drivers/input/mouse/hgpk.h

   1 /*
   2  * OLPC HGPK (XO-1) touchpad PS/2 mouse driver
   3  */
   4
   5 #ifndef _HGPK_H
   6 #define _HGPK_H
   7
   8 #define HGPK_GS         0xff       /* The GlideSensor */
   9 #define HGPK_PT         0xcf       /* The PenTablet */
  10
  11 enum hgpk_model_t {
  12         HGPK_MODEL_PREA = 0x0a, /* pre-B1s */
  13         HGPK_MODEL_A = 0x14,    /* found on B1s, PT disabled in hardware */
  14         HGPK_MODEL_B = 0x28,    /* B2s, has capacitance issues */
  15         HGPK_MODEL_C = 0x3c,
  16         HGPK_MODEL_D = 0x50,    /* C1, mass production */
  17 };
  18
  19 enum hgpk_spew_flag {
  20         NO_SPEW,
  21         MAYBE_SPEWING,
  22         SPEW_DETECTED,
  23         RECALIBRATING,
  24 };
  25
  26 #define SPEW_WATCH_COUNT 42  /* at 12ms/packet, this is 1/2 second */
  27
  28 enum hgpk_mode {
  29         HGPK_MODE_MOUSE,
  30         HGPK_MODE_GLIDESENSOR,
  31         HGPK_MODE_PENTABLET,
  32         HGPK_MODE_INVALID
  33 };
  34
  35 struct hgpk_data {
  36         struct psmouse *psmouse;
  37         enum hgpk_mode mode;
  38         bool powered;
  39         enum hgpk_spew_flag spew_flag;
  40         int spew_count, x_tally, y_tally;       /* spew detection */
  41         unsigned long recalib_window;
  42         struct delayed_work recalib_wq;
  43         int abs_x, abs_y;
  44         int dupe_count;
  45         int xbigj, ybigj, xlast, ylast; /* jumpiness detection */
  46         int xsaw_secondary, ysaw_secondary; /* jumpiness detection */
  47 };
  48
  49 #ifdef CONFIG_MOUSE_PS2_OLPC
  50 void hgpk_module_init(void);
  51 int hgpk_detect(struct psmouse *psmouse, bool set_properties);
  52 int hgpk_init(struct psmouse *psmouse);
  53 #else
  54 static inline void hgpk_module_init(void)
  55 {
  56 }
  57 static inline int hgpk_detect(struct psmouse *psmouse, bool set_properties)
  58 {
  59         return -ENODEV;
  60 }
  61 static inline int hgpk_init(struct psmouse *psmouse)
  62 {
  63         return -ENODEV;
  64 }
  65 #endif
  66
  67 #endif