94 lines
2.5 KiB
C
94 lines
2.5 KiB
C
/*
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* cyttsp5_mtb.c
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* Parade TrueTouch(TM) Standard Product V5 Multi-Touch Protocol B Module.
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* For use with Parade touchscreen controllers.
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* Supported parts include:
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* CYTMA5XX
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* CYTMA448
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* CYTMA445A
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* CYTT21XXX
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* CYTT31XXX
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*
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* Copyright (C) 2015 Parade Technologies
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* Copyright (C) 2012-2015 Cypress Semiconductor
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2, and only version 2, as published by the
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* Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* Contact Parade Technologies at www.paradetech.com <ttdrivers@paradetech.com>
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*
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*/
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#include "cyttsp5_regs.h"
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#include <linux/input/mt.h>
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#include <linux/version.h>
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static void cyttsp5_final_sync(struct input_dev *input, int max_slots,
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int mt_sync_count, unsigned long *ids)
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{
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int t;
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for (t = 0; t < max_slots; t++) {
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if (test_bit(t, ids))
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continue;
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input_mt_slot(input, t);
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input_mt_report_slot_state(input, MT_TOOL_FINGER, false);
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}
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input_sync(input);
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}
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static void cyttsp5_input_report(struct input_dev *input, int sig,
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int t, int type)
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{
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input_mt_slot(input, t);
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if (type == CY_OBJ_STANDARD_FINGER || type == CY_OBJ_GLOVE
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|| type == CY_OBJ_HOVER)
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input_mt_report_slot_state(input, MT_TOOL_FINGER, true);
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else if (type == CY_OBJ_STYLUS)
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input_mt_report_slot_state(input, MT_TOOL_PEN, true);
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}
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static void cyttsp5_report_slot_liftoff(struct cyttsp5_mt_data *md,
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int max_slots)
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{
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int t;
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if (md->num_prv_rec == 0)
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return;
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for (t = 0; t < max_slots; t++) {
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input_mt_slot(md->input, t);
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input_mt_report_slot_state(md->input,
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MT_TOOL_FINGER, false);
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}
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}
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static int cyttsp5_input_register_device(struct input_dev *input, int max_slots)
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{
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 7, 0))
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input_mt_init_slots(input, max_slots, 0);
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#else
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input_mt_init_slots(input, max_slots);
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#endif
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return input_register_device(input);
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}
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void cyttsp5_init_function_ptrs(struct cyttsp5_mt_data *md)
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{
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md->mt_function.report_slot_liftoff = cyttsp5_report_slot_liftoff;
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md->mt_function.final_sync = cyttsp5_final_sync;
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md->mt_function.input_sync = NULL;
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md->mt_function.input_report = cyttsp5_input_report;
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md->mt_function.input_register_device = cyttsp5_input_register_device;
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}
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