| // SPDX-License-Identifier: GPL-2.0-only |
| // Copyright (C) 2022 Cirrus Logic, Inc. and |
| // Cirrus Logic International Semiconductor Ltd. |
| |
| #include <kunit/test.h> |
| #include <linux/module.h> |
| #include <sound/pcm.h> |
| #include <sound/pcm_params.h> |
| #include <sound/soc.h> |
| #include <uapi/sound/asound.h> |
| |
| static const struct { |
| u32 rate; |
| snd_pcm_format_t fmt; |
| u8 channels; |
| u8 tdm_width; |
| u8 tdm_slots; |
| u8 slot_multiple; |
| u32 bclk; |
| } tdm_params_to_bclk_cases[] = { |
| /* rate fmt channels tdm_width tdm_slots slot_multiple bclk */ |
| |
| /* From params only */ |
| { 8000, SNDRV_PCM_FORMAT_S16_LE, 1, 0, 0, 0, 128000 }, |
| { 8000, SNDRV_PCM_FORMAT_S16_LE, 2, 0, 0, 0, 256000 }, |
| { 8000, SNDRV_PCM_FORMAT_S24_LE, 1, 0, 0, 0, 192000 }, |
| { 8000, SNDRV_PCM_FORMAT_S24_LE, 2, 0, 0, 0, 384000 }, |
| { 8000, SNDRV_PCM_FORMAT_S32_LE, 1, 0, 0, 0, 256000 }, |
| { 8000, SNDRV_PCM_FORMAT_S32_LE, 2, 0, 0, 0, 512000 }, |
| { 44100, SNDRV_PCM_FORMAT_S16_LE, 1, 0, 0, 0, 705600 }, |
| { 44100, SNDRV_PCM_FORMAT_S16_LE, 2, 0, 0, 0, 1411200 }, |
| { 44100, SNDRV_PCM_FORMAT_S24_LE, 1, 0, 0, 0, 1058400 }, |
| { 44100, SNDRV_PCM_FORMAT_S24_LE, 2, 0, 0, 0, 2116800 }, |
| { 44100, SNDRV_PCM_FORMAT_S32_LE, 1, 0, 0, 0, 1411200 }, |
| { 44100, SNDRV_PCM_FORMAT_S32_LE, 2, 0, 0, 0, 2822400 }, |
| { 384000, SNDRV_PCM_FORMAT_S16_LE, 1, 0, 0, 0, 6144000 }, |
| { 384000, SNDRV_PCM_FORMAT_S16_LE, 2, 0, 0, 0, 12288000 }, |
| { 384000, SNDRV_PCM_FORMAT_S24_LE, 1, 0, 0, 0, 9216000 }, |
| { 384000, SNDRV_PCM_FORMAT_S24_LE, 2, 0, 0, 0, 18432000 }, |
| { 384000, SNDRV_PCM_FORMAT_S32_LE, 1, 0, 0, 0, 12288000 }, |
| { 384000, SNDRV_PCM_FORMAT_S32_LE, 2, 0, 0, 0, 24576000 }, |
| |
| /* I2S from params */ |
| { 8000, SNDRV_PCM_FORMAT_S16_LE, 1, 0, 0, 2, 256000 }, |
| { 8000, SNDRV_PCM_FORMAT_S16_LE, 2, 0, 0, 2, 256000 }, |
| { 8000, SNDRV_PCM_FORMAT_S24_LE, 1, 0, 0, 2, 384000 }, |
| { 8000, SNDRV_PCM_FORMAT_S24_LE, 2, 0, 0, 2, 384000 }, |
| { 8000, SNDRV_PCM_FORMAT_S32_LE, 1, 0, 0, 2, 512000 }, |
| { 8000, SNDRV_PCM_FORMAT_S32_LE, 2, 0, 0, 2, 512000 }, |
| { 44100, SNDRV_PCM_FORMAT_S16_LE, 1, 0, 0, 2, 1411200 }, |
| { 44100, SNDRV_PCM_FORMAT_S16_LE, 2, 0, 0, 2, 1411200 }, |
| { 44100, SNDRV_PCM_FORMAT_S24_LE, 1, 0, 0, 2, 2116800 }, |
| { 44100, SNDRV_PCM_FORMAT_S24_LE, 2, 0, 0, 2, 2116800 }, |
| { 44100, SNDRV_PCM_FORMAT_S32_LE, 1, 0, 0, 2, 2822400 }, |
| { 44100, SNDRV_PCM_FORMAT_S32_LE, 2, 0, 0, 2, 2822400 }, |
| { 384000, SNDRV_PCM_FORMAT_S16_LE, 1, 0, 0, 2, 12288000 }, |
| { 384000, SNDRV_PCM_FORMAT_S16_LE, 2, 0, 0, 2, 12288000 }, |
| { 384000, SNDRV_PCM_FORMAT_S24_LE, 1, 0, 0, 2, 18432000 }, |
| { 384000, SNDRV_PCM_FORMAT_S24_LE, 2, 0, 0, 2, 18432000 }, |
| { 384000, SNDRV_PCM_FORMAT_S32_LE, 1, 0, 0, 2, 24576000 }, |
| { 384000, SNDRV_PCM_FORMAT_S32_LE, 2, 0, 0, 2, 24576000 }, |
| |
| /* Fixed 8-slot TDM, other values from params */ |
