Add a KUnit test for the cs-amp-lib library. This has test cases for cs_amp_get_efi_calibration_data() and cs_amp_write_cal_coeffs().
A KUNIT_STATIC_STUB_REDIRECT() has been added to cs_amp_get_efi_variable() and cs_amp_write_cal_coeff() so that the KUnit test can redirect these to test harness functions.
Signed-off-by: Richard Fitzgerald rf@opensource.cirrus.com --- include/sound/cs-amp-lib.h | 14 + sound/soc/codecs/Kconfig | 13 + sound/soc/codecs/Makefile | 2 + sound/soc/codecs/cs-amp-lib-test.c | 715 +++++++++++++++++++++++++++++ sound/soc/codecs/cs-amp-lib.c | 18 +- 5 files changed, 760 insertions(+), 2 deletions(-) create mode 100644 sound/soc/codecs/cs-amp-lib-test.c
diff --git a/include/sound/cs-amp-lib.h b/include/sound/cs-amp-lib.h index 077fe36885b5..f481148735e1 100644 --- a/include/sound/cs-amp-lib.h +++ b/include/sound/cs-amp-lib.h @@ -49,4 +49,18 @@ int cs_amp_write_cal_coeffs(struct cs_dsp *dsp, const struct cirrus_amp_cal_data *data); int cs_amp_get_efi_calibration_data(struct device *dev, u64 target_uid, int amp_index, struct cirrus_amp_cal_data *out_data); + +struct cs_amp_test_hooks { + efi_status_t (*get_efi_variable)(efi_char16_t *name, + efi_guid_t *guid, + unsigned long *size, + void *buf); + + int (*write_cal_coeff)(struct cs_dsp *dsp, + const struct cirrus_amp_cal_controls *controls, + const char *ctl_name, u32 val); +}; + +extern const struct cs_amp_test_hooks * const cs_amp_test_hooks; + #endif /* CS_AMP_LIB_H */ diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index 15f287784d8b..0a6d034b67f1 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -732,6 +732,19 @@ config SND_SOC_CROS_EC_CODEC config SND_SOC_CS_AMP_LIB tristate
+config SND_SOC_CS_AMP_LIB_TEST + tristate "KUnit test for Cirrus Logic cs-amp-lib" + depends on ACPI || COMPILE_TEST || KUNIT + default KUNIT_ALL_TESTS + select SND_SOC_CS_AMP_LIB + help + This builds KUnit tests for the Cirrus Logic common + amplifier library. + For more information on KUnit and unit tests in general, + please refer to the KUnit documentation in + Documentation/dev-tools/kunit/. + If in doubt, say "N". + config SND_SOC_CS35L32 tristate "Cirrus Logic CS35L32 CODEC" depends on I2C diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile index 0fc40640e5d0..7c075539dc47 100644 --- a/sound/soc/codecs/Makefile +++ b/sound/soc/codecs/Makefile @@ -60,6 +60,7 @@ snd-soc-cpcap-objs := cpcap.o snd-soc-cq93vc-objs := cq93vc.o snd-soc-cros-ec-codec-objs := cros_ec_codec.o snd-soc-cs-amp-lib-objs := cs-amp-lib.o +snd-soc-cs-amp-lib-test-objs := cs-amp-lib-test.o snd-soc-cs35l32-objs := cs35l32.o snd-soc-cs35l33-objs := cs35l33.o snd-soc-cs35l34-objs := cs35l34.o @@ -454,6 +455,7 @@ obj-$(CONFIG_SND_SOC_CQ0093VC) += snd-soc-cq93vc.o obj-$(CONFIG_SND_SOC_CPCAP) += snd-soc-cpcap.o obj-$(CONFIG_SND_SOC_CROS_EC_CODEC) += snd-soc-cros-ec-codec.o obj-$(CONFIG_SND_SOC_CS_AMP_LIB) += snd-soc-cs-amp-lib.o +obj-$(CONFIG_SND_SOC_CS_AMP_LIB_TEST) += snd-soc-cs-amp-lib-test.o obj-$(CONFIG_SND_SOC_CS35L32) += snd-soc-cs35l32.o obj-$(CONFIG_SND_SOC_CS35L33) += snd-soc-cs35l33.o obj-$(CONFIG_SND_SOC_CS35L34) += snd-soc-cs35l34.o diff --git a/sound/soc/codecs/cs-amp-lib-test.c b/sound/soc/codecs/cs-amp-lib-test.c new file mode 100644 index 000000000000..be7af2fbe469 --- /dev/null +++ b/sound/soc/codecs/cs-amp-lib-test.c @@ -0,0 +1,715 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// KUnit test for the Cirrus common amplifier library. +// +// Copyright (C) 2024 Cirrus Logic, Inc. and +// Cirrus Logic International Semiconductor Ltd. + +#include <kunit/test.h> +#include <kunit/static_stub.h> +#include <linux/firmware/cirrus/cs_dsp.h> +#include <linux/firmware/cirrus/wmfw.h> +#include <linux/gpio/driver.h> +#include <linux/list.