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v5.9
   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 *   ALSA driver for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST audio
   4 *   interfaces 
   5 *
   6 *	Copyright (c) 2000, 2001 Anders Torger <torger@ludd.luth.se>
   7 *    
   8 *      Thanks to Henk Hesselink <henk@anda.nl> for the analog volume control
   9 *      code.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  10 */      
  11
  12#include <linux/delay.h>
  13#include <linux/init.h>
  14#include <linux/interrupt.h>
  15#include <linux/pci.h>
  16#include <linux/module.h>
  17#include <linux/vmalloc.h>
  18#include <linux/io.h>
  19
  20#include <sound/core.h>
  21#include <sound/info.h>
  22#include <sound/control.h>
  23#include <sound/pcm.h>
  24#include <sound/pcm_params.h>
  25#include <sound/asoundef.h>
  26#include <sound/initval.h>
  27
  28/* note, two last pcis should be equal, it is not a bug */
  29
  30MODULE_AUTHOR("Anders Torger <torger@ludd.luth.se>");
  31MODULE_DESCRIPTION("RME Digi96, Digi96/8, Digi96/8 PRO, Digi96/8 PST, "
  32		   "Digi96/8 PAD");
  33MODULE_LICENSE("GPL");
  34MODULE_SUPPORTED_DEVICE("{{RME,Digi96},"
  35		"{RME,Digi96/8},"
  36		"{RME,Digi96/8 PRO},"
  37		"{RME,Digi96/8 PST},"
  38		"{RME,Digi96/8 PAD}}");
  39
  40static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
  41static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
  42static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;	/* Enable this card */
  43
  44module_param_array(index, int, NULL, 0444);
  45MODULE_PARM_DESC(index, "Index value for RME Digi96 soundcard.");
  46module_param_array(id, charp, NULL, 0444);
  47MODULE_PARM_DESC(id, "ID string for RME Digi96 soundcard.");
  48module_param_array(enable, bool, NULL, 0444);
  49MODULE_PARM_DESC(enable, "Enable RME Digi96 soundcard.");
  50
  51/*
  52 * Defines for RME Digi96 series, from internal RME reference documents
  53 * dated 12.01.00
  54 */
  55
  56#define RME96_SPDIF_NCHANNELS 2
  57
  58/* Playback and capture buffer size */
  59#define RME96_BUFFER_SIZE 0x10000
  60
  61/* IO area size */
  62#define RME96_IO_SIZE 0x60000
  63
  64/* IO area offsets */
  65#define RME96_IO_PLAY_BUFFER      0x0
  66#define RME96_IO_REC_BUFFER       0x10000
  67#define RME96_IO_CONTROL_REGISTER 0x20000
  68#define RME96_IO_ADDITIONAL_REG   0x20004
  69#define RME96_IO_CONFIRM_PLAY_IRQ 0x20008
  70#define RME96_IO_CONFIRM_REC_IRQ  0x2000C
  71#define RME96_IO_SET_PLAY_POS     0x40000
  72#define RME96_IO_RESET_PLAY_POS   0x4FFFC
  73#define RME96_IO_SET_REC_POS      0x50000
  74#define RME96_IO_RESET_REC_POS    0x5FFFC
  75#define RME96_IO_GET_PLAY_POS     0x20000
  76#define RME96_IO_GET_REC_POS      0x30000
  77
  78/* Write control register bits */
  79#define RME96_WCR_START     (1 << 0)
  80#define RME96_WCR_START_2   (1 << 1)
  81#define RME96_WCR_GAIN_0    (1 << 2)
  82#define RME96_WCR_GAIN_1    (1 << 3)
  83#define RME96_WCR_MODE24    (1 << 4)
  84#define RME96_WCR_MODE24_2  (1 << 5)
  85#define RME96_WCR_BM        (1 << 6)
  86#define RME96_WCR_BM_2      (1 << 7)
  87#define RME96_WCR_ADAT      (1 << 8)
  88#define RME96_WCR_FREQ_0    (1 << 9)
  89#define RME96_WCR_FREQ_1    (1 << 10)
  90#define RME96_WCR_DS        (1 << 11)
  91#define RME96_WCR_PRO       (1 << 12)
  92#define RME96_WCR_EMP       (1 << 13)
  93#define RME96_WCR_SEL       (1 << 14)
  94#define RME96_WCR_MASTER    (1 << 15)
  95#define RME96_WCR_PD        (1 << 16)
  96#define RME96_WCR_INP_0     (1 << 17)
  97#define RME96_WCR_INP_1     (1 << 18)
  98#define RME96_WCR_THRU_0    (1 << 19)
  99#define RME96_WCR_THRU_1    (1 << 20)
 100#define RME96_WCR_THRU_2    (1 << 21)
 101#define RME96_WCR_THRU_3    (1 << 22)
 102#define RME96_WCR_THRU_4    (1 << 23)
 103#define RME96_WCR_THRU_5    (1 << 24)
 104#define RME96_WCR_THRU_6    (1 << 25)
 105#define RME96_WCR_THRU_7    (1 << 26)
 106#define RME96_WCR_DOLBY     (1 << 27)
 107#define RME96_WCR_MONITOR_0 (1 << 28)
 108#define RME96_WCR_MONITOR_1 (1 << 29)
 109#define RME96_WCR_ISEL      (1 << 30)
 110#define RME96_WCR_IDIS      (1 << 31)
 111
 112#define RME96_WCR_BITPOS_GAIN_0 2
 113#define RME96_WCR_BITPOS_GAIN_1 3
 114#define RME96_WCR_BITPOS_FREQ_0 9
 115#define RME96_WCR_BITPOS_FREQ_1 10
 116#define RME96_WCR_BITPOS_INP_0 17
 117#define RME96_WCR_BITPOS_INP_1 18
 118#define RME96_WCR_BITPOS_MONITOR_0 28
 119#define RME96_WCR_BITPOS_MONITOR_1 29
 120
 121/* Read control register bits */
 122#define RME96_RCR_AUDIO_ADDR_MASK 0xFFFF
 123#define RME96_RCR_IRQ_2     (1 << 16)
 124#define RME96_RCR_T_OUT     (1 << 17)
 125#define RME96_RCR_DEV_ID_0  (1 << 21)
 126#define RME96_RCR_DEV_ID_1  (1 << 22)
 127#define RME96_RCR_LOCK      (1 << 23)
 128#define RME96_RCR_VERF      (1 << 26)
 129#define RME96_RCR_F0        (1 << 27)
 130#define RME96_RCR_F1        (1 << 28)
 131#define RME96_RCR_F2        (1 << 29)
 132#define RME96_RCR_AUTOSYNC  (1 << 30)
 133#define RME96_RCR_IRQ       (1 << 31)
 134
 135#define RME96_RCR_BITPOS_F0 27
 136#define RME96_RCR_BITPOS_F1 28
 137#define RME96_RCR_BITPOS_F2 29
 138
 139/* Additional register bits */
 140#define RME96_AR_WSEL       (1 << 0)
 141#define RME96_AR_ANALOG     (1 << 1)
 142#define RME96_AR_FREQPAD_0  (1 << 2)
 143#define RME96_AR_FREQPAD_1  (1 << 3)
 144#define RME96_AR_FREQPAD_2  (1 << 4)
 145#define RME96_AR_PD2        (1 << 5)
 146#define RME96_AR_DAC_EN     (1 << 6)
 147#define RME96_AR_CLATCH     (1 << 7)
 148#define RME96_AR_CCLK       (1 << 8)
 149#define RME96_AR_CDATA      (1 << 9)
 150
 151#define RME96_AR_BITPOS_F0 2
 152#define RME96_AR_BITPOS_F1 3
 153#define RME96_AR_BITPOS_F2 4
 154
 155/* Monitor tracks */
 156#define RME96_MONITOR_TRACKS_1_2 0
 157#define RME96_MONITOR_TRACKS_3_4 1
 158#define RME96_MONITOR_TRACKS_5_6 2
 159#define RME96_MONITOR_TRACKS_7_8 3
 160
 161/* Attenuation */
 162#define RME96_ATTENUATION_0 0
 163#define RME96_ATTENUATION_6 1
 164#define RME96_ATTENUATION_12 2
 165#define RME96_ATTENUATION_18 3
 166
 167/* Input types */
 168#define RME96_INPUT_OPTICAL 0
 169#define RME96_INPUT_COAXIAL 1
 170#define RME96_INPUT_INTERNAL 2
 171#define RME96_INPUT_XLR 3
 172#define RME96_INPUT_ANALOG 4
 173
 174/* Clock modes */
 175#define RME96_CLOCKMODE_SLAVE 0
 176#define RME96_CLOCKMODE_MASTER 1
 177#define RME96_CLOCKMODE_WORDCLOCK 2
 178
 179/* Block sizes in bytes */
 180#define RME96_SMALL_BLOCK_SIZE 2048
 181#define RME96_LARGE_BLOCK_SIZE 8192
 182
 183/* Volume control */
 184#define RME96_AD1852_VOL_BITS 14
 185#define RME96_AD1855_VOL_BITS 10
 186
 187/* Defines for snd_rme96_trigger */
 188#define RME96_TB_START_PLAYBACK 1
 189#define RME96_TB_START_CAPTURE 2
 190#define RME96_TB_STOP_PLAYBACK 4
 191#define RME96_TB_STOP_CAPTURE 8
 192#define RME96_TB_RESET_PLAYPOS 16
 193#define RME96_TB_RESET_CAPTUREPOS 32
 194#define RME96_TB_CLEAR_PLAYBACK_IRQ 64
 195#define RME96_TB_CLEAR_CAPTURE_IRQ 128
 196#define RME96_RESUME_PLAYBACK	(RME96_TB_START_PLAYBACK)
 197#define RME96_RESUME_CAPTURE	(RME96_TB_START_CAPTURE)
 198#define RME96_RESUME_BOTH	(RME96_RESUME_PLAYBACK \
 199				| RME96_RESUME_CAPTURE)
 200#define RME96_START_PLAYBACK	(RME96_TB_START_PLAYBACK \
 201				| RME96_TB_RESET_PLAYPOS)
 202#define RME96_START_CAPTURE	(RME96_TB_START_CAPTURE \
 203				| RME96_TB_RESET_CAPTUREPOS)
 204#define RME96_START_BOTH	(RME96_START_PLAYBACK \
 205				| RME96_START_CAPTURE)
 206#define RME96_STOP_PLAYBACK	(RME96_TB_STOP_PLAYBACK \
 207				| RME96_TB_CLEAR_PLAYBACK_IRQ)
 208#define RME96_STOP_CAPTURE	(RME96_TB_STOP_CAPTURE \
 209				| RME96_TB_CLEAR_CAPTURE_IRQ)
 210#define RME96_STOP_BOTH		(RME96_STOP_PLAYBACK \
 211				| RME96_STOP_CAPTURE)
 212
 213struct rme96 {
 214	spinlock_t    lock;
 215	int irq;
 216	unsigned long port;
 217	void __iomem *iobase;
 218	
 219	u32 wcreg;    /* cached write control register value */
 220	u32 wcreg_spdif;		/* S/PDIF setup */
 221	u32 wcreg_spdif_stream;		/* S/PDIF setup (temporary) */
 222	u32 rcreg;    /* cached read control register value */
 223	u32 areg;     /* cached additional register value */
 224	u16 vol[2]; /* cached volume of analog output */
 225
 226	u8 rev; /* card revision number */
 227
 228#ifdef CONFIG_PM_SLEEP
 229	u32 playback_pointer;
 230	u32 capture_pointer;
 231	void *playback_suspend_buffer;
 232	void *capture_suspend_buffer;
 233#endif
 234
 235	struct snd_pcm_substream *playback_substream;
 236	struct snd_pcm_substream *capture_substream;
 237
 238	int playback_frlog; /* log2 of framesize */
 239	int capture_frlog;
 240	
 241        size_t playback_periodsize; /* in bytes, zero if not used */
 242	size_t capture_periodsize; /* in bytes, zero if not used */
 243
 244	struct snd_card *card;
 245	struct snd_pcm *spdif_pcm;
 246	struct snd_pcm *adat_pcm; 
 247	struct pci_dev     *pci;
 248	struct snd_kcontrol   *spdif_ctl;
 249};
 250
 251static const struct pci_device_id snd_rme96_ids[] = {
 252	{ PCI_VDEVICE(XILINX, PCI_DEVICE_ID_RME_DIGI96), 0, },
 253	{ PCI_VDEVICE(XILINX, PCI_DEVICE_ID_RME_DIGI96_8), 0, },
 254	{ PCI_VDEVICE(XILINX, PCI_DEVICE_ID_RME_DIGI96_8_PRO), 0, },
 255	{ PCI_VDEVICE(XILINX, PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST), 0, },
 256	{ 0, }
 257};
 258
 259MODULE_DEVICE_TABLE(pci, snd_rme96_ids);
 260
 261#define RME96_ISPLAYING(rme96) ((rme96)->wcreg & RME96_WCR_START)
 262#define RME96_ISRECORDING(rme96) ((rme96)->wcreg & RME96_WCR_START_2)
 263#define	RME96_HAS_ANALOG_IN(rme96) ((rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST)
 264#define	RME96_HAS_ANALOG_OUT(rme96) ((rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PRO || \
 265				     (rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST)
 266#define	RME96_DAC_IS_1852(rme96) (RME96_HAS_ANALOG_OUT(rme96) && (rme96)->rev >= 4)
 267#define	RME96_DAC_IS_1855(rme96) (((rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST && (rme96)->rev < 4) || \
 268			          ((rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PRO && (rme96)->rev == 2))
 269#define	RME96_185X_MAX_OUT(rme96) ((1 << (RME96_DAC_IS_1852(rme96) ? RME96_AD1852_VOL_BITS : RME96_AD1855_VOL_BITS)) - 1)
 270
 271static int
 272snd_rme96_playback_prepare(struct snd_pcm_substream *substream);
 273
 274static int
 275snd_rme96_capture_prepare(struct snd_pcm_substream *substream);
 276
 277static int
 278snd_rme96_playback_trigger(struct snd_pcm_substream *substream, 
 279			   int cmd);
 280
 281static int
 282snd_rme96_capture_trigger(struct snd_pcm_substream *substream, 
 283			  int cmd);
 284
 285static snd_pcm_uframes_t
 286snd_rme96_playback_pointer(struct snd_pcm_substream *substream);
 287
 288static snd_pcm_uframes_t
 289snd_rme96_capture_pointer(struct snd_pcm_substream *substream);
 290
 291static void snd_rme96_proc_init(struct rme96 *rme96);
 292
 293static int
 294snd_rme96_create_switches(struct snd_card *card,
 295			  struct rme96 *rme96);
 296
 297static int
 298snd_rme96_getinputtype(struct rme96 *rme96);
 299
 300static inline unsigned int
 301snd_rme96_playback_ptr(struct rme96 *rme96)
 302{
 303	return (readl(rme96->iobase + RME96_IO_GET_PLAY_POS)
 304		& RME96_RCR_AUDIO_ADDR_MASK) >> rme96->playback_frlog;
 305}
 306
 307static inline unsigned int
 308snd_rme96_capture_ptr(struct rme96 *rme96)
 309{
 310	return (readl(rme96->iobase + RME96_IO_GET_REC_POS)
 311		& RME96_RCR_AUDIO_ADDR_MASK) >> rme96->capture_frlog;
 312}
 313
 314static int
 315snd_rme96_playback_silence(struct snd_pcm_substream *substream,
 316			   int channel, unsigned long pos, unsigned long count)
 317{
 318	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
 319
 320	memset_io(rme96->iobase + RME96_IO_PLAY_BUFFER + pos,
 321		  0, count);
 322	return 0;
 323}
 324
 325static int
 326snd_rme96_playback_copy(struct snd_pcm_substream *substream,
 327			int channel, unsigned long pos,
 328			void __user *src, unsigned long count)
 329{
 330	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
 331
 332	return copy_from_user_toio(rme96->iobase + RME96_IO_PLAY_BUFFER + pos,
 333				   src, count);
 334}
 335
 336static int
 337snd_rme96_playback_copy_kernel(struct snd_pcm_substream *substream,
 338			       int channel, unsigned long pos,
 339			       void *src, unsigned long count)
 340{
 341	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
 342
 343	memcpy_toio(rme96->iobase + RME96_IO_PLAY_BUFFER + pos, src, count);
 344	return 0;
 345}
 346
 347static int
 348snd_rme96_capture_copy(struct snd_pcm_substream *substream,
 349		       int channel, unsigned long pos,
 350		       void __user *dst, unsigned long count)
 351{
 352	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
 353
 354	return copy_to_user_fromio(dst,
 355				   rme96->iobase + RME96_IO_REC_BUFFER + pos,
 356				   count);
 357}
 358
 359static int
 360snd_rme96_capture_copy_kernel(struct snd_pcm_substream *substream,
 361			      int channel, unsigned long pos,
 362			      void *dst, unsigned long count)
 363{
 364	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
 365
 366	memcpy_fromio(dst, rme96->iobase + RME96_IO_REC_BUFFER + pos, count);
 367	return 0;
 368}
 369
 370/*
 371 * Digital output capabilities (S/PDIF)
 372 */
 373static const struct snd_pcm_hardware snd_rme96_playback_spdif_info =
 374{
 375	.info =		     (SNDRV_PCM_INFO_MMAP_IOMEM |
 376			      SNDRV_PCM_INFO_MMAP_VALID |
 377			      SNDRV_PCM_INFO_SYNC_START |
 378			      SNDRV_PCM_INFO_RESUME |
 379			      SNDRV_PCM_INFO_INTERLEAVED |
 380			      SNDRV_PCM_INFO_PAUSE),
 381	.formats =	     (SNDRV_PCM_FMTBIT_S16_LE |
 382			      SNDRV_PCM_FMTBIT_S32_LE),
 383	.rates =	     (SNDRV_PCM_RATE_32000 |
 384			      SNDRV_PCM_RATE_44100 | 
 385			      SNDRV_PCM_RATE_48000 | 
 386			      SNDRV_PCM_RATE_64000 |
 387			      SNDRV_PCM_RATE_88200 | 
 388			      SNDRV_PCM_RATE_96000),
 389	.rate_min =	     32000,
 390	.rate_max =	     96000,
 391	.channels_min =	     2,
 392	.channels_max =	     2,
 393	.buffer_bytes_max =  RME96_BUFFER_SIZE,
 394	.period_bytes_min =  RME96_SMALL_BLOCK_SIZE,
 395	.period_bytes_max =  RME96_LARGE_BLOCK_SIZE,
 396	.periods_min =	     RME96_BUFFER_SIZE / RME96_LARGE_BLOCK_SIZE,
 397	.periods_max =	     RME96_BUFFER_SIZE / RME96_SMALL_BLOCK_SIZE,
 398	.fifo_size =	     0,
 399};
 400
 401/*
 402 * Digital input capabilities (S/PDIF)
 403 */
 404static const struct snd_pcm_hardware snd_rme96_capture_spdif_info =
 405{
 406	.info =		     (SNDRV_PCM_INFO_MMAP_IOMEM |
 407			      SNDRV_PCM_INFO_MMAP_VALID |
 408			      SNDRV_PCM_INFO_SYNC_START |
 409			      SNDRV_PCM_INFO_RESUME |
 410			      SNDRV_PCM_INFO_INTERLEAVED |
 411			      SNDRV_PCM_INFO_PAUSE),
 412	.formats =	     (SNDRV_PCM_FMTBIT_S16_LE |
 413			      SNDRV_PCM_FMTBIT_S32_LE),
 414	.rates =	     (SNDRV_PCM_RATE_32000 |
 415			      SNDRV_PCM_RATE_44100 | 
 416			      SNDRV_PCM_RATE_48000 | 
 417			      SNDRV_PCM_RATE_64000 |
 418			      SNDRV_PCM_RATE_88200 | 
 419			      SNDRV_PCM_RATE_96000),
 420	.rate_min =	     32000,
 421	.rate_max =	     96000,
 422	.channels_min =	     2,
 423	.channels_max =	     2,
 424	.buffer_bytes_max =  RME96_BUFFER_SIZE,
 425	.period_bytes_min =  RME96_SMALL_BLOCK_SIZE,
 426	.period_bytes_max =  RME96_LARGE_BLOCK_SIZE,
 427	.periods_min =	     RME96_BUFFER_SIZE / RME96_LARGE_BLOCK_SIZE,
 428	.periods_max =	     RME96_BUFFER_SIZE / RME96_SMALL_BLOCK_SIZE,
 429	.fifo_size =	     0,
 430};
 431
 432/*
 433 * Digital output capabilities (ADAT)
 434 */
 435static const struct snd_pcm_hardware snd_rme96_playback_adat_info =
 436{
 437	.info =		     (SNDRV_PCM_INFO_MMAP_IOMEM |
 438			      SNDRV_PCM_INFO_MMAP_VALID |
 439			      SNDRV_PCM_INFO_SYNC_START |
 440			      SNDRV_PCM_INFO_RESUME |
 441			      SNDRV_PCM_INFO_INTERLEAVED |
 442			      SNDRV_PCM_INFO_PAUSE),
 443	.formats =	     (SNDRV_PCM_FMTBIT_S16_LE |
 444			      SNDRV_PCM_FMTBIT_S32_LE),
 445	.rates =             (SNDRV_PCM_RATE_44100 | 
 446			      SNDRV_PCM_RATE_48000),
 447	.rate_min =          44100,
 448	.rate_max =          48000,
 449	.channels_min =      8,
 450	.channels_max =	     8,
 451	.buffer_bytes_max =  RME96_BUFFER_SIZE,
 452	.period_bytes_min =  RME96_SMALL_BLOCK_SIZE,
 453	.period_bytes_max =  RME96_LARGE_BLOCK_SIZE,
 454	.periods_min =	     RME96_BUFFER_SIZE / RME96_LARGE_BLOCK_SIZE,
 455	.periods_max =	     RME96_BUFFER_SIZE / RME96_SMALL_BLOCK_SIZE,
 456	.fifo_size =	     0,
 457};
 458
 459/*
 460 * Digital input capabilities (ADAT)
 461 */
 462static const struct snd_pcm_hardware snd_rme96_capture_adat_info =
 463{
 464	.info =		     (SNDRV_PCM_INFO_MMAP_IOMEM |
 465			      SNDRV_PCM_INFO_MMAP_VALID |
 466			      SNDRV_PCM_INFO_SYNC_START |
 467			      SNDRV_PCM_INFO_RESUME |
 468			      SNDRV_PCM_INFO_INTERLEAVED |
 469			      SNDRV_PCM_INFO_PAUSE),
 470	.formats =	     (SNDRV_PCM_FMTBIT_S16_LE |
 471			      SNDRV_PCM_FMTBIT_S32_LE),
 472	.rates =	     (SNDRV_PCM_RATE_44100 | 
 473			      SNDRV_PCM_RATE_48000),
 474	.rate_min =          44100,
 475	.rate_max =          48000,
 476	.channels_min =      8,
 477	.channels_max =	     8,
 478	.buffer_bytes_max =  RME96_BUFFER_SIZE,
 479	.period_bytes_min =  RME96_SMALL_BLOCK_SIZE,
 480	.period_bytes_max =  RME96_LARGE_BLOCK_SIZE,
 481	.periods_min =	     RME96_BUFFER_SIZE / RME96_LARGE_BLOCK_SIZE,
 482	.periods_max =	     RME96_BUFFER_SIZE / RME96_SMALL_BLOCK_SIZE,
 483	.fifo_size =         0,
 484};
 485
 486/*
 487 * The CDATA, CCLK and CLATCH bits can be used to write to the SPI interface
 488 * of the AD1852 or AD1852 D/A converter on the board.  CDATA must be set up
 489 * on the falling edge of CCLK and be stable on the rising edge.  The rising
 490 * edge of CLATCH after the last data bit clocks in the whole data word.
 491 * A fast processor could probably drive the SPI interface faster than the
 492 * DAC can handle (3MHz for the 1855, unknown for the 1852).  The udelay(1)
 493 * limits the data rate to 500KHz and only causes a delay of 33 microsecs.
 494 *
 495 * NOTE: increased delay from 1 to 10, since there where problems setting
 496 * the volume.
