fix: hitting 'b' or 'h' in main menu raises exception

Signed-off-by: Dominik Willner <th33xitus@gmail.com>

kiauh/components/klipper_firmware/__init__.py

@@ -0,0 +1,12 @@
+# ======================================================================= #
+#  Copyright (C) 2020 - 2024 Dominik Willner <th33xitus@gmail.com>        #
+#                                                                         #
+#  This file is part of KIAUH - Klipper Installation And Update Helper    #
+#  https://github.com/dw-0/kiauh                                          #
+#                                                                         #
+#  This file may be distributed under the terms of the GNU GPLv3 license  #
+# ======================================================================= #
+
+from components.klipper import KLIPPER_DIR
+
+SD_FLASH_SCRIPT = KLIPPER_DIR.joinpath("scripts/flash-sdcard.sh")

kiauh/components/klipper_firmware/flash_options.py

@@ -13,8 +13,8 @@ from typing import Union, List
 
 
 class FlashMethod(Enum):
-    REGULAR = "REGULAR"
+    REGULAR = "Regular"
-    SD_CARD = "SD_CARD"
+    SD_CARD = "SD Card"
 
 
 class FlashCommand(Enum):
@@ -24,7 +24,7 @@ class FlashCommand(Enum):
 
 class ConnectionType(Enum):
     USB = "USB"
-    USB_DFU = "USB_DFU"
+    USB_DFU = "USB (DFU)"
     UART = "UART"
 
 
@@ -36,6 +36,7 @@ class FlashOptions:
     _mcu_list: List[str] = field(default_factory=list)
     _selected_mcu: str = ""
     _selected_board: str = ""
+    _selected_baudrate: int = 250000
 
     def __new__(cls, *args, **kwargs):
         if not cls._instance:
@@ -93,3 +94,11 @@ class FlashOptions:
     @selected_board.setter
     def selected_board(self, value: str) -> None:
         self._selected_board = value
+
+    @property
+    def selected_baudrate(self) -> int:
+        return self._selected_baudrate
+
+    @selected_baudrate.setter
+    def selected_baudrate(self, value: int) -> None:
+        self._selected_baudrate = value

kiauh/components/klipper_firmware/flash_utils.py

@@ -7,15 +7,35 @@
 #  This file may be distributed under the terms of the GNU GPLv3 license  #
 # ======================================================================= #
 
+import subprocess
 from subprocess import CalledProcessError, check_output, Popen, PIPE, STDOUT
 from typing import List
 
 from components.klipper import KLIPPER_DIR
-from components.klipper_firmware.flash_options import FlashOptions, FlashCommand
+from components.klipper_firmware import SD_FLASH_SCRIPT
+from components.klipper_firmware.flash_options import (
+    FlashOptions,
+    FlashMethod,
+)
 from utils.logger import Logger
 from utils.system_utils import log_process
 
 
+def find_firmware_file(method: FlashMethod) -> bool:
+    target = KLIPPER_DIR.joinpath("out")
+    target_exists = target.exists()
+    if method is FlashMethod.REGULAR:
+        f1 = "klipper.elf.hex"
+        f2 = "klipper.elf"
+        fw_file_exists = target.joinpath(f1).exists() and target.joinpath(f2).exists()
+    elif method is FlashMethod.SD_CARD:
+        fw_file_exists = target.joinpath("klipper.bin").exists()
+    else:
+        raise Exception("Unknown flash method")
+
+    return target_exists and fw_file_exists
+
+
 def find_usb_device_by_id() -> List[str]:
     try:
         command = "find /dev/serial/by-id/* 2>/dev/null"
@@ -49,21 +69,55 @@ def find_usb_dfu_device() -> List[str]:
         return []
 
 
-def flash_device(flash_options: FlashOptions) -> None:
+def get_sd_flash_board_list() -> List[str]:
+    if not KLIPPER_DIR.exists() or not SD_FLASH_SCRIPT.exists():
+        return []
+
     try:
+        cmd = f"{SD_FLASH_SCRIPT} -l"
+        blist = subprocess.check_output(cmd, shell=True, text=True)
+        return blist.splitlines()[1:]
+    except subprocess.CalledProcessError as e:
+        Logger.print_error(f"An unexpected error occured:\n{e}")
+
+
+def start_flash_process(flash_options: FlashOptions) -> None:
+    Logger.print_status(f"Flashing '{flash_options.selected_mcu}' ...")
+    try:
+        if not flash_options.flash_method:
+            raise Exception("Missing value for flash_method!")
+        if not flash_options.flash_command:
+            raise Exception("Missing value for flash_command!")
         if not flash_options.selected_mcu:
             raise Exception("Missing value for selected_mcu!")
+        if not flash_options.connection_type:
+            raise Exception("Missing value for connection_type!")
+        if (
+            flash_options.flash_method == FlashMethod.SD_CARD
+            and not flash_options.selected_board
+        ):
+            raise Exception("Missing value for selected_board!")
 
