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[linux-2.6/mini2440.git] / sound / isa / gus / gus_main.c
blob8ced5e81b9a7049371aa968901c696a5d8e840f1
1 /*
2 * Routines for Gravis UltraSound soundcards
3 * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
4 *
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 *
20 */
21
22 #include <sound/driver.h>
23 #include <linux/init.h>
24 #include <linux/interrupt.h>
25 #include <linux/delay.h>
26 #include <linux/slab.h>
27 #include <linux/ioport.h>
28 #include <sound/core.h>
29 #include <sound/gus.h>
30 #include <sound/control.h>
31
32 #include <asm/dma.h>
33
34 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
35 MODULE_DESCRIPTION("Routines for Gravis UltraSound soundcards");
36 MODULE_LICENSE("GPL");
37
38 static int snd_gus_init_dma_irq(struct snd_gus_card * gus, int latches);
39
40 int snd_gus_use_inc(struct snd_gus_card * gus)
41 {
42 if (!try_module_get(gus->card->module))
43 return 0;
44 return 1;
45 }
46
47 void snd_gus_use_dec(struct snd_gus_card * gus)
48 {
49 module_put(gus->card->module);
50 }
51
52 static int snd_gus_joystick_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
53 {
54 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
55 uinfo->count = 1;
56 uinfo->value.integer.min = 0;
57 uinfo->value.integer.max = 31;
58 return 0;
59 }
60
61 static int snd_gus_joystick_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
62 {
63 struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
64
65 ucontrol->value.integer.value[0] = gus->joystick_dac & 31;
66 return 0;
67 }
68
69 static int snd_gus_joystick_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
70 {
71 struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
72 unsigned long flags;
73 int change;
74 unsigned char nval;
75
76 nval = ucontrol->value.integer.value[0] & 31;
77 spin_lock_irqsave(&gus->reg_lock, flags);
78 change = gus->joystick_dac != nval;
79 gus->joystick_dac = nval;
80 snd_gf1_write8(gus, SNDRV_GF1_GB_JOYSTICK_DAC_LEVEL, gus->joystick_dac);
81 spin_unlock_irqrestore(&gus->reg_lock, flags);
82 return change;
83 }
84
85 static struct snd_kcontrol_new snd_gus_joystick_control = {
86 .iface = SNDRV_CTL_ELEM_IFACE_CARD,
87 .name = "Joystick Speed",
88 .info = snd_gus_joystick_info,
89 .get = snd_gus_joystick_get,
90 .put = snd_gus_joystick_put
91 };
92
93 static void snd_gus_init_control(struct snd_gus_card *gus)
94 {
95 if (!gus->ace_flag)
96 snd_ctl_add(gus->card, snd_ctl_new1(&snd_gus_joystick_control, gus));
97 }
98
99 /*
100 *
101 */
102
103 static int snd_gus_free(struct snd_gus_card *gus)
104 {
105 if (gus->gf1.res_port2 == NULL)
106 goto __hw_end;
107 #if defined(CONFIG_SND_SEQUENCER) || (defined(MODULE) && defined(CONFIG_SND_SEQUENCER_MODULE))
108 if (gus->seq_dev) {
109 snd_device_free(gus->card, gus->seq_dev);
110 gus->seq_dev = NULL;
111 }
112 #endif
113 snd_gf1_stop(gus);
114 snd_gus_init_dma_irq(gus, 0);
115 __hw_end:
116 release_and_free_resource(gus->gf1.res_port1);