 497 */
 498static void
 499snd_rme96_write_SPI(struct rme96 *rme96, u16 val)
 500{
 501	int i;
 502
 503	for (i = 0; i < 16; i++) {
 504		if (val & 0x8000) {
 505			rme96->areg |= RME96_AR_CDATA;
 506		} else {
 507			rme96->areg &= ~RME96_AR_CDATA;
 508		}
 509		rme96->areg &= ~(RME96_AR_CCLK | RME96_AR_CLATCH);
 510		writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
 511		udelay(10);
 512		rme96->areg |= RME96_AR_CCLK;
 513		writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
 514		udelay(10);
 515		val <<= 1;
 516	}
 517	rme96->areg &= ~(RME96_AR_CCLK | RME96_AR_CDATA);
 518	rme96->areg |= RME96_AR_CLATCH;
 519	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
 520	udelay(10);
 521	rme96->areg &= ~RME96_AR_CLATCH;
 522	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
 523}
 524
 525static void
 526snd_rme96_apply_dac_volume(struct rme96 *rme96)
 527{
 528	if (RME96_DAC_IS_1852(rme96)) {
 529		snd_rme96_write_SPI(rme96, (rme96->vol[0] << 2) | 0x0);
 530		snd_rme96_write_SPI(rme96, (rme96->vol[1] << 2) | 0x2);
 531	} else if (RME96_DAC_IS_1855(rme96)) {
 532		snd_rme96_write_SPI(rme96, (rme96->vol[0] & 0x3FF) | 0x000);
 533		snd_rme96_write_SPI(rme96, (rme96->vol[1] & 0x3FF) | 0x400);
 534	}
 535}
 536
 537static void
 538snd_rme96_reset_dac(struct rme96 *rme96)
 539{
 540	writel(rme96->wcreg | RME96_WCR_PD,
 541	       rme96->iobase + RME96_IO_CONTROL_REGISTER);
 542	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
 543}
 544
 545static int
 546snd_rme96_getmontracks(struct rme96 *rme96)
 547{
 548	return ((rme96->wcreg >> RME96_WCR_BITPOS_MONITOR_0) & 1) +
 549		(((rme96->wcreg >> RME96_WCR_BITPOS_MONITOR_1) & 1) << 1);
 550}
 551
 552static int
 553snd_rme96_setmontracks(struct rme96 *rme96,
 554		       int montracks)
 555{
 556	if (montracks & 1) {
 557		rme96->wcreg |= RME96_WCR_MONITOR_0;
 558	} else {
 559		rme96->wcreg &= ~RME96_WCR_MONITOR_0;
 560	}
 561	if (montracks & 2) {
 562		rme96->wcreg |= RME96_WCR_MONITOR_1;
 563	} else {
 564		rme96->wcreg &= ~RME96_WCR_MONITOR_1;
 565	}
 566	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
 567	return 0;
 568}
 569
 570static int
 571snd_rme96_getattenuation(struct rme96 *rme96)
 572{
 573	return ((rme96->wcreg >> RME96_WCR_BITPOS_GAIN_0) & 1) +
 574		(((rme96->wcreg >> RME96_WCR_BITPOS_GAIN_1) & 1) << 1);
 575}
 576
 577static int
 578snd_rme96_setattenuation(struct rme96 *rme96,
 579			 int attenuation)
 580{
 581	switch (attenuation) {
 582	case 0:
 583		rme96->wcreg = (rme96->wcreg & ~RME96_WCR_GAIN_0) &
 584			~RME96_WCR_GAIN_1;
 585		break;
 586	case 1:
 587		rme96->wcreg = (rme96->wcreg | RME96_WCR_GAIN_0) &
 588			~RME96_WCR_GAIN_1;
 589		break;
 590	case 2:
 591		rme96->wcreg = (rme96->wcreg & ~RME96_WCR_GAIN_0) |
 592			RME96_WCR_GAIN_1;
 593		break;
 594	case 3:
 595		rme96->wcreg = (rme96->wcreg | RME96_WCR_GAIN_0) |
 596			RME96_WCR_GAIN_1;
 597		break;
 598	default:
 599		return -EINVAL;
 600	}
 601	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
 602	return 0;
 603}
 604
 605static int
 606snd_rme96_capture_getrate(struct rme96 *rme96,
 607			  int *is_adat)
 608{	
 609	int n, rate;
 610
 611	*is_adat = 0;
 612	if (rme96->areg & RME96_AR_ANALOG) {
 613		/* Analog input, overrides S/PDIF setting */
 614		n = ((rme96->areg >> RME96_AR_BITPOS_F0) & 1) +
 615			(((rme96->areg >> RME96_AR_BITPOS_F1) & 1) << 1);
 616		switch (n) {
 617		case 1:
 618			rate = 32000;
 619			break;
 620		case 2:
 621			rate = 44100;
 622			break;
 623		case 3:
 624			rate = 48000;
 625			break;
 626		default:
 627			return -1;
 628		}
 629		return (rme96->areg & RME96_AR_BITPOS_F2) ? rate << 1 : rate;
 630	}
 631
 632	rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
 633	if (rme96->rcreg & RME96_RCR_LOCK) {
 634		/* ADAT rate */
 635		*is_adat = 1;
 636		if (rme96->rcreg & RME96_RCR_T_OUT) {
 637			return 48000;
 638		}
 639		return 44100;
 640	}
 641
 642	if (rme96->rcreg & RME96_RCR_VERF) {
 643		return -1;
 644	}
 645	
 646	/* S/PDIF rate */
 647	n = ((rme96->rcreg >> RME96_RCR_BITPOS_F0) & 1) +
 648		(((rme96->rcreg >> RME96_RCR_BITPOS_F1) & 1) << 1) +
 649		(((rme96->rcreg >> RME96_RCR_BITPOS_F2) & 1) << 2);
 650	
 651	switch (n) {
 652	case 0:		
 653		if (rme96->rcreg & RME96_RCR_T_OUT) {
 654			return 64000;
 655		}
 656		return -1;
 657	case 3: return 96000;
 658	case 4: return 88200;
 659	case 5: return 48000;
 660	case 6: return 44100;
 661	case 7: return 32000;
 662	default:
 663		break;
 664	}
 665	return -1;
 666}
 667
 668static int
 669snd_rme96_playback_getrate(struct rme96 *rme96)
 670{
 671	int rate, dummy;
 672
 673	if (!(rme96->wcreg & RME96_WCR_MASTER) &&
 674            snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
 675	    (rate = snd_rme96_capture_getrate(rme96, &dummy)) > 0)
 676	{
 677	        /* slave clock */
 678	        return rate;
 679	}
 680	rate = ((rme96->wcreg >> RME96_WCR_BITPOS_FREQ_0) & 1) +
 681		(((rme96->wcreg >> RME96_WCR_BITPOS_FREQ_1) & 1) << 1);
 682	switch (rate) {
 683	case 1:
 684		rate = 32000;
 685		break;
 686	case 2:
 687		rate = 44100;
 688		break;
 689	case 3:
 690		rate = 48000;
 691		break;
 692	default:
 693		return -1;
 694	}
 695	return (rme96->wcreg & RME96_WCR_DS) ? rate << 1 : rate;
 696}
 697
 698static int
 699snd_rme96_playback_setrate(struct rme96 *rme96,
 700			   int rate)
 701{
 702	int ds;
 703
 704	ds = rme96->wcreg & RME96_WCR_DS;
 705	switch (rate) {
 706	case 32000:
 707		rme96->wcreg &= ~RME96_WCR_DS;
 708		rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_0) &
 709			~RME96_WCR_FREQ_1;
 710		break;
 711	case 44100:
 712		rme96->wcreg &= ~RME96_WCR_DS;
 713		rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_1) &
 714			~RME96_WCR_FREQ_0;
 715		break;
 716	case 48000:
 717		rme96->wcreg &= ~RME96_WCR_DS;
 718		rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_0) |
 719			RME96_WCR_FREQ_1;
 720		break;
 721	case 64000:
 722		rme96->wcreg |= RME96_WCR_DS;
 723		rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_0) &
 724			~RME96_WCR_FREQ_1;
 725		break;
 726	case 88200:
 727		rme96->wcreg |= RME96_WCR_DS;
 728		rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_1) &
 729			~RME96_WCR_FREQ_0;
 730		break;
 731	case 96000:
 732		rme96->wcreg |= RME96_WCR_DS;
 733		rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_0) |
 734			RME96_WCR_FREQ_1;
 735		break;
 736	default:
 737		return -EINVAL;
 738	}
 739	if ((!ds && rme96->wcreg & RME96_WCR_DS) ||
 740	    (ds && !(rme96->wcreg & RME96_WCR_DS)))
 741	{
 742		/* change to/from double-speed: reset the DAC (if available) */
 743		snd_rme96_reset_dac(rme96);
 744		return 1; /* need to restore volume */
 745	} else {
 746		writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
 747		return 0;
 748	}
 749}
 750
 751static int
 752snd_rme96_capture_analog_setrate(struct rme96 *rme96,
 753				 int rate)
 754{
 755	switch (rate) {
 756	case 32000:
 757		rme96->areg = ((rme96->areg | RME96_AR_FREQPAD_0) &
 758			       ~RME96_AR_FREQPAD_1) & ~RME96_AR_FREQPAD_2;
 759		break;
 760	case 44100:
 761		rme96->areg = ((rme96->areg & ~RME96_AR_FREQPAD_0) |
 762			       RME96_AR_FREQPAD_1) & ~RME96_AR_FREQPAD_2;
 763		break;
 764	case 48000:
 765		rme96->areg = ((rme96->areg | RME96_AR_FREQPAD_0) |
 766			       RME96_AR_FREQPAD_1) & ~RME96_AR_FREQPAD_2;
 767		break;
 768	case 64000:
 769		if (rme96->rev < 4) {
 770			return -EINVAL;
 771		}
 772		rme96->areg = ((rme96->areg | RME96_AR_FREQPAD_0) &
 773			       ~RME96_AR_FREQPAD_1) | RME96_AR_FREQPAD_2;
 774		break;
 775	case 88200:
 776		if (rme96->rev < 4) {
 777			return -EINVAL;
 778		}
 779		rme96->areg = ((rme96->areg & ~RME96_AR_FREQPAD_0) |
 780			       RME96_AR_FREQPAD_1) | RME96_AR_FREQPAD_2;
 781		break;
 782	case 96000:
 783		rme96->areg = ((rme96->areg | RME96_AR_FREQPAD_0) |
 784			       RME96_AR_FREQPAD_1) | RME96_AR_FREQPAD_2;
 785		break;
 786	default:
 787		return -EINVAL;
 788	}
 789	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
 790	return 0;
 791}
 792
 793static int
 794snd_rme96_setclockmode(struct rme96 *rme96,
 795		       int mode)
 796{
 797	switch (mode) {
 798	case RME96_CLOCKMODE_SLAVE:
 799	        /* AutoSync */ 
 800		rme96->wcreg &= ~RME96_WCR_MASTER;
 801		rme96->areg &= ~RME96_AR_WSEL;
 802		break;
 803	case RME96_CLOCKMODE_MASTER:
 804	        /* Internal */
 805		rme96->wcreg |= RME96_WCR_MASTER;
 806		rme96->areg &= ~RME96_AR_WSEL;
 807		break;
 808	case RME96_CLOCKMODE_WORDCLOCK:
 809		/* Word clock is a master mode */
 810		rme96->wcreg |= RME96_WCR_MASTER; 
 811		rme96->areg |= RME96_AR_WSEL;
 812		break;
 813	default:
 814		return -EINVAL;
 815	}
 816	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
 817	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
 818	return 0;
 819}
 820
 821static int
 822snd_rme96_getclockmode(struct rme96 *rme96)
 823{
 824	if (rme96->areg & RME96_AR_WSEL) {
 825		return RME96_CLOCKMODE_WORDCLOCK;
 826	}
 827	return (rme96->wcreg & RME96_WCR_MASTER) ? RME96_CLOCKMODE_MASTER :
 828		RME96_CLOCKMODE_SLAVE;
 829}
 830
 831static int
 832snd_rme96_setinputtype(struct rme96 *rme96,
 833		       int type)
 834{
 835	int n;
 836
 837	switch (type) {
 838	case RME96_INPUT_OPTICAL:
 839		rme96->wcreg = (rme96->wcreg & ~RME96_WCR_INP_0) &
 840			~RME96_WCR_INP_1;
 841		break;
 842	case RME96_INPUT_COAXIAL:
 843		rme96->wcreg = (rme96->wcreg | RME96_WCR_INP_0) &
 844			~RME96_WCR_INP_1;
 845		break;
 846	case RME96_INPUT_INTERNAL:
 847		rme96->wcreg = (rme96->wcreg & ~RME96_WCR_INP_0) |
 848			RME96_WCR_INP_1;
 849		break;
 850	case RME96_INPUT_XLR:
 851		if ((rme96->pci->device != PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST &&
 852		     rme96->pci->device != PCI_DEVICE_ID_RME_DIGI96_8_PRO) ||
 853		    (rme96->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST &&
 854		     rme96->rev > 4))
 855		{
 856			/* Only Digi96/8 PRO and Digi96/8 PAD supports XLR */
 857			return -EINVAL;
 858		}
 859		rme96->wcreg = (rme96->wcreg | RME96_WCR_INP_0) |
 860			RME96_WCR_INP_1;
 861		break;
 862	case RME96_INPUT_ANALOG:
 863		if (!RME96_HAS_ANALOG_IN(rme96)) {
 864			return -EINVAL;
 865		}
 866		rme96->areg |= RME96_AR_ANALOG;
 867		writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
 868		if (rme96->rev < 4) {
 869			/*
 870			 * Revision less than 004 does not support 64 and
 871			 * 88.2 kHz
 872			 */
 873			if (snd_rme96_capture_getrate(rme96, &n) == 88200) {
 874				snd_rme96_capture_analog_setrate(rme96, 44100);
 875			}
 876			if (snd_rme96_capture_getrate(rme96, &n) == 64000) {
 877				snd_rme96_capture_analog_setrate(rme96, 32000);
 878			}
 879		}
 880		return 0;
 881	default:
 882		return -EINVAL;
 883	}
 884	if (type != RME96_INPUT_ANALOG && RME96_HAS_ANALOG_IN(rme96)) {
 885		rme96->areg &= ~RME96_AR_ANALOG;
 886		writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
 887	}
 888	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
 889	return 0;
 890}
 891
 892static int
 893snd_rme96_getinputtype(struct rme96 *rme96)
 894{
 895	if (rme96->areg & RME96_AR_ANALOG) {
 896		return RME96_INPUT_ANALOG;
 897	}
 898	return ((rme96->wcreg >> RME96_WCR_BITPOS_INP_0) & 1) +
 899		(((rme96->wcreg >> RME96_WCR_BITPOS_INP_1) & 1) << 1);
 900}
 901
 902static void
 903snd_rme96_setframelog(struct rme96 *rme96,
 904		      int n_channels,
 905		      int is_playback)
 906{
 907	int frlog;
 908	
 909	if (n_channels == 2) {
 910		frlog = 1;
 911	} else {
 912		/* assume 8 channels */
 913		frlog = 3;
 914	}
 915	if (is_playback) {
 916		frlog += (rme96->wcreg & RME96_WCR_MODE24) ? 2 : 1;
 917		rme96->playback_frlog = frlog;
 918	} else {
 919		frlog += (rme96->wcreg & RME96_WCR_MODE24_2) ? 2 : 1;
 920		rme96->capture_frlog = frlog;
 921	}
 922}
 923
 924static int
 925snd_rme96_playback_setformat(struct rme96 *rme96, snd_pcm_format_t format)
 926{
 927	switch (format) {
 928	case SNDRV_PCM_FORMAT_S16_LE:
 929		rme96->wcreg &= ~RME96_WCR_MODE24;
 930		break;
 931	case SNDRV_PCM_FORMAT_S32_LE:
 932		rme96->wcreg |= RME96_WCR_MODE24;
 933		break;
 934	default:
 935		return -EINVAL;
 936	}
 937	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
 938	return 0;
 939}
 940
 941static int
 942snd_rme96_capture_setformat(struct rme96 *rme96, snd_pcm_format_t format)
 943{
 944	switch (format) {
 945	case SNDRV_PCM_FORMAT_S16_LE:
 946		rme96->wcreg &= ~RME96_WCR_MODE24_2;
 947		break;
 948	case SNDRV_PCM_FORMAT_S32_LE:
 949		rme96->wcreg |= RME96_WCR_MODE24_2;
 950		break;
 951	default:
 952		return -EINVAL;
 953	}
 954	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
 955	return 0;
 956}
 957
 958static void
 959snd_rme96_set_period_properties(struct rme96 *rme96,
 960				size_t period_bytes)
 961{
 962	switch (period_bytes) {
 963	case RME96_LARGE_BLOCK_SIZE:
 964		rme96->wcreg &= ~RME96_WCR_ISEL;
 965		break;
 966	case RME96_SMALL_BLOCK_SIZE:
 967		rme96->wcreg |= RME96_WCR_ISEL;
 968		break;
 969	default:
 970		snd_BUG();
 971		break;
 972	}
 973	rme96->wcreg &= ~RME96_WCR_IDIS;
 974	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
 975}
 976
 977static int
 978snd_rme96_playback_hw_params(struct snd_pcm_substream *substream,
 979			     struct snd_pcm_hw_params *params)
 980{
 981	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
 982	struct snd_pcm_runtime *runtime = substream->runtime;
 983	int err, rate, dummy;
 984	bool apply_dac_volume = false;
 985
 986	runtime->dma_area = (void __force *)(rme96->iobase +
 987					     RME96_IO_PLAY_BUFFER);
 988	runtime->dma_addr = rme96->port + RME96_IO_PLAY_BUFFER;
 989	runtime->dma_bytes = RME96_BUFFER_SIZE;
 990
 991	spin_lock_irq(&rme96->lock);
 992	if (!(rme96->wcreg & RME96_WCR_MASTER) &&
 993            snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
 994	    (rate = snd_rme96_capture_getrate(rme96, &dummy)) > 0)
 995	{
 996                /* slave clock */
 997                if ((int)params_rate(params) != rate) {
 998			err = -EIO;
 999			goto error;
1000		}
1001	} else {
1002		err = snd_rme96_playback_setrate(rme96, params_rate(params));
1003		if (err < 0)
1004			goto error;
1005		apply_dac_volume = err > 0; /* need to restore volume later? */
1006	}
1007
1008	err = snd_rme96_playback_setformat(rme96, params_format(params));
1009	if (err < 0)
1010		goto error;
1011	snd_rme96_setframelog(rme96, params_channels(params), 1);
1012	if (rme96->capture_periodsize != 0) {
1013		if (params_period_size(params) << rme96->playback_frlog !=
1014		    rme96->capture_periodsize)
1015		{
1016			err = -EBUSY;
1017			goto error;
1018		}
1019	}
1020	rme96->playback_periodsize =
1021		params_period_size(params) << rme96->playback_frlog;
1022	snd_rme96_set_period_properties(rme96, rme96->playback_periodsize);
1023	/* S/PDIF setup */
1024	if ((rme96->wcreg & RME96_WCR_ADAT) == 0) {
1025		rme96->wcreg &= ~(RME96_WCR_PRO | RME96_WCR_DOLBY | RME96_WCR_EMP);
1026		writel(rme96->wcreg |= rme96->wcreg_spdif_stream, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1027	}
1028
1029	err = 0;
1030 error:
1031	spin_unlock_irq(&rme96->lock);
1032	if (apply_dac_volume) {
1033		usleep_range(3000, 10000);
1034		snd_rme96_apply_dac_volume(rme96);
1035	}
1036
1037	return err;
1038}
1039
1040static int
1041snd_rme96_capture_hw_params(struct snd_pcm_substream *substream,
1042			    struct snd_pcm_hw_params *params)
1043{
1044	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1045	struct snd_pcm_runtime *runtime = substream->runtime;
1046	int err, isadat, rate;
1047	
1048	runtime->dma_area = (void __force *)(rme96->iobase +
1049					     RME96_IO_REC_BUFFER);
1050	runtime->dma_addr = rme96->port + RME96_IO_REC_BUFFER;
1051	runtime->dma_bytes = RME96_BUFFER_SIZE;
1052
1053	spin_lock_irq(&rme96->lock);
1054	if ((err = snd_rme96_capture_setformat(rme96, params_format(params))) < 0) {
1055		spin_unlock_irq(&rme96->lock);
1056		return err;
1057	}
1058	if (snd_rme96_getinputtype(rme96) == RME96_INPUT_ANALOG) {
1059		if ((err = snd_rme96_capture_analog_setrate(rme96,
1060							    params_rate(params))) < 0)
1061		{
1062			spin_unlock_irq(&rme96->lock);
1063			return err;
1064		}
1065	} else if ((rate = snd_rme96_capture_getrate(rme96, &isadat)) > 0) {
1066                if ((int)params_rate(params) != rate) {
1067			spin_unlock_irq(&rme96->lock);
1068			return -EIO;                    
1069                }
1070                if ((isadat && runtime->hw.channels_min == 2) ||
1071                    (!isadat && runtime->hw.channels_min == 8))
1072                {
1073			spin_unlock_irq(&rme96->lock);
1074			return -EIO;
1075                }
1076        }
1077	snd_rme96_setframelog(rme96, params_channels(params), 0);
1078	if (rme96->playback_periodsize != 0) {
1079		if (params_period_size(params) << rme96->capture_frlog !=
1080		    rme96->playback_periodsize)
1081		{
1082			spin_unlock_irq(&rme96->lock);
1083			return -EBUSY;
1084		}
1085	}
1086	rme96->capture_periodsize =
1087		params_period_size(params) << rme96->capture_frlog;
1088	snd_rme96_set_period_properties(rme96, rme96->capture_periodsize);
1089	spin_unlock_irq(&rme96->lock);
1090
1091	return 0;
1092}
1093
1094static void
1095snd_rme96_trigger(struct rme96 *rme96,
1096		  int op)
1097{
1098	if (op & RME96_TB_RESET_PLAYPOS)
1099		writel(0, rme96->iobase + RME96_IO_RESET_PLAY_POS);
1100	if (op & RME96_TB_RESET_CAPTUREPOS)
1101		writel(0, rme96->iobase + RME96_IO_RESET_REC_POS);
1102	if (op & RME96_TB_CLEAR_PLAYBACK_IRQ) {
1103		rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
1104		if (rme96->rcreg & RME96_RCR_IRQ)
1105			writel(0, rme96->iobase + RME96_IO_CONFIRM_PLAY_IRQ);
1106	}
1107	if (op & RME96_TB_CLEAR_CAPTURE_IRQ) {
1108		rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
1109		if (rme96->rcreg & RME96_RCR_IRQ_2)
1110			writel(0, rme96->iobase + RME96_IO_CONFIRM_REC_IRQ);
1111	}
1112	if (op & RME96_TB_START_PLAYBACK)
1113		rme96->wcreg |= RME96_WCR_START;
1114	if (op & RME96_TB_STOP_PLAYBACK)
1115		rme96->wcreg &= ~RME96_WCR_START;
1116	if (op & RME96_TB_START_CAPTURE)
1117		rme96->wcreg |= RME96_WCR_START_2;
1118	if (op & RME96_TB_STOP_CAPTURE)
1119		rme96->wcreg &= ~RME96_WCR_START_2;
1120	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1121}
1122
1123
1124
1125static irqreturn_t
1126snd_rme96_interrupt(int irq,
1127		    void *dev_id)
1128{
1129	struct rme96 *rme96 = (struct rme96 *)dev_id;
1130
1131	rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
1132	/* fastpath out, to ease interrupt sharing */
1133	if (!((rme96->rcreg & RME96_RCR_IRQ) ||
1134	      (rme96->rcreg & RME96_RCR_IRQ_2)))
1135	{
1136		return IRQ_NONE;
1137	}
1138	
1139	if (rme96->rcreg & RME96_RCR_IRQ) {
1140		/* playback */
1141                snd_pcm_period_elapsed(rme96->playback_substream);
1142		writel(0, rme96->iobase + RME96_IO_CONFIRM_PLAY_IRQ);
1143	}
1144	if (rme96->rcreg & RME96_RCR_IRQ_2) {
1145		/* capture */
1146		snd_pcm_period_elapsed(rme96->capture_substream);		
1147		writel(0, rme96->iobase + RME96_IO_CONFIRM_REC_IRQ);
1148	}
1149	return IRQ_HANDLED;
1150}
1151
1152static const unsigned int period_bytes[] = { RME96_SMALL_BLOCK_SIZE, RME96_LARGE_BLOCK_SIZE };
1153
1154static const struct snd_pcm_hw_constraint_list hw_constraints_period_bytes = {
1155	.count = ARRAY_SIZE(period_bytes),
1156	.list = period_bytes,
1157	.mask = 0
1158};
1159
1160static void
1161rme96_set_buffer_size_constraint(struct rme96 *rme96,
1162				 struct snd_pcm_runtime *runtime)
1163{
1164	unsigned int size;
1165
1166	snd_pcm_hw_constraint_single(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
1167				     RME96_BUFFER_SIZE);
1168	if ((size = rme96->playback_periodsize) != 0 ||
1169	    (size = rme96->capture_periodsize) != 0)
1170		snd_pcm_hw_constraint_single(runtime,
1171					     SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
1172					     size);
1173	else
1174		snd_pcm_hw_constraint_list(runtime, 0,
1175					   SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
1176					   &hw_constraints_period_bytes);
1177}
1178
1179static int
1180snd_rme96_playback_spdif_open(struct snd_pcm_substream *substream)
1181{
1182        int rate, dummy;
1183	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1184	struct snd_pcm_runtime *runtime = substream->runtime;
1185
1186	snd_pcm_set_sync(substream);
1187	spin_lock_irq(&rme96->lock);	
1188	if (rme96->playback_substream) {
1189		spin_unlock_irq(&rme96->lock);
1190                return -EBUSY;
1191        }
1192	rme96->wcreg &= ~RME96_WCR_ADAT;
1193	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1194	rme96->playback_substream = substream;
1195	spin_unlock_irq(&rme96->lock);
1196
1197	runtime->hw = snd_rme96_playback_spdif_info;
1198	if (!(rme96->wcreg & RME96_WCR_MASTER) &&
1199            snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
1200	    (rate = snd_rme96_capture_getrate(rme96, &dummy)) > 0)
1201	{
1202                /* slave clock */
1203                runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
1204                runtime->hw.rate_min = rate;
1205                runtime->hw.rate_max = rate;
1206	}        
1207	rme96_set_buffer_size_constraint(rme96, runtime);
1208
1209	rme96->wcreg_spdif_stream = rme96->wcreg_spdif;
1210	rme96->spdif_ctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1211	snd_ctl_notify(rme96->card, SNDRV_CTL_EVENT_MASK_VALUE |
1212		       SNDRV_CTL_EVENT_MASK_INFO, &rme96->spdif_ctl->id);
1213	return 0;
1214}
1215
1216static int
