drivers/power/qcom-charger/smb-lib.h

/* Copyright (c) 2016 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 __SMB2_CHARGER_H
#define __SMB2_CHARGER_H
#include <linux/types.h>
#include <linux/irqreturn.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/consumer.h>

enum print_reason {
	PR_INTERRUPT	= BIT(0),
	PR_REGISTER	= BIT(1),
	PR_MISC		= BIT(2),
};

#define DEFAULT_VOTER	"DEFAULT_VOTER"
#define USER_VOTER	"USER_VOTER"
#define PD_VOTER	"PD_VOTER"
#define PL_VOTER	"PL_VOTER"
#define USBIN_ICL_VOTER	"USBIN_ICL_VOTER"
#define CHG_STATE_VOTER	"CHG_STATE_VOTER"
#define TYPEC_SRC_VOTER	"TYPEC_SRC_VOTER"
#define TAPER_END_VOTER	"TAPER_END_VOTER"
#define FCC_MAX_RESULT	"FCC_MAX_RESULT"
#define THERMAL_DAEMON	"THERMAL_DAEMON"

enum smb_mode {
	PARALLEL_MASTER = 0,
	PARALLEL_SLAVE,
	NUM_MODES,
};

struct smb_regulator {
	struct regulator_dev	*rdev;
	struct regulator_desc	rdesc;
};

struct smb_irq_data {
	void		*parent_data;
	const char	*name;
};

struct smb_chg_param {
	const char	*name;
	u16		reg;
	int		min_u;
	int		max_u;
	int		step_u;
	int		(*get_proc)(struct smb_chg_param *param,
				    u8 val_raw);
	int		(*set_proc)(struct smb_chg_param *param,
				    int val_u,
				    u8 *val_raw);
};

struct smb_params {
	struct smb_chg_param	fcc;
	struct smb_chg_param	fv;
	struct smb_chg_param	usb_icl;
	struct smb_chg_param	icl_stat;
	struct smb_chg_param	dc_icl;
	struct smb_chg_param	dc_icl_pt_lv;
	struct smb_chg_param	dc_icl_pt_hv;
	struct smb_chg_param	dc_icl_div2_lv;
	struct smb_chg_param	dc_icl_div2_mid_lv;
	struct smb_chg_param	dc_icl_div2_mid_hv;
	struct smb_chg_param	dc_icl_div2_hv;
	struct smb_chg_param	jeita_cc_comp;
	struct smb_chg_param	step_soc_threshold[4];
	struct smb_chg_param	step_soc;
	struct smb_chg_param	step_cc_delta[5];
};

struct parallel_params {
	struct power_supply	*psy;
	int			*master_percent;
	int			taper_percent;
	int			slave_fcc;
};

struct smb_iio {
	struct iio_channel	*temp_chan;
	struct iio_channel	*temp_max_chan;
	struct iio_channel	*usbin_i_chan;
	struct iio_channel	*usbin_v_chan;
};

struct smb_charger {
	struct device		*dev;
	struct regmap		*regmap;
	struct smb_params	param;
	struct smb_iio		iio;
	int			*debug_mask;
	enum smb_mode		mode;

	/* locks */
	struct mutex		write_lock;
	struct mutex		ps_change_lock;

	/* power supplies */
	struct power_supply		*batt_psy;
	struct power_supply		*usb_psy;
	struct power_supply		*dc_psy;
	struct power_supply		*bms_psy;
	struct power_supply_desc	usb_psy_desc;

	/* notifiers */
	struct notifier_block	nb;

	/* parallel charging */
	struct parallel_params	pl;

	/* regulators */
	struct smb_regulator	*vbus_vreg;
	struct smb_regulator	*vconn_vreg;
	struct regulator	*dpdm_reg;

	/* votables */
	struct votable		*usb_suspend_votable;
	struct votable		*dc_suspend_votable;
	struct votable		*fcc_max_votable;
	struct votable		*fcc_votable;
	struct votable		*fv_votable;
	struct votable		*usb_icl_votable;
	struct votable		*dc_icl_votable;
	struct votable		*pd_allowed_votable;
	struct votable		*awake_votable;
	struct votable		*pl_disable_votable;
	struct votable		*chg_disable_votable;

	/* work */
	struct work_struct	bms_update_work;
	struct work_struct	pl_detect_work;
	struct delayed_work	hvdcp_detect_work;
	struct delayed_work	ps_change_timeout_work;
	struct delayed_work	pl_taper_work;
	struct delayed_work	step_soc_req_work;
	struct delayed_work	clear_hdc_work;

	/* cached status */
	int			voltage_min_uv;
	int			voltage_max_uv;
	bool			pd_active;
	bool			vbus_present;

	int			system_temp_level;
	int			thermal_levels;
	int			*thermal_mitigation;

	int			fake_capacity;

	bool			step_chg_enabled;
	bool			is_hdc;
};

int smblib_read(struct smb_charger *chg, u16 addr, u8 *val);
int smblib_masked_write(struct smb_charger *chg, u16 addr, u8 mask, u8 val);
int smblib_write(struct smb_charger *chg, u16 addr, u8 val);

int smblib_get_charge_param(struct smb_charger *chg,
			    struct smb_chg_param *param, int *val_u);
int smblib_get_usb_suspend(struct smb_charger *chg, int *suspend);

int smblib_enable_charging(struct smb_charger *chg, bool enable);
int smblib_set_charge_param(struct smb_charger *chg,
			    struct smb_chg_param *param, int val_u);
int smblib_set_usb_suspend(struct smb_charger *chg, bool suspend);
int smblib_set_dc_suspend(struct smb_charger *chg, bool suspend);

