git.oblomov.eu Git - linux-2.6/blob - sound/pci/korg1212/korg1212.c

   1 /*
   2  *   Driver for the Korg 1212 IO PCI card
   3  *
   4  *      Copyright (c) 2001 Haroldo Gamal <gamal@alternex.com.br>
   5  *
   6  *   This program is free software; you can redistribute it and/or modify
   7  *   it under the terms of the GNU General Public License as published by
   8  *   the Free Software Foundation; either version 2 of the License, or
   9  *   (at your option) any later version.
  10  *
  11  *   This program is distributed in the hope that it will be useful,
  12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *   GNU General Public License for more details.
  15  *
  16  *   You should have received a copy of the GNU General Public License
  17  *   along with this program; if not, write to the Free Software
  18  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  19  *
  20  */
  21
  22 #include <sound/driver.h>
  23 #include <linux/delay.h>
  24 #include <linux/init.h>
  25 #include <linux/interrupt.h>
  26 #include <linux/pci.h>
  27 #include <linux/slab.h>
  28 #include <linux/wait.h>
  29 #include <linux/moduleparam.h>
  30 #include <linux/mutex.h>
  31
  32 #include <sound/core.h>
  33 #include <sound/info.h>
  34 #include <sound/control.h>
  35 #include <sound/pcm.h>
  36 #include <sound/pcm_params.h>
  37 #include <sound/initval.h>
  38
  39 #include <asm/io.h>
  40
  41 // ----------------------------------------------------------------------------
  42 // Debug Stuff
  43 // ----------------------------------------------------------------------------
  44 #define K1212_DEBUG_LEVEL               0
  45 #if K1212_DEBUG_LEVEL > 0
  46 #define K1212_DEBUG_PRINTK(fmt,args...) printk(KERN_DEBUG fmt,##args)
  47 #else
  48 #define K1212_DEBUG_PRINTK(fmt,...)
  49 #endif
  50 #if K1212_DEBUG_LEVEL > 1
  51 #define K1212_DEBUG_PRINTK_VERBOSE(fmt,args...) printk(KERN_DEBUG fmt,##args)
  52 #else
  53 #define K1212_DEBUG_PRINTK_VERBOSE(fmt,...)
  54 #endif
  55
  56 // ----------------------------------------------------------------------------
  57 // Record/Play Buffer Allocation Method. If K1212_LARGEALLOC is defined all
  58 // buffers are alocated as a large piece inside KorgSharedBuffer.
  59 // ----------------------------------------------------------------------------
  60 //#define K1212_LARGEALLOC              1
  61
  62 // ----------------------------------------------------------------------------
  63 // Valid states of the Korg 1212 I/O card.
  64 // ----------------------------------------------------------------------------
  65 enum CardState {
  66    K1212_STATE_NONEXISTENT,             // there is no card here
  67    K1212_STATE_UNINITIALIZED,           // the card is awaiting DSP download
  68    K1212_STATE_DSP_IN_PROCESS,          // the card is currently downloading its DSP code
  69    K1212_STATE_DSP_COMPLETE,            // the card has finished the DSP download
  70    K1212_STATE_READY,                   // the card can be opened by an application.  Any application
  71                                         //    requests prior to this state should fail.  Only an open
  72                                         //    request can be made at this state.
  73    K1212_STATE_OPEN,                    // an application has opened the card
  74    K1212_STATE_SETUP,                   // the card has been setup for play
  75    K1212_STATE_PLAYING,                 // the card is playing
  76    K1212_STATE_MONITOR,                 // the card is in the monitor mode
  77    K1212_STATE_CALIBRATING,             // the card is currently calibrating
  78    K1212_STATE_ERRORSTOP,               // the card has stopped itself because of an error and we
  79                                         //    are in the process of cleaning things up.
  80    K1212_STATE_MAX_STATE                // state values of this and beyond are invalid
  81 };
  82
  83 // ----------------------------------------------------------------------------
  84 // The following enumeration defines the constants written to the card's
  85 // host-to-card doorbell to initiate a command.
  86 // ----------------------------------------------------------------------------
  87 enum korg1212_dbcnst {
  88    K1212_DB_RequestForData        = 0,    // sent by the card to request a buffer fill.
  89    K1212_DB_TriggerPlay           = 1,    // starts playback/record on the card.
  90    K1212_DB_SelectPlayMode        = 2,    // select monitor, playback setup, or stop.
  91    K1212_DB_ConfigureBufferMemory = 3,    // tells card where the host audio buffers are.
  92    K1212_DB_RequestAdatTimecode   = 4,    // asks the card for the latest ADAT timecode value.
  93    K1212_DB_SetClockSourceRate    = 5,    // sets the clock source and rate for the card.
  94    K1212_DB_ConfigureMiscMemory   = 6,    // tells card where other buffers are.
  95    K1212_DB_TriggerFromAdat       = 7,    // tells card to trigger from Adat at a specific
  96                                           //    timecode value.
  97    K1212_DB_DMAERROR              = 0x80, // DMA Error - the PCI bus is congestioned.
  98    K1212_DB_CARDSTOPPED           = 0x81, // Card has stopped by user request.
  99    K1212_DB_RebootCard            = 0xA0, // instructs the card to reboot.
 100    K1212_DB_BootFromDSPPage4      = 0xA4, // instructs the card to boot from the DSP microcode
 101                                           //    on page 4 (local page to card).
 102    K1212_DB_DSPDownloadDone       = 0xAE, // sent by the card to indicate the download has
 103                                           //    completed.
 104    K1212_DB_StartDSPDownload      = 0xAF  // tells the card to download its DSP firmware.
 105 };
 106
 107
 108 // ----------------------------------------------------------------------------
 109 // The following enumeration defines return codes
 110 // to the Korg 1212 I/O driver.
 111 // ----------------------------------------------------------------------------
 112 enum snd_korg1212rc {
 113    K1212_CMDRET_Success         = 0,   // command was successfully placed
 114    K1212_CMDRET_DIOCFailure,           // the DeviceIoControl call failed
 115    K1212_CMDRET_PMFailure,             // the protected mode call failed
 116    K1212_CMDRET_FailUnspecified,       // unspecified failure
 117    K1212_CMDRET_FailBadState,          // the specified command can not be given in
 118                                        //    the card's current state. (or the wave device's
 119                                        //    state)
 120    K1212_CMDRET_CardUninitialized,     // the card is uninitialized and cannot be used
 121    K1212_CMDRET_BadIndex,              // an out of range card index was specified
 122    K1212_CMDRET_BadHandle,             // an invalid card handle was specified
 123    K1212_CMDRET_NoFillRoutine,         // a play request has been made before a fill routine set
 124    K1212_CMDRET_FillRoutineInUse,      // can't set a new fill routine while one is in use
 125    K1212_CMDRET_NoAckFromCard,         // the card never acknowledged a command
 126    K1212_CMDRET_BadParams,             // bad parameters were provided by the caller
 127
 128    K1212_CMDRET_BadDevice,             // the specified wave device was out of range
 129    K1212_CMDRET_BadFormat              // the specified wave format is unsupported
 130 };
 131
 132 // ----------------------------------------------------------------------------
 133 // The following enumeration defines the constants used to select the play
 134 // mode for the card in the SelectPlayMode command.
 135 // ----------------------------------------------------------------------------
 136 enum PlayModeSelector {
 137    K1212_MODE_SetupPlay  = 0x00000001,     // provides card with pre-play information
 138    K1212_MODE_MonitorOn  = 0x00000002,     // tells card to turn on monitor mode
 139    K1212_MODE_MonitorOff = 0x00000004,     // tells card to turn off monitor mode
 140    K1212_MODE_StopPlay   = 0x00000008      // stops playback on the card
 141 };
 142
 143 // ----------------------------------------------------------------------------
 144 // The following enumeration defines the constants used to select the monitor
 145 // mode for the card in the SetMonitorMode command.
 146 // ----------------------------------------------------------------------------
 147 enum MonitorModeSelector {
 148    K1212_MONMODE_Off  = 0,     // tells card to turn off monitor mode
 149    K1212_MONMODE_On            // tells card to turn on monitor mode
 150 };
 151
 152 #define MAILBOX0_OFFSET      0x40       // location of mailbox 0 relative to base address
 153 #define MAILBOX1_OFFSET      0x44       // location of mailbox 1 relative to base address
 154 #define MAILBOX2_OFFSET      0x48       // location of mailbox 2 relative to base address
 155 #define MAILBOX3_OFFSET      0x4c       // location of mailbox 3 relative to base address
 156 #define OUT_DOORBELL_OFFSET  0x60       // location of PCI to local doorbell
 157 #define IN_DOORBELL_OFFSET   0x64       // location of local to PCI doorbell
 158 #define STATUS_REG_OFFSET    0x68       // location of interrupt control/status register
 159 #define PCI_CONTROL_OFFSET   0x6c       // location of the EEPROM, PCI, User I/O, init control
 160                                         //    register
 161 #define SENS_CONTROL_OFFSET  0x6e       // location of the input sensitivity setting register.
 162                                         //    this is the upper word of the PCI control reg.
 163 #define DEV_VEND_ID_OFFSET   0x70       // location of the device and vendor ID register
 164
 165 #define COMMAND_ACK_DELAY    13        // number of RTC ticks to wait for an acknowledgement
 166                                         //    from the card after sending a command.
 167 #define INTERCOMMAND_DELAY   40
 168 #define MAX_COMMAND_RETRIES  5         // maximum number of times the driver will attempt
 169                                        //    to send a command before giving up.
 170 #define COMMAND_ACK_MASK     0x8000    // the MSB is set in the command acknowledgment from
 171                                         //    the card.
 172 #define DOORBELL_VAL_MASK    0x00FF    // the doorbell value is one byte
 173
 174 #define CARD_BOOT_DELAY_IN_MS  10
 175 #define CARD_BOOT_TIMEOUT      10
 176 #define DSP_BOOT_DELAY_IN_MS   200
 177
 178 #define kNumBuffers             8
 179 #define k1212MaxCards           4
 180 #define k1212NumWaveDevices     6
 181 #define k16BitChannels          10
 182 #define k32BitChannels          2
 183 #define kAudioChannels          (k16BitChannels + k32BitChannels)
 184 #define kPlayBufferFrames       1024
 185
 186 #define K1212_ANALOG_CHANNELS   2
 187 #define K1212_SPDIF_CHANNELS    2
 188 #define K1212_ADAT_CHANNELS     8
 189 #define K1212_CHANNELS          (K1212_ADAT_CHANNELS + K1212_ANALOG_CHANNELS)
 190 #define K1212_MIN_CHANNELS      1
 191 #define K1212_MAX_CHANNELS      K1212_CHANNELS
 192 #define K1212_FRAME_SIZE        (sizeof(struct KorgAudioFrame))
 193 #define K1212_MAX_SAMPLES       (kPlayBufferFrames*kNumBuffers)
 194 #define K1212_PERIODS           (kNumBuffers)
 195 #define K1212_PERIOD_BYTES      (K1212_FRAME_SIZE*kPlayBufferFrames)
 196 #define K1212_BUF_SIZE          (K1212_PERIOD_BYTES*kNumBuffers)
 197 #define K1212_ANALOG_BUF_SIZE   (K1212_ANALOG_CHANNELS * 2 * kPlayBufferFrames * kNumBuffers)
 198 #define K1212_SPDIF_BUF_SIZE    (K1212_SPDIF_CHANNELS * 3 * kPlayBufferFrames * kNumBuffers)
 199 #define K1212_ADAT_BUF_SIZE     (K1212_ADAT_CHANNELS * 2 * kPlayBufferFrames * kNumBuffers)
 200 #define K1212_MAX_BUF_SIZE      (K1212_ANALOG_BUF_SIZE + K1212_ADAT_BUF_SIZE)
 201
 202 #define k1212MinADCSens     0x7f
 203 #define k1212MaxADCSens     0x00
 204 #define k1212MaxVolume      0x7fff
 205 #define k1212MaxWaveVolume  0xffff
 206 #define k1212MinVolume      0x0000
 207 #define k1212MaxVolInverted 0x8000
 208
 209 // -----------------------------------------------------------------
 210 // the following bits are used for controlling interrupts in the
 211 // interrupt control/status reg
 212 // -----------------------------------------------------------------
 213 #define  PCI_INT_ENABLE_BIT               0x00000100
 214 #define  PCI_DOORBELL_INT_ENABLE_BIT      0x00000200
 215 #define  LOCAL_INT_ENABLE_BIT             0x00010000
 216 #define  LOCAL_DOORBELL_INT_ENABLE_BIT    0x00020000
 217 #define  LOCAL_DMA1_INT_ENABLE_BIT        0x00080000
 218
 219 // -----------------------------------------------------------------
 220 // the following bits are defined for the PCI command register
 221 // -----------------------------------------------------------------
 222 #define  PCI_CMD_MEM_SPACE_ENABLE_BIT     0x0002
 223 #define  PCI_CMD_IO_SPACE_ENABLE_BIT      0x0001
 224 #define  PCI_CMD_BUS_MASTER_ENABLE_BIT    0x0004
 225
 226 // -----------------------------------------------------------------
 227 // the following bits are defined for the PCI status register
 228 // -----------------------------------------------------------------
 229 #define  PCI_STAT_PARITY_ERROR_BIT        0x8000
 230 #define  PCI_STAT_SYSTEM_ERROR_BIT        0x4000
 231 #define  PCI_STAT_MASTER_ABORT_RCVD_BIT   0x2000
 232 #define  PCI_STAT_TARGET_ABORT_RCVD_BIT   0x1000
 233 #define  PCI_STAT_TARGET_ABORT_SENT_BIT   0x0800
 234
 235 // ------------------------------------------------------------------------
 236 // the following constants are used in setting the 1212 I/O card's input
 237 // sensitivity.
