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> | |
23 | ||
24 | #define IN_CARD_SERVICES | |
1a8d4663 DB |
25 | #include <pcmcia/cs_types.h> |
26 | #include <pcmcia/ss.h> | |
27 | #include <pcmcia/cs.h> | |
28 | #include <pcmcia/bulkmem.h> | |
29 | #include <pcmcia/cistpl.h> | |
30 | #include <pcmcia/cisreg.h> | |
31 | #include <pcmcia/ds.h> | |
32 | ||
33 | #include "cs_internal.h" | |
34 | #include "ds_internal.h" | |
35 | ||
36 | ||
1a8d4663 DB |
37 | /* Access speed for IO windows */ |
38 | static int io_speed = 0; | |
39 | module_param(io_speed, int, 0444); | |
40 | ||
41 | ||
42 | #ifdef CONFIG_PCMCIA_PROBE | |
531e5ca6 | 43 | #include <asm/irq.h> |
1a8d4663 DB |
44 | /* mask of IRQs already reserved by other cards, we should avoid using them */ |
45 | static u8 pcmcia_used_irq[NR_IRQS]; | |
46 | #endif | |
47 | ||
48 | ||
49 | #ifdef DEBUG | |
50 | extern int ds_pc_debug; | |
51 | #define cs_socket_name(skt) ((skt)->dev.class_id) | |
52 | ||
53 | #define ds_dbg(skt, lvl, fmt, arg...) do { \ | |
54 | if (ds_pc_debug >= lvl) \ | |
55 | printk(KERN_DEBUG "pcmcia_resource: %s: " fmt, \ | |
56 | cs_socket_name(skt) , ## arg); \ | |
57 | } while (0) | |
58 | #else | |
59 | #define ds_dbg(lvl, fmt, arg...) do { } while (0) | |
60 | #endif | |
61 | ||
62 | ||
63 | ||
64 | /** alloc_io_space | |
65 | * | |
66 | * Special stuff for managing IO windows, because they are scarce | |
67 | */ | |
68 | ||
69 | static int alloc_io_space(struct pcmcia_socket *s, u_int attr, ioaddr_t *base, | |
70 | ioaddr_t num, u_int lines) | |
71 | { | |
72 | int i; | |
73 | kio_addr_t try, align; | |
74 | ||
75 | align = (*base) ? (lines ? 1<<lines : 0) : 1; | |
76 | if (align && (align < num)) { | |
77 | if (*base) { | |
78 | ds_dbg(s, 0, "odd IO request: num %#x align %#lx\n", | |
79 | num, align); | |
80 | align = 0; | |
81 | } else | |
82 | while (align && (align < num)) align <<= 1; | |
83 | } | |
84 | if (*base & ~(align-1)) { | |
85 | ds_dbg(s, 0, "odd IO request: base %#x align %#lx\n", | |
86 | *base, align); | |
87 | align = 0; | |
88 | } | |
89 | if ((s->features & SS_CAP_STATIC_MAP) && s->io_offset) { | |
90 | *base = s->io_offset | (*base & 0x0fff); | |
57b6281c | 91 | s->io[0].Attributes = attr; |
1a8d4663 DB |
92 | return 0; |
93 | } | |
94 | /* Check for an already-allocated window that must conflict with | |
95 | * what was asked for. It is a hack because it does not catch all | |
96 | * potential conflicts, just the most obvious ones. | |
97 | */ | |
98 | for (i = 0; i < MAX_IO_WIN; i++) | |
99 | if ((s->io[i].NumPorts != 0) && | |
100 | ((s->io[i].BasePort & (align-1)) == *base)) | |
101 | return 1; | |
102 | for (i = 0; i < MAX_IO_WIN; i++) { | |
103 | if (s->io[i].NumPorts == 0) { | |
104 | s->io[i].res = pcmcia_find_io_region(*base, num, align, s); | |
105 | if (s->io[i].res) { | |
106 | s->io[i].Attributes = attr; | |
107 | s->io[i].BasePort = *base = s->io[i].res->start; | |
108 | s->io[i].NumPorts = s->io[i].InUse = num; | |
109 | break; | |
110 | } else | |
111 | return 1; | |
112 | } else if (s->io[i].Attributes != attr) | |
113 | continue; | |
114 | /* Try to extend top of window */ | |
115 | try = s->io[i].BasePort + s->io[i].NumPorts; | |
116 | if ((*base == 0) || (*base == try)) | |
117 | if (pcmcia_adjust_io_region(s->io[i].res, s->io[i].res->start, | |
118 | s->io[i].res->end + num, s) == 0) { | |
119 | *base = try; | |
120 | s->io[i].NumPorts += num; | |
121 | s->io[i].InUse += num; | |
122 | break; | |
123 | } | |
124 | /* Try to extend bottom of window */ | |
125 | try = s->io[i].BasePort - num; | |
126 | if ((*base == 0) || (*base == try)) | |
127 | if (pcmcia_adjust_io_region(s->io[i].res, s->io[i].res->start - num, | |
128 | s->io[i].res->end, s) == 0) { | |
129 | s->io[i].BasePort = *base = try; | |
130 | s->io[i].NumPorts += num; | |
131 | s->io[i].InUse += num; | |
132 | break; | |
133 | } | |
134 | } | |
135 | return (i == MAX_IO_WIN); | |
136 | } /* alloc_io_space */ | |
137 | ||
138 | ||
139 | static void release_io_space(struct pcmcia_socket *s, ioaddr_t base, | |
140 | ioaddr_t num) | |
141 | { | |
142 | int i; | |
143 | ||
144 | for (i = 0; i < MAX_IO_WIN; i++) { | |
145 | if ((s->io[i].BasePort <= base) && | |
