Unverified Commit e32e23a2 authored by Richard Fitzgerald's avatar Richard Fitzgerald Committed by Mark Brown
Browse files

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



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: default avatarRichard Fitzgerald <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220817125508.1406651-1-rf@opensource.cirrus.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent aa16a3dc

sound/soc/soc-utils-test.c

+46 −0
Original line number Diff line number Diff line
@@ -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[] = {

	KUNIT_CASE(test_tdm_params_to_bclk),

	KUNIT_CASE(test_snd_soc_params_to_bclk),

	{}

};