2 * ALSA driver for the Aureal Vortex family of soundprocessors.
3 * Author: Manuel Jander (mjander@embedded.cl)
5 * This driver is the result of the OpenVortex Project from Savannah
6 * (savannah.nongnu.org/projects/openvortex). I would like to thank
7 * the developers of OpenVortex, Jeff Muizelaar and Kester Maddock, from
8 * whom i got plenty of help, and their codebase was invaluable.
9 * Thanks to the ALSA developers, they helped a lot working out
11 * Thanks also to Sourceforge for maintaining the old binary drivers,
12 * and the forum, where developers could comunicate.
14 * Now at least i can play Legacy DOOM with MIDI music :-)
18 #include <linux/init.h>
19 #include <linux/pci.h>
20 #include <linux/slab.h>
21 #include <linux/interrupt.h>
22 #include <linux/moduleparam.h>
23 #include <sound/initval.h>
25 // module parameters (see "Module Parameters")
26 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
27 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
28 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
29 static int pcifix[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 255 };
31 module_param_array(index, int, NULL, 0444);
32 MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard.");
33 module_param_array(id, charp, NULL, 0444);
34 MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard.");
35 module_param_array(enable, bool, NULL, 0444);
36 MODULE_PARM_DESC(enable, "Enable " CARD_NAME " soundcard.");
37 module_param_array(pcifix, int, NULL, 0444);
38 MODULE_PARM_DESC(pcifix, "Enable VIA-workaround for " CARD_NAME " soundcard.");
40 MODULE_DESCRIPTION("Aureal vortex");
41 MODULE_LICENSE("GPL");
42 MODULE_SUPPORTED_DEVICE("{{Aureal Semiconductor Inc., Aureal Vortex Sound Processor}}");
44 MODULE_DEVICE_TABLE(pci, snd_vortex_ids);
46 static void vortex_fix_latency(struct pci_dev *vortex)
49 if (!(rc = pci_write_config_byte(vortex, 0x40, 0xff))) {
50 printk(KERN_INFO CARD_NAME
51 ": vortex latency is 0xff\n");
53 printk(KERN_WARNING CARD_NAME
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 if (!(rc = pci_read_config_byte(via, 0x42, &value))
71 || !(rc = pci_write_config_byte(via, 0x42, value | 0x10)))) {
72 printk(KERN_INFO CARD_NAME
73 ": bridge config is 0x%x\n", value | 0x10);
75 printk(KERN_WARNING CARD_NAME
76 ": could not set vortex latency: pci error 0x%x\n", rc);
80 static void __devinit snd_vortex_workaround(struct pci_dev *vortex, int fix)
84 /* autodetect if workarounds are required */
87 via = pci_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8365_1, NULL);
90 via = pci_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C598_1, NULL);
94 via = pci_find_device(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_7007, NULL);
97 printk(KERN_INFO CARD_NAME ": Activating latency workaround...\n");
98 vortex_fix_latency(vortex);
99 vortex_fix_agp_bridge(via);
103 vortex_fix_latency(vortex);
104 if ((fix & 0x2) && (via = pci_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8365_1, NULL)))
105 vortex_fix_agp_bridge(via);
106 if ((fix & 0x4) && (via = pci_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C598_1, NULL)))
107 vortex_fix_agp_bridge(via);
108 if ((fix & 0x8) && (via = pci_find_device(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_7007, NULL)))
109 vortex_fix_agp_bridge(via);
113 // component-destructor
114 // (see "Management of Cards and Components")
115 static int snd_vortex_dev_free(snd_device_t * device)
117 vortex_t *vortex = device->device_data;
119 vortex_gameport_unregister(vortex);
120 vortex_core_shutdown(vortex);
121 // Take down PCI interface.
122 synchronize_irq(vortex->irq);
123 free_irq(vortex->irq, vortex);
124 pci_release_regions(vortex->pci_dev);
125 pci_disable_device(vortex->pci_dev);
131 // chip-specific constructor
132 // (see "Management of Cards and Components")
134 snd_vortex_create(snd_card_t * card, struct pci_dev *pci, vortex_t ** rchip)
138 static snd_device_ops_t ops = {
139 .dev_free = snd_vortex_dev_free,
144 // check PCI availability (DMA).