146 | (s->io[i].BasePort+s->io[i].NumPorts >= base+num)) { | |
147 | s->io[i].InUse -= num; | |
148 | /* Free the window if no one else is using it */ | |
149 | if (s->io[i].InUse == 0) { | |
150 | s->io[i].NumPorts = 0; | |
151 | release_resource(s->io[i].res); | |
152 | kfree(s->io[i].res); | |
153 | s->io[i].res = NULL; | |
154 | } | |
155 | } | |
156 | } | |
157 | } /* release_io_space */ | |
158 | ||
159 | ||
160 | /** pccard_access_configuration_register | |
161 | * | |
162 | * Access_configuration_register() reads and writes configuration | |
163 | * registers in attribute memory. Memory window 0 is reserved for | |
164 | * this and the tuple reading services. | |
165 | */ | |
166 | ||
855cdf13 | 167 | int pcmcia_access_configuration_register(struct pcmcia_device *p_dev, |
1a8d4663 DB |
168 | conf_reg_t *reg) |
169 | { | |
855cdf13 | 170 | struct pcmcia_socket *s; |
1a8d4663 DB |
171 | config_t *c; |
172 | int addr; | |
173 | u_char val; | |
174 | ||
855cdf13 | 175 | if (!p_dev || !p_dev->function_config) |
1a8d4663 DB |
176 | return CS_NO_CARD; |
177 | ||
855cdf13 DB |
178 | s = p_dev->socket; |
179 | c = p_dev->function_config; | |
1a8d4663 DB |
180 | |
181 | if (!(c->state & CONFIG_LOCKED)) | |
182 | return CS_CONFIGURATION_LOCKED; | |
183 | ||
184 | addr = (c->ConfigBase + reg->Offset) >> 1; | |
185 | ||
186 | switch (reg->Action) { | |
187 | case CS_READ: | |
188 | pcmcia_read_cis_mem(s, 1, addr, 1, &val); | |
189 | reg->Value = val; | |
190 | break; | |
191 | case CS_WRITE: | |
192 | val = reg->Value; | |
193 | pcmcia_write_cis_mem(s, 1, addr, 1, &val); | |
194 | break; | |
195 | default: | |
196 | return CS_BAD_ARGS; | |
197 | break; | |
198 | } | |
199 | return CS_SUCCESS; | |
855cdf13 | 200 | } /* pcmcia_access_configuration_register */ |
3448139b DB |
201 | EXPORT_SYMBOL(pcmcia_access_configuration_register); |
202 | ||
1a8d4663 | 203 | |
1a8d4663 | 204 | int pccard_get_configuration_info(struct pcmcia_socket *s, |
855cdf13 | 205 | struct pcmcia_device *p_dev, |
1a8d4663 DB |
206 | config_info_t *config) |
207 | { | |
208 | config_t *c; | |
209 | ||
210 | if (!(s->state & SOCKET_PRESENT)) | |
211 | return CS_NO_CARD; | |
212 | ||
855cdf13 | 213 | config->Function = p_dev->func; |
1a8d4663 DB |
214 | |
215 | #ifdef CONFIG_CARDBUS | |
216 | if (s->state & SOCKET_CARDBUS) { | |
217 | memset(config, 0, sizeof(config_info_t)); | |
218 | config->Vcc = s->socket.Vcc; | |
219 | config->Vpp1 = config->Vpp2 = s->socket.Vpp; | |
220 | config->Option = s->cb_dev->subordinate->number; | |
221 | if (s->state & SOCKET_CARDBUS_CONFIG) { | |
222 | config->Attributes = CONF_VALID_CLIENT; | |
223 | config->IntType = INT_CARDBUS; | |
224 | config->AssignedIRQ = s->irq.AssignedIRQ; | |
225 | if (config->AssignedIRQ) | |
226 | config->Attributes |= CONF_ENABLE_IRQ; | |
227 | config->BasePort1 = s->io[0].BasePort; | |
228 | config->NumPorts1 = s->io[0].NumPorts; | |
229 | } | |
230 | return CS_SUCCESS; | |
231 | } | |
232 | #endif | |
233 | ||
855cdf13 | 234 | c = (p_dev) ? p_dev->function_config : NULL; |
1a8d4663 DB |
235 | |
236 | if ((c == NULL) || !(c->state & CONFIG_LOCKED)) { | |
237 | config->Attributes = 0; | |
238 | config->Vcc = s->socket.Vcc; | |
239 | config->Vpp1 = config->Vpp2 = s->socket.Vpp; | |
240 | return CS_SUCCESS; | |
241 | } | |
242 | ||
243 | /* !!! This is a hack !!! */ | |
244 | memcpy(&config->Attributes, &c->Attributes, sizeof(config_t)); | |
245 | config->Attributes |= CONF_VALID_CLIENT; | |
246 | config->CardValues = c->CardValues; | |
247 | config->IRQAttributes = c->irq.Attributes; | |
248 | config->AssignedIRQ = s->irq.AssignedIRQ; | |
249 | config->BasePort1 = c->io.BasePort1; | |
250 | config->NumPorts1 = c->io.NumPorts1; | |
251 | config->Attributes1 = c->io.Attributes1; | |
252 | config->BasePort2 = c->io.BasePort2; | |
253 | config->NumPorts2 = c->io.NumPorts2; | |
254 | config->Attributes2 = c->io.Attributes2; | |
255 | config->IOAddrLines = c->io.IOAddrLines; | |
256 | ||
257 | return CS_SUCCESS; | |
258 | } /* pccard_get_configuration_info */ | |
1a8d4663 | 259 | |
2bc5a9bd | 260 | int pcmcia_get_configuration_info(struct pcmcia_device *p_dev, |
