drivers/input/mouse/synaptics.h

   1 /*
   2  * Synaptics TouchPad PS/2 mouse driver
   3  *
   4  * This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU General Public License version 2 as published by
   6  * the Free Software Foundation.
   7  */
   8
   9 #ifndef _SYNAPTICS_H
  10 #define _SYNAPTICS_H
  11
  12 /* synaptics queries */
  13 #define SYN_QUE_IDENTIFY                0x00
  14 #define SYN_QUE_MODES                   0x01
  15 #define SYN_QUE_CAPABILITIES            0x02
  16 #define SYN_QUE_MODEL                   0x03
  17 #define SYN_QUE_SERIAL_NUMBER_PREFIX    0x06
  18 #define SYN_QUE_SERIAL_NUMBER_SUFFIX    0x07
  19 #define SYN_QUE_RESOLUTION              0x08
  20 #define SYN_QUE_EXT_CAPAB               0x09
  21 #define SYN_QUE_EXT_CAPAB_0C            0x0c
  22 #define SYN_QUE_EXT_DIMENSIONS          0x0d
  23
  24 /* synatics modes */
  25 #define SYN_BIT_ABSOLUTE_MODE           (1 << 7)
  26 #define SYN_BIT_HIGH_RATE               (1 << 6)
  27 #define SYN_BIT_SLEEP_MODE              (1 << 3)
  28 #define SYN_BIT_DISABLE_GESTURE         (1 << 2)
  29 #define SYN_BIT_FOUR_BYTE_CLIENT        (1 << 1)
  30 #define SYN_BIT_W_MODE                  (1 << 0)
  31
  32 /* synaptics model ID bits */
  33 #define SYN_MODEL_ROT180(m)             ((m) & (1 << 23))
  34 #define SYN_MODEL_PORTRAIT(m)           ((m) & (1 << 22))
  35 #define SYN_MODEL_SENSOR(m)             (((m) >> 16) & 0x3f)
  36 #define SYN_MODEL_HARDWARE(m)           (((m) >> 9) & 0x7f)
  37 #define SYN_MODEL_NEWABS(m)             ((m) & (1 << 7))
  38 #define SYN_MODEL_PEN(m)                ((m) & (1 << 6))
  39 #define SYN_MODEL_SIMPLIC(m)            ((m) & (1 << 5))
  40 #define SYN_MODEL_GEOMETRY(m)           ((m) & 0x0f)
  41
  42 /* synaptics capability bits */
  43 #define SYN_CAP_EXTENDED(c)             ((c) & (1 << 23))
  44 #define SYN_CAP_MIDDLE_BUTTON(c)        ((c) & (1 << 18))
  45 #define SYN_CAP_PASS_THROUGH(c)         ((c) & (1 << 7))
  46 #define SYN_CAP_SLEEP(c)                ((c) & (1 << 4))
  47 #define SYN_CAP_FOUR_BUTTON(c)          ((c) & (1 << 3))
  48 #define SYN_CAP_MULTIFINGER(c)          ((c) & (1 << 1))
  49 #define SYN_CAP_PALMDETECT(c)           ((c) & (1 << 0))
  50 #define SYN_CAP_SUBMODEL_ID(c)          (((c) & 0x00ff00) >> 8)
  51 #define SYN_EXT_CAP_REQUESTS(c)         (((c) & 0x700000) >> 20)
  52 #define SYN_CAP_MULTI_BUTTON_NO(ec)     (((ec) & 0x00f000) >> 12)
  53 #define SYN_CAP_PRODUCT_ID(ec)          (((ec) & 0xff0000) >> 16)
  54
  55 /*
  56  * The following describes response for the 0x0c query.
  57  *
  58  * byte mask    name                    meaning
  59  * ---- ----    -------                 ------------
  60  * 1    0x01    adjustable threshold    capacitive button sensitivity
  61  *                                      can be adjusted
  62  * 1    0x02    report max              query 0x0d gives max coord reported
  63  * 1    0x04    clearpad                sensor is ClearPad product
  64  * 1    0x08    advanced gesture        not particularly meaningful
  65  * 1    0x10    clickpad bit 0          1-button ClickPad
  66  * 1    0x60    multifinger mode        identifies firmware finger counting
  67  *                                      (not reporting!) algorithm.
