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Tasmota/tasmota/tasmota_xdrv_driver/xdrv_55_touch.ino

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/*
xdrv_55_touch.ino - Touch controllers
Copyright (C) 2021 Gerhard Mutz, Theo Arends & Stephan Hadinger
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
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.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*******************************************************************************************\
* Universal TouchScreen driver, extensible via Berry
*
* API:
* void Touch_Init() - TODO
*
* uint32_t Touch_Status(int32_t sel)
* 0: return 1 if TSGlobal.touched
* 1: return x
* 2: return y
* -1: return raw x (before conversion for resistive)
* -2: return raw y
*
* void Touch_Check(void(*rotconvert)(int16_t *x, int16_t *y))
*
* void TS_RotConvert(int16_t *x, int16_t *y) - calls the renderer's rotation converter
\*******************************************************************************************/
#if defined(USE_LVGL_TOUCHSCREEN) || defined(USE_FT5206) || defined(USE_XPT2046) || defined(USE_LILYGO47) || defined(USE_TOUCH_BUTTONS) || defined(SIMPLE_RES_TOUCH)
#ifdef USE_DISPLAY_LVGL_ONLY
#undef USE_TOUCH_BUTTONS
#endif
#include <renderer.h>
#define XDRV_55 55
// Codes for gestures, when supported by the Touch Screen controller
enum TS_Gesture {
TS_Gest_None = 0,
TS_Gest_Move_Up = 0x10,
TS_Gest_Move_Down = 0x11,
TS_Gest_Move_Left = 0x12,
TS_Gest_Move_Right = 0x13,
TS_Gest_Zoom_In = 0x20,
TS_Gest_Zoom_Out = 0x21,
};
typedef struct TSGlobal_t {
int16_t raw_touch_xp = 0;
int16_t raw_touch_yp = 0;
int16_t touch_xp = 0;
int16_t touch_yp = 0;
uint8_t touches = 0; // number of touches for multi-touch
uint8_t gesture = 0; // gesture code
// multi-point is not yet supported
bool touched = false;
bool external_ts = false;
} TSGlobal_t;
TSGlobal_t TSGlobal;
bool FT5206_found = false;
bool XPT2046_found = false;
bool SRES_found = false;
#ifndef MAX_TOUCH_BUTTONS
#define MAX_TOUCH_BUTTONS 16
#endif
#ifdef USE_TOUCH_BUTTONS
VButton *buttons[MAX_TOUCH_BUTTONS];
#endif
void Touch_SetStatus(uint8_t touches, uint16_t raw_x, uint16_t raw_y, uint8_t gesture) {
TSGlobal.external_ts = true;
TSGlobal.gesture = gesture;
TSGlobal.touches = touches;
TSGlobal.touched = (TSGlobal.touches > 0);
TSGlobal.touch_xp = TSGlobal.raw_touch_xp = raw_x;
TSGlobal.touch_yp = TSGlobal.raw_touch_yp = raw_y;
TS_RotConvert(&TSGlobal.touch_xp, &TSGlobal.touch_yp);
}
// return true if succesful, false if not configured
bool Touch_GetStatus(uint8_t* touches, uint16_t* x, uint16_t* y, uint8_t* gesture,
uint16_t* raw_x, uint16_t* raw_y) {
if (TSGlobal.external_ts || FT5206_found || XPT2046_found) {
if (touches) { *touches = TSGlobal.touches; }
if (x) { *x = TSGlobal.touch_xp; }
if (y) { *y = TSGlobal.touch_yp; }
if (raw_x) { *raw_x = TSGlobal.raw_touch_xp; }
if (raw_y) { *raw_y = TSGlobal.raw_touch_yp; }
if (gesture) { *touches = TSGlobal.gesture; }
return true;
}
return false;
}
uint32_t Touch_Status(int32_t sel) {
