linux/sound/isa/sb/sb16.c
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   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 *  Driver for SoundBlaster 16/AWE32/AWE64 soundcards
   4 *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
   5 */
   6
   7#include <asm/dma.h>
   8#include <linux/init.h>
   9#include <linux/pnp.h>
  10#include <linux/err.h>
  11#include <linux/isa.h>
  12#include <linux/module.h>
  13#include <sound/core.h>
  14#include <sound/sb.h>
  15#include <sound/sb16_csp.h>
  16#include <sound/mpu401.h>
  17#include <sound/opl3.h>
  18#include <sound/emu8000.h>
  19#include <sound/seq_device.h>
  20#define SNDRV_LEGACY_FIND_FREE_IRQ
  21#define SNDRV_LEGACY_FIND_FREE_DMA
  22#include <sound/initval.h>
  23
  24#ifdef SNDRV_SBAWE
  25#define PFX "sbawe: "
  26#else
  27#define PFX "sb16: "
  28#endif
  29
  30MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
  31MODULE_LICENSE("GPL");
  32#ifndef SNDRV_SBAWE
  33MODULE_DESCRIPTION("Sound Blaster 16");
  34#else
  35MODULE_DESCRIPTION("Sound Blaster AWE");
  36#endif
  37
  38#if 0
  39#define SNDRV_DEBUG_IRQ
  40#endif
  41
  42#if defined(SNDRV_SBAWE) && IS_ENABLED(CONFIG_SND_SEQUENCER)
  43#define SNDRV_SBAWE_EMU8000
  44#endif
  45
  46static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  47static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  48static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_ISAPNP; /* Enable this card */
  49#ifdef CONFIG_PNP
  50static bool isapnp[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1};
  51#endif
  52static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* 0x220,0x240,0x260,0x280 */
  53static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x330,0x300 */
  54static long fm_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
  55#ifdef SNDRV_SBAWE_EMU8000
  56static long awe_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
  57#endif
  58static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* 5,7,9,10 */
  59static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;       /* 0,1,3 */
  60static int dma16[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;      /* 5,6,7 */
  61static int mic_agc[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1};
  62#ifdef CONFIG_SND_SB16_CSP
  63static int csp[SNDRV_CARDS];
  64#endif
  65#ifdef SNDRV_SBAWE_EMU8000
  66static int seq_ports[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 4};
  67#endif
  68
  69module_param_array(index, int, NULL, 0444);
  70MODULE_PARM_DESC(index, "Index value for SoundBlaster 16 soundcard.");
  71module_param_array(id, charp, NULL, 0444);
  72MODULE_PARM_DESC(id, "ID string for SoundBlaster 16 soundcard.");
  73module_param_array(enable, bool, NULL, 0444);
  74MODULE_PARM_DESC(enable, "Enable SoundBlaster 16 soundcard.");
  75#ifdef CONFIG_PNP
  76module_param_array(isapnp, bool, NULL, 0444);
  77MODULE_PARM_DESC(isapnp, "PnP detection for specified soundcard.");
  78#endif
  79module_param_hw_array(port, long, ioport, NULL, 0444);
  80MODULE_PARM_DESC(port, "Port # for SB16 driver.");
  81module_param_hw_array(mpu_port, long, ioport, NULL, 0444);
  82MODULE_PARM_DESC(mpu_port, "MPU-401 port # for SB16 driver.");
  83module_param_hw_array(fm_port, long, ioport, NULL, 0444);
  84MODULE_PARM_DESC(fm_port, "FM port # for SB16 PnP driver.");
  85#ifdef SNDRV_SBAWE_EMU8000
  86module_param_hw_array(awe_port, long, ioport, NULL, 0444);
  87MODULE_PARM_DESC(awe_port, "AWE port # for SB16 PnP driver.");
  88#endif
  89module_param_hw_array(irq, int, irq, NULL, 0444);
  90MODULE_PARM_DESC(irq, "IRQ # for SB16 driver.");
  91module_param_hw_array(dma8, int, dma, NULL, 0444);
  92MODULE_PARM_DESC(dma8, "8-bit DMA # for SB16 driver.");
