144 lines
4.7 KiB
C
Executable File
144 lines
4.7 KiB
C
Executable File
/*
|
|
* pt_mta.c
|
|
* Parade TrueTouch(TM) Standard Product Multi-Touch Protocol A Module.
|
|
* For use with Parade touchscreen controllers.
|
|
* Supported parts include:
|
|
* TMA5XX
|
|
* TMA448
|
|
* TMA445A
|
|
* TT21XXX
|
|
* TT31XXX
|
|
* TT4XXXX
|
|
* TT7XXX
|
|
* TC3XXX
|
|
*
|
|
* Copyright (C) 2015-2020 Parade Technologies
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* version 2, and only version 2, as published by the
|
|
* Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* Contact Parade Technologies at www.paradetech.com <ttdrivers@paradetech.com>
|
|
*/
|
|
|
|
#include "pt_regs.h"
|
|
|
|
/*******************************************************************************
|
|
* FUNCTION: pt_final_sync
|
|
*
|
|
* SUMMARY: Function to create SYN_REPORT
|
|
*
|
|
* PARAMETERS:
|
|
* *input - pointer to input device structure
|
|
* max_slots - max support touch number
|
|
* mt_sync_count - current valid touch number
|
|
* ids - bit map value
|
|
******************************************************************************/
|
|
static void pt_final_sync(struct input_dev *input, int max_slots,
|
|
int mt_sync_count, unsigned long *ids)
|
|
{
|
|
if (mt_sync_count)
|
|
input_sync(input);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
* FUNCTION: pt_input_sync
|
|
*
|
|
* SUMMARY: Function to create SYN_MT_REPORT
|
|
*
|
|
* PARAMETERS:
|
|
* *input - pointer to input device structure
|
|
******************************************************************************/
|
|
static void pt_input_sync(struct input_dev *input)
|
|
{
|
|
input_mt_sync(input);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
* FUNCTION: pt_input_report
|
|
*
|
|
* SUMMARY: Function to report coordinate information of touch point
|
|
* protocol
|
|
*
|
|
* PARAMETERS:
|
|
* *input - pointer to input device structure
|
|
* sig - track id to allow tracking of a touch
|
|
* t - event id to indicate an event associated with touch instance
|
|
* type - indicate the touch object
|
|
******************************************************************************/
|
|
static void pt_input_report(struct input_dev *input, int sig,
|
|
int t, int type)
|
|
{
|
|
if (type == PT_OBJ_STANDARD_FINGER || type == PT_OBJ_GLOVE) {
|
|
input_report_key(input, BTN_TOOL_FINGER, PT_BTN_PRESSED);
|
|
input_report_key(input, BTN_TOOL_PEN, PT_BTN_RELEASED);
|
|
} else if (type == PT_OBJ_STYLUS) {
|
|
input_report_key(input, BTN_TOOL_PEN, PT_BTN_PRESSED);
|
|
input_report_key(input, BTN_TOOL_FINGER, PT_BTN_RELEASED);
|
|
}
|
|
|
|
input_report_key(input, BTN_TOUCH, PT_BTN_PRESSED);
|
|
|
|
input_report_abs(input, sig, t);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
* FUNCTION: pt_report_slot_liftoff
|
|
*
|
|
* SUMMARY: Function to report all touches are lifted
|
|
* protocol
|
|
*
|
|
* PARAMETERS:
|
|
* *md - pointer to input device structure
|
|
* max_slots - indicate max number of touch id
|
|
******************************************************************************/
|
|
static void pt_report_slot_liftoff(struct pt_mt_data *md,
|
|
int max_slots)
|
|
{
|
|
input_report_key(md->input, BTN_TOUCH, PT_BTN_RELEASED);
|
|
input_report_key(md->input, BTN_TOOL_FINGER, PT_BTN_RELEASED);
|
|
input_report_key(md->input, BTN_TOOL_PEN, PT_BTN_RELEASED);
|
|
|
|
}
|
|
|
|
/*******************************************************************************
|
|
* FUNCTION: pt_input_register_device
|
|
*
|
|
* SUMMARY: Function to register input device
|
|
* protocol
|
|
*
|
|
* PARAMETERS:
|
|
* *input - pointer to input device structure
|
|
* max_slots - indicate max number of touch id
|
|
******************************************************************************/
|
|
static int pt_input_register_device(struct input_dev *input, int max_slots)
|
|
{
|
|
__set_bit(BTN_TOUCH, input->keybit);
|
|
__set_bit(BTN_TOOL_FINGER, input->keybit);
|
|
__set_bit(BTN_TOOL_PEN, input->keybit);
|
|
return input_register_device(input);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
* FUNCTION: pt_init_function_ptrs
|
|
*
|
|
* SUMMARY: Function to init function pointer
|
|
*
|
|
* PARAMETERS:
|
|
* *md - pointer to touch data structure
|
|
******************************************************************************/
|
|
void pt_init_function_ptrs(struct pt_mt_data *md)
|
|
{
|
|
md->mt_function.report_slot_liftoff = pt_report_slot_liftoff;
|
|
md->mt_function.final_sync = pt_final_sync;
|
|
md->mt_function.input_sync = pt_input_sync;
|
|
md->mt_function.input_report = pt_input_report;
|
|
md->mt_function.input_register_device = pt_input_register_device;
|
|
}
|