Verify the ADC128D818 on the Anacapa R-PDB (i2c8 mux channel 0): two channels are driven with distinct voltages and each is checked to be reported back independently through the kernel hwmon interface, and the channel 0 limit registers are validated.
Signed-off-by: Emmanuel Blot <[email protected]> --- tests/functional/arm/test_aspeed_anacapa.py | 69 ++++++++++++++++++++++++++--- 1 file changed, 63 insertions(+), 6 deletions(-) diff --git a/tests/functional/arm/test_aspeed_anacapa.py b/tests/functional/arm/test_aspeed_anacapa.py index 2b72e46b0e..49fab7ad09 100644 --- a/tests/functional/arm/test_aspeed_anacapa.py +++ b/tests/functional/arm/test_aspeed_anacapa.py @@ -2,24 +2,81 @@ # # Functional test that boots the ASPEED machines # +# Copyright (c) 2026 Meta Platforms, Inc. and affiliates. +# # SPDX-License-Identifier: GPL-2.0-or-later +import re +import time + from qemu_test import Asset +from qemu_test import exec_command_and_wait_for_pattern from aspeed import FacebookAspeedTest class AnacapaMachine(FacebookAspeedTest): ASSET_ANACAPA_FLASH = Asset( - 'https://github.com/legoater/qemu-aspeed-boot/raw/c5f585f9f57843c0dc95e3865a57d92ec39cbb0b/images/anacapa-bmc/openbmc-20260616025349/obmc-phosphor-image-anacapa-20260616025349.static.mtd.xz', - 'de3841fb6ed3085aec6424358ee6efc4b8ee85688361e5aa1987fd1acb7d3fb4') + "https://github.com/legoater/qemu-aspeed-boot/raw/c5f585f9f57843c0dc95e3865a57d92ec39cbb0b/images/anacapa-bmc/openbmc-20260616025349/obmc-phosphor-image-anacapa-20260616025349.static.mtd.xz";, + "de3841fb6ed3085aec6424358ee6efc4b8ee85688361e5aa1987fd1acb7d3fb4", + ) + + ADC128D818_QOM_PATH = \ + "/machine/soc/i2c/bus[8]/aspeed.i2c.bus.8/0x72/i2c.0/0x1f" + ADC128D818_MUX_CHANNEL = "/sys/bus/i2c/devices/8-0072/channel-0" + PROMPT = "root@anacapa:~#" def test_arm_ast2600_anacapa_openbmc(self): image_path = self.uncompress(self.ASSET_ANACAPA_FLASH) - self.do_test_arm_aspeed_openbmc('anacapa-bmc', image=image_path, - uboot='2019.04', cpu_id='0xf00', - soc='AST2600 rev A3') + self.do_test_arm_aspeed_openbmc( + "anacapa-bmc", + image=image_path, + uboot="2019.04", + cpu_id="0xf00", + soc="AST2600 rev A3", + ) -if __name__ == '__main__': + exec_command_and_wait_for_pattern(self, "root", "Password:") + exec_command_and_wait_for_pattern(self, "0penBmc", "#") + + self.adc_hwmon = self.resolve_adc128d818_hwmon() + self.assertIn(b"adc128d818", self.read_adc128d818("name")) + + adc = self.ADC128D818_QOM_PATH + for ch0_mv, ch1_mv in ((108, 2000), (1280, 500)): + self.vm.cmd("qom-set", path=adc, property="ain0", value=ch0_mv) + self.vm.cmd("qom-set", path=adc, property="ain1", value=ch1_mv) + self.wait_adc128d818_value("in0_input", ch0_mv) + self.wait_adc128d818_value("in1_input", ch1_mv) + + self.assertIn(b"2551", self.read_adc128d818("in0_max")) + self.assertRegex(self.read_adc128d818("in0_min"), rb"(?m)^0\r*$") + + def resolve_adc128d818_hwmon(self): + out = self.read_adc128d818_console( + f"basename $(readlink {self.ADC128D818_MUX_CHANNEL})" + ) + match = re.search(rb"i2c-(\d+)", out) + self.assertIsNotNone(match, "could not resolve ADC128D818 i2c bus") + bus = int(match.group(1)) + return f"/sys/bus/i2c/devices/{bus}-001f/hwmon/hwmon*" + + def read_adc128d818_console(self, command): + return exec_command_and_wait_for_pattern(self, command, self.PROMPT) + + def read_adc128d818(self, attr): + return self.read_adc128d818_console(f"cat {self.adc_hwmon}/{attr}") + + def wait_adc128d818_value(self, attr, expected, timeout=20): + needle = str(expected).encode() + deadline = time.monotonic() + timeout + while time.monotonic() < deadline: + if needle in self.read_adc128d818(attr): + return + time.sleep(2) + self.fail(f"{attr} did not reach {expected}") + + +if __name__ == "__main__": FacebookAspeedTest.main() -- 2.50.1