  93module_param_hw_array(dma16, int, dma, NULL, 0444);
  94MODULE_PARM_DESC(dma16, "16-bit DMA # for SB16 driver.");
  95module_param_array(mic_agc, int, NULL, 0444);
  96MODULE_PARM_DESC(mic_agc, "Mic Auto-Gain-Control switch.");
  97#ifdef CONFIG_SND_SB16_CSP
  98module_param_array(csp, int, NULL, 0444);
  99MODULE_PARM_DESC(csp, "ASP/CSP chip support.");
 100#endif
 101#ifdef SNDRV_SBAWE_EMU8000
 102module_param_array(seq_ports, int, NULL, 0444);
 103MODULE_PARM_DESC(seq_ports, "Number of sequencer ports for WaveTable synth.");
 104#endif
 105
 106#ifdef CONFIG_PNP
 107static int isa_registered;
 108static int pnp_registered;
 109#endif
 110
 111struct snd_card_sb16 {
 112        struct resource *fm_res;        /* used to block FM i/o region for legacy cards */
 113        struct snd_sb *chip;
 114#ifdef CONFIG_PNP
 115        int dev_no;
 116        struct pnp_dev *dev;
 117#ifdef SNDRV_SBAWE_EMU8000
 118        struct pnp_dev *devwt;
 119#endif
 120#endif
 121};
 122
 123#ifdef CONFIG_PNP
 124
 125static const struct pnp_card_device_id snd_sb16_pnpids[] = {
 126#ifndef SNDRV_SBAWE
 127        /* Sound Blaster 16 PnP */
 128        { .id = "CTL0024", .devs = { { "CTL0031" } } },
 129        /* Sound Blaster 16 PnP */
 130        { .id = "CTL0025", .devs = { { "CTL0031" } } },
 131        /* Sound Blaster 16 PnP */
 132        { .id = "CTL0026", .devs = { { "CTL0031" } } },
 133        /* Sound Blaster 16 PnP */
 134        { .id = "CTL0027", .devs = { { "CTL0031" } } },
 135        /* Sound Blaster 16 PnP */
 136        { .id = "CTL0028", .devs = { { "CTL0031" } } },
 137        /* Sound Blaster 16 PnP */
 138        { .id = "CTL0029", .devs = { { "CTL0031" } } },
 139        /* Sound Blaster 16 PnP */
 140        { .id = "CTL002a", .devs = { { "CTL0031" } } },
 141        /* Sound Blaster 16 PnP */
 142        /* Note: This card has also a CTL0051:StereoEnhance device!!! */
 143        { .id = "CTL002b", .devs = { { "CTL0031" } } },
 144        /* Sound Blaster 16 PnP */
 145        { .id = "CTL002c", .devs = { { "CTL0031" } } },
 146        /* Sound Blaster Vibra16S */
 147        { .id = "CTL0051", .devs = { { "CTL0001" } } },
 148        /* Sound Blaster Vibra16C */
 149        { .id = "CTL0070", .devs = { { "CTL0001" } } },
 150        /* Sound Blaster Vibra16CL - added by ctm@ardi.com */
 151        { .id = "CTL0080", .devs = { { "CTL0041" } } },
 152        /* Sound Blaster 16 'value' PnP. It says model ct4130 on the pcb, */
 153        /* but ct4131 on a sticker on the board.. */
 154        { .id = "CTL0086", .devs = { { "CTL0041" } } },
 155        /* Sound Blaster Vibra16X */
 156        { .id = "CTL00f0", .devs = { { "CTL0043" } } },
 157        /* Sound Blaster 16 (Virtual PC 2004) */
 158        { .id = "tBA03b0", .devs = { {.id="PNPb003" } } },
 159#else  /* SNDRV_SBAWE defined */
 160        /* Sound Blaster AWE 32 PnP */
 161        { .id = "CTL0035", .devs = { { "CTL0031" }, { "CTL0021" } } },
 162        /* Sound Blaster AWE 32 PnP */
 163        { .id = "CTL0039", .devs = { { "CTL0031" }, { "CTL0021" } } },
 164        /* Sound Blaster AWE 32 PnP */
 165        { .id = "CTL0042", .devs = { { "CTL0031" }, { "CTL0021" } } },
 166        /* Sound Blaster AWE 32 PnP */
 167        { .id = "CTL0043", .devs = { { "CTL0031" }, { "CTL0021" } } },
 168        /* Sound Blaster AWE 32 PnP */
 169        /* Note: This card has also a CTL0051:StereoEnhance device!!! */
 170        { .id = "CTL0044", .devs = { { "CTL0031" }, { "CTL0021" } } },
 171        /* Sound Blaster AWE 32 PnP */
 172        /* Note: This card has also a CTL0051:StereoEnhance device!!! */
 173        { .id = "CTL0045", .devs = { { "CTL0031" }, { "CTL0021" } } },
