1 // SPDX-License-Identifier: GPL-2.0-only
3 * ALSA driver for the Aureal Vortex family of soundprocessors.
4 * Author: Manuel Jander (mjander@embedded.cl)
6 * This driver is the result of the OpenVortex Project from Savannah
7 * (savannah.nongnu.org/projects/openvortex). I would like to thank
8 * the developers of OpenVortex, Jeff Muizelaar and Kester Maddock, from
9 * whom i got plenty of help, and their codebase was invaluable.
10 * Thanks to the ALSA developers, they helped a lot working out
12 * Thanks also to Sourceforge for maintaining the old binary drivers,
13 * and the forum, where developers could comunicate.
15 * Now at least i can play Legacy DOOM with MIDI music :-)
19 #include <linux/init.h>
20 #include <linux/pci.h>
21 #include <linux/slab.h>
22 #include <linux/interrupt.h>
23 #include <linux/module.h>
24 #include <linux/dma-mapping.h>
25 #include <sound/initval.h>
27 // module parameters (see "Module Parameters")
28 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
29 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
30 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
31 static int pcifix[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 255 };
33 module_param_array(index, int, NULL, 0444);
34 MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard.");
35 module_param_array(id, charp, NULL, 0444);
36 MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard.");
37 module_param_array(enable, bool, NULL, 0444);
38 MODULE_PARM_DESC(enable, "Enable " CARD_NAME " soundcard.");
39 module_param_array(pcifix, int, NULL, 0444);
40 MODULE_PARM_DESC(pcifix, "Enable VIA-workaround for " CARD_NAME " soundcard.");
42 MODULE_DESCRIPTION("Aureal vortex");
43 MODULE_LICENSE("GPL");
44 MODULE_DEVICE_TABLE(pci, snd_vortex_ids);
46 static void vortex_fix_latency(struct pci_dev *vortex)
49 rc = pci_write_config_byte(vortex, 0x40, 0xff);
51 dev_info(&vortex->dev, "vortex latency is 0xff\n");
53 dev_warn(&vortex->dev,
54 "could not set vortex latency: pci error 0x%x\n", rc);
58 static void vortex_fix_agp_bridge(struct pci_dev *via)
64 * only set the bit (Extend PCI#2 Internal Master for
65 * Efficient Handling of Dummy Requests) if the can
66 * read the config and it is not already set
69 rc = pci_read_config_byte(via, 0x42, &value);
72 rc = pci_write_config_byte(via, 0x42, value | 0x10);
75 dev_info(&via->dev, "bridge config is 0x%x\n", value | 0x10);
78 "could not set vortex latency: pci error 0x%x\n", rc);
82 static void snd_vortex_workaround(struct pci_dev *vortex, int fix)
84 struct pci_dev *via = NULL;
86 /* autodetect if workarounds are required */
89 via = pci_get_device(PCI_VENDOR_ID_VIA,
90 PCI_DEVICE_ID_VIA_8365_1, NULL);
93 via = pci_get_device(PCI_VENDOR_ID_VIA,
94 PCI_DEVICE_ID_VIA_82C598_1, NULL);
97 via = pci_get_device(PCI_VENDOR_ID_AMD,
98 PCI_DEVICE_ID_AMD_FE_GATE_7007, NULL);
101 dev_info(&vortex->dev,
102 "Activating latency workaround...\n");
103 vortex_fix_latency(vortex);
104 vortex_fix_agp_bridge(via);
108 vortex_fix_latency(vortex);
110 via = pci_get_device(PCI_VENDOR_ID_VIA,
111 PCI_DEVICE_ID_VIA_8365_1, NULL);
113 via = pci_get_device(PCI_VENDOR_ID_VIA,
114 PCI_DEVICE_ID_VIA_82C598_1, NULL);
116 via = pci_get_device(PCI_VENDOR_ID_AMD,
117 PCI_DEVICE_ID_AMD_FE_GATE_7007, NULL);
119 vortex_fix_agp_bridge(via);
124 // component-destructor
125 // (see "Management of Cards and Components")
126 static int snd_vortex_dev_free(struct snd_device *device)
128 vortex_t *vortex = device->device_data;
130 vortex_gameport_unregister(vortex);
131 vortex_core_shutdown(vortex);
132 // Take down PCI interface.
133 free_irq(vortex->irq, vortex);
134 iounmap(vortex->mmio);
135 pci_release_regions(vortex->pci_dev);
136 pci_disable_device(vortex->pci_dev);
142 // chip-specific constructor
143 // (see "Management of Cards and Components")
145 snd_vortex_create(struct snd_card *card, struct pci_dev *pci, vortex_t ** rchip)
149 static const struct snd_device_ops ops = {
150 .dev_free = snd_vortex_dev_free,
155 // check PCI availability (DMA).
