mirror of
https://github.com/FIX94/gba-link-cable-dumper.git
synced 2026-04-25 07:38:53 -05:00
-make sure to correct filenames with invalid filesystem characters (issue #3)
-corrected the si transfer delay code to only have one properly set delay
This commit is contained in:
FIX94
parent
089ba86faf
commit
098b3d74b9
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@ -56,7 +56,7 @@ int main(void) {
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// ansi escape sequence to set print co-ordinates
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// /x1b[line;columnH
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u32 i;
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iprintf("\x1b[9;2HGBA Link Cable Dumper v1.4\n");
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iprintf("\x1b[9;2HGBA Link Cable Dumper v1.5\n");
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iprintf("\x1b[10;4HPlease look at the TV\n");
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// disable this, needs power
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SNDSTAT = 0;
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145
source/main.c
145
source/main.c
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@ -16,6 +16,10 @@
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#include <dirent.h>
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#include <fat.h>
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//from my tests 50us seems to be the lowest
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//safe si transfer delay in between calls
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#define SI_TRANS_DELAY 50
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extern u8 gba_mb_gba[];
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extern u32 gba_mb_gba_size;
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@ -23,25 +27,12 @@ void printmain()
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{
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printf("\x1b[2J");
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printf("\x1b[37m");
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printf("GBA Link Cable Dumper v1.4 by FIX94\n");
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printf("GBA Link Cable Dumper v1.5 by FIX94\n");
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printf("Save Support based on SendSave by Chishm\n");
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printf("GBA BIOS Dumper by Dark Fader\n \n");
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}
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u8 *resbuf,*cmdbuf;
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volatile u16 pads = 0;
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volatile bool ctrlerr = false;
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void ctrlcb(s32 chan, u32 ret)
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{
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if(ret)
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{
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ctrlerr = true;
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return;
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}
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//just call us again
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pads = (~((resbuf[1]<<8)|resbuf[0]))&0x3FF;
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SI_Transfer(1,cmdbuf,1,resbuf,5,ctrlcb,350);
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}
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volatile u32 transval = 0;
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void transcb(s32 chan, u32 ret)
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@ -72,12 +63,6 @@ unsigned int docrc(u32 crc, u32 val)
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return crc;
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}
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static inline void wait_for_transfer()
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{
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//350 is REALLY pushing it already, cant go further
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do{ usleep(350); }while(transval == 0);
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}
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void endproc()
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{
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printf("Start pressed, exit\n");
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@ -85,6 +70,31 @@ void endproc()
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VIDEO_WaitVSync();
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exit(0);
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}
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void fixFName(char *str)
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{
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u8 i = 0;
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for(i = 0; i < strlen(str); ++i)
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{
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if(str[i] < 0x20 || str[i] > 0x7F)
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str[i] = '_';
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else switch(str[i])
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{
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case '\\':
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case '/':
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case ':':
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case '*':
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case '?':
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case '\"':
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case '<':
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case '>':
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case '|':
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str[i] = '_';
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break;
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default:
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break;
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}
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}
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}
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unsigned int calckey(unsigned int size)
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{
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unsigned int ret = 0;
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@ -122,48 +132,33 @@ void doreset()
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{
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cmdbuf[0] = 0xFF; //reset
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transval = 0;
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SI_Transfer(1,cmdbuf,1,resbuf,3,transcb,0);
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wait_for_transfer();
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SI_Transfer(1,cmdbuf,1,resbuf,3,transcb,SI_TRANS_DELAY);
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while(transval == 0) ;
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}
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void getstatus()
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{
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cmdbuf[0] = 0; //status
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transval = 0;
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SI_Transfer(1,cmdbuf,1,resbuf,3,transcb,0);
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wait_for_transfer();
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SI_Transfer(1,cmdbuf,1,resbuf,3,transcb,SI_TRANS_DELAY);
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while(transval == 0) ;
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}
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u32 recvsafe()
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u32 recv()
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{
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memset(resbuf,0,32);
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cmdbuf[0]=0x14; //read
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transval = 0;
