xref: /linux/sound/pci/korg1212/korg1212.c (revision f3d9478b2ce468c3115b02ecae7e975990697f15)
1 /*
2  *   Driver for the Korg 1212 IO PCI card
3  *
4  *	Copyright (c) 2001 Haroldo Gamal <gamal@alternex.com.br>
5  *
6  *   This program is free software; you can redistribute it and/or modify
7  *   it under the terms of the GNU General Public License as published by
8  *   the Free Software Foundation; either version 2 of the License, or
9  *   (at your option) any later version.
10  *
11  *   This program is distributed in the hope that it will be useful,
12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  *   GNU General Public License for more details.
15  *
16  *   You should have received a copy of the GNU General Public License
17  *   along with this program; if not, write to the Free Software
18  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
19  *
20  */
21 
22 #include <sound/driver.h>
23 #include <linux/delay.h>
24 #include <linux/init.h>
25 #include <linux/interrupt.h>
26 #include <linux/pci.h>
27 #include <linux/slab.h>
28 #include <linux/wait.h>
29 #include <linux/moduleparam.h>
30 #include <linux/mutex.h>
31 
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 COMMAND_ACK_DELAY    13        // number of RTC ticks to wait for an acknowledgement
166                                         //    from the card after sending a command.
167 #define INTERCOMMAND_DELAY   40
168 #define MAX_COMMAND_RETRIES  5         // maximum number of times the driver will attempt
169                                        //    to send a command before giving up.
170 #define COMMAND_ACK_MASK     0x8000    // the MSB is set in the command acknowledgment from
171                                         //    the card.
172 #define DOORBELL_VAL_MASK    0x00FF    // the doorbell value is one byte
173 
174 #define CARD_BOOT_DELAY_IN_MS  10
175 #define CARD_BOOT_TIMEOUT      10
176 #define DSP_BOOT_DELAY_IN_MS   200
177 
178 #define kNumBuffers		8
179 #define k1212MaxCards		4
180 #define k1212NumWaveDevices	6
181 #define k16BitChannels		10
182 #define k32BitChannels		2
183 #define kAudioChannels		(k16BitChannels + k32BitChannels)
184 #define kPlayBufferFrames	1024
185 
186 #define K1212_ANALOG_CHANNELS	2
187 #define K1212_SPDIF_CHANNELS	2
188 #define K1212_ADAT_CHANNELS	8
189 #define K1212_CHANNELS		(K1212_ADAT_CHANNELS + K1212_ANALOG_CHANNELS)
190 #define K1212_MIN_CHANNELS	1
191 #define K1212_MAX_CHANNELS	K1212_CHANNELS
192 #define K1212_FRAME_SIZE        (sizeof(struct KorgAudioFrame))
193 #define K1212_MAX_SAMPLES	(kPlayBufferFrames*kNumBuffers)
194 #define K1212_PERIODS		(kNumBuffers)
195 #define K1212_PERIOD_BYTES	(K1212_FRAME_SIZE*kPlayBufferFrames)
196 #define K1212_BUF_SIZE          (K1212_PERIOD_BYTES*kNumBuffers)
197 #define K1212_ANALOG_BUF_SIZE	(K1212_ANALOG_CHANNELS * 2 * kPlayBufferFrames * kNumBuffers)
198 #define K1212_SPDIF_BUF_SIZE	(K1212_SPDIF_CHANNELS * 3 * kPlayBufferFrames * kNumBuffers)
199 #define K1212_ADAT_BUF_SIZE	(K1212_ADAT_CHANNELS * 2 * kPlayBufferFrames * kNumBuffers)
200 #define K1212_MAX_BUF_SIZE	(K1212_ANALOG_BUF_SIZE + K1212_ADAT_BUF_SIZE)
201 
202 #define k1212MinADCSens     0x7f
203 #define k1212MaxADCSens     0x00
204 #define k1212MaxVolume      0x7fff
205 #define k1212MaxWaveVolume  0xffff
206 #define k1212MinVolume      0x0000
207 #define k1212MaxVolInverted 0x8000
208 
209 // -----------------------------------------------------------------
210 // the following bits are used for controlling interrupts in the
211 // interrupt control/status reg
212 // -----------------------------------------------------------------
213 #define  PCI_INT_ENABLE_BIT               0x00000100
214 #define  PCI_DOORBELL_INT_ENABLE_BIT      0x00000200
215 #define  LOCAL_INT_ENABLE_BIT             0x00010000
216 #define  LOCAL_DOORBELL_INT_ENABLE_BIT    0x00020000
217 #define  LOCAL_DMA1_INT_ENABLE_BIT        0x00080000
218 
219 // -----------------------------------------------------------------
220 // the following bits are defined for the PCI command register
221 // -----------------------------------------------------------------
222 #define  PCI_CMD_MEM_SPACE_ENABLE_BIT     0x0002
223 #define  PCI_CMD_IO_SPACE_ENABLE_BIT      0x0001
224 #define  PCI_CMD_BUS_MASTER_ENABLE_BIT    0x0004
225 
226 // -----------------------------------------------------------------
227 // the following bits are defined for the PCI status register
228 // -----------------------------------------------------------------
229 #define  PCI_STAT_PARITY_ERROR_BIT        0x8000
230 #define  PCI_STAT_SYSTEM_ERROR_BIT        0x4000
231 #define  PCI_STAT_MASTER_ABORT_RCVD_BIT   0x2000
232 #define  PCI_STAT_TARGET_ABORT_RCVD_BIT   0x1000
233 #define  PCI_STAT_TARGET_ABORT_SENT_BIT   0x0800
234 
235 // ------------------------------------------------------------------------
236 // the following constants are used in setting the 1212 I/O card's input
237 // sensitivity.
238 // ------------------------------------------------------------------------
239 #define  SET_SENS_LOCALINIT_BITPOS        15
240 #define  SET_SENS_DATA_BITPOS             10
241 #define  SET_SENS_CLOCK_BITPOS            8
242 #define  SET_SENS_LOADSHIFT_BITPOS        0
243 
244 #define  SET_SENS_LEFTCHANID              0x00
245 #define  SET_SENS_RIGHTCHANID             0x01
246 
247 #define  K1212SENSUPDATE_DELAY_IN_MS      50
248 
249 // --------------------------------------------------------------------------
250 // WaitRTCTicks
251 //
252 //    This function waits the specified number of real time clock ticks.
253 //    According to the DDK, each tick is ~0.8 microseconds.
254 //    The defines following the function declaration can be used for the
255 //    numTicksToWait parameter.
256 // --------------------------------------------------------------------------
257 #define ONE_RTC_TICK         1
258 #define SENSCLKPULSE_WIDTH   4
259 #define LOADSHIFT_DELAY      4
260 #define INTERCOMMAND_DELAY  40
261 #define STOPCARD_DELAY      300        // max # RTC ticks for the card to stop once we write
262                                        //    the command register.  (could be up to 180 us)
263 #define COMMAND_ACK_DELAY   13         // number of RTC ticks to wait for an acknowledgement
264                                        //    from the card after sending a command.
265 
266 #include "korg1212-firmware.h"
267 
268 enum ClockSourceIndex {
269    K1212_CLKIDX_AdatAt44_1K = 0,    // selects source as ADAT at 44.1 kHz
270    K1212_CLKIDX_AdatAt48K,          // selects source as ADAT at 48 kHz
271    K1212_CLKIDX_WordAt44_1K,        // selects source as S/PDIF at 44.1 kHz
272    K1212_CLKIDX_WordAt48K,          // selects source as S/PDIF at 48 kHz
273    K1212_CLKIDX_LocalAt44_1K,       // selects source as local clock at 44.1 kHz
274    K1212_CLKIDX_LocalAt48K,         // selects source as local clock at 48 kHz
275    K1212_CLKIDX_Invalid             // used to check validity of the index
276 };
277 
278 enum ClockSourceType {
279    K1212_CLKIDX_Adat = 0,    // selects source as ADAT
280    K1212_CLKIDX_Word,        // selects source as S/PDIF
281    K1212_CLKIDX_Local        // selects source as local clock
282 };
283 
284 struct KorgAudioFrame {
285 	u16 frameData16[k16BitChannels]; /* channels 0-9 use 16 bit samples */
286 	u32 frameData32[k32BitChannels]; /* channels 10-11 use 32 bits - only 20 are sent across S/PDIF */
287 	u32 timeCodeVal; /* holds the ADAT timecode value */
288 };
289 
290 struct KorgAudioBuffer {
291 	struct KorgAudioFrame  bufferData[kPlayBufferFrames];     /* buffer definition */
292 };
293 
294 struct KorgSharedBuffer {
295 #ifdef K1212_LARGEALLOC
296    struct KorgAudioBuffer   playDataBufs[kNumBuffers];
297    struct KorgAudioBuffer   recordDataBufs[kNumBuffers];
298 #endif
299    short             volumeData[kAudioChannels];
300    u32               cardCommand;
301    u16               routeData [kAudioChannels];
302    u32               AdatTimeCode;                 // ADAT timecode value
303 };
304 
305 struct SensBits {
306    union {
307       struct {
308          unsigned int leftChanVal:8;
309          unsigned int leftChanId:8;
310       } v;
311       u16  leftSensBits;
312    } l;
313    union {
314       struct {
315          unsigned int rightChanVal:8;
316          unsigned int rightChanId:8;
317       } v;
318       u16  rightSensBits;
319    } r;
320 };
321 
322 struct snd_korg1212 {
323         struct snd_card *card;
324         struct pci_dev *pci;
325         struct snd_pcm *pcm;
326         int irq;
327 
328         spinlock_t    lock;
329 	struct mutex open_mutex;
330 
331 	struct timer_list timer;	/* timer callback for checking ack of stop request */
332 	int stop_pending_cnt;		/* counter for stop pending check */
333 
334         wait_queue_head_t wait;
335 
336         unsigned long iomem;
337         unsigned long ioport;
338 	unsigned long iomem2;
339         unsigned long irqcount;
340         unsigned long inIRQ;
341         void __iomem *iobase;
342 
343 	struct snd_dma_buffer dma_dsp;
344         struct snd_dma_buffer dma_play;
345         struct snd_dma_buffer dma_rec;
346 	struct snd_dma_buffer dma_shared;
347 
348         u32 dspCodeSize;
349 
350 	u32 DataBufsSize;
351 
352         struct KorgAudioBuffer  * playDataBufsPtr;
353         struct KorgAudioBuffer  * recordDataBufsPtr;
354 
355 	struct KorgSharedBuffer * sharedBufferPtr;
356 
357 	u32 RecDataPhy;
358 	u32 PlayDataPhy;
359 	unsigned long sharedBufferPhy;
360 	u32 VolumeTablePhy;
361 	u32 RoutingTablePhy;
362 	u32 AdatTimeCodePhy;
363 
364         u32 __iomem * statusRegPtr;	     // address of the interrupt status/control register
365         u32 __iomem * outDoorbellPtr;	     // address of the host->card doorbell register
366         u32 __iomem * inDoorbellPtr;	     // address of the card->host doorbell register
367         u32 __iomem * mailbox0Ptr;	     // address of mailbox 0 on the card
368         u32 __iomem * mailbox1Ptr;	     // address of mailbox 1 on the card
369         u32 __iomem * mailbox2Ptr;	     // address of mailbox 2 on the card
370         u32 __iomem * mailbox3Ptr;	     // address of mailbox 3 on the card
371         u32 __iomem * controlRegPtr;	     // address of the EEPROM, PCI, I/O, Init ctrl reg
372         u16 __iomem * sensRegPtr;	     // address of the sensitivity setting register
373         u32 __iomem * idRegPtr;		     // address of the device and vendor ID registers
374 
375         size_t periodsize;
376 	int channels;
377         int currentBuffer;
378 
379         struct snd_pcm_substream *playback_substream;
380         struct snd_pcm_substream *capture_substream;
381 
382 	pid_t capture_pid;
383 	pid_t playback_pid;
384 
385  	enum CardState cardState;
386         int running;
387         int idleMonitorOn;           // indicates whether the card is in idle monitor mode.
388         u32 cmdRetryCount;           // tracks how many times we have retried sending to the card.
