1ef5129fde
- Add support for variable width I2S (via XUA_I2S_N_BITS) - Add support for variable width TDM (again via XUD_I2S_N_BITS when XUA_PCM_FORMAT=XUA_PCM_FORMAT_TDM) - Includes support for xcore as I2S/TDM master and slave - Add testing of the the above to test_i2s_loopback - Rationalised test config building in test_i2s_loopback - Documentation updated
97 lines
3.1 KiB
Python
97 lines
3.1 KiB
Python
# Copyright 2018-2023 XMOS LIMITED.
|
|
# This Software is subject to the terms of the XMOS Public Licence: Version 1.
|
|
import pytest
|
|
import Pyxsim
|
|
from Pyxsim import testers
|
|
import os
|
|
import sys
|
|
|
|
|
|
@pytest.fixture()
|
|
def test_file(request):
|
|
return str(request.node.fspath)
|
|
|
|
def do_test(
|
|
pcm_format, i2s_role, channel_count, sample_rate, word_length, test_file, options, capfd
|
|
):
|
|
|
|
build_options = []
|
|
output = []
|
|
testname, _ = os.path.splitext(os.path.basename(test_file))
|
|
|
|
build_options += [f"pcm_format={pcm_format}"]
|
|
build_options += [f"i2s_role={i2s_role}"]
|
|
build_options += [f"channel_count={channel_count}"]
|
|
build_options += [f"sample_rate={sample_rate}"]
|
|
build_options += [f"word_length={word_length}"]
|
|
|
|
desc = f"simulation_{pcm_format}_{i2s_role}_{channel_count}in_{channel_count}out_{sample_rate}_{word_length}bit"
|
|
binary = f"{testname}/bin/{desc}/{testname}_{desc}.xe"
|
|
|
|
tester = testers.ComparisonTester(open("pass.expect"))
|
|
|
|
loopback_args = (
|
|
"-port tile[0] XS1_PORT_1M 1 0 -port tile[0] XS1_PORT_1I 1 0 "
|
|
+ "-port tile[0] XS1_PORT_1N 1 0 -port tile[0] XS1_PORT_1J 1 0 "
|
|
+ "-port tile[0] XS1_PORT_1O 1 0 -port tile[0] XS1_PORT_1K 1 0 "
|
|
+ "-port tile[0] XS1_PORT_1P 1 0 -port tile[0] XS1_PORT_1L 1 0 "
|
|
+ "-port tile[0] XS1_PORT_1A 1 0 -port tile[0] XS1_PORT_1F 1 0 "
|
|
)
|
|
if i2s_role == "slave":
|
|
loopback_args += (
|
|
"-port tile[0] XS1_PORT_1B 1 0 -port tile[0] XS1_PORT_1H 1 0 " # bclk
|
|
)
|
|
loopback_args += (
|
|
"-port tile[0] XS1_PORT_1C 1 0 -port tile[0] XS1_PORT_1G 1 0 " # lrclk
|
|
)
|
|
|
|
max_cycles = 1500000 # enough to reach the 10 skip + 100 test in sim at 48kHz
|
|
|
|
simargs = [
|
|
"--max-cycles",
|
|
str(max_cycles),
|
|
"--plugin",
|
|
"LoopbackPort.dll",
|
|
loopback_args,
|
|
]
|
|
|
|
result = Pyxsim.run_on_simulator(
|
|
binary,
|
|
build_options=build_options,
|
|
tester=tester,
|
|
simargs=simargs,
|
|
capfd=capfd,
|
|
instTracing=options.enabletracing,
|
|
vcdTracing=options.enablevcdtracing,
|
|
)
|
|
|
|
return result
|
|
|
|
|
|
@pytest.mark.parametrize("i2s_role", ["master", "slave"])
|
|
@pytest.mark.parametrize("pcm_format", ["i2s", "tdm"])
|
|
@pytest.mark.parametrize("channel_count", [2, 8, 16])
|
|
@pytest.mark.parametrize("word_length", [16, 32]) # I2S world length in bits
|
|
@pytest.mark.parametrize("sample_rate", [48000, 96000, 192000])
|
|
def test_i2s_loopback(
|
|
i2s_role, pcm_format, channel_count, sample_rate, word_length, test_file, options, capfd
|
|
):
|
|
|
|
if pcm_format == "i2s" and channel_count == 16:
|
|
pytest.skip("Invalid parameter combination")
|
|
|
|
if pcm_format == "i2s" and sample_rate not in [48000, 192000]:
|
|
pytest.skip("Invalid parameter combination")
|
|
|
|
if pcm_format == "tdm" and channel_count == 2:
|
|
pytest.skip("Invalid parameter combination")
|
|
|
|
if pcm_format == "tdm" and sample_rate == 192000:
|
|
pytest.skip("Invalid parameter combination")
|
|
|
|
result = do_test(
|
|
pcm_format, i2s_role, channel_count, sample_rate, word_length, test_file, options, capfd
|
|
)
|
|
|
|
assert result
|