Remade the chainloader to only try to load the right payload for the pressed button, got rid of the default payload (start now boots "start_NAME.bin"), sel_NAME is now select_NAME as there is no more SFN limitations anymore

loader/source/buttons.h

@@ -1,14 +0,0 @@
-#pragma once
-
-#include "types.h"
-
-#define HID_PAD       (*(vu32 *)0x10146000 ^ 0xFFF)
-#define BUTTON_RIGHT  (1 << 4)
-#define BUTTON_LEFT   (1 << 5)
-#define BUTTON_UP     (1 << 6)
-#define BUTTON_DOWN   (1 << 7)
-#define BUTTON_A      1
-#define BUTTON_X      (1 << 10)
-#define BUTTON_Y      (1 << 11)
-#define BUTTON_R1     (1 << 8)
-#define BUTTON_SELECT (1 << 2)

loader/source/fatfs/ffconf.h

@@ -15,7 +15,7 @@
 /  and optional writing functions as well. */
 
 
-#define _FS_MINIMIZE	1
+#define _FS_MINIMIZE	3
 /* This option defines minimization level to remove some basic API functions.
 /
 /   0: All basic functions are enabled.
@@ -34,7 +34,7 @@
 /  2: Enable with LF-CRLF conversion. */
 
 
-#define _USE_FIND		1
+#define _USE_FIND		0
 /* This option switches filtered directory read functions, f_findfirst() and
 /  f_findnext(). (0:Disable, 1:Enable 2:Enable with matching altname[] too) */
 

loader/source/fatfs/sdmmc/common.h

@@ -1,4 +1,15 @@
 #pragma once
 
 #include <stdbool.h>
-#include "../../types.h"
+#include <stdint.h>
+#include <stdlib.h>
+
+//Common data types
+typedef uint8_t u8;
+typedef uint16_t u16;
+typedef uint32_t u32;
+typedef uint64_t u64;
+typedef volatile u8 vu8;
+typedef volatile u16 vu16;
+typedef volatile u32 vu32;
+typedef volatile u64 vu64;

loader/source/main.c

@@ -1,39 +1,6 @@
-#include "types.h"
-#include "buttons.h"
 #include "fatfs/ff.h"
 
 #define PAYLOAD_ADDRESS	0x23F00000
-#define LOAD_PAYLOAD(a) loadPayload(a "_*.bin")
-
-static u32 loadPayload(const char *pattern)
-{
-    char path[29] = "/luma/payloads";
-
-    DIR dir;
-    FILINFO info;
-
-    FRESULT result = f_findfirst(&dir, &info, path, pattern);
-
-    f_closedir(&dir);
-
-    if(result != FR_OK || !info.fname[0])
-        return 0;
-
-    path[14] = '/';
-    u32 i;
-    for(i = 0; info.fname[i]; i++)
-        path[15 + i] = info.fname[i];
-    path[15 + i] = '\0';
-
-    FIL payload;
-    unsigned int read;
-
-    f_open(&payload, path, FA_READ);
-    f_read(&payload, (void *)PAYLOAD_ADDRESS, f_size(&payload), &read);
-    f_close(&payload);
-
-    return 1;
-}
 
 void main(void)
 {
@@ -41,18 +8,12 @@ void main(void)
 
     f_mount(&fs, "0:", 1);
 
-    //Get pressed buttons
+    FIL payload;
-    u32 pressed = HID_PAD;
+    unsigned int read;
 
-    if(((pressed & BUTTON_RIGHT) && LOAD_PAYLOAD("right")) ||
+    f_open(&payload, (char *)0x24F02000, FA_READ);
-       ((pressed & BUTTON_LEFT) && LOAD_PAYLOAD("left")) ||
+    f_read(&payload, (void *)PAYLOAD_ADDRESS, f_size(&payload), &read);
-       ((pressed & BUTTON_UP) && LOAD_PAYLOAD("up")) ||
+    f_close(&payload);
-       ((pressed & BUTTON_DOWN) && LOAD_PAYLOAD("down")) ||
+
-       ((pressed & BUTTON_X) && LOAD_PAYLOAD("x")) ||
+    ((void (*)())PAYLOAD_ADDRESS)();
-       ((pressed & BUTTON_Y) && LOAD_PAYLOAD("y")) ||
-       ((pressed & BUTTON_R1) && LOAD_PAYLOAD("r")) ||
-       ((pressed & BUTTON_A) && LOAD_PAYLOAD("a")) ||
-       ((pressed & BUTTON_SELECT) && LOAD_PAYLOAD("sel")) ||
-       LOAD_PAYLOAD("def"))
-        ((void (*)())PAYLOAD_ADDRESS)();
 }

