sound/pci/korg1212/korg1212.c

   1 /*
   2  *   Driver for the Korg 1212 IO PCI card
   3  *
   4  *      Copyright (c) 2001 Haroldo Gamal <gamal@alternex.com.br>
   5  *
   6  *   This program is free software; you can redistribute it and/or modify
   7  *   it under the terms of the GNU General Public License as published by
   8  *   the Free Software Foundation; either version 2 of the License, or
   9  *   (at your option) any later version.
  10  *
  11  *   This program is distributed in the hope that it will be useful,
  12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *   GNU General Public License for more details.
  15  *
  16  *   You should have received a copy of the GNU General Public License
  17  *   along with this program; if not, write to the Free Software
  18  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  19  *
  20  */
  21
  22 #include <sound/driver.h>
  23 #include <linux/delay.h>
  24 #include <linux/init.h>
  25 #include <linux/interrupt.h>
  26 #include <linux/pci.h>
  27 #include <linux/slab.h>
  28 #include <linux/wait.h>
  29 #include <linux/moduleparam.h>
  30
  31 #include <sound/core.h>
  32 #include <sound/info.h>
  33 #include <sound/control.h>
  34 #include <sound/pcm.h>
  35 #include <sound/pcm_params.h>
  36 #include <sound/initval.h>
  37
  38 #include <asm/io.h>
  39
  40 // ----------------------------------------------------------------------------
  41 // Debug Stuff
  42 // ----------------------------------------------------------------------------
  43 #define K1212_DEBUG_LEVEL               0
  44 #define K1212_DEBUG_PRINTK              printk
  45 //#define K1212_DEBUG_PRINTK(x...)      printk("<0>" x)
  46
  47 // ----------------------------------------------------------------------------
  48 // Record/Play Buffer Allocation Method. If K1212_LARGEALLOC is defined all
  49 // buffers are alocated as a large piece inside KorgSharedBuffer.
  50 // ----------------------------------------------------------------------------
  51 //#define K1212_LARGEALLOC              1
  52
  53 // ----------------------------------------------------------------------------
  54 // the following enum defines the valid states of the Korg 1212 I/O card.
  55 // ----------------------------------------------------------------------------
  56 typedef enum {
  57    K1212_STATE_NONEXISTENT,             // there is no card here
  58    K1212_STATE_UNINITIALIZED,           // the card is awaiting DSP download
  59    K1212_STATE_DSP_IN_PROCESS,          // the card is currently downloading its DSP code
  60    K1212_STATE_DSP_COMPLETE,            // the card has finished the DSP download
  61    K1212_STATE_READY,                   // the card can be opened by an application.  Any application
  62                                         //    requests prior to this state should fail.  Only an open
  63                                         //    request can be made at this state.
  64    K1212_STATE_OPEN,                    // an application has opened the card
  65    K1212_STATE_SETUP,                   // the card has been setup for play
  66    K1212_STATE_PLAYING,                 // the card is playing
  67    K1212_STATE_MONITOR,                 // the card is in the monitor mode
  68    K1212_STATE_CALIBRATING,             // the card is currently calibrating
  69    K1212_STATE_ERRORSTOP,               // the card has stopped itself because of an error and we
  70                                         //    are in the process of cleaning things up.
  71    K1212_STATE_MAX_STATE                // state values of this and beyond are invalid
  72 } CardState;
  73
  74 // ----------------------------------------------------------------------------
  75 // The following enumeration defines the constants written to the card's
  76 // host-to-card doorbell to initiate a command.
  77 // ----------------------------------------------------------------------------
  78 typedef enum {
  79    K1212_DB_RequestForData        = 0,    // sent by the card to request a buffer fill.
  80    K1212_DB_TriggerPlay           = 1,    // starts playback/record on the card.
  81    K1212_DB_SelectPlayMode        = 2,    // select monitor, playback setup, or stop.
  82    K1212_DB_ConfigureBufferMemory = 3,    // tells card where the host audio buffers are.
  83    K1212_DB_RequestAdatTimecode   = 4,    // asks the card for the latest ADAT timecode value.
  84    K1212_DB_SetClockSourceRate    = 5,    // sets the clock source and rate for the card.
  85    K1212_DB_ConfigureMiscMemory   = 6,    // tells card where other buffers are.
  86    K1212_DB_TriggerFromAdat       = 7,    // tells card to trigger from Adat at a specific
  87                                           //    timecode value.
  88    K1212_DB_RebootCard            = 0xA0, // instructs the card to reboot.
  89    K1212_DB_BootFromDSPPage4      = 0xA4, // instructs the card to boot from the DSP microcode
  90                                           //    on page 4 (local page to card).
  91    K1212_DB_DSPDownloadDone       = 0xAE, // sent by the card to indicate the download has
  92                                           //    completed.
  93    K1212_DB_StartDSPDownload      = 0xAF  // tells the card to download its DSP firmware.
  94 } korg1212_dbcnst_t;
  95
  96 #define K1212_ISRCODE_DMAERROR      0x80
  97 #define K1212_ISRCODE_CARDSTOPPED   0x81
  98
  99 // ----------------------------------------------------------------------------
 100 // The following enumeration defines return codes for DeviceIoControl() calls
 101 // to the Korg 1212 I/O driver.
 102 // ----------------------------------------------------------------------------
 103 typedef enum {
 104    K1212_CMDRET_Success         = 0,   // command was successfully placed
 105    K1212_CMDRET_DIOCFailure,           // the DeviceIoControl call failed
 106    K1212_CMDRET_PMFailure,             // the protected mode call failed
 107    K1212_CMDRET_FailUnspecified,       // unspecified failure
 108    K1212_CMDRET_FailBadState,          // the specified command can not be given in
 109                                        //    the card's current state. (or the wave device's
 110                                        //    state)
 111    K1212_CMDRET_CardUninitialized,     // the card is uninitialized and cannot be used
 112    K1212_CMDRET_BadIndex,              // an out of range card index was specified
 113    K1212_CMDRET_BadHandle,             // an invalid card handle was specified
 114    K1212_CMDRET_NoFillRoutine,         // a play request has been made before a fill routine set
 115    K1212_CMDRET_FillRoutineInUse,      // can't set a new fill routine while one is in use
 116    K1212_CMDRET_NoAckFromCard,         // the card never acknowledged a command
 117    K1212_CMDRET_BadParams,             // bad parameters were provided by the caller
 118
 119    // --------------------------------------------------------------
 120    // the following return errors are specific to the wave device
 121    // driver interface.  These will not be encountered by users of
 122    // the 32 bit DIOC interface (a.k.a. custom or native API).
 123    // --------------------------------------------------------------
 124    K1212_CMDRET_BadDevice,             // the specified wave device was out of range
 125    K1212_CMDRET_BadFormat              // the specified wave format is unsupported
 126 } snd_korg1212rc;
 127
 128 // ----------------------------------------------------------------------------
 129 // The following enumeration defines the constants used to select the play
 130 // mode for the card in the SelectPlayMode command.
 131 // ----------------------------------------------------------------------------
 132 typedef enum {
 133    K1212_MODE_SetupPlay  = 0x00000001,     // provides card with pre-play information
 134    K1212_MODE_MonitorOn  = 0x00000002,     // tells card to turn on monitor mode
 135    K1212_MODE_MonitorOff = 0x00000004,     // tells card to turn off monitor mode
 136    K1212_MODE_StopPlay   = 0x00000008      // stops playback on the card
 137 } PlayModeSelector;
 138
 139 // ----------------------------------------------------------------------------
 140 // The following enumeration defines the constants used to select the monitor
 141 // mode for the card in the SetMonitorMode command.
 142 // ----------------------------------------------------------------------------
 143 typedef enum {
 144    K1212_MONMODE_Off  = 0,     // tells card to turn off monitor mode
 145    K1212_MONMODE_On            // tells card to turn on monitor mode
 146 } MonitorModeSelector;
 147
 148 #define MAILBOX0_OFFSET      0x40       // location of mailbox 0 relative to base address
 149 #define MAILBOX1_OFFSET      0x44       // location of mailbox 1 relative to base address
 150 #define MAILBOX2_OFFSET      0x48       // location of mailbox 2 relative to base address
 151 #define MAILBOX3_OFFSET      0x4c       // location of mailbox 3 relative to base address
 152 #define OUT_DOORBELL_OFFSET  0x60       // location of PCI to local doorbell
 153 #define IN_DOORBELL_OFFSET   0x64       // location of local to PCI doorbell
 154 #define STATUS_REG_OFFSET    0x68       // location of interrupt control/status register
 155 #define PCI_CONTROL_OFFSET   0x6c       // location of the EEPROM, PCI, User I/O, init control
 156                                         //    register
 157 #define SENS_CONTROL_OFFSET  0x6e       // location of the input sensitivity setting register.
 158                                         //    this is the upper word of the PCI control reg.
 159 #define DEV_VEND_ID_OFFSET   0x70       // location of the device and vendor ID register
 160
 161 #define COMMAND_ACK_DELAY    13        // number of RTC ticks to wait for an acknowledgement
 162                                         //    from the card after sending a command.
 163 #define INTERCOMMAND_DELAY   40
 164 #define MAX_COMMAND_RETRIES  5         // maximum number of times the driver will attempt
 165                                        //    to send a command before giving up.
 166 #define COMMAND_ACK_MASK     0x8000    // the MSB is set in the command acknowledgment from
 167                                         //    the card.
 168 #define DOORBELL_VAL_MASK    0x00FF    // the doorbell value is one byte
 169
 170 #define CARD_BOOT_DELAY_IN_MS  10
 171 #define CARD_BOOT_TIMEOUT      10
 172 #define DSP_BOOT_DELAY_IN_MS   200
 173
 174 #define kNumBuffers             8
 175 #define k1212MaxCards           4
 176 #define k1212NumWaveDevices     6
 177 #define k16BitChannels          10
 178 #define k32BitChannels          2
 179 #define kAudioChannels          (k16BitChannels + k32BitChannels)
 180 #define kPlayBufferFrames       1024
 181
 182 #define K1212_ANALOG_CHANNELS   2
 183 #define K1212_SPDIF_CHANNELS    2
 184 #define K1212_ADAT_CHANNELS     8
 185 #define K1212_CHANNELS          (K1212_ADAT_CHANNELS + K1212_ANALOG_CHANNELS)
 186 #define K1212_MIN_CHANNELS      1
 187 #define K1212_MAX_CHANNELS      K1212_CHANNELS
 188 #define K1212_FRAME_SIZE        (sizeof(KorgAudioFrame))
 189 #define K1212_MAX_SAMPLES       (kPlayBufferFrames*kNumBuffers)
 190 #define K1212_PERIODS           (kNumBuffers)
 191 #define K1212_PERIOD_BYTES      (K1212_FRAME_SIZE*kPlayBufferFrames)
 192 #define K1212_BUF_SIZE          (K1212_PERIOD_BYTES*kNumBuffers)
 193 #define K1212_ANALOG_BUF_SIZE   (K1212_ANALOG_CHANNELS * 2 * kPlayBufferFrames * kNumBuffers)
 194 #define K1212_SPDIF_BUF_SIZE    (K1212_SPDIF_CHANNELS * 3 * kPlayBufferFrames * kNumBuffers)
 195 #define K1212_ADAT_BUF_SIZE     (K1212_ADAT_CHANNELS * 2 * kPlayBufferFrames * kNumBuffers)
 196 #define K1212_MAX_BUF_SIZE      (K1212_ANALOG_BUF_SIZE + K1212_ADAT_BUF_SIZE)
 197
 198 #define k1212MinADCSens     0x7f
 199 #define k1212MaxADCSens     0x00
 200 #define k1212MaxVolume      0x7fff
 201 #define k1212MaxWaveVolume  0xffff
 202 #define k1212MinVolume      0x0000
 203 #define k1212MaxVolInverted 0x8000
 204
 205 // -----------------------------------------------------------------
 206 // the following bits are used for controlling interrupts in the
 207 // interrupt control/status reg
 208 // -----------------------------------------------------------------
 209 #define  PCI_INT_ENABLE_BIT               0x00000100
 210 #define  PCI_DOORBELL_INT_ENABLE_BIT      0x00000200
 211 #define  LOCAL_INT_ENABLE_BIT             0x00010000
 212 #define  LOCAL_DOORBELL_INT_ENABLE_BIT    0x00020000
 213 #define  LOCAL_DMA1_INT_ENABLE_BIT        0x00080000
 214
 215 // -----------------------------------------------------------------
 216 // the following bits are defined for the PCI command register
 217 // -----------------------------------------------------------------
 218 #define  PCI_CMD_MEM_SPACE_ENABLE_BIT     0x0002
 219 #define  PCI_CMD_IO_SPACE_ENABLE_BIT      0x0001
 220 #define  PCI_CMD_BUS_MASTER_ENABLE_BIT    0x0004
 221
 222 // -----------------------------------------------------------------
 223 // the following bits are defined for the PCI status register
 224 // -----------------------------------------------------------------
 225 #define  PCI_STAT_PARITY_ERROR_BIT        0x8000
 226 #define  PCI_STAT_SYSTEM_ERROR_BIT        0x4000
 227 #define  PCI_STAT_MASTER_ABORT_RCVD_BIT   0x2000
 228 #define  PCI_STAT_TARGET_ABORT_RCVD_BIT   0x1000
 229 #define  PCI_STAT_TARGET_ABORT_SENT_BIT   0x0800
 230
 231 // ------------------------------------------------------------------------
 232 // the following constants are used in setting the 1212 I/O card's input
 233 // sensitivity.
 234 // ------------------------------------------------------------------------
 235 #define  SET_SENS_LOCALINIT_BITPOS        15
 236 #define  SET_SENS_DATA_BITPOS             10
 237 #define  SET_SENS_CLOCK_BITPOS            8
 238 #define  SET_SENS_LOADSHIFT_BITPOS        0
 239
 240 #define  SET_SENS_LEFTCHANID              0x00
 241 #define  SET_SENS_RIGHTCHANID             0x01
 242
 243 #define  K1212SENSUPDATE_DELAY_IN_MS      50
 244
 245 // --------------------------------------------------------------------------
 246 // WaitRTCTicks
 247 //
 248 //    This function waits the specified number of real time clock ticks.
 249 //    According to the DDK, each tick is ~0.8 microseconds.
