From: Cezary Rojewski cezary.rojewski@intel.com

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 --- .../ABI/testing/sysfs-bus-pci-devices-avs | 8 +++++ sound/soc/intel/avs/Makefile | 3 +- sound/soc/intel/avs/avs.h | 4 +++ sound/soc/intel/avs/core.c | 1 + sound/soc/intel/avs/sysfs.c | 35 +++++++++++++++++++ 5 files changed, 50 insertions(+), 1 deletion(-) create mode 100644 Documentation/ABI/testing/sysfs-bus-pci-devices-avs create mode 100644 sound/soc/intel/avs/sysfs.c

diff --git a/Documentation/ABI/testing/sysfs-bus-pci-devices-avs b/Documentation/ABI/testing/sysfs-bus-pci-devices-avs new file mode 100644 index 0000000000000..abfdecd85f204 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-pci-devices-avs @@ -0,0 +1,8 @@ +What: /sys/devices/pci0000:00/<dev>/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. diff --git a/sound/soc/intel/avs/Makefile b/sound/soc/intel/avs/Makefile index 460ee6599daf0..a3fad926d0fb0 100644 --- a/sound/soc/intel/avs/Makefile +++ b/sound/soc/intel/avs/Makefile @@ -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

diff --git a/sound/soc/intel/avs/avs.h b/sound/soc/intel/avs/avs.h index d694e08e44e18..69c912feb8a7e 100644 --- a/sound/soc/intel/avs/avs.h +++ b/sound/soc/intel/avs/avs.h @@ -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 */ diff --git a/sound/soc/intel/avs/core.c b/sound/soc/intel/avs/core.c index db78eb2f01080..273a902168562 100644 --- a/sound/soc/intel/avs/core.c +++ b/sound/soc/intel/avs/core.c @@ -776,6 +776,7 @@ 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, }, diff --git a/sound/soc/intel/avs/sysfs.c b/sound/soc/intel/avs/sysfs.c new file mode 100644 index 0000000000000..cce21636fbc02 --- /dev/null +++ b/sound/soc/intel/avs/sysfs.c @@ -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 +};