2 * FreeRTOS Kernel V10.4.6
3 * Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
5 * SPDX-License-Identifier: MIT
7 * Permission is hereby granted, free of charge, to any person obtaining a copy of
8 * this software and associated documentation files (the "Software"), to deal in
9 * the Software without restriction, including without limitation the rights to
10 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
11 * the Software, and to permit persons to whom the Software is furnished to do so,
12 * subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included in all
15 * copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
19 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
20 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
21 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 * https://www.FreeRTOS.org
25 * https://github.com/FreeRTOS
36 /*-----------------------------------------------------------
37 * Port specific definitions.
39 * The settings in this file configure FreeRTOS correctly for the given hardware
42 * These settings should not be altered.
43 *-----------------------------------------------------------
46 /* Type definitions. */
48 #define portFLOAT float
49 #define portDOUBLE double
51 #define portSHORT short
52 #define portSTACK_TYPE uint32_t
53 #define portBASE_TYPE long
55 typedef portSTACK_TYPE StackType_t;
56 typedef long BaseType_t;
57 typedef unsigned long UBaseType_t;
59 typedef uint32_t TickType_t;
60 #define portMAX_DELAY ( TickType_t ) 0xffffffffUL
62 /*-----------------------------------------------------------*/
64 /* Hardware specifics. */
65 #define portSTACK_GROWTH ( -1 )
66 #define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
67 #define portBYTE_ALIGNMENT 8
69 /*-----------------------------------------------------------*/
73 /* Called at the end of an ISR that can cause a context switch. */
74 #define portEND_SWITCHING_ISR( xSwitchRequired ) \
76 extern uint32_t ulPortYieldRequired; \
78 if( xSwitchRequired != pdFALSE ) \
80 ulPortYieldRequired = pdTRUE; \
84 #define portYIELD_FROM_ISR( x ) portEND_SWITCHING_ISR( x )
85 #define portYIELD() __asm volatile ( "SWI 0" ::: "memory" );
88 /*-----------------------------------------------------------
89 * Critical section control
90 *----------------------------------------------------------*/
92 extern void vPortEnterCritical( void );
93 extern void vPortExitCritical( void );
94 extern uint32_t ulPortSetInterruptMask( void );
95 extern void vPortClearInterruptMask( uint32_t ulNewMaskValue );
96 extern void vPortInstallFreeRTOSVectorTable( void );
98 /* These macros do not globally disable/enable interrupts. They do mask off
99 * interrupts that have a priority below configMAX_API_CALL_INTERRUPT_PRIORITY. */
100 #define portENTER_CRITICAL() vPortEnterCritical();
101 #define portEXIT_CRITICAL() vPortExitCritical();
102 #define portDISABLE_INTERRUPTS() ulPortSetInterruptMask()
103 #define portENABLE_INTERRUPTS() vPortClearInterruptMask( 0 )
104 #define portSET_INTERRUPT_MASK_FROM_ISR() ulPortSetInterruptMask()
105 #define portCLEAR_INTERRUPT_MASK_FROM_ISR( x ) vPortClearInterruptMask( x )
107 /*-----------------------------------------------------------*/
109 /* Task function macros as described on the FreeRTOS.org WEB site. These are
110 * not required for this port but included in case common demo code that uses these
112 #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void * pvParameters )
113 #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void * pvParameters )
115 /* Prototype of the FreeRTOS tick handler. This must be installed as the
116 * handler for whichever peripheral is used to generate the RTOS tick. */
117 void FreeRTOS_Tick_Handler( void );
119 /* Any task that uses the floating point unit MUST call vPortTaskUsesFPU()
120 * before any floating point instructions are executed. */
