1 /*
2 * ALSA driver for the Aureal Vortex family of soundprocessors.
3 * Author: Manuel Jander (mjander@embedded.cl)
4 *
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
10 * the ALSA part.
11 * Thanks also to Sourceforge for maintaining the old binary drivers,
12 * and the forum, where developers could comunicate.
13 *
14 * Now at least i can play Legacy DOOM with MIDI music :-)
15 */
16
17 #include "au88x0.h"
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>
25
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 };
31
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.");
40
41 MODULE_DESCRIPTION("Aureal vortex");
42 MODULE_LICENSE("GPL");
43 MODULE_SUPPORTED_DEVICE("{{Aureal Semiconductor Inc., Aureal Vortex Sound Processor}}");
44
45 MODULE_DEVICE_TABLE(pci, snd_vortex_ids);
46
47 static void vortex_fix_latency(struct pci_dev *vortex)
48 {
49 int rc;
50 if (!(rc = pci_write_config_byte(vortex, 0x40, 0xff))) {
51 printk(KERN_INFO CARD_NAME
52 ": vortex latency is 0xff\n");
53 } else {
54 printk(KERN_WARNING CARD_NAME
55 ": could not set vortex latency: pci error 0x%x\n", rc);
56 }
57 }
58
59 static void vortex_fix_agp_bridge(struct pci_dev *via)
60 {
61 int rc;
62 u8 value;
63
64 /*
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
68 */
69
70 if (!(rc = pci_read_config_byte(via, 0x42, &value))
71 && ((value & 0x10)
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);
75 } else {
76 printk(KERN_WARNING CARD_NAME
77 ": could not set vortex latency: pci error 0x%x\n", rc);
78 }
79 }
80
81 static void __devinit snd_vortex_workaround(struct pci_dev *vortex, int fix)
82 {
83 struct pci_dev *via = NULL;
84
85 /* autodetect if workarounds are required */
86 if (fix == 255) {
87 /* VIA KT133 */
88 via = pci_get_device(PCI_VENDOR_ID_VIA,
89 PCI_DEVICE_ID_VIA_8365_1, NULL);
90 /* VIA Apollo */
91 if (via == NULL) {
92 via = pci_get_device(PCI_VENDOR_ID_VIA,
93 PCI_DEVICE_ID_VIA_82C598_1, NULL);
94 /* AMD Irongate */
95 if (via == NULL)
96 via = pci_get_device(PCI_VENDOR_ID_AMD,
97 PCI_DEVICE_ID_AMD_FE_GATE_7007, NULL);
98 }
99 if (via) {
100 printk(KERN_INFO CARD_NAME ": Activating latency workaround...\n");
101 vortex_fix_latency(vortex);
102 vortex_fix_agp_bridge(via);
103 }
104 } else {
105 if (fix & 0x1)
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);
116 }
117 pci_dev_put(via);
118 }
119
120 // component-destructor
121 // (see "Management of Cards and Components")
122 static int snd_vortex_dev_free(struct snd_device *device)
123 {
124 vortex_t *vortex = device->device_data;
125
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 iounmap(vortex->mmio);
132 pci_release_regions(vortex->pci_dev);
133 pci_disable_device(vortex->pci_dev);
134 kfree(vortex);
135
136 return 0;
137 }
138
139 // chip-specific constructor
140 // (see "Management of Cards and Components")
141 static int __devinit
142 snd_vortex_create(struct snd_card *card, struct pci_dev *pci, vortex_t ** rchip)
143 {
144 vortex_t *chip;
145 int err;
146 static struct snd_device_ops ops = {
147 .dev_free = snd_vortex_dev_free,
148 };
149
150 *rchip = NULL;
151
152 // check PCI availability (DMA).