-        if flash_options.flash_command is FlashCommand.FLASH:
+        if flash_options.flash_method is FlashMethod.REGULAR:
-            command = [
+            cmd = [
                 "make",
                 flash_options.flash_command.value,
                 f"FLASH_DEVICE={flash_options.selected_mcu}",
             ]
-            process = Popen(
+        elif flash_options.flash_method is FlashMethod.SD_CARD:
-                command, cwd=KLIPPER_DIR, stdout=PIPE, stderr=STDOUT, text=True
+            if not SD_FLASH_SCRIPT.exists():
-            )
+                raise Exception("Unable to find Klippers sdcard flash script!")
+            cmd = [
+                SD_FLASH_SCRIPT,
+                "-b",
+                flash_options.selected_baudrate,
+                flash_options.selected_mcu,
+                flash_options.selected_board,
+            ]
+        else:
+            raise Exception("Invalid value for flash_method!")
 
+        process = Popen(cmd, cwd=KLIPPER_DIR, stdout=PIPE, stderr=STDOUT, text=True)
         log_process(process)
 
         rc = process.returncode

kiauh/components/klipper_firmware/menus/klipper_flash_error_menu.py

@@ -0,0 +1,97 @@
+# ======================================================================= #
+#  Copyright (C) 2020 - 2024 Dominik Willner <th33xitus@gmail.com>        #
+#                                                                         #
+#  This file is part of KIAUH - Klipper Installation And Update Helper    #
+#  https://github.com/dw-0/kiauh                                          #
+#                                                                         #
+#  This file may be distributed under the terms of the GNU GPLv3 license  #
+# ======================================================================= #
+import textwrap
+
+from components.klipper_firmware.flash_options import FlashOptions, FlashMethod
+from core.menus import FooterType
+from core.menus.base_menu import BaseMenu
+from utils.constants import COLOR_RED, RESET_FORMAT
+
+
+# noinspection PyUnusedLocal
+# noinspection PyMethodMayBeStatic
+class KlipperNoFirmwareErrorMenu(BaseMenu):
+    def __init__(self):
+        super().__init__()
+
+        self.flash_options = FlashOptions()
+        self.default_option = self.go_back
+        self.footer_type = FooterType.BLANK
+        self.input_label_txt = "Press ENTER to go back to [Advanced Menu]"
+
+    def print_menu(self) -> None:
+        header = "!!! NO FIRMWARE FILE FOUND !!!"
+        color = COLOR_RED
+        count = 62 - len(color) - len(RESET_FORMAT)
+        line1 = f"{color}Unable to find a compiled firmware file!{RESET_FORMAT}"
+        menu = textwrap.dedent(
+            f"""
+            /=======================================================\\
+            | {color}{header:^{count}}{RESET_FORMAT} |
+            |-------------------------------------------------------|
+            | {line1:<62} |
+            |                                                       |
+            | Make sure, that:                                      |
+            | ● the folder '~/klipper/out' and its content exist    |
+            | ● the folder contains the following file:             |
+            """
+        )[1:]
+
+        if self.flash_options.flash_method is FlashMethod.REGULAR:
+            menu += "|   ● 'klipper.elf'                                     |\n"
+            menu += "|   ● 'klipper.elf.hex'                                 |\n"
+        else:
+            menu += "|   ● 'klipper.bin'                                     |\n"
+
+        print(menu, end="")
+
+    def go_back(self, **kwargs) -> None:
+        from core.menus.advanced_menu import AdvancedMenu
+
+        AdvancedMenu().run()
+
+
+# noinspection PyUnusedLocal
+# noinspection PyMethodMayBeStatic
+class KlipperNoBoardTypesErrorMenu(BaseMenu):
+    def __init__(self):
+        super().__init__()
+
+        self.default_option = self.go_back
+        self.footer_type = FooterType.BLANK
+        self.input_label_txt = "Press ENTER to go back to [Main Menu]"
+
+    def print_menu(self) -> None:
+        header = "!!! ERROR GETTING BOARD LIST !!!"
+        color = COLOR_RED
+        count = 62 - len(color) - len(RESET_FORMAT)
+        line1 = f"{color}Reading the list of supported boards failed!{RESET_FORMAT}"
+        menu = textwrap.dedent(
+            f"""
+            /=======================================================\\
+            | {color}{header:^{count}}{RESET_FORMAT} |
+            |-------------------------------------------------------|
+            | {line1:<62} |
+            |                                                       |
+            | Make sure, that:                                      |
+            | ● the folder '~/klipper' and all its content exist    |
+            | ● the content of folder '~/klipper' is not currupted  |
+            | ● the file '~/klipper/scripts/flash-sd.py' exist      |
+            | ● your current user has access to those files/folders |
+            |                                                       |
+            | If in doubt or this process continues to fail, please |
+            | consider to download Klipper again.                   |
+            """
+        )[1:]
+        print(menu, end="")
+
+    def go_back(self, **kwargs) -> None:
+        from core.menus.main_menu import MainMenu
+
+        MainMenu().run()

