476 lines
13 KiB
C
476 lines
13 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2016 MediaTek Inc.
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*/
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/*****************************************************************************
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*
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* File Name: focaltech_gestrue.c
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*
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* Author: Focaltech Driver Team
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*
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* Created: 2016-08-08
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*
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* Abstract:
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*
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* Reference:
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*
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*****************************************************************************/
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/*****************************************************************************
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* 1.Included header files
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*****************************************************************************/
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#include "focaltech_core.h"
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#if FTS_GESTURE_EN
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/******************************************************************************
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* Private constant and macro definitions using #define
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*****************************************************************************/
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#define KEY_GESTURE_U KEY_U
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#define KEY_GESTURE_UP KEY_UP
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#define KEY_GESTURE_DOWN KEY_DOWN
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#define KEY_GESTURE_LEFT KEY_LEFT
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#define KEY_GESTURE_RIGHT KEY_RIGHT
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#define KEY_GESTURE_O KEY_O
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#define KEY_GESTURE_E KEY_E
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#define KEY_GESTURE_M KEY_M
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#define KEY_GESTURE_L KEY_L
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#define KEY_GESTURE_W KEY_W
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#define KEY_GESTURE_S KEY_S
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#define KEY_GESTURE_V KEY_V
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#define KEY_GESTURE_C KEY_C
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#define KEY_GESTURE_Z KEY_Z
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#define GESTURE_LEFT 0x20
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#define GESTURE_RIGHT 0x21
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#define GESTURE_UP 0x22
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#define GESTURE_DOWN 0x23
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#define GESTURE_DOUBLECLICK 0x24
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#define GESTURE_O 0x30
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#define GESTURE_W 0x31
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#define GESTURE_M 0x32
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#define GESTURE_E 0x33
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#define GESTURE_L 0x44
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#define GESTURE_S 0x46
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#define GESTURE_V 0x54
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#define GESTURE_Z 0x41
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#define GESTURE_C 0x34
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/*****************************************************************************
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* Private enumerations, structures and unions using typedef
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*****************************************************************************/
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/*
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* gesture_id - mean which gesture is recognised
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* point_num - points number of this gesture
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* coordinate_x - All gesture point x coordinate
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* coordinate_y - All gesture point y coordinate
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* mode - gesture enable/disable, need enable by host
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* - 1:enable gesture function(default) 0:disable
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* active - gesture work flag,
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* always set 1 when suspend, set 0 when resume
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*/
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struct fts_gesture_st {
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u8 gesture_id;
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u8 point_num;
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u16 coordinate_x[FTS_GESTURE_POINTS_MAX];
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u16 coordinate_y[FTS_GESTURE_POINTS_MAX];
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u8 mode;
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u8 active;
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};
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/*****************************************************************************
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* Static variables
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*****************************************************************************/
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static struct fts_gesture_st fts_gesture_data;
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/*****************************************************************************
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* Global variable or extern global variabls/functions
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*****************************************************************************/
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/*****************************************************************************
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* Static function prototypes
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*****************************************************************************/
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static ssize_t fts_gesture_mode_show(struct device *dev,
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struct DEVICE_ATTR_RWibute *attr, char *buf)
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{
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int count = 0;
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u8 val = 0;
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struct input_dev *input_dev = fts_data->input_dev;
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mutex_lock(&input_dev->mutex);
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fts_read_reg(FTS_REG_GESTURE_EN, &val);
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count = snprintf(buf, PAGE_SIZE, "Gesture Mode:%s\n",
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fts_gesture_data.mode ? "On" : "Off");
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count += snprintf(buf + count, PAGE_SIZE, "Reg(0xD0)=%d\n", val);
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mutex_unlock(&input_dev->mutex);
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return count;
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}
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static ssize_t fts_gesture_mode_store(struct device *dev,
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struct DEVICE_ATTR_RWibute *attr, const char *buf,
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size_t count)
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{
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struct input_dev *input_dev = fts_data->input_dev;
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mutex_lock(&input_dev->mutex);
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if (FTS_SYSFS_ECHO_ON(buf)) {
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FTS_DEBUG("enable gesture");
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fts_gesture_data.mode = ENABLE;
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} else if (FTS_SYSFS_ECHO_OFF(buf)) {
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FTS_DEBUG("disable gesture");
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fts_gesture_data.mode = DISABLE;
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}
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mutex_unlock(&input_dev->mutex);
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return count;
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}