389 
390         enum ClockSourceIndex clkSrcRate; // sample rate and clock source
391 
392         enum ClockSourceType clkSource;   // clock source
393         int clkRate;                 // clock rate
394 
395         int volumePhase[kAudioChannels];
396 
397         u16 leftADCInSens;           // ADC left channel input sensitivity
398         u16 rightADCInSens;          // ADC right channel input sensitivity
399 
400 	int opencnt;		     // Open/Close count
401 	int setcnt;		     // SetupForPlay count
402 	int playcnt;		     // TriggerPlay count
403 	int errorcnt;		     // Error Count
404 	unsigned long totalerrorcnt; // Total Error Count
405 
406 	int dsp_is_loaded;
407 	int dsp_stop_is_processed;
408 
409 };
410 
411 MODULE_DESCRIPTION("korg1212");
412 MODULE_LICENSE("GPL");
413 MODULE_SUPPORTED_DEVICE("{{KORG,korg1212}}");
414 
415 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;     /* Index 0-MAX */
416 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	   /* ID for this card */
417 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */
418 
419 module_param_array(index, int, NULL, 0444);
420 MODULE_PARM_DESC(index, "Index value for Korg 1212 soundcard.");
421 module_param_array(id, charp, NULL, 0444);
422 MODULE_PARM_DESC(id, "ID string for Korg 1212 soundcard.");
423 module_param_array(enable, bool, NULL, 0444);
424 MODULE_PARM_DESC(enable, "Enable Korg 1212 soundcard.");
425 MODULE_AUTHOR("Haroldo Gamal <gamal@alternex.com.br>");
426 
427 static struct pci_device_id snd_korg1212_ids[] __devinitdata = {
428 	{
429 		.vendor	   = 0x10b5,
430 		.device	   = 0x906d,
431 		.subvendor = PCI_ANY_ID,
432 		.subdevice = PCI_ANY_ID,
433 	},
434 	{ 0, },
435 };
436 
437 MODULE_DEVICE_TABLE(pci, snd_korg1212_ids);
438 
439 static char *stateName[] = {
440 	"Non-existent",
441 	"Uninitialized",
442 	"DSP download in process",
443 	"DSP download complete",
444 	"Ready",
445 	"Open",
446 	"Setup for play",
447 	"Playing",
448 	"Monitor mode on",
449 	"Calibrating",
450 	"Invalid"
451 };
452 
453 static char *clockSourceTypeName[] = { "ADAT", "S/PDIF", "local" };
454 
455 static char *clockSourceName[] = {
456 	"ADAT at 44.1 kHz",
457 	"ADAT at 48 kHz",
458 	"S/PDIF at 44.1 kHz",
459 	"S/PDIF at 48 kHz",
460 	"local clock at 44.1 kHz",
461 	"local clock at 48 kHz"
462 };
463 
464 static char *channelName[] = {
465 	"ADAT-1",
466 	"ADAT-2",
467 	"ADAT-3",
468 	"ADAT-4",
469 	"ADAT-5",
470 	"ADAT-6",
471 	"ADAT-7",
472 	"ADAT-8",
473 	"Analog-L",
474 	"Analog-R",
475 	"SPDIF-L",
476 	"SPDIF-R",
477 };
478 
479 static u16 ClockSourceSelector[] = {
480 	0x8000,   // selects source as ADAT at 44.1 kHz
481 	0x0000,   // selects source as ADAT at 48 kHz
482 	0x8001,   // selects source as S/PDIF at 44.1 kHz
483 	0x0001,   // selects source as S/PDIF at 48 kHz
484 	0x8002,   // selects source as local clock at 44.1 kHz
485 	0x0002    // selects source as local clock at 48 kHz
486 };
487 
488 union swap_u32 { unsigned char c[4]; u32 i; };
489 
490 #ifdef SNDRV_BIG_ENDIAN
491 static u32 LowerWordSwap(u32 swappee)
492 #else
493 static u32 UpperWordSwap(u32 swappee)
494 #endif
495 {
496    union swap_u32 retVal, swapper;
497 
498    swapper.i = swappee;
499    retVal.c[2] = swapper.c[3];
500    retVal.c[3] = swapper.c[2];
501    retVal.c[1] = swapper.c[1];
502    retVal.c[0] = swapper.c[0];
503 
504    return retVal.i;
505 }
506 
507 #ifdef SNDRV_BIG_ENDIAN
508 static u32 UpperWordSwap(u32 swappee)
509 #else
510 static u32 LowerWordSwap(u32 swappee)
511 #endif
512 {
513    union swap_u32 retVal, swapper;
514 
515    swapper.i = swappee;
516    retVal.c[2] = swapper.c[2];
517    retVal.c[3] = swapper.c[3];
518    retVal.c[1] = swapper.c[0];
519    retVal.c[0] = swapper.c[1];
520 
521    return retVal.i;
522 }
523 
524 #define SetBitInWord(theWord,bitPosition)       (*theWord) |= (0x0001 << bitPosition)
525 #define SetBitInDWord(theWord,bitPosition)      (*theWord) |= (0x00000001 << bitPosition)
526 #define ClearBitInWord(theWord,bitPosition)     (*theWord) &= ~(0x0001 << bitPosition)
527 #define ClearBitInDWord(theWord,bitPosition)    (*theWord) &= ~(0x00000001 << bitPosition)
528 
529 static int snd_korg1212_Send1212Command(struct snd_korg1212 *korg1212,
530 					enum korg1212_dbcnst doorbellVal,
531 					u32 mailBox0Val, u32 mailBox1Val,
532 					u32 mailBox2Val, u32 mailBox3Val)
533 {
534         u32 retryCount;
535         u16 mailBox3Lo;
536 	int rc = K1212_CMDRET_Success;
537 
538         if (!korg1212->outDoorbellPtr) {
539 		K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: CardUninitialized\n");
540                 return K1212_CMDRET_CardUninitialized;
541 	}
542 
543 	K1212_DEBUG_PRINTK("K1212_DEBUG: Card <- 0x%08x 0x%08x [%s]\n",
544 			   doorbellVal, mailBox0Val, stateName[korg1212->cardState]);
545         for (retryCount = 0; retryCount < MAX_COMMAND_RETRIES; retryCount++) {
546 		writel(mailBox3Val, korg1212->mailbox3Ptr);
547                 writel(mailBox2Val, korg1212->mailbox2Ptr);
548                 writel(mailBox1Val, korg1212->mailbox1Ptr);
549                 writel(mailBox0Val, korg1212->mailbox0Ptr);
550                 writel(doorbellVal, korg1212->outDoorbellPtr);  // interrupt the card
551 
552                 // --------------------------------------------------------------
553                 // the reboot command will not give an acknowledgement.
554                 // --------------------------------------------------------------
555                 if ( doorbellVal == K1212_DB_RebootCard ||
556                 	doorbellVal == K1212_DB_BootFromDSPPage4 ||
557                         doorbellVal == K1212_DB_StartDSPDownload ) {
558                         rc = K1212_CMDRET_Success;
559                         break;
560                 }
561 
562                 // --------------------------------------------------------------
563                 // See if the card acknowledged the command.  Wait a bit, then
564                 // read in the low word of mailbox3.  If the MSB is set and the
565                 // low byte is equal to the doorbell value, then it ack'd.
566                 // --------------------------------------------------------------
567                 udelay(COMMAND_ACK_DELAY);
568                 mailBox3Lo = readl(korg1212->mailbox3Ptr);
569                 if (mailBox3Lo & COMMAND_ACK_MASK) {
570                 	if ((mailBox3Lo & DOORBELL_VAL_MASK) == (doorbellVal & DOORBELL_VAL_MASK)) {
571 				K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: Card <- Success\n");
572                                 rc = K1212_CMDRET_Success;
573 				break;
574                         }
575                 }
576 	}
577         korg1212->cmdRetryCount += retryCount;
578 
579 	if (retryCount >= MAX_COMMAND_RETRIES) {
580 		K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: Card <- NoAckFromCard\n");
581         	rc = K1212_CMDRET_NoAckFromCard;
582 	}
583 
584 	return rc;
585 }
586 
587 /* spinlock already held */
588 static void snd_korg1212_SendStop(struct snd_korg1212 *korg1212)
589 {
590 	if (! korg1212->stop_pending_cnt) {
591 		korg1212->sharedBufferPtr->cardCommand = 0xffffffff;
592 		/* program the timer */
593 		korg1212->stop_pending_cnt = HZ;
594 		korg1212->timer.expires = jiffies + 1;
595 		add_timer(&korg1212->timer);
596 	}
597 }
598 
599 static void snd_korg1212_SendStopAndWait(struct snd_korg1212 *korg1212)
600 {
601 	unsigned long flags;
602 	spin_lock_irqsave(&korg1212->lock, flags);
603 	korg1212->dsp_stop_is_processed = 0;
604 	snd_korg1212_SendStop(korg1212);
605 	spin_unlock_irqrestore(&korg1212->lock, flags);
606 	wait_event_timeout(korg1212->wait, korg1212->dsp_stop_is_processed, (HZ * 3) / 2);
607 }
608 
609 /* timer callback for checking the ack of stop request */
610 static void snd_korg1212_timer_func(unsigned long data)
611 {
612         struct snd_korg1212 *korg1212 = (struct snd_korg1212 *) data;
613 	unsigned long flags;
614 
615 	spin_lock_irqsave(&korg1212->lock, flags);
616 	if (korg1212->sharedBufferPtr->cardCommand == 0) {
617 		/* ack'ed */
618 		korg1212->stop_pending_cnt = 0;
619 		korg1212->dsp_stop_is_processed = 1;
620 		wake_up(&korg1212->wait);
621 		K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: Stop ack'ed [%s]\n",
622 					   stateName[korg1212->cardState]);
623 	} else {
624 		if (--korg1212->stop_pending_cnt > 0) {
625 			/* reprogram timer */
626 			korg1212->timer.expires = jiffies + 1;
627 			add_timer(&korg1212->timer);
628 		} else {
629 			snd_printd("korg1212_timer_func timeout\n");
630 			korg1212->sharedBufferPtr->cardCommand = 0;
631 			korg1212->dsp_stop_is_processed = 1;
632 			wake_up(&korg1212->wait);
633 			K1212_DEBUG_PRINTK("K1212_DEBUG: Stop timeout [%s]\n",
634 					   stateName[korg1212->cardState]);
635 		}
636 	}
637 	spin_unlock_irqrestore(&korg1212->lock, flags);
638 }
639 
640 static int snd_korg1212_TurnOnIdleMonitor(struct snd_korg1212 *korg1212)
641 {
642 	unsigned long flags;
643 	int rc;
644 
645         udelay(INTERCOMMAND_DELAY);
646 	spin_lock_irqsave(&korg1212->lock, flags);
647         korg1212->idleMonitorOn = 1;
648         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SelectPlayMode,
649 					  K1212_MODE_MonitorOn, 0, 0, 0);
650         spin_unlock_irqrestore(&korg1212->lock, flags);
651 	return rc;
652 }
653 
654 static void snd_korg1212_TurnOffIdleMonitor(struct snd_korg1212 *korg1212)
655 {
656         if (korg1212->idleMonitorOn) {
657 		snd_korg1212_SendStopAndWait(korg1212);
658                 korg1212->idleMonitorOn = 0;
659         }
660 }
661 
662 static inline void snd_korg1212_setCardState(struct snd_korg1212 * korg1212, enum CardState csState)
663 {
664         korg1212->cardState = csState;
665 }
666 
667 static int snd_korg1212_OpenCard(struct snd_korg1212 * korg1212)
668 {
669 	K1212_DEBUG_PRINTK("K1212_DEBUG: OpenCard [%s] %d\n",
670 			   stateName[korg1212->cardState], korg1212->opencnt);
671 	mutex_lock(&korg1212->open_mutex);
672         if (korg1212->opencnt++ == 0) {
673 		snd_korg1212_TurnOffIdleMonitor(korg1212);
674 		snd_korg1212_setCardState(korg1212, K1212_STATE_OPEN);
675 	}
676 
677 	mutex_unlock(&korg1212->open_mutex);
678         return 1;
679 }
680 
681 static int snd_korg1212_CloseCard(struct snd_korg1212 * korg1212)
682 {
683 	K1212_DEBUG_PRINTK("K1212_DEBUG: CloseCard [%s] %d\n",
684 			   stateName[korg1212->cardState], korg1212->opencnt);
685 
686 	mutex_lock(&korg1212->open_mutex);
687 	if (--(korg1212->opencnt)) {
688 		mutex_unlock(&korg1212->open_mutex);
689 		return 0;
690 	}
691 
692         if (korg1212->cardState == K1212_STATE_SETUP) {
693                 int rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SelectPlayMode,
694                                 K1212_MODE_StopPlay, 0, 0, 0);
695 		if (rc)
696 			K1212_DEBUG_PRINTK("K1212_DEBUG: CloseCard - RC = %d [%s]\n",
697 					   rc, stateName[korg1212->cardState]);
698 		if (rc != K1212_CMDRET_Success) {
699 			mutex_unlock(&korg1212->open_mutex);
700                         return 0;
701 		}
702         } else if (korg1212->cardState > K1212_STATE_SETUP) {
703 		snd_korg1212_SendStopAndWait(korg1212);
704         }
705 
706         if (korg1212->cardState > K1212_STATE_READY) {
707 		snd_korg1212_TurnOnIdleMonitor(korg1212);
708                 snd_korg1212_setCardState(korg1212, K1212_STATE_READY);
709 	}
710 
711 	mutex_unlock(&korg1212->open_mutex);
712         return 0;
713 }
714 
715 /* spinlock already held */
716 static int snd_korg1212_SetupForPlay(struct snd_korg1212 * korg1212)
717 {
718 	int rc;
719 
720 	K1212_DEBUG_PRINTK("K1212_DEBUG: SetupForPlay [%s] %d\n",
721 			   stateName[korg1212->cardState], korg1212->setcnt);
722 
723         if (korg1212->setcnt++)
724 		return 0;
725 
726         snd_korg1212_setCardState(korg1212, K1212_STATE_SETUP);
727         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SelectPlayMode,
728                                         K1212_MODE_SetupPlay, 0, 0, 0);
729 	if (rc)
730 		K1212_DEBUG_PRINTK("K1212_DEBUG: SetupForPlay - RC = %d [%s]\n",
