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1 | /* libusb/ppdev connector for XILINX impact | |
2 | * | |
3 | * Copyright (c) 2007 Michael Gernoth <michael@gernoth.net> | |
4 | * | |
5 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
6 | * of this software and associated documentation files (the "Software"), to | |
7 | * deal in the Software without restriction, including without limitation the | |
8 | * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or | |
9 | * sell copies of the Software, and to permit persons to whom the Software is | |
10 | * furnished to do so, subject to the following conditions: | |
11 | * | |
12 | * The above copyright notice and this permission notice shall be included in | |
13 | * all copies or substantial portions of the Software. | |
14 | * | |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
18 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS | |
21 | * IN THE SOFTWARE. | |
22 | */ | |
23 | ||
24 | #define _GNU_SOURCE 1 | |
25 | ||
26 | #include <dlfcn.h> | |
27 | #include <stdarg.h> | |
28 | #include <stdlib.h> | |
29 | #include <string.h> | |
30 | #include <unistd.h> | |
31 | #include <fcntl.h> | |
32 | #include <sys/types.h> | |
33 | #include <sys/stat.h> | |
34 | #include <sys/time.h> | |
35 | #include <stdio.h> | |
36 | #include <usb.h> | |
37 | #include <signal.h> | |
38 | #include <errno.h> | |
39 | #include <inttypes.h> | |
40 | #include <sys/ioctl.h> | |
41 | #include <sys/utsname.h> | |
42 | #include <bits/wordsize.h> | |
43 | #include "usb-driver.h" | |
44 | #include "config.h" | |
45 | #include "xpcu.h" | |
46 | ||
47 | static int (*ioctl_func) (int, int, void *) = NULL; | |
48 | static int windrvrfd = -1; | |
49 | static unsigned long ppbase = 0; | |
50 | static unsigned long ecpbase = 0; | |
51 | static struct parport_config *pport = NULL; | |
52 | static struct xpcu_s *xpcu = NULL; | |
53 | static FILE *modulesfp = NULL; | |
54 | static FILE *baseaddrfp = NULL; | |
55 | static int baseaddrnum = 0; | |
56 | static int modules_read = 0; | |
57 | ||
58 | #define NO_WINDRVR 1 | |
59 | ||
60 | void hexdump(unsigned char *buf, int len) { | |
61 | int i; | |
62 | ||
63 | for(i=0; i<len; i++) { | |
64 | fprintf(stderr,"%02x ", buf[i]); | |
65 | if ((i % 16) == 15) | |
66 | fprintf(stderr,"\n"); | |
67 | } | |
68 | fprintf(stderr,"\n"); | |
69 | } | |
70 | ||
71 | ||
72 | static int do_wdioctl(int fd, unsigned int request, unsigned char *wdioctl) { | |
73 | struct header_struct* wdheader = (struct header_struct*)wdioctl; | |
74 | struct version_struct *version; | |
75 | int ret = 0; | |
76 | ||
77 | if (wdheader->magic != MAGIC) { | |
78 | fprintf(stderr,"!!!ERROR: magic header does not match!!!\n"); | |
79 | return (*ioctl_func) (fd, request, wdioctl); | |
80 | } | |
81 | ||
82 | switch(request & ~(0xc0000000)) { | |
83 | case VERSION: | |
84 | version = (struct version_struct*)(wdheader->data); | |
85 | strcpy(version->version, "libusb-driver.so version: " USB_DRIVER_VERSION); | |
86 | version->versionul = 802; | |
