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

   1 /*
   2  *   Driver for the Korg 1212 IO PCI card
   3  *
   4  *      Copyright (c) 2001 Haroldo Gamal <gamal@alternex.com.br>
   5  *
   6  *   This program is free software; you can redistribute it and/or modify
   7  *   it under the terms of the GNU General Public License as published by
   8  *   the Free Software Foundation; either version 2 of the License, or
   9  *   (at your option) any later version.
  10  *
  11  *   This program is distributed in the hope that it will be useful,
  12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *   GNU General Public License for more details.
  15  *
  16  *   You should have received a copy of the GNU General Public License
  17  *   along with this program; if not, write to the Free Software
  18  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  19  *
  20  */
  21
  22 #include <sound/driver.h>
  23 #include <linux/delay.h>
  24 #include <linux/init.h>
  25 #include <linux/interrupt.h>
  26 #include <linux/pci.h>
  27 #include <linux/slab.h>
  28 #include <linux/wait.h>
  29 #include <linux/moduleparam.h>
  30 #include <linux/mutex.h>
  31 #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_pcm_set_sync(substream);    // ???
1395
1396         snd_korg1212_OpenCard(korg1212);
1397
1398         runtime->hw = snd_korg1212_playback_info;
1399         snd_pcm_set_runtime_buffer(substream, &korg1212->dma_play);
1400
1401         spin_lock_irqsave(&korg1212->lock, flags);
1402
1403         korg1212->playback_substream = substream;
1404         korg1212->playback_pid = current->pid;
1405         korg1212->periodsize = K1212_PERIODS;
1406         korg1212->channels = K1212_CHANNELS;
1407         korg1212->errorcnt = 0;
1408
1409         spin_unlock_irqrestore(&korg1212->lock, flags);
1410
1411         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, kPlayBufferFrames, kPlayBufferFrames);
1412         return 0;
1413 }
1414
1415
1416 static int snd_korg1212_capture_open(struct snd_pcm_substream *substream)
1417 {
1418         unsigned long flags;
1419         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1420         struct snd_pcm_runtime *runtime = substream->runtime;
1421
1422         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_capture_open [%s]\n",
1423                            stateName[korg1212->cardState]);
1424
1425         snd_pcm_set_sync(substream);
1426
1427         snd_korg1212_OpenCard(korg1212);
1428
1429         runtime->hw = snd_korg1212_capture_info;
1430         snd_pcm_set_runtime_buffer(substream, &korg1212->dma_rec);
1431
1432         spin_lock_irqsave(&korg1212->lock, flags);
1433
1434         korg1212->capture_substream = substream;
1435         korg1212->capture_pid = current->pid;
1436         korg1212->periodsize = K1212_PERIODS;
1437         korg1212->channels = K1212_CHANNELS;
1438
1439         spin_unlock_irqrestore(&korg1212->lock, flags);
1440
1441         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
1442                                      kPlayBufferFrames, kPlayBufferFrames);
1443         return 0;
1444 }
1445
1446 static int snd_korg1212_playback_close(struct snd_pcm_substream *substream)
1447 {
1448         unsigned long flags;
1449         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1450
1451         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_playback_close [%s]\n",
1452                            stateName[korg1212->cardState]);
1453
1454         snd_korg1212_silence(korg1212, 0, K1212_MAX_SAMPLES, 0, korg1212->channels * 2);
1455
1456         spin_lock_irqsave(&korg1212->lock, flags);
1457
1458         korg1212->playback_pid = -1;
1459         korg1212->playback_substream = NULL;
1460         korg1212->periodsize = 0;
1461
1462         spin_unlock_irqrestore(&korg1212->lock, flags);
1463
1464         snd_korg1212_CloseCard(korg1212);
1465         return 0;
1466 }
1467
1468 static int snd_korg1212_capture_close(struct snd_pcm_substream *substream)
1469 {
1470         unsigned long flags;
1471         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1472
1473         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_capture_close [%s]\n",
1474                            stateName[korg1212->cardState]);
1475
1476         spin_lock_irqsave(&korg1212->lock, flags);
1477
1478         korg1212->capture_pid = -1;
1479         korg1212->capture_substream = NULL;
1480         korg1212->periodsize = 0;
1481
1482         spin_unlock_irqrestore(&korg1212->lock, flags);
1483
1484         snd_korg1212_CloseCard(korg1212);
1485         return 0;
1486 }
1487
1488 static int snd_korg1212_ioctl(struct snd_pcm_substream *substream,
1489                              unsigned int cmd, void *arg)
1490 {
1491         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_ioctl: cmd=%d\n", cmd);
1492
1493         if (cmd == SNDRV_PCM_IOCTL1_CHANNEL_INFO ) {
1494                 struct snd_pcm_channel_info *info = arg;
1495                 info->offset = 0;
1496                 info->first = info->channel * 16;
1497                 info->step = 256;
1498                 K1212_DEBUG_PRINTK("K1212_DEBUG: channel_info %d:, offset=%ld, first=%d, step=%d\n", info->channel, info->offset, info->first, info->step);
1499                 return 0;
1500         }
1501
1502         return snd_pcm_lib_ioctl(substream, cmd, arg);
1503 }
1504
1505 static int snd_korg1212_hw_params(struct snd_pcm_substream *substream,
1506                              struct snd_pcm_hw_params *params)
1507 {
1508         unsigned long flags;
1509         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1510         int err;
1511         pid_t this_pid;
1512         pid_t other_pid;
1513
1514         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_hw_params [%s]\n",
1515                            stateName[korg1212->cardState]);
1516
1517         spin_lock_irqsave(&korg1212->lock, flags);
1518
1519         if (substream->pstr->stream == SNDRV_PCM_STREAM_PLAYBACK) {
1520                 this_pid = korg1212->playback_pid;
1521                 other_pid = korg1212->capture_pid;
1522         } else {
1523                 this_pid = korg1212->capture_pid;
1524                 other_pid = korg1212->playback_pid;
1525         }
1526
1527         if ((other_pid > 0) && (this_pid != other_pid)) {
1528
1529                 /* The other stream is open, and not by the same
1530                    task as this one. Make sure that the parameters
1531                    that matter are the same.
