linux/sound/oss/waveartist.c
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   1/*
   2 * linux/sound/oss/waveartist.c
   3 *
   4 * The low level driver for the RWA010 Rockwell Wave Artist
   5 * codec chip used in the Rebel.com NetWinder.
   6 *
   7 * Cleaned up and integrated into 2.1 by Russell King (rmk@arm.linux.org.uk)
   8 * and Pat Beirne (patb@corel.ca)
   9 *
  10 *
  11 * Copyright (C) by Rebel.com 1998-1999
  12 *
  13 * RWA010 specs received under NDA from Rockwell
  14 *
  15 * Copyright (C) by Hannu Savolainen 1993-1997
  16 *
  17 * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
  18 * Version 2 (June 1991). See the "COPYING" file distributed with this software
  19 * for more info.
  20 *
  21 * Changes:
  22 * 11-10-2000   Bartlomiej Zolnierkiewicz <bkz@linux-ide.org>
  23 *              Added __init to waveartist_init()
  24 */
  25
  26/* Debugging */
  27#define DEBUG_CMD       1
  28#define DEBUG_OUT       2
  29#define DEBUG_IN        4
  30#define DEBUG_INTR      8
  31#define DEBUG_MIXER     16
  32#define DEBUG_TRIGGER   32
  33
  34#define debug_flg (0)
  35
  36#include <linux/module.h>
  37#include <linux/init.h>
  38#include <linux/sched.h>
  39#include <linux/interrupt.h>
  40#include <linux/delay.h>
  41#include <linux/spinlock.h>
  42#include <linux/bitops.h>
  43
  44#include <asm/system.h>
  45
  46#include "sound_config.h"
  47#include "waveartist.h"
  48
  49#ifdef CONFIG_ARM
  50#include <mach/hardware.h>
  51#include <asm/mach-types.h>
  52#endif
  53
  54#ifndef NO_DMA
  55#define NO_DMA  255
  56#endif
  57
  58#define SUPPORTED_MIXER_DEVICES         (SOUND_MASK_SYNTH      |\
  59                                         SOUND_MASK_PCM        |\
  60                                         SOUND_MASK_LINE       |\
  61                                         SOUND_MASK_MIC        |\
  62                                         SOUND_MASK_LINE1      |\
  63                                         SOUND_MASK_RECLEV     |\
  64                                         SOUND_MASK_VOLUME     |\
  65                                         SOUND_MASK_IMIX)
  66
  67static unsigned short levels[SOUND_MIXER_NRDEVICES] = {
  68        0x5555,         /* Master Volume         */
  69        0x0000,         /* Bass                  */
  70        0x0000,         /* Treble                */
  71        0x2323,         /* Synth (FM)            */
  72        0x4b4b,         /* PCM                   */
  73        0x6464,         /* PC Speaker            */
  74        0x0000,         /* Ext Line              */
  75        0x0000,         /* Mic                   */
  76        0x0000,         /* CD                    */
  77        0x6464,         /* Recording monitor     */
  78        0x0000,         /* SB PCM (ALT PCM)      */
  79        0x0000,         /* Recording level       */
  80        0x6464,         /* Input gain            */
  81        0x6464,         /* Output gain           */
  82        0x0000,         /* Line1 (Aux1)          */
  83        0x0000,         /* Line2 (Aux2)          */
  84        0x0000,         /* Line3 (Aux3)          */
  85        0x0000,         /* Digital1              */
  86        0x0000,         /* Digital2              */
  87        0x0000,         /* Digital3              */
  88        0x0000,         /* Phone In              */
  89        0x6464,         /* Phone Out             */
  90        0x0000,         /* Video                 */
  91        0x0000,         /* Radio                 */
  92        0x0000          /* Monitor               */
  93};
  94
  95typedef struct {
  96        struct address_info  hw;        /* hardware */
  97        char            *chip_name;
  98
  99        int             xfer_count;
 100        int             audio_mode;
 101        int             open_mode;
 102        int             audio_flags;
 103        int             record_dev;
 104        int             playback_dev;
 105        int             dev_no;
 106
 107        /* Mixer parameters */
 108        const struct waveartist_mixer_info *mix;
 109
 110        unsigned short  *levels;           /* cache of volume settings   */
 111        int             recmask;           /* currently enabled recording device! */
 112
 113#ifdef CONFIG_ARCH_NETWINDER
 114        signed int      slider_vol;        /* hardware slider volume     */
 115        unsigned int    handset_detect  :1;
 116        unsigned int    telephone_detect:1;
 117        unsigned int    no_autoselect   :1;/* handset/telephone autoselects a path */
 118        unsigned int    spkr_mute_state :1;/* set by ioctl or autoselect */
 119        unsigned int    line_mute_state :1;/* set by ioctl or autoselect */
 120        unsigned int    use_slider      :1;/* use slider setting for o/p vol */
 121#endif
 122} wavnc_info;
 123
 124/*
 125 * This is the implementation specific mixer information.
 126 */
 127struct waveartist_mixer_info {
 128        unsigned int    supported_devs;    /* Supported devices */
 129        unsigned int    recording_devs;    /* Recordable devies */
 130        unsigned int    stereo_devs;       /* Stereo devices    */
 131
 132        unsigned int    (*select_input)(wavnc_info *, unsigned int,
 133                                        unsigned char *, unsigned char *);
 134        int             (*decode_mixer)(wavnc_info *, int,
 135                                        unsigned char, unsigned char);
 136        int             (*get_mixer)(wavnc_info *, int);
 137};
 138
 139typedef struct wavnc_port_info {
 140        int             open_mode;
 141        int             speed;
 142        int             channels;
 143        int             audio_format;
 144} wavnc_port_info;
 145
 146static int              nr_waveartist_devs;
 147static wavnc_info       adev_info[MAX_AUDIO_DEV];
 148static DEFINE_SPINLOCK(waveartist_lock);
 149
 150#ifndef CONFIG_ARCH_NETWINDER
 151#define machine_is_netwinder() 0
 152#else
 153static struct timer_list vnc_timer;
 154static void vnc_configure_mixer(wavnc_info *devc, unsigned int input_mask);
 155static int vnc_private_ioctl(int dev, unsigned int cmd, int __user *arg);
 156static void vnc_slider_tick(unsigned long data);
 157#endif
 158
 159static inline void
 160waveartist_set_ctlr(struct address_info *hw, unsigned char clear, unsigned char set)
 161{
 162        unsigned int ctlr_port = hw->io_base + CTLR;
 163
 164        clear = ~clear & inb(ctlr_port);
 165
 166        outb(clear | set, ctlr_port);
 167}
 168
 169/* Toggle IRQ acknowledge line
 170 */
 171static inline void
 172waveartist_iack(wavnc_info *devc)
 173{
 174        unsigned int ctlr_port = devc->hw.io_base + CTLR;
 175        int old_ctlr;
 176
 177        old_ctlr = inb(ctlr_port) & ~IRQ_ACK;
 178
 179        outb(old_ctlr | IRQ_ACK, ctlr_port);
 180        outb(old_ctlr, ctlr_port);
 181}
 182
 183static inline int
 184waveartist_sleep(int timeout_ms)
 185{
 186        unsigned int timeout = timeout_ms * 10 * HZ / 100;
 187
 188        do {
 189                set_current_state(TASK_INTERRUPTIBLE);
 190                timeout = schedule_timeout(timeout);
 191        } while (timeout);
 192
 193        return 0;
 194}
 195
 196static int
 197waveartist_reset(wavnc_info *devc)
 198{
 199        struct address_info *hw = &devc->hw;
 200        unsigned int timeout, res = -1;
 201
 202        waveartist_set_ctlr(hw, -1, RESET);
 203        waveartist_sleep(2);
 204        waveartist_set_ctlr(hw, RESET, 0);
 205
 206        timeout = 500;
 207        do {
 208                mdelay(2);
 209
 210                if (inb(hw->io_base + STATR) & CMD_RF) {
 211                        res = inw(hw->io_base + CMDR);
 212                        if (res == 0x55aa)
 213                                break;
 214                }
 215        } while (--timeout);
 216
 217        if (timeout == 0) {
 218                printk(KERN_WARNING "WaveArtist: reset timeout ");
 219                if (res != (unsigned int)-1)
 220                        printk("(res=%04X)", res);
 221                printk("\n");
 222                return 1;
 223        }
 224        return 0;
 225}
 226
 227/* Helper function to send and receive words
 228 * from WaveArtist.  It handles all the handshaking
 229 * and can send or receive multiple words.
