sound/pci/korg1212/korg1212.c

   1 /*
   2  *   Driver for the Korg 1212 IO PCI card
   3  *
   4  *      Copyright (c) 2001 Haroldo Gamal <gamal@alternex.com.br>
   5  *
   6  *   This program is free software; you can redistribute it and/or modify
   7  *   it under the terms of the GNU General Public License as published by
   8  *   the Free Software Foundation; either version 2 of the License, or
   9  *   (at your option) any later version.
  10  *
  11  *   This program is distributed in the hope that it will be useful,
  12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *   GNU General Public License for more details.
  15  *
  16  *   You should have received a copy of the GNU General Public License
  17  *   along with this program; if not, write to the Free Software
  18  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  19  *
  20  */
  21
  22 #include <sound/driver.h>
  23 #include <linux/delay.h>
  24 #include <linux/init.h>
  25 #include <linux/interrupt.h>
  26 #include <linux/pci.h>
  27 #include <linux/slab.h>
  28 #include <linux/wait.h>
  29 #include <linux/moduleparam.h>
  30 #include <linux/mutex.h>
  31 #include <linux/firmware.h>
  32
  33 #include <sound/core.h>
  34 #include <sound/info.h>
  35 #include <sound/control.h>
  36 #include <sound/pcm.h>
  37 #include <sound/pcm_params.h>
  38 #include <sound/initval.h>
  39
  40 #include <asm/io.h>
  41
  42 // ----------------------------------------------------------------------------
  43 // Debug Stuff
  44 // ----------------------------------------------------------------------------
  45 #define K1212_DEBUG_LEVEL               0
  46 #if K1212_DEBUG_LEVEL > 0
  47 #define K1212_DEBUG_PRINTK(fmt,args...) printk(KERN_DEBUG fmt,##args)
  48 #else
  49 #define K1212_DEBUG_PRINTK(fmt,...)
  50 #endif
  51 #if K1212_DEBUG_LEVEL > 1
  52 #define K1212_DEBUG_PRINTK_VERBOSE(fmt,args...) printk(KERN_DEBUG fmt,##args)
  53 #else
  54 #define K1212_DEBUG_PRINTK_VERBOSE(fmt,...)
  55 #endif
  56
  57 // ----------------------------------------------------------------------------
  58 // Record/Play Buffer Allocation Method. If K1212_LARGEALLOC is defined all
  59 // buffers are alocated as a large piece inside KorgSharedBuffer.
  60 // ----------------------------------------------------------------------------
  61 //#define K1212_LARGEALLOC              1
  62
  63 // ----------------------------------------------------------------------------
  64 // Valid states of the Korg 1212 I/O card.
  65 // ----------------------------------------------------------------------------
  66 enum CardState {
  67    K1212_STATE_NONEXISTENT,             // there is no card here
  68    K1212_STATE_UNINITIALIZED,           // the card is awaiting DSP download
  69    K1212_STATE_DSP_IN_PROCESS,          // the card is currently downloading its DSP code
  70    K1212_STATE_DSP_COMPLETE,            // the card has finished the DSP download
  71    K1212_STATE_READY,                   // the card can be opened by an application.  Any application
  72                                         //    requests prior to this state should fail.  Only an open
  73                                         //    request can be made at this state.
  74    K1212_STATE_OPEN,                    // an application has opened the card
  75    K1212_STATE_SETUP,                   // the card has been setup for play
  76    K1212_STATE_PLAYING,                 // the card is playing
  77    K1212_STATE_MONITOR,                 // the card is in the monitor mode
  78    K1212_STATE_CALIBRATING,             // the card is currently calibrating
  79    K1212_STATE_ERRORSTOP,               // the card has stopped itself because of an error and we
  80                                         //    are in the process of cleaning things up.
  81    K1212_STATE_MAX_STATE                // state values of this and beyond are invalid
  82 };
  83
  84 // ----------------------------------------------------------------------------
  85 // The following enumeration defines the constants written to the card's
  86 // host-to-card doorbell to initiate a command.
  87 // ----------------------------------------------------------------------------
  88 enum korg1212_dbcnst {
  89    K1212_DB_RequestForData        = 0,    // sent by the card to request a buffer fill.
  90    K1212_DB_TriggerPlay           = 1,    // starts playback/record on the card.
  91    K1212_DB_SelectPlayMode        = 2,    // select monitor, playback setup, or stop.
  92    K1212_DB_ConfigureBufferMemory = 3,    // tells card where the host audio buffers are.
  93    K1212_DB_RequestAdatTimecode   = 4,    // asks the card for the latest ADAT timecode value.
  94    K1212_DB_SetClockSourceRate    = 5,    // sets the clock source and rate for the card.
  95    K1212_DB_ConfigureMiscMemory   = 6,    // tells card where other buffers are.
  96    K1212_DB_TriggerFromAdat       = 7,    // tells card to trigger from Adat at a specific
  97                                           //    timecode value.
  98    K1212_DB_DMAERROR              = 0x80, // DMA Error - the PCI bus is congestioned.
  99    K1212_DB_CARDSTOPPED           = 0x81, // Card has stopped by user request.
 100    K1212_DB_RebootCard            = 0xA0, // instructs the card to reboot.
 101    K1212_DB_BootFromDSPPage4      = 0xA4, // instructs the card to boot from the DSP microcode
 102                                           //    on page 4 (local page to card).
 103    K1212_DB_DSPDownloadDone       = 0xAE, // sent by the card to indicate the download has
 104                                           //    completed.
 105    K1212_DB_StartDSPDownload      = 0xAF  // tells the card to download its DSP firmware.
 106 };
 107
 108
 109 // ----------------------------------------------------------------------------
 110 // The following enumeration defines return codes
 111 // to the Korg 1212 I/O driver.
 112 // ----------------------------------------------------------------------------
 113 enum snd_korg1212rc {
 114    K1212_CMDRET_Success         = 0,   // command was successfully placed
 115    K1212_CMDRET_DIOCFailure,           // the DeviceIoControl call failed
 116    K1212_CMDRET_PMFailure,             // the protected mode call failed
 117    K1212_CMDRET_FailUnspecified,       // unspecified failure
 118    K1212_CMDRET_FailBadState,          // the specified command can not be given in
 119                                        //    the card's current state. (or the wave device's
 120                                        //    state)
 121    K1212_CMDRET_CardUninitialized,     // the card is uninitialized and cannot be used
 122    K1212_CMDRET_BadIndex,              // an out of range card index was specified
 123    K1212_CMDRET_BadHandle,             // an invalid card handle was specified
 124    K1212_CMDRET_NoFillRoutine,         // a play request has been made before a fill routine set
 125    K1212_CMDRET_FillRoutineInUse,      // can't set a new fill routine while one is in use
 126    K1212_CMDRET_NoAckFromCard,         // the card never acknowledged a command
 127    K1212_CMDRET_BadParams,             // bad parameters were provided by the caller
 128
 129    K1212_CMDRET_BadDevice,             // the specified wave device was out of range
 130    K1212_CMDRET_BadFormat              // the specified wave format is unsupported
 131 };
 132
 133 // ----------------------------------------------------------------------------
 134 // The following enumeration defines the constants used to select the play
 135 // mode for the card in the SelectPlayMode command.
 136 // ----------------------------------------------------------------------------
 137 enum PlayModeSelector {
 138    K1212_MODE_SetupPlay  = 0x00000001,     // provides card with pre-play information
 139    K1212_MODE_MonitorOn  = 0x00000002,     // tells card to turn on monitor mode
 140    K1212_MODE_MonitorOff = 0x00000004,     // tells card to turn off monitor mode
 141    K1212_MODE_StopPlay   = 0x00000008      // stops playback on the card
 142 };
 143
 144 // ----------------------------------------------------------------------------
 145 // The following enumeration defines the constants used to select the monitor
 146 // mode for the card in the SetMonitorMode command.
 147 // ----------------------------------------------------------------------------
 148 enum MonitorModeSelector {
 149    K1212_MONMODE_Off  = 0,     // tells card to turn off monitor mode
 150    K1212_MONMODE_On            // tells card to turn on monitor mode
 151 };
 152
 153 #define MAILBOX0_OFFSET      0x40       // location of mailbox 0 relative to base address
 154 #define MAILBOX1_OFFSET      0x44       // location of mailbox 1 relative to base address
 155 #define MAILBOX2_OFFSET      0x48       // location of mailbox 2 relative to base address
 156 #define MAILBOX3_OFFSET      0x4c       // location of mailbox 3 relative to base address
 157 #define OUT_DOORBELL_OFFSET  0x60       // location of PCI to local doorbell
 158 #define IN_DOORBELL_OFFSET   0x64       // location of local to PCI doorbell
 159 #define STATUS_REG_OFFSET    0x68       // location of interrupt control/status register
 160 #define PCI_CONTROL_OFFSET   0x6c       // location of the EEPROM, PCI, User I/O, init control
 161                                         //    register
 162 #define SENS_CONTROL_OFFSET  0x6e       // location of the input sensitivity setting register.
 163                                         //    this is the upper word of the PCI control reg.
 164 #define DEV_VEND_ID_OFFSET   0x70       // location of the device and vendor ID register
 165
 166 #define COMMAND_ACK_DELAY    13        // number of RTC ticks to wait for an acknowledgement
 167                                         //    from the card after sending a command.
 168 #define INTERCOMMAND_DELAY   40
 169 #define MAX_COMMAND_RETRIES  5         // maximum number of times the driver will attempt
 170                                        //    to send a command before giving up.
 171 #define COMMAND_ACK_MASK     0x8000    // the MSB is set in the command acknowledgment from
 172                                         //    the card.
 173 #define DOORBELL_VAL_MASK    0x00FF    // the doorbell value is one byte
 174
 175 #define CARD_BOOT_DELAY_IN_MS  10
 176 #define CARD_BOOT_TIMEOUT      10
 177 #define DSP_BOOT_DELAY_IN_MS   200
 178
 179 #define kNumBuffers             8
 180 #define k1212MaxCards           4
 181 #define k1212NumWaveDevices     6
 182 #define k16BitChannels          10
 183 #define k32BitChannels          2
 184 #define kAudioChannels          (k16BitChannels + k32BitChannels)
 185 #define kPlayBufferFrames       1024
 186
 187 #define K1212_ANALOG_CHANNELS   2
 188 #define K1212_SPDIF_CHANNELS    2
 189 #define K1212_ADAT_CHANNELS     8
 190 #define K1212_CHANNELS          (K1212_ADAT_CHANNELS + K1212_ANALOG_CHANNELS)
 191 #define K1212_MIN_CHANNELS      1
 192 #define K1212_MAX_CHANNELS      K1212_CHANNELS
 193 #define K1212_FRAME_SIZE        (sizeof(struct KorgAudioFrame))
 194 #define K1212_MAX_SAMPLES       (kPlayBufferFrames*kNumBuffers)
 195 #define K1212_PERIODS           (kNumBuffers)
 196 #define K1212_PERIOD_BYTES      (K1212_FRAME_SIZE*kPlayBufferFrames)
 197 #define K1212_BUF_SIZE          (K1212_PERIOD_BYTES*kNumBuffers)
 198 #define K1212_ANALOG_BUF_SIZE   (K1212_ANALOG_CHANNELS * 2 * kPlayBufferFrames * kNumBuffers)
 199 #define K1212_SPDIF_BUF_SIZE    (K1212_SPDIF_CHANNELS * 3 * kPlayBufferFrames * kNumBuffers)
 200 #define K1212_ADAT_BUF_SIZE     (K1212_ADAT_CHANNELS * 2 * kPlayBufferFrames * kNumBuffers)
 201 #define K1212_MAX_BUF_SIZE      (K1212_ANALOG_BUF_SIZE + K1212_ADAT_BUF_SIZE)
 202
 203 #define k1212MinADCSens     0x7f
 204 #define k1212MaxADCSens     0x00
 205 #define k1212MaxVolume      0x7fff
 206 #define k1212MaxWaveVolume  0xffff
 207 #define k1212MinVolume      0x0000
 208 #define k1212MaxVolInverted 0x8000
 209
 210 // -----------------------------------------------------------------
 211 // the following bits are used for controlling interrupts in the
 212 // interrupt control/status reg
 213 // -----------------------------------------------------------------
 214 #define  PCI_INT_ENABLE_BIT               0x00000100
 215 #define  PCI_DOORBELL_INT_ENABLE_BIT      0x00000200
 216 #define  LOCAL_INT_ENABLE_BIT             0x00010000
 217 #define  LOCAL_DOORBELL_INT_ENABLE_BIT    0x00020000
 218 #define  LOCAL_DMA1_INT_ENABLE_BIT        0x00080000
 219
 220 // -----------------------------------------------------------------
 221 // the following bits are defined for the PCI command register
 222 // -----------------------------------------------------------------
 223 #define  PCI_CMD_MEM_SPACE_ENABLE_BIT     0x0002
 224 #define  PCI_CMD_IO_SPACE_ENABLE_BIT      0x0001
 225 #define  PCI_CMD_BUS_MASTER_ENABLE_BIT    0x0004
 226
 227 // -----------------------------------------------------------------
 228 // the following bits are defined for the PCI status register
 229 // -----------------------------------------------------------------
 230 #define  PCI_STAT_PARITY_ERROR_BIT        0x8000
 231 #define  PCI_STAT_SYSTEM_ERROR_BIT        0x4000
 232 #define  PCI_STAT_MASTER_ABORT_RCVD_BIT   0x2000
 233 #define  PCI_STAT_TARGET_ABORT_RCVD_BIT   0x1000
 234 #define  PCI_STAT_TARGET_ABORT_SENT_BIT   0x0800
 235
 236 // ------------------------------------------------------------------------
 237 // the following constants are used in setting the 1212 I/O card's input
 238 // sensitivity.