1532                  */
1533
1534                 if ((int)params_rate(params) != korg1212->clkRate) {
1535                         spin_unlock_irqrestore(&korg1212->lock, flags);
1536                         _snd_pcm_hw_param_setempty(params, SNDRV_PCM_HW_PARAM_RATE);
1537                         return -EBUSY;
1538                 }
1539
1540                 spin_unlock_irqrestore(&korg1212->lock, flags);
1541                 return 0;
1542         }
1543
1544         if ((err = snd_korg1212_SetRate(korg1212, params_rate(params))) < 0) {
1545                 spin_unlock_irqrestore(&korg1212->lock, flags);
1546                 return err;
1547         }
1548
1549         korg1212->channels = params_channels(params);
1550         korg1212->periodsize = K1212_PERIOD_BYTES;
1551
1552         spin_unlock_irqrestore(&korg1212->lock, flags);
1553
1554         return 0;
1555 }
1556
1557 static int snd_korg1212_prepare(struct snd_pcm_substream *substream)
1558 {
1559         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1560         int rc;
1561
1562         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_prepare [%s]\n",
1563                            stateName[korg1212->cardState]);
1564
1565         spin_lock_irq(&korg1212->lock);
1566
1567         /* FIXME: we should wait for ack! */
1568         if (korg1212->stop_pending_cnt > 0) {
1569                 K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_prepare - Stop is pending... [%s]\n",
1570                                    stateName[korg1212->cardState]);
1571                 spin_unlock_irq(&korg1212->lock);
1572                 return -EAGAIN;
1573                 /*
1574                 korg1212->sharedBufferPtr->cardCommand = 0;
1575                 del_timer(&korg1212->timer);
1576                 korg1212->stop_pending_cnt = 0;
1577                 */
1578         }
1579
1580         rc = snd_korg1212_SetupForPlay(korg1212);
1581
1582         korg1212->currentBuffer = 0;
1583
1584         spin_unlock_irq(&korg1212->lock);
1585
1586         return rc ? -EINVAL : 0;
1587 }
1588
1589 static int snd_korg1212_trigger(struct snd_pcm_substream *substream,
1590                            int cmd)
1591 {
1592         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1593         int rc;
1594
1595         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_trigger [%s] cmd=%d\n",
1596                            stateName[korg1212->cardState], cmd);
1597
1598         spin_lock(&korg1212->lock);
1599         switch (cmd) {
1600                 case SNDRV_PCM_TRIGGER_START:
1601 /*
1602                         if (korg1212->running) {
1603                                 K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_trigger: Already running?\n");
1604                                 break;
1605                         }
1606 */
1607                         korg1212->running++;
1608                         rc = snd_korg1212_TriggerPlay(korg1212);
1609                         break;
1610
1611                 case SNDRV_PCM_TRIGGER_STOP:
1612 /*
1613                         if (!korg1212->running) {
1614                                 K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_trigger: Already stopped?\n");
1615                                 break;
1616                         }
1617 */
1618                         korg1212->running--;
1619                         rc = snd_korg1212_StopPlay(korg1212);
1620                         break;
1621
1622                 default:
1623                         rc = 1;
1624                         break;
1625         }
1626         spin_unlock(&korg1212->lock);
1627         return rc ? -EINVAL : 0;
1628 }
1629
1630 static snd_pcm_uframes_t snd_korg1212_playback_pointer(struct snd_pcm_substream *substream)
1631 {
1632         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1633         snd_pcm_uframes_t pos;
1634
1635         pos = korg1212->currentBuffer * kPlayBufferFrames;
1636
1637         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_playback_pointer [%s] %ld\n",
1638                                    stateName[korg1212->cardState], pos);
1639
1640         return pos;
1641 }
1642
1643 static snd_pcm_uframes_t snd_korg1212_capture_pointer(struct snd_pcm_substream *substream)
1644 {
1645         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1646         snd_pcm_uframes_t pos;
1647
1648         pos = korg1212->currentBuffer * kPlayBufferFrames;
1649
1650         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_capture_pointer [%s] %ld\n",
1651                                    stateName[korg1212->cardState], pos);
1652
1653         return pos;
1654 }
1655
1656 static int snd_korg1212_playback_copy(struct snd_pcm_substream *substream,
1657                         int channel, /* not used (interleaved data) */
1658                         snd_pcm_uframes_t pos,
1659                         void __user *src,
1660                         snd_pcm_uframes_t count)
1661 {
1662         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1663
1664         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_playback_copy [%s] %ld %ld\n",
1665                                    stateName[korg1212->cardState], pos, count);
1666
1667         return snd_korg1212_copy_from(korg1212, src, pos, count, 0, korg1212->channels * 2);
1668
1669 }
1670
1671 static int snd_korg1212_playback_silence(struct snd_pcm_substream *substream,
1672                            int channel, /* not used (interleaved data) */
1673                            snd_pcm_uframes_t pos,
1674                            snd_pcm_uframes_t count)
1675 {
1676         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1677
1678         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_playback_silence [%s]\n",
1679                                    stateName[korg1212->cardState]);
1680
1681         return snd_korg1212_silence(korg1212, pos, count, 0, korg1212->channels * 2);
1682 }
1683
1684 static int snd_korg1212_capture_copy(struct snd_pcm_substream *substream,
1685                         int channel, /* not used (interleaved data) */
1686                         snd_pcm_uframes_t pos,
1687                         void __user *dst,
1688                         snd_pcm_uframes_t count)