731 				   rc, stateName[korg1212->cardState]);
732         if (rc != K1212_CMDRET_Success) {
733                 return 1;
734         }
735         return 0;
736 }
737 
738 /* spinlock already held */
739 static int snd_korg1212_TriggerPlay(struct snd_korg1212 * korg1212)
740 {
741 	int rc;
742 
743 	K1212_DEBUG_PRINTK("K1212_DEBUG: TriggerPlay [%s] %d\n",
744 			   stateName[korg1212->cardState], korg1212->playcnt);
745 
746         if (korg1212->playcnt++)
747 		return 0;
748 
749         snd_korg1212_setCardState(korg1212, K1212_STATE_PLAYING);
750         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_TriggerPlay, 0, 0, 0, 0);
751 	if (rc)
752 		K1212_DEBUG_PRINTK("K1212_DEBUG: TriggerPlay - RC = %d [%s]\n",
753 				   rc, stateName[korg1212->cardState]);
754         if (rc != K1212_CMDRET_Success) {
755                 return 1;
756         }
757         return 0;
758 }
759 
760 /* spinlock already held */
761 static int snd_korg1212_StopPlay(struct snd_korg1212 * korg1212)
762 {
763 	K1212_DEBUG_PRINTK("K1212_DEBUG: StopPlay [%s] %d\n",
764 			   stateName[korg1212->cardState], korg1212->playcnt);
765 
766         if (--(korg1212->playcnt))
767 		return 0;
768 
769 	korg1212->setcnt = 0;
770 
771         if (korg1212->cardState != K1212_STATE_ERRORSTOP)
772 		snd_korg1212_SendStop(korg1212);
773 
774 	snd_korg1212_setCardState(korg1212, K1212_STATE_OPEN);
775         return 0;
776 }
777 
778 static void snd_korg1212_EnableCardInterrupts(struct snd_korg1212 * korg1212)
779 {
780 	writel(PCI_INT_ENABLE_BIT            |
781 	       PCI_DOORBELL_INT_ENABLE_BIT   |
782 	       LOCAL_INT_ENABLE_BIT          |
783 	       LOCAL_DOORBELL_INT_ENABLE_BIT |
784 	       LOCAL_DMA1_INT_ENABLE_BIT,
785 	       korg1212->statusRegPtr);
786 }
787 
788 #if 0 /* not used */
789 
790 static int snd_korg1212_SetMonitorMode(struct snd_korg1212 *korg1212,
791 				       enum MonitorModeSelector mode)
792 {
793 	K1212_DEBUG_PRINTK("K1212_DEBUG: SetMonitorMode [%s]\n",
794 			   stateName[korg1212->cardState]);
795 
796         switch (mode) {
797 	case K1212_MONMODE_Off:
798 		if (korg1212->cardState != K1212_STATE_MONITOR)
799 			return 0;
800 		else {
801 			snd_korg1212_SendStopAndWait(korg1212);
802 			snd_korg1212_setCardState(korg1212, K1212_STATE_OPEN);
803 		}
804 		break;
805 
806 	case K1212_MONMODE_On:
807 		if (korg1212->cardState != K1212_STATE_OPEN)
808 			return 0;
809 		else {
810 			int rc;
811 			snd_korg1212_setCardState(korg1212, K1212_STATE_MONITOR);
812 			rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SelectPlayMode,
813 							  K1212_MODE_MonitorOn, 0, 0, 0);
814 			if (rc != K1212_CMDRET_Success)
815 				return 0;
816 		}
817 		break;
818 
819 	default:
820 		return 0;
821         }
822 
823         return 1;
824 }
825 
826 #endif /* not used */
827 
828 static inline int snd_korg1212_use_is_exclusive(struct snd_korg1212 *korg1212)
829 {
830 	if (korg1212->playback_pid != korg1212->capture_pid &&
831 	    korg1212->playback_pid >= 0 && korg1212->capture_pid >= 0)
832 		return 0;
833 
834 	return 1;
835 }
836 
837 static int snd_korg1212_SetRate(struct snd_korg1212 *korg1212, int rate)
838 {
839         static enum ClockSourceIndex s44[] = {
840 		K1212_CLKIDX_AdatAt44_1K,
841 		K1212_CLKIDX_WordAt44_1K,
842 		K1212_CLKIDX_LocalAt44_1K
843 	};
844         static enum ClockSourceIndex s48[] = {
845 		K1212_CLKIDX_AdatAt48K,
846 		K1212_CLKIDX_WordAt48K,
847 		K1212_CLKIDX_LocalAt48K
848 	};
849         int parm, rc;
850 
851 	if (!snd_korg1212_use_is_exclusive (korg1212))
852 		return -EBUSY;
853 
854 	switch (rate) {
855 	case 44100:
856 		parm = s44[korg1212->clkSource];
857 		break;
858 
859 	case 48000:
860 		parm = s48[korg1212->clkSource];
861 		break;
862 
863 	default:
864 		return -EINVAL;
865 	}
866 
867         korg1212->clkSrcRate = parm;
868         korg1212->clkRate = rate;
869 
870 	udelay(INTERCOMMAND_DELAY);
871 	rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SetClockSourceRate,
872 					  ClockSourceSelector[korg1212->clkSrcRate],
873 					  0, 0, 0);
874 	if (rc)
875 		K1212_DEBUG_PRINTK("K1212_DEBUG: Set Clock Source Selector - RC = %d [%s]\n",
876 				   rc, stateName[korg1212->cardState]);
877 
878         return 0;
879 }
880 
881 static int snd_korg1212_SetClockSource(struct snd_korg1212 *korg1212, int source)
882 {
883 
884 	if (source < 0 || source > 2)
885 		return -EINVAL;
886 
887         korg1212->clkSource = source;
888 
889         snd_korg1212_SetRate(korg1212, korg1212->clkRate);
890 
891         return 0;
892 }
893 
894 static void snd_korg1212_DisableCardInterrupts(struct snd_korg1212 *korg1212)
895 {
896 	writel(0, korg1212->statusRegPtr);
897 }
898 
899 static int snd_korg1212_WriteADCSensitivity(struct snd_korg1212 *korg1212)
900 {
901         struct SensBits  sensVals;
902         int       bitPosition;
903         int       channel;
904         int       clkIs48K;
905         int       monModeSet;
906         u16       controlValue;    // this keeps the current value to be written to
907                                    //  the card's eeprom control register.
908         u16       count;
909 	unsigned long flags;
910 
911 	K1212_DEBUG_PRINTK("K1212_DEBUG: WriteADCSensivity [%s]\n",
912 			   stateName[korg1212->cardState]);
913 
914         // ----------------------------------------------------------------------------
915         // initialize things.  The local init bit is always set when writing to the
916         // card's control register.
917         // ----------------------------------------------------------------------------
918         controlValue = 0;
919         SetBitInWord(&controlValue, SET_SENS_LOCALINIT_BITPOS);    // init the control value
920 
921         // ----------------------------------------------------------------------------
922         // make sure the card is not in monitor mode when we do this update.
923         // ----------------------------------------------------------------------------
924         if (korg1212->cardState == K1212_STATE_MONITOR || korg1212->idleMonitorOn) {
925                 monModeSet = 1;
926 		snd_korg1212_SendStopAndWait(korg1212);
927         } else
928                 monModeSet = 0;
929 
930 	spin_lock_irqsave(&korg1212->lock, flags);
931 
932         // ----------------------------------------------------------------------------
933         // we are about to send new values to the card, so clear the new values queued
934         // flag.  Also, clear out mailbox 3, so we don't lockup.
935         // ----------------------------------------------------------------------------
936         writel(0, korg1212->mailbox3Ptr);
937         udelay(LOADSHIFT_DELAY);
938 
939         // ----------------------------------------------------------------------------
940         // determine whether we are running a 48K or 44.1K clock.  This info is used
941         // later when setting the SPDIF FF after the volume has been shifted in.
942         // ----------------------------------------------------------------------------
943         switch (korg1212->clkSrcRate) {
944                 case K1212_CLKIDX_AdatAt44_1K:
945                 case K1212_CLKIDX_WordAt44_1K:
946                 case K1212_CLKIDX_LocalAt44_1K:
947                         clkIs48K = 0;
948                         break;
949 
950                 case K1212_CLKIDX_WordAt48K:
951                 case K1212_CLKIDX_AdatAt48K:
952                 case K1212_CLKIDX_LocalAt48K:
953                 default:
954                         clkIs48K = 1;
955                         break;
956         }
957 
958         // ----------------------------------------------------------------------------
959         // start the update.  Setup the bit structure and then shift the bits.
960         // ----------------------------------------------------------------------------
961         sensVals.l.v.leftChanId   = SET_SENS_LEFTCHANID;
962         sensVals.r.v.rightChanId  = SET_SENS_RIGHTCHANID;
963         sensVals.l.v.leftChanVal  = korg1212->leftADCInSens;
964         sensVals.r.v.rightChanVal = korg1212->rightADCInSens;
965 
966         // ----------------------------------------------------------------------------
967         // now start shifting the bits in.  Start with the left channel then the right.
968         // ----------------------------------------------------------------------------
969         for (channel = 0; channel < 2; channel++) {
970 
971                 // ----------------------------------------------------------------------------
972                 // Bring the load/shift line low, then wait - the spec says >150ns from load/
973                 // shift low to the first rising edge of the clock.
974                 // ----------------------------------------------------------------------------
975                 ClearBitInWord(&controlValue, SET_SENS_LOADSHIFT_BITPOS);
976                 ClearBitInWord(&controlValue, SET_SENS_DATA_BITPOS);
977                 writew(controlValue, korg1212->sensRegPtr);                          // load/shift goes low
978                 udelay(LOADSHIFT_DELAY);
979 
980                 for (bitPosition = 15; bitPosition >= 0; bitPosition--) {       // for all the bits
981 			if (channel == 0) {
982 				if (sensVals.l.leftSensBits & (0x0001 << bitPosition))
983                                         SetBitInWord(&controlValue, SET_SENS_DATA_BITPOS);     // data bit set high
984 				else
985 					ClearBitInWord(&controlValue, SET_SENS_DATA_BITPOS);   // data bit set low
986 			} else {
987                                 if (sensVals.r.rightSensBits & (0x0001 << bitPosition))
988 					SetBitInWord(&controlValue, SET_SENS_DATA_BITPOS);     // data bit set high
989 				else
990 					ClearBitInWord(&controlValue, SET_SENS_DATA_BITPOS);   // data bit set low
991 			}
992 
993                         ClearBitInWord(&controlValue, SET_SENS_CLOCK_BITPOS);
994                         writew(controlValue, korg1212->sensRegPtr);                       // clock goes low
995                         udelay(SENSCLKPULSE_WIDTH);
996                         SetBitInWord(&controlValue, SET_SENS_CLOCK_BITPOS);
997                         writew(controlValue, korg1212->sensRegPtr);                       // clock goes high
998                         udelay(SENSCLKPULSE_WIDTH);
999                 }
1000 
1001                 // ----------------------------------------------------------------------------
1002                 // finish up SPDIF for left.  Bring the load/shift line high, then write a one
1003                 // bit if the clock rate is 48K otherwise write 0.
1004                 // ----------------------------------------------------------------------------
1005                 ClearBitInWord(&controlValue, SET_SENS_DATA_BITPOS);
1006                 ClearBitInWord(&controlValue, SET_SENS_CLOCK_BITPOS);
1007                 SetBitInWord(&controlValue, SET_SENS_LOADSHIFT_BITPOS);
1008                 writew(controlValue, korg1212->sensRegPtr);                   // load shift goes high - clk low
1009                 udelay(SENSCLKPULSE_WIDTH);
1010 
1011                 if (clkIs48K)
1012                         SetBitInWord(&controlValue, SET_SENS_DATA_BITPOS);
1013 
1014                 writew(controlValue, korg1212->sensRegPtr);                   // set/clear data bit
1015                 udelay(ONE_RTC_TICK);
1016                 SetBitInWord(&controlValue, SET_SENS_CLOCK_BITPOS);
1017                 writew(controlValue, korg1212->sensRegPtr);                   // clock goes high
1018                 udelay(SENSCLKPULSE_WIDTH);
1019                 ClearBitInWord(&controlValue, SET_SENS_CLOCK_BITPOS);
1020                 writew(controlValue, korg1212->sensRegPtr);                   // clock goes low
1021                 udelay(SENSCLKPULSE_WIDTH);
1022         }
1023 
1024         // ----------------------------------------------------------------------------
1025         // The update is complete.  Set a timeout.  This is the inter-update delay.