if (TSGlobal.external_ts || FT5206_found || XPT2046_found) {
switch (sel) {
case 0:
return TSGlobal.touched;
case 1:
return TSGlobal.touch_xp;
case 2:
return TSGlobal.touch_yp;
case -1: // before calibration
return TSGlobal.raw_touch_xp;
case -2:
return TSGlobal.raw_touch_yp;
}
return 0;
} else {
return 0;
}
}
#ifdef USE_M5STACK_CORE2
uint8_t tbstate[3];
#endif // USE_M5STACK_CORE2
// simple resistive touch pins
// with dma it should check for active transfers
// so currently dont use dma
#ifdef SIMPLE_RES_TOUCH
struct RES_TOUCH {
int8_t xplus;
int8_t xminus;
int8_t yplus;
int8_t yminus;
uint16_t xp;
uint16_t yp;
} sres_touch;
void Simple_ResTouch_Init(int8_t xp, int8_t xm, int8_t yp, int8_t ym) {
sres_touch.xplus = xp; // d1
sres_touch.xminus = xm; // cs
sres_touch.yplus = yp; // rs
sres_touch.yminus = ym; // d0
SRES_found = true;
AddLog(LOG_LEVEL_INFO, PSTR("TS: simple resistive touch init"));
}
#define SRES_THRESHOLD 500
bool SRES_touched() {
uint32_t val = renderer->get_sr_touch(sres_touch.xplus, sres_touch.xminus, sres_touch.yplus, sres_touch.yminus);
if (val == 0) {
return false;
}
sres_touch.xp = val >> 16;
sres_touch.yp = val & 0xffff;
int16_t xp = sres_touch.xp;
int16_t yp = sres_touch.yp;
//AddLog(LOG_LEVEL_INFO, "TS x=%i y=%i)", xp, yp);
if (xp > SRES_THRESHOLD && yp > SRES_THRESHOLD) {
return 1;
}
return 0;
}
int16_t SRES_x() {
return sres_touch.xp;
}
int16_t SRES_y() {
return sres_touch.yp;
}
#endif
#ifdef USE_FT5206
#include <FT5206.h>
// touch panel controller
#undef FT5206_address
#define FT5206_address 0x38
FT5206_Class *FT5206_touchp;
bool FT5206_Touch_Init(TwoWire &i2c) {
FT5206_found = false;
FT5206_touchp = new FT5206_Class();
if (FT5206_touchp->begin(i2c, FT5206_address)) {
I2cSetActiveFound(FT5206_address, "FT5206");
FT5206_found = true;
}
//AddLog(LOG_LEVEL_INFO, PSTR("TS: FT5206 %d"),FT5206_found);
return FT5206_found;
}
bool FT5206_touched() {
return FT5206_touchp->touched();
}
int16_t FT5206_x() {
TP_Point pLoc = FT5206_touchp->getPoint(0);
return pLoc.x;
}
int16_t FT5206_y() {
TP_Point pLoc = FT5206_touchp->getPoint(0);
return pLoc.y;
}
#endif // USE_FT5206
#ifdef USE_XPT2046
#include <XPT2046_Touchscreen.h>
XPT2046_Touchscreen *XPT2046_touchp;
bool XPT2046_Touch_Init(uint16_t CS) {
XPT2046_touchp = new XPT2046_Touchscreen(CS);
XPT2046_found = XPT2046_touchp->begin();
if (XPT2046_found) {
AddLog(LOG_LEVEL_INFO, PSTR("TS: XPT2046"));
}
return XPT2046_found;
}
bool XPT2046_touched() {
return XPT2046_touchp->touched();
}
int16_t XPT2046_x() {
TS_Point pLoc = XPT2046_touchp->getPoint();
return pLoc.x;
}
int16_t XPT2046_y() {
TS_Point pLoc = XPT2046_touchp->getPoint();
return pLoc.y;
}
#endif // USE_XPT2046
void Touch_Check(void(*rotconvert)(int16_t *x, int16_t *y)) {
static bool was_touched = false; // flag used to log the data sent when the screen was just released
#ifdef SIMPLE_RES_TOUCH
if (SRES_found) {
TSGlobal.touched = SRES_touched();
if (TSGlobal.touched) {
TSGlobal.raw_touch_xp = SRES_x();
TSGlobal.raw_touch_yp = SRES_y();
}
}
#endif
#ifdef USE_FT5206
if (FT5206_found) {
TSGlobal.touched = FT5206_touched();
