+++ /dev/null
-/*\r
- * FreeRTOS Kernel V10.2.0\r
- * Copyright (C) 2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.\r
- *\r
- * Permission is hereby granted, free of charge, to any person obtaining a copy of\r
- * this software and associated documentation files (the "Software"), to deal in\r
- * the Software without restriction, including without limitation the rights to\r
- * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of\r
- * the Software, and to permit persons to whom the Software is furnished to do so,\r
- * subject to the following conditions:\r
- *\r
- * The above copyright notice and this permission notice shall be included in all\r
- * copies or substantial portions of the Software.\r
- *\r
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\r
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS\r
- * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR\r
- * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER\r
- * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN\r
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\r
- *\r
- * http://www.FreeRTOS.org\r
- * http://aws.amazon.com/freertos\r
- *\r
- * 1 tab == 4 spaces!\r
- */\r
-\r
-/* Standard includes. */\r
-#include <stdlib.h>\r
-\r
-/* Scheduler includes. */\r
-#include "FreeRTOS.h"\r
-#include "task.h"\r
-\r
-#if configUSE_PORT_OPTIMISED_TASK_SELECTION == 1\r
- /* Check the configuration. */\r
- #if( configMAX_PRIORITIES > 32 )\r
- #error configUSE_PORT_OPTIMISED_TASK_SELECTION can only be set to 1 when configMAX_PRIORITIES is less than or equal to 32. It is very rare that a system requires more than 10 to 15 difference priorities as tasks that share a priority will time slice.\r
- #endif\r
-#endif /* configUSE_PORT_OPTIMISED_TASK_SELECTION */\r
-\r
-#ifndef configSETUP_TICK_INTERRUPT\r
- #error configSETUP_TICK_INTERRUPT() must be defined in FreeRTOSConfig.h to call the function that sets up the tick interrupt.\r
-#endif\r
-\r
-#ifndef configCLEAR_TICK_INTERRUPT\r
- #error configCLEAR_TICK_INTERRUPT must be defined in FreeRTOSConfig.h to clear which ever interrupt was used to generate the tick interrupt.\r
-#endif\r
-\r
-/* A critical section is exited when the critical section nesting count reaches\r
-this value. */\r
-#define portNO_CRITICAL_NESTING ( ( uint32_t ) 0 )\r
-\r
-/* Tasks are not created with a floating point context, but can be given a\r
-floating point context after they have been created. A variable is stored as\r
-part of the tasks context that holds portNO_FLOATING_POINT_CONTEXT if the task\r
-does not have an FPU context, or any other value if the task does have an FPU\r
-context. */\r
-#define portNO_FLOATING_POINT_CONTEXT ( ( StackType_t ) 0 )\r
-\r
-/* Constants required to setup the initial task context. */\r
-#define portINITIAL_SPSR ( ( StackType_t ) 0x1f ) /* System mode, ARM mode, IRQ enabled FIQ enabled. */\r
-#define portTHUMB_MODE_BIT ( ( StackType_t ) 0x20 )\r
-#define portTHUMB_MODE_ADDRESS ( 0x01UL )\r
-\r
-/* Masks all bits in the APSR other than the mode bits. */\r
-#define portAPSR_MODE_BITS_MASK ( 0x1F )\r
-\r
-/* The value of the mode bits in the APSR when the CPU is executing in user\r
-mode. */\r
-#define portAPSR_USER_MODE ( 0x10 )\r
-\r
-/* Let the user override the pre-loading of the initial LR with the address of\r
