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1// SPDX-License-Identifier: GPL-2.0-only2// Copyright (C) 2024 Cirrus Logic, Inc. and3// Cirrus Logic International Semiconductor Ltd.4 5#include <kunit/device.h>6#include <kunit/test.h>7#include <linux/module.h>8#include <sound/control.h>9#include <sound/soc.h>10#include <sound/soc-card.h>11 12struct soc_card_test_priv {13 struct device *card_dev;14 struct snd_soc_card *card;15};16 17static const struct snd_kcontrol_new test_card_controls[] = {18 SOC_SINGLE("Fee", SND_SOC_NOPM, 0, 1, 0),19 SOC_SINGLE("Fi", SND_SOC_NOPM, 1, 1, 0),20 SOC_SINGLE("Fo", SND_SOC_NOPM, 2, 1, 0),21 SOC_SINGLE("Fum", SND_SOC_NOPM, 3, 1, 0),22 SOC_SINGLE("Left Fee", SND_SOC_NOPM, 4, 1, 0),23 SOC_SINGLE("Right Fee", SND_SOC_NOPM, 5, 1, 0),24 SOC_SINGLE("Left Fi", SND_SOC_NOPM, 6, 1, 0),25 SOC_SINGLE("Right Fi", SND_SOC_NOPM, 7, 1, 0),26 SOC_SINGLE("Left Fo", SND_SOC_NOPM, 8, 1, 0),27 SOC_SINGLE("Right Fo", SND_SOC_NOPM, 9, 1, 0),28 SOC_SINGLE("Left Fum", SND_SOC_NOPM, 10, 1, 0),29 SOC_SINGLE("Right Fum", SND_SOC_NOPM, 11, 1, 0),30};31 32static void test_snd_soc_card_get_kcontrol(struct kunit *test)33{34 struct soc_card_test_priv *priv = test->priv;35 struct snd_soc_card *card = priv->card;36 struct snd_kcontrol *kc;37 struct soc_mixer_control *mc;38 int i, ret;39 40 ret = snd_soc_add_card_controls(card, test_card_controls, ARRAY_SIZE(test_card_controls));41 KUNIT_ASSERT_EQ(test, ret, 0);42 43 /* Look up every control */44 for (i = 0; i < ARRAY_SIZE(test_card_controls); ++i) {45 kc = snd_soc_card_get_kcontrol(card, test_card_controls[i].name);46 KUNIT_EXPECT_NOT_ERR_OR_NULL_MSG(test, kc, "Failed to find '%s'\n",47 test_card_controls[i].name);48 if (!kc)49 continue;50 51 /* Test that it is the correct control */52 mc = (struct soc_mixer_control *)kc->private_value;53 KUNIT_EXPECT_EQ_MSG(test, mc->shift, i, "For '%s'\n", test_card_controls[i].name);54 }55 56 /* Test some names that should not be found */57 kc = snd_soc_card_get_kcontrol(card, "None");58 KUNIT_EXPECT_NULL(test, kc);59 60 kc = snd_soc_card_get_kcontrol(card, "Left None");61 KUNIT_EXPECT_NULL(test, kc);62 63 kc = snd_soc_card_get_kcontrol(card, "Left");64 KUNIT_EXPECT_NULL(test, kc);65 66 kc = snd_soc_card_get_kcontrol(card, NULL);67 KUNIT_EXPECT_NULL(test, kc);68}69 70static int soc_card_test_case_init(struct kunit *test)71{72 struct soc_card_test_priv *priv;73 int ret;74 75 priv = kunit_kzalloc(test, sizeof(*priv), GFP_KERNEL);76 if (!priv)77 return -ENOMEM;78 79 test->priv = priv;80 81 priv->card = kunit_kzalloc(test, sizeof(*priv->card), GFP_KERNEL);82 if (!priv->card)83 return -ENOMEM;84 85 priv->card_dev = kunit_device_register(test, "sound-soc-card-test");86 priv->card_dev = get_device(priv->card_dev);87 if (!priv->card_dev)88 return -ENODEV;89 90 priv->card->name = "soc-card-test";91 priv->card->dev = priv->card_dev;92 priv->card->owner = THIS_MODULE;93 94 ret = snd_soc_register_card(priv->card);95 if (ret) {96 put_device(priv->card_dev);97 return ret;98 }99 100 return 0;101}102 103static void soc_card_test_case_exit(struct kunit *test)104{105 struct soc_card_test_priv *priv = test->priv;106 107 if (priv->card)108 snd_soc_unregister_card(priv->card);109 110 if (priv->card_dev)111 put_device(priv->card_dev);112}113 114static struct kunit_case soc_card_test_cases[] = {115 KUNIT_CASE(test_snd_soc_card_get_kcontrol),116 {}117};118 119static struct kunit_suite soc_card_test_suite = {120 .name = "soc-card",121 .test_cases = soc_card_test_cases,122 .init = soc_card_test_case_init,123 .exit = soc_card_test_case_exit,124};125 126kunit_test_suites(&soc_card_test_suite);127 128MODULE_DESCRIPTION("ASoC soc-card KUnit test");129MODULE_LICENSE("GPL");130