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