ASoC: Intel: catpt: Simple sysfs attributes (8f80a834) · Commits · 戴 / test

Documentation/ABI/testing/sysfs-bus-pci-devices-catpt

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		What: /sys/devices/pci0000:00/<dev>/fw_version
		Date: September 2020
		Contact: Cezary Rojewski <cezary.rojewski@intel.com>
		Description:
		Version of AudioDSP firmware ASoC catpt driver is
		communicating with.
		Format: %d.%d.%d.%d, type:major:minor:build.

		What: /sys/devices/pci0000:00/<dev>/fw_info
		Date: September 2020
		Contact: Cezary Rojewski <cezary.rojewski@intel.com>
		Description:
		Detailed AudioDSP firmware build information including
		build hash and log-providers hash. This information is
		obtained during initial handshake with firmware.
		Format: %s.

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		@@ -15,6 +15,8 @@

		struct catpt_dev;

		extern const struct attribute_group *catpt_attr_groups[];

		void catpt_sram_init(struct resource *sram, u32 start, u32 size);
		void catpt_sram_free(struct resource *sram);
		struct resource *

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		@@ -342,6 +342,7 @@ static struct platform_driver catpt_acpi_driver = {
		.name = "intel_catpt",
		.acpi_match_table = catpt_ids,
		.pm = &catpt_dev_pm,
		.dev_groups = catpt_attr_groups,
		},
		};
		module_platform_driver(catpt_acpi_driver);

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		// SPDX-License-Identifier: GPL-2.0-only
		//
		// Copyright(c) 2020 Intel Corporation. All rights reserved.
		//
		// Author: Cezary Rojewski <cezary.rojewski@intel.com>
		//

		#include <linux/pm_runtime.h>
		#include "core.h"

		static ssize_t fw_version_show(struct device *dev,
		struct device_attribute attr, char buf)
		{
		struct catpt_dev *cdev = dev_get_drvdata(dev);
		struct catpt_fw_version version;
		int ret;

		pm_runtime_get_sync(cdev->dev);

		ret = catpt_ipc_get_fw_version(cdev, &version);

		pm_runtime_mark_last_busy(cdev->dev);
		pm_runtime_put_autosuspend(cdev->dev);

		if (ret)
		return CATPT_IPC_ERROR(ret);

		return sprintf(buf, "%d.%d.%d.%d\n", version.type, version.major,
		version.minor, version.build);
		}
		static DEVICE_ATTR_RO(fw_version);

		static ssize_t fw_info_show(struct device *dev,
		struct device_attribute attr, char buf)
		{
		struct catpt_dev *cdev = dev_get_drvdata(dev);

		return sprintf(buf, "%s\n", cdev->ipc.config.fw_info);
		}
		static DEVICE_ATTR_RO(fw_info);

		static struct attribute *catpt_attrs[] = {
		&dev_attr_fw_version.attr,
		&dev_attr_fw_info.attr,
		NULL
		};

		static const struct attribute_group catpt_attr_group = {
		.attrs = catpt_attrs,
		};

		const struct attribute_group *catpt_attr_groups[] = {
		&catpt_attr_group,
		NULL
		};