 250 //    The defines following the function declaration can be used for the
 251 //    numTicksToWait parameter.
 252 // --------------------------------------------------------------------------
 253 #define ONE_RTC_TICK         1
 254 #define SENSCLKPULSE_WIDTH   4
 255 #define LOADSHIFT_DELAY      4
 256 #define INTERCOMMAND_DELAY  40
 257 #define STOPCARD_DELAY      300        // max # RTC ticks for the card to stop once we write
 258                                        //    the command register.  (could be up to 180 us)
 259 #define COMMAND_ACK_DELAY   13         // number of RTC ticks to wait for an acknowledgement
 260                                        //    from the card after sending a command.
 261
 262 #include "korg1212-firmware.h"
 263
 264 typedef struct _snd_korg1212 korg1212_t;
 265
 266 typedef u16 K1212Sample;          // channels 0-9 use 16 bit samples
 267 typedef u32 K1212SpdifSample;     // channels 10-11 use 32 bits - only 20 are sent
 268                                   //  across S/PDIF.
 269 typedef u32 K1212TimeCodeSample;  // holds the ADAT timecode value
 270
 271 typedef enum {
 272    K1212_CLKIDX_AdatAt44_1K = 0,    // selects source as ADAT at 44.1 kHz
 273    K1212_CLKIDX_AdatAt48K,          // selects source as ADAT at 48 kHz
 274    K1212_CLKIDX_WordAt44_1K,        // selects source as S/PDIF at 44.1 kHz
 275    K1212_CLKIDX_WordAt48K,          // selects source as S/PDIF at 48 kHz
 276    K1212_CLKIDX_LocalAt44_1K,       // selects source as local clock at 44.1 kHz
 277    K1212_CLKIDX_LocalAt48K,         // selects source as local clock at 48 kHz
 278    K1212_CLKIDX_Invalid             // used to check validity of the index
 279 } ClockSourceIndex;
 280
 281 typedef enum {
 282    K1212_CLKIDX_Adat = 0,    // selects source as ADAT
 283    K1212_CLKIDX_Word,        // selects source as S/PDIF
 284    K1212_CLKIDX_Local        // selects source as local clock
 285 } ClockSourceType;
 286
 287 typedef struct KorgAudioFrame {
 288    K1212Sample          frameData16[k16BitChannels];
 289    K1212SpdifSample     frameData32[k32BitChannels];
 290    K1212TimeCodeSample  timeCodeVal;
 291 } KorgAudioFrame;
 292
 293 typedef struct KorgAudioBuffer {
 294    KorgAudioFrame  bufferData[kPlayBufferFrames];     /* buffer definition */
 295 } KorgAudioBuffer;
 296
 297 typedef struct KorgSharedBuffer {
 298 #ifdef K1212_LARGEALLOC
 299    KorgAudioBuffer   playDataBufs[kNumBuffers];
 300    KorgAudioBuffer   recordDataBufs[kNumBuffers];
 301 #endif
 302    short             volumeData[kAudioChannels];
 303    u32               cardCommand;
 304    u16               routeData [kAudioChannels];
 305    u32               AdatTimeCode;                 // ADAT timecode value
 306 } KorgSharedBuffer;
 307
 308 typedef struct SensBits {
 309    union {
 310       struct {
 311          unsigned int leftChanVal:8;
 312          unsigned int leftChanId:8;
 313       } v;
 314       u16  leftSensBits;
 315    } l;
 316    union {
 317       struct {
 318          unsigned int rightChanVal:8;
 319          unsigned int rightChanId:8;
 320       } v;
 321       u16  rightSensBits;
 322    } r;
 323 } SensBits;
 324
 325 struct _snd_korg1212 {
 326         snd_card_t *card;
 327         struct pci_dev *pci;
 328         snd_pcm_t *pcm;
 329         int irq;
 330
 331         spinlock_t    lock;
 332         struct semaphore open_mutex;
 333
 334         struct timer_list timer;        /* timer callback for checking ack of stop request */
 335         int stop_pending_cnt;           /* counter for stop pending check */
 336
 337         wait_queue_head_t wait;
 338
 339         unsigned long iomem;
 340         unsigned long ioport;
 341         unsigned long iomem2;
 342         unsigned long irqcount;
 343         unsigned long inIRQ;
 344         void __iomem *iobase;
 345
 346         struct snd_dma_buffer dma_dsp;
 347         struct snd_dma_buffer dma_play;
 348         struct snd_dma_buffer dma_rec;
 349         struct snd_dma_buffer dma_shared;
 350
 351         u32 dspCodeSize;
 352
 353         u32 DataBufsSize;
 354
 355         KorgAudioBuffer  * playDataBufsPtr;
 356         KorgAudioBuffer  * recordDataBufsPtr;
 357
 358         KorgSharedBuffer * sharedBufferPtr;
 359
 360         u32 RecDataPhy;
 361         u32 PlayDataPhy;
 362         unsigned long sharedBufferPhy;
 363         u32 VolumeTablePhy;
 364         u32 RoutingTablePhy;
 365         u32 AdatTimeCodePhy;
 366
 367         u32 __iomem * statusRegPtr;          // address of the interrupt status/control register
 368         u32 __iomem * outDoorbellPtr;        // address of the host->card doorbell register
 369         u32 __iomem * inDoorbellPtr;         // address of the card->host doorbell register
 370         u32 __iomem * mailbox0Ptr;           // address of mailbox 0 on the card
 371         u32 __iomem * mailbox1Ptr;           // address of mailbox 1 on the card
 372         u32 __iomem * mailbox2Ptr;           // address of mailbox 2 on the card
 373         u32 __iomem * mailbox3Ptr;           // address of mailbox 3 on the card
 374         u32 __iomem * controlRegPtr;         // address of the EEPROM, PCI, I/O, Init ctrl reg
 375         u16 __iomem * sensRegPtr;            // address of the sensitivity setting register
 376         u32 __iomem * idRegPtr;              // address of the device and vendor ID registers
 377
 378         size_t periodsize;
 379         int channels;
 380         int currentBuffer;
 381
 382         snd_pcm_substream_t *playback_substream;
 383         snd_pcm_substream_t *capture_substream;
 384
 385         pid_t capture_pid;
 386         pid_t playback_pid;
 387
 388         CardState cardState;
 389         int running;
 390         int idleMonitorOn;           // indicates whether the card is in idle monitor mode.
 391         u32 cmdRetryCount;           // tracks how many times we have retried sending to the card.
 392
 393         ClockSourceIndex clkSrcRate; // sample rate and clock source
 394
 395         ClockSourceType clkSource;   // clock source
 396         int clkRate;                 // clock rate
 397
 398         int volumePhase[kAudioChannels];
 399
 400         u16 leftADCInSens;           // ADC left channel input sensitivity
 401         u16 rightADCInSens;          // ADC right channel input sensitivity
 402
 403         int opencnt;                    // Open/Close count
 404         int setcnt;                     // SetupForPlay count
 405         int playcnt;                    // TriggerPlay count
 406
 407 };
 408
 409 MODULE_DESCRIPTION("korg1212");
 410 MODULE_LICENSE("GPL");
 411 MODULE_SUPPORTED_DEVICE("{{KORG,korg1212}}");
 412
 413 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;     /* Index 0-MAX */
 414 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;          /* ID for this card */
 415 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
 416
 417 module_param_array(index, int, NULL, 0444);
 418 MODULE_PARM_DESC(index, "Index value for Korg 1212 soundcard.");
 419 module_param_array(id, charp, NULL, 0444);
 420 MODULE_PARM_DESC(id, "ID string for Korg 1212 soundcard.");
 421 module_param_array(enable, bool, NULL, 0444);
 422 MODULE_PARM_DESC(enable, "Enable Korg 1212 soundcard.");
 423 MODULE_AUTHOR("Haroldo Gamal <gamal@alternex.com.br>");
 424
 425 static struct pci_device_id snd_korg1212_ids[] = {
 426         {
 427                 .vendor    = 0x10b5,
 428                 .device    = 0x906d,
 429                 .subvendor = PCI_ANY_ID,
 430                 .subdevice = PCI_ANY_ID,
 431         },
 432         { 0, },
 433 };
 434
 435 static char* stateName[] = {
 436                         "Non-existent",
 437                         "Uninitialized",
 438                         "DSP download in process",
 439                         "DSP download complete",
 440                         "Ready",
 441                         "Open",
 442                         "Setup for play",
 443                         "Playing",
 444                         "Monitor mode on",
 445                         "Calibrating"
 446                         "Invalid"
 447 };
 448
 449 static char* clockSourceTypeName[] = { "ADAT", "S/PDIF", "local" };
 450
 451 static char* clockSourceName[] = {
 452                         "ADAT at 44.1 kHz",
 453                         "ADAT at 48 kHz",
 454                         "S/PDIF at 44.1 kHz",
 455                         "S/PDIF at 48 kHz",
 456                         "local clock at 44.1 kHz",
 457                         "local clock at 48 kHz"
 458 };
 459
 460 static char* channelName[] = {
 461                         "ADAT-1",
 462                         "ADAT-2",
 463                         "ADAT-3",
 464                         "ADAT-4",
 465                         "ADAT-5",
 466                         "ADAT-6",
 467                         "ADAT-7",
 468                         "ADAT-8",
 469                         "Analog-L",
 470                         "Analog-R",
 471                         "SPDIF-L",
 472                         "SPDIF-R",
 473 };
 474
 475 static u16 ClockSourceSelector[] =
 476                             {0x8000,   // selects source as ADAT at 44.1 kHz
 477                              0x0000,   // selects source as ADAT at 48 kHz
 478                              0x8001,   // selects source as S/PDIF at 44.1 kHz
 479                              0x0001,   // selects source as S/PDIF at 48 kHz
 480                              0x8002,   // selects source as local clock at 44.1 kHz
 481                              0x0002    // selects source as local clock at 48 kHz
 482                             };
 483
 484 static snd_korg1212rc rc;
 485
 486 MODULE_DEVICE_TABLE(pci, snd_korg1212_ids);
 487
 488 typedef union swap_u32 { unsigned char c[4]; u32 i; } swap_u32;
 489
 490 #ifdef SNDRV_BIG_ENDIAN
 491 static u32 LowerWordSwap(u32 swappee)
 492 #else
 493 static u32 UpperWordSwap(u32 swappee)
 494 #endif
 495 {
 496    swap_u32 retVal, swapper;
 497
 498    swapper.i = swappee;
 499    retVal.c[2] = swapper.c[3];
 500    retVal.c[3] = swapper.c[2];
 501    retVal.c[1] = swapper.c[1];
 502    retVal.c[0] = swapper.c[0];
 503
 504    return retVal.i;
 505 }
 506
 507 #ifdef SNDRV_BIG_ENDIAN
 508 static u32 UpperWordSwap(u32 swappee)
 509 #else
 510 static u32 LowerWordSwap(u32 swappee)
 511 #endif
 512 {
 513    swap_u32 retVal, swapper;
 514
 515    swapper.i = swappee;
 516    retVal.c[2] = swapper.c[2];
 517    retVal.c[3] = swapper.c[3];
 518    retVal.c[1] = swapper.c[0];
 519    retVal.c[0] = swapper.c[1];
 520
 521    return retVal.i;
 522 }
 523
 524 #if 0 /* not used */
 525
 526 static u32 EndianSwap(u32 swappee)
 527 {
 528    swap_u32 retVal, swapper;
 529
 530    swapper.i = swappee;
 531    retVal.c[0] = swapper.c[3];
 532    retVal.c[1] = swapper.c[2];
 533    retVal.c[2] = swapper.c[1];
 534    retVal.c[3] = swapper.c[0];
 535
 536    return retVal.i;
 537 }
 538
 539 #endif /* not used */
 540
 541 #define SetBitInWord(theWord,bitPosition)       (*theWord) |= (0x0001 << bitPosition)
 542 #define SetBitInDWord(theWord,bitPosition)      (*theWord) |= (0x00000001 << bitPosition)
 543 #define ClearBitInWord(theWord,bitPosition)     (*theWord) &= ~(0x0001 << bitPosition)
 544 #define ClearBitInDWord(theWord,bitPosition)    (*theWord) &= ~(0x00000001 << bitPosition)
 545
 546 static snd_korg1212rc snd_korg1212_Send1212Command(korg1212_t *korg1212, korg1212_dbcnst_t doorbellVal,
 547                             u32 mailBox0Val, u32 mailBox1Val, u32 mailBox2Val, u32 mailBox3Val)
 548 {
 549         u32 retryCount;
 550         u16 mailBox3Lo;
 551         snd_korg1212rc rc = K1212_CMDRET_Success;
 552
 553         if (!korg1212->outDoorbellPtr) {
 554 #if K1212_DEBUG_LEVEL > 1
 555                 K1212_DEBUG_PRINTK("K1212_DEBUG: CardUninitialized\n");
 556 #endif
 557                 return K1212_CMDRET_CardUninitialized;
 558         }
 559
 560 #if K1212_DEBUG_LEVEL > 0
 561         K1212_DEBUG_PRINTK("K1212_DEBUG: Card <- 0x%08x 0x%08x [%s]\n", doorbellVal, mailBox0Val, stateName[korg1212->cardState]);
 562 #endif
 563         for (retryCount = 0; retryCount < MAX_COMMAND_RETRIES; retryCount++) {
 564                 writel(mailBox3Val, korg1212->mailbox3Ptr);
 565                 writel(mailBox2Val, korg1212->mailbox2Ptr);
 566                 writel(mailBox1Val, korg1212->mailbox1Ptr);
 567                 writel(mailBox0Val, korg1212->mailbox0Ptr);
 568                 writel(doorbellVal, korg1212->outDoorbellPtr);  // interrupt the card
 569
 570                 // --------------------------------------------------------------
 571                 // the reboot command will not give an acknowledgement.
 572                 // --------------------------------------------------------------
 573                 if ( doorbellVal == K1212_DB_RebootCard ||
 574                         doorbellVal == K1212_DB_BootFromDSPPage4 ||
 575                         doorbellVal == K1212_DB_StartDSPDownload ) {
 576                         rc = K1212_CMDRET_Success;
 577                         break;
 578                 }
 579
 580                 // --------------------------------------------------------------
 581                 // See if the card acknowledged the command.  Wait a bit, then
 582                 // read in the low word of mailbox3.  If the MSB is set and the
 583                 // low byte is equal to the doorbell value, then it ack'd.