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SI_Transfer(1,cmdbuf,1,resbuf,5,transcb,0);
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wait_for_transfer();
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SI_Transfer(1,cmdbuf,1,resbuf,5,transcb,SI_TRANS_DELAY);
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while(transval == 0) ;
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return *(vu32*)resbuf;
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}
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void sendsafe(u32 msg)
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void send(u32 msg)
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{
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cmdbuf[0]=0x15;cmdbuf[1]=(msg>>0)&0xFF;cmdbuf[2]=(msg>>8)&0xFF;
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cmdbuf[3]=(msg>>16)&0xFF;cmdbuf[4]=(msg>>24)&0xFF;
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transval = 0;
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resbuf[0] = 0;
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SI_Transfer(1,cmdbuf,5,resbuf,1,transcb,0);
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wait_for_transfer();
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}
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void sendsafe_wait(u32 msg)
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{
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sendsafe(msg);
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//wait for GBA
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usleep(5000);
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}
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u32 recvfast()
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{
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cmdbuf[0]=0x14; //read
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transval = 0;
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SI_Transfer(1,cmdbuf,1,resbuf,5,transcb,0);
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usleep(275);
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SI_Transfer(1,cmdbuf,5,resbuf,1,transcb,SI_TRANS_DELAY);
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while(transval == 0) ;
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return *(vu32*)resbuf;
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}
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bool dirExists(const char *path)
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{
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@ -240,7 +235,6 @@ int main(int argc, char *argv[])
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printmain();
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printf("Waiting for a GBA in port 2...\n");
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resval = 0;
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ctrlerr = false;
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SI_GetTypeAsync(1,acb);
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while(1)
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@ -274,17 +268,14 @@ int main(int argc, char *argv[])
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unsigned int ourkey = calckey(sendsize);
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//printf("Our Key: %08x\n", ourkey);
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//get current sessionkey
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u32 sessionkeyraw = recvsafe();
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u32 sessionkeyraw = recv();
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u32 sessionkey = __builtin_bswap32(sessionkeyraw^0x7365646F);
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//send over our own key
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sendsafe(__builtin_bswap32(ourkey));
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send(__builtin_bswap32(ourkey));
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unsigned int fcrc = 0x15a0;
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//send over gba header
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for(i = 0; i < 0xC0; i+=4)
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{
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sendsafe(__builtin_bswap32(*(vu32*)(gba_mb_gba+i)));
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//if(!(resbuf[0]&0x2)) printf("Possible error %02x\n",resbuf[0]);
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}
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send(__builtin_bswap32(*(vu32*)(gba_mb_gba+i)));
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//printf("Header done! Sending ROM...\n");
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for(i = 0xC0; i < sendsize; i+=4)
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{
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@ -294,8 +285,7 @@ int main(int argc, char *argv[])
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enc^=sessionkey;
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enc^=((~(i+(0x20<<20)))+1);
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enc^=0x20796220;
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sendsafe(enc);
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//if(!(resbuf[0]&0x2)) printf("Possible error %02x\n",resbuf[0]);
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send(enc);
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}
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fcrc |= (sendsize<<16);
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//printf("ROM done! CRC: %08x\n", fcrc);
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@ -304,9 +294,9 @@ int main(int argc, char *argv[])
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fcrc^=sessionkey;
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fcrc^=((~(i+(0x20<<20)))+1);
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fcrc^=0x20796220;
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sendsafe(fcrc);
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send(fcrc);
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//get crc back (unused)
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recvsafe();
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recv();
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printf("Done!\n");
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sleep(2);
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//hm
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@ -322,16 +312,16 @@ int main(int argc, char *argv[])
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endproc();
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else if(btns&PAD_BUTTON_A)
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{
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if(recvsafe() == 0) //ready
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if(recv() == 0) //ready
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{
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printf("Waiting for GBA\n");
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VIDEO_WaitVSync();
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int gbasize = 0;
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while(gbasize == 0)
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gbasize = __builtin_bswap32(recvsafe());
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sendsafe_wait(0); //got gbasize
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u32 savesize = __builtin_bswap32(recvsafe());
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sendsafe_wait(0); //got savesize
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gbasize = __builtin_bswap32(recv());
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send(0); //got gbasize
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u32 savesize = __builtin_bswap32(recv());
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send(0); //got savesize
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if(gbasize == -1)
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{
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warnError("ERROR: No (Valid) GBA Card inserted!\n");
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@ -339,7 +329,7 @@ int main(int argc, char *argv[])
