1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * OLPC HGPK (XO-1) touchpad PS/2 mouse driver 4 */ 5 6 #ifndef _HGPK_H 7 #define _HGPK_H 8 9 #define HGPK_GS 0xff /* The GlideSensor */ 10 #define HGPK_PT 0xcf /* The PenTablet */ 11 12 enum hgpk_model_t { 13 HGPK_MODEL_PREA = 0x0a, /* pre-B1s */ 14 HGPK_MODEL_A = 0x14, /* found on B1s, PT disabled in hardware */ 15 HGPK_MODEL_B = 0x28, /* B2s, has capacitance issues */ 16 HGPK_MODEL_C = 0x3c, 17 HGPK_MODEL_D = 0x50, /* C1, mass production */ 18 }; 19 20 enum hgpk_spew_flag { 21 NO_SPEW, 22 MAYBE_SPEWING, 23 SPEW_DETECTED, 24 RECALIBRATING, 25 }; 26 27 #define SPEW_WATCH_COUNT 42 /* at 12ms/packet, this is 1/2 second */ 28 29 enum hgpk_mode { 30 HGPK_MODE_MOUSE, 31 HGPK_MODE_GLIDESENSOR, 32 HGPK_MODE_PENTABLET, 33 HGPK_MODE_INVALID 34 }; 35 36 struct hgpk_data { 37 struct psmouse *psmouse; 38 enum hgpk_mode mode; 39 bool powered; 40 enum hgpk_spew_flag spew_flag; 41 int spew_count, x_tally, y_tally; /* spew detection */ 42 unsigned long recalib_window; 43 struct delayed_work recalib_wq; 44 int abs_x, abs_y; 45 int dupe_count; 46 int xbigj, ybigj, xlast, ylast; /* jumpiness detection */ 47 int xsaw_secondary, ysaw_secondary; /* jumpiness detection */ 48 }; 49 50 int hgpk_detect(struct psmouse *psmouse, bool set_properties); 51 int hgpk_init(struct psmouse *psmouse); 52 53 #ifdef CONFIG_MOUSE_PS2_OLPC 54 void hgpk_module_init(void); 55 #else 56 static inline void hgpk_module_init(void) 57 { 58 } 59 #endif 60 61 #endif 62