git.oblomov.eu Git - linux-2.6/blob - sound/isa/gus/gusmax.c

   1 /*
   2  *  Driver for Gravis UltraSound MAX soundcard
   3  *  Copyright (c) by Jaroslav Kysela <perex@suse.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/err.h>
  25 #include <linux/platform_device.h>
  26 #include <linux/delay.h>
  27 #include <linux/time.h>
  28 #include <linux/moduleparam.h>
  29 #include <asm/dma.h>
  30 #include <sound/core.h>
  31 #include <sound/gus.h>
  32 #include <sound/cs4231.h>
  33 #define SNDRV_LEGACY_FIND_FREE_IRQ
  34 #define SNDRV_LEGACY_FIND_FREE_DMA
  35 #include <sound/initval.h>
  36
  37 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
  38 MODULE_DESCRIPTION("Gravis UltraSound MAX");
  39 MODULE_LICENSE("GPL");
  40 MODULE_SUPPORTED_DEVICE("{{Gravis,UltraSound MAX}}");
  41
  42 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  43 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  44 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;  /* Enable this card */
  45 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* 0x220,0x230,0x240,0x250,0x260 */
  46 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* 2,3,5,9,11,12,15 */
  47 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 1,3,5,6,7 */
  48 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 1,3,5,6,7 */
  49 static int joystick_dac[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 29};
  50                                 /* 0 to 31, (0.59V-4.52V or 0.389V-2.98V) */
  51 static int channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 24};
  52 static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2};
  53
  54 module_param_array(index, int, NULL, 0444);
  55 MODULE_PARM_DESC(index, "Index value for GUS MAX soundcard.");
  56 module_param_array(id, charp, NULL, 0444);
  57 MODULE_PARM_DESC(id, "ID string for GUS MAX soundcard.");
  58 module_param_array(enable, bool, NULL, 0444);
  59 MODULE_PARM_DESC(enable, "Enable GUS MAX soundcard.");
  60 module_param_array(port, long, NULL, 0444);
  61 MODULE_PARM_DESC(port, "Port # for GUS MAX driver.");
  62 module_param_array(irq, int, NULL, 0444);
  63 MODULE_PARM_DESC(irq, "IRQ # for GUS MAX driver.");
  64 module_param_array(dma1, int, NULL, 0444);
  65 MODULE_PARM_DESC(dma1, "DMA1 # for GUS MAX driver.");
  66 module_param_array(dma2, int, NULL, 0444);
  67 MODULE_PARM_DESC(dma2, "DMA2 # for GUS MAX driver.");
  68 module_param_array(joystick_dac, int, NULL, 0444);
  69 MODULE_PARM_DESC(joystick_dac, "Joystick DAC level 0.59V-4.52V or 0.389V-2.98V for GUS MAX driver.");
  70 module_param_array(channels, int, NULL, 0444);
  71 MODULE_PARM_DESC(channels, "Used GF1 channels for GUS MAX driver.");
  72 module_param_array(pcm_channels, int, NULL, 0444);
  73 MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for GUS MAX driver.");
  74
  75 static struct platform_device *devices[SNDRV_CARDS];
  76
  77 struct snd_gusmax {
  78         int irq;
  79         struct snd_card *card;
  80         struct snd_gus_card *gus;
  81         struct snd_cs4231 *cs4231;
  82         unsigned short gus_status_reg;
  83         unsigned short pcm_status_reg;
  84 };
  85
  86 #define PFX     "gusmax: "
  87
  88 static int __init snd_gusmax_detect(struct snd_gus_card * gus)
  89 {
  90         unsigned char d;
  91
  92         snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0);   /* reset GF1 */
  93         if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 0) {
  94                 snd_printdd("[0x%lx] check 1 failed - 0x%x\n", gus->gf1.port, d);
  95                 return -ENODEV;
  96         }
  97         udelay(160);
  98         snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1);   /* release reset */
  99         udelay(160);
 100         if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 1) {
 101                 snd_printdd("[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d);
 102                 return -ENODEV;
 103         }
 104
 105         return 0;
 106 }
 107
 108 static irqreturn_t snd_gusmax_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 109 {