if (TSGlobal.touched) {
TSGlobal.raw_touch_xp = FT5206_x();
TSGlobal.raw_touch_yp = FT5206_y();
}
}
#endif // USE_FT5206
#ifdef USE_XPT2046
if (XPT2046_found) {
TSGlobal.touched = XPT2046_touched();
if (TSGlobal.touched) {
TSGlobal.raw_touch_xp = XPT2046_x();
TSGlobal.raw_touch_yp = XPT2046_y();
}
}
#endif // USE_XPT2046
TSGlobal.touch_xp = TSGlobal.raw_touch_xp;
TSGlobal.touch_yp = TSGlobal.raw_touch_yp;
if (TSGlobal.touched) {
was_touched = true;
#ifdef USE_TOUCH_BUTTONS
#ifdef USE_M5STACK_CORE2
// handle 3 built in touch buttons
uint16_t xcenter = 80;
#define TDELTA 30
#define TYPOS 275
for (uint32_t tbut = 0; tbut < 3; tbut++) {
if (TSGlobal.touch_xp > (xcenter - TDELTA) && TSGlobal.touch_xp < (xcenter + TDELTA) && TSGlobal.touch_yp > (TYPOS - TDELTA) && TSGlobal.touch_yp < (TYPOS + TDELTA)) {
// hit a button
if (!(tbstate[tbut] & 1)) {
// pressed
tbstate[tbut] |= 1;
//AddLog(LOG_LEVEL_INFO, PSTR("tbut: %d pressed"), tbut);
Touch_MQTT(tbut, "BIB", tbstate[tbut] & 1);
}
}
xcenter += 100;
}
#endif // USE_M5STACK_CORE2
#endif // USE_TOUCH_BUTTONS
rotconvert(&TSGlobal.touch_xp, &TSGlobal.touch_yp);
AddLog(LOG_LEVEL_DEBUG_MORE, "TS : TSGlobal.touched x=%i y=%i (raw x=%i y=%i)", TSGlobal.touch_xp, TSGlobal.touch_yp, TSGlobal.raw_touch_xp, TSGlobal.raw_touch_yp);
#ifdef USE_TOUCH_BUTTONS
CheckTouchButtons(TSGlobal.touched, TSGlobal.touch_xp, TSGlobal.touch_yp);
#endif // USE_TOUCH_BUTTONS
} else {
#ifdef USE_M5STACK_CORE2
for (uint32_t tbut = 0; tbut < 3; tbut++) {
if (tbstate[tbut] & 1) {
// released
tbstate[tbut] &= 0xfe;
Touch_MQTT(tbut, "BIB", tbstate[tbut] & 1);
//AddLog(LOG_LEVEL_INFO, PSTR("tbut: %d released"), tbut);
}
}
#endif // USE_M5STACK_CORE2
rotconvert(&TSGlobal.touch_xp, &TSGlobal.touch_yp); // still do rot convert if not TSGlobal.touched
if (was_touched) {
AddLog(LOG_LEVEL_DEBUG_MORE, "TS : released x=%i y=%i (raw x=%i y=%i)", TSGlobal.touch_xp, TSGlobal.touch_yp, TSGlobal.raw_touch_xp, TSGlobal.raw_touch_yp);
was_touched = false;
}
#ifdef USE_TOUCH_BUTTONS
CheckTouchButtons(TSGlobal.touched, TSGlobal.touch_xp, TSGlobal.touch_yp);
#endif // USE_TOUCH_BUTTONS
}
}
extern uint8_t GT911_found;
#ifdef USE_TOUCH_BUTTONS
void Touch_MQTT(uint8_t index, const char *cp, uint32_t val) {
#ifdef USE_FT5206
if (FT5206_found) ResponseTime_P(PSTR(",\"FT5206\":{\"%s%d\":\"%d\"}}"), cp, index+1, val);
#endif
#ifdef USE_XPT2046
if (XPT2046_found) ResponseTime_P(PSTR(",\"XPT2046\":{\"%s%d\":\"%d\"}}"), cp, index+1, val);
#endif // USE_XPT2046
#ifdef USE_GT911
if (GT911_found) ResponseTime_P(PSTR(",\"GT911\":{\"%s%d\":\"%d\"}}"), cp, index+1, val);
#endif // USE_XPT2046
MqttPublishTeleSensor();
}
void EP_Drawbutton(uint32_t count) {
renderer->ep_update_area(buttons[count]->spars.xp, buttons[count]->spars.yp, buttons[count]->spars.xs, buttons[count]->spars.ys, 3);
}
void Touch_RDW_BUTT(uint32_t count, uint32_t pwr) {
buttons[count]->xdrawButton(pwr);
EP_Drawbutton(count);
if (pwr) buttons[count]->vpower.on_off = 1;
else buttons[count]->vpower.on_off = 0;
}
void CheckTouchButtons(bool touched, int16_t touch_x, int16_t touch_y) {
