diff options
Diffstat (limited to 'source/main.c')
-rw-r--r-- | source/main.c | 551 |
1 files changed, 157 insertions, 394 deletions
diff --git a/source/main.c b/source/main.c index 7fd5683..ad34eff 100644 --- a/source/main.c +++ b/source/main.c | |||
@@ -1,4 +1,5 @@ | |||
1 | /* | 1 | /* |
2 | * Copyright (c) 2017 slipstream/RoL | ||
2 | * Copyright (C) 2016 FIX94 | 3 | * Copyright (C) 2016 FIX94 |
3 | * | 4 | * |
4 | * This software may be modified and distributed under the terms | 5 | * This software may be modified and distributed under the terms |
@@ -13,8 +14,6 @@ | |||
13 | #include <sys/types.h> | 14 | #include <sys/types.h> |
14 | #include <sys/stat.h> | 15 | #include <sys/stat.h> |
15 | #include <fcntl.h> | 16 | #include <fcntl.h> |
16 | #include <dirent.h> | ||
17 | #include <fat.h> | ||
18 | 17 | ||
19 | //from my tests 50us seems to be the lowest | 18 | //from my tests 50us seems to be the lowest |
20 | //safe si transfer delay in between calls | 19 | //safe si transfer delay in between calls |
@@ -27,9 +26,8 @@ void printmain() | |||
27 | { | 26 | { |
28 | printf("\x1b[2J"); | 27 | printf("\x1b[2J"); |
29 | printf("\x1b[37m"); | 28 | printf("\x1b[37m"); |
30 | printf("GBA Link Cable Dumper v1.6 by FIX94\n"); | 29 | printf("Pokemon Gen 3 GBA Multiboot PoC by slipstream/RoL\n"); |
31 | printf("Save Support based on SendSave by Chishm\n"); | 30 | printf("Based on GBA Link Cable Dumper by FIX94\n\n"); |
32 | printf("GBA BIOS Dumper by Dark Fader\n \n"); | ||
33 | } | 31 | } |
34 | 32 | ||
35 | u8 *resbuf,*cmdbuf; | 33 | u8 *resbuf,*cmdbuf; |
@@ -46,21 +44,17 @@ void acb(s32 res, u32 val) | |||
46 | resval = val; | 44 | resval = val; |
47 | } | 45 | } |
48 | 46 | ||
49 | unsigned int docrc(u32 crc, u32 val) | 47 | unsigned int docrc(u32 crc,u32 val) { |
50 | { | 48 | u32 result; |
51 | int i; | 49 | |
52 | for(i = 0; i < 0x20; i++) | 50 | result = val ^ crc; |
53 | { | 51 | for (int i = 0; i < 0x20; i++) { |
54 | if((crc^val)&1) | 52 | if (result & 1) { |
55 | { | 53 | result >>= 1; |
56 | crc>>=1; | 54 | result ^= 0xA1C1; |
57 | crc^=0xa1c1; | 55 | } else result >>= 1; |
58 | } | ||
59 | else | ||
60 | crc>>=1; | ||
61 | val>>=1; | ||
62 | } | 56 | } |
63 | return crc; | 57 | return result; |
64 | } | 58 | } |
65 | 59 | ||
66 | void endproc() | 60 | void endproc() |
@@ -70,64 +64,7 @@ void endproc() | |||
70 | VIDEO_WaitVSync(); | 64 | VIDEO_WaitVSync(); |
71 | exit(0); | 65 | exit(0); |
72 | } | 66 | } |
73 | void fixFName(char *str) | ||
74 | { | ||
75 | u8 i = 0; | ||
76 | for(i = 0; i < strlen(str); ++i) | ||
77 | { | ||
78 | if(str[i] < 0x20 || str[i] > 0x7F) | ||
79 | str[i] = '_'; | ||
80 | else switch(str[i]) | ||
81 | { | ||
82 | case '\\': | ||
83 | case '/': | ||
84 | case ':': | ||
85 | case '*': | ||
86 | case '?': | ||
87 | case '\"': | ||
88 | case '<': | ||
89 | case '>': | ||
90 | case '|': | ||
