Commit | Line | Data |
---|---|---|
1a8d4663 DB |
1 | /* |
2 | * PCMCIA 16-bit resource management functions | |
3 | * | |
4 | * The initial developer of the original code is David A. Hinds | |
5 | * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds | |
6 | * are Copyright (C) 1999 David A. Hinds. All Rights Reserved. | |
7 | * | |
8 | * Copyright (C) 1999 David A. Hinds | |
9485ee14 | 9 | * Copyright (C) 2004-2010 Dominik Brodowski |
1a8d4663 DB |
10 | * |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License version 2 as | |
13 | * published by the Free Software Foundation. | |
14 | * | |
15 | */ | |
16 | ||
1a8d4663 DB |
17 | #include <linux/module.h> |
18 | #include <linux/kernel.h> | |
19 | #include <linux/interrupt.h> | |
20 | #include <linux/delay.h> | |
21 | #include <linux/pci.h> | |
22 | #include <linux/device.h> | |
91284224 | 23 | #include <linux/netdevice.h> |
5a0e3ad6 | 24 | #include <linux/slab.h> |
1a8d4663 | 25 | |
6f0f38c4 DB |
26 | #include <asm/irq.h> |
27 | ||
1a8d4663 | 28 | #include <pcmcia/ss.h> |
1a8d4663 DB |
29 | #include <pcmcia/cistpl.h> |
30 | #include <pcmcia/cisreg.h> | |
31 | #include <pcmcia/ds.h> | |
32 | ||
33 | #include "cs_internal.h" | |
1a8d4663 DB |
34 | |
35 | ||
1a8d4663 | 36 | /* Access speed for IO windows */ |
9fea84f4 | 37 | static int io_speed; |
1a8d4663 DB |
38 | module_param(io_speed, int, 0444); |
39 | ||
40 | ||
a3ac9af5 DB |
41 | int pcmcia_validate_mem(struct pcmcia_socket *s) |
42 | { | |
43 | if (s->resource_ops->validate_mem) | |
44 | return s->resource_ops->validate_mem(s); | |
45 | /* if there is no callback, we can assume that everything is OK */ | |
46 | return 0; | |
47 | } | |
48 | ||
49 | struct resource *pcmcia_find_mem_region(u_long base, u_long num, u_long align, | |
50 | int low, struct pcmcia_socket *s) | |
51 | { | |
52 | if (s->resource_ops->find_mem) | |
53 | return s->resource_ops->find_mem(base, num, align, low, s); | |
54 | return NULL; | |
55 | } | |
56 | ||
1a8d4663 | 57 | |
9485ee14 DB |
58 | /** |
59 | * release_io_space() - release IO ports allocated with alloc_io_space() | |
60 | * @s: pcmcia socket | |
61 | * @res: resource to release | |
62 | * | |
63 | */ | |
ad0c7be2 DB |
64 | static void release_io_space(struct pcmcia_socket *s, struct resource *res) |
65 | { | |
66 | resource_size_t num = resource_size(res); | |
67 | int i; | |
68 | ||
69 | dev_dbg(&s->dev, "release_io_space for %pR\n", res); | |
70 | ||
71 | for (i = 0; i < MAX_IO_WIN; i++) { | |
72 | if (!s->io[i].res) | |
73 | continue; | |
74 | if ((s->io[i].res->start <= res->start) && | |
75 | (s->io[i].res->end >= res->end)) { | |
76 | s->io[i].InUse -= num; | |
77 | if (res->parent) | |
78 | release_resource(res); | |
79 | res->start = res->end = 0; | |
80 | res->flags = IORESOURCE_IO; | |
81 | /* Free the window if no one else is using it */ | |
82 | if (s->io[i].InUse == 0) { | |
83 | release_resource(s->io[i].res); | |
84 | kfree(s->io[i].res); | |
85 | s->io[i].res = NULL; | |
86 | } | |
87 | } | |
88 | } | |
9485ee14 DB |
89 | } |
90 | ||
ad0c7be2 | 91 | |
9485ee14 DB |
92 | /** |
93 | * alloc_io_space() - allocate IO ports for use by a PCMCIA device | |
94 | * @s: pcmcia socket | |
95 | * @res: resource to allocate (begin: begin, end: size) | |
96 | * @lines: number of IO lines decoded by the PCMCIA card | |
1a8d4663 DB |
97 | * |
98 | * Special stuff for managing IO windows, because they are scarce | |
99 | */ | |
2ce4905e DB |
100 | static int alloc_io_space(struct pcmcia_socket *s, struct resource *res, |
101 | unsigned int lines) | |
1a8d4663 | 102 | { |
b19a7275 | 103 | unsigned int align; |
2ce4905e DB |
104 | unsigned int base = res->start; |
105 | unsigned int num = res->end; | |
106 | int ret; | |
107 | ||
108 | res->flags |= IORESOURCE_IO; | |
1a8d4663 | 109 | |
90abdc3b DB |
110 | dev_dbg(&s->dev, "alloc_io_space request for %pR, %d lines\n", |
111 | res, lines); | |
2ce4905e DB |
112 | |
113 | align = base ? (lines ? 1<<lines : 0) : 1; | |
1a8d4663 | 114 | if (align && (align < num)) { |
2ce4905e DB |
115 | if (base) { |
116 | dev_dbg(&s->dev, "odd IO request\n"); | |
1a8d4663 DB |
117 | align = 0; |
118 | } else | |
9fea84f4 DB |
119 | while (align && (align < num)) |
120 | align <<= 1; | |
1a8d4663 | 121 | } |
2ce4905e DB |
122 | if (base & ~(align-1)) { |
123 | dev_dbg(&s->dev, "odd IO request\n"); | |
1a8d4663 DB |
124 | align = 0; |
125 | } | |
b19a7275 | 126 | |
ad0c7be2 DB |
127 | ret = s->resource_ops->find_io(s, res->flags, &base, num, align, |
128 | &res->parent); | |
2ce4905e | 129 | if (ret) { |
ad0c7be2 | 130 | dev_dbg(&s->dev, "alloc_io_space request failed (%d)\n", ret); |
2ce4905e DB |
131 | return -EINVAL; |
132 | } | |
133 | ||
134 | res->start = base; | |
135 | res->end = res->start + num - 1; | |
1a8d4663 | 136 | |
ad0c7be2 DB |
137 | if (res->parent) { |
138 | ret = request_resource(res->parent, res); | |
139 | if (ret) { | |
140 | dev_warn(&s->dev, | |