1217snd_rme96_capture_spdif_open(struct snd_pcm_substream *substream)
1218{
1219        int isadat, rate;
1220	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1221	struct snd_pcm_runtime *runtime = substream->runtime;
1222
1223	snd_pcm_set_sync(substream);
1224	runtime->hw = snd_rme96_capture_spdif_info;
1225        if (snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
1226            (rate = snd_rme96_capture_getrate(rme96, &isadat)) > 0)
1227        {
1228                if (isadat) {
1229                        return -EIO;
1230                }
1231                runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
1232                runtime->hw.rate_min = rate;
1233                runtime->hw.rate_max = rate;
1234        }
1235        
1236	spin_lock_irq(&rme96->lock);
1237	if (rme96->capture_substream) {
1238		spin_unlock_irq(&rme96->lock);
1239                return -EBUSY;
1240        }
1241	rme96->capture_substream = substream;
1242	spin_unlock_irq(&rme96->lock);
1243	
1244	rme96_set_buffer_size_constraint(rme96, runtime);
1245	return 0;
1246}
1247
1248static int
1249snd_rme96_playback_adat_open(struct snd_pcm_substream *substream)
1250{
1251        int rate, dummy;
1252	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1253	struct snd_pcm_runtime *runtime = substream->runtime;        
1254	
1255	snd_pcm_set_sync(substream);
1256	spin_lock_irq(&rme96->lock);	
1257	if (rme96->playback_substream) {
1258		spin_unlock_irq(&rme96->lock);
1259                return -EBUSY;
1260        }
1261	rme96->wcreg |= RME96_WCR_ADAT;
1262	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1263	rme96->playback_substream = substream;
1264	spin_unlock_irq(&rme96->lock);
1265	
1266	runtime->hw = snd_rme96_playback_adat_info;
1267	if (!(rme96->wcreg & RME96_WCR_MASTER) &&
1268            snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
1269	    (rate = snd_rme96_capture_getrate(rme96, &dummy)) > 0)
1270	{
1271                /* slave clock */
1272                runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
1273                runtime->hw.rate_min = rate;
1274                runtime->hw.rate_max = rate;
1275	}        
1276	rme96_set_buffer_size_constraint(rme96, runtime);
1277	return 0;
1278}
1279
1280static int
1281snd_rme96_capture_adat_open(struct snd_pcm_substream *substream)
1282{
1283        int isadat, rate;
1284	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1285	struct snd_pcm_runtime *runtime = substream->runtime;
1286
1287	snd_pcm_set_sync(substream);
1288	runtime->hw = snd_rme96_capture_adat_info;
1289        if (snd_rme96_getinputtype(rme96) == RME96_INPUT_ANALOG) {
1290                /* makes no sense to use analog input. Note that analog
1291                   expension cards AEB4/8-I are RME96_INPUT_INTERNAL */
1292                return -EIO;
1293        }
1294        if ((rate = snd_rme96_capture_getrate(rme96, &isadat)) > 0) {
1295                if (!isadat) {
1296                        return -EIO;
1297                }
1298                runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
1299                runtime->hw.rate_min = rate;
1300                runtime->hw.rate_max = rate;
1301        }
1302        
1303	spin_lock_irq(&rme96->lock);	
1304	if (rme96->capture_substream) {
1305		spin_unlock_irq(&rme96->lock);
1306                return -EBUSY;
1307        }
1308	rme96->capture_substream = substream;
1309	spin_unlock_irq(&rme96->lock);
1310
1311	rme96_set_buffer_size_constraint(rme96, runtime);
1312	return 0;
1313}
1314
1315static int
1316snd_rme96_playback_close(struct snd_pcm_substream *substream)
1317{
1318	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1319	int spdif = 0;
1320
1321	spin_lock_irq(&rme96->lock);	
1322	if (RME96_ISPLAYING(rme96)) {
1323		snd_rme96_trigger(rme96, RME96_STOP_PLAYBACK);
1324	}
1325	rme96->playback_substream = NULL;
1326	rme96->playback_periodsize = 0;
1327	spdif = (rme96->wcreg & RME96_WCR_ADAT) == 0;
1328	spin_unlock_irq(&rme96->lock);
1329	if (spdif) {
1330		rme96->spdif_ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1331		snd_ctl_notify(rme96->card, SNDRV_CTL_EVENT_MASK_VALUE |
1332			       SNDRV_CTL_EVENT_MASK_INFO, &rme96->spdif_ctl->id);
1333	}
1334	return 0;
1335}
1336
1337static int
1338snd_rme96_capture_close(struct snd_pcm_substream *substream)
1339{
1340	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1341	
1342	spin_lock_irq(&rme96->lock);	
1343	if (RME96_ISRECORDING(rme96)) {
1344		snd_rme96_trigger(rme96, RME96_STOP_CAPTURE);
1345	}
1346	rme96->capture_substream = NULL;
1347	rme96->capture_periodsize = 0;
1348	spin_unlock_irq(&rme96->lock);
1349	return 0;
1350}
1351
1352static int
1353snd_rme96_playback_prepare(struct snd_pcm_substream *substream)
1354{
1355	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1356	
1357	spin_lock_irq(&rme96->lock);	
1358	if (RME96_ISPLAYING(rme96)) {
1359		snd_rme96_trigger(rme96, RME96_STOP_PLAYBACK);
1360	}
1361	writel(0, rme96->iobase + RME96_IO_RESET_PLAY_POS);
1362	spin_unlock_irq(&rme96->lock);
1363	return 0;
1364}
1365
1366static int
1367snd_rme96_capture_prepare(struct snd_pcm_substream *substream)
1368{
1369	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1370	
1371	spin_lock_irq(&rme96->lock);	
1372	if (RME96_ISRECORDING(rme96)) {
1373		snd_rme96_trigger(rme96, RME96_STOP_CAPTURE);
1374	}
1375	writel(0, rme96->iobase + RME96_IO_RESET_REC_POS);
1376	spin_unlock_irq(&rme96->lock);
1377	return 0;
1378}
1379
1380static int
1381snd_rme96_playback_trigger(struct snd_pcm_substream *substream, 
1382			   int cmd)
1383{
1384	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1385	struct snd_pcm_substream *s;
1386	bool sync;
1387
1388	snd_pcm_group_for_each_entry(s, substream) {
1389		if (snd_pcm_substream_chip(s) == rme96)
1390			snd_pcm_trigger_done(s, substream);
1391	}
1392
1393	sync = (rme96->playback_substream && rme96->capture_substream) &&
1394	       (rme96->playback_substream->group ==
1395		rme96->capture_substream->group);
1396
1397	switch (cmd) {
1398	case SNDRV_PCM_TRIGGER_START:
1399		if (!RME96_ISPLAYING(rme96)) {
1400			if (substream != rme96->playback_substream)
1401				return -EBUSY;
1402			snd_rme96_trigger(rme96, sync ? RME96_START_BOTH
1403						 : RME96_START_PLAYBACK);
1404		}
1405		break;
1406
1407	case SNDRV_PCM_TRIGGER_SUSPEND:
1408	case SNDRV_PCM_TRIGGER_STOP:
1409		if (RME96_ISPLAYING(rme96)) {
1410			if (substream != rme96->playback_substream)
1411				return -EBUSY;
1412			snd_rme96_trigger(rme96, sync ? RME96_STOP_BOTH
1413						 :  RME96_STOP_PLAYBACK);
1414		}
1415		break;
1416
1417	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1418		if (RME96_ISPLAYING(rme96))
1419			snd_rme96_trigger(rme96, sync ? RME96_STOP_BOTH
1420						 : RME96_STOP_PLAYBACK);
1421		break;
1422
1423	case SNDRV_PCM_TRIGGER_RESUME:
1424	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1425		if (!RME96_ISPLAYING(rme96))
1426			snd_rme96_trigger(rme96, sync ? RME96_RESUME_BOTH
1427						 : RME96_RESUME_PLAYBACK);
1428		break;
1429
1430	default:
1431		return -EINVAL;
1432	}
1433
1434	return 0;
1435}
1436
1437static int
1438snd_rme96_capture_trigger(struct snd_pcm_substream *substream, 
1439			  int cmd)
1440{
1441	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1442	struct snd_pcm_substream *s;
1443	bool sync;
1444
1445	snd_pcm_group_for_each_entry(s, substream) {
1446		if (snd_pcm_substream_chip(s) == rme96)
1447			snd_pcm_trigger_done(s, substream);
1448	}
1449
1450	sync = (rme96->playback_substream && rme96->capture_substream) &&
1451	       (rme96->playback_substream->group ==
1452		rme96->capture_substream->group);
1453
1454	switch (cmd) {
1455	case SNDRV_PCM_TRIGGER_START:
1456		if (!RME96_ISRECORDING(rme96)) {
1457			if (substream != rme96->capture_substream)
1458				return -EBUSY;
1459			snd_rme96_trigger(rme96, sync ? RME96_START_BOTH
1460						 : RME96_START_CAPTURE);
1461		}
1462		break;
1463
1464	case SNDRV_PCM_TRIGGER_SUSPEND:
1465	case SNDRV_PCM_TRIGGER_STOP:
1466		if (RME96_ISRECORDING(rme96)) {
1467			if (substream != rme96->capture_substream)
1468				return -EBUSY;
1469			snd_rme96_trigger(rme96, sync ? RME96_STOP_BOTH
1470						 : RME96_STOP_CAPTURE);
1471		}
1472		break;
1473
1474	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1475		if (RME96_ISRECORDING(rme96))
1476			snd_rme96_trigger(rme96, sync ? RME96_STOP_BOTH
1477						 : RME96_STOP_CAPTURE);
1478		break;
1479
1480	case SNDRV_PCM_TRIGGER_RESUME:
1481	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1482		if (!RME96_ISRECORDING(rme96))
1483			snd_rme96_trigger(rme96, sync ? RME96_RESUME_BOTH
1484						 : RME96_RESUME_CAPTURE);
1485		break;
1486
1487	default:
1488		return -EINVAL;
1489	}
1490
1491	return 0;
1492}
1493
1494static snd_pcm_uframes_t
1495snd_rme96_playback_pointer(struct snd_pcm_substream *substream)
1496{
1497	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1498	return snd_rme96_playback_ptr(rme96);
1499}
1500
1501static snd_pcm_uframes_t
1502snd_rme96_capture_pointer(struct snd_pcm_substream *substream)
1503{
1504	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1505	return snd_rme96_capture_ptr(rme96);
1506}
1507
1508static const struct snd_pcm_ops snd_rme96_playback_spdif_ops = {
1509	.open =		snd_rme96_playback_spdif_open,
1510	.close =	snd_rme96_playback_close,
 
1511	.hw_params =	snd_rme96_playback_hw_params,
1512	.prepare =	snd_rme96_playback_prepare,
1513	.trigger =	snd_rme96_playback_trigger,
1514	.pointer =	snd_rme96_playback_pointer,
1515	.copy_user =	snd_rme96_playback_copy,
1516	.copy_kernel =	snd_rme96_playback_copy_kernel,
1517	.fill_silence =	snd_rme96_playback_silence,
1518	.mmap =		snd_pcm_lib_mmap_iomem,
1519};
1520
1521static const struct snd_pcm_ops snd_rme96_capture_spdif_ops = {
1522	.open =		snd_rme96_capture_spdif_open,
1523	.close =	snd_rme96_capture_close,
 
1524	.hw_params =	snd_rme96_capture_hw_params,
1525	.prepare =	snd_rme96_capture_prepare,
1526	.trigger =	snd_rme96_capture_trigger,
1527	.pointer =	snd_rme96_capture_pointer,
1528	.copy_user =	snd_rme96_capture_copy,
1529	.copy_kernel =	snd_rme96_capture_copy_kernel,
1530	.mmap =		snd_pcm_lib_mmap_iomem,
1531};
1532
1533static const struct snd_pcm_ops snd_rme96_playback_adat_ops = {
1534	.open =		snd_rme96_playback_adat_open,
1535	.close =	snd_rme96_playback_close,
 
1536	.hw_params =	snd_rme96_playback_hw_params,
1537	.prepare =	snd_rme96_playback_prepare,
1538	.trigger =	snd_rme96_playback_trigger,
1539	.pointer =	snd_rme96_playback_pointer,
1540	.copy_user =	snd_rme96_playback_copy,
1541	.copy_kernel =	snd_rme96_playback_copy_kernel,
1542	.fill_silence =	snd_rme96_playback_silence,
1543	.mmap =		snd_pcm_lib_mmap_iomem,
1544};
1545
1546static const struct snd_pcm_ops snd_rme96_capture_adat_ops = {
1547	.open =		snd_rme96_capture_adat_open,
1548	.close =	snd_rme96_capture_close,
 
1549	.hw_params =	snd_rme96_capture_hw_params,
1550	.prepare =	snd_rme96_capture_prepare,
1551	.trigger =	snd_rme96_capture_trigger,
1552	.pointer =	snd_rme96_capture_pointer,
1553	.copy_user =	snd_rme96_capture_copy,
1554	.copy_kernel =	snd_rme96_capture_copy_kernel,
1555	.mmap =		snd_pcm_lib_mmap_iomem,
1556};
1557
1558static void
1559snd_rme96_free(void *private_data)
1560{
1561	struct rme96 *rme96 = (struct rme96 *)private_data;
1562
1563	if (!rme96)
1564	        return;
1565
1566	if (rme96->irq >= 0) {
1567		snd_rme96_trigger(rme96, RME96_STOP_BOTH);
1568		rme96->areg &= ~RME96_AR_DAC_EN;
1569		writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
1570		free_irq(rme96->irq, (void *)rme96);
1571		rme96->irq = -1;
1572	}
1573	if (rme96->iobase) {
1574		iounmap(rme96->iobase);
1575		rme96->iobase = NULL;
1576	}
1577	if (rme96->port) {
1578		pci_release_regions(rme96->pci);
1579		rme96->port = 0;
1580	}
1581#ifdef CONFIG_PM_SLEEP
1582	vfree(rme96->playback_suspend_buffer);
1583	vfree(rme96->capture_suspend_buffer);
1584#endif
1585	pci_disable_device(rme96->pci);
1586}
1587
1588static void
1589snd_rme96_free_spdif_pcm(struct snd_pcm *pcm)
1590{
1591	struct rme96 *rme96 = pcm->private_data;
1592	rme96->spdif_pcm = NULL;
1593}
1594
1595static void
1596snd_rme96_free_adat_pcm(struct snd_pcm *pcm)
1597{
1598	struct rme96 *rme96 = pcm->private_data;
1599	rme96->adat_pcm = NULL;
1600}
1601
1602static int
1603snd_rme96_create(struct rme96 *rme96)
1604{
1605	struct pci_dev *pci = rme96->pci;
1606	int err;
1607
1608	rme96->irq = -1;
1609	spin_lock_init(&rme96->lock);
1610
1611	if ((err = pci_enable_device(pci)) < 0)
1612		return err;
1613
1614	if ((err = pci_request_regions(pci, "RME96")) < 0)
1615		return err;
1616	rme96->port = pci_resource_start(rme96->pci, 0);
1617
1618	rme96->iobase = ioremap(rme96->port, RME96_IO_SIZE);
1619	if (!rme96->iobase) {
1620		dev_err(rme96->card->dev,
1621			"unable to remap memory region 0x%lx-0x%lx\n",
1622			rme96->port, rme96->port + RME96_IO_SIZE - 1);
1623		return -ENOMEM;
1624	}
1625
1626	if (request_irq(pci->irq, snd_rme96_interrupt, IRQF_SHARED,
1627			KBUILD_MODNAME, rme96)) {
1628		dev_err(rme96->card->dev, "unable to grab IRQ %d\n", pci->irq);
1629		return -EBUSY;
1630	}
1631	rme96->irq = pci->irq;
1632	rme96->card->sync_irq = rme96->irq;
1633
1634	/* read the card's revision number */
1635	pci_read_config_byte(pci, 8, &rme96->rev);	
1636	
1637	/* set up ALSA pcm device for S/PDIF */
1638	if ((err = snd_pcm_new(rme96->card, "Digi96 IEC958", 0,
1639			       1, 1, &rme96->spdif_pcm)) < 0)
1640	{
1641		return err;
1642	}
1643	rme96->spdif_pcm->private_data = rme96;
1644	rme96->spdif_pcm->private_free = snd_rme96_free_spdif_pcm;
1645	strcpy(rme96->spdif_pcm->name, "Digi96 IEC958");
1646	snd_pcm_set_ops(rme96->spdif_pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_rme96_playback_spdif_ops);
1647	snd_pcm_set_ops(rme96->spdif_pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_rme96_capture_spdif_ops);
1648
1649	rme96->spdif_pcm->info_flags = 0;
1650
1651	/* set up ALSA pcm device for ADAT */
1652	if (pci->device == PCI_DEVICE_ID_RME_DIGI96) {
1653		/* ADAT is not available on the base model */
1654		rme96->adat_pcm = NULL;
1655	} else {
1656		if ((err = snd_pcm_new(rme96->card, "Digi96 ADAT", 1,
1657				       1, 1, &rme96->adat_pcm)) < 0)
1658		{
1659			return err;
1660		}		
1661		rme96->adat_pcm->private_data = rme96;
1662		rme96->adat_pcm->private_free = snd_rme96_free_adat_pcm;
1663		strcpy(rme96->adat_pcm->name, "Digi96 ADAT");
1664		snd_pcm_set_ops(rme96->adat_pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_rme96_playback_adat_ops);
1665		snd_pcm_set_ops(rme96->adat_pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_rme96_capture_adat_ops);
1666		
1667		rme96->adat_pcm->info_flags = 0;
1668	}
1669
1670	rme96->playback_periodsize = 0;
1671	rme96->capture_periodsize = 0;
1672	
1673	/* make sure playback/capture is stopped, if by some reason active */
1674	snd_rme96_trigger(rme96, RME96_STOP_BOTH);
1675	
1676	/* set default values in registers */
1677	rme96->wcreg =
1678		RME96_WCR_FREQ_1 | /* set 44.1 kHz playback */
1679		RME96_WCR_SEL |    /* normal playback */
1680		RME96_WCR_MASTER | /* set to master clock mode */
1681		RME96_WCR_INP_0;   /* set coaxial input */
1682
1683	rme96->areg = RME96_AR_FREQPAD_1; /* set 44.1 kHz analog capture */
1684
1685	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1686	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
1687	
1688	/* reset the ADC */
1689	writel(rme96->areg | RME96_AR_PD2,
1690	       rme96->iobase + RME96_IO_ADDITIONAL_REG);
1691	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);	
1692
1693	/* reset and enable the DAC (order is important). */
1694	snd_rme96_reset_dac(rme96);
1695	rme96->areg |= RME96_AR_DAC_EN;
1696	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
1697
1698	/* reset playback and record buffer pointers */
1699	writel(0, rme96->iobase + RME96_IO_RESET_PLAY_POS);
1700	writel(0, rme96->iobase + RME96_IO_RESET_REC_POS);
1701
1702	/* reset volume */
1703	rme96->vol[0] = rme96->vol[1] = 0;
1704	if (RME96_HAS_ANALOG_OUT(rme96)) {
1705		snd_rme96_apply_dac_volume(rme96);
1706	}
1707	
1708	/* init switch interface */
1709	if ((err = snd_rme96_create_switches(rme96->card, rme96)) < 0) {
1710		return err;
1711	}
1712
1713        /* init proc interface */
1714	snd_rme96_proc_init(rme96);
1715	
1716	return 0;
1717}
1718
1719/*
1720 * proc interface
1721 */
1722
1723static void 
1724snd_rme96_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
1725{
1726	int n;
1727	struct rme96 *rme96 = entry->private_data;
1728	
1729	rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
1730
1731	snd_iprintf(buffer, rme96->card->longname);
1732	snd_iprintf(buffer, " (index #%d)\n", rme96->card->number + 1);
1733
1734	snd_iprintf(buffer, "\nGeneral settings\n");
1735	if (rme96->wcreg & RME96_WCR_IDIS) {
1736		snd_iprintf(buffer, "  period size: N/A (interrupts "
1737			    "disabled)\n");
1738	} else if (rme96->wcreg & RME96_WCR_ISEL) {
1739		snd_iprintf(buffer, "  period size: 2048 bytes\n");
1740	} else {
1741		snd_iprintf(buffer, "  period size: 8192 bytes\n");
1742	}	
1743	snd_iprintf(buffer, "\nInput settings\n");
1744	switch (snd_rme96_getinputtype(rme96)) {
1745	case RME96_INPUT_OPTICAL:
1746		snd_iprintf(buffer, "  input: optical");
1747		break;
1748	case RME96_INPUT_COAXIAL:
1749		snd_iprintf(buffer, "  input: coaxial");
1750		break;
1751	case RME96_INPUT_INTERNAL:
1752		snd_iprintf(buffer, "  input: internal");
1753		break;
1754	case RME96_INPUT_XLR:
1755		snd_iprintf(buffer, "  input: XLR");
1756		break;
1757	case RME96_INPUT_ANALOG:
1758		snd_iprintf(buffer, "  input: analog");
1759		break;
1760	}
1761	if (snd_rme96_capture_getrate(rme96, &n) < 0) {
1762		snd_iprintf(buffer, "\n  sample rate: no valid signal\n");
1763	} else {
1764		if (n) {
1765			snd_iprintf(buffer, " (8 channels)\n");
1766		} else {
1767			snd_iprintf(buffer, " (2 channels)\n");
1768		}
1769		snd_iprintf(buffer, "  sample rate: %d Hz\n",
1770			    snd_rme96_capture_getrate(rme96, &n));
1771	}
1772	if (rme96->wcreg & RME96_WCR_MODE24_2) {
1773		snd_iprintf(buffer, "  sample format: 24 bit\n");
1774	} else {
1775		snd_iprintf(buffer, "  sample format: 16 bit\n");
1776	}
1777	
1778	snd_iprintf(buffer, "\nOutput settings\n");
1779	if (rme96->wcreg & RME96_WCR_SEL) {
1780		snd_iprintf(buffer, "  output signal: normal playback\n");
1781	} else {
1782		snd_iprintf(buffer, "  output signal: same as input\n");
1783	}
1784	snd_iprintf(buffer, "  sample rate: %d Hz\n",
1785		    snd_rme96_playback_getrate(rme96));
1786	if (rme96->wcreg & RME96_WCR_MODE24) {
1787		snd_iprintf(buffer, "  sample format: 24 bit\n");
1788	} else {
1789		snd_iprintf(buffer, "  sample format: 16 bit\n");
1790	}
1791	if (rme96->areg & RME96_AR_WSEL) {
1792		snd_iprintf(buffer, "  sample clock source: word clock\n");
1793	} else if (rme96->wcreg & RME96_WCR_MASTER) {
1794		snd_iprintf(buffer, "  sample clock source: internal\n");
1795	} else if (snd_rme96_getinputtype(rme96) == RME96_INPUT_ANALOG) {
1796		snd_iprintf(buffer, "  sample clock source: autosync (internal anyway due to analog input setting)\n");
1797	} else if (snd_rme96_capture_getrate(rme96, &n) < 0) {
1798		snd_iprintf(buffer, "  sample clock source: autosync (internal anyway due to no valid signal)\n");
1799	} else {
1800		snd_iprintf(buffer, "  sample clock source: autosync\n");
1801	}
1802	if (rme96->wcreg & RME96_WCR_PRO) {
1803		snd_iprintf(buffer, "  format: AES/EBU (professional)\n");
1804	} else {
1805		snd_iprintf(buffer, "  format: IEC958 (consumer)\n");
1806	}
1807	if (rme96->wcreg & RME96_WCR_EMP) {
1808		snd_iprintf(buffer, "  emphasis: on\n");
1809	} else {
1810		snd_iprintf(buffer, "  emphasis: off\n");
1811	}
1812	if (rme96->wcreg & RME96_WCR_DOLBY) {
1813		snd_iprintf(buffer, "  non-audio (dolby): on\n");
1814	} else {
1815		snd_iprintf(buffer, "  non-audio (dolby): off\n");
1816	}
1817	if (RME96_HAS_ANALOG_IN(rme96)) {
1818		snd_iprintf(buffer, "\nAnalog output settings\n");
1819		switch (snd_rme96_getmontracks(rme96)) {
1820		case RME96_MONITOR_TRACKS_1_2:
1821			snd_iprintf(buffer, "  monitored ADAT tracks: 1+2\n");
1822			break;
1823		case RME96_MONITOR_TRACKS_3_4:
1824			snd_iprintf(buffer, "  monitored ADAT tracks: 3+4\n");
1825			break;
1826		case RME96_MONITOR_TRACKS_5_6:
1827			snd_iprintf(buffer, "  monitored ADAT tracks: 5+6\n");
1828			break;
1829		case RME96_MONITOR_TRACKS_7_8:
1830			snd_iprintf(buffer, "  monitored ADAT tracks: 7+8\n");
1831			break;
1832		}
1833		switch (snd_rme96_getattenuation(rme96)) {
1834		case RME96_ATTENUATION_0:
1835			snd_iprintf(buffer, "  attenuation: 0 dB\n");
1836			break;
1837		case RME96_ATTENUATION_6:
1838			snd_iprintf(buffer, "  attenuation: -6 dB\n");
1839			break;
1840		case RME96_ATTENUATION_12:
1841			snd_iprintf(buffer, "  attenuation: -12 dB\n");
1842			break;
1843		case RME96_ATTENUATION_18:
1844			snd_iprintf(buffer, "  attenuation: -18 dB\n");
1845			break;
1846		}
1847		snd_iprintf(buffer, "  volume left: %u\n", rme96->vol[0]);
1848		snd_iprintf(buffer, "  volume right: %u\n", rme96->vol[1]);
1849	}
1850}
1851
1852static void snd_rme96_proc_init(struct rme96 *rme96)
1853{
1854	snd_card_ro_proc_new(rme96->card, "rme96", rme96, snd_rme96_proc_read);
 
 
 
1855}
1856
1857/*
1858 * control interface
1859 */
1860
1861#define snd_rme96_info_loopback_control		snd_ctl_boolean_mono_info
1862
1863static int
1864snd_rme96_get_loopback_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1865{