 230 */
 231static int
 232waveartist_cmd(wavnc_info *devc,
 233                int nr_cmd, unsigned int *cmd,
 234                int nr_resp, unsigned int *resp)
 235{
 236        unsigned int io_base = devc->hw.io_base;
 237        unsigned int timed_out = 0;
 238        unsigned int i;
 239
 240        if (debug_flg & DEBUG_CMD) {
 241                printk("waveartist_cmd: cmd=");
 242
 243                for (i = 0; i < nr_cmd; i++)
 244                        printk("%04X ", cmd[i]);
 245
 246                printk("\n");
 247        }
 248
 249        if (inb(io_base + STATR) & CMD_RF) {
 250                int old_data;
 251
 252                /* flush the port
 253                 */
 254
 255                old_data = inw(io_base + CMDR);
 256
 257                if (debug_flg & DEBUG_CMD)
 258                        printk("flushed %04X...", old_data);
 259
 260                udelay(10);
 261        }
 262
 263        for (i = 0; !timed_out && i < nr_cmd; i++) {
 264                int count;
 265
 266                for (count = 5000; count; count--)
 267                        if (inb(io_base + STATR) & CMD_WE)
 268                                break;
 269
 270                if (!count)
 271                        timed_out = 1;
 272                else
 273                        outw(cmd[i], io_base + CMDR);
 274        }
 275
 276        for (i = 0; !timed_out && i < nr_resp; i++) {
 277                int count;
 278
 279                for (count = 5000; count; count--)
 280                        if (inb(io_base + STATR) & CMD_RF)
 281                                break;
 282
 283                if (!count)
 284                        timed_out = 1;
 285                else
 286                        resp[i] = inw(io_base + CMDR);
 287        }
 288
 289        if (debug_flg & DEBUG_CMD) {
 290                if (!timed_out) {
 291                        printk("waveartist_cmd: resp=");
 292
 293                        for (i = 0; i < nr_resp; i++)
 294                                printk("%04X ", resp[i]);
 295
 296                        printk("\n");
 297                } else
 298                        printk("waveartist_cmd: timed out\n");
 299        }
 300
 301        return timed_out ? 1 : 0;
 302}
 303
 304/*
 305 * Send one command word
 306 */
 307static inline int
 308waveartist_cmd1(wavnc_info *devc, unsigned int cmd)
 309{
 310        return waveartist_cmd(devc, 1, &cmd, 0, NULL);
 311}
 312
 313/*
 314 * Send one command, receive one word
 315 */
 316static inline unsigned int
 317waveartist_cmd1_r(wavnc_info *devc, unsigned int cmd)
 318{
 319        unsigned int ret;
 320
 321        waveartist_cmd(devc, 1, &cmd, 1, &ret);
 322
 323        return ret;
 324}
 325
 326/*
 327 * Send a double command, receive one
 328 * word (and throw it away)
 329 */
 330static inline int
 331waveartist_cmd2(wavnc_info *devc, unsigned int cmd, unsigned int arg)
 332{
 333        unsigned int vals[2];
 334
 335        vals[0] = cmd;
 336        vals[1] = arg;
 337
 338        return waveartist_cmd(devc, 2, vals, 1, vals);
 339}
 340
 341/*
 342 * Send a triple command
 343 */
 344static inline int
 345waveartist_cmd3(wavnc_info *devc, unsigned int cmd,
 346                unsigned int arg1, unsigned int arg2)
 347{
 348        unsigned int vals[3];
 349
 350        vals[0] = cmd;
 351        vals[1] = arg1;
 352        vals[2] = arg2;
 353
 354        return waveartist_cmd(devc, 3, vals, 0, NULL);
 355}
 356
 357static int
 358waveartist_getrev(wavnc_info *devc, char *rev)
 359{
 360        unsigned int temp[2];
 361        unsigned int cmd = WACMD_GETREV;
 362
 363        waveartist_cmd(devc, 1, &cmd, 2, temp);
 364
 365        rev[0] = temp[0] >> 8;
 366        rev[1] = temp[0] & 255;
 367        rev[2] = '\0';
 368
 369        return temp[0];
 370}
 371
 372static void waveartist_halt_output(int dev);
 373static void waveartist_halt_input(int dev);
 374static void waveartist_halt(int dev);
 375static void waveartist_trigger(int dev, int state);
 376
 377static int
 378waveartist_open(int dev, int mode)
 379{
 380        wavnc_info      *devc;
 381        wavnc_port_info *portc;
 382        unsigned long   flags;
 383
 384        if (dev < 0 || dev >= num_audiodevs)
 385                return -ENXIO;
 386
 387        devc  = (wavnc_info *) audio_devs[dev]->devc;
 388        portc = (wavnc_port_info *) audio_devs[dev]->portc;
 389
 390        spin_lock_irqsave(&waveartist_lock, flags);
 391        if (portc->open_mode || (devc->open_mode & mode)) {
 392                spin_unlock_irqrestore(&waveartist_lock, flags);
 393                return -EBUSY;
 394        }
 395
 396        devc->audio_mode  = 0;
 397        devc->open_mode  |= mode;
 398        portc->open_mode  = mode;
 399        waveartist_trigger(dev, 0);
 400
 401        if (mode & OPEN_READ)
 402                devc->record_dev = dev;
 403        if (mode & OPEN_WRITE)
 404                devc->playback_dev = dev;
 405        spin_unlock_irqrestore(&waveartist_lock, flags);
 406
 407        return 0;
 408}
 409
 410static void
 411waveartist_close(int dev)
 412{
 413        wavnc_info      *devc = (wavnc_info *) audio_devs[dev]->devc;
 414        wavnc_port_info *portc = (wavnc_port_info *) audio_devs[dev]->portc;
 415        unsigned long   flags;
 416
 417        spin_lock_irqsave(&waveartist_lock, flags);
 418
 419        waveartist_halt(dev);
 420
 421        devc->audio_mode = 0;
 422        devc->open_mode &= ~portc->open_mode;
 423        portc->open_mode = 0;
 424
 425        spin_unlock_irqrestore(&waveartist_lock, flags);
 426}
 427
 428static void
 429waveartist_output_block(int dev, unsigned long buf, int __count, int intrflag)
 430{
 431        wavnc_port_info *portc = (wavnc_port_info *) audio_devs[dev]->portc;
 432        wavnc_info      *devc = (wavnc_info *) audio_devs[dev]->devc;
 433        unsigned long   flags;
 434        unsigned int    count = __count; 
 435
 436        if (debug_flg & DEBUG_OUT)
 437                printk("waveartist: output block, buf=0x%lx, count=0x%x...\n",
 438                        buf, count);
 439        /*
 440         * 16 bit data
 441         */
 442        if (portc->audio_format & (AFMT_S16_LE | AFMT_S16_BE))
 443                count >>= 1;
 444
 445        if (portc->channels > 1)
 446                count >>= 1;
 447
 448        count -= 1;
 449
 450        if (devc->audio_mode & PCM_ENABLE_OUTPUT &&
 451            audio_devs[dev]->flags & DMA_AUTOMODE &&
 452            intrflag &&
 453            count == devc->xfer_count) {
 454                devc->audio_mode |= PCM_ENABLE_OUTPUT;
 455                return; /*
 456                         * Auto DMA mode on. No need to react
 457                         */
 458        }
 459
 460        spin_lock_irqsave(&waveartist_lock, flags);
 461
 462        /*
 463         * set sample count
 464         */
 465        waveartist_cmd2(devc, WACMD_OUTPUTSIZE, count);
 466
 467        devc->xfer_count = count;
 468        devc->audio_mode |= PCM_ENABLE_OUTPUT;
 469
 470        spin_unlock_irqrestore(&waveartist_lock, flags);
 471}
 472
 473static void
 474waveartist_start_input(int dev, unsigned long buf, int __count, int intrflag)
 475{
 476        wavnc_port_info *portc = (wavnc_port_info *) audio_devs[dev]->portc;
 477        wavnc_info      *devc = (wavnc_info *) audio_devs[dev]->devc;
 478        unsigned long   flags;
 479        unsigned int    count = __count;
 480
 481        if (debug_flg & DEBUG_IN)
 482                printk("waveartist: start input, buf=0x%lx, count=0x%x...\n",
 483                        buf, count);
 484
 485        if (portc->audio_format & (AFMT_S16_LE | AFMT_S16_BE))  /* 16 bit data */
 486                count >>= 1;
 487
 488        if (portc->channels > 1)
 489                count >>= 1;
 490
 491        count -= 1;
 492
 493        if (devc->audio_mode & PCM_ENABLE_INPUT &&
 494            audio_devs[dev]->flags & DMA_AUTOMODE &&
 495            intrflag &&
 496            count == devc->xfer_count) {
 497                devc->audio_mode |= PCM_ENABLE_INPUT;
 498                return; /*
 499                         * Auto DMA mode on. No need to react
 500                         */
 501        }
 502
 503        spin_lock_irqsave(&waveartist_lock, flags);
 504
 505        /*
 506         * set sample count
 507         */
 508        waveartist_cmd2(devc, WACMD_INPUTSIZE, count);
 509
 510        devc->xfer_count = count;
 511        devc->audio_mode |= PCM_ENABLE_INPUT;
 512
 513        spin_unlock_irqrestore(&waveartist_lock, flags);
 514}
 515
 516static int
 517waveartist_ioctl(int dev, unsigned int cmd, void __user * arg)
 518{
 519        return -EINVAL;
 520}
 521
 522static unsigned int
 523waveartist_get_speed(wavnc_port_info *portc)
 524{
 525        unsigned int speed;
 526
 527        /*
 528         * program the speed, channels, bits
 529         */
 530        if (portc->speed == 8000)
 531                speed = 0x2E71;
 532        else if (portc->speed == 11025)
 533                speed = 0x4000;
 534        else if (portc->speed == 22050)
 535                speed = 0x8000;
 536        else if (portc->speed == 44100)
 537                speed = 0x0;
 538        else {
 539                /*
 540                 * non-standard - just calculate
 541                 */
 542                speed = portc->speed << 16;
 543
 544                speed = (speed / 44100) & 65535;
 545        }
 546
 547        return speed;
 548}
 549
 550static unsigned int
 551waveartist_get_bits(wavnc_port_info *portc)
 552{
 553        unsigned int bits;
 554
 555        if (portc->audio_format == AFMT_S16_LE)
 556                bits = 1;
 557        else if (portc->audio_format == AFMT_S8)
 558                bits = 0;
 559        else
 560                bits = 2;       //default AFMT_U8
 561
 562        return bits;
 563}
 564
 565static int
 566waveartist_prepare_for_input(int dev, int bsize, int bcount)
 567{
 568        unsigned long   flags;
 569        wavnc_info      *devc = (wavnc_info *) audio_devs[dev]->devc;
 570        wavnc_port_info *portc = (wavnc_port_info *) audio_devs[dev]->portc;
 571        unsigned int    speed, bits;
 572
 573        if (devc->audio_mode)
 574                return 0;
 575
 576        speed = waveartist_get_speed(portc);
 577        bits  = waveartist_get_bits(portc);
 578
 579        spin_lock_irqsave(&waveartist_lock, flags);
 580
