forked from mirrors/linux
7497d4a66c
Add a fan sensor to report RPM's from a fan tach input. Signed-off-by: Tim Harvey <tharvey@gateworks.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
46 lines
1.1 KiB
C
46 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _GSC_HWMON_H
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#define _GSC_HWMON_H
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enum gsc_hwmon_mode {
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mode_temperature,
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mode_voltage_24bit,
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mode_voltage_raw,
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mode_voltage_16bit,
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mode_fan,
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mode_max,
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};
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/**
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* struct gsc_hwmon_channel - configuration parameters
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* @reg: I2C register offset
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* @mode: channel mode
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* @name: channel name
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* @mvoffset: voltage offset
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* @vdiv: voltage divider array (2 resistor values in milli-ohms)
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*/
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struct gsc_hwmon_channel {
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unsigned int reg;
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unsigned int mode;
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const char *name;
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unsigned int mvoffset;
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unsigned int vdiv[2];
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};
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/**
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* struct gsc_hwmon_platform_data - platform data for gsc_hwmon driver
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* @channels: pointer to array of gsc_hwmon_channel structures
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* describing channels
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* @nchannels: number of elements in @channels array
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* @vreference: voltage reference (mV)
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* @resolution: ADC bit resolution
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* @fan_base: register base for FAN controller
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*/
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struct gsc_hwmon_platform_data {
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const struct gsc_hwmon_channel *channels;
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int nchannels;
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unsigned int resolution;
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unsigned int vreference;
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unsigned int fan_base;
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};
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#endif
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