 174        /* Sound Blaster AWE 32 PnP */
 175        { .id = "CTL0046", .devs = { { "CTL0031" }, { "CTL0021" } } },
 176        /* Sound Blaster AWE 32 PnP */
 177        { .id = "CTL0047", .devs = { { "CTL0031" }, { "CTL0021" } } },
 178        /* Sound Blaster AWE 32 PnP */
 179        { .id = "CTL0048", .devs = { { "CTL0031" }, { "CTL0021" } } },
 180        /* Sound Blaster AWE 32 PnP */
 181        { .id = "CTL0054", .devs = { { "CTL0031" }, { "CTL0021" } } },
 182        /* Sound Blaster AWE 32 PnP */
 183        { .id = "CTL009a", .devs = { { "CTL0041" }, { "CTL0021" } } },
 184        /* Sound Blaster AWE 32 PnP */
 185        { .id = "CTL009c", .devs = { { "CTL0041" }, { "CTL0021" } } },
 186        /* Sound Blaster 32 PnP */
 187        { .id = "CTL009f", .devs = { { "CTL0041" }, { "CTL0021" } } },
 188        /* Sound Blaster AWE 64 PnP */
 189        { .id = "CTL009d", .devs = { { "CTL0042" }, { "CTL0022" } } },
 190        /* Sound Blaster AWE 64 PnP Gold */
 191        { .id = "CTL009e", .devs = { { "CTL0044" }, { "CTL0023" } } },
 192        /* Sound Blaster AWE 64 PnP Gold */
 193        { .id = "CTL00b2", .devs = { { "CTL0044" }, { "CTL0023" } } },
 194        /* Sound Blaster AWE 64 PnP */
 195        { .id = "CTL00c1", .devs = { { "CTL0042" }, { "CTL0022" } } },
 196        /* Sound Blaster AWE 64 PnP */
 197        { .id = "CTL00c3", .devs = { { "CTL0045" }, { "CTL0022" } } },
 198        /* Sound Blaster AWE 64 PnP */
 199        { .id = "CTL00c5", .devs = { { "CTL0045" }, { "CTL0022" } } },
 200        /* Sound Blaster AWE 64 PnP */
 201        { .id = "CTL00c7", .devs = { { "CTL0045" }, { "CTL0022" } } },
 202        /* Sound Blaster AWE 64 PnP */
 203        { .id = "CTL00e4", .devs = { { "CTL0045" }, { "CTL0022" } } },
 204        /* Sound Blaster AWE 64 PnP */
 205        { .id = "CTL00e9", .devs = { { "CTL0045" }, { "CTL0022" } } },
 206        /* Sound Blaster 16 PnP (AWE) */
 207        { .id = "CTL00ed", .devs = { { "CTL0041" }, { "CTL0070" } } },
 208        /* Generic entries */
 209        { .id = "CTLXXXX" , .devs = { { "CTL0031" }, { "CTL0021" } } },
 210        { .id = "CTLXXXX" , .devs = { { "CTL0041" }, { "CTL0021" } } },
 211        { .id = "CTLXXXX" , .devs = { { "CTL0042" }, { "CTL0022" } } },
 212        { .id = "CTLXXXX" , .devs = { { "CTL0044" }, { "CTL0023" } } },
 213        { .id = "CTLXXXX" , .devs = { { "CTL0045" }, { "CTL0022" } } },
 214#endif /* SNDRV_SBAWE */
 215        { .id = "", }
 216};
 217
 218MODULE_DEVICE_TABLE(pnp_card, snd_sb16_pnpids);
 219
 220#endif /* CONFIG_PNP */
 221
 222#ifdef SNDRV_SBAWE_EMU8000
 223#define DRIVER_NAME     "snd-card-sbawe"
 224#else
 225#define DRIVER_NAME     "snd-card-sb16"
 226#endif
 227
 228#ifdef CONFIG_PNP
 229
 230static int snd_card_sb16_pnp(int dev, struct snd_card_sb16 *acard,
 231                             struct pnp_card_link *card,
 232                             const struct pnp_card_device_id *id)
 233{
 234        struct pnp_dev *pdev;
 235        int err;
 236
 237        acard->dev = pnp_request_card_device(card, id->devs[0].id, NULL);
 238        if (acard->dev == NULL)
 239                return -ENODEV; 
 240
 241#ifdef SNDRV_SBAWE_EMU8000
 242        acard->devwt = pnp_request_card_device(card, id->devs[1].id, acard->dev);
 243#endif
 244        /* Audio initialization */
 245        pdev = acard->dev;
 246
 247        err = pnp_activate_dev(pdev); 
 248        if (err < 0) { 
 249                snd_printk(KERN_ERR PFX "AUDIO pnp configure failure\n"); 
 250                return err; 
 251        } 
 252        port[dev] = pnp_port_start(pdev, 0);
 253        mpu_port[dev] = pnp_port_start(pdev, 1);
 254        fm_port[dev] = pnp_port_start(pdev, 2);