91 | str[i] = '_'; | ||
92 | break; | ||
93 | default: | ||
94 | break; | ||
95 | } | ||
96 | } | ||
97 | } | ||
98 | unsigned int calckey(unsigned int size) | ||
99 | { | ||
100 | unsigned int ret = 0; | ||
101 | size=(size-0x200) >> 3; | ||
102 | int res1 = (size&0x3F80) << 1; | ||
103 | res1 |= (size&0x4000) << 2; | ||
104 | res1 |= (size&0x7F); | ||
105 | res1 |= 0x380000; | ||
106 | int res2 = res1; | ||
107 | res1 = res2 >> 0x10; | ||
108 | int res3 = res2 >> 8; | ||
109 | res3 += res1; | ||
110 | res3 += res2; | ||
111 | res3 <<= 24; | ||
112 | res3 |= res2; | ||
113 | res3 |= 0x80808080; | ||
114 | 67 | ||
115 | if((res3&0x200) == 0) | ||
116 | { | ||
117 | ret |= (((res3)&0xFF)^0x4B)<<24; | ||
118 | ret |= (((res3>>8)&0xFF)^0x61)<<16; | ||
119 | ret |= (((res3>>16)&0xFF)^0x77)<<8; | ||
120 | ret |= (((res3>>24)&0xFF)^0x61); | ||
121 | } | ||
122 | else | ||
123 | { | ||
124 | ret |= (((res3)&0xFF)^0x73)<<24; | ||
125 | ret |= (((res3>>8)&0xFF)^0x65)<<16; | ||
126 | ret |= (((res3>>16)&0xFF)^0x64)<<8; | ||
127 | ret |= (((res3>>24)&0xFF)^0x6F); | ||
128 | } | ||
129 | return ret; | ||
130 | } | ||
131 | void doreset() | 68 | void doreset() |
132 | { | 69 | { |
133 | cmdbuf[0] = 0xFF; //reset | 70 | cmdbuf[0] = 0xFF; //reset |
@@ -135,6 +72,7 @@ void doreset() | |||
135 | SI_Transfer(1,cmdbuf,1,resbuf,3,transcb,SI_TRANS_DELAY); | 72 | SI_Transfer(1,cmdbuf,1,resbuf,3,transcb,SI_TRANS_DELAY); |
136 | while(transval == 0) ; | 73 | while(transval == 0) ; |
137 | } | 74 | } |
75 | |||
138 | void getstatus() | 76 | void getstatus() |
139 | { | 77 | { |
140 | cmdbuf[0] = 0; //status | 78 | cmdbuf[0] = 0; //status |
@@ -142,6 +80,7 @@ void getstatus() | |||
142 | SI_Transfer(1,cmdbuf,1,resbuf,3,transcb,SI_TRANS_DELAY); | 80 | SI_Transfer(1,cmdbuf,1,resbuf,3,transcb,SI_TRANS_DELAY); |
143 | while(transval == 0) ; | 81 | while(transval == 0) ; |
144 | } | 82 | } |
83 | |||
145 | u32 recv() | 84 | u32 recv() |
146 | { | 85 | { |
147 | memset(resbuf,0,32); | 86 | memset(resbuf,0,32); |
@@ -151,6 +90,7 @@ u32 recv() | |||
151 | while(transval == 0) ; | 90 | while(transval == 0) ; |
152 | return *(vu32*)resbuf; | 91 | return *(vu32*)resbuf; |
153 | } | 92 | } |
93 | |||
154 | void send(u32 msg) | 94 | void send(u32 msg) |
155 | { | 95 | { |
156 | cmdbuf[0]=0x15;cmdbuf[1]=(msg>>0)&0xFF;cmdbuf[2]=(msg>>8)&0xFF; | 96 | cmdbuf[0]=0x15;cmdbuf[1]=(msg>>0)&0xFF;cmdbuf[2]=(msg>>8)&0xFF; |
@@ -160,26 +100,7 @@ void send(u32 msg) | |||
160 | SI_Transfer(1,cmdbuf,5,resbuf,1,transcb,SI_TRANS_DELAY); | 100 | SI_Transfer(1,cmdbuf,5,resbuf,1,transcb,SI_TRANS_DELAY); |
161 | while(transval == 0) ; | 101 | while(transval == 0) ; |
162 | } | 102 | } |
163 | bool dirExists(const char *path) | 103 | |
164 | { | ||
165 | DIR *dir; | ||
166 | dir = opendir(path); | ||
167 | if(dir) | ||
168 | { | ||
169 | closedir(dir); | ||
170 | return true; | ||