 581        if (waveartist_cmd2(devc, WACMD_INPUTFORMAT, bits))
 582                printk(KERN_WARNING "waveartist: error setting the "
 583                       "record format to %d\n", portc->audio_format);
 584
 585        if (waveartist_cmd2(devc, WACMD_INPUTCHANNELS, portc->channels))
 586                printk(KERN_WARNING "waveartist: error setting record "
 587                       "to %d channels\n", portc->channels);
 588
 589        /*
 590         * write cmd SetSampleSpeedTimeConstant
 591         */
 592        if (waveartist_cmd2(devc, WACMD_INPUTSPEED, speed))
 593                printk(KERN_WARNING "waveartist: error setting the record "
 594                       "speed to %dHz.\n", portc->speed);
 595
 596        if (waveartist_cmd2(devc, WACMD_INPUTDMA, 1))
 597                printk(KERN_WARNING "waveartist: error setting the record "
 598                       "data path to 0x%X\n", 1);
 599
 600        if (waveartist_cmd2(devc, WACMD_INPUTFORMAT, bits))
 601                printk(KERN_WARNING "waveartist: error setting the record "
 602                       "format to %d\n", portc->audio_format);
 603
 604        devc->xfer_count = 0;
 605        spin_unlock_irqrestore(&waveartist_lock, flags);
 606        waveartist_halt_input(dev);
 607
 608        if (debug_flg & DEBUG_INTR) {
 609                printk("WA CTLR reg: 0x%02X.\n",
 610                       inb(devc->hw.io_base + CTLR));
 611                printk("WA STAT reg: 0x%02X.\n",
 612                       inb(devc->hw.io_base + STATR));
 613                printk("WA IRQS reg: 0x%02X.\n",
 614                       inb(devc->hw.io_base + IRQSTAT));
 615        }
 616
 617        return 0;
 618}
 619
 620static int
 621waveartist_prepare_for_output(int dev, int bsize, int bcount)
 622{
 623        unsigned long   flags;
 624        wavnc_info      *devc = (wavnc_info *) audio_devs[dev]->devc;
 625        wavnc_port_info *portc = (wavnc_port_info *) audio_devs[dev]->portc;
 626        unsigned int    speed, bits;
 627
 628        /*
 629         * program the speed, channels, bits
 630         */
 631        speed = waveartist_get_speed(portc);
 632        bits  = waveartist_get_bits(portc);
 633
 634        spin_lock_irqsave(&waveartist_lock, flags);
 635
 636        if (waveartist_cmd2(devc, WACMD_OUTPUTSPEED, speed) &&
 637            waveartist_cmd2(devc, WACMD_OUTPUTSPEED, speed))
 638                printk(KERN_WARNING "waveartist: error setting the playback "
 639                       "speed to %dHz.\n", portc->speed);
 640
 641        if (waveartist_cmd2(devc, WACMD_OUTPUTCHANNELS, portc->channels))
 642                printk(KERN_WARNING "waveartist: error setting the playback "
 643                       "to %d channels\n", portc->channels);
 644
 645        if (waveartist_cmd2(devc, WACMD_OUTPUTDMA, 0))
 646                printk(KERN_WARNING "waveartist: error setting the playback "
 647                       "data path to 0x%X\n", 0);
 648
 649        if (waveartist_cmd2(devc, WACMD_OUTPUTFORMAT, bits))
 650                printk(KERN_WARNING "waveartist: error setting the playback "
 651                       "format to %d\n", portc->audio_format);
 652
 653        devc->xfer_count = 0;
 654        spin_unlock_irqrestore(&waveartist_lock, flags);
 655        waveartist_halt_output(dev);
 656
 657        if (debug_flg & DEBUG_INTR) {
 658                printk("WA CTLR reg: 0x%02X.\n",inb(devc->hw.io_base + CTLR));
 659                printk("WA STAT reg: 0x%02X.\n",inb(devc->hw.io_base + STATR));
 660                printk("WA IRQS reg: 0x%02X.\n",inb(devc->hw.io_base + IRQSTAT));
 661        }
 662
 663        return 0;
 664}
 665
 666static void
 667waveartist_halt(int dev)
 668{
 669        wavnc_port_info *portc = (wavnc_port_info *) audio_devs[dev]->portc;
 670        wavnc_info      *devc;
 671
 672        if (portc->open_mode & OPEN_WRITE)
 673                waveartist_halt_output(dev);
 674
 675        if (portc->open_mode & OPEN_READ)
 676                waveartist_halt_input(dev);
 677
 678        devc = (wavnc_info *) audio_devs[dev]->devc;
 679        devc->audio_mode = 0;
 680}
 681
 682static void
 683waveartist_halt_input(int dev)
 684{
 685        wavnc_info      *devc = (wavnc_info *) audio_devs[dev]->devc;
 686        unsigned long   flags;
 687
 688        spin_lock_irqsave(&waveartist_lock, flags);
 689
 690        /*
 691         * Stop capture
 692         */
 693        waveartist_cmd1(devc, WACMD_INPUTSTOP);
 694
 695        devc->audio_mode &= ~PCM_ENABLE_INPUT;
 696
 697        /*
 698         * Clear interrupt by toggling
 699         * the IRQ_ACK bit in CTRL
 700         */
 701        if (inb(devc->hw.io_base + STATR) & IRQ_REQ)
 702                waveartist_iack(devc);
 703
 704//      devc->audio_mode &= ~PCM_ENABLE_INPUT;
 705
 706        spin_unlock_irqrestore(&waveartist_lock, flags);
 707}
 708
 709static void
 710waveartist_halt_output(int dev)
 711{
 712        wavnc_info      *devc = (wavnc_info *) audio_devs[dev]->devc;
 713        unsigned long   flags;
 714
 715        spin_lock_irqsave(&waveartist_lock, flags);
 716
 717        waveartist_cmd1(devc, WACMD_OUTPUTSTOP);
 718
 719        devc->audio_mode &= ~PCM_ENABLE_OUTPUT;
 720
 721        /*
 722         * Clear interrupt by toggling
 723         * the IRQ_ACK bit in CTRL
 724         */
 725        if (inb(devc->hw.io_base + STATR) & IRQ_REQ)
 726                waveartist_iack(devc);
 727
 728//      devc->audio_mode &= ~PCM_ENABLE_OUTPUT;
 729
 730        spin_unlock_irqrestore(&waveartist_lock, flags);
 731}
 732
 733static void
 734waveartist_trigger(int dev, int state)
 735{
 736        wavnc_info      *devc = (wavnc_info *) audio_devs[dev]->devc;
 737        wavnc_port_info *portc = (wavnc_port_info *) audio_devs[dev]->portc;
 738        unsigned long   flags;
 739
 740        if (debug_flg & DEBUG_TRIGGER) {
 741                printk("wavnc: audio trigger ");
 742                if (state & PCM_ENABLE_INPUT)
 743                        printk("in ");
 744                if (state & PCM_ENABLE_OUTPUT)
 745                        printk("out");
 746                printk("\n");
 747        }
 748
 749        spin_lock_irqsave(&waveartist_lock, flags);
 750
 751        state &= devc->audio_mode;
 752
 753        if (portc->open_mode & OPEN_READ &&
 754            state & PCM_ENABLE_INPUT)
 755                /*
 756                 * enable ADC Data Transfer to PC
 757                 */
 758                waveartist_cmd1(devc, WACMD_INPUTSTART);
 759
 760        if (portc->open_mode & OPEN_WRITE &&
 761            state & PCM_ENABLE_OUTPUT)
 762                /*
 763                 * enable DAC data transfer from PC
 764                 */
 765                waveartist_cmd1(devc, WACMD_OUTPUTSTART);
 766
 767        spin_unlock_irqrestore(&waveartist_lock, flags);
 768}
 769
 770static int
 771waveartist_set_speed(int dev, int arg)
 772{
 773        wavnc_port_info *portc = (wavnc_port_info *) audio_devs[dev]->portc;
 774
 775        if (arg <= 0)
 776                return portc->speed;
 777
 778        if (arg < 5000)
 779                arg = 5000;
 780        if (arg > 44100)
 781                arg = 44100;
 782
 783        portc->speed = arg;
 784        return portc->speed;
 785
 786}
 787
 788static short
 789waveartist_set_channels(int dev, short arg)
 790{
 791        wavnc_port_info *portc = (wavnc_port_info *) audio_devs[dev]->portc;
 792
 793        if (arg != 1 && arg != 2)
 794                return portc->channels;
 795
 796        portc->channels = arg;
 797        return arg;
 798}
 799
 800static unsigned int
 801waveartist_set_bits(int dev, unsigned int arg)
 802{
 803        wavnc_port_info *portc = (wavnc_port_info *) audio_devs[dev]->portc;
 804
 805        if (arg == 0)
 806                return portc->audio_format;
 807
 808        if ((arg != AFMT_U8) && (arg != AFMT_S16_LE) && (arg != AFMT_S8))
 809                arg = AFMT_U8;
 810
 811        portc->audio_format = arg;
 812
 813        return arg;
 814}
 815
 816static struct audio_driver waveartist_audio_driver = {
 817        .owner                  = THIS_MODULE,
 818        .open                   = waveartist_open,
 819        .close                  = waveartist_close,
 820        .output_block           = waveartist_output_block,
 821        .start_input            = waveartist_start_input,
 822        .ioctl                  = waveartist_ioctl,
 823        .prepare_for_input      = waveartist_prepare_for_input,
 824        .prepare_for_output     = waveartist_prepare_for_output,
 825        .halt_io                = waveartist_halt,
 826        .halt_input             = waveartist_halt_input,
 827        .halt_output            = waveartist_halt_output,
 828        .trigger                = waveartist_trigger,
 829        .set_speed              = waveartist_set_speed,
 830        .set_bits               = waveartist_set_bits,
 831        .set_channels           = waveartist_set_channels
 832};
 833
 834
 835static irqreturn_t
 836waveartist_intr(int irq, void *dev_id)
 837{
 838        wavnc_info *devc = dev_id;
 839        int        irqstatus, status;
 840
 841        spin_lock(&waveartist_lock);
 842        irqstatus = inb(devc->hw.io_base + IRQSTAT);
 843        status    = inb(devc->hw.io_base + STATR);
 844
 845        if (debug_flg & DEBUG_INTR)
 846                printk("waveartist_intr: stat=%02x, irqstat=%02x\n",
 847                       status, irqstatus);
 848
 849        if (status & IRQ_REQ)   /* Clear interrupt */
 850                waveartist_iack(devc);
 851        else
 852                printk(KERN_WARNING "waveartist: unexpected interrupt\n");
 853
 854        if (irqstatus & 0x01) {
 855                int temp = 1;
 856
 857                /* PCM buffer done
 858                 */
 859                if ((status & DMA0) && (devc->audio_mode & PCM_ENABLE_OUTPUT)) {
 860                        DMAbuf_outputintr(devc->playback_dev, 1);
 861                        temp = 0;
 862                }
 863                if ((status & DMA1) && (devc->audio_mode & PCM_ENABLE_INPUT)) {
 864                        DMAbuf_inputintr(devc->record_dev);
 865                        temp = 0;
 866                }
 867                if (temp)       //default:
 868                        printk(KERN_WARNING "waveartist: Unknown interrupt\n");
 869        }
 870        if (irqstatus & 0x2)
 871                // We do not use SB mode natively...
