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