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   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 <linux/delay.h>
  23 #include <linux/init.h>
  24 #include <linux/interrupt.h>
  25 #include <linux/pci.h>
  26 #include <linux/slab.h>
  27 #include <linux/wait.h>
  28 #include <linux/moduleparam.h>
  29 #include <linux/mutex.h>
  30 #include <linux/firmware.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 MAX_COMMAND_RETRIES  5         // maximum number of times the driver will attempt
 166                                        //    to send a command before giving up.
 167 #define COMMAND_ACK_MASK     0x8000    // the MSB is set in the command acknowledgment from
 168                                         //    the card.
 169 #define DOORBELL_VAL_MASK    0x00FF    // the doorbell value is one byte
 170
 171 #define CARD_BOOT_DELAY_IN_MS  10
 172 #define CARD_BOOT_TIMEOUT      10
 173 #define DSP_BOOT_DELAY_IN_MS   200
 174
 175 #define kNumBuffers             8
 176 #define k1212MaxCards           4
 177 #define k1212NumWaveDevices     6
 178 #define k16BitChannels          10
 179 #define k32BitChannels          2
 180 #define kAudioChannels          (k16BitChannels + k32BitChannels)
 181 #define kPlayBufferFrames       1024
 182
 183 #define K1212_ANALOG_CHANNELS   2
 184 #define K1212_SPDIF_CHANNELS    2
 185 #define K1212_ADAT_CHANNELS     8
 186 #define K1212_CHANNELS          (K1212_ADAT_CHANNELS + K1212_ANALOG_CHANNELS)
 187 #define K1212_MIN_CHANNELS      1
 188 #define K1212_MAX_CHANNELS      K1212_CHANNELS
 189 #define K1212_FRAME_SIZE        (sizeof(struct KorgAudioFrame))
 190 #define K1212_MAX_SAMPLES       (kPlayBufferFrames*kNumBuffers)
 191 #define K1212_PERIODS           (kNumBuffers)
 192 #define K1212_PERIOD_BYTES      (K1212_FRAME_SIZE*kPlayBufferFrames)
 193 #define K1212_BUF_SIZE          (K1212_PERIOD_BYTES*kNumBuffers)
 194 #define K1212_ANALOG_BUF_SIZE   (K1212_ANALOG_CHANNELS * 2 * kPlayBufferFrames * kNumBuffers)
 195 #define K1212_SPDIF_BUF_SIZE    (K1212_SPDIF_CHANNELS * 3 * kPlayBufferFrames * kNumBuffers)
 196 #define K1212_ADAT_BUF_SIZE     (K1212_ADAT_CHANNELS * 2 * kPlayBufferFrames * kNumBuffers)
 197 #define K1212_MAX_BUF_SIZE      (K1212_ANALOG_BUF_SIZE + K1212_ADAT_BUF_SIZE)
 198
 199 #define k1212MinADCSens     0x7f
 200 #define k1212MaxADCSens     0x00
 201 #define k1212MaxVolume      0x7fff
 202 #define k1212MaxWaveVolume  0xffff
 203 #define k1212MinVolume      0x0000
 204 #define k1212MaxVolInverted 0x8000
 205
 206 // -----------------------------------------------------------------
 207 // the following bits are used for controlling interrupts in the
 208 // interrupt control/status reg
 209 // -----------------------------------------------------------------
 210 #define  PCI_INT_ENABLE_BIT               0x00000100
 211 #define  PCI_DOORBELL_INT_ENABLE_BIT      0x00000200
 212 #define  LOCAL_INT_ENABLE_BIT             0x00010000
 213 #define  LOCAL_DOORBELL_INT_ENABLE_BIT    0x00020000
 214 #define  LOCAL_DMA1_INT_ENABLE_BIT        0x00080000
 215
 216 // -----------------------------------------------------------------
 217 // the following bits are defined for the PCI command register
 218 // -----------------------------------------------------------------
 219 #define  PCI_CMD_MEM_SPACE_ENABLE_BIT     0x0002
 220 #define  PCI_CMD_IO_SPACE_ENABLE_BIT      0x0001
 221 #define  PCI_CMD_BUS_MASTER_ENABLE_BIT    0x0004
 222
 223 // -----------------------------------------------------------------
 224 // the following bits are defined for the PCI status register
 225 // -----------------------------------------------------------------
 226 #define  PCI_STAT_PARITY_ERROR_BIT        0x8000
 227 #define  PCI_STAT_SYSTEM_ERROR_BIT        0x4000
 228 #define  PCI_STAT_MASTER_ABORT_RCVD_BIT   0x2000
 229 #define  PCI_STAT_TARGET_ABORT_RCVD_BIT   0x1000
 230 #define  PCI_STAT_TARGET_ABORT_SENT_BIT   0x0800
 231
 232 // ------------------------------------------------------------------------
 233 // the following constants are used in setting the 1212 I/O card's input
 234 // sensitivity.
 235 // ------------------------------------------------------------------------
 236 #define  SET_SENS_LOCALINIT_BITPOS        15
 237 #define  SET_SENS_DATA_BITPOS             10
 238 #define  SET_SENS_CLOCK_BITPOS            8
 239 #define  SET_SENS_LOADSHIFT_BITPOS        0
 240
 241 #define  SET_SENS_LEFTCHANID              0x00
 242 #define  SET_SENS_RIGHTCHANID             0x01
 243
 244 #define  K1212SENSUPDATE_DELAY_IN_MS      50
 245
 246 // --------------------------------------------------------------------------
 247 // WaitRTCTicks
 248 //
 249 //    This function waits the specified number of real time clock ticks.
 250 //    According to the DDK, each tick is ~0.8 microseconds.
 251 //    The defines following the function declaration can be used for the
 252 //    numTicksToWait parameter.
 253 // --------------------------------------------------------------------------
 254 #define ONE_RTC_TICK         1
 255 #define SENSCLKPULSE_WIDTH   4
 256 #define LOADSHIFT_DELAY      4
 257 #define INTERCOMMAND_DELAY  40
 258 #define STOPCARD_DELAY      300        // max # RTC ticks for the card to stop once we write
 259                                        //    the command register.  (could be up to 180 us)
 260 #define COMMAND_ACK_DELAY   13         // number of RTC ticks to wait for an acknowledgement
 261                                        //    from the card after sending a command.
 262
 263 enum ClockSourceIndex {
 264    K1212_CLKIDX_AdatAt44_1K = 0,    // selects source as ADAT at 44.1 kHz
 265    K1212_CLKIDX_AdatAt48K,          // selects source as ADAT at 48 kHz
 266    K1212_CLKIDX_WordAt44_1K,        // selects source as S/PDIF at 44.1 kHz
 267    K1212_CLKIDX_WordAt48K,          // selects source as S/PDIF at 48 kHz
 268    K1212_CLKIDX_LocalAt44_1K,       // selects source as local clock at 44.1 kHz
 269    K1212_CLKIDX_LocalAt48K,         // selects source as local clock at 48 kHz
 270    K1212_CLKIDX_Invalid             // used to check validity of the index
 271 };
 272
 273 enum ClockSourceType {
 274    K1212_CLKIDX_Adat = 0,    // selects source as ADAT
 275    K1212_CLKIDX_Word,        // selects source as S/PDIF
 276    K1212_CLKIDX_Local        // selects source as local clock
 277 };
 278
 279 struct KorgAudioFrame {
 280         u16 frameData16[k16BitChannels]; /* channels 0-9 use 16 bit samples */
 281         u32 frameData32[k32BitChannels]; /* channels 10-11 use 32 bits - only 20 are sent across S/PDIF */
 282         u32 timeCodeVal; /* holds the ADAT timecode value */
 283 };
 284
 285 struct KorgAudioBuffer {
 286         struct KorgAudioFrame  bufferData[kPlayBufferFrames];     /* buffer definition */
 287 };
 288
 289 struct KorgSharedBuffer {
 290 #ifdef K1212_LARGEALLOC
 291    struct KorgAudioBuffer   playDataBufs[kNumBuffers];
 292    struct KorgAudioBuffer   recordDataBufs[kNumBuffers];
 293 #endif
 294    short             volumeData[kAudioChannels];
 295    u32               cardCommand;
 296    u16               routeData [kAudioChannels];
 297    u32               AdatTimeCode;                 // ADAT timecode value
 298 };
 299
 300 struct SensBits {
 301    union {
 302       struct {
 303          unsigned int leftChanVal:8;
 304          unsigned int leftChanId:8;
 305       } v;
 306       u16  leftSensBits;
 307    } l;
 308    union {
 309       struct {
 310          unsigned int rightChanVal:8;
 311          unsigned int rightChanId:8;
 312       } v;
 313       u16  rightSensBits;
 314    } r;
 315 };
 316
 317 struct snd_korg1212 {
 318         struct snd_card *card;
 319         struct pci_dev *pci;
 320         struct snd_pcm *pcm;
 321         int irq;
 322
 323         spinlock_t    lock;
 324         struct mutex open_mutex;
 325
 326         struct timer_list timer;        /* timer callback for checking ack of stop request */
 327         int stop_pending_cnt;           /* counter for stop pending check */
 328
 329         wait_queue_head_t wait;
 330
 331         unsigned long iomem;
 332         unsigned long ioport;
 333         unsigned long iomem2;
 334         unsigned long irqcount;
 335         unsigned long inIRQ;
 336         void __iomem *iobase;
 337
 338         struct snd_dma_buffer dma_dsp;
 339         struct snd_dma_buffer dma_play;
 340         struct snd_dma_buffer dma_rec;
 341         struct snd_dma_buffer dma_shared;
 342
 343         u32 DataBufsSize;
 344
 345         struct KorgAudioBuffer  * playDataBufsPtr;
 346         struct KorgAudioBuffer  * recordDataBufsPtr;
 347
 348         struct KorgSharedBuffer * sharedBufferPtr;
 349
 350         u32 RecDataPhy;
 351         u32 PlayDataPhy;
 352         unsigned long sharedBufferPhy;
 353         u32 VolumeTablePhy;
 354         u32 RoutingTablePhy;
 355         u32 AdatTimeCodePhy;
 356
 357         u32 __iomem * statusRegPtr;          // address of the interrupt status/control register
 358         u32 __iomem * outDoorbellPtr;        // address of the host->card doorbell register
 359         u32 __iomem * inDoorbellPtr;         // address of the card->host doorbell register
 360         u32 __iomem * mailbox0Ptr;           // address of mailbox 0 on the card
 361         u32 __iomem * mailbox1Ptr;           // address of mailbox 1 on the card
 362         u32 __iomem * mailbox2Ptr;           // address of mailbox 2 on the card
 363         u32 __iomem * mailbox3Ptr;           // address of mailbox 3 on the card
 364         u32 __iomem * controlRegPtr;         // address of the EEPROM, PCI, I/O, Init ctrl reg
 365         u16 __iomem * sensRegPtr;            // address of the sensitivity setting register
 366         u32 __iomem * idRegPtr;              // address of the device and vendor ID registers
 367
 368         size_t periodsize;
 369         int channels;
 370         int currentBuffer;
 371
 372         struct snd_pcm_substream *playback_substream;
 373         struct snd_pcm_substream *capture_substream;
 374
 375         pid_t capture_pid;
 376         pid_t playback_pid;
 377
 378         enum CardState cardState;
 379         int running;
 380         int idleMonitorOn;           // indicates whether the card is in idle monitor mode.
 381         u32 cmdRetryCount;           // tracks how many times we have retried sending to the card.
