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_MAX_COORDS          0x0d
  23 #define SYN_QUE_EXT_MIN_COORDS          0x0f
  24
  25 /* synatics modes */
  26 #define SYN_BIT_ABSOLUTE_MODE           (1 << 7)
  27 #define SYN_BIT_HIGH_RATE               (1 << 6)
  28 #define SYN_BIT_SLEEP_MODE              (1 << 3)
  29 #define SYN_BIT_DISABLE_GESTURE         (1 << 2)
  30 #define SYN_BIT_FOUR_BYTE_CLIENT        (1 << 1)
  31 #define SYN_BIT_W_MODE                  (1 << 0)
  32
  33 /* synaptics model ID bits */
  34 #define SYN_MODEL_ROT180(m)             ((m) & (1 << 23))
  35 #define SYN_MODEL_PORTRAIT(m)           ((m) & (1 << 22))
  36 #define SYN_MODEL_SENSOR(m)             (((m) >> 16) & 0x3f)
  37 #define SYN_MODEL_HARDWARE(m)           (((m) >> 9) & 0x7f)
  38 #define SYN_MODEL_NEWABS(m)             ((m) & (1 << 7))
  39 #define SYN_MODEL_PEN(m)                ((m) & (1 << 6))
  40 #define SYN_MODEL_SIMPLIC(m)            ((m) & (1 << 5))
  41 #define SYN_MODEL_GEOMETRY(m)           ((m) & 0x0f)
  42
  43 /* synaptics capability bits */
  44 #define SYN_CAP_EXTENDED(c)             ((c) & (1 << 23))
  45 #define SYN_CAP_MIDDLE_BUTTON(c)        ((c) & (1 << 18))
  46 #define SYN_CAP_PASS_THROUGH(c)         ((c) & (1 << 7))
  47 #define SYN_CAP_SLEEP(c)                ((c) & (1 << 4))
  48 #define SYN_CAP_FOUR_BUTTON(c)          ((c) & (1 << 3))
  49 #define SYN_CAP_MULTIFINGER(c)          ((c) & (1 << 1))
  50 #define SYN_CAP_PALMDETECT(c)           ((c) & (1 << 0))
  51 #define SYN_CAP_SUBMODEL_ID(c)          (((c) & 0x00ff00) >> 8)
  52 #define SYN_EXT_CAP_REQUESTS(c)         (((c) & 0x700000) >> 20)
  53 #define SYN_CAP_MULTI_BUTTON_NO(ec)     (((ec) & 0x00f000) >> 12)
  54 #define SYN_CAP_PRODUCT_ID(ec)          (((ec) & 0xff0000) >> 16)
  55
  56 /*
  57  * The following describes response for the 0x0c query.
  58  *
  59  * byte mask    name                    meaning
  60  * ---- ----    -------                 ------------
  61  * 1    0x01    adjustable threshold    capacitive button sensitivity
  62  *                                      can be adjusted
  63  * 1    0x02    report max              query 0x0d gives max coord reported
  64  * 1    0x04    clearpad                sensor is ClearPad product
  65  * 1    0x08    advanced gesture        not particularly meaningful
  66  * 1    0x10    clickpad bit 0          1-button ClickPad
  67  * 1    0x60    multifinger mode        identifies firmware finger counting
  68  *                                      (not reporting!) algorithm.
  69  *                                      Not particularly meaningful
  70  * 1    0x80    covered pad             W clipped to 14, 15 == pad mostly covered
  71  * 2    0x01    clickpad bit 1          2-button ClickPad
  72  * 2    0x02    deluxe LED controls     touchpad support LED commands
  73  *                                      ala multimedia control bar
  74  * 2    0x04    reduced filtering       firmware does less filtering on
  75  *                                      position data, driver should watch
  76  *                                      for noise.
  77  * 2    0x08    image sensor            image sensor tracks 5 fingers, but only
  78  *                                      reports 2.
