sound/pci/rme32.c

   1 /*
   2  *   ALSA driver for RME Digi32, Digi32/8 and Digi32 PRO audio interfaces
   3  *
   4  *      Copyright (c) 2002-2004 Martin Langer <martin-langer@gmx.de>,
   5  *                              Pilo Chambert <pilo.c@wanadoo.fr>
   6  *
   7  *      Thanks to :        Anders Torger <torger@ludd.luth.se>,
   8  *                         Henk Hesselink <henk@anda.nl>
   9  *                         for writing the digi96-driver
  10  *                         and RME for all informations.
  11  *
  12  *   This program is free software; you can redistribute it and/or modify
  13  *   it under the terms of the GNU General Public License as published by
  14  *   the Free Software Foundation; either version 2 of the License, or
  15  *   (at your option) any later version.
  16  *
  17  *   This program is distributed in the hope that it will be useful,
  18  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  *   GNU General Public License for more details.
  21  *
  22  *   You should have received a copy of the GNU General Public License
  23  *   along with this program; if not, write to the Free Software
  24  *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  25  *
  26  *
  27  * ****************************************************************************
  28  *
  29  * Note #1 "Sek'd models" ................................... martin 2002-12-07
  30  *
  31  * Identical soundcards by Sek'd were labeled:
  32  * RME Digi 32     = Sek'd Prodif 32
  33  * RME Digi 32 Pro = Sek'd Prodif 96
  34  * RME Digi 32/8   = Sek'd Prodif Gold
  35  *
  36  * ****************************************************************************
  37  *
  38  * Note #2 "full duplex mode" ............................... martin 2002-12-07
  39  *
  40  * Full duplex doesn't work. All cards (32, 32/8, 32Pro) are working identical
  41  * in this mode. Rec data and play data are using the same buffer therefore. At
  42  * first you have got the playing bits in the buffer and then (after playing
  43  * them) they were overwitten by the captured sound of the CS8412/14. Both
  44  * modes (play/record) are running harmonically hand in hand in the same buffer
  45  * and you have only one start bit plus one interrupt bit to control this
  46  * paired action.
  47  * This is opposite to the latter rme96 where playing and capturing is totally
  48  * separated and so their full duplex mode is supported by alsa (using two
  49  * start bits and two interrupts for two different buffers).
  50  * But due to the wrong sequence of playing and capturing ALSA shows no solved
  51  * full duplex support for the rme32 at the moment. That's bad, but I'm not
  52  * able to solve it. Are you motivated enough to solve this problem now? Your
  53  * patch would be welcome!
  54  *
  55  * ****************************************************************************
  56  *
  57  * "The story after the long seeking" -- tiwai
  58  *
  59  * Ok, the situation regarding the full duplex is now improved a bit.
  60  * In the fullduplex mode (given by the module parameter), the hardware buffer
  61  * is split to halves for read and write directions at the DMA pointer.
  62  * That is, the half above the current DMA pointer is used for write, and
  63  * the half below is used for read.  To mangle this strange behavior, an
  64  * software intermediate buffer is introduced.  This is, of course, not good
  65  * from the viewpoint of the data transfer efficiency.  However, this allows
  66  * you to use arbitrary buffer sizes, instead of the fixed I/O buffer size.
  67  *
  68  * ****************************************************************************
  69  */
  70
  71
  72 #include <linux/delay.h>
  73 #include <linux/gfp.h>
  74 #include <linux/init.h>
  75 #include <linux/interrupt.h>
  76 #include <linux/pci.h>
  77 #include <linux/module.h>
  78
  79 #include <sound/core.h>
  80 #include <sound/info.h>
  81 #include <sound/control.h>
  82 #include <sound/pcm.h>
  83 #include <sound/pcm_params.h>
  84 #include <sound/pcm-indirect.h>
  85 #include <sound/asoundef.h>
  86 #include <sound/initval.h>
  87
  88 #include <asm/io.h>
  89
  90 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  91 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  92 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;     /* Enable this card */
  93 static bool fullduplex[SNDRV_CARDS]; // = {[0 ... (SNDRV_CARDS - 1)] = 1};
  94
  95 module_param_array(index, int, NULL, 0444);
  96 MODULE_PARM_DESC(index, "Index value for RME Digi32 soundcard.");
  97 module_param_array(id, charp, NULL, 0444);
  98 MODULE_PARM_DESC(id, "ID string for RME Digi32 soundcard.");
  99 module_param_array(enable, bool, NULL, 0444);
 100 MODULE_PARM_DESC(enable, "Enable RME Digi32 soundcard.");
 101 module_param_array(fullduplex, bool, NULL, 0444);
 102 MODULE_PARM_DESC(fullduplex, "Support full-duplex mode.");
 103 MODULE_AUTHOR("Martin Langer <martin-langer@gmx.de>, Pilo Chambert <pilo.c@wanadoo.fr>");
 104 MODULE_DESCRIPTION("RME Digi32, Digi32/8, Digi32 PRO");
 105 MODULE_LICENSE("GPL");
 106 MODULE_SUPPORTED_DEVICE("{{RME,Digi32}," "{RME,Digi32/8}," "{RME,Digi32 PRO}}");
 107
 108 /* Defines for RME Digi32 series */
 109 #define RME32_SPDIF_NCHANNELS 2
 110
 111 /* Playback and capture buffer size */
 112 #define RME32_BUFFER_SIZE 0x20000
 113
 114 /* IO area size */
 115 #define RME32_IO_SIZE 0x30000
 116
 117 /* IO area offsets */
 118 #define RME32_IO_DATA_BUFFER        0x0
 119 #define RME32_IO_CONTROL_REGISTER   0x20000
 120 #define RME32_IO_GET_POS            0x20000
 121 #define RME32_IO_CONFIRM_ACTION_IRQ 0x20004
 122 #define RME32_IO_RESET_POS          0x20100
 123
 124 /* Write control register bits */
 125 #define RME32_WCR_START     (1 << 0)    /* startbit */
 126 #define RME32_WCR_MONO      (1 << 1)    /* 0=stereo, 1=mono
 127                                            Setting the whole card to mono
 128                                            doesn't seem to be very useful.
 129                                            A software-solution can handle
 130                                            full-duplex with one direction in
 131                                            stereo and the other way in mono.