1026         // Also, if the card was in monitor mode, restore it.
1027         // ----------------------------------------------------------------------------
1028         for (count = 0; count < 10; count++)
1029                 udelay(SENSCLKPULSE_WIDTH);
1030 
1031         if (monModeSet) {
1032                 int rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SelectPlayMode,
1033                                 K1212_MODE_MonitorOn, 0, 0, 0);
1034 	        if (rc)
1035 			K1212_DEBUG_PRINTK("K1212_DEBUG: WriteADCSensivity - RC = %d [%s]\n",
1036 					   rc, stateName[korg1212->cardState]);
1037         }
1038 
1039 	spin_unlock_irqrestore(&korg1212->lock, flags);
1040 
1041         return 1;
1042 }
1043 
1044 static void snd_korg1212_OnDSPDownloadComplete(struct snd_korg1212 *korg1212)
1045 {
1046         int channel, rc;
1047 
1048         K1212_DEBUG_PRINTK("K1212_DEBUG: DSP download is complete. [%s]\n",
1049 			   stateName[korg1212->cardState]);
1050 
1051         // ----------------------------------------------------
1052         // tell the card to boot
1053         // ----------------------------------------------------
1054         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_BootFromDSPPage4, 0, 0, 0, 0);
1055 
1056 	if (rc)
1057 		K1212_DEBUG_PRINTK("K1212_DEBUG: Boot from Page 4 - RC = %d [%s]\n",
1058 				   rc, stateName[korg1212->cardState]);
1059 	msleep(DSP_BOOT_DELAY_IN_MS);
1060 
1061         // --------------------------------------------------------------------------------
1062         // Let the card know where all the buffers are.
1063         // --------------------------------------------------------------------------------
1064         rc = snd_korg1212_Send1212Command(korg1212,
1065                         K1212_DB_ConfigureBufferMemory,
1066                         LowerWordSwap(korg1212->PlayDataPhy),
1067                         LowerWordSwap(korg1212->RecDataPhy),
1068                         ((kNumBuffers * kPlayBufferFrames) / 2),   // size given to the card
1069                                                                    // is based on 2 buffers
1070                         0
1071         );
1072 
1073 	if (rc)
1074 		K1212_DEBUG_PRINTK("K1212_DEBUG: Configure Buffer Memory - RC = %d [%s]\n",
1075 				   rc, stateName[korg1212->cardState]);
1076 
1077         udelay(INTERCOMMAND_DELAY);
1078 
1079         rc = snd_korg1212_Send1212Command(korg1212,
1080                         K1212_DB_ConfigureMiscMemory,
1081                         LowerWordSwap(korg1212->VolumeTablePhy),
1082                         LowerWordSwap(korg1212->RoutingTablePhy),
1083                         LowerWordSwap(korg1212->AdatTimeCodePhy),
1084                         0
1085         );
1086 
1087 	if (rc)
1088 		K1212_DEBUG_PRINTK("K1212_DEBUG: Configure Misc Memory - RC = %d [%s]\n",
1089 				   rc, stateName[korg1212->cardState]);
1090 
1091         // --------------------------------------------------------------------------------
1092         // Initialize the routing and volume tables, then update the card's state.
1093         // --------------------------------------------------------------------------------
1094         udelay(INTERCOMMAND_DELAY);
1095 
1096         for (channel = 0; channel < kAudioChannels; channel++) {
1097                 korg1212->sharedBufferPtr->volumeData[channel] = k1212MaxVolume;
1098                 //korg1212->sharedBufferPtr->routeData[channel] = channel;
1099                 korg1212->sharedBufferPtr->routeData[channel] = 8 + (channel & 1);
1100         }
1101 
1102         snd_korg1212_WriteADCSensitivity(korg1212);
1103 
1104 	udelay(INTERCOMMAND_DELAY);
1105 	rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_SetClockSourceRate,
1106 					  ClockSourceSelector[korg1212->clkSrcRate],
1107 					  0, 0, 0);
1108 	if (rc)
1109 		K1212_DEBUG_PRINTK("K1212_DEBUG: Set Clock Source Selector - RC = %d [%s]\n",
1110 				   rc, stateName[korg1212->cardState]);
1111 
1112 	rc = snd_korg1212_TurnOnIdleMonitor(korg1212);
1113 	snd_korg1212_setCardState(korg1212, K1212_STATE_READY);
1114 
1115 	if (rc)
1116 		K1212_DEBUG_PRINTK("K1212_DEBUG: Set Monitor On - RC = %d [%s]\n",
1117 				   rc, stateName[korg1212->cardState]);
1118 
1119 	snd_korg1212_setCardState(korg1212, K1212_STATE_DSP_COMPLETE);
1120 }
1121 
1122 static irqreturn_t snd_korg1212_interrupt(int irq, void *dev_id, struct pt_regs *regs)
1123 {
1124         u32 doorbellValue;
1125         struct snd_korg1212 *korg1212 = dev_id;
1126 
1127 	if(irq != korg1212->irq)
1128 		return IRQ_NONE;
1129 
1130         doorbellValue = readl(korg1212->inDoorbellPtr);
1131 
1132         if (!doorbellValue)
1133 		return IRQ_NONE;
1134 
1135 	spin_lock(&korg1212->lock);
1136 
1137 	writel(doorbellValue, korg1212->inDoorbellPtr);
1138 
1139         korg1212->irqcount++;
1140 
1141 	korg1212->inIRQ++;
1142 
1143 
1144         switch (doorbellValue) {
1145                 case K1212_DB_DSPDownloadDone:
1146                         K1212_DEBUG_PRINTK("K1212_DEBUG: IRQ DNLD count - %ld, %x, [%s].\n",
1147 					   korg1212->irqcount, doorbellValue,
1148 					   stateName[korg1212->cardState]);
1149                         if (korg1212->cardState == K1212_STATE_DSP_IN_PROCESS) {
1150 				korg1212->dsp_is_loaded = 1;
1151 				wake_up(&korg1212->wait);
1152 			}
1153                         break;
1154 
1155                 // ------------------------------------------------------------------------
1156                 // an error occurred - stop the card
1157                 // ------------------------------------------------------------------------
1158                 case K1212_DB_DMAERROR:
1159 			K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: IRQ DMAE count - %ld, %x, [%s].\n",
1160 						   korg1212->irqcount, doorbellValue,
1161 						   stateName[korg1212->cardState]);
1162 			snd_printk(KERN_ERR "korg1212: DMA Error\n");
1163 			korg1212->errorcnt++;
1164 			korg1212->totalerrorcnt++;
1165 			korg1212->sharedBufferPtr->cardCommand = 0;
1166 			snd_korg1212_setCardState(korg1212, K1212_STATE_ERRORSTOP);
1167                         break;
1168 
1169                 // ------------------------------------------------------------------------
1170                 // the card has stopped by our request.  Clear the command word and signal
1171                 // the semaphore in case someone is waiting for this.
1172                 // ------------------------------------------------------------------------
1173                 case K1212_DB_CARDSTOPPED:
1174                         K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: IRQ CSTP count - %ld, %x, [%s].\n",
1175 						   korg1212->irqcount, doorbellValue,
1176 						   stateName[korg1212->cardState]);
1177 			korg1212->sharedBufferPtr->cardCommand = 0;
1178                         break;
1179 
1180                 default:
1181 			K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: IRQ DFLT count - %ld, %x, cpos=%d [%s].\n",
1182 			       korg1212->irqcount, doorbellValue,
1183 			       korg1212->currentBuffer, stateName[korg1212->cardState]);
1184                         if ((korg1212->cardState > K1212_STATE_SETUP) || korg1212->idleMonitorOn) {
1185                                 korg1212->currentBuffer++;
1186 
1187                                 if (korg1212->currentBuffer >= kNumBuffers)
1188                                         korg1212->currentBuffer = 0;
1189 
1190                                 if (!korg1212->running)
1191                                         break;
1192 
1193                                 if (korg1212->capture_substream) {
1194 					spin_unlock(&korg1212->lock);
1195                                         snd_pcm_period_elapsed(korg1212->capture_substream);
1196 					spin_lock(&korg1212->lock);
1197                                 }
1198 
1199                                 if (korg1212->playback_substream) {
1200 					spin_unlock(&korg1212->lock);
1201                                         snd_pcm_period_elapsed(korg1212->playback_substream);
1202 					spin_lock(&korg1212->lock);
1203                                 }
1204                         }
1205                         break;
1206         }
1207 
1208 	korg1212->inIRQ--;
1209 
1210 	spin_unlock(&korg1212->lock);
1211 
1212 	return IRQ_HANDLED;
1213 }
1214 
1215 static int snd_korg1212_downloadDSPCode(struct snd_korg1212 *korg1212)
1216 {
1217 	int rc;
1218 
1219         K1212_DEBUG_PRINTK("K1212_DEBUG: DSP download is starting... [%s]\n",
1220 			   stateName[korg1212->cardState]);
1221 
1222         // ---------------------------------------------------------------
1223         // verify the state of the card before proceeding.
