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fixed the coding style in components/drivers/src 

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2529 bbd45198-f89e-11dd-88c7-29a3b14d5316
This commit is contained in:
dzzxzz@gmail.com 2012-12-26 00:29:42 +00:00
parent f29cfc5e79
commit ef5c47e684
4 changed files with 371 additions and 342 deletions
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13
components/drivers/src/completion.c
View File

@ -60,7 +60,8 @@ rt_err_t rt_completion_wait(struct rt_completion *completion,
/* suspend thread */
rt_thread_suspend(thread);
/* add to suspended list */
rt_list_insert_before(&(completion->suspended_list), &(thread->tlist));
rt_list_insert_before(&(completion->suspended_list),
&(thread->tlist));
/* current context checking */
RT_DEBUG_NOT_IN_INTERRUPT;
@ -69,7 +70,9 @@ rt_err_t rt_completion_wait(struct rt_completion *completion,
if (timeout > 0)
{
/* reset the timeout of thread timer and start it */
rt_timer_control(&(thread->thread_timer), RT_TIMER_CTRL_SET_TIME, &timeout);
rt_timer_control(&(thread->thread_timer),
RT_TIMER_CTRL_SET_TIME,
&timeout);
rt_timer_start(&(thread->thread_timer));
}
/* enable interrupt */
@ -110,8 +113,10 @@ void rt_completion_done(struct rt_completion *completion)
struct rt_thread *thread;
/* get thread entry */
thread = rt_list_entry(completion->suspended_list.next, struct rt_thread, tlist);
thread = rt_list_entry(completion->suspended_list.next,
struct rt_thread,
tlist);
/* resume it */
rt_thread_resume(thread);
rt_hw_interrupt_enable(level);

670
components/drivers/src/dataqueue.c
View File

@ -1,327 +1,343 @@
/*
* File : dataqueue.c
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2012, RT-Thread Development Team
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rt-thread.org/license/LICENSE
*
* Change Logs:
* Date Author Notes
* 2012-09-30 Bernard first version.
*/
#include <rtthread.h>
#include <rtdevice.h>
#include <rthw.h>
struct rt_data_item
{
const void *data_ptr;
rt_size_t data_size;
};
rt_err_t
rt_data_queue_init(struct rt_data_queue *queue,
rt_uint16_t size,
rt_uint16_t lwm,
void (*evt_notify)(struct rt_data_queue *queue, rt_uint32_t event))
{
RT_ASSERT(queue != RT_NULL);
queue->evt_notify = evt_notify;
queue->size = size;
queue->lwm = lwm;
queue->waiting_lwm = RT_FALSE;
queue->get_index = 0;
queue->put_index = 0;
rt_list_init(&(queue->suspended_push_list));
rt_list_init(&(queue->suspended_pop_list));
queue->queue = (struct rt_data_item *)rt_malloc(sizeof(struct rt_data_item) * size);
if (queue->queue == RT_NULL)
{
return -RT_ENOMEM;
}
return RT_EOK;
}
RTM_EXPORT(rt_data_queue_init);
rt_err_t rt_data_queue_push(struct rt_data_queue *queue,
const void *data_ptr,
rt_size_t data_size,
rt_int32_t timeout)
{
rt_uint16_t mask;
rt_ubase_t level;
rt_thread_t thread;
rt_err_t result;
RT_ASSERT(queue != RT_NULL);
result = RT_EOK;
thread = rt_thread_self();
mask = queue->size - 1;
level = rt_hw_interrupt_disable();
while (queue->put_index - queue->get_index == queue->size)
{
queue->waiting_lwm = RT_TRUE;
/* queue is full */
if (timeout == 0)
{
result = -RT_ETIMEOUT;
goto __exit;
}
/* current context checking */
RT_DEBUG_NOT_IN_INTERRUPT;
/* reset thread error number */
thread->error = RT_EOK;
/* suspend thread on the push list */
rt_thread_suspend(thread);
rt_list_insert_before(&(queue->suspended_push_list), &(thread->tlist));
/* start timer */
if (timeout > 0)
{
/* reset the timeout of thread timer and start it */
rt_timer_control(&(thread->thread_timer), RT_TIMER_CTRL_SET_TIME, &timeout);