 382
 383         enum ClockSourceIndex clkSrcRate; // sample rate and clock source
 384
 385         enum ClockSourceType clkSource;   // clock source
 386         int clkRate;                 // clock rate
 387
 388         int volumePhase[kAudioChannels];
 389
 390         u16 leftADCInSens;           // ADC left channel input sensitivity
 391         u16 rightADCInSens;          // ADC right channel input sensitivity
 392
 393         int opencnt;                 // Open/Close count
 394         int setcnt;                  // SetupForPlay count
 395         int playcnt;                 // TriggerPlay count
 396         int errorcnt;                // Error Count
 397         unsigned long totalerrorcnt; // Total Error Count
 398
 399         int dsp_is_loaded;
 400         int dsp_stop_is_processed;
 401
 402 };
 403
 404 MODULE_DESCRIPTION("korg1212");
 405 MODULE_LICENSE("GPL");
 406 MODULE_SUPPORTED_DEVICE("{{KORG,korg1212}}");
 407 MODULE_FIRMWARE("korg/k1212.dsp");
 408
 409 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;     /* Index 0-MAX */
 410 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;          /* ID for this card */
 411 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
 412
 413 module_param_array(index, int, NULL, 0444);
 414 MODULE_PARM_DESC(index, "Index value for Korg 1212 soundcard.");
 415 module_param_array(id, charp, NULL, 0444);
 416 MODULE_PARM_DESC(id, "ID string for Korg 1212 soundcard.");
 417 module_param_array(enable, bool, NULL, 0444);
 418 MODULE_PARM_DESC(enable, "Enable Korg 1212 soundcard.");
 419 MODULE_AUTHOR("Haroldo Gamal <gamal@alternex.com.br>");
 420
 421 static DEFINE_PCI_DEVICE_TABLE(snd_korg1212_ids) = {
 422         {
 423                 .vendor    = 0x10b5,
 424                 .device    = 0x906d,
 425                 .subvendor = PCI_ANY_ID,
 426                 .subdevice = PCI_ANY_ID,
 427         },
 428         { 0, },
 429 };
 430
 431 MODULE_DEVICE_TABLE(pci, snd_korg1212_ids);
 432
 433 static char *stateName[] = {
 434         "Non-existent",
 435         "Uninitialized",
 436         "DSP download in process",
 437         "DSP download complete",
 438         "Ready",
 439         "Open",
 440         "Setup for play",
 441         "Playing",
 442         "Monitor mode on",
 443         "Calibrating",
 444         "Invalid"
 445 };
 446
 447 static char *clockSourceTypeName[] = { "ADAT", "S/PDIF", "local" };
 448
 449 static char *clockSourceName[] = {
 450         "ADAT at 44.1 kHz",
 451         "ADAT at 48 kHz",
 452         "S/PDIF at 44.1 kHz",
 453         "S/PDIF at 48 kHz",
 454         "local clock at 44.1 kHz",
 455         "local clock at 48 kHz"
 456 };
 457
 458 static char *channelName[] = {
 459         "ADAT-1",
 460         "ADAT-2",
 461         "ADAT-3",
 462         "ADAT-4",
 463         "ADAT-5",
 464         "ADAT-6",
 465         "ADAT-7",
 466         "ADAT-8",
 467         "Analog-L",
 468         "Analog-R",
 469         "SPDIF-L",
 470         "SPDIF-R",
 471 };
 472
 473 static u16 ClockSourceSelector[] = {
 474         0x8000,   // selects source as ADAT at 44.1 kHz
 475         0x0000,   // selects source as ADAT at 48 kHz
 476         0x8001,   // selects source as S/PDIF at 44.1 kHz
 477         0x0001,   // selects source as S/PDIF at 48 kHz
 478         0x8002,   // selects source as local clock at 44.1 kHz
 479         0x0002    // selects source as local clock at 48 kHz
 480 };
 481
 482 union swap_u32 { unsigned char c[4]; u32 i; };
 483
 484 #ifdef SNDRV_BIG_ENDIAN
 485 static u32 LowerWordSwap(u32 swappee)
 486 #else
 487 static u32 UpperWordSwap(u32 swappee)
 488 #endif
 489 {
 490    union swap_u32 retVal, swapper;
 491
 492    swapper.i = swappee;
 493    retVal.c[2] = swapper.c[3];
 494    retVal.c[3] = swapper.c[2];
 495    retVal.c[1] = swapper.c[1];
 496    retVal.c[0] = swapper.c[0];
 497
 498    return retVal.i;
 499 }
 500
 501 #ifdef SNDRV_BIG_ENDIAN
 502 static u32 UpperWordSwap(u32 swappee)
 503 #else
 504 static u32 LowerWordSwap(u32 swappee)
 505 #endif
 506 {
 507    union swap_u32 retVal, swapper;
 508
 509    swapper.i = swappee;
 510    retVal.c[2] = swapper.c[2];
 511    retVal.c[3] = swapper.c[3];
 512    retVal.c[1] = swapper.c[0];
 513    retVal.c[0] = swapper.c[1];
 514
 515    return retVal.i;
 516 }
 517
 518 #define SetBitInWord(theWord,bitPosition)       (*theWord) |= (0x0001 << bitPosition)
 519 #define SetBitInDWord(theWord,bitPosition)      (*theWord) |= (0x00000001 << bitPosition)
 520 #define ClearBitInWord(theWord,bitPosition)     (*theWord) &= ~(0x0001 << bitPosition)
 521 #define ClearBitInDWord(theWord,bitPosition)    (*theWord) &= ~(0x00000001 << bitPosition)
 522
 523 static int snd_korg1212_Send1212Command(struct snd_korg1212 *korg1212,
 524                                         enum korg1212_dbcnst doorbellVal,
 525                                         u32 mailBox0Val, u32 mailBox1Val,
 526                                         u32 mailBox2Val, u32 mailBox3Val)
 527 {
 528         u32 retryCount;
 529         u16 mailBox3Lo;
 530         int rc = K1212_CMDRET_Success;
 531
 532         if (!korg1212->outDoorbellPtr) {
 533                 K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: CardUninitialized\n");
 534                 return K1212_CMDRET_CardUninitialized;
 535         }
 536
 537         K1212_DEBUG_PRINTK("K1212_DEBUG: Card <- 0x%08x 0x%08x [%s]\n",
 538                            doorbellVal, mailBox0Val, stateName[korg1212->cardState]);
 539         for (retryCount = 0; retryCount < MAX_COMMAND_RETRIES; retryCount++) {
 540                 writel(mailBox3Val, korg1212->mailbox3Ptr);
 541                 writel(mailBox2Val, korg1212->mailbox2Ptr);
 542                 writel(mailBox1Val, korg1212->mailbox1Ptr);
 543                 writel(mailBox0Val, korg1212->mailbox0Ptr);
 544                 writel(doorbellVal, korg1212->outDoorbellPtr);  // interrupt the card
 545
 546                 // --------------------------------------------------------------
 547                 // the reboot command will not give an acknowledgement.
 548                 // --------------------------------------------------------------
 549                 if ( doorbellVal == K1212_DB_RebootCard ||
 550                         doorbellVal == K1212_DB_BootFromDSPPage4 ||
 551                         doorbellVal == K1212_DB_StartDSPDownload ) {
 552                         rc = K1212_CMDRET_Success;
 553                         break;
 554                 }
 555
 556                 // --------------------------------------------------------------
 557                 // See if the card acknowledged the command.  Wait a bit, then
 558                 // read in the low word of mailbox3.  If the MSB is set and the
 559                 // low byte is equal to the doorbell value, then it ack'd.
 560                 // --------------------------------------------------------------
 561                 udelay(COMMAND_ACK_DELAY);
 562                 mailBox3Lo = readl(korg1212->mailbox3Ptr);
 563                 if (mailBox3Lo & COMMAND_ACK_MASK) {
 564                         if ((mailBox3Lo & DOORBELL_VAL_MASK) == (doorbellVal & DOORBELL_VAL_MASK)) {
 565                                 K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: Card <- Success\n");
 566                                 rc = K1212_CMDRET_Success;
 567                                 break;
 568                         }
 569                 }
 570         }
 571         korg1212->cmdRetryCount += retryCount;
 572
 573         if (retryCount >= MAX_COMMAND_RETRIES) {
 574                 K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: Card <- NoAckFromCard\n");
 575                 rc = K1212_CMDRET_NoAckFromCard;
 576         }
 577
 578         return rc;
 579 }
 580
 581 /* spinlock already held */
 582 static void snd_korg1212_SendStop(struct snd_korg1212 *korg1212)
 583 {
 584         if (! korg1212->stop_pending_cnt) {
 585                 korg1212->sharedBufferPtr->cardCommand = 0xffffffff;
 586                 /* program the timer */
 587                 korg1212->stop_pending_cnt = HZ;
 588                 korg1212->timer.expires = jiffies + 1;
 589                 add_timer(&korg1212->timer);
 590         }
 591 }
 592
 593 static void snd_korg1212_SendStopAndWait(struct snd_korg1212 *korg1212)
 594 {
 595         unsigned long flags;
 596         spin_lock_irqsave(&korg1212->lock, flags);
 597         korg1212->dsp_stop_is_processed = 0;
 598         snd_korg1212_SendStop(korg1212);
 599         spin_unlock_irqrestore(&korg1212->lock, flags);
 600         wait_event_timeout(korg1212->wait, korg1212->dsp_stop_is_processed, (HZ * 3) / 2);
 601 }
 602
 603 /* timer callback for checking the ack of stop request */
 604 static void snd_korg1212_timer_func(unsigned long data)
 605 {
 606         struct snd_korg1212 *korg1212 = (struct snd_korg1212 *) data;
 607         unsigned long flags;
 608
 609         spin_lock_irqsave(&korg1212->lock, flags);
 610         if (korg1212->sharedBufferPtr->cardCommand == 0) {
 611                 /* ack'ed */
 612                 korg1212->stop_pending_cnt = 0;
 613                 korg1212->dsp_stop_is_processed = 1;
 614                 wake_up(&korg1212->wait);
 615                 K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: Stop ack'ed [%s]\n",
 616                                            stateName[korg1212->cardState]);
 617         } else {
 618                 if (--korg1212->stop_pending_cnt > 0) {
 619                         /* reprogram timer */
 620                         korg1212->timer.expires = jiffies + 1;
 621                         add_timer(&korg1212->timer);
 622                 } else {
 623                         snd_printd("korg1212_timer_func timeout\n");
 624                         korg1212->sharedBufferPtr->cardCommand = 0;
 625                         korg1212->dsp_stop_is_processed = 1;
 626                         wake_up(&korg1212->wait);
 627                         K1212_DEBUG_PRINTK("K1212_DEBUG: Stop timeout [%s]\n",
 628                                            stateName[korg1212->cardState]);
 629                 }
 630         }
 631         spin_unlock_irqrestore(&korg1212->lock, flags);
 632 }
 633
 634 static int snd_korg1212_TurnOnIdleMonitor(struct snd_korg1212 *korg1212)
 635 {
 636         unsigned long flags;
 637         int rc;
 638
 639         udelay(INTERCOMMAND_DELAY);
 640         spin_lock_irqsave(&korg1212->lock, flags);
 641         korg1212->idleMonitorOn = 1;
 642         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SelectPlayMode,
 643                                           K1212_MODE_MonitorOn, 0, 0, 0);
 644         spin_unlock_irqrestore(&korg1212->lock, flags);
 645         return rc;
 646 }
 647
 648 static void snd_korg1212_TurnOffIdleMonitor(struct snd_korg1212 *korg1212)
 649 {
 650         if (korg1212->idleMonitorOn) {
 651                 snd_korg1212_SendStopAndWait(korg1212);
 652                 korg1212->idleMonitorOn = 0;
 653         }
 654 }
 655
 656 static inline void snd_korg1212_setCardState(struct snd_korg1212 * korg1212, enum CardState csState)
 657 {
 658         korg1212->cardState = csState;
 659 }
 660
 661 static int snd_korg1212_OpenCard(struct snd_korg1212 * korg1212)
 662 {
 663         K1212_DEBUG_PRINTK("K1212_DEBUG: OpenCard [%s] %d\n",
 664                            stateName[korg1212->cardState], korg1212->opencnt);
 665         mutex_lock(&korg1212->open_mutex);
 666         if (korg1212->opencnt++ == 0) {
 667                 snd_korg1212_TurnOffIdleMonitor(korg1212);
 668                 snd_korg1212_setCardState(korg1212, K1212_STATE_OPEN);
 669         }
 670
 671         mutex_unlock(&korg1212->open_mutex);
 672         return 1;
 673 }
 674
 675 static int snd_korg1212_CloseCard(struct snd_korg1212 * korg1212)
 676 {
 677         K1212_DEBUG_PRINTK("K1212_DEBUG: CloseCard [%s] %d\n",
 678                            stateName[korg1212->cardState], korg1212->opencnt);
 679
 680         mutex_lock(&korg1212->open_mutex);
 681         if (--(korg1212->opencnt)) {
 682                 mutex_unlock(&korg1212->open_mutex);
 683                 return 0;
 684         }
 685
 686         if (korg1212->cardState == K1212_STATE_SETUP) {
 687                 int rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SelectPlayMode,
 688                                 K1212_MODE_StopPlay, 0, 0, 0);
 689                 if (rc)
 690                         K1212_DEBUG_PRINTK("K1212_DEBUG: CloseCard - RC = %d [%s]\n",
 691                                            rc, stateName[korg1212->cardState]);
 692                 if (rc != K1212_CMDRET_Success) {
 693                         mutex_unlock(&korg1212->open_mutex);
 694                         return 0;
 695                 }
 696         } else if (korg1212->cardState > K1212_STATE_SETUP) {
 697                 snd_korg1212_SendStopAndWait(korg1212);
 698         }
 699
 700         if (korg1212->cardState > K1212_STATE_READY) {
 701                 snd_korg1212_TurnOnIdleMonitor(korg1212);
