Bodmer/TFT_eSPI
1
0
Fork 1
mirror of https://github.com/Bodmer/TFT_eSPI.git synced 2025-08-05 21:54:42 +02:00
Code Issues Packages Projects Releases Wiki Activity

Change to always use mutex handling with ESP32

Browse Source 
Grabbing the mutex for exclusive SPI access by the TFT library causes a
crash when OTA updates are done. Always switching the hal mutex is only
marginally slower so that is now the default.
This commit is contained in:
Bodmer
2017-10-20 18:05:21 +01:00
parent 167dcd5373
commit 5591c6bae0
1 changed files with 32 additions and 34 deletions
Download Patch File Download Diff File Expand all files Collapse all files

66
TFT_eSPI.cpp
View File

@@ -21,11 +21,13 @@
#include <pgmspace.h>
//#include <limits.h>
//#include "pins_arduino.h"
//#include "wiring_private.h"
#include <SPI.h>
// SUPPORT_TRANSACTIONS is manadatory for ESP32 so the hal mutex is toggled
#if defined (ESP32) && !defined (SUPPORT_TRANSACTIONS)
#define SUPPORT_TRANSACTIONS
#endif
// If it is a 16bit serial display we must transfer 16 bits every time
#ifdef RPI_ILI9486_DRIVER
#define SEND_16_BITS
@@ -191,18 +193,12 @@ void TFT_eSPI::init(void)
inTransaction = false;
locked = true;
#ifndef SUPPORT_TRANSACTIONS
// SUPPORT_TRANSACTIONS is manadatory for ESP32 so the hal mutex is toggled
// so the code here is for ESP8266 only
#if !defined (SUPPORT_TRANSACTIONS) && defined (ESP8266)
SPI.setBitOrder(MSBFIRST);
SPI.setDataMode(SPI_MODE0);
SPI.setFrequency(SPI_FREQUENCY);
#ifdef ESP32 // Unlock the SPI hal mutex and set the lock management flags
SPI.beginTransaction(SPISettings(SPI_FREQUENCY, MSBFIRST, SPI_MODE0));
inTransaction = true; // Flag to stop intermediate spi_end calls
locked = false; // Flag to stop repeat beginTransaction calls
#endif
#endif
// Set to output once again in case D6 (MISO) is used for CS
@@ -3647,13 +3643,15 @@ void spiWriteBlock(uint16_t color, uint32_t repeat)
}
#endif
// The following touch screen support code added by maxpautsch 1/10/17
// https://github.com/maxpautsch
// Define TOUCH_CS is the user setup file to enable this code
// An example is provided is 480x320 folder
#ifdef TOUCH_CS
/***************************************************************************************
** Function name: getTouchRaw
** Description: read raw position of touchpad if pressed. Return false if not pressed.
***************************************************************************************/
#ifdef TOUCH_CS
uint8_t TFT_eSPI::getTouchRaw(uint16_t *x, uint16_t *y){
uint16_t tmp;
CS_H;
@@ -3733,9 +3731,9 @@ uint8_t TFT_eSPI::getTouch(uint16_t *x, uint16_t *y){
/***************************************************************************************
** Function name: calibrateTouch
** Description: generates calibration data for touchscreen.
** Description: generates calibration parameters for touchscreen.
***************************************************************************************/
uint8_t TFT_eSPI::calibrateTouch(uint16_t *data, uint32_t color_bg, uint32_t color_fg, uint8_t size){
uint8_t TFT_eSPI::calibrateTouch(uint16_t *parameters, uint32_t color_bg, uint32_t color_fg, uint8_t size){
int16_t values[] = {0,0,0,0,0,0,0,0};
uint16_t x_tmp, y_tmp;
@@ -3823,33 +3821,33 @@ uint8_t TFT_eSPI::calibrateTouch(uint16_t *data, uint32_t color_bg, uint32_t col
touchCalibration_x1 -= touchCalibration_x0;
touchCalibration_y1 -= touchCalibration_y0;
// export data, if pointer valid
if(data != NULL){
data[0] = touchCalibration_x0;
data[1] = touchCalibration_x1;
data[2] = touchCalibration_y0;
data[3] = touchCalibration_y1;
data[4] = touchCalibration_rotate | (touchCalibration_invert_x <<1) | (touchCalibration_invert_y <<2);
// export parameters, if pointer valid
if(parameters != NULL){
parameters[0] = touchCalibration_x0;
parameters[1] = touchCalibration_x1;
parameters[2] = touchCalibration_y0;
parameters[3] = touchCalibration_y1;
parameters[4] = touchCalibration_rotate | (touchCalibration_invert_x <<1) | (touchCalibration_invert_y <<2);
}
}
/***************************************************************************************
** Function name: setTouch
** Description: imports calibration data for touchscreen.
** Description: imports calibration parameters for touchscreen.
***************************************************************************************/
void TFT_eSPI::setTouch(uint16_t *data){
touchCalibration_x0 = data[0];
touchCalibration_x1 = data[1];
touchCalibration_y0 = data[2];
touchCalibration_y1 = data[3];
void TFT_eSPI::setTouch(uint16_t *parameters){
touchCalibration_x0 = parameters[0];
touchCalibration_x1 = parameters[1];
touchCalibration_y0 = parameters[2];
touchCalibration_y1 = parameters[3];
touchCalibration_rotate = data[4] & 0x01;
touchCalibration_invert_x = data[4] & 0x02;
touchCalibration_invert_y = data[4] & 0x04;
touchCalibration_rotate = parameters[4] & 0x01;
touchCalibration_invert_x = parameters[4] & 0x02;
touchCalibration_invert_y = parameters[4] & 0x04;
}
#endif
#endif // TOUCH_CS
/***************************************************
The majority of code in this file is "FunWare", the only condition of use of