1 /* $NetBSD: lpt_acpi.c,v 1.18 2009/02/17 12:46:01 jmcneill Exp $ */ 2 3 /* 4 * Copyright (c) 2002 Jared D. McNeill <jmcneill@invisible.ca> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. The name of the author may not be used to endorse or promote products 13 * derived from this software without specific prior written permission. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 20 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 22 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 #include <sys/cdefs.h> 29 __KERNEL_RCSID(0, "$NetBSD: lpt_acpi.c,v 1.18 2009/02/17 12:46:01 jmcneill Exp $"); 30 31 #include <sys/param.h> 32 #include <sys/systm.h> 33 #include <sys/errno.h> 34 #include <sys/ioctl.h> 35 #include <sys/syslog.h> 36 #include <sys/device.h> 37 #include <sys/proc.h> 38 #include <sys/termios.h> 39 40 #include <sys/bus.h> 41 42 #include <dev/isa/isavar.h> 43 #include <dev/isa/isadmavar.h> 44 45 #include <dev/acpi/acpica.h> 46 #include <dev/acpi/acpireg.h> 47 #include <dev/acpi/acpivar.h> 48 49 #include <dev/ic/lptvar.h> 50 51 static int lpt_acpi_match(device_t, cfdata_t, void *); 52 static void lpt_acpi_attach(device_t, device_t, void *); 53 54 struct lpt_acpi_softc { 55 struct lpt_softc sc_lpt; 56 }; 57 58 CFATTACH_DECL_NEW(lpt_acpi, sizeof(struct lpt_acpi_softc), lpt_acpi_match, 59 lpt_acpi_attach, NULL, NULL); 60 61 /* 62 * Supported device IDs 63 */ 64 65 static const char * const lpt_acpi_ids[] = { 66 "PNP04??", /* Standard LPT printer port */ 67 NULL 68 }; 69 70 /* 71 * lpt_acpi_match: autoconf(9) match routine 72 */ 73 static int 74 lpt_acpi_match(device_t parent, cfdata_t match, void *aux) 75 { 76 struct acpi_attach_args *aa = aux; 77 78 if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE) 79 return 0; 80 81 return acpi_match_hid(aa->aa_node->ad_devinfo, lpt_acpi_ids); 82 } 83 84 /* 85 * lpt_acpi_attach: autoconf(9) attach routine 86 */ 87 static void 88 lpt_acpi_attach(device_t parent, device_t self, void *aux) 89 { 90 struct lpt_acpi_softc *asc = device_private(self); 91 struct lpt_softc *sc = &asc->sc_lpt; 92 struct acpi_attach_args *aa = aux; 93 struct acpi_resources res; 94 struct acpi_io *io; 95 struct acpi_irq *irq; 96 ACPI_STATUS rv; 97 98 sc->sc_dev = self; 99 100 if (!pmf_device_register(self, NULL, NULL)) 101 aprint_error_dev(self, "couldn't establish power handler\n"); 102 103 /* parse resources */ 104 rv = acpi_resource_parse(sc->sc_dev, aa->aa_node->ad_handle, "_CRS", 105 &res, &acpi_resource_parse_ops_default); 106 if (ACPI_FAILURE(rv)) 107 return; 108 109 /* find our i/o registers */ 110 io = acpi_res_io(&res, 0); 111 if (io == NULL) { 112 aprint_error_dev(self, 113 "unable to find i/o register resource\n"); 114 goto out; 115 } 116 117 /* find our IRQ */ 118 irq = acpi_res_irq(&res, 0); 119 if (irq == NULL) { 120 aprint_error_dev(self, "unable to find irq resource\n"); 121 goto out; 122 } 123 124 sc->sc_iot = aa->aa_iot; 125 if (bus_space_map(sc->sc_iot, io->ar_base, io->ar_length, 126 0, &sc->sc_ioh)) { 127 aprint_error_dev(self, "can't map i/o space\n"); 128 goto out; 129 } 130 131 lpt_attach_subr(sc); 132 133 sc->sc_ih = isa_intr_establish(aa->aa_ic, irq->ar_irq, 134 (irq->ar_type == ACPI_EDGE_SENSITIVE) ? IST_EDGE : IST_LEVEL, 135 IPL_TTY, lptintr, sc); 136 137 out: 138 acpi_resource_cleanup(&res); 139 } 140