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#!/usr/bin/env python3
#
# Copyright 2021 Ettus Research, a National Instruments Company
#
# SPDX-License-Identifier: GPL-3.0-or-later
#
"""
TLV eeprom tests
"""
import os
import struct
from base_tests import TestBase
import usrp_mpm.eeprom
import usrp_mpm.tlv_eeprom
from usrp_mpm.eeprom import MboardEEPROM
from usrp_mpm.periph_manager.base import PeriphManagerBase
def get_eeprom_filename(name):
"""
location of EEPROM test file relative to test
"""
return os.path.join(os.path.dirname(__file__), "eeprom_tests", name)
class TestEeprom(TestBase):
"""
Tests EEPROM readers of different versions. Each reader is expected to
return a dictionary with values read by the reader. The tests pass
the dictionary to _check_data which checks equality of all data as well as
that both dicts contain the same keys.
"""
# tag map for tlv eeprom tests
tagmap = {
# typical board map
0x42: usrp_mpm.tlv_eeprom.NamedStruct(
'< H H H 7s 1x', ['pid', 'rev', 'rev_compat', 'serial']),
# tow additional maps to test unpack of multiple maps in a single eeprom
0x47: usrp_mpm.tlv_eeprom.NamedStruct(
'< B B H', ['byte1', 'byte2', 'short']),
0x11: usrp_mpm.tlv_eeprom.NamedStruct(
'< L', ['long'])
}
magic = 0xCEF10F00
def _check_data(self, data, **kwargs):
#generic data check with kwargs containing key-value pairs
self.assertEqual(len(kwargs), len(data),
"test does not check all items "
"(Expected: %s Read: %s)" %
(kwargs.keys(), data.keys()))
for key, value in kwargs.items():
self.assertTrue(key in data, "data does not contain %s" % key)
self.assertEqual(data[key], value,
"%s does not match. Expected: %s, Received: %s" %
(key, value, data[key]))
def test_eeprom_legacy_minsize(self):
"""
check that empty eeprom files raises struct error
"""
self.assertRaises(struct.error,
usrp_mpm.eeprom.read_eeprom,
get_eeprom_filename("empty.eeprom"),
0,
MboardEEPROM.eeprom_header_format,
MboardEEPROM.eeprom_header_keys,
PeriphManagerBase.dboard_eeprom_magic)
def test_eeprom_mboard_v1(self):
"""
read valid v1 map
"""
keys = MboardEEPROM.eeprom_header_keys
(data, _) = usrp_mpm.eeprom.read_eeprom(
get_eeprom_filename("legacy_mboard_v1.eeprom"),
0,
MboardEEPROM.eeprom_header_format,
keys,
PeriphManagerBase.mboard_eeprom_magic)
self._check_data(
data,
magic=PeriphManagerBase.mboard_eeprom_magic,
eeprom_version=1,
mcu_flags=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00',
pid=0xDEAD,
rev=0xABCD,
serial=b"mbrd_v1",
mac_addresses=b'\x01\x02\x03\x04\x05\x06\x00\x00'
b'\x0f\x0e\r\x0c\x0b\n\x00\x00\x11'
b'"3DUf\x00\x00',
CRC=0x02CC50AA)
def test_eeprom_mboard_v2(self):
"""
read valid v2 map
"""
(data, _) = usrp_mpm.eeprom.read_eeprom(
get_eeprom_filename("legacy_mboard_v2.eeprom"),
0,
MboardEEPROM.eeprom_header_format,
MboardEEPROM.eeprom_header_keys,
PeriphManagerBase.mboard_eeprom_magic)
self._check_data(
data,
magic=PeriphManagerBase.mboard_eeprom_magic,
eeprom_version=2,
mcu_flags=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00',
pid=0xDEAD,
rev=0xBEEF,
serial=b"mbrd_v2",
mac_eth0=b'\x01\x02\x03\x04\x05\x06',
dt_compat=0xD1C0,
mac_eth1=b'\x0f\x0e\r\x0c\x0b\n',
ec_compat=0xECC0,
mac_eth2=b'\x11"3DUf',
CRC=0x42097DAC)
def test_eeprom_mboard_v3(self):
"""
read valid v3 map
"""
(data, _) = usrp_mpm.eeprom.read_eeprom(
get_eeprom_filename("legacy_mboard_v3.eeprom"),
0,
MboardEEPROM.eeprom_header_format,
MboardEEPROM.eeprom_header_keys,
PeriphManagerBase.mboard_eeprom_magic)
self._check_data(
data,
magic=PeriphManagerBase.mboard_eeprom_magic,
eeprom_version=3,
mcu_flags=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00',
pid=0xDEAD,
rev=0xBEEF,
serial=b"mbrd_v3",
mac_eth0=b'\x01\x02\x03\x04\x05\x06',
dt_compat=0xD1C0,
mac_eth1=b'\x0f\x0e\r\x0c\x0b\n',
ec_compat=0xECC0,
mac_eth2=b'\x11"3DUf',
rev_compat=0x4EC0,
CRC=0x2E52CB41)
def test_eeprom_tlv_single(self):
"""
read eeprom with tag map
"""
(data, _) = usrp_mpm.tlv_eeprom.read_eeprom(
get_eeprom_filename("tlv_single.eeprom"),
self.tagmap,
self.magic)
self._check_data(
data,
rev=2,
rev_compat=2,
pid=0x410,
serial=b'3196D29')
def test_eeprom_tlv_multiple(self):
"""
read eeprom with multiple tag maps
"""
(data, _) = usrp_mpm.tlv_eeprom.read_eeprom(
get_eeprom_filename("tlv_multiple.eeprom"),
self.tagmap,
self.magic)
self._check_data(
data,
rev=2,
rev_compat=2,
pid=0x410,
serial=b'3196D29',
byte1=0x08,
byte2=0x15,
short=0xEFBE,
long=0xBEBAFECA)
def test_eeprom_tlv_unknown_tagmap(self):
"""
Check that reading unknown tag map ID leads to empty data map instead
of runtime error
"""
(data, _) = usrp_mpm.tlv_eeprom.read_eeprom(
get_eeprom_filename("tlv_unknown_tagmap.eeprom"),
self.tagmap,
self.magic)
self._check_data(data)
def test_eeprom_tlv_unknown_wrong_maplen(self):
"""
Check that invalid map len results in TypeError
"""
self.assertRaises(TypeError,
usrp_mpm.tlv_eeprom.read_eeprom,
get_eeprom_filename("tlv_wrong_maplen.eeprom"),
self.tagmap,
self.magic)
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