 255        dma8[dev] = pnp_dma(pdev, 0);
 256        dma16[dev] = pnp_dma(pdev, 1);
 257        irq[dev] = pnp_irq(pdev, 0);
 258        snd_printdd("pnp SB16: port=0x%lx, mpu port=0x%lx, fm port=0x%lx\n",
 259                        port[dev], mpu_port[dev], fm_port[dev]);
 260        snd_printdd("pnp SB16: dma1=%i, dma2=%i, irq=%i\n",
 261                        dma8[dev], dma16[dev], irq[dev]);
 262#ifdef SNDRV_SBAWE_EMU8000
 263        /* WaveTable initialization */
 264        pdev = acard->devwt;
 265        if (pdev != NULL) {
 266                err = pnp_activate_dev(pdev); 
 267                if (err < 0) { 
 268                        goto __wt_error; 
 269                } 
 270                awe_port[dev] = pnp_port_start(pdev, 0);
 271                snd_printdd("pnp SB16: wavetable port=0x%llx\n",
 272                                (unsigned long long)pnp_port_start(pdev, 0));
 273        } else {
 274__wt_error:
 275                if (pdev) {
 276                        pnp_release_card_device(pdev);
 277                        snd_printk(KERN_ERR PFX "WaveTable pnp configure failure\n");
 278                }
 279                acard->devwt = NULL;
 280                awe_port[dev] = -1;
 281        }
 282#endif
 283        return 0;
 284}
 285
 286#endif /* CONFIG_PNP */
 287
 288static void snd_sb16_free(struct snd_card *card)
 289{
 290        struct snd_card_sb16 *acard = card->private_data;
 291        
 292        if (acard == NULL)
 293                return;
 294        release_and_free_resource(acard->fm_res);
 295}
 296
 297#ifdef CONFIG_PNP
 298#define is_isapnp_selected(dev)         isapnp[dev]
 299#else
 300#define is_isapnp_selected(dev)         0
 301#endif
 302
 303static int snd_sb16_card_new(struct device *devptr, int dev,
 304                             struct snd_card **cardp)
 305{
 306        struct snd_card *card;
 307        int err;
 308
 309        err = snd_card_new(devptr, index[dev], id[dev], THIS_MODULE,
 310                           sizeof(struct snd_card_sb16), &card);
 311        if (err < 0)
 312                return err;
 313        card->private_free = snd_sb16_free;
 314        *cardp = card;
 315        return 0;
 316}
 317
 318static int snd_sb16_probe(struct snd_card *card, int dev)
 319{
 320        int xirq, xdma8, xdma16;
 321        struct snd_sb *chip;
 322        struct snd_card_sb16 *acard = card->private_data;
 323        struct snd_opl3 *opl3;
 324        struct snd_hwdep *synth = NULL;
 325#ifdef CONFIG_SND_SB16_CSP
 326        struct snd_hwdep *xcsp = NULL;
 327#endif
 328        unsigned long flags;
 329        int err;
 330
 331        xirq = irq[dev];
 332        xdma8 = dma8[dev];
 333        xdma16 = dma16[dev];
 334
 335        if ((err = snd_sbdsp_create(card,
 336                                    port[dev],
 337                                    xirq,
 338                                    snd_sb16dsp_interrupt,
 339                                    xdma8,
 340                                    xdma16,
 341                                    SB_HW_AUTO,
 342                                    &chip)) < 0)
 343                return err;
 344
 345        acard->chip = chip;
 346        if (chip->hardware != SB_HW_16) {
 347                snd_printk(KERN_ERR PFX "SB 16 chip was not detected at 0x%lx\n", port[dev]);
 348                return -ENODEV;
 349        }
 350        chip->mpu_port = mpu_port[dev];
 351        if (! is_isapnp_selected(dev) && (err = snd_sb16dsp_configure(chip)) < 0)
 352                return err;
 353
 354        if ((err = snd_sb16dsp_pcm(chip, 0)) < 0)
 355                return err;
 356
 357        strcpy(card->driver,
 358#ifdef SNDRV_SBAWE_EMU8000