uint16_t temp;
uint8_t rbutt=0;
uint8_t vbutt=0;
if (!renderer) return;
if (touched) {
//AddLog(LOG_LEVEL_DEBUG_MORE, PSTR("touch after convert %d - %d"), touch_x, touch_y);
// now must compare with defined buttons
for (uint8_t count = 0; count < MAX_TOUCH_BUTTONS; count++) {
if (buttons[count]) {
if (!buttons[count]->vpower.slider) {
if (!buttons[count]->vpower.disable) {
if (buttons[count]->contains(touch_x, touch_y)) {
// did hit
buttons[count]->press(true);
if (buttons[count]->justPressed()) {
if (!buttons[count]->vpower.is_virtual) {
uint8_t pwr=bitRead(TasmotaGlobal.power, rbutt);
if (!SendKey(KEY_BUTTON, rbutt+1, POWER_TOGGLE)) {
Touch_RDW_BUTT(count, !pwr);
ExecuteCommandPower(rbutt+1, POWER_TOGGLE, SRC_BUTTON);
}
} else {
// virtual button
const char *cp;
if (!buttons[count]->vpower.is_pushbutton) {
// toggle button
buttons[count]->vpower.on_off ^= 1;
cp="TBT";
} else {
// push button
buttons[count]->vpower.on_off = 1;
cp="PBT";
}
buttons[count]->xdrawButton(buttons[count]->vpower.on_off);
EP_Drawbutton(count);
Touch_MQTT(count, cp, buttons[count]->vpower.on_off);
}
}
}
if (!buttons[count]->vpower.is_virtual) {
rbutt++;
} else {
vbutt++;
}
}
} else {
// slider
if (buttons[count]->didhit(touch_x, touch_y)) {
uint16_t value = buttons[count]->UpdateSlider(touch_x, touch_y);
EP_Drawbutton(count);
Touch_MQTT(count, "SLD", value);
}
}
}
}
} else {
// no hit
for (uint8_t count = 0; count < MAX_TOUCH_BUTTONS; count++) {
if (buttons[count]) {
if (!buttons[count]->vpower.slider) {
buttons[count]->press(false);
if (buttons[count]->justReleased()) {
if (buttons[count]->vpower.is_virtual) {
if (buttons[count]->vpower.is_pushbutton) {
// push button
buttons[count]->vpower.on_off = 0;
Touch_MQTT(count,"PBT", buttons[count]->vpower.on_off);
buttons[count]->xdrawButton(buttons[count]->vpower.on_off);
EP_Drawbutton(count);
}
}
}
if (!buttons[count]->vpower.is_virtual) {
// check if power button stage changed
uint8_t pwr = bitRead(TasmotaGlobal.power, rbutt);
uint8_t vpwr = buttons[count]->vpower.on_off;
if (pwr != vpwr) {
Touch_RDW_BUTT(count, pwr);
}
rbutt++;
}
}
}
}
}
}
#endif // USE_TOUCH_BUTTONS
void TS_RotConvert(int16_t *x, int16_t *y) {
if (renderer) renderer->TS_RotConvert(x, y);
}
/*********************************************************************************************\
* Interface
\*********************************************************************************************/
bool Xdrv55(uint32_t function) {
bool result = false;
switch (function) {
case FUNC_INIT:
break;
case FUNC_EVERY_100_MSECOND:
if (FT5206_found || XPT2046_found || SRES_found) {
Touch_Check(TS_RotConvert);
}
break;
}
return result;
}
#else // #if defined(USE_FT5206) || defined(USE_XPT2046) || defined(USE_LILYGO47) || defined(USE_TOUCH_BUTTONS)
// dummy for LVGL without a touch controller
uint32_t Touch_Status(int32_t sel) {
return 0;
}
#endif // #if defined(USE_FT5206) || defined(USE_XPT2046) || defined(USE_LILYGO47) || defined(USE_TOUCH_BUTTONS)
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