/* | |
FreeRTOS V8.2.0rc1 - Copyright (C) 2014 Real Time Engineers Ltd. | |
All rights reserved | |
VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION. | |
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 (version 2) as published by the | |
Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception. | |
>>! NOTE: The modification to the GPL is included to allow you to !<< | |
>>! distribute a combined work that includes FreeRTOS without being !<< | |
>>! obliged to provide the source code for proprietary components !<< | |
>>! outside of the FreeRTOS kernel. !<< | |
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. Full license text is available on the following | |
link: http://www.freertos.org/a00114.html | |
1 tab == 4 spaces! | |
*************************************************************************** | |
* * | |
* Having a problem? Start by reading the FAQ "My application does * | |
* not run, what could be wrong?". Have you defined configASSERT()? * | |
* * | |
* http://www.FreeRTOS.org/FAQHelp.html * | |
* * | |
*************************************************************************** | |
*************************************************************************** | |
* * | |
* FreeRTOS provides completely free yet professionally developed, * | |
* robust, strictly quality controlled, supported, and cross * | |
* platform software that is more than just the market leader, it * | |
* is the industry's de facto standard. * | |
* * | |
* Help yourself get started quickly while simultaneously helping * | |
* to support the FreeRTOS project by purchasing a FreeRTOS * | |
* tutorial book, reference manual, or both: * | |
* http://www.FreeRTOS.org/Documentation * | |
* * | |
*************************************************************************** | |
*************************************************************************** | |
* * | |
* Investing in training allows your team to be as productive as * | |
* possible as early as possible, lowering your overall development * | |
* cost, and enabling you to bring a more robust product to market * | |
* earlier than would otherwise be possible. Richard Barry is both * | |
* the architect and key author of FreeRTOS, and so also the world's * | |
* leading authority on what is the world's most popular real time * | |
* kernel for deeply embedded MCU designs. Obtaining your training * | |
* from Richard ensures your team will gain directly from his in-depth * | |
* product knowledge and years of usage experience. Contact Real Time * | |
* Engineers Ltd to enquire about the FreeRTOS Masterclass, presented * | |
* by Richard Barry: http://www.FreeRTOS.org/contact | |
* * | |
*************************************************************************** | |
*************************************************************************** | |
* * | |
* You are receiving this top quality software for free. Please play * | |
* fair and reciprocate by reporting any suspected issues and * | |
* participating in the community forum: * | |
* http://www.FreeRTOS.org/support * | |
* * | |
* Thank you! * | |
* * | |
*************************************************************************** | |
http://www.FreeRTOS.org - Documentation, books, training, latest versions, | |
license and Real Time Engineers Ltd. contact details. | |
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products, | |
including FreeRTOS+Trace - an indispensable productivity tool, a DOS | |
compatible FAT file system, and our tiny thread aware UDP/IP stack. | |
http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate. | |
Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS. | |
http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High | |
Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS | |
licenses offer ticketed support, indemnification and commercial middleware. | |
http://www.SafeRTOS.com - High Integrity Systems also provide a safety | |
engineered and independently SIL3 certified version for use in safety and | |
mission critical applications that require provable dependability. | |
1 tab == 4 spaces! | |
*/ | |
/* Kernel includes. */ | |
#include "FreeRTOS.h" | |
