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Style: uncrusitfy
This commit is contained in:
Alfred Gedeon
alfred gedeon
parent
a5dbc2b1de
commit
718178c68a
406 changed files with 108795 additions and 106323 deletions
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@ -1,78 +1,96 @@
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EXTERN pxCurrentTCB
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EXTERN ulCriticalNesting
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EXTERN pxCurrentTCB
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EXTERN ulCriticalNesting
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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; Context save and restore macro definitions
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;
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Context save and restore macro definitions
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;
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portSAVE_CONTEXT MACRO
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; Push R0 as we are going to use the register.
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STMDB SP!, {R0}
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;
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Push R0 as we are going to use the register.
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STMDB SP !, { R0 }
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; Set R0 to point to the task stack pointer.
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STMDB SP, {SP}^
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NOP
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SUB SP, SP, #4
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LDMIA SP!, {R0}
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;
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Set R0 to point to the task stack pointer.
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STMDB SP, { SP } ^
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NOP
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SUB SP, SP, # 4
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LDMIA SP !, { R0 }
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; Push the return address onto the stack.
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STMDB R0!, {LR}
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;
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Push the return address onto the stack.
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STMDB R0 !, { LR }
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; Now we have saved LR we can use it instead of R0.
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MOV LR, R0
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;
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; Pop R0 so we can save it onto the system mode stack.
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LDMIA SP!, {R0}
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Now we have saved LR we can use it instead of R0.
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MOV LR, R0
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; Push all the system mode registers onto the task stack.
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STMDB LR, {R0-LR}^
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NOP
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SUB LR, LR, #60
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;
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Pop R0 so we can save it onto the system mode stack.
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LDMIA SP !, { R0 }
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; Push the SPSR onto the task stack.
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MRS R0, SPSR
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STMDB LR!, {R0}
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;
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Push all the system mode registers onto the task stack.
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STMDB LR, { R0 - LR } ^
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NOP
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SUB LR, LR, # 60
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LDR R0, =ulCriticalNesting
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LDR R0, [R0]
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STMDB LR!, {R0}
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;
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Push the SPSR onto the task stack.
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MRS R0, SPSR
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STMDB LR !, { R0 }
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; Store the new top of stack for the task.
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LDR R1, =pxCurrentTCB
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LDR R0, [R1]
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STR LR, [R0]
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LDR R0, = ulCriticalNesting
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LDR R0, [ R0 ]
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STMDB LR !, { R0 }
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ENDM
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;
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Store the new top of stack for the task.
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LDR R1, = pxCurrentTCB
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LDR R0, [ R1 ]
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STR LR, [ R0 ]
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ENDM
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portRESTORE_CONTEXT MACRO
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; Set the LR to the task stack.
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LDR R1, =pxCurrentTCB
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LDR R0, [R1]
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LDR LR, [R0]
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;
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Set the LR to the task stack.
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LDR R1, = pxCurrentTCB
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LDR R0, [ R1 ]
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LDR LR, [ R0 ]
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; The critical nesting depth is the first item on the stack.
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; Load it into the ulCriticalNesting variable.
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LDR R0, =ulCriticalNesting
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LDMFD LR!, {R1}
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STR R1, [R0]
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;
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The critical nesting depth is the first item on the stack.
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;
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Load it into the ulCriticalNesting variable.
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LDR R0, = ulCriticalNesting
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LDMFD LR !, { R1 }
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STR R1, [ R0 ]
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; Get the SPSR from the stack.
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LDMFD LR!, {R0}
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MSR SPSR_cxsf, R0
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;
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Get the SPSR from the stack.
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LDMFD LR !, { R0 }
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MSR SPSR_cxsf, R0
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; Restore all system mode registers for the task.
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LDMFD LR, {R0-R14}^
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NOP
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;
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Restore all system mode registers for the task.
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LDMFD LR, { R0 - R14 } ^
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NOP
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; Restore the return address.
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LDR LR, [LR, #+60]
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;
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Restore the return address.
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LDR LR, [ LR, # + 60 ]
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; And return - correcting the offset in the LR to obtain the
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; correct address.
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SUBS PC, LR, #4
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;
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ENDM
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And return -correcting the offset in the LR to obtain the
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;
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correct address.