 584                 // --------------------------------------------------------------
 585                 udelay(COMMAND_ACK_DELAY);
 586                 mailBox3Lo = readl(korg1212->mailbox3Ptr);
 587                 if (mailBox3Lo & COMMAND_ACK_MASK) {
 588                         if ((mailBox3Lo & DOORBELL_VAL_MASK) == (doorbellVal & DOORBELL_VAL_MASK)) {
 589 #if K1212_DEBUG_LEVEL > 1
 590                                 K1212_DEBUG_PRINTK("K1212_DEBUG: Card <- Success\n");
 591 #endif
 592                                 rc = K1212_CMDRET_Success;
 593                                 break;
 594                         }
 595                 }
 596         }
 597         korg1212->cmdRetryCount += retryCount;
 598
 599         if (retryCount >= MAX_COMMAND_RETRIES) {
 600 #if K1212_DEBUG_LEVEL > 1
 601                 K1212_DEBUG_PRINTK("K1212_DEBUG: Card <- NoAckFromCard\n");
 602 #endif
 603                 rc = K1212_CMDRET_NoAckFromCard;
 604         }
 605
 606         return rc;
 607 }
 608
 609 /* spinlock already held */
 610 static void snd_korg1212_SendStop(korg1212_t *korg1212)
 611 {
 612         if (! korg1212->stop_pending_cnt) {
 613                 writel(0xffffffff, &korg1212->sharedBufferPtr->cardCommand);
 614                 /* program the timer */
 615                 korg1212->stop_pending_cnt = HZ;
 616                 korg1212->timer.expires = jiffies + 1;
 617                 add_timer(&korg1212->timer);
 618         }
 619 }
 620
 621 static void snd_korg1212_SendStopAndWait(korg1212_t *korg1212)
 622 {
 623         unsigned long flags;
 624         spin_lock_irqsave(&korg1212->lock, flags);
 625         snd_korg1212_SendStop(korg1212);
 626         spin_unlock_irqrestore(&korg1212->lock, flags);
 627         sleep_on_timeout(&korg1212->wait, (HZ * 3) / 2);
 628 }
 629
 630 /* timer callback for checking the ack of stop request */
 631 static void snd_korg1212_timer_func(unsigned long data)
 632 {
 633         korg1212_t *korg1212 = (korg1212_t *) data;
 634
 635         spin_lock(&korg1212->lock);
 636         if (readl(&korg1212->sharedBufferPtr->cardCommand) == 0) {
 637                 /* ack'ed */
 638                 korg1212->stop_pending_cnt = 0;
 639                 wake_up(&korg1212->wait);
 640 #if K1212_DEBUG_LEVEL > 1
 641                 K1212_DEBUG_PRINTK("K1212_DEBUG: Stop ack'ed [%s]\n", stateName[korg1212->cardState]);
 642 #endif
 643         } else {
 644                 if (--korg1212->stop_pending_cnt > 0) {
 645                         /* reprogram timer */
 646                         korg1212->timer.expires = jiffies + 1;
 647                         add_timer(&korg1212->timer);
 648                 } else {
 649                         snd_printd("korg1212_timer_func timeout\n");
 650                         writel(0, &korg1212->sharedBufferPtr->cardCommand);
 651                         wake_up(&korg1212->wait);
 652 #if K1212_DEBUG_LEVEL > 0
 653                         K1212_DEBUG_PRINTK("K1212_DEBUG: Stop timeout [%s]\n", stateName[korg1212->cardState]);
 654 #endif
 655                 }
 656         }
 657         spin_unlock(&korg1212->lock);
 658 }
 659
 660 static void snd_korg1212_TurnOnIdleMonitor(korg1212_t *korg1212)
 661 {
 662         unsigned long flags;
 663
 664         udelay(INTERCOMMAND_DELAY);
 665         spin_lock_irqsave(&korg1212->lock, flags);
 666         korg1212->idleMonitorOn = 1;
 667         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SelectPlayMode,
 668                                           K1212_MODE_MonitorOn, 0, 0, 0);
 669         spin_unlock_irqrestore(&korg1212->lock, flags);
 670 }
 671
 672 static void snd_korg1212_TurnOffIdleMonitor(korg1212_t *korg1212)
 673 {
 674         if (korg1212->idleMonitorOn) {
 675                 snd_korg1212_SendStopAndWait(korg1212);
 676                 korg1212->idleMonitorOn = 0;
 677         }
 678 }
 679
 680 static inline void snd_korg1212_setCardState(korg1212_t * korg1212, CardState csState)
 681 {
 682         korg1212->cardState = csState;
 683 }
 684
 685 static int snd_korg1212_OpenCard(korg1212_t * korg1212)
 686 {
 687 #if K1212_DEBUG_LEVEL > 0
 688         K1212_DEBUG_PRINTK("K1212_DEBUG: OpenCard [%s] %d\n", stateName[korg1212->cardState], korg1212->opencnt);
 689 #endif
 690         down(&korg1212->open_mutex);
 691         if (korg1212->opencnt++ == 0) {
 692                 snd_korg1212_TurnOffIdleMonitor(korg1212);
 693                 snd_korg1212_setCardState(korg1212, K1212_STATE_OPEN);
 694         }
 695
 696         up(&korg1212->open_mutex);
 697         return 1;
 698 }
 699
 700 static int snd_korg1212_CloseCard(korg1212_t * korg1212)
 701 {
 702 #if K1212_DEBUG_LEVEL > 0
 703         K1212_DEBUG_PRINTK("K1212_DEBUG: CloseCard [%s] %d\n", stateName[korg1212->cardState], korg1212->opencnt);
 704 #endif
 705
 706         down(&korg1212->open_mutex);
 707         if (--(korg1212->opencnt)) {
 708                 up(&korg1212->open_mutex);
 709                 return 0;
 710         }
 711
 712         if (korg1212->cardState == K1212_STATE_SETUP) {
 713                 rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SelectPlayMode,
 714                                 K1212_MODE_StopPlay, 0, 0, 0);
 715 #if K1212_DEBUG_LEVEL > 0
 716         if (rc) K1212_DEBUG_PRINTK("K1212_DEBUG: CloseCard - RC = %d [%s]\n", rc, stateName[korg1212->cardState]);
 717 #endif
 718
 719                 if (rc != K1212_CMDRET_Success) {
 720                         up(&korg1212->open_mutex);
 721                         return 0;
 722                 }
 723         } else if (korg1212->cardState > K1212_STATE_SETUP) {
 724                 snd_korg1212_SendStopAndWait(korg1212);
 725         }
 726
 727         if (korg1212->cardState > K1212_STATE_READY) {
 728                 snd_korg1212_TurnOnIdleMonitor(korg1212);
 729                 snd_korg1212_setCardState(korg1212, K1212_STATE_READY);
 730         }
 731
 732         up(&korg1212->open_mutex);
 733         return 0;
 734 }
 735
 736 /* spinlock already held */
 737 static int snd_korg1212_SetupForPlay(korg1212_t * korg1212)
 738 {
 739 #if K1212_DEBUG_LEVEL > 0
 740         K1212_DEBUG_PRINTK("K1212_DEBUG: SetupForPlay [%s] %d\n", stateName[korg1212->cardState], korg1212->setcnt);
 741 #endif
 742
 743         if (korg1212->setcnt++)
 744                 return 0;
 745
 746         snd_korg1212_setCardState(korg1212, K1212_STATE_SETUP);
 747         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SelectPlayMode,
 748                                         K1212_MODE_SetupPlay, 0, 0, 0);
 749
 750 #if K1212_DEBUG_LEVEL > 0
 751         if (rc) K1212_DEBUG_PRINTK("K1212_DEBUG: SetupForPlay - RC = %d [%s]\n", rc, stateName[korg1212->cardState]);
 752 #endif
 753         if (rc != K1212_CMDRET_Success) {
 754                 return 1;
 755         }
 756         return 0;
 757 }
 758
 759 /* spinlock already held */
 760 static int snd_korg1212_TriggerPlay(korg1212_t * korg1212)
 761 {
 762 #if K1212_DEBUG_LEVEL > 0
 763         K1212_DEBUG_PRINTK("K1212_DEBUG: TriggerPlay [%s] %d\n", stateName[korg1212->cardState], korg1212->playcnt);
 764 #endif
 765
 766         if (korg1212->playcnt++)
 767                 return 0;
 768
 769         snd_korg1212_setCardState(korg1212, K1212_STATE_PLAYING);
 770         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_TriggerPlay, 0, 0, 0, 0);
 771
 772 #if K1212_DEBUG_LEVEL > 0
 773         if (rc) K1212_DEBUG_PRINTK("K1212_DEBUG: TriggerPlay - RC = %d [%s]\n", rc, stateName[korg1212->cardState]);
 774 #endif
 775
 776         if (rc != K1212_CMDRET_Success) {
 777                 return 1;
 778         }
 779         return 0;
 780 }
 781
 782 /* spinlock already held */
 783 static int snd_korg1212_StopPlay(korg1212_t * korg1212)
 784 {
 785 #if K1212_DEBUG_LEVEL > 0
 786         K1212_DEBUG_PRINTK("K1212_DEBUG: StopPlay [%s] %d\n", stateName[korg1212->cardState], korg1212->playcnt);
 787 #endif
 788
 789         if (--(korg1212->playcnt))
 790                 return 0;
 791
 792         korg1212->setcnt = 0;
 793
 794         if (korg1212->cardState != K1212_STATE_ERRORSTOP)
 795                 snd_korg1212_SendStop(korg1212);
 796
 797         snd_korg1212_setCardState(korg1212, K1212_STATE_OPEN);
 798         return 0;
 799 }
 800
 801 static void snd_korg1212_EnableCardInterrupts(korg1212_t * korg1212)
 802 {
 803         writel(PCI_INT_ENABLE_BIT            |
 804                PCI_DOORBELL_INT_ENABLE_BIT   |
 805                LOCAL_INT_ENABLE_BIT          |
 806                LOCAL_DOORBELL_INT_ENABLE_BIT |
 807                LOCAL_DMA1_INT_ENABLE_BIT,
 808                korg1212->statusRegPtr);
 809 }
 810
 811 #if 0 /* not used */
 812
 813 static int snd_korg1212_SetMonitorMode(korg1212_t *korg1212, MonitorModeSelector mode)
 814 {
 815 #if K1212_DEBUG_LEVEL > 0
 816         K1212_DEBUG_PRINTK("K1212_DEBUG: SetMonitorMode [%s]\n", stateName[korg1212->cardState]);
 817 #endif
 818
 819         switch (mode) {
 820                 case K1212_MONMODE_Off:
 821                         if (korg1212->cardState != K1212_STATE_MONITOR) {
 822                                 return 0;
 823                         } else {
 824                                 snd_korg1212_SendStopAndWait(korg1212);
 825                                 snd_korg1212_setCardState(korg1212, K1212_STATE_OPEN);
 826                         }
 827                         break;
 828
 829                 case K1212_MONMODE_On:
 830                         if (korg1212->cardState != K1212_STATE_OPEN) {
 831                                 return 0;
 832                         } else {
 833                                 snd_korg1212_setCardState(korg1212, K1212_STATE_MONITOR);
 834                                 rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SelectPlayMode,
 835                                                         K1212_MODE_MonitorOn, 0, 0, 0);
 836                                 if (rc != K1212_CMDRET_Success) {
 837                                         return 0;
 838                                 }
 839                         }
 840                         break;
 841
 842                 default:
 843                         return 0;
 844         }
 845
 846         return 1;
 847 }
 848
 849 #endif /* not used */
 850
 851 static inline int snd_korg1212_use_is_exclusive(korg1212_t *korg1212)
 852 {
 853         unsigned long flags;
 854         int ret = 1;
 855
 856         spin_lock_irqsave(&korg1212->lock, flags);
 857         if ((korg1212->playback_pid != korg1212->capture_pid) &&
 858             (korg1212->playback_pid >= 0) && (korg1212->capture_pid >= 0)) {
 859                 ret = 0;
 860         }
 861         spin_unlock_irqrestore(&korg1212->lock, flags);
 862         return ret;
 863 }
 864
 865 static int snd_korg1212_SetRate(korg1212_t *korg1212, int rate)
 866 {
 867         static ClockSourceIndex s44[] = { K1212_CLKIDX_AdatAt44_1K,
 868                                           K1212_CLKIDX_WordAt44_1K,
 869                                           K1212_CLKIDX_LocalAt44_1K };
 870         static ClockSourceIndex s48[] = {
 871                                           K1212_CLKIDX_AdatAt48K,
 872                                           K1212_CLKIDX_WordAt48K,
 873                                           K1212_CLKIDX_LocalAt48K };
 874         int parm;
 875
 876         if (!snd_korg1212_use_is_exclusive (korg1212)) {
 877                 return -EBUSY;
 878         }
 879
 880         switch(rate) {
 881                 case 44100:
 882                 parm = s44[korg1212->clkSource];
 883                 break;
 884
 885                 case 48000:
 886                 parm = s48[korg1212->clkSource];
 887                 break;
 888
 889                 default:
 890                 return -EINVAL;
 891         }
 892
 893         korg1212->clkSrcRate = parm;
 894         korg1212->clkRate = rate;
 895
 896         udelay(INTERCOMMAND_DELAY);
 897         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SetClockSourceRate,
 898                                           ClockSourceSelector[korg1212->clkSrcRate],
 899                                           0, 0, 0);
 900
 901 #if K1212_DEBUG_LEVEL > 0
 902         if (rc) K1212_DEBUG_PRINTK("K1212_DEBUG: Set Clock Source Selector - RC = %d [%s]\n", rc, stateName[korg1212->cardState]);
 903 #endif
 904
 905         return 0;
 906 }
 907
 908 static int snd_korg1212_SetClockSource(korg1212_t *korg1212, int source)
 909 {
 910
 911         if (source<0 || source >2)
 912            return -EINVAL;
 913
 914         korg1212->clkSource = source;
 915
 916         snd_korg1212_SetRate(korg1212, korg1212->clkRate);
 917
 918         return 0;
 919 }
 920
 921 static void snd_korg1212_DisableCardInterrupts(korg1212_t *korg1212)
 922 {
 923         writel(0, korg1212->statusRegPtr);
 924 }
 925
 926 static int snd_korg1212_WriteADCSensitivity(korg1212_t *korg1212)
 927 {
 928         SensBits  sensVals;
 929         int       bitPosition;
 930         int       channel;
 931         int       clkIs48K;
 932         int       monModeSet;
 933         u16       controlValue;    // this keeps the current value to be written to
 934                                    //  the card's eeprom control register.