 132                                            So, the hardware should work all
 133                                            the time in stereo! */
 134 #define RME32_WCR_MODE24    (1 << 2)    /* 0=16bit, 1=32bit */
 135 #define RME32_WCR_SEL       (1 << 3)    /* 0=input on output, 1=normal playback/capture */
 136 #define RME32_WCR_FREQ_0    (1 << 4)    /* frequency (play) */
 137 #define RME32_WCR_FREQ_1    (1 << 5)
 138 #define RME32_WCR_INP_0     (1 << 6)    /* input switch */
 139 #define RME32_WCR_INP_1     (1 << 7)
 140 #define RME32_WCR_RESET     (1 << 8)    /* Reset address */
 141 #define RME32_WCR_MUTE      (1 << 9)    /* digital mute for output */
 142 #define RME32_WCR_PRO       (1 << 10)   /* 1=professional, 0=consumer */
 143 #define RME32_WCR_DS_BM     (1 << 11)   /* 1=DoubleSpeed (only PRO-Version); 1=BlockMode (only Adat-Version) */
 144 #define RME32_WCR_ADAT      (1 << 12)   /* Adat Mode (only Adat-Version) */
 145 #define RME32_WCR_AUTOSYNC  (1 << 13)   /* AutoSync */
 146 #define RME32_WCR_PD        (1 << 14)   /* DAC Reset (only PRO-Version) */
 147 #define RME32_WCR_EMP       (1 << 15)   /* 1=Emphasis on (only PRO-Version) */
 148
 149 #define RME32_WCR_BITPOS_FREQ_0 4
 150 #define RME32_WCR_BITPOS_FREQ_1 5
 151 #define RME32_WCR_BITPOS_INP_0 6
 152 #define RME32_WCR_BITPOS_INP_1 7
 153
 154 /* Read control register bits */
 155 #define RME32_RCR_AUDIO_ADDR_MASK 0x1ffff
 156 #define RME32_RCR_LOCK      (1 << 23)   /* 1=locked, 0=not locked */
 157 #define RME32_RCR_ERF       (1 << 26)   /* 1=Error, 0=no Error */
 158 #define RME32_RCR_FREQ_0    (1 << 27)   /* CS841x frequency (record) */
 159 #define RME32_RCR_FREQ_1    (1 << 28)
 160 #define RME32_RCR_FREQ_2    (1 << 29)
 161 #define RME32_RCR_KMODE     (1 << 30)   /* card mode: 1=PLL, 0=quartz */
 162 #define RME32_RCR_IRQ       (1 << 31)   /* interrupt */
 163
 164 #define RME32_RCR_BITPOS_F0 27
 165 #define RME32_RCR_BITPOS_F1 28
 166 #define RME32_RCR_BITPOS_F2 29
 167
 168 /* Input types */
 169 #define RME32_INPUT_OPTICAL 0
 170 #define RME32_INPUT_COAXIAL 1
 171 #define RME32_INPUT_INTERNAL 2
 172 #define RME32_INPUT_XLR 3
 173
 174 /* Clock modes */
 175 #define RME32_CLOCKMODE_SLAVE 0
 176 #define RME32_CLOCKMODE_MASTER_32 1
 177 #define RME32_CLOCKMODE_MASTER_44 2
 178 #define RME32_CLOCKMODE_MASTER_48 3
 179
 180 /* Block sizes in bytes */
 181 #define RME32_BLOCK_SIZE 8192
 182
 183 /* Software intermediate buffer (max) size */
 184 #define RME32_MID_BUFFER_SIZE (1024*1024)
 185
 186 /* Hardware revisions */
 187 #define RME32_32_REVISION 192
 188 #define RME32_328_REVISION_OLD 100
 189 #define RME32_328_REVISION_NEW 101
 190 #define RME32_PRO_REVISION_WITH_8412 192
 191 #define RME32_PRO_REVISION_WITH_8414 150
 192
 193
 194 struct rme32 {
 195         spinlock_t lock;
 196         int irq;
 197         unsigned long port;
 198         void __iomem *iobase;
 199
 200         u32 wcreg;              /* cached write control register value */
 201         u32 wcreg_spdif;        /* S/PDIF setup */
 202         u32 wcreg_spdif_stream; /* S/PDIF setup (temporary) */
 203         u32 rcreg;              /* cached read control register value */
 204
 205         u8 rev;                 /* card revision number */
 206
 207         struct snd_pcm_substream *playback_substream;
 208         struct snd_pcm_substream *capture_substream;
 209
 210         int playback_frlog;     /* log2 of framesize */
 211         int capture_frlog;
 212
 213         size_t playback_periodsize;     /* in bytes, zero if not used */
 214         size_t capture_periodsize;      /* in bytes, zero if not used */
 215
 216         unsigned int fullduplex_mode;
 217         int running;
 218
 219         struct snd_pcm_indirect playback_pcm;
 220         struct snd_pcm_indirect capture_pcm;
 221
 222         struct snd_card *card;
 223         struct snd_pcm *spdif_pcm;
 224         struct snd_pcm *adat_pcm;
 225         struct pci_dev *pci;
 226         struct snd_kcontrol *spdif_ctl;
 227 };
 228
 229 static DEFINE_PCI_DEVICE_TABLE(snd_rme32_ids) = {
 230         {PCI_VDEVICE(XILINX_RME, PCI_DEVICE_ID_RME_DIGI32), 0,},
 231         {PCI_VDEVICE(XILINX_RME, PCI_DEVICE_ID_RME_DIGI32_8), 0,},
 232         {PCI_VDEVICE(XILINX_RME, PCI_DEVICE_ID_RME_DIGI32_PRO), 0,},
 233         {0,}
 234 };
 235
 236 MODULE_DEVICE_TABLE(pci, snd_rme32_ids);
 237
 238 #define RME32_ISWORKING(rme32) ((rme32)->wcreg & RME32_WCR_START)
 239 #define RME32_PRO_WITH_8414(rme32) ((rme32)->pci->device == PCI_DEVICE_ID_RME_DIGI32_PRO && (rme32)->rev == RME32_PRO_REVISION_WITH_8414)
 240
 241 static int snd_rme32_playback_prepare(struct snd_pcm_substream *substream);
 242
 243 static int snd_rme32_capture_prepare(struct snd_pcm_substream *substream);
 244
 245 static int snd_rme32_pcm_trigger(struct snd_pcm_substream *substream, int cmd);
 246
 247 static void snd_rme32_proc_init(struct rme32 * rme32);
 248
 249 static int snd_rme32_create_switches(struct snd_card *card, struct rme32 * rme32);
 250
 251 static inline unsigned int snd_rme32_pcm_byteptr(struct rme32 * rme32)
 252 {
 253         return (readl(rme32->iobase + RME32_IO_GET_POS)
 254                 & RME32_RCR_AUDIO_ADDR_MASK);
 255 }
 256
 257 /* silence callback for halfduplex mode */
 258 static int snd_rme32_playback_silence(struct snd_pcm_substream *substream, int channel, /* not used (interleaved data) */
 259                                       snd_pcm_uframes_t pos,
 260                                       snd_pcm_uframes_t count)
 261 {
 262         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
 263         count <<= rme32->playback_frlog;
 264         pos <<= rme32->playback_frlog;
 265         memset_io(rme32->iobase + RME32_IO_DATA_BUFFER + pos, 0, count);
 266         return 0;
 267 }
 268
 269 /* copy callback for halfduplex mode */
 270 static int snd_rme32_playback_copy(struct snd_pcm_substream *substream, int channel,    /* not used (interleaved data) */
 271                                    snd_pcm_uframes_t pos,
 272                                    void __user *src, snd_pcm_uframes_t count)
 273 {
 274         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
 275         count <<= rme32->playback_frlog;
 276         pos <<= rme32->playback_frlog;
 277         if (copy_from_user_toio(rme32->iobase + RME32_IO_DATA_BUFFER + pos,
 278                             src, count))
 279                 return -EFAULT;
 280         return 0;
 281 }
 282
 283 /* copy callback for halfduplex mode */
 284 static int snd_rme32_capture_copy(struct snd_pcm_substream *substream, int channel,     /* not used (interleaved data) */
 285                                   snd_pcm_uframes_t pos,
 286                                   void __user *dst, snd_pcm_uframes_t count)
 287 {
 288         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
 289         count <<= rme32->capture_frlog;
 290         pos <<= rme32->capture_frlog;
 291         if (copy_to_user_fromio(dst,
 292                             rme32->iobase + RME32_IO_DATA_BUFFER + pos,
 293                             count))
 294                 return -EFAULT;
 295         return 0;
 296 }
 297
 298 /*
 299  * SPDIF I/O capabilities (half-duplex mode)
 300  */
 301 static struct snd_pcm_hardware snd_rme32_spdif_info = {
 302         .info =         (SNDRV_PCM_INFO_MMAP_IOMEM |
 303                          SNDRV_PCM_INFO_MMAP_VALID |
 304                          SNDRV_PCM_INFO_INTERLEAVED |
