1 /*- 2 * Copyright (c) 1998 Doug Rabson 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 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. 13 * 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 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD: src/sys/isa/isavar.h,v 1.16.2.2 2000/10/29 13:07:56 nyan Exp $ 27 * $DragonFly: src/sys/bus/isa/isavar.h,v 1.9 2006/04/30 17:22:15 dillon Exp $ 28 */ 29 30 #ifndef _ISA_ISAVAR_H_ 31 #define _ISA_ISAVAR_H_ 32 33 struct buf; 34 struct isa_config; 35 struct isa_pnp_id; 36 37 typedef void isa_config_cb(void *arg, struct isa_config *config, int enable); 38 39 #include "isa_if.h" 40 #include "pnpvar.h" 41 42 #ifdef _KERNEL 43 44 /* 45 * ISA devices are partially ordered to ensure that devices which are 46 * sensitive to other driver probe routines are probed first. Plug and 47 * Play devices are added after devices with speculative probes so that 48 * the legacy hardware can claim resources allowing the Plug and Play 49 * hardware to choose different resources. 50 */ 51 #define ISA_ORDER_SENSITIVE 0 /* legacy sensitive hardware */ 52 #define ISA_ORDER_SPECULATIVE 1 /* legacy non-sensitive hardware */ 53 #define ISA_ORDER_PNP 2 /* plug-and-play hardware */ 54 55 #define ISA_NPORT 50 56 #define ISA_NMEM 8 57 #define ISA_NIRQ 2 58 #define ISA_NDRQ 2 59 60 #define ISADMA_READ 0x00000001 61 #define ISADMA_WRITE 0x00000002 62 #define ISADMA_RAW 0x00000004 63 64 /* 65 * Plug and play cards can support a range of resource 66 * configurations. This structure is used by the isapnp parser to 67 * inform the isa bus about the resource possibilities of the 68 * device. Each different alternative should be supplied by calling 69 * ISA_ADD_CONFIG(). 70 */ 71 struct isa_range { 72 u_int32_t ir_start; 73 u_int32_t ir_end; 74 u_int32_t ir_size; 75 u_int32_t ir_align; 76 }; 77 78 struct isa_config { 79 struct isa_range ic_mem[ISA_NMEM]; 80 struct isa_range ic_port[ISA_NPORT]; 81 u_int32_t ic_irqmask[ISA_NIRQ]; 82 u_int32_t ic_drqmask[ISA_NDRQ]; 83 int ic_nmem; 84 int ic_nport; 85 int ic_nirq; 86 int ic_ndrq; 87 }; 88 89 /* 90 * Used to build lists of IDs and description strings for PnP drivers. 91 */ 92 struct isa_pnp_id { 93 u_int32_t ip_id; 94 const char *ip_desc; 95 }; 96 97 enum isa_device_ivars { 98 ISA_IVAR_PORT, 99 ISA_IVAR_PORT_0 = ISA_IVAR_PORT, 100 ISA_IVAR_PORT_1, 101 ISA_IVAR_PORTSIZE, 102 ISA_IVAR_PORTSIZE_0 = ISA_IVAR_PORTSIZE, 103 ISA_IVAR_PORTSIZE_1, 104 ISA_IVAR_MADDR, 105 ISA_IVAR_MADDR_0 = ISA_IVAR_MADDR, 106 ISA_IVAR_MADDR_1, 107 ISA_IVAR_MSIZE, 108 ISA_IVAR_MSIZE_0 = ISA_IVAR_MSIZE, 109 ISA_IVAR_MSIZE_1, 110 ISA_IVAR_IRQ, 111 ISA_IVAR_IRQ_0 = ISA_IVAR_IRQ, 112 ISA_IVAR_IRQ_1, 113 ISA_IVAR_DRQ, 114 ISA_IVAR_DRQ_0 = ISA_IVAR_DRQ, 115 ISA_IVAR_DRQ_1, 116 ISA_IVAR_VENDORID, 117 ISA_IVAR_SERIAL, 118 ISA_IVAR_LOGICALID, 119 ISA_IVAR_COMPATID, 120 ISA_IVAR_CONFIGATTR 121 }; 122 123 /* 124 * ISA_IVAR_CONFIGATTR bits 125 */ 126 #define ISACFGATTR_CANDISABLE (1 << 0) /* can be disabled */ 127 #define ISACFGATTR_DYNAMIC (1 << 1) /* dynamic configuration */ 128 #define ISACFGATTR_MULTI (1 << 2) /* multiple configurations */ 129 130 /* 131 * Simplified accessors for isa devices 132 */ 133 #define ISA_ACCESSOR(A, B, T) \ 134 \ 135 static __inline T isa_get_ ## A(device_t dev) \ 136 { \ 137 uintptr_t v; \ 138 BUS_READ_IVAR(device_get_parent(dev), dev, ISA_IVAR_ ## B, &v); \ 139 return (T) v; \ 140 } \ 141 \ 142 static __inline void isa_set_ ## A(device_t dev, T t) \ 143 { \ 144 u_long v = (u_long) t; \ 145 BUS_WRITE_IVAR(device_get_parent(dev), dev, ISA_IVAR_ ## B, v); \ 146 } 147 148 ISA_ACCESSOR(port, PORT, int) 149 ISA_ACCESSOR(portsize, PORTSIZE, int) 150 ISA_ACCESSOR(irq, IRQ, int) 151 ISA_ACCESSOR(drq, DRQ, int) 152 ISA_ACCESSOR(maddr, MADDR, int) 153 ISA_ACCESSOR(msize, MSIZE, int) 154 ISA_ACCESSOR(vendorid, VENDORID, int) 155 ISA_ACCESSOR(serial, SERIAL, int) 156 ISA_ACCESSOR(logicalid, LOGICALID, int) 157 ISA_ACCESSOR(compatid, COMPATID, int) 158 ISA_ACCESSOR(configattr, CONFIGATTR, int) 159 160 /* Device class for ISA bridges. */ 161 extern devclass_t isab_devclass; 162 163 extern intrmask_t isa_irq_pending(void); 164 extern intrmask_t isa_irq_mask(void); 165 #ifdef __i386__ 166 extern void isa_wrap_old_drivers(void); 167 #endif 168 extern void isa_probe_children(device_t dev); 169 170 extern void isa_dmacascade (int chan); 171 extern void isa_dmadone (int flags, caddr_t addr, int nbytes, int chan); 172 extern void isa_dmainit (int chan, u_int bouncebufsize); 173 extern void isa_dmastart (int flags, caddr_t addr, u_int nbytes, int chan); 174 extern int isa_dma_acquire (int chan); 175 extern void isa_dma_release (int chan); 176 extern int isa_dmastatus (int chan); 177 extern int isa_dmastop (int chan); 178 unsigned isa_dmabp (struct buf *); 179 180 int isab_attach(device_t dev); 181 182 #endif /* _KERNEL */ 183 184 #endif /* !_ISA_ISAVAR_H_ */ 185