V1.0.6

bsp/examples/test-gpio/test_gpio_key.c

@@ -0,0 +1,141 @@
+/*
+ * Copyright (c) 2022-2024, ArtInChip Technology Co., Ltd
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Authors: Li Siyao <siyao.li@artinchip.com>
+ */
+#include <stdlib.h>
+#include <string.h>
+#include <getopt.h>
+#include <sys/time.h>
+#include <rtthread.h>
+#include "rtdevice.h"
+#include "aic_core.h"
+#include "aic_hal_gpio.h"
+#include "aic_time.h"
+
+#define TEST_GPIO_KEY_PIN               "PA.2"
+
+static int g_end_time = 0;
+static int g_start_time = 0;
+static int g_long_press_time = 3000;
+static unsigned int g_init_pin_status;
+
+static const char sopts[] = "i:t:h";
+static const struct option lopts[] = {
+    {"input",       optional_argument,  NULL, 'i'},
+    {"time",        optional_argument,  NULL, 't'},
+    {"help",        no_argument,        NULL, 'h'},
+    {0, 0, 0, 0}
+};
+
+static void test_gpio_key_usage(char *program)
+{
+    printf("Compile time: %s %s\n", __DATE__, __TIME__);
+    printf("Usage: %s [options]\n", program);
+    printf("\t -i, --input\t\tConfigure PIN as key-input-pin.Default as PA.2\n");
+    printf("\t -t  --time\t\tSet long press time, unit ms.\n");
+    printf("\t -h, --help \n");
+    printf("\n");
+    printf("Example:\n");
+    printf("\t%s -t 200 -i PA.2\n", program);
+}
+
+static void test_gpio_key_input_irq_handler(void *args)
+{
+    unsigned int val;
+    u32 pin = *((u32 *)(args));
+
+    // Obtain the pin level status when the interrupt is triggered.
+    hal_gpio_get_value(GPIO_GROUP(pin), GPIO_GROUP_PIN(pin), &val);
+
+    if (val == g_init_pin_status) {
+        g_end_time = aic_get_time_ms();
+        if ((g_end_time - g_start_time) > g_long_press_time) {
+            rt_kprintf("Long press\n");
+        } else {
+            rt_kprintf("Short press\n");
+        }
+    } else {
+        g_start_time = aic_get_time_ms();
+    }
+}
+
+/**
+ * @brief This function will check if the pins are set correctly, if set incorrectly, use the default pin settings.
+ */
+
+static u32 test_gpio_key_pin_check(char *arg_pin)
+{
+    u32 pin;
+
+    if (arg_pin == RT_NULL || strlen(arg_pin) == 0) {
+        rt_kprintf("pin set default PA.2\n");
+        pin = rt_pin_get(TEST_GPIO_KEY_PIN);
+    } else {
+        rt_kprintf("pin set          : [%s]\n", arg_pin);
+        pin = rt_pin_get(arg_pin);
+    }
+
+    return pin;
+}
+
+static u32 test_gpio_key_input_pin_cfg(char *arg_pin)
+{
+    // 1.get pin number
+    static u32 pin = 0;
+    pin = test_gpio_key_pin_check(arg_pin);
+
+    // 2.set pin mode to Input-PullUp
+    rt_pin_mode(pin, PIN_MODE_INPUT_PULLUP);
+
+    // 3. Obtain the initial state of the pin level when button is not pressed.
+    hal_gpio_get_value(GPIO_GROUP(pin), GPIO_GROUP_PIN(pin),
+                       &g_init_pin_status);
+    rt_kprintf("Current pin status: %d\n", g_init_pin_status);
+
+    // 4.attach irq handler
+    rt_pin_attach_irq(pin, PIN_IRQ_MODE_RISING_FALLING,
+                      test_gpio_key_input_irq_handler, &pin);
+
+    // 5.enable pin irq
+    rt_pin_irq_enable(pin, PIN_IRQ_ENABLE);
+
+    return pin;
+}
+
+
+int test_gpio_key(int argc, char **argv)
+{
+    int c = 0;
+
+    if (argc < 2) {
+        test_gpio_key_usage(argv[0]);
+        return -1;
+    }
+
+    optind = 0;
+    while ((c = getopt_long(argc, argv, sopts, lopts, NULL)) != -1) {
+        switch (c) {
+        case 'i':
+            test_gpio_key_input_pin_cfg(optarg);
+            break;
+        case 't':
+            g_long_press_time = atoi(optarg);
+            if (g_long_press_time <= 0) {
+                test_gpio_key_usage(argv[0]);
+                return 0;
+            }
+            break;
+        case 'h':
+        default:
+            test_gpio_key_usage(argv[0]);
+            return 0;
+        }
+    }
+
+    return 0;
+}
+
+MSH_CMD_EXPORT(test_gpio_key, gpio key device sample);