 305                          SNDRV_PCM_INFO_PAUSE |
 306                          SNDRV_PCM_INFO_SYNC_START),
 307         .formats =      (SNDRV_PCM_FMTBIT_S16_LE |
 308                          SNDRV_PCM_FMTBIT_S32_LE),
 309         .rates =        (SNDRV_PCM_RATE_32000 |
 310                          SNDRV_PCM_RATE_44100 |
 311                          SNDRV_PCM_RATE_48000),
 312         .rate_min =     32000,
 313         .rate_max =     48000,
 314         .channels_min = 2,
 315         .channels_max = 2,
 316         .buffer_bytes_max = RME32_BUFFER_SIZE,
 317         .period_bytes_min = RME32_BLOCK_SIZE,
 318         .period_bytes_max = RME32_BLOCK_SIZE,
 319         .periods_min =  RME32_BUFFER_SIZE / RME32_BLOCK_SIZE,
 320         .periods_max =  RME32_BUFFER_SIZE / RME32_BLOCK_SIZE,
 321         .fifo_size =    0,
 322 };
 323
 324 /*
 325  * ADAT I/O capabilities (half-duplex mode)
 326  */
 327 static struct snd_pcm_hardware snd_rme32_adat_info =
 328 {
 329         .info =              (SNDRV_PCM_INFO_MMAP_IOMEM |
 330                               SNDRV_PCM_INFO_MMAP_VALID |
 331                               SNDRV_PCM_INFO_INTERLEAVED |
 332                               SNDRV_PCM_INFO_PAUSE |
 333                               SNDRV_PCM_INFO_SYNC_START),
 334         .formats=            SNDRV_PCM_FMTBIT_S16_LE,
 335         .rates =             (SNDRV_PCM_RATE_44100 |
 336                               SNDRV_PCM_RATE_48000),
 337         .rate_min =          44100,
 338         .rate_max =          48000,
 339         .channels_min =      8,
 340         .channels_max =      8,
 341         .buffer_bytes_max =  RME32_BUFFER_SIZE,
 342         .period_bytes_min =  RME32_BLOCK_SIZE,
 343         .period_bytes_max =  RME32_BLOCK_SIZE,
 344         .periods_min =      RME32_BUFFER_SIZE / RME32_BLOCK_SIZE,
 345         .periods_max =      RME32_BUFFER_SIZE / RME32_BLOCK_SIZE,
 346         .fifo_size =        0,
 347 };
 348
 349 /*
 350  * SPDIF I/O capabilities (full-duplex mode)
 351  */
 352 static struct snd_pcm_hardware snd_rme32_spdif_fd_info = {
 353         .info =         (SNDRV_PCM_INFO_MMAP |
 354                          SNDRV_PCM_INFO_MMAP_VALID |
 355                          SNDRV_PCM_INFO_INTERLEAVED |
 356                          SNDRV_PCM_INFO_PAUSE |
 357                          SNDRV_PCM_INFO_SYNC_START),
 358         .formats =      (SNDRV_PCM_FMTBIT_S16_LE |
 359                          SNDRV_PCM_FMTBIT_S32_LE),
 360         .rates =        (SNDRV_PCM_RATE_32000 |
 361                          SNDRV_PCM_RATE_44100 |
 362                          SNDRV_PCM_RATE_48000),
 363         .rate_min =     32000,
 364         .rate_max =     48000,
 365         .channels_min = 2,
 366         .channels_max = 2,
 367         .buffer_bytes_max = RME32_MID_BUFFER_SIZE,
 368         .period_bytes_min = RME32_BLOCK_SIZE,
 369         .period_bytes_max = RME32_BLOCK_SIZE,
 370         .periods_min =  2,
 371         .periods_max =  RME32_MID_BUFFER_SIZE / RME32_BLOCK_SIZE,
 372         .fifo_size =    0,
 373 };
 374
 375 /*
 376  * ADAT I/O capabilities (full-duplex mode)
 377  */
 378 static struct snd_pcm_hardware snd_rme32_adat_fd_info =
 379 {
 380         .info =              (SNDRV_PCM_INFO_MMAP |
 381                               SNDRV_PCM_INFO_MMAP_VALID |
 382                               SNDRV_PCM_INFO_INTERLEAVED |
 383                               SNDRV_PCM_INFO_PAUSE |
 384                               SNDRV_PCM_INFO_SYNC_START),
 385         .formats=            SNDRV_PCM_FMTBIT_S16_LE,
 386         .rates =             (SNDRV_PCM_RATE_44100 |
 387                               SNDRV_PCM_RATE_48000),
 388         .rate_min =          44100,
 389         .rate_max =          48000,
 390         .channels_min =      8,
 391         .channels_max =      8,
 392         .buffer_bytes_max =  RME32_MID_BUFFER_SIZE,
 393         .period_bytes_min =  RME32_BLOCK_SIZE,
 394         .period_bytes_max =  RME32_BLOCK_SIZE,
 395         .periods_min =      2,
 396         .periods_max =      RME32_MID_BUFFER_SIZE / RME32_BLOCK_SIZE,
 397         .fifo_size =        0,
 398 };
 399
 400 static void snd_rme32_reset_dac(struct rme32 *rme32)
 401 {
 402         writel(rme32->wcreg | RME32_WCR_PD,
 403                rme32->iobase + RME32_IO_CONTROL_REGISTER);
 404         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
 405 }
 406
 407 static int snd_rme32_playback_getrate(struct rme32 * rme32)
 408 {
 409         int rate;
 410
 411         rate = ((rme32->wcreg >> RME32_WCR_BITPOS_FREQ_0) & 1) +
 412                (((rme32->wcreg >> RME32_WCR_BITPOS_FREQ_1) & 1) << 1);
 413         switch (rate) {
 414         case 1:
 415                 rate = 32000;
 416                 break;
 417         case 2:
 418                 rate = 44100;
 419                 break;
 420         case 3:
 421                 rate = 48000;
 422                 break;
 423         default:
 424                 return -1;
 425         }
 426         return (rme32->wcreg & RME32_WCR_DS_BM) ? rate << 1 : rate;
 427 }
 428
 429 static int snd_rme32_capture_getrate(struct rme32 * rme32, int *is_adat)
 430 {
 431         int n;
 432
 433         *is_adat = 0;
 434         if (rme32->rcreg & RME32_RCR_LOCK) {
 435                 /* ADAT rate */
 436                 *is_adat = 1;
 437         }
 438         if (rme32->rcreg & RME32_RCR_ERF) {
 439                 return -1;
 440         }
 441
 442         /* S/PDIF rate */
 443         n = ((rme32->rcreg >> RME32_RCR_BITPOS_F0) & 1) +
 444                 (((rme32->rcreg >> RME32_RCR_BITPOS_F1) & 1) << 1) +
 445                 (((rme32->rcreg >> RME32_RCR_BITPOS_F2) & 1) << 2);
 446
 447         if (RME32_PRO_WITH_8414(rme32))
 448                 switch (n) {    /* supporting the CS8414 */
 449                 case 0:
 450                 case 1:
 451                 case 2:
 452                         return -1;
 453                 case 3:
 454                         return 96000;
 455                 case 4:
 456                         return 88200;
 457                 case 5:
 458                         return 48000;
 459                 case 6:
 460                         return 44100;
 461                 case 7:
 462                         return 32000;
 463                 default:
 464                         return -1;
 465                         break;
 466                 }
 467         else
 468                 switch (n) {    /* supporting the CS8412 */
 469                 case 0:
 470                         return -1;
 471                 case 1:
 472                         return 48000;
 473                 case 2:
 474                         return 44100;
 475                 case 3:
 476                         return 32000;
 477                 case 4:
 478                         return 48000;
 479                 case 5:
 480                         return 44100;
 481                 case 6:
 482                         return 44056;
 483                 case 7:
 484                         return 32000;
 485                 default:
 486                         break;
 487                 }
 488         return -1;
 489 }
 490
 491 static int snd_rme32_playback_setrate(struct rme32 * rme32, int rate)
 492 {
 493         int ds;
 494
 495         ds = rme32->wcreg & RME32_WCR_DS_BM;
 496         switch (rate) {
 497         case 32000:
 498                 rme32->wcreg &= ~RME32_WCR_DS_BM;
