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Commit | Line | Data |
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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 | |
9 | * Copyright (C) 2004-2005 Dominik Brodowski | |
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> |
1a8d4663 | 24 | |
1a8d4663 DB |
25 | #include <pcmcia/cs_types.h> |
26 | #include <pcmcia/ss.h> | |
27 | #include <pcmcia/cs.h> | |
1a8d4663 DB |
28 | #include <pcmcia/cistpl.h> |
29 | #include <pcmcia/cisreg.h> | |
30 | #include <pcmcia/ds.h> | |
31 | ||
32 | #include "cs_internal.h" | |
1a8d4663 DB |
33 | |
34 | ||
1a8d4663 | 35 | /* Access speed for IO windows */ |
9fea84f4 | 36 | static int io_speed; |
1a8d4663 DB |
37 | module_param(io_speed, int, 0444); |
38 | ||
39 | ||
40 | #ifdef CONFIG_PCMCIA_PROBE | |
531e5ca6 | 41 | #include <asm/irq.h> |
1a8d4663 DB |
42 | /* mask of IRQs already reserved by other cards, we should avoid using them */ |
43 | static u8 pcmcia_used_irq[NR_IRQS]; | |
44 | #endif | |
45 | ||
f9c316f4 DB |
46 | static int pcmcia_adjust_io_region(struct resource *res, unsigned long start, |
47 | unsigned long end, struct pcmcia_socket *s) | |
48 | { | |
49 | if (s->resource_ops->adjust_io_region) | |
50 | return s->resource_ops->adjust_io_region(res, start, end, s); | |
51 | return -ENOMEM; | |
52 | } | |
53 | ||
54 | static struct resource *pcmcia_find_io_region(unsigned long base, int num, | |
55 | unsigned long align, | |
56 | struct pcmcia_socket *s) | |
57 | { | |
58 | if (s->resource_ops->find_io) | |
59 | return s->resource_ops->find_io(base, num, align, s); | |
60 | return NULL; | |
61 | } | |
62 | ||
a3ac9af5 DB |
63 | int pcmcia_validate_mem(struct pcmcia_socket *s) |
64 | { | |
65 | if (s->resource_ops->validate_mem) | |
66 | return s->resource_ops->validate_mem(s); | |
67 | /* if there is no callback, we can assume that everything is OK */ | |
68 | return 0; | |
69 | } | |
70 | ||
71 | struct resource *pcmcia_find_mem_region(u_long base, u_long num, u_long align, | |
72 | int low, struct pcmcia_socket *s) | |
73 | { | |
74 | if (s->resource_ops->find_mem) | |
75 | return s->resource_ops->find_mem(base, num, align, low, s); | |
76 | return NULL; | |
77 | } | |
78 | ||
1a8d4663 | 79 | |
1a8d4663 DB |
80 | /** alloc_io_space |
81 | * | |
82 | * Special stuff for managing IO windows, because they are scarce | |
83 | */ | |
84 | ||
ecb8a847 OJ |
85 | static int alloc_io_space(struct pcmcia_socket *s, u_int attr, |
86 | unsigned int *base, unsigned int num, u_int lines) | |
1a8d4663 DB |
87 | { |
88 | int i; | |
ecb8a847 | 89 | unsigned int try, align; |
1a8d4663 DB |
90 | |
91 | align = (*base) ? (lines ? 1<<lines : 0) : 1; | |
92 | if (align && (align < num)) { | |
93 | if (*base) { | |
d50dbec3 | 94 | dev_dbg(&s->dev, "odd IO request: num %#x align %#x\n", |
1a8d4663 DB |
95 | num, align); |
96 | align = 0; | |
97 | } else | |
9fea84f4 DB |
98 | while (align && (align < num)) |
99 | align <<= 1; | |
1a8d4663 DB |
100 | } |
101 | if (*base & ~(align-1)) { | |
d50dbec3 | 102 | dev_dbg(&s->dev, "odd IO request: base %#x align %#x\n", |
1a8d4663 DB |
103 | *base, align); |
104 | align = 0; | |
105 | } | |
106 | if ((s->features & SS_CAP_STATIC_MAP) && s->io_offset) { | |
107 | *base = s->io_offset | (*base & 0x0fff); | |
108 | return 0; | |
109 | } | |
110 | /* Check for an already-allocated window that must conflict with | |
111 | * what was asked for. It is a hack because it does not catch all | |
112 | * potential conflicts, just the most obvious ones. | |
113 | */ | |
114 | for (i = 0; i < MAX_IO_WIN; i++) | |
4708b5fa | 115 | if ((s->io[i].res) && *base && |
c7d00693 | 116 | ((s->io[i].res->start & (align-1)) == *base)) |
1a8d4663 DB |
117 | return 1; |
118 | for (i = 0; i < MAX_IO_WIN; i++) { | |
c7d00693 | 119 | if (!s->io[i].res) { |
1a8d4663 DB |
120 | s->io[i].res = pcmcia_find_io_region(*base, num, align, s); |
121 | if (s->io[i].res) { | |
c7d00693 DB |
122 | *base = s->io[i].res->start; |
123 | s->io[i].res->flags = (s->io[i].res->flags & ~IORESOURCE_BITS) | (attr & IORESOURCE_BITS); | |
124 | s->io[i].InUse = num; | |
1a8d4663 DB |
125 | break; |
126 | } else | |
127 | return 1; | |
c7d00693 | 128 | } else if ((s->io[i].res->flags & IORESOURCE_BITS) != (attr & IORESOURCE_BITS)) |
1a8d4663 DB |
129 | continue; |
130 | /* Try to extend top of window */ | |
c7d00693 | 131 | try = s->io[i].res->end + 1; |
1a8d4663 DB |
132 | if ((*base == 0) || (*base == try)) |
133 | if (pcmcia_adjust_io_region(s->io[i].res, s->io[i].res->start, | |
134 | s->io[i].res->end + num, s) == 0) { | |
135 | *base = try; | |
1a8d4663 DB |
136 | s->io[i].InUse += num; |
137 | break; | |
138 | } | |
139 | /* Try to extend bottom of window */ | |
c7d00693 | 140 | try = s->io[i].res->start - num; |
1a8d4663 DB |
141 | if ((*base == 0) || (*base == try)) |
142 | if (pcmcia_adjust_io_region(s->io[i].res, s->io[i].res->start - num, | |
143 | s->io[i].res->end, s) == 0) { | |
c7d00693 | 144 | *base = try; |
1a8d4663 DB |
145 | s->io[i].InUse += num; |
146 | break; | |
147 | } | |
148 | } | |
149 | return (i == MAX_IO_WIN); | |
150 | } /* alloc_io_space */ | |
151 | ||
152 | ||
ecb8a847 OJ |
153 | static void release_io_space(struct pcmcia_socket *s, unsigned int base, |
154 | unsigned int num) | |
1a8d4663 DB |
155 | { |
156 | int i; | |
157 | ||
158 | for (i = 0; i < MAX_IO_WIN; i++) { | |
c7d00693 DB |
159 | if (!s->io[i].res) |
160 | continue; | |
161 | if ((s->io[i].res->start <= base) && | |
162 | (s->io[i].res->end >= base+num-1)) { | |
1a8d4663 DB |
163 | s->io[i].InUse -= num; |
164 | /* Free the window if no one else is using it */ | |
