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rt-thread
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b2c64b79
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b2c64b79
编写于
9月 14, 2021
作者:
B
Bernard Xiong
提交者:
GitHub
9月 14, 2021
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差异文件
Merge pull request #5039 from Guozhanxin/kernel_comment
Improve the Kernel comment
上级
f76a192f
6cb093aa
变更
3
显示空白变更内容
内联
并排
Showing
3 changed file
with
85 addition
and
19 deletion
+85
-19
src/clock.c
src/clock.c
+19
-13
src/components.c
src/components.c
+17
-3
src/cpu.c
src/cpu.c
+49
-3
未找到文件。
src/clock.c
浏览文件 @
b2c64b79
...
...
@@ -33,9 +33,9 @@ static volatile rt_tick_t rt_tick = 0;
/**@{*/
/**
* This function will return current tick from operating system startup
*
@brief
This function will return current tick from operating system startup
*
* @return current tick
* @return
Return
current tick
*/
rt_tick_t
rt_tick_get
(
void
)
{
...
...
@@ -45,7 +45,9 @@ rt_tick_t rt_tick_get(void)
RTM_EXPORT
(
rt_tick_get
);
/**
* This function will set current tick
* @brief This function will set current tick
*
* @param tick is the value that you will set.
*/
void
rt_tick_set
(
rt_tick_t
tick
)
{
...
...
@@ -57,8 +59,8 @@ void rt_tick_set(rt_tick_t tick)
}
/**
*
This function will notify kernel there is one tick passed. Normally,
* this function is invoked by clock ISR.
*
@brief This function will notify kernel there is one tick passed.
*
Normally,
this function is invoked by clock ISR.
*/
void
rt_tick_increase
(
void
)
{
...
...
@@ -97,14 +99,14 @@ void rt_tick_increase(void)
}
/**
* This function will calculate the tick from millisecond.
*
@brief
This function will calculate the tick from millisecond.
*
* @param
m
s the specified millisecond
* @param
ms i
s the specified millisecond
* - Negative Number wait forever
* - Zero not wait
* - Max 0x7fffffff
*
* @return the calculated tick
* @return
Return
the calculated tick
*/
rt_tick_t
rt_tick_from_millisecond
(
rt_int32_t
ms
)
{
...
...
@@ -126,9 +128,13 @@ rt_tick_t rt_tick_from_millisecond(rt_int32_t ms)
RTM_EXPORT
(
rt_tick_from_millisecond
);
/**
* This function will provide the passed millisecond from boot.
* @brief This function will return the passed millisecond from boot.
*
* @note if the value of RT_TICK_PER_SECOND is lower than 1000 or
* is not an integral multiple of 1000, this function will not
* provide the correct 1ms-based tick.
*
* @return passed millisecond from boot
* @return
Return
passed millisecond from boot
*/
RT_WEAK
rt_tick_t
rt_tick_get_millisecond
(
void
)
{
...
...
src/components.c
浏览文件 @
b2c64b79
...
...
@@ -78,7 +78,9 @@ static int rti_end(void)
INIT_EXPORT
(
rti_end
,
"6.end"
);
/**
* RT-Thread Components Initialization for board
* @brief Onboard components initialization. In this function, the board-level
* initialization function will be called to complete the initialization
* of the on-board peripherals.
*/
void
rt_components_board_init
(
void
)
{
...
...
@@ -102,7 +104,7 @@ void rt_components_board_init(void)
}
/**
*
RT-Thread Components Initialization
*
@brief RT-Thread Components Initialization.
*/
void
rt_components_init
(
void
)
{
...
...
@@ -169,7 +171,11 @@ static rt_uint8_t main_stack[RT_MAIN_THREAD_STACK_SIZE];
struct
rt_thread
main_thread
;
#endif
/* RT_USING_HEAP */
/* the system main thread */
/**
* @brief The system main thread. In this thread will call the rt_components_init()
* for initialization of RT-Thread Components and call the user's programming
* entry main().
*/
void
main_thread_entry
(
void
*
parameter
)
{
extern
int
main
(
void
);
...
...
@@ -193,6 +199,10 @@ void main_thread_entry(void *parameter)
#endif
}
/**
* @brief This function will create and start the main thread, but this thread
* will not run until the scheduler starts.
*/
void
rt_application_init
(
void
)
{
rt_thread_t
tid
;
...
...
