[Intel-gfx] [PATCH i-g-t 3/3] tests: Introduce audio tests, starting with HDMI signal integrity
Lyude Paul
lyude at redhat.com
Mon Aug 21 15:26:33 UTC 2017
On Mon, 2017-08-21 at 18:14 +0300, Paul Kocialkowski wrote:
> Hi,
>
> On Fri, 2017-08-18 at 12:15 -0400, Lyude Paul wrote:
> > Nice job! Only one small formatting change
>
> Thanks a lot for the timely review! I only have a week and a half
> left
> at my internship, so it is much appreciated :)
>
> > On Thu, 2017-08-17 at 19:05 +0300, Paul Kocialkowski wrote:
> > > This introduces a new test for audio going through display
> > > connectors.
> > > It currently contains a single subtest for HDMI signal integrity,
> > > but
> > > other test cases will be added later on.
> > >
> > > The test setup consists in using an HDMI-VGA bridge that
> > > separates
> > > the
> > > audio out (via a 3.5 mm jack) and feeding this back to the DUT's
> > > line-in
> > > where it can be recorded by ALSA with controls correctly
> > > configured.
> > >
> > > The audio test makes use of the audio and ALSA igt libraries
> > > helpers.
> > >
> > > Signed-off-by: Paul Kocialkowski <paul.kocialkowski at linux.intel.c
> > > om>
> > > ---
> > > tests/Makefile.am | 12 ++++
> > > tests/audio.c | 170
> > > ++++++++++++++++++++++++++++++++++++++++++++++++++++++
> > > 2 files changed, 182 insertions(+)
> > > create mode 100644 tests/audio.c
> > >
> > > diff --git a/tests/Makefile.am b/tests/Makefile.am
> > > index f9d11e6c..471f3818 100644
> > > --- a/tests/Makefile.am
> > > +++ b/tests/Makefile.am
> > > @@ -20,6 +20,15 @@ TESTS_progs += \
> > > $(NULL)
> > > endif
> > >
> > > +if HAVE_ALSA
> > > +if HAVE_GSL
> > > +TESTS_progs += \
> > > + audio \
> > > + $(NULL)
> > > +endif
> > > +endif
> > > +
> > > +
> > > if BUILD_TESTS
> > > test-list.txt: Makefile.sources
> > > @echo TESTLIST > $@
> > > @@ -134,6 +143,9 @@ vc4_wait_seqno_LDADD = $(LDADD)
> > > $(DRM_VC4_LIBS)
> > > chamelium_CFLAGS = $(AM_CFLAGS) $(XMLRPC_CFLAGS)
> > > $(LIBUDEV_CFLAGS)
> > > chamelium_LDADD = $(LDADD) $(XMLRPC_LIBS) $(LIBUDEV_LIBS)
> > >
> > > +audio_CFLAGS = $(AM_CFLAGS) $(ALSA_CFLAGS)
> > > +audio_LDADD = $(LDADD) $(ALSA_LIBS)
> > > +
> > > amdgpu_amd_basic_CFLAGS = $(AM_CFLAGS) $(DRM_AMDGPU_CFLAGS)
> > > amdgpu_amd_basic_LDADD = $(LDADD) $(DRM_AMDGPU_LIBS)
> > > amdgpu_amd_cs_nop_CFLAGS = $(AM_CFLAGS) $(DRM_AMDGPU_CFLAGS)
> > > diff --git a/tests/audio.c b/tests/audio.c
> > > new file mode 100644
> > > index 00000000..7099dd99
> > > --- /dev/null
> > > +++ b/tests/audio.c
> > > @@ -0,0 +1,170 @@
> > > +/*
> > > + * Copyright © 2017 Intel Corporation
> > > + *
> > > + * Permission is hereby granted, free of charge, to any person
> > > obtaining a
> > > + * copy of this software and associated documentation files (the
> > > "Software"),
> > > + * to deal in the Software without restriction, including
> > > without
> > > limitation
> > > + * the rights to use, copy, modify, merge, publish, distribute,
> > > sublicense,
> > > + * and/or sell copies of the Software, and to permit persons to
> > > whom
> > > the
> > > + * Software is furnished to do so, subject to the following
> > > conditions:
> > > + *
> > > + * The above copyright notice and this permission notice
> > > (including
> > > the next
> > > + * paragraph) shall be included in all copies or substantial
> > > portions of the
> > > + * Software.
> > > + *
> > > + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
> > > KIND,
> > > EXPRESS OR
> > > + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> > > MERCHANTABILITY,
> > > + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO
> > > EVENT SHALL
> > > + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
> > > DAMAGES
> > > OR OTHER
> > > + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
> > > OTHERWISE,
> > > ARISING
> > > + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> > > OTHER DEALINGS
> > > + * IN THE SOFTWARE.
> > > + *
> > > + * Authors:
> > > + * Paul Kocialkowski <paul.kocialkowski at linux.intel.com>
> > > + */
> > > +
> > > +#include "config.h"
> > > +#include "igt.h"
> > > +
> > > +#define PLAYBACK_CHANNELS 2
> > > +#define PLAYBACK_FRAMES 1024
> > > +
> > > +#define CAPTURE_SAMPLE_RATE 48000
> > > +#define CAPTURE_CHANNELS 2
> > > +#define CAPTURE_DEVICE_NAME "default"
> > > +#define CAPTURE_FRAMES 2048
> >
> > Might want to fix the indenting here
>
> cat, git and my editor show them aligned, so I think this is due to
> patch formating+email.