165 | if (s->io[i].InUse == 0) { | |
1a8d4663 DB |
166 | release_resource(s->io[i].res); |
167 | kfree(s->io[i].res); | |
168 | s->io[i].res = NULL; | |
169 | } | |
170 | } | |
171 | } | |
172 | } /* release_io_space */ | |
173 | ||
174 | ||
175 | /** pccard_access_configuration_register | |
176 | * | |
177 | * Access_configuration_register() reads and writes configuration | |
178 | * registers in attribute memory. Memory window 0 is reserved for | |
179 | * this and the tuple reading services. | |
180 | */ | |
181 | ||
855cdf13 | 182 | int pcmcia_access_configuration_register(struct pcmcia_device *p_dev, |
1a8d4663 DB |
183 | conf_reg_t *reg) |
184 | { | |
855cdf13 | 185 | struct pcmcia_socket *s; |
1a8d4663 DB |
186 | config_t *c; |
187 | int addr; | |
188 | u_char val; | |
189 | ||
855cdf13 | 190 | if (!p_dev || !p_dev->function_config) |
3939c1ef | 191 | return -EINVAL; |
1a8d4663 | 192 | |
855cdf13 | 193 | s = p_dev->socket; |
94a819f8 DB |
194 | |
195 | mutex_lock(&s->ops_mutex); | |
855cdf13 | 196 | c = p_dev->function_config; |
1a8d4663 | 197 | |
6d9a299f DB |
198 | if (!(c->state & CONFIG_LOCKED)) { |
199 | dev_dbg(&s->dev, "Configuration isnt't locked\n"); | |
94a819f8 | 200 | mutex_unlock(&s->ops_mutex); |
943f70f1 | 201 | return -EACCES; |
6d9a299f | 202 | } |
1a8d4663 DB |
203 | |
204 | addr = (c->ConfigBase + reg->Offset) >> 1; | |
94a819f8 | 205 | mutex_unlock(&s->ops_mutex); |
1a8d4663 DB |
206 | |
207 | switch (reg->Action) { | |
208 | case CS_READ: | |
209 | pcmcia_read_cis_mem(s, 1, addr, 1, &val); | |
210 | reg->Value = val; | |
211 | break; | |
212 | case CS_WRITE: | |
213 | val = reg->Value; | |
214 | pcmcia_write_cis_mem(s, 1, addr, 1, &val); | |
215 | break; | |
216 | default: | |
6d9a299f | 217 | dev_dbg(&s->dev, "Invalid conf register request\n"); |
926c5402 | 218 | return -EINVAL; |
1a8d4663 DB |
219 | break; |
220 | } | |
4c89e88b | 221 | return 0; |
855cdf13 | 222 | } /* pcmcia_access_configuration_register */ |
3448139b DB |
223 | EXPORT_SYMBOL(pcmcia_access_configuration_register); |
224 | ||
1a8d4663 | 225 | |
868575d1 MD |
226 | int pcmcia_map_mem_page(struct pcmcia_device *p_dev, window_handle_t wh, |
227 | memreq_t *req) | |
1a8d4663 | 228 | { |
0bdf9b3d | 229 | struct pcmcia_socket *s = p_dev->socket; |
6b8e087b | 230 | int ret; |
868575d1 | 231 | |
0bdf9b3d MD |
232 | wh--; |
233 | if (wh >= MAX_WIN) | |
ffb8da20 | 234 | return -EINVAL; |
610e2374 | 235 | if (req->Page != 0) { |
d50dbec3 | 236 | dev_dbg(&s->dev, "failure: requested page is zero\n"); |
610e2374 DB |
237 | return -EINVAL; |
238 | } | |
6b8e087b | 239 | mutex_lock(&s->ops_mutex); |
82f88e36 | 240 | s->win[wh].card_start = req->CardOffset; |
6b8e087b DB |
241 | ret = s->ops->set_mem_map(s, &s->win[wh]); |
242 | if (ret) | |
243 | dev_warn(&s->dev, "failed to set_mem_map\n"); | |
244 | mutex_unlock(&s->ops_mutex); | |
245 | return ret; | |
1a8d4663 DB |
246 | } /* pcmcia_map_mem_page */ |
247 | EXPORT_SYMBOL(pcmcia_map_mem_page); | |
248 | ||
249 | ||
250 | /** pcmcia_modify_configuration | |
251 | * | |
252 | * Modify a locked socket configuration | |
253 | */ | |
2bc5a9bd | 254 | int pcmcia_modify_configuration(struct pcmcia_device *p_dev, |
1a8d4663 DB |
255 | modconf_t *mod) |
256 | { | |
257 | struct pcmcia_socket *s; | |
258 | config_t *c; | |
4e06e240 | 259 | int ret; |
1a8d4663 | 260 | |
2bc5a9bd | 261 | s = p_dev->socket; |
94a819f8 DB |
262 | |
263 | mutex_lock(&s->ops_mutex); | |
dbb22f0d DB |
264 | c = p_dev->function_config; |
265 | ||
6d9a299f DB |
266 | if (!(s->state & SOCKET_PRESENT)) { |
267 | dev_dbg(&s->dev, "No card present\n"); | |
4e06e240 JS |
268 | ret = -ENODEV; |
269 | goto unlock; | |
6d9a299f DB |
270 | } |
271 | if (!(c->state & CONFIG_LOCKED)) { | |
272 | dev_dbg(&s->dev, "Configuration isnt't locked\n"); | |
4e06e240 JS |
273 | ret = -EACCES; |
274 | goto unlock; | |
6d9a299f | 275 | } |
1a8d4663 DB |
276 | |
277 | if (mod->Attributes & CONF_IRQ_CHANGE_VALID) { | |
278 | if (mod->Attributes & CONF_ENABLE_IRQ) { | |
279 | c->Attributes |= CONF_ENABLE_IRQ; | |
280 | s->socket.io_irq = s->irq.AssignedIRQ; | |
281 | } else { | |
282 | c->Attributes &= ~CONF_ENABLE_IRQ; | |
283 | s->socket.io_irq = 0; | |
284 | } | |
285 | s->ops->set_socket(s, &s->socket); | |
286 | } | |
287 | ||
d8b0a49d | 288 | if (mod->Attributes & CONF_VCC_CHANGE_VALID) { |
d50dbec3 | 289 | dev_dbg(&s->dev, "changing Vcc is not allowed at this time\n"); |
4e06e240 JS |
290 | ret = -EINVAL; |
291 | goto unlock; | |
d8b0a49d | 292 | } |
1a8d4663 DB |
293 | |
294 | /* We only allow changing Vpp1 and Vpp2 to the same value */ | |
295 | if ((mod->Attributes & CONF_VPP1_CHANGE_VALID) && | |
296 | (mod->Attributes & CONF_VPP2_CHANGE_VALID)) { | |
60df3de8 | 297 | if (mod->Vpp1 != mod->Vpp2) { |
d50dbec3 | 298 | dev_dbg(&s->dev, "Vpp1 and Vpp2 must be the same\n"); |
4e06e240 JS |
299 | ret = -EINVAL; |
300 | goto unlock; | |
60df3de8 | 301 | } |
71ed90d8 | 302 | s->socket.Vpp = mod->Vpp1; |
d8b0a49d DB |
303 | if (s->ops->set_socket(s, &s->socket)) { |
304 | dev_printk(KERN_WARNING, &s->dev, | |
305 | "Unable to set VPP\n"); | |
4e06e240 JS |
306 | ret = -EIO; |
307 | goto unlock; | |
d8b0a49d | 308 | } |
1a8d4663 | 309 | } else if ((mod->Attributes & CONF_VPP1_CHANGE_VALID) || |
d8b0a49d | 310 | (mod->Attributes & CONF_VPP2_CHANGE_VALID)) { |
d50dbec3 | 311 | dev_dbg(&s->dev, "changing Vcc is not allowed at this time\n"); |
4e06e240 JS |
312 | ret = -EINVAL; |
313 | goto unlock; | |
d8b0a49d | 314 | } |
1a8d4663 | 315 | |
4bbed523 DB |
316 | if (mod->Attributes & CONF_IO_CHANGE_WIDTH) { |
