tests: drivers: i2s: Add test for 8ch, 32bit, 48k TDM (ce68b5a7) · Commits · Wenxi XU / zephyr

tests/drivers/i2s/i2s_additional/Kconfig

+8 −0

Original line number	Diff line number	Diff line
		@@ -75,6 +75,14 @@ config I2S_TEST_EIGHT_CHANNELS_UNSUPPORTED
		When set to 'y', test will check that i2s_configure() returns -EINVAL.
		When set to 'n', test will do the transmission.

		config I2S_TEST_EIGHT_CHANNELS_32B_48K_UNSUPPORTED
		bool "Skip test with 8 channels, 32 bit word size and 48k sample rate"
		depends on !I2S_TEST_EIGHT_CHANNELS_UNSUPPORTED
		help
		Skip test that is challenging due to high data throughput.
		When set to 'y', test will be skipped.
		When set to 'n', test will do the transmission.

		config I2S_TEST_DATA_FORMAT_I2S_UNSUPPORTED
		bool "I2S_FMT_DATA_FORMAT_I2S is not supported by the driver"
		help

tests/drivers/i2s/i2s_additional/boards/nrf54h20dk_nrf54h20_cpuapp_aclk.overlay

0 → 100644

+16 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (c) 2025 Nordic Semiconductor ASA
		*
		* SPDX-License-Identifier: Apache-2.0
		*/

		&audiopll {
		status = "okay";
		frequency = <NRFS_AUDIOPLL_FREQ_AUDIO_48K>;
		};

		&tdm130 {
		mck-frequency = <12288000>;
		mck-clock-source = "ACLK";
		sck-clock-source = "ACLK";
		};

tests/drivers/i2s/i2s_additional/src/main.c

+40 −3

Original line number	Diff line number	Diff line
		@@ -19,7 +19,7 @@ LOG_MODULE_REGISTER(i2s_add, LOG_LEVEL_INF);
		#define NUMBER_OF_CHANNELS 2
		#define FRAME_CLK_FREQ 44100

		#define NUM_BLOCKS 20
		#define NUM_BLOCKS 4
		#define TIMEOUT 1000

		#define SAMPLES_COUNT 64
		@@ -519,9 +519,9 @@ ZTEST(i2s_additional, test_02b_four_channels)
		#endif /* CONFIG_I2S_TEST_FOUR_CHANNELS_UNSUPPORTED */
		}

		/** @brief Test I2S transfer with eight channels.
		/** @brief Test I2S transfer with eight channels, 16 bit and 44.1 kHz.
		*/
		ZTEST(i2s_additional, test_02c_eight_channels)
		ZTEST(i2s_additional, test_02c_eight_channels_default)
		{
		struct i2s_config i2s_cfg = default_i2s_cfg;

		@@ -549,6 +549,43 @@ ZTEST(i2s_additional, test_02c_eight_channels)
		#endif /* CONFIG_I2S_TEST_EIGHT_CHANNELS_UNSUPPORTED */
		}

		/** @brief Test I2S transfer with eight channels, 32 bit and 48 kHz.
		*/
		ZTEST(i2s_additional, test_02d_eight_channels_high_throughput)
		{
		struct i2s_config i2s_cfg = default_i2s_cfg;

		i2s_cfg.channels = 8;
		i2s_cfg.word_size = 32;
		i2s_cfg.frame_clk_freq = 48000;

		#if defined(CONFIG_I2S_TEST_EIGHT_CHANNELS_UNSUPPORTED)
		int ret;

		ret = i2s_configure(dev_i2s, I2S_DIR_TX, &i2s_cfg);
		zassert_equal(ret, -EINVAL, "Unexpected result %d", ret);
		#else /* CONFIG_I2S_TEST_EIGHT_CHANNELS_UNSUPPORTED */

		#if defined(CONFIG_I2S_TEST_EIGHT_CHANNELS_32B_48K_UNSUPPORTED)
		/* Skip this test if driver supports 8ch but fails in this configuration. */
		ztest_test_skip();
		#endif

		/* Select format that supports eight channels. */
		#if !defined(CONFIG_I2S_TEST_DATA_FORMAT_PCM_LONG_UNSUPPORTED)
		i2s_cfg.format = I2S_FMT_DATA_FORMAT_PCM_LONG;
		TC_PRINT("Selected format is I2S_FMT_DATA_FORMAT_PCM_LONG\n");
		#elif !defined(CONFIG_I2S_TEST_DATA_FORMAT_PCM_SHORT_UNSUPPORTED)
		i2s_cfg.format = I2S_FMT_DATA_FORMAT_PCM_SHORT;
		TC_PRINT("Selected format is I2S_FMT_DATA_FORMAT_PCM_SHORT\n");
		#else
		#error "Don't know what format supports eight channels."
		#endif

		i2s_dir_both_transfer_long(&i2s_cfg);
		#endif /* CONFIG_I2S_TEST_EIGHT_CHANNELS_UNSUPPORTED */
		}

		/** @brief Test I2S transfer with format I2S_FMT_DATA_FORMAT_I2S
		*/
		ZTEST(i2s_additional, test_03a_format_i2s)

tests/drivers/i2s/i2s_additional/testcase.yaml

+11 −0

Original line number	Diff line number	Diff line
		@@ -26,6 +26,17 @@ tests:
		drivers.i2s.additional.gpio_loopback.54h:
		harness_config:
		fixture: i2s_loopback
		extra_configs:
		- CONFIG_I2S_TEST_EIGHT_CHANNELS_32B_48K_UNSUPPORTED=y
		platform_allow:
		- nrf54h20dk/nrf54h20/cpuapp
		integration_platforms:
		- nrf54h20dk/nrf54h20/cpuapp

		drivers.i2s.additional.gpio_loopback.54h.aclk:
		harness_config:
		fixture: i2s_loopback
		extra_args: EXTRA_DTC_OVERLAY_FILE="boards/nrf54h20dk_nrf54h20_cpuapp_aclk.overlay"
		platform_allow:
		- nrf54h20dk/nrf54h20/cpuapp
		integration_platforms:

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