 110         struct snd_gusmax *maxcard = (struct snd_gusmax *) dev_id;
 111         int loop, max = 5;
 112         int handled = 0;
 113
 114         do {
 115                 loop = 0;
 116                 if (inb(maxcard->gus_status_reg)) {
 117                         handled = 1;
 118                         snd_gus_interrupt(irq, maxcard->gus, regs);
 119                         loop++;
 120                 }
 121                 if (inb(maxcard->pcm_status_reg) & 0x01) { /* IRQ bit is set? */
 122                         handled = 1;
 123                         snd_cs4231_interrupt(irq, maxcard->cs4231, regs);
 124                         loop++;
 125                 }
 126         } while (loop && --max > 0);
 127         return IRQ_RETVAL(handled);
 128 }
 129
 130 static void __init snd_gusmax_init(int dev, struct snd_card *card, struct snd_gus_card * gus)
 131 {
 132         gus->equal_irq = 1;
 133         gus->codec_flag = 1;
 134         gus->joystick_dac = joystick_dac[dev];
 135         /* init control register */
 136         gus->max_cntrl_val = (gus->gf1.port >> 4) & 0x0f;
 137         if (gus->gf1.dma1 > 3)
 138                 gus->max_cntrl_val |= 0x10;
 139         if (gus->gf1.dma2 > 3)
 140                 gus->max_cntrl_val |= 0x20;
 141         gus->max_cntrl_val |= 0x40;
 142         outb(gus->max_cntrl_val, GUSP(gus, MAXCNTRLPORT));
 143 }
 144
 145 #define CS4231_PRIVATE( left, right, shift, mute ) \
 146                         ((left << 24)|(right << 16)|(shift<<8)|mute)
 147
 148 static int __init snd_gusmax_mixer(struct snd_cs4231 *chip)
 149 {
 150         struct snd_card *card = chip->card;
 151         struct snd_ctl_elem_id id1, id2;
 152         int err;
 153
 154         memset(&id1, 0, sizeof(id1));
 155         memset(&id2, 0, sizeof(id2));
 156         id1.iface = id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 157         /* reassign AUXA to SYNTHESIZER */
 158         strcpy(id1.name, "Aux Playback Switch");
 159         strcpy(id2.name, "Synth Playback Switch");
 160         if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
 161                 return err;
 162         strcpy(id1.name, "Aux Playback Volume");
 163         strcpy(id2.name, "Synth Playback Volume");
 164         if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
 165                 return err;
 166         /* reassign AUXB to CD */
 167         strcpy(id1.name, "Aux Playback Switch"); id1.index = 1;
 168         strcpy(id2.name, "CD Playback Switch");
 169         if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
 170                 return err;
 171         strcpy(id1.name, "Aux Playback Volume");
 172         strcpy(id2.name, "CD Playback Volume");
 173         if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
 174                 return err;
 175 #if 0
 176         /* reassign Mono Input to MIC */
 177         if (snd_mixer_group_rename(mixer,
 178                                 SNDRV_MIXER_IN_MONO, 0,
 179                                 SNDRV_MIXER_IN_MIC, 0) < 0)
 180                 goto __error;
 181         if (snd_mixer_elem_rename(mixer,
 182                                 SNDRV_MIXER_IN_MONO, 0, SNDRV_MIXER_ETYPE_INPUT,
 183                                 SNDRV_MIXER_IN_MIC, 0) < 0)
 184                 goto __error;
 185         if (snd_mixer_elem_rename(mixer,
 186                                 "Mono Capture Volume", 0, SNDRV_MIXER_ETYPE_VOLUME1,
 187                                 "Mic Capture Volume", 0) < 0)
 188                 goto __error;
 189         if (snd_mixer_elem_rename(mixer,
 190                                 "Mono Capture Switch", 0, SNDRV_MIXER_ETYPE_SWITCH1,
 191                                 "Mic Capture Switch", 0) < 0)
 192                 goto __error;
 193 #endif
 194         return 0;
 195 }
 196
 197 static void snd_gusmax_free(struct snd_card *card)
 198 {
 199         struct snd_gusmax *maxcard = (struct snd_gusmax *)card->private_data;
 200
 201         if (maxcard == NULL)
 202                 return;
 203         if (maxcard->irq >= 0)
 204                 free_irq(maxcard->irq, (void *)maxcard);
