/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* OLPC HGPK (XO-1) touchpad PS/2 mouse driver
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*/
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#ifndef _HGPK_H
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#define _HGPK_H
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#define HGPK_GS 0xff /* The GlideSensor */
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#define HGPK_PT 0xcf /* The PenTablet */
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enum hgpk_model_t {
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HGPK_MODEL_PREA = 0x0a, /* pre-B1s */
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HGPK_MODEL_A = 0x14, /* found on B1s, PT disabled in hardware */
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HGPK_MODEL_B = 0x28, /* B2s, has capacitance issues */
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HGPK_MODEL_C = 0x3c,
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HGPK_MODEL_D = 0x50, /* C1, mass production */
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};
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enum hgpk_spew_flag {
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NO_SPEW,
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MAYBE_SPEWING,
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SPEW_DETECTED,
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RECALIBRATING,
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};
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#define SPEW_WATCH_COUNT 42 /* at 12ms/packet, this is 1/2 second */
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enum hgpk_mode {
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HGPK_MODE_MOUSE,
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HGPK_MODE_GLIDESENSOR,
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HGPK_MODE_PENTABLET,
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HGPK_MODE_INVALID
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};
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struct hgpk_data {
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struct psmouse *psmouse;
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enum hgpk_mode mode;
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bool powered;
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enum hgpk_spew_flag spew_flag;
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int spew_count, x_tally, y_tally; /* spew detection */
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unsigned long recalib_window;
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struct delayed_work recalib_wq;
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int abs_x, abs_y;
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int dupe_count;
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int xbigj, ybigj, xlast, ylast; /* jumpiness detection */
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int xsaw_secondary, ysaw_secondary; /* jumpiness detection */
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};
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int hgpk_detect(struct psmouse *psmouse, bool set_properties);
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int hgpk_init(struct psmouse *psmouse);
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#ifdef CONFIG_MOUSE_PS2_OLPC
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void hgpk_module_init(void);
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#else
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static inline void hgpk_module_init(void)
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{
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}
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#endif
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#endif
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