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c7de829c WD |
1 | /**************************************************************************** |
2 | * | |
3 | * SciTech OS Portability Manager Library | |
4 | * | |
5 | * ======================================================================== | |
6 | * | |
7 | * The contents of this file are subject to the SciTech MGL Public | |
8 | * License Version 1.0 (the "License"); you may not use this file | |
9 | * except in compliance with the License. You may obtain a copy of | |
10 | * the License at http://www.scitechsoft.com/mgl-license.txt | |
11 | * | |
12 | * Software distributed under the License is distributed on an | |
13 | * "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or | |
14 | * implied. See the License for the specific language governing | |
15 | * rights and limitations under the License. | |
16 | * | |
17 | * The Original Code is Copyright (C) 1991-1998 SciTech Software, Inc. | |
18 | * | |
19 | * The Initial Developer of the Original Code is SciTech Software, Inc. | |
20 | * All Rights Reserved. | |
21 | * | |
22 | * ======================================================================== | |
23 | * | |
24 | * Language: ANSI C | |
25 | * Environment: QNX | |
26 | * | |
27 | * Description: Implementation for the OS Portability Manager Library, which | |
28 | * contains functions to implement OS specific services in a | |
29 | * generic, cross platform API. Porting the OS Portability | |
30 | * Manager library is the first step to porting any SciTech | |
31 | * products to a new platform. | |
32 | * | |
33 | ****************************************************************************/ | |
34 | ||
35 | #include "pmapi.h" | |
36 | #include "drvlib/os/os.h" | |
37 | #include "mtrr.h" | |
38 | #include <stdio.h> | |
39 | #include <stdlib.h> | |
40 | #include <string.h> | |
41 | #include <time.h> | |
42 | #include <unistd.h> | |
43 | #include <termios.h> | |
44 | #include <fcntl.h> | |
45 | #include <malloc.h> | |
46 | #include <sys/mman.h> | |
47 | #include "qnx/vbios.h" | |
48 | #ifndef __QNXNTO__ | |
49 | #include <sys/seginfo.h> | |
50 | #include <sys/console.h> | |
51 | #include <conio.h> | |
52 | #include <i86.h> | |
53 | #else | |
54 | #include <sys/neutrino.h> | |
55 | #include <sys/dcmd_chr.h> | |
56 | #endif | |
57 | ||
58 | /*--------------------------- Global variables ----------------------------*/ | |
59 | ||
60 | static uint VESABuf_len = 1024; /* Length of the VESABuf buffer */ | |
61 | static void *VESABuf_ptr = NULL; /* Near pointer to VESABuf */ | |
62 | static uint VESABuf_rseg; /* Real mode segment of VESABuf */ | |
63 | static uint VESABuf_roff; /* Real mode offset of VESABuf */ | |
64 | static VBIOSregs_t *VRegs = NULL; /* Pointer to VBIOS registers */ | |
65 | static int raw_count = 0; | |
66 | static struct _console_ctrl *cc = NULL; | |
67 | static int console_count = 0; | |
68 | static int rmbuf_inuse = 0; | |
69 | ||
70 | static void (PMAPIP fatalErrorCleanup)(void) = NULL; | |
71 | ||
72 | /*----------------------------- Implementation ----------------------------*/ | |
73 | ||
74 | void PMAPI PM_init(void) | |
75 | { | |
76 | char *force; | |
77 | ||
78 | if (VRegs == NULL) { | |
79 | #ifdef __QNXNTO__ | |
8bde7f77 | 80 | ThreadCtl(_NTO_TCTL_IO, 0); /* Get IO privilidge */ |
c7de829c | 81 | #endif |
8bde7f77 WD |
82 | force = getenv("VBIOS_METHOD"); |
83 | VRegs = VBIOSinit(force ? atoi(force) : 0); | |
84 | } | |
