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writeback: split writeback_inodes_wb
[linux-2.6/next.git] / sound / isa / gus / gus_main.c
blob12eb98f2f931e123c583419134064c1fb7004e33
1 /*
2 * Routines for Gravis UltraSound soundcards
3 * Copyright (c) by Jaroslav Kysela <perex@perex.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 <linux/init.h>
23 #include <linux/interrupt.h>
24 #include <linux/delay.h>
25 #include <linux/slab.h>
26 #include <linux/ioport.h>
27 #include <sound/core.h>
28 #include <sound/gus.h>
29 #include <sound/control.h>
30
31 #include <asm/dma.h>
32
33 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
34 MODULE_DESCRIPTION("Routines for Gravis UltraSound soundcards");
35 MODULE_LICENSE("GPL");
36
37 static int snd_gus_init_dma_irq(struct snd_gus_card * gus, int latches);
38
39 int snd_gus_use_inc(struct snd_gus_card * gus)
40 {
41 if (!try_module_get(gus->card->module))
42 return 0;
43 return 1;
44 }
45
46 void snd_gus_use_dec(struct snd_gus_card * gus)
47 {
48 module_put(gus->card->module);
49 }
50
51 static int snd_gus_joystick_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
52 {
53 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
54 uinfo->count = 1;
55 uinfo->value.integer.min = 0;
56 uinfo->value.integer.max = 31;
57 return 0;
58 }
59
60 static int snd_gus_joystick_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
61 {
62 struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
63
64 ucontrol->value.integer.value[0] = gus->joystick_dac & 31;
65 return 0;
66 }
67
68 static int snd_gus_joystick_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
69 {
70 struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
71 unsigned long flags;
72 int change;
73 unsigned char nval;
74
75 nval = ucontrol->value.integer.value[0] & 31;
76 spin_lock_irqsave(&gus->reg_lock, flags);
77 change = gus->joystick_dac != nval;
78 gus->joystick_dac = nval;
79 snd_gf1_write8(gus, SNDRV_GF1_GB_JOYSTICK_DAC_LEVEL, gus->joystick_dac);
80 spin_unlock_irqrestore(&gus->reg_lock, flags);
81 return change;
82 }
83
84 static struct snd_kcontrol_new snd_gus_joystick_control = {
85 .iface = SNDRV_CTL_ELEM_IFACE_CARD,
86 .name = "Joystick Speed",
87 .info = snd_gus_joystick_info,
88 .get = snd_gus_joystick_get,
89 .put = snd_gus_joystick_put
90 };
91
92 static void snd_gus_init_control(struct snd_gus_card *gus)
93 {
94 if (!gus->ace_flag)
95 snd_ctl_add(gus->card, snd_ctl_new1(&snd_gus_joystick_control, gus));
96 }
97
98 /*
99 *
100 */
101
102 static int snd_gus_free(struct snd_gus_card *gus)
103 {
104 if (gus->gf1.res_port2 == NULL)
105 goto __hw_end;
106 snd_gf1_stop(gus);
107 snd_gus_init_dma_irq(gus, 0);
108 __hw_end:
109 release_and_free_resource(gus->gf1.res_port1);
110 release_and_free_resource(gus->gf1.res_port2);
111 if (gus->gf1.irq >= 0)
