static int bcm2835_audio_attach(device_t dev) { struct bcm2835_audio_info *sc; sc = malloc(sizeof(*sc), M_DEVBUF, M_WAITOK | M_ZERO); sc->dev = dev; sc->bufsz = VCHIQ_AUDIO_BUFFER_SIZE; sc->lock = snd_mtxcreate(device_get_nameunit(dev), "bcm2835_audio softc"); mtx_init(&sc->vchi_lock, "bcm2835_audio", "vchi_lock", MTX_DEF); mtx_init(&sc->msg_avail_lock, "msg_avail_mtx", "msg_avail_mtx", MTX_DEF); cv_init(&sc->msg_avail_cv, "msg_avail_cv"); mtx_init(&sc->data_lock, "data_mtx", "data_mtx", MTX_DEF); cv_init(&sc->data_cv, "data_cv"); sc->vchi_handle = VCHIQ_SERVICE_HANDLE_INVALID; /* * We need interrupts enabled for VCHI to work properly, * so delay intialization until it happens */ sc->intr_hook.ich_func = bcm2835_audio_delayed_init; sc->intr_hook.ich_arg = sc; if (config_intrhook_establish(&sc->intr_hook) != 0) goto no; return 0; no: return ENXIO; }
static int hdspe_attach(device_t dev) { struct sc_info *sc; struct sc_pcminfo *scp; struct hdspe_channel *chan_map; uint32_t rev; int i, err; #if 0 device_printf(dev, "hdspe_attach()\n"); #endif set_pci_config(dev); sc = device_get_softc(dev); sc->lock = snd_mtxcreate(device_get_nameunit(dev), "snd_hdspe softc"); sc->dev = dev; rev = pci_get_revid(dev); switch (rev) { case PCI_REVISION_AIO: sc->type = AIO; chan_map = chan_map_aio; break; case PCI_REVISION_RAYDAT: sc->type = RAYDAT; chan_map = chan_map_rd; break; default: return ENXIO; } /* Allocate resources. */ err = hdspe_alloc_resources(sc); if (err) { device_printf(dev, "Unable to allocate system resources.\n"); return ENXIO; } if (hdspe_init(sc) != 0) return ENXIO; for (i = 0; i < HDSPE_MAX_CHANS && chan_map[i].descr != NULL; i++) { scp = malloc(sizeof(struct sc_pcminfo), M_DEVBUF, M_NOWAIT | M_ZERO); scp->hc = &chan_map[i]; scp->sc = sc; scp->dev = device_add_child(dev, "pcm", -1); device_set_ivars(scp->dev, scp); } hdspe_map_dmabuf(sc); return (bus_generic_attach(dev)); }
static int ds_pci_attach(device_t dev) { u_int32_t subdev, i; struct sc_info *sc; struct ac97_info *codec = NULL; char status[SND_STATUSLEN]; sc = malloc(sizeof(*sc), M_DEVBUF, M_WAITOK | M_ZERO); sc->lock = snd_mtxcreate(device_get_nameunit(dev), "snd_ds1 softc"); sc->dev = dev; subdev = (pci_get_subdevice(dev) << 16) | pci_get_subvendor(dev); sc->type = ds_finddev(pci_get_devid(dev), subdev); sc->rev = pci_get_revid(dev); pci_enable_busmaster(dev); sc->regid = PCIR_BAR(0); sc->reg = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->regid, RF_ACTIVE); if (!sc->reg) { device_printf(dev, "unable to map register space\n"); goto bad; } sc->st = rman_get_bustag(sc->reg); sc->sh = rman_get_bushandle(sc->reg); sc->bufsz = pcm_getbuffersize(dev, 4096, DS1_BUFFSIZE, 65536); if (bus_dma_tag_create(/*parent*/bus_get_dma_tag(dev), /*alignment*/2, /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL, /*maxsize*/sc->bufsz, /*nsegments*/1, /*maxsegz*/0x3ffff, /*flags*/0, /*lockfunc*/NULL, /*lockarg*/NULL, &sc->buffer_dmat) != 