-prvTaskExitError() in case it messes up unwinding of the stack in the\r
-debugger. */\r
-#ifdef configTASK_RETURN_ADDRESS\r
- #define portTASK_RETURN_ADDRESS configTASK_RETURN_ADDRESS\r
-#else\r
- #define portTASK_RETURN_ADDRESS prvTaskExitError\r
-#endif\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-/*\r
- * Starts the first task executing. This function is necessarily written in\r
- * assembly code so is implemented in portASM.s.\r
- */\r
-extern void vPortRestoreTaskContext( void );\r
-\r
-/*\r
- * Used to catch tasks that attempt to return from their implementing function.\r
- */\r
-static void prvTaskExitError( void );\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-/* A variable is used to keep track of the critical section nesting. This\r
-variable has to be stored as part of the task context and must be initialised to\r
-a non zero value to ensure interrupts don't inadvertently become unmasked before\r
-the scheduler starts. As it is stored as part of the task context it will\r
-automatically be set to 0 when the first task is started. */\r
-volatile uint32_t ulCriticalNesting = 9999UL;\r
-\r
-/* Saved as part of the task context. If ulPortTaskHasFPUContext is non-zero then\r
-a floating point context must be saved and restored for the task. */\r
-volatile uint32_t ulPortTaskHasFPUContext = pdFALSE;\r
-\r
-/* Set to 1 to pend a context switch from an ISR. */\r
-volatile uint32_t ulPortYieldRequired = pdFALSE;\r
-\r
-/* Counts the interrupt nesting depth. A context switch is only performed if\r
-if the nesting depth is 0. */\r
-volatile uint32_t ulPortInterruptNesting = 0UL;\r
-\r
-/* Used in the asm file to clear an interrupt. */\r
-__attribute__(( used )) const uint32_t ulICCEOIR = configEOI_ADDRESS;\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-/*\r
- * See header file for description.\r
- */\r
-StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t pxCode, void *pvParameters )\r
-{\r
- /* Setup the initial stack of the task. The stack is set exactly as\r
- expected by the portRESTORE_CONTEXT() macro.\r
-\r
- The fist real value on the stack is the status register, which is set for\r
- system mode, with interrupts enabled. A few NULLs are added first to ensure\r
- GDB does not try decoding a non-existent return address. */\r
- *pxTopOfStack = ( StackType_t ) NULL;\r
- pxTopOfStack--;\r
- *pxTopOfStack = ( StackType_t ) NULL;\r
- pxTopOfStack--;\r
- *pxTopOfStack = ( StackType_t ) NULL;\r
- pxTopOfStack--;\r
- *pxTopOfStack = ( StackType_t ) portINITIAL_SPSR;\r
-\r
- if( ( ( uint32_t ) pxCode & portTHUMB_MODE_ADDRESS ) != 0x00UL )\r
- {\r
- /* The task will start in THUMB mode. */\r
- *pxTopOfStack |= portTHUMB_MODE_BIT;\r
- }\r
-\r
- pxTopOfStack--;\r
-\r
- /* Next the return address, which in this case is the start of the task. */\r
- *pxTopOfStack = ( StackType_t ) pxCode;\r
- pxTopOfStack--;\r
-\r
- /* Next all the registers other than the stack pointer. */\r
- *pxTopOfStack = ( StackType_t ) portTASK_RETURN_ADDRESS; /* R14 */\r
- pxTopOfStack--;\r
- *pxTopOfStack = ( StackType_t ) 0x12121212; /* R12 */\r
- pxTopOfStack--;\r
- *pxTopOfStack = ( StackType_t ) 0x11111111; /* R11 */\r
- pxTopOfStack--;\r
- *pxTopOfStack = ( StackType_t ) 0x10101010; /* R10 */\r