  68  *                                      Not particularly meaningful
  69  * 1    0x80    covered pad             W clipped to 14, 15 == pad mostly covered
  70  * 2    0x01    clickpad bit 1          2-button ClickPad
  71  * 2    0x02    deluxe LED controls     touchpad support LED commands
  72  *                                      ala multimedia control bar
  73  * 2    0x04    reduced filtering       firmware does less filtering on
  74  *                                      position data, driver should watch
  75  *                                      for noise.
  76  */
  77 #define SYN_CAP_CLICKPAD(ex0c)          ((ex0c) & 0x100000) /* 1-button ClickPad */
  78 #define SYN_CAP_CLICKPAD2BTN(ex0c)      ((ex0c) & 0x000100) /* 2-button ClickPad */
  79 #define SYN_CAP_MAX_DIMENSIONS(ex0c)    ((ex0c) & 0x020000)
  80 #define SYN_CAP_ADV_GESTURE(ex0c)       ((ex0c) & 0x080000)
  81 #define SYN_CAP_REDUCED_FILTERING(ex0c) ((ex0c) & 0x000400)
  82
  83 /* synaptics modes query bits */
  84 #define SYN_MODE_ABSOLUTE(m)            ((m) & (1 << 7))
  85 #define SYN_MODE_RATE(m)                ((m) & (1 << 6))
  86 #define SYN_MODE_BAUD_SLEEP(m)          ((m) & (1 << 3))
  87 #define SYN_MODE_DISABLE_GESTURE(m)     ((m) & (1 << 2))
  88 #define SYN_MODE_PACKSIZE(m)            ((m) & (1 << 1))
  89 #define SYN_MODE_WMODE(m)               ((m) & (1 << 0))
  90
  91 /* synaptics identify query bits */
  92 #define SYN_ID_MODEL(i)                 (((i) >> 4) & 0x0f)
  93 #define SYN_ID_MAJOR(i)                 ((i) & 0x0f)
  94 #define SYN_ID_MINOR(i)                 (((i) >> 16) & 0xff)
  95 #define SYN_ID_FULL(i)                  ((SYN_ID_MAJOR(i) << 8) | SYN_ID_MINOR(i))
  96 #define SYN_ID_IS_SYNAPTICS(i)          ((((i) >> 8) & 0xff) == 0x47)
  97
  98 /* synaptics special commands */
  99 #define SYN_PS_SET_MODE2                0x14
 100 #define SYN_PS_CLIENT_CMD               0x28
 101
 102 /* synaptics packet types */
 103 #define SYN_NEWABS                      0
 104 #define SYN_NEWABS_STRICT               1
 105 #define SYN_NEWABS_RELAXED              2
 106 #define SYN_OLDABS                      3
 107
 108 /* amount to fuzz position data when touchpad reports reduced filtering */
 109 #define SYN_REDUCED_FILTER_FUZZ         8
 110
 111 /*
 112  * A structure to describe the state of the touchpad hardware (buttons and pad)
 113  */
 114
 115 struct synaptics_hw_state {
 116         int x;
 117         int y;
 118         int z;
 119         int w;
 120         unsigned int left:1;
 121         unsigned int right:1;
 122         unsigned int middle:1;
 123         unsigned int up:1;
 124         unsigned int down:1;
 125         unsigned char ext_buttons;
 126         signed char scroll;
 127 };
 128
 129 struct synaptics_data {
 130         /* Data read from the touchpad */
 131         unsigned long int model_id;             /* Model-ID */
 132         unsigned long int capabilities;         /* Capabilities */
 133         unsigned long int ext_cap;              /* Extended Capabilities */
 134         unsigned long int ext_cap_0c;           /* Ext Caps from 0x0c query */
 135         unsigned long int identity;             /* Identification */
 136         unsigned int x_res, y_res;              /* X/Y resolution in units/mm */
 137         unsigned int x_max, y_max;              /* Max dimensions (from FW) */
 138
 139         unsigned char pkt_type;                 /* packet type - old, new, etc */
 140         unsigned char mode;                     /* current mode byte */
 141         int scroll;
 142
 143         struct serio *pt_port;                  /* Pass-through serio port */
 144
 145         struct synaptics_hw_state mt;           /* current gesture packet */
 146 };
 147
 148 void synaptics_module_init(void);
 149 int synaptics_detect(struct psmouse *psmouse, bool set_properties);
 150 int synaptics_init(struct psmouse *psmouse);
 151 void synaptics_reset(struct psmouse *psmouse);
 152 bool synaptics_supported(void);
 153
 154 #endif /* _SYNAPTICS_H */