0) { device_printf(dev, "unable to create dma tag\n"); goto bad; } sc->regbase = NULL; if (ds_init(sc) == -1) { device_printf(dev, "unable to initialize the card\n"); goto bad; } codec = AC97_CREATE(dev, sc, ds_ac97); if (codec == NULL) goto bad; /* * Turn on inverted external amplifier sense flags for few * 'special' boards. */ switch (subdev) { case 0x81171033: /* NEC ValueStar (VT550/0) */ ac97_setflags(codec, ac97_getflags(codec) | AC97_F_EAPD_INV); break; default: break; } mixer_init(dev, ac97_getmixerclass(), codec); sc->irqid = 0; sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irqid, RF_ACTIVE | RF_SHAREABLE); if (!sc->irq || snd_setup_intr(dev, sc->irq, INTR_MPSAFE, ds_intr, sc, &sc->ih)) { device_printf(dev, "unable to map interrupt\n"); goto bad; } snprintf(status, SND_STATUSLEN, "at memory 0x%lx irq %ld %s", rman_get_start(sc->reg), rman_get_start(sc->irq),PCM_KLDSTRING(snd_ds1)); if (pcm_register(dev, sc, DS1_CHANS, 2)) goto bad; for (i = 0; i < DS1_CHANS; i++) pcm_addchan(dev, PCMDIR_PLAY, &ds1pchan_class, sc); for (i = 0; i < 2; i++) pcm_addchan(dev, PCMDIR_REC, &ds1rchan_class, sc); pcm_setstatus(dev, status); return 0; bad: if (codec) ac97_destroy(codec); if (sc->reg) bus_release_resource(dev, SYS_RES_MEMORY, sc->regid, sc->reg); if (sc->ih) bus_teardown_intr(dev, sc->irq, sc->ih); if (sc->irq) bus_release_resource(dev, SYS_RES_IRQ, sc->irqid, sc->irq); if (sc->buffer_dmat) bus_dma_tag_destroy(sc->buffer_dmat); if (sc->control_dmat) bus_dma_tag_destroy(sc->control_dmat); if (sc->lock) snd_mtxfree(sc->lock); free(sc, M_DEVBUF); return ENXIO; }
static int atiixp_pci_attach(device_t dev) { struct atiixp_info *sc; int i; sc = kmalloc(sizeof(*sc), M_DEVBUF, M_WAITOK | M_ZERO); sc->lock = snd_mtxcreate(device_get_nameunit(dev), "sound softc"); sc->dev = dev; /* * Default DMA segments per playback / recording channel */ sc->dma_segs = ATI_IXP_DMA_CHSEGS; pci_set_powerstate(dev, PCI_POWERSTATE_D0); pci_enable_busmaster(dev); sc->regid = PCIR_BAR(0); sc->regtype = SYS_RES_MEMORY; sc->reg = bus_alloc_resource_any(dev, sc->regtype, &sc->regid, RF_ACTIVE); if (!sc->reg) { device_printf(dev, "unable to allocate register space\n"); goto bad; } sc->st = rman_get_bustag(sc->reg); sc->sh = rman_get_bushandle(sc->reg); sc->bufsz = pcm_getbuffersize(dev, 4096, ATI_IXP_DEFAULT_BUFSZ, 65536); sc->irqid = 0; sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irqid, RF_ACTIVE | RF_SHAREABLE); if (!sc->irq || snd_setup_intr(dev, sc->irq, INTR_MPSAFE, atiixp_intr, sc, &sc->ih)) { device_printf(dev, "unable to map interrupt\n"); goto bad; } /* * Let the user choose the best DMA segments. */ if (resource_int_value(device_get_name(dev), device_get_unit(dev), "dma_segs", &i) == 0) { if (i < ATI_IXP_DMA_CHSEGS_MIN) i = ATI_IXP_DMA_CHSEGS_MIN; if (i > ATI_IXP_DMA_CHSEGS_MAX) i = ATI_IXP_DMA_CHSEGS_MAX; sc->dma_segs = i; } /* * round the value to the nearest ^2 */ i = 0; while (sc->dma_segs >> i) i++; sc->dma_segs = 1 << (i - 1); if (sc->dma_segs < ATI_IXP_DMA_CHSEGS_MIN) sc->dma_segs = ATI_IXP_DMA_CHSEGS_MIN; else if (sc->dma_segs > ATI_IXP_DMA_CHSEGS_MAX) sc->dma_segs = ATI_IXP_DMA_CHSEGS_MAX; /* * DMA tag for scatter-gather buffers and link pointers */ if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL, /*maxsize*/sc->bufsz, /*nsegments*/1, /*maxsegz*/0x3ffff, /*flags*/0, &sc->parent_dmat) != 0) { device_printf(dev, "unable to create dma tag\n"); goto bad; } if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL, /*maxsize*/sc->dma_segs * ATI_IXP_NCHANS * sizeof(struct atiixp_dma_op), /*nsegments*/1, /*maxsegz*/0x3ffff, /*flags*/0, &sc->sgd_dmat) != 0) { device_printf(dev, "unable to create dma tag\n"); goto bad; } if (bus_dmamem_alloc(sc->sgd_dmat, (void **)&sc->sgd_table, BUS_DMA_NOWAIT, &sc->sgd_dmamap) == -1) goto bad; if (bus_dmamap_load(sc->sgd_dmat, sc->sgd_dmamap, sc->sgd_table, sc->dma_segs * ATI_IXP_NCHANS * sizeof(struct atiixp_dma_op), atiixp_dma_cb, sc, 0)) goto bad; atiixp_chip_pre_init(sc); sc->delayed_attach.ich_func = atiixp_chip_post_init; sc->delayed_attach.ich_arg = sc; sc->delayed_attach.ich_desc = "snd_atiixp"; if (cold == 0 || config_intrhook_establish(&sc->delayed_attach) != 0) { sc->delayed_attach.ich_func = NULL; atiixp_chip_post_init(sc); } return 0; bad: atiixp_release_resource(sc); return ENXIO; }
static void sbc_lockinit(struct sbc_softc *scp) { scp->lock = snd_mtxcreate(device_get_nameunit(scp->dev), "snd_sbc softc"); }
static int via_attach(device_t dev) { struct via_info *via = NULL; char status[SND_STATUSLEN]; int i, via_dxs_disabled, via_dxs_src, via_dxs_chnum, via_sgd_chnum; uint32_t revid; via = kmalloc(sizeof *via, M_DEVBUF, M_WAITOK | M_ZERO); via->lock = snd_mtxcreate(device_get_nameunit(dev), "sound softc"); pci_set_powerstate(dev, PCI_POWERSTATE_D0); pci_enable_busmaster(dev); via->regid = PCIR_BAR(0); via->reg = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &via->regid, RF_ACTIVE); if (!via->reg) { device_printf(dev, "cannot allocate bus resource."); goto bad; } via->st = rman_get_bustag(via->reg); via->sh = rman_get_bushandle(via->reg); via->bufsz = pcm_getbuffersize(dev, 4096, VIA_DEFAULT_BUFSZ, 65536); via->irqid = 0; via->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &via->irqid, RF_ACTIVE | RF_SHAREABLE); if (!via->irq || snd_setup_intr(dev, via->irq, INTR_MPSAFE, via_intr, via, &via->ih)) { device_printf(dev, "unable to map interrupt\n"); goto bad; } /* DMA tag for buffers */ if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL, /*maxsize*/via->bufsz, /*nsegments*/1, /*maxsegz*/0x3ffff, /*flags*/0, &via->parent_dmat) != 0) { device_printf(dev, "unable to create dma tag\n"); goto bad; } /* * DMA tag for SGD table. The 686 uses