/* Machine includes */ | |
#include <tc1782.h> | |
#include <machine/intrinsics.h> | |
#include <machine/cint.h> | |
/*---------------------------------------------------------------------------*/ | |
/* | |
* This reference is required by the Save/Restore Context Macros. | |
*/ | |
extern volatile uint32_t *pxCurrentTCB; | |
/*-----------------------------------------------------------*/ | |
/* | |
* This file contains base definitions for all of the possible traps in the system. | |
* It is suggested to provide implementations for all of the traps but for | |
* the time being they simply trigger a DEBUG instruction so that it is easy | |
* to see what caused a particular trap. | |
* | |
* Trap Class 6, the SYSCALL, is used exclusively by the operating system. | |
*/ | |
/* The Trap Classes. */ | |
#define portMMU_TRAP 0 | |
#define portIPT_TRAP 1 | |
#define portIE_TRAP 2 | |
#define portCM_TRAP 3 | |
#define portSBP_TRAP 4 | |
#define portASSERT_TRAP 5 | |
#define portNMI_TRAP 7 | |
/* MMU Trap Identifications. */ | |
#define portTIN_MMU_VIRTUAL_ADDRESS_FILL 0 | |
#define portTIN_MMU_VIRTUAL_ADDRESS_PROTECTION 1 | |
/* Internal Protection Trap Identifications. */ | |
#define portTIN_IPT_PRIVILIGED_INSTRUCTION 1 | |
#define portTIN_IPT_MEMORY_PROTECTION_READ 2 | |
#define portTIN_IPT_MEMORY_PROTECTION_WRITE 3 | |
#define portTIN_IPT_MEMORY_PROTECTION_EXECUTION 4 | |
#define portTIN_IPT_MEMORY_PROTECTION_PERIPHERAL_ACCESS 5 | |
#define portTIN_IPT_MEMORY_PROTECTION_NULL_ADDRESS 6 | |
#define portTIN_IPT_MEMORY_PROTECTION_GLOBAL_REGISTER_WRITE_PROTECTION 7 | |
/* Instruction Error Trap Identifications. */ | |
#define portTIN_IE_ILLEGAL_OPCODE 1 | |
#define portTIN_IE_UNIMPLEMENTED_OPCODE 2 | |
#define portTIN_IE_INVALID_OPERAND 3 | |
#define portTIN_IE_DATA_ADDRESS_ALIGNMENT 4 | |
#define portTIN_IE_INVALID_LOCAL_MEMORY_ADDRESS 5 | |
/* Context Management Trap Identifications. */ | |
#define portTIN_CM_FREE_CONTEXT_LIST_DEPLETION 1 | |
#define portTIN_CM_CALL_DEPTH_OVERFLOW 2 | |
#define portTIN_CM_CALL_DEPTH_UNDEFLOW 3 | |
#define portTIN_CM_FREE_CONTEXT_LIST_UNDERFLOW 4 | |
#define portTIN_CM_CALL_STACK_UNDERFLOW 5 | |
#define portTIN_CM_CONTEXT_TYPE 6 | |
#define portTIN_CM_NESTING_ERROR 7 | |
/* System Bus and Peripherals Trap Identifications. */ | |
#define portTIN_SBP_PROGRAM_FETCH_SYNCHRONOUS_ERROR 1 | |
#define portTIN_SBP_DATA_ACCESS_SYNCHRONOUS_ERROR 2 | |
#define portTIN_SBP_DATA_ACCESS_ASYNCHRONOUS_ERROR 3 | |
#define portTIN_SBP_COPROCESSOR_TRAP_ASYNCHRONOUS_ERROR 4 | |
#define portTIN_SBP_PROGRAM_MEMORY_INTEGRITY_ERROR 5 | |
#define portTIN_SBP_DATA_MEMORY_INTEGRITY_ERROR 6 | |
/* Assertion Trap Identifications. */ | |
#define portTIN_ASSERT_ARITHMETIC_OVERFLOW 1 | |
#define portTIN_ASSERT_STICKY_ARITHMETIC_OVERFLOW 2 | |
/* Non-maskable Interrupt Trap Identifications. */ | |
#define portTIN_NMI_NON_MASKABLE_INTERRUPT 0 | |
/*---------------------------------------------------------------------------*/ | |
void vMMUTrap( int iTrapIdentification ) __attribute__( ( longcall, weak ) ); | |
void vInternalProtectionTrap( int iTrapIdentification ) __attribute__( ( longcall, weak ) ); | |
void vInstructionErrorTrap( int iTrapIdentification ) __attribute__( ( longcall, weak ) ); | |
void vContextManagementTrap( int iTrapIdentification ) __attribute__( ( longcall, weak ) ); | |
void vSystemBusAndPeripheralsTrap( int iTrapIdentification ) __attribute__( ( longcall, weak ) ); | |
void vAssertionTrap( int iTrapIdentification ) __attribute__( ( longcall, weak ) ); | |
void vNonMaskableInterruptTrap( int iTrapIdentification ) __attribute__( ( longcall, weak ) ); | |
/*---------------------------------------------------------------------------*/ | |
void vTrapInstallHandlers( void ) | |
{ | |
if( 0 == _install_trap_handler ( portMMU_TRAP, vMMUTrap ) ) | |
{ | |
_debug(); | |
} | |
if( 0 == _install_trap_handler ( portIPT_TRAP, vInternalProtectionTrap ) ) | |
{ | |
_debug(); | |
} | |
if( 0 == _install_trap_handler ( portIE_TRAP, vInstructionErrorTrap ) ) | |
{ | |
_debug(); | |
} | |
if( 0 == _install_trap_handler ( portCM_TRAP, vContextManagementTrap ) ) | |
{ | |
_debug(); | |
} | |