 205 }
 206
 207 static int __init snd_gusmax_probe(struct platform_device *pdev)
 208 {
 209         int dev = pdev->id;
 210         static int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, -1};
 211         static int possible_dmas[] = {5, 6, 7, 1, 3, -1};
 212         int xirq, xdma1, xdma2, err;
 213         struct snd_card *card;
 214         struct snd_gus_card *gus = NULL;
 215         struct snd_cs4231 *cs4231;
 216         struct snd_gusmax *maxcard;
 217
 218         card = snd_card_new(index[dev], id[dev], THIS_MODULE,
 219                             sizeof(struct snd_gusmax));
 220         if (card == NULL)
 221                 return -ENOMEM;
 222         card->private_free = snd_gusmax_free;
 223         maxcard = (struct snd_gusmax *)card->private_data;
 224         maxcard->card = card;
 225         maxcard->irq = -1;
 226
 227         xirq = irq[dev];
 228         if (xirq == SNDRV_AUTO_IRQ) {
 229                 if ((xirq = snd_legacy_find_free_irq(possible_irqs)) < 0) {
 230                         snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
 231                         err = -EBUSY;
 232                         goto _err;
 233                 }
 234         }
 235         xdma1 = dma1[dev];
 236         if (xdma1 == SNDRV_AUTO_DMA) {
 237                 if ((xdma1 = snd_legacy_find_free_dma(possible_dmas)) < 0) {
 238                         snd_printk(KERN_ERR PFX "unable to find a free DMA1\n");
 239                         err = -EBUSY;
 240                         goto _err;
 241                 }
 242         }
 243         xdma2 = dma2[dev];
 244         if (xdma2 == SNDRV_AUTO_DMA) {
 245                 if ((xdma2 = snd_legacy_find_free_dma(possible_dmas)) < 0) {
 246                         snd_printk(KERN_ERR PFX "unable to find a free DMA2\n");
 247                         err = -EBUSY;
 248                         goto _err;
 249                 }
 250         }
 251
 252         if (port[dev] != SNDRV_AUTO_PORT) {
 253                 err = snd_gus_create(card,
 254                                      port[dev],
 255                                      -xirq, xdma1, xdma2,
 256                                      0, channels[dev],
 257                                      pcm_channels[dev],
 258                                      0, &gus);
 259         } else {
 260                 static unsigned long possible_ports[] = {
 261                         0x220, 0x230, 0x240, 0x250, 0x260
 262                 };
 263                 int i;
 264                 for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
 265                         err = snd_gus_create(card,
 266                                              possible_ports[i],
 267                                              -xirq, xdma1, xdma2,
 268                                              0, channels[dev],
 269                                              pcm_channels[dev],
 270                                              0, &gus);
 271                         if (err >= 0) {
 272                                 port[dev] = possible_ports[i];
 273                                 break;
 274                         }
 275                 }
 276         }
 277         if (err < 0)
 278                 goto _err;
 279
 280         if ((err = snd_gusmax_detect(gus)) < 0)
 281                 goto _err;
 282
 283         maxcard->gus_status_reg = gus->gf1.reg_irqstat;
 284         maxcard->pcm_status_reg = gus->gf1.port + 0x10c + 2;
 285         snd_gusmax_init(dev, card, gus);
 286         if ((err = snd_gus_initialize(gus)) < 0)
 287                 goto _err;
 288
 289         if (!gus->max_flag) {
 290                 snd_printk(KERN_ERR PFX "GUS MAX soundcard was not detected at 0x%lx\n", gus->gf1.port);
 291                 err = -ENODEV;
 292                 goto _err;
 293         }
 294
 295         if (request_irq(xirq, snd_gusmax_interrupt, SA_INTERRUPT, "GUS MAX", (void *)maxcard)) {
 296                 snd_printk(KERN_ERR PFX "unable to grab IRQ %d\n", xirq);
 297                 err = -EBUSY;
 298                 goto _err;