141 | "request_resource %pR failed: %d\n", res, ret); | |
142 | res->parent = NULL; | |
143 | release_io_space(s, res); | |
1a8d4663 DB |
144 | } |
145 | } | |
ad0c7be2 DB |
146 | dev_dbg(&s->dev, "alloc_io_space request result %d: %pR\n", ret, res); |
147 | return ret; | |
9485ee14 | 148 | } |
1a8d4663 DB |
149 | |
150 | ||
1d5cc192 DB |
151 | /** |
152 | * pcmcia_access_config() - read or write card configuration registers | |
1a8d4663 | 153 | * |
1d5cc192 DB |
154 | * pcmcia_access_config() reads and writes configuration registers in |
155 | * attribute memory. Memory window 0 is reserved for this and the tuple | |
156 | * reading services. Drivers must use pcmcia_read_config_byte() or | |
157 | * pcmcia_write_config_byte(). | |
1a8d4663 | 158 | */ |
1d5cc192 DB |
159 | static int pcmcia_access_config(struct pcmcia_device *p_dev, |
160 | off_t where, u8 *val, | |
161 | int (*accessf) (struct pcmcia_socket *s, | |
162 | int attr, unsigned int addr, | |
163 | unsigned int len, void *ptr)) | |
1a8d4663 | 164 | { |
855cdf13 | 165 | struct pcmcia_socket *s; |
1a8d4663 DB |
166 | config_t *c; |
167 | int addr; | |
059f667d | 168 | int ret = 0; |
1a8d4663 | 169 | |
855cdf13 | 170 | s = p_dev->socket; |
94a819f8 DB |
171 | |
172 | mutex_lock(&s->ops_mutex); | |
855cdf13 | 173 | c = p_dev->function_config; |
1a8d4663 | 174 | |
6d9a299f | 175 | if (!(c->state & CONFIG_LOCKED)) { |
e9c54999 | 176 | dev_dbg(&p_dev->dev, "Configuration isn't locked\n"); |
94a819f8 | 177 | mutex_unlock(&s->ops_mutex); |
943f70f1 | 178 | return -EACCES; |
6d9a299f | 179 | } |
1a8d4663 | 180 | |
7feabb64 | 181 | addr = (p_dev->config_base + where) >> 1; |
1d5cc192 DB |
182 | |
183 | ret = accessf(s, 1, addr, 1, val); | |
184 | ||
059f667d | 185 | mutex_unlock(&s->ops_mutex); |
1d5cc192 | 186 | |
059f667d | 187 | return ret; |
9485ee14 | 188 | } |
1d5cc192 DB |
189 | |
190 | ||
191 | /** | |
192 | * pcmcia_read_config_byte() - read a byte from a card configuration register | |
193 | * | |
194 | * pcmcia_read_config_byte() reads a byte from a configuration register in | |
195 | * attribute memory. | |
196 | */ | |
197 | int pcmcia_read_config_byte(struct pcmcia_device *p_dev, off_t where, u8 *val) | |
198 | { | |
199 | return pcmcia_access_config(p_dev, where, val, pcmcia_read_cis_mem); | |
200 | } | |
201 | EXPORT_SYMBOL(pcmcia_read_config_byte); | |
202 | ||
203 | ||
204 | /** | |
205 | * pcmcia_write_config_byte() - write a byte to a card configuration register | |
206 | * | |
207 | * pcmcia_write_config_byte() writes a byte to a configuration register in | |
208 | * attribute memory. | |
209 | */ | |
210 | int pcmcia_write_config_byte(struct pcmcia_device *p_dev, off_t where, u8 val) | |
211 | { | |
212 | return pcmcia_access_config(p_dev, where, &val, pcmcia_write_cis_mem); | |
213 | } | |
214 | EXPORT_SYMBOL(pcmcia_write_config_byte); | |
3448139b | 215 | |
1a8d4663 | 216 | |
9485ee14 DB |
217 | /** |
218 | * pcmcia_map_mem_page() - modify iomem window to point to a different offset | |
219 | * @p_dev: pcmcia device | |
220 | * @res: iomem resource already enabled by pcmcia_request_window() | |
221 | * @offset: card_offset to map | |
222 | * | |
223 | * pcmcia_map_mem_page() modifies what can be read and written by accessing | |
224 | * an iomem range previously enabled by pcmcia_request_window(), by setting | |
225 | * the card_offset value to @offset. | |
226 | */ | |
cdb13808 | 227 | int pcmcia_map_mem_page(struct pcmcia_device *p_dev, struct resource *res, |
b5cb259e | 228 | unsigned int offset) |
1a8d4663 | 229 | { |
0bdf9b3d | 230 | struct pcmcia_socket *s = p_dev->socket; |
0ca724d3 | 231 | unsigned int w; |
6b8e087b | 232 | int ret; |
868575d1 | 233 | |
0ca724d3 DB |
234 | w = ((res->flags & IORESOURCE_BITS & WIN_FLAGS_REQ) >> 2) - 1; |
235 | if (w >= MAX_WIN) | |
ffb8da20 | 236 | return -EINVAL; |
b5cb259e | 237 | |
6b8e087b | 238 | mutex_lock(&s->ops_mutex); |
0ca724d3 DB |
239 | s->win[w].card_start = offset; |
240 | ret = s->ops->set_mem_map(s, &s->win[w]); | |
6b8e087b | 241 | if (ret) |
eb838fe1 | 242 | dev_warn(&p_dev->dev, "failed to set_mem_map\n"); |
6b8e087b DB |
243 | mutex_unlock(&s->ops_mutex); |
244 | return ret; | |
9485ee14 | 245 | } |
1a8d4663 DB |
246 | EXPORT_SYMBOL(pcmcia_map_mem_page); |
247 | ||
248 | ||
fb49fa53 DB |
249 | /** |
250 | * pcmcia_fixup_iowidth() - reduce io width to 8bit | |
9485ee14 | 251 | * @p_dev: pcmcia device |
1a8d4663 | 252 | * |
fb49fa53 | 253 | * pcmcia_fixup_iowidth() allows a PCMCIA device driver to reduce the |
1ac71e5a | 254 | * IO width to 8bit after having called pcmcia_enable_device() |
fb49fa53 | 255 | * previously. |
1a8d4663 | 256 | */ |
fb49fa53 | 257 | int pcmcia_fixup_iowidth(struct pcmcia_device *p_dev) |
1a8d4663 | 258 | { |
fb49fa53 DB |
259 | struct pcmcia_socket *s = p_dev->socket; |
260 | pccard_io_map io_off = { 0, 0, 0, 0, 1 }; | |
261 | pccard_io_map io_on; | |