117 release_and_free_resource(gus->gf1.res_port2);
118 if (gus->gf1.irq >= 0)
119 free_irq(gus->gf1.irq, (void *) gus);
120 if (gus->gf1.dma1 >= 0) {
121 disable_dma(gus->gf1.dma1);
122 free_dma(gus->gf1.dma1);
123 }
124 if (!gus->equal_dma && gus->gf1.dma2 >= 0) {
125 disable_dma(gus->gf1.dma2);
126 free_dma(gus->gf1.dma2);
127 }
128 kfree(gus);
129 return 0;
130 }
131
132 static int snd_gus_dev_free(struct snd_device *device)
133 {
134 struct snd_gus_card *gus = device->device_data;
135 return snd_gus_free(gus);
136 }
137
138 int snd_gus_create(struct snd_card *card,
139 unsigned long port,
140 int irq, int dma1, int dma2,
141 int timer_dev,
142 int voices,
143 int pcm_channels,
144 int effect,
145 struct snd_gus_card **rgus)
146 {
147 struct snd_gus_card *gus;
148 int err;
149 static struct snd_device_ops ops = {
150 .dev_free = snd_gus_dev_free,
151 };
152
153 *rgus = NULL;
154 gus = kzalloc(sizeof(*gus), GFP_KERNEL);
155 if (gus == NULL)
156 return -ENOMEM;
157 gus->gf1.irq = -1;
158 gus->gf1.dma1 = -1;
159 gus->gf1.dma2 = -1;
160 gus->card = card;
161 gus->gf1.port = port;
162 /* fill register variables for speedup */
163 gus->gf1.reg_page = GUSP(gus, GF1PAGE);
164 gus->gf1.reg_regsel = GUSP(gus, GF1REGSEL);
165 gus->gf1.reg_data8 = GUSP(gus, GF1DATAHIGH);
166 gus->gf1.reg_data16 = GUSP(gus, GF1DATALOW);
167 gus->gf1.reg_irqstat = GUSP(gus, IRQSTAT);
168 gus->gf1.reg_dram = GUSP(gus, DRAM);
169 gus->gf1.reg_timerctrl = GUSP(gus, TIMERCNTRL);
170 gus->gf1.reg_timerdata = GUSP(gus, TIMERDATA);
171 /* allocate resources */
172 if ((gus->gf1.res_port1 = request_region(port, 16, "GUS GF1 (Adlib/SB)")) == NULL) {
173 snd_printk(KERN_ERR "gus: can't grab SB port 0x%lx\n", port);
174 snd_gus_free(gus);
175 return -EBUSY;
176 }
177 if ((gus->gf1.res_port2 = request_region(port + 0x100, 12, "GUS GF1 (Synth)")) == NULL) {
178 snd_printk(KERN_ERR "gus: can't grab synth port 0x%lx\n", port + 0x100);
179 snd_gus_free(gus);
180 return -EBUSY;
181 }
182 if (irq >= 0 && request_irq(irq, snd_gus_interrupt, IRQF_DISABLED, "GUS GF1", (void *) gus)) {
183 snd_printk(KERN_ERR "gus: can't grab irq %d\n", irq);
184 snd_gus_free(gus);
185 return -EBUSY;
186 }
187 gus->gf1.irq = irq;
188 if (request_dma(dma1, "GUS - 1")) {
189 snd_printk(KERN_ERR "gus: can't grab DMA1 %d\n", dma1);
190 snd_gus_free(gus);
191 return -EBUSY;
192 }
193 gus->gf1.dma1 = dma1;
194 if (dma2 >= 0 && dma1 != dma2) {
195 if (request_dma(dma2, "GUS - 2")) {
196 snd_printk(KERN_ERR "gus: can't grab DMA2 %d\n", dma2);
197 snd_gus_free(gus);
198 return -EBUSY;
199 }
200 gus->gf1.dma2 = dma2;
201 } else {
202 gus->gf1.dma2 = gus->gf1.dma1;
203 gus->equal_dma = 1;
204 }
205 gus->timer_dev = timer_dev;
206 if (voices < 14)
207 voices = 14;
208 if (voices > 32)
209 voices = 32;
210 if (pcm_channels < 0)
211 pcm_channels = 0;
212 if (pcm_channels > 8)
213 pcm_channels = 8;
214 pcm_channels++;
215 pcm_channels &= ~1;
216 gus->gf1.effect = effect ? 1 : 0;
217 gus->gf1.active_voices = voices;
218 gus->gf1.pcm_channels = pcm_channels;
