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-rw-r--r--arch/mips/include/asm/dec/interrupts.h126
1 files changed, 126 insertions, 0 deletions
diff --git a/arch/mips/include/asm/dec/interrupts.h b/arch/mips/include/asm/dec/interrupts.h
new file mode 100644
index 0000000..e10d341
--- /dev/null
+++ b/arch/mips/include/asm/dec/interrupts.h
@@ -0,0 +1,126 @@
+/*
+ * Miscellaneous definitions used to initialise the interrupt vector table
+ * with the machine-specific interrupt routines.
+ *
+ * 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.
+ *
+ * Copyright (C) 1997 by Paul M. Antoine.
+ * reworked 1998 by Harald Koerfgen.
+ * Copyright (C) 2001, 2002, 2003 Maciej W. Rozycki
+ */
+
+#ifndef __ASM_DEC_INTERRUPTS_H
+#define __ASM_DEC_INTERRUPTS_H
+
+#include <irq.h>
+#include <asm/mipsregs.h>
+
+
+/*
+ * The list of possible system devices which provide an
+ * interrupt. Not all devices exist on a given system.
+ */
+#define DEC_IRQ_CASCADE 0 /* cascade from CSR or I/O ASIC */
+
+/* Ordinary interrupts */
+#define DEC_IRQ_AB_RECV 1 /* ACCESS.bus receive */
+#define DEC_IRQ_AB_XMIT 2 /* ACCESS.bus transmit */
+#define DEC_IRQ_DZ11 3 /* DZ11 (DC7085) serial */
+#define DEC_IRQ_ASC 4 /* ASC (NCR53C94) SCSI */
+#define DEC_IRQ_FLOPPY 5 /* 82077 FDC */
+#define DEC_IRQ_FPU 6 /* R3k FPU */
+#define DEC_IRQ_HALT 7 /* HALT button or from ACCESS.Bus */
+#define DEC_IRQ_ISDN 8 /* Am79C30A ISDN */
+#define DEC_IRQ_LANCE 9 /* LANCE (Am7990) Ethernet */
+#define DEC_IRQ_BUS 10 /* memory, I/O bus read/write errors */
+#define DEC_IRQ_PSU 11 /* power supply unit warning */
+#define DEC_IRQ_RTC 12 /* DS1287 RTC */
+#define DEC_IRQ_SCC0 13 /* SCC (Z85C30) serial #0 */
+#define DEC_IRQ_SCC1 14 /* SCC (Z85C30) serial #1 */
+#define DEC_IRQ_SII 15 /* SII (DC7061) SCSI */
+#define DEC_IRQ_TC0 16 /* TURBOchannel slot #0 */
+#define DEC_IRQ_TC1 17 /* TURBOchannel slot #1 */
+#define DEC_IRQ_TC2 18 /* TURBOchannel slot #2 */
+#define DEC_IRQ_TIMER 19 /* ARC periodic timer */
+#define DEC_IRQ_VIDEO 20 /* framebuffer */
+
+/* I/O ASIC DMA interrupts */
+#define DEC_IRQ_ASC_MERR 21 /* ASC memory read error */
+#define DEC_IRQ_ASC_ERR 22 /* ASC page overrun */
+#define DEC_IRQ_ASC_DMA 23 /* ASC buffer pointer loaded */
+#define DEC_IRQ_FLOPPY_ERR 24 /* FDC error */
+#define DEC_IRQ_ISDN_ERR 25 /* ISDN memory read/overrun error */
+#define DEC_IRQ_ISDN_RXDMA 26 /* ISDN recv buffer pointer loaded */
+#define DEC_IRQ_ISDN_TXDMA 27 /* ISDN xmit buffer pointer loaded */
+#define DEC_IRQ_LANCE_MERR 28 /* LANCE memory read error */
+#define DEC_IRQ_SCC0A_RXERR 29 /* SCC0A (printer) receive overrun */
+#define DEC_IRQ_SCC0A_RXDMA 30 /* SCC0A receive half page */
+#define DEC_IRQ_SCC0A_TXERR 31 /* SCC0A xmit memory read/overrun */
+#define DEC_IRQ_SCC0A_TXDMA 32 /* SCC0A transmit page end */
+#define DEC_IRQ_AB_RXERR 33 /* ACCESS.bus receive overrun */
+#define DEC_IRQ_AB_RXDMA 34 /* ACCESS.bus receive half page */
+#define DEC_IRQ_AB_TXERR 35 /* ACCESS.bus xmit memory read/ovrn */
+#define DEC_IRQ_AB_TXDMA 36 /* ACCESS.bus transmit page end */
+#define DEC_IRQ_SCC1A_RXERR 37 /* SCC1A (modem) receive overrun */
+#define DEC_IRQ_SCC1A_RXDMA 38 /* SCC1A receive half page */
+#define DEC_IRQ_SCC1A_TXERR 39 /* SCC1A xmit memory read/overrun */
+#define DEC_IRQ_SCC1A_TXDMA 40 /* SCC1A transmit page end */
+
+/* TC5 & TC6 are virtual slots for KN02's onboard devices */
+#define DEC_IRQ_TC5 DEC_IRQ_ASC /* virtual PMAZ-AA */
+#define DEC_IRQ_TC6 DEC_IRQ_LANCE /* virtual PMAD-AA */
+
+#define DEC_NR_INTS 41
+
+
+/* Largest of cpu mask_nr tables. */
+#define DEC_MAX_CPU_INTS 6
+/* Largest of asic mask_nr tables. */
+#define DEC_MAX_ASIC_INTS 9
+
+
+/*
+ * CPU interrupt bits common to all systems.
+ */
+#define DEC_CPU_INR_FPU 7 /* R3k FPU */
+#define DEC_CPU_INR_SW1 1 /* software #1 */
+#define DEC_CPU_INR_SW0 0 /* software #0 */
+
+#define DEC_CPU_IRQ_BASE MIPS_CPU_IRQ_BASE /* first IRQ assigned to CPU */
+
+#define DEC_CPU_IRQ_NR(n) ((n) + DEC_CPU_IRQ_BASE)
+#define DEC_CPU_IRQ_MASK(n) (1 << ((n) + CAUSEB_IP))
+#define DEC_CPU_IRQ_ALL (0xff << CAUSEB_IP)
+
+
+#ifndef __ASSEMBLY__
+
+/*
+ * Interrupt table structures to hide differences between systems.
+ */
+typedef union { int i; void *p; } int_ptr;
+extern int dec_interrupt[DEC_NR_INTS];
+extern int_ptr cpu_mask_nr_tbl[DEC_MAX_CPU_INTS][2];
+extern int_ptr asic_mask_nr_tbl[DEC_MAX_ASIC_INTS][2];
+extern int cpu_fpu_mask;
+
+
+/*
+ * Common interrupt routine prototypes for all DECStations
+ */
+extern void kn02_io_int(void);
+extern void kn02xa_io_int(void);
+extern void kn03_io_int(void);
+extern void asic_dma_int(void);
+extern void asic_all_int(void);
+extern void kn02_all_int(void);
+extern void cpu_all_int(void);
+
+extern void dec_intr_unimplemented(void);
+extern void asic_intr_unimplemented(void);
+
+#endif /* __ASSEMBLY__ */
+
+#endif
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