87 | DPRINTF("VERSION\n"); | |
88 | break; | |
89 | ||
90 | case LICENSE: | |
91 | DPRINTF("LICENSE\n"); | |
92 | break; | |
93 | ||
94 | case CARD_REGISTER_OLD: | |
95 | case CARD_REGISTER: | |
96 | DPRINTF("CARD_REGISTER\n"); | |
97 | { | |
98 | struct card_register* cr = (struct card_register*)(wdheader->data); | |
99 | ||
100 | DPRINTF("-> Items: %lu, Addr: 0x%lx, bytes: %lu, bar: %lu\n", | |
101 | cr->Card.dwItems, | |
102 | (unsigned long)cr->Card.Item[0].I.IO.dwAddr, | |
103 | cr->Card.Item[0].I.IO.dwBytes, | |
104 | cr->Card.Item[0].I.IO.dwBar); | |
105 | ||
106 | DPRINTF("-> Items: %lu, Addr: 0x%lx, bytes: %lu, bar: %lu\n", | |
107 | cr->Card.dwItems, | |
108 | (unsigned long)cr->Card.Item[1].I.IO.dwAddr, | |
109 | cr->Card.Item[1].I.IO.dwBytes, | |
110 | cr->Card.Item[1].I.IO.dwBar); | |
111 | #ifndef NO_WINDRVR | |
112 | ret = (*ioctl_func) (fd, request, wdioctl); | |
113 | #else | |
114 | ||
115 | pport = config_get((unsigned long)cr->Card.Item[0].I.IO.dwAddr / 0x10); | |
116 | if (!pport) | |
117 | break; | |
118 | ||
119 | ret = pport->open((unsigned long)cr->Card.Item[0].I.IO.dwAddr / 0x10); | |
120 | ||
121 | ppbase = (unsigned long)cr->Card.Item[0].I.IO.dwAddr; | |
122 | ||
123 | if (cr->Card.dwItems > 1 && cr->Card.Item[1].I.IO.dwAddr) | |
124 | ecpbase = (unsigned long)cr->Card.Item[1].I.IO.dwAddr; | |
125 | ||
126 | if (ret >= 0) { | |
127 | cr->hCard = ret; | |
128 | } else { | |
129 | cr->hCard = 0; | |
130 | } | |
131 | #endif | |
132 | DPRINTF("<-hCard: %lu\n", cr->hCard); | |
133 | } | |
134 | break; | |
135 | ||
136 | case USB_TRANSFER: | |
137 | DPRINTF("USB_TRANSFER\n"); | |
138 | { | |
139 | struct usb_transfer *ut = (struct usb_transfer*)(wdheader->data); | |
140 | ||
141 | #ifdef DEBUG | |
142 | DPRINTF("-> unique: 0x%lx, pipe: %lu, read: %lu, options: %lx, size: %lu, timeout: %lx\n", | |
143 | ut->dwUniqueID, ut->dwPipeNum, ut->fRead, | |
144 | ut->dwOptions, ut->dwBufferSize, ut->dwTimeout); | |
145 | if (ut->dwPipeNum == 0) { | |
146 | DPRINTF("-> setup packet: "); | |
147 | hexdump(ut->SetupPacket, 8); | |
148 | } | |
149 | ||
150 | if (!ut->fRead && ut->dwBufferSize) | |
151 | { | |
152 | hexdump(ut->pBuffer, ut->dwBufferSize); | |
153 | } | |
154 | #endif | |
155 | ||
156 | #ifndef NO_WINDRVR | |
157 | ret = (*ioctl_func) (fd, request, wdioctl); | |
158 | #else | |
159 | xpcu_transfer(xpcu, ut); | |
160 | #endif | |
161 | ||
162 | #ifdef DEBUG | |
163 | DPRINTF("Transferred: %lu (%s)\n",ut->dwBytesTransferred, (ut->fRead?"read":"write")); | |
164 | if (ut->fRead && ut->dwBytesTransferred) | |
165 | { | |
166 | DPRINTF("<- Read: "); | |
167 | hexdump(ut->pBuffer, ut->dwBytesTransferred); | |
168 | } | |
169 | #endif | |
170 | } | |
171 | break; | |
172 | ||
173 | case INT_ENABLE_OLD: | |
174 | case INT_ENABLE: | |
175 | DPRINTF("INT_ENABLE\n"); | |
176 | { | |
177 | struct interrupt *it = (struct interrupt*)(wdheader->data); | |
178 | ||
179 | DPRINTF("-> Handle: 0x%lx, Options: %lx, ncmds: %lu, enableok: %lu, count: %lu, lost: %lu, stopped: %lu\n", | |