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}
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//get rom header
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for(i = 0; i < 0xC0; i+=4)
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*(vu32*)(testdump+i) = recvfast();
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*(vu32*)(testdump+i) = recv();
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//print out all the info from the game
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printf("Game Name: %.12s\n",(char*)(testdump+0xA0));
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printf("Game ID: %.4s\n",(char*)(testdump+0xAC));
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@ -353,9 +343,11 @@ int main(int argc, char *argv[])
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char gamename[64];
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sprintf(gamename,"/dumps/%.12s [%.4s%.2s].gba",
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(char*)(testdump+0xA0),(char*)(testdump+0xAC),(char*)(testdump+0xB0));
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fixFName(gamename+7); //fix name behind "/dumps/"
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char savename[64];
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sprintf(savename,"/dumps/%.12s [%.4s%.2s].sav",
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(char*)(testdump+0xA0),(char*)(testdump+0xAC),(char*)(testdump+0xB0));
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fixFName(savename+7); //fix name behind "/dumps/"
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//let the user choose the option
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printf("Press A to dump this game, it will take about %i minutes.\n",gbasize/1024/1024*3/2);
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printf("Press B if you want to cancel dumping this game.\n");
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@ -441,7 +433,9 @@ int main(int argc, char *argv[])
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warnError("ERROR: No Save to restore!\n");
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}
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}
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sendsafe_wait(command);
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send(command);
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//let gba prepare
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sleep(1);
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if(command == 0)
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continue;
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else if(command == 1)
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@ -460,7 +454,7 @@ int main(int argc, char *argv[])
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int j;
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for(j = 0; j < toread; j+=4)
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{
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*(vu32*)(testdump+j) = recvfast();
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*(vu32*)(testdump+j) = recv();
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bytes_read+=4;
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if((bytes_read&0xFFFF) == 0)
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printf("\r%02.02f MB done",(float)(bytes_read/1024)/1024.f);
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@ -485,11 +479,11 @@ int main(int argc, char *argv[])
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VIDEO_WaitVSync();
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u32 readval = 0;
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while(readval != savesize)
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readval = __builtin_bswap32(recvsafe());
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sendsafe_wait(0); //got savesize
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readval = __builtin_bswap32(recv());
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send(0); //got savesize
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printf("Receiving...\n");
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for(i = 0; i < savesize; i+=4)
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*(vu32*)(testdump+i) = recvsafe();
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*(vu32*)(testdump+i) = recv();
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printf("Writing save...\n");
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fwrite(testdump,savesize,1,f);
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fclose(f);
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@ -502,22 +496,21 @@ int main(int argc, char *argv[])
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VIDEO_WaitVSync();
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u32 readval = 0;
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while(readval != savesize)
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readval = __builtin_bswap32(recvsafe());
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readval = __builtin_bswap32(recv());
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for(i = 0; i < savesize; i+=4)
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sendsafe(__builtin_bswap32(*(vu32*)(testdump+i)));
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send(__builtin_bswap32(*(vu32*)(testdump+i)));
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printf("Waiting for GBA\n");
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while(recvsafe() != 0)
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while(recv() != 0)
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VIDEO_WaitVSync();
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printf("Save restored!\n");
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sendsafe_wait(0);
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send(0);
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sleep(5);
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}
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}
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}
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else if(btns&PAD_BUTTON_Y)
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{
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char biosname[64];
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sprintf(biosname,"/dumps/gba_bios.bin");
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const char *biosname = "/dumps/gba_bios.bin";
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FILE *f = fopen(biosname,"rb");
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if(f)
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{
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@ -533,15 +526,13 @@ int main(int argc, char *argv[])
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if(!f)
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fatalError("ERROR: Could not create file! Exit...");
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//send over bios dump command
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sendsafe_wait(4);
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send(4);
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//the gba might still be in a loop itself
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VIDEO_WaitVSync(); VIDEO_WaitVSync();
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VIDEO_WaitVSync(); VIDEO_WaitVSync();
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VIDEO_WaitVSync(); VIDEO_WaitVSync();
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sleep(1);
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//lets go!
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printf("Dumping...\n");
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for(i = 0; i < 0x4000; i+=4)
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*(vu32*)(testdump+i) = recvsafe();
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*(vu32*)(testdump+i) = recv();
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fwrite(testdump,0x4000,1,f);
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printf("Closing file\n");
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fclose(f);
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