1689 {
1690         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1691
1692         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_capture_copy [%s] %ld %ld\n",
1693                                    stateName[korg1212->cardState], pos, count);
1694
1695         return snd_korg1212_copy_to(korg1212, dst, pos, count, 0, korg1212->channels * 2);
1696 }
1697
1698 static struct snd_pcm_ops snd_korg1212_playback_ops = {
1699         .open =         snd_korg1212_playback_open,
1700         .close =        snd_korg1212_playback_close,
1701         .ioctl =        snd_korg1212_ioctl,
1702         .hw_params =    snd_korg1212_hw_params,
1703         .prepare =      snd_korg1212_prepare,
1704         .trigger =      snd_korg1212_trigger,
1705         .pointer =      snd_korg1212_playback_pointer,
1706         .copy =         snd_korg1212_playback_copy,
1707         .silence =      snd_korg1212_playback_silence,
1708 };
1709
1710 static struct snd_pcm_ops snd_korg1212_capture_ops = {
1711         .open =         snd_korg1212_capture_open,
1712         .close =        snd_korg1212_capture_close,
1713         .ioctl =        snd_korg1212_ioctl,
1714         .hw_params =    snd_korg1212_hw_params,
1715         .prepare =      snd_korg1212_prepare,
1716         .trigger =      snd_korg1212_trigger,
1717         .pointer =      snd_korg1212_capture_pointer,
1718         .copy =         snd_korg1212_capture_copy,
1719 };
1720
1721 /*
1722  * Control Interface
1723  */
1724
1725 static int snd_korg1212_control_phase_info(struct snd_kcontrol *kcontrol,
1726                                            struct snd_ctl_elem_info *uinfo)
1727 {
1728         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1729         uinfo->count = (kcontrol->private_value >= 8) ? 2 : 1;
1730         return 0;
1731 }
1732
1733 static int snd_korg1212_control_phase_get(struct snd_kcontrol *kcontrol,
1734                                           struct snd_ctl_elem_value *u)
1735 {
1736         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1737         int i = kcontrol->private_value;
1738
1739         spin_lock_irq(&korg1212->lock);
1740
1741         u->value.integer.value[0] = korg1212->volumePhase[i];
1742
1743         if (i >= 8)
1744                 u->value.integer.value[1] = korg1212->volumePhase[i+1];
1745
1746         spin_unlock_irq(&korg1212->lock);
1747
1748         return 0;
1749 }
1750
1751 static int snd_korg1212_control_phase_put(struct snd_kcontrol *kcontrol,
1752                                           struct snd_ctl_elem_value *u)
1753 {
1754         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1755         int change = 0;
1756         int i, val;
1757
1758         spin_lock_irq(&korg1212->lock);
1759
1760         i = kcontrol->private_value;
1761
1762         korg1212->volumePhase[i] = u->value.integer.value[0];
1763
1764         val = korg1212->sharedBufferPtr->volumeData[kcontrol->private_value];
1765
1766         if ((u->value.integer.value[0] > 0) != (val < 0)) {
1767                 val = abs(val) * (korg1212->volumePhase[i] > 0 ? -1 : 1);
1768                 korg1212->sharedBufferPtr->volumeData[i] = val;
1769                 change = 1;
1770         }
1771
1772         if (i >= 8) {
1773                 korg1212->volumePhase[i+1] = u->value.integer.value[1];
1774
1775                 val = korg1212->sharedBufferPtr->volumeData[kcontrol->private_value+1];
1776
1777                 if ((u->value.integer.value[1] > 0) != (val < 0)) {
1778                         val = abs(val) * (korg1212->volumePhase[i+1] > 0 ? -1 : 1);
1779                         korg1212->sharedBufferPtr->volumeData[i+1] = val;
1780                         change = 1;
1781                 }
1782         }
1783
1784         spin_unlock_irq(&korg1212->lock);
1785
1786         return change;
1787 }
1788
1789 static int snd_korg1212_control_volume_info(struct snd_kcontrol *kcontrol,
1790                                             struct snd_ctl_elem_info *uinfo)
1791 {
1792         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1793         uinfo->count = (kcontrol->private_value >= 8) ? 2 : 1;
1794         uinfo->value.integer.min = k1212MinVolume;
1795         uinfo->value.integer.max = k1212MaxVolume;
1796         return 0;
1797 }
1798
1799 static int snd_korg1212_control_volume_get(struct snd_kcontrol *kcontrol,
1800                                            struct snd_ctl_elem_value *u)
1801 {
1802         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1803         int i;
1804
1805         spin_lock_irq(&korg1212->lock);
1806
1807         i = kcontrol->private_value;
1808         u->value.integer.value[0] = abs(korg1212->sharedBufferPtr->volumeData[i]);
1809
1810         if (i >= 8)
1811                 u->value.integer.value[1] = abs(korg1212->sharedBufferPtr->volumeData[i+1]);
1812
1813         spin_unlock_irq(&korg1212->lock);
1814
1815         return 0;
1816 }
1817
1818 static int snd_korg1212_control_volume_put(struct snd_kcontrol *kcontrol,
1819                                            struct snd_ctl_elem_value *u)
1820 {
1821         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1822         int change = 0;
1823         int i;
1824         int val;
1825
1826         spin_lock_irq(&korg1212->lock);
1827
1828         i = kcontrol->private_value;
1829
1830         if (u->value.integer.value[0] != abs(korg1212->sharedBufferPtr->volumeData[i])) {
1831                 val = korg1212->volumePhase[i] > 0 ? -1 : 1;
1832                 val *= u->value.integer.value[0];
1833                 korg1212->sharedBufferPtr->volumeData[i] = val;
1834                 change = 1;
1835         }
1836
1837         if (i >= 8) {
1838                 if (u->value.integer.value[1] != abs(korg1212->sharedBufferPtr->volumeData[i+1])) {
1839                         val = korg1212->volumePhase[i+1] > 0 ? -1 : 1;
1840                         val *= u->value.integer.value[1];
1841                         korg1212->sharedBufferPtr->volumeData[i+1] = val;
1842                         change = 1;
1843                 }
1844         }
1845
1846         spin_unlock_irq(&korg1212->lock);
1847
1848         return change;
1849 }
1850
1851 static int snd_korg1212_control_route_info(struct snd_kcontrol *kcontrol,