Figured as much. Since that only leaves the printf attribute (it's not
used anywhere else, but I still think it's a good idea to have for the
day this code gets changed again) I'll just make that small change
myself and push the series. Thanks for the great work you've been
doing!
>
> > > +
> > > +#define RUN_TIMEOUT 2000
> > > +
> > > +struct test_data {
> > > + struct alsa *alsa;
> > > + struct audio_signal *signal;
> > > +
> > > + int streak;
> > > +};
> > > +
> > > +static int sampling_rates[] = {
> > > + 32000,
> > > + 44100,
> > > + 48000,
> > > + 88200,
> > > + 96000,
> > > + 176400,
> > > + 192000,
> > > +};
> > > +
> > > +static int sampling_rates_count = sizeof(sampling_rates) /
> > > sizeof(int);
> > > +
> > > +static int test_frequencies[] = {
> > > + 300,
> > > + 600,
> > > + 1200,
> > > + 80000,
> > > + 10000,
> > > +};
> > > +
> > > +static int test_frequencies_count = sizeof(test_frequencies) /
> > > sizeof(int);
> > > +
> > > +static int output_callback(void *data, short *buffer, int
> > > frames)
> > > +{
> > > + struct test_data *test_data = (struct test_data *) data;
> > > +
> > > + audio_signal_fill(test_data->signal, buffer, frames);
> > > +
> > > + return 0;
> > > +}
> > > +
> > > +static int input_callback(void *data, short *buffer, int frames)
> > > +{
> > > + struct test_data *test_data = (struct test_data *) data;
> > > + bool detect;
> > > +
> > > + detect = audio_signal_detect(test_data->signal,
> > > CAPTURE_CHANNELS,
> > > + CAPTURE_SAMPLE_RATE,
> > > buffer,
> > > frames);
> > > + if (detect)
> > > + test_data->streak++;
> > > + else
> > > + test_data->streak = 0;
> > > +
> > > + /* A streak of 3 gives confidence that the signal is
> > > good.
> > > */
> > > + if (test_data->streak == 3)
> > > + return 1;
> > > +
> > > + return 0;
> > > +}
> > > +
> > > +static void test_integrity(const char *device_name)
> > > +{
> > > + struct test_data data;
> > > + int sampling_rate;
> > > + bool run = false;
> > > + bool test;
> > > + int i, j;
> > > + int ret;
> > > +
> > > + data.alsa = alsa_init();
> > > + igt_assert(data.alsa);
> > > +
> > > + ret = alsa_open_output(data.alsa, device_name);
> > > + igt_assert(ret >= 0);
> > > +
> > > + ret = alsa_open_input(data.alsa, CAPTURE_DEVICE_NAME);
> > > + igt_assert(ret >= 0);
> > > +
> > > + alsa_configure_input(data.alsa, CAPTURE_CHANNELS,
> > > + CAPTURE_SAMPLE_RATE);
> > > +
> > > + for (i = 0; i < sampling_rates_count; i++) {
> > > + sampling_rate = sampling_rates[i];
> > > +
> > > + test = alsa_test_output_configuration(data.alsa,
> > > + PLAYBACK_C
> > > HAN
> > > N
> > > ELS,
> > > + sampling_r
> > > ate
> > > )
> > > ;
> > > + if (!test)
> > > + continue;
> > > +
> > > + igt_debug("Testing with sampling rate %d\n",
> > > sampling_rate);
> > > +
> > > + alsa_configure_output(data.alsa,
> > > PLAYBACK_CHANNELS,
> > > + sampling_rate);
> > > +
> > > + data.signal =
> > > audio_signal_init(PLAYBACK_CHANNELS,
> > > + sampling_rate);
> > > + igt_assert(data.signal);
> > > +
> > > + for (j = 0; j < test_frequencies_count; j++)
> > > + audio_signal_add_frequency(data.signal,
> > > + test_frequenc
> > > ies
> > > [
> > > j]);
> > > +
> > > + audio_signal_synthesize(data.signal);
> > > +
> > > + alsa_register_output_callback(data.alsa,
> > > output_callback,
> > > + &data,
> > > PLAYBACK_FRAMES);
> > > + alsa_register_input_callback(data.alsa,
> > > input_callback, &data,
> > > + CAPTURE_FRAMES);
> > > +
> > > + data.streak = 0;
> > > +
> > > + ret = alsa_run(data.alsa, RUN_TIMEOUT);
> > > + igt_assert(ret > 0);
> > > +
> > > + audio_signal_clean(data.signal);
> > > + free(data.signal);
> > > +
> > > + run = true;
> > > + }
> > > +
> > > + /* Make sure we tested at least one frequency */
> > > + igt_assert(run);
> > > +
> > > + alsa_close_input(data.alsa);
> > > + alsa_close_output(data.alsa);
> > > + free(data.alsa);
> > > +}
> > > +
> > > +igt_main
> > > +{
> > > + igt_subtest("hdmi-integrity")
> > > + test_integrity("HDMI");
> > > +}
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