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from test.helpers.syscmd import SysCommand
import unittest
class Qi2c(unittest.TestCase):
params = None
def __init__(self, testname, testfunc, varlist):
self.params = varlist
super(Qi2c, self).__init__(testfunc)
if "busnum" in varlist:
self.__busnum = varlist["busnum"]
else:
raise Exception('busnum param inside Qi2c must be defined')
if "register" in varlist:
self.__register = varlist["register"].split("/")
else:
raise Exception('register param inside Qi2c must be defined')
self.__devices=[]
self._testMethodDoc = testname
def execute(self):
str_cmd = "i2cdetect -a -y -r {}".format(self.__busnum)
i2c_command = SysCommand("i2cdetect", str_cmd)
if i2c_command.execute() == 0:
self.__raw_out = i2c_command.getOutput()
if self.__raw_out == "":
return -1
lines=self.__raw_out.decode('ascii').splitlines()
for i in range(len(lines)):
if lines[i].count('UU'):
if lines[i].find("UU"):
self.__devices.append("0x{}{}".format((i - 1), hex(int((lines[i].find("UU") - 4) / 3)).split('x')[-1]))
for i in range(len(self.__register)):
if not(self.__register[i] in self.__devices):
self.fail("failed: device {} not found in bus i2c-{}".format(self.__register[i], self.__busnum))
else:
self.fail("failed: could not complete i2cdedtect command")
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