2 * Copyright (c) 1998 Doug Rabson
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #ifndef _ISA_ISAVAR_H_
30 #define _ISA_ISAVAR_H_
34 typedef void isa_config_cb(void *arg, struct isa_config *config, int enable);
37 #include <isa/pnpvar.h>
42 * ISA devices are partially ordered to ensure that devices which are
43 * sensitive to other driver probe routines are probed first. Plug and
44 * Play devices are added after devices with speculative probes so that
45 * the legacy hardware can claim resources allowing the Plug and Play
46 * hardware to choose different resources.
48 #define ISA_ORDER_SENSITIVE 0 /* legacy sensitive hardware */
49 #define ISA_ORDER_SPECULATIVE 1 /* legacy non-sensitive hardware */
50 #define ISA_ORDER_PNP 2 /* plug-and-play hardware */
53 * Limits on resources that we can manage
61 * Limits on resources the hardware can actually handle
63 #define ISA_PNP_NPORT 8
64 #define ISA_PNP_NMEM 4
65 #define ISA_PNP_NIRQ 2
66 #define ISA_PNP_NDRQ 2
68 #define ISADMA_READ 0x00100000
69 #define ISADMA_WRITE 0
70 #define ISADMA_RAW 0x00080000
72 * Plug and play cards can support a range of resource
73 * configurations. This structure is used by the isapnp parser to
74 * inform the isa bus about the resource possibilities of the
75 * device. Each different alternative should be supplied by calling
86 struct isa_range ic_mem[ISA_NMEM];
87 struct isa_range ic_port[ISA_NPORT];
88 u_int32_t ic_irqmask[ISA_NIRQ];
89 u_int32_t ic_drqmask[ISA_NDRQ];
97 * Used to build lists of IDs and description strings for PnP drivers.
104 enum isa_device_ivars {
106 ISA_IVAR_PORT_0 = ISA_IVAR_PORT,
109 ISA_IVAR_PORTSIZE_0 = ISA_IVAR_PORTSIZE,
112 ISA_IVAR_MADDR_0 = ISA_IVAR_MADDR,
115 ISA_IVAR_MSIZE_0 = ISA_IVAR_MSIZE,
118 ISA_IVAR_IRQ_0 = ISA_IVAR_IRQ,
121 ISA_IVAR_DRQ_0 = ISA_IVAR_DRQ,
131 * ISA_IVAR_CONFIGATTR bits
133 #define ISACFGATTR_CANDISABLE (1 << 0) /* can be disabled */
134 #define ISACFGATTR_DYNAMIC (1 << 1) /* dynamic configuration */
135 #define ISACFGATTR_MULTI (1 << 2) /* multiple configurations */
138 * Simplified accessors for isa devices
140 #define ISA_ACCESSOR(A, B, T) \
142 static __inline T isa_get_ ## A(device_t dev) \
145 BUS_READ_IVAR(device_get_parent(dev), dev, ISA_IVAR_ ## B, &v); \
149 static __inline void isa_set_ ## A(device_t dev, T t) \
151 u_long v = (u_long) t; \
152 BUS_WRITE_IVAR(device_get_parent(dev), dev, ISA_IVAR_ ## B, v); \
155 ISA_ACCESSOR(port, PORT, int)
156 ISA_ACCESSOR(portsize, PORTSIZE, int)
157 ISA_ACCESSOR(irq, IRQ, int)
158 ISA_ACCESSOR(drq, DRQ, int)
159 ISA_ACCESSOR(maddr, MADDR, int)
160 ISA_ACCESSOR(msize, MSIZE, int)
161 ISA_ACCESSOR(vendorid, VENDORID, int)
162 ISA_ACCESSOR(serial, SERIAL, int)
163 ISA_ACCESSOR(logicalid, LOGICALID, int)
164 ISA_ACCESSOR(compatid, COMPATID, int)
165 ISA_ACCESSOR(configattr, CONFIGATTR, int)
167 extern intrmask_t isa_irq_pending(void);
168 extern void isa_probe_children(device_t dev);
170 extern void isa_dmacascade __P((int chan));
171 extern void isa_dmadone __P((int flags, caddr_t addr, int nbytes, int chan));
172 extern void isa_dmainit __P((int chan, u_int bouncebufsize));
173 extern void isa_dmastart __P((int flags, caddr_t addr, u_int nbytes, int chan));
174 extern int isa_dma_acquire __P((int chan));
175 extern void isa_dma_release __P((int chan));
176 extern int isa_dmastatus __P((int chan));
177 extern int isa_dmastop __P((int chan));
180 #include <machine/bus.h>
183 * Allocate discontinuous resources for ISA bus.
186 isa_alloc_resourcev(device_t child, int type, int *rid,
187 bus_addr_t *res, bus_size_t count, u_int flags);
189 isa_load_resourcev(struct resource *re, bus_addr_t *res, bus_size_t count);
194 #endif /* !_ISA_ISAVAR_H_ */