cc17046e7a
Co-authored-by: raphaelcoeffic <raphael.coeffic@frafos.com> Co-authored-by: rotorman <risto.koiva@web.de> Co-authored-by: Xy201207 <yaoxu@flysky.com> Co-authored-by: Peter Feerick <peter.feerick@gmail.com>
561 lines
16 KiB
C++
561 lines
16 KiB
C++
/*
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* Copyright (C) EdgeTX
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*
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* Based on code named
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* opentx - https://github.com/opentx/opentx
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* th9x - http://code.google.com/p/th9x
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* er9x - http://code.google.com/p/er9x
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* gruvin9x - http://code.google.com/p/gruvin9x
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*
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* License GPLv2: http://www.gnu.org/licenses/gpl-2.0.html
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include "stm32_hal_ll.h"
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#include "stm32_hal.h"
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#include "stm32_i2c_driver.h"
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#include "stm32_gpio_driver.h"
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#include "stm32_exti_driver.h"
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#include "hal.h"
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#include "timers_driver.h"
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#include "delays_driver.h"
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#include "tp_cst340.h"
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#include "debug.h"
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#define TOUCH_FT6236_I2C_ADDRESS (0x70>>1)
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#define TOUCH_CST340_I2C_ADDRESS 0x1A
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extern uint8_t TouchControllerType;
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volatile static bool touchEventOccured;
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enum TouchControllers {TC_NONE, TC_FT6236, TC_CST340};
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TouchControllers touchController = TC_NONE;
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static tc_handle_TypeDef tc_handle = {0, 0};
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tmr10ms_t downTime = 0;
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tmr10ms_t tapTime = 0;
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short tapCount = 0;
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#define TAP_TIME 25
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struct TouchControllerDescriptor
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{
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void (*read)(uint16_t * X, uint16_t * Y, uint32_t * event);
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uint8_t (*detectTouch)();
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void (*printDebugInfo)();
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uint32_t contactEvent;
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};
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static const TouchControllerDescriptor *tc = nullptr;
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static TouchState internalTouchState = {};
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static void _cst340_exti_isr(void)
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{
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touchEventOccured = true;
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}
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static void TOUCH_AF_ExtiStop(void)
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{
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stm32_exti_disable(TOUCH_INT_EXTI_Line);
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}
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static void TOUCH_AF_ExtiConfig(void)
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{
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__HAL_RCC_SYSCFG_CLK_ENABLE();
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LL_SYSCFG_SetEXTISource(TOUCH_INT_EXTI_Port, TOUCH_INT_EXTI_SysCfgLine);
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stm32_exti_enable(TOUCH_INT_EXTI_Line,
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LL_EXTI_TRIGGER_FALLING,
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_cst340_exti_isr);
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}
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static void TOUCH_AF_GPIOConfig(void)
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{
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LL_GPIO_InitTypeDef gpioInit;
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LL_GPIO_StructInit(&gpioInit);
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stm32_gpio_enable_clock(TOUCH_RST_GPIO);
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stm32_gpio_enable_clock(TOUCH_INT_GPIO);
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gpioInit.Mode = LL_GPIO_MODE_OUTPUT;
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gpioInit.Speed = LL_GPIO_SPEED_FREQ_LOW;
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gpioInit.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
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gpioInit.Pull = LL_GPIO_PULL_NO;
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gpioInit.Pin = TOUCH_RST_GPIO_PIN;
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LL_GPIO_Init(TOUCH_RST_GPIO, &gpioInit);
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LL_GPIO_SetOutputPin(TOUCH_RST_GPIO, TOUCH_RST_GPIO_PIN);
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gpioInit.Pin = TOUCH_INT_GPIO_PIN;
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gpioInit.Mode = LL_GPIO_MODE_INPUT;
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gpioInit.Pull = LL_GPIO_PULL_UP;
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gpioInit.OutputType = LL_GPIO_OUTPUT_OPENDRAIN;
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LL_GPIO_Init(TOUCH_INT_GPIO, &gpioInit);
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LL_GPIO_SetOutputPin(TOUCH_INT_GPIO, TOUCH_INT_GPIO_PIN);
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}
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void I2C_Init_Radio(void)
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{
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TRACE("CST340 I2C Init");
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if (stm32_i2c_init(TOUCH_I2C_BUS, TOUCH_I2C_CLK_RATE) < 0) {
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TRACE("CST340 ERROR: stm32_i2c_init failed");
