#include <pspuser.h>
#include <pspdebug.h>
#include <pspdisplay.h>
#include <pspsdk.h>
#include <pspctrl.h>
#include <psphprm.h>
#include <string.h>

PSP_MODULE_INFO("Remote Sample", 0, 1, 1);

PSP_MAIN_THREAD_ATTR(THREAD_ATTR_USER);

#define printf pspDebugScreenPrintf

int main(void) {
u32 key_new, key_old = 0; int err = 0;
pspDebugScreenInit();
sceCtrlSetSamplingCycle(0);
sceCtrlSetSamplingMode(PSP_CTRL_MODE_ANALOG);

while(1) {
SceCtrlData pad; key_new = 0; err = 0;
sceCtrlReadBufferPositive(&pad, 1);
if (pad.Buttons & PSP_CTRL_CROSS) {
break;
}

if (sceHprmIsRemoteExist()) {
err = sceHprmPeekCurrentKey(&key_new);
if ((key_new > 0) && (key_new != key_old)) {

if (key_new == PSP_HPRM_PLAYPAUSE) printf("Play-Pause button pressed\n");
if (key_new == PSP_HPRM_FORWARD) printf("Forward button pressed\n");
if (key_new == PSP_HPRM_BACK) printf("Back button pressed\n");
if (key_new == PSP_HPRM_HOLD) printf("Hold button pressed\n");
if (key_new == PSP_HPRM_VOL_UP) printf("Volume Up button pressed\n");
if (key_new == PSP_HPRM_VOL_DOWN) printf("Volume Down button pressed\n");

}
}
key_old = key_new;
sceDisplayWaitVblankStart();
}
sceKernelExitGame();
return 0;
}

TARGET = remote
OBJS = main.o

USE_PSPSDK_LIBC = 1

INCDIR =
CFLAGS = -O2 -G0 -Wall
CXXFLAGS = $(CFLAGS) -fno-exceptions -fno-rtti
ASFLAGS = $(CFLAGS)

LIBS = -lpsphprm
LIBDIR =
LDFLAGS =

EXTRA_TARGETS = EBOOT.PBP
PSP_EBOOT_TITLE = Remote Control Sample

PSPSDK=$(shell psp-config --pspsdk-path)
include $(PSPSDK)/lib/build.mak

main.c
//HPRM-Buttons-Tester for PSP 3000 by Knopper
#include <pspctrl.h>
#include <pspdebug.h>
#include <pspsdk.h>
#include <pspsysmem.h>
#include <pspuser.h>
#include <string.h>

#define printf pspDebugScreenPrintf

PSP_MODULE_INFO("HPRM-Buttons_Tester", 0, 1, 0); //Usermode
PSP_MAIN_THREAD_ATTR(THREAD_ATTR_USER);
PSP_HEAP_SIZE_KB(2500);

//Headphones buttons
int PLAYPAUSE = 769;
int FORWARD = 772;
int BACK = 776;
int VOL_UP = 784;
int VOL_DOWN = 800;
int HOLD = 896;

//Functions-Import von prx
int getHPRM(void);

int main(void){

pspDebugScreenInit();
sceCtrlSetSamplingCycle(0);
sceCtrlSetSamplingMode(PSP_CTRL_MODE_ANALOG);

SceUID modid;
pspDebugScreenInit();

pspDebugScreenPrintf("HPRM-Buttons-Tester. Press X for quit!\n\n");

modid = pspSdkLoadStartModule("myLib.prx", PSP_MEMORY_PARTITION_KERNEL);
if (modid < 0){
pspDebugScreenPrintf("Error 0x%08X loading/starting myLib.prx.\n", modid);
sceKernelDelayThread(5*1000*1000);
return -1;
}

pspDebugScreenPrintf("Press Headphones-Buttons...\n\n");

SceCtrlData pad;

while(1){

int key;

sceCtrlReadBufferPositive(&pad, 1);
if (pad.Buttons & PSP_CTRL_CROSS){
break;
}

key = getHPRM();

if (key > 0) {
if (key == PLAYPAUSE) {printf("PLAY/PAUSE button pressed\n");}
if (key == FORWARD) {printf("FORWARD button pressed\n");}
if (key == BACK) {printf("BACK button pressed\n");}
if (key == VOL_UP){printf("VOLUME_UP button pressed\n");}
if (key == VOL_DOWN){printf("VOLUME DOWN button pressed\n");}
if (key == HOLD) {printf("HOLD button pressed\n");}
}
}

sceKernelExitGame();
return 0;
}

myLib.S
.set noreorder

#include "pspstub.s"

STUB_START "myLib",0x40090000,0x00010005
STUB_FUNC 0x5AC51B78,getHPRM
STUB_END

Makefile
TARGET = HPRMButtonsTester
OBJS = main.o myLib.o

INCDIR =
CFLAGS = -O2 -G0 -Wall
CXXFLAGS = $(CFLAGS) -fno-exceptions -fno-rtti
ASFLAGS = $(CFLAGS)

BUILD_PRX = 1

LIBDIR =
LDFLAGS =
LIBS =

EXTRA_TARGETS = EBOOT.PBP
PSP_EBOOT_TITLE = HPRM_Buttons_Tester

PSPSDK=$(shell psp-config --pspsdk-path)
include $(PSPSDK)/lib/build.mak

main.c
#include <pspdebug.h>
#include <psphprm.h>
#include <pspkernel.h>
#include <pspsdk.h>

PSP_MODULE_INFO("myLib", 0x1006, 1, 0); //Kernelmode
PSP_MAIN_THREAD_ATTR(0);

int getHPRM(){
int HPRMsignal = 0;
u32 k1;
k1 = pspSdkSetK1(0);
sceHprmPeekCurrentKey(&HPRMsignal);
pspSdkSetK1(k1);
return HPRMsignal;
}

int module_start(SceSize args, void *argp)
{
return 0;
}

int module_stop()
{
return 0;
}


mylib.exp
PSP_BEGIN_EXPORTS
PSP_EXPORT_START(syslib, 0, 0x8000)
PSP_EXPORT_FUNC_HASH(module_start)
PSP_EXPORT_VAR_HASH(module_info)
PSP_EXPORT_END
#Export our function
PSP_EXPORT_START(myLib, 0, 0x4001)
PSP_EXPORT_FUNC(getHPRM)
PSP_EXPORT_END
PSP_END_EXPORTS


Makefile
TARGET = mylib
OBJS = main.o
INCDIR =
CFLAGS = -O2 -G0 -Wall
CXXFLAGS = $(CFLAGS) -fno-exceptions -fno-rtti
ASFLAGS = $(CFLAGS)
PSP_FW_VERSION = 500
BUILD_PRX = 1
PRX_EXPORTS = mylib.exp
USE_KERNEL_LIBC=1
USE_KERNEL_LIBS=1
LIBDIR =
LDFLAGS = -mno-crt0 -nostartfiles
LIBS = -lpsphprm_driver
PSPSDK=$(shell psp-config --pspsdk-path)
include $(PSPSDK)/lib/build.mak