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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /sound/pci/au88x0/au88x0.c
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'sound/pci/au88x0/au88x0.c')
-rw-r--r--sound/pci/au88x0/au88x0.c388
1 files changed, 388 insertions, 0 deletions
diff --git a/sound/pci/au88x0/au88x0.c b/sound/pci/au88x0/au88x0.c
new file mode 100644
index 000000000000..889b4a1a51a1
--- /dev/null
+++ b/sound/pci/au88x0/au88x0.c
@@ -0,0 +1,388 @@
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 <sound/initval.h>
24
25// module parameters (see "Module Parameters")
26static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
27static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
28static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
29static int pcifix[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 255 };
30
31module_param_array(index, int, NULL, 0444);
32MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard.");
33module_param_array(id, charp, NULL, 0444);
34MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard.");
35module_param_array(enable, bool, NULL, 0444);
36MODULE_PARM_DESC(enable, "Enable " CARD_NAME " soundcard.");
37module_param_array(pcifix, int, NULL, 0444);
38MODULE_PARM_DESC(pcifix, "Enable VIA-workaround for " CARD_NAME " soundcard.");
39
40MODULE_DESCRIPTION("Aureal vortex");
41MODULE_LICENSE("GPL");
42MODULE_SUPPORTED_DEVICE("{{Aureal Semiconductor Inc., Aureal Vortex Sound Processor}}");
43
44MODULE_DEVICE_TABLE(pci, snd_vortex_ids);
45
46static void vortex_fix_latency(struct pci_dev *vortex)
47{
48 int rc;
49 if (!(rc = pci_write_config_byte(vortex, 0x40, 0xff))) {
50 printk(KERN_INFO CARD_NAME
51 ": vortex latency is 0xff\n");
52 } else {
53 printk(KERN_WARNING CARD_NAME
54 ": could not set vortex latency: pci error 0x%x\n", rc);
55 }
56}
57
58static void vortex_fix_agp_bridge(struct pci_dev *via)
59{
60 int rc;
61 u8 value;
62
63 /*
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
67 */
68
69 if (!(rc = pci_read_config_byte(via, 0x42, &value))
70 && ((value & 0x10)
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);
74 } else {
75 printk(KERN_WARNING CARD_NAME
76 ": could not set vortex latency: pci error 0x%x\n", rc);
77 }
78}
79
80static void __devinit snd_vortex_workaround(struct pci_dev *vortex, int fix)
81{
82 struct pci_dev *via;
83
84 /* autodetect if workarounds are required */
85 if (fix == 255) {
86 /* VIA KT133 */
87 via = pci_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8365_1, NULL);
88 /* VIA Apollo */
89 if (via == NULL) {
90 via = pci_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C598_1, NULL);
91 }
92 /* AMD Irongate */
93 if (via == NULL) {
94 via = pci_find_device(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_7007, NULL);
95 }
96 if (via) {
97 printk(KERN_INFO CARD_NAME ": Activating latency workaround...\n");
98 vortex_fix_latency(vortex);
99 vortex_fix_agp_bridge(via);
100 }
101 } else {
102 if (fix & 0x1)
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);
110 }
111}
112
113// component-destructor
114// (see "Management of Cards and Components")
115static int snd_vortex_dev_free(snd_device_t * device)
116{
117 vortex_t *vortex = device->device_data;
118
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);
126 kfree(vortex);
127
128 return 0;
129}
130
131// chip-specific constructor
132// (see "Management of Cards and Components")
133static int __devinit
134snd_vortex_create(snd_card_t * card, struct pci_dev *pci, vortex_t ** rchip)
135{
136 vortex_t *chip;
137 int err;
138 static snd_device_ops_t ops = {
139 .dev_free = snd_vortex_dev_free,
140 };
141
142 *rchip = NULL;
143
144 // check PCI availability (DMA).
145 if ((err = pci_enable_device(pci)) < 0)
146 return err;
147 if (!pci_dma_supported(pci, VORTEX_DMA_MASK)) {
148 printk(KERN_ERR "error to set DMA mask\n");
149 return -ENXIO;
150 }
151 pci_set_dma_mask(pci, VORTEX_DMA_MASK);
152
153 chip = kcalloc(1, sizeof(*chip), GFP_KERNEL);
154 if (chip == NULL)
155 return -ENOMEM;
156
157 chip->card = card;
158
159 // initialize the stuff
160 chip->pci_dev = pci;
161 chip->io = pci_resource_start(pci, 0);
162 chip->vendor = pci->vendor;
163 chip->device = pci->device;
164 chip->card = card;
165 chip->irq = -1;
166
167 // (1) PCI resource allocation
168 // Get MMIO area
169 //
170 if ((err = pci_request_regions(pci, CARD_NAME_SHORT)) != 0)
171 goto regions_out;
172
173 chip->mmio = ioremap_nocache(pci_resource_start(pci, 0),
174 pci_resource_len(pci, 0));
175 if (!chip->mmio) {
176 printk(KERN_ERR "MMIO area remap failed.\n");
177 err = -ENOMEM;
178 goto ioremap_out;
179 }
180
181 /* Init audio core.
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");
186 goto core_out;
187 }
188
189 if ((err = request_irq(pci->irq, vortex_interrupt,
190 SA_INTERRUPT | SA_SHIRQ, CARD_NAME_SHORT,
191 chip)) != 0) {
192 printk(KERN_ERR "cannot grab irq\n");
193 goto irq_out;
194 }
195 chip->irq = pci->irq;
196
197 pci_set_master(pci);
198 // End of PCI setup.
199
200 // Register alsa root device.