262 | int i, ret = 0; | |
94a819f8 DB |
263 | |
264 | mutex_lock(&s->ops_mutex); | |
dbb22f0d | 265 | |
fb49fa53 DB |
266 | dev_dbg(&p_dev->dev, "fixup iowidth to 8bit\n"); |
267 | ||
268 | if (!(s->state & SOCKET_PRESENT) || | |
269 | !(p_dev->function_config->state & CONFIG_LOCKED)) { | |
270 | dev_dbg(&p_dev->dev, "No card? Config not locked?\n"); | |
4e06e240 JS |
271 | ret = -EACCES; |
272 | goto unlock; | |
6d9a299f | 273 | } |
1a8d4663 | 274 | |
fb49fa53 DB |
275 | io_on.speed = io_speed; |
276 | for (i = 0; i < MAX_IO_WIN; i++) { | |
277 | if (!s->io[i].res) | |
278 | continue; | |
279 | io_off.map = i; | |
280 | io_on.map = i; | |
281 | ||
282 | io_on.flags = MAP_ACTIVE | IO_DATA_PATH_WIDTH_8; | |
283 | io_on.start = s->io[i].res->start; | |
284 | io_on.stop = s->io[i].res->end; | |
285 | ||
286 | s->ops->set_io_map(s, &io_off); | |
287 | mdelay(40); | |
288 | s->ops->set_io_map(s, &io_on); | |
d8b0a49d | 289 | } |
fb49fa53 DB |
290 | unlock: |
291 | mutex_unlock(&s->ops_mutex); | |
1a8d4663 | 292 | |
fb49fa53 DB |
293 | return ret; |
294 | } | |
295 | EXPORT_SYMBOL(pcmcia_fixup_iowidth); | |
296 | ||
297 | ||
298 | /** | |
299 | * pcmcia_fixup_vpp() - set Vpp to a new voltage level | |
9485ee14 DB |
300 | * @p_dev: pcmcia device |
301 | * @new_vpp: new Vpp voltage | |
fb49fa53 DB |
302 | * |
303 | * pcmcia_fixup_vpp() allows a PCMCIA device driver to set Vpp to | |
1ac71e5a | 304 | * a new voltage level between calls to pcmcia_enable_device() |
fb49fa53 DB |
305 | * and pcmcia_disable_device(). |
306 | */ | |
307 | int pcmcia_fixup_vpp(struct pcmcia_device *p_dev, unsigned char new_vpp) | |
308 | { | |
309 | struct pcmcia_socket *s = p_dev->socket; | |
310 | int ret = 0; | |
311 | ||
312 | mutex_lock(&s->ops_mutex); | |
313 | ||
314 | dev_dbg(&p_dev->dev, "fixup Vpp to %d\n", new_vpp); | |
315 | ||
316 | if (!(s->state & SOCKET_PRESENT) || | |
317 | !(p_dev->function_config->state & CONFIG_LOCKED)) { | |
318 | dev_dbg(&p_dev->dev, "No card? Config not locked?\n"); | |
319 | ret = -EACCES; | |
4e06e240 | 320 | goto unlock; |
d8b0a49d | 321 | } |
1a8d4663 | 322 | |
fb49fa53 DB |
323 | s->socket.Vpp = new_vpp; |
324 | if (s->ops->set_socket(s, &s->socket)) { | |
325 | dev_warn(&p_dev->dev, "Unable to set VPP\n"); | |
326 | ret = -EIO; | |
327 | goto unlock; | |
4bbed523 | 328 | } |
e8405f0f | 329 | p_dev->vpp = new_vpp; |
fb49fa53 | 330 | |
4e06e240 | 331 | unlock: |
94a819f8 | 332 | mutex_unlock(&s->ops_mutex); |
4bbed523 | 333 | |
4e06e240 | 334 | return ret; |
fb49fa53 DB |
335 | } |
336 | EXPORT_SYMBOL(pcmcia_fixup_vpp); | |
1a8d4663 DB |
337 | |
338 | ||
9485ee14 DB |
339 | /** |
340 | * pcmcia_release_configuration() - physically disable a PCMCIA device | |
341 | * @p_dev: pcmcia device | |
342 | * | |
343 | * pcmcia_release_configuration() is the 1:1 counterpart to | |
344 | * pcmcia_enable_device(): If a PCMCIA device is no longer used by any | |
345 | * driver, the Vpp voltage is set to 0, IRQs will no longer be generated, | |
346 | * and I/O ranges will be disabled. As pcmcia_release_io() and | |
347 | * pcmcia_release_window() still need to be called, device drivers are | |
348 | * expected to call pcmcia_disable_device() instead. | |
349 | */ | |
2bc5a9bd | 350 | int pcmcia_release_configuration(struct pcmcia_device *p_dev) |
1a8d4663 DB |
351 | { |
352 | pccard_io_map io = { 0, 0, 0, 0, 1 }; | |
2bc5a9bd | 353 | struct pcmcia_socket *s = p_dev->socket; |
94a819f8 | 354 | config_t *c; |
1a8d4663 DB |
355 | int i; |
356 | ||
9e86749c | 357 | mutex_lock(&s->ops_mutex); |
94a819f8 | 358 | c = p_dev->function_config; |
e2d40963 DB |
359 | if (p_dev->_locked) { |
360 | p_dev->_locked = 0; | |
1a8d4663 | 361 | if (--(s->lock_count) == 0) { |
9485ee14 | 362 | s->socket.flags = SS_OUTPUT_ENA; /* Is this correct? */ |
1a8d4663 DB |
363 | s->socket.Vpp = 0; |
364 | s->socket.io_irq = 0; | |
365 | s->ops->set_socket(s, &s->socket); | |
366 | } | |
5f2a71fc DB |
367 | } |
368 | if (c->state & CONFIG_LOCKED) { | |
369 | c->state &= ~CONFIG_LOCKED; | |
1a8d4663 DB |
370 | if (c->state & CONFIG_IO_REQ) |
371 | for (i = 0; i < MAX_IO_WIN; i++) { | |
c7d00693 | 372 | if (!s->io[i].res) |
1a8d4663 DB |
373 | continue; |
374 | s->io[i].Config--; | |
375 | if (s->io[i].Config != 0) | |
376 | continue; | |
377 | io.map = i; | |
378 | s->ops->set_io_map(s, &io); | |
379 | } | |
1a8d4663 | 380 | } |
9e86749c | 381 | mutex_unlock(&s->ops_mutex); |
1a8d4663 | 382 | |
4c89e88b | 383 | return 0; |
9485ee14 | 384 | } |
1a8d4663 DB |
385 | |
386 | ||
9485ee14 DB |
387 | /** |
388 | * pcmcia_release_io() - release I/O allocated by a PCMCIA device | |
389 | * @p_dev: pcmcia device | |
1a8d4663 | 390 | * |
9485ee14 DB |
391 | * pcmcia_release_io() releases the I/O ranges allocated by a PCMCIA |
392 | * device. This may be invoked some time after a card ejection has | |
393 | * already dumped the actual socket configuration, so if the client is | |