c7de829c WD |
85 | #ifndef __QNXNTO__ |
86 | MTRR_init(); | |
87 | #endif | |
88 | } | |
89 | ||
90 | ibool PMAPI PM_haveBIOSAccess(void) | |
91 | { return VRegs != NULL; } | |
92 | ||
93 | long PMAPI PM_getOSType(void) | |
94 | { return _OS_QNX; } | |
95 | ||
96 | int PMAPI PM_getModeType(void) | |
97 | { return PM_386; } | |
98 | ||
99 | void PMAPI PM_backslash(char *s) | |
100 | { | |
101 | uint pos = strlen(s); | |
102 | if (s[pos-1] != '/') { | |
8bde7f77 WD |
103 | s[pos] = '/'; |
104 | s[pos+1] = '\0'; | |
105 | } | |
c7de829c WD |
106 | } |
107 | ||
108 | void PMAPI PM_setFatalErrorCleanup( | |
109 | void (PMAPIP cleanup)(void)) | |
110 | { | |
111 | fatalErrorCleanup = cleanup; | |
112 | } | |
113 | ||
114 | void PMAPI PM_fatalError(const char *msg) | |
115 | { | |
116 | if (fatalErrorCleanup) | |
8bde7f77 | 117 | fatalErrorCleanup(); |
c7de829c WD |
118 | fprintf(stderr,"%s\n", msg); |
119 | exit(1); | |
120 | } | |
121 | ||
122 | static void ExitVBEBuf(void) | |
123 | { | |
124 | if (VESABuf_ptr) | |
8bde7f77 | 125 | PM_freeRealSeg(VESABuf_ptr); |
c7de829c WD |
126 | VESABuf_ptr = 0; |
127 | } | |
128 | ||
129 | void * PMAPI PM_getVESABuf(uint *len,uint *rseg,uint *roff) | |
130 | { | |
131 | if (!VESABuf_ptr) { | |
8bde7f77 WD |
132 | /* Allocate a global buffer for communicating with the VESA VBE */ |
133 | if ((VESABuf_ptr = PM_allocRealSeg(VESABuf_len, &VESABuf_rseg, &VESABuf_roff)) == NULL) | |
134 | return NULL; | |
135 | atexit(ExitVBEBuf); | |
136 | } | |
c7de829c WD |
137 | *len = VESABuf_len; |
138 | *rseg = VESABuf_rseg; | |
139 | *roff = VESABuf_roff; | |
140 | return VESABuf_ptr; | |
141 | } | |
142 | ||
143 | static int term_raw(void) | |
144 | { | |
145 | struct termios termios_p; | |
146 | ||
147 | if (raw_count++ > 0) | |
8bde7f77 | 148 | return 0; |
c7de829c WD |
149 | |
150 | /* Go into "raw" input mode */ | |
151 | if (tcgetattr(STDIN_FILENO, &termios_p)) | |
8bde7f77 | 152 | return -1; |
c7de829c WD |
153 | |
154 | termios_p.c_cc[VMIN] = 1; | |
155 | termios_p.c_cc[VTIME] = 0; | |
156 | termios_p.c_lflag &= ~( ECHO|ICANON|ISIG|ECHOE|ECHOK|ECHONL); | |
157 | tcsetattr(STDIN_FILENO, TCSADRAIN, &termios_p); | |
158 | return 0; | |
159 | } | |
160 | ||
161 | static void term_restore(void) | |
162 | { | |
163 | struct termios termios_p; | |
164 | ||
165 | if (raw_count-- != 1) | |
8bde7f77 | 166 | return; |
c7de829c WD |
167 | |
168 | tcgetattr(STDIN_FILENO, &termios_p); | |
169 | termios_p.c_lflag |= (ECHO|ICANON|ISIG|ECHOE|ECHOK|ECHONL); | |
170 | termios_p.c_oflag |= (OPOST); | |
171 | tcsetattr(STDIN_FILENO, TCSADRAIN, &termios_p); | |
172 | } | |
173 | ||
174 | int PMAPI PM_kbhit(void) | |
175 | { | |
176 | int blocking, c; | |
177 | ||
178 | if (term_raw() == -1) | |
8bde7f77 | 179 | return 0; |
c7de829c WD |
180 | |
181 | /* Go into non blocking mode */ | |
182 | blocking = fcntl(STDIN_FILENO, F_GETFL) | O_NONBLOCK; | |
183 | fcntl(STDIN_FILENO, F_SETFL, blocking); | |
184 | c = getc(stdin); | |
185 | ||
186 | /* restore blocking mode */ | |
187 | fcntl(STDIN_FILENO, F_SETFL, blocking & ~O_NONBLOCK); | |
188 | term_restore(); | |
189 | if (c != EOF) { | |
8bde7f77 WD |
190 | ungetc(c, stdin); |
191 | return c; | |
192 | } | |
c7de829c WD |
193 | clearerr(stdin); |
194 | return 0; | |
195 | } | |
196 | ||
197 | int PMAPI PM_getch(void) | |
198 | { | |
199 | int c; | |
200 | ||
201 | if (term_raw() == -1) | |
8bde7f77 | 202 | return (0); |
c7de829c WD |
203 | c = getc(stdin); |
