Add below test cases for i2c commands:
i2c_bus - To show i2c bus info,
i2c_dev - To set or show the current bus,
i2c_probe - To probe the i2c device,
i2c_eeprom - To test i2c eeprom device,
i2c_probe_all_buses - To list down all the buses and probes it
Signed-off-by: Love Kumar <love.ku...@amd.com>
---
test/py/tests/test_i2c.py | 107 ++++++++++++++++++++++++++++++++++++++
1 file changed, 107 insertions(+)
create mode 100644 test/py/tests/test_i2c.py
diff --git a/test/py/tests/test_i2c.py b/test/py/tests/test_i2c.py
new file mode 100644
index 000000000000..d4f533a3ba5e
--- /dev/null
+++ b/test/py/tests/test_i2c.py
@@ -0,0 +1,107 @@
+# SPDX-License-Identifier: GPL-2.0
+# (C) Copyright 2023, Advanced Micro Devices, Inc.
+
+import pytest
+import random
+import re
+
+"""
+Note: This test doesn't rely on boardenv_* configuration value but they can
+change test behavior.
+
+For example:
+
+# Setup env__i2c_device_test_skip to True if tests with i2c devices should be
+# skipped. For example: Missing QEMU model or broken i2c device
+env__i2c_device_test_skip = True
+
+# Setup env__i2c_eeprom_device_test to set the i2c bus number and eeprom
+# address for i2c_eeprom test case. Test will be skipped if
+# env__i2c_eeprom_device_test is not set
+env__i2c_eeprom_device_test = {
+ "bus": 3,
+ "eeprom_addr": 0x54,
+}
+
+# Setup env__i2c_device_test to provide the i2c bus list to test against it
+# for i2c_probe_all_buses case instead of probing all the buses available. If
+# it is not set, it list down all the buses and probes it
+env__i2c_device_test = {
+ "bus_list": [0, 2, 5, 12, 16, 18]
+}
+"""
+
+@pytest.mark.buildconfigspec("cmd_i2c")
+def test_i2c_bus(u_boot_console):
+ if u_boot_console.config.env.get("env__i2c_device_test_skip", False):
+ pytest.skip("I2C device test is not enabled!")
+ expected_response = "Bus"
+ response = u_boot_console.run_command("i2c bus")
+ assert expected_response in response
+
+@pytest.mark.buildconfigspec("cmd_i2c")
+def test_i2c_dev(u_boot_console):
+ if u_boot_console.config.env.get("env__i2c_device_test_skip", False):
+ pytest.skip("I2C device test is not enabled!")
+ expected_response = "Current bus"
+ response = u_boot_console.run_command("i2c dev")
+ assert expected_response in response
+
+@pytest.mark.buildconfigspec("cmd_i2c")
+def test_i2c_probe(u_boot_console):
+ if u_boot_console.config.env.get("env__i2c_device_test_skip", False):
+ pytest.skip("I2C device test is not enabled!")
+ expected_response = "Setting bus to 0"
+ response = u_boot_console.run_command("i2c dev 0")
+ assert expected_response in response
+ expected_response = "Valid chip addresses:"
+ response = u_boot_console.run_command("i2c probe")
+ assert expected_response in response
+
+@pytest.mark.buildconfigspec("cmd_i2c")
+def test_i2c_eeprom(u_boot_console):
+ f = u_boot_console.config.env.get("env__i2c_eeprom_device_test", None)
+ if not f:
+ pytest.skip("No I2C eeprom to test!")
+
+ bus = f.get("bus", 0)
+ if bus < 0:
+ pytest.fail("No bus specified via env__i2c_eeprom_device_test!")
+
+ addr = f.get("eeprom_addr", -1)
+ if addr < 0:
+ pytest.fail("No eeprom address specified via
env__i2c_eeprom_device_test!")
+
+ # Enable i2c mux bridge
+ u_boot_console.run_command("i2c dev %x" % bus)
+ u_boot_console.run_command("i2c probe")
+ val_int = random.randint(0, 255)
+ value = format(val_int, "02x")
+ u_boot_console.run_command("i2c mw %x 0 %x 5" % (addr, val_int))
+ expected_response = f"0000: {value} {value} {value} {value} {value} "
+ response = u_boot_console.run_command("i2c md %x 0 5" % addr)
+ assert expected_response in response
+
+@pytest.mark.buildconfigspec("cmd_i2c")
+def test_i2c_probe_all_buses(u_boot_console):
+ if u_boot_console.config.env.get("env__i2c_device_test_skip", False):
+ pytest.skip("I2C device test is not enabled!")
+ expected_response = "Bus"
+ response = u_boot_console.run_command("i2c bus")
+ assert expected_response in response
+
+ # Get all the bus list
+ f = u_boot_console.config.env.get("env__i2c_device_test", None)
+ if f:
+ bus_list = f.get("bus_list")
+ else:
+ buses = re.findall("Bus (.+?):", response)
+ bus_list = [int(x) for x in buses]
+
+ for dev in bus_list:
+ expected_response = f"Setting bus to {dev}"
+ response = u_boot_console.run_command(f"i2c dev {dev}")
+ assert expected_response in response
+ expected_response = "Valid chip addresses:"
+ response = u_boot_console.run_command("i2c probe")
+ assert expected_response in response
--
2.25.1