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/random.h> +#include <sound/cs-amp-lib.h> + +#define TYPESAFE_ACTIVATE_STATIC_STUB_PTR(test, fn_ptr, replacement_fn) \ + do { \ + typecheck_fn(typeof(fn_ptr), replacement_fn); \ + __kunit_activate_static_stub(test, fn_ptr, replacement_fn); \ + } while (0) + +struct cs_amp_lib_test_priv { + struct platform_device amp_pdev; + + struct cirrus_amp_efi_data *cal_blob; + struct list_head ctl_write_list; +}; + +struct cs_amp_lib_test_ctl_write_entry { + struct list_head list; + unsigned int value; + char name[16]; +}; + +struct cs_amp_lib_test_param { + int num_amps; + int amp_index; +}; + +static void cs_amp_lib_test_init_dummy_cal_blob(struct kunit *test, int num_amps) +{ + struct cs_amp_lib_test_priv *priv = test->priv; + unsigned int blob_size; + + blob_size = offsetof(struct cirrus_amp_efi_data, data) + + sizeof(struct cirrus_amp_cal_data) * num_amps; + + priv->cal_blob = kunit_kzalloc(test, blob_size, GFP_KERNEL); + KUNIT_ASSERT_NOT_NULL(test, priv->cal_blob); + + priv->cal_blob->size = blob_size; + priv->cal_blob->count = num_amps; + + get_random_bytes(priv->cal_blob->data, sizeof(struct cirrus_amp_cal_data) * num_amps); +} + +static u64 cs_amp_lib_test_get_target_uid(struct kunit *test) +{ + struct cs_amp_lib_test_priv *priv = test->priv; + const struct cs_amp_lib_test_param *param = test->param_value; + u64 uid; + + uid = priv->cal_blob->data[param->amp_index].calTarget[1]; + uid <<= 32; + uid |= priv->cal_blob->data[param->amp_index].calTarget[0]; + + return uid; +} + +/* Redirected get_efi_variable to simulate that the file is too short */ +static efi_status_t cs_amp_lib_test_get_efi_variable_nohead(efi_char16_t *name, + efi_guid_t *guid, + unsigned long *size, + void *buf) +{ + if (!buf) { + *size = offsetof(struct cirrus_amp_efi_data, data) - 1; + return EFI_BUFFER_TOO_SMALL; + } + + return EFI_NOT_FOUND; +} + +/* Should return -EOVERFLOW if the header is larger than the EFI data */ +static void cs_amp_lib_test_cal_data_too_short_test(struct kunit *test) +{ + struct cs_amp_lib_test_priv *priv = test->priv; + struct cirrus_amp_cal_data result_data; + int ret; + + /* Redirect calls to get EFI data */ + TYPESAFE_ACTIVATE_STATIC_STUB_PTR(test, + cs_amp_test_hooks->get_efi_variable, + cs_amp_lib_test_get_efi_variable_nohead); + + ret = cs_amp_get_efi_calibration_data(&priv->amp_pdev.dev, 0, 0, &result_data); + KUNIT_EXPECT_EQ(test, ret, -EOVERFLOW); + + kunit_deactivate_static_stub(test, cs_amp_test_hooks->get_efi_variable); +} + +/* Redirected get_efi_variable to simulate that the count is larger than the file */ +static efi_status_t cs_amp_lib_test_get_efi_variable_bad_count(efi_char16_t *name, + efi_guid_t *guid, + unsigned long *size, + void *buf) +{ + struct kunit *test = kunit_get_current_test(); + struct cs_amp_lib_test_priv *priv = test->priv; + + if (!buf) { + /* + * Return a size that is shorter than required for the + * declared number of entries. + */ + *size = priv->cal_blob->size - 1; + return EFI_BUFFER_TOO_SMALL; + } + + memcpy(buf, priv->cal_blob, priv->cal_blob->size - 1); + + return EFI_SUCCESS; +} + +/* Should return -EOVERFLOW if the entry count is larger than the EFI data */ +static void cs_amp_lib_test_cal_count_too_big_test(struct kunit *test) +{ + struct cs_amp_lib_test_priv *priv = test->priv; + struct cirrus_amp_cal_data result_data; + int ret; + + cs_amp_lib_test_init_dummy_cal_blob(test, 8); + + /* Redirect calls to get EFI data */ + TYPESAFE_ACTIVATE_STATIC_STUB_PTR(test, + cs_amp_test_hooks->get_efi_variable, + cs_amp_lib_test_get_efi_variable_bad_count); + + ret = cs_amp_get_efi_calibration_data(&priv->amp_pdev.dev, 0, 