 238 // ------------------------------------------------------------------------
 239 #define  SET_SENS_LOCALINIT_BITPOS        15
 240 #define  SET_SENS_DATA_BITPOS             10
 241 #define  SET_SENS_CLOCK_BITPOS            8
 242 #define  SET_SENS_LOADSHIFT_BITPOS        0
 243
 244 #define  SET_SENS_LEFTCHANID              0x00
 245 #define  SET_SENS_RIGHTCHANID             0x01
 246
 247 #define  K1212SENSUPDATE_DELAY_IN_MS      50
 248
 249 // --------------------------------------------------------------------------
 250 // WaitRTCTicks
 251 //
 252 //    This function waits the specified number of real time clock ticks.
 253 //    According to the DDK, each tick is ~0.8 microseconds.
 254 //    The defines following the function declaration can be used for the
 255 //    numTicksToWait parameter.
 256 // --------------------------------------------------------------------------
 257 #define ONE_RTC_TICK         1
 258 #define SENSCLKPULSE_WIDTH   4
 259 #define LOADSHIFT_DELAY      4
 260 #define INTERCOMMAND_DELAY  40
 261 #define STOPCARD_DELAY      300        // max # RTC ticks for the card to stop once we write
 262                                        //    the command register.  (could be up to 180 us)
 263 #define COMMAND_ACK_DELAY   13         // number of RTC ticks to wait for an acknowledgement
 264                                        //    from the card after sending a command.
 265
 266 #include "korg1212-firmware.h"
 267
 268 enum ClockSourceIndex {
 269    K1212_CLKIDX_AdatAt44_1K = 0,    // selects source as ADAT at 44.1 kHz
 270    K1212_CLKIDX_AdatAt48K,          // selects source as ADAT at 48 kHz
 271    K1212_CLKIDX_WordAt44_1K,        // selects source as S/PDIF at 44.1 kHz
 272    K1212_CLKIDX_WordAt48K,          // selects source as S/PDIF at 48 kHz
 273    K1212_CLKIDX_LocalAt44_1K,       // selects source as local clock at 44.1 kHz
 274    K1212_CLKIDX_LocalAt48K,         // selects source as local clock at 48 kHz
 275    K1212_CLKIDX_Invalid             // used to check validity of the index
 276 };
 277
 278 enum ClockSourceType {
 279    K1212_CLKIDX_Adat = 0,    // selects source as ADAT
 280    K1212_CLKIDX_Word,        // selects source as S/PDIF
 281    K1212_CLKIDX_Local        // selects source as local clock
 282 };
 283
 284 struct KorgAudioFrame {
 285         u16 frameData16[k16BitChannels]; /* channels 0-9 use 16 bit samples */
 286         u32 frameData32[k32BitChannels]; /* channels 10-11 use 32 bits - only 20 are sent across S/PDIF */
 287         u32 timeCodeVal; /* holds the ADAT timecode value */
 288 };
 289
 290 struct KorgAudioBuffer {
 291         struct KorgAudioFrame  bufferData[kPlayBufferFrames];     /* buffer definition */
 292 };
 293
 294 struct KorgSharedBuffer {
 295 #ifdef K1212_LARGEALLOC
 296    struct KorgAudioBuffer   playDataBufs[kNumBuffers];
 297    struct KorgAudioBuffer   recordDataBufs[kNumBuffers];
 298 #endif
 299    short             volumeData[kAudioChannels];
 300    u32               cardCommand;
 301    u16               routeData [kAudioChannels];
 302    u32               AdatTimeCode;                 // ADAT timecode value
 303 };
 304
 305 struct SensBits {
 306    union {
 307       struct {
 308          unsigned int leftChanVal:8;
 309          unsigned int leftChanId:8;
 310       } v;
 311       u16  leftSensBits;
 312    } l;
 313    union {
 314       struct {
 315          unsigned int rightChanVal:8;
 316          unsigned int rightChanId:8;
 317       } v;
 318       u16  rightSensBits;
 319    } r;
 320 };
 321
 322 struct snd_korg1212 {
 323         struct snd_card *card;
 324         struct pci_dev *pci;
 325         struct snd_pcm *pcm;
 326         int irq;
 327
 328         spinlock_t    lock;
 329         struct mutex open_mutex;
 330
 331         struct timer_list timer;        /* timer callback for checking ack of stop request */
 332         int stop_pending_cnt;           /* counter for stop pending check */
 333
 334         wait_queue_head_t wait;
 335
 336         unsigned long iomem;
 337         unsigned long ioport;
 338         unsigned long iomem2;
 339         unsigned long irqcount;
 340         unsigned long inIRQ;
 341         void __iomem *iobase;
 342
 343         struct snd_dma_buffer dma_dsp;
 344         struct snd_dma_buffer dma_play;
 345         struct snd_dma_buffer dma_rec;
 346         struct snd_dma_buffer dma_shared;
 347
 348         u32 dspCodeSize;
 349
 350         u32 DataBufsSize;
 351
 352         struct KorgAudioBuffer  * playDataBufsPtr;
 353         struct KorgAudioBuffer  * recordDataBufsPtr;
 354
 355         struct KorgSharedBuffer * sharedBufferPtr;
 356
 357         u32 RecDataPhy;
 358         u32 PlayDataPhy;
 359         unsigned long sharedBufferPhy;
 360         u32 VolumeTablePhy;
 361         u32 RoutingTablePhy;
 362         u32 AdatTimeCodePhy;
 363
 364         u32 __iomem * statusRegPtr;          // address of the interrupt status/control register
 365         u32 __iomem * outDoorbellPtr;        // address of the host->card doorbell register
 366         u32 __iomem * inDoorbellPtr;         // address of the card->host doorbell register
 367         u32 __iomem * mailbox0Ptr;           // address of mailbox 0 on the card
 368         u32 __iomem * mailbox1Ptr;           // address of mailbox 1 on the card
 369         u32 __iomem * mailbox2Ptr;           // address of mailbox 2 on the card
 370         u32 __iomem * mailbox3Ptr;           // address of mailbox 3 on the card
 371         u32 __iomem * controlRegPtr;         // address of the EEPROM, PCI, I/O, Init ctrl reg
 372         u16 __iomem * sensRegPtr;            // address of the sensitivity setting register
 373         u32 __iomem * idRegPtr;              // address of the device and vendor ID registers
 374
 375         size_t periodsize;
 376         int channels;
 377         int currentBuffer;
 378
 379         struct snd_pcm_substream *playback_substream;
 380         struct snd_pcm_substream *capture_substream;
 381
 382         pid_t capture_pid;
 383         pid_t playback_pid;
 384
 385         enum CardState cardState;
 386         int running;
 387         int idleMonitorOn;           // indicates whether the card is in idle monitor mode.
 388         u32 cmdRetryCount;           // tracks how many times we have retried sending to the card.
 389
 390         enum ClockSourceIndex clkSrcRate; // sample rate and clock source
 391
 392         enum ClockSourceType clkSource;   // clock source
 393         int clkRate;                 // clock rate
 394
 395         int volumePhase[kAudioChannels];
 396
 397         u16 leftADCInSens;           // ADC left channel input sensitivity
 398         u16 rightADCInSens;          // ADC right channel input sensitivity
 399
 400         int opencnt;                 // Open/Close count
 401         int setcnt;                  // SetupForPlay count
 402         int playcnt;                 // TriggerPlay count
 403         int errorcnt;                // Error Count
 404         unsigned long totalerrorcnt; // Total Error Count
 405
 406         int dsp_is_loaded;
 407         int dsp_stop_is_processed;
 408
 409 };
 410
 411 MODULE_DESCRIPTION("korg1212");
 412 MODULE_LICENSE("GPL");
 413 MODULE_SUPPORTED_DEVICE("{{KORG,korg1212}}");
 414
 415 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;     /* Index 0-MAX */
 416 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;          /* ID for this card */
 417 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
 418
 419 module_param_array(index, int, NULL, 0444);
 420 MODULE_PARM_DESC(index, "Index value for Korg 1212 soundcard.");
 421 module_param_array(id, charp, NULL, 0444);
 422 MODULE_PARM_DESC(id, "ID string for Korg 1212 soundcard.");
 423 module_param_array(enable, bool, NULL, 0444);
 424 MODULE_PARM_DESC(enable, "Enable Korg 1212 soundcard.");
 425 MODULE_AUTHOR("Haroldo Gamal <gamal@alternex.com.br>");
 426
 427 static struct pci_device_id snd_korg1212_ids[] = {
 428         {
 429                 .vendor    = 0x10b5,
 430                 .device    = 0x906d,
 431                 .subvendor = PCI_ANY_ID,
 432                 .subdevice = PCI_ANY_ID,
 433         },
 434         { 0, },
 435 };
 436
 437 MODULE_DEVICE_TABLE(pci, snd_korg1212_ids);
 438
 439 static char *stateName[] = {
 440         "Non-existent",
 441         "Uninitialized",
 442         "DSP download in process",
 443         "DSP download complete",
 444         "Ready",
 445         "Open",
 446         "Setup for play",
 447         "Playing",
 448         "Monitor mode on",
 449         "Calibrating",
 450         "Invalid"
 451 };
 452
 453 static char *clockSourceTypeName[] = { "ADAT", "S/PDIF", "local" };
 454
 455 static char *clockSourceName[] = {
 456         "ADAT at 44.1 kHz",
 457         "ADAT at 48 kHz",
 458         "S/PDIF at 44.1 kHz",
 459         "S/PDIF at 48 kHz",
 460         "local clock at 44.1 kHz",
 461         "local clock at 48 kHz"
 462 };
 463
 464 static char *channelName[] = {
 465         "ADAT-1",
 466         "ADAT-2",
 467         "ADAT-3",
 468         "ADAT-4",
 469         "ADAT-5",
 470         "ADAT-6",
 471         "ADAT-7",
 472         "ADAT-8",
 473         "Analog-L",
 474         "Analog-R",
 475         "SPDIF-L",
 476         "SPDIF-R",
 477 };
 478
 479 static u16 ClockSourceSelector[] = {
 480         0x8000,   // selects source as ADAT at 44.1 kHz
 481         0x0000,   // selects source as ADAT at 48 kHz
 482         0x8001,   // selects source as S/PDIF at 44.1 kHz
 483         0x0001,   // selects source as S/PDIF at 48 kHz
 484         0x8002,   // selects source as local clock at 44.1 kHz
 485         0x0002    // selects source as local clock at 48 kHz
 486 };
 487
 488 union swap_u32 { unsigned char c[4]; u32 i; };
 489
 490 #ifdef SNDRV_BIG_ENDIAN
 491 static u32 LowerWordSwap(u32 swappee)
 492 #else
 493 static u32 UpperWordSwap(u32 swappee)
 494 #endif
 495 {
 496    union swap_u32 retVal, swapper;
 497
 498    swapper.i = swappee;
 499    retVal.c[2] = swapper.c[3];
 500    retVal.c[3] = swapper.c[2];
 501    retVal.c[1] = swapper.c[1];
 502    retVal.c[0] = swapper.c[0];
 503
 504    return retVal.i;
 505 }
 506
 507 #ifdef SNDRV_BIG_ENDIAN
 508 static u32 UpperWordSwap(u32 swappee)
 509 #else
 510 static u32 LowerWordSwap(u32 swappee)
 511 #endif
 512 {
 513    union swap_u32 retVal, swapper;
 514
 515    swapper.i = swappee;
 516    retVal.c[2] = swapper.c[2];
 517    retVal.c[3] = swapper.c[3];
 518    retVal.c[1] = swapper.c[0];
 519    retVal.c[0] = swapper.c[1];
 520
 521    return retVal.i;
 522 }
 523
 524 #define SetBitInWord(theWord,bitPosition)       (*theWord) |= (0x0001 << bitPosition)
 525 #define SetBitInDWord(theWord,bitPosition)      (*theWord) |= (0x00000001 << bitPosition)
 526 #define ClearBitInWord(theWord,bitPosition)     (*theWord) &= ~(0x0001 << bitPosition)
 527 #define ClearBitInDWord(theWord,bitPosition)    (*theWord) &= ~(0x00000001 << bitPosition)
 528
 529 static int snd_korg1212_Send1212Command(struct snd_korg1212 *korg1212,
 530                                         enum korg1212_dbcnst doorbellVal,
 531                                         u32 mailBox0Val, u32 mailBox1Val,
 532                                         u32 mailBox2Val, u32 mailBox3Val)
 533 {
 534         u32 retryCount;
 535         u16 mailBox3Lo;
 536         int rc = K1212_CMDRET_Success;
 537
 538         if (!korg1212->outDoorbellPtr) {
 539                 K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: CardUninitialized\n");
 540                 return K1212_CMDRET_CardUninitialized;
 541         }
 542
 543         K1212_DEBUG_PRINTK("K1212_DEBUG: Card <- 0x%08x 0x%08x [%s]\n",
 544                            doorbellVal, mailBox0Val, stateName[korg1212->cardState]);
 545         for (retryCount = 0; retryCount < MAX_COMMAND_RETRIES; retryCount++) {
 546                 writel(mailBox3Val, korg1212->mailbox3Ptr);
 547                 writel(mailBox2Val, korg1212->mailbox2Ptr);
 548                 writel(mailBox1Val, korg1212->mailbox1Ptr);
 549                 writel(mailBox0Val, korg1212->mailbox0Ptr);
 550                 writel(doorbellVal, korg1212->outDoorbellPtr);  // interrupt the card
 551
 552                 // --------------------------------------------------------------
 553                 // the reboot command will not give an acknowledgement.
 554                 // --------------------------------------------------------------
 555                 if ( doorbellVal == K1212_DB_RebootCard ||
 556                         doorbellVal == K1212_DB_BootFromDSPPage4 ||
 557                         doorbellVal == K1212_DB_StartDSPDownload ) {
 558                         rc = K1212_CMDRET_Success;
 559                         break;
 560                 }
 561
 562                 // --------------------------------------------------------------
 563                 // See if the card acknowledged the command.  Wait a bit, then
 564                 // read in the low word of mailbox3.  If the MSB is set and the
 565                 // low byte is equal to the doorbell value, then it ack'd.
