From fb7fe32bf4604dc6e31235d0c01e1f149981bb95 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Ko=C5=82ucki?= <BluRaf@gmx.com>
Date: Tue, 26 May 2026 19:58:49 +0200
Subject: [PATCH] Add keypad support

---
 include/lv_ctr_indev.h |  2 ++
 source/lv_ctr_indev.c  | 74 ++++++++++++++++++++++++++++++++++++++++--
 2 files changed, 74 insertions(+), 2 deletions(-)

diff --git a/include/lv_ctr_indev.h b/include/lv_ctr_indev.h
index d997b3c..ef6ae59 100644
--- a/include/lv_ctr_indev.h
+++ b/include/lv_ctr_indev.h
@@ -34,6 +34,8 @@ extern "C" {
  * GLOBAL PROTOTYPES
  **********************/
 void lv_ctr_indev_init(void);
+lv_indev_t * lv_ctr_indev_get_touchpad(void);
+lv_indev_t * lv_ctr_indev_get_keypad(void);
 
 /**********************
  *      MACROS
diff --git a/source/lv_ctr_indev.c b/source/lv_ctr_indev.c
index 9f3791b..fef8d94 100644
--- a/source/lv_ctr_indev.c
+++ b/source/lv_ctr_indev.c
@@ -24,11 +24,13 @@
  **********************/
 
 static void touchpad_read(lv_indev_t * indev, lv_indev_data_t * data);
+static void keypad_read(lv_indev_t * indev, lv_indev_data_t * data);
 
 /**********************
  *  STATIC VARIABLES
  **********************/
 lv_indev_t * indev_touchpad;
+lv_indev_t * indev_keypad;
 
 /**********************
  *      MACROS
@@ -45,12 +47,27 @@ void lv_ctr_indev_init(void)
     lv_indev_set_type(indev_touchpad, LV_INDEV_TYPE_POINTER);
     lv_indev_set_read_cb(indev_touchpad, touchpad_read);
 
+    /*Register a keypad input device*/
+    indev_keypad = lv_indev_create();
+    lv_indev_set_type(indev_keypad, LV_INDEV_TYPE_KEYPAD);
+    lv_indev_set_read_cb(indev_keypad, keypad_read);
+    
     /*Later you should create group(s) with `lv_group_t * group = lv_group_create()`,
      *add objects to the group with `lv_group_add_obj(group, obj)`
      *and assign this input device to group to navigate in it:
      *`lv_indev_set_group(indev_keypad, group);`*/
 }
 
+lv_indev_t * lv_ctr_indev_get_touchpad(void)
+{
+    return indev_touchpad;
+}
+
+lv_indev_t * lv_ctr_indev_get_keypad(void)
+{
+    return indev_keypad;
+}
+
 /**********************
  *   STATIC FUNCTIONS
  **********************/
@@ -64,8 +81,6 @@ static void touchpad_read(lv_indev_t * indev_drv, lv_indev_data_t * data)
     static int32_t last_x = 0;
     static int32_t last_y = 0;
     touchPosition touch;
-    
-    hidScanInput();
 
     /*Save the pressed coordinates and the state*/
     if(hidKeysHeld() & KEY_TOUCH) {
@@ -83,6 +98,61 @@ static void touchpad_read(lv_indev_t * indev_drv, lv_indev_data_t * data)
     data->point.y = last_y;
 }
 
+/*------------------
+ * Keypad
+ * -----------------*/
+
+/* What do you mean you can't handle more than one button at the same time!? */
+static void keypad_read(lv_indev_t * indev_drv, lv_indev_data_t * data)
+{
+    static uint32_t last_key = 0;
+    bool key_pressed = false;
+
+    u32 kDown = hidKeysDown();
+    u32 kHeld = hidKeysHeld();
+    u32 kUp   = hidKeysUp();
+
+    if (kHeld & KEY_UP) {
+        last_key = LV_KEY_UP;
+        key_pressed = true;
+    }
+    else if (kHeld & KEY_DOWN) {
+        last_key = LV_KEY_DOWN;
+        key_pressed = true;
+    }
+    else if (kHeld & KEY_LEFT) {
+        last_key = LV_KEY_LEFT;
+        key_pressed = true;
+    }
+    else if (kHeld & KEY_RIGHT) {
+        last_key = LV_KEY_RIGHT;
+        key_pressed = true;
+    }
+    else if (kHeld & KEY_A) {
+        last_key = LV_KEY_ENTER;
+        key_pressed = true;
+    }
+    else if (kHeld & KEY_B) {
+        last_key = LV_KEY_ESC;
+        key_pressed = true;
+    }
+    else if (kHeld & KEY_L) {
+        last_key = LV_KEY_PREV;
+        key_pressed = true;
+    }
+    else if (kHeld & KEY_R) {
+        last_key = LV_KEY_NEXT;
+        key_pressed = true;
+    }
+
+    data->key = last_key;
+
+    if (key_pressed)
+        data->state = LV_INDEV_STATE_PRESSED;
+    else
+        data->state = LV_INDEV_STATE_RELEASED;
+}
+
 #else /*Enable this file at the top*/
 
 /*This dummy typedef exists purely to silence -Wpedantic.*/