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ASoC: soc-utils-test: Add test for snd_soc_params_to_bclk()

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snd_soc_params_to_bclk() calculates the BCLK from only the information in
snd_pcm_hw_params. It is therefore a subset of the functionality of
snd_soc_tdm_params_to_bclk() so can use a subset of the test case table.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220817125508.1406651-1-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Richard Fitzgerald 2022-08-17 13:55:08 +01:00 committed by Mark Brown
parent aa16a3dc67
commit e32e23a2b5
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1 changed files with 46 additions and 0 deletions
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46
sound/soc/soc-utils-test.c
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@ -170,8 +170,54 @@ static void test_tdm_params_to_bclk(struct kunit *test)
} }
} }
static void test_snd_soc_params_to_bclk_one(struct kunit *test,
unsigned int rate, snd_pcm_format_t fmt,
unsigned int channels,
unsigned int expected_bclk)
{
struct snd_pcm_hw_params params;
int got_bclk;
_snd_pcm_hw_params_any(&params);
snd_mask_none(hw_param_mask(&params, SNDRV_PCM_HW_PARAM_FORMAT));
hw_param_interval(&params, SNDRV_PCM_HW_PARAM_RATE)->min = rate;
hw_param_interval(&params, SNDRV_PCM_HW_PARAM_RATE)->max = rate;
hw_param_interval(&params, SNDRV_PCM_HW_PARAM_CHANNELS)->min = channels;
hw_param_interval(&params, SNDRV_PCM_HW_PARAM_CHANNELS)->max = channels;
params_set_format(&params, fmt);
got_bclk = snd_soc_params_to_bclk(&params);
pr_debug("%s: r=%u sb=%u ch=%u expected=%u got=%d\n",
__func__,
rate, params_width(&params), channels, expected_bclk, got_bclk);
KUNIT_ASSERT_EQ(test, expected_bclk, (unsigned int)got_bclk);
}
static void test_snd_soc_params_to_bclk(struct kunit *test)
{
int i;
for (i = 0; i < ARRAY_SIZE(tdm_params_to_bclk_cases); ++i) {
/*
* snd_soc_params_to_bclk() is all the test cases where
* snd_pcm_hw_params values are not overridden.
*/
if (tdm_params_to_bclk_cases[i].tdm_width |
tdm_params_to_bclk_cases[i].tdm_slots |
tdm_params_to_bclk_cases[i].slot_multiple)
continue;
test_snd_soc_params_to_bclk_one(test,
tdm_params_to_bclk_cases[i].rate,
tdm_params_to_bclk_cases[i].fmt,
tdm_params_to_bclk_cases[i].channels,
tdm_params_to_bclk_cases[i].bclk);
}
}
static struct kunit_case soc_utils_test_cases[] = { static struct kunit_case soc_utils_test_cases[] = {
KUNIT_CASE(test_tdm_params_to_bclk), KUNIT_CASE(test_tdm_params_to_bclk),
KUNIT_CASE(test_snd_soc_params_to_bclk),
{} {}
}; };