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 * The intrmask_t has to be wide enough to hold any value used by the platform, 45 * u_long would be best type, but use fixed 32bit type for historic reasons. 46 */ 47 #ifndef _INTRMASK_T_DECLARED 48 #define _INTRMASK_T_DECLARED 49 typedef __uint32_t intrmask_t; /* Interrupt mask (spl, xxx_imask, etc) */ 50 #endif 51 52 /* 53 * ISA devices are partially ordered to ensure that devices which are 54 * sensitive to other driver probe routines are probed first. Plug and 55 * Play devices are added after devices with speculative probes so that 56 * the legacy hardware can claim resources allowing the Plug and Play 57 * hardware to choose different resources. 58 */ 59 #define ISA_ORDER_SENSITIVE 0 /* legacy sensitive hardware */ 60 #define ISA_ORDER_SPECULATIVE 1 /* legacy non-sensitive hardware */ 61 #define ISA_ORDER_PNP 2 /* plug-and-play hardware */ 62 63 #define ISA_NPORT 50 64 #define ISA_NMEM 8 65 #define ISA_NIRQ 2 66 #define ISA_NDRQ 2 67 68 #define ISADMA_READ 0x00000001 69 #define ISADMA_WRITE 0x00000002 70 #define ISADMA_RAW 0x00000004 71 72 /* 73 * Plug and play cards can support a range of resource 74 * configurations. This structure is used by the isapnp parser to 75 * inform the isa bus about the resource possibilities of the 76 * device. Each different alternative should be supplied by calling 77 * ISA_ADD_CONFIG(). 78 */ 79 struct isa_range { 80 u_int32_t ir_start; 81 u_int32_t ir_end; 82 u_int32_t ir_size; 83 u_int32_t ir_align; 84 }; 85 86 struct isa_config { 87 struct isa_range ic_mem[ISA_NMEM]; 88 struct isa_range ic_port[ISA_NPORT]; 89 u_int32_t ic_irqmask[ISA_NIRQ]; 90 u_int32_t ic_drqmask[ISA_NDRQ]; 91 int ic_nmem; 92 int ic_nport; 93 int ic_nirq; 94 int ic_ndrq; 95 }; 96 97 /* 98 * Used to build lists of IDs and description strings for PnP drivers. 99 */ 100 struct isa_pnp_id { 101 u_int32_t ip_id; 102 const char *ip_desc; 103 }; 104 105 enum isa_device_ivars { 106 ISA_IVAR_PORT, 107 ISA_IVAR_PORT_0 = ISA_IVAR_PORT, 108 ISA_IVAR_PORT_1, 109 ISA_IVAR_PORTSIZE, 110 ISA_IVAR_PORTSIZE_0 = ISA_IVAR_PORTSIZE, 111 ISA_IVAR_PORTSIZE_1, 112 ISA_IVAR_MADDR, 113 ISA_IVAR_MADDR_0 = ISA_IVAR_MADDR, 114 ISA_IVAR_MADDR_1, 115 ISA_IVAR_MSIZE, 116 ISA_IVAR_MSIZE_0 = ISA_IVAR_MSIZE, 117 ISA_IVAR_MSIZE_1, 118 ISA_IVAR_IRQ, 119 ISA_IVAR_IRQ_0 = ISA_IVAR_IRQ, 120 ISA_IVAR_IRQ_1, 121 ISA_IVAR_DRQ, 122 ISA_IVAR_DRQ_0 = ISA_IVAR_DRQ, 123 ISA_IVAR_DRQ_1, 124 ISA_IVAR_VENDORID, 125 ISA_IVAR_SERIAL, 126 ISA_IVAR_LOGICALID, 127 ISA_IVAR_COMPATID, 128 ISA_IVAR_CONFIGATTR 129 }; 130 131 /* 132 * ISA_IVAR_CONFIGATTR bits 133 */ 134 #define ISACFGATTR_CANDISABLE (1 << 0) /* can be disabled */ 135 #define ISACFGATTR_DYNAMIC (1 << 1) /* dynamic configuration */ 136 #define ISACFGATTR_MULTI (1 << 2) /* multiple configurations */ 137 138 /* 139 * Simplified accessors for isa devices 140 */ 141 #define ISA_ACCESSOR(A, B, T) \ 142 \ 143 static __inline T isa_get_ ## A(device_t dev) \ 144 { \ 145 uintptr_t v; \ 146 BUS_READ_IVAR(device_get_parent(dev), dev, ISA_IVAR_ ## B, &v); \ 147 return (T) v; \ 148 } \ 149 \ 150 static __inline void isa_set_ ## A(device_t dev, T t) \ 151 { \ 152 u_long v = (u_long) t; \ 153 BUS_WRITE_IVAR(device_get_parent(dev), dev, ISA_IVAR_ ## B, v); \ 154 } 155 156 ISA_ACCESSOR(port, PORT, int) 157 ISA_ACCESSOR(portsize, PORTSIZE, int) 158 ISA_ACCESSOR(irq, IRQ, int) 159 ISA_ACCESSOR(drq, DRQ, int) 160 ISA_ACCESSOR(maddr, MADDR, int) 161 ISA_ACCESSOR(msize, MSIZE, int) 162 ISA_ACCESSOR(vendorid, VENDORID, int) 163 ISA_ACCESSOR(serial, SERIAL, int) 164 ISA_ACCESSOR(logicalid, LOGICALID, int) 165 ISA_ACCESSOR(compatid, COMPATID, int) 166 ISA_ACCESSOR(configattr, CONFIGATTR, int) 167 168 /* Device class for ISA bridges. */ 169 extern devclass_t isab_devclass; 170 171 extern intrmask_t isa_irq_pending(void); 172 extern void isa_probe_children(device_t dev); 173 174 extern void isa_dmacascade (int chan); 175 extern void isa_dmadone (int flags, caddr_t addr, int nbytes, int chan); 176 extern int isa_dma_init (int chan, u_int bouncebufsize, int flags); 177 extern void isa_dmastart (int flags, caddr_t addr, u_int nbytes, int chan); 178 extern int isa_dma_acquire (int chan); 179 extern void isa_dma_release (int chan); 180 extern int isa_dmastatus (int chan); 181 extern int isa_dmastop (int chan); 182 unsigned isa_dmabp (struct buf *); 183 184 int isab_attach(device_t dev); 185 186 #define isa_dmainit(chan, size) do { \ 187 if (isa_dma_init(chan, size, M_NOWAIT)) \ 188 kprintf("WARNING: isa_dma_init(%d, %ju) failed\n", \ 189 (int)(chan), (uintmax_t)(size)); \ 190 } while (0) 191 192 #endif /* _KERNEL */ 193 194 #endif /* !_ISA_ISAVAR_H_ */ 195