 239 // ------------------------------------------------------------------------
 240 #define  SET_SENS_LOCALINIT_BITPOS        15
 241 #define  SET_SENS_DATA_BITPOS             10
 242 #define  SET_SENS_CLOCK_BITPOS            8
 243 #define  SET_SENS_LOADSHIFT_BITPOS        0
 244
 245 #define  SET_SENS_LEFTCHANID              0x00
 246 #define  SET_SENS_RIGHTCHANID             0x01
 247
 248 #define  K1212SENSUPDATE_DELAY_IN_MS      50
 249
 250 // --------------------------------------------------------------------------
 251 // WaitRTCTicks
 252 //
 253 //    This function waits the specified number of real time clock ticks.
 254 //    According to the DDK, each tick is ~0.8 microseconds.
 255 //    The defines following the function declaration can be used for the
 256 //    numTicksToWait parameter.
 257 // --------------------------------------------------------------------------
 258 #define ONE_RTC_TICK         1
 259 #define SENSCLKPULSE_WIDTH   4
 260 #define LOADSHIFT_DELAY      4
 261 #define INTERCOMMAND_DELAY  40
 262 #define STOPCARD_DELAY      300        // max # RTC ticks for the card to stop once we write
 263                                        //    the command register.  (could be up to 180 us)
 264 #define COMMAND_ACK_DELAY   13         // number of RTC ticks to wait for an acknowledgement
 265                                        //    from the card after sending a command.
 266
 267 #ifdef CONFIG_SND_KORG1212_FIRMWARE_IN_KERNEL
 268 #include "korg1212-firmware.h"
 269 static const struct firmware static_dsp_code = {
 270         .data = (u8 *)dspCode,
 271         .size = sizeof dspCode
 272 };
 273 #endif
 274
 275 enum ClockSourceIndex {
 276    K1212_CLKIDX_AdatAt44_1K = 0,    // selects source as ADAT at 44.1 kHz
 277    K1212_CLKIDX_AdatAt48K,          // selects source as ADAT at 48 kHz
 278    K1212_CLKIDX_WordAt44_1K,        // selects source as S/PDIF at 44.1 kHz
 279    K1212_CLKIDX_WordAt48K,          // selects source as S/PDIF at 48 kHz
 280    K1212_CLKIDX_LocalAt44_1K,       // selects source as local clock at 44.1 kHz
 281    K1212_CLKIDX_LocalAt48K,         // selects source as local clock at 48 kHz
 282    K1212_CLKIDX_Invalid             // used to check validity of the index
 283 };
 284
 285 enum ClockSourceType {
 286    K1212_CLKIDX_Adat = 0,    // selects source as ADAT
 287    K1212_CLKIDX_Word,        // selects source as S/PDIF
 288    K1212_CLKIDX_Local        // selects source as local clock
 289 };
 290
 291 struct KorgAudioFrame {
 292         u16 frameData16[k16BitChannels]; /* channels 0-9 use 16 bit samples */
 293         u32 frameData32[k32BitChannels]; /* channels 10-11 use 32 bits - only 20 are sent across S/PDIF */
 294         u32 timeCodeVal; /* holds the ADAT timecode value */
 295 };
 296
 297 struct KorgAudioBuffer {
 298         struct KorgAudioFrame  bufferData[kPlayBufferFrames];     /* buffer definition */
 299 };
 300
 301 struct KorgSharedBuffer {
 302 #ifdef K1212_LARGEALLOC
 303    struct KorgAudioBuffer   playDataBufs[kNumBuffers];
 304    struct KorgAudioBuffer   recordDataBufs[kNumBuffers];
 305 #endif
 306    short             volumeData[kAudioChannels];
 307    u32               cardCommand;
 308    u16               routeData [kAudioChannels];
 309    u32               AdatTimeCode;                 // ADAT timecode value
 310 };
 311
 312 struct SensBits {
 313    union {
 314       struct {
 315          unsigned int leftChanVal:8;
 316          unsigned int leftChanId:8;
 317       } v;
 318       u16  leftSensBits;
 319    } l;
 320    union {
 321       struct {
 322          unsigned int rightChanVal:8;
 323          unsigned int rightChanId:8;
 324       } v;
 325       u16  rightSensBits;
 326    } r;
 327 };
 328
 329 struct snd_korg1212 {
 330         struct snd_card *card;
 331         struct pci_dev *pci;
 332         struct snd_pcm *pcm;
 333         int irq;
 334
 335         spinlock_t    lock;
 336         struct mutex open_mutex;
 337
 338         struct timer_list timer;        /* timer callback for checking ack of stop request */
 339         int stop_pending_cnt;           /* counter for stop pending check */
 340
 341         wait_queue_head_t wait;
 342
 343         unsigned long iomem;
 344         unsigned long ioport;
 345         unsigned long iomem2;
 346         unsigned long irqcount;
 347         unsigned long inIRQ;
 348         void __iomem *iobase;
 349
 350         struct snd_dma_buffer dma_dsp;
 351         struct snd_dma_buffer dma_play;
 352         struct snd_dma_buffer dma_rec;
 353         struct snd_dma_buffer dma_shared;
 354
 355         u32 DataBufsSize;
 356
 357         struct KorgAudioBuffer  * playDataBufsPtr;
 358         struct KorgAudioBuffer  * recordDataBufsPtr;
 359
 360         struct KorgSharedBuffer * sharedBufferPtr;
 361
 362         u32 RecDataPhy;
 363         u32 PlayDataPhy;
 364         unsigned long sharedBufferPhy;
 365         u32 VolumeTablePhy;
 366         u32 RoutingTablePhy;
 367         u32 AdatTimeCodePhy;
 368
 369         u32 __iomem * statusRegPtr;          // address of the interrupt status/control register
 370         u32 __iomem * outDoorbellPtr;        // address of the host->card doorbell register
 371         u32 __iomem * inDoorbellPtr;         // address of the card->host doorbell register
 372         u32 __iomem * mailbox0Ptr;           // address of mailbox 0 on the card
 373         u32 __iomem * mailbox1Ptr;           // address of mailbox 1 on the card
 374         u32 __iomem * mailbox2Ptr;           // address of mailbox 2 on the card
 375         u32 __iomem * mailbox3Ptr;           // address of mailbox 3 on the card
 376         u32 __iomem * controlRegPtr;         // address of the EEPROM, PCI, I/O, Init ctrl reg
 377         u16 __iomem * sensRegPtr;            // address of the sensitivity setting register
 378         u32 __iomem * idRegPtr;              // address of the device and vendor ID registers
 379
 380         size_t periodsize;
 381         int channels;
 382         int currentBuffer;
 383
 384         struct snd_pcm_substream *playback_substream;
 385         struct snd_pcm_substream *capture_substream;
 386
 387         pid_t capture_pid;
 388         pid_t playback_pid;
 389
 390         enum CardState cardState;
 391         int running;
 392         int idleMonitorOn;           // indicates whether the card is in idle monitor mode.
 393         u32 cmdRetryCount;           // tracks how many times we have retried sending to the card.
 394
 395         enum ClockSourceIndex clkSrcRate; // sample rate and clock source
 396
 397         enum ClockSourceType clkSource;   // clock source
 398         int clkRate;                 // clock rate
 399
 400         int volumePhase[kAudioChannels];
 401
 402         u16 leftADCInSens;           // ADC left channel input sensitivity
 403         u16 rightADCInSens;          // ADC right channel input sensitivity
 404
 405         int opencnt;                 // Open/Close count
 406         int setcnt;                  // SetupForPlay count
 407         int playcnt;                 // TriggerPlay count
 408         int errorcnt;                // Error Count
 409         unsigned long totalerrorcnt; // Total Error Count
 410
 411         int dsp_is_loaded;
 412         int dsp_stop_is_processed;
 413
 414 };
 415
 416 MODULE_DESCRIPTION("korg1212");
 417 MODULE_LICENSE("GPL");
 418 MODULE_SUPPORTED_DEVICE("{{KORG,korg1212}}");
 419 #ifndef CONFIG_SND_KORG1212_FIRMWARE_IN_KERNEL
 420 MODULE_FIRMWARE("korg/k1212.dsp");
 421 #endif
 422
 423 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;     /* Index 0-MAX */
 424 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;          /* ID for this card */
 425 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
 426
 427 module_param_array(index, int, NULL, 0444);
 428 MODULE_PARM_DESC(index, "Index value for Korg 1212 soundcard.");
 429 module_param_array(id, charp, NULL, 0444);
 430 MODULE_PARM_DESC(id, "ID string for Korg 1212 soundcard.");
 431 module_param_array(enable, bool, NULL, 0444);
 432 MODULE_PARM_DESC(enable, "Enable Korg 1212 soundcard.");
 433 MODULE_AUTHOR("Haroldo Gamal <gamal@alternex.com.br>");
 434
 435 static struct pci_device_id snd_korg1212_ids[] = {
 436         {
 437                 .vendor    = 0x10b5,
 438                 .device    = 0x906d,
 439                 .subvendor = PCI_ANY_ID,
 440                 .subdevice = PCI_ANY_ID,
 441         },
 442         { 0, },
 443 };
 444
 445 MODULE_DEVICE_TABLE(pci, snd_korg1212_ids);
 446
 447 static char *stateName[] = {
 448         "Non-existent",
 449         "Uninitialized",
 450         "DSP download in process",
 451         "DSP download complete",
 452         "Ready",
 453         "Open",
 454         "Setup for play",
 455         "Playing",
 456         "Monitor mode on",
 457         "Calibrating",
 458         "Invalid"
 459 };
 460
 461 static char *clockSourceTypeName[] = { "ADAT", "S/PDIF", "local" };
 462
 463 static char *clockSourceName[] = {
 464         "ADAT at 44.1 kHz",
 465         "ADAT at 48 kHz",
 466         "S/PDIF at 44.1 kHz",
 467         "S/PDIF at 48 kHz",
 468         "local clock at 44.1 kHz",
 469         "local clock at 48 kHz"
 470 };
 471
 472 static char *channelName[] = {
 473         "ADAT-1",
 474         "ADAT-2",
 475         "ADAT-3",
 476         "ADAT-4",
 477         "ADAT-5",
 478         "ADAT-6",
 479         "ADAT-7",
 480         "ADAT-8",
 481         "Analog-L",
 482         "Analog-R",
 483         "SPDIF-L",
 484         "SPDIF-R",
 485 };
 486
 487 static u16 ClockSourceSelector[] = {
 488         0x8000,   // selects source as ADAT at 44.1 kHz
 489         0x0000,   // selects source as ADAT at 48 kHz
 490         0x8001,   // selects source as S/PDIF at 44.1 kHz
 491         0x0001,   // selects source as S/PDIF at 48 kHz
 492         0x8002,   // selects source as local clock at 44.1 kHz
 493         0x0002    // selects source as local clock at 48 kHz
 494 };
 495
 496 union swap_u32 { unsigned char c[4]; u32 i; };
 497
 498 #ifdef SNDRV_BIG_ENDIAN
 499 static u32 LowerWordSwap(u32 swappee)
 500 #else
 501 static u32 UpperWordSwap(u32 swappee)
 502 #endif
 503 {
 504    union swap_u32 retVal, swapper;
 505
 506    swapper.i = swappee;
 507    retVal.c[2] = swapper.c[3];
 508    retVal.c[3] = swapper.c[2];
 509    retVal.c[1] = swapper.c[1];
 510    retVal.c[0] = swapper.c[0];
 511
 512    return retVal.i;
 513 }
 514
 515 #ifdef SNDRV_BIG_ENDIAN
 516 static u32 UpperWordSwap(u32 swappee)
 517 #else
 518 static u32 LowerWordSwap(u32 swappee)
 519 #endif
 520 {
 521    union swap_u32 retVal, swapper;
 522
 523    swapper.i = swappee;
 524    retVal.c[2] = swapper.c[2];
 525    retVal.c[3] = swapper.c[3];
 526    retVal.c[1] = swapper.c[0];
 527    retVal.c[0] = swapper.c[1];
 528
 529    return retVal.i;
 530 }
 531
 532 #define SetBitInWord(theWord,bitPosition)       (*theWord) |= (0x0001 << bitPosition)
 533 #define SetBitInDWord(theWord,bitPosition)      (*theWord) |= (0x00000001 << bitPosition)
 534 #define ClearBitInWord(theWord,bitPosition)     (*theWord) &= ~(0x0001 << bitPosition)
 535 #define ClearBitInDWord(theWord,bitPosition)    (*theWord) &= ~(0x00000001 << bitPosition)
 536
 537 static int snd_korg1212_Send1212Command(struct snd_korg1212 *korg1212,
 538                                         enum korg1212_dbcnst doorbellVal,
 539                                         u32 mailBox0Val, u32 mailBox1Val,
 540                                         u32 mailBox2Val, u32 mailBox3Val)
 541 {
 542         u32 retryCount;
 543         u16 mailBox3Lo;
 544         int rc = K1212_CMDRET_Success;
 545
 546         if (!korg1212->outDoorbellPtr) {
 547                 K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: CardUninitialized\n");
 548                 return K1212_CMDRET_CardUninitialized;
 549         }
 550
 551         K1212_DEBUG_PRINTK("K1212_DEBUG: Card <- 0x%08x 0x%08x [%s]\n",
 552                            doorbellVal, mailBox0Val, stateName[korg1212->cardState]);
 553         for (retryCount = 0; retryCount < MAX_COMMAND_RETRIES; retryCount++) {
 554                 writel(mailBox3Val, korg1212->mailbox3Ptr);
 555                 writel(mailBox2Val, korg1212->mailbox2Ptr);
 556                 writel(mailBox1Val, korg1212->mailbox1Ptr);
 557                 writel(mailBox0Val, korg1212->mailbox0Ptr);
 558                 writel(doorbellVal, korg1212->outDoorbellPtr);  // interrupt the card
 559
 560                 // --------------------------------------------------------------
 561                 // the reboot command will not give an acknowledgement.
