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 68