121 void vPortTaskUsesFPU( void );
122 #define portTASK_USES_FLOATING_POINT() vPortTaskUsesFPU()
124 #define portLOWEST_INTERRUPT_PRIORITY ( ( ( uint32_t ) configUNIQUE_INTERRUPT_PRIORITIES ) - 1UL )
125 #define portLOWEST_USABLE_INTERRUPT_PRIORITY ( portLOWEST_INTERRUPT_PRIORITY - 1UL )
127 /* Architecture specific optimisations. */
128 #ifndef configUSE_PORT_OPTIMISED_TASK_SELECTION
129 #define configUSE_PORT_OPTIMISED_TASK_SELECTION 1
132 #if configUSE_PORT_OPTIMISED_TASK_SELECTION == 1
134 /* Store/clear the ready priorities in a bit map. */
135 #define portRECORD_READY_PRIORITY( uxPriority, uxReadyPriorities ) ( uxReadyPriorities ) |= ( 1UL << ( uxPriority ) )
136 #define portRESET_READY_PRIORITY( uxPriority, uxReadyPriorities ) ( uxReadyPriorities ) &= ~( 1UL << ( uxPriority ) )
138 /*-----------------------------------------------------------*/
140 #define portGET_HIGHEST_PRIORITY( uxTopPriority, uxReadyPriorities ) uxTopPriority = ( 31 - __builtin_clz( uxReadyPriorities ) )
142 #endif /* configUSE_PORT_OPTIMISED_TASK_SELECTION */
145 void vPortValidateInterruptPriority( void );
146 #define portASSERT_IF_INTERRUPT_PRIORITY_INVALID() vPortValidateInterruptPriority()
147 #endif /* configASSERT */
149 #define portNOP() __asm volatile ( "NOP" )
157 /* The number of bits to shift for an interrupt priority is dependent on the
158 * number of bits implemented by the interrupt controller. */
159 #if configUNIQUE_INTERRUPT_PRIORITIES == 16
160 #define portPRIORITY_SHIFT 4
161 #define portMAX_BINARY_POINT_VALUE 3
162 #elif configUNIQUE_INTERRUPT_PRIORITIES == 32
163 #define portPRIORITY_SHIFT 3
164 #define portMAX_BINARY_POINT_VALUE 2
165 #elif configUNIQUE_INTERRUPT_PRIORITIES == 64
166 #define portPRIORITY_SHIFT 2
167 #define portMAX_BINARY_POINT_VALUE 1
168 #elif configUNIQUE_INTERRUPT_PRIORITIES == 128
169 #define portPRIORITY_SHIFT 1
170 #define portMAX_BINARY_POINT_VALUE 0
171 #elif configUNIQUE_INTERRUPT_PRIORITIES == 256
172 #define portPRIORITY_SHIFT 0
173 #define portMAX_BINARY_POINT_VALUE 0
174 #else /* if configUNIQUE_INTERRUPT_PRIORITIES == 16 */
175 #error Invalid configUNIQUE_INTERRUPT_PRIORITIES setting. configUNIQUE_INTERRUPT_PRIORITIES must be set to the number of unique priorities implemented by the target hardware
176 #endif /* if configUNIQUE_INTERRUPT_PRIORITIES == 16 */
178 /* Interrupt controller access addresses. */
179 #define portICCPMR_PRIORITY_MASK_OFFSET ( 0x04 )
180 #define portICCIAR_INTERRUPT_ACKNOWLEDGE_OFFSET ( 0x0C )
181 #define portICCEOIR_END_OF_INTERRUPT_OFFSET ( 0x10 )
182 #define portICCBPR_BINARY_POINT_OFFSET ( 0x08 )
183 #define portICCRPR_RUNNING_PRIORITY_OFFSET ( 0x14 )
185 #define portINTERRUPT_CONTROLLER_CPU_INTERFACE_ADDRESS ( configINTERRUPT_CONTROLLER_BASE_ADDRESS + configINTERRUPT_CONTROLLER_CPU_INTERFACE_OFFSET )
186 #define portICCPMR_PRIORITY_MASK_REGISTER ( *( ( volatile uint32_t * ) ( portINTERRUPT_CONTROLLER_CPU_INTERFACE_ADDRESS + portICCPMR_PRIORITY_MASK_OFFSET ) ) )
187 #define portICCIAR_INTERRUPT_ACKNOWLEDGE_REGISTER_ADDRESS ( portINTERRUPT_CONTROLLER_CPU_INTERFACE_ADDRESS + portICCIAR_INTERRUPT_ACKNOWLEDGE_OFFSET )
188 #define portICCEOIR_END_OF_INTERRUPT_REGISTER_ADDRESS ( portINTERRUPT_CONTROLLER_CPU_INTERFACE_ADDRESS + portICCEOIR_END_OF_INTERRUPT_OFFSET )
189 #define portICCPMR_PRIORITY_MASK_REGISTER_ADDRESS ( portINTERRUPT_CONTROLLER_CPU_INTERFACE_ADDRESS + portICCPMR_PRIORITY_MASK_OFFSET )
190 #define portICCBPR_BINARY_POINT_REGISTER ( *( ( const volatile uint32_t * ) ( portINTERRUPT_CONTROLLER_CPU_INTERFACE_ADDRESS + portICCBPR_BINARY_POINT_OFFSET ) ) )
191 #define portICCRPR_RUNNING_PRIORITY_REGISTER ( *( ( const volatile uint32_t * ) ( portINTERRUPT_CONTROLLER_CPU_INTERFACE_ADDRESS + portICCRPR_RUNNING_PRIORITY_OFFSET ) ) )
193 #define portMEMORY_BARRIER() __asm volatile ( "" ::: "memory" )
195 #endif /* PORTMACRO_H */