if( 0 == _install_trap_handler ( portSBP_TRAP, vSystemBusAndPeripheralsTrap ) ) | |
{ | |
_debug(); | |
} | |
if( 0 == _install_trap_handler ( portASSERT_TRAP, vAssertionTrap ) ) | |
{ | |
_debug(); | |
} | |
if( 0 == _install_trap_handler ( portNMI_TRAP, vNonMaskableInterruptTrap ) ) | |
{ | |
_debug(); | |
} | |
} | |
/*-----------------------------------------------------------*/ | |
void vMMUTrap( int iTrapIdentification ) | |
{ | |
switch( iTrapIdentification ) | |
{ | |
case portTIN_MMU_VIRTUAL_ADDRESS_FILL: | |
case portTIN_MMU_VIRTUAL_ADDRESS_PROTECTION: | |
default: | |
_debug(); | |
break; | |
} | |
} | |
/*---------------------------------------------------------------------------*/ | |
void vInternalProtectionTrap( int iTrapIdentification ) | |
{ | |
/* Deliberate fall through to default. */ | |
switch( iTrapIdentification ) | |
{ | |
case portTIN_IPT_PRIVILIGED_INSTRUCTION: | |
/* Instruction is not allowed at current execution level, eg DISABLE at User-0. */ | |
case portTIN_IPT_MEMORY_PROTECTION_READ: | |
/* Load word using invalid address. */ | |
case portTIN_IPT_MEMORY_PROTECTION_WRITE: | |
/* Store Word using invalid address. */ | |
case portTIN_IPT_MEMORY_PROTECTION_EXECUTION: | |
/* PC jumped to an address outside of the valid range. */ | |
case portTIN_IPT_MEMORY_PROTECTION_PERIPHERAL_ACCESS: | |
/* Access to a peripheral denied at current execution level. */ | |
case portTIN_IPT_MEMORY_PROTECTION_NULL_ADDRESS: | |
/* NULL Pointer. */ | |
case portTIN_IPT_MEMORY_PROTECTION_GLOBAL_REGISTER_WRITE_PROTECTION: | |
/* Tried to modify a global address pointer register. */ | |
default: | |
pxCurrentTCB[ 0 ] = _mfcr( $PCXI ); | |
_debug(); | |
break; | |
} | |
} | |
/*---------------------------------------------------------------------------*/ | |
void vInstructionErrorTrap( int iTrapIdentification ) | |
{ | |
/* Deliberate fall through to default. */ | |
switch( iTrapIdentification ) | |
{ | |
case portTIN_IE_ILLEGAL_OPCODE: | |
case portTIN_IE_UNIMPLEMENTED_OPCODE: | |
case portTIN_IE_INVALID_OPERAND: | |
case portTIN_IE_DATA_ADDRESS_ALIGNMENT: | |
case portTIN_IE_INVALID_LOCAL_MEMORY_ADDRESS: | |
default: | |
_debug(); | |
break; | |
} | |
} | |
/*---------------------------------------------------------------------------*/ | |
void vContextManagementTrap( int iTrapIdentification ) | |
{ | |
/* Deliberate fall through to default. */ | |
switch( iTrapIdentification ) | |
{ | |
case portTIN_CM_FREE_CONTEXT_LIST_DEPLETION: | |
case portTIN_CM_CALL_DEPTH_OVERFLOW: | |
case portTIN_CM_CALL_DEPTH_UNDEFLOW: | |
case portTIN_CM_FREE_CONTEXT_LIST_UNDERFLOW: | |
case portTIN_CM_CALL_STACK_UNDERFLOW: | |
case portTIN_CM_CONTEXT_TYPE: | |
case portTIN_CM_NESTING_ERROR: | |
default: | |
_debug(); | |
break; | |
} | |
} | |
/*---------------------------------------------------------------------------*/ | |
void vSystemBusAndPeripheralsTrap( int iTrapIdentification ) | |
{ | |
/* Deliberate fall through to default. */ | |
switch( iTrapIdentification ) | |
{ | |
case portTIN_SBP_PROGRAM_FETCH_SYNCHRONOUS_ERROR: | |
case portTIN_SBP_DATA_ACCESS_SYNCHRONOUS_ERROR: | |
case portTIN_SBP_DATA_ACCESS_ASYNCHRONOUS_ERROR: | |
case portTIN_SBP_COPROCESSOR_TRAP_ASYNCHRONOUS_ERROR: | |
case portTIN_SBP_PROGRAM_MEMORY_INTEGRITY_ERROR: | |
case portTIN_SBP_DATA_MEMORY_INTEGRITY_ERROR: | |
default: | |
_debug(); | |
break; | |
} | |
} | |
/*---------------------------------------------------------------------------*/ | |
void vAssertionTrap( int iTrapIdentification ) | |
{ | |
/* Deliberate fall through to default. */ | |
switch( iTrapIdentification ) | |
{ | |
case portTIN_ASSERT_ARITHMETIC_OVERFLOW: | |
case portTIN_ASSERT_STICKY_ARITHMETIC_OVERFLOW: | |
default: | |
_debug(); | |
break; | |
} | |
} | |
/*---------------------------------------------------------------------------*/ | |
void vNonMaskableInterruptTrap( int iTrapIdentification ) | |
{ | |
/* Deliberate fall through to default. */ | |
switch( iTrapIdentification ) | |
{ | |
case portTIN_NMI_NON_MASKABLE_INTERRUPT: | |
default: | |
_debug(); | |
break; | |
} | |
} | |
/*---------------------------------------------------------------------------*/ |