317 | pccard_io_map io_off = { 0, 0, 0, 0, 1 }; | |
318 | pccard_io_map io_on; | |
319 | int i; | |
320 | ||
321 | io_on.speed = io_speed; | |
322 | for (i = 0; i < MAX_IO_WIN; i++) { | |
323 | if (!s->io[i].res) | |
324 | continue; | |
325 | io_off.map = i; | |
326 | io_on.map = i; | |
327 | ||
328 | io_on.flags = MAP_ACTIVE | IO_DATA_PATH_WIDTH_8; | |
329 | io_on.start = s->io[i].res->start; | |
330 | io_on.stop = s->io[i].res->end; | |
331 | ||
332 | s->ops->set_io_map(s, &io_off); | |
333 | mdelay(40); | |
334 | s->ops->set_io_map(s, &io_on); | |
335 | } | |
336 | } | |
4e06e240 JS |
337 | ret = 0; |
338 | unlock: | |
94a819f8 | 339 | mutex_unlock(&s->ops_mutex); |
4bbed523 | 340 | |
4e06e240 | 341 | return ret; |
1a8d4663 DB |
342 | } /* modify_configuration */ |
343 | EXPORT_SYMBOL(pcmcia_modify_configuration); | |
344 | ||
345 | ||
2bc5a9bd | 346 | int pcmcia_release_configuration(struct pcmcia_device *p_dev) |
1a8d4663 DB |
347 | { |
348 | pccard_io_map io = { 0, 0, 0, 0, 1 }; | |
2bc5a9bd | 349 | struct pcmcia_socket *s = p_dev->socket; |
94a819f8 | 350 | config_t *c; |
1a8d4663 DB |
351 | int i; |
352 | ||
9e86749c | 353 | mutex_lock(&s->ops_mutex); |
94a819f8 | 354 | c = p_dev->function_config; |
e2d40963 DB |
355 | if (p_dev->_locked) { |
356 | p_dev->_locked = 0; | |
1a8d4663 DB |
357 | if (--(s->lock_count) == 0) { |
358 | s->socket.flags = SS_OUTPUT_ENA; /* Is this correct? */ | |
359 | s->socket.Vpp = 0; | |
360 | s->socket.io_irq = 0; | |
361 | s->ops->set_socket(s, &s->socket); | |
362 | } | |
5f2a71fc DB |
363 | } |
364 | if (c->state & CONFIG_LOCKED) { | |
365 | c->state &= ~CONFIG_LOCKED; | |
1a8d4663 DB |
366 | if (c->state & CONFIG_IO_REQ) |
367 | for (i = 0; i < MAX_IO_WIN; i++) { | |
c7d00693 | 368 | if (!s->io[i].res) |
1a8d4663 DB |
369 | continue; |
370 | s->io[i].Config--; | |
371 | if (s->io[i].Config != 0) | |
372 | continue; | |
373 | io.map = i; | |
374 | s->ops->set_io_map(s, &io); | |
375 | } | |
1a8d4663 | 376 | } |
9e86749c | 377 | mutex_unlock(&s->ops_mutex); |
1a8d4663 | 378 | |
4c89e88b | 379 | return 0; |
1a8d4663 | 380 | } /* pcmcia_release_configuration */ |
1a8d4663 DB |
381 | |
382 | ||
383 | /** pcmcia_release_io | |
384 | * | |
385 | * Release_io() releases the I/O ranges allocated by a client. This | |
386 | * may be invoked some time after a card ejection has already dumped | |
387 | * the actual socket configuration, so if the client is "stale", we | |
388 | * don't bother checking the port ranges against the current socket | |
389 | * values. | |
390 | */ | |
b4c88400 | 391 | static int pcmcia_release_io(struct pcmcia_device *p_dev, io_req_t *req) |
1a8d4663 | 392 | { |
2bc5a9bd | 393 | struct pcmcia_socket *s = p_dev->socket; |
94a819f8 DB |
394 | int ret = -EINVAL; |
395 | config_t *c; | |
396 | ||
397 | mutex_lock(&s->ops_mutex); | |
398 | c = p_dev->function_config; | |
1a8d4663 | 399 | |
9fea84f4 | 400 | if (!p_dev->_io) |
94a819f8 | 401 | goto out; |
5f2a71fc | 402 | |
e2d40963 | 403 | p_dev->_io = 0; |
1a8d4663 | 404 | |
5f2a71fc DB |
405 | if ((c->io.BasePort1 != req->BasePort1) || |
406 | (c->io.NumPorts1 != req->NumPorts1) || | |
407 | (c->io.BasePort2 != req->BasePort2) || | |
408 | (c->io.NumPorts2 != req->NumPorts2)) | |
94a819f8 | 409 | goto out; |
5f2a71fc DB |
410 | |
411 | c->state &= ~CONFIG_IO_REQ; | |
1a8d4663 DB |
412 | |
413 | release_io_space(s, req->BasePort1, req->NumPorts1); | |
414 | if (req->NumPorts2) | |
415 | release_io_space(s, req->BasePort2, req->NumPorts2); | |
416 | ||
94a819f8 DB |
417 | out: |
418 | mutex_unlock(&s->ops_mutex); | |
419 | ||
420 | return ret; | |
1a8d4663 | 421 | } /* pcmcia_release_io */ |
1a8d4663 DB |
422 | |
423 | ||
b4c88400 | 424 | static int pcmcia_release_irq(struct pcmcia_device *p_dev, irq_req_t *req) |
1a8d4663 | 425 | { |
2bc5a9bd | 426 | struct pcmcia_socket *s = p_dev->socket; |
94a819f8 DB |
427 | config_t *c; |
428 | int ret = -EINVAL; | |
429 | ||
430 | mutex_lock(&s->ops_mutex); | |
431 | ||
432 | c = p_dev->function_config; | |
5f2a71fc | 433 | |
e2d40963 | 434 | if (!p_dev->_irq) |
94a819f8 DB |
435 | goto out; |
436 | ||
e2d40963 | 437 | p_dev->_irq = 0; |
1a8d4663 | 438 | |
5f2a71fc | 439 | if (c->state & CONFIG_LOCKED) |
94a819f8 DB |
440 | goto out; |
441 | ||
610e2374 | 442 | if (c->irq.Attributes != req->Attributes) { |
d50dbec3 | 443 | dev_dbg(&s->dev, "IRQ attributes must match assigned ones\n"); |
94a819f8 | 444 | goto out; |
610e2374 | 445 | } |
69ba4433 | 446 | if (s->irq.AssignedIRQ != req->AssignedIRQ) { |
d50dbec3 | 447 | dev_dbg(&s->dev, "IRQ must match assigned one\n"); |
94a819f8 | 448 | goto out; |
69ba4433 | 449 | } |
5f2a71fc DB |
450 | if (--s->irq.Config == 0) { |
451 | c->state &= ~CONFIG_IRQ_REQ; | |
452 | s->irq.AssignedIRQ = 0; | |
1a8d4663 DB |
453 | } |
454 | ||
9fea84f4 | 455 | if (req->Handler) |
5fa9167a | 456 | free_irq(req->AssignedIRQ, p_dev->priv); |
1a8d4663 DB |
457 | |
458 | #ifdef CONFIG_PCMCIA_PROBE | |
459 | pcmcia_used_irq[req->AssignedIRQ]--; | |
460 | #endif | |
94a819f8 DB |
461 | ret = 0; |
462 | ||
463 | out: | |
64d8d46f | 464 | mutex_unlock(&s->ops_mutex); |
1a8d4663 | 465 | |
94a819f8 | 466 | return ret; |
1a8d4663 | 467 | } /* pcmcia_release_irq */ |
1a8d4663 DB |
468 | |
469 | ||
f5560da5 | 470 | int pcmcia_release_window(struct pcmcia_device *p_dev, window_handle_t wh) |
1a8d4663 | 471 | { |
0bdf9b3d | 472 | struct pcmcia_socket *s = p_dev->socket; |
82f88e36 | 473 | pccard_mem_map *win; |
1a8d4663 | 474 | |
0bdf9b3d MD |
475 | wh--; |
476 | if (wh >= MAX_WIN) | |
ffb8da20 | 477 | return -EINVAL; |
0bdf9b3d | 478 | |
6b8e087b | 479 | mutex_lock(&s->ops_mutex); |