 499                 rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_0) &
 500                         ~RME32_WCR_FREQ_1;
 501                 break;
 502         case 44100:
 503                 rme32->wcreg &= ~RME32_WCR_DS_BM;
 504                 rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_1) &
 505                         ~RME32_WCR_FREQ_0;
 506                 break;
 507         case 48000:
 508                 rme32->wcreg &= ~RME32_WCR_DS_BM;
 509                 rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_0) |
 510                         RME32_WCR_FREQ_1;
 511                 break;
 512         case 64000:
 513                 if (rme32->pci->device != PCI_DEVICE_ID_RME_DIGI32_PRO)
 514                         return -EINVAL;
 515                 rme32->wcreg |= RME32_WCR_DS_BM;
 516                 rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_0) &
 517                         ~RME32_WCR_FREQ_1;
 518                 break;
 519         case 88200:
 520                 if (rme32->pci->device != PCI_DEVICE_ID_RME_DIGI32_PRO)
 521                         return -EINVAL;
 522                 rme32->wcreg |= RME32_WCR_DS_BM;
 523                 rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_1) &
 524                         ~RME32_WCR_FREQ_0;
 525                 break;
 526         case 96000:
 527                 if (rme32->pci->device != PCI_DEVICE_ID_RME_DIGI32_PRO)
 528                         return -EINVAL;
 529                 rme32->wcreg |= RME32_WCR_DS_BM;
 530                 rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_0) |
 531                         RME32_WCR_FREQ_1;
 532                 break;
 533         default:
 534                 return -EINVAL;
 535         }
 536         if ((!ds && rme32->wcreg & RME32_WCR_DS_BM) ||
 537             (ds && !(rme32->wcreg & RME32_WCR_DS_BM)))
 538         {
 539                 /* change to/from double-speed: reset the DAC (if available) */
 540                 snd_rme32_reset_dac(rme32);
 541         } else {
 542                 writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
 543         }
 544         return 0;
 545 }
 546
 547 static int snd_rme32_setclockmode(struct rme32 * rme32, int mode)
 548 {
 549         switch (mode) {
 550         case RME32_CLOCKMODE_SLAVE:
 551                 /* AutoSync */
 552                 rme32->wcreg = (rme32->wcreg & ~RME32_WCR_FREQ_0) &
 553                         ~RME32_WCR_FREQ_1;
 554                 break;
 555         case RME32_CLOCKMODE_MASTER_32:
 556                 /* Internal 32.0kHz */
 557                 rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_0) &
 558                         ~RME32_WCR_FREQ_1;
 559                 break;
 560         case RME32_CLOCKMODE_MASTER_44:
 561                 /* Internal 44.1kHz */
 562                 rme32->wcreg = (rme32->wcreg & ~RME32_WCR_FREQ_0) |
 563                         RME32_WCR_FREQ_1;
 564                 break;
 565         case RME32_CLOCKMODE_MASTER_48:
 566                 /* Internal 48.0kHz */
 567                 rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_0) |
 568                         RME32_WCR_FREQ_1;
 569                 break;
 570         default:
 571                 return -EINVAL;
 572         }
 573         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
 574         return 0;
 575 }
 576
 577 static int snd_rme32_getclockmode(struct rme32 * rme32)
 578 {
 579         return ((rme32->wcreg >> RME32_WCR_BITPOS_FREQ_0) & 1) +
 580             (((rme32->wcreg >> RME32_WCR_BITPOS_FREQ_1) & 1) << 1);
 581 }
 582
 583 static int snd_rme32_setinputtype(struct rme32 * rme32, int type)
 584 {
 585         switch (type) {
 586         case RME32_INPUT_OPTICAL:
 587                 rme32->wcreg = (rme32->wcreg & ~RME32_WCR_INP_0) &
 588                         ~RME32_WCR_INP_1;
 589                 break;
 590         case RME32_INPUT_COAXIAL:
 591                 rme32->wcreg = (rme32->wcreg | RME32_WCR_INP_0) &
 592                         ~RME32_WCR_INP_1;
 593                 break;
 594         case RME32_INPUT_INTERNAL:
 595                 rme32->wcreg = (rme32->wcreg & ~RME32_WCR_INP_0) |
 596                         RME32_WCR_INP_1;
 597                 break;
 598         case RME32_INPUT_XLR:
 599                 rme32->wcreg = (rme32->wcreg | RME32_WCR_INP_0) |
 600                         RME32_WCR_INP_1;
 601                 break;
 602         default:
 603                 return -EINVAL;
 604         }
 605         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
 606         return 0;
 607 }
 608
 609 static int snd_rme32_getinputtype(struct rme32 * rme32)
 610 {
 611         return ((rme32->wcreg >> RME32_WCR_BITPOS_INP_0) & 1) +
 612             (((rme32->wcreg >> RME32_WCR_BITPOS_INP_1) & 1) << 1);
 613 }
 614
 615 static void
 616 snd_rme32_setframelog(struct rme32 * rme32, int n_channels, int is_playback)
 617 {
 618         int frlog;
 619
 620         if (n_channels == 2) {
 621                 frlog = 1;
 622         } else {
 623                 /* assume 8 channels */
 624                 frlog = 3;
 625         }
 626         if (is_playback) {
 627                 frlog += (rme32->wcreg & RME32_WCR_MODE24) ? 2 : 1;
 628                 rme32->playback_frlog = frlog;
 629         } else {
 630                 frlog += (rme32->wcreg & RME32_WCR_MODE24) ? 2 : 1;
 631                 rme32->capture_frlog = frlog;
 632         }
 633 }
 634
 635 static int snd_rme32_setformat(struct rme32 * rme32, int format)
 636 {
 637         switch (format) {
 638         case SNDRV_PCM_FORMAT_S16_LE:
 639                 rme32->wcreg &= ~RME32_WCR_MODE24;
 640                 break;
 641         case SNDRV_PCM_FORMAT_S32_LE:
 642                 rme32->wcreg |= RME32_WCR_MODE24;
 643                 break;
 644         default:
 645                 return -EINVAL;
 646         }
 647         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
 648         return 0;
 649 }
 650
 651 static int
 652 snd_rme32_playback_hw_params(struct snd_pcm_substream *substream,
 653                              struct snd_pcm_hw_params *params)
 654 {
 655         int err, rate, dummy;
 656         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
 657         struct snd_pcm_runtime *runtime = substream->runtime;
 658
 659         if (rme32->fullduplex_mode) {
 660                 err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
 661                 if (err < 0)
 662                         return err;
 663         } else {
 664                 runtime->dma_area = (void __force *)(rme32->iobase +
 665                                                      RME32_IO_DATA_BUFFER);
 666                 runtime->dma_addr = rme32->port + RME32_IO_DATA_BUFFER;
 667                 runtime->dma_bytes = RME32_BUFFER_SIZE;
 668         }
 669
 670         spin_lock_irq(&rme32->lock);
 671         if ((rme32->rcreg & RME32_RCR_KMODE) &&
 672             (rate = snd_rme32_capture_getrate(rme32, &dummy)) > 0) {
 673                 /* AutoSync */
 674                 if ((int)params_rate(params) != rate) {
 675                         spin_unlock_irq(&rme32->lock);
 676                         return -EIO;
 677                 }
 678         } else if ((err = snd_rme32_playback_setrate(rme32, params_rate(params))) < 0) {
 679                 spin_unlock_irq(&rme32->lock);