1224         // ---------------------------------------------------------------
1225         if (korg1212->cardState >= K1212_STATE_DSP_IN_PROCESS)
1226                 return 1;
1227 
1228         snd_korg1212_setCardState(korg1212, K1212_STATE_DSP_IN_PROCESS);
1229 
1230         memcpy(korg1212->dma_dsp.area, dspCode, korg1212->dspCodeSize);
1231 
1232         rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_StartDSPDownload,
1233                                      UpperWordSwap(korg1212->dma_dsp.addr),
1234                                      0, 0, 0);
1235 	if (rc)
1236 		K1212_DEBUG_PRINTK("K1212_DEBUG: Start DSP Download RC = %d [%s]\n",
1237 				   rc, stateName[korg1212->cardState]);
1238 
1239 	korg1212->dsp_is_loaded = 0;
1240 	wait_event_timeout(korg1212->wait, korg1212->dsp_is_loaded, HZ * CARD_BOOT_TIMEOUT);
1241 	if (! korg1212->dsp_is_loaded )
1242 		return -EBUSY; /* timeout */
1243 
1244 	snd_korg1212_OnDSPDownloadComplete(korg1212);
1245 
1246         return 0;
1247 }
1248 
1249 static struct snd_pcm_hardware snd_korg1212_playback_info =
1250 {
1251 	.info =              (SNDRV_PCM_INFO_MMAP |
1252                               SNDRV_PCM_INFO_MMAP_VALID |
1253                               SNDRV_PCM_INFO_INTERLEAVED),
1254 	.formats =	      SNDRV_PCM_FMTBIT_S16_LE,
1255         .rates =              (SNDRV_PCM_RATE_44100 |
1256                               SNDRV_PCM_RATE_48000),
1257         .rate_min =           44100,
1258         .rate_max =           48000,
1259         .channels_min =       K1212_MIN_CHANNELS,
1260         .channels_max =       K1212_MAX_CHANNELS,
1261         .buffer_bytes_max =   K1212_MAX_BUF_SIZE,
1262         .period_bytes_min =   K1212_MIN_CHANNELS * 2 * kPlayBufferFrames,
1263         .period_bytes_max =   K1212_MAX_CHANNELS * 2 * kPlayBufferFrames,
1264         .periods_min =        K1212_PERIODS,
1265         .periods_max =        K1212_PERIODS,
1266         .fifo_size =          0,
1267 };
1268 
1269 static struct snd_pcm_hardware snd_korg1212_capture_info =
1270 {
1271         .info =              (SNDRV_PCM_INFO_MMAP |
1272                               SNDRV_PCM_INFO_MMAP_VALID |
1273                               SNDRV_PCM_INFO_INTERLEAVED),
1274         .formats =	      SNDRV_PCM_FMTBIT_S16_LE,
1275         .rates =	      (SNDRV_PCM_RATE_44100 |
1276                               SNDRV_PCM_RATE_48000),
1277         .rate_min =           44100,
1278         .rate_max =           48000,
1279         .channels_min =       K1212_MIN_CHANNELS,
1280         .channels_max =       K1212_MAX_CHANNELS,
1281         .buffer_bytes_max =   K1212_MAX_BUF_SIZE,
1282         .period_bytes_min =   K1212_MIN_CHANNELS * 2 * kPlayBufferFrames,
1283         .period_bytes_max =   K1212_MAX_CHANNELS * 2 * kPlayBufferFrames,
1284         .periods_min =        K1212_PERIODS,
1285         .periods_max =        K1212_PERIODS,
1286         .fifo_size =          0,
1287 };
1288 
1289 static int snd_korg1212_silence(struct snd_korg1212 *korg1212, int pos, int count, int offset, int size)
1290 {
1291 	struct KorgAudioFrame * dst =  korg1212->playDataBufsPtr[0].bufferData + pos;
1292 	int i;
1293 
1294 	K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_silence pos=%d offset=%d size=%d count=%d\n",
1295 				   pos, offset, size, count);
1296 	snd_assert(pos + count <= K1212_MAX_SAMPLES, return -EINVAL);
1297 
1298 	for (i=0; i < count; i++) {
1299 #if K1212_DEBUG_LEVEL > 0
1300 		if ( (void *) dst < (void *) korg1212->playDataBufsPtr ||
1301 		     (void *) dst > (void *) korg1212->playDataBufsPtr[8].bufferData ) {
1302 			printk(KERN_DEBUG "K1212_DEBUG: snd_korg1212_silence KERNEL EFAULT dst=%p iter=%d\n",
1303 			       dst, i);
1304 			return -EFAULT;
1305 		}
1306 #endif
1307 		memset((void*) dst + offset, 0, size);
1308 		dst++;
1309 	}
1310 
1311 	return 0;
1312 }
1313 
1314 static int snd_korg1212_copy_to(struct snd_korg1212 *korg1212, void __user *dst, int pos, int count, int offset, int size)
1315 {
1316 	struct KorgAudioFrame * src =  korg1212->recordDataBufsPtr[0].bufferData + pos;
1317 	int i, rc;
1318 
1319 	K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_copy_to pos=%d offset=%d size=%d\n",
1320 				   pos, offset, size);
1321 	snd_assert(pos + count <= K1212_MAX_SAMPLES, return -EINVAL);
1322 
1323 	for (i=0; i < count; i++) {
1324 #if K1212_DEBUG_LEVEL > 0
1325 		if ( (void *) src < (void *) korg1212->recordDataBufsPtr ||
1326 		     (void *) src > (void *) korg1212->recordDataBufsPtr[8].bufferData ) {
1327 			printk(KERN_DEBUG "K1212_DEBUG: snd_korg1212_copy_to KERNEL EFAULT, src=%p dst=%p iter=%d\n", src, dst, i);
1328 			return -EFAULT;
1329 		}
1330 #endif
1331 		rc = copy_to_user(dst + offset, src, size);
1332 		if (rc) {
1333 			K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_copy_to USER EFAULT src=%p dst=%p iter=%d\n", src, dst, i);
1334 			return -EFAULT;
1335 		}
1336 		src++;
1337 		dst += size;
1338 	}
1339 
1340 	return 0;
1341 }
1342 
1343 static int snd_korg1212_copy_from(struct snd_korg1212 *korg1212, void __user *src, int pos, int count, int offset, int size)
1344 {
1345 	struct KorgAudioFrame * dst =  korg1212->playDataBufsPtr[0].bufferData + pos;
1346 	int i, rc;
1347 
1348 	K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_copy_from pos=%d offset=%d size=%d count=%d\n",
1349 				   pos, offset, size, count);
1350 
1351 	snd_assert(pos + count <= K1212_MAX_SAMPLES, return -EINVAL);
1352 
1353 	for (i=0; i < count; i++) {
1354 #if K1212_DEBUG_LEVEL > 0
1355 		if ( (void *) dst < (void *) korg1212->playDataBufsPtr ||
1356 		     (void *) dst > (void *) korg1212->playDataBufsPtr[8].bufferData ) {
1357 			printk(KERN_DEBUG "K1212_DEBUG: snd_korg1212_copy_from KERNEL EFAULT, src=%p dst=%p iter=%d\n", src, dst, i);
1358 			return -EFAULT;
1359 		}
1360 #endif
1361 		rc = copy_from_user((void*) dst + offset, src, size);
1362 		if (rc) {
1363 			K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_copy_from USER EFAULT src=%p dst=%p iter=%d\n", src, dst, i);
1364 			return -EFAULT;
1365 		}
1366 		dst++;
1367 		src += size;
1368 	}
1369 
1370 	return 0;
1371 }
1372 
1373 static void snd_korg1212_free_pcm(struct snd_pcm *pcm)
1374 {
1375         struct snd_korg1212 *korg1212 = pcm->private_data;
1376 
1377 	K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_free_pcm [%s]\n",
1378 			   stateName[korg1212->cardState]);
1379 
1380         korg1212->pcm = NULL;
1381 }
1382 
1383 static int snd_korg1212_playback_open(struct snd_pcm_substream *substream)
1384 {
1385         unsigned long flags;
1386         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1387         struct snd_pcm_runtime *runtime = substream->runtime;
1388 
1389 	K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_playback_open [%s]\n",
1390 			   stateName[korg1212->cardState]);
1391 
1392         snd_pcm_set_sync(substream);    // ???
1393 
1394 	snd_korg1212_OpenCard(korg1212);
1395 
1396         runtime->hw = snd_korg1212_playback_info;
1397 	snd_pcm_set_runtime_buffer(substream, &korg1212->dma_play);
1398 
1399         spin_lock_irqsave(&korg1212->lock, flags);
1400 
1401         korg1212->playback_substream = substream;
1402 	korg1212->playback_pid = current->pid;
1403         korg1212->periodsize = K1212_PERIODS;
1404 	korg1212->channels = K1212_CHANNELS;
1405 	korg1212->errorcnt = 0;
1406 
1407         spin_unlock_irqrestore(&korg1212->lock, flags);
1408 
1409         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, kPlayBufferFrames, kPlayBufferFrames);
1410         return 0;
1411 }
1412 
1413 
1414 static int snd_korg1212_capture_open(struct snd_pcm_substream *substream)
1415 {
1416         unsigned long flags;
1417         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1418         struct snd_pcm_runtime *runtime = substream->runtime;
1419 
1420 	K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_capture_open [%s]\n",
1421 			   stateName[korg1212->cardState]);
1422 
1423         snd_pcm_set_sync(substream);
1424 
1425 	snd_korg1212_OpenCard(korg1212);
1426 
1427         runtime->hw = snd_korg1212_capture_info;
1428 	snd_pcm_set_runtime_buffer(substream, &korg1212->dma_rec);
1429 
1430         spin_lock_irqsave(&korg1212->lock, flags);
1431 
1432         korg1212->capture_substream = substream;
1433 	korg1212->capture_pid = current->pid;
1434         korg1212->periodsize = K1212_PERIODS;
1435 	korg1212->channels = K1212_CHANNELS;
1436 
1437         spin_unlock_irqrestore(&korg1212->lock, flags);
1438 
1439         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
1440 				     kPlayBufferFrames, kPlayBufferFrames);
1441         return 0;
1442 }
1443 
1444 static int snd_korg1212_playback_close(struct snd_pcm_substream *substream)
1445 {
1446         unsigned long flags;
1447         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1448 
1449 	K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_playback_close [%s]\n",
1450 			   stateName[korg1212->cardState]);
1451 
1452 	snd_korg1212_silence(korg1212, 0, K1212_MAX_SAMPLES, 0, korg1212->channels * 2);
1453 
1454         spin_lock_irqsave(&korg1212->lock, flags);
1455 
1456 	korg1212->playback_pid = -1;
1457         korg1212->playback_substream = NULL;
1458         korg1212->periodsize = 0;
1459 
1460         spin_unlock_irqrestore(&korg1212->lock, flags);
1461 
1462 	snd_korg1212_CloseCard(korg1212);
1463         return 0;
1464 }
1465 
1466 static int snd_korg1212_capture_close(struct snd_pcm_substream *substream)
1467 {
1468         unsigned long flags;
1469         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1470 
1471 	K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_capture_close [%s]\n",
1472 			   stateName[korg1212->cardState]);
1473 
1474         spin_lock_irqsave(&korg1212->lock, flags);
1475 
1476 	korg1212->capture_pid = -1;
1477         korg1212->capture_substream = NULL;
1478         korg1212->periodsize = 0;
1479 
1480         spin_unlock_irqrestore(&korg1212->lock, flags);
1481 
1482 	snd_korg1212_CloseCard(korg1212);
1483         return 0;
1484 }
1485 
1486 static int snd_korg1212_ioctl(struct snd_pcm_substream *substream,
1487 			     unsigned int cmd, void *arg)
1488 {
1489 	K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_ioctl: cmd=%d\n", cmd);
1490 
1491 	if (cmd == SNDRV_PCM_IOCTL1_CHANNEL_INFO ) {
1492 		struct snd_pcm_channel_info *info = arg;
1493         	info->offset = 0;
1494         	info->first = info->channel * 16;
1495         	info->step = 256;
1496 		K1212_DEBUG_PRINTK("K1212_DEBUG: channel_info %d:, offset=%ld, first=%d, step=%d\n", info->channel, info->offset, info->first, info->step);
1497 		return 0;
1498 	}
1499 
1500         return snd_pcm_lib_ioctl(substream, cmd, arg);
1501 }
1502 
1503 static int snd_korg1212_hw_params(struct snd_pcm_substream *substream,
1504                              struct snd_pcm_hw_params *params)
1505 {
1506         unsigned long flags;
1507         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1508         int err;
1509 	pid_t this_pid;
1510 	pid_t other_pid;
1511 
1512 	K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_hw_params [%s]\n",
1513 			   stateName[korg1212->cardState]);
1514 
1515         spin_lock_irqsave(&korg1212->lock, flags);
1516 
1517 	if (substream->pstr->stream == SNDRV_PCM_STREAM_PLAYBACK) {
1518 		this_pid = korg1212->playback_pid;
1519 		other_pid = korg1212->capture_pid;
1520 	} else {
1521 		this_pid = korg1212->capture_pid;
1522 		other_pid = korg1212->playback_pid;
1523 	}
1524 
1525 	if ((other_pid > 0) && (this_pid != other_pid)) {
1526 
1527 		/* The other stream is open, and not by the same
1528 		   task as this one. Make sure that the parameters
1529 		   that matter are the same.