 566                 // --------------------------------------------------------------
 567                 udelay(COMMAND_ACK_DELAY);
 568                 mailBox3Lo = readl(korg1212->mailbox3Ptr);
 569                 if (mailBox3Lo & COMMAND_ACK_MASK) {
 570                         if ((mailBox3Lo & DOORBELL_VAL_MASK) == (doorbellVal & DOORBELL_VAL_MASK)) {
 571                                 K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: Card <- Success\n");
 572                                 rc = K1212_CMDRET_Success;
 573                                 break;
 574                         }
 575                 }
 576         }
 577         korg1212->cmdRetryCount += retryCount;
 578
 579         if (retryCount >= MAX_COMMAND_RETRIES) {
 580                 K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: Card <- NoAckFromCard\n");
 581                 rc = K1212_CMDRET_NoAckFromCard;
 582         }
 583
 584         return rc;
 585 }
 586
 587 /* spinlock already held */
 588 static void snd_korg1212_SendStop(struct snd_korg1212 *korg1212)
 589 {
 590         if (! korg1212->stop_pending_cnt) {
 591                 korg1212->sharedBufferPtr->cardCommand = 0xffffffff;
 592                 /* program the timer */
 593                 korg1212->stop_pending_cnt = HZ;
 594                 korg1212->timer.expires = jiffies + 1;
 595                 add_timer(&korg1212->timer);
 596         }
 597 }
 598
 599 static void snd_korg1212_SendStopAndWait(struct snd_korg1212 *korg1212)
 600 {
 601         unsigned long flags;
 602         spin_lock_irqsave(&korg1212->lock, flags);
 603         korg1212->dsp_stop_is_processed = 0;
 604         snd_korg1212_SendStop(korg1212);
 605         spin_unlock_irqrestore(&korg1212->lock, flags);
 606         wait_event_timeout(korg1212->wait, korg1212->dsp_stop_is_processed, (HZ * 3) / 2);
 607 }
 608
 609 /* timer callback for checking the ack of stop request */
 610 static void snd_korg1212_timer_func(unsigned long data)
 611 {
 612         struct snd_korg1212 *korg1212 = (struct snd_korg1212 *) data;
 613         unsigned long flags;
 614
 615         spin_lock_irqsave(&korg1212->lock, flags);
 616         if (korg1212->sharedBufferPtr->cardCommand == 0) {
 617                 /* ack'ed */
 618                 korg1212->stop_pending_cnt = 0;
 619                 korg1212->dsp_stop_is_processed = 1;
 620                 wake_up(&korg1212->wait);
 621                 K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: Stop ack'ed [%s]\n",
 622                                            stateName[korg1212->cardState]);
 623         } else {
 624                 if (--korg1212->stop_pending_cnt > 0) {
 625                         /* reprogram timer */
 626                         korg1212->timer.expires = jiffies + 1;
 627                         add_timer(&korg1212->timer);
 628                 } else {
 629                         snd_printd("korg1212_timer_func timeout\n");
 630                         korg1212->sharedBufferPtr->cardCommand = 0;
 631                         korg1212->dsp_stop_is_processed = 1;
 632                         wake_up(&korg1212->wait);
 633                         K1212_DEBUG_PRINTK("K1212_DEBUG: Stop timeout [%s]\n",
 634                                            stateName[korg1212->cardState]);
 635                 }
 636         }
 637         spin_unlock_irqrestore(&korg1212->lock, flags);
 638 }
 639
 640 static int snd_korg1212_TurnOnIdleMonitor(struct snd_korg1212 *korg1212)
 641 {
 642         unsigned long flags;
 643         int rc;
 644
 645         udelay(INTERCOMMAND_DELAY);
 646         spin_lock_irqsave(&korg1212->lock, flags);
 647         korg1212->idleMonitorOn = 1;
 648         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SelectPlayMode,
 649                                           K1212_MODE_MonitorOn, 0, 0, 0);
 650         spin_unlock_irqrestore(&korg1212->lock, flags);
 651         return rc;
 652 }
 653
 654 static void snd_korg1212_TurnOffIdleMonitor(struct snd_korg1212 *korg1212)
 655 {
 656         if (korg1212->idleMonitorOn) {
 657                 snd_korg1212_SendStopAndWait(korg1212);
 658                 korg1212->idleMonitorOn = 0;
 659         }
 660 }
 661
 662 static inline void snd_korg1212_setCardState(struct snd_korg1212 * korg1212, enum CardState csState)
 663 {
 664         korg1212->cardState = csState;
 665 }
 666
 667 static int snd_korg1212_OpenCard(struct snd_korg1212 * korg1212)
 668 {
 669         K1212_DEBUG_PRINTK("K1212_DEBUG: OpenCard [%s] %d\n",
 670                            stateName[korg1212->cardState], korg1212->opencnt);
 671         mutex_lock(&korg1212->open_mutex);
 672         if (korg1212->opencnt++ == 0) {
 673                 snd_korg1212_TurnOffIdleMonitor(korg1212);
 674                 snd_korg1212_setCardState(korg1212, K1212_STATE_OPEN);
 675         }
 676
 677         mutex_unlock(&korg1212->open_mutex);
 678         return 1;
 679 }
 680
 681 static int snd_korg1212_CloseCard(struct snd_korg1212 * korg1212)
 682 {
 683         K1212_DEBUG_PRINTK("K1212_DEBUG: CloseCard [%s] %d\n",
 684                            stateName[korg1212->cardState], korg1212->opencnt);
 685
 686         mutex_lock(&korg1212->open_mutex);
 687         if (--(korg1212->opencnt)) {
 688                 mutex_unlock(&korg1212->open_mutex);
 689                 return 0;
 690         }
 691
 692         if (korg1212->cardState == K1212_STATE_SETUP) {
 693                 int rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SelectPlayMode,
 694                                 K1212_MODE_StopPlay, 0, 0, 0);
 695                 if (rc)
 696                         K1212_DEBUG_PRINTK("K1212_DEBUG: CloseCard - RC = %d [%s]\n",
 697                                            rc, stateName[korg1212->cardState]);
 698                 if (rc != K1212_CMDRET_Success) {
 699                         mutex_unlock(&korg1212->open_mutex);
 700                         return 0;
 701                 }
 702         } else if (korg1212->cardState > K1212_STATE_SETUP) {
 703                 snd_korg1212_SendStopAndWait(korg1212);
 704         }
 705
 706         if (korg1212->cardState > K1212_STATE_READY) {
 707                 snd_korg1212_TurnOnIdleMonitor(korg1212);
 708                 snd_korg1212_setCardState(korg1212, K1212_STATE_READY);
 709         }
 710
 711         mutex_unlock(&korg1212->open_mutex);
 712         return 0;
 713 }
 714
 715 /* spinlock already held */
 716 static int snd_korg1212_SetupForPlay(struct snd_korg1212 * korg1212)
 717 {
 718         int rc;
 719
 720         K1212_DEBUG_PRINTK("K1212_DEBUG: SetupForPlay [%s] %d\n",
 721                            stateName[korg1212->cardState], korg1212->setcnt);
 722
 723         if (korg1212->setcnt++)
 724                 return 0;
 725
 726         snd_korg1212_setCardState(korg1212, K1212_STATE_SETUP);
 727         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SelectPlayMode,
 728                                         K1212_MODE_SetupPlay, 0, 0, 0);
 729         if (rc)
 730                 K1212_DEBUG_PRINTK("K1212_DEBUG: SetupForPlay - RC = %d [%s]\n",
 731                                    rc, stateName[korg1212->cardState]);
 732         if (rc != K1212_CMDRET_Success) {
 733                 return 1;
 734         }
 735         return 0;
 736 }
 737
 738 /* spinlock already held */
 739 static int snd_korg1212_TriggerPlay(struct snd_korg1212 * korg1212)
 740 {
 741         int rc;
 742
 743         K1212_DEBUG_PRINTK("K1212_DEBUG: TriggerPlay [%s] %d\n",
 744                            stateName[korg1212->cardState], korg1212->playcnt);
 745
 746         if (korg1212->playcnt++)
 747                 return 0;
 748
 749         snd_korg1212_setCardState(korg1212, K1212_STATE_PLAYING);
 750         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_TriggerPlay, 0, 0, 0, 0);
 751         if (rc)
 752                 K1212_DEBUG_PRINTK("K1212_DEBUG: TriggerPlay - RC = %d [%s]\n",
 753                                    rc, stateName[korg1212->cardState]);
 754         if (rc != K1212_CMDRET_Success) {
 755                 return 1;
 756         }
 757         return 0;
 758 }
 759
 760 /* spinlock already held */
 761 static int snd_korg1212_StopPlay(struct snd_korg1212 * korg1212)
 762 {
 763         K1212_DEBUG_PRINTK("K1212_DEBUG: StopPlay [%s] %d\n",
 764                            stateName[korg1212->cardState], korg1212->playcnt);
 765
 766         if (--(korg1212->playcnt))
 767                 return 0;
 768
 769         korg1212->setcnt = 0;
 770
 771         if (korg1212->cardState != K1212_STATE_ERRORSTOP)
 772                 snd_korg1212_SendStop(korg1212);
 773
 774         snd_korg1212_setCardState(korg1212, K1212_STATE_OPEN);
 775         return 0;
 776 }
 777
 778 static void snd_korg1212_EnableCardInterrupts(struct snd_korg1212 * korg1212)
 779 {
 780         writel(PCI_INT_ENABLE_BIT            |
 781                PCI_DOORBELL_INT_ENABLE_BIT   |
 782                LOCAL_INT_ENABLE_BIT          |
 783                LOCAL_DOORBELL_INT_ENABLE_BIT |
 784                LOCAL_DMA1_INT_ENABLE_BIT,
 785                korg1212->statusRegPtr);
 786 }
 787
 788 #if 0 /* not used */
 789
 790 static int snd_korg1212_SetMonitorMode(struct snd_korg1212 *korg1212,
 791                                        enum MonitorModeSelector mode)
 792 {
 793         K1212_DEBUG_PRINTK("K1212_DEBUG: SetMonitorMode [%s]\n",
 794                            stateName[korg1212->cardState]);
 795
 796         switch (mode) {
 797         case K1212_MONMODE_Off:
 798                 if (korg1212->cardState != K1212_STATE_MONITOR)
 799                         return 0;
 800                 else {
 801                         snd_korg1212_SendStopAndWait(korg1212);
 802                         snd_korg1212_setCardState(korg1212, K1212_STATE_OPEN);
 803                 }
 804                 break;
 805
 806         case K1212_MONMODE_On:
 807                 if (korg1212->cardState != K1212_STATE_OPEN)
 808                         return 0;
 809                 else {
 810                         int rc;
 811                         snd_korg1212_setCardState(korg1212, K1212_STATE_MONITOR);
 812                         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SelectPlayMode,
 813                                                           K1212_MODE_MonitorOn, 0, 0, 0);
 814                         if (rc != K1212_CMDRET_Success)
 815                                 return 0;
 816                 }
 817                 break;
 818
 819         default:
 820                 return 0;
 821         }
 822
 823         return 1;
 824 }
 825
 826 #endif /* not used */
 827
 828 static inline int snd_korg1212_use_is_exclusive(struct snd_korg1212 *korg1212)
 829 {
 830         if (korg1212->playback_pid != korg1212->capture_pid &&
 831             korg1212->playback_pid >= 0 && korg1212->capture_pid >= 0)
 832                 return 0;
 833
 834         return 1;
 835 }
 836
 837 static int snd_korg1212_SetRate(struct snd_korg1212 *korg1212, int rate)
 838 {
 839         static enum ClockSourceIndex s44[] = {
 840                 K1212_CLKIDX_AdatAt44_1K,
 841                 K1212_CLKIDX_WordAt44_1K,
 842                 K1212_CLKIDX_LocalAt44_1K
 843         };
 844         static enum ClockSourceIndex s48[] = {
 845                 K1212_CLKIDX_AdatAt48K,
 846                 K1212_CLKIDX_WordAt48K,
 847                 K1212_CLKIDX_LocalAt48K
 848         };
 849         int parm, rc;
 850
 851         if (!snd_korg1212_use_is_exclusive (korg1212))
 852                 return -EBUSY;
 853
 854         switch (rate) {
 855         case 44100:
 856                 parm = s44[korg1212->clkSource];
 857                 break;
 858
 859         case 48000:
 860                 parm = s48[korg1212->clkSource];
 861                 break;
 862
 863         default:
 864                 return -EINVAL;
 865         }
 866
 867         korg1212->clkSrcRate = parm;
 868         korg1212->clkRate = rate;
 869
 870         udelay(INTERCOMMAND_DELAY);
 871         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SetClockSourceRate,
 872                                           ClockSourceSelector[korg1212->clkSrcRate],
 873                                           0, 0, 0);
 874         if (rc)
 875                 K1212_DEBUG_PRINTK("K1212_DEBUG: Set Clock Source Selector - RC = %d [%s]\n",
 876                                    rc, stateName[korg1212->cardState]);
 877
 878         return 0;
 879 }
 880
 881 static int snd_korg1212_SetClockSource(struct snd_korg1212 *korg1212, int source)
 882 {
 883
 884         if (source < 0 || source > 2)
 885                 return -EINVAL;
 886
 887         korg1212->clkSource = source;
 888
 889         snd_korg1212_SetRate(korg1212, korg1212->clkRate);
 890
 891         return 0;
 892 }
 893
 894 static void snd_korg1212_DisableCardInterrupts(struct snd_korg1212 *korg1212)
 895 {
 896         writel(0, korg1212->statusRegPtr);
 897 }
 898
 899 static int snd_korg1212_WriteADCSensitivity(struct snd_korg1212 *korg1212)
 900 {
 901         struct SensBits  sensVals;
 902         int       bitPosition;
 903         int       channel;
 904         int       clkIs48K;
 905         int       monModeSet;
 906         u16       controlValue;    // this keeps the current value to be written to
 907                                    //  the card's eeprom control register.
