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. This is to ensure that hardwired 43 * devices the BIOS tells us are there appear first, then speculative 44 * devices that are sensitive to the probe order, then devices that 45 * are hinted to be there, then the most flexible devices which support 46 * the ISA bus PNP standard. 47 */ 48 #define ISA_ORDER_PNPBIOS 10 /* plug-and-play BIOS inflexible hardware */ 49 #define ISA_ORDER_SENSITIVE 20 /* legacy sensitive hardware */ 50 #define ISA_ORDER_SPECULATIVE 30 /* legacy non-sensitive hardware */ 51 #define ISA_ORDER_PNP 40 /* plug-and-play hardware */ 52 53 /* 54 * Limits on resources that we can manage 55 */ 56 #define ISA_NPORT 50 57 #define ISA_NMEM 50 58 #define ISA_NIRQ 50 59 #define ISA_NDRQ 50 60 61 /* 62 * Limits on resources the hardware can actually handle 63 */ 64 #define ISA_PNP_NPORT 8 65 #define ISA_PNP_NMEM 4 66 #define ISA_PNP_NIRQ 2 67 #define ISA_PNP_NDRQ 2 68 69 #define ISADMA_READ 0x00100000 70 #define ISADMA_WRITE 0 71 #define ISADMA_RAW 0x00080000 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_MEMSIZE, 116 ISA_IVAR_MEMSIZE_0 = ISA_IVAR_MEMSIZE, 117 ISA_IVAR_MEMSIZE_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 #define ISACFGATTR_HINTS (1 << 3) /* source of config is hints */ 138 139 /* 140 * Simplified accessors for isa devices 141 */ 142 #define ISA_ACCESSOR(var, ivar, type) \ 143 __BUS_ACCESSOR(isa, var, ISA, ivar, type) 144 145 ISA_ACCESSOR(port, PORT, int) 146 ISA_ACCESSOR(portsize, PORTSIZE, int) 147 ISA_ACCESSOR(irq, IRQ, int) 148 ISA_ACCESSOR(drq, DRQ, int) 149 ISA_ACCESSOR(maddr, MADDR, int) 150 ISA_ACCESSOR(msize, MEMSIZE, int) 151 ISA_ACCESSOR(vendorid, VENDORID, int) 152 ISA_ACCESSOR(serial, SERIAL, int) 153 ISA_ACCESSOR(logicalid, LOGICALID, int) 154 ISA_ACCESSOR(compatid, COMPATID, int) 155 ISA_ACCESSOR(configattr, CONFIGATTR, int) 156 157 /* Device class for ISA bridges. */ 158 extern devclass_t isab_devclass; 159 160 extern intrmask_t isa_irq_pending(void); 161 extern void isa_probe_children(device_t dev); 162 163 void isa_dmacascade(int chan); 164 void isa_dmadone(int flags, caddr_t addr, int nbytes, int chan); 165 int isa_dma_init(int chan, u_int bouncebufsize, int flag); 166 void isa_dmastart(int flags, caddr_t addr, u_int nbytes, int chan); 167 int isa_dma_acquire(int chan); 168 void isa_dma_release(int chan); 169 int isa_dmastatus(int chan); 170 int isa_dmastop(int chan); 171 int isa_dmatc(int chan); 172 173 #define isa_dmainit(chan, size) do { \ 174 if (isa_dma_init(chan, size, M_NOWAIT)) \ 175 printf("WARNING: isa_dma_init(%d, %ju) failed\n", \ 176 (int)(chan), (uintmax_t)(size)); \ 177 } while (0) 178 179 int isab_attach(device_t dev); 180 181 #ifdef PC98 182 #include <machine/bus.h> 183 184 /* 185 * Allocate discontinuous resources for ISA bus. 186 */ 187 struct resource * 188 isa_alloc_resourcev(device_t child, int type, int *rid, 189 bus_addr_t *res, bus_size_t count, u_int flags); 190 int 191 isa_load_resourcev(struct resource *re, bus_addr_t *res, bus_size_t count); 192 #endif 193 194 #endif /* _KERNEL */ 195 196 #endif /* !_ISA_ISAVAR_H_ */ 197