* [PATCH 4/9] ASoC: cs-amp-lib: Add helpers for factory calibration data
2024-02-21 15:04 [PATCH 0/9] ALSA: cs35l56: Apply calibration from EFI Richard Fitzgerald
` (2 preceding siblings ...)
2024-02-21 15:05 ` [PATCH 3/9] ASoC: wm_adsp: Add wm_adsp_start() and wm_adsp_stop() Richard Fitzgerald
@ 2024-02-21 15:05 ` Richard Fitzgerald
2024-02-21 15:05 ` [PATCH 5/9] ASoC: cs35l56: Add helper functions for amp calibration Richard Fitzgerald
` (7 subsequent siblings)
11 siblings, 0 replies; 14+ messages in thread
From: Richard Fitzgerald @ 2024-02-21 15:05 UTC (permalink / raw)
To: broonie, tiwai
Cc: linux-sound, alsa-devel, linux-kernel, patches,
Richard Fitzgerald
Create a new library for code that is used by multiple Cirrus Logic
amps. This initially implements extracting amp calibration data
from EFI and writing it to firmware controls.
During factory calibration of built-in speakers the firmware
calibration constants are stored in an EFI file. The file contains
an array of calibration constants for each of the speakers.
cs_amp_get_calibration_data() searches for an entry matching the
requested UID stamp, otherwise by array index. If the data is found in
EFI the constants for that speaker are copied back to the caller.
If EFI is not enabled, the cs_amp_get_calibration_data() implementation
will compile to simply return -ENOENT and the linker can drop the code.
The code to write calibration controls uses wm_adsp. Not all drivers
use wm_adsp (notably, HDA drivers do not) so cs-amp-lib does not force
building of wm_adsp. Instead, the code will compile away the call to
wm_adsp_write_ctl() if wm_adsp is not reachable.
This strategy of conditional code allows cs-amp-lib to be shared by
multiple drivers without forcing inclusion of other modules that might
be unnecessary.
The calls to efi.get_variable() and wm_adsp_write_ctl() are in
small wrapper functions. This is so that a KUNIT_STATIC_STUB_REDIRECT
can be added in a future patch to redirect these calls to replacement
functions for KUnit testing.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
---
include/sound/cs-amp-lib.h | 52 +++++++
sound/soc/codecs/Kconfig | 3 +
sound/soc/codecs/Makefile | 2 +
sound/soc/codecs/cs-amp-lib.c | 256 ++++++++++++++++++++++++++++++++++
4 files changed, 313 insertions(+)
create mode 100644 include/sound/cs-amp-lib.h
create mode 100644 sound/soc/codecs/cs-amp-lib.c
diff --git a/include/sound/cs-amp-lib.h b/include/sound/cs-amp-lib.h
new file mode 100644
index 000000000000..35f7bd848276
--- /dev/null
+++ b/include/sound/cs-amp-lib.h
@@ -0,0 +1,52 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2024 Cirrus Logic, Inc. and
+ * Cirrus Logic International Semiconductor Ltd.
+ */
+
+#ifndef CS_AMP_LIB_H
+#define CS_AMP_LIB_H
+
+#include <linux/efi.h>
+#include <linux/types.h>
+
+struct wm_adsp;
+
+struct cirrus_amp_cal_data {
+ u32 calTarget[2];
+ u32 calTime[2];
+ s8 calAmbient;
+ u8 calStatus;
+ u16 calR;
+} __packed;
+
+struct cirrus_amp_efi_data {
+ u32 size;
+ u32 count;
+ struct cirrus_amp_cal_data data[];
+} __packed;
+
+/**
+ * struct cirrus_amp_cal_controls - definition of firmware calibration controls
+ * @alg_id: ID of algorithm containing the controls.
+ * @mem_region: DSP memory region containing the controls.
+ * @ambient: Name of control for calAmbient value.
+ * @calr: Name of control for calR value.
+ * @status: Name of control for calStatus value.
+ * @checksum: Name of control for checksum value.
+ */
+struct cirrus_amp_cal_controls {
+ unsigned int alg_id;
+ int mem_region;
+ const char *ambient;
+ const char *calr;
+ const char *status;
+ const char *checksum;
+};
+
+int cs_amp_write_cal_coeffs(struct wm_adsp *dsp,
+ const struct cirrus_amp_cal_controls *controls,
+ 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);
+#endif /* CS_AMP_LIB_H */
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index 027d9da85251..8356bd1256d8 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -729,6 +729,9 @@ config SND_SOC_CROS_EC_CODEC
If you say yes here you will get support for the
ChromeOS Embedded Controller's Audio Codec.