 935         u16       count;
 936         unsigned long flags;
 937
 938 #if K1212_DEBUG_LEVEL > 0
 939         K1212_DEBUG_PRINTK("K1212_DEBUG: WriteADCSensivity [%s]\n", stateName[korg1212->cardState]);
 940 #endif
 941
 942         // ----------------------------------------------------------------------------
 943         // initialize things.  The local init bit is always set when writing to the
 944         // card's control register.
 945         // ----------------------------------------------------------------------------
 946         controlValue = 0;
 947         SetBitInWord(&controlValue, SET_SENS_LOCALINIT_BITPOS);    // init the control value
 948
 949         // ----------------------------------------------------------------------------
 950         // make sure the card is not in monitor mode when we do this update.
 951         // ----------------------------------------------------------------------------
 952         if (korg1212->cardState == K1212_STATE_MONITOR || korg1212->idleMonitorOn) {
 953                 monModeSet = 1;
 954                 snd_korg1212_SendStopAndWait(korg1212);
 955         } else
 956                 monModeSet = 0;
 957
 958         spin_lock_irqsave(&korg1212->lock, flags);
 959
 960         // ----------------------------------------------------------------------------
 961         // we are about to send new values to the card, so clear the new values queued
 962         // flag.  Also, clear out mailbox 3, so we don't lockup.
 963         // ----------------------------------------------------------------------------
 964         writel(0, korg1212->mailbox3Ptr);
 965         udelay(LOADSHIFT_DELAY);
 966
 967         // ----------------------------------------------------------------------------
 968         // determine whether we are running a 48K or 44.1K clock.  This info is used
 969         // later when setting the SPDIF FF after the volume has been shifted in.
 970         // ----------------------------------------------------------------------------
 971         switch (korg1212->clkSrcRate) {
 972                 case K1212_CLKIDX_AdatAt44_1K:
 973                 case K1212_CLKIDX_WordAt44_1K:
 974                 case K1212_CLKIDX_LocalAt44_1K:
 975                         clkIs48K = 0;
 976                         break;
 977
 978                 case K1212_CLKIDX_WordAt48K:
 979                 case K1212_CLKIDX_AdatAt48K:
 980                 case K1212_CLKIDX_LocalAt48K:
 981                 default:
 982                         clkIs48K = 1;
 983                         break;
 984         }
 985
 986         // ----------------------------------------------------------------------------
 987         // start the update.  Setup the bit structure and then shift the bits.
 988         // ----------------------------------------------------------------------------
 989         sensVals.l.v.leftChanId   = SET_SENS_LEFTCHANID;
 990         sensVals.r.v.rightChanId  = SET_SENS_RIGHTCHANID;
 991         sensVals.l.v.leftChanVal  = korg1212->leftADCInSens;
 992         sensVals.r.v.rightChanVal = korg1212->rightADCInSens;
 993
 994         // ----------------------------------------------------------------------------
 995         // now start shifting the bits in.  Start with the left channel then the right.
 996         // ----------------------------------------------------------------------------
 997         for (channel = 0; channel < 2; channel++) {
 998
 999                 // ----------------------------------------------------------------------------
1000                 // Bring the load/shift line low, then wait - the spec says >150ns from load/
1001                 // shift low to the first rising edge of the clock.
1002                 // ----------------------------------------------------------------------------
1003                 ClearBitInWord(&controlValue, SET_SENS_LOADSHIFT_BITPOS);
1004                 ClearBitInWord(&controlValue, SET_SENS_DATA_BITPOS);
1005                 writew(controlValue, korg1212->sensRegPtr);                          // load/shift goes low
1006                 udelay(LOADSHIFT_DELAY);
1007
1008                 for (bitPosition = 15; bitPosition >= 0; bitPosition--) {       // for all the bits
1009                         if (channel == 0) {
1010                                 if (sensVals.l.leftSensBits & (0x0001 << bitPosition)) {
1011                                         SetBitInWord(&controlValue, SET_SENS_DATA_BITPOS);     // data bit set high
1012                                 } else {
1013                                         ClearBitInWord(&controlValue, SET_SENS_DATA_BITPOS);   // data bit set low
1014                                 }
1015                         } else {
1016                                 if (sensVals.r.rightSensBits & (0x0001 << bitPosition)) {
1017                                 SetBitInWord(&controlValue, SET_SENS_DATA_BITPOS);     // data bit set high
1018                                 } else {
1019                                 ClearBitInWord(&controlValue, SET_SENS_DATA_BITPOS);   // data bit set low
1020                                 }
1021                         }
1022
1023                         ClearBitInWord(&controlValue, SET_SENS_CLOCK_BITPOS);
1024                         writew(controlValue, korg1212->sensRegPtr);                       // clock goes low
1025                         udelay(SENSCLKPULSE_WIDTH);
1026                         SetBitInWord(&controlValue, SET_SENS_CLOCK_BITPOS);
1027                         writew(controlValue, korg1212->sensRegPtr);                       // clock goes high
1028                         udelay(SENSCLKPULSE_WIDTH);
1029                 }
1030
1031                 // ----------------------------------------------------------------------------
1032                 // finish up SPDIF for left.  Bring the load/shift line high, then write a one
1033                 // bit if the clock rate is 48K otherwise write 0.
1034                 // ----------------------------------------------------------------------------
1035                 ClearBitInWord(&controlValue, SET_SENS_DATA_BITPOS);
1036                 ClearBitInWord(&controlValue, SET_SENS_CLOCK_BITPOS);
1037                 SetBitInWord(&controlValue, SET_SENS_LOADSHIFT_BITPOS);
1038                 writew(controlValue, korg1212->sensRegPtr);                   // load shift goes high - clk low
1039                 udelay(SENSCLKPULSE_WIDTH);
1040
1041                 if (clkIs48K)
1042                         SetBitInWord(&controlValue, SET_SENS_DATA_BITPOS);
1043
1044                 writew(controlValue, korg1212->sensRegPtr);                   // set/clear data bit
1045                 udelay(ONE_RTC_TICK);
1046                 SetBitInWord(&controlValue, SET_SENS_CLOCK_BITPOS);
1047                 writew(controlValue, korg1212->sensRegPtr);                   // clock goes high
1048                 udelay(SENSCLKPULSE_WIDTH);
1049                 ClearBitInWord(&controlValue, SET_SENS_CLOCK_BITPOS);
1050                 writew(controlValue, korg1212->sensRegPtr);                   // clock goes low
1051                 udelay(SENSCLKPULSE_WIDTH);
1052         }
1053
1054         // ----------------------------------------------------------------------------
1055         // The update is complete.  Set a timeout.  This is the inter-update delay.
1056         // Also, if the card was in monitor mode, restore it.
1057         // ----------------------------------------------------------------------------
1058         for (count = 0; count < 10; count++)
1059                 udelay(SENSCLKPULSE_WIDTH);
1060
1061         if (monModeSet) {
1062                 rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SelectPlayMode,
1063                                 K1212_MODE_MonitorOn, 0, 0, 0);
1064 #if K1212_DEBUG_LEVEL > 0
1065                 if (rc) K1212_DEBUG_PRINTK("K1212_DEBUG: WriteADCSensivity - RC = %d [%s]\n", rc, stateName[korg1212->cardState]);
1066 #endif
1067
1068         }
1069
1070         spin_unlock_irqrestore(&korg1212->lock, flags);
1071
1072         return 1;
1073 }
1074
1075 static void snd_korg1212_OnDSPDownloadComplete(korg1212_t *korg1212)
1076 {
1077         int channel;
1078
1079 #if K1212_DEBUG_LEVEL > 0
1080         K1212_DEBUG_PRINTK("K1212_DEBUG: DSP download is complete. [%s]\n", stateName[korg1212->cardState]);
1081 #endif
1082
1083         // ----------------------------------------------------
1084         // tell the card to boot
1085         // ----------------------------------------------------
1086         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_BootFromDSPPage4, 0, 0, 0, 0);
1087
1088 #if K1212_DEBUG_LEVEL > 0
1089         if (rc) K1212_DEBUG_PRINTK("K1212_DEBUG: Boot from Page 4 - RC = %d [%s]\n", rc, stateName[korg1212->cardState]);
1090 #endif
1091         mdelay(DSP_BOOT_DELAY_IN_MS);
1092
1093         // --------------------------------------------------------------------------------
1094         // Let the card know where all the buffers are.
1095         // --------------------------------------------------------------------------------
1096         rc = snd_korg1212_Send1212Command(korg1212,
1097                         K1212_DB_ConfigureBufferMemory,
1098                         LowerWordSwap(korg1212->PlayDataPhy),
1099                         LowerWordSwap(korg1212->RecDataPhy),
1100                         ((kNumBuffers * kPlayBufferFrames) / 2),   // size given to the card
1101                                                                    // is based on 2 buffers
1102                         0
1103         );
1104
1105 #if K1212_DEBUG_LEVEL > 0
1106         if (rc) K1212_DEBUG_PRINTK("K1212_DEBUG: Configure Buffer Memory - RC = %d [%s]\n", rc, stateName[korg1212->cardState]);
1107 #endif
1108
1109         udelay(INTERCOMMAND_DELAY);
1110
1111         rc = snd_korg1212_Send1212Command(korg1212,
1112                         K1212_DB_ConfigureMiscMemory,
1113                         LowerWordSwap(korg1212->VolumeTablePhy),
1114                         LowerWordSwap(korg1212->RoutingTablePhy),
1115                         LowerWordSwap(korg1212->AdatTimeCodePhy),
1116                         0
1117         );
1118
1119 #if K1212_DEBUG_LEVEL > 0
1120         if (rc) K1212_DEBUG_PRINTK("K1212_DEBUG: Configure Misc Memory - RC = %d [%s]\n", rc, stateName[korg1212->cardState]);
1121 #endif
1122
1123
1124         // --------------------------------------------------------------------------------
1125         // Initialize the routing and volume tables, then update the card's state.
1126         // --------------------------------------------------------------------------------
1127         udelay(INTERCOMMAND_DELAY);
1128
1129         for (channel = 0; channel < kAudioChannels; channel++) {
1130                 korg1212->sharedBufferPtr->volumeData[channel] = k1212MaxVolume;
1131                 //korg1212->sharedBufferPtr->routeData[channel] = channel;
1132                 korg1212->sharedBufferPtr->routeData[channel] = 8 + (channel & 1);
1133         }
1134
1135         snd_korg1212_WriteADCSensitivity(korg1212);
1136
1137         udelay(INTERCOMMAND_DELAY);
1138         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SetClockSourceRate,
1139                                           ClockSourceSelector[korg1212->clkSrcRate],
1140                                           0, 0, 0);
1141 #if K1212_DEBUG_LEVEL > 0
1142         if (rc) K1212_DEBUG_PRINTK("K1212_DEBUG: Set Clock Source Selector - RC = %d [%s]\n", rc, stateName[korg1212->cardState]);
1143 #endif
1144
1145         snd_korg1212_TurnOnIdleMonitor(korg1212);
1146         snd_korg1212_setCardState(korg1212, K1212_STATE_READY);
1147
1148 #if K1212_DEBUG_LEVEL > 0
1149         if (rc) K1212_DEBUG_PRINTK("K1212_DEBUG: Set Monitor On - RC = %d [%s]\n", rc, stateName[korg1212->cardState]);
1150 #endif
1151
1152         snd_korg1212_setCardState(korg1212, K1212_STATE_DSP_COMPLETE);
1153 }
1154
1155 static irqreturn_t snd_korg1212_interrupt(int irq, void *dev_id, struct pt_regs *regs)
1156 {
1157         u32 doorbellValue;
1158         korg1212_t *korg1212 = dev_id;
1159
1160         if(irq != korg1212->irq)
1161                 return IRQ_NONE;
1162
1163         doorbellValue = readl(korg1212->inDoorbellPtr);
1164
1165         if (!doorbellValue)
1166                 return IRQ_NONE;
1167
1168         spin_lock(&korg1212->lock);
1169
1170         writel(doorbellValue, korg1212->inDoorbellPtr);
1171
1172         korg1212->irqcount++;
1173
1174         korg1212->inIRQ++;
1175
1176
1177         switch (doorbellValue) {
1178                 case K1212_DB_DSPDownloadDone:
1179 #if K1212_DEBUG_LEVEL > 0
1180                         K1212_DEBUG_PRINTK("K1212_DEBUG: IRQ DNLD count - %ld, %x, [%s].\n", korg1212->irqcount, doorbellValue, stateName[korg1212->cardState]);
1181 #endif
1182                         if (korg1212->cardState == K1212_STATE_DSP_IN_PROCESS)
1183                                 wake_up(&korg1212->wait);
1184                         break;
1185
1186                 // ------------------------------------------------------------------------
1187                 // an error occurred - stop the card
1188                 // ------------------------------------------------------------------------
1189                 case K1212_ISRCODE_DMAERROR:
1190 #if K1212_DEBUG_LEVEL > 1
1191                         K1212_DEBUG_PRINTK("K1212_DEBUG: IRQ DMAE count - %ld, %x, [%s].\n", korg1212->irqcount, doorbellValue, stateName[korg1212->cardState]);
1192 #endif
1193                         writel(0, &korg1212->sharedBufferPtr->cardCommand);
1194                         snd_korg1212_setCardState(korg1212, K1212_STATE_ERRORSTOP);
1195                         break;
1196
1197                 // ------------------------------------------------------------------------
1198                 // the card has stopped by our request.  Clear the command word and signal
1199                 // the semaphore in case someone is waiting for this.