scatter/gather DMA and * requires a list in memory of work to do. We need only 16 bytes * for this list, and it is wasteful to allocate 16K. */ if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL, /*maxsize*/NSEGS * sizeof(struct via_dma_op), /*nsegments*/1, /*maxsegz*/0x3ffff, /*flags*/0, &via->sgd_dmat) != 0) { device_printf(dev, "unable to create dma tag\n"); goto bad; } if (bus_dmamem_alloc(via->sgd_dmat, (void **)&via->sgd_table, BUS_DMA_NOWAIT, &via->sgd_dmamap) == -1) goto bad; if (bus_dmamap_load(via->sgd_dmat, via->sgd_dmamap, via->sgd_table, NSEGS * sizeof(struct via_dma_op), dma_cb, via, 0)) goto bad; if (via_chip_init(dev)) goto bad; via->codec = AC97_CREATE(dev, via, via_ac97); if (!via->codec) goto bad; mixer_init(dev, ac97_getmixerclass(), via->codec); via->codec_caps = ac97_getextcaps(via->codec); /* Try to set VRA without generating an error, VRM not reqrd yet */ if (via->codec_caps & (AC97_EXTCAP_VRA | AC97_EXTCAP_VRM | AC97_EXTCAP_DRA)) { u_int16_t ext = ac97_getextmode(via->codec); ext |= (via->codec_caps & (AC97_EXTCAP_VRA | AC97_EXTCAP_VRM)); ext &= ~AC97_EXTCAP_DRA; ac97_setextmode(via->codec, ext); } ksnprintf(status, SND_STATUSLEN, "at io 0x%lx irq %ld %s", rman_get_start(via->reg), rman_get_start(via->irq),PCM_KLDSTRING(snd_via8233)); revid = pci_get_revid(dev); /* * VIA8251 lost its interrupt after DMA EOL, and need * a gentle spank on its face within interrupt handler. */ if (revid == VIA8233_REV_ID_8251) via->dma_eol_wake = 1; else via->dma_eol_wake = 0; /* * Decide whether DXS had to be disabled or not */ if (revid == VIA8233_REV_ID_8233A) { /* * DXS channel is disabled. Reports from multiple users * that it plays at half-speed. Do not see this behaviour * on available 8233C or when emulating 8233A register set * on 8233C (either with or without ac97 VRA). */ via_dxs_disabled = 1; } else if (resource_int_value(device_get_name(dev), device_get_unit(dev), "via_dxs_disabled", &via_dxs_disabled) == 0) via_dxs_disabled = (via_dxs_disabled > 0) ? 1 : 0; else via_dxs_disabled = 0; if (via_dxs_disabled) { via_dxs_chnum = 0; via_sgd_chnum = 1; } else { if (resource_int_value(device_get_name(dev), device_get_unit(dev), "via_dxs_channels", &via_dxs_chnum) != 0) via_dxs_chnum = NDXSCHANS; if (resource_int_value(device_get_name(dev), device_get_unit(dev), "via_sgd_channels", &via_sgd_chnum) != 0) via_sgd_chnum = NMSGDCHANS; } if (via_dxs_chnum > NDXSCHANS) via_dxs_chnum = NDXSCHANS; else if (via_dxs_chnum < 0) via_dxs_chnum = 0; if (via_sgd_chnum > NMSGDCHANS) via_sgd_chnum = NMSGDCHANS; else if (via_sgd_chnum < 0) via_sgd_chnum = 0; if (via_dxs_chnum + via_sgd_chnum < 1) { /* Minimalist ? */ via_dxs_chnum = 1; via_sgd_chnum = 0; } if (via_dxs_chnum > 0 && resource_int_value(device_get_name(dev), device_get_unit(dev), "via_dxs_src", &via_dxs_src) == 0) via->dxs_src = (via_dxs_src > 0) ? 