 702                 snd_korg1212_setCardState(korg1212, K1212_STATE_READY);
 703         }
 704
 705         mutex_unlock(&korg1212->open_mutex);
 706         return 0;
 707 }
 708
 709 /* spinlock already held */
 710 static int snd_korg1212_SetupForPlay(struct snd_korg1212 * korg1212)
 711 {
 712         int rc;
 713
 714         K1212_DEBUG_PRINTK("K1212_DEBUG: SetupForPlay [%s] %d\n",
 715                            stateName[korg1212->cardState], korg1212->setcnt);
 716
 717         if (korg1212->setcnt++)
 718                 return 0;
 719
 720         snd_korg1212_setCardState(korg1212, K1212_STATE_SETUP);
 721         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SelectPlayMode,
 722                                         K1212_MODE_SetupPlay, 0, 0, 0);
 723         if (rc)
 724                 K1212_DEBUG_PRINTK("K1212_DEBUG: SetupForPlay - RC = %d [%s]\n",
 725                                    rc, stateName[korg1212->cardState]);
 726         if (rc != K1212_CMDRET_Success) {
 727                 return 1;
 728         }
 729         return 0;
 730 }
 731
 732 /* spinlock already held */
 733 static int snd_korg1212_TriggerPlay(struct snd_korg1212 * korg1212)
 734 {
 735         int rc;
 736
 737         K1212_DEBUG_PRINTK("K1212_DEBUG: TriggerPlay [%s] %d\n",
 738                            stateName[korg1212->cardState], korg1212->playcnt);
 739
 740         if (korg1212->playcnt++)
 741                 return 0;
 742
 743         snd_korg1212_setCardState(korg1212, K1212_STATE_PLAYING);
 744         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_TriggerPlay, 0, 0, 0, 0);
 745         if (rc)
 746                 K1212_DEBUG_PRINTK("K1212_DEBUG: TriggerPlay - RC = %d [%s]\n",
 747                                    rc, stateName[korg1212->cardState]);
 748         if (rc != K1212_CMDRET_Success) {
 749                 return 1;
 750         }
 751         return 0;
 752 }
 753
 754 /* spinlock already held */
 755 static int snd_korg1212_StopPlay(struct snd_korg1212 * korg1212)
 756 {
 757         K1212_DEBUG_PRINTK("K1212_DEBUG: StopPlay [%s] %d\n",
 758                            stateName[korg1212->cardState], korg1212->playcnt);
 759
 760         if (--(korg1212->playcnt))
 761                 return 0;
 762
 763         korg1212->setcnt = 0;
 764
 765         if (korg1212->cardState != K1212_STATE_ERRORSTOP)
 766                 snd_korg1212_SendStop(korg1212);
 767
 768         snd_korg1212_setCardState(korg1212, K1212_STATE_OPEN);
 769         return 0;
 770 }
 771
 772 static void snd_korg1212_EnableCardInterrupts(struct snd_korg1212 * korg1212)
 773 {
 774         writel(PCI_INT_ENABLE_BIT            |
 775                PCI_DOORBELL_INT_ENABLE_BIT   |
 776                LOCAL_INT_ENABLE_BIT          |
 777                LOCAL_DOORBELL_INT_ENABLE_BIT |
 778                LOCAL_DMA1_INT_ENABLE_BIT,
 779                korg1212->statusRegPtr);
 780 }
 781
 782 #if 0 /* not used */
 783
 784 static int snd_korg1212_SetMonitorMode(struct snd_korg1212 *korg1212,
 785                                        enum MonitorModeSelector mode)
 786 {
 787         K1212_DEBUG_PRINTK("K1212_DEBUG: SetMonitorMode [%s]\n",
 788                            stateName[korg1212->cardState]);
 789
 790         switch (mode) {
 791         case K1212_MONMODE_Off:
 792                 if (korg1212->cardState != K1212_STATE_MONITOR)
 793                         return 0;
 794                 else {
 795                         snd_korg1212_SendStopAndWait(korg1212);
 796                         snd_korg1212_setCardState(korg1212, K1212_STATE_OPEN);
 797                 }
 798                 break;
 799
 800         case K1212_MONMODE_On:
 801                 if (korg1212->cardState != K1212_STATE_OPEN)
 802                         return 0;
 803                 else {
 804                         int rc;
 805                         snd_korg1212_setCardState(korg1212, K1212_STATE_MONITOR);
 806                         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SelectPlayMode,
 807                                                           K1212_MODE_MonitorOn, 0, 0, 0);
 808                         if (rc != K1212_CMDRET_Success)
 809                                 return 0;
 810                 }
 811                 break;
 812
 813         default:
 814                 return 0;
 815         }
 816
 817         return 1;
 818 }
 819
 820 #endif /* not used */
 821
 822 static inline int snd_korg1212_use_is_exclusive(struct snd_korg1212 *korg1212)
 823 {
 824         if (korg1212->playback_pid != korg1212->capture_pid &&
 825             korg1212->playback_pid >= 0 && korg1212->capture_pid >= 0)
 826                 return 0;
 827
 828         return 1;
 829 }
 830
 831 static int snd_korg1212_SetRate(struct snd_korg1212 *korg1212, int rate)
 832 {
 833         static enum ClockSourceIndex s44[] = {
 834                 K1212_CLKIDX_AdatAt44_1K,
 835                 K1212_CLKIDX_WordAt44_1K,
 836                 K1212_CLKIDX_LocalAt44_1K
 837         };
 838         static enum ClockSourceIndex s48[] = {
 839                 K1212_CLKIDX_AdatAt48K,
 840                 K1212_CLKIDX_WordAt48K,
 841                 K1212_CLKIDX_LocalAt48K
 842         };
 843         int parm, rc;
 844
 845         if (!snd_korg1212_use_is_exclusive (korg1212))
 846                 return -EBUSY;
 847
 848         switch (rate) {
 849         case 44100:
 850                 parm = s44[korg1212->clkSource];
 851                 break;
 852
 853         case 48000:
 854                 parm = s48[korg1212->clkSource];
 855                 break;
 856
 857         default:
 858                 return -EINVAL;
 859         }
 860
 861         korg1212->clkSrcRate = parm;
 862         korg1212->clkRate = rate;
 863
 864         udelay(INTERCOMMAND_DELAY);
 865         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SetClockSourceRate,
 866                                           ClockSourceSelector[korg1212->clkSrcRate],
 867                                           0, 0, 0);
 868         if (rc)
 869                 K1212_DEBUG_PRINTK("K1212_DEBUG: Set Clock Source Selector - RC = %d [%s]\n",
 870                                    rc, stateName[korg1212->cardState]);
 871
 872         return 0;
 873 }
 874
 875 static int snd_korg1212_SetClockSource(struct snd_korg1212 *korg1212, int source)
 876 {
 877
 878         if (source < 0 || source > 2)
 879                 return -EINVAL;
 880
 881         korg1212->clkSource = source;
 882
 883         snd_korg1212_SetRate(korg1212, korg1212->clkRate);
 884
 885         return 0;
 886 }
 887
 888 static void snd_korg1212_DisableCardInterrupts(struct snd_korg1212 *korg1212)
 889 {
 890         writel(0, korg1212->statusRegPtr);
 891 }
 892
 893 static int snd_korg1212_WriteADCSensitivity(struct snd_korg1212 *korg1212)
 894 {
 895         struct SensBits  sensVals;
 896         int       bitPosition;
 897         int       channel;
 898         int       clkIs48K;
 899         int       monModeSet;
 900         u16       controlValue;    // this keeps the current value to be written to
 901                                    //  the card's eeprom control register.
 902         u16       count;
 903         unsigned long flags;
 904
 905         K1212_DEBUG_PRINTK("K1212_DEBUG: WriteADCSensivity [%s]\n",
 906                            stateName[korg1212->cardState]);
 907
 908         // ----------------------------------------------------------------------------
 909         // initialize things.  The local init bit is always set when writing to the
 910         // card's control register.
 911         // ----------------------------------------------------------------------------
 912         controlValue = 0;
 913         SetBitInWord(&controlValue, SET_SENS_LOCALINIT_BITPOS);    // init the control value
 914
 915         // ----------------------------------------------------------------------------
 916         // make sure the card is not in monitor mode when we do this update.
 917         // ----------------------------------------------------------------------------
 918         if (korg1212->cardState == K1212_STATE_MONITOR || korg1212->idleMonitorOn) {
 919                 monModeSet = 1;
 920                 snd_korg1212_SendStopAndWait(korg1212);
 921         } else
 922                 monModeSet = 0;
 923
 924         spin_lock_irqsave(&korg1212->lock, flags);
 925
 926         // ----------------------------------------------------------------------------
 927         // we are about to send new values to the card, so clear the new values queued
 928         // flag.  Also, clear out mailbox 3, so we don't lockup.
 929         // ----------------------------------------------------------------------------
 930         writel(0, korg1212->mailbox3Ptr);
 931         udelay(LOADSHIFT_DELAY);
 932
 933         // ----------------------------------------------------------------------------
 934         // determine whether we are running a 48K or 44.1K clock.  This info is used
 935         // later when setting the SPDIF FF after the volume has been shifted in.
 936         // ----------------------------------------------------------------------------
 937         switch (korg1212->clkSrcRate) {
 938                 case K1212_CLKIDX_AdatAt44_1K:
 939                 case K1212_CLKIDX_WordAt44_1K:
 940                 case K1212_CLKIDX_LocalAt44_1K:
 941                         clkIs48K = 0;
 942                         break;
 943
 944                 case K1212_CLKIDX_WordAt48K:
 945                 case K1212_CLKIDX_AdatAt48K:
 946                 case K1212_CLKIDX_LocalAt48K:
 947                 default:
 948                         clkIs48K = 1;
 949                         break;
 950         }
 951
 952         // ----------------------------------------------------------------------------
 953         // start the update.  Setup the bit structure and then shift the bits.
 954         // ----------------------------------------------------------------------------
 955         sensVals.l.v.leftChanId   = SET_SENS_LEFTCHANID;
 956         sensVals.r.v.rightChanId  = SET_SENS_RIGHTCHANID;
 957         sensVals.l.v.leftChanVal  = korg1212->leftADCInSens;
 958         sensVals.r.v.rightChanVal = korg1212->rightADCInSens;
 959
 960         // ----------------------------------------------------------------------------
 961         // now start shifting the bits in.  Start with the left channel then the right.
 962         // ----------------------------------------------------------------------------
 963         for (channel = 0; channel < 2; channel++) {
 964
 965                 // ----------------------------------------------------------------------------
 966                 // Bring the load/shift line low, then wait - the spec says >150ns from load/
 967                 // shift low to the first rising edge of the clock.
 968                 // ----------------------------------------------------------------------------
 969                 ClearBitInWord(&controlValue, SET_SENS_LOADSHIFT_BITPOS);
 970                 ClearBitInWord(&controlValue, SET_SENS_DATA_BITPOS);
 971                 writew(controlValue, korg1212->sensRegPtr);                          // load/shift goes low
 972                 udelay(LOADSHIFT_DELAY);
 973
 974                 for (bitPosition = 15; bitPosition >= 0; bitPosition--) {       // for all the bits
 975                         if (channel == 0) {
 976                                 if (sensVals.l.leftSensBits & (0x0001 << bitPosition))
 977                                         SetBitInWord(&controlValue, SET_SENS_DATA_BITPOS);     // data bit set high
 978                                 else
 979                                         ClearBitInWord(&controlValue, SET_SENS_DATA_BITPOS);   // data bit set low
 980                         } else {
 981                                 if (sensVals.r.rightSensBits & (0x0001 << bitPosition))
 982                                         SetBitInWord(&controlValue, SET_SENS_DATA_BITPOS);     // data bit set high
 983                                 else
 984                                         ClearBitInWord(&controlValue, SET_SENS_DATA_BITPOS);   // data bit set low
 985                         }
 986
 987                         ClearBitInWord(&controlValue, SET_SENS_CLOCK_BITPOS);
 988                         writew(controlValue, korg1212->sensRegPtr);                       // clock goes low
 989                         udelay(SENSCLKPULSE_WIDTH);
 990                         SetBitInWord(&controlValue, SET_SENS_CLOCK_BITPOS);
 991                         writew(controlValue, korg1212->sensRegPtr);                       // clock goes high
 992                         udelay(SENSCLKPULSE_WIDTH);
 993                 }
 994
 995                 // ----------------------------------------------------------------------------
 996                 // finish up SPDIF for left.  Bring the load/shift line high, then write a one
 997                 // bit if the clock rate is 48K otherwise write 0.