 872                printk(KERN_WARNING "waveartist: Unexpected SB interrupt...\n");
 873        spin_unlock(&waveartist_lock);
 874        return IRQ_HANDLED;
 875}
 876
 877/* -------------------------------------------------------------------------
 878 * Mixer stuff
 879 */
 880struct mix_ent {
 881        unsigned char   reg_l;
 882        unsigned char   reg_r;
 883        unsigned char   shift;
 884        unsigned char   max;
 885};
 886
 887static const struct mix_ent mix_devs[SOUND_MIXER_NRDEVICES] = {
 888        { 2, 6, 1,  7 }, /* SOUND_MIXER_VOLUME   */
 889        { 0, 0, 0,  0 }, /* SOUND_MIXER_BASS     */
 890        { 0, 0, 0,  0 }, /* SOUND_MIXER_TREBLE   */
 891        { 0, 0, 0,  0 }, /* SOUND_MIXER_SYNTH    */
 892        { 0, 0, 0,  0 }, /* SOUND_MIXER_PCM      */
 893        { 0, 0, 0,  0 }, /* SOUND_MIXER_SPEAKER  */
 894        { 0, 4, 6, 31 }, /* SOUND_MIXER_LINE     */
 895        { 2, 6, 4,  3 }, /* SOUND_MIXER_MIC      */
 896        { 0, 0, 0,  0 }, /* SOUND_MIXER_CD       */
 897        { 0, 0, 0,  0 }, /* SOUND_MIXER_IMIX     */
 898        { 0, 0, 0,  0 }, /* SOUND_MIXER_ALTPCM   */
 899#if 0
 900        { 3, 7, 0, 10 }, /* SOUND_MIXER_RECLEV   */
 901        { 0, 0, 0,  0 }, /* SOUND_MIXER_IGAIN    */
 902#else
 903        { 0, 0, 0,  0 }, /* SOUND_MIXER_RECLEV   */
 904        { 3, 7, 0,  7 }, /* SOUND_MIXER_IGAIN    */
 905#endif
 906        { 0, 0, 0,  0 }, /* SOUND_MIXER_OGAIN    */
 907        { 0, 4, 1, 31 }, /* SOUND_MIXER_LINE1    */
 908        { 1, 5, 6, 31 }, /* SOUND_MIXER_LINE2    */
 909        { 0, 0, 0,  0 }, /* SOUND_MIXER_LINE3    */
 910        { 0, 0, 0,  0 }, /* SOUND_MIXER_DIGITAL1 */
 911        { 0, 0, 0,  0 }, /* SOUND_MIXER_DIGITAL2 */
 912        { 0, 0, 0,  0 }, /* SOUND_MIXER_DIGITAL3 */
 913        { 0, 0, 0,  0 }, /* SOUND_MIXER_PHONEIN  */
 914        { 0, 0, 0,  0 }, /* SOUND_MIXER_PHONEOUT */
 915        { 0, 0, 0,  0 }, /* SOUND_MIXER_VIDEO    */
 916        { 0, 0, 0,  0 }, /* SOUND_MIXER_RADIO    */
 917        { 0, 0, 0,  0 }  /* SOUND_MIXER_MONITOR  */
 918};
 919
 920static void
 921waveartist_mixer_update(wavnc_info *devc, int whichDev)
 922{
 923        unsigned int lev_left, lev_right;
 924
 925        lev_left  = devc->levels[whichDev] & 0xff;
 926        lev_right = devc->levels[whichDev] >> 8;
 927
 928        if (lev_left > 100)
 929                lev_left = 100;
 930        if (lev_right > 100)
 931                lev_right = 100;
 932
 933#define SCALE(lev,max)  ((lev) * (max) / 100)
 934
 935        if (machine_is_netwinder() && whichDev == SOUND_MIXER_PHONEOUT)
 936                whichDev = SOUND_MIXER_VOLUME;
 937
 938        if (mix_devs[whichDev].reg_l || mix_devs[whichDev].reg_r) {
 939                const struct mix_ent *mix = mix_devs + whichDev;
 940                unsigned int mask, left, right;
 941
 942                mask = mix->max << mix->shift;
 943                lev_left  = SCALE(lev_left,  mix->max) << mix->shift;
 944                lev_right = SCALE(lev_right, mix->max) << mix->shift;
 945
 946                /* read left setting */
 947                left  = waveartist_cmd1_r(devc, WACMD_GET_LEVEL |
 948                                               mix->reg_l << 8);
 949
 950                /* read right setting */
 951                right = waveartist_cmd1_r(devc, WACMD_GET_LEVEL |
 952                                                mix->reg_r << 8);
 953
 954                left  = (left  & ~mask) | (lev_left  & mask);
 955                right = (right & ~mask) | (lev_right & mask);
 956
 957                /* write left,right back */
 958                waveartist_cmd3(devc, WACMD_SET_MIXER, left, right);
 959        } else {
 960                switch(whichDev) {
 961                case SOUND_MIXER_PCM:
 962                        waveartist_cmd3(devc, WACMD_SET_LEVEL,
 963                                        SCALE(lev_left,  32767),
 964                                        SCALE(lev_right, 32767));
 965                        break;
 966
 967                case SOUND_MIXER_SYNTH:
 968                        waveartist_cmd3(devc, 0x0100 | WACMD_SET_LEVEL,
 969                                        SCALE(lev_left,  32767),
 970                                        SCALE(lev_right, 32767));
 971                        break;
 972                }
 973        }
 974}
 975
 976/*
 977 * Set the ADC MUX to the specified values.  We do NOT do any
 978 * checking of the values passed, since we assume that the
 979 * relevant *_select_input function has done that for us.
