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1// SPDX-License-Identifier: GPL-2.0-only2// Copyright (C) 2022 Cirrus Logic, Inc. and3// Cirrus Logic International Semiconductor Ltd.4 5#include <kunit/test.h>6#include <linux/module.h>7#include <sound/pcm.h>8#include <sound/pcm_params.h>9#include <sound/soc.h>10#include <uapi/sound/asound.h>11 12static const struct {13 u32 rate;14 snd_pcm_format_t fmt;15 u8 channels;16 u8 tdm_width;17 u8 tdm_slots;18 u8 slot_multiple;19 u32 bclk;20} tdm_params_to_bclk_cases[] = {21 /* rate fmt channels tdm_width tdm_slots slot_multiple bclk */22 23 /* From params only */24 { 8000, SNDRV_PCM_FORMAT_S16_LE, 1, 0, 0, 0, 128000 },25 { 8000, SNDRV_PCM_FORMAT_S16_LE, 2, 0, 0, 0, 256000 },26 { 8000, SNDRV_PCM_FORMAT_S24_LE, 1, 0, 0, 0, 192000 },27 { 8000, SNDRV_PCM_FORMAT_S24_LE, 2, 0, 0, 0, 384000 },28 { 8000, SNDRV_PCM_FORMAT_S32_LE, 1, 0, 0, 0, 256000 },29 { 8000, SNDRV_PCM_FORMAT_S32_LE, 2, 0, 0, 0, 512000 },30 { 44100, SNDRV_PCM_FORMAT_S16_LE, 1, 0, 0, 0, 705600 },31 { 44100, SNDRV_PCM_FORMAT_S16_LE, 2, 0, 0, 0, 1411200 },32 { 44100, SNDRV_PCM_FORMAT_S24_LE, 1, 0, 0, 0, 1058400 },33 { 44100, SNDRV_PCM_FORMAT_S24_LE, 2, 0, 0, 0, 2116800 },34 { 44100, SNDRV_PCM_FORMAT_S32_LE, 1, 0, 0, 0, 1411200 },35 { 44100, SNDRV_PCM_FORMAT_S32_LE, 2, 0, 0, 0, 2822400 },36 { 384000, SNDRV_PCM_FORMAT_S16_LE, 1, 0, 0, 0, 6144000 },37 { 384000, SNDRV_PCM_FORMAT_S16_LE, 2, 0, 0, 0, 12288000 },38 { 384000, SNDRV_PCM_FORMAT_S24_LE, 1, 0, 0, 0, 9216000 },39 { 384000, SNDRV_PCM_FORMAT_S24_LE, 2, 0, 0, 0, 18432000 },40 { 384000, SNDRV_PCM_FORMAT_S32_LE, 1, 0, 0, 0, 12288000 },41 { 384000, SNDRV_PCM_FORMAT_S32_LE, 2, 0, 0, 0, 24576000 },42 43 /* I2S from params */44 { 8000, SNDRV_PCM_FORMAT_S16_LE, 1, 0, 0, 2, 256000 },45 { 8000, SNDRV_PCM_FORMAT_S16_LE, 2, 0, 0, 2, 256000 },46 { 8000, SNDRV_PCM_FORMAT_S24_LE, 1, 0, 0, 2, 384000 },47 { 8000, SNDRV_PCM_FORMAT_S24_LE, 2, 0, 0, 2, 384000 },48 { 8000, SNDRV_PCM_FORMAT_S32_LE, 1, 0, 0, 2, 512000 },49 { 8000, SNDRV_PCM_FORMAT_S32_LE, 2, 0, 0, 2, 512000 },50 { 44100, SNDRV_PCM_FORMAT_S16_LE, 1, 0, 0, 2, 1411200 },51 { 44100, SNDRV_PCM_FORMAT_S16_LE, 2, 0, 0, 2, 1411200 },52 { 44100, SNDRV_PCM_FORMAT_S24_LE, 1, 0, 0, 2, 2116800 },53 { 44100, SNDRV_PCM_FORMAT_S24_LE, 2, 0, 0, 2, 2116800 },54 { 44100, SNDRV_PCM_FORMAT_S32_LE, 1, 0, 0, 2, 2822400 },55 { 44100, SNDRV_PCM_FORMAT_S32_LE, 2, 0, 0, 2, 2822400 },56 { 384000, SNDRV_PCM_FORMAT_S16_LE, 