sound/isa/gus/gus_main.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *  Routines for Gravis UltraSound soundcards
   4  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
   5  */
   6
   7 #include <linux/init.h>
   8 #include <linux/interrupt.h>
   9 #include <linux/delay.h>
  10 #include <linux/slab.h>
  11 #include <linux/ioport.h>
  12 #include <linux/module.h>
  13 #include <sound/core.h>
  14 #include <sound/gus.h>
  15 #include <sound/control.h>
  16
  17 #include <asm/dma.h>
  18
  19 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
  20 MODULE_DESCRIPTION("Routines for Gravis UltraSound soundcards");
  21 MODULE_LICENSE("GPL");
  22
  23 static int snd_gus_init_dma_irq(struct snd_gus_card * gus, int latches);
  24
  25 int snd_gus_use_inc(struct snd_gus_card * gus)
  26 {
  27         if (!try_module_get(gus->card->module))
  28                 return 0;
  29         return 1;
  30 }
  31
  32 void snd_gus_use_dec(struct snd_gus_card * gus)
  33 {
  34         module_put(gus->card->module);
  35 }
  36
  37 static int snd_gus_joystick_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
  38 {
  39         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
  40         uinfo->count = 1;
  41         uinfo->value.integer.min = 0;
  42         uinfo->value.integer.max = 31;
  43         return 0;
  44 }
  45
  46 static int snd_gus_joystick_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  47 {
  48         struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
  49
  50         ucontrol->value.integer.value[0] = gus->joystick_dac & 31;
  51         return 0;
  52 }
  53
  54 static int snd_gus_joystick_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  55 {
  56         struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
  57         unsigned long flags;
  58         int change;
  59         unsigned char nval;
  60
  61         nval = ucontrol->value.integer.value[0] & 31;
  62         spin_lock_irqsave(&gus->reg_lock, flags);
  63         change = gus->joystick_dac != nval;
  64         gus->joystick_dac = nval;
  65         snd_gf1_write8(gus, SNDRV_GF1_GB_JOYSTICK_DAC_LEVEL, gus->joystick_dac);
  66         spin_unlock_irqrestore(&gus->reg_lock, flags);
  67         return change;
  68 }
  69
  70 static const struct snd_kcontrol_new snd_gus_joystick_control = {
  71         .iface = SNDRV_CTL_ELEM_IFACE_CARD,
  72         .name = "Joystick Speed",
  73         .info = snd_gus_joystick_info,
  74         .get = snd_gus_joystick_get,
  75         .put = snd_gus_joystick_put
  76 };
  77
  78 static void snd_gus_init_control(struct snd_gus_card *gus)
  79 {
  80         int ret;
  81
  82         if (!gus->ace_flag) {
  83                 ret =
  84                         snd_ctl_add(gus->card,
  85                                         snd_ctl_new1(&snd_gus_joystick_control,
  86                                                 gus));
  87                 if (ret)
  88                         snd_printk(KERN_ERR "gus: snd_ctl_add failed: %d\n",
  89                                         ret);
  90         }
  91 }
  92
  93 /*
  94  *
  95  */
  96
  97 static int snd_gus_free(struct snd_gus_card *gus)
  98 {
  99         if (gus->gf1.res_port2 == NULL)
 100                 goto __hw_end;
 101         snd_gf1_stop(gus);
 102         snd_gus_init_dma_irq(gus, 0);
 103       __hw_end:
 104         release_and_free_resource(gus->gf1.res_port1);
 105         release_and_free_resource(gus->gf1.res_port2);
 106         if (gus->gf1.irq >= 0)
 107                 free_irq(gus->gf1.irq, (void *) gus);
 108         if (gus->gf1.dma1 >= 0) {
