mirror of
https://github.com/espressif/esp-nimble.git
synced 2026-09-24 18:07:22 +00:00
Andrzej Kaczmarek
f1dba08467
This patch adds port of Nimble stack to FreeRTOS based on nRF5 SDK. It's split into 'common' part which can be used a base for porting to any other platform and 'freertos_nrf5_sdk' which has FreeRTOS-specific files and makefile. Building and flashing is similar to other demo apps from nRF5 SDK: $ make -C porting/freertos_nrf5_sdk The resulting image can be flashed on nRF52 DK: $ make -C porting/freertos_nrf5_sdk flash Location of nRF5 SDK is set by NRF5_SDK_ROOT variable. By default it is set to 'nrf5_sdk' subdirectory so a symlink would work just fine: $ ln -s <x>/nRF5_SDK_12.3.0_d7731ad porting/freertos_nrf5_sdk/nrf5_sdk
106 lines
3.4 KiB
C
106 lines
3.4 KiB
C
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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#ifndef H_HAL_TIMER_
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#define H_HAL_TIMER_
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#include <inttypes.h>
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#include "os/queue.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <inttypes.h>
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#include "os/queue.h"
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/* HAL timer struct */
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typedef void (*hal_timer_cb)(void *arg);
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/**
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* The HAL timer structure. The user can declare as many of these structures
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* as desired. They are enqueued on a particular HW timer queue when the user
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* calls the hal_timer_start or hal_timer_start_at API. The user must have
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* called hal_timer_set_cb before starting a timer.
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*
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* NOTE: the user should not have to modify/examine the contents of this
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* structure; the hal timer API should be used.
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*/
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struct hal_timer
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{
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void *bsp_timer; /* Internal platform specific pointer */
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hal_timer_cb cb_func; /* Callback function */
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void *cb_arg; /* Callback argument */
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uint32_t expiry; /* Tick at which timer should expire */
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TAILQ_ENTRY(hal_timer) link; /* Queue linked list structure */
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};
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/* Initialize a HW timer. */
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int hal_timer_init(int timer_num, void *cfg);
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/* Un-initialize a HW timer. */
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int hal_timer_deinit(int timer_num);
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/*
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* Config a HW timer at the given frequency and start it. If the exact
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* frequency is not obtainable the closest obtainable frequency is set.
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*/
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int hal_timer_config(int timer_num, uint32_t freq_hz);
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/*
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* Returns the resolution of the HW timer. NOTE: the frequency may not be
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* obtainable so the caller can use this to determine the resolution.
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* Returns resolution in nanoseconds. A return value of 0 indicates an invalid
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* timer was used.
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*/
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uint32_t hal_timer_get_resolution(int timer_num);
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/* Returns the HW timer current tick value */
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uint32_t hal_timer_read(int timer_num);
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/* Perform a blocking delay for a number of ticks. */
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int hal_timer_delay(int timer_num, uint32_t ticks);
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/*
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* Set the timer structure prior to use. Should not be called if the timer
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* is running. Must be called at least once prior to using timer.
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*/
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int hal_timer_set_cb(int timer_num, struct hal_timer *tmr, hal_timer_cb cb_func,
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void *arg);
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/* Start a timer that will expire in 'ticks' ticks. Ticks cannot be 0 */
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int hal_timer_start(struct hal_timer *, uint32_t ticks);
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/*
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* Start a timer that will expire when the timer reaches 'tick'. If tick
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* has already passed the timer callback will be called "immediately" (at
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* interrupt context).
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*/
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int hal_timer_start_at(struct hal_timer *, uint32_t tick);
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/* Stop a currently running timer; associated callback will NOT be called */
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int hal_timer_stop(struct hal_timer *);
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#ifdef __cplusplus
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}
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#endif
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#endif /* H_HAL_TIMER_ */
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