0, &result_data); + KUNIT_EXPECT_EQ(test, ret, -EOVERFLOW); + + kunit_deactivate_static_stub(test, cs_amp_test_hooks->get_efi_variable); +} + +/* Redirected get_efi_variable to simulate that the variable not found */ +static efi_status_t cs_amp_lib_test_get_efi_variable_none(efi_char16_t *name, + efi_guid_t *guid, + unsigned long *size, + void *buf) +{ + return EFI_NOT_FOUND; +} + +/* If EFI doesn't contain a cal data variable the result should be -ENOENT */ +static void cs_amp_lib_test_no_cal_data_test(struct kunit *test) +{ + struct cs_amp_lib_test_priv *priv = test->priv; + struct cirrus_amp_cal_data result_data; + int ret; + + /* Redirect calls to get EFI data */ + TYPESAFE_ACTIVATE_STATIC_STUB_PTR(test, + cs_amp_test_hooks->get_efi_variable, + cs_amp_lib_test_get_efi_variable_none); + + ret = cs_amp_get_efi_calibration_data(&priv->amp_pdev.dev, 0, 0, &result_data); + KUNIT_EXPECT_EQ(test, ret, -ENOENT); + + kunit_deactivate_static_stub(test, cs_amp_test_hooks->get_efi_variable); +} + +/* Redirected get_efi_variable to simulate reading a cal data blob */ +static efi_status_t cs_amp_lib_test_get_efi_variable(efi_char16_t *name, + efi_guid_t *guid, + unsigned long *size, + void *buf) +{ + static const efi_char16_t expected_name[] = L"CirrusSmartAmpCalibrationData"; + static const efi_guid_t expected_guid = + EFI_GUID(0x02f9af02, 0x7734, 0x4233, 0xb4, 0x3d, 0x93, 0xfe, 0x5a, 0xa3, 0x5d, 0xb3); + struct kunit *test = kunit_get_current_test(); + struct cs_amp_lib_test_priv *priv = test->priv; + + KUNIT_EXPECT_NOT_ERR_OR_NULL(test, name); + KUNIT_EXPECT_NOT_ERR_OR_NULL(test, guid); + KUNIT_EXPECT_NOT_ERR_OR_NULL(test, size); + + KUNIT_EXPECT_MEMEQ(test, name, expected_name, sizeof(expected_name)); + KUNIT_EXPECT_MEMEQ(test, guid, &expected_guid, sizeof(expected_guid)); + + if (!buf) { + *size = priv->cal_blob->size; + return EFI_BUFFER_TOO_SMALL; + } + + KUNIT_ASSERT_GE_MSG(test, ksize(buf), priv->cal_blob->size, "Buffer to small"); + + memcpy(buf, priv->cal_blob, priv->cal_blob->size); + + return EFI_SUCCESS; +} + +/* Get cal data block for a given amp, matched by target UID. */ +static void cs_amp_lib_test_get_efi_cal_by_uid_test(struct kunit *test) +{ + struct cs_amp_lib_test_priv *priv = test->priv; + const struct cs_amp_lib_test_param *param = test->param_value; + struct cirrus_amp_cal_data result_data; + u64 target_uid; + int ret; + + cs_amp_lib_test_init_dummy_cal_blob(test, param->num_amps); + + /* Redirect calls to get EFI data */ + TYPESAFE_ACTIVATE_STATIC_STUB_PTR(test, + cs_amp_test_hooks->get_efi_variable, + cs_amp_lib_test_get_efi_variable); + + target_uid = cs_amp_lib_test_get_target_uid(test); + ret = cs_amp_get_efi_calibration_data(&priv->amp_pdev.dev, target_uid, -1, &result_data); + KUNIT_EXPECT_EQ(test, ret, 0); + + kunit_deactivate_static_stub(test, cs_amp_test_hooks->get_efi_variable); + + KUNIT_EXPECT_EQ(test, result_data.calTarget[0], target_uid & 0xFFFFFFFFULL); + KUNIT_EXPECT_EQ(test, result_data.calTarget[1], target_uid >> 32); + KUNIT_EXPECT_EQ(test, result_data.calTime[0], + priv->cal_blob->data[param->amp_index].calTime[0]); + KUNIT_EXPECT_EQ(test, result_data.calTime[1], + priv->cal_blob->data[param->amp_index].calTime[1]); + KUNIT_EXPECT_EQ(test, result_data.calAmbient, + priv->cal_blob->data[param->amp_index].calAmbient); + KUNIT_EXPECT_EQ(test, result_data.calStatus, + priv->cal_blob->data[param->amp_index].calStatus); + KUNIT_EXPECT_EQ(test, result_data.calR, + priv->cal_blob->data[param->amp_index].calR); +} + +/* Get cal data block for a given amp index without checking target UID. */ +static void cs_amp_lib_test_get_efi_cal_by_index_unchecked_test(struct kunit *test) +{ + struct cs_amp_lib_test_priv *priv = test->priv; + const struct cs_amp_lib_test_param *param = test->param_value; + struct