 109                 disable_dma(gus->gf1.dma1);
 110                 free_dma(gus->gf1.dma1);
 111         }
 112         if (!gus->equal_dma && gus->gf1.dma2 >= 0) {
 113                 disable_dma(gus->gf1.dma2);
 114                 free_dma(gus->gf1.dma2);
 115         }
 116         kfree(gus);
 117         return 0;
 118 }
 119
 120 static int snd_gus_dev_free(struct snd_device *device)
 121 {
 122         struct snd_gus_card *gus = device->device_data;
 123         return snd_gus_free(gus);
 124 }
 125
 126 int snd_gus_create(struct snd_card *card,
 127                    unsigned long port,
 128                    int irq, int dma1, int dma2,
 129                    int timer_dev,
 130                    int voices,
 131                    int pcm_channels,
 132                    int effect,
 133                    struct snd_gus_card **rgus)
 134 {
 135         struct snd_gus_card *gus;
 136         int err;
 137         static const struct snd_device_ops ops = {
 138                 .dev_free =     snd_gus_dev_free,
 139         };
 140
 141         *rgus = NULL;
 142         gus = kzalloc(sizeof(*gus), GFP_KERNEL);
 143         if (gus == NULL)
 144                 return -ENOMEM;
 145         spin_lock_init(&gus->reg_lock);
 146         spin_lock_init(&gus->voice_alloc);
 147         spin_lock_init(&gus->active_voice_lock);
 148         spin_lock_init(&gus->event_lock);
 149         spin_lock_init(&gus->dma_lock);
 150         spin_lock_init(&gus->pcm_volume_level_lock);
 151         spin_lock_init(&gus->uart_cmd_lock);
 152         mutex_init(&gus->dma_mutex);
 153         gus->gf1.irq = -1;
 154         gus->gf1.dma1 = -1;
 155         gus->gf1.dma2 = -1;
 156         gus->card = card;
 157         gus->gf1.port = port;
 158         /* fill register variables for speedup */
 159         gus->gf1.reg_page = GUSP(gus, GF1PAGE);
 160         gus->gf1.reg_regsel = GUSP(gus, GF1REGSEL);
 161         gus->gf1.reg_data8 = GUSP(gus, GF1DATAHIGH);
 162         gus->gf1.reg_data16 = GUSP(gus, GF1DATALOW);
 163         gus->gf1.reg_irqstat = GUSP(gus, IRQSTAT);
 164         gus->gf1.reg_dram = GUSP(gus, DRAM);
 165         gus->gf1.reg_timerctrl = GUSP(gus, TIMERCNTRL);
 166         gus->gf1.reg_timerdata = GUSP(gus, TIMERDATA);
 167         /* allocate resources */
 168         if ((gus->gf1.res_port1 = request_region(port, 16, "GUS GF1 (Adlib/SB)")) == NULL) {
 169                 snd_printk(KERN_ERR "gus: can't grab SB port 0x%lx\n", port);
 170                 snd_gus_free(gus);
 171                 return -EBUSY;
 172         }
 173         if ((gus->gf1.res_port2 = request_region(port + 0x100, 12, "GUS GF1 (Synth)")) == NULL) {
 174                 snd_printk(KERN_ERR "gus: can't grab synth port 0x%lx\n", port + 0x100);
 175                 snd_gus_free(gus);
 176                 return -EBUSY;
 177         }
 178         if (irq >= 0 && request_irq(irq, snd_gus_interrupt, 0, "GUS GF1", (void *) gus)) {
 179                 snd_printk(KERN_ERR "gus: can't grab irq %d\n", irq);
 180                 snd_gus_free(gus);
 181                 return -EBUSY;
 182         }
 183         gus->gf1.irq = irq;
 184         card->sync_irq = irq;
 185         if (request_dma(dma1, "GUS - 1")) {
 186                 snd_printk(KERN_ERR "gus: can't grab DMA1 %d\n", dma1);
 187                 snd_gus_free(gus);
 188                 return -EBUSY;
 189         }
 190         gus->gf1.dma1 = dma1;
 191         if (dma2 >= 0 && dma1 != dma2) {
 192                 if (request_dma(dma2, "GUS - 2")) {
 193                         snd_printk(KERN_ERR "gus: can't grab DMA2 %d\n", dma2);