0bdf9b3d MD |
480 | win = &s->win[wh]; |
481 | ||
482 | if (!(p_dev->_win & CLIENT_WIN_REQ(wh))) { | |
6d9a299f | 483 | dev_dbg(&s->dev, "not releasing unknown window\n"); |
6b8e087b | 484 | mutex_unlock(&s->ops_mutex); |
ffb8da20 | 485 | return -EINVAL; |
6d9a299f | 486 | } |
1a8d4663 DB |
487 | |
488 | /* Shut down memory window */ | |
82f88e36 DB |
489 | win->flags &= ~MAP_ACTIVE; |
490 | s->ops->set_mem_map(s, win); | |
0bdf9b3d | 491 | s->state &= ~SOCKET_WIN_REQ(wh); |
1a8d4663 DB |
492 | |
493 | /* Release system memory */ | |
82f88e36 DB |
494 | if (win->res) { |
495 | release_resource(win->res); | |
496 | kfree(win->res); | |
497 | win->res = NULL; | |
1a8d4663 | 498 | } |
0bdf9b3d | 499 | p_dev->_win &= ~CLIENT_WIN_REQ(wh); |
6b8e087b | 500 | mutex_unlock(&s->ops_mutex); |
1a8d4663 | 501 | |
4c89e88b | 502 | return 0; |
1a8d4663 DB |
503 | } /* pcmcia_release_window */ |
504 | EXPORT_SYMBOL(pcmcia_release_window); | |
505 | ||
506 | ||
2bc5a9bd | 507 | int pcmcia_request_configuration(struct pcmcia_device *p_dev, |
1a8d4663 DB |
508 | config_req_t *req) |
509 | { | |
510 | int i; | |
511 | u_int base; | |
2bc5a9bd | 512 | struct pcmcia_socket *s = p_dev->socket; |
1a8d4663 DB |
513 | config_t *c; |
514 | pccard_io_map iomap; | |
515 | ||
1a8d4663 | 516 | if (!(s->state & SOCKET_PRESENT)) |
d598de02 | 517 | return -ENODEV; |
1a8d4663 | 518 | |
de6405e9 | 519 | if (req->IntType & INT_CARDBUS) { |
d50dbec3 | 520 | dev_dbg(&s->dev, "IntType may not be INT_CARDBUS\n"); |
de6405e9 DB |
521 | return -EINVAL; |
522 | } | |
94a819f8 DB |
523 | |
524 | mutex_lock(&s->ops_mutex); | |
dbb22f0d | 525 | c = p_dev->function_config; |
6d9a299f | 526 | if (c->state & CONFIG_LOCKED) { |
94a819f8 | 527 | mutex_unlock(&s->ops_mutex); |
6d9a299f | 528 | dev_dbg(&s->dev, "Configuration is locked\n"); |
943f70f1 | 529 | return -EACCES; |
6d9a299f | 530 | } |
1a8d4663 DB |
531 | |
532 | /* Do power control. We don't allow changes in Vcc. */ | |
70294b46 | 533 | s->socket.Vpp = req->Vpp; |
d8b0a49d | 534 | if (s->ops->set_socket(s, &s->socket)) { |
9e86749c | 535 | mutex_unlock(&s->ops_mutex); |
d8b0a49d DB |
536 | dev_printk(KERN_WARNING, &s->dev, |
537 | "Unable to set socket state\n"); | |
538 | return -EINVAL; | |
539 | } | |
1a8d4663 | 540 | |
1a8d4663 DB |
541 | /* Pick memory or I/O card, DMA mode, interrupt */ |
542 | c->IntType = req->IntType; | |
543 | c->Attributes = req->Attributes; | |
544 | if (req->IntType & INT_MEMORY_AND_IO) | |
545 | s->socket.flags |= SS_IOCARD; | |
546 | if (req->IntType & INT_ZOOMED_VIDEO) | |
547 | s->socket.flags |= SS_ZVCARD | SS_IOCARD; | |
548 | if (req->Attributes & CONF_ENABLE_DMA) | |
549 | s->socket.flags |= SS_DMA_MODE; | |
550 | if (req->Attributes & CONF_ENABLE_SPKR) | |
551 | s->socket.flags |= SS_SPKR_ENA; | |
552 | if (req->Attributes & CONF_ENABLE_IRQ) | |
553 | s->socket.io_irq = s->irq.AssignedIRQ; | |
554 | else | |
555 | s->socket.io_irq = 0; | |
556 | s->ops->set_socket(s, &s->socket); | |
557 | s->lock_count++; | |
9e86749c | 558 | mutex_unlock(&s->ops_mutex); |
1a8d4663 DB |
559 | |
560 | /* Set up CIS configuration registers */ | |
561 | base = c->ConfigBase = req->ConfigBase; | |
1ae9c7d8 | 562 | c->CardValues = req->Present; |
1a8d4663 DB |
563 | if (req->Present & PRESENT_COPY) { |
564 | c->Copy = req->Copy; | |
565 | pcmcia_write_cis_mem(s, 1, (base + CISREG_SCR)>>1, 1, &c->Copy); | |
566 | } | |
567 | if (req->Present & PRESENT_OPTION) { | |
568 | if (s->functions == 1) { | |
569 | c->Option = req->ConfigIndex & COR_CONFIG_MASK; | |
570 | } else { | |
571 | c->Option = req->ConfigIndex & COR_MFC_CONFIG_MASK; | |
572 | c->Option |= COR_FUNC_ENA|COR_IREQ_ENA; | |
573 | if (req->Present & PRESENT_IOBASE_0) | |
574 | c->Option |= COR_ADDR_DECODE; | |
575 | } | |
576 | if (c->state & CONFIG_IRQ_REQ) | |
577 | if (!(c->irq.Attributes & IRQ_FORCED_PULSE)) | |
578 | c->Option |= COR_LEVEL_REQ; | |
579 | pcmcia_write_cis_mem(s, 1, (base + CISREG_COR)>>1, 1, &c->Option); | |
580 | mdelay(40); | |
581 | } | |
582 | if (req->Present & PRESENT_STATUS) { | |
583 | c->Status = req->Status; | |
584 | pcmcia_write_cis_mem(s, 1, (base + CISREG_CCSR)>>1, 1, &c->Status); | |
585 | } | |
586 | if (req->Present & PRESENT_PIN_REPLACE) { | |
587 | c->Pin = req->Pin; | |
588 | pcmcia_write_cis_mem(s, 1, (base + CISREG_PRR)>>1, 1, &c->Pin); | |
589 | } | |
590 | if (req->Present & PRESENT_EXT_STATUS) { | |
591 | c->ExtStatus = req->ExtStatus; | |
592 | pcmcia_write_cis_mem(s, 1, (base + CISREG_ESR)>>1, 1, &c->ExtStatus); | |
593 | } | |
594 | if (req->Present & PRESENT_IOBASE_0) { | |
595 | u_char b = c->io.BasePort1 & 0xff; | |
596 | pcmcia_write_cis_mem(s, 1, (base + CISREG_IOBASE_0)>>1, 1, &b); | |
597 | b = (c->io.BasePort1 >> 8) & 0xff; | |
598 | pcmcia_write_cis_mem(s, 1, (base + CISREG_IOBASE_1)>>1, 1, &b); | |
599 | } | |
600 | if (req->Present & PRESENT_IOSIZE) { | |
601 | u_char b = c->io.NumPorts1 + c->io.NumPorts2 - 1; | |
602 | pcmcia_write_cis_mem(s, 1, (base + CISREG_IOSIZE)>>1, 1, &b); | |
603 | } | |
604 | ||
605 | /* Configure I/O windows */ | |
606 | if (c->state & CONFIG_IO_REQ) { | |
8533ee31 | 607 | mutex_lock(&s->ops_mutex); |
1a8d4663 DB |
608 | iomap.speed = io_speed; |
609 | for (i = 0; i < MAX_IO_WIN; i++) | |
c7d00693 | 610 | if (s->io[i].res) { |
1a8d4663 DB |
611 | iomap.map = i; |
612 | iomap.flags = MAP_ACTIVE; | |
c7d00693 | 613 | switch (s->io[i].res->flags & IO_DATA_PATH_WIDTH) { |
1a8d4663 DB |
614 | case IO_DATA_PATH_WIDTH_16: |
615 | iomap.flags |= MAP_16BIT; break; | |
616 | case IO_DATA_PATH_WIDTH_AUTO: | |
617 | iomap.flags |= MAP_AUTOSZ; break; | |