 562                 // --------------------------------------------------------------
 563                 if ( doorbellVal == K1212_DB_RebootCard ||
 564                         doorbellVal == K1212_DB_BootFromDSPPage4 ||
 565                         doorbellVal == K1212_DB_StartDSPDownload ) {
 566                         rc = K1212_CMDRET_Success;
 567                         break;
 568                 }
 569
 570                 // --------------------------------------------------------------
 571                 // See if the card acknowledged the command.  Wait a bit, then
 572                 // read in the low word of mailbox3.  If the MSB is set and the
 573                 // low byte is equal to the doorbell value, then it ack'd.
 574                 // --------------------------------------------------------------
 575                 udelay(COMMAND_ACK_DELAY);
 576                 mailBox3Lo = readl(korg1212->mailbox3Ptr);
 577                 if (mailBox3Lo & COMMAND_ACK_MASK) {
 578                         if ((mailBox3Lo & DOORBELL_VAL_MASK) == (doorbellVal & DOORBELL_VAL_MASK)) {
 579                                 K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: Card <- Success\n");
 580                                 rc = K1212_CMDRET_Success;
 581                                 break;
 582                         }
 583                 }
 584         }
 585         korg1212->cmdRetryCount += retryCount;
 586
 587         if (retryCount >= MAX_COMMAND_RETRIES) {
 588                 K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: Card <- NoAckFromCard\n");
 589                 rc = K1212_CMDRET_NoAckFromCard;
 590         }
 591
 592         return rc;
 593 }
 594
 595 /* spinlock already held */
 596 static void snd_korg1212_SendStop(struct snd_korg1212 *korg1212)
 597 {
 598         if (! korg1212->stop_pending_cnt) {
 599                 korg1212->sharedBufferPtr->cardCommand = 0xffffffff;
 600                 /* program the timer */
 601                 korg1212->stop_pending_cnt = HZ;
 602                 korg1212->timer.expires = jiffies + 1;
 603                 add_timer(&korg1212->timer);
 604         }
 605 }
 606
 607 static void snd_korg1212_SendStopAndWait(struct snd_korg1212 *korg1212)
 608 {
 609         unsigned long flags;
 610         spin_lock_irqsave(&korg1212->lock, flags);
 611         korg1212->dsp_stop_is_processed = 0;
 612         snd_korg1212_SendStop(korg1212);
 613         spin_unlock_irqrestore(&korg1212->lock, flags);
 614         wait_event_timeout(korg1212->wait, korg1212->dsp_stop_is_processed, (HZ * 3) / 2);
 615 }
 616
 617 /* timer callback for checking the ack of stop request */
 618 static void snd_korg1212_timer_func(unsigned long data)
 619 {
 620         struct snd_korg1212 *korg1212 = (struct snd_korg1212 *) data;
 621         unsigned long flags;
 622
 623         spin_lock_irqsave(&korg1212->lock, flags);
 624         if (korg1212->sharedBufferPtr->cardCommand == 0) {
 625                 /* ack'ed */
 626                 korg1212->stop_pending_cnt = 0;
 627                 korg1212->dsp_stop_is_processed = 1;
 628                 wake_up(&korg1212->wait);
 629                 K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: Stop ack'ed [%s]\n",
 630                                            stateName[korg1212->cardState]);
 631         } else {
 632                 if (--korg1212->stop_pending_cnt > 0) {
 633                         /* reprogram timer */
 634                         korg1212->timer.expires = jiffies + 1;
 635                         add_timer(&korg1212->timer);
 636                 } else {
 637                         snd_printd("korg1212_timer_func timeout\n");
 638                         korg1212->sharedBufferPtr->cardCommand = 0;
 639                         korg1212->dsp_stop_is_processed = 1;
 640                         wake_up(&korg1212->wait);
 641                         K1212_DEBUG_PRINTK("K1212_DEBUG: Stop timeout [%s]\n",
 642                                            stateName[korg1212->cardState]);
 643                 }
 644         }
 645         spin_unlock_irqrestore(&korg1212->lock, flags);
 646 }
 647
 648 static int snd_korg1212_TurnOnIdleMonitor(struct snd_korg1212 *korg1212)
 649 {
 650         unsigned long flags;
 651         int rc;
 652
 653         udelay(INTERCOMMAND_DELAY);
 654         spin_lock_irqsave(&korg1212->lock, flags);
 655         korg1212->idleMonitorOn = 1;
 656         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SelectPlayMode,
 657                                           K1212_MODE_MonitorOn, 0, 0, 0);
 658         spin_unlock_irqrestore(&korg1212->lock, flags);
 659         return rc;
 660 }
 661
 662 static void snd_korg1212_TurnOffIdleMonitor(struct snd_korg1212 *korg1212)
 663 {
 664         if (korg1212->idleMonitorOn) {
 665                 snd_korg1212_SendStopAndWait(korg1212);
 666                 korg1212->idleMonitorOn = 0;
 667         }
 668 }
 669
 670 static inline void snd_korg1212_setCardState(struct snd_korg1212 * korg1212, enum CardState csState)
 671 {
 672         korg1212->cardState = csState;
 673 }
 674
 675 static int snd_korg1212_OpenCard(struct snd_korg1212 * korg1212)
 676 {
 677         K1212_DEBUG_PRINTK("K1212_DEBUG: OpenCard [%s] %d\n",
 678                            stateName[korg1212->cardState], korg1212->opencnt);
 679         mutex_lock(&korg1212->open_mutex);
 680         if (korg1212->opencnt++ == 0) {
 681                 snd_korg1212_TurnOffIdleMonitor(korg1212);
 682                 snd_korg1212_setCardState(korg1212, K1212_STATE_OPEN);
 683         }
 684
 685         mutex_unlock(&korg1212->open_mutex);
 686         return 1;
 687 }
 688
 689 static int snd_korg1212_CloseCard(struct snd_korg1212 * korg1212)
 690 {
 691         K1212_DEBUG_PRINTK("K1212_DEBUG: CloseCard [%s] %d\n",
 692                            stateName[korg1212->cardState], korg1212->opencnt);
 693
 694         mutex_lock(&korg1212->open_mutex);
 695         if (--(korg1212->opencnt)) {
 696                 mutex_unlock(&korg1212->open_mutex);
 697                 return 0;
 698         }
 699
 700         if (korg1212->cardState == K1212_STATE_SETUP) {
 701                 int rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SelectPlayMode,
 702                                 K1212_MODE_StopPlay, 0, 0, 0);
 703                 if (rc)
 704                         K1212_DEBUG_PRINTK("K1212_DEBUG: CloseCard - RC = %d [%s]\n",
 705                                            rc, stateName[korg1212->cardState]);
 706                 if (rc != K1212_CMDRET_Success) {
 707                         mutex_unlock(&korg1212->open_mutex);
 708                         return 0;
 709                 }
 710         } else if (korg1212->cardState > K1212_STATE_SETUP) {
 711                 snd_korg1212_SendStopAndWait(korg1212);
 712         }
 713
 714         if (korg1212->cardState > K1212_STATE_READY) {
 715                 snd_korg1212_TurnOnIdleMonitor(korg1212);
 716                 snd_korg1212_setCardState(korg1212, K1212_STATE_READY);
 717         }
 718
 719         mutex_unlock(&korg1212->open_mutex);
 720         return 0;
 721 }
 722
 723 /* spinlock already held */
 724 static int snd_korg1212_SetupForPlay(struct snd_korg1212 * korg1212)
 725 {
 726         int rc;
 727
 728         K1212_DEBUG_PRINTK("K1212_DEBUG: SetupForPlay [%s] %d\n",
 729                            stateName[korg1212->cardState], korg1212->setcnt);
 730
 731         if (korg1212->setcnt++)
 732                 return 0;
 733
 734         snd_korg1212_setCardState(korg1212, K1212_STATE_SETUP);
 735         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SelectPlayMode,
 736                                         K1212_MODE_SetupPlay, 0, 0, 0);
 737         if (rc)
 738                 K1212_DEBUG_PRINTK("K1212_DEBUG: SetupForPlay - RC = %d [%s]\n",
 739                                    rc, stateName[korg1212->cardState]);
 740         if (rc != K1212_CMDRET_Success) {
 741                 return 1;
 742         }
 743         return 0;
 744 }
 745
 746 /* spinlock already held */
 747 static int snd_korg1212_TriggerPlay(struct snd_korg1212 * korg1212)
 748 {
 749         int rc;
 750
 751         K1212_DEBUG_PRINTK("K1212_DEBUG: TriggerPlay [%s] %d\n",
 752                            stateName[korg1212->cardState], korg1212->playcnt);
 753
 754         if (korg1212->playcnt++)
 755                 return 0;
 756
 757         snd_korg1212_setCardState(korg1212, K1212_STATE_PLAYING);
 758         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_TriggerPlay, 0, 0, 0, 0);
 759         if (rc)
 760                 K1212_DEBUG_PRINTK("K1212_DEBUG: TriggerPlay - RC = %d [%s]\n",
 761                                    rc, stateName[korg1212->cardState]);
 762         if (rc != K1212_CMDRET_Success) {
 763                 return 1;
 764         }
 765         return 0;
 766 }
 767
 768 /* spinlock already held */
 769 static int snd_korg1212_StopPlay(struct snd_korg1212 * korg1212)
 770 {
 771         K1212_DEBUG_PRINTK("K1212_DEBUG: StopPlay [%s] %d\n",
 772                            stateName[korg1212->cardState], korg1212->playcnt);
 773
 774         if (--(korg1212->playcnt))
 775                 return 0;
 776
 777         korg1212->setcnt = 0;
 778
 779         if (korg1212->cardState != K1212_STATE_ERRORSTOP)
 780                 snd_korg1212_SendStop(korg1212);
 781
 782         snd_korg1212_setCardState(korg1212, K1212_STATE_OPEN);
 783         return 0;
 784 }
 785
 786 static void snd_korg1212_EnableCardInterrupts(struct snd_korg1212 * korg1212)
 787 {
 788         writel(PCI_INT_ENABLE_BIT            |
 789                PCI_DOORBELL_INT_ENABLE_BIT   |
 790                LOCAL_INT_ENABLE_BIT          |
 791                LOCAL_DOORBELL_INT_ENABLE_BIT |
 792                LOCAL_DMA1_INT_ENABLE_BIT,
 793                korg1212->statusRegPtr);
 794 }
 795
 796 #if 0 /* not used */
 797
 798 static int snd_korg1212_SetMonitorMode(struct snd_korg1212 *korg1212,
 799                                        enum MonitorModeSelector mode)
 800 {
 801         K1212_DEBUG_PRINTK("K1212_DEBUG: SetMonitorMode [%s]\n",
 802                            stateName[korg1212->cardState]);
 803
 804         switch (mode) {
 805         case K1212_MONMODE_Off:
 806                 if (korg1212->cardState != K1212_STATE_MONITOR)
 807                         return 0;
 808                 else {
 809                         snd_korg1212_SendStopAndWait(korg1212);
 810                         snd_korg1212_setCardState(korg1212, K1212_STATE_OPEN);
 811                 }
 812                 break;
 813
 814         case K1212_MONMODE_On:
 815                 if (korg1212->cardState != K1212_STATE_OPEN)
 816                         return 0;
 817                 else {
 818                         int rc;
 819                         snd_korg1212_setCardState(korg1212, K1212_STATE_MONITOR);
 820                         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SelectPlayMode,
 821                                                           K1212_MODE_MonitorOn, 0, 0, 0);
 822                         if (rc != K1212_CMDRET_Success)
 823                                 return 0;
 824                 }
 825                 break;
 826
 827         default:
 828                 return 0;
 829         }
 830
 831         return 1;
 832 }
 833
 834 #endif /* not used */
 835
 836 static inline int snd_korg1212_use_is_exclusive(struct snd_korg1212 *korg1212)
 837 {
 838         if (korg1212->playback_pid != korg1212->capture_pid &&
 839             korg1212->playback_pid >= 0 && korg1212->capture_pid >= 0)
 840                 return 0;
 841
 842         return 1;
 843 }
 844
 845 static int snd_korg1212_SetRate(struct snd_korg1212 *korg1212, int rate)
 846 {
 847         static enum ClockSourceIndex s44[] = {
 848                 K1212_CLKIDX_AdatAt44_1K,
 849                 K1212_CLKIDX_WordAt44_1K,
 850                 K1212_CLKIDX_LocalAt44_1K
 851         };
 852         static enum ClockSourceIndex s48[] = {
 853                 K1212_CLKIDX_AdatAt48K,
 854                 K1212_CLKIDX_WordAt48K,
 855                 K1212_CLKIDX_LocalAt48K
 856         };
 857         int parm, rc;
 858
 859         if (!snd_korg1212_use_is_exclusive (korg1212))
 860                 return -EBUSY;
 861
 862         switch (rate) {
 863         case 44100:
 864                 parm = s44[korg1212->clkSource];
 865                 break;
 866
 867         case 48000:
 868                 parm = s48[korg1212->clkSource];
 869                 break;
 870
 871         default:
 872                 return -EINVAL;
 873         }
 874
 875         korg1212->clkSrcRate = parm;
 876         korg1212->clkRate = rate;
 877
 878         udelay(INTERCOMMAND_DELAY);
 879         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SetClockSourceRate,
 880                                           ClockSourceSelector[korg1212->clkSrcRate],
 881                                           0, 0, 0);
 882         if (rc)
 883                 K1212_DEBUG_PRINTK("K1212_DEBUG: Set Clock Source Selector - RC = %d [%s]\n",
 884                                    rc, stateName[korg1212->cardState]);
 885
 886         return 0;
 887 }
 888
 889 static int snd_korg1212_SetClockSource(struct snd_korg1212 *korg1212, int source)
 890 {
 891
 892         if (source < 0 || source > 2)
 893                 return -EINVAL;
 894
 895         korg1212->clkSource = source;
 896
 897         snd_korg1212_SetRate(korg1212, korg1212->clkRate);
 898
 899         return 0;
 900 }
 901
 902 static void snd_korg1212_DisableCardInterrupts(struct snd_korg1212 *korg1212)
 903 {
 904         writel(0, korg1212->statusRegPtr);
 905 }
 906
 907 static int snd_korg1212_WriteADCSensitivity(struct snd_korg1212 *korg1212)
 908 {
 909         struct SensBits  sensVals;
 910         int       bitPosition;
 911         int       channel;
 912         int       clkIs48K;
 913         int       monModeSet;
 914         u16       controlValue;    // this keeps the current value to be written to
 915                                    //  the card's eeprom control register.
