drivers/input/mouse/synaptics.h - kernel/mindspeed - Git at Google

 /*
  * Synaptics TouchPad PS/2 mouse driver
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 as published by
  * the Free Software Foundation.
  */

 #ifndef _SYNAPTICS_H
 #define _SYNAPTICS_H

 /* synaptics queries */
 #define SYN_QUE_IDENTIFY		0x00
 #define SYN_QUE_MODES			0x01
 #define SYN_QUE_CAPABILITIES		0x02
 #define SYN_QUE_MODEL			0x03
 #define SYN_QUE_SERIAL_NUMBER_PREFIX	0x06
 #define SYN_QUE_SERIAL_NUMBER_SUFFIX	0x07
 #define SYN_QUE_RESOLUTION		0x08
 #define SYN_QUE_EXT_CAPAB		0x09
 #define SYN_QUE_EXT_CAPAB_0C		0x0c
 #define SYN_QUE_EXT_MAX_COORDS		0x0d
 #define SYN_QUE_EXT_MIN_COORDS		0x0f

 /* synatics modes */
 #define SYN_BIT_ABSOLUTE_MODE		(1 << 7)
 #define SYN_BIT_HIGH_RATE		(1 << 6)
 #define SYN_BIT_SLEEP_MODE		(1 << 3)
 #define SYN_BIT_DISABLE_GESTURE		(1 << 2)
 #define SYN_BIT_FOUR_BYTE_CLIENT	(1 << 1)
 #define SYN_BIT_W_MODE			(1 << 0)

 /* synaptics model ID bits */
 #define SYN_MODEL_ROT180(m)		((m) & (1 << 23))
 #define SYN_MODEL_PORTRAIT(m)		((m) & (1 << 22))
 #define SYN_MODEL_SENSOR(m)		(((m) >> 16) & 0x3f)
 #define SYN_MODEL_HARDWARE(m)		(((m) >> 9) & 0x7f)
 #define SYN_MODEL_NEWABS(m)		((m) & (1 << 7))
 #define SYN_MODEL_PEN(m)		((m) & (1 << 6))
 #define SYN_MODEL_SIMPLIC(m)		((m) & (1 << 5))
 #define SYN_MODEL_GEOMETRY(m)		((m) & 0x0f)

 /* synaptics capability bits */
 #define SYN_CAP_EXTENDED(c)		((c) & (1 << 23))
 #define SYN_CAP_MIDDLE_BUTTON(c)	((c) & (1 << 18))
 #define SYN_CAP_PASS_THROUGH(c)		((c) & (1 << 7))
 #define SYN_CAP_SLEEP(c)		((c) & (1 << 4))
 #define SYN_CAP_FOUR_BUTTON(c)		((c) & (1 << 3))
 #define SYN_CAP_MULTIFINGER(c)		((c) & (1 << 1))
 #define SYN_CAP_PALMDETECT(c)		((c) & (1 << 0))
 #define SYN_CAP_SUBMODEL_ID(c)		(((c) & 0x00ff00) >> 8)
 #define SYN_EXT_CAP_REQUESTS(c)		(((c) & 0x700000) >> 20)
 #define SYN_CAP_MULTI_BUTTON_NO(ec)	(((ec) & 0x00f000) >> 12)
 #define SYN_CAP_PRODUCT_ID(ec)		(((ec) & 0xff0000) >> 16)

 /*
  * The following describes response for the 0x0c query.
  *
  * byte	mask	name			meaning
  * ----	----	-------			------------
  * 1	0x01	adjustable threshold	capacitive button sensitivity
  *					can be adjusted
  * 1	0x02	report max		query 0x0d gives max coord reported
  * 1	0x04	clearpad		sensor is ClearPad product
  * 1	0x08	advanced gesture	not particularly meaningful
  * 1	0x10	clickpad bit 0		1-button ClickPad
  * 1	0x60	multifinger mode	identifies firmware finger counting
  *					(not reporting!) algorithm.
  *					Not particularly meaningful
  * 1	0x80	covered pad		W clipped to 14, 15 == pad mostly covered
  * 2	0x01	clickpad bit 1		2-button ClickPad
  * 2	0x02	deluxe LED controls	touchpad support LED commands
  *					ala multimedia control bar
  * 2	0x04	reduced filtering	firmware does less filtering on
  *					position data, driver should watch
  *					for noise.
  * 2	0x08	image sensor		image sensor tracks 5 fingers, but only
  *					reports 2.
  * 2	0x20	report min		query 0x0f gives min coord reported
  */
 #define SYN_CAP_CLICKPAD(ex0c)		((ex0c) & 0x100000) /* 1-button ClickPad */
 #define SYN_CAP_CLICKPAD2BTN(ex0c)	((ex0c) & 0x000100) /* 2-button ClickPad */
 #define SYN_CAP_MAX_DIMENSIONS(ex0c)	((ex0c) & 0x020000)
 #define SYN_CAP_MIN_DIMENSIONS(ex0c)	((ex0c) & 0x002000)
 #define SYN_CAP_ADV_GESTURE(ex0c)	((ex0c) & 0x080000)
 #define SYN_CAP_REDUCED_FILTERING(ex0c)	((ex0c) & 0x000400)
 #define SYN_CAP_IMAGE_SENSOR(ex0c)	((ex0c) & 0x000800)

