1// SPDX-License-Identifier: GPL-2.0-only 2// Copyright (C) 2022 Cirrus Logic, Inc. and 3// 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 where 203 * 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