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 * $FreeBSD$ 27 */ 28 29 #ifndef _ISA_ISAVAR_H_ 30 #define _ISA_ISAVAR_H_ 31 32 struct isa_config; 33 struct isa_pnp_id; 34 typedef void isa_config_cb(void *arg, struct isa_config *config, int enable); 35 36 #include "isa_if.h" 37 #include <isa/pnpvar.h> 38 39 #ifdef _KERNEL 40 41 /* 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. 47 */ 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 */ 51 52 #define ISA_NPORT 50 53 #define ISA_NMEM 8 54 #define ISA_NIRQ 2 55 #define ISA_NDRQ 2 56 57 #define ISADMA_READ 0x00100000 58 #define ISADMA_WRITE 0 59 #define ISADMA_RAW 0x00080000 60 /* 61 * Plug and play cards can support a range of resource 62 * configurations. This structure is used by the isapnp parser to 63 * inform the isa bus about the resource possibilities of the 64 * device. Each different alternative should be supplied by calling 65 * ISA_ADD_CONFIG(). 66 */ 67 struct isa_range { 68 u_int32_t ir_start; 69 u_int32_t ir_end; 70 u_int32_t ir_size; 71 u_int32_t ir_align; 72 }; 73 74 struct isa_config { 75 struct isa_range ic_mem[ISA_NMEM]; 76 struct isa_range ic_port[ISA_NPORT]; 77 u_int32_t ic_irqmask[ISA_NIRQ]; 78 u_int32_t ic_drqmask[ISA_NDRQ]; 79 int ic_nmem; 80 int ic_nport; 81 int ic_nirq; 82 int ic_ndrq; 83 }; 84 85 /* 86 * Used to build lists of IDs and description strings for PnP drivers. 87 */ 88 struct isa_pnp_id { 89 u_int32_t ip_id; 90 const char *ip_desc; 91 }; 92 93 enum isa_device_ivars { 94 ISA_IVAR_PORT, 95 ISA_IVAR_PORT_0 = ISA_IVAR_PORT, 96 ISA_IVAR_PORT_1, 97 ISA_IVAR_PORTSIZE, 98 ISA_IVAR_PORTSIZE_0 = ISA_IVAR_PORTSIZE, 99 ISA_IVAR_PORTSIZE_1, 100 ISA_IVAR_MADDR, 101 ISA_IVAR_MADDR_0 = ISA_IVAR_MADDR, 102 ISA_IVAR_MADDR_1, 103 ISA_IVAR_MSIZE, 104 ISA_IVAR_MSIZE_0 = ISA_IVAR_MSIZE, 105 ISA_IVAR_MSIZE_1, 106 ISA_IVAR_IRQ, 107 ISA_IVAR_IRQ_0 = ISA_IVAR_IRQ, 108 ISA_IVAR_IRQ_1, 109 ISA_IVAR_DRQ, 110 ISA_IVAR_DRQ_0 = ISA_IVAR_DRQ, 111 ISA_IVAR_DRQ_1, 112 ISA_IVAR_VENDORID, 113 ISA_IVAR_SERIAL, 114 ISA_IVAR_LOGICALID, 115 ISA_IVAR_COMPATID 116 }; 117 118 /* 119 * Simplified accessors for isa devices 120 */ 121 #define ISA_ACCESSOR(A, B, T) \ 122 \ 123 static __inline T isa_get_ ## A(device_t dev) \ 124 { \ 125 uintptr_t v; \ 126 BUS_READ_IVAR(device_get_parent(dev), dev, ISA_IVAR_ ## B, &v); \ 127 return (T) v; \ 128 } \ 129 \ 130 static __inline void isa_set_ ## A(device_t dev, T t) \ 131 { \ 132 u_long v = (u_long) t; \ 133 BUS_WRITE_IVAR(device_get_parent(dev), dev, ISA_IVAR_ ## B, v); \ 134 } 135 136 ISA_ACCESSOR(port, PORT, int) 137 ISA_ACCESSOR(portsize, PORTSIZE, int) 138 ISA_ACCESSOR(irq, IRQ, int) 139 ISA_ACCESSOR(drq, DRQ, int) 140 ISA_ACCESSOR(maddr, MADDR, int) 141 ISA_ACCESSOR(msize, MSIZE, int) 142 ISA_ACCESSOR(vendorid, VENDORID, int) 143 ISA_ACCESSOR(serial, SERIAL, int) 144 ISA_ACCESSOR(logicalid, LOGICALID, int) 145 ISA_ACCESSOR(compatid, COMPATID, int) 146 147 extern intrmask_t isa_irq_pending(void); 148 extern intrmask_t isa_irq_mask(void); 149 #ifdef __i386__ 150 extern void isa_wrap_old_drivers(void); 151 #endif 152 extern void isa_probe_children(device_t dev); 153 154 extern void isa_dmacascade __P((int chan)); 155 extern void isa_dmadone __P((int flags, caddr_t addr, int nbytes, int chan)); 156 extern void isa_dmainit __P((int chan, u_int bouncebufsize)); 157 extern void isa_dmastart __P((int flags, caddr_t addr, u_int nbytes, int chan)); 158 extern int isa_dma_acquire __P((int chan)); 159 extern void isa_dma_release __P((int chan)); 160 extern int isa_dmastatus __P((int chan)); 161 extern int isa_dmastop __P((int chan)); 162 163 #endif /* _KERNEL */ 164 165 #endif /* !_ISA_ISAVAR_H_ */ 166