Version:  2.0.40 2.2.26 2.4.37 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17

Linux/sound/pci/korg1212/korg1212.c

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