 680                 return err;
 681         }
 682         if ((err = snd_rme32_setformat(rme32, params_format(params))) < 0) {
 683                 spin_unlock_irq(&rme32->lock);
 684                 return err;
 685         }
 686
 687         snd_rme32_setframelog(rme32, params_channels(params), 1);
 688         if (rme32->capture_periodsize != 0) {
 689                 if (params_period_size(params) << rme32->playback_frlog != rme32->capture_periodsize) {
 690                         spin_unlock_irq(&rme32->lock);
 691                         return -EBUSY;
 692                 }
 693         }
 694         rme32->playback_periodsize = params_period_size(params) << rme32->playback_frlog;
 695         /* S/PDIF setup */
 696         if ((rme32->wcreg & RME32_WCR_ADAT) == 0) {
 697                 rme32->wcreg &= ~(RME32_WCR_PRO | RME32_WCR_EMP);
 698                 rme32->wcreg |= rme32->wcreg_spdif_stream;
 699                 writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
 700         }
 701         spin_unlock_irq(&rme32->lock);
 702
 703         return 0;
 704 }
 705
 706 static int
 707 snd_rme32_capture_hw_params(struct snd_pcm_substream *substream,
 708                             struct snd_pcm_hw_params *params)
 709 {
 710         int err, isadat, rate;
 711         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
 712         struct snd_pcm_runtime *runtime = substream->runtime;
 713
 714         if (rme32->fullduplex_mode) {
 715                 err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
 716                 if (err < 0)
 717                         return err;
 718         } else {
 719                 runtime->dma_area = (void __force *)rme32->iobase +
 720                                         RME32_IO_DATA_BUFFER;
 721                 runtime->dma_addr = rme32->port + RME32_IO_DATA_BUFFER;
 722                 runtime->dma_bytes = RME32_BUFFER_SIZE;
 723         }
 724
 725         spin_lock_irq(&rme32->lock);
 726         /* enable AutoSync for record-preparing */
 727         rme32->wcreg |= RME32_WCR_AUTOSYNC;
 728         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
 729
 730         if ((err = snd_rme32_setformat(rme32, params_format(params))) < 0) {
 731                 spin_unlock_irq(&rme32->lock);
 732                 return err;
 733         }
 734         if ((err = snd_rme32_playback_setrate(rme32, params_rate(params))) < 0) {
 735                 spin_unlock_irq(&rme32->lock);
 736                 return err;
 737         }
 738         if ((rate = snd_rme32_capture_getrate(rme32, &isadat)) > 0) {
 739                 if ((int)params_rate(params) != rate) {
 740                         spin_unlock_irq(&rme32->lock);
 741                         return -EIO;
 742                 }
 743                 if ((isadat && runtime->hw.channels_min == 2) ||
 744                     (!isadat && runtime->hw.channels_min == 8)) {
 745                         spin_unlock_irq(&rme32->lock);
 746                         return -EIO;
 747                 }
 748         }
 749         /* AutoSync off for recording */
 750         rme32->wcreg &= ~RME32_WCR_AUTOSYNC;
 751         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
 752
 753         snd_rme32_setframelog(rme32, params_channels(params), 0);
 754         if (rme32->playback_periodsize != 0) {
 755                 if (params_period_size(params) << rme32->capture_frlog !=
 756                     rme32->playback_periodsize) {
 757                         spin_unlock_irq(&rme32->lock);
 758                         return -EBUSY;
 759                 }
 760         }
 761         rme32->capture_periodsize =
 762             params_period_size(params) << rme32->capture_frlog;
 763         spin_unlock_irq(&rme32->lock);
 764
 765         return 0;
 766 }
 767
 768 static int snd_rme32_pcm_hw_free(struct snd_pcm_substream *substream)
 769 {
 770         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
 771         if (! rme32->fullduplex_mode)
 772                 return 0;
 773         return snd_pcm_lib_free_pages(substream);
 774 }
 775
 776 static void snd_rme32_pcm_start(struct rme32 * rme32, int from_pause)
 777 {
 778         if (!from_pause) {
 779                 writel(0, rme32->iobase + RME32_IO_RESET_POS);
 780         }
 781
 782         rme32->wcreg |= RME32_WCR_START;
 783         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
 784 }
 785
 786 static void snd_rme32_pcm_stop(struct rme32 * rme32, int to_pause)
 787 {
 788         /*
 789          * Check if there is an unconfirmed IRQ, if so confirm it, or else
 790          * the hardware will not stop generating interrupts
 791          */
 792         rme32->rcreg = readl(rme32->iobase + RME32_IO_CONTROL_REGISTER);
 793         if (rme32->rcreg & RME32_RCR_IRQ) {
 794                 writel(0, rme32->iobase + RME32_IO_CONFIRM_ACTION_IRQ);
 795         }
 796         rme32->wcreg &= ~RME32_WCR_START;
 797         if (rme32->wcreg & RME32_WCR_SEL)
 798                 rme32->wcreg |= RME32_WCR_MUTE;
 799         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
 800         if (! to_pause)
 801                 writel(0, rme32->iobase + RME32_IO_RESET_POS);
 802 }
 803
 804 static irqreturn_t snd_rme32_interrupt(int irq, void *dev_id)
 805 {
 806         struct rme32 *rme32 = (struct rme32 *) dev_id;
 807
 808         rme32->rcreg = readl(rme32->iobase + RME32_IO_CONTROL_REGISTER);
 809         if (!(rme32->rcreg & RME32_RCR_IRQ)) {
 810                 return IRQ_NONE;
 811         } else {
 812                 if (rme32->capture_substream) {
 813                         snd_pcm_period_elapsed(rme32->capture_substream);
 814                 }
 815                 if (rme32->playback_substream) {
 816                         snd_pcm_period_elapsed(rme32->playback_substream);
 817                 }
 818                 writel(0, rme32->iobase + RME32_IO_CONFIRM_ACTION_IRQ);
 819         }
 820         return IRQ_HANDLED;
 821 }
 822
 823 static unsigned int period_bytes[] = { RME32_BLOCK_SIZE };
 824
 825
 826 static struct snd_pcm_hw_constraint_list hw_constraints_period_bytes = {
 827         .count = ARRAY_SIZE(period_bytes),
 828         .list = period_bytes,
 829         .mask = 0
 830 };
 831
 832 static void snd_rme32_set_buffer_constraint(struct rme32 *rme32, struct snd_pcm_runtime *runtime)
 833 {
 834         if (! rme32->fullduplex_mode) {
 835                 snd_pcm_hw_constraint_minmax(runtime,
 836                                              SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
 837                                              RME32_BUFFER_SIZE, RME32_BUFFER_SIZE);
 838                 snd_pcm_hw_constraint_list(runtime, 0,
 839                                            SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
 840                                            &hw_constraints_period_bytes);
 841         }
 842 }
 843
 844 static int snd_rme32_playback_spdif_open(struct snd_pcm_substream *substream)
 845 {
 846         int rate, dummy;
 847         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
 848         struct snd_pcm_runtime *runtime = substream->runtime;
 849
 850         snd_pcm_set_sync(substream);
 851
 852         spin_lock_irq(&rme32->lock);
 853         if (rme32->playback_substream != NULL) {
 854                 spin_unlock_irq(&rme32->lock);
 855                 return -EBUSY;
 856         }