180 | it->hInterrupt, it->dwOptions, | |
181 | it->dwCmds, it->fEnableOk, it->dwCounter, | |
182 | it->dwLost, it->fStopped); | |
183 | ||
184 | #ifndef NO_WINDRVR | |
185 | ret = (*ioctl_func) (fd, request, wdioctl); | |
186 | #else | |
187 | xpcu_int_state(xpcu, it, ENABLE_INTERRUPT); | |
188 | #endif | |
189 | ||
190 | DPRINTF("<- Handle: 0x%lx, Options: %lx, ncmds: %lu, enableok: %lu, count: %lu, lost: %lu, stopped: %lu\n", | |
191 | it->hInterrupt, it->dwOptions, | |
192 | it->dwCmds, it->fEnableOk, it->dwCounter, | |
193 | it->dwLost, it->fStopped); | |
194 | } | |
195 | ||
196 | break; | |
197 | ||
198 | case INT_DISABLE: | |
199 | DPRINTF("INT_DISABLE\n"); | |
200 | { | |
201 | struct interrupt *it = (struct interrupt*)(wdheader->data); | |
202 | ||
203 | DPRINTF("-> Handle: 0x%lx, Options: %lx, ncmds: %lu, enableok: %lu, count: %lu, lost: %lu, stopped: %lu\n", | |
204 | it->hInterrupt, it->dwOptions, | |
205 | it->dwCmds, it->fEnableOk, it->dwCounter, | |
206 | it->dwLost, it->fStopped); | |
207 | #ifndef NO_WINDRVR | |
208 | ret = (*ioctl_func) (fd, request, wdioctl); | |
209 | #else | |
210 | xpcu_int_state(xpcu, it, DISABLE_INTERRUPT); | |
211 | #endif | |
212 | DPRINTF("<- Handle: 0x%lx, Options: %lx, ncmds: %lu, enableok: %lu, count: %lu, lost: %lu, stopped: %lu\n", | |
213 | it->hInterrupt, it->dwOptions, | |
214 | it->dwCmds, it->fEnableOk, it->dwCounter, | |
215 | it->dwLost, it->fStopped); | |
216 | } | |
217 | break; | |
218 | ||
219 | case USB_SET_INTERFACE: | |
220 | DPRINTF("USB_SET_INTERFACE\n"); | |
221 | { | |
222 | struct usb_set_interface *usi = (struct usb_set_interface*)(wdheader->data); | |
223 | ||
224 | DPRINTF("-> unique: 0x%lx, interfacenum: %lu, alternatesetting: %lu, options: %lx\n", | |
225 | usi->dwUniqueID, usi->dwInterfaceNum, | |
226 | usi->dwAlternateSetting, usi->dwOptions); | |
227 | #ifndef NO_WINDRVR | |
228 | ret = (*ioctl_func) (fd, request, wdioctl); | |
229 | #else | |
230 | xpcu_set_interface(xpcu, usi); | |
231 | #endif | |
232 | DPRINTF("<- unique: 0x%lx, interfacenum: %lu, alternatesetting: %lu, options: %lx\n", | |
233 | usi->dwUniqueID, usi->dwInterfaceNum, | |
234 | usi->dwAlternateSetting, usi->dwOptions); | |
235 | } | |
236 | break; | |
237 | ||
238 | case USB_GET_DEVICE_DATA_OLD: | |
239 | case USB_GET_DEVICE_DATA: | |
240 | DPRINTF("USB_GET_DEVICE_DATA\n"); | |
241 | { | |
242 | struct usb_get_device_data *ugdd = (struct usb_get_device_data*)(wdheader->data); | |
243 | ||
244 | DPRINTF("-> unique: 0x%lx, bytes: %lu, options: %lx\n", | |
245 | ugdd->dwUniqueID, ugdd->dwBytes, | |
246 | ugdd->dwOptions); | |
247 | ||
248 | ugdd->dwBytes = xpcu_deviceinfo(xpcu, ugdd); | |
249 | ||
250 | } | |
251 | break; | |
252 | ||
253 | case EVENT_REGISTER_OLD: | |
254 | case EVENT_REGISTER: | |
255 | DPRINTF("EVENT_REGISTER\n"); | |
256 | { | |
257 | struct event *e = (struct event*)(wdheader->data); | |
258 | #ifdef DEBUG | |
259 | int i; | |
260 | #endif | |
261 | ||
