Initial commit for firmware

Sorted directories
User configurable color scheme

Author: AtomicRPM

firmware/file_types.h

@@ -237,23 +237,54 @@ typedef struct
     u16 element;        // Used if file is a T64 or D64
 } CFG_IMG_HEADER;
 
+
+// echto
+typedef enum {
+    UI_COL_BLACK = 0,
+    UI_COL_WHITE,
+    UI_COL_RED,
+    UI_COL_CYAN,
+    UI_COL_PURPLE,
+    UI_COL_GREEN,
+    UI_COL_BLUE,
+    UI_COL_YELLOW,
+    UI_COL_ORANGE,
+    UI_COL_BROWN,
+    UI_COL_LIGHTRED,
+    UI_COL_GRAY1,       /* dark gray */
+    UI_COL_GRAY2,       /* medium gray (your SEARCHC uses COLOR_GRAY2) */
+    UI_COL_LIGHTGREEN,
+    UI_COL_LIGHTBLUE,
+    UI_COL_GRAY3,       /* light gray */
+    UI_COL_MAX          /* = 16 */
+} UI_COLOR_ID;
+
+
 typedef struct
 {
-    u8 signature[5];    // CFG_SIGNATURE
-    s8 phi2_offset;
-    u8 flags;           // CFG_FLAGS
+    u8  signature[5];   // CFG_SIGNATURE
+    s8  phi2_offset;
+    u8  flags;          // CFG_FLAGS
     u32 reserved;       // Should be 0
-    u8 boot_type;       // CFG_BOOT_TYPE
+    u8  boot_type;      // CFG_BOOT_TYPE
 
-    union
-    {
+    union {
         CFG_CRT_HEADER crt; // boot_type is CFG_CRT
         CFG_IMG_HEADER img; // boot_type is CFG_PRG or CFG_DISK
     };
 
     char path[750];
     char file[256];
+
+    /* --- NEW: UI color IDs (persisted) --- */
+    u8 ui_color1_id;    // header/frame
+    u8 ui_color2_id;    // normal text
+    u8 ui_color3_id;    // alt text
+    u8 ui_color4_id;	// background
+    u8 ui_color5_id;    // border
 } CFG_FILE;
+
+
 #pragma pack(pop)
 
 #define CFG_SIGNATURE "KFF2\1"

firmware/loader.c

@@ -19,7 +19,7 @@
  */
 
 #define CFG_FILENAME "/.KFF2.cfg"
-
+#define UI_COLOR_TAIL_BYTES 5  /* bytes at the end of dir->name reserved for color IDs */
 #define CRT_C64_SIGNATURE  "C64 CARTRIDGE   "
 #define CRT_C128_SIGNATURE "C128 CARTRIDGE  "
 #define CRT_CHIP_SIGNATURE "CHIP"
@@ -29,6 +29,7 @@
 #define EAPI_OFFSET 0x3800
 #define EAPI_SIZE   0x300
 
+
 static u16 prg_load_file(FIL *file)
 {
     u16 len = file_read(file, dat_buf, sizeof(dat_buf));
@@ -412,24 +413,73 @@ static bool mount_sd_card(void)
     return dir_change("/");
 }
 
+
 static bool load_cfg(void)
 {
-    bool result = true;
+    bool ok = true;
     FIL file;
-    if (!file_open(&file, CFG_FILENAME, FA_READ) ||
-        file_read(&file, &cfg_file, sizeof(cfg_file)) != sizeof(cfg_file) ||
-        memcmp(CFG_SIGNATURE, cfg_file.signature, sizeof(cfg_file.signature)) != 0)
-    {
-        wrn("%s file not found or invalid", CFG_FILENAME);
+    FILINFO info;
+
+    /* Start clean + signature + DEFAULTS for new fields */
+    memset(&cfg_file, 0, sizeof(cfg_file));
+    memcpy(cfg_file.signature, CFG_SIGNATURE, sizeof(cfg_file.signature));
+
+    /* Defaults for first boot / older cfgs (IDs, not conio colors) */
+    cfg_file.ui_color1_id = UI_COL_WHITE;
+    cfg_file.ui_color2_id = UI_COL_WHITE;
+    cfg_file.ui_color3_id = UI_COL_PURPLE;
+	cfg_file.ui_color4_id = UI_COL_BLACK;
+	cfg_file.ui_color5_id = UI_COL_BLACK;
+
+    /* If no file, keep defaults */
+    if (!file_stat(CFG_FILENAME, &info) || !file_open(&file, CFG_FILENAME, FA_READ)) {
+        wrn("%s file not found", CFG_FILENAME);
+        return false;
+    }
+
+    /* Read at most what's present in the file (older cfgs are shorter) */
+    UINT want = (UINT)info.fsize;
+    if (want > sizeof(cfg_file)) want = (UINT)sizeof(cfg_file);
+
+    UINT got = file_read(&file, &cfg_file, want);
+    file_close(&file);
+    if (got != want) {
+        wrn("Failed to read %s", CFG_FILENAME);
+        return false;
+    }
+
+    /* Validate signature */
+    if (memcmp(CFG_SIGNATURE, cfg_file.signature, sizeof(cfg_file.signature)) != 0) {
+        wrn("%s invalid signature", CFG_FILENAME);
         memset(&cfg_file, 0, sizeof(cfg_file));
         memcpy(cfg_file.signature, CFG_SIGNATURE, sizeof(cfg_file.signature));
-        result = false;
+        cfg_file.ui_color1_id = UI_COL_WHITE;
+        cfg_file.ui_color2_id = UI_COL_WHITE;
+        cfg_file.ui_color3_id = UI_COL_PURPLE;
+		cfg_file.ui_color4_id = UI_COL_BLACK;
+		cfg_file.ui_color5_id = UI_COL_BLACK;
+        ok = false;
     }
 
-    file_close(&file);
-    return result;
+    /* Clamp invalid IDs (in case of very old/garbage values) */
+    if (cfg_file.ui_color1_id >= UI_COL_MAX) cfg_file.ui_color1_id = UI_COL_WHITE;
+    if (cfg_file.ui_color2_id >= UI_COL_MAX) cfg_file.ui_color2_id = UI_COL_WHITE;
+    if (cfg_file.ui_color3_id >= UI_COL_MAX) cfg_file.ui_color3_id = UI_COL_PURPLE;
+    if (cfg_file.ui_color4_id >= UI_COL_MAX) cfg_file.ui_color4_id = UI_COL_BLACK;
+    if (cfg_file.ui_color5_id >= UI_COL_MAX) cfg_file.ui_color5_id = UI_COL_BLACK;
+
+   /* --- Safety correction --- */
+    /* If both Color2 and Color3 equal Color4, restore to readable defaults */
+    if (cfg_file.ui_color2_id == cfg_file.ui_color4_id && cfg_file.ui_color3_id == cfg_file.ui_color4_id) {
+        cfg_file.ui_color2_id = UI_COL_WHITE;
+        cfg_file.ui_color3_id = UI_COL_PURPLE;
+
+    }
+
+    return ok;
 }
 
+
 static bool auto_boot(void)
 {
     bool result = false;