1866	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1867	
1868	spin_lock_irq(&rme96->lock);
1869	ucontrol->value.integer.value[0] = rme96->wcreg & RME96_WCR_SEL ? 0 : 1;
1870	spin_unlock_irq(&rme96->lock);
1871	return 0;
1872}
1873static int
1874snd_rme96_put_loopback_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1875{
1876	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1877	unsigned int val;
1878	int change;
1879	
1880	val = ucontrol->value.integer.value[0] ? 0 : RME96_WCR_SEL;
1881	spin_lock_irq(&rme96->lock);
1882	val = (rme96->wcreg & ~RME96_WCR_SEL) | val;
1883	change = val != rme96->wcreg;
1884	rme96->wcreg = val;
1885	writel(val, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1886	spin_unlock_irq(&rme96->lock);
1887	return change;
1888}
1889
1890static int
1891snd_rme96_info_inputtype_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1892{
1893	static const char * const _texts[5] = {
1894		"Optical", "Coaxial", "Internal", "XLR", "Analog"
1895	};
1896	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1897	const char *texts[5] = {
1898		_texts[0], _texts[1], _texts[2], _texts[3], _texts[4]
1899	};
1900	int num_items;
1901	
1902	switch (rme96->pci->device) {
1903	case PCI_DEVICE_ID_RME_DIGI96:
1904	case PCI_DEVICE_ID_RME_DIGI96_8:
1905		num_items = 3;
1906		break;
1907	case PCI_DEVICE_ID_RME_DIGI96_8_PRO:
1908		num_items = 4;
1909		break;
1910	case PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST:
1911		if (rme96->rev > 4) {
1912			/* PST */
1913			num_items = 4;
1914			texts[3] = _texts[4]; /* Analog instead of XLR */
1915		} else {
1916			/* PAD */
1917			num_items = 5;
1918		}
1919		break;
1920	default:
1921		snd_BUG();
1922		return -EINVAL;
1923	}
1924	return snd_ctl_enum_info(uinfo, 1, num_items, texts);
1925}
1926static int
1927snd_rme96_get_inputtype_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1928{
1929	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1930	unsigned int items = 3;
1931	
1932	spin_lock_irq(&rme96->lock);
1933	ucontrol->value.enumerated.item[0] = snd_rme96_getinputtype(rme96);
1934	
1935	switch (rme96->pci->device) {
1936	case PCI_DEVICE_ID_RME_DIGI96:
1937	case PCI_DEVICE_ID_RME_DIGI96_8:
1938		items = 3;
1939		break;
1940	case PCI_DEVICE_ID_RME_DIGI96_8_PRO:
1941		items = 4;
1942		break;
1943	case PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST:
1944		if (rme96->rev > 4) {
1945			/* for handling PST case, (INPUT_ANALOG is moved to INPUT_XLR */
1946			if (ucontrol->value.enumerated.item[0] == RME96_INPUT_ANALOG) {
1947				ucontrol->value.enumerated.item[0] = RME96_INPUT_XLR;
1948			}
1949			items = 4;
1950		} else {
1951			items = 5;
1952		}
1953		break;
1954	default:
1955		snd_BUG();
1956		break;
1957	}
1958	if (ucontrol->value.enumerated.item[0] >= items) {
1959		ucontrol->value.enumerated.item[0] = items - 1;
1960	}
1961	
1962	spin_unlock_irq(&rme96->lock);
1963	return 0;
1964}
1965static int
1966snd_rme96_put_inputtype_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1967{
1968	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1969	unsigned int val;
1970	int change, items = 3;
1971	
1972	switch (rme96->pci->device) {
1973	case PCI_DEVICE_ID_RME_DIGI96:
1974	case PCI_DEVICE_ID_RME_DIGI96_8:
1975		items = 3;
1976		break;
1977	case PCI_DEVICE_ID_RME_DIGI96_8_PRO:
1978		items = 4;
1979		break;
1980	case PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST:
1981		if (rme96->rev > 4) {
1982			items = 4;
1983		} else {
1984			items = 5;
1985		}
1986		break;
1987	default:
1988		snd_BUG();
1989		break;
1990	}
1991	val = ucontrol->value.enumerated.item[0] % items;
1992	
1993	/* special case for PST */
1994	if (rme96->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST && rme96->rev > 4) {
1995		if (val == RME96_INPUT_XLR) {
1996			val = RME96_INPUT_ANALOG;
1997		}
1998	}
1999	
2000	spin_lock_irq(&rme96->lock);
2001	change = (int)val != snd_rme96_getinputtype(rme96);
2002	snd_rme96_setinputtype(rme96, val);
2003	spin_unlock_irq(&rme96->lock);
2004	return change;
2005}
2006
2007static int
2008snd_rme96_info_clockmode_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2009{
2010	static const char * const texts[3] = { "AutoSync", "Internal", "Word" };
2011	
2012	return snd_ctl_enum_info(uinfo, 1, 3, texts);
2013}
2014static int
2015snd_rme96_get_clockmode_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2016{
2017	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2018	
2019	spin_lock_irq(&rme96->lock);
2020	ucontrol->value.enumerated.item[0] = snd_rme96_getclockmode(rme96);
2021	spin_unlock_irq(&rme96->lock);
2022	return 0;
2023}
2024static int
2025snd_rme96_put_clockmode_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2026{
2027	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2028	unsigned int val;
2029	int change;
2030	
2031	val = ucontrol->value.enumerated.item[0] % 3;
2032	spin_lock_irq(&rme96->lock);
2033	change = (int)val != snd_rme96_getclockmode(rme96);
2034	snd_rme96_setclockmode(rme96, val);
2035	spin_unlock_irq(&rme96->lock);
2036	return change;
2037}
2038
2039static int
2040snd_rme96_info_attenuation_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2041{
2042	static const char * const texts[4] = {
2043		"0 dB", "-6 dB", "-12 dB", "-18 dB"
2044	};
2045	
2046	return snd_ctl_enum_info(uinfo, 1, 4, texts);
2047}
2048static int
2049snd_rme96_get_attenuation_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2050{
2051	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2052	
2053	spin_lock_irq(&rme96->lock);
2054	ucontrol->value.enumerated.item[0] = snd_rme96_getattenuation(rme96);
2055	spin_unlock_irq(&rme96->lock);
2056	return 0;
2057}
2058static int
2059snd_rme96_put_attenuation_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2060{
2061	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2062	unsigned int val;
2063	int change;
2064	
2065	val = ucontrol->value.enumerated.item[0] % 4;
2066	spin_lock_irq(&rme96->lock);
2067
2068	change = (int)val != snd_rme96_getattenuation(rme96);
2069	snd_rme96_setattenuation(rme96, val);
2070	spin_unlock_irq(&rme96->lock);
2071	return change;
2072}
2073
2074static int
2075snd_rme96_info_montracks_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2076{
2077	static const char * const texts[4] = { "1+2", "3+4", "5+6", "7+8" };
2078	
2079	return snd_ctl_enum_info(uinfo, 1, 4, texts);
2080}
2081static int
2082snd_rme96_get_montracks_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2083{
2084	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2085	
2086	spin_lock_irq(&rme96->lock);
2087	ucontrol->value.enumerated.item[0] = snd_rme96_getmontracks(rme96);
2088	spin_unlock_irq(&rme96->lock);
2089	return 0;
2090}
2091static int
2092snd_rme96_put_montracks_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2093{
2094	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2095	unsigned int val;
2096	int change;
2097	
2098	val = ucontrol->value.enumerated.item[0] % 4;
2099	spin_lock_irq(&rme96->lock);
2100	change = (int)val != snd_rme96_getmontracks(rme96);
2101	snd_rme96_setmontracks(rme96, val);
2102	spin_unlock_irq(&rme96->lock);
2103	return change;
2104}
2105
2106static u32 snd_rme96_convert_from_aes(struct snd_aes_iec958 *aes)
2107{
2108	u32 val = 0;
2109	val |= (aes->status[0] & IEC958_AES0_PROFESSIONAL) ? RME96_WCR_PRO : 0;
2110	val |= (aes->status[0] & IEC958_AES0_NONAUDIO) ? RME96_WCR_DOLBY : 0;
2111	if (val & RME96_WCR_PRO)
2112		val |= (aes->status[0] & IEC958_AES0_PRO_EMPHASIS_5015) ? RME96_WCR_EMP : 0;
2113	else
2114		val |= (aes->status[0] & IEC958_AES0_CON_EMPHASIS_5015) ? RME96_WCR_EMP : 0;
2115	return val;
2116}
2117
2118static void snd_rme96_convert_to_aes(struct snd_aes_iec958 *aes, u32 val)
2119{
2120	aes->status[0] = ((val & RME96_WCR_PRO) ? IEC958_AES0_PROFESSIONAL : 0) |
2121			 ((val & RME96_WCR_DOLBY) ? IEC958_AES0_NONAUDIO : 0);
2122	if (val & RME96_WCR_PRO)
2123		aes->status[0] |= (val & RME96_WCR_EMP) ? IEC958_AES0_PRO_EMPHASIS_5015 : 0;
2124	else
2125		aes->status[0] |= (val & RME96_WCR_EMP) ? IEC958_AES0_CON_EMPHASIS_5015 : 0;
2126}
2127
2128static int snd_rme96_control_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2129{
2130	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2131	uinfo->count = 1;
2132	return 0;
2133}
2134
2135static int snd_rme96_control_spdif_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2136{
2137	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2138	
2139	snd_rme96_convert_to_aes(&ucontrol->value.iec958, rme96->wcreg_spdif);
2140	return 0;
2141}
2142
2143static int snd_rme96_control_spdif_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2144{
2145	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2146	int change;
2147	u32 val;
2148	
2149	val = snd_rme96_convert_from_aes(&ucontrol->value.iec958);
2150	spin_lock_irq(&rme96->lock);
2151	change = val != rme96->wcreg_spdif;
2152	rme96->wcreg_spdif = val;
2153	spin_unlock_irq(&rme96->lock);
2154	return change;
2155}
2156
2157static int snd_rme96_control_spdif_stream_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2158{
2159	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2160	uinfo->count = 1;
2161	return 0;
2162}
2163
2164static int snd_rme96_control_spdif_stream_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2165{
2166	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2167	
2168	snd_rme96_convert_to_aes(&ucontrol->value.iec958, rme96->wcreg_spdif_stream);
2169	return 0;
2170}
2171
2172static int snd_rme96_control_spdif_stream_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2173{
2174	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2175	int change;
2176	u32 val;
2177	
2178	val = snd_rme96_convert_from_aes(&ucontrol->value.iec958);
2179	spin_lock_irq(&rme96->lock);
2180	change = val != rme96->wcreg_spdif_stream;
2181	rme96->wcreg_spdif_stream = val;
2182	rme96->wcreg &= ~(RME96_WCR_PRO | RME96_WCR_DOLBY | RME96_WCR_EMP);
2183	rme96->wcreg |= val;
2184	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
2185	spin_unlock_irq(&rme96->lock);
2186	return change;
2187}
2188
2189static int snd_rme96_control_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2190{
2191	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2192	uinfo->count = 1;
2193	return 0;
2194}
2195
2196static int snd_rme96_control_spdif_mask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2197{
2198	ucontrol->value.iec958.status[0] = kcontrol->private_value;
2199	return 0;
2200}
2201
2202static int
2203snd_rme96_dac_volume_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2204{
2205	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2206	
2207        uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2208        uinfo->count = 2;
2209        uinfo->value.integer.min = 0;
2210	uinfo->value.integer.max = RME96_185X_MAX_OUT(rme96);
2211        return 0;
2212}
2213
2214static int
2215snd_rme96_dac_volume_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *u)
2216{
2217	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2218
2219	spin_lock_irq(&rme96->lock);
2220        u->value.integer.value[0] = rme96->vol[0];
2221        u->value.integer.value[1] = rme96->vol[1];
2222	spin_unlock_irq(&rme96->lock);
2223
2224        return 0;
2225}
2226
2227static int
2228snd_rme96_dac_volume_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *u)
2229{
2230	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2231        int change = 0;
2232	unsigned int vol, maxvol;
2233
2234
2235	if (!RME96_HAS_ANALOG_OUT(rme96))
2236		return -EINVAL;
2237	maxvol = RME96_185X_MAX_OUT(rme96);
2238	spin_lock_irq(&rme96->lock);
2239	vol = u->value.integer.value[0];
2240	if (vol != rme96->vol[0] && vol <= maxvol) {
2241		rme96->vol[0] = vol;
2242		change = 1;
2243	}
2244	vol = u->value.integer.value[1];
2245	if (vol != rme96->vol[1] && vol <= maxvol) {
2246		rme96->vol[1] = vol;
2247		change = 1;
2248	}
2249	if (change)
2250		snd_rme96_apply_dac_volume(rme96);
2251	spin_unlock_irq(&rme96->lock);
2252
2253        return change;
2254}
2255
2256static const struct snd_kcontrol_new snd_rme96_controls[] = {
2257{
2258	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
2259	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
2260	.info =		snd_rme96_control_spdif_info,
2261	.get =		snd_rme96_control_spdif_get,
2262	.put =		snd_rme96_control_spdif_put
2263},
2264{
2265	.access =	SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE,
2266	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
2267	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM),
2268	.info =		snd_rme96_control_spdif_stream_info,
2269	.get =		snd_rme96_control_spdif_stream_get,
2270	.put =		snd_rme96_control_spdif_stream_put
2271},
2272{
2273	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
2274	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
2275	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
2276	.info =		snd_rme96_control_spdif_mask_info,
2277	.get =		snd_rme96_control_spdif_mask_get,
2278	.private_value = IEC958_AES0_NONAUDIO |
2279			IEC958_AES0_PROFESSIONAL |
2280			IEC958_AES0_CON_EMPHASIS
2281},
2282{
2283	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
2284	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
2285	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
2286	.info =		snd_rme96_control_spdif_mask_info,
2287	.get =		snd_rme96_control_spdif_mask_get,
2288	.private_value = IEC958_AES0_NONAUDIO |
2289			IEC958_AES0_PROFESSIONAL |
2290			IEC958_AES0_PRO_EMPHASIS
2291},
2292{
2293        .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2294	.name =         "Input Connector",
2295	.info =         snd_rme96_info_inputtype_control, 
2296	.get =          snd_rme96_get_inputtype_control,
2297	.put =          snd_rme96_put_inputtype_control 
2298},
2299{
2300        .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2301	.name =         "Loopback Input",
2302	.info =         snd_rme96_info_loopback_control,
2303	.get =          snd_rme96_get_loopback_control,
2304	.put =          snd_rme96_put_loopback_control
2305},
2306{
2307        .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2308	.name =         "Sample Clock Source",
2309	.info =         snd_rme96_info_clockmode_control, 
2310	.get =          snd_rme96_get_clockmode_control,
2311	.put =          snd_rme96_put_clockmode_control
2312},
2313{
2314        .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2315	.name =         "Monitor Tracks",
2316	.info =         snd_rme96_info_montracks_control, 
2317	.get =          snd_rme96_get_montracks_control,
2318	.put =          snd_rme96_put_montracks_control
2319},
2320{
2321        .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2322	.name =         "Attenuation",
2323	.info =         snd_rme96_info_attenuation_control, 
2324	.get =          snd_rme96_get_attenuation_control,
2325	.put =          snd_rme96_put_attenuation_control
2326},
2327{
2328        .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2329	.name =         "DAC Playback Volume",
2330	.info =         snd_rme96_dac_volume_info,
2331	.get =          snd_rme96_dac_volume_get,
2332	.put =          snd_rme96_dac_volume_put
2333}
2334};
2335
2336static int
2337snd_rme96_create_switches(struct snd_card *card,
2338			  struct rme96 *rme96)
2339{
2340	int idx, err;
2341	struct snd_kcontrol *kctl;
2342
2343	for (idx = 0; idx < 7; idx++) {
2344		if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_rme96_controls[idx], rme96))) < 0)
2345			return err;
2346		if (idx == 1)	/* IEC958 (S/PDIF) Stream */
2347			rme96->spdif_ctl = kctl;
2348	}
2349
2350	if (RME96_HAS_ANALOG_OUT(rme96)) {
2351		for (idx = 7; idx < 10; idx++)
2352			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_rme96_controls[idx], rme96))) < 0)
2353				return err;
2354	}
2355	
2356	return 0;
2357}
2358
2359/*
2360 * Card initialisation
2361 */
2362
2363#ifdef CONFIG_PM_SLEEP
2364
2365static int rme96_suspend(struct device *dev)
2366{
2367	struct snd_card *card = dev_get_drvdata(dev);
2368	struct rme96 *rme96 = card->private_data;
2369
2370	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
 
 
2371
2372	/* save capture & playback pointers */
2373	rme96->playback_pointer = readl(rme96->iobase + RME96_IO_GET_PLAY_POS)
2374				  & RME96_RCR_AUDIO_ADDR_MASK;
2375	rme96->capture_pointer = readl(rme96->iobase + RME96_IO_GET_REC_POS)
2376				 & RME96_RCR_AUDIO_ADDR_MASK;
2377
2378	/* save playback and capture buffers */
2379	memcpy_fromio(rme96->playback_suspend_buffer,
2380		      rme96->iobase + RME96_IO_PLAY_BUFFER, RME96_BUFFER_SIZE);
2381	memcpy_fromio(rme96->capture_suspend_buffer,
2382		      rme96->iobase + RME96_IO_REC_BUFFER, RME96_BUFFER_SIZE);
2383
2384	/* disable the DAC  */
2385	rme96->areg &= ~RME96_AR_DAC_EN;
2386	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
2387	return 0;
2388}
2389
2390static int rme96_resume(struct device *dev)
2391{
2392	struct snd_card *card = dev_get_drvdata(dev);
2393	struct rme96 *rme96 = card->private_data;
2394
2395	/* reset playback and record buffer pointers */
2396	writel(0, rme96->iobase + RME96_IO_SET_PLAY_POS
2397		  + rme96->playback_pointer);
2398	writel(0, rme96->iobase + RME96_IO_SET_REC_POS
2399		  + rme96->capture_pointer);
2400
2401	/* restore playback and capture buffers */
2402	memcpy_toio(rme96->iobase + RME96_IO_PLAY_BUFFER,
2403		    rme96->playback_suspend_buffer, RME96_BUFFER_SIZE);
2404	memcpy_toio(rme96->iobase + RME96_IO_REC_BUFFER,
2405		    rme96->capture_suspend_buffer, RME96_BUFFER_SIZE);
2406
2407	/* reset the ADC */
2408	writel(rme96->areg | RME96_AR_PD2,
2409	       rme96->iobase + RME96_IO_ADDITIONAL_REG);
2410	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
2411
2412	/* reset and enable DAC, restore analog volume */
2413	snd_rme96_reset_dac(rme96);
2414	rme96->areg |= RME96_AR_DAC_EN;
2415	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
2416	if (RME96_HAS_ANALOG_OUT(rme96)) {
2417		usleep_range(3000, 10000);
2418		snd_rme96_apply_dac_volume(rme96);
2419	}
2420
2421	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2422
2423	return 0;
2424}
2425
2426static SIMPLE_DEV_PM_OPS(rme96_pm, rme96_suspend, rme96_resume);
2427#define RME96_PM_OPS	&rme96_pm
2428#else
2429#define RME96_PM_OPS	NULL
2430#endif /* CONFIG_PM_SLEEP */
2431
2432static void snd_rme96_card_free(struct snd_card *card)
2433{
2434	snd_rme96_free(card->private_data);
2435}
2436
2437static int
2438snd_rme96_probe(struct pci_dev *pci,
2439		const struct pci_device_id *pci_id)
2440{
2441	static int dev;
2442	struct rme96 *rme96;
2443	struct snd_card *card;
2444	int err;
2445	u8 val;
2446
2447	if (dev >= SNDRV_CARDS) {
2448		return -ENODEV;
2449	}
2450	if (!enable[dev]) {
2451		dev++;
2452		return -ENOENT;
2453	}
2454	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
2455			   sizeof(struct rme96), &card);
2456	if (err < 0)
2457		return err;
2458	card->private_free = snd_rme96_card_free;
2459	rme96 = card->private_data;
2460	rme96->card = card;
2461	rme96->pci = pci;
2462	err = snd_rme96_create(rme96);
2463	if (err)
2464		goto free_card;
2465	
2466#ifdef CONFIG_PM_SLEEP
2467	rme96->playback_suspend_buffer = vmalloc(RME96_BUFFER_SIZE);
2468	if (!rme96->playback_suspend_buffer) {
2469		err = -ENOMEM;
2470		goto free_card;
2471	}
2472	rme96->capture_suspend_buffer = vmalloc(RME96_BUFFER_SIZE);
2473	if (!rme96->capture_suspend_buffer) {
2474		err = -ENOMEM;
2475		goto free_card;
2476	}
2477#endif
2478
2479	strcpy(card->driver, "Digi96");
2480	switch (rme96->pci->device) {
2481	case PCI_DEVICE_ID_RME_DIGI96:
2482		strcpy(card->shortname, "RME Digi96");
2483		break;
2484	case PCI_DEVICE_ID_RME_DIGI96_8:
2485		strcpy(card->shortname, "RME Digi96/8");
2486		break;
2487	case PCI_DEVICE_ID_RME_DIGI96_8_PRO:
2488		strcpy(card->shortname, "RME Digi96/8 PRO");
2489		break;
2490	case PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST:
2491		pci_read_config_byte(rme96->pci, 8, &val);
2492		if (val < 5) {
2493			strcpy(card->shortname, "RME Digi96/8 PAD");
2494		} else {
2495			strcpy(card->shortname, "RME Digi96/8 PST");
2496		}
2497		break;
2498	}
2499	sprintf(card->longname, "%s at 0x%lx, irq %d", card->shortname,
2500		rme96->port, rme96->irq);
2501	err = snd_card_register(card);
2502	if (err)
2503		goto free_card;
2504
2505	pci_set_drvdata(pci, card);
2506	dev++;
2507	return 0;
2508free_card:
2509	snd_card_free(card);
2510	return err;
2511}
2512
2513static void snd_rme96_remove(struct pci_dev *pci)
2514{
2515	snd_card_free(pci_get_drvdata(pci));
2516}
2517
2518static struct pci_driver rme96_driver = {
2519	.name = KBUILD_MODNAME,
2520	.id_table = snd_rme96_ids,
2521	.probe = snd_rme96_probe,
2522	.remove = snd_rme96_remove,
2523	.driver = {
2524		.pm = RME96_PM_OPS,
2525	},
2526};
2527
2528module_pci_driver(rme96_driver);
v4.17
 
   1/*
   2 *   ALSA driver for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST audio
   3 *   interfaces 
   4 *
   5 *	Copyright (c) 2000, 2001 Anders Torger <torger@ludd.luth.se>
   6 *    
   7 *      Thanks to Henk Hesselink <henk@anda.nl> for the analog volume control
   8 *      code.
   9 *
  10 *   This program is free software; you can redistribute it and/or modify
  11 *   it under the terms of the GNU General Public License as published by
  12 *   the Free Software Foundation; either version 2 of the License, or
  13 *   (at your option) any later version.
