rt-thread/bsp/efm32/drv_timer.h

/******************************************************************//**
 * @file 		drv_timer.h
 * @brief 	USART driver of RT-Thread RTOS for EFM32
 * 	COPYRIGHT (C) 2011, RT-Thread Development Team
 * @author 	onelife
 * @version 	0.4 beta
 **********************************************************************
 * @section License
 * 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
 **********************************************************************
 * @section Change Logs
 * Date			Author		Notes
 * 2011-01-18	onelife		Initial creation for EFM32
 *********************************************************************/
#ifndef __DRV_TIMER_H__
#define __DRV_TIMER_H__

/* Includes -------------------------------------------------------------------*/
#include "hdl_interrupt.h"

/* Exported types -------------------------------------------------------------*/
struct efm32_timer_device_t
{
	TIMER_TypeDef		*timer_device;
	efm32_irq_hook_t 	hook;
};

struct efm32_timer_control_t
{
	rt_uint32_t 		period;
	efm32_irq_hook_t	hook;
};

/* Exported constants ---------------------------------------------------------*/
/* Exported macro -------------------------------------------------------------*/
#define TMR_MODE_ONESHOT			(true)
#define TMR_MODE_CONTINUOUS			(false)

#define TMR_CFG_PRESCALER			timerPrescale1024

/* Exported functions --------------------------------------------------------- */
void rt_hw_timer_init(void);

#endif /*__DRV_TIMER_H__ */