sound/parisc/harmony.c

   1 /*
   2  *  Harmony chipset driver
   3  *
   4  *      This is a sound driver for ASP's and Lasi's Harmony sound chip
   5  *      and is unlikely to be used for anything other than on a HP PA-RISC.
   6  *
   7  *      Harmony is found in HP 712s, 715/new and many other GSC based machines.
   8  *      On older 715 machines you'll find the technically identical chip
   9  *      called 'Vivace'. Both Harmony and Vivace are supported by this driver.
  10  *
  11  *  this ALSA driver is based on OSS driver by:
  12  *      Copyright 2000 (c) Linuxcare Canada, Alex deVries <alex@linuxcare.com>
  13  *      Copyright 2000-2002 (c) Helge Deller <deller@gmx.de>
  14  *      Copyright 2001 (c) Matthieu Delahaye <delahaym@esiee.fr>
  15  *
  16  * TODO:
  17  * - use generic DMA interface and ioremap()/iounmap()
  18  * - capture is still untested (and probaby non-working)
  19  * - spin locks
  20  * - implement non-consistent DMA pages
  21  * - implement gain meter
  22  * - module parameters
  23  * - correct cleaning sequence
  24  * - better error checking
  25  * - try to have a better quality.
  26  *
  27  */
  28
  29 /*
  30  * Harmony chipset 'modus operandi'.
  31  * - This chipset is found in some HP 32bit workstations, like 712, or B132 class.
  32  * most of controls are done through registers. Register are found at a fixed offset
  33  * from the hard physical adress, given in struct dev by register_parisc_driver.
  34  *
  35  * Playback and recording use 4kb pages (dma or not, depending on the machine).
  36  *
  37  * Most of PCM playback & capture is done through interrupt. When harmony needs
  38  * a new buffer to put recorded data or read played PCM, it sends an interrupt.
  39  * Bits 2 and 10 of DSTATUS register are '1' when harmony needs respectively
  40  * a new page for recording and playing.
  41  * Interrupt are disabled/enabled by writing to bit 32 of DSTATUS.
  42  * Adresses of next page to be played is put in PNXTADD register, next page
  43  * to be recorded is put in RNXTADD. There is 2 read-only registers, PCURADD and
  44  * RCURADD that provides adress of current page.
  45  *
  46  * Harmony has no way to control full duplex or half duplex mode. It means
  47  * that we always need to provide adresses of playback and capture data, even
  48  * when this is not needed. That's why we statically alloc one graveyard
  49  * buffer (to put recorded data in play-only mode) and a silence buffer.
  50  *
  51  * Bitrate, number of channels and data format are controlled with
  52  * the CNTL register.
  53  *
  54  * Mixer work is done through one register (GAINCTL). Only input gain,
  55  * output attenuation and general attenuation control is provided. There is
  56  * also controls for enabling/disabling internal speaker and line
  57  * input.
  58  *
  59  * Buffers used by this driver are all DMA consistent.
  60  */
  61
  62 #include <linux/delay.h>
  63 #include <sound/driver.h>
  64 #include <linux/init.h>
  65 #include <linux/interrupt.h>
  66 #include <linux/slab.h>
  67 #include <linux/time.h>
  68 #include <linux/wait.h>
  69 #include <linux/moduleparam.h>
  70 #include <sound/core.h>
  71 #include <sound/control.h>
  72 #include <sound/pcm.h>
  73 #include <sound/rawmidi.h>
  74 #include <sound/initval.h>
  75 #include <sound/info.h>
  76 #include <asm/hardware.h>
  77 #include <asm/io.h>
  78 #include <asm/parisc-device.h>
  79
  80 MODULE_AUTHOR("Laurent Canet <canetl@esiee.fr>");
  81 MODULE_DESCRIPTION("ALSA Harmony sound driver");
  82 MODULE_LICENSE("GPL");
  83 MODULE_SUPPORTED_DEVICE("{{ALSA,Harmony soundcard}}");
  84
  85 #undef DEBUG
  86 #ifdef DEBUG
  87 # define DPRINTK printk
  88 #else
  89 # define DPRINTK(x,...)
  90 #endif
  91
  92 #define PFX     "harmony: "
  93
  94 #define MAX_PCM_DEVICES         1
  95 #define MAX_PCM_SUBSTREAMS      4
  96 #define MAX_MIDI_DEVICES        0
  97
  98 #define HARMONY_BUF_SIZE        4096
  99 #define MAX_BUFS                10
 100 #define MAX_BUFFER_SIZE         (MAX_BUFS * HARMONY_BUF_SIZE)
 101
 102 /* number of silence & graveyard buffers */
 103 #define GRAVEYARD_BUFS          3
 104 #define SILENCE_BUFS            3
 105
 106 #define HARMONY_CNTL_C          0x80000000
 107
 108 #define HARMONY_DSTATUS_PN      0x00000200
 109 #define HARMONY_DSTATUS_RN      0x00000002
 110 #define HARMONY_DSTATUS_IE      0x80000000
 111
 112 #define HARMONY_DF_16BIT_LINEAR 0x00000000
 113 #define HARMONY_DF_8BIT_ULAW    0x00000001
 114 #define HARMONY_DF_8BIT_ALAW    0x00000002
 115
 116 #define HARMONY_SS_MONO         0x00000000
 117 #define HARMONY_SS_STEREO       0x00000001
 118
 119 /*
 120  * Channels Mask in mixer register
 121  * try some "reasonable" default gain values
 122  */
 123
 124 #define HARMONY_GAIN_TOTAL_SILENCE 0x00F00FFF
 125
 126 /* the following should be enough (mixer is
 127  * very sensible on harmony)
 128  */
 129 #define HARMONY_GAIN_DEFAULT       0x0F2FF082
 130
 131
 132 /* useless since only one card is supported ATM */
 133 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
 134 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
 135 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;
 136 static int boot_devs;
 137
 138 module_param_array(index, int, boot_devs, 0444);
 139 MODULE_PARM_DESC(index, "Index value for Sun CS4231 soundcard.");
 140 module_param_array(id, charp, boot_devs, 0444);
 141 MODULE_PARM_DESC(id, "ID string for Sun CS4231 soundcard.");
 142 module_param_array(enable, bool, boot_devs, 0444);
 143 MODULE_PARM_DESC(enable, "Enable Sun CS4231 soundcard.");
 144
 145 /* Register offset (from base hpa) */
 146 #define REG_ID          0x00
 147 #define REG_RESET       0x04
 148 #define REG_CNTL        0x08