394 | * "stale", we don't bother checking the port ranges against the | |
395 | * current socket values. | |
1a8d4663 | 396 | */ |
2ce4905e | 397 | static int pcmcia_release_io(struct pcmcia_device *p_dev) |
1a8d4663 | 398 | { |
2bc5a9bd | 399 | struct pcmcia_socket *s = p_dev->socket; |
94a819f8 DB |
400 | int ret = -EINVAL; |
401 | config_t *c; | |
402 | ||
403 | mutex_lock(&s->ops_mutex); | |
9fea84f4 | 404 | if (!p_dev->_io) |
94a819f8 | 405 | goto out; |
5f2a71fc | 406 | |
2ce4905e | 407 | c = p_dev->function_config; |
1a8d4663 | 408 | |
2ce4905e | 409 | release_io_space(s, &c->io[0]); |
5f2a71fc | 410 | |
2ce4905e DB |
411 | if (c->io[1].end) |
412 | release_io_space(s, &c->io[1]); | |
1a8d4663 | 413 | |
2ce4905e DB |
414 | p_dev->_io = 0; |
415 | c->state &= ~CONFIG_IO_REQ; | |
1a8d4663 | 416 | |
94a819f8 DB |
417 | out: |
418 | mutex_unlock(&s->ops_mutex); | |
419 | ||
420 | return ret; | |
1a8d4663 | 421 | } /* pcmcia_release_io */ |
1a8d4663 | 422 | |
9485ee14 | 423 | |
cdb13808 DB |
424 | /** |
425 | * pcmcia_release_window() - release reserved iomem for PCMCIA devices | |
9485ee14 DB |
426 | * @p_dev: pcmcia device |
427 | * @res: iomem resource to release | |
cdb13808 | 428 | * |
9485ee14 | 429 | * pcmcia_release_window() releases &struct resource *res which was |
cdb13808 DB |
430 | * previously reserved by calling pcmcia_request_window(). |
431 | */ | |
0ca724d3 | 432 | int pcmcia_release_window(struct pcmcia_device *p_dev, struct resource *res) |
1a8d4663 | 433 | { |
0bdf9b3d | 434 | struct pcmcia_socket *s = p_dev->socket; |
82f88e36 | 435 | pccard_mem_map *win; |
0ca724d3 | 436 | unsigned int w; |
1a8d4663 | 437 | |
0ca724d3 DB |
438 | dev_dbg(&p_dev->dev, "releasing window %pR\n", res); |
439 | ||
440 | w = ((res->flags & IORESOURCE_BITS & WIN_FLAGS_REQ) >> 2) - 1; | |
441 | if (w >= MAX_WIN) | |
ffb8da20 | 442 | return -EINVAL; |
0bdf9b3d | 443 | |
6b8e087b | 444 | mutex_lock(&s->ops_mutex); |
0ca724d3 | 445 | win = &s->win[w]; |
0bdf9b3d | 446 | |
0ca724d3 | 447 | if (!(p_dev->_win & CLIENT_WIN_REQ(w))) { |
eb838fe1 | 448 | dev_dbg(&p_dev->dev, "not releasing unknown window\n"); |
6b8e087b | 449 | mutex_unlock(&s->ops_mutex); |
ffb8da20 | 450 | return -EINVAL; |
6d9a299f | 451 | } |
1a8d4663 DB |
452 | |
453 | /* Shut down memory window */ | |
82f88e36 DB |
454 | win->flags &= ~MAP_ACTIVE; |
455 | s->ops->set_mem_map(s, win); | |
0ca724d3 | 456 | s->state &= ~SOCKET_WIN_REQ(w); |
1a8d4663 DB |
457 | |
458 | /* Release system memory */ | |
82f88e36 | 459 | if (win->res) { |
ad0c7be2 | 460 | release_resource(res); |
82f88e36 DB |
461 | release_resource(win->res); |
462 | kfree(win->res); | |
463 | win->res = NULL; | |
1a8d4663 | 464 | } |
cdb13808 DB |
465 | res->start = res->end = 0; |
466 | res->flags = IORESOURCE_MEM; | |
0ca724d3 | 467 | p_dev->_win &= ~CLIENT_WIN_REQ(w); |
6b8e087b | 468 | mutex_unlock(&s->ops_mutex); |
1a8d4663 | 469 | |
4c89e88b | 470 | return 0; |
1a8d4663 DB |
471 | } /* pcmcia_release_window */ |
472 | EXPORT_SYMBOL(pcmcia_release_window); | |
473 | ||
9485ee14 | 474 | |
1ac71e5a DB |
475 | /** |
476 | * pcmcia_enable_device() - set up and activate a PCMCIA device | |
9485ee14 | 477 | * @p_dev: the associated PCMCIA device |
1ac71e5a | 478 | * |
9485ee14 DB |
479 | * pcmcia_enable_device() physically enables a PCMCIA device. It parses |
480 | * the flags passed to in @flags and stored in @p_dev->flags and sets up | |
481 | * the Vpp voltage, enables the speaker line, I/O ports and store proper | |
482 | * values to configuration registers. | |
1ac71e5a DB |
483 | */ |
484 | int pcmcia_enable_device(struct pcmcia_device *p_dev) | |
1a8d4663 DB |
485 | { |
486 | int i; | |
1ac71e5a | 487 | unsigned int base; |
2bc5a9bd | 488 | struct pcmcia_socket *s = p_dev->socket; |
1a8d4663 DB |
489 | config_t *c; |
490 | pccard_io_map iomap; | |
fc301101 DB |
491 | unsigned char status = 0; |
492 | unsigned char ext_status = 0; | |
7feabb64 | 493 | unsigned char option = 0; |
1ac71e5a | 494 | unsigned int flags = p_dev->config_flags; |
1a8d4663 | 495 | |
1a8d4663 | 496 | if (!(s->state & SOCKET_PRESENT)) |
d598de02 | 497 | return -ENODEV; |
1a8d4663 | 498 | |
94a819f8 | 499 | mutex_lock(&s->ops_mutex); |
dbb22f0d | 500 | c = p_dev->function_config; |
6d9a299f | 501 | if (c->state & CONFIG_LOCKED) { |
94a819f8 | 502 | mutex_unlock(&s->ops_mutex); |
eb838fe1 | 503 | dev_dbg(&p_dev->dev, "Configuration is locked\n"); |
943f70f1 | 504 | return -EACCES; |
6d9a299f | 505 | } |
1a8d4663 DB |
506 | |
507 | /* Do power control. We don't allow changes in Vcc. */ | |
e8405f0f | 508 | s->socket.Vpp = p_dev->vpp; |
d8b0a49d | 509 | if (s->ops->set_socket(s, &s->socket)) { |
9e86749c | 510 | mutex_unlock(&s->ops_mutex); |
eb838fe1 | 511 | dev_printk(KERN_WARNING, &p_dev->dev, |
d8b0a49d DB |
512 | "Unable to set socket state\n"); |
513 | return -EINVAL; | |
514 | } | |
1a8d4663 | 515 | |
1a8d4663 | 516 | /* Pick memory or I/O card, DMA mode, interrupt */ |