3448139b | 261 | config_info_t *config) |
1a8d4663 | 262 | { |
855cdf13 | 263 | return pccard_get_configuration_info(p_dev->socket, p_dev, |
2bc5a9bd | 264 | config); |
3448139b DB |
265 | } |
266 | EXPORT_SYMBOL(pcmcia_get_configuration_info); | |
1a8d4663 DB |
267 | |
268 | ||
269 | /** pcmcia_get_window | |
270 | */ | |
271 | int pcmcia_get_window(struct pcmcia_socket *s, window_handle_t *handle, | |
272 | int idx, win_req_t *req) | |
273 | { | |
274 | window_t *win; | |
275 | int w; | |
276 | ||
277 | if (!s || !(s->state & SOCKET_PRESENT)) | |
278 | return CS_NO_CARD; | |
279 | for (w = idx; w < MAX_WIN; w++) | |
280 | if (s->state & SOCKET_WIN_REQ(w)) | |
281 | break; | |
282 | if (w == MAX_WIN) | |
283 | return CS_NO_MORE_ITEMS; | |
284 | win = &s->win[w]; | |
285 | req->Base = win->ctl.res->start; | |
286 | req->Size = win->ctl.res->end - win->ctl.res->start + 1; | |
287 | req->AccessSpeed = win->ctl.speed; | |
288 | req->Attributes = 0; | |
289 | if (win->ctl.flags & MAP_ATTRIB) | |
290 | req->Attributes |= WIN_MEMORY_TYPE_AM; | |
291 | if (win->ctl.flags & MAP_ACTIVE) | |
292 | req->Attributes |= WIN_ENABLE; | |
293 | if (win->ctl.flags & MAP_16BIT) | |
294 | req->Attributes |= WIN_DATA_WIDTH_16; | |
295 | if (win->ctl.flags & MAP_USE_WAIT) | |
296 | req->Attributes |= WIN_USE_WAIT; | |
297 | *handle = win; | |
298 | return CS_SUCCESS; | |
299 | } /* pcmcia_get_window */ | |
300 | EXPORT_SYMBOL(pcmcia_get_window); | |
301 | ||
302 | ||
303 | /** pccard_get_status | |
304 | * | |
305 | * Get the current socket state bits. We don't support the latched | |
306 | * SocketState yet: I haven't seen any point for it. | |
307 | */ | |
308 | ||
855cdf13 | 309 | int pccard_get_status(struct pcmcia_socket *s, struct pcmcia_device *p_dev, |
1a8d4663 DB |
310 | cs_status_t *status) |
311 | { | |
312 | config_t *c; | |
313 | int val; | |
314 | ||
315 | s->ops->get_status(s, &val); | |
316 | status->CardState = status->SocketState = 0; | |
317 | status->CardState |= (val & SS_DETECT) ? CS_EVENT_CARD_DETECT : 0; | |
318 | status->CardState |= (val & SS_CARDBUS) ? CS_EVENT_CB_DETECT : 0; | |
319 | status->CardState |= (val & SS_3VCARD) ? CS_EVENT_3VCARD : 0; | |
320 | status->CardState |= (val & SS_XVCARD) ? CS_EVENT_XVCARD : 0; | |
321 | if (s->state & SOCKET_SUSPEND) | |
322 | status->CardState |= CS_EVENT_PM_SUSPEND; | |
323 | if (!(s->state & SOCKET_PRESENT)) | |
324 | return CS_NO_CARD; | |
325 | ||
855cdf13 DB |
326 | c = (p_dev) ? p_dev->function_config : NULL; |
327 | ||
1a8d4663 DB |
328 | if ((c != NULL) && (c->state & CONFIG_LOCKED) && |
329 | (c->IntType & (INT_MEMORY_AND_IO | INT_ZOOMED_VIDEO))) { | |
330 | u_char reg; | |
1ae9c7d8 | 331 | if (c->CardValues & PRESENT_PIN_REPLACE) { |
1a8d4663 DB |
332 | pcmcia_read_cis_mem(s, 1, (c->ConfigBase+CISREG_PRR)>>1, 1, ®); |
333 | status->CardState |= | |
334 | (reg & PRR_WP_STATUS) ? CS_EVENT_WRITE_PROTECT : 0; | |
335 | status->CardState |= | |
336 | (reg & PRR_READY_STATUS) ? CS_EVENT_READY_CHANGE : 0; | |
337 | status->CardState |= | |
338 | (reg & PRR_BVD2_STATUS) ? CS_EVENT_BATTERY_LOW : 0; | |
339 | status->CardState |= | |
340 | (reg & PRR_BVD1_STATUS) ? CS_EVENT_BATTERY_DEAD : 0; | |
341 | } else { | |
342 | /* No PRR? Then assume we're always ready */ | |
343 | status->CardState |= CS_EVENT_READY_CHANGE; | |
344 | } | |
1ae9c7d8 | 345 | if (c->CardValues & PRESENT_EXT_STATUS) { |
1a8d4663 DB |
346 | pcmcia_read_cis_mem(s, 1, (c->ConfigBase+CISREG_ESR)>>1, 1, ®); |
347 | status->CardState |= | |
348 | (reg & ESR_REQ_ATTN) ? CS_EVENT_REQUEST_ATTENTION : 0; | |
349 | } | |
350 | return CS_SUCCESS; | |
351 | } | |
352 | status->CardState |= | |
353 | (val & SS_WRPROT) ? CS_EVENT_WRITE_PROTECT : 0; | |
354 | status->CardState |= | |
355 | (val & SS_BATDEAD) ? CS_EVENT_BATTERY_DEAD : 0; | |
356 | status->CardState |= | |
357 | (val & SS_BATWARN) ? CS_EVENT_BATTERY_LOW : 0; | |
358 | status->CardState |= | |
359 | (val & SS_READY) ? CS_EVENT_READY_CHANGE : 0; | |
360 | return CS_SUCCESS; | |
361 | } /* pccard_get_status */ | |
3448139b | 362 | |
855cdf13 | 363 | int pcmcia_get_status(struct pcmcia_device *p_dev, cs_status_t *status) |
3448139b | 364 | { |