204 | #if defined(__QNX__) && !defined(__QNXNTO__) | |
205 | if (c == 0xA) | |
8bde7f77 | 206 | c = 0x0D; |
c7de829c | 207 | else if (c == 0x7F) |
8bde7f77 | 208 | c = 0x08; |
c7de829c WD |
209 | #endif |
210 | term_restore(); | |
211 | return c; | |
212 | } | |
213 | ||
214 | PM_HWND PMAPI PM_openConsole( | |
215 | PM_HWND hwndUser, | |
216 | int device, | |
217 | int xRes, | |
218 | int yRes, | |
219 | int bpp, | |
220 | ibool fullScreen) | |
221 | { | |
222 | #ifndef __QNXNTO__ | |
223 | int fd; | |
224 | ||
225 | if (console_count++) | |
8bde7f77 | 226 | return 0; |
c7de829c | 227 | if ((fd = open("/dev/con1", O_RDWR)) == -1) |
8bde7f77 | 228 | return -1; |
c7de829c WD |
229 | cc = console_open(fd, O_RDWR); |
230 | close(fd); | |
231 | if (cc == NULL) | |
8bde7f77 | 232 | return -1; |
c7de829c WD |
233 | #endif |
234 | return 1; | |
235 | } | |
236 | ||
237 | int PMAPI PM_getConsoleStateSize(void) | |
238 | { | |
239 | return PM_getVGAStateSize() + sizeof(int) * 3; | |
240 | } | |
241 | ||
242 | void PMAPI PM_saveConsoleState(void *stateBuf,int console_id) | |
243 | { | |
244 | #ifdef __QNXNTO__ | |
245 | int fd; | |
246 | int flags; | |
247 | ||
248 | if ((fd = open("/dev/con1", O_RDWR)) == -1) | |
8bde7f77 | 249 | return; |
c7de829c WD |
250 | flags = _CONCTL_INVISIBLE_CHG | _CONCTL_INVISIBLE; |
251 | devctl(fd, DCMD_CHR_SERCTL, &flags, sizeof flags, 0); | |
252 | close(fd); | |
253 | #else | |
254 | uchar *buf = &((uchar*)stateBuf)[PM_getVGAStateSize()]; | |
255 | ||
256 | /* Save QNX 4 console state */ | |
257 | console_read(cc, -1, 0, NULL, 0, | |
8bde7f77 | 258 | (int *)buf+1, (int *)buf+2, NULL); |
c7de829c | 259 | *(int *)buf = console_ctrl(cc, -1, |
8bde7f77 WD |
260 | CONSOLE_NORESIZE | CONSOLE_NOSWITCH | CONSOLE_INVISIBLE, |
261 | CONSOLE_NORESIZE | CONSOLE_NOSWITCH | CONSOLE_INVISIBLE); | |
c7de829c WD |
262 | |
263 | /* Save state of VGA registers */ | |
264 | PM_saveVGAState(stateBuf); | |
265 | #endif | |
266 | } | |
267 | ||
268 | void PMAPI PM_setSuspendAppCallback(int (_ASMAPIP saveState)(int flags)) | |
269 | { | |
270 | /* TODO: Implement support for console switching if possible */ | |
271 | } | |
272 | ||
273 | void PMAPI PM_restoreConsoleState(const void *stateBuf,PM_HWND hwndConsole) | |
274 | { | |
275 | #ifdef __QNXNTO__ | |
276 | int fd; | |
277 | int flags; | |
278 | ||
279 | if ((fd = open("/dev/con1", O_RDWR)) == -1) | |
8bde7f77 | 280 | return; |
c7de829c WD |
281 | flags = _CONCTL_INVISIBLE_CHG; |
282 | devctl(fd, DCMD_CHR_SERCTL, &flags, sizeof flags, 0); | |
283 | close(fd); | |
284 | #else | |
285 | uchar *buf = &((uchar*)stateBuf)[PM_getVGAStateSize()]; | |
286 | ||
287 | /* Restore the state of the VGA compatible registers */ | |
288 | PM_restoreVGAState(stateBuf); | |
289 | ||
290 | /* Restore QNX 4 console state */ | |
291 | console_ctrl(cc, -1, *(int *)buf, | |
8bde7f77 | 292 | CONSOLE_NORESIZE | CONSOLE_NOSWITCH | CONSOLE_INVISIBLE); |
c7de829c | 293 | console_write(cc, -1, 0, NULL, 0, |
8bde7f77 | 294 | (int *)buf+1, (int *)buf+2, NULL); |
c7de829c WD |
295 | #endif |
296 | } | |
297 | ||
298 | void PMAPI PM_closeConsole(PM_HWND hwndConsole) | |
299 | { | |
300 | #ifndef __QNXNTO__ | |
301 | if (--console_count == 0) { | |
8bde7f77 WD |
302 | console_close(cc); |
303 | cc = NULL; | |
304 | } | |
c7de829c WD |
305 | #endif |
306 | } | |
307 | ||
308 | void PM_setOSCursorLocation(int x,int y) | |
309 | { | |
310 | if (!cc) | |
8bde7f77 | 311 | return; |
c7de829c WD |