 857         rme32->wcreg &= ~RME32_WCR_ADAT;
 858         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
 859         rme32->playback_substream = substream;
 860         spin_unlock_irq(&rme32->lock);
 861
 862         if (rme32->fullduplex_mode)
 863                 runtime->hw = snd_rme32_spdif_fd_info;
 864         else
 865                 runtime->hw = snd_rme32_spdif_info;
 866         if (rme32->pci->device == PCI_DEVICE_ID_RME_DIGI32_PRO) {
 867                 runtime->hw.rates |= SNDRV_PCM_RATE_64000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000;
 868                 runtime->hw.rate_max = 96000;
 869         }
 870         if ((rme32->rcreg & RME32_RCR_KMODE) &&
 871             (rate = snd_rme32_capture_getrate(rme32, &dummy)) > 0) {
 872                 /* AutoSync */
 873                 runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
 874                 runtime->hw.rate_min = rate;
 875                 runtime->hw.rate_max = rate;
 876         }
 877
 878         snd_rme32_set_buffer_constraint(rme32, runtime);
 879
 880         rme32->wcreg_spdif_stream = rme32->wcreg_spdif;
 881         rme32->spdif_ctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
 882         snd_ctl_notify(rme32->card, SNDRV_CTL_EVENT_MASK_VALUE |
 883                        SNDRV_CTL_EVENT_MASK_INFO, &rme32->spdif_ctl->id);
 884         return 0;
 885 }
 886
 887 static int snd_rme32_capture_spdif_open(struct snd_pcm_substream *substream)
 888 {
 889         int isadat, rate;
 890         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
 891         struct snd_pcm_runtime *runtime = substream->runtime;
 892
 893         snd_pcm_set_sync(substream);
 894
 895         spin_lock_irq(&rme32->lock);
 896         if (rme32->capture_substream != NULL) {
 897                 spin_unlock_irq(&rme32->lock);
 898                 return -EBUSY;
 899         }
 900         rme32->capture_substream = substream;
 901         spin_unlock_irq(&rme32->lock);
 902
 903         if (rme32->fullduplex_mode)
 904                 runtime->hw = snd_rme32_spdif_fd_info;
 905         else
 906                 runtime->hw = snd_rme32_spdif_info;
 907         if (RME32_PRO_WITH_8414(rme32)) {
 908                 runtime->hw.rates |= SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000;
 909                 runtime->hw.rate_max = 96000;
 910         }
 911         if ((rate = snd_rme32_capture_getrate(rme32, &isadat)) > 0) {
 912                 if (isadat) {
 913                         return -EIO;
 914                 }
 915                 runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
 916                 runtime->hw.rate_min = rate;
 917                 runtime->hw.rate_max = rate;
 918         }
 919
 920         snd_rme32_set_buffer_constraint(rme32, runtime);
 921
 922         return 0;
 923 }
 924
 925 static int
 926 snd_rme32_playback_adat_open(struct snd_pcm_substream *substream)
 927 {
 928         int rate, dummy;
 929         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
 930         struct snd_pcm_runtime *runtime = substream->runtime;
 931
 932         snd_pcm_set_sync(substream);
 933
 934         spin_lock_irq(&rme32->lock);
 935         if (rme32->playback_substream != NULL) {
 936                 spin_unlock_irq(&rme32->lock);
 937                 return -EBUSY;
 938         }
 939         rme32->wcreg |= RME32_WCR_ADAT;
 940         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
 941         rme32->playback_substream = substream;
 942         spin_unlock_irq(&rme32->lock);
 943
 944         if (rme32->fullduplex_mode)
 945                 runtime->hw = snd_rme32_adat_fd_info;
 946         else
 947                 runtime->hw = snd_rme32_adat_info;
 948         if ((rme32->rcreg & RME32_RCR_KMODE) &&
 949             (rate = snd_rme32_capture_getrate(rme32, &dummy)) > 0) {
 950                 /* AutoSync */
 951                 runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
 952                 runtime->hw.rate_min = rate;
 953                 runtime->hw.rate_max = rate;
 954         }
 955
 956         snd_rme32_set_buffer_constraint(rme32, runtime);
 957         return 0;
 958 }
 959
 960 static int
 961 snd_rme32_capture_adat_open(struct snd_pcm_substream *substream)
 962 {
 963         int isadat, rate;
 964         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
 965         struct snd_pcm_runtime *runtime = substream->runtime;
 966
 967         if (rme32->fullduplex_mode)
 968                 runtime->hw = snd_rme32_adat_fd_info;
 969         else
 970                 runtime->hw = snd_rme32_adat_info;
 971         if ((rate = snd_rme32_capture_getrate(rme32, &isadat)) > 0) {
 972                 if (!isadat) {
 973                         return -EIO;
 974                 }
 975                 runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
 976                 runtime->hw.rate_min = rate;
 977                 runtime->hw.rate_max = rate;
 978         }
 979
 980         snd_pcm_set_sync(substream);
 981
 982         spin_lock_irq(&rme32->lock);
 983         if (rme32->capture_substream != NULL) {
 984                 spin_unlock_irq(&rme32->lock);
 985                 return -EBUSY;
 986         }
 987         rme32->capture_substream = substream;
 988         spin_unlock_irq(&rme32->lock);
 989
 990         snd_rme32_set_buffer_constraint(rme32, runtime);
 991         return 0;
 992 }
 993
 994 static int snd_rme32_playback_close(struct snd_pcm_substream *substream)
 995 {
 996         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
 997         int spdif = 0;
 998
 999         spin_lock_irq(&rme32->lock);
1000         rme32->playback_substream = NULL;
1001         rme32->playback_periodsize = 0;
1002         spdif = (rme32->wcreg & RME32_WCR_ADAT) == 0;
1003         spin_unlock_irq(&rme32->lock);
1004         if (spdif) {
1005                 rme32->spdif_ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1006                 snd_ctl_notify(rme32->card, SNDRV_CTL_EVENT_MASK_VALUE |
1007                                SNDRV_CTL_EVENT_MASK_INFO,
1008                                &rme32->spdif_ctl->id);
1009         }
1010         return 0;
1011 }
1012
1013 static int snd_rme32_capture_close(struct snd_pcm_substream *substream)
1014 {
1015         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1016
1017         spin_lock_irq(&rme32->lock);
1018         rme32->capture_substream = NULL;
1019         rme32->capture_periodsize = 0;
1020         spin_unlock(&rme32->lock);
1021         return 0;
1022 }
1023
1024 static int snd_rme32_playback_prepare(struct snd_pcm_substream *substream)
1025 {
1026         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1027
1028         spin_lock_irq(&rme32->lock);
1029         if (rme32->fullduplex_mode) {
1030                 memset(&rme32->playback_pcm, 0, sizeof(rme32->playback_pcm));
1031                 rme32->playback_pcm.hw_buffer_size = RME32_BUFFER_SIZE;
1032                 rme32->playback_pcm.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
1033         } else {
1034                 writel(0, rme32->iobase + RME32_IO_RESET_POS);
1035         }
1036         if (rme32->wcreg & RME32_WCR_SEL)
1037                 rme32->wcreg &= ~RME32_WCR_MUTE;
1038         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
1039         spin_unlock_irq(&rme32->lock);
1040         return 0;
1041 }
1042
