Python OpTestHost.host_get_list_of_i2c_buses方法代码示例

# 需要导入模块: from common.OpTestHost import OpTestHost [as 别名]
# 或者: from common.OpTestHost.OpTestHost import host_get_list_of_i2c_buses [as 别名]
class OpTestI2Cdriver():
    ## Initialize this object
    #  @param i_bmcIP The IP address of the BMC
    #  @param i_bmcUser The userid to log into the BMC with
    #  @param i_bmcPasswd The password of the userid to log into the BMC with
    #  @param i_bmcUserIpmi The userid to issue the BMC IPMI commands with
    #  @param i_bmcPasswdIpmi The password of BMC IPMI userid
    #  @param i_ffdcDir Optional param to indicate where to write FFDC
    #
    # "Only required for inband tests" else Default = None
    # @param i_hostIP The IP address of the HOST
    # @param i_hostuser The userid to log into the HOST
    # @param i_hostPasswd The password of the userid to log into the HOST with
    #
    def __init__(self, i_bmcIP, i_bmcUser, i_bmcPasswd,
                 i_bmcUserIpmi, i_bmcPasswdIpmi, i_ffdcDir=None, i_hostip=None,
                 i_hostuser=None, i_hostPasswd=None):
        self.cv_BMC = OpTestBMC(i_bmcIP, i_bmcUser, i_bmcPasswd, i_ffdcDir)
        self.cv_IPMI = OpTestIPMI(i_bmcIP, i_bmcUserIpmi, i_bmcPasswdIpmi,
                                  i_ffdcDir)
        self.cv_HOST = OpTestHost(i_hostip, i_hostuser, i_hostPasswd, i_bmcIP)
        self.util = OpTestUtil()

    ##
    # @brief  This function has following test steps
    #         1. Getting host information(OS and kernel info)
    #         2. Checking the required utilites are present on host or not
    #         3. Loading the necessary modules to test I2C device driver functionalites
    #            (i2c_dev, i2c_opal and at24)
    #         4. Getting the list of i2c buses
    #         5. Querying the i2c bus for devices
    #         3. Getting the list of i2c buses and eeprom chip addresses
    #         4. Accessing the registers visible through the i2cbus using i2cdump utility
    #         5. Listing the i2c adapter conetents and i2c bus entries to make sure sysfs entries
    #            created for each bus.
    #         6. Testing i2cget functionality for limited samples
    #            Avoiding i2cset functionality, it may damage the system.
    #
    # @return BMC_CONST.FW_SUCCESS-success or raise OpTestError-fail
    #
    def testI2Cdriver(self):

        # Get OS level
        self.cv_HOST.host_get_OS_Level()

        # make sure install "i2c-tools" package in-order to run the test

        # Check whether i2cdump, i2cdetect and hexdump commands are available on host
        self.cv_HOST.host_check_command("i2cdump")
        self.cv_HOST.host_check_command("i2cdetect")
        self.cv_HOST.host_check_command("hexdump")
        self.cv_HOST.host_check_command("i2cget")
        self.cv_HOST.host_check_command("i2cset")

        # Get Kernel Version
        l_kernel = self.cv_HOST.host_get_kernel_version()

        # loading i2c_opal module based on config option
        l_config = "CONFIG_I2C_OPAL"
        l_module = "i2c_opal"
        self.cv_HOST.host_load_module_based_on_config(l_kernel, l_config, l_module)

        # loading i2c_dev module based on config option
        l_config = "CONFIG_I2C_CHARDEV"
        l_module = "i2c_dev"
        self.cv_HOST.host_load_module_based_on_config(l_kernel, l_config, l_module)

        # loading at24 module based on config option
        l_config = "CONFIG_EEPROM_AT24"
        l_module = "at24"
        self.cv_HOST.host_load_module_based_on_config(l_kernel, l_config, l_module)

        # Get information of EEPROM chips
        self.cv_HOST.host_get_info_of_eeprom_chips()

        # Get list of i2c buses available on host,
        # l_list=["0","1"....]
        # l_list1=["i2c-0","i2c-1","i2c-2"....]
        l_list, l_list1 = self.cv_HOST.host_get_list_of_i2c_buses()

        # Scanning i2c bus for devices attached to it.
        for l_bus in l_list:
            self.query_i2c_bus(l_bus)

        # Get list of pairs of i2c bus and EEPROM device addresses in the host
        l_chips = self.cv_HOST.host_get_list_of_eeprom_chips()
        for l_args in l_chips:
            # Accessing the registers visible through the i2cbus using i2cdump utility
            # l_args format: "0 0x51","1 0x53",.....etc
            self.i2c_dump(l_args)

        # list i2c adapter conetents
        l_res = self.cv_HOST.host_run_command("ls -l /sys/class/i2c-adapter; echo $?")
        l_res = l_res.splitlines()
        if int(l_res[-1]) == 0:
            pass
        else:
            l_msg = "listing i2c adapter contents through the sysfs entry failed"
            print l_msg
            raise OpTestError(l_msg)
#.........这里部分代码省略.........