Homebrew Homebrew Development

[Rinnegatamante]

Does someone knows how IR service works with ctrulib? (For example: https://github.com/smealum/ctrulib/blob/master/libctru/include/3ds/services/ir.h what flag is for RecvData).

I tried to write a simple string sender/receiver without success. These are the functions i wrote to test but i get no data received:

static int lua_receive(lua_State *L){
    int argc = lua_gettop(L);
    if (argc != 0) return luaL_error(L, "wrong number of arguments");
    char result[2048];
    u32 received_bytes = 0;
    while (received_bytes == 0){
        IRU_RecvData((u8*)&result, 2048, 0x00, &received_bytes, 1);
    }
    u32 confirm = 0xDEAD;
    IRU_SendData((u8*)confirm, 4, 1);
    lua_pushlstring(L,result,received_bytes);
    return 1;
}
 
static int lua_send(lua_State *L){
    int argc = lua_gettop(L);
    if (argc != 1) return luaL_error(L, "wrong number of arguments");
    const char *data = luaL_checkstring(L, 1);
    u32 result = 0x0000;
    u32 received_bytes;
    while (result != 0xDEAD){
        IRU_SendData((u8*)data, strlen(data), 1);
        IRU_RecvData((u8*)&result, 4, 0x00, &received_bytes, 1);
    }
    return 0;
}

 

[Suiginou]

u32 pid;
svcGetProcessId(&pid, 0xFFFF8001);

svcGetProcessId is defined by ctrulib and gets linked in:

.global svcGetProcessId
.type svcGetProcessId, %function
svcGetProcessId:
	str r0, [sp, #-0x4]!
	svc 0x35
	ldr r3, [sp], #4
	str r1, [r3]
	bx  lr

The code freezes at the svcGetProcessId call if run from spider LoadCode. Any hints as to what might be going wrong?

 

[AtlanticBit]

is there a way to get stuff from romfs using ctrulib? i built my romfs using ctr sdk 4.2.8 so now i want to read data of it. thanks.

 

[Marco D]

Team please help!!!

I was using AntonioN Audio Code to play raw audio data
sound.c

https://www.dropbox.com/s/wilzynhpuixtqu8/sound.c?dl=0

sound.h

https://www.dropbox.com/s/hk3b0ejwm8hzqit/sound.h?dl=0

Could you please help me create a function to stop looping sound called by int Sound_PlaySfx(int ref).

I give it a shot but i was unable to stop audio CSND_SetPlayState, CSND_sharedmemtype0_cmdupdatestate(0); and to memset(framebuf, x, y); (remember im a noob)

 

[Arisotura]

Has anyone looked into using CTRAging's exheader for Gateway (.3ds) homebrew? It has access to CSND, as well as all the services you need for sane userland homebrew. The parameters are that of a regular application, so the home menu shouldn't throw it out, either.

I guess it'd be nice to get a New3DS CTRAging, though. That would have access to the New3DS-specific services.

 

[Rinnegatamante]

Has anyone looked into using CTRAging's exheader for Gateway (.3ds) homebrew? It has access to CSND, as well as all the services you need for sane userland homebrew. The parameters are that of a regular application, so the home menu shouldn't throw it out, either.

I guess it'd be nice to get a New3DS CTRAging, though. That would have access to the New3DS-specific services.

Don't know what CTRAging is but lpp-3ds is compiled in .3ds build with ns:s, am:u and csnd:SND services access. ( https://github.com/Rinnegatamante/lpp-3ds/blob/master/gw_workaround.rsf )

 

[daxtsu]

Don't know what CTRAging is but lpp-3ds is compiled in .3ds build with ns:s, am:u and csnd:SND services access. ( https://github.com/Rinnegatamante/lpp-3ds/blob/master/gw_workaround.rsf )

http://www.3dbrew.org/wiki/Factory_Setup Apparently it's a test program they use at Nintendo's factories, and it can be recovered from a NAND dump (maybe only on brand new 3DSes)?