855cdf13 | 365 | return pccard_get_status(p_dev->socket, p_dev, status); |
3448139b DB |
366 | } |
367 | EXPORT_SYMBOL(pcmcia_get_status); | |
368 | ||
1a8d4663 DB |
369 | |
370 | ||
371 | /** pcmcia_get_mem_page | |
372 | * | |
373 | * Change the card address of an already open memory window. | |
374 | */ | |
375 | int pcmcia_get_mem_page(window_handle_t win, memreq_t *req) | |
376 | { | |
377 | if ((win == NULL) || (win->magic != WINDOW_MAGIC)) | |
378 | return CS_BAD_HANDLE; | |
379 | req->Page = 0; | |
380 | req->CardOffset = win->ctl.card_start; | |
381 | return CS_SUCCESS; | |
382 | } /* pcmcia_get_mem_page */ | |
383 | EXPORT_SYMBOL(pcmcia_get_mem_page); | |
384 | ||
385 | ||
386 | int pcmcia_map_mem_page(window_handle_t win, memreq_t *req) | |
387 | { | |
388 | struct pcmcia_socket *s; | |
389 | if ((win == NULL) || (win->magic != WINDOW_MAGIC)) | |
390 | return CS_BAD_HANDLE; | |
391 | if (req->Page != 0) | |
392 | return CS_BAD_PAGE; | |
393 | s = win->sock; | |
394 | win->ctl.card_start = req->CardOffset; | |
395 | if (s->ops->set_mem_map(s, &win->ctl) != 0) | |
396 | return CS_BAD_OFFSET; | |
397 | return CS_SUCCESS; | |
398 | } /* pcmcia_map_mem_page */ | |
399 | EXPORT_SYMBOL(pcmcia_map_mem_page); | |
400 | ||
401 | ||
402 | /** pcmcia_modify_configuration | |
403 | * | |
404 | * Modify a locked socket configuration | |
405 | */ | |
2bc5a9bd | 406 | int pcmcia_modify_configuration(struct pcmcia_device *p_dev, |
1a8d4663 DB |
407 | modconf_t *mod) |
408 | { | |
409 | struct pcmcia_socket *s; | |
410 | config_t *c; | |
411 | ||
2bc5a9bd | 412 | s = p_dev->socket; |
dbb22f0d DB |
413 | c = p_dev->function_config; |
414 | ||
1a8d4663 DB |
415 | if (!(s->state & SOCKET_PRESENT)) |
416 | return CS_NO_CARD; | |
417 | if (!(c->state & CONFIG_LOCKED)) | |
418 | return CS_CONFIGURATION_LOCKED; | |
419 | ||
420 | if (mod->Attributes & CONF_IRQ_CHANGE_VALID) { | |
421 | if (mod->Attributes & CONF_ENABLE_IRQ) { | |
422 | c->Attributes |= CONF_ENABLE_IRQ; | |
423 | s->socket.io_irq = s->irq.AssignedIRQ; | |
424 | } else { | |
425 | c->Attributes &= ~CONF_ENABLE_IRQ; | |
426 | s->socket.io_irq = 0; | |
427 | } | |
428 | s->ops->set_socket(s, &s->socket); | |
429 | } | |
430 | ||
431 | if (mod->Attributes & CONF_VCC_CHANGE_VALID) | |
432 | return CS_BAD_VCC; | |
433 | ||
434 | /* We only allow changing Vpp1 and Vpp2 to the same value */ | |
435 | if ((mod->Attributes & CONF_VPP1_CHANGE_VALID) && | |
436 | (mod->Attributes & CONF_VPP2_CHANGE_VALID)) { | |
437 | if (mod->Vpp1 != mod->Vpp2) | |
438 | return CS_BAD_VPP; | |
71ed90d8 | 439 | s->socket.Vpp = mod->Vpp1; |
1a8d4663 DB |
440 | if (s->ops->set_socket(s, &s->socket)) |
441 | return CS_BAD_VPP; | |
442 | } else if ((mod->Attributes & CONF_VPP1_CHANGE_VALID) || | |
443 | (mod->Attributes & CONF_VPP2_CHANGE_VALID)) | |
444 | return CS_BAD_VPP; | |
445 | ||
446 | return CS_SUCCESS; | |
447 | } /* modify_configuration */ | |
448 | EXPORT_SYMBOL(pcmcia_modify_configuration); | |
449 | ||
450 | ||
2bc5a9bd | 451 | int pcmcia_release_configuration(struct pcmcia_device *p_dev) |
1a8d4663 DB |
452 | { |
453 | pccard_io_map io = { 0, 0, 0, 0, 1 }; | |
2bc5a9bd | 454 | struct pcmcia_socket *s = p_dev->socket; |
1a8d4663 DB |
455 | int i; |
456 | ||
2bc5a9bd | 457 | if (!(p_dev->state & CLIENT_CONFIG_LOCKED)) |
1a8d4663 | 458 | return CS_BAD_HANDLE; |
2bc5a9bd | 459 | p_dev->state &= ~CLIENT_CONFIG_LOCKED; |
1a8d4663 | 460 | |
2bc5a9bd | 461 | if (!(p_dev->state & CLIENT_STALE)) { |
dbb22f0d | 462 | config_t *c = p_dev->function_config; |
1a8d4663 DB |
463 | if (--(s->lock_count) == 0) { |
464 | s->socket.flags = SS_OUTPUT_ENA; /* Is this correct? */ | |
465 | s->socket.Vpp = 0; | |
466 | s->socket.io_irq = 0; | |
467 | s->ops->set_socket(s, &s->socket); | |
468 | } | |
469 | if (c->state & CONFIG_IO_REQ) | |
470 | for (i = 0; i < MAX_IO_WIN; i++) { | |
471 | if (s->io[i].NumPorts == 0) | |
472 | continue; | |
473 | s->io[i].Config--; | |
474 | if (s->io[i].Config != 0) | |
475 | continue; | |
476 | io.map = i; | |
477 | s->ops->set_io_map(s, &io); | |
478 | } | |
479 | c->state &= ~CONFIG_LOCKED; | |
480 | } | |
481 | ||
482 | return CS_SUCCESS; | |
483 | } /* pcmcia_release_configuration */ | |
