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More work in progress on NEC port and demo.

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This commit is contained in:
Richard Barry 2009-01-26 17:29:01 +00:00
parent d811a00690
commit cadd182942
3 changed files with 235 additions and 29 deletions
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171
Source/portable/IAR/V850ES_Fx3/ISR_Support.h Normal file
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@ -0,0 +1,171 @@
/*
FreeRTOS.org V5.1.1 - Copyright (C) 2003-2008 Richard Barry.
This file is part of the FreeRTOS distribution.
FreeRTOS is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
FreeRTOS is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with FreeRTOS; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
A special exception to the GPL can be applied should you wish to distribute
a combined work that includes FreeRTOS, without being obliged to provide
the source code for any proprietary components. See the licensing section
of http://www.FreeRTOS.org for full details of how and when the exception
can be applied.
***************************************************************************
***************************************************************************
* *
* SAVE TIME AND MONEY! We can port FreeRTOS.org to your own hardware, *
* and even write all or part of your application on your behalf. *
* See http://www.OpenRTOS.com for details of the services we provide to *
* expedite your project. *
* *
***************************************************************************
***************************************************************************
Please ensure to read the configuration and relevant port sections of the
online documentation.
http://www.FreeRTOS.org - Documentation, latest information, license and
contact details.
http://www.SafeRTOS.com - A version that is certified for use in safety
critical systems.
http://www.OpenRTOS.com - Commercial support, development, porting,
licensing and training services.
*/
EXTERN pxCurrentTCB
EXTERN usCriticalNesting
#include "FreeRTOSConfig.h"
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Context save and restore macro definitions
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
portSAVE_CONTEXT MACRO
add -0x0C,sp ; prepare stack to save necessary values
st.w lp,8[sp] ; store LP to stack
stsr 0,r31
st.w lp,4[sp] ; store EIPC to stack
stsr 1,lp
st.w lp,0[sp] ; store EIPSW to stack
#if configDATA_MODE == 1 ; Using the Tiny data model
prepare {r20,r21,r22,r23,r24,r25,r26,r27,r28,r29,r30},76,sp ; save general purpose registers
sst.w r19,72[ep]
sst.w r18,68[ep]
sst.w r17,64[ep]
sst.w r16,60[ep]
sst.w r15,56[ep]
sst.w r14,52[ep]
sst.w r13,48[ep]
sst.w r12,44[ep]
sst.w r11,40[ep]
sst.w r10,36[ep]
sst.w r9,32[ep]
sst.w r8,28[ep]
sst.w r7,24[ep]
sst.w r6,20[ep]
sst.w r5,16[ep]
sst.w r4,12[ep]
#else ; Using the Small/Large data model
prepare {r20,r21,r22,r23,r24,r26,r27,r28,r29,r30},72,sp ; save general purpose registers
sst.w r19,68[ep]
sst.w r18,64[ep]
sst.w r17,60[ep]
sst.w r16,56[ep]
sst.w r15,52[ep]
sst.w r14,48[ep]
sst.w r13,44[ep]
sst.w r12,40[ep]
sst.w r11,36[ep]
sst.w r10,32[ep]
sst.w r9,28[ep]
sst.w r8,24[ep]
sst.w r7,20[ep]
sst.w r6,16[ep]
sst.w r5,12[ep]
#endif /* configDATA_MODE */
sst.w r2,8[ep]
sst.w r1,4[ep]
MOVHI hi1(usCriticalNesting),r0,r1 ; save usCriticalNesting value to stack
ld.w lw1(usCriticalNesting)[r1],r2
sst.w r2,0[ep]
MOVHI hi1(pxCurrentTCB),r0,r1 ; save SP to top of current TCB
ld.w lw1(pxCurrentTCB)[r1],r2
st.w sp,0[r2]
ENDM
portRESTORE_CONTEXT MACRO
MOVHI hi1(pxCurrentTCB),r0,r1 ; get Stackpointer address
ld.w lw1(pxCurrentTCB)[r1],sp
MOV sp,r1
ld.w 0[r1],sp ; load stackpointer
MOV sp,ep ; set stack pointer to element pointer
sld.w 0[ep],r1 ; load usCriticalNesting value from stack
MOVHI hi1(usCriticalNesting),r0,r2
st.w r1,lw1(usCriticalNesting)[r2]
sld.w 4[ep],r1 ; restore general purpose registers
sld.w 8[ep],r2
#if configDATA_MODE == 1 ; Using Tiny data model
sld.w 12[ep],r4
sld.w 16[ep],r5
sld.w 20[ep],r6
sld.w 24[ep],r7
sld.w 28[ep],r8
sld.w 32[ep],r9
sld.w 36[ep],r10
sld.w 40[ep],r11
sld.w 44[ep],r12
sld.w 48[ep],r13
sld.w 52[ep],r14
sld.w 56[ep],r15
sld.w 60[ep],r16
sld.w 64[ep],r17
sld.w 68[ep],r18
sld.w 72[ep],r19
dispose 76,{r20,r21,r22,r23,r24,r25,r26,r27,r28,r29,r30}
#else ; Using Small/Large data model
sld.w 12[ep],r5
sld.w 16[ep],r6
sld.w 20[ep],r7
sld.w 24[ep],r8
sld.w 28[ep],r9
sld.w 32[ep],r10
sld.w 36[ep],r11
sld.w 40[ep],r12
sld.w 44[ep],r13
sld.w 48[ep],r14
sld.w 52[ep],r15
sld.w 56[ep],r16
sld.w 60[ep],r17
sld.w 64[ep],r18
sld.w 68[ep],r19
dispose 72,{r20,r21,r22,r23,r24,r26,r27,r28,r29,r30}
#endif /* configDATA_MODE */
ld.w 0[sp],lp ; restore EIPSW from stack
ldsr lp,1
ld.w 4[sp],lp ; restore EIPC from stack
ldsr lp,0
ld.w 8[sp],lp ; restore LP from stack
add 0x0C,sp ; set SP to right position
RETI
ENDM

80
Source/portable/IAR/V850ES_Fx3/portasm.s85
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@ -29,17 +29,17 @@
; ***************************************************************************
;
;------------------------------------------------------------------------------
; Note: Select the correct include files for the device used by the application.
