275 lines
7.0 KiB
C
275 lines
7.0 KiB
C
/*
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* Copyright (c) 2006-2022, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2012-09-20 Bernard Change the name to components.c
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* And all components related header files.
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* 2012-12-23 Bernard fix the pthread initialization issue.
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* 2013-06-23 Bernard Add the init_call for components initialization.
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* 2013-07-05 Bernard Remove initialization feature for MS VC++ compiler
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* 2015-02-06 Bernard Remove the MS VC++ support and move to the kernel
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* 2015-05-04 Bernard Rename it to components.c because compiling issue
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* in some IDEs.
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* 2015-07-29 Arda.Fu Add support to use RT_USING_USER_MAIN with IAR
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* 2018-11-22 Jesven Add secondary cpu boot up
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*/
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#include <rthw.h>
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#include <rtthread.h>
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#ifdef RT_USING_USER_MAIN
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#ifndef RT_MAIN_THREAD_STACK_SIZE
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#define RT_MAIN_THREAD_STACK_SIZE 2048
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#endif /* RT_MAIN_THREAD_STACK_SIZE */
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#ifndef RT_MAIN_THREAD_PRIORITY
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#define RT_MAIN_THREAD_PRIORITY (RT_THREAD_PRIORITY_MAX / 3)
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#endif /* RT_MAIN_THREAD_PRIORITY */
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#endif /* RT_USING_USER_MAIN */
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#ifdef RT_USING_COMPONENTS_INIT
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/*
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* Components Initialization will initialize some driver and components as following
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* order:
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* rti_start --> 0
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* BOARD_EXPORT --> 1
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* rti_board_end --> 1.end
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*
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* DEVICE_EXPORT --> 2
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* COMPONENT_EXPORT --> 3
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* FS_EXPORT --> 4
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* ENV_EXPORT --> 5
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* APP_EXPORT --> 6
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*
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* rti_end --> 6.end
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*
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* These automatically initialization, the driver or component initial function must
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* be defined with:
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* INIT_BOARD_EXPORT(fn);
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* INIT_DEVICE_EXPORT(fn);
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* ...
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* INIT_APP_EXPORT(fn);
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* etc.
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*/
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static int rti_start(void)
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{
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return 0;
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}
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INIT_EXPORT(rti_start, "0");
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static int rti_board_start(void)
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{
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return 0;
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}
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INIT_EXPORT(rti_board_start, "0.end");
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static int rti_board_end(void)
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{
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return 0;
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}
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INIT_EXPORT(rti_board_end, "1.end");
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static int rti_end(void)
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{
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return 0;
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}
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INIT_EXPORT(rti_end, "6.end");
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/**
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* @brief Onboard components initialization. In this function, the board-level
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* initialization function will be called to complete the initialization
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* of the on-board peripherals.
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*/
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void rt_components_board_init(void)
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{
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#if RT_DEBUG_INIT
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int result;
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const struct rt_init_desc *desc;
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for (desc = &__rt_init_desc_rti_board_start; desc < &__rt_init_desc_rti_board_end; desc ++)
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{
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rt_kprintf("initialize %s", desc->fn_name);
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result = desc->fn();
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rt_kprintf(":%d done\n", result);
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}
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#else
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volatile const init_fn_t *fn_ptr;
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for (fn_ptr = &__rt_init_rti_board_start; fn_ptr < &__rt_init_rti_board_end; fn_ptr++)
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{
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(*fn_ptr)();
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}
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#endif /* RT_DEBUG_INIT */
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}
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/**
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* @brief RT-Thread Components Initialization.
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*/
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void rt_components_init(void)
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{
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#if RT_DEBUG_INIT
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int result;
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const struct rt_init_desc *desc;
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rt_kprintf("do components initialization.\n");
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for (desc = &__rt_init_desc_rti_board_end; desc < &__rt_init_desc_rti_end; desc ++)
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{
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rt_kprintf("initialize %s", desc->fn_name);
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result = desc->fn();
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rt_kprintf(":%d done\n", result);
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}
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#else
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volatile const init_fn_t *fn_ptr;
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for (fn_ptr = &__rt_init_rti_board_end; fn_ptr < &__rt_init_rti_end; fn_ptr ++)
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{
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(*fn_ptr)();
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}
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#endif /* RT_DEBUG_INIT */
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}
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#endif /* RT_USING_COMPONENTS_INIT */
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#ifdef RT_USING_USER_MAIN
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void rt_application_init(void);
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void rt_hw_board_init(void);
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int rtthread_startup(void);
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#ifdef __ARMCC_VERSION
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extern int $Super$$main(void);
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/* re-define main function */
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int $Sub$$main(void)
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{
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rtthread_startup();
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return 0;
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}
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#elif defined(__ICCARM__)
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/* __low_level_init will auto called by IAR cstartup */
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extern void __iar_data_init3(void);
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int __low_level_init(void)
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{
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// call IAR table copy function.
