1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun ** amigaints.h -- Amiga Linux interrupt handling structs and prototypes 3*4882a593Smuzhiyun ** 4*4882a593Smuzhiyun ** Copyright 1992 by Greg Harp 5*4882a593Smuzhiyun ** 6*4882a593Smuzhiyun ** This file is subject to the terms and conditions of the GNU General Public 7*4882a593Smuzhiyun ** License. See the file COPYING in the main directory of this archive 8*4882a593Smuzhiyun ** for more details. 9*4882a593Smuzhiyun ** 10*4882a593Smuzhiyun ** Created 10/2/92 by Greg Harp 11*4882a593Smuzhiyun */ 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun #ifndef _ASMm68k_AMIGAINTS_H_ 14*4882a593Smuzhiyun #define _ASMm68k_AMIGAINTS_H_ 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun #include <asm/irq.h> 17*4882a593Smuzhiyun 18*4882a593Smuzhiyun /* 19*4882a593Smuzhiyun ** Amiga Interrupt sources. 20*4882a593Smuzhiyun ** 21*4882a593Smuzhiyun */ 22*4882a593Smuzhiyun 23*4882a593Smuzhiyun #define AUTO_IRQS (8) 24*4882a593Smuzhiyun #define AMI_STD_IRQS (14) 25*4882a593Smuzhiyun #define CIA_IRQS (5) 26*4882a593Smuzhiyun #define AMI_IRQS (32) /* AUTO_IRQS+AMI_STD_IRQS+2*CIA_IRQS */ 27*4882a593Smuzhiyun 28*4882a593Smuzhiyun /* builtin serial port interrupts */ 29*4882a593Smuzhiyun #define IRQ_AMIGA_TBE (IRQ_USER+0) 30*4882a593Smuzhiyun #define IRQ_AMIGA_RBF (IRQ_USER+11) 31*4882a593Smuzhiyun 32*4882a593Smuzhiyun /* floppy disk interrupts */ 33*4882a593Smuzhiyun #define IRQ_AMIGA_DSKBLK (IRQ_USER+1) 34*4882a593Smuzhiyun #define IRQ_AMIGA_DSKSYN (IRQ_USER+12) 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun /* software interrupts */ 37*4882a593Smuzhiyun #define IRQ_AMIGA_SOFT (IRQ_USER+2) 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun /* interrupts from external hardware */ 40*4882a593Smuzhiyun #define IRQ_AMIGA_PORTS IRQ_AUTO_2 41*4882a593Smuzhiyun #define IRQ_AMIGA_EXTER IRQ_AUTO_6 42*4882a593Smuzhiyun 43*4882a593Smuzhiyun /* copper interrupt */ 44*4882a593Smuzhiyun #define IRQ_AMIGA_COPPER (IRQ_USER+4) 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun /* vertical blanking interrupt */ 47*4882a593Smuzhiyun #define IRQ_AMIGA_VERTB (IRQ_USER+5) 48*4882a593Smuzhiyun 49*4882a593Smuzhiyun /* Blitter done interrupt */ 50*4882a593Smuzhiyun #define IRQ_AMIGA_BLIT (IRQ_USER+6) 51*4882a593Smuzhiyun 52*4882a593Smuzhiyun /* Audio interrupts */ 53*4882a593Smuzhiyun #define IRQ_AMIGA_AUD0 (IRQ_USER+7) 54*4882a593Smuzhiyun #define IRQ_AMIGA_AUD1 (IRQ_USER+8) 55*4882a593Smuzhiyun #define IRQ_AMIGA_AUD2 (IRQ_USER+9) 56*4882a593Smuzhiyun #define IRQ_AMIGA_AUD3 (IRQ_USER+10) 57*4882a593Smuzhiyun 58*4882a593Smuzhiyun /* CIA interrupt sources */ 59*4882a593Smuzhiyun #define IRQ_AMIGA_CIAA (IRQ_USER+14) 60*4882a593Smuzhiyun #define IRQ_AMIGA_CIAA_TA (IRQ_USER+14) 61*4882a593Smuzhiyun #define IRQ_AMIGA_CIAA_TB (IRQ_USER+15) 62*4882a593Smuzhiyun #define IRQ_AMIGA_CIAA_ALRM (IRQ_USER+16) 63*4882a593Smuzhiyun #define IRQ_AMIGA_CIAA_SP (IRQ_USER+17) 64*4882a593Smuzhiyun #define IRQ_AMIGA_CIAA_FLG (IRQ_USER+18) 65*4882a593Smuzhiyun #define IRQ_AMIGA_CIAB (IRQ_USER+19) 66*4882a593Smuzhiyun #define IRQ_AMIGA_CIAB_TA (IRQ_USER+19) 67*4882a593Smuzhiyun #define IRQ_AMIGA_CIAB_TB (IRQ_USER+20) 68*4882a593Smuzhiyun #define IRQ_AMIGA_CIAB_ALRM (IRQ_USER+21) 69*4882a593Smuzhiyun #define IRQ_AMIGA_CIAB_SP (IRQ_USER+22) 70*4882a593Smuzhiyun #define IRQ_AMIGA_CIAB_FLG (IRQ_USER+23) 71*4882a593Smuzhiyun 72*4882a593Smuzhiyun 73*4882a593Smuzhiyun /* INTREQR masks */ 74*4882a593Smuzhiyun #define IF_SETCLR 0x8000 /* set/clr bit */ 75*4882a593Smuzhiyun #define IF_INTEN 0x4000 /* master interrupt bit in INT* registers */ 76*4882a593Smuzhiyun #define IF_EXTER 0x2000 /* external level 6 and CIA B interrupt */ 77*4882a593Smuzhiyun #define IF_DSKSYN 0x1000 /* disk sync interrupt */ 78*4882a593Smuzhiyun #define IF_RBF 0x0800 /* serial receive buffer full interrupt */ 79*4882a593Smuzhiyun #define IF_AUD3 0x0400 /* audio channel 3 done interrupt */ 80*4882a593Smuzhiyun #define IF_AUD2 0x0200 /* audio channel 2 done interrupt */ 81*4882a593Smuzhiyun #define IF_AUD1 0x0100 /* audio channel 1 done interrupt */ 82*4882a593Smuzhiyun #define IF_AUD0 0x0080 /* audio channel 0 done interrupt */ 83*4882a593Smuzhiyun #define IF_BLIT 0x0040 /* blitter done interrupt */ 84*4882a593Smuzhiyun #define IF_VERTB 0x0020 /* vertical blanking interrupt */ 85*4882a593Smuzhiyun #define IF_COPER 0x0010 /* copper interrupt */ 86*4882a593Smuzhiyun #define IF_PORTS 0x0008 /* external level 2 and CIA A interrupt */ 87*4882a593Smuzhiyun #define IF_SOFT 0x0004 /* software initiated interrupt */ 88*4882a593Smuzhiyun #define IF_DSKBLK 0x0002 /* diskblock DMA finished */ 89*4882a593Smuzhiyun #define IF_TBE 0x0001 /* serial transmit buffer empty interrupt */ 90*4882a593Smuzhiyun 91*4882a593Smuzhiyun /* CIA interrupt control register bits */ 92*4882a593Smuzhiyun 93*4882a593Smuzhiyun #define CIA_ICR_TA 0x01 94*4882a593Smuzhiyun #define CIA_ICR_TB 0x02 95*4882a593Smuzhiyun #define CIA_ICR_ALRM 0x04 96*4882a593Smuzhiyun #define CIA_ICR_SP 0x08 97*4882a593Smuzhiyun #define CIA_ICR_FLG 0x10 98*4882a593Smuzhiyun #define CIA_ICR_ALL 0x1f 99*4882a593Smuzhiyun #define CIA_ICR_SETCLR 0x80 100*4882a593Smuzhiyun 101*4882a593Smuzhiyun extern void amiga_init_IRQ(void); 102*4882a593Smuzhiyun 103*4882a593Smuzhiyun /* to access the interrupt control registers of CIA's use only 104*4882a593Smuzhiyun ** these functions, they behave exactly like the amiga os routines 105*4882a593Smuzhiyun */ 106*4882a593Smuzhiyun 107*4882a593Smuzhiyun extern struct ciabase ciaa_base, ciab_base; 108*4882a593Smuzhiyun 109*4882a593Smuzhiyun extern void cia_init_IRQ(struct ciabase *base); 110*4882a593Smuzhiyun extern unsigned char cia_set_irq(struct ciabase *base, unsigned char mask); 111*4882a593Smuzhiyun extern unsigned char cia_able_irq(struct ciabase *base, unsigned char mask); 112*4882a593Smuzhiyun 113*4882a593Smuzhiyun #endif /* asm-m68k/amigaints.h */ 114