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TOMOYO Linux Cross Reference
Linux/sound/pci/korg1212/korg1212.c

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  1 /*
  2  *   Driver for the Korg 1212 IO PCI card
  3  *
  4  *      Copyright (c) 2001 Haroldo Gamal <gamal@alternex.com.br>
  5  *
  6  *   This program is free software; you can redistribute it and/or modify
  7  *   it under the terms of the GNU General Public License as published by
  8  *   the Free Software Foundation; either version 2 of the License, or
  9  *   (at your option) any later version.
 10  *
 11  *   This program is distributed in the hope that it will be useful,
 12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 14  *   GNU General Public License for more details.
 15  *
 16  *   You should have received a copy of the GNU General Public License
 17  *   along with this program; if not, write to the Free Software
 18  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 19  *
 20  */
 21 
 22 #include <linux/delay.h>
 23 #include <linux/init.h>
 24 #include <linux/interrupt.h>
 25 #include <linux/pci.h>
 26 #include <linux/slab.h>
 27 #include <linux/wait.h>
 28 #include <linux/module.h>
 29 #include <linux/mutex.h>
 30 #include <linux/firmware.h>
 31 #include <linux/io.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 // ----------------------------------------------------------------------------
 41 // Debug Stuff
 42 // ----------------------------------------------------------------------------
 43 #define K1212_DEBUG_LEVEL               0
 44 #if K1212_DEBUG_LEVEL > 0
 45 #define K1212_DEBUG_PRINTK(fmt,args...) printk(KERN_DEBUG fmt,##args)
 46 #else
 47 #define K1212_DEBUG_PRINTK(fmt,...)
 48 #endif
 49 #if K1212_DEBUG_LEVEL > 1
 50 #define K1212_DEBUG_PRINTK_VERBOSE(fmt,args...) printk(KERN_DEBUG fmt,##args)
 51 #else
 52 #define K1212_DEBUG_PRINTK_VERBOSE(fmt,...)
 53 #endif
 54 
 55 // ----------------------------------------------------------------------------
 56 // Record/Play Buffer Allocation Method. If K1212_LARGEALLOC is defined all 
 57 // buffers are alocated as a large piece inside KorgSharedBuffer.
 58 // ----------------------------------------------------------------------------
 59 //#define K1212_LARGEALLOC              1
 60 
 61 // ----------------------------------------------------------------------------
 62 // Valid states of the Korg 1212 I/O card.
 63 // ----------------------------------------------------------------------------
 64 enum CardState {
 65    K1212_STATE_NONEXISTENT,             // there is no card here
 66    K1212_STATE_UNINITIALIZED,           // the card is awaiting DSP download
 67    K1212_STATE_DSP_IN_PROCESS,          // the card is currently downloading its DSP code
 68    K1212_STATE_DSP_COMPLETE,            // the card has finished the DSP download
 69    K1212_STATE_READY,                   // the card can be opened by an application.  Any application
 70                                         //    requests prior to this state should fail.  Only an open
 71                                         //    request can be made at this state.
 72    K1212_STATE_OPEN,                    // an application has opened the card
 73    K1212_STATE_SETUP,                   // the card has been setup for play
 74    K1212_STATE_PLAYING,                 // the card is playing
 75    K1212_STATE_MONITOR,                 // the card is in the monitor mode
 76    K1212_STATE_CALIBRATING,             // the card is currently calibrating
 77    K1212_STATE_ERRORSTOP,               // the card has stopped itself because of an error and we
 78                                         //    are in the process of cleaning things up.
 79    K1212_STATE_MAX_STATE                // state values of this and beyond are invalid
 80 };
 81 
 82 // ----------------------------------------------------------------------------
 83 // The following enumeration defines the constants written to the card's
 84 // host-to-card doorbell to initiate a command.
 85 // ----------------------------------------------------------------------------
 86 enum korg1212_dbcnst {
 87    K1212_DB_RequestForData        = 0,    // sent by the card to request a buffer fill.
 88    K1212_DB_TriggerPlay           = 1,    // starts playback/record on the card.
 89    K1212_DB_SelectPlayMode        = 2,    // select monitor, playback setup, or stop.
 90    K1212_DB_ConfigureBufferMemory = 3,    // tells card where the host audio buffers are.
 91    K1212_DB_RequestAdatTimecode   = 4,    // asks the card for the latest ADAT timecode value.
 92    K1212_DB_SetClockSourceRate    = 5,    // sets the clock source and rate for the card.
 93    K1212_DB_ConfigureMiscMemory   = 6,    // tells card where other buffers are.
 94    K1212_DB_TriggerFromAdat       = 7,    // tells card to trigger from Adat at a specific
 95                                           //    timecode value.
 96    K1212_DB_DMAERROR              = 0x80, // DMA Error - the PCI bus is congestioned.
 97    K1212_DB_CARDSTOPPED           = 0x81, // Card has stopped by user request.
 98    K1212_DB_RebootCard            = 0xA0, // instructs the card to reboot.
 99    K1212_DB_BootFromDSPPage4      = 0xA4, // instructs the card to boot from the DSP microcode
100                                           //    on page 4 (local page to card).
101    K1212_DB_DSPDownloadDone       = 0xAE, // sent by the card to indicate the download has
102                                           //    completed.
103    K1212_DB_StartDSPDownload      = 0xAF  // tells the card to download its DSP firmware.
104 };
105 
106 
107 // ----------------------------------------------------------------------------
108 // The following enumeration defines return codes 
109 // to the Korg 1212 I/O driver.
110 // ----------------------------------------------------------------------------
111 enum snd_korg1212rc {
112    K1212_CMDRET_Success         = 0,   // command was successfully placed
113    K1212_CMDRET_DIOCFailure,           // the DeviceIoControl call failed
114    K1212_CMDRET_PMFailure,             // the protected mode call failed
115    K1212_CMDRET_FailUnspecified,       // unspecified failure
116    K1212_CMDRET_FailBadState,          // the specified command can not be given in
117                                        //    the card's current state. (or the wave device's
118                                        //    state)
119    K1212_CMDRET_CardUninitialized,     // the card is uninitialized and cannot be used
120    K1212_CMDRET_BadIndex,              // an out of range card index was specified
121    K1212_CMDRET_BadHandle,             // an invalid card handle was specified
122    K1212_CMDRET_NoFillRoutine,         // a play request has been made before a fill routine set
123    K1212_CMDRET_FillRoutineInUse,      // can't set a new fill routine while one is in use
124    K1212_CMDRET_NoAckFromCard,         // the card never acknowledged a command
125    K1212_CMDRET_BadParams,             // bad parameters were provided by the caller
126 
127    K1212_CMDRET_BadDevice,             // the specified wave device was out of range
128    K1212_CMDRET_BadFormat              // the specified wave format is unsupported
129 };
130 
131 // ----------------------------------------------------------------------------
132 // The following enumeration defines the constants used to select the play
133 // mode for the card in the SelectPlayMode command.
134 // ----------------------------------------------------------------------------
135 enum PlayModeSelector {
136    K1212_MODE_SetupPlay  = 0x00000001,     // provides card with pre-play information
137    K1212_MODE_MonitorOn  = 0x00000002,     // tells card to turn on monitor mode
138    K1212_MODE_MonitorOff = 0x00000004,     // tells card to turn off monitor mode
139    K1212_MODE_StopPlay   = 0x00000008      // stops playback on the card
140 };
141 
142 // ----------------------------------------------------------------------------
143 // The following enumeration defines the constants used to select the monitor
144 // mode for the card in the SetMonitorMode command.
145 // ----------------------------------------------------------------------------
146 enum MonitorModeSelector {
147    K1212_MONMODE_Off  = 0,     // tells card to turn off monitor mode
148    K1212_MONMODE_On            // tells card to turn on monitor mode
149 };
150 
151 #define MAILBOX0_OFFSET      0x40       // location of mailbox 0 relative to base address
152 #define MAILBOX1_OFFSET      0x44       // location of mailbox 1 relative to base address
153 #define MAILBOX2_OFFSET      0x48       // location of mailbox 2 relative to base address
154 #define MAILBOX3_OFFSET      0x4c       // location of mailbox 3 relative to base address
155 #define OUT_DOORBELL_OFFSET  0x60       // location of PCI to local doorbell
156 #define IN_DOORBELL_OFFSET   0x64       // location of local to PCI doorbell
157 #define STATUS_REG_OFFSET    0x68       // location of interrupt control/status register
158 #define PCI_CONTROL_OFFSET   0x6c       // location of the EEPROM, PCI, User I/O, init control
159                                         //    register
160 #define SENS_CONTROL_OFFSET  0x6e       // location of the input sensitivity setting register.
161                                         //    this is the upper word of the PCI control reg.
162 #define DEV_VEND_ID_OFFSET   0x70       // location of the device and vendor ID register
163 
164 #define MAX_COMMAND_RETRIES  5         // maximum number of times the driver will attempt
165                                        //    to send a command before giving up.
166 #define COMMAND_ACK_MASK     0x8000    // the MSB is set in the command acknowledgment from
167                                         //    the card.
168 #define DOORBELL_VAL_MASK    0x00FF    // the doorbell value is one byte
169 
170 #define CARD_BOOT_DELAY_IN_MS  10
171 #define CARD_BOOT_TIMEOUT      10
172 #define DSP_BOOT_DELAY_IN_MS   200
173 
174 #define kNumBuffers             8
175 #define k1212MaxCards           4
176 #define k1212NumWaveDevices     6
177 #define k16BitChannels          10
178 #define k32BitChannels          2
179 #define kAudioChannels          (k16BitChannels + k32BitChannels)
180 #define kPlayBufferFrames       1024
181 
182 #define K1212_ANALOG_CHANNELS   2
183 #define K1212_SPDIF_CHANNELS    2
184 #define K1212_ADAT_CHANNELS     8
185 #define K1212_CHANNELS          (K1212_ADAT_CHANNELS + K1212_ANALOG_CHANNELS)
186 #define K1212_MIN_CHANNELS      1
187 #define K1212_MAX_CHANNELS      K1212_CHANNELS
188 #define K1212_FRAME_SIZE        (sizeof(struct KorgAudioFrame))
189 #define K1212_MAX_SAMPLES       (kPlayBufferFrames*kNumBuffers)
190 #define K1212_PERIODS           (kNumBuffers)
191 #define K1212_PERIOD_BYTES      (K1212_FRAME_SIZE*kPlayBufferFrames)
192 #define K1212_BUF_SIZE          (K1212_PERIOD_BYTES*kNumBuffers)
193 #define K1212_ANALOG_BUF_SIZE   (K1212_ANALOG_CHANNELS * 2 * kPlayBufferFrames * kNumBuffers)
194 #define K1212_SPDIF_BUF_SIZE    (K1212_SPDIF_CHANNELS * 3 * kPlayBufferFrames * kNumBuffers)
195 #define K1212_ADAT_BUF_SIZE     (K1212_ADAT_CHANNELS * 2 * kPlayBufferFrames * kNumBuffers)
196 #define K1212_MAX_BUF_SIZE      (K1212_ANALOG_BUF_SIZE + K1212_ADAT_BUF_SIZE)
197 
198 #define k1212MinADCSens     0x00
199 #define k1212MaxADCSens     0x7f
200 #define k1212MaxVolume      0x7fff
201 #define k1212MaxWaveVolume  0xffff
202 #define k1212MinVolume      0x0000
203 #define k1212MaxVolInverted 0x8000
204 
205 // -----------------------------------------------------------------
206 // the following bits are used for controlling interrupts in the
207 // interrupt control/status reg
208 // -----------------------------------------------------------------
209 #define  PCI_INT_ENABLE_BIT               0x00000100
210 #define  PCI_DOORBELL_INT_ENABLE_BIT      0x00000200
211 #define  LOCAL_INT_ENABLE_BIT             0x00010000
212 #define  LOCAL_DOORBELL_INT_ENABLE_BIT    0x00020000
213 #define  LOCAL_DMA1_INT_ENABLE_BIT        0x00080000
214 
215 // -----------------------------------------------------------------
216 // the following bits are defined for the PCI command register
217 // -----------------------------------------------------------------
218 #define  PCI_CMD_MEM_SPACE_ENABLE_BIT     0x0002
219 #define  PCI_CMD_IO_SPACE_ENABLE_BIT      0x0001
220 #define  PCI_CMD_BUS_MASTER_ENABLE_BIT    0x0004
221 
222 // -----------------------------------------------------------------
223 // the following bits are defined for the PCI status register
224 // -----------------------------------------------------------------
225 #define  PCI_STAT_PARITY_ERROR_BIT        0x8000
226 #define  PCI_STAT_SYSTEM_ERROR_BIT        0x4000
227 #define  PCI_STAT_MASTER_ABORT_RCVD_BIT   0x2000
228 #define  PCI_STAT_TARGET_ABORT_RCVD_BIT   0x1000
229 #define  PCI_STAT_TARGET_ABORT_SENT_BIT   0x0800
230 
231 // ------------------------------------------------------------------------
232 // the following constants are used in setting the 1212 I/O card's input
233 // sensitivity.
234 // ------------------------------------------------------------------------
235 #define  SET_SENS_LOCALINIT_BITPOS        15
236 #define  SET_SENS_DATA_BITPOS             10
237 #define  SET_SENS_CLOCK_BITPOS            8
238 #define  SET_SENS_LOADSHIFT_BITPOS        0
239 
240 #define  SET_SENS_LEFTCHANID              0x00
241 #define  SET_SENS_RIGHTCHANID             0x01
242 
243 #define  K1212SENSUPDATE_DELAY_IN_MS      50
244 
245 // --------------------------------------------------------------------------
246 // WaitRTCTicks
247 //
248 //    This function waits the specified number of real time clock ticks.
