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 <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)