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[PATCH] fix semaphore handling in __unregister_chrdev_region
[linux/fpc-iii.git] / sound / isa / gus / gus_main.c
blob73f81c14f768ccfc4e7a5e0ba43a201489b648ca
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(snd_gus_card_t * gus, int latches);
39
40 int snd_gus_use_inc(snd_gus_card_t * gus)
41 {
42 if (!try_module_get(gus->card->module))
43 return 0;
44 return 1;
45 }
46
47 void snd_gus_use_dec(snd_gus_card_t * gus)
48 {
49 module_put(gus->card->module);
50 }
51
52 static int snd_gus_joystick_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * 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(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
62 {
63 snd_gus_card_t *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(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
70 {
71 snd_gus_card_t *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 snd_kcontrol_new_t 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(snd_gus_card_t *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(snd_gus_card_t *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 if (gus->gf1.res_port1) {
117 release_resource(gus->gf1.res_port1);
118 kfree_nocheck(gus->gf1.res_port1);
119 }
120 if (gus->gf1.res_port2) {
121 release_resource(gus->gf1.res_port2);
122 kfree_nocheck(gus->gf1.res_port2);
123 }
124 if (gus->gf1.irq >= 0)
125 free_irq(gus->gf1.irq, (void *) gus);
126 if (gus->gf1.dma1 >= 0) {
127 disable_dma(gus->gf1.dma1);
128 free_dma(gus->gf1.dma1);
129 }
130 if (!gus->equal_dma && gus->gf1.dma2 >= 0) {
131 disable_dma(gus->gf1.dma2);
132 free_dma(gus->gf1.dma2);
133 }
134 kfree(gus);
135 return 0;
136 }
137
138 static int snd_gus_dev_free(snd_device_t *device)
139 {
140 snd_gus_card_t *gus = device->device_data;
141 return snd_gus_free(gus);
142 }
143
144 int snd_gus_create(snd_card_t * card,
145 unsigned long port,
146 int irq, int dma1, int dma2,
147 int timer_dev,
148 int voices,
149 int pcm_channels,
150 int effect,
151 snd_gus_card_t **rgus)
152 {
153 snd_gus_card_t *gus;
154 int err;
155 static snd_device_ops_t ops = {
156 .dev_free = snd_gus_dev_free,
157 };
158
159 *rgus = NULL;
160 gus = kcalloc(1, sizeof(*gus), GFP_KERNEL);
161 if (gus == NULL)
162 return -ENOMEM;
163 gus->gf1.irq = -1;
164 gus->gf1.dma1 = -1;
165 gus->gf1.dma2 = -1;
166 gus->card = card;
167 gus->gf1.port = port;
168 /* fill register variables for speedup */
169 gus->gf1.reg_page = GUSP(gus, GF1PAGE);
170 gus->gf1.reg_regsel = GUSP(gus, GF1REGSEL);
171 gus->gf1.reg_data8 = GUSP(gus, GF1DATAHIGH);
172 gus->gf1.reg_data16 = GUSP(gus, GF1DATALOW);
173 gus->gf1.reg_irqstat = GUSP(gus, IRQSTAT);
174 gus->gf1.reg_dram = GUSP(gus, DRAM);
175 gus->gf1.reg_timerctrl = GUSP(gus, TIMERCNTRL);
176 gus->gf1.reg_timerdata = GUSP(gus, TIMERDATA);
177 /* allocate resources */
178 if ((gus->gf1.res_port1 = request_region(port, 16, "GUS GF1 (Adlib/SB)")) == NULL) {
179 snd_printk(KERN_ERR "gus: can't grab SB port 0x%lx\n", port);
180 snd_gus_free(gus);
181 return -EBUSY;
182 }
183 if ((gus->gf1.res_port2 = request_region(port + 0x100, 12, "GUS GF1 (Synth)")) == NULL) {
184 snd_printk(KERN_ERR "gus: can't grab synth port 0x%lx\n", port + 0x100);
185 snd_gus_free(gus);
186 return -EBUSY;
187 }
188 if (irq >= 0 && request_irq(irq, snd_gus_interrupt, SA_INTERRUPT, "GUS GF1", (void *) gus)) {