- pxTopOfStack--;\r
- *pxTopOfStack = ( StackType_t ) 0x09090909; /* R9 */\r
- pxTopOfStack--;\r
- *pxTopOfStack = ( StackType_t ) 0x08080808; /* R8 */\r
- pxTopOfStack--;\r
- *pxTopOfStack = ( StackType_t ) 0x07070707; /* R7 */\r
- pxTopOfStack--;\r
- *pxTopOfStack = ( StackType_t ) 0x06060606; /* R6 */\r
- pxTopOfStack--;\r
- *pxTopOfStack = ( StackType_t ) 0x05050505; /* R5 */\r
- pxTopOfStack--;\r
- *pxTopOfStack = ( StackType_t ) 0x04040404; /* R4 */\r
- pxTopOfStack--;\r
- *pxTopOfStack = ( StackType_t ) 0x03030303; /* R3 */\r
- pxTopOfStack--;\r
- *pxTopOfStack = ( StackType_t ) 0x02020202; /* R2 */\r
- pxTopOfStack--;\r
- *pxTopOfStack = ( StackType_t ) 0x01010101; /* R1 */\r
- pxTopOfStack--;\r
- *pxTopOfStack = ( StackType_t ) pvParameters; /* R0 */\r
- pxTopOfStack--;\r
-\r
- /* The task will start with a critical nesting count of 0 as interrupts are\r
- enabled. */\r
- *pxTopOfStack = portNO_CRITICAL_NESTING;\r
- pxTopOfStack--;\r
-\r
- /* The task will start without a floating point context. A task that uses\r
- the floating point hardware must call vPortTaskUsesFPU() before executing\r
- any floating point instructions. */\r
- *pxTopOfStack = portNO_FLOATING_POINT_CONTEXT;\r
-\r
- return pxTopOfStack;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-static void prvTaskExitError( void )\r
-{\r
- /* A function that implements a task must not exit or attempt to return to\r
- its caller as there is nothing to return to. If a task wants to exit it\r
- should instead call vTaskDelete( NULL ).\r
-\r
- Artificially force an assert() to be triggered if configASSERT() is\r
- defined, then stop here so application writers can catch the error. */\r
- configASSERT( ulPortInterruptNesting == ~0UL );\r
- portDISABLE_INTERRUPTS();\r
- for( ;; );\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-BaseType_t xPortStartScheduler( void )\r
-{\r
-uint32_t ulAPSR;\r
-\r
- /* Only continue if the CPU is not in User mode. The CPU must be in a\r
- Privileged mode for the scheduler to start. */\r
- __asm volatile ( "MRS %0, APSR" : "=r" ( ulAPSR ) );\r
- ulAPSR &= portAPSR_MODE_BITS_MASK;\r
- configASSERT( ulAPSR != portAPSR_USER_MODE );\r
-\r
- if( ulAPSR != portAPSR_USER_MODE )\r
- {\r
- /* Start the timer that generates the tick ISR. */\r
- portDISABLE_INTERRUPTS();\r
- configSETUP_TICK_INTERRUPT();\r
-\r
- /* Start the first task executing. */\r
- vPortRestoreTaskContext();\r
- }\r
-\r
- /* Will only get here if vTaskStartScheduler() was called with the CPU in\r
- a non-privileged mode or the binary point register was not set to its lowest\r
- possible value. prvTaskExitError() is referenced to prevent a compiler\r
- warning about it being defined but not referenced in the case that the user\r
- defines their own exit address. */\r
- ( void ) prvTaskExitError;\r
- return 0;\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-void vPortEndScheduler( void )\r
-{\r
- /* Not implemented in ports where there is nothing to return to.\r
- Artificially force an assert. */\r
- configASSERT( ulCriticalNesting == 1000UL );\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-void vPortEnterCritical( void )\r
-{\r
- portDISABLE_INTERRUPTS();\r
-\r
- /* Now interrupts are disabled ulCriticalNesting can be accessed\r