kiauh/components/klipper_firmware/menus/klipper_flash_help_menu.py

@@ -0,0 +1,127 @@
+# ======================================================================= #
+#  Copyright (C) 2020 - 2024 Dominik Willner <th33xitus@gmail.com>        #
+#                                                                         #
+#  This file is part of KIAUH - Klipper Installation And Update Helper    #
+#  https://github.com/dw-0/kiauh                                          #
+#                                                                         #
+#  This file may be distributed under the terms of the GNU GPLv3 license  #
+# ======================================================================= #
+import textwrap
+
+from core.menus.base_menu import BaseMenu
+from utils.constants import COLOR_CYAN, RESET_FORMAT, COLOR_YELLOW
+
+
+class KlipperFlashMethodHelpMenu(BaseMenu):
+    def __init__(self, previous_menu: BaseMenu):
+        super().__init__()
+
+        self.previous_menu: BaseMenu = previous_menu
+
+    def print_menu(self) -> None:
+        header = " < ? > Help: Flash MCU < ? > "
+        color = COLOR_YELLOW
+        count = 62 - len(color) - len(RESET_FORMAT)
+        subheader1 = f"{COLOR_CYAN}Regular flashing method:{RESET_FORMAT}"
+        subheader2 = f"{COLOR_CYAN}Updating via SD-Card Update:{RESET_FORMAT}"
+        menu = textwrap.dedent(
+            f"""
+            /=======================================================\\
+            | {color}{header:~^{count}}{RESET_FORMAT} |
+            |-------------------------------------------------------|
+            | {subheader1:<62} |
+            | The default method to flash controller boards which   |
+            | are connected and updated over USB and not by placing |
+            | a compiled firmware file onto an internal SD-Card.    |
+            |                                                       |
+            | Common controllers that get flashed that way are:     |
+            | - Arduino Mega 2560                                   |
+            | - Fysetc F6 / S6 (used without a Display + SD-Slot)   |
+            |                                                       |
+            | {subheader2:<62} |
+            | Many popular controller boards ship with a bootloader |
+            | capable of updating the firmware via SD-Card.         |
+            | Choose this method if your controller board supports  |
+            | this way of updating. This method ONLY works for up-  |
+            | grading firmware. The initial flashing procedure must |
+            | be done manually per the instructions that apply to   |
+            | your controller board.                                |
+            |                                                       |
+            | Common controllers that can be flashed that way are:  |
+            | - BigTreeTech SKR 1.3 / 1.4 (Turbo) / E3 / Mini E3    |
+            | - Fysetc F6 / S6 (used with a Display + SD-Slot)      |
+            | - Fysetc Spider                                       |
+            |                                                       |
+            """
+        )[1:]
+        print(menu, end="")
+
+
+class KlipperFlashCommandHelpMenu(BaseMenu):
+    def __init__(self, previous_menu: BaseMenu):
+        super().__init__()
+
+        self.previous_menu: BaseMenu = previous_menu
+
+    def print_menu(self) -> None:
+        header = " < ? > Help: Flash MCU < ? > "
+        color = COLOR_YELLOW
+        count = 62 - len(color) - len(RESET_FORMAT)
+        subheader1 = f"{COLOR_CYAN}make flash:{RESET_FORMAT}"
+        subheader2 = f"{COLOR_CYAN}make serialflash:{RESET_FORMAT}"
+        menu = textwrap.dedent(
+            f"""
+            /=======================================================\\
+            | {color}{header:~^{count}}{RESET_FORMAT} |
+            |-------------------------------------------------------|
+            | {subheader1:<62} |
+            | The default command to flash controller board, it     |
+            | will detect selected microcontroller and use suitable |
+            | tool for flashing it.                                 |
+            |                                                       |
+            | {subheader2:<62} |
+            | Special command to flash STM32 microcontrollers in    |
+            | DFU mode but connected via serial. stm32flash command |
+            | will be used internally.                              |
+            |                                                       |
+            """
+        )[1:]
+        print(menu, end="")
+
+
+class KlipperMcuConnectionHelpMenu(BaseMenu):
+    def __init__(self, previous_menu: BaseMenu):
+        super().__init__()
+
+        self.previous_menu: BaseMenu = previous_menu
+
+    def print_menu(self) -> None:
+        header = " < ? > Help: Flash MCU < ? > "
+        color = COLOR_YELLOW
+        count = 62 - len(color) - len(RESET_FORMAT)
+        subheader1 = f"{COLOR_CYAN}USB:{RESET_FORMAT}"
+        subheader2 = f"{COLOR_CYAN}UART:{RESET_FORMAT}"
+        menu = textwrap.dedent(
+            f"""
+            /=======================================================\\
+            | {color}{header:~^{count}}{RESET_FORMAT} |
+            |-------------------------------------------------------|
+            | {subheader1:<62} |
+            | Selecting USB as the connection method will scan the  |
+            | USB ports for connected controller boards. This will  |
+            | be similar to the 'ls /dev/serial/by-id/*' command    |
+            | suggested by the official Klipper documentation for   |
+            | determining successfull USB connections!              |
+            |                                                       |
+            | {subheader2:<62} |
+            | Selecting UART as the connection method will list all |
+            | possible UART serial ports. Note: This method ALWAYS  |
+            | returns something as it seems impossible to determine |
+            | if a valid Klipper controller board is connected or   |
+            | not. Because of that, you MUST know which UART serial |
+            | port your controller board is connected to when using |
+            | this connection method.                               |
+            |                                                       |
+            """
+        )[1:]
+        print(menu, end="")

