diff options
Diffstat (limited to 'sound/soc/soc-card-test.c')
| -rw-r--r-- | sound/soc/soc-card-test.c | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/sound/soc/soc-card-test.c b/sound/soc/soc-card-test.c new file mode 100644 index 000000000000..e4a4b101d743 --- /dev/null +++ b/sound/soc/soc-card-test.c @@ -0,0 +1,186 @@ +// SPDX-License-Identifier: GPL-2.0-only +// Copyright (C) 2024 Cirrus Logic, Inc. and +// Cirrus Logic International Semiconductor Ltd. + +#include <kunit/device.h> +#include <kunit/test.h> +#include <linux/module.h> +#include <sound/control.h> +#include <sound/soc.h> +#include <sound/soc-card.h> + +struct soc_card_test_priv { + struct device *card_dev; + struct snd_soc_card *card; +}; + +static const struct snd_kcontrol_new test_card_controls[] = { + SOC_SINGLE("Fee", SND_SOC_NOPM, 0, 1, 0), + SOC_SINGLE("Fi", SND_SOC_NOPM, 1, 1, 0), + SOC_SINGLE("Fo", SND_SOC_NOPM, 2, 1, 0), + SOC_SINGLE("Fum", SND_SOC_NOPM, 3, 1, 0), + SOC_SINGLE("Left Fee", SND_SOC_NOPM, 4, 1, 0), + SOC_SINGLE("Right Fee", SND_SOC_NOPM, 5, 1, 0), + SOC_SINGLE("Left Fi", SND_SOC_NOPM, 6, 1, 0), + SOC_SINGLE("Right Fi", SND_SOC_NOPM, 7, 1, 0), + SOC_SINGLE("Left Fo", SND_SOC_NOPM, 8, 1, 0), + SOC_SINGLE("Right Fo", SND_SOC_NOPM, 9, 1, 0), + SOC_SINGLE("Left Fum", SND_SOC_NOPM, 10, 1, 0), + SOC_SINGLE("Right Fum", SND_SOC_NOPM, 11, 1, 0), +}; + +static void test_snd_soc_card_get_kcontrol(struct kunit *test) +{ + struct soc_card_test_priv *priv = test->priv; + struct snd_soc_card *card = priv->card; + struct snd_kcontrol *kc; + struct soc_mixer_control *mc; + int i, ret; + + ret = snd_soc_add_card_controls(card, test_card_controls, ARRAY_SIZE(test_card_controls)); + KUNIT_ASSERT_EQ(test, ret, 0); + + /* Look up every control */ + for (i = 0; i < ARRAY_SIZE(test_card_controls); ++i) { + kc = snd_soc_card_get_kcontrol(card, test_card_controls[i].name); + KUNIT_EXPECT_NOT_ERR_OR_NULL_MSG(test, kc, "Failed to find '%s'\n", + test_card_controls[i].name); + if (!kc) + continue; + + /* Test that it is the correct control */ + mc = (struct soc_mixer_control *)kc->private_value; + KUNIT_EXPECT_EQ_MSG(test, mc->shift, i, "For '%s'\n", test_card_controls[i].name); + } + + /* Test some names that should not be found */ + kc = snd_soc_card_get_kcontrol(card, "None"); + KUNIT_EXPECT_NULL(test, kc); + + kc = snd_soc_card_get_kcontrol(card, "Left None"); + KUNIT_EXPECT_NULL(test, kc); + + kc = snd_soc_card_get_kcontrol(card, "Left"); + KUNIT_EXPECT_NULL(test, kc); + + kc = snd_soc_card_get_kcontrol(card, NULL); + KUNIT_EXPECT_NULL(test, kc); +} + +static void test_snd_soc_card_get_kcontrol_locked(struct kunit *test) +{ + struct soc_card_test_priv *priv = test->priv; + struct snd_soc_card *card = priv->card; + struct snd_kcontrol *kc, *kcw; + struct soc_mixer_control *mc; + int i, ret; + + ret = snd_soc_add_card_controls(card, test_card_controls, ARRAY_SIZE(test_card_controls)); + KUNIT_ASSERT_EQ(test, ret, 0); + + /* Look up every control */ + for (i = 0; i < ARRAY_SIZE(test_card_controls); ++i) { + down_read(&card->snd_card->controls_rwsem); + kc = snd_soc_card_get_kcontrol_locked(card, test_card_controls[i].name); + up_read(&card->snd_card->controls_rwsem); + KUNIT_EXPECT_NOT_ERR_OR_NULL_MSG(test, kc, "Failed to find '%s'\n", + test_card_controls[i].name); + if (!kc) + continue; + + /* Test that it is the correct control */ + mc = (struct soc_mixer_control *)kc->private_value; + KUNIT_EXPECT_EQ_MSG(test, mc->shift, i, "For '%s'\n", test_card_controls[i].name); + + down_write(&card->snd_card->controls_rwsem); + kcw = snd_soc_card_get_kcontrol_locked(card, test_card_controls[i].name); + up_write(&card->snd_card->controls_rwsem); + KUNIT_EXPECT_NOT_ERR_OR_NULL_MSG(test, kcw, "Failed to find '%s'\n", + test_card_controls[i].name); + + KUNIT_EXPECT_PTR_EQ(test, kc, kcw); + } + + /* Test some names that should not be found */ + down_read(&card->snd_card->controls_rwsem); + kc = snd_soc_card_get_kcontrol_locked(card, "None"); + up_read(&card->snd_card->controls_rwsem); + KUNIT_EXPECT_NULL(test, kc); + + down_read(&card->snd_card->controls_rwsem); + kc = snd_soc_card_get_kcontrol_locked(card, "Left None"); + up_read(&card->snd_card->controls_rwsem); + KUNIT_EXPECT_NULL(test, kc); + + down_read(&card->snd_card->controls_rwsem); + kc = snd_soc_card_get_kcontrol_locked(card, "Left"); + up_read(&card->snd_card->controls_rwsem); + KUNIT_EXPECT_NULL(test, kc); + + down_read(&card->snd_card->controls_rwsem); + kc = snd_soc_card_get_kcontrol_locked(card, NULL); + up_read(&card->snd_card->controls_rwsem); + KUNIT_EXPECT_NULL(test, kc); +} + +static int soc_card_test_case_init(struct kunit *test) +{ + struct soc_card_test_priv *priv; + int ret; + + priv = kunit_kzalloc(test, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + test->priv = priv; + + priv->card = kunit_kzalloc(test, sizeof(*priv->card), GFP_KERNEL); + if (!priv->card) + return -ENOMEM; + + priv->card_dev = kunit_device_register(test, "sound-soc-card-test"); + priv->card_dev = get_device(priv->card_dev); + if (!priv->card_dev) + return -ENODEV; + + priv->card->name = "soc-card-test"; + priv->card->dev = priv->card_dev; + priv->card->owner = THIS_MODULE; + + ret = snd_soc_register_card(priv->card); + if (ret) { + put_device(priv->card_dev); + return ret; + } + + return 0; +} + +static void soc_card_test_case_exit(struct kunit *test) +{ + struct soc_card_test_priv *priv = test->priv; + + if (priv->card) + snd_soc_unregister_card(priv->card); + + if (priv->card_dev) + put_device(priv->card_dev); +} + +static struct kunit_case soc_card_test_cases[] = { + KUNIT_CASE(test_snd_soc_card_get_kcontrol), + KUNIT_CASE(test_snd_soc_card_get_kcontrol_locked), + {} +}; + +static struct kunit_suite soc_card_test_suite = { + .name = "soc-card", + .test_cases = soc_card_test_cases, + .init = soc_card_test_case_init, + .exit = soc_card_test_case_exit, +}; + +kunit_test_suites(&soc_card_test_suite); + +MODULE_DESCRIPTION("ASoC soc-card KUnit test"); +MODULE_LICENSE("GPL"); |