Implement emulated EEPROM

keyboards/massdrop/alt/keymaps/drugo/config.h

@@ -8,5 +8,5 @@
 
 #define SERIAL_NUM          "FRT001"
 
-#define UNICODE_SELECTED_MODES UC_LNX, UC_WINC
+#define UNICODE_SELECTED_MODES UC_LNX, UC_WINC, UC_MAC
 #define UCIS_MAX_CODE_POINTS 32

keyboards/massdrop/alt/keymaps/drugo/config_led.h

@@ -18,6 +18,12 @@
 #define DISABLE_RGB_MATRIX_RAINBOW_PINWHEELS
 #define DISABLE_RGB_MATRIX_DUAL_BEACON
 #define DISABLE_RGB_MATRIX_BREATHING
+#define DISABLE_RGB_MATRIX_HUE_BREATHING
+#define DISABLE_RGB_MATRIX_HUE_PENDULUM
+#define DISABLE_RGB_MATRIX_HUE_WAVE
+
+#define RGB_MATRIX_FRAMEBUFFER_EFFECTS
+#define RGB_MATRIX_TYPING_HEATMAP_DECREASE_DELAY 50
 
 // Set default RGB effect
 #define RGB_MATRIX_STARTUP_MODE RGB_MATRIX_ALPHAS_MODS

keyboards/massdrop/alt/keymaps/drugo/keymap.c

@@ -25,6 +25,22 @@ enum {
     TD_LOCK,           //ESC/GUI+L
 };
 
+enum alt_rgb_mode {
+    RGB_MODE_ALL,
+    RGB_MODE_KEYLIGHT,
+    RGB_MODE_UNDERGLOW,
+    RGB_MODE_NONE,
+};
+
+typedef union {
+    uint32_t raw;
+    struct {
+        uint8_t rgb_mode :8;
+    };
+} alt_config_t;
+
+alt_config_t alt_config;
+
 const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
     // DEFAULT
     [0] = LAYOUT_65_ansi_blocker(
@@ -38,8 +54,8 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
     [1] = LAYOUT_65_ansi_blocker(
         KC_GRV,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  _______, KC_MUTE, \
         _______, RGB_SPD, RGB_VAI, RGB_SPI, RGB_HUI, RGB_SAI, _______,U_T_AUTO,U_T_AGCR, _______, KC_PSCR, KC_SLCK, KC_PAUS, _______, KC_HOME, \
-        _______,RGB_RMOD, RGB_VAD, RGB_MOD, RGB_HUD, RGB_SAD, _______, _______, _______, _______, _______, _______,          _______, KC_BRIU, \
-        _______, RGB_TOG, RGB_FRZ, _______, _______, MD_BOOT, NK_TOGG, DBG_TOG, DBG_KBD,DBG_MTRX, _______, _______,          KC_VOLU, KC_BRID, \
+        UC_M_MA,RGB_RMOD, RGB_VAD, RGB_MOD, RGB_HUD, RGB_SAD, _______, _______, _______, _______, _______, _______,          _______, KC_BRIU, \
+        _______, RGB_TOG, RGB_FRZ, _______, EEP_RST, MD_BOOT, NK_TOGG, DBG_TOG, DBG_KBD,DBG_MTRX, _______, _______,          KC_VOLU, KC_BRID, \
         UNI_ON , UC_M_WC, UC_M_LN,                            KC_MPLY,                            MO(2)  , _______, KC_MPRV, KC_VOLD, KC_MNXT  \
     ),
     // MACRO
@@ -110,6 +126,15 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
                 }
             }
             return false;
+        case EEP_RST:
+            if (record->event.pressed) {
+                key_timer = timer_read32();
+            } else {
+                if (timer_elapsed32(key_timer) >= 500) {
+                    eeconfig_init();
+                }
+            }
+            return false;
         #ifdef UCIS_ENABLE
         case UNI_ON:
             if (record->event.pressed) {
@@ -196,24 +221,29 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
                 case LED_FLAG_ALL: {
                     rgb_matrix_set_flags(LED_FLAG_KEYLIGHT | LED_FLAG_MODIFIER | LED_FLAG_INDICATOR);
                     rgb_matrix_set_color_all(0, 0, 0);
+                    alt_config.rgb_mode = RGB_MODE_KEYLIGHT;
                   }
                   break;
                 case (LED_FLAG_KEYLIGHT | LED_FLAG_MODIFIER | LED_FLAG_INDICATOR): {
                     rgb_matrix_set_flags(LED_FLAG_UNDERGLOW);
                     rgb_matrix_set_color_all(0, 0, 0);
+                    alt_config.rgb_mode = RGB_MODE_UNDERGLOW;
                   }
                   break;
                 case LED_FLAG_UNDERGLOW: {
                     rgb_matrix_set_flags(LED_FLAG_NONE);
                     rgb_matrix_disable_noeeprom();
+                    alt_config.rgb_mode = RGB_MODE_NONE;
                   }
                   break;
                 default: {
                     rgb_matrix_set_flags(LED_FLAG_ALL);
                     rgb_matrix_enable_noeeprom();
+                    alt_config.rgb_mode = RGB_MODE_ALL;
                   }
                   break;
               }
+              eeconfig_update_user(alt_config.raw);
             }
             return false;
         case RGB_FRZ:
@@ -235,6 +265,28 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
     }
 }
 