kiauh/components/klipper_firmware/menus/klipper_flash_menu.py

@@ -20,13 +20,24 @@ from components.klipper_firmware.flash_utils import (
     find_usb_device_by_id,
     find_uart_device,
     find_usb_dfu_device,
-    flash_device,
+    get_sd_flash_board_list,
+    start_flash_process,
+    find_firmware_file,
+)
+from components.klipper_firmware.menus.klipper_flash_error_menu import (
+    KlipperNoBoardTypesErrorMenu,
+    KlipperNoFirmwareErrorMenu,
+)
+from components.klipper_firmware.menus.klipper_flash_help_menu import (
+    KlipperMcuConnectionHelpMenu,
+    KlipperFlashCommandHelpMenu,
+    KlipperFlashMethodHelpMenu,
 )
 from core.menus import FooterType
 
 from core.menus.base_menu import BaseMenu
 from utils.constants import COLOR_CYAN, RESET_FORMAT, COLOR_YELLOW, COLOR_RED
-from utils.input_utils import get_confirm
+from utils.input_utils import get_number_input
 from utils.logger import Logger
 
 
@@ -37,10 +48,10 @@ class KlipperFlashMethodMenu(BaseMenu):
         super().__init__()
 
         self.previous_menu: BaseMenu = previous_menu
+        self.help_menu = KlipperFlashMethodHelpMenu
         self.options = {
             "1": self.select_regular,
             "2": self.select_sdcard,
-            "h": self.help_menu,
         }
         self.input_label_txt = "Select flash method"
         self.footer_type = FooterType.BACK_HELP
@@ -48,7 +59,11 @@ class KlipperFlashMethodMenu(BaseMenu):
         self.flash_options = FlashOptions()
 
     def print_menu(self) -> None:
-        header = " [ Flash MCU ] "
+        header = " [ MCU Flash Menu ] "
+        subheader = f"{COLOR_YELLOW}ATTENTION:{RESET_FORMAT}"
+        subline1 = f"{COLOR_YELLOW}Make sure to select the correct method for the  MCU!{RESET_FORMAT}"
+        subline2 = f"{COLOR_YELLOW}Not all MCUs support both methods!{RESET_FORMAT}"
+
         color = COLOR_CYAN
         count = 62 - len(color) - len(RESET_FORMAT)
         menu = textwrap.dedent(
@@ -56,9 +71,11 @@ class KlipperFlashMethodMenu(BaseMenu):
             /=======================================================\\
             | {color}{header:~^{count}}{RESET_FORMAT} |
             |-------------------------------------------------------|
-            | Please select the flashing method to flash your MCU.  |
+            | Select the flash method for flashing the MCU.         |
-            | Make sure to only select a method your MCU supports.  |
+            |                                                       |
-            | Not all MCUs support both methods!                    |
+            | {subheader:<62} |
+            | {subline1:<62} |
+            | {subline2:<62} |
             |-------------------------------------------------------|
             |                                                       |
             | 1) Regular flashing method                            |
@@ -77,10 +94,10 @@ class KlipperFlashMethodMenu(BaseMenu):
         self.goto_next_menu()
 
     def goto_next_menu(self, **kwargs):
+        if find_firmware_file(self.flash_options.flash_method):
             KlipperFlashCommandMenu(previous_menu=self).run()
-
+        else:
-    def help_menu(self, **kwargs):
+            KlipperNoFirmwareErrorMenu().run()
-        KlipperFlashMethodHelpMenu(previous_menu=self).run()
 