312 | #ifndef __QNXNTO__ |
313 | console_write(cc, -1, 0, NULL, 0, &y, &x, NULL); | |
314 | #endif | |
315 | } | |
316 | ||
317 | void PM_setOSScreenWidth(int width,int height) | |
318 | { | |
319 | } | |
320 | ||
321 | ibool PMAPI PM_setRealTimeClockHandler(PM_intHandler ih, int frequency) | |
322 | { | |
8bde7f77 | 323 | /* TODO: Implement this for QNX */ |
c7de829c WD |
324 | return false; |
325 | } | |
326 | ||
327 | void PMAPI PM_setRealTimeClockFrequency(int frequency) | |
328 | { | |
8bde7f77 | 329 | /* TODO: Implement this for QNX */ |
c7de829c WD |
330 | } |
331 | ||
332 | void PMAPI PM_restoreRealTimeClockHandler(void) | |
333 | { | |
8bde7f77 | 334 | /* TODO: Implement this for QNX */ |
c7de829c WD |
335 | } |
336 | ||
337 | char * PMAPI PM_getCurrentPath( | |
338 | char *path, | |
339 | int maxLen) | |
340 | { | |
341 | return getcwd(path,maxLen); | |
342 | } | |
343 | ||
344 | char PMAPI PM_getBootDrive(void) | |
345 | { return '/'; } | |
346 | ||
347 | const char * PMAPI PM_getVBEAFPath(void) | |
348 | { return PM_getNucleusConfigPath(); } | |
349 | ||
350 | const char * PMAPI PM_getNucleusPath(void) | |
351 | { | |
352 | char *env = getenv("NUCLEUS_PATH"); | |
353 | #ifdef __QNXNTO__ | |
354 | #ifdef __X86__ | |
355 | return env ? env : "/nto/scitech/x86/bin"; | |
356 | #elif defined (__PPC__) | |
357 | return env ? env : "/nto/scitech/ppcbe/bin"; | |
358 | #elif defined (__MIPS__) | |
359 | #ifdef __BIGENDIAN__ | |
360 | return env ? env : "/nto/scitech/mipsbe/bin"; | |
361 | #else | |
362 | return env ? env : "/nto/scitech/mipsle/bin"; | |
363 | #endif | |
364 | #elif defined (__SH__) | |
365 | #ifdef __BIGENDIAN__ | |
366 | return env ? env : "/nto/scitech/shbe/bin"; | |
367 | #else | |
368 | return env ? env : "/nto/scitech/shle/bin"; | |
369 | #endif | |
370 | #elif defined (__ARM__) | |
371 | return env ? env : "/nto/scitech/armle/bin"; | |
372 | #endif | |
373 | #else /* QNX 4 */ | |
374 | return env ? env : "/qnx4/scitech/bin"; | |
375 | #endif | |
376 | } | |
377 | ||
378 | const char * PMAPI PM_getNucleusConfigPath(void) | |
379 | { | |
380 | static char path[512]; | |
381 | char *env; | |
382 | #ifdef __QNXNTO__ | |
383 | char temp[64]; | |
384 | gethostname(temp, sizeof (temp)); | |
385 | temp[sizeof (temp) - 1] = '\0'; /* Paranoid */ | |
386 | sprintf(path,"/etc/config/scitech/%s/config", temp); | |
387 | #else | |
388 | sprintf(path,"/etc/config/scitech/%d/config", getnid()); | |
389 | #endif | |
390 | if ((env = getenv("NUCLEUS_PATH")) != NULL) { | |
8bde7f77 WD |
391 | strcpy(path,env); |
392 | PM_backslash(path); | |
393 | strcat(path,"config"); | |
394 | } | |
c7de829c WD |
395 | return path; |
396 | } | |
397 | ||
398 | const char * PMAPI PM_getUniqueID(void) | |
399 | { | |
400 | static char buf[128]; | |
401 | #ifdef __QNXNTO__ | |
402 | gethostname(buf, sizeof (buf)); | |
403 | #else | |
404 | sprintf(buf,"node%d", getnid()); | |
405 | #endif | |
406 | return buf; | |
407 | } | |
408 | ||
409 | const char * PMAPI PM_getMachineName(void) | |
410 | { | |
411 | static char buf[128]; | |
412 | #ifdef __QNXNTO__ | |
413 | gethostname(buf, sizeof (buf)); | |
414 | #else | |
415 | sprintf(buf,"node%d", getnid()); | |
416 | #endif | |
417 | return buf; | |
418 | } | |
419 | ||
420 | void * PMAPI PM_getBIOSPointer(void) | |
421 | { | |
422 | return PM_mapRealPointer(0, 0x400); | |
423 | } | |
424 | ||
425 | void * PMAPI PM_getA0000Pointer(void) | |
426 | { | |
