drivers/input/mouse/alps.h - kernel/bruno - Git at Google

 /*
  * ALPS touchpad PS/2 mouse driver
  *
  * Copyright (c) 2003 Peter Osterlund <petero2@telia.com>
  * Copyright (c) 2005 Vojtech Pavlik <vojtech@suse.cz>
  *
  * 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 _ALPS_H
 #define _ALPS_H

 #include <linux/input/mt.h>

 #define ALPS_PROTO_V1	1
 #define ALPS_PROTO_V2	2
 #define ALPS_PROTO_V3	3
 #define ALPS_PROTO_V4	4
 #define ALPS_PROTO_V5	5
 #define ALPS_PROTO_V6	6
 #define ALPS_PROTO_V7	7	/* t3btl t4s */

 #define MAX_TOUCHES	2

 #define DOLPHIN_COUNT_PER_ELECTRODE	64
 #define DOLPHIN_PROFILE_XOFFSET		8	/* x-electrode offset */
 #define DOLPHIN_PROFILE_YOFFSET		1	/* y-electrode offset */

 /*
  * enum V7_PACKET_ID - defines the packet type for V7
  * V7_PACKET_ID_IDLE: There's no finger and no button activity.
  * V7_PACKET_ID_TWO: There's one or two non-resting fingers on touchpad
  *  or there's button activities.
  * V7_PACKET_ID_MULTI: There are at least three non-resting fingers.
  * V7_PACKET_ID_NEW: The finger position in slot is not continues from
  *  previous packet.
 */
 enum V7_PACKET_ID {
 	 V7_PACKET_ID_IDLE,
 	 V7_PACKET_ID_TWO,
 	 V7_PACKET_ID_MULTI,
 	 V7_PACKET_ID_NEW,
 	 V7_PACKET_ID_UNKNOWN,
 };

 /**
  * struct alps_model_info - touchpad ID table
  * @signature: E7 response string to match.
  * @command_mode_resp: For V3/V4 touchpads, the final byte of the EC response
  *   (aka command mode response) identifies the firmware minor version.  This
  *   can be used to distinguish different hardware models which are not
  *   uniquely identifiable through their E7 responses.
  * @proto_version: Indicates V1/V2/V3/...
  * @byte0: Helps figure out whether a position report packet matches the
  *   known format for this model.  The first byte of the report, ANDed with
  *   mask0, should match byte0.
  * @mask0: The mask used to check the first byte of the report.
  * @flags: Additional device capabilities (passthrough port, trackstick, etc.).
  *
  * Many (but not all) ALPS touchpads can be identified by looking at the
  * values returned in the "E7 report" and/or the "EC report."  This table
  * lists a number of such touchpads.
  */
 struct alps_model_info {
 	unsigned char signature[3];
 	unsigned char command_mode_resp;
 	unsigned char proto_version;
 	unsigned char byte0, mask0;
 	int flags;
 };

 /**
  * struct alps_nibble_commands - encodings for register accesses
  * @command: PS/2 command used for the nibble
  * @data: Data supplied as an argument to the PS/2 command, if applicable
  *
  * The ALPS protocol uses magic sequences to transmit binary data to the
  * touchpad, as it is generally not OK to send arbitrary bytes out the
  * PS/2 port.  Each of the sequences in this table sends one nibble of the
  * register address or (write) data.  Different versions of the ALPS protocol
  * use slightly different encodings.
  */
 struct alps_nibble_commands {
 	int command;
 	unsigned char data;
 };

 struct alps_bitmap_point {
 	int start_bit;
 	int num_bits;
 };

