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/* Copyright (c) 2017-2018, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* 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__
#include <linux/kernel.h>
#include <linux/thermal.h>
#include <linux/interrupt.h>
#include <linux/types.h>
#include <linux/workqueue.h>
#include <linux/io.h>
#include <linux/delay.h>
#define DEBUG_SIZE 10
#define TSENS_MAX_SENSORS 16
#define TSENS_NUM_SENSORS_8937 11
#define TSENS_NUM_SENSORS_8909 5
#define TSENS_CONTROLLER_ID(n) (n)
#define TSENS_CTRL_ADDR(n) (n)
#define TSENS_TM_SN_STATUS(n) ((n) + 0xa0)
#define ONE_PT_CALIB 0x1
#define ONE_PT_CALIB2 0x2
#define TWO_PT_CALIB 0x3
#define SLOPE_FACTOR 1000
#define SLOPE_DEFAULT 3200
enum tsens_dbg_type {
TSENS_DBG_POLL,
TSENS_DBG_LOG_TEMP_READS,
TSENS_DBG_LOG_INTERRUPT_TIMESTAMP,
TSENS_DBG_LOG_BUS_ID_DATA,
TSENS_DBG_MTC_DATA,
TSENS_DBG_LOG_MAX
};
#define tsens_sec_to_msec_value 1000
struct tsens_device;
#if defined(CONFIG_THERMAL_TSENS)
int tsens2xxx_dbg(struct tsens_device *data, u32 id, u32 dbg_type, int *temp);
#else
static inline int tsens2xxx_dbg(struct tsens_device *data, u32 id,
u32 dbg_type, int *temp)
{ return -ENXIO; }
#endif
struct tsens_dbg {
u32 idx;
unsigned long long time_stmp[DEBUG_SIZE];
unsigned long temp[DEBUG_SIZE];
};
struct tsens_dbg_context {
struct tsens_device *tmdev;
struct tsens_dbg sensor_dbg_info[TSENS_MAX_SENSORS];
int tsens_critical_wd_cnt;
u32 irq_idx;
unsigned long long irq_time_stmp[DEBUG_SIZE];
struct delayed_work tsens_critical_poll_test;
};
struct tsens_context {
enum thermal_device_mode high_th_state;
enum thermal_device_mode low_th_state;
enum thermal_device_mode crit_th_state;
int high_temp;
int low_temp;
int crit_temp;
int high_adc_code;
int low_adc_code;
};
struct tsens_sensor {
struct tsens_device *tmdev;
struct thermal_zone_device *tzd;
u32 hw_id;
u32 id;
const char *sensor_name;
struct tsens_context thr_state;
int offset;
int slope;
};
/**
* struct tsens_ops - operations as supported by the tsens device
* @init: Function to initialize the tsens device
* @get_temp: Function which returns the temp in millidegC
*/
struct tsens_ops {
int (*hw_init)(struct tsens_device *);
int (*get_temp)(struct tsens_sensor *, int *);
int (*set_trips)(struct tsens_sensor *, int, int);
int (*interrupts_reg)(struct tsens_device *);
int (*dbg)(struct tsens_device *, u32, u32, int *);
int (*sensor_en)(struct tsens_device *, u32);
int (*calibrate)(struct tsens_device *);
};
struct tsens_irqs {
const char *name;
irqreturn_t (*handler)(int, void *);
};
/**
* 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;
u32 temp_factor;
bool cycle_monitor;
u32 cycle_compltn_monitor_mask;
bool wd_bark;
u32 wd_bark_mask;
bool mtc;
bool valid_status_check;
u32 ver_major;
u32 ver_minor;
};
struct tsens_mtc_sysfs {
u32 zone_log;
int zone_mtc;
int th1;
int th2;
u32 zone_hist;
};
struct tsens_device {
struct device *dev;
struct platform_device *pdev;
struct list_head list;
bool prev_reading_avail;
struct regmap *map;
struct regmap_field *status_field;
void __iomem *tsens_srot_addr;
void __iomem *tsens_tm_addr;
void __iomem *tsens_calib_addr;
const struct tsens_ops *ops;
struct tsens_dbg_context tsens_dbg;
spinlock_t tsens_crit_lock;
spinlock_t tsens_upp_low_lock;
const struct tsens_data *ctrl_data;
struct tsens_mtc_sysfs mtcsys;
struct tsens_sensor sensor[0];
};
extern const struct tsens_data data_tsens2xxx, data_tsens23xx, data_tsens24xx;
extern const struct tsens_data data_tsens14xx, data_tsens1xxx_8909;
extern struct list_head tsens_device_list;
extern int calibrate_8937(struct tsens_device *tmdev);
extern int calibrate_8909(struct tsens_device *tmdev);
#endif /* __QCOM_TSENS_H__ */