427 | static void *ptr = NULL; | |
428 | void *freeptr; | |
429 | unsigned offset, i, maplen; | |
430 | ||
431 | if (ptr != NULL) | |
8bde7f77 | 432 | return ptr; |
c7de829c WD |
433 | |
434 | /* Some trickery is required to get the linear address 64K aligned */ | |
435 | for (i = 0; i < 5; i++) { | |
8bde7f77 WD |
436 | ptr = PM_mapPhysicalAddr(0xA0000,0xFFFF,true); |
437 | offset = 0x10000 - ((unsigned)ptr % 0x10000); | |
438 | if (!offset) | |
439 | break; | |
440 | munmap(ptr, 0x10000); | |
441 | maplen = 0x10000 + offset; | |
442 | freeptr = PM_mapPhysicalAddr(0xA0000-offset, maplen-1,true); | |
443 | ptr = (void *)(offset + (unsigned)freeptr); | |
444 | if (0x10000 - ((unsigned)ptr % 0x10000)) | |
445 | break; | |
446 | munmap(freeptr, maplen); | |
447 | } | |
c7de829c | 448 | if (i == 5) { |
8bde7f77 WD |
449 | printf("Could not get a 64K aligned linear address for A0000 region\n"); |
450 | exit(1); | |
451 | } | |
c7de829c WD |
452 | return ptr; |
453 | } | |
454 | ||
455 | void * PMAPI PM_mapPhysicalAddr(ulong base,ulong limit,ibool isCached) | |
456 | { | |
457 | uchar_t *p; | |
458 | unsigned o; | |
459 | unsigned prot = PROT_READ|PROT_WRITE|(isCached?0:PROT_NOCACHE); | |
460 | #ifdef __PAGESIZE | |
461 | int pagesize = __PAGESIZE; | |
462 | #else | |
463 | int pagesize = 4096; | |
464 | #endif | |
465 | int rounddown = base % pagesize; | |
466 | #ifndef __QNXNTO__ | |
467 | static int __VidFD = -1; | |
468 | #endif | |
469 | ||
470 | if (rounddown) { | |
8bde7f77 WD |
471 | if (base < rounddown) |
472 | return NULL; | |
473 | base -= rounddown; | |
474 | limit += rounddown; | |
475 | } | |
c7de829c WD |
476 | |
477 | #ifndef __QNXNTO__ | |
478 | if (__VidFD < 0) { | |
8bde7f77 WD |
479 | if ((__VidFD = shm_open( "Physical", O_RDWR, 0777 )) == -1) { |
480 | perror( "Cannot open Physical memory" ); | |
481 | exit(1); | |
482 | } | |
483 | } | |
c7de829c WD |
484 | o = base & 0xFFF; |
485 | limit = (limit + o + 0xFFF) & ~0xFFF; | |
486 | if ((int)(p = mmap( 0, limit, prot, MAP_SHARED, | |
8bde7f77 WD |
487 | __VidFD, base )) == -1 ) { |
488 | return NULL; | |
489 | } | |
c7de829c WD |
490 | p += o; |
491 | #else | |
492 | if ((p = mmap(0, limit, prot, MAP_PHYS | MAP_SHARED, | |
8bde7f77 WD |
493 | NOFD, base)) == MAP_FAILED) { |
494 | return (void *)-1; | |
495 | } | |
c7de829c WD |
496 | #endif |
497 | return (p + rounddown); | |
498 | } | |
499 | ||
500 | void PMAPI PM_freePhysicalAddr(void *ptr,ulong limit) | |
501 | { | |
502 | munmap(ptr,limit+1); | |
503 | } | |
504 | ||
505 | ulong PMAPI PM_getPhysicalAddr(void *p) | |
506 | { | |
8bde7f77 WD |
507 | /* TODO: This function should find the physical address of a linear */ |
508 | /* address. */ | |
c7de829c WD |
509 | return 0xFFFFFFFFUL; |
510 | } | |
511 | ||
512 | ibool PMAPI PM_getPhysicalAddrRange( | |
513 | void *p, | |
514 | ulong length, | |
515 | ulong *physAddress) | |
516 | { | |
8bde7f77 | 517 | /* TODO: Implement this! */ |
c7de829c WD |
518 | return false; |
519 | } | |
520 | ||
521 | void PMAPI PM_sleep(ulong milliseconds) | |
522 | { | |
8bde7f77 | 523 | /* TODO: Put the process to sleep for milliseconds */ |
c7de829c WD |
524 | } |
525 | ||
526 | int PMAPI PM_getCOMPort(int port) | |
527 | { | |
8bde7f77 WD |
528 | /* TODO: Re-code this to determine real values using the Plug and Play */ |
529 | /* manager for the OS. */ | |
c7de829c | 530 | switch (port) { |
8bde7f77 WD |
531 | case 0: return 0x3F8; |
532 | case 1: return 0x2F8; | |
533 | } | |
