git.oblomov.eu Git - linux-2.6/blob - 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 <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@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 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         spin_lock_init(&gus->reg_lock);
 158         spin_lock_init(&gus->voice_alloc);
 159         spin_lock_init(&gus->active_voice_lock);
 160         spin_lock_init(&gus->event_lock);
 161         spin_lock_init(&gus->dma_lock);
 162         spin_lock_init(&gus->pcm_volume_level_lock);
 163         spin_lock_init(&gus->uart_cmd_lock);
 164         mutex_init(&gus->dma_mutex);
 165         gus->gf1.irq = -1;
 166         gus->gf1.dma1 = -1;
 167         gus->gf1.dma2 = -1;
 168         gus->card = card;
 169         gus->gf1.port = port;
 170         /* fill register variables for speedup */
 171         gus->gf1.reg_page = GUSP(gus, GF1PAGE);
 172         gus->gf1.reg_regsel = GUSP(gus, GF1REGSEL);
 173         gus->gf1.reg_data8 = GUSP(gus, GF1DATAHIGH);
 174         gus->gf1.reg_data16 = GUSP(gus, GF1DATALOW);
 175         gus->gf1.reg_irqstat = GUSP(gus, IRQSTAT);
 176         gus->gf1.reg_dram = GUSP(gus, DRAM);
 177         gus->gf1.reg_timerctrl = GUSP(gus, TIMERCNTRL);
 178         gus->gf1.reg_timerdata = GUSP(gus, TIMERDATA);
 179         /* allocate resources */
 180         if ((gus->gf1.res_port1 = request_region(port, 16, "GUS GF1 (Adlib/SB)")) == NULL) {
 181                 snd_printk(KERN_ERR "gus: can't grab SB port 0x%lx\n", port);
 182                 snd_gus_free(gus);
 183                 return -EBUSY;
 184         }
 185         if ((gus->gf1.res_port2 = request_region(port + 0x100, 12, "GUS GF1 (Synth)")) == NULL) {
 186                 snd_printk(KERN_ERR "gus: can't grab synth port 0x%lx\n", port + 0x100);
 187                 snd_gus_free(gus);
 188                 return -EBUSY;
 189         }
 190         if (irq >= 0 && request_irq(irq, snd_gus_interrupt, IRQF_DISABLED, "GUS GF1", (void *) gus)) {
 191                 snd_printk(KERN_ERR "gus: can't grab irq %d\n", irq);
 192                 snd_gus_free(gus);
 193                 return -EBUSY;
 194         }
 195         gus->gf1.irq = irq;
 196         if (request_dma(dma1, "GUS - 1")) {
 197                 snd_printk(KERN_ERR "gus: can't grab DMA1 %d\n", dma1);
 198                 snd_gus_free(gus);
 199                 return -EBUSY;
 200         }
 201         gus->gf1.dma1 = dma1;
 202         if (dma2 >= 0 && dma1 != dma2) {
 203                 if (request_dma(dma2, "GUS - 2")) {
 204                         snd_printk(KERN_ERR "gus: can't grab DMA2 %d\n", dma2);
 205                         snd_gus_free(gus);
 206                         return -EBUSY;
 207                 }
 208                 gus->gf1.dma2 = dma2;
 209         } else {
 210                 gus->gf1.dma2 = gus->gf1.dma1;
 211                 gus->equal_dma = 1;
 212         }
 213         gus->timer_dev = timer_dev;
 214         if (voices < 14)
 215                 voices = 14;
 216         if (voices > 32)
 217                 voices = 32;
 218         if (pcm_channels < 0)
 219                 pcm_channels = 0;
 220         if (pcm_channels > 8)
 221                 pcm_channels = 8;
 222         pcm_channels++;
 223         pcm_channels &= ~1;
 224         gus->gf1.effect = effect ? 1 : 0;
 225         gus->gf1.active_voices = voices;
 226         gus->gf1.pcm_channels = pcm_channels;
 227         gus->gf1.volume_ramp = 25;
 228         gus->gf1.smooth_pan = 1;
 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@perex.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)