95 строки
2.8 KiB
C
95 строки
2.8 KiB
C
/*
|
|
* Copyright (c) 2015, The Linux Foundation. All rights reserved.
|
|
*
|
|
* This software is licensed under the terms of the GNU General Public
|
|
* License version 2, as published by the Free Software Foundation, and
|
|
* may be copied, distributed, and modified under those terms.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*/
|
|
#ifndef __QCOM_TSENS_H__
|
|
#define __QCOM_TSENS_H__
|
|
|
|
#define ONE_PT_CALIB 0x1
|
|
#define ONE_PT_CALIB2 0x2
|
|
#define TWO_PT_CALIB 0x3
|
|
|
|
#include <linux/thermal.h>
|
|
|
|
struct tsens_device;
|
|
|
|
struct tsens_sensor {
|
|
struct tsens_device *tmdev;
|
|
struct thermal_zone_device *tzd;
|
|
int offset;
|
|
int id;
|
|
int hw_id;
|
|
int slope;
|
|
u32 status;
|
|
};
|
|
|
|
/**
|
|
* struct tsens_ops - operations as supported by the tsens device
|
|
* @init: Function to initialize the tsens device
|
|
* @calibrate: Function to calibrate the tsens device
|
|
* @get_temp: Function which returns the temp in millidegC
|
|
* @enable: Function to enable (clocks/power) tsens device
|
|
* @disable: Function to disable the tsens device
|
|
* @suspend: Function to suspend the tsens device
|
|
* @resume: Function to resume the tsens device
|
|
* @get_trend: Function to get the thermal/temp trend
|
|
*/
|
|
struct tsens_ops {
|
|
/* mandatory callbacks */
|
|
int (*init)(struct tsens_device *);
|
|
int (*calibrate)(struct tsens_device *);
|
|
int (*get_temp)(struct tsens_device *, int, int *);
|
|
/* optional callbacks */
|
|
int (*enable)(struct tsens_device *, int);
|
|
void (*disable)(struct tsens_device *);
|
|
int (*suspend)(struct tsens_device *);
|
|
int (*resume)(struct tsens_device *);
|
|
int (*get_trend)(struct tsens_device *, int, enum thermal_trend *);
|
|
};
|
|
|
|
/**
|
|
* struct tsens_data - tsens instance specific data
|
|
* @num_sensors: Max number of sensors supported by platform
|
|
* @ops: operations the tsens instance supports
|
|
* @hw_ids: Subset of sensors ids supported by platform, if not the first n
|
|
*/
|
|
struct tsens_data {
|
|
const u32 num_sensors;
|
|
const struct tsens_ops *ops;
|
|
unsigned int *hw_ids;
|
|
};
|
|
|
|
/* Registers to be saved/restored across a context loss */
|
|
struct tsens_context {
|
|
int threshold;
|
|
int control;
|
|
};
|
|
|
|
struct tsens_device {
|
|
struct device *dev;
|
|
u32 num_sensors;
|
|
struct regmap *map;
|
|
struct regmap_field *status_field;
|
|
struct tsens_context ctx;
|
|
bool trdy;
|
|
const struct tsens_ops *ops;
|
|
struct tsens_sensor sensor[0];
|
|
};
|
|
|
|
char *qfprom_read(struct device *, const char *);
|
|
void compute_intercept_slope(struct tsens_device *, u32 *, u32 *, u32);
|
|
int init_common(struct tsens_device *);
|
|
int get_temp_common(struct tsens_device *, int, int *);
|
|
|
|
extern const struct tsens_data data_8916, data_8974, data_8960, data_8996;
|
|
|
|
#endif /* __QCOM_TSENS_H__ */
|