 916         u16       count;
 917         unsigned long flags;
 918
 919         K1212_DEBUG_PRINTK("K1212_DEBUG: WriteADCSensivity [%s]\n",
 920                            stateName[korg1212->cardState]);
 921
 922         // ----------------------------------------------------------------------------
 923         // initialize things.  The local init bit is always set when writing to the
 924         // card's control register.
 925         // ----------------------------------------------------------------------------
 926         controlValue = 0;
 927         SetBitInWord(&controlValue, SET_SENS_LOCALINIT_BITPOS);    // init the control value
 928
 929         // ----------------------------------------------------------------------------
 930         // make sure the card is not in monitor mode when we do this update.
 931         // ----------------------------------------------------------------------------
 932         if (korg1212->cardState == K1212_STATE_MONITOR || korg1212->idleMonitorOn) {
 933                 monModeSet = 1;
 934                 snd_korg1212_SendStopAndWait(korg1212);
 935         } else
 936                 monModeSet = 0;
 937
 938         spin_lock_irqsave(&korg1212->lock, flags);
 939
 940         // ----------------------------------------------------------------------------
 941         // we are about to send new values to the card, so clear the new values queued
 942         // flag.  Also, clear out mailbox 3, so we don't lockup.
 943         // ----------------------------------------------------------------------------
 944         writel(0, korg1212->mailbox3Ptr);
 945         udelay(LOADSHIFT_DELAY);
 946
 947         // ----------------------------------------------------------------------------
 948         // determine whether we are running a 48K or 44.1K clock.  This info is used
 949         // later when setting the SPDIF FF after the volume has been shifted in.
 950         // ----------------------------------------------------------------------------
 951         switch (korg1212->clkSrcRate) {
 952                 case K1212_CLKIDX_AdatAt44_1K:
 953                 case K1212_CLKIDX_WordAt44_1K:
 954                 case K1212_CLKIDX_LocalAt44_1K:
 955                         clkIs48K = 0;
 956                         break;
 957
 958                 case K1212_CLKIDX_WordAt48K:
 959                 case K1212_CLKIDX_AdatAt48K:
 960                 case K1212_CLKIDX_LocalAt48K:
 961                 default:
 962                         clkIs48K = 1;
 963                         break;
 964         }
 965
 966         // ----------------------------------------------------------------------------
 967         // start the update.  Setup the bit structure and then shift the bits.
 968         // ----------------------------------------------------------------------------
 969         sensVals.l.v.leftChanId   = SET_SENS_LEFTCHANID;
 970         sensVals.r.v.rightChanId  = SET_SENS_RIGHTCHANID;
 971         sensVals.l.v.leftChanVal  = korg1212->leftADCInSens;
 972         sensVals.r.v.rightChanVal = korg1212->rightADCInSens;
 973
 974         // ----------------------------------------------------------------------------
 975         // now start shifting the bits in.  Start with the left channel then the right.
 976         // ----------------------------------------------------------------------------
 977         for (channel = 0; channel < 2; channel++) {
 978
 979                 // ----------------------------------------------------------------------------
 980                 // Bring the load/shift line low, then wait - the spec says >150ns from load/
 981                 // shift low to the first rising edge of the clock.
 982                 // ----------------------------------------------------------------------------
 983                 ClearBitInWord(&controlValue, SET_SENS_LOADSHIFT_BITPOS);
 984                 ClearBitInWord(&controlValue, SET_SENS_DATA_BITPOS);
 985                 writew(controlValue, korg1212->sensRegPtr);                          // load/shift goes low
 986                 udelay(LOADSHIFT_DELAY);
 987
 988                 for (bitPosition = 15; bitPosition >= 0; bitPosition--) {       // for all the bits
 989                         if (channel == 0) {
 990                                 if (sensVals.l.leftSensBits & (0x0001 << bitPosition))
 991                                         SetBitInWord(&controlValue, SET_SENS_DATA_BITPOS);     // data bit set high
 992                                 else
 993                                         ClearBitInWord(&controlValue, SET_SENS_DATA_BITPOS);   // data bit set low
 994                         } else {
 995                                 if (sensVals.r.rightSensBits & (0x0001 << bitPosition))
 996                                         SetBitInWord(&controlValue, SET_SENS_DATA_BITPOS);     // data bit set high
 997                                 else
 998                                         ClearBitInWord(&controlValue, SET_SENS_DATA_BITPOS);   // data bit set low
 999                         }
1000
1001                         ClearBitInWord(&controlValue, SET_SENS_CLOCK_BITPOS);
1002                         writew(controlValue, korg1212->sensRegPtr);                       // clock goes low
1003                         udelay(SENSCLKPULSE_WIDTH);
1004                         SetBitInWord(&controlValue, SET_SENS_CLOCK_BITPOS);
1005                         writew(controlValue, korg1212->sensRegPtr);                       // clock goes high
1006                         udelay(SENSCLKPULSE_WIDTH);
1007                 }
1008
1009                 // ----------------------------------------------------------------------------
1010                 // finish up SPDIF for left.  Bring the load/shift line high, then write a one
1011                 // bit if the clock rate is 48K otherwise write 0.
1012                 // ----------------------------------------------------------------------------
1013                 ClearBitInWord(&controlValue, SET_SENS_DATA_BITPOS);
1014                 ClearBitInWord(&controlValue, SET_SENS_CLOCK_BITPOS);
1015                 SetBitInWord(&controlValue, SET_SENS_LOADSHIFT_BITPOS);
1016                 writew(controlValue, korg1212->sensRegPtr);                   // load shift goes high - clk low
1017                 udelay(SENSCLKPULSE_WIDTH);
1018
1019                 if (clkIs48K)
1020                         SetBitInWord(&controlValue, SET_SENS_DATA_BITPOS);
1021
1022                 writew(controlValue, korg1212->sensRegPtr);                   // set/clear data bit
1023                 udelay(ONE_RTC_TICK);
1024                 SetBitInWord(&controlValue, SET_SENS_CLOCK_BITPOS);
1025                 writew(controlValue, korg1212->sensRegPtr);                   // clock goes high
1026                 udelay(SENSCLKPULSE_WIDTH);
1027                 ClearBitInWord(&controlValue, SET_SENS_CLOCK_BITPOS);
1028                 writew(controlValue, korg1212->sensRegPtr);                   // clock goes low
1029                 udelay(SENSCLKPULSE_WIDTH);
1030         }
1031
1032         // ----------------------------------------------------------------------------
1033         // The update is complete.  Set a timeout.  This is the inter-update delay.
1034         // Also, if the card was in monitor mode, restore it.
1035         // ----------------------------------------------------------------------------
1036         for (count = 0; count < 10; count++)
1037                 udelay(SENSCLKPULSE_WIDTH);
1038
1039         if (monModeSet) {
1040                 int rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SelectPlayMode,
1041                                 K1212_MODE_MonitorOn, 0, 0, 0);
1042                 if (rc)
1043                         K1212_DEBUG_PRINTK("K1212_DEBUG: WriteADCSensivity - RC = %d [%s]\n",
1044                                            rc, stateName[korg1212->cardState]);
1045         }
1046
1047         spin_unlock_irqrestore(&korg1212->lock, flags);
1048
1049         return 1;
1050 }
1051
1052 static void snd_korg1212_OnDSPDownloadComplete(struct snd_korg1212 *korg1212)
1053 {
1054         int channel, rc;
1055
1056         K1212_DEBUG_PRINTK("K1212_DEBUG: DSP download is complete. [%s]\n",
1057                            stateName[korg1212->cardState]);
1058
1059         // ----------------------------------------------------
1060         // tell the card to boot
1061         // ----------------------------------------------------
1062         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_BootFromDSPPage4, 0, 0, 0, 0);
1063
1064         if (rc)
1065                 K1212_DEBUG_PRINTK("K1212_DEBUG: Boot from Page 4 - RC = %d [%s]\n",
1066                                    rc, stateName[korg1212->cardState]);
1067         msleep(DSP_BOOT_DELAY_IN_MS);
1068
1069         // --------------------------------------------------------------------------------
1070         // Let the card know where all the buffers are.
1071         // --------------------------------------------------------------------------------
1072         rc = snd_korg1212_Send1212Command(korg1212,
1073                         K1212_DB_ConfigureBufferMemory,
1074                         LowerWordSwap(korg1212->PlayDataPhy),
1075                         LowerWordSwap(korg1212->RecDataPhy),
1076                         ((kNumBuffers * kPlayBufferFrames) / 2),   // size given to the card
1077                                                                    // is based on 2 buffers
1078                         0
1079         );
1080
1081         if (rc)
1082                 K1212_DEBUG_PRINTK("K1212_DEBUG: Configure Buffer Memory - RC = %d [%s]\n",
1083                                    rc, stateName[korg1212->cardState]);
1084
1085         udelay(INTERCOMMAND_DELAY);
1086
1087         rc = snd_korg1212_Send1212Command(korg1212,
1088                         K1212_DB_ConfigureMiscMemory,
1089                         LowerWordSwap(korg1212->VolumeTablePhy),
1090                         LowerWordSwap(korg1212->RoutingTablePhy),
1091                         LowerWordSwap(korg1212->AdatTimeCodePhy),
1092                         0
1093         );
1094
1095         if (rc)
1096                 K1212_DEBUG_PRINTK("K1212_DEBUG: Configure Misc Memory - RC = %d [%s]\n",
1097                                    rc, stateName[korg1212->cardState]);
1098
1099         // --------------------------------------------------------------------------------
1100         // Initialize the routing and volume tables, then update the card's state.
1101         // --------------------------------------------------------------------------------
1102         udelay(INTERCOMMAND_DELAY);
1103
1104         for (channel = 0; channel < kAudioChannels; channel++) {
1105                 korg1212->sharedBufferPtr->volumeData[channel] = k1212MaxVolume;
1106                 //korg1212->sharedBufferPtr->routeData[channel] = channel;
1107                 korg1212->sharedBufferPtr->routeData[channel] = 8 + (channel & 1);
1108         }
1109
1110         snd_korg1212_WriteADCSensitivity(korg1212);
1111
1112         udelay(INTERCOMMAND_DELAY);
1113         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SetClockSourceRate,
1114                                           ClockSourceSelector[korg1212->clkSrcRate],
1115                                           0, 0, 0);
1116         if (rc)
1117                 K1212_DEBUG_PRINTK("K1212_DEBUG: Set Clock Source Selector - RC = %d [%s]\n",
1118                                    rc, stateName[korg1212->cardState]);
1119
1120         rc = snd_korg1212_TurnOnIdleMonitor(korg1212);
1121         snd_korg1212_setCardState(korg1212, K1212_STATE_READY);
1122
1123         if (rc)
1124                 K1212_DEBUG_PRINTK("K1212_DEBUG: Set Monitor On - RC = %d [%s]\n",
1125                                    rc, stateName[korg1212->cardState]);
1126
1127         snd_korg1212_setCardState(korg1212, K1212_STATE_DSP_COMPLETE);
1128 }
1129
1130 static irqreturn_t snd_korg1212_interrupt(int irq, void *dev_id)
1131 {
1132         u32 doorbellValue;
1133         struct snd_korg1212 *korg1212 = dev_id;
1134
1135         doorbellValue = readl(korg1212->inDoorbellPtr);
1136
1137         if (!doorbellValue)
1138                 return IRQ_NONE;
1139
1140         spin_lock(&korg1212->lock);
1141
1142         writel(doorbellValue, korg1212->inDoorbellPtr);
1143
1144         korg1212->irqcount++;
1145
1146         korg1212->inIRQ++;
1147
1148         switch (doorbellValue) {
1149                 case K1212_DB_DSPDownloadDone:
1150                         K1212_DEBUG_PRINTK("K1212_DEBUG: IRQ DNLD count - %ld, %x, [%s].\n",
1151                                            korg1212->irqcount, doorbellValue,
1152                                            stateName[korg1212->cardState]);
1153                         if (korg1212->cardState == K1212_STATE_DSP_IN_PROCESS) {
1154                                 korg1212->dsp_is_loaded = 1;
1155                                 wake_up(&korg1212->wait);
1156                         }
1157                         break;
1158
1159                 // ------------------------------------------------------------------------
1160                 // an error occurred - stop the card
1161                 // ------------------------------------------------------------------------
1162                 case K1212_DB_DMAERROR:
1163                         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: IRQ DMAE count - %ld, %x, [%s].\n",
1164                                                    korg1212->irqcount, doorbellValue,
1165                                                    stateName[korg1212->cardState]);
1166                         snd_printk(KERN_ERR "korg1212: DMA Error\n");
1167                         korg1212->errorcnt++;
1168                         korg1212->totalerrorcnt++;
1169                         korg1212->sharedBufferPtr->cardCommand = 0;
1170                         snd_korg1212_setCardState(korg1212, K1212_STATE_ERRORSTOP);
1171                         break;
1172
1173                 // ------------------------------------------------------------------------
1174                 // the card has stopped by our request.  Clear the command word and signal
1175                 // the semaphore in case someone is waiting for this.