112 free_irq(gus->gf1.irq, (void *) gus);
113 if (gus->gf1.dma1 >= 0) {
114 disable_dma(gus->gf1.dma1);
115 free_dma(gus->gf1.dma1);
116 }
117 if (!gus->equal_dma && gus->gf1.dma2 >= 0) {
118 disable_dma(gus->gf1.dma2);
119 free_dma(gus->gf1.dma2);
120 }
121 kfree(gus);
122 return 0;
123 }
124
125 static int snd_gus_dev_free(struct snd_device *device)
126 {
127 struct snd_gus_card *gus = device->device_data;
128 return snd_gus_free(gus);
129 }
130
131 int snd_gus_create(struct snd_card *card,
132 unsigned long port,
133 int irq, int dma1, int dma2,
134 int timer_dev,
135 int voices,
136 int pcm_channels,
137 int effect,
138 struct snd_gus_card **rgus)
139 {
140 struct snd_gus_card *gus;
141 int err;
142 static struct snd_device_ops ops = {
143 .dev_free = snd_gus_dev_free,
144 };
145
146 *rgus = NULL;
147 gus = kzalloc(sizeof(*gus), GFP_KERNEL);
148 if (gus == NULL)
149 return -ENOMEM;
150 spin_lock_init(&gus->reg_lock);
151 spin_lock_init(&gus->voice_alloc);
152 spin_lock_init(&gus->active_voice_lock);
153 spin_lock_init(&gus->event_lock);
154 spin_lock_init(&gus->dma_lock);
155 spin_lock_init(&gus->pcm_volume_level_lock);
156 spin_lock_init(&gus->uart_cmd_lock);
157 mutex_init(&gus->dma_mutex);
158 gus->gf1.irq = -1;
159 gus->gf1.dma1 = -1;
160 gus->gf1.dma2 = -1;
161 gus->card = card;
162 gus->gf1.port = port;
163 /* fill register variables for speedup */
164 gus->gf1.reg_page = GUSP(gus, GF1PAGE);
165 gus->gf1.reg_regsel = GUSP(gus, GF1REGSEL);
166 gus->gf1.reg_data8 = GUSP(gus, GF1DATAHIGH);
167 gus->gf1.reg_data16 = GUSP(gus, GF1DATALOW);
168 gus->gf1.reg_irqstat = GUSP(gus, IRQSTAT);
169 gus->gf1.reg_dram = GUSP(gus, DRAM);
170 gus->gf1.reg_timerctrl = GUSP(gus, TIMERCNTRL);
171 gus->gf1.reg_timerdata = GUSP(gus, TIMERDATA);
172 /* allocate resources */
173 if ((gus->gf1.res_port1 = request_region(port, 16, "GUS GF1 (Adlib/SB)")) == NULL) {
174 snd_printk(KERN_ERR "gus: can't grab SB port 0x%lx\n", port);
175 snd_gus_free(gus);
176 return -EBUSY;
177 }
178 if ((gus->gf1.res_port2 = request_region(port + 0x100, 12, "GUS GF1 (Synth)")) == NULL) {
179 snd_printk(KERN_ERR "gus: can't grab synth port 0x%lx\n", port + 0x100);
180 snd_gus_free(gus);
181 return -EBUSY;
182 }
183 if (irq >= 0 && request_irq(irq, snd_gus_interrupt, IRQF_DISABLED, "GUS GF1", (void *) gus)) {
184 snd_printk(KERN_ERR "gus: can't grab irq %d\n", irq);
185 snd_gus_free(gus);
186 return -EBUSY;
187 }
188 gus->gf1.irq = irq;
189 if (request_dma(dma1, "GUS - 1")) {
190 snd_printk(KERN_ERR "gus: can't grab DMA1 %d\n", dma1);
191 snd_gus_free(gus);
192 return -EBUSY;
193 }
194 gus->gf1.dma1 = dma1;
195 if (dma2 >= 0 && dma1 != dma2) {
196 if (request_dma(dma2, "GUS - 2")) {
197 snd_printk(KERN_ERR "gus: can't grab DMA2 %d\n", dma2);
198 snd_gus_free(gus);
199 return -EBUSY;