- directly. Increment ulCriticalNesting to keep a count of how many times\r
- portENTER_CRITICAL() has been called. */\r
- ulCriticalNesting++;\r
-\r
- /* This is not the interrupt safe version of the enter critical function so\r
- assert() if it is being called from an interrupt context. Only API\r
- functions that end in "FromISR" can be used in an interrupt. Only assert if\r
- the critical nesting count is 1 to protect against recursive calls if the\r
- assert function also uses a critical section. */\r
- if( ulCriticalNesting == 1 )\r
- {\r
- configASSERT( ulPortInterruptNesting == 0 );\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-void vPortExitCritical( void )\r
-{\r
- if( ulCriticalNesting > portNO_CRITICAL_NESTING )\r
- {\r
- /* Decrement the nesting count as the critical section is being\r
- exited. */\r
- ulCriticalNesting--;\r
-\r
- /* If the nesting level has reached zero then all interrupt\r
- priorities must be re-enabled. */\r
- if( ulCriticalNesting == portNO_CRITICAL_NESTING )\r
- {\r
- /* Critical nesting has reached zero so all interrupt priorities\r
- should be unmasked. */\r
- portENABLE_INTERRUPTS();\r
- }\r
- }\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-void FreeRTOS_Tick_Handler( void )\r
-{\r
-uint32_t ulInterruptStatus;\r
-\r
- ulInterruptStatus = portSET_INTERRUPT_MASK_FROM_ISR();\r
-\r
- /* Increment the RTOS tick. */\r
- if( xTaskIncrementTick() != pdFALSE )\r
- {\r
- ulPortYieldRequired = pdTRUE;\r
- }\r
-\r
- portCLEAR_INTERRUPT_MASK_FROM_ISR( ulInterruptStatus );\r
-\r
- configCLEAR_TICK_INTERRUPT();\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-void vPortTaskUsesFPU( void )\r
-{\r
-#if configFPU == 1\r
-uint32_t ulInitialFPSCR = 0;\r
-\r
- /* A task is registering the fact that it needs an FPU context. Set the\r
- FPU flag (which is saved as part of the task context). */\r
- ulPortTaskHasFPUContext = pdTRUE;\r
-\r
- /* Initialise the floating point status register. */\r
- __asm volatile ( "FMXR FPSCR, %0" :: "r" (ulInitialFPSCR) );\r
-#else\r
- /* If FreeRTOS was built without FPU support but a task is using the FPU, we have a problem */\r
- configASSERT( 0 );\r
-#endif\r
-}\r
-/*-----------------------------------------------------------*/\r
-\r
-\r
+++ /dev/null
-/*\r
- * FreeRTOS Kernel V10.2.0\r
- * Copyright (C) 2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.\r
- *\r
- * Permission is hereby granted, free of charge, to any person obtaining a copy of\r
- * this software and associated documentation files (the "Software"), to deal in\r
- * the Software without restriction, including without limitation the rights to\r
- * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of\r
- * the Software, and to permit persons to whom the Software is furnished to do so,\r
- * subject to the following conditions:\r
- *\r
- * The above copyright notice and this permission notice shall be included in all\r
- * copies or substantial portions of the Software.\r
- *\r
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\r
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS\r
- * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR\r
- * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER\r
- * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN\r
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\r