 /**
  * struct alps_fields - decoded version of the report packet
  * @x_map: Bitmap of active X positions for MT.
  * @y_map: Bitmap of active Y positions for MT.
  * @fingers: Number of fingers for MT.
  * @pressure: Pressure.
  * @st: position for ST.
  * @mt: position for MT.
  * @first_mp: Packet is the first of a multi-packet report.
  * @is_mp: Packet is part of a multi-packet report.
  * @left: Left touchpad button is active.
  * @right: Right touchpad button is active.
  * @middle: Middle touchpad button is active.
  * @ts_left: Left trackstick button is active.
  * @ts_right: Right trackstick button is active.
  * @ts_middle: Middle trackstick button is active.
  */
 struct alps_fields {
 	unsigned int x_map;
 	unsigned int y_map;
 	unsigned int fingers;

 	int pressure;
 	struct input_mt_pos st;
 	struct input_mt_pos mt[MAX_TOUCHES];

 	unsigned int first_mp:1;
 	unsigned int is_mp:1;

 	unsigned int left:1;
 	unsigned int right:1;
 	unsigned int middle:1;

 	unsigned int ts_left:1;
 	unsigned int ts_right:1;
 	unsigned int ts_middle:1;
 };

 /**
  * struct alps_data - private data structure for the ALPS driver
  * @dev2: "Relative" device used to report trackstick or mouse activity.
  * @phys: Physical path for the relative device.
  * @nibble_commands: Command mapping used for touchpad register accesses.
  * @addr_command: Command used to tell the touchpad that a register address
  *   follows.
  * @proto_version: Indicates V1/V2/V3/...
  * @byte0: Helps figure out whether a position report packet matches the
  *   known format for this model.  The first byte of the report, ANDed with
  *   mask0, should match byte0.
  * @mask0: The mask used to check the first byte of the report.
  * @fw_ver: cached copy of firmware version (EC report)
  * @flags: Additional device capabilities (passthrough port, trackstick, etc.).
  * @x_max: Largest possible X position value.
  * @y_max: Largest possible Y position value.
  * @x_bits: Number of X bits in the MT bitmap.
  * @y_bits: Number of Y bits in the MT bitmap.
  * @hw_init: Protocol-specific hardware init function.
  * @process_packet: Protocol-specific function to process a report packet.
  * @decode_fields: Protocol-specific function to read packet bitfields.
  * @set_abs_params: Protocol-specific function to configure the input_dev.
  * @prev_fin: Finger bit from previous packet.
  * @multi_packet: Multi-packet data in progress.
  * @multi_data: Saved multi-packet data.
  * @f: Decoded packet data fields.
  * @quirks: Bitmap of ALPS_QUIRK_*.
  * @timer: Timer for flushing out the final report packet in the stream.
  */
 struct alps_data {
 	struct input_dev *dev2;
 	char phys[32];

 	/* these are autodetected when the device is identified */
 	const struct alps_nibble_commands *nibble_commands;
 	int addr_command;
 	unsigned char proto_version;
 	unsigned char byte0, mask0;
 	unsigned char fw_ver[3];
 	int flags;
 	int x_max;
 	int y_max;
 	int x_bits;
 	int y_bits;
 	unsigned int x_res;
 	unsigned int y_res;

 	int (*hw_init)(struct psmouse *psmouse);
 	void (*process_packet)(struct psmouse *psmouse);
 	int (*decode_fields)(struct alps_fields *f, unsigned char *p,
 			      struct psmouse *psmouse);
 	void (*set_abs_params)(struct alps_data *priv, struct input_dev *dev1);

 	int prev_fin;
 	int multi_packet;
 	unsigned char multi_data[6];
 	struct alps_fields f;
 	u8 quirks;
 	struct timer_list timer;
 };

 #define ALPS_QUIRK_TRACKSTICK_BUTTONS	1 /* trakcstick buttons in trackstick packet */

 #ifdef CONFIG_MOUSE_PS2_ALPS
 int alps_detect(struct psmouse *psmouse, bool set_properties);
 int alps_init(struct psmouse *psmouse);
 #else
 inline int alps_detect(struct psmouse *psmouse, bool set_properties)
 {
 	return -ENOSYS;
 }
 inline int alps_init(struct psmouse *psmouse)
 {
 	return -ENOSYS;
 }
 #endif /* CONFIG_MOUSE_PS2_ALPS */