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SUBS PC, LR, # 4
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ENDM
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@ -25,8 +25,8 @@
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*/
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/*-----------------------------------------------------------
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* Implementation of functions defined in portable.h for the Atmel ARM7 port.
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*----------------------------------------------------------*/
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* Implementation of functions defined in portable.h for the Atmel ARM7 port.
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*----------------------------------------------------------*/
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/* Standard includes. */
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@ -49,21 +49,21 @@
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/*-----------------------------------------------------------*/
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/* Constants required to setup the initial stack. */
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#define portINITIAL_SPSR ( ( StackType_t ) 0x1f ) /* System mode, ARM mode, interrupts enabled. */
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#define portTHUMB_MODE_BIT ( ( StackType_t ) 0x20 )
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#define portINSTRUCTION_SIZE ( ( StackType_t ) 4 )
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#define portINITIAL_SPSR ( ( StackType_t ) 0x1f ) /* System mode, ARM mode, interrupts enabled. */
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#define portTHUMB_MODE_BIT ( ( StackType_t ) 0x20 )
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#define portINSTRUCTION_SIZE ( ( StackType_t ) 4 )
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/* Constants required to setup the PIT. */
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#define port1MHz_IN_Hz ( 1000000ul )
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#define port1SECOND_IN_uS ( 1000000.0 )
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#define port1MHz_IN_Hz ( 1000000ul )
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#define port1SECOND_IN_uS ( 1000000.0 )
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/* Constants required to handle critical sections. */
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#define portNO_CRITICAL_NESTING ( ( uint32_t ) 0 )
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#define portNO_CRITICAL_NESTING ( ( uint32_t ) 0 )
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#define portINT_LEVEL_SENSITIVE 0
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#define portPIT_ENABLE ( ( uint16_t ) 0x1 << 24 )
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#define portPIT_INT_ENABLE ( ( uint16_t ) 0x1 << 25 )
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#define portINT_LEVEL_SENSITIVE 0
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#define portPIT_ENABLE ( ( uint16_t ) 0x1 << 24 )
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#define portPIT_INT_ENABLE ( ( uint16_t ) 0x1 << 25 )
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/*-----------------------------------------------------------*/
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/* Setup the PIT to generate the tick interrupts. */
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@ -73,8 +73,8 @@ static void prvSetupTimerInterrupt( void );
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static void vPortTickISR( void );
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/* ulCriticalNesting will get set to zero when the first task starts. It
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cannot be initialised to 0 as this will cause interrupts to be enabled
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during the kernel initialisation process. */
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* cannot be initialised to 0 as this will cause interrupts to be enabled
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* during the kernel initialisation process. */
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uint32_t ulCriticalNesting = ( uint32_t ) 9999;
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/*-----------------------------------------------------------*/
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@ -85,171 +85,167 @@ uint32_t ulCriticalNesting = ( uint32_t ) 9999;
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*
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* See header file for description.
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*/
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StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t pxCode, void *pvParameters )
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StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack,
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TaskFunction_t pxCode,
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void * pvParameters )
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{
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StackType_t *pxOriginalTOS;
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StackType_t * pxOriginalTOS;
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pxOriginalTOS = pxTopOfStack;
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pxOriginalTOS = pxTopOfStack;
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/* To ensure asserts in tasks.c don't fail, although in this case the assert
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is not really required. */
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pxTopOfStack--;
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/* To ensure asserts in tasks.c don't fail, although in this case the assert
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* is not really required. */
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pxTopOfStack--;
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/* Setup the initial stack of the task. The stack is set exactly as
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expected by the portRESTORE_CONTEXT() macro. */
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/* Setup the initial stack of the task. The stack is set exactly as
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* expected by the portRESTORE_CONTEXT() macro. */
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/* First on the stack is the return address - which in this case is the
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start of the task. The offset is added to make the return address appear
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as it would within an IRQ ISR. */
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*pxTopOfStack = ( StackType_t ) pxCode + portINSTRUCTION_SIZE;
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pxTopOfStack--;
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/* First on the stack is the return address - which in this case is the
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* start of the task. The offset is added to make the return address appear
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* as it would within an IRQ ISR. */
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*pxTopOfStack = ( StackType_t ) pxCode + portINSTRUCTION_SIZE;