618 | default: | |
619 | break; | |
620 | } | |
c7d00693 DB |
621 | iomap.start = s->io[i].res->start; |
622 | iomap.stop = s->io[i].res->end; | |
1a8d4663 DB |
623 | s->ops->set_io_map(s, &iomap); |
624 | s->io[i].Config++; | |
625 | } | |
8533ee31 | 626 | mutex_unlock(&s->ops_mutex); |
1a8d4663 DB |
627 | } |
628 | ||
629 | c->state |= CONFIG_LOCKED; | |
e2d40963 | 630 | p_dev->_locked = 1; |
4c89e88b | 631 | return 0; |
1a8d4663 DB |
632 | } /* pcmcia_request_configuration */ |
633 | EXPORT_SYMBOL(pcmcia_request_configuration); | |
634 | ||
635 | ||
636 | /** pcmcia_request_io | |
637 | * | |
638 | * Request_io() reserves ranges of port addresses for a socket. | |
639 | * I have not implemented range sharing or alias addressing. | |
640 | */ | |
2bc5a9bd | 641 | int pcmcia_request_io(struct pcmcia_device *p_dev, io_req_t *req) |
1a8d4663 | 642 | { |
2bc5a9bd | 643 | struct pcmcia_socket *s = p_dev->socket; |
1a8d4663 | 644 | config_t *c; |
94a819f8 DB |
645 | int ret = -EINVAL; |
646 | ||
647 | mutex_lock(&s->ops_mutex); | |
1a8d4663 | 648 | |
6d9a299f DB |
649 | if (!(s->state & SOCKET_PRESENT)) { |
650 | dev_dbg(&s->dev, "No card present\n"); | |
94a819f8 | 651 | goto out; |
6d9a299f | 652 | } |
1a8d4663 | 653 | |
1a8d4663 | 654 | if (!req) |
94a819f8 DB |
655 | goto out; |
656 | ||
dbb22f0d | 657 | c = p_dev->function_config; |
6d9a299f DB |
658 | if (c->state & CONFIG_LOCKED) { |
659 | dev_dbg(&s->dev, "Configuration is locked\n"); | |
94a819f8 | 660 | goto out; |
6d9a299f | 661 | } |
f958095e | 662 | if (c->state & CONFIG_IO_REQ) { |
d50dbec3 | 663 | dev_dbg(&s->dev, "IO already configured\n"); |
94a819f8 | 664 | goto out; |
f958095e | 665 | } |
610e2374 | 666 | if (req->Attributes1 & (IO_SHARED | IO_FORCE_ALIAS_ACCESS)) { |
d50dbec3 | 667 | dev_dbg(&s->dev, "bad attribute setting for IO region 1\n"); |
94a819f8 | 668 | goto out; |
610e2374 | 669 | } |
1a8d4663 | 670 | if ((req->NumPorts2 > 0) && |
610e2374 | 671 | (req->Attributes2 & (IO_SHARED | IO_FORCE_ALIAS_ACCESS))) { |
d50dbec3 | 672 | dev_dbg(&s->dev, "bad attribute setting for IO region 2\n"); |
94a819f8 | 673 | goto out; |
610e2374 | 674 | } |
1a8d4663 | 675 | |
d50dbec3 | 676 | dev_dbg(&s->dev, "trying to allocate resource 1\n"); |
94a819f8 DB |
677 | ret = alloc_io_space(s, req->Attributes1, &req->BasePort1, |
678 | req->NumPorts1, req->IOAddrLines); | |
679 | if (ret) { | |
d50dbec3 | 680 | dev_dbg(&s->dev, "allocation of resource 1 failed\n"); |
94a819f8 | 681 | goto out; |
f958095e | 682 | } |
1a8d4663 DB |
683 | |
684 | if (req->NumPorts2) { | |
d50dbec3 | 685 | dev_dbg(&s->dev, "trying to allocate resource 2\n"); |
94a819f8 DB |
686 | ret = alloc_io_space(s, req->Attributes2, &req->BasePort2, |
687 | req->NumPorts2, req->IOAddrLines); | |
688 | if (ret) { | |
d50dbec3 | 689 | dev_dbg(&s->dev, "allocation of resource 2 failed\n"); |
1a8d4663 | 690 | release_io_space(s, req->BasePort1, req->NumPorts1); |
94a819f8 | 691 | goto out; |
1a8d4663 DB |
692 | } |
693 | } | |
694 | ||
695 | c->io = *req; | |
696 | c->state |= CONFIG_IO_REQ; | |
e2d40963 | 697 | p_dev->_io = 1; |
94a819f8 DB |
698 | dev_dbg(&s->dev, "allocating resources succeeded: %d\n", ret); |
699 | ||
700 | out: | |
701 | mutex_unlock(&s->ops_mutex); | |
702 | ||
703 | return ret; | |
1a8d4663 DB |
704 | } /* pcmcia_request_io */ |
705 | EXPORT_SYMBOL(pcmcia_request_io); | |
706 | ||
707 | ||
708 | /** pcmcia_request_irq | |
709 | * | |
710 | * Request_irq() reserves an irq for this client. | |
711 | * | |
712 | * Also, since Linux only reserves irq's when they are actually | |
713 | * hooked, we don't guarantee that an irq will still be available | |
714 | * when the configuration is locked. Now that I think about it, | |
715 | * there might be a way to fix this using a dummy handler. | |
716 | */ | |
717 | ||
718 | #ifdef CONFIG_PCMCIA_PROBE | |
7d12e780 | 719 | static irqreturn_t test_action(int cpl, void *dev_id) |
1a8d4663 DB |
720 | { |
721 | return IRQ_NONE; | |
722 | } | |
723 | #endif | |
724 | ||
2bc5a9bd | 725 | int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req) |
1a8d4663 | 726 | { |
2bc5a9bd | 727 | struct pcmcia_socket *s = p_dev->socket; |
1a8d4663 | 728 | config_t *c; |
f958095e | 729 | int ret = -EINVAL, irq = 0; |
c533120b | 730 | int type; |
1a8d4663 | 731 | |
94a819f8 DB |
732 | mutex_lock(&s->ops_mutex); |
733 | ||
6d9a299f DB |
734 | if (!(s->state & SOCKET_PRESENT)) { |
735 | dev_dbg(&s->dev, "No card present\n"); | |
94a819f8 | 736 | goto out; |
6d9a299f | 737 | } |
dbb22f0d | 738 | c = p_dev->function_config; |
6d9a299f DB |
739 | if (c->state & CONFIG_LOCKED) { |
740 | dev_dbg(&s->dev, "Configuration is locked\n"); | |
94a819f8 | 741 | goto out; |
6d9a299f | 742 | } |
f958095e | 743 | if (c->state & CONFIG_IRQ_REQ) { |
d50dbec3 | 744 | dev_dbg(&s->dev, "IRQ already configured\n"); |
94a819f8 | 745 | goto out; |
f958095e | 746 | } |
1a8d4663 | 747 | |
c533120b AC |
748 | /* Decide what type of interrupt we are registering */ |
749 | type = 0; | |
750 | if (s->functions > 1) /* All of this ought to be handled higher up */ | |
dace1453 | 751 | type = IRQF_SHARED; |
7bbfd39b | 752 | else if (req->Attributes & IRQ_TYPE_DYNAMIC_SHARING) |
dace1453 | 753 | type = IRQF_SHARED; |
9fea84f4 DB |
754 | else |
755 | printk(KERN_WARNING "pcmcia: Driver needs updating to support IRQ sharing.\n"); | |
c533120b | 756 | |
1a8d4663 | 757 | #ifdef CONFIG_PCMCIA_PROBE |
635416ef | 758 | |
1a8d4663 DB |
759 | if (s->irq.AssignedIRQ != 0) { |
760 | /* If the interrupt is already assigned, it must be the same */ | |
761 | irq = s->irq.AssignedIRQ; | |