 149 #define REG_GAINCTL     0x0C
 150 #define REG_PNXTADD     0x10
 151 #define REG_PCURADD     0x14
 152 #define REG_RNXTADD     0x18
 153 #define REG_RCURADD     0x1C
 154 #define REG_DSTATUS     0x20
 155 #define REG_OV          0x24
 156 #define REG_PIO         0x28
 157 #define REG_DIAG        0x3C
 158
 159 /*
 160  * main harmony structure
 161  */
 162
 163 typedef struct snd_card_harmony {
 164
 165         /* spinlocks (To be done) */
 166         spinlock_t mixer_lock;
 167         spinlock_t control_lock;
 168
 169         /* parameters */
 170         int irq;
 171         unsigned long hpa;
 172         int id;
 173         int rev;
 174
 175         u32 current_gain;
 176         int data_format;                /* HARMONY_DF_xx_BIT_xxx */
 177         int sample_rate;                /* HARMONY_SR_xx_KHZ */
 178         int stereo_select;      /* HARMONY_SS_MONO or HARMONY_SS_STEREO */
 179         int format_initialized;
 180
 181         unsigned long ply_buffer;
 182         int ply_buf;
 183         int ply_count;
 184         int ply_size;
 185         int ply_stopped;
 186         int ply_total;
 187
 188         unsigned long cap_buffer;
 189         int cap_buf;
 190         int cap_count;
 191         int cap_size;
 192         int cap_stopped;
 193         int cap_total;
 194
 195         struct parisc_device *pa_dev;
 196
 197         struct snd_dma_device dma_dev;
 198
 199         /* the graveyard buffer is used as recording buffer when playback,
 200          * because harmony always want a buffer to put recorded data */
 201         struct snd_dma_buffer graveyard_dma;
 202         int graveyard_count;
 203
 204         /* same thing for silence buffer */
 205         struct snd_dma_buffer silence_dma;
 206         int silence_count;
 207
 208         /* alsa stuff */
 209         snd_card_t *card;
 210         snd_pcm_t *pcm;
 211         snd_pcm_substream_t *playback_substream;
 212         snd_pcm_substream_t *capture_substream;
 213         snd_info_entry_t *proc_entry;
 214 } snd_card_harmony_t;
 215
 216 static snd_card_t *snd_harmony_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
 217
 218 /* wait to be out of control mode */
 219 static inline void snd_harmony_wait_cntl(snd_card_harmony_t *harmony)
 220 {
 221         int timeout = 5000;
 222
 223         while ( (gsc_readl(harmony->hpa+REG_CNTL) & HARMONY_CNTL_C) && --timeout)
 224         {
 225                 /* Wait */ ;
 226         }
 227         if (timeout == 0) DPRINTK(KERN_DEBUG PFX "Error: wait cntl timeouted\n");
 228 }
 229
 230
 231 /*
 232  * sample rate routines
 233  */
 234 static unsigned int snd_card_harmony_rates[] = {
 235         5125, 6615, 8000, 9600,
 236         11025, 16000, 18900, 22050,
 237         27428, 32000, 33075, 37800,
 238         44100, 48000
 239 };
 240
 241 static snd_pcm_hw_constraint_list_t hw_constraint_rates = {
 242         .count = ARRAY_SIZE(snd_card_harmony_rates),
 243         .list = snd_card_harmony_rates,
 244         .mask = 0,
 245 };
 246
 247 #define HARMONY_SR_8KHZ         0x08
 248 #define HARMONY_SR_16KHZ        0x09
 249 #define HARMONY_SR_27KHZ        0x0A
 250 #define HARMONY_SR_32KHZ        0x0B
 251 #define HARMONY_SR_48KHZ        0x0E
 252 #define HARMONY_SR_9KHZ         0x0F
 253 #define HARMONY_SR_5KHZ         0x10
 254 #define HARMONY_SR_11KHZ        0x11
 255 #define HARMONY_SR_18KHZ        0x12
 256 #define HARMONY_SR_22KHZ        0x13
 257 #define HARMONY_SR_37KHZ        0x14
 258 #define HARMONY_SR_44KHZ        0x15
 259 #define HARMONY_SR_33KHZ        0x16
 260 #define HARMONY_SR_6KHZ         0x17
 261
 262 /* bits corresponding to the entries of snd_card_harmony_rates */
 263 static unsigned int rate_bits[14] = {
 264         HARMONY_SR_5KHZ, HARMONY_SR_6KHZ, HARMONY_SR_8KHZ,
 265         HARMONY_SR_9KHZ, HARMONY_SR_11KHZ, HARMONY_SR_16KHZ,
 266         HARMONY_SR_18KHZ, HARMONY_SR_22KHZ, HARMONY_SR_27KHZ,
 267         HARMONY_SR_32KHZ, HARMONY_SR_33KHZ, HARMONY_SR_37KHZ,
 268         HARMONY_SR_44KHZ, HARMONY_SR_48KHZ
 269 };
 270
 271 /* snd_card_harmony_rate_bits
 272  * @rate:       index of current data rate in list
 273  * returns: harmony hex code for registers
 274  */
 275 static unsigned int snd_card_harmony_rate_bits(int rate)
 276 {
 277         unsigned int idx;
 278
 279         for (idx = 0; idx <= ARRAY_SIZE(snd_card_harmony_rates); idx++)
 280                 if (snd_card_harmony_rates[idx] == rate)
 281                         return rate_bits[idx];
 282         return HARMONY_SR_44KHZ; /* fallback */
 283 }
 284
 285 /*
 286  * update controls (data format, sample rate, number of channels)
 287  * according to value supplied in data structure
 288  */
 289 void snd_harmony_update_control(snd_card_harmony_t *harmony)
 290 {
 291         u32 default_cntl;
 292
 293         /* Set CNTL */
 294         default_cntl = (HARMONY_CNTL_C |        /* The C bit */
 295                 (harmony->data_format << 6) |   /* Set the data format */
 296                 (harmony->stereo_select << 5) | /* Stereo select */
 297                 (harmony->sample_rate));                /* Set sample rate */
 298
 299         /* initialize CNTL */
 300         snd_harmony_wait_cntl(harmony);
 301
 302         gsc_writel(default_cntl, harmony->hpa+REG_CNTL);
 303
 304 }
 305
 306 /*
 307  * interruption controls routines
 308  */
 309
 310 static void snd_harmony_disable_interrupts(snd_card_harmony_t *chip)
 311 {
 312         snd_harmony_wait_cntl(chip);
 313         gsc_writel(0, chip->hpa+REG_DSTATUS);
 314 }
 315
 316 static void snd_harmony_enable_interrupts(snd_card_harmony_t *chip)
 317 {
 318         snd_harmony_wait_cntl(chip);
 319         gsc_writel(HARMONY_DSTATUS_IE, chip->hpa+REG_DSTATUS);
 320 }
 321