- *\r
- * http://www.FreeRTOS.org\r
- * http://aws.amazon.com/freertos\r
- *\r
- * 1 tab == 4 spaces!\r
- */\r
-\r
- .text\r
- .arm\r
-\r
- .set SYS_MODE, 0x1f\r
- .set SVC_MODE, 0x13\r
- .set IRQ_MODE, 0x12\r
-\r
- /* Variables and functions. */\r
- .extern ulMaxAPIPriorityMask\r
- .extern _freertos_vector_table\r
- .extern pxCurrentTCB\r
- .extern vTaskSwitchContext\r
- .extern vApplicationIRQHandler\r
- .extern ulPortInterruptNesting\r
- .extern ulPortTaskHasFPUContext\r
- .extern ulICCEOIR\r
- .extern ulPortYieldRequired\r
-\r
- .global FreeRTOS_IRQ_Handler\r
- .global FreeRTOS_SVC_Handler\r
- .global vPortRestoreTaskContext\r
-\r
-\r
-.macro portSAVE_CONTEXT\r
-\r
- /* Save the LR and SPSR onto the system mode stack before switching to\r
- system mode to save the remaining system mode registers. */\r
- SRSDB sp!, #SYS_MODE\r
- CPS #SYS_MODE\r
- PUSH {R0-R12, R14}\r
-\r
- /* Push the critical nesting count. */\r
- LDR R2, ulCriticalNestingConst\r
- LDR R1, [R2]\r
- PUSH {R1}\r
-\r
- /* Does the task have a floating point context that needs saving? If\r
- ulPortTaskHasFPUContext is 0 then no. */\r
- LDR R2, ulPortTaskHasFPUContextConst\r
- LDR R3, [R2]\r
- CMP R3, #0\r
-\r
-#if configFPU == 1\r
- /* Save the floating point context, if any. */\r
- FMRXNE R1, FPSCR\r
- VPUSHNE {D0-D15}\r
-#if configFPU_D32 == 1\r
- VPUSHNE {D16-D31}\r
-#endif /* configFPU_D32 */\r
- PUSHNE {R1}\r
-#endif\r
-\r
- /* Save ulPortTaskHasFPUContext itself. */\r
- PUSH {R3}\r
-\r
- /* Save the stack pointer in the TCB. */\r
- LDR R0, pxCurrentTCBConst\r
- LDR R1, [R0]\r
- STR SP, [R1]\r
-\r
- .endm\r
-\r
-; /**********************************************************************/\r
-\r
-.macro portRESTORE_CONTEXT\r
-\r
- /* Set the SP to point to the stack of the task being restored. */\r
- LDR R0, pxCurrentTCBConst\r
- LDR R1, [R0]\r
- LDR SP, [R1]\r
-\r
- /* Is there a floating point context to restore? If the restored\r
- ulPortTaskHasFPUContext is zero then no. */\r
- LDR R0, ulPortTaskHasFPUContextConst\r
- POP {R1}\r
- STR R1, [R0]\r
- CMP R1, #0\r
-\r
-#if configFPU == 1\r
- /* Restore the floating point context, if any. */\r
- POPNE {R0}\r
-#if configFPU_D32 == 1\r
- VPOPNE {D16-D31}\r
-#endif /* configFPU_D32 */\r
- VPOPNE {D0-D15}\r
- VMSRNE FPSCR, R0\r
-#endif\r
-\r
- /* Restore the critical section nesting depth. */\r
- LDR R0, ulCriticalNestingConst\r
- POP {R1}\r
- STR R1, [R0]\r
-\r
- /* Restore all system mode registers other than the SP (which is already\r
- being used). */\r
- POP {R0-R12, R14}\r
-\r
- /* Return to the task code, loading CPSR on the way. */\r
- RFEIA sp!\r
-\r
- .endm\r
-\r
-\r
-\r
-\r
-/******************************************************************************\r
- * SVC handler is used to yield.\r
- *****************************************************************************/\r
-.align 4\r
-.type FreeRTOS_SVC_Handler, %function\r
-FreeRTOS_SVC_Handler:\r
- /* Save the context of the current task and select a new task to run. */\r
- portSAVE_CONTEXT\r
- LDR R0, vTaskSwitchContextConst\r
- BLX R0\r
- portRESTORE_CONTEXT\r
-\r
-\r
-/******************************************************************************\r
- * vPortRestoreTaskContext is used to start the scheduler.\r
- *****************************************************************************/\r