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return;
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}
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}
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// void Touch_DeInit()
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// {
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// I2C_DeInit(I2C_B1);
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// __HAL_RCC_I2C1_FORCE_RESET();
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// delay_ms(150);
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// __HAL_RCC_I2C1_RELEASE_RESET();
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// }
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#define I2C_TIMEOUT_MAX 5 // 5 ms
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bool touch_i2c_read(uint8_t addr, uint8_t reg, uint8_t * data, uint8_t len)
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{
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// if(touchController == TC_CST836U)
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// {
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// if(stm32_i2c_master_tx(TOUCH_I2C_BUS, addr, ®, 1, 3) < 0)
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// return false;
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// delay_us(5);
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// if(stm32_i2c_master_rx(TOUCH_I2C_BUS, addr, data, len, I2C_TIMEOUT_MAX) < 0)
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// return false;
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// } else {
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if (stm32_i2c_read(TOUCH_I2C_BUS, addr, reg, 1, data, len, I2C_TIMEOUT_MAX) < 0)
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return false;
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// }
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return true;
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}
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#if 0
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static bool touch_i2c_write(uint8_t addr, uint8_t reg, uint8_t * data, uint8_t len)
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{
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if (stm32_i2c_write(TOUCH_I2C_BUS, addr, reg, 1, data, len, I2C_TIMEOUT_MAX) < 0)
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return false;
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return true;
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}
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static void TS_IO_Write(uint8_t addr, uint8_t reg, uint8_t data)
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{
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uint8_t tryCount = 3;
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while (!touch_i2c_write(addr, reg, &data, 1)) {
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if (--tryCount == 0) break;
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I2C_Init();
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}
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}
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#endif
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static uint8_t TS_IO_Read(uint8_t addr, uint8_t reg)
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{
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uint8_t result;
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uint8_t tryCount = 3;
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while (!touch_i2c_read(addr, reg, &result, 1)) {
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if (--tryCount == 0) break;
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I2C_Init_Radio();
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// I2C_Init();
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}
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return result;
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}
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static uint16_t TS_IO_ReadMultiple(uint8_t addr, uint8_t reg, uint8_t * buffer, uint16_t length)
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{
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uint8_t tryCount = 3;
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while (!touch_i2c_read(addr, reg, buffer, length)) {
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if (--tryCount == 0) break;
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I2C_Init_Radio();
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// I2C_Init();
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}
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return 1;
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}
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static void touch_ft6236_debug_info(void)
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{
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#if defined(DEBUG)
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TRACE("ft6x36: thrhld = %d", TS_IO_Read(TOUCH_FT6236_I2C_ADDRESS, TOUCH_FT6236_REG_TH_GROUP) * 4);
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TRACE("ft6x36: rep rate=", TS_IO_Read(TOUCH_FT6236_I2C_ADDRESS, TOUCH_FT6236_REG_PERIODACTIVE) * 10);
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TRACE("ft6x36: fw lib 0x%02X %02X", TS_IO_Read(TOUCH_FT6236_I2C_ADDRESS, TOUCH_FT6236_REG_LIB_VER_H), TS_IO_Read(TOUCH_FT6236_I2C_ADDRESS, TOUCH_FT6236_REG_LIB_VER_L));
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TRACE("ft6x36: fw v 0x%02X", TS_IO_Read(TOUCH_FT6236_I2C_ADDRESS, TOUCH_FT6236_REG_FIRMID));
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TRACE("ft6x36: CHIP ID 0x%02X", TS_IO_Read(TOUCH_FT6236_I2C_ADDRESS, TOUCH_FT6236_REG_CIPHER));
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TRACE("ft6x36: CTPM ID 0x%02X", TS_IO_Read(TOUCH_FT6236_I2C_ADDRESS, TOUCH_FT6236_REG_FOCALTECH_ID));
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TRACE("ft6x36: rel code 0x%02X", TS_IO_Read(TOUCH_FT6236_I2C_ADDRESS, TOUCH_FT6236_REG_RELEASE_CODE_ID));
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#endif
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}
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/**
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* @brief Return if there is touches detected or not.
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* Try to detect new touches and forget the old ones (reset internal global
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* variables).
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* @param DeviceAddr: Device address on communication Bus.
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* @retval : Number of active touches detected (can be 0, 1 or 2).