484 | EXPORT_SYMBOL(pcmcia_release_configuration); | |
485 | ||
486 | ||
487 | /** pcmcia_release_io | |
488 | * | |
489 | * Release_io() releases the I/O ranges allocated by a client. This | |
490 | * may be invoked some time after a card ejection has already dumped | |
491 | * the actual socket configuration, so if the client is "stale", we | |
492 | * don't bother checking the port ranges against the current socket | |
493 | * values. | |
494 | */ | |
2bc5a9bd | 495 | int pcmcia_release_io(struct pcmcia_device *p_dev, io_req_t *req) |
1a8d4663 | 496 | { |
2bc5a9bd | 497 | struct pcmcia_socket *s = p_dev->socket; |
1a8d4663 | 498 | |
2bc5a9bd | 499 | if (!(p_dev->state & CLIENT_IO_REQ)) |
1a8d4663 | 500 | return CS_BAD_HANDLE; |
2bc5a9bd | 501 | p_dev->state &= ~CLIENT_IO_REQ; |
1a8d4663 | 502 | |
2bc5a9bd | 503 | if (!(p_dev->state & CLIENT_STALE)) { |
dbb22f0d | 504 | config_t *c = p_dev->function_config; |
1a8d4663 DB |
505 | if (c->state & CONFIG_LOCKED) |
506 | return CS_CONFIGURATION_LOCKED; | |
507 | if ((c->io.BasePort1 != req->BasePort1) || | |
508 | (c->io.NumPorts1 != req->NumPorts1) || | |
509 | (c->io.BasePort2 != req->BasePort2) || | |
510 | (c->io.NumPorts2 != req->NumPorts2)) | |
511 | return CS_BAD_ARGS; | |
512 | c->state &= ~CONFIG_IO_REQ; | |
513 | } | |
514 | ||
515 | release_io_space(s, req->BasePort1, req->NumPorts1); | |
516 | if (req->NumPorts2) | |
517 | release_io_space(s, req->BasePort2, req->NumPorts2); | |
518 | ||
519 | return CS_SUCCESS; | |
520 | } /* pcmcia_release_io */ | |
521 | EXPORT_SYMBOL(pcmcia_release_io); | |
522 | ||
523 | ||
2bc5a9bd | 524 | int pcmcia_release_irq(struct pcmcia_device *p_dev, irq_req_t *req) |
1a8d4663 | 525 | { |
2bc5a9bd DB |
526 | struct pcmcia_socket *s = p_dev->socket; |
527 | if (!(p_dev->state & CLIENT_IRQ_REQ)) | |
1a8d4663 | 528 | return CS_BAD_HANDLE; |
2bc5a9bd | 529 | p_dev->state &= ~CLIENT_IRQ_REQ; |
1a8d4663 | 530 | |
2bc5a9bd | 531 | if (!(p_dev->state & CLIENT_STALE)) { |
dbb22f0d | 532 | config_t *c= p_dev->function_config; |
1a8d4663 DB |
533 | if (c->state & CONFIG_LOCKED) |
534 | return CS_CONFIGURATION_LOCKED; | |
535 | if (c->irq.Attributes != req->Attributes) | |
536 | return CS_BAD_ATTRIBUTE; | |
537 | if (s->irq.AssignedIRQ != req->AssignedIRQ) | |
538 | return CS_BAD_IRQ; | |
539 | if (--s->irq.Config == 0) { | |
540 | c->state &= ~CONFIG_IRQ_REQ; | |
541 | s->irq.AssignedIRQ = 0; | |
542 | } | |
543 | } | |
544 | ||
545 | if (req->Attributes & IRQ_HANDLE_PRESENT) { | |
546 | free_irq(req->AssignedIRQ, req->Instance); | |
547 | } | |
548 | ||
549 | #ifdef CONFIG_PCMCIA_PROBE | |
550 | pcmcia_used_irq[req->AssignedIRQ]--; | |
551 | #endif | |
552 | ||
553 | return CS_SUCCESS; | |
554 | } /* pcmcia_release_irq */ | |
555 | EXPORT_SYMBOL(pcmcia_release_irq); | |
556 | ||
557 | ||
558 | int pcmcia_release_window(window_handle_t win) | |
559 | { | |
560 | struct pcmcia_socket *s; | |
561 | ||
562 | if ((win == NULL) || (win->magic != WINDOW_MAGIC)) | |
563 | return CS_BAD_HANDLE; | |
564 | s = win->sock; | |
565 | if (!(win->handle->state & CLIENT_WIN_REQ(win->index))) | |
566 | return CS_BAD_HANDLE; | |
567 | ||
568 | /* Shut down memory window */ | |
569 | win->ctl.flags &= ~MAP_ACTIVE; | |
570 | s->ops->set_mem_map(s, &win->ctl); | |
571 | s->state &= ~SOCKET_WIN_REQ(win->index); | |
572 | ||
573 | /* Release system memory */ | |
574 | if (win->ctl.res) { | |
575 | release_resource(win->ctl.res); | |
576 | kfree(win->ctl.res); | |
577 | win->ctl.res = NULL; | |
578 | } | |
579 | win->handle->state &= ~CLIENT_WIN_REQ(win->index); | |
580 | ||
581 | win->magic = 0; | |
582 | ||
583 | return CS_SUCCESS; | |
584 | } /* pcmcia_release_window */ | |
585 | EXPORT_SYMBOL(pcmcia_release_window); | |
586 | ||
587 | ||
2bc5a9bd | 588 | int pcmcia_request_configuration(struct pcmcia_device *p_dev, |
1a8d4663 DB |
589 | config_req_t *req) |
590 | { | |
591 | int i; | |
592 | u_int base; | |
2bc5a9bd | 593 | struct pcmcia_socket *s = p_dev->socket; |
1a8d4663 DB |
594 | config_t *c; |
595 | pccard_io_map iomap; | |
596 | ||
1a8d4663 DB |
597 | if (!(s->state & SOCKET_PRESENT)) |
598 | return CS_NO_CARD; | |
599 | ||
1a8d4663 DB |
600 | if (req->IntType & INT_CARDBUS) |