  14 *
  15 *   This program is distributed in the hope that it will be useful,
  16 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 *   GNU General Public License for more details.
  19 *
  20 *   You should have received a copy of the GNU General Public License
  21 *   along with this program; if not, write to the Free Software
  22 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  23 *
  24 */      
  25
  26#include <linux/delay.h>
  27#include <linux/init.h>
  28#include <linux/interrupt.h>
  29#include <linux/pci.h>
  30#include <linux/module.h>
  31#include <linux/vmalloc.h>
  32#include <linux/io.h>
  33
  34#include <sound/core.h>
  35#include <sound/info.h>
  36#include <sound/control.h>
  37#include <sound/pcm.h>
  38#include <sound/pcm_params.h>
  39#include <sound/asoundef.h>
  40#include <sound/initval.h>
  41
  42/* note, two last pcis should be equal, it is not a bug */
  43
  44MODULE_AUTHOR("Anders Torger <torger@ludd.luth.se>");
  45MODULE_DESCRIPTION("RME Digi96, Digi96/8, Digi96/8 PRO, Digi96/8 PST, "
  46		   "Digi96/8 PAD");
  47MODULE_LICENSE("GPL");
  48MODULE_SUPPORTED_DEVICE("{{RME,Digi96},"
  49		"{RME,Digi96/8},"
  50		"{RME,Digi96/8 PRO},"
  51		"{RME,Digi96/8 PST},"
  52		"{RME,Digi96/8 PAD}}");
  53
  54static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
  55static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
  56static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;	/* Enable this card */
  57
  58module_param_array(index, int, NULL, 0444);
  59MODULE_PARM_DESC(index, "Index value for RME Digi96 soundcard.");
  60module_param_array(id, charp, NULL, 0444);
  61MODULE_PARM_DESC(id, "ID string for RME Digi96 soundcard.");
  62module_param_array(enable, bool, NULL, 0444);
  63MODULE_PARM_DESC(enable, "Enable RME Digi96 soundcard.");
  64
  65/*
  66 * Defines for RME Digi96 series, from internal RME reference documents
  67 * dated 12.01.00
  68 */
  69
  70#define RME96_SPDIF_NCHANNELS 2
  71
  72/* Playback and capture buffer size */
  73#define RME96_BUFFER_SIZE 0x10000
  74
  75/* IO area size */
  76#define RME96_IO_SIZE 0x60000
  77
  78/* IO area offsets */
  79#define RME96_IO_PLAY_BUFFER      0x0
  80#define RME96_IO_REC_BUFFER       0x10000
  81#define RME96_IO_CONTROL_REGISTER 0x20000
  82#define RME96_IO_ADDITIONAL_REG   0x20004
  83#define RME96_IO_CONFIRM_PLAY_IRQ 0x20008
  84#define RME96_IO_CONFIRM_REC_IRQ  0x2000C
  85#define RME96_IO_SET_PLAY_POS     0x40000
  86#define RME96_IO_RESET_PLAY_POS   0x4FFFC
  87#define RME96_IO_SET_REC_POS      0x50000
  88#define RME96_IO_RESET_REC_POS    0x5FFFC
  89#define RME96_IO_GET_PLAY_POS     0x20000
  90#define RME96_IO_GET_REC_POS      0x30000
  91
  92/* Write control register bits */
  93#define RME96_WCR_START     (1 << 0)
  94#define RME96_WCR_START_2   (1 << 1)
  95#define RME96_WCR_GAIN_0    (1 << 2)
  96#define RME96_WCR_GAIN_1    (1 << 3)
  97#define RME96_WCR_MODE24    (1 << 4)
  98#define RME96_WCR_MODE24_2  (1 << 5)
  99#define RME96_WCR_BM        (1 << 6)
 100#define RME96_WCR_BM_2      (1 << 7)
 101#define RME96_WCR_ADAT      (1 << 8)
 102#define RME96_WCR_FREQ_0    (1 << 9)
 103#define RME96_WCR_FREQ_1    (1 << 10)
 104#define RME96_WCR_DS        (1 << 11)
 105#define RME96_WCR_PRO       (1 << 12)
 106#define RME96_WCR_EMP       (1 << 13)
 107#define RME96_WCR_SEL       (1 << 14)
 108#define RME96_WCR_MASTER    (1 << 15)
 109#define RME96_WCR_PD        (1 << 16)
 110#define RME96_WCR_INP_0     (1 << 17)
 111#define RME96_WCR_INP_1     (1 << 18)
 112#define RME96_WCR_THRU_0    (1 << 19)
 113#define RME96_WCR_THRU_1    (1 << 20)
 114#define RME96_WCR_THRU_2    (1 << 21)
 115#define RME96_WCR_THRU_3    (1 << 22)
 116#define RME96_WCR_THRU_4    (1 << 23)
 117#define RME96_WCR_THRU_5    (1 << 24)
 118#define RME96_WCR_THRU_6    (1 << 25)
 119#define RME96_WCR_THRU_7    (1 << 26)
 120#define RME96_WCR_DOLBY     (1 << 27)
 121#define RME96_WCR_MONITOR_0 (1 << 28)
 122#define RME96_WCR_MONITOR_1 (1 << 29)
 123#define RME96_WCR_ISEL      (1 << 30)
 124#define RME96_WCR_IDIS      (1 << 31)
 125
 126#define RME96_WCR_BITPOS_GAIN_0 2
 127#define RME96_WCR_BITPOS_GAIN_1 3
 128#define RME96_WCR_BITPOS_FREQ_0 9
 129#define RME96_WCR_BITPOS_FREQ_1 10
 130#define RME96_WCR_BITPOS_INP_0 17
 131#define RME96_WCR_BITPOS_INP_1 18
 132#define RME96_WCR_BITPOS_MONITOR_0 28
 133#define RME96_WCR_BITPOS_MONITOR_1 29
 134
 135/* Read control register bits */
 136#define RME96_RCR_AUDIO_ADDR_MASK 0xFFFF
 137#define RME96_RCR_IRQ_2     (1 << 16)
 138#define RME96_RCR_T_OUT     (1 << 17)
 139#define RME96_RCR_DEV_ID_0  (1 << 21)
 140#define RME96_RCR_DEV_ID_1  (1 << 22)
 141#define RME96_RCR_LOCK      (1 << 23)
 142#define RME96_RCR_VERF      (1 << 26)
 143#define RME96_RCR_F0        (1 << 27)
 144#define RME96_RCR_F1        (1 << 28)
 145#define RME96_RCR_F2        (1 << 29)
 146#define RME96_RCR_AUTOSYNC  (1 << 30)
 147#define RME96_RCR_IRQ       (1 << 31)
 148
 149#define RME96_RCR_BITPOS_F0 27
 150#define RME96_RCR_BITPOS_F1 28
 151#define RME96_RCR_BITPOS_F2 29
 152
 153/* Additional register bits */
 154#define RME96_AR_WSEL       (1 << 0)
 155#define RME96_AR_ANALOG     (1 << 1)
 156#define RME96_AR_FREQPAD_0  (1 << 2)
 157#define RME96_AR_FREQPAD_1  (1 << 3)
 158#define RME96_AR_FREQPAD_2  (1 << 4)
 159#define RME96_AR_PD2        (1 << 5)
 160#define RME96_AR_DAC_EN     (1 << 6)
 161#define RME96_AR_CLATCH     (1 << 7)
 162#define RME96_AR_CCLK       (1 << 8)
 163#define RME96_AR_CDATA      (1 << 9)
 164
 165#define RME96_AR_BITPOS_F0 2
 166#define RME96_AR_BITPOS_F1 3
 167#define RME96_AR_BITPOS_F2 4
 168
 169/* Monitor tracks */
 170#define RME96_MONITOR_TRACKS_1_2 0
 171#define RME96_MONITOR_TRACKS_3_4 1
 172#define RME96_MONITOR_TRACKS_5_6 2
 173#define RME96_MONITOR_TRACKS_7_8 3
 174
 175/* Attenuation */
 176#define RME96_ATTENUATION_0 0
 177#define RME96_ATTENUATION_6 1
 178#define RME96_ATTENUATION_12 2
 179#define RME96_ATTENUATION_18 3
 180
 181/* Input types */
 182#define RME96_INPUT_OPTICAL 0
 183#define RME96_INPUT_COAXIAL 1
 184#define RME96_INPUT_INTERNAL 2
 185#define RME96_INPUT_XLR 3
 186#define RME96_INPUT_ANALOG 4
 187
 188/* Clock modes */
 189#define RME96_CLOCKMODE_SLAVE 0
 190#define RME96_CLOCKMODE_MASTER 1
 191#define RME96_CLOCKMODE_WORDCLOCK 2
 192
 193/* Block sizes in bytes */
 194#define RME96_SMALL_BLOCK_SIZE 2048
 195#define RME96_LARGE_BLOCK_SIZE 8192
 196
 197/* Volume control */
 198#define RME96_AD1852_VOL_BITS 14
 199#define RME96_AD1855_VOL_BITS 10
 200
 201/* Defines for snd_rme96_trigger */
 202#define RME96_TB_START_PLAYBACK 1
 203#define RME96_TB_START_CAPTURE 2
 204#define RME96_TB_STOP_PLAYBACK 4
 205#define RME96_TB_STOP_CAPTURE 8
 206#define RME96_TB_RESET_PLAYPOS 16
 207#define RME96_TB_RESET_CAPTUREPOS 32
 208#define RME96_TB_CLEAR_PLAYBACK_IRQ 64
 209#define RME96_TB_CLEAR_CAPTURE_IRQ 128
 210#define RME96_RESUME_PLAYBACK	(RME96_TB_START_PLAYBACK)
 211#define RME96_RESUME_CAPTURE	(RME96_TB_START_CAPTURE)
 212#define RME96_RESUME_BOTH	(RME96_RESUME_PLAYBACK \
 213				| RME96_RESUME_CAPTURE)
 214#define RME96_START_PLAYBACK	(RME96_TB_START_PLAYBACK \
 215				| RME96_TB_RESET_PLAYPOS)
 216#define RME96_START_CAPTURE	(RME96_TB_START_CAPTURE \
 217				| RME96_TB_RESET_CAPTUREPOS)
 218#define RME96_START_BOTH	(RME96_START_PLAYBACK \
 219				| RME96_START_CAPTURE)
 220#define RME96_STOP_PLAYBACK	(RME96_TB_STOP_PLAYBACK \
 221				| RME96_TB_CLEAR_PLAYBACK_IRQ)
 222#define RME96_STOP_CAPTURE	(RME96_TB_STOP_CAPTURE \
 223				| RME96_TB_CLEAR_CAPTURE_IRQ)
 224#define RME96_STOP_BOTH		(RME96_STOP_PLAYBACK \
 225				| RME96_STOP_CAPTURE)
 226
 227struct rme96 {
 228	spinlock_t    lock;
 229	int irq;
 230	unsigned long port;
 231	void __iomem *iobase;
 232	
 233	u32 wcreg;    /* cached write control register value */
 234	u32 wcreg_spdif;		/* S/PDIF setup */
 235	u32 wcreg_spdif_stream;		/* S/PDIF setup (temporary) */
 236	u32 rcreg;    /* cached read control register value */
 237	u32 areg;     /* cached additional register value */
 238	u16 vol[2]; /* cached volume of analog output */
 239
 240	u8 rev; /* card revision number */
 241
 242#ifdef CONFIG_PM_SLEEP
 243	u32 playback_pointer;
 244	u32 capture_pointer;
 245	void *playback_suspend_buffer;
 246	void *capture_suspend_buffer;
 247#endif
 248
 249	struct snd_pcm_substream *playback_substream;
 250	struct snd_pcm_substream *capture_substream;
 251
 252	int playback_frlog; /* log2 of framesize */
 253	int capture_frlog;
 254	
 255        size_t playback_periodsize; /* in bytes, zero if not used */
 256	size_t capture_periodsize; /* in bytes, zero if not used */
 257
 258	struct snd_card *card;
 259	struct snd_pcm *spdif_pcm;
 260	struct snd_pcm *adat_pcm; 
 261	struct pci_dev     *pci;
 262	struct snd_kcontrol   *spdif_ctl;
 263};
 264
 265static const struct pci_device_id snd_rme96_ids[] = {
 266	{ PCI_VDEVICE(XILINX, PCI_DEVICE_ID_RME_DIGI96), 0, },
 267	{ PCI_VDEVICE(XILINX, PCI_DEVICE_ID_RME_DIGI96_8), 0, },
 268	{ PCI_VDEVICE(XILINX, PCI_DEVICE_ID_RME_DIGI96_8_PRO), 0, },
 269	{ PCI_VDEVICE(XILINX, PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST), 0, },
 270	{ 0, }
 271};
 272
 273MODULE_DEVICE_TABLE(pci, snd_rme96_ids);
 274
 275#define RME96_ISPLAYING(rme96) ((rme96)->wcreg & RME96_WCR_START)
 276#define RME96_ISRECORDING(rme96) ((rme96)->wcreg & RME96_WCR_START_2)
 277#define	RME96_HAS_ANALOG_IN(rme96) ((rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST)
 278#define	RME96_HAS_ANALOG_OUT(rme96) ((rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PRO || \
 279				     (rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST)
 280#define	RME96_DAC_IS_1852(rme96) (RME96_HAS_ANALOG_OUT(rme96) && (rme96)->rev >= 4)
 281#define	RME96_DAC_IS_1855(rme96) (((rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST && (rme96)->rev < 4) || \
 282			          ((rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PRO && (rme96)->rev == 2))
 283#define	RME96_185X_MAX_OUT(rme96) ((1 << (RME96_DAC_IS_1852(rme96) ? RME96_AD1852_VOL_BITS : RME96_AD1855_VOL_BITS)) - 1)
 284
 285static int
 286snd_rme96_playback_prepare(struct snd_pcm_substream *substream);
 287
 288static int
 289snd_rme96_capture_prepare(struct snd_pcm_substream *substream);
 290
 291static int
 292snd_rme96_playback_trigger(struct snd_pcm_substream *substream, 
 293			   int cmd);
 294
 295static int
 296snd_rme96_capture_trigger(struct snd_pcm_substream *substream, 
 297			  int cmd);
 298
 299static snd_pcm_uframes_t
 300snd_rme96_playback_pointer(struct snd_pcm_substream *substream);
 301
 302static snd_pcm_uframes_t
 303snd_rme96_capture_pointer(struct snd_pcm_substream *substream);
 304
 305static void snd_rme96_proc_init(struct rme96 *rme96);
 306
 307static int
 308snd_rme96_create_switches(struct snd_card *card,
 309			  struct rme96 *rme96);
 310
 311static int
 312snd_rme96_getinputtype(struct rme96 *rme96);
 313
 314static inline unsigned int
 315snd_rme96_playback_ptr(struct rme96 *rme96)
 316{
 317	return (readl(rme96->iobase + RME96_IO_GET_PLAY_POS)
 318		& RME96_RCR_AUDIO_ADDR_MASK) >> rme96->playback_frlog;
 319}
 320
 321static inline unsigned int
 322snd_rme96_capture_ptr(struct rme96 *rme96)
 323{
 324	return (readl(rme96->iobase + RME96_IO_GET_REC_POS)
 325		& RME96_RCR_AUDIO_ADDR_MASK) >> rme96->capture_frlog;
 326}
 327
 328static int
 329snd_rme96_playback_silence(struct snd_pcm_substream *substream,
 330			   int channel, unsigned long pos, unsigned long count)
 331{
 332	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
 333
 334	memset_io(rme96->iobase + RME96_IO_PLAY_BUFFER + pos,
 335		  0, count);
 336	return 0;
 337}
 338
 339static int
 340snd_rme96_playback_copy(struct snd_pcm_substream *substream,
 341			int channel, unsigned long pos,
 342			void __user *src, unsigned long count)
 343{
 344	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
 345
 346	return copy_from_user_toio(rme96->iobase + RME96_IO_PLAY_BUFFER + pos,
 347				   src, count);
 348}
 349
 350static int
 351snd_rme96_playback_copy_kernel(struct snd_pcm_substream *substream,
 352			       int channel, unsigned long pos,
 353			       void *src, unsigned long count)
 354{
 355	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
 356
 357	memcpy_toio(rme96->iobase + RME96_IO_PLAY_BUFFER + pos, src, count);
 358	return 0;
 359}
 360
 361static int
 362snd_rme96_capture_copy(struct snd_pcm_substream *substream,
 363		       int channel, unsigned long pos,
 364		       void __user *dst, unsigned long count)
 365{
 366	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
 367
 368	return copy_to_user_fromio(dst,
 369				   rme96->iobase + RME96_IO_REC_BUFFER + pos,
 370				   count);
 371}
 372
 373static int
 374snd_rme96_capture_copy_kernel(struct snd_pcm_substream *substream,
 375			      int channel, unsigned long pos,
 376			      void *dst, unsigned long count)
 377{
 378	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
 379
 380	memcpy_fromio(dst, rme96->iobase + RME96_IO_REC_BUFFER + pos, count);
 381	return 0;
 382}
 383
 384/*
 385 * Digital output capabilities (S/PDIF)
 386 */
 387static const struct snd_pcm_hardware snd_rme96_playback_spdif_info =
 388{
 389	.info =		     (SNDRV_PCM_INFO_MMAP_IOMEM |
 390			      SNDRV_PCM_INFO_MMAP_VALID |
 391			      SNDRV_PCM_INFO_SYNC_START |
 392			      SNDRV_PCM_INFO_RESUME |
 393			      SNDRV_PCM_INFO_INTERLEAVED |
 394			      SNDRV_PCM_INFO_PAUSE),
 395	.formats =	     (SNDRV_PCM_FMTBIT_S16_LE |
 396			      SNDRV_PCM_FMTBIT_S32_LE),
 397	.rates =	     (SNDRV_PCM_RATE_32000 |
 398			      SNDRV_PCM_RATE_44100 | 
 399			      SNDRV_PCM_RATE_48000 | 
 400			      SNDRV_PCM_RATE_64000 |
 401			      SNDRV_PCM_RATE_88200 | 
 402			      SNDRV_PCM_RATE_96000),
 403	.rate_min =	     32000,
 404	.rate_max =	     96000,
 405	.channels_min =	     2,
 406	.channels_max =	     2,
 407	.buffer_bytes_max =  RME96_BUFFER_SIZE,
 408	.period_bytes_min =  RME96_SMALL_BLOCK_SIZE,
 409	.period_bytes_max =  RME96_LARGE_BLOCK_SIZE,
 410	.periods_min =	     RME96_BUFFER_SIZE / RME96_LARGE_BLOCK_SIZE,
 411	.periods_max =	     RME96_BUFFER_SIZE / RME96_SMALL_BLOCK_SIZE,
 412	.fifo_size =	     0,
 413};
 414
 415/*
 416 * Digital input capabilities (S/PDIF)
 417 */
 418static const struct snd_pcm_hardware snd_rme96_capture_spdif_info =
 419{
 420	.info =		     (SNDRV_PCM_INFO_MMAP_IOMEM |
 421			      SNDRV_PCM_INFO_MMAP_VALID |
 422			      SNDRV_PCM_INFO_SYNC_START |
 423			      SNDRV_PCM_INFO_RESUME |
 424			      SNDRV_PCM_INFO_INTERLEAVED |
 425			      SNDRV_PCM_INFO_PAUSE),
 426	.formats =	     (SNDRV_PCM_FMTBIT_S16_LE |
 427			      SNDRV_PCM_FMTBIT_S32_LE),
 428	.rates =	     (SNDRV_PCM_RATE_32000 |
 429			      SNDRV_PCM_RATE_44100 | 
 430			      SNDRV_PCM_RATE_48000 | 
 431			      SNDRV_PCM_RATE_64000 |
 432			      SNDRV_PCM_RATE_88200 | 
 433			      SNDRV_PCM_RATE_96000),
 434	.rate_min =	     32000,
 435	.rate_max =	     96000,
 436	.channels_min =	     2,
 437	.channels_max =	     2,
 438	.buffer_bytes_max =  RME96_BUFFER_SIZE,
 439	.period_bytes_min =  RME96_SMALL_BLOCK_SIZE,
 440	.period_bytes_max =  RME96_LARGE_BLOCK_SIZE,
 441	.periods_min =	     RME96_BUFFER_SIZE / RME96_LARGE_BLOCK_SIZE,
 442	.periods_max =	     RME96_BUFFER_SIZE / RME96_SMALL_BLOCK_SIZE,
 443	.fifo_size =	     0,
 444};
 445
 446/*
 447 * Digital output capabilities (ADAT)
 448 */
 449static const struct snd_pcm_hardware snd_rme96_playback_adat_info =
 450{
 451	.info =		     (SNDRV_PCM_INFO_MMAP_IOMEM |
 452			      SNDRV_PCM_INFO_MMAP_VALID |
 453			      SNDRV_PCM_INFO_SYNC_START |
 454			      SNDRV_PCM_INFO_RESUME |
 455			      SNDRV_PCM_INFO_INTERLEAVED |
 456			      SNDRV_PCM_INFO_PAUSE),
 457	.formats =	     (SNDRV_PCM_FMTBIT_S16_LE |
 458			      SNDRV_PCM_FMTBIT_S32_LE),
 459	.rates =             (SNDRV_PCM_RATE_44100 | 
 460			      SNDRV_PCM_RATE_48000),
 461	.rate_min =          44100,
 462	.rate_max =          48000,
 463	.channels_min =      8,
 464	.channels_max =	     8,
 465	.buffer_bytes_max =  RME96_BUFFER_SIZE,
 466	.period_bytes_min =  RME96_SMALL_BLOCK_SIZE,
 467	.period_bytes_max =  RME96_LARGE_BLOCK_SIZE,
 468	.periods_min =	     RME96_BUFFER_SIZE / RME96_LARGE_BLOCK_SIZE,
 469	.periods_max =	     RME96_BUFFER_SIZE / RME96_SMALL_BLOCK_SIZE,
 470	.fifo_size =	     0,
 471};
 472
 473/*
 474 * Digital input capabilities (ADAT)
 475 */
 476static const struct snd_pcm_hardware snd_rme96_capture_adat_info =
 477{
 478	.info =		     (SNDRV_PCM_INFO_MMAP_IOMEM |
 479			      SNDRV_PCM_INFO_MMAP_VALID |
 480			      SNDRV_PCM_INFO_SYNC_START |
 481			      SNDRV_PCM_INFO_RESUME |
 482			      SNDRV_PCM_INFO_INTERLEAVED |
 483			      SNDRV_PCM_INFO_PAUSE),
 484	.formats =	     (SNDRV_PCM_FMTBIT_S16_LE |
 485			      SNDRV_PCM_FMTBIT_S32_LE),
 486	.rates =	     (SNDRV_PCM_RATE_44100 | 
 487			      SNDRV_PCM_RATE_48000),
 488	.rate_min =          44100,
 489	.rate_max =          48000,
 490	.channels_min =      8,
 491	.channels_max =	     8,
 492	.buffer_bytes_max =  RME96_BUFFER_SIZE,
 493	.period_bytes_min =  RME96_SMALL_BLOCK_SIZE,
 494	.period_bytes_max =  RME96_LARGE_BLOCK_SIZE,
 495	.periods_min =	     RME96_BUFFER_SIZE / RME96_LARGE_BLOCK_SIZE,
 496	.periods_max =	     RME96_BUFFER_SIZE / RME96_SMALL_BLOCK_SIZE,
 497	.fifo_size =         0,
 498};
 499
 500/*
 501 * The CDATA, CCLK and CLATCH bits can be used to write to the SPI interface
 502 * of the AD1852 or AD1852 D/A converter on the board.  CDATA must be set up
 503 * on the falling edge of CCLK and be stable on the rising edge.  The rising
 504 * edge of CLATCH after the last data bit clocks in the whole data word.
 505 * A fast processor could probably drive the SPI interface faster than the
 506 * DAC can handle (3MHz for the 1855, unknown for the 1852).  The udelay(1)
 507 * limits the data rate to 500KHz and only causes a delay of 33 microsecs.
 508 *
 509 * NOTE: increased delay from 1 to 10, since there where problems setting
 510 * the volume.