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*/
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static uint8_t ft6x06_TS_DetectTouch()
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{
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volatile uint8_t nbTouch = 0;
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/* Read register FT6206_TD_STAT_REG to check number of touches detection */
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nbTouch = TS_IO_Read(TOUCH_FT6236_I2C_ADDRESS, FT6206_TD_STAT_REG);
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nbTouch &= FT6206_TD_STAT_MASK;
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if (nbTouch > FT6206_MAX_DETECTABLE_TOUCH) {
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/* If invalid number of touch detected, set it to zero */
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nbTouch = 0;
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}
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/* Update ft6x06 driver internal global : current number of active touches */
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tc_handle.currActiveTouchNb = nbTouch;
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/* Reset current active touch index on which to work on */
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tc_handle.currActiveTouchIdx = 0;
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return (nbTouch);
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}
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#if 0
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/**
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* @brief Get the touch detailed informations on touch number 'touchIdx' (0..1)
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* This touch detailed information contains :
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* - weight that was applied to this touch
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* - sub-area of the touch in the touch panel
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* - event of linked to the touch (press down, lift up, ...)
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* @param DeviceAddr: Device address on communication Bus (I2C slave address of FT6x06).
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* @param touchIdx : Passed index of the touch (0..1) on which we want to get the
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* detailed information.
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* @param pWeight : Pointer to to get the weight information of 'touchIdx'.
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* @param pArea : Pointer to to get the sub-area information of 'touchIdx'.
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* @param pEvent : Pointer to to get the event information of 'touchIdx'.
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* @retval None.
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*/
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static void ft6x06_TS_GetTouchInfo(uint16_t DeviceAddr,
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uint32_t touchIdx,
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uint32_t * pWeight,
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uint32_t * pArea,
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uint32_t * pEvent)
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{
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uint8_t regAddress = 0;
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uint8_t dataxy[3];
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if (touchIdx < ft6x06_handle.currActiveTouchNb) {
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switch (touchIdx) {
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case 0 :
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regAddress = FT6206_P1_WEIGHT_REG;
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break;
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case 1 :
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regAddress = FT6206_P2_WEIGHT_REG;
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break;
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default :
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break;
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} /* end switch(touchIdx) */
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/* Read weight, area and Event Id of touch index */
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TS_IO_ReadMultiple(DeviceAddr, regAddress, dataxy, sizeof(dataxy));
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/* Return weight of touch index */
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*pWeight = (dataxy[0] & FT6206_TOUCH_WEIGHT_MASK) >> FT6206_TOUCH_WEIGHT_SHIFT;
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/* Return area of touch index */
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*pArea = (dataxy[1] & FT6206_TOUCH_AREA_MASK) >> FT6206_TOUCH_AREA_SHIFT;
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/* Return Event Id of touch index */
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*pEvent = (dataxy[2] & FT6206_TOUCH_EVT_FLAG_MASK) >> FT6206_TOUCH_EVT_FLAG_SHIFT;
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} /* of if(touchIdx < ft6x06_handle.currActiveTouchNb) */
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}
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#endif
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/**
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* @brief Get the touch screen X and Y positions values
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* Manage multi touch thanks to touch Index global
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* variable 'tc_handle.currActiveTouchIdx'.
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* @param DeviceAddr: Device address on communication Bus.
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* @param X: Pointer to X position value
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* @param Y: Pointer to Y position value
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* @retval None.
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*/
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static void ft6x06_TS_GetXY(uint16_t * X, uint16_t * Y, uint32_t * event)
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{
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uint8_t regAddress = 0;
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uint8_t dataxy[4];
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if (tc_handle.currActiveTouchIdx < tc_handle.currActiveTouchNb) {
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switch (tc_handle.currActiveTouchIdx) {
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case 0 :
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regAddress = FT6206_P1_XH_REG;
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break;
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case 1 :
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regAddress = FT6206_P2_XH_REG;
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break;
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default :
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break;
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}
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/* Read X and Y positions */
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TS_IO_ReadMultiple(TOUCH_FT6236_I2C_ADDRESS, regAddress, dataxy, sizeof(dataxy));
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/* Send back ready X position to caller */
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*X = ((dataxy[0] & FT6206_MSB_MASK) << 8) | (dataxy[1] & FT6206_LSB_MASK);
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/* Send back ready Y position to caller */
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*Y = ((dataxy[2] & FT6206_MSB_MASK) << 8) | (dataxy[3] & FT6206_LSB_MASK);
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*event = (dataxy[0] & FT6206_TOUCH_EVT_FLAG_MASK) >> FT6206_TOUCH_EVT_FLAG_SHIFT;
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/*
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uint32_t weight;
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uint32_t area;
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ft6x06_TS_GetTouchInfo(DeviceAddr, ft6x06_handle.currActiveTouchIdx, &weight, &area, event);
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*/
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tc_handle.currActiveTouchIdx++;
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}
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}
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static void touch_cst340_debug_info(void)
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{
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#if 0 // Disabled because cannot compile, will fix when necessary
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#if defined(DEBUG)
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uint8_t tmp[4];
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if (!TS_IO_Write(CST340_MODE_DEBUG_INFO, tmp, 0))
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TRACE("CST340 chip NOT FOUND");
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// Check the value, expected ChipID
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uint32_t chipId = tmp[0] << 8) + tmp[1];
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if (!I2C_CST340_ReadRegister(CST340_FWVER_REG, tmp, 4))
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TRACE("Error reading CST340 firmware version!");
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uint32_t fwVersion = tmp[0] << 24 | tmp[1]<<16 | tmp[2]<<8 | tmp[0];
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// Enter normal mode
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if (!I2C_CST340_WriteRegister(CST340_MODE_NORMAL, tmp, 0))
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TRACE("ERROR chaning CST340 mode back to normal!");
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TRACE("cst340: fw ver 0x%08X", fwVersion);
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TRACE("cst836u: chip id 0x%04X", chipId);
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#endif
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#endif
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}
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/**
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* @brief Get the touch screen X and Y positions values
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* @param DeviceAddr: Device address on communication Bus.