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0xaaaaaaaa; /* R14 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) pxOriginalTOS; /* Stack used when task starts goes in R13. */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0x12121212; /* R12 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0x11111111; /* R11 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0x10101010; /* R10 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0x09090909; /* R9 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0x08080808; /* R8 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0x07070707; /* R7 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0x06060606; /* R6 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0x05050505; /* R5 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0x04040404; /* R4 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0x03030303; /* R3 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0x02020202; /* R2 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0x01010101; /* R1 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0xaaaaaaaa; /* R14 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) pxOriginalTOS; /* Stack used when task starts goes in R13. */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0x12121212; /* R12 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0x11111111; /* R11 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0x10101010; /* R10 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0x09090909; /* R9 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0x08080808; /* R8 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0x07070707; /* R7 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0x06060606; /* R6 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0x05050505; /* R5 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0x04040404; /* R4 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0x03030303; /* R3 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0x02020202; /* R2 */
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pxTopOfStack--;
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*pxTopOfStack = ( StackType_t ) 0x01010101; /* R1 */
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pxTopOfStack--;
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/* When the task starts is will expect to find the function parameter in
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R0. */
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*pxTopOfStack = ( StackType_t ) pvParameters; /* R0 */
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pxTopOfStack--;
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/* When the task starts is will expect to find the function parameter in
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* R0. */
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*pxTopOfStack = ( StackType_t ) pvParameters; /* R0 */
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pxTopOfStack--;
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/* The status register is set for system mode, with interrupts enabled. */
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*pxTopOfStack = ( StackType_t ) portINITIAL_SPSR;
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#ifdef THUMB_INTERWORK
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{
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/* We want the task to start in thumb mode. */
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*pxTopOfStack |= portTHUMB_MODE_BIT;
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}
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#endif
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pxTopOfStack--;
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/* The status register is set for system mode, with interrupts enabled. */
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*pxTopOfStack = ( StackType_t ) portINITIAL_SPSR;
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/* Interrupt flags cannot always be stored on the stack and will
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instead be stored in a variable, which is then saved as part of the
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tasks context. */
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*pxTopOfStack = portNO_CRITICAL_NESTING;
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#ifdef THUMB_INTERWORK
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{
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/* We want the task to start in thumb mode. */
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*pxTopOfStack |= portTHUMB_MODE_BIT;
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}
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#endif
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return pxTopOfStack;
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pxTopOfStack--;
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/* Interrupt flags cannot always be stored on the stack and will
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* instead be stored in a variable, which is then saved as part of the
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* tasks context. */
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*pxTopOfStack = portNO_CRITICAL_NESTING;
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return pxTopOfStack;
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}
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/*-----------------------------------------------------------*/
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BaseType_t xPortStartScheduler( void )
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{
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extern void vPortStartFirstTask( void );
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extern void vPortStartFirstTask( void );
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/* Start the timer that generates the tick ISR. Interrupts are disabled
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here already. */
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prvSetupTimerInterrupt();
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/* Start the timer that generates the tick ISR. Interrupts are disabled
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* here already. */
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prvSetupTimerInterrupt();
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/* Start the first task. */
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vPortStartFirstTask();
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/* Start the first task. */
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vPortStartFirstTask();
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/* Should not get here! */
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return 0;
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/* Should not get here! */
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return 0;
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}
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/*-----------------------------------------------------------*/
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void vPortEndScheduler( void )
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{
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/* It is unlikely that the ARM port will require this function as there
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is nothing to return to. */
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/* It is unlikely that the ARM port will require this function as there
