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Diffstat (limited to 'sound/pci/hda/cirrus_scodec_test.c')
-rw-r--r--sound/pci/hda/cirrus_scodec_test.c332
1 files changed, 0 insertions, 332 deletions
diff --git a/sound/pci/hda/cirrus_scodec_test.c b/sound/pci/hda/cirrus_scodec_test.c
deleted file mode 100644
index 93b9cbf1f08a..000000000000
--- a/sound/pci/hda/cirrus_scodec_test.c
+++ /dev/null
@@ -1,332 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-//
-// KUnit test for the Cirrus side-codec library.
-//
-// Copyright (C) 2023 Cirrus Logic, Inc. and
-// Cirrus Logic International Semiconductor Ltd.
-
-#include <kunit/platform_device.h>
-#include <kunit/resource.h>
-#include <kunit/test.h>
-#include <linux/device.h>
-#include <linux/device/faux.h>
-#include <linux/gpio/driver.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-
-#include "cirrus_scodec.h"
-
-KUNIT_DEFINE_ACTION_WRAPPER(faux_device_destroy_wrapper, faux_device_destroy,
- struct faux_device *)
-KUNIT_DEFINE_ACTION_WRAPPER(device_remove_software_node_wrapper,
- device_remove_software_node,
- struct device *)
-
-struct cirrus_scodec_test_gpio {
- unsigned int pin_state;
- struct gpio_chip chip;
-};
-
-struct cirrus_scodec_test_priv {
- struct faux_device *amp_dev;
- struct platform_device *gpio_pdev;
- struct cirrus_scodec_test_gpio *gpio_priv;
-};
-
-static int cirrus_scodec_test_gpio_get_direction(struct gpio_chip *chip,
- unsigned int offset)
-{
- return GPIO_LINE_DIRECTION_IN;
-}
-
-static int cirrus_scodec_test_gpio_direction_in(struct gpio_chip *chip,
- unsigned int offset)
-{
- return 0;
-}
-
-static int cirrus_scodec_test_gpio_get(struct gpio_chip *chip, unsigned int offset)
-{
- struct cirrus_scodec_test_gpio *gpio_priv = gpiochip_get_data(chip);
-
- return !!(gpio_priv->pin_state & BIT(offset));
-}
-
-static int cirrus_scodec_test_gpio_direction_out(struct gpio_chip *chip,
- unsigned int offset, int value)
-{
- return -EOPNOTSUPP;
-}
-
-static int cirrus_scodec_test_gpio_set(struct gpio_chip *chip,
- unsigned int offset, int value)
-{
- return -EOPNOTSUPP;
-}
-
-static int cirrus_scodec_test_gpio_set_config(struct gpio_chip *gc,
- unsigned int offset,
- unsigned long config)
-{
- switch (pinconf_to_config_param(config)) {
- case PIN_CONFIG_OUTPUT:
- case PIN_CONFIG_OUTPUT_ENABLE:
- return -EOPNOTSUPP;
- default:
- return 0;
- }
-}
-
-static const struct gpio_chip cirrus_scodec_test_gpio_chip = {
- .label = "cirrus_scodec_test_gpio",
- .owner = THIS_MODULE,
- .request = gpiochip_generic_request,
- .free = gpiochip_generic_free,
- .get_direction = cirrus_scodec_test_gpio_get_direction,
- .direction_input = cirrus_scodec_test_gpio_direction_in,
- .get = cirrus_scodec_test_gpio_get,
- .direction_output = cirrus_scodec_test_gpio_direction_out,
- .set_rv = cirrus_scodec_test_gpio_set,
- .set_config = cirrus_scodec_test_gpio_set_config,
- .base = -1,
- .ngpio = 32,
-};
-
-static int cirrus_scodec_test_gpio_probe(struct platform_device *pdev)
-{
- struct cirrus_scodec_test_gpio *gpio_priv;
- int ret;
-
- gpio_priv = devm_kzalloc(&pdev->dev, sizeof(*gpio_priv), GFP_KERNEL);
- if (!gpio_priv)
- return -ENOMEM;
-
- /* GPIO core modifies our struct gpio_chip so use a copy */
- gpio_priv->chip = cirrus_scodec_test_gpio_chip;
- ret = devm_gpiochip_add_data(&pdev->dev, &gpio_priv->chip, gpio_priv);
- if (ret)
- return dev_err_probe(&pdev->dev, ret, "Failed to add gpiochip\n");
-
- dev_set_drvdata(&pdev->dev, gpio_priv);
-
- return 0;
-}
-
-static struct platform_driver cirrus_scodec_test_gpio_driver = {
- .driver.name = "cirrus_scodec_test_gpio_drv",
- .driver.owner = THIS_MODULE,
- .probe = cirrus_scodec_test_gpio_probe,
-};
-
-/* software_node referencing the gpio driver */