201 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
202 goto alloc_out;
203 }
204
205 *rchip = chip;
206
207 return 0;
208
209 alloc_out:
210 synchronize_irq(chip->irq);
211 free_irq(chip->irq, chip);
212 irq_out:
213 vortex_core_shutdown(chip);
214 core_out:
215 iounmap(chip->mmio);
216 ioremap_out:
217 pci_release_regions(chip->pci_dev);
218 regions_out:
219 pci_disable_device(chip->pci_dev);
220 //FIXME: this not the right place to unregister the gameport
221 vortex_gameport_unregister(chip);
222 return err;
223}
224
225// constructor -- see "Constructor" sub-section
226static int __devinit
227snd_vortex_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
228{
229 static int dev;
230 snd_card_t *card;
231 vortex_t *chip;
232 int err;
233
234 // (1)
235 if (dev >= SNDRV_CARDS)
236 return -ENODEV;
237 if (!enable[dev]) {
238 dev++;
239 return -ENOENT;
240 }
241 // (2)
242 card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
243 if (card == NULL)
244 return -ENOMEM;
245
246 // (3)
247 if ((err = snd_vortex_create(card, pci, &chip)) < 0) {
248 snd_card_free(card);
249 return err;
250 }
251 snd_vortex_workaround(pci, pcifix[dev]);
252 // (4) Alloc components.
253 // ADB pcm.
254 if ((err = snd_vortex_new_pcm(chip, VORTEX_PCM_ADB, NR_ADB)) < 0) {
255 snd_card_free(card);
256 return err;
257 }
258#ifndef CHIP_AU8820
259 // ADB SPDIF
260 if ((err = snd_vortex_new_pcm(chip, VORTEX_PCM_SPDIF, 1)) < 0) {
261 snd_card_free(card);
262 return err;
263 }
264 // A3D
265 if ((err = snd_vortex_new_pcm(chip, VORTEX_PCM_A3D, NR_A3D)) < 0) {
266 snd_card_free(card);
267 return err;
268 }
269#endif
270 /*
271 // ADB I2S
272 if ((err = snd_vortex_new_pcm(chip, VORTEX_PCM_I2S, 1)) < 0) {
273 snd_card_free(card);
274 return err;
275 }
276 */
277#ifndef CHIP_AU8810
278 // WT pcm.
279 if ((err = snd_vortex_new_pcm(chip, VORTEX_PCM_WT, NR_WT)) < 0) {
280 snd_card_free(card);
281 return err;
282 }
283#endif
284 // snd_ac97_mixer and Vortex mixer.
285 if ((err = snd_vortex_mixer(chip)) < 0) {
286 snd_card_free(card);
287 return err;
288 }
289 if ((err = snd_vortex_midi(chip)) < 0) {
290 snd_card_free(card);
291 return err;
292 }
293
294 vortex_gameport_register(chip);
295
296#if 0
297 if (snd_seq_device_new(card, 1, SNDRV_SEQ_DEV_ID_VORTEX_SYNTH,
298 sizeof(snd_vortex_synth_arg_t), &wave) < 0
299 || wave == NULL) {
300 snd_printk("Can't initialize Aureal wavetable synth\n");
301 } else {
302 snd_vortex_synth_arg_t *arg;
303
304 arg = SNDRV_SEQ_DEVICE_ARGPTR(wave);
305 strcpy(wave->name, "Aureal Synth");
306 arg->hwptr = vortex;
307 arg->index = 1;
308 arg->seq_ports = seq_ports[dev];
309 arg->max_voices = max_synth_voices[dev];
310 }
311#endif
312
313 // (5)
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);
318
319 if ((err = pci_read_config_word(pci, PCI_DEVICE_ID,
320 &(chip->device))) < 0) {
321 snd_card_free(card);
322 return err;
323 }
324 if ((err = pci_read_config_word(pci, PCI_VENDOR_ID,
325 &(chip->vendor))) < 0) {
326 snd_card_free(card);
327 return err;
328 }
329 if ((err = pci_read_config_byte(pci, PCI_REVISION_ID,
330 &(chip->rev))) < 0) {
331 snd_card_free(card);
332 return err;
333 }
334#ifdef CHIP_AU8830
335 if ((chip->rev) != 0xfe && (chip->rev) != 0xfa) {
336 printk(KERN_ALERT
337 "vortex: The revision (%x) of your card has not been seen before.\n",
338 chip->rev);
339 printk(KERN_ALERT
340 "vortex: Please email the results of 'lspci -vv' to openvortex-dev@nongnu.org.\n");
341 snd_card_free(card);
342 err = -ENODEV;
343 return err;
344 }
345#endif
346
347 // (6)
348 if ((err = snd_card_register(card)) < 0) {
349 snd_card_free(card);
350 return err;
351 }
352 // (7)
353 pci_set_drvdata(pci, card);
354 dev++;
355 vortex_connect_default(chip, 1);
356 vortex_enable_int(chip);
357 return 0;
358}
359
360// destructor -- see "Destructor" sub-section
361static void __devexit snd_vortex_remove(struct pci_dev *pci)
362{
363 snd_card_free(pci_get_drvdata(pci));
364 pci_set_drvdata(pci, NULL);
365}
366
367// pci_driver definition
368static 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),
373};
374
375// initialization of the module
376static int __init alsa_card_vortex_init(void)
377{
378 return pci_module_init(&driver);
379}
380
381// clean up the module
382static void __exit alsa_card_vortex_exit(void)
383{
384 pci_unregister_driver(&driver);
385}
386
387module_init(alsa_card_vortex_init)
388module_exit(alsa_card_vortex_exit)