153 if ((err = pci_enable_device(pci)) < 0)
154 return err;
155 if (pci_set_dma_mask(pci, DMA_32BIT_MASK) < 0 ||
156 pci_set_consistent_dma_mask(pci, DMA_32BIT_MASK) < 0) {
157 printk(KERN_ERR "error to set DMA mask\n");
158 pci_disable_device(pci);
159 return -ENXIO;
160 }
161
162 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
163 if (chip == NULL) {
164 pci_disable_device(pci);
165 return -ENOMEM;
166 }
167
168 chip->card = card;
169
170 // initialize the stuff
171 chip->pci_dev = pci;
172 chip->io = pci_resource_start(pci, 0);
173 chip->vendor = pci->vendor;
174 chip->device = pci->device;
175 chip->card = card;
176 chip->irq = -1;
177
178 // (1) PCI resource allocation
179 // Get MMIO area
180 //
181 if ((err = pci_request_regions(pci, CARD_NAME_SHORT)) != 0)
182 goto regions_out;
183
184 chip->mmio = ioremap_nocache(pci_resource_start(pci, 0),
185 pci_resource_len(pci, 0));
186 if (!chip->mmio) {
187 printk(KERN_ERR "MMIO area remap failed.\n");
188 err = -ENOMEM;
189 goto ioremap_out;
190 }
191
192 /* Init audio core.
193 * This must be done before we do request_irq otherwise we can get spurious
194 * interrupts that we do not handle properly and make a mess of things */
195 if ((err = vortex_core_init(chip)) != 0) {
196 printk(KERN_ERR "hw core init failed\n");
197 goto core_out;
198 }
199
200 if ((err = request_irq(pci->irq, vortex_interrupt,
201 IRQF_SHARED, CARD_NAME_SHORT,
202 chip)) != 0) {
203 printk(KERN_ERR "cannot grab irq\n");
204 goto irq_out;
205 }
206 chip->irq = pci->irq;
207
208 pci_set_master(pci);
209 // End of PCI setup.
210
211 // Register alsa root device.
212 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
213 goto alloc_out;
214 }
215
216 snd_card_set_dev(card, &pci->dev);
217
218 *rchip = chip;
219
220 return 0;
221
222 alloc_out:
223 synchronize_irq(chip->irq);
224 free_irq(chip->irq, chip);
225 irq_out:
226 vortex_core_shutdown(chip);
227 core_out:
228 iounmap(chip->mmio);
229 ioremap_out:
230 pci_release_regions(chip->pci_dev);
231 regions_out:
232 pci_disable_device(chip->pci_dev);
233 //FIXME: this not the right place to unregister the gameport
234 vortex_gameport_unregister(chip);
235 kfree(chip);
236 return err;
237 }
238
239 // constructor -- see "Constructor" sub-section
240 static int __devinit
241 snd_vortex_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
242 {
243 static int dev;
244 struct snd_card *card;
245 vortex_t *chip;
246 int err;
247
248 // (1)
249 if (dev >= SNDRV_CARDS)
250 return -ENODEV;
251 if (!enable[dev]) {
252 dev++;
253 return -ENOENT;
254 }
255 // (2)
256 card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
257 if (card == NULL)
258 return -ENOMEM;
259
260 // (3)
261 if ((err = snd_vortex_create(card, pci, &chip)) < 0) {
262 snd_card_free(card);
263 return err;
264 }
265 snd_vortex_workaround(pci, pcifix[dev]);
266
267 // Card details needed in snd_vortex_midi
268 strcpy(card->driver, CARD_NAME_SHORT);
269 sprintf(card->shortname, "Aureal Vortex %s", CARD_NAME_SHORT);
270 sprintf(card->longname, "%s at 0x%lx irq %i",
271 card->shortname, chip->io, chip->irq);
272
273 // (4) Alloc components.
274 // ADB pcm.