1200                 // ------------------------------------------------------------------------
1201                 case K1212_ISRCODE_CARDSTOPPED:
1202 #if K1212_DEBUG_LEVEL > 1
1203                         K1212_DEBUG_PRINTK("K1212_DEBUG: IRQ CSTP count - %ld, %x, [%s].\n", korg1212->irqcount, doorbellValue, stateName[korg1212->cardState]);
1204 #endif
1205                         writel(0, &korg1212->sharedBufferPtr->cardCommand);
1206                         break;
1207
1208                 default:
1209 #if K1212_DEBUG_LEVEL > 3
1210                         K1212_DEBUG_PRINTK("K1212_DEBUG: IRQ DFLT count - %ld, %x, cpos=%d [%s].\n", korg1212->irqcount, doorbellValue,
1211                                 korg1212->currentBuffer, stateName[korg1212->cardState]);
1212 #endif
1213                         if ((korg1212->cardState > K1212_STATE_SETUP) || korg1212->idleMonitorOn) {
1214                                 korg1212->currentBuffer++;
1215
1216                                 if (korg1212->currentBuffer >= kNumBuffers)
1217                                         korg1212->currentBuffer = 0;
1218
1219                                 if (!korg1212->running)
1220                                         break;
1221
1222                                 if (korg1212->capture_substream) {
1223                                         spin_unlock(&korg1212->lock);
1224                                         snd_pcm_period_elapsed(korg1212->capture_substream);
1225                                         spin_lock(&korg1212->lock);
1226                                 }
1227
1228                                 if (korg1212->playback_substream) {
1229                                         spin_unlock(&korg1212->lock);
1230                                         snd_pcm_period_elapsed(korg1212->playback_substream);
1231                                         spin_lock(&korg1212->lock);
1232                                 }
1233                         }
1234                         break;
1235         }
1236
1237         korg1212->inIRQ--;
1238
1239         spin_unlock(&korg1212->lock);
1240
1241         return IRQ_HANDLED;
1242 }
1243
1244 static int snd_korg1212_downloadDSPCode(korg1212_t *korg1212)
1245 {
1246
1247 #if K1212_DEBUG_LEVEL > 0
1248         K1212_DEBUG_PRINTK("K1212_DEBUG: DSP download is starting... [%s]\n", stateName[korg1212->cardState]);
1249 #endif
1250
1251         // ---------------------------------------------------------------
1252         // verify the state of the card before proceeding.
1253         // ---------------------------------------------------------------
1254         if (korg1212->cardState >= K1212_STATE_DSP_IN_PROCESS) {
1255                 return 1;
1256         }
1257
1258         snd_korg1212_setCardState(korg1212, K1212_STATE_DSP_IN_PROCESS);
1259
1260         memcpy(korg1212->dma_dsp.area, dspCode, korg1212->dspCodeSize);
1261
1262         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_StartDSPDownload,
1263                                      UpperWordSwap(korg1212->dma_dsp.addr),
1264                                      0, 0, 0);
1265
1266 #if K1212_DEBUG_LEVEL > 0
1267         if (rc) K1212_DEBUG_PRINTK("K1212_DEBUG: Start DSP Download RC = %d [%s]\n", rc, stateName[korg1212->cardState]);
1268 #endif
1269
1270         if (! sleep_on_timeout(&korg1212->wait, HZ * CARD_BOOT_TIMEOUT))
1271                 return -EBUSY; /* timeout */
1272
1273         snd_korg1212_OnDSPDownloadComplete(korg1212);
1274
1275         return 0;
1276 }
1277
1278 static snd_pcm_hardware_t snd_korg1212_playback_info =
1279 {
1280         .info =              (SNDRV_PCM_INFO_MMAP |
1281                               SNDRV_PCM_INFO_MMAP_VALID |
1282                               SNDRV_PCM_INFO_INTERLEAVED),
1283         .formats =            SNDRV_PCM_FMTBIT_S16_LE,
1284         .rates =              (SNDRV_PCM_RATE_44100 |
1285                               SNDRV_PCM_RATE_48000),
1286         .rate_min =           44100,
1287         .rate_max =           48000,
1288         .channels_min =       K1212_MIN_CHANNELS,
1289         .channels_max =       K1212_MAX_CHANNELS,
1290         .buffer_bytes_max =   K1212_MAX_BUF_SIZE,
1291         .period_bytes_min =   K1212_MIN_CHANNELS * 2 * kPlayBufferFrames,
1292         .period_bytes_max =   K1212_MAX_CHANNELS * 2 * kPlayBufferFrames,
1293         .periods_min =        K1212_PERIODS,
1294         .periods_max =        K1212_PERIODS,
1295         .fifo_size =          0,
1296 };
1297
1298 static snd_pcm_hardware_t snd_korg1212_capture_info =
1299 {
1300         .info =              (SNDRV_PCM_INFO_MMAP |
1301                               SNDRV_PCM_INFO_MMAP_VALID |
1302                               SNDRV_PCM_INFO_INTERLEAVED),
1303         .formats =            SNDRV_PCM_FMTBIT_S16_LE,
1304         .rates =              (SNDRV_PCM_RATE_44100 |
1305                               SNDRV_PCM_RATE_48000),
1306         .rate_min =           44100,
1307         .rate_max =           48000,
1308         .channels_min =       K1212_MIN_CHANNELS,
1309         .channels_max =       K1212_MAX_CHANNELS,
1310         .buffer_bytes_max =   K1212_MAX_BUF_SIZE,
1311         .period_bytes_min =   K1212_MIN_CHANNELS * 2 * kPlayBufferFrames,
1312         .period_bytes_max =   K1212_MAX_CHANNELS * 2 * kPlayBufferFrames,
1313         .periods_min =        K1212_PERIODS,
1314         .periods_max =        K1212_PERIODS,
1315         .fifo_size =          0,
1316 };
1317
1318 static int snd_korg1212_silence(korg1212_t *korg1212, int pos, int count, int offset, int size)
1319 {
1320         KorgAudioFrame * dst =  korg1212->playDataBufsPtr[0].bufferData + pos;
1321         int i;
1322
1323 #if K1212_DEBUG_LEVEL > 2
1324         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_silence pos=%d offset=%d size=%d count=%d\n", pos, offset, size, count);
1325 #endif
1326         snd_assert(pos + count <= K1212_MAX_SAMPLES, return -EINVAL);
1327
1328         for (i=0; i < count; i++) {
1329 #if K1212_DEBUG_LEVEL > 0
1330                 if ( (void *) dst < (void *) korg1212->playDataBufsPtr ||
1331                      (void *) dst > (void *) korg1212->playDataBufsPtr[8].bufferData ) {
1332                         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_silence KERNEL EFAULT dst=%p iter=%d\n", dst, i);
1333                         return -EFAULT;
1334                 }
1335 #endif
1336                 memset((void*) dst + offset, 0, size);
1337                 dst++;
1338         }
1339
1340         return 0;
1341 }
1342
1343 static int snd_korg1212_copy_to(korg1212_t *korg1212, void __user *dst, int pos, int count, int offset, int size)
1344 {
1345         KorgAudioFrame * src =  korg1212->recordDataBufsPtr[0].bufferData + pos;
1346         int i, rc;
1347
1348 #if K1212_DEBUG_LEVEL > 2
1349         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_copy_to pos=%d offset=%d size=%d\n", pos, offset, size);
1350 #endif
1351         snd_assert(pos + count <= K1212_MAX_SAMPLES, return -EINVAL);
1352
1353         for (i=0; i < count; i++) {
1354 #if K1212_DEBUG_LEVEL > 0
1355                 if ( (void *) src < (void *) korg1212->recordDataBufsPtr ||
1356                      (void *) src > (void *) korg1212->recordDataBufsPtr[8].bufferData ) {
1357                         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_copy_to KERNEL EFAULT, src=%p dst=%p iter=%d\n", src, dst, i);
1358                         return -EFAULT;
1359                 }
1360 #endif
1361                 rc = copy_to_user(dst + offset, src, size);
1362                 if (rc) {
1363 #if K1212_DEBUG_LEVEL > 0
1364                         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_copy_to USER EFAULT src=%p dst=%p iter=%d\n", src, dst, i);
1365 #endif
1366                         return -EFAULT;
1367                 }
1368                 src++;
1369                 dst += size;
1370         }
1371
1372         return 0;
1373 }
1374
1375 static int snd_korg1212_copy_from(korg1212_t *korg1212, void __user *src, int pos, int count, int offset, int size)
1376 {
1377         KorgAudioFrame * dst =  korg1212->playDataBufsPtr[0].bufferData + pos;
1378         int i, rc;
1379
1380 #if K1212_DEBUG_LEVEL > 2
1381         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_copy_from pos=%d offset=%d size=%d count=%d\n", pos, offset, size, count);
1382 #endif
1383
1384         snd_assert(pos + count <= K1212_MAX_SAMPLES, return -EINVAL);
1385
1386         for (i=0; i < count; i++) {
1387 #if K1212_DEBUG_LEVEL > 0
1388                 if ( (void *) dst < (void *) korg1212->playDataBufsPtr ||
1389                      (void *) dst > (void *) korg1212->playDataBufsPtr[8].bufferData ) {
1390                         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_copy_from KERNEL EFAULT, src=%p dst=%p iter=%d\n", src, dst, i);
1391                         return -EFAULT;
1392                 }
1393 #endif
1394                 rc = copy_from_user((void*) dst + offset, src, size);
1395                 if (rc) {
1396 #if K1212_DEBUG_LEVEL > 0
1397                         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_copy_from USER EFAULT src=%p dst=%p iter=%d\n", src, dst, i);
1398 #endif
1399                         return -EFAULT;
1400                 }
1401                 dst++;
1402                 src += size;
1403         }
1404
1405         return 0;
1406 }
1407
1408 static void snd_korg1212_free_pcm(snd_pcm_t *pcm)
1409 {
1410         korg1212_t *korg1212 = (korg1212_t *) pcm->private_data;
1411
1412 #if K1212_DEBUG_LEVEL > 0
1413                 K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_free_pcm [%s]\n", stateName[korg1212->cardState]);
1414 #endif
1415
1416         korg1212->pcm = NULL;
1417 }
1418
1419 static int snd_korg1212_playback_open(snd_pcm_substream_t *substream)
1420 {
1421         unsigned long flags;
1422         korg1212_t *korg1212 = snd_pcm_substream_chip(substream);
1423         snd_pcm_runtime_t *runtime = substream->runtime;
1424
1425 #if K1212_DEBUG_LEVEL > 0
1426                 K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_playback_open [%s]\n", stateName[korg1212->cardState]);
1427 #endif
1428
1429         snd_pcm_set_sync(substream);    // ???
1430
1431         snd_korg1212_OpenCard(korg1212);
1432
1433         runtime->hw = snd_korg1212_playback_info;
1434         snd_pcm_set_runtime_buffer(substream, &korg1212->dma_play);
1435
1436         spin_lock_irqsave(&korg1212->lock, flags);
1437
1438         korg1212->playback_substream = substream;
1439         korg1212->playback_pid = current->pid;
1440         korg1212->periodsize = K1212_PERIODS;
1441         korg1212->channels = K1212_CHANNELS;
1442
1443         spin_unlock_irqrestore(&korg1212->lock, flags);
1444
1445         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, kPlayBufferFrames, kPlayBufferFrames);
1446         return 0;
1447 }
1448
1449
1450 static int snd_korg1212_capture_open(snd_pcm_substream_t *substream)
1451 {
1452         unsigned long flags;
1453         korg1212_t *korg1212 = snd_pcm_substream_chip(substream);
1454         snd_pcm_runtime_t *runtime = substream->runtime;
1455
1456 #if K1212_DEBUG_LEVEL > 0
1457                 K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_capture_open [%s]\n", stateName[korg1212->cardState]);
1458 #endif
1459
1460         snd_pcm_set_sync(substream);    // ???
1461
1462         snd_korg1212_OpenCard(korg1212);
1463
1464         runtime->hw = snd_korg1212_capture_info;
1465         snd_pcm_set_runtime_buffer(substream, &korg1212->dma_rec);
1466
1467         spin_lock_irqsave(&korg1212->lock, flags);
1468
1469         korg1212->capture_substream = substream;
1470         korg1212->capture_pid = current->pid;
1471         korg1212->periodsize = K1212_PERIODS;
1472         korg1212->channels = K1212_CHANNELS;
1473
1474         spin_unlock_irqrestore(&korg1212->lock, flags);
1475
1476         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, kPlayBufferFrames, kPlayBufferFrames);
1477         return 0;
1478 }
1479
1480 static int snd_korg1212_playback_close(snd_pcm_substream_t *substream)
1481 {
1482         unsigned long flags;
1483         korg1212_t *korg1212 = snd_pcm_substream_chip(substream);
1484
1485 #if K1212_DEBUG_LEVEL > 0
1486                 K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_playback_close [%s]\n", stateName[korg1212->cardState]);
1487 #endif
1488
1489         snd_korg1212_silence(korg1212, 0, K1212_MAX_SAMPLES, 0, korg1212->channels * 2);
1490
1491         spin_lock_irqsave(&korg1212->lock, flags);
1492
1493         korg1212->playback_pid = -1;
1494         korg1212->playback_substream = NULL;
1495         korg1212->periodsize = 0;
1496
1497         spin_unlock_irqrestore(&korg1212->lock, flags);
1498
1499         snd_korg1212_CloseCard(korg1212);
1500         return 0;
1501 }
1502
1503 static int snd_korg1212_capture_close(snd_pcm_substream_t *substream)
1504 {
1505         unsigned long flags;
1506         korg1212_t *korg1212 = snd_pcm_substream_chip(substream);
1507
1508 #if K1212_DEBUG_LEVEL > 0
1509                 K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_capture_close [%s]\n", stateName[korg1212->cardState]);
1510 #endif
1511
1512         spin_lock_irqsave(&korg1212->lock, flags);
1513
1514         korg1212->capture_pid = -1;
1515         korg1212->capture_substream = NULL;
1516         korg1212->periodsize = 0;
1517
1518         spin_unlock_irqrestore(&korg1212->lock, flags);
1519
1520         snd_korg1212_CloseCard(korg1212);
1521         return 0;
1522 }
1523
1524 static int snd_korg1212_ioctl(snd_pcm_substream_t *substream,
1525                              unsigned int cmd, void *arg)
1526 {
1527 #if K1212_DEBUG_LEVEL > 0
1528                 K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_ioctl: cmd=%d\n", cmd);
1529 #endif
1530
1531         if (cmd == SNDRV_PCM_IOCTL1_CHANNEL_INFO ) {
1532                 snd_pcm_channel_info_t *info = arg;
1533                 info->offset = 0;
1534                 info->first = info->channel * 16;
1535                 info->step = 256;
1536 #if K1212_DEBUG_LEVEL > 0
1537                 K1212_DEBUG_PRINTK("K1212_DEBUG: channel_info %d:, offset=%ld, first=%d, step=%d\n", info->channel, info->offset, info->first, info->step);
1538 #endif
1539                 return 0;
1540         }
1541
1542         return snd_pcm_lib_ioctl(substream, cmd, arg);
1543 }
1544
1545 static int snd_korg1212_hw_params(snd_pcm_substream_t *substream,
1546                              snd_pcm_hw_params_t *params)
1547 {
1548         unsigned long flags;
1549         korg1212_t *korg1212 = snd_pcm_substream_chip(substream);
1550         int err;
1551         pid_t this_pid;
1552         pid_t other_pid;
1553
1554 #if K1212_DEBUG_LEVEL > 0
1555                 K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_hw_params [%s]\n", stateName[korg1212->cardState]);
1556 #endif
1557
1558         spin_lock_irqsave(&korg1212->lock, flags);
1559
1560         if (substream->pstr->stream == SNDRV_PCM_STREAM_PLAYBACK) {
1561                 this_pid = korg1212->playback_pid;
1562                 other_pid = korg1212->capture_pid;
1563         } else {
1564                 this_pid = korg1212->capture_pid;
1565                 other_pid = korg1212->playback_pid;
1566         }
1567
1568         if ((other_pid > 0) && (this_pid != other_pid)) {
1569
1570                 /* The other stream is open, and not by the same
1571                    task as this one. Make sure that the parameters
1572                    that matter are the same.
1573                  */
1574
1575                 if ((int)params_rate(params) != korg1212->clkRate) {
1576                         spin_unlock_irqrestore(&korg1212->lock, flags);
1577                         _snd_pcm_hw_param_setempty(params, SNDRV_PCM_HW_PARAM_RATE);
1578                         return -EBUSY;
1579                 }
1580
1581                 spin_unlock_irqrestore(&korg1212->lock, flags);
1582                 return 0;
1583         }
1584
1585         if ((err = snd_korg1212_SetRate(korg1212, params_rate(params))) < 0) {
1586                 spin_unlock_irqrestore(&korg1212->lock, flags);
1587                 return err;
1588         }
1589
1590         korg1212->channels = params_channels(params);
1591         korg1212->periodsize = K1212_PERIOD_BYTES;
1592
1593         spin_unlock_irqrestore(&korg1212->lock, flags);
1594
1595         return 0;
1596 }
1597
1598 static int snd_korg1212_prepare(snd_pcm_substream_t *substream)
1599 {
1600         korg1212_t *korg1212 = snd_pcm_substream_chip(substream);
1601         int rc;
1602
1603 #if K1212_DEBUG_LEVEL > 0
1604                 K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_prepare [%s]\n", stateName[korg1212->cardState]);
1605 #endif
1606
1607         spin_lock_irq(&korg1212->lock);
1608
1609         /* FIXME: we should wait for ack! */
1610         if (korg1212->stop_pending_cnt > 0) {
1611 #if K1212_DEBUG_LEVEL > 0
1612                 K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_prepare - Stop is pending... [%s]\n", stateName[korg1212->cardState]);
1613 #endif
1614                 spin_unlock_irq(&korg1212->lock);
1615                 return -EAGAIN;
1616                 /*
1617                 writel(0, &korg1212->sharedBufferPtr->cardCommand);
1618                 del_timer(&korg1212->timer);
1619                 korg1212->stop_pending_cnt = 0;
1620                 */
1621         }
1622
1623         rc = snd_korg1212_SetupForPlay(korg1212);
1624
1625         korg1212->currentBuffer = 0;
1626
1627         spin_unlock_irq(&korg1212->lock);
1628
1629         return rc ? -EINVAL : 0;
1630 }
1631
1632 static int snd_korg1212_trigger(snd_pcm_substream_t *substream,
1633                            int cmd)
1634 {
1635         korg1212_t *korg1212 = snd_pcm_substream_chip(substream);
1636         int rc;
1637
1638 #if K1212_DEBUG_LEVEL > 0
1639                 K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_trigger [%s] cmd=%d\n", stateName[korg1212->cardState], cmd);
1640 #endif
1641
1642         spin_lock(&korg1212->lock);
1643         switch (cmd) {
1644                 case SNDRV_PCM_TRIGGER_START:
1645 /*
1646                         if (korg1212->running) {
1647 #if K1212_DEBUG_LEVEL > 1
1648                                 K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_trigger: Already running?\n");
1649 #endif
1650                                 break;
1651                         }
1652 */
1653                         korg1212->running++;
1654                         rc = snd_korg1212_TriggerPlay(korg1212);
1655                         break;
1656
1657                 case SNDRV_PCM_TRIGGER_STOP:
1658 /*
1659                         if (!korg1212->running) {
1660 #if K1212_DEBUG_LEVEL > 1
1661                                 K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_trigger: Already stopped?\n");
1662 #endif
1663                                 break;
1664                         }
1665 */
1666                         korg1212->running--;
1667                         rc = snd_korg1212_StopPlay(korg1212);
1668                         break;
1669
1670                 default:
1671                         rc = 1;
1672                         break;
1673         }
1674         spin_unlock(&korg1212->lock);
1675         return rc ? -EINVAL : 0;
1676 }
1677
1678 static snd_pcm_uframes_t snd_korg1212_playback_pointer(snd_pcm_substream_t *substream)
1679 {
1680         korg1212_t *korg1212 = snd_pcm_substream_chip(substream);
1681         snd_pcm_uframes_t pos;
1682
1683         pos = korg1212->currentBuffer * kPlayBufferFrames;
1684
1685 #if K1212_DEBUG_LEVEL > 2
1686         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_playback_pointer [%s] %ld\n",
1687                         stateName[korg1212->cardState], pos);
1688 #endif
1689
1690         return pos;
1691 }
1692
1693 static snd_pcm_uframes_t snd_korg1212_capture_pointer(snd_pcm_substream_t *substream)
1694 {
1695         korg1212_t *korg1212 = snd_pcm_substream_chip(substream);
1696         snd_pcm_uframes_t pos;
1697
1698         pos = korg1212->currentBuffer * kPlayBufferFrames;
1699
1700 #if K1212_DEBUG_LEVEL > 2
1701         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_capture_pointer [%s] %ld\n",
1702                         stateName[korg1212->cardState], pos);
1703 #endif
1704
1705         return pos;
1706 }
1707
1708 static int snd_korg1212_playback_copy(snd_pcm_substream_t *substream,
1709                         int channel, /* not used (interleaved data) */
1710                         snd_pcm_uframes_t pos,
1711                         void __user *src,
1712                         snd_pcm_uframes_t count)
1713 {
1714         korg1212_t *korg1212 = snd_pcm_substream_chip(substream);
1715
1716 #if K1212_DEBUG_LEVEL > 2
1717                 K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_playback_copy [%s] %ld %ld\n", stateName[korg1212->cardState], pos, count);
1718 #endif
1719
1720         return snd_korg1212_copy_from(korg1212, src, pos, count, 0, korg1212->channels * 2);
1721
1722 }
1723
1724 static int snd_korg1212_playback_silence(snd_pcm_substream_t *substream,
1725                            int channel, /* not used (interleaved data) */
1726                            snd_pcm_uframes_t pos,
1727                            snd_pcm_uframes_t count)
1728 {
1729         korg1212_t *korg1212 = snd_pcm_substream_chip(substream);
1730
1731 #if K1212_DEBUG_LEVEL > 0
1732                 K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_playback_silence [%s]\n", stateName[korg1212->cardState]);
1733 #endif
1734
1735         return snd_korg1212_silence(korg1212, pos, count, 0, korg1212->channels * 2);
1736 }
1737
1738 static int snd_korg1212_capture_copy(snd_pcm_substream_t *substream,
1739                         int channel, /* not used (interleaved data) */
1740                         snd_pcm_uframes_t pos,
1741                         void __user *dst,
1742                         snd_pcm_uframes_t count)
1743 {
1744         korg1212_t *korg1212 = snd_pcm_substream_chip(substream);
1745
1746 #if K1212_DEBUG_LEVEL > 2
1747                 K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_capture_copy [%s] %ld %ld\n", stateName[korg1212->cardState], pos, count);
1748 #endif
1749
1750         return snd_korg1212_copy_to(korg1212, dst, pos, count, 0, korg1212->channels * 2);
1751 }
1752
1753 static snd_pcm_ops_t snd_korg1212_playback_ops = {
1754         .open =         snd_korg1212_playback_open,
1755         .close =        snd_korg1212_playback_close,
1756         .ioctl =        snd_korg1212_ioctl,
1757         .hw_params =    snd_korg1212_hw_params,
1758         .prepare =      snd_korg1212_prepare,
1759         .trigger =      snd_korg1212_trigger,
1760         .pointer =      snd_korg1212_playback_pointer,
1761         .copy =         snd_korg1212_playback_copy,
1762         .silence =      snd_korg1212_playback_silence,
1763 };
1764
1765 static snd_pcm_ops_t snd_korg1212_capture_ops = {
1766         .open =         snd_korg1212_capture_open,
1767         .close =        snd_korg1212_capture_close,
1768         .ioctl =        snd_korg1212_ioctl,
1769         .hw_params =    snd_korg1212_hw_params,
1770         .prepare =      snd_korg1212_prepare,
1771         .trigger =      snd_korg1212_trigger,
1772         .pointer =      snd_korg1212_capture_pointer,
1773         .copy =         snd_korg1212_capture_copy,
1774 };
1775
1776 /*
1777  * Control Interface
1778  */
1779
1780 static int snd_korg1212_control_phase_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
1781 {
1782         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1783         uinfo->count = (kcontrol->private_value >= 8) ? 2 : 1;
1784         return 0;
1785 }
1786
1787 static int snd_korg1212_control_phase_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *u)
1788 {
1789         korg1212_t *korg1212 = snd_kcontrol_chip(kcontrol);
1790         int i = kcontrol->private_value;
1791
1792         spin_lock_irq(&korg1212->lock);
1793
1794         u->value.integer.value[0] = korg1212->volumePhase[i];
1795
1796         if (i >= 8)
1797                 u->value.integer.value[1] = korg1212->volumePhase[i+1];
1798
1799         spin_unlock_irq(&korg1212->lock);
1800
1801         return 0;
1802 }
1803
1804 static int snd_korg1212_control_phase_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *u)
1805 {
1806         korg1212_t *korg1212 = snd_kcontrol_chip(kcontrol);
1807         int change = 0;
1808         int i, val;
1809
1810         spin_lock_irq(&korg1212->lock);
1811
1812         i = kcontrol->private_value;
1813
1814         korg1212->volumePhase[i] = u->value.integer.value[0];
1815
1816         val = korg1212->sharedBufferPtr->volumeData[kcontrol->private_value];
1817
1818         if ((u->value.integer.value[0] > 0) != (val < 0)) {
1819                 val = abs(val) * (korg1212->volumePhase[i] > 0 ? -1 : 1);
1820                 korg1212->sharedBufferPtr->volumeData[i] = val;
1821                 change = 1;
1822         }
1823
1824         if (i >= 8) {
1825                 korg1212->volumePhase[i+1] = u->value.integer.value[1];
1826
1827                 val = korg1212->sharedBufferPtr->volumeData[kcontrol->private_value+1];
1828
1829                 if ((u->value.integer.value[1] > 0) != (val < 0)) {
1830                         val = abs(val) * (korg1212->volumePhase[i+1] > 0 ? -1 : 1);
1831                         korg1212->sharedBufferPtr->volumeData[i+1] = val;
1832                         change = 1;
1833                 }
1834         }
1835
1836         spin_unlock_irq(&korg1212->lock);
1837
1838         return change;
1839 }
1840
1841 static int snd_korg1212_control_volume_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
1842 {
1843         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1844         uinfo->count = (kcontrol->private_value >= 8) ? 2 : 1;
1845         uinfo->value.integer.min = k1212MinVolume;
1846         uinfo->value.integer.max = k1212MaxVolume;
1847         return 0;
1848 }
1849
1850 static int snd_korg1212_control_volume_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *u)
1851 {
1852         korg1212_t *korg1212 = snd_kcontrol_chip(kcontrol);
1853         int i;
1854
1855         spin_lock_irq(&korg1212->lock);
1856
1857         i = kcontrol->private_value;
1858         u->value.integer.value[0] = abs(korg1212->sharedBufferPtr->volumeData[i]);
1859
1860         if (i >= 8)
1861                 u->value.integer.value[1] = abs(korg1212->sharedBufferPtr->volumeData[i+1]);
1862
1863         spin_unlock_irq(&korg1212->lock);
1864
1865         return 0;
1866 }
1867
1868 static int snd_korg1212_control_volume_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *u)
1869 {
1870         korg1212_t *korg1212 = snd_kcontrol_chip(kcontrol);
1871         int change = 0;
1872         int i;
1873         int val;
1874
1875         spin_lock_irq(&korg1212->lock);
1876
1877         i = kcontrol->private_value;
1878
1879         if (u->value.integer.value[0] != abs(korg1212->sharedBufferPtr->volumeData[i])) {
1880                 val = korg1212->volumePhase[i] > 0 ? -1 : 1;
1881                 val *= u->value.integer.value[0];
1882                 korg1212->sharedBufferPtr->volumeData[i] = val;
1883                 change = 1;
1884         }
1885
1886         if (i >= 8) {
1887                 if (u->value.integer.value[1] != abs(korg1212->sharedBufferPtr->volumeData[i+1])) {
1888                         val = korg1212->volumePhase[i+1] > 0 ? -1 : 1;
1889                         val *= u->value.integer.value[1];
1890                         korg1212->sharedBufferPtr->volumeData[i+1] = val;
