properly requested |
| 832 | * resources is too big. Therefore, don't do auto-adding |
| 833 | * of resources at the moment. |
| 834 | */ |
| 835 | if (s->cb_dev->bus->number == 0) |
| 836 | return -EINVAL; |
| 837 | #endif |
| 838 | |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 839 | for (i = 0; i < PCI_BUS_NUM_RESOURCES; i++) { |
Dominik Brodowski | 3c29976 | 2005-06-27 16:28:46 -0700 | [diff] [blame] | 840 | res = s->cb_dev->bus->resource[i]; |
| 841 | if (!res) |
| 842 | continue; |
| 843 | |
| 844 | if (res->flags & IORESOURCE_IO) { |
| 845 | if (res == &ioport_resource) |
| 846 | continue; |
Dominik Brodowski | dbe4ea5 | 2008-08-02 21:36:19 +0200 | [diff] [blame] | 847 | dev_printk(KERN_INFO, &s->cb_dev->dev, |
| 848 | "pcmcia: parent PCI bridge I/O " |
| 849 | "window: 0x%llx - 0x%llx\n", |
| 850 | (unsigned long long)res->start, |
| 851 | (unsigned long long)res->end); |
Dominik Brodowski | 3c29976 | 2005-06-27 16:28:46 -0700 | [diff] [blame] | 852 | if (!adjust_io(s, ADD_MANAGED_RESOURCE, res->start, res->end)) |
| 853 | done |= IORESOURCE_IO; |
| 854 | |
| 855 | } |
| 856 | |
| 857 | if (res->flags & IORESOURCE_MEM) { |
| 858 | if (res == &iomem_resource) |
| 859 | continue; |
Dominik Brodowski | dbe4ea5 | 2008-08-02 21:36:19 +0200 | [diff] [blame] | 860 | dev_printk(KERN_INFO, &s->cb_dev->dev, |
| 861 | "pcmcia: parent PCI bridge Memory " |
| 862 | "window: 0x%llx - 0x%llx\n", |
| 863 | (unsigned long long)res->start, |
| 864 | (unsigned long long)res->end); |
Dominik Brodowski | 3c29976 | 2005-06-27 16:28:46 -0700 | [diff] [blame] | 865 | if (!adjust_memory(s, ADD_MANAGED_RESOURCE, res->start, res->end)) |
| 866 | done |= IORESOURCE_MEM; |
| 867 | } |
| 868 | } |
| 869 | |
| 870 | /* if we got at least one of IO, and one of MEM, we can be glad and |
| 871 | * activate the PCMCIA subsystem */ |
Dominik Brodowski | 54bb567 | 2005-09-28 19:29:59 +0200 | [diff] [blame] | 872 | if (done == (IORESOURCE_MEM | IORESOURCE_IO)) |
Dominik Brodowski | 3c29976 | 2005-06-27 16:28:46 -0700 | [diff] [blame] | 873 | s->resource_setup_done = 1; |
| 874 | |
| 875 | return 0; |
| 876 | } |
| 877 | |
| 878 | #else |
| 879 | |
| 880 | static inline int nonstatic_autoadd_resources(struct pcmcia_socket *s) |
| 881 | { |
| 882 | return -ENODEV; |
| 883 | } |
| 884 | |
| 885 | #endif |
| 886 | |
| 887 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 888 | static int nonstatic_init(struct pcmcia_socket *s) |
| 889 | { |
| 890 | struct socket_data *data; |
| 891 | |
Dominik Brodowski | 8084b37 | 2005-12-11 21:18:26 +0100 | [diff] [blame] | 892 | data = kzalloc(sizeof(struct socket_data), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 893 | if (!data) |
| 894 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 895 | |
| 896 | data->mem_db.next = &data->mem_db; |
| 897 | data->io_db.next = &data->io_db; |
| 898 | |
| 899 | s->resource_data = (void *) data; |
| 900 | |
Dominik Brodowski | 3c29976 | 2005-06-27 16:28:46 -0700 | [diff] [blame] | 901 | nonstatic_autoadd_resources(s); |
| 902 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 903 | return 0; |
| 904 | } |
| 905 | |
| 906 | static void nonstatic_release_resource_db(struct pcmcia_socket *s) |
| 907 | { |
| 908 | struct socket_data *data = s->resource_data; |
| 909 | struct resource_map *p, *q; |
| 910 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 911 | for (p = data->mem_db.next; p != &data->mem_db; p = q) { |
| 912 | q = p->next; |
| 913 | kfree(p); |
| 914 | } |
| 915 | for (p = data->io_db.next; p != &data->io_db; p = q) { |
| 916 | q = p->next; |
| 917 | kfree(p); |
| 918 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 919 | } |
| 920 | |
| 921 | |
| 922 | struct pccard_resource_ops pccard_nonstatic_ops = { |
| 923 | .validate_mem = pcmcia_nonstatic_validate_mem, |
| 924 | .adjust_io_region = nonstatic_adjust_io_region, |