 /* synaptics modes query bits */
 #define SYN_MODE_ABSOLUTE(m)		((m) & (1 << 7))
 #define SYN_MODE_RATE(m)		((m) & (1 << 6))
 #define SYN_MODE_BAUD_SLEEP(m)		((m) & (1 << 3))
 #define SYN_MODE_DISABLE_GESTURE(m)	((m) & (1 << 2))
 #define SYN_MODE_PACKSIZE(m)		((m) & (1 << 1))
 #define SYN_MODE_WMODE(m)		((m) & (1 << 0))

 /* synaptics identify query bits */
 #define SYN_ID_MODEL(i)			(((i) >> 4) & 0x0f)
 #define SYN_ID_MAJOR(i)			((i) & 0x0f)
 #define SYN_ID_MINOR(i)			(((i) >> 16) & 0xff)
 #define SYN_ID_FULL(i)			((SYN_ID_MAJOR(i) << 8) | SYN_ID_MINOR(i))
 #define SYN_ID_IS_SYNAPTICS(i)		((((i) >> 8) & 0xff) == 0x47)

 /* synaptics special commands */
 #define SYN_PS_SET_MODE2		0x14
 #define SYN_PS_CLIENT_CMD		0x28

 /* synaptics packet types */
 #define SYN_NEWABS			0
 #define SYN_NEWABS_STRICT		1
 #define SYN_NEWABS_RELAXED		2
 #define SYN_OLDABS			3

 /* amount to fuzz position data when touchpad reports reduced filtering */
 #define SYN_REDUCED_FILTER_FUZZ		8

 /*
  * A structure to describe which internal touchpad finger slots are being
  * reported in raw packets.
  */
 struct synaptics_mt_state {
 	int count;			/* num fingers being tracked */
 	int sgm;			/* which slot is reported by sgm pkt */
 	int agm;			/* which slot is reported by agm pkt*/
 };

 /*
  * A structure to describe the state of the touchpad hardware (buttons and pad)
  */
 struct synaptics_hw_state {
 	int x;
 	int y;
 	int z;
 	int w;
 	unsigned int left:1;
 	unsigned int right:1;
 	unsigned int middle:1;
 	unsigned int up:1;
 	unsigned int down:1;
 	unsigned char ext_buttons;
 	signed char scroll;

 	/* As reported in last AGM-CONTACT packets */
 	struct synaptics_mt_state mt_state;
 };

 struct synaptics_data {
 	/* Data read from the touchpad */
 	unsigned long int model_id;		/* Model-ID */
 	unsigned long int capabilities;		/* Capabilities */
 	unsigned long int ext_cap;		/* Extended Capabilities */
 	unsigned long int ext_cap_0c;		/* Ext Caps from 0x0c query */
 	unsigned long int identity;		/* Identification */
 	unsigned int x_res, y_res;		/* X/Y resolution in units/mm */
 	unsigned int x_max, y_max;		/* Max coordinates (from FW) */
 	unsigned int x_min, y_min;		/* Min coordinates (from FW) */

 	unsigned char pkt_type;			/* packet type - old, new, etc */
 	unsigned char mode;			/* current mode byte */
 	int scroll;

 	struct serio *pt_port;			/* Pass-through serio port */

 	struct synaptics_mt_state mt_state;	/* Current mt finger state */
 	bool mt_state_lost;			/* mt_state may be incorrect */

 	/*
 	 * Last received Advanced Gesture Mode (AGM) packet. An AGM packet
 	 * contains position data for a second contact, at half resolution.
 	 */
 	struct synaptics_hw_state agm;
 	bool agm_pending;			/* new AGM packet received */
 };

 void synaptics_module_init(void);
 int synaptics_detect(struct psmouse *psmouse, bool set_properties);
 int synaptics_init(struct psmouse *psmouse);
 void synaptics_reset(struct psmouse *psmouse);
 bool synaptics_supported(void);

