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gus_main.c
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1 /*
2  * Routines for Gravis UltraSound soundcards
3  * Copyright (c) by Jaroslav Kysela <[email protected]>
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 <[email protected]>");
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 {
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;
81  spin_unlock_irqrestore(&gus->reg_lock, flags);
82  return change;
83 }
84 
85 static struct snd_kcontrol_new snd_gus_joystick_control = {
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  snd_gf1_stop(gus);
108  snd_gus_init_dma_irq(gus, 0);
109  __hw_end:
110  release_and_free_resource(gus->gf1.res_port1);
111  release_and_free_resource(gus->gf1.res_port2);
112  if (gus->gf1.irq >= 0)
113  free_irq(gus->gf1.irq, (void *) gus);
114  if (gus->gf1.dma1 >= 0) {
115  disable_dma(gus->gf1.dma1);
116  free_dma(gus->gf1.dma1);
117  }
118  if (!gus->equal_dma && gus->gf1.dma2 >= 0) {
119  disable_dma(gus->gf1.dma2);
120  free_dma(gus->gf1.dma2);
121  }
122  kfree(gus);
123  return 0;
124 }
125 
126 static int snd_gus_dev_free(struct snd_device *device)
127 {
128  struct snd_gus_card *gus = device->device_data;
129  return snd_gus_free(gus);
130 }
131 
133  unsigned long port,
134  int irq, int dma1, int dma2,
135  int timer_dev,
136  int voices,
137  int pcm_channels,
138  int effect,
139  struct snd_gus_card **rgus)
140 {
141  struct snd_gus_card *gus;
142  int err;
143  static struct snd_device_ops ops = {
144  .dev_free = snd_gus_dev_free,
145  };
146 
147  *rgus = NULL;
148  gus = kzalloc(sizeof(*gus), GFP_KERNEL);
149  if (gus == NULL)
150  return -ENOMEM;
151  spin_lock_init(&gus->reg_lock);
154  spin_lock_init(&gus->event_lock);
155  spin_lock_init(&gus->dma_lock);
158  mutex_init(&gus->dma_mutex);
159  gus->gf1.irq = -1;
160  gus->gf1.dma1 = -1;
161  gus->gf1.dma2 = -1;
162  gus->card = card;
163  gus->gf1.port = port;
164  /* fill register variables for speedup */
165  gus->gf1.reg_page = GUSP(gus, GF1PAGE);
166  gus->gf1.reg_regsel = GUSP(gus, GF1REGSEL);
167  gus->gf1.reg_data8 = GUSP(gus, GF1DATAHIGH);
168  gus->gf1.reg_data16 = GUSP(gus, GF1DATALOW);
169  gus->gf1.reg_irqstat = GUSP(gus, IRQSTAT);
170  gus->gf1.reg_dram = GUSP(gus, DRAM);
171  gus->gf1.reg_timerctrl = GUSP(gus, TIMERCNTRL);
172  gus->gf1.reg_timerdata = GUSP(gus, TIMERDATA);
173  /* allocate resources */
174  if ((gus->gf1.res_port1 = request_region(port, 16, "GUS GF1 (Adlib/SB)")) == NULL) {
175  snd_printk(KERN_ERR "gus: can't grab SB port 0x%lx\n", port);
176  snd_gus_free(gus);
177  return -EBUSY;
178  }
179  if ((gus->gf1.res_port2 = request_region(port + 0x100, 12, "GUS GF1 (Synth)")) == NULL) {
180  snd_printk(KERN_ERR "gus: can't grab synth port 0x%lx\n", port + 0x100);
181  snd_gus_free(gus);
182  return -EBUSY;
183  }
184  if (irq >= 0 && request_irq(irq, snd_gus_interrupt, 0, "GUS GF1", (void *) gus)) {
185  snd_printk(KERN_ERR "gus: can't grab irq %d\n", irq);
186  snd_gus_free(gus);
187  return -EBUSY;
188  }
189  gus->gf1.irq = irq;
190  if (request_dma(dma1, "GUS - 1")) {
191  snd_printk(KERN_ERR "gus: can't grab DMA1 %d\n", dma1);
192  snd_gus_free(gus);
193  return -EBUSY;
194  }
195  gus->gf1.dma1 = dma1;
196  if (dma2 >= 0 && dma1 != dma2) {
197  if (request_dma(dma2, "GUS - 2")) {
198  snd_printk(KERN_ERR "gus: can't grab DMA2 %d\n", dma2);
199  snd_gus_free(gus);
200  return -EBUSY;
201  }
202  gus->gf1.dma2 = dma2;
203  } else {
204  gus->gf1.dma2 = gus->gf1.dma1;
205  gus->equal_dma = 1;
206  }
207  gus->timer_dev = timer_dev;
