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Diffstat (limited to 'watch-library/hal/include/hpl_timer.h')
| -rw-r--r-- | watch-library/hal/include/hpl_timer.h | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/watch-library/hal/include/hpl_timer.h b/watch-library/hal/include/hpl_timer.h new file mode 100644 index 00000000..9bdfbb77 --- /dev/null +++ b/watch-library/hal/include/hpl_timer.h @@ -0,0 +1,160 @@ +/** + * \file + * + * \brief Timer related functionality declaration. + * + * Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries. + * + * \asf_license_start + * + * \page License + * + * Subject to your compliance with these terms, you may use Microchip + * software and any derivatives exclusively with Microchip products. + * It is your responsibility to comply with third party license terms applicable + * to your use of third party software (including open source software) that + * may accompany Microchip software. + * + * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES, + * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE, + * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY, + * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE + * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL + * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE + * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE + * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE. TO THE FULLEST EXTENT + * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY + * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY, + * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE. + * + * \asf_license_stop + * + */ + +#ifndef _HPL_TIMER_H_INCLUDED +#define _HPL_TIMER_H_INCLUDED + +/** + * \addtogroup HPL Timer + * + * \section hpl_timer_rev Revision History + * - v1.0.0 Initial Release + * + *@{ + */ + +#include <compiler.h> +#include <hpl_irq.h> + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * \brief Timer device structure + * + * The Timer device structure forward declaration. + */ +struct _timer_device; + +/** + * \brief Timer interrupt callbacks + */ +struct _timer_callbacks { + void (*period_expired)(struct _timer_device *device); +}; + +/** + * \brief Timer device structure + */ +struct _timer_device { + struct _timer_callbacks timer_cb; + struct _irq_descriptor irq; + void * hw; +}; + +/** + * \brief Timer functions, pointers to low-level functions + */ +struct _timer_hpl_interface { + int32_t (*init)(struct _timer_device *const device, void *const hw); + void (*deinit)(struct _timer_device *const device); + void (*start_timer)(struct _timer_device *const device); + void (*stop_timer)(struct _timer_device *const device); + void (*set_timer_period)(struct _timer_device *const device, const uint32_t clock_cycles); + uint32_t (*get_period)(const struct _timer_device *const device); + bool (*is_timer_started)(const struct _timer_device *const device); + void (*set_timer_irq)(struct _timer_device *const device); +}; +/** + * \brief Initialize TCC + * + * This function does low level TCC configuration. + * + * \param[in] device The pointer to timer device instance + * \param[in] hw The pointer to hardware instance + * + * \return Initialization status. + */ +int32_t _timer_init(struct _timer_device *const device, void *const hw); + +/** + * \brief Deinitialize TCC + * + * \param[in] device The pointer to timer device instance + */ +void _timer_deinit(struct _timer_device *const device); + +/** + * \brief Start hardware timer + * + * \param[in] device The pointer to timer device instance + */ +void _timer_start(struct _timer_device *const device); + +/** + * \brief Stop hardware timer + * + * \param[in] device The pointer to timer device instance + */ +void _timer_stop(struct _timer_device *const device); + +/** + * \brief Set timer period + * + * \param[in] device The pointer to timer device instance + */ +void _timer_set_period(struct _timer_device *const device, const uint32_t clock_cycles); + +/** + * \brief Retrieve timer period + * + * \param[in] device The pointer to timer device instance + * + * \return Timer period + */ +uint32_t _timer_get_period(const struct _timer_device *const device); + +/** + * \brief Check if timer is running + * + * \param[in] device The pointer to timer device instance + * + * \return Check status. + * \retval true The given timer is running + * \retval false The given timer is not running + */ +bool _timer_is_started(const struct _timer_device *const device); + +/** + * \brief Set timer IRQ + * + * \param[in] device The pointer to timer device instance + */ +void _timer_set_irq(struct _timer_device *const device); + +#ifdef __cplusplus +} +#endif +/**@}*/ +#endif /* _HPL_TIMER_H_INCLUDED */ |