From 0f84c8d79875b9440eda0d1a1f408a16e85ecb54 Mon Sep 17 00:00:00 2001
From: Lunzima <lunzima@lunzima.net>
Date: Wed, 25 Sep 2024 16:35:09 +0800
Subject: [PATCH] canokey-nrf52: enable dumb dongle support for nRF52 targets

---
 CMakeLists.txt | 2 ++
 src/device.c   | 8 ++++++++
 2 files changed, 10 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index be94e31..eada943 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -19,6 +19,8 @@ add_definitions(-DMBR_PRESENT)
 add_definitions(-DCFG_BOARD=${CANOKEY_BOARD})
 add_definitions(-DCFG_TUSB_MCU=OPT_MCU_NRF5X)
 add_definitions(-DMBEDTLS_CONFIG_FILE="${BASE_DIR}/config/mbedtls_config.h")
+# simulate touching for dumb dongles with no hardware buttons
+# add_definitions(-DDUMB_DONGLE)
 
 # nrf5 sdk configs
 add_definitions(-DCUSTOM_BOARD_INC=board_selection)
diff --git a/src/device.c b/src/device.c
index fe48603..28d49e6 100644
--- a/src/device.c
+++ b/src/device.c
@@ -40,6 +40,14 @@ inline static bool btn_down() {
     return bsp_board_button_state_get(BSP_BOARD_BUTTON_0);
 }
 
+/* Only works when DUMB_DONGLE macro is enabled. */
+int testmode_emulate_user_presence(void) {
+  if (!device_is_blinking()) return 0; // user only touches while blinking
+
+  set_touch_result(TOUCH_SHORT);
+  return 0;
+}
+
 static void (*tim_callback)(void);
 
 // every 10ms