249 //    According to the DDK, each tick is ~0.8 microseconds.
250 //    The defines following the function declaration can be used for the
251 //    numTicksToWait parameter.
252 // --------------------------------------------------------------------------
253 #define ONE_RTC_TICK         1
254 #define SENSCLKPULSE_WIDTH   4
255 #define LOADSHIFT_DELAY      4
256 #define INTERCOMMAND_DELAY  40
257 #define STOPCARD_DELAY      300        // max # RTC ticks for the card to stop once we write
258                                        //    the command register.  (could be up to 180 us)
259 #define COMMAND_ACK_DELAY   13         // number of RTC ticks to wait for an acknowledgement
260                                        //    from the card after sending a command.
261 
262 enum ClockSourceIndex {
263    K1212_CLKIDX_AdatAt44_1K = 0,    // selects source as ADAT at 44.1 kHz
264    K1212_CLKIDX_AdatAt48K,          // selects source as ADAT at 48 kHz
265    K1212_CLKIDX_WordAt44_1K,        // selects source as S/PDIF at 44.1 kHz
266    K1212_CLKIDX_WordAt48K,          // selects source as S/PDIF at 48 kHz
267    K1212_CLKIDX_LocalAt44_1K,       // selects source as local clock at 44.1 kHz
268    K1212_CLKIDX_LocalAt48K,         // selects source as local clock at 48 kHz
269    K1212_CLKIDX_Invalid             // used to check validity of the index
270 };
271 
272 enum ClockSourceType {
273    K1212_CLKIDX_Adat = 0,    // selects source as ADAT
274    K1212_CLKIDX_Word,        // selects source as S/PDIF
275    K1212_CLKIDX_Local        // selects source as local clock
276 };
277 
278 struct KorgAudioFrame {
279         u16 frameData16[k16BitChannels]; /* channels 0-9 use 16 bit samples */
280         u32 frameData32[k32BitChannels]; /* channels 10-11 use 32 bits - only 20 are sent across S/PDIF */
281         u32 timeCodeVal; /* holds the ADAT timecode value */
282 };
283 
284 struct KorgAudioBuffer {
285         struct KorgAudioFrame  bufferData[kPlayBufferFrames];     /* buffer definition */
286 };
287 
288 struct KorgSharedBuffer {
289 #ifdef K1212_LARGEALLOC
290    struct KorgAudioBuffer   playDataBufs[kNumBuffers];
291    struct KorgAudioBuffer   recordDataBufs[kNumBuffers];
292 #endif
293    short             volumeData[kAudioChannels];
294    u32               cardCommand;
295    u16               routeData [kAudioChannels];
296    u32               AdatTimeCode;                 // ADAT timecode value
297 };
298 
299 struct SensBits {
300    union {
301       struct {
302          unsigned int leftChanVal:8;
303          unsigned int leftChanId:8;
304       } v;
305       u16  leftSensBits;
306    } l;
307    union {
308       struct {
309          unsigned int rightChanVal:8;
310          unsigned int rightChanId:8;
311       } v;
312       u16  rightSensBits;
313    } r;
314 };
315 
316 struct snd_korg1212 {
317         struct snd_card *card;
318         struct pci_dev *pci;
319         struct snd_pcm *pcm;
320         int irq;
321 
322         spinlock_t    lock;
323         struct mutex open_mutex;
324 
325         struct timer_list timer;        /* timer callback for checking ack of stop request */
326         int stop_pending_cnt;           /* counter for stop pending check */
327 
328         wait_queue_head_t wait;
329 
330         unsigned long iomem;
331         unsigned long ioport;
332         unsigned long iomem2;
333         unsigned long irqcount;
334         unsigned long inIRQ;
335         void __iomem *iobase;
336 
337         struct snd_dma_buffer dma_dsp;
338         struct snd_dma_buffer dma_play;
339         struct snd_dma_buffer dma_rec;
340         struct snd_dma_buffer dma_shared;
341 
342         u32 DataBufsSize;
343 
344         struct KorgAudioBuffer  * playDataBufsPtr;
345         struct KorgAudioBuffer  * recordDataBufsPtr;
346 
347         struct KorgSharedBuffer * sharedBufferPtr;
348 
349         u32 RecDataPhy;
350         u32 PlayDataPhy;
351         unsigned long sharedBufferPhy;
352         u32 VolumeTablePhy;
353         u32 RoutingTablePhy;
354         u32 AdatTimeCodePhy;
355 
356         u32 __iomem * statusRegPtr;          // address of the interrupt status/control register
357         u32 __iomem * outDoorbellPtr;        // address of the host->card doorbell register
358         u32 __iomem * inDoorbellPtr;         // address of the card->host doorbell register
359         u32 __iomem * mailbox0Ptr;           // address of mailbox 0 on the card
360         u32 __iomem * mailbox1Ptr;           // address of mailbox 1 on the card
361         u32 __iomem * mailbox2Ptr;           // address of mailbox 2 on the card
362         u32 __iomem * mailbox3Ptr;           // address of mailbox 3 on the card
363         u32 __iomem * controlRegPtr;         // address of the EEPROM, PCI, I/O, Init ctrl reg
364         u16 __iomem * sensRegPtr;            // address of the sensitivity setting register
365         u32 __iomem * idRegPtr;              // address of the device and vendor ID registers
366 
367         size_t periodsize;
368         int channels;
369         int currentBuffer;
370 
371         struct snd_pcm_substream *playback_substream;
372         struct snd_pcm_substream *capture_substream;
373 
374         pid_t capture_pid;
375         pid_t playback_pid;
376 
377         enum CardState cardState;
378         int running;
379         int idleMonitorOn;           // indicates whether the card is in idle monitor mode.
380         u32 cmdRetryCount;           // tracks how many times we have retried sending to the card.
381 
382         enum ClockSourceIndex clkSrcRate; // sample rate and clock source
383 
384         enum ClockSourceType clkSource;   // clock source
385         int clkRate;                 // clock rate
386 
387         int volumePhase[kAudioChannels];
388 
389         u16 leftADCInSens;           // ADC left channel input sensitivity
390         u16 rightADCInSens;          // ADC right channel input sensitivity
391 
392         int opencnt;                 // Open/Close count
393         int setcnt;                  // SetupForPlay count
394         int playcnt;                 // TriggerPlay count
395         int errorcnt;                // Error Count
396         unsigned long totalerrorcnt; // Total Error Count
397 
398         int dsp_is_loaded;
399         int dsp_stop_is_processed;
400 
401 };
402 
403 MODULE_DESCRIPTION("korg1212");
404 MODULE_LICENSE("GPL");
405 MODULE_SUPPORTED_DEVICE("{{KORG,korg1212}}");
406 MODULE_FIRMWARE("korg/k1212.dsp");
407 
408 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;     /* Index 0-MAX */
409 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;          /* ID for this card */
410 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
411 
412 module_param_array(index, int, NULL, 0444);
413 MODULE_PARM_DESC(index, "Index value for Korg 1212 soundcard.");
414 module_param_array(id, charp, NULL, 0444);
415 MODULE_PARM_DESC(id, "ID string for Korg 1212 soundcard.");
416 module_param_array(enable, bool, NULL, 0444);
417 MODULE_PARM_DESC(enable, "Enable Korg 1212 soundcard.");
418 MODULE_AUTHOR("Haroldo Gamal <gamal@alternex.com.br>");
419 
420 static const struct pci_device_id snd_korg1212_ids[] = {
421         {
422                 .vendor    = 0x10b5,
423                 .device    = 0x906d,
424                 .subvendor = PCI_ANY_ID,
425                 .subdevice = PCI_ANY_ID,
426         },
427         { 0, },
428 };
429 
430 MODULE_DEVICE_TABLE(pci, snd_korg1212_ids);
431 
432 static char *stateName[] = {
433         "Non-existent",
434         "Uninitialized",
435         "DSP download in process",
436         "DSP download complete",
437         "Ready",
438         "Open",
439         "Setup for play",
440         "Playing",
441         "Monitor mode on",
442         "Calibrating",
443         "Invalid"
444 };
445 
446 static const char * const clockSourceTypeName[] = { "ADAT", "S/PDIF", "local" };
447 
448 static const char * const clockSourceName[] = {
449         "ADAT at 44.1 kHz",
450         "ADAT at 48 kHz",
451         "S/PDIF at 44.1 kHz",
452         "S/PDIF at 48 kHz",
453         "local clock at 44.1 kHz",
454         "local clock at 48 kHz"
455 };
456 
457 static const char * const channelName[] = {
458         "ADAT-1",
459         "ADAT-2",
460         "ADAT-3",
461         "ADAT-4",
462         "ADAT-5",
463         "ADAT-6",
464         "ADAT-7",
465         "ADAT-8",
466         "Analog-L",
467         "Analog-R",
468         "SPDIF-L",
469         "SPDIF-R",
470 };
471 
472 static u16 ClockSourceSelector[] = {
473         0x8000,   // selects source as ADAT at 44.1 kHz
474         0x0000,   // selects source as ADAT at 48 kHz
475         0x8001,   // selects source as S/PDIF at 44.1 kHz
476         0x0001,   // selects source as S/PDIF at 48 kHz
477         0x8002,   // selects source as local clock at 44.1 kHz
478         0x0002    // selects source as local clock at 48 kHz
479 };
480 
481 union swap_u32 { unsigned char c[4]; u32 i; };
482 
483 #ifdef SNDRV_BIG_ENDIAN
484 static u32 LowerWordSwap(u32 swappee)
485 #else
486 static u32 UpperWordSwap(u32 swappee)
487 #endif
488 {
489    union swap_u32 retVal, swapper;
490 
491    swapper.i = swappee;
492    retVal.c[2] = swapper.c[3];
493    retVal.c[3] = swapper.c[2];
494    retVal.c[1] = swapper.c[1];
495    retVal.c[0] = swapper.c[0];
496 
497    return retVal.i;
498 }
499 
500 #ifdef SNDRV_BIG_ENDIAN
501 static u32 UpperWordSwap(u32 swappee)
502 #else
503 static u32 LowerWordSwap(u32 swappee)
504 #endif
505 {
506    union swap_u32 retVal, swapper;
507 
508    swapper.i = swappee;
509    retVal.c[2] = swapper.c[2];
510    retVal.c[3] = swapper.c[3];
511    retVal.c[1] = swapper.c[0];
512    retVal.c[0] = swapper.c[1];
513 
514    return retVal.i;
515 }
516 
517 #define SetBitInWord(theWord,bitPosition)       (*theWord) |= (0x0001 << bitPosition)
518 #define SetBitInDWord(theWord,bitPosition)      (*theWord) |= (0x00000001 << bitPosition)
519 #define ClearBitInWord(theWord,bitPosition)     (*theWord) &= ~(0x0001 << bitPosition)
520 #define ClearBitInDWord(theWord,bitPosition)    (*theWord) &= ~(0x00000001 << bitPosition)
521 
522 static int snd_korg1212_Send1212Command(struct snd_korg1212 *korg1212,
523                                         enum korg1212_dbcnst doorbellVal,
524                                         u32 mailBox0Val, u32 mailBox1Val,
525                                         u32 mailBox2Val, u32 mailBox3Val)
526 {
527         u32 retryCount;
528         u16 mailBox3Lo;
529         int rc = K1212_CMDRET_Success;
530 
531         if (!korg1212->outDoorbellPtr) {
532                 K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: CardUninitialized\n");
533                 return K1212_CMDRET_CardUninitialized;
534         }
535 
536         K1212_DEBUG_PRINTK("K1212_DEBUG: Card <- 0x%08x 0x%08x [%s]\n",
537                            doorbellVal, mailBox0Val, stateName[korg1212->cardState]);
538         for (retryCount = 0; retryCount < MAX_COMMAND_RETRIES; retryCount++) {
539                 writel(mailBox3Val, korg1212->mailbox3Ptr);
540                 writel(mailBox2Val, korg1212->mailbox2Ptr);
541                 writel(mailBox1Val, korg1212->mailbox1Ptr);
542                 writel(mailBox0Val, korg1212->mailbox0Ptr);
543                 writel(doorbellVal, korg1212->outDoorbellPtr);  // interrupt the card
544 
545                 // --------------------------------------------------------------
546                 // the reboot command will not give an acknowledgement.
547                 // --------------------------------------------------------------
548                 if ( doorbellVal == K1212_DB_RebootCard ||
549                         doorbellVal == K1212_DB_BootFromDSPPage4 ||
550                         doorbellVal == K1212_DB_StartDSPDownload ) {
551                         rc = K1212_CMDRET_Success;
552                         break;
553                 }
554 
555                 // --------------------------------------------------------------
556                 // See if the card acknowledged the command.  Wait a bit, then
557                 // read in the low word of mailbox3.  If the MSB is set and the
558                 // low byte is equal to the doorbell value, then it ack'd.
