diff options
Diffstat (limited to 'hwmon.c')
| -rw-r--r-- | hwmon.c | 56 |
1 files changed, 56 insertions, 0 deletions
@@ -0,0 +1,56 @@ +/* + * 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 */ + |