1176                 // ------------------------------------------------------------------------
1177                 case K1212_DB_CARDSTOPPED:
1178                         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: IRQ CSTP count - %ld, %x, [%s].\n",
1179                                                    korg1212->irqcount, doorbellValue,
1180                                                    stateName[korg1212->cardState]);
1181                         korg1212->sharedBufferPtr->cardCommand = 0;
1182                         break;
1183
1184                 default:
1185                         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: IRQ DFLT count - %ld, %x, cpos=%d [%s].\n",
1186                                korg1212->irqcount, doorbellValue,
1187                                korg1212->currentBuffer, stateName[korg1212->cardState]);
1188                         if ((korg1212->cardState > K1212_STATE_SETUP) || korg1212->idleMonitorOn) {
1189                                 korg1212->currentBuffer++;
1190
1191                                 if (korg1212->currentBuffer >= kNumBuffers)
1192                                         korg1212->currentBuffer = 0;
1193
1194                                 if (!korg1212->running)
1195                                         break;
1196
1197                                 if (korg1212->capture_substream) {
1198                                         spin_unlock(&korg1212->lock);
1199                                         snd_pcm_period_elapsed(korg1212->capture_substream);
1200                                         spin_lock(&korg1212->lock);
1201                                 }
1202
1203                                 if (korg1212->playback_substream) {
1204                                         spin_unlock(&korg1212->lock);
1205                                         snd_pcm_period_elapsed(korg1212->playback_substream);
1206                                         spin_lock(&korg1212->lock);
1207                                 }
1208                         }
1209                         break;
1210         }
1211
1212         korg1212->inIRQ--;
1213
1214         spin_unlock(&korg1212->lock);
1215
1216         return IRQ_HANDLED;
1217 }
1218
1219 static int snd_korg1212_downloadDSPCode(struct snd_korg1212 *korg1212)
1220 {
1221         int rc;
1222
1223         K1212_DEBUG_PRINTK("K1212_DEBUG: DSP download is starting... [%s]\n",
1224                            stateName[korg1212->cardState]);
1225
1226         // ---------------------------------------------------------------
1227         // verify the state of the card before proceeding.
1228         // ---------------------------------------------------------------
1229         if (korg1212->cardState >= K1212_STATE_DSP_IN_PROCESS)
1230                 return 1;
1231
1232         snd_korg1212_setCardState(korg1212, K1212_STATE_DSP_IN_PROCESS);
1233
1234         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_StartDSPDownload,
1235                                      UpperWordSwap(korg1212->dma_dsp.addr),
1236                                      0, 0, 0);
1237         if (rc)
1238                 K1212_DEBUG_PRINTK("K1212_DEBUG: Start DSP Download RC = %d [%s]\n",
1239                                    rc, stateName[korg1212->cardState]);
1240
1241         korg1212->dsp_is_loaded = 0;
1242         wait_event_timeout(korg1212->wait, korg1212->dsp_is_loaded, HZ * CARD_BOOT_TIMEOUT);
1243         if (! korg1212->dsp_is_loaded )
1244                 return -EBUSY; /* timeout */
1245
1246         snd_korg1212_OnDSPDownloadComplete(korg1212);
1247
1248         return 0;
1249 }
1250
1251 static struct snd_pcm_hardware snd_korg1212_playback_info =
1252 {
1253         .info =              (SNDRV_PCM_INFO_MMAP |
1254                               SNDRV_PCM_INFO_MMAP_VALID |
1255                               SNDRV_PCM_INFO_INTERLEAVED),
1256         .formats =            SNDRV_PCM_FMTBIT_S16_LE,
1257         .rates =              (SNDRV_PCM_RATE_44100 |
1258                               SNDRV_PCM_RATE_48000),
1259         .rate_min =           44100,
1260         .rate_max =           48000,
1261         .channels_min =       K1212_MIN_CHANNELS,
1262         .channels_max =       K1212_MAX_CHANNELS,
1263         .buffer_bytes_max =   K1212_MAX_BUF_SIZE,
1264         .period_bytes_min =   K1212_MIN_CHANNELS * 2 * kPlayBufferFrames,
1265         .period_bytes_max =   K1212_MAX_CHANNELS * 2 * kPlayBufferFrames,
1266         .periods_min =        K1212_PERIODS,
1267         .periods_max =        K1212_PERIODS,
1268         .fifo_size =          0,
1269 };
1270
1271 static struct snd_pcm_hardware snd_korg1212_capture_info =
1272 {
1273         .info =              (SNDRV_PCM_INFO_MMAP |
1274                               SNDRV_PCM_INFO_MMAP_VALID |
1275                               SNDRV_PCM_INFO_INTERLEAVED),
1276         .formats =            SNDRV_PCM_FMTBIT_S16_LE,
1277         .rates =              (SNDRV_PCM_RATE_44100 |
1278                               SNDRV_PCM_RATE_48000),
1279         .rate_min =           44100,
1280         .rate_max =           48000,
1281         .channels_min =       K1212_MIN_CHANNELS,
1282         .channels_max =       K1212_MAX_CHANNELS,
1283         .buffer_bytes_max =   K1212_MAX_BUF_SIZE,
1284         .period_bytes_min =   K1212_MIN_CHANNELS * 2 * kPlayBufferFrames,
1285         .period_bytes_max =   K1212_MAX_CHANNELS * 2 * kPlayBufferFrames,
1286         .periods_min =        K1212_PERIODS,
1287         .periods_max =        K1212_PERIODS,
1288         .fifo_size =          0,
1289 };
1290
1291 static int snd_korg1212_silence(struct snd_korg1212 *korg1212, int pos, int count, int offset, int size)
1292 {
1293         struct KorgAudioFrame * dst =  korg1212->playDataBufsPtr[0].bufferData + pos;
1294         int i;
1295
1296         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_silence pos=%d offset=%d size=%d count=%d\n",
1297                                    pos, offset, size, count);
1298         snd_assert(pos + count <= K1212_MAX_SAMPLES, return -EINVAL);
1299
1300         for (i=0; i < count; i++) {
1301 #if K1212_DEBUG_LEVEL > 0
1302                 if ( (void *) dst < (void *) korg1212->playDataBufsPtr ||
1303                      (void *) dst > (void *) korg1212->playDataBufsPtr[8].bufferData ) {
1304                         printk(KERN_DEBUG "K1212_DEBUG: snd_korg1212_silence KERNEL EFAULT dst=%p iter=%d\n",
1305                                dst, i);
1306                         return -EFAULT;
1307                 }
1308 #endif
1309                 memset((void*) dst + offset, 0, size);
1310                 dst++;
1311         }
1312
1313         return 0;
1314 }
1315
1316 static int snd_korg1212_copy_to(struct snd_korg1212 *korg1212, void __user *dst, int pos, int count, int offset, int size)
1317 {
1318         struct KorgAudioFrame * src =  korg1212->recordDataBufsPtr[0].bufferData + pos;
1319         int i, rc;
1320
1321         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_copy_to pos=%d offset=%d size=%d\n",
1322                                    pos, offset, size);
1323         snd_assert(pos + count <= K1212_MAX_SAMPLES, return -EINVAL);
1324
1325         for (i=0; i < count; i++) {
1326 #if K1212_DEBUG_LEVEL > 0
1327                 if ( (void *) src < (void *) korg1212->recordDataBufsPtr ||
1328                      (void *) src > (void *) korg1212->recordDataBufsPtr[8].bufferData ) {
1329                         printk(KERN_DEBUG "K1212_DEBUG: snd_korg1212_copy_to KERNEL EFAULT, src=%p dst=%p iter=%d\n", src, dst, i);
1330                         return -EFAULT;
1331                 }
1332 #endif
1333                 rc = copy_to_user(dst + offset, src, size);
1334                 if (rc) {
1335                         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_copy_to USER EFAULT src=%p dst=%p iter=%d\n", src, dst, i);
1336                         return -EFAULT;
1337                 }
1338                 src++;
1339                 dst += size;
1340         }
1341
1342         return 0;
1343 }
1344
1345 static int snd_korg1212_copy_from(struct snd_korg1212 *korg1212, void __user *src, int pos, int count, int offset, int size)
1346 {
1347         struct KorgAudioFrame * dst =  korg1212->playDataBufsPtr[0].bufferData + pos;
1348         int i, rc;
1349
1350         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_copy_from pos=%d offset=%d size=%d count=%d\n",
1351                                    pos, offset, size, count);
1352
1353         snd_assert(pos + count <= K1212_MAX_SAMPLES, return -EINVAL);
1354
1355         for (i=0; i < count; i++) {
1356 #if K1212_DEBUG_LEVEL > 0
1357                 if ( (void *) dst < (void *) korg1212->playDataBufsPtr ||
1358                      (void *) dst > (void *) korg1212->playDataBufsPtr[8].bufferData ) {
1359                         printk(KERN_DEBUG "K1212_DEBUG: snd_korg1212_copy_from KERNEL EFAULT, src=%p dst=%p iter=%d\n", src, dst, i);
1360                         return -EFAULT;
1361                 }
1362 #endif
1363                 rc = copy_from_user((void*) dst + offset, src, size);
1364                 if (rc) {
1365                         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_copy_from USER EFAULT src=%p dst=%p iter=%d\n", src, dst, i);
1366                         return -EFAULT;
1367                 }
1368                 dst++;
1369                 src += size;
1370         }
1371
1372         return 0;
1373 }
1374
1375 static void snd_korg1212_free_pcm(struct snd_pcm *pcm)
1376 {
1377         struct snd_korg1212 *korg1212 = pcm->private_data;
1378
1379         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_free_pcm [%s]\n",
1380                            stateName[korg1212->cardState]);
1381
1382         korg1212->pcm = NULL;
1383 }
1384
1385 static int snd_korg1212_playback_open(struct snd_pcm_substream *substream)
1386 {
1387         unsigned long flags;
1388         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1389         struct snd_pcm_runtime *runtime = substream->runtime;
1390
1391         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_playback_open [%s]\n",
1392                            stateName[korg1212->cardState]);
1393
1394         snd_korg1212_OpenCard(korg1212);
1395
1396         runtime->hw = snd_korg1212_playback_info;
1397         snd_pcm_set_runtime_buffer(substream, &korg1212->dma_play);
1398
1399         spin_lock_irqsave(&korg1212->lock, flags);
1400
1401         korg1212->playback_substream = substream;
1402         korg1212->playback_pid = current->pid;
1403         korg1212->periodsize = K1212_PERIODS;
1404         korg1212->channels = K1212_CHANNELS;
1405         korg1212->errorcnt = 0;
1406
1407         spin_unlock_irqrestore(&korg1212->lock, flags);
1408
1409         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, kPlayBufferFrames, kPlayBufferFrames);
1410         return 0;
1411 }
1412
1413
1414 static int snd_korg1212_capture_open(struct snd_pcm_substream *substream)
1415 {
1416         unsigned long flags;
1417         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1418         struct snd_pcm_runtime *runtime = substream->runtime;
1419
1420         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_capture_open [%s]\n",
1421                            stateName[korg1212->cardState]);
1422
1423         snd_korg1212_OpenCard(korg1212);
1424
1425         runtime->hw = snd_korg1212_capture_info;
1426         snd_pcm_set_runtime_buffer(substream, &korg1212->dma_rec);
1427
1428         spin_lock_irqsave(&korg1212->lock, flags);
1429
1430         korg1212->capture_substream = substream;
1431         korg1212->capture_pid = current->pid;
1432         korg1212->periodsize = K1212_PERIODS;
1433         korg1212->channels = K1212_CHANNELS;
1434
1435         spin_unlock_irqrestore(&korg1212->lock, flags);
1436
1437         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
1438                                      kPlayBufferFrames, kPlayBufferFrames);
1439         return 0;
1440 }
1441
1442 static int snd_korg1212_playback_close(struct snd_pcm_substream *substream)
1443 {
1444         unsigned long flags;
1445         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1446
1447         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_playback_close [%s]\n",
1448                            stateName[korg1212->cardState]);
1449
1450         snd_korg1212_silence(korg1212, 0, K1212_MAX_SAMPLES, 0, korg1212->channels * 2);
1451
1452         spin_lock_irqsave(&korg1212->lock, flags);
1453
1454         korg1212->playback_pid = -1;
1455         korg1212->playback_substream = NULL;
1456         korg1212->periodsize = 0;
1457
1458         spin_unlock_irqrestore(&korg1212->lock, flags);
1459
1460         snd_korg1212_CloseCard(korg1212);
1461         return 0;
1462 }
1463
1464 static int snd_korg1212_capture_close(struct snd_pcm_substream *substream)
1465 {
1466         unsigned long flags;
1467         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1468
1469         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_capture_close [%s]\n",
1470                            stateName[korg1212->cardState]);
1471
1472         spin_lock_irqsave(&korg1212->lock, flags);
1473
1474         korg1212->capture_pid = -1;
1475         korg1212->capture_substream = NULL;
1476         korg1212->periodsize = 0;
1477
1478         spin_unlock_irqrestore(&korg1212->lock, flags);
1479
1480         snd_korg1212_CloseCard(korg1212);
1481         return 0;
1482 }
1483
1484 static int snd_korg1212_ioctl(struct snd_pcm_substream *substream,
1485                              unsigned int cmd, void *arg)
1486 {
1487         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_ioctl: cmd=%d\n", cmd);
1488
1489         if (cmd == SNDRV_PCM_IOCTL1_CHANNEL_INFO ) {
1490                 struct snd_pcm_channel_info *info = arg;
1491                 info->offset = 0;
1492                 info->first = info->channel * 16;
1493                 info->step = 256;
1494                 K1212_DEBUG_PRINTK("K1212_DEBUG: channel_info %d:, offset=%ld, first=%d, step=%d\n", info->channel, info->offset, info->first, info->step);
1495                 return 0;
1496         }
1497
1498         return snd_pcm_lib_ioctl(substream, cmd, arg);
1499 }
1500
1501 static int snd_korg1212_hw_params(struct snd_pcm_substream *substream,
1502                              struct snd_pcm_hw_params *params)
1503 {
1504         unsigned long flags;
1505         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1506         int err;
1507         pid_t this_pid;
1508         pid_t other_pid;
1509
1510         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_hw_params [%s]\n",
1511                            stateName[korg1212->cardState]);
1512
1513         spin_lock_irqsave(&korg1212->lock, flags);
1514
1515         if (substream->pstr->stream == SNDRV_PCM_STREAM_PLAYBACK) {
1516                 this_pid = korg1212->playback_pid;
1517                 other_pid = korg1212->capture_pid;
1518         } else {
1519                 this_pid = korg1212->capture_pid;
1520                 other_pid = korg1212->playback_pid;
1521         }
1522
1523         if ((other_pid > 0) && (this_pid != other_pid)) {
1524
1525                 /* The other stream is open, and not by the same
1526                    task as this one. Make sure that the parameters
1527                    that matter are the same.
