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/*
* Copyright (c) 2006-2022, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2012-02-21 onelife Initial creation for EFM32
*/
/***************************************************************************//**
* @addtogroup efm32
* @{
******************************************************************************/
/* Includes ------------------------------------------------------------------*/
#include "board.h"
#include "drv_emu.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
#ifdef EFM32_EMU_DEBUG
#define emu_debug(format,args...) rt_kprintf(format, ##args)
#else
#define emu_debug(format,args...)
#endif
/* Private variables ---------------------------------------------------------*/
struct efm32_emu_task emu_task;
/***************************************************************************//**
* @brief
* Register SPI device
*
* @details
*
* @note
*
* @param[in] device
* Pointer to device descriptor
*
* @param[in] name
* Device name
*
* @param[in] flag
* Configuration flags
*
* @param[in] spi
* Pointer to SPI device descriptor
*
* @return
* Error code
******************************************************************************/
void emu_task_main_loop(void *parameter)
{
struct efm32_emu_task *emu_task = (struct efm32_emu_task *)parameter;
while(1)
{
if (emu_task->em2.value == EMU_TASK_EM2_TOKEN_NUMBER)
{
if (emu_task->em3.value == EMU_TASK_EM3_TOKEN_NUMBER)
{
if (emu_task->em4.value == EMU_TASK_EM4_TOKEN_NUMBER)
{
EMU_EnterEM4();
}
else
{
EMU_EnterEM3(RT_TRUE);
}
}
else
{
EMU_EnterEM2(RT_TRUE);
}
}
else
{
EMU_EnterEM1();
}
}
}
#define OS_TIMER_LIST_EMPTY (0x00000001)
#define OS_TIMER_LIST_NOT_EMPTY (0x00000002)
void emu_event_send(rt_uint32_t event)
{
switch (event)
{
case OS_TIMER_LIST_EMPTY:
// SysTick->CTRL &= ~SysTick_CTRL_CLKSOURCE_Msk;
break;
case OS_TIMER_LIST_NOT_EMPTY:
// SysTick->CTRL |= SysTick_CTRL_CLKSOURCE_Msk;
break;
}
}
rt_bool_t emu_is_emu(struct rt_thread *thread)
{
return (thread == &emu_task.thread);
}
void emu_all_disable(void)
{
if (rt_sem_take(&emu_task.em4, RT_WAITING_NO) != RT_EOK)
{
RT_ASSERT(0);
}
if (rt_sem_take(&emu_task.em3, RT_WAITING_NO) != RT_EOK)
{
RT_ASSERT(0);
}
if (rt_sem_take(&emu_task.em2, RT_WAITING_NO) != RT_EOK)
{
RT_ASSERT(0);
}
}
void emu_em2_disable(void)
{
if (rt_sem_take(&emu_task.em2, RT_WAITING_NO) != RT_EOK)
{
RT_ASSERT(0);
}
}
void emu_em2_enable(void)
{
if (rt_sem_release(&emu_task.em2) != RT_EOK)
{
RT_ASSERT(0);
}
}
void emu_em3_disable(void)
{
if (rt_sem_take(&emu_task.em3, RT_WAITING_NO) != RT_EOK)
{
RT_ASSERT(0);
}
}
void emu_em3_enable(void)
{
if (rt_sem_release(&emu_task.em3) != RT_EOK)
{
RT_ASSERT(0);
}
}
void emu_em4_disable(void)
{
if (rt_sem_take(&emu_task.em4, RT_WAITING_NO) != RT_EOK)
{
RT_ASSERT(0);
}
}
void emu_em4_enable(void)
{
if (rt_sem_release(&emu_task.em4) != RT_EOK)
{
RT_ASSERT(0);
}
}
/***************************************************************************//**
* @brief
* Initialize EMU module related hardware
*
* @details
*
* @note
*
******************************************************************************/
void efm32_emu_init(void)
{
do
{
/* init token */
if (rt_sem_init(
&emu_task.em2,
"EM2",
EMU_TASK_EM2_TOKEN_NUMBER,
RT_IPC_FLAG_FIFO) != RT_EOK)
{
break;
}
if (rt_sem_init(
&emu_task.em3,
"EM3",
EMU_TASK_EM3_TOKEN_NUMBER,
RT_IPC_FLAG_FIFO) != RT_EOK)
{
break;
}
if (rt_sem_init(
&emu_task.em4,
"EM4",
EMU_TASK_EM4_TOKEN_NUMBER,
RT_IPC_FLAG_FIFO) != RT_EOK)
{
break;
}
/* init thread */
if (rt_thread_init(
&emu_task.thread,
"EMU",
emu_task_main_loop, (void *)&emu_task,
(void *)&emu_task.stack, sizeof(emu_task.stack),
RT_THREAD_PRIORITY_MAX - 2, RT_TICK_PER_SECOND) != RT_EOK)
{
break;
}
/* startup */
if (rt_thread_startup(&emu_task.thread) != RT_EOK)
{
break;
}
} while (0);
rt_kprintf("EMU err: init failed!\n");
}
/*******************************************************************************
* Export to FINSH
******************************************************************************/
#ifdef RT_USING_FINSH
#include <finsh.h>
void list_emu(void)
{
rt_kprintf(" --------- EMU Status ---------\n");
rt_kprintf(" em2 token used %d\n",
EMU_TASK_EM2_TOKEN_NUMBER - emu_task.em2.value);
rt_kprintf(" em3 token used %d\n",
EMU_TASK_EM3_TOKEN_NUMBER - emu_task.em3.value);
rt_kprintf(" em4 token used %d\n",
EMU_TASK_EM4_TOKEN_NUMBER - emu_task.em4.value);
}
FINSH_FUNCTION_EXPORT(list_emu, list the EMU status)
#endif
/***************************************************************************//**
* @}
******************************************************************************/
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