1 /* $NetBSD: wss_acpi.c,v 1.38 2021/10/07 00:11:08 uwe Exp $ */ 2 3 /* 4 * Copyright (c) 2002 Jared D. McNeill <jmcneill (at) 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: wss_acpi.c,v 1.38 2021/10/07 00:11:08 uwe Exp $"); 30 31 #include <sys/param.h> 32 #include <sys/audioio.h> 33 #include <sys/device.h> 34 #include <sys/systm.h> 35 36 #include <dev/audio/audio_if.h> 37 38 #include <dev/acpi/acpivar.h> 39 40 #include <dev/isa/isadmavar.h> 41 #include <dev/isa/ad1848var.h> 42 #include <dev/isa/wssreg.h> 43 #include <dev/isa/wssvar.h> 44 45 static int wss_acpi_match(device_t, cfdata_t, void *); 46 static void wss_acpi_attach(device_t, device_t, void *); 47 48 CFATTACH_DECL_NEW(wss_acpi, sizeof(struct wss_softc), wss_acpi_match, 49 wss_acpi_attach, NULL, NULL); 50 51 /* 52 * Supported device IDs 53 */ 54 55 struct wss_acpi_hint { 56 char idstr[8]; 57 int io_region_idx_ad1848; /* which region index is the DAC? */ 58 int io_region_idx_opl; /* which region index is the OPL? */ 59 int offset_ad1848; /* offset from start of DAC region */ 60 }; 61 62 static const struct wss_acpi_hint wss_acpi_hints[] = { 63 { "NMX2210", 1, 2, WSS_CODEC }, 64 { "CSC0000", 0, 1, 0 }, /* Dell Latitude CPi */ 65 { "CSC0100", 0, 1, 0 }, /* CS4610 with CS4236 codec */ 66 }; 67 68 static int wss_acpi_hints_index (const char *); 69 70 static int 71 wss_acpi_hints_index(const char *idstr) 72 { 73 int idx; 74 75 if (idstr == NULL) 76 return -1; 77 for (idx = 0; idx < __arraycount(wss_acpi_hints); idx++) { 78 if (!strcmp(wss_acpi_hints[idx].idstr, idstr)) 79 return idx; 80 } 81 82 return -1; 83 } 84 85 /* 86 * wss_acpi_match: autoconf(9) match routine 87 */ 88 static int 89 wss_acpi_match(device_t parent, cfdata_t match, void *aux) 90 { 91 struct acpi_attach_args *aa = aux; 92 93 if ((aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 94 return 0; 95 96 if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE || 97 wss_acpi_hints_index(aa->aa_node->ad_devinfo->HardwareId.String) == -1) 98 return 0; 99 100 return 1; 101 } 102 103 /* 104 * wss_acpi_attach: autoconf(9) attach routine 105 */ 106 static void 107 wss_acpi_attach(device_t parent, device_t self, void *aux) 108 { 109 struct wss_softc *sc = device_private(self); 110 struct acpi_attach_args *aa = aux; 111 struct acpi_resources res; 112 struct acpi_io *dspio, *oplio; 113 struct acpi_irq *irq; 114 struct acpi_drq *playdrq, *recdrq; 115 struct audio_attach_args arg; 116 ACPI_STATUS rv; 117 const struct wss_acpi_hint *wah; 118 119 sc->sc_ad1848.sc_ad1848.sc_dev = self; 120 wah = &wss_acpi_hints[ 121 wss_acpi_hints_index(aa->aa_node->ad_devinfo->HardwareId.String)]; 122 123 /* Parse our resources */ 124 rv = acpi_resource_parse(self, 125 aa->aa_node->ad_handle, "_CRS", &res, 126 &acpi_resource_parse_ops_default); 127 if (ACPI_FAILURE(rv)) 128 return; 129 130 /* Find and map our i/o registers */ 131 sc->sc_iot = aa->aa_iot; 132 dspio = acpi_res_io(&res, wah->io_region_idx_ad1848); 133 oplio = acpi_res_io(&res, wah->io_region_idx_opl); 134 if (dspio == NULL || oplio == NULL) { 135 aprint_error_dev(self, 136 "unable to find i/o registers resource\n"); 137 goto out; 138 } 139 if (bus_space_map(sc->sc_iot, dspio->ar_base, dspio->ar_length, 140 0, &sc->sc_ioh) != 0) { 141 aprint_error_dev(self, "unable to map i/o registers\n"); 142 goto out; 143 } 144 if (bus_space_map(sc->sc_iot, oplio->ar_base, oplio->ar_length, 145 0, &sc->sc_opl_ioh) != 0) { 146 aprint_error_dev(self, "unable to map opl i/o registers\n"); 147 goto out; 148 } 149 150 sc->wss_ic = aa->aa_ic; 151 152 /* Find our IRQ */ 153 irq = acpi_res_irq(&res, 0); 154 if (irq == NULL) { 155 aprint_error_dev(self, "unable to find irq resource\n"); 156 /* XXX bus_space_unmap */ 157 goto out; 158 } 159 sc->wss_irq = irq->ar_irq; 160 161 /* Find our playback and record DRQs */ 162 playdrq = acpi_res_drq(&res, 0); 163 recdrq = acpi_res_drq(&res, 1); 164 if (playdrq == NULL || recdrq == NULL) { 165 aprint_error_dev(self, " unable to find drq resources\n"); 166 /* XXX bus_space_unmap */ 167 goto out; 168 } 169 sc->wss_playdrq = playdrq->ar_drq; 170 sc->wss_recdrq = recdrq->ar_drq; 171 172 sc->sc_ad1848.sc_ad1848.sc_iot = sc->sc_iot; 173 bus_space_subregion(sc->sc_iot, sc->sc_ioh, wah->offset_ad1848, 4, 174 &sc->sc_ad1848.sc_ad1848.sc_ioh); 175 176 /* Look for the ad1848 */ 177 if (!ad1848_isa_probe(&sc->sc_ad1848)) { 178 aprint_error_dev(self, "ad1848 probe failed\n"); 179 /* XXX cleanup */ 180 goto out; 181 } 182 183 /* Attach our wss device */ 184 aprint_naive("%s", device_xname(self)); 185 aprint_normal("%s", device_xname(self)); 186 wssattach(sc); 187 188 arg.type = AUDIODEV_TYPE_OPL; 189 arg.hwif = 0; 190 arg.hdl = 0; 191 config_found(self, &arg, audioprint, CFARGS(.iattr = "wss")); 192 193 out: 194 acpi_resource_cleanup(&res); 195 } 196
Indexes created Sun Sep 21 20:09:37 GMT 2025