| 925 | .find_io = nonstatic_find_io_region, |
| 926 | .find_mem = nonstatic_find_mem_region, |
Dominik Brodowski | c502380 | 2008-06-19 19:02:52 +0200 | [diff] [blame] | 927 | .add_io = adjust_io, |
| 928 | .add_mem = adjust_memory, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 929 | .init = nonstatic_init, |
| 930 | .exit = nonstatic_release_resource_db, |
| 931 | }; |
| 932 | EXPORT_SYMBOL(pccard_nonstatic_ops); |
| 933 | |
| 934 | |
| 935 | /* sysfs interface to the resource database */ |
| 936 | |
Greg Kroah-Hartman | 8737331 | 2006-09-12 17:00:10 +0200 | [diff] [blame] | 937 | static ssize_t show_io_db(struct device *dev, |
| 938 | struct device_attribute *attr, char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 939 | { |
Greg Kroah-Hartman | 8737331 | 2006-09-12 17:00:10 +0200 | [diff] [blame] | 940 | struct pcmcia_socket *s = dev_get_drvdata(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 941 | struct socket_data *data; |
| 942 | struct resource_map *p; |
| 943 | ssize_t ret = 0; |
| 944 | |
Dominik Brodowski | cfe5d80 | 2010-01-17 19:31:45 +0100 | [diff] [blame^] | 945 | mutex_lock(&s->ops_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 946 | data = s->resource_data; |
| 947 | |
| 948 | for (p = data->io_db.next; p != &data->io_db; p = p->next) { |
| 949 | if (ret > (PAGE_SIZE - 10)) |
| 950 | continue; |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 951 | ret += snprintf(&buf[ret], (PAGE_SIZE - ret - 1), |
| 952 | "0x%08lx - 0x%08lx\n", |
| 953 | ((unsigned long) p->base), |
| 954 | ((unsigned long) p->base + p->num - 1)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 955 | } |
| 956 | |
Dominik Brodowski | cfe5d80 | 2010-01-17 19:31:45 +0100 | [diff] [blame^] | 957 | mutex_unlock(&s->ops_mutex); |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 958 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 959 | } |
| 960 | |
Greg Kroah-Hartman | 8737331 | 2006-09-12 17:00:10 +0200 | [diff] [blame] | 961 | static ssize_t store_io_db(struct device *dev, |
| 962 | struct device_attribute *attr, |
| 963 | const char *buf, size_t count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 964 | { |
Greg Kroah-Hartman | 8737331 | 2006-09-12 17:00:10 +0200 | [diff] [blame] | 965 | struct pcmcia_socket *s = dev_get_drvdata(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 966 | unsigned long start_addr, end_addr; |
Dominik Brodowski | 2291663 | 2005-06-27 16:28:46 -0700 | [diff] [blame] | 967 | unsigned int add = ADD_MANAGED_RESOURCE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 968 | ssize_t ret = 0; |
| 969 | |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 970 | ret = sscanf(buf, "+ 0x%lx - 0x%lx", &start_addr, &end_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 971 | if (ret != 2) { |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 972 | ret = sscanf(buf, "- 0x%lx - 0x%lx", &start_addr, &end_addr); |
Dominik Brodowski | 2291663 | 2005-06-27 16:28:46 -0700 | [diff] [blame] | 973 | add = REMOVE_MANAGED_RESOURCE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 974 | if (ret != 2) { |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 975 | ret = sscanf(buf, "0x%lx - 0x%lx", &start_addr, |
| 976 | &end_addr); |
Dominik Brodowski | 2291663 | 2005-06-27 16:28:46 -0700 | [diff] [blame] | 977 | add = ADD_MANAGED_RESOURCE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 978 | if (ret != 2) |
| 979 | return -EINVAL; |
| 980 | } |
| 981 | } |
Dominik Brodowski | 1146bc7 | 2005-09-28 19:28:37 +0200 | [diff] [blame] | 982 | if (end_addr < start_addr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 983 | return -EINVAL; |
| 984 | |
Dominik Brodowski | cfe5d80 | 2010-01-17 19:31:45 +0100 | [diff] [blame^] | 985 | mutex_lock(&s->ops_mutex); |
Dominik Brodowski | 2291663 | 2005-06-27 16:28:46 -0700 | [diff] [blame] | 986 | ret = adjust_io(s, add, start_addr, end_addr); |