 980 */
 981static void
 982waveartist_set_adc_mux(wavnc_info *devc, char left_dev, char right_dev)
 983{
 984        unsigned int reg_08, reg_09;
 985
 986        reg_08 = waveartist_cmd1_r(devc, WACMD_GET_LEVEL | 0x0800);
 987        reg_09 = waveartist_cmd1_r(devc, WACMD_GET_LEVEL | 0x0900);
 988
 989        reg_08 = (reg_08 & ~0x3f) | right_dev << 3 | left_dev;
 990
 991        waveartist_cmd3(devc, WACMD_SET_MIXER, reg_08, reg_09);
 992}
 993
 994/*
 995 * Decode a recording mask into a mixer selection as follows:
 996 *
 997 *     OSS Source       WA Source       Actual source
 998 *  SOUND_MASK_IMIX     Mixer           Mixer output (same as AD1848)
 999 *  SOUND_MASK_LINE     Line            Line in
1000 *  SOUND_MASK_LINE1    Aux 1           Aux 1 in
1001 *  SOUND_MASK_LINE2    Aux 2           Aux 2 in
1002 *  SOUND_MASK_MIC      Mic             Microphone
1003 */
1004static unsigned int
1005waveartist_select_input(wavnc_info *devc, unsigned int recmask,
1006                        unsigned char *dev_l, unsigned char *dev_r)
1007{
1008        unsigned int recdev = ADC_MUX_NONE;
1009
1010        if (recmask & SOUND_MASK_IMIX) {
1011                recmask = SOUND_MASK_IMIX;
1012                recdev = ADC_MUX_MIXER;
1013        } else if (recmask & SOUND_MASK_LINE2) {
1014                recmask = SOUND_MASK_LINE2;
1015                recdev = ADC_MUX_AUX2;
1016        } else if (recmask & SOUND_MASK_LINE1) {
1017                recmask = SOUND_MASK_LINE1;
1018                recdev = ADC_MUX_AUX1;
1019        } else if (recmask & SOUND_MASK_LINE) {
1020                recmask = SOUND_MASK_LINE;
1021                recdev = ADC_MUX_LINE;
1022        } else if (recmask & SOUND_MASK_MIC) {
1023                recmask = SOUND_MASK_MIC;
1024                recdev = ADC_MUX_MIC;
1025        }
1026
1027        *dev_l = *dev_r = recdev;
1028
1029        return recmask;
1030}
1031
1032static int
1033waveartist_decode_mixer(wavnc_info *devc, int dev, unsigned char lev_l,
1034                        unsigned char lev_r)
1035{
1036        switch (dev) {
1037        case SOUND_MIXER_VOLUME:
1038        case SOUND_MIXER_SYNTH:
1039        case SOUND_MIXER_PCM:
1040        case SOUND_MIXER_LINE:
1041        case SOUND_MIXER_MIC:
1042        case SOUND_MIXER_IGAIN:
1043        case SOUND_MIXER_LINE1:
1044        case SOUND_MIXER_LINE2:
1045                devc->levels[dev] = lev_l | lev_r << 8;
1046                break;
1047
1048        case SOUND_MIXER_IMIX:
1049                break;
1050
1051        default:
1052                dev = -EINVAL;
1053                break;
1054        }
1055
1056        return dev;
1057}
1058
1059static int waveartist_get_mixer(wavnc_info *devc, int dev)
1060{
1061        return devc->levels[dev];
1062}
1063
1064static const struct waveartist_mixer_info waveartist_mixer = {
1065        .supported_devs = SUPPORTED_MIXER_DEVICES | SOUND_MASK_IGAIN,
1066        .recording_devs = SOUND_MASK_LINE  | SOUND_MASK_MIC   |
1067                        SOUND_MASK_LINE1 | SOUND_MASK_LINE2 |
1068                        SOUND_MASK_IMIX,
1069        .stereo_devs    = (SUPPORTED_MIXER_DEVICES | SOUND_MASK_IGAIN) & ~
1070                        (SOUND_MASK_SPEAKER | SOUND_MASK_IMIX),
1071        .select_input   = waveartist_select_input,
1072        .decode_mixer   = waveartist_decode_mixer,
1073        .get_mixer      = waveartist_get_mixer,
1074};
1075
1076static void
1077waveartist_set_recmask(wavnc_info *devc, unsigned int recmask)
1078{
1079        unsigned char dev_l, dev_r;
1080
1081        recmask &= devc->mix->recording_devs;
1082
1083        /*
1084         * If more than one recording device selected,
1085         * disable the device that is currently in use.
1086         */
1087        if (hweight32(recmask) > 1)
1088                recmask &= ~devc->recmask;
1089
1090        /*
1091         * Translate the recording device mask into
1092         * the ADC multiplexer settings.
1093         */
1094        devc->recmask = devc->mix->select_input(devc, recmask,
1095                                                &dev_l, &dev_r);
1096
1097        waveartist_set_adc_mux(devc, dev_l, dev_r);
1098}
1099
1100static int
1101waveartist_set_mixer(wavnc_info *devc, int dev, unsigned int level)
1102{
1103        unsigned int lev_left  = level & 0x00ff;
1104        unsigned int lev_right = (level & 0xff00) >> 8;
1105
1106        if (lev_left > 100)
1107                lev_left = 100;
1108        if (lev_right > 100)
1109                lev_right = 100;
1110
1111        /*
1112         * Mono devices have their right volume forced to their
1113         * left volume.  (from ALSA driver OSS emulation).
1114         */
1115        if (!(devc->mix->stereo_devs & (1 << dev)))
1116                lev_right = lev_left;
1117
1118        dev = devc->mix->decode_mixer(devc, dev, lev_left, lev_right);
1119
1120        if (dev >= 0)
1121                waveartist_mixer_update(devc, dev);
1122
1123        return dev < 0 ? dev : 0;
1124}
1125
1126static int
1127waveartist_mixer_ioctl(int dev, unsigned int cmd, void __user * arg)
1128{
1129        wavnc_info *devc = (wavnc_info *)audio_devs[dev]->devc;
1130        int ret = 0, val, nr;
1131
1132        /*
1133         * All SOUND_MIXER_* ioctls use type 'M'
1134         */
1135        if (((cmd >> 8) & 255) != 'M')
1136                return -ENOIOCTLCMD;
1137
1138#ifdef CONFIG_ARCH_NETWINDER
1139        if (machine_is_netwinder()) {
1140                ret = vnc_private_ioctl(dev, cmd, arg);
1141                if (ret != -ENOIOCTLCMD)
1142                        return ret;
1143                else
1144                        ret = 0;
1145        }
1146#endif
1147
1148        nr = cmd & 0xff;
1149
1150        if (_SIOC_DIR(cmd) & _SIOC_WRITE) {
1151                if (get_user(val, (int __user *)arg))
1152                        return -EFAULT;
1153
1154                switch (nr) {
1155                case SOUND_MIXER_RECSRC:
1156                        waveartist_set_recmask(devc, val);
1157                        break;
1158
1159                default:
1160                        ret = -EINVAL;
1161                        if (nr < SOUND_MIXER_NRDEVICES &&
1162                            devc->mix->supported_devs & (1 << nr))
1163                                ret = waveartist_set_mixer(devc, nr, val);
1164                }
1165        }
1166
1167        if (ret == 0 && _SIOC_DIR(cmd) & _SIOC_READ) {
1168                ret = -EINVAL;
1169
1170                switch (nr) {
1171                case SOUND_MIXER_RECSRC:
1172                        ret = devc->recmask;
1173                        break;
1174
1175                case SOUND_MIXER_DEVMASK:
1176                        ret = devc->mix->supported_devs;
1177                        break;
1178
1179                case SOUND_MIXER_STEREODEVS:
1180                        ret = devc->mix->stereo_devs;
1181                        break;
1182
1183                case SOUND_MIXER_RECMASK:
1184                        ret = devc->mix->recording_devs;
1185                        break;
1186
1187                case SOUND_MIXER_CAPS:
1188                        ret = SOUND_CAP_EXCL_INPUT;
1189                        break;
1190
1191                default:
1192                        if (nr < SOUND_MIXER_NRDEVICES)
1193                                ret = devc->mix->get_mixer(devc, nr);
1194                        break;
1195                }
1196
1197                if (ret >= 0)
1198                        ret = put_user(ret, (int __user *)arg) ? -EFAULT : 0;
1199        }
1200
1201        return ret;
1202}
1203
1204static struct mixer_operations waveartist_mixer_operations =
1205{
1206        .owner  = THIS_MODULE,
1207        .id     = "WaveArtist",
1208        .name   = "WaveArtist",
1209        .ioctl  = waveartist_mixer_ioctl
1210};
1211
1212static void
1213waveartist_mixer_reset(wavnc_info *devc)
1214{
1215        int i;
1216
1217        if (debug_flg & DEBUG_MIXER)
1218                printk("%s: mixer_reset\n", devc->hw.name);
1219
1220        /*
1221         * reset mixer cmd
1222         */
1223        waveartist_cmd1(devc, WACMD_RST_MIXER);
1224
1225        /*
1226         * set input for ADC to come from 'quiet'
1227         * turn on default modes
