# /***************************************************************************** # * | File : epdconfig.py # * | Author : Waveshare team # * | Function : Hardware underlying interface # * | Info : # *---------------- # * | This version: V1.2 # * | Date : 2022-10-29 # * | 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 logging import sys import time import subprocess logger = logging.getLogger(__name__) class RaspberryPi: # Pin definition RST_PIN = 17 DC_PIN = 25 CS_PIN = 8 BUSY_PIN = 24 PWR_PIN = 18 def __init__(self): import spidev import gpiozero self.SPI = spidev.SpiDev() self.GPIO_RST_PIN = gpiozero.LED(self.RST_PIN) self.GPIO_DC_PIN = gpiozero.LED(self.DC_PIN) # self.GPIO_CS_PIN = gpiozero.LED(self.CS_PIN) self.GPIO_PWR_PIN = gpiozero.LED(self.PWR_PIN) self.GPIO_BUSY_PIN = gpiozero.Button(self.BUSY_PIN, pull_up = False) def digital_write(self, pin, value): if pin == self.RST_PIN: if value: self.GPIO_RST_PIN.on() else: self.GPIO_RST_PIN.off() elif pin == self.DC_PIN: if value: self.GPIO_DC_PIN.on() else: self.GPIO_DC_PIN.off() # elif pin == self.CS_PIN: # if value: # self.GPIO_CS_PIN.on() # else: # self.GPIO_CS_PIN.off() elif pin == self.PWR_PIN: if value: self.GPIO_PWR_PIN.on() else: self.GPIO_PWR_PIN.off() def digital_read(self, pin): if pin == self.BUSY_PIN: return self.GPIO_BUSY_PIN.value elif pin == self.RST_PIN: return self.RST_PIN.value elif pin == self.DC_PIN: return self.DC_PIN.value # elif pin == self.CS_PIN: # return self.CS_PIN.value elif pin == self.PWR_PIN: return self.PWR_PIN.value def delay_ms(self, delaytime): time.sleep(delaytime / 1000.0) def spi_writebyte(self, data): self.SPI.writebytes(data) def spi_writebyte2(self, data): self.SPI.writebytes2(data) def module_init(self): self.GPIO_PWR_PIN.on() # SPI device, bus = 0, device = 0 self.SPI.open(0, 0) self.SPI.max_speed_hz = 4000000 self.SPI.mode = 0b00 return 0 def module_exit(self, cleanup=False): logger.debug("spi end") self.SPI.close() self.GPIO_RST_PIN.off() self.GPIO_DC_PIN.off() self.GPIO_PWR_PIN.off() logger.debug("close 5V, Module enters 0 power consumption ...") if cleanup: self.GPIO_RST_PIN.close() self.GPIO_DC_PIN.close() # self.GPIO_CS_PIN.close() self.GPIO_PWR_PIN.close() self.GPIO_BUSY_PIN.close() class JetsonNano: # Pin definition RST_PIN = 17 DC_PIN = 25 CS_PIN = 8 BUSY_PIN = 24 PWR_PIN = 18 def __init__(self): import ctypes find_dirs = [ os.path.dirname(os.path.realpath(__file__)), '/usr/local/lib', '/usr/lib', ] self.SPI = None for find_dir in find_dirs: so_filename = os.path.join(find_dir, 'sysfs_software_spi.so') if os.path.exists(so_filename): self.SPI = ctypes.cdll.LoadLibrary(so_filename) break if self.SPI is None: raise RuntimeError('Cannot find sysfs_software_spi.so') import Jetson.GPIO self.GPIO = Jetson.GPIO def digital_write(self, pin, value): self.GPIO.output(pin, value) def digital_read(self, pin): return self.GPIO.input(self.BUSY_PIN) def delay_ms(self, delaytime): time.sleep(delaytime / 1000.0) def