 908         u16       count;
 909         unsigned long flags;
 910
 911         K1212_DEBUG_PRINTK("K1212_DEBUG: WriteADCSensivity [%s]\n",
 912                            stateName[korg1212->cardState]);
 913
 914         // ----------------------------------------------------------------------------
 915         // initialize things.  The local init bit is always set when writing to the
 916         // card's control register.
 917         // ----------------------------------------------------------------------------
 918         controlValue = 0;
 919         SetBitInWord(&controlValue, SET_SENS_LOCALINIT_BITPOS);    // init the control value
 920
 921         // ----------------------------------------------------------------------------
 922         // make sure the card is not in monitor mode when we do this update.
 923         // ----------------------------------------------------------------------------
 924         if (korg1212->cardState == K1212_STATE_MONITOR || korg1212->idleMonitorOn) {
 925                 monModeSet = 1;
 926                 snd_korg1212_SendStopAndWait(korg1212);
 927         } else
 928                 monModeSet = 0;
 929
 930         spin_lock_irqsave(&korg1212->lock, flags);
 931
 932         // ----------------------------------------------------------------------------
 933         // we are about to send new values to the card, so clear the new values queued
 934         // flag.  Also, clear out mailbox 3, so we don't lockup.
 935         // ----------------------------------------------------------------------------
 936         writel(0, korg1212->mailbox3Ptr);
 937         udelay(LOADSHIFT_DELAY);
 938
 939         // ----------------------------------------------------------------------------
 940         // determine whether we are running a 48K or 44.1K clock.  This info is used
 941         // later when setting the SPDIF FF after the volume has been shifted in.
 942         // ----------------------------------------------------------------------------
 943         switch (korg1212->clkSrcRate) {
 944                 case K1212_CLKIDX_AdatAt44_1K:
 945                 case K1212_CLKIDX_WordAt44_1K:
 946                 case K1212_CLKIDX_LocalAt44_1K:
 947                         clkIs48K = 0;
 948                         break;
 949
 950                 case K1212_CLKIDX_WordAt48K:
 951                 case K1212_CLKIDX_AdatAt48K:
 952                 case K1212_CLKIDX_LocalAt48K:
 953                 default:
 954                         clkIs48K = 1;
 955                         break;
 956         }
 957
 958         // ----------------------------------------------------------------------------
 959         // start the update.  Setup the bit structure and then shift the bits.
 960         // ----------------------------------------------------------------------------
 961         sensVals.l.v.leftChanId   = SET_SENS_LEFTCHANID;
 962         sensVals.r.v.rightChanId  = SET_SENS_RIGHTCHANID;
 963         sensVals.l.v.leftChanVal  = korg1212->leftADCInSens;
 964         sensVals.r.v.rightChanVal = korg1212->rightADCInSens;
 965
 966         // ----------------------------------------------------------------------------
 967         // now start shifting the bits in.  Start with the left channel then the right.
 968         // ----------------------------------------------------------------------------
 969         for (channel = 0; channel < 2; channel++) {
 970
 971                 // ----------------------------------------------------------------------------
 972                 // Bring the load/shift line low, then wait - the spec says >150ns from load/
 973                 // shift low to the first rising edge of the clock.
 974                 // ----------------------------------------------------------------------------
 975                 ClearBitInWord(&controlValue, SET_SENS_LOADSHIFT_BITPOS);
 976                 ClearBitInWord(&controlValue, SET_SENS_DATA_BITPOS);
 977                 writew(controlValue, korg1212->sensRegPtr);                          // load/shift goes low
 978                 udelay(LOADSHIFT_DELAY);
 979
 980                 for (bitPosition = 15; bitPosition >= 0; bitPosition--) {       // for all the bits
 981                         if (channel == 0) {
 982                                 if (sensVals.l.leftSensBits & (0x0001 << bitPosition))
 983                                         SetBitInWord(&controlValue, SET_SENS_DATA_BITPOS);     // data bit set high
 984                                 else
 985                                         ClearBitInWord(&controlValue, SET_SENS_DATA_BITPOS);   // data bit set low
 986                         } else {
 987                                 if (sensVals.r.rightSensBits & (0x0001 << bitPosition))
 988                                         SetBitInWord(&controlValue, SET_SENS_DATA_BITPOS);     // data bit set high
 989                                 else
 990                                         ClearBitInWord(&controlValue, SET_SENS_DATA_BITPOS);   // data bit set low
 991                         }
 992
 993                         ClearBitInWord(&controlValue, SET_SENS_CLOCK_BITPOS);
 994                         writew(controlValue, korg1212->sensRegPtr);                       // clock goes low
 995                         udelay(SENSCLKPULSE_WIDTH);
 996                         SetBitInWord(&controlValue, SET_SENS_CLOCK_BITPOS);
 997                         writew(controlValue, korg1212->sensRegPtr);                       // clock goes high
 998                         udelay(SENSCLKPULSE_WIDTH);
 999                 }
1000
1001                 // ----------------------------------------------------------------------------
1002                 // finish up SPDIF for left.  Bring the load/shift line high, then write a one
1003                 // bit if the clock rate is 48K otherwise write 0.
1004                 // ----------------------------------------------------------------------------
1005                 ClearBitInWord(&controlValue, SET_SENS_DATA_BITPOS);
1006                 ClearBitInWord(&controlValue, SET_SENS_CLOCK_BITPOS);
1007                 SetBitInWord(&controlValue, SET_SENS_LOADSHIFT_BITPOS);
1008                 writew(controlValue, korg1212->sensRegPtr);                   // load shift goes high - clk low
1009                 udelay(SENSCLKPULSE_WIDTH);
1010
1011                 if (clkIs48K)
1012                         SetBitInWord(&controlValue, SET_SENS_DATA_BITPOS);
1013
1014                 writew(controlValue, korg1212->sensRegPtr);                   // set/clear data bit
1015                 udelay(ONE_RTC_TICK);
1016                 SetBitInWord(&controlValue, SET_SENS_CLOCK_BITPOS);
1017                 writew(controlValue, korg1212->sensRegPtr);                   // clock goes high
1018                 udelay(SENSCLKPULSE_WIDTH);
1019                 ClearBitInWord(&controlValue, SET_SENS_CLOCK_BITPOS);
1020                 writew(controlValue, korg1212->sensRegPtr);                   // clock goes low
1021                 udelay(SENSCLKPULSE_WIDTH);
1022         }
1023
1024         // ----------------------------------------------------------------------------
1025         // The update is complete.  Set a timeout.  This is the inter-update delay.
1026         // Also, if the card was in monitor mode, restore it.
1027         // ----------------------------------------------------------------------------
1028         for (count = 0; count < 10; count++)
1029                 udelay(SENSCLKPULSE_WIDTH);
1030
1031         if (monModeSet) {
1032                 int rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SelectPlayMode,
1033                                 K1212_MODE_MonitorOn, 0, 0, 0);
1034                 if (rc)
1035                         K1212_DEBUG_PRINTK("K1212_DEBUG: WriteADCSensivity - RC = %d [%s]\n",
1036                                            rc, stateName[korg1212->cardState]);
1037         }
1038
1039         spin_unlock_irqrestore(&korg1212->lock, flags);
1040
1041         return 1;
1042 }
1043
1044 static void snd_korg1212_OnDSPDownloadComplete(struct snd_korg1212 *korg1212)
1045 {
1046         int channel, rc;
1047
1048         K1212_DEBUG_PRINTK("K1212_DEBUG: DSP download is complete. [%s]\n",
1049                            stateName[korg1212->cardState]);
1050
1051         // ----------------------------------------------------
1052         // tell the card to boot
1053         // ----------------------------------------------------
1054         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_BootFromDSPPage4, 0, 0, 0, 0);
1055
1056         if (rc)
1057                 K1212_DEBUG_PRINTK("K1212_DEBUG: Boot from Page 4 - RC = %d [%s]\n",
1058                                    rc, stateName[korg1212->cardState]);
1059         msleep(DSP_BOOT_DELAY_IN_MS);
1060
1061         // --------------------------------------------------------------------------------
1062         // Let the card know where all the buffers are.
1063         // --------------------------------------------------------------------------------
1064         rc = snd_korg1212_Send1212Command(korg1212,
1065                         K1212_DB_ConfigureBufferMemory,
1066                         LowerWordSwap(korg1212->PlayDataPhy),
1067                         LowerWordSwap(korg1212->RecDataPhy),
1068                         ((kNumBuffers * kPlayBufferFrames) / 2),   // size given to the card
1069                                                                    // is based on 2 buffers
1070                         0
1071         );
1072
1073         if (rc)
1074                 K1212_DEBUG_PRINTK("K1212_DEBUG: Configure Buffer Memory - RC = %d [%s]\n",
1075                                    rc, stateName[korg1212->cardState]);
1076
1077         udelay(INTERCOMMAND_DELAY);
1078
1079         rc = snd_korg1212_Send1212Command(korg1212,
1080                         K1212_DB_ConfigureMiscMemory,
1081                         LowerWordSwap(korg1212->VolumeTablePhy),
1082                         LowerWordSwap(korg1212->RoutingTablePhy),
1083                         LowerWordSwap(korg1212->AdatTimeCodePhy),
1084                         0
1085         );
1086
1087         if (rc)
1088                 K1212_DEBUG_PRINTK("K1212_DEBUG: Configure Misc Memory - RC = %d [%s]\n",
1089                                    rc, stateName[korg1212->cardState]);
1090
1091         // --------------------------------------------------------------------------------
1092         // Initialize the routing and volume tables, then update the card's state.
1093         // --------------------------------------------------------------------------------
1094         udelay(INTERCOMMAND_DELAY);
1095
1096         for (channel = 0; channel < kAudioChannels; channel++) {
1097                 korg1212->sharedBufferPtr->volumeData[channel] = k1212MaxVolume;
1098                 //korg1212->sharedBufferPtr->routeData[channel] = channel;
1099                 korg1212->sharedBufferPtr->routeData[channel] = 8 + (channel & 1);
1100         }
1101
1102         snd_korg1212_WriteADCSensitivity(korg1212);
1103
1104         udelay(INTERCOMMAND_DELAY);
1105         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SetClockSourceRate,
1106                                           ClockSourceSelector[korg1212->clkSrcRate],
1107                                           0, 0, 0);
1108         if (rc)
1109                 K1212_DEBUG_PRINTK("K1212_DEBUG: Set Clock Source Selector - RC = %d [%s]\n",
1110                                    rc, stateName[korg1212->cardState]);
1111
1112         rc = snd_korg1212_TurnOnIdleMonitor(korg1212);
1113         snd_korg1212_setCardState(korg1212, K1212_STATE_READY);
1114
1115         if (rc)
1116                 K1212_DEBUG_PRINTK("K1212_DEBUG: Set Monitor On - RC = %d [%s]\n",
1117                                    rc, stateName[korg1212->cardState]);
1118
1119         snd_korg1212_setCardState(korg1212, K1212_STATE_DSP_COMPLETE);
1120 }
1121
1122 static irqreturn_t snd_korg1212_interrupt(int irq, void *dev_id, struct pt_regs *regs)
1123 {
1124         u32 doorbellValue;
1125         struct snd_korg1212 *korg1212 = dev_id;
1126
1127         if(irq != korg1212->irq)
1128                 return IRQ_NONE;
1129
1130         doorbellValue = readl(korg1212->inDoorbellPtr);
1131
1132         if (!doorbellValue)
1133                 return IRQ_NONE;
1134
1135         spin_lock(&korg1212->lock);
1136
1137         writel(doorbellValue, korg1212->inDoorbellPtr);
1138
1139         korg1212->irqcount++;
1140
1141         korg1212->inIRQ++;
1142
1143
1144         switch (doorbellValue) {
1145                 case K1212_DB_DSPDownloadDone:
1146                         K1212_DEBUG_PRINTK("K1212_DEBUG: IRQ DNLD count - %ld, %x, [%s].\n",
1147                                            korg1212->irqcount, doorbellValue,
1148                                            stateName[korg1212->cardState]);
1149                         if (korg1212->cardState == K1212_STATE_DSP_IN_PROCESS) {
1150                                 korg1212->dsp_is_loaded = 1;
1151                                 wake_up(&korg1212->wait);
1152                         }
1153                         break;
1154
1155                 // ------------------------------------------------------------------------
1156                 // an error occurred - stop the card
1157                 // ------------------------------------------------------------------------
1158                 case K1212_DB_DMAERROR:
1159                         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: IRQ DMAE count - %ld, %x, [%s].\n",
1160                                                    korg1212->irqcount, doorbellValue,
1161                                                    stateName[korg1212->cardState]);
1162                         snd_printk(KERN_ERR "korg1212: DMA Error\n");
1163                         korg1212->errorcnt++;
1164                         korg1212->totalerrorcnt++;
1165                         korg1212->sharedBufferPtr->cardCommand = 0;
1166                         snd_korg1212_setCardState(korg1212, K1212_STATE_ERRORSTOP);
1167                         break;
1168
1169                 // ------------------------------------------------------------------------
1170                 // the card has stopped by our request.  Clear the command word and signal
1171                 // the semaphore in case someone is waiting for this.
