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; }