rt_timer_start(&(thread->thread_timer));
}
/* enable interrupt */
rt_hw_interrupt_enable(level);
/* do schedule */
rt_schedule();
/* thread is waked up */
result = thread->error;
level = rt_hw_interrupt_disable();
if (result != RT_EOK) goto __exit;
}
queue->queue[queue->put_index & mask].data_ptr = data_ptr;
queue->queue[queue->put_index & mask].data_size = data_size;
queue->put_index += 1;
if (!rt_list_isempty(&(queue->suspended_pop_list)))
{
/* there is at least one thread in suspended list */
/* get thread entry */
thread = rt_list_entry(queue->suspended_pop_list.next, struct rt_thread, tlist);
/* resume it */
rt_thread_resume(thread);
rt_hw_interrupt_enable(level);
/* perform a schedule */
rt_schedule();
return result;
}
__exit:
rt_hw_interrupt_enable(level);
if ((result == RT_EOK) && queue->evt_notify != RT_NULL)
{
queue->evt_notify(queue, RT_DATAQUEUE_EVENT_PUSH);
}
return result;
}
RTM_EXPORT(rt_data_queue_push);
rt_err_t rt_data_queue_pop(struct rt_data_queue *queue,
const void** data_ptr,
rt_size_t *size,
rt_int32_t timeout)
{
rt_ubase_t level;
rt_thread_t thread;
rt_err_t result;
rt_uint16_t mask;
RT_ASSERT(queue != RT_NULL);
RT_ASSERT(data_ptr != RT_NULL);
RT_ASSERT(size != RT_NULL);
result = RT_EOK;
thread = rt_thread_self();
mask = queue->size - 1;
level = rt_hw_interrupt_disable();
while (queue->get_index == queue->put_index)
{
/* queue is empty */
if (timeout == 0)
{
result = -RT_ETIMEOUT;
goto __exit;
}
/* current context checking */
RT_DEBUG_NOT_IN_INTERRUPT;
/* reset thread error number */
thread->error = RT_EOK;
/* suspend thread on the pop list */
rt_thread_suspend(thread);
rt_list_insert_before(&(queue->suspended_pop_list), &(thread->tlist));
/* start timer */
if (timeout > 0)
{
/* reset the timeout of thread timer and start it */
rt_timer_control(&(thread->thread_timer), RT_TIMER_CTRL_SET_TIME, &timeout);
rt_timer_start(&(thread->thread_timer));
}
/* enable interrupt */
rt_hw_interrupt_enable(level);
/* do schedule */
rt_schedule();
/* thread is waked up */
result = thread->error;
level = rt_hw_interrupt_disable();
if (result != RT_EOK) goto __exit;
}
*data_ptr = queue->queue[queue->get_index & mask].data_ptr;
*size = queue->queue[queue->get_index & mask].data_size;
queue->get_index += 1;
if ((queue->waiting_lwm == RT_TRUE) &&
(queue->put_index - queue->get_index) <= queue->lwm)
{
queue->waiting_lwm = RT_FALSE;
/* there is at least one thread in suspended list and less than low water mark */
if (!rt_list_isempty(&(queue->suspended_push_list)))
{
/* get thread entry */
thread = rt_list_entry(queue->suspended_push_list.next, struct rt_thread, tlist);
/* resume it */
rt_thread_resume(thread);
rt_hw_interrupt_enable(level);
/* perform a schedule */
rt_schedule();
}
if (queue->evt_notify != RT_NULL)
queue->evt_notify(queue, RT_DATAQUEUE_EVENT_LWM);
return result;
}
__exit:
rt_hw_interrupt_enable(level);
if ((result == RT_EOK) && (queue->evt_notify != RT_NULL))
{
queue->evt_notify(queue, RT_DATAQUEUE_EVENT_POP);
}
return result;
}
RTM_EXPORT(rt_data_queue_pop);
rt_err_t rt_data_queue_peak(struct rt_data_queue *queue,
const void** data_ptr,
rt_size_t *size)
{
rt_ubase_t level;
rt_uint16_t mask;
RT_ASSERT(queue != RT_NULL);
mask = queue->size - 1;
level = rt_hw_interrupt_disable();
if (queue->get_index == queue->put_index)
{
rt_hw_interrupt_enable(level);
return -RT_EEMPTY;
}
*data_ptr = queue->queue[queue->get_index & mask].data_ptr;
*size = queue->queue[queue->get_index & mask].data_size;
rt_hw_interrupt_enable(level);
return RT_EOK;
}
RTM_EXPORT(rt_data_queue_peak);