762 | } else { | |
763 | int try; | |
764 | u32 mask = s->irq_mask; | |
5fa9167a | 765 | void *data = p_dev; /* something unique to this device */ |
1a8d4663 DB |
766 | |
767 | for (try = 0; try < 64; try++) { | |
768 | irq = try % 32; | |
769 | ||
770 | /* marked as available by driver, and not blocked by userspace? */ | |
771 | if (!((mask >> irq) & 1)) | |
772 | continue; | |
773 | ||
774 | /* avoid an IRQ which is already used by a PCMCIA card */ | |
775 | if ((try < 32) && pcmcia_used_irq[irq]) | |
776 | continue; | |
777 | ||
778 | /* register the correct driver, if possible, of check whether | |
779 | * registering a dummy handle works, i.e. if the IRQ isn't | |
780 | * marked as used by the kernel resource management core */ | |
781 | ret = request_irq(irq, | |
5fa9167a | 782 | (req->Handler) ? req->Handler : test_action, |
c533120b | 783 | type, |
bd65a685 | 784 | p_dev->devname, |
5fa9167a | 785 | (req->Handler) ? p_dev->priv : data); |
1a8d4663 | 786 | if (!ret) { |
5fa9167a | 787 | if (!req->Handler) |
1a8d4663 DB |
788 | free_irq(irq, data); |
789 | break; | |
790 | } | |
791 | } | |
792 | } | |
793 | #endif | |
c181e0e0 DR |
794 | /* only assign PCI irq if no IRQ already assigned */ |
795 | if (ret && !s->irq.AssignedIRQ) { | |
6d9a299f DB |
796 | if (!s->pci_irq) { |
797 | dev_printk(KERN_INFO, &s->dev, "no IRQ found\n"); | |
94a819f8 | 798 | goto out; |
6d9a299f | 799 | } |
dace1453 | 800 | type = IRQF_SHARED; |
1a8d4663 DB |
801 | irq = s->pci_irq; |
802 | } | |
803 | ||
5fa9167a | 804 | if (ret && req->Handler) { |
f958095e | 805 | ret = request_irq(irq, req->Handler, type, |
5fa9167a | 806 | p_dev->devname, p_dev->priv); |
6d9a299f DB |
807 | if (ret) { |
808 | dev_printk(KERN_INFO, &s->dev, | |
809 | "request_irq() failed\n"); | |
94a819f8 | 810 | goto out; |
6d9a299f | 811 | } |
1a8d4663 DB |
812 | } |
813 | ||
c533120b | 814 | /* Make sure the fact the request type was overridden is passed back */ |
dace1453 | 815 | if (type == IRQF_SHARED && !(req->Attributes & IRQ_TYPE_DYNAMIC_SHARING)) { |
c533120b | 816 | req->Attributes |= IRQ_TYPE_DYNAMIC_SHARING; |
ac449d6e DB |
817 | dev_printk(KERN_WARNING, &p_dev->dev, "pcmcia: " |
818 | "request for exclusive IRQ could not be fulfilled.\n"); | |
819 | dev_printk(KERN_WARNING, &p_dev->dev, "pcmcia: the driver " | |
820 | "needs updating to supported shared IRQ lines.\n"); | |
c533120b | 821 | } |
1a8d4663 DB |
822 | c->irq.Attributes = req->Attributes; |
823 | s->irq.AssignedIRQ = req->AssignedIRQ = irq; | |
824 | s->irq.Config++; | |
825 | ||
826 | c->state |= CONFIG_IRQ_REQ; | |
e2d40963 | 827 | p_dev->_irq = 1; |
1a8d4663 DB |
828 | |
829 | #ifdef CONFIG_PCMCIA_PROBE | |
830 | pcmcia_used_irq[irq]++; | |
831 | #endif | |
832 | ||
94a819f8 DB |
833 | ret = 0; |
834 | out: | |
9e86749c | 835 | mutex_unlock(&s->ops_mutex); |
94a819f8 | 836 | return ret; |
1a8d4663 DB |
837 | } /* pcmcia_request_irq */ |
838 | EXPORT_SYMBOL(pcmcia_request_irq); | |
839 | ||
840 | ||
841 | /** pcmcia_request_window | |
842 | * | |
843 | * Request_window() establishes a mapping between card memory space | |
844 | * and system memory space. | |
845 | */ | |
6838b03f | 846 | int pcmcia_request_window(struct pcmcia_device *p_dev, win_req_t *req, window_handle_t *wh) |
1a8d4663 | 847 | { |
6838b03f | 848 | struct pcmcia_socket *s = p_dev->socket; |
82f88e36 | 849 | pccard_mem_map *win; |
1a8d4663 DB |
850 | u_long align; |
851 | int w; | |
852 | ||
6d9a299f DB |
853 | if (!(s->state & SOCKET_PRESENT)) { |
854 | dev_dbg(&s->dev, "No card present\n"); | |
3939c1ef | 855 | return -ENODEV; |
6d9a299f | 856 | } |
610e2374 | 857 | if (req->Attributes & (WIN_PAGED | WIN_SHARED)) { |
d50dbec3 | 858 | dev_dbg(&s->dev, "bad attribute setting for iomem region\n"); |
610e2374 DB |
859 | return -EINVAL; |
860 | } | |
1a8d4663 DB |
861 | |
862 | /* Window size defaults to smallest available */ | |
863 | if (req->Size == 0) | |
864 | req->Size = s->map_size; | |
865 | align = (((s->features & SS_CAP_MEM_ALIGN) || | |
866 | (req->Attributes & WIN_STRICT_ALIGN)) ? | |
867 | req->Size : s->map_size); | |
69ba4433 | 868 | if (req->Size & (s->map_size-1)) { |
d50dbec3 | 869 | dev_dbg(&s->dev, "invalid map size\n"); |
69ba4433 DB |
870 | return -EINVAL; |
871 | } | |
1a8d4663 | 872 | if ((req->Base && (s->features & SS_CAP_STATIC_MAP)) || |
69ba4433 | 873 | (req->Base & (align-1))) { |
d50dbec3 | 874 | dev_dbg(&s->dev, "invalid base address\n"); |
69ba4433 DB |
875 | return -EINVAL; |
876 | } | |
1a8d4663 DB |
877 | if (req->Base) |
878 | align = 0; | |
879 | ||
880 | /* Allocate system memory window */ | |
881 | for (w = 0; w < MAX_WIN; w++) | |
9fea84f4 DB |
882 | if (!(s->state & SOCKET_WIN_REQ(w))) |
883 | break; | |
f958095e | 884 | if (w == MAX_WIN) { |
d50dbec3 | 885 | dev_dbg(&s->dev, "all windows are used already\n"); |
f958095e DB |
886 | return -EINVAL; |
887 | } | |
1a8d4663 | 888 | |
6b8e087b | 889 | mutex_lock(&s->ops_mutex); |
1a8d4663 | 890 | win = &s->win[w]; |
1a8d4663 DB |
891 | |
892 | if (!(s->features & SS_CAP_STATIC_MAP)) { | |
82f88e36 | 893 | win->res = pcmcia_find_mem_region(req->Base, req->Size, align, |
1a8d4663 | 894 | (req->Attributes & WIN_MAP_BELOW_1MB), s); |
82f88e36 | 895 | if (!win->res) { |
d50dbec3 | 896 | dev_dbg(&s->dev, "allocating mem region failed\n"); |
6b8e087b | 897 | mutex_unlock(&s->ops_mutex); |
f958095e DB |
898 | return -EINVAL; |
899 | } | |
1a8d4663 | 900 | } |
6838b03f | 901 | p_dev->_win |= CLIENT_WIN_REQ(w); |
1a8d4663 DB |
902 | |
903 | /* Configure the socket controller */ | |
82f88e36 DB |
904 | win->map = w+1; |
905 | win->flags = 0; | |