156 err = pci_enable_device(pci);
159 if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(32))) {
160 dev_err(card->dev, "error to set DMA mask\n");
161 pci_disable_device(pci);
165 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
167 pci_disable_device(pci);
173 // initialize the stuff
175 chip->io = pci_resource_start(pci, 0);
176 chip->vendor = pci->vendor;
177 chip->device = pci->device;
181 // (1) PCI resource allocation
184 err = pci_request_regions(pci, CARD_NAME_SHORT);
188 chip->mmio = pci_ioremap_bar(pci, 0);
190 dev_err(card->dev, "MMIO area remap failed.\n");
196 * This must be done before we do request_irq otherwise we can get spurious
197 * interrupts that we do not handle properly and make a mess of things */
198 err = vortex_core_init(chip);
200 dev_err(card->dev, "hw core init failed\n");
204 err = request_irq(pci->irq, vortex_interrupt,
205 IRQF_SHARED, KBUILD_MODNAME, chip);
207 dev_err(card->dev, "cannot grab irq\n");
210 chip->irq = pci->irq;
211 card->sync_irq = chip->irq;
216 // Register alsa root device.
217 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
226 free_irq(chip->irq, chip);
228 vortex_core_shutdown(chip);
232 pci_release_regions(chip->pci_dev);
234 pci_disable_device(chip->pci_dev);
235 //FIXME: this not the right place to unregister the gameport
236 vortex_gameport_unregister(chip);
241 // constructor -- see "Constructor" sub-section
243 snd_vortex_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
246 struct snd_card *card;
251 if (dev >= SNDRV_CARDS)
258 err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
264 err = snd_vortex_create(card, pci, &chip);
269 snd_vortex_workaround(pci, pcifix[dev]);
271 // Card details needed in snd_vortex_midi
272 strcpy(card->driver, CARD_NAME_SHORT);
273 sprintf(card->shortname, "Aureal Vortex %s", CARD_NAME_SHORT);
274 sprintf(card->longname, "%s at 0x%lx irq %i",
275 card->shortname, chip->io, chip->irq);
277 // (4) Alloc components.
278 err = snd_vortex_mixer(chip);
284 err = snd_vortex_new_pcm(chip, VORTEX_PCM_ADB, NR_PCM);
291 err = snd_vortex_new_pcm(chip, VORTEX_PCM_SPDIF, 1);
297 err = snd_vortex_new_pcm(chip, VORTEX_PCM_A3D, NR_A3D);
305 if ((err = snd_vortex_new_pcm(chip, VORTEX_PCM_I2S, 1)) < 0) {
312 err = snd_vortex_new_pcm(chip, VORTEX_PCM_WT, NR_WT);
318 err = snd_vortex_midi(chip);
324 vortex_gameport_register(chip);
327 if (snd_seq_device_new(card, 1, SNDRV_SEQ_DEV_ID_VORTEX_SYNTH,
328 sizeof(snd_vortex_synth_arg_t), &wave) < 0
330 dev_err(card->dev, "Can't initialize Aureal wavetable synth\n");
332 snd_vortex_synth_arg_t *arg;
334 arg = SNDRV_SEQ_DEVICE_ARGPTR(wave);
335 strcpy(wave->name, "Aureal Synth");
338 arg->seq_ports = seq_ports[dev];
339 arg->max_voices = max_synth_voices[dev];
344 err = pci_read_config_word(pci, PCI_DEVICE_ID, &chip->device);
349 err = pci_read_config_word(pci, PCI_VENDOR_ID, &chip->vendor);
354 chip->rev = pci->revision;
356 if ((chip->rev) != 0xfe && (chip->rev) != 0xfa) {
358 "The revision (%x) of your card has not been seen before.\n",
361 "Please email the results of 'lspci -vv' to openvortex-dev@nongnu.org.\n");
369 err = snd_card_register(card);
375 pci_set_drvdata(pci, card);
377 vortex_connect_default(chip, 1);
378 vortex_enable_int(chip);
382 // destructor -- see "Destructor" sub-section
383 static void snd_vortex_remove(struct pci_dev *pci)
385 snd_card_free(pci_get_drvdata(pci));
388 // pci_driver definition
389 static struct pci_driver vortex_driver = {
390 .name = KBUILD_MODNAME,
391 .id_table = snd_vortex_ids,
392 .probe = snd_vortex_probe,
393 .remove = snd_vortex_remove,
396 module_pci_driver(vortex_driver);