ff10fca5 DB |
517 | if (p_dev->_io || flags & CONF_ENABLE_IRQ) |
518 | flags |= CONF_ENABLE_IOCARD; | |
519 | if (flags & CONF_ENABLE_IOCARD) | |
1a8d4663 | 520 | s->socket.flags |= SS_IOCARD; |
33619f0d DB |
521 | if (flags & CONF_ENABLE_ZVCARD) |
522 | s->socket.flags |= SS_ZVCARD | SS_IOCARD; | |
1ac71e5a | 523 | if (flags & CONF_ENABLE_SPKR) { |
1a8d4663 | 524 | s->socket.flags |= SS_SPKR_ENA; |
fc301101 | 525 | status = CCSR_AUDIO_ENA; |
7feabb64 | 526 | if (!(p_dev->config_regs & PRESENT_STATUS)) |
fc301101 DB |
527 | dev_warn(&p_dev->dev, "speaker requested, but " |
528 | "PRESENT_STATUS not set!\n"); | |
529 | } | |
1ac71e5a | 530 | if (flags & CONF_ENABLE_IRQ) |
6f840afb | 531 | s->socket.io_irq = s->pcmcia_irq; |
1a8d4663 DB |
532 | else |
533 | s->socket.io_irq = 0; | |
1ac71e5a | 534 | if (flags & CONF_ENABLE_ESR) { |
7feabb64 | 535 | p_dev->config_regs |= PRESENT_EXT_STATUS; |
fc301101 DB |
536 | ext_status = ESR_REQ_ATTN_ENA; |
537 | } | |
1a8d4663 DB |
538 | s->ops->set_socket(s, &s->socket); |
539 | s->lock_count++; | |
540 | ||
1c4a77bf DB |
541 | dev_dbg(&p_dev->dev, |
542 | "enable_device: V %d, flags %x, base %x, regs %x, idx %x\n", | |
543 | p_dev->vpp, flags, p_dev->config_base, p_dev->config_regs, | |
544 | p_dev->config_index); | |
545 | ||
1a8d4663 | 546 | /* Set up CIS configuration registers */ |
7feabb64 DB |
547 | base = p_dev->config_base; |
548 | if (p_dev->config_regs & PRESENT_COPY) { | |
1a4a0460 DB |
549 | u16 tmp = 0; |
550 | dev_dbg(&p_dev->dev, "clearing CISREG_SCR\n"); | |
551 | pcmcia_write_cis_mem(s, 1, (base + CISREG_SCR)>>1, 1, &tmp); | |
552 | } | |
7feabb64 | 553 | if (p_dev->config_regs & PRESENT_PIN_REPLACE) { |
1a4a0460 DB |
554 | u16 tmp = 0; |
555 | dev_dbg(&p_dev->dev, "clearing CISREG_PRR\n"); | |
556 | pcmcia_write_cis_mem(s, 1, (base + CISREG_PRR)>>1, 1, &tmp); | |
1a8d4663 | 557 | } |
7feabb64 | 558 | if (p_dev->config_regs & PRESENT_OPTION) { |
1a8d4663 | 559 | if (s->functions == 1) { |
7feabb64 | 560 | option = p_dev->config_index & COR_CONFIG_MASK; |
1a8d4663 | 561 | } else { |
7feabb64 DB |
562 | option = p_dev->config_index & COR_MFC_CONFIG_MASK; |
563 | option |= COR_FUNC_ENA|COR_IREQ_ENA; | |
564 | if (p_dev->config_regs & PRESENT_IOBASE_0) | |
565 | option |= COR_ADDR_DECODE; | |
1a8d4663 | 566 | } |
1ac71e5a DB |
567 | if ((flags & CONF_ENABLE_IRQ) && |
568 | !(flags & CONF_ENABLE_PULSE_IRQ)) | |
7feabb64 DB |
569 | option |= COR_LEVEL_REQ; |
570 | pcmcia_write_cis_mem(s, 1, (base + CISREG_COR)>>1, 1, &option); | |
1a8d4663 DB |
571 | mdelay(40); |
572 | } | |
7feabb64 | 573 | if (p_dev->config_regs & PRESENT_STATUS) |
fc301101 DB |
574 | pcmcia_write_cis_mem(s, 1, (base + CISREG_CCSR)>>1, 1, &status); |
575 | ||
7feabb64 | 576 | if (p_dev->config_regs & PRESENT_EXT_STATUS) |
fc301101 DB |
577 | pcmcia_write_cis_mem(s, 1, (base + CISREG_ESR)>>1, 1, |
578 | &ext_status); | |
579 | ||
7feabb64 | 580 | if (p_dev->config_regs & PRESENT_IOBASE_0) { |
2ce4905e | 581 | u8 b = c->io[0].start & 0xff; |
1a8d4663 | 582 | pcmcia_write_cis_mem(s, 1, (base + CISREG_IOBASE_0)>>1, 1, &b); |
2ce4905e | 583 | b = (c->io[0].start >> 8) & 0xff; |
1a8d4663 DB |
584 | pcmcia_write_cis_mem(s, 1, (base + CISREG_IOBASE_1)>>1, 1, &b); |
585 | } | |
7feabb64 | 586 | if (p_dev->config_regs & PRESENT_IOSIZE) { |
2ce4905e | 587 | u8 b = resource_size(&c->io[0]) + resource_size(&c->io[1]) - 1; |
1a8d4663 DB |
588 | pcmcia_write_cis_mem(s, 1, (base + CISREG_IOSIZE)>>1, 1, &b); |
589 | } | |
590 | ||
591 | /* Configure I/O windows */ | |
592 | if (c->state & CONFIG_IO_REQ) { | |
593 | iomap.speed = io_speed; | |
594 | for (i = 0; i < MAX_IO_WIN; i++) | |
c7d00693 | 595 | if (s->io[i].res) { |
1a8d4663 DB |
596 | iomap.map = i; |
597 | iomap.flags = MAP_ACTIVE; | |
c7d00693 | 598 | switch (s->io[i].res->flags & IO_DATA_PATH_WIDTH) { |
1a8d4663 DB |
599 | case IO_DATA_PATH_WIDTH_16: |
600 | iomap.flags |= MAP_16BIT; break; | |
601 | case IO_DATA_PATH_WIDTH_AUTO: | |
602 | iomap.flags |= MAP_AUTOSZ; break; | |
603 | default: | |
604 | break; | |
605 | } | |
c7d00693 DB |
606 | iomap.start = s->io[i].res->start; |
607 | iomap.stop = s->io[i].res->end; | |
1a8d4663 DB |
608 | s->ops->set_io_map(s, &iomap); |
609 | s->io[i].Config++; | |
610 | } | |
611 | } | |
612 | ||
613 | c->state |= CONFIG_LOCKED; | |
e2d40963 | 614 | p_dev->_locked = 1; |
059f667d | 615 | mutex_unlock(&s->ops_mutex); |
4c89e88b | 616 | return 0; |
1ac71e5a DB |
617 | } /* pcmcia_enable_device */ |
618 | EXPORT_SYMBOL(pcmcia_enable_device); | |
1a8d4663 DB |
619 | |
620 | ||
2ce4905e DB |
621 | /** |
622 | * pcmcia_request_io() - attempt to reserve port ranges for PCMCIA devices | |
9485ee14 | 623 | * @p_dev: the associated PCMCIA device |
2ce4905e | 624 | * |
9485ee14 | 625 | * pcmcia_request_io() attempts to reserve the IO port ranges specified in |
90abdc3b | 626 | * &struct pcmcia_device @p_dev->resource[0] and @p_dev->resource[1]. The |