+void keyboard_post_init_kb(void) {
+    alt_config.raw = eeconfig_read_user();
+    switch (alt_config.rgb_mode) {
+        case RGB_MODE_ALL:
+            rgb_matrix_set_flags(LED_FLAG_ALL);
+            rgb_matrix_enable_noeeprom();
+            break;
+        case RGB_MODE_KEYLIGHT:
+            rgb_matrix_set_flags(LED_FLAG_KEYLIGHT);
+            rgb_matrix_set_color_all(0, 0, 0);
+            break;
+        case RGB_MODE_UNDERGLOW:
+            rgb_matrix_set_flags(LED_FLAG_UNDERGLOW);
+            rgb_matrix_set_color_all(0, 0, 0);
+            break;
+        case RGB_MODE_NONE:
+            rgb_matrix_set_flags(LED_FLAG_NONE);
+            rgb_matrix_disable_noeeprom();
+            break;
+    }
+}
+
 #ifdef TAP_DANCE_ENABLE
 void lock_esc(qk_tap_dance_state_t *state, void *user_data){
     if (state->count == 1) {

tmk_core/common/arm_atsam/eeprom.c

@@ -13,24 +13,51 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-
+#include "samd51j18a.h"
 #include "eeprom.h"
+#include "core_cm4.h"
+#include "component/nvmctrl.h"
 
 #ifndef EEPROM_SIZE
 #    include "eeconfig.h"
 #    define EEPROM_SIZE (((EECONFIG_SIZE + 3) / 4) * 4)  // based off eeconfig's current usage, aligned to 4-byte sizes, to deal with LTO
 #endif
 
 __attribute__((aligned(4))) static uint8_t buffer[EEPROM_SIZE];
+volatile uint8_t *SmartEEPROM8 = (uint8_t *) SEEPROM_ADDR;
 
 uint8_t eeprom_read_byte(const uint8_t *addr) {
     uintptr_t offset = (uintptr_t)addr;
-    return buffer[offset];
+    if (offset >= EEPROM_SIZE)
+        return 0x0;
+
+    if (NVMCTRL->SEESTAT.bit.PSZ == 0 || NVMCTRL->SEESTAT.bit.SBLK == 0)
+        return buffer[offset];
+
+    int timeout = 10000;
+    while (NVMCTRL->SEESTAT.bit.BUSY && timeout-- > 0)
+        ;
+    if (!NVMCTRL->SEESTAT.bit.BUSY)
+        return SmartEEPROM8[offset];
+
+    return 0;
 }
 
 void eeprom_write_byte(uint8_t *addr, uint8_t value) {
     uintptr_t offset = (uintptr_t)addr;
-    buffer[offset]   = value;
+    if (offset >= EEPROM_SIZE)
+        return;
+
+    if (NVMCTRL->SEESTAT.bit.PSZ == 0 || NVMCTRL->SEESTAT.bit.SBLK == 0) {
+        buffer[offset] = value;
+        return;
+    }
+
+    int timeout = 10000;
+    while (NVMCTRL->SEESTAT.bit.BUSY && timeout-- > 0)
+        ;
+    if (!NVMCTRL->SEESTAT.bit.BUSY)
+        SmartEEPROM8[offset] = value;
 }
 
 uint16_t eeprom_read_word(const uint16_t *addr) {