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 11enum 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 19enum 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 28enum hgpk_mode { 29 HGPK_MODE_MOUSE, 30 HGPK_MODE_GLIDESENSOR, 31 HGPK_MODE_PENTABLET, 32 HGPK_MODE_INVALID 33}; 34 35struct 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 50void hgpk_module_init(void); 51int hgpk_detect(struct psmouse *psmouse, bool set_properties); 52int hgpk_init(struct psmouse *psmouse); 53#else 54static inline void hgpk_module_init(void) 55{ 56} 57static inline int hgpk_detect(struct psmouse *psmouse, bool set_properties) 58{ 59 return -ENODEV; 60} 61static inline int hgpk_init(struct psmouse *psmouse) 62{ 63 return -ENODEV; 64} 65#endif 66 67#endif 68