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* is nothing to return to. */
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}
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/*-----------------------------------------------------------*/
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static __arm void vPortTickISR( void )
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{
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volatile uint32_t ulDummy;
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/* Increment the tick count - which may wake some tasks but as the
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preemptive scheduler is not being used any woken task is not given
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processor time no matter what its priority. */
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if( xTaskIncrementTick() != pdFALSE )
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{
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vTaskSwitchContext();
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}
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/* Clear the PIT interrupt. */
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ulDummy = AT91C_BASE_PITC->PITC_PIVR;
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/* To remove compiler warning. */
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( void ) ulDummy;
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/* The AIC is cleared in the asm wrapper, outside of this function. */
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volatile uint32_t ulDummy;
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|
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/* Increment the tick count - which may wake some tasks but as the
|
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* preemptive scheduler is not being used any woken task is not given
|
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* processor time no matter what its priority. */
|
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if( xTaskIncrementTick() != pdFALSE )
|
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{
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vTaskSwitchContext();
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}
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|
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/* Clear the PIT interrupt. */
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ulDummy = AT91C_BASE_PITC->PITC_PIVR;
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|
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/* To remove compiler warning. */
|
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( void ) ulDummy;
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/* The AIC is cleared in the asm wrapper, outside of this function. */
|
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}
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/*-----------------------------------------------------------*/
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static void prvSetupTimerInterrupt( void )
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{
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const uint32_t ulPeriodIn_uS = ( 1.0 / ( double ) configTICK_RATE_HZ ) * port1SECOND_IN_uS;
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const uint32_t ulPeriodIn_uS = ( 1.0 / ( double ) configTICK_RATE_HZ ) * port1SECOND_IN_uS;
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/* Setup the PIT for the required frequency. */
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PIT_Init( ulPeriodIn_uS, BOARD_MCK / port1MHz_IN_Hz );
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|
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/* Setup the PIT interrupt. */
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AIC_DisableIT( AT91C_ID_SYS );
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AIC_ConfigureIT( AT91C_ID_SYS, AT91C_AIC_PRIOR_LOWEST, vPortTickISR );
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AIC_EnableIT( AT91C_ID_SYS );
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PIT_EnableIT();
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/* Setup the PIT for the required frequency. */
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PIT_Init( ulPeriodIn_uS, BOARD_MCK / port1MHz_IN_Hz );
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/* Setup the PIT interrupt. */
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AIC_DisableIT( AT91C_ID_SYS );
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AIC_ConfigureIT( AT91C_ID_SYS, AT91C_AIC_PRIOR_LOWEST, vPortTickISR );
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AIC_EnableIT( AT91C_ID_SYS );
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PIT_EnableIT();
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}
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/*-----------------------------------------------------------*/
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void vPortEnterCritical( void )
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{
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/* Disable interrupts first! */
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__disable_irq();
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/* Disable interrupts first! */
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__disable_irq();
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/* Now interrupts are disabled ulCriticalNesting can be accessed
|
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directly. Increment ulCriticalNesting to keep a count of how many times
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portENTER_CRITICAL() has been called. */
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ulCriticalNesting++;
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/* Now interrupts are disabled ulCriticalNesting can be accessed
|
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* directly. Increment ulCriticalNesting to keep a count of how many times
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* portENTER_CRITICAL() has been called. */
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ulCriticalNesting++;
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}
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||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vPortExitCritical( void )
|
||||
{
|
||||
if( ulCriticalNesting > portNO_CRITICAL_NESTING )
|
||||
{
|
||||
/* Decrement the nesting count as we are leaving a critical section. */
|
||||
ulCriticalNesting--;
|
||||
if( ulCriticalNesting > portNO_CRITICAL_NESTING )
|
||||
{
|
||||
/* Decrement the nesting count as we are leaving a critical section. */
|
||||
ulCriticalNesting--;
|
||||
|
||||
/* If the nesting level has reached zero then interrupts should be
|
||||
re-enabled. */
|
||||
if( ulCriticalNesting == portNO_CRITICAL_NESTING )
|
||||
{
|
||||
__enable_irq();
|
||||
}
|
||||
}
|
||||
/* If the nesting level has reached zero then interrupts should be
|
||||
* re-enabled. */
|
||||
if( ulCriticalNesting == portNO_CRITICAL_NESTING )
|
||||
{
|
||||
__enable_irq();
|
||||
}
|
||||
}
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -26,13 +26,13 @@
|
|||
|
||||
|
||||
#ifndef PORTMACRO_H
|
||||
#define PORTMACRO_H
|
||||
#define PORTMACRO_H
|
||||
|
||||
#include <intrinsics.h>
|
||||
#include <intrinsics.h>
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/*-----------------------------------------------------------
|
||||
* Port specific definitions.