1172                 // ------------------------------------------------------------------------
1173                 case K1212_DB_CARDSTOPPED:
1174                         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: IRQ CSTP count - %ld, %x, [%s].\n",
1175                                                    korg1212->irqcount, doorbellValue,
1176                                                    stateName[korg1212->cardState]);
1177                         korg1212->sharedBufferPtr->cardCommand = 0;
1178                         break;
1179
1180                 default:
1181                         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: IRQ DFLT count - %ld, %x, cpos=%d [%s].\n",
1182                                korg1212->irqcount, doorbellValue,
1183                                korg1212->currentBuffer, stateName[korg1212->cardState]);
1184                         if ((korg1212->cardState > K1212_STATE_SETUP) || korg1212->idleMonitorOn) {
1185                                 korg1212->currentBuffer++;
1186
1187                                 if (korg1212->currentBuffer >= kNumBuffers)
1188                                         korg1212->currentBuffer = 0;
1189
1190                                 if (!korg1212->running)
1191                                         break;
1192
1193                                 if (korg1212->capture_substream) {
1194                                         spin_unlock(&korg1212->lock);
1195                                         snd_pcm_period_elapsed(korg1212->capture_substream);
1196                                         spin_lock(&korg1212->lock);
1197                                 }
1198
1199                                 if (korg1212->playback_substream) {
1200                                         spin_unlock(&korg1212->lock);
1201                                         snd_pcm_period_elapsed(korg1212->playback_substream);
1202                                         spin_lock(&korg1212->lock);
1203                                 }
1204                         }
1205                         break;
1206         }
1207
1208         korg1212->inIRQ--;
1209
1210         spin_unlock(&korg1212->lock);
1211
1212         return IRQ_HANDLED;
1213 }
1214
1215 static int snd_korg1212_downloadDSPCode(struct snd_korg1212 *korg1212)
1216 {
1217         int rc;
1218
1219         K1212_DEBUG_PRINTK("K1212_DEBUG: DSP download is starting... [%s]\n",
1220                            stateName[korg1212->cardState]);
1221
1222         // ---------------------------------------------------------------
1223         // verify the state of the card before proceeding.
1224         // ---------------------------------------------------------------
1225         if (korg1212->cardState >= K1212_STATE_DSP_IN_PROCESS)
1226                 return 1;
1227
1228         snd_korg1212_setCardState(korg1212, K1212_STATE_DSP_IN_PROCESS);
1229
1230         memcpy(korg1212->dma_dsp.area, dspCode, korg1212->dspCodeSize);
1231
1232         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_StartDSPDownload,
1233                                      UpperWordSwap(korg1212->dma_dsp.addr),
1234                                      0, 0, 0);
1235         if (rc)
1236                 K1212_DEBUG_PRINTK("K1212_DEBUG: Start DSP Download RC = %d [%s]\n",
1237                                    rc, stateName[korg1212->cardState]);
1238
1239         korg1212->dsp_is_loaded = 0;
1240         wait_event_timeout(korg1212->wait, korg1212->dsp_is_loaded, HZ * CARD_BOOT_TIMEOUT);
1241         if (! korg1212->dsp_is_loaded )
1242                 return -EBUSY; /* timeout */
1243
1244         snd_korg1212_OnDSPDownloadComplete(korg1212);
1245
1246         return 0;
1247 }
1248
1249 static struct snd_pcm_hardware snd_korg1212_playback_info =
1250 {
1251         .info =              (SNDRV_PCM_INFO_MMAP |
1252                               SNDRV_PCM_INFO_MMAP_VALID |
1253                               SNDRV_PCM_INFO_INTERLEAVED),
1254         .formats =            SNDRV_PCM_FMTBIT_S16_LE,
1255         .rates =              (SNDRV_PCM_RATE_44100 |
1256                               SNDRV_PCM_RATE_48000),
1257         .rate_min =           44100,
1258         .rate_max =           48000,
1259         .channels_min =       K1212_MIN_CHANNELS,
1260         .channels_max =       K1212_MAX_CHANNELS,
1261         .buffer_bytes_max =   K1212_MAX_BUF_SIZE,
1262         .period_bytes_min =   K1212_MIN_CHANNELS * 2 * kPlayBufferFrames,
1263         .period_bytes_max =   K1212_MAX_CHANNELS * 2 * kPlayBufferFrames,
1264         .periods_min =        K1212_PERIODS,
1265         .periods_max =        K1212_PERIODS,
1266         .fifo_size =          0,
1267 };
1268
1269 static struct snd_pcm_hardware snd_korg1212_capture_info =
1270 {
1271         .info =              (SNDRV_PCM_INFO_MMAP |
1272                               SNDRV_PCM_INFO_MMAP_VALID |
1273                               SNDRV_PCM_INFO_INTERLEAVED),
1274         .formats =            SNDRV_PCM_FMTBIT_S16_LE,
1275         .rates =              (SNDRV_PCM_RATE_44100 |
1276                               SNDRV_PCM_RATE_48000),
1277         .rate_min =           44100,
1278         .rate_max =           48000,
1279         .channels_min =       K1212_MIN_CHANNELS,
1280         .channels_max =       K1212_MAX_CHANNELS,
1281         .buffer_bytes_max =   K1212_MAX_BUF_SIZE,
1282         .period_bytes_min =   K1212_MIN_CHANNELS * 2 * kPlayBufferFrames,
1283         .period_bytes_max =   K1212_MAX_CHANNELS * 2 * kPlayBufferFrames,
1284         .periods_min =        K1212_PERIODS,
1285         .periods_max =        K1212_PERIODS,
1286         .fifo_size =          0,
1287 };
1288
1289 static int snd_korg1212_silence(struct snd_korg1212 *korg1212, int pos, int count, int offset, int size)
1290 {
1291         struct KorgAudioFrame * dst =  korg1212->playDataBufsPtr[0].bufferData + pos;
1292         int i;
1293
1294         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_silence pos=%d offset=%d size=%d count=%d\n",
1295                                    pos, offset, size, count);
1296         snd_assert(pos + count <= K1212_MAX_SAMPLES, return -EINVAL);
1297
1298         for (i=0; i < count; i++) {
1299 #if K1212_DEBUG_LEVEL > 0
1300                 if ( (void *) dst < (void *) korg1212->playDataBufsPtr ||
1301                      (void *) dst > (void *) korg1212->playDataBufsPtr[8].bufferData ) {
1302                         printk(KERN_DEBUG "K1212_DEBUG: snd_korg1212_silence KERNEL EFAULT dst=%p iter=%d\n",
1303                                dst, i);
1304                         return -EFAULT;
1305                 }
1306 #endif
1307                 memset((void*) dst + offset, 0, size);
1308                 dst++;
1309         }
1310
1311         return 0;
1312 }
1313
1314 static int snd_korg1212_copy_to(struct snd_korg1212 *korg1212, void __user *dst, int pos, int count, int offset, int size)
1315 {
1316         struct KorgAudioFrame * src =  korg1212->recordDataBufsPtr[0].bufferData + pos;
1317         int i, rc;
1318
1319         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_copy_to pos=%d offset=%d size=%d\n",
1320                                    pos, offset, size);
1321         snd_assert(pos + count <= K1212_MAX_SAMPLES, return -EINVAL);
1322
1323         for (i=0; i < count; i++) {
1324 #if K1212_DEBUG_LEVEL > 0
1325                 if ( (void *) src < (void *) korg1212->recordDataBufsPtr ||
1326                      (void *) src > (void *) korg1212->recordDataBufsPtr[8].bufferData ) {
1327                         printk(KERN_DEBUG "K1212_DEBUG: snd_korg1212_copy_to KERNEL EFAULT, src=%p dst=%p iter=%d\n", src, dst, i);
1328                         return -EFAULT;
1329                 }
1330 #endif
1331                 rc = copy_to_user(dst + offset, src, size);
1332                 if (rc) {
1333                         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_copy_to USER EFAULT src=%p dst=%p iter=%d\n", src, dst, i);
1334                         return -EFAULT;
1335                 }
1336                 src++;
1337                 dst += size;
1338         }
1339
1340         return 0;
1341 }
1342
1343 static int snd_korg1212_copy_from(struct snd_korg1212 *korg1212, void __user *src, int pos, int count, int offset, int size)
1344 {
1345         struct KorgAudioFrame * dst =  korg1212->playDataBufsPtr[0].bufferData + pos;
1346         int i, rc;
1347
1348         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_copy_from pos=%d offset=%d size=%d count=%d\n",
1349                                    pos, offset, size, count);
1350
1351         snd_assert(pos + count <= K1212_MAX_SAMPLES, return -EINVAL);
1352
1353         for (i=0; i < count; i++) {
1354 #if K1212_DEBUG_LEVEL > 0
1355                 if ( (void *) dst < (void *) korg1212->playDataBufsPtr ||
1356                      (void *) dst > (void *) korg1212->playDataBufsPtr[8].bufferData ) {
1357                         printk(KERN_DEBUG "K1212_DEBUG: snd_korg1212_copy_from KERNEL EFAULT, src=%p dst=%p iter=%d\n", src, dst, i);
1358                         return -EFAULT;
1359                 }
1360 #endif
1361                 rc = copy_from_user((void*) dst + offset, src, size);
1362                 if (rc) {
1363                         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_copy_from USER EFAULT src=%p dst=%p iter=%d\n", src, dst, i);
1364                         return -EFAULT;
1365                 }
1366                 dst++;
1367                 src += size;
1368         }
1369
1370         return 0;
1371 }
1372
1373 static void snd_korg1212_free_pcm(struct snd_pcm *pcm)
1374 {
1375         struct snd_korg1212 *korg1212 = pcm->private_data;
1376
1377         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_free_pcm [%s]\n",
1378                            stateName[korg1212->cardState]);
1379
1380         korg1212->pcm = NULL;
1381 }
1382
1383 static int snd_korg1212_playback_open(struct snd_pcm_substream *substream)
1384 {
1385         unsigned long flags;
1386         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1387         struct snd_pcm_runtime *runtime = substream->runtime;
1388
1389         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_playback_open [%s]\n",
1390                            stateName[korg1212->cardState]);
1391
1392         snd_pcm_set_sync(substream);    // ???
1393
1394         snd_korg1212_OpenCard(korg1212);
1395
1396         runtime->hw = snd_korg1212_playback_info;
1397         snd_pcm_set_runtime_buffer(substream, &korg1212->dma_play);
1398
1399         spin_lock_irqsave(&korg1212->lock, flags);
1400
1401         korg1212->playback_substream = substream;
1402         korg1212->playback_pid = current->pid;
1403         korg1212->periodsize = K1212_PERIODS;
1404         korg1212->channels = K1212_CHANNELS;
1405         korg1212->errorcnt = 0;
1406
1407         spin_unlock_irqrestore(&korg1212->lock, flags);
1408
1409         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, kPlayBufferFrames, kPlayBufferFrames);
1410         return 0;
1411 }
1412
1413
1414 static int snd_korg1212_capture_open(struct snd_pcm_substream *substream)
1415 {
1416         unsigned long flags;
1417         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1418         struct snd_pcm_runtime *runtime = substream->runtime;
1419
1420         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_capture_open [%s]\n",
1421                            stateName[korg1212->cardState]);
1422
1423         snd_pcm_set_sync(substream);
1424
1425         snd_korg1212_OpenCard(korg1212);
1426
1427         runtime->hw = snd_korg1212_capture_info;
1428         snd_pcm_set_runtime_buffer(substream, &korg1212->dma_rec);
1429
1430         spin_lock_irqsave(&korg1212->lock, flags);
1431
1432         korg1212->capture_substream = substream;
1433         korg1212->capture_pid = current->pid;
1434         korg1212->periodsize = K1212_PERIODS;
1435         korg1212->channels = K1212_CHANNELS;
1436
1437         spin_unlock_irqrestore(&korg1212->lock, flags);
1438
1439         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
1440                                      kPlayBufferFrames, kPlayBufferFrames);
1441         return 0;
1442 }
1443
1444 static int snd_korg1212_playback_close(struct snd_pcm_substream *substream)
1445 {
1446         unsigned long flags;
1447         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1448
1449         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_playback_close [%s]\n",
1450                            stateName[korg1212->cardState]);
1451
1452         snd_korg1212_silence(korg1212, 0, K1212_MAX_SAMPLES, 0, korg1212->channels * 2);
1453
1454         spin_lock_irqsave(&korg1212->lock, flags);
1455
1456         korg1212->playback_pid = -1;
1457         korg1212->playback_substream = NULL;
1458         korg1212->periodsize = 0;
1459
1460         spin_unlock_irqrestore(&korg1212->lock, flags);
1461
1462         snd_korg1212_CloseCard(korg1212);
1463         return 0;
1464 }
1465
1466 static int snd_korg1212_capture_close(struct snd_pcm_substream *substream)
1467 {
1468         unsigned long flags;
1469         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1470
1471         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_capture_close [%s]\n",
1472                            stateName[korg1212->cardState]);
1473
1474         spin_lock_irqsave(&korg1212->lock, flags);
1475
1476         korg1212->capture_pid = -1;
1477         korg1212->capture_substream = NULL;
1478         korg1212->periodsize = 0;
1479
1480         spin_unlock_irqrestore(&korg1212->lock, flags);
1481
1482         snd_korg1212_CloseCard(korg1212);
1483         return 0;
1484 }
1485
1486 static int snd_korg1212_ioctl(struct snd_pcm_substream *substream,
1487                              unsigned int cmd, void *arg)
1488 {
1489         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_ioctl: cmd=%d\n", cmd);
1490
1491         if (cmd == SNDRV_PCM_IOCTL1_CHANNEL_INFO ) {
1492                 struct snd_pcm_channel_info *info = arg;
1493                 info->offset = 0;
1494                 info->first = info->channel * 16;
1495                 info->step = 256;
1496                 K1212_DEBUG_PRINTK("K1212_DEBUG: channel_info %d:, offset=%ld, first=%d, step=%d\n", info->channel, info->offset, info->first, info->step);
1497                 return 0;
1498         }
1499
1500         return snd_pcm_lib_ioctl(substream, cmd, arg);
1501 }
1502
1503 static int snd_korg1212_hw_params(struct snd_pcm_substream *substream,
1504                              struct snd_pcm_hw_params *params)
1505 {
1506         unsigned long flags;
1507         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1508         int err;
1509         pid_t this_pid;
1510         pid_t other_pid;
1511
1512         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_hw_params [%s]\n",
1513                            stateName[korg1212->cardState]);
1514
1515         spin_lock_irqsave(&korg1212->lock, flags);
1516
1517         if (substream->pstr->stream == SNDRV_PCM_STREAM_PLAYBACK) {
1518                 this_pid = korg1212->playback_pid;
1519                 other_pid = korg1212->capture_pid;
1520         } else {
1521                 this_pid = korg1212->capture_pid;
1522                 other_pid = korg1212->playback_pid;
1523         }
1524
1525         if ((other_pid > 0) && (this_pid != other_pid)) {
1526
1527                 /* The other stream is open, and not by the same
1528                    task as this one. Make sure that the parameters
1529                    that matter are the same.
1530                  */
1531
1532                 if ((int)params_rate(params) != korg1212->clkRate) {
1533                         spin_unlock_irqrestore(&korg1212->lock, flags);
1534                         _snd_pcm_hw_param_setempty(params, SNDRV_PCM_HW_PARAM_RATE);
1535                         return -EBUSY;
1536                 }
1537
1538                 spin_unlock_irqrestore(&korg1212->lock, flags);
1539                 return 0;
1540         }
1541
1542         if ((err = snd_korg1212_SetRate(korg1212, params_rate(params))) < 0) {
1543                 spin_unlock_irqrestore(&korg1212->lock, flags);
1544                 return err;
1545         }
1546
1547         korg1212->channels = params_channels(params);
1548         korg1212->periodsize = K1212_PERIOD_BYTES;
1549
1550         spin_unlock_irqrestore(&korg1212->lock, flags);
1551
1552         return 0;
1553 }
1554
1555 static int snd_korg1212_prepare(struct snd_pcm_substream *substream)
1556 {
1557         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1558         int rc;
1559
1560         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_prepare [%s]\n",
1561                            stateName[korg1212->cardState]);
1562
1563         spin_lock_irq(&korg1212->lock);
1564
1565         /* FIXME: we should wait for ack! */
1566         if (korg1212->stop_pending_cnt > 0) {
1567                 K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_prepare - Stop is pending... [%s]\n",
1568                                    stateName[korg1212->cardState]);
1569                 spin_unlock_irq(&korg1212->lock);
1570                 return -EAGAIN;
1571                 /*
1572                 korg1212->sharedBufferPtr->cardCommand = 0;
1573                 del_timer(&korg1212->timer);
1574                 korg1212->stop_pending_cnt = 0;
1575                 */
1576         }
1577
1578         rc = snd_korg1212_SetupForPlay(korg1212);
1579
1580         korg1212->currentBuffer = 0;
1581
1582         spin_unlock_irq(&korg1212->lock);
1583
1584         return rc ? -EINVAL : 0;
1585 }
1586
1587 static int snd_korg1212_trigger(struct snd_pcm_substream *substream,
1588                            int cmd)
1589 {
1590         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1591         int rc;
1592
1593         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_trigger [%s] cmd=%d\n",
1594                            stateName[korg1212->cardState], cmd);
1595
1596         spin_lock(&korg1212->lock);
1597         switch (cmd) {
1598                 case SNDRV_PCM_TRIGGER_START:
1599 /*
1600                         if (korg1212->running) {
1601                                 K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_trigger: Already running?\n");
1602                                 break;
1603                         }
1604 */
1605                         korg1212->running++;
1606                         rc = snd_korg1212_TriggerPlay(korg1212);
1607                         break;
1608
1609                 case SNDRV_PCM_TRIGGER_STOP:
1610 /*
1611                         if (!korg1212->running) {
1612                                 K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_trigger: Already stopped?\n");
1613                                 break;
1614                         }
1615 */
1616                         korg1212->running--;
1617                         rc = snd_korg1212_StopPlay(korg1212);
1618                         break;
1619
1620                 default:
1621                         rc = 1;
1622                         break;
1623         }
1624         spin_unlock(&korg1212->lock);
1625         return rc ? -EINVAL : 0;
1626 }
1627
1628 static snd_pcm_uframes_t snd_korg1212_playback_pointer(struct snd_pcm_substream *substream)
1629 {
1630         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1631         snd_pcm_uframes_t pos;
1632
1633         pos = korg1212->currentBuffer * kPlayBufferFrames;
1634
1635         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_playback_pointer [%s] %ld\n",
1636                                    stateName[korg1212->cardState], pos);
1637
1638         return pos;
1639 }
1640
1641 static snd_pcm_uframes_t snd_korg1212_capture_pointer(struct snd_pcm_substream *substream)
1642 {
1643         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1644         snd_pcm_uframes_t pos;
1645
1646         pos = korg1212->currentBuffer * kPlayBufferFrames;
1647
1648         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_capture_pointer [%s] %ld\n",
1649                                    stateName[korg1212->cardState], pos);
1650
1651         return pos;
1652 }
1653
1654 static int snd_korg1212_playback_copy(struct snd_pcm_substream *substream,
1655                         int channel, /* not used (interleaved data) */
1656                         snd_pcm_uframes_t pos,
1657                         void __user *src,
1658                         snd_pcm_uframes_t count)
1659 {
1660         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1661
1662         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_playback_copy [%s] %ld %ld\n",
1663                                    stateName[korg1212->cardState], pos, count);
1664
1665         return snd_korg1212_copy_from(korg1212, src, pos, count, 0, korg1212->channels * 2);
1666
1667 }
1668
1669 static int snd_korg1212_playback_silence(struct snd_pcm_substream *substream,
1670                            int channel, /* not used (interleaved data) */
1671                            snd_pcm_uframes_t pos,
1672                            snd_pcm_uframes_t count)
1673 {
1674         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1675
1676         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_playback_silence [%s]\n",
1677                                    stateName[korg1212->cardState]);
1678
1679         return snd_korg1212_silence(korg1212, pos, count, 0, korg1212->channels * 2);
1680 }
1681
1682 static int snd_korg1212_capture_copy(struct snd_pcm_substream *substream,
1683                         int channel, /* not used (interleaved data) */
1684                         snd_pcm_uframes_t pos,
1685                         void __user *dst,
1686                         snd_pcm_uframes_t count)
1687 {
1688         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1689
1690         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_capture_copy [%s] %ld %ld\n",
1691                                    stateName[korg1212->cardState], pos, count);
1692
1693         return snd_korg1212_copy_to(korg1212, dst, pos, count, 0, korg1212->channels * 2);
1694 }
1695
1696 static struct snd_pcm_ops snd_korg1212_playback_ops = {
1697         .open =         snd_korg1212_playback_open,
1698         .close =        snd_korg1212_playback_close,
1699         .ioctl =        snd_korg1212_ioctl,
1700         .hw_params =    snd_korg1212_hw_params,
1701         .prepare =      snd_korg1212_prepare,
1702         .trigger =      snd_korg1212_trigger,
1703         .pointer =      snd_korg1212_playback_pointer,
1704         .copy =         snd_korg1212_playback_copy,
1705         .silence =      snd_korg1212_playback_silence,
1706 };
1707
1708 static struct snd_pcm_ops snd_korg1212_capture_ops = {
1709         .open =         snd_korg1212_capture_open,
1710         .close =        snd_korg1212_capture_close,
1711         .ioctl =        snd_korg1212_ioctl,
1712         .hw_params =    snd_korg1212_hw_params,
1713         .prepare =      snd_korg1212_prepare,
1714         .trigger =      snd_korg1212_trigger,
1715         .pointer =      snd_korg1212_capture_pointer,
1716         .copy =         snd_korg1212_capture_copy,
1717 };
1718
1719 /*
1720  * Control Interface
1721  */
1722
1723 static int snd_korg1212_control_phase_info(struct snd_kcontrol *kcontrol,
1724                                            struct snd_ctl_elem_info *uinfo)
1725 {
1726         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1727         uinfo->count = (kcontrol->private_value >= 8) ? 2 : 1;
1728         return 0;
1729 }
1730
1731 static int snd_korg1212_control_phase_get(struct snd_kcontrol *kcontrol,
1732                                           struct snd_ctl_elem_value *u)
1733 {
1734         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1735         int i = kcontrol->private_value;
1736
1737         spin_lock_irq(&korg1212->lock);
1738
1739         u->value.integer.value[0] = korg1212->volumePhase[i];
1740
1741         if (i >= 8)
1742                 u->value.integer.value[1] = korg1212->volumePhase[i+1];
1743
1744         spin_unlock_irq(&korg1212->lock);
1745
1746         return 0;
1747 }
1748
1749 static int snd_korg1212_control_phase_put(struct snd_kcontrol *kcontrol,
1750                                           struct snd_ctl_elem_value *u)
1751 {
1752         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1753         int change = 0;
1754         int i, val;
1755
1756         spin_lock_irq(&korg1212->lock);
1757
1758         i = kcontrol->private_value;
1759
1760         korg1212->volumePhase[i] = u->value.integer.value[0];
1761
1762         val = korg1212->sharedBufferPtr->volumeData[kcontrol->private_value];
1763
1764         if ((u->value.integer.value[0] > 0) != (val < 0)) {
1765                 val = abs(val) * (korg1212->volumePhase[i] > 0 ? -1 : 1);
1766                 korg1212->sharedBufferPtr->volumeData[i] = val;
1767                 change = 1;
1768         }
1769
1770         if (i >= 8) {
1771                 korg1212->volumePhase[i+1] = u->value.integer.value[1];
1772
1773                 val = korg1212->sharedBufferPtr->volumeData[kcontrol->private_value+1];
1774
1775                 if ((u->value.integer.value[1] > 0) != (val < 0)) {
1776                         val = abs(val) * (korg1212->volumePhase[i+1] > 0 ? -1 : 1);
1777                         korg1212->sharedBufferPtr->volumeData[i+1] = val;
1778                         change = 1;
1779                 }
1780         }
1781
1782         spin_unlock_irq(&korg1212->lock);
1783
1784         return change;
1785 }
1786
1787 static int snd_korg1212_control_volume_info(struct snd_kcontrol *kcontrol,
1788                                             struct snd_ctl_elem_info *uinfo)
1789 {
1790         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1791         uinfo->count = (kcontrol->private_value >= 8) ? 2 : 1;
1792         uinfo->value.integer.min = k1212MinVolume;
1793         uinfo->value.integer.max = k1212MaxVolume;
1794         return 0;
1795 }
1796
1797 static int snd_korg1212_control_volume_get(struct snd_kcontrol *kcontrol,
1798                                            struct snd_ctl_elem_value *u)
1799 {
1800         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1801         int i;
1802
1803         spin_lock_irq(&korg1212->lock);
1804
1805         i = kcontrol->private_value;
1806         u->value.integer.value[0] = abs(korg1212->sharedBufferPtr->volumeData[i]);
1807
1808         if (i >= 8)
1809                 u->value.integer.value[1] = abs(korg1212->sharedBufferPtr->volumeData[i+1]);
1810
1811         spin_unlock_irq(&korg1212->lock);
1812
1813         return 0;
1814 }
1815
1816 static int snd_korg1212_control_volume_put(struct snd_kcontrol *kcontrol,
1817                                            struct snd_ctl_elem_value *u)
1818 {
1819         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1820         int change = 0;
1821         int i;
1822         int val;
1823
1824         spin_lock_irq(&korg1212->lock);
1825
1826         i = kcontrol->private_value;
1827
1828         if (u->value.integer.value[0] != abs(korg1212->sharedBufferPtr->volumeData[i])) {
1829                 val = korg1212->volumePhase[i] > 0 ? -1 : 1;
1830                 val *= u->value.integer.value[0];
1831                 korg1212->sharedBufferPtr->volumeData[i] = val;
1832                 change = 1;
1833         }
1834
1835         if (i >= 8) {
1836                 if (u->value.integer.value[1] != abs(korg1212->sharedBufferPtr->volumeData[i+1])) {
1837                         val = korg1212->volumePhase[i+1] > 0 ? -1 : 1;
1838                         val *= u->value.integer.value[1];
1839                         korg1212->sharedBufferPtr->volumeData[i+1] = val;
1840                         change = 1;
1841                 }
1842         }
1843
1844         spin_unlock_irq(&korg1212->lock);
1845
1846         return change;
1847 }
1848
1849 static int snd_korg1212_control_route_info(struct snd_kcontrol *kcontrol,