1228         */
1229        waveartist_cmd3(devc, WACMD_SET_MIXER, 0x9800, 0xa836);
1230
1231        /*
1232         * set mixer input select to none, RX filter gains 0 dB
1233         */
1234        waveartist_cmd3(devc, WACMD_SET_MIXER, 0x4c00, 0x8c00);
1235
1236        /*
1237         * set bit 0 reg 2 to 1 - unmute MonoOut
1238         */
1239        waveartist_cmd3(devc, WACMD_SET_MIXER, 0x2801, 0x6800);
1240
1241        /* set default input device = internal mic
1242         * current recording device = none
1243         */
1244        waveartist_set_recmask(devc, 0);
1245
1246        for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
1247                waveartist_mixer_update(devc, i);
1248}
1249
1250static int __init waveartist_init(wavnc_info *devc)
1251{
1252        wavnc_port_info *portc;
1253        char rev[3], dev_name[64];
1254        int my_dev;
1255
1256        if (waveartist_reset(devc))
1257                return -ENODEV;
1258
1259        sprintf(dev_name, "%s (%s", devc->hw.name, devc->chip_name);
1260
1261        if (waveartist_getrev(devc, rev)) {
1262                strcat(dev_name, " rev. ");
1263                strcat(dev_name, rev);
1264        }
1265        strcat(dev_name, ")");
1266
1267        conf_printf2(dev_name, devc->hw.io_base, devc->hw.irq,
1268                     devc->hw.dma, devc->hw.dma2);
1269
1270        portc = kzalloc(sizeof(wavnc_port_info), GFP_KERNEL);
1271        if (portc == NULL)
1272                goto nomem;
1273
1274        my_dev = sound_install_audiodrv(AUDIO_DRIVER_VERSION, dev_name,
1275                        &waveartist_audio_driver, sizeof(struct audio_driver),
1276                        devc->audio_flags, AFMT_U8 | AFMT_S16_LE | AFMT_S8,
1277                        devc, devc->hw.dma, devc->hw.dma2);
1278
1279        if (my_dev < 0)
1280                goto free;
1281
1282        audio_devs[my_dev]->portc = portc;
1283
1284        waveartist_mixer_reset(devc);
1285
1286        /*
1287         * clear any pending interrupt
1288         */
1289        waveartist_iack(devc);
1290
1291        if (request_irq(devc->hw.irq, waveartist_intr, 0, devc->hw.name, devc) < 0) {
1292                printk(KERN_ERR "%s: IRQ %d in use\n",
1293                        devc->hw.name, devc->hw.irq);
1294                goto uninstall;
1295        }
1296
1297        if (sound_alloc_dma(devc->hw.dma, devc->hw.name)) {
1298                printk(KERN_ERR "%s: Can't allocate DMA%d\n",
1299                        devc->hw.name, devc->hw.dma);
1300                goto uninstall_irq;
1301        }
1302
1303        if (devc->hw.dma != devc->hw.dma2 && devc->hw.dma2 != NO_DMA)
1304                if (sound_alloc_dma(devc->hw.dma2, devc->hw.name)) {
1305                        printk(KERN_ERR "%s: can't allocate DMA%d\n",
1306                                devc->hw.name, devc->hw.dma2);
1307                        goto uninstall_dma;
1308                }
1309
1310        waveartist_set_ctlr(&devc->hw, 0, DMA1_IE | DMA0_IE);
1311
1312        audio_devs[my_dev]->mixer_dev =
1313                sound_install_mixer(MIXER_DRIVER_VERSION,
1314                                dev_name,
1315                                &waveartist_mixer_operations,
1316                                sizeof(struct mixer_operations),
1317                                devc);
1318
1319        return my_dev;
1320
1321uninstall_dma:
1322        sound_free_dma(devc->hw.dma);
1323
1324uninstall_irq:
1325        free_irq(devc->hw.irq, devc);
1326
1327uninstall:
1328        sound_unload_audiodev(my_dev);
1329
1330free:
1331        kfree(portc);
1332
1333nomem:
1334        return -1;
1335}
1336
1337static int __init probe_waveartist(struct address_info *hw_config)
1338{
1339        wavnc_info *devc = &adev_info[nr_waveartist_devs];
1340
1341        if (nr_waveartist_devs >= MAX_AUDIO_DEV) {
1342                printk(KERN_WARNING "waveartist: too many audio devices\n");
1343                return 0;
1344        }
1345
1346        if (!request_region(hw_config->io_base, 15, hw_config->name))  {
1347                printk(KERN_WARNING "WaveArtist: I/O port conflict\n");
1348                return 0;
1349        }
1350
1351        if (hw_config->irq > 15 || hw_config->irq < 0) {
1352                release_region(hw_config->io_base, 15);
1353                printk(KERN_WARNING "WaveArtist: Bad IRQ %d\n",
1354                       hw_config->irq);
1355                return 0;
1356        }
1357
1358        if (hw_config->dma != 3) {
1359                release_region(hw_config->io_base, 15);
1360                printk(KERN_WARNING "WaveArtist: Bad DMA %d\n",
1361                       hw_config->dma);
1362                return 0;
1363        }
1364
1365        hw_config->name = "WaveArtist";
1366        devc->hw = *hw_config;
1367        devc->open_mode = 0;
1368        devc->chip_name = "RWA-010";
1369
1370        return 1;
1371}
1372
1373static void __init
1374attach_waveartist(struct address_info *hw, const struct waveartist_mixer_info *mix)
1375{
1376        wavnc_info *devc = &adev_info[nr_waveartist_devs];
1377
1378        /*
1379         * NOTE! If irq < 0, there is another driver which has allocated the
1380         *   IRQ so that this driver doesn't need to allocate/deallocate it.
1381         *   The actually used IRQ is ABS(irq).
1382         */
1383        devc->hw = *hw;
1384        devc->hw.irq = (hw->irq > 0) ? hw->irq : 0;
1385        devc->open_mode = 0;
1386        devc->playback_dev = 0;
1387        devc->record_dev = 0;
1388        devc->audio_flags = DMA_AUTOMODE;
1389        devc->levels = levels;
1390
1391        if (hw->dma != hw->dma2 && hw->dma2 != NO_DMA)
1392                devc->audio_flags |= DMA_DUPLEX;
1393
1394        devc->mix = mix;
1395        devc->dev_no = waveartist_init(devc);
1396
1397        if (devc->dev_no < 0)
1398                release_region(hw->io_base, 15);
1399        else {
1400#ifdef CONFIG_ARCH_NETWINDER
1401                if (machine_is_netwinder()) {
1402                        init_timer(&vnc_timer);
1403                        vnc_timer.function = vnc_slider_tick;
1404                        vnc_timer.expires  = jiffies;
1405                        vnc_timer.data     = nr_waveartist_devs;
1406                        add_timer(&vnc_timer);
1407
1408                        vnc_configure_mixer(devc, 0);
1409
1410                        devc->no_autoselect = 1;
1411                }
1412#endif
1413                nr_waveartist_devs += 1;
1414        }
1415}
1416
1417static void __exit unload_waveartist(struct address_info *hw)
1418{
1419        wavnc_info *devc = NULL;
1420        int i;
1421
1422        for (i = 0; i < nr_waveartist_devs; i++)
1423                if (hw->io_base == adev_info[i].hw.io_base) {
1424                        devc = adev_info + i;
1425                        break;
1426                }
1427
1428        if (devc != NULL) {
1429                int mixer;
1430
1431#ifdef CONFIG_ARCH_NETWINDER
1432                if (machine_is_netwinder())
1433                        del_timer(&vnc_timer);
1434#endif
1435
1436                release_region(devc->hw.io_base, 15);
1437
1438                waveartist_set_ctlr(&devc->hw, DMA1_IE|DMA0_IE, 0);
1439
1440                if (devc->hw.irq >= 0)
1441                        free_irq(devc->hw.irq, devc);
1442
1443                sound_free_dma(devc->hw.dma);
1444
1445                if (devc->hw.dma != devc->hw.dma2 &&
1446                    devc->hw.dma2 != NO_DMA)
1447                        sound_free_dma(devc->hw.dma2);
1448
1449                mixer = audio_devs[devc->dev_no]->mixer_dev;
1450
1451                if (mixer >= 0)
1452                        sound_unload_mixerdev(mixer);
1453
1454                if (devc->dev_no >= 0)
1455                        sound_unload_audiodev(devc->dev_no);
1456
1457                nr_waveartist_devs -= 1;
1458
1459                for (; i < nr_waveartist_devs; i++)
1460                        adev_info[i] = adev_info[i + 1];
1461        } else
1462                printk(KERN_WARNING "waveartist: can't find device "
1463                       "to unload\n");
1464}
1465
1466#ifdef CONFIG_ARCH_NETWINDER
1467
1468/*
1469 * Rebel.com Netwinder specifics...