|
||||
|
|
@ -45,69 +45,67 @@ extern "C" {
|
|||
*/
|
||||
|
||||
/* Type definitions. */
|
||||
#define portCHAR char
|
||||
#define portFLOAT float
|
||||
#define portDOUBLE double
|
||||
#define portLONG long
|
||||
#define portSHORT short
|
||||
#define portSTACK_TYPE uint32_t
|
||||
#define portBASE_TYPE long
|
||||
#define portCHAR char
|
||||
#define portFLOAT float
|
||||
#define portDOUBLE double
|
||||
#define portLONG long
|
||||
#define portSHORT short
|
||||
#define portSTACK_TYPE uint32_t
|
||||
#define portBASE_TYPE long
|
||||
|
||||
typedef portSTACK_TYPE StackType_t;
|
||||
typedef long BaseType_t;
|
||||
typedef unsigned long UBaseType_t;
|
||||
typedef portSTACK_TYPE StackType_t;
|
||||
typedef long BaseType_t;
|
||||
typedef unsigned long UBaseType_t;
|
||||
|
||||
|
||||
#if( configUSE_16_BIT_TICKS == 1 )
|
||||
typedef uint16_t TickType_t;
|
||||
#define portMAX_DELAY ( TickType_t ) 0xffff
|
||||
#else
|
||||
typedef uint32_t TickType_t;
|
||||
#define portMAX_DELAY ( TickType_t ) 0xffffffffUL
|
||||
#endif
|
||||
#if ( configUSE_16_BIT_TICKS == 1 )
|
||||
typedef uint16_t TickType_t;
|
||||
#define portMAX_DELAY ( TickType_t ) 0xffff
|
||||
#else
|
||||
typedef uint32_t TickType_t;
|
||||
#define portMAX_DELAY ( TickType_t ) 0xffffffffUL
|
||||
#endif
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/* Hardware specifics. */
|
||||
#define portSTACK_GROWTH ( -1 )
|
||||
#define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
|
||||
#define portBYTE_ALIGNMENT 8
|
||||
#define portYIELD() asm ( "SWI 0" )
|
||||
#define portNOP() asm ( "NOP" )
|
||||
#define portSTACK_GROWTH ( -1 )
|
||||
#define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
|
||||
#define portBYTE_ALIGNMENT 8
|
||||
#define portYIELD() asm ( "SWI 0" )
|
||||
#define portNOP() asm ( "NOP" )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/* Critical section handling. */
|
||||
__arm __interwork void vPortDisableInterruptsFromThumb( void );
|
||||
__arm __interwork void vPortEnableInterruptsFromThumb( void );
|
||||
__arm __interwork void vPortEnterCritical( void );
|
||||
__arm __interwork void vPortExitCritical( void );
|
||||
__arm __interwork void vPortDisableInterruptsFromThumb( void );
|
||||
__arm __interwork void vPortEnableInterruptsFromThumb( void );
|
||||
__arm __interwork void vPortEnterCritical( void );
|
||||
__arm __interwork void vPortExitCritical( void );
|
||||
|
||||
#define portDISABLE_INTERRUPTS() __disable_irq()
|
||||
#define portENABLE_INTERRUPTS() __enable_irq()
|
||||
#define portENTER_CRITICAL() vPortEnterCritical()
|
||||
#define portEXIT_CRITICAL() vPortExitCritical()
|
||||
#define portDISABLE_INTERRUPTS() __disable_irq()
|
||||
#define portENABLE_INTERRUPTS() __enable_irq()
|
||||
#define portENTER_CRITICAL() vPortEnterCritical()
|
||||
#define portEXIT_CRITICAL() vPortExitCritical()
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/* Task utilities. */
|
||||
#define portEND_SWITCHING_ISR( xSwitchRequired ) \
|
||||
{ \
|
||||
extern void vTaskSwitchContext( void ); \
|
||||
\
|
||||
if( xSwitchRequired ) \
|
||||
{ \
|
||||
vTaskSwitchContext(); \
|
||||
} \
|
||||
}
|
||||
#define portEND_SWITCHING_ISR( xSwitchRequired ) \
|
||||
{ \
|
||||
extern void vTaskSwitchContext( void ); \
|
||||
\
|
||||
if( xSwitchRequired ) \
|
||||
{ \
|
||||
vTaskSwitchContext(); \
|
||||
} \
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
|
||||
/* Task function macros as described on the FreeRTOS.org WEB site. */
|
||||
#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void * pvParameters )
|
||||
#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void * pvParameters )
|
||||
#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void * pvParameters )
|
||||
#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void * pvParameters )
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* PORTMACRO_H */
|
||||
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue