ichlpcib_hpet.c revision 1.2.2.2
1 1.2.2.2 cherry /* $NetBSD: ichlpcib_hpet.c,v 1.2.2.2 2011/06/23 14:19:48 cherry Exp $ */ 2 1.2.2.2 cherry 3 1.2.2.2 cherry /*- 4 1.2.2.2 cherry * Copyright (c) 2004 The NetBSD Foundation, Inc. 5 1.2.2.2 cherry * All rights reserved. 6 1.2.2.2 cherry * 7 1.2.2.2 cherry * This code is derived from software contributed to The NetBSD Foundation 8 1.2.2.2 cherry * by Minoura Makoto and Matthew R. Green. 9 1.2.2.2 cherry * 10 1.2.2.2 cherry * Redistribution and use in source and binary forms, with or without 11 1.2.2.2 cherry * modification, are permitted provided that the following conditions 12 1.2.2.2 cherry * are met: 13 1.2.2.2 cherry * 1. Redistributions of source code must retain the above copyright 14 1.2.2.2 cherry * notice, this list of conditions and the following disclaimer. 15 1.2.2.2 cherry * 2. Redistributions in binary form must reproduce the above copyright 16 1.2.2.2 cherry * notice, this list of conditions and the following disclaimer in the 17 1.2.2.2 cherry * documentation and/or other materials provided with the distribution. 18 1.2.2.2 cherry * 19 1.2.2.2 cherry * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.2.2.2 cherry * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.2.2.2 cherry * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.2.2.2 cherry * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.2.2.2 cherry * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.2.2.2 cherry * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.2.2.2 cherry * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.2.2.2 cherry * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.2.2.2 cherry * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.2.2.2 cherry * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.2.2.2 cherry * POSSIBILITY OF SUCH DAMAGE. 30 1.2.2.2 cherry */ 31 1.2.2.2 cherry #include <sys/cdefs.h> 32 1.2.2.2 cherry __KERNEL_RCSID(0, "$NetBSD: ichlpcib_hpet.c,v 1.2.2.2 2011/06/23 14:19:48 cherry Exp $"); 33 1.2.2.2 cherry 34 1.2.2.2 cherry #include <sys/param.h> 35 1.2.2.2 cherry #include <sys/device.h> 36 1.2.2.2 cherry #include <sys/time.h> 37 1.2.2.2 cherry #include <sys/timetc.h> 38 1.2.2.2 cherry 39 1.2.2.2 cherry #include <machine/bus.h> 40 1.2.2.2 cherry 41 1.2.2.2 cherry #include <dev/ic/hpetreg.h> 42 1.2.2.2 cherry #include <dev/ic/hpetvar.h> 43 1.2.2.2 cherry #include <dev/ic/i82801lpcreg.h> 44 1.2.2.2 cherry #include <dev/ic/i82801lpcvar.h> 45 1.2.2.2 cherry 46 1.2.2.2 cherry static int lpcib_hpet_match(device_t , cfdata_t , void *); 47 1.2.2.2 cherry static void lpcib_hpet_attach(device_t, device_t, void *); 48 1.2.2.2 cherry static int lpcib_hpet_detach(device_t, int); 49 1.2.2.2 cherry 50 1.2.2.2 cherry CFATTACH_DECL_NEW(ichlpcib_hpet, sizeof(struct hpet_softc), 51 1.2.2.2 cherry lpcib_hpet_match, lpcib_hpet_attach, lpcib_hpet_detach, NULL); 52 1.2.2.2 cherry 53 1.2.2.2 cherry static int 54 1.2.2.2 cherry lpcib_hpet_match(device_t parent, cfdata_t match, void *aux) 55 1.2.2.2 cherry { 56 1.2.2.2 cherry struct lpcib_hpet_attach_args *arg = aux; 57 1.2.2.2 cherry bus_space_handle_t bh; 58 1.2.2.2 cherry bus_space_tag_t bt; 59 1.2.2.2 cherry 60 1.2.2.2 cherry bt = arg->hpet_mem_t; 61 1.2.2.2 cherry 62 1.2.2.2 cherry if (bus_space_map(bt, arg->hpet_reg, HPET_WINDOW_SIZE, 0, &bh) != 0) 63 1.2.2.2 cherry return 0; 64 1.2.2.2 cherry 65 1.2.2.2 cherry bus_space_unmap(bt, bh, HPET_WINDOW_SIZE); 66 1.2.2.2 cherry 67 1.2.2.2 cherry return 1; 68 1.2.2.2 cherry } 69 1.2.2.2 cherry 70 1.2.2.2 cherry 71 1.2.2.2 cherry static void 72 1.2.2.2 cherry lpcib_hpet_attach(device_t parent, device_t self, void *aux) 73 1.2.2.2 cherry { 74 1.2.2.2 cherry struct hpet_softc *sc = device_private(self); 75 1.2.2.2 cherry struct lpcib_hpet_attach_args *arg = aux; 76 1.2.2.2 cherry 77 1.2.2.2 cherry sc->sc_mapped = false; 78 1.2.2.2 cherry sc->sc_memt = arg->hpet_mem_t; 79 1.2.2.2 cherry sc->sc_mems = HPET_WINDOW_SIZE; 80 1.2.2.2 cherry 81 1.2.2.2 cherry if (bus_space_map(sc->sc_memt, arg->hpet_reg, 82 1.2.2.2 cherry sc->sc_mems, 0, &sc->sc_memh) != 0) { 83 1.2.2.2 cherry aprint_error(": failed to map mem space\n"); 84 1.2.2.2 cherry return; 85 1.2.2.2 cherry } 86 1.2.2.2 cherry 87 1.2.2.2 cherry aprint_naive("\n"); 88 1.2.2.2 cherry aprint_normal(": high precision event timer (mem 0x%08x-0x%08x)\n", 89 1.2.2.2 cherry arg->hpet_reg, arg->hpet_reg + HPET_WINDOW_SIZE); 90 1.2.2.2 cherry 91 1.2.2.2 cherry sc->sc_mapped = true; 92 1.2.2.2 cherry hpet_attach_subr(self); 93 1.2.2.2 cherry } 94 1.2.2.2 cherry 95 1.2.2.2 cherry static int 96 1.2.2.2 cherry lpcib_hpet_detach(device_t self, int flags) 97 1.2.2.2 cherry { 98 1.2.2.2 cherry struct hpet_softc *sc = device_private(self); 99 1.2.2.2 cherry int rv; 100 1.2.2.2 cherry 101 1.2.2.2 cherry if (sc->sc_mapped != true) 102 1.2.2.2 cherry return 0; 103 1.2.2.2 cherry 104 1.2.2.2 cherry rv = hpet_detach(self, flags); 105 1.2.2.2 cherry 106 1.2.2.2 cherry if (rv != 0) 107 1.2.2.2 cherry return rv; 108 1.2.2.2 cherry 109 1.2.2.2 cherry bus_space_unmap(sc->sc_memt, sc->sc_memh, sc->sc_mems); 110 1.2.2.2 cherry 111 1.2.2.2 cherry return 0; 112 1.2.2.2 cherry } 113
Indexes created Thu Oct 23 18:09:57 GMT 2025