SSL alps.h
Interaktion und PortierbarkeitC
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* ALPS touchpad PS / 2 mouse driver
*
* Copyright ( c ) 2003 Peter Osterlund < petero2 @ telia . com >
* Copyright ( c ) 2005 Vojtech Pavlik < vojtech @ suse . cz >
*/
#ifndef _ALPS_H
#define _ALPS_H
#include <linux/input/mt.h>
#define ALPS_PROTO_V1 0 x100
#define ALPS_PROTO_V2 0 x200
#define ALPS_PROTO_V3 0 x300
#define ALPS_PROTO_V3_RUSHMORE 0 x310
#define ALPS_PROTO_V4 0 x400
#define ALPS_PROTO_V5 0 x500
#define ALPS_PROTO_V6 0 x600
#define ALPS_PROTO_V7 0 x700 /* t3btl t4s */
#define ALPS_PROTO_V8 0 x800 /* SS4btl SS4s */
#define ALPS_PROTO_V9 0 x900 /* ss3btl */
#define MAX_TOUCHES 4
#define DOLPHIN_COUNT_PER_ELECTRODE 64
#define DOLPHIN_PROFILE_XOFFSET 8 /* x-electrode offset */
#define DOLPHIN_PROFILE_YOFFSET 1 /* y-electrode offset */
/*
* enum SS4_PACKET_ID - defines the packet type for V8
* SS4_PACKET_ID_IDLE : There ' s no finger and no button activity .
* SS4_PACKET_ID_ONE : There ' s one finger on touchpad
* or there ' s button activities .
* SS4_PACKET_ID_TWO : There ' s two or more fingers on touchpad
* SS4_PACKET_ID_MULTI : There ' s three or more fingers on touchpad
* SS4_PACKET_ID_STICK : A stick pointer packet
*/
enum SS4_PACKET_ID {
SS4_PACKET_ID_IDLE = 0 ,
SS4_PACKET_ID_ONE,
SS4_PACKET_ID_TWO,
SS4_PACKET_ID_MULTI,
SS4_PACKET_ID_STICK,
};
#define SS4_COUNT_PER_ELECTRODE 256
#define SS4_NUMSENSOR_XOFFSET 7
#define SS4_NUMSENSOR_YOFFSET 7
#define SS4_MIN_PITCH_MM 50
#define SS4_MASK_NORMAL_BUTTONS 0 x07
#define SS4PLUS_COUNT_PER_ELECTRODE 128
#define SS4PLUS_NUMSENSOR_XOFFSET 16
#define SS4PLUS_NUMSENSOR_YOFFSET 5
#define SS4PLUS_MIN_PITCH_MM 37
#define IS_SS4PLUS_DEV(_b) (((_b[0 ]) == 0 x73) && \
((_b[1 ]) == 0 x03) && \
((_b[2 ]) == 0 x28) \
)
#define SS4_IS_IDLE_V2(_b) (((_b[0 ]) == 0 x18) && \
((_b[1 ]) == 0 x10) && \
((_b[2 ]) == 0 x00) && \
((_b[3 ] & 0 x88) == 0 x08) && \
((_b[4 ]) == 0 x10) && \
((_b[5 ]) == 0 x00) \
)
#define SS4_1F_X_V2(_b) (((_b[0 ]) & 0 x0007) | \
((_b[1 ] << 3 ) & 0 x0078) | \
((_b[1 ] << 2 ) & 0 x0380) | \
((_b[2 ] << 5 ) & 0 x1C00) \
)
#define SS4_1F_Y_V2(_b) (((_b[2 ]) & 0 x000F) | \
((_b[3 ] >> 2 ) & 0 x0030) | \
((_b[4 ] << 6 ) & 0 x03C0) | \
((_b[4 ] << 5 ) & 0 x0C00) \
)
#define SS4_1F_Z_V2(_b) (((_b[5 ]) & 0 x0F) | \
((_b[5 ] >> 1 ) & 0 x70) | \
((_b[4 ]) & 0 x80) \
)
#define SS4_1F_LFB_V2(_b) (((_b[2 ] >> 4 ) & 0 x01) == 0 x01)
#define SS4_MF_LF_V2(_b, _i) ((_b[1 + (_i) * 3 ] & 0 x0004) == 0 x0004)
#define SS4_BTN_V2(_b) ((_b[0 ] >> 5 ) & SS4_MASK_NORMAL_BUTTONS)
#define SS4_STD_MF_X_V2(_b, _i) (((_b[0 + (_i) * 3 ] << 5 ) & 0 x00E0) | \
((_b[1 + _i * 3 ] << 5 ) & 0 x1F00) \
)
#define SS4_PLUS_STD_MF_X_V2(_b, _i) (((_b[0 + (_i) * 3 ] << 4 ) & 0 x0070) | \
((_b[1 + (_i) * 3 ] << 4 ) & 0 x0F80) \
)
#define SS4_STD_MF_Y_V2(_b, _i) (((_b[1 + (_i) * 3 ] << 3 ) & 0 x0010) | \