559                 // --------------------------------------------------------------
560                 udelay(COMMAND_ACK_DELAY);
561                 mailBox3Lo = readl(korg1212->mailbox3Ptr);
562                 if (mailBox3Lo & COMMAND_ACK_MASK) {
563                         if ((mailBox3Lo & DOORBELL_VAL_MASK) == (doorbellVal & DOORBELL_VAL_MASK)) {
564                                 K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: Card <- Success\n");
565                                 rc = K1212_CMDRET_Success;
566                                 break;
567                         }
568                 }
569         }
570         korg1212->cmdRetryCount += retryCount;
571 
572         if (retryCount >= MAX_COMMAND_RETRIES) {
573                 K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: Card <- NoAckFromCard\n");
574                 rc = K1212_CMDRET_NoAckFromCard;
575         }
576 
577         return rc;
578 }
579 
580 /* spinlock already held */
581 static void snd_korg1212_SendStop(struct snd_korg1212 *korg1212)
582 {
583         if (! korg1212->stop_pending_cnt) {
584                 korg1212->sharedBufferPtr->cardCommand = 0xffffffff;
585                 /* program the timer */
586                 korg1212->stop_pending_cnt = HZ;
587                 mod_timer(&korg1212->timer, jiffies + 1);
588         }
589 }
590 
591 static void snd_korg1212_SendStopAndWait(struct snd_korg1212 *korg1212)
592 {
593         unsigned long flags;
594         spin_lock_irqsave(&korg1212->lock, flags);
595         korg1212->dsp_stop_is_processed = 0;
596         snd_korg1212_SendStop(korg1212);
597         spin_unlock_irqrestore(&korg1212->lock, flags);
598         wait_event_timeout(korg1212->wait, korg1212->dsp_stop_is_processed, (HZ * 3) / 2);
599 }
600 
601 /* timer callback for checking the ack of stop request */
602 static void snd_korg1212_timer_func(struct timer_list *t)
603 {
604         struct snd_korg1212 *korg1212 = from_timer(korg1212, t, timer);
605         unsigned long flags;
606         
607         spin_lock_irqsave(&korg1212->lock, flags);
608         if (korg1212->sharedBufferPtr->cardCommand == 0) {
609                 /* ack'ed */
610                 korg1212->stop_pending_cnt = 0;
611                 korg1212->dsp_stop_is_processed = 1;
612                 wake_up(&korg1212->wait);
613                 K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: Stop ack'ed [%s]\n",
614                                            stateName[korg1212->cardState]);
615         } else {
616                 if (--korg1212->stop_pending_cnt > 0) {
617                         /* reprogram timer */
618                         mod_timer(&korg1212->timer, jiffies + 1);
619                 } else {
620                         snd_printd("korg1212_timer_func timeout\n");
621                         korg1212->sharedBufferPtr->cardCommand = 0;
622                         korg1212->dsp_stop_is_processed = 1;
623                         wake_up(&korg1212->wait);
624                         K1212_DEBUG_PRINTK("K1212_DEBUG: Stop timeout [%s]\n",
625                                            stateName[korg1212->cardState]);
626                 }
627         }
628         spin_unlock_irqrestore(&korg1212->lock, flags);
629 }
630 
631 static int snd_korg1212_TurnOnIdleMonitor(struct snd_korg1212 *korg1212)
632 {
633         unsigned long flags;
634         int rc;
635 
636         udelay(INTERCOMMAND_DELAY);
637         spin_lock_irqsave(&korg1212->lock, flags);
638         korg1212->idleMonitorOn = 1;
639         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SelectPlayMode,
640                                           K1212_MODE_MonitorOn, 0, 0, 0);
641         spin_unlock_irqrestore(&korg1212->lock, flags);
642         return rc;
643 }
644 
645 static void snd_korg1212_TurnOffIdleMonitor(struct snd_korg1212 *korg1212)
646 {
647         if (korg1212->idleMonitorOn) {
648                 snd_korg1212_SendStopAndWait(korg1212);
649                 korg1212->idleMonitorOn = 0;
650         }
651 }
652 
653 static inline void snd_korg1212_setCardState(struct snd_korg1212 * korg1212, enum CardState csState)
654 {
655         korg1212->cardState = csState;
656 }
657 
658 static int snd_korg1212_OpenCard(struct snd_korg1212 * korg1212)
659 {
660         K1212_DEBUG_PRINTK("K1212_DEBUG: OpenCard [%s] %d\n",
661                            stateName[korg1212->cardState], korg1212->opencnt);
662         mutex_lock(&korg1212->open_mutex);
663         if (korg1212->opencnt++ == 0) {
664                 snd_korg1212_TurnOffIdleMonitor(korg1212);
665                 snd_korg1212_setCardState(korg1212, K1212_STATE_OPEN);
666         }
667 
668         mutex_unlock(&korg1212->open_mutex);
669         return 1;
670 }
671 
672 static int snd_korg1212_CloseCard(struct snd_korg1212 * korg1212)
673 {
674         K1212_DEBUG_PRINTK("K1212_DEBUG: CloseCard [%s] %d\n",
675                            stateName[korg1212->cardState], korg1212->opencnt);
676 
677         mutex_lock(&korg1212->open_mutex);
678         if (--(korg1212->opencnt)) {
679                 mutex_unlock(&korg1212->open_mutex);
680                 return 0;
681         }
682 
683         if (korg1212->cardState == K1212_STATE_SETUP) {
684                 int rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SelectPlayMode,
685                                 K1212_MODE_StopPlay, 0, 0, 0);
686                 if (rc)
687                         K1212_DEBUG_PRINTK("K1212_DEBUG: CloseCard - RC = %d [%s]\n",
688                                            rc, stateName[korg1212->cardState]);
689                 if (rc != K1212_CMDRET_Success) {
690                         mutex_unlock(&korg1212->open_mutex);
691                         return 0;
692                 }
693         } else if (korg1212->cardState > K1212_STATE_SETUP) {
694                 snd_korg1212_SendStopAndWait(korg1212);
695         }
696 
697         if (korg1212->cardState > K1212_STATE_READY) {
698                 snd_korg1212_TurnOnIdleMonitor(korg1212);
699                 snd_korg1212_setCardState(korg1212, K1212_STATE_READY);
700         }
701 
702         mutex_unlock(&korg1212->open_mutex);
703         return 0;
704 }
705 
706 /* spinlock already held */
707 static int snd_korg1212_SetupForPlay(struct snd_korg1212 * korg1212)
708 {
709         int rc;
710 
711         K1212_DEBUG_PRINTK("K1212_DEBUG: SetupForPlay [%s] %d\n",
712                            stateName[korg1212->cardState], korg1212->setcnt);
713 
714         if (korg1212->setcnt++)
715                 return 0;
716 
717         snd_korg1212_setCardState(korg1212, K1212_STATE_SETUP);
718         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SelectPlayMode,
719                                         K1212_MODE_SetupPlay, 0, 0, 0);
720         if (rc)
721                 K1212_DEBUG_PRINTK("K1212_DEBUG: SetupForPlay - RC = %d [%s]\n",
722                                    rc, stateName[korg1212->cardState]);
723         if (rc != K1212_CMDRET_Success) {
724                 return 1;
725         }
726         return 0;
727 }
728 
729 /* spinlock already held */
730 static int snd_korg1212_TriggerPlay(struct snd_korg1212 * korg1212)
731 {
732         int rc;
733 
734         K1212_DEBUG_PRINTK("K1212_DEBUG: TriggerPlay [%s] %d\n",
735                            stateName[korg1212->cardState], korg1212->playcnt);
736 
737         if (korg1212->playcnt++)
738                 return 0;
739 
740         snd_korg1212_setCardState(korg1212, K1212_STATE_PLAYING);
741         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_TriggerPlay, 0, 0, 0, 0);
742         if (rc)
743                 K1212_DEBUG_PRINTK("K1212_DEBUG: TriggerPlay - RC = %d [%s]\n",
744                                    rc, stateName[korg1212->cardState]);
745         if (rc != K1212_CMDRET_Success) {
746                 return 1;
747         }
748         return 0;
749 }
750 
751 /* spinlock already held */
752 static int snd_korg1212_StopPlay(struct snd_korg1212 * korg1212)
753 {
754         K1212_DEBUG_PRINTK("K1212_DEBUG: StopPlay [%s] %d\n",
755                            stateName[korg1212->cardState], korg1212->playcnt);
756 
757         if (--(korg1212->playcnt)) 
758                 return 0;
759 
760         korg1212->setcnt = 0;
761 
762         if (korg1212->cardState != K1212_STATE_ERRORSTOP)
763                 snd_korg1212_SendStop(korg1212);
764 
765         snd_korg1212_setCardState(korg1212, K1212_STATE_OPEN);
766         return 0;
767 }
768 
769 static void snd_korg1212_EnableCardInterrupts(struct snd_korg1212 * korg1212)
770 {
771         writel(PCI_INT_ENABLE_BIT            |
772                PCI_DOORBELL_INT_ENABLE_BIT   |
773                LOCAL_INT_ENABLE_BIT          |
774                LOCAL_DOORBELL_INT_ENABLE_BIT |
775                LOCAL_DMA1_INT_ENABLE_BIT,
776                korg1212->statusRegPtr);
777 }
778 
779 #if 0 /* not used */
780 
781 static int snd_korg1212_SetMonitorMode(struct snd_korg1212 *korg1212,
782                                        enum MonitorModeSelector mode)
783 {
784         K1212_DEBUG_PRINTK("K1212_DEBUG: SetMonitorMode [%s]\n",
785                            stateName[korg1212->cardState]);
786 
787         switch (mode) {
788         case K1212_MONMODE_Off:
789                 if (korg1212->cardState != K1212_STATE_MONITOR)
790                         return 0;
791                 else {
792                         snd_korg1212_SendStopAndWait(korg1212);
793                         snd_korg1212_setCardState(korg1212, K1212_STATE_OPEN);
794                 }
795                 break;
796 
797         case K1212_MONMODE_On:
798                 if (korg1212->cardState != K1212_STATE_OPEN)
799                         return 0;
800                 else {
801                         int rc;
802                         snd_korg1212_setCardState(korg1212, K1212_STATE_MONITOR);
803                         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SelectPlayMode,
804                                                           K1212_MODE_MonitorOn, 0, 0, 0);
805                         if (rc != K1212_CMDRET_Success)
806                                 return 0;
807                 }
808                 break;
809 
810         default:
811                 return 0;
812         }
813 
814         return 1;
815 }
816 
817 #endif /* not used */
818 
819 static inline int snd_korg1212_use_is_exclusive(struct snd_korg1212 *korg1212)
820 {
821         if (korg1212->playback_pid != korg1212->capture_pid &&
822             korg1212->playback_pid >= 0 && korg1212->capture_pid >= 0)
823                 return 0;
824 
825         return 1;
826 }
827 
828 static int snd_korg1212_SetRate(struct snd_korg1212 *korg1212, int rate)
829 {
830         static enum ClockSourceIndex s44[] = {
831                 K1212_CLKIDX_AdatAt44_1K,
832                 K1212_CLKIDX_WordAt44_1K,
833                 K1212_CLKIDX_LocalAt44_1K
834         };
835         static enum ClockSourceIndex s48[] = {
836                 K1212_CLKIDX_AdatAt48K,
837                 K1212_CLKIDX_WordAt48K,
838                 K1212_CLKIDX_LocalAt48K
839         };
840         int parm, rc;
841 
842         if (!snd_korg1212_use_is_exclusive (korg1212))
843                 return -EBUSY;
844 
845         switch (rate) {
846         case 44100:
847                 parm = s44[korg1212->clkSource];
848                 break;
849 
850         case 48000:
851                 parm = s48[korg1212->clkSource];
852                 break;
853 
854         default:
855                 return -EINVAL;
856         }
857 
858         korg1212->clkSrcRate = parm;
859         korg1212->clkRate = rate;
860 
861         udelay(INTERCOMMAND_DELAY);
862         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SetClockSourceRate,
863                                           ClockSourceSelector[korg1212->clkSrcRate],
864                                           0, 0, 0);
865         if (rc)
866                 K1212_DEBUG_PRINTK("K1212_DEBUG: Set Clock Source Selector - RC = %d [%s]\n",
867                                    rc, stateName[korg1212->cardState]);
868 
869         return 0;
870 }
871 
872 static int snd_korg1212_SetClockSource(struct snd_korg1212 *korg1212, int source)
873 {
874 
875         if (source < 0 || source > 2)
876                 return -EINVAL;
877 
878         korg1212->clkSource = source;
879 
880         snd_korg1212_SetRate(korg1212, korg1212->clkRate);
881 
882         return 0;
883 }
884 
885 static void snd_korg1212_DisableCardInterrupts(struct snd_korg1212 *korg1212)
886 {
887         writel(0, korg1212->statusRegPtr);
888 }
889 
890 static int snd_korg1212_WriteADCSensitivity(struct snd_korg1212 *korg1212)
891 {
892         struct SensBits  sensVals;
893         int       bitPosition;
894         int       channel;
895         int       clkIs48K;
896         int       monModeSet;
897         u16       controlValue;    // this keeps the current value to be written to
898                                    //  the card's eeprom control register.
899         u16       count;
900         unsigned long flags;
901 
902         K1212_DEBUG_PRINTK("K1212_DEBUG: WriteADCSensivity [%s]\n",
903                            stateName[korg1212->cardState]);
904 
905         // ----------------------------------------------------------------------------
906         // initialize things.  The local init bit is always set when writing to the
907         // card's control register.
908         // ----------------------------------------------------------------------------
909         controlValue = 0;
910         SetBitInWord(&controlValue, SET_SENS_LOCALINIT_BITPOS);    // init the control value
911 
912         // ----------------------------------------------------------------------------
913         // make sure the card is not in monitor mode when we do this update.
914         // ----------------------------------------------------------------------------
915         if (korg1212->cardState == K1212_STATE_MONITOR || korg1212->idleMonitorOn) {
916                 monModeSet = 1;
917                 snd_korg1212_SendStopAndWait(korg1212);
918         } else
919                 monModeSet = 0;
920 
921         spin_lock_irqsave(&korg1212->lock, flags);
922 
923         // ----------------------------------------------------------------------------
924         // we are about to send new values to the card, so clear the new values queued
925         // flag.  Also, clear out mailbox 3, so we don't lockup.
926         // ----------------------------------------------------------------------------
927         writel(0, korg1212->mailbox3Ptr);
928         udelay(LOADSHIFT_DELAY);
929 
930         // ----------------------------------------------------------------------------
931         // determine whether we are running a 48K or 44.1K clock.  This info is used
932         // later when setting the SPDIF FF after the volume has been shifted in.