262 | DPRINTF("-> handle: 0x%lx, action: %lu, status: %lu, eventid: %lu, cardtype: %lu, kplug: %lu, options: %lu, dev: %lx:%lx, unique: 0x%lx, ver: %lu, nummatch: %lu\n", | |
263 | e->handle, e->dwAction, | |
264 | e->dwStatus, e->dwEventId, e->dwCardType, | |
265 | e->hKernelPlugIn, e->dwOptions, | |
266 | e->u.Usb.deviceId.dwVendorId, | |
267 | e->u.Usb.deviceId.dwProductId, | |
268 | e->u.Usb.dwUniqueID, e->dwEventVer, | |
269 | e->dwNumMatchTables); | |
270 | ||
271 | #ifndef NO_WINDRVR | |
272 | ret = (*ioctl_func) (fd, request, wdioctl); | |
273 | #else | |
274 | xpcu = xpcu_find(e); | |
275 | #endif | |
276 | ||
277 | #ifdef DEBUG | |
278 | DPRINTF("<- handle: 0x%lx, action: %lu, status: %lu, eventid: %lu, cardtype: %lu, kplug: %lu, options: %lu, dev: %lx:%lx, unique: 0x%lx, ver: %lu, nummatch: %lu\n", | |
279 | e->handle, e->dwAction, | |
280 | e->dwStatus, e->dwEventId, e->dwCardType, | |
281 | e->hKernelPlugIn, e->dwOptions, | |
282 | e->u.Usb.deviceId.dwVendorId, | |
283 | e->u.Usb.deviceId.dwProductId, | |
284 | e->u.Usb.dwUniqueID, e->dwEventVer, | |
285 | e->dwNumMatchTables); | |
286 | ||
287 | for (i = 0; i < e->dwNumMatchTables; i++) | |
288 | DPRINTF("match: dev: %04x:%04x, class: %x, subclass: %x, intclass: %x, intsubclass: %x, intproto: %x\n", | |
289 | e->matchTables[i].VendorId, | |
290 | e->matchTables[i].ProductId, | |
291 | e->matchTables[i].bDeviceClass, | |
292 | e->matchTables[i].bDeviceSubClass, | |
293 | e->matchTables[i].bInterfaceClass, | |
294 | e->matchTables[i].bInterfaceSubClass, | |
295 | e->matchTables[i].bInterfaceProtocol); | |
296 | #endif | |
297 | } | |
298 | break; | |
299 | ||
300 | case TRANSFER_OLD: | |
301 | case TRANSFER: | |
302 | DPRINTF("TRANSFER\n"); | |
303 | { | |
304 | WD_TRANSFER *tr = (WD_TRANSFER*)(wdheader->data); | |
305 | ||
306 | #ifndef NO_WINDRVR | |
307 | ret = (*ioctl_func) (fd, request, wdioctl); | |
308 | #else | |
309 | ret = pport->transfer(tr, fd, request, ppbase, ecpbase, 1); | |
310 | #endif | |
311 | } | |
312 | break; | |
313 | ||
314 | case MULTI_TRANSFER_OLD: | |
315 | case MULTI_TRANSFER: | |
316 | DPRINTF("MULTI_TRANSFER\n"); | |
317 | { | |
318 | WD_TRANSFER *tr = (WD_TRANSFER*)(wdheader->data); | |
319 | unsigned long num = wdheader->size/sizeof(WD_TRANSFER); | |
320 | #ifndef NO_WINDRVR | |
321 | ret = (*ioctl_func) (fd, request, wdioctl); | |
322 | #else | |
323 | ret = pport->transfer(tr, fd, request, ppbase, ecpbase, num); | |
324 | #endif | |
325 | } | |
326 | break; | |
327 | ||
328 | case EVENT_UNREGISTER: | |
329 | { | |
330 | struct event *e = (struct event*)(wdheader->data); | |
331 | ||
332 | DPRINTF("EVENT_UNREGISTER\n"); | |
333 | #ifndef NO_WINDRVR | |
334 | ret = (*ioctl_func) (fd, request, wdioctl); | |
335 | #else | |
336 | xpcu_close(xpcu, e); | |
337 | #endif | |
338 | } | |
339 | break; | |
340 | ||
341 | case INT_WAIT: | |
342 | DPRINTF("INT_WAIT\n"); | |
343 | { | |
344 | struct interrupt *it = (struct interrupt*)(wdheader->data); | |
345 | ||
346 | DPRINTF("-> Handle: 0x%lx, Options: %lx, ncmds: %lu, enableok: %lu, count: %lu, lost: %lu, stopped: %lu\n", | |