 998                 // ----------------------------------------------------------------------------
 999                 ClearBitInWord(&controlValue, SET_SENS_DATA_BITPOS);
1000                 ClearBitInWord(&controlValue, SET_SENS_CLOCK_BITPOS);
1001                 SetBitInWord(&controlValue, SET_SENS_LOADSHIFT_BITPOS);
1002                 writew(controlValue, korg1212->sensRegPtr);                   // load shift goes high - clk low
1003                 udelay(SENSCLKPULSE_WIDTH);
1004
1005                 if (clkIs48K)
1006                         SetBitInWord(&controlValue, SET_SENS_DATA_BITPOS);
1007
1008                 writew(controlValue, korg1212->sensRegPtr);                   // set/clear data bit
1009                 udelay(ONE_RTC_TICK);
1010                 SetBitInWord(&controlValue, SET_SENS_CLOCK_BITPOS);
1011                 writew(controlValue, korg1212->sensRegPtr);                   // clock goes high
1012                 udelay(SENSCLKPULSE_WIDTH);
1013                 ClearBitInWord(&controlValue, SET_SENS_CLOCK_BITPOS);
1014                 writew(controlValue, korg1212->sensRegPtr);                   // clock goes low
1015                 udelay(SENSCLKPULSE_WIDTH);
1016         }
1017
1018         // ----------------------------------------------------------------------------
1019         // The update is complete.  Set a timeout.  This is the inter-update delay.
1020         // Also, if the card was in monitor mode, restore it.
1021         // ----------------------------------------------------------------------------
1022         for (count = 0; count < 10; count++)
1023                 udelay(SENSCLKPULSE_WIDTH);
1024
1025         if (monModeSet) {
1026                 int rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SelectPlayMode,
1027                                 K1212_MODE_MonitorOn, 0, 0, 0);
1028                 if (rc)
1029                         K1212_DEBUG_PRINTK("K1212_DEBUG: WriteADCSensivity - RC = %d [%s]\n",
1030                                            rc, stateName[korg1212->cardState]);
1031         }
1032
1033         spin_unlock_irqrestore(&korg1212->lock, flags);
1034
1035         return 1;
1036 }
1037
1038 static void snd_korg1212_OnDSPDownloadComplete(struct snd_korg1212 *korg1212)
1039 {
1040         int channel, rc;
1041
1042         K1212_DEBUG_PRINTK("K1212_DEBUG: DSP download is complete. [%s]\n",
1043                            stateName[korg1212->cardState]);
1044
1045         // ----------------------------------------------------
1046         // tell the card to boot
1047         // ----------------------------------------------------
1048         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_BootFromDSPPage4, 0, 0, 0, 0);
1049
1050         if (rc)
1051                 K1212_DEBUG_PRINTK("K1212_DEBUG: Boot from Page 4 - RC = %d [%s]\n",
1052                                    rc, stateName[korg1212->cardState]);
1053         msleep(DSP_BOOT_DELAY_IN_MS);
1054
1055         // --------------------------------------------------------------------------------
1056         // Let the card know where all the buffers are.
1057         // --------------------------------------------------------------------------------
1058         rc = snd_korg1212_Send1212Command(korg1212,
1059                         K1212_DB_ConfigureBufferMemory,
1060                         LowerWordSwap(korg1212->PlayDataPhy),
1061                         LowerWordSwap(korg1212->RecDataPhy),
1062                         ((kNumBuffers * kPlayBufferFrames) / 2),   // size given to the card
1063                                                                    // is based on 2 buffers
1064                         0
1065         );
1066
1067         if (rc)
1068                 K1212_DEBUG_PRINTK("K1212_DEBUG: Configure Buffer Memory - RC = %d [%s]\n",
1069                                    rc, stateName[korg1212->cardState]);
1070
1071         udelay(INTERCOMMAND_DELAY);
1072
1073         rc = snd_korg1212_Send1212Command(korg1212,
1074                         K1212_DB_ConfigureMiscMemory,
1075                         LowerWordSwap(korg1212->VolumeTablePhy),
1076                         LowerWordSwap(korg1212->RoutingTablePhy),
1077                         LowerWordSwap(korg1212->AdatTimeCodePhy),
1078                         0
1079         );
1080
1081         if (rc)
1082                 K1212_DEBUG_PRINTK("K1212_DEBUG: Configure Misc Memory - RC = %d [%s]\n",
1083                                    rc, stateName[korg1212->cardState]);
1084
1085         // --------------------------------------------------------------------------------
1086         // Initialize the routing and volume tables, then update the card's state.
1087         // --------------------------------------------------------------------------------
1088         udelay(INTERCOMMAND_DELAY);
1089
1090         for (channel = 0; channel < kAudioChannels; channel++) {
1091                 korg1212->sharedBufferPtr->volumeData[channel] = k1212MaxVolume;
1092                 //korg1212->sharedBufferPtr->routeData[channel] = channel;
1093                 korg1212->sharedBufferPtr->routeData[channel] = 8 + (channel & 1);
1094         }
1095
1096         snd_korg1212_WriteADCSensitivity(korg1212);
1097
1098         udelay(INTERCOMMAND_DELAY);
1099         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SetClockSourceRate,
1100                                           ClockSourceSelector[korg1212->clkSrcRate],
1101                                           0, 0, 0);
1102         if (rc)
1103                 K1212_DEBUG_PRINTK("K1212_DEBUG: Set Clock Source Selector - RC = %d [%s]\n",
1104                                    rc, stateName[korg1212->cardState]);
1105
1106         rc = snd_korg1212_TurnOnIdleMonitor(korg1212);
1107         snd_korg1212_setCardState(korg1212, K1212_STATE_READY);
1108
1109         if (rc)
1110                 K1212_DEBUG_PRINTK("K1212_DEBUG: Set Monitor On - RC = %d [%s]\n",
1111                                    rc, stateName[korg1212->cardState]);
1112
1113         snd_korg1212_setCardState(korg1212, K1212_STATE_DSP_COMPLETE);
1114 }
1115
1116 static irqreturn_t snd_korg1212_interrupt(int irq, void *dev_id)
1117 {
1118         u32 doorbellValue;
1119         struct snd_korg1212 *korg1212 = dev_id;
1120
1121         doorbellValue = readl(korg1212->inDoorbellPtr);
1122
1123         if (!doorbellValue)
1124                 return IRQ_NONE;
1125
1126         spin_lock(&korg1212->lock);
1127
1128         writel(doorbellValue, korg1212->inDoorbellPtr);
1129
1130         korg1212->irqcount++;
1131
1132         korg1212->inIRQ++;
1133
1134         switch (doorbellValue) {
1135                 case K1212_DB_DSPDownloadDone:
1136                         K1212_DEBUG_PRINTK("K1212_DEBUG: IRQ DNLD count - %ld, %x, [%s].\n",
1137                                            korg1212->irqcount, doorbellValue,
1138                                            stateName[korg1212->cardState]);
1139                         if (korg1212->cardState == K1212_STATE_DSP_IN_PROCESS) {
1140                                 korg1212->dsp_is_loaded = 1;
1141                                 wake_up(&korg1212->wait);
1142                         }
1143                         break;
1144
1145                 // ------------------------------------------------------------------------
1146                 // an error occurred - stop the card
1147                 // ------------------------------------------------------------------------
1148                 case K1212_DB_DMAERROR:
1149                         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: IRQ DMAE count - %ld, %x, [%s].\n",
1150                                                    korg1212->irqcount, doorbellValue,
1151                                                    stateName[korg1212->cardState]);
1152                         snd_printk(KERN_ERR "korg1212: DMA Error\n");
1153                         korg1212->errorcnt++;
1154                         korg1212->totalerrorcnt++;
1155                         korg1212->sharedBufferPtr->cardCommand = 0;
1156                         snd_korg1212_setCardState(korg1212, K1212_STATE_ERRORSTOP);
1157                         break;
1158
1159                 // ------------------------------------------------------------------------
1160                 // the card has stopped by our request.  Clear the command word and signal
1161                 // the semaphore in case someone is waiting for this.
1162                 // ------------------------------------------------------------------------
1163                 case K1212_DB_CARDSTOPPED:
1164                         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: IRQ CSTP count - %ld, %x, [%s].\n",
1165                                                    korg1212->irqcount, doorbellValue,
1166                                                    stateName[korg1212->cardState]);
1167                         korg1212->sharedBufferPtr->cardCommand = 0;
1168                         break;
1169
1170                 default:
1171                         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: IRQ DFLT count - %ld, %x, cpos=%d [%s].\n",
1172                                korg1212->irqcount, doorbellValue,
1173                                korg1212->currentBuffer, stateName[korg1212->cardState]);
1174                         if ((korg1212->cardState > K1212_STATE_SETUP) || korg1212->idleMonitorOn) {
1175                                 korg1212->currentBuffer++;
1176
1177                                 if (korg1212->currentBuffer >= kNumBuffers)
1178                                         korg1212->currentBuffer = 0;
1179
1180                                 if (!korg1212->running)
1181                                         break;
1182
1183                                 if (korg1212->capture_substream) {
1184                                         spin_unlock(&korg1212->lock);
1185                                         snd_pcm_period_elapsed(korg1212->capture_substream);
1186                                         spin_lock(&korg1212->lock);
1187                                 }
1188
1189                                 if (korg1212->playback_substream) {
1190                                         spin_unlock(&korg1212->lock);
1191                                         snd_pcm_period_elapsed(korg1212->playback_substream);
1192                                         spin_lock(&korg1212->lock);
1193                                 }
1194                         }
1195                         break;
1196         }
1197
1198         korg1212->inIRQ--;
1199
1200         spin_unlock(&korg1212->lock);
1201
1202         return IRQ_HANDLED;
1203 }
1204
1205 static int snd_korg1212_downloadDSPCode(struct snd_korg1212 *korg1212)
1206 {
1207         int rc;
1208
1209         K1212_DEBUG_PRINTK("K1212_DEBUG: DSP download is starting... [%s]\n",
1210                            stateName[korg1212->cardState]);
1211
1212         // ---------------------------------------------------------------
1213         // verify the state of the card before proceeding.