219 gus->gf1.volume_ramp = 25;
220 gus->gf1.smooth_pan = 1;
221 spin_lock_init(&gus->reg_lock);
222 spin_lock_init(&gus->voice_alloc);
223 spin_lock_init(&gus->active_voice_lock);
224 spin_lock_init(&gus->event_lock);
225 spin_lock_init(&gus->dma_lock);
226 spin_lock_init(&gus->pcm_volume_level_lock);
227 spin_lock_init(&gus->uart_cmd_lock);
228 mutex_init(&gus->dma_mutex);
229 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, gus, &ops)) < 0) {
230 snd_gus_free(gus);
231 return err;
232 }
233 *rgus = gus;
234 return 0;
235 }
236
237 /*
238 * Memory detection routine for plain GF1 soundcards
239 */
240
241 static int snd_gus_detect_memory(struct snd_gus_card * gus)
242 {
243 int l, idx, local;
244 unsigned char d;
245
246 snd_gf1_poke(gus, 0L, 0xaa);
247 snd_gf1_poke(gus, 1L, 0x55);
248 if (snd_gf1_peek(gus, 0L) != 0xaa || snd_gf1_peek(gus, 1L) != 0x55) {
249 snd_printk(KERN_ERR "plain GF1 card at 0x%lx without onboard DRAM?\n", gus->gf1.port);
250 return -ENOMEM;
251 }
252 for (idx = 1, d = 0xab; idx < 4; idx++, d++) {
253 local = idx << 18;
254 snd_gf1_poke(gus, local, d);
255 snd_gf1_poke(gus, local + 1, d + 1);
256 if (snd_gf1_peek(gus, local) != d ||
257 snd_gf1_peek(gus, local + 1) != d + 1 ||
258 snd_gf1_peek(gus, 0L) != 0xaa)
259 break;
260 }
261 #if 1
262 gus->gf1.memory = idx << 18;
263 #else
264 gus->gf1.memory = 256 * 1024;
265 #endif
266 for (l = 0, local = gus->gf1.memory; l < 4; l++, local -= 256 * 1024) {
267 gus->gf1.mem_alloc.banks_8[l].address =
268 gus->gf1.mem_alloc.banks_8[l].size = 0;
269 gus->gf1.mem_alloc.banks_16[l].address = l << 18;
270 gus->gf1.mem_alloc.banks_16[l].size = local > 0 ? 256 * 1024 : 0;
271 }
272 gus->gf1.mem_alloc.banks_8[0].size = gus->gf1.memory;
273 return 0; /* some memory were detected */
274 }
275
276 static int snd_gus_init_dma_irq(struct snd_gus_card * gus, int latches)
277 {
278 struct snd_card *card;
279 unsigned long flags;
280 int irq, dma1, dma2;
281 static unsigned char irqs[16] =
282 {0, 0, 1, 3, 0, 2, 0, 4, 0, 1, 0, 5, 6, 0, 0, 7};
283 static unsigned char dmas[8] =
284 {6, 1, 0, 2, 0, 3, 4, 5};
285
286 snd_assert(gus != NULL, return -EINVAL);
287 card = gus->card;
288 snd_assert(card != NULL, return -EINVAL);
289
290 gus->mix_cntrl_reg &= 0xf8;
291 gus->mix_cntrl_reg |= 0x01; /* disable MIC, LINE IN, enable LINE OUT */
292 if (gus->codec_flag || gus->ess_flag) {
293 gus->mix_cntrl_reg &= ~1; /* enable LINE IN */
294 gus->mix_cntrl_reg |= 4; /* enable MIC */
295 }
296 dma1 = gus->gf1.dma1;
297 dma1 = abs(dma1);
298 dma1 = dmas[dma1 & 7];
299 dma2 = gus->gf1.dma2;
300 dma2 = abs(dma2);
301 dma2 = dmas[dma2 & 7];
302 dma1 |= gus->equal_dma ? 0x40 : (dma2 << 3);
303
304 if ((dma1 & 7) == 0 || (dma2 & 7) == 0) {
305 snd_printk(KERN_ERR "Error! DMA isn't defined.\n");
306 return -EINVAL;
307 }
308 irq = gus->gf1.irq;
309 irq = abs(irq);
310 irq = irqs[irq & 0x0f];
311 if (irq == 0) {
312 snd_printk(KERN_ERR "Error! IRQ isn't defined.\n");
313 return -EINVAL;
314 }
