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ASoC: Intel: avs: Expose FW version with sysfs
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>
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Documentation/ABI/testing/sysfs-bus-pci-devices-avs
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8
Documentation/ABI/testing/sysfs-bus-pci-devices-avs
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@ -0,0 +1,8 @@
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What: /sys/devices/pci0000:00/<dev>/avs/fw_version
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Date: February 2024
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Contact: Cezary Rojewski <cezary.rojewski@intel.com>
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Description:
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Version of AudioDSP firmware ASoC avs driver is communicating
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with.
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Format: %d.%d.%d.%d, type:major:minor:build.
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@ -1,7 +1,8 @@
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# SPDX-License-Identifier: GPL-2.0-only
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snd-soc-avs-objs := dsp.o ipc.o messages.o utils.o core.o loader.o \
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topology.o path.o pcm.o board_selection.o control.o
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topology.o path.o pcm.o board_selection.o control.o \
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sysfs.o
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snd-soc-avs-objs += cldma.o
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snd-soc-avs-objs += skl.o apl.o
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@ -392,4 +392,8 @@ static inline void avs_debugfs_init(struct avs_dev *adev) { }
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static inline void avs_debugfs_exit(struct avs_dev *adev) { }
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#endif
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/* Filesystems integration */
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extern const struct attribute_group *avs_attr_groups[];
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#endif /* __SOUND_SOC_INTEL_AVS_H */
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@ -773,6 +773,7 @@ static struct pci_driver avs_pci_driver = {
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.probe = avs_pci_probe,
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.remove = avs_pci_remove,
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.shutdown = avs_pci_shutdown,
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.dev_groups = avs_attr_groups,
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.driver = {
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.pm = &avs_dev_pm,
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},
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35
sound/soc/intel/avs/sysfs.c
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sound/soc/intel/avs/sysfs.c
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// SPDX-License-Identifier: GPL-2.0-only
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//
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// Copyright(c) 2021-2024 Intel Corporation. All rights reserved.
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//
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// Authors: Cezary Rojewski <cezary.rojewski@intel.com>
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// Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com>
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//
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#include <linux/sysfs.h>
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#include "avs.h"
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static ssize_t fw_version_show(struct device *dev, struct device_attribute *attr, char *buf)
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{
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struct avs_dev *adev = to_avs_dev(dev);
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struct avs_fw_version *fw_version = &adev->fw_cfg.fw_version;
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return sysfs_emit(buf, "%d.%d.%d.%d\n", fw_version->major, fw_version->minor,
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fw_version->hotfix, fw_version->build);
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}
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static DEVICE_ATTR_RO(fw_version);
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static struct attribute *avs_fw_attrs[] = {
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&dev_attr_fw_version.attr,
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NULL
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};
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static const struct attribute_group avs_attr_group = {
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.name = "avs",
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.attrs = avs_fw_attrs,
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};
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const struct attribute_group *avs_attr_groups[] = {
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&avs_attr_group,
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NULL
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};
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