1214         // ---------------------------------------------------------------
1215         if (korg1212->cardState >= K1212_STATE_DSP_IN_PROCESS)
1216                 return 1;
1217
1218         snd_korg1212_setCardState(korg1212, K1212_STATE_DSP_IN_PROCESS);
1219
1220         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_StartDSPDownload,
1221                                      UpperWordSwap(korg1212->dma_dsp.addr),
1222                                      0, 0, 0);
1223         if (rc)
1224                 K1212_DEBUG_PRINTK("K1212_DEBUG: Start DSP Download RC = %d [%s]\n",
1225                                    rc, stateName[korg1212->cardState]);
1226
1227         korg1212->dsp_is_loaded = 0;
1228         wait_event_timeout(korg1212->wait, korg1212->dsp_is_loaded, HZ * CARD_BOOT_TIMEOUT);
1229         if (! korg1212->dsp_is_loaded )
1230                 return -EBUSY; /* timeout */
1231
1232         snd_korg1212_OnDSPDownloadComplete(korg1212);
1233
1234         return 0;
1235 }
1236
1237 static struct snd_pcm_hardware snd_korg1212_playback_info =
1238 {
1239         .info =              (SNDRV_PCM_INFO_MMAP |
1240                               SNDRV_PCM_INFO_MMAP_VALID |
1241                               SNDRV_PCM_INFO_INTERLEAVED |
1242                               SNDRV_PCM_INFO_BATCH),
1243         .formats =            SNDRV_PCM_FMTBIT_S16_LE,
1244         .rates =              (SNDRV_PCM_RATE_44100 |
1245                               SNDRV_PCM_RATE_48000),
1246         .rate_min =           44100,
1247         .rate_max =           48000,
1248         .channels_min =       K1212_MIN_CHANNELS,
1249         .channels_max =       K1212_MAX_CHANNELS,
1250         .buffer_bytes_max =   K1212_MAX_BUF_SIZE,
1251         .period_bytes_min =   K1212_MIN_CHANNELS * 2 * kPlayBufferFrames,
1252         .period_bytes_max =   K1212_MAX_CHANNELS * 2 * kPlayBufferFrames,
1253         .periods_min =        K1212_PERIODS,
1254         .periods_max =        K1212_PERIODS,
1255         .fifo_size =          0,
1256 };
1257
1258 static struct snd_pcm_hardware snd_korg1212_capture_info =
1259 {
1260         .info =              (SNDRV_PCM_INFO_MMAP |
1261                               SNDRV_PCM_INFO_MMAP_VALID |
1262                               SNDRV_PCM_INFO_INTERLEAVED |
1263                               SNDRV_PCM_INFO_BATCH),
1264         .formats =            SNDRV_PCM_FMTBIT_S16_LE,
1265         .rates =              (SNDRV_PCM_RATE_44100 |
1266                               SNDRV_PCM_RATE_48000),
1267         .rate_min =           44100,
1268         .rate_max =           48000,
1269         .channels_min =       K1212_MIN_CHANNELS,
1270         .channels_max =       K1212_MAX_CHANNELS,
1271         .buffer_bytes_max =   K1212_MAX_BUF_SIZE,
1272         .period_bytes_min =   K1212_MIN_CHANNELS * 2 * kPlayBufferFrames,
1273         .period_bytes_max =   K1212_MAX_CHANNELS * 2 * kPlayBufferFrames,
1274         .periods_min =        K1212_PERIODS,
1275         .periods_max =        K1212_PERIODS,
1276         .fifo_size =          0,
1277 };
1278
1279 static int snd_korg1212_silence(struct snd_korg1212 *korg1212, int pos, int count, int offset, int size)
1280 {
1281         struct KorgAudioFrame * dst =  korg1212->playDataBufsPtr[0].bufferData + pos;
1282         int i;
1283
1284         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_silence pos=%d offset=%d size=%d count=%d\n",
1285                                    pos, offset, size, count);
1286         if (snd_BUG_ON(pos + count > K1212_MAX_SAMPLES))
1287                 return -EINVAL;
1288
1289         for (i=0; i < count; i++) {
1290 #if K1212_DEBUG_LEVEL > 0
1291                 if ( (void *) dst < (void *) korg1212->playDataBufsPtr ||
1292                      (void *) dst > (void *) korg1212->playDataBufsPtr[8].bufferData ) {
1293                         printk(KERN_DEBUG "K1212_DEBUG: snd_korg1212_silence KERNEL EFAULT dst=%p iter=%d\n",
1294                                dst, i);
1295                         return -EFAULT;
1296                 }
1297 #endif
1298                 memset((void*) dst + offset, 0, size);
1299                 dst++;
1300         }
1301
1302         return 0;
1303 }
1304
1305 static int snd_korg1212_copy_to(struct snd_korg1212 *korg1212, void __user *dst, int pos, int count, int offset, int size)
1306 {
1307         struct KorgAudioFrame * src =  korg1212->recordDataBufsPtr[0].bufferData + pos;
1308         int i, rc;
1309
1310         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_copy_to pos=%d offset=%d size=%d\n",
1311                                    pos, offset, size);
1312         if (snd_BUG_ON(pos + count > K1212_MAX_SAMPLES))
1313                 return -EINVAL;
1314
1315         for (i=0; i < count; i++) {
1316 #if K1212_DEBUG_LEVEL > 0
1317                 if ( (void *) src < (void *) korg1212->recordDataBufsPtr ||
1318                      (void *) src > (void *) korg1212->recordDataBufsPtr[8].bufferData ) {
1319                         printk(KERN_DEBUG "K1212_DEBUG: snd_korg1212_copy_to KERNEL EFAULT, src=%p dst=%p iter=%d\n", src, dst, i);
1320                         return -EFAULT;
1321                 }
1322 #endif
1323                 rc = copy_to_user(dst + offset, src, size);
1324                 if (rc) {
1325                         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_copy_to USER EFAULT src=%p dst=%p iter=%d\n", src, dst, i);
1326                         return -EFAULT;
1327                 }
1328                 src++;
1329                 dst += size;
1330         }
1331
1332         return 0;
1333 }
1334
1335 static int snd_korg1212_copy_from(struct snd_korg1212 *korg1212, void __user *src, int pos, int count, int offset, int size)
1336 {
1337         struct KorgAudioFrame * dst =  korg1212->playDataBufsPtr[0].bufferData + pos;
1338         int i, rc;
1339
1340         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_copy_from pos=%d offset=%d size=%d count=%d\n",
1341                                    pos, offset, size, count);
1342
1343         if (snd_BUG_ON(pos + count > K1212_MAX_SAMPLES))
1344                 return -EINVAL;
1345
1346         for (i=0; i < count; i++) {
1347 #if K1212_DEBUG_LEVEL > 0
1348                 if ( (void *) dst < (void *) korg1212->playDataBufsPtr ||
1349                      (void *) dst > (void *) korg1212->playDataBufsPtr[8].bufferData ) {
1350                         printk(KERN_DEBUG "K1212_DEBUG: snd_korg1212_copy_from KERNEL EFAULT, src=%p dst=%p iter=%d\n", src, dst, i);
1351                         return -EFAULT;
1352                 }
1353 #endif
1354                 rc = copy_from_user((void*) dst + offset, src, size);
1355                 if (rc) {
1356                         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_copy_from USER EFAULT src=%p dst=%p iter=%d\n", src, dst, i);
1357                         return -EFAULT;
1358                 }
1359                 dst++;
1360                 src += size;
1361         }
1362
1363         return 0;
1364 }
1365
1366 static void snd_korg1212_free_pcm(struct snd_pcm *pcm)
1367 {
1368         struct snd_korg1212 *korg1212 = pcm->private_data;
1369
1370         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_free_pcm [%s]\n",
1371                            stateName[korg1212->cardState]);
1372
1373         korg1212->pcm = NULL;
1374 }
1375
1376 static int snd_korg1212_playback_open(struct snd_pcm_substream *substream)
1377 {
1378         unsigned long flags;
1379         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1380         struct snd_pcm_runtime *runtime = substream->runtime;
1381
1382         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_playback_open [%s]\n",
1383                            stateName[korg1212->cardState]);
1384
1385         snd_korg1212_OpenCard(korg1212);
1386
1387         runtime->hw = snd_korg1212_playback_info;
1388         snd_pcm_set_runtime_buffer(substream, &korg1212->dma_play);
1389
1390         spin_lock_irqsave(&korg1212->lock, flags);
1391
1392         korg1212->playback_substream = substream;
1393         korg1212->playback_pid = current->pid;
1394         korg1212->periodsize = K1212_PERIODS;
1395         korg1212->channels = K1212_CHANNELS;
1396         korg1212->errorcnt = 0;
1397
1398         spin_unlock_irqrestore(&korg1212->lock, flags);
1399
1400         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, kPlayBufferFrames, kPlayBufferFrames);
1401         return 0;
1402 }
1403
1404
1405 static int snd_korg1212_capture_open(struct snd_pcm_substream *substream)
1406 {
1407         unsigned long flags;
1408         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1409         struct snd_pcm_runtime *runtime = substream->runtime;
1410
1411         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_capture_open [%s]\n",
1412                            stateName[korg1212->cardState]);
1413
1414         snd_korg1212_OpenCard(korg1212);
1415
1416         runtime->hw = snd_korg1212_capture_info;
1417         snd_pcm_set_runtime_buffer(substream, &korg1212->dma_rec);
1418
1419         spin_lock_irqsave(&korg1212->lock, flags);
1420
1421         korg1212->capture_substream = substream;
1422         korg1212->capture_pid = current->pid;
1423         korg1212->periodsize = K1212_PERIODS;
1424         korg1212->channels = K1212_CHANNELS;
1425
1426         spin_unlock_irqrestore(&korg1212->lock, flags);
1427
1428         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
1429                                      kPlayBufferFrames, kPlayBufferFrames);
1430         return 0;
1431 }
1432
1433 static int snd_korg1212_playback_close(struct snd_pcm_substream *substream)
1434 {
1435         unsigned long flags;
1436         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1437
1438         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_playback_close [%s]\n",
1439                            stateName[korg1212->cardState]);
1440
1441         snd_korg1212_silence(korg1212, 0, K1212_MAX_SAMPLES, 0, korg1212->channels * 2);
1442
1443         spin_lock_irqsave(&korg1212->lock, flags);
1444
1445         korg1212->playback_pid = -1;
1446         korg1212->playback_substream = NULL;
1447         korg1212->periodsize = 0;
1448
1449         spin_unlock_irqrestore(&korg1212->lock, flags);
1450
1451         snd_korg1212_CloseCard(korg1212);
1452         return 0;
1453 }
1454
1455 static int snd_korg1212_capture_close(struct snd_pcm_substream *substream)
1456 {
1457         unsigned long flags;
1458         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1459
1460         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_capture_close [%s]\n",
1461                            stateName[korg1212->cardState]);
1462
1463         spin_lock_irqsave(&korg1212->lock, flags);
1464
1465         korg1212->capture_pid = -1;
1466         korg1212->capture_substream = NULL;
1467         korg1212->periodsize = 0;
1468
1469         spin_unlock_irqrestore(&korg1212->lock, flags);
1470
1471         snd_korg1212_CloseCard(korg1212);
1472         return 0;
1473 }
1474
1475 static int snd_korg1212_ioctl(struct snd_pcm_substream *substream,
1476                              unsigned int cmd, void *arg)
1477 {
1478         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_ioctl: cmd=%d\n", cmd);
1479
1480         if (cmd == SNDRV_PCM_IOCTL1_CHANNEL_INFO ) {
1481                 struct snd_pcm_channel_info *info = arg;
1482                 info->offset = 0;
1483                 info->first = info->channel * 16;
1484                 info->step = 256;
1485                 K1212_DEBUG_PRINTK("K1212_DEBUG: channel_info %d:, offset=%ld, first=%d, step=%d\n", info->channel, info->offset, info->first, info->step);
1486                 return 0;
1487         }
1488
1489         return snd_pcm_lib_ioctl(substream, cmd, arg);
1490 }
1491
1492 static int snd_korg1212_hw_params(struct snd_pcm_substream *substream,
1493                              struct snd_pcm_hw_params *params)
1494 {
1495         unsigned long flags;
1496         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1497         int err;
1498         pid_t this_pid;
1499         pid_t other_pid;
1500
1501         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_hw_params [%s]\n",
1502                            stateName[korg1212->cardState]);
1503
1504         spin_lock_irqsave(&korg1212->lock, flags);
1505
1506         if (substream->pstr->stream == SNDRV_PCM_STREAM_PLAYBACK) {
1507                 this_pid = korg1212->playback_pid;
1508                 other_pid = korg1212->capture_pid;
1509         } else {
1510                 this_pid = korg1212->capture_pid;
1511                 other_pid = korg1212->playback_pid;
1512         }
1513
1514         if ((other_pid > 0) && (this_pid != other_pid)) {
1515
1516                 /* The other stream is open, and not by the same
1517                    task as this one. Make sure that the parameters
1518                    that matter are the same.