1470 */
1471
1472#include <asm/hardware/dec21285.h>
1473 
1474#define VNC_TIMER_PERIOD (HZ/4) //check slider 4 times/sec
1475
1476#define MIXER_PRIVATE3_RESET    0x53570000
1477#define MIXER_PRIVATE3_READ     0x53570001
1478#define MIXER_PRIVATE3_WRITE    0x53570002
1479
1480#define VNC_MUTE_INTERNAL_SPKR  0x01    //the sw mute on/off control bit
1481#define VNC_MUTE_LINE_OUT       0x10
1482#define VNC_PHONE_DETECT        0x20
1483#define VNC_HANDSET_DETECT      0x40
1484#define VNC_DISABLE_AUTOSWITCH  0x80
1485
1486static inline void
1487vnc_mute_spkr(wavnc_info *devc)
1488{
1489        unsigned long flags;
1490
1491        spin_lock_irqsave(&nw_gpio_lock, flags);
1492        nw_cpld_modify(CPLD_UNMUTE, devc->spkr_mute_state ? 0 : CPLD_UNMUTE);
1493        spin_unlock_irqrestore(&nw_gpio_lock, flags);
1494}
1495
1496static void
1497vnc_mute_lout(wavnc_info *devc)
1498{
1499        unsigned int left, right;
1500
1501        left  = waveartist_cmd1_r(devc, WACMD_GET_LEVEL);
1502        right = waveartist_cmd1_r(devc, WACMD_GET_LEVEL | 0x400);
1503
1504        if (devc->line_mute_state) {
1505                left &= ~1;
1506                right &= ~1;
1507        } else {
1508                left |= 1;
1509                right |= 1;
1510        }
1511        waveartist_cmd3(devc, WACMD_SET_MIXER, left, right);
1512                
1513}
1514
1515static int
1516vnc_volume_slider(wavnc_info *devc)
1517{
1518        static signed int old_slider_volume;
1519        unsigned long flags;
1520        signed int volume = 255;
1521
1522        *CSR_TIMER1_LOAD = 0x00ffffff;
1523
1524        spin_lock_irqsave(&waveartist_lock, flags);
1525
1526        outb(0xFF, 0x201);
1527        *CSR_TIMER1_CNTL = TIMER_CNTL_ENABLE | TIMER_CNTL_DIV1;
1528
1529        while (volume && (inb(0x201) & 0x01))
1530                volume--;
1531
1532        *CSR_TIMER1_CNTL = 0;
1533
1534        spin_unlock_irqrestore(&waveartist_lock,flags);
1535        
1536        volume = 0x00ffffff - *CSR_TIMER1_VALUE;
1537
1538
1539#ifndef REVERSE
1540        volume = 150 - (volume >> 5);
1541#else
1542        volume = (volume >> 6) - 25;
1543#endif
1544
1545        if (volume < 0)
1546                volume = 0;
1547
1548        if (volume > 100)
1549                volume = 100;
1550
1551        /*
1552         * slider quite often reads +-8, so debounce this random noise
1553         */
1554        if (abs(volume - old_slider_volume) > 7) {
1555                old_slider_volume = volume;
1556
1557                if (debug_flg & DEBUG_MIXER)
1558                        printk(KERN_DEBUG "Slider volume: %d.\n", volume);
1559        }
1560
1561        return old_slider_volume;
1562}
1563
1564/*
1565 * Decode a recording mask into a mixer selection on the NetWinder
1566 * as follows:
1567 *
1568 *     OSS Source       WA Source       Actual source
1569 *  SOUND_MASK_IMIX     Mixer           Mixer output (same as AD1848)
1570 *  SOUND_MASK_LINE     Line            Line in
1571 *  SOUND_MASK_LINE1    Left Mic        Handset
1572 *  SOUND_MASK_PHONEIN  Left Aux        Telephone microphone
1573 *  SOUND_MASK_MIC      Right Mic       Builtin microphone
1574 */
1575static unsigned int
1576netwinder_select_input(wavnc_info *devc, unsigned int recmask,
1577                       unsigned char *dev_l, unsigned char *dev_r)
1578{
1579        unsigned int recdev_l = ADC_MUX_NONE, recdev_r = ADC_MUX_NONE;
1580
1581        if (recmask & SOUND_MASK_IMIX) {
1582                recmask = SOUND_MASK_IMIX;
1583                recdev_l = ADC_MUX_MIXER;
1584                recdev_r = ADC_MUX_MIXER;
1585        } else if (recmask & SOUND_MASK_LINE) {
1586                recmask = SOUND_MASK_LINE;
1587                recdev_l = ADC_MUX_LINE;
1588                recdev_r = ADC_MUX_LINE;
1589        } else if (recmask & SOUND_MASK_LINE1) {
1590                recmask = SOUND_MASK_LINE1;
1591                waveartist_cmd1(devc, WACMD_SET_MONO); /* left */
1592                recdev_l = ADC_MUX_MIC;
1593                recdev_r = ADC_MUX_NONE;
1594        } else if (recmask & SOUND_MASK_PHONEIN) {
1595                recmask = SOUND_MASK_PHONEIN;
1596                waveartist_cmd1(devc, WACMD_SET_MONO); /* left */
1597                recdev_l = ADC_MUX_AUX1;
1598                recdev_r = ADC_MUX_NONE;
1599        } else if (recmask & SOUND_MASK_MIC) {
1600                recmask = SOUND_MASK_MIC;
1601                waveartist_cmd1(devc, WACMD_SET_MONO | 0x100);  /* right */
1602                recdev_l = ADC_MUX_NONE;
1603                recdev_r = ADC_MUX_MIC;
1604        }
1605
1606        *dev_l = recdev_l;
1607        *dev_r = recdev_r;
1608
1609        return recmask;
1610}
1611
1612static int
1613netwinder_decode_mixer(wavnc_info *devc, int dev, unsigned char lev_l,
1614                       unsigned char lev_r)
1615{
1616        switch (dev) {
1617        case SOUND_MIXER_VOLUME:
1618        case SOUND_MIXER_SYNTH:
1619        case SOUND_MIXER_PCM:
1620        case SOUND_MIXER_LINE:
1621        case SOUND_MIXER_IGAIN:
1622                devc->levels[dev] = lev_l | lev_r << 8;
1623                break;
1624
1625        case SOUND_MIXER_MIC:           /* right mic only */
1626                devc->levels[SOUND_MIXER_MIC] &= 0xff;
1627                devc->levels[SOUND_MIXER_MIC] |= lev_l << 8;
1628                break;
1629
1630        case SOUND_MIXER_LINE1:         /* left mic only  */
1631                devc->levels[SOUND_MIXER_MIC] &= 0xff00;
1632                devc->levels[SOUND_MIXER_MIC] |= lev_l;
1633                dev = SOUND_MIXER_MIC;
1634                break;
1635
1636        case SOUND_MIXER_PHONEIN:       /* left aux only  */
1637                devc->levels[SOUND_MIXER_LINE1] = lev_l;
1638                dev = SOUND_MIXER_LINE1;
1639                break;
1640
1641        case SOUND_MIXER_IMIX:
1642        case SOUND_MIXER_PHONEOUT:
1643                break;
1644
1645        default:
1646                dev = -EINVAL;
1647                break;
1648        }
1649        return dev;
1650}
1651
1652static int netwinder_get_mixer(wavnc_info *devc, int dev)
1653{
1654        int levels;
1655
1656        switch (dev) {
1657        case SOUND_MIXER_VOLUME:
1658        case SOUND_MIXER_SYNTH:
1659        case SOUND_MIXER_PCM:
1660        case SOUND_MIXER_LINE:
1661        case SOUND_MIXER_IGAIN:
1662                levels = devc->levels[dev];
1663                break;
1664
1665        case SOUND_MIXER_MIC:           /* builtin mic: right mic only */
1666                levels = devc->levels[SOUND_MIXER_MIC] >> 8;
1667                levels |= levels << 8;
1668                break;
1669
1670        case SOUND_MIXER_LINE1:         /* handset mic: left mic only */
1671                levels = devc->levels[SOUND_MIXER_MIC] & 0xff;
1672                levels |= levels << 8;
1673                break;
1674
1675        case SOUND_MIXER_PHONEIN:       /* phone mic: left aux1 only */
1676                levels = devc->levels[SOUND_MIXER_LINE1] & 0xff;
1677                levels |= levels << 8;
1678                break;
1679
1680        default:
1681                levels = 0;
1682        }
1683
1684        return levels;
1685}
1686
1687/*
1688 * Waveartist specific mixer information.
1689 */
1690static const struct waveartist_mixer_info netwinder_mixer = {
1691        .supported_devs = SOUND_MASK_VOLUME  | SOUND_MASK_SYNTH   |
1692                        SOUND_MASK_PCM     | SOUND_MASK_SPEAKER |
1693                        SOUND_MASK_LINE    | SOUND_MASK_MIC     |
1694                        SOUND_MASK_IMIX    | SOUND_MASK_LINE1   |
1695                        SOUND_MASK_PHONEIN | SOUND_MASK_PHONEOUT|
1696                        SOUND_MASK_IGAIN,
1697
1698        .recording_devs = SOUND_MASK_LINE    | SOUND_MASK_MIC     |
1699                        SOUND_MASK_IMIX    | SOUND_MASK_LINE1   |
1700                        SOUND_MASK_PHONEIN,
1701
1702        .stereo_devs    = SOUND_MASK_VOLUME  | SOUND_MASK_SYNTH   |
1703                        SOUND_MASK_PCM     | SOUND_MASK_LINE    |
1704                        SOUND_MASK_IMIX    | SOUND_MASK_IGAIN,
1705
1706        .select_input   = netwinder_select_input,
1707        .decode_mixer   = netwinder_decode_mixer,
1708        .get_mixer      = netwinder_get_mixer,
1709};
1710
1711static void
1712vnc_configure_mixer(wavnc_info *devc, unsigned int recmask)
1713{
1714        if (!devc->no_autoselect) {
1715                if (devc->handset_detect) {
1716                        recmask = SOUND_MASK_LINE1;
1717                        devc->spkr_mute_state = devc->line_mute_state = 1;
1718                } else if (devc->telephone_detect) {
1719                        recmask = SOUND_MASK_PHONEIN;
1720                        devc->spkr_mute_state = devc->line_mute_state = 1;
1721                } else {
1722                        /* unless someone has asked for LINE-IN,
1723                         * we default to MIC
1724                         */
1725                        if ((devc->recmask & SOUND_MASK_LINE) == 0)
1726                                devc->recmask = SOUND_MASK_MIC;
1727                        devc->spkr_mute_state = devc->line_mute_state = 0;
1728                }
1729                vnc_mute_spkr(devc);
1730                vnc_mute_lout(devc);
1731
1732                if (recmask != devc->recmask)
1733                        waveartist_set_recmask(devc, recmask);
1734        }
1735}
1736
1737static int
1738vnc_slider(wavnc_info *devc)
1739{
1740        signed int slider_volume;
1741        unsigned int temp, old_hs, old_td;
1742
1743        /*
1744         * read the "buttons" state.
1745         *  Bit 4 = 0 means handset present
1746         *  Bit 5 = 1 means phone offhook
1747         */
1748        temp = inb(0x201);
1749
1750        old_hs = devc->handset_detect;
1751        old_td = devc->telephone_detect;
1752
1753        devc->handset_detect = !(temp & 0x10);
1754        devc->telephone_detect = !!(temp & 0x20);
1755
1756        if (!devc->no_autoselect &&
1757            (old_hs != devc->handset_detect ||
1758             old_td != devc->telephone_detect))
1759                vnc_configure_mixer(devc, devc->recmask);
1760
1761        slider_volume = vnc_volume_slider(devc);
1762
1763        /*
1764         * If we're using software controlled volume, and
1765         * the slider moves by more than 20%, then we
1766         * switch back to slider controlled volume.