+config SND_SOC_CS_AMP_LIB
+ tristate
+
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 4080646b2dd6..0fc40640e5d0 100644
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -59,6 +59,7 @@ snd-soc-chv3-codec-objs := chv3-codec.o
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-cs35l32-objs := cs35l32.o
snd-soc-cs35l33-objs := cs35l33.o
snd-soc-cs35l34-objs := cs35l34.o
@@ -452,6 +453,7 @@ obj-$(CONFIG_SND_SOC_CHV3_CODEC) += snd-soc-chv3-codec.o
obj-$(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_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.c b/sound/soc/codecs/cs-amp-lib.c
new file mode 100644
index 000000000000..0e1249342a78
--- /dev/null
+++ b/sound/soc/codecs/cs-amp-lib.c
@@ -0,0 +1,256 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Common code for Cirrus Logic Smart Amplifiers
+//
+// Copyright (C) 2024 Cirrus Logic, Inc. and
+// Cirrus Logic International Semiconductor Ltd.
+
+#include <asm/byteorder.h>
+#include <linux/dev_printk.h>
+#include <linux/efi.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <sound/cs-amp-lib.h>
+#include "wm_adsp.h"
+
+#define CS_AMP_CAL_GUID \
+ EFI_GUID(0x02f9af02, 0x7734, 0x4233, 0xb4, 0x3d, 0x93, 0xfe, 0x5a, 0xa3, 0x5d, 0xb3)
+
+#define CS_AMP_CAL_NAME L"CirrusSmartAmpCalibrationData"
+
+static int cs_amp_write_cal_coeff(struct wm_adsp *dsp,
+ const struct cirrus_amp_cal_controls *controls,
+ const char *ctl_name, u32 val)
+{
+ __be32 beval = cpu_to_be32(val);
+ int ret;
+
+ if (IS_REACHABLE(CONFIG_SND_SOC_WM_ADSP)) {
+ ret = wm_adsp_write_ctl(dsp, ctl_name, controls->mem_region,
+ controls->alg_id, &beval, sizeof(beval));
+ if (ret)
+ dev_err(dsp->cs_dsp.dev, "Failed to write to '%s': %d\n", ctl_name, ret);
+
+ return ret;
+ }
+
+ return -ENODEV;
+}
+
+static int _cs_amp_write_cal_coeffs(struct wm_adsp *dsp,
+ const struct cirrus_amp_cal_controls *controls,
+ const struct cirrus_amp_cal_data *data)
+{
+ int ret;
+
+ dev_dbg(dsp->cs_dsp.dev, "Calibration: Ambient=%#x, Status=%#x, CalR=%d\n",
+ data->calAmbient, data->calStatus, data->calR);
+
+ ret = cs_amp_write_cal_coeff(dsp, controls, controls->ambient, data->calAmbient);
+ if (ret)
+ return ret;
+
+ ret = cs_amp_write_cal_coeff(dsp, controls, controls->calr, data->calR);
+ if (ret)
+ return ret;
+
+ ret = cs_amp_write_cal_coeff(dsp, controls, controls->status, data->calStatus);
+ if (ret)
+ return ret;
+
+ ret = cs_amp_write_cal_coeff(dsp, controls, controls->checksum, data->calR + 1);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+/**
+ * cs_amp_write_cal_coeffs - Write calibration data to firmware controls.
+ * @dsp: Pointer to struct wm_adsp.
+ * @controls: Pointer to definition of firmware controls to be written.
+ * @data: Pointer to calibration data.
+ *
+ * Returns: 0 on success, else negative error value.