 322 /*
 323  * interruption routine:
 324  * The interrupt routine must provide adresse of next physical pages
 325  * used by harmony
 326  */
 327 static int snd_card_harmony_interrupt(int irq, void *dev, struct pt_regs *regs)
 328 {
 329         snd_card_harmony_t *harmony = (snd_card_harmony_t *)dev;
 330         u32 dstatus = 0;
 331         unsigned long hpa = harmony->hpa;
 332
 333         /* Turn off interrupts */
 334         snd_harmony_disable_interrupts(harmony);
 335
 336         /* wait for control to free */
 337         snd_harmony_wait_cntl(harmony);
 338
 339         /* Read dstatus and pcuradd (the current address) */
 340         dstatus = gsc_readl(hpa+REG_DSTATUS);
 341
 342         /* Check if this is a request to get the next play buffer */
 343         if (dstatus & HARMONY_DSTATUS_PN) {
 344                 if (harmony->playback_substream) {
 345                         harmony->ply_buf += harmony->ply_count;
 346                         harmony->ply_buf %= harmony->ply_size;
 347
 348                         gsc_writel(harmony->ply_buffer + harmony->ply_buf,
 349                                         hpa+REG_PNXTADD);
 350
 351                         snd_pcm_period_elapsed(harmony->playback_substream);
 352                         harmony->ply_total++;
 353                 } else {
 354                         gsc_writel(harmony->silence_dma.addr +
 355                                    (HARMONY_BUF_SIZE*harmony->silence_count),
 356                                    hpa+REG_PNXTADD);
 357                         harmony->silence_count++;
 358                         harmony->silence_count %= SILENCE_BUFS;
 359                 }
 360         }
 361
 362         /* Check if we're being asked to fill in a recording buffer */
 363         if (dstatus & HARMONY_DSTATUS_RN) {
 364                 if (harmony->capture_substream) {
 365                         harmony->cap_buf += harmony->cap_count;
 366                         harmony->cap_buf %= harmony->cap_size;
 367
 368                         gsc_writel(harmony->cap_buffer + harmony->cap_buf,
 369                                         hpa+REG_RNXTADD);
 370
 371                         snd_pcm_period_elapsed(harmony->capture_substream);
 372                         harmony->cap_total++;
 373                 } else {
 374                         /* graveyard buffer */
 375                         gsc_writel(harmony->graveyard_dma.addr +
 376                                    (HARMONY_BUF_SIZE*harmony->graveyard_count),
 377                                    hpa+REG_RNXTADD);
 378                         harmony->graveyard_count++;
 379                         harmony->graveyard_count %= GRAVEYARD_BUFS;
 380                 }
 381         }
 382         snd_harmony_enable_interrupts(harmony);
 383
 384         return IRQ_HANDLED;
 385 }
 386
 387 /*
 388  * proc entry
 389  * this proc file will give some debugging info
 390  */
 391
 392 static void snd_harmony_proc_read(snd_info_entry_t *entry, snd_info_buffer_t *buffer)
 393 {
 394         snd_card_harmony_t *harmony = (snd_card_harmony_t *)entry->private_data;
 395
 396         snd_iprintf(buffer, "LASI Harmony driver\nLaurent Canet <canetl@esiee.fr>\n\n");
 397         snd_iprintf(buffer, "IRQ %d, hpa %lx, id %d rev %d\n",
 398                         harmony->irq, harmony->hpa,
 399                         harmony->id, harmony->rev);
 400         snd_iprintf(buffer, "Current gain %lx\n", (unsigned long) harmony->current_gain);
 401         snd_iprintf(buffer, "\tsample rate=%d\n", harmony->sample_rate);
 402         snd_iprintf(buffer, "\tstereo select=%d\n", harmony->stereo_select);
 403         snd_iprintf(buffer, "\tbitperchan=%d\n\n", harmony->data_format);
 404
 405         snd_iprintf(buffer, "Play status:\n");
 406         snd_iprintf(buffer, "\tstopped %d\n", harmony->ply_stopped);
 407         snd_iprintf(buffer, "\tbuffer %lx, count %d\n", harmony->ply_buffer, harmony->ply_count);
 408         snd_iprintf(buffer, "\tbuf %d size %d\n\n", harmony->ply_buf, harmony->ply_size);
 409
 410         snd_iprintf(buffer, "Capture status:\n");
 411         snd_iprintf(buffer, "\tstopped %d\n", harmony->cap_stopped);
 412         snd_iprintf(buffer, "\tbuffer %lx, count %d\n", harmony->cap_buffer, harmony->cap_count);
 413         snd_iprintf(buffer, "\tbuf %d, size %d\n\n", harmony->cap_buf, harmony->cap_size);
 414
 415         snd_iprintf(buffer, "Funny stats: total played=%d, recorded=%d\n\n", harmony->ply_total, harmony->cap_total);
 416
 417         snd_iprintf(buffer, "Register:\n");
 418         snd_iprintf(buffer, "\tgainctl: %lx\n", (unsigned long) gsc_readl(harmony->hpa+REG_GAINCTL));
 419         snd_iprintf(buffer, "\tcntl: %lx\n", (unsigned long) gsc_readl(harmony->hpa+REG_CNTL));
 420         snd_iprintf(buffer, "\tid: %lx\n", (unsigned long) gsc_readl(harmony->hpa+REG_ID));
 421         snd_iprintf(buffer, "\tpcuradd: %lx\n", (unsigned long) gsc_readl(harmony->hpa+REG_PCURADD));
 422         snd_iprintf(buffer, "\trcuradd: %lx\n", (unsigned long) gsc_readl(harmony->hpa+REG_RCURADD));
 423         snd_iprintf(buffer, "\tpnxtadd: %lx\n", (unsigned long) gsc_readl(harmony->hpa+REG_PNXTADD));
 424         snd_iprintf(buffer, "\trnxtadd: %lx\n", (unsigned long) gsc_readl(harmony->hpa+REG_RNXTADD));
 425         snd_iprintf(buffer, "\tdstatus: %lx\n", (unsigned long) gsc_readl(harmony->hpa+REG_DSTATUS));
 426         snd_iprintf(buffer, "\tov: %lx\n\n", (unsigned long) gsc_readl(harmony->hpa+REG_OV));
 427
 428 }
 429
 430 static void __devinit snd_harmony_proc_init(snd_card_harmony_t *harmony)
 431 {
 432         snd_info_entry_t *entry;
 433
 434         if (! snd_card_proc_new(harmony->card, "harmony", &entry))