 511 */
 512static void
 513snd_rme96_write_SPI(struct rme96 *rme96, u16 val)
 514{
 515	int i;
 516
 517	for (i = 0; i < 16; i++) {
 518		if (val & 0x8000) {
 519			rme96->areg |= RME96_AR_CDATA;
 520		} else {
 521			rme96->areg &= ~RME96_AR_CDATA;
 522		}
 523		rme96->areg &= ~(RME96_AR_CCLK | RME96_AR_CLATCH);
 524		writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
 525		udelay(10);
 526		rme96->areg |= RME96_AR_CCLK;
 527		writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
 528		udelay(10);
 529		val <<= 1;
 530	}
 531	rme96->areg &= ~(RME96_AR_CCLK | RME96_AR_CDATA);
 532	rme96->areg |= RME96_AR_CLATCH;
 533	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
 534	udelay(10);
 535	rme96->areg &= ~RME96_AR_CLATCH;
 536	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
 537}
 538
 539static void
 540snd_rme96_apply_dac_volume(struct rme96 *rme96)
 541{
 542	if (RME96_DAC_IS_1852(rme96)) {
 543		snd_rme96_write_SPI(rme96, (rme96->vol[0] << 2) | 0x0);
 544		snd_rme96_write_SPI(rme96, (rme96->vol[1] << 2) | 0x2);
 545	} else if (RME96_DAC_IS_1855(rme96)) {
 546		snd_rme96_write_SPI(rme96, (rme96->vol[0] & 0x3FF) | 0x000);
 547		snd_rme96_write_SPI(rme96, (rme96->vol[1] & 0x3FF) | 0x400);
 548	}
 549}
 550
 551static void
 552snd_rme96_reset_dac(struct rme96 *rme96)
 553{
 554	writel(rme96->wcreg | RME96_WCR_PD,
 555	       rme96->iobase + RME96_IO_CONTROL_REGISTER);
 556	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
 557}
 558
 559static int
 560snd_rme96_getmontracks(struct rme96 *rme96)
 561{
 562	return ((rme96->wcreg >> RME96_WCR_BITPOS_MONITOR_0) & 1) +
 563		(((rme96->wcreg >> RME96_WCR_BITPOS_MONITOR_1) & 1) << 1);
 564}
 565
 566static int
 567snd_rme96_setmontracks(struct rme96 *rme96,
 568		       int montracks)
 569{
 570	if (montracks & 1) {
 571		rme96->wcreg |= RME96_WCR_MONITOR_0;
 572	} else {
 573		rme96->wcreg &= ~RME96_WCR_MONITOR_0;
 574	}
 575	if (montracks & 2) {
 576		rme96->wcreg |= RME96_WCR_MONITOR_1;
 577	} else {
 578		rme96->wcreg &= ~RME96_WCR_MONITOR_1;
 579	}
 580	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
 581	return 0;
 582}
 583
 584static int
 585snd_rme96_getattenuation(struct rme96 *rme96)
 586{
 587	return ((rme96->wcreg >> RME96_WCR_BITPOS_GAIN_0) & 1) +
 588		(((rme96->wcreg >> RME96_WCR_BITPOS_GAIN_1) & 1) << 1);
 589}
 590
 591static int
 592snd_rme96_setattenuation(struct rme96 *rme96,
 593			 int attenuation)
 594{
 595	switch (attenuation) {
 596	case 0:
 597		rme96->wcreg = (rme96->wcreg & ~RME96_WCR_GAIN_0) &
 598			~RME96_WCR_GAIN_1;
 599		break;
 600	case 1:
 601		rme96->wcreg = (rme96->wcreg | RME96_WCR_GAIN_0) &
 602			~RME96_WCR_GAIN_1;
 603		break;
 604	case 2:
 605		rme96->wcreg = (rme96->wcreg & ~RME96_WCR_GAIN_0) |
 606			RME96_WCR_GAIN_1;
 607		break;
 608	case 3:
 609		rme96->wcreg = (rme96->wcreg | RME96_WCR_GAIN_0) |
 610			RME96_WCR_GAIN_1;
 611		break;
 612	default:
 613		return -EINVAL;
 614	}
 615	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
 616	return 0;
 617}
 618
 619static int
 620snd_rme96_capture_getrate(struct rme96 *rme96,
 621			  int *is_adat)
 622{	
 623	int n, rate;
 624
 625	*is_adat = 0;
 626	if (rme96->areg & RME96_AR_ANALOG) {
 627		/* Analog input, overrides S/PDIF setting */
 628		n = ((rme96->areg >> RME96_AR_BITPOS_F0) & 1) +
 629			(((rme96->areg >> RME96_AR_BITPOS_F1) & 1) << 1);
 630		switch (n) {
 631		case 1:
 632			rate = 32000;
 633			break;
 634		case 2:
 635			rate = 44100;
 636			break;
 637		case 3:
 638			rate = 48000;
 639			break;
 640		default:
 641			return -1;
 642		}
 643		return (rme96->areg & RME96_AR_BITPOS_F2) ? rate << 1 : rate;
 644	}
 645
 646	rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
 647	if (rme96->rcreg & RME96_RCR_LOCK) {
 648		/* ADAT rate */
 649		*is_adat = 1;
 650		if (rme96->rcreg & RME96_RCR_T_OUT) {
 651			return 48000;
 652		}
 653		return 44100;
 654	}
 655
 656	if (rme96->rcreg & RME96_RCR_VERF) {
 657		return -1;
 658	}
 659	
 660	/* S/PDIF rate */
 661	n = ((rme96->rcreg >> RME96_RCR_BITPOS_F0) & 1) +
 662		(((rme96->rcreg >> RME96_RCR_BITPOS_F1) & 1) << 1) +
 663		(((rme96->rcreg >> RME96_RCR_BITPOS_F2) & 1) << 2);
 664	
 665	switch (n) {
 666	case 0:		
 667		if (rme96->rcreg & RME96_RCR_T_OUT) {
 668			return 64000;
 669		}
 670		return -1;
 671	case 3: return 96000;
 672	case 4: return 88200;
 673	case 5: return 48000;
 674	case 6: return 44100;
 675	case 7: return 32000;
 676	default:
 677		break;
 678	}
 679	return -1;
 680}
 681
 682static int
 683snd_rme96_playback_getrate(struct rme96 *rme96)
 684{
 685	int rate, dummy;
 686
 687	if (!(rme96->wcreg & RME96_WCR_MASTER) &&
 688            snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
 689	    (rate = snd_rme96_capture_getrate(rme96, &dummy)) > 0)
 690	{
 691	        /* slave clock */
 692	        return rate;
 693	}
 694	rate = ((rme96->wcreg >> RME96_WCR_BITPOS_FREQ_0) & 1) +
 695		(((rme96->wcreg >> RME96_WCR_BITPOS_FREQ_1) & 1) << 1);
 696	switch (rate) {
 697	case 1:
 698		rate = 32000;
 699		break;
 700	case 2:
 701		rate = 44100;
 702		break;
 703	case 3:
 704		rate = 48000;
 705		break;
 706	default:
 707		return -1;
 708	}
 709	return (rme96->wcreg & RME96_WCR_DS) ? rate << 1 : rate;
 710}
 711
 712static int
 713snd_rme96_playback_setrate(struct rme96 *rme96,
 714			   int rate)
 715{
 716	int ds;
 717
 718	ds = rme96->wcreg & RME96_WCR_DS;
 719	switch (rate) {
 720	case 32000:
 721		rme96->wcreg &= ~RME96_WCR_DS;
 722		rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_0) &
 723			~RME96_WCR_FREQ_1;
 724		break;
 725	case 44100:
 726		rme96->wcreg &= ~RME96_WCR_DS;
 727		rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_1) &
 728			~RME96_WCR_FREQ_0;
 729		break;
 730	case 48000:
 731		rme96->wcreg &= ~RME96_WCR_DS;
 732		rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_0) |
 733			RME96_WCR_FREQ_1;
 734		break;
 735	case 64000:
 736		rme96->wcreg |= RME96_WCR_DS;
 737		rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_0) &
 738			~RME96_WCR_FREQ_1;
 739		break;
 740	case 88200:
 741		rme96->wcreg |= RME96_WCR_DS;
 742		rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_1) &
 743			~RME96_WCR_FREQ_0;
 744		break;
 745	case 96000:
 746		rme96->wcreg |= RME96_WCR_DS;
 747		rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_0) |
 748			RME96_WCR_FREQ_1;
 749		break;
 750	default:
 751		return -EINVAL;
 752	}
 753	if ((!ds && rme96->wcreg & RME96_WCR_DS) ||
 754	    (ds && !(rme96->wcreg & RME96_WCR_DS)))
 755	{
 756		/* change to/from double-speed: reset the DAC (if available) */
 757		snd_rme96_reset_dac(rme96);
 758		return 1; /* need to restore volume */
 759	} else {
 760		writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
 761		return 0;
 762	}
 763}
 764
 765static int
 766snd_rme96_capture_analog_setrate(struct rme96 *rme96,
 767				 int rate)
 768{
 769	switch (rate) {
 770	case 32000:
 771		rme96->areg = ((rme96->areg | RME96_AR_FREQPAD_0) &
 772			       ~RME96_AR_FREQPAD_1) & ~RME96_AR_FREQPAD_2;
 773		break;
 774	case 44100:
 775		rme96->areg = ((rme96->areg & ~RME96_AR_FREQPAD_0) |
 776			       RME96_AR_FREQPAD_1) & ~RME96_AR_FREQPAD_2;
 777		break;
 778	case 48000:
 779		rme96->areg = ((rme96->areg | RME96_AR_FREQPAD_0) |
 780			       RME96_AR_FREQPAD_1) & ~RME96_AR_FREQPAD_2;
 781		break;
 782	case 64000:
 783		if (rme96->rev < 4) {
 784			return -EINVAL;
 785		}
 786		rme96->areg = ((rme96->areg | RME96_AR_FREQPAD_0) &
 787			       ~RME96_AR_FREQPAD_1) | RME96_AR_FREQPAD_2;
 788		break;
 789	case 88200:
 790		if (rme96->rev < 4) {
 791			return -EINVAL;
 792		}
 793		rme96->areg = ((rme96->areg & ~RME96_AR_FREQPAD_0) |
 794			       RME96_AR_FREQPAD_1) | RME96_AR_FREQPAD_2;
 795		break;
 796	case 96000:
 797		rme96->areg = ((rme96->areg | RME96_AR_FREQPAD_0) |
 798			       RME96_AR_FREQPAD_1) | RME96_AR_FREQPAD_2;
 799		break;
 800	default:
 801		return -EINVAL;
 802	}
 803	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
 804	return 0;
 805}
 806
 807static int
 808snd_rme96_setclockmode(struct rme96 *rme96,
 809		       int mode)
 810{
 811	switch (mode) {
 812	case RME96_CLOCKMODE_SLAVE:
 813	        /* AutoSync */ 
 814		rme96->wcreg &= ~RME96_WCR_MASTER;
 815		rme96->areg &= ~RME96_AR_WSEL;
 816		break;
 817	case RME96_CLOCKMODE_MASTER:
 818	        /* Internal */
 819		rme96->wcreg |= RME96_WCR_MASTER;
 820		rme96->areg &= ~RME96_AR_WSEL;
 821		break;
 822	case RME96_CLOCKMODE_WORDCLOCK:
 823		/* Word clock is a master mode */
 824		rme96->wcreg |= RME96_WCR_MASTER; 
 825		rme96->areg |= RME96_AR_WSEL;
 826		break;
 827	default:
 828		return -EINVAL;
 829	}
 830	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
 831	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
 832	return 0;
 833}
 834
 835static int
 836snd_rme96_getclockmode(struct rme96 *rme96)
 837{
 838	if (rme96->areg & RME96_AR_WSEL) {
 839		return RME96_CLOCKMODE_WORDCLOCK;
 840	}
 841	return (rme96->wcreg & RME96_WCR_MASTER) ? RME96_CLOCKMODE_MASTER :
 842		RME96_CLOCKMODE_SLAVE;
 843}
 844
 845static int
 846snd_rme96_setinputtype(struct rme96 *rme96,
 847		       int type)
 848{
 849	int n;
 850
 851	switch (type) {
 852	case RME96_INPUT_OPTICAL:
 853		rme96->wcreg = (rme96->wcreg & ~RME96_WCR_INP_0) &
 854			~RME96_WCR_INP_1;
 855		break;
 856	case RME96_INPUT_COAXIAL:
 857		rme96->wcreg = (rme96->wcreg | RME96_WCR_INP_0) &
 858			~RME96_WCR_INP_1;
 859		break;
 860	case RME96_INPUT_INTERNAL:
 861		rme96->wcreg = (rme96->wcreg & ~RME96_WCR_INP_0) |
 862			RME96_WCR_INP_1;
 863		break;
 864	case RME96_INPUT_XLR:
 865		if ((rme96->pci->device != PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST &&
 866		     rme96->pci->device != PCI_DEVICE_ID_RME_DIGI96_8_PRO) ||
 867		    (rme96->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST &&
 868		     rme96->rev > 4))
 869		{
 870			/* Only Digi96/8 PRO and Digi96/8 PAD supports XLR */
 871			return -EINVAL;
 872		}
 873		rme96->wcreg = (rme96->wcreg | RME96_WCR_INP_0) |
 874			RME96_WCR_INP_1;
 875		break;
 876	case RME96_INPUT_ANALOG:
 877		if (!RME96_HAS_ANALOG_IN(rme96)) {
 878			return -EINVAL;
 879		}
 880		rme96->areg |= RME96_AR_ANALOG;
 881		writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
 882		if (rme96->rev < 4) {
 883			/*
 884			 * Revision less than 004 does not support 64 and
 885			 * 88.2 kHz
 886			 */
 887			if (snd_rme96_capture_getrate(rme96, &n) == 88200) {
 888				snd_rme96_capture_analog_setrate(rme96, 44100);
 889			}
 890			if (snd_rme96_capture_getrate(rme96, &n) == 64000) {
 891				snd_rme96_capture_analog_setrate(rme96, 32000);
 892			}
 893		}
 894		return 0;
 895	default:
 896		return -EINVAL;
 897	}
 898	if (type != RME96_INPUT_ANALOG && RME96_HAS_ANALOG_IN(rme96)) {
 899		rme96->areg &= ~RME96_AR_ANALOG;
 900		writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
 901	}
 902	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
 903	return 0;
 904}
 905
 906static int
 907snd_rme96_getinputtype(struct rme96 *rme96)
 908{
 909	if (rme96->areg & RME96_AR_ANALOG) {
 910		return RME96_INPUT_ANALOG;
 911	}
 912	return ((rme96->wcreg >> RME96_WCR_BITPOS_INP_0) & 1) +
 913		(((rme96->wcreg >> RME96_WCR_BITPOS_INP_1) & 1) << 1);
 914}
 915
 916static void
 917snd_rme96_setframelog(struct rme96 *rme96,
 918		      int n_channels,
 919		      int is_playback)
 920{
 921	int frlog;
 922	
 923	if (n_channels == 2) {
 924		frlog = 1;
 925	} else {
 926		/* assume 8 channels */
 927		frlog = 3;
 928	}
 929	if (is_playback) {
 930		frlog += (rme96->wcreg & RME96_WCR_MODE24) ? 2 : 1;
 931		rme96->playback_frlog = frlog;
 932	} else {
 933		frlog += (rme96->wcreg & RME96_WCR_MODE24_2) ? 2 : 1;
 934		rme96->capture_frlog = frlog;
 935	}
 936}
 937
 938static int
 939snd_rme96_playback_setformat(struct rme96 *rme96, snd_pcm_format_t format)
 940{
 941	switch (format) {
 942	case SNDRV_PCM_FORMAT_S16_LE:
 943		rme96->wcreg &= ~RME96_WCR_MODE24;
 944		break;
 945	case SNDRV_PCM_FORMAT_S32_LE:
 946		rme96->wcreg |= RME96_WCR_MODE24;
 947		break;
 948	default:
 949		return -EINVAL;
 950	}
 951	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
 952	return 0;
 953}
 954
 955static int
 956snd_rme96_capture_setformat(struct rme96 *rme96, snd_pcm_format_t format)
 957{
 958	switch (format) {
 959	case SNDRV_PCM_FORMAT_S16_LE:
 960		rme96->wcreg &= ~RME96_WCR_MODE24_2;
 961		break;
 962	case SNDRV_PCM_FORMAT_S32_LE:
 963		rme96->wcreg |= RME96_WCR_MODE24_2;
 964		break;
 965	default:
 966		return -EINVAL;
 967	}
 968	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
 969	return 0;
 970}
 971
 972static void
 973snd_rme96_set_period_properties(struct rme96 *rme96,
 974				size_t period_bytes)
 975{
 976	switch (period_bytes) {
 977	case RME96_LARGE_BLOCK_SIZE:
 978		rme96->wcreg &= ~RME96_WCR_ISEL;
 979		break;
 980	case RME96_SMALL_BLOCK_SIZE:
 981		rme96->wcreg |= RME96_WCR_ISEL;
 982		break;
 983	default:
 984		snd_BUG();
 985		break;
 986	}
 987	rme96->wcreg &= ~RME96_WCR_IDIS;
 988	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
 989}
 990
 991static int
 992snd_rme96_playback_hw_params(struct snd_pcm_substream *substream,
 993			     struct snd_pcm_hw_params *params)
 994{
 995	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
 996	struct snd_pcm_runtime *runtime = substream->runtime;
 997	int err, rate, dummy;
 998	bool apply_dac_volume = false;
 999
1000	runtime->dma_area = (void __force *)(rme96->iobase +
1001					     RME96_IO_PLAY_BUFFER);
1002	runtime->dma_addr = rme96->port + RME96_IO_PLAY_BUFFER;
1003	runtime->dma_bytes = RME96_BUFFER_SIZE;
1004
1005	spin_lock_irq(&rme96->lock);
1006	if (!(rme96->wcreg & RME96_WCR_MASTER) &&
1007            snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
1008	    (rate = snd_rme96_capture_getrate(rme96, &dummy)) > 0)
1009	{
1010                /* slave clock */
1011                if ((int)params_rate(params) != rate) {
1012			err = -EIO;
1013			goto error;
1014		}
1015	} else {
1016		err = snd_rme96_playback_setrate(rme96, params_rate(params));
1017		if (err < 0)
1018			goto error;
1019		apply_dac_volume = err > 0; /* need to restore volume later? */
1020	}
1021
1022	err = snd_rme96_playback_setformat(rme96, params_format(params));
1023	if (err < 0)
1024		goto error;
1025	snd_rme96_setframelog(rme96, params_channels(params), 1);
1026	if (rme96->capture_periodsize != 0) {
1027		if (params_period_size(params) << rme96->playback_frlog !=
1028		    rme96->capture_periodsize)
1029		{
1030			err = -EBUSY;
1031			goto error;
1032		}
1033	}
1034	rme96->playback_periodsize =
1035		params_period_size(params) << rme96->playback_frlog;
1036	snd_rme96_set_period_properties(rme96, rme96->playback_periodsize);
1037	/* S/PDIF setup */
1038	if ((rme96->wcreg & RME96_WCR_ADAT) == 0) {
1039		rme96->wcreg &= ~(RME96_WCR_PRO | RME96_WCR_DOLBY | RME96_WCR_EMP);
1040		writel(rme96->wcreg |= rme96->wcreg_spdif_stream, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1041	}
1042
1043	err = 0;
1044 error:
1045	spin_unlock_irq(&rme96->lock);
1046	if (apply_dac_volume) {
1047		usleep_range(3000, 10000);
1048		snd_rme96_apply_dac_volume(rme96);
1049	}
1050
1051	return err;
1052}
1053
1054static int
1055snd_rme96_capture_hw_params(struct snd_pcm_substream *substream,
1056			    struct snd_pcm_hw_params *params)
1057{
1058	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1059	struct snd_pcm_runtime *runtime = substream->runtime;
1060	int err, isadat, rate;
1061	
1062	runtime->dma_area = (void __force *)(rme96->iobase +
1063					     RME96_IO_REC_BUFFER);
1064	runtime->dma_addr = rme96->port + RME96_IO_REC_BUFFER;
1065	runtime->dma_bytes = RME96_BUFFER_SIZE;
1066
1067	spin_lock_irq(&rme96->lock);
1068	if ((err = snd_rme96_capture_setformat(rme96, params_format(params))) < 0) {
1069		spin_unlock_irq(&rme96->lock);
1070		return err;
1071	}
1072	if (snd_rme96_getinputtype(rme96) == RME96_INPUT_ANALOG) {
1073		if ((err = snd_rme96_capture_analog_setrate(rme96,
1074							    params_rate(params))) < 0)
1075		{
1076			spin_unlock_irq(&rme96->lock);
1077			return err;
1078		}
1079	} else if ((rate = snd_rme96_capture_getrate(rme96, &isadat)) > 0) {
1080                if ((int)params_rate(params) != rate) {
1081			spin_unlock_irq(&rme96->lock);
1082			return -EIO;                    
1083                }
1084                if ((isadat && runtime->hw.channels_min == 2) ||
1085                    (!isadat && runtime->hw.channels_min == 8))
1086                {
1087			spin_unlock_irq(&rme96->lock);
1088			return -EIO;
1089                }
1090        }
1091	snd_rme96_setframelog(rme96, params_channels(params), 0);
1092	if (rme96->playback_periodsize != 0) {
1093		if (params_period_size(params) << rme96->capture_frlog !=
1094		    rme96->playback_periodsize)
1095		{
1096			spin_unlock_irq(&rme96->lock);
1097			return -EBUSY;
1098		}
1099	}
1100	rme96->capture_periodsize =
1101		params_period_size(params) << rme96->capture_frlog;
1102	snd_rme96_set_period_properties(rme96, rme96->capture_periodsize);
1103	spin_unlock_irq(&rme96->lock);
1104
1105	return 0;
1106}
1107
1108static void
1109snd_rme96_trigger(struct rme96 *rme96,
1110		  int op)
1111{
1112	if (op & RME96_TB_RESET_PLAYPOS)
1113		writel(0, rme96->iobase + RME96_IO_RESET_PLAY_POS);
1114	if (op & RME96_TB_RESET_CAPTUREPOS)
1115		writel(0, rme96->iobase + RME96_IO_RESET_REC_POS);
1116	if (op & RME96_TB_CLEAR_PLAYBACK_IRQ) {
1117		rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
1118		if (rme96->rcreg & RME96_RCR_IRQ)
1119			writel(0, rme96->iobase + RME96_IO_CONFIRM_PLAY_IRQ);
1120	}
1121	if (op & RME96_TB_CLEAR_CAPTURE_IRQ) {
1122		rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
1123		if (rme96->rcreg & RME96_RCR_IRQ_2)
1124			writel(0, rme96->iobase + RME96_IO_CONFIRM_REC_IRQ);
1125	}
1126	if (op & RME96_TB_START_PLAYBACK)
1127		rme96->wcreg |= RME96_WCR_START;
1128	if (op & RME96_TB_STOP_PLAYBACK)
1129		rme96->wcreg &= ~RME96_WCR_START;
1130	if (op & RME96_TB_START_CAPTURE)
1131		rme96->wcreg |= RME96_WCR_START_2;
1132	if (op & RME96_TB_STOP_CAPTURE)
1133		rme96->wcreg &= ~RME96_WCR_START_2;
1134	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1135}
1136
1137
1138
1139static irqreturn_t
1140snd_rme96_interrupt(int irq,
1141		    void *dev_id)
1142{
1143	struct rme96 *rme96 = (struct rme96 *)dev_id;
1144
1145	rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
1146	/* fastpath out, to ease interrupt sharing */
1147	if (!((rme96->rcreg & RME96_RCR_IRQ) ||
1148	      (rme96->rcreg & RME96_RCR_IRQ_2)))
1149	{
1150		return IRQ_NONE;
1151	}
1152	
1153	if (rme96->rcreg & RME96_RCR_IRQ) {
1154		/* playback */
1155                snd_pcm_period_elapsed(rme96->playback_substream);
1156		writel(0, rme96->iobase + RME96_IO_CONFIRM_PLAY_IRQ);
1157	}
1158	if (rme96->rcreg & RME96_RCR_IRQ_2) {
1159		/* capture */
1160		snd_pcm_period_elapsed(rme96->capture_substream);		
1161		writel(0, rme96->iobase + RME96_IO_CONFIRM_REC_IRQ);
1162	}
1163	return IRQ_HANDLED;
1164}
1165
1166static const unsigned int period_bytes[] = { RME96_SMALL_BLOCK_SIZE, RME96_LARGE_BLOCK_SIZE };
1167
1168static const struct snd_pcm_hw_constraint_list hw_constraints_period_bytes = {
1169	.count = ARRAY_SIZE(period_bytes),
1170	.list = period_bytes,
1171	.mask = 0
1172};
1173
1174static void
1175rme96_set_buffer_size_constraint(struct rme96 *rme96,
1176				 struct snd_pcm_runtime *runtime)
1177{
1178	unsigned int size;
1179
1180	snd_pcm_hw_constraint_single(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
1181				     RME96_BUFFER_SIZE);
1182	if ((size = rme96->playback_periodsize) != 0 ||
1183	    (size = rme96->capture_periodsize) != 0)
1184		snd_pcm_hw_constraint_single(runtime,
1185					     SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
1186					     size);
1187	else
1188		snd_pcm_hw_constraint_list(runtime, 0,
1189					   SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
1190					   &hw_constraints_period_bytes);
1191}
1192
1193static int
1194snd_rme96_playback_spdif_open(struct snd_pcm_substream *substream)
1195{
1196        int rate, dummy;
1197	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1198	struct snd_pcm_runtime *runtime = substream->runtime;
1199
1200	snd_pcm_set_sync(substream);
1201	spin_lock_irq(&rme96->lock);	
1202	if (rme96->playback_substream) {
1203		spin_unlock_irq(&rme96->lock);
1204                return -EBUSY;
1205        }
1206	rme96->wcreg &= ~RME96_WCR_ADAT;
1207	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1208	rme96->playback_substream = substream;
1209	spin_unlock_irq(&rme96->lock);
1210
1211	runtime->hw = snd_rme96_playback_spdif_info;
1212	if (!(rme96->wcreg & RME96_WCR_MASTER) &&
1213            snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
1214	    (rate = snd_rme96_capture_getrate(rme96, &dummy)) > 0)
1215	{
1216                /* slave clock */
1217                runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
1218                runtime->hw.rate_min = rate;
1219                runtime->hw.rate_max = rate;
1220	}        
1221	rme96_set_buffer_size_constraint(rme96, runtime);
1222
1223	rme96->wcreg_spdif_stream = rme96->wcreg_spdif;
1224	rme96->spdif_ctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1225	snd_ctl_notify(rme96->card, SNDRV_CTL_EVENT_MASK_VALUE |
