#
# SPDX-License-Identifier: MIT
"""Allwinner H618 Pin Names"""
-from adafruit_blinka.microcontroller.generic_linux.libgpiod_pin import Pin
import re
+from adafruit_blinka.microcontroller.generic_linux.libgpiod_pin import Pin
+
def find_gpiochip_number(target_label):
+ """Get correct gpiochip number, legacy kernel and mainline kernel are different"""
try:
- with open('/sys/kernel/debug/gpio', 'r') as f:
+ with open("/sys/kernel/debug/gpio", "r") as f:
lines = f.readlines()
except FileNotFoundError:
print("The file /sys/kernel/debug/gpio does not exist.")
gpiochip_number = None
for line in lines:
if target_label in line:
- match = re.search(r'gpiochip(\d+)', line)
+ match = re.search(r"gpiochip(\d+)", line)
if match:
gpiochip_number = match.group(1)
break
return gpiochip_number
+
if find_gpiochip_number("300b000.pinctrl"):
__chip_num = 1
else:
PG18 = Pin((__chip_num, 210))
TWI3_SDA = PG18
PG19 = Pin((__chip_num, 211))
+PWM1 = PG19
PH0 = Pin((__chip_num, 224))
PH1 = Pin((__chip_num, 225))
UART3_RX = PI10
PI11 = Pin((__chip_num, 267))
PI12 = Pin((__chip_num, 268))
+PWM2 = PI12
PI13 = Pin((__chip_num, 269))
UART4_TX = PI13
PI14 = Pin((__chip_num, 270))
(4, UART4_TX, UART4_RX),
(5, UART5_TX, UART5_RX),
)
+
+# SysFS pwm outputs, pwm channel and pin in first tuple
+pwmOuts = [
+ ((0, 1), PWM1),
+ ((0, 2), PWM2),
+]