131 lines
2.6 KiB
C
131 lines
2.6 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/* Copyright (C) 2014-2019 aQuantia Corporation. */
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/* File aq_drvinfo.c: Definition of common code for firmware info in sys.*/
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#include <linux/init.h>
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#include <linux/kobject.h>
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#include <linux/module.h>
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#include <linux/stat.h>
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#include <linux/string.h>
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#include <linux/hwmon.h>
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#include <linux/uaccess.h>
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#include "aq_drvinfo.h"
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#if IS_REACHABLE(CONFIG_HWMON)
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static int aq_hwmon_read(struct device *dev, enum hwmon_sensor_types type,
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u32 attr, int channel, long *value)
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{
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struct aq_nic_s *aq_nic = dev_get_drvdata(dev);
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int temp;
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int err;
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if (!aq_nic)
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return -EIO;
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if (type != hwmon_temp)
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return -EOPNOTSUPP;
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if (!aq_nic->aq_fw_ops->get_phy_temp)
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return -EOPNOTSUPP;
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switch (attr) {
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case hwmon_temp_input:
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err = aq_nic->aq_fw_ops->get_phy_temp(aq_nic->aq_hw, &temp);
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*value = temp;
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return err;
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default:
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return -EOPNOTSUPP;
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}
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}
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static int aq_hwmon_read_string(struct device *dev,
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enum hwmon_sensor_types type,
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u32 attr, int channel, const char **str)
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{
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struct aq_nic_s *aq_nic = dev_get_drvdata(dev);
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if (!aq_nic)
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return -EIO;
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if (type != hwmon_temp)
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return -EOPNOTSUPP;
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if (!aq_nic->aq_fw_ops->get_phy_temp)
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return -EOPNOTSUPP;
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switch (attr) {
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case hwmon_temp_label:
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*str = "PHY Temperature";
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return 0;
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default:
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return -EOPNOTSUPP;
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}
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}
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static umode_t aq_hwmon_is_visible(const void *data,
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enum hwmon_sensor_types type,
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u32 attr, int channel)
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{
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if (type != hwmon_temp)
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return 0;
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switch (attr) {
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case hwmon_temp_input:
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case hwmon_temp_label:
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return 0444;
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default:
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return 0;
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}
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}
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static const struct hwmon_ops aq_hwmon_ops = {
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.is_visible = aq_hwmon_is_visible,
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.read = aq_hwmon_read,
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.read_string = aq_hwmon_read_string,
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};
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static u32 aq_hwmon_temp_config[] = {
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HWMON_T_INPUT | HWMON_T_LABEL,
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0,
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};
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static const struct hwmon_channel_info aq_hwmon_temp = {
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.type = hwmon_temp,
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.config = aq_hwmon_temp_config,
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};
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static const struct hwmon_channel_info *aq_hwmon_info[] = {
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&aq_hwmon_temp,
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NULL,
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};
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static const struct hwmon_chip_info aq_hwmon_chip_info = {
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.ops = &aq_hwmon_ops,
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.info = aq_hwmon_info,
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};
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int aq_drvinfo_init(struct net_device *ndev)
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{
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struct aq_nic_s *aq_nic = netdev_priv(ndev);
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struct device *dev = &aq_nic->pdev->dev;
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struct device *hwmon_dev;
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int err = 0;
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hwmon_dev = devm_hwmon_device_register_with_info(dev,
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ndev->name,
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aq_nic,
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&aq_hwmon_chip_info,
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NULL);
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if (IS_ERR(hwmon_dev))
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err = PTR_ERR(hwmon_dev);
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return err;
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}
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#else
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int aq_drvinfo_init(struct net_device *ndev) { return 0; }
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#endif
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