cirrus_amp_cal_data result_data; + int ret; + + cs_amp_lib_test_init_dummy_cal_blob(test, param->num_amps); + + /* Redirect calls to get EFI data */ + TYPESAFE_ACTIVATE_STATIC_STUB_PTR(test, + cs_amp_test_hooks->get_efi_variable, + cs_amp_lib_test_get_efi_variable); + + ret = cs_amp_get_efi_calibration_data(&priv->amp_pdev.dev, 0, + param->amp_index, &result_data); + KUNIT_EXPECT_EQ(test, ret, 0); + + kunit_deactivate_static_stub(test, cs_amp_test_hooks->get_efi_variable); + + KUNIT_EXPECT_EQ(test, result_data.calTime[0], + priv->cal_blob->data[param->amp_index].calTime[0]); + KUNIT_EXPECT_EQ(test, result_data.calTime[1], + priv->cal_blob->data[param->amp_index].calTime[1]); + KUNIT_EXPECT_EQ(test, result_data.calAmbient, + priv->cal_blob->data[param->amp_index].calAmbient); + KUNIT_EXPECT_EQ(test, result_data.calStatus, + priv->cal_blob->data[param->amp_index].calStatus); + KUNIT_EXPECT_EQ(test, result_data.calR, + priv->cal_blob->data[param->amp_index].calR); +} + +/* Get cal data block for a given amp index with checked target UID. */ +static void cs_amp_lib_test_get_efi_cal_by_index_checked_test(struct kunit *test) +{ + struct cs_amp_lib_test_priv *priv = test->priv; + const struct cs_amp_lib_test_param *param = test->param_value; + struct cirrus_amp_cal_data result_data; + u64 target_uid; + int ret; + + cs_amp_lib_test_init_dummy_cal_blob(test, param->num_amps); + + /* Redirect calls to get EFI data */ + TYPESAFE_ACTIVATE_STATIC_STUB_PTR(test, + cs_amp_test_hooks->get_efi_variable, + cs_amp_lib_test_get_efi_variable); + + target_uid = cs_amp_lib_test_get_target_uid(test); + ret = cs_amp_get_efi_calibration_data(&priv->amp_pdev.dev, target_uid, + param->amp_index, &result_data); + KUNIT_EXPECT_EQ(test, ret, 0); + + kunit_deactivate_static_stub(test, cs_amp_test_hooks->get_efi_variable); + + KUNIT_EXPECT_EQ(test, result_data.calTime[0], + priv->cal_blob->data[param->amp_index].calTime[0]); + KUNIT_EXPECT_EQ(test, result_data.calTime[1], + priv->cal_blob->data[param->amp_index].calTime[1]); + KUNIT_EXPECT_EQ(test, result_data.calAmbient, + priv->cal_blob->data[param->amp_index].calAmbient); + KUNIT_EXPECT_EQ(test, result_data.calStatus, + priv->cal_blob->data[param->amp_index].calStatus); + KUNIT_EXPECT_EQ(test, result_data.calR, + priv->cal_blob->data[param->amp_index].calR); +} + +/* + * Get cal data block for a given amp index with checked target UID. + * The UID does not match so the result should be -ENOENT. + */ +static void cs_amp_lib_test_get_efi_cal_by_index_uid_mismatch_test(struct kunit *test) +{ + struct cs_amp_lib_test_priv *priv = test->priv; + const struct cs_amp_lib_test_param *param = test->param_value; + struct cirrus_amp_cal_data result_data; + u64 target_uid; + int ret; + + cs_amp_lib_test_init_dummy_cal_blob(test, param->num_amps); + + /* Redirect calls to get EFI data */ + TYPESAFE_ACTIVATE_STATIC_STUB_PTR(test, + cs_amp_test_hooks->get_efi_variable, + cs_amp_lib_test_get_efi_variable); + + /* Get a target UID that won't match the entry */ + target_uid = ~cs_amp_lib_test_get_target_uid(test); + ret = cs_amp_get_efi_calibration_data(&priv->amp_pdev.dev, target_uid, + param->amp_index, &result_data); + KUNIT_EXPECT_EQ(test, ret, -ENOENT); + + kunit_deactivate_static_stub(test, cs_amp_test_hooks->get_efi_variable); +} + +/* + * Get cal data block for a given amp, where the cal data does not + * specify calTarget so the lookup falls back to using the index + */ +static void cs_amp_lib_test_get_efi_cal_by_index_fallback_test(struct kunit *test) +{ + struct cs_amp_lib_test_priv *priv = test->priv; + const struct cs_amp_lib_test_param *param = test->param_value; + struct cirrus_amp_cal_data result_data; + static const u64 bad_target_uid = 