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static ssize_t fts_gesture_buf_show(struct device *dev,
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struct DEVICE_ATTR_RWibute *attr, char *buf)
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{
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int count = 0;
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int i = 0;
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struct input_dev *input_dev = fts_data->input_dev;
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struct fts_gesture_st *gesture = &fts_gesture_data;
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mutex_lock(&input_dev->mutex);
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count = snprintf(buf, PAGE_SIZE, "Gesture ID:%d\n",
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gesture->gesture_id);
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count += snprintf(buf + count, PAGE_SIZE, "Gesture PointNum:%d\n",
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gesture->point_num);
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count += snprintf(buf + count, PAGE_SIZE, "Gesture Points Buffer:\n");
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/* save point data,max:6 */
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for (i = 0; i < FTS_GESTURE_POINTS_MAX; i++) {
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count += snprintf(buf + count, PAGE_SIZE, "%3d(%4d,%4d) ", i,
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gesture->coordinate_x[i],
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gesture->coordinate_y[i]);
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if ((i + 1) % 4 == 0)
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count += snprintf(buf + count, PAGE_SIZE, "\n");
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}
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count += snprintf(buf + count, PAGE_SIZE, "\n");
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mutex_unlock(&input_dev->mutex);
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return count;
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}
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static ssize_t fts_gesture_buf_store(struct device *dev,
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struct DEVICE_ATTR_RWibute *attr,
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const char *buf, size_t count)
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{
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return -EPERM;
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}
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/* sysfs gesture node
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* read example: cat fts_gesture_mode ---read gesture mode
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* write example:echo 1 > fts_gesture_mode --- write gesture mode to 1
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*
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*/
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static DEVICE_ATTR_RW(fts_gesture_mode, 0644, fts_gesture_mode_show,
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fts_gesture_mode_store);
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/*
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* read example: cat fts_gesture_buf --- read gesture buf
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*/
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static DEVICE_ATTR_RW(fts_gesture_buf, 0644, fts_gesture_buf_show,
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fts_gesture_buf_store);
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static struct attribute *fts_gesture_mode_attrs[] = {
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&dev_attr_fts_gesture_mode.attr, &dev_attr_fts_gesture_buf.attr, NULL,
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};
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static struct attribute_group fts_gesture_group = {
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.attrs = fts_gesture_mode_attrs,
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};
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int fts_create_gesture_sysfs(struct device *dev)
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{
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int ret = 0;
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ret = sysfs_create_group(&dev->kobj, &fts_gesture_group);
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if (ret) {
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FTS_ERROR("gesture sys node create fail");
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sysfs_remove_group(&dev->kobj, &fts_gesture_group);
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return ret;
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}
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return 0;
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}
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static void fts_gesture_report(struct input_dev *input_dev, int gesture_id)
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{
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int gesture;
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FTS_DEBUG("gesture_id:0x%x", gesture_id);
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switch (gesture_id) {
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case GESTURE_LEFT:
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gesture = KEY_GESTURE_LEFT;
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break;
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case GESTURE_RIGHT:
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gesture = KEY_GESTURE_RIGHT;
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break;
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case GESTURE_UP:
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gesture = KEY_GESTURE_UP;
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break;
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case GESTURE_DOWN:
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gesture = KEY_GESTURE_DOWN;
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break;
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case GESTURE_DOUBLECLICK:
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gesture = KEY_GESTURE_U;
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break;
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case GESTURE_O:
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gesture = KEY_GESTURE_O;
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break;
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case GESTURE_W:
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gesture = KEY_GESTURE_W;
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break;
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case GESTURE_M:
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gesture = KEY_GESTURE_M;
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break;
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case GESTURE_E:
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gesture = KEY_GESTURE_E;
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break;
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case GESTURE_L:
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gesture = KEY_GESTURE_L;
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break;
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case GESTURE_S:
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gesture = KEY_GESTURE_S;
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break;
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case GESTURE_V:
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gesture = KEY_GESTURE_V;
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break;
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case GESTURE_Z:
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gesture = KEY_GESTURE_Z;
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break;
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case GESTURE_C:
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gesture = KEY_GESTURE_C;
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break;
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default:
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gesture = -1;
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break;
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}
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/* report event key */
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if (gesture != -1) {
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FTS_DEBUG("Gesture Code=%d", gesture);
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input_report_key(input_dev, gesture, 1);
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input_sync(input_dev);
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input_report_key(input_dev, gesture, 0);
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input_sync(input_dev);
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}
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}
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/*****************************************************************************
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* Name: fts_gesture_readdata
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* Brief: Read information about gesture: enable flag/gesture points..., if ges-
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* true enable, save gesture points' information, and report to OS.
