1 /* $NetBSD: isa_machdep.c,v 1.23 2001/05/14 13:18:47 leo Exp $ */ 2 3 /* 4 * Copyright (c) 1997 Leo Weppelman. All rights reserved. 5 * Copyright (c) 1996 Christopher G. Demetriou. All rights reserved. 6 * Copyright (c) 1994 Charles M. Hannum. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by Charles M. Hannum. 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/types.h> 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/device.h> 38 39 #define _ATARI_BUS_DMA_PRIVATE 40 #include <machine/bus.h> 41 #include <dev/isa/isavar.h> 42 #include <dev/isa/isareg.h> 43 44 #include "pckbc.h" 45 #if (NPCKBC > 0) 46 #include <dev/ic/pckbcvar.h> 47 #include <dev/isa/isareg.h> 48 #include <dev/ic/i8042reg.h> 49 #endif /* NPCKBC > 0 */ 50 51 #include <machine/iomap.h> 52 #include <machine/mfp.h> 53 #include <atari/atari/device.h> 54 55 #include "isadma.h" 56 57 #if NISADMA == 0 58 59 /* 60 * Entry points for ISA DMA while no DMA capable devices are attached. 61 * This must be a serious error. Cause a panic... 62 */ 63 struct atari_bus_dma_tag isa_bus_dma_tag = { 64 0 65 }; 66 #endif /* NISADMA == 0 */ 67 68 static int isabusprint __P((void *auxp, const char *)); 69 static int isabusmatch __P((struct device *, struct cfdata *, void *)); 70 static void isabusattach __P((struct device *, struct device *, void *)); 71 72 struct isabus_softc { 73 struct device sc_dev; 74 struct atari_isa_chipset sc_chipset; 75 }; 76 77 struct cfattach isabus_ca = { 78 sizeof(struct isabus_softc), isabusmatch, isabusattach 79 }; 80 81 /* 82 * We need some static storage to attach a console keyboard on the Milan 83 * during early console init. 84 */ 85 static struct atari_bus_space bs_storage[2]; /* 1 iot, 1 memt */ 86 87 int 88 isabusmatch(pdp, cfp, auxp) 89 struct device *pdp; 90 struct cfdata *cfp; 91 void *auxp; 92 { 93 static int nmatched = 0; 94 95 if (strcmp((char *)auxp, "isabus")) 96 return (0); /* Wrong number... */ 97 98 if(atari_realconfig == 0) 99 return (1); 100 101 if (machineid & (ATARI_HADES|ATARI_MILAN)) { 102 /* 103 * The Hades and Milan have only one pci bus 104 */ 105 if (nmatched) 106 return (0); 107 nmatched++; 108 return (1); 109 } 110 return(0); 111 } 112 113 void 114 isabusattach(pdp, dp, auxp) 115 struct device *pdp, *dp; 116 void *auxp; 117 { 118 struct isabus_softc *sc = (struct isabus_softc *)dp; 119 struct isabus_attach_args iba; 120 extern struct atari_bus_dma_tag isa_bus_dma_tag; 121 extern void isa_bus_init(void); 122 123 iba.iba_busname = "isa"; 124 iba.iba_dmat = &isa_bus_dma_tag; 125 iba.iba_iot = leb_alloc_bus_space_tag(&bs_storage[0]); 126 iba.iba_memt = leb_alloc_bus_space_tag(&bs_storage[1]); 127 iba.iba_ic = &sc->sc_chipset; 128 if ((iba.iba_iot == NULL) || (iba.iba_memt == NULL)) { 129 printf("leb_alloc_bus_space_tag failed!\n"); 130 return; 131 } 132 iba.iba_iot->base = ISA_IOSTART; 133 iba.iba_memt->base = ISA_MEMSTART; 134 135 if (machineid & ATARI_HADES) 136 MFP->mf_aer |= (IO_ISA1|IO_ISA2); /* ISA interrupts: LOW->HIGH */ 137 isa_bus_init(); 138 if (dp == NULL) { /* Early init */ 139 #if (NPCKBC > 0) 140 pckbc_cnattach(iba.iba_iot, IO_KBD, KBCMDP, PCKBC_KBD_SLOT); 141 #endif 142 return; 143 } 144 145 printf("\n"); 146 config_found(dp, &iba, isabusprint); 147 } 148 149 int 150 isabusprint(auxp, name) 151 void *auxp; 152 const char *name; 153 { 154 if(name == NULL) 155 return(UNCONF); 156 return(QUIET); 157 } 158 159 void 160 isa_attach_hook(parent, self, iba) 161 struct device *parent, *self; 162 struct isabus_attach_args *iba; 163 { 164 } 165 166 const struct evcnt * 167 isa_intr_evcnt(isa_chipset_tag_t ic, int irq) 168 { 169 170 /* XXX for now, no evcnt parent reported */ 171 return NULL; 172 } 173