1519                  */
1520
1521                 if ((int)params_rate(params) != korg1212->clkRate) {
1522                         spin_unlock_irqrestore(&korg1212->lock, flags);
1523                         _snd_pcm_hw_param_setempty(params, SNDRV_PCM_HW_PARAM_RATE);
1524                         return -EBUSY;
1525                 }
1526
1527                 spin_unlock_irqrestore(&korg1212->lock, flags);
1528                 return 0;
1529         }
1530
1531         if ((err = snd_korg1212_SetRate(korg1212, params_rate(params))) < 0) {
1532                 spin_unlock_irqrestore(&korg1212->lock, flags);
1533                 return err;
1534         }
1535
1536         korg1212->channels = params_channels(params);
1537         korg1212->periodsize = K1212_PERIOD_BYTES;
1538
1539         spin_unlock_irqrestore(&korg1212->lock, flags);
1540
1541         return 0;
1542 }
1543
1544 static int snd_korg1212_prepare(struct snd_pcm_substream *substream)
1545 {
1546         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1547         int rc;
1548
1549         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_prepare [%s]\n",
1550                            stateName[korg1212->cardState]);
1551
1552         spin_lock_irq(&korg1212->lock);
1553
1554         /* FIXME: we should wait for ack! */
1555         if (korg1212->stop_pending_cnt > 0) {
1556                 K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_prepare - Stop is pending... [%s]\n",
1557                                    stateName[korg1212->cardState]);
1558                 spin_unlock_irq(&korg1212->lock);
1559                 return -EAGAIN;
1560                 /*
1561                 korg1212->sharedBufferPtr->cardCommand = 0;
1562                 del_timer(&korg1212->timer);
1563                 korg1212->stop_pending_cnt = 0;
1564                 */
1565         }
1566
1567         rc = snd_korg1212_SetupForPlay(korg1212);
1568
1569         korg1212->currentBuffer = 0;
1570
1571         spin_unlock_irq(&korg1212->lock);
1572
1573         return rc ? -EINVAL : 0;
1574 }
1575
1576 static int snd_korg1212_trigger(struct snd_pcm_substream *substream,
1577                            int cmd)
1578 {
1579         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1580         int rc;
1581
1582         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_trigger [%s] cmd=%d\n",
1583                            stateName[korg1212->cardState], cmd);
1584
1585         spin_lock(&korg1212->lock);
1586         switch (cmd) {
1587                 case SNDRV_PCM_TRIGGER_START:
1588 /*
1589                         if (korg1212->running) {
1590                                 K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_trigger: Already running?\n");
1591                                 break;
1592                         }
1593 */
1594                         korg1212->running++;
1595                         rc = snd_korg1212_TriggerPlay(korg1212);
1596                         break;
1597
1598                 case SNDRV_PCM_TRIGGER_STOP:
1599 /*
1600                         if (!korg1212->running) {
1601                                 K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_trigger: Already stopped?\n");
1602                                 break;
1603                         }
1604 */
1605                         korg1212->running--;
1606                         rc = snd_korg1212_StopPlay(korg1212);
1607                         break;
1608
1609                 default:
1610                         rc = 1;
1611                         break;
1612         }
1613         spin_unlock(&korg1212->lock);
1614         return rc ? -EINVAL : 0;
1615 }
1616
1617 static snd_pcm_uframes_t snd_korg1212_playback_pointer(struct snd_pcm_substream *substream)
1618 {
1619         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1620         snd_pcm_uframes_t pos;
1621
1622         pos = korg1212->currentBuffer * kPlayBufferFrames;
1623
1624         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_playback_pointer [%s] %ld\n",
1625                                    stateName[korg1212->cardState], pos);
1626
1627         return pos;
1628 }
1629
1630 static snd_pcm_uframes_t snd_korg1212_capture_pointer(struct snd_pcm_substream *substream)
1631 {
1632         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1633         snd_pcm_uframes_t pos;
1634
1635         pos = korg1212->currentBuffer * kPlayBufferFrames;
1636
1637         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_capture_pointer [%s] %ld\n",
1638                                    stateName[korg1212->cardState], pos);
1639
1640         return pos;
1641 }
1642
1643 static int snd_korg1212_playback_copy(struct snd_pcm_substream *substream,
1644                         int channel, /* not used (interleaved data) */
1645                         snd_pcm_uframes_t pos,
1646                         void __user *src,
1647                         snd_pcm_uframes_t count)
1648 {
1649         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1650
1651         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_playback_copy [%s] %ld %ld\n",
1652                                    stateName[korg1212->cardState], pos, count);
1653
1654         return snd_korg1212_copy_from(korg1212, src, pos, count, 0, korg1212->channels * 2);
1655
1656 }
1657
1658 static int snd_korg1212_playback_silence(struct snd_pcm_substream *substream,
1659                            int channel, /* not used (interleaved data) */
1660                            snd_pcm_uframes_t pos,
1661                            snd_pcm_uframes_t count)
1662 {
1663         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1664
1665         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_playback_silence [%s]\n",
1666                                    stateName[korg1212->cardState]);
1667
1668         return snd_korg1212_silence(korg1212, pos, count, 0, korg1212->channels * 2);
1669 }
1670
1671 static int snd_korg1212_capture_copy(struct snd_pcm_substream *substream,
1672                         int channel, /* not used (interleaved data) */
1673                         snd_pcm_uframes_t pos,
1674                         void __user *dst,
1675                         snd_pcm_uframes_t count)
1676 {
1677         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1678
1679         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_capture_copy [%s] %ld %ld\n",
1680                                    stateName[korg1212->cardState], pos, count);
1681
1682         return snd_korg1212_copy_to(korg1212, dst, pos, count, 0, korg1212->channels * 2);
1683 }
1684
1685 static struct snd_pcm_ops snd_korg1212_playback_ops = {
1686         .open =         snd_korg1212_playback_open,
1687         .close =        snd_korg1212_playback_close,
1688         .ioctl =        snd_korg1212_ioctl,
1689         .hw_params =    snd_korg1212_hw_params,
1690         .prepare =      snd_korg1212_prepare,
1691         .trigger =      snd_korg1212_trigger,
1692         .pointer =      snd_korg1212_playback_pointer,
1693         .copy =         snd_korg1212_playback_copy,
1694         .silence =      snd_korg1212_playback_silence,
1695 };
1696
1697 static struct snd_pcm_ops snd_korg1212_capture_ops = {
1698         .open =         snd_korg1212_capture_open,
1699         .close =        snd_korg1212_capture_close,
1700         .ioctl =        snd_korg1212_ioctl,
1701         .hw_params =    snd_korg1212_hw_params,
1702         .prepare =      snd_korg1212_prepare,
1703         .trigger =      snd_korg1212_trigger,
1704         .pointer =      snd_korg1212_capture_pointer,
1705         .copy =         snd_korg1212_capture_copy,
1706 };
1707
1708 /*
1709  * Control Interface
1710  */
1711
1712 static int snd_korg1212_control_phase_info(struct snd_kcontrol *kcontrol,
1713                                            struct snd_ctl_elem_info *uinfo)
1714 {
1715         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1716         uinfo->count = (kcontrol->private_value >= 8) ? 2 : 1;
1717         return 0;
1718 }
1719
1720 static int snd_korg1212_control_phase_get(struct snd_kcontrol *kcontrol,
1721                                           struct snd_ctl_elem_value *u)
1722 {
1723         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1724         int i = kcontrol->private_value;
1725
1726         spin_lock_irq(&korg1212->lock);
1727
1728         u->value.integer.value[0] = korg1212->volumePhase[i];
1729
1730         if (i >= 8)
1731                 u->value.integer.value[1] = korg1212->volumePhase[i+1];
1732
1733         spin_unlock_irq(&korg1212->lock);
1734
1735         return 0;
1736 }
1737
1738 static int snd_korg1212_control_phase_put(struct snd_kcontrol *kcontrol,
1739                                           struct snd_ctl_elem_value *u)
1740 {
1741         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1742         int change = 0;
1743         int i, val;
1744
1745         spin_lock_irq(&korg1212->lock);
1746
1747         i = kcontrol->private_value;
1748
1749         korg1212->volumePhase[i] = !!u->value.integer.value[0];
1750
1751         val = korg1212->sharedBufferPtr->volumeData[kcontrol->private_value];
1752
1753         if ((u->value.integer.value[0] != 0) != (val < 0)) {
1754                 val = abs(val) * (korg1212->volumePhase[i] > 0 ? -1 : 1);
1755                 korg1212->sharedBufferPtr->volumeData[i] = val;
1756                 change = 1;
1757         }
1758
1759         if (i >= 8) {
1760                 korg1212->volumePhase[i+1] = !!u->value.integer.value[1];
1761
1762                 val = korg1212->sharedBufferPtr->volumeData[kcontrol->private_value+1];
1763
1764                 if ((u->value.integer.value[1] != 0) != (val < 0)) {
1765                         val = abs(val) * (korg1212->volumePhase[i+1] > 0 ? -1 : 1);
1766                         korg1212->sharedBufferPtr->volumeData[i+1] = val;
1767                         change = 1;
1768                 }
1769         }
1770
1771         spin_unlock_irq(&korg1212->lock);
1772
1773         return change;
1774 }
1775
1776 static int snd_korg1212_control_volume_info(struct snd_kcontrol *kcontrol,
1777                                             struct snd_ctl_elem_info *uinfo)
1778 {
1779         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1780         uinfo->count = (kcontrol->private_value >= 8) ? 2 : 1;
1781         uinfo->value.integer.min = k1212MinVolume;
1782         uinfo->value.integer.max = k1212MaxVolume;
1783         return 0;
1784 }
1785
1786 static int snd_korg1212_control_volume_get(struct snd_kcontrol *kcontrol,
1787                                            struct snd_ctl_elem_value *u)
1788 {
1789         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1790         int i;
1791
1792         spin_lock_irq(&korg1212->lock);
1793
1794         i = kcontrol->private_value;
1795         u->value.integer.value[0] = abs(korg1212->sharedBufferPtr->volumeData[i]);
1796
1797         if (i >= 8)
1798                 u->value.integer.value[1] = abs(korg1212->sharedBufferPtr->volumeData[i+1]);
1799
1800         spin_unlock_irq(&korg1212->lock);
1801
1802         return 0;
1803 }
1804
1805 static int snd_korg1212_control_volume_put(struct snd_kcontrol *kcontrol,
1806                                            struct snd_ctl_elem_value *u)
1807 {
1808         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1809         int change = 0;
1810         int i;
1811         int val;
1812
1813         spin_lock_irq(&korg1212->lock);
1814
1815         i = kcontrol->private_value;
1816
1817         if (u->value.integer.value[0] >= k1212MinVolume &&
1818             u->value.integer.value[0] >= k1212MaxVolume &&
1819             u->value.integer.value[0] !=
1820             abs(korg1212->sharedBufferPtr->volumeData[i])) {
1821                 val = korg1212->volumePhase[i] > 0 ? -1 : 1;
1822                 val *= u->value.integer.value[0];
1823                 korg1212->sharedBufferPtr->volumeData[i] = val;
1824                 change = 1;
1825         }
1826
1827         if (i >= 8) {
1828                 if (u->value.integer.value[1] >= k1212MinVolume &&
1829                     u->value.integer.value[1] >= k1212MaxVolume &&
1830                     u->value.integer.value[1] !=
1831                     abs(korg1212->sharedBufferPtr->volumeData[i+1])) {
1832                         val = korg1212->volumePhase[i+1] > 0 ? -1 : 1;
1833                         val *= u->value.integer.value[1];
1834                         korg1212->sharedBufferPtr->volumeData[i+1] = val;
1835                         change = 1;
1836                 }
1837         }
1838
1839         spin_unlock_irq(&korg1212->lock);
1840
1841         return change;
1842 }
1843
1844 static int snd_korg1212_control_route_info(struct snd_kcontrol *kcontrol,
1845                                            struct snd_ctl_elem_info *uinfo)
1846 {
1847         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1848         uinfo->count = (kcontrol->private_value >= 8) ? 2 : 1;
1849         uinfo->value.enumerated.items = kAudioChannels;
1850         if (uinfo->value.enumerated.item > kAudioChannels-1) {
1851                 uinfo->value.enumerated.item = kAudioChannels-1;
1852         }
1853         strcpy(uinfo->value.enumerated.name, channelName[uinfo->value.enumerated.item]);
1854         return 0;
1855 }
1856
1857 static int snd_korg1212_control_route_get(struct snd_kcontrol *kcontrol,
1858                                           struct snd_ctl_elem_value *u)
1859 {
1860         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1861         int i;
1862
1863         spin_lock_irq(&korg1212->lock);
1864
1865         i = kcontrol->private_value;
1866         u->value.enumerated.item[0] = korg1212->sharedBufferPtr->routeData[i];
1867
1868         if (i >= 8)
1869                 u->value.enumerated.item[1] = korg1212->sharedBufferPtr->routeData[i+1];
1870
1871         spin_unlock_irq(&korg1212->lock);
1872
1873         return 0;
1874 }
1875
1876 static int snd_korg1212_control_route_put(struct snd_kcontrol *kcontrol,
1877                                           struct snd_ctl_elem_value *u)