; Note: Select the correct include files for the device used by the application.
#include "FreeRTOSConfig.h"
;------------------------------------------------------------------------------
; Functions used by scheduler
;------------------------------------------------------------------------------
;------------------------------------------------------------------------------
EXTERN vTaskSwitchContext
EXTERN vTaskIncrementTick
; Variables used by scheduler
;------------------------------------------------------------------------------
;------------------------------------------------------------------------------
EXTERN pxCurrentTCB
EXTERN usCriticalNesting
@ -49,7 +49,7 @@
PUBLIC vPortStart
; Security ID definition
;------------------------------------------------------------------------------
;------------------------------------------------------------------------------
#define CG_SECURITY0 0FFH
#define CG_SECURITY1 0FFH
#define CG_SECURITY2 0FFH
@ -84,7 +84,7 @@ MD_INTTM0EQ0 SYMBOL "MD_INTTM0EQ0"
; and the usCriticalNesting Value of the active Task onto the task stack
; saves stack pointer to the TCB
;------------------------------------------------------------------------------
portSAVE_CONTEXT MACRO
portSAVE_CONTEXT MACRO
#if configDATA_MODE == 1 ; Using the Tiny data model
prepare {r20,r21,r22,r23,r24,r25,r26,r27,r28,r29,r30},76,sp ; save general purpose registers
sst.w r19,72[ep]
@ -123,7 +123,7 @@ portSAVE_CONTEXT MACRO
#endif /* configDATA_MODE */
sst.w r2,8[ep]
sst.w r1,4[ep]
MOVHI hi1(usCriticalNesting),r0,r1 ; save usCriticalNesting value to stack
MOVHI hi1(usCriticalNesting),r0,r1 ; save usCriticalNesting value to stack
ld.w lw1(usCriticalNesting)[r1],r2
sst.w r2,0[ep]
MOVHI hi1(pxCurrentTCB),r0,r1 ; save SP to top of current TCB
@ -136,7 +136,7 @@ portSAVE_CONTEXT MACRO
; portRESTORE_CONTEXT MACRO
; Gets stack pointer from the current TCB
; Restores the context of the usCriticalNesting value and general purpose
; registers of the selected task from the task stack
; registers of the selected task from the task stack
;------------------------------------------------------------------------------
portRESTORE_CONTEXT MACRO
MOVHI hi1(pxCurrentTCB),r0,r1 ; get Stackpointer address
@ -148,7 +148,7 @@ portRESTORE_CONTEXT MACRO
MOVHI hi1(usCriticalNesting),r0,r2
st.w r1,lw1(usCriticalNesting)[r2]
sld.w 4[ep],r1 ; restore general purpose registers
sld.w 8[ep],r2
sld.w 8[ep],r2
#if configDATA_MODE == 1 ; Using Tiny data model
sld.w 12[ep],r4
sld.w 16[ep],r5
@ -184,7 +184,7 @@ portRESTORE_CONTEXT MACRO
sld.w 64[ep],r18
sld.w 68[ep],r19
dispose 72,{r20,r21,r22,r23,r24,r26,r27,r28,r29,r30}
#endif /* configDATA_MODE */
#endif /* configDATA_MODE */
ENDM
;------------------------------------------------------------------------------
@ -200,7 +200,7 @@ portRESTORE_CONTEXT MACRO
RSEG CODE:CODE
vPortStart:
portRESTORE_CONTEXT ; Restore the context of whichever task the ...
