Some fix for reading keymap from eeprom

keyboard/tentapad/keymap_common.c

@@ -22,21 +22,47 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "keymap_common.h"
 
 static uint8_t keymaps_cache[KEYMAPS_COUNT][MATRIX_ROWS][MATRIX_COLS];
+static uint8_t last_layer_number = 1;
 
 void keymaps_cache_init(void)
 {
     for (uint8_t layer = 0; layer < KEYMAPS_COUNT; layer++) {
+        uint8_t non_empty_key = 0;
         for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
             for (uint8_t col = 0; col < MATRIX_COLS; col++) {
+                if (col == 3) {
+                    keymaps_cache[layer][row][col] = KC_FN28;
+                }
+                else if (col == 4) {
+                    keymaps_cache[layer][row][col] = KC_FN29;
+                }
+                else {
+                    if (layer < CONFIG_LAYER) {
 #ifndef KEYMAP_IN_EEPROM_ENABLE
                         keymaps_cache[layer][row][col] = pgm_read_byte(&keymaps[layer][row][col]);
 #else
                         keymaps_cache[layer][row][col] = eeconfig_read_keymap_key(layer, row, col);
 #endif
+                        if (keymaps_cache[layer][row][col] > KC_TRANSPARENT) {
+                            non_empty_key++;
+                        }
+                    }
+                    else {
+                        keymaps_cache[layer][row][col] = pgm_read_byte(&keymaps[layer][row][col]);
                     }
                 }
             }
         }
+        if (non_empty_key) {
+            last_layer_number = layer;
+        }
+    }
+}
+
+uint8_t last_layer(void)
+{
+    return last_layer_number;
+}
 
 /* translates key to keycode */
 uint8_t keymap_key_to_keycode(uint8_t layer, key_t key)
@@ -47,13 +73,23 @@ uint8_t keymap_key_to_keycode(uint8_t layer, key_t key)
 /* translates Fn keycode to action */
 action_t keymap_fn_to_action(uint8_t keycode)
 {
-    return (action_t) {
 #ifndef KEYMAP_IN_EEPROM_ENABLE
+    return (action_t) {
         .code = pgm_read_word(&fn_actions[FN_INDEX(keycode)])
-#else
-        .code = eeconfig_read_keymap_fn_action(FN_INDEX(keycode))
-#endif
     };
+#else
+    uint8_t index = FN_INDEX(keycode);
+    if (index < RESERVED_FN) {
+        return (action_t) {
+            .code = eeconfig_read_keymap_fn_action(index)
+        };
+    }
+    else {
+        return (action_t) {
+            .code = pgm_read_word(&fn_actions[index])
+        };
+    }
+#endif
 }
 
 #ifdef KEYMAP_IN_EEPROM_ENABLE

keyboard/tentapad/keymap_common.h

@@ -23,14 +23,18 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 extern const uint8_t keymaps[][MATRIX_ROWS][MATRIX_COLS];
 extern const uint16_t fn_actions[];
 
+#define CONFIG_LAYER (KEYMAPS_COUNT - 1)
+#define RESERVED_FN (FN_ACTIONS_COUNT - 4)
+
 void keymaps_cache_init(void);
+uint8_t last_layer(void);
 
 /* TentaPad keymap definition macro
  */
 #define KEYMAP( \
-    K1, K2, TT, TP, FN \
+    K1, K2, TT \
 ) { \
-    { KC_##K1, KC_##K2, KC_##TT, KC_##TP, KC_##FN } \
+    { KC_##K1, KC_##K2, KC_##TT } \
 }
 
 #endif

keyboard/tentapad/keymap_default.c

@@ -23,28 +23,25 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "keymap_common.h"
 
 enum function_id {
-    CONFIG_MODE = 0,
+    TOUCH_PROXIMITY = 0,
+    CONFIG_MODE,
     SWITCH_LAYOUT,
     SWITCH_BACKLIGHT
 };
 
-enum {
-    CONFIG_LAYER = 8,
-};
-
 // Default
 #ifdef KEYMAP_SECTION_ENABLE
 const uint8_t keymaps[KEYMAPS_COUNT][MATRIX_ROWS][MATRIX_COLS] __attribute__ ((section (".keymap.keymaps"))) = {
 #else
 const uint8_t keymaps[][MATRIX_ROWS][MATRIX_COLS] PROGMEM = {
 #endif
-    [0]  = KEYMAP( Z,   X,   ESC, NO,  FN0 ),
+    [0] = KEYMAP( Z,   X,   ESC ),
-    [1]  = KEYMAP( BTN1,BTN2,ESC, NO,  FN0 ),
+    [1] = KEYMAP( BTN1,BTN2,ESC ),
-    [2]  = KEYMAP( LEFT,RGHT,ESC, NO,  FN0 ),
+    [2] = KEYMAP( LEFT,RGHT,ESC ),
-    [3]  = KEYMAP( UP,  DOWN,ESC, NO,  FN0 ),
+    [3] = KEYMAP( UP,  DOWN,ESC ),
-    [4]  = KEYMAP( PGUP,PGDN,ESC, NO,  FN0 ),
+    [4] = KEYMAP( PGUP,PGDN,ESC ),
-    [5]  = KEYMAP( SPC, ESC, ESC, NO,  FN0 ),
+    [5] = KEYMAP( SPC, ESC, ESC ),
-    [CONFIG_LAYER] = KEYMAP( FN1, FN2, NO,  NO,  FN0 ),
+    [CONFIG_LAYER] = KEYMAP( FN30, FN31, NO )
 };
 
 /*
@@ -55,9 +52,10 @@ const uint16_t fn_actions[FN_ACTIONS_COUNT] __attribute__ ((section (".keymap.fn
 #else
 const uint16_t fn_actions[] PROGMEM = {
 #endif
-    [0] = ACTION_FUNCTION(CONFIG_MODE),
+    [28] = ACTION_FUNCTION(TOUCH_PROXIMITY),
-    [1] = ACTION_FUNCTION(SWITCH_LAYOUT),
+    [29] = ACTION_FUNCTION(CONFIG_MODE),
-    [2] = ACTION_FUNCTION(SWITCH_BACKLIGHT)
+    [30] = ACTION_FUNCTION(SWITCH_LAYOUT),
+    [31] = ACTION_FUNCTION(SWITCH_BACKLIGHT)
 };
 
 #ifdef KEYMAP_IN_EEPROM_ENABLE
@@ -95,7 +93,7 @@ void action_function(keyrecord_t *record, uint8_t id, uint8_t opt)
                 if (config_mode) {
                     default_layer_set(1UL<<layer);
                     eeconfig_write_default_layer(1UL<<layer);
-                    layer = (layer + 1) % 6;
+                    layer = (layer + 1) % (last_layer() + 1);
                 }
             }
             break;