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CST816 touch driver add

src/drv/touch/touch_driver.h

@@ -93,6 +93,9 @@ class BaseTouch {
 #elif TOUCH_DRIVER == 0x3240
 #warning Building for CST3240
 #include "touch_driver_cst3240.h"
+#elif TOUCH_DRIVER == 0x816
+#warning Building for CST816S
+#include "touch_driver_cst816.h"
 #else
 #warning Building for Generic Touch
 using dev::BaseTouch;

src/drv/touch/touch_driver_cst816.cpp

@@ -0,0 +1,70 @@
+/* MIT License - Copyright (c) 2019-2024 Francis Van Roie
+   For full license information read the LICENSE file in the project folder */
+
+#if defined(ARDUINO) && (TOUCH_DRIVER == 0x816)
+#include <Arduino.h>
+#include "ArduinoLog.h"
+#include "hasp_conf.h"
+#include "touch_driver_cst816.h"
+
+#include <Wire.h>
+#include "cst816t.h"
+
+#include "touch_driver.h" // base class
+#include "touch_helper.h" // i2c scanner
+
+#include "../../hasp/hasp.h" // for hasp_sleep_state
+extern uint8_t hasp_sleep_state;
+
+cst816t touchpad(Wire, TOUCH_RST, TOUCH_IRQ);
+
+namespace dev {
+
+IRAM_ATTR bool TouchCst816::read(lv_indev_drv_t* indev_driver, lv_indev_data_t* data)
+{
+    if(touchpad.available()) {
+
+        if(hasp_sleep_state != HASP_SLEEP_OFF) hasp_update_sleep_state(); // update Idle
+        //LOG_INFO(TAG_DRVR, "CST816 touched x:%d, y:%d", touchpad.x, touchpad.y);
+
+#ifdef TOUCH_WIDTH
+        data->point.x = map(x, 0, TOUCH_WIDTH - 1, 0, TFT_WIDTH - 1);
+#else
+        data->point.x = touchpad.x;
+#endif
+
+#ifdef TOUCH_HEIGHT
+        data->point.y = map(y, 0, TOUCH_HEIGHT - 1, 0, TFT_HEIGHT - 1);
+#else
+        data->point.y = touchpad.y;
+#endif
+
+        data->state = LV_INDEV_STATE_PR;
+        hasp_set_sleep_offset(0); // Reset the offset
+
+    } else {
+        data->state = LV_INDEV_STATE_REL;
+    }
+
+    /*Return `false` because we are not buffering and no more data to read*/
+    return false;
+}
+
+void TouchCst816::init(int w, int h)
+{
+    Wire.begin(TOUCH_SDA, TOUCH_SCL, (uint32_t)I2C_TOUCH_FREQUENCY);
+    if(touchpad.begin(mode_touch) == true) {
+        LOG_INFO(TAG_DRVR, "CST816 %s (170X320)", D_SERVICE_STARTED);
+    } else {
+        LOG_WARNING(TAG_DRVR, "CST816 %s", D_SERVICE_START_FAILED);
+    }
+
+    Wire.begin(TOUCH_SDA, TOUCH_SCL, (uint32_t)I2C_TOUCH_FREQUENCY);
+    touch_scan(Wire); // The address could change during begin, so scan afterwards
+}
+
+} // namespace dev
+
+dev::TouchCst816 haspTouch;
+
+#endif // ARDUINO

src/drv/touch/touch_driver_cst816.h

@@ -0,0 +1,27 @@
+/* MIT License - Copyright (c) 2019-2024 Francis Van Roie
+   For full license information read the LICENSE file in the project folder */
+
+#ifndef HASP_CST816_TOUCH_DRIVER_H
+#define HASP_CST816_TOUCH_DRIVER_H
+
+#ifdef ARDUINO
+#include "lvgl.h"
+#include "touch_driver.h"
+
+namespace dev {
+
+class TouchCst816 : public BaseTouch {
+  public:
+    IRAM_ATTR bool read(lv_indev_drv_t* indev_driver, lv_indev_data_t* data);
+    void init(int w, int h);
+};
+
+} // namespace dev
+
+using dev::TouchCst816;
+extern dev::TouchCst816 haspTouch;
+
+#endif // ARDUINO
+
+#endif // HASP_CST816_TOUCH_DRIVER_H
+