189 snd_printk(KERN_ERR "gus: can't grab irq %d\n", irq);
190 snd_gus_free(gus);
191 return -EBUSY;
192 }
193 gus->gf1.irq = irq;
194 if (request_dma(dma1, "GUS - 1")) {
195 snd_printk(KERN_ERR "gus: can't grab DMA1 %d\n", dma1);
196 snd_gus_free(gus);
197 return -EBUSY;
198 }
199 gus->gf1.dma1 = dma1;
200 if (dma2 >= 0 && dma1 != dma2) {
201 if (request_dma(dma2, "GUS - 2")) {
202 snd_printk(KERN_ERR "gus: can't grab DMA2 %d\n", dma2);
203 snd_gus_free(gus);
204 return -EBUSY;
205 }
206 gus->gf1.dma2 = dma2;
207 } else {
208 gus->gf1.dma2 = gus->gf1.dma1;
209 gus->equal_dma = 1;
210 }
211 gus->timer_dev = timer_dev;
212 if (voices < 14)
213 voices = 14;
214 if (voices > 32)
215 voices = 32;
216 if (pcm_channels < 0)
217 pcm_channels = 0;
218 if (pcm_channels > 8)
219 pcm_channels = 8;
220 pcm_channels++;
221 pcm_channels &= ~1;
222 gus->gf1.effect = effect ? 1 : 0;
223 gus->gf1.active_voices = voices;
224 gus->gf1.pcm_channels = pcm_channels;
225 gus->gf1.volume_ramp = 25;
226 gus->gf1.smooth_pan = 1;
227 spin_lock_init(&gus->reg_lock);
228 spin_lock_init(&gus->voice_alloc);
229 spin_lock_init(&gus->active_voice_lock);
230 spin_lock_init(&gus->event_lock);
231 spin_lock_init(&gus->dma_lock);
232 spin_lock_init(&gus->pcm_volume_level_lock);
233 spin_lock_init(&gus->uart_cmd_lock);
234 init_MUTEX(&gus->dma_mutex);
235 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, gus, &ops)) < 0) {
236 snd_gus_free(gus);
237 return err;
238 }
239 *rgus = gus;
240 return 0;
241 }
242
243 /*
244 * Memory detection routine for plain GF1 soundcards
245 */
246
247 static int snd_gus_detect_memory(snd_gus_card_t * gus)
248 {
249 int l, idx, local;
250 unsigned char d;
251
252 snd_gf1_poke(gus, 0L, 0xaa);
253 snd_gf1_poke(gus, 1L, 0x55);
254 if (snd_gf1_peek(gus, 0L) != 0xaa || snd_gf1_peek(gus, 1L) != 0x55) {
255 snd_printk("plain GF1 card at 0x%lx without onboard DRAM?\n", gus->gf1.port);
256 return -ENOMEM;
257 }
258 for (idx = 1, d = 0xab; idx < 4; idx++, d++) {
259 local = idx << 18;
260 snd_gf1_poke(gus, local, d);
261 snd_gf1_poke(gus, local + 1, d + 1);
262 if (snd_gf1_peek(gus, local) != d ||
263 snd_gf1_peek(gus, local + 1) != d + 1 ||
264 snd_gf1_peek(gus, 0L) != 0xaa)
265 break;
266 }
267 #if 1
268 gus->gf1.memory = idx << 18;
269 #else
270 gus->gf1.memory = 256 * 1024;
271 #endif
272 for (l = 0, local = gus->gf1.memory; l < 4; l++, local -= 256 * 1024) {
273 gus->gf1.mem_alloc.banks_8[l].address =
274 gus->gf1.mem_alloc.banks_8[l].size = 0;
275 gus->gf1.mem_alloc.banks_16[l].address = l << 18;
276 gus->gf1.mem_alloc.banks_16[l].size = local > 0 ? 256 * 1024 : 0;
277 }
278 gus->gf1.mem_alloc.banks_8[0].size = gus->gf1.memory;
279 return 0; /* some memory were detected */
280 }
281
282 static int snd_gus_init_dma_irq(snd_gus_card_t * gus, int latches)
283 {
284 snd_card_t *card;
285 unsigned long flags;
286 int irq, dma1, dma2;
287 static unsigned char irqs[16] =
288 {0, 0, 1, 3, 0, 2, 0, 4, 0, 1, 0, 5, 6, 0, 0, 7};
289 static unsigned char dmas[8] =
290 {6, 1, 0, 2, 0, 3, 4, 5};
291
292 snd_assert(gus != NULL, return -EINVAL);
293 card = gus->card;
294 snd_assert(card != NULL, return -EINVAL);
295
296 gus->mix_cntrl_reg &= 0xf8;
297 gus->mix_cntrl_reg |= 0x01; /* disable MIC, LINE IN, enable LINE OUT */
