linux/drivers/input/mouse/synaptics.h
Dmitry Torokhov f6c4442bfa Input: synaptics - use u8 instead of unsigned char
The rest of the kernel uses u8, u16, etc for data coming form hardware,
let's switch ti using u8 here as well.

Also turn pkt_type into an enum.

Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-03 16:23:58 -07:00

218 lines
7.4 KiB
C

/*
* 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_FIRMWARE_ID 0x0a
#define SYN_QUE_EXT_CAPAB_0C 0x0c
#define SYN_QUE_EXT_MAX_COORDS 0x0d
#define SYN_QUE_EXT_MIN_COORDS 0x0f
#define SYN_QUE_MEXT_CAPAB_10 0x10
/* synatics modes */
#define SYN_BIT_ABSOLUTE_MODE BIT(7)
#define SYN_BIT_HIGH_RATE BIT(6)
#define SYN_BIT_SLEEP_MODE BIT(3)
#define SYN_BIT_DISABLE_GESTURE BIT(2)
#define SYN_BIT_FOUR_BYTE_CLIENT BIT(1)
#define SYN_BIT_W_MODE BIT(0)
/* synaptics model ID bits */
#define SYN_MODEL_ROT180(m) ((m) & BIT(23))
#define SYN_MODEL_PORTRAIT(m) ((m) & BIT(22))
#define SYN_MODEL_SENSOR(m) (((m) & GENMASK(21, 16)) >> 16)
#define SYN_MODEL_HARDWARE(m) (((m) & GENMASK(15, 9)) >> 9)
#define SYN_MODEL_NEWABS(m) ((m) & BIT(7))
#define SYN_MODEL_PEN(m) ((m) & BIT(6))
#define SYN_MODEL_SIMPLIC(m) ((m) & BIT(5))
#define SYN_MODEL_GEOMETRY(m) ((m) & GENMASK(3, 0))
/* synaptics capability bits */
#define SYN_CAP_EXTENDED(c) ((c) & BIT(23))
#define SYN_CAP_MIDDLE_BUTTON(c) ((c) & BIT(18))
#define SYN_CAP_PASS_THROUGH(c) ((c) & BIT(7))
#define SYN_CAP_SLEEP(c) ((c) & BIT(4))
#define SYN_CAP_FOUR_BUTTON(c) ((c) & BIT(3))
#define SYN_CAP_MULTIFINGER(c) ((c) & BIT(1))
#define SYN_CAP_PALMDETECT(c) ((c) & BIT(0))
#define SYN_CAP_SUBMODEL_ID(c) (((c) & GENMASK(15, 8)) >> 8)
#define SYN_EXT_CAP_REQUESTS(c) (((c) & GENMASK(22, 20)) >> 20)
#define SYN_CAP_MB_MASK GENMASK(15, 12)
#define SYN_CAP_MULTI_BUTTON_NO(ec) (((ec) & SYN_CAP_MB_MASK) >> 12)
#define SYN_CAP_PRODUCT_ID(ec) (((ec) & GENMASK(23, 16)) >> 16)
#define SYN_MEXT_CAP_BIT(m) ((m) & BIT(1))
/*
* 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 0x01 uniform clickpad whole clickpad moves instead of being
* hinged at the top.
* 2 0x20 report min query 0x0f gives min coord reported
*/
#define SYN_CAP_CLICKPAD(ex0c) ((ex0c) & BIT(20)) /* 1-button ClickPad */
#define SYN_CAP_CLICKPAD2BTN(ex0c) ((ex0c) & BIT(8)) /* 2-button ClickPad */
#define SYN_CAP_MAX_DIMENSIONS(ex0c) ((ex0c) & BIT(17))
#define SYN_CAP_MIN_DIMENSIONS(ex0c) ((ex0c) & BIT(13))
#define SYN_CAP_ADV_GESTURE(ex0c) ((ex0c) & BIT(19))
#define SYN_CAP_REDUCED_FILTERING(ex0c) ((ex0c) & BIT(10))
#define SYN_CAP_IMAGE_SENSOR(ex0c) ((ex0c) & BIT(11))
#define SYN_CAP_INTERTOUCH(ex0c) ((ex0c) & BIT(14))
/*
* The following descibes response for the 0x10 query.
*
* byte mask name meaning
* ---- ---- ------- ------------
* 1 0x01 ext buttons are stick buttons exported in the extended
* capability are actually meant to be used
* by the tracktick (pass-through).
* 1 0x02 SecurePad the touchpad is a SecurePad, so it
* contains a built-in fingerprint reader.
* 1 0xe0 more ext count how many more extented queries are