 359                        awe_port[dev] > 0 ? "SB AWE" :
 360#endif
 361                        "SB16");
 362        strcpy(card->shortname, chip->name);
 363        sprintf(card->longname, "%s at 0x%lx, irq %i, dma ",
 364                chip->name,
 365                chip->port,
 366                xirq);
 367        if (xdma8 >= 0)
 368                sprintf(card->longname + strlen(card->longname), "%d", xdma8);
 369        if (xdma16 >= 0)
 370                sprintf(card->longname + strlen(card->longname), "%s%d",
 371                        xdma8 >= 0 ? "&" : "", xdma16);
 372
 373        if (chip->mpu_port > 0 && chip->mpu_port != SNDRV_AUTO_PORT) {
 374                if ((err = snd_mpu401_uart_new(card, 0, MPU401_HW_SB,
 375                                               chip->mpu_port,
 376                                               MPU401_INFO_IRQ_HOOK, -1,
 377                                               &chip->rmidi)) < 0)
 378                        return err;
 379                chip->rmidi_callback = snd_mpu401_uart_interrupt;
 380        }
 381
 382#ifdef SNDRV_SBAWE_EMU8000
 383        if (awe_port[dev] == SNDRV_AUTO_PORT)
 384                awe_port[dev] = 0; /* disable */
 385#endif
 386
 387        if (fm_port[dev] > 0 && fm_port[dev] != SNDRV_AUTO_PORT) {
 388                if (snd_opl3_create(card, fm_port[dev], fm_port[dev] + 2,
 389                                    OPL3_HW_OPL3,
 390                                    acard->fm_res != NULL || fm_port[dev] == port[dev],
 391                                    &opl3) < 0) {
 392                        snd_printk(KERN_ERR PFX "no OPL device at 0x%lx-0x%lx\n",
 393                                   fm_port[dev], fm_port[dev] + 2);
 394                } else {
 395#ifdef SNDRV_SBAWE_EMU8000
 396                        int seqdev = awe_port[dev] > 0 ? 2 : 1;
 397#else
 398                        int seqdev = 1;
 399#endif
 400                        if ((err = snd_opl3_hwdep_new(opl3, 0, seqdev, &synth)) < 0)
 401                                return err;
 402                }
 403        }
 404
 405        if ((err = snd_sbmixer_new(chip)) < 0)
 406                return err;
 407
 408#ifdef CONFIG_SND_SB16_CSP
 409        /* CSP chip on SB16ASP/AWE32 */
 410        if ((chip->hardware == SB_HW_16) && csp[dev]) {
 411                snd_sb_csp_new(chip, synth != NULL ? 1 : 0, &xcsp);
 412                if (xcsp) {
 413                        chip->csp = xcsp->private_data;
 414                        chip->hardware = SB_HW_16CSP;
 415                } else {
 416                        snd_printk(KERN_INFO PFX "warning - CSP chip not detected on soundcard #%i\n", dev + 1);
 417                }
 418        }
 419#endif
 420#ifdef SNDRV_SBAWE_EMU8000
 421        if (awe_port[dev] > 0) {
 422                if ((err = snd_emu8000_new(card, 1, awe_port[dev],
 423                                           seq_ports[dev], NULL)) < 0) {
 424                        snd_printk(KERN_ERR PFX "fatal error - EMU-8000 synthesizer not detected at 0x%lx\n", awe_port[dev]);
 425
 426                        return err;
 427                }
 428        }
 429#endif
 430
 431        /* setup Mic AGC */
 432        spin_lock_irqsave(&chip->mixer_lock, flags);
 433        snd_sbmixer_write(chip, SB_DSP4_MIC_AGC,
 434                (snd_sbmixer_read(chip, SB_DSP4_MIC_AGC) & 0x01) |
 435                (mic_agc[dev] ? 0x00 : 0x01));
 436        spin_unlock_irqrestore(&chip->mixer_lock, flags);
 437
 438        if ((err = snd_card_register(card)) < 0)
 439                return err;
 440
 441        return 0;
 442}
 443
 444#ifdef CONFIG_PM
 445static int snd_sb16_suspend(struct snd_card *card, pm_message_t state)
 446{