-.align 4\r
-.type vPortRestoreTaskContext, %function\r
-vPortRestoreTaskContext:\r
- /* Switch to system mode. */\r
- CPS #SYS_MODE\r
- portRESTORE_CONTEXT\r
-\r
-.align 4\r
-.type FreeRTOS_IRQ_Handler, %function\r
-FreeRTOS_IRQ_Handler:\r
- /* Return to the interrupted instruction. */\r
- SUB lr, lr, #4\r
-\r
- /* Push the return address and SPSR. */\r
- PUSH {lr}\r
- MRS lr, SPSR\r
- PUSH {lr}\r
-\r
- /* Change to supervisor mode to allow reentry. */\r
- CPS #0x13\r
-\r
- /* Push used registers. */\r
- PUSH {r0-r3, r12}\r
-\r
- /* Increment nesting count. r3 holds the address of ulPortInterruptNesting\r
- for future use. r1 holds the original ulPortInterruptNesting value for\r
- future use. */\r
- LDR r3, ulPortInterruptNestingConst\r
- LDR r1, [r3]\r
- ADD r0, r1, #1\r
- STR r0, [r3]\r
-\r
- /* Ensure bit 2 of the stack pointer is clear. r2 holds the bit 2 value for\r
- future use. */\r
- MOV r0, sp\r
- AND r2, r0, #4\r
- SUB sp, sp, r2\r
-\r
- /* Call the interrupt handler. */\r
- PUSH {r0-r3, lr}\r
- LDR r1, vApplicationIRQHandlerConst\r
- BLX r1\r
- POP {r0-r3, lr}\r
- ADD sp, sp, r2\r
-\r
- CPSID i\r
- DSB\r
- ISB\r
-\r
- /* Write to the EOI register. */\r
- LDR r0, ulICCEOIRConst\r
- LDR r2, [r0]\r
- STR r0, [r2]\r
-\r
- /* Restore the old nesting count. */\r
- STR r1, [r3]\r
-\r
- /* A context switch is never performed if the nesting count is not 0. */\r
- CMP r1, #0\r
- BNE exit_without_switch\r
-\r
- /* Did the interrupt request a context switch? r1 holds the address of\r
- ulPortYieldRequired and r0 the value of ulPortYieldRequired for future\r
- use. */\r
- LDR r1, ulPortYieldRequiredConst\r
- LDR r0, [r1]\r
- CMP r0, #0\r
- BNE switch_before_exit\r
-\r
-exit_without_switch:\r
- /* No context switch. Restore used registers, LR_irq and SPSR before\r
- returning. */\r
- POP {r0-r3, r12}\r
- CPS #IRQ_MODE\r
- POP {LR}\r
- MSR SPSR_cxsf, LR\r
- POP {LR}\r
- MOVS PC, LR\r
-\r
-switch_before_exit:\r
- /* A context swtich is to be performed. Clear the context switch pending\r
- flag. */\r
- MOV r0, #0\r
- STR r0, [r1]\r
-\r
- /* Restore used registers, LR-irq and SPSR before saving the context\r
- to the task stack. */\r
- POP {r0-r3, r12}\r
- CPS #IRQ_MODE\r
- POP {LR}\r
- MSR SPSR_cxsf, LR\r
- POP {LR}\r
- portSAVE_CONTEXT\r
-\r
- /* Call the function that selects the new task to execute.\r
- vTaskSwitchContext() if vTaskSwitchContext() uses LDRD or STRD\r
- instructions, or 8 byte aligned stack allocated data. LR does not need\r
- saving as a new LR will be loaded by portRESTORE_CONTEXT anyway. */\r
- LDR R0, vTaskSwitchContextConst\r
- BLX R0\r
-\r
- /* Restore the context of, and branch to, the task selected to execute\r
- next. */\r
- portRESTORE_CONTEXT\r
-\r
-ulICCEOIRConst: .word ulICCEOIR\r
-pxCurrentTCBConst: .word pxCurrentTCB\r
-ulCriticalNestingConst: .word ulCriticalNesting\r
-ulPortTaskHasFPUContextConst: .word ulPortTaskHasFPUContext\r
-vTaskSwitchContextConst: .word vTaskSwitchContext\r
-vApplicationIRQHandlerConst: .word vApplicationIRQHandler\r
-ulPortInterruptNestingConst: .word ulPortInterruptNesting\r
-ulPortYieldRequiredConst: .word ulPortYieldRequired\r
-\r
-.end\r
-\r
-\r
-\r
-\r
-\r
+++ /dev/null
-/*\r
- * FreeRTOS Kernel V10.2.0\r