1850                                            struct snd_ctl_elem_info *uinfo)
1851 {
1852         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1853         uinfo->count = (kcontrol->private_value >= 8) ? 2 : 1;
1854         uinfo->value.enumerated.items = kAudioChannels;
1855         if (uinfo->value.enumerated.item > kAudioChannels-1) {
1856                 uinfo->value.enumerated.item = kAudioChannels-1;
1857         }
1858         strcpy(uinfo->value.enumerated.name, channelName[uinfo->value.enumerated.item]);
1859         return 0;
1860 }
1861
1862 static int snd_korg1212_control_route_get(struct snd_kcontrol *kcontrol,
1863                                           struct snd_ctl_elem_value *u)
1864 {
1865         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1866         int i;
1867
1868         spin_lock_irq(&korg1212->lock);
1869
1870         i = kcontrol->private_value;
1871         u->value.enumerated.item[0] = korg1212->sharedBufferPtr->routeData[i];
1872
1873         if (i >= 8)
1874                 u->value.enumerated.item[1] = korg1212->sharedBufferPtr->routeData[i+1];
1875
1876         spin_unlock_irq(&korg1212->lock);
1877
1878         return 0;
1879 }
1880
1881 static int snd_korg1212_control_route_put(struct snd_kcontrol *kcontrol,
1882                                           struct snd_ctl_elem_value *u)
1883 {
1884         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1885         int change = 0, i;
1886
1887         spin_lock_irq(&korg1212->lock);
1888
1889         i = kcontrol->private_value;
1890
1891         if (u->value.enumerated.item[0] != (unsigned) korg1212->sharedBufferPtr->volumeData[i]) {
1892                 korg1212->sharedBufferPtr->routeData[i] = u->value.enumerated.item[0];
1893                 change = 1;
1894         }
1895
1896         if (i >= 8) {
1897                 if (u->value.enumerated.item[1] != (unsigned) korg1212->sharedBufferPtr->volumeData[i+1]) {
1898                         korg1212->sharedBufferPtr->routeData[i+1] = u->value.enumerated.item[1];
1899                         change = 1;
1900                 }
1901         }
1902
1903         spin_unlock_irq(&korg1212->lock);
1904
1905         return change;
1906 }
1907
1908 static int snd_korg1212_control_info(struct snd_kcontrol *kcontrol,
1909                                      struct snd_ctl_elem_info *uinfo)
1910 {
1911         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1912         uinfo->count = 2;
1913         uinfo->value.integer.min = k1212MaxADCSens;
1914         uinfo->value.integer.max = k1212MinADCSens;
1915         return 0;
1916 }
1917
1918 static int snd_korg1212_control_get(struct snd_kcontrol *kcontrol,
1919                                     struct snd_ctl_elem_value *u)
1920 {
1921         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1922
1923         spin_lock_irq(&korg1212->lock);
1924
1925         u->value.integer.value[0] = korg1212->leftADCInSens;
1926         u->value.integer.value[1] = korg1212->rightADCInSens;
1927
1928         spin_unlock_irq(&korg1212->lock);
1929
1930         return 0;
1931 }
1932
1933 static int snd_korg1212_control_put(struct snd_kcontrol *kcontrol,
1934                                     struct snd_ctl_elem_value *u)
1935 {
1936         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1937         int change = 0;
1938
1939         spin_lock_irq(&korg1212->lock);
1940
1941         if (u->value.integer.value[0] != korg1212->leftADCInSens) {
1942                 korg1212->leftADCInSens = u->value.integer.value[0];
1943                 change = 1;
1944         }
1945         if (u->value.integer.value[1] != korg1212->rightADCInSens) {
1946                 korg1212->rightADCInSens = u->value.integer.value[1];
1947                 change = 1;
1948         }
1949
1950         spin_unlock_irq(&korg1212->lock);
1951
1952         if (change)
1953                 snd_korg1212_WriteADCSensitivity(korg1212);
1954
1955         return change;
1956 }
1957
1958 static int snd_korg1212_control_sync_info(struct snd_kcontrol *kcontrol,
1959                                           struct snd_ctl_elem_info *uinfo)
1960 {
1961         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1962         uinfo->count = 1;
1963         uinfo->value.enumerated.items = 3;
1964         if (uinfo->value.enumerated.item > 2) {
1965                 uinfo->value.enumerated.item = 2;
1966         }
1967         strcpy(uinfo->value.enumerated.name, clockSourceTypeName[uinfo->value.enumerated.item]);
1968         return 0;
1969 }
1970
1971 static int snd_korg1212_control_sync_get(struct snd_kcontrol *kcontrol,
1972                                          struct snd_ctl_elem_value *ucontrol)
1973 {
1974         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1975
1976         spin_lock_irq(&korg1212->lock);
1977
1978         ucontrol->value.enumerated.item[0] = korg1212->clkSource;
1979
1980         spin_unlock_irq(&korg1212->lock);
1981         return 0;
1982 }
1983
1984 static int snd_korg1212_control_sync_put(struct snd_kcontrol *kcontrol,
1985                                          struct snd_ctl_elem_value *ucontrol)
1986 {
1987         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1988         unsigned int val;
1989         int change;
1990
1991         val = ucontrol->value.enumerated.item[0] % 3;
1992         spin_lock_irq(&korg1212->lock);
1993         change = val != korg1212->clkSource;
1994         snd_korg1212_SetClockSource(korg1212, val);
1995         spin_unlock_irq(&korg1212->lock);
1996         return change;
1997 }
1998
1999 #define MON_MIXER(ord,c_name)                                                                   \
2000         {                                                                                       \
2001                 .access =       SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,       \
2002                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,                                     \
2003                 .name =         c_name " Monitor Volume",                                       \
2004                 .info =         snd_korg1212_control_volume_info,                               \
2005                 .get =          snd_korg1212_control_volume_get,                                \
2006                 .put =          snd_korg1212_control_volume_put,                                \
2007                 .private_value = ord,                                                           \
2008         },                                                                                      \
2009         {                                                                                       \
2010                 .access =       SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,       \
2011                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,                                     \
2012                 .name =         c_name " Monitor Route",                                        \
2013                 .info =         snd_korg1212_control_route_info,                                \
2014                 .get =          snd_korg1212_control_route_get,                                 \
2015                 .put =          snd_korg1212_control_route_put,                                 \
2016                 .private_value = ord,                                                           \
2017         },                                                                                      \
2018         {                                                                                       \
2019                 .access =       SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,       \
2020                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,                                     \
2021                 .name =         c_name " Monitor Phase Invert",                                 \
2022                 .info =         snd_korg1212_control_phase_info,                                \
2023                 .get =          snd_korg1212_control_phase_get,                                 \
2024                 .put =          snd_korg1212_control_phase_put,                                 \
2025                 .private_value = ord,                                                           \
2026         }
2027
2028 static struct snd_kcontrol_new snd_korg1212_controls[] = {
2029         MON_MIXER(8, "Analog"),
2030         MON_MIXER(10, "SPDIF"),
2031         MON_MIXER(0, "ADAT-1"), MON_MIXER(1, "ADAT-2"), MON_MIXER(2, "ADAT-3"), MON_MIXER(3, "ADAT-4"),
2032         MON_MIXER(4, "ADAT-5"), MON_MIXER(5, "ADAT-6"), MON_MIXER(6, "ADAT-7"), MON_MIXER(7, "ADAT-8"),
2033         {
2034                 .access =       SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,
2035                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2036                 .name =         "Sync Source",
2037                 .info =         snd_korg1212_control_sync_info,
2038                 .get =          snd_korg1212_control_sync_get,
2039                 .put =          snd_korg1212_control_sync_put,
2040         },
2041         {
2042                 .access =       SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,
2043                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2044                 .name =         "ADC Attenuation",
2045                 .info =         snd_korg1212_control_info,
2046                 .get =          snd_korg1212_control_get,
2047                 .put =          snd_korg1212_control_put,
2048         }
2049 };
2050
2051 /*
2052  * proc interface
2053  */
2054
2055 static void snd_korg1212_proc_read(struct snd_info_entry *entry,
2056                                    struct snd_info_buffer *buffer)
2057 {
2058         int n;
2059         struct snd_korg1212 *korg1212 = entry->private_data;
2060
2061         snd_iprintf(buffer, korg1212->card->longname);
2062         snd_iprintf(buffer, " (index #%d)\n", korg1212->card->number + 1);
2063         snd_iprintf(buffer, "\nGeneral settings\n");
2064         snd_iprintf(buffer, "    period size: %Zd bytes\n", K1212_PERIOD_BYTES);
2065         snd_iprintf(buffer, "     clock mode: %s\n", clockSourceName[korg1212->clkSrcRate] );
2066         snd_iprintf(buffer, "  left ADC Sens: %d\n", korg1212->leftADCInSens );
2067         snd_iprintf(buffer, " right ADC Sens: %d\n", korg1212->rightADCInSens );
2068         snd_iprintf(buffer, "    Volume Info:\n");
2069         for (n=0; n<kAudioChannels; n++)
2070                 snd_iprintf(buffer, " Channel %d: %s -> %s [%d]\n", n,
2071                                     channelName[n],
2072                                     channelName[korg1212->sharedBufferPtr->routeData[n]],
2073                                     korg1212->sharedBufferPtr->volumeData[n]);
2074         snd_iprintf(buffer, "\nGeneral status\n");
2075         snd_iprintf(buffer, " ADAT Time Code: %d\n", korg1212->sharedBufferPtr->AdatTimeCode);
2076         snd_iprintf(buffer, "     Card State: %s\n", stateName[korg1212->cardState]);
2077         snd_iprintf(buffer, "Idle mon. State: %d\n", korg1212->idleMonitorOn);
2078         snd_iprintf(buffer, "Cmd retry count: %d\n", korg1212->cmdRetryCount);
2079         snd_iprintf(buffer, "      Irq count: %ld\n", korg1212->irqcount);
2080         snd_iprintf(buffer, "    Error count: %ld\n", korg1212->totalerrorcnt);
2081 }
2082
2083 static void __devinit snd_korg1212_proc_init(struct snd_korg1212 *korg1212)
2084 {
2085         struct snd_info_entry *entry;
2086
2087         if (! snd_card_proc_new(korg1212->card, "korg1212", &entry))
2088                 snd_info_set_text_ops(entry, korg1212, snd_korg1212_proc_read);
2089 }
2090
2091 static int
2092 snd_korg1212_free(struct snd_korg1212 *korg1212)
2093 {
2094         snd_korg1212_TurnOffIdleMonitor(korg1212);
2095
2096         if (korg1212->irq >= 0) {
2097                 synchronize_irq(korg1212->irq);
2098                 snd_korg1212_DisableCardInterrupts(korg1212);
2099                 free_irq(korg1212->irq, korg1212);
2100                 korg1212->irq = -1;
2101         }
2102
2103         if (korg1212->iobase != NULL) {
2104                 iounmap(korg1212->iobase);
2105                 korg1212->iobase = NULL;
2106         }
2107
2108         pci_release_regions(korg1212->pci);
2109
2110         // ----------------------------------------------------
2111         // free up memory resources used for the DSP download.