1226		       SNDRV_CTL_EVENT_MASK_INFO, &rme96->spdif_ctl->id);
1227	return 0;
1228}
1229
1230static int
1231snd_rme96_capture_spdif_open(struct snd_pcm_substream *substream)
1232{
1233        int isadat, rate;
1234	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1235	struct snd_pcm_runtime *runtime = substream->runtime;
1236
1237	snd_pcm_set_sync(substream);
1238	runtime->hw = snd_rme96_capture_spdif_info;
1239        if (snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
1240            (rate = snd_rme96_capture_getrate(rme96, &isadat)) > 0)
1241        {
1242                if (isadat) {
1243                        return -EIO;
1244                }
1245                runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
1246                runtime->hw.rate_min = rate;
1247                runtime->hw.rate_max = rate;
1248        }
1249        
1250	spin_lock_irq(&rme96->lock);
1251	if (rme96->capture_substream) {
1252		spin_unlock_irq(&rme96->lock);
1253                return -EBUSY;
1254        }
1255	rme96->capture_substream = substream;
1256	spin_unlock_irq(&rme96->lock);
1257	
1258	rme96_set_buffer_size_constraint(rme96, runtime);
1259	return 0;
1260}
1261
1262static int
1263snd_rme96_playback_adat_open(struct snd_pcm_substream *substream)
1264{
1265        int rate, dummy;
1266	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1267	struct snd_pcm_runtime *runtime = substream->runtime;        
1268	
1269	snd_pcm_set_sync(substream);
1270	spin_lock_irq(&rme96->lock);	
1271	if (rme96->playback_substream) {
1272		spin_unlock_irq(&rme96->lock);
1273                return -EBUSY;
1274        }
1275	rme96->wcreg |= RME96_WCR_ADAT;
1276	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1277	rme96->playback_substream = substream;
1278	spin_unlock_irq(&rme96->lock);
1279	
1280	runtime->hw = snd_rme96_playback_adat_info;
1281	if (!(rme96->wcreg & RME96_WCR_MASTER) &&
1282            snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
1283	    (rate = snd_rme96_capture_getrate(rme96, &dummy)) > 0)
1284	{
1285                /* slave clock */
1286                runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
1287                runtime->hw.rate_min = rate;
1288                runtime->hw.rate_max = rate;
1289	}        
1290	rme96_set_buffer_size_constraint(rme96, runtime);
1291	return 0;
1292}
1293
1294static int
1295snd_rme96_capture_adat_open(struct snd_pcm_substream *substream)
1296{
1297        int isadat, rate;
1298	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1299	struct snd_pcm_runtime *runtime = substream->runtime;
1300
1301	snd_pcm_set_sync(substream);
1302	runtime->hw = snd_rme96_capture_adat_info;
1303        if (snd_rme96_getinputtype(rme96) == RME96_INPUT_ANALOG) {
1304                /* makes no sense to use analog input. Note that analog
1305                   expension cards AEB4/8-I are RME96_INPUT_INTERNAL */
1306                return -EIO;
1307        }
1308        if ((rate = snd_rme96_capture_getrate(rme96, &isadat)) > 0) {
1309                if (!isadat) {
1310                        return -EIO;
1311                }
1312                runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
1313                runtime->hw.rate_min = rate;
1314                runtime->hw.rate_max = rate;
1315        }
1316        
1317	spin_lock_irq(&rme96->lock);	
1318	if (rme96->capture_substream) {
1319		spin_unlock_irq(&rme96->lock);
1320                return -EBUSY;
1321        }
1322	rme96->capture_substream = substream;
1323	spin_unlock_irq(&rme96->lock);
1324
1325	rme96_set_buffer_size_constraint(rme96, runtime);
1326	return 0;
1327}
1328
1329static int
1330snd_rme96_playback_close(struct snd_pcm_substream *substream)
1331{
1332	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1333	int spdif = 0;
1334
1335	spin_lock_irq(&rme96->lock);	
1336	if (RME96_ISPLAYING(rme96)) {
1337		snd_rme96_trigger(rme96, RME96_STOP_PLAYBACK);
1338	}
1339	rme96->playback_substream = NULL;
1340	rme96->playback_periodsize = 0;
1341	spdif = (rme96->wcreg & RME96_WCR_ADAT) == 0;
1342	spin_unlock_irq(&rme96->lock);
1343	if (spdif) {
1344		rme96->spdif_ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1345		snd_ctl_notify(rme96->card, SNDRV_CTL_EVENT_MASK_VALUE |
1346			       SNDRV_CTL_EVENT_MASK_INFO, &rme96->spdif_ctl->id);
1347	}
1348	return 0;
1349}
1350
1351static int
1352snd_rme96_capture_close(struct snd_pcm_substream *substream)
1353{
1354	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1355	
1356	spin_lock_irq(&rme96->lock);	
1357	if (RME96_ISRECORDING(rme96)) {
1358		snd_rme96_trigger(rme96, RME96_STOP_CAPTURE);
1359	}
1360	rme96->capture_substream = NULL;
1361	rme96->capture_periodsize = 0;
1362	spin_unlock_irq(&rme96->lock);
1363	return 0;
1364}
1365
1366static int
1367snd_rme96_playback_prepare(struct snd_pcm_substream *substream)
1368{
1369	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1370	
1371	spin_lock_irq(&rme96->lock);	
1372	if (RME96_ISPLAYING(rme96)) {
1373		snd_rme96_trigger(rme96, RME96_STOP_PLAYBACK);
1374	}
1375	writel(0, rme96->iobase + RME96_IO_RESET_PLAY_POS);
1376	spin_unlock_irq(&rme96->lock);
1377	return 0;
1378}
1379
1380static int
1381snd_rme96_capture_prepare(struct snd_pcm_substream *substream)
1382{
1383	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1384	
1385	spin_lock_irq(&rme96->lock);	
1386	if (RME96_ISRECORDING(rme96)) {
1387		snd_rme96_trigger(rme96, RME96_STOP_CAPTURE);
1388	}
1389	writel(0, rme96->iobase + RME96_IO_RESET_REC_POS);
1390	spin_unlock_irq(&rme96->lock);
1391	return 0;
1392}
1393
1394static int
1395snd_rme96_playback_trigger(struct snd_pcm_substream *substream, 
1396			   int cmd)
1397{
1398	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1399	struct snd_pcm_substream *s;
1400	bool sync;
1401
1402	snd_pcm_group_for_each_entry(s, substream) {
1403		if (snd_pcm_substream_chip(s) == rme96)
1404			snd_pcm_trigger_done(s, substream);
1405	}
1406
1407	sync = (rme96->playback_substream && rme96->capture_substream) &&
1408	       (rme96->playback_substream->group ==
1409		rme96->capture_substream->group);
1410
1411	switch (cmd) {
1412	case SNDRV_PCM_TRIGGER_START:
1413		if (!RME96_ISPLAYING(rme96)) {
1414			if (substream != rme96->playback_substream)
1415				return -EBUSY;
1416			snd_rme96_trigger(rme96, sync ? RME96_START_BOTH
1417						 : RME96_START_PLAYBACK);
1418		}
1419		break;
1420
1421	case SNDRV_PCM_TRIGGER_SUSPEND:
1422	case SNDRV_PCM_TRIGGER_STOP:
1423		if (RME96_ISPLAYING(rme96)) {
1424			if (substream != rme96->playback_substream)
1425				return -EBUSY;
1426			snd_rme96_trigger(rme96, sync ? RME96_STOP_BOTH
1427						 :  RME96_STOP_PLAYBACK);
1428		}
1429		break;
1430
1431	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1432		if (RME96_ISPLAYING(rme96))
1433			snd_rme96_trigger(rme96, sync ? RME96_STOP_BOTH
1434						 : RME96_STOP_PLAYBACK);
1435		break;
1436
1437	case SNDRV_PCM_TRIGGER_RESUME:
1438	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1439		if (!RME96_ISPLAYING(rme96))
1440			snd_rme96_trigger(rme96, sync ? RME96_RESUME_BOTH
1441						 : RME96_RESUME_PLAYBACK);
1442		break;
1443
1444	default:
1445		return -EINVAL;
1446	}
1447
1448	return 0;
1449}
1450
1451static int
1452snd_rme96_capture_trigger(struct snd_pcm_substream *substream, 
1453			  int cmd)
1454{
1455	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1456	struct snd_pcm_substream *s;
1457	bool sync;
1458
1459	snd_pcm_group_for_each_entry(s, substream) {
1460		if (snd_pcm_substream_chip(s) == rme96)
1461			snd_pcm_trigger_done(s, substream);
1462	}
1463
1464	sync = (rme96->playback_substream && rme96->capture_substream) &&
1465	       (rme96->playback_substream->group ==
1466		rme96->capture_substream->group);
1467
1468	switch (cmd) {
1469	case SNDRV_PCM_TRIGGER_START:
1470		if (!RME96_ISRECORDING(rme96)) {
1471			if (substream != rme96->capture_substream)
1472				return -EBUSY;
1473			snd_rme96_trigger(rme96, sync ? RME96_START_BOTH
1474						 : RME96_START_CAPTURE);
1475		}
1476		break;
1477
1478	case SNDRV_PCM_TRIGGER_SUSPEND:
1479	case SNDRV_PCM_TRIGGER_STOP:
1480		if (RME96_ISRECORDING(rme96)) {
1481			if (substream != rme96->capture_substream)
1482				return -EBUSY;
1483			snd_rme96_trigger(rme96, sync ? RME96_STOP_BOTH
1484						 : RME96_STOP_CAPTURE);
1485		}
1486		break;
1487
1488	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1489		if (RME96_ISRECORDING(rme96))
1490			snd_rme96_trigger(rme96, sync ? RME96_STOP_BOTH
1491						 : RME96_STOP_CAPTURE);
1492		break;
1493
1494	case SNDRV_PCM_TRIGGER_RESUME:
1495	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1496		if (!RME96_ISRECORDING(rme96))
1497			snd_rme96_trigger(rme96, sync ? RME96_RESUME_BOTH
1498						 : RME96_RESUME_CAPTURE);
1499		break;
1500
1501	default:
1502		return -EINVAL;
1503	}
1504
1505	return 0;
1506}
1507
1508static snd_pcm_uframes_t
1509snd_rme96_playback_pointer(struct snd_pcm_substream *substream)
1510{
1511	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1512	return snd_rme96_playback_ptr(rme96);
1513}
1514
1515static snd_pcm_uframes_t
1516snd_rme96_capture_pointer(struct snd_pcm_substream *substream)
1517{
1518	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1519	return snd_rme96_capture_ptr(rme96);
1520}
1521
1522static const struct snd_pcm_ops snd_rme96_playback_spdif_ops = {
1523	.open =		snd_rme96_playback_spdif_open,
1524	.close =	snd_rme96_playback_close,
1525	.ioctl =	snd_pcm_lib_ioctl,
1526	.hw_params =	snd_rme96_playback_hw_params,
1527	.prepare =	snd_rme96_playback_prepare,
1528	.trigger =	snd_rme96_playback_trigger,
1529	.pointer =	snd_rme96_playback_pointer,
1530	.copy_user =	snd_rme96_playback_copy,
1531	.copy_kernel =	snd_rme96_playback_copy_kernel,
1532	.fill_silence =	snd_rme96_playback_silence,
1533	.mmap =		snd_pcm_lib_mmap_iomem,
1534};
1535
1536static const struct snd_pcm_ops snd_rme96_capture_spdif_ops = {
1537	.open =		snd_rme96_capture_spdif_open,
1538	.close =	snd_rme96_capture_close,
1539	.ioctl =	snd_pcm_lib_ioctl,
1540	.hw_params =	snd_rme96_capture_hw_params,
1541	.prepare =	snd_rme96_capture_prepare,
1542	.trigger =	snd_rme96_capture_trigger,
1543	.pointer =	snd_rme96_capture_pointer,
1544	.copy_user =	snd_rme96_capture_copy,
1545	.copy_kernel =	snd_rme96_capture_copy_kernel,
1546	.mmap =		snd_pcm_lib_mmap_iomem,
1547};
1548
1549static const struct snd_pcm_ops snd_rme96_playback_adat_ops = {
1550	.open =		snd_rme96_playback_adat_open,
1551	.close =	snd_rme96_playback_close,
1552	.ioctl =	snd_pcm_lib_ioctl,
1553	.hw_params =	snd_rme96_playback_hw_params,
1554	.prepare =	snd_rme96_playback_prepare,
1555	.trigger =	snd_rme96_playback_trigger,
1556	.pointer =	snd_rme96_playback_pointer,
1557	.copy_user =	snd_rme96_playback_copy,
1558	.copy_kernel =	snd_rme96_playback_copy_kernel,
1559	.fill_silence =	snd_rme96_playback_silence,
1560	.mmap =		snd_pcm_lib_mmap_iomem,
1561};
1562
1563static const struct snd_pcm_ops snd_rme96_capture_adat_ops = {
1564	.open =		snd_rme96_capture_adat_open,
1565	.close =	snd_rme96_capture_close,
1566	.ioctl =	snd_pcm_lib_ioctl,
1567	.hw_params =	snd_rme96_capture_hw_params,
1568	.prepare =	snd_rme96_capture_prepare,
1569	.trigger =	snd_rme96_capture_trigger,
1570	.pointer =	snd_rme96_capture_pointer,
1571	.copy_user =	snd_rme96_capture_copy,
1572	.copy_kernel =	snd_rme96_capture_copy_kernel,
1573	.mmap =		snd_pcm_lib_mmap_iomem,
1574};
1575
1576static void
1577snd_rme96_free(void *private_data)
1578{
1579	struct rme96 *rme96 = (struct rme96 *)private_data;
1580
1581	if (!rme96)
1582	        return;
1583
1584	if (rme96->irq >= 0) {
1585		snd_rme96_trigger(rme96, RME96_STOP_BOTH);
1586		rme96->areg &= ~RME96_AR_DAC_EN;
1587		writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
1588		free_irq(rme96->irq, (void *)rme96);
1589		rme96->irq = -1;
1590	}
1591	if (rme96->iobase) {
1592		iounmap(rme96->iobase);
1593		rme96->iobase = NULL;
1594	}
1595	if (rme96->port) {
1596		pci_release_regions(rme96->pci);
1597		rme96->port = 0;
1598	}
1599#ifdef CONFIG_PM_SLEEP
1600	vfree(rme96->playback_suspend_buffer);
1601	vfree(rme96->capture_suspend_buffer);
1602#endif
1603	pci_disable_device(rme96->pci);
1604}
1605
1606static void
1607snd_rme96_free_spdif_pcm(struct snd_pcm *pcm)
1608{
1609	struct rme96 *rme96 = pcm->private_data;
1610	rme96->spdif_pcm = NULL;
1611}
1612
1613static void
1614snd_rme96_free_adat_pcm(struct snd_pcm *pcm)
1615{
1616	struct rme96 *rme96 = pcm->private_data;
1617	rme96->adat_pcm = NULL;
1618}
1619
1620static int
1621snd_rme96_create(struct rme96 *rme96)
1622{
1623	struct pci_dev *pci = rme96->pci;
1624	int err;
1625
1626	rme96->irq = -1;
1627	spin_lock_init(&rme96->lock);
1628
1629	if ((err = pci_enable_device(pci)) < 0)
1630		return err;
1631
1632	if ((err = pci_request_regions(pci, "RME96")) < 0)
1633		return err;
1634	rme96->port = pci_resource_start(rme96->pci, 0);
1635
1636	rme96->iobase = ioremap_nocache(rme96->port, RME96_IO_SIZE);
1637	if (!rme96->iobase) {
1638		dev_err(rme96->card->dev,
1639			"unable to remap memory region 0x%lx-0x%lx\n",
1640			rme96->port, rme96->port + RME96_IO_SIZE - 1);
1641		return -ENOMEM;
1642	}
1643
1644	if (request_irq(pci->irq, snd_rme96_interrupt, IRQF_SHARED,
1645			KBUILD_MODNAME, rme96)) {
1646		dev_err(rme96->card->dev, "unable to grab IRQ %d\n", pci->irq);
1647		return -EBUSY;
1648	}
1649	rme96->irq = pci->irq;
 
1650
1651	/* read the card's revision number */
1652	pci_read_config_byte(pci, 8, &rme96->rev);	
1653	
1654	/* set up ALSA pcm device for S/PDIF */
1655	if ((err = snd_pcm_new(rme96->card, "Digi96 IEC958", 0,
1656			       1, 1, &rme96->spdif_pcm)) < 0)
1657	{
1658		return err;
1659	}
1660	rme96->spdif_pcm->private_data = rme96;
1661	rme96->spdif_pcm->private_free = snd_rme96_free_spdif_pcm;
1662	strcpy(rme96->spdif_pcm->name, "Digi96 IEC958");
1663	snd_pcm_set_ops(rme96->spdif_pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_rme96_playback_spdif_ops);
1664	snd_pcm_set_ops(rme96->spdif_pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_rme96_capture_spdif_ops);
1665
1666	rme96->spdif_pcm->info_flags = 0;
1667
1668	/* set up ALSA pcm device for ADAT */
1669	if (pci->device == PCI_DEVICE_ID_RME_DIGI96) {
1670		/* ADAT is not available on the base model */
1671		rme96->adat_pcm = NULL;
1672	} else {
1673		if ((err = snd_pcm_new(rme96->card, "Digi96 ADAT", 1,
1674				       1, 1, &rme96->adat_pcm)) < 0)
1675		{
1676			return err;
1677		}		
1678		rme96->adat_pcm->private_data = rme96;
1679		rme96->adat_pcm->private_free = snd_rme96_free_adat_pcm;
1680		strcpy(rme96->adat_pcm->name, "Digi96 ADAT");
1681		snd_pcm_set_ops(rme96->adat_pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_rme96_playback_adat_ops);
1682		snd_pcm_set_ops(rme96->adat_pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_rme96_capture_adat_ops);
1683		
1684		rme96->adat_pcm->info_flags = 0;
1685	}
1686
1687	rme96->playback_periodsize = 0;
1688	rme96->capture_periodsize = 0;
1689	
1690	/* make sure playback/capture is stopped, if by some reason active */
1691	snd_rme96_trigger(rme96, RME96_STOP_BOTH);
1692	
1693	/* set default values in registers */
1694	rme96->wcreg =
1695		RME96_WCR_FREQ_1 | /* set 44.1 kHz playback */
1696		RME96_WCR_SEL |    /* normal playback */
1697		RME96_WCR_MASTER | /* set to master clock mode */
1698		RME96_WCR_INP_0;   /* set coaxial input */
1699
1700	rme96->areg = RME96_AR_FREQPAD_1; /* set 44.1 kHz analog capture */
1701
1702	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1703	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
1704	
1705	/* reset the ADC */
1706	writel(rme96->areg | RME96_AR_PD2,
1707	       rme96->iobase + RME96_IO_ADDITIONAL_REG);
1708	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);	
1709
1710	/* reset and enable the DAC (order is important). */
1711	snd_rme96_reset_dac(rme96);
1712	rme96->areg |= RME96_AR_DAC_EN;
1713	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
1714
1715	/* reset playback and record buffer pointers */
1716	writel(0, rme96->iobase + RME96_IO_RESET_PLAY_POS);
1717	writel(0, rme96->iobase + RME96_IO_RESET_REC_POS);
1718
1719	/* reset volume */
1720	rme96->vol[0] = rme96->vol[1] = 0;
1721	if (RME96_HAS_ANALOG_OUT(rme96)) {
1722		snd_rme96_apply_dac_volume(rme96);
1723	}
1724	
1725	/* init switch interface */
1726	if ((err = snd_rme96_create_switches(rme96->card, rme96)) < 0) {
1727		return err;
1728	}
1729
1730        /* init proc interface */
1731	snd_rme96_proc_init(rme96);
1732	
1733	return 0;
1734}
1735
1736/*
1737 * proc interface
1738 */
1739
1740static void 
1741snd_rme96_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
1742{
1743	int n;
1744	struct rme96 *rme96 = entry->private_data;
1745	
1746	rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
1747
1748	snd_iprintf(buffer, rme96->card->longname);
1749	snd_iprintf(buffer, " (index #%d)\n", rme96->card->number + 1);
1750
1751	snd_iprintf(buffer, "\nGeneral settings\n");
1752	if (rme96->wcreg & RME96_WCR_IDIS) {
1753		snd_iprintf(buffer, "  period size: N/A (interrupts "
1754			    "disabled)\n");
1755	} else if (rme96->wcreg & RME96_WCR_ISEL) {
1756		snd_iprintf(buffer, "  period size: 2048 bytes\n");
1757	} else {
1758		snd_iprintf(buffer, "  period size: 8192 bytes\n");
1759	}	
1760	snd_iprintf(buffer, "\nInput settings\n");
1761	switch (snd_rme96_getinputtype(rme96)) {
1762	case RME96_INPUT_OPTICAL:
1763		snd_iprintf(buffer, "  input: optical");
1764		break;
1765	case RME96_INPUT_COAXIAL:
1766		snd_iprintf(buffer, "  input: coaxial");
1767		break;
1768	case RME96_INPUT_INTERNAL:
1769		snd_iprintf(buffer, "  input: internal");
1770		break;
1771	case RME96_INPUT_XLR:
1772		snd_iprintf(buffer, "  input: XLR");
1773		break;
1774	case RME96_INPUT_ANALOG:
1775		snd_iprintf(buffer, "  input: analog");
1776		break;
1777	}
1778	if (snd_rme96_capture_getrate(rme96, &n) < 0) {
1779		snd_iprintf(buffer, "\n  sample rate: no valid signal\n");
1780	} else {
1781		if (n) {
1782			snd_iprintf(buffer, " (8 channels)\n");
1783		} else {
1784			snd_iprintf(buffer, " (2 channels)\n");
1785		}
1786		snd_iprintf(buffer, "  sample rate: %d Hz\n",
1787			    snd_rme96_capture_getrate(rme96, &n));
1788	}
1789	if (rme96->wcreg & RME96_WCR_MODE24_2) {
1790		snd_iprintf(buffer, "  sample format: 24 bit\n");
1791	} else {
1792		snd_iprintf(buffer, "  sample format: 16 bit\n");
1793	}
1794	
1795	snd_iprintf(buffer, "\nOutput settings\n");
1796	if (rme96->wcreg & RME96_WCR_SEL) {
1797		snd_iprintf(buffer, "  output signal: normal playback\n");
1798	} else {
1799		snd_iprintf(buffer, "  output signal: same as input\n");
1800	}
1801	snd_iprintf(buffer, "  sample rate: %d Hz\n",
1802		    snd_rme96_playback_getrate(rme96));
1803	if (rme96->wcreg & RME96_WCR_MODE24) {
1804		snd_iprintf(buffer, "  sample format: 24 bit\n");
1805	} else {
1806		snd_iprintf(buffer, "  sample format: 16 bit\n");
1807	}
1808	if (rme96->areg & RME96_AR_WSEL) {
1809		snd_iprintf(buffer, "  sample clock source: word clock\n");
1810	} else if (rme96->wcreg & RME96_WCR_MASTER) {
1811		snd_iprintf(buffer, "  sample clock source: internal\n");
1812	} else if (snd_rme96_getinputtype(rme96) == RME96_INPUT_ANALOG) {
1813		snd_iprintf(buffer, "  sample clock source: autosync (internal anyway due to analog input setting)\n");
1814	} else if (snd_rme96_capture_getrate(rme96, &n) < 0) {
1815		snd_iprintf(buffer, "  sample clock source: autosync (internal anyway due to no valid signal)\n");
1816	} else {
1817		snd_iprintf(buffer, "  sample clock source: autosync\n");
1818	}
1819	if (rme96->wcreg & RME96_WCR_PRO) {
1820		snd_iprintf(buffer, "  format: AES/EBU (professional)\n");
1821	} else {
1822		snd_iprintf(buffer, "  format: IEC958 (consumer)\n");
1823	}
1824	if (rme96->wcreg & RME96_WCR_EMP) {
1825		snd_iprintf(buffer, "  emphasis: on\n");
1826	} else {
1827		snd_iprintf(buffer, "  emphasis: off\n");
1828	}
1829	if (rme96->wcreg & RME96_WCR_DOLBY) {
1830		snd_iprintf(buffer, "  non-audio (dolby): on\n");
1831	} else {
1832		snd_iprintf(buffer, "  non-audio (dolby): off\n");
1833	}
1834	if (RME96_HAS_ANALOG_IN(rme96)) {
1835		snd_iprintf(buffer, "\nAnalog output settings\n");
1836		switch (snd_rme96_getmontracks(rme96)) {
1837		case RME96_MONITOR_TRACKS_1_2:
1838			snd_iprintf(buffer, "  monitored ADAT tracks: 1+2\n");
1839			break;
1840		case RME96_MONITOR_TRACKS_3_4:
1841			snd_iprintf(buffer, "  monitored ADAT tracks: 3+4\n");
1842			break;
1843		case RME96_MONITOR_TRACKS_5_6:
1844			snd_iprintf(buffer, "  monitored ADAT tracks: 5+6\n");
1845			break;
1846		case RME96_MONITOR_TRACKS_7_8:
1847			snd_iprintf(buffer, "  monitored ADAT tracks: 7+8\n");
1848			break;
1849		}
1850		switch (snd_rme96_getattenuation(rme96)) {
1851		case RME96_ATTENUATION_0:
1852			snd_iprintf(buffer, "  attenuation: 0 dB\n");
1853			break;
1854		case RME96_ATTENUATION_6:
1855			snd_iprintf(buffer, "  attenuation: -6 dB\n");
1856			break;
1857		case RME96_ATTENUATION_12:
1858			snd_iprintf(buffer, "  attenuation: -12 dB\n");
1859			break;
1860		case RME96_ATTENUATION_18:
1861			snd_iprintf(buffer, "  attenuation: -18 dB\n");
1862			break;
1863		}
1864		snd_iprintf(buffer, "  volume left: %u\n", rme96->vol[0]);
1865		snd_iprintf(buffer, "  volume right: %u\n", rme96->vol[1]);
1866	}
1867}
1868
1869static void snd_rme96_proc_init(struct rme96 *rme96)