1528                  */
1529
1530                 if ((int)params_rate(params) != korg1212->clkRate) {
1531                         spin_unlock_irqrestore(&korg1212->lock, flags);
1532                         _snd_pcm_hw_param_setempty(params, SNDRV_PCM_HW_PARAM_RATE);
1533                         return -EBUSY;
1534                 }
1535
1536                 spin_unlock_irqrestore(&korg1212->lock, flags);
1537                 return 0;
1538         }
1539
1540         if ((err = snd_korg1212_SetRate(korg1212, params_rate(params))) < 0) {
1541                 spin_unlock_irqrestore(&korg1212->lock, flags);
1542                 return err;
1543         }
1544
1545         korg1212->channels = params_channels(params);
1546         korg1212->periodsize = K1212_PERIOD_BYTES;
1547
1548         spin_unlock_irqrestore(&korg1212->lock, flags);
1549
1550         return 0;
1551 }
1552
1553 static int snd_korg1212_prepare(struct snd_pcm_substream *substream)
1554 {
1555         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1556         int rc;
1557
1558         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_prepare [%s]\n",
1559                            stateName[korg1212->cardState]);
1560
1561         spin_lock_irq(&korg1212->lock);
1562
1563         /* FIXME: we should wait for ack! */
1564         if (korg1212->stop_pending_cnt > 0) {
1565                 K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_prepare - Stop is pending... [%s]\n",
1566                                    stateName[korg1212->cardState]);
1567                 spin_unlock_irq(&korg1212->lock);
1568                 return -EAGAIN;
1569                 /*
1570                 korg1212->sharedBufferPtr->cardCommand = 0;
1571                 del_timer(&korg1212->timer);
1572                 korg1212->stop_pending_cnt = 0;
1573                 */
1574         }
1575
1576         rc = snd_korg1212_SetupForPlay(korg1212);
1577
1578         korg1212->currentBuffer = 0;
1579
1580         spin_unlock_irq(&korg1212->lock);
1581
1582         return rc ? -EINVAL : 0;
1583 }
1584
1585 static int snd_korg1212_trigger(struct snd_pcm_substream *substream,
1586                            int cmd)
1587 {
1588         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1589         int rc;
1590
1591         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_trigger [%s] cmd=%d\n",
1592                            stateName[korg1212->cardState], cmd);
1593
1594         spin_lock(&korg1212->lock);
1595         switch (cmd) {
1596                 case SNDRV_PCM_TRIGGER_START:
1597 /*
1598                         if (korg1212->running) {
1599                                 K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_trigger: Already running?\n");
1600                                 break;
1601                         }
1602 */
1603                         korg1212->running++;
1604                         rc = snd_korg1212_TriggerPlay(korg1212);
1605                         break;
1606
1607                 case SNDRV_PCM_TRIGGER_STOP:
1608 /*
1609                         if (!korg1212->running) {
1610                                 K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_trigger: Already stopped?\n");
1611                                 break;
1612                         }
1613 */
1614                         korg1212->running--;
1615                         rc = snd_korg1212_StopPlay(korg1212);
1616                         break;
1617
1618                 default:
1619                         rc = 1;
1620                         break;
1621         }
1622         spin_unlock(&korg1212->lock);
1623         return rc ? -EINVAL : 0;
1624 }
1625
1626 static snd_pcm_uframes_t snd_korg1212_playback_pointer(struct snd_pcm_substream *substream)
1627 {
1628         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1629         snd_pcm_uframes_t pos;
1630
1631         pos = korg1212->currentBuffer * kPlayBufferFrames;
1632
1633         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_playback_pointer [%s] %ld\n",
1634                                    stateName[korg1212->cardState], pos);
1635
1636         return pos;
1637 }
1638
1639 static snd_pcm_uframes_t snd_korg1212_capture_pointer(struct snd_pcm_substream *substream)
1640 {
1641         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1642         snd_pcm_uframes_t pos;
1643
1644         pos = korg1212->currentBuffer * kPlayBufferFrames;
1645
1646         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_capture_pointer [%s] %ld\n",
1647                                    stateName[korg1212->cardState], pos);
1648
1649         return pos;
1650 }
1651
1652 static int snd_korg1212_playback_copy(struct snd_pcm_substream *substream,
1653                         int channel, /* not used (interleaved data) */
1654                         snd_pcm_uframes_t pos,
1655                         void __user *src,
1656                         snd_pcm_uframes_t count)
1657 {
1658         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1659
1660         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_playback_copy [%s] %ld %ld\n",
1661                                    stateName[korg1212->cardState], pos, count);
1662
1663         return snd_korg1212_copy_from(korg1212, src, pos, count, 0, korg1212->channels * 2);
1664
1665 }
1666
1667 static int snd_korg1212_playback_silence(struct snd_pcm_substream *substream,
1668                            int channel, /* not used (interleaved data) */
1669                            snd_pcm_uframes_t pos,
1670                            snd_pcm_uframes_t count)
1671 {
1672         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1673
1674         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_playback_silence [%s]\n",
1675                                    stateName[korg1212->cardState]);
1676
1677         return snd_korg1212_silence(korg1212, pos, count, 0, korg1212->channels * 2);
1678 }
1679
1680 static int snd_korg1212_capture_copy(struct snd_pcm_substream *substream,
1681                         int channel, /* not used (interleaved data) */
1682                         snd_pcm_uframes_t pos,
1683                         void __user *dst,
1684                         snd_pcm_uframes_t count)
1685 {
1686         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1687
1688         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_capture_copy [%s] %ld %ld\n",
1689                                    stateName[korg1212->cardState], pos, count);
1690
1691         return snd_korg1212_copy_to(korg1212, dst, pos, count, 0, korg1212->channels * 2);
1692 }
1693
1694 static struct snd_pcm_ops snd_korg1212_playback_ops = {
1695         .open =         snd_korg1212_playback_open,
1696         .close =        snd_korg1212_playback_close,
1697         .ioctl =        snd_korg1212_ioctl,
1698         .hw_params =    snd_korg1212_hw_params,
1699         .prepare =      snd_korg1212_prepare,
1700         .trigger =      snd_korg1212_trigger,
1701         .pointer =      snd_korg1212_playback_pointer,
1702         .copy =         snd_korg1212_playback_copy,
1703         .silence =      snd_korg1212_playback_silence,
1704 };
1705
1706 static struct snd_pcm_ops snd_korg1212_capture_ops = {
1707         .open =         snd_korg1212_capture_open,
1708         .close =        snd_korg1212_capture_close,
1709         .ioctl =        snd_korg1212_ioctl,
1710         .hw_params =    snd_korg1212_hw_params,
1711         .prepare =      snd_korg1212_prepare,
1712         .trigger =      snd_korg1212_trigger,
1713         .pointer =      snd_korg1212_capture_pointer,
1714         .copy =         snd_korg1212_capture_copy,
1715 };
1716
1717 /*
1718  * Control Interface
1719  */
1720
1721 static int snd_korg1212_control_phase_info(struct snd_kcontrol *kcontrol,
1722                                            struct snd_ctl_elem_info *uinfo)
1723 {
1724         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1725         uinfo->count = (kcontrol->private_value >= 8) ? 2 : 1;
1726         return 0;
1727 }
1728
1729 static int snd_korg1212_control_phase_get(struct snd_kcontrol *kcontrol,
1730                                           struct snd_ctl_elem_value *u)
1731 {
1732         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1733         int i = kcontrol->private_value;
1734
1735         spin_lock_irq(&korg1212->lock);
1736
1737         u->value.integer.value[0] = korg1212->volumePhase[i];
1738
1739         if (i >= 8)
1740                 u->value.integer.value[1] = korg1212->volumePhase[i+1];
1741
1742         spin_unlock_irq(&korg1212->lock);
1743
1744         return 0;
1745 }
1746
1747 static int snd_korg1212_control_phase_put(struct snd_kcontrol *kcontrol,
1748                                           struct snd_ctl_elem_value *u)
1749 {
1750         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1751         int change = 0;
1752         int i, val;
1753
1754         spin_lock_irq(&korg1212->lock);
1755
1756         i = kcontrol->private_value;
1757
1758         korg1212->volumePhase[i] = u->value.integer.value[0];
1759
1760         val = korg1212->sharedBufferPtr->volumeData[kcontrol->private_value];
1761
1762         if ((u->value.integer.value[0] > 0) != (val < 0)) {
1763                 val = abs(val) * (korg1212->volumePhase[i] > 0 ? -1 : 1);
1764                 korg1212->sharedBufferPtr->volumeData[i] = val;
1765                 change = 1;
1766         }
1767
1768         if (i >= 8) {
1769                 korg1212->volumePhase[i+1] = u->value.integer.value[1];
1770
1771                 val = korg1212->sharedBufferPtr->volumeData[kcontrol->private_value+1];
1772
1773                 if ((u->value.integer.value[1] > 0) != (val < 0)) {
1774                         val = abs(val) * (korg1212->volumePhase[i+1] > 0 ? -1 : 1);
1775                         korg1212->sharedBufferPtr->volumeData[i+1] = val;
1776                         change = 1;
1777                 }
1778         }
1779
1780         spin_unlock_irq(&korg1212->lock);
1781
1782         return change;
1783 }
1784
1785 static int snd_korg1212_control_volume_info(struct snd_kcontrol *kcontrol,
1786                                             struct snd_ctl_elem_info *uinfo)
1787 {
1788         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1789         uinfo->count = (kcontrol->private_value >= 8) ? 2 : 1;
1790         uinfo->value.integer.min = k1212MinVolume;
1791         uinfo->value.integer.max = k1212MaxVolume;
1792         return 0;
1793 }
1794
1795 static int snd_korg1212_control_volume_get(struct snd_kcontrol *kcontrol,
1796                                            struct snd_ctl_elem_value *u)
1797 {
1798         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1799         int i;
1800
1801         spin_lock_irq(&korg1212->lock);
1802
1803         i = kcontrol->private_value;
1804         u->value.integer.value[0] = abs(korg1212->sharedBufferPtr->volumeData[i]);
1805
1806         if (i >= 8)
1807                 u->value.integer.value[1] = abs(korg1212->sharedBufferPtr->volumeData[i+1]);
1808
1809         spin_unlock_irq(&korg1212->lock);
1810
1811         return 0;
1812 }
1813
1814 static int snd_korg1212_control_volume_put(struct snd_kcontrol *kcontrol,
1815                                            struct snd_ctl_elem_value *u)
1816 {
1817         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1818         int change = 0;
1819         int i;
1820         int val;
1821
1822         spin_lock_irq(&korg1212->lock);
1823
1824         i = kcontrol->private_value;
1825
1826         if (u->value.integer.value[0] != abs(korg1212->sharedBufferPtr->volumeData[i])) {
1827                 val = korg1212->volumePhase[i] > 0 ? -1 : 1;
1828                 val *= u->value.integer.value[0];
1829                 korg1212->sharedBufferPtr->volumeData[i] = val;
1830                 change = 1;
1831         }
1832
1833         if (i >= 8) {
1834                 if (u->value.integer.value[1] != abs(korg1212->sharedBufferPtr->volumeData[i+1])) {
1835                         val = korg1212->volumePhase[i+1] > 0 ? -1 : 1;
1836                         val *= u->value.integer.value[1];
1837                         korg1212->sharedBufferPtr->volumeData[i+1] = val;
1838                         change = 1;
1839                 }
1840         }
1841
1842         spin_unlock_irq(&korg1212->lock);
1843
1844         return change;
1845 }
1846
1847 static int snd_korg1212_control_route_info(struct snd_kcontrol *kcontrol,
1848                                            struct snd_ctl_elem_info *uinfo)
1849 {
1850         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1851         uinfo->count = (kcontrol->private_value >= 8) ? 2 : 1;
1852         uinfo->value.enumerated.items = kAudioChannels;
1853         if (uinfo->value.enumerated.item > kAudioChannels-1) {
1854                 uinfo->value.enumerated.item = kAudioChannels-1;
1855         }
1856         strcpy(uinfo->value.enumerated.name, channelName[uinfo->value.enumerated.item]);
1857         return 0;
1858 }
1859
1860 static int snd_korg1212_control_route_get(struct snd_kcontrol *kcontrol,
1861                                           struct snd_ctl_elem_value *u)
1862 {
1863         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1864         int i;
1865
1866         spin_lock_irq(&korg1212->lock);
1867
1868         i = kcontrol->private_value;
1869         u->value.enumerated.item[0] = korg1212->sharedBufferPtr->routeData[i];
1870
1871         if (i >= 8)
1872                 u->value.enumerated.item[1] = korg1212->sharedBufferPtr->routeData[i+1];
1873
1874         spin_unlock_irq(&korg1212->lock);
1875
1876         return 0;
1877 }
1878
1879 static int snd_korg1212_control_route_put(struct snd_kcontrol *kcontrol,
1880                                           struct snd_ctl_elem_value *u)
1881 {
1882         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1883         int change = 0, i;
1884
1885         spin_lock_irq(&korg1212->lock);
