Get actual battery percentage thanks to Spaqin

Removed ir:u service because it isn't required in this program. Besides
I had to make room for mcu::HWC.

I also forgot to mention I got the ACTU functions from MrCheeze.
Many thanks to him.

resources/cia.rsf

@@ -170,6 +170,7 @@ AccessControlInfo:
    - gsp::Gpu
    - hid:USER
    - http:C
+   - mcu::HWC
    - mic:u
    - ndm:u
    - news:s
@@ -181,7 +182,6 @@ AccessControlInfo:
    - y2r:u
    - ldr:ro
    - ir:USER
-   - ir:u
    - csnd:SND
    - am:u
    - ns:s

source/actu.c

@@ -3,15 +3,18 @@
 
 static Handle actHandle;
 
-Result actInit(void) {
+Result actInit(void) 
+{
     return srvGetServiceHandle(&actHandle, "act:u");
 }
 
-Result actExit(void) {
+Result actExit(void) 
+{
     return svcCloseHandle(actHandle);
 }
 
-Result ACTU_Initialize(u32 sdkVersion, u32 unknown, Handle handle) {
+Result ACTU_Initialize(u32 sdkVersion, u32 unknown, Handle handle) 
+{
     Result ret = 0;
     u32 *cmdbuf = getThreadCommandBuffer();
 
@@ -28,7 +31,8 @@ Result ACTU_Initialize(u32 sdkVersion, u32 unknown, Handle handle) {
     return (Result)cmdbuf[1];
 }
 
-Result ACTU_GetAccountDataBlock(u32 unknown, u32 size, u32 blockId, void* output) {
+Result ACTU_GetAccountDataBlock(u32 unknown, u32 size, u32 blockId, void* output) 
+{
     Result ret = 0;
     u32 *cmdbuf = getThreadCommandBuffer();
 

source/main.c

@@ -4,6 +4,7 @@
 #include <malloc.h>
 
 #include "actu.h"
+#include "mcu.h"
 #include "screenshot.h"
 
 int vaPrint(char *format, ...)
@@ -176,6 +177,7 @@ int main(int argc, char *argv[])
     fsInit();
     sdmcInit();
     ptmuInit();
+	mcuInit();
 	amInit();
 	psInit();
 	aptInit();
@@ -187,7 +189,7 @@ int main(int argc, char *argv[])
     char *str_ver = malloc(255), *str_sysver = malloc(255);
     u32 os_ver = osGetKernelVersion(), firm_ver = osGetKernelVersion();
 
-    printf("\x1b[32m3DSident 0.4\x1b[0m\n\n");
+    printf("\x1b[32m3DSident 0.5\x1b[0m\n\n");
 
     snprintf(str_ver, 255, "\x1b[33m*\x1b[0m Kernel version: %lu.%lu-%lu\n\x1b[33m*\x1b[0m FIRM version is %lu.%lu-%lu\n",
              GET_VERSION_MAJOR(os_ver), GET_VERSION_MINOR(os_ver), GET_VERSION_REVISION(os_ver),

source/mcu.c

@@ -0,0 +1,21 @@
+#include "mcu.h"
+
+Result mcuInit()
+{
+    return srvGetServiceHandle(&mcuhwcHandle, "mcu::HWC");
+}
+
+Result mcuExit()
+{
+    return svcCloseHandle(mcuhwcHandle);
+}
+
+Result mcuGetBatteryLevel(u8* out)
+{
+    u32* ipc = getThreadCommandBuffer();
+    ipc[0] = 0x50000;
+    Result ret = svcSendSyncRequest(mcuhwcHandle);
+    if(ret < 0) return ret;
+	*out = ipc[2];
+    return ipc[1];
+}

source/mcu.h

@@ -0,0 +1,7 @@
+#include <3ds.h>
+
+Handle mcuhwcHandle;
+
+Result mcuInit();
+Result mcuExit();
+Result mcuGetBatteryLevel(u8* out);