tests/driver_ft5x06: add test application for touch panel

tests/driver_ft5x06/Makefile

@@ -0,0 +1,7 @@
+BOARD ?= stm32f746g-disco
+include ../Makefile.tests_common
+
+DRIVER ?= ft5336
+USEMODULE += $(DRIVER)
+
+include $(RIOTBASE)/Makefile.include

tests/driver_ft5x06/Makefile.ci

@@ -0,0 +1,3 @@
+BOARD_INSUFFICIENT_MEMORY := \
+    nucleo-l011k4 \
+    #

tests/driver_ft5x06/app.config.test

@@ -0,0 +1,3 @@
+# this file enables modules defined in Kconfig. Do not use this file for
+# application configuration. This is only needed during migration.
+CONFIG_MODULE_FT5336=y

tests/driver_ft5x06/main.c

@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2021 Inria
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @ingroup     tests
+ * @{
+ *
+ * @file
+ * @brief       Test application for the ft5x06 touch driver
+ *
+ * @author      Alexandre Abadie <alexandre.abadie@inria.fr>
+ *
+ * @}
+ */
+
+#include <stdio.h>
+
+#include "mutex.h"
+
+#include "ft5x06.h"
+#include "ft5x06_params.h"
+
+static void _touch_event_cb(void *arg)
+{
+    mutex_unlock(arg);
+}
+
+static ft5x06_touch_position_t positions[FT5X06_TOUCHES_COUNT_MAX];
+
+int main(void)
+{
+    mutex_t lock = MUTEX_INIT_LOCKED;
+    ft5x06_t dev;
+
+    puts("FT5x06 test application\n");
+
+    printf("+------------Initializing------------+\n");
+    int ret = ft5x06_init(&dev, &ft5x06_params[0], _touch_event_cb, &lock);
+    if (ret != 0) {
+        puts("[Error] Initialization failed");
+        return 1;
+    }
+
+    puts("Initialization successful");
+
+    uint8_t current_touch_count = 0;
+    ft5x06_read_touch_count(&dev, &current_touch_count);
+    uint8_t last_touch_count = current_touch_count;
+
+    while (1) {
+
+        /* wait for touch event */
+        mutex_lock(&lock);
+
+        ft5x06_read_touch_count(&dev, &current_touch_count);
+
+        if (current_touch_count != last_touch_count) {
+            if (current_touch_count) {
+                printf("%d touch detected\n", current_touch_count);
+            }
+            if (!current_touch_count) {
+                puts("Released!");
+            }
+            last_touch_count = current_touch_count;
+        }
+
+        ft5x06_touch_gesture_t gesture;
+        ft5x06_read_touch_gesture(&dev, &gesture);
+        if (gesture != FT5X06_TOUCH_NO_GESTURE) {
+            printf("Gesture detected: %d\n", gesture);
+        }
+
+        /* Display touch positions if there are some */
+        if (current_touch_count > 0) {
+            ft5x06_read_touch_positions(&dev, positions, current_touch_count);
+            for (uint8_t touch = 0; touch < current_touch_count; touch++) {
+                printf("Touch %d - X: %i, Y:%i\n",
+                        touch + 1, positions[touch].x, positions[touch].y);
+            }
+        }
+    }
+
+    return 0;
+}