1 /* $NetBSD: isa_machdep.c,v 1.40 2012/10/13 17:58:54 jdc 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 1.40 2012/10/13 17:58:54 jdc 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 <sys/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/ic/i8042reg.h> 51 #endif /* NPCKBC > 0 */ 52 53 #include <machine/iomap.h> 54 #include <machine/mfp.h> 55 #include <atari/atari/device.h> 56 57 #include "isadma.h" 58 59 #if NISADMA == 0 60 61 /* 62 * Entry points for ISA DMA while no DMA capable devices are attached. 63 * This must be a serious error. Cause a panic... 64 */ 65 struct atari_bus_dma_tag isa_bus_dma_tag = { 66 0 67 }; 68 #endif /* NISADMA == 0 */ 69 70 static int atariisabusprint(void *, const char *); 71 static int isabusmatch(device_t, cfdata_t, void *); 72 static void isabusattach(device_t, device_t, void *); 73 74 struct isabus_softc { 75 device_t sc_dev; 76 struct atari_isa_chipset sc_chipset; 77 }; 78 79 CFATTACH_DECL_NEW(isab, sizeof(struct isabus_softc), 80 isabusmatch, isabusattach, NULL, NULL); 81 82 /* 83 * We need some static storage to attach a console keyboard on the Milan 84 * during early console init. 85 */ 86 static struct atari_bus_space bs_storage[2]; /* 1 iot, 1 memt */ 87 88 int 89 isabusmatch(device_t parent, cfdata_t cf, void *aux) 90 { 91 static int nmatched = 0; 92 93 if (strcmp((char *)aux, "isab")) 94 return 0; /* Wrong number... */ 95 96 if (atari_realconfig == 0) 97 return 1; 98 99 if (machineid & (ATARI_HADES|ATARI_MILAN)) { 100 /* 101 * The Hades and Milan have only one pci bus 102 */ 103 if (nmatched) 104 return 0; 105 nmatched++; 106 return 1; 107 } 108 return 0; 109 } 110 111 void 112 isabusattach(device_t parent, device_t self, void *aux) 113 { 114 struct isabus_softc *sc = device_private(self); 115 struct isabus_attach_args iba; 116 extern struct atari_bus_dma_tag isa_bus_dma_tag; 117 extern void isa_bus_init(void); 118 119 sc->sc_dev = self; 120 121 iba.iba_dmat = &isa_bus_dma_tag; 122 iba.iba_iot = leb_alloc_bus_space_tag(&bs_storage[0]); 123 iba.iba_memt = leb_alloc_bus_space_tag(&bs_storage[1]); 124 iba.iba_ic = &sc->sc_chipset; 125 if ((iba.iba_iot == NULL) || (iba.iba_memt == NULL)) { 126 printf("leb_alloc_bus_space_tag failed!\n"); 127 return; 128 } 129 iba.iba_iot->base = ISA_IOSTART; 130 iba.iba_memt->base = ISA_MEMSTART; 131 132 if (machineid & ATARI_HADES) 133 MFP->mf_aer |= (IO_ISA1|IO_ISA2); /* ISA interrupts: LOW->HIGH */ 134 isa_bus_init(); 135 if (self == NULL) { /* Early init */ 136 #if (NPCKBC > 0) 137 pckbc_cnattach(iba.iba_iot, IO_KBD, KBCMDP, PCKBC_KBD_SLOT, 0); 138 #endif 139 return; 140 } 141 142 printf("\n"); 143 config_found_ia(self, "isabus", &iba, atariisabusprint); 144 } 145 146 int 147 atariisabusprint(void *aux, const char *name) 148 { 149 150 if (name == NULL) 151 return UNCONF; 152 return QUIET; 153 } 154 155 void 156 isa_attach_hook(device_t parent, device_t self, struct isabus_attach_args *iba) 157 { 158 } 159 160 void 161 isa_detach_hook(isa_chipset_tag_t ic, device_t self) 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