- ';
30 | for (var i in data.children) {
31 | result+='
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'+
43 | '
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54 | } else {
55 | searchBox=''+
44 | ''+
51 | '
'+
52 | ''+
53 | ''+
56 | ''+
57 | '
'+
60 | ''+
64 | ''+
65 | ''+
67 | '
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69 | ''
70 | '
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71 | }
72 | }
73 |
74 | $('#main-nav').before(''+
60 | ''+
64 | ''+
65 | ''+
67 | ''
69 | ''
70 | ''+
75 | ''+
78 | ''+
79 | '
');
80 | $('#main-nav').append(makeTree(menudata,relPath));
81 | $('#main-nav').children(':first').addClass('sm sm-dox').attr('id','main-menu');
82 | if (searchBox) {
83 | $('#main-menu').append('');
84 | }
85 | var $mainMenuState = $('#main-menu-state');
86 | var prevWidth = 0;
87 | if ($mainMenuState.length) {
88 | function initResizableIfExists() {
89 | if (typeof initResizable==='function') initResizable();
90 | }
91 | // animate mobile menu
92 | $mainMenuState.change(function(e) {
93 | var $menu = $('#main-menu');
94 | var options = { duration: 250, step: initResizableIfExists };
95 | if (this.checked) {
96 | options['complete'] = function() { $menu.css('display', 'block') };
97 | $menu.hide().slideDown(options);
98 | } else {
99 | options['complete'] = function() { $menu.css('display', 'none') };
100 | $menu.show().slideUp(options);
101 | }
102 | });
103 | // set default menu visibility
104 | function resetState() {
105 | var $menu = $('#main-menu');
106 | var $mainMenuState = $('#main-menu-state');
107 | var newWidth = $(window).outerWidth();
108 | if (newWidth!=prevWidth) {
109 | if ($(window).outerWidth()<768) {
110 | $mainMenuState.prop('checked',false); $menu.hide();
111 | $('#searchBoxPos1').html(searchBox);
112 | $('#searchBoxPos2').hide();
113 | } else {
114 | $menu.show();
115 | $('#searchBoxPos1').empty();
116 | $('#searchBoxPos2').html(searchBox);
117 | $('#searchBoxPos2').show();
118 | }
119 | prevWidth = newWidth;
120 | }
121 | }
122 | $(window).ready(function() { resetState(); initResizableIfExists(); });
123 | $(window).resize(resetState);
124 | }
125 | $('#main-menu').smartmenus();
126 | }
127 | /* @license-end */
128 |
--------------------------------------------------------------------------------
/include/cy_worker_thread.h:
--------------------------------------------------------------------------------
1 | /***********************************************************************************************//**
2 | * \file cy_worker_thread.h
3 | *
4 | * \brief
5 | * Defines the interface for the worker thread utility. Provides prototypes for
6 | * functions that allow creating/deleting worker threads and queueing work to
7 | * a worker thread.
8 | ***************************************************************************************************
9 | * \copyright
10 | * Copyright 2018-2022 Cypress Semiconductor Corporation (an Infineon company) or
11 | * an affiliate of Cypress Semiconductor Corporation
12 | *
13 | * SPDX-License-Identifier: Apache-2.0
14 | *
15 | * Licensed under the Apache License, Version 2.0 (the "License");
16 | * you may not use this file except in compliance with the License.
17 | * You may obtain a copy of the License at
18 | *
19 | * http://www.apache.org/licenses/LICENSE-2.0
20 | *
21 | * Unless required by applicable law or agreed to in writing, software
22 | * distributed under the License is distributed on an "AS IS" BASIS,
23 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
24 | * See the License for the specific language governing permissions and
25 | * limitations under the License.
26 | **************************************************************************************************/
27 |
28 | #pragma once
29 |
30 | #ifdef __cplusplus
31 | extern "C" {
32 | #endif
33 |
34 | #include
24 |
55 |
65 |
70 |
25 |
26 |
27 |
35 |
36 |
37 |
38 |
43 |
44 |
45 |
53 |
54 |  |
29 |
30 | Abstraction RTOS
31 | |
32 |
71 |
72 |
106 |
116 |
117 |
118 |
--------------------------------------------------------------------------------
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/README.md:
--------------------------------------------------------------------------------
1 | # RTOS Abstraction
2 |
3 | ## Overview
4 |
5 | The RTOS abstraction layer provides simple RTOS services like threads, semaphores, mutexes, queues, and timers. It is not intended to be a full features RTOS interface, but the provide just enough support to allow for RTOS independent drivers and middleware. This allows middleware applications to be as portable as possible within ModusToolbox™. This library provides a unified API around the actual RTOS. This allows middleware libraries to be written once independent of the RTOS actually selected for the application. The abstraction layer provides access to all the standard RTOS resources listed in the feature section below.