0xBADCA100BABABABAULL; + int i, ret; + + cs_amp_lib_test_init_dummy_cal_blob(test, param->num_amps); + + /* Make all the target values zero so they are ignored */ + for (i = 0; i < priv->cal_blob->count; ++i) { + priv->cal_blob->data[i].calTarget[0] = 0; + priv->cal_blob->data[i].calTarget[1] = 0; + } + + /* Redirect calls to get EFI data */ + TYPESAFE_ACTIVATE_STATIC_STUB_PTR(test, + cs_amp_test_hooks->get_efi_variable, + cs_amp_lib_test_get_efi_variable); + + ret = cs_amp_get_efi_calibration_data(&priv->amp_pdev.dev, bad_target_uid, + param->amp_index, &result_data); + KUNIT_EXPECT_EQ(test, ret, 0); + + kunit_deactivate_static_stub(test, cs_amp_test_hooks->get_efi_variable); + + KUNIT_EXPECT_EQ(test, result_data.calTime[0], + priv->cal_blob->data[param->amp_index].calTime[0]); + KUNIT_EXPECT_EQ(test, result_data.calTime[1], + priv->cal_blob->data[param->amp_index].calTime[1]); + KUNIT_EXPECT_EQ(test, result_data.calAmbient, + priv->cal_blob->data[param->amp_index].calAmbient); + KUNIT_EXPECT_EQ(test, result_data.calStatus, + priv->cal_blob->data[param->amp_index].calStatus); + KUNIT_EXPECT_EQ(test, result_data.calR, + priv->cal_blob->data[param->amp_index].calR); +} + +/* + * If the target UID isn't present in the cal data, and there isn't an + * index to fall back do, the result should be -ENOENT. + */ +static void cs_amp_lib_test_get_efi_cal_uid_not_found_noindex_test(struct kunit *test) +{ + struct cs_amp_lib_test_priv *priv = test->priv; + struct cirrus_amp_cal_data result_data; + static const u64 bad_target_uid = 0xBADCA100BABABABAULL; + int i, ret; + + cs_amp_lib_test_init_dummy_cal_blob(test, 8); + + /* Make all the target values != bad_target_uid */ + for (i = 0; i < priv->cal_blob->count; ++i) { + priv->cal_blob->data[i].calTarget[0] &= ~(bad_target_uid & 0xFFFFFFFFULL); + priv->cal_blob->data[i].calTarget[1] &= ~(bad_target_uid >> 32); + } + + /* Redirect calls to get EFI data */ + TYPESAFE_ACTIVATE_STATIC_STUB_PTR(test, + cs_amp_test_hooks->get_efi_variable, + cs_amp_lib_test_get_efi_variable); + + ret = cs_amp_get_efi_calibration_data(&priv->amp_pdev.dev, bad_target_uid, -1, + &result_data); + KUNIT_EXPECT_EQ(test, ret, -ENOENT); + + kunit_deactivate_static_stub(test, cs_amp_test_hooks->get_efi_variable); +} + +/* + * If the target UID isn't present in the cal data, and the index is + * out of range, the result should be -ENOENT. + */ +static void cs_amp_lib_test_get_efi_cal_uid_not_found_index_not_found_test(struct kunit *test) +{ + struct cs_amp_lib_test_priv *priv = test->priv; + struct cirrus_amp_cal_data result_data; + static const u64 bad_target_uid = 0xBADCA100BABABABAULL; + int i, ret; + + cs_amp_lib_test_init_dummy_cal_blob(test, 8); + + /* Make all the target values != bad_target_uid */ + for (i = 0; i < priv->cal_blob->count; ++i) { + priv->cal_blob->data[i].calTarget[0] &= ~(bad_target_uid & 0xFFFFFFFFULL); + priv->cal_blob->data[i].calTarget[1] &= ~(bad_target_uid >> 32); + } + + /* Redirect calls to get EFI data */ + TYPESAFE_ACTIVATE_STATIC_STUB_PTR(test, + cs_amp_test_hooks->get_efi_variable, + cs_amp_lib_test_get_efi_variable); + + ret = cs_amp_get_efi_calibration_data(&priv->amp_pdev.dev, bad_target_uid, 99, + &result_data); + KUNIT_EXPECT_EQ(test, ret, -ENOENT); + + kunit_deactivate_static_stub(test, cs_amp_test_hooks->get_efi_variable); +} + +/* + * If the target UID isn't given, and the index is out of range, the + * result should be -ENOENT. + */ +static void cs_amp_lib_test_get_efi_cal_no_uid_index_not_found_test(struct kunit *test) +{ + struct cs_amp_lib_test_priv *priv = test->priv; + struct cirrus_amp_cal_data result_data; + int ret; + + cs_amp_lib_test_init_dummy_cal_blob(test, 8); + + /* Redirect calls to get EFI data */ + TYPESAFE_ACTIVATE_STATIC_STUB_PTR(test, + cs_amp_test_hooks->get_efi_variable, + cs_amp_lib_test_get_efi_variable); + + ret = cs_amp_get_efi_calibration_data(&priv->amp_pdev.dev, 0, 99, &result_data); + KUNIT_EXPECT_EQ(test, ret, -ENOENT); + + kunit_deactivate_static_stub(test, cs_amp_test_hooks->get_efi_variable); +} + +/* If neither the target UID or the index is given the result should be -ENOENT. */ +static void cs_amp_lib_test_get_efi_cal_no_uid_no_index_test(struct kunit *test) +{ + struct cs_amp_lib_test_priv *priv = test->priv; + struct cirrus_amp_cal_data result_data; + int ret; + + cs_amp_lib_test_init_dummy_cal_blob(test, 8); + + /* Redirect calls to get EFI data */ + TYPESAFE_ACTIVATE_STATIC_STUB_PTR(test, + cs_amp_test_hooks->get_efi_variable, + cs_amp_lib_test_get_efi_variable); + + ret = cs_amp_get_efi_calibration_data(&priv->amp_pdev.dev, 0, -1, &result_data); + KUNIT_EXPECT_EQ(test, ret, -ENOENT); + + kunit_deactivate_static_stub(test, cs_amp_test_hooks->get_efi_variable); +} + +/* + * If the UID is passed as 0 this must not match an entry with an + * unpopulated calTarget + */ +static void cs_amp_lib_test_get_efi_cal_zero_not_matched_test(struct kunit *test) +{ + struct cs_amp_lib_test_priv *priv = test->priv; + struct cirrus_amp_cal_data result_data; + int i, ret; + + cs_amp_lib_test_init_dummy_cal_blob(test, 8); + + /* Make all the target values zero so they are ignored */ + for (i = 0; i < priv->cal_blob->count; ++i) { + priv->cal_blob->data[i].calTarget[0] = 0; + priv->cal_blob->data[i].calTarget[1] = 0; + } + + /* Redirect calls to get EFI data */ + TYPESAFE_ACTIVATE_STATIC_STUB_PTR(test, + cs_amp_test_hooks->get_efi_variable, + cs_amp_lib_test_get_efi_variable); + + ret = cs_amp_get_efi_calibration_data(&priv->amp_pdev.dev, 0, -1, &result_data); + KUNIT_EXPECT_EQ(test, ret, -ENOENT); + + kunit_deactivate_static_stub(test, cs_amp_test_hooks->get_efi_variable); +} + +static const struct cirrus_amp_cal_controls cs_amp_lib_test_calibration_controls = { + .alg_id = 0x9f210, + .mem_region = WMFW_ADSP2_YM, + .ambient = "CAL_AMBIENT", + .calr = "CAL_R", + .status = "CAL_STATUS", + .checksum = "CAL_CHECKSUM", +}; + +static int cs_amp_lib_test_write_cal_coeff(struct cs_dsp *dsp, + const struct cirrus_amp_cal_controls *controls, + const char *ctl_name, u32 val) +{ + struct kunit *test = kunit_get_current_test(); + struct cs_amp_lib_test_priv *priv = test->priv; + struct cs_amp_lib_test_ctl_write_entry *entry; + + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctl_name); + KUNIT_EXPECT_PTR_EQ(test, controls, &cs_amp_lib_test_calibration_controls); + + entry = kunit_kzalloc(test, sizeof(*entry), GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, entry); + + INIT_LIST_HEAD(&entry->list); + strscpy(entry->name, ctl_name, sizeof(entry->name)); + entry->value = val; + + list_add_tail(&entry->list, &priv->ctl_write_list); + + return 0; +} + +static void cs_amp_lib_test_write_cal_data_test(struct kunit *test) +{ + struct cs_amp_lib_test_priv *priv = test->priv; + struct cs_amp_lib_test_ctl_write_entry *entry; + struct cirrus_amp_cal_data data; + struct cs_dsp *dsp; + int ret; + + dsp = kunit_kzalloc(test, sizeof(*dsp), GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dsp); + dsp->dev = &priv->amp_pdev.dev; + + get_random_bytes(&data, sizeof(data)); + + /* Redirect calls to write firmware controls */ + TYPESAFE_ACTIVATE_STATIC_STUB_PTR(test, + cs_amp_test_hooks->write_cal_coeff, + cs_amp_lib_test_write_cal_coeff); + + ret = cs_amp_write_cal_coeffs(dsp, &cs_amp_lib_test_calibration_controls, &data); + KUNIT_EXPECT_EQ(test, ret, 0); + + kunit_deactivate_static_stub(test, cs_amp_test_hooks->write_cal_coeff); + + KUNIT_EXPECT_EQ(test, list_count_nodes(&priv->ctl_write_list), 