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https://github.com/FreeRTOS/FreeRTOS-Kernel.git
synced 2025-05-10 23:29:02 -04:00
Update the IAR RX62N port files, which are now functional.
This commit is contained in:
Richard Barry
parent
a418d78163
commit
5c75dd907e
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@ -33,9 +33,9 @@
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FreeRTOS is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details. You should have received a copy of the GNU General Public
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License and the FreeRTOS license exception along with FreeRTOS; if not it
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can be viewed here: http://www.freertos.org/a00114.html and also obtained
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more details. You should have received a copy of the GNU General Public
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License and the FreeRTOS license exception along with FreeRTOS; if not it
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can be viewed here: http://www.freertos.org/a00114.html and also obtained
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by writing to Richard Barry, contact details for whom are available on the
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FreeRTOS WEB site.
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@ -63,7 +63,7 @@
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* the current stack state only - comparing the current top of stack value to
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* the stack limit. Setting configCHECK_FOR_STACK_OVERFLOW to greater than 1
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* will also cause the last few stack bytes to be checked to ensure the value
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* to which the bytes were set when the task was created have not been
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* to which the bytes were set when the task was created have not been
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* overwritten. Note this second test does not guarantee that an overflowed
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* stack will always be recognised.
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*/
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@ -110,7 +110,7 @@
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/* Only the current stack state is to be checked. */
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#define taskFIRST_CHECK_FOR_STACK_OVERFLOW() \
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{ \
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extern void vApplicationStackOverflowHook( xTaskHandle *pxTask, signed char *pcTaskName ); \
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extern void vApplicationStackOverflowHook( xTaskHandle *pxTask, signed char *pcTaskName ); \
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\
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/* Is the currently saved stack pointer within the stack limit? */ \
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if( pxCurrentTCB->pxTopOfStack >= pxCurrentTCB->pxEndOfStack ) \
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@ -126,8 +126,8 @@
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#define taskSECOND_CHECK_FOR_STACK_OVERFLOW() \
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{ \
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extern void vApplicationStackOverflowHook( xTaskHandle *pxTask, signed char *pcTaskName ); \
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static const unsigned char ucExpectedStackBytes[] = { tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \
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extern void vApplicationStackOverflowHook( xTaskHandle *pxTask, signed char *pcTaskName ); \
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static const unsigned char ucExpectedStackBytes[] = { tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \
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tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \
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tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \
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tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \
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@ -148,9 +148,9 @@
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#define taskSECOND_CHECK_FOR_STACK_OVERFLOW() \
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{ \
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extern void vApplicationStackOverflowHook( xTaskHandle *pxTask, signed char *pcTaskName ); \
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char *pcEndOfStack = ( char * ) pxCurrentTCB->pxEndOfStack; \
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static const unsigned char ucExpectedStackBytes[] = { tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \
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extern void vApplicationStackOverflowHook( xTaskHandle *pxTask, signed char *pcTaskName ); \
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char *pcEndOfStack = ( char * ) pxCurrentTCB->pxEndOfStack; \
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static const unsigned char ucExpectedStackBytes[] = { tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \
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tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \
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tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \
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tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \
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@ -69,8 +69,8 @@
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/* Tasks should start with interrupts enabled and in Supervisor mode, therefore
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PSW is set with U and I set, and PM and IPL clear. */
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#define portINITIAL_PSW ( ( portSTACK_TYPE ) 0x00030000 )
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#define portINITIAL_FPSW ( ( portSTACK_TYPE ) 0x00000100 )
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#define portINITIAL_PSW ( ( portSTACK_TYPE ) 0x00030000 )
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#define portINITIAL_FPSW ( ( portSTACK_TYPE ) 0x00000100 )
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/*-----------------------------------------------------------*/
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@ -188,7 +188,7 @@ extern void vApplicationSetupTimerInterrupt( void );
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}
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/*-----------------------------------------------------------*/
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#pragma vector = VECT_CMT0_CMI0
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#pragma vector = configTICK_VECTOR
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__interrupt void vTickISR( void )
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{
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/* Re-enable interrupts. */
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@ -52,134 +52,132 @@
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*/
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PUBLIC _prvStartFirstTask
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PUBLIC _vSoftwareInterruptISR
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PUBLIC ___interrupt_27
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EXTERN _pxCurrentTCB
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EXTERN _vTaskSwitchContext
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RSEG CODE:CODE(4)
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_prvStartFirstTask:
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/* When starting the scheduler there is nothing that needs moving to the
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interrupt stack because the function is not called from an interrupt.