 194                         snd_gus_free(gus);
 195                         return -EBUSY;
 196                 }
 197                 gus->gf1.dma2 = dma2;
 198         } else {
 199                 gus->gf1.dma2 = gus->gf1.dma1;
 200                 gus->equal_dma = 1;
 201         }
 202         gus->timer_dev = timer_dev;
 203         if (voices < 14)
 204                 voices = 14;
 205         if (voices > 32)
 206                 voices = 32;
 207         if (pcm_channels < 0)
 208                 pcm_channels = 0;
 209         if (pcm_channels > 8)
 210                 pcm_channels = 8;
 211         pcm_channels++;
 212         pcm_channels &= ~1;
 213         gus->gf1.effect = effect ? 1 : 0;
 214         gus->gf1.active_voices = voices;
 215         gus->gf1.pcm_channels = pcm_channels;
 216         gus->gf1.volume_ramp = 25;
 217         gus->gf1.smooth_pan = 1;
 218         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, gus, &ops)) < 0) {
 219                 snd_gus_free(gus);
 220                 return err;
 221         }
 222         *rgus = gus;
 223         return 0;
 224 }
 225
 226 /*
 227  *  Memory detection routine for plain GF1 soundcards
 228  */
 229
 230 static int snd_gus_detect_memory(struct snd_gus_card * gus)
 231 {
 232         int l, idx, local;
 233         unsigned char d;
 234
 235         snd_gf1_poke(gus, 0L, 0xaa);
 236         snd_gf1_poke(gus, 1L, 0x55);
 237         if (snd_gf1_peek(gus, 0L) != 0xaa || snd_gf1_peek(gus, 1L) != 0x55) {
 238                 snd_printk(KERN_ERR "plain GF1 card at 0x%lx without onboard DRAM?\n", gus->gf1.port);
 239                 return -ENOMEM;
 240         }
 241         for (idx = 1, d = 0xab; idx < 4; idx++, d++) {
 242                 local = idx << 18;
 243                 snd_gf1_poke(gus, local, d);
 244                 snd_gf1_poke(gus, local + 1, d + 1);
 245                 if (snd_gf1_peek(gus, local) != d ||
 246                     snd_gf1_peek(gus, local + 1) != d + 1 ||
 247                     snd_gf1_peek(gus, 0L) != 0xaa)
 248                         break;
 249         }
 250 #if 1
 251         gus->gf1.memory = idx << 18;
 252 #else
 253         gus->gf1.memory = 256 * 1024;
 254 #endif
 255         for (l = 0, local = gus->gf1.memory; l < 4; l++, local -= 256 * 1024) {
 256                 gus->gf1.mem_alloc.banks_8[l].address =
 257                     gus->gf1.mem_alloc.banks_8[l].size = 0;
 258                 gus->gf1.mem_alloc.banks_16[l].address = l << 18;
 259                 gus->gf1.mem_alloc.banks_16[l].size = local > 0 ? 256 * 1024 : 0;
 260         }
 261         gus->gf1.mem_alloc.banks_8[0].size = gus->gf1.memory;
 262         return 0;               /* some memory were detected */
 263 }
 264
 265 static int snd_gus_init_dma_irq(struct snd_gus_card * gus, int latches)
 266 {
 267         struct snd_card *card;
 268         unsigned long flags;
 269         int irq, dma1, dma2;
 270         static const unsigned char irqs[16] =
 271                 {0, 0, 1, 3, 0, 2, 0, 4, 0, 1, 0, 5, 6, 0, 0, 7};
 272         static const unsigned char dmas[8] =
 273                 {6, 1, 0, 2, 0, 3, 4, 5};
 274
 275         if (snd_BUG_ON(!gus))
 276                 return -EINVAL;
 277         card = gus->card;
 278         if (snd_BUG_ON(!card))
 279                 return -EINVAL;
 280
 281         gus->mix_cntrl_reg &= 0xf8;
 282         gus->mix_cntrl_reg |= 0x01;     /* disable MIC, LINE IN, enable LINE OUT */
 283         if (gus->codec_flag || gus->ess_flag) {
 284                 gus->mix_cntrl_reg &= ~1;       /* enable LINE IN */
