mirror of
https://github.com/FreeRTOS/FreeRTOS-Kernel.git
synced 2025-04-19 21:11:57 -04:00
Revert formatting on SDCC ports (#885)
Co-authored-by: Rahul Kar <118818625+kar-rahul-aws@users.noreply.github.com> Co-authored-by: Gaurav-Aggarwal-AWS <33462878+aggarg@users.noreply.github.com>
This commit is contained in:
parent
9a2ce912ff
commit
96cdeaa725
|
@ -53,19 +53,19 @@
|
|||
#define portCLEAR_INTERRUPT_FLAG() TMR2CN &= ~0x80;
|
||||
|
||||
/* Used during a context switch to store the size of the stack being copied
|
||||
* to or from XRAM. */
|
||||
to or from XRAM. */
|
||||
data static uint8_t ucStackBytes;
|
||||
|
||||
/* Used during a context switch to point to the next byte in XRAM from/to which
|
||||
* a RAM byte is to be copied. */
|
||||
a RAM byte is to be copied. */
|
||||
xdata static StackType_t * data pxXRAMStack;
|
||||
|
||||
/* Used during a context switch to point to the next byte in RAM from/to which
|
||||
* an XRAM byte is to be copied. */
|
||||
an XRAM byte is to be copied. */
|
||||
data static StackType_t * data pxRAMStack;
|
||||
|
||||
/* We require the address of the pxCurrentTCB variable, but don't want to know
|
||||
* any details of its type. */
|
||||
any details of its type. */
|
||||
typedef void TCB_t;
|
||||
extern volatile TCB_t * volatile pxCurrentTCB;
|
||||
|
||||
|
@ -76,7 +76,6 @@ extern volatile TCB_t * volatile pxCurrentTCB;
|
|||
static void prvSetupTimerInterrupt( void );
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/*
|
||||
* Macro that copies the current stack from internal RAM to XRAM. This is
|
||||
* required as the 8051 only contains enough internal RAM for a single stack,
|
||||
|
@ -85,23 +84,23 @@ static void prvSetupTimerInterrupt( void );
|
|||
#define portCOPY_STACK_TO_XRAM() \
|
||||
{ \
|
||||
/* pxCurrentTCB points to a TCB which itself points to the location into \
|
||||
* which the first stack byte should be copied. Set pxXRAMStack to point \
|
||||
* to the location into which the first stack byte is to be copied. */ \
|
||||
which the first stack byte should be copied. Set pxXRAMStack to point \
|
||||
to the location into which the first stack byte is to be copied. */ \
|
||||
pxXRAMStack = ( xdata StackType_t * ) *( ( xdata StackType_t ** ) pxCurrentTCB ); \
|
||||
\
|
||||
/* Set pxRAMStack to point to the first byte to be coped from the stack. */ \
|
||||
pxRAMStack = ( data StackType_t * data ) configSTACK_START; \
|
||||
\
|
||||
/* Calculate the size of the stack we are about to copy from the current \
|
||||
* stack pointer value. */ \
|
||||
stack pointer value. */ \
|
||||
ucStackBytes = SP - ( configSTACK_START - 1 ); \
|
||||
\
|
||||
/* Before starting to copy the stack, store the calculated stack size so \
|
||||
* the stack can be restored when the task is resumed. */ \
|
||||
the stack can be restored when the task is resumed. */ \
|
||||
*pxXRAMStack = ucStackBytes; \
|
||||
\
|
||||
/* Copy each stack byte in turn. pxXRAMStack is incremented first as we \
|
||||
* have already stored the stack size into XRAM. */ \
|
||||
have already stored the stack size into XRAM. */ \
|
||||
while( ucStackBytes ) \
|
||||
{ \
|
||||
pxXRAMStack++; \
|
||||
|
@ -119,12 +118,12 @@ static void prvSetupTimerInterrupt( void );
|
|||
#define portCOPY_XRAM_TO_STACK() \
|
||||
{ \
|
||||
/* Setup the pointers as per portCOPY_STACK_TO_XRAM(), but this time to \
|
||||
* copy the data back out of XRAM and into the stack. */ \
|
||||
copy the data back out of XRAM and into the stack. */ \
|
||||
pxXRAMStack = ( xdata StackType_t * ) *( ( xdata StackType_t ** ) pxCurrentTCB ); \
|
||||
pxRAMStack = ( data StackType_t * data ) ( configSTACK_START - 1 ); \
|
||||
\
|
||||
/* The first value stored in XRAM was the size of the stack - i.e. the \
|
||||
* number of bytes we need to copy back. */ \
|
||||
number of bytes we need to copy back. */ \
|
||||
ucStackBytes = pxXRAMStack[ 0 ]; \
|
||||
\
|
||||
/* Copy the required number of bytes back into the stack. */ \
|
||||
|
@ -149,7 +148,7 @@ static void prvSetupTimerInterrupt( void );
|
|||
{ \
|
||||
_asm \
|
||||
/* Push ACC first, as when restoring the context it must be restored \
|
||||
* last (it is used to set the IE register). */ \
|
||||
last (it is used to set the IE register). */ \
|
||||
push ACC \
|
||||
/* Store the IE register then disable interrupts. */ \
|
||||
push IE \
|
||||
|
@ -195,8 +194,8 @@ static void prvSetupTimerInterrupt( void );
|
|||
pop DPH \
|
||||
pop DPL \
|
||||
/* The next byte of the stack is the IE register. Only the global \
|
||||
* enable bit forms part of the task context. Pop off the IE then set \
|
||||
* the global enable bit to match that of the stored IE register. */ \
|
||||
enable bit forms part of the task context. Pop off the IE then set \
|
||||
the global enable bit to match that of the stored IE register. */ \
|
||||
pop ACC \
|
||||
JB ACC.7,0098$ \
|
||||
CLR IE.7 \
|
||||
|
@ -214,9 +213,7 @@ static void prvSetupTimerInterrupt( void );
|
|||
/*
|
||||
* See header file for description.
