| /* |
| ** amigaints.h -- Amiga Linux interrupt handling structs and prototypes |
| ** |
| ** Copyright 1992 by Greg Harp |
| ** |
| ** This file is subject to the terms and conditions of the GNU General Public |
| ** License. See the file COPYING in the main directory of this archive |
| ** for more details. |
| ** |
| ** Created 10/2/92 by Greg Harp |
| */ |
| |
| #ifndef _ASMm68k_AMIGAINTS_H_ |
| #define _ASMm68k_AMIGAINTS_H_ |
| |
| /* |
| ** Amiga Interrupt sources. |
| ** |
| */ |
| |
| #define AUTO_IRQS (8) |
| #define AMI_STD_IRQS (14) |
| #define CIA_IRQS (5) |
| #define AMI_IRQS (32) /* AUTO_IRQS+AMI_STD_IRQS+2*CIA_IRQS */ |
| |
| /* vertical blanking interrupt */ |
| #define IRQ_AMIGA_VERTB 0 |
| |
| /* copper interrupt */ |
| #define IRQ_AMIGA_COPPER 1 |
| |
| /* Audio interrupts */ |
| #define IRQ_AMIGA_AUD0 2 |
| #define IRQ_AMIGA_AUD1 3 |
| #define IRQ_AMIGA_AUD2 4 |
| #define IRQ_AMIGA_AUD3 5 |
| |
| /* Blitter done interrupt */ |
| #define IRQ_AMIGA_BLIT 6 |
| |
| /* floppy disk interrupts */ |
| #define IRQ_AMIGA_DSKSYN 7 |
| #define IRQ_AMIGA_DSKBLK 8 |
| |
| /* builtin serial port interrupts */ |
| #define IRQ_AMIGA_RBF 9 |
| #define IRQ_AMIGA_TBE 10 |
| |
| /* software interrupts */ |
| #define IRQ_AMIGA_SOFT 11 |
| |
| /* interrupts from external hardware */ |
| #define IRQ_AMIGA_PORTS 12 |
| #define IRQ_AMIGA_EXTER 13 |
| |
| /* CIA interrupt sources */ |
| #define IRQ_AMIGA_CIAA 14 |
| #define IRQ_AMIGA_CIAA_TA 14 |
| #define IRQ_AMIGA_CIAA_TB 15 |
| #define IRQ_AMIGA_CIAA_ALRM 16 |
| #define IRQ_AMIGA_CIAA_SP 17 |
| #define IRQ_AMIGA_CIAA_FLG 18 |
| #define IRQ_AMIGA_CIAB 19 |
| #define IRQ_AMIGA_CIAB_TA 19 |
| #define IRQ_AMIGA_CIAB_TB 20 |
| #define IRQ_AMIGA_CIAB_ALRM 21 |
| #define IRQ_AMIGA_CIAB_SP 22 |
| #define IRQ_AMIGA_CIAB_FLG 23 |
| |
| /* auto-vector interrupts */ |
| #define IRQ_AMIGA_AUTO 24 |
| #define IRQ_AMIGA_AUTO_0 24 /* This is just a dummy */ |
| #define IRQ_AMIGA_AUTO_1 25 |
| #define IRQ_AMIGA_AUTO_2 26 |
| #define IRQ_AMIGA_AUTO_3 27 |
| #define IRQ_AMIGA_AUTO_4 28 |
| #define IRQ_AMIGA_AUTO_5 29 |
| #define IRQ_AMIGA_AUTO_6 30 |
| #define IRQ_AMIGA_AUTO_7 31 |
| |
| #define IRQ_FLOPPY IRQ_AMIGA_DSKBLK |
| |
| /* INTREQR masks */ |
| #define IRQ1_MASK 0x0007 /* INTREQR mask for IRQ 1 */ |
| #define IRQ2_MASK 0x0008 /* INTREQR mask for IRQ 2 */ |
| #define IRQ3_MASK 0x0070 /* INTREQR mask for IRQ 3 */ |
| #define IRQ4_MASK 0x0780 /* INTREQR mask for IRQ 4 */ |
| #define IRQ5_MASK 0x1800 /* INTREQR mask for IRQ 5 */ |
| #define IRQ6_MASK 0x2000 /* INTREQR mask for IRQ 6 */ |
| #define IRQ7_MASK 0x4000 /* INTREQR mask for IRQ 7 */ |
| |
| #define IF_SETCLR 0x8000 /* set/clr bit */ |
| #define IF_INTEN 0x4000 /* master interrupt bit in INT* registers */ |
| #define IF_EXTER 0x2000 /* external level 6 and CIA B interrupt */ |
| #define IF_DSKSYN 0x1000 /* disk sync interrupt */ |
| #define IF_RBF 0x0800 /* serial receive buffer full interrupt */ |
| #define IF_AUD3 0x0400 /* audio channel 3 done interrupt */ |
| #define IF_AUD2 0x0200 /* audio channel 2 done interrupt */ |
| #define IF_AUD1 0x0100 /* audio channel 1 done interrupt */ |
| #define IF_AUD0 0x0080 /* audio channel 0 done interrupt */ |
| #define IF_BLIT 0x0040 /* blitter done interrupt */ |
| #define IF_VERTB 0x0020 /* vertical blanking interrupt */ |
| #define IF_COPER 0x0010 /* copper interrupt */ |
| #define IF_PORTS 0x0008 /* external level 2 and CIA A interrupt */ |
| #define IF_SOFT 0x0004 /* software initiated interrupt */ |
| #define IF_DSKBLK 0x0002 /* diskblock DMA finished */ |
| #define IF_TBE 0x0001 /* serial transmit buffer empty interrupt */ |
| |
| extern void amiga_do_irq(int irq, struct pt_regs *fp); |
| extern void amiga_do_irq_list(int irq, struct pt_regs *fp); |
| |
| /* CIA interrupt control register bits */ |
| |
| #define CIA_ICR_TA 0x01 |
| #define CIA_ICR_TB 0x02 |
| #define CIA_ICR_ALRM 0x04 |
| #define CIA_ICR_SP 0x08 |
| #define CIA_ICR_FLG 0x10 |
| #define CIA_ICR_ALL 0x1f |
| #define CIA_ICR_SETCLR 0x80 |
| |
| /* to access the interrupt control registers of CIA's use only |
| ** these functions, they behave exactly like the amiga os routines |
| */ |
| |
| extern struct ciabase ciaa_base, ciab_base; |
| |
| extern unsigned char cia_set_irq(struct ciabase *base, unsigned char mask); |
| extern unsigned char cia_able_irq(struct ciabase *base, unsigned char mask); |
| |
| #endif /* asm-m68k/amigaints.h */ |