208  if (voices < 14)
209  voices = 14;
210  if (voices > 32)
211  voices = 32;
212  if (pcm_channels < 0)
213  pcm_channels = 0;
214  if (pcm_channels > 8)
215  pcm_channels = 8;
216  pcm_channels++;
217  pcm_channels &= ~1;
218  gus->gf1.effect = effect ? 1 : 0;
219  gus->gf1.active_voices = voices;
220  gus->gf1.pcm_channels = pcm_channels;
221  gus->gf1.volume_ramp = 25;
222  gus->gf1.smooth_pan = 1;
223  if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, gus, &ops)) < 0) {
224  snd_gus_free(gus);
225  return err;
226  }
227  *rgus = gus;
228  return 0;
229 }
230 
231 /*
232  * Memory detection routine for plain GF1 soundcards
233  */
234 
235 static int snd_gus_detect_memory(struct snd_gus_card * gus)
236 {
237  int l, idx, local;
238  unsigned char d;
239 
240  snd_gf1_poke(gus, 0L, 0xaa);
241  snd_gf1_poke(gus, 1L, 0x55);
242  if (snd_gf1_peek(gus, 0L) != 0xaa || snd_gf1_peek(gus, 1L) != 0x55) {
243  snd_printk(KERN_ERR "plain GF1 card at 0x%lx without onboard DRAM?\n", gus->gf1.port);
244  return -ENOMEM;
245  }
246  for (idx = 1, d = 0xab; idx < 4; idx++, d++) {
247  local = idx << 18;
248  snd_gf1_poke(gus, local, d);
249  snd_gf1_poke(gus, local + 1, d + 1);
250  if (snd_gf1_peek(gus, local) != d ||
251  snd_gf1_peek(gus, local + 1) != d + 1 ||
252  snd_gf1_peek(gus, 0L) != 0xaa)
253  break;
254  }
255 #if 1
256  gus->gf1.memory = idx << 18;
257 #else
258  gus->gf1.memory = 256 * 1024;
259 #endif
260  for (l = 0, local = gus->gf1.memory; l < 4; l++, local -= 256 * 1024) {
261  gus->gf1.mem_alloc.banks_8[l].address =
262  gus->gf1.mem_alloc.banks_8[l].size = 0;
263  gus->gf1.mem_alloc.banks_16[l].address = l << 18;
264  gus->gf1.mem_alloc.banks_16[l].size = local > 0 ? 256 * 1024 : 0;
265  }
266  gus->gf1.mem_alloc.banks_8[0].size = gus->gf1.memory;
267  return 0; /* some memory were detected */
268 }
269 
270 static int snd_gus_init_dma_irq(struct snd_gus_card * gus, int latches)
271 {
272  struct snd_card *card;
273  unsigned long flags;
274  int irq, dma1, dma2;
275  static unsigned char irqs[16] =
276  {0, 0, 1, 3, 0, 2, 0, 4, 0, 1, 0, 5, 6, 0, 0, 7};
277  static unsigned char dmas[8] =
278  {6, 1, 0, 2, 0, 3, 4, 5};
279 
280  if (snd_BUG_ON(!gus))
281  return -EINVAL;
282  card = gus->card;
283  if (snd_BUG_ON(!card))
284  return -EINVAL;
285 
286  gus->mix_cntrl_reg &= 0xf8;
287  gus->mix_cntrl_reg |= 0x01; /* disable MIC, LINE IN, enable LINE OUT */
288  if (gus->codec_flag || gus->ess_flag) {
289  gus->mix_cntrl_reg &= ~1; /* enable LINE IN */
290  gus->mix_cntrl_reg |= 4; /* enable MIC */
291  }
292  dma1 = gus->gf1.dma1;
293  dma1 = abs(dma1);
294  dma1 = dmas[dma1 & 7];
295  dma2 = gus->gf1.dma2;
296  dma2 = abs(dma2);
297  dma2 = dmas[dma2 & 7];
298  dma1 |= gus->equal_dma ? 0x40 : (dma2 << 3);
299 
300  if ((dma1 & 7) == 0 || (dma2 & 7) == 0) {
301  snd_printk(KERN_ERR "Error! DMA isn't defined.\n");
302  return -EINVAL;
303  }
304  irq = gus->gf1.irq;
305  irq = abs(irq);
306  irq = irqs[irq & 0x0f];
307  if (irq == 0) {
308  snd_printk(KERN_ERR "Error! IRQ isn't defined.\n");
309  return -EINVAL;
310  }
311  irq |= 0x40;
312 #if 0
313  card->mixer.mix_ctrl_reg |= 0x10;
314 #endif
315 
316  spin_lock_irqsave(&gus->reg_lock, flags);
317  outb(5, GUSP(gus, REGCNTRLS));
318  outb(gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
319  outb(0x00, GUSP(gus, IRQDMACNTRLREG));
320  outb(0, GUSP(gus, REGCNTRLS));
321  spin_unlock_irqrestore(&gus->reg_lock, flags);
322 
323  udelay(100);
324 
325  spin_lock_irqsave(&gus->reg_lock, flags);
326  outb(0x00 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
