linux/sound/isa/gus/gusmax.c
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   1/*
   2 *  Driver for Gravis UltraSound MAX soundcard
   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/err.h>
  24#include <linux/isa.h>
  25#include <linux/delay.h>
  26#include <linux/time.h>
  27#include <linux/module.h>
  28#include <asm/dma.h>
  29#include <sound/core.h>
  30#include <sound/gus.h>
  31#include <sound/wss.h>
  32#define SNDRV_LEGACY_FIND_FREE_IRQ
  33#define SNDRV_LEGACY_FIND_FREE_DMA
  34#include <sound/initval.h>
  35
  36MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
  37MODULE_DESCRIPTION("Gravis UltraSound MAX");
  38MODULE_LICENSE("GPL");
  39MODULE_SUPPORTED_DEVICE("{{Gravis,UltraSound MAX}}");
  40
  41static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  42static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  43static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
  44static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* 0x220,0x230,0x240,0x250,0x260 */
  45static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* 2,3,5,9,11,12,15 */
  46static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 1,3,5,6,7 */
  47static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 1,3,5,6,7 */
  48static int joystick_dac[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 29};
  49                                /* 0 to 31, (0.59V-4.52V or 0.389V-2.98V) */
  50static int channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 24};
  51static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2};
  52
  53module_param_array(index, int, NULL, 0444);
  54MODULE_PARM_DESC(index, "Index value for GUS MAX soundcard.");
  55module_param_array(id, charp, NULL, 0444);
  56MODULE_PARM_DESC(id, "ID string for GUS MAX soundcard.");
  57module_param_array(enable, bool, NULL, 0444);
  58MODULE_PARM_DESC(enable, "Enable GUS MAX soundcard.");
  59module_param_array(port, long, NULL, 0444);
  60MODULE_PARM_DESC(port, "Port # for GUS MAX driver.");
  61module_param_array(irq, int, NULL, 0444);
  62MODULE_PARM_DESC(irq, "IRQ # for GUS MAX driver.");
  63module_param_array(dma1, int, NULL, 0444);
  64MODULE_PARM_DESC(dma1, "DMA1 # for GUS MAX driver.");
  65module_param_array(dma2, int, NULL, 0444);
  66MODULE_PARM_DESC(dma2, "DMA2 # for GUS MAX driver.");
  67module_param_array(joystick_dac, int, NULL, 0444);
  68MODULE_PARM_DESC(joystick_dac, "Joystick DAC level 0.59V-4.52V or 0.389V-2.98V for GUS MAX driver.");
  69module_param_array(channels, int, NULL, 0444);
  70MODULE_PARM_DESC(channels, "Used GF1 channels for GUS MAX driver.");
  71module_param_array(pcm_channels, int, NULL, 0444);
  72MODULE_PARM_DESC(pcm_channels, "Reserved PCM channels for GUS MAX driver.");
  73
  74struct snd_gusmax {
  75        int irq;
  76        struct snd_card *card;
  77        struct snd_gus_card *gus;
  78        struct snd_wss *wss;
  79        unsigned short gus_status_reg;
  80        unsigned short pcm_status_reg;
  81};
  82
  83#define PFX     "gusmax: "
  84
  85static int snd_gusmax_detect(struct snd_gus_card *gus)
  86{
  87        unsigned char d;
  88
  89        snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0);   /* reset GF1 */
  90        if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 0) {
  91                snd_printdd("[0x%lx] check 1 failed - 0x%x\n", gus->gf1.port, d);
  92                return -ENODEV;
  93        }
  94        udelay(160);
  95        snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1);   /* release reset */
  96        udelay(160);
  97        if (((d = snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET)) & 0x07) != 1) {
  98                snd_printdd("[0x%lx] check 2 failed - 0x%x\n", gus->gf1.port, d);
  99                return -ENODEV;
 100        }
 101
 102        return 0;
 103}
 104
 105static irqreturn_t snd_gusmax_interrupt(int irq, void *dev_id)
 106{
 107        struct snd_gusmax *maxcard = dev_id;
 108        int loop, max = 5;
 109        int handled = 0;
 110
 111        do {
 112                loop = 0;
 113                if (inb(maxcard->gus_status_reg)) {
 114                        handled = 1;
 115                        snd_gus_interrupt(irq, maxcard->gus);
 116                        loop++;
 117                }
 118                if (inb(maxcard->pcm_status_reg) & 0x01) { /* IRQ bit is set? */
 119                        handled = 1;
 120                        snd_wss_interrupt(irq, maxcard->wss);
 121                        loop++;
 122                }
 123        } while (loop && --max > 0);
 124        return IRQ_RETVAL(handled);
 125}
 126
 127static void snd_gusmax_init(int dev, struct snd_card *card,
 128                            struct snd_gus_card *gus)
 129{
 130        gus->equal_irq = 1;
 131        gus->codec_flag = 1;
 132        gus->joystick_dac = joystick_dac[dev];
