136 lines
4.2 KiB
Python
136 lines
4.2 KiB
Python
# coding=utf-8
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import future
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from builtins import chr
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__author__ = "Felix Kunsmann <felix@kunsmann.eu>"
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__license__ = "GNU Affero General Public License http://www.gnu.org/licenses/agpl.html"
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__copyright__ = "Copyright (C) 2017 Felix Kunsmann - Released under terms of the AGPLv3 License"
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import octoprint.plugin
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from hd44780_callback import *
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import RPi.GPIO as GPIO
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from RPLCD import CharLCD
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from RPLCD import CursorMode
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from RPLCD import cursor
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class LCD_HD44780(octoprint.plugin.StartupPlugin,
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octoprint.plugin.SettingsPlugin):
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def __init__(self):
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self._pin_to_gpio_rev1 = [-1, -1, -1, 0, -1, 1, -1, 4, 14, -1, 15, 17, 18, 21, -1, 22, 23, -1, 24, 10, -1, 9, 25, 11, 8, -1, 7, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 ]
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self._pin_to_gpio_rev2 = [-1, -1, -1, 2, -1, 3, -1, 4, 14, -1, 15, 17, 18, 27, -1, 22, 23, -1, 24, 10, -1, 9, 25, 11, 8, -1, 7, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 ]
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self._pin_to_gpio_rev3 = [-1, -1, -1, 2, -1, 3, -1, 4, 14, -1, 15, 17, 18, 27, -1, 22, 23, -1, 24, 10, -1, 9, 25, 11, 8, -1, 7, -1, -1, 5, -1, 6, 12, 13, -1, 19, 16, 26, 20, -1, 21 ]
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self._configuredGPIOPins = []
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self.pin_rs = 15
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self.pin_rw = None
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self.pin_e = 16
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self.pin_d4 = 21
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self.pin_d5 = 22
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self.pin_d6 = 23
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self.pin_d7 = 24
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self.cols = 20
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self.rows = 4
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self._lcd = None
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self._custom_heatbed = (
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0b00000,
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0b11111,
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0b10101,
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0b10101,
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0b10001,
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0b10101,
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0b10101,
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0b11111,
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)
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self._custom_tool0 = (
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0b00000,
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0b11111,
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0b10001,
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0b10111,
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0b10011,
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0b10111,
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0b10001,
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0b11111,
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)
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def on_settings_initialized(self):
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self._initialize_lcd()
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self._printer.register_callback(LCD_HD44780_PrinterCallback)
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def _gpio_board_to_bcm(self, pin):
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if GPIO.RPI_REVISION == 1:
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pin_to_gpio = self._pin_to_gpio_rev1
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elif GPIO.RPI_REVISION == 2:
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pin_to_gpio = self._pin_to_gpio_rev2
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else:
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pin_to_gpio = self._pin_to_gpio_rev3
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return pin_to_gpio[pin]
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def _gpio_get_pin(self, pin):
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if GPIO.getmode() == GPIO.BOARD:
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return pin
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elif GPIO.getmode() == GPIO.BCM:
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return self._gpio_board_to_bcm(pin)
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else:
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return 0
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def _initialize_lcd(self):
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self._logger.info("Running RPi.GPIO version %s" % GPIO.VERSION)
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if GPIO.VERSION < "0.6":
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self._logger.error("RPi.GPIO version 0.6.0 or greater required.")
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GPIO.setwarnings(False)
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for pin in self._configuredGPIOPins:
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self._logger.debug("Cleaning up pin %s" % pin)
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try:
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GPIO.cleanup(self._gpio_get_pin(pin))
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except (RuntimeError, ValueError) as e:
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self._logger.error(e)
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self._configuredGPIOPins = []
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if GPIO.getmode() is None:
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GPIO.setmode(GPIO.BOARD)
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pin_rs = self._gpio_get_pin(self.pin_rs)
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if self.pin_rw is not None:
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pin_rw = self._gpio_get_pin(self.pin_rw)
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else:
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pin_rw = None
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pin_e = self._gpio_get_pin(self.pin_e)
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pin_d4 = self._gpio_get_pin(self.pin_d4)
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pin_d5 = self._gpio_get_pin(self.pin_d5)
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pin_d6 = self._gpio_get_pin(self.pin_d6)
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pin_d7 = self._gpio_get_pin(self.pin_d7)
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self._lcd = CharLCD(pin_rs=pin_rs, pin_rw=pin_rw, pin_e=pin_e, pins_data=[pin_d4, pin_d5, pin_d6, pin_d7],
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numbering_mode=GPIO.getmode(), cols=self.cols, rows=self.rows)
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self._lcd.create_char(0, self._custom_heatbed)
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self._lcd.create_char(1, self._custom_tool0)
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self._lcd.cursor_mode = CursorMode.hide
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self._lcd.clear()
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self._lcd.write_string('Octoprint')
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__plugin_name__ = "LCD: HD44780-compatible"
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def __plugin_load__():
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global __plugin_implementation__
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__plugin_implementation__ = LCD_HD44780()
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global __plugin_hooks__
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__plugin_hooks__ = {
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# "octoprint.plugin.softwareupdate.check_config": __plugin_implementation__.get_update_information
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}
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