Implement ledmap-in-eeprom feature

common.mk

@@ -79,7 +79,12 @@ endif
 ifdef LEDMAP_ENABLE
     SRC += $(COMMON_DIR)/ledmap.c
     OPT_DEFS += -DLEDMAP_ENABLE
+ifdef LEDMAP_IN_EEPROM_ENABLE
+    SRC += $(COMMON_DIR)/ledmap_in_eeprom.c
+    OPT_DEFS += -DLEDMAP_IN_EEPROM_ENABLE
 endif
+endif
+
 
 ifdef KEYMAP_SECTION_ENABLE
     OPT_DEFS += -DKEYMAP_SECTION_ENABLE

common/ledmap.c

@@ -1,4 +1,5 @@
 #include "ledmap.h"
+#include "ledmap_in_eeprom.h"
 #include "led.h"
 #include "softpwm_led.h"
 #include "action_layer.h"

common/ledmap.h

@@ -36,7 +36,8 @@ typedef enum {
     LEDMAP_SCROLL_LOCK,
     LEDMAP_COMPOSE,
     LEDMAP_KANA,
-    LEDMAP_BACKLIGHT
+    LEDMAP_BACKLIGHT = 0x80,
+    LEDMAP_UNCONFIGURED = 0xFF
 } ledmap_code_t;
 
 #define LEDMAP_LAYER(x) (x)

common/ledmap_in_eeprom.c

@@ -0,0 +1,28 @@
+#include <avr/pgmspace.h>
+#include <avr/eeprom.h>
+#include "ledmap.h"
+#include "ledmap_in_eeprom.h"
+
+#ifdef LEDMAP_IN_EEPROM_ENABLE
+
+#undef ledmap_get_code
+
+static uint8_t ledmap[LED_COUNT];
+
+void ledmap_in_eeprom_init(void) {
+    // read and check ledmap in eeprom
+    for (uint8_t i = 0; i < LED_COUNT; i++) {
+        ledmap[i] = eeprom_read_byte(EECONFIG_LEDMAP + i);
+        if (ledmap[i] == LEDMAP_UNCONFIGURED) {
+            ledmap[i] = lemap_get_code(i);
+            eeprom_write_byte(EECONFIG_LEDMAP + i, ledmap[i]);
+        }
+    }
+}
+
+uint8_t ledmap_in_eeprom_get_code(uint8_t i)
+{
+    return ledmap[i];
+}
+
+#endif

common/ledmap_in_eeprom.h

@@ -0,0 +1,20 @@
+#ifndef LEDMAP_IN_EEPROM_H
+#define LEDMAP_IN_EEPROM_H
+
+#ifndef EECONFIG_LEDMAP_IN_EEPROM
+#define EECONFIG_LEDMAP_IN_EEPROM 7
+#endif
+
+#define EECONFIG_LEDMAP (uint8_t*)EECONFIG_LEDMAP_IN_EEPROM
+#define LEDMAP_SIZE (sizeof(uint8_t) * LED_COUNT)
+
+#ifdef LEDMAP_IN_EEPROM_ENABLE
+#define ledmap_get_code ledmap_in_eeprom_get_code
+void ledmap_in_eeprom_init(void);
+uint8_t ledmap_in_eeprom_get_code(uint8_t index);
+#else
+#define ledmap_in_eeprom_init()
+#define ledmap_in_eeprom_get_code()
+#endif
+
+#endif