171 | } | ||
172 | return false; | ||
173 | } | ||
174 | void createFile(const char *path, size_t size) | ||
175 | { | ||
176 | int fd = open(path, O_WRONLY|O_CREAT); | ||
177 | if(fd >= 0) | ||
178 | { | ||
179 | ftruncate(fd, size); | ||
180 | close(fd); | ||
181 | } | ||
182 | } | ||
183 | void warnError(char *msg) | 104 | void warnError(char *msg) |
184 | { | 105 | { |
185 | puts(msg); | 106 | puts(msg); |
@@ -195,6 +116,68 @@ void fatalError(char *msg) | |||
195 | sleep(5); | 116 | sleep(5); |
196 | exit(0); | 117 | exit(0); |
197 | } | 118 | } |
119 | |||
120 | u32 genKeyA() { | ||
121 | u32 retries = 0; | ||
122 | while (true) { | ||
123 | u32 key = 0; | ||
124 | if (retries > 32) { | ||
125 | key = 0xDD654321; | ||
126 | } else { | ||
127 | key = (rand() & 0x00ffffff) | 0xDD000000; | ||
128 | } | ||
129 | u32 unk = (key % 2 != 0); | ||
130 | u32 v12 = key; | ||
131 | for (u32 v13 = 1; v13 < 32; v13++) { | ||
132 | v12 >>= 1; | ||
133 | unk += (v12 % 2 != 0); | ||
134 | } | ||
135 | if ((unk >= 10 && unk <= 24)) { | ||
136 | if (retries > 4) printf("KeyA retries = %d",retries); | ||
137 | printf("KeyA = 0x%08x\n",key); | ||
138 | return key; | ||
139 | } | ||
140 | retries++; | ||
141 | } | ||
142 | } | ||
143 | |||
144 | u32 checkKeyB(u32 KeyBRaw) { | ||
145 | if ((KeyBRaw & 0xFF) != 0xEE) { | ||
146 | printf("Invalid KeyB - lowest 8 bits should be 0xEE, actually 0x%02x\n",((u8)(KeyBRaw))); | ||
147 | return 0; | ||
148 | } | ||
149 | u32 KeyB = KeyBRaw & 0xffffff00; | ||
150 | u32 val = KeyB; | ||
151 | u32 unk = (val < 0); | ||
152 | for (u32 i = 1; i < 24; i++) { | ||
153 | val <<= 1; | ||
154 | unk += (val < 0); | ||
155 | } | ||
156 | if (unk > 14) { | ||
157 | printf("Invalid KeyB - high 24 bits bad: 0x%08x\n",KeyB); | ||
158 | return 0; | ||
159 | } | ||
160 | printf("Valid KeyB: 0x%08x\n",KeyB); | ||
161 | return KeyB; | ||
162 | } | ||
163 | |||
164 | u32 deriveKeyC(u32 keyCderive, u32 kcrc) { | ||
165 | u32 keyc = 0; | ||
166 | u32 keyCi = 0; | ||
167 | do { | ||
168 | u32 v5 = 0x1000000 * keyCi - 1; | ||
169 | u32 keyCattempt = docrc(kcrc,v5); | ||
170 | //printf("i = %d; keyCderive = %08x; keyCattempt = %08x\n",keyCi,keyCderive,keyCattempt); | ||
171 | if (keyCderive == keyCattempt) { | ||
172 | keyc = v5; | ||
173 | printf("Found keyC: %08x\n",keyc); | ||
174 | return keyc; | ||
175 | } | ||
176 | keyCi++; | ||
177 | } while (keyCi < 256); | ||
178 | return keyc; | ||
179 | } | ||
180 | |||
198 | int main(int argc, char *argv[]) | 181 | int main(int argc, char *argv[]) |
199 | { | 182 | { |
200 | void *xfb = NULL; | 183 | void *xfb = NULL; |
@@ -216,19 +199,6 @@ int main(int argc, char *argv[]) | |||
216 | PAD_Init(); | 199 | PAD_Init(); |
217 | cmdbuf = memalign(32,32); | 200 | cmdbuf = memalign(32,32); |
218 | resbuf = memalign(32,32); | 201 | resbuf = memalign(32,32); |
