153 lines
		
	
	
		
			4.4 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			153 lines
		
	
	
		
			4.4 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
#ifndef _PSMOUSE_H
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#define _PSMOUSE_H
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#define PSMOUSE_CMD_SETSCALE11	0x00e6
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#define PSMOUSE_CMD_SETSCALE21	0x00e7
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#define PSMOUSE_CMD_SETRES	0x10e8
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#define PSMOUSE_CMD_GETINFO	0x03e9
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#define PSMOUSE_CMD_SETSTREAM	0x00ea
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#define PSMOUSE_CMD_SETPOLL	0x00f0
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#define PSMOUSE_CMD_POLL	0x00eb	/* caller sets number of bytes to receive */
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#define PSMOUSE_CMD_GETID	0x02f2
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#define PSMOUSE_CMD_SETRATE	0x10f3
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#define PSMOUSE_CMD_ENABLE	0x00f4
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#define PSMOUSE_CMD_DISABLE	0x00f5
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#define PSMOUSE_CMD_RESET_DIS	0x00f6
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#define PSMOUSE_CMD_RESET_BAT	0x02ff
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#define PSMOUSE_RET_BAT		0xaa
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#define PSMOUSE_RET_ID		0x00
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#define PSMOUSE_RET_ACK		0xfa
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#define PSMOUSE_RET_NAK		0xfe
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enum psmouse_state {
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	PSMOUSE_IGNORE,
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	PSMOUSE_INITIALIZING,
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	PSMOUSE_RESYNCING,
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	PSMOUSE_CMD_MODE,
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	PSMOUSE_ACTIVATED,
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};
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/* psmouse protocol handler return codes */
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typedef enum {
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	PSMOUSE_BAD_DATA,
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	PSMOUSE_GOOD_DATA,
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	PSMOUSE_FULL_PACKET
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} psmouse_ret_t;
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struct psmouse {
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	void *private;
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	struct input_dev *dev;
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	struct ps2dev ps2dev;
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	struct delayed_work resync_work;
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	char *vendor;
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	char *name;
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	unsigned char packet[8];
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	unsigned char badbyte;
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	unsigned char pktcnt;
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	unsigned char pktsize;
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	unsigned char type;
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	bool acks_disable_command;
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	unsigned int model;
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	unsigned long last;
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	unsigned long out_of_sync_cnt;
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	unsigned long num_resyncs;
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	enum psmouse_state state;
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	char devname[64];
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	char phys[32];
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	unsigned int rate;
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	unsigned int resolution;
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	unsigned int resetafter;
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	unsigned int resync_time;
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	bool smartscroll;	/* Logitech only */
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	psmouse_ret_t (*protocol_handler)(struct psmouse *psmouse);
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	void (*set_rate)(struct psmouse *psmouse, unsigned int rate);
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	void (*set_resolution)(struct psmouse *psmouse, unsigned int resolution);
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	int (*reconnect)(struct psmouse *psmouse);
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	void (*disconnect)(struct psmouse *psmouse);
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	void (*cleanup)(struct psmouse *psmouse);
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	int (*poll)(struct psmouse *psmouse);
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	void (*pt_activate)(struct psmouse *psmouse);
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	void (*pt_deactivate)(struct psmouse *psmouse);
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};
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enum psmouse_type {
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	PSMOUSE_NONE,
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	PSMOUSE_PS2,
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	PSMOUSE_PS2PP,
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	PSMOUSE_THINKPS,
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	PSMOUSE_GENPS,
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	PSMOUSE_IMPS,
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	PSMOUSE_IMEX,
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	PSMOUSE_SYNAPTICS,
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	PSMOUSE_ALPS,
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	PSMOUSE_LIFEBOOK,
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	PSMOUSE_TRACKPOINT,
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	PSMOUSE_TOUCHKIT_PS2,
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	PSMOUSE_CORTRON,
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	PSMOUSE_HGPK,
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	PSMOUSE_ELANTECH,
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	PSMOUSE_FSP,
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	PSMOUSE_AUTO		/* This one should always be last */
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};
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void psmouse_queue_work(struct psmouse *psmouse, struct delayed_work *work,
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		unsigned long delay);
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int psmouse_sliced_command(struct psmouse *psmouse, unsigned char command);
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int psmouse_reset(struct psmouse *psmouse);
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void psmouse_set_state(struct psmouse *psmouse, enum psmouse_state new_state);
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void psmouse_set_resolution(struct psmouse *psmouse, unsigned int resolution);
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struct psmouse_attribute {
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	struct device_attribute dattr;
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	void *data;
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	ssize_t (*show)(struct psmouse *psmouse, void *data, char *buf);
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	ssize_t (*set)(struct psmouse *psmouse, void *data,
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			const char *buf, size_t count);
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	bool protect;
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};
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#define to_psmouse_attr(a)	container_of((a), struct psmouse_attribute, dattr)
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ssize_t psmouse_attr_show_helper(struct device *dev, struct device_attribute *attr,
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				 char *buf);
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ssize_t psmouse_attr_set_helper(struct device *dev, struct device_attribute *attr,
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				const char *buf, size_t count);
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#define __PSMOUSE_DEFINE_ATTR_VAR(_name, _mode, _data, _show, _set, _protect)	\
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static struct psmouse_attribute psmouse_attr_##_name = {			\
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	.dattr	= {								\
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		.attr	= {							\
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			.name	= __stringify(_name),				\
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			.mode	= _mode,					\
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		},								\
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		.show	= psmouse_attr_show_helper,				\
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		.store	= psmouse_attr_set_helper,				\
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	},									\
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	.data	= _data,							\
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	.show	= _show,							\
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	.set	= _set,								\
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	.protect = _protect,							\
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}
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#define __PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set, _protect)	\
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	static ssize_t _show(struct psmouse *, void *, char *);			\
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	static ssize_t _set(struct psmouse *, void *, const char *, size_t);	\
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	__PSMOUSE_DEFINE_ATTR_VAR(_name, _mode, _data, _show, _set, _protect)
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#define PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set)			\
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	__PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set, true)
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#define PSMOUSE_DEFINE_RO_ATTR(_name, _mode, _data, _show)			\
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	static ssize_t _show(struct psmouse *, void *, char *);			\
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	__PSMOUSE_DEFINE_ATTR_VAR(_name, _mode, _data, _show, NULL, true)
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#define PSMOUSE_DEFINE_WO_ATTR(_name, _mode, _data, _set)			\
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	static ssize_t _set(struct psmouse *, void *, const char *, size_t);	\
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	__PSMOUSE_DEFINE_ATTR_VAR(_name, _mode, _data, NULL, _set, true)
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#endif /* _PSMOUSE_H */
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