[fix][examples] improve some cases process

examples/pm/hbn_mode_wakeup/CMakeLists.txt

@@ -0,0 +1,4 @@
+set(TARGET_REQUIRED_LIBS shell)
+set(mains main.c)
+generate_bin()
+

examples/pm/pds_mode_wakeup/CMakeLists.txt

@@ -0,0 +1,4 @@
+set(TARGET_REQUIRED_LIBS shell)
+set(mains main.c)
+generate_bin()
+

examples/pm/pds_mode_wakeup/main.c

@@ -0,0 +1,77 @@
+/**
+ * @file main.c
+ * @brief
+ *
+ * Copyright (c) 2021 Bouffalolab team
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+#include "hal_uart.h"
+#include "hal_pm.h"
+#include "hal_gpio.h"
+#include "shell.h"
+
+void shell_irq_callback(struct device *dev, void *args, uint32_t size, uint32_t state)
+{
+    uint8_t data;
+    if (state == UART_EVENT_RX_FIFO) {
+        data = *(uint8_t *)args;
+        shell_handler(data);
+    }
+}
+
+static void gpio_int_callback(uint32_t pin)
+{
+    MSG("gpio :%d rising trigger !\r\n", pin);
+}
+
+int main(void)
+{
+    bflb_platform_init(0);
+    shell_init();
+    struct device *uart = device_find("debug_log");
+    if (uart) {
+        device_set_callback(uart, shell_irq_callback);
+        device_control(uart, DEVICE_CTRL_SET_INT, (void *)(UART_RX_FIFO_IT));
+    }
+    gpio_attach_irq(GPIO_PIN_10, gpio_int_callback);
+    gpio_irq_enable(GPIO_PIN_10, ENABLE); //only used for level3
+    while (1) {
+        bflb_platform_delay_ms(100);
+    }
+}
+
+int pds3_enter(int argc, char *argv[])
+{
+    MSG("gpio wake up case,enter pds3 mode\r\n");
+    bflb_platform_delay_ms(50);
+
+    pm_pds_mode_enter(PM_PDS_LEVEL_3, 0); /*hbn、pds、exti gpio can wakeup*/
+    BL_CASE_SUCCESS;                      /*level 3 can run here*/
+    return 0;
+}
+int pds31_enter(int argc, char *argv[])
+{
+    MSG("gpio wake up case,enter pds31 mode\r\n");
+    bflb_platform_delay_ms(50);
+
+    pm_pds_mode_enter(PM_PDS_LEVEL_31, 0); /*hbn、pds gpio can wakeup*/
+
+    return 0;
+}
+SHELL_CMD_EXPORT(pds3_enter, pds3 gpio wakeup test)
+SHELL_CMD_EXPORT(pds31_enter, pds31 gpio wakeup test)