loader/source/types.h

@@ -1,14 +0,0 @@
-#pragma once
-
-#include <stdint.h>
-#include <stdlib.h>
-
-//Common data types
-typedef uint8_t u8;
-typedef uint16_t u16;
-typedef uint32_t u32;
-typedef uint64_t u64;
-typedef volatile u8 vu8;
-typedef volatile u16 vu16;
-typedef volatile u32 vu32;
-typedef volatile u64 vu64;

source/firm.c

@@ -129,7 +129,7 @@ void main(void)
                the Safe Mode combo is not pressed, chainload an external payload */
             if(((pressed & SINGLE_PAYLOAD_BUTTONS) || ((pressed & BUTTON_L1) && (pressed & L_PAYLOAD_BUTTONS)))
                && pressed != SAFE_MODE)
-                loadPayload();
+                loadPayload(pressed);
 
             //If no configuration file exists or SELECT is held, load configuration menu
             if(needConfig == 2 || (pressed & BUTTON_SELECT))

source/fs.c

@@ -4,8 +4,11 @@
 
 #include "fs.h"
 #include "memory.h"
+#include "buttons.h"
 #include "fatfs/ff.h"
 
+#define PATTERN(a) a "_*.bin"
+
 static FATFS sdFs,
              nandFs;
 
@@ -52,16 +55,39 @@ u32 fileWrite(const void *buffer, const char *path, u32 size)
     return result;
 }
 
-u32 defPayloadExists(void)
+u32 payloadExists(u32 pressed)
 {
+    const char *pattern;
+
+    if(pressed & BUTTON_RIGHT) pattern = PATTERN("right");
+    else if(pressed & BUTTON_LEFT) pattern = PATTERN("left");
+    else if(pressed & BUTTON_UP) pattern = PATTERN("up");
+    else if(pressed & BUTTON_DOWN) pattern = PATTERN("down");
+    else if(pressed & BUTTON_X) pattern = PATTERN("x");
+    else if(pressed & BUTTON_Y) pattern = PATTERN("y");
+    else if(pressed & BUTTON_R1) pattern = PATTERN("r");
+    else if(pressed & BUTTON_A) pattern = PATTERN("a");
+    else if(pressed & BUTTON_START) pattern = PATTERN("start");
+    else pattern = PATTERN("select");
+
     DIR dir;
     FILINFO info;
+    char path[] = "/luma/payloads";
 
-    FRESULT result = f_findfirst(&dir, &info, "/luma/payloads", "def_*.bin");
+    FRESULT result = f_findfirst(&dir, &info, path, pattern);
 
     f_closedir(&dir);
 
-    return (result == FR_OK && info.fname[0]);
+    if(result == FR_OK && info.fname[0])
+    {
+        path[sizeof(path) - 1] = '/';
+        memcpy((void *)0x24F02000, path, sizeof(path));
+        memcpy((void *)(0x24F02000 + sizeof(path)), info.altname, 13);
+
+        return 1;
+    }
+
+    return 0;
 }
 
 void firmRead(void *dest, const char *firmFolder)

source/fs.h

@@ -9,5 +9,5 @@
 u32 mountFs(void);
 u32 fileRead(void *dest, const char *path, u32 size);
 u32 fileWrite(const void *buffer, const char *path, u32 size);
-u32 defPayloadExists(void);
+u32 payloadExists(u32 pressed);
 void firmRead(void *dest, const char *firmFolder);

source/loader.c

@@ -10,9 +10,9 @@
 
 #define PAYLOAD_ADDRESS	0x24F00000
 
-void loadPayload(void)
+void loadPayload(u32 pressed)
 {
-    if(defPayloadExists())
+    if(payloadExists(pressed))
     {
         initScreens();
         memcpy((void *)PAYLOAD_ADDRESS, loader, loader_size);

source/loader.h

@@ -6,4 +6,4 @@
 
 #include "types.h"
 
-void loadPayload(void);
+void loadPayload(u32 pressed);