601 | return CS_UNSUPPORTED_MODE; | |
dbb22f0d | 602 | c = p_dev->function_config; |
1a8d4663 DB |
603 | if (c->state & CONFIG_LOCKED) |
604 | return CS_CONFIGURATION_LOCKED; | |
605 | ||
606 | /* Do power control. We don't allow changes in Vcc. */ | |
607 | if (s->socket.Vcc != req->Vcc) | |
608 | return CS_BAD_VCC; | |
609 | if (req->Vpp1 != req->Vpp2) | |
610 | return CS_BAD_VPP; | |
611 | s->socket.Vpp = req->Vpp1; | |
612 | if (s->ops->set_socket(s, &s->socket)) | |
613 | return CS_BAD_VPP; | |
614 | ||
1a8d4663 DB |
615 | /* Pick memory or I/O card, DMA mode, interrupt */ |
616 | c->IntType = req->IntType; | |
617 | c->Attributes = req->Attributes; | |
618 | if (req->IntType & INT_MEMORY_AND_IO) | |
619 | s->socket.flags |= SS_IOCARD; | |
620 | if (req->IntType & INT_ZOOMED_VIDEO) | |
621 | s->socket.flags |= SS_ZVCARD | SS_IOCARD; | |
622 | if (req->Attributes & CONF_ENABLE_DMA) | |
623 | s->socket.flags |= SS_DMA_MODE; | |
624 | if (req->Attributes & CONF_ENABLE_SPKR) | |
625 | s->socket.flags |= SS_SPKR_ENA; | |
626 | if (req->Attributes & CONF_ENABLE_IRQ) | |
627 | s->socket.io_irq = s->irq.AssignedIRQ; | |
628 | else | |
629 | s->socket.io_irq = 0; | |
630 | s->ops->set_socket(s, &s->socket); | |
631 | s->lock_count++; | |
632 | ||
633 | /* Set up CIS configuration registers */ | |
634 | base = c->ConfigBase = req->ConfigBase; | |
1ae9c7d8 | 635 | c->CardValues = req->Present; |
1a8d4663 DB |
636 | if (req->Present & PRESENT_COPY) { |
637 | c->Copy = req->Copy; | |
638 | pcmcia_write_cis_mem(s, 1, (base + CISREG_SCR)>>1, 1, &c->Copy); | |
639 | } | |
640 | if (req->Present & PRESENT_OPTION) { | |
641 | if (s->functions == 1) { | |
642 | c->Option = req->ConfigIndex & COR_CONFIG_MASK; | |
643 | } else { | |
644 | c->Option = req->ConfigIndex & COR_MFC_CONFIG_MASK; | |
645 | c->Option |= COR_FUNC_ENA|COR_IREQ_ENA; | |
646 | if (req->Present & PRESENT_IOBASE_0) | |
647 | c->Option |= COR_ADDR_DECODE; | |
648 | } | |
649 | if (c->state & CONFIG_IRQ_REQ) | |
650 | if (!(c->irq.Attributes & IRQ_FORCED_PULSE)) | |
651 | c->Option |= COR_LEVEL_REQ; | |
652 | pcmcia_write_cis_mem(s, 1, (base + CISREG_COR)>>1, 1, &c->Option); | |
653 | mdelay(40); | |
654 | } | |
655 | if (req->Present & PRESENT_STATUS) { | |
656 | c->Status = req->Status; | |
657 | pcmcia_write_cis_mem(s, 1, (base + CISREG_CCSR)>>1, 1, &c->Status); | |
658 | } | |
659 | if (req->Present & PRESENT_PIN_REPLACE) { | |
660 | c->Pin = req->Pin; | |
661 | pcmcia_write_cis_mem(s, 1, (base + CISREG_PRR)>>1, 1, &c->Pin); | |
662 | } | |
663 | if (req->Present & PRESENT_EXT_STATUS) { | |
664 | c->ExtStatus = req->ExtStatus; | |
665 | pcmcia_write_cis_mem(s, 1, (base + CISREG_ESR)>>1, 1, &c->ExtStatus); | |
666 | } | |
667 | if (req->Present & PRESENT_IOBASE_0) { | |
668 | u_char b = c->io.BasePort1 & 0xff; | |
669 | pcmcia_write_cis_mem(s, 1, (base + CISREG_IOBASE_0)>>1, 1, &b); | |
670 | b = (c->io.BasePort1 >> 8) & 0xff; | |
671 | pcmcia_write_cis_mem(s, 1, (base + CISREG_IOBASE_1)>>1, 1, &b); | |
672 | } | |
673 | if (req->Present & PRESENT_IOSIZE) { | |
674 | u_char b = c->io.NumPorts1 + c->io.NumPorts2 - 1; | |
675 | pcmcia_write_cis_mem(s, 1, (base + CISREG_IOSIZE)>>1, 1, &b); | |
676 | } | |
677 | ||
678 | /* Configure I/O windows */ | |
679 | if (c->state & CONFIG_IO_REQ) { | |
680 | iomap.speed = io_speed; | |
681 | for (i = 0; i < MAX_IO_WIN; i++) | |
682 | if (s->io[i].NumPorts != 0) { | |
683 | iomap.map = i; | |
684 | iomap.flags = MAP_ACTIVE; | |
685 | switch (s->io[i].Attributes & IO_DATA_PATH_WIDTH) { | |
686 | case IO_DATA_PATH_WIDTH_16: | |
687 | iomap.flags |= MAP_16BIT; break; | |
688 | case IO_DATA_PATH_WIDTH_AUTO: | |
689 | iomap.flags |= MAP_AUTOSZ; break; | |
690 | default: | |
691 | break; | |
692 | } | |
693 | iomap.start = s->io[i].BasePort; | |
694 | iomap.stop = iomap.start + s->io[i].NumPorts - 1; | |
695 | s->ops->set_io_map(s, &iomap); | |
696 | s->io[i].Config++; | |
697 | } | |
698 | } | |
699 | ||
700 | c->state |= CONFIG_LOCKED; | |
2bc5a9bd | 701 | p_dev->state |= CLIENT_CONFIG_LOCKED; |
1a8d4663 DB |
702 | return CS_SUCCESS; |
703 | } /* pcmcia_request_configuration */ | |
704 | EXPORT_SYMBOL(pcmcia_request_configuration); | |
