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_FIRMWARE_ID             0x0a
  22 #define SYN_QUE_EXT_CAPAB_0C            0x0c
  23 #define SYN_QUE_EXT_MAX_COORDS          0x0d
  24 #define SYN_QUE_EXT_MIN_COORDS          0x0f
  25 #define SYN_QUE_MEXT_CAPAB_10           0x10
  26
  27 /* synatics modes */
  28 #define SYN_BIT_ABSOLUTE_MODE           (1 << 7)
  29 #define SYN_BIT_HIGH_RATE               (1 << 6)
  30 #define SYN_BIT_SLEEP_MODE              (1 << 3)
  31 #define SYN_BIT_DISABLE_GESTURE         (1 << 2)
  32 #define SYN_BIT_FOUR_BYTE_CLIENT        (1 << 1)
  33 #define SYN_BIT_W_MODE                  (1 << 0)
  34
  35 /* synaptics model ID bits */
  36 #define SYN_MODEL_ROT180(m)             ((m) & (1 << 23))
  37 #define SYN_MODEL_PORTRAIT(m)           ((m) & (1 << 22))
  38 #define SYN_MODEL_SENSOR(m)             (((m) >> 16) & 0x3f)
  39 #define SYN_MODEL_HARDWARE(m)           (((m) >> 9) & 0x7f)
  40 #define SYN_MODEL_NEWABS(m)             ((m) & (1 << 7))
  41 #define SYN_MODEL_PEN(m)                ((m) & (1 << 6))
  42 #define SYN_MODEL_SIMPLIC(m)            ((m) & (1 << 5))
  43 #define SYN_MODEL_GEOMETRY(m)           ((m) & 0x0f)
  44
  45 /* synaptics capability bits */
  46 #define SYN_CAP_EXTENDED(c)             ((c) & (1 << 23))
  47 #define SYN_CAP_MIDDLE_BUTTON(c)        ((c) & (1 << 18))
  48 #define SYN_CAP_PASS_THROUGH(c)         ((c) & (1 << 7))
  49 #define SYN_CAP_SLEEP(c)                ((c) & (1 << 4))
  50 #define SYN_CAP_FOUR_BUTTON(c)          ((c) & (1 << 3))
  51 #define SYN_CAP_MULTIFINGER(c)          ((c) & (1 << 1))
  52 #define SYN_CAP_PALMDETECT(c)           ((c) & (1 << 0))
  53 #define SYN_CAP_SUBMODEL_ID(c)          (((c) & 0x00ff00) >> 8)
  54 #define SYN_EXT_CAP_REQUESTS(c)         (((c) & 0x700000) >> 20)
  55 #define SYN_CAP_MULTI_BUTTON_NO(ec)     (((ec) & 0x00f000) >> 12)
  56 #define SYN_CAP_PRODUCT_ID(ec)          (((ec) & 0xff0000) >> 16)
  57 #define SYN_MEXT_CAP_BIT(m)             ((m) & (1 << 1))
  58
  59 /*
  60  * The following describes response for the 0x0c query.
  61  *
  62  * byte mask    name                    meaning
  63  * ---- ----    -------                 ------------
  64  * 1    0x01    adjustable threshold    capacitive button sensitivity
  65  *                                      can be adjusted
  66  * 1    0x02    report max              query 0x0d gives max coord reported
  67  * 1    0x04    clearpad                sensor is ClearPad product
  68  * 1    0x08    advanced gesture        not particularly meaningful
  69  * 1    0x10    clickpad bit 0          1-button ClickPad
  70  * 1    0x60    multifinger mode        identifies firmware finger counting
  71  *                                      (not reporting!) algorithm.
  72  *                                      Not particularly meaningful
  73  * 1    0x80    covered pad             W clipped to 14, 15 == pad mostly covered
  74  * 2    0x01    clickpad bit 1          2-button ClickPad
  75  * 2    0x02    deluxe LED controls     touchpad support LED commands
  76  *                                      ala multimedia control bar
  77  * 2    0x04    reduced filtering       firmware does less filtering on
  78  *                                      position data, driver should watch
  79  *                                      for noise.
  80  * 2    0x08    image sensor            image sensor tracks 5 fingers, but only
  81  *                                      reports 2.
  82  * 2    0x01    uniform clickpad        whole clickpad moves instead of being
  83  *                                      hinged at the top.
  84  * 2    0x20    report min              query 0x0f gives min coord reported
  85  */
  86 #define SYN_CAP_CLICKPAD(ex0c)          ((ex0c) & 0x100000) /* 1-button ClickPad */
  87 #define SYN_CAP_CLICKPAD2BTN(ex0c)      ((ex0c) & 0x000100) /* 2-button ClickPad */
  88 #define SYN_CAP_MAX_DIMENSIONS(ex0c)    ((ex0c) & 0x020000)
  89 #define SYN_CAP_MIN_DIMENSIONS(ex0c)    ((ex0c) & 0x002000)
  90 #define SYN_CAP_ADV_GESTURE(ex0c)       ((ex0c) & 0x080000)
  91 #define SYN_CAP_REDUCED_FILTERING(ex0c) ((ex0c) & 0x000400)
  92 #define SYN_CAP_IMAGE_SENSOR(ex0c)      ((ex0c) & 0x000800)
  93
  94 /*
  95  * The following descibes response for the 0x10 query.
  96  *
  97  * byte mask    name                    meaning
  98  * ---- ----    -------                 ------------
  99  * 1    0x01    ext buttons are stick   buttons exported in the extended
 100  *                                      capability are actually meant to be used
 101  *                                      by the tracktick (pass-through).