1043 static int snd_rme32_capture_prepare(struct snd_pcm_substream *substream)
1044 {
1045         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1046
1047         spin_lock_irq(&rme32->lock);
1048         if (rme32->fullduplex_mode) {
1049                 memset(&rme32->capture_pcm, 0, sizeof(rme32->capture_pcm));
1050                 rme32->capture_pcm.hw_buffer_size = RME32_BUFFER_SIZE;
1051                 rme32->capture_pcm.hw_queue_size = RME32_BUFFER_SIZE / 2;
1052                 rme32->capture_pcm.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
1053         } else {
1054                 writel(0, rme32->iobase + RME32_IO_RESET_POS);
1055         }
1056         spin_unlock_irq(&rme32->lock);
1057         return 0;
1058 }
1059
1060 static int
1061 snd_rme32_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
1062 {
1063         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1064         struct snd_pcm_substream *s;
1065
1066         spin_lock(&rme32->lock);
1067         snd_pcm_group_for_each_entry(s, substream) {
1068                 if (s != rme32->playback_substream &&
1069                     s != rme32->capture_substream)
1070                         continue;
1071                 switch (cmd) {
1072                 case SNDRV_PCM_TRIGGER_START:
1073                         rme32->running |= (1 << s->stream);
1074                         if (rme32->fullduplex_mode) {
1075                                 /* remember the current DMA position */
1076                                 if (s == rme32->playback_substream) {
1077                                         rme32->playback_pcm.hw_io =
1078                                         rme32->playback_pcm.hw_data = snd_rme32_pcm_byteptr(rme32);
1079                                 } else {
1080                                         rme32->capture_pcm.hw_io =
1081                                         rme32->capture_pcm.hw_data = snd_rme32_pcm_byteptr(rme32);
1082                                 }
1083                         }
1084                         break;
1085                 case SNDRV_PCM_TRIGGER_STOP:
1086                         rme32->running &= ~(1 << s->stream);
1087                         break;
1088                 }
1089                 snd_pcm_trigger_done(s, substream);
1090         }
1091
1092         /* prefill playback buffer */
1093         if (cmd == SNDRV_PCM_TRIGGER_START && rme32->fullduplex_mode) {
1094                 snd_pcm_group_for_each_entry(s, substream) {
1095                         if (s == rme32->playback_substream) {
1096                                 s->ops->ack(s);
1097                                 break;
1098                         }
1099                 }
1100         }
1101
1102         switch (cmd) {
1103         case SNDRV_PCM_TRIGGER_START:
1104                 if (rme32->running && ! RME32_ISWORKING(rme32))
1105                         snd_rme32_pcm_start(rme32, 0);
1106                 break;
1107         case SNDRV_PCM_TRIGGER_STOP:
1108                 if (! rme32->running && RME32_ISWORKING(rme32))
1109                         snd_rme32_pcm_stop(rme32, 0);
1110                 break;
1111         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1112                 if (rme32->running && RME32_ISWORKING(rme32))
1113                         snd_rme32_pcm_stop(rme32, 1);
1114                 break;
1115         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1116                 if (rme32->running && ! RME32_ISWORKING(rme32))
1117                         snd_rme32_pcm_start(rme32, 1);
1118                 break;
1119         }
1120         spin_unlock(&rme32->lock);
1121         return 0;
1122 }
1123
1124 /* pointer callback for halfduplex mode */
1125 static snd_pcm_uframes_t
1126 snd_rme32_playback_pointer(struct snd_pcm_substream *substream)
1127 {
1128         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1129         return snd_rme32_pcm_byteptr(rme32) >> rme32->playback_frlog;
1130 }
1131
1132 static snd_pcm_uframes_t
1133 snd_rme32_capture_pointer(struct snd_pcm_substream *substream)
1134 {
1135         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1136         return snd_rme32_pcm_byteptr(rme32) >> rme32->capture_frlog;
1137 }
1138
1139
1140 /* ack and pointer callbacks for fullduplex mode */
1141 static void snd_rme32_pb_trans_copy(struct snd_pcm_substream *substream,
1142                                     struct snd_pcm_indirect *rec, size_t bytes)
1143 {
1144         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1145         memcpy_toio(rme32->iobase + RME32_IO_DATA_BUFFER + rec->hw_data,
1146                     substream->runtime->dma_area + rec->sw_data, bytes);
1147 }
1148
1149 static int snd_rme32_playback_fd_ack(struct snd_pcm_substream *substream)
1150 {
1151         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1152         struct snd_pcm_indirect *rec, *cprec;
1153
1154         rec = &rme32->playback_pcm;
1155         cprec = &rme32->capture_pcm;
1156         spin_lock(&rme32->lock);
1157         rec->hw_queue_size = RME32_BUFFER_SIZE;
1158         if (rme32->running & (1 << SNDRV_PCM_STREAM_CAPTURE))
1159                 rec->hw_queue_size -= cprec->hw_ready;
1160         spin_unlock(&rme32->lock);
1161         snd_pcm_indirect_playback_transfer(substream, rec,
1162                                            snd_rme32_pb_trans_copy);
1163         return 0;
1164 }
1165
1166 static void snd_rme32_cp_trans_copy(struct snd_pcm_substream *substream,
1167                                     struct snd_pcm_indirect *rec, size_t bytes)
1168 {
1169         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1170         memcpy_fromio(substream->runtime->dma_area + rec->sw_data,
1171                       rme32->iobase + RME32_IO_DATA_BUFFER + rec->hw_data,
1172                       bytes);
1173 }
1174
1175 static int snd_rme32_capture_fd_ack(struct snd_pcm_substream *substream)
1176 {
1177         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1178         snd_pcm_indirect_capture_transfer(substream, &rme32->capture_pcm,
1179                                           snd_rme32_cp_trans_copy);
1180         return 0;
1181 }
1182
1183 static snd_pcm_uframes_t
1184 snd_rme32_playback_fd_pointer(struct snd_pcm_substream *substream)
1185 {
1186         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1187         return snd_pcm_indirect_playback_pointer(substream, &rme32->playback_pcm,
1188                                                  snd_rme32_pcm_byteptr(rme32));
1189 }
1190
1191 static snd_pcm_uframes_t
1192 snd_rme32_capture_fd_pointer(struct snd_pcm_substream *substream)
1193 {
1194         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1195         return snd_pcm_indirect_capture_pointer(substream, &rme32->capture_pcm,
1196                                                 snd_rme32_pcm_byteptr(rme32));
1197 }
1198
1199 /* for halfduplex mode */
1200 static struct snd_pcm_ops snd_rme32_playback_spdif_ops = {
1201         .open =         snd_rme32_playback_spdif_open,
1202         .close =        snd_rme32_playback_close,
1203         .ioctl =        snd_pcm_lib_ioctl,
1204         .hw_params =    snd_rme32_playback_hw_params,
1205         .hw_free =      snd_rme32_pcm_hw_free,
1206         .prepare =      snd_rme32_playback_prepare,
1207         .trigger =      snd_rme32_pcm_trigger,
1208         .pointer =      snd_rme32_playback_pointer,
1209         .copy =         snd_rme32_playback_copy,