705 | ||
706 | ||
707 | /** pcmcia_request_io | |
708 | * | |
709 | * Request_io() reserves ranges of port addresses for a socket. | |
710 | * I have not implemented range sharing or alias addressing. | |
711 | */ | |
2bc5a9bd | 712 | int pcmcia_request_io(struct pcmcia_device *p_dev, io_req_t *req) |
1a8d4663 | 713 | { |
2bc5a9bd | 714 | struct pcmcia_socket *s = p_dev->socket; |
1a8d4663 DB |
715 | config_t *c; |
716 | ||
1a8d4663 DB |
717 | if (!(s->state & SOCKET_PRESENT)) |
718 | return CS_NO_CARD; | |
719 | ||
1a8d4663 DB |
720 | if (!req) |
721 | return CS_UNSUPPORTED_MODE; | |
dbb22f0d | 722 | c = p_dev->function_config; |
1a8d4663 DB |
723 | if (c->state & CONFIG_LOCKED) |
724 | return CS_CONFIGURATION_LOCKED; | |
725 | if (c->state & CONFIG_IO_REQ) | |
726 | return CS_IN_USE; | |
727 | if (req->Attributes1 & (IO_SHARED | IO_FORCE_ALIAS_ACCESS)) | |
728 | return CS_BAD_ATTRIBUTE; | |
729 | if ((req->NumPorts2 > 0) && | |
730 | (req->Attributes2 & (IO_SHARED | IO_FORCE_ALIAS_ACCESS))) | |
731 | return CS_BAD_ATTRIBUTE; | |
732 | ||
733 | if (alloc_io_space(s, req->Attributes1, &req->BasePort1, | |
734 | req->NumPorts1, req->IOAddrLines)) | |
735 | return CS_IN_USE; | |
736 | ||
737 | if (req->NumPorts2) { | |
738 | if (alloc_io_space(s, req->Attributes2, &req->BasePort2, | |
739 | req->NumPorts2, req->IOAddrLines)) { | |
740 | release_io_space(s, req->BasePort1, req->NumPorts1); | |
741 | return CS_IN_USE; | |
742 | } | |
743 | } | |
744 | ||
745 | c->io = *req; | |
746 | c->state |= CONFIG_IO_REQ; | |
2bc5a9bd | 747 | p_dev->state |= CLIENT_IO_REQ; |
1a8d4663 DB |
748 | return CS_SUCCESS; |
749 | } /* pcmcia_request_io */ | |
750 | EXPORT_SYMBOL(pcmcia_request_io); | |
751 | ||
752 | ||
753 | /** pcmcia_request_irq | |
754 | * | |
755 | * Request_irq() reserves an irq for this client. | |
756 | * | |
757 | * Also, since Linux only reserves irq's when they are actually | |
758 | * hooked, we don't guarantee that an irq will still be available | |
759 | * when the configuration is locked. Now that I think about it, | |
760 | * there might be a way to fix this using a dummy handler. | |
761 | */ | |
762 | ||
763 | #ifdef CONFIG_PCMCIA_PROBE | |
764 | static irqreturn_t test_action(int cpl, void *dev_id, struct pt_regs *regs) | |
765 | { | |
766 | return IRQ_NONE; | |
767 | } | |
768 | #endif | |
769 | ||
2bc5a9bd | 770 | int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req) |
1a8d4663 | 771 | { |
2bc5a9bd | 772 | struct pcmcia_socket *s = p_dev->socket; |
1a8d4663 DB |
773 | config_t *c; |
774 | int ret = CS_IN_USE, irq = 0; | |
1a8d4663 | 775 | |
1a8d4663 DB |
776 | if (!(s->state & SOCKET_PRESENT)) |
777 | return CS_NO_CARD; | |
dbb22f0d | 778 | c = p_dev->function_config; |
1a8d4663 DB |
779 | if (c->state & CONFIG_LOCKED) |
780 | return CS_CONFIGURATION_LOCKED; | |
781 | if (c->state & CONFIG_IRQ_REQ) | |
782 | return CS_IN_USE; | |
783 | ||
784 | #ifdef CONFIG_PCMCIA_PROBE | |
785 | if (s->irq.AssignedIRQ != 0) { | |
786 | /* If the interrupt is already assigned, it must be the same */ | |
787 | irq = s->irq.AssignedIRQ; | |
788 | } else { | |
789 | int try; | |
790 | u32 mask = s->irq_mask; | |
a1b274fb | 791 | void *data = &p_dev->dev.driver; /* something unique to this device */ |
1a8d4663 DB |
792 | |
793 | for (try = 0; try < 64; try++) { | |
794 | irq = try % 32; | |
795 | ||
796 | /* marked as available by driver, and not blocked by userspace? */ | |
797 | if (!((mask >> irq) & 1)) | |
798 | continue; | |
799 | ||
800 | /* avoid an IRQ which is already used by a PCMCIA card */ | |
801 | if ((try < 32) && pcmcia_used_irq[irq]) | |
802 | continue; | |
803 | ||
804 | /* register the correct driver, if possible, of check whether | |
805 | * registering a dummy handle works, i.e. if the IRQ isn't | |
806 | * marked as used by the kernel resource management core */ | |
807 | ret = request_irq(irq, | |
808 | (req->Attributes & IRQ_HANDLE_PRESENT) ? req->Handler : test_action, | |
809 | ((req->Attributes & IRQ_TYPE_DYNAMIC_SHARING) || | |
810 | (s->functions > 1) || | |
811 | (irq == s->pci_irq)) ? SA_SHIRQ : 0, | |
bd65a685 | 812 | p_dev->devname, |
1a8d4663 DB |