c7de829c WD |
534 | return 0; |
535 | } | |
536 | ||
537 | int PMAPI PM_getLPTPort(int port) | |
538 | { | |
8bde7f77 WD |
539 | /* TODO: Re-code this to determine real values using the Plug and Play */ |
540 | /* manager for the OS. */ | |
c7de829c | 541 | switch (port) { |
8bde7f77 WD |
542 | case 0: return 0x3BC; |
543 | case 1: return 0x378; | |
544 | case 2: return 0x278; | |
545 | } | |
c7de829c WD |
546 | return 0; |
547 | } | |
548 | ||
549 | void * PMAPI PM_mallocShared(long size) | |
550 | { | |
551 | return PM_malloc(size); | |
552 | } | |
553 | ||
554 | void PMAPI PM_freeShared(void *ptr) | |
555 | { | |
556 | PM_free(ptr); | |
557 | } | |
558 | ||
559 | void * PMAPI PM_mapToProcess(void *base,ulong limit) | |
560 | { return (void*)base; } | |
561 | ||
562 | void * PMAPI PM_mapRealPointer(uint r_seg,uint r_off) | |
563 | { | |
564 | void *p; | |
565 | ||
566 | PM_init(); | |
567 | ||
568 | if ((p = VBIOSgetmemptr(r_seg, r_off, VRegs)) == (void *)-1) | |
8bde7f77 | 569 | return NULL; |
c7de829c WD |
570 | return p; |
571 | } | |
572 | ||
573 | void * PMAPI PM_allocRealSeg(uint size,uint *r_seg,uint *r_off) | |
574 | { | |
575 | if (size > 1024) { | |
8bde7f77 WD |
576 | printf("PM_allocRealSeg: can't handle %d bytes\n", size); |
577 | return 0; | |
578 | } | |
c7de829c | 579 | if (rmbuf_inuse != 0) { |
8bde7f77 WD |
580 | printf("PM_allocRealSeg: transfer area already in use\n"); |
581 | return 0; | |
582 | } | |
c7de829c WD |
583 | PM_init(); |
584 | rmbuf_inuse = 1; | |
585 | *r_seg = VBIOS_TransBufVSeg(VRegs); | |
586 | *r_off = VBIOS_TransBufVOff(VRegs); | |
587 | return (void*)VBIOS_TransBufPtr(VRegs); | |
588 | } | |
589 | ||
590 | void PMAPI PM_freeRealSeg(void *mem) | |
591 | { | |
592 | if (rmbuf_inuse == 0) { | |
8bde7f77 WD |
593 | printf("PM_freeRealSeg: nothing was allocated\n"); |
594 | return; | |
595 | } | |
c7de829c WD |
596 | rmbuf_inuse = 0; |
597 | } | |
598 | ||
599 | void PMAPI DPMI_int86(int intno, DPMI_regs *regs) | |
600 | { | |
601 | PM_init(); | |
602 | if (VRegs == NULL) | |
8bde7f77 | 603 | return; |
c7de829c WD |
604 | |
605 | VRegs->l.eax = regs->eax; | |
606 | VRegs->l.ebx = regs->ebx; | |
607 | VRegs->l.ecx = regs->ecx; | |
608 | VRegs->l.edx = regs->edx; | |
609 | VRegs->l.esi = regs->esi; | |
610 | VRegs->l.edi = regs->edi; | |
611 | ||
612 | VBIOSint(intno, VRegs, 1024); | |
613 | ||
614 | regs->eax = VRegs->l.eax; | |
615 | regs->ebx = VRegs->l.ebx; | |
616 | regs->ecx = VRegs->l.ecx; | |
617 | regs->edx = VRegs->l.edx; | |
618 | regs->esi = VRegs->l.esi; | |
619 | regs->edi = VRegs->l.edi; | |
620 | regs->flags = VRegs->w.flags & 0x1; | |
621 | } | |
622 | ||
623 | int PMAPI PM_int86(int intno, RMREGS *in, RMREGS *out) | |
624 | { | |
625 | PM_init(); | |
626 | if (VRegs == NULL) | |
8bde7f77 | 627 | return 0; |
c7de829c WD |
628 | |
629 | VRegs->l.eax = in->e.eax; | |
630 | VRegs->l.ebx = in->e.ebx; | |
631 | VRegs->l.ecx = in->e.ecx; | |
632 | VRegs->l.edx = in->e.edx; | |
633 | VRegs->l.esi = in->e.esi; | |
634 | VRegs->l.edi = in->e.edi; | |
635 | ||
636 | VBIOSint(intno, VRegs, 1024); | |
637 | ||
638 | out->e.eax = VRegs->l.eax; | |
639 | out->e.ebx = VRegs->l.ebx; | |
640 | out->e.ecx = VRegs->l.ecx; | |
641 | out->e.edx = VRegs->l.edx; | |
642 | out->e.esi = VRegs->l.esi; | |
643 | out->e.edi = VRegs->l.edi; | |
644 | out->x.cflag = VRegs->w.flags & 0x1; | |
645 | ||
646 | return out->x.ax; | |
647 | } | |
648 | ||
649 | int PMAPI PM_int86x(int intno, RMREGS *in, RMREGS *out, | |
