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https://github.com/FreeRTOS/FreeRTOS-Kernel.git
synced 2025-09-02 12:24:07 -04:00
Tidy up - spell check.
This commit is contained in:
Richard Barry
parent
c3e153145b
commit
5a418b56fa
4 changed files with 95 additions and 114 deletions
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@ -56,8 +56,6 @@ extern volatile tskTCB * volatile pxCurrentTCB;
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volatile unsigned portLONG ulCriticalNesting = 9999UL;
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/*-----------------------------------------------------------*/
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#pragma asm
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#macro SaveContext
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@ -104,7 +102,7 @@ volatile unsigned portLONG ulCriticalNesting = 9999UL;
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ANDCCR #0xDF ;Switch to system stack
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ST R0,@-R15 ;Store PC to system stack
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ORCCR #0x20 ;Switch back to retreive the remaining context
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ORCCR #0x20 ;Switch back to retrieve the remaining context
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LDI #_ulCriticalNesting, R0 ;Get the address of the critical nesting counter
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LD @R15+, R1 ;Get the saved critical nesting value
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@ -146,14 +144,14 @@ portSTACK_TYPE *pxPortInitialiseStack( portSTACK_TYPE *pxTopOfStack, pdTASK_CODE
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*pxTopOfStack = 0x33333333;
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pxTopOfStack--;
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/* This is a redundant push to the stack, it may be required if in some implentation of the compiler
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the parameter to the task is passed on to the stack rather than in R4 register*/
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/* This is a redundant push to the stack, it may be required if
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in some implementations of the compiler the parameter to the task
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is passed on to the stack rather than in R4 register. */
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*pxTopOfStack = (portSTACK_TYPE)(pvParameters);
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pxTopOfStack--;
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*pxTopOfStack = ( portSTACK_TYPE ) 0x00000000; /* RP */
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pxTopOfStack--;
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*pxTopOfStack = ( portSTACK_TYPE ) 0x00007777; /* R7 */
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pxTopOfStack--;
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*pxTopOfStack = ( portSTACK_TYPE ) 0x00006666; /* R6 */
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@ -161,10 +159,10 @@ portSTACK_TYPE *pxPortInitialiseStack( portSTACK_TYPE *pxTopOfStack, pdTASK_CODE
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*pxTopOfStack = ( portSTACK_TYPE ) 0x00005555; /* R5 */
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pxTopOfStack--;
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/* In the current implemention of the compiler the first
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parameter to the task(or function) is passed via R4 parameter
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to the task, hennce the pvParameters pointer is copied in R4
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regsiter. See compiler manual section 4.6.2 for more information.*/
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/* In the current implementation of the compiler the first
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parameter to the task (or function) is passed via R4 parameter
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to the task, hence the pvParameters pointer is copied into the R4
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register. See compiler manual section 4.6.2 for more information. */
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*pxTopOfStack = ( portSTACK_TYPE ) (pvParameters); /* R4 */
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pxTopOfStack--;
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*pxTopOfStack = ( portSTACK_TYPE ) 0x00003333; /* R3 */
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@ -174,8 +172,7 @@ portSTACK_TYPE *pxPortInitialiseStack( portSTACK_TYPE *pxTopOfStack, pdTASK_CODE
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*pxTopOfStack = ( portSTACK_TYPE ) 0x00001111; /* R1 */
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pxTopOfStack--;
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*pxTopOfStack = ( portSTACK_TYPE ) 0x00000001; /* R0 */
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pxTopOfStack--;
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pxTopOfStack--;
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*pxTopOfStack = ( portSTACK_TYPE ) 0x0000EEEE; /* R14 */
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pxTopOfStack--;
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*pxTopOfStack = ( portSTACK_TYPE ) 0x0000DDDD; /* R13 */
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@ -189,15 +186,14 @@ portSTACK_TYPE *pxPortInitialiseStack( portSTACK_TYPE *pxTopOfStack, pdTASK_CODE
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*pxTopOfStack = ( portSTACK_TYPE ) 0x00009999; /* R9 */
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pxTopOfStack--;
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*pxTopOfStack = ( portSTACK_TYPE ) 0x00008888; /* R8 */
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pxTopOfStack--;
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pxTopOfStack--;