2ce4905e | 627 | * "start" value is the requested start of the IO port resource; "end" |
90abdc3b DB |
628 | * reflects the number of ports requested. The number of IO lines requested |
629 | * is specified in &struct pcmcia_device @p_dev->io_lines. | |
1a8d4663 | 630 | */ |
90abdc3b | 631 | int pcmcia_request_io(struct pcmcia_device *p_dev) |
1a8d4663 | 632 | { |
2bc5a9bd | 633 | struct pcmcia_socket *s = p_dev->socket; |
90abdc3b | 634 | config_t *c = p_dev->function_config; |
94a819f8 DB |
635 | int ret = -EINVAL; |
636 | ||
637 | mutex_lock(&s->ops_mutex); | |
eb838fe1 DB |
638 | dev_dbg(&p_dev->dev, "pcmcia_request_io: %pR , %pR", |
639 | &c->io[0], &c->io[1]); | |
1a8d4663 | 640 | |
6d9a299f | 641 | if (!(s->state & SOCKET_PRESENT)) { |
eb838fe1 | 642 | dev_dbg(&p_dev->dev, "pcmcia_request_io: No card present\n"); |
94a819f8 | 643 | goto out; |
6d9a299f | 644 | } |
1a8d4663 | 645 | |
6d9a299f | 646 | if (c->state & CONFIG_LOCKED) { |
eb838fe1 | 647 | dev_dbg(&p_dev->dev, "Configuration is locked\n"); |
94a819f8 | 648 | goto out; |
6d9a299f | 649 | } |
f958095e | 650 | if (c->state & CONFIG_IO_REQ) { |
eb838fe1 | 651 | dev_dbg(&p_dev->dev, "IO already configured\n"); |
94a819f8 | 652 | goto out; |
f958095e | 653 | } |
1a8d4663 | 654 | |
90abdc3b | 655 | ret = alloc_io_space(s, &c->io[0], p_dev->io_lines); |
2ce4905e | 656 | if (ret) |
94a819f8 | 657 | goto out; |
1a8d4663 | 658 | |
2ce4905e | 659 | if (c->io[1].end) { |
90abdc3b | 660 | ret = alloc_io_space(s, &c->io[1], p_dev->io_lines); |
94a819f8 | 661 | if (ret) { |
7cdffc86 DB |
662 | struct resource tmp = c->io[0]; |
663 | /* release the previously allocated resource */ | |
2ce4905e | 664 | release_io_space(s, &c->io[0]); |
7cdffc86 DB |
665 | /* but preserve the settings, for they worked... */ |
666 | c->io[0].end = resource_size(&tmp); | |
667 | c->io[0].start = tmp.start; | |
668 | c->io[0].flags = tmp.flags; | |
94a819f8 | 669 | goto out; |
1a8d4663 | 670 | } |
2ce4905e DB |
671 | } else |
672 | c->io[1].start = 0; | |
1a8d4663 | 673 | |
1a8d4663 | 674 | c->state |= CONFIG_IO_REQ; |
e2d40963 | 675 | p_dev->_io = 1; |
94a819f8 | 676 | |
eb838fe1 | 677 | dev_dbg(&p_dev->dev, "pcmcia_request_io succeeded: %pR , %pR", |
2ce4905e | 678 | &c->io[0], &c->io[1]); |
94a819f8 DB |
679 | out: |
680 | mutex_unlock(&s->ops_mutex); | |
681 | ||
682 | return ret; | |
1a8d4663 DB |
683 | } /* pcmcia_request_io */ |
684 | EXPORT_SYMBOL(pcmcia_request_io); | |
685 | ||
686 | ||
eb14120f DB |
687 | /** |
688 | * pcmcia_request_irq() - attempt to request a IRQ for a PCMCIA device | |
9485ee14 DB |
689 | * @p_dev: the associated PCMCIA device |
690 | * @handler: IRQ handler to register | |
1a8d4663 | 691 | * |
9485ee14 | 692 | * pcmcia_request_irq() is a wrapper around request_irq() which allows |
eb14120f DB |
693 | * the PCMCIA core to clean up the registration in pcmcia_disable_device(). |
694 | * Drivers are free to use request_irq() directly, but then they need to | |
9485ee14 | 695 | * call free_irq() themselfves, too. Also, only %IRQF_SHARED capable IRQ |
eb14120f | 696 | * handlers are allowed. |
1a8d4663 | 697 | */ |
eb14120f DB |
698 | int __must_check pcmcia_request_irq(struct pcmcia_device *p_dev, |
699 | irq_handler_t handler) | |
1a8d4663 | 700 | { |
eb14120f | 701 | int ret; |
1a8d4663 | 702 | |
eb14120f DB |
703 | if (!p_dev->irq) |
704 | return -EINVAL; | |
94a819f8 | 705 | |
eb14120f DB |
706 | ret = request_irq(p_dev->irq, handler, IRQF_SHARED, |
707 | p_dev->devname, p_dev->priv); | |
708 | if (!ret) | |
709 | p_dev->_irq = 1; | |
1a8d4663 | 710 | |
eb14120f DB |
711 | return ret; |
712 | } | |
713 | EXPORT_SYMBOL(pcmcia_request_irq); | |
6f0f38c4 | 714 | |
1a8d4663 | 715 | |
eb14120f DB |
716 | /** |
717 | * pcmcia_request_exclusive_irq() - attempt to request an exclusive IRQ first | |
9485ee14 DB |
718 | * @p_dev: the associated PCMCIA device |
719 | * @handler: IRQ handler to register | |
eb14120f | 720 | * |
9485ee14 | 721 | * pcmcia_request_exclusive_irq() is a wrapper around request_irq() which |
eb14120f DB |
722 | * attempts first to request an exclusive IRQ. If it fails, it also accepts |
723 | * a shared IRQ, but prints out a warning. PCMCIA drivers should allow for | |
724 | * IRQ sharing and either use request_irq directly (then they need to call | |
9485ee14 | 725 | * free_irq() themselves, too), or the pcmcia_request_irq() function. |
eb14120f DB |
726 | */ |
727 | int __must_check | |
b19a7275 DB |
728 | __pcmcia_request_exclusive_irq(struct pcmcia_device *p_dev, |
729 | irq_handler_t handler) | |
eb14120f DB |
730 | { |
731 | int ret; | |
1a8d4663 | 732 | |
eb14120f DB |
733 | if (!p_dev->irq) |
734 | return -EINVAL; | |
1a8d4663 | 735 | |
eb14120f DB |
736 | ret = request_irq(p_dev->irq, handler, 0, p_dev->devname, p_dev->priv); |
737 | if (ret) { | |
738 | ret = pcmcia_request_irq(p_dev, handler); | |