 435                 snd_info_set_text_ops(entry, harmony, 2048, snd_harmony_proc_read);
 436 }
 437
 438 /*
 439  * PCM Stuff
 440  */
 441
 442 static int snd_card_harmony_playback_ioctl(snd_pcm_substream_t * substream,
 443                                          unsigned int cmd,
 444                                          void *arg)
 445 {
 446         return snd_pcm_lib_ioctl(substream, cmd, arg);
 447 }
 448
 449 static int snd_card_harmony_capture_ioctl(snd_pcm_substream_t * substream,
 450                                         unsigned int cmd,
 451                                         void *arg)
 452 {
 453         return snd_pcm_lib_ioctl(substream, cmd, arg);
 454 }
 455
 456 static int snd_card_harmony_playback_trigger(snd_pcm_substream_t * substream,
 457                                            int cmd)
 458 {
 459         snd_card_harmony_t *harmony = snd_pcm_substream_chip(substream);
 460
 461         switch (cmd) {
 462                 case SNDRV_PCM_TRIGGER_STOP:
 463                         if (harmony->ply_stopped)
 464                                 return -EBUSY;
 465                         harmony->ply_stopped = 1;
 466                         snd_harmony_disable_interrupts(harmony);
 467                         break;
 468                 case SNDRV_PCM_TRIGGER_START:
 469                         if (!harmony->ply_stopped)
 470                                 return -EBUSY;
 471                         harmony->ply_stopped = 0;
 472                         /* write the location of the first buffer to play */
 473                         gsc_writel(harmony->ply_buffer, harmony->hpa+REG_PNXTADD);
 474                         snd_harmony_enable_interrupts(harmony);
 475                         break;
 476                 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 477                 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 478                 case SNDRV_PCM_TRIGGER_SUSPEND:
 479                         DPRINTK(KERN_INFO PFX "received unimplemented trigger: %d\n", cmd);
 480                 default:
 481                         return -EINVAL;
 482         }
 483         return 0;
 484 }
 485
 486 static int snd_card_harmony_capture_trigger(snd_pcm_substream_t * substream,
 487                                           int cmd)
 488 {
 489         snd_card_harmony_t *harmony = snd_pcm_substream_chip(substream);
 490
 491         switch (cmd) {
 492                 case SNDRV_PCM_TRIGGER_STOP:
 493                         if (harmony->cap_stopped)
 494                                 return -EBUSY;
 495                         harmony->cap_stopped = 1;
 496                         snd_harmony_disable_interrupts(harmony);
 497                         break;
 498                 case SNDRV_PCM_TRIGGER_START:
 499                         if (!harmony->cap_stopped)
 500                                 return -EBUSY;
 501                         harmony->cap_stopped = 0;
 502                         snd_harmony_enable_interrupts(harmony);
 503                         break;
 504                 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 505                 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 506                 case SNDRV_PCM_TRIGGER_SUSPEND:
 507                         DPRINTK(KERN_INFO PFX "Received unimplemented trigger: %d\n", cmd);
 508                 default:
 509                         return -EINVAL;
 510         }
 511         return 0;
 512 }
 513
 514 /* set data format */
 515 static int snd_harmony_set_data_format(snd_card_harmony_t *harmony, int pcm_format)
 516 {
 517         int old_format = harmony->data_format;
 518         int new_format = old_format;
 519         switch (pcm_format) {
 520         case SNDRV_PCM_FORMAT_S16_BE:
 521                 new_format = HARMONY_DF_16BIT_LINEAR;
 522                 break;
 523         case SNDRV_PCM_FORMAT_A_LAW:
 524                 new_format = HARMONY_DF_8BIT_ALAW;
 525                 break;
 526         case SNDRV_PCM_FORMAT_MU_LAW:
 527                 new_format = HARMONY_DF_8BIT_ULAW;
 528                 break;
 529         }
 530         /* re-initialize silence buffer if needed */
 531         if (old_format != new_format)
 532                 snd_pcm_format_set_silence(pcm_format, harmony->silence_dma.area,
 533                                            (HARMONY_BUF_SIZE * SILENCE_BUFS * 8) / snd_pcm_format_width(pcm_format));
 534
 535         return new_format;
 536 }
 537
 538 static int snd_card_harmony_playback_prepare(snd_pcm_substream_t * substream)
 539 {
 540         snd_card_harmony_t *harmony = snd_pcm_substream_chip(substream);
 541         snd_pcm_runtime_t *runtime = substream->runtime;
 542
 543         harmony->ply_size                       = snd_pcm_lib_buffer_bytes(substream);
 544         harmony->ply_count                      = snd_pcm_lib_period_bytes(substream);
 545         harmony->ply_buf                        = 0;
 546         harmony->ply_stopped            = 1;
 547
 548         /* initialize given sample rate */
 549         harmony->sample_rate = snd_card_harmony_rate_bits(runtime->rate);
 550
 551         /* data format */
 552         harmony->data_format = snd_harmony_set_data_format(harmony, runtime->format);
 553
 554         /* number of channels */
 555         if (runtime->channels == 2)
 556                 harmony->stereo_select = HARMONY_SS_STEREO;
 557         else
 558                 harmony->stereo_select = HARMONY_SS_MONO;
 559
 560         DPRINTK(KERN_INFO PFX "Playback_prepare, sr=%d(%x), df=%x, ss=%x hpa=%lx\n", runtime->rate,
 561                                 harmony->sample_rate, harmony->data_format, harmony->stereo_select, harmony->hpa);
 562         snd_harmony_update_control(harmony);