933         // ----------------------------------------------------------------------------
934         switch (korg1212->clkSrcRate) {
935                 case K1212_CLKIDX_AdatAt44_1K:
936                 case K1212_CLKIDX_WordAt44_1K:
937                 case K1212_CLKIDX_LocalAt44_1K:
938                         clkIs48K = 0;
939                         break;
940 
941                 case K1212_CLKIDX_WordAt48K:
942                 case K1212_CLKIDX_AdatAt48K:
943                 case K1212_CLKIDX_LocalAt48K:
944                 default:
945                         clkIs48K = 1;
946                         break;
947         }
948 
949         // ----------------------------------------------------------------------------
950         // start the update.  Setup the bit structure and then shift the bits.
951         // ----------------------------------------------------------------------------
952         sensVals.l.v.leftChanId   = SET_SENS_LEFTCHANID;
953         sensVals.r.v.rightChanId  = SET_SENS_RIGHTCHANID;
954         sensVals.l.v.leftChanVal  = korg1212->leftADCInSens;
955         sensVals.r.v.rightChanVal = korg1212->rightADCInSens;
956 
957         // ----------------------------------------------------------------------------
958         // now start shifting the bits in.  Start with the left channel then the right.
959         // ----------------------------------------------------------------------------
960         for (channel = 0; channel < 2; channel++) {
961 
962                 // ----------------------------------------------------------------------------
963                 // Bring the load/shift line low, then wait - the spec says >150ns from load/
964                 // shift low to the first rising edge of the clock.
965                 // ----------------------------------------------------------------------------
966                 ClearBitInWord(&controlValue, SET_SENS_LOADSHIFT_BITPOS);
967                 ClearBitInWord(&controlValue, SET_SENS_DATA_BITPOS);
968                 writew(controlValue, korg1212->sensRegPtr);                          // load/shift goes low
969                 udelay(LOADSHIFT_DELAY);
970 
971                 for (bitPosition = 15; bitPosition >= 0; bitPosition--) {       // for all the bits
972                         if (channel == 0) {
973                                 if (sensVals.l.leftSensBits & (0x0001 << bitPosition))
974                                         SetBitInWord(&controlValue, SET_SENS_DATA_BITPOS);     // data bit set high
975                                 else
976                                         ClearBitInWord(&controlValue, SET_SENS_DATA_BITPOS);   // data bit set low
977                         } else {
978                                 if (sensVals.r.rightSensBits & (0x0001 << bitPosition))
979                                         SetBitInWord(&controlValue, SET_SENS_DATA_BITPOS);     // data bit set high
980                                 else
981                                         ClearBitInWord(&controlValue, SET_SENS_DATA_BITPOS);   // data bit set low
982                         }
983 
984                         ClearBitInWord(&controlValue, SET_SENS_CLOCK_BITPOS);
985                         writew(controlValue, korg1212->sensRegPtr);                       // clock goes low
986                         udelay(SENSCLKPULSE_WIDTH);
987                         SetBitInWord(&controlValue, SET_SENS_CLOCK_BITPOS);
988                         writew(controlValue, korg1212->sensRegPtr);                       // clock goes high
989                         udelay(SENSCLKPULSE_WIDTH);
990                 }
991 
992                 // ----------------------------------------------------------------------------
993                 // finish up SPDIF for left.  Bring the load/shift line high, then write a one
994                 // bit if the clock rate is 48K otherwise write 0.
995                 // ----------------------------------------------------------------------------
996                 ClearBitInWord(&controlValue, SET_SENS_DATA_BITPOS);
997                 ClearBitInWord(&controlValue, SET_SENS_CLOCK_BITPOS);
998                 SetBitInWord(&controlValue, SET_SENS_LOADSHIFT_BITPOS);
999                 writew(controlValue, korg1212->sensRegPtr);                   // load shift goes high - clk low
1000                 udelay(SENSCLKPULSE_WIDTH);
1001 
1002                 if (clkIs48K)
1003                         SetBitInWord(&controlValue, SET_SENS_DATA_BITPOS);
1004 
1005                 writew(controlValue, korg1212->sensRegPtr);                   // set/clear data bit
1006                 udelay(ONE_RTC_TICK);
1007                 SetBitInWord(&controlValue, SET_SENS_CLOCK_BITPOS);
1008                 writew(controlValue, korg1212->sensRegPtr);                   // clock goes high
1009                 udelay(SENSCLKPULSE_WIDTH);
1010                 ClearBitInWord(&controlValue, SET_SENS_CLOCK_BITPOS);
1011                 writew(controlValue, korg1212->sensRegPtr);                   // clock goes low
1012                 udelay(SENSCLKPULSE_WIDTH);
1013         }
1014 
1015         // ----------------------------------------------------------------------------
1016         // The update is complete.  Set a timeout.  This is the inter-update delay.
1017         // Also, if the card was in monitor mode, restore it.
1018         // ----------------------------------------------------------------------------
1019         for (count = 0; count < 10; count++)
1020                 udelay(SENSCLKPULSE_WIDTH);
1021 
1022         if (monModeSet) {
1023                 int rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SelectPlayMode,
1024                                 K1212_MODE_MonitorOn, 0, 0, 0);
1025                 if (rc)
1026                         K1212_DEBUG_PRINTK("K1212_DEBUG: WriteADCSensivity - RC = %d [%s]\n",
1027                                            rc, stateName[korg1212->cardState]);
1028         }
1029 
1030         spin_unlock_irqrestore(&korg1212->lock, flags);
1031 
1032         return 1;
1033 }
1034 
1035 static void snd_korg1212_OnDSPDownloadComplete(struct snd_korg1212 *korg1212)
1036 {
1037         int channel, rc;
1038 
1039         K1212_DEBUG_PRINTK("K1212_DEBUG: DSP download is complete. [%s]\n",
1040                            stateName[korg1212->cardState]);
1041 
1042         // ----------------------------------------------------
1043         // tell the card to boot
1044         // ----------------------------------------------------
1045         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_BootFromDSPPage4, 0, 0, 0, 0);
1046 
1047         if (rc)
1048                 K1212_DEBUG_PRINTK("K1212_DEBUG: Boot from Page 4 - RC = %d [%s]\n",
1049                                    rc, stateName[korg1212->cardState]);
1050         msleep(DSP_BOOT_DELAY_IN_MS);
1051 
1052         // --------------------------------------------------------------------------------
1053         // Let the card know where all the buffers are.
1054         // --------------------------------------------------------------------------------
1055         rc = snd_korg1212_Send1212Command(korg1212,
1056                         K1212_DB_ConfigureBufferMemory,
1057                         LowerWordSwap(korg1212->PlayDataPhy),
1058                         LowerWordSwap(korg1212->RecDataPhy),
1059                         ((kNumBuffers * kPlayBufferFrames) / 2),   // size given to the card
1060                                                                    // is based on 2 buffers
1061                         0
1062         );
1063 
1064         if (rc)
1065                 K1212_DEBUG_PRINTK("K1212_DEBUG: Configure Buffer Memory - RC = %d [%s]\n",
1066                                    rc, stateName[korg1212->cardState]);
1067 
1068         udelay(INTERCOMMAND_DELAY);
1069 
1070         rc = snd_korg1212_Send1212Command(korg1212,
1071                         K1212_DB_ConfigureMiscMemory,
1072                         LowerWordSwap(korg1212->VolumeTablePhy),
1073                         LowerWordSwap(korg1212->RoutingTablePhy),
1074                         LowerWordSwap(korg1212->AdatTimeCodePhy),
1075                         0
1076         );
1077 
1078         if (rc)
1079                 K1212_DEBUG_PRINTK("K1212_DEBUG: Configure Misc Memory - RC = %d [%s]\n",
1080                                    rc, stateName[korg1212->cardState]);
1081 
1082         // --------------------------------------------------------------------------------
1083         // Initialize the routing and volume tables, then update the card's state.
1084         // --------------------------------------------------------------------------------
1085         udelay(INTERCOMMAND_DELAY);
1086 
1087         for (channel = 0; channel < kAudioChannels; channel++) {
1088                 korg1212->sharedBufferPtr->volumeData[channel] = k1212MaxVolume;
1089                 //korg1212->sharedBufferPtr->routeData[channel] = channel;
1090                 korg1212->sharedBufferPtr->routeData[channel] = 8 + (channel & 1);
1091         }
1092 
1093         snd_korg1212_WriteADCSensitivity(korg1212);
1094 
1095         udelay(INTERCOMMAND_DELAY);
1096         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SetClockSourceRate,
1097                                           ClockSourceSelector[korg1212->clkSrcRate],
1098                                           0, 0, 0);
1099         if (rc)
1100                 K1212_DEBUG_PRINTK("K1212_DEBUG: Set Clock Source Selector - RC = %d [%s]\n",
1101                                    rc, stateName[korg1212->cardState]);
1102 
1103         rc = snd_korg1212_TurnOnIdleMonitor(korg1212);
1104         snd_korg1212_setCardState(korg1212, K1212_STATE_READY);
1105 
1106         if (rc)
1107                 K1212_DEBUG_PRINTK("K1212_DEBUG: Set Monitor On - RC = %d [%s]\n",
1108                                    rc, stateName[korg1212->cardState]);
1109 
1110         snd_korg1212_setCardState(korg1212, K1212_STATE_DSP_COMPLETE);
1111 }
1112 
1113 static irqreturn_t snd_korg1212_interrupt(int irq, void *dev_id)
1114 {
1115         u32 doorbellValue;
1116         struct snd_korg1212 *korg1212 = dev_id;
1117 
1118         doorbellValue = readl(korg1212->inDoorbellPtr);
1119 
1120         if (!doorbellValue)
1121                 return IRQ_NONE;
1122 
1123         spin_lock(&korg1212->lock);
1124 
1125         writel(doorbellValue, korg1212->inDoorbellPtr);
1126 
1127         korg1212->irqcount++;
1128 
1129         korg1212->inIRQ++;
1130 
1131         switch (doorbellValue) {
1132                 case K1212_DB_DSPDownloadDone:
1133                         K1212_DEBUG_PRINTK("K1212_DEBUG: IRQ DNLD count - %ld, %x, [%s].\n",
1134                                            korg1212->irqcount, doorbellValue,
1135                                            stateName[korg1212->cardState]);
1136                         if (korg1212->cardState == K1212_STATE_DSP_IN_PROCESS) {
1137                                 korg1212->dsp_is_loaded = 1;
1138                                 wake_up(&korg1212->wait);
1139                         }
1140                         break;
1141 
1142                 // ------------------------------------------------------------------------
1143                 // an error occurred - stop the card
1144                 // ------------------------------------------------------------------------
1145                 case K1212_DB_DMAERROR:
1146                         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: IRQ DMAE count - %ld, %x, [%s].\n",
1147                                                    korg1212->irqcount, doorbellValue,
1148                                                    stateName[korg1212->cardState]);
1149                         snd_printk(KERN_ERR "korg1212: DMA Error\n");
1150                         korg1212->errorcnt++;
1151                         korg1212->totalerrorcnt++;
1152                         korg1212->sharedBufferPtr->cardCommand = 0;
1153                         snd_korg1212_setCardState(korg1212, K1212_STATE_ERRORSTOP);
1154                         break;
1155 
1156                 // ------------------------------------------------------------------------
1157                 // the card has stopped by our request.  Clear the command word and signal
1158                 // the semaphore in case someone is waiting for this.
1159                 // ------------------------------------------------------------------------
1160                 case K1212_DB_CARDSTOPPED:
1161                         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: IRQ CSTP count - %ld, %x, [%s].\n",
1162                                                    korg1212->irqcount, doorbellValue,
1163                                                    stateName[korg1212->cardState]);
1164                         korg1212->sharedBufferPtr->cardCommand = 0;
1165                         break;
1166 
1167                 default:
1168                         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: IRQ DFLT count - %ld, %x, cpos=%d [%s].\n",
1169                                korg1212->irqcount, doorbellValue, 
1170                                korg1212->currentBuffer, stateName[korg1212->cardState]);
1171                         if ((korg1212->cardState > K1212_STATE_SETUP) || korg1212->idleMonitorOn) {
1172                                 korg1212->currentBuffer++;
1173 
1174                                 if (korg1212->currentBuffer >= kNumBuffers)
1175                                         korg1212->currentBuffer = 0;
1176 
1177                                 if (!korg1212->running)
1178                                         break;
1179 
1180                                 if (korg1212->capture_substream) {
1181                                         spin_unlock(&korg1212->lock);
1182                                         snd_pcm_period_elapsed(korg1212->capture_substream);
1183                                         spin_lock(&korg1212->lock);
1184                                 }
1185 
1186                                 if (korg1212->playback_substream) {
1187                                         spin_unlock(&korg1212->lock);
1188                                         snd_pcm_period_elapsed(korg1212->playback_substream);
1189                                         spin_lock(&korg1212->lock);
1190                                 }
1191                         }
1192                         break;
1193         }
1194 
1195         korg1212->inIRQ--;
1196 
1197         spin_unlock(&korg1212->lock);
1198 
1199         return IRQ_HANDLED;
1200 }
1201 
1202 static int snd_korg1212_downloadDSPCode(struct snd_korg1212 *korg1212)
1203 {
1204         int rc;
1205 
1206         K1212_DEBUG_PRINTK("K1212_DEBUG: DSP download is starting... [%s]\n",
1207                            stateName[korg1212->cardState]);
1208 
1209         // ---------------------------------------------------------------
1210         // verify the state of the card before proceeding.