1886
1887         i = kcontrol->private_value;
1888
1889         if (u->value.enumerated.item[0] != (unsigned) korg1212->sharedBufferPtr->volumeData[i]) {
1890                 korg1212->sharedBufferPtr->routeData[i] = u->value.enumerated.item[0];
1891                 change = 1;
1892         }
1893
1894         if (i >= 8) {
1895                 if (u->value.enumerated.item[1] != (unsigned) korg1212->sharedBufferPtr->volumeData[i+1]) {
1896                         korg1212->sharedBufferPtr->routeData[i+1] = u->value.enumerated.item[1];
1897                         change = 1;
1898                 }
1899         }
1900
1901         spin_unlock_irq(&korg1212->lock);
1902
1903         return change;
1904 }
1905
1906 static int snd_korg1212_control_info(struct snd_kcontrol *kcontrol,
1907                                      struct snd_ctl_elem_info *uinfo)
1908 {
1909         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1910         uinfo->count = 2;
1911         uinfo->value.integer.min = k1212MaxADCSens;
1912         uinfo->value.integer.max = k1212MinADCSens;
1913         return 0;
1914 }
1915
1916 static int snd_korg1212_control_get(struct snd_kcontrol *kcontrol,
1917                                     struct snd_ctl_elem_value *u)
1918 {
1919         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1920
1921         spin_lock_irq(&korg1212->lock);
1922
1923         u->value.integer.value[0] = korg1212->leftADCInSens;
1924         u->value.integer.value[1] = korg1212->rightADCInSens;
1925
1926         spin_unlock_irq(&korg1212->lock);
1927
1928         return 0;
1929 }
1930
1931 static int snd_korg1212_control_put(struct snd_kcontrol *kcontrol,
1932                                     struct snd_ctl_elem_value *u)
1933 {
1934         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1935         int change = 0;
1936
1937         spin_lock_irq(&korg1212->lock);
1938
1939         if (u->value.integer.value[0] != korg1212->leftADCInSens) {
1940                 korg1212->leftADCInSens = u->value.integer.value[0];
1941                 change = 1;
1942         }
1943         if (u->value.integer.value[1] != korg1212->rightADCInSens) {
1944                 korg1212->rightADCInSens = u->value.integer.value[1];
1945                 change = 1;
1946         }
1947
1948         spin_unlock_irq(&korg1212->lock);
1949
1950         if (change)
1951                 snd_korg1212_WriteADCSensitivity(korg1212);
1952
1953         return change;
1954 }
1955
1956 static int snd_korg1212_control_sync_info(struct snd_kcontrol *kcontrol,
1957                                           struct snd_ctl_elem_info *uinfo)
1958 {
1959         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1960         uinfo->count = 1;
1961         uinfo->value.enumerated.items = 3;
1962         if (uinfo->value.enumerated.item > 2) {
1963                 uinfo->value.enumerated.item = 2;
1964         }
1965         strcpy(uinfo->value.enumerated.name, clockSourceTypeName[uinfo->value.enumerated.item]);
1966         return 0;
1967 }
1968
1969 static int snd_korg1212_control_sync_get(struct snd_kcontrol *kcontrol,
1970                                          struct snd_ctl_elem_value *ucontrol)
1971 {
1972         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1973
1974         spin_lock_irq(&korg1212->lock);
1975
1976         ucontrol->value.enumerated.item[0] = korg1212->clkSource;
1977
1978         spin_unlock_irq(&korg1212->lock);
1979         return 0;
1980 }
1981
1982 static int snd_korg1212_control_sync_put(struct snd_kcontrol *kcontrol,
1983                                          struct snd_ctl_elem_value *ucontrol)
1984 {
1985         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1986         unsigned int val;
1987         int change;
1988
1989         val = ucontrol->value.enumerated.item[0] % 3;
1990         spin_lock_irq(&korg1212->lock);
1991         change = val != korg1212->clkSource;
1992         snd_korg1212_SetClockSource(korg1212, val);
1993         spin_unlock_irq(&korg1212->lock);
1994         return change;
1995 }
1996
1997 #define MON_MIXER(ord,c_name)                                                                   \
1998         {                                                                                       \
1999                 .access =       SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,       \
2000                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,                                     \
2001                 .name =         c_name " Monitor Volume",                                       \
2002                 .info =         snd_korg1212_control_volume_info,                               \
2003                 .get =          snd_korg1212_control_volume_get,                                \
2004                 .put =          snd_korg1212_control_volume_put,                                \
2005                 .private_value = ord,                                                           \
2006         },                                                                                      \
2007         {                                                                                       \
2008                 .access =       SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,       \
2009                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,                                     \
2010                 .name =         c_name " Monitor Route",                                        \
2011                 .info =         snd_korg1212_control_route_info,                                \
2012                 .get =          snd_korg1212_control_route_get,                                 \
2013                 .put =          snd_korg1212_control_route_put,                                 \
2014                 .private_value = ord,                                                           \
2015         },                                                                                      \
2016         {                                                                                       \
2017                 .access =       SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,       \
2018                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,                                     \
2019                 .name =         c_name " Monitor Phase Invert",                                 \
2020                 .info =         snd_korg1212_control_phase_info,                                \
2021                 .get =          snd_korg1212_control_phase_get,                                 \
2022                 .put =          snd_korg1212_control_phase_put,                                 \
2023                 .private_value = ord,                                                           \
2024         }
2025
2026 static struct snd_kcontrol_new snd_korg1212_controls[] = {
2027         MON_MIXER(8, "Analog"),
2028         MON_MIXER(10, "SPDIF"),
2029         MON_MIXER(0, "ADAT-1"), MON_MIXER(1, "ADAT-2"), MON_MIXER(2, "ADAT-3"), MON_MIXER(3, "ADAT-4"),
2030         MON_MIXER(4, "ADAT-5"), MON_MIXER(5, "ADAT-6"), MON_MIXER(6, "ADAT-7"), MON_MIXER(7, "ADAT-8"),
2031         {
2032                 .access =       SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,
2033                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2034                 .name =         "Sync Source",
2035                 .info =         snd_korg1212_control_sync_info,
2036                 .get =          snd_korg1212_control_sync_get,
2037                 .put =          snd_korg1212_control_sync_put,
2038         },
2039         {
2040                 .access =       SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,
2041                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2042                 .name =         "ADC Attenuation",
2043                 .info =         snd_korg1212_control_info,
2044                 .get =          snd_korg1212_control_get,
2045                 .put =          snd_korg1212_control_put,
2046         }
2047 };
2048
2049 /*
2050  * proc interface
2051  */
2052
2053 static void snd_korg1212_proc_read(struct snd_info_entry *entry,
2054                                    struct snd_info_buffer *buffer)
2055 {
2056         int n;
2057         struct snd_korg1212 *korg1212 = entry->private_data;
2058
2059         snd_iprintf(buffer, korg1212->card->longname);
2060         snd_iprintf(buffer, " (index #%d)\n", korg1212->card->number + 1);
2061         snd_iprintf(buffer, "\nGeneral settings\n");
2062         snd_iprintf(buffer, "    period size: %Zd bytes\n", K1212_PERIOD_BYTES);
2063         snd_iprintf(buffer, "     clock mode: %s\n", clockSourceName[korg1212->clkSrcRate] );
2064         snd_iprintf(buffer, "  left ADC Sens: %d\n", korg1212->leftADCInSens );
2065         snd_iprintf(buffer, " right ADC Sens: %d\n", korg1212->rightADCInSens );
2066         snd_iprintf(buffer, "    Volume Info:\n");
2067         for (n=0; n<kAudioChannels; n++)
2068                 snd_iprintf(buffer, " Channel %d: %s -> %s [%d]\n", n,
2069                                     channelName[n],
2070                                     channelName[korg1212->sharedBufferPtr->routeData[n]],
2071                                     korg1212->sharedBufferPtr->volumeData[n]);
2072         snd_iprintf(buffer, "\nGeneral status\n");
2073         snd_iprintf(buffer, " ADAT Time Code: %d\n", korg1212->sharedBufferPtr->AdatTimeCode);
2074         snd_iprintf(buffer, "     Card State: %s\n", stateName[korg1212->cardState]);
2075         snd_iprintf(buffer, "Idle mon. State: %d\n", korg1212->idleMonitorOn);
2076         snd_iprintf(buffer, "Cmd retry count: %d\n", korg1212->cmdRetryCount);
2077         snd_iprintf(buffer, "      Irq count: %ld\n", korg1212->irqcount);
2078         snd_iprintf(buffer, "    Error count: %ld\n", korg1212->totalerrorcnt);
2079 }
2080
2081 static void __devinit snd_korg1212_proc_init(struct snd_korg1212 *korg1212)
2082 {
2083         struct snd_info_entry *entry;
2084
2085         if (! snd_card_proc_new(korg1212->card, "korg1212", &entry))
2086                 snd_info_set_text_ops(entry, korg1212, snd_korg1212_proc_read);
2087 }
2088
2089 static int
2090 snd_korg1212_free(struct snd_korg1212 *korg1212)
2091 {
2092         snd_korg1212_TurnOffIdleMonitor(korg1212);
2093
2094         if (korg1212->irq >= 0) {
2095                 synchronize_irq(korg1212->irq);
2096                 snd_korg1212_DisableCardInterrupts(korg1212);
2097                 free_irq(korg1212->irq, korg1212);
2098                 korg1212->irq = -1;
2099         }
2100
2101         if (korg1212->iobase != NULL) {
2102                 iounmap(korg1212->iobase);
2103                 korg1212->iobase = NULL;
2104         }
2105
2106         pci_release_regions(korg1212->pci);
2107
2108         // ----------------------------------------------------
2109         // free up memory resources used for the DSP download.
2110         // ----------------------------------------------------
2111         if (korg1212->dma_dsp.area) {
2112                 snd_dma_free_pages(&korg1212->dma_dsp);
2113                 korg1212->dma_dsp.area = NULL;
2114         }
2115
2116 #ifndef K1212_LARGEALLOC
2117
2118         // ------------------------------------------------------
2119         // free up memory resources used for the Play/Rec Buffers
2120         // ------------------------------------------------------
2121         if (korg1212->dma_play.area) {
2122                 snd_dma_free_pages(&korg1212->dma_play);
2123                 korg1212->dma_play.area = NULL;
2124         }
2125
2126         if (korg1212->dma_rec.area) {
2127                 snd_dma_free_pages(&korg1212->dma_rec);
2128                 korg1212->dma_rec.area = NULL;
2129         }
2130
2131 #endif
2132
2133         // ----------------------------------------------------
2134         // free up memory resources used for the Shared Buffers
2135         // ----------------------------------------------------
2136         if (korg1212->dma_shared.area) {
2137                 snd_dma_free_pages(&korg1212->dma_shared);
2138                 korg1212->dma_shared.area = NULL;
2139         }
2140
2141         pci_disable_device(korg1212->pci);
2142         kfree(korg1212);
2143         return 0;
2144 }
2145
2146 static int snd_korg1212_dev_free(struct snd_device *device)
2147 {
2148         struct snd_korg1212 *korg1212 = device->device_data;
2149         K1212_DEBUG_PRINTK("K1212_DEBUG: Freeing device\n");
2150         return snd_korg1212_free(korg1212);
2151 }
2152
2153 static int __devinit snd_korg1212_create(struct snd_card *card, struct pci_dev *pci,
2154                                          struct snd_korg1212 ** rchip)
2155
2156 {
2157         int err, rc;
2158         unsigned int i;
2159         unsigned ioport_size, iomem_size, iomem2_size;
2160         struct snd_korg1212 * korg1212;
2161         const struct firmware *dsp_code;
2162
2163         static struct snd_device_ops ops = {
2164                 .dev_free = snd_korg1212_dev_free,
2165         };
2166
2167         * rchip = NULL;
2168         if ((err = pci_enable_device(pci)) < 0)
2169                 return err;
2170
2171         korg1212 = kzalloc(sizeof(*korg1212), GFP_KERNEL);
2172         if (korg1212 == NULL) {
2173                 pci_disable_device(pci);
2174                 return -ENOMEM;
2175         }
2176
2177         korg1212->card = card;
2178         korg1212->pci = pci;
2179
2180         init_waitqueue_head(&korg1212->wait);
2181         spin_lock_init(&korg1212->lock);
2182         mutex_init(&korg1212->open_mutex);
2183         init_timer(&korg1212->timer);
2184         korg1212->timer.function = snd_korg1212_timer_func;
2185         korg1212->timer.data = (unsigned long)korg1212;
2186
2187         korg1212->irq = -1;
2188         korg1212->clkSource = K1212_CLKIDX_Local;
2189         korg1212->clkRate = 44100;