* available after this one.
* 2 0xff SecurePad width the width of the SecurePad fingerprint
* reader.
* 3 0xff SecurePad height the height of the SecurePad fingerprint
* reader.
*/
#define SYN_CAP_EXT_BUTTONS_STICK(ex10) ((ex10) & BIT(16))
#define SYN_CAP_SECUREPAD(ex10) ((ex10) & BIT(17))
#define SYN_EXT_BUTTON_STICK_L(eb) (((eb) & BIT(0)) >> 0)
#define SYN_EXT_BUTTON_STICK_M(eb) (((eb) & BIT(1)) >> 1)
#define SYN_EXT_BUTTON_STICK_R(eb) (((eb) & BIT(2)) >> 2)
/* synaptics modes query bits */
#define SYN_MODE_ABSOLUTE(m) ((m) & BIT(7))
#define SYN_MODE_RATE(m) ((m) & BIT(6))
#define SYN_MODE_BAUD_SLEEP(m) ((m) & BIT(3))
#define SYN_MODE_DISABLE_GESTURE(m) ((m) & BIT(2))
#define SYN_MODE_PACKSIZE(m) ((m) & BIT(1))
#define SYN_MODE_WMODE(m) ((m) & BIT(0))
/* synaptics identify query bits */
#define SYN_ID_MODEL(i) (((i) & GENMASK(7, 4)) >> 4)
#define SYN_ID_MAJOR(i) (((i) & GENMASK(3, 0)) >> 0)
#define SYN_ID_MINOR(i) (((i) & GENMASK(23, 16)) >> 16)
#define SYN_ID_FULL(i) ((SYN_ID_MAJOR(i) << 8) | SYN_ID_MINOR(i))
#define SYN_ID_IS_SYNAPTICS(i) (((i) & GENMASK(15, 8)) == 0x004700U)
#define SYN_ID_DISGEST_SUPPORTED(i) (SYN_ID_MAJOR(i) >= 4)
/* synaptics special commands */
#define SYN_PS_SET_MODE2 0x14
#define SYN_PS_CLIENT_CMD 0x28
/* amount to fuzz position data when touchpad reports reduced filtering */
#define SYN_REDUCED_FILTER_FUZZ 8
/* synaptics packet types */
enum synaptics_pkt_type {
SYN_NEWABS,
SYN_NEWABS_STRICT,
SYN_NEWABS_RELAXED,
SYN_OLDABS,
};
/*
* 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;
u8 ext_buttons;
s8 scroll;
};
/* Data read from the touchpad */
struct synaptics_device_info {
u32 model_id; /* Model-ID */
u32 firmware_id; /* Firmware-ID */
u32 board_id; /* Board-ID */
u32 capabilities; /* Capabilities */
u32 ext_cap; /* Extended Capabilities */
u32 ext_cap_0c; /* Ext Caps from 0x0c query */
u32 ext_cap_10; /* Ext Caps from 0x10 query */
u32 identity; /* Identification */
u32 x_res, y_res; /* X/Y resolution in units/mm */
u32 x_max, y_max; /* Max coordinates (from FW) */
u32 x_min, y_min; /* Min coordinates (from FW) */
};
struct synaptics_data {
struct synaptics_device_info info;
enum synaptics_pkt_type pkt_type; /* packet type - old, new, etc */
u8 mode; /* current mode byte */
int scroll;
bool absolute_mode; /* run in Absolute mode */
bool disable_gesture; /* disable gestures */
struct serio *pt_port; /* Pass-through serio port */
/*
* 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;
unsigned int agm_count; /* finger count reported by agm */
/* ForcePad handling */
unsigned long press_start;
bool press;
bool report_press;
bool is_forcepad;
};
void synaptics_module_init(void);
int synaptics_detect(struct psmouse *psmouse, bool set_properties);
int synaptics_init_absolute(struct psmouse *psmouse);
int synaptics_init_relative(struct psmouse *psmouse);
int synaptics_init_smbus(struct psmouse *psmouse);
int synaptics_init(struct psmouse *psmouse);
void synaptics_reset(struct psmouse *psmouse);
#endif /* _SYNAPTICS_H */