6 |
7 | While the primary purpose of the library is for middleware, the abstraction layer can be used by the application code. However, since this API does not provide all RTOS features and the application generally knows what RTOS is being used, this is typically an unnecessary overhead.
8 |
9 | All the RTOS abstraction layer functions generally all work the same way. The basic process is:
10 | 1. Include the cyabs_rtos.h header file so that you have access to the RTOS functions.
11 | 2. Declare a variable of the right type (e.g. cy_mutex_t)
12 | 3. Call the appropriate create or initialize function (e.g. cy_rtos_init_mutex()). Provide it with a reference to the variable that was created in step 2.
13 | 4. Access the RTOS object using one of the access functions. e.g. cy_rtos_set_mutex().
14 | 5. If you don't need it anymore, free up the pointer with the appropriate de-init function (e.g. cy_rtos_deinit_mutex()).
15 |
16 | NOTE: All these functions need a pointer, so it is generally best to declare these "shared" resources as static global variables within the file that they are used.
17 |
18 | ## Getting Started
19 |
20 | To use the RTOS Abstraction, simply include a reference to `cyabs_rtos.h` and update the application's makefile to include the appropriate component. e.g. one of:
21 | * COMPONENTS+=RTX
22 | * COMPONENTS+=FREERTOS
23 | * COMPONENTS+=THREADX
24 |
25 | ## Features
26 |
27 | * APIs for interacting with common RTOS Features including:
28 | * Threads
29 | * Mutexes
30 | * Semaphores
31 | * Timers
32 | * Queues
33 | * Events
34 | * Implementations are provided for
35 | * FreeRTOS
36 | * RTX (CMSIS RTOS)
37 | * ThreadX
38 | * WICED RTOS
39 |
40 | ## RTOS Configuration Requirements
41 | ### FreeRTOS
42 | To enable all functionality when using with FreeRTOS, the following configuration options must be enabled in FreeRTOSConfig.h:
43 | * configSUPPORT_DYNAMIC_ALLOCATION
44 | * configSUPPORT_STATIC_ALLOCATION
45 | * configUSE_COUNTING_SEMAPHORES
46 | * configUSE_MUTEXES
47 | * configUSE_NEWLIB_REENTRANT
48 | * configUSE_RECURSIVE_MUTEXES
49 | * configUSE_TASK_NOTIFICATIONS
50 | * configUSE_TICKLESS_IDLE
51 | * configUSE_TIMERS
52 | * configUSE_TRACE_FACILITY
53 |
54 | * INCLUDE_vTaskDelay
55 | * INCLUDE_vTaskDelete
56 | * INCLUDE_vTaskPrioritySet
57 | * INCLUDE_uxTaskPriorityGet
58 | * INCLUDE_xTimerPendFunctionCall
59 | * INCLUDE_vTaskSuspend
60 |
61 | Enabling configSUPPORT_STATIC_ALLOCATION requires the application to provide implementations for `vApplicationGetIdleTaskMemory` and
62 | `vApplicationGetTimerTaskMemory`functions. Weak implementations for these functions are provided as a part of this library. These can
63 | be overridden by the application if custom implementations of these functions are desired.
76 |
77 |
78 |
79 |
80 |
83 |
84 |
85 |
86 |
87 |
88 | API Reference
89 |
105 | The following provides a list of API documentation
90 |
91 |
103 |
104 | [detail level 12]
| ▼Common | General types and defines for working with the RTOS abstraction layer |
| RTOS Specific Types, Defines and Statuses | The following defines, types and return statuses have values that are specific to each RTOS port |
| Events | APIs for acquiring and working with Events |
| Mutex | APIs for acquiring and working with Mutexes |
| Queue | APIs for creating and working with Queues |
| Semaphore | APIs for acquiring and working with Semaphores |
| Threads | APIs for creating and working with Threads |
| Scheduler | APIs for working with Scheduler |
| Time | APIs for getting the current time and waiting |
| Timer | APIs for creating and working with Timers |
| Worker Thread Utility | Worker thread utility that allows functions to be run a different thread context |
64 | 65 | #### Low Power Configuration 66 | This library provides an API `vApplicationSleep` which can be used to enable tickless support in FreeRTOS. In order to enable tickless mode with this API, the following changes need to be made in `FreeRTOSConfig.h`: 67 | * Enables tickless mode with user specified `portSUPPRESS_TICKS_AND_SLEEP` implementation.
68 | \c \#define `configUSE_TICKLESS_IDLE 2` 69 | * Hook `portSUPPRESS_TICKS_AND_SLEEP` macro to `vApplicationSleep` implementation.