298 if (gus->codec_flag || gus->ess_flag) {
299 gus->mix_cntrl_reg &= ~1; /* enable LINE IN */
300 gus->mix_cntrl_reg |= 4; /* enable MIC */
301 }
302 dma1 = gus->gf1.dma1;
303 dma1 = dma1 < 0 ? -dma1 : dma1;
304 dma1 = dmas[dma1 & 7];
305 dma2 = gus->gf1.dma2;
306 dma2 = dma2 < 0 ? -dma2 : dma2;
307 dma2 = dmas[dma2 & 7];
308 #if 0
309 printk("dma1 = %i, dma2 = %i\n", gus->gf1.dma1, gus->gf1.dma2);
310 #endif
311 dma1 |= gus->equal_dma ? 0x40 : (dma2 << 3);
312
313 if ((dma1 & 7) == 0 || (dma2 & 7) == 0) {
314 snd_printk("Error! DMA isn't defined.\n");
315 return -EINVAL;
316 }
317 irq = gus->gf1.irq;
318 irq = irq < 0 ? -irq : irq;
319 irq = irqs[irq & 0x0f];
320 if (irq == 0) {
321 snd_printk("Error! IRQ isn't defined.\n");
322 return -EINVAL;
323 }
324 irq |= 0x40;
325 #if 0
326 card->mixer.mix_ctrl_reg |= 0x10;
327 #endif
328
329 spin_lock_irqsave(&gus->reg_lock, flags);
330 outb(5, GUSP(gus, REGCNTRLS));
331 outb(gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
332 outb(0x00, GUSP(gus, IRQDMACNTRLREG));
333 outb(0, GUSP(gus, REGCNTRLS));
334 spin_unlock_irqrestore(&gus->reg_lock, flags);
335
336 udelay(100);
337
338 spin_lock_irqsave(&gus->reg_lock, flags);
339 outb(0x00 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
340 outb(dma1, GUSP(gus, IRQDMACNTRLREG));
341 if (latches) {
342 outb(0x40 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
343 outb(irq, GUSP(gus, IRQDMACNTRLREG));
344 }
345 spin_unlock_irqrestore(&gus->reg_lock, flags);
346
347 udelay(100);
348
349 spin_lock_irqsave(&gus->reg_lock, flags);
350 outb(0x00 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
351 outb(dma1, GUSP(gus, IRQDMACNTRLREG));
352 if (latches) {
353 outb(0x40 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
354 outb(irq, GUSP(gus, IRQDMACNTRLREG));
355 }
356 spin_unlock_irqrestore(&gus->reg_lock, flags);
357
358 snd_gf1_delay(gus);
359
360 if (latches)
361 gus->mix_cntrl_reg |= 0x08; /* enable latches */
362 else
363 gus->mix_cntrl_reg &= ~0x08; /* disable latches */
364 spin_lock_irqsave(&gus->reg_lock, flags);
365 outb(gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
366 outb(0, GUSP(gus, GF1PAGE));
367 spin_unlock_irqrestore(&gus->reg_lock, flags);
368
369 return 0;
370 }
371
372 static int snd_gus_check_version(snd_gus_card_t * gus)
373 {
374 unsigned long flags;
375 unsigned char val, rev;
376 snd_card_t *card;
377
378 card = gus->card;
379 spin_lock_irqsave(&gus->reg_lock, flags);
380 outb(0x20, GUSP(gus, REGCNTRLS));
381 val = inb(GUSP(gus, REGCNTRLS));
382 rev = inb(GUSP(gus, BOARDVERSION));
383 spin_unlock_irqrestore(&gus->reg_lock, flags);
384 snd_printdd("GF1 [0x%lx] init - val = 0x%x, rev = 0x%x\n", gus->gf1.port, val, rev);
385 strcpy(card->driver, "GUS");
386 strcpy(card->longname, "Gravis UltraSound Classic (2.4)");
387 if ((val != 255 && (val & 0x06)) || (rev >= 5 && rev != 255)) {
388 if (rev >= 5 && rev <= 9) {
389 gus->ics_flag = 1;
390 if (rev == 5)
391 gus->ics_flipped = 1;
392 card->longname[27] = '3';
393 card->longname[29] = rev == 5 ? '5' : '7';
394 }
395 if (rev >= 10 && rev != 255) {
396 if (rev >= 10 && rev <= 11) {
397 strcpy(card->driver, "GUS MAX");
398 strcpy(card->longname, "Gravis UltraSound MAX");
399 gus->max_flag = 1;
400 } else if (rev == 0x30) {
401 strcpy(card->driver, "GUS ACE");
402 strcpy(card->longname, "Gravis UltraSound Ace");