1891                         change = 1;
1892                 }
1893         }
1894
1895         spin_unlock_irq(&korg1212->lock);
1896
1897         return change;
1898 }
1899
1900 static int snd_korg1212_control_route_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
1901 {
1902         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1903         uinfo->count = (kcontrol->private_value >= 8) ? 2 : 1;
1904         uinfo->value.enumerated.items = kAudioChannels;
1905         if (uinfo->value.enumerated.item > kAudioChannels-1) {
1906                 uinfo->value.enumerated.item = kAudioChannels-1;
1907         }
1908         strcpy(uinfo->value.enumerated.name, channelName[uinfo->value.enumerated.item]);
1909         return 0;
1910 }
1911
1912 static int snd_korg1212_control_route_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *u)
1913 {
1914         korg1212_t *korg1212 = snd_kcontrol_chip(kcontrol);
1915         int i;
1916
1917         spin_lock_irq(&korg1212->lock);
1918
1919         i = kcontrol->private_value;
1920         u->value.enumerated.item[0] = korg1212->sharedBufferPtr->routeData[i];
1921
1922         if (i >= 8)
1923                 u->value.enumerated.item[1] = korg1212->sharedBufferPtr->routeData[i+1];
1924
1925         spin_unlock_irq(&korg1212->lock);
1926
1927         return 0;
1928 }
1929
1930 static int snd_korg1212_control_route_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *u)
1931 {
1932         korg1212_t *korg1212 = snd_kcontrol_chip(kcontrol);
1933         int change = 0, i;
1934
1935         spin_lock_irq(&korg1212->lock);
1936
1937         i = kcontrol->private_value;
1938
1939         if (u->value.enumerated.item[0] != (unsigned) korg1212->sharedBufferPtr->volumeData[i]) {
1940                 korg1212->sharedBufferPtr->routeData[i] = u->value.enumerated.item[0];
1941                 change = 1;
1942         }
1943
1944         if (i >= 8) {
1945                 if (u->value.enumerated.item[1] != (unsigned) korg1212->sharedBufferPtr->volumeData[i+1]) {
1946                         korg1212->sharedBufferPtr->routeData[i+1] = u->value.enumerated.item[1];
1947                         change = 1;
1948                 }
1949         }
1950
1951         spin_unlock_irq(&korg1212->lock);
1952
1953         return change;
1954 }
1955
1956 static int snd_korg1212_control_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
1957 {
1958         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1959         uinfo->count = 2;
1960         uinfo->value.integer.min = k1212MaxADCSens;
1961         uinfo->value.integer.max = k1212MinADCSens;
1962         return 0;
1963 }
1964
1965 static int snd_korg1212_control_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *u)
1966 {
1967         korg1212_t *korg1212 = snd_kcontrol_chip(kcontrol);
1968
1969         spin_lock_irq(&korg1212->lock);
1970
1971         u->value.integer.value[0] = korg1212->leftADCInSens;
1972         u->value.integer.value[1] = korg1212->rightADCInSens;
1973
1974         spin_unlock_irq(&korg1212->lock);
1975
1976         return 0;
1977 }
1978
1979 static int snd_korg1212_control_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *u)
1980 {
1981         korg1212_t *korg1212 = snd_kcontrol_chip(kcontrol);
1982         int change = 0;
1983
1984         spin_lock_irq(&korg1212->lock);
1985
1986         if (u->value.integer.value[0] != korg1212->leftADCInSens) {
1987                 korg1212->leftADCInSens = u->value.integer.value[0];
1988                 change = 1;
1989         }
1990         if (u->value.integer.value[1] != korg1212->rightADCInSens) {
1991                 korg1212->rightADCInSens = u->value.integer.value[1];
1992                 change = 1;
1993         }
1994
1995         spin_unlock_irq(&korg1212->lock);
1996
1997         if (change)
1998                 snd_korg1212_WriteADCSensitivity(korg1212);
1999
2000         return change;
2001 }
2002
2003 static int snd_korg1212_control_sync_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
2004 {
2005         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2006         uinfo->count = 1;
2007         uinfo->value.enumerated.items = 3;
2008         if (uinfo->value.enumerated.item > 2) {
2009                 uinfo->value.enumerated.item = 2;
2010         }
2011         strcpy(uinfo->value.enumerated.name, clockSourceTypeName[uinfo->value.enumerated.item]);
2012         return 0;
2013 }
2014
2015 static int snd_korg1212_control_sync_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
2016 {
2017         korg1212_t *korg1212 = snd_kcontrol_chip(kcontrol);
2018
2019         spin_lock_irq(&korg1212->lock);
2020
2021         ucontrol->value.enumerated.item[0] = korg1212->clkSource;
2022
2023         spin_unlock_irq(&korg1212->lock);
2024         return 0;
2025 }
2026
2027 static int snd_korg1212_control_sync_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
2028 {
2029         korg1212_t *korg1212 = snd_kcontrol_chip(kcontrol);
2030         unsigned int val;
2031         int change;
2032
2033         val = ucontrol->value.enumerated.item[0] % 3;
2034         spin_lock_irq(&korg1212->lock);
2035         change = val != korg1212->clkSource;
2036         snd_korg1212_SetClockSource(korg1212, val);
2037         spin_unlock_irq(&korg1212->lock);
2038         return change;
2039 }
2040
2041 #define MON_MIXER(ord,c_name)                                                                   \
2042         {                                                                                       \
2043                 .access =       SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,       \
2044                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,                                     \
2045                 .name =         c_name " Monitor Volume",                                       \
2046                 .info =         snd_korg1212_control_volume_info,                               \
2047                 .get =          snd_korg1212_control_volume_get,                                \
2048                 .put =          snd_korg1212_control_volume_put,                                \
2049                 .private_value = ord,                                                           \
2050         },                                                                                      \
2051         {                                                                                       \
2052                 .access =       SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,       \
2053                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,                                     \
2054                 .name =         c_name " Monitor Route",                                        \
2055                 .info =         snd_korg1212_control_route_info,                                \
2056                 .get =          snd_korg1212_control_route_get,                                 \
2057                 .put =          snd_korg1212_control_route_put,                                 \
2058                 .private_value = ord,                                                           \
2059         },                                                                                      \
2060         {                                                                                       \
2061                 .access =       SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,       \
2062                 .iface =        SNDRV_CTL_ELEM_IFACE_PCM,                                       \
2063                 .name =         c_name " Monitor Phase Invert",                                 \
2064                 .info =         snd_korg1212_control_phase_info,                                \
2065                 .get =          snd_korg1212_control_phase_get,                                 \
2066                 .put =          snd_korg1212_control_phase_put,                                 \
2067                 .private_value = ord,                                                           \
2068         }
2069
2070 static snd_kcontrol_new_t snd_korg1212_controls[] = {
2071         MON_MIXER(8, "Analog"),
2072         MON_MIXER(10, "SPDIF"),
2073         MON_MIXER(0, "ADAT-1"), MON_MIXER(1, "ADAT-2"), MON_MIXER(2, "ADAT-3"), MON_MIXER(3, "ADAT-4"),
2074         MON_MIXER(4, "ADAT-5"), MON_MIXER(5, "ADAT-6"), MON_MIXER(6, "ADAT-7"), MON_MIXER(7, "ADAT-8"),
2075         {
2076                 .access =       SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,
2077                 .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
2078                 .name =         "Sync Source",
2079                 .info =         snd_korg1212_control_sync_info,
2080                 .get =          snd_korg1212_control_sync_get,
2081                 .put =          snd_korg1212_control_sync_put,
2082         },
2083         {
2084                 .access =       SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,
2085                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2086                 .name =         "ADC Attenuation",
2087                 .info =         snd_korg1212_control_info,
2088                 .get =          snd_korg1212_control_get,
2089                 .put =          snd_korg1212_control_put,
2090         }
2091 };
2092
2093 /*
2094  * proc interface
2095  */
2096
2097 static void snd_korg1212_proc_read(snd_info_entry_t *entry, snd_info_buffer_t *buffer)
2098 {
2099         int n;
2100         korg1212_t *korg1212 = (korg1212_t *)entry->private_data;
2101
2102         snd_iprintf(buffer, korg1212->card->longname);
2103         snd_iprintf(buffer, " (index #%d)\n", korg1212->card->number + 1);
2104         snd_iprintf(buffer, "\nGeneral settings\n");
2105         snd_iprintf(buffer, "    period size: %Zd bytes\n", K1212_PERIOD_BYTES);
2106         snd_iprintf(buffer, "     clock mode: %s\n", clockSourceName[korg1212->clkSrcRate] );
2107         snd_iprintf(buffer, "  left ADC Sens: %d\n", korg1212->leftADCInSens );
2108         snd_iprintf(buffer, " right ADC Sens: %d\n", korg1212->rightADCInSens );
2109         snd_iprintf(buffer, "    Volume Info:\n");
2110         for (n=0; n<kAudioChannels; n++)
2111                 snd_iprintf(buffer, " Channel %d: %s -> %s [%d]\n", n,
2112                                     channelName[n],
2113                                     channelName[korg1212->sharedBufferPtr->routeData[n]],
2114                                     korg1212->sharedBufferPtr->volumeData[n]);
2115         snd_iprintf(buffer, "\nGeneral status\n");
2116         snd_iprintf(buffer, " ADAT Time Code: %d\n", korg1212->sharedBufferPtr->AdatTimeCode);
2117         snd_iprintf(buffer, "     Card State: %s\n", stateName[korg1212->cardState]);
2118         snd_iprintf(buffer, "Idle mon. State: %d\n", korg1212->idleMonitorOn);
2119         snd_iprintf(buffer, "Cmd retry count: %d\n", korg1212->cmdRetryCount);
2120         snd_iprintf(buffer, "      Irq count: %ld\n", korg1212->irqcount);
2121 }
2122
2123 static void __devinit snd_korg1212_proc_init(korg1212_t *korg1212)
2124 {
2125         snd_info_entry_t *entry;
2126
2127         if (! snd_card_proc_new(korg1212->card, "korg1212", &entry))
2128                 snd_info_set_text_ops(entry, korg1212, 1024, snd_korg1212_proc_read);
2129 }
2130
2131 static int
2132 snd_korg1212_free(korg1212_t *korg1212)
2133 {
2134         snd_korg1212_TurnOffIdleMonitor(korg1212);
2135
2136         if (korg1212->irq >= 0) {
2137                 synchronize_irq(korg1212->irq);
2138                 snd_korg1212_DisableCardInterrupts(korg1212);
2139                 free_irq(korg1212->irq, (void *)korg1212);
2140                 korg1212->irq = -1;
2141         }
2142
2143         if (korg1212->iobase != NULL) {
2144                 iounmap(korg1212->iobase);
2145                 korg1212->iobase = NULL;
2146         }
2147
2148         pci_release_regions(korg1212->pci);
2149
2150         // ----------------------------------------------------
2151         // free up memory resources used for the DSP download.