 #endif
	/*
	* ALPS touchpad PS/2 mouse driver
	*
	* Copyright (c) 2003 Peter Osterlund <petero2@telia.com>
	* Copyright (c) 2005 Vojtech Pavlik <vojtech@suse.cz>
	*
	* 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 _ALPS_H
	#define _ALPS_H

	#include <linux/input/mt.h>

	#define ALPS_PROTO_V1 1
	#define ALPS_PROTO_V2 2
	#define ALPS_PROTO_V3 3
	#define ALPS_PROTO_V4 4
	#define ALPS_PROTO_V5 5
	#define ALPS_PROTO_V6 6
	#define ALPS_PROTO_V7 7 /* t3btl t4s */

	#define MAX_TOUCHES 2

	#define DOLPHIN_COUNT_PER_ELECTRODE 64
	#define DOLPHIN_PROFILE_XOFFSET 8 /* x-electrode offset */
	#define DOLPHIN_PROFILE_YOFFSET 1 /* y-electrode offset */

	/*
	* enum V7_PACKET_ID - defines the packet type for V7
	* V7_PACKET_ID_IDLE: There's no finger and no button activity.
	* V7_PACKET_ID_TWO: There's one or two non-resting fingers on touchpad
	* or there's button activities.
	* V7_PACKET_ID_MULTI: There are at least three non-resting fingers.
	* V7_PACKET_ID_NEW: The finger position in slot is not continues from
	* previous packet.
	*/
	enum V7_PACKET_ID {
	V7_PACKET_ID_IDLE,
	V7_PACKET_ID_TWO,
	V7_PACKET_ID_MULTI,
	V7_PACKET_ID_NEW,
	V7_PACKET_ID_UNKNOWN,
	};

	/**
	* struct alps_model_info - touchpad ID table
	* @signature: E7 response string to match.
	* @command_mode_resp: For V3/V4 touchpads, the final byte of the EC response
	* (aka command mode response) identifies the firmware minor version. This
	* can be used to distinguish different hardware models which are not
	* uniquely identifiable through their E7 responses.
	* @proto_version: Indicates V1/V2/V3/...
	* @byte0: Helps figure out whether a position report packet matches the
	* known format for this model. The first byte of the report, ANDed with
	* mask0, should match byte0.
	* @mask0: The mask used to check the first byte of the report.
	* @flags: Additional device capabilities (passthrough port, trackstick, etc.).
	*
	* Many (but not all) ALPS touchpads can be identified by looking at the
	* values returned in the "E7 report" and/or the "EC report." This table
	* lists a number of such touchpads.
	*/
	struct alps_model_info {
	unsigned char signature[3];
	unsigned char command_mode_resp;
	unsigned char proto_version;
	unsigned char byte0, mask0;
	int flags;
	};

	/**
	* struct alps_nibble_commands - encodings for register accesses
	* @command: PS/2 command used for the nibble
	* @data: Data supplied as an argument to the PS/2 command, if applicable
	*
	* The ALPS protocol uses magic sequences to transmit binary data to the
	* touchpad, as it is generally not OK to send arbitrary bytes out the
	* PS/2 port. Each of the sequences in this table sends one nibble of the
	* register address or (write) data. Different versions of the ALPS protocol
	* use slightly different encodings.
	*/
	struct alps_nibble_commands {
	int command;
	unsigned char data;
	};

	struct alps_bitmap_point {
	int start_bit;
	int num_bits;
	};