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* @param X: Pointer to X position value
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* @param Y: Pointer to Y position value
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* @retval None.
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*/
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static void cst340_TS_GetXY(uint16_t * X, uint16_t * Y, uint32_t * event)
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{
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uint8_t dataxy[4];
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/* Read X and Y positions */
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TS_IO_ReadMultiple(TOUCH_CST340_I2C_ADDRESS, CST340_FINGER1_REG, dataxy, sizeof(dataxy));
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/* Send back ready X position to caller */
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*X = ((dataxy[1]<<4) + ((dataxy[3]>>4)&0x0f));
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*Y = ((dataxy[2]<<4) + ((dataxy[3])&0x0f));
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/* Send back ready Y position to caller */
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*event = dataxy[0];
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}
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/**
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* @brief Return if there is touches detected or not.
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* Try to detect new touches and forget the old ones (reset internal global
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* variables).
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* @param DeviceAddr: Device address on communication Bus.
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* @retval : Number of active touches detected
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*/
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static uint8_t cst340_TS_DetectTouch()
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{
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uint8_t nbTouch;
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uint8_t reg = TS_IO_Read(TOUCH_CST340_I2C_ADDRESS, CST340_FINGER1_REG);
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if( reg == 0x06 )
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nbTouch = 1;
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else
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nbTouch = 0;
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tc_handle.currActiveTouchNb = nbTouch;
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tc_handle.currActiveTouchIdx = 0;
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return (nbTouch);
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}
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void TouchReset()
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{
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LL_GPIO_ResetOutputPin(TOUCH_RST_GPIO, TOUCH_RST_GPIO_PIN);
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delay_ms(10);
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LL_GPIO_SetOutputPin(TOUCH_RST_GPIO, TOUCH_RST_GPIO_PIN);
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delay_ms(300);
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}
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static const TouchControllerDescriptor FT6236 =
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{
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.read = ft6x06_TS_GetXY,
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.detectTouch = ft6x06_TS_DetectTouch,
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.printDebugInfo = touch_ft6236_debug_info,
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.contactEvent = FT6206_TOUCH_EVT_FLAG_CONTACT
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};
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static const TouchControllerDescriptor CST340 =
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{
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.read = cst340_TS_GetXY,
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.detectTouch = cst340_TS_DetectTouch,
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.printDebugInfo = touch_cst340_debug_info,
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.contactEvent = CST340_TOUCH_EVT_FLAG_CONTACT
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};
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void detectTouchController()
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{
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if( stm32_i2c_is_dev_ready(TOUCH_I2C_BUS, TOUCH_CST340_I2C_ADDRESS, 3, 5) == 0)
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{
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TouchControllerType = 0;
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touchController = TC_CST340;
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tc = &CST340;
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} else {