1, 0, 0, 2, 12288000 },57 { 384000, SNDRV_PCM_FORMAT_S16_LE, 2, 0, 0, 2, 12288000 },58 { 384000, SNDRV_PCM_FORMAT_S24_LE, 1, 0, 0, 2, 18432000 },59 { 384000, SNDRV_PCM_FORMAT_S24_LE, 2, 0, 0, 2, 18432000 },60 { 384000, SNDRV_PCM_FORMAT_S32_LE, 1, 0, 0, 2, 24576000 },61 { 384000, SNDRV_PCM_FORMAT_S32_LE, 2, 0, 0, 2, 24576000 },62 63 /* Fixed 8-slot TDM, other values from params */64 { 8000, SNDRV_PCM_FORMAT_S16_LE, 1, 0, 8, 0, 1024000 },65 { 8000, SNDRV_PCM_FORMAT_S16_LE, 2, 0, 8, 0, 1024000 },66 { 8000, SNDRV_PCM_FORMAT_S16_LE, 3, 0, 8, 0, 1024000 },67 { 8000, SNDRV_PCM_FORMAT_S16_LE, 4, 0, 8, 0, 1024000 },68 { 8000, SNDRV_PCM_FORMAT_S32_LE, 1, 0, 8, 0, 2048000 },69 { 8000, SNDRV_PCM_FORMAT_S32_LE, 2, 0, 8, 0, 2048000 },70 { 8000, SNDRV_PCM_FORMAT_S32_LE, 3, 0, 8, 0, 2048000 },71 { 8000, SNDRV_PCM_FORMAT_S32_LE, 4, 0, 8, 0, 2048000 },72 { 384000, SNDRV_PCM_FORMAT_S16_LE, 1, 0, 8, 0, 49152000 },73 { 384000, SNDRV_PCM_FORMAT_S16_LE, 2, 0, 8, 0, 49152000 },74 { 384000, SNDRV_PCM_FORMAT_S16_LE, 3, 0, 8, 0, 49152000 },75 { 384000, SNDRV_PCM_FORMAT_S16_LE, 4, 0, 8, 0, 49152000 },76 { 384000, SNDRV_PCM_FORMAT_S32_LE, 1, 0, 8, 0, 98304000 },77 { 384000, SNDRV_PCM_FORMAT_S32_LE, 2, 0, 8, 0, 98304000 },78 { 384000, SNDRV_PCM_FORMAT_S32_LE, 3, 0, 8, 0, 98304000 },79 { 384000, SNDRV_PCM_FORMAT_S32_LE, 4, 0, 8, 0, 98304000 },80 81 /* Fixed 32-bit TDM, other values from params */82 { 8000, SNDRV_PCM_FORMAT_S16_LE, 1, 32, 0, 0, 256000 },83 { 8000, SNDRV_PCM_FORMAT_S16_LE, 2, 32, 0, 0, 512000 },84 { 8000, SNDRV_PCM_FORMAT_S16_LE, 3, 32, 0, 0, 768000 },85 { 8000, SNDRV_PCM_FORMAT_S16_LE, 4, 32, 0, 0, 1024000 },86 { 8000, SNDRV_PCM_FORMAT_S32_LE, 1, 32, 0, 0, 256000 },87 { 8000, SNDRV_PCM_FORMAT_S32_LE, 2, 32, 0, 0, 512000 },88 { 8000, SNDRV_PCM_FORMAT_S32_LE, 3, 32, 0, 0, 768000 },89 { 8000, SNDRV_PCM_FORMAT_S32_LE, 4, 32, 0, 0, 1024000 },90 { 384000, SNDRV_PCM_FORMAT_S16_LE, 1, 32, 0, 0, 12288000 },91 { 384000, SNDRV_PCM_FORMAT_S16_LE, 2, 32, 0, 0, 24576000 },92 { 384000, SNDRV_PCM_FORMAT_S16_LE, 3, 32, 0, 0, 36864000 },93 { 384000, SNDRV_PCM_FORMAT_S16_LE, 4, 32, 0, 0, 49152000 },94 { 384000, SNDRV_PCM_FORMAT_S32_LE, 1, 32, 0, 0, 12288000 },95 { 384000, SNDRV_PCM_FORMAT_S32_LE, 2, 32, 0, 0, 24576000 },96 { 384000, SNDRV_PCM_FORMAT_S32_LE, 3, 32, 0, 0, 36864000 },97 { 384000, SNDRV_PCM_FORMAT_S32_LE, 4, 32, 0, 0, 49152000 },98 99 /* Fixed 6-slot 24-bit TDM, other values from params */100 { 8000, SNDRV_PCM_FORMAT_S16_LE, 1, 24, 6, 0, 1152000 },101 { 8000, SNDRV_PCM_FORMAT_S16_LE, 2, 24, 6, 0, 1152000 },102 { 8000, SNDRV_PCM_FORMAT_S16_LE, 3, 24, 6, 0, 1152000 },103 { 8000, SNDRV_PCM_FORMAT_S16_LE, 4, 24, 6, 0, 1152000 },104 { 8000, SNDRV_PCM_FORMAT_S24_LE, 1, 24, 6, 0, 1152000 },105 { 8000, SNDRV_PCM_FORMAT_S24_LE, 2, 24, 6, 0, 1152000 },106 { 8000, SNDRV_PCM_FORMAT_S24_LE, 3, 24, 6, 0, 1152000 },107 { 8000, SNDRV_PCM_FORMAT_S24_LE, 4, 24, 6, 0, 1152000 },108 { 192000, SNDRV_PCM_FORMAT_S16_LE, 1, 24, 6, 0, 27648000 },109 { 192000, SNDRV_PCM_FORMAT_S16_LE, 2, 24, 6, 0, 27648000 },110 { 192000, SNDRV_PCM_FORMAT_S16_LE, 3, 24, 6, 0, 27648000 },111 { 192000, SNDRV_PCM_FORMAT_S16_LE, 4, 24, 6, 0, 27648000 },112 { 192000, SNDRV_PCM_FORMAT_S24_LE, 1, 24, 6, 0, 27648000 },113 { 192000, SNDRV_PCM_FORMAT_S24_LE, 2, 24, 6, 0, 27648000 },114 { 192000, SNDRV_PCM_FORMAT_S24_LE, 3, 24, 6, 0, 27648000 },115 { 192000, SNDRV_PCM_FORMAT_S24_LE, 4, 24, 6, 0, 27648000 },116};117 118static void test_tdm_params_to_bclk_one(struct kunit *test,119 unsigned int rate, snd_pcm_format_t fmt,120 unsigned int channels,121 unsigned int tdm_width, unsigned int tdm_slots,122 unsigned int slot_multiple,123 unsigned int expected_bclk)124{125 struct snd_pcm_hw_params params;126 int got_bclk;127 128 _snd_pcm_hw_params_any(¶ms);129 snd_mask_none(hw_param_mask(¶ms, SNDRV_PCM_HW_PARAM_FORMAT));130 hw_param_interval(¶ms, SNDRV_PCM_HW_PARAM_RATE)->min = rate;131 hw_param_interval(¶ms, SNDRV_PCM_HW_PARAM_RATE)->max = rate;132 hw_param_interval(¶ms, SNDRV_PCM_HW_PARAM_CHANNELS)->min = channels;133 hw_param_interval(¶ms, SNDRV_PCM_HW_PARAM_CHANNELS)->max = channels;134 params_set_format(¶ms, fmt);135 136 got_bclk = snd_soc_tdm_params_to_bclk(¶ms, tdm_width, tdm_slots, slot_multiple);137 pr_debug("%s: r=%u sb=%u ch=%u tw=%u ts=%u sm=%u expected=%u got=%d\n",138 __func__,139 rate, params_width(¶ms), channels, tdm_width, tdm_slots, slot_multiple,140 expected_bclk, got_bclk);141 KUNIT_ASSERT_EQ(test, expected_bclk, (unsigned int)got_bclk);142}143 144static void test_tdm_params_to_bclk(struct kunit *test)145{146 int i;147 148 for (i = 0; i < ARRAY_SIZE(tdm_params_to_bclk_cases); ++i) {149 test_tdm_params_to_bclk_one(test,150 tdm_params_to_bclk_cases[i].rate,151 tdm_params_to_bclk_cases[i].fmt,152 tdm_params_to_bclk_cases[i].channels,153 tdm_params_to_bclk_cases[i].tdm_width,154 tdm_params_to_bclk_cases[i].tdm_slots,155 