+ */
+int cs_amp_write_cal_coeffs(struct wm_adsp *dsp,
+ const struct cirrus_amp_cal_controls *controls,
+ const struct cirrus_amp_cal_data *data)
+{
+ if (IS_REACHABLE(CONFIG_SND_SOC_WM_ADSP))
+ return _cs_amp_write_cal_coeffs(dsp, controls, data);
+ else
+ return -ENODEV;
+}
+EXPORT_SYMBOL_NS_GPL(cs_amp_write_cal_coeffs, SND_SOC_CS_AMP_LIB);
+
+static efi_status_t cs_amp_get_efi_variable(efi_char16_t *name,
+ efi_guid_t *guid,
+ unsigned long *size,
+ void *buf)
+{
+ u32 attr;
+
+ if (IS_ENABLED(CONFIG_EFI))
+ return efi.get_variable(name, guid, &attr, size, buf);
+
+ return EFI_NOT_FOUND;
+}
+
+static struct cirrus_amp_efi_data *cs_amp_get_cal_efi_buffer(struct device *dev)
+{
+ struct cirrus_amp_efi_data *efi_data;
+ unsigned long data_size = 0;
+ u8 *data;
+ efi_status_t status;
+ int ret;
+
+ /* Get real size of UEFI variable */
+ status = cs_amp_get_efi_variable(CS_AMP_CAL_NAME, &CS_AMP_CAL_GUID, &data_size, NULL);
+ if (status != EFI_BUFFER_TOO_SMALL)
+ return ERR_PTR(-ENOENT);
+
+ if (data_size < sizeof(*efi_data)) {
+ dev_err(dev, "EFI cal variable truncated\n");
+ return ERR_PTR(-EOVERFLOW);
+ }
+
+ /* Get variable contents into buffer */
+ data = kmalloc(data_size, GFP_KERNEL);
+ if (!data)
+ return ERR_PTR(-ENOMEM);
+
+ status = cs_amp_get_efi_variable(CS_AMP_CAL_NAME, &CS_AMP_CAL_GUID, &data_size, data);
+ if (status != EFI_SUCCESS) {
+ ret = efi_status_to_err(status);
+ goto err;
+ }
+
+ efi_data = (struct cirrus_amp_efi_data *)data;
+ dev_dbg(dev, "Calibration: Size=%d, Amp Count=%d\n", efi_data->size, efi_data->count);
+
+ if ((efi_data->count > 128) ||
+ offsetof(struct cirrus_amp_efi_data, data[efi_data->count]) > data_size) {
+ dev_err(dev, "EFI cal variable truncated\n");
+ ret = -EOVERFLOW;
+ goto err;
+ }
+
+ return efi_data;
+
+err:
+ kfree(data);
+ dev_err(dev, "Failed to read calibration data from EFI: %d\n", ret);
+
+ return ERR_PTR(ret);
+}
+
+static u64 cs_amp_cal_target_u64(const struct cirrus_amp_cal_data *data)
+{
+ return ((u64)data->calTarget[1] << 32) | data->calTarget[0];
+}
+
+static int _cs_amp_get_efi_calibration_data(struct device *dev, u64 target_uid, int amp_index,
+ struct cirrus_amp_cal_data *out_data)
+{
+ struct cirrus_amp_efi_data *efi_data;
+ struct cirrus_amp_cal_data *cal = NULL;
+ int i, ret;
+
+ efi_data = cs_amp_get_cal_efi_buffer(dev);
+ if (IS_ERR(efi_data))
+ return PTR_ERR(efi_data);
+
+ if (target_uid) {
+ for (i = 0; i < efi_data->count; ++i) {
+ u64 cal_target = cs_amp_cal_target_u64(&efi_data->data[i]);
+
+ /* Skip entries with unpopulated silicon ID */
+ if (cal_target == 0)
+ continue;
+
+ if (cal_target == target_uid) {
+ cal = &efi_data->data[i];
+ break;
+ }
+ }
+ }
+
+ if (!cal && (amp_index >= 0) && (amp_index < efi_data->count)) {
+ u64 cal_target = cs_amp_cal_target_u64(&efi_data->data[amp_index]);
+
+ /*
+ * Treat unpopulated cal_target as a wildcard.
+ * If target_uid != 0 we can only get here if cal_target == 0
+ * or it didn't match any cal_target value.
+ * If target_uid == 0 it is a wildcard.
+ */
+ if ((cal_target == 0) || (target_uid == 0))
+ cal = &efi_data->data[amp_index];
+ else
+ dev_warn(dev, "Calibration entry %d does not match silicon ID", amp_index);
+ }
+
+ if (cal) {
+ memcpy(out_data, cal, sizeof(*out_data));
+ ret = 0;
+ } else {
+ dev_warn(dev, "No calibration for silicon ID %#llx\n", target_uid);
+ ret = -ENOENT;
+ }
+
+ kfree(efi_data);
+
+ return ret;
+}
+
+/**
+ * cs_amp_get_efi_calibration_data - get an entry from calibration data in EFI.
+ * @dev: struct device of the caller.
+ * @target_uid: UID to match, or zero to ignore UID matching.
+ * @amp_index: Entry index to use, or -1 to prevent lookup by index.
+ * @out_data: struct cirrus_amp_cal_data where the entry will be copied.
+ *
+ * This function can perform 3 types of lookup:
+ *
+ * (target_uid > 0, amp_index >= 0)
+ * UID search with fallback to using the array index.
+ * Search the calibration data for a non-zero calTarget that matches
+ * target_uid, and if found return that entry. Else, if the entry at
+ * [amp_index] has calTarget == 0, return that entry. Else fail.
+ *
+ * (target_uid > 0, amp_index < 0)
+ * UID search only.
+ * Search the calibration data for a non-zero calTarget that matches
+ * target_uid, and if found return that entry. Else fail.
+ *
+ * (target_uid == 0, amp_index >= 0)
+ * Array index fetch only.
+ * Return the entry at [amp_index].
