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 */ 28 29 #ifndef _ISA_ISAVAR_H_ 30 #define _ISA_ISAVAR_H_ 31 32 struct buf; 33 struct isa_config; 34 struct isa_pnp_id; 35 36 typedef void isa_config_cb(void *arg, struct isa_config *config, int enable); 37 38 #include "isa_if.h" 39 #include "pnpvar.h" 40 41 #ifdef _KERNEL 42 43 /* 44 * ISA devices are partially ordered to ensure that devices which are 45 * sensitive to other driver probe routines are probed first. Plug and 46 * Play devices are added after devices with speculative probes so that 47 * the legacy hardware can claim resources allowing the Plug and Play 48 * hardware to choose different resources. 49 */ 50 #define ISA_ORDER_SENSITIVE 0 /* legacy sensitive hardware */ 51 #define ISA_ORDER_SPECULATIVE 1 /* legacy non-sensitive hardware */ 52 #define ISA_ORDER_PNP 2 /* plug-and-play hardware */ 53 54 #define ISA_NPORT 50 55 #define ISA_NMEM 8 56 #define ISA_NIRQ 2 57 #define ISA_NDRQ 2 58 59 #define ISADMA_READ 0x00000001 60 #define ISADMA_WRITE 0x00000002 61 #define ISADMA_RAW 0x00000004 62 63 /* 64 * Plug and play cards can support a range of resource 65 * configurations. This structure is used by the isapnp parser to 66 * inform the isa bus about the resource possibilities of the 67 * device. Each different alternative should be supplied by calling 68 * ISA_ADD_CONFIG(). 69 */ 70 struct isa_range { 71 u_int32_t ir_start; 72 u_int32_t ir_end; 73 u_int32_t ir_size; 74 u_int32_t ir_align; 75 }; 76 77 struct isa_config { 78 struct isa_range ic_mem[ISA_NMEM]; 79 struct isa_range ic_port[ISA_NPORT]; 80 u_int32_t ic_irqmask[ISA_NIRQ]; 81 u_int32_t ic_drqmask[ISA_NDRQ]; 82 int ic_nmem; 83 int ic_nport; 84 int ic_nirq; 85 int ic_ndrq; 86 }; 87 88 /* 89 * Used to build lists of IDs and description strings for PnP drivers. 90 */ 91 struct isa_pnp_id { 92 u_int32_t ip_id; 93 const char *ip_desc; 94 }; 95 96 enum isa_device_ivars { 97 ISA_IVAR_PORT, 98 ISA_IVAR_PORT_0 = ISA_IVAR_PORT, 99 ISA_IVAR_PORT_1, 100 ISA_IVAR_PORTSIZE, 101 ISA_IVAR_PORTSIZE_0 = ISA_IVAR_PORTSIZE, 102 ISA_IVAR_PORTSIZE_1, 103 ISA_IVAR_MADDR, 104 ISA_IVAR_MADDR_0 = ISA_IVAR_MADDR, 105 ISA_IVAR_MADDR_1, 106 ISA_IVAR_MSIZE, 107 ISA_IVAR_MSIZE_0 = ISA_IVAR_MSIZE, 108 ISA_IVAR_MSIZE_1, 109 ISA_IVAR_IRQ, 110 ISA_IVAR_IRQ_0 = ISA_IVAR_IRQ, 111 ISA_IVAR_IRQ_1, 112 ISA_IVAR_DRQ, 113 ISA_IVAR_DRQ_0 = ISA_IVAR_DRQ, 114 ISA_IVAR_DRQ_1, 115 ISA_IVAR_VENDORID, 116 ISA_IVAR_SERIAL, 117 ISA_IVAR_LOGICALID, 118 ISA_IVAR_COMPATID, 119 ISA_IVAR_CONFIGATTR 120 }; 121 122 /* 123 * ISA_IVAR_CONFIGATTR bits 124 */ 125 #define ISACFGATTR_CANDISABLE (1 << 0) /* can be disabled */ 126 #define ISACFGATTR_DYNAMIC (1 << 1) /* dynamic configuration */ 127 #define ISACFGATTR_MULTI (1 << 2) /* multiple configurations */ 128 129 /* 130 * Simplified accessors for isa devices 131 */ 132 #define ISA_ACCESSOR(A, B, T) \ 133 \ 134 static __inline T isa_get_ ## A(device_t dev) \ 135 { \ 136 uintptr_t v; \ 137 BUS_READ_IVAR(device_get_parent(dev), dev, ISA_IVAR_ ## B, &v); \ 138 return (T) v; \ 139 } \ 140 \ 141 static __inline void isa_set_ ## A(device_t dev, T t) \ 142 { \ 143 u_long v = (u_long) t; \ 144 BUS_WRITE_IVAR(device_get_parent(dev), dev, ISA_IVAR_ ## B, v); \ 145 } 146 147 ISA_ACCESSOR(port, PORT, int) 148 ISA_ACCESSOR(portsize, PORTSIZE, int) 149 ISA_ACCESSOR(irq, IRQ, int) 150 ISA_ACCESSOR(drq, DRQ, int) 151 ISA_ACCESSOR(maddr, MADDR, int) 152 ISA_ACCESSOR(msize, MSIZE, int) 153 ISA_ACCESSOR(vendorid, VENDORID, int) 154 ISA_ACCESSOR(serial, SERIAL, int) 155 ISA_ACCESSOR(logicalid, LOGICALID, int) 156 ISA_ACCESSOR(compatid, COMPATID, int) 157 ISA_ACCESSOR(configattr, CONFIGATTR, int) 158 159 /* Device class for ISA bridges. */ 160 extern devclass_t isab_devclass; 161 162 extern intrmask_t isa_irq_pending(void); 163 extern void isa_probe_children(device_t dev); 164 165 extern void isa_dmacascade (int chan); 166 extern void isa_dmadone (int flags, caddr_t addr, int nbytes, int chan); 167 extern void isa_dmainit (int chan, u_int bouncebufsize); 168 extern void isa_dmastart (int flags, caddr_t addr, u_int nbytes, int chan); 169 extern int isa_dma_acquire (int chan); 170 extern void isa_dma_release (int chan); 171 extern int isa_dmastatus (int chan); 172 extern int isa_dmastop (int chan); 173 unsigned isa_dmabp (struct buf *); 174 175 int isab_attach(device_t dev); 176 177 #endif /* _KERNEL */ 178 179 #endif /* !_ISA_ISAVAR_H_ */ 180