347 | it->hInterrupt, it->dwOptions, | |
348 | it->dwCmds, it->fEnableOk, it->dwCounter, | |
349 | it->dwLost, it->fStopped); | |
350 | ||
351 | #ifndef NO_WINDRVR | |
352 | ret = (*ioctl_func) (fd, request, wdioctl); | |
353 | #else | |
354 | xpcu_int_wait(xpcu, it); | |
355 | #endif | |
356 | ||
357 | DPRINTF("<- INT_WAIT_RETURN: Handle: 0x%lx, Options: %lx, ncmds: %lu, enableok: %lu, count: %lu, lost: %lu, stopped: %lu\n", | |
358 | it->hInterrupt, it->dwOptions, it->dwCmds, | |
359 | it->fEnableOk, it->dwCounter, it->dwLost, | |
360 | it->fStopped); | |
361 | } | |
362 | break; | |
363 | ||
364 | case CARD_UNREGISTER: | |
365 | DPRINTF("CARD_UNREGISTER\n"); | |
366 | { | |
367 | struct card_register* cr = (struct card_register*)(wdheader->data); | |
368 | ||
369 | DPRINTF("-> Addr: 0x%lx, bytes: %lu, bar: %lu\n", | |
370 | (unsigned long)cr->Card.Item[0].I.IO.dwAddr, | |
371 | cr->Card.Item[0].I.IO.dwBytes, | |
372 | cr->Card.Item[0].I.IO.dwBar); | |
373 | ||
374 | DPRINTF("-> hCard: %lu\n", cr->hCard); | |
375 | ||
376 | #ifndef NO_WINDRVR | |
377 | ret = (*ioctl_func) (fd, request, wdioctl); | |
378 | #else | |
379 | if (pport) | |
380 | pport->close(cr->hCard); | |
381 | ||
382 | pport = NULL; | |
383 | #endif | |
384 | } | |
385 | break; | |
386 | ||
387 | case EVENT_PULL: | |
388 | DPRINTF("EVENT_PULL\n"); | |
389 | { | |
390 | struct event *e = (struct event*)(wdheader->data); | |
391 | #ifdef DEBUG | |
392 | int i; | |
393 | ||
394 | DPRINTF("-> handle: 0x%lx, action: %lu, status: %lu, eventid: %lu, cardtype: %lx, kplug: %lu, options: %lu, dev: %lx:%lx, unique: 0x%lx, ver: %lu, nummatch: %lu\n", | |
395 | e->handle, e->dwAction, e->dwStatus, | |
396 | e->dwEventId, e->dwCardType, e->hKernelPlugIn, | |
397 | e->dwOptions, e->u.Usb.deviceId.dwVendorId, | |
398 | e->u.Usb.deviceId.dwProductId, | |
399 | e->u.Usb.dwUniqueID, e->dwEventVer, | |
400 | e->dwNumMatchTables); | |
401 | ||
402 | for (i = 0; i < e->dwNumMatchTables; i++) | |
403 | DPRINTF("-> match: dev: %04x:%04x, class: %x, subclass: %x, intclass: %x, intsubclass: %x, intproto: %x\n", | |
404 | e->matchTables[i].VendorId, | |
405 | e->matchTables[i].ProductId, | |
406 | e->matchTables[i].bDeviceClass, | |
407 | e->matchTables[i].bDeviceSubClass, | |
408 | e->matchTables[i].bInterfaceClass, | |
409 | e->matchTables[i].bInterfaceSubClass, | |
410 | e->matchTables[i].bInterfaceProtocol); | |
411 | #endif | |
412 | ||
413 | #ifndef NO_WINDRVR | |
414 | ret = (*ioctl_func) (fd, request, wdioctl); | |
415 | #else | |
416 | xpcu_found(xpcu, e); | |
417 | #endif | |
418 | ||
419 | #ifdef DEBUG | |
420 | DPRINTF("<- handle: 0x%lx, action: %lu, status: %lu, eventid: %lu, cardtype: %lx, kplug: %lu, options: %lu, dev: %lx:%lx, unique: 0x%lx, ver: %lu, nummatch: %lu\n", | |
421 | e->handle, e->dwAction, e->dwStatus, | |
422 | e->dwEventId, e->dwCardType, e->hKernelPlugIn, | |
423 | e->dwOptions, e->u.Usb.deviceId.dwVendorId, | |
424 | e->u.Usb.deviceId.dwProductId, | |