1767         */
1768        if (abs(devc->slider_vol - slider_volume) > 20)
1769                devc->use_slider = 1;
1770
1771        /*
1772         * use only left channel
1773         */
1774        temp = levels[SOUND_MIXER_VOLUME] & 0xFF;
1775
1776        if (slider_volume != temp && devc->use_slider) {
1777                devc->slider_vol = slider_volume;
1778
1779                waveartist_set_mixer(devc, SOUND_MIXER_VOLUME,
1780                        slider_volume | slider_volume << 8);
1781
1782                return 1;
1783        }
1784
1785        return 0;
1786}
1787
1788static void
1789vnc_slider_tick(unsigned long data)
1790{
1791        int next_timeout;
1792
1793        if (vnc_slider(adev_info + data))
1794                next_timeout = 5;       // mixer reported change
1795        else
1796                next_timeout = VNC_TIMER_PERIOD;
1797
1798        mod_timer(&vnc_timer, jiffies + next_timeout);
1799}
1800
1801static int
1802vnc_private_ioctl(int dev, unsigned int cmd, int __user * arg)
1803{
1804        wavnc_info *devc = (wavnc_info *)audio_devs[dev]->devc;
1805        int val;
1806
1807        switch (cmd) {
1808        case SOUND_MIXER_PRIVATE1:
1809        {
1810                u_int prev_spkr_mute, prev_line_mute, prev_auto_state;
1811                int val;
1812
1813                if (get_user(val, arg))
1814                        return -EFAULT;
1815
1816                /* check if parameter is logical */
1817                if (val & ~(VNC_MUTE_INTERNAL_SPKR |
1818                            VNC_MUTE_LINE_OUT |
1819                            VNC_DISABLE_AUTOSWITCH))
1820                        return -EINVAL;
1821
1822                prev_auto_state = devc->no_autoselect;
1823                prev_spkr_mute  = devc->spkr_mute_state;
1824                prev_line_mute  = devc->line_mute_state;
1825
1826                devc->no_autoselect   = (val & VNC_DISABLE_AUTOSWITCH) ? 1 : 0;
1827                devc->spkr_mute_state = (val & VNC_MUTE_INTERNAL_SPKR) ? 1 : 0;
1828                devc->line_mute_state = (val & VNC_MUTE_LINE_OUT) ? 1 : 0;
1829
1830                if (prev_spkr_mute != devc->spkr_mute_state)
1831                        vnc_mute_spkr(devc);
1832
1833                if (prev_line_mute != devc->line_mute_state)
1834                        vnc_mute_lout(devc);
1835
1836                if (prev_auto_state != devc->no_autoselect)
1837                        vnc_configure_mixer(devc, devc->recmask);
1838
1839                return 0;
1840        }
1841
1842        case SOUND_MIXER_PRIVATE2:
1843                if (get_user(val, arg))
1844                        return -EFAULT;
1845
1846                switch (val) {
1847#define VNC_SOUND_PAUSE         0x53    //to pause the DSP
1848#define VNC_SOUND_RESUME        0x57    //to unpause the DSP
1849                case VNC_SOUND_PAUSE:
1850                        waveartist_cmd1(devc, 0x16);
1851                        break;
1852
1853                case VNC_SOUND_RESUME:
1854                        waveartist_cmd1(devc, 0x18);
1855                        break;
1856
1857                default:
1858                        return -EINVAL;
1859                }
1860                return 0;
1861
1862        /* private ioctl to allow bulk access to waveartist */
1863        case SOUND_MIXER_PRIVATE3:
1864        {
1865                unsigned long   flags;
1866                int             mixer_reg[15], i, val;
1867
1868                if (get_user(val, arg))
1869                        return -EFAULT;
1870                if (copy_from_user(mixer_reg, (void *)val, sizeof(mixer_reg)))
1871                        return -EFAULT;
1872
1873                switch (mixer_reg[14]) {
1874                case MIXER_PRIVATE3_RESET:
1875                        waveartist_mixer_reset(devc);
1876                        break;
1877
1878                case MIXER_PRIVATE3_WRITE:
1879                        waveartist_cmd3(devc, WACMD_SET_MIXER, mixer_reg[0], mixer_reg[4]);
1880                        waveartist_cmd3(devc, WACMD_SET_MIXER, mixer_reg[1], mixer_reg[5]);
1881                        waveartist_cmd3(devc, WACMD_SET_MIXER, mixer_reg[2], mixer_reg[6]);
1882                        waveartist_cmd3(devc, WACMD_SET_MIXER, mixer_reg[3], mixer_reg[7]);
1883                        waveartist_cmd3(devc, WACMD_SET_MIXER, mixer_reg[8], mixer_reg[9]);
1884
1885                        waveartist_cmd3(devc, WACMD_SET_LEVEL, mixer_reg[10], mixer_reg[11]);
1886                        waveartist_cmd3(devc, WACMD_SET_LEVEL, mixer_reg[12], mixer_reg[13]);
1887                        break;
1888
1889                case MIXER_PRIVATE3_READ:
1890                        spin_lock_irqsave(&waveartist_lock, flags);
1891
1892                        for (i = 0x30; i < 14 << 8; i += 1 << 8)
1893                                waveartist_cmd(devc, 1, &i, 1, mixer_reg + (i >> 8));
1894
1895                        spin_unlock_irqrestore(&waveartist_lock, flags);
1896
1897                        if (copy_to_user((void *)val, mixer_reg, sizeof(mixer_reg)))
1898                                return -EFAULT;
1899                        break;
1900
1901                default:
1902                        return -EINVAL;
1903                }
1904                return 0;
1905        }
1906
1907        /* read back the state from PRIVATE1 */
1908        case SOUND_MIXER_PRIVATE4:
1909                val = (devc->spkr_mute_state  ? VNC_MUTE_INTERNAL_SPKR : 0) |
1910                      (devc->line_mute_state  ? VNC_MUTE_LINE_OUT      : 0) |
1911                      (devc->handset_detect   ? VNC_HANDSET_DETECT     : 0) |
1912                      (devc->telephone_detect ? VNC_PHONE_DETECT       : 0) |
1913                      (devc->no_autoselect    ? VNC_DISABLE_AUTOSWITCH : 0);
1914
1915                return put_user(val, arg) ? -EFAULT : 0;
1916        }
1917
1918        if (_SIOC_DIR(cmd) & _SIOC_WRITE) {
1919                /*
1920                 * special case for master volume: if we
1921                 * received this call - switch from hw
1922                 * volume control to a software volume
1923                 * control, till the hw volume is modified
1924                 * to signal that user wants to be back in
1925                 * hardware...
1926                 */
1927                if ((cmd & 0xff) == SOUND_MIXER_VOLUME)
1928                        devc->use_slider = 0;
1929
1930                /* speaker output            */
1931                if ((cmd & 0xff) == SOUND_MIXER_SPEAKER) {
1932                        unsigned int val, l, r;
1933
1934                        if (get_user(val, arg))
1935                                return -EFAULT;
1936
1937                        l = val & 0x7f;
1938                        r = (val & 0x7f00) >> 8;
1939                        val = (l + r) / 2;
1940                        devc->levels[SOUND_MIXER_SPEAKER] = val | (val << 8);
1941                        devc->spkr_mute_state = (val <= 50);
1942                        vnc_mute_spkr(devc);
1943                        return 0;
1944                }
1945        }
1946
1947        return -ENOIOCTLCMD;
1948}
1949
1950#endif
1951
1952static struct address_info cfg;
1953
1954static int attached;
1955
1956static int __initdata io = 0;
1957static int __initdata irq = 0;
1958static int __initdata dma = 0;
1959static int __initdata dma2 = 0;
1960
1961
1962static int __init init_waveartist(void)
1963{
1964        const struct waveartist_mixer_info *mix;
1965
1966        if (!io && machine_is_netwinder()) {
1967                /*
1968                 * The NetWinder WaveArtist is at a fixed address.
1969                 * If the user does not supply an address, use the
1970                 * well-known parameters.
1971                 */
1972                io   = 0x250;
1973                irq  = 12;
1974                dma  = 3;
1975                dma2 = 7;
1976        }
1977
1978        mix = &waveartist_mixer;
1979#ifdef CONFIG_ARCH_NETWINDER
1980        if (machine_is_netwinder())
1981                mix = &netwinder_mixer;
1982#endif
1983
1984        cfg.io_base = io;
1985        cfg.irq = irq;
1986        cfg.dma = dma;
1987        cfg.dma2 = dma2;
1988
1989        if (!probe_waveartist(&cfg))
1990                return -ENODEV;
1991
1992        attach_waveartist(&cfg, mix);
1993        attached = 1;
1994
1995        return 0;
1996}
1997
1998static void __exit cleanup_waveartist(void)
1999{
2000        if (attached)
2001                unload_waveartist(&cfg);
2002}
2003
2004module_init(init_waveartist);
2005module_exit(cleanup_waveartist);
2006
2007#ifndef MODULE
2008static int __init setup_waveartist(char *str)
2009{
2010        /* io, irq, dma, dma2 */
2011        int ints[5];
2012        
2013        str = get_options(str, ARRAY_SIZE(ints), ints);
2014        
2015        io      = ints[1];
2016        irq     = ints[2];
2017        dma     = ints[3];
2018        dma2    = ints[4];
2019
2020        return 1;
2021}
2022__setup("waveartist=", setup_waveartist);
2023#endif
2024
2025MODULE_DESCRIPTION("Rockwell WaveArtist RWA-010 sound driver");
2026module_param(io, int, 0);               /* IO base */
2027module_param(irq, int, 0);              /* IRQ */
2028module_param(dma, int, 0);              /* DMA */
2029module_param(dma2, int, 0);             /* DMA2 */
2030MODULE_LICENSE("GPL");
2031