- * Copyright (C) 2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.\r
- *\r
- * Permission is hereby granted, free of charge, to any person obtaining a copy of\r
- * this software and associated documentation files (the "Software"), to deal in\r
- * the Software without restriction, including without limitation the rights to\r
- * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of\r
- * the Software, and to permit persons to whom the Software is furnished to do so,\r
- * subject to the following conditions:\r
- *\r
- * The above copyright notice and this permission notice shall be included in all\r
- * copies or substantial portions of the Software.\r
- *\r
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\r
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS\r
- * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR\r
- * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER\r
- * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN\r
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\r
- *\r
- * http://www.FreeRTOS.org\r
- * http://aws.amazon.com/freertos\r
- *\r
- * 1 tab == 4 spaces!\r
- */\r
-\r
-#ifndef PORTMACRO_H\r
-#define PORTMACRO_H\r
-\r
-#ifdef __cplusplus\r
- extern "C" {\r
-#endif\r
-\r
-/*-----------------------------------------------------------\r
- * Port specific definitions.\r
- *\r
- * The settings in this file configure FreeRTOS correctly for the given hardware\r
- * and compiler.\r
- *\r
- * These settings should not be altered.\r
- *-----------------------------------------------------------\r
- */\r
-\r
-/* Type definitions. */\r
-#define portCHAR char\r
-#define portFLOAT float\r
-#define portDOUBLE double\r
-#define portLONG long\r
-#define portSHORT short\r
-#define portSTACK_TYPE uint32_t\r
-#define portBASE_TYPE long\r
-\r
-typedef portSTACK_TYPE StackType_t;\r
-typedef long BaseType_t;\r
-typedef unsigned long UBaseType_t;\r
-\r
-typedef uint32_t TickType_t;\r
-#define portMAX_DELAY ( TickType_t ) 0xffffffffUL\r
-\r
-/* 32-bit tick type on a 32-bit architecture, so reads of the tick count do\r
-not need to be guarded with a critical section. */\r
-#define portTICK_TYPE_IS_ATOMIC 1\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-/* Hardware specifics. */\r
-#define portSTACK_GROWTH ( -1 )\r
-#define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )\r
-#define portBYTE_ALIGNMENT 8\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-/* Task utilities. */\r
-\r
-/* Called at the end of an ISR that can cause a context switch. */\r
-#define portEND_SWITCHING_ISR( xSwitchRequired )\\r
-{ \\r
-extern volatile uint32_t ulPortYieldRequired; \\r
- \\r
- if( xSwitchRequired != pdFALSE ) \\r
- { \\r
- ulPortYieldRequired = pdTRUE; \\r
- } \\r
-}\r
-\r
-#define portYIELD_FROM_ISR( x ) portEND_SWITCHING_ISR( x )\r
-#define portYIELD() __asm volatile ( "SWI 0 \n" \\r
- "ISB " );\r
-\r
-\r
-/*-----------------------------------------------------------\r
- * Critical section control\r
- *----------------------------------------------------------*/\r
-\r
-extern void vPortEnterCritical( void );\r
-extern void vPortExitCritical( void );\r
-extern uint32_t ulPortSetInterruptMask( void );\r
-extern void vPortClearInterruptMask( uint32_t ulNewMaskValue );\r
-extern void vPortInstallFreeRTOSVectorTable( void );\r
