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 <linux/dma-mapping.h>
24 #include <sound/initval.h>
26 // module parameters (see "Module Parameters")
27 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
28 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
29 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
30 static int pcifix[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 255 };
32 module_param_array(index, int, NULL, 0444);
33 MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard.");
34 module_param_array(id, charp, NULL, 0444);
35 MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard.");
36 module_param_array(enable, bool, NULL, 0444);
37 MODULE_PARM_DESC(enable, "Enable " CARD_NAME " soundcard.");
38 module_param_array(pcifix, int, NULL, 0444);
39 MODULE_PARM_DESC(pcifix, "Enable VIA-workaround for " CARD_NAME " soundcard.");
41 MODULE_DESCRIPTION("Aureal vortex");
42 MODULE_LICENSE("GPL");
43 MODULE_SUPPORTED_DEVICE("{{Aureal Semiconductor Inc., Aureal Vortex Sound Processor}}");
45 MODULE_DEVICE_TABLE(pci, snd_vortex_ids);
47 static void vortex_fix_latency(struct pci_dev *vortex)
50 if (!(rc = pci_write_config_byte(vortex, 0x40, 0xff))) {
51 printk(KERN_INFO CARD_NAME
52 ": vortex latency is 0xff\n");
54 printk(KERN_WARNING CARD_NAME
55 ": could not set vortex latency: pci error 0x%x\n", rc);
59 static void vortex_fix_agp_bridge(struct pci_dev *via)
65 * only set the bit (Extend PCI#2 Internal Master for
66 * Efficient Handling of Dummy Requests) if the can
67 * read the config and it is not already set
70 if (!(rc = pci_read_config_byte(via, 0x42, &value))
72 || !(rc = pci_write_config_byte(via, 0x42, value | 0x10)))) {
73 printk(KERN_INFO CARD_NAME
74 ": bridge config is 0x%x\n", value | 0x10);
76 printk(KERN_WARNING CARD_NAME
77 ": could not set vortex latency: pci error 0x%x\n", rc);
81 static void __devinit snd_vortex_workaround(struct pci_dev *vortex, int fix)
83 struct pci_dev *via = NULL;
85 /* autodetect if workarounds are required */
88 via = pci_get_device(PCI_VENDOR_ID_VIA,
89 PCI_DEVICE_ID_VIA_8365_1, NULL);
92 via = pci_get_device(PCI_VENDOR_ID_VIA,
93 PCI_DEVICE_ID_VIA_82C598_1, NULL);
96 via = pci_get_device(PCI_VENDOR_ID_AMD,
97 PCI_DEVICE_ID_AMD_FE_GATE_7007, NULL);
100 printk(KERN_INFO CARD_NAME ": Activating latency workaround...\n");
101 vortex_fix_latency(vortex);
102 vortex_fix_agp_bridge(via);
106 vortex_fix_latency(vortex);
107 if ((fix & 0x2) && (via = pci_get_device(PCI_VENDOR_ID_VIA,
108 PCI_DEVICE_ID_VIA_8365_1, NULL)))
109 vortex_fix_agp_bridge(via);
110 if ((fix & 0x4) && (via = pci_get_device(PCI_VENDOR_ID_VIA,
111 PCI_DEVICE_ID_VIA_82C598_1, NULL)))
112 vortex_fix_agp_bridge(via);
113 if ((fix & 0x8) && (via = pci_get_device(PCI_VENDOR_ID_AMD,
114 PCI_DEVICE_ID_AMD_FE_GATE_7007, NULL)))
115 vortex_fix_agp_bridge(via);
120 // component-destructor
121 // (see "Management of Cards and Components")
122 static int snd_vortex_dev_free(struct snd_device *device)
124 vortex_t *vortex = device->device_data;
126 vortex_gameport_unregister(vortex);
127 vortex_core_shutdown(vortex);
128 // Take down PCI interface.
129 synchronize_irq(vortex->irq);
130 free_irq(vortex->irq, vortex);
131 pci_release_regions(vortex->pci_dev);
132 pci_disable_device(vortex->pci_dev);
138 // chip-specific constructor
139 // (see "Management of Cards and Components")
141 snd_vortex_create(struct snd_card *card, struct pci_dev *pci, vortex_t ** rchip)
145 static struct snd_device_ops ops = {
146 .dev_free = snd_vortex_dev_free,
151 // check PCI availability (DMA).