((_b[2 + (_i) * 3 ] << 5 ) & 0 x01E0) | \
((_b[2 + (_i) * 3 ] << 4 ) & 0 x0E00) \
)
#define SS4_BTL_MF_X_V2(_b, _i) (SS4_STD_MF_X_V2(_b, _i) | \
((_b[0 + (_i) * 3 ] >> 3 ) & 0 x0010) \
)
#define SS4_PLUS_BTL_MF_X_V2(_b, _i) (SS4_PLUS_STD_MF_X_V2(_b, _i) | \
((_b[0 + (_i) * 3 ] >> 4 ) & 0 x0008) \
)
#define SS4_BTL_MF_Y_V2(_b, _i) (SS4_STD_MF_Y_V2(_b, _i) | \
((_b[0 + (_i) * 3 ] >> 3 ) & 0 x0008) \
)
#define SS4_MF_Z_V2(_b, _i) (((_b[1 + (_i) * 3 ]) & 0 x0001) | \
((_b[1 + (_i) * 3 ] >> 1 ) & 0 x0002) \
)
#define SS4_IS_MF_CONTINUE(_b) ((_b[2 ] & 0 x10) == 0 x10)
#define SS4_IS_5F_DETECTED(_b) ((_b[2 ] & 0 x10) == 0 x10)
#define SS4_TS_X_V2(_b) (s8)( \
((_b[0 ] & 0 x01) << 7 ) | \
(_b[1 ] & 0 x7F) \
)
#define SS4_TS_Y_V2(_b) -(s8)( \
((_b[3 ] & 0 x01) << 7 ) | \
(_b[2 ] & 0 x7F) \
)
#define SS4_TS_Z_V2(_b) (s8)(_b[4 ] & 0 x7F)
#define SS4_MFPACKET_NO_AX 8160 /* X-Coordinate value */
#define SS4_MFPACKET_NO_AY 4080 /* Y-Coordinate value */
#define SS4_MFPACKET_NO_AX_BL 8176 /* Buttonless X-Coord value */
#define SS4_MFPACKET_NO_AY_BL 4088 /* Buttonless Y-Coord value */
#define SS4_PLUS_MFPACKET_NO_AX 4080 /* SS4 PLUS, X */
#define SS4_PLUS_MFPACKET_NO_AX_BL 4088 /* Buttonless SS4 PLUS, X */
/*
* 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_protocol_info - information about protocol used by a device
* @ 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 . ) .
*/
struct alps_protocol_info {
u16 version;
u8 byte0, mask0;
unsigned int flags;
};
/**
* struct alps_model_info - touchpad ID table
* @ signature : E7 response string to match .
* @ protocol_info : information about protocol used by the device .
*
* 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 {
u8 signature[3 ];
struct alps_protocol_info protocol_info;
};
/**
* 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
* @ psmouse : Pointer to parent psmouse device
* @ dev2 : Trackstick device ( can be NULL ) .
* @ dev3 : Generic PS / 2 mouse ( can be NULL , delayed registering ) .
* @ phys2 : Physical path for the trackstick device .
* @ phys3 : Physical path for the generic PS / 2 mouse .
* @ dev3_register_work : Delayed work for registering PS / 2 mouse .
* @ 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 psmouse *psmouse;
struct input_dev *dev2;
struct input_dev *dev3;
char phys2[32 ];
char phys3[32 ];
struct delayed_work dev3_register_work;
/* these are autodetected when the device is identified */
const struct alps_nibble_commands *nibble_commands;
int addr_command;
u16 proto_version;
u8 byte0, mask0;
u8 dev_id[3 ];
u8 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;
int second_touch;
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 */
int alps_detect(struct psmouse *psmouse, bool set_properties);
int alps_init(struct psmouse *psmouse);
#endif
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