Add feature screenshot

Makefile

@@ -42,6 +42,7 @@ ENABLE_BLMIN_TMP_OFF          ?= 0
 ENABLE_SCAN_RANGES            ?= 1
 ENABLE_FEAT_F4HWN             ?= 1
 ENABLE_FEAT_F4HWN_FIXED_PWR   ?= 0
+ENABLE_FEAT_F4HWN_SCREENSHOT  ?= 0
 
 # ---- DEBUGGING ----
 ENABLE_AM_FIX_SHOW_DATA       ?= 0
@@ -403,6 +404,9 @@ endif
 ifeq ($(ENABLE_FEAT_F4HWN_FIXED_PWR),1)
 	CFLAGS  += -DENABLE_FEAT_F4HWN_FIXED_PWR
 endif
+ifeq ($(ENABLE_FEAT_F4HWN_SCREENSHOT),1)
+	CFLAGS  += -DENABLE_FEAT_F4HWN_SCREENSHOT
+endif
 
 LDFLAGS =
 LDFLAGS += -z noexecstack -mcpu=cortex-m0 -nostartfiles -Wl,-T,firmware.ld -Wl,--gc-sections

app/action.c

@@ -43,6 +43,10 @@
 #include "ui/inputbox.h"
 #include "ui/ui.h"
 
+#ifdef ENABLE_FEAT_F4HWN_SCREENSHOT
+  #include "screenshot.h"
+#endif
+
 #if defined(ENABLE_FMRADIO)
 static void ACTION_Scan_FM(bool bRestart);
 #endif
@@ -314,6 +318,11 @@ void ACTION_Handle(KEY_Code_t Key, bool bKeyPressed, bool bKeyHeld)
 	{
 		funcShort = funcLong;
 
+		// For screenshot
+		#ifdef ENABLE_FEAT_F4HWN_SCREENSHOT
+			getScreenShot();
+		#endif
+
 		if (!bKeyPressed) //ignore release if held
 			return;
 	}

app/spectrum.c

@@ -27,6 +27,10 @@
 #include "ui/helper.h"
 #include "ui/main.h"
 
+#ifdef ENABLE_FEAT_F4HWN_SCREENSHOT
+  #include "screenshot.h"
+#endif
+
 struct FrequencyBandInfo {
   uint32_t lower;
   uint32_t upper;
@@ -572,6 +576,10 @@ static void ToggleBacklight() {
   } else {
     BACKLIGHT_TurnOff();
   }
+  // For screenshot
+  #ifdef ENABLE_FEAT_F4HWN_SCREENSHOT
+    getScreenShot();
+  #endif
 }
 
 static void ToggleStepsCount() {

screenshot.h

@@ -0,0 +1,51 @@
+/* Copyright 2024 Armel F4HWN
+ * https://github.com/armel
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *     Unless required by applicable law or agreed to in writing, software
+ *     distributed under the License is distributed on an "AS IS" BASIS,
+ *     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *     See the License for the specific language governing permissions and
+ *     limitations under the License.
+ */
+
+#include "debugging.h"
+#include "driver/st7565.h"
+
+static inline void getScreenShot(void)
+{
+	char str[2] = "";
+
+	LogUart("P1\n");
+	LogUart("128 64\n");
+
+	for(uint8_t b = 0; b < 8; b++)
+	{
+		for(uint8_t i = 0; i < 128; i++)
+		{
+			sprintf(str, "%d ", ((gStatusLine[i] >> b)  & 0x01));
+			LogUart(str);
+		}
+		LogUart("\n");
+	}
+
+	for(uint8_t l = 0; l < 7; l++)
+	{
+		for(uint8_t b = 0; b < 8; b++)
+		{
+			for(uint8_t i = 0; i < 128; i++)
+			{
+				sprintf(str, "%d ", ((gFrameBuffer[l][i] >> b)  & 0x01));
+				LogUart(str);
+			}
+		}
+		LogUart("\n");
+	}
+
+	LogUart("\n----------------\n");
+}