atppc_acpi.c revision 1.2
1 /* $NetBSD: atppc_acpi.c,v 1.2 2004/04/10 11:48:11 kochi 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 1.2 2004/04/10 11:48:11 kochi 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 <machine/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 *, caddr_t *, bus_addr_t *, 92 bus_size_t); 93 static void atppc_acpi_dma_free(struct device *, caddr_t *, 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 printf(": AT Parallel Port\n"); 125 126 /* parse resources */ 127 rv = acpi_resource_parse(&sc->sc_dev, aa->aa_node, &res, 128 &acpi_resource_parse_ops_default); 129 if (ACPI_FAILURE(rv)) 130 return; 131 132 /* find our i/o registers */ 133 io = acpi_res_io(&res, 0); 134 if (io == NULL) { 135 printf("%s: unable to find i/o register resource\n", 136 sc->sc_dev.dv_xname); 137 return; 138 } 139 140 /* find our IRQ */ 141 irq = acpi_res_irq(&res, 0); 142 if (irq == NULL) { 143 printf("%s: unable to find irq resource\n", 144 sc->sc_dev.dv_xname); 145 return; 146 } 147 nirq = irq->ar_irq; 148 149 /* find our DRQ */ 150 drq = acpi_res_drq(&res, 0); 151 if (drq == NULL) { 152 printf("%s: unable to find drq resource\n", 153 sc->sc_dev.dv_xname); 154 return; 155 } 156 asc->sc_drq = drq->ar_drq; 157 158 /* Attach */ 159 sc->sc_iot = aa->aa_iot; 160 sc->sc_has = 0; 161 asc->sc_ic = aa->aa_ic; 162 163 sc->sc_dev_ok = ATPPC_ATTACHED; 164 165 if (bus_space_map(sc->sc_iot, io->ar_base, io->ar_length, 0, 166 &sc->sc_ioh) != 0) { 167 printf("%s: attempt to map bus space failed, device not " 168 "properly attached.\n", self->dv_xname); 169 return; 170 } 171 172 sc->sc_ieh = isa_intr_establish(aa->aa_ic, nirq, 173 (irq->ar_type == ACPI_EDGE_SENSITIVE) ? IST_EDGE : IST_LEVEL, 174 IPL_TTY, atppcintr, sc); 175 176 /* setup DMA hooks */ 177 if (atppc_isadma_setup(sc, asc->sc_ic, asc->sc_drq) == 0) { 178 sc->sc_has |= ATPPC_HAS_DMA; 179 sc->sc_dma_start = atppc_acpi_dma_start; 180 sc->sc_dma_finish = atppc_acpi_dma_finish; 181 sc->sc_dma_abort = atppc_acpi_dma_abort; 182 sc->sc_dma_malloc = atppc_acpi_dma_malloc; 183 sc->sc_dma_free = atppc_acpi_dma_free; 184 } 185 186 sc->sc_has |= ATPPC_HAS_INTR; 187 188 /* Run soft configuration attach */ 189 atppc_sc_attach(sc); 190 } 191 192 /* Start DMA operation over ISA bus */ 193 static int 194 atppc_acpi_dma_start(struct atppc_softc *lsc, void *buf, u_int nbytes, 195 u_int8_t mode) 196 { 197 struct atppc_acpi_softc * sc = (struct atppc_acpi_softc *) lsc; 198 199 return atppc_isadma_start(sc->sc_ic, sc->sc_drq, buf, nbytes, mode); 200 } 201 202 /* Stop DMA operation over ISA bus */ 203 static int 204 atppc_acpi_dma_finish(struct atppc_softc * lsc) 205 { 206 struct atppc_acpi_softc * sc = (struct atppc_acpi_softc *) lsc; 207 208 return atppc_isadma_finish(sc->sc_ic, sc->sc_drq); 209 } 210 211 /* Abort DMA operation over ISA bus */ 212 int 213 atppc_acpi_dma_abort(struct atppc_softc * lsc) 214 { 215 struct atppc_acpi_softc * sc = (struct atppc_acpi_softc *) lsc; 216 217 return atppc_isadma_abort(sc->sc_ic, sc->sc_drq); 218 } 219 220 /* Allocate memory for DMA over ISA bus */ 221 int 222 atppc_acpi_dma_malloc(struct device * dev, caddr_t * buf, bus_addr_t * bus_addr, 223 bus_size_t size) 224 { 225 struct atppc_acpi_softc * sc = (struct atppc_acpi_softc *) dev; 226 227 return atppc_isadma_malloc(sc->sc_ic, sc->sc_drq, buf, bus_addr, size); 228 } 229 230 /* Free memory allocated by atppc_isa_dma_malloc() */ 231 void 232 atppc_acpi_dma_free(struct device * dev, caddr_t * buf, bus_addr_t * bus_addr, 233 bus_size_t size) 234 { 235 struct atppc_acpi_softc * sc = (struct atppc_acpi_softc *) dev; 236 237 return atppc_isadma_free(sc->sc_ic, sc->sc_drq, buf, bus_addr, size); 238 } 239
Indexes created Tue Sep 23 07:09:52 GMT 2025