218 lines
7.4 KiB
C
218 lines
7.4 KiB
C
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/*
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* Synaptics TouchPad PS/2 mouse driver
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*/
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#ifndef _SYNAPTICS_H
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#define _SYNAPTICS_H
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/* synaptics queries */
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#define SYN_QUE_IDENTIFY 0x00
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#define SYN_QUE_MODES 0x01
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#define SYN_QUE_CAPABILITIES 0x02
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#define SYN_QUE_MODEL 0x03
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#define SYN_QUE_SERIAL_NUMBER_PREFIX 0x06
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#define SYN_QUE_SERIAL_NUMBER_SUFFIX 0x07
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#define SYN_QUE_RESOLUTION 0x08
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#define SYN_QUE_EXT_CAPAB 0x09
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#define SYN_QUE_FIRMWARE_ID 0x0a
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#define SYN_QUE_EXT_CAPAB_0C 0x0c
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#define SYN_QUE_EXT_MAX_COORDS 0x0d
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#define SYN_QUE_EXT_MIN_COORDS 0x0f
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#define SYN_QUE_MEXT_CAPAB_10 0x10
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/* synatics modes */
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#define SYN_BIT_ABSOLUTE_MODE BIT(7)
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#define SYN_BIT_HIGH_RATE BIT(6)
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#define SYN_BIT_SLEEP_MODE BIT(3)
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#define SYN_BIT_DISABLE_GESTURE BIT(2)
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#define SYN_BIT_FOUR_BYTE_CLIENT BIT(1)
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#define SYN_BIT_W_MODE BIT(0)
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/* synaptics model ID bits */
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#define SYN_MODEL_ROT180(m) ((m) & BIT(23))
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#define SYN_MODEL_PORTRAIT(m) ((m) & BIT(22))
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#define SYN_MODEL_SENSOR(m) (((m) & GENMASK(21, 16)) >> 16)
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#define SYN_MODEL_HARDWARE(m) (((m) & GENMASK(15, 9)) >> 9)
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#define SYN_MODEL_NEWABS(m) ((m) & BIT(7))
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#define SYN_MODEL_PEN(m) ((m) & BIT(6))
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#define SYN_MODEL_SIMPLIC(m) ((m) & BIT(5))
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#define SYN_MODEL_GEOMETRY(m) ((m) & GENMASK(3, 0))
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/* synaptics capability bits */
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#define SYN_CAP_EXTENDED(c) ((c) & BIT(23))
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#define SYN_CAP_MIDDLE_BUTTON(c) ((c) & BIT(18))
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#define SYN_CAP_PASS_THROUGH(c) ((c) & BIT(7))
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#define SYN_CAP_SLEEP(c) ((c) & BIT(4))
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#define SYN_CAP_FOUR_BUTTON(c) ((c) & BIT(3))
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#define SYN_CAP_MULTIFINGER(c) ((c) & BIT(1))
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#define SYN_CAP_PALMDETECT(c) ((c) & BIT(0))
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#define SYN_CAP_SUBMODEL_ID(c) (((c) & GENMASK(15, 8)) >> 8)
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#define SYN_EXT_CAP_REQUESTS(c) (((c) & GENMASK(22, 20)) >> 20)
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#define SYN_CAP_MB_MASK GENMASK(15, 12)
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#define SYN_CAP_MULTI_BUTTON_NO(ec) (((ec) & SYN_CAP_MB_MASK) >> 12)
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#define SYN_CAP_PRODUCT_ID(ec) (((ec) & GENMASK(23, 16)) >> 16)
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#define SYN_MEXT_CAP_BIT(m) ((m) & BIT(1))
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/*
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* The following describes response for the 0x0c query.
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*
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* byte mask name meaning
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* ---- ---- ------- ------------
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* 1 0x01 adjustable threshold capacitive button sensitivity
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* can be adjusted
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* 1 0x02 report max query 0x0d gives max coord reported
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* 1 0x04 clearpad sensor is ClearPad product
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* 1 0x08 advanced gesture not particularly meaningful
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* 1 0x10 clickpad bit 0 1-button ClickPad
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* 1 0x60 multifinger mode identifies firmware finger counting
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* (not reporting!) algorithm.
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* Not particularly meaningful
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* 1 0x80 covered pad W clipped to 14, 15 == pad mostly covered
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* 2 0x01 clickpad bit 1 2-button ClickPad
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* 2 0x02 deluxe LED controls touchpad support LED commands
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* ala multimedia control bar
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* 2 0x04 reduced filtering firmware does less filtering on
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* position data, driver should watch
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* for noise.
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* 2 0x08 image sensor image sensor tracks 5 fingers, but only
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* reports 2.
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* 2 0x01 uniform clickpad whole clickpad moves instead of being
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* hinged at the top.
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* 2 0x20 report min query 0x0f gives min coord reported
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*/
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#define SYN_CAP_CLICKPAD(ex0c) ((ex0c) & BIT(20)) /* 1-button ClickPad */
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#define SYN_CAP_CLICKPAD2BTN(ex0c) ((ex0c) & BIT(8)) /* 2-button ClickPad */
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#define SYN_CAP_MAX_DIMENSIONS(ex0c) ((ex0c) & BIT(17))
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#define SYN_CAP_MIN_DIMENSIONS(ex0c) ((ex0c) & BIT(13))
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#define SYN_CAP_ADV_GESTURE(ex0c) ((ex0c) & BIT(19))
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#define SYN_CAP_REDUCED_FILTERING(ex0c) ((ex0c) & BIT(10))
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#define SYN_CAP_IMAGE_SENSOR(ex0c) ((ex0c) & BIT(11))
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#define SYN_CAP_INTERTOUCH(ex0c) ((ex0c) & BIT(14))
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/*
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* The following descibes response for the 0x10 query.