1852                                            struct snd_ctl_elem_info *uinfo)
1853 {
1854         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1855         uinfo->count = (kcontrol->private_value >= 8) ? 2 : 1;
1856         uinfo->value.enumerated.items = kAudioChannels;
1857         if (uinfo->value.enumerated.item > kAudioChannels-1) {
1858                 uinfo->value.enumerated.item = kAudioChannels-1;
1859         }
1860         strcpy(uinfo->value.enumerated.name, channelName[uinfo->value.enumerated.item]);
1861         return 0;
1862 }
1863
1864 static int snd_korg1212_control_route_get(struct snd_kcontrol *kcontrol,
1865                                           struct snd_ctl_elem_value *u)
1866 {
1867         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1868         int i;
1869
1870         spin_lock_irq(&korg1212->lock);
1871
1872         i = kcontrol->private_value;
1873         u->value.enumerated.item[0] = korg1212->sharedBufferPtr->routeData[i];
1874
1875         if (i >= 8)
1876                 u->value.enumerated.item[1] = korg1212->sharedBufferPtr->routeData[i+1];
1877
1878         spin_unlock_irq(&korg1212->lock);
1879
1880         return 0;
1881 }
1882
1883 static int snd_korg1212_control_route_put(struct snd_kcontrol *kcontrol,
1884                                           struct snd_ctl_elem_value *u)
1885 {
1886         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1887         int change = 0, i;
1888
1889         spin_lock_irq(&korg1212->lock);
1890
1891         i = kcontrol->private_value;
1892
1893         if (u->value.enumerated.item[0] != (unsigned) korg1212->sharedBufferPtr->volumeData[i]) {
1894                 korg1212->sharedBufferPtr->routeData[i] = u->value.enumerated.item[0];
1895                 change = 1;
1896         }
1897
1898         if (i >= 8) {
1899                 if (u->value.enumerated.item[1] != (unsigned) korg1212->sharedBufferPtr->volumeData[i+1]) {
1900                         korg1212->sharedBufferPtr->routeData[i+1] = u->value.enumerated.item[1];
1901                         change = 1;
1902                 }
1903         }
1904
1905         spin_unlock_irq(&korg1212->lock);
1906
1907         return change;
1908 }
1909
1910 static int snd_korg1212_control_info(struct snd_kcontrol *kcontrol,
1911                                      struct snd_ctl_elem_info *uinfo)
1912 {
1913         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1914         uinfo->count = 2;
1915         uinfo->value.integer.min = k1212MaxADCSens;
1916         uinfo->value.integer.max = k1212MinADCSens;
1917         return 0;
1918 }
1919
1920 static int snd_korg1212_control_get(struct snd_kcontrol *kcontrol,
1921                                     struct snd_ctl_elem_value *u)
1922 {
1923         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1924
1925         spin_lock_irq(&korg1212->lock);
1926
1927         u->value.integer.value[0] = korg1212->leftADCInSens;
1928         u->value.integer.value[1] = korg1212->rightADCInSens;
1929
1930         spin_unlock_irq(&korg1212->lock);
1931
1932         return 0;
1933 }
1934
1935 static int snd_korg1212_control_put(struct snd_kcontrol *kcontrol,
1936                                     struct snd_ctl_elem_value *u)
1937 {
1938         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1939         int change = 0;
1940
1941         spin_lock_irq(&korg1212->lock);
1942
1943         if (u->value.integer.value[0] != korg1212->leftADCInSens) {
1944                 korg1212->leftADCInSens = u->value.integer.value[0];
1945                 change = 1;
1946         }
1947         if (u->value.integer.value[1] != korg1212->rightADCInSens) {
1948                 korg1212->rightADCInSens = u->value.integer.value[1];
1949                 change = 1;
1950         }
1951
1952         spin_unlock_irq(&korg1212->lock);
1953
1954         if (change)
1955                 snd_korg1212_WriteADCSensitivity(korg1212);
1956
1957         return change;
1958 }
1959
1960 static int snd_korg1212_control_sync_info(struct snd_kcontrol *kcontrol,
1961                                           struct snd_ctl_elem_info *uinfo)
1962 {
1963         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1964         uinfo->count = 1;
1965         uinfo->value.enumerated.items = 3;
1966         if (uinfo->value.enumerated.item > 2) {
1967                 uinfo->value.enumerated.item = 2;
1968         }
1969         strcpy(uinfo->value.enumerated.name, clockSourceTypeName[uinfo->value.enumerated.item]);
1970         return 0;
1971 }
1972
1973 static int snd_korg1212_control_sync_get(struct snd_kcontrol *kcontrol,
1974                                          struct snd_ctl_elem_value *ucontrol)
1975 {
1976         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1977
1978         spin_lock_irq(&korg1212->lock);
1979
1980         ucontrol->value.enumerated.item[0] = korg1212->clkSource;
1981
1982         spin_unlock_irq(&korg1212->lock);
1983         return 0;
1984 }
1985
1986 static int snd_korg1212_control_sync_put(struct snd_kcontrol *kcontrol,
1987                                          struct snd_ctl_elem_value *ucontrol)
1988 {
1989         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1990         unsigned int val;
1991         int change;
1992
1993         val = ucontrol->value.enumerated.item[0] % 3;
1994         spin_lock_irq(&korg1212->lock);
1995         change = val != korg1212->clkSource;
1996         snd_korg1212_SetClockSource(korg1212, val);
1997         spin_unlock_irq(&korg1212->lock);
1998         return change;
1999 }
2000
2001 #define MON_MIXER(ord,c_name)                                                                   \
2002         {                                                                                       \
2003                 .access =       SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,       \
2004                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,                                     \
2005                 .name =         c_name " Monitor Volume",                                       \
2006                 .info =         snd_korg1212_control_volume_info,                               \
2007                 .get =          snd_korg1212_control_volume_get,                                \
