| /* |
| * cyttsp5_mtb.c |
| * Parade TrueTouch(TM) Standard Product V5 Multi-Touch Protocol B Module. |
| * For use with Parade touchscreen controllers. |
| * Supported parts include: |
| * CYTMA5XX |
| * CYTMA448 |
| * CYTMA445A |
| * CYTT21XXX |
| * CYTT31XXX |
| * |
| * Copyright (C) 2015 Parade Technologies |
| * Copyright (C) 2012-2015 Cypress Semiconductor |
| * |
| * 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 "cyttsp5_regs.h" |
| #include <linux/input/mt.h> |
| #include <linux/version.h> |
| |
| static void cyttsp5_final_sync(struct input_dev *input, int max_slots, |
| int mt_sync_count, unsigned long *ids) |
| { |
| int t; |
| |
| for (t = 0; t < max_slots; t++) { |
| if (test_bit(t, ids)) |
| continue; |
| input_mt_slot(input, t); |
| input_mt_report_slot_state(input, MT_TOOL_FINGER, false); |
| } |
| |
| input_sync(input); |
| } |
| |
| static void cyttsp5_input_report(struct input_dev *input, int sig, |
| int t, int type) |
| { |
| input_mt_slot(input, t); |
| |
| if (type == CY_OBJ_STANDARD_FINGER || type == CY_OBJ_GLOVE |
| || type == CY_OBJ_HOVER) |
| input_mt_report_slot_state(input, MT_TOOL_FINGER, true); |
| else if (type == CY_OBJ_STYLUS) |
| input_mt_report_slot_state(input, MT_TOOL_PEN, true); |
| } |
| |
| static void cyttsp5_report_slot_liftoff(struct cyttsp5_mt_data *md, |
| int max_slots) |
| { |
| int t; |
| |
| if (md->num_prv_rec == 0) |
| return; |
| |
| for (t = 0; t < max_slots; t++) { |
| input_mt_slot(md->input, t); |
| input_mt_report_slot_state(md->input, |
| MT_TOOL_FINGER, false); |
| } |
| } |
| |
| static int cyttsp5_input_register_device(struct input_dev *input, int max_slots) |
| { |
| #if (KERNEL_VERSION(3, 7, 0) <= LINUX_VERSION_CODE) |
| input_mt_init_slots(input, max_slots, 0); |
| #else |
| input_mt_init_slots(input, max_slots); |
| #endif |
| return input_register_device(input); |
| } |
| |
| void cyttsp5_init_function_ptrs(struct cyttsp5_mt_data *md) |
| { |
| md->mt_function.report_slot_liftoff = cyttsp5_report_slot_liftoff; |
| md->mt_function.final_sync = cyttsp5_final_sync; |
| md->mt_function.input_sync = NULL; |
| md->mt_function.input_report = cyttsp5_input_report; |
| md->mt_function.input_register_device = cyttsp5_input_register_device; |
| } |
| |