 447        struct snd_card_sb16 *acard = card->private_data;
 448        struct snd_sb *chip = acard->chip;
 449
 450        snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
 451        snd_sbmixer_suspend(chip);
 452        return 0;
 453}
 454
 455static int snd_sb16_resume(struct snd_card *card)
 456{
 457        struct snd_card_sb16 *acard = card->private_data;
 458        struct snd_sb *chip = acard->chip;
 459
 460        snd_sbdsp_reset(chip);
 461        snd_sbmixer_resume(chip);
 462        snd_power_change_state(card, SNDRV_CTL_POWER_D0);
 463        return 0;
 464}
 465#endif
 466
 467static int snd_sb16_isa_probe1(int dev, struct device *pdev)
 468{
 469        struct snd_card_sb16 *acard;
 470        struct snd_card *card;
 471        int err;
 472
 473        err = snd_sb16_card_new(pdev, dev, &card);
 474        if (err < 0)
 475                return err;
 476
 477        acard = card->private_data;
 478        /* non-PnP FM port address is hardwired with base port address */
 479        fm_port[dev] = port[dev];
 480        /* block the 0x388 port to avoid PnP conflicts */
 481        acard->fm_res = request_region(0x388, 4, "SoundBlaster FM");
 482#ifdef SNDRV_SBAWE_EMU8000
 483        /* non-PnP AWE port address is hardwired with base port address */
 484        awe_port[dev] = port[dev] + 0x400;
 485#endif
 486
 487        if ((err = snd_sb16_probe(card, dev)) < 0) {
 488                snd_card_free(card);
 489                return err;
 490        }
 491        dev_set_drvdata(pdev, card);
 492        return 0;
 493}
 494
 495
 496static int snd_sb16_isa_match(struct device *pdev, unsigned int dev)
 497{
 498        return enable[dev] && !is_isapnp_selected(dev);
 499}
 500
 501static int snd_sb16_isa_probe(struct device *pdev, unsigned int dev)
 502{
 503        int err;
 504        static const int possible_irqs[] = {5, 9, 10, 7, -1};
 505        static const int possible_dmas8[] = {1, 3, 0, -1};
 506        static const int possible_dmas16[] = {5, 6, 7, -1};
 507
 508        if (irq[dev] == SNDRV_AUTO_IRQ) {
 509                if ((irq[dev] = snd_legacy_find_free_irq(possible_irqs)) < 0) {
 510                        snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
 511                        return -EBUSY;
 512                }
 513        }
 514        if (dma8[dev] == SNDRV_AUTO_DMA) {
 515                if ((dma8[dev] = snd_legacy_find_free_dma(possible_dmas8)) < 0) {
 516                        snd_printk(KERN_ERR PFX "unable to find a free 8-bit DMA\n");
 517                        return -EBUSY;
 518                }
 519        }
 520        if (dma16[dev] == SNDRV_AUTO_DMA) {
 521                if ((dma16[dev] = snd_legacy_find_free_dma(possible_dmas16)) < 0) {
 522                        snd_printk(KERN_ERR PFX "unable to find a free 16-bit DMA\n");
 523                        return -EBUSY;
 524                }
 525        }
 526
 527        if (port[dev] != SNDRV_AUTO_PORT)
 528                return snd_sb16_isa_probe1(dev, pdev);
 529        else {
 530                static const int possible_ports[] = {0x220, 0x240, 0x260, 0x280};
 531                int i;
 532                for (i = 0; i < ARRAY_SIZE(possible_ports); i++) {
 533                        port[dev] = possible_ports[i];
 534                        err = snd_sb16_isa_probe1(dev, pdev);
 535                        if (! err)
 536                                return 0;
 537                }
 538                return err;
 539        }
 540}
 541
 542static void snd_sb16_isa_remove(struct device *pdev, unsigned int dev)
 543{
 544        snd_card_free(dev_get_drvdata(pdev));
 545}
 546
 547#ifdef CONFIG_PM
 548static int snd_sb16_isa_suspend(struct device *dev, unsigned int n,
