/*
* Signal handler header
*
* written by Vangelis Rokas, 2005 <vrokas AT otenet.gr>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This library 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*
* $Id: signal.h,v 1.3 2005/08/07 20:09:10 tecodev Exp $
*/
#ifndef __SIGNAL_H__
#define __SIGNAL_H__
/* interrupt testing arguments */
#define SIG_RB SIG_RBIF
#define SIG_INT0 SIG_INT0IF
#define SIG_INT1 SIG_INT1IF
#define SIG_INT2 SIG_INT2IF
#define SIG_CCP1 SIG_CCP1IF
#define SIG_CCP2 SIG_CCP2IF
#define SIG_TMR0 SIG_TMR0IF
#define SIG_TMR1 SIG_TMR1IF
#define SIG_TMR2 SIG_TMR2IF
#define SIG_TMR3 SIG_TMR3IF
#define SIG_EE SIG_EEIF
#define SIG_BCOL SIG_BCOLIF
#define SIG_LVD SIG_LVDIF
#define SIG_PSP SIG_PSPIF
#define SIG_AD SIG_ADIF
#define SIG_RC SIG_RCIF
#define SIG_TX SIG_TXIF
#define SIG_SSP SIG_SSPIF
#define SIG_MSSP SIG_SSPIF /* just an alias */
#define SIG_USB SIG_USBIF
/* define name to be the interrupt handler for interrupt #vecno */
#define DEF_ABSVECTOR(vecno, name) \
void __ivt_ ## name(void) __interrupt vecno __naked \
{ \
__asm \n\
goto _ ## name \n\
__endasm; \
}
/* Define name to be the handler for high priority interrupts,
* use like this:
* DEF_INTHIGH(high_handler)
* DEF_HANDLER(SIG_TMR0, timer0_handler)
* DEF_HANDLER2(SIG_TMR1, SIG_TMR1IE, timer1_handler)
* ...
* END_DEF
*
* SIGHANDLER(timer0_handler)
* {
* // code to handle timer0 interrupts
* }
* SIGHANDLER(timer1_handler)
* {
* // code to handle timer1 interrupts
* }
*/
#define DEF_INTHIGH(name) \
DEF_ABSVECTOR(1, name) \
void name(void) __naked __interrupt \
{ \
__asm
/* Define name to be the handler for high priority interrupts,
* use like this:
* DEF_INTLOW(low_handler)
* DEF_HANDLER(SIG_RB, portb_handler)
* DEF_HANDLER2(SIG_LVD, SIG_LVDIE, lowvolt_handler)
* ...
* END_DEF
*
* SIGHANDLER(portb_handler)
* {
* // code to handle PORTB change interrupts
* }
* SIGHANDLER(lowvolt_handler)
* {
* // code to handle low voltage interrupts
* }
*/
#define DEF_INTLOW(name) \
DEF_ABSVECTOR(2, name) \
void name(void) __naked __interrupt \
{ \
__asm
/* finish an interrupt handler definition */
#define END_DEF \
retfie \n\
__endasm; \
}
/* Declare handler to be the handler function for the given signal.
* sig should be one of SIG_xxx from above, handler should be a
* function defined using SIGHANDLER(handler) or
* SIGHANDLERNAKED(handler).
* ATTENTION: This macro ignores the signal's enable bit!
* Use DEF_HANDLER2(SIG_xxx, SIGxxxIE, handler) instead!
* To be used together with DEF_INTHIGH and DEF_INTLOW.
*/
#define DEF_HANDLER(sig, handler) \
btfsc sig \n\
goto _ ## handler
/* Declare handler to be the handler function for the given signal.
* sig should be one of SIG_xxx from above,
* sig2 should also be a signal (probably SIG_xxxIE from below) and
* handler should be a function defined using SIGHANDLER(handler)
* or SIGHANDLERNAKED(handler).
* To be used together with DEF_INTHIGH and DEF_INTLOW.
*/
#define DEF_HANDLER2(sig1,sig2,handler) \
btfss sig1 \n\
bra $+8 \n\
btfsc sig2 \n\
goto _ ## handler
/* Declare or define an interrupt handler function. */
#define SIGHANDLER(handler) void handler (void) __interrupt
#define SIGHANDLERNAKED(handler) void handler (void) __naked __interrupt
/*
* inline assembly compatible bit definitions
*/
#define SIG_RBIF _INTCON, 0
#define SIG_RBIE _INTCON, 3
#define SIG_RBIP _INTCON2, 0
#define SIG_INT0IF _INTCON, 1
#define SIG_INT0IE _INTCON, 4
/*#define SIG_INT0IP not selectable, always ? */
#define SIG_TMR0IF _INTCON, 2
