/* SPDX-License-Identifier: GPL-2.0 */#ifndef _PSMOUSE_H#define _PSMOUSE_H #define PSMOUSE_OOB_NONE	0x00#define PSMOUSE_OOB_EXTRA_BTNS	0x01 #define PSMOUSE_CMD_SETSCALE11	0x00e6#define PSMOUSE_CMD_SETSCALE21	0x00e7#define PSMOUSE_CMD_SETRES	0x10e8#define PSMOUSE_CMD_GETINFO	0x03e9#define PSMOUSE_CMD_SETSTREAM	0x00ea#define PSMOUSE_CMD_SETPOLL	0x00f0#define PSMOUSE_CMD_POLL	0x00eb	/* caller sets number of bytes to receive */#define PSMOUSE_CMD_RESET_WRAP	0x00ec#define PSMOUSE_CMD_GETID	0x02f2#define PSMOUSE_CMD_SETRATE	0x10f3#define PSMOUSE_CMD_ENABLE	0x00f4#define PSMOUSE_CMD_DISABLE	0x00f5#define PSMOUSE_CMD_RESET_DIS	0x00f6#define PSMOUSE_CMD_RESET_BAT	0x02ff #define PSMOUSE_RET_BAT		0xaa#define PSMOUSE_RET_ID		0x00#define PSMOUSE_RET_ACK		0xfa#define PSMOUSE_RET_NAK		0xfe enum psmouse_state {	PSMOUSE_IGNORE,	PSMOUSE_INITIALIZING,	PSMOUSE_RESYNCING,	PSMOUSE_CMD_MODE,	PSMOUSE_ACTIVATED,}; /* psmouse protocol handler return codes */typedef enum {	PSMOUSE_BAD_DATA,	PSMOUSE_GOOD_DATA,	PSMOUSE_FULL_PACKET} psmouse_ret_t; enum psmouse_scale {	PSMOUSE_SCALE11,	PSMOUSE_SCALE21}; enum psmouse_type {	PSMOUSE_NONE,	PSMOUSE_PS2,	PSMOUSE_PS2PP,	PSMOUSE_THINKPS,	PSMOUSE_GENPS,	PSMOUSE_IMPS,	PSMOUSE_IMEX,	PSMOUSE_SYNAPTICS,	PSMOUSE_ALPS,	PSMOUSE_LIFEBOOK,	PSMOUSE_TRACKPOINT,	PSMOUSE_TOUCHKIT_PS2,	PSMOUSE_CORTRON,	PSMOUSE_HGPK,		/* No longer used */	PSMOUSE_ELANTECH,	PSMOUSE_FSP,	PSMOUSE_SYNAPTICS_RELATIVE,	PSMOUSE_CYPRESS,	PSMOUSE_FOCALTECH,	PSMOUSE_VMMOUSE,	PSMOUSE_BYD,	PSMOUSE_SYNAPTICS_SMBUS,	PSMOUSE_ELANTECH_SMBUS,	PSMOUSE_AUTO		/* This one should always be last */}; struct psmouse; struct psmouse_protocol {	enum psmouse_type type;	bool maxproto;	bool ignore_parity; /* Protocol should ignore parity errors from KBC */	bool try_passthru; /* Try protocol also on passthrough ports */	bool smbus_companion; /* "Protocol" is a stub, device is on SMBus */	const char *name;	const char *alias;	int (*detect)(struct psmouse *, bool);	int (*init)(struct psmouse *);}; struct psmouse {	void *private;	struct input_dev *dev;	struct ps2dev ps2dev;	struct work_struct resync_work;	const char *vendor;	const char *name;	const struct psmouse_protocol *protocol;	unsigned char packet[8];	unsigned char badbyte;	unsigned char pktcnt;	unsigned char pktsize;	unsigned char oob_data_type;	unsigned char extra_buttons;	bool acks_disable_command;	unsigned int model;	unsigned long last;	unsigned long out_of_sync_cnt;	unsigned long num_resyncs;	enum psmouse_state state;	char devname[64];	char phys[32]; 	unsigned int rate;	unsigned int resolution;	unsigned int resetafter;	unsigned int resync_time;	bool smartscroll;	/* Logitech only */ 	psmouse_ret_t (*protocol_handler)(struct psmouse *psmouse);	void (*set_rate)(struct psmouse *psmouse, unsigned int rate);	void (*set_resolution)(struct psmouse *psmouse, unsigned int resolution);	void (*set_scale)(struct psmouse *psmouse, enum psmouse_scale scale); 	int (*reconnect)(struct psmouse *psmouse);	int (*fast_reconnect)(struct psmouse *psmouse);	void (*disconnect)(struct psmouse *psmouse);	void (*cleanup)(struct psmouse *psmouse);	int (*poll)(struct psmouse *psmouse); 	void (*pt_activate)(struct psmouse *psmouse);	void (*pt_deactivate)(struct psmouse *psmouse);}; struct psmouse *psmouse_from_serio(struct serio *serio); int psmouse_reset(struct psmouse *psmouse);void psmouse_set_state(struct psmouse *psmouse, enum psmouse_state new_state);void psmouse_set_resolution(struct psmouse *psmouse, unsigned int resolution);psmouse_ret_t psmouse_process_byte(struct psmouse *psmouse);int psmouse_activate(struct psmouse *psmouse);int psmouse_deactivate(struct