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__iar_data_init3();
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rtthread_startup();
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return 0;
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}
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#elif defined(__GNUC__)
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/* Add -eentry to arm-none-eabi-gcc argument */
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int entry(void)
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{
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rtthread_startup();
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return 0;
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}
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#endif
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#ifndef RT_USING_HEAP
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/* if there is not enable heap, we should use static thread and stack. */
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rt_align(RT_ALIGN_SIZE)
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static rt_uint8_t main_thread_stack[RT_MAIN_THREAD_STACK_SIZE];
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struct rt_thread main_thread;
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#endif /* RT_USING_HEAP */
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/**
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* @brief The system main thread. In this thread will call the rt_components_init()
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* for initialization of RT-Thread Components and call the user's programming
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* entry main().
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*/
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void main_thread_entry(void *parameter)
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{
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extern int main(void);
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#ifdef RT_USING_COMPONENTS_INIT
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/* RT-Thread components initialization */
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rt_components_init();
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#endif /* RT_USING_COMPONENTS_INIT */
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#ifdef RT_USING_SMP
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rt_hw_secondary_cpu_up();
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#endif /* RT_USING_SMP */
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/* invoke system main function */
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#ifdef __ARMCC_VERSION
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{
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extern int $Super$$main(void);
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$Super$$main(); /* for ARMCC. */
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}
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#elif defined(__ICCARM__) || defined(__GNUC__) || defined(__TASKING__) || defined(__TI_COMPILER_VERSION__)
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main();
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#endif
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}
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/**
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* @brief This function will create and start the main thread, but this thread
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* will not run until the scheduler starts.
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*/
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void rt_application_init(void)
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{
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rt_thread_t tid;
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#ifdef RT_USING_HEAP
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tid = rt_thread_create("main", main_thread_entry, RT_NULL,
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RT_MAIN_THREAD_STACK_SIZE, RT_MAIN_THREAD_PRIORITY, 20);
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RT_ASSERT(tid != RT_NULL);
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#else
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rt_err_t result;
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tid = &main_thread;
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result = rt_thread_init(tid, "main", main_thread_entry, RT_NULL,
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main_thread_stack, sizeof(main_thread_stack), RT_MAIN_THREAD_PRIORITY, 20);
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RT_ASSERT(result == RT_EOK);
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/* if not define RT_USING_HEAP, using to eliminate the warning */
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(void)result;
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#endif /* RT_USING_HEAP */
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rt_thread_startup(tid);
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}
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/**
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* @brief This function will call all levels of initialization functions to complete
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* the initialization of the system, and finally start the scheduler.
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*/
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int rtthread_startup(void)
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{
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rt_hw_interrupt_disable();
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/* board level initialization
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* NOTE: please initialize heap inside board initialization.
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*/
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rt_hw_board_init();
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/* show RT-Thread version */
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rt_show_version();
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/* timer system initialization */
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rt_system_timer_init();
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/* scheduler system initialization */
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rt_system_scheduler_init();
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#ifdef RT_USING_SIGNALS
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/* signal system initialization */
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rt_system_signal_init();
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#endif /* RT_USING_SIGNALS */
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/* create init_thread */
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rt_application_init();
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/* timer thread initialization */
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rt_system_timer_thread_init();
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/* idle thread initialization */
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rt_thread_idle_init();
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#ifdef RT_USING_SMP
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rt_hw_spin_lock(&_cpus_lock);
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#endif /* RT_USING_SMP */
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/* start scheduler */
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rt_system_scheduler_start();
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/* never reach here */
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return 0;
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}
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#endif /* RT_USING_USER_MAIN */
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