275 if ((err = snd_vortex_new_pcm(chip, VORTEX_PCM_ADB, NR_ADB)) < 0) {
276 snd_card_free(card);
277 return err;
278 }
279 #ifndef CHIP_AU8820
280 // ADB SPDIF
281 if ((err = snd_vortex_new_pcm(chip, VORTEX_PCM_SPDIF, 1)) < 0) {
282 snd_card_free(card);
283 return err;
284 }
285 // A3D
286 if ((err = snd_vortex_new_pcm(chip, VORTEX_PCM_A3D, NR_A3D)) < 0) {
287 snd_card_free(card);
288 return err;
289 }
290 #endif
291 /*
292 // ADB I2S
293 if ((err = snd_vortex_new_pcm(chip, VORTEX_PCM_I2S, 1)) < 0) {
294 snd_card_free(card);
295 return err;
296 }
297 */
298 #ifndef CHIP_AU8810
299 // WT pcm.
300 if ((err = snd_vortex_new_pcm(chip, VORTEX_PCM_WT, NR_WT)) < 0) {
301 snd_card_free(card);
302 return err;
303 }
304 #endif
305 // snd_ac97_mixer and Vortex mixer.
306 if ((err = snd_vortex_mixer(chip)) < 0) {
307 snd_card_free(card);
308 return err;
309 }
310 if ((err = snd_vortex_midi(chip)) < 0) {
311 snd_card_free(card);
312 return err;
313 }
314
315 vortex_gameport_register(chip);
316
317 #if 0
318 if (snd_seq_device_new(card, 1, SNDRV_SEQ_DEV_ID_VORTEX_SYNTH,
319 sizeof(snd_vortex_synth_arg_t), &wave) < 0
320 || wave == NULL) {
321 snd_printk(KERN_ERR "Can't initialize Aureal wavetable synth\n");
322 } else {
323 snd_vortex_synth_arg_t *arg;
324
325 arg = SNDRV_SEQ_DEVICE_ARGPTR(wave);
326 strcpy(wave->name, "Aureal Synth");
327 arg->hwptr = vortex;
328 arg->index = 1;
329 arg->seq_ports = seq_ports[dev];
330 arg->max_voices = max_synth_voices[dev];
331 }
332 #endif
333
334 // (5)
335 if ((err = pci_read_config_word(pci, PCI_DEVICE_ID,
336 &(chip->device))) < 0) {
337 snd_card_free(card);
338 return err;
339 }
340 if ((err = pci_read_config_word(pci, PCI_VENDOR_ID,
341 &(chip->vendor))) < 0) {
342 snd_card_free(card);
343 return err;
344 }
345 chip->rev = pci->revision;
346 #ifdef CHIP_AU8830
347 if ((chip->rev) != 0xfe && (chip->rev) != 0xfa) {
348 printk(KERN_ALERT
349 "vortex: The revision (%x) of your card has not been seen before.\n",
350 chip->rev);
351 printk(KERN_ALERT
352 "vortex: Please email the results of 'lspci -vv' to openvortex-dev@nongnu.org.\n");
353 snd_card_free(card);
354 err = -ENODEV;
355 return err;
356 }
357 #endif
358
359 // (6)
360 if ((err = snd_card_register(card)) < 0) {
361 snd_card_free(card);
362 return err;
363 }
364 // (7)
365 pci_set_drvdata(pci, card);
366 dev++;
367 vortex_connect_default(chip, 1);
368 vortex_enable_int(chip);
369 return 0;
370 }
371
372 // destructor -- see "Destructor" sub-section
373 static void __devexit snd_vortex_remove(struct pci_dev *pci)
374 {
375 snd_card_free(pci_get_drvdata(pci));
376 pci_set_drvdata(pci, NULL);
377 }
378
379 // pci_driver definition
380 static struct pci_driver driver = {
381 .name = CARD_NAME_SHORT,
382 .id_table = snd_vortex_ids,
383 .probe = snd_vortex_probe,
384 .remove = __devexit_p(snd_vortex_remove),
385 };
386
387 // initialization of the module
388 static int __init alsa_card_vortex_init(void)
389 {
390 return pci_register_driver(&driver);
391 }
392
393 // clean up the module
394 static void __exit alsa_card_vortex_exit(void)
395 {
396 pci_unregister_driver(&driver);
397 }
398
399 module_init(alsa_card_vortex_init)
400 module_exit(alsa_card_vortex_exit)
401
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