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*pxTopOfStack = ( portSTACK_TYPE ) 0x11110000; /* MDH */
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pxTopOfStack--;
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*pxTopOfStack = ( portSTACK_TYPE ) 0x22220000; /* MDL */
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pxTopOfStack--;
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/* The task starts with its ulCriticalNesting variable set to 0, interrupts
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being enabled. */
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/* The task starts with its ulCriticalNesting variable set to 0,
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interrupts being enabled. */
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*pxTopOfStack = portNO_CRITICAL_NESTING;
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pxTopOfStack--;
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@ -218,18 +214,16 @@ portBASE_TYPE xPortStartScheduler( void )
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prvSetupTimerInterrupt();
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/* Restore the context of the first task that is going to run. */
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#pragma asm
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RestoreContext
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#pragma endasm
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#pragma asm
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RestoreContext
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#pragma endasm
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/* Simulate a function call end as generated by the compiler. We will now
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jump to the start of the task the context of which we have just restored. */
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jump to the start of the task the context of which we have just restored. */
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__asm(" reti ");
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/* Should not get here. */
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return pdTRUE;
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return pdFAIL;
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}
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/*-----------------------------------------------------------*/
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@ -240,26 +234,25 @@ void vPortEndScheduler( void )
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}
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/*-----------------------------------------------------------*/
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/*
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* Setup RLT0 to generate a tick interrupt.
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*/
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static void prvSetupTimerInterrupt( void )
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{
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/* The peripheral clock divided by 32 is used by the timer. */
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const unsigned portSHORT usReloadValue = ( unsigned portSHORT ) ( ( ( configPER_CLOCK_HZ / configTICK_RATE_HZ ) / 32UL ) - 1UL );
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TMCSR0_CNTE=0; /* Count Disable */
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TMCSR0_CSL=0x2; /* CLKP/32 */
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TMCSR0_MOD=0; /* Software trigger */
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TMCSR0_RELD=1; /* Reload */
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/* Setup RLT0 to generate a tick interrupt. */
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TMCSR0_CNTE = 0; /* Count Disable */
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TMCSR0_CSL = 0x2; /* CLKP/32 */
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TMCSR0_MOD = 0; /* Software trigger */
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TMCSR0_RELD = 1; /* Reload */
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TMCSR0_UF=0; /* Clear underflow flag */
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TMRLR0=usReloadValue;
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TMCSR0_INTE=1; /* Interrupt Enable */
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TMCSR0_CNTE=1; /* Count Enable */
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TMCSR0_TRG=1; /* Trigger */
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TMCSR0_UF = 0; /* Clear underflow flag */
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TMRLR0 = usReloadValue;
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TMCSR0_INTE = 1; /* Interrupt Enable */
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TMCSR0_CNTE = 1; /* Count Enable */
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TMCSR0_TRG = 1; /* Trigger */
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PORTEN = 0x3; /* Port Enable */
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PORTEN = 0x3; /* Port Enable */
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}
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/*-----------------------------------------------------------*/
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@ -268,7 +261,7 @@ const unsigned portSHORT usReloadValue = ( unsigned portSHORT ) ( ( ( configPER_
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/*
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* Tick ISR for preemptive scheduler. The tick count is incremented
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* after the context is saved. Then the context is switched if required,
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* at last the context of the task which is to be resume is restored.
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* and last the context of the task which is to be resumed is restored.