650 | RMSREGS *sregs) | |
651 | { | |
652 | PM_init(); | |
653 | if (VRegs == NULL) | |
8bde7f77 | 654 | return 0; |
c7de829c WD |
655 | |
656 | if (intno == 0x21) { | |
8bde7f77 WD |
657 | time_t today = time(NULL); |
658 | struct tm *t; | |
659 | t = localtime(&today); | |
660 | out->x.cx = t->tm_year + 1900; | |
661 | out->h.dh = t->tm_mon + 1; | |
662 | out->h.dl = t->tm_mday; | |
663 | return 0; | |
664 | } | |
c7de829c | 665 | else { |
8bde7f77 WD |
666 | VRegs->l.eax = in->e.eax; |
667 | VRegs->l.ebx = in->e.ebx; | |
668 | VRegs->l.ecx = in->e.ecx; | |
669 | VRegs->l.edx = in->e.edx; | |
670 | VRegs->l.esi = in->e.esi; | |
671 | VRegs->l.edi = in->e.edi; | |
672 | VRegs->w.es = sregs->es; | |
673 | VRegs->w.ds = sregs->ds; | |
674 | ||
675 | VBIOSint(intno, VRegs, 1024); | |
676 | ||
677 | out->e.eax = VRegs->l.eax; | |
678 | out->e.ebx = VRegs->l.ebx; | |
679 | out->e.ecx = VRegs->l.ecx; | |
680 | out->e.edx = VRegs->l.edx; | |
681 | out->e.esi = VRegs->l.esi; | |
682 | out->e.edi = VRegs->l.edi; | |
683 | out->x.cflag = VRegs->w.flags & 0x1; | |
684 | sregs->es = VRegs->w.es; | |
685 | sregs->ds = VRegs->w.ds; | |
686 | ||
687 | return out->x.ax; | |
688 | } | |
c7de829c WD |
689 | } |
690 | ||
691 | void PMAPI PM_callRealMode(uint seg,uint off, RMREGS *in, | |
692 | RMSREGS *sregs) | |
693 | { | |
694 | PM_init(); | |
695 | if (VRegs == NULL) | |
8bde7f77 | 696 | return; |
c7de829c WD |
697 | |
698 | VRegs->l.eax = in->e.eax; | |
699 | VRegs->l.ebx = in->e.ebx; | |
700 | VRegs->l.ecx = in->e.ecx; | |
701 | VRegs->l.edx = in->e.edx; | |
702 | VRegs->l.esi = in->e.esi; | |
703 | VRegs->l.edi = in->e.edi; | |
704 | VRegs->w.es = sregs->es; | |
705 | VRegs->w.ds = sregs->ds; | |
706 | ||
707 | VBIOScall(seg, off, VRegs, 1024); | |
708 | ||
709 | in->e.eax = VRegs->l.eax; | |
710 | in->e.ebx = VRegs->l.ebx; | |
711 | in->e.ecx = VRegs->l.ecx; | |
712 | in->e.edx = VRegs->l.edx; | |
713 | in->e.esi = VRegs->l.esi; | |
714 | in->e.edi = VRegs->l.edi; | |
715 | in->x.cflag = VRegs->w.flags & 0x1; | |
716 | sregs->es = VRegs->w.es; | |
717 | sregs->ds = VRegs->w.ds; | |
718 | } | |
719 | ||
720 | void PMAPI PM_availableMemory(ulong *physical,ulong *total) | |
721 | { | |
722 | #ifndef __QNXNTO__ | |
723 | *physical = *total = _memavl(); | |
724 | #endif | |
725 | } | |
726 | ||
727 | void * PMAPI PM_allocLockedMem( | |
728 | uint size, | |
729 | ulong *physAddr, | |
730 | ibool contiguous, | |
731 | ibool below16M) | |
732 | { | |
8bde7f77 | 733 | /* TODO: Implement this on QNX */ |
c7de829c WD |
734 | return NULL; |
735 | } | |
736 | ||
737 | void PMAPI PM_freeLockedMem( | |
738 | void *p, | |
739 | uint size, | |
740 | ibool contiguous) | |
741 | { | |
8bde7f77 | 742 | /* TODO: Implement this on QNX */ |
c7de829c WD |
743 | } |
744 | ||
745 | void * PMAPI PM_allocPage( | |
746 | ibool locked) | |
747 | { | |
8bde7f77 | 748 | /* TODO: Implement this on QNX */ |
c7de829c WD |
749 | return NULL; |
750 | } | |
751 | ||
752 | void PMAPI PM_freePage( | |
753 | void *p) | |
754 | { | |
8bde7f77 | 755 | /* TODO: Implement this on QNX */ |
c7de829c WD |
756 | } |
757 | ||
758 | void PMAPI PM_setBankA(int bank) | |
759 | { | |
760 | PM_init(); | |
761 | if (VRegs == NULL) | |
8bde7f77 | 762 | return; |
c7de829c WD |
763 | |
764 | VRegs->l.eax = 0x4F05; | |
765 | VRegs->l.ebx = 0x0000; | |
766 | VRegs->l.edx = bank; | |
767 | VBIOSint(0x10, VRegs, 1024); | |
768 | } | |
769 | ||