 563         harmony->format_initialized = 1;
 564         harmony->ply_buffer = runtime->dma_addr;
 565
 566         return 0;
 567 }
 568
 569 static int snd_card_harmony_capture_prepare(snd_pcm_substream_t * substream)
 570 {
 571         snd_pcm_runtime_t *runtime = substream->runtime;
 572         snd_card_harmony_t *harmony = snd_pcm_substream_chip(substream);
 573
 574         harmony->cap_size                       = snd_pcm_lib_buffer_bytes(substream);
 575         harmony->cap_count                      = snd_pcm_lib_period_bytes(substream);
 576         harmony->cap_count                      = 0;
 577         harmony->cap_stopped            = 1;
 578
 579         /* initialize given sample rate */
 580         harmony->sample_rate = snd_card_harmony_rate_bits(runtime->rate);
 581
 582         /* data format */
 583         harmony->data_format = snd_harmony_set_data_format(harmony, runtime->format);
 584
 585         /* number of channels */
 586         if (runtime->channels == 1)
 587                 harmony->stereo_select = HARMONY_SS_MONO;
 588         else if (runtime->channels == 2)
 589                 harmony->stereo_select = HARMONY_SS_STEREO;
 590
 591         snd_harmony_update_control(harmony);
 592         harmony->format_initialized = 1;
 593
 594         harmony->cap_buffer = runtime->dma_addr;
 595
 596         return 0;
 597 }
 598
 599 static snd_pcm_uframes_t snd_card_harmony_capture_pointer(snd_pcm_substream_t * substream)
 600 {
 601         snd_pcm_runtime_t *runtime = substream->runtime;
 602         snd_card_harmony_t *harmony = snd_pcm_substream_chip(substream);
 603         unsigned long rcuradd;
 604         int recorded;
 605
 606         if (harmony->cap_stopped) return 0;
 607         if (harmony->capture_substream == NULL) return 0;
 608
 609         rcuradd = gsc_readl(harmony->hpa+REG_RCURADD);
 610         recorded = (rcuradd - harmony->cap_buffer);
 611         recorded %= harmony->cap_size;
 612
 613         return bytes_to_frames(runtime, recorded);
 614 }
 615
 616 /*
 617  */
 618
 619 static snd_pcm_uframes_t snd_card_harmony_playback_pointer(snd_pcm_substream_t * substream)
 620 {
 621         snd_pcm_runtime_t *runtime = substream->runtime;
 622         snd_card_harmony_t *harmony = snd_pcm_substream_chip(substream);
 623         int played;
 624         long int pcuradd = gsc_readl(harmony->hpa+REG_PCURADD);
 625
 626         if ((harmony->ply_stopped) || (harmony->playback_substream == NULL)) return 0;
 627         if ((harmony->ply_buffer == 0) || (harmony->ply_size == 0)) return 0;
 628
 629         played = (pcuradd - harmony->ply_buffer);
 630
 631         printk(KERN_DEBUG PFX "Pointer is %lx-%lx = %d\n", pcuradd, harmony->ply_buffer, played);
 632
 633         if (pcuradd > harmony->ply_buffer + harmony->ply_size) return 0;
 634
 635         return bytes_to_frames(runtime, played);
 636 }
 637
 638 static snd_pcm_hardware_t snd_card_harmony_playback =
 639 {
 640         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 641                                         SNDRV_PCM_INFO_JOINT_DUPLEX |
 642                                         SNDRV_PCM_INFO_MMAP_VALID |
 643                                         SNDRV_PCM_INFO_BLOCK_TRANSFER),
 644         .formats =              (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_BE |
 645                                         SNDRV_PCM_FMTBIT_A_LAW | SNDRV_PCM_FMTBIT_MU_LAW),
 646         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
 647         .rate_min =             5500,
 648         .rate_max =             48000,
 649         .channels_min =         1,
 650         .channels_max =         2,
 651         .buffer_bytes_max =     MAX_BUFFER_SIZE,
 652         .period_bytes_min =     HARMONY_BUF_SIZE,
 653         .period_bytes_max =     HARMONY_BUF_SIZE,
 654         .periods_min =          1,
 655         .periods_max =          MAX_BUFS,
 656         .fifo_size =            0,
 657 };
 658
 659 static snd_pcm_hardware_t snd_card_harmony_capture =
 660 {
 661         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 662                                         SNDRV_PCM_INFO_JOINT_DUPLEX |
 663                                         SNDRV_PCM_INFO_MMAP_VALID |
 664                                         SNDRV_PCM_INFO_BLOCK_TRANSFER),
 665         .formats =              (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_BE |
 666                                         SNDRV_PCM_FMTBIT_A_LAW | SNDRV_PCM_FMTBIT_MU_LAW),
 667         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
 668         .rate_min =             5500,
 669         .rate_max =             48000,
 670         .channels_min =         1,
 671         .channels_max =         2,
 672         .buffer_bytes_max =     MAX_BUFFER_SIZE,
 673         .period_bytes_min =     HARMONY_BUF_SIZE,
 674         .period_bytes_max =     HARMONY_BUF_SIZE,
 675         .periods_min =          1,
 676         .periods_max =          MAX_BUFS,
 677         .fifo_size =            0,
 678 };
 679
 680 static int snd_card_harmony_playback_open(snd_pcm_substream_t * substream)
 681 {
 682         snd_card_harmony_t *harmony = snd_pcm_substream_chip(substream);
 683         snd_pcm_runtime_t *runtime = substream->runtime;
 684         int err;
 685
 686         harmony->playback_substream = substream;
 687         runtime->hw = snd_card_harmony_playback;
 688         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraint_rates);
 689
 690         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 691                 return err;
 692
 693         return 0;
 694 }
 695
 696 static int snd_card_harmony_capture_open(snd_pcm_substream_t * substream)
 697 {
