1 /* $NetBSD: atppc_acpi.c,v 1.10 2007/10/19 11:59:35 ad 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 1.10 2007/10/19 11:59:35 ad 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(struct device *, struct cfdata *, void *); 66 static void atppc_acpi_attach(struct device *, struct device *, 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(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(struct device *, void **, bus_addr_t *, 92 bus_size_t); 93 static void atppc_acpi_dma_free(struct device *, 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(struct device *parent, struct cfdata *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(struct device *parent, struct device *self, void *aux) 111 { 112 struct atppc_softc *sc = (struct atppc_softc *) self; 113 struct atppc_acpi_softc *asc = (struct atppc_acpi_softc *)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("%s: unable to find i/o register resource\n", 137 sc->sc_dev.dv_xname); 138 goto out; 139 } 140 141 /* find our IRQ */ 142 irq = acpi_res_irq(&res, 0); 143 if (irq == NULL) { 144 aprint_error("%s: unable to find irq resource\n", 145 sc->sc_dev.dv_xname); 146 goto out; 147 } 148 nirq = irq->ar_irq; 149 150 /* find our DRQ */ 151 drq = acpi_res_drq(&res, 0); 152 if (drq == NULL) { 153 aprint_error("%s: unable to find drq resource\n", 154 sc->sc_dev.dv_xname); 155 goto out; 156 } 157 asc->sc_drq = drq->ar_drq; 158 159 /* Attach */ 160 sc->sc_iot = aa->aa_iot; 161 sc->sc_has = 0; 162 asc->sc_ic = aa->aa_ic; 163 164 sc->sc_dev_ok = ATPPC_ATTACHED; 165 166 if (bus_space_map(sc->sc_iot, io->ar_base, io->ar_length, 0, 167 &sc->sc_ioh) != 0) { 168 aprint_error("%s: attempt to map bus space failed, device not " 169 "properly attached.\n", self->dv_xname); 170 goto out; 171 } 172 173 sc->sc_ieh = isa_intr_establish(aa->aa_ic, nirq, 174 (irq->ar_type == ACPI_EDGE_SENSITIVE) ? IST_EDGE : IST_LEVEL, 175 IPL_TTY, atppcintr, sc); 176 177 /* setup DMA hooks */ 178 if (atppc_isadma_setup(sc, asc->sc_ic, asc->sc_drq) == 0) { 179 sc->sc_has |= ATPPC_HAS_DMA; 180 sc->sc_dma_start = atppc_acpi_dma_start; 181 sc->sc_dma_finish = atppc_acpi_dma_finish; 182 sc->sc_dma_abort = atppc_acpi_dma_abort; 183 sc->sc_dma_malloc = atppc_acpi_dma_malloc; 184 sc->sc_dma_free = atppc_acpi_dma_free; 185 } 186 187 sc->sc_has |= ATPPC_HAS_INTR; 188 189 /* Run soft configuration attach */ 190 atppc_sc_attach(sc); 191 out: 192 acpi_resource_cleanup(&res); 193 } 194 195 /* Start DMA operation over ISA bus */ 196 static int 197 atppc_acpi_dma_start(struct atppc_softc *lsc, void *buf, u_int nbytes, 198 u_int8_t mode) 199 { 200 struct atppc_acpi_softc * sc = (struct atppc_acpi_softc *) lsc; 201 202 return atppc_isadma_start(sc->sc_ic, sc->sc_drq, buf, nbytes, mode); 203 } 204 205 /* Stop DMA operation over ISA bus */ 206 static int 207 atppc_acpi_dma_finish(struct atppc_softc * lsc) 208 { 209 struct atppc_acpi_softc * sc = (struct atppc_acpi_softc *) lsc; 210 211 return atppc_isadma_finish(sc->sc_ic, sc->sc_drq); 212 } 213 214 /* Abort DMA operation over ISA bus */ 215 int 216 atppc_acpi_dma_abort(struct atppc_softc * lsc) 217 { 218 struct atppc_acpi_softc * sc = (struct atppc_acpi_softc *) lsc; 219 220 return atppc_isadma_abort(sc->sc_ic, sc->sc_drq); 221 } 222 223 /* Allocate memory for DMA over ISA bus */ 224 static int 225 atppc_acpi_dma_malloc(struct device * dev, void ** buf, bus_addr_t * bus_addr, 226 bus_size_t size) 227 { 228 struct atppc_acpi_softc * sc = (struct atppc_acpi_softc *) dev; 229 230 return atppc_isadma_malloc(sc->sc_ic, sc->sc_drq, buf, bus_addr, size); 231 } 232 233 /* Free memory allocated by atppc_isa_dma_malloc() */ 234 static void 235 atppc_acpi_dma_free(struct device * dev, void ** buf, bus_addr_t * bus_addr, 236 bus_size_t size) 237 { 238 struct atppc_acpi_softc * sc = (struct atppc_acpi_softc *) dev; 239 240 return atppc_isadma_free(sc->sc_ic, sc->sc_drq, buf, bus_addr, size); 241 } 242