ld.w 0[sp],lp
ld.w 0[sp],lp
ldsr lp,5 ; restore PSW
DI
ld.w 4[sp],lp ; restore LP
@ -208,10 +208,10 @@ vPortStart:
ADD 0x0C,sp ; set SP to right position
EI
jmp [lp]
;------------------------------------------------------------------------------
;------------------------------------------------------------------------------
;------------------------------------------------------------------------------
; Port Yield function to check for a Task switch in the cooperative and
; Port Yield function to check for a Task switch in the cooperative and
; preemptive mode
;
; Input: NONE
@ -220,6 +220,9 @@ vPortStart:
;
; Output: NONE
;------------------------------------------------------------------------------
#if 0
RSEG CODE:CODE
vPortYield:
DI
@ -236,24 +239,50 @@ vPortYield:
ld.w 4[sp],lp ; restore PIPC
ldsr lp,0
ld.w 8[sp],lp ; restore LP
add 0x0C,sp
add 0x0C,sp
RETI
#else
RSEG CODE:CODE
vPortYield:
add -0x0C,sp ; prepare stack to save necessary values
st.w lp,8[sp] ; store LP to stack
stsr 0,r31
st.w lp,4[sp] ; store EIPC to stack
stsr 1,lp
st.w lp,0[sp] ; store EIPSW to stack
portSAVE_CONTEXT ; Save the context of the current task.
jarl vTaskSwitchContext,lp ; Call the scheduler.
portRESTORE_CONTEXT ; Restore the context of whichever task the ...
; ... scheduler decided should run.
ld.w 0[sp],lp ; restore EIPSW from stack
ldsr lp,1
ld.w 4[sp],lp ; restore EIPC from stack
ldsr lp,0
ld.w 8[sp],lp ; restore LP from stack
add 0x0C,sp ; set SP to right position
RETI
#endif
;------------------------------------------------------------------------------
;------------------------------------------------------------------------------
; Perform the necessary steps of the Tick Count Increment and Task Switch
; depending on the chosen kernel configuration
; depending on the chosen kernel configuration
;
; Input: NONE
;
; Call: ISR
; Call: ISR
;
; Output: NONE
;------------------------------------------------------------------------------
#if configUSE_PREEMPTION == 1 ; use preemptive kernel mode
MD_INTTM0EQ0:
add -0x0C,sp ; prepare stack to save necessary values
st.w lp,8[sp] ; store LP to stack
stsr 0,r31
@ -272,8 +301,8 @@ MD_INTTM0EQ0:
ld.w 8[sp],lp ; restore LP from stack
add 0x0C,sp ; set SP to right position
RETI
;------------------------------------------------------------------------------
RETI
;------------------------------------------------------------------------------
#else ; use cooperative kernel mode
MD_INTTM0EQ0:
@ -284,7 +313,7 @@ MD_INTTM0EQ0:
sld.w 0[ep],r5
sld.w 4[ep],r1
dispose 8,{lp,ep}
RETI
RETI
#endif /* configUSE_PREEMPTION */
;------------------------------------------------------------------------------
@ -296,8 +325,13 @@ MD_INTTM0EQ0:
RSEG NEAR_ID:CONST:SORT:NOROOT(2)
`?<Initializer for usCriticalNesting>`:
DW 10
;------------------------------------------------------------------------------
COMMON INTVEC:CODE:ROOT(2)
ORG 40H
`??vPortYield??INTVEC 40`:
JR vPortYield
;------------------------------------------------------------------------------
; set microcontroller security ID
COMMON INTVEC:CODE:ROOT(2)
@ -314,7 +348,7 @@ MD_INTTM0EQ0:
DB CG_SECURITY8
DB CG_SECURITY9
;------------------------------------------------------------------------------
;------------------------------------------------------------------------------
; set microcontroller option bytes
COMMON INTVEC:CODE:ROOT(2)
@ -326,5 +360,5 @@ MD_INTTM0EQ0:
DB OPT7D
DB OPT7E
DB OPT7F
END

13
Source/portable/IAR/V850ES_Fx3/portmacro.h
View file

@ -19,7 +19,7 @@
A special exception to the GPL can be applied should you wish to distribute
a combined work that includes FreeRTOS.org, without being obliged to provide
the source code for any proprietary components. See the licensing section
the source code for any proprietary components. See the licensing section
of http://www.FreeRTOS.org for full details of how and when the exception
can be applied.
@ -37,13 +37,13 @@
Please ensure to read the configuration and relevant port sections of the
online documentation.
http://www.FreeRTOS.org - Documentation, latest information, license and
http://www.FreeRTOS.org - Documentation, latest information, license and
contact details.
http://www.SafeRTOS.com - A version that is certified for use in safety
http://www.SafeRTOS.com - A version that is certified for use in safety
critical systems.
http://www.OpenRTOS.com - Commercial support, development, porting,
http://www.OpenRTOS.com - Commercial support, development, porting,
licensing and training services.
*/
@ -55,7 +55,7 @@ extern "C" {
#endif
/*-----------------------------------------------------------
* Port specific definitions.
* Port specific definitions.
*
* The settings in this file configure FreeRTOS correctly for the
* given hardware and compiler.
@ -127,7 +127,8 @@ extern void vPortYield( void );
extern void vPortStart( void );
extern void portSAVE_CONTEXT( void );
extern void portRESTORE_CONTEXT( void );
#define portYIELD() vPortYield()
//#define portYIELD() vPortYield()
#define portYIELD() __asm ( "trap 0" )
#define portNOP() __asm ( "NOP" )
/*-----------------------------------------------------------*/