906 | win->speed = req->AccessSpeed; | |
1a8d4663 | 907 | if (req->Attributes & WIN_MEMORY_TYPE) |
82f88e36 | 908 | win->flags |= MAP_ATTRIB; |
1a8d4663 | 909 | if (req->Attributes & WIN_ENABLE) |
82f88e36 | 910 | win->flags |= MAP_ACTIVE; |
1a8d4663 | 911 | if (req->Attributes & WIN_DATA_WIDTH_16) |
82f88e36 | 912 | win->flags |= MAP_16BIT; |
1a8d4663 | 913 | if (req->Attributes & WIN_USE_WAIT) |
82f88e36 DB |
914 | win->flags |= MAP_USE_WAIT; |
915 | win->card_start = 0; | |
6b8e087b | 916 | |
82f88e36 | 917 | if (s->ops->set_mem_map(s, win) != 0) { |
d50dbec3 | 918 | dev_dbg(&s->dev, "failed to set memory mapping\n"); |
6b8e087b | 919 | mutex_unlock(&s->ops_mutex); |
926c5402 DB |
920 | return -EIO; |
921 | } | |
1a8d4663 DB |
922 | s->state |= SOCKET_WIN_REQ(w); |
923 | ||
924 | /* Return window handle */ | |
9fea84f4 | 925 | if (s->features & SS_CAP_STATIC_MAP) |
82f88e36 | 926 | req->Base = win->static_start; |
9fea84f4 | 927 | else |
82f88e36 | 928 | req->Base = win->res->start; |
9fea84f4 | 929 | |
6b8e087b | 930 | mutex_unlock(&s->ops_mutex); |
0bdf9b3d | 931 | *wh = w + 1; |
1a8d4663 | 932 | |
4c89e88b | 933 | return 0; |
1a8d4663 DB |
934 | } /* pcmcia_request_window */ |
935 | EXPORT_SYMBOL(pcmcia_request_window); | |
5f2a71fc | 936 | |
9fea84f4 DB |
937 | void pcmcia_disable_device(struct pcmcia_device *p_dev) |
938 | { | |
5f2a71fc | 939 | pcmcia_release_configuration(p_dev); |
fd238232 DB |
940 | pcmcia_release_io(p_dev, &p_dev->io); |
941 | pcmcia_release_irq(p_dev, &p_dev->irq); | |
c1ac0228 | 942 | if (p_dev->win) |
f5560da5 | 943 | pcmcia_release_window(p_dev, p_dev->win); |
5f2a71fc DB |
944 | } |
945 | EXPORT_SYMBOL(pcmcia_disable_device); | |
a804b574 DB |
946 | |
947 | ||
948 | struct pcmcia_cfg_mem { | |
91284224 DB |
949 | struct pcmcia_device *p_dev; |
950 | void *priv_data; | |
951 | int (*conf_check) (struct pcmcia_device *p_dev, | |
952 | cistpl_cftable_entry_t *cfg, | |
953 | cistpl_cftable_entry_t *dflt, | |
954 | unsigned int vcc, | |
955 | void *priv_data); | |
a804b574 | 956 | cisparse_t parse; |
8e2fc39d | 957 | cistpl_cftable_entry_t dflt; |
a804b574 DB |
958 | }; |
959 | ||
91284224 DB |
960 | /** |
961 | * pcmcia_do_loop_config() - internal helper for pcmcia_loop_config() | |
962 | * | |
963 | * pcmcia_do_loop_config() is the internal callback for the call from | |
964 | * pcmcia_loop_config() to pccard_loop_tuple(). Data is transferred | |
965 | * by a struct pcmcia_cfg_mem. | |
966 | */ | |
967 | static int pcmcia_do_loop_config(tuple_t *tuple, cisparse_t *parse, void *priv) | |
968 | { | |
969 | cistpl_cftable_entry_t *cfg = &parse->cftable_entry; | |
970 | struct pcmcia_cfg_mem *cfg_mem = priv; | |
971 | ||
972 | /* default values */ | |
973 | cfg_mem->p_dev->conf.ConfigIndex = cfg->index; | |
974 | if (cfg->flags & CISTPL_CFTABLE_DEFAULT) | |
975 | cfg_mem->dflt = *cfg; | |
976 | ||
977 | return cfg_mem->conf_check(cfg_mem->p_dev, cfg, &cfg_mem->dflt, | |
978 | cfg_mem->p_dev->socket->socket.Vcc, | |
979 | cfg_mem->priv_data); | |
980 | } | |
981 | ||
a804b574 DB |
982 | /** |
983 | * pcmcia_loop_config() - loop over configuration options | |
984 | * @p_dev: the struct pcmcia_device which we need to loop for. | |
985 | * @conf_check: function to call for each configuration option. | |
986 | * It gets passed the struct pcmcia_device, the CIS data | |
987 | * describing the configuration option, and private data | |
988 | * being passed to pcmcia_loop_config() | |
989 | * @priv_data: private data to be passed to the conf_check function. | |
990 | * | |
991 | * pcmcia_loop_config() loops over all configuration options, and calls | |
992 | * the driver-specific conf_check() for each one, checking whether | |
889c2774 | 993 | * it is a valid one. Returns 0 on success or errorcode otherwise. |
a804b574 DB |
994 | */ |
995 | int pcmcia_loop_config(struct pcmcia_device *p_dev, | |
996 | int (*conf_check) (struct pcmcia_device *p_dev, | |
997 | cistpl_cftable_entry_t *cfg, | |
8e2fc39d | 998 | cistpl_cftable_entry_t *dflt, |
ad913c11 | 999 | unsigned int vcc, |
a804b574 DB |
1000 | void *priv_data), |
1001 | void *priv_data) | |
1002 | { | |
1003 | struct pcmcia_cfg_mem *cfg_mem; | |
889c2774 | 1004 | int ret; |
a804b574 DB |
1005 | |
1006 | cfg_mem = kzalloc(sizeof(struct pcmcia_cfg_mem), GFP_KERNEL); | |
1007 | if (cfg_mem == NULL) | |
1008 | return -ENOMEM; | |
1009 | ||
91284224 DB |
1010 | cfg_mem->p_dev = p_dev; |
1011 | cfg_mem->conf_check = conf_check; | |
1012 | cfg_mem->priv_data = priv_data; | |
ad913c11 | 1013 | |
91284224 DB |
1014 | ret = pccard_loop_tuple(p_dev->socket, p_dev->func, |
1015 | CISTPL_CFTABLE_ENTRY, &cfg_mem->parse, | |
1016 | cfg_mem, pcmcia_do_loop_config); | |
a804b574 | 1017 | |
91284224 DB |
1018 | kfree(cfg_mem); |
1019 | return ret; | |
1020 | } | |
1021 | EXPORT_SYMBOL(pcmcia_loop_config); | |
498ac189 | 1022 | |
a804b574 | 1023 | |
91284224 DB |
1024 | struct pcmcia_loop_mem { |
1025 | struct pcmcia_device *p_dev; | |
1026 | void *priv_data; | |
1027 | int (*loop_tuple) (struct pcmcia_device *p_dev, | |
1028 | tuple_t *tuple, | |
1029 | void *priv_data); | |
1030 | }; | |
a804b574 | 1031 | |
91284224 DB |
1032 | /** |
1033 | * pcmcia_do_loop_tuple() - internal helper for pcmcia_loop_config() | |
1034 | * | |
1035 | * pcmcia_do_loop_tuple() is the internal callback for the call from | |
1036 | * pcmcia_loop_tuple() to pccard_loop_tuple(). Data is transferred | |
1037 | * by a struct pcmcia_cfg_mem. | |
1038 | */ | |
1039 | static int pcmcia_do_loop_tuple(tuple_t *tuple, cisparse_t *parse, void *priv) | |
1040 | { | |
