| 1 |
1276 |
phoenix |
/*
|
| 2 |
|
|
** amigaints.h -- Amiga Linux interrupt handling structs and prototypes
|
| 3 |
|
|
**
|
| 4 |
|
|
** Copyright 1992 by Greg Harp
|
| 5 |
|
|
**
|
| 6 |
|
|
** This file is subject to the terms and conditions of the GNU General Public
|
| 7 |
|
|
** License. See the file COPYING in the main directory of this archive
|
| 8 |
|
|
** for more details.
|
| 9 |
|
|
**
|
| 10 |
|
|
** Created 10/2/92 by Greg Harp
|
| 11 |
|
|
*/
|
| 12 |
|
|
|
| 13 |
|
|
#ifdef __KERNEL__
|
| 14 |
|
|
#ifndef _ASMm68k_AMIGAINTS_H_
|
| 15 |
|
|
#define _ASMm68k_AMIGAINTS_H_
|
| 16 |
|
|
|
| 17 |
|
|
/*
|
| 18 |
|
|
** Amiga Interrupt sources.
|
| 19 |
|
|
**
|
| 20 |
|
|
*/
|
| 21 |
|
|
|
| 22 |
|
|
#define AUTO_IRQS (8)
|
| 23 |
|
|
#define AMI_STD_IRQS (14)
|
| 24 |
|
|
#define CIA_IRQS (5)
|
| 25 |
|
|
#define AMI_IRQS (32) /* AUTO_IRQS+AMI_STD_IRQS+2*CIA_IRQS */
|
| 26 |
|
|
|
| 27 |
|
|
/* vertical blanking interrupt */
|
| 28 |
|
|
#define IRQ_AMIGA_VERTB 0
|
| 29 |
|
|
|
| 30 |
|
|
/* copper interrupt */
|
| 31 |
|
|
#define IRQ_AMIGA_COPPER 1
|
| 32 |
|
|
|
| 33 |
|
|
/* Audio interrupts */
|
| 34 |
|
|
#define IRQ_AMIGA_AUD0 2
|
| 35 |
|
|
#define IRQ_AMIGA_AUD1 3
|
| 36 |
|
|
#define IRQ_AMIGA_AUD2 4
|
| 37 |
|
|
#define IRQ_AMIGA_AUD3 5
|
| 38 |
|
|
|
| 39 |
|
|
/* Blitter done interrupt */
|
| 40 |
|
|
#define IRQ_AMIGA_BLIT 6
|
| 41 |
|
|
|
| 42 |
|
|
/* floppy disk interrupts */
|
| 43 |
|
|
#define IRQ_AMIGA_DSKSYN 7
|
| 44 |
|
|
#define IRQ_AMIGA_DSKBLK 8
|
| 45 |
|
|
|
| 46 |
|
|
/* builtin serial port interrupts */
|
| 47 |
|
|
#define IRQ_AMIGA_RBF 9
|
| 48 |
|
|
#define IRQ_AMIGA_TBE 10
|
| 49 |
|
|
|
| 50 |
|
|
/* software interrupts */
|
| 51 |
|
|
#define IRQ_AMIGA_SOFT 11
|
| 52 |
|
|
|
| 53 |
|
|
/* interrupts from external hardware */
|
| 54 |
|
|
#define IRQ_AMIGA_PORTS 12
|
| 55 |
|
|
#define IRQ_AMIGA_EXTER 13
|
| 56 |
|
|
|
| 57 |
|
|
/* CIA interrupt sources */
|
| 58 |
|
|
#define IRQ_AMIGA_CIAA 14
|
| 59 |
|
|
#define IRQ_AMIGA_CIAA_TA 14
|
| 60 |
|
|
#define IRQ_AMIGA_CIAA_TB 15
|
| 61 |
|
|
#define IRQ_AMIGA_CIAA_ALRM 16
|
| 62 |
|
|
#define IRQ_AMIGA_CIAA_SP 17
|
| 63 |
|
|
#define IRQ_AMIGA_CIAA_FLG 18
|
| 64 |
|
|
#define IRQ_AMIGA_CIAB 19
|
| 65 |
|
|
#define IRQ_AMIGA_CIAB_TA 19
|
| 66 |
|
|
#define IRQ_AMIGA_CIAB_TB 20
|
| 67 |
|
|
#define IRQ_AMIGA_CIAB_ALRM 21
|
| 68 |
|
|
#define IRQ_AMIGA_CIAB_SP 22
|
| 69 |
|
|
#define IRQ_AMIGA_CIAB_FLG 23
|
| 70 |
|
|
|
| 71 |
|
|
/* auto-vector interrupts */
|
| 72 |
|
|
#define IRQ_AMIGA_AUTO 24
|
| 73 |
|
|
#define IRQ_AMIGA_AUTO_0 24 /* This is just a dummy */
|
| 74 |
|
|
#define IRQ_AMIGA_AUTO_1 25
|
| 75 |
|
|
#define IRQ_AMIGA_AUTO_2 26
|
| 76 |
|
|
#define IRQ_AMIGA_AUTO_3 27
|
| 77 |
|
|
#define IRQ_AMIGA_AUTO_4 28
|
| 78 |
|
|
#define IRQ_AMIGA_AUTO_5 29
|
| 79 |
|
|
#define IRQ_AMIGA_AUTO_6 30
