/* * 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 __ASSEMBLER__ /* * 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 /* __ASSEMBLER__ */ #endif
