- /*
- * BK Id: %F% %I% %G% %U% %#%
- */
- /*
- ** 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
- */
- #ifdef __KERNEL__
- #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(unsigned int irq, int set);
- extern unsigned char cia_able_irq(unsigned int irq, int enable);
- #endif /* asm-m68k/amigaints.h */
- #endif /* __KERNEL__ */