2008                 .put =          snd_korg1212_control_volume_put,                                \
2009                 .private_value = ord,                                                           \
2010         },                                                                                      \
2011         {                                                                                       \
2012                 .access =       SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,       \
2013                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,                                     \
2014                 .name =         c_name " Monitor Route",                                        \
2015                 .info =         snd_korg1212_control_route_info,                                \
2016                 .get =          snd_korg1212_control_route_get,                                 \
2017                 .put =          snd_korg1212_control_route_put,                                 \
2018                 .private_value = ord,                                                           \
2019         },                                                                                      \
2020         {                                                                                       \
2021                 .access =       SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,       \
2022                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,                                     \
2023                 .name =         c_name " Monitor Phase Invert",                                 \
2024                 .info =         snd_korg1212_control_phase_info,                                \
2025                 .get =          snd_korg1212_control_phase_get,                                 \
2026                 .put =          snd_korg1212_control_phase_put,                                 \
2027                 .private_value = ord,                                                           \
2028         }
2029
2030 static struct snd_kcontrol_new snd_korg1212_controls[] = {
2031         MON_MIXER(8, "Analog"),
2032         MON_MIXER(10, "SPDIF"),
2033         MON_MIXER(0, "ADAT-1"), MON_MIXER(1, "ADAT-2"), MON_MIXER(2, "ADAT-3"), MON_MIXER(3, "ADAT-4"),
2034         MON_MIXER(4, "ADAT-5"), MON_MIXER(5, "ADAT-6"), MON_MIXER(6, "ADAT-7"), MON_MIXER(7, "ADAT-8"),
2035         {
2036                 .access =       SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,
2037                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2038                 .name =         "Sync Source",
2039                 .info =         snd_korg1212_control_sync_info,
2040                 .get =          snd_korg1212_control_sync_get,
2041                 .put =          snd_korg1212_control_sync_put,
2042         },
2043         {
2044                 .access =       SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,
2045                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2046                 .name =         "ADC Attenuation",
2047                 .info =         snd_korg1212_control_info,
2048                 .get =          snd_korg1212_control_get,
2049                 .put =          snd_korg1212_control_put,
2050         }
2051 };
2052
2053 /*
2054  * proc interface
2055  */
2056
2057 static void snd_korg1212_proc_read(struct snd_info_entry *entry,
2058                                    struct snd_info_buffer *buffer)
2059 {
2060         int n;
2061         struct snd_korg1212 *korg1212 = entry->private_data;
2062
2063         snd_iprintf(buffer, korg1212->card->longname);
2064         snd_iprintf(buffer, " (index #%d)\n", korg1212->card->number + 1);
2065         snd_iprintf(buffer, "\nGeneral settings\n");
2066         snd_iprintf(buffer, "    period size: %Zd bytes\n", K1212_PERIOD_BYTES);
2067         snd_iprintf(buffer, "     clock mode: %s\n", clockSourceName[korg1212->clkSrcRate] );
2068         snd_iprintf(buffer, "  left ADC Sens: %d\n", korg1212->leftADCInSens );
2069         snd_iprintf(buffer, " right ADC Sens: %d\n", korg1212->rightADCInSens );
2070         snd_iprintf(buffer, "    Volume Info:\n");
2071         for (n=0; n<kAudioChannels; n++)
2072                 snd_iprintf(buffer, " Channel %d: %s -> %s [%d]\n", n,
2073                                     channelName[n],
2074                                     channelName[korg1212->sharedBufferPtr->routeData[n]],
2075                                     korg1212->sharedBufferPtr->volumeData[n]);
2076         snd_iprintf(buffer, "\nGeneral status\n");
2077         snd_iprintf(buffer, " ADAT Time Code: %d\n", korg1212->sharedBufferPtr->AdatTimeCode);
2078         snd_iprintf(buffer, "     Card State: %s\n", stateName[korg1212->cardState]);
2079         snd_iprintf(buffer, "Idle mon. State: %d\n", korg1212->idleMonitorOn);
2080         snd_iprintf(buffer, "Cmd retry count: %d\n", korg1212->cmdRetryCount);
2081         snd_iprintf(buffer, "      Irq count: %ld\n", korg1212->irqcount);
2082         snd_iprintf(buffer, "    Error count: %ld\n", korg1212->totalerrorcnt);
2083 }
2084
2085 static void __devinit snd_korg1212_proc_init(struct snd_korg1212 *korg1212)
2086 {
2087         struct snd_info_entry *entry;
2088
2089         if (! snd_card_proc_new(korg1212->card, "korg1212", &entry))
2090                 snd_info_set_text_ops(entry, korg1212, snd_korg1212_proc_read);
2091 }
2092
2093 static int
2094 snd_korg1212_free(struct snd_korg1212 *korg1212)
2095 {
2096         snd_korg1212_TurnOffIdleMonitor(korg1212);
2097
2098         if (korg1212->irq >= 0) {
2099                 synchronize_irq(korg1212->irq);
2100                 snd_korg1212_DisableCardInterrupts(korg1212);
2101                 free_irq(korg1212->irq, korg1212);
2102                 korg1212->irq = -1;
2103         }
2104
2105         if (korg1212->iobase != NULL) {
2106                 iounmap(korg1212->iobase);
2107                 korg1212->iobase = NULL;
2108         }
2109
2110         pci_release_regions(korg1212->pci);
2111
2112         // ----------------------------------------------------
2113         // free up memory resources used for the DSP download.