2152         // ----------------------------------------------------
2153         if (korg1212->dma_dsp.area) {
2154                 snd_dma_free_pages(&korg1212->dma_dsp);
2155                 korg1212->dma_dsp.area = NULL;
2156         }
2157
2158 #ifndef K1212_LARGEALLOC
2159
2160         // ------------------------------------------------------
2161         // free up memory resources used for the Play/Rec Buffers
2162         // ------------------------------------------------------
2163         if (korg1212->dma_play.area) {
2164                 snd_dma_free_pages(&korg1212->dma_play);
2165                 korg1212->dma_play.area = NULL;
2166         }
2167
2168         if (korg1212->dma_rec.area) {
2169                 snd_dma_free_pages(&korg1212->dma_rec);
2170                 korg1212->dma_rec.area = NULL;
2171         }
2172
2173 #endif
2174
2175         // ----------------------------------------------------
2176         // free up memory resources used for the Shared Buffers
2177         // ----------------------------------------------------
2178         if (korg1212->dma_shared.area) {
2179                 snd_dma_free_pages(&korg1212->dma_shared);
2180                 korg1212->dma_shared.area = NULL;
2181         }
2182
2183         pci_disable_device(korg1212->pci);
2184         kfree(korg1212);
2185         return 0;
2186 }
2187
2188 static int snd_korg1212_dev_free(snd_device_t *device)
2189 {
2190         korg1212_t *korg1212 = device->device_data;
2191 #if K1212_DEBUG_LEVEL > 0
2192         K1212_DEBUG_PRINTK("K1212_DEBUG: Freeing device\n");
2193 #endif
2194         return snd_korg1212_free(korg1212);
2195 }
2196
2197 static int __devinit snd_korg1212_create(snd_card_t * card, struct pci_dev *pci,
2198                                          korg1212_t ** rchip)
2199
2200 {
2201         int err;
2202         unsigned int i;
2203         unsigned ioport_size, iomem_size, iomem2_size;
2204         korg1212_t * korg1212;
2205
2206         static snd_device_ops_t ops = {
2207                 .dev_free = snd_korg1212_dev_free,
2208         };
2209
2210         * rchip = NULL;
2211         if ((err = pci_enable_device(pci)) < 0)
2212                 return err;
2213
2214         korg1212 = kcalloc(1, sizeof(*korg1212), GFP_KERNEL);
2215         if (korg1212 == NULL) {
2216                 pci_disable_device(pci);
2217                 return -ENOMEM;
2218         }
2219
2220         korg1212->card = card;
2221         korg1212->pci = pci;
2222
2223         init_waitqueue_head(&korg1212->wait);
2224         spin_lock_init(&korg1212->lock);
2225         init_MUTEX(&korg1212->open_mutex);
2226         init_timer(&korg1212->timer);
2227         korg1212->timer.function = snd_korg1212_timer_func;
2228         korg1212->timer.data = (unsigned long)korg1212;
2229
2230         korg1212->irq = -1;
2231         korg1212->clkSource = K1212_CLKIDX_Local;
2232         korg1212->clkRate = 44100;
2233         korg1212->inIRQ = 0;
2234         korg1212->running = 0;
2235         korg1212->opencnt = 0;
2236         korg1212->playcnt = 0;
2237         korg1212->setcnt = 0;
2238         korg1212->playback_pid = -1;
2239         korg1212->capture_pid = -1;
2240         snd_korg1212_setCardState(korg1212, K1212_STATE_UNINITIALIZED);
2241         korg1212->idleMonitorOn = 0;
2242         korg1212->clkSrcRate = K1212_CLKIDX_LocalAt44_1K;
2243         korg1212->leftADCInSens = k1212MaxADCSens;
2244         korg1212->rightADCInSens = k1212MaxADCSens;
2245
2246         for (i=0; i<kAudioChannels; i++)
2247                 korg1212->volumePhase[i] = 0;
2248
2249         if ((err = pci_request_regions(pci, "korg1212")) < 0) {
2250                 kfree(korg1212);
2251                 pci_disable_device(pci);
2252                 return err;
2253         }
2254
2255         korg1212->iomem = pci_resource_start(korg1212->pci, 0);
2256         korg1212->ioport = pci_resource_start(korg1212->pci, 1);
2257         korg1212->iomem2 = pci_resource_start(korg1212->pci, 2);
2258
2259         iomem_size = pci_resource_len(korg1212->pci, 0);
2260         ioport_size = pci_resource_len(korg1212->pci, 1);
2261         iomem2_size = pci_resource_len(korg1212->pci, 2);
2262
2263 #if K1212_DEBUG_LEVEL > 0
2264         K1212_DEBUG_PRINTK("K1212_DEBUG: resources:\n"
2265                    "    iomem = 0x%lx (%d)\n"
2266                    "    ioport  = 0x%lx (%d)\n"
2267                    "    iomem = 0x%lx (%d)\n"
2268                    "    [%s]\n",
2269                    korg1212->iomem, iomem_size,
2270                    korg1212->ioport, ioport_size,
2271                    korg1212->iomem2, iomem2_size,
2272                    stateName[korg1212->cardState]);
2273 #endif
2274
2275         if ((korg1212->iobase = ioremap(korg1212->iomem, iomem_size)) == NULL) {
2276                 snd_printk(KERN_ERR "unable to remap memory region 0x%lx-0x%lx\n", korg1212->iomem,
2277                            korg1212->iomem + iomem_size - 1);
2278                 snd_korg1212_free(korg1212);
2279                 return -EBUSY;
2280         }
2281
2282         err = request_irq(pci->irq, snd_korg1212_interrupt,
2283                           SA_INTERRUPT|SA_SHIRQ,
2284                           "korg1212", (void *) korg1212);
2285
2286         if (err) {
2287                 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
2288                 snd_korg1212_free(korg1212);
2289                 return -EBUSY;
2290         }
2291
2292         korg1212->irq = pci->irq;
2293
2294         pci_set_master(korg1212->pci);
2295
2296         korg1212->statusRegPtr = (u32 __iomem *) (korg1212->iobase + STATUS_REG_OFFSET);
2297         korg1212->outDoorbellPtr = (u32 __iomem *) (korg1212->iobase + OUT_DOORBELL_OFFSET);
2298         korg1212->inDoorbellPtr = (u32 __iomem *) (korg1212->iobase + IN_DOORBELL_OFFSET);
2299         korg1212->mailbox0Ptr = (u32 __iomem *) (korg1212->iobase + MAILBOX0_OFFSET);
2300         korg1212->mailbox1Ptr = (u32 __iomem *) (korg1212->iobase + MAILBOX1_OFFSET);
2301         korg1212->mailbox2Ptr = (u32 __iomem *) (korg1212->iobase + MAILBOX2_OFFSET);
2302         korg1212->mailbox3Ptr = (u32 __iomem *) (korg1212->iobase + MAILBOX3_OFFSET);
2303         korg1212->controlRegPtr = (u32 __iomem *) (korg1212->iobase + PCI_CONTROL_OFFSET);
2304         korg1212->sensRegPtr = (u16 __iomem *) (korg1212->iobase + SENS_CONTROL_OFFSET);
2305         korg1212->idRegPtr = (u32 __iomem *) (korg1212->iobase + DEV_VEND_ID_OFFSET);
2306
2307 #if K1212_DEBUG_LEVEL > 0
2308         K1212_DEBUG_PRINTK("K1212_DEBUG: card registers:\n"
2309                    "    Status register = 0x%p\n"
2310                    "    OutDoorbell     = 0x%p\n"
2311                    "    InDoorbell      = 0x%p\n"
2312                    "    Mailbox0        = 0x%p\n"
2313                    "    Mailbox1        = 0x%p\n"
2314                    "    Mailbox2        = 0x%p\n"
2315                    "    Mailbox3        = 0x%p\n"
2316                    "    ControlReg      = 0x%p\n"
2317                    "    SensReg         = 0x%p\n"
2318                    "    IDReg           = 0x%p\n"
2319                    "    [%s]\n",
2320                    korg1212->statusRegPtr,
2321                    korg1212->outDoorbellPtr,
2322                    korg1212->inDoorbellPtr,
2323                    korg1212->mailbox0Ptr,
2324                    korg1212->mailbox1Ptr,
2325                    korg1212->mailbox2Ptr,
2326                    korg1212->mailbox3Ptr,
2327                    korg1212->controlRegPtr,
2328                    korg1212->sensRegPtr,
2329                    korg1212->idRegPtr,
2330                    stateName[korg1212->cardState]);
2331 #endif
2332
2333         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
2334                                 sizeof(KorgSharedBuffer), &korg1212->dma_shared) < 0) {
2335                 snd_printk(KERN_ERR "can not allocate shared buffer memory (%Zd bytes)\n", sizeof(KorgSharedBuffer));
2336                 snd_korg1212_free(korg1212);
2337                 return -ENOMEM;
2338         }
2339         korg1212->sharedBufferPtr = (KorgSharedBuffer *)korg1212->dma_shared.area;
2340         korg1212->sharedBufferPhy = korg1212->dma_shared.addr;
2341
2342 #if K1212_DEBUG_LEVEL > 0
2343         K1212_DEBUG_PRINTK("K1212_DEBUG: Shared Buffer Area = 0x%p (0x%08lx), %d bytes\n", korg1212->sharedBufferPtr, korg1212->sharedBufferPhy, sizeof(KorgSharedBuffer));
2344 #endif
2345
2346 #ifndef K1212_LARGEALLOC
2347
2348         korg1212->DataBufsSize = sizeof(KorgAudioBuffer) * kNumBuffers;
2349
2350         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
2351                                 korg1212->DataBufsSize, &korg1212->dma_play) < 0) {
2352                 snd_printk(KERN_ERR "can not allocate play data buffer memory (%d bytes)\n", korg1212->DataBufsSize);
2353                 snd_korg1212_free(korg1212);
2354                 return -ENOMEM;
2355         }
2356         korg1212->playDataBufsPtr = (KorgAudioBuffer *)korg1212->dma_play.area;
2357         korg1212->PlayDataPhy = korg1212->dma_play.addr;
2358
2359 #if K1212_DEBUG_LEVEL > 0
2360         K1212_DEBUG_PRINTK("K1212_DEBUG: Play Data Area = 0x%p (0x%08x), %d bytes\n",
2361                 korg1212->playDataBufsPtr, korg1212->PlayDataPhy, korg1212->DataBufsSize);
2362 #endif
2363
2364         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
2365                                 korg1212->DataBufsSize, &korg1212->dma_rec) < 0) {
2366                 snd_printk(KERN_ERR "can not allocate record data buffer memory (%d bytes)\n", korg1212->DataBufsSize);
2367                 snd_korg1212_free(korg1212);
2368                 return -ENOMEM;
2369         }
2370         korg1212->recordDataBufsPtr = (KorgAudioBuffer *)korg1212->dma_rec.area;
2371         korg1212->RecDataPhy = korg1212->dma_rec.addr;
2372
2373 #if K1212_DEBUG_LEVEL > 0
2374         K1212_DEBUG_PRINTK("K1212_DEBUG: Record Data Area = 0x%p (0x%08x), %d bytes\n",
2375                 korg1212->recordDataBufsPtr, korg1212->RecDataPhy, korg1212->DataBufsSize);
2376 #endif
2377
2378 #else // K1212_LARGEALLOC
2379
2380         korg1212->recordDataBufsPtr = korg1212->sharedBufferPtr->recordDataBufs;
2381         korg1212->playDataBufsPtr = korg1212->sharedBufferPtr->playDataBufs;
2382         korg1212->PlayDataPhy = (u32) &((KorgSharedBuffer *) korg1212->sharedBufferPhy)->playDataBufs;
2383         korg1212->RecDataPhy  = (u32) &((KorgSharedBuffer *) korg1212->sharedBufferPhy)->recordDataBufs;
2384
2385 #endif // K1212_LARGEALLOC
2386
2387         korg1212->dspCodeSize = sizeof (dspCode);
2388
2389         korg1212->VolumeTablePhy = korg1212->sharedBufferPhy +
2390                 offsetof(KorgSharedBuffer, volumeData);
2391         korg1212->RoutingTablePhy = korg1212->sharedBufferPhy +
2392                 offsetof(KorgSharedBuffer, routeData);
2393         korg1212->AdatTimeCodePhy = korg1212->sharedBufferPhy +
2394                 offsetof(KorgSharedBuffer, AdatTimeCode);
2395
2396         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
2397                                 korg1212->dspCodeSize, &korg1212->dma_dsp) < 0) {
2398                 snd_printk(KERN_ERR "can not allocate dsp code memory (%d bytes)\n", korg1212->dspCodeSize);
2399                 snd_korg1212_free(korg1212);
2400                 return -ENOMEM;
2401         }
2402
2403 #if K1212_DEBUG_LEVEL > 0
2404         K1212_DEBUG_PRINTK("K1212_DEBUG: DSP Code area = 0x%p (0x%08x) %d bytes [%s]\n",
2405                    korg1212->dma_dsp.area, korg1212->dma_dsp.addr, korg1212->dspCodeSize,
2406                    stateName[korg1212->cardState]);
2407 #endif
2408
2409         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_RebootCard, 0, 0, 0, 0);
2410
2411 #if K1212_DEBUG_LEVEL > 0
2412         if (rc) K1212_DEBUG_PRINTK("K1212_DEBUG: Reboot Card - RC = %d [%s]\n", rc, stateName[korg1212->cardState]);
2413 #endif
2414
2415         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, korg1212, &ops)) < 0) {
2416                 snd_korg1212_free(korg1212);
2417                 return err;
2418         }
2419
2420         snd_korg1212_EnableCardInterrupts(korg1212);
2421
2422         mdelay(CARD_BOOT_DELAY_IN_MS);
2423
2424         if (snd_korg1212_downloadDSPCode(korg1212))
2425                 return -EBUSY;
2426
2427         printk(KERN_INFO "dspMemPhy       = %08x U[%08x]\n"
2428                "PlayDataPhy     = %08x L[%08x]\n"
2429                "RecDataPhy      = %08x L[%08x]\n"
2430                "VolumeTablePhy  = %08x L[%08x]\n"
2431                "RoutingTablePhy = %08x L[%08x]\n"
2432                "AdatTimeCodePhy = %08x L[%08x]\n",
2433                (int)korg1212->dma_dsp.addr,    UpperWordSwap(korg1212->dma_dsp.addr),
2434                korg1212->PlayDataPhy,     LowerWordSwap(korg1212->PlayDataPhy),
2435                korg1212->RecDataPhy,      LowerWordSwap(korg1212->RecDataPhy),
2436                korg1212->VolumeTablePhy,  LowerWordSwap(korg1212->VolumeTablePhy),
2437                korg1212->RoutingTablePhy, LowerWordSwap(korg1212->RoutingTablePhy),
2438                korg1212->AdatTimeCodePhy, LowerWordSwap(korg1212->AdatTimeCodePhy));
2439
2440         if ((err = snd_pcm_new(korg1212->card, "korg1212", 0, 1, 1, &korg1212->pcm)) < 0)
2441                 return err;
2442
2443         korg1212->pcm->private_data = korg1212;
2444         korg1212->pcm->private_free = snd_korg1212_free_pcm;
2445         strcpy(korg1212->pcm->name, "korg1212");
2446
2447         snd_pcm_set_ops(korg1212->pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_korg1212_playback_ops);
2448
2449         snd_pcm_set_ops(korg1212->pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_korg1212_capture_ops);
2450
2451         korg1212->pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
2452
2453         //snd_pcm_lib_preallocate_pages_for_all(korg1212->pcm,
2454         //                      K1212_MAX_BUF_SIZE, K1212_MAX_BUF_SIZE, GFP_KERNEL);
2455
2456         for (i = 0; i < ARRAY_SIZE(snd_korg1212_controls); i++) {
2457                 err = snd_ctl_add(korg1212->card, snd_ctl_new1(&snd_korg1212_controls[i], korg1212));
2458                 if (err < 0)
2459                         return err;
2460         }
2461
2462         snd_korg1212_proc_init(korg1212);
2463
2464         snd_card_set_dev(card, &pci->dev);
2465
2466         * rchip = korg1212;
2467         return 0;
2468
2469 }
2470
2471 /*
2472  * Card initialisation
2473  */
2474
2475 static int __devinit
2476 snd_korg1212_probe(struct pci_dev *pci,
2477                 const struct pci_device_id *pci_id)
2478 {
2479         static int dev;
2480         korg1212_t *korg1212;
2481         snd_card_t *card;
2482         int err;
2483
2484         if (dev >= SNDRV_CARDS) {
2485                 return -ENODEV;
2486         }
2487         if (!enable[dev]) {
2488                 dev++;
2489                 return -ENOENT;
2490         }
2491         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
2492         if (card == NULL)
2493                 return -ENOMEM;
2494
2495         if ((err = snd_korg1212_create(card, pci, &korg1212)) < 0) {
2496                 snd_card_free(card);
2497                 return err;
2498         }
2499
2500         strcpy(card->driver, "korg1212");
2501         strcpy(card->shortname, "korg1212");
2502         sprintf(card->longname, "%s at 0x%lx, irq %d", card->shortname,
2503                 korg1212->iomem, korg1212->irq);
2504
2505 #if K1212_DEBUG_LEVEL > 0
2506         K1212_DEBUG_PRINTK("K1212_DEBUG: %s\n", card->longname);
2507 #endif
2508
2509         if ((err = snd_card_register(card)) < 0) {
2510                 snd_card_free(card);
2511                 return err;
2512         }
2513         pci_set_drvdata(pci, card);
2514         dev++;
2515         return 0;
2516 }
2517
2518 static void __devexit snd_korg1212_remove(struct pci_dev *pci)
2519 {
2520         snd_card_free(pci_get_drvdata(pci));
2521         pci_set_drvdata(pci, NULL);
2522 }
2523
2524 static struct pci_driver driver = {
2525         .name = "korg1212",
2526         .id_table = snd_korg1212_ids,
2527         .probe = snd_korg1212_probe,
2528         .remove = __devexit_p(snd_korg1212_remove),
2529 };
2530
2531 static int __init alsa_card_korg1212_init(void)
2532 {
2533         return pci_module_init(&driver);
2534 }
2535
2536 static void __exit alsa_card_korg1212_exit(void)
2537 {
2538         pci_unregister_driver(&driver);
2539 }
2540
2541 module_init(alsa_card_korg1212_init)
2542 module_exit(alsa_card_korg1212_exit)