 698         snd_card_harmony_t *harmony = snd_pcm_substream_chip(substream);
 699         snd_pcm_runtime_t *runtime = substream->runtime;
 700         int err;
 701
 702         harmony->capture_substream = substream;
 703         runtime->hw = snd_card_harmony_capture;
 704         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraint_rates);
 705         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 706                 return err;
 707         return 0;
 708
 709 }
 710
 711 static int snd_card_harmony_playback_close(snd_pcm_substream_t * substream)
 712 {
 713         snd_card_harmony_t *harmony = snd_pcm_substream_chip(substream);
 714
 715         harmony->playback_substream = NULL;
 716         harmony->ply_size                       = 0;
 717         harmony->ply_buf                        = 0;
 718         harmony->ply_buffer                     = 0;
 719         harmony->ply_count                      = 0;
 720         harmony->ply_stopped            = 1;
 721         harmony->format_initialized = 0;
 722
 723         return 0;
 724 }
 725
 726 static int snd_card_harmony_capture_close(snd_pcm_substream_t * substream)
 727 {
 728         snd_card_harmony_t *harmony = snd_pcm_substream_chip(substream);
 729
 730         harmony->capture_substream = NULL;
 731         harmony->cap_size                       = 0;
 732         harmony->cap_buf                        = 0;
 733         harmony->cap_buffer                     = 0;
 734         harmony->cap_count                      = 0;
 735         harmony->cap_stopped            = 1;
 736         harmony->format_initialized = 0;
 737
 738         return 0;
 739 }
 740
 741 static int snd_card_harmony_hw_params(snd_pcm_substream_t *substream,
 742                            snd_pcm_hw_params_t * hw_params)
 743 {
 744         int err;
 745
 746         err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 747         if (err > 0 && substream->dma_device.type == SNDRV_DMA_TYPE_CONTINUOUS)
 748                 substream->runtime->dma_addr = __pa(substream->runtime->dma_area);
 749         DPRINTK(KERN_INFO PFX "HW Params returned %d, dma_addr %lx\n", err,
 750                         (unsigned long)substream->runtime->dma_addr);
 751         return err;
 752 }
 753
 754 static int snd_card_harmony_hw_free(snd_pcm_substream_t *substream)
 755 {
 756         snd_pcm_lib_free_pages(substream);
 757         return 0;
 758 }
 759
 760 static snd_pcm_ops_t snd_card_harmony_playback_ops = {
 761         .open =                 snd_card_harmony_playback_open,
 762         .close =                snd_card_harmony_playback_close,
 763         .ioctl =                snd_card_harmony_playback_ioctl,
 764         .hw_params =    snd_card_harmony_hw_params,
 765         .hw_free =              snd_card_harmony_hw_free,
 766         .prepare =              snd_card_harmony_playback_prepare,
 767         .trigger =              snd_card_harmony_playback_trigger,
 768         .pointer =              snd_card_harmony_playback_pointer,
 769 };
 770
 771 static snd_pcm_ops_t snd_card_harmony_capture_ops = {
 772         .open =                 snd_card_harmony_capture_open,
 773         .close =                snd_card_harmony_capture_close,
 774         .ioctl =                snd_card_harmony_capture_ioctl,
 775         .hw_params =    snd_card_harmony_hw_params,
 776         .hw_free =              snd_card_harmony_hw_free,
 777         .prepare =              snd_card_harmony_capture_prepare,
 778         .trigger =              snd_card_harmony_capture_trigger,
 779         .pointer =              snd_card_harmony_capture_pointer,
 780 };
 781
 782 static int snd_card_harmony_pcm_init(snd_card_harmony_t *harmony)
 783 {
 784         snd_pcm_t *pcm;
 785         int err;
 786
 787         /* Request that IRQ */
 788         if (request_irq(harmony->irq, snd_card_harmony_interrupt, 0 ,"harmony", harmony)) {
 789                 printk(KERN_ERR PFX "Error requesting irq %d.\n", harmony->irq);
 790                 return -EFAULT;
 791         }
 792
 793         snd_harmony_disable_interrupts(harmony);
 794
 795         if ((err = snd_pcm_new(harmony->card, "Harmony", 0, 1, 1, &pcm)) < 0)
 796                 return err;
 797
 798         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_card_harmony_playback_ops);
 799         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_card_harmony_capture_ops);
 800
 801         pcm->private_data = harmony;
 802         pcm->info_flags = 0;
 803         strcpy(pcm->name, "Harmony");
 804         harmony->pcm = pcm;
 805
 806         /* initialize graveyard buffer */
 807         harmony->dma_dev.type = SNDRV_DMA_TYPE_DEV;
 808         harmony->dma_dev.dev = &harmony->pa_dev->dev;
 809         err = snd_dma_alloc_pages(harmony->dma_dev.type,
 810                                   harmony->dma_dev.dev,
 811                                   HARMONY_BUF_SIZE*GRAVEYARD_BUFS,
 812                                   &harmony->graveyard_dma);
 813         if (err == -ENOMEM) {
 814                 /* use continuous buffers */
 815                 harmony->dma_dev.type = SNDRV_DMA_TYPE_CONTINUOUS;
 816                 harmony->dma_dev.dev = snd_dma_continuous_data(GFP_KERNEL);
 817                 err = snd_dma_alloc_pages(harmony->dma_dev.type,
 818                                           harmony->dma_dev.dev,
 819                                           HARMONY_BUF_SIZE*GRAVEYARD_BUFS,
 820                                           &harmony->graveyard_dma);
 821         }
 822         if (err < 0) {
 823                 printk(KERN_ERR PFX "can't allocate graveyard buffer\n");
 824                 return err;
 825         }
 826         harmony->graveyard_count = 0;
 827
 828         /* initialize silence buffers */