tdm_params_to_bclk_cases[i].slot_multiple,156 tdm_params_to_bclk_cases[i].bclk);157 158 if (tdm_params_to_bclk_cases[i].slot_multiple > 0)159 continue;160 161 /* Slot multiple 1 should have the same effect as multiple 0 */162 test_tdm_params_to_bclk_one(test,163 tdm_params_to_bclk_cases[i].rate,164 tdm_params_to_bclk_cases[i].fmt,165 tdm_params_to_bclk_cases[i].channels,166 tdm_params_to_bclk_cases[i].tdm_width,167 tdm_params_to_bclk_cases[i].tdm_slots,168 1,169 tdm_params_to_bclk_cases[i].bclk);170 }171}172 173static void test_snd_soc_params_to_bclk_one(struct kunit *test,174 unsigned int rate, snd_pcm_format_t fmt,175 unsigned int channels,176 unsigned int expected_bclk)177{178 struct snd_pcm_hw_params params;179 int got_bclk;180 181 _snd_pcm_hw_params_any(¶ms);182 snd_mask_none(hw_param_mask(¶ms, SNDRV_PCM_HW_PARAM_FORMAT));183 hw_param_interval(¶ms, SNDRV_PCM_HW_PARAM_RATE)->min = rate;184 hw_param_interval(¶ms, SNDRV_PCM_HW_PARAM_RATE)->max = rate;185 hw_param_interval(¶ms, SNDRV_PCM_HW_PARAM_CHANNELS)->min = channels;186 hw_param_interval(¶ms, SNDRV_PCM_HW_PARAM_CHANNELS)->max = channels;187 params_set_format(¶ms, fmt);188 189 got_bclk = snd_soc_params_to_bclk(¶ms);190 pr_debug("%s: r=%u sb=%u ch=%u expected=%u got=%d\n",191 __func__,192 rate, params_width(¶ms), channels, expected_bclk, got_bclk);193 KUNIT_ASSERT_EQ(test, expected_bclk, (unsigned int)got_bclk);194}195 196static void test_snd_soc_params_to_bclk(struct kunit *test)197{198 int i;199 200 for (i = 0; i < ARRAY_SIZE(tdm_params_to_bclk_cases); ++i) {201 /*202 * snd_soc_params_to_bclk() is all the test cases where203 * snd_pcm_hw_params values are not overridden.204 */205 if (tdm_params_to_bclk_cases[i].tdm_width |206 tdm_params_to_bclk_cases[i].tdm_slots |207 tdm_params_to_bclk_cases[i].slot_multiple)208 continue;209 210 test_snd_soc_params_to_bclk_one(test,211 tdm_params_to_bclk_cases[i].rate,212 tdm_params_to_bclk_cases[i].fmt,213 tdm_params_to_bclk_cases[i].channels,214 tdm_params_to_bclk_cases[i].bclk);215 }216}217 218static struct kunit_case soc_utils_test_cases[] = {219 KUNIT_CASE(test_tdm_params_to_bclk),220 KUNIT_CASE(test_snd_soc_params_to_bclk),221 {}222};223 224static struct kunit_suite soc_utils_test_suite = {225 .name = "soc-utils",226 .test_cases = soc_utils_test_cases,227};228 229kunit_test_suites(&soc_utils_test_suite);230 231MODULE_DESCRIPTION("ASoC soc-utils kunit test");232MODULE_LICENSE("GPL");233