200 }
201 gus->gf1.dma2 = dma2;
202 } else {
203 gus->gf1.dma2 = gus->gf1.dma1;
204 gus->equal_dma = 1;
205 }
206 gus->timer_dev = timer_dev;
207 if (voices < 14)
208 voices = 14;
209 if (voices > 32)
210 voices = 32;
211 if (pcm_channels < 0)
212 pcm_channels = 0;
213 if (pcm_channels > 8)
214 pcm_channels = 8;
215 pcm_channels++;
216 pcm_channels &= ~1;
217 gus->gf1.effect = effect ? 1 : 0;
218 gus->gf1.active_voices = voices;
219 gus->gf1.pcm_channels = pcm_channels;
220 gus->gf1.volume_ramp = 25;
221 gus->gf1.smooth_pan = 1;
222 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, gus, &ops)) < 0) {
223 snd_gus_free(gus);
224 return err;
225 }
226 *rgus = gus;
227 return 0;
228 }
229
230 /*
231 * Memory detection routine for plain GF1 soundcards
232 */
233
234 static int snd_gus_detect_memory(struct snd_gus_card * gus)
235 {
236 int l, idx, local;
237 unsigned char d;
238
239 snd_gf1_poke(gus, 0L, 0xaa);
240 snd_gf1_poke(gus, 1L, 0x55);
241 if (snd_gf1_peek(gus, 0L) != 0xaa || snd_gf1_peek(gus, 1L) != 0x55) {
242 snd_printk(KERN_ERR "plain GF1 card at 0x%lx without onboard DRAM?\n", gus->gf1.port);
243 return -ENOMEM;
244 }
245 for (idx = 1, d = 0xab; idx < 4; idx++, d++) {
246 local = idx << 18;
247 snd_gf1_poke(gus, local, d);
248 snd_gf1_poke(gus, local + 1, d + 1);
249 if (snd_gf1_peek(gus, local) != d ||
250 snd_gf1_peek(gus, local + 1) != d + 1 ||
251 snd_gf1_peek(gus, 0L) != 0xaa)
252 break;
253 }
254 #if 1
255 gus->gf1.memory = idx << 18;
256 #else
257 gus->gf1.memory = 256 * 1024;
258 #endif
259 for (l = 0, local = gus->gf1.memory; l < 4; l++, local -= 256 * 1024) {
260 gus->gf1.mem_alloc.banks_8[l].address =
261 gus->gf1.mem_alloc.banks_8[l].size = 0;
262 gus->gf1.mem_alloc.banks_16[l].address = l << 18;
263 gus->gf1.mem_alloc.banks_16[l].size = local > 0 ? 256 * 1024 : 0;
264 }
265 gus->gf1.mem_alloc.banks_8[0].size = gus->gf1.memory;
266 return 0; /* some memory were detected */
267 }
268
269 static int snd_gus_init_dma_irq(struct snd_gus_card * gus, int latches)
270 {
271 struct snd_card *card;
272 unsigned long flags;
273 int irq, dma1, dma2;
274 static unsigned char irqs[16] =
275 {0, 0, 1, 3, 0, 2, 0, 4, 0, 1, 0, 5, 6, 0, 0, 7};
276 static unsigned char dmas[8] =
277 {6, 1, 0, 2, 0, 3, 4, 5};
278
279 if (snd_BUG_ON(!gus))
280 return -EINVAL;
281 card = gus->card;
282 if (snd_BUG_ON(!card))
283 return -EINVAL;
284
285 gus->mix_cntrl_reg &= 0xf8;
286 gus->mix_cntrl_reg |= 0x01; /* disable MIC, LINE IN, enable LINE OUT */
287 if (gus->codec_flag || gus->ess_flag) {
288 gus->mix_cntrl_reg &= ~1; /* enable LINE IN */
289 gus->mix_cntrl_reg |= 4; /* enable MIC */
290 }
291 dma1 = gus->gf1.dma1;
292 dma1 = abs(dma1);
293 dma1 = dmas[dma1 & 7];
294 dma2 = gus->gf1.dma2;
295 dma2 = abs(dma2);
296 dma2 = dmas[dma2 & 7];
