sgc.c revision 1.2.2.2
1 1.2.2.2 rmind /* $NetBSD: sgc.c,v 1.2.2.2 2011/03/05 20:50:22 rmind Exp $ */ 2 1.2.2.2 rmind /* $OpenBSD: sgc.c,v 1.6 2010/04/15 20:35:21 miod Exp $ */ 3 1.2.2.2 rmind 4 1.2.2.2 rmind /* 5 1.2.2.2 rmind * Copyright (c) 2005, Miodrag Vallat 6 1.2.2.2 rmind * 7 1.2.2.2 rmind * Redistribution and use in source and binary forms, with or without 8 1.2.2.2 rmind * modification, are permitted provided that the following conditions 9 1.2.2.2 rmind * are met: 10 1.2.2.2 rmind * 1. Redistributions of source code must retain the above copyright 11 1.2.2.2 rmind * notice, this list of conditions and the following disclaimer. 12 1.2.2.2 rmind * 2. Redistributions in binary form must reproduce the above copyright 13 1.2.2.2 rmind * notice, this list of conditions and the following disclaimer in the 14 1.2.2.2 rmind * documentation and/or other materials provided with the distribution. 15 1.2.2.2 rmind * 16 1.2.2.2 rmind * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 1.2.2.2 rmind * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 18 1.2.2.2 rmind * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 19 1.2.2.2 rmind * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 20 1.2.2.2 rmind * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 21 1.2.2.2 rmind * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 22 1.2.2.2 rmind * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 1.2.2.2 rmind * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 24 1.2.2.2 rmind * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 25 1.2.2.2 rmind * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 1.2.2.2 rmind * POSSIBILITY OF SUCH DAMAGE. 27 1.2.2.2 rmind * 28 1.2.2.2 rmind */ 29 1.2.2.2 rmind 30 1.2.2.2 rmind /* 31 1.2.2.2 rmind * SGC bus attachment and mapping glue. 32 1.2.2.2 rmind */ 33 1.2.2.2 rmind 34 1.2.2.2 rmind #include <sys/param.h> 35 1.2.2.2 rmind #include <sys/systm.h> 36 1.2.2.2 rmind #include <sys/device.h> 37 1.2.2.2 rmind #include <sys/kernel.h> 38 1.2.2.2 rmind #include <sys/bus.h> 39 1.2.2.2 rmind #include <sys/cpu.h> 40 1.2.2.2 rmind 41 1.2.2.2 rmind #include <machine/autoconf.h> 42 1.2.2.2 rmind #include <machine/hp300spu.h> 43 1.2.2.2 rmind 44 1.2.2.2 rmind #include <hp300/dev/sgcreg.h> 45 1.2.2.2 rmind #include <hp300/dev/sgcvar.h> 46 1.2.2.2 rmind 47 1.2.2.2 rmind #ifdef SGC_DEBUG 48 1.2.2.2 rmind #define DPRINTF(x) printf x 49 1.2.2.2 rmind #else 50 1.2.2.2 rmind #define DPRINTF(x) do {} while (/* CONSTCOND */ 0) 51 1.2.2.2 rmind #endif 52 1.2.2.2 rmind 53 1.2.2.2 rmind struct sgc_softc { 54 1.2.2.2 rmind device_t sc_dev; 55 1.2.2.2 rmind struct bus_space_tag sc_tag; 56 1.2.2.2 rmind }; 57 1.2.2.2 rmind 58 1.2.2.2 rmind static int sgcmatch(device_t, cfdata_t, void *); 59 1.2.2.2 rmind static void sgcattach(device_t, device_t, void *); 60 1.2.2.2 rmind static int sgcprint(void *, const char *); 61 1.2.2.2 rmind 62 1.2.2.2 rmind CFATTACH_DECL_NEW(sgc, sizeof(struct sgc_softc), 63 1.2.2.2 rmind sgcmatch, sgcattach, NULL, NULL); 64 1.2.2.2 rmind 65 1.2.2.2 rmind int 66 1.2.2.2 rmind sgcmatch(device_t parent, cfdata_t cf, void *aux) 67 1.2.2.2 rmind { 68 1.2.2.2 rmind static int sgc_matched = 0; 69 1.2.2.2 rmind 70 1.2.2.2 rmind /* Allow only one instance. */ 71 1.2.2.2 