Dominik Brodowski | 3c29976 | 2005-06-27 16:28:46 -0700 | [diff] [blame] | 987 | if (!ret) |
| 988 | s->resource_setup_new = 1; |
Dominik Brodowski | cfe5d80 | 2010-01-17 19:31:45 +0100 | [diff] [blame^] | 989 | mutex_unlock(&s->ops_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 990 | |
| 991 | return ret ? ret : count; |
| 992 | } |
Greg Kroah-Hartman | 8737331 | 2006-09-12 17:00:10 +0200 | [diff] [blame] | 993 | static DEVICE_ATTR(available_resources_io, 0600, show_io_db, store_io_db); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 994 | |
Greg Kroah-Hartman | 8737331 | 2006-09-12 17:00:10 +0200 | [diff] [blame] | 995 | static ssize_t show_mem_db(struct device *dev, |
| 996 | struct device_attribute *attr, char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 997 | { |
Greg Kroah-Hartman | 8737331 | 2006-09-12 17:00:10 +0200 | [diff] [blame] | 998 | struct pcmcia_socket *s = dev_get_drvdata(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 999 | struct socket_data *data; |
| 1000 | struct resource_map *p; |
| 1001 | ssize_t ret = 0; |
| 1002 | |
Dominik Brodowski | cfe5d80 | 2010-01-17 19:31:45 +0100 | [diff] [blame^] | 1003 | mutex_lock(&s->ops_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1004 | data = s->resource_data; |
| 1005 | |
| 1006 | for (p = data->mem_db.next; p != &data->mem_db; p = p->next) { |
| 1007 | if (ret > (PAGE_SIZE - 10)) |
| 1008 | continue; |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 1009 | ret += snprintf(&buf[ret], (PAGE_SIZE - ret - 1), |
| 1010 | "0x%08lx - 0x%08lx\n", |
| 1011 | ((unsigned long) p->base), |
| 1012 | ((unsigned long) p->base + p->num - 1)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1013 | } |
| 1014 | |
Dominik Brodowski | cfe5d80 | 2010-01-17 19:31:45 +0100 | [diff] [blame^] | 1015 | mutex_unlock(&s->ops_mutex); |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 1016 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1017 | } |
| 1018 | |
Greg Kroah-Hartman | 8737331 | 2006-09-12 17:00:10 +0200 | [diff] [blame] | 1019 | static ssize_t store_mem_db(struct device *dev, |
| 1020 | struct device_attribute *attr, |
| 1021 | const char *buf, size_t count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1022 | { |
Greg Kroah-Hartman | 8737331 | 2006-09-12 17:00:10 +0200 | [diff] [blame] | 1023 | struct pcmcia_socket *s = dev_get_drvdata(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1024 | unsigned long start_addr, end_addr; |
Dominik Brodowski | 2291663 | 2005-06-27 16:28:46 -0700 | [diff] [blame] | 1025 | unsigned int add = ADD_MANAGED_RESOURCE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1026 | ssize_t ret = 0; |
| 1027 | |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 1028 | ret = sscanf(buf, "+ 0x%lx - 0x%lx", &start_addr, &end_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1029 | if (ret != 2) { |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 1030 | ret = sscanf(buf, "- 0x%lx - 0x%lx", &start_addr, &end_addr); |
Dominik Brodowski | 2291663 | 2005-06-27 16:28:46 -0700 | [diff] [blame] | 1031 | add = REMOVE_MANAGED_RESOURCE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1032 | if (ret != 2) { |
Dominik Brodowski | 9fea84f | 2009-12-07 22:11:45 +0100 | [diff] [blame] | 1033 | ret = sscanf(buf, "0x%lx - 0x%lx", &start_addr, |
| 1034 | &end_addr); |
Dominik Brodowski | 2291663 | 2005-06-27 16:28:46 -0700 | [diff] [blame] | 1035 | add = ADD_MANAGED_RESOURCE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1036 | if (ret != 2) |
| 1037 | return -EINVAL; |
| 1038 | } |
| 1039 | } |
Dominik Brodowski | 1146bc7 | 2005-09-28 19:28:37 +0200 | [diff] [blame] | 1040 | if (end_addr < start_addr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1041 | return -EINVAL; |
| 1042 | |