void rt_data_queue_reset(struct rt_data_queue *queue)
{
struct rt_thread *thread;
register rt_ubase_t temp;
rt_enter_critical();
/* wakeup all suspend threads */
/* resume on pop list */
while (!rt_list_isempty(&(queue->suspended_pop_list)))
{
/* disable interrupt */
temp = rt_hw_interrupt_disable();
/* get next suspend thread */
thread = rt_list_entry(queue->suspended_pop_list.next, struct rt_thread, tlist);
/* set error code to RT_ERROR */
thread->error = -RT_ERROR;
/*
* resume thread
* In rt_thread_resume function, it will remove current thread from
* suspend list
*/
rt_thread_resume(thread);
/* enable interrupt */
rt_hw_interrupt_enable(temp);
}
/* resume on push list */
while (!rt_list_isempty(&(queue->suspended_push_list)))
{
/* disable interrupt */
temp = rt_hw_interrupt_disable();
/* get next suspend thread */
thread = rt_list_entry(queue->suspended_push_list.next, struct rt_thread, tlist);
/* set error code to RT_ERROR */
thread->error = -RT_ERROR;
/*
* resume thread
* In rt_thread_resume function, it will remove current thread from
* suspend list
*/
rt_thread_resume(thread);
/* enable interrupt */
rt_hw_interrupt_enable(temp);
}
rt_exit_critical();
rt_schedule();
}
RTM_EXPORT(rt_data_queue_reset);
/*
* File : dataqueue.c
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2012, RT-Thread Development Team
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rt-thread.org/license/LICENSE
*
* Change Logs:
* Date Author Notes
* 2012-09-30 Bernard first version.
*/
#include <rtthread.h>
#include <rtdevice.h>
#include <rthw.h>
struct rt_data_item
{
const void *data_ptr;
rt_size_t data_size;
};
rt_err_t
rt_data_queue_init(struct rt_data_queue *queue,
rt_uint16_t size,
rt_uint16_t lwm,
void (*evt_notify)(struct rt_data_queue *queue, rt_uint32_t event))
{
RT_ASSERT(queue != RT_NULL);
queue->evt_notify = evt_notify;
queue->size = size;
queue->lwm = lwm;
queue->waiting_lwm = RT_FALSE;
queue->get_index = 0;
queue->put_index = 0;
rt_list_init(&(queue->suspended_push_list));
rt_list_init(&(queue->suspended_pop_list));
queue->queue = (struct rt_data_item *)rt_malloc(sizeof(struct rt_data_item) * size);
if (queue->queue == RT_NULL)
{
return -RT_ENOMEM;
}
return RT_EOK;
}
RTM_EXPORT(rt_data_queue_init);
rt_err_t rt_data_queue_push(struct rt_data_queue *queue,
const void *data_ptr,
rt_size_t data_size,
rt_int32_t timeout)
{
rt_uint16_t mask;
rt_ubase_t level;
rt_thread_t thread;
rt_err_t result;
RT_ASSERT(queue != RT_NULL);
result = RT_EOK;
thread = rt_thread_self();
mask = queue->size - 1;
level = rt_hw_interrupt_disable();
while (queue->put_index - queue->get_index == queue->size)
{
queue->waiting_lwm = RT_TRUE;
/* queue is full */
if (timeout == 0)
{
result = -RT_ETIMEOUT;
goto __exit;
}
/* current context checking */
RT_DEBUG_NOT_IN_INTERRUPT;
/* reset thread error number */
thread->error = RT_EOK;
/* suspend thread on the push list */
rt_thread_suspend(thread);
rt_list_insert_before(&(queue->suspended_push_list), &(thread->tlist));
/* start timer */
if (timeout > 0)
{
/* reset the timeout of thread timer and start it */
rt_timer_control(&(thread->thread_timer),
RT_TIMER_CTRL_SET_TIME,
&timeout);
rt_timer_start(&(thread->thread_timer));
}
/* enable interrupt */
rt_hw_interrupt_enable(level);
/* do schedule */
rt_schedule();
/* thread is waked up */
result = thread->error;
level = rt_hw_interrupt_disable();
if (result != RT_EOK) goto __exit;
}
queue->queue[queue->put_index & mask].data_ptr = data_ptr;
queue->queue[queue->put_index & mask].data_size = data_size;
queue->put_index += 1;
