mayhem-firmware/firmware/chibios/os/hal/templates/hal_lld.h

/*
    ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio

    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
    You may obtain a copy of the License at

        http://www.apache.org/licenses/LICENSE-2.0

    Unless required by applicable law or agreed to in writing, software
    distributed under the License is distributed on an "AS IS" BASIS,
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    See the License for the specific language governing permissions and
    limitations under the License.
*/

/**
 * @file    templates/hal_lld.h
 * @brief   HAL subsystem low level driver header template.
 *
 * @addtogroup HAL
 * @{
 */

#ifndef _HAL_LLD_H_
#define _HAL_LLD_H_

/*===========================================================================*/
/* Driver constants.                                                         */
/*===========================================================================*/

/**
 * @brief   Defines the support for realtime counters in the HAL.
 */
#define HAL_IMPLEMENTS_COUNTERS TRUE

/**
 * @name    Platform identification
 * @{
 */
#define PLATFORM_NAME           ""
/** @} */

/*===========================================================================*/
/* Driver pre-compile time settings.                                         */
/*===========================================================================*/

/*===========================================================================*/
/* Derived constants and error checks.                                       */
/*===========================================================================*/

/*
 * Configuration-related checks.
 */
#if !defined(PLATFORM_MCUCONF)
#error "Using a wrong mcuconf.h file, PLATFORM_MCUCONF not defined"
#endif

/*===========================================================================*/
/* Driver data structures and types.                                         */
/*===========================================================================*/

/**
 * @brief   Type representing a system clock frequency.
 */
typedef uint32_t halclock_t;

/**
 * @brief   Type of the realtime free counter value.
 */
typedef uint32_t halrtcnt_t;

/*===========================================================================*/
/* Driver macros.                                                            */
/*===========================================================================*/

/**
 * @brief   Returns the current value of the system free running counter.
 * @note    This service is implemented by returning the content of the
 *          DWT_CYCCNT register.
 *
 * @return              The value of the system free running counter of
 *                      type halrtcnt_t.
 *
 * @notapi
 */
#define hal_lld_get_counter_value()         0

/**
 * @brief   Realtime counter frequency.
 * @note    The DWT_CYCCNT register is incremented directly by the system
 *          clock so this function returns STM32_HCLK.
 *
 * @return              The realtime counter frequency of type halclock_t.
 *
 * @notapi
 */
#define hal_lld_get_counter_frequency()     0

/*===========================================================================*/
/* External declarations.                                                    */
/*===========================================================================*/

#ifdef __cplusplus
extern "C" {
#endif
  void hal_lld_init(void);
#ifdef __cplusplus
}
#endif

#endif /* _HAL_LLD_H_ */

/** @} */