315 irq |= 0x40;
316 #if 0
317 card->mixer.mix_ctrl_reg |= 0x10;
318 #endif
319
320 spin_lock_irqsave(&gus->reg_lock, flags);
321 outb(5, GUSP(gus, REGCNTRLS));
322 outb(gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
323 outb(0x00, GUSP(gus, IRQDMACNTRLREG));
324 outb(0, GUSP(gus, REGCNTRLS));
325 spin_unlock_irqrestore(&gus->reg_lock, flags);
326
327 udelay(100);
328
329 spin_lock_irqsave(&gus->reg_lock, flags);
330 outb(0x00 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
331 outb(dma1, GUSP(gus, IRQDMACNTRLREG));
332 if (latches) {
333 outb(0x40 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
334 outb(irq, GUSP(gus, IRQDMACNTRLREG));
335 }
336 spin_unlock_irqrestore(&gus->reg_lock, flags);
337
338 udelay(100);
339
340 spin_lock_irqsave(&gus->reg_lock, flags);
341 outb(0x00 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
342 outb(dma1, GUSP(gus, IRQDMACNTRLREG));
343 if (latches) {
344 outb(0x40 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
345 outb(irq, GUSP(gus, IRQDMACNTRLREG));
346 }
347 spin_unlock_irqrestore(&gus->reg_lock, flags);
348
349 snd_gf1_delay(gus);
350
351 if (latches)
352 gus->mix_cntrl_reg |= 0x08; /* enable latches */
353 else
354 gus->mix_cntrl_reg &= ~0x08; /* disable latches */
355 spin_lock_irqsave(&gus->reg_lock, flags);
356 outb(gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
357 outb(0, GUSP(gus, GF1PAGE));
358 spin_unlock_irqrestore(&gus->reg_lock, flags);
359
360 return 0;
361 }
362
363 static int snd_gus_check_version(struct snd_gus_card * gus)
364 {
365 unsigned long flags;
366 unsigned char val, rev;
367 struct snd_card *card;
368
369 card = gus->card;
370 spin_lock_irqsave(&gus->reg_lock, flags);
371 outb(0x20, GUSP(gus, REGCNTRLS));
372 val = inb(GUSP(gus, REGCNTRLS));
373 rev = inb(GUSP(gus, BOARDVERSION));
374 spin_unlock_irqrestore(&gus->reg_lock, flags);
375 snd_printdd("GF1 [0x%lx] init - val = 0x%x, rev = 0x%x\n", gus->gf1.port, val, rev);
376 strcpy(card->driver, "GUS");
377 strcpy(card->longname, "Gravis UltraSound Classic (2.4)");
378 if ((val != 255 && (val & 0x06)) || (rev >= 5 && rev != 255)) {
379 if (rev >= 5 && rev <= 9) {
380 gus->ics_flag = 1;
381 if (rev == 5)
382 gus->ics_flipped = 1;
383 card->longname[27] = '3';
384 card->longname[29] = rev == 5 ? '5' : '7';
385 }
386 if (rev >= 10 && rev != 255) {
387 if (rev >= 10 && rev <= 11) {
388 strcpy(card->driver, "GUS MAX");
389 strcpy(card->longname, "Gravis UltraSound MAX");
390 gus->max_flag = 1;
391 } else if (rev == 0x30) {
392 strcpy(card->driver, "GUS ACE");
393 strcpy(card->longname, "Gravis UltraSound Ace");
394 gus->ace_flag = 1;
395 } else if (rev == 0x50) {
396 strcpy(card->driver, "GUS Extreme");
397 strcpy(card->longname, "Gravis UltraSound Extreme");
398 gus->ess_flag = 1;
399 } else {
400 snd_printk(KERN_ERR "unknown GF1 revision number at 0x%lx - 0x%x (0x%x)\n", gus->gf1.port, rev, val);
401 snd_printk(KERN_ERR " please - report to <perex@suse.cz>\n");
402 }
403 }
404 }