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*
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* byte mask name meaning
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* ---- ---- ------- ------------
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* 1 0x01 ext buttons are stick buttons exported in the extended
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* capability are actually meant to be used
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* by the tracktick (pass-through).
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* 1 0x02 SecurePad the touchpad is a SecurePad, so it
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* contains a built-in fingerprint reader.
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* 1 0xe0 more ext count how many more extented queries are
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* available after this one.
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* 2 0xff SecurePad width the width of the SecurePad fingerprint
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* reader.
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* 3 0xff SecurePad height the height of the SecurePad fingerprint
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* reader.
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*/
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#define SYN_CAP_EXT_BUTTONS_STICK(ex10) ((ex10) & BIT(16))
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#define SYN_CAP_SECUREPAD(ex10) ((ex10) & BIT(17))
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#define SYN_EXT_BUTTON_STICK_L(eb) (((eb) & BIT(0)) >> 0)
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#define SYN_EXT_BUTTON_STICK_M(eb) (((eb) & BIT(1)) >> 1)
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#define SYN_EXT_BUTTON_STICK_R(eb) (((eb) & BIT(2)) >> 2)
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/* synaptics modes query bits */
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#define SYN_MODE_ABSOLUTE(m) ((m) & BIT(7))
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#define SYN_MODE_RATE(m) ((m) & BIT(6))
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#define SYN_MODE_BAUD_SLEEP(m) ((m) & BIT(3))
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#define SYN_MODE_DISABLE_GESTURE(m) ((m) & BIT(2))
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#define SYN_MODE_PACKSIZE(m) ((m) & BIT(1))
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#define SYN_MODE_WMODE(m) ((m) & BIT(0))
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/* synaptics identify query bits */
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#define SYN_ID_MODEL(i) (((i) & GENMASK(7, 4)) >> 4)
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#define SYN_ID_MAJOR(i) (((i) & GENMASK(3, 0)) >> 0)
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#define SYN_ID_MINOR(i) (((i) & GENMASK(23, 16)) >> 16)
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#define SYN_ID_FULL(i) ((SYN_ID_MAJOR(i) << 8) | SYN_ID_MINOR(i))
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#define SYN_ID_IS_SYNAPTICS(i) (((i) & GENMASK(15, 8)) == 0x004700U)
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#define SYN_ID_DISGEST_SUPPORTED(i) (SYN_ID_MAJOR(i) >= 4)
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/* synaptics special commands */
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#define SYN_PS_SET_MODE2 0x14
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#define SYN_PS_CLIENT_CMD 0x28
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/* amount to fuzz position data when touchpad reports reduced filtering */
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#define SYN_REDUCED_FILTER_FUZZ 8
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/* synaptics packet types */
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enum synaptics_pkt_type {
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SYN_NEWABS,
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SYN_NEWABS_STRICT,
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SYN_NEWABS_RELAXED,
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SYN_OLDABS,
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};
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/*
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* A structure to describe the state of the touchpad hardware (buttons and pad)
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*/
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struct synaptics_hw_state {
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int x;
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int y;
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int z;
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int w;
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unsigned int left:1;
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unsigned int right:1;
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unsigned int middle:1;
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unsigned int up:1;
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unsigned int down:1;
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u8 ext_buttons;
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s8 scroll;
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};
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/* Data read from the touchpad */
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struct synaptics_device_info {
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u32 model_id; /* Model-ID */
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u32 firmware_id; /* Firmware-ID */
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u32 board_id; /* Board-ID */
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u32 capabilities; /* Capabilities */
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u32 ext_cap; /* Extended Capabilities */
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u32 ext_cap_0c; /* Ext Caps from 0x0c query */
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u32 ext_cap_10; /* Ext Caps from 0x10 query */
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u32 identity; /* Identification */
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u32 x_res, y_res; /* X/Y resolution in units/mm */
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u32 x_max, y_max; /* Max coordinates (from FW) */
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u32 x_min, y_min; /* Min coordinates (from FW) */
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};
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struct synaptics_data {
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struct synaptics_device_info info;
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enum synaptics_pkt_type pkt_type; /* packet type - old, new, etc */
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u8 mode; /* current mode byte */
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int scroll;
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bool absolute_mode; /* run in Absolute mode */
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bool disable_gesture; /* disable gestures */
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struct serio *pt_port; /* Pass-through serio port */
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/*
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* Last received Advanced Gesture Mode (AGM) packet. An AGM packet
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* contains position data for a second contact, at half resolution.
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*/
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struct synaptics_hw_state agm;
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unsigned int agm_count; /* finger count reported by agm */
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/* ForcePad handling */
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unsigned long press_start;
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bool press;
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bool report_press;
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bool is_forcepad;
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};
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void synaptics_module_init(void);
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int synaptics_detect(struct psmouse *psmouse, bool set_properties);
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int synaptics_init_absolute(struct psmouse *psmouse);
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int synaptics_init_relative(struct psmouse *psmouse);
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int synaptics_init_smbus(struct psmouse *psmouse);
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int synaptics_init(struct psmouse *psmouse);
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void synaptics_reset(struct psmouse *psmouse);
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#endif /* _SYNAPTICS_H */
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