diff options
Diffstat (limited to 'pytools/gpioutil')
| -rw-r--r-- | pytools/gpioutil | 35 |
1 files changed, 31 insertions, 4 deletions
diff --git a/pytools/gpioutil b/pytools/gpioutil index 6589060..d06a9a4 100644 --- a/pytools/gpioutil +++ b/pytools/gpioutil @@ -3,8 +3,9 @@ import sys import os import getopt +from glob import glob +from os.path import join import obmc_system_config as System -import obmc.system def printUsage(): @@ -25,6 +26,32 @@ sys.argv.pop(0) GPIO_SYSFS = '/sys/class/gpio/' + +def find_gpio_base(path="/sys/class/gpio/"): + pattern = "gpiochip*" + for gc in glob(join(path, pattern)): + with open(join(gc, "label")) as f: + label = f.readline().strip() + if label == "1e780000.gpio": + with open(join(gc, "base")) as f: + return int(f.readline().strip()) + # trigger a file not found exception + open(join(path, "gpiochip")) + + +GPIO_BASE = find_gpio_base() + + +def convertGpio(name): + offset = int(''.join(list(filter(str.isdigit, name)))) + port = list(filter(str.isalpha, name.upper())) + a = ord(port[-1]) - ord('A') + if len(port) > 1: + a += 26 + base = a * 8 + GPIO_BASE + return base + offset + + class Gpio: def __init__(self,gpio_num): self.gpio_num = str(gpio_num) @@ -116,9 +143,9 @@ if __name__ == '__main__': elif opt in ("-v"): value = arg elif opt in ("-p"): - gpio_name = obmc.system.convertGpio(arg) + gpio_name = convertGpio(arg) elif opt in ("-l"): - gpio_name = obmc.system.convertGpio(arg) + gpio_name = convertGpio(arg) print gpio_name exit(0) @@ -135,7 +162,7 @@ if __name__ == '__main__': if (gpio_info.has_key('gpio_num')): gpio_name = str(gpio_info['gpio_num']) else: - gpio_name = str(obmc.system.convertGpio(gpio_info['gpio_pin'])) + gpio_name = str(convertGpio(gpio_info['gpio_pin'])) print "GPIO ID: "+gpio_name+"; DIRECTION: "+direction |