405 strcpy(card->shortname, card->longname);
406 gus->uart_enable = 1; /* standard GUSes doesn't have midi uart trouble */
407 snd_gus_init_control(gus);
408 return 0;
409 }
410
411 #if defined(CONFIG_SND_SEQUENCER) || (defined(MODULE) && defined(CONFIG_SND_SEQUENCER_MODULE))
412 static void snd_gus_seq_dev_free(struct snd_seq_device *seq_dev)
413 {
414 struct snd_gus_card *gus = seq_dev->private_data;
415 gus->seq_dev = NULL;
416 }
417 #endif
418
419 int snd_gus_initialize(struct snd_gus_card *gus)
420 {
421 int err;
422
423 if (!gus->interwave) {
424 if ((err = snd_gus_check_version(gus)) < 0) {
425 snd_printk(KERN_ERR "version check failed\n");
426 return err;
427 }
428 if ((err = snd_gus_detect_memory(gus)) < 0)
429 return err;
430 }
431 if ((err = snd_gus_init_dma_irq(gus, 1)) < 0)
432 return err;
433 #if defined(CONFIG_SND_SEQUENCER) || (defined(MODULE) && defined(CONFIG_SND_SEQUENCER_MODULE))
434 if (snd_seq_device_new(gus->card, 1, SNDRV_SEQ_DEV_ID_GUS,
435 sizeof(struct snd_gus_card *), &gus->seq_dev) >= 0) {
436 strcpy(gus->seq_dev->name, "GUS");
437 *(struct snd_gus_card **)SNDRV_SEQ_DEVICE_ARGPTR(gus->seq_dev) = gus;
438 gus->seq_dev->private_data = gus;
439 gus->seq_dev->private_free = snd_gus_seq_dev_free;
440 }
441 #endif
442 snd_gf1_start(gus);
443 gus->initialized = 1;
444 return 0;
445 }
446
447 /* gus_io.c */
448 EXPORT_SYMBOL(snd_gf1_delay);
449 EXPORT_SYMBOL(snd_gf1_write8);
450 EXPORT_SYMBOL(snd_gf1_look8);
451 EXPORT_SYMBOL(snd_gf1_write16);
452 EXPORT_SYMBOL(snd_gf1_look16);
453 EXPORT_SYMBOL(snd_gf1_i_write8);
454 EXPORT_SYMBOL(snd_gf1_i_look8);
455 EXPORT_SYMBOL(snd_gf1_i_look16);
456 EXPORT_SYMBOL(snd_gf1_dram_addr);
457 EXPORT_SYMBOL(snd_gf1_write_addr);
458 EXPORT_SYMBOL(snd_gf1_poke);
459 EXPORT_SYMBOL(snd_gf1_peek);
460 /* gus_reset.c */
461 EXPORT_SYMBOL(snd_gf1_alloc_voice);
462 EXPORT_SYMBOL(snd_gf1_free_voice);
463 EXPORT_SYMBOL(snd_gf1_ctrl_stop);
464 EXPORT_SYMBOL(snd_gf1_stop_voice);
465 /* gus_mixer.c */
466 EXPORT_SYMBOL(snd_gf1_new_mixer);
467 /* gus_pcm.c */
468 EXPORT_SYMBOL(snd_gf1_pcm_new);
469 /* gus.c */
470 EXPORT_SYMBOL(snd_gus_use_inc);
471 EXPORT_SYMBOL(snd_gus_use_dec);
472 EXPORT_SYMBOL(snd_gus_create);
473 EXPORT_SYMBOL(snd_gus_initialize);
474 /* gus_irq.c */
475 EXPORT_SYMBOL(snd_gus_interrupt);
476 /* gus_uart.c */
477 EXPORT_SYMBOL(snd_gf1_rawmidi_new);
478 /* gus_dram.c */
479 EXPORT_SYMBOL(snd_gus_dram_write);
480 EXPORT_SYMBOL(snd_gus_dram_read);
481 /* gus_volume.c */
482 EXPORT_SYMBOL(snd_gf1_lvol_to_gvol_raw);
483 EXPORT_SYMBOL(snd_gf1_translate_freq);
484 /* gus_mem.c */
485 EXPORT_SYMBOL(snd_gf1_mem_alloc);
486 EXPORT_SYMBOL(snd_gf1_mem_xfree);
487 EXPORT_SYMBOL(snd_gf1_mem_free);
488 EXPORT_SYMBOL(snd_gf1_mem_lock);
489
490 /*
491 * INIT part
492 */
493
494 static int __init alsa_gus_init(void)
495 {
496 return 0;
497 }
498
499 static void __exit alsa_gus_exit(void)
500 {
501 }
502
503 module_init(alsa_gus_init)
504 module_exit(alsa_gus_exit)
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