 
 # noinspection PyUnusedLocal
@@ -90,10 +107,10 @@ class KlipperFlashCommandMenu(BaseMenu):
         super().__init__()
 
         self.previous_menu: BaseMenu = previous_menu
+        self.help_menu = KlipperFlashCommandHelpMenu
         self.options = {
             "1": self.select_flash,
             "2": self.select_serialflash,
-            "h": self.help_menu,
         }
         self.default_option = self.select_flash
         self.input_label_txt = "Select flash command"
@@ -125,9 +142,6 @@ class KlipperFlashCommandMenu(BaseMenu):
     def goto_next_menu(self, **kwargs):
         KlipperSelectMcuConnectionMenu(previous_menu=self).run()
 
-    def help_menu(self, **kwargs):
-        KlipperFlashCommandHelpMenu(previous_menu=self).run()
-
 
 # noinspection PyUnusedLocal
 # noinspection PyMethodMayBeStatic
@@ -137,11 +151,11 @@ class KlipperSelectMcuConnectionMenu(BaseMenu):
 
         self.__standalone = standalone
         self.previous_menu: BaseMenu = previous_menu
+        self.help_menu = KlipperMcuConnectionHelpMenu
         self.options = {
             "1": self.select_usb,
             "2": self.select_dfu,
             "3": self.select_usb_dfu,
-            "h": self.help_menu,
         }
         self.input_label_txt = "Select connection type"
         self.footer_type = FooterType.BACK_HELP
@@ -209,9 +223,6 @@ class KlipperSelectMcuConnectionMenu(BaseMenu):
     def goto_next_menu(self, **kwargs):
         KlipperSelectMcuIdMenu(previous_menu=self).run()
 
-    def help_menu(self, **kwargs):
-        KlipperMcuConnectionHelpMenu(previous_menu=self).run()
-
 
 # noinspection PyUnusedLocal
 # noinspection PyMethodMayBeStatic
@@ -256,132 +267,139 @@ class KlipperSelectMcuIdMenu(BaseMenu):
         selected_mcu = self.mcu_list[index]
         self.flash_options.selected_mcu = selected_mcu
 
-        print(f"{COLOR_CYAN}###### You selected:{RESET_FORMAT}")
+        if self.flash_options.flash_method == FlashMethod.SD_CARD:
-        print(f"● MCU #{index}: {selected_mcu}\n")
+            KlipperSelectSDFlashBoardMenu(previous_menu=self).run()
+        elif self.flash_options.flash_method == FlashMethod.REGULAR:
+            KlipperFlashOverviewMenu(previous_menu=self).run()
 
-        if get_confirm("Continue", allow_go_back=True):
-            Logger.print_status(f"Flashing '{selected_mcu}' ...")
-            flash_device(self.flash_options)
 
-        self.goto_next_menu()
+# noinspection PyUnusedLocal
+# noinspection PyMethodMayBeStatic
+class KlipperSelectSDFlashBoardMenu(BaseMenu):
+    def __init__(self, previous_menu: BaseMenu):
+        super().__init__()
 