1530 		 */
1531 
1532 		if ((int)params_rate(params) != korg1212->clkRate) {
1533 			spin_unlock_irqrestore(&korg1212->lock, flags);
1534 			_snd_pcm_hw_param_setempty(params, SNDRV_PCM_HW_PARAM_RATE);
1535 			return -EBUSY;
1536 		}
1537 
1538         	spin_unlock_irqrestore(&korg1212->lock, flags);
1539 	        return 0;
1540 	}
1541 
1542         if ((err = snd_korg1212_SetRate(korg1212, params_rate(params))) < 0) {
1543                 spin_unlock_irqrestore(&korg1212->lock, flags);
1544                 return err;
1545         }
1546 
1547 	korg1212->channels = params_channels(params);
1548         korg1212->periodsize = K1212_PERIOD_BYTES;
1549 
1550         spin_unlock_irqrestore(&korg1212->lock, flags);
1551 
1552         return 0;
1553 }
1554 
1555 static int snd_korg1212_prepare(struct snd_pcm_substream *substream)
1556 {
1557         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1558 	int rc;
1559 
1560 	K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_prepare [%s]\n",
1561 			   stateName[korg1212->cardState]);
1562 
1563 	spin_lock_irq(&korg1212->lock);
1564 
1565 	/* FIXME: we should wait for ack! */
1566 	if (korg1212->stop_pending_cnt > 0) {
1567 		K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_prepare - Stop is pending... [%s]\n",
1568 				   stateName[korg1212->cardState]);
1569         	spin_unlock_irq(&korg1212->lock);
1570 		return -EAGAIN;
1571 		/*
1572 		korg1212->sharedBufferPtr->cardCommand = 0;
1573 		del_timer(&korg1212->timer);
1574 		korg1212->stop_pending_cnt = 0;
1575 		*/
1576 	}
1577 
1578         rc = snd_korg1212_SetupForPlay(korg1212);
1579 
1580         korg1212->currentBuffer = 0;
1581 
1582         spin_unlock_irq(&korg1212->lock);
1583 
1584 	return rc ? -EINVAL : 0;
1585 }
1586 
1587 static int snd_korg1212_trigger(struct snd_pcm_substream *substream,
1588                            int cmd)
1589 {
1590         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1591 	int rc;
1592 
1593 	K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_trigger [%s] cmd=%d\n",
1594 			   stateName[korg1212->cardState], cmd);
1595 
1596 	spin_lock(&korg1212->lock);
1597         switch (cmd) {
1598                 case SNDRV_PCM_TRIGGER_START:
1599 /*
1600 			if (korg1212->running) {
1601 				K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_trigger: Already running?\n");
1602 				break;
1603 			}
1604 */
1605                         korg1212->running++;
1606                         rc = snd_korg1212_TriggerPlay(korg1212);
1607                         break;
1608 
1609                 case SNDRV_PCM_TRIGGER_STOP:
1610 /*
1611 			if (!korg1212->running) {
1612 				K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_trigger: Already stopped?\n");
1613 				break;
1614 			}
1615 */
1616                         korg1212->running--;
1617                         rc = snd_korg1212_StopPlay(korg1212);
1618                         break;
1619 
1620                 default:
1621 			rc = 1;
1622 			break;
1623         }
1624 	spin_unlock(&korg1212->lock);
1625         return rc ? -EINVAL : 0;
1626 }
1627 
1628 static snd_pcm_uframes_t snd_korg1212_playback_pointer(struct snd_pcm_substream *substream)
1629 {
1630         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1631         snd_pcm_uframes_t pos;
1632 
1633 	pos = korg1212->currentBuffer * kPlayBufferFrames;
1634 
1635 	K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_playback_pointer [%s] %ld\n",
1636 				   stateName[korg1212->cardState], pos);
1637 
1638         return pos;
1639 }
1640 
1641 static snd_pcm_uframes_t snd_korg1212_capture_pointer(struct snd_pcm_substream *substream)
1642 {
1643         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1644         snd_pcm_uframes_t pos;
1645 
1646 	pos = korg1212->currentBuffer * kPlayBufferFrames;
1647 
1648 	K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_capture_pointer [%s] %ld\n",
1649 				   stateName[korg1212->cardState], pos);
1650 
1651         return pos;
1652 }
1653 
1654 static int snd_korg1212_playback_copy(struct snd_pcm_substream *substream,
1655                         int channel, /* not used (interleaved data) */
1656                         snd_pcm_uframes_t pos,
1657                         void __user *src,
1658                         snd_pcm_uframes_t count)
1659 {
1660         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1661 
1662 	K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_playback_copy [%s] %ld %ld\n",
1663 				   stateName[korg1212->cardState], pos, count);
1664 
1665 	return snd_korg1212_copy_from(korg1212, src, pos, count, 0, korg1212->channels * 2);
1666 
1667 }
1668 
1669 static int snd_korg1212_playback_silence(struct snd_pcm_substream *substream,
1670                            int channel, /* not used (interleaved data) */
1671                            snd_pcm_uframes_t pos,
1672                            snd_pcm_uframes_t count)
1673 {
1674         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1675 
1676 	K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_playback_silence [%s]\n",
1677 				   stateName[korg1212->cardState]);
1678 
1679 	return snd_korg1212_silence(korg1212, pos, count, 0, korg1212->channels * 2);
1680 }
1681 
1682 static int snd_korg1212_capture_copy(struct snd_pcm_substream *substream,
1683                         int channel, /* not used (interleaved data) */
1684                         snd_pcm_uframes_t pos,
1685                         void __user *dst,
1686                         snd_pcm_uframes_t count)
1687 {
1688         struct snd_korg1212 *korg1212 = snd_pcm_substream_chip(substream);
1689 
1690 	K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_capture_copy [%s] %ld %ld\n",
1691 				   stateName[korg1212->cardState], pos, count);
1692 
1693 	return snd_korg1212_copy_to(korg1212, dst, pos, count, 0, korg1212->channels * 2);
1694 }
1695 
1696 static struct snd_pcm_ops snd_korg1212_playback_ops = {
1697         .open =		snd_korg1212_playback_open,
1698         .close =	snd_korg1212_playback_close,
1699         .ioctl =	snd_korg1212_ioctl,
1700         .hw_params =	snd_korg1212_hw_params,
1701         .prepare =	snd_korg1212_prepare,
1702         .trigger =	snd_korg1212_trigger,
1703         .pointer =	snd_korg1212_playback_pointer,
1704         .copy =		snd_korg1212_playback_copy,
1705         .silence =	snd_korg1212_playback_silence,
1706 };
1707 
1708 static struct snd_pcm_ops snd_korg1212_capture_ops = {
1709 	.open =		snd_korg1212_capture_open,
1710 	.close =	snd_korg1212_capture_close,
1711 	.ioctl =	snd_korg1212_ioctl,
1712 	.hw_params =	snd_korg1212_hw_params,
1713 	.prepare =	snd_korg1212_prepare,
1714 	.trigger =	snd_korg1212_trigger,
1715 	.pointer =	snd_korg1212_capture_pointer,
1716 	.copy =		snd_korg1212_capture_copy,
1717 };
1718 
1719 /*
1720  * Control Interface
1721  */
1722 
1723 static int snd_korg1212_control_phase_info(struct snd_kcontrol *kcontrol,
1724 					   struct snd_ctl_elem_info *uinfo)
1725 {
1726 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1727 	uinfo->count = (kcontrol->private_value >= 8) ? 2 : 1;
1728 	return 0;
1729 }
1730 
1731 static int snd_korg1212_control_phase_get(struct snd_kcontrol *kcontrol,
1732 					  struct snd_ctl_elem_value *u)
1733 {
1734 	struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1735 	int i = kcontrol->private_value;
1736 
1737 	spin_lock_irq(&korg1212->lock);
1738 
1739         u->value.integer.value[0] = korg1212->volumePhase[i];
1740 
1741 	if (i >= 8)
1742         	u->value.integer.value[1] = korg1212->volumePhase[i+1];
1743 
1744 	spin_unlock_irq(&korg1212->lock);
1745 
1746         return 0;
1747 }
1748 
1749 static int snd_korg1212_control_phase_put(struct snd_kcontrol *kcontrol,
1750 					  struct snd_ctl_elem_value *u)
1751 {
1752 	struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1753         int change = 0;
1754         int i, val;
1755 
1756 	spin_lock_irq(&korg1212->lock);
1757 
1758 	i = kcontrol->private_value;
1759 
1760 	korg1212->volumePhase[i] = u->value.integer.value[0];
1761 
1762 	val = korg1212->sharedBufferPtr->volumeData[kcontrol->private_value];
1763 
1764 	if ((u->value.integer.value[0] > 0) != (val < 0)) {
1765 		val = abs(val) * (korg1212->volumePhase[i] > 0 ? -1 : 1);
1766 		korg1212->sharedBufferPtr->volumeData[i] = val;
1767 		change = 1;
1768 	}
1769 
1770 	if (i >= 8) {
1771 		korg1212->volumePhase[i+1] = u->value.integer.value[1];
1772 
1773 		val = korg1212->sharedBufferPtr->volumeData[kcontrol->private_value+1];
1774 
1775 		if ((u->value.integer.value[1] > 0) != (val < 0)) {
1776 			val = abs(val) * (korg1212->volumePhase[i+1] > 0 ? -1 : 1);
1777 			korg1212->sharedBufferPtr->volumeData[i+1] = val;
1778 			change = 1;
1779 		}
1780 	}
1781 
1782 	spin_unlock_irq(&korg1212->lock);
1783 
1784         return change;
1785 }
1786 
1787 static int snd_korg1212_control_volume_info(struct snd_kcontrol *kcontrol,
1788 					    struct snd_ctl_elem_info *uinfo)
1789 {
1790         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1791 	uinfo->count = (kcontrol->private_value >= 8) ? 2 : 1;
1792         uinfo->value.integer.min = k1212MinVolume;
1793 	uinfo->value.integer.max = k1212MaxVolume;
1794         return 0;
1795 }
1796 
1797 static int snd_korg1212_control_volume_get(struct snd_kcontrol *kcontrol,
1798 					   struct snd_ctl_elem_value *u)
1799 {
1800 	struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1801         int i;
1802 
1803 	spin_lock_irq(&korg1212->lock);
1804 
1805 	i = kcontrol->private_value;
1806         u->value.integer.value[0] = abs(korg1212->sharedBufferPtr->volumeData[i]);
1807 
1808 	if (i >= 8)
1809                 u->value.integer.value[1] = abs(korg1212->sharedBufferPtr->volumeData[i+1]);
1810 
1811         spin_unlock_irq(&korg1212->lock);
1812 
1813         return 0;
1814 }
1815 
1816 static int snd_korg1212_control_volume_put(struct snd_kcontrol *kcontrol,
1817 					   struct snd_ctl_elem_value *u)
1818 {
1819 	struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1820         int change = 0;
1821         int i;
1822 	int val;
1823 
1824 	spin_lock_irq(&korg1212->lock);
1825 
1826 	i = kcontrol->private_value;
1827 
1828 	if (u->value.integer.value[0] != abs(korg1212->sharedBufferPtr->volumeData[i])) {
1829 		val = korg1212->volumePhase[i] > 0 ? -1 : 1;
1830 		val *= u->value.integer.value[0];
1831 		korg1212->sharedBufferPtr->volumeData[i] = val;
1832 		change = 1;
1833 	}
1834 
1835 	if (i >= 8) {
1836 		if (u->value.integer.value[1] != abs(korg1212->sharedBufferPtr->volumeData[i+1])) {
1837 			val = korg1212->volumePhase[i+1] > 0 ? -1 : 1;
1838 			val *= u->value.integer.value[1];
1839 			korg1212->sharedBufferPtr->volumeData[i+1] = val;
1840 			change = 1;
1841 		}
1842 	}
1843 
1844 	spin_unlock_irq(&korg1212->lock);
1845 
1846         return change;
1847 }
1848 
1849 static int snd_korg1212_control_route_info(struct snd_kcontrol *kcontrol,
1850 					   struct snd_ctl_elem_info *uinfo)
1851 {
1852 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1853 	uinfo->count = (kcontrol->private_value >= 8) ? 2 : 1;
1854 	uinfo->value.enumerated.items = kAudioChannels;
1855 	if (uinfo->value.enumerated.item > kAudioChannels-1) {
1856 		uinfo->value.enumerated.item = kAudioChannels-1;
1857 	}
1858 	strcpy(uinfo->value.enumerated.name, channelName[uinfo->value.enumerated.item]);
1859 	return 0;
1860 }
1861 
1862 static int snd_korg1212_control_route_get(struct snd_kcontrol *kcontrol,
1863 					  struct snd_ctl_elem_value *u)
1864 {
1865 	struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1866         int i;
1867 
1868 	spin_lock_irq(&korg1212->lock);
1869 
1870 	i = kcontrol->private_value;
1871 	u->value.enumerated.item[0] = korg1212->sharedBufferPtr->routeData[i];
1872 
1873 	if (i >= 8)
1874 		u->value.enumerated.item[1] = korg1212->sharedBufferPtr->routeData[i+1];
1875 
1876         spin_unlock_irq(&korg1212->lock);
1877 
1878         return 0;
1879 }
1880 
1881 static int snd_korg1212_control_route_put(struct snd_kcontrol *kcontrol,
1882 					  struct snd_ctl_elem_value *u)
1883 {
1884 	struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1885         int change = 0, i;
1886 
1887 	spin_lock_irq(&korg1212->lock);
1888 
1889 	i = kcontrol->private_value;