770 | void PMAPI PM_setBankAB(int bank) | |
771 | { | |
772 | PM_init(); | |
773 | if (VRegs == NULL) | |
8bde7f77 | 774 | return; |
c7de829c WD |
775 | |
776 | VRegs->l.eax = 0x4F05; | |
777 | VRegs->l.ebx = 0x0000; | |
778 | VRegs->l.edx = bank; | |
779 | VBIOSint(0x10, VRegs, 1024); | |
780 | ||
781 | VRegs->l.eax = 0x4F05; | |
782 | VRegs->l.ebx = 0x0001; | |
783 | VRegs->l.edx = bank; | |
784 | VBIOSint(0x10, VRegs, 1024); | |
785 | } | |
786 | ||
787 | void PMAPI PM_setCRTStart(int x,int y,int waitVRT) | |
788 | { | |
789 | PM_init(); | |
790 | if (VRegs == NULL) | |
8bde7f77 | 791 | return; |
c7de829c WD |
792 | |
793 | VRegs->l.eax = 0x4F07; | |
794 | VRegs->l.ebx = waitVRT; | |
795 | VRegs->l.ecx = x; | |
796 | VRegs->l.edx = y; | |
797 | VBIOSint(0x10, VRegs, 1024); | |
798 | } | |
799 | ||
800 | ibool PMAPI PM_doBIOSPOST( | |
801 | ushort axVal, | |
802 | ulong BIOSPhysAddr, | |
803 | void *copyOfBIOS, | |
804 | ulong BIOSLen) | |
805 | { | |
806 | (void)axVal; | |
807 | (void)BIOSPhysAddr; | |
808 | (void)copyOfBIOS; | |
809 | (void)BIOSLen; | |
810 | return false; | |
811 | } | |
812 | ||
813 | int PMAPI PM_lockDataPages(void *p,uint len,PM_lockHandle *lh) | |
814 | { | |
815 | p = p; len = len; | |
816 | return 1; | |
817 | } | |
818 | ||
819 | int PMAPI PM_unlockDataPages(void *p,uint len,PM_lockHandle *lh) | |
820 | { | |
821 | p = p; len = len; | |
822 | return 1; | |
823 | } | |
824 | ||
825 | int PMAPI PM_lockCodePages(void (*p)(),uint len,PM_lockHandle *lh) | |
826 | { | |
827 | p = p; len = len; | |
828 | return 1; | |
829 | } | |
830 | ||
831 | int PMAPI PM_unlockCodePages(void (*p)(),uint len,PM_lockHandle *lh) | |
832 | { | |
833 | p = p; len = len; | |
834 | return 1; | |
835 | } | |
836 | ||
837 | PM_MODULE PMAPI PM_loadLibrary( | |
838 | const char *szDLLName) | |
839 | { | |
8bde7f77 | 840 | /* TODO: Implement this to load shared libraries! */ |
c7de829c WD |
841 | (void)szDLLName; |
842 | return NULL; | |
843 | } | |
844 | ||
845 | void * PMAPI PM_getProcAddress( | |
846 | PM_MODULE hModule, | |
847 | const char *szProcName) | |
848 | { | |
8bde7f77 | 849 | /* TODO: Implement this! */ |
c7de829c WD |
850 | (void)hModule; |
851 | (void)szProcName; | |
852 | return NULL; | |
853 | } | |
854 | ||
855 | void PMAPI PM_freeLibrary( | |
856 | PM_MODULE hModule) | |
857 | { | |
8bde7f77 | 858 | /* TODO: Implement this! */ |
c7de829c WD |
859 | (void)hModule; |
860 | } | |
861 | ||
862 | int PMAPI PM_setIOPL( | |
863 | int level) | |
864 | { | |
8bde7f77 | 865 | /* QNX handles IOPL selection at the program link level. */ |
c7de829c WD |
866 | return level; |
867 | } | |
868 | ||
869 | /**************************************************************************** | |
870 | PARAMETERS: | |
871 | base - The starting physical base address of the region | |
872 | size - The size in bytes of the region | |
873 | type - Type to place into the MTRR register | |
874 | ||
875 | RETURNS: | |
876 | Error code describing the result. | |
877 | ||
878 | REMARKS: | |
879 | Function to enable write combining for the specified region of memory. | |
880 | ****************************************************************************/ | |
881 | int PMAPI PM_enableWriteCombine( | |
882 | ulong base, | |
883 | ulong size, | |
884 | uint type) | |
885 | { | |
886 | #ifndef __QNXNTO__ | |
887 | return MTRR_enableWriteCombine(base,size,type); | |
888 | #else | |
889 | return PM_MTRR_NOT_SUPPORTED; | |
890 | #endif | |
891 | } |