813 | (req->Attributes & IRQ_HANDLE_PRESENT) ? req->Instance : data); |
814 | if (!ret) { | |
815 | if (!(req->Attributes & IRQ_HANDLE_PRESENT)) | |
816 | free_irq(irq, data); | |
817 | break; | |
818 | } | |
819 | } | |
820 | } | |
821 | #endif | |
c181e0e0 DR |
822 | /* only assign PCI irq if no IRQ already assigned */ |
823 | if (ret && !s->irq.AssignedIRQ) { | |
1a8d4663 DB |
824 | if (!s->pci_irq) |
825 | return ret; | |
826 | irq = s->pci_irq; | |
827 | } | |
828 | ||
829 | if (ret && req->Attributes & IRQ_HANDLE_PRESENT) { | |
830 | if (request_irq(irq, req->Handler, | |
831 | ((req->Attributes & IRQ_TYPE_DYNAMIC_SHARING) || | |
832 | (s->functions > 1) || | |
833 | (irq == s->pci_irq)) ? SA_SHIRQ : 0, | |
bd65a685 | 834 | p_dev->devname, req->Instance)) |
1a8d4663 DB |
835 | return CS_IN_USE; |
836 | } | |
837 | ||
838 | c->irq.Attributes = req->Attributes; | |
839 | s->irq.AssignedIRQ = req->AssignedIRQ = irq; | |
840 | s->irq.Config++; | |
841 | ||
842 | c->state |= CONFIG_IRQ_REQ; | |
2bc5a9bd | 843 | p_dev->state |= CLIENT_IRQ_REQ; |
1a8d4663 DB |
844 | |
845 | #ifdef CONFIG_PCMCIA_PROBE | |
846 | pcmcia_used_irq[irq]++; | |
847 | #endif | |
848 | ||
849 | return CS_SUCCESS; | |
850 | } /* pcmcia_request_irq */ | |
851 | EXPORT_SYMBOL(pcmcia_request_irq); | |
852 | ||
853 | ||
854 | /** pcmcia_request_window | |
855 | * | |
856 | * Request_window() establishes a mapping between card memory space | |
857 | * and system memory space. | |
858 | */ | |
2bc5a9bd | 859 | int pcmcia_request_window(struct pcmcia_device **p_dev, win_req_t *req, window_handle_t *wh) |
1a8d4663 | 860 | { |
2bc5a9bd | 861 | struct pcmcia_socket *s = (*p_dev)->socket; |
1a8d4663 DB |
862 | window_t *win; |
863 | u_long align; | |
864 | int w; | |
865 | ||
1a8d4663 DB |
866 | if (!(s->state & SOCKET_PRESENT)) |
867 | return CS_NO_CARD; | |
868 | if (req->Attributes & (WIN_PAGED | WIN_SHARED)) | |
869 | return CS_BAD_ATTRIBUTE; | |
870 | ||
871 | /* Window size defaults to smallest available */ | |
872 | if (req->Size == 0) | |
873 | req->Size = s->map_size; | |
874 | align = (((s->features & SS_CAP_MEM_ALIGN) || | |
875 | (req->Attributes & WIN_STRICT_ALIGN)) ? | |
876 | req->Size : s->map_size); | |
877 | if (req->Size & (s->map_size-1)) | |
878 | return CS_BAD_SIZE; | |
879 | if ((req->Base && (s->features & SS_CAP_STATIC_MAP)) || | |
880 | (req->Base & (align-1))) | |
881 | return CS_BAD_BASE; | |
882 | if (req->Base) | |
883 | align = 0; | |
884 | ||
885 | /* Allocate system memory window */ | |
886 | for (w = 0; w < MAX_WIN; w++) | |
887 | if (!(s->state & SOCKET_WIN_REQ(w))) break; | |
888 | if (w == MAX_WIN) | |
889 | return CS_OUT_OF_RESOURCE; | |
890 | ||
891 | win = &s->win[w]; | |
892 | win->magic = WINDOW_MAGIC; | |
893 | win->index = w; | |
2bc5a9bd | 894 | win->handle = *p_dev; |
1a8d4663 DB |
895 | win->sock = s; |
896 | ||
897 | if (!(s->features & SS_CAP_STATIC_MAP)) { | |
898 | win->ctl.res = pcmcia_find_mem_region(req->Base, req->Size, align, | |
899 | (req->Attributes & WIN_MAP_BELOW_1MB), s); | |
900 | if (!win->ctl.res) | |
901 | return CS_IN_USE; | |
902 | } | |
2bc5a9bd | 903 | (*p_dev)->state |= CLIENT_WIN_REQ(w); |
1a8d4663 DB |
904 | |
905 | /* Configure the socket controller */ | |
906 | win->ctl.map = w+1; | |
907 | win->ctl.flags = 0; | |
908 | win->ctl.speed = req->AccessSpeed; | |
909 | if (req->Attributes & WIN_MEMORY_TYPE) | |
910 | win->ctl.flags |= MAP_ATTRIB; | |
911 | if (req->Attributes & WIN_ENABLE) | |
912 | win->ctl.flags |= MAP_ACTIVE; | |
913 | if (req->Attributes & WIN_DATA_WIDTH_16) | |
914 | win->ctl.flags |= MAP_16BIT; | |
915 | if (req->Attributes & WIN_USE_WAIT) | |
916 | win->ctl.flags |= MAP_USE_WAIT; | |
917 | win->ctl.card_start = 0; | |
918 | if (s->ops->set_mem_map(s, &win->ctl) != 0) | |
919 | return CS_BAD_ARGS; | |
920 | s->state |= SOCKET_WIN_REQ(w); | |
921 | ||
922 | /* Return window handle */ | |
923 | if (s->features & SS_CAP_STATIC_MAP) { | |
924 | req->Base = win->ctl.static_start; | |
925 | } else { | |
926 | req->Base = win->ctl.res->start; | |
927 | } | |
928 | *wh = win; | |
929 | ||
930 | return CS_SUCCESS; | |
931 | } /* pcmcia_request_window */ | |
932 | EXPORT_SYMBOL(pcmcia_request_window); |