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@@ -43,24 +43,24 @@ extern "C" {
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*/
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/* Type definitions. */
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#define portCHAR char
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#define portFLOAT float
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#define portDOUBLE double
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#define portLONG long
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#define portSHORT short
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#define portSTACK_TYPE uint32_t
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#define portBASE_TYPE long
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#define portCHAR char
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#define portFLOAT float
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#define portDOUBLE double
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#define portLONG long
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#define portSHORT short
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#define portSTACK_TYPE uint32_t
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#define portBASE_TYPE long
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typedef portSTACK_TYPE StackType_t;
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typedef long BaseType_t;
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typedef unsigned long UBaseType_t;
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typedef long BaseType_t;
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typedef unsigned long UBaseType_t;
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#if( configUSE_16_BIT_TICKS == 1 )
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typedef uint16_t TickType_t;
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#define portMAX_DELAY ( TickType_t ) 0xffff
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#if (configUSE_16_BIT_TICKS == 1)
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typedef uint16_t TickType_t;
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#define portMAX_DELAY (TickType_t)0xffff
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#else
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typedef uint32_t TickType_t;
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#define portMAX_DELAY ( TickType_t ) 0xffffffffUL
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#define portMAX_DELAY (TickType_t)0xffffffffUL
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/* 32-bit tick type on a 32-bit architecture, so reads of the tick count do
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not need to be guarded with a critical section. */
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@@ -69,52 +69,54 @@ typedef uint32_t TickType_t;
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/*-----------------------------------------------------------*/
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/* Architecture specifics. */
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#define portSTACK_GROWTH ( -1 )
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#define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
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#define portBYTE_ALIGNMENT 8
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#define portSTACK_GROWTH (-1)
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#define portTICK_PERIOD_MS ((TickType_t)1000 / configTICK_RATE_HZ)
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#define portBYTE_ALIGNMENT 8
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/*-----------------------------------------------------------*/
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/* Scheduler utilities. */
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#define portYIELD() \
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{ \
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/* Set a PendSV to request a context switch. */ \
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portNVIC_INT_CTRL_REG = portNVIC_PENDSVSET_BIT; \
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\
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/* Barriers are normally not required but do ensure the code is completely \
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within the specified behaviour for the architecture. */ \
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__asm volatile( "dsb" ::: "memory" ); \
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__asm volatile( "isb" ); \
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}
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#define portYIELD() \
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{ \
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/* Set a PendSV to request a context switch. */ \
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portNVIC_INT_CTRL_REG = portNVIC_PENDSVSET_BIT; \
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\
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/* Barriers are normally not required but do ensure the code is completely \
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within the specified behaviour for the architecture. */ \
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__asm volatile("dsb" ::: "memory"); \
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__asm volatile("isb"); \
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}
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#define portNVIC_INT_CTRL_REG ( * ( ( volatile uint32_t * ) 0xe000ed04 ) )
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#define portNVIC_PENDSVSET_BIT ( 1UL << 28UL )
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#define portEND_SWITCHING_ISR( xSwitchRequired ) if( xSwitchRequired != pdFALSE ) portYIELD()
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#define portYIELD_FROM_ISR( x ) portEND_SWITCHING_ISR( x )
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#define portNVIC_INT_CTRL_REG (*((volatile uint32_t *)0xe000ed04))
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#define portNVIC_PENDSVSET_BIT (1UL << 28UL)
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#define portEND_SWITCHING_ISR(xSwitchRequired) \
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if (xSwitchRequired != pdFALSE) \
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portYIELD()
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#define portYIELD_FROM_ISR(x) portEND_SWITCHING_ISR(x)
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/*-----------------------------------------------------------*/
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/* Critical section management. */
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extern void vPortEnterCritical(void);
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extern void vPortExitCritical(void);
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#define portSET_INTERRUPT_MASK_FROM_ISR() ulPortRaiseBASEPRI()
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#define portCLEAR_INTERRUPT_MASK_FROM_ISR(x) vPortSetBASEPRI(x)