297 dma1 |= gus->equal_dma ? 0x40 : (dma2 << 3);
298
299 if ((dma1 & 7) == 0 || (dma2 & 7) == 0) {
300 snd_printk(KERN_ERR "Error! DMA isn't defined.\n");
301 return -EINVAL;
302 }
303 irq = gus->gf1.irq;
304 irq = abs(irq);
305 irq = irqs[irq & 0x0f];
306 if (irq == 0) {
307 snd_printk(KERN_ERR "Error! IRQ isn't defined.\n");
308 return -EINVAL;
309 }
310 irq |= 0x40;
311 #if 0
312 card->mixer.mix_ctrl_reg |= 0x10;
313 #endif
314
315 spin_lock_irqsave(&gus->reg_lock, flags);
316 outb(5, GUSP(gus, REGCNTRLS));
317 outb(gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
318 outb(0x00, GUSP(gus, IRQDMACNTRLREG));
319 outb(0, GUSP(gus, REGCNTRLS));
320 spin_unlock_irqrestore(&gus->reg_lock, flags);
321
322 udelay(100);
323
324 spin_lock_irqsave(&gus->reg_lock, flags);
325 outb(0x00 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
326 outb(dma1, GUSP(gus, IRQDMACNTRLREG));
327 if (latches) {
328 outb(0x40 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
329 outb(irq, GUSP(gus, IRQDMACNTRLREG));
330 }
331 spin_unlock_irqrestore(&gus->reg_lock, flags);
332
333 udelay(100);
334
335 spin_lock_irqsave(&gus->reg_lock, flags);
336 outb(0x00 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
337 outb(dma1, GUSP(gus, IRQDMACNTRLREG));
338 if (latches) {
339 outb(0x40 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
340 outb(irq, GUSP(gus, IRQDMACNTRLREG));
341 }
342 spin_unlock_irqrestore(&gus->reg_lock, flags);
343
344 snd_gf1_delay(gus);
345
346 if (latches)
347 gus->mix_cntrl_reg |= 0x08; /* enable latches */
348 else
349 gus->mix_cntrl_reg &= ~0x08; /* disable latches */
350 spin_lock_irqsave(&gus->reg_lock, flags);
351 outb(gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
352 outb(0, GUSP(gus, GF1PAGE));
353 spin_unlock_irqrestore(&gus->reg_lock, flags);
354
355 return 0;
356 }
357
358 static int snd_gus_check_version(struct snd_gus_card * gus)
359 {
360 unsigned long flags;
361 unsigned char val, rev;
362 struct snd_card *card;
363
364 card = gus->card;
365 spin_lock_irqsave(&gus->reg_lock, flags);
366 outb(0x20, GUSP(gus, REGCNTRLS));
367 val = inb(GUSP(gus, REGCNTRLS));
368 rev = inb(GUSP(gus, BOARDVERSION));
369 spin_unlock_irqrestore(&gus->reg_lock, flags);
370 snd_printdd("GF1 [0x%lx] init - val = 0x%x, rev = 0x%x\n", gus->gf1.port, val, rev);
371 strcpy(card->driver, "GUS");
372 strcpy(card->longname, "Gravis UltraSound Classic (2.4)");
373 if ((val != 255 && (val & 0x06)) || (rev >= 5 && rev != 255)) {
374 if (rev >= 5 && rev <= 9) {
375 gus->ics_flag = 1;
376 if (rev == 5)
377 gus->ics_flipped = 1;
378 card->longname[27] = '3';
379 card->longname[29] = rev == 5 ? '5' : '7';
380 }
381 if (rev >= 10 && rev != 255) {
382 if (rev >= 10 && rev <= 11) {
383 strcpy(card->driver, "GUS MAX");
384 strcpy(card->longname, "Gravis UltraSound MAX");
385 gus->max_flag = 1;
