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 * $Id: isavar.h,v 1.8 1999/05/28 09:25:02 dfr Exp $ 27 */ 28 29 #ifndef _ISA_ISAVAR_H_ 30 #define _ISA_ISAVAR_H_ 31 32 #include "isa_if.h" 33 #include <isa/pnp.h> 34 35 #ifdef KERNEL 36 37 /* 38 * ISA devices are partially ordered to ensure that devices which are 39 * sensitive to other driver probe routines are probed first. Plug and 40 * Play devices are added after devices with speculative probes so that 41 * the legacy hardware can claim resources allowing the Plug and Play 42 * hardware to choose different resources. 43 */ 44 #define ISA_ORDER_SENSITIVE 0 /* legacy sensitive hardware */ 45 #define ISA_ORDER_SPECULATIVE 1 /* legacy non-sensitive hardware */ 46 #define ISA_ORDER_PNP 2 /* plug-and-play hardware */ 47 48 #define ISA_NPORT_IVARS 8 49 #define ISA_NMEM_IVARS 4 50 #define ISA_NIRQ_IVARS 2 51 #define ISA_NDRQ_IVARS 2 52 53 enum isa_device_ivars { 54 ISA_IVAR_PORT, 55 ISA_IVAR_PORT_0 = ISA_IVAR_PORT, 56 ISA_IVAR_PORT_1, 57 ISA_IVAR_PORTSIZE, 58 ISA_IVAR_PORTSIZE_0 = ISA_IVAR_PORTSIZE, 59 ISA_IVAR_PORTSIZE_1, 60 ISA_IVAR_MADDR, 61 ISA_IVAR_MADDR_0 = ISA_IVAR_MADDR, 62 ISA_IVAR_MADDR_1, 63 ISA_IVAR_MSIZE, 64 ISA_IVAR_MSIZE_0 = ISA_IVAR_MSIZE, 65 ISA_IVAR_MSIZE_1, 66 ISA_IVAR_FLAGS, 67 ISA_IVAR_IRQ, 68 ISA_IVAR_IRQ_0 = ISA_IVAR_IRQ, 69 ISA_IVAR_IRQ_1, 70 ISA_IVAR_DRQ, 71 ISA_IVAR_DRQ_0 = ISA_IVAR_DRQ, 72 ISA_IVAR_DRQ_1, 73 ISA_IVAR_VENDORID, 74 ISA_IVAR_SERIAL, 75 ISA_IVAR_LOGICALID, 76 ISA_IVAR_COMPATID 77 }; 78 79 extern intrmask_t isa_irq_pending(void); 80 extern intrmask_t isa_irq_mask(void); 81 #ifdef __i386__ 82 extern void isa_wrap_old_drivers(void); 83 #endif 84 85 /* 86 * Simplified accessors for isa devices 87 */ 88 #define ISA_ACCESSOR(A, B, T) \ 89 \ 90 static __inline T isa_get_ ## A(device_t dev) \ 91 { \ 92 uintptr_t v; \ 93 BUS_READ_IVAR(device_get_parent(dev), dev, ISA_IVAR_ ## B, &v); \ 94 return (T) v; \ 95 } \ 96 \ 97 static __inline void isa_set_ ## A(device_t dev, T t) \ 98 { \ 99 u_long v = (u_long) t; \ 100 BUS_WRITE_IVAR(device_get_parent(dev), dev, ISA_IVAR_ ## B, v); \ 101 } 102 103 ISA_ACCESSOR(port, PORT, int) 104 ISA_ACCESSOR(portsize, PORTSIZE, int) 105 ISA_ACCESSOR(irq, IRQ, int) 106 ISA_ACCESSOR(drq, DRQ, int) 107 ISA_ACCESSOR(maddr, MADDR, int) 108 ISA_ACCESSOR(msize, MSIZE, int) 109 ISA_ACCESSOR(flags, FLAGS, int) 110 ISA_ACCESSOR(vendorid, VENDORID, int) 111 ISA_ACCESSOR(serial, SERIAL, int) 112 ISA_ACCESSOR(logicalid, LOGICALID, int) 113 ISA_ACCESSOR(compatid, COMPATID, int) 114 115 void isa_dmacascade __P((int chan)); 116 void isa_dmadone __P((int flags, caddr_t addr, int nbytes, int chan)); 117 void isa_dmainit __P((int chan, u_int bouncebufsize)); 118 void isa_dmastart __P((int flags, caddr_t addr, u_int nbytes, int chan)); 119 int isa_dma_acquire __P((int chan)); 120 void isa_dma_release __P((int chan)); 121 int isa_dmastatus __P((int chan)); 122 int isa_dmastop __P((int chan)); 123 124 #endif /* KERNEL */ 125 126 #endif /* !_ISA_ISAVAR_H_ */ 127