@@ -216,6 +226,10 @@ void rt_application_init(void)
rt_thread_startup
(
tid
);
}
/**
* @brief This function will call all levels of initialization functions to complete
* the initialization of the system, and finally start the scheduler.
*/
int
rtthread_startup
(
void
)
{
rt_hw_interrupt_disable
();
...
...
src/cpu.c
浏览文件 @
b2c64b79
...
...
@@ -65,12 +65,25 @@ static void _cpu_preempt_enable(void)
rt_hw_local_irq_enable
(
level
);
}
/**
* @brief Initialize a static spinlock object.
*
* @param lock is a pointer to the spinlock to initialize.
*/
void
rt_spin_lock_init
(
struct
rt_spinlock
*
lock
)
{
rt_hw_spin_lock_init
(
&
lock
->
lock
);
}
RTM_EXPORT
(
rt_spin_lock_init
)
/**
* @brief This function will lock the spinlock.
*
* @note If the spinlock is locked, the current CPU will keep polling the spinlock state
* until the spinlock is unlocked.
*
* @param lock is a pointer to the spinlock.
*/
void
rt_spin_lock
(
struct
rt_spinlock
*
lock
)
{
_cpu_preempt_disable
();
...
...
@@ -78,6 +91,11 @@ void rt_spin_lock(struct rt_spinlock *lock)
}
RTM_EXPORT
(
rt_spin_lock
)
/**
* @brief This function will unlock the spinlock.
*
* @param lock is a pointer to the spinlock.
*/
void
rt_spin_unlock
(
struct
rt_spinlock
*
lock
)
{
rt_hw_spin_unlock
(
&
lock
->
lock
);
...
...
@@ -85,6 +103,16 @@ void rt_spin_unlock(struct rt_spinlock *lock)
}
RTM_EXPORT
(
rt_spin_unlock
)
/**
* @brief This function will disable the local interrupt and then lock the spinlock.
*
* @note If the spinlock is locked, the current CPU will keep polling the spinlock state
* until the spinlock is unlocked.
*
* @param lock is a pointer to the spinlock.
*
* @return Return current cpu interrupt status.
*/
rt_base_t
rt_spin_lock_irqsave
(
struct
rt_spinlock
*
lock
)
{
unsigned
long
level
;
...
...
@@ -98,6 +126,13 @@ rt_base_t rt_spin_lock_irqsave(struct rt_spinlock *lock)
}
RTM_EXPORT
(
rt_spin_lock_irqsave
)
/**
* @brief This function will unlock the spinlock and then restore current cpu interrupt status.
*
* @param lock is a pointer to the spinlock.
*
* @param level is interrupt status returned by rt_spin_lock_irqsave().
*/
void
rt_spin_unlock_irqrestore
(
struct
rt_spinlock
*
lock
,
rt_base_t
level
)
{
rt_hw_spin_unlock
(
&
lock
->
lock
);
...
...
@@ -108,20 +143,29 @@ void rt_spin_unlock_irqrestore(struct rt_spinlock *lock, rt_base_t level)
RTM_EXPORT
(
rt_spin_unlock_irqrestore
)
/**
* This fucntion will return current cpu.
* @brief This fucntion will return current cpu object.
*
* @return Return a pointer to the current cpu object.
*/
struct
rt_cpu
*
rt_cpu_self
(
void
)
{
return
&
_cpus
[
rt_hw_cpu_id
()];
}
/**
* @brief This fucntion will return the cpu object corresponding to index.
*
* @return Return a pointer to the cpu object corresponding to index.
*/
struct
rt_cpu
*
rt_cpu_index
(
int
index
)
{
return
&
_cpus
[
index
];
}
/**
* This function will lock all cpus's scheduler and disable local irq.
* @brief This function will lock all cpus's scheduler and disable local irq.
*
* @return Return current cpu interrupt status.
*/
rt_base_t
rt_cpus_lock
(
void
)
{
...
...
@@ -148,7 +192,9 @@ rt_base_t rt_cpus_lock(void)
RTM_EXPORT
(
rt_cpus_lock
);
/**
* This function will restore all cpus's scheduler and restore local irq.
* @brief This function will restore all cpus's scheduler and restore local irq.
*
* @param level is interrupt status returned by rt_cpus_lock().
*/
void
rt_cpus_unlock
(
rt_base_t
level
)
{
...
...
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