 102  * 1    0x02    SecurePad               the touchpad is a SecurePad, so it
 103  *                                      contains a built-in fingerprint reader.
 104  * 1    0xe0    more ext count          how many more extented queries are
 105  *                                      available after this one.
 106  * 2    0xff    SecurePad width         the width of the SecurePad fingerprint
 107  *                                      reader.
 108  * 3    0xff    SecurePad height        the height of the SecurePad fingerprint
 109  *                                      reader.
 110  */
 111 #define SYN_CAP_EXT_BUTTONS_STICK(ex10) ((ex10) & 0x010000)
 112 #define SYN_CAP_SECUREPAD(ex10)         ((ex10) & 0x020000)
 113
 114 #define SYN_CAP_EXT_BUTTON_STICK_L(eb)  (!!((eb) & 0x01))
 115 #define SYN_CAP_EXT_BUTTON_STICK_M(eb)  (!!((eb) & 0x02))
 116 #define SYN_CAP_EXT_BUTTON_STICK_R(eb)  (!!((eb) & 0x04))
 117
 118 /* synaptics modes query bits */
 119 #define SYN_MODE_ABSOLUTE(m)            ((m) & (1 << 7))
 120 #define SYN_MODE_RATE(m)                ((m) & (1 << 6))
 121 #define SYN_MODE_BAUD_SLEEP(m)          ((m) & (1 << 3))
 122 #define SYN_MODE_DISABLE_GESTURE(m)     ((m) & (1 << 2))
 123 #define SYN_MODE_PACKSIZE(m)            ((m) & (1 << 1))
 124 #define SYN_MODE_WMODE(m)               ((m) & (1 << 0))
 125
 126 /* synaptics identify query bits */
 127 #define SYN_ID_MODEL(i)                 (((i) >> 4) & 0x0f)
 128 #define SYN_ID_MAJOR(i)                 ((i) & 0x0f)
 129 #define SYN_ID_MINOR(i)                 (((i) >> 16) & 0xff)
 130 #define SYN_ID_FULL(i)                  ((SYN_ID_MAJOR(i) << 8) | SYN_ID_MINOR(i))
 131 #define SYN_ID_IS_SYNAPTICS(i)          ((((i) >> 8) & 0xff) == 0x47)
 132 #define SYN_ID_DISGEST_SUPPORTED(i)     (SYN_ID_MAJOR(i) >= 4)
 133
 134 /* synaptics special commands */
 135 #define SYN_PS_SET_MODE2                0x14
 136 #define SYN_PS_CLIENT_CMD               0x28
 137
 138 /* synaptics packet types */
 139 #define SYN_NEWABS                      0
 140 #define SYN_NEWABS_STRICT               1
 141 #define SYN_NEWABS_RELAXED              2
 142 #define SYN_OLDABS                      3
 143
 144 /* amount to fuzz position data when touchpad reports reduced filtering */
 145 #define SYN_REDUCED_FILTER_FUZZ         8
 146
 147 /*
 148  * A structure to describe the state of the touchpad hardware (buttons and pad)
 149  */
 150 struct synaptics_hw_state {
 151         int x;
 152         int y;
 153         int z;
 154         int w;
 155         unsigned int left:1;
 156         unsigned int right:1;
 157         unsigned int middle:1;
 158         unsigned int up:1;
 159         unsigned int down:1;
 160         unsigned char ext_buttons;
 161         signed char scroll;
 162 };
 163
 164 struct synaptics_data {
 165         /* Data read from the touchpad */
 166         unsigned long int model_id;             /* Model-ID */
 167         unsigned long int firmware_id;          /* Firmware-ID */
 168         unsigned long int board_id;             /* Board-ID */
 169         unsigned long int capabilities;         /* Capabilities */
 170         unsigned long int ext_cap;              /* Extended Capabilities */
 171         unsigned long int ext_cap_0c;           /* Ext Caps from 0x0c query */
 172         unsigned long int ext_cap_10;           /* Ext Caps from 0x10 query */
 173         unsigned long int identity;             /* Identification */
 174         unsigned int x_res, y_res;              /* X/Y resolution in units/mm */
 175         unsigned int x_max, y_max;              /* Max coordinates (from FW) */
 176         unsigned int x_min, y_min;              /* Min coordinates (from FW) */
 177
 178         unsigned char pkt_type;                 /* packet type - old, new, etc */
 179         unsigned char mode;                     /* current mode byte */
 180         int scroll;
 181
 182         bool absolute_mode;                     /* run in Absolute mode */
 183         bool disable_gesture;                   /* disable gestures */
 184
 185         struct serio *pt_port;                  /* Pass-through serio port */
 186
 187         /*
 188          * Last received Advanced Gesture Mode (AGM) packet. An AGM packet
 189          * contains position data for a second contact, at half resolution.
 190          */
 191         struct synaptics_hw_state agm;
 192         unsigned int agm_count;                 /* finger count reported by agm */
 193
 194         /* ForcePad handling */
 195         unsigned long                           press_start;
 196         bool                                    press;
 197         bool                                    report_press;
 198         bool                                    is_forcepad;
 199 };
 200
 201 void synaptics_module_init(void);
 202 int synaptics_detect(struct psmouse *psmouse, bool set_properties);
 203 int synaptics_init(struct psmouse *psmouse);
 204 int synaptics_init_relative(struct psmouse *psmouse);
 205 void synaptics_reset(struct psmouse *psmouse);
 206
 207 #endif /* _SYNAPTICS_H */