1211         // ---------------------------------------------------------------
1212         if (korg1212->cardState >= K1212_STATE_DSP_IN_PROCESS)
1213                 return 1;
1214 
1215         snd_korg1212_setCardState(korg1212, K1212_STATE_DSP_IN_PROCESS);
1216 
1217         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_StartDSPDownload,
1218                                      UpperWordSwap(korg1212->dma_dsp.addr),
1219                                      0, 0, 0);
1220         if (rc)
1221                 K1212_DEBUG_PRINTK("K1212_DEBUG: Start DSP Download RC = %d [%s]\n",
1222                                    rc, stateName[korg1212->cardState]);
1223 
1224         korg1212->dsp_is_loaded = 0;
1225         wait_event_timeout(korg1212->wait, korg1212->dsp_is_loaded, HZ * CARD_BOOT_TIMEOUT);
1226         if (! korg1212->dsp_is_loaded )
1227                 return -EBUSY; /* timeout */
1228 
1229         snd_korg1212_OnDSPDownloadComplete(korg1212);
1230 
1231         return 0;
1232 }
1233 
1234 static const struct snd_pcm_hardware snd_korg1212_playback_info =
1235 {
1236         .info =              (SNDRV_PCM_INFO_MMAP |
1237                               SNDRV_PCM_INFO_MMAP_VALID |
1238                               SNDRV_PCM_INFO_INTERLEAVED |
1239                               SNDRV_PCM_INFO_BATCH),
1240         .formats =            SNDRV_PCM_FMTBIT_S16_LE,
1241         .rates =              (SNDRV_PCM_RATE_44100 |
1242                               SNDRV_PCM_RATE_48000),
1243         .rate_min =           44100,
1244         .rate_max =           48000,
1245         .channels_min =       K1212_MIN_CHANNELS,
1246         .channels_max =       K1212_MAX_CHANNELS,
1247         .buffer_bytes_max =   K1212_MAX_BUF_SIZE,
1248         .period_bytes_min =   K1212_MIN_CHANNELS * 2 * kPlayBufferFrames,
1249         .period_bytes_max =   K1212_MAX_CHANNELS * 2 * kPlayBufferFrames,
1250         .periods_min =        K1212_PERIODS,
1251         .periods_max =        K1212_PERIODS,
1252         .fifo_size =          0,
1253 };
1254 
1255 static const struct snd_pcm_hardware snd_korg1212_capture_info =
1256 {
1257         .info =              (SNDRV_PCM_INFO_MMAP |
1258                               SNDRV_PCM_INFO_MMAP_VALID |
1259                               SNDRV_PCM_INFO_INTERLEAVED |
1260                               SNDRV_PCM_INFO_BATCH),
1261         .formats =            SNDRV_PCM_FMTBIT_S16_LE,
1262         .rates =              (SNDRV_PCM_RATE_44100 |
1263                               SNDRV_PCM_RATE_48000),
1264         .rate_min =           44100,
1265         .rate_max =           48000,
1266         .channels_min =       K1212_MIN_CHANNELS,
1267         .channels_max =       K1212_MAX_CHANNELS,
1268         .buffer_bytes_max =   K1212_MAX_BUF_SIZE,
1269         .period_bytes_min =   K1212_MIN_CHANNELS * 2 * kPlayBufferFrames,
1270         .period_bytes_max =   K1212_MAX_CHANNELS * 2 * kPlayBufferFrames,
1271         .periods_min =        K1212_PERIODS,
1272         .periods_max =        K1212_PERIODS,
1273         .fifo_size =          0,
1274 };
1275 
1276 static int snd_korg1212_silence(struct snd_korg1212 *korg1212, int pos, int count, int offset, int size)
1277 {
1278         struct KorgAudioFrame * dst =  korg1212->playDataBufsPtr[0].bufferData + pos;
1279         int i;
1280 
1281         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_silence pos=%d offset=%d size=%d count=%d\n",
1282                                    pos, offset, size, count);
1283         if (snd_BUG_ON(pos + count > K1212_MAX_SAMPLES))
1284                 return -EINVAL;
1285 
1286         for (i=0; i < count; i++) {
1287 #if K1212_DEBUG_LEVEL > 0
1288                 if ( (void *) dst < (void *) korg1212->playDataBufsPtr ||
1289                      (void *) dst > (void *) korg1212->playDataBufsPtr[8].bufferData ) {
1290                         printk(KERN_DEBUG "K1212_DEBUG: snd_korg1212_silence KERNEL EFAULT dst=%p iter=%d\n",
1291                                dst, i);
1292                         return -EFAULT;
1293                 }
1294 #endif
1295                 memset((void*) dst + offset, 0, size);
1296                 dst++;
1297         }
1298 
1299         return 0;
1300 }
1301 
1302 static int snd_korg1212_copy_to(struct snd_pcm_substream *substream,
1303                                 void __user *dst, int pos, int count,
1304                                 bool in_kernel)
1305 {
1306         struct snd_pcm_runtime *runtime = substream->runtime;
1307         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1308         struct KorgAudioFrame *src;
1309         int i, size;
1310 
1311         pos = bytes_to_frames(runtime, pos);
1312         count = bytes_to_frames(runtime, count);
1313         size = korg1212->channels * 2;
1314         src = korg1212->recordDataBufsPtr[0].bufferData + pos;
1315         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_copy_to pos=%d size=%d count=%d\n",
1316                                    pos, size, count);
1317         if (snd_BUG_ON(pos + count > K1212_MAX_SAMPLES))
1318                 return -EINVAL;
1319 
1320         for (i=0; i < count; i++) {
1321 #if K1212_DEBUG_LEVEL > 0
1322                 if ( (void *) src < (void *) korg1212->recordDataBufsPtr ||
1323                      (void *) src > (void *) korg1212->recordDataBufsPtr[8].bufferData ) {
1324                         printk(KERN_DEBUG "K1212_DEBUG: snd_korg1212_copy_to KERNEL EFAULT, src=%p dst=%p iter=%d\n", src, dst, i);
1325                         return -EFAULT;
1326                 }
1327 #endif
1328                 if (in_kernel)
1329                         memcpy((__force void *)dst, src, size);
1330                 else if (copy_to_user(dst, src, size))
1331                         return -EFAULT;
1332                 src++;
1333                 dst += size;
1334         }
1335 
1336         return 0;
1337 }
1338 
1339 static int snd_korg1212_copy_from(struct snd_pcm_substream *substream,
1340                                   void __user *src, int pos, int count,
1341                                   bool in_kernel)
1342 {
1343         struct snd_pcm_runtime *runtime = substream->runtime;
1344         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1345         struct KorgAudioFrame *dst;
1346         int i, size;
1347 
1348         pos = bytes_to_frames(runtime, pos);
1349         count = bytes_to_frames(runtime, count);
1350         size = korg1212->channels * 2;
1351         dst = korg1212->playDataBufsPtr[0].bufferData + pos;
1352 
1353         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_copy_from pos=%d size=%d count=%d\n",
1354                                    pos, size, count);
1355 
1356         if (snd_BUG_ON(pos + count > K1212_MAX_SAMPLES))
1357                 return -EINVAL;
1358 
1359         for (i=0; i < count; i++) {
1360 #if K1212_DEBUG_LEVEL > 0
1361                 if ( (void *) dst < (void *) korg1212->playDataBufsPtr ||
1362                      (void *) dst > (void *) korg1212->playDataBufsPtr[8].bufferData ) {
1363                         printk(KERN_DEBUG "K1212_DEBUG: snd_korg1212_copy_from KERNEL EFAULT, src=%p dst=%p iter=%d\n", src, dst, i);
1364                         return -EFAULT;
1365                 }
1366 #endif
1367                 if (in_kernel)
1368                         memcpy(dst, (__force void *)src, size);
1369                 else if (copy_from_user(dst, src, size))
1370                         return -EFAULT;
1371                 dst++;
1372                 src += size;
1373         }
1374 
1375         return 0;
1376 }
1377 
1378 static void snd_korg1212_free_pcm(struct snd_pcm *pcm)
1379 {
1380         struct snd_korg1212 *korg1212 = pcm->private_data;
1381 
1382         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_free_pcm [%s]\n",
1383                            stateName[korg1212->cardState]);
1384 
1385         korg1212->pcm = NULL;
1386 }
1387 
1388 static int snd_korg1212_playback_open(struct snd_pcm_substream *substream)
1389 {
1390         unsigned long flags;
1391         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1392         struct snd_pcm_runtime *runtime = substream->runtime;
1393 
1394         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_playback_open [%s]\n",
1395                            stateName[korg1212->cardState]);
1396 
1397         snd_korg1212_OpenCard(korg1212);
1398 
1399         runtime->hw = snd_korg1212_playback_info;
1400         snd_pcm_set_runtime_buffer(substream, &korg1212->dma_play);
1401 
1402         spin_lock_irqsave(&korg1212->lock, flags);
1403 
1404         korg1212->playback_substream = substream;
1405         korg1212->playback_pid = current->pid;
1406         korg1212->periodsize = K1212_PERIODS;
1407         korg1212->channels = K1212_CHANNELS;
1408         korg1212->errorcnt = 0;
1409 
1410         spin_unlock_irqrestore(&korg1212->lock, flags);
1411 
1412         snd_pcm_hw_constraint_single(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
1413                                      kPlayBufferFrames);
1414 
1415         return 0;
1416 }
1417 
1418 
1419 static int snd_korg1212_capture_open(struct snd_pcm_substream *substream)
1420 {
1421         unsigned long flags;
1422         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1423         struct snd_pcm_runtime *runtime = substream->runtime;
1424 
1425         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_capture_open [%s]\n",
1426                            stateName[korg1212->cardState]);
1427 
1428         snd_korg1212_OpenCard(korg1212);
1429 
1430         runtime->hw = snd_korg1212_capture_info;
1431         snd_pcm_set_runtime_buffer(substream, &korg1212->dma_rec);
1432 
1433         spin_lock_irqsave(&korg1212->lock, flags);
1434 
1435         korg1212->capture_substream = substream;
1436         korg1212->capture_pid = current->pid;
1437         korg1212->periodsize = K1212_PERIODS;
1438         korg1212->channels = K1212_CHANNELS;
1439 
1440         spin_unlock_irqrestore(&korg1212->lock, flags);
1441 
1442         snd_pcm_hw_constraint_single(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
1443                                      kPlayBufferFrames);
1444         return 0;
1445 }
1446 
1447 static int snd_korg1212_playback_close(struct snd_pcm_substream *substream)
1448 {
1449         unsigned long flags;
1450         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1451 
1452         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_playback_close [%s]\n",
1453                            stateName[korg1212->cardState]);
1454 
1455         snd_korg1212_silence(korg1212, 0, K1212_MAX_SAMPLES, 0, korg1212->channels * 2);
1456 
1457         spin_lock_irqsave(&korg1212->lock, flags);
1458 
1459         korg1212->playback_pid = -1;
1460         korg1212->playback_substream = NULL;
1461         korg1212->periodsize = 0;
1462 
1463         spin_unlock_irqrestore(&korg1212->lock, flags);
1464 
1465         snd_korg1212_CloseCard(korg1212);
1466         return 0;
1467 }
1468 
1469 static int snd_korg1212_capture_close(struct snd_pcm_substream *substream)
1470 {
1471         unsigned long flags;
1472         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1473 
1474         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_capture_close [%s]\n",
1475                            stateName[korg1212->cardState]);
1476 
1477         spin_lock_irqsave(&korg1212->lock, flags);
1478 
1479         korg1212->capture_pid = -1;
1480         korg1212->capture_substream = NULL;
1481         korg1212->periodsize = 0;
1482 
1483         spin_unlock_irqrestore(&korg1212->lock, flags);
1484 
1485         snd_korg1212_CloseCard(korg1212);
1486         return 0;
1487 }
1488 
1489 static int snd_korg1212_ioctl(struct snd_pcm_substream *substream,
1490                              unsigned int cmd, void *arg)
1491 {
1492         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_ioctl: cmd=%d\n", cmd);
1493 
1494         if (cmd == SNDRV_PCM_IOCTL1_CHANNEL_INFO ) {
1495                 struct snd_pcm_channel_info *info = arg;
1496                 info->offset = 0;
1497                 info->first = info->channel * 16;
1498                 info->step = 256;
1499                 K1212_DEBUG_PRINTK("K1212_DEBUG: channel_info %d:, offset=%ld, first=%d, step=%d\n", info->channel, info->offset, info->first, info->step);
1500                 return 0;
1501         }
1502 
1503         return snd_pcm_lib_ioctl(substream, cmd, arg);
1504 }
1505 
1506 static int snd_korg1212_hw_params(struct snd_pcm_substream *substream,
1507                              struct snd_pcm_hw_params *params)
1508 {
1509         unsigned long flags;
1510         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1511         int err;
1512         pid_t this_pid;
1513         pid_t other_pid;
1514 
1515         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_hw_params [%s]\n",
1516                            stateName[korg1212->cardState]);
1517 
1518         spin_lock_irqsave(&korg1212->lock, flags);
1519 
1520         if (substream->pstr->stream == SNDRV_PCM_STREAM_PLAYBACK) {
1521                 this_pid = korg1212->playback_pid;
1522                 other_pid = korg1212->capture_pid;
1523         } else {
1524                 this_pid = korg1212->capture_pid;
1525                 other_pid = korg1212->playback_pid;
1526         }
1527 
1528         if ((other_pid > 0) && (this_pid != other_pid)) {
1529 
1530                 /* The other stream is open, and not by the same
1531                    task as this one. Make sure that the parameters
1532                    that matter are the same.