| { 8000, SNDRV_PCM_FORMAT_S16_LE, 1, 0, 8, 0, 1024000 }, |
| { 8000, SNDRV_PCM_FORMAT_S16_LE, 2, 0, 8, 0, 1024000 }, |
| { 8000, SNDRV_PCM_FORMAT_S16_LE, 3, 0, 8, 0, 1024000 }, |
| { 8000, SNDRV_PCM_FORMAT_S16_LE, 4, 0, 8, 0, 1024000 }, |
| { 8000, SNDRV_PCM_FORMAT_S32_LE, 1, 0, 8, 0, 2048000 }, |
| { 8000, SNDRV_PCM_FORMAT_S32_LE, 2, 0, 8, 0, 2048000 }, |
| { 8000, SNDRV_PCM_FORMAT_S32_LE, 3, 0, 8, 0, 2048000 }, |
| { 8000, SNDRV_PCM_FORMAT_S32_LE, 4, 0, 8, 0, 2048000 }, |
| { 384000, SNDRV_PCM_FORMAT_S16_LE, 1, 0, 8, 0, 49152000 }, |
| { 384000, SNDRV_PCM_FORMAT_S16_LE, 2, 0, 8, 0, 49152000 }, |
| { 384000, SNDRV_PCM_FORMAT_S16_LE, 3, 0, 8, 0, 49152000 }, |
| { 384000, SNDRV_PCM_FORMAT_S16_LE, 4, 0, 8, 0, 49152000 }, |
| { 384000, SNDRV_PCM_FORMAT_S32_LE, 1, 0, 8, 0, 98304000 }, |
| { 384000, SNDRV_PCM_FORMAT_S32_LE, 2, 0, 8, 0, 98304000 }, |
| { 384000, SNDRV_PCM_FORMAT_S32_LE, 3, 0, 8, 0, 98304000 }, |
| { 384000, SNDRV_PCM_FORMAT_S32_LE, 4, 0, 8, 0, 98304000 }, |
| |
| /* Fixed 32-bit TDM, other values from params */ |
| { 8000, SNDRV_PCM_FORMAT_S16_LE, 1, 32, 0, 0, 256000 }, |
| { 8000, SNDRV_PCM_FORMAT_S16_LE, 2, 32, 0, 0, 512000 }, |
| { 8000, SNDRV_PCM_FORMAT_S16_LE, 3, 32, 0, 0, 768000 }, |
| { 8000, SNDRV_PCM_FORMAT_S16_LE, 4, 32, 0, 0, 1024000 }, |
| { 8000, SNDRV_PCM_FORMAT_S32_LE, 1, 32, 0, 0, 256000 }, |
| { 8000, SNDRV_PCM_FORMAT_S32_LE, 2, 32, 0, 0, 512000 }, |
| { 8000, SNDRV_PCM_FORMAT_S32_LE, 3, 32, 0, 0, 768000 }, |
| { 8000, SNDRV_PCM_FORMAT_S32_LE, 4, 32, 0, 0, 1024000 }, |
| { 384000, SNDRV_PCM_FORMAT_S16_LE, 1, 32, 0, 0, 12288000 }, |
| { 384000, SNDRV_PCM_FORMAT_S16_LE, 2, 32, 0, 0, 24576000 }, |
| { 384000, SNDRV_PCM_FORMAT_S16_LE, 3, 32, 0, 0, 36864000 }, |
| { 384000, SNDRV_PCM_FORMAT_S16_LE, 4, 32, 0, 0, 49152000 }, |
| { 384000, SNDRV_PCM_FORMAT_S32_LE, 1, 32, 0, 0, 12288000 }, |
| { 384000, SNDRV_PCM_FORMAT_S32_LE, 2, 32, 0, 0, 24576000 }, |
| { 384000, SNDRV_PCM_FORMAT_S32_LE, 3, 32, 0, 0, 36864000 }, |
| { 384000, SNDRV_PCM_FORMAT_S32_LE, 4, 32, 0, 0, 49152000 }, |
| |
| /* Fixed 6-slot 24-bit TDM, other values from params */ |
| { 8000, SNDRV_PCM_FORMAT_S16_LE, 1, 24, 6, 0, 1152000 }, |
| { 8000, SNDRV_PCM_FORMAT_S16_LE, 2, 24, 6, 0, 1152000 }, |
| { 8000, SNDRV_PCM_FORMAT_S16_LE, 3, 24, 6, 0, 1152000 }, |
| { 8000, SNDRV_PCM_FORMAT_S16_LE, 4, 24, 6, 0, 1152000 }, |
| { 8000, SNDRV_PCM_FORMAT_S24_LE, 1, 24, 6, 0, 1152000 }, |
| { 8000, SNDRV_PCM_FORMAT_S24_LE, 2, 24, 6, 0, 1152000 }, |
| { 8000, SNDRV_PCM_FORMAT_S24_LE, 3, 24, 6, 0, 1152000 }, |
| { 8000, SNDRV_PCM_FORMAT_S24_LE, 4, 24, 6, 0, 1152000 }, |
| { 192000, SNDRV_PCM_FORMAT_S16_LE, 1, 24, 6, 0, 27648000 }, |
| { 192000, SNDRV_PCM_FORMAT_S16_LE, 2, 24, 6, 0, 27648000 }, |
| { 192000, SNDRV_PCM_FORMAT_S16_LE, 3, 24, 6, 0, 27648000 }, |
| { 192000, SNDRV_PCM_FORMAT_S16_LE, 4, 24, 6, 0, 27648000 }, |
| { 192000, SNDRV_PCM_FORMAT_S24_LE, 1, 24, 6, 0, 27648000 }, |
