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/*
* Copyright (C) 2016 Bjørn Mork <bjorn@mork.no>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*/
#include <linux/hwmon.h>
#include "sysadpt.h"
#include "dev.h"
#include "fwcmd.h"
#include "hwmon.h"
#if IS_ENABLED(CONFIG_HWMON)
static ssize_t temp1_input_show(struct device *device,
struct device_attribute *devattr,
char *buf)
{
u32 temp;
struct ieee80211_hw *hw = dev_get_drvdata(device);
int ret = mwl_fwcmd_get_temp(hw, &temp);
/* 'temp' appears to be Fahrenheit despite the 'celcius' field name */
return ret < 0 ? ret : snprintf(buf, PAGE_SIZE, "%d\n", (temp - 32) * 1000 * 5 / 9);
}
static DEVICE_ATTR_RO(temp1_input);
static struct attribute *mwl_hwmon_attrs[] = {
&dev_attr_temp1_input.attr,
NULL,
};
ATTRIBUTE_GROUPS(mwl_hwmon);
int mwl_hwmon_register(struct ieee80211_hw *hw)
{
struct mwl_priv *priv = hw->priv;
struct device *hwmon;
hwmon = hwmon_device_register_with_groups(priv->dev, wiphy_name(hw->wiphy),
hw, mwl_hwmon_groups);
if (!IS_ERR(hwmon))
priv->hwmon = hwmon;
return PTR_ERR_OR_ZERO(hwmon);
}
void mwl_hwmon_unregister(struct ieee80211_hw *hw)
{
struct mwl_priv *priv = hw->priv;
if (priv->hwmon)
hwmon_device_unregister(priv->hwmon);
priv->hwmon = NULL;
}
#endif /* CONFIG_HWMON */
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