rmind if (sgc_matched) 72 1.2.2.2 rmind return 0; 73 1.2.2.2 rmind 74 1.2.2.2 rmind /* 75 1.2.2.2 rmind * Leave out machines which can not have an SGC bus. 76 1.2.2.2 rmind */ 77 1.2.2.2 rmind 78 1.2.2.2 rmind switch (machineid) { 79 1.2.2.2 rmind #if 0 80 1.2.2.2 rmind case HP_362: 81 1.2.2.2 rmind case HP_382: 82 1.2.2.2 rmind #endif 83 1.2.2.2 rmind case HP_400: 84 1.2.2.2 rmind case HP_425: 85 1.2.2.2 rmind case HP_433: 86 1.2.2.2 rmind return sgc_matched = 1; 87 1.2.2.2 rmind default: 88 1.2.2.2 rmind return 0; 89 1.2.2.2 rmind } 90 1.2.2.2 rmind } 91 1.2.2.2 rmind 92 1.2.2.2 rmind void 93 1.2.2.2 rmind sgcattach(device_t parent, device_t self, void *aux) 94 1.2.2.2 rmind { 95 1.2.2.2 rmind struct sgc_softc *sc; 96 1.2.2.2 rmind struct sgc_attach_args saa; 97 1.2.2.2 rmind paddr_t pa; 98 1.2.2.2 rmind void *va; 99 1.2.2.2 rmind int slot, rv; 100 1.2.2.2 rmind bus_space_tag_t bst; 101 1.2.2.2 rmind bus_space_handle_t bsh; 102 1.2.2.2 rmind 103 1.2.2.2 rmind sc = device_private(self); 104 1.2.2.2 rmind sc->sc_dev = self; 105 1.2.2.2 rmind aprint_normal("\n"); 106 1.2.2.2 rmind 107 1.2.2.2 rmind bst = &sc->sc_tag; 108 1.2.2.2 rmind memset(bst, 0, sizeof(struct bus_space_tag)); 109 1.2.2.2 rmind bst->bustype = HP300_BUS_SPACE_SGC; 110 1.2.2.2 rmind 111 1.2.2.2 rmind for (slot = 0; slot < SGC_NSLOTS; slot++) { 112 1.2.2.2 rmind pa = sgc_slottopa(slot); 113 1.2.2.2 rmind if (bus_space_map(bst, pa, PAGE_SIZE, 0, &bsh) != 0) { 114 1.2.2.2 rmind aprint_error_dev(self, "can't map slot %d\n", slot); 115 1.2.2.2 rmind continue; 116 1.2.2.2 rmind } 117 1.2.2.2 rmind va = bus_space_vaddr(bst, bsh); 118 1.2.2.2 rmind 119 1.2.2.2 rmind /* Check for hardware. */ 120 1.2.2.2 rmind rv = badaddr(va); 121 1.2.2.2 rmind bus_space_unmap(bst, bsh, PAGE_SIZE); 122 1.2.2.2 rmind 123 1.2.2.2 rmind if (rv != 0) { 124 1.2.2.2 rmind DPRINTF(("%s: no valid device at slot %d\n", 125 1.2.2.2 rmind device_xname(self), slot)); 126 1.2.2.2 rmind continue; 127 1.2.2.2 rmind } 128 1.2.2.2 rmind 129 1.2.2.2 rmind memset(&saa, 0, sizeof(saa)); 130 1.2.2.2 rmind saa.saa_iot = bst; 131 1.2.2.2 rmind saa.saa_slot = slot; 132 1.2.2.2 rmind 133 1.2.2.2 rmind /* Attach matching device. */ 134 1.2.2.2 rmind config_found(self, &saa, sgcprint); 135 1.2.2.2 rmind } 136 1.2.2.2 rmind } 137 1.2.2.2 rmind 138 1.2.2.2 rmind int 139 1.2.2.2 rmind sgcprint(void *aux, const char *pnp) 140 1.2.2.2 rmind { 141 1.2.2.2 rmind struct sgc_attach_args *saa = aux; 142 1.2.2.2 rmind 143 1.2.2.2 rmind if (pnp) 144 1.2.2.2 rmind aprint_normal("unknown SGC card at %s", pnp); 145 1.2.2.2 rmind aprint_normal(" slot %d", saa->saa_slot); 146 1.2.2.2 rmind return UNCONF; 147 1.2.2.2 rmind } 148 1.2.2.2 rmind 149 1.2.2.2 rmind /* 150 1.2.2.2 rmind * Convert a slot number to a system physical address. 151 1.2.2.2 rmind * This is needed for bus_space. 152 1.2.2.2 rmind */ 153 1.2.2.2 rmind paddr_t 154 1.2.2.2 rmind sgc_slottopa(int slot) 155 1.2.2.2 rmind { 156 1.2.2.2 rmind paddr_t rval; 157 1.2.2.2 rmind 158 1.2.2.2 rmind if (slot < 0 || slot >= SGC_NSLOTS) 159 1.2.2.2 rmind rval = 0; 160 1.2.2.2 rmind else 161 1.2.2.2 rmind rval = SGC_BASE + (slot * SGC_DEVSIZE); 162 1.2.2.2 rmind 163 1.2.2.2 rmind return rval; 164 1.2.2.2 rmind } 165
Indexes created Thu Oct 23 18:09:57 GMT 2025