 #endif /* _SYNAPTICS_H */
	/*
	* Synaptics TouchPad PS/2 mouse driver
	*
	* This program is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 as published by
	* the Free Software Foundation.
	*/

	#ifndef _SYNAPTICS_H
	#define _SYNAPTICS_H

	/* synaptics queries */
	#define SYN_QUE_IDENTIFY 0x00
	#define SYN_QUE_MODES 0x01
	#define SYN_QUE_CAPABILITIES 0x02
	#define SYN_QUE_MODEL 0x03
	#define SYN_QUE_SERIAL_NUMBER_PREFIX 0x06
	#define SYN_QUE_SERIAL_NUMBER_SUFFIX 0x07
	#define SYN_QUE_RESOLUTION 0x08
	#define SYN_QUE_EXT_CAPAB 0x09
	#define SYN_QUE_EXT_CAPAB_0C 0x0c
	#define SYN_QUE_EXT_MAX_COORDS 0x0d
	#define SYN_QUE_EXT_MIN_COORDS 0x0f

	/* synatics modes */
	#define SYN_BIT_ABSOLUTE_MODE (1 << 7)
	#define SYN_BIT_HIGH_RATE (1 << 6)
	#define SYN_BIT_SLEEP_MODE (1 << 3)
	#define SYN_BIT_DISABLE_GESTURE (1 << 2)
	#define SYN_BIT_FOUR_BYTE_CLIENT (1 << 1)
	#define SYN_BIT_W_MODE (1 << 0)

	/* synaptics model ID bits */
	#define SYN_MODEL_ROT180(m) ((m) & (1 << 23))
	#define SYN_MODEL_PORTRAIT(m) ((m) & (1 << 22))
	#define SYN_MODEL_SENSOR(m) (((m) >> 16) & 0x3f)
	#define SYN_MODEL_HARDWARE(m) (((m) >> 9) & 0x7f)
	#define SYN_MODEL_NEWABS(m) ((m) & (1 << 7))
	#define SYN_MODEL_PEN(m) ((m) & (1 << 6))
	#define SYN_MODEL_SIMPLIC(m) ((m) & (1 << 5))
	#define SYN_MODEL_GEOMETRY(m) ((m) & 0x0f)

	/* synaptics capability bits */
	#define SYN_CAP_EXTENDED(c) ((c) & (1 << 23))
	#define SYN_CAP_MIDDLE_BUTTON(c) ((c) & (1 << 18))
	#define SYN_CAP_PASS_THROUGH(c) ((c) & (1 << 7))
	#define SYN_CAP_SLEEP(c) ((c) & (1 << 4))
	#define SYN_CAP_FOUR_BUTTON(c) ((c) & (1 << 3))
	#define SYN_CAP_MULTIFINGER(c) ((c) & (1 << 1))
	#define SYN_CAP_PALMDETECT(c) ((c) & (1 << 0))
	#define SYN_CAP_SUBMODEL_ID(c) (((c) & 0x00ff00) >> 8)
	#define SYN_EXT_CAP_REQUESTS(c) (((c) & 0x700000) >> 20)
	#define SYN_CAP_MULTI_BUTTON_NO(ec) (((ec) & 0x00f000) >> 12)
	#define SYN_CAP_PRODUCT_ID(ec) (((ec) & 0xff0000) >> 16)

	/*
	* The following describes response for the 0x0c query.
	*
	* byte mask name meaning
	* ---- ---- ------- ------------
	* 1 0x01 adjustable threshold capacitive button sensitivity
	* can be adjusted
	* 1 0x02 report max query 0x0d gives max coord reported
	* 1 0x04 clearpad sensor is ClearPad product
	* 1 0x08 advanced gesture not particularly meaningful
	* 1 0x10 clickpad bit 0 1-button ClickPad
	* 1 0x60 multifinger mode identifies firmware finger counting
	* (not reporting!) algorithm.
	* Not particularly meaningful
	* 1 0x80 covered pad W clipped to 14, 15 == pad mostly covered
	* 2 0x01 clickpad bit 1 2-button ClickPad
	* 2 0x02 deluxe LED controls touchpad support LED commands
	* ala multimedia control bar
	* 2 0x04 reduced filtering firmware does less filtering on
	* position data, driver should watch
	* for noise.
	* 2 0x08 image sensor image sensor tracks 5 fingers, but only
	* reports 2.
	* 2 0x20 report min query 0x0f gives min coord reported
	*/
	#define SYN_CAP_CLICKPAD(ex0c) ((ex0c) & 0x100000) /* 1-button ClickPad */
	#define SYN_CAP_CLICKPAD2BTN(ex0c) ((ex0c) & 0x000100) /* 2-button ClickPad */
	#define SYN_CAP_MAX_DIMENSIONS(ex0c) ((ex0c) & 0x020000)
	#define SYN_CAP_MIN_DIMENSIONS(ex0c) ((ex0c) & 0x002000)
	#define SYN_CAP_ADV_GESTURE(ex0c) ((ex0c) & 0x080000)
	#define SYN_CAP_REDUCED_FILTERING(ex0c) ((ex0c) & 0x000400)
	#define SYN_CAP_IMAGE_SENSOR(ex0c) ((ex0c) & 0x000800)