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TouchControllerType = 1;
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touchController = TC_FT6236;
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tc = &FT6236;
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}
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}
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void TouchInit()
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{
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TOUCH_AF_GPIOConfig(); // SET RST=OUT INT=IN INT=HIGH
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I2C_Init_Radio();
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TouchReset();
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detectTouchController();
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TOUCH_AF_ExtiConfig();
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tc->printDebugInfo();
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}
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void handleTouch()
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{
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unsigned short touchX;
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unsigned short touchY;
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uint32_t tEvent = 0;
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tc->read(&touchX, &touchY, &tEvent);
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#if defined(DEBUG)
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TRACE("handleTouch: touchX=%d, touchY=%d, tEvent=%d", touchX, touchY, tEvent);
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#endif
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// touch sensor is rotated by 90 deg
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unsigned short tmp = touchY;
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touchY = 319 - touchX;
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touchX = tmp;
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if (tEvent == tc->contactEvent) {
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int dx = touchX - internalTouchState.x;
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int dy = touchY - internalTouchState.y;
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internalTouchState.x = touchX;
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internalTouchState.y = touchY;
|
|
|
|
if (internalTouchState.event == TE_NONE || internalTouchState.event == TE_UP || internalTouchState.event == TE_SLIDE_END) {
|
|
internalTouchState.startX = internalTouchState.x;
|
|
internalTouchState.startY = internalTouchState.y;
|
|
internalTouchState.event = TE_DOWN;
|
|
}
|
|
else if (internalTouchState.event == TE_DOWN) {
|
|
if (dx >= SLIDE_RANGE || dx <= -SLIDE_RANGE || dy >= SLIDE_RANGE || dy <= -SLIDE_RANGE) {
|
|
internalTouchState.event = TE_SLIDE;
|
|
internalTouchState.deltaX = (short) dx;
|
|
internalTouchState.deltaY = (short) dy;
|
|
}
|
|
else {
|
|
internalTouchState.event = TE_DOWN;
|
|
internalTouchState.deltaX = 0;
|
|
internalTouchState.deltaY = 0;
|
|
}
|
|
}
|
|
else if (internalTouchState.event == TE_SLIDE) {
|
|
internalTouchState.event = TE_SLIDE; //no change
|
|
internalTouchState.deltaX = (short) dx;
|
|
internalTouchState.deltaY = (short) dy;
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
static bool lastHasTouch = false;
|
|
bool touchPanelEventOccured()
|
|
{
|
|
bool result = touchEventOccured;
|
|
uint8_t hasTouch = false;
|
|
if (touchEventOccured) {
|
|
hasTouch = tc->detectTouch();
|
|
if (!hasTouch && !lastHasTouch) {
|
|
touchEventOccured = false;
|
|
result = false;
|
|
}
|
|
lastHasTouch = hasTouch;
|
|
}
|
|
|
|
#if defined(DEBUG)
|
|
TRACE("TouchEvent: %d, %d, %d, %d", touchEventOccured, lastHasTouch, hasTouch, result);
|
|
#endif
|
|
return result;
|
|
}
|
|
|
|
TouchState touchPanelRead()
|
|
{
|
|
if (!touchEventOccured) return internalTouchState;
|
|
|
|
touchEventOccured = false;
|
|
|
|
tmr10ms_t now = get_tmr10ms();
|
|
internalTouchState.tapCount = 0;
|
|
|
|
if (tc->detectTouch()) {
|
|
handleTouch();
|
|
if (internalTouchState.event == TE_DOWN && downTime == 0) {
|
|
downTime = now;
|
|
}
|
|
} else {
|
|
if (internalTouchState.event == TE_DOWN) {
|
|
internalTouchState.event = TE_UP;
|
|
if (now - downTime <= TAP_TIME) {
|
|
if (now - tapTime > TAP_TIME) {
|
|
tapCount = 1;
|
|
} else {
|
|
tapCount++;
|
|
}
|
|
internalTouchState.tapCount = tapCount;
|
|
tapTime = now;
|
|
} else {
|
|
internalTouchState.tapCount = 0; // not a tap
|
|
}
|
|
downTime = 0;
|
|
} else {
|
|
tapCount = 0;
|
|
internalTouchState.tapCount = 0;
|
|
internalTouchState.event = TE_SLIDE_END;
|
|
}
|
|
}
|
|
TouchState ret = internalTouchState;
|
|
internalTouchState.deltaX = 0;
|
|
internalTouchState.deltaY = 0;
|
|
if(internalTouchState.event == TE_UP || internalTouchState.event == TE_SLIDE_END)
|
|
internalTouchState.event = TE_NONE;
|
|
|
|
#if defined(DEBUG)
|
|
TRACE("%s: Event = %d", touchController == TC_CST340 ? "CST340" : "FT6236", ret.event);
|
|
#endif
|
|
|
|
return ret;
|
|
}
|
|
|
|
TouchState getInternalTouchState()
|
|
{
|
|
return internalTouchState;
|
|
}
|