/* * ALSA driver for the Aureal Vortex family of soundprocessors. * Author: Manuel Jander (mjander@embedded.cl) * * This driver is the result of the OpenVortex Project from Savannah * (savannah.nongnu.org/projects/openvortex). I would like to thank * the developers of OpenVortex, Jeff Muizelaar and Kester Maddock, from * whom i got plenty of help, and their codebase was invaluable. * Thanks to the ALSA developers, they helped a lot working out * the ALSA part. * Thanks also to Sourceforge for maintaining the old binary drivers, * and the forum, where developers could comunicate. * * Now at least i can play Legacy DOOM with MIDI music :-) */ #include "au88x0.h" #include <linux/init.h> #include <linux/pci.h> #include <linux/slab.h> #include <linux/interrupt.h> #include <linux/module.h> #include <linux/dma-mapping.h> #include <sound/initval.h> // module parameters (see "Module Parameters") static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; static int pcifix[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 255 }; module_param_array(index, int, NULL, 0444); MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard."); module_param_array(id, charp, NULL, 0444); MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard."); module_param_array(enable, bool, NULL, 0444); MODULE_PARM_DESC(enable, "Enable " CARD_NAME " soundcard."); module_param_array(pcifix, int, NULL, 0444); MODULE_PARM_DESC(pcifix, "Enable VIA-workaround for " CARD_NAME " soundcard."); MODULE_DESCRIPTION("Aureal vortex"); MODULE_LICENSE("GPL"); MODULE_SUPPORTED_DEVICE("{{Aureal Semiconductor Inc., Aureal Vortex Sound Processor}}"); MODULE_DEVICE_TABLE(pci, snd_vortex_ids); static void vortex_fix_latency(struct pci_dev *vortex) { int rc; if (!(rc = pci_write_config_byte(vortex, 0x40, 0xff))) { printk(KERN_INFO CARD_NAME ": vortex latency is 0xff\n"); } else { printk(KERN_WARNING CARD_NAME ": could not set vortex latency: pci error 0x%x\n", rc); } } static void vortex_fix_agp_bridge(struct pci_dev *via) { int rc; u8 value; /* * only set the bit (Extend PCI#2 Internal Master for * Efficient Handling of Dummy Requests) if the can * read the config and it is not already set */ if (!(rc = pci_read_config_byte(via, 0x42, &value)) && ((value & 0x10) || !(rc = pci_write_config_byte(via, 0x42, value | 0x10)))) { printk(KERN_INFO CARD_NAME ": bridge config is 0x%x\n", value | 0x10); } else { printk(KERN_WARNING CARD_NAME ": could not set vortex latency: pci error 0x%x\n", rc); } } static void snd_vortex_workaround(struct pci_dev *vortex, int fix) { struct pci_dev *via = NULL; /* autodetect if workarounds are required */ if (fix == 255) { /* VIA KT133 */ via = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8365_1, NULL); /* VIA Apollo */ if (via == NULL) { via = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C598_1, NULL); /* AMD Irongate */ if (via == NULL) via = pci_get_device(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_7007, NULL); } if (via) { printk(KERN_INFO CARD_NAME ": Activating latency workaround...\n"); vortex_fix_latency(vortex); vortex_fix_agp_bridge(via); } } else { if (fix & 0x1) vortex_fix_latency(vortex); if ((fix & 0x2) && (via = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8365_1, NULL))) vortex_fix_agp_bridge(via); if ((fix & 0x4) && (via = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C598_1, NULL))) vortex_fix_agp_bridge(via); if ((fix & 0x8) && (via = pci_get_device(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_7007, NULL))) vortex_fix_agp_bridge(via); } pci_dev_put(via); } // component-destructor // (see "Management of Cards and Components") static int snd_vortex_dev_free(struct snd_device *device) { vortex_t *vortex = device->device_data; vortex_gameport_unregister(vortex); vortex_core_shutdown(vortex); // Take down PCI interface. free_irq(vortex->irq, vortex); iounmap(vortex->mmio); pci_release_regions(vortex->pci_dev); pci_disable_device(vortex->pci_dev); kfree(vortex); return 0; } // chip-specific constructor // (see "Management of Cards and Components") static int snd_vortex_create(struct snd_card *card, struct pci_dev *pci, vortex_t ** rchip) { vortex_t *chip; int err; static struct snd_device_ops ops = { .dev_free = snd_vortex_dev_free, }; *rchip = NULL; // check PCI availability (DMA). if ((err = pci_enable_device(pci)) < 0) return err; if (pci_set_dma_mask(pci, DMA_BIT_MASK(32)) < 0 || pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(32)) < 0) { printk(KERN_ERR "error to set DMA mask\n"); pci_disable_device(pci); return -ENXIO; } chip = kzalloc(sizeof(*chip), GFP_KERNEL); if (chip == NULL) { pci_disable_device(pci); return -ENOMEM; } chip->card = card; // initialize the stuff chip->pci_dev = pci; chip->io = pci_resource_start(pci, 0); chip->vendor = pci->vendor; chip->device = pci->device; chip->card = card; chip->irq = -1; // (1) PCI resource allocation // Get MMIO area // if ((err = pci_request_regions(pci, CARD_NAME_SHORT)) != 0) goto regions_out; chip->mmio = pci_ioremap_bar(pci, 0); if (!chip->mmio) { printk(KERN_ERR "MMIO area remap failed.