219 | u8 *testdump = memalign(32,0x400000); | ||
220 | if(!testdump) return 0; | ||
221 | if(!fatInitDefault()) | ||
222 | { | ||
223 | printmain(); | ||
224 | fatalError("ERROR: No usable device found to write dumped files to!"); | ||
225 | } | ||
226 | mkdir("/dumps", S_IREAD | S_IWRITE); | ||
227 | if(!dirExists("/dumps")) | ||
228 | { | ||
229 | printmain(); | ||
230 | fatalError("ERROR: Could not create dumps folder, make sure you have a supported device connected!"); | ||
231 | } | ||
232 | int i; | 202 | int i; |
233 | while(1) | 203 | while(1) |
234 | { | 204 | { |
@@ -251,305 +221,98 @@ int main(int argc, char *argv[]) | |||
251 | } | 221 | } |
252 | PAD_ScanPads(); | 222 | PAD_ScanPads(); |
253 | VIDEO_WaitVSync(); | 223 | VIDEO_WaitVSync(); |
254 | if(PAD_ButtonsHeld(0)) | 224 | if(PAD_ButtonsDown(0) & PAD_BUTTON_START) |
255 | endproc(); | 225 | endproc(); |
256 | } | 226 | } |
257 | if(resval & SI_GBA) | 227 | if (resval & SI_GBA) |
258 | { | 228 | { |
259 | printf("GBA Found! Waiting on BIOS\n"); | 229 | printf("GBA Found! Waiting on BIOS\n"); |
260 | resbuf[2]=0; | 230 | resbuf[2]=0; |
261 | while(!(resbuf[2]&0x10)) | 231 | u32 oldresult = 0; |
232 | u32 newresult = 0; | ||
233 | // wait for the BIOS to hand over to the game | ||
234 | do { | ||
235 | doreset(); | ||
236 | } while (!(resbuf[1] > 4)); | ||
237 | printf("BIOS handed over to game, waiting on game\n"); | ||
238 | do | ||
262 | { | 239 | { |
263 | doreset(); | 240 | doreset(); |
264 | getstatus(); | 241 | } while((resbuf[0] != 0) || !(resbuf[2]&0x10)); |
265 | } | 242 | // receive the game-code from GBA side. |
266 | printf("Ready, sending dumper\n"); | 243 | u32 gamecode = recv(); |
244 | printf("Ready, sending multiboot ROM\n"); | ||
267 | unsigned int sendsize = ((gba_mb_gba_size+7)&~7); | 245 | unsigned int sendsize = ((gba_mb_gba_size+7)&~7); |
268 | unsigned int ourkey = calckey(sendsize); | 246 | // generate KeyA |
247 | unsigned int ourkey = genKeyA(); | ||
269 | //printf("Our Key: %08x\n", ourkey); | 248 | //printf("Our Key: %08x\n", ourkey); |
270 | //get current sessionkey | 249 | printf("Sending game code that we got: 0x%08x\n",__builtin_bswap32(gamecode)); |
271 | u32 sessionkeyraw = recv(); | 250 | // send the game code back, then KeyA. |
272 | u32 sessionkey = __builtin_bswap32(sessionkeyraw^0x7365646F); | 251 | send(__builtin_bswap32(gamecode)); |
273 | //send over our own key | 252 | send(ourkey); |
274 | send(__builtin_bswap32(ourkey)); | 253 | // get KeyB from GBA, check it to make sure its valid, then xor with KeyA to derive the initial CRC value and the sessionkey. |
275 | unsigned int fcrc = 0x15a0; | 254 | u32 sessionkeyraw = 0; |
276 | //send over gba header | 255 | do { |
277 | for(i = 0; i < 0xC0; i+=4) | 256 | sessionkeyraw = recv(); |
278 | send(__builtin_bswap32(*(vu32*)(gba_mb_gba+i))); | 257 | } while (sessionkeyraw == gamecode); |