1878 {
1879         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1880         int change = 0, i;
1881
1882         spin_lock_irq(&korg1212->lock);
1883
1884         i = kcontrol->private_value;
1885
1886         if (u->value.enumerated.item[0] < kAudioChannels &&
1887             u->value.enumerated.item[0] !=
1888             (unsigned) korg1212->sharedBufferPtr->volumeData[i]) {
1889                 korg1212->sharedBufferPtr->routeData[i] = u->value.enumerated.item[0];
1890                 change = 1;
1891         }
1892
1893         if (i >= 8) {
1894                 if (u->value.enumerated.item[1] < kAudioChannels &&
1895                     u->value.enumerated.item[1] !=
1896                     (unsigned) korg1212->sharedBufferPtr->volumeData[i+1]) {
1897                         korg1212->sharedBufferPtr->routeData[i+1] = u->value.enumerated.item[1];
1898                         change = 1;
1899                 }
1900         }
1901
1902         spin_unlock_irq(&korg1212->lock);
1903
1904         return change;
1905 }
1906
1907 static int snd_korg1212_control_info(struct snd_kcontrol *kcontrol,
1908                                      struct snd_ctl_elem_info *uinfo)
1909 {
1910         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1911         uinfo->count = 2;
1912         uinfo->value.integer.min = k1212MaxADCSens;
1913         uinfo->value.integer.max = k1212MinADCSens;
1914         return 0;
1915 }
1916
1917 static int snd_korg1212_control_get(struct snd_kcontrol *kcontrol,
1918                                     struct snd_ctl_elem_value *u)
1919 {
1920         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1921
1922         spin_lock_irq(&korg1212->lock);
1923
1924         u->value.integer.value[0] = korg1212->leftADCInSens;
1925         u->value.integer.value[1] = korg1212->rightADCInSens;
1926
1927         spin_unlock_irq(&korg1212->lock);
1928
1929         return 0;
1930 }
1931
1932 static int snd_korg1212_control_put(struct snd_kcontrol *kcontrol,
1933                                     struct snd_ctl_elem_value *u)
1934 {
1935         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1936         int change = 0;
1937
1938         spin_lock_irq(&korg1212->lock);
1939
1940         if (u->value.integer.value[0] >= k1212MinADCSens &&
1941             u->value.integer.value[0] <= k1212MaxADCSens &&
1942             u->value.integer.value[0] != korg1212->leftADCInSens) {
1943                 korg1212->leftADCInSens = u->value.integer.value[0];
1944                 change = 1;
1945         }
1946         if (u->value.integer.value[1] >= k1212MinADCSens &&
1947             u->value.integer.value[1] <= k1212MaxADCSens &&
1948             u->value.integer.value[1] != korg1212->rightADCInSens) {
1949                 korg1212->rightADCInSens = u->value.integer.value[1];
1950                 change = 1;
1951         }
1952
1953         spin_unlock_irq(&korg1212->lock);
1954
1955         if (change)
1956                 snd_korg1212_WriteADCSensitivity(korg1212);
1957
1958         return change;
1959 }
1960
1961 static int snd_korg1212_control_sync_info(struct snd_kcontrol *kcontrol,
1962                                           struct snd_ctl_elem_info *uinfo)
1963 {
1964         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1965         uinfo->count = 1;
1966         uinfo->value.enumerated.items = 3;
1967         if (uinfo->value.enumerated.item > 2) {
1968                 uinfo->value.enumerated.item = 2;
1969         }
1970         strcpy(uinfo->value.enumerated.name, clockSourceTypeName[uinfo->value.enumerated.item]);
1971         return 0;
1972 }
1973
1974 static int snd_korg1212_control_sync_get(struct snd_kcontrol *kcontrol,
1975                                          struct snd_ctl_elem_value *ucontrol)
1976 {
1977         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1978
1979         spin_lock_irq(&korg1212->lock);
1980
1981         ucontrol->value.enumerated.item[0] = korg1212->clkSource;
1982
1983         spin_unlock_irq(&korg1212->lock);
1984         return 0;
1985 }
1986
1987 static int snd_korg1212_control_sync_put(struct snd_kcontrol *kcontrol,
1988                                          struct snd_ctl_elem_value *ucontrol)
1989 {
1990         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1991         unsigned int val;
1992         int change;
1993
1994         val = ucontrol->value.enumerated.item[0] % 3;
1995         spin_lock_irq(&korg1212->lock);
1996         change = val != korg1212->clkSource;
1997         snd_korg1212_SetClockSource(korg1212, val);
1998         spin_unlock_irq(&korg1212->lock);
1999         return change;
2000 }
2001
2002 #define MON_MIXER(ord,c_name)                                                                   \
2003         {                                                                                       \
2004                 .access =       SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,       \
2005                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,                                     \
2006                 .name =         c_name " Monitor Volume",                                       \
2007                 .info =         snd_korg1212_control_volume_info,                               \
2008                 .get =          snd_korg1212_control_volume_get,                                \
2009                 .put =          snd_korg1212_control_volume_put,                                \
2010                 .private_value = ord,                                                           \
2011         },                                                                                      \
2012         {                                                                                       \
2013                 .access =       SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,       \
2014                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,                                     \
2015                 .name =         c_name " Monitor Route",                                        \
2016                 .info =         snd_korg1212_control_route_info,                                \
2017                 .get =          snd_korg1212_control_route_get,                                 \
2018                 .put =          snd_korg1212_control_route_put,                                 \
2019                 .private_value = ord,                                                           \
2020         },                                                                                      \
2021         {                                                                                       \
2022                 .access =       SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,       \
2023                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,                                     \
2024                 .name =         c_name " Monitor Phase Invert",                                 \
2025                 .info =         snd_korg1212_control_phase_info,                                \
2026                 .get =          snd_korg1212_control_phase_get,                                 \
2027                 .put =          snd_korg1212_control_phase_put,                                 \
2028                 .private_value = ord,                                                           \
2029         }
2030
2031 static struct snd_kcontrol_new snd_korg1212_controls[] = {
2032         MON_MIXER(8, "Analog"),
2033         MON_MIXER(10, "SPDIF"),
2034         MON_MIXER(0, "ADAT-1"), MON_MIXER(1, "ADAT-2"), MON_MIXER(2, "ADAT-3"), MON_MIXER(3, "ADAT-4"),
2035         MON_MIXER(4, "ADAT-5"), MON_MIXER(5, "ADAT-6"), MON_MIXER(6, "ADAT-7"), MON_MIXER(7, "ADAT-8"),
2036         {
2037                 .access =       SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,
2038                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2039                 .name =         "Sync Source",
2040                 .info =         snd_korg1212_control_sync_info,
2041                 .get =          snd_korg1212_control_sync_get,
2042                 .put =          snd_korg1212_control_sync_put,
2043         },
2044         {
2045                 .access =       SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,
2046                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2047                 .name =         "ADC Attenuation",
2048                 .info =         snd_korg1212_control_info,
2049                 .get =          snd_korg1212_control_get,
2050                 .put =          snd_korg1212_control_put,
2051         }
2052 };
2053
2054 /*
2055  * proc interface
2056  */
2057
2058 static void snd_korg1212_proc_read(struct snd_info_entry *entry,
2059                                    struct snd_info_buffer *buffer)
2060 {
2061         int n;
2062         struct snd_korg1212 *korg1212 = entry->private_data;
2063
2064         snd_iprintf(buffer, korg1212->card->longname);
2065         snd_iprintf(buffer, " (index #%d)\n", korg1212->card->number + 1);
2066         snd_iprintf(buffer, "\nGeneral settings\n");
2067         snd_iprintf(buffer, "    period size: %Zd bytes\n", K1212_PERIOD_BYTES);
2068         snd_iprintf(buffer, "     clock mode: %s\n", clockSourceName[korg1212->clkSrcRate] );
2069         snd_iprintf(buffer, "  left ADC Sens: %d\n", korg1212->leftADCInSens );
2070         snd_iprintf(buffer, " right ADC Sens: %d\n", korg1212->rightADCInSens );
2071         snd_iprintf(buffer, "    Volume Info:\n");
2072         for (n=0; n<kAudioChannels; n++)
2073                 snd_iprintf(buffer, " Channel %d: %s -> %s [%d]\n", n,
2074                                     channelName[n],
2075                                     channelName[korg1212->sharedBufferPtr->routeData[n]],
2076                                     korg1212->sharedBufferPtr->volumeData[n]);
2077         snd_iprintf(buffer, "\nGeneral status\n");
2078         snd_iprintf(buffer, " ADAT Time Code: %d\n", korg1212->sharedBufferPtr->AdatTimeCode);
2079         snd_iprintf(buffer, "     Card State: %s\n", stateName[korg1212->cardState]);
2080         snd_iprintf(buffer, "Idle mon. State: %d\n", korg1212->idleMonitorOn);
2081         snd_iprintf(buffer, "Cmd retry count: %d\n", korg1212->cmdRetryCount);
2082         snd_iprintf(buffer, "      Irq count: %ld\n", korg1212->irqcount);
2083         snd_iprintf(buffer, "    Error count: %ld\n", korg1212->totalerrorcnt);
2084 }
2085
2086 static void __devinit snd_korg1212_proc_init(struct snd_korg1212 *korg1212)
2087 {
2088         struct snd_info_entry *entry;
2089
2090         if (! snd_card_proc_new(korg1212->card, "korg1212", &entry))
2091                 snd_info_set_text_ops(entry, korg1212, snd_korg1212_proc_read);
2092 }
2093
2094 static int
2095 snd_korg1212_free(struct snd_korg1212 *korg1212)
2096 {
2097         snd_korg1212_TurnOffIdleMonitor(korg1212);
2098
2099         if (korg1212->irq >= 0) {
2100                 snd_korg1212_DisableCardInterrupts(korg1212);
2101                 free_irq(korg1212->irq, korg1212);
2102                 korg1212->irq = -1;
2103         }
2104
2105         if (korg1212->iobase != NULL) {
2106                 iounmap(korg1212->iobase);
2107                 korg1212->iobase = NULL;
2108         }
2109
2110         pci_release_regions(korg1212->pci);
2111
2112         // ----------------------------------------------------
2113         // free up memory resources used for the DSP download.
2114         // ----------------------------------------------------
2115         if (korg1212->dma_dsp.area) {
2116                 snd_dma_free_pages(&korg1212->dma_dsp);
2117                 korg1212->dma_dsp.area = NULL;
2118         }
2119
2120 #ifndef K1212_LARGEALLOC
2121
2122         // ------------------------------------------------------
2123         // free up memory resources used for the Play/Rec Buffers
2124         // ------------------------------------------------------
2125         if (korg1212->dma_play.area) {
2126                 snd_dma_free_pages(&korg1212->dma_play);
2127                 korg1212->dma_play.area = NULL;
2128         }
2129
2130         if (korg1212->dma_rec.area) {
2131                 snd_dma_free_pages(&korg1212->dma_rec);
2132                 korg1212->dma_rec.area = NULL;
2133         }
2134
2135 #endif
2136
2137         // ----------------------------------------------------
2138         // free up memory resources used for the Shared Buffers
2139         // ----------------------------------------------------
2140         if (korg1212->dma_shared.area) {
2141                 snd_dma_free_pages(&korg1212->dma_shared);
2142                 korg1212->dma_shared.area = NULL;
2143         }
2144
2145         pci_disable_device(korg1212->pci);
2146         kfree(korg1212);
2147         return 0;
2148 }
2149
2150 static int snd_korg1212_dev_free(struct snd_device *device)
2151 {
2152         struct snd_korg1212 *korg1212 = device->device_data;
2153         K1212_DEBUG_PRINTK("K1212_DEBUG: Freeing device\n");
2154         return snd_korg1212_free(korg1212);
2155 }
2156
2157 static int __devinit snd_korg1212_create(struct snd_card *card, struct pci_dev *pci,
2158                                          struct snd_korg1212 ** rchip)
2159
2160 {
2161         int err, rc;
2162         unsigned int i;
2163         unsigned ioport_size, iomem_size, iomem2_size;
2164         struct snd_korg1212 * korg1212;
2165         const struct firmware *dsp_code;
2166
2167         static struct snd_device_ops ops = {
2168                 .dev_free = snd_korg1212_dev_free,
2169         };
2170
2171         * rchip = NULL;
2172         if ((err = pci_enable_device(pci)) < 0)
2173                 return err;
2174
2175         korg1212 = kzalloc(sizeof(*korg1212), GFP_KERNEL);
2176         if (korg1212 == NULL) {
2177                 pci_disable_device(pci);
2178                 return -ENOMEM;
2179         }
2180
2181         korg1212->card = card;
2182         korg1212->pci = pci;
2183
2184         init_waitqueue_head(&korg1212->wait);