2114         // ----------------------------------------------------
2115         if (korg1212->dma_dsp.area) {
2116                 snd_dma_free_pages(&korg1212->dma_dsp);
2117                 korg1212->dma_dsp.area = NULL;
2118         }
2119
2120 #ifndef K1212_LARGEALLOC
2121
2122         // ------------------------------------------------------
2123         // free up memory resources used for the Play/Rec Buffers
2124         // ------------------------------------------------------
2125         if (korg1212->dma_play.area) {
2126                 snd_dma_free_pages(&korg1212->dma_play);
2127                 korg1212->dma_play.area = NULL;
2128         }
2129
2130         if (korg1212->dma_rec.area) {
2131                 snd_dma_free_pages(&korg1212->dma_rec);
2132                 korg1212->dma_rec.area = NULL;
2133         }
2134
2135 #endif
2136
2137         // ----------------------------------------------------
2138         // free up memory resources used for the Shared Buffers
2139         // ----------------------------------------------------
2140         if (korg1212->dma_shared.area) {
2141                 snd_dma_free_pages(&korg1212->dma_shared);
2142                 korg1212->dma_shared.area = NULL;
2143         }
2144
2145         pci_disable_device(korg1212->pci);
2146         kfree(korg1212);
2147         return 0;
2148 }
2149
2150 static int snd_korg1212_dev_free(struct snd_device *device)
2151 {
2152         struct snd_korg1212 *korg1212 = device->device_data;
2153         K1212_DEBUG_PRINTK("K1212_DEBUG: Freeing device\n");
2154         return snd_korg1212_free(korg1212);
2155 }
2156
2157 static int __devinit snd_korg1212_create(struct snd_card *card, struct pci_dev *pci,
2158                                          struct snd_korg1212 ** rchip)
2159
2160 {
2161         int err, rc;
2162         unsigned int i;
2163         unsigned ioport_size, iomem_size, iomem2_size;
2164         struct snd_korg1212 * korg1212;
2165         const struct firmware *dsp_code;
2166
2167         static struct snd_device_ops ops = {
2168                 .dev_free = snd_korg1212_dev_free,
2169         };
2170
2171         * rchip = NULL;
2172         if ((err = pci_enable_device(pci)) < 0)
2173                 return err;
2174
2175         korg1212 = kzalloc(sizeof(*korg1212), GFP_KERNEL);
2176         if (korg1212 == NULL) {
2177                 pci_disable_device(pci);
2178                 return -ENOMEM;
2179         }
2180
2181         korg1212->card = card;
2182         korg1212->pci = pci;
2183
2184         init_waitqueue_head(&korg1212->wait);
2185         spin_lock_init(&korg1212->lock);
2186         mutex_init(&korg1212->open_mutex);
2187         init_timer(&korg1212->timer);
2188         korg1212->timer.function = snd_korg1212_timer_func;
2189         korg1212->timer.data = (unsigned long)korg1212;
2190
2191         korg1212->irq = -1;
2192         korg1212->clkSource = K1212_CLKIDX_Local;
2193         korg1212->clkRate = 44100;
2194         korg1212->inIRQ = 0;
2195         korg1212->running = 0;
2196         korg1212->opencnt = 0;
2197         korg1212->playcnt = 0;
2198         korg1212->setcnt = 0;
2199         korg1212->totalerrorcnt = 0;
2200         korg1212->playback_pid = -1;
2201         korg1212->capture_pid = -1;
2202         snd_korg1212_setCardState(korg1212, K1212_STATE_UNINITIALIZED);
2203         korg1212->idleMonitorOn = 0;
2204         korg1212->clkSrcRate = K1212_CLKIDX_LocalAt44_1K;
2205         korg1212->leftADCInSens = k1212MaxADCSens;
2206         korg1212->rightADCInSens = k1212MaxADCSens;
2207
2208         for (i=0; i<kAudioChannels; i++)
2209                 korg1212->volumePhase[i] = 0;
2210
2211         if ((err = pci_request_regions(pci, "korg1212")) < 0) {
2212                 kfree(korg1212);
2213                 pci_disable_device(pci);
2214                 return err;
2215         }
2216
2217         korg1212->iomem = pci_resource_start(korg1212->pci, 0);
2218         korg1212->ioport = pci_resource_start(korg1212->pci, 1);
2219         korg1212->iomem2 = pci_resource_start(korg1212->pci, 2);
2220
2221         iomem_size = pci_resource_len(korg1212->pci, 0);
2222         ioport_size = pci_resource_len(korg1212->pci, 1);
2223         iomem2_size = pci_resource_len(korg1212->pci, 2);
2224
2225         K1212_DEBUG_PRINTK("K1212_DEBUG: resources:\n"
2226                    "    iomem = 0x%lx (%d)\n"
2227                    "    ioport  = 0x%lx (%d)\n"
2228                    "    iomem = 0x%lx (%d)\n"
2229                    "    [%s]\n",
2230                    korg1212->iomem, iomem_size,
2231                    korg1212->ioport, ioport_size,
2232                    korg1212->iomem2, iomem2_size,
2233                    stateName[korg1212->cardState]);
2234
2235         if ((korg1212->iobase = ioremap(korg1212->iomem, iomem_size)) == NULL) {
2236                 snd_printk(KERN_ERR "korg1212: unable to remap memory region 0x%lx-0x%lx\n", korg1212->iomem,
2237                            korg1212->iomem + iomem_size - 1);
2238                 snd_korg1212_free(korg1212);
2239                 return -EBUSY;
2240         }
2241
2242         err = request_irq(pci->irq, snd_korg1212_interrupt,
2243                           IRQF_SHARED,
2244                           "korg1212", korg1212);
2245
2246         if (err) {
2247                 snd_printk(KERN_ERR "korg1212: unable to grab IRQ %d\n", pci->irq);
2248                 snd_korg1212_free(korg1212);
2249                 return -EBUSY;
2250         }
2251
2252         korg1212->irq = pci->irq;
2253
2254         pci_set_master(korg1212->pci);
2255
2256         korg1212->statusRegPtr = (u32 __iomem *) (korg1212->iobase + STATUS_REG_OFFSET);
