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/*
* 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.
*
* Definitions for the interrupt related bits in the I/O ASIC
* interrupt status register (and the interrupt mask register, of course)
*
* Created with Information from:
*
* "DEC 3000 300/400/500/600/700/800/900 AXP Models System Programmer's Manual"
*
* and the Mach Sources
*
* Copyright (C) 199x the Anonymous
* Copyright (C) 2002 Maciej W. Rozycki
*/
#ifndef __ASM_DEC_IOASIC_INTS_H
#define __ASM_DEC_IOASIC_INTS_H
/*
* The upper 16 bits are a part of the I/O ASIC's internal DMA engine
* and thus are common to all I/O ASIC machines. The exception is
* the Maxine, which makes use of the FLOPPY and ISDN bits (otherwise
* unused) and has a different SCC wiring.
*/
/* all systems */
#define IO_INR_SCC0A_TXDMA 31 /* SCC0A transmit page end */
#define IO_INR_SCC0A_TXERR 30 /* SCC0A transmit memory read error */
#define IO_INR_SCC0A_RXDMA 29 /* SCC0A receive half page */
#define IO_INR_SCC0A_RXERR 28 /* SCC0A receive overrun */
#define IO_INR_ASC_DMA 19 /* ASC buffer pointer loaded */
#define IO_INR_ASC_ERR 18 /* ASC page overrun */
#define IO_INR_ASC_MERR 17 /* ASC memory read error */
#define IO_INR_LANCE_MERR 16 /* LANCE memory read error */
/* except Maxine */
#define IO_INR_SCC1A_TXDMA 27 /* SCC1A transmit page end */
#define IO_INR_SCC1A_TXERR 26 /* SCC1A transmit memory read error */
#define IO_INR_SCC1A_RXDMA 25 /* SCC1A receive half page */
#define IO_INR_SCC1A_RXERR 24 /* SCC1A receive overrun */
#define IO_INR_RES_23 23 /* unused */
#define IO_INR_RES_22 22 /* unused */
#define IO_INR_RES_21 21 /* unused */
#define IO_INR_RES_20 20 /* unused */
/* Maxine */
#define IO_INR_AB_TXDMA 27 /* ACCESS.bus transmit page end */
#define IO_INR_AB_TXERR 26 /* ACCESS.bus xmit memory read error */
#define IO_INR_AB_RXDMA 25 /* ACCESS.bus receive half page */
#define IO_INR_AB_RXERR 24 /* ACCESS.bus receive overrun */
#define IO_INR_FLOPPY_ERR 23 /* FDC error */
#define IO_INR_ISDN_TXDMA 22 /* ISDN xmit buffer pointer loaded */
#define IO_INR_ISDN_RXDMA 21 /* ISDN recv buffer pointer loaded */
#define IO_INR_ISDN_ERR 20 /* ISDN memory read/overrun error */
#define IO_INR_DMA 16 /* first DMA IRQ */
/*
* The lower 16 bits are system-specific and thus defined in
* system-specific headers.
*/
#define IO_IRQ_BASE 8 /* first IRQ assigned to I/O ASIC */
#define IO_IRQ_LINES 32 /* number of I/O ASIC interrupts */
#define IO_IRQ_NR(n) ((n) + IO_IRQ_BASE)
#define IO_IRQ_MASK(n) (1 << (n))
#define IO_IRQ_ALL 0x0000ffff
#define IO_IRQ_DMA 0xffff0000
#endif /* __ASM_DEC_IOASIC_INTS_H */
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