1 /* $NetBSD: isa_machdep.c,v 1.29 2005/12/11 12:16:59 christos 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/cdefs.h> 35 __KERNEL_RCSID(0, "$NetBSD: isa_machdep.c,v 1.29 2005/12/11 12:16:59 christos Exp $"); 36 37 #include <sys/types.h> 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/device.h> 41 42 #define _ATARI_BUS_DMA_PRIVATE 43 #include <machine/bus.h> 44 #include <dev/isa/isavar.h> 45 #include <dev/isa/isareg.h> 46 47 #include "pckbc.h" 48 #if (NPCKBC > 0) 49 #include <dev/ic/pckbcvar.h> 50 #include <dev/isa/isareg.h> 51 #include <dev/ic/i8042reg.h> 52 #endif /* NPCKBC > 0 */ 53 54 #include <machine/iomap.h> 55 #include <machine/mfp.h> 56 #include <atari/atari/device.h> 57 58 #include "isadma.h" 59 60 #if NISADMA == 0 61 62 /* 63 * Entry points for ISA DMA while no DMA capable devices are attached. 64 * This must be a serious error. Cause a panic... 65 */ 66 struct atari_bus_dma_tag isa_bus_dma_tag = { 67 0 68 }; 69 #endif /* NISADMA == 0 */ 70 71 static int atariisabusprint __P((void *auxp, const char *)); 72 static int isabusmatch __P((struct device *, struct cfdata *, void *)); 73 static void isabusattach __P((struct device *, struct device *, void *)); 74 75 struct isabus_softc { 76 struct device sc_dev; 77 struct atari_isa_chipset sc_chipset; 78 }; 79 80 CFATTACH_DECL(isab, sizeof(struct isabus_softc), 81 isabusmatch, isabusattach, NULL, NULL); 82 83 /* 84 * We need some static storage to attach a console keyboard on the Milan 85 * during early console init. 86 */ 87 static struct atari_bus_space bs_storage[2]; /* 1 iot, 1 memt */ 88 89 int 90 isabusmatch(pdp, cfp, auxp) 91 struct device *pdp; 92 struct cfdata *cfp; 93 void *auxp; 94 { 95 static int nmatched = 0; 96 97 if (strcmp((char *)auxp, "isab")) 98 return (0); /* Wrong number... */ 99 100 if(atari_realconfig == 0) 101 return (1); 102 103 if (machineid & (ATARI_HADES|ATARI_MILAN)) { 104 /* 105 * The Hades and Milan have only one pci bus 106 */ 107 if (nmatched) 108 return (0); 109 nmatched++; 110 return (1); 111 } 112 return(0); 113 } 114 115 void 116 isabusattach(pdp, dp, auxp) 117 struct device *pdp, *dp; 118 void *auxp; 119 { 120 struct isabus_softc *sc = (struct isabus_softc *)dp; 121 struct isabus_attach_args iba; 122 extern struct atari_bus_dma_tag isa_bus_dma_tag; 123 extern void isa_bus_init(void); 124 125 iba.iba_dmat = &isa_bus_dma_tag; 126 iba.iba_iot = leb_alloc_bus_space_tag(&bs_storage[0]); 127 iba.iba_memt = leb_alloc_bus_space_tag(&bs_storage[1]); 128 iba.iba_ic = &sc->sc_chipset; 129 if ((iba.iba_iot == NULL) || (iba.iba_memt == NULL)) { 130 printf("leb_alloc_bus_space_tag failed!\n"); 131 return; 132 } 133 iba.iba_iot->base = ISA_IOSTART; 134 iba.iba_memt->base = ISA_MEMSTART; 135 136 if (machineid & ATARI_HADES) 137 MFP->mf_aer |= (IO_ISA1|IO_ISA2); /* ISA interrupts: LOW->HIGH */ 138 isa_bus_init(); 139 if (dp == NULL) { /* Early init */ 140 #if (NPCKBC > 0) 141 pckbc_cnattach(iba.iba_iot, IO_KBD, KBCMDP, PCKBC_KBD_SLOT); 142 #endif 143 return; 144 } 145 146 printf("\n"); 147 config_found_ia(dp, "isabus", &iba, atariisabusprint); 148 } 149 150 int 151 atariisabusprint(auxp, name) 152 void *auxp; 153 const char *name; 154 { 155 if(name == NULL) 156 return(UNCONF); 157 return(QUIET); 158 } 159 160 void 161 isa_attach_hook(parent, self, iba) 162 struct device *parent, *self; 163 struct isabus_attach_args *iba; 164 { 165 } 166 167 const struct evcnt * 168 isa_intr_evcnt(isa_chipset_tag_t ic, int irq) 169 { 170 171 /* XXX for now, no evcnt parent reported */ 172 return NULL; 173 } 174