 285                 gus->mix_cntrl_reg |= 4;        /* enable MIC */
 286         }
 287         dma1 = gus->gf1.dma1;
 288         dma1 = abs(dma1);
 289         dma1 = dmas[dma1 & 7];
 290         dma2 = gus->gf1.dma2;
 291         dma2 = abs(dma2);
 292         dma2 = dmas[dma2 & 7];
 293         dma1 |= gus->equal_dma ? 0x40 : (dma2 << 3);
 294
 295         if ((dma1 & 7) == 0 || (dma2 & 7) == 0) {
 296                 snd_printk(KERN_ERR "Error! DMA isn't defined.\n");
 297                 return -EINVAL;
 298         }
 299         irq = gus->gf1.irq;
 300         irq = abs(irq);
 301         irq = irqs[irq & 0x0f];
 302         if (irq == 0) {
 303                 snd_printk(KERN_ERR "Error! IRQ isn't defined.\n");
 304                 return -EINVAL;
 305         }
 306         irq |= 0x40;
 307 #if 0
 308         card->mixer.mix_ctrl_reg |= 0x10;
 309 #endif
 310
 311         spin_lock_irqsave(&gus->reg_lock, flags);
 312         outb(5, GUSP(gus, REGCNTRLS));
 313         outb(gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
 314         outb(0x00, GUSP(gus, IRQDMACNTRLREG));
 315         outb(0, GUSP(gus, REGCNTRLS));
 316         spin_unlock_irqrestore(&gus->reg_lock, flags);
 317
 318         udelay(100);
 319
 320         spin_lock_irqsave(&gus->reg_lock, flags);
 321         outb(0x00 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
 322         outb(dma1, GUSP(gus, IRQDMACNTRLREG));
 323         if (latches) {
 324                 outb(0x40 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
 325                 outb(irq, GUSP(gus, IRQDMACNTRLREG));
 326         }
 327         spin_unlock_irqrestore(&gus->reg_lock, flags);
 328
 329         udelay(100);
 330
 331         spin_lock_irqsave(&gus->reg_lock, flags);
 332         outb(0x00 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
 333         outb(dma1, GUSP(gus, IRQDMACNTRLREG));
 334         if (latches) {
 335                 outb(0x40 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
 336                 outb(irq, GUSP(gus, IRQDMACNTRLREG));
 337         }
 338         spin_unlock_irqrestore(&gus->reg_lock, flags);
 339
 340         snd_gf1_delay(gus);
 341
 342         if (latches)
 343                 gus->mix_cntrl_reg |= 0x08;     /* enable latches */
 344         else
 345                 gus->mix_cntrl_reg &= ~0x08;    /* disable latches */
 346         spin_lock_irqsave(&gus->reg_lock, flags);
 347         outb(gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
 348         outb(0, GUSP(gus, GF1PAGE));
 349         spin_unlock_irqrestore(&gus->reg_lock, flags);
 350
 351         return 0;
 352 }
 353
 354 static int snd_gus_check_version(struct snd_gus_card * gus)
 355 {
 356         unsigned long flags;
 357         unsigned char val, rev;
 358         struct snd_card *card;
 359
 360         card = gus->card;
 361         spin_lock_irqsave(&gus->reg_lock, flags);
 362         outb(0x20, GUSP(gus, REGCNTRLS));
 363         val = inb(GUSP(gus, REGCNTRLS));
 364         rev = inb(GUSP(gus, BOARDVERSION));
 365         spin_unlock_irqrestore(&gus->reg_lock, flags);
 366         snd_printdd("GF1 [0x%lx] init - val = 0x%x, rev = 0x%x\n", gus->gf1.port, val, rev);
 367         strcpy(card->driver, "GUS");
 368         strcpy(card->longname, "Gravis UltraSound Classic (2.4)");
 369         if ((val != 255 && (val & 0x06)) || (rev >= 5 && rev != 255)) {
 370                 if (rev >= 5 && rev <= 9) {
 371                         gus->ics_flag = 1;
 372                         if (rev == 5)
 373                                 gus->ics_flipped = 1;
 374                         card->longname[27] = '3';
