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ASoC: Intel: avs: Expose FW version with sysfs

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Add functionality to read version of loaded FW from sysfs.

Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Link: https://lore.kernel.org/r/20240209085256.121261-1-amadeuszx.slawinski@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Cezary Rojewski 2024-02-09 09:52:56 +01:00 committed by Mark Brown
parent 4089d82e67
commit f7fc624be3
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GPG Key ID: 24D68B725D5487D0
5 changed files with 50 additions and 1 deletions
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8
Documentation/ABI/testing/sysfs-bus-pci-devices-avs Normal file
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@ -0,0 +1,8 @@
What: /sys/devices/pci0000:00/<dev>/avs/fw_version
Date: February 2024
Contact: Cezary Rojewski <cezary.rojewski@intel.com>
Description:
Version of AudioDSP firmware ASoC avs driver is communicating
with.
Format: %d.%d.%d.%d, type:major:minor:build.

3
sound/soc/intel/avs/Makefile
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@ -1,7 +1,8 @@
# SPDX-License-Identifier: GPL-2.0-only
snd-soc-avs-objs := dsp.o ipc.o messages.o utils.o core.o loader.o \
topology.o path.o pcm.o board_selection.o control.o
topology.o path.o pcm.o board_selection.o control.o \
sysfs.o
snd-soc-avs-objs += cldma.o
snd-soc-avs-objs += skl.o apl.o

4
sound/soc/intel/avs/avs.h
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@ -392,4 +392,8 @@ static inline void avs_debugfs_init(struct avs_dev *adev) { }
static inline void avs_debugfs_exit(struct avs_dev *adev) { }
#endif
/* Filesystems integration */
extern const struct attribute_group *avs_attr_groups[];
#endif /* __SOUND_SOC_INTEL_AVS_H */

1
sound/soc/intel/avs/core.c
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@ -773,6 +773,7 @@ static struct pci_driver avs_pci_driver = {
.probe = avs_pci_probe,
.remove = avs_pci_remove,
.shutdown = avs_pci_shutdown,
.dev_groups = avs_attr_groups,
.driver = {
.pm = &avs_dev_pm,
},

35
sound/soc/intel/avs/sysfs.c Normal file
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@ -0,0 +1,35 @@
// SPDX-License-Identifier: GPL-2.0-only
//
// Copyright(c) 2021-2024 Intel Corporation. All rights reserved.
//
// Authors: Cezary Rojewski <cezary.rojewski@intel.com>
// Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com>
//
#include <linux/sysfs.h>
#include "avs.h"
static ssize_t fw_version_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct avs_dev *adev = to_avs_dev(dev);
struct avs_fw_version *fw_version = &adev->fw_cfg.fw_version;
return sysfs_emit(buf, "%d.%d.%d.%d\n", fw_version->major, fw_version->minor,
fw_version->hotfix, fw_version->build);
}
static DEVICE_ATTR_RO(fw_version);
static struct attribute *avs_fw_attrs[] = {
&dev_attr_fw_version.attr,
NULL
};
static const struct attribute_group avs_attr_group = {
.name = "avs",
.attrs = avs_fw_attrs,
};
const struct attribute_group *avs_attr_groups[] = {
&avs_attr_group,
NULL
};