|
| 80 |
|
|
#define IRQ_AMIGA_AUTO_7 31
|
| 81 |
|
|
|
| 82 |
|
|
#define IRQ_FLOPPY IRQ_AMIGA_DSKBLK
|
| 83 |
|
|
|
| 84 |
|
|
/* INTREQR masks */
|
| 85 |
|
|
#define IRQ1_MASK 0x0007 /* INTREQR mask for IRQ 1 */
|
| 86 |
|
|
#define IRQ2_MASK 0x0008 /* INTREQR mask for IRQ 2 */
|
| 87 |
|
|
#define IRQ3_MASK 0x0070 /* INTREQR mask for IRQ 3 */
|
| 88 |
|
|
#define IRQ4_MASK 0x0780 /* INTREQR mask for IRQ 4 */
|
| 89 |
|
|
#define IRQ5_MASK 0x1800 /* INTREQR mask for IRQ 5 */
|
| 90 |
|
|
#define IRQ6_MASK 0x2000 /* INTREQR mask for IRQ 6 */
|
| 91 |
|
|
#define IRQ7_MASK 0x4000 /* INTREQR mask for IRQ 7 */
|
| 92 |
|
|
|
| 93 |
|
|
#define IF_SETCLR 0x8000 /* set/clr bit */
|
| 94 |
|
|
#define IF_INTEN 0x4000 /* master interrupt bit in INT* registers */
|
| 95 |
|
|
#define IF_EXTER 0x2000 /* external level 6 and CIA B interrupt */
|
| 96 |
|
|
#define IF_DSKSYN 0x1000 /* disk sync interrupt */
|
| 97 |
|
|
#define IF_RBF 0x0800 /* serial receive buffer full interrupt */
|
| 98 |
|
|
#define IF_AUD3 0x0400 /* audio channel 3 done interrupt */
|
| 99 |
|
|
#define IF_AUD2 0x0200 /* audio channel 2 done interrupt */
|
| 100 |
|
|
#define IF_AUD1 0x0100 /* audio channel 1 done interrupt */
|
| 101 |
|
|
#define IF_AUD0 0x0080 /* audio channel 0 done interrupt */
|
| 102 |
|
|
#define IF_BLIT 0x0040 /* blitter done interrupt */
|
| 103 |
|
|
#define IF_VERTB 0x0020 /* vertical blanking interrupt */
|
| 104 |
|
|
#define IF_COPER 0x0010 /* copper interrupt */
|
| 105 |
|
|
#define IF_PORTS 0x0008 /* external level 2 and CIA A interrupt */
|
| 106 |
|
|
#define IF_SOFT 0x0004 /* software initiated interrupt */
|
| 107 |
|
|
#define IF_DSKBLK 0x0002 /* diskblock DMA finished */
|
| 108 |
|
|
#define IF_TBE 0x0001 /* serial transmit buffer empty interrupt */
|
| 109 |
|
|
|
| 110 |
|
|
extern void amiga_do_irq(int irq, struct pt_regs *fp);
|
| 111 |
|
|
extern void amiga_do_irq_list(int irq, struct pt_regs *fp);
|
| 112 |
|
|
|
| 113 |
|
|
/* CIA interrupt control register bits */
|
| 114 |
|
|
|
| 115 |
|
|
#define CIA_ICR_TA 0x01
|
| 116 |
|
|
#define CIA_ICR_TB 0x02
|
| 117 |
|
|
#define CIA_ICR_ALRM 0x04
|
| 118 |
|
|
#define CIA_ICR_SP 0x08
|
| 119 |
|
|
#define CIA_ICR_FLG 0x10
|
| 120 |
|
|
#define CIA_ICR_ALL 0x1f
|
| 121 |
|
|
#define CIA_ICR_SETCLR 0x80
|
| 122 |
|
|
|
| 123 |
|
|
/* to access the interrupt control registers of CIA's use only
|
| 124 |
|
|
** these functions, they behave exactly like the amiga os routines
|
| 125 |
|
|
*/
|
| 126 |
|
|
|
| 127 |
|
|
extern struct ciabase ciaa_base, ciab_base;
|
| 128 |
|
|
|
| 129 |
|
|
extern unsigned char cia_set_irq(unsigned int irq, int set);
|
| 130 |
|
|
extern unsigned char cia_able_irq(unsigned int irq, int enable);
|
| 131 |
|
|
|
| 132 |
|
|
#endif /* asm-m68k/amigaints.h */
|
| 133 |
|
|
#endif /* __KERNEL__ */
|