Dominik Brodowski | cfe5d80 | 2010-01-17 19:31:45 +0100 | [diff] [blame^] | 1043 | mutex_lock(&s->ops_mutex); |
Dominik Brodowski | 2291663 | 2005-06-27 16:28:46 -0700 | [diff] [blame] | 1044 | ret = adjust_memory(s, add, start_addr, end_addr); |
Dominik Brodowski | 3c29976 | 2005-06-27 16:28:46 -0700 | [diff] [blame] | 1045 | if (!ret) |
| 1046 | s->resource_setup_new = 1; |
Dominik Brodowski | cfe5d80 | 2010-01-17 19:31:45 +0100 | [diff] [blame^] | 1047 | mutex_unlock(&s->ops_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1048 | |
| 1049 | return ret ? ret : count; |
| 1050 | } |
Greg Kroah-Hartman | 8737331 | 2006-09-12 17:00:10 +0200 | [diff] [blame] | 1051 | static DEVICE_ATTR(available_resources_mem, 0600, show_mem_db, store_mem_db); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1052 | |
David Brownell | 7d57896 | 2008-06-12 12:13:55 -0700 | [diff] [blame] | 1053 | static struct attribute *pccard_rsrc_attributes[] = { |
| 1054 | &dev_attr_available_resources_io.attr, |
| 1055 | &dev_attr_available_resources_mem.attr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1056 | NULL, |
| 1057 | }; |
| 1058 | |
David Brownell | 7d57896 | 2008-06-12 12:13:55 -0700 | [diff] [blame] | 1059 | static const struct attribute_group rsrc_attributes = { |
| 1060 | .attrs = pccard_rsrc_attributes, |
| 1061 | }; |
| 1062 | |
Greg Kroah-Hartman | 8737331 | 2006-09-12 17:00:10 +0200 | [diff] [blame] | 1063 | static int __devinit pccard_sysfs_add_rsrc(struct device *dev, |
Dmitry Torokhov | d8539d8 | 2005-09-15 02:01:36 -0500 | [diff] [blame] | 1064 | struct class_interface *class_intf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1065 | { |
Greg Kroah-Hartman | 8737331 | 2006-09-12 17:00:10 +0200 | [diff] [blame] | 1066 | struct pcmcia_socket *s = dev_get_drvdata(dev); |
David Brownell | 7d57896 | 2008-06-12 12:13:55 -0700 | [diff] [blame] | 1067 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1068 | if (s->resource_ops != &pccard_nonstatic_ops) |
| 1069 | return 0; |
David Brownell | 7d57896 | 2008-06-12 12:13:55 -0700 | [diff] [blame] | 1070 | return sysfs_create_group(&dev->kobj, &rsrc_attributes); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1071 | } |
| 1072 | |
Greg Kroah-Hartman | 8737331 | 2006-09-12 17:00:10 +0200 | [diff] [blame] | 1073 | static void __devexit pccard_sysfs_remove_rsrc(struct device *dev, |
Dmitry Torokhov | d8539d8 | 2005-09-15 02:01:36 -0500 | [diff] [blame] | 1074 | struct class_interface *class_intf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1075 | { |
Greg Kroah-Hartman | 8737331 | 2006-09-12 17:00:10 +0200 | [diff] [blame] | 1076 | struct pcmcia_socket *s = dev_get_drvdata(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1077 | |
| 1078 | if (s->resource_ops != &pccard_nonstatic_ops) |
| 1079 | return; |
David Brownell | 7d57896 | 2008-06-12 12:13:55 -0700 | [diff] [blame] | 1080 | sysfs_remove_group(&dev->kobj, &rsrc_attributes); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1081 | } |
| 1082 | |
Sam Ravnborg | ed49f5d | 2008-05-01 04:34:50 -0700 | [diff] [blame] | 1083 | static struct class_interface pccard_rsrc_interface __refdata = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1084 | .class = &pcmcia_socket_class, |
Greg Kroah-Hartman | 8737331 | 2006-09-12 17:00:10 +0200 | [diff] [blame] | 1085 | .add_dev = &pccard_sysfs_add_rsrc, |
| 1086 | .remove_dev = __devexit_p(&pccard_sysfs_remove_rsrc), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1087 | }; |
| 1088 | |
| 1089 | static int __init nonstatic_sysfs_init(void) |
| 1090 | { |
| 1091 | return class_interface_register(&pccard_rsrc_interface); |
| 1092 | } |
| 1093 | |
| 1094 | static void __exit nonstatic_sysfs_exit(void) |
| 1095 | { |
| 1096 | class_interface_unregister(&pccard_rsrc_interface); |
| 1097 | } |
| 1098 | |
| 1099 | module_init(nonstatic_sysfs_init); |
| 1100 | module_exit(nonstatic_sysfs_exit); |