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* It will be called this function every interrupt when FTS_GESTURE_EN = 1
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*
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* gesture data length: 1(enable) + 1(reserve) + 2(header) + 6 * 4
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* Input: ts_data - global struct data
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* data - gesture data buffer if non-flash, else NULL
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* Output:
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* Return: 0 - read gesture data successfully, the report data is gesture data
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* 1 - tp not in suspend/gesture not enable in TP FW
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* -Exx - error
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*****************************************************************************/
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int fts_gesture_readdata(struct fts_ts_data *ts_data, u8 *data)
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{
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int ret = 0;
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int i = 0;
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int index = 0;
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u8 buf[FTS_GESTURE_DATA_LEN] = {0};
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struct input_dev *input_dev = ts_data->input_dev;
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struct fts_gesture_st *gesture = &fts_gesture_data;
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if (!ts_data->suspended || (gesture->mode == DISABLE))
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return 1;
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ret = fts_read_reg(FTS_REG_GESTURE_EN, &buf[0]);
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if ((ret < 0) || (buf[0] != ENABLE)) {
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FTS_DEBUG("gesture not enable in fw, don't process gesture");
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return 1;
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}
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buf[2] = FTS_REG_GESTURE_OUTPUT_ADDRESS;
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ret = fts_read(&buf[2], 1, &buf[2], FTS_GESTURE_DATA_LEN - 2);
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if (ret < 0) {
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FTS_ERROR("read gesture header data fail");
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return ret;
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}
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/* init variable before read gesture point */
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memset(gesture->coordinate_x, 0, FTS_GESTURE_POINTS_MAX * sizeof(u16));
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memset(gesture->coordinate_y, 0, FTS_GESTURE_POINTS_MAX * sizeof(u16));
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gesture->gesture_id = buf[2];
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gesture->point_num = buf[3];
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FTS_DEBUG("gesture_id=%d, point_num=%d", gesture->gesture_id,
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gesture->point_num);
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/* save point data,max:6 */
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for (i = 0; i < FTS_GESTURE_POINTS_MAX; i++) {
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index = 4 * i + 4;
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gesture->coordinate_x[i] =
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(u16)(((buf[0 + index] & 0x0F) << 8) + buf[1 + index]);
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gesture->coordinate_y[i] =
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(u16)(((buf[2 + index] & 0x0F) << 8) + buf[3 + index]);
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}
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/* report gesture to OS */
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fts_gesture_report(input_dev, gesture->gesture_id);
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return 0;
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}
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void fts_gesture_recovery(struct fts_ts_data *ts_data)
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{
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if ((fts_gesture_data.mode == ENABLE) &&
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(fts_gesture_data.active == ENABLE)) {
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FTS_DEBUG("gesture recovery...");
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fts_write_reg(0xD1, 0xFF);
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fts_write_reg(0xD2, 0xFF);
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fts_write_reg(0xD5, 0xFF);
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fts_write_reg(0xD6, 0xFF);
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fts_write_reg(0xD7, 0xFF);
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fts_write_reg(0xD8, 0xFF);
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fts_write_reg(FTS_REG_GESTURE_EN, ENABLE);
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}
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}
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int fts_gesture_suspend(struct fts_ts_data *ts_data)
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{
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int ret = 0;
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int i = 0;
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u8 state = 0xFF;
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FTS_INFO("gesture suspend...");
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/* gesture not enable, return immediately */
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if (fts_gesture_data.mode == DISABLE) {
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FTS_DEBUG("gesture is disabled");
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return -EINVAL;
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}
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for (i = 0; i < 5; i++) {
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fts_write_reg(0xD1, 0xFF);
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fts_write_reg(0xD2, 0xFF);
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fts_write_reg(0xD5, 0xFF);
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fts_write_reg(0xD6, 0xFF);
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fts_write_reg(0xD7, 0xFF);
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fts_write_reg(0xD8, 0xFF);
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fts_write_reg(FTS_REG_GESTURE_EN, ENABLE);
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msleep(20);
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fts_read_reg(FTS_REG_GESTURE_EN, &state);
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if (state == ENABLE)
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break;
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}
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if (i >= 5) {
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FTS_ERROR("Enter into gesture(suspend) fail");
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fts_gesture_data.active = DISABLE;
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return -EIO;