 829         err = snd_dma_alloc_pages(harmony->dma_dev.type,
 830                                   harmony->dma_dev.dev,
 831                                   HARMONY_BUF_SIZE*SILENCE_BUFS,
 832                                   &harmony->silence_dma);
 833         if (err < 0) {
 834                 printk(KERN_ERR PFX "can't allocate silence buffer\n");
 835                 return err;
 836         }
 837         harmony->silence_count = 0;
 838
 839         if (harmony->dma_dev.type == SNDRV_DMA_TYPE_CONTINUOUS) {
 840                 harmony->graveyard_dma.addr = __pa(harmony->graveyard_dma.area);
 841                 harmony->silence_dma.addr = __pa(harmony->silence_dma.area);
 842         }
 843
 844         harmony->ply_stopped = harmony->cap_stopped = 1;
 845
 846         harmony->playback_substream = NULL;
 847         harmony->capture_substream = NULL;
 848         harmony->graveyard_count = 0;
 849
 850         err = snd_pcm_lib_preallocate_pages_for_all(pcm, harmony->dma_dev.type,
 851                                                     harmony->dma_dev.dev,
 852                                                     MAX_BUFFER_SIZE, MAX_BUFFER_SIZE);
 853         if (err < 0) {
 854                 printk(KERN_ERR PFX "buffer allocation error %d\n", err);
 855                 // return err;
 856         }
 857
 858         return 0;
 859 }
 860
 861 /*
 862  * mixer routines
 863  */
 864
 865 static void snd_harmony_set_new_gain(snd_card_harmony_t *harmony)
 866 {
 867         DPRINTK(KERN_INFO PFX "Setting new gain %x at %lx\n", harmony->current_gain, harmony->hpa+REG_GAINCTL);
 868         /* Wait until we're out of control mode */
 869         snd_harmony_wait_cntl(harmony);
 870
 871         gsc_writel(harmony->current_gain, harmony->hpa+REG_GAINCTL);
 872 }
 873
 874 #define HARMONY_VOLUME(xname, left_shift, right_shift, mask, invert) \
 875 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 876   .info = snd_harmony_mixercontrol_info, \
 877   .get = snd_harmony_volume_get, .put = snd_harmony_volume_put, \
 878   .private_value = ((left_shift) | ((right_shift) << 8) | ((mask) << 16) | ((invert) << 24)) }
 879
 880 static int snd_harmony_mixercontrol_info(snd_kcontrol_t * kcontrol, snd_ctl_elem_info_t * uinfo)
 881 {
 882         int mask = (kcontrol->private_value >> 16) & 0xff;
 883         int left_shift = (kcontrol->private_value) & 0xff;
 884         int right_shift = (kcontrol->private_value >> 8) & 0xff;
 885
 886         uinfo->type = (mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER);
 887         uinfo->count = (left_shift == right_shift) ? 1 : 2;
 888         uinfo->value.integer.min = 0;
 889         uinfo->value.integer.max = mask;
 890         return 0;
 891 }
 892
 893 static int snd_harmony_volume_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 894 {
 895         snd_card_harmony_t *harmony = snd_kcontrol_chip(kcontrol);
 896         int shift_left = (kcontrol->private_value) & 0xff;
 897         int shift_right = (kcontrol->private_value >> 8) & 0xff;
 898         int mask = (kcontrol->private_value >> 16) & 0xff;
 899         int invert = (kcontrol->private_value >> 24) & 0xff;
 900         unsigned long flags;
 901         int left, right;
 902
 903         spin_lock_irqsave(&harmony->mixer_lock, flags);
 904         left = (harmony->current_gain >> shift_left) & mask;
 905         right = (harmony->current_gain >> shift_right) & mask;
 906
 907         if (invert) {
 908                 left = mask - left;
 909                 right = mask - right;
 910         }
 911         ucontrol->value.integer.value[0] = left;
 912         ucontrol->value.integer.value[1] = right;
 913         spin_unlock_irqrestore(&harmony->mixer_lock, flags);
 914
 915         return 0;
 916 }
 917
 918 static int snd_harmony_volume_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 919 {
 920         snd_card_harmony_t *harmony = snd_kcontrol_chip(kcontrol);
 921         int shift_left = (kcontrol->private_value) & 0xff;
 922         int shift_right = (kcontrol->private_value >> 8) & 0xff;
 923         int mask = (kcontrol->private_value >> 16) & 0xff;
 924         int invert = (kcontrol->private_value >> 24) & 0xff;
 925         unsigned long flags;
 926         int left, right;
 927         int old_gain = harmony->current_gain;
 928
 929         left = ucontrol->value.integer.value[0] & mask;
 930         right = ucontrol->value.integer.value[1] & mask;
 931         if (invert) {
 932                 left = mask - left;
 933                 right = mask - right;
 934         }
 935
 936         spin_lock_irqsave(&harmony->mixer_lock, flags);
 937         harmony->current_gain = harmony->current_gain & ~( (mask << shift_right) | (mask << shift_left));
 938         harmony->current_gain = harmony->current_gain | ((left << shift_left) | (right << shift_right) );
 939         snd_harmony_set_new_gain(harmony);
 940         spin_unlock_irqrestore(&harmony->mixer_lock, flags);
 941
 942         return (old_gain - harmony->current_gain);
 943 }
 944
 945 #define HARMONY_CONTROLS (sizeof(snd_harmony_controls)/sizeof(snd_kcontrol_new_t))
 946
 947 static snd_kcontrol_new_t snd_harmony_controls[] = {
 948 HARMONY_VOLUME("PCM Capture Volume", 12, 16, 0x0f, 0),
 949 HARMONY_VOLUME("Master Volume", 20, 20, 0x0f, 1),
 950 HARMONY_VOLUME("PCM Playback Volume", 6, 0, 0x3f, 1),
 951 };
 952
 953 static void __init snd_harmony_reset_codec(snd_card_harmony_t *harmony)
 954 {
 955         snd_harmony_wait_cntl(harmony);
 956         gsc_writel(1, harmony->hpa+REG_RESET);
 957         mdelay(50);             /* wait 50 ms */
 958         gsc_writel(0, harmony->hpa+REG_RESET);
 959 }
 960
 961 /*
 962  * Mute all the output and reset Harmony.
