hdaudio_pci.c revision 1.1.2.6
1 1.1.2.6 skrll /* $NetBSD: hdaudio_pci.c,v 1.1.2.6 2017/02/05 13:40:29 skrll Exp $ */ 2 1.1.2.2 skrll 3 1.1.2.2 skrll /* 4 1.1.2.2 skrll * Copyright (c) 2009 Precedence Technologies Ltd <support (at) precedence.co.uk> 5 1.1.2.2 skrll * Copyright (c) 2009 Jared D. McNeill <jmcneill (at) invisible.ca> 6 1.1.2.2 skrll * All rights reserved. 7 1.1.2.2 skrll * 8 1.1.2.2 skrll * This code is derived from software contributed to The NetBSD Foundation 9 1.1.2.2 skrll * by Precedence Technologies Ltd 10 1.1.2.2 skrll * 11 1.1.2.2 skrll * Redistribution and use in source and binary forms, with or without 12 1.1.2.2 skrll * modification, are permitted provided that the following conditions 13 1.1.2.2 skrll * are met: 14 1.1.2.2 skrll * 1. Redistributions of source code must retain the above copyright 15 1.1.2.2 skrll * notice, this list of conditions and the following disclaimer. 16 1.1.2.2 skrll * 2. The name of the author may not be used to endorse or promote products 17 1.1.2.2 skrll * derived from this software without specific prior written permission. 18 1.1.2.2 skrll * 19 1.1.2.2 skrll * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 1.1.2.2 skrll * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 1.1.2.2 skrll * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 1.1.2.2 skrll * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 1.1.2.2 skrll * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 24 1.1.2.2 skrll * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 25 1.1.2.2 skrll * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 26 1.1.2.2 skrll * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 27 1.1.2.2 skrll * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 1.1.2.2 skrll * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 1.1.2.2 skrll * SUCH DAMAGE. 30 1.1.2.2 skrll */ 31 1.1.2.2 skrll 32 1.1.2.2 skrll /* 33 1.1.2.2 skrll * Intel High Definition Audio (Revision 1.0a) device driver. 34 1.1.2.2 skrll */ 35 1.1.2.2 skrll 36 1.1.2.2 skrll #include <sys/cdefs.h> 37 1.1.2.6 skrll __KERNEL_RCSID(0, "$NetBSD: hdaudio_pci.c,v 1.1.2.6 2017/02/05 13:40:29 skrll Exp $"); 38 1.1.2.2 skrll 39 1.1.2.2 skrll #include <sys/types.h> 40 1.1.2.2 skrll #include <sys/param.h> 41 1.1.2.2 skrll #include <sys/systm.h> 42 1.1.2.2 skrll #include <sys/device.h> 43 1.1.2.2 skrll #include <sys/conf.h> 44 1.1.2.2 skrll #include <sys/bus.h> 45 1.1.2.2 skrll #include <sys/intr.h> 46 1.1.2.2 skrll #include <sys/module.h> 47 1.1.2.2 skrll 48 1.1.2.2 skrll #include <dev/pci/pcidevs.h> 49 1.1.2.2 skrll #include <dev/pci/pcivar.h> 50 1.1.2.2 skrll 51 1.1.2.2 skrll #include <dev/hdaudio/hdaudioreg.h> 52 1.1.2.2 skrll #include <dev/hdaudio/hdaudiovar.h> 53 1.1.2.2 skrll #include <dev/pci/hdaudio_pci.h> 54 1.1.2.2 skrll 55 1.1.2.2 skrll struct hdaudio_pci_softc { 56 1.1.2.2 skrll struct hdaudio_softc sc_hdaudio; /* must be first */ 57 1.1.2.2 skrll pcitag_t sc_tag; 58 1.1.2.2 skrll pci_chipset_tag_t sc_pc; 59 1.1.2.2 skrll void *sc_ih; 60 1.1.2.2 skrll pcireg_t sc_id; 61 1.1.2.6 skrll pci_intr_handle_t *sc_pihp; 62 1.1.2.2 skrll }; 63 1.1.2.2 skrll 64 1.1.2.4 skrll static int hdaudio_pci_match(device_t, cfdata_t, void *); 65 1.1.2.4 skrll static void hdaudio_pci_attach(device_t, device_t, void *); 66 1.1.2.4 skrll static int hdaudio_pci_detach(device_t, int); 67 1.1.2.4 skrll static int hdaudio_pci_rescan(device_t, const char *, const int *); 68 1.1.2.4 skrll static void hdaudio_pci_childdet(device_t, device_t); 69 1.1.2.2 skrll 70 1.1.2.4 skrll static int hdaudio_pci_intr(void *); 71 1.1.2.4 skrll static void hdaudio_pci_reinit(struct hdaudio_pci_softc *); 72 1.1.2.2 skrll 73 1.1.2.2 skrll /* power management */ 74 1.1.2.4 skrll static bool hdaudio_pci_resume(device_t, const pmf_qual_t *); 75 1.1.2.2 skrll 76 1.1.2.2 skrll CFATTACH_DECL2_NEW( 77 1.1.2.2 skrll hdaudio_pci, 78 1.1.2.2 skrll sizeof(struct hdaudio_pci_softc), 79 1.1.2.2 skrll hdaudio_pci_match, 80 1.1.2.2 skrll hdaudio_pci_attach, 81 1.1.2.2 skrll hdaudio_pci_detach, 82 1.1.2.2 skrll NULL, 83 1.1.2.2 skrll hdaudio_pci_rescan, 84 1.1.2.2 skrll hdaudio_pci_childdet 85 1.1.2.2 skrll ); 86 1.1.2.2 skrll 87 1.1.2.2 skrll /* 88 1.1.2.2 skrll * NetBSD autoconfiguration 89 1.1.2.2 skrll */ 90 1.1.2.2 skrll 91 1.1.2.2 skrll static int 92 1.1.2.2 skrll hdaudio_pci_match(device_t parent, cfdata_t match, void *opaque) 93 1.1.2.2 skrll { 94 1.1.2.2 skrll struct pci_attach_args *pa = opaque; 95 1.1.2.2 skrll 96 1.1.2.2 skrll if (PCI_CLASS(pa->pa_class) != PCI_CLASS_MULTIMEDIA) 97 1.1.2.2 skrll return 0; 98 1.1.2.2 skrll if (PCI_SUBCLASS(pa->pa_class) != PCI_SUBCLASS_MULTIMEDIA_HDAUDIO) 99 1.1.2.2 skrll return 0; 100 1.1.2.2 skrll 101 1.1.2.2 skrll return 10; 102 1.1.2.2 skrll } 103 1.1.2.2 skrll 104 1.1.2.2 skrll static void 105 1.1.2.2 skrll hdaudio_pci_attach(device_t parent, device_t self, void *opaque) 106 1.1.2.2 skrll { 107 1.1.2.2 skrll struct hdaudio_pci_softc *sc = device_private(self); 108 1.1.2.2 skrll struct pci_attach_args *pa = opaque; 109 1.1.2.2 skrll const char *intrstr; 110 1.1.2.2 skrll pcireg_t csr; 111 1.1.2.2 skrll int err; 112 1.1.2.2 skrll char intrbuf[PCI_INTRSTR_LEN]; 113 1.1.2.2 skrll 114 1.1.2.2 skrll aprint_naive("\n"); 115 1.1.2.2 skrll aprint_normal(": HD Audio Controller\n"); 116 1.1.2.2 skrll 117 1.1.2.2 