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 | |
12 | static 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 | |
118 | static 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(params: ¶ms); |
129 | snd_mask_none(mask: hw_param_mask(params: ¶ms, SNDRV_PCM_HW_PARAM_FORMAT)); |
130 | hw_param_interval(params: ¶ms, SNDRV_PCM_HW_PARAM_RATE)->min = rate; |
131 | hw_param_interval(params: ¶ms, SNDRV_PCM_HW_PARAM_RATE)->max = rate; |
132 | hw_param_interval(params: ¶ms, SNDRV_PCM_HW_PARAM_CHANNELS)->min = channels; |
133 | hw_param_interval(params: ¶ms, SNDRV_PCM_HW_PARAM_CHANNELS)->max = channels; |
134 | params_set_format(p: ¶ms, fmt); |
135 | |
136 | got_bclk = snd_soc_tdm_params_to_bclk(params: ¶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 | |
144 | static 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 | rate: tdm_params_to_bclk_cases[i].rate, |
151 | fmt: tdm_params_to_bclk_cases[i].fmt, |
152 | channels: tdm_params_to_bclk_cases[i].channels, |
153 | tdm_width: tdm_params_to_bclk_cases[i].tdm_width, |
154 | tdm_slots: tdm_params_to_bclk_cases[i].tdm_slots, |
155 | slot_multiple: tdm_params_to_bclk_cases[i].slot_multiple, |
156 | expected_bclk: 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 | rate: tdm_params_to_bclk_cases[i].rate, |
164 | fmt: tdm_params_to_bclk_cases[i].fmt, |
165 | channels: tdm_params_to_bclk_cases[i].channels, |
166 | tdm_width: tdm_params_to_bclk_cases[i].tdm_width, |
167 | tdm_slots: tdm_params_to_bclk_cases[i].tdm_slots, |
168 | slot_multiple: 1, |
169 | expected_bclk: tdm_params_to_bclk_cases[i].bclk); |
170 | } |
171 | } |
172 | |
173 | static 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(params: ¶ms); |
182 | snd_mask_none(mask: hw_param_mask(params: ¶ms, SNDRV_PCM_HW_PARAM_FORMAT)); |
183 | hw_param_interval(params: ¶ms, SNDRV_PCM_HW_PARAM_RATE)->min = rate; |
184 | hw_param_interval(params: ¶ms, SNDRV_PCM_HW_PARAM_RATE)->max = rate; |
185 | hw_param_interval(params: ¶ms, SNDRV_PCM_HW_PARAM_CHANNELS)->min = channels; |
186 | hw_param_interval(params: ¶ms, SNDRV_PCM_HW_PARAM_CHANNELS)->max = channels; |
187 | params_set_format(p: ¶ms, fmt); |
188 | |
189 | got_bclk = snd_soc_params_to_bclk(parms: ¶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 | |
196 | static 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 | rate: tdm_params_to_bclk_cases[i].rate, |
212 | fmt: tdm_params_to_bclk_cases[i].fmt, |
213 | channels: tdm_params_to_bclk_cases[i].channels, |
214 | expected_bclk: tdm_params_to_bclk_cases[i].bclk); |
215 | } |
216 | } |
217 | |
218 | static 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 | |
224 | static struct kunit_suite soc_utils_test_suite = { |
225 | .name = "soc-utils" , |
226 | .test_cases = soc_utils_test_cases, |
227 | }; |
228 | |
229 | kunit_test_suites(&soc_utils_test_suite); |
230 | |
231 | MODULE_DESCRIPTION("ASoC soc-utils kunit test" ); |
232 | MODULE_LICENSE("GPL" ); |
233 | |