279 | //printf("Header done! Sending ROM...\n"); | 258 | sessionkeyraw = checkKeyB(__builtin_bswap32(sessionkeyraw)); |
280 | for(i = 0xC0; i < sendsize; i+=4) | 259 | u32 sessionkey = sessionkeyraw ^ ourkey; |
260 | u32 kcrc = sessionkey; | ||
261 | printf("start kCRC=%08x\n",kcrc); | ||
262 | sessionkey = (sessionkey*0x6177614b)+1; | ||
263 | // send hacked up send-size in uint32s | ||
264 | u32 hackedupsize = (sendsize >> 3) - 1; | ||
265 | printf("Sending hacked up size 0x%08x\n",hackedupsize); | ||
266 | send(hackedupsize); | ||
267 | //unsigned int fcrc = 0x00bb; | ||
268 | // send over multiboot binary header, in the clear until the end of the nintendo logo. | ||
269 | // GBA checks this, if nintendo logo does not match the one in currently inserted cart's ROM, it will not accept any more data. | ||
270 | for(i = 0; i < 0xA0; i+=4) { | ||
271 | vu32 rom_dword = *(vu32*)(gba_mb_gba+i); | ||
272 | send(__builtin_bswap32(rom_dword)); | ||
273 | } | ||
274 | printf("\n"); | ||
275 | printf("Header done! Sending ROM...\n"); | ||
276 | // Add each uint32 of the multiboot image to the checksum, encrypt the uint32 with the session key, increment the session key, send the encrypted uint32. | ||
277 | for(i = 0xA0; i < sendsize; i+=4) | ||
281 | { | 278 | { |
282 | u32 enc = ((gba_mb_gba[i+3]<<24)|(gba_mb_gba[i+2]<<16)|(gba_mb_gba[i+1]<<8)|(gba_mb_gba[i])); | 279 | u32 dec = ( |
283 | fcrc=docrc(fcrc,enc); | 280 | ((gba_mb_gba[i+3]) << 24) & 0xff000000 | |
281 | ((gba_mb_gba[i+2]) << 16) & 0x00ff0000 | | ||
282 | ((gba_mb_gba[i+1]) << 8) & 0x0000ff00 | | ||
283 | ((gba_mb_gba[i]) << 0) & 0x000000ff | ||
284 | ); | ||
285 | u32 enc = (dec - kcrc) ^ sessionkey; | ||
286 | kcrc=docrc(kcrc,dec); | ||
284 | sessionkey = (sessionkey*0x6177614B)+1; | 287 | sessionkey = (sessionkey*0x6177614B)+1; |
285 | enc^=sessionkey; | 288 | //enc^=((~(i+(0x20<<20)))+1); |
286 | enc^=((~(i+(0x20<<20)))+1); | 289 | //enc^=0x6f646573;//0x20796220; |
287 | enc^=0x20796220; | ||
288 | send(enc); | 290 | send(enc); |
289 | } | 291 | } |
290 | fcrc |= (sendsize<<16); | 292 | //fcrc |= (sendsize<<16); |
291 | //printf("ROM done! CRC: %08x\n", fcrc); | 293 | printf("ROM done! CRC: %08x\n", kcrc); |
292 | //send over CRC | ||
293 | sessionkey = (sessionkey*0x6177614B)+1; | ||
294 | fcrc^=sessionkey; | ||
295 | fcrc^=((~(i+(0x20<<20)))+1); | ||
296 | fcrc^=0x20796220; | ||
297 | send(fcrc); | ||
298 | //get crc back (unused) | 294 | //get crc back (unused) |
299 | recv(); | 295 | // Get KeyC derivation material from GBA (eventually) |
300 | printf("Done!\n"); | 296 | u32 keyCderive = 0; |
301 | sleep(2); | 297 | do { |
302 | //hm | 298 | keyCderive = recv(); |
303 | while(1) | 299 | } while (keyCderive <= 0xfeffffff); |
304 | { | 300 | keyCderive = __builtin_bswap32(keyCderive); |
305 | printmain(); | 301 | keyCderive >>= 8; |