327  outb(dma1, GUSP(gus, IRQDMACNTRLREG));
328  if (latches) {
329  outb(0x40 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
330  outb(irq, GUSP(gus, IRQDMACNTRLREG));
331  }
332  spin_unlock_irqrestore(&gus->reg_lock, flags);
333 
334  udelay(100);
335 
336  spin_lock_irqsave(&gus->reg_lock, flags);
337  outb(0x00 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
338  outb(dma1, GUSP(gus, IRQDMACNTRLREG));
339  if (latches) {
340  outb(0x40 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
341  outb(irq, GUSP(gus, IRQDMACNTRLREG));
342  }
343  spin_unlock_irqrestore(&gus->reg_lock, flags);
344 
345  snd_gf1_delay(gus);
346 
347  if (latches)
348  gus->mix_cntrl_reg |= 0x08; /* enable latches */
349  else
350  gus->mix_cntrl_reg &= ~0x08; /* disable latches */
351  spin_lock_irqsave(&gus->reg_lock, flags);
352  outb(gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
353  outb(0, GUSP(gus, GF1PAGE));
354  spin_unlock_irqrestore(&gus->reg_lock, flags);
355 
356  return 0;
357 }
358 
359 static int snd_gus_check_version(struct snd_gus_card * gus)
360 {
361  unsigned long flags;
362  unsigned char val, rev;
363  struct snd_card *card;
364 
365  card = gus->card;
366  spin_lock_irqsave(&gus->reg_lock, flags);
367  outb(0x20, GUSP(gus, REGCNTRLS));
368  val = inb(GUSP(gus, REGCNTRLS));
369  rev = inb(GUSP(gus, BOARDVERSION));
370  spin_unlock_irqrestore(&gus->reg_lock, flags);
371  snd_printdd("GF1 [0x%lx] init - val = 0x%x, rev = 0x%x\n", gus->gf1.port, val, rev);
372  strcpy(card->driver, "GUS");
373  strcpy(card->longname, "Gravis UltraSound Classic (2.4)");
374  if ((val != 255 && (val & 0x06)) || (rev >= 5 && rev != 255)) {
375  if (rev >= 5 && rev <= 9) {
376  gus->ics_flag = 1;
377  if (rev == 5)
378  gus->ics_flipped = 1;
379  card->longname[27] = '3';
380  card->longname[29] = rev == 5 ? '5' : '7';
381  }
382  if (rev >= 10 && rev != 255) {
383  if (rev >= 10 && rev <= 11) {
384  strcpy(card->driver, "GUS MAX");
385  strcpy(card->longname, "Gravis UltraSound MAX");
386  gus->max_flag = 1;
387  } else if (rev == 0x30) {
388  strcpy(card->driver, "GUS ACE");
389  strcpy(card->longname, "Gravis UltraSound Ace");
390  gus->ace_flag = 1;
391  } else if (rev == 0x50) {
392  strcpy(card->driver, "GUS Extreme");
393  strcpy(card->longname, "Gravis UltraSound Extreme");
394  gus->ess_flag = 1;
395  } else {
396  snd_printk(KERN_ERR "unknown GF1 revision number at 0x%lx - 0x%x (0x%x)\n", gus->gf1.port, rev, val);
397  snd_printk(KERN_ERR " please - report to <[email protected]>\n");
398  }
399  }
400  }
401  strcpy(card->shortname, card->longname);
402  gus->uart_enable = 1; /* standard GUSes doesn't have midi uart trouble */
403  snd_gus_init_control(gus);
404  return 0;
405 }
406 
408 {
409  int err;
410 
411  if (!gus->interwave) {
412  if ((err = snd_gus_check_version(gus)) < 0) {
413  snd_printk(KERN_ERR "version check failed\n");
414  return err;
415  }
416  if ((err = snd_gus_detect_memory(gus)) < 0)
417  return err;
418  }
419  if ((err = snd_gus_init_dma_irq(gus, 1)) < 0)
420  return err;
421  snd_gf1_start(gus);
422  gus->initialized = 1;
423  return 0;
424 }
425 
426  /* gus_io.c */
439  /* gus_reset.c */
444  /* gus_mixer.c */
446  /* gus_pcm.c */
448  /* gus.c */
453  /* gus_irq.c */
455  /* gus_uart.c */
457  /* gus_dram.c */
460  /* gus_volume.c */
463  /* gus_mem.c */
468 
469 /*
470  * INIT part
471  */
472 
473 static int __init alsa_gus_init(void)
474 {
475  return 0;
476 }
477 
478 static void __exit alsa_gus_exit(void)
479 {
480 }
481 
482 module_init(alsa_gus_init)
483 module_exit(alsa_gus_exit)