[mirror_ubuntu-bionic-kernel.git] / arch / m68k / include / asm / amigaints.h

/*
** 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_

#include <asm/irq.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 */

/* builtin serial port interrupts */
#define IRQ_AMIGA_TBE		(IRQ_USER+0)
#define IRQ_AMIGA_RBF		(IRQ_USER+11)

/* floppy disk interrupts */
#define IRQ_AMIGA_DSKBLK	(IRQ_USER+1)
#define IRQ_AMIGA_DSKSYN	(IRQ_USER+12)

/* software interrupts */
#define IRQ_AMIGA_SOFT		(IRQ_USER+2)

/* interrupts from external hardware */
#define IRQ_AMIGA_PORTS		IRQ_AUTO_2
#define IRQ_AMIGA_EXTER		IRQ_AUTO_6

/* copper interrupt */
#define IRQ_AMIGA_COPPER	(IRQ_USER+4)

/* vertical blanking interrupt */
#define IRQ_AMIGA_VERTB		(IRQ_USER+5)

/* Blitter done interrupt */
#define IRQ_AMIGA_BLIT		(IRQ_USER+6)

/* Audio interrupts */
#define IRQ_AMIGA_AUD0		(IRQ_USER+7)
#define IRQ_AMIGA_AUD1		(IRQ_USER+8)
#define IRQ_AMIGA_AUD2		(IRQ_USER+9)
#define IRQ_AMIGA_AUD3		(IRQ_USER+10)

/* CIA interrupt sources */
#define IRQ_AMIGA_CIAA		(IRQ_USER+14)
#define IRQ_AMIGA_CIAA_TA	(IRQ_USER+14)
#define IRQ_AMIGA_CIAA_TB	(IRQ_USER+15)
#define IRQ_AMIGA_CIAA_ALRM	(IRQ_USER+16)
#define IRQ_AMIGA_CIAA_SP	(IRQ_USER+17)
#define IRQ_AMIGA_CIAA_FLG	(IRQ_USER+18)
#define IRQ_AMIGA_CIAB		(IRQ_USER+19)
#define IRQ_AMIGA_CIAB_TA	(IRQ_USER+19)
#define IRQ_AMIGA_CIAB_TB	(IRQ_USER+20)
#define IRQ_AMIGA_CIAB_ALRM	(IRQ_USER+21)
#define IRQ_AMIGA_CIAB_SP	(IRQ_USER+22)
#define IRQ_AMIGA_CIAB_FLG	(IRQ_USER+23)


/* INTREQR masks */
#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 */

/* 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

extern void amiga_init_IRQ(void);

/* 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 void cia_init_IRQ(struct ciabase *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 */
Commit	Line	Data
1da177e4 LT	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
1d174cfb RZ	16	#include <asm/irq.h>
1d174cfb RZ	17
1da177e4 LT	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+2CIA_IRQS /
	27
1d174cfb RZ	28	/* builtin serial port interrupts */
	29	#define IRQ_AMIGA_TBE (IRQ_USER+0)
	30	#define IRQ_AMIGA_RBF (IRQ_USER+11)
1da177e4	31
1d174cfb RZ	32	/* floppy disk interrupts */
	33	#define IRQ_AMIGA_DSKBLK (IRQ_USER+1)
	34	#define IRQ_AMIGA_DSKSYN (IRQ_USER+12)
1da177e4	35
1d174cfb RZ	36	/* software interrupts */
1d174cfb RZ	37	#define IRQ_AMIGA_SOFT (IRQ_USER+2)
1da177e4	38
1d174cfb	39	/* interrupts from external hardware */
74be8d08 RZ	40	#define IRQ_AMIGA_PORTS IRQ_AUTO_2
74be8d08 RZ	41	#define IRQ_AMIGA_EXTER IRQ_AUTO_6
1da177e4	42
1d174cfb RZ	43	/* copper interrupt */
1d174cfb RZ	44	#define IRQ_AMIGA_COPPER (IRQ_USER+4)
1da177e4	45
1d174cfb RZ	46	/* vertical blanking interrupt */
1d174cfb RZ	47	#define IRQ_AMIGA_VERTB (IRQ_USER+5)
1da177e4	48
1d174cfb RZ	49	/* Blitter done interrupt */
1d174cfb RZ	50	#define IRQ_AMIGA_BLIT (IRQ_USER+6)
1da177e4	51
1d174cfb RZ	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)
1da177e4 LT	57
1da177e4 LT	58	/* CIA interrupt sources */
1d174cfb RZ	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)
1da177e4	71
1da177e4 LT	72
1da177e4 LT	73	/* INTREQR masks */
1da177e4 LT	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
1da177e4 LT	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
0795dbcc AB	101	extern void amiga_init_IRQ(void);
0795dbcc AB	102
1da177e4 LT	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
	107	extern struct ciabase ciaa_base, ciab_base;
	108
74be8d08	109	extern void cia_init_IRQ(struct ciabase *base);
1da177e4 LT	110	extern unsigned char cia_set_irq(struct ciabase *base, unsigned char mask);
	111	extern unsigned char cia_able_irq(struct ciabase *base, unsigned char mask);
	112
	113	#endif /* asm-m68k/amigaints.h */