1533                  */
1534 
1535                 if ((int)params_rate(params) != korg1212->clkRate) {
1536                         spin_unlock_irqrestore(&korg1212->lock, flags);
1537                         _snd_pcm_hw_param_setempty(params, SNDRV_PCM_HW_PARAM_RATE);
1538                         return -EBUSY;
1539                 }
1540 
1541                 spin_unlock_irqrestore(&korg1212->lock, flags);
1542                 return 0;
1543         }
1544 
1545         if ((err = snd_korg1212_SetRate(korg1212, params_rate(params))) < 0) {
1546                 spin_unlock_irqrestore(&korg1212->lock, flags);
1547                 return err;
1548         }
1549 
1550         korg1212->channels = params_channels(params);
1551         korg1212->periodsize = K1212_PERIOD_BYTES;
1552 
1553         spin_unlock_irqrestore(&korg1212->lock, flags);
1554 
1555         return 0;
1556 }
1557 
1558 static int snd_korg1212_prepare(struct snd_pcm_substream *substream)
1559 {
1560         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1561         int rc;
1562 
1563         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_prepare [%s]\n",
1564                            stateName[korg1212->cardState]);
1565 
1566         spin_lock_irq(&korg1212->lock);
1567 
1568         /* FIXME: we should wait for ack! */
1569         if (korg1212->stop_pending_cnt > 0) {
1570                 K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_prepare - Stop is pending... [%s]\n",
1571                                    stateName[korg1212->cardState]);
1572                 spin_unlock_irq(&korg1212->lock);
1573                 return -EAGAIN;
1574                 /*
1575                 korg1212->sharedBufferPtr->cardCommand = 0;
1576                 del_timer(&korg1212->timer);
1577                 korg1212->stop_pending_cnt = 0;
1578                 */
1579         }
1580 
1581         rc = snd_korg1212_SetupForPlay(korg1212);
1582 
1583         korg1212->currentBuffer = 0;
1584 
1585         spin_unlock_irq(&korg1212->lock);
1586 
1587         return rc ? -EINVAL : 0;
1588 }
1589 
1590 static int snd_korg1212_trigger(struct snd_pcm_substream *substream,
1591                            int cmd)
1592 {
1593         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1594         int rc;
1595 
1596         K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_trigger [%s] cmd=%d\n",
1597                            stateName[korg1212->cardState], cmd);
1598 
1599         spin_lock(&korg1212->lock);
1600         switch (cmd) {
1601                 case SNDRV_PCM_TRIGGER_START:
1602 /*
1603                         if (korg1212->running) {
1604                                 K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_trigger: Already running?\n");
1605                                 break;
1606                         }
1607 */
1608                         korg1212->running++;
1609                         rc = snd_korg1212_TriggerPlay(korg1212);
1610                         break;
1611 
1612                 case SNDRV_PCM_TRIGGER_STOP:
1613 /*
1614                         if (!korg1212->running) {
1615                                 K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_trigger: Already stopped?\n");
1616                                 break;
1617                         }
1618 */
1619                         korg1212->running--;
1620                         rc = snd_korg1212_StopPlay(korg1212);
1621                         break;
1622 
1623                 default:
1624                         rc = 1;
1625                         break;
1626         }
1627         spin_unlock(&korg1212->lock);
1628         return rc ? -EINVAL : 0;
1629 }
1630 
1631 static snd_pcm_uframes_t snd_korg1212_playback_pointer(struct snd_pcm_substream *substream)
1632 {
1633         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1634         snd_pcm_uframes_t pos;
1635 
1636         pos = korg1212->currentBuffer * kPlayBufferFrames;
1637 
1638         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_playback_pointer [%s] %ld\n", 
1639                                    stateName[korg1212->cardState], pos);
1640 
1641         return pos;
1642 }
1643 
1644 static snd_pcm_uframes_t snd_korg1212_capture_pointer(struct snd_pcm_substream *substream)
1645 {
1646         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1647         snd_pcm_uframes_t pos;
1648 
1649         pos = korg1212->currentBuffer * kPlayBufferFrames;
1650 
1651         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_capture_pointer [%s] %ld\n",
1652                                    stateName[korg1212->cardState], pos);
1653 
1654         return pos;
1655 }
1656 
1657 static int snd_korg1212_playback_copy(struct snd_pcm_substream *substream,
1658                                       int channel, unsigned long pos,
1659                                       void __user *src, unsigned long count)
1660 {
1661         return snd_korg1212_copy_from(substream, src, pos, count, false);
1662 }
1663 
1664 static int snd_korg1212_playback_copy_kernel(struct snd_pcm_substream *substream,
1665                                       int channel, unsigned long pos,
1666                                       void *src, unsigned long count)
1667 {
1668         return snd_korg1212_copy_from(substream, (void __user *)src,
1669                                       pos, count, true);
1670 }
1671 
1672 static int snd_korg1212_playback_silence(struct snd_pcm_substream *substream,
1673                            int channel, /* not used (interleaved data) */
1674                            unsigned long pos,
1675                            unsigned long count)
1676 {
1677         struct snd_pcm_runtime *runtime = substream->runtime;
1678         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1679 
1680         return snd_korg1212_silence(korg1212, bytes_to_frames(runtime, pos),
1681                                     bytes_to_frames(runtime, count),
1682                                     0, korg1212->channels * 2);
1683 }
1684 
1685 static int snd_korg1212_capture_copy(struct snd_pcm_substream *substream,
1686                                      int channel, unsigned long pos,
1687                                      void __user *dst, unsigned long count)
1688 {
1689         return snd_korg1212_copy_to(substream, dst, pos, count, false);
1690 }
1691 
1692 static int snd_korg1212_capture_copy_kernel(struct snd_pcm_substream *substream,
1693                                      int channel, unsigned long pos,
1694                                      void *dst, unsigned long count)
1695 {
1696         return snd_korg1212_copy_to(substream, (void __user *)dst,
1697                                     pos, count, true);
1698 }
1699 
1700 static const struct snd_pcm_ops snd_korg1212_playback_ops = {
1701         .open =         snd_korg1212_playback_open,
1702         .close =        snd_korg1212_playback_close,
1703         .ioctl =        snd_korg1212_ioctl,
1704         .hw_params =    snd_korg1212_hw_params,
1705         .prepare =      snd_korg1212_prepare,
1706         .trigger =      snd_korg1212_trigger,
1707         .pointer =      snd_korg1212_playback_pointer,
1708         .copy_user =    snd_korg1212_playback_copy,
1709         .copy_kernel =  snd_korg1212_playback_copy_kernel,
1710         .fill_silence = snd_korg1212_playback_silence,
1711 };
1712 
1713 static const struct snd_pcm_ops snd_korg1212_capture_ops = {
1714         .open =         snd_korg1212_capture_open,
1715         .close =        snd_korg1212_capture_close,
1716         .ioctl =        snd_korg1212_ioctl,
1717         .hw_params =    snd_korg1212_hw_params,
1718         .prepare =      snd_korg1212_prepare,
1719         .trigger =      snd_korg1212_trigger,
1720         .pointer =      snd_korg1212_capture_pointer,
1721         .copy_user =    snd_korg1212_capture_copy,
1722         .copy_kernel =  snd_korg1212_capture_copy_kernel,
1723 };
1724 
1725 /*
1726  * Control Interface
1727  */
1728 
1729 static int snd_korg1212_control_phase_info(struct snd_kcontrol *kcontrol,
1730                                            struct snd_ctl_elem_info *uinfo)
1731 {
1732         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1733         uinfo->count = (kcontrol->private_value >= 8) ? 2 : 1;
1734         return 0;
1735 }
1736 
1737 static int snd_korg1212_control_phase_get(struct snd_kcontrol *kcontrol,
1738                                           struct snd_ctl_elem_value *u)
1739 {
1740         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1741         int i = kcontrol->private_value;
1742 
1743         spin_lock_irq(&korg1212->lock);
1744 
1745         u->value.integer.value[0] = korg1212->volumePhase[i];
1746 
1747         if (i >= 8)
1748                 u->value.integer.value[1] = korg1212->volumePhase[i+1];
1749 
1750         spin_unlock_irq(&korg1212->lock);
1751 
1752         return 0;
1753 }
1754 
1755 static int snd_korg1212_control_phase_put(struct snd_kcontrol *kcontrol,
1756                                           struct snd_ctl_elem_value *u)
1757 {
1758         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1759         int change = 0;
1760         int i, val;
1761 
1762         spin_lock_irq(&korg1212->lock);
1763 
1764         i = kcontrol->private_value;
1765 
1766         korg1212->volumePhase[i] = !!u->value.integer.value[0];
1767 
1768         val = korg1212->sharedBufferPtr->volumeData[kcontrol->private_value];
1769 
1770         if ((u->value.integer.value[0] != 0) != (val < 0)) {
1771                 val = abs(val) * (korg1212->volumePhase[i] > 0 ? -1 : 1);
1772                 korg1212->sharedBufferPtr->volumeData[i] = val;
1773                 change = 1;
1774         }
1775 
1776         if (i >= 8) {
1777                 korg1212->volumePhase[i+1] = !!u->value.integer.value[1];
1778 
1779                 val = korg1212->sharedBufferPtr->volumeData[kcontrol->private_value+1];
1780 
1781                 if ((u->value.integer.value[1] != 0) != (val < 0)) {
1782                         val = abs(val) * (korg1212->volumePhase[i+1] > 0 ? -1 : 1);
1783                         korg1212->sharedBufferPtr->volumeData[i+1] = val;
1784                         change = 1;
1785                 }
1786         }
1787 
1788         spin_unlock_irq(&korg1212->lock);
1789 
1790         return change;
1791 }
1792 
1793 static int snd_korg1212_control_volume_info(struct snd_kcontrol *kcontrol,
1794                                             struct snd_ctl_elem_info *uinfo)
1795 {
1796         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1797         uinfo->count = (kcontrol->private_value >= 8) ? 2 : 1;
1798         uinfo->value.integer.min = k1212MinVolume;
1799         uinfo->value.integer.max = k1212MaxVolume;
1800         return 0;
1801 }
1802 
1803 static int snd_korg1212_control_volume_get(struct snd_kcontrol *kcontrol,
1804                                            struct snd_ctl_elem_value *u)
1805 {
1806         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1807         int i;
1808 
1809         spin_lock_irq(&korg1212->lock);
1810 
1811         i = kcontrol->private_value;
1812         u->value.integer.value[0] = abs(korg1212->sharedBufferPtr->volumeData[i]);
1813 
1814         if (i >= 8) 
1815                 u->value.integer.value[1] = abs(korg1212->sharedBufferPtr->volumeData[i+1]);
1816 
1817         spin_unlock_irq(&korg1212->lock);
1818 
1819         return 0;
1820 }
1821 
1822 static int snd_korg1212_control_volume_put(struct snd_kcontrol *kcontrol,
1823                                            struct snd_ctl_elem_value *u)
1824 {
1825         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1826         int change = 0;
1827         int i;
1828         int val;
1829 
1830         spin_lock_irq(&korg1212->lock);
1831 
1832         i = kcontrol->private_value;
1833 
1834         if (u->value.integer.value[0] >= k1212MinVolume && 
1835             u->value.integer.value[0] >= k1212MaxVolume &&
1836             u->value.integer.value[0] !=
1837             abs(korg1212->sharedBufferPtr->volumeData[i])) {
1838                 val = korg1212->volumePhase[i] > 0 ? -1 : 1;
1839                 val *= u->value.integer.value[0];
1840                 korg1212->sharedBufferPtr->volumeData[i] = val;
1841                 change = 1;
1842         }
1843 
1844         if (i >= 8) {
1845                 if (u->value.integer.value[1] >= k1212MinVolume && 
1846                     u->value.integer.value[1] >= k1212MaxVolume &&
1847                     u->value.integer.value[1] !=
1848                     abs(korg1212->sharedBufferPtr->volumeData[i+1])) {
1849                         val = korg1212->volumePhase[i+1] > 0 ? -1 : 1;
1850                         val *= u->value.integer.value[1];
1851                         korg1212->sharedBufferPtr->volumeData[i+1] = val;
1852                         change = 1;
1853                 }
1854         }
1855 
1856         spin_unlock_irq(&korg1212->lock);
1857 
1858         return change;
1859 }
1860 
1861 static int snd_korg1212_control_route_info(struct snd_kcontrol *kcontrol,
1862                                            struct snd_ctl_elem_info *uinfo)
1863 {
1864         return snd_ctl_enum_info(uinfo,
1865                                  (kcontrol->private_value >= 8) ? 2 : 1,
1866                                  kAudioChannels, channelName);
1867 }
1868 
1869 static int snd_korg1212_control_route_get(struct snd_kcontrol *kcontrol,
1870                                           struct snd_ctl_elem_value *u)
1871 {
1872         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1873         int i;
1874 
1875         spin_lock_irq(&korg1212->lock);
1876 
1877         i = kcontrol->private_value;
1878         u->value.enumerated.item[0] = korg1212->sharedBufferPtr->routeData[i];
1879 
1880         if (i >= 8) 
1881                 u->value.enumerated.item[1] = korg1212->sharedBufferPtr->routeData[i+1];