	/* synaptics modes query bits */
	#define SYN_MODE_ABSOLUTE(m) ((m) & (1 << 7))
	#define SYN_MODE_RATE(m) ((m) & (1 << 6))
	#define SYN_MODE_BAUD_SLEEP(m) ((m) & (1 << 3))
	#define SYN_MODE_DISABLE_GESTURE(m) ((m) & (1 << 2))
	#define SYN_MODE_PACKSIZE(m) ((m) & (1 << 1))
	#define SYN_MODE_WMODE(m) ((m) & (1 << 0))

	/* synaptics identify query bits */
	#define SYN_ID_MODEL(i) (((i) >> 4) & 0x0f)
	#define SYN_ID_MAJOR(i) ((i) & 0x0f)
	#define SYN_ID_MINOR(i) (((i) >> 16) & 0xff)
	#define SYN_ID_FULL(i) ((SYN_ID_MAJOR(i) << 8) \| SYN_ID_MINOR(i))
	#define SYN_ID_IS_SYNAPTICS(i) ((((i) >> 8) & 0xff) == 0x47)

	/* synaptics special commands */
	#define SYN_PS_SET_MODE2 0x14
	#define SYN_PS_CLIENT_CMD 0x28

	/* synaptics packet types */
	#define SYN_NEWABS 0
	#define SYN_NEWABS_STRICT 1
	#define SYN_NEWABS_RELAXED 2
	#define SYN_OLDABS 3

	/* amount to fuzz position data when touchpad reports reduced filtering */
	#define SYN_REDUCED_FILTER_FUZZ 8

	/*
	* A structure to describe which internal touchpad finger slots are being
	* reported in raw packets.
	*/
	struct synaptics_mt_state {
	int count; /* num fingers being tracked */
	int sgm; /* which slot is reported by sgm pkt */
	int agm; /* which slot is reported by agm pkt*/
	};

	/*
	* A structure to describe the state of the touchpad hardware (buttons and pad)
	*/
	struct synaptics_hw_state {
	int x;
	int y;
	int z;
	int w;
	unsigned int left:1;
	unsigned int right:1;
	unsigned int middle:1;
	unsigned int up:1;
	unsigned int down:1;
	unsigned char ext_buttons;
	signed char scroll;

	/* As reported in last AGM-CONTACT packets */
	struct synaptics_mt_state mt_state;
	};

	struct synaptics_data {
	/* Data read from the touchpad */
	unsigned long int model_id; /* Model-ID */
	unsigned long int capabilities; /* Capabilities */
	unsigned long int ext_cap; /* Extended Capabilities */
	unsigned long int ext_cap_0c; /* Ext Caps from 0x0c query */
	unsigned long int identity; /* Identification */
	unsigned int x_res, y_res; /* X/Y resolution in units/mm */
	unsigned int x_max, y_max; /* Max coordinates (from FW) */
	unsigned int x_min, y_min; /* Min coordinates (from FW) */

	unsigned char pkt_type; /* packet type - old, new, etc */
	unsigned char mode; /* current mode byte */
	int scroll;

	struct serio pt_port; / Pass-through serio port */

	struct synaptics_mt_state mt_state; /* Current mt finger state */
	bool mt_state_lost; /* mt_state may be incorrect */

	/*
	* Last received Advanced Gesture Mode (AGM) packet. An AGM packet
	* contains position data for a second contact, at half resolution.
	*/
	struct synaptics_hw_state agm;
	bool agm_pending; /* new AGM packet received */
	};

	void synaptics_module_init(void);
	int synaptics_detect(struct psmouse *psmouse, bool set_properties);
	int synaptics_init(struct psmouse *psmouse);
	void synaptics_reset(struct psmouse *psmouse);
	bool synaptics_supported(void);

	#endif /* _SYNAPTICS_H */