src/inc/interrupts.h

   1 /*      interrupts.h
   2
   3         Copyright 2008 Fred Cooke
   4
   5         This file is part of the FreeEMS project.
   6
   7         FreeEMS software is free software: you can redistribute it and/or modify
   8         it under the terms of the GNU General Public License as published by
   9         the Free Software Foundation, either version 3 of the License, or
  10         (at your option) any later version.
  11
  12         FreeEMS software is distributed in the hope that it will be useful,
  13         but WITHOUT ANY WARRANTY; without even the implied warranty of
  14         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15         GNU General Public License for more details.
  16
  17         You should have received a copy of the GNU General Public License
  18         along with any FreeEMS software.  If not, see <http://www.gnu.org/licenses/>.
  19
  20         We ask that if you make any changes to this file you send them upstream to us at admin@diyefi.org
  21
  22         Thank you for choosing FreeEMS to run your engine! */
  23
  24 /* Header file multiple inclusion protection courtesy eclipse Header Template   */
  25 /* and http://gcc.gnu.org/onlinedocs/gcc-3.1.1/cpp/ C pre processor manual              */
  26 #ifndef FILE_INTERRUPTS_H_SEEN
  27 #define FILE_INTERRUPTS_H_SEEN
  28
  29
  30 /* http://www.gnu.org/software/m68hc11/m68hc11_gcc.html Section 1.4.1   */
  31 /* http://gcc.gnu.org/onlinedocs/gcc-4.0.0/gcc/Function-Attributes.html */
  32 /* http://gcc.gnu.org/onlinedocs/gcc-4.0.0/gcc/Variable-Attributes.html */
  33
  34 /* Interrupt attribute shortcut */
  35 #define INT __attribute__((interrupt))
  36
  37 /* Start and stop atomic operations (Things that we don't want interrupted half way through) */
  38 /* For certain operations we will need to prevent the process from being interrupted, operations such as */
  39 /* writing all vars to a block ready for reading and logging etc. The link below is for avrs, but goes */
  40 /* into some detail about clearing and setting interrupts during important operations. */
  41 /* http://hubbard.engr.scu.edu/embedded/avr/doc/avr-libc/avr-libc-user-manual/group__avr__interrupts.html */
  42 #define ATOMIC_START() __asm__ __volatile__ ("sei")     /* set global interrupt mask */
  43 #define ATOMIC_END() __asm__ __volatile__ ("cli")       /* clear global interrupt mask */
  44
  45 /* Interrupt vector memory management */
  46 #define VECTORS __attribute__ ((section (".vectors")))
  47 extern void _start(void);
  48
  49 /* Interrupt sub-routine prototypes - assigned to text1 region in linear space */
  50 void UISR(void) INT TEXT1;                              /* Unimplemented Interrupt Sub Routine */
  51
  52 void Injector1ISR(void) INT TEXT1;              /* OC timer for injector channel 1 */
  53 void Injector2ISR(void) INT TEXT1;              /* OC timer for injector channel 2 */
  54 void Injector3ISR(void) INT TEXT1;              /* OC timer for injector channel 3 */
  55 void Injector4ISR(void) INT TEXT1;              /* OC timer for injector channel 4 */
  56 void Injector5ISR(void) INT TEXT1;              /* OC timer for injector channel 5 */
  57 void Injector6ISR(void) INT TEXT1;              /* OC timer for injector channel 6 */
  58
  59 void PrimaryRPMISR(void) INT TEXT1;             /* IC timer for primary engine position and RPM */
  60 void SecondaryRPMISR(void) INT TEXT1;           /* IC timer for secondary engine position and RPM */
  61
  62 void TimerOverflow(void) INT TEXT1;             /* IC/OC timer overflow handling */
  63 void ModDownCtrISR(void) INT TEXT1;             /* Modulus Down Counter */
  64
  65 void IgnitionDwellISR(void) INT TEXT1;  /* PIT timer 0 for dwell start */
  66 void IgnitionFireISR(void) INT TEXT1;           /* PIT timer 1 for coil firing */
  67 void StagedOnISR(void) INT TEXT1;                       /* PIT timer 2 for switching staged injectors on */
  68 void StagedOffISR(void) INT TEXT1;              /* PIT timer 3 for switching staged injectors off */
  69
  70 void PortPISR(void) INT TEXT1;                  /* Port P interrupt service routine */
  71 void PortHISR(void) INT TEXT1;                  /* Port P interrupt service routine */
  72 void PortJISR(void) INT TEXT1;                  /* Port P interrupt service routine */
  73
  74 void IRQISR(void) INT TEXT1;                            /* IRQ/PE1 interrupt service routine */
  75 void XIRQISR(void) INT TEXT1;                           /* XIRQ/PE0 interrupt service routine */
  76
  77 void RTIISR(void) INT TEXT1;                            /* Real Time interrupt service routine */
  78
  79 void SCI0ISR(void) INT TEXT1;                           /* Serial 0 interrupt service routine */
  80
  81 void LowVoltageISR(void) INT TEXT1;             /* Low voltage counter ISR */
  82 void VRegAPIISR(void) INT TEXT1;                        /* VReg periodic interrupt ISR */
  83
  84 typedef void (* interruptTable)(void);
  85
  86 #else
  87         /* let us know if we are being untidy with headers */
  88         #warning "Header file INTERRUPTS_H seen before, sort it out!"
  89 /* end of the wrapper ifdef from the very top */
  90 #endif