psmouse *psmouse);bool psmouse_matches_pnp_id(struct psmouse *psmouse, const char * const ids[]); void psmouse_report_standard_buttons(struct input_dev *, u8 buttons);void psmouse_report_standard_motion(struct input_dev *, u8 *packet);void psmouse_report_standard_packet(struct input_dev *, u8 *packet); struct psmouse_attribute {	struct device_attribute dattr;	void *data;	ssize_t (*show)(struct psmouse *psmouse, void *data, char *buf);	ssize_t (*set)(struct psmouse *psmouse, void *data,			const char *buf, size_t count);	bool protect;};#define to_psmouse_attr(a)	container_of((a), struct psmouse_attribute, dattr) ssize_t psmouse_attr_show_helper(struct device *dev, struct device_attribute *attr,				 char *buf);ssize_t psmouse_attr_set_helper(struct device *dev, struct device_attribute *attr,				const char *buf, size_t count); #define __PSMOUSE_DEFINE_ATTR_VAR(_name, _mode, _data, _show, _set, _protect)	\static struct psmouse_attribute psmouse_attr_##_name = {			\	.dattr	= {								\		.attr	= {							\			.name	= __stringify(_name),				\			.mode	= _mode,					\		},								\		.show	= psmouse_attr_show_helper,				\		.store	= psmouse_attr_set_helper,				\	},									\	.data	= _data,							\	.show	= _show,							\	.set	= _set,								\	.protect = _protect,							\} #define __PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set, _protect)	\	static ssize_t _show(struct psmouse *, void *, char *);			\	static ssize_t _set(struct psmouse *, void *, const char *, size_t);	\	__PSMOUSE_DEFINE_ATTR_VAR(_name, _mode, _data, _show, _set, _protect) #define PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set)			\	__PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set, true) #define PSMOUSE_DEFINE_RO_ATTR(_name, _mode, _data, _show)			\	static ssize_t _show(struct psmouse *, void *, char *);			\	__PSMOUSE_DEFINE_ATTR_VAR(_name, _mode, _data, _show, NULL, true) #define PSMOUSE_DEFINE_WO_ATTR(_name, _mode, _data, _set)			\	static ssize_t _set(struct psmouse *, void *, const char *, size_t);	\	__PSMOUSE_DEFINE_ATTR_VAR(_name, _mode, _data, NULL, _set, true) #ifndef psmouse_fmt#define psmouse_fmt(fmt)	KBUILD_BASENAME ": " fmt#endif #define psmouse_dbg(psmouse, format, ...)		\	dev_dbg(&(psmouse)->ps2dev.serio->dev,		\		psmouse_fmt(format), ##__VA_ARGS__)#define psmouse_info(psmouse, format, ...)		\	dev_info(&(psmouse)->ps2dev.serio->dev,		\		 psmouse_fmt(format), ##__VA_ARGS__)#define psmouse_warn(psmouse, format, ...)		\	dev_warn(&(psmouse)->ps2dev.serio->dev,		\		 psmouse_fmt(format), ##__VA_ARGS__)#define psmouse_err(psmouse, format, ...)		\	dev_err(&(psmouse)->ps2dev.serio->dev,		\		psmouse_fmt(format), ##__VA_ARGS__)#define psmouse_notice(psmouse, format, ...)		\	dev_notice(&(psmouse)->ps2dev.serio->dev,	\		   psmouse_fmt(format), ##__VA_ARGS__)#define psmouse_printk(level, psmouse, format, ...)	\	dev_printk(level,				\		   &(psmouse)->ps2dev.serio->dev,	\		   psmouse_fmt(format), ##__VA_ARGS__) #ifdef CONFIG_MOUSE_PS2_SMBUS int psmouse_smbus_module_init(void);void psmouse_smbus_module_exit(void); struct i2c_board_info; int psmouse_smbus_init(struct psmouse *psmouse,		       const struct i2c_board_info *board,		       const void *pdata, size_t pdata_size,		       bool need_deactivate,		       bool leave_breadcrumbs);void psmouse_smbus_cleanup(struct psmouse *psmouse); #else /* !CONFIG_MOUSE_PS2_SMBUS */ static inline int psmouse_smbus_module_init(void){	return 0;} static inline void psmouse_smbus_module_exit(void){} static inline void psmouse_smbus_cleanup(struct psmouse *psmouse){} #endif /* CONFIG_MOUSE_PS2_SMBUS */ #endif /* _PSMOUSE_H */