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