2185         spin_lock_init(&korg1212->lock);
2186         mutex_init(&korg1212->open_mutex);
2187         init_timer(&korg1212->timer);
2188         korg1212->timer.function = snd_korg1212_timer_func;
2189         korg1212->timer.data = (unsigned long)korg1212;
2190
2191         korg1212->irq = -1;
2192         korg1212->clkSource = K1212_CLKIDX_Local;
2193         korg1212->clkRate = 44100;
2194         korg1212->inIRQ = 0;
2195         korg1212->running = 0;
2196         korg1212->opencnt = 0;
2197         korg1212->playcnt = 0;
2198         korg1212->setcnt = 0;
2199         korg1212->totalerrorcnt = 0;
2200         korg1212->playback_pid = -1;
2201         korg1212->capture_pid = -1;
2202         snd_korg1212_setCardState(korg1212, K1212_STATE_UNINITIALIZED);
2203         korg1212->idleMonitorOn = 0;
2204         korg1212->clkSrcRate = K1212_CLKIDX_LocalAt44_1K;
2205         korg1212->leftADCInSens = k1212MaxADCSens;
2206         korg1212->rightADCInSens = k1212MaxADCSens;
2207
2208         for (i=0; i<kAudioChannels; i++)
2209                 korg1212->volumePhase[i] = 0;
2210
2211         if ((err = pci_request_regions(pci, "korg1212")) < 0) {
2212                 kfree(korg1212);
2213                 pci_disable_device(pci);
2214                 return err;
2215         }
2216
2217         korg1212->iomem = pci_resource_start(korg1212->pci, 0);
2218         korg1212->ioport = pci_resource_start(korg1212->pci, 1);
2219         korg1212->iomem2 = pci_resource_start(korg1212->pci, 2);
2220
2221         iomem_size = pci_resource_len(korg1212->pci, 0);
2222         ioport_size = pci_resource_len(korg1212->pci, 1);
2223         iomem2_size = pci_resource_len(korg1212->pci, 2);
2224
2225         K1212_DEBUG_PRINTK("K1212_DEBUG: resources:\n"
2226                    "    iomem = 0x%lx (%d)\n"
2227                    "    ioport  = 0x%lx (%d)\n"
2228                    "    iomem = 0x%lx (%d)\n"
2229                    "    [%s]\n",
2230                    korg1212->iomem, iomem_size,
2231                    korg1212->ioport, ioport_size,
2232                    korg1212->iomem2, iomem2_size,
2233                    stateName[korg1212->cardState]);
2234
2235         if ((korg1212->iobase = ioremap(korg1212->iomem, iomem_size)) == NULL) {
2236                 snd_printk(KERN_ERR "korg1212: unable to remap memory region 0x%lx-0x%lx\n", korg1212->iomem,
2237                            korg1212->iomem + iomem_size - 1);
2238                 snd_korg1212_free(korg1212);
2239                 return -EBUSY;
2240         }
2241
2242         err = request_irq(pci->irq, snd_korg1212_interrupt,
2243                           IRQF_SHARED,
2244                           "korg1212", korg1212);
2245
2246         if (err) {
2247                 snd_printk(KERN_ERR "korg1212: unable to grab IRQ %d\n", pci->irq);
2248                 snd_korg1212_free(korg1212);
2249                 return -EBUSY;
2250         }
2251
2252         korg1212->irq = pci->irq;
2253
2254         pci_set_master(korg1212->pci);
2255
2256         korg1212->statusRegPtr = (u32 __iomem *) (korg1212->iobase + STATUS_REG_OFFSET);
2257         korg1212->outDoorbellPtr = (u32 __iomem *) (korg1212->iobase + OUT_DOORBELL_OFFSET);
2258         korg1212->inDoorbellPtr = (u32 __iomem *) (korg1212->iobase + IN_DOORBELL_OFFSET);
2259         korg1212->mailbox0Ptr = (u32 __iomem *) (korg1212->iobase + MAILBOX0_OFFSET);
2260         korg1212->mailbox1Ptr = (u32 __iomem *) (korg1212->iobase + MAILBOX1_OFFSET);
2261         korg1212->mailbox2Ptr = (u32 __iomem *) (korg1212->iobase + MAILBOX2_OFFSET);
2262         korg1212->mailbox3Ptr = (u32 __iomem *) (korg1212->iobase + MAILBOX3_OFFSET);
2263         korg1212->controlRegPtr = (u32 __iomem *) (korg1212->iobase + PCI_CONTROL_OFFSET);
2264         korg1212->sensRegPtr = (u16 __iomem *) (korg1212->iobase + SENS_CONTROL_OFFSET);
2265         korg1212->idRegPtr = (u32 __iomem *) (korg1212->iobase + DEV_VEND_ID_OFFSET);
2266
2267         K1212_DEBUG_PRINTK("K1212_DEBUG: card registers:\n"
2268                    "    Status register = 0x%p\n"
2269                    "    OutDoorbell     = 0x%p\n"
2270                    "    InDoorbell      = 0x%p\n"
2271                    "    Mailbox0        = 0x%p\n"
2272                    "    Mailbox1        = 0x%p\n"
2273                    "    Mailbox2        = 0x%p\n"
2274                    "    Mailbox3        = 0x%p\n"
2275                    "    ControlReg      = 0x%p\n"
2276                    "    SensReg         = 0x%p\n"
2277                    "    IDReg           = 0x%p\n"
2278                    "    [%s]\n",
2279                    korg1212->statusRegPtr,
2280                    korg1212->outDoorbellPtr,
2281                    korg1212->inDoorbellPtr,
2282                    korg1212->mailbox0Ptr,
2283                    korg1212->mailbox1Ptr,
2284                    korg1212->mailbox2Ptr,
2285                    korg1212->mailbox3Ptr,
2286                    korg1212->controlRegPtr,
2287                    korg1212->sensRegPtr,
2288                    korg1212->idRegPtr,
2289                    stateName[korg1212->cardState]);
2290
2291         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
2292                                 sizeof(struct KorgSharedBuffer), &korg1212->dma_shared) < 0) {
2293                 snd_printk(KERN_ERR "korg1212: can not allocate shared buffer memory (%Zd bytes)\n", sizeof(struct KorgSharedBuffer));
2294                 snd_korg1212_free(korg1212);
2295                 return -ENOMEM;
2296         }
2297         korg1212->sharedBufferPtr = (struct KorgSharedBuffer *)korg1212->dma_shared.area;
2298         korg1212->sharedBufferPhy = korg1212->dma_shared.addr;
2299
2300         K1212_DEBUG_PRINTK("K1212_DEBUG: Shared Buffer Area = 0x%p (0x%08lx), %d bytes\n", korg1212->sharedBufferPtr, korg1212->sharedBufferPhy, sizeof(struct KorgSharedBuffer));
2301
2302 #ifndef K1212_LARGEALLOC
2303
2304         korg1212->DataBufsSize = sizeof(struct KorgAudioBuffer) * kNumBuffers;
2305
2306         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
2307                                 korg1212->DataBufsSize, &korg1212->dma_play) < 0) {
2308                 snd_printk(KERN_ERR "korg1212: can not allocate play data buffer memory (%d bytes)\n", korg1212->DataBufsSize);
2309                 snd_korg1212_free(korg1212);
2310                 return -ENOMEM;
2311         }
2312         korg1212->playDataBufsPtr = (struct KorgAudioBuffer *)korg1212->dma_play.area;
2313         korg1212->PlayDataPhy = korg1212->dma_play.addr;
2314
2315         K1212_DEBUG_PRINTK("K1212_DEBUG: Play Data Area = 0x%p (0x%08x), %d bytes\n",
2316                 korg1212->playDataBufsPtr, korg1212->PlayDataPhy, korg1212->DataBufsSize);
2317
2318         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
2319                                 korg1212->DataBufsSize, &korg1212->dma_rec) < 0) {
2320                 snd_printk(KERN_ERR "korg1212: can not allocate record data buffer memory (%d bytes)\n", korg1212->DataBufsSize);
2321                 snd_korg1212_free(korg1212);
2322                 return -ENOMEM;
2323         }
2324         korg1212->recordDataBufsPtr = (struct KorgAudioBuffer *)korg1212->dma_rec.area;
2325         korg1212->RecDataPhy = korg1212->dma_rec.addr;
2326
2327         K1212_DEBUG_PRINTK("K1212_DEBUG: Record Data Area = 0x%p (0x%08x), %d bytes\n",
2328                 korg1212->recordDataBufsPtr, korg1212->RecDataPhy, korg1212->DataBufsSize);
2329
2330 #else // K1212_LARGEALLOC
2331
2332         korg1212->recordDataBufsPtr = korg1212->sharedBufferPtr->recordDataBufs;
2333         korg1212->playDataBufsPtr = korg1212->sharedBufferPtr->playDataBufs;
2334         korg1212->PlayDataPhy = (u32) &((struct KorgSharedBuffer *) korg1212->sharedBufferPhy)->playDataBufs;
2335         korg1212->RecDataPhy  = (u32) &((struct KorgSharedBuffer *) korg1212->sharedBufferPhy)->recordDataBufs;
2336
2337 #endif // K1212_LARGEALLOC
2338
2339         korg1212->VolumeTablePhy = korg1212->sharedBufferPhy +
2340                 offsetof(struct KorgSharedBuffer, volumeData);
2341         korg1212->RoutingTablePhy = korg1212->sharedBufferPhy +
2342                 offsetof(struct KorgSharedBuffer, routeData);
2343         korg1212->AdatTimeCodePhy = korg1212->sharedBufferPhy +
2344                 offsetof(struct KorgSharedBuffer, AdatTimeCode);
2345
2346         err = request_firmware(&dsp_code, "korg/k1212.dsp", &pci->dev);
2347         if (err < 0) {
2348                 release_firmware(dsp_code);
2349                 snd_printk(KERN_ERR "firmware not available\n");
2350                 snd_korg1212_free(korg1212);
2351                 return err;
2352         }
2353
2354         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
2355                                 dsp_code->size, &korg1212->dma_dsp) < 0) {
2356                 snd_printk(KERN_ERR "korg1212: cannot allocate dsp code memory (%zd bytes)\n", dsp_code->size);
2357                 snd_korg1212_free(korg1212);
2358                 release_firmware(dsp_code);
2359                 return -ENOMEM;
2360         }
2361
2362         K1212_DEBUG_PRINTK("K1212_DEBUG: DSP Code area = 0x%p (0x%08x) %d bytes [%s]\n",
2363                    korg1212->dma_dsp.area, korg1212->dma_dsp.addr, dsp_code->size,
2364                    stateName[korg1212->cardState]);
2365
2366         memcpy(korg1212->dma_dsp.area, dsp_code->data, dsp_code->size);
2367
2368         release_firmware(dsp_code);
2369
2370         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_RebootCard, 0, 0, 0, 0);
2371
2372         if (rc)
2373                 K1212_DEBUG_PRINTK("K1212_DEBUG: Reboot Card - RC = %d [%s]\n", rc, stateName[korg1212->cardState]);
2374
2375         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, korg1212, &ops)) < 0) {
2376                 snd_korg1212_free(korg1212);
2377                 return err;
2378         }
2379
2380         snd_korg1212_EnableCardInterrupts(korg1212);
2381
2382         mdelay(CARD_BOOT_DELAY_IN_MS);
2383
2384         if (snd_korg1212_downloadDSPCode(korg1212))
2385                 return -EBUSY;
2386
2387         K1212_DEBUG_PRINTK("korg1212: dspMemPhy = %08x U[%08x], "
2388                "PlayDataPhy = %08x L[%08x]\n"
2389                "korg1212: RecDataPhy = %08x L[%08x], "
2390                "VolumeTablePhy = %08x L[%08x]\n"
2391                "korg1212: RoutingTablePhy = %08x L[%08x], "
2392                "AdatTimeCodePhy = %08x L[%08x]\n",
2393                (int)korg1212->dma_dsp.addr,    UpperWordSwap(korg1212->dma_dsp.addr),
2394                korg1212->PlayDataPhy,     LowerWordSwap(korg1212->PlayDataPhy),
2395                korg1212->RecDataPhy,      LowerWordSwap(korg1212->RecDataPhy),
2396                korg1212->VolumeTablePhy,  LowerWordSwap(korg1212->VolumeTablePhy),
2397                korg1212->RoutingTablePhy, LowerWordSwap(korg1212->RoutingTablePhy),
2398                korg1212->AdatTimeCodePhy, LowerWordSwap(korg1212->AdatTimeCodePhy));
2399
2400         if ((err = snd_pcm_new(korg1212->card, "korg1212", 0, 1, 1, &korg1212->pcm)) < 0)
2401                 return err;
2402
2403         korg1212->pcm->private_data = korg1212;
2404         korg1212->pcm->private_free = snd_korg1212_free_pcm;
2405         strcpy(korg1212->pcm->name, "korg1212");
2406
2407         snd_pcm_set_ops(korg1212->pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_korg1212_playback_ops);
2408
2409         snd_pcm_set_ops(korg1212->pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_korg1212_capture_ops);
2410
2411         korg1212->pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
2412
2413         for (i = 0; i < ARRAY_SIZE(snd_korg1212_controls); i++) {
2414                 err = snd_ctl_add(korg1212->card, snd_ctl_new1(&snd_korg1212_controls[i], korg1212));
2415                 if (err < 0)
2416                         return err;
2417         }
2418
2419         snd_korg1212_proc_init(korg1212);
2420
2421         snd_card_set_dev(card, &pci->dev);
2422
2423         * rchip = korg1212;
2424         return 0;
2425
2426 }
2427
2428 /*
2429  * Card initialisation
2430  */
2431
2432 static int __devinit
2433 snd_korg1212_probe(struct pci_dev *pci,
2434                 const struct pci_device_id *pci_id)
2435 {
2436         static int dev;
2437         struct snd_korg1212 *korg1212;
2438         struct snd_card *card;
2439         int err;
2440
2441         if (dev >= SNDRV_CARDS) {
2442                 return -ENODEV;
2443         }
2444         if (!enable[dev]) {
2445                 dev++;
2446                 return -ENOENT;
2447         }
2448         err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
2449         if (err < 0)
2450                 return err;
2451
2452         if ((err = snd_korg1212_create(card, pci, &korg1212)) < 0) {
2453                 snd_card_free(card);
2454                 return err;
2455         }
2456
2457         strcpy(card->driver, "korg1212");
2458         strcpy(card->shortname, "korg1212");
2459         sprintf(card->longname, "%s at 0x%lx, irq %d", card->shortname,
2460                 korg1212->iomem, korg1212->irq);
2461
2462         K1212_DEBUG_PRINTK("K1212_DEBUG: %s\n", card->longname);
2463
2464         if ((err = snd_card_register(card)) < 0) {
2465                 snd_card_free(card);
2466                 return err;
2467         }
2468         pci_set_drvdata(pci, card);
2469         dev++;
2470         return 0;
2471 }
2472
2473 static void __devexit snd_korg1212_remove(struct pci_dev *pci)
2474 {
2475         snd_card_free(pci_get_drvdata(pci));
2476         pci_set_drvdata(pci, NULL);
2477 }
2478
2479 static struct pci_driver driver = {
2480         .name = "korg1212",
2481         .id_table = snd_korg1212_ids,
2482         .probe = snd_korg1212_probe,
2483         .remove = __devexit_p(snd_korg1212_remove),
2484 };
2485
2486 static int __init alsa_card_korg1212_init(void)
2487 {
2488         return pci_register_driver(&driver);
2489 }
2490
2491 static void __exit alsa_card_korg1212_exit(void)
2492 {
2493         pci_unregister_driver(&driver);
2494 }
2495
2496 module_init(alsa_card_korg1212_init)
2497 module_exit(alsa_card_korg1212_exit)