  79  * 2    0x20    report min              query 0x0f gives min coord reported
  80  */
  81 #define SYN_CAP_CLICKPAD(ex0c)          ((ex0c) & 0x100000) /* 1-button ClickPad */
  82 #define SYN_CAP_CLICKPAD2BTN(ex0c)      ((ex0c) & 0x000100) /* 2-button ClickPad */
  83 #define SYN_CAP_MAX_DIMENSIONS(ex0c)    ((ex0c) & 0x020000)
  84 #define SYN_CAP_MIN_DIMENSIONS(ex0c)    ((ex0c) & 0x002000)
  85 #define SYN_CAP_ADV_GESTURE(ex0c)       ((ex0c) & 0x080000)
  86 #define SYN_CAP_REDUCED_FILTERING(ex0c) ((ex0c) & 0x000400)
  87 #define SYN_CAP_IMAGE_SENSOR(ex0c)      ((ex0c) & 0x000800)
  88
  89 /* synaptics modes query bits */
  90 #define SYN_MODE_ABSOLUTE(m)            ((m) & (1 << 7))
  91 #define SYN_MODE_RATE(m)                ((m) & (1 << 6))
  92 #define SYN_MODE_BAUD_SLEEP(m)          ((m) & (1 << 3))
  93 #define SYN_MODE_DISABLE_GESTURE(m)     ((m) & (1 << 2))
  94 #define SYN_MODE_PACKSIZE(m)            ((m) & (1 << 1))
  95 #define SYN_MODE_WMODE(m)               ((m) & (1 << 0))
  96
  97 /* synaptics identify query bits */
  98 #define SYN_ID_MODEL(i)                 (((i) >> 4) & 0x0f)
  99 #define SYN_ID_MAJOR(i)                 ((i) & 0x0f)
 100 #define SYN_ID_MINOR(i)                 (((i) >> 16) & 0xff)
 101 #define SYN_ID_FULL(i)                  ((SYN_ID_MAJOR(i) << 8) | SYN_ID_MINOR(i))
 102 #define SYN_ID_IS_SYNAPTICS(i)          ((((i) >> 8) & 0xff) == 0x47)
 103
 104 /* synaptics special commands */
 105 #define SYN_PS_SET_MODE2                0x14
 106 #define SYN_PS_CLIENT_CMD               0x28
 107
 108 /* synaptics packet types */
 109 #define SYN_NEWABS                      0
 110 #define SYN_NEWABS_STRICT               1
 111 #define SYN_NEWABS_RELAXED              2
 112 #define SYN_OLDABS                      3
 113
 114 /* amount to fuzz position data when touchpad reports reduced filtering */
 115 #define SYN_REDUCED_FILTER_FUZZ         8
 116
 117 /*
 118  * A structure to describe which internal touchpad finger slots are being
 119  * reported in raw packets.
 120  */
 121 struct synaptics_mt_state {
 122         int count;                      /* num fingers being tracked */
 123         int sgm;                        /* which slot is reported by sgm pkt */
 124         int agm;                        /* which slot is reported by agm pkt*/
 125 };
 126
 127 /*
 128  * A structure to describe the state of the touchpad hardware (buttons and pad)
 129  */
 130 struct synaptics_hw_state {
 131         int x;
 132         int y;
 133         int z;
 134         int w;
 135         unsigned int left:1;
 136         unsigned int right:1;
 137         unsigned int middle:1;
 138         unsigned int up:1;
 139         unsigned int down:1;
 140         unsigned char ext_buttons;
 141         signed char scroll;
 142
 143         /* As reported in last AGM-CONTACT packets */
 144         struct synaptics_mt_state mt_state;
 145 };
 146
 147 struct synaptics_data {
 148         /* Data read from the touchpad */
 149         unsigned long int model_id;             /* Model-ID */
 150         unsigned long int capabilities;         /* Capabilities */
 151         unsigned long int ext_cap;              /* Extended Capabilities */
 152         unsigned long int ext_cap_0c;           /* Ext Caps from 0x0c query */
 153         unsigned long int identity;             /* Identification */
 154         unsigned int x_res, y_res;              /* X/Y resolution in units/mm */
 155         unsigned int x_max, y_max;              /* Max coordinates (from FW) */
 156         unsigned int x_min, y_min;              /* Min coordinates (from FW) */
 157
 158         unsigned char pkt_type;                 /* packet type - old, new, etc */
 159         unsigned char mode;                     /* current mode byte */
 160         int scroll;
 161
 162         struct serio *pt_port;                  /* Pass-through serio port */
 163
 164         struct synaptics_mt_state mt_state;     /* Current mt finger state */
 165         bool mt_state_lost;                     /* mt_state may be incorrect */
 166
 167         /*
 168          * Last received Advanced Gesture Mode (AGM) packet. An AGM packet
 169          * contains position data for a second contact, at half resolution.
 170          */
 171         struct synaptics_hw_state agm;
 172         bool agm_pending;                       /* new AGM packet received */
 173 };
 174
 175 void synaptics_module_init(void);
 176 int synaptics_detect(struct psmouse *psmouse, bool set_properties);
 177 int synaptics_init(struct psmouse *psmouse);
 178 void synaptics_reset(struct psmouse *psmouse);
 179 bool synaptics_supported(void);
 180
 181 #endif /* _SYNAPTICS_H */