739 | dev_printk(KERN_WARNING, &p_dev->dev, "pcmcia: " | |
740 | "request for exclusive IRQ could not be fulfilled.\n"); | |
741 | dev_printk(KERN_WARNING, &p_dev->dev, "pcmcia: the driver " | |
742 | "needs updating to supported shared IRQ lines.\n"); | |
743 | } | |
744 | if (ret) | |
745 | dev_printk(KERN_INFO, &p_dev->dev, "request_irq() failed\n"); | |
746 | else | |
747 | p_dev->_irq = 1; | |
1a8d4663 | 748 | |
94a819f8 | 749 | return ret; |
eb14120f | 750 | } /* pcmcia_request_exclusive_irq */ |
b19a7275 | 751 | EXPORT_SYMBOL(__pcmcia_request_exclusive_irq); |
1a8d4663 DB |
752 | |
753 | ||
6f0f38c4 DB |
754 | #ifdef CONFIG_PCMCIA_PROBE |
755 | ||
756 | /* mask of IRQs already reserved by other cards, we should avoid using them */ | |
127c03cd | 757 | static u8 pcmcia_used_irq[32]; |
6f0f38c4 DB |
758 | |
759 | static irqreturn_t test_action(int cpl, void *dev_id) | |
760 | { | |
761 | return IRQ_NONE; | |
762 | } | |
763 | ||
764 | /** | |
765 | * pcmcia_setup_isa_irq() - determine whether an ISA IRQ can be used | |
766 | * @p_dev - the associated PCMCIA device | |
767 | * | |
768 | * locking note: must be called with ops_mutex locked. | |
769 | */ | |
770 | static int pcmcia_setup_isa_irq(struct pcmcia_device *p_dev, int type) | |
771 | { | |
772 | struct pcmcia_socket *s = p_dev->socket; | |
773 | unsigned int try, irq; | |
774 | u32 mask = s->irq_mask; | |
775 | int ret = -ENODEV; | |
776 | ||
777 | for (try = 0; try < 64; try++) { | |
778 | irq = try % 32; | |
779 | ||
127c03cd DB |
780 | if (irq > NR_IRQS) |
781 | continue; | |
782 | ||
6f0f38c4 DB |
783 | /* marked as available by driver, not blocked by userspace? */ |
784 | if (!((mask >> irq) & 1)) | |
785 | continue; | |
786 | ||
787 | /* avoid an IRQ which is already used by another PCMCIA card */ | |
788 | if ((try < 32) && pcmcia_used_irq[irq]) | |
789 | continue; | |
790 | ||
791 | /* register the correct driver, if possible, to check whether | |
792 | * registering a dummy handle works, i.e. if the IRQ isn't | |
793 | * marked as used by the kernel resource management core */ | |
794 | ret = request_irq(irq, test_action, type, p_dev->devname, | |
795 | p_dev); | |
796 | if (!ret) { | |
797 | free_irq(irq, p_dev); | |
eb14120f | 798 | p_dev->irq = s->pcmcia_irq = irq; |
6f0f38c4 DB |
799 | pcmcia_used_irq[irq]++; |
800 | break; | |
801 | } | |
802 | } | |
803 | ||
804 | return ret; | |
805 | } | |
806 | ||
807 | void pcmcia_cleanup_irq(struct pcmcia_socket *s) | |
808 | { | |
6f840afb DB |
809 | pcmcia_used_irq[s->pcmcia_irq]--; |
810 | s->pcmcia_irq = 0; | |
6f0f38c4 DB |
811 | } |
812 | ||
813 | #else /* CONFIG_PCMCIA_PROBE */ | |
814 | ||
815 | static int pcmcia_setup_isa_irq(struct pcmcia_device *p_dev, int type) | |
816 | { | |
817 | return -EINVAL; | |
818 | } | |
819 | ||
820 | void pcmcia_cleanup_irq(struct pcmcia_socket *s) | |
821 | { | |
6f840afb | 822 | s->pcmcia_irq = 0; |
6f0f38c4 DB |
823 | return; |
824 | } | |
825 | ||
826 | #endif /* CONFIG_PCMCIA_PROBE */ | |
827 | ||
828 | ||
829 | /** | |
830 | * pcmcia_setup_irq() - determine IRQ to be used for device | |
831 | * @p_dev - the associated PCMCIA device | |
832 | * | |
833 | * locking note: must be called with ops_mutex locked. | |
834 | */ | |
835 | int pcmcia_setup_irq(struct pcmcia_device *p_dev) | |
836 | { | |
837 | struct pcmcia_socket *s = p_dev->socket; | |
838 | ||
eb14120f | 839 | if (p_dev->irq) |
6f0f38c4 DB |
840 | return 0; |
841 | ||
842 | /* already assigned? */ | |
6f840afb | 843 | if (s->pcmcia_irq) { |
eb14120f | 844 | p_dev->irq = s->pcmcia_irq; |
6f0f38c4 DB |
845 | return 0; |
846 | } | |
847 | ||
848 | /* prefer an exclusive ISA irq */ | |
849 | if (!pcmcia_setup_isa_irq(p_dev, 0)) | |
850 | return 0; | |
851 | ||
852 | /* but accept a shared ISA irq */ | |
853 | if (!pcmcia_setup_isa_irq(p_dev, IRQF_SHARED)) | |
854 | return 0; | |
855 | ||
856 | /* but use the PCI irq otherwise */ | |
857 | if (s->pci_irq) { | |
eb14120f | 858 | p_dev->irq = s->pcmcia_irq = s->pci_irq; |
6f0f38c4 DB |
859 | return 0; |
860 | } | |
861 | ||
862 | return -EINVAL; | |
863 | } | |
864 | ||
865 | ||
cdb13808 DB |
866 | /** |
867 | * pcmcia_request_window() - attempt to reserve iomem for PCMCIA devices | |
9485ee14 DB |
868 | * @p_dev: the associated PCMCIA device |
869 | * @res: &struct resource pointing to p_dev->resource[2..5] | |
870 | * @speed: access speed | |
1a8d4663 | 871 | * |
cdb13808 | 872 | * pcmcia_request_window() attepts to reserve an iomem ranges specified in |
9485ee14 DB |
873 | * &struct resource @res pointing to one of the entries in |
874 | * &struct pcmcia_device @p_dev->resource[2..5]. The "start" value is the | |
cdb13808 DB |
875 | * requested start of the IO mem resource; "end" reflects the size |
876 | * requested. | |
1a8d4663 | 877 | */ |
cdb13808 DB |
878 | int pcmcia_request_window(struct pcmcia_device *p_dev, struct resource *res, |
879 | unsigned int speed) | |
1a8d4663 | 880 | { |