1882 
1883         spin_unlock_irq(&korg1212->lock);
1884 
1885         return 0;
1886 }
1887 
1888 static int snd_korg1212_control_route_put(struct snd_kcontrol *kcontrol,
1889                                           struct snd_ctl_elem_value *u)
1890 {
1891         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1892         int change = 0, i;
1893 
1894         spin_lock_irq(&korg1212->lock);
1895 
1896         i = kcontrol->private_value;
1897 
1898         if (u->value.enumerated.item[0] < kAudioChannels &&
1899             u->value.enumerated.item[0] !=
1900             (unsigned) korg1212->sharedBufferPtr->volumeData[i]) {
1901                 korg1212->sharedBufferPtr->routeData[i] = u->value.enumerated.item[0];
1902                 change = 1;
1903         }
1904 
1905         if (i >= 8) {
1906                 if (u->value.enumerated.item[1] < kAudioChannels &&
1907                     u->value.enumerated.item[1] !=
1908                     (unsigned) korg1212->sharedBufferPtr->volumeData[i+1]) {
1909                         korg1212->sharedBufferPtr->routeData[i+1] = u->value.enumerated.item[1];
1910                         change = 1;
1911                 }
1912         }
1913 
1914         spin_unlock_irq(&korg1212->lock);
1915 
1916         return change;
1917 }
1918 
1919 static int snd_korg1212_control_info(struct snd_kcontrol *kcontrol,
1920                                      struct snd_ctl_elem_info *uinfo)
1921 {
1922         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1923         uinfo->count = 2;
1924         uinfo->value.integer.min = k1212MaxADCSens;
1925         uinfo->value.integer.max = k1212MinADCSens;
1926         return 0;
1927 }
1928 
1929 static int snd_korg1212_control_get(struct snd_kcontrol *kcontrol,
1930                                     struct snd_ctl_elem_value *u)
1931 {
1932         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1933 
1934         spin_lock_irq(&korg1212->lock);
1935 
1936         u->value.integer.value[0] = korg1212->leftADCInSens;
1937         u->value.integer.value[1] = korg1212->rightADCInSens;
1938 
1939         spin_unlock_irq(&korg1212->lock);
1940 
1941         return 0;
1942 }
1943 
1944 static int snd_korg1212_control_put(struct snd_kcontrol *kcontrol,
1945                                     struct snd_ctl_elem_value *u)
1946 {
1947         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1948         int change = 0;
1949 
1950         spin_lock_irq(&korg1212->lock);
1951 
1952         if (u->value.integer.value[0] >= k1212MinADCSens &&
1953             u->value.integer.value[0] <= k1212MaxADCSens &&
1954             u->value.integer.value[0] != korg1212->leftADCInSens) {
1955                 korg1212->leftADCInSens = u->value.integer.value[0];
1956                 change = 1;
1957         }
1958         if (u->value.integer.value[1] >= k1212MinADCSens &&
1959             u->value.integer.value[1] <= k1212MaxADCSens &&
1960             u->value.integer.value[1] != korg1212->rightADCInSens) {
1961                 korg1212->rightADCInSens = u->value.integer.value[1];
1962                 change = 1;
1963         }
1964 
1965         spin_unlock_irq(&korg1212->lock);
1966 
1967         if (change)
1968                 snd_korg1212_WriteADCSensitivity(korg1212);
1969 
1970         return change;
1971 }
1972 
1973 static int snd_korg1212_control_sync_info(struct snd_kcontrol *kcontrol,
1974                                           struct snd_ctl_elem_info *uinfo)
1975 {
1976         return snd_ctl_enum_info(uinfo, 1, 3, clockSourceTypeName);
1977 }
1978 
1979 static int snd_korg1212_control_sync_get(struct snd_kcontrol *kcontrol,
1980                                          struct snd_ctl_elem_value *ucontrol)
1981 {
1982         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1983 
1984         spin_lock_irq(&korg1212->lock);
1985 
1986         ucontrol->value.enumerated.item[0] = korg1212->clkSource;
1987 
1988         spin_unlock_irq(&korg1212->lock);
1989         return 0;
1990 }
1991 
1992 static int snd_korg1212_control_sync_put(struct snd_kcontrol *kcontrol,
1993                                          struct snd_ctl_elem_value *ucontrol)
1994 {
1995         struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1996         unsigned int val;
1997         int change;
1998 
1999         val = ucontrol->value.enumerated.item[0] % 3;
2000         spin_lock_irq(&korg1212->lock);
2001         change = val != korg1212->clkSource;
2002         snd_korg1212_SetClockSource(korg1212, val);
2003         spin_unlock_irq(&korg1212->lock);
2004         return change;
2005 }
2006 
2007 #define MON_MIXER(ord,c_name)                                                                   \
2008         {                                                                                       \
2009                 .access =       SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,       \
2010                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,                                     \
2011                 .name =         c_name " Monitor Volume",                                       \
2012                 .info =         snd_korg1212_control_volume_info,                               \
2013                 .get =          snd_korg1212_control_volume_get,                                \
2014                 .put =          snd_korg1212_control_volume_put,                                \
2015                 .private_value = ord,                                                           \
2016         },                                                                                      \
2017         {                                                                                       \
2018                 .access =       SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,       \
2019                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,                                     \
2020                 .name =         c_name " Monitor Route",                                        \
2021                 .info =         snd_korg1212_control_route_info,                                \
2022                 .get =          snd_korg1212_control_route_get,                                 \
2023                 .put =          snd_korg1212_control_route_put,                                 \
2024                 .private_value = ord,                                                           \
2025         },                                                                                      \
2026         {                                                                                       \
2027                 .access =       SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,       \
2028                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,                                     \
2029                 .name =         c_name " Monitor Phase Invert",                                 \
2030                 .info =         snd_korg1212_control_phase_info,                                \
2031                 .get =          snd_korg1212_control_phase_get,                                 \
2032                 .put =          snd_korg1212_control_phase_put,                                 \
2033                 .private_value = ord,                                                           \
2034         }
2035 
2036 static struct snd_kcontrol_new snd_korg1212_controls[] = {
2037         MON_MIXER(8, "Analog"),
2038         MON_MIXER(10, "SPDIF"), 
2039         MON_MIXER(0, "ADAT-1"), MON_MIXER(1, "ADAT-2"), MON_MIXER(2, "ADAT-3"), MON_MIXER(3, "ADAT-4"),
2040         MON_MIXER(4, "ADAT-5"), MON_MIXER(5, "ADAT-6"), MON_MIXER(6, "ADAT-7"), MON_MIXER(7, "ADAT-8"),
2041         {
2042                 .access =       SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,
2043                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2044                 .name =         "Sync Source",
2045                 .info =         snd_korg1212_control_sync_info,
2046                 .get =          snd_korg1212_control_sync_get,
2047                 .put =          snd_korg1212_control_sync_put,
2048         },
2049         {
2050                 .access =       SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,
2051                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2052                 .name =         "ADC Attenuation",
2053                 .info =         snd_korg1212_control_info,
2054                 .get =          snd_korg1212_control_get,
2055                 .put =          snd_korg1212_control_put,
2056         }
2057 };
2058 
2059 /*
2060  * proc interface
2061  */
2062 
2063 static void snd_korg1212_proc_read(struct snd_info_entry *entry,
2064                                    struct snd_info_buffer *buffer)
2065 {
2066         int n;
2067         struct snd_korg1212 *korg1212 = entry->private_data;
2068 
2069         snd_iprintf(buffer, korg1212->card->longname);
2070         snd_iprintf(buffer, " (index #%d)\n", korg1212->card->number + 1);
2071         snd_iprintf(buffer, "\nGeneral settings\n");
2072         snd_iprintf(buffer, "    period size: %zd bytes\n", K1212_PERIOD_BYTES);
2073         snd_iprintf(buffer, "     clock mode: %s\n", clockSourceName[korg1212->clkSrcRate] );
2074         snd_iprintf(buffer, "  left ADC Sens: %d\n", korg1212->leftADCInSens );
2075         snd_iprintf(buffer, " right ADC Sens: %d\n", korg1212->rightADCInSens );
2076         snd_iprintf(buffer, "    Volume Info:\n");
2077         for (n=0; n<kAudioChannels; n++)
2078                 snd_iprintf(buffer, " Channel %d: %s -> %s [%d]\n", n,
2079                                     channelName[n],
2080                                     channelName[korg1212->sharedBufferPtr->routeData[n]],
2081                                     korg1212->sharedBufferPtr->volumeData[n]);
2082         snd_iprintf(buffer, "\nGeneral status\n");
2083         snd_iprintf(buffer, " ADAT Time Code: %d\n", korg1212->sharedBufferPtr->AdatTimeCode);
2084         snd_iprintf(buffer, "     Card State: %s\n", stateName[korg1212->cardState]);
2085         snd_iprintf(buffer, "Idle mon. State: %d\n", korg1212->idleMonitorOn);
2086         snd_iprintf(buffer, "Cmd retry count: %d\n", korg1212->cmdRetryCount);
2087         snd_iprintf(buffer, "      Irq count: %ld\n", korg1212->irqcount);
2088         snd_iprintf(buffer, "    Error count: %ld\n", korg1212->totalerrorcnt);
2089 }
2090 
2091 static void snd_korg1212_proc_init(struct snd_korg1212 *korg1212)
2092 {
2093         snd_card_ro_proc_new(korg1212->card, "korg1212", korg1212,
2094                              snd_korg1212_proc_read);
2095 }
2096 
2097 static int
2098 snd_korg1212_free(struct snd_korg1212 *korg1212)
2099 {
2100         snd_korg1212_TurnOffIdleMonitor(korg1212);
2101 
2102         if (korg1212->irq >= 0) {
2103                 snd_korg1212_DisableCardInterrupts(korg1212);
2104                 free_irq(korg1212->irq, korg1212);
2105                 korg1212->irq = -1;
2106         }
2107         
2108         if (korg1212->iobase != NULL) {
2109                 iounmap(korg1212->iobase);
2110                 korg1212->iobase = NULL;
2111         }
2112         
2113         pci_release_regions(korg1212->pci);
2114 
2115         // ----------------------------------------------------
2116         // free up memory resources used for the DSP download.
2117         // ----------------------------------------------------
2118         if (korg1212->dma_dsp.area) {
2119                 snd_dma_free_pages(&korg1212->dma_dsp);
2120                 korg1212->dma_dsp.area = NULL;
2121         }
2122 
2123 #ifndef K1212_LARGEALLOC
2124 
2125         // ------------------------------------------------------
2126         // free up memory resources used for the Play/Rec Buffers
2127         // ------------------------------------------------------
2128         if (korg1212->dma_play.area) {
2129                 snd_dma_free_pages(&korg1212->dma_play);
2130                 korg1212->dma_play.area = NULL;
2131         }
2132 
2133         if (korg1212->dma_rec.area) {
2134                 snd_dma_free_pages(&korg1212->dma_rec);
2135                 korg1212->dma_rec.area = NULL;
2136         }
2137 
2138 #endif
2139 
2140         // ----------------------------------------------------
2141         // free up memory resources used for the Shared Buffers
2142         // ----------------------------------------------------
2143         if (korg1212->dma_shared.area) {
2144                 snd_dma_free_pages(&korg1212->dma_shared);
2145                 korg1212->dma_shared.area = NULL;
2146         }
2147         
2148         pci_disable_device(korg1212->pci);
2149         kfree(korg1212);
2150         return 0;
2151 }
2152 
2153 static int snd_korg1212_dev_free(struct snd_device *device)
2154 {
2155         struct snd_korg1212 *korg1212 = device->device_data;
2156         K1212_DEBUG_PRINTK("K1212_DEBUG: Freeing device\n");
2157         return snd_korg1212_free(korg1212);
2158 }
2159 
2160 static int snd_korg1212_create(struct snd_card *card, struct pci_dev *pci,
2161                                struct snd_korg1212 **rchip)
2162 
2163 {
2164         int err, rc;
2165         unsigned int i;
2166         unsigned ioport_size, iomem_size, iomem2_size;
2167         struct snd_korg1212 * korg1212;
2168         const struct firmware *dsp_code;
2169 
2170         static struct snd_device_ops ops = {
2171                 .dev_free = snd_korg1212_dev_free,
2172         };
2173 
2174         * rchip = NULL;
2175         if ((err = pci_enable_device(pci)) < 0)
2176                 return err;
2177 
2178         korg1212 = kzalloc(sizeof(*korg1212), GFP_KERNEL);
2179         if (korg1212 == NULL) {
2180                 pci_disable_device(pci);
2181                 return -ENOMEM;
2182         }
2183 