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}
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ret = enable_irq_wake(ts_data->irq);
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if (ret)
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FTS_DEBUG("enable_irq_wake(irq:%d) fail", ts_data->irq);
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fts_gesture_data.active = ENABLE;
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FTS_INFO("Enter into gesture(suspend) successfully!");
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return 0;
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}
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int fts_gesture_resume(struct fts_ts_data *ts_data)
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{
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int ret = 0;
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int i = 0;
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u8 state = 0xFF;
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FTS_INFO("gesture resume...");
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/* gesture not enable, return immediately */
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if (fts_gesture_data.mode == DISABLE) {
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FTS_DEBUG("gesture is disabled");
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return -EINVAL;
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}
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if (fts_gesture_data.active == DISABLE) {
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FTS_DEBUG("gesture active is disable, return immediately");
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return -EINVAL;
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}
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fts_gesture_data.active = DISABLE;
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for (i = 0; i < 5; i++) {
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fts_write_reg(FTS_REG_GESTURE_EN, DISABLE);
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msleep(20);
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fts_read_reg(FTS_REG_GESTURE_EN, &state);
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if (state == DISABLE)
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break;
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}
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if (i >= 5) {
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FTS_ERROR("exit gesture(resume) fail");
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return -EIO;
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}
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ret = disable_irq_wake(ts_data->irq);
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if (ret)
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FTS_DEBUG("disable_irq_wake(irq:%d) fail", ts_data->irq);
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FTS_INFO("resume from gesture successfully");
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return 0;
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}
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int fts_gesture_init(struct fts_ts_data *ts_data)
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{
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struct input_dev *input_dev = ts_data->input_dev;
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FTS_FUNC_ENTER();
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input_set_capability(input_dev, EV_KEY, KEY_POWER);
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input_set_capability(input_dev, EV_KEY, KEY_GESTURE_U);
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input_set_capability(input_dev, EV_KEY, KEY_GESTURE_UP);
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input_set_capability(input_dev, EV_KEY, KEY_GESTURE_DOWN);
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input_set_capability(input_dev, EV_KEY, KEY_GESTURE_LEFT);
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input_set_capability(input_dev, EV_KEY, KEY_GESTURE_RIGHT);
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input_set_capability(input_dev, EV_KEY, KEY_GESTURE_O);
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input_set_capability(input_dev, EV_KEY, KEY_GESTURE_E);
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input_set_capability(input_dev, EV_KEY, KEY_GESTURE_M);
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input_set_capability(input_dev, EV_KEY, KEY_GESTURE_L);
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input_set_capability(input_dev, EV_KEY, KEY_GESTURE_W);
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input_set_capability(input_dev, EV_KEY, KEY_GESTURE_S);
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input_set_capability(input_dev, EV_KEY, KEY_GESTURE_V);
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input_set_capability(input_dev, EV_KEY, KEY_GESTURE_Z);
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input_set_capability(input_dev, EV_KEY, KEY_GESTURE_C);
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__set_bit(KEY_GESTURE_RIGHT, input_dev->keybit);
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__set_bit(KEY_GESTURE_LEFT, input_dev->keybit);
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__set_bit(KEY_GESTURE_UP, input_dev->keybit);
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__set_bit(KEY_GESTURE_DOWN, input_dev->keybit);
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__set_bit(KEY_GESTURE_U, input_dev->keybit);
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__set_bit(KEY_GESTURE_O, input_dev->keybit);
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__set_bit(KEY_GESTURE_E, input_dev->keybit);
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__set_bit(KEY_GESTURE_M, input_dev->keybit);
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__set_bit(KEY_GESTURE_W, input_dev->keybit);
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__set_bit(KEY_GESTURE_L, input_dev->keybit);
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__set_bit(KEY_GESTURE_S, input_dev->keybit);
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__set_bit(KEY_GESTURE_V, input_dev->keybit);
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__set_bit(KEY_GESTURE_C, input_dev->keybit);
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__set_bit(KEY_GESTURE_Z, input_dev->keybit);
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fts_create_gesture_sysfs(ts_data->dev);
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memset(&fts_gesture_data, 0, sizeof(struct fts_gesture_st));
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fts_gesture_data.mode = ENABLE;
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fts_gesture_data.active = DISABLE;
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FTS_FUNC_EXIT();
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return 0;
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}
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int fts_gesture_exit(struct fts_ts_data *ts_data)
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{
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FTS_FUNC_ENTER();
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sysfs_remove_group(&ts_data->dev->kobj, &fts_gesture_group);
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FTS_FUNC_EXIT();
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return 0;
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}
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#endif
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