 133        /* init control register */
 134        gus->max_cntrl_val = (gus->gf1.port >> 4) & 0x0f;
 135        if (gus->gf1.dma1 > 3)
 136                gus->max_cntrl_val |= 0x10;
 137        if (gus->gf1.dma2 > 3)
 138                gus->max_cntrl_val |= 0x20;
 139        gus->max_cntrl_val |= 0x40;
 140        outb(gus->max_cntrl_val, GUSP(gus, MAXCNTRLPORT));
 141}
 142
 143static int snd_gusmax_mixer(struct snd_wss *chip)
 144{
 145        struct snd_card *card = chip->card;
 146        struct snd_ctl_elem_id id1, id2;
 147        int err;
 148        
 149        memset(&id1, 0, sizeof(id1));
 150        memset(&id2, 0, sizeof(id2));
 151        id1.iface = id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 152        /* reassign AUXA to SYNTHESIZER */
 153        strcpy(id1.name, "Aux Playback Switch");
 154        strcpy(id2.name, "Synth Playback Switch");
 155        if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
 156                return err;
 157        strcpy(id1.name, "Aux Playback Volume");
 158        strcpy(id2.name, "Synth Playback Volume");
 159        if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
 160                return err;
 161        /* reassign AUXB to CD */
 162        strcpy(id1.name, "Aux Playback Switch"); id1.index = 1;
 163        strcpy(id2.name, "CD Playback Switch");
 164        if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
 165                return err;
 166        strcpy(id1.name, "Aux Playback Volume");
 167        strcpy(id2.name, "CD Playback Volume");
 168        if ((err = snd_ctl_rename_id(card, &id1, &id2)) < 0)
 169                return err;
 170#if 0
 171        /* reassign Mono Input to MIC */
 172        if (snd_mixer_group_rename(mixer,
 173                                SNDRV_MIXER_IN_MONO, 0,
 174                                SNDRV_MIXER_IN_MIC, 0) < 0)
 175                goto __error;
 176        if (snd_mixer_elem_rename(mixer,
 177                                SNDRV_MIXER_IN_MONO, 0, SNDRV_MIXER_ETYPE_INPUT,
 178                                SNDRV_MIXER_IN_MIC, 0) < 0)
 179                goto __error;
 180        if (snd_mixer_elem_rename(mixer,
 181                                "Mono Capture Volume", 0, SNDRV_MIXER_ETYPE_VOLUME1,
 182                                "Mic Capture Volume", 0) < 0)
 183                goto __error;
 184        if (snd_mixer_elem_rename(mixer,
 185                                "Mono Capture Switch", 0, SNDRV_MIXER_ETYPE_SWITCH1,
 186                                "Mic Capture Switch", 0) < 0)
 187                goto __error;
 188#endif
 189        return 0;
 190}
 191
 192static void snd_gusmax_free(struct snd_card *card)
 193{
 194        struct snd_gusmax *maxcard = card->private_data;
 195        
 196        if (maxcard == NULL)
 197                return;
 198        if (maxcard->irq >= 0)
 199                free_irq(maxcard->irq, (void *)maxcard);
 200}
 201
 202static int snd_gusmax_match(struct device *pdev, unsigned int dev)
 203{
 204        return enable[dev];
 205}
 206
 207static int snd_gusmax_probe(struct device *pdev, unsigned int dev)
 208{
 209        static int possible_irqs[] = {5, 11, 12, 9, 7, 15, 3, -1};
 210        static int possible_dmas[] = {5, 6, 7, 1, 3, -1};
 211        int xirq, xdma1, xdma2, err;
 212        struct snd_card *card;
 213        struct snd_gus_card *gus = NULL;
 214        struct snd_wss *wss;
 215        struct snd_gusmax *maxcard;
 216
 217        err = snd_card_create(index[dev], id[dev], THIS_MODULE,
 218                              sizeof(struct snd_gusmax), &card);
 219        if (err < 0)
 220                return err;
 221        card->private_free = snd_gusmax_free;
 222        maxcard = card->private_data;
 223        maxcard->card = card;
 224        maxcard->irq = -1;
 225        
 226        xirq = irq[dev];
 227        if (xirq == SNDRV_AUTO_IRQ) {
 228                if ((xirq = snd_legacy_find_free_irq(possible_irqs)) < 0) {
 229                        snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
 230                        err = -EBUSY;
 231                        goto _err;
 232                }
 233        }
 234        xdma1 = dma1[dev];
 235        if (xdma1 == SNDRV_AUTO_DMA) {
 236                if ((xdma1 = snd_legacy_find_free_dma(possible_dmas)) < 0) {
 237                        snd_printk(KERN_ERR PFX "unable to find a free DMA1\n");
 238                        err = -EBUSY;
 239                        goto _err;
 240                }
 241        }
 242        xdma2 = dma2[dev];
 243        if (xdma2 == SNDRV_AUTO_DMA) {
 244                if ((xdma2 = snd_legacy_find_free_dma(possible_dmas)) < 0) {
 245                        snd_printk(KERN_ERR PFX "unable to find a free DMA2\n");
 246                        err = -EBUSY;
 247                        goto _err;