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#define portDISABLE_INTERRUPTS() vPortRaiseBASEPRI()
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#define portENABLE_INTERRUPTS() vPortSetBASEPRI(0)
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#define portENTER_CRITICAL() vPortEnterCritical()
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#define portEXIT_CRITICAL() vPortExitCritical()
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#define portSET_INTERRUPT_MASK_FROM_ISR() ulPortRaiseBASEPRI()
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#define portCLEAR_INTERRUPT_MASK_FROM_ISR(x) vPortSetBASEPRI(x)
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#define portDISABLE_INTERRUPTS() vPortRaiseBASEPRI()
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#define portENABLE_INTERRUPTS() vPortSetBASEPRI(0)
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#define portENTER_CRITICAL() vPortEnterCritical()
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#define portEXIT_CRITICAL() vPortExitCritical()
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/*-----------------------------------------------------------*/
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/* Task function macros as described on the FreeRTOS.org WEB site. These are
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not necessary for to use this port. They are defined so the common demo files
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(which build with all the ports) will build. */
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#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
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#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
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#define portTASK_FUNCTION_PROTO(vFunction, pvParameters) void vFunction(void *pvParameters)
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#define portTASK_FUNCTION(vFunction, pvParameters) void vFunction(void *pvParameters)
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/*-----------------------------------------------------------*/
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/* Tickless idle/low power functionality. */
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#ifndef portSUPPRESS_TICKS_AND_SLEEP
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extern void vPortSuppressTicksAndSleep(TickType_t xExpectedIdleTime);
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#define portSUPPRESS_TICKS_AND_SLEEP( xExpectedIdleTime ) vPortSuppressTicksAndSleep( xExpectedIdleTime )
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#define portSUPPRESS_TICKS_AND_SLEEP(xExpectedIdleTime) vPortSuppressTicksAndSleep(xExpectedIdleTime)
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#endif
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/*-----------------------------------------------------------*/
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@@ -126,112 +128,103 @@ extern void vPortSuppressTicksAndSleep(TickType_t xExpectedIdleTime);
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#if configUSE_PORT_OPTIMISED_TASK_SELECTION == 1
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/* Generic helper function. */
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__attribute__( ( always_inline ) ) static inline uint8_t ucPortCountLeadingZeros(
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uint32_t ulBitmap) {
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uint8_t ucReturn;
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__attribute__((always_inline)) static inline uint8_t ucPortCountLeadingZeros(uint32_t ulBitmap) {
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uint8_t ucReturn;
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__asm volatile ( "clz %0, %1" : "=r" ( ucReturn ) : "r" ( ulBitmap ) : "memory" );
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return ucReturn;
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__asm volatile("clz %0, %1" : "=r"(ucReturn) : "r"(ulBitmap) : "memory");
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return ucReturn;
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}
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/* Check the configuration. */
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#if( configMAX_PRIORITIES > 32 )
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#if (configMAX_PRIORITIES > 32)
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#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.
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#endif
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/* Store/clear the ready priorities in a bit map. */
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#define portRECORD_READY_PRIORITY( uxPriority, uxReadyPriorities ) ( uxReadyPriorities ) |= ( 1UL << ( uxPriority ) )
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#define portRESET_READY_PRIORITY( uxPriority, uxReadyPriorities ) ( uxReadyPriorities ) &= ~( 1UL << ( uxPriority ) )
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#define portRECORD_READY_PRIORITY(uxPriority, uxReadyPriorities) (uxReadyPriorities) |= (1UL << (uxPriority))
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#define portRESET_READY_PRIORITY(uxPriority, uxReadyPriorities) (uxReadyPriorities) &= ~(1UL << (uxPriority))
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/*-----------------------------------------------------------*/
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#define portGET_HIGHEST_PRIORITY( uxTopPriority, uxReadyPriorities ) uxTopPriority = ( 31UL - ( uint32_t ) ucPortCountLeadingZeros( ( uxReadyPriorities ) ) )
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#define portGET_HIGHEST_PRIORITY(uxTopPriority, uxReadyPriorities) uxTopPriority = (31UL - (uint32_t)ucPortCountLeadingZeros((uxReadyPriorities)))
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#endif /* configUSE_PORT_OPTIMISED_TASK_SELECTION */
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/*-----------------------------------------------------------*/
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#ifdef configASSERT
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void vPortValidateInterruptPriority( void );
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#define portASSERT_IF_INTERRUPT_PRIORITY_INVALID() vPortValidateInterruptPriority()
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void vPortValidateInterruptPriority(void);
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#define portASSERT_IF_INTERRUPT_PRIORITY_INVALID() vPortValidateInterruptPriority()
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#endif
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/* portNOP() is not required by this port. */
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#define portNOP()
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#define portINLINE __inline
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#define portINLINE __inline
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#ifndef portFORCE_INLINE
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#define portFORCE_INLINE inline __attribute__(( always_inline))