int smblib_mapping_soc_from_field_value(struct smb_chg_param *param,
					     int val_u, u8 *val_raw);
int smblib_mapping_cc_delta_to_field_value(struct smb_chg_param *param,
					   u8 val_raw);
int smblib_mapping_cc_delta_from_field_value(struct smb_chg_param *param,
					     int val_u, u8 *val_raw);

int smblib_vbus_regulator_enable(struct regulator_dev *rdev);
int smblib_vbus_regulator_disable(struct regulator_dev *rdev);
int smblib_vbus_regulator_is_enabled(struct regulator_dev *rdev);

int smblib_vconn_regulator_enable(struct regulator_dev *rdev);
int smblib_vconn_regulator_disable(struct regulator_dev *rdev);
int smblib_vconn_regulator_is_enabled(struct regulator_dev *rdev);

irqreturn_t smblib_handle_debug(int irq, void *data);
irqreturn_t smblib_handle_chg_state_change(int irq, void *data);
irqreturn_t smblib_handle_step_chg_state_change(int irq, void *data);
irqreturn_t smblib_handle_step_chg_soc_update_fail(int irq, void *data);
irqreturn_t smblib_handle_step_chg_soc_update_request(int irq, void *data);
irqreturn_t smblib_handle_batt_temp_changed(int irq, void *data);
irqreturn_t smblib_handle_batt_psy_changed(int irq, void *data);
irqreturn_t smblib_handle_usb_psy_changed(int irq, void *data);
irqreturn_t smblib_handle_usb_plugin(int irq, void *data);
irqreturn_t smblib_handle_usb_source_change(int irq, void *data);
irqreturn_t smblib_handle_icl_change(int irq, void *data);
irqreturn_t smblib_handle_usb_typec_change(int irq, void *data);
irqreturn_t smblib_handle_high_duty_cycle(int irq, void *data);

int smblib_get_prop_input_suspend(struct smb_charger *chg,
				union power_supply_propval *val);
int smblib_get_prop_batt_present(struct smb_charger *chg,
				union power_supply_propval *val);
int smblib_get_prop_batt_capacity(struct smb_charger *chg,
				union power_supply_propval *val);
int smblib_get_prop_batt_status(struct smb_charger *chg,
				union power_supply_propval *val);
int smblib_get_prop_batt_charge_type(struct smb_charger *chg,
				union power_supply_propval *val);
int smblib_get_prop_batt_health(struct smb_charger *chg,
				union power_supply_propval *val);
int smblib_get_prop_system_temp_level(struct smb_charger *chg,
				union power_supply_propval *val);
int smblib_get_prop_input_current_limited(struct smb_charger *chg,
				union power_supply_propval *val);

int smblib_set_prop_input_suspend(struct smb_charger *chg,
				const union power_supply_propval *val);
int smblib_set_prop_batt_capacity(struct smb_charger *chg,
				const union power_supply_propval *val);
int smblib_set_prop_system_temp_level(struct smb_charger *chg,
				const union power_supply_propval *val);

int smblib_get_prop_dc_present(struct smb_charger *chg,
				union power_supply_propval *val);
int smblib_get_prop_dc_online(struct smb_charger *chg,
				union power_supply_propval *val);
int smblib_get_prop_dc_current_max(struct smb_charger *chg,
				union power_supply_propval *val);
int smblib_set_prop_dc_current_max(struct smb_charger *chg,
				const union power_supply_propval *val);

int smblib_get_prop_usb_present(struct smb_charger *chg,
				union power_supply_propval *val);
int smblib_get_prop_usb_online(struct smb_charger *chg,
				union power_supply_propval *val);
int smblib_get_prop_usb_suspend(struct smb_charger *chg,
				union power_supply_propval *val);
int smblib_get_prop_usb_voltage_now(struct smb_charger *chg,
				union power_supply_propval *val);
int smblib_get_prop_usb_current_max(struct smb_charger *chg,
				union power_supply_propval *val);
int smblib_get_prop_usb_current_now(struct smb_charger *chg,
				union power_supply_propval *val);
int smblib_get_prop_typec_cc_orientation(struct smb_charger *chg,
				union power_supply_propval *val);
int smblib_get_prop_typec_mode(struct smb_charger *chg,
				union power_supply_propval *val);
int smblib_get_prop_typec_power_role(struct smb_charger *chg,
				union power_supply_propval *val);
int smblib_get_prop_pd_allowed(struct smb_charger *chg,
				union power_supply_propval *val);
int smblib_get_prop_input_current_settled(struct smb_charger *chg,
				union power_supply_propval *val);
int smblib_get_prop_charger_temp(struct smb_charger *chg,
				union power_supply_propval *val);
int smblib_get_prop_charger_temp_max(struct smb_charger *chg,
				union power_supply_propval *val);
int smblib_set_prop_usb_current_max(struct smb_charger *chg,
				const union power_supply_propval *val);
int smblib_set_prop_usb_voltage_min(struct smb_charger *chg,
				const union power_supply_propval *val);
int smblib_set_prop_usb_voltage_max(struct smb_charger *chg,
				const union power_supply_propval *val);
int smblib_set_prop_typec_power_role(struct smb_charger *chg,
				const union power_supply_propval *val);
int smblib_set_prop_pd_active(struct smb_charger *chg,
				const union power_supply_propval *val);

int smblib_init(struct smb_charger *chg);
int smblib_deinit(struct smb_charger *chg);
#endif /* __SMB2_CHARGER_H */