 963  */
 964
 965 static void __init snd_harmony_mixer_reset(snd_card_harmony_t *harmony)
 966 {
 967         harmony->current_gain = HARMONY_GAIN_TOTAL_SILENCE;
 968         snd_harmony_set_new_gain(harmony);
 969         snd_harmony_reset_codec(harmony);
 970         harmony->current_gain = HARMONY_GAIN_DEFAULT;
 971         snd_harmony_set_new_gain(harmony);
 972 }
 973
 974
 975 static int __init snd_card_harmony_mixer_init(snd_card_harmony_t *harmony)
 976 {
 977         snd_card_t *card = harmony->card;
 978         int idx, err;
 979
 980         snd_assert(harmony != NULL, return -EINVAL);
 981         strcpy(card->mixername, "Harmony Gain control interface");
 982
 983         for (idx = 0; idx < HARMONY_CONTROLS; idx++) {
 984                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_harmony_controls[idx], harmony))) < 0)
 985                         return err;
 986         }
 987
 988         snd_harmony_mixer_reset(harmony);
 989
 990         return 0;
 991 }
 992
 993 static int snd_card_harmony_create(snd_card_t *card, struct parisc_device *pa_dev, snd_card_harmony_t *harmony)
 994 {
 995         u32     cntl;
 996
 997         harmony->card = card;
 998
 999         harmony->pa_dev = pa_dev;
1000
1001         /* Set the HPA of harmony */
1002         harmony->hpa = pa_dev->hpa;
1003
1004         harmony->irq = pa_dev->irq;
1005         if (!harmony->irq) {
1006                 printk(KERN_ERR PFX "no irq found\n");
1007                 return -ENODEV;
1008         }
1009
1010         /* Grab the ID and revision from the device */
1011         harmony->id = (gsc_readl(harmony->hpa+REG_ID)&0x00ff0000) >> 16;
1012         if ((harmony->id | 1) != 0x15) {
1013                 printk(KERN_WARNING PFX "wrong harmony id 0x%02x\n", harmony->id);
1014                 return -EBUSY;
1015         }
1016         cntl = gsc_readl(harmony->hpa+REG_CNTL);
1017         harmony->rev = (cntl>>20) & 0xff;
1018
1019         printk(KERN_INFO "Lasi Harmony Audio driver h/w id %i, rev. %i at 0x%lx, IRQ %i\n",     harmony->id, harmony->rev, pa_dev->hpa, harmony->irq);
1020
1021         /* Make sure the control bit isn't set, although I don't think it
1022            ever is. */
1023         if (cntl & HARMONY_CNTL_C) {
1024                 printk(KERN_WARNING PFX "CNTL busy\n");
1025                 harmony->hpa = 0;
1026                 return -EBUSY;
1027         }
1028
1029         return 0;
1030 }
1031
1032 static int __init snd_card_harmony_probe(struct parisc_device *pa_dev)
1033 {
1034         static int dev;
1035         snd_card_harmony_t *chip;
1036         snd_card_t *card;
1037         int err;
1038
1039         if (dev >= SNDRV_CARDS)
1040                 return -ENODEV;
1041         if (!enable[dev]) {
1042                 dev++;
1043                 return -ENOENT;
1044         }
1045
1046         snd_harmony_cards[dev] = snd_card_new(index[dev], id[dev], THIS_MODULE,
1047                             sizeof(snd_card_harmony_t));
1048         card = snd_harmony_cards[dev];
1049
1050         if (card == NULL)
1051                 return -ENOMEM;
1052         chip = (struct snd_card_harmony *)card->private_data;
1053         spin_lock_init(&chip->control_lock);
1054         spin_lock_init(&chip->mixer_lock);
1055
1056         if ((err = snd_card_harmony_create(card, pa_dev, chip)) < 0) {
1057                 printk(KERN_ERR PFX "Creation failed\n");
1058                 snd_card_free(card);
1059                 return err;
1060         }
1061         if ((err = snd_card_harmony_pcm_init(chip)) < 0) {
1062                 printk(KERN_ERR PFX "PCM Init failed\n");
1063                 snd_card_free(card);
1064                 return err;
1065         }
1066         if ((err = snd_card_harmony_mixer_init(chip)) < 0) {
1067                 printk(KERN_ERR PFX "Mixer init failed\n");
1068                 snd_card_free(card);
1069                 return err;
1070         }
1071
1072         snd_harmony_proc_init(chip);
1073
1074         strcpy(card->driver, "Harmony");
1075         strcpy(card->shortname, "ALSA driver for LASI Harmony");
1076         sprintf(card->longname, "%s at h/w, id %i, rev. %i hpa 0x%lx, IRQ %i\n",card->shortname, chip->id, chip->rev, pa_dev->hpa, chip->irq);
1077
1078         if ((err = snd_card_register(card)) < 0) {
1079                 snd_card_free(card);
1080                 return err;
1081         }
1082
1083         printk(KERN_DEBUG PFX "Successfully registered harmony pcm backend & mixer %d\n", dev);
1084         dev++;
1085         return 0;
1086 }
1087
1088 static struct parisc_device_id snd_card_harmony_devicetbl[] = {
1089  { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007A }, /* Bushmaster/Flounder */
1090  { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007B }, /* 712/715 Audio */
1091  { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007E }, /* Pace Audio */
1092  { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007F }, /* Outfield / Coral II */
1093  { 0, }
1094 };
1095
1096 MODULE_DEVICE_TABLE(parisc, snd_card_harmony_devicetbl);
1097
1098 /*
1099  * bloc device parisc. c'est une structure qui definit un device
1100  * que l'on trouve sur parisc.
1101  * On y trouve les differents numeros HVERSION correspondant au device
1102  * en question (ce qui permet a l'inventory de l'identifier) et la fonction
1103  * d'initialisation du chose
1104  */
1105
1106 static struct parisc_driver snd_card_harmony_driver = {
1107         .name           = "Lasi ALSA Harmony",
1108         .id_table       = snd_card_harmony_devicetbl,
1109         .probe          = snd_card_harmony_probe,
1110 };
1111
1112 static int __init alsa_card_harmony_init(void)
1113 {
1114         int err;
1115
1116         if ((err = register_parisc_driver(&snd_card_harmony_driver)) < 0) {
1117                 printk(KERN_ERR "Harmony soundcard not found or device busy\n");
1118                 return err;
1119         }
1120
1121         return 0;
1122 }
1123
1124 static void __exit alsa_card_harmony_exit(void)
1125 {
1126         int idx;
1127         snd_card_harmony_t *harmony;
1128
1129         for (idx = 0; idx < SNDRV_CARDS; idx++)
1130         {
1131                 if (snd_harmony_cards[idx] != NULL)
1132                 {
1133                         DPRINTK(KERN_INFO PFX "Freeing card %d\n", idx);
1134                         harmony = snd_harmony_cards[idx]->private_data;
1135                         free_irq(harmony->irq, snd_card_harmony_interrupt);
1136                         printk(KERN_INFO PFX "Card unloaded %d, irq=%d\n", idx, harmony->irq);
1137                         snd_card_free(snd_harmony_cards[idx]);
1138                 }
1139         }
1140 }
1141
1142 module_init(alsa_card_harmony_init)
1143 module_exit(alsa_card_harmony_exit)