2190         korg1212->inIRQ = 0;
2191         korg1212->running = 0;
2192         korg1212->opencnt = 0;
2193         korg1212->playcnt = 0;
2194         korg1212->setcnt = 0;
2195         korg1212->totalerrorcnt = 0;
2196         korg1212->playback_pid = -1;
2197         korg1212->capture_pid = -1;
2198         snd_korg1212_setCardState(korg1212, K1212_STATE_UNINITIALIZED);
2199         korg1212->idleMonitorOn = 0;
2200         korg1212->clkSrcRate = K1212_CLKIDX_LocalAt44_1K;
2201         korg1212->leftADCInSens = k1212MaxADCSens;
2202         korg1212->rightADCInSens = k1212MaxADCSens;
2203
2204         for (i=0; i<kAudioChannels; i++)
2205                 korg1212->volumePhase[i] = 0;
2206
2207         if ((err = pci_request_regions(pci, "korg1212")) < 0) {
2208                 kfree(korg1212);
2209                 pci_disable_device(pci);
2210                 return err;
2211         }
2212
2213         korg1212->iomem = pci_resource_start(korg1212->pci, 0);
2214         korg1212->ioport = pci_resource_start(korg1212->pci, 1);
2215         korg1212->iomem2 = pci_resource_start(korg1212->pci, 2);
2216
2217         iomem_size = pci_resource_len(korg1212->pci, 0);
2218         ioport_size = pci_resource_len(korg1212->pci, 1);
2219         iomem2_size = pci_resource_len(korg1212->pci, 2);
2220
2221         K1212_DEBUG_PRINTK("K1212_DEBUG: resources:\n"
2222                    "    iomem = 0x%lx (%d)\n"
2223                    "    ioport  = 0x%lx (%d)\n"
2224                    "    iomem = 0x%lx (%d)\n"
2225                    "    [%s]\n",
2226                    korg1212->iomem, iomem_size,
2227                    korg1212->ioport, ioport_size,
2228                    korg1212->iomem2, iomem2_size,
2229                    stateName[korg1212->cardState]);
2230
2231         if ((korg1212->iobase = ioremap(korg1212->iomem, iomem_size)) == NULL) {
2232                 snd_printk(KERN_ERR "korg1212: unable to remap memory region 0x%lx-0x%lx\n", korg1212->iomem,
2233                            korg1212->iomem + iomem_size - 1);
2234                 snd_korg1212_free(korg1212);
2235                 return -EBUSY;
2236         }
2237
2238         err = request_irq(pci->irq, snd_korg1212_interrupt,
2239                           IRQF_SHARED,
2240                           "korg1212", korg1212);
2241
2242         if (err) {
2243                 snd_printk(KERN_ERR "korg1212: unable to grab IRQ %d\n", pci->irq);
2244                 snd_korg1212_free(korg1212);
2245                 return -EBUSY;
2246         }
2247
2248         korg1212->irq = pci->irq;
2249
2250         pci_set_master(korg1212->pci);
2251
2252         korg1212->statusRegPtr = (u32 __iomem *) (korg1212->iobase + STATUS_REG_OFFSET);
2253         korg1212->outDoorbellPtr = (u32 __iomem *) (korg1212->iobase + OUT_DOORBELL_OFFSET);
2254         korg1212->inDoorbellPtr = (u32 __iomem *) (korg1212->iobase + IN_DOORBELL_OFFSET);
2255         korg1212->mailbox0Ptr = (u32 __iomem *) (korg1212->iobase + MAILBOX0_OFFSET);
2256         korg1212->mailbox1Ptr = (u32 __iomem *) (korg1212->iobase + MAILBOX1_OFFSET);
2257         korg1212->mailbox2Ptr = (u32 __iomem *) (korg1212->iobase + MAILBOX2_OFFSET);
2258         korg1212->mailbox3Ptr = (u32 __iomem *) (korg1212->iobase + MAILBOX3_OFFSET);
2259         korg1212->controlRegPtr = (u32 __iomem *) (korg1212->iobase + PCI_CONTROL_OFFSET);
2260         korg1212->sensRegPtr = (u16 __iomem *) (korg1212->iobase + SENS_CONTROL_OFFSET);
2261         korg1212->idRegPtr = (u32 __iomem *) (korg1212->iobase + DEV_VEND_ID_OFFSET);
2262
2263         K1212_DEBUG_PRINTK("K1212_DEBUG: card registers:\n"
2264                    "    Status register = 0x%p\n"
2265                    "    OutDoorbell     = 0x%p\n"
2266                    "    InDoorbell      = 0x%p\n"
2267                    "    Mailbox0        = 0x%p\n"
2268                    "    Mailbox1        = 0x%p\n"
2269                    "    Mailbox2        = 0x%p\n"
2270                    "    Mailbox3        = 0x%p\n"
2271                    "    ControlReg      = 0x%p\n"
2272                    "    SensReg         = 0x%p\n"
2273                    "    IDReg           = 0x%p\n"
2274                    "    [%s]\n",
2275                    korg1212->statusRegPtr,
2276                    korg1212->outDoorbellPtr,
2277                    korg1212->inDoorbellPtr,
2278                    korg1212->mailbox0Ptr,
2279                    korg1212->mailbox1Ptr,
2280                    korg1212->mailbox2Ptr,
2281                    korg1212->mailbox3Ptr,
2282                    korg1212->controlRegPtr,
2283                    korg1212->sensRegPtr,
2284                    korg1212->idRegPtr,
2285                    stateName[korg1212->cardState]);
2286
2287         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
2288                                 sizeof(struct KorgSharedBuffer), &korg1212->dma_shared) < 0) {
2289                 snd_printk(KERN_ERR "korg1212: can not allocate shared buffer memory (%Zd bytes)\n", sizeof(struct KorgSharedBuffer));
2290                 snd_korg1212_free(korg1212);
2291                 return -ENOMEM;
2292         }
2293         korg1212->sharedBufferPtr = (struct KorgSharedBuffer *)korg1212->dma_shared.area;
2294         korg1212->sharedBufferPhy = korg1212->dma_shared.addr;
2295
2296         K1212_DEBUG_PRINTK("K1212_DEBUG: Shared Buffer Area = 0x%p (0x%08lx), %d bytes\n", korg1212->sharedBufferPtr, korg1212->sharedBufferPhy, sizeof(struct KorgSharedBuffer));
2297
2298 #ifndef K1212_LARGEALLOC
2299
2300         korg1212->DataBufsSize = sizeof(struct KorgAudioBuffer) * kNumBuffers;
2301
2302         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
2303                                 korg1212->DataBufsSize, &korg1212->dma_play) < 0) {
2304                 snd_printk(KERN_ERR "korg1212: can not allocate play data buffer memory (%d bytes)\n", korg1212->DataBufsSize);
2305                 snd_korg1212_free(korg1212);
2306                 return -ENOMEM;
2307         }
2308         korg1212->playDataBufsPtr = (struct KorgAudioBuffer *)korg1212->dma_play.area;
2309         korg1212->PlayDataPhy = korg1212->dma_play.addr;
2310
2311         K1212_DEBUG_PRINTK("K1212_DEBUG: Play Data Area = 0x%p (0x%08x), %d bytes\n",
2312                 korg1212->playDataBufsPtr, korg1212->PlayDataPhy, korg1212->DataBufsSize);
2313
2314         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
2315                                 korg1212->DataBufsSize, &korg1212->dma_rec) < 0) {
2316                 snd_printk(KERN_ERR "korg1212: can not allocate record data buffer memory (%d bytes)\n", korg1212->DataBufsSize);
2317                 snd_korg1212_free(korg1212);
2318                 return -ENOMEM;
2319         }
2320         korg1212->recordDataBufsPtr = (struct KorgAudioBuffer *)korg1212->dma_rec.area;
2321         korg1212->RecDataPhy = korg1212->dma_rec.addr;
2322
2323         K1212_DEBUG_PRINTK("K1212_DEBUG: Record Data Area = 0x%p (0x%08x), %d bytes\n",
2324                 korg1212->recordDataBufsPtr, korg1212->RecDataPhy, korg1212->DataBufsSize);
2325
2326 #else // K1212_LARGEALLOC
2327
2328         korg1212->recordDataBufsPtr = korg1212->sharedBufferPtr->recordDataBufs;
2329         korg1212->playDataBufsPtr = korg1212->sharedBufferPtr->playDataBufs;
2330         korg1212->PlayDataPhy = (u32) &((struct KorgSharedBuffer *) korg1212->sharedBufferPhy)->playDataBufs;
2331         korg1212->RecDataPhy  = (u32) &((struct KorgSharedBuffer *) korg1212->sharedBufferPhy)->recordDataBufs;
2332
2333 #endif // K1212_LARGEALLOC
2334
2335         korg1212->VolumeTablePhy = korg1212->sharedBufferPhy +
2336                 offsetof(struct KorgSharedBuffer, volumeData);
2337         korg1212->RoutingTablePhy = korg1212->sharedBufferPhy +
2338                 offsetof(struct KorgSharedBuffer, routeData);
2339         korg1212->AdatTimeCodePhy = korg1212->sharedBufferPhy +
2340                 offsetof(struct KorgSharedBuffer, AdatTimeCode);
2341
2342 #ifdef CONFIG_SND_KORG1212_FIRMWARE_IN_KERNEL
2343         dsp_code = &static_dsp_code;
2344 #else
2345         err = request_firmware(&dsp_code, "korg/k1212.dsp", &pci->dev);
2346         if (err < 0) {
2347                 release_firmware(dsp_code);
2348                 snd_printk(KERN_ERR "firmware not available\n");
2349                 snd_korg1212_free(korg1212);
2350                 return err;
2351         }
2352 #endif
2353
2354         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
2355                                 dsp_code->size, &korg1212->dma_dsp) < 0) {
2356                 snd_printk(KERN_ERR "korg1212: cannot allocate dsp code memory (%zd bytes)\n", dsp_code->size);
2357                 snd_korg1212_free(korg1212);
2358 #ifndef CONFIG_SND_KORG1212_FIRMWARE_IN_KERNEL
2359                 release_firmware(dsp_code);
2360 #endif
2361                 return -ENOMEM;
2362         }
2363
2364         K1212_DEBUG_PRINTK("K1212_DEBUG: DSP Code area = 0x%p (0x%08x) %d bytes [%s]\n",
2365                    korg1212->dma_dsp.area, korg1212->dma_dsp.addr, dsp_code->size,
2366                    stateName[korg1212->cardState]);
2367
2368         memcpy(korg1212->dma_dsp.area, dsp_code->data, dsp_code->size);
2369
2370 #ifndef CONFIG_SND_KORG1212_FIRMWARE_IN_KERNEL
2371         release_firmware(dsp_code);
2372 #endif
2373
2374         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_RebootCard, 0, 0, 0, 0);
2375
2376         if (rc)
2377                 K1212_DEBUG_PRINTK("K1212_DEBUG: Reboot Card - RC = %d [%s]\n", rc, stateName[korg1212->cardState]);
2378
2379         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, korg1212, &ops)) < 0) {
2380                 snd_korg1212_free(korg1212);
2381                 return err;
2382         }
2383
2384         snd_korg1212_EnableCardInterrupts(korg1212);
2385
2386         mdelay(CARD_BOOT_DELAY_IN_MS);
2387
2388         if (snd_korg1212_downloadDSPCode(korg1212))
2389                 return -EBUSY;
2390
2391         K1212_DEBUG_PRINTK("korg1212: dspMemPhy = %08x U[%08x], "
2392                "PlayDataPhy = %08x L[%08x]\n"
2393                "korg1212: RecDataPhy = %08x L[%08x], "
2394                "VolumeTablePhy = %08x L[%08x]\n"
2395                "korg1212: RoutingTablePhy = %08x L[%08x], "
2396                "AdatTimeCodePhy = %08x L[%08x]\n",
2397                (int)korg1212->dma_dsp.addr,    UpperWordSwap(korg1212->dma_dsp.addr),
2398                korg1212->PlayDataPhy,     LowerWordSwap(korg1212->PlayDataPhy),
2399                korg1212->RecDataPhy,      LowerWordSwap(korg1212->RecDataPhy),
2400                korg1212->VolumeTablePhy,  LowerWordSwap(korg1212->VolumeTablePhy),
2401                korg1212->RoutingTablePhy, LowerWordSwap(korg1212->RoutingTablePhy),
2402                korg1212->AdatTimeCodePhy, LowerWordSwap(korg1212->AdatTimeCodePhy));
2403
2404         if ((err = snd_pcm_new(korg1212->card, "korg1212", 0, 1, 1, &korg1212->pcm)) < 0)
2405                 return err;
2406
2407         korg1212->pcm->private_data = korg1212;
2408         korg1212->pcm->private_free = snd_korg1212_free_pcm;
2409         strcpy(korg1212->pcm->name, "korg1212");
2410
2411         snd_pcm_set_ops(korg1212->pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_korg1212_playback_ops);
2412
2413         snd_pcm_set_ops(korg1212->pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_korg1212_capture_ops);
2414
2415         korg1212->pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
2416
2417         for (i = 0; i < ARRAY_SIZE(snd_korg1212_controls); i++) {
2418                 err = snd_ctl_add(korg1212->card, snd_ctl_new1(&snd_korg1212_controls[i], korg1212));
2419                 if (err < 0)
2420                         return err;
2421         }
2422
2423         snd_korg1212_proc_init(korg1212);
2424
2425         snd_card_set_dev(card, &pci->dev);
2426
2427         * rchip = korg1212;
2428         return 0;
2429
2430 }
2431
2432 /*
2433  * Card initialisation
2434  */
2435
2436 static int __devinit
2437 snd_korg1212_probe(struct pci_dev *pci,
2438                 const struct pci_device_id *pci_id)
2439 {
2440         static int dev;
2441         struct snd_korg1212 *korg1212;
2442         struct snd_card *card;
2443         int err;
2444
2445         if (dev >= SNDRV_CARDS) {
2446                 return -ENODEV;
2447         }
2448         if (!enable[dev]) {
2449                 dev++;
2450                 return -ENOENT;
2451         }
2452         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
2453         if (card == NULL)
2454                 return -ENOMEM;
2455
2456         if ((err = snd_korg1212_create(card, pci, &korg1212)) < 0) {
2457                 snd_card_free(card);
2458                 return err;
2459         }
2460
2461         strcpy(card->driver, "korg1212");
2462         strcpy(card->shortname, "korg1212");
2463         sprintf(card->longname, "%s at 0x%lx, irq %d", card->shortname,
2464                 korg1212->iomem, korg1212->irq);
2465
2466         K1212_DEBUG_PRINTK("K1212_DEBUG: %s\n", card->longname);
2467
2468         if ((err = snd_card_register(card)) < 0) {
2469                 snd_card_free(card);
2470                 return err;
2471         }
2472         pci_set_drvdata(pci, card);
2473         dev++;
2474         return 0;
2475 }
2476
2477 static void __devexit snd_korg1212_remove(struct pci_dev *pci)
2478 {
2479         snd_card_free(pci_get_drvdata(pci));
2480         pci_set_drvdata(pci, NULL);
2481 }
2482
2483 static struct pci_driver driver = {
2484         .name = "korg1212",
2485         .id_table = snd_korg1212_ids,
2486         .probe = snd_korg1212_probe,
2487         .remove = __devexit_p(snd_korg1212_remove),
2488 };
2489
2490 static int __init alsa_card_korg1212_init(void)
2491 {
2492         return pci_register_driver(&driver);
2493 }
2494
2495 static void __exit alsa_card_korg1212_exit(void)
2496 {
2497         pci_unregister_driver(&driver);
2498 }
2499
2500 module_init(alsa_card_korg1212_init)
2501 module_exit(alsa_card_korg1212_exit)