145 if ((err = pci_enable_device(pci)) < 0)
147 if (!pci_dma_supported(pci, VORTEX_DMA_MASK)) {
148 printk(KERN_ERR "error to set DMA mask\n");
151 pci_set_dma_mask(pci, VORTEX_DMA_MASK);
153 chip = kcalloc(1, sizeof(*chip), GFP_KERNEL);
159 // initialize the stuff
161 chip->io = pci_resource_start(pci, 0);
162 chip->vendor = pci->vendor;
163 chip->device = pci->device;
167 // (1) PCI resource allocation
170 if ((err = pci_request_regions(pci, CARD_NAME_SHORT)) != 0)
173 chip->mmio = ioremap_nocache(pci_resource_start(pci, 0),
174 pci_resource_len(pci, 0));
176 printk(KERN_ERR "MMIO area remap failed.\n");
182 * This must be done before we do request_irq otherwise we can get spurious
183 * interupts that we do not handle properly and make a mess of things */
184 if ((err = vortex_core_init(chip)) != 0) {
185 printk(KERN_ERR "hw core init failed\n");
189 if ((err = request_irq(pci->irq, vortex_interrupt,
190 SA_INTERRUPT | SA_SHIRQ, CARD_NAME_SHORT,
192 printk(KERN_ERR "cannot grab irq\n");
195 chip->irq = pci->irq;
200 // Register alsa root device.
201 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
210 synchronize_irq(chip->irq);
211 free_irq(chip->irq, chip);
213 vortex_core_shutdown(chip);
217 pci_release_regions(chip->pci_dev);
219 pci_disable_device(chip->pci_dev);
220 //FIXME: this not the right place to unregister the gameport
221 vortex_gameport_unregister(chip);
225 // constructor -- see "Constructor" sub-section
227 snd_vortex_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
235 if (dev >= SNDRV_CARDS)
242 card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
247 if ((err = snd_vortex_create(card, pci, &chip)) < 0) {
251 snd_vortex_workaround(pci, pcifix[dev]);
252 // (4) Alloc components.
254 if ((err = snd_vortex_new_pcm(chip, VORTEX_PCM_ADB, NR_ADB)) < 0) {
260 if ((err = snd_vortex_new_pcm(chip, VORTEX_PCM_SPDIF, 1)) < 0) {
265 if ((err = snd_vortex_new_pcm(chip, VORTEX_PCM_A3D, NR_A3D)) < 0) {
272 if ((err = snd_vortex_new_pcm(chip, VORTEX_PCM_I2S, 1)) < 0) {
279 if ((err = snd_vortex_new_pcm(chip, VORTEX_PCM_WT, NR_WT)) < 0) {
284 // snd_ac97_mixer and Vortex mixer.
285 if ((err = snd_vortex_mixer(chip)) < 0) {
289 if ((err = snd_vortex_midi(chip)) < 0) {
294 vortex_gameport_register(chip);
297 if (snd_seq_device_new(card, 1, SNDRV_SEQ_DEV_ID_VORTEX_SYNTH,
298 sizeof(snd_vortex_synth_arg_t), &wave) < 0
300 snd_printk("Can't initialize Aureal wavetable synth\n");
302 snd_vortex_synth_arg_t *arg;
304 arg = SNDRV_SEQ_DEVICE_ARGPTR(wave);
305 strcpy(wave->name, "Aureal Synth");
308 arg->seq_ports = seq_ports[dev];
309 arg->max_voices = max_synth_voices[dev];
314 strcpy(card->driver, CARD_NAME_SHORT);
315 strcpy(card->shortname, CARD_NAME_SHORT);
316 sprintf(card->longname, "%s at 0x%lx irq %i",
317 card->shortname, chip->io, chip->irq);
319 if ((err = pci_read_config_word(pci, PCI_DEVICE_ID,
320 &(chip->device))) < 0) {
324 if ((err = pci_read_config_word(pci, PCI_VENDOR_ID,
325 &(chip->vendor))) < 0) {
329 if ((err = pci_read_config_byte(pci, PCI_REVISION_ID,
330 &(chip->rev))) < 0) {
335 if ((chip->rev) != 0xfe && (chip->rev) != 0xfa) {
337 "vortex: The revision (%x) of your card has not been seen before.\n",
340 "vortex: Please email the results of 'lspci -vv' to openvortex-dev@nongnu.org.\n");
348 if ((err = snd_card_register(card)) < 0) {
353 pci_set_drvdata(pci, card);
355 vortex_connect_default(chip, 1);
356 vortex_enable_int(chip);
360 // destructor -- see "Destructor" sub-section
361 static void __devexit snd_vortex_remove(struct pci_dev *pci)
363 snd_card_free(pci_get_drvdata(pci));
364 pci_set_drvdata(pci, NULL);
367 // pci_driver definition
368 static struct pci_driver driver = {
369 .name = CARD_NAME_SHORT,
370 .id_table = snd_vortex_ids,
371 .probe = snd_vortex_probe,
372 .remove = __devexit_p(snd_vortex_remove),
375 // initialization of the module
376 static int __init alsa_card_vortex_init(void)
378 return pci_register_driver(&driver);
381 // clean up the module
382 static void __exit alsa_card_vortex_exit(void)
384 pci_unregister_driver(&driver);
387 module_init(alsa_card_vortex_init)
388 module_exit(alsa_card_vortex_exit)