 299         }
 300         maxcard->irq = xirq;
 301
 302         if ((err = snd_cs4231_create(card,
 303                                      gus->gf1.port + 0x10c, -1, xirq,
 304                                      xdma2 < 0 ? xdma1 : xdma2, xdma1,
 305                                      CS4231_HW_DETECT,
 306                                      CS4231_HWSHARE_IRQ |
 307                                      CS4231_HWSHARE_DMA1 |
 308                                      CS4231_HWSHARE_DMA2,
 309                                      &cs4231)) < 0)
 310                 goto _err;
 311
 312         if ((err = snd_cs4231_pcm(cs4231, 0, NULL)) < 0)
 313                 goto _err;
 314
 315         if ((err = snd_cs4231_mixer(cs4231)) < 0)
 316                 goto _err;
 317
 318         if ((err = snd_cs4231_timer(cs4231, 2, NULL)) < 0)
 319                 goto _err;
 320
 321         if (pcm_channels[dev] > 0) {
 322                 if ((err = snd_gf1_pcm_new(gus, 1, 1, NULL)) < 0)
 323                         goto _err;
 324         }
 325         if ((err = snd_gusmax_mixer(cs4231)) < 0)
 326                 goto _err;
 327
 328         if ((err = snd_gf1_rawmidi_new(gus, 0, NULL)) < 0)
 329                 goto _err;
 330
 331         sprintf(card->longname + strlen(card->longname), " at 0x%lx, irq %i, dma %i", gus->gf1.port, xirq, xdma1);
 332         if (xdma2 >= 0)
 333                 sprintf(card->longname + strlen(card->longname), "&%i", xdma2);
 334
 335         snd_card_set_dev(card, &pdev->dev);
 336
 337         if ((err = snd_card_register(card)) < 0)
 338                 goto _err;
 339
 340         maxcard->gus = gus;
 341         maxcard->cs4231 = cs4231;
 342
 343         platform_set_drvdata(pdev, card);
 344         return 0;
 345
 346  _err:
 347         snd_card_free(card);
 348         return err;
 349 }
 350
 351 static int snd_gusmax_remove(struct platform_device *devptr)
 352 {
 353         snd_card_free(platform_get_drvdata(devptr));
 354         platform_set_drvdata(devptr, NULL);
 355         return 0;
 356 }
 357
 358 #define GUSMAX_DRIVER   "snd_gusmax"
 359
 360 static struct platform_driver snd_gusmax_driver = {
 361         .probe          = snd_gusmax_probe,
 362         .remove         = snd_gusmax_remove,
 363         /* FIXME: suspend/resume */
 364         .driver         = {
 365                 .name   = GUSMAX_DRIVER
 366         },
 367 };
 368
 369 static void __init_or_module snd_gusmax_unregister_all(void)
 370 {
 371         int i;
 372
 373         for (i = 0; i < ARRAY_SIZE(devices); ++i)
 374                 platform_device_unregister(devices[i]);
 375         platform_driver_unregister(&snd_gusmax_driver);
 376 }
 377
 378 static int __init alsa_card_gusmax_init(void)
 379 {
 380         int i, cards, err;
 381
 382         err = platform_driver_register(&snd_gusmax_driver);
 383         if (err < 0)
 384                 return err;
 385
 386         cards = 0;
 387         for (i = 0; i < SNDRV_CARDS; i++) {
 388                 struct platform_device *device;
 389                 if (! enable[i])
 390                         continue;
 391                 device = platform_device_register_simple(GUSMAX_DRIVER,
 392                                                          i, NULL, 0);
 393                 if (IS_ERR(device))
 394                         continue;
 395                 if (!platform_get_drvdata(device)) {
 396                         platform_device_unregister(device);
 397                         continue;
 398                 }
 399                 devices[i] = device;
 400                 cards++;
 401         }
 402         if (!cards) {
 403 #ifdef MODULE
 404                 printk(KERN_ERR "GUS MAX soundcard not found or device busy\n");
 405 #endif
 406                 snd_gusmax_unregister_all();
 407                 return -ENODEV;
 408         }
 409         return 0;
 410 }
 411
 412 static void __exit alsa_card_gusmax_exit(void)
 413 {
 414         snd_gusmax_unregister_all();
 415 }
 416
 417 module_init(alsa_card_gusmax_init)
 418 module_exit(alsa_card_gusmax_exit)