-\r
-/* The I bit within the CPSR. */\r
-#define portINTERRUPT_ENABLE_BIT ( 1 << 7 )\r
-\r
-/* In the absence of a priority mask register, these functions and macros\r
-globally enable and disable interrupts. */\r
-#define portENTER_CRITICAL() vPortEnterCritical();\r
-#define portEXIT_CRITICAL() vPortExitCritical();\r
-#define portENABLE_INTERRUPTS() __asm volatile ( "CPSIE i \n" );\r
-#define portDISABLE_INTERRUPTS() __asm volatile ( "CPSID i \n" \\r
- "DSB \n" \\r
- "ISB " );\r
-\r
-__attribute__( ( always_inline ) ) static __inline uint32_t portINLINE_SET_INTERRUPT_MASK_FROM_ISR( void )\r
-{\r
-volatile uint32_t ulCPSR;\r
-\r
- __asm volatile ( "MRS %0, CPSR" : "=r" (ulCPSR) );\r
- ulCPSR &= portINTERRUPT_ENABLE_BIT;\r
- portDISABLE_INTERRUPTS();\r
- return ulCPSR;\r
-}\r
-\r
-#define portSET_INTERRUPT_MASK_FROM_ISR() portINLINE_SET_INTERRUPT_MASK_FROM_ISR()\r
-#define portCLEAR_INTERRUPT_MASK_FROM_ISR(x) if( x == 0 ) portENABLE_INTERRUPTS()\r
-\r
-/*-----------------------------------------------------------*/\r
-\r
-/* Task function macros as described on the FreeRTOS.org WEB site. These are\r
-not required for this port but included in case common demo code that uses these\r
-macros is used. */\r
-#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )\r
-#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )\r
-\r
-/* Tickless idle/low power functionality. */\r
-#ifndef portSUPPRESS_TICKS_AND_SLEEP\r
- extern void vPortSuppressTicksAndSleep( TickType_t xExpectedIdleTime );\r
- #define portSUPPRESS_TICKS_AND_SLEEP( xExpectedIdleTime ) vPortSuppressTicksAndSleep( xExpectedIdleTime )\r
-#endif\r
-\r
-/* Prototype of the FreeRTOS tick handler. This must be installed as the\r
-handler for whichever peripheral is used to generate the RTOS tick. */\r
-void FreeRTOS_Tick_Handler( void );\r
-\r
-/* Any task that uses the floating point unit MUST call vPortTaskUsesFPU()\r
-before any floating point instructions are executed. */\r
-void vPortTaskUsesFPU( void );\r
-#define portTASK_USES_FLOATING_POINT() vPortTaskUsesFPU()\r
-\r
-#define portLOWEST_INTERRUPT_PRIORITY ( ( ( uint32_t ) configUNIQUE_INTERRUPT_PRIORITIES ) - 1UL )\r
-#define portLOWEST_USABLE_INTERRUPT_PRIORITY ( portLOWEST_INTERRUPT_PRIORITY - 1UL )\r
-\r
-/* Architecture specific optimisations. */\r
-#ifndef configUSE_PORT_OPTIMISED_TASK_SELECTION\r
- #define configUSE_PORT_OPTIMISED_TASK_SELECTION 1\r
-#endif\r
-\r
-#if configUSE_PORT_OPTIMISED_TASK_SELECTION == 1\r
-\r
- /* Store/clear the ready priorities in a bit map. */\r
- #define portRECORD_READY_PRIORITY( uxPriority, uxReadyPriorities ) ( uxReadyPriorities ) |= ( 1UL << ( uxPriority ) )\r
- #define portRESET_READY_PRIORITY( uxPriority, uxReadyPriorities ) ( uxReadyPriorities ) &= ~( 1UL << ( uxPriority ) )\r
-\r
- /*-----------------------------------------------------------*/\r
-\r
- #define portGET_HIGHEST_PRIORITY( uxTopPriority, uxReadyPriorities ) uxTopPriority = ( 31UL - ( uint32_t ) __builtin_clz( uxReadyPriorities ) )\r
-\r
-#endif /* configUSE_PORT_OPTIMISED_TASK_SELECTION */\r
-\r
-#define portNOP() __asm volatile( "NOP" )\r
-#define portINLINE __inline\r
-\r
-#ifdef __cplusplus\r
- } /* extern C */\r
-#endif\r
-\r
-\r
-#endif /* PORTMACRO_H */\r
-\r
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