ichlpcib_hpet.c revision 1.3.2.2
1 1.3.2.2 jym /* $NetBSD: ichlpcib_hpet.c,v 1.3.2.2 2011/08/27 15:59:49 jym Exp $ */ 2 1.3.2.2 jym 3 1.3.2.2 jym /*- 4 1.3.2.2 jym * Copyright (c) 2004 The NetBSD Foundation, Inc. 5 1.3.2.2 jym * All rights reserved. 6 1.3.2.2 jym * 7 1.3.2.2 jym * This code is derived from software contributed to The NetBSD Foundation 8 1.3.2.2 jym * by Minoura Makoto and Matthew R. Green. 9 1.3.2.2 jym * 10 1.3.2.2 jym * Redistribution and use in source and binary forms, with or without 11 1.3.2.2 jym * modification, are permitted provided that the following conditions 12 1.3.2.2 jym * are met: 13 1.3.2.2 jym * 1. Redistributions of source code must retain the above copyright 14 1.3.2.2 jym * notice, this list of conditions and the following disclaimer. 15 1.3.2.2 jym * 2. Redistributions in binary form must reproduce the above copyright 16 1.3.2.2 jym * notice, this list of conditions and the following disclaimer in the 17 1.3.2.2 jym * documentation and/or other materials provided with the distribution. 18 1.3.2.2 jym * 19 1.3.2.2 jym * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.3.2.2 jym * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.3.2.2 jym * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.3.2.2 jym * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.3.2.2 jym * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.3.2.2 jym * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.3.2.2 jym * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.3.2.2 jym * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.3.2.2 jym * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.3.2.2 jym * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.3.2.2 jym * POSSIBILITY OF SUCH DAMAGE. 30 1.3.2.2 jym */ 31 1.3.2.2 jym #include <sys/cdefs.h> 32 1.3.2.2 jym __KERNEL_RCSID(0, "$NetBSD: ichlpcib_hpet.c,v 1.3.2.2 2011/08/27 15:59:49 jym Exp $"); 33 1.3.2.2 jym 34 1.3.2.2 jym #include <sys/param.h> 35 1.3.2.2 jym #include <sys/bus.h> 36 1.3.2.2 jym #include <sys/device.h> 37 1.3.2.2 jym #include <sys/time.h> 38 1.3.2.2 jym #include <sys/timetc.h> 39 1.3.2.2 jym 40 1.3.2.2 jym #include <dev/ic/hpetreg.h> 41 1.3.2.2 jym #include <dev/ic/hpetvar.h> 42 1.3.2.2 jym #include <dev/ic/i82801lpcreg.h> 43 1.3.2.2 jym #include <dev/ic/i82801lpcvar.h> 44 1.3.2.2 jym 45 1.3.2.2 jym static int lpcib_hpet_match(device_t , cfdata_t , void *); 46 1.3.2.2 jym static void lpcib_hpet_attach(device_t, device_t, void *); 47 1.3.2.2 jym static int lpcib_hpet_detach(device_t, int); 48 1.3.2.2 jym 49 1.3.2.2 jym CFATTACH_DECL_NEW(ichlpcib_hpet, sizeof(struct hpet_softc), 50 1.3.2.2 jym lpcib_hpet_match, lpcib_hpet_attach, lpcib_hpet_detach, NULL); 51 1.3.2.2 jym 52 1.3.2.2 jym static int 53 1.3.2.2 jym lpcib_hpet_match(device_t parent, cfdata_t match, void *aux) 54 1.3.2.2 jym { 55 1.3.2.2 jym struct lpcib_hpet_attach_args *arg = aux; 56 1.3.2.2 jym bus_space_handle_t bh; 57 1.3.2.2 jym bus_space_tag_t bt; 58 1.3.2.2 jym 59 1.3.2.2 jym bt = arg->hpet_mem_t; 60 1.3.2.2 jym 61 1.3.2.2 jym if (bus_space_map(bt, arg->hpet_reg, HPET_WINDOW_SIZE, 0, &bh) != 0) 62 1.3.2.2 jym return 0; 63 1.3.2.2 jym 64 1.3.2.2 jym bus_space_unmap(bt, bh, HPET_WINDOW_SIZE); 65 1.3.2.2 jym 66 1.3.2.2 jym return 1; 67 1.3.2.2 jym } 68 1.3.2.2 jym 69 1.3.2.2 jym 70 1.3.2.2 jym static void 71 1.3.2.2 jym lpcib_hpet_attach(device_t parent, device_t self, void *aux) 72 1.3.2.2 jym { 73 1.3.2.2 jym struct hpet_softc *sc = device_private(self); 74 1.3.2.2 jym struct lpcib_hpet_attach_args *arg = aux; 75 1.3.2.2 jym 76 1.3.2.2 jym sc->sc_mapped = false; 77 1.3.2.2 jym sc->sc_memt = arg->hpet_mem_t; 78 1.3.2.2 jym sc->sc_mems = HPET_WINDOW_SIZE; 79 1.3.2.2 jym 80 1.3.2.2 jym if (bus_space_map(sc->sc_memt, arg->hpet_reg, 81 1.3.2.2 jym sc->sc_mems, 0, &sc->sc_memh) != 0) { 82 1.3.2.2 jym aprint_error(": failed to map mem space\n"); 83 1.3.2.2 jym return; 84 1.3.2.2 jym } 85 1.3.2.2 jym 86 1.3.2.2 jym aprint_naive("\n"); 87 1.3.2.2 jym aprint_normal(": high precision event timer (mem 0x%08x-0x%08x)\n", 88 1.3.2.2 jym arg->hpet_reg, arg->hpet_reg + HPET_WINDOW_SIZE); 89 1.3.2.2 jym 90 1.3.2.2 jym sc->sc_mapped = true; 91 1.3.2.2 jym hpet_attach_subr(self); 92 1.3.2.2 jym } 93 1.3.2.2 jym 94 1.3.2.2 jym static int 95 1.3.2.2 jym lpcib_hpet_detach(device_t self, int flags) 96 1.3.2.2 jym { 97 1.3.2.2 jym struct hpet_softc *sc = device_private(self); 98 1.3.2.2 jym int rv; 99 1.3.2.2 jym 100 1.3.2.2 jym if (sc->sc_mapped != true) 101 1.3.2.2 jym return 0; 102 1.3.2.2 jym 103 1.3.2.2 jym rv = hpet_detach(self, flags); 104 1.3.2.2 jym 105 1.3.2.2 jym if (rv != 0) 106 1.3.2.2 jym return rv; 107 1.3.2.2 jym 108 1.3.2.2 jym bus_space_unmap(sc->sc_memt, sc->sc_memh, sc->sc_mems); 109 1.3.2.2 jym 110 1.3.2.2 jym return 0; 111 1.3.2.2 jym } 112
Indexes created Sat Oct 25 07:10:08 GMT 2025