skrll sc->sc_pc = pa->pa_pc; 118 1.1.2.2 skrll sc->sc_tag = pa->pa_tag; 119 1.1.2.2 skrll sc->sc_id = pa->pa_id; 120 1.1.2.2 skrll 121 1.1.2.2 skrll sc->sc_hdaudio.sc_subsystem = pci_conf_read(sc->sc_pc, sc->sc_tag, 122 1.1.2.2 skrll PCI_SUBSYS_ID_REG); 123 1.1.2.2 skrll 124 1.1.2.2 skrll /* Enable busmastering and MMIO access */ 125 1.1.2.2 skrll csr = pci_conf_read(sc->sc_pc, sc->sc_tag, PCI_COMMAND_STATUS_REG); 126 1.1.2.2 skrll csr |= PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_BACKTOBACK_ENABLE; 127 1.1.2.2 skrll pci_conf_write(sc->sc_pc, sc->sc_tag, PCI_COMMAND_STATUS_REG, csr); 128 1.1.2.2 skrll 129 1.1.2.2 skrll /* Map MMIO registers */ 130 1.1.2.2 skrll err = pci_mapreg_map(pa, HDAUDIO_PCI_AZBARL, PCI_MAPREG_TYPE_MEM, 0, 131 1.1.2.2 skrll &sc->sc_hdaudio.sc_memt, 132 1.1.2.2 skrll &sc->sc_hdaudio.sc_memh, 133 1.1.2.2 skrll &sc->sc_hdaudio.sc_membase, 134 1.1.2.2 skrll &sc->sc_hdaudio.sc_memsize); 135 1.1.2.2 skrll if (err) { 136 1.1.2.2 skrll aprint_error_dev(self, "couldn't map mmio space\n"); 137 1.1.2.2 skrll return; 138 1.1.2.2 skrll } 139 1.1.2.2 skrll sc->sc_hdaudio.sc_memvalid = true; 140 1.1.2.2 skrll sc->sc_hdaudio.sc_dmat = pa->pa_dmat; 141 1.1.2.2 skrll 142 1.1.2.2 skrll /* Map interrupt and establish handler */ 143 1.1.2.6 skrll if (pci_intr_alloc(pa, &sc->sc_pihp, NULL, 0)) { 144 1.1.2.2 skrll aprint_error_dev(self, "couldn't map interrupt\n"); 145 1.1.2.2 skrll return; 146 1.1.2.2 skrll } 147 1.1.2.6 skrll intrstr = pci_intr_string(pa->pa_pc, sc->sc_pihp[0], intrbuf, 148 1.1.2.6 skrll sizeof(intrbuf)); 149 1.1.2.6 skrll sc->sc_ih = pci_intr_establish(pa->pa_pc, sc->sc_pihp[0], IPL_AUDIO, 150 1.1.2.2 skrll hdaudio_pci_intr, sc); 151 1.1.2.2 skrll if (sc->sc_ih == NULL) { 152 1.1.2.2 skrll aprint_error_dev(self, "couldn't establish interrupt"); 153 1.1.2.2 skrll if (intrstr) 154 1.1.2.2 skrll aprint_error(" at %s", intrstr); 155 1.1.2.2 skrll aprint_error("\n"); 156 1.1.2.2 skrll return; 157 1.1.2.2 skrll } 158 1.1.2.2 skrll aprint_normal_dev(self, "interrupting at %s\n", intrstr); 159 1.1.2.2 skrll 160 1.1.2.2 skrll hdaudio_pci_reinit(sc); 161 1.1.2.2 skrll 162 1.1.2.2 skrll /* Attach bus-independent HD audio layer */ 163 1.1.2.2 skrll if (hdaudio_attach(self, &sc->sc_hdaudio)) { 164 1.1.2.2 skrll pci_intr_disestablish(sc->sc_pc, sc->sc_ih); 165 1.1.2.6 skrll pci_intr_release(sc->sc_pc, sc->sc_pihp, 1); 166 1.1.2.2 skrll sc->sc_ih = NULL; 167 1.1.2.2 skrll bus_space_unmap(sc->sc_hdaudio.sc_memt, 168 1.1.2.2 skrll sc->sc_hdaudio.sc_memh, 169 1.1.2.2 skrll sc->sc_hdaudio.sc_memsize); 170 1.1.2.2 skrll sc->sc_hdaudio.sc_memvalid = false; 171 1.1.2.5 skrll csr = pci_conf_read(sc->sc_pc, sc->sc_tag, 