spi_writebyte(self, data): self.SPI.SYSFS_software_spi_transfer(data[0]) def spi_writebyte2(self, data): for i in range(len(data)): self.SPI.SYSFS_software_spi_transfer(data[i]) def module_init(self): self.GPIO.setmode(self.GPIO.BCM) self.GPIO.setwarnings(False) self.GPIO.setup(self.RST_PIN, self.GPIO.OUT) self.GPIO.setup(self.DC_PIN, self.GPIO.OUT) self.GPIO.setup(self.CS_PIN, self.GPIO.OUT) self.GPIO.setup(self.PWR_PIN, self.GPIO.OUT) self.GPIO.setup(self.BUSY_PIN, self.GPIO.IN) self.GPIO.output(self.PWR_PIN, 1) self.SPI.SYSFS_software_spi_begin() return 0 def module_exit(self): logger.debug("spi end") self.SPI.SYSFS_software_spi_end() logger.debug("close 5V, Module enters 0 power consumption ...") self.GPIO.output(self.RST_PIN, 0) self.GPIO.output(self.DC_PIN, 0) self.GPIO.output(self.PWR_PIN, 0) self.GPIO.cleanup([self.RST_PIN, self.DC_PIN, self.CS_PIN, self.BUSY_PIN, self.PWR_PIN]) class SunriseX3: # Pin definition RST_PIN = 17 DC_PIN = 25 CS_PIN = 8 BUSY_PIN = 24 PWR_PIN = 18 Flag = 0 def __init__(self): import spidev import Hobot.GPIO self.GPIO = Hobot.GPIO self.SPI = spidev.SpiDev() def digital_write(self, pin, value): self.GPIO.output(pin, value) def digital_read(self, pin): return self.GPIO.input(pin) def delay_ms(self, delaytime): time.sleep(delaytime / 1000.0) def spi_writebyte(self, data): self.SPI.writebytes(data) def spi_writebyte2(self, data): # for i in range(len(data)): # self.SPI.writebytes([data[i]]) self.SPI.xfer3(data) def module_init(self): if self.Flag == 0: self.Flag = 1 self.GPIO.setmode(self.GPIO.BCM) self.GPIO.setwarnings(False) self.GPIO.setup(self.RST_PIN, self.GPIO.OUT) self.GPIO.setup(self.DC_PIN, self.GPIO.OUT) self.GPIO.setup(self.CS_PIN, self.GPIO.OUT) self.GPIO.setup(self.PWR_PIN, self.GPIO.OUT) self.GPIO.setup(self.BUSY_PIN, self.GPIO.IN) self.GPIO.output(self.PWR_PIN, 1) # SPI device, bus = 0, device = 0 self.SPI.open(2, 0) self.SPI.max_speed_hz = 4000000 self.SPI.mode = 0b00 return 0 else: return 0 def module_exit(self): logger.debug("spi end") self.SPI.close() logger.debug("close 5V, Module enters 0 power consumption ...") self.Flag = 0 self.GPIO.output(self.RST_PIN, 0) self.GPIO.output(self.DC_PIN, 0) self.GPIO.output(self.PWR_PIN, 0) self.GPIO.cleanup([self.RST_PIN, self.DC_PIN, self.CS_PIN, self.BUSY_PIN], self.PWR_PIN) if sys.version_info[0] == 2: process = subprocess.Popen("cat /proc/cpuinfo | grep Raspberry", shell=True, stdout=subprocess.PIPE) else: process = subprocess.Popen("cat /proc/cpuinfo | grep Raspberry", shell=True, stdout=subprocess.PIPE, text=True) output, _ = process.communicate() if sys.version_info[0] == 2: output = output.decode(sys.stdout.encoding) if "Raspberry" in output: implementation = RaspberryPi() elif os.path.exists('/sys/bus/platform/drivers/gpio-x3'): implementation = SunriseX3() else: implementation = JetsonNano() for func in [x for x in dir(implementation) if not x.startswith('_')]: setattr(sys.modules[__name__], func, getattr(implementation, func)) ### END OF FILE ###