if (!rt_list_isempty(&(queue->suspended_pop_list)))
{
/* there is at least one thread in suspended list */
/* get thread entry */
thread = rt_list_entry(queue->suspended_pop_list.next,
struct rt_thread,
tlist);
/* resume it */
rt_thread_resume(thread);
rt_hw_interrupt_enable(level);
/* perform a schedule */
rt_schedule();
return result;
}
__exit:
rt_hw_interrupt_enable(level);
if ((result == RT_EOK) && queue->evt_notify != RT_NULL)
{
queue->evt_notify(queue, RT_DATAQUEUE_EVENT_PUSH);
}
return result;
}
RTM_EXPORT(rt_data_queue_push);
rt_err_t rt_data_queue_pop(struct rt_data_queue *queue,
const void** data_ptr,
rt_size_t *size,
rt_int32_t timeout)
{
rt_ubase_t level;
rt_thread_t thread;
rt_err_t result;
rt_uint16_t mask;
RT_ASSERT(queue != RT_NULL);
RT_ASSERT(data_ptr != RT_NULL);
RT_ASSERT(size != RT_NULL);
result = RT_EOK;
thread = rt_thread_self();
mask = queue->size - 1;
level = rt_hw_interrupt_disable();
while (queue->get_index == queue->put_index)
{
/* queue is empty */
if (timeout == 0)
{
result = -RT_ETIMEOUT;
goto __exit;
}
/* current context checking */
RT_DEBUG_NOT_IN_INTERRUPT;
/* reset thread error number */
thread->error = RT_EOK;
/* suspend thread on the pop list */
rt_thread_suspend(thread);
rt_list_insert_before(&(queue->suspended_pop_list), &(thread->tlist));
/* start timer */
if (timeout > 0)
{
/* reset the timeout of thread timer and start it */
rt_timer_control(&(thread->thread_timer),
RT_TIMER_CTRL_SET_TIME,
&timeout);
rt_timer_start(&(thread->thread_timer));
}
/* enable interrupt */
rt_hw_interrupt_enable(level);
/* do schedule */
rt_schedule();
/* thread is waked up */
result = thread->error;
level = rt_hw_interrupt_disable();
if (result != RT_EOK)
goto __exit;
}
*data_ptr = queue->queue[queue->get_index & mask].data_ptr;
*size = queue->queue[queue->get_index & mask].data_size;
queue->get_index += 1;
if ((queue->waiting_lwm == RT_TRUE) &&
(queue->put_index - queue->get_index) <= queue->lwm)
{
queue->waiting_lwm = RT_FALSE;
/*
* there is at least one thread in suspended list
* and less than low water mark
*/
if (!rt_list_isempty(&(queue->suspended_push_list)))
{
/* get thread entry */
thread = rt_list_entry(queue->suspended_push_list.next,
struct rt_thread,
tlist);
/* resume it */
rt_thread_resume(thread);
rt_hw_interrupt_enable(level);
/* perform a schedule */
rt_schedule();
}
if (queue->evt_notify != RT_NULL)
queue->evt_notify(queue, RT_DATAQUEUE_EVENT_LWM);
return result;
}
__exit:
rt_hw_interrupt_enable(level);
if ((result == RT_EOK) && (queue->evt_notify != RT_NULL))
{
queue->evt_notify(queue, RT_DATAQUEUE_EVENT_POP);
}
return result;
}
RTM_EXPORT(rt_data_queue_pop);
rt_err_t rt_data_queue_peak(struct rt_data_queue *queue,
const void** data_ptr,
rt_size_t *size)
{
rt_ubase_t level;
rt_uint16_t mask;
RT_ASSERT(queue != RT_NULL);
mask = queue->size - 1;
level = rt_hw_interrupt_disable();
if (queue->get_index == queue->put_index)
{
rt_hw_interrupt_enable(level);
return -RT_EEMPTY;
}
*data_ptr = queue->queue[queue->get_index & mask].data_ptr;
*size = queue->queue[queue->get_index & mask].data_size;
rt_hw_interrupt_enable(level);
return RT_EOK;
}
RTM_EXPORT(rt_data_queue_peak);
void rt_data_queue_reset(struct rt_data_queue *queue)
{
struct rt_thread *thread;
register rt_ubase_t temp;
rt_enter_critical();
/* wakeup all suspend threads */
/* resume on pop list */
while (!rt_list_isempty(&(queue->suspended_pop_list)))
{
/* disable interrupt */
temp = rt_hw_interrupt_disable();
/* get next suspend thread */
thread = rt_list_entry(queue->suspended_pop_list.next,
struct rt_thread,