425 | e->u.Usb.dwUniqueID, e->dwEventVer, | |
426 | e->dwNumMatchTables); | |
427 | ||
428 | for (i = 0; i < e->dwNumMatchTables; i++) | |
429 | DPRINTF("<- match: dev: %04x:%04x, class: %x, subclass: %x, intclass: %x, intsubclass: %x, intproto: %x\n", | |
430 | e->matchTables[i].VendorId, | |
431 | e->matchTables[i].ProductId, | |
432 | e->matchTables[i].bDeviceClass, | |
433 | e->matchTables[i].bDeviceSubClass, | |
434 | e->matchTables[i].bInterfaceClass, | |
435 | e->matchTables[i].bInterfaceSubClass, | |
436 | e->matchTables[i].bInterfaceProtocol); | |
437 | #endif | |
438 | ||
439 | } | |
440 | break; | |
441 | ||
442 | default: | |
443 | fprintf(stderr,"!!!Unsupported IOCTL: %x!!!\n", request); | |
444 | #ifndef NO_WINDRVR | |
445 | ret = (*ioctl_func) (fd, request, wdioctl); | |
446 | #endif | |
447 | break; | |
448 | } | |
449 | ||
450 | return ret; | |
451 | } | |
452 | ||
453 | int ioctl(int fd, unsigned long int request, ...) { | |
454 | va_list args; | |
455 | void *argp; | |
456 | int ret; | |
457 | ||
458 | if (!ioctl_func) | |
459 | ioctl_func = (int (*) (int, int, void *)) dlsym (RTLD_NEXT, "ioctl"); | |
460 | ||
461 | va_start (args, request); | |
462 | argp = va_arg (args, void *); | |
463 | va_end (args); | |
464 | ||
465 | if (fd == windrvrfd) | |
466 | ret = do_wdioctl(fd, request, argp); | |
467 | else | |
468 | ret = (*ioctl_func) (fd, request, argp); | |
469 | ||
470 | return ret; | |
471 | } | |
472 | ||
473 | int open (const char *pathname, int flags, ...) { | |
474 | static int (*func) (const char *, int, mode_t) = NULL; | |
475 | mode_t mode = 0; | |
476 | va_list args; | |
477 | int fd; | |
478 | ||
479 | if (!func) | |
480 | func = (int (*) (const char *, int, mode_t)) dlsym (RTLD_NEXT, "open"); | |
481 | ||
482 | if (flags & O_CREAT) { | |
483 | va_start(args, flags); | |
484 | mode = va_arg(args, mode_t); | |
485 | va_end(args); | |
486 | } | |
487 | ||
488 | if (!strcmp (pathname, "/dev/windrvr6")) { | |
489 | DPRINTF("opening windrvr6\n"); | |
490 | #ifdef NO_WINDRVR | |
491 | windrvrfd = fd = (*func) ("/dev/null", flags, mode); | |
492 | #else | |
493 | windrvrfd = fd = (*func) (pathname, flags, mode); | |
494 | #endif | |
495 | ||
496 | return fd; | |
497 | } | |
498 | ||
499 | return (*func) (pathname, flags, mode); | |
500 | } | |
501 | ||
502 | int close(int fd) { | |
503 | static int (*func) (int) = NULL; | |
504 | ||
505 | if (!func) | |
506 | func = (int (*) (int)) dlsym(RTLD_NEXT, "close"); | |
507 | ||
508 | if (fd == windrvrfd && windrvrfd >= 0) { | |
509 | DPRINTF("close windrvrfd\n"); | |
510 | ||
511 | xpcu = NULL; | |
512 | windrvrfd = -1; | |
513 | } | |
514 | ||
515 | return (*func) (fd); | |
516 | } | |
517 | ||
518 | FILE *fopen(const char *path, const char *mode) { | |
519 | FILE *ret; | |
520 | static FILE* (*func) (const char*, const char*) = NULL; | |
521 | char buf[256]; | |
522 | int i; | |
523 | ||
524 | if (!func) | |
525 | func = (FILE* (*) (const char*, const char*)) dlsym(RTLD_NEXT, "fopen"); | |
526 | ||