1041 | struct pcmcia_loop_mem *loop = priv; | |
498ac189 | 1042 | |
91284224 DB |
1043 | return loop->loop_tuple(loop->p_dev, tuple, loop->priv_data); |
1044 | }; | |
1045 | ||
1046 | /** | |
1047 | * pcmcia_loop_tuple() - loop over tuples in the CIS | |
1048 | * @p_dev: the struct pcmcia_device which we need to loop for. | |
1049 | * @code: which CIS code shall we look for? | |
1050 | * @priv_data: private data to be passed to the loop_tuple function. | |
1051 | * @loop_tuple: function to call for each CIS entry of type @function. IT | |
1052 | * gets passed the raw tuple and @priv_data. | |
1053 | * | |
1054 | * pcmcia_loop_tuple() loops over all CIS entries of type @function, and | |
1055 | * calls the @loop_tuple function for each entry. If the call to @loop_tuple | |
1056 | * returns 0, the loop exits. Returns 0 on success or errorcode otherwise. | |
1057 | */ | |
1058 | int pcmcia_loop_tuple(struct pcmcia_device *p_dev, cisdata_t code, | |
1059 | int (*loop_tuple) (struct pcmcia_device *p_dev, | |
1060 | tuple_t *tuple, | |
1061 | void *priv_data), | |
1062 | void *priv_data) | |
1063 | { | |
1064 | struct pcmcia_loop_mem loop = { | |
1065 | .p_dev = p_dev, | |
1066 | .loop_tuple = loop_tuple, | |
1067 | .priv_data = priv_data}; | |
1068 | ||
1069 | return pccard_loop_tuple(p_dev->socket, p_dev->func, code, NULL, | |
1070 | &loop, pcmcia_do_loop_tuple); | |
9fea84f4 | 1071 | } |
91284224 | 1072 | EXPORT_SYMBOL(pcmcia_loop_tuple); |
a804b574 | 1073 | |
91284224 DB |
1074 | |
1075 | struct pcmcia_loop_get { | |
1076 | size_t len; | |
1077 | cisdata_t **buf; | |
1078 | }; | |
1079 | ||
1080 | /** | |
1081 | * pcmcia_do_get_tuple() - internal helper for pcmcia_get_tuple() | |
1082 | * | |
1083 | * pcmcia_do_get_tuple() is the internal callback for the call from | |
1084 | * pcmcia_get_tuple() to pcmcia_loop_tuple(). As we're only interested in | |
1085 | * the first tuple, return 0 unconditionally. Create a memory buffer large | |
1086 | * enough to hold the content of the tuple, and fill it with the tuple data. | |
1087 | * The caller is responsible to free the buffer. | |
1088 | */ | |
1089 | static int pcmcia_do_get_tuple(struct pcmcia_device *p_dev, tuple_t *tuple, | |
1090 | void *priv) | |
1091 | { | |
1092 | struct pcmcia_loop_get *get = priv; | |
1093 | ||
1094 | *get->buf = kzalloc(tuple->TupleDataLen, GFP_KERNEL); | |
1095 | if (*get->buf) { | |
1096 | get->len = tuple->TupleDataLen; | |
1097 | memcpy(*get->buf, tuple->TupleData, tuple->TupleDataLen); | |
6d9a299f DB |
1098 | } else |
1099 | dev_dbg(&p_dev->dev, "do_get_tuple: out of memory\n"); | |
91284224 | 1100 | return 0; |
9fea84f4 | 1101 | } |
91284224 DB |
1102 | |
1103 | /** | |
1104 | * pcmcia_get_tuple() - get first tuple from CIS | |
1105 | * @p_dev: the struct pcmcia_device which we need to loop for. | |
1106 | * @code: which CIS code shall we look for? | |
1107 | * @buf: pointer to store the buffer to. | |
1108 | * | |
1109 | * pcmcia_get_tuple() gets the content of the first CIS entry of type @code. | |
1110 | * It returns the buffer length (or zero). The caller is responsible to free | |
1111 | * the buffer passed in @buf. | |
1112 | */ | |
1113 | size_t pcmcia_get_tuple(struct pcmcia_device *p_dev, cisdata_t code, | |
1114 | unsigned char **buf) | |
1115 | { | |
1116 | struct pcmcia_loop_get get = { | |
1117 | .len = 0, | |
1118 | .buf = buf, | |
1119 | }; | |
1120 | ||
1121 | *get.buf = NULL; | |
1122 | pcmcia_loop_tuple(p_dev, code, pcmcia_do_get_tuple, &get); | |
1123 | ||
1124 | return get.len; | |
9fea84f4 | 1125 | } |
91284224 DB |
1126 | EXPORT_SYMBOL(pcmcia_get_tuple); |
1127 | ||
1128 | ||
1129 | /** | |
1130 | * pcmcia_do_get_mac() - internal helper for pcmcia_get_mac_from_cis() | |
1131 | * | |
1132 | * pcmcia_do_get_mac() is the internal callback for the call from | |
1133 | * pcmcia_get_mac_from_cis() to pcmcia_loop_tuple(). We check whether the | |
1134 | * tuple contains a proper LAN_NODE_ID of length 6, and copy the data | |
1135 | * to struct net_device->dev_addr[i]. | |
1136 | */ | |
1137 | static int pcmcia_do_get_mac(struct pcmcia_device *p_dev, tuple_t *tuple, | |
1138 | void *priv) | |
1139 | { | |
1140 | struct net_device *dev = priv; | |
1141 | int i; | |
1142 | ||
1143 | if (tuple->TupleData[0] != CISTPL_FUNCE_LAN_NODE_ID) | |
1144 | return -EINVAL; | |
1145 | if (tuple->TupleDataLen < ETH_ALEN + 2) { | |
1146 | dev_warn(&p_dev->dev, "Invalid CIS tuple length for " | |
1147 | "LAN_NODE_ID\n"); | |
1148 | return -EINVAL; | |
1149 | } | |
1150 | ||
1151 | if (tuple->TupleData[1] != ETH_ALEN) { | |
1152 | dev_warn(&p_dev->dev, "Invalid header for LAN_NODE_ID\n"); | |
1153 | return -EINVAL; | |
1154 | } | |
1155 | for (i = 0; i < 6; i++) | |
1156 | dev->dev_addr[i] = tuple->TupleData[i+2]; | |
1157 | return 0; | |
9fea84f4 | 1158 | } |
91284224 DB |
1159 | |
1160 | /** | |
1161 | * pcmcia_get_mac_from_cis() - read out MAC address from CISTPL_FUNCE | |
1162 | * @p_dev: the struct pcmcia_device for which we want the address. | |
1163 | * @dev: a properly prepared struct net_device to store the info to. | |
1164 | * | |
1165 | * pcmcia_get_mac_from_cis() reads out the hardware MAC address from | |
1166 | * CISTPL_FUNCE and stores it into struct net_device *dev->dev_addr which | |
1167 | * must be set up properly by the driver (see examples!). | |
1168 | */ | |
1169 | int pcmcia_get_mac_from_cis(struct pcmcia_device *p_dev, struct net_device *dev) | |
1170 | { | |
1171 | return pcmcia_loop_tuple(p_dev, CISTPL_FUNCE, pcmcia_do_get_mac, dev); | |
9fea84f4 | 1172 | } |
91284224 | 1173 | EXPORT_SYMBOL(pcmcia_get_mac_from_cis); |
a804b574 | 1174 |