+ *
+ * An array lookup will be skipped if amp_index exceeds the number of
+ * entries in the calibration array, and in this case the return will
+ * be -ENOENT. An out-of-range amp_index does not prevent matching by
+ * target_uid - it has the same effect as passing amp_index < 0.
+ *
+ * If the EFI data is too short to be a valid entry, or the entry count
+ * in the EFI data overflows the actual length of the data, this function
+ * returns -EOVERFLOW.
+ *
+ * Return: 0 if the entry was found, -ENOENT if no entry was found,
+ * -EOVERFLOW if the EFI file is corrupt, else other error value.
+ */
+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))
+ 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);
+
+MODULE_DESCRIPTION("Cirrus Logic amplifier library");
+MODULE_AUTHOR("Richard Fitzgerald <rf@opensource.cirrus.com>");
+MODULE_LICENSE("GPL");
--
2.30.2
^ permalink raw reply related [flat|nested] 14+ messages in thread* [PATCH 9/9] ASoC: cs-amp-lib: Add KUnit test for calibration helpers
2024-02-21 15:04 [PATCH 0/9] ALSA: cs35l56: Apply calibration from EFI Richard Fitzgerald
` (7 preceding siblings ...)
2024-02-21 15:05 ` [PATCH 8/9] ALSA: hda: cs35l56: Apply amp calibration from EFI data Richard Fitzgerald
@ 2024-02-21 15:05 ` Richard Fitzgerald
2024-02-27 3:14 ` kernel test robot
2024-02-22 9:03 ` [PATCH 0/9] ALSA: cs35l56: Apply calibration from EFI Takashi Iwai
` (2 subsequent siblings)
11 siblings, 1 reply; 14+ messages in thread
From: Richard Fitzgerald @ 2024-02-21 15:05 UTC (permalink / raw)
To: broonie, tiwai
Cc: linux-sound, alsa-devel, linux-kernel, patches,
Richard Fitzgerald
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 | 14 +
sound/soc/codecs/Makefile | 2 +
sound/soc/codecs/cs-amp-lib-test.c | 709 +++++++++++++++++++++++++++++
sound/soc/codecs/cs-amp-lib.c | 18 +-
5 files changed, 755 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 35f7bd848276..c9055d833bd0 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 wm_adsp *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 wm_adsp *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..373d0f6478ae 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -732,6 +732,20 @@ 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 KUNIT
+ depends on ACPI || COMPILE_TEST
+ 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..6f9e5755e145
--- /dev/null
+++ b/sound/soc/codecs/cs-amp-lib-test.c
@@ -0,0 +1,709 @@
+// 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/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>
+#include "wm_adsp.h"
+
+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 */
+ kunit_activate_static_stub(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 */
+ kunit_activate_static_stub(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 */
+ kunit_activate_static_stub(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 */
+ kunit_activate_static_stub(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 */
+ kunit_activate_static_stub(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 */
+ kunit_activate_static_stub(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 */
+ kunit_activate_static_stub(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 */
+ kunit_activate_static_stub(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 */
+ kunit_activate_static_stub(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 */
+ kunit_activate_static_stub(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 */
+ kunit_activate_static_stub(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 */
+ kunit_activate_static_stub(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 */
+ kunit_activate_static_stub(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 wm_adsp *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 wm_adsp *dsp;
+ int ret;
+
+ dsp = kunit_kzalloc(test, sizeof(*dsp), GFP_KERNEL);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dsp);
+ dsp->cs_dsp.dev = &priv->amp_pdev.dev;
+
+ get_random_bytes(&data, sizeof(data));
+
+ /* Redirect calls to write firmware controls */
+ kunit_activate_static_stub(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 0e1249342a78..a6ac96ecb176 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/module.h>
@@ -26,6 +27,8 @@ static int cs_amp_write_cal_coeff(struct wm_adsp *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_SND_SOC_WM_ADSP)) {
ret = wm_adsp_write_ctl(dsp, ctl_name, controls->mem_region,
controls->alg_id, &beval, sizeof(beval));
@@ -78,7 +81,7 @@ int cs_amp_write_cal_coeffs(struct wm_adsp *dsp,
const struct cirrus_amp_cal_controls *controls,
const struct cirrus_amp_cal_data *data)
{
- if (IS_REACHABLE(CONFIG_SND_SOC_WM_ADSP))
+ if (IS_REACHABLE(CONFIG_SND_SOC_WM_ADSP) || IS_ENABLED(CONFIG_SND_SOC_CS_AMP_LIB_TEST))
return _cs_amp_write_cal_coeffs(dsp, controls, data);
else
return -ENODEV;
@@ -92,6 +95,8 @@ 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);
@@ -244,13 +249,22 @@ 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");
--
2.30.2
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