190 lines
5.4 KiB
C
190 lines
5.4 KiB
C
/*-
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* Copyright (c) 1998 Doug Rabson
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _ISA_ISAVAR_H_
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#define _ISA_ISAVAR_H_
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struct isa_config;
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struct isa_pnp_id;
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typedef void isa_config_cb(void *arg, struct isa_config *config, int enable);
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#include "isa_if.h"
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#include <isa/pnpvar.h>
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#ifdef _KERNEL
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/*
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* ISA devices are partially ordered to ensure that devices which are
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* sensitive to other driver probe routines are probed first. Plug and
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* Play devices are added after devices with speculative probes so that
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* the legacy hardware can claim resources allowing the Plug and Play
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* hardware to choose different resources.
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*/
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#define ISA_ORDER_SENSITIVE 0 /* legacy sensitive hardware */
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#define ISA_ORDER_SPECULATIVE 1 /* legacy non-sensitive hardware */
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#define ISA_ORDER_PNP 2 /* plug-and-play hardware */
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/*
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* Limits on resources that we can manage
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*/
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#define ISA_NPORT 50
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#define ISA_NMEM 50
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#define ISA_NIRQ 50
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#define ISA_NDRQ 50
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/*
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* Limits on resources the hardware can actually handle
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*/
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#define ISA_PNP_NPORT 8
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#define ISA_PNP_NMEM 4
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#define ISA_PNP_NIRQ 2
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#define ISA_PNP_NDRQ 2
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#define ISADMA_READ 0x00100000
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#define ISADMA_WRITE 0
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#define ISADMA_RAW 0x00080000
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/*
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* Plug and play cards can support a range of resource
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* configurations. This structure is used by the isapnp parser to
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* inform the isa bus about the resource possibilities of the
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* device. Each different alternative should be supplied by calling
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* ISA_ADD_CONFIG().
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*/
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struct isa_range {
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u_int32_t ir_start;
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u_int32_t ir_end;
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u_int32_t ir_size;
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u_int32_t ir_align;
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};
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struct isa_config {
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struct isa_range ic_mem[ISA_NMEM];
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struct isa_range ic_port[ISA_NPORT];
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u_int32_t ic_irqmask[ISA_NIRQ];
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u_int32_t ic_drqmask[ISA_NDRQ];
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int ic_nmem;
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int ic_nport;
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int ic_nirq;
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int ic_ndrq;
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};
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/*
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* Used to build lists of IDs and description strings for PnP drivers.
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*/
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struct isa_pnp_id {
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u_int32_t ip_id;
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const char *ip_desc;
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};
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enum isa_device_ivars {
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ISA_IVAR_PORT,
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ISA_IVAR_PORT_0 = ISA_IVAR_PORT,
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ISA_IVAR_PORT_1,
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ISA_IVAR_PORTSIZE,
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ISA_IVAR_PORTSIZE_0 = ISA_IVAR_PORTSIZE,
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ISA_IVAR_PORTSIZE_1,
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ISA_IVAR_MADDR,
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ISA_IVAR_MADDR_0 = ISA_IVAR_MADDR,
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ISA_IVAR_MADDR_1,
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ISA_IVAR_MSIZE,
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ISA_IVAR_MSIZE_0 = ISA_IVAR_MSIZE,
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ISA_IVAR_MSIZE_1,
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ISA_IVAR_IRQ,
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ISA_IVAR_IRQ_0 = ISA_IVAR_IRQ,
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ISA_IVAR_IRQ_1,
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ISA_IVAR_DRQ,
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ISA_IVAR_DRQ_0 = ISA_IVAR_DRQ,
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ISA_IVAR_DRQ_1,
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ISA_IVAR_VENDORID,
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ISA_IVAR_SERIAL,
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ISA_IVAR_LOGICALID,
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ISA_IVAR_COMPATID
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};
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/*
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* Simplified accessors for isa devices
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*/
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#define ISA_ACCESSOR(A, B, T) \
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\
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static __inline T isa_get_ ## A(device_t dev) \
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{ \
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uintptr_t v; \
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BUS_READ_IVAR(device_get_parent(dev), dev, ISA_IVAR_ ## B, &v); \
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return (T) v; \
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} \
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\
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static __inline void isa_set_ ## A(device_t dev, T t) \
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{ \
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u_long v = (u_long) t; \
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BUS_WRITE_IVAR(device_get_parent(dev), dev, ISA_IVAR_ ## B, v); \
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}
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ISA_ACCESSOR(port, PORT, int)
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ISA_ACCESSOR(portsize, PORTSIZE, int)
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ISA_ACCESSOR(irq, IRQ, int)
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ISA_ACCESSOR(drq, DRQ, int)
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ISA_ACCESSOR(maddr, MADDR, int)
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ISA_ACCESSOR(msize, MSIZE, int)
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ISA_ACCESSOR(vendorid, VENDORID, int)
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ISA_ACCESSOR(serial, SERIAL, int)
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ISA_ACCESSOR(logicalid, LOGICALID, int)
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ISA_ACCESSOR(compatid, COMPATID, int)
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extern intrmask_t isa_irq_pending(void);
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extern intrmask_t isa_irq_mask(void);
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#ifdef __i386__
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extern void isa_wrap_old_drivers(void);
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#endif
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extern void isa_probe_children(device_t dev);
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extern void isa_dmacascade __P((int chan));
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extern void isa_dmadone __P((int flags, caddr_t addr, int nbytes, int chan));
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extern void isa_dmainit __P((int chan, u_int bouncebufsize));
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extern void isa_dmastart __P((int flags, caddr_t addr, u_int nbytes, int chan));
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extern int isa_dma_acquire __P((int chan));
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extern void isa_dma_release __P((int chan));
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extern int isa_dmastatus __P((int chan));
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extern int isa_dmastop __P((int chan));
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#ifdef PC98
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#include <machine/bus.h>
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/*
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* Allocate discontinuous resources for ISA bus.
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*/
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struct resource *
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isa_alloc_resourcev(device_t child, int type, int *rid,
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bus_addr_t *res, bus_size_t count, u_int flags);
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int
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isa_load_resourcev(struct resource *re, bus_addr_t *res, bus_size_t count);
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#endif
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#endif /* _KERNEL */
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#endif /* !_ISA_ISAVAR_H_ */
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