1 /* $NetBSD: isa_machdep.c,v 1.26 2002/12/08 21:31:38 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 CFATTACH_DECL(isab, sizeof(struct isabus_softc), 78 isabusmatch, isabusattach, NULL, NULL); 79 80 /* 81 * We need some static storage to attach a console keyboard on the Milan 82 * during early console init. 83 */ 84 static struct atari_bus_space bs_storage[2]; /* 1 iot, 1 memt */ 85 86 int 87 isabusmatch(pdp, cfp, auxp) 88 struct device *pdp; 89 struct cfdata *cfp; 90 void *auxp; 91 { 92 static int nmatched = 0; 93 94 if (strcmp((char *)auxp, "isab")) 95 return (0); /* Wrong number... */ 96 97 if(atari_realconfig == 0) 98 return (1); 99 100 if (machineid & (ATARI_HADES|ATARI_MILAN)) { 101 /* 102 * The Hades and Milan have only one pci bus 103 */ 104 if (nmatched) 105 return (0); 106 nmatched++; 107 return (1); 108 } 109 return(0); 110 } 111 112 void 113 isabusattach(pdp, dp, auxp) 114 struct device *pdp, *dp; 115 void *auxp; 116 { 117 struct isabus_softc *sc = (struct isabus_softc *)dp; 118 struct isabus_attach_args iba; 119 extern struct atari_bus_dma_tag isa_bus_dma_tag; 120 extern void isa_bus_init(void); 121 122 iba.iba_busname = "isa"; 123 iba.iba_dmat = &isa_bus_dma_tag; 124 iba.iba_iot = leb_alloc_bus_space_tag(&bs_storage[0]); 125 iba.iba_memt = leb_alloc_bus_space_tag(&bs_storage[1]); 126 iba.iba_ic = &sc->sc_chipset; 127 if ((iba.iba_iot == NULL) || (iba.iba_memt == NULL)) { 128 printf("leb_alloc_bus_space_tag failed!\n"); 129 return; 130 } 131 iba.iba_iot->base = ISA_IOSTART; 132 iba.iba_memt->base = ISA_MEMSTART; 133 134 if (machineid & ATARI_HADES) 135 MFP->mf_aer |= (IO_ISA1|IO_ISA2); /* ISA interrupts: LOW->HIGH */ 136 isa_bus_init(); 137 if (dp == NULL) { /* Early init */ 138 #if (NPCKBC > 0) 139 pckbc_cnattach(iba.iba_iot, IO_KBD, KBCMDP, PCKBC_KBD_SLOT); 140 #endif 141 return; 142 } 143 144 printf("\n"); 145 config_found(dp, &iba, isabusprint); 146 } 147 148 int 149 isabusprint(auxp, name) 150 void *auxp; 151 const char *name; 152 { 153 if(name == NULL) 154 return(UNCONF); 155 return(QUIET); 156 } 157 158 void 159 isa_attach_hook(parent, self, iba) 160 struct device *parent, *self; 161 struct isabus_attach_args *iba; 162 { 163 } 164 165 const struct evcnt * 166 isa_intr_evcnt(isa_chipset_tag_t ic, int irq) 167 { 168 169 /* XXX for now, no evcnt parent reported */ 170 return NULL; 171 } 172