1 : 0; else via->dxs_src = 0; /* Register */ if (pcm_register(dev, via, via_dxs_chnum + via_sgd_chnum, NWRCHANS)) goto bad; for (i = 0; i < via_dxs_chnum; i++) pcm_addchan(dev, PCMDIR_PLAY, &via8233dxs_class, via); for (i = 0; i < via_sgd_chnum; i++) pcm_addchan(dev, PCMDIR_PLAY, &via8233msgd_class, via); for (i = 0; i < NWRCHANS; i++) pcm_addchan(dev, PCMDIR_REC, &via8233wr_class, via); if (via_dxs_chnum > 0) via_init_sysctls(dev); device_printf(dev, "<VIA DXS %sabled: DXS%s %d / SGD %d / REC %d>\n", (via_dxs_chnum > 0) ? "En" : "Dis", (via->dxs_src) ? "(SRC)" : "", via_dxs_chnum, via_sgd_chnum, NWRCHANS); pcm_setstatus(dev, status); return 0; bad: if (via->codec) ac97_destroy(via->codec); if (via->reg) bus_release_resource(dev, SYS_RES_IOPORT, via->regid, via->reg); if (via->ih) bus_teardown_intr(dev, via->irq, via->ih); if (via->irq) bus_release_resource(dev, SYS_RES_IRQ, via->irqid, via->irq); if (via->parent_dmat) bus_dma_tag_destroy(via->parent_dmat); if (via->sgd_dmamap) bus_dmamap_unload(via->sgd_dmat, via->sgd_dmamap); if (via->sgd_table) bus_dmamem_free(via->sgd_dmat, via->sgd_table, via->sgd_dmamap); if (via->sgd_dmat) bus_dma_tag_destroy(via->sgd_dmat); if (via->lock) snd_mtxfree(via->lock); if (via) kfree(via, M_DEVBUF); return ENXIO; }
static int via_attach(device_t dev) { struct via_info *via = 0; char status[SND_STATUSLEN]; u_int32_t data, cnt; via = kmalloc(sizeof *via, M_DEVBUF, M_WAITOK | M_ZERO); via->lock = snd_mtxcreate(device_get_nameunit(dev), "sound softc"); /* Get resources */ data = pci_read_config(dev, PCIR_COMMAND, 2); data |= (PCIM_CMD_PORTEN | PCIM_CMD_BUSMASTEREN); pci_write_config(dev, PCIR_COMMAND, data, 2); data = pci_read_config(dev, PCIR_COMMAND, 2); /* Wake up and reset AC97 if necessary */ data = pci_read_config(dev, VIA_AC97STATUS, 1); if ((data & VIA_AC97STATUS_RDY) == 0) { /* Cold reset per ac97r2.3 spec (page 95) */ pci_write_config(dev, VIA_ACLINKCTRL, VIA_ACLINK_EN, 1); /* Assert low */ DELAY(100); /* Wait T_rst_low */ pci_write_config(dev, VIA_ACLINKCTRL, VIA_ACLINK_EN | VIA_ACLINK_NRST, 1); /* Assert high */ DELAY(5); /* Wait T_rst2clk */ pci_write_config(dev, VIA_ACLINKCTRL, VIA_ACLINK_EN, 1); /* Assert low */ } else { /* Warm reset */ pci_write_config(dev, VIA_ACLINKCTRL, VIA_ACLINK_EN, 1); /* Force no sync */ DELAY(100); pci_write_config(dev, VIA_ACLINKCTRL, VIA_ACLINK_EN | VIA_ACLINK_SYNC, 1); /* Sync */ DELAY(5); /* Wait T_sync_high */ pci_write_config(dev, VIA_ACLINKCTRL, VIA_ACLINK_EN, 1); /* Force no sync */ DELAY(5); /* Wait T_sync2clk */ } /* Power everything up */ pci_write_config(dev, VIA_ACLINKCTRL, VIA_ACLINK_DESIRED, 1); /* Wait for codec to become ready (largest reported delay here 310ms) */ for (cnt = 0; cnt < 2000; cnt++) { data = pci_read_config(dev, VIA_AC97STATUS, 1); if (data & VIA_AC97STATUS_RDY) break; DELAY(5000); } via->regid = PCIR_BAR(0); via->reg = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &via->regid, RF_ACTIVE); if (!via->reg) { device_printf(dev, "cannot allocate bus resource."); goto bad; } via->st = rman_get_bustag(via->reg); via->sh = rman_get_bushandle(via->reg); via->bufsz = pcm_getbuffersize(dev, 4096, VIA_DEFAULT_BUFSZ, 65536); via->irqid = 0; via->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &via->irqid, RF_ACTIVE | RF_SHAREABLE); if (!via->irq || snd_setup_intr(dev, via->irq, INTR_MPSAFE, via_intr, via, &via->ih)) { device_printf(dev, "unable to map interrupt\n"); goto bad; } via_wr(via, VIA_PLAY_MODE, VIA_RPMODE_AUTOSTART | VIA_RPMODE_INTR_FLAG | VIA_RPMODE_INTR_EOL, 1); via_wr(via, VIA_RECORD_MODE, VIA_RPMODE_AUTOSTART | VIA_RPMODE_INTR_FLAG | VIA_RPMODE_INTR_EOL, 1); via->codec = AC97_CREATE(dev, via, via_ac97); if (!via->codec) goto bad; if (mixer_init(dev, ac97_getmixerclass(), via->codec)) goto bad; via->codec_caps = ac97_getextcaps(via->codec); ac97_setextmode(via->codec, via->codec_caps & (AC97_EXTCAP_VRA | AC97_EXTCAP_VRM)); /* DMA tag for buffers */ if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL, /*maxsize*/via->bufsz, /*nsegments*/1, /*maxsegz*/0x3ffff, /*flags*/0, &via->parent_dmat) != 0) { device_printf(dev, "unable to create dma tag\n"); goto bad; } /* * DMA tag for SGD table. The 686 uses scatter/gather DMA and * requires a list in memory of work to do. We need only 16 bytes * for this list, and it is wasteful to allocate 16K. */ if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL, /*maxsize*/NSEGS * sizeof(struct via_dma_op), /*nsegments*/1, /*maxsegz*/0x3ffff, /*flags*/0, &via->sgd_dmat) != 0) { device_printf(dev, "unable to create dma tag\n"); goto bad; } if (bus_dmamem_alloc(via->sgd_dmat, (void **)&via->sgd_table, BUS_DMA_NOWAIT, &via->sgd_dmamap) != 0) goto bad; if (bus_dmamap_load(via->sgd_dmat, via->sgd_dmamap, via->sgd_table, NSEGS * sizeof(struct via_dma_op), dma_cb, via, 0) != 0) goto bad; ksnprintf(status, SND_STATUSLEN, "at io 0x%lx irq %ld %s", rman_get_start(via->reg), rman_get_start(via->irq), PCM_KLDSTRING(snd_via82c686)); /* Register */ if (pcm_register(dev, via, 1, 1)) goto bad; pcm_addchan(dev, PCMDIR_PLAY, &viachan_class, via); pcm_addchan(dev, PCMDIR_REC, &viachan_class, via); pcm_setstatus(dev, status); return 0; bad: if (via->codec) ac97_destroy(via->codec); if (via->reg) bus_release_resource(dev, SYS_RES_IOPORT, via->regid, via->reg); if (via->ih) bus_teardown_intr(dev, via->irq, via->ih); if (via->irq) bus_release_resource(dev, SYS_RES_IRQ, via->irqid, via->irq); if (via->parent_dmat) bus_dma_tag_destroy(via->parent_dmat); if (via->sgd_dmamap) bus_dmamap_unload(via->sgd_dmat, via->sgd_dmamap); if (via->sgd_table) bus_dmamem_free(via->sgd_dmat, via->sgd_table, via->sgd_dmamap); if (via->sgd_dmat) bus_dma_tag_destroy(via->sgd_dmat); if (via->lock) snd_mtxfree(via->lock); if (via) kfree(via, M_DEVBUF); return ENXIO; }