1890 
1891 	if (u->value.enumerated.item[0] != (unsigned) korg1212->sharedBufferPtr->volumeData[i]) {
1892 		korg1212->sharedBufferPtr->routeData[i] = u->value.enumerated.item[0];
1893 		change = 1;
1894 	}
1895 
1896 	if (i >= 8) {
1897 		if (u->value.enumerated.item[1] != (unsigned) korg1212->sharedBufferPtr->volumeData[i+1]) {
1898 			korg1212->sharedBufferPtr->routeData[i+1] = u->value.enumerated.item[1];
1899 			change = 1;
1900 		}
1901 	}
1902 
1903 	spin_unlock_irq(&korg1212->lock);
1904 
1905         return change;
1906 }
1907 
1908 static int snd_korg1212_control_info(struct snd_kcontrol *kcontrol,
1909 				     struct snd_ctl_elem_info *uinfo)
1910 {
1911         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1912         uinfo->count = 2;
1913         uinfo->value.integer.min = k1212MaxADCSens;
1914 	uinfo->value.integer.max = k1212MinADCSens;
1915         return 0;
1916 }
1917 
1918 static int snd_korg1212_control_get(struct snd_kcontrol *kcontrol,
1919 				    struct snd_ctl_elem_value *u)
1920 {
1921 	struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1922 
1923 	spin_lock_irq(&korg1212->lock);
1924 
1925         u->value.integer.value[0] = korg1212->leftADCInSens;
1926         u->value.integer.value[1] = korg1212->rightADCInSens;
1927 
1928 	spin_unlock_irq(&korg1212->lock);
1929 
1930         return 0;
1931 }
1932 
1933 static int snd_korg1212_control_put(struct snd_kcontrol *kcontrol,
1934 				    struct snd_ctl_elem_value *u)
1935 {
1936 	struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1937         int change = 0;
1938 
1939 	spin_lock_irq(&korg1212->lock);
1940 
1941         if (u->value.integer.value[0] != korg1212->leftADCInSens) {
1942                 korg1212->leftADCInSens = u->value.integer.value[0];
1943                 change = 1;
1944         }
1945         if (u->value.integer.value[1] != korg1212->rightADCInSens) {
1946                 korg1212->rightADCInSens = u->value.integer.value[1];
1947                 change = 1;
1948         }
1949 
1950 	spin_unlock_irq(&korg1212->lock);
1951 
1952         if (change)
1953                 snd_korg1212_WriteADCSensitivity(korg1212);
1954 
1955         return change;
1956 }
1957 
1958 static int snd_korg1212_control_sync_info(struct snd_kcontrol *kcontrol,
1959 					  struct snd_ctl_elem_info *uinfo)
1960 {
1961 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1962 	uinfo->count = 1;
1963 	uinfo->value.enumerated.items = 3;
1964 	if (uinfo->value.enumerated.item > 2) {
1965 		uinfo->value.enumerated.item = 2;
1966 	}
1967 	strcpy(uinfo->value.enumerated.name, clockSourceTypeName[uinfo->value.enumerated.item]);
1968 	return 0;
1969 }
1970 
1971 static int snd_korg1212_control_sync_get(struct snd_kcontrol *kcontrol,
1972 					 struct snd_ctl_elem_value *ucontrol)
1973 {
1974 	struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1975 
1976 	spin_lock_irq(&korg1212->lock);
1977 
1978 	ucontrol->value.enumerated.item[0] = korg1212->clkSource;
1979 
1980 	spin_unlock_irq(&korg1212->lock);
1981 	return 0;
1982 }
1983 
1984 static int snd_korg1212_control_sync_put(struct snd_kcontrol *kcontrol,
1985 					 struct snd_ctl_elem_value *ucontrol)
1986 {
1987 	struct snd_korg1212 *korg1212 = snd_kcontrol_chip(kcontrol);
1988 	unsigned int val;
1989 	int change;
1990 
1991 	val = ucontrol->value.enumerated.item[0] % 3;
1992 	spin_lock_irq(&korg1212->lock);
1993 	change = val != korg1212->clkSource;
1994         snd_korg1212_SetClockSource(korg1212, val);
1995 	spin_unlock_irq(&korg1212->lock);
1996 	return change;
1997 }
1998 
1999 #define MON_MIXER(ord,c_name)									\
2000         {											\
2001                 .access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,	\
2002                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,					\
2003                 .name =		c_name " Monitor Volume",					\
2004                 .info =		snd_korg1212_control_volume_info,				\
2005                 .get =		snd_korg1212_control_volume_get,				\
2006                 .put =		snd_korg1212_control_volume_put,				\
2007 		.private_value = ord,								\
2008         },                                                                                      \
2009         {											\
2010                 .access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,	\
2011                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,					\
2012                 .name =		c_name " Monitor Route",					\
2013                 .info =		snd_korg1212_control_route_info,				\
2014                 .get =		snd_korg1212_control_route_get,					\
2015                 .put =		snd_korg1212_control_route_put,					\
2016 		.private_value = ord,								\
2017         },                                                                                      \
2018         {											\
2019                 .access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,	\
2020                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,					\
2021                 .name =		c_name " Monitor Phase Invert",					\
2022                 .info =		snd_korg1212_control_phase_info,				\
2023                 .get =		snd_korg1212_control_phase_get,					\
2024                 .put =		snd_korg1212_control_phase_put,					\
2025 		.private_value = ord,								\
2026         }
2027 
2028 static struct snd_kcontrol_new snd_korg1212_controls[] = {
2029         MON_MIXER(8, "Analog"),
2030 	MON_MIXER(10, "SPDIF"),
2031         MON_MIXER(0, "ADAT-1"), MON_MIXER(1, "ADAT-2"), MON_MIXER(2, "ADAT-3"), MON_MIXER(3, "ADAT-4"),
2032         MON_MIXER(4, "ADAT-5"), MON_MIXER(5, "ADAT-6"), MON_MIXER(6, "ADAT-7"), MON_MIXER(7, "ADAT-8"),
2033 	{
2034                 .access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,
2035                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2036                 .name =		"Sync Source",
2037                 .info =		snd_korg1212_control_sync_info,
2038                 .get =		snd_korg1212_control_sync_get,
2039                 .put =		snd_korg1212_control_sync_put,
2040         },
2041         {
2042                 .access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE,
2043                 .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2044                 .name =		"ADC Attenuation",
2045                 .info =		snd_korg1212_control_info,
2046                 .get =		snd_korg1212_control_get,
2047                 .put =		snd_korg1212_control_put,
2048         }
2049 };
2050 
2051 /*
2052  * proc interface
2053  */
2054 
2055 static void snd_korg1212_proc_read(struct snd_info_entry *entry,
2056 				   struct snd_info_buffer *buffer)
2057 {
2058 	int n;
2059 	struct snd_korg1212 *korg1212 = entry->private_data;
2060 
2061 	snd_iprintf(buffer, korg1212->card->longname);
2062 	snd_iprintf(buffer, " (index #%d)\n", korg1212->card->number + 1);
2063 	snd_iprintf(buffer, "\nGeneral settings\n");
2064 	snd_iprintf(buffer, "    period size: %Zd bytes\n", K1212_PERIOD_BYTES);
2065 	snd_iprintf(buffer, "     clock mode: %s\n", clockSourceName[korg1212->clkSrcRate] );
2066 	snd_iprintf(buffer, "  left ADC Sens: %d\n", korg1212->leftADCInSens );
2067 	snd_iprintf(buffer, " right ADC Sens: %d\n", korg1212->rightADCInSens );
2068         snd_iprintf(buffer, "    Volume Info:\n");
2069         for (n=0; n<kAudioChannels; n++)
2070                 snd_iprintf(buffer, " Channel %d: %s -> %s [%d]\n", n,
2071                                     channelName[n],
2072                                     channelName[korg1212->sharedBufferPtr->routeData[n]],
2073                                     korg1212->sharedBufferPtr->volumeData[n]);
2074 	snd_iprintf(buffer, "\nGeneral status\n");
2075         snd_iprintf(buffer, " ADAT Time Code: %d\n", korg1212->sharedBufferPtr->AdatTimeCode);
2076         snd_iprintf(buffer, "     Card State: %s\n", stateName[korg1212->cardState]);
2077         snd_iprintf(buffer, "Idle mon. State: %d\n", korg1212->idleMonitorOn);
2078         snd_iprintf(buffer, "Cmd retry count: %d\n", korg1212->cmdRetryCount);
2079         snd_iprintf(buffer, "      Irq count: %ld\n", korg1212->irqcount);
2080         snd_iprintf(buffer, "    Error count: %ld\n", korg1212->totalerrorcnt);
2081 }
2082 
2083 static void __devinit snd_korg1212_proc_init(struct snd_korg1212 *korg1212)
2084 {
2085 	struct snd_info_entry *entry;
2086 
2087 	if (! snd_card_proc_new(korg1212->card, "korg1212", &entry))
2088 		snd_info_set_text_ops(entry, korg1212, snd_korg1212_proc_read);
2089 }
2090 
2091 static int
2092 snd_korg1212_free(struct snd_korg1212 *korg1212)
2093 {
2094         snd_korg1212_TurnOffIdleMonitor(korg1212);
2095 
2096         if (korg1212->irq >= 0) {
2097                 synchronize_irq(korg1212->irq);
2098                 snd_korg1212_DisableCardInterrupts(korg1212);
2099                 free_irq(korg1212->irq, korg1212);
2100                 korg1212->irq = -1;
2101         }
2102 
2103         if (korg1212->iobase != NULL) {
2104                 iounmap(korg1212->iobase);
2105                 korg1212->iobase = NULL;
2106         }
2107 
2108 	pci_release_regions(korg1212->pci);
2109 
2110         // ----------------------------------------------------
2111         // free up memory resources used for the DSP download.
2112         // ----------------------------------------------------
2113         if (korg1212->dma_dsp.area) {
2114         	snd_dma_free_pages(&korg1212->dma_dsp);
2115         	korg1212->dma_dsp.area = NULL;
2116         }
2117 
2118 #ifndef K1212_LARGEALLOC
2119 
2120         // ------------------------------------------------------
2121         // free up memory resources used for the Play/Rec Buffers
2122         // ------------------------------------------------------
2123 	if (korg1212->dma_play.area) {
2124 		snd_dma_free_pages(&korg1212->dma_play);
2125 		korg1212->dma_play.area = NULL;
2126         }
2127 
2128 	if (korg1212->dma_rec.area) {
2129 		snd_dma_free_pages(&korg1212->dma_rec);
2130 		korg1212->dma_rec.area = NULL;
2131         }
2132 
2133 #endif
2134 
2135         // ----------------------------------------------------
2136         // free up memory resources used for the Shared Buffers
2137         // ----------------------------------------------------
2138 	if (korg1212->dma_shared.area) {
2139 		snd_dma_free_pages(&korg1212->dma_shared);
2140 		korg1212->dma_shared.area = NULL;
2141         }
2142 
2143 	pci_disable_device(korg1212->pci);
2144         kfree(korg1212);
2145         return 0;
2146 }
2147 
2148 static int snd_korg1212_dev_free(struct snd_device *device)
2149 {
2150         struct snd_korg1212 *korg1212 = device->device_data;
2151         K1212_DEBUG_PRINTK("K1212_DEBUG: Freeing device\n");
2152 	return snd_korg1212_free(korg1212);
2153 }
2154 
2155 static int __devinit snd_korg1212_create(struct snd_card *card, struct pci_dev *pci,
2156                                          struct snd_korg1212 ** rchip)
2157 
2158 {
2159         int err, rc;
2160         unsigned int i;
2161 	unsigned ioport_size, iomem_size, iomem2_size;
2162         struct snd_korg1212 * korg1212;
2163 
2164         static struct snd_device_ops ops = {
2165                 .dev_free = snd_korg1212_dev_free,
2166         };
2167 
2168         * rchip = NULL;
2169         if ((err = pci_enable_device(pci)) < 0)
2170                 return err;
2171 
2172         korg1212 = kzalloc(sizeof(*korg1212), GFP_KERNEL);
2173         if (korg1212 == NULL) {
2174 		pci_disable_device(pci);
2175                 return -ENOMEM;
2176 	}
2177 
2178 	korg1212->card = card;
2179 	korg1212->pci = pci;
2180 
2181         init_waitqueue_head(&korg1212->wait);
2182         spin_lock_init(&korg1212->lock);
2183 	mutex_init(&korg1212->open_mutex);
2184 	init_timer(&korg1212->timer);
2185 	korg1212->timer.function = snd_korg1212_timer_func;
2186 	korg1212->timer.data = (unsigned long)korg1212;
2187 
2188         korg1212->irq = -1;
2189         korg1212->clkSource = K1212_CLKIDX_Local;
2190         korg1212->clkRate = 44100;
2191         korg1212->inIRQ = 0;
2192         korg1212->running = 0;
2193 	korg1212->opencnt = 0;
2194 	korg1212->playcnt = 0;
2195 	korg1212->setcnt = 0;
2196 	korg1212->totalerrorcnt = 0;
2197 	korg1212->playback_pid = -1;