306 | printf("Press A once you have a GBA Game inserted.\n"); | 302 | printf("KeyC derivation material: %08x\n",keyCderive); |
307 | printf("Press Y to backup the GBA BIOS.\n \n"); | 303 | |
308 | PAD_ScanPads(); | 304 | // (try to) find the KeyC, using the checksum of the multiboot image, and the derivation material that GBA sent to us |
309 | VIDEO_WaitVSync(); | 305 | |
310 | u32 btns = PAD_ButtonsDown(0); | 306 | u32 keyc = deriveKeyC(keyCderive,kcrc); |
311 | if(btns&PAD_BUTTON_START) | 307 | if (keyc == 0) printf("Could not find keyC - kcrc=0x%08x\n",kcrc); |
312 | endproc(); | 308 | |
313 | else if(btns&PAD_BUTTON_A) | 309 | // derive the boot key from the found KeyC, and send to GBA. if this is not correct, GBA will not jump to the multiboot image it was sent. |
314 | { | 310 | u32 bootkey = docrc(0xBB,keyc) | 0xbb000000; |
315 | if(recv() == 0) //ready | 311 | printf("BootKey = 0x%08x\n",bootkey); |
316 | { | 312 | send(bootkey); |
317 | printf("Waiting for GBA\n"); | 313 | |
318 | VIDEO_WaitVSync(); | 314 | printf("Done! Press any key to start sending again.\n"); |
319 | int gbasize = 0; | 315 | do { PAD_ScanPads(); } while (!PAD_ButtonsDown(0)); |
320 | while(gbasize == 0) | ||
321 | gbasize = __builtin_bswap32(recv()); | ||
322 | send(0); //got gbasize | ||
323 | u32 savesize = __builtin_bswap32(recv()); | ||
324 | send(0); //got savesize | ||
325 | if(gbasize == -1) | ||
326 | { | ||
327 | warnError("ERROR: No (Valid) GBA Card inserted!\n"); | ||
328 | continue; | ||
329 | } | ||
330 | //get rom header | ||
331 | for(i = 0; i < 0xC0; i+=4) | ||
332 | *(vu32*)(testdump+i) = recv(); | ||
333 | //print out all the info from the game | ||
334 | printf("Game Name: %.12s\n",(char*)(testdump+0xA0)); | ||
335 | printf("Game ID: %.4s\n",(char*)(testdump+0xAC)); | ||
336 | printf("Company ID: %.2s\n",(char*)(testdump+0xB0)); | ||
337 | printf("ROM Size: %02.02f MB\n",((float)(gbasize/1024))/1024.f); | ||
338 | if(savesize > 0) | ||
339 | printf("Save Size: %02.02f KB\n \n",((float)(savesize))/1024.f); | ||
340 | else | ||
341 | printf("No Save File\n \n"); | ||
342 | //generate file paths | ||
343 | char gamename[64]; | ||
344 | sprintf(gamename,"/dumps/%.12s [%.4s%.2s].gba", | ||
345 | (char*)(testdump+0xA0),(char*)(testdump+0xAC),(char*)(testdump+0xB0)); | ||
346 | fixFName(gamename+7); //fix name behind "/dumps/" | ||
347 | char savename[64]; | ||
348 | sprintf(savename,"/dumps/%.12s [%.4s%.2s].sav", | ||
349 | (char*)(testdump+0xA0),(char*)(testdump+0xAC),(char*)(testdump+0xB0)); | ||
350 | fixFName(savename+7); //fix name behind "/dumps/" | ||
351 | //let the user choose the option | ||
352 | printf("Press A to dump this game, it will take about %i minutes.\n",gbasize/1024/1024*3/2); | ||
353 | printf("Press B if you want to cancel dumping this game.\n"); | ||
354 | if(savesize > 0) | ||
355 | { | ||
356 | printf("Press Y to backup this save file.\n"); | ||
