atppc_acpi.c revision 1.13
1 /* $NetBSD: atppc_acpi.c,v 1.13 2008/04/16 09:39:01 cegger Exp $ */ 2 3 /*- 4 * Copyright (c) 2004 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jaromir Dolecek. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: atppc_acpi.c,v 1.13 2008/04/16 09:39:01 cegger Exp $"); 41 42 #include "opt_atppc.h" 43 44 #include <sys/param.h> 45 #include <sys/systm.h> 46 #include <sys/errno.h> 47 #include <sys/ioctl.h> 48 #include <sys/syslog.h> 49 #include <sys/device.h> 50 #include <sys/proc.h> 51 #include <sys/termios.h> 52 53 #include <sys/bus.h> 54 55 #include <dev/isa/isavar.h> 56 #include <dev/isa/isadmavar.h> 57 58 #include <dev/acpi/acpica.h> 59 #include <dev/acpi/acpireg.h> 60 #include <dev/acpi/acpivar.h> 61 62 #include <dev/ic/atppcvar.h> 63 #include <dev/isa/atppc_isadma.h> 64 65 static int atppc_acpi_match(device_t, cfdata_t, void *); 66 static void atppc_acpi_attach(device_t, device_t, void *); 67 68 struct atppc_acpi_softc { 69 struct atppc_softc sc_atppc; 70 71 isa_chipset_tag_t sc_ic; 72 int sc_drq; 73 }; 74 75 CFATTACH_DECL_NEW(atppc_acpi, sizeof(struct atppc_acpi_softc), atppc_acpi_match, 76 atppc_acpi_attach, NULL, NULL); 77 78 /* 79 * Supported device IDs 80 */ 81 82 static const char * const atppc_acpi_ids[] = { 83 "PNP04??", /* Standard AT printer port */ 84 NULL 85 }; 86 87 static int atppc_acpi_dma_start(struct atppc_softc *, void *, u_int, 88 u_int8_t); 89 static int atppc_acpi_dma_finish(struct atppc_softc *); 90 static int atppc_acpi_dma_abort(struct atppc_softc *); 91 static int atppc_acpi_dma_malloc(device_t, void **, bus_addr_t *, 92 bus_size_t); 93 static void atppc_acpi_dma_free(device_t, void **, bus_addr_t *, 94 bus_size_t); 95 /* 96 * atppc_acpi_match: autoconf(9) match routine 97 */ 98 static int 99 atppc_acpi_match(device_t parent, cfdata_t match, void *aux) 100 { 101 struct acpi_attach_args *aa = aux; 102 103 if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE) 104 return 0; 105 106 return acpi_match_hid(aa->aa_node->ad_devinfo, atppc_acpi_ids); 107 } 108 109 static void 110 atppc_acpi_attach(device_t parent, device_t self, void *aux) 111 { 112 struct atppc_softc *sc = device_private(self); 113 struct atppc_acpi_softc *asc = device_private(self); 114 struct acpi_attach_args *aa = aux; 115 struct acpi_resources res; 116 struct acpi_io *io; 117 struct acpi_irq *irq; 118 struct acpi_drq *drq; 119 ACPI_STATUS rv; 120 int nirq; 121 122 sc->sc_dev_ok = ATPPC_NOATTACH; 123 124 aprint_naive(": AT Parallel Port\n"); 125 aprint_normal(": AT Parallel Port\n"); 126 127 /* parse resources */ 128 rv = acpi_resource_parse(sc->sc_dev, aa->aa_node->ad_handle, "_CRS", 129 &res, &acpi_resource_parse_ops_default); 130 if (ACPI_FAILURE(rv)) 131 return; 132 133 /* find our i/o registers */ 134 io = acpi_res_io(&res, 0); 135 if (io == NULL) { 136 aprint_error_dev(sc->sc_dev, "unable to find i/o register resource\n"); 137 goto out; 138 } 139 140 /* find our IRQ */ 141 irq = acpi_res_irq(&res, 0); 142 if (irq == NULL) { 143 aprint_error_dev(sc->sc_dev, "unable to find irq resource\n"); 144 goto out; 145 } 146 nirq = irq->ar_irq; 147 148 /* find our DRQ */ 149 drq = acpi_res_drq(&res, 0); 150 if (drq == NULL) { 151 aprint_error_dev(sc->sc_dev, "unable to find drq resource\n"); 152 goto out; 153 } 154 asc->sc_drq = drq->ar_drq; 155 156 /* Attach */ 157 sc->sc_dev = self; 158 sc->sc_iot = aa->aa_iot; 159 sc->sc_has = 0; 160 asc->sc_ic = aa->aa_ic; 161 162 sc->sc_dev_ok = ATPPC_ATTACHED; 163 164 if (bus_space_map(sc->sc_iot, io->ar_base, io->ar_length, 0, 165 &sc->sc_ioh) != 0) { 166 aprint_error_dev(self, "attempt to map bus space failed, device not " 167 "properly attached.\n"); 168 goto out; 169 } 170 171 sc->sc_ieh = isa_intr_establish(aa->aa_ic, nirq, 172 (irq->ar_type == ACPI_EDGE_SENSITIVE) ? IST_EDGE : IST_LEVEL, 173 IPL_TTY, atppcintr, sc); 174 175 /* setup DMA hooks */ 176 if (atppc_isadma_setup(sc, asc->sc_ic, asc->sc_drq) == 0) { 177 sc->sc_has |= ATPPC_HAS_DMA; 178 sc->sc_dma_start = atppc_acpi_dma_start; 179 sc->sc_dma_finish = atppc_acpi_dma_finish; 180 sc->sc_dma_abort = atppc_acpi_dma_abort; 181 sc->sc_dma_malloc = atppc_acpi_dma_malloc; 182 sc->sc_dma_free = atppc_acpi_dma_free; 183 } 184 185 sc->sc_has |= ATPPC_HAS_INTR; 186 187 /* Run soft configuration attach */ 188 atppc_sc_attach(sc); 189 out: 190 acpi_resource_cleanup(&res); 191 } 192 193 /* Start DMA operation over ISA bus */ 194 static int 195 atppc_acpi_dma_start(struct atppc_softc *lsc, void *buf, u_int nbytes, 196 u_int8_t mode) 197 { 198 struct atppc_acpi_softc * sc = (struct atppc_acpi_softc *) lsc; 199 200 return atppc_isadma_start(sc->sc_ic, sc->sc_drq, buf, nbytes, mode); 201 } 202 203 /* Stop DMA operation over ISA bus */ 204 static int 205 atppc_acpi_dma_finish(struct atppc_softc * lsc) 206 { 207 struct atppc_acpi_softc * sc = (struct atppc_acpi_softc *) lsc; 208 209 return atppc_isadma_finish(sc->sc_ic, sc->sc_drq); 210 } 211 212 /* Abort DMA operation over ISA bus */ 213 int 214 atppc_acpi_dma_abort(struct atppc_softc * lsc) 215 { 216 struct atppc_acpi_softc * sc = (struct atppc_acpi_softc *) lsc; 217 218 return atppc_isadma_abort(sc->sc_ic, sc->sc_drq); 219 } 220 221 /* Allocate memory for DMA over ISA bus */ 222 static int 223 atppc_acpi_dma_malloc(device_t dev, void ** buf, bus_addr_t * bus_addr, 224 bus_size_t size) 225 { 226 struct atppc_acpi_softc * sc = device_private(dev); 227 228 return atppc_isadma_malloc(sc->sc_ic, sc->sc_drq, buf, bus_addr, size); 229 } 230 231 /* Free memory allocated by atppc_isa_dma_malloc() */ 232 static void 233 atppc_acpi_dma_free(device_t dev, void ** buf, bus_addr_t * bus_addr, 234 bus_size_t size) 235 { 236 struct atppc_acpi_softc * sc = device_private(dev); 237 238 return atppc_isadma_free(sc->sc_ic, sc->sc_drq, buf, bus_addr, size); 239 } 240
Indexes created Thu Sep 25 06:09:39 GMT 2025