2198 	korg1212->capture_pid = -1;
2199         snd_korg1212_setCardState(korg1212, K1212_STATE_UNINITIALIZED);
2200         korg1212->idleMonitorOn = 0;
2201         korg1212->clkSrcRate = K1212_CLKIDX_LocalAt44_1K;
2202         korg1212->leftADCInSens = k1212MaxADCSens;
2203         korg1212->rightADCInSens = k1212MaxADCSens;
2204 
2205         for (i=0; i<kAudioChannels; i++)
2206                 korg1212->volumePhase[i] = 0;
2207 
2208 	if ((err = pci_request_regions(pci, "korg1212")) < 0) {
2209 		kfree(korg1212);
2210 		pci_disable_device(pci);
2211 		return err;
2212 	}
2213 
2214         korg1212->iomem = pci_resource_start(korg1212->pci, 0);
2215         korg1212->ioport = pci_resource_start(korg1212->pci, 1);
2216         korg1212->iomem2 = pci_resource_start(korg1212->pci, 2);
2217 
2218 	iomem_size = pci_resource_len(korg1212->pci, 0);
2219 	ioport_size = pci_resource_len(korg1212->pci, 1);
2220 	iomem2_size = pci_resource_len(korg1212->pci, 2);
2221 
2222         K1212_DEBUG_PRINTK("K1212_DEBUG: resources:\n"
2223                    "    iomem = 0x%lx (%d)\n"
2224 		   "    ioport  = 0x%lx (%d)\n"
2225                    "    iomem = 0x%lx (%d)\n"
2226 		   "    [%s]\n",
2227 		   korg1212->iomem, iomem_size,
2228 		   korg1212->ioport, ioport_size,
2229 		   korg1212->iomem2, iomem2_size,
2230 		   stateName[korg1212->cardState]);
2231 
2232         if ((korg1212->iobase = ioremap(korg1212->iomem, iomem_size)) == NULL) {
2233 		snd_printk(KERN_ERR "korg1212: unable to remap memory region 0x%lx-0x%lx\n", korg1212->iomem,
2234                            korg1212->iomem + iomem_size - 1);
2235                 snd_korg1212_free(korg1212);
2236                 return -EBUSY;
2237         }
2238 
2239         err = request_irq(pci->irq, snd_korg1212_interrupt,
2240                           SA_INTERRUPT|SA_SHIRQ,
2241                           "korg1212", korg1212);
2242 
2243         if (err) {
2244 		snd_printk(KERN_ERR "korg1212: unable to grab IRQ %d\n", pci->irq);
2245                 snd_korg1212_free(korg1212);
2246                 return -EBUSY;
2247         }
2248 
2249         korg1212->irq = pci->irq;
2250 
2251 	pci_set_master(korg1212->pci);
2252 
2253         korg1212->statusRegPtr = (u32 __iomem *) (korg1212->iobase + STATUS_REG_OFFSET);
2254         korg1212->outDoorbellPtr = (u32 __iomem *) (korg1212->iobase + OUT_DOORBELL_OFFSET);
2255         korg1212->inDoorbellPtr = (u32 __iomem *) (korg1212->iobase + IN_DOORBELL_OFFSET);
2256         korg1212->mailbox0Ptr = (u32 __iomem *) (korg1212->iobase + MAILBOX0_OFFSET);
2257         korg1212->mailbox1Ptr = (u32 __iomem *) (korg1212->iobase + MAILBOX1_OFFSET);
2258         korg1212->mailbox2Ptr = (u32 __iomem *) (korg1212->iobase + MAILBOX2_OFFSET);
2259         korg1212->mailbox3Ptr = (u32 __iomem *) (korg1212->iobase + MAILBOX3_OFFSET);
2260         korg1212->controlRegPtr = (u32 __iomem *) (korg1212->iobase + PCI_CONTROL_OFFSET);
2261         korg1212->sensRegPtr = (u16 __iomem *) (korg1212->iobase + SENS_CONTROL_OFFSET);
2262         korg1212->idRegPtr = (u32 __iomem *) (korg1212->iobase + DEV_VEND_ID_OFFSET);
2263 
2264         K1212_DEBUG_PRINTK("K1212_DEBUG: card registers:\n"
2265                    "    Status register = 0x%p\n"
2266                    "    OutDoorbell     = 0x%p\n"
2267                    "    InDoorbell      = 0x%p\n"
2268                    "    Mailbox0        = 0x%p\n"
2269                    "    Mailbox1        = 0x%p\n"
2270                    "    Mailbox2        = 0x%p\n"
2271                    "    Mailbox3        = 0x%p\n"
2272                    "    ControlReg      = 0x%p\n"
2273                    "    SensReg         = 0x%p\n"
2274                    "    IDReg           = 0x%p\n"
2275 		   "    [%s]\n",
2276                    korg1212->statusRegPtr,
2277 		   korg1212->outDoorbellPtr,
2278 		   korg1212->inDoorbellPtr,
2279                    korg1212->mailbox0Ptr,
2280                    korg1212->mailbox1Ptr,
2281                    korg1212->mailbox2Ptr,
2282                    korg1212->mailbox3Ptr,
2283                    korg1212->controlRegPtr,
2284                    korg1212->sensRegPtr,
2285                    korg1212->idRegPtr,
2286 		   stateName[korg1212->cardState]);
2287 
2288 	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
2289 				sizeof(struct KorgSharedBuffer), &korg1212->dma_shared) < 0) {
2290 		snd_printk(KERN_ERR "korg1212: can not allocate shared buffer memory (%Zd bytes)\n", sizeof(struct KorgSharedBuffer));
2291                 snd_korg1212_free(korg1212);
2292                 return -ENOMEM;
2293         }
2294         korg1212->sharedBufferPtr = (struct KorgSharedBuffer *)korg1212->dma_shared.area;
2295         korg1212->sharedBufferPhy = korg1212->dma_shared.addr;
2296 
2297         K1212_DEBUG_PRINTK("K1212_DEBUG: Shared Buffer Area = 0x%p (0x%08lx), %d bytes\n", korg1212->sharedBufferPtr, korg1212->sharedBufferPhy, sizeof(struct KorgSharedBuffer));
2298 
2299 #ifndef K1212_LARGEALLOC
2300 
2301         korg1212->DataBufsSize = sizeof(struct KorgAudioBuffer) * kNumBuffers;
2302 
2303 	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
2304 				korg1212->DataBufsSize, &korg1212->dma_play) < 0) {
2305 		snd_printk(KERN_ERR "korg1212: can not allocate play data buffer memory (%d bytes)\n", korg1212->DataBufsSize);
2306                 snd_korg1212_free(korg1212);
2307                 return -ENOMEM;
2308         }
2309 	korg1212->playDataBufsPtr = (struct KorgAudioBuffer *)korg1212->dma_play.area;
2310 	korg1212->PlayDataPhy = korg1212->dma_play.addr;
2311 
2312         K1212_DEBUG_PRINTK("K1212_DEBUG: Play Data Area = 0x%p (0x%08x), %d bytes\n",
2313 		korg1212->playDataBufsPtr, korg1212->PlayDataPhy, korg1212->DataBufsSize);
2314 
2315 	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
2316 				korg1212->DataBufsSize, &korg1212->dma_rec) < 0) {
2317 		snd_printk(KERN_ERR "korg1212: can not allocate record data buffer memory (%d bytes)\n", korg1212->DataBufsSize);
2318                 snd_korg1212_free(korg1212);
2319                 return -ENOMEM;
2320         }
2321         korg1212->recordDataBufsPtr = (struct KorgAudioBuffer *)korg1212->dma_rec.area;
2322         korg1212->RecDataPhy = korg1212->dma_rec.addr;
2323 
2324         K1212_DEBUG_PRINTK("K1212_DEBUG: Record Data Area = 0x%p (0x%08x), %d bytes\n",
2325 		korg1212->recordDataBufsPtr, korg1212->RecDataPhy, korg1212->DataBufsSize);
2326 
2327 #else // K1212_LARGEALLOC
2328 
2329         korg1212->recordDataBufsPtr = korg1212->sharedBufferPtr->recordDataBufs;
2330         korg1212->playDataBufsPtr = korg1212->sharedBufferPtr->playDataBufs;
2331         korg1212->PlayDataPhy = (u32) &((struct KorgSharedBuffer *) korg1212->sharedBufferPhy)->playDataBufs;
2332         korg1212->RecDataPhy  = (u32) &((struct KorgSharedBuffer *) korg1212->sharedBufferPhy)->recordDataBufs;
2333 
2334 #endif // K1212_LARGEALLOC
2335 
2336         korg1212->dspCodeSize = sizeof (dspCode);
2337 
2338         korg1212->VolumeTablePhy = korg1212->sharedBufferPhy +
2339 		offsetof(struct KorgSharedBuffer, volumeData);
2340         korg1212->RoutingTablePhy = korg1212->sharedBufferPhy +
2341 		offsetof(struct KorgSharedBuffer, routeData);
2342         korg1212->AdatTimeCodePhy = korg1212->sharedBufferPhy +
2343 		offsetof(struct KorgSharedBuffer, AdatTimeCode);
2344 
2345 	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
2346 				korg1212->dspCodeSize, &korg1212->dma_dsp) < 0) {
2347 		snd_printk(KERN_ERR "korg1212: can not allocate dsp code memory (%d bytes)\n", korg1212->dspCodeSize);
2348                 snd_korg1212_free(korg1212);
2349                 return -ENOMEM;
2350         }
2351 
2352         K1212_DEBUG_PRINTK("K1212_DEBUG: DSP Code area = 0x%p (0x%08x) %d bytes [%s]\n",
2353 		   korg1212->dma_dsp.area, korg1212->dma_dsp.addr, korg1212->dspCodeSize,
2354 		   stateName[korg1212->cardState]);
2355 
2356 	rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_RebootCard, 0, 0, 0, 0);
2357 
2358 	if (rc)
2359 		K1212_DEBUG_PRINTK("K1212_DEBUG: Reboot Card - RC = %d [%s]\n", rc, stateName[korg1212->cardState]);
2360 
2361         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, korg1212, &ops)) < 0) {
2362                 snd_korg1212_free(korg1212);
2363                 return err;
2364         }
2365 
2366 	snd_korg1212_EnableCardInterrupts(korg1212);
2367 
2368 	mdelay(CARD_BOOT_DELAY_IN_MS);
2369 
2370         if (snd_korg1212_downloadDSPCode(korg1212))
2371         	return -EBUSY;
2372 
2373         K1212_DEBUG_PRINTK("korg1212: dspMemPhy = %08x U[%08x], "
2374                "PlayDataPhy = %08x L[%08x]\n"
2375 	       "korg1212: RecDataPhy = %08x L[%08x], "
2376                "VolumeTablePhy = %08x L[%08x]\n"
2377                "korg1212: RoutingTablePhy = %08x L[%08x], "
2378                "AdatTimeCodePhy = %08x L[%08x]\n",
2379 	       (int)korg1212->dma_dsp.addr,    UpperWordSwap(korg1212->dma_dsp.addr),
2380                korg1212->PlayDataPhy,     LowerWordSwap(korg1212->PlayDataPhy),
2381                korg1212->RecDataPhy,      LowerWordSwap(korg1212->RecDataPhy),
2382                korg1212->VolumeTablePhy,  LowerWordSwap(korg1212->VolumeTablePhy),
2383                korg1212->RoutingTablePhy, LowerWordSwap(korg1212->RoutingTablePhy),
2384                korg1212->AdatTimeCodePhy, LowerWordSwap(korg1212->AdatTimeCodePhy));
2385 
2386         if ((err = snd_pcm_new(korg1212->card, "korg1212", 0, 1, 1, &korg1212->pcm)) < 0)
2387                 return err;
2388 
2389 	korg1212->pcm->private_data = korg1212;
2390         korg1212->pcm->private_free = snd_korg1212_free_pcm;
2391         strcpy(korg1212->pcm->name, "korg1212");
2392 
2393         snd_pcm_set_ops(korg1212->pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_korg1212_playback_ops);
2394 
2395 	snd_pcm_set_ops(korg1212->pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_korg1212_capture_ops);
2396 
2397 	korg1212->pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
2398 
2399         for (i = 0; i < ARRAY_SIZE(snd_korg1212_controls); i++) {
2400                 err = snd_ctl_add(korg1212->card, snd_ctl_new1(&snd_korg1212_controls[i], korg1212));
2401                 if (err < 0)
2402                         return err;
2403         }
2404 
2405         snd_korg1212_proc_init(korg1212);
2406 
2407 	snd_card_set_dev(card, &pci->dev);
2408 
2409         * rchip = korg1212;
2410 	return 0;
2411 
2412 }
2413 
2414 /*
2415  * Card initialisation
2416  */
2417 
2418 static int __devinit
2419 snd_korg1212_probe(struct pci_dev *pci,
2420 		const struct pci_device_id *pci_id)
2421 {
2422 	static int dev;
2423 	struct snd_korg1212 *korg1212;
2424 	struct snd_card *card;
2425 	int err;
2426 
2427 	if (dev >= SNDRV_CARDS) {
2428 		return -ENODEV;
2429 	}
2430 	if (!enable[dev]) {
2431 		dev++;
2432 		return -ENOENT;
2433 	}
2434 	card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
2435         if (card == NULL)
2436 		return -ENOMEM;
2437 
2438         if ((err = snd_korg1212_create(card, pci, &korg1212)) < 0) {
2439 		snd_card_free(card);
2440 		return err;
2441 	}
2442 
2443 	strcpy(card->driver, "korg1212");
2444 	strcpy(card->shortname, "korg1212");
2445 	sprintf(card->longname, "%s at 0x%lx, irq %d", card->shortname,
2446 		korg1212->iomem, korg1212->irq);
2447 
2448         K1212_DEBUG_PRINTK("K1212_DEBUG: %s\n", card->longname);
2449 
2450 	if ((err = snd_card_register(card)) < 0) {
2451 		snd_card_free(card);
2452 		return err;
2453 	}
2454 	pci_set_drvdata(pci, card);
2455 	dev++;
2456 	return 0;
2457 }
2458 
2459 static void __devexit snd_korg1212_remove(struct pci_dev *pci)
2460 {
2461 	snd_card_free(pci_get_drvdata(pci));
2462 	pci_set_drvdata(pci, NULL);
2463 }
2464 
2465 static struct pci_driver driver = {
2466 	.name = "korg1212",
2467 	.id_table = snd_korg1212_ids,
2468 	.probe = snd_korg1212_probe,
2469 	.remove = __devexit_p(snd_korg1212_remove),
2470 };
2471 
2472 static int __init alsa_card_korg1212_init(void)
2473 {
2474 	return pci_register_driver(&driver);
2475 }
2476 
2477 static void __exit alsa_card_korg1212_exit(void)
2478 {
2479 	pci_unregister_driver(&driver);
2480 }
2481 
2482 module_init(alsa_card_korg1212_init)
2483 module_exit(alsa_card_korg1212_exit)
2484