 375                         card->longname[29] = rev == 5 ? '5' : '7';
 376                 }
 377                 if (rev >= 10 && rev != 255) {
 378                         if (rev >= 10 && rev <= 11) {
 379                                 strcpy(card->driver, "GUS MAX");
 380                                 strcpy(card->longname, "Gravis UltraSound MAX");
 381                                 gus->max_flag = 1;
 382                         } else if (rev == 0x30) {
 383                                 strcpy(card->driver, "GUS ACE");
 384                                 strcpy(card->longname, "Gravis UltraSound Ace");
 385                                 gus->ace_flag = 1;
 386                         } else if (rev == 0x50) {
 387                                 strcpy(card->driver, "GUS Extreme");
 388                                 strcpy(card->longname, "Gravis UltraSound Extreme");
 389                                 gus->ess_flag = 1;
 390                         } else {
 391                                 snd_printk(KERN_ERR "unknown GF1 revision number at 0x%lx - 0x%x (0x%x)\n", gus->gf1.port, rev, val);
 392                                 snd_printk(KERN_ERR "  please - report to <perex@perex.cz>\n");
 393                         }
 394                 }
 395         }
 396         strcpy(card->shortname, card->longname);
 397         gus->uart_enable = 1;   /* standard GUSes doesn't have midi uart trouble */
 398         snd_gus_init_control(gus);
 399         return 0;
 400 }
 401
 402 int snd_gus_initialize(struct snd_gus_card *gus)
 403 {
 404         int err;
 405
 406         if (!gus->interwave) {
 407                 if ((err = snd_gus_check_version(gus)) < 0) {
 408                         snd_printk(KERN_ERR "version check failed\n");
 409                         return err;
 410                 }
 411                 if ((err = snd_gus_detect_memory(gus)) < 0)
 412                         return err;
 413         }
 414         if ((err = snd_gus_init_dma_irq(gus, 1)) < 0)
 415                 return err;
 416         snd_gf1_start(gus);
 417         gus->initialized = 1;
 418         return 0;
 419 }
 420
 421   /* gus_io.c */
 422 EXPORT_SYMBOL(snd_gf1_delay);
 423 EXPORT_SYMBOL(snd_gf1_write8);
 424 EXPORT_SYMBOL(snd_gf1_look8);
 425 EXPORT_SYMBOL(snd_gf1_write16);
 426 EXPORT_SYMBOL(snd_gf1_look16);
 427 EXPORT_SYMBOL(snd_gf1_i_write8);
 428 EXPORT_SYMBOL(snd_gf1_i_look8);
 429 EXPORT_SYMBOL(snd_gf1_i_look16);
 430 EXPORT_SYMBOL(snd_gf1_dram_addr);
 431 EXPORT_SYMBOL(snd_gf1_write_addr);
 432 EXPORT_SYMBOL(snd_gf1_poke);
 433 EXPORT_SYMBOL(snd_gf1_peek);
 434   /* gus_reset.c */
 435 EXPORT_SYMBOL(snd_gf1_alloc_voice);
 436 EXPORT_SYMBOL(snd_gf1_free_voice);
 437 EXPORT_SYMBOL(snd_gf1_ctrl_stop);
 438 EXPORT_SYMBOL(snd_gf1_stop_voice);
 439   /* gus_mixer.c */
 440 EXPORT_SYMBOL(snd_gf1_new_mixer);
 441   /* gus_pcm.c */
 442 EXPORT_SYMBOL(snd_gf1_pcm_new);
 443   /* gus.c */
 444 EXPORT_SYMBOL(snd_gus_use_inc);
 445 EXPORT_SYMBOL(snd_gus_use_dec);
 446 EXPORT_SYMBOL(snd_gus_create);
 447 EXPORT_SYMBOL(snd_gus_initialize);
 448   /* gus_irq.c */
 449 EXPORT_SYMBOL(snd_gus_interrupt);
 450   /* gus_uart.c */
 451 EXPORT_SYMBOL(snd_gf1_rawmidi_new);
 452   /* gus_dram.c */
 453 EXPORT_SYMBOL(snd_gus_dram_write);
 454 EXPORT_SYMBOL(snd_gus_dram_read);
 455   /* gus_volume.c */
 456 EXPORT_SYMBOL(snd_gf1_lvol_to_gvol_raw);
 457 EXPORT_SYMBOL(snd_gf1_translate_freq);
 458   /* gus_mem.c */
 459 EXPORT_SYMBOL(snd_gf1_mem_alloc);
 460 EXPORT_SYMBOL(snd_gf1_mem_xfree);
 461 EXPORT_SYMBOL(snd_gf1_mem_free);
 462 EXPORT_SYMBOL(snd_gf1_mem_lock);