/* $OpenBSD: isavar.h,v 1.22 1997/10/13 14:46:45 pefo Exp $ */ /* $NetBSD: isavar.h,v 1.24 1996/10/21 22:41:11 thorpej Exp $ */ /* * Copyright (c) 1995 Chris G. Demetriou * Copyright (c) 1992 Berkeley Software Design, Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Berkeley Software * Design, Inc. * 4. The name of Berkeley Software Design must not be used to endorse * or promote products derived from this software without specific * prior written permission. * * THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN, INC. ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL BERKELEY SOFTWARE DESIGN, INC. BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * BSDI Id: isavar.h,v 1.5 1992/12/01 18:06:00 karels Exp */ #ifndef _DEV_ISA_ISAVAR_H_ #define _DEV_ISA_ISAVAR_H_ /* * Definitions for ISA autoconfiguration. */ #include #include /* * Structures and definitions needed by the machine-dependent header. */ struct isabus_attach_args; #if (alpha + amiga + i386 + arc + wgrisc + power4e != 1) ERROR: COMPILING FOR UNSUPPORTED MACHINE, OR MORE THAN ONE. #endif #if alpha #include #endif #if amiga #include #endif #if i386 #include #endif #if arc #include #endif #if wgrisc #include #endif #if power4e #include #endif /* * ISA bus attach arguments */ struct isabus_attach_args { char *iba_busname; /* XXX should be common */ bus_space_tag_t iba_iot; /* isa i/o space tag */ bus_space_tag_t iba_memt; /* isa mem space tag */ isa_chipset_tag_t iba_ic; }; /* * ISA driver attach arguments */ struct isa_attach_args { bus_space_tag_t ia_iot; /* isa i/o space tag */ bus_space_tag_t ia_memt; /* isa mem space tag */ isa_chipset_tag_t ia_ic; int ia_iobase; /* base i/o address */ int ia_iosize; /* span of ports used */ int ia_irq; /* interrupt request */ int ia_drq; /* DMA request */ int ia_maddr; /* physical i/o mem addr */ u_int ia_msize; /* size of i/o memory */ void *ia_aux; /* driver specific */ bus_space_handle_t ia_delaybah; /* i/o handle for `delay port' */ /* XXX need fixes, some are duplicated */ /* begin isapnp section */ int id; /* logical device ID */ int comp_id; /* compatible device ID */ int csn; /* card selection number */ int ldn; /* logical device number */ struct { int num; int type; } irq[2]; int drq[2]; int port[8]; struct { int base; int control; int range; } mem[4]; /* end isapnp stuff */ }; #define IOBASEUNK -1 /* i/o address is unknown */ #define IRQUNK -1 /* interrupt request line is unknown */ #define DRQUNK -1 /* DMA request line is unknown */ #define MADDRUNK -1 /* shared memory address is unknown */ /* * Per-device ISA variables */ struct isadev { struct device *id_dev; /* back pointer to generic */ TAILQ_ENTRY(isadev) id_bchain; /* bus chain */ }; /* * ISA master bus */ struct isa_softc { struct device sc_dev; /* base device */ TAILQ_HEAD(, isadev) sc_subdevs; /* list of all children */ bus_space_tag_t sc_iot; /* isa io space tag */ bus_space_tag_t sc_memt; /* isa mem space tag */ isa_chipset_tag_t sc_ic; /* * This i/o handle is used to map port 0x84, which is * read to provide a 1.25us delay. This access handle * is mapped in isaattach(), and exported to drivers * via isa_attach_args. */ bus_space_handle_t sc_delaybah; /* * This points to the isapnp_softc structure that holds * information of PnP devices on the ISA bus. */ void *pnpsc; }; #define cf_iobase cf_loc[0] #define cf_iosize cf_loc[1] #define cf_maddr cf_loc[2] #define cf_msize cf_loc[3] #define cf_irq cf_loc[4] #define cf_drq cf_loc[5] #define cf_pnpid cf_loc[6] /* * ISA interrupt handler manipulation. * * To establish an ISA interrupt handler, a driver calls isa_intr_establish() * with the interrupt number, type, level, function, and function argument of * the interrupt it wants to handle. Isa_intr_establish() returns an opaque * handle to an event descriptor if it succeeds, and invokes panic() if it * fails. (XXX It should return NULL, then drivers should handle that, but * what should they do?) Interrupt handlers should return 0 for "interrupt * not for me", 1 for "I took care of it", or -1 for "I guess it was mine, * but I wasn't expecting it." * * To remove an interrupt handler, the driver calls isa_intr_disestablish() * with the handle returned by isa_intr_establish() for that handler. */ /* ISA interrupt sharing types */ char *isa_intr_typename __P((int type)); void isascan __P((struct device *parent, void *match)); int isaprint __P((void *, const char *)); #ifdef NEWCONFIG /* * Establish a device as being on the ISA bus (XXX NOT IMPLEMENTED). */ void isa_establish __P((struct isadev *, struct device *)); #endif #endif /* _DEV_ISA_ISAVAR_H_ */