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- // SPDX-License-Identifier: GPL-2.0-only
- /*
- * ALSA driver for the Aureal Vortex family of soundprocessors.
- * Author: Manuel Jander ([email protected])
- *
- * 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_DEVICE_TABLE(pci, snd_vortex_ids);
- static void vortex_fix_latency(struct pci_dev *vortex)
- {
- int rc;
- rc = pci_write_config_byte(vortex, 0x40, 0xff);
- if (!rc) {
- dev_info(&vortex->dev, "vortex latency is 0xff\n");
- } else {
- dev_warn(&vortex->dev,
- "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
- */
- rc = pci_read_config_byte(via, 0x42, &value);
- if (!rc) {
- if (!(value & 0x10))
- rc = pci_write_config_byte(via, 0x42, value | 0x10);
- }
- if (!rc) {
- dev_info(&via->dev, "bridge config is 0x%x\n", value | 0x10);
- } else {
- dev_warn(&via->dev,
- "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) {
- dev_info(&vortex->dev,
- "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);
- else if (fix & 0x4)
- via = pci_get_device(PCI_VENDOR_ID_VIA,
- PCI_DEVICE_ID_VIA_82C598_1, NULL);
- else if (fix & 0x8)
- via = pci_get_device(PCI_VENDOR_ID_AMD,
- PCI_DEVICE_ID_AMD_FE_GATE_7007, NULL);
- if (via)
- vortex_fix_agp_bridge(via);
- }
- pci_dev_put(via);
- }
- // component-destructor
- // (see "Management of Cards and Components")
- static void snd_vortex_free(struct snd_card *card)
- {
- vortex_t *vortex = card->private_data;
- vortex_gameport_unregister(vortex);
- vortex_core_shutdown(vortex);
- }
- // chip-specific constructor
- // (see "Management of Cards and Components")
- static int
- snd_vortex_create(struct snd_card *card, struct pci_dev *pci)
- {
- vortex_t *chip = card->private_data;
- int err;
- // check PCI availability (DMA).
- err = pcim_enable_device(pci);
- if (err < 0)
- return err;
- if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(32))) {
- dev_err(card->dev, "error to set DMA mask\n");
- return -ENXIO;
- }
- chip->card = card;
- // initialize the stuff
- chip->pci_dev = pci;
- chip->vendor = pci->vendor;
- chip->device = pci->device;
- chip->card = card;
- chip->irq = -1;
- // (1) PCI resource allocation
- // Get MMIO area
- //
- err = pcim_iomap_regions(pci, 1 << 0, CARD_NAME_SHORT);
- if (err)
- return err;
- chip->io = pci_resource_start(pci, 0);
- chip->mmio = pcim_iomap_table(pci)[0];
- /* 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 */
- err = vortex_core_init(chip);
- if (err) {
- dev_err(card->dev, "hw core init failed\n");
- return err;
- }
- err = devm_request_irq(&pci->dev, pci->irq, vortex_interrupt,
- IRQF_SHARED, KBUILD_MODNAME, chip);
- if (err) {
- dev_err(card->dev, "cannot grab irq\n");
- return err;
- }
- chip->irq = pci->irq;
- card->sync_irq = chip->irq;
- card->private_free = snd_vortex_free;
- pci_set_master(pci);
- // End of PCI setup.
- return 0;
- }
- // 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_devm_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
- sizeof(*chip), &card);
- if (err < 0)
- return err;
- chip = card->private_data;
- // (3)
- err = snd_vortex_create(card, pci);
- if (err < 0)
- 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)
- return err;
- // ADB pcm.
- err = snd_vortex_new_pcm(chip, VORTEX_PCM_ADB, NR_PCM);
- if (err < 0)
- return err;
- #ifndef CHIP_AU8820
- // ADB SPDIF
- err = snd_vortex_new_pcm(chip, VORTEX_PCM_SPDIF, 1);
- if (err < 0)
- return err;
- // A3D
- err = snd_vortex_new_pcm(chip, VORTEX_PCM_A3D, NR_A3D);
- if (err < 0)
- return err;
- #endif
- /*
- // ADB I2S
- if ((err = snd_vortex_new_pcm(chip, VORTEX_PCM_I2S, 1)) < 0) {
- return err;
- }
- */
- #ifndef CHIP_AU8810
- // WT pcm.
- err = snd_vortex_new_pcm(chip, VORTEX_PCM_WT, NR_WT);
- if (err < 0)
- return err;
- #endif
- err = snd_vortex_midi(chip);
- if (err < 0)
- 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) {
- dev_err(card->dev, "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)
- err = pci_read_config_word(pci, PCI_DEVICE_ID, &chip->device);
- if (err < 0)
- return err;
- err = pci_read_config_word(pci, PCI_VENDOR_ID, &chip->vendor);
- if (err < 0)
- return err;
- chip->rev = pci->revision;
- #ifdef CHIP_AU8830
- if ((chip->rev) != 0xfe && (chip->rev) != 0xfa) {
- dev_alert(card->dev,
- "The revision (%x) of your card has not been seen before.\n",
- chip->rev);
- dev_alert(card->dev,
- "Please email the results of 'lspci -vv' to [email protected].\n");
- return -ENODEV;
- }
- #endif
- // (6)
- err = snd_card_register(card);
- if (err < 0)
- return err;
- // (7)
- pci_set_drvdata(pci, card);
- dev++;
- vortex_connect_default(chip, 1);
- vortex_enable_int(chip);
- return 0;
- }
- static int
- snd_vortex_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
- {
- return snd_card_free_on_error(&pci->dev, __snd_vortex_probe(pci, pci_id));
- }
- // pci_driver definition
- static struct pci_driver vortex_driver = {
- .name = KBUILD_MODNAME,
- .id_table = snd_vortex_ids,
- .probe = snd_vortex_probe,
- };
- module_pci_driver(vortex_driver);
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