6838b03f | 881 | struct pcmcia_socket *s = p_dev->socket; |
82f88e36 | 882 | pccard_mem_map *win; |
1a8d4663 DB |
883 | u_long align; |
884 | int w; | |
885 | ||
1c4a77bf DB |
886 | dev_dbg(&p_dev->dev, "request_window %pR %d\n", res, speed); |
887 | ||
6d9a299f | 888 | if (!(s->state & SOCKET_PRESENT)) { |
eb838fe1 | 889 | dev_dbg(&p_dev->dev, "No card present\n"); |
3939c1ef | 890 | return -ENODEV; |
6d9a299f | 891 | } |
1a8d4663 DB |
892 | |
893 | /* Window size defaults to smallest available */ | |
cdb13808 DB |
894 | if (res->end == 0) |
895 | res->end = s->map_size; | |
896 | align = (s->features & SS_CAP_MEM_ALIGN) ? res->end : s->map_size; | |
897 | if (res->end & (s->map_size-1)) { | |
eb838fe1 | 898 | dev_dbg(&p_dev->dev, "invalid map size\n"); |
69ba4433 DB |
899 | return -EINVAL; |
900 | } | |
cdb13808 DB |
901 | if ((res->start && (s->features & SS_CAP_STATIC_MAP)) || |
902 | (res->start & (align-1))) { | |
eb838fe1 | 903 | dev_dbg(&p_dev->dev, "invalid base address\n"); |
69ba4433 DB |
904 | return -EINVAL; |
905 | } | |
cdb13808 | 906 | if (res->start) |
1a8d4663 DB |
907 | align = 0; |
908 | ||
909 | /* Allocate system memory window */ | |
0ca724d3 | 910 | mutex_lock(&s->ops_mutex); |
1a8d4663 | 911 | for (w = 0; w < MAX_WIN; w++) |
9fea84f4 DB |
912 | if (!(s->state & SOCKET_WIN_REQ(w))) |
913 | break; | |
f958095e | 914 | if (w == MAX_WIN) { |
eb838fe1 | 915 | dev_dbg(&p_dev->dev, "all windows are used already\n"); |
0ca724d3 | 916 | mutex_unlock(&s->ops_mutex); |
f958095e DB |
917 | return -EINVAL; |
918 | } | |
1a8d4663 DB |
919 | |
920 | win = &s->win[w]; | |
1a8d4663 DB |
921 | |
922 | if (!(s->features & SS_CAP_STATIC_MAP)) { | |
cdb13808 | 923 | win->res = pcmcia_find_mem_region(res->start, res->end, align, |
0ca724d3 | 924 | 0, s); |
82f88e36 | 925 | if (!win->res) { |
eb838fe1 | 926 | dev_dbg(&p_dev->dev, "allocating mem region failed\n"); |
6b8e087b | 927 | mutex_unlock(&s->ops_mutex); |
f958095e DB |
928 | return -EINVAL; |
929 | } | |
1a8d4663 | 930 | } |
6838b03f | 931 | p_dev->_win |= CLIENT_WIN_REQ(w); |
1a8d4663 DB |
932 | |
933 | /* Configure the socket controller */ | |
82f88e36 | 934 | win->map = w+1; |
cdb13808 DB |
935 | win->flags = res->flags & WIN_FLAGS_MAP; |
936 | win->speed = speed; | |
82f88e36 | 937 | win->card_start = 0; |
6b8e087b | 938 | |
82f88e36 | 939 | if (s->ops->set_mem_map(s, win) != 0) { |
eb838fe1 | 940 | dev_dbg(&p_dev->dev, "failed to set memory mapping\n"); |
6b8e087b | 941 | mutex_unlock(&s->ops_mutex); |
926c5402 DB |
942 | return -EIO; |
943 | } | |
1a8d4663 DB |
944 | s->state |= SOCKET_WIN_REQ(w); |
945 | ||
946 | /* Return window handle */ | |
9fea84f4 | 947 | if (s->features & SS_CAP_STATIC_MAP) |
cdb13808 | 948 | res->start = win->static_start; |
9fea84f4 | 949 | else |
cdb13808 | 950 | res->start = win->res->start; |
9fea84f4 | 951 | |
0ca724d3 | 952 | /* convert to new-style resources */ |
cdb13808 DB |
953 | res->end += res->start - 1; |
954 | res->flags &= ~WIN_FLAGS_REQ; | |
955 | res->flags |= (win->map << 2) | IORESOURCE_MEM; | |
ad0c7be2 DB |
956 | res->parent = win->res; |
957 | if (win->res) | |
958 | request_resource(&iomem_resource, res); | |
959 | ||
eb838fe1 | 960 | dev_dbg(&p_dev->dev, "request_window results in %pR\n", res); |
0ca724d3 | 961 | |
6b8e087b | 962 | mutex_unlock(&s->ops_mutex); |
1a8d4663 | 963 | |
4c89e88b | 964 | return 0; |
1a8d4663 DB |
965 | } /* pcmcia_request_window */ |
966 | EXPORT_SYMBOL(pcmcia_request_window); | |
5f2a71fc | 967 | |
9485ee14 DB |
968 | |
969 | /** | |
970 | * pcmcia_disable_device() - disable and clean up a PCMCIA device | |
971 | * @p_dev: the associated PCMCIA device | |
972 | * | |
973 | * pcmcia_disable_device() is the driver-callable counterpart to | |
974 | * pcmcia_enable_device(): If a PCMCIA device is no longer used, | |
975 | * drivers are expected to clean up and disable the device by calling | |
976 | * this function. Any I/O ranges (iomem and ioports) will be released, | |
977 | * the Vpp voltage will be set to 0, and IRQs will no longer be | |
978 | * generated -- at least if there is no other card function (of | |
979 | * multifunction devices) being used. | |
980 | */ | |
9fea84f4 DB |
981 | void pcmcia_disable_device(struct pcmcia_device *p_dev) |
982 | { | |
0ca724d3 | 983 | int i; |
1c4a77bf DB |
984 | |
985 | dev_dbg(&p_dev->dev, "disabling device\n"); | |
986 | ||
0ca724d3 DB |
987 | for (i = 0; i < MAX_WIN; i++) { |
988 | struct resource *res = p_dev->resource[MAX_IO_WIN + i]; | |
989 | if (res->flags & WIN_FLAGS_REQ) | |
990 | pcmcia_release_window(p_dev, res); | |
991 | } | |
992 | ||
5f2a71fc | 993 | pcmcia_release_configuration(p_dev); |
2ce4905e | 994 | pcmcia_release_io(p_dev); |
418c5278 | 995 | if (p_dev->_irq) { |
eb14120f | 996 | free_irq(p_dev->irq, p_dev->priv); |
418c5278 PM |
997 | p_dev->_irq = 0; |
998 | } | |
5f2a71fc DB |
999 | } |
1000 | EXPORT_SYMBOL(pcmcia_disable_device); |