1870{
1871	struct snd_info_entry *entry;
1872
1873	if (! snd_card_proc_new(rme96->card, "rme96", &entry))
1874		snd_info_set_text_ops(entry, rme96, snd_rme96_proc_read);
1875}
1876
1877/*
1878 * control interface
1879 */
1880
1881#define snd_rme96_info_loopback_control		snd_ctl_boolean_mono_info
1882
1883static int
1884snd_rme96_get_loopback_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1885{
1886	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1887	
1888	spin_lock_irq(&rme96->lock);
1889	ucontrol->value.integer.value[0] = rme96->wcreg & RME96_WCR_SEL ? 0 : 1;
1890	spin_unlock_irq(&rme96->lock);
1891	return 0;
1892}
1893static int
1894snd_rme96_put_loopback_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1895{
1896	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1897	unsigned int val;
1898	int change;
1899	
1900	val = ucontrol->value.integer.value[0] ? 0 : RME96_WCR_SEL;
1901	spin_lock_irq(&rme96->lock);
1902	val = (rme96->wcreg & ~RME96_WCR_SEL) | val;
1903	change = val != rme96->wcreg;
1904	rme96->wcreg = val;
1905	writel(val, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1906	spin_unlock_irq(&rme96->lock);
1907	return change;
1908}
1909
1910static int
1911snd_rme96_info_inputtype_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1912{
1913	static const char * const _texts[5] = {
1914		"Optical", "Coaxial", "Internal", "XLR", "Analog"
1915	};
1916	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1917	const char *texts[5] = {
1918		_texts[0], _texts[1], _texts[2], _texts[3], _texts[4]
1919	};
1920	int num_items;
1921	
1922	switch (rme96->pci->device) {
1923	case PCI_DEVICE_ID_RME_DIGI96:
1924	case PCI_DEVICE_ID_RME_DIGI96_8:
1925		num_items = 3;
1926		break;
1927	case PCI_DEVICE_ID_RME_DIGI96_8_PRO:
1928		num_items = 4;
1929		break;
1930	case PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST:
1931		if (rme96->rev > 4) {
1932			/* PST */
1933			num_items = 4;
1934			texts[3] = _texts[4]; /* Analog instead of XLR */
1935		} else {
1936			/* PAD */
1937			num_items = 5;
1938		}
1939		break;
1940	default:
1941		snd_BUG();
1942		return -EINVAL;
1943	}
1944	return snd_ctl_enum_info(uinfo, 1, num_items, texts);
1945}
1946static int
1947snd_rme96_get_inputtype_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1948{
1949	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1950	unsigned int items = 3;
1951	
1952	spin_lock_irq(&rme96->lock);
1953	ucontrol->value.enumerated.item[0] = snd_rme96_getinputtype(rme96);
1954	
1955	switch (rme96->pci->device) {
1956	case PCI_DEVICE_ID_RME_DIGI96:
1957	case PCI_DEVICE_ID_RME_DIGI96_8:
1958		items = 3;
1959		break;
1960	case PCI_DEVICE_ID_RME_DIGI96_8_PRO:
1961		items = 4;
1962		break;
1963	case PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST:
1964		if (rme96->rev > 4) {
1965			/* for handling PST case, (INPUT_ANALOG is moved to INPUT_XLR */
1966			if (ucontrol->value.enumerated.item[0] == RME96_INPUT_ANALOG) {
1967				ucontrol->value.enumerated.item[0] = RME96_INPUT_XLR;
1968			}
1969			items = 4;
1970		} else {
1971			items = 5;
1972		}
1973		break;
1974	default:
1975		snd_BUG();
1976		break;
1977	}
1978	if (ucontrol->value.enumerated.item[0] >= items) {
1979		ucontrol->value.enumerated.item[0] = items - 1;
1980	}
1981	
1982	spin_unlock_irq(&rme96->lock);
1983	return 0;
1984}
1985static int
1986snd_rme96_put_inputtype_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1987{
1988	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1989	unsigned int val;
1990	int change, items = 3;
1991	
1992	switch (rme96->pci->device) {
1993	case PCI_DEVICE_ID_RME_DIGI96:
1994	case PCI_DEVICE_ID_RME_DIGI96_8:
1995		items = 3;
1996		break;
1997	case PCI_DEVICE_ID_RME_DIGI96_8_PRO:
1998		items = 4;
1999		break;
2000	case PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST:
2001		if (rme96->rev > 4) {
2002			items = 4;
2003		} else {
2004			items = 5;
2005		}
2006		break;
2007	default:
2008		snd_BUG();
2009		break;
2010	}
2011	val = ucontrol->value.enumerated.item[0] % items;
2012	
2013	/* special case for PST */
2014	if (rme96->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST && rme96->rev > 4) {
2015		if (val == RME96_INPUT_XLR) {
2016			val = RME96_INPUT_ANALOG;
2017		}
2018	}
2019	
2020	spin_lock_irq(&rme96->lock);
2021	change = (int)val != snd_rme96_getinputtype(rme96);
2022	snd_rme96_setinputtype(rme96, val);
2023	spin_unlock_irq(&rme96->lock);
2024	return change;
2025}
2026
2027static int
2028snd_rme96_info_clockmode_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2029{
2030	static const char * const texts[3] = { "AutoSync", "Internal", "Word" };
2031	
2032	return snd_ctl_enum_info(uinfo, 1, 3, texts);
2033}
2034static int
2035snd_rme96_get_clockmode_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2036{
2037	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2038	
2039	spin_lock_irq(&rme96->lock);
2040	ucontrol->value.enumerated.item[0] = snd_rme96_getclockmode(rme96);
2041	spin_unlock_irq(&rme96->lock);
2042	return 0;
2043}
2044static int
2045snd_rme96_put_clockmode_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2046{
2047	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2048	unsigned int val;
2049	int change;
2050	
2051	val = ucontrol->value.enumerated.item[0] % 3;
2052	spin_lock_irq(&rme96->lock);
2053	change = (int)val != snd_rme96_getclockmode(rme96);
2054	snd_rme96_setclockmode(rme96, val);
2055	spin_unlock_irq(&rme96->lock);
2056	return change;
2057}
2058
2059static int
2060snd_rme96_info_attenuation_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2061{
2062	static const char * const texts[4] = {
2063		"0 dB", "-6 dB", "-12 dB", "-18 dB"
2064	};
2065	
2066	return snd_ctl_enum_info(uinfo, 1, 4, texts);
2067}
2068static int
2069snd_rme96_get_attenuation_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2070{
2071	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2072	
2073	spin_lock_irq(&rme96->lock);
2074	ucontrol->value.enumerated.item[0] = snd_rme96_getattenuation(rme96);
2075	spin_unlock_irq(&rme96->lock);
2076	return 0;
2077}
2078static int
2079snd_rme96_put_attenuation_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2080{
2081	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2082	unsigned int val;
2083	int change;
2084	
2085	val = ucontrol->value.enumerated.item[0] % 4;
2086	spin_lock_irq(&rme96->lock);
2087
2088	change = (int)val != snd_rme96_getattenuation(rme96);
2089	snd_rme96_setattenuation(rme96, val);
2090	spin_unlock_irq(&rme96->lock);
2091	return change;
2092}
2093
2094static int
2095snd_rme96_info_montracks_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2096{
2097	static const char * const texts[4] = { "1+2", "3+4", "5+6", "7+8" };
2098	
2099	return snd_ctl_enum_info(uinfo, 1, 4, texts);
2100}
2101static int
2102snd_rme96_get_montracks_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2103{
2104	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2105	
2106	spin_lock_irq(&rme96->lock);
2107	ucontrol->value.enumerated.item[0] = snd_rme96_getmontracks(rme96);
2108	spin_unlock_irq(&rme96->lock);
2109	return 0;
2110}
2111static int
2112snd_rme96_put_montracks_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2113{
2114	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2115	unsigned int val;
2116	int change;
2117	
2118	val = ucontrol->value.enumerated.item[0] % 4;
2119	spin_lock_irq(&rme96->lock);
2120	change = (int)val != snd_rme96_getmontracks(rme96);
2121	snd_rme96_setmontracks(rme96, val);
2122	spin_unlock_irq(&rme96->lock);
2123	return change;
2124}
2125
2126static u32 snd_rme96_convert_from_aes(struct snd_aes_iec958 *aes)
2127{
2128	u32 val = 0;
2129	val |= (aes->status[0] & IEC958_AES0_PROFESSIONAL) ? RME96_WCR_PRO : 0;
2130	val |= (aes->status[0] & IEC958_AES0_NONAUDIO) ? RME96_WCR_DOLBY : 0;
2131	if (val & RME96_WCR_PRO)
2132		val |= (aes->status[0] & IEC958_AES0_PRO_EMPHASIS_5015) ? RME96_WCR_EMP : 0;
2133	else
2134		val |= (aes->status[0] & IEC958_AES0_CON_EMPHASIS_5015) ? RME96_WCR_EMP : 0;
2135	return val;
2136}
2137
2138static void snd_rme96_convert_to_aes(struct snd_aes_iec958 *aes, u32 val)
2139{
2140	aes->status[0] = ((val & RME96_WCR_PRO) ? IEC958_AES0_PROFESSIONAL : 0) |
2141			 ((val & RME96_WCR_DOLBY) ? IEC958_AES0_NONAUDIO : 0);
2142	if (val & RME96_WCR_PRO)
2143		aes->status[0] |= (val & RME96_WCR_EMP) ? IEC958_AES0_PRO_EMPHASIS_5015 : 0;
2144	else
2145		aes->status[0] |= (val & RME96_WCR_EMP) ? IEC958_AES0_CON_EMPHASIS_5015 : 0;
2146}
2147
2148static int snd_rme96_control_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2149{
2150	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2151	uinfo->count = 1;
2152	return 0;
2153}
2154
2155static int snd_rme96_control_spdif_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2156{
2157	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2158	
2159	snd_rme96_convert_to_aes(&ucontrol->value.iec958, rme96->wcreg_spdif);
2160	return 0;
2161}
2162
2163static int snd_rme96_control_spdif_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2164{
2165	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2166	int change;
2167	u32 val;
2168	
2169	val = snd_rme96_convert_from_aes(&ucontrol->value.iec958);
2170	spin_lock_irq(&rme96->lock);
2171	change = val != rme96->wcreg_spdif;
2172	rme96->wcreg_spdif = val;
2173	spin_unlock_irq(&rme96->lock);
2174	return change;
2175}
2176
2177static int snd_rme96_control_spdif_stream_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2178{
2179	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2180	uinfo->count = 1;
2181	return 0;
2182}
2183
2184static int snd_rme96_control_spdif_stream_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2185{
2186	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2187	
2188	snd_rme96_convert_to_aes(&ucontrol->value.iec958, rme96->wcreg_spdif_stream);
2189	return 0;
2190}
2191
2192static int snd_rme96_control_spdif_stream_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2193{
2194	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2195	int change;
2196	u32 val;
2197	
2198	val = snd_rme96_convert_from_aes(&ucontrol->value.iec958);
2199	spin_lock_irq(&rme96->lock);
2200	change = val != rme96->wcreg_spdif_stream;
2201	rme96->wcreg_spdif_stream = val;
2202	rme96->wcreg &= ~(RME96_WCR_PRO | RME96_WCR_DOLBY | RME96_WCR_EMP);
2203	rme96->wcreg |= val;
2204	writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
2205	spin_unlock_irq(&rme96->lock);
2206	return change;
2207}
2208
2209static int snd_rme96_control_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2210{
2211	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2212	uinfo->count = 1;
2213	return 0;
2214}
2215
2216static int snd_rme96_control_spdif_mask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2217{
2218	ucontrol->value.iec958.status[0] = kcontrol->private_value;
2219	return 0;
2220}
2221
2222static int
2223snd_rme96_dac_volume_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2224{
2225	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2226	
2227        uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2228        uinfo->count = 2;
2229        uinfo->value.integer.min = 0;
2230	uinfo->value.integer.max = RME96_185X_MAX_OUT(rme96);
2231        return 0;
2232}
2233
2234static int
2235snd_rme96_dac_volume_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *u)
2236{
2237	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2238
2239	spin_lock_irq(&rme96->lock);
2240        u->value.integer.value[0] = rme96->vol[0];
2241        u->value.integer.value[1] = rme96->vol[1];
2242	spin_unlock_irq(&rme96->lock);
2243
2244        return 0;
2245}
2246
2247static int
2248snd_rme96_dac_volume_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *u)
2249{
2250	struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2251        int change = 0;
2252	unsigned int vol, maxvol;
2253
2254
2255	if (!RME96_HAS_ANALOG_OUT(rme96))
2256		return -EINVAL;
2257	maxvol = RME96_185X_MAX_OUT(rme96);
2258	spin_lock_irq(&rme96->lock);
2259	vol = u->value.integer.value[0];
2260	if (vol != rme96->vol[0] && vol <= maxvol) {
2261		rme96->vol[0] = vol;
2262		change = 1;
2263	}
2264	vol = u->value.integer.value[1];
2265	if (vol != rme96->vol[1] && vol <= maxvol) {
2266		rme96->vol[1] = vol;
2267		change = 1;
2268	}
2269	if (change)
2270		snd_rme96_apply_dac_volume(rme96);
2271	spin_unlock_irq(&rme96->lock);
2272
2273        return change;
2274}
2275
2276static struct snd_kcontrol_new snd_rme96_controls[] = {
2277{
2278	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
2279	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
2280	.info =		snd_rme96_control_spdif_info,
2281	.get =		snd_rme96_control_spdif_get,
2282	.put =		snd_rme96_control_spdif_put
2283},
2284{
2285	.access =	SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE,
2286	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
2287	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM),
2288	.info =		snd_rme96_control_spdif_stream_info,
2289	.get =		snd_rme96_control_spdif_stream_get,
2290	.put =		snd_rme96_control_spdif_stream_put
2291},
2292{
2293	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
2294	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
2295	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
2296	.info =		snd_rme96_control_spdif_mask_info,
2297	.get =		snd_rme96_control_spdif_mask_get,
2298	.private_value = IEC958_AES0_NONAUDIO |
2299			IEC958_AES0_PROFESSIONAL |
2300			IEC958_AES0_CON_EMPHASIS
2301},
2302{
2303	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
2304	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
2305	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
2306	.info =		snd_rme96_control_spdif_mask_info,
2307	.get =		snd_rme96_control_spdif_mask_get,
2308	.private_value = IEC958_AES0_NONAUDIO |
2309			IEC958_AES0_PROFESSIONAL |
2310			IEC958_AES0_PRO_EMPHASIS
2311},
2312{
2313        .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2314	.name =         "Input Connector",
2315	.info =         snd_rme96_info_inputtype_control, 
2316	.get =          snd_rme96_get_inputtype_control,
2317	.put =          snd_rme96_put_inputtype_control 
2318},
2319{
2320        .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2321	.name =         "Loopback Input",
2322	.info =         snd_rme96_info_loopback_control,
2323	.get =          snd_rme96_get_loopback_control,
2324	.put =          snd_rme96_put_loopback_control
2325},
2326{
2327        .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2328	.name =         "Sample Clock Source",
2329	.info =         snd_rme96_info_clockmode_control, 
2330	.get =          snd_rme96_get_clockmode_control,
2331	.put =          snd_rme96_put_clockmode_control
2332},
2333{
2334        .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2335	.name =         "Monitor Tracks",
2336	.info =         snd_rme96_info_montracks_control, 
2337	.get =          snd_rme96_get_montracks_control,
2338	.put =          snd_rme96_put_montracks_control
2339},
2340{
2341        .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2342	.name =         "Attenuation",
2343	.info =         snd_rme96_info_attenuation_control, 
2344	.get =          snd_rme96_get_attenuation_control,
2345	.put =          snd_rme96_put_attenuation_control
2346},
2347{
2348        .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2349	.name =         "DAC Playback Volume",
2350	.info =         snd_rme96_dac_volume_info,
2351	.get =          snd_rme96_dac_volume_get,
2352	.put =          snd_rme96_dac_volume_put
2353}
2354};
2355
2356static int
2357snd_rme96_create_switches(struct snd_card *card,
2358			  struct rme96 *rme96)
2359{
2360	int idx, err;
2361	struct snd_kcontrol *kctl;
2362
2363	for (idx = 0; idx < 7; idx++) {
2364		if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_rme96_controls[idx], rme96))) < 0)
2365			return err;
2366		if (idx == 1)	/* IEC958 (S/PDIF) Stream */
2367			rme96->spdif_ctl = kctl;
2368	}
2369
2370	if (RME96_HAS_ANALOG_OUT(rme96)) {
2371		for (idx = 7; idx < 10; idx++)
2372			if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_rme96_controls[idx], rme96))) < 0)
2373				return err;
2374	}
2375	
2376	return 0;
2377}
2378
2379/*
2380 * Card initialisation
2381 */
2382
2383#ifdef CONFIG_PM_SLEEP
2384
2385static int rme96_suspend(struct device *dev)
2386{
2387	struct snd_card *card = dev_get_drvdata(dev);
2388	struct rme96 *rme96 = card->private_data;
2389
2390	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2391	snd_pcm_suspend(rme96->playback_substream);
2392	snd_pcm_suspend(rme96->capture_substream);
2393
2394	/* save capture & playback pointers */
2395	rme96->playback_pointer = readl(rme96->iobase + RME96_IO_GET_PLAY_POS)
2396				  & RME96_RCR_AUDIO_ADDR_MASK;
2397	rme96->capture_pointer = readl(rme96->iobase + RME96_IO_GET_REC_POS)
2398				 & RME96_RCR_AUDIO_ADDR_MASK;
2399
2400	/* save playback and capture buffers */
2401	memcpy_fromio(rme96->playback_suspend_buffer,
2402		      rme96->iobase + RME96_IO_PLAY_BUFFER, RME96_BUFFER_SIZE);
2403	memcpy_fromio(rme96->capture_suspend_buffer,
2404		      rme96->iobase + RME96_IO_REC_BUFFER, RME96_BUFFER_SIZE);
2405
2406	/* disable the DAC  */
2407	rme96->areg &= ~RME96_AR_DAC_EN;
2408	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
2409	return 0;
2410}
2411
2412static int rme96_resume(struct device *dev)
2413{
2414	struct snd_card *card = dev_get_drvdata(dev);
2415	struct rme96 *rme96 = card->private_data;
2416
2417	/* reset playback and record buffer pointers */
2418	writel(0, rme96->iobase + RME96_IO_SET_PLAY_POS
2419		  + rme96->playback_pointer);
2420	writel(0, rme96->iobase + RME96_IO_SET_REC_POS
2421		  + rme96->capture_pointer);
2422
2423	/* restore playback and capture buffers */
2424	memcpy_toio(rme96->iobase + RME96_IO_PLAY_BUFFER,
2425		    rme96->playback_suspend_buffer, RME96_BUFFER_SIZE);
2426	memcpy_toio(rme96->iobase + RME96_IO_REC_BUFFER,
2427		    rme96->capture_suspend_buffer, RME96_BUFFER_SIZE);
2428
2429	/* reset the ADC */
2430	writel(rme96->areg | RME96_AR_PD2,
2431	       rme96->iobase + RME96_IO_ADDITIONAL_REG);
2432	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
2433
2434	/* reset and enable DAC, restore analog volume */
2435	snd_rme96_reset_dac(rme96);
2436	rme96->areg |= RME96_AR_DAC_EN;
2437	writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
2438	if (RME96_HAS_ANALOG_OUT(rme96)) {
2439		usleep_range(3000, 10000);
2440		snd_rme96_apply_dac_volume(rme96);
2441	}
2442
2443	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2444
2445	return 0;
2446}
2447
2448static SIMPLE_DEV_PM_OPS(rme96_pm, rme96_suspend, rme96_resume);
2449#define RME96_PM_OPS	&rme96_pm
2450#else
2451#define RME96_PM_OPS	NULL
2452#endif /* CONFIG_PM_SLEEP */
2453
2454static void snd_rme96_card_free(struct snd_card *card)
2455{
2456	snd_rme96_free(card->private_data);
2457}
2458
2459static int
2460snd_rme96_probe(struct pci_dev *pci,
2461		const struct pci_device_id *pci_id)
2462{
2463	static int dev;
2464	struct rme96 *rme96;
2465	struct snd_card *card;
2466	int err;
2467	u8 val;
2468
2469	if (dev >= SNDRV_CARDS) {
2470		return -ENODEV;
2471	}
2472	if (!enable[dev]) {
2473		dev++;
2474		return -ENOENT;
2475	}
2476	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
2477			   sizeof(struct rme96), &card);
2478	if (err < 0)
2479		return err;
2480	card->private_free = snd_rme96_card_free;
2481	rme96 = card->private_data;
2482	rme96->card = card;
2483	rme96->pci = pci;
2484	err = snd_rme96_create(rme96);
2485	if (err)
2486		goto free_card;
2487	
2488#ifdef CONFIG_PM_SLEEP
2489	rme96->playback_suspend_buffer = vmalloc(RME96_BUFFER_SIZE);
2490	if (!rme96->playback_suspend_buffer) {
2491		err = -ENOMEM;
2492		goto free_card;
2493	}
2494	rme96->capture_suspend_buffer = vmalloc(RME96_BUFFER_SIZE);
2495	if (!rme96->capture_suspend_buffer) {
2496		err = -ENOMEM;
2497		goto free_card;
2498	}
2499#endif
2500
2501	strcpy(card->driver, "Digi96");
2502	switch (rme96->pci->device) {
2503	case PCI_DEVICE_ID_RME_DIGI96:
2504		strcpy(card->shortname, "RME Digi96");
2505		break;
2506	case PCI_DEVICE_ID_RME_DIGI96_8:
2507		strcpy(card->shortname, "RME Digi96/8");
2508		break;
2509	case PCI_DEVICE_ID_RME_DIGI96_8_PRO:
2510		strcpy(card->shortname, "RME Digi96/8 PRO");
2511		break;
2512	case PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST:
2513		pci_read_config_byte(rme96->pci, 8, &val);
2514		if (val < 5) {
2515			strcpy(card->shortname, "RME Digi96/8 PAD");
2516		} else {
2517			strcpy(card->shortname, "RME Digi96/8 PST");
2518		}
2519		break;
2520	}
2521	sprintf(card->longname, "%s at 0x%lx, irq %d", card->shortname,
2522		rme96->port, rme96->irq);
2523	err = snd_card_register(card);
2524	if (err)
2525		goto free_card;
2526
2527	pci_set_drvdata(pci, card);
2528	dev++;
2529	return 0;
2530free_card:
2531	snd_card_free(card);
2532	return err;
2533}
2534
2535static void snd_rme96_remove(struct pci_dev *pci)
2536{
2537	snd_card_free(pci_get_drvdata(pci));
2538}
2539
2540static struct pci_driver rme96_driver = {
2541	.name = KBUILD_MODNAME,
2542	.id_table = snd_rme96_ids,
2543	.probe = snd_rme96_probe,
2544	.remove = snd_rme96_remove,
2545	.driver = {
2546		.pm = RME96_PM_OPS,
2547	},
2548};
2549
2550module_pci_driver(rme96_driver);