1/* 2 * BK Id: %F% %I% %G% %U% %#% 3 */ 4/* 5** amigaints.h -- Amiga Linux interrupt handling structs and prototypes 6** 7** Copyright 1992 by Greg Harp 8** 9** This file is subject to the terms and conditions of the GNU General Public 10** License. See the file COPYING in the main directory of this archive 11** for more details. 12** 13** Created 10/2/92 by Greg Harp 14*/ 15 16#ifdef __KERNEL__ 17#ifndef _ASMm68k_AMIGAINTS_H_ 18#define _ASMm68k_AMIGAINTS_H_ 19 20/* 21** Amiga Interrupt sources. 22** 23*/ 24 25#define AUTO_IRQS (8) 26#define AMI_STD_IRQS (14) 27#define CIA_IRQS (5) 28#define AMI_IRQS (32) /* AUTO_IRQS+AMI_STD_IRQS+2*CIA_IRQS */ 29 30/* vertical blanking interrupt */ 31#define IRQ_AMIGA_VERTB 0 32 33/* copper interrupt */ 34#define IRQ_AMIGA_COPPER 1 35 36/* Audio interrupts */ 37#define IRQ_AMIGA_AUD0 2 38#define IRQ_AMIGA_AUD1 3 39#define IRQ_AMIGA_AUD2 4 40#define IRQ_AMIGA_AUD3 5 41 42/* Blitter done interrupt */ 43#define IRQ_AMIGA_BLIT 6 44 45/* floppy disk interrupts */ 46#define IRQ_AMIGA_DSKSYN 7 47#define IRQ_AMIGA_DSKBLK 8 48 49/* builtin serial port interrupts */ 50#define IRQ_AMIGA_RBF 9 51#define IRQ_AMIGA_TBE 10 52 53/* software interrupts */ 54#define IRQ_AMIGA_SOFT 11 55 56/* interrupts from external hardware */ 57#define IRQ_AMIGA_PORTS 12 58#define IRQ_AMIGA_EXTER 13 59 60/* CIA interrupt sources */ 61#define IRQ_AMIGA_CIAA 14 62#define IRQ_AMIGA_CIAA_TA 14 63#define IRQ_AMIGA_CIAA_TB 15 64#define IRQ_AMIGA_CIAA_ALRM 16 65#define IRQ_AMIGA_CIAA_SP 17 66#define IRQ_AMIGA_CIAA_FLG 18 67#define IRQ_AMIGA_CIAB 19 68#define IRQ_AMIGA_CIAB_TA 19 69#define IRQ_AMIGA_CIAB_TB 20 70#define IRQ_AMIGA_CIAB_ALRM 21 71#define IRQ_AMIGA_CIAB_SP 22 72#define IRQ_AMIGA_CIAB_FLG 23 73 74/* auto-vector interrupts */ 75#define IRQ_AMIGA_AUTO 24 76#define IRQ_AMIGA_AUTO_0 24 /* This is just a dummy */ 77#define IRQ_AMIGA_AUTO_1 25 78#define IRQ_AMIGA_AUTO_2 26 79#define IRQ_AMIGA_AUTO_3 27 80#define IRQ_AMIGA_AUTO_4 28 81#define IRQ_AMIGA_AUTO_5 29 82#define IRQ_AMIGA_AUTO_6 30 83#define IRQ_AMIGA_AUTO_7 31 84 85#define IRQ_FLOPPY IRQ_AMIGA_DSKBLK 86 87/* INTREQR masks */ 88#define IRQ1_MASK 0x0007 /* INTREQR mask for IRQ 1 */ 89#define IRQ2_MASK 0x0008 /* INTREQR mask for IRQ 2 */ 90#define IRQ3_MASK 0x0070 /* INTREQR mask for IRQ 3 */ 91#define IRQ4_MASK 0x0780 /* INTREQR mask for IRQ 4 */ 92#define IRQ5_MASK 0x1800 /* INTREQR mask for IRQ 5 */ 93#define IRQ6_MASK 0x2000 /* INTREQR mask for IRQ 6 */ 94#define IRQ7_MASK 0x4000 /* INTREQR mask for IRQ 7 */ 95 96#define IF_SETCLR 0x8000 /* set/clr bit */ 97#define IF_INTEN 0x4000 /* master interrupt bit in INT* registers */ 98#define IF_EXTER 0x2000 /* external level 6 and CIA B interrupt */ 99#define IF_DSKSYN 0x1000 /* disk sync interrupt */ 100#define IF_RBF 0x0800 /* serial receive buffer full interrupt */ 101#define IF_AUD3 0x0400 /* audio channel 3 done interrupt */ 102#define IF_AUD2 0x0200 /* audio channel 2 done interrupt */ 103#define IF_AUD1 0x0100 /* audio channel 1 done interrupt */ 104#define IF_AUD0 0x0080 /* audio channel 0 done interrupt */ 105#define IF_BLIT 0x0040 /* blitter done interrupt */ 106#define IF_VERTB 0x0020 /* vertical blanking interrupt */ 107#define IF_COPER 0x0010 /* copper interrupt */ 108#define IF_PORTS 0x0008 /* external level 2 and CIA A interrupt */ 109#define IF_SOFT 0x0004 /* software initiated interrupt */ 110#define IF_DSKBLK 0x0002 /* diskblock DMA finished */ 111#define IF_TBE 0x0001 /* serial transmit buffer empty interrupt */ 112 113extern void amiga_do_irq(int irq, struct pt_regs *fp); 114extern void amiga_do_irq_list(int irq, struct pt_regs *fp); 115 116/* CIA interrupt control register bits */ 117 118#define CIA_ICR_TA 0x01 119#define CIA_ICR_TB 0x02 120#define CIA_ICR_ALRM 0x04 121#define CIA_ICR_SP 0x08 122#define CIA_ICR_FLG 0x10 123#define CIA_ICR_ALL 0x1f 124#define CIA_ICR_SETCLR 0x80 125 126/* to access the interrupt control registers of CIA's use only 127** these functions, they behave exactly like the amiga os routines 128*/ 129 130extern struct ciabase ciaa_base, ciab_base; 131 132extern unsigned char cia_set_irq(unsigned int irq, int set); 133extern unsigned char cia_able_irq(unsigned int irq, int enable); 134 135#endif /* asm-m68k/amigaints.h */ 136#endif /* __KERNEL__ */ 137