|
||||
*/
|
||||
StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack,
|
||||
TaskFunction_t pxCode,
|
||||
void * pvParameters )
|
||||
StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t pxCode, void *pvParameters )
|
||||
{
|
||||
uint32_t ulAddress;
|
||||
StackType_t *pxStartOfStack;
|
||||
|
@ -226,19 +223,19 @@ StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack,
|
|||
pxTopOfStack++;
|
||||
|
||||
/* Place a few bytes of known values on the bottom of the stack.
|
||||
* This is just useful for debugging and can be uncommented if required.
|
||||
This is just useful for debugging and can be uncommented if required.
|
||||
*pxTopOfStack = 0x11;
|
||||
* pxTopOfStack++;
|
||||
pxTopOfStack++;
|
||||
*pxTopOfStack = 0x22;
|
||||
* pxTopOfStack++;
|
||||
pxTopOfStack++;
|
||||
*pxTopOfStack = 0x33;
|
||||
* pxTopOfStack++;
|
||||
pxTopOfStack++;
|
||||
*/
|
||||
|
||||
/* Simulate how the stack would look after a call to the scheduler tick
|
||||
* ISR.
|
||||
*
|
||||
* The return address that would have been pushed by the MCU. */
|
||||
ISR.
|
||||
|
||||
The return address that would have been pushed by the MCU. */
|
||||
ulAddress = ( uint32_t ) pxCode;
|
||||
*pxTopOfStack = ( StackType_t ) ulAddress;
|
||||
ulAddress >>= 8;
|
||||
|
@ -255,7 +252,7 @@ StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack,
|
|||
pxTopOfStack++;
|
||||
|
||||
/* The function parameters will be passed in the DPTR and B register as
|
||||
* a three byte generic pointer is used. */
|
||||
a three byte generic pointer is used. */
|
||||
ulAddress = ( uint32_t ) pvParameters;
|
||||
*pxTopOfStack = ( StackType_t ) ulAddress; /* DPL */
|
||||
ulAddress >>= 8;
|
||||
|
@ -288,13 +285,13 @@ StackType_t * pxPortInitialiseStack( StackType_t * pxTopOfStack,
|
|||
*pxTopOfStack = 0xbb; /* BP */
|
||||
|
||||
/* Dont increment the stack size here as we don't want to include
|
||||
* the stack size byte as part of the stack size count.
|
||||
*
|
||||
* Finally we place the stack size at the beginning. */
|
||||
the stack size byte as part of the stack size count.
|
||||
|
||||
Finally we place the stack size at the beginning. */
|
||||
*pxStartOfStack = ( StackType_t ) ( pxTopOfStack - pxStartOfStack );
|
||||
|
||||
/* Unlike most ports, we return the start of the stack as this is where the
|
||||
* size of the stack is stored. */
|
||||
size of the stack is stored. */
|
||||
return pxStartOfStack;
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
@ -308,11 +305,11 @@ BaseType_t xPortStartScheduler( void )
|
|||
prvSetupTimerInterrupt();
|
||||
|
||||
/* Make sure we start with the expected SFR page. This line should not
|
||||
* really be required. */
|
||||
really be required. */
|
||||
SFRPAGE = 0;
|
||||
|
||||
/* Copy the stack for the first task to execute from XRAM into the stack,
|
||||
* restore the task context from the new stack, then start running the task. */
|
||||
restore the task context from the new stack, then start running the task. */
|
||||
portCOPY_XRAM_TO_STACK();
|
||||
portRESTORE_CONTEXT();
|
||||
|
||||
|
@ -334,11 +331,11 @@ void vPortEndScheduler( void )
|
|||
void vPortYield( void ) _naked
|
||||
{
|
||||
/* Save the execution context onto the stack, then copy the entire stack
|
||||
* to XRAM. This is necessary as the internal RAM is only large enough to
|
||||
* hold one stack, and we want one per task.