-static const struct software_node cirrus_scodec_test_gpio_swnode = {
- .name = "cirrus_scodec_test_gpio",
-};
-
-static void cirrus_scodec_test_create_gpio(struct kunit *test)
-{
- struct cirrus_scodec_test_priv *priv = test->priv;
-
- KUNIT_ASSERT_EQ(test, 0,
- kunit_platform_driver_register(test, &cirrus_scodec_test_gpio_driver));
-
- priv->gpio_pdev = kunit_platform_device_alloc(test,
- cirrus_scodec_test_gpio_driver.driver.name,
- PLATFORM_DEVID_NONE);
- KUNIT_ASSERT_NOT_NULL(test, priv->gpio_pdev);
-
- KUNIT_ASSERT_EQ(test, 0, device_add_software_node(&priv->gpio_pdev->dev,
- &cirrus_scodec_test_gpio_swnode));
- KUNIT_ASSERT_EQ(test, 0, kunit_add_action_or_reset(test,
- device_remove_software_node_wrapper,
- &priv->gpio_pdev->dev));
-
- KUNIT_ASSERT_EQ(test, 0, kunit_platform_device_add(test, priv->gpio_pdev));
-
- priv->gpio_priv = dev_get_drvdata(&priv->gpio_pdev->dev);
- KUNIT_ASSERT_NOT_NULL(test, priv->gpio_priv);
-}
-
-static void cirrus_scodec_test_set_gpio_ref_arg(struct software_node_ref_args *arg,
- int gpio_num)
-{
- struct software_node_ref_args template =
- SOFTWARE_NODE_REFERENCE(&cirrus_scodec_test_gpio_swnode, gpio_num, 0);
-
- *arg = template;
-}
-
-static int cirrus_scodec_test_set_spkid_swnode(struct kunit *test,
- struct device *dev,
- struct software_node_ref_args *args,
- int num_args)
-{
- const struct property_entry props_template[] = {
- PROPERTY_ENTRY_REF_ARRAY_LEN("spk-id-gpios", args, num_args),
- { }
- };
- struct property_entry *props;
- struct software_node *node;
-
- node = kunit_kzalloc(test, sizeof(*node), GFP_KERNEL);
- if (!node)
- return -ENOMEM;
-
- props = kunit_kzalloc(test, sizeof(props_template), GFP_KERNEL);
- if (!props)
- return -ENOMEM;
-
- memcpy(props, props_template, sizeof(props_template));
- node->properties = props;
-
- return device_add_software_node(dev, node);
-}
-
-struct cirrus_scodec_test_spkid_param {
- int num_amps;
- int gpios_per_amp;
- int num_amps_sharing;
-};
-
-static void cirrus_scodec_test_spkid_parse(struct kunit *test)
-{
- struct cirrus_scodec_test_priv *priv = test->priv;
- const struct cirrus_scodec_test_spkid_param *param = test->param_value;
- int num_spk_id_refs = param->num_amps * param->gpios_per_amp;
- struct software_node_ref_args *refs;
- struct device *dev = &priv->amp_dev->dev;
- unsigned int v;
- int i, ret;
-
- refs = kunit_kcalloc(test, num_spk_id_refs, sizeof(*refs), GFP_KERNEL);
- KUNIT_ASSERT_NOT_NULL(test, refs);
-
- for (i = 0, v = 0; i < num_spk_id_refs; ) {
- cirrus_scodec_test_set_gpio_ref_arg(&refs[i++], v++);
-
- /*
- * If amps are sharing GPIOs repeat the last set of
- * GPIOs until we've done that number of amps.
- * We have done all GPIOs for an amp when i is a multiple
- * of gpios_per_amp.
- * We have done all amps sharing the same GPIOs when i is
- * a multiple of (gpios_per_amp * num_amps_sharing).
- */
- if (!(i % param->gpios_per_amp) &&
- (i % (param->gpios_per_amp * param->num_amps_sharing)))
- v -= param->gpios_per_amp;
- }
-
- ret = cirrus_scodec_test_set_spkid_swnode(test, dev, refs, num_spk_id_refs);
- KUNIT_EXPECT_EQ_MSG(test, ret, 0, "Failed to add swnode\n");
-
- for (i = 0; i < param->num_amps; ++i) {
- for (v = 0; v < (1 << param->gpios_per_amp); ++v) {
- /* Set only the GPIO bits used by this amp */
- priv->gpio_priv->pin_state =
- v << (param->gpios_per_amp * (i / param->num_amps_sharing));
-
- ret = cirrus_scodec_get_speaker_id(dev, i, param->num_amps, -1);
- KUNIT_EXPECT_EQ_MSG(test, ret, v,
- "get_speaker_id failed amp:%d pin_state:%#x\n",
- i, priv->gpio_priv->pin_state);
- }
- }
-}
-
-static void cirrus_scodec_test_no_spkid(struct kunit *test)
-{
- struct cirrus_scodec_test_priv *priv = test->priv;
- struct device *dev = &priv->amp_dev->dev;
- int ret;
-
- ret = cirrus_scodec_get_speaker_id(dev, 0, 4, -1);
- KUNIT_EXPECT_EQ(test, ret, -ENOENT);
-}
-
-static int cirrus_scodec_test_case_init(struct kunit *test)
-{
- struct cirrus_scodec_test_priv *priv;
-
- priv = kunit_kzalloc(test, sizeof(*priv), GFP_KERNEL);
- if (!priv)
- return -ENOMEM;
-
- test->priv = priv;
-
- /* Create dummy GPIO */
- cirrus_scodec_test_create_gpio(test);
-
- /* Create dummy amp driver dev */
- priv->amp_dev = faux_device_create("cirrus_scodec_test_amp_drv", NULL, NULL);
- KUNIT_ASSERT_NOT_NULL(test, priv->amp_dev);
- KUNIT_ASSERT_EQ(test, 0, kunit_add_action_or_reset(test,
- faux_device_destroy_wrapper,
- priv->amp_dev));
-
- return 0;
-}
-
-static const struct cirrus_scodec_test_spkid_param cirrus_scodec_test_spkid_param_cases[] = {
- { .num_amps = 2, .gpios_per_amp = 1, .num_amps_sharing = 1 },
- { .num_amps = 2, .gpios_per_amp = 2, .num_amps_sharing = 1 },
- { .num_amps = 2, .gpios_per_amp = 3, .num_amps_sharing = 1 },
- { .num_amps = 2, .gpios_per_amp = 4, .num_amps_sharing = 1 },
- { .num_amps = 3, .gpios_per_amp = 1, .num_amps_sharing = 1 },
- { .num_amps = 3, .gpios_per_amp = 2, .num_amps_sharing = 1 },
- { .num_amps = 3, .gpios_per_amp = 3, .num_amps_sharing = 1 },
- { .num_amps = 3, .gpios_per_amp = 4, .num_amps_sharing = 1 },
- { .num_amps = 4, .gpios_per_amp = 1, .num_amps_sharing = 1 },
- { .num_amps = 4, .gpios_per_amp = 2, .num_amps_sharing = 1 },
- { .num_amps = 4, .gpios_per_amp = 3, .num_amps_sharing = 1 },
- { .num_amps = 4, .gpios_per_amp = 4, .num_amps_sharing = 1 },
-
- /* Same GPIO shared by all amps */
- { .num_amps = 2, .gpios_per_amp = 1, .num_amps_sharing = 2 },
- { .num_amps = 2, .gpios_per_amp = 2, .num_amps_sharing = 2 },
- { .num_amps = 2, .gpios_per_amp = 3, .num_amps_sharing = 2 },
- { .num_amps = 2, .gpios_per_amp = 4, .num_amps_sharing = 2 },
- { .num_amps = 3, .gpios_per_amp = 1, .num_amps_sharing = 3 },
- { .num_amps = 3, .gpios_per_amp = 2, .num_amps_sharing = 3 },
- { .num_amps = 3, .gpios_per_amp = 3, .num_amps_sharing = 3 },
- { .num_amps = 3, .gpios_per_amp = 4, .num_amps_sharing = 3 },
- { .num_amps = 4, .gpios_per_amp = 1, .num_amps_sharing = 4 },
- { .num_amps = 4, .gpios_per_amp = 2, .num_amps_sharing = 4 },
- { .num_amps = 4, .gpios_per_amp = 3, .num_amps_sharing = 4 },
- { .num_amps = 4, .gpios_per_amp = 4, .num_amps_sharing = 4 },
-
- /* Two sets of shared GPIOs */
- { .num_amps = 4, .gpios_per_amp = 1, .num_amps_sharing = 2 },
- { .num_amps = 4, .gpios_per_amp = 2, .num_amps_sharing = 2 },
- { .num_amps = 4, .gpios_per_amp = 3, .num_amps_sharing = 2 },
- { .num_amps = 4, .gpios_per_amp = 4, .num_amps_sharing = 2 },
-};
-
-static void cirrus_scodec_test_spkid_param_desc(const struct cirrus_scodec_test_spkid_param *param,
- char *desc)
-{
- snprintf(desc, KUNIT_PARAM_DESC_SIZE, "amps:%d gpios_per_amp:%d num_amps_sharing:%d",
- param->num_amps, param->gpios_per_amp, param->num_amps_sharing);
-}
-
-KUNIT_ARRAY_PARAM(cirrus_scodec_test_spkid, cirrus_scodec_test_spkid_param_cases,
- cirrus_scodec_test_spkid_param_desc);
-
-static struct kunit_case cirrus_scodec_test_cases[] = {
- KUNIT_CASE_PARAM(cirrus_scodec_test_spkid_parse, cirrus_scodec_test_spkid_gen_params),
- KUNIT_CASE(cirrus_scodec_test_no_spkid),
- { } /* terminator */
-};
-
-static struct kunit_suite cirrus_scodec_test_suite = {
- .name = "snd-hda-scodec-cs35l56-test",
- .init = cirrus_scodec_test_case_init,
- .test_cases = cirrus_scodec_test_cases,
-};
-
-kunit_test_suite(cirrus_scodec_test_suite);
-
-MODULE_IMPORT_NS("SND_HDA_CIRRUS_SCODEC");
-MODULE_DESCRIPTION("KUnit test for the Cirrus side-codec library");
-MODULE_AUTHOR("Richard Fitzgerald <rf@opensource.cirrus.com>");
-MODULE_LICENSE("GPL");
generated by cgit (git 2.34.1) at 2025-07-30 20:15:26 +0000