 248                }
 249        }
 250
 251        if (port[dev] != SNDRV_AUTO_PORT) {
 252                err = snd_gus_create(card,
 253                                     port[dev],
 254                                     -xirq, xdma1, xdma2,
 255                                     0, channels[dev],
 256                                     pcm_channels[dev],
 257                                     0, &gus);
 258        } else {
 259                static unsigned long possible_ports[] = {
 260                        0x220, 0x230, 0x240, 0x250, 0x260
 261                };
 262                int i;
 263                for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
 264                        err = snd_gus_create(card,
 265                                             possible_ports[i],
 266                                             -xirq, xdma1, xdma2,
 267                                             0, channels[dev],
 268                                             pcm_channels[dev],
 269                                             0, &gus);
 270                        if (err >= 0) {
 271                                port[dev] = possible_ports[i];
 272                                break;
 273                        }
 274                }
 275        }
 276        if (err < 0)
 277                goto _err;
 278
 279        if ((err = snd_gusmax_detect(gus)) < 0)
 280                goto _err;
 281
 282        maxcard->gus_status_reg = gus->gf1.reg_irqstat;
 283        maxcard->pcm_status_reg = gus->gf1.port + 0x10c + 2;
 284        snd_gusmax_init(dev, card, gus);
 285        if ((err = snd_gus_initialize(gus)) < 0)
 286                goto _err;
 287
 288        if (!gus->max_flag) {
 289                snd_printk(KERN_ERR PFX "GUS MAX soundcard was not detected at 0x%lx\n", gus->gf1.port);
 290                err = -ENODEV;
 291                goto _err;
 292        }
 293
 294        if (request_irq(xirq, snd_gusmax_interrupt, 0, "GUS MAX", (void *)maxcard)) {
 295                snd_printk(KERN_ERR PFX "unable to grab IRQ %d\n", xirq);
 296                err = -EBUSY;
 297                goto _err;
 298        }
 299        maxcard->irq = xirq;
 300        
 301        err = snd_wss_create(card,
 302                             gus->gf1.port + 0x10c, -1, xirq,
 303                             xdma2 < 0 ? xdma1 : xdma2, xdma1,
 304                             WSS_HW_DETECT,
 305                             WSS_HWSHARE_IRQ |
 306                             WSS_HWSHARE_DMA1 |
 307                             WSS_HWSHARE_DMA2,
 308                             &wss);
 309        if (err < 0)
 310                goto _err;
 311
 312        err = snd_wss_pcm(wss, 0, NULL);
 313        if (err < 0)
 314                goto _err;
 315
 316        err = snd_wss_mixer(wss);
 317        if (err < 0)
 318                goto _err;
 319
 320        err = snd_wss_timer(wss, 2, NULL);
 321        if (err < 0)
 322                goto _err;
 323
 324        if (pcm_channels[dev] > 0) {
 325                if ((err = snd_gf1_pcm_new(gus, 1, 1, NULL)) < 0)
 326                        goto _err;
 327        }
 328        err = snd_gusmax_mixer(wss);
 329        if (err < 0)
 330                goto _err;
 331
 332        err = snd_gf1_rawmidi_new(gus, 0, NULL);
 333        if (err < 0)
 334                goto _err;
 335
 336        sprintf(card->longname + strlen(card->longname), " at 0x%lx, irq %i, dma %i", gus->gf1.port, xirq, xdma1);
 337        if (xdma2 >= 0)
 338                sprintf(card->longname + strlen(card->longname), "&%i", xdma2);
 339
 340        snd_card_set_dev(card, pdev);
 341
 342        err = snd_card_register(card);
 343        if (err < 0)
 344                goto _err;
 345                
 346        maxcard->gus = gus;
 347        maxcard->wss = wss;
 348
 349        dev_set_drvdata(pdev, card);
 350        return 0;
 351
 352 _err:
 353        snd_card_free(card);
 354        return err;
 355}
 356
 357static int snd_gusmax_remove(struct device *devptr, unsigned int dev)
 358{
 359        snd_card_free(dev_get_drvdata(devptr));
 360        return 0;
 361}
 362
 363#define DEV_NAME "gusmax"
 364
 365static struct isa_driver snd_gusmax_driver = {
 366        .match          = snd_gusmax_match,
 367        .probe          = snd_gusmax_probe,
 368        .remove         = snd_gusmax_remove,
 369        /* FIXME: suspend/resume */
 370        .driver         = {
 371                .name   = DEV_NAME
 372        },
 373};
 374
 375static int __init alsa_card_gusmax_init(void)
 376{
 377        return isa_register_driver(&snd_gusmax_driver, SNDRV_CARDS);
 378}
 379
 380static void __exit alsa_card_gusmax_exit(void)
 381{
 382        isa_unregister_driver(&snd_gusmax_driver);
 383}
 384
 385module_init(alsa_card_gusmax_init)
 386module_exit(alsa_card_gusmax_exit)
 387