2112         // ----------------------------------------------------
2113         if (korg1212->dma_dsp.area) {
2114                 snd_dma_free_pages(&korg1212->dma_dsp);
2115                 korg1212->dma_dsp.area = NULL;
2116         }
2117
2118 #ifndef K1212_LARGEALLOC
2119
2120         // ------------------------------------------------------
2121         // free up memory resources used for the Play/Rec Buffers
2122         // ------------------------------------------------------
2123         if (korg1212->dma_play.area) {
2124                 snd_dma_free_pages(&korg1212->dma_play);
2125                 korg1212->dma_play.area = NULL;
2126         }
2127
2128         if (korg1212->dma_rec.area) {
2129                 snd_dma_free_pages(&korg1212->dma_rec);
2130                 korg1212->dma_rec.area = NULL;
2131         }
2132
2133 #endif
2134
2135         // ----------------------------------------------------
2136         // free up memory resources used for the Shared Buffers
2137         // ----------------------------------------------------
2138         if (korg1212->dma_shared.area) {
2139                 snd_dma_free_pages(&korg1212->dma_shared);
2140                 korg1212->dma_shared.area = NULL;
2141         }
2142
2143         pci_disable_device(korg1212->pci);
2144         kfree(korg1212);
2145         return 0;
2146 }
2147
2148 static int snd_korg1212_dev_free(struct snd_device *device)
2149 {
2150         struct snd_korg1212 *korg1212 = device->device_data;
2151         K1212_DEBUG_PRINTK("K1212_DEBUG: Freeing device\n");
2152         return snd_korg1212_free(korg1212);
2153 }
2154
2155 static int __devinit snd_korg1212_create(struct snd_card *card, struct pci_dev *pci,
2156                                          struct snd_korg1212 ** rchip)
2157
2158 {
2159         int err, rc;
2160         unsigned int i;
2161         unsigned ioport_size, iomem_size, iomem2_size;
2162         struct snd_korg1212 * korg1212;
2163
2164         static struct snd_device_ops ops = {
2165                 .dev_free = snd_korg1212_dev_free,
2166         };
2167
2168         * rchip = NULL;
2169         if ((err = pci_enable_device(pci)) < 0)
2170                 return err;
2171
2172         korg1212 = kzalloc(sizeof(*korg1212), GFP_KERNEL);
2173         if (korg1212 == NULL) {
2174                 pci_disable_device(pci);
2175                 return -ENOMEM;
2176         }
2177
2178         korg1212->card = card;
2179         korg1212->pci = pci;
2180
2181         init_waitqueue_head(&korg1212->wait);
2182         spin_lock_init(&korg1212->lock);
2183         mutex_init(&korg1212->open_mutex);
2184         init_timer(&korg1212->timer);
2185         korg1212->timer.function = snd_korg1212_timer_func;
2186         korg1212->timer.data = (unsigned long)korg1212;
2187
2188         korg1212->irq = -1;
2189         korg1212->clkSource = K1212_CLKIDX_Local;
2190         korg1212->clkRate = 44100;
2191         korg1212->inIRQ = 0;
2192         korg1212->running = 0;
2193         korg1212->opencnt = 0;
2194         korg1212->playcnt = 0;
2195         korg1212->setcnt = 0;
2196         korg1212->totalerrorcnt = 0;
2197         korg1212->playback_pid = -1;
2198         korg1212->capture_pid = -1;
2199         snd_korg1212_setCardState(korg1212, K1212_STATE_UNINITIALIZED);
2200         korg1212->idleMonitorOn = 0;
2201         korg1212->clkSrcRate = K1212_CLKIDX_LocalAt44_1K;
2202         korg1212->leftADCInSens = k1212MaxADCSens;
2203         korg1212->rightADCInSens = k1212MaxADCSens;
2204
2205         for (i=0; i<kAudioChannels; i++)
2206                 korg1212->volumePhase[i] = 0;
2207
2208         if ((err = pci_request_regions(pci, "korg1212")) < 0) {
2209                 kfree(korg1212);
2210                 pci_disable_device(pci);
2211                 return err;
2212         }
2213
2214         korg1212->iomem = pci_resource_start(korg1212->pci, 0);
2215         korg1212->ioport = pci_resource_start(korg1212->pci, 1);
2216         korg1212->iomem2 = pci_resource_start(korg1212->pci, 2);
2217
2218         iomem_size = pci_resource_len(korg1212->pci, 0);
2219         ioport_size = pci_resource_len(korg1212->pci, 1);
2220         iomem2_size = pci_resource_len(korg1212->pci, 2);
2221
2222         K1212_DEBUG_PRINTK("K1212_DEBUG: resources:\n"
2223                    "    iomem = 0x%lx (%d)\n"
2224                    "    ioport  = 0x%lx (%d)\n"
2225                    "    iomem = 0x%lx (%d)\n"
2226                    "    [%s]\n",
2227                    korg1212->iomem, iomem_size,
2228                    korg1212->ioport, ioport_size,
2229                    korg1212->iomem2, iomem2_size,
2230                    stateName[korg1212->cardState]);
2231
2232         if ((korg1212->iobase = ioremap(korg1212->iomem, iomem_size)) == NULL) {
2233                 snd_printk(KERN_ERR "korg1212: unable to remap memory region 0x%lx-0x%lx\n", korg1212->iomem,
2234                            korg1212->iomem + iomem_size - 1);
2235                 snd_korg1212_free(korg1212);
2236                 return -EBUSY;
2237         }
2238
2239         err = request_irq(pci->irq, snd_korg1212_interrupt,
2240                           IRQF_DISABLED|IRQF_SHARED,
2241                           "korg1212", korg1212);
2242
2243         if (err) {
2244                 snd_printk(KERN_ERR "korg1212: unable to grab IRQ %d\n", pci->irq);
2245                 snd_korg1212_free(korg1212);
2246                 return -EBUSY;
2247         }
2248
2249         korg1212->irq = pci->irq;
2250
2251         pci_set_master(korg1212->pci);
2252
2253         korg1212->statusRegPtr = (u32 __iomem *) (korg1212->iobase + STATUS_REG_OFFSET);
2254         korg1212->outDoorbellPtr = (u32 __iomem *) (korg1212->iobase + OUT_DOORBELL_OFFSET);
2255         korg1212->inDoorbellPtr = (u32 __iomem *) (korg1212->iobase + IN_DOORBELL_OFFSET);
2256         korg1212->mailbox0Ptr = (u32 __iomem *) (korg1212->iobase + MAILBOX0_OFFSET);
2257         korg1212->mailbox1Ptr = (u32 __iomem *) (korg1212->iobase + MAILBOX1_OFFSET);
2258         korg1212->mailbox2Ptr = (u32 __iomem *) (korg1212->iobase + MAILBOX2_OFFSET);
2259         korg1212->mailbox3Ptr = (u32 __iomem *) (korg1212->iobase + MAILBOX3_OFFSET);
2260         korg1212->controlRegPtr = (u32 __iomem *) (korg1212->iobase + PCI_CONTROL_OFFSET);
2261         korg1212->sensRegPtr = (u16 __iomem *) (korg1212->iobase + SENS_CONTROL_OFFSET);
2262         korg1212->idRegPtr = (u32 __iomem *) (korg1212->iobase + DEV_VEND_ID_OFFSET);
2263
2264         K1212_DEBUG_PRINTK("K1212_DEBUG: card registers:\n"
2265                    "    Status register = 0x%p\n"
2266                    "    OutDoorbell     = 0x%p\n"
2267                    "    InDoorbell      = 0x%p\n"
2268                    "    Mailbox0        = 0x%p\n"
2269                    "    Mailbox1        = 0x%p\n"
2270                    "    Mailbox2        = 0x%p\n"
2271                    "    Mailbox3        = 0x%p\n"
2272                    "    ControlReg      = 0x%p\n"
2273                    "    SensReg         = 0x%p\n"
2274                    "    IDReg           = 0x%p\n"
2275                    "    [%s]\n",
2276                    korg1212->statusRegPtr,
2277                    korg1212->outDoorbellPtr,
2278                    korg1212->inDoorbellPtr,
2279                    korg1212->mailbox0Ptr,
2280                    korg1212->mailbox1Ptr,
2281                    korg1212->mailbox2Ptr,
2282                    korg1212->mailbox3Ptr,
2283                    korg1212->controlRegPtr,
2284                    korg1212->sensRegPtr,
2285                    korg1212->idRegPtr,
2286                    stateName[korg1212->cardState]);
2287
2288         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
2289                                 sizeof(struct KorgSharedBuffer), &korg1212->dma_shared) < 0) {
2290                 snd_printk(KERN_ERR "korg1212: can not allocate shared buffer memory (%Zd bytes)\n", sizeof(struct KorgSharedBuffer));
2291                 snd_korg1212_free(korg1212);
2292                 return -ENOMEM;
2293         }
2294         korg1212->sharedBufferPtr = (struct KorgSharedBuffer *)korg1212->dma_shared.area;
2295         korg1212->sharedBufferPhy = korg1212->dma_shared.addr;
2296
2297         K1212_DEBUG_PRINTK("K1212_DEBUG: Shared Buffer Area = 0x%p (0x%08lx), %d bytes\n", korg1212->sharedBufferPtr, korg1212->sharedBufferPhy, sizeof(struct KorgSharedBuffer));
2298
2299 #ifndef K1212_LARGEALLOC
2300
2301         korg1212->DataBufsSize = sizeof(struct KorgAudioBuffer) * kNumBuffers;
2302
2303         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
2304                                 korg1212->DataBufsSize, &korg1212->dma_play) < 0) {
2305                 snd_printk(KERN_ERR "korg1212: can not allocate play data buffer memory (%d bytes)\n", korg1212->DataBufsSize);
2306                 snd_korg1212_free(korg1212);
2307                 return -ENOMEM;
2308         }
2309         korg1212->playDataBufsPtr = (struct KorgAudioBuffer *)korg1212->dma_play.area;
2310         korg1212->PlayDataPhy = korg1212->dma_play.addr;
2311
2312         K1212_DEBUG_PRINTK("K1212_DEBUG: Play Data Area = 0x%p (0x%08x), %d bytes\n",
2313                 korg1212->playDataBufsPtr, korg1212->PlayDataPhy, korg1212->DataBufsSize);
2314
2315         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
2316                                 korg1212->DataBufsSize, &korg1212->dma_rec) < 0) {
2317                 snd_printk(KERN_ERR "korg1212: can not allocate record data buffer memory (%d bytes)\n", korg1212->DataBufsSize);
2318                 snd_korg1212_free(korg1212);
2319                 return -ENOMEM;
2320         }
2321         korg1212->recordDataBufsPtr = (struct KorgAudioBuffer *)korg1212->dma_rec.area;
2322         korg1212->RecDataPhy = korg1212->dma_rec.addr;
2323
2324         K1212_DEBUG_PRINTK("K1212_DEBUG: Record Data Area = 0x%p (0x%08x), %d bytes\n",
2325                 korg1212->recordDataBufsPtr, korg1212->RecDataPhy, korg1212->DataBufsSize);
2326
2327 #else // K1212_LARGEALLOC
2328
2329         korg1212->recordDataBufsPtr = korg1212->sharedBufferPtr->recordDataBufs;
2330         korg1212->playDataBufsPtr = korg1212->sharedBufferPtr->playDataBufs;
2331         korg1212->PlayDataPhy = (u32) &((struct KorgSharedBuffer *) korg1212->sharedBufferPhy)->playDataBufs;
2332         korg1212->RecDataPhy  = (u32) &((struct KorgSharedBuffer *) korg1212->sharedBufferPhy)->recordDataBufs;
2333
2334 #endif // K1212_LARGEALLOC
2335
2336         korg1212->dspCodeSize = sizeof (dspCode);
2337
2338         korg1212->VolumeTablePhy = korg1212->sharedBufferPhy +
2339                 offsetof(struct KorgSharedBuffer, volumeData);
2340         korg1212->RoutingTablePhy = korg1212->sharedBufferPhy +
2341                 offsetof(struct KorgSharedBuffer, routeData);
2342         korg1212->AdatTimeCodePhy = korg1212->sharedBufferPhy +
2343                 offsetof(struct KorgSharedBuffer, AdatTimeCode);
2344
2345         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
2346                                 korg1212->dspCodeSize, &korg1212->dma_dsp) < 0) {
2347                 snd_printk(KERN_ERR "korg1212: can not allocate dsp code memory (%d bytes)\n", korg1212->dspCodeSize);
2348                 snd_korg1212_free(korg1212);
2349                 return -ENOMEM;
2350         }
2351
2352         K1212_DEBUG_PRINTK("K1212_DEBUG: DSP Code area = 0x%p (0x%08x) %d bytes [%s]\n",
2353                    korg1212->dma_dsp.area, korg1212->dma_dsp.addr, korg1212->dspCodeSize,
2354                    stateName[korg1212->cardState]);
2355
2356         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_RebootCard, 0, 0, 0, 0);
2357
2358         if (rc)
2359                 K1212_DEBUG_PRINTK("K1212_DEBUG: Reboot Card - RC = %d [%s]\n", rc, stateName[korg1212->cardState]);
2360
2361         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, korg1212, &ops)) < 0) {
2362                 snd_korg1212_free(korg1212);
2363                 return err;
2364         }
2365
2366         snd_korg1212_EnableCardInterrupts(korg1212);
2367
2368         mdelay(CARD_BOOT_DELAY_IN_MS);
2369
2370         if (snd_korg1212_downloadDSPCode(korg1212))
2371                 return -EBUSY;
2372
2373         K1212_DEBUG_PRINTK("korg1212: dspMemPhy = %08x U[%08x], "
2374                "PlayDataPhy = %08x L[%08x]\n"
2375                "korg1212: RecDataPhy = %08x L[%08x], "
2376                "VolumeTablePhy = %08x L[%08x]\n"
2377                "korg1212: RoutingTablePhy = %08x L[%08x], "
2378                "AdatTimeCodePhy = %08x L[%08x]\n",
2379                (int)korg1212->dma_dsp.addr,    UpperWordSwap(korg1212->dma_dsp.addr),
2380                korg1212->PlayDataPhy,     LowerWordSwap(korg1212->PlayDataPhy),
2381                korg1212->RecDataPhy,      LowerWordSwap(korg1212->RecDataPhy),
2382                korg1212->VolumeTablePhy,  LowerWordSwap(korg1212->VolumeTablePhy),
2383                korg1212->RoutingTablePhy, LowerWordSwap(korg1212->RoutingTablePhy),
2384                korg1212->AdatTimeCodePhy, LowerWordSwap(korg1212->AdatTimeCodePhy));
2385
2386         if ((err = snd_pcm_new(korg1212->card, "korg1212", 0, 1, 1, &korg1212->pcm)) < 0)
2387                 return err;
2388
2389         korg1212->pcm->private_data = korg1212;
2390         korg1212->pcm->private_free = snd_korg1212_free_pcm;
2391         strcpy(korg1212->pcm->name, "korg1212");
2392
2393         snd_pcm_set_ops(korg1212->pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_korg1212_playback_ops);
2394
2395         snd_pcm_set_ops(korg1212->pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_korg1212_capture_ops);
2396
2397         korg1212->pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
2398
2399         for (i = 0; i < ARRAY_SIZE(snd_korg1212_controls); i++) {
2400                 err = snd_ctl_add(korg1212->card, snd_ctl_new1(&snd_korg1212_controls[i], korg1212));
2401                 if (err < 0)
2402                         return err;
2403         }
2404
2405         snd_korg1212_proc_init(korg1212);
2406
2407         snd_card_set_dev(card, &pci->dev);
2408
2409         * rchip = korg1212;
2410         return 0;
2411
2412 }
2413
2414 /*
2415  * Card initialisation
2416  */
2417
2418 static int __devinit
2419 snd_korg1212_probe(struct pci_dev *pci,
2420                 const struct pci_device_id *pci_id)
2421 {
2422         static int dev;
2423         struct snd_korg1212 *korg1212;
2424         struct snd_card *card;
2425         int err;
2426
2427         if (dev >= SNDRV_CARDS) {
2428                 return -ENODEV;
2429         }
2430         if (!enable[dev]) {
2431                 dev++;
2432                 return -ENOENT;
2433         }
2434         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
2435         if (card == NULL)
2436                 return -ENOMEM;
2437
2438         if ((err = snd_korg1212_create(card, pci, &korg1212)) < 0) {
2439                 snd_card_free(card);
2440                 return err;
2441         }
2442
2443         strcpy(card->driver, "korg1212");
2444         strcpy(card->shortname, "korg1212");
2445         sprintf(card->longname, "%s at 0x%lx, irq %d", card->shortname,
2446                 korg1212->iomem, korg1212->irq);
2447
2448         K1212_DEBUG_PRINTK("K1212_DEBUG: %s\n", card->longname);
2449
2450         if ((err = snd_card_register(card)) < 0) {
2451                 snd_card_free(card);
2452                 return err;
2453         }
2454         pci_set_drvdata(pci, card);
2455         dev++;
2456         return 0;
2457 }
2458
2459 static void __devexit snd_korg1212_remove(struct pci_dev *pci)
2460 {
2461         snd_card_free(pci_get_drvdata(pci));
2462         pci_set_drvdata(pci, NULL);
2463 }
2464
2465 static struct pci_driver driver = {
2466         .name = "korg1212",
2467         .id_table = snd_korg1212_ids,
2468         .probe = snd_korg1212_probe,
2469         .remove = __devexit_p(snd_korg1212_remove),
2470 };
2471
2472 static int __init alsa_card_korg1212_init(void)
2473 {
2474         return pci_register_driver(&driver);
2475 }
2476
2477 static void __exit alsa_card_korg1212_exit(void)
2478 {
2479         pci_unregister_driver(&driver);
2480 }
2481
2482 module_init(alsa_card_korg1212_init)
2483 module_exit(alsa_card_korg1212_exit)