357 | printf("Press X to restore this save file.\n"); | ||
358 | printf("Press Z to clear the save file on the GBA Cartridge.\n\n"); | ||
359 | } | ||
360 | else | ||
361 | printf("\n"); | ||
362 | int command = 0; | ||
363 | while(1) | ||
364 | { | ||
365 | PAD_ScanPads(); | ||
366 | VIDEO_WaitVSync(); | ||
367 | u32 btns = PAD_ButtonsDown(0); | ||
368 | if(btns&PAD_BUTTON_START) | ||
369 | endproc(); | ||
370 | else if(btns&PAD_BUTTON_A) | ||
371 | { | ||
372 | command = 1; | ||
373 | break; | ||
374 | } | ||
375 | else if(btns&PAD_BUTTON_B) | ||
376 | break; | ||
377 | else if(savesize > 0) | ||
378 | { | ||
379 | if(btns&PAD_BUTTON_Y) | ||
380 | { | ||
381 | command = 2; | ||
382 | break; | ||
383 | } | ||
384 | else if(btns&PAD_BUTTON_X) | ||
385 | { | ||
386 | command = 3; | ||
387 | break; | ||
388 | } | ||
389 | else if(btns&PAD_TRIGGER_Z) | ||
390 | { | ||
391 | command = 4; | ||
392 | break; | ||
393 | } | ||
394 | } | ||
395 | } | ||
396 | if(command == 1) | ||
397 | { | ||
398 | FILE *f = fopen(gamename,"rb"); | ||
399 | if(f) | ||
400 | { | ||
401 | fclose(f); | ||
402 | command = 0; | ||
403 | warnError("ERROR: Game already dumped!\n"); | ||
404 | } | ||
405 | } | ||
406 | else if(command == 2) | ||
407 | { | ||
408 | FILE *f = fopen(savename,"rb"); | ||
409 | if(f) | ||
410 | { | ||
411 | fclose(f); | ||
412 | command = 0; | ||
413 | warnError("ERROR: Save already backed up!\n"); | ||
414 | } | ||
415 | } | ||
416 | else if(command == 3) | ||
417 | { | ||
418 | size_t readsize = 0; | ||
419 | FILE *f = fopen(savename,"rb"); | ||
420 | if(f) | ||
421 | { | ||
422 | fseek(f,0,SEEK_END); | ||
423 | readsize = ftell(f); | ||
424 | if(readsize != savesize) | ||
425 | { | ||
426 | command = 0; | ||
427 | warnError("ERROR: Save has the wrong size, aborting restore!\n"); | ||
428 | } | ||
429 | else | ||
430 | { | ||
431 | rewind(f); | ||
432 | fread(testdump,readsize,1,f); | ||
433 | } | ||
434 | fclose(f); | ||
435 | } | ||
436 | else | ||
437 | { | ||
438 | command = 0; | ||
439 | warnError("ERROR: No Save to restore!\n"); | ||
440 | } | ||
441 | } | ||
442 | send(command); | ||
443 | //let gba prepare | ||
444 | sleep(1); | ||
445 | if(command == 0) | ||
446 | continue; | ||
447 | else if(command == 1) | ||
448 | { | ||
449 | //create base file with size | ||
450 | printf("Preparing file...\n"); | ||
451 | createFile(gamename,gbasize); | ||
452 | FILE *f = fopen(gamename,"wb"); | ||
453 | if(!f) | ||
454 | fatalError("ERROR: Could not create file! Exit..."); | ||
455 | printf("Dumping...\n"); | ||
456 | u32 bytes_read = 0; | ||
457 | while(gbasize > 0) | ||
458 | { | ||
459 | int toread = (gbasize > 0x400000 ? 0x400000 : gbasize); | ||
460 | int j; | ||
461 | for(j = 0; j < toread; j+=4) | ||
462 | { | ||
463 | *(vu32*)(testdump+j) = recv(); | ||
464 | bytes_read+=4; | ||
465 | if((bytes_read&0xFFFF) == 0) | ||