172 1.1.2.5 skrll PCI_COMMAND_STATUS_REG); 173 1.1.2.2 skrll csr &= ~(PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_BACKTOBACK_ENABLE); 174 1.1.2.5 skrll pci_conf_write(sc->sc_pc, sc->sc_tag, 175 1.1.2.5 skrll PCI_COMMAND_STATUS_REG, csr); 176 1.1.2.6 skrll 177 1.1.2.6 skrll if (!pmf_device_register(self, NULL, NULL)) 178 1.1.2.6 skrll aprint_error_dev(self, "couldn't establish power handler\n"); 179 1.1.2.2 skrll } 180 1.1.2.6 skrll else if (!pmf_device_register(self, NULL, hdaudio_pci_resume)) 181 1.1.2.6 skrll aprint_error_dev(self, "couldn't establish power handler\n"); 182 1.1.2.2 skrll } 183 1.1.2.2 skrll 184 1.1.2.2 skrll static int 185 1.1.2.2 skrll hdaudio_pci_rescan(device_t self, const char *ifattr, const int *locs) 186 1.1.2.2 skrll { 187 1.1.2.2 skrll struct hdaudio_pci_softc *sc = device_private(self); 188 1.1.2.2 skrll 189 1.1.2.2 skrll return hdaudio_rescan(&sc->sc_hdaudio, ifattr, locs); 190 1.1.2.2 skrll } 191 1.1.2.2 skrll 192 1.1.2.2 skrll void 193 1.1.2.2 skrll hdaudio_pci_childdet(device_t self, device_t child) 194 1.1.2.2 skrll { 195 1.1.2.2 skrll struct hdaudio_pci_softc *sc = device_private(self); 196 1.1.2.2 skrll 197 1.1.2.2 skrll hdaudio_childdet(&sc->sc_hdaudio, child); 198 1.1.2.2 skrll } 199 1.1.2.2 skrll 200 1.1.2.2 skrll static int 201 1.1.2.2 skrll hdaudio_pci_detach(device_t self, int flags) 202 1.1.2.2 skrll { 203 1.1.2.2 skrll struct hdaudio_pci_softc *sc = device_private(self); 204 1.1.2.2 skrll pcireg_t csr; 205 1.1.2.2 skrll 206 1.1.2.2 skrll hdaudio_detach(&sc->sc_hdaudio, flags); 207 1.1.2.2 skrll 208 1.1.2.2 skrll if (sc->sc_ih != NULL) { 209 1.1.2.2 skrll pci_intr_disestablish(sc->sc_pc, sc->sc_ih); 210 1.1.2.6 skrll pci_intr_release(sc->sc_pc, sc->sc_pihp, 1); 211 1.1.2.2 skrll sc->sc_ih = NULL; 212 1.1.2.2 skrll } 213 1.1.2.2 skrll if (sc->sc_hdaudio.sc_memvalid == true) { 214 1.1.2.2 skrll bus_space_unmap(sc->sc_hdaudio.sc_memt, 215 1.1.2.2 skrll sc->sc_hdaudio.sc_memh, 216 1.1.2.2 skrll sc->sc_hdaudio.sc_memsize); 217 1.1.2.2 skrll sc->sc_hdaudio.sc_memvalid = false; 218 1.1.2.2 skrll } 219 1.1.2.2 skrll 220 1.1.2.2 skrll /* Disable busmastering and MMIO access */ 221 1.1.2.2 skrll csr = pci_conf_read(sc->sc_pc, sc->sc_tag, PCI_COMMAND_STATUS_REG); 222 1.1.2.2 skrll csr &= ~(PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_BACKTOBACK_ENABLE); 223 1.1.2.2 skrll pci_conf_write(sc->sc_pc, sc->sc_tag, PCI_COMMAND_STATUS_REG, csr); 224 1.1.2.2 skrll 225 1.1.2.2 skrll pmf_device_deregister(self); 226 1.1.2.2 skrll 227 1.1.2.2 skrll return 0; 228 1.1.2.2 skrll } 229 1.1.2.2 skrll 230 1.1.2.2 skrll static int 231 1.1.2.2 skrll hdaudio_pci_intr(void *opaque) 232 1.1.2.2 skrll { 233 1.1.2.2 skrll struct hdaudio_pci_softc *sc = opaque; 234 1.1.2.2 skrll 235 1.1.2.2 skrll return hdaudio_intr(&sc->sc_hdaudio); 236 1.1.2.2 skrll } 237 1.1.2.2 skrll 238 1.1.2.2 skrll 239 1.1.2.2 skrll static void 240 1.1.2.2 skrll hdaudio_pci_reinit(struct hdaudio_pci_softc *sc) 241 1.1.2.2 skrll { 242 1.1.2.2 skrll pcireg_t val; 243 1.1.2.2 skrll 244 1.1.2.2 skrll /* stops playback static */ 245 1.1.2.2 skrll val = pci_conf_read(sc->sc_pc, sc->sc_tag, HDAUDIO_PCI_TCSEL); 246 1.1.2.2 skrll val &= ~7; 247 1.1.2.2 skrll val |= 0; 248 1.1.2.2 skrll pci_conf_write(sc->sc_pc, sc->sc_tag, HDAUDIO_PCI_TCSEL, val); 249 1.1.2.2 skrll 250 1.1.2.2 skrll switch (PCI_VENDOR(sc->sc_id)) { 251 1.1.2.2 skrll case PCI_VENDOR_NVIDIA: 252 1.1.2.2 skrll /* enable snooping */ 253 1.1.2.2 skrll val = pci_conf_read(sc->sc_pc, sc->sc_tag, 254 1.1.2.2 skrll HDAUDIO_NV_REG_SNOOP); 255 1.1.2.2 skrll val &= ~HDAUDIO_NV_SNOOP_MASK; 256 1.1.2.2 skrll val |= HDAUDIO_NV_SNOOP_ENABLE; 257 1.1.2.2 skrll pci_conf_write(sc->sc_pc, sc->sc_tag, 258 1.1.2.2 skrll HDAUDIO_NV_REG_SNOOP, val); 259 1.1.2.2 skrll break; 260 1.1.2.2 skrll } 261 1.1.2.2 skrll } 262 1.1.2.2 skrll 263 1.1.2.2 skrll static bool 264 1.1.2.2 skrll hdaudio_pci_resume(device_t self, const pmf_qual_t *qual) 265 1.1.2.2 skrll { 266 1.1.2.2 skrll struct hdaudio_pci_softc *sc = device_private(self); 267 1.1.2.2 skrll 268 1.1.2.2 skrll hdaudio_pci_reinit(sc); 269 1.1.2.2 skrll return hdaudio_resume(&sc->sc_hdaudio); 270 1.1.2.2 skrll } 271 1.1.2.2 skrll 272 1.1.2.2 skrll MODULE(MODULE_CLASS_DRIVER, hdaudio_pci, "hdaudio"); 273 1.1.2.2 skrll 274 1.1.2.2 skrll #ifdef _MODULE 275 1.1.2.2 skrll #include "ioconf.c" 276 1.1.2.2 skrll #endif 277 1.1.2.2 skrll 278 1.1.2.2 skrll static int 279 1.1.2.2 skrll hdaudio_pci_modcmd(modcmd_t cmd, void *opaque) 280 1.1.2.2 skrll { 281 1.1.2.2 skrll int error = 0; 282 1.1.2.2 skrll 283 1.1.2.2 skrll switch (cmd) { 284 1.1.2.2 skrll case MODULE_CMD_INIT: 285 1.1.2.2 skrll #ifdef _MODULE 286 1.1.2.2 skrll error = config_init_component(cfdriver_ioconf_hdaudio_pci, 287 1.1.2.2 skrll cfattach_ioconf_hdaudio_pci, cfdata_ioconf_hdaudio_pci); 288 1.1.2.2 skrll #endif 289 1.1.2.2 skrll return error; 290 1.1.2.2 skrll case MODULE_CMD_FINI: 291 1.1.2.2 skrll #ifdef _MODULE 292 1.1.2.2 skrll error = config_fini_component(cfdriver_ioconf_hdaudio_pci, 293 1.1.2.2 skrll cfattach_ioconf_hdaudio_pci, cfdata_ioconf_hdaudio_pci); 294 1.1.2.2 skrll #endif 295 1.1.2.2 skrll return error; 296 1.1.2.2 skrll default: 297 1.1.2.2 skrll return ENOTTY; 298 1.1.2.2 skrll } 299 1.1.2.2 skrll } 300
Indexes created Thu Oct 02 07:10:07 GMT 2025