2257         korg1212->outDoorbellPtr = (u32 __iomem *) (korg1212->iobase + OUT_DOORBELL_OFFSET);
2258         korg1212->inDoorbellPtr = (u32 __iomem *) (korg1212->iobase + IN_DOORBELL_OFFSET);
2259         korg1212->mailbox0Ptr = (u32 __iomem *) (korg1212->iobase + MAILBOX0_OFFSET);
2260         korg1212->mailbox1Ptr = (u32 __iomem *) (korg1212->iobase + MAILBOX1_OFFSET);
2261         korg1212->mailbox2Ptr = (u32 __iomem *) (korg1212->iobase + MAILBOX2_OFFSET);
2262         korg1212->mailbox3Ptr = (u32 __iomem *) (korg1212->iobase + MAILBOX3_OFFSET);
2263         korg1212->controlRegPtr = (u32 __iomem *) (korg1212->iobase + PCI_CONTROL_OFFSET);
2264         korg1212->sensRegPtr = (u16 __iomem *) (korg1212->iobase + SENS_CONTROL_OFFSET);
2265         korg1212->idRegPtr = (u32 __iomem *) (korg1212->iobase + DEV_VEND_ID_OFFSET);
2266
2267         K1212_DEBUG_PRINTK("K1212_DEBUG: card registers:\n"
2268                    "    Status register = 0x%p\n"
2269                    "    OutDoorbell     = 0x%p\n"
2270                    "    InDoorbell      = 0x%p\n"
2271                    "    Mailbox0        = 0x%p\n"
2272                    "    Mailbox1        = 0x%p\n"
2273                    "    Mailbox2        = 0x%p\n"
2274                    "    Mailbox3        = 0x%p\n"
2275                    "    ControlReg      = 0x%p\n"
2276                    "    SensReg         = 0x%p\n"
2277                    "    IDReg           = 0x%p\n"
2278                    "    [%s]\n",
2279                    korg1212->statusRegPtr,
2280                    korg1212->outDoorbellPtr,
2281                    korg1212->inDoorbellPtr,
2282                    korg1212->mailbox0Ptr,
2283                    korg1212->mailbox1Ptr,
2284                    korg1212->mailbox2Ptr,
2285                    korg1212->mailbox3Ptr,
2286                    korg1212->controlRegPtr,
2287                    korg1212->sensRegPtr,
2288                    korg1212->idRegPtr,
2289                    stateName[korg1212->cardState]);
2290
2291         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
2292                                 sizeof(struct KorgSharedBuffer), &korg1212->dma_shared) < 0) {
2293                 snd_printk(KERN_ERR "korg1212: can not allocate shared buffer memory (%Zd bytes)\n", sizeof(struct KorgSharedBuffer));
2294                 snd_korg1212_free(korg1212);
2295                 return -ENOMEM;
2296         }
2297         korg1212->sharedBufferPtr = (struct KorgSharedBuffer *)korg1212->dma_shared.area;
2298         korg1212->sharedBufferPhy = korg1212->dma_shared.addr;
2299
2300         K1212_DEBUG_PRINTK("K1212_DEBUG: Shared Buffer Area = 0x%p (0x%08lx), %d bytes\n", korg1212->sharedBufferPtr, korg1212->sharedBufferPhy, sizeof(struct KorgSharedBuffer));
2301
2302 #ifndef K1212_LARGEALLOC
2303
2304         korg1212->DataBufsSize = sizeof(struct KorgAudioBuffer) * kNumBuffers;
2305
2306         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
2307                                 korg1212->DataBufsSize, &korg1212->dma_play) < 0) {
2308                 snd_printk(KERN_ERR "korg1212: can not allocate play data buffer memory (%d bytes)\n", korg1212->DataBufsSize);
2309                 snd_korg1212_free(korg1212);
2310                 return -ENOMEM;
2311         }
2312         korg1212->playDataBufsPtr = (struct KorgAudioBuffer *)korg1212->dma_play.area;
2313         korg1212->PlayDataPhy = korg1212->dma_play.addr;
2314
2315         K1212_DEBUG_PRINTK("K1212_DEBUG: Play Data Area = 0x%p (0x%08x), %d bytes\n",
2316                 korg1212->playDataBufsPtr, korg1212->PlayDataPhy, korg1212->DataBufsSize);
2317
2318         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
2319                                 korg1212->DataBufsSize, &korg1212->dma_rec) < 0) {
2320                 snd_printk(KERN_ERR "korg1212: can not allocate record data buffer memory (%d bytes)\n", korg1212->DataBufsSize);
2321                 snd_korg1212_free(korg1212);
2322                 return -ENOMEM;
2323         }
2324         korg1212->recordDataBufsPtr = (struct KorgAudioBuffer *)korg1212->dma_rec.area;
2325         korg1212->RecDataPhy = korg1212->dma_rec.addr;
2326
2327         K1212_DEBUG_PRINTK("K1212_DEBUG: Record Data Area = 0x%p (0x%08x), %d bytes\n",
2328                 korg1212->recordDataBufsPtr, korg1212->RecDataPhy, korg1212->DataBufsSize);
2329
2330 #else // K1212_LARGEALLOC
2331
2332         korg1212->recordDataBufsPtr = korg1212->sharedBufferPtr->recordDataBufs;
2333         korg1212->playDataBufsPtr = korg1212->sharedBufferPtr->playDataBufs;
2334         korg1212->PlayDataPhy = (u32) &((struct KorgSharedBuffer *) korg1212->sharedBufferPhy)->playDataBufs;
2335         korg1212->RecDataPhy  = (u32) &((struct KorgSharedBuffer *) korg1212->sharedBufferPhy)->recordDataBufs;
2336
2337 #endif // K1212_LARGEALLOC
2338
2339         korg1212->VolumeTablePhy = korg1212->sharedBufferPhy +
2340                 offsetof(struct KorgSharedBuffer, volumeData);
2341         korg1212->RoutingTablePhy = korg1212->sharedBufferPhy +
2342                 offsetof(struct KorgSharedBuffer, routeData);
2343         korg1212->AdatTimeCodePhy = korg1212->sharedBufferPhy +
2344                 offsetof(struct KorgSharedBuffer, AdatTimeCode);
2345
2346 #ifdef CONFIG_SND_KORG1212_FIRMWARE_IN_KERNEL
2347         dsp_code = &static_dsp_code;
2348 #else
2349         err = request_firmware(&dsp_code, "korg/k1212.dsp", &pci->dev);
2350         if (err < 0) {
2351                 release_firmware(dsp_code);
2352                 snd_printk(KERN_ERR "firmware not available\n");
2353                 snd_korg1212_free(korg1212);