\n"); err = -ENOMEM; goto ioremap_out; } /* Init audio core. * This must be done before we do request_irq otherwise we can get spurious * interrupts that we do not handle properly and make a mess of things */ if ((err = vortex_core_init(chip)) != 0) { printk(KERN_ERR "hw core init failed\n"); goto core_out; } if ((err = request_irq(pci->irq, vortex_interrupt, IRQF_SHARED, KBUILD_MODNAME, chip)) != 0) { printk(KERN_ERR "cannot grab irq\n"); goto irq_out; } chip->irq = pci->irq; pci_set_master(pci); // End of PCI setup. // Register alsa root device. if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) { goto alloc_out; } snd_card_set_dev(card, &pci->dev); *rchip = chip; return 0; alloc_out: free_irq(chip->irq, chip); irq_out: vortex_core_shutdown(chip); core_out: iounmap(chip->mmio); ioremap_out: pci_release_regions(chip->pci_dev); regions_out: pci_disable_device(chip->pci_dev); //FIXME: this not the right place to unregister the gameport vortex_gameport_unregister(chip); kfree(chip); return err; } // constructor -- see "Constructor" sub-section static int snd_vortex_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) { static int dev; struct snd_card *card; vortex_t *chip; int err; // (1) if (dev >= SNDRV_CARDS) return -ENODEV; if (!enable[dev]) { dev++; return -ENOENT; } // (2) err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card); if (err < 0) return err; // (3) if ((err = snd_vortex_create(card, pci, &chip)) < 0) { snd_card_free(card); return err; } snd_vortex_workaround(pci, pcifix[dev]); // Card details needed in snd_vortex_midi strcpy(card->driver, CARD_NAME_SHORT); sprintf(card->shortname, "Aureal Vortex %s", CARD_NAME_SHORT); sprintf(card->longname, "%s at 0x%lx irq %i", card->shortname, chip->io, chip->irq); // (4) Alloc components. err = snd_vortex_mixer(chip); if (err < 0) { snd_card_free(card); return err; } // ADB pcm. err = snd_vortex_new_pcm(chip, VORTEX_PCM_ADB, NR_PCM); if (err < 0) { snd_card_free(card); return err; } #ifndef CHIP_AU8820 // ADB SPDIF if ((err = snd_vortex_new_pcm(chip, VORTEX_PCM_SPDIF, 1)) < 0) { snd_card_free(card); return err; } // A3D if ((err = snd_vortex_new_pcm(chip, VORTEX_PCM_A3D, NR_A3D)) < 0) { snd_card_free(card); return err; } #endif /* // ADB I2S if ((err = snd_vortex_new_pcm(chip, VORTEX_PCM_I2S, 1)) < 0) { snd_card_free(card); return err; } */ #ifndef CHIP_AU8810 // WT pcm. if ((err = snd_vortex_new_pcm(chip, VORTEX_PCM_WT, NR_WT)) < 0) { snd_card_free(card); return err; } #endif if ((err = snd_vortex_midi(chip)) < 0) { snd_card_free(card); return err; } vortex_gameport_register(chip); #if 0 if (snd_seq_device_new(card, 1, SNDRV_SEQ_DEV_ID_VORTEX_SYNTH, sizeof(snd_vortex_synth_arg_t), &wave) < 0 || wave == NULL) { snd_printk(KERN_ERR "Can't initialize Aureal wavetable synth\n"); } else { snd_vortex_synth_arg_t *arg; arg = SNDRV_SEQ_DEVICE_ARGPTR(wave); strcpy(wave->name, "Aureal Synth"); arg->hwptr = vortex; arg->index = 1; arg->seq_ports = seq_ports[dev]; arg->max_voices = max_synth_voices[dev]; } #endif // (5) if ((err = pci_read_config_word(pci, PCI_DEVICE_ID, &(chip->device))) < 0) { snd_card_free(card); return err; } if ((err = pci_read_config_word(pci, PCI_VENDOR_ID, &(chip->vendor))) < 0) { snd_card_free(card); return err; } chip->rev = pci->revision; #ifdef CHIP_AU8830 if ((chip->rev) != 0xfe && (chip->rev) != 0xfa) { printk(KERN_ALERT "vortex: The revision (%x) of your card has not been seen before.\n", chip->rev); printk(KERN_ALERT "vortex: Please email the results of 'lspci -vv' to openvortex-dev@nongnu.org.\n"); snd_card_free(card); err = -ENODEV; return err; } #endif // (6) if ((err = snd_card_register(card)) < 0) { snd_card_free(card); return err; } // (7) pci_set_drvdata(pci, card); dev++; vortex_connect_default(chip, 1); vortex_enable_int(chip); return 0; } // destructor -- see "Destructor" sub-section static void snd_vortex_remove(struct pci_dev *pci) { snd_card_free(pci_get_drvdata(pci)); } // pci_driver definition static struct pci_driver vortex_driver = { .name = KBUILD_MODNAME, .id_table = snd_vortex_ids, .probe = snd_vortex_probe, .remove = snd_vortex_remove, }; module_pci_driver(vortex_driver);