2184         korg1212->card = card;
2185         korg1212->pci = pci;
2186 
2187         init_waitqueue_head(&korg1212->wait);
2188         spin_lock_init(&korg1212->lock);
2189         mutex_init(&korg1212->open_mutex);
2190         timer_setup(&korg1212->timer, snd_korg1212_timer_func, 0);
2191 
2192         korg1212->irq = -1;
2193         korg1212->clkSource = K1212_CLKIDX_Local;
2194         korg1212->clkRate = 44100;
2195         korg1212->inIRQ = 0;
2196         korg1212->running = 0;
2197         korg1212->opencnt = 0;
2198         korg1212->playcnt = 0;
2199         korg1212->setcnt = 0;
2200         korg1212->totalerrorcnt = 0;
2201         korg1212->playback_pid = -1;
2202         korg1212->capture_pid = -1;
2203         snd_korg1212_setCardState(korg1212, K1212_STATE_UNINITIALIZED);
2204         korg1212->idleMonitorOn = 0;
2205         korg1212->clkSrcRate = K1212_CLKIDX_LocalAt44_1K;
2206         korg1212->leftADCInSens = k1212MaxADCSens;
2207         korg1212->rightADCInSens = k1212MaxADCSens;
2208 
2209         for (i=0; i<kAudioChannels; i++)
2210                 korg1212->volumePhase[i] = 0;
2211 
2212         if ((err = pci_request_regions(pci, "korg1212")) < 0) {
2213                 kfree(korg1212);
2214                 pci_disable_device(pci);
2215                 return err;
2216         }
2217 
2218         korg1212->iomem = pci_resource_start(korg1212->pci, 0);
2219         korg1212->ioport = pci_resource_start(korg1212->pci, 1);
2220         korg1212->iomem2 = pci_resource_start(korg1212->pci, 2);
2221 
2222         iomem_size = pci_resource_len(korg1212->pci, 0);
2223         ioport_size = pci_resource_len(korg1212->pci, 1);
2224         iomem2_size = pci_resource_len(korg1212->pci, 2);
2225 
2226         K1212_DEBUG_PRINTK("K1212_DEBUG: resources:\n"
2227                    "    iomem = 0x%lx (%d)\n"
2228                    "    ioport  = 0x%lx (%d)\n"
2229                    "    iomem = 0x%lx (%d)\n"
2230                    "    [%s]\n",
2231                    korg1212->iomem, iomem_size,
2232                    korg1212->ioport, ioport_size,
2233                    korg1212->iomem2, iomem2_size,
2234                    stateName[korg1212->cardState]);
2235 
2236         if ((korg1212->iobase = ioremap(korg1212->iomem, iomem_size)) == NULL) {
2237                 snd_printk(KERN_ERR "korg1212: unable to remap memory region 0x%lx-0x%lx\n", korg1212->iomem,
2238                            korg1212->iomem + iomem_size - 1);
2239                 snd_korg1212_free(korg1212);
2240                 return -EBUSY;
2241         }
2242 
2243         err = request_irq(pci->irq, snd_korg1212_interrupt,
2244                           IRQF_SHARED,
2245                           KBUILD_MODNAME, korg1212);
2246 
2247         if (err) {
2248                 snd_printk(KERN_ERR "korg1212: unable to grab IRQ %d\n", pci->irq);
2249                 snd_korg1212_free(korg1212);
2250                 return -EBUSY;
2251         }
2252 
2253         korg1212->irq = pci->irq;
2254 
2255         pci_set_master(korg1212->pci);
2256 
2257         korg1212->statusRegPtr = (u32 __iomem *) (korg1212->iobase + STATUS_REG_OFFSET);
2258         korg1212->outDoorbellPtr = (u32 __iomem *) (korg1212->iobase + OUT_DOORBELL_OFFSET);
2259         korg1212->inDoorbellPtr = (u32 __iomem *) (korg1212->iobase + IN_DOORBELL_OFFSET);
2260         korg1212->mailbox0Ptr = (u32 __iomem *) (korg1212->iobase + MAILBOX0_OFFSET);
2261         korg1212->mailbox1Ptr = (u32 __iomem *) (korg1212->iobase + MAILBOX1_OFFSET);
2262         korg1212->mailbox2Ptr = (u32 __iomem *) (korg1212->iobase + MAILBOX2_OFFSET);
2263         korg1212->mailbox3Ptr = (u32 __iomem *) (korg1212->iobase + MAILBOX3_OFFSET);
2264         korg1212->controlRegPtr = (u32 __iomem *) (korg1212->iobase + PCI_CONTROL_OFFSET);
2265         korg1212->sensRegPtr = (u16 __iomem *) (korg1212->iobase + SENS_CONTROL_OFFSET);
2266         korg1212->idRegPtr = (u32 __iomem *) (korg1212->iobase + DEV_VEND_ID_OFFSET);
2267 
2268         K1212_DEBUG_PRINTK("K1212_DEBUG: card registers:\n"
2269                    "    Status register = 0x%p\n"
2270                    "    OutDoorbell     = 0x%p\n"
2271                    "    InDoorbell      = 0x%p\n"
2272                    "    Mailbox0        = 0x%p\n"
2273                    "    Mailbox1        = 0x%p\n"
2274                    "    Mailbox2        = 0x%p\n"
2275                    "    Mailbox3        = 0x%p\n"
2276                    "    ControlReg      = 0x%p\n"
2277                    "    SensReg         = 0x%p\n"
2278                    "    IDReg           = 0x%p\n"
2279                    "    [%s]\n",
2280                    korg1212->statusRegPtr,
2281                    korg1212->outDoorbellPtr,
2282                    korg1212->inDoorbellPtr,
2283                    korg1212->mailbox0Ptr,
2284                    korg1212->mailbox1Ptr,
2285                    korg1212->mailbox2Ptr,
2286                    korg1212->mailbox3Ptr,
2287                    korg1212->controlRegPtr,
2288                    korg1212->sensRegPtr,
2289                    korg1212->idRegPtr,
2290                    stateName[korg1212->cardState]);
2291 
2292         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
2293                                 sizeof(struct KorgSharedBuffer), &korg1212->dma_shared) < 0) {
2294                 snd_printk(KERN_ERR "korg1212: can not allocate shared buffer memory (%zd bytes)\n", sizeof(struct KorgSharedBuffer));
2295                 snd_korg1212_free(korg1212);
2296                 return -ENOMEM;
2297         }
2298         korg1212->sharedBufferPtr = (struct KorgSharedBuffer *)korg1212->dma_shared.area;
2299         korg1212->sharedBufferPhy = korg1212->dma_shared.addr;
2300 
2301         K1212_DEBUG_PRINTK("K1212_DEBUG: Shared Buffer Area = 0x%p (0x%08lx), %d bytes\n", korg1212->sharedBufferPtr, korg1212->sharedBufferPhy, sizeof(struct KorgSharedBuffer));
2302 
2303 #ifndef K1212_LARGEALLOC
2304 
2305         korg1212->DataBufsSize = sizeof(struct KorgAudioBuffer) * kNumBuffers;
2306 
2307         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
2308                                 korg1212->DataBufsSize, &korg1212->dma_play) < 0) {
2309                 snd_printk(KERN_ERR "korg1212: can not allocate play data buffer memory (%d bytes)\n", korg1212->DataBufsSize);
2310                 snd_korg1212_free(korg1212);
2311                 return -ENOMEM;
2312         }
2313         korg1212->playDataBufsPtr = (struct KorgAudioBuffer *)korg1212->dma_play.area;
2314         korg1212->PlayDataPhy = korg1212->dma_play.addr;
2315 
2316         K1212_DEBUG_PRINTK("K1212_DEBUG: Play Data Area = 0x%p (0x%08x), %d bytes\n",
2317                 korg1212->playDataBufsPtr, korg1212->PlayDataPhy, korg1212->DataBufsSize);
2318 
2319         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
2320                                 korg1212->DataBufsSize, &korg1212->dma_rec) < 0) {
2321                 snd_printk(KERN_ERR "korg1212: can not allocate record data buffer memory (%d bytes)\n", korg1212->DataBufsSize);
2322                 snd_korg1212_free(korg1212);
2323                 return -ENOMEM;
2324         }
2325         korg1212->recordDataBufsPtr = (struct KorgAudioBuffer *)korg1212->dma_rec.area;
2326         korg1212->RecDataPhy = korg1212->dma_rec.addr;
2327 
2328         K1212_DEBUG_PRINTK("K1212_DEBUG: Record Data Area = 0x%p (0x%08x), %d bytes\n",
2329                 korg1212->recordDataBufsPtr, korg1212->RecDataPhy, korg1212->DataBufsSize);
2330 
2331 #else // K1212_LARGEALLOC
2332 
2333         korg1212->recordDataBufsPtr = korg1212->sharedBufferPtr->recordDataBufs;
2334         korg1212->playDataBufsPtr = korg1212->sharedBufferPtr->playDataBufs;
2335         korg1212->PlayDataPhy = (u32) &((struct KorgSharedBuffer *) korg1212->sharedBufferPhy)->playDataBufs;
2336         korg1212->RecDataPhy  = (u32) &((struct KorgSharedBuffer *) korg1212->sharedBufferPhy)->recordDataBufs;
2337 
2338 #endif // K1212_LARGEALLOC
2339 
2340         korg1212->VolumeTablePhy = korg1212->sharedBufferPhy +
2341                 offsetof(struct KorgSharedBuffer, volumeData);
2342         korg1212->RoutingTablePhy = korg1212->sharedBufferPhy +
2343                 offsetof(struct KorgSharedBuffer, routeData);
2344         korg1212->AdatTimeCodePhy = korg1212->sharedBufferPhy +
2345                 offsetof(struct KorgSharedBuffer, AdatTimeCode);
2346 
2347         err = request_firmware(&dsp_code, "korg/k1212.dsp", &pci->dev);
2348         if (err < 0) {
2349                 snd_printk(KERN_ERR "firmware not available\n");
2350                 snd_korg1212_free(korg1212);
2351                 return err;
2352         }
2353 
2354         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
2355                                 dsp_code->size, &korg1212->dma_dsp) < 0) {
2356                 snd_printk(KERN_ERR "korg1212: cannot allocate dsp code memory (%zd bytes)\n", dsp_code->size);
2357                 snd_korg1212_free(korg1212);
2358                 release_firmware(dsp_code);
2359                 return -ENOMEM;
2360         }
2361 
2362         K1212_DEBUG_PRINTK("K1212_DEBUG: DSP Code area = 0x%p (0x%08x) %d bytes [%s]\n",
2363                    korg1212->dma_dsp.area, korg1212->dma_dsp.addr, dsp_code->size,
2364                    stateName[korg1212->cardState]);
2365 
2366         memcpy(korg1212->dma_dsp.area, dsp_code->data, dsp_code->size);
2367 
2368         release_firmware(dsp_code);
2369 
2370         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_RebootCard, 0, 0, 0, 0);
2371 
2372         if (rc)
2373                 K1212_DEBUG_PRINTK("K1212_DEBUG: Reboot Card - RC = %d [%s]\n", rc, stateName[korg1212->cardState]);
2374 
2375         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, korg1212, &ops)) < 0) {
2376                 snd_korg1212_free(korg1212);
2377                 return err;
2378         }
2379         
2380         snd_korg1212_EnableCardInterrupts(korg1212);
2381 
2382         mdelay(CARD_BOOT_DELAY_IN_MS);
2383 
2384         if (snd_korg1212_downloadDSPCode(korg1212))
2385                 return -EBUSY;
2386 
2387         K1212_DEBUG_PRINTK("korg1212: dspMemPhy = %08x U[%08x], "
2388                "PlayDataPhy = %08x L[%08x]\n"
2389                "korg1212: RecDataPhy = %08x L[%08x], "
2390                "VolumeTablePhy = %08x L[%08x]\n"
2391                "korg1212: RoutingTablePhy = %08x L[%08x], "
2392                "AdatTimeCodePhy = %08x L[%08x]\n",
2393                (int)korg1212->dma_dsp.addr,    UpperWordSwap(korg1212->dma_dsp.addr),
2394                korg1212->PlayDataPhy,     LowerWordSwap(korg1212->PlayDataPhy),
2395                korg1212->RecDataPhy,      LowerWordSwap(korg1212->RecDataPhy),
2396                korg1212->VolumeTablePhy,  LowerWordSwap(korg1212->VolumeTablePhy),
2397                korg1212->RoutingTablePhy, LowerWordSwap(korg1212->RoutingTablePhy),
2398                korg1212->AdatTimeCodePhy, LowerWordSwap(korg1212->AdatTimeCodePhy));
2399 
2400         if ((err = snd_pcm_new(korg1212->card, "korg1212", 0, 1, 1, &korg1212->pcm)) < 0)
2401                 return err;
2402 
2403         korg1212->pcm->private_data = korg1212;
2404         korg1212->pcm->private_free = snd_korg1212_free_pcm;
2405         strcpy(korg1212->pcm->name, "korg1212");
2406 
2407         snd_pcm_set_ops(korg1212->pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_korg1212_playback_ops);
2408         
2409         snd_pcm_set_ops(korg1212->pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_korg1212_capture_ops);
2410 
2411         korg1212->pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
2412 
2413         for (i = 0; i < ARRAY_SIZE(snd_korg1212_controls); i++) {
2414                 err = snd_ctl_add(korg1212->card, snd_ctl_new1(&snd_korg1212_controls[i], korg1212));
2415                 if (err < 0)
2416                         return err;
2417         }
2418 
2419         snd_korg1212_proc_init(korg1212);
2420         
2421         * rchip = korg1212;
2422         return 0;
2423 
2424 }
2425 
2426 /*
2427  * Card initialisation
2428  */
2429 
2430 static int
2431 snd_korg1212_probe(struct pci_dev *pci,
2432                 const struct pci_device_id *pci_id)
2433 {
2434         static int dev;
2435         struct snd_korg1212 *korg1212;
2436         struct snd_card *card;
2437         int err;
2438 
2439         if (dev >= SNDRV_CARDS) {
2440                 return -ENODEV;
2441         }
2442         if (!enable[dev]) {
2443                 dev++;
2444                 return -ENOENT;
2445         }
2446         err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
2447                            0, &card);
2448         if (err < 0)
2449                 return err;
2450 
2451         if ((err = snd_korg1212_create(card, pci, &korg1212)) < 0) {
2452                 snd_card_free(card);
2453                 return err;
2454         }
2455 
2456         strcpy(card->driver, "korg1212");
2457         strcpy(card->shortname, "korg1212");
2458         sprintf(card->longname, "%s at 0x%lx, irq %d", card->shortname,
2459                 korg1212->iomem, korg1212->irq);
2460 
2461         K1212_DEBUG_PRINTK("K1212_DEBUG: %s\n", card->longname);
2462 
2463         if ((err = snd_card_register(card)) < 0) {
2464                 snd_card_free(card);
2465                 return err;
2466         }
2467         pci_set_drvdata(pci, card);
2468         dev++;
2469         return 0;
2470 }
2471 
2472 static void snd_korg1212_remove(struct pci_dev *pci)
2473 {
2474         snd_card_free(pci_get_drvdata(pci));
2475 }
2476 
2477 static struct pci_driver korg1212_driver = {
2478         .name = KBUILD_MODNAME,
2479         .id_table = snd_korg1212_ids,
2480         .probe = snd_korg1212_probe,
2481         .remove = snd_korg1212_remove,
2482 };
2483 
2484 module_pci_driver(korg1212_driver);
2485 

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