2354                 return err;
2355         }
2356 #endif
2357
2358         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
2359                                 dsp_code->size, &korg1212->dma_dsp) < 0) {
2360                 snd_printk(KERN_ERR "korg1212: cannot allocate dsp code memory (%zd bytes)\n", dsp_code->size);
2361                 snd_korg1212_free(korg1212);
2362 #ifndef CONFIG_SND_KORG1212_FIRMWARE_IN_KERNEL
2363                 release_firmware(dsp_code);
2364 #endif
2365                 return -ENOMEM;
2366         }
2367
2368         K1212_DEBUG_PRINTK("K1212_DEBUG: DSP Code area = 0x%p (0x%08x) %d bytes [%s]\n",
2369                    korg1212->dma_dsp.area, korg1212->dma_dsp.addr, dsp_code->size,
2370                    stateName[korg1212->cardState]);
2371
2372         memcpy(korg1212->dma_dsp.area, dsp_code->data, dsp_code->size);
2373
2374 #ifndef CONFIG_SND_KORG1212_FIRMWARE_IN_KERNEL
2375         release_firmware(dsp_code);
2376 #endif
2377
2378         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_RebootCard, 0, 0, 0, 0);
2379
2380         if (rc)
2381                 K1212_DEBUG_PRINTK("K1212_DEBUG: Reboot Card - RC = %d [%s]\n", rc, stateName[korg1212->cardState]);
2382
2383         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, korg1212, &ops)) < 0) {
2384                 snd_korg1212_free(korg1212);
2385                 return err;
2386         }
2387
2388         snd_korg1212_EnableCardInterrupts(korg1212);
2389
2390         mdelay(CARD_BOOT_DELAY_IN_MS);
2391
2392         if (snd_korg1212_downloadDSPCode(korg1212))
2393                 return -EBUSY;
2394
2395         K1212_DEBUG_PRINTK("korg1212: dspMemPhy = %08x U[%08x], "
2396                "PlayDataPhy = %08x L[%08x]\n"
2397                "korg1212: RecDataPhy = %08x L[%08x], "
2398                "VolumeTablePhy = %08x L[%08x]\n"
2399                "korg1212: RoutingTablePhy = %08x L[%08x], "
2400                "AdatTimeCodePhy = %08x L[%08x]\n",
2401                (int)korg1212->dma_dsp.addr,    UpperWordSwap(korg1212->dma_dsp.addr),
2402                korg1212->PlayDataPhy,     LowerWordSwap(korg1212->PlayDataPhy),
2403                korg1212->RecDataPhy,      LowerWordSwap(korg1212->RecDataPhy),
2404                korg1212->VolumeTablePhy,  LowerWordSwap(korg1212->VolumeTablePhy),
2405                korg1212->RoutingTablePhy, LowerWordSwap(korg1212->RoutingTablePhy),
2406                korg1212->AdatTimeCodePhy, LowerWordSwap(korg1212->AdatTimeCodePhy));
2407
2408         if ((err = snd_pcm_new(korg1212->card, "korg1212", 0, 1, 1, &korg1212->pcm)) < 0)
2409                 return err;
2410
2411         korg1212->pcm->private_data = korg1212;
2412         korg1212->pcm->private_free = snd_korg1212_free_pcm;
2413         strcpy(korg1212->pcm->name, "korg1212");
2414
2415         snd_pcm_set_ops(korg1212->pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_korg1212_playback_ops);
2416
2417         snd_pcm_set_ops(korg1212->pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_korg1212_capture_ops);
2418
2419         korg1212->pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
2420
2421         for (i = 0; i < ARRAY_SIZE(snd_korg1212_controls); i++) {
2422                 err = snd_ctl_add(korg1212->card, snd_ctl_new1(&snd_korg1212_controls[i], korg1212));
2423                 if (err < 0)
2424                         return err;
2425         }
2426
2427         snd_korg1212_proc_init(korg1212);
2428
2429         snd_card_set_dev(card, &pci->dev);
2430
2431         * rchip = korg1212;
2432         return 0;
2433
2434 }
2435
2436 /*
2437  * Card initialisation
2438  */
2439
2440 static int __devinit
2441 snd_korg1212_probe(struct pci_dev *pci,
2442                 const struct pci_device_id *pci_id)
2443 {
2444         static int dev;
2445         struct snd_korg1212 *korg1212;
2446         struct snd_card *card;
2447         int err;
2448
2449         if (dev >= SNDRV_CARDS) {
2450                 return -ENODEV;
2451         }
2452         if (!enable[dev]) {
2453                 dev++;
2454                 return -ENOENT;
2455         }
2456         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
2457         if (card == NULL)
2458                 return -ENOMEM;
2459
2460         if ((err = snd_korg1212_create(card, pci, &korg1212)) < 0) {
2461                 snd_card_free(card);
2462                 return err;
2463         }
2464
2465         strcpy(card->driver, "korg1212");
2466         strcpy(card->shortname, "korg1212");
2467         sprintf(card->longname, "%s at 0x%lx, irq %d", card->shortname,
2468                 korg1212->iomem, korg1212->irq);
2469
2470         K1212_DEBUG_PRINTK("K1212_DEBUG: %s\n", card->longname);
2471
2472         if ((err = snd_card_register(card)) < 0) {
2473                 snd_card_free(card);
2474                 return err;
2475         }
2476         pci_set_drvdata(pci, card);
2477         dev++;
2478         return 0;
2479 }
2480
2481 static void __devexit snd_korg1212_remove(struct pci_dev *pci)
2482 {
2483         snd_card_free(pci_get_drvdata(pci));
2484         pci_set_drvdata(pci, NULL);
2485 }
2486
2487 static struct pci_driver driver = {
2488         .name = "korg1212",
2489         .id_table = snd_korg1212_ids,
2490         .probe = snd_korg1212_probe,
2491         .remove = __devexit_p(snd_korg1212_remove),
2492 };
2493
2494 static int __init alsa_card_korg1212_init(void)
2495 {
2496         return pci_register_driver(&driver);
2497 }
2498
2499 static void __exit alsa_card_korg1212_exit(void)
2500 {
2501         pci_unregister_driver(&driver);
2502 }
2503
2504 module_init(alsa_card_korg1212_init)
2505 module_exit(alsa_card_korg1212_exit)