Add Waveshare LCD library

So future-Vixy doesn't go hunting on the internet
when she could just ask her Foxy 🦊

lib/lcdconfig.py

@@ -0,0 +1,116 @@
+# /*****************************************************************************
+# * | File        :	  epdconfig.py
+# * | Author      :   Waveshare team
+# * | Function    :   Hardware underlying interface
+# * | Info        :
+# *----------------
+# * | This version:   V1.0
+# * | Date        :   2019-06-21
+# * | Info        :   
+# ******************************************************************************
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documnetation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to  whom the Software is
+# furished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+
+import os
+import sys
+import time
+import spidev
+import logging
+import numpy as np
+from gpiozero import *
+
+class RaspberryPi:
+    def __init__(self,spi=spidev.SpiDev(0,0),spi_freq=40000000,rst = 27,dc = 25,bl = 18,bl_freq=1000,i2c=None,i2c_freq=100000):
+        self.np=np
+        self.INPUT = False
+        self.OUTPUT = True
+
+        self.SPEED  =spi_freq
+        self.BL_freq=bl_freq
+
+        self.RST_PIN= self.gpio_mode(rst,self.OUTPUT)
+        self.DC_PIN = self.gpio_mode(dc,self.OUTPUT)
+        self.BL_PIN = self.gpio_pwm(bl)
+        self.bl_DutyCycle(0)
+        
+        #Initialize SPI
+        self.SPI = spi
+        if self.SPI!=None :
+            self.SPI.max_speed_hz = spi_freq
+            self.SPI.mode = 0b00
+
+    def gpio_mode(self,Pin,Mode,pull_up = None,active_state = True):
+        if Mode:
+            return DigitalOutputDevice(Pin,active_high = True,initial_value =False)
+        else:
+            return DigitalInputDevice(Pin,pull_up=pull_up,active_state=active_state)
+
+    def digital_write(self, Pin, value):
+        if value:
+            Pin.on()
+        else:
+            Pin.off()
+
+    def digital_read(self, Pin):
+        return Pin.value
+
+    def delay_ms(self, delaytime):
+        time.sleep(delaytime / 1000.0)
+
+    def gpio_pwm(self,Pin):
+        return PWMOutputDevice(Pin,frequency = self.BL_freq)
+
+    def spi_writebyte(self, data):
+        if self.SPI!=None :
+            self.SPI.writebytes(data)
+
+    def bl_DutyCycle(self, duty):
+        self.BL_PIN.value = duty / 100
+        
+    def bl_Frequency(self,freq):# Hz
+        self.BL_PIN.frequency = freq
+           
+    def module_init(self):
+        if self.SPI!=None :
+            self.SPI.max_speed_hz = self.SPEED        
+            self.SPI.mode = 0b00     
+        return 0
+
+    def module_exit(self):
+        logging.debug("spi end")
+        if self.SPI!=None :
+            self.SPI.close()
+        
+        logging.debug("gpio cleanup...")
+        self.digital_write(self.RST_PIN, 1)
+        self.digital_write(self.DC_PIN, 0)   
+        self.BL_PIN.close()
+        time.sleep(0.001)
+
+
+
+'''
+if os.path.exists('/sys/bus/platform/drivers/gpiomem-bcm2835'):
+    implementation = RaspberryPi()
+
+for func in [x for x in dir(implementation) if not x.startswith('_')]:
+    setattr(sys.modules[__name__], func, getattr(implementation, func))
+'''
+
+### END OF FILE ###