kernel/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 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         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
 132 int snd_gus_create(struct snd_card *card,
 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);
 152         spin_lock_init(&gus->voice_alloc);
 153         spin_lock_init(&gus->active_voice_lock);
 154         spin_lock_init(&gus->event_lock);
 155         spin_lock_init(&gus->dma_lock);
 156         spin_lock_init(&gus->pcm_volume_level_lock);
 157         spin_lock_init(&gus->uart_cmd_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 <perex@perex.cz>\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
 407 int snd_gus_initialize(struct snd_gus_card *gus)
 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 */
 427 EXPORT_SYMBOL(snd_gf1_delay);
 428 EXPORT_SYMBOL(snd_gf1_write8);
 429 EXPORT_SYMBOL(snd_gf1_look8);
 430 EXPORT_SYMBOL(snd_gf1_write16);
 431 EXPORT_SYMBOL(snd_gf1_look16);
 432 EXPORT_SYMBOL(snd_gf1_i_write8);
 433 EXPORT_SYMBOL(snd_gf1_i_look8);
 434 EXPORT_SYMBOL(snd_gf1_i_look16);
 435 EXPORT_SYMBOL(snd_gf1_dram_addr);
 436 EXPORT_SYMBOL(snd_gf1_write_addr);
 437 EXPORT_SYMBOL(snd_gf1_poke);
 438 EXPORT_SYMBOL(snd_gf1_peek);
 439   /* gus_reset.c */
 440 EXPORT_SYMBOL(snd_gf1_alloc_voice);
 441 EXPORT_SYMBOL(snd_gf1_free_voice);
 442 EXPORT_SYMBOL(snd_gf1_ctrl_stop);
 443 EXPORT_SYMBOL(snd_gf1_stop_voice);
 444   /* gus_mixer.c */
 445 EXPORT_SYMBOL(snd_gf1_new_mixer);
 446   /* gus_pcm.c */
 447 EXPORT_SYMBOL(snd_gf1_pcm_new);
 448   /* gus.c */
 449 EXPORT_SYMBOL(snd_gus_use_inc);
 450 EXPORT_SYMBOL(snd_gus_use_dec);
 451 EXPORT_SYMBOL(snd_gus_create);
 452 EXPORT_SYMBOL(snd_gus_initialize);
 453   /* gus_irq.c */
 454 EXPORT_SYMBOL(snd_gus_interrupt);
 455   /* gus_uart.c */
 456 EXPORT_SYMBOL(snd_gf1_rawmidi_new);
 457   /* gus_dram.c */
 458 EXPORT_SYMBOL(snd_gus_dram_write);
 459 EXPORT_SYMBOL(snd_gus_dram_read);
 460   /* gus_volume.c */
 461 EXPORT_SYMBOL(snd_gf1_lvol_to_gvol_raw);
 462 EXPORT_SYMBOL(snd_gf1_translate_freq);
 463   /* gus_mem.c */
 464 EXPORT_SYMBOL(snd_gf1_mem_alloc);
 465 EXPORT_SYMBOL(snd_gf1_mem_xfree);
 466 EXPORT_SYMBOL(snd_gf1_mem_free);
 467 EXPORT_SYMBOL(snd_gf1_mem_lock);
 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)