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#define portFORCE_INLINE inline __attribute__((always_inline))
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#endif
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/*-----------------------------------------------------------*/
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portFORCE_INLINE static BaseType_t xPortIsInsideInterrupt(void) {
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uint32_t ulCurrentInterrupt;
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BaseType_t xReturn;
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uint32_t ulCurrentInterrupt;
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BaseType_t xReturn;
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/* Obtain the number of the currently executing interrupt. */
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__asm volatile( "mrs %0, ipsr" : "=r"( ulCurrentInterrupt ) :: "memory" );
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/* Obtain the number of the currently executing interrupt. */
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__asm volatile("mrs %0, ipsr" : "=r"(ulCurrentInterrupt)::"memory");
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if (ulCurrentInterrupt == 0) {
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xReturn = pdFALSE;
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} else {
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xReturn = pdTRUE;
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}
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if (ulCurrentInterrupt == 0) {
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xReturn = pdFALSE;
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} else {
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xReturn = pdTRUE;
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}
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return xReturn;
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return xReturn;
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}
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/*-----------------------------------------------------------*/
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portFORCE_INLINE static void vPortRaiseBASEPRI(void) {
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uint32_t ulNewBASEPRI;
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uint32_t ulNewBASEPRI;
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__asm volatile
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(
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" mov %0, %1 \n"
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" msr basepri, %0 \n"
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" isb \n"
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" dsb \n"
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:"=r" (ulNewBASEPRI) : "i" ( configMAX_SYSCALL_INTERRUPT_PRIORITY ) : "memory"
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);
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__asm volatile(" mov %0, %1 \n"
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" msr basepri, %0 \n"
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" isb \n"
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" dsb \n"
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: "=r"(ulNewBASEPRI)
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: "i"(configMAX_SYSCALL_INTERRUPT_PRIORITY)
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: "memory");
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}
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/*-----------------------------------------------------------*/
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portFORCE_INLINE static uint32_t ulPortRaiseBASEPRI(void) {
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uint32_t ulOriginalBASEPRI, ulNewBASEPRI;
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uint32_t ulOriginalBASEPRI, ulNewBASEPRI;
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__asm volatile
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(
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" mrs %0, basepri \n"
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" mov %1, %2 \n"
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" msr basepri, %1 \n"
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" isb \n"
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" dsb \n"
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:"=r" (ulOriginalBASEPRI), "=r" (ulNewBASEPRI) : "i" ( configMAX_SYSCALL_INTERRUPT_PRIORITY ) : "memory"
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);
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__asm volatile(" mrs %0, basepri \n"
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" mov %1, %2 \n"
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" msr basepri, %1 \n"
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" isb \n"
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" dsb \n"
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: "=r"(ulOriginalBASEPRI), "=r"(ulNewBASEPRI)
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: "i"(configMAX_SYSCALL_INTERRUPT_PRIORITY)
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: "memory");
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/* This return will not be reached but is necessary to prevent compiler
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warnings. */
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return ulOriginalBASEPRI;
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/* This return will not be reached but is necessary to prevent compiler
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warnings. */
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return ulOriginalBASEPRI;
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}
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/*-----------------------------------------------------------*/
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portFORCE_INLINE static void vPortSetBASEPRI(uint32_t ulNewMaskValue) {
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__asm volatile
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(
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" msr basepri, %0 " :: "r" ( ulNewMaskValue ) : "memory"
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);
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}
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portFORCE_INLINE static void vPortSetBASEPRI(uint32_t ulNewMaskValue) { __asm volatile(" msr basepri, %0 " ::"r"(ulNewMaskValue) : "memory"); }
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/*-----------------------------------------------------------*/
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#define portMEMORY_BARRIER() __asm volatile( "" ::: "memory" )
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#define portMEMORY_BARRIER() __asm volatile("" ::: "memory")
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#ifdef __cplusplus
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}
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#endif
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#endif /* PORTMACRO_H */
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