403 gus->ace_flag = 1;
404 } else if (rev == 0x50) {
405 strcpy(card->driver, "GUS Extreme");
406 strcpy(card->longname, "Gravis UltraSound Extreme");
407 gus->ess_flag = 1;
408 } else {
409 snd_printk("unknown GF1 revision number at 0x%lx - 0x%x (0x%x)\n", gus->gf1.port, rev, val);
410 snd_printk(" please - report to <perex@suse.cz>\n");
411 }
412 }
413 }
414 strcpy(card->shortname, card->longname);
415 gus->uart_enable = 1; /* standard GUSes doesn't have midi uart trouble */
416 snd_gus_init_control(gus);
417 return 0;
418 }
419
420 static void snd_gus_seq_dev_free(snd_seq_device_t *seq_dev)
421 {
422 snd_gus_card_t *gus = seq_dev->private_data;
423 gus->seq_dev = NULL;
424 }
425
426 int snd_gus_initialize(snd_gus_card_t *gus)
427 {
428 int err;
429
430 if (!gus->interwave) {
431 if ((err = snd_gus_check_version(gus)) < 0) {
432 snd_printk("version check failed\n");
433 return err;
434 }
435 if ((err = snd_gus_detect_memory(gus)) < 0)
436 return err;
437 }
438 if ((err = snd_gus_init_dma_irq(gus, 1)) < 0)
439 return err;
440 #if defined(CONFIG_SND_SEQUENCER) || (defined(MODULE) && defined(CONFIG_SND_SEQUENCER_MODULE))
441 if (snd_seq_device_new(gus->card, 1, SNDRV_SEQ_DEV_ID_GUS,
442 sizeof(snd_gus_card_t*), &gus->seq_dev) >= 0) {
443 strcpy(gus->seq_dev->name, "GUS");
444 *(snd_gus_card_t**)SNDRV_SEQ_DEVICE_ARGPTR(gus->seq_dev) = gus;
445 gus->seq_dev->private_data = gus;
446 gus->seq_dev->private_free = snd_gus_seq_dev_free;
447 }
448 #endif
449 snd_gf1_start(gus);
450 gus->initialized = 1;
451 return 0;
452 }
453
454 /* gus_io.c */
455 EXPORT_SYMBOL(snd_gf1_delay);
456 EXPORT_SYMBOL(snd_gf1_write8);
457 EXPORT_SYMBOL(snd_gf1_look8);
458 EXPORT_SYMBOL(snd_gf1_write16);
459 EXPORT_SYMBOL(snd_gf1_look16);
460 EXPORT_SYMBOL(snd_gf1_i_write8);
461 EXPORT_SYMBOL(snd_gf1_i_look8);
462 EXPORT_SYMBOL(snd_gf1_i_write16);
463 EXPORT_SYMBOL(snd_gf1_i_look16);
464 EXPORT_SYMBOL(snd_gf1_dram_addr);
465 EXPORT_SYMBOL(snd_gf1_write_addr);
466 EXPORT_SYMBOL(snd_gf1_poke);
467 EXPORT_SYMBOL(snd_gf1_peek);
468 /* gus_reset.c */
469 EXPORT_SYMBOL(snd_gf1_alloc_voice);
470 EXPORT_SYMBOL(snd_gf1_free_voice);
471 EXPORT_SYMBOL(snd_gf1_ctrl_stop);
472 EXPORT_SYMBOL(snd_gf1_stop_voice);
473 EXPORT_SYMBOL(snd_gf1_start);
474 EXPORT_SYMBOL(snd_gf1_stop);
475 /* gus_mixer.c */
476 EXPORT_SYMBOL(snd_gf1_new_mixer);
477 /* gus_pcm.c */
478 EXPORT_SYMBOL(snd_gf1_pcm_new);
479 /* gus.c */
480 EXPORT_SYMBOL(snd_gus_use_inc);
481 EXPORT_SYMBOL(snd_gus_use_dec);
482 EXPORT_SYMBOL(snd_gus_create);
483 EXPORT_SYMBOL(snd_gus_initialize);
484 /* gus_irq.c */
485 EXPORT_SYMBOL(snd_gus_interrupt);
486 /* gus_uart.c */
487 EXPORT_SYMBOL(snd_gf1_rawmidi_new);
488 /* gus_dram.c */
489 EXPORT_SYMBOL(snd_gus_dram_write);
490 EXPORT_SYMBOL(snd_gus_dram_read);
491 /* gus_volume.c */
492 EXPORT_SYMBOL(snd_gf1_lvol_to_gvol_raw);
493 EXPORT_SYMBOL(snd_gf1_translate_freq);
494 /* gus_mem.c */
495 EXPORT_SYMBOL(snd_gf1_mem_alloc);
496 EXPORT_SYMBOL(snd_gf1_mem_xfree);
497 EXPORT_SYMBOL(snd_gf1_mem_free);
498 EXPORT_SYMBOL(snd_gf1_mem_lock);
499
500 /*
501 * INIT part
502 */
503
504 static int __init alsa_gus_init(void)
505 {
506 return 0;
507 }
508
509 static void __exit alsa_gus_exit(void)
510 {
511 }
512
513 module_init(alsa_gus_init)
514 module_exit(alsa_gus_exit)
Linux with added FPC-III support