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Message-Id: <20250908155842.599459-7-rf@opensource.cirrus.com>
Date: Mon, 8 Sep 2025 16:58:42 +0100
From: Richard Fitzgerald <rf@...nsource.cirrus.com>
To: broonie@...nel.org
Cc: linux-sound@...r.kernel.org, linux-kernel@...r.kernel.org,
patches@...nsource.cirrus.com
Subject: [PATCH 6/6] ASoC: cs-amp-lib-test: Add test for getting cal data from HP EFI
Add a test case that cs_amp_get_efi_calibration_data() returns data
when it is in the HP-specific EFI variable.
This uses redirected implementation of cs_amp_get_efi_variable() that
only returns data if the passes name and GUID match the HP EFI variable.
A simple test case installs this function hook and then checks that
calibration data is returned.
Signed-off-by: Richard Fitzgerald <rf@...nsource.cirrus.com>
---
sound/soc/codecs/cs-amp-lib-test.c | 53 ++++++++++++++++++++++++++++++
1 file changed, 53 insertions(+)
diff --git a/sound/soc/codecs/cs-amp-lib-test.c b/sound/soc/codecs/cs-amp-lib-test.c
index c090498cbf78..02fb28edd985 100644
--- a/sound/soc/codecs/cs-amp-lib-test.c
+++ b/sound/soc/codecs/cs-amp-lib-test.c
@@ -220,6 +220,58 @@ static efi_status_t cs_amp_lib_test_get_efi_variable(efi_char16_t *name,
return EFI_SUCCESS;
}
+static efi_status_t cs_amp_lib_test_get_hp_cal_efi_variable(efi_char16_t *name,
+ efi_guid_t *guid,
+ unsigned long *size,
+ void *buf)
+{
+ static const efi_char16_t expected_name[] = L"SmartAmpCalibrationData";
+ static const efi_guid_t expected_guid =
+ EFI_GUID(0x53559579, 0x8753, 0x4f5c, 0x91, 0x30, 0xe8, 0x2a, 0xcf, 0xb8, 0xd8, 0x93);
+ 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);
+
+ if (memcmp(name, expected_name, sizeof(expected_name)) ||
+ efi_guidcmp(*guid, expected_guid))
+ return -EFI_NOT_FOUND;
+
+ 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 from HP variable. */
+static void cs_amp_lib_test_get_hp_efi_cal(struct kunit *test)
+{
+ struct cs_amp_lib_test_priv *priv = test->priv;
+ struct cirrus_amp_cal_data result_data;
+ u64 target_uid;
+ int ret;
+
+ cs_amp_lib_test_init_dummy_cal_blob(test, 2);
+
+ kunit_activate_static_stub(test,
+ cs_amp_test_hooks->get_efi_variable,
+ cs_amp_lib_test_get_hp_cal_efi_variable);
+
+ target_uid = cs_amp_lib_test_get_target_uid(test);
+ ret = cs_amp_get_efi_calibration_data(&priv->amp_dev->dev, 0, 0, &result_data);
+ KUNIT_EXPECT_EQ(test, ret, 0);
+
+ KUNIT_EXPECT_MEMEQ(test, &result_data, &priv->cal_blob->data[0], sizeof(result_data));
+}
+
/* 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)
{
@@ -910,6 +962,7 @@ static struct kunit_case cs_amp_lib_test_cases[] = {
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(cs_amp_lib_test_get_hp_efi_cal),
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,
--
2.39.5
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