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Just ensure the current stack is the user stack. */
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SETPSW U
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SETPSW U
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/* Obtain the location of the stack associated with which ever task
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pxCurrentTCB is currently pointing to. */
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MOV.L #_pxCurrentTCB, R15
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MOV.L [R15], R15
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MOV.L [R15], R0
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MOV.L #_pxCurrentTCB, R15
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MOV.L [R15], R15
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MOV.L [R15], R0
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/* Restore the registers from the stack of the task pointed to by
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pxCurrentTCB. */
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POP R15
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POP R15
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/* Accumulator low 32 bits. */
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MVTACLO R15
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POP R15
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MVTACLO R15
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POP R15
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/* Accumulator high 32 bits. */
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MVTACHI R15
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POP R15
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MVTACHI R15
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POP R15
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/* Floating point status word. */
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MVTC R15, FPSW
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MVTC R15, FPSW
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/* R1 to R15 - R0 is not included as it is the SP. */
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POPM R1-R15
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POPM R1-R15
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/* This pops the remaining registers. */
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RTE
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NOP
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NOP
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RTE
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NOP
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NOP
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/*-----------------------------------------------------------*/
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_vSoftwareInterruptISR:
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/* The software interrupt - overwrite the default 'weak' definition. */
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___interrupt_27:
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/* Re-enable interrupts. */
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SETPSW I
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/* Move the data that was automatically pushed onto the interrupt stack when
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the interrupt occurred from the interrupt stack to the user stack.
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R15 is saved before it is clobbered. */
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PUSH.L R15
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PUSH.L R15
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/* Read the user stack pointer. */
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MVFC USP, R15
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MVFC USP, R15
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/* Move the address down to the data being moved. */
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SUB #12, R15
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MVTC R15, USP
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SUB #12, R15
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MVTC R15, USP
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/* Copy the data across, R15, then PC, then PSW. */
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MOV.L [ R0 ], [ R15 ]
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MOV.L 4[ R0 ], 4[ R15 ]
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MOV.L 8[ R0 ], 8[ R15 ]
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MOV.L [ R0 ], [ R15 ]
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MOV.L 4[ R0 ], 4[ R15 ]
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MOV.L 8[ R0 ], 8[ R15 ]
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/* Move the interrupt stack pointer to its new correct position. */
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ADD #12, R0
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ADD #12, R0
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/* All the rest of the registers are saved directly to the user stack. */
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SETPSW U
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SETPSW U
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/* Save the rest of the general registers (R15 has been saved already). */
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PUSHM R1-R14
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PUSHM R1-R14
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/* Save the FPSW and accumulator. */
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MVFC FPSW, R15
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PUSH.L R15
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MVFACHI R15
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PUSH.L R15
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MVFC FPSW, R15
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PUSH.L R15
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MVFACHI R15
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PUSH.L R15
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/* Middle word. */
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MVFACMI R15
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MVFACMI R15
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/* Shifted left as it is restored to the low order word. */
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SHLL #16, R15
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PUSH.L R15
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SHLL #16, R15
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PUSH.L R15
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/* Save the stack pointer to the TCB. */
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MOV.L #_pxCurrentTCB, R15
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MOV.L [ R15 ], R15
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MOV.L R0, [ R15 ]
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MOV.L #_pxCurrentTCB, R15
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MOV.L [ R15 ], R15
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MOV.L R0, [ R15 ]
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/* Ensure the interrupt mask is set to the syscall priority while the kernel
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structures are being accessed. */
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MVTIPL #4
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MVTIPL #4
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/* Select the next task to run. */
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BSR.A _vTaskSwitchContext
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BSR.A _vTaskSwitchContext
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/* Reset the interrupt mask as no more data structure access is required. */
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MVTIPL #1
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MVTIPL #1
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/* Load the stack pointer of the task that is now selected as the Running
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state task from its TCB. */
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MOV.L #_pxCurrentTCB,R15
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MOV.L [ R15 ], R15
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MOV.L [ R15 ], R0
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MOV.L #_pxCurrentTCB,R15
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MOV.L [ R15 ], R15
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MOV.L [ R15 ], R0
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/* Restore the context of the new task. The PSW (Program Status Word) and
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PC will be popped by the RTE instruction. */
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POP R15
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MVTACLO R15
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POP R15
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MVTACHI R15
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POP R15
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MVTC R15, FPSW
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POPM R1-R15
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RTE
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NOP
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NOP
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/*:: i(configMAX_SYSCALL_INTERRUPT_PRIORITY), i(configKERNEL_INTERRUPT_PRIORITY)*/
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POP R15
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MVTACLO R15
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POP R15
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MVTACHI R15
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POP R15
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MVTC R15, FPSW
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POPM R1-R15
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RTE
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NOP
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NOP
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/*-----------------------------------------------------------*/
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END
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