|
||||
*
|
||||
* PERFORMANCE COULD BE IMPROVED BY ONLY COPYING TO XRAM IF A TASK SWITCH
|
||||
* IS REQUIRED. */
|
||||
to XRAM. This is necessary as the internal RAM is only large enough to
|
||||
hold one stack, and we want one per task.
|
||||
|
||||
PERFORMANCE COULD BE IMPROVED BY ONLY COPYING TO XRAM IF A TASK SWITCH
|
||||
IS REQUIRED. */
|
||||
portSAVE_CONTEXT();
|
||||
portCOPY_STACK_TO_XRAM();
|
||||
|
||||
|
@ -346,7 +343,7 @@ void vPortYield( void ) _naked
|
|||
vTaskSwitchContext();
|
||||
|
||||
/* Copy the stack of the task about to execute from XRAM into RAM and
|
||||
* restore it's context ready to run on exiting. */
|
||||
restore it's context ready to run on exiting. */
|
||||
portCOPY_XRAM_TO_STACK();
|
||||
portRESTORE_CONTEXT();
|
||||
}
|
||||
|
@ -356,8 +353,8 @@ void vPortYield( void ) _naked
|
|||
void vTimer2ISR( void ) interrupt 5 _naked
|
||||
{
|
||||
/* Preemptive context switch function triggered by the timer 2 ISR.
|
||||
* This does the same as vPortYield() (see above) with the addition
|
||||
* of incrementing the RTOS tick count. */
|
||||
This does the same as vPortYield() (see above) with the addition
|
||||
of incrementing the RTOS tick count. */
|
||||
|
||||
portSAVE_CONTEXT();
|
||||
portCOPY_STACK_TO_XRAM();
|
||||
|
@ -371,16 +368,16 @@ void vPortYield( void ) _naked
|
|||
portCOPY_XRAM_TO_STACK();
|
||||
portRESTORE_CONTEXT();
|
||||
}
|
||||
#else /* if configUSE_PREEMPTION == 1 */
|
||||
#else
|
||||
void vTimer2ISR( void ) interrupt 5
|
||||
{
|
||||
/* When using the cooperative scheduler the timer 2 ISR is only
|
||||
* required to increment the RTOS tick count. */
|
||||
required to increment the RTOS tick count. */
|
||||
|
||||
xTaskIncrementTick();
|
||||
portCLEAR_INTERRUPT_FLAG();
|
||||
}
|
||||
#endif /* if configUSE_PREEMPTION == 1 */
|
||||
#endif
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void prvSetupTimerInterrupt( void )
|
||||
|
@ -397,7 +394,7 @@ static void prvSetupTimerInterrupt( void )
|
|||
/* NOTE: This uses a timer only present on 8052 architecture. */
|
||||
|
||||
/* Remember the current SFR page so we can restore it at the end of the
|
||||
* function. */
|
||||
function. */
|
||||
ucOriginalSFRPage = SFRPAGE;
|
||||
SFRPAGE = 0;
|
||||
|
||||
|
@ -416,7 +413,7 @@ static void prvSetupTimerInterrupt( void )
|
|||
IE |= portTIMER_2_INTERRUPT_ENABLE;
|
||||
|
||||
/* Interrupts are disabled when this is called so the timer can be started
|
||||
* here. */
|
||||
here. */
|
||||
TMR2CN = portENABLE_TIMER;
|
||||
|
||||
/* Restore the original SFR page. */
|
||||
|
|
|
@ -73,15 +73,13 @@ typedef unsigned char UBaseType_t;
|
|||
/*-----------------------------------------------------------*/
|
||||
|
||||
/* Critical section management. */
|
||||
#define portENTER_CRITICAL() \
|
||||
_asm \
|
||||
#define portENTER_CRITICAL() _asm \
|
||||
push ACC \
|
||||
push IE \
|
||||
_endasm; \
|
||||
EA = 0;
|
||||
|
||||
#define portEXIT_CRITICAL() \
|
||||
_asm \
|
||||
#define portEXIT_CRITICAL() _asm \
|
||||
pop ACC \
|
||||
_endasm; \
|
||||
ACC &= 0x80; \
|
||||
|
@ -105,8 +103,7 @@ void vPortYield( void ) _naked;
|
|||
#define portYIELD() vPortYield();
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
#define portNOP() \
|
||||
_asm \
|
||||
#define portNOP() _asm \
|
||||
nop \
|
||||
_endasm;
|
||||
|
||||
|
|
Loading…
Reference in a new issue