527 | for (i = 0; i < 4; i++) { | |
528 | snprintf(buf, sizeof(buf), "/proc/sys/dev/parport/parport%d/base-addr", i); | |
529 | if (!strcmp(path, buf)) { | |
530 | DPRINTF("open base-addr of parport%d\n", i); | |
531 | if (config_is_real_pport(i)) { | |
532 | ret = (*func) (path, mode); | |
533 | } else { | |
534 | ret = (*func) ("/dev/null", mode); | |
535 | } | |
536 | ||
537 | if (ret) { | |
538 | baseaddrfp = ret; | |
539 | baseaddrnum = i; | |
540 | } | |
541 | ||
542 | return ret; | |
543 | } | |
544 | } | |
545 | ||
546 | ret = (*func) (path, mode); | |
547 | ||
548 | if (!strcmp(path, "/proc/modules")) { | |
549 | DPRINTF("opening /proc/modules\n"); | |
550 | #ifdef NO_WINDRVR | |
551 | modulesfp = ret; | |
552 | modules_read = 0; | |
553 | #endif | |
554 | } | |
555 | ||
556 | return ret; | |
557 | } | |
558 | ||
559 | char *fgets(char *s, int size, FILE *stream) { | |
560 | static char* (*func) (char*, int, FILE*) = NULL; | |
561 | const char modules[][256] = {"windrvr6 1 0 - Live 0xdeadbeef\n", "parport_pc 1 0 - Live 0xdeadbeef\n"}; | |
562 | char buf[256]; | |
563 | char *ret = NULL; | |
564 | ||
565 | ||
566 | if (!func) | |
567 | func = (char* (*) (char*, int, FILE*)) dlsym(RTLD_NEXT, "fgets"); | |
568 | ||
569 | if (modulesfp == stream) { | |
570 | if (modules_read < sizeof(modules) / sizeof(modules[0])) { | |
571 | strcpy(s, modules[modules_read]); | |
572 | ret = s; | |
573 | modules_read++; | |
574 | } | |
575 | } else if (baseaddrfp == stream) { | |
576 | snprintf(s, sizeof(buf), "%d\t%d\n", | |
577 | (baseaddrnum) * 0x10, | |
578 | ((baseaddrnum) * 0x10) + 0x400); | |
579 | ret = s; | |
580 | } else { | |
581 | ret = (*func)(s,size,stream); | |
582 | } | |
583 | ||
584 | return ret; | |
585 | } | |
586 | ||
587 | int fclose(FILE *fp) { | |
588 | static int (*func) (FILE*) = NULL; | |
589 | ||
590 | if (!func) | |
591 | func = (int (*) (FILE*)) dlsym(RTLD_NEXT, "fclose"); | |
592 | ||
593 | if (fp == modulesfp) { | |
594 | modulesfp = NULL; | |
595 | } | |
596 | ||
597 | if (fp == baseaddrfp) { | |
598 | baseaddrfp = NULL; | |
599 | } | |
600 | ||
601 | return (*func)(fp); | |
602 | } | |
603 | ||
604 | int access(const char *pathname, int mode) { | |
605 | static int (*func) (const char*, int); | |
606 | ||
607 | if (!func) | |
608 | func = (int (*) (const char*, int)) dlsym(RTLD_NEXT, "access"); | |
609 | ||
610 | if (pathname && !strcmp(pathname, "/dev/windrvr6")) { | |
611 | return 0; | |
612 | } else { | |
613 | return (*func)(pathname, mode); | |
614 | } | |
615 | } | |
616 | ||
617 | #if __WORDSIZE == 32 | |
618 | int uname (struct utsname *__name) { | |
619 | static int (*func) (struct utsname*); | |
620 | int ret; | |
621 | ||
622 | if (!func) | |
623 | func = (int (*) (struct utsname*)) dlsym(RTLD_NEXT, "uname"); | |
624 | ||
625 | ret = (*func)(__name); | |
626 | ||
627 | if (ret == 0 && (!strcmp(__name->machine, "x86_64"))) { | |
628 | strcpy(__name->machine, "i686"); | |
629 | } | |
630 | ||
631 | return ret; | |
632 | } | |
633 | #endif |