4); + + /* Checksum control must be written last */ + entry = list_last_entry(&priv->ctl_write_list, typeof(*entry), list); + KUNIT_EXPECT_STREQ(test, entry->name, cs_amp_lib_test_calibration_controls.checksum); + KUNIT_EXPECT_EQ(test, entry->value, data.calR + 1); + list_del(&entry->list); + + entry = list_first_entry(&priv->ctl_write_list, typeof(*entry), list); + KUNIT_EXPECT_STREQ(test, entry->name, cs_amp_lib_test_calibration_controls.ambient); + KUNIT_EXPECT_EQ(test, entry->value, data.calAmbient); + list_del(&entry->list); + + entry = list_first_entry(&priv->ctl_write_list, typeof(*entry), list); + KUNIT_EXPECT_STREQ(test, entry->name, cs_amp_lib_test_calibration_controls.calr); + KUNIT_EXPECT_EQ(test, entry->value, data.calR); + list_del(&entry->list); + + entry = list_first_entry(&priv->ctl_write_list, typeof(*entry), list); + KUNIT_EXPECT_STREQ(test, entry->name, cs_amp_lib_test_calibration_controls.status); + KUNIT_EXPECT_EQ(test, entry->value, data.calStatus); +} + +static void cs_amp_lib_test_dev_release(struct device *dev) +{ +} + +static int cs_amp_lib_test_case_init(struct kunit *test) +{ + struct cs_amp_lib_test_priv *priv; + int ret; + + KUNIT_ASSERT_NOT_NULL(test, cs_amp_test_hooks); + + priv = kunit_kzalloc(test, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + test->priv = priv; + INIT_LIST_HEAD(&priv->ctl_write_list); + + /* Create dummy amp driver dev */ + priv->amp_pdev.name = "cs_amp_lib_test_drv"; + priv->amp_pdev.id = -1; + priv->amp_pdev.dev.release = cs_amp_lib_test_dev_release; + ret = platform_device_register(&priv->amp_pdev); + KUNIT_ASSERT_GE_MSG(test, ret, 0, "Failed to register amp platform device\n"); + + return 0; +} + +static void cs_amp_lib_test_case_exit(struct kunit *test) +{ + struct cs_amp_lib_test_priv *priv = test->priv; + + if (priv->amp_pdev.name) + platform_device_unregister(&priv->amp_pdev); +} + +static const struct cs_amp_lib_test_param cs_amp_lib_test_get_cal_param_cases[] = { + { .num_amps = 2, .amp_index = 0 }, + { .num_amps = 2, .amp_index = 1 }, + + { .num_amps = 3, .amp_index = 0 }, + { .num_amps = 3, .amp_index = 1 }, + { .num_amps = 3, .amp_index = 2 }, + + { .num_amps = 4, .amp_index = 0 }, + { .num_amps = 4, .amp_index = 1 }, + { .num_amps = 4, .amp_index = 2 }, + { .num_amps = 4, .amp_index = 3 }, + + { .num_amps = 5, .amp_index = 0 }, + { .num_amps = 5, .amp_index = 1 }, + { .num_amps = 5, .amp_index = 2 }, + { .num_amps = 5, .amp_index = 3 }, + { .num_amps = 5, .amp_index = 4 }, + + { .num_amps = 6, .amp_index = 0 }, + { .num_amps = 6, .amp_index = 1 }, + { .num_amps = 6, .amp_index = 2 }, + { .num_amps = 6, .amp_index = 3 }, + { .num_amps = 6, .amp_index = 4 }, + { .num_amps = 6, .amp_index = 5 }, + + { .num_amps = 8, .amp_index = 0 }, + { .num_amps = 8, .amp_index = 1 }, + { .num_amps = 8, .amp_index = 2 }, + { .num_amps = 8, .amp_index = 3 }, + { .num_amps = 8, .amp_index = 4 }, + { .num_amps = 8, .amp_index = 5 }, + { .num_amps = 8, .amp_index = 6 }, + { .num_amps = 8, .amp_index = 7 }, +}; + +static void cs_amp_lib_test_get_cal_param_desc(const struct cs_amp_lib_test_param *param, + char *desc) +{ + snprintf(desc, KUNIT_PARAM_DESC_SIZE, "num_amps:%d amp_index:%d", + param->num_amps, param->amp_index); +} + +KUNIT_ARRAY_PARAM(cs_amp_lib_test_get_cal, cs_amp_lib_test_get_cal_param_cases, + cs_amp_lib_test_get_cal_param_desc); + +static struct kunit_case cs_amp_lib_test_cases[] = { + /* Tests for getting calibration data from EFI */ + KUNIT_CASE(cs_amp_lib_test_cal_data_too_short_test), + KUNIT_CASE(cs_amp_lib_test_cal_count_too_big_test), + KUNIT_CASE(cs_amp_lib_test_no_cal_data_test), + KUNIT_CASE(cs_amp_lib_test_get_efi_cal_uid_not_found_noindex_test), + KUNIT_CASE(cs_amp_lib_test_get_efi_cal_uid_not_found_index_not_found_test), + KUNIT_CASE(cs_amp_lib_test_get_efi_cal_no_uid_index_not_found_test), + KUNIT_CASE(cs_amp_lib_test_get_efi_cal_no_uid_no_index_test), + KUNIT_CASE(cs_amp_lib_test_get_efi_cal_zero_not_matched_test), + KUNIT_CASE_PARAM(cs_amp_lib_test_get_efi_cal_by_uid_test, + cs_amp_lib_test_get_cal_gen_params), + KUNIT_CASE_PARAM(cs_amp_lib_test_get_efi_cal_by_index_unchecked_test, + cs_amp_lib_test_get_cal_gen_params), + KUNIT_CASE_PARAM(cs_amp_lib_test_get_efi_cal_by_index_checked_test, + cs_amp_lib_test_get_cal_gen_params), + KUNIT_CASE_PARAM(cs_amp_lib_test_get_efi_cal_by_index_uid_mismatch_test, + cs_amp_lib_test_get_cal_gen_params), + KUNIT_CASE_PARAM(cs_amp_lib_test_get_efi_cal_by_index_fallback_test, + cs_amp_lib_test_get_cal_gen_params), + + /* Tests for writing calibration data */ + KUNIT_CASE(cs_amp_lib_test_write_cal_data_test), + + { } /* terminator */ +}; + +static struct kunit_suite cs_amp_lib_test_suite = { + .name = "snd-soc-cs-amp-lib-test", + .init = cs_amp_lib_test_case_init, + .exit = cs_amp_lib_test_case_exit, + .test_cases = cs_amp_lib_test_cases, +}; + +kunit_test_suite(cs_amp_lib_test_suite); + +MODULE_IMPORT_NS(SND_SOC_CS_AMP_LIB); +MODULE_DESCRIPTION("KUnit test for Cirrus Logic amplifier library"); +MODULE_AUTHOR("Richard Fitzgerald rf@opensource.cirrus.com"); +MODULE_LICENSE("GPL"); diff --git a/sound/soc/codecs/cs-amp-lib.c b/sound/soc/codecs/cs-amp-lib.c index 4e2e5157a73f..01ef4db5407d 100644 --- a/sound/soc/codecs/cs-amp-lib.c +++ b/sound/soc/codecs/cs-amp-lib.c @@ -6,6 +6,7 @@ // Cirrus Logic International Semiconductor Ltd.
#include <asm/byteorder.h> +#include <kunit/static_stub.h> #include <linux/dev_printk.h> #include <linux/efi.h> #include <linux/firmware/cirrus/cs_dsp.h> @@ -27,6 +28,8 @@ static int cs_amp_write_cal_coeff(struct cs_dsp *dsp, __be32 beval = cpu_to_be32(val); int ret;
+ KUNIT_STATIC_STUB_REDIRECT(cs_amp_write_cal_coeff, dsp, controls, ctl_name, val); + if (IS_REACHABLE(CONFIG_FW_CS_DSP)) { mutex_lock(&dsp->pwr_lock); cs_ctl = cs_dsp_get_ctl(dsp, ctl_name, controls->mem_region, controls->alg_id); @@ -84,7 +87,7 @@ int cs_amp_write_cal_coeffs(struct cs_dsp *dsp, const struct cirrus_amp_cal_controls *controls, const struct cirrus_amp_cal_data *data) { - if (IS_REACHABLE(CONFIG_FW_CS_DSP)) + if (IS_REACHABLE(CONFIG_FW_CS_DSP) || IS_ENABLED(CONFIG_SND_SOC_CS_AMP_LIB_TEST)) return _cs_amp_write_cal_coeffs(dsp, controls, data); else return -ENODEV; @@ -98,6 +101,8 @@ static efi_status_t cs_amp_get_efi_variable(efi_char16_t *name, { u32 attr;
+ KUNIT_STATIC_STUB_REDIRECT(cs_amp_get_efi_variable, name, guid, size, buf); + if (IS_ENABLED(CONFIG_EFI)) return efi.get_variable(name, guid, &attr, size, buf);
@@ -250,13 +255,22 @@ static int _cs_amp_get_efi_calibration_data(struct device *dev, u64 target_uid, int cs_amp_get_efi_calibration_data(struct device *dev, u64 target_uid, int amp_index, struct cirrus_amp_cal_data *out_data) { - if (IS_ENABLED(CONFIG_EFI)) + if (IS_ENABLED(CONFIG_EFI) || IS_ENABLED(CONFIG_SND_SOC_CS_AMP_LIB_TEST)) return _cs_amp_get_efi_calibration_data(dev, target_uid, amp_index, out_data); else return -ENOENT; } EXPORT_SYMBOL_NS_GPL(cs_amp_get_efi_calibration_data, SND_SOC_CS_AMP_LIB);
+static const struct cs_amp_test_hooks cs_amp_test_hook_ptrs = { + .get_efi_variable = cs_amp_get_efi_variable, + .write_cal_coeff = cs_amp_write_cal_coeff, +}; + +const struct cs_amp_test_hooks * const cs_amp_test_hooks = + PTR_IF(IS_ENABLED(CONFIG_SND_SOC_CS_AMP_LIB_TEST), &cs_amp_test_hook_ptrs); +EXPORT_SYMBOL_NS_GPL(cs_amp_test_hooks, SND_SOC_CS_AMP_LIB); + MODULE_DESCRIPTION("Cirrus Logic amplifier library"); MODULE_AUTHOR("Richard Fitzgerald rf@opensource.cirrus.com"); MODULE_LICENSE("GPL");