1 files changed, 113 insertions, 0 deletions

diff --git a/arch/m68k/include/asm/amigaints.h b/arch/m68k/include/asm/amigaints.h
new file mode 100644
index 000000000000..b1bcdb835ab9
--- /dev/null
+++ b/arch/m68k/include/asm/amigaints.h
@@ -0,0 +1,113 @@
+/*
+** 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 */