| { 192000, SNDRV_PCM_FORMAT_S24_LE, 2, 24, 6, 0, 27648000 }, |
| { 192000, SNDRV_PCM_FORMAT_S24_LE, 3, 24, 6, 0, 27648000 }, |
| { 192000, SNDRV_PCM_FORMAT_S24_LE, 4, 24, 6, 0, 27648000 }, |
| }; |
| |
| static void test_tdm_params_to_bclk_one(struct kunit *test, |
| unsigned int rate, snd_pcm_format_t fmt, |
| unsigned int channels, |
| unsigned int tdm_width, unsigned int tdm_slots, |
| unsigned int slot_multiple, |
| unsigned int expected_bclk) |
| { |
| struct snd_pcm_hw_params params; |
| int got_bclk; |
| |
| _snd_pcm_hw_params_any(¶ms); |
| snd_mask_none(hw_param_mask(¶ms, SNDRV_PCM_HW_PARAM_FORMAT)); |
| hw_param_interval(¶ms, SNDRV_PCM_HW_PARAM_RATE)->min = rate; |
| hw_param_interval(¶ms, SNDRV_PCM_HW_PARAM_RATE)->max = rate; |
| hw_param_interval(¶ms, SNDRV_PCM_HW_PARAM_CHANNELS)->min = channels; |
| hw_param_interval(¶ms, SNDRV_PCM_HW_PARAM_CHANNELS)->max = channels; |
| params_set_format(¶ms, fmt); |
| |
| got_bclk = snd_soc_tdm_params_to_bclk(¶ms, tdm_width, tdm_slots, slot_multiple); |
| pr_debug("%s: r=%u sb=%u ch=%u tw=%u ts=%u sm=%u expected=%u got=%d\n", |
| __func__, |
| rate, params_width(¶ms), channels, tdm_width, tdm_slots, slot_multiple, |
| expected_bclk, got_bclk); |
| KUNIT_ASSERT_EQ(test, expected_bclk, (unsigned int)got_bclk); |
| } |
| |
| static void test_tdm_params_to_bclk(struct kunit *test) |
| { |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(tdm_params_to_bclk_cases); ++i) { |
| test_tdm_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].tdm_width, |
| tdm_params_to_bclk_cases[i].tdm_slots, |
| tdm_params_to_bclk_cases[i].slot_multiple, |
| tdm_params_to_bclk_cases[i].bclk); |
| |
| if (tdm_params_to_bclk_cases[i].slot_multiple > 0) |
| continue; |
| |
| /* Slot multiple 1 should have the same effect as multiple 0 */ |
| test_tdm_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].tdm_width, |
| tdm_params_to_bclk_cases[i].tdm_slots, |
| 1, |
| tdm_params_to_bclk_cases[i].bclk); |
| } |
| } |
| |
| 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(¶ms); |
| snd_mask_none(hw_param_mask(¶ms, SNDRV_PCM_HW_PARAM_FORMAT)); |
| hw_param_interval(¶ms, SNDRV_PCM_HW_PARAM_RATE)->min = rate; |
| hw_param_interval(¶ms, SNDRV_PCM_HW_PARAM_RATE)->max = rate; |
| hw_param_interval(¶ms, SNDRV_PCM_HW_PARAM_CHANNELS)->min = channels; |
| hw_param_interval(¶ms, SNDRV_PCM_HW_PARAM_CHANNELS)->max = channels; |
| params_set_format(¶ms, fmt); |
| |
| got_bclk = snd_soc_params_to_bclk(¶ms); |
| pr_debug("%s: r=%u sb=%u ch=%u expected=%u got=%d\n", |
| __func__, |
| rate, params_width(¶ms), 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), |
| {} |
| }; |
| |
| static struct kunit_suite soc_utils_test_suite = { |
| .name = "soc-utils", |
| .test_cases = soc_utils_test_cases, |
| }; |
| |
| kunit_test_suites(&soc_utils_test_suite); |
| |
| MODULE_DESCRIPTION("ASoC soc-utils kunit test"); |
| MODULE_LICENSE("GPL"); |
