| /** |
| * 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 <assert.h> |
| #include <string.h> |
| |
| #include "sysinit/sysinit.h" |
| #include "os/os.h" |
| #include "bsp/bsp.h" |
| #include "hal/hal_gpio.h" |
| #ifdef ARCH_sim |
| #include "mcu/mcu_sim.h" |
| #endif |
| |
| /* Init all tasks */ |
| volatile int tasks_initialized; |
| int init_tasks(void); |
| |
| /* Task 1 */ |
| #define BLINKY_TASK_PRIO (1) |
| #define BLINKY_STACK_SIZE OS_STACK_ALIGN(256) |
| |
| struct os_task blinky_task; |
| os_stack_t blinky_stack[BLINKY_STACK_SIZE]; |
| static volatile int g_task1_loops; |
| |
| /* For LED toggling */ |
| int g_led_pin; |
| |
| void |
| blinky_task_handler(void *arg) |
| { |
| struct os_task *t; |
| |
| g_led_pin = LED_BLINK_PIN; |
| hal_gpio_init_out(g_led_pin, 1); |
| |
| while (1) { |
| t = os_sched_get_current_task(); |
| assert(t->t_func == blinky_task_handler); |
| |
| ++g_task1_loops; |
| |
| /* Wait one second */ |
| os_time_delay(OS_TICKS_PER_SEC); |
| |
| /* Toggle the LED */ |
| hal_gpio_toggle(g_led_pin); |
| } |
| } |
| |
| /** |
| * init_tasks |
| * |
| * Called by main.c after os_init(). This function performs initializations |
| * that are required before tasks are running. |
| * |
| * @return int 0 success; error otherwise. |
| */ |
| int |
| init_tasks(void) |
| { |
| os_task_init(&blinky_task, "blinky", blinky_task_handler, NULL, |
| BLINKY_TASK_PRIO, OS_WAIT_FOREVER, blinky_stack, BLINKY_STACK_SIZE); |
| |
| tasks_initialized = 1; |
| |
| return 0; |
| } |
| |
| /** |
| * main |
| * |
| * The main function for the project. This function initializes the os, calls |
| * init_tasks to initialize tasks (and possibly other objects), then starts the |
| * OS. We should not return from os start. |
| * |
| * @return int NOTE: this function should never return! |
| */ |
| int |
| main(int argc, char **argv) |
| { |
| int rc; |
| |
| #ifdef ARCH_sim |
| mcu_sim_parse_args(argc, argv); |
| #endif |
| |
| sysinit(); |
| |
| rc = init_tasks(); |
| os_start(); |
| |
| /* os start should never return. If it does, this should be an error */ |
| assert(0); |
| |
| return rc; |
| } |
| |