466 | printf("\r%02.02f MB done",(float)(bytes_read/1024)/1024.f); | ||
467 | } | ||
468 | fwrite(testdump,toread,1,f); | ||
469 | gbasize -= toread; | ||
470 | } | ||
471 | printf("\nClosing file\n"); | ||
472 | fclose(f); | ||
473 | printf("Game dumped!\n"); | ||
474 | sleep(5); | ||
475 | } | ||
476 | else if(command == 2) | ||
477 | { | ||
478 | //create base file with size | ||
479 | printf("Preparing file...\n"); | ||
480 | createFile(savename,savesize); | ||
481 | FILE *f = fopen(savename,"wb"); | ||
482 | if(!f) | ||
483 | fatalError("ERROR: Could not create file! Exit..."); | ||
484 | printf("Waiting for GBA\n"); | ||
485 | VIDEO_WaitVSync(); | ||
486 | u32 readval = 0; | ||
487 | while(readval != savesize) | ||
488 | readval = __builtin_bswap32(recv()); | ||
489 | send(0); //got savesize | ||
490 | printf("Receiving...\n"); | ||
491 | for(i = 0; i < savesize; i+=4) | ||
492 | *(vu32*)(testdump+i) = recv(); | ||
493 | printf("Writing save...\n"); | ||
494 | fwrite(testdump,savesize,1,f); | ||
495 | fclose(f); | ||
496 | printf("Save backed up!\n"); | ||
497 | sleep(5); | ||
498 | } | ||
499 | else if(command == 3 || command == 4) | ||
500 | { | ||
501 | u32 readval = 0; | ||
502 | while(readval != savesize) | ||
503 | readval = __builtin_bswap32(recv()); | ||
504 | if(command == 3) | ||
505 | { | ||
506 | printf("Sending save\n"); | ||
507 | VIDEO_WaitVSync(); | ||
508 | for(i = 0; i < savesize; i+=4) | ||
509 | send(__builtin_bswap32(*(vu32*)(testdump+i))); | ||
510 | } | ||
511 | printf("Waiting for GBA\n"); | ||
512 | while(recv() != 0) | ||
513 | VIDEO_WaitVSync(); | ||
514 | printf(command == 3 ? "Save restored!\n" : "Save cleared!\n"); | ||
515 | send(0); | ||
516 | sleep(5); | ||
517 | } | ||
518 | } | ||
519 | } | ||
520 | else if(btns&PAD_BUTTON_Y) | ||
521 | { | ||
522 | const char *biosname = "/dumps/gba_bios.bin"; | ||
523 | FILE *f = fopen(biosname,"rb"); | ||
524 | if(f) | ||
525 | { | ||
526 | fclose(f); | ||
527 | warnError("ERROR: BIOS already backed up!\n"); | ||
528 | } | ||
529 | else | ||
530 | { | ||
531 | //create base file with size | ||
532 | printf("Preparing file...\n"); | ||
533 | createFile(biosname,0x4000); | ||
534 | f = fopen(biosname,"wb"); | ||
535 | if(!f) | ||
536 | fatalError("ERROR: Could not create file! Exit..."); | ||
537 | //send over bios dump command | ||
538 | send(5); | ||
539 | //the gba might still be in a loop itself | ||
540 | sleep(1); | ||
541 | //lets go! | ||
542 | printf("Dumping...\n"); | ||
543 | for(i = 0; i < 0x4000; i+=4) | ||
544 | *(vu32*)(testdump+i) = recv(); | ||
545 | fwrite(testdump,0x4000,1,f); | ||
546 | printf("Closing file\n"); | ||
547 | fclose(f); | ||
548 | printf("BIOS dumped!\n"); | ||
549 | sleep(5); | ||
550 | } | ||
551 | } | ||
552 | } | ||
553 | } | 316 | } |
554 | } | 317 | } |
555 | return 0; | 318 | return 0; |