	/**
	* struct alps_fields - decoded version of the report packet
	* @x_map: Bitmap of active X positions for MT.
	* @y_map: Bitmap of active Y positions for MT.
	* @fingers: Number of fingers for MT.
	* @pressure: Pressure.
	* @st: position for ST.
	* @mt: position for MT.
	* @first_mp: Packet is the first of a multi-packet report.
	* @is_mp: Packet is part of a multi-packet report.
	* @left: Left touchpad button is active.
	* @right: Right touchpad button is active.
	* @middle: Middle touchpad button is active.
	* @ts_left: Left trackstick button is active.
	* @ts_right: Right trackstick button is active.
	* @ts_middle: Middle trackstick button is active.
	*/
	struct alps_fields {
	unsigned int x_map;
	unsigned int y_map;
	unsigned int fingers;

	int pressure;
	struct input_mt_pos st;
	struct input_mt_pos mt[MAX_TOUCHES];

	unsigned int first_mp:1;
	unsigned int is_mp:1;

	unsigned int left:1;
	unsigned int right:1;
	unsigned int middle:1;

	unsigned int ts_left:1;
	unsigned int ts_right:1;
	unsigned int ts_middle:1;
	};

	/**
	* struct alps_data - private data structure for the ALPS driver
	* @dev2: "Relative" device used to report trackstick or mouse activity.
	* @phys: Physical path for the relative device.
	* @nibble_commands: Command mapping used for touchpad register accesses.
	* @addr_command: Command used to tell the touchpad that a register address
	* follows.
	* @proto_version: Indicates V1/V2/V3/...
	* @byte0: Helps figure out whether a position report packet matches the
	* known format for this model. The first byte of the report, ANDed with
	* mask0, should match byte0.
	* @mask0: The mask used to check the first byte of the report.
	* @fw_ver: cached copy of firmware version (EC report)
	* @flags: Additional device capabilities (passthrough port, trackstick, etc.).
	* @x_max: Largest possible X position value.
	* @y_max: Largest possible Y position value.
	* @x_bits: Number of X bits in the MT bitmap.
	* @y_bits: Number of Y bits in the MT bitmap.
	* @hw_init: Protocol-specific hardware init function.
	* @process_packet: Protocol-specific function to process a report packet.
	* @decode_fields: Protocol-specific function to read packet bitfields.
	* @set_abs_params: Protocol-specific function to configure the input_dev.
	* @prev_fin: Finger bit from previous packet.
	* @multi_packet: Multi-packet data in progress.
	* @multi_data: Saved multi-packet data.
	* @f: Decoded packet data fields.
	* @quirks: Bitmap of ALPS_QUIRK_*.
	* @timer: Timer for flushing out the final report packet in the stream.
	*/
	struct alps_data {
	struct input_dev *dev2;
	char phys[32];

	/* these are autodetected when the device is identified */
	const struct alps_nibble_commands *nibble_commands;
	int addr_command;
	unsigned char proto_version;
	unsigned char byte0, mask0;
	unsigned char fw_ver[3];
	int flags;
	int x_max;
	int y_max;
	int x_bits;
	int y_bits;
	unsigned int x_res;
	unsigned int y_res;

	int (hw_init)(struct psmouse psmouse);
	void (process_packet)(struct psmouse psmouse);
	int (decode_fields)(struct alps_fields f, unsigned char *p,
	struct psmouse *psmouse);
	void (set_abs_params)(struct alps_data priv, struct input_dev *dev1);

	int prev_fin;
	int multi_packet;
	unsigned char multi_data[6];
	struct alps_fields f;
	u8 quirks;
	struct timer_list timer;
	};

	#define ALPS_QUIRK_TRACKSTICK_BUTTONS 1 /* trakcstick buttons in trackstick packet */

	#ifdef CONFIG_MOUSE_PS2_ALPS
	int alps_detect(struct psmouse *psmouse, bool set_properties);
	int alps_init(struct psmouse *psmouse);
	#else
	inline int alps_detect(struct psmouse *psmouse, bool set_properties)
	{
	return -ENOSYS;
	}
	inline int alps_init(struct psmouse *psmouse)
	{
	return -ENOSYS;
	}
	#endif /* CONFIG_MOUSE_PS2_ALPS */

	#endif