 549                                pm_message_t state)
 550{
 551        return snd_sb16_suspend(dev_get_drvdata(dev), state);
 552}
 553
 554static int snd_sb16_isa_resume(struct device *dev, unsigned int n)
 555{
 556        return snd_sb16_resume(dev_get_drvdata(dev));
 557}
 558#endif
 559
 560#ifdef SNDRV_SBAWE
 561#define DEV_NAME "sbawe"
 562#else
 563#define DEV_NAME "sb16"
 564#endif
 565
 566static struct isa_driver snd_sb16_isa_driver = {
 567        .match          = snd_sb16_isa_match,
 568        .probe          = snd_sb16_isa_probe,
 569        .remove         = snd_sb16_isa_remove,
 570#ifdef CONFIG_PM
 571        .suspend        = snd_sb16_isa_suspend,
 572        .resume         = snd_sb16_isa_resume,
 573#endif
 574        .driver         = {
 575                .name   = DEV_NAME
 576        },
 577};
 578
 579
 580#ifdef CONFIG_PNP
 581static int snd_sb16_pnp_detect(struct pnp_card_link *pcard,
 582                               const struct pnp_card_device_id *pid)
 583{
 584        static int dev;
 585        struct snd_card *card;
 586        int res;
 587
 588        for ( ; dev < SNDRV_CARDS; dev++) {
 589                if (!enable[dev] || !isapnp[dev])
 590                        continue;
 591                res = snd_sb16_card_new(&pcard->card->dev, dev, &card);
 592                if (res < 0)
 593                        return res;
 594                if ((res = snd_card_sb16_pnp(dev, card->private_data, pcard, pid)) < 0 ||
 595                    (res = snd_sb16_probe(card, dev)) < 0) {
 596                        snd_card_free(card);
 597                        return res;
 598                }
 599                pnp_set_card_drvdata(pcard, card);
 600                dev++;
 601                return 0;
 602        }
 603
 604        return -ENODEV;
 605}
 606
 607static void snd_sb16_pnp_remove(struct pnp_card_link *pcard)
 608{
 609        snd_card_free(pnp_get_card_drvdata(pcard));
 610        pnp_set_card_drvdata(pcard, NULL);
 611}
 612
 613#ifdef CONFIG_PM
 614static int snd_sb16_pnp_suspend(struct pnp_card_link *pcard, pm_message_t state)
 615{
 616        return snd_sb16_suspend(pnp_get_card_drvdata(pcard), state);
 617}
 618static int snd_sb16_pnp_resume(struct pnp_card_link *pcard)
 619{
 620        return snd_sb16_resume(pnp_get_card_drvdata(pcard));
 621}
 622#endif
 623
 624static struct pnp_card_driver sb16_pnpc_driver = {
 625        .flags = PNP_DRIVER_RES_DISABLE,
 626#ifdef SNDRV_SBAWE
 627        .name = "sbawe",
 628#else
 629        .name = "sb16",
 630#endif
 631        .id_table = snd_sb16_pnpids,
 632        .probe = snd_sb16_pnp_detect,
 633        .remove = snd_sb16_pnp_remove,
 634#ifdef CONFIG_PM
 635        .suspend = snd_sb16_pnp_suspend,
 636        .resume = snd_sb16_pnp_resume,
 637#endif
 638};
 639
 640#endif /* CONFIG_PNP */
 641
 642static int __init alsa_card_sb16_init(void)
 643{
 644        int err;
 645
 646        err = isa_register_driver(&snd_sb16_isa_driver, SNDRV_CARDS);
 647#ifdef CONFIG_PNP
 648        if (!err)
 649                isa_registered = 1;
 650
 651        err = pnp_register_card_driver(&sb16_pnpc_driver);
 652        if (!err)
 653                pnp_registered = 1;
 654
 655        if (isa_registered)
 656                err = 0;
 657#endif
 658        return err;
 659}
 660
 661static void __exit alsa_card_sb16_exit(void)
 662{
 663#ifdef CONFIG_PNP
 664        if (pnp_registered)
 665                pnp_unregister_card_driver(&sb16_pnpc_driver);
 666        if (isa_registered)
 667#endif
 668                isa_unregister_driver(&snd_sb16_isa_driver);
 669}
 670
 671module_init(alsa_card_sb16_init)
 672module_exit(alsa_card_sb16_exit)
 673