tlist);
/* set error code to RT_ERROR */
thread->error = -RT_ERROR;
/*
* resume thread
* In rt_thread_resume function, it will remove current thread from
* suspend list
*/
rt_thread_resume(thread);
/* enable interrupt */
rt_hw_interrupt_enable(temp);
}
/* resume on push list */
while (!rt_list_isempty(&(queue->suspended_push_list)))
{
/* disable interrupt */
temp = rt_hw_interrupt_disable();
/* get next suspend thread */
thread = rt_list_entry(queue->suspended_push_list.next,
struct rt_thread,
tlist);
/* set error code to RT_ERROR */
thread->error = -RT_ERROR;
/*
* resume thread
* In rt_thread_resume function, it will remove current thread from
* suspend list
*/
rt_thread_resume(thread);
/* enable interrupt */
rt_hw_interrupt_enable(temp);
}
rt_exit_critical();
rt_schedule();
}
RTM_EXPORT(rt_data_queue_reset);

16
components/drivers/src/pipe.c
View File

@ -42,7 +42,8 @@ static rt_size_t rt_pipe_read(rt_device_t dev,
{
rt_thread_suspend(thread);
/* waiting on suspended read list */
rt_list_insert_before(&(pipe->suspended_read_list), &(thread->tlist));
rt_list_insert_before(&(pipe->suspended_read_list),
&(thread->tlist));
rt_hw_interrupt_enable(level);
rt_schedule();
@ -52,8 +53,9 @@ static rt_size_t rt_pipe_read(rt_device_t dev,
if (!rt_list_isempty(&pipe->suspended_write_list))
{
/* get suspended thread */
thread = rt_list_entry(pipe->suspended_write_list.next,
struct rt_thread, tlist);
thread = rt_list_entry(pipe->suspended_write_list.next,
struct rt_thread,
tlist);
/* resume the write thread */
rt_thread_resume(thread);
@ -102,7 +104,8 @@ static rt_size_t rt_pipe_write(rt_device_t dev,
/* pipe full, waiting on suspended write list */
rt_thread_suspend(thread);
/* waiting on suspended read list */
rt_list_insert_before(&(pipe->suspended_write_list), &(thread->tlist));
rt_list_insert_before(&(pipe->suspended_write_list),
&(thread->tlist));
rt_hw_interrupt_enable(level);
rt_schedule();
@ -113,7 +116,8 @@ static rt_size_t rt_pipe_write(rt_device_t dev,
{
/* get suspended thread */
thread = rt_list_entry(pipe->suspended_read_list.next,
struct rt_thread, tlist);
struct rt_thread,
tlist);
/* resume the read thread */
rt_thread_resume(thread);
@ -158,7 +162,7 @@ rt_err_t rt_pipe_create(const char *name, rt_size_t size)
/* initialize suspended list */
rt_list_init(&pipe->suspended_read_list);
rt_list_init(&pipe->suspended_write_list);
/* initialize ring buffer */
rt_ringbuffer_init(&pipe->ringbuffer, rb_memptr, size);

14
components/drivers/src/ringbuffer.c
View File

@ -38,7 +38,7 @@ rt_size_t rt_ringbuffer_put(struct rt_ringbuffer *rb,
rt_uint16_t size;
rt_uint16_t mask;
rt_uint16_t write_position;
RT_ASSERT(rb != RT_NULL);
mask = rb->buffer_size - 1;
@ -60,9 +60,11 @@ rt_size_t rt_ringbuffer_put(struct rt_ringbuffer *rb,
}
else
{
memcpy(&rb->buffer_ptr[write_position], ptr,
memcpy(&rb->buffer_ptr[write_position],
ptr,
rb->buffer_size - write_position);
memcpy(&rb->buffer_ptr[0], &ptr[rb->buffer_size - write_position],
memcpy(&rb->buffer_ptr[0],
&ptr[rb->buffer_size - write_position],
length - (rb->buffer_size - write_position));
}
rb->write_index += length;
@ -126,9 +128,11 @@ rt_size_t rt_ringbuffer_get(struct rt_ringbuffer *rb,
else
{
/* copy first and second */
memcpy(ptr, &rb->buffer_ptr[read_position],
memcpy(ptr,
&rb->buffer_ptr[read_position],
rb->buffer_size - read_position);
memcpy(&ptr[rb->buffer_size - read_position], &rb->buffer_ptr[0],
memcpy(&ptr[rb->buffer_size - read_position],
&rb->buffer_ptr[0],
length - rb->buffer_size + read_position);
}
rb->read_index += length;