#define SIG_TMR0IE _INTCON, 5
#define SIG_TMR0IP _INTCON2, 2
#define SIG_INT1IF _INTCON3, 0
#define SIG_INT1IE _INTCON3, 3
#define SIG_INT1IP _INTCON3, 6
#define SIG_INT2IF _INTCON3, 1
#define SIG_INT2IE _INTCON3, 4
#define SIG_INT2IP _INTCON3, 7
/* device dependent -- should be moved to pic18f*.h */
#define SIG_TMR1IDX 0
#define SIG_TMR1SUF 1
#define SIG_TMR2IDX 1
#define SIG_TMR2SUF 1
#define SIG_CCP1IDX 2
#define SIG_CCP1SUF 1
#define SIG_SSPIDX 3
#define SIG_SSPSUF 1
#define SIG_TXIDX 4
#define SIG_TXSUF 1
#define SIG_RCIDX 5
#define SIG_RCSUF 1
#define SIG_ADIDX 6
#define SIG_ADSUF 1
#define SIG_PSPIDX 7
#define SIG_PSPSUF 1
#define SIG_CCP2IDX 0
#define SIG_CCP2SUF 2
#define SIG_TMR3IDX 1
#define SIG_TMR3SUF 2
#define SIG_LVDIDX 2
#define SIG_LVDSUF 2
#define SIG_BCOLIDX 3
#define SIG_BCOLSUF 2
#define SIG_EEIDX 4
#define SIG_EESUF 2
#define SIG_USBIDX 5
#define SIG_USBSUF 2
/* device independent */
#define __concat(a,b) __concat2(a,b)
#define __concat2(a,b) a ## b
#define SIG_PIR(suf) __concat(_PIR,suf)
#define SIG_PIE(suf) __concat(_PIE,suf)
#define SIG_IPR(suf) __concat(_IPR,suf)
#define SIG_TMR1IF SIG_PIR(SIG_TMR1SUF), SIG_TMR1IDX
#define SIG_TMR1IE SIG_PIE(SIG_TMR1SUF), SIG_TMR1IDX
#define SIG_TMR1IP SIG_IPR(SIG_TMR1SUF), SIG_TMR1IDX
#define SIG_TMR2IF SIG_PIR(SIG_TMR2SUF), SIG_TMR2IDX
#define SIG_TMR2IE SIG_PIE(SIG_TMR2SUF), SIG_TMR2IDX
#define SIG_TMR2IP SIG_IPR(SIG_TMR2SUF), SIG_TMR2IDX
#define SIG_CCP1IF SIG_PIR(SIG_CCP1SUF), SIG_CCP1IDX
#define SIG_CCP1IE SIG_PIE(SIG_CCP1SUF), SIG_CCP1IDX
#define SIG_CCP1IP SIG_IPR(SIG_CCP1SUF), SIG_CCP1IDX
#define SIG_SSPIF SIG_PIR(SIG_SSPSUF), SIG_SSPIDX
#define SIG_SSPIE SIG_PIE(SIG_SSPSUF), SIG_SSPIDX
#define SIG_SSPIP SIG_IPR(SIG_SSPSUF), SIG_SSPIDX
/* aliases: MSSP */
#define SIG_MSSPIF SIG_SSPIF //SIG_PIR(SIG_SSPSUF), SIG_SSPIDX
#define SIG_MSSPIE SIG_SSPIE //SIG_PIE(SIG_SSPSUF), SIG_SSPIDX
#define SIG_MSSPIP SIG_SSPIP //SIG_IPR(SIG_SSPSUF), SIG_SSPIDX
#define SIG_TXIF SIG_PIR(SIG_TXSUF), SIG_TXIDX
#define SIG_TXIE SIG_PIE(SIG_TXSUF), SIG_TXIDX
#define SIG_TXIP SIG_IPR(SIG_TXSUF), SIG_TXIDX
#define SIG_RCIF SIG_PIR(SIG_RCSUF), SIG_RCIDX
#define SIG_RCIE SIG_PIE(SIG_RCSUF), SIG_RCIDX
#define SIG_RCIP SIG_IPR(SIG_RCSUF), SIG_RCIDX
#define SIG_ADIF SIG_PIR(SIG_ADSUF), SIG_ADIDX
#define SIG_ADIE SIG_PIE(SIG_ADSUF), SIG_ADIDX
#define SIG_ADIP SIG_IPR(SIG_ADSUF), SIG_ADIDX
#define SIG_PSPIF SIG_PIR(SIG_PSPSUF), SIG_PSPIDX
#define SIG_PSPIE SIG_PIE(SIG_PSPSUF), SIG_PSPIDX
#define SIG_PSPIP SIG_IPR(SIG_PSPSUF), SIG_PSPIDX
#define SIG_CCP2IF SIG_PIR(SIG_CCP2SUF), SIG_CCP2IDX
#define SIG_CCP2IE SIG_PIE(SIG_CCP2SUF), SIG_CCP2IDX
#define SIG_CCP2IP SIG_IPR(SIG_CCP2SUF), SIG_CCP2IDX
#define SIG_TMR3IF SIG_PIR(SIG_TMR3SUF), SIG_TMR3IDX
#define SIG_TMR3IE SIG_PIE(SIG_TMR3SUF), SIG_TMR3IDX
#define SIG_TMR3IP SIG_IPR(SIG_TMR3SUF), SIG_TMR3IDX
#define SIG_LVDIF SIG_PIR(SIG_LVDSUF), SIG_LVDIDX
#define SIG_LVDIE SIG_PIE(SIG_LVDSUF), SIG_LVDIDX
#define SIG_LVDIP SIG_IPR(SIG_LVDSUF), SIG_LVDIDX
#define SIG_BCOLIF SIG_PIR(SIG_BCOLSUF), SIG_BCOLIDX
#define SIG_BCOLIE SIG_PIE(SIG_BCOLSUF), SIG_BCOLIDX
#define SIG_BCOLIP SIG_IPR(SIG_BCOLSUF), SIG_BCOLIDX
#define SIG_EEIF SIG_PIR(SIG_EESUF), SIG_EEIDX
#define SIG_EEIE SIG_PIE(SIG_EESUF), SIG_EEIDX
#define SIG_EEIP SIG_IPR(SIG_EESUF), SIG_EEIDX
#define SIG_USBIF SIG_PIR(SIG_USBSUF), SIG_USBIDX
#define SIG_USBIE SIG_PIE(SIG_USBSUF), SIG_USBIDX
#define SIG_USBIP SIG_IPR(SIG_USBSUF), SIG_USBIDX
#endif /* __SIGNAL_H__ */