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*/
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#pragma asm
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@ -277,9 +270,7 @@ const unsigned portSHORT usReloadValue = ( unsigned portSHORT ) ( ( ( configPER_
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_ReloadTimer0_IRQHandler:
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ANDCCR #0xEF ;Disable Interrupts
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SaveContext ;Save context
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ORCCR #0x10 ;Re-enable Interrupts
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LDI #0xFFFB,R1
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@ -287,13 +278,10 @@ const unsigned portSHORT usReloadValue = ( unsigned portSHORT ) ( ( ( configPER_
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AND R1,@R0 ;Clear RLT0 interrupt flag
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CALL32 _vTaskIncrementTick,R12 ;Increment Tick
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CALL32 _vTaskSwitchContext,R12 ;Switch context if required
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ANDCCR #0xEF ;Disable Interrupts
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RestoreContext ;Restore context
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ORCCR #0x10 ;Re-enable Interrupts
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RETI
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@ -316,20 +304,18 @@ const unsigned portSHORT usReloadValue = ( unsigned portSHORT ) ( ( ( configPER_
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#endif
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/*
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* Manual context switch. We can use a __nosavereg attribute as the context
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* would be saved by PortSAVE_CONTEXT(). The context is switched and then
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* the context of the new task is restored saved.
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*/
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/*
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* Manual context switch. We can use a __nosavereg attribute as the context
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* would be saved by PortSAVE_CONTEXT(). The context is switched and then
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* the context of the new task is restored saved.
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*/
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#pragma asm
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.global _vPortYieldDelayed
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_vPortYieldDelayed:
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ANDCCR #0xEF ;Disable Interrupts
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SaveContext ;Save context
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ORCCR #0x10 ;Re-enable Interrupts
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LDI #_dicr, R0
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@ -338,36 +324,31 @@ const unsigned portSHORT usReloadValue = ( unsigned portSHORT ) ( ( ( configPER_
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CALL32 _vTaskSwitchContext,R12 ;Switch context if required
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ANDCCR #0xEF ;Disable Interrupts
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RestoreContext ;Restore context
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ORCCR #0x10 ;Re-enable Interrupts
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RETI
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#pragma endasm
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/*-----------------------------------------------------------*/
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/*
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* Manual context switch. We can use a __nosavereg attribute as the context
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* would be saved by PortSAVE_CONTEXT(). The context is switched and then
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* the context of the new task is restored saved.
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*/
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/*
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* Manual context switch. We can use a __nosavereg attribute as the context
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* would be saved by PortSAVE_CONTEXT(). The context is switched and then
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* the context of the new task is restored saved.
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*/
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#pragma asm
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.global _vPortYield
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_vPortYield:
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SaveContext ;Save context
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CALL32 _vTaskSwitchContext,R12 ;Switch context if required
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RestoreContext ;Restore context
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RETI
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#pragma endasm
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/*-----------------------------------------------------------*/
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void vPortEnterCritical( void )
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@ -43,7 +43,10 @@
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#ifndef PORTMACRO_H
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#define PORTMACRO_H
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/* Hardware specific includes. */
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#include "mb91467d.h"
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/* Standard includes. */
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#include <stddef.h>
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/*-----------------------------------------------------------
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@ -65,9 +68,6 @@
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#define portSTACK_TYPE unsigned portLONG
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#define portBASE_TYPE long
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/* This is required since SOFTUNE doesn't support inline directive as is. */
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#define inline
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#if( configUSE_16_BIT_TICKS == 1 )
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typedef unsigned portSHORT portTickType;
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#define portMAX_DELAY ( portTickType ) 0xffff
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@ -94,7 +94,7 @@ void vPortExitCritical( void );
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#define portNOP() __asm( " nop " );
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/*-----------------------------------------------------------*/
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/* portYIELD() uses SW interrupt */
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/* portYIELD() uses a SW interrupt */
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#define portYIELD() __asm( " INT #40H " );
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/* portYIELD_FROM_ISR() uses delayed interrupt */
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@ -107,5 +107,8 @@ void vPortExitCritical( void );
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#define portMINIMAL_STACK_SIZE configMINIMAL_STACK_SIZE
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/* Remove the inline statement from within the kernel code. */
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#define inline
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#endif /* PORTMACRO_H */
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