386 } else if (rev == 0x30) {
387 strcpy(card->driver, "GUS ACE");
388 strcpy(card->longname, "Gravis UltraSound Ace");
389 gus->ace_flag = 1;
390 } else if (rev == 0x50) {
391 strcpy(card->driver, "GUS Extreme");
392 strcpy(card->longname, "Gravis UltraSound Extreme");
393 gus->ess_flag = 1;
394 } else {
395 snd_printk(KERN_ERR "unknown GF1 revision number at 0x%lx - 0x%x (0x%x)\n", gus->gf1.port, rev, val);
396 snd_printk(KERN_ERR " please - report to <perex@perex.cz>\n");
397 }
398 }
399 }
400 strcpy(card->shortname, card->longname);
401 gus->uart_enable = 1; /* standard GUSes doesn't have midi uart trouble */
402 snd_gus_init_control(gus);
403 return 0;
404 }
405
406 int snd_gus_initialize(struct snd_gus_card *gus)
407 {
408 int err;
409
410 if (!gus->interwave) {
411 if ((err = snd_gus_check_version(gus)) < 0) {
412 snd_printk(KERN_ERR "version check failed\n");
413 return err;
414 }
415 if ((err = snd_gus_detect_memory(gus)) < 0)
416 return err;
417 }
418 if ((err = snd_gus_init_dma_irq(gus, 1)) < 0)
419 return err;
420 snd_gf1_start(gus);
421 gus->initialized = 1;
422 return 0;
423 }
424
425 /* gus_io.c */
426 EXPORT_SYMBOL(snd_gf1_delay);
427 EXPORT_SYMBOL(snd_gf1_write8);
428 EXPORT_SYMBOL(snd_gf1_look8);
429 EXPORT_SYMBOL(snd_gf1_write16);
430 EXPORT_SYMBOL(snd_gf1_look16);
431 EXPORT_SYMBOL(snd_gf1_i_write8);
432 EXPORT_SYMBOL(snd_gf1_i_look8);
433 EXPORT_SYMBOL(snd_gf1_i_look16);
434 EXPORT_SYMBOL(snd_gf1_dram_addr);
435 EXPORT_SYMBOL(snd_gf1_write_addr);
436 EXPORT_SYMBOL(snd_gf1_poke);
437 EXPORT_SYMBOL(snd_gf1_peek);
438 /* gus_reset.c */
439 EXPORT_SYMBOL(snd_gf1_alloc_voice);
440 EXPORT_SYMBOL(snd_gf1_free_voice);
441 EXPORT_SYMBOL(snd_gf1_ctrl_stop);
442 EXPORT_SYMBOL(snd_gf1_stop_voice);
443 /* gus_mixer.c */
444 EXPORT_SYMBOL(snd_gf1_new_mixer);
445 /* gus_pcm.c */
446 EXPORT_SYMBOL(snd_gf1_pcm_new);
447 /* gus.c */
448 EXPORT_SYMBOL(snd_gus_use_inc);
449 EXPORT_SYMBOL(snd_gus_use_dec);
450 EXPORT_SYMBOL(snd_gus_create);
451 EXPORT_SYMBOL(snd_gus_initialize);
452 /* gus_irq.c */
453 EXPORT_SYMBOL(snd_gus_interrupt);
454 /* gus_uart.c */
455 EXPORT_SYMBOL(snd_gf1_rawmidi_new);
456 /* gus_dram.c */
457 EXPORT_SYMBOL(snd_gus_dram_write);
458 EXPORT_SYMBOL(snd_gus_dram_read);
459 /* gus_volume.c */
460 EXPORT_SYMBOL(snd_gf1_lvol_to_gvol_raw);
461 EXPORT_SYMBOL(snd_gf1_translate_freq);
462 /* gus_mem.c */
463 EXPORT_SYMBOL(snd_gf1_mem_alloc);
464 EXPORT_SYMBOL(snd_gf1_mem_xfree);
465 EXPORT_SYMBOL(snd_gf1_mem_free);
466 EXPORT_SYMBOL(snd_gf1_mem_lock);
467
468 /*
469 * INIT part
470 */
471
472 static int __init alsa_gus_init(void)
473 {
474 return 0;
475 }
476
477 static void __exit alsa_gus_exit(void)
478 {
479 }
480
481 module_init(alsa_gus_init)
482 module_exit(alsa_gus_exit)
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