 

[Arisotura]

Yeah. I was able to recover it from a dump of my NAND. The code is partially corrupted though, but the exheader is intact.


Didn't know it was possible to get around the signed exheader requirement for .3ds files, though. Interesting.

 

[Rinnegatamante]

Yeah. I was able to recover it from a dump of my NAND. The code is partially corrupted though, but the exheader is intact.


Didn't know it was possible to get around the signed exheader requirement for .3ds files, though. Interesting.

As said also in Legohax thread, you just have to modify Descriptor in your workaround. It's encoded as a BASE64 string.
You can also use an online converter to have the exheader you're usual to see ( http://www.motobit.com/util/base64-decoder-encoder.asp ).

 

[daxtsu]

Didn't know it was possible to get around the signed exheader requirement for .3ds files, though. Interesting.

The only weird thing right now is that Gateway doesn't seem to allow for access to the IR services needed for the C-Stick and ZL/ZR buttons, even if you have the correct Base64 string (can't test with 3.2.1 right now, as my LL is disassembled for a NAND mod, but I can confirm for 3.1, and 3.1.1 that it didn't work).

 

[MeisterFenster]

I cant get FBI to compile, I always get

no such file or directionary
#include 3ds.h

other projects are fine, it is just this and the ntr plugins. Any ideas?

Edit: I have set all the environment variables

 

[Asia81]

Can anyone give me the latest makerom for both 32-64bits ?I It's 0.13 i think

 

[Rinnegatamante]

Is it possible to simulate POWER button pressure? I'm trying with this piece of code but i get an Home Menu return instead of Shutdown Menu launch:

static int lua_exit(lua_State *L)
{
    int argc = lua_gettop(L);
    if (argc != 0) return luaL_error(L, "wrong number of arguments");
 
    aptOpenSession();
    APT_ReplySleepQuery(NULL, currentAppId, 0x0);
    aptCloseSession();
    aptSetStatusPower(1);
    aptSetStatus(APP_SUSPENDING);
    aptReturnToMenu();
   
    // This is used for lpp-3ds shutdown
    char string[20];
    strcpy(string,"lpp_exit_0456432");
    return luaL_error(L, string); // NOTE: This is a fake error
 
}

 

[KazoWAR]

How do you make cia for hombrew

 

[daxtsu]

You need to fiddle around with stripping the elf you get and then using makerom. Or just use the fork of SteveIce's homebrew template I made, which has everything needed already (minus the ctrcommon dependency): https://github.com/thedax/3DSHomebrewTemplate

You just type make it and spits out a CIA for your program. If you mean turning other peoples' homebrew into CIA, well, take a peek inside the template makefile, and you'll see what to pass to makerom.

 

[KazoWAR]

You need to fiddle around with stripping the elf you get and then using makerom. Or just use the fork of SteveIce's homebrew template I made, which has everything needed already (minus the ctrcommon dependency): https://github.com/thedax/3DSHomebrewTemplate

You just type make it and spits out a CIA for your program. If you mean turning other peoples' homebrew into CIA, well, take a peek inside the template makefile, and you'll see what to pass to makerom.

i tried using the 3DSHombrewTemplate, it builds find. the 3dsx runs in citra perfectly, but the cia just boots to black screen. if it makes a difference, i am using sf2dlib and 4.X CFW.

 

[daxtsu]

Does your CIA work without sf2dlib? It's possible that sf2dlib simply might not work on 4.x CFW.

 

[KazoWAR]

Does your CIA work without sf2dlib? It's possible that sf2dlib simply might not work on 4.x CFW.

I am using sf2dlib to draw images to the screen, i guess i can try a hello world and see if it works.

 

[filfat]

Just throwing this here too: https://github.com/filfat/3DS_UI
Feel free to use it and/or improve it; or y'know don't

If I just had time right now to complete it, instead I have to use JS and PHP urg

 

[TheCruel]

How do you support app suspension using ctrulib? It seems to always screw up memory allocation (or something similar) and all textures and such disappear. Do you have to reinitialize some things (e.g. GPU)?