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Add lib/waveshare_epd/epdconfig.py

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Zakary Timson 2024-07-26 21:58:00 -04:00
parent 2f24b99d22
commit 46a5768bbe
1 changed files with 244 additions and 0 deletions
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lib/waveshare_epd/epdconfig.py Normal file
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import os
import logging
import sys
import time
import subprocess
import RPi.GPIO as GPIO
from ctypes import *
logger = logging.getLogger(__name__)
class RaspberryPi:
# Pin definition
RST_PIN = 17
DC_PIN = 25
CS_PIN = 8
BUSY_PIN = 24
PWR_PIN = 18
MOSI_PIN = 10
SCLK_PIN = 11
def __init__(self):
import spidev
self.SPI = spidev.SpiDev()
GPIO.setmode(GPIO.BCM)
GPIO.setwarnings(False)
GPIO.setup(self.RST_PIN, GPIO.OUT)
GPIO.setup(self.DC_PIN, GPIO.OUT)
GPIO.setup(self.CS_PIN, GPIO.OUT) # Uncomment this if you are using CS_PIN
GPIO.setup(self.PWR_PIN, GPIO.OUT)
GPIO.setup(self.BUSY_PIN, GPIO.IN)
def digital_write(self, pin, value):
GPIO.output(pin, value)
def digital_read(self, pin):
return 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):
self.SPI.writebytes2(data)
def module_init(self, cleanup=False):
self.digital_write(self.PWR_PIN, 1)
if cleanup:
find_dirs = [
os.path.dirname(os.path.realpath(__file__)),
'/usr/local/lib',
'/usr/lib',
]
self.DEV_SPI = None
for find_dir in find_dirs:
val = int(os.popen('getconf LONG_BIT').read())
logging.debug("System is %d bit" % val)
if val == 64:
so_filename = os.path.join(find_dir, 'DEV_Config_64.so')
else:
so_filename = os.path.join(find_dir, 'DEV_Config_32.so')
if os.path.exists(so_filename):
self.DEV_SPI = CDLL(so_filename)
break
if self.DEV_SPI is None:
raise RuntimeError('Cannot find DEV_Config.so')
self.DEV_SPI.DEV_Module_Init()
else:
# 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.digital_write(self.RST_PIN, 0)
self.digital_write(self.DC_PIN, 0)
self.digital_write(self.PWR_PIN, 0)
logger.debug("close 5V, Module enters 0 power consumption ...")
if cleanup:
GPIO.cleanup([self.RST_PIN, self.DC_PIN, self.PWR_PIN, self.BUSY_PIN])
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):
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 ###