152 if ((err = pci_enable_device(pci)) < 0)
154 if (pci_set_dma_mask(pci, DMA_32BIT_MASK)) {
155 printk(KERN_ERR "error to set DMA mask\n");
159 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
165 // initialize the stuff
167 chip->io = pci_resource_start(pci, 0);
168 chip->vendor = pci->vendor;
169 chip->device = pci->device;
173 // (1) PCI resource allocation
176 if ((err = pci_request_regions(pci, CARD_NAME_SHORT)) != 0)
179 chip->mmio = ioremap_nocache(pci_resource_start(pci, 0),
180 pci_resource_len(pci, 0));
182 printk(KERN_ERR "MMIO area remap failed.\n");
188 * This must be done before we do request_irq otherwise we can get spurious
189 * interupts that we do not handle properly and make a mess of things */
190 if ((err = vortex_core_init(chip)) != 0) {
191 printk(KERN_ERR "hw core init failed\n");
195 if ((err = request_irq(pci->irq, vortex_interrupt,
196 SA_INTERRUPT | SA_SHIRQ, CARD_NAME_SHORT,
198 printk(KERN_ERR "cannot grab irq\n");
201 chip->irq = pci->irq;
206 // Register alsa root device.
207 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
216 synchronize_irq(chip->irq);
217 free_irq(chip->irq, chip);
219 vortex_core_shutdown(chip);
223 pci_release_regions(chip->pci_dev);
225 pci_disable_device(chip->pci_dev);
226 //FIXME: this not the right place to unregister the gameport
227 vortex_gameport_unregister(chip);
231 // constructor -- see "Constructor" sub-section
233 snd_vortex_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
236 struct snd_card *card;
241 if (dev >= SNDRV_CARDS)
248 card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
253 if ((err = snd_vortex_create(card, pci, &chip)) < 0) {
257 snd_vortex_workaround(pci, pcifix[dev]);
258 // (4) Alloc components.
260 if ((err = snd_vortex_new_pcm(chip, VORTEX_PCM_ADB, NR_ADB)) < 0) {
266 if ((err = snd_vortex_new_pcm(chip, VORTEX_PCM_SPDIF, 1)) < 0) {
271 if ((err = snd_vortex_new_pcm(chip, VORTEX_PCM_A3D, NR_A3D)) < 0) {
278 if ((err = snd_vortex_new_pcm(chip, VORTEX_PCM_I2S, 1)) < 0) {
285 if ((err = snd_vortex_new_pcm(chip, VORTEX_PCM_WT, NR_WT)) < 0) {
290 // snd_ac97_mixer and Vortex mixer.
291 if ((err = snd_vortex_mixer(chip)) < 0) {
295 if ((err = snd_vortex_midi(chip)) < 0) {
300 vortex_gameport_register(chip);
303 if (snd_seq_device_new(card, 1, SNDRV_SEQ_DEV_ID_VORTEX_SYNTH,
304 sizeof(snd_vortex_synth_arg_t), &wave) < 0
306 snd_printk(KERN_ERR "Can't initialize Aureal wavetable synth\n");
308 snd_vortex_synth_arg_t *arg;
310 arg = SNDRV_SEQ_DEVICE_ARGPTR(wave);
311 strcpy(wave->name, "Aureal Synth");
314 arg->seq_ports = seq_ports[dev];
315 arg->max_voices = max_synth_voices[dev];
320 strcpy(card->driver, CARD_NAME_SHORT);
321 strcpy(card->shortname, CARD_NAME_SHORT);
322 sprintf(card->longname, "%s at 0x%lx irq %i",
323 card->shortname, chip->io, chip->irq);
325 if ((err = pci_read_config_word(pci, PCI_DEVICE_ID,
326 &(chip->device))) < 0) {
330 if ((err = pci_read_config_word(pci, PCI_VENDOR_ID,
331 &(chip->vendor))) < 0) {
335 if ((err = pci_read_config_byte(pci, PCI_REVISION_ID,
336 &(chip->rev))) < 0) {
341 if ((chip->rev) != 0xfe && (chip->rev) != 0xfa) {
343 "vortex: The revision (%x) of your card has not been seen before.\n",
346 "vortex: Please email the results of 'lspci -vv' to openvortex-dev@nongnu.org.\n");
354 if ((err = snd_card_register(card)) < 0) {
359 pci_set_drvdata(pci, card);
361 vortex_connect_default(chip, 1);
362 vortex_enable_int(chip);
366 // destructor -- see "Destructor" sub-section
367 static void __devexit snd_vortex_remove(struct pci_dev *pci)
369 snd_card_free(pci_get_drvdata(pci));
370 pci_set_drvdata(pci, NULL);
373 // pci_driver definition
374 static struct pci_driver driver = {
375 .name = CARD_NAME_SHORT,
376 .id_table = snd_vortex_ids,
377 .probe = snd_vortex_probe,
378 .remove = __devexit_p(snd_vortex_remove),
381 // initialization of the module
382 static int __init alsa_card_vortex_init(void)
384 return pci_register_driver(&driver);
387 // clean up the module
388 static void __exit alsa_card_vortex_exit(void)
390 pci_unregister_driver(&driver);
393 module_init(alsa_card_vortex_init)
394 module_exit(alsa_card_vortex_exit)