-    def goto_next_menu(self, **kwargs):
+        self.previous_menu: BaseMenu = previous_menu
-        from core.menus.main_menu import MainMenu
+        self.flash_options = FlashOptions()
+        self.available_boards = get_sd_flash_board_list()
+        self.input_label_txt = "Select board type"
+
+        options = {f"{i}": self.board_select for i in range(len(self.available_boards))}
+        self.options = options
+
+    def print_menu(self) -> None:
+        if len(self.available_boards) < 1:
+            KlipperNoBoardTypesErrorMenu().run()
+        else:
+            menu = textwrap.dedent(
+                """
+                /=======================================================\\
+                | Please select the type of board that corresponds to   |
+                | the currently selected MCU ID you chose before.       |
+                |                                                       |
+                | The following boards are currently supported:         |
+                |-------------------------------------------------------|
+                """
+            )[1:]
+
+            for i, board in enumerate(self.available_boards):
+                line = f" {i}) {board}"
+                menu += f"|{line:<55}|\n"
+
+            print(menu, end="")
+
+    def board_select(self, **kwargs):
+        board = int(kwargs.get("opt_index"))
+        self.flash_options.selected_board = self.available_boards[board]
+        self.baudrate_select()
+
+    def baudrate_select(self, **kwargs):
+        menu = textwrap.dedent(
+            """
+            /=======================================================\\
+            | If your board is flashed with firmware that connects  |
+            | at a custom baud rate, please change it now.          |
+            |                                                       |
+            | If you are unsure, stick to the default 250000!       |
+            \\=======================================================/
+            """
+        )[1:]
+        print(menu, end="")
+        self.flash_options.selected_baudrate = get_number_input(
+            question="Please set the baud rate",
+            default=250000,
+            min_count=0,
+            allow_go_back=True,
+        )
+        KlipperFlashOverviewMenu(previous_menu=self).run()
+
+
+# noinspection PyUnusedLocal
+# noinspection PyMethodMayBeStatic
+class KlipperFlashOverviewMenu(BaseMenu):
+    def __init__(self, previous_menu: BaseMenu):
+        super().__init__()
+
+        self.previous_menu: BaseMenu = previous_menu
+        self.flash_options = FlashOptions()
+        self.options = {"Y": self.execute_flash, "N": self.abort_process}
+        self.input_label_txt = "Perform action (default=Y)"
+        self.default_option = self.execute_flash
+
+    def print_menu(self) -> None:
+        header = "!!! ATTENTION !!!"
+        color = COLOR_RED
+        count = 62 - len(color) - len(RESET_FORMAT)
+
+        method = self.flash_options.flash_method.value
+        command = self.flash_options.flash_command.value
+        conn_type = self.flash_options.connection_type.value
+        mcu = self.flash_options.selected_mcu
+        board = self.flash_options.selected_board
+        baudrate = self.flash_options.selected_baudrate
+        subheader = f"[{COLOR_CYAN}Overview{RESET_FORMAT}]"
+        menu = textwrap.dedent(
+            f"""
+            /=======================================================\\
+            | {color}{header:^{count}}{RESET_FORMAT} |
+            |-------------------------------------------------------|
+            | Before contuining the flashing process, please check  |
+            | if all parameters were set correctly! Once you made   |
+            | sure everything is correct, start the process. If any |
+            | parameter needs to be changed, you can go back (B)    |
+            | step by step or abort and start from the beginning.   |
+            |{subheader:-^64}|
+            
+            """
+        )[1:]
+
+        menu += f"   ● MCU: {COLOR_CYAN}{mcu}{RESET_FORMAT}\n"
+        menu += f"   ● Connection: {COLOR_CYAN}{conn_type}{RESET_FORMAT}\n"
+        menu += f"   ● Flash method: {COLOR_CYAN}{method}{RESET_FORMAT}\n"
+        menu += f"   ● Flash command: {COLOR_CYAN}{command}{RESET_FORMAT}\n"
+
+        if self.flash_options.flash_method is FlashMethod.SD_CARD:
+            menu += f"   ● Board type: {COLOR_CYAN}{board}{RESET_FORMAT}\n"
+            menu += f"   ● Baudrate: {COLOR_CYAN}{baudrate}{RESET_FORMAT}\n"
+
+        menu += textwrap.dedent(
+            """
+            |-------------------------------------------------------|
+            |  Y) Start flash process                               |
+            |  N) Abort - Return to Advanced Menu                   |
+            """
+        )
+        print(menu, end="")
+
+    def execute_flash(self, **kwargs):
         from core.menus.advanced_menu import AdvancedMenu
 
-        AdvancedMenu(previous_menu=MainMenu()).run()
+        start_flash_process(self.flash_options)
+        Logger.print_info("Returning to MCU Flash Menu in 5 seconds ...")
+        time.sleep(5)
+        KlipperFlashMethodMenu(previous_menu=AdvancedMenu()).run()
 
+    def abort_process(self, **kwargs):
+        from core.menus.advanced_menu import AdvancedMenu
 