70 | \c \#define `portSUPPRESS_TICKS_AND_SLEEP( xIdleTime ) vApplicationSleep( xIdleTime )` 71 | 72 | In tickless mode `vApplicationSleep` updates the number of RTOS ticks that have passed since the tick interrupt was stopped using `vTaskStepTick`, taking into account the sleep/deepsleep latency. 73 | * The maximum tickless idle time can be calculated as follow: 74 | * `MaxIdleTime = LPtimerDelay + latency` where: `latency = PreSleepLatency + PostSleepLatency`, `LPtimerDelay = xExpectedIdleTime - latency`. 75 | 76 | **Note**: The `LPtimerDelay` represents the duration in which the IP is configured to Wake-up the device. Wake-up can happen before its expiration if one other configured interrupt triggers during this time. 77 | 78 | * In case of `xExpectedIdleTime <= latency` WFI is executed instead, and normal sleep is expected to be reached (SCR->SLEEPDEEP = 0). 79 | 80 | * The actual Idle time for which the Systick timer is disabled, is always update in vTaskStepTick to keep the RTOS alwyas up to date, independently from if the tickless sleep is reached or not successfully. The reason for this is to find in the sequence of operations to reach the sleep, the Systick is disabled before the (deep)sleep callbacks are called, so if one of them will not allow (deep)sleep, the ticks for which the check is performed needs to be anyway counted in the RTOS. 81 | 82 | Functions cy_rtos_scheduler_suspend/cy_rtos_scheduler_resume can be called from ISR but calls need to be paired to restore the saved interrupt status correctly so a structure to save these values has been implemented. 83 | The size of this structure can be controlled with CY_RTOS_MAX_SUSPEND_NESTING. This macro is overridable and its default value is 3. 84 | 85 | For further details on Low power support in FreeRTOS please refer to documentation [here](https://www.freertos.org/low-power-tickless-rtos.html) 86 | 87 | #### Known Limitations 88 | The cy_rtos_event_* functions accept a 32-bit event as an argument. However, FreeRTOS requires 8-bits(`configUSE_16_BIT_TICKS` == 1) or 24-bits (`configUSE_16_BIT_TICKS` == 0) to run successfully. Hence the application should not reference these unsupported bits. Check the FreeRTOS implementation of `eventEVENT_BITS_CONTROL_BYTES` in event_group.c for internal details. 89 | 90 | ### RTX / ThreadX 91 | No specific requirements exist 92 | 93 | ## Porting Notes 94 | In order to port to a new environment, the file cyabs_rtos_impl.h must be provided with definitions of some basic types for the abstraction layer. The types expected to be defined are: 95 | 96 | - `cy_thread_t` : typedef from underlying RTOS thread type 97 | - `cy_thread_arg_t` : typedef from the RTOS type that is passed to the entry function of a thread. 98 | - `cy_mutex_t` : typedef from the underlying RTOS mutex type 99 | - `cy_semaphore_t`: typedef from the underlying RTOS semaphore type 100 | - `cy_event_t` : typedef from the underlying RTOS event type 101 | - `cy_queue_t` : typedef from the underlying RTOS queue type 102 | - `cy_timer_callback_arg_t` : typedef from the RTOS type that is passed to the timer callback function 103 | - `cy_timer_t` : typedef from the underlying RTOS timer type 104 | - `cy_time_t` : count of time in milliseconds 105 | - `cy_rtos_error_t` : typedef from the underlying RTOS error type 106 | 107 | The enum `cy_thread_priority_t` needs to have the following priority values defined and mapped to RTOS specific values: 108 | - `CY_RTOS_PRIORITY_MIN` 109 | - `CY_RTOS_PRIORITY_LOW` 110 | - `CY_RTOS_PRIORITY_BELOWNORMAL` 111 | - `CY_RTOS_PRIORITY_NORMAL` 112 | - `CY_RTOS_PRIORITY_ABOVENORMAL` 113 | - `CY_RTOS_PRIORITY_HIGH` 114 | - `CY_RTOS_PRIORITY_REALTIME` 115 | - `CY_RTOS_PRIORITY_MAX` 116 | 117 | Finally, the following macros need to be defined for memory allocations: 118 | - `CY_RTOS_MIN_STACK_SIZE` 119 | - `CY_RTOS_ALIGNMENT` 120 | - `CY_RTOS_ALIGNMENT_MASK` 121 | 122 | ## More information 123 | * [API Reference Guide](https://infineon.github.io/abstraction-rtos/html/modules.html) 124 | * [Cypress Semiconductor, an Infineon Technologies Company](http://www.cypress.com) 125 | * [Infineon GitHub](https://github.com/infineon) 126 | * [ModusToolbox™](https://www.cypress.com/products/modustoolbox-software-environment) 127 | 128 | --- 129 | © Cypress Semiconductor Corporation (an Infineon company) or an affiliate of Cypress Semiconductor Corporation, 2019-2022. 130 | --------------------------------------------------------------------------------