-class KlipperFlashMethodHelpMenu(BaseMenu):
+        AdvancedMenu().run()
-    def __init__(self, previous_menu: BaseMenu):
-        super().__init__()
-
-        self.previous_menu: BaseMenu = previous_menu
-
-    def print_menu(self) -> None:
-        header = " < ? > Help: Flash MCU < ? > "
-        color = COLOR_YELLOW
-        count = 62 - len(color) - len(RESET_FORMAT)
-        subheader1 = f"{COLOR_CYAN}Regular flashing method:{RESET_FORMAT}"
-        subheader2 = f"{COLOR_CYAN}Updating via SD-Card Update:{RESET_FORMAT}"
-        menu = textwrap.dedent(
-            f"""
-            /=======================================================\\
-            | {color}{header:~^{count}}{RESET_FORMAT} |
-            |-------------------------------------------------------|
-            | {subheader1:<62} |
-            | The default method to flash controller boards which   |
-            | are connected and updated over USB and not by placing |
-            | a compiled firmware file onto an internal SD-Card.    |
-            |                                                       |
-            | Common controllers that get flashed that way are:     |
-            | - Arduino Mega 2560                                   |
-            | - Fysetc F6 / S6 (used without a Display + SD-Slot)   |
-            |                                                       |
-            | {subheader2:<62} |
-            | Many popular controller boards ship with a bootloader |
-            | capable of updating the firmware via SD-Card.         |
-            | Choose this method if your controller board supports  |
-            | this way of updating. This method ONLY works for up-  |
-            | grading firmware. The initial flashing procedure must |
-            | be done manually per the instructions that apply to   |
-            | your controller board.                                |
-            |                                                       |
-            | Common controllers that can be flashed that way are:  |
-            | - BigTreeTech SKR 1.3 / 1.4 (Turbo) / E3 / Mini E3    |
-            | - Fysetc F6 / S6 (used with a Display + SD-Slot)      |
-            | - Fysetc Spider                                       |
-            |                                                       |
-            """
-        )[1:]
-        print(menu, end="")
-
-
-class KlipperFlashCommandHelpMenu(BaseMenu):
-    def __init__(self, previous_menu: BaseMenu):
-        super().__init__()
-
-        self.previous_menu: BaseMenu = previous_menu
-
-    def print_menu(self) -> None:
-        header = " < ? > Help: Flash MCU < ? > "
-        color = COLOR_YELLOW
-        count = 62 - len(color) - len(RESET_FORMAT)
-        subheader1 = f"{COLOR_CYAN}make flash:{RESET_FORMAT}"
-        subheader2 = f"{COLOR_CYAN}make serialflash:{RESET_FORMAT}"
-        menu = textwrap.dedent(
-            f"""
-            /=======================================================\\
-            | {color}{header:~^{count}}{RESET_FORMAT} |
-            |-------------------------------------------------------|
-            | {subheader1:<62} |
-            | The default command to flash controller board, it     |
-            | will detect selected microcontroller and use suitable |
-            | tool for flashing it.                                 |
-            |                                                       |
-            | {subheader2:<62} |
-            | Special command to flash STM32 microcontrollers in    |
-            | DFU mode but connected via serial. stm32flash command |
-            | will be used internally.                              |
-            |                                                       |
-            """
-        )[1:]
-        print(menu, end="")
-
-
-class KlipperMcuConnectionHelpMenu(BaseMenu):
-    def __init__(self, previous_menu: BaseMenu):
-        super().__init__()
-
-        self.previous_menu: BaseMenu = previous_menu
-
-    def print_menu(self) -> None:
-        header = " < ? > Help: Flash MCU < ? > "
-        color = COLOR_YELLOW
-        count = 62 - len(color) - len(RESET_FORMAT)
-        subheader1 = f"{COLOR_CYAN}USB:{RESET_FORMAT}"
-        subheader2 = f"{COLOR_CYAN}UART:{RESET_FORMAT}"
-        menu = textwrap.dedent(
-            f"""
-            /=======================================================\\
-            | {color}{header:~^{count}}{RESET_FORMAT} |
-            |-------------------------------------------------------|
-            | {subheader1:<62} |
-            | Selecting USB as the connection method will scan the  |
-            | USB ports for connected controller boards. This will  |
-            | be similar to the 'ls /dev/serial/by-id/*' command    |
-            | suggested by the official Klipper documentation for   |
-            | determining successfull USB connections!              |
-            |                                                       |
-            | {subheader2:<62} |
-            | Selecting UART as the connection method will list all |
-            | possible UART serial ports. Note: This method ALWAYS  |
-            | returns something as it seems impossible to determine |
-            | if a valid Klipper controller board is connected or   |
-            | not. Because of that, you MUST know which UART serial |
-            | port your controller board is connected to when using |
-            | this connection method.                               |
-            |                                                       |
-            """
-        )[1:]
-        print(menu, end="")

kiauh/core/menus/__init__.py

@@ -14,13 +14,7 @@ class FooterType(Enum):
     QUIT = "QUIT"
     BACK = "BACK"
     BACK_HELP = "BACK_HELP"
-
+    BLANK = "BLANK"
-
-NAVI_OPTIONS = {
-    FooterType.QUIT: ["q"],
-    FooterType.BACK: ["b"],
-    FooterType.BACK_HELP: ["b", "h"],
-}
 
 
 class ExitAppException(Exception):

kiauh/core/menus/advanced_menu.py

@@ -19,10 +19,12 @@ from utils.constants import COLOR_YELLOW, RESET_FORMAT
 
 # noinspection PyUnusedLocal
 class AdvancedMenu(BaseMenu):
-    def __init__(self, previous_menu: BaseMenu):
+    def __init__(self):
         super().__init__()
 
-        self.previous_menu: BaseMenu = previous_menu
+        from core.menus.main_menu import MainMenu
+
+        self.previous_menu: BaseMenu = MainMenu()
         self.options = {
             "1": None,
             "2": None,

kiauh/core/menus/base_menu.py

@@ -12,10 +12,10 @@ from __future__ import annotations
 import subprocess
 import sys
 import textwrap
-from abc import abstractmethod, ABC
+from abc import abstractmethod
 from typing import Dict, Union, Callable, Type, Tuple
 
-from core.menus import FooterType, NAVI_OPTIONS, ExitAppException, GoBackException
+from core.menus import FooterType, ExitAppException, GoBackException
 from utils.constants import (
     COLOR_GREEN,
     COLOR_YELLOW,
@@ -92,22 +92,55 @@ def print_back_help_footer():
     print(footer, end="")
 
 
-Options = Dict[str, Callable]
+def print_blank_footer():
+    print("\=======================================================/")
 
 
-class BaseMenu(ABC):
+class PostInitCaller(type):
-    options: Options = {}
+    def __call__(cls, *args, **kwargs):
+        obj = type.__call__(cls, *args, **kwargs)
+        obj.__post_init__()
+        return obj
+
+
+# noinspection PyUnusedLocal
+# noinspection PyMethodMayBeStatic
+class BaseMenu(metaclass=PostInitCaller):
+    options: Dict[str, Callable] = {}
     options_offset: int = 0
     default_option: Union[Callable, None] = None
     input_label_txt: str = "Perform action"
     header: bool = False
     previous_menu: Union[Type[BaseMenu], BaseMenu] = None
+    help_menu: Type[BaseMenu] = None
     footer_type: FooterType = FooterType.BACK
 
-    def __init__(self):
+    def __init__(self, **kwargs):
         if type(self) is BaseMenu:
             raise NotImplementedError("BaseMenu cannot be instantiated directly.")
 
+    def __post_init__(self):
+        # conditionally add options based on footer type
+        if self.footer_type is FooterType.QUIT:
+            self.options["q"] = self.__exit
+        if self.footer_type is FooterType.BACK:
+            self.options["b"] = self.__go_back
+        if self.footer_type is FooterType.BACK_HELP:
+            self.options["b"] = self.__go_back
+            self.options["h"] = self.__go_to_help
+        # if defined, add the default option to the options dict
+        if self.default_option is not None:
+            self.options[""] = self.default_option
+
+    def __go_back(self, **kwargs):
+        raise GoBackException()
+
+    def __go_to_help(self, **kwargs):
+        self.help_menu(previous_menu=self).run()
+
+    def __exit(self, **kwargs):
+        raise ExitAppException()
+
     @abstractmethod
     def print_menu(self) -> None:
         raise NotImplementedError("Subclasses must implement the print_menu method")
@@ -119,6 +152,8 @@ class BaseMenu(ABC):
             print_back_footer()
         elif self.footer_type is FooterType.BACK_HELP:
             print_back_help_footer()
+        elif self.footer_type is FooterType.BLANK:
+            print_blank_footer()
         else:
             raise NotImplementedError("Method for printing footer not implemented.")
 
@@ -138,20 +173,8 @@ class BaseMenu(ABC):
         usr_input = usr_input.lower()
         option = self.options.get(usr_input, None)
 
-        # check if usr_input contains a character used for basic navigation, e.g. b, h or q
+        # if option/usr_input is None/empty string, we execute the menus default option if specified
-        # and if the current menu has the appropriate footer to allow for that action
+        if (option is None or usr_input == "") and self.default_option is not None:
-        is_valid_navigation = self.footer_type in NAVI_OPTIONS
-        user_navigated = usr_input in NAVI_OPTIONS[self.footer_type]
-        if is_valid_navigation and user_navigated:
-            if usr_input == "q":
-                raise ExitAppException()
-            elif usr_input == "b":
-                raise GoBackException()
-            elif usr_input == "h":
-                return option, usr_input
-
-        # if usr_input is None or an empty string, we execute the menues default option if specified
-        if usr_input == "" and self.default_option is not None:
             return self.default_option, usr_input
 
         # user selected a regular option
@@ -162,8 +185,10 @@ class BaseMenu(ABC):
         while True:
             print(f"{COLOR_CYAN}###### {self.input_label_txt}: {RESET_FORMAT}", end="")
             usr_input = input().lower()
+            validated_input = self.validate_user_input(usr_input)
+            method_to_call = validated_input[0]
 
-            if (validated_input := self.validate_user_input(usr_input)) is not None:
+            if method_to_call is not None:
                 return validated_input
             else:
                 Logger.print_error("Invalid input!", False)

kiauh/core/menus/main_menu.py

@@ -152,7 +152,7 @@ class MainMenu(BaseMenu):
         RemoveMenu(previous_menu=self).run()
 
     def advanced_menu(self, **kwargs):
-        AdvancedMenu(previous_menu=self).run()
+        AdvancedMenu().run()
 
     def backup_menu(self, **kwargs):
         BackupMenu(previous_menu=self).run()