1210         .silence =      snd_rme32_playback_silence,
1211         .mmap =         snd_pcm_lib_mmap_iomem,
1212 };
1213
1214 static struct snd_pcm_ops snd_rme32_capture_spdif_ops = {
1215         .open =         snd_rme32_capture_spdif_open,
1216         .close =        snd_rme32_capture_close,
1217         .ioctl =        snd_pcm_lib_ioctl,
1218         .hw_params =    snd_rme32_capture_hw_params,
1219         .hw_free =      snd_rme32_pcm_hw_free,
1220         .prepare =      snd_rme32_capture_prepare,
1221         .trigger =      snd_rme32_pcm_trigger,
1222         .pointer =      snd_rme32_capture_pointer,
1223         .copy =         snd_rme32_capture_copy,
1224         .mmap =         snd_pcm_lib_mmap_iomem,
1225 };
1226
1227 static struct snd_pcm_ops snd_rme32_playback_adat_ops = {
1228         .open =         snd_rme32_playback_adat_open,
1229         .close =        snd_rme32_playback_close,
1230         .ioctl =        snd_pcm_lib_ioctl,
1231         .hw_params =    snd_rme32_playback_hw_params,
1232         .prepare =      snd_rme32_playback_prepare,
1233         .trigger =      snd_rme32_pcm_trigger,
1234         .pointer =      snd_rme32_playback_pointer,
1235         .copy =         snd_rme32_playback_copy,
1236         .silence =      snd_rme32_playback_silence,
1237         .mmap =         snd_pcm_lib_mmap_iomem,
1238 };
1239
1240 static struct snd_pcm_ops snd_rme32_capture_adat_ops = {
1241         .open =         snd_rme32_capture_adat_open,
1242         .close =        snd_rme32_capture_close,
1243         .ioctl =        snd_pcm_lib_ioctl,
1244         .hw_params =    snd_rme32_capture_hw_params,
1245         .prepare =      snd_rme32_capture_prepare,
1246         .trigger =      snd_rme32_pcm_trigger,
1247         .pointer =      snd_rme32_capture_pointer,
1248         .copy =         snd_rme32_capture_copy,
1249         .mmap =         snd_pcm_lib_mmap_iomem,
1250 };
1251
1252 /* for fullduplex mode */
1253 static struct snd_pcm_ops snd_rme32_playback_spdif_fd_ops = {
1254         .open =         snd_rme32_playback_spdif_open,
1255         .close =        snd_rme32_playback_close,
1256         .ioctl =        snd_pcm_lib_ioctl,
1257         .hw_params =    snd_rme32_playback_hw_params,
1258         .hw_free =      snd_rme32_pcm_hw_free,
1259         .prepare =      snd_rme32_playback_prepare,
1260         .trigger =      snd_rme32_pcm_trigger,
1261         .pointer =      snd_rme32_playback_fd_pointer,
1262         .ack =          snd_rme32_playback_fd_ack,
1263 };
1264
1265 static struct snd_pcm_ops snd_rme32_capture_spdif_fd_ops = {
1266         .open =         snd_rme32_capture_spdif_open,
1267         .close =        snd_rme32_capture_close,
1268         .ioctl =        snd_pcm_lib_ioctl,
1269         .hw_params =    snd_rme32_capture_hw_params,
1270         .hw_free =      snd_rme32_pcm_hw_free,
1271         .prepare =      snd_rme32_capture_prepare,
1272         .trigger =      snd_rme32_pcm_trigger,
1273         .pointer =      snd_rme32_capture_fd_pointer,
1274         .ack =          snd_rme32_capture_fd_ack,
1275 };
1276
1277 static struct snd_pcm_ops snd_rme32_playback_adat_fd_ops = {
1278         .open =         snd_rme32_playback_adat_open,
1279         .close =        snd_rme32_playback_close,
1280         .ioctl =        snd_pcm_lib_ioctl,
1281         .hw_params =    snd_rme32_playback_hw_params,
1282         .prepare =      snd_rme32_playback_prepare,
1283         .trigger =      snd_rme32_pcm_trigger,
1284         .pointer =      snd_rme32_playback_fd_pointer,
1285         .ack =          snd_rme32_playback_fd_ack,
1286 };
1287
1288 static struct snd_pcm_ops snd_rme32_capture_adat_fd_ops = {
1289         .open =         snd_rme32_capture_adat_open,
1290         .close =        snd_rme32_capture_close,
1291         .ioctl =        snd_pcm_lib_ioctl,
1292         .hw_params =    snd_rme32_capture_hw_params,
1293         .prepare =      snd_rme32_capture_prepare,
1294         .trigger =      snd_rme32_pcm_trigger,
1295         .pointer =      snd_rme32_capture_fd_pointer,
1296         .ack =          snd_rme32_capture_fd_ack,
1297 };
1298
1299 static void snd_rme32_free(void *private_data)
1300 {
1301         struct rme32 *rme32 = (struct rme32 *) private_data;
1302
1303         if (rme32 == NULL) {
1304                 return;
1305         }
1306         if (rme32->irq >= 0) {
1307                 snd_rme32_pcm_stop(rme32, 0);
1308                 free_irq(rme32->irq, (void *) rme32);
1309                 rme32->irq = -1;
1310         }
1311         if (rme32->iobase) {
1312                 iounmap(rme32->iobase);
1313                 rme32->iobase = NULL;
1314         }
1315         if (rme32->port) {
1316                 pci_release_regions(rme32->pci);
1317                 rme32->port = 0;
1318         }
1319         pci_disable_device(rme32->pci);
1320 }
1321
1322 static void snd_rme32_free_spdif_pcm(struct snd_pcm *pcm)
1323 {
1324         struct rme32 *rme32 = (struct rme32 *) pcm->private_data;
1325         rme32->spdif_pcm = NULL;
1326 }
1327
1328 static void
1329 snd_rme32_free_adat_pcm(struct snd_pcm *pcm)
1330 {
1331         struct rme32 *rme32 = (struct rme32 *) pcm->private_data;
1332         rme32->adat_pcm = NULL;
1333 }
1334
1335 static int __devinit snd_rme32_create(struct rme32 * rme32)
1336 {
1337         struct pci_dev *pci = rme32->pci;
1338         int err;
1339
1340         rme32->irq = -1;
1341         spin_lock_init(&rme32->lock);
1342
1343         if ((err = pci_enable_device(pci)) < 0)
1344                 return err;
1345
1346         if ((err = pci_request_regions(pci, "RME32")) < 0)
1347                 return err;
1348         rme32->port = pci_resource_start(rme32->pci, 0);
1349
1350         rme32->iobase = ioremap_nocache(rme32->port, RME32_IO_SIZE);
1351         if (!rme32->iobase) {
1352                 snd_printk(KERN_ERR "unable to remap memory region 0x%lx-0x%lx\n",
1353                            rme32->port, rme32->port + RME32_IO_SIZE - 1);
1354                 return -ENOMEM;
1355         }
1356
1357         if (request_irq(pci->irq, snd_rme32_interrupt, IRQF_SHARED,
1358                         KBUILD_MODNAME, rme32)) {
1359                 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
1360                 return -EBUSY;
1361         }
1362         rme32->irq = pci->irq;
1363
1364         /* read the card's revision number */
1365         pci_read_config_byte(pci, 8, &rme32->rev);
1366
1367         /* set up ALSA pcm device for S/PDIF */
1368         if ((err = snd_pcm_new(rme32->card, "Digi32 IEC958", 0, 1, 1, &rme32->spdif_pcm)) < 0) {
1369                 return err;
1370         }
1371         rme32->spdif_pcm->private_data = rme32;
1372         rme32->spdif_pcm->private_free = snd_rme32_free_spdif_pcm;
1373         strcpy(rme32->spdif_pcm->name, "Digi32 IEC958");
1374         if (rme32->fullduplex_mode) {
1375                 snd_pcm_set_ops(rme32->spdif_pcm, SNDRV_PCM_STREAM_PLAYBACK,
1376                                 &snd_rme32_playback_spdif_fd_ops);
1377                 snd_pcm_set_ops(rme32->spdif_pcm, SNDRV_PCM_STREAM_CAPTURE,
1378                                 &snd_rme32_capture_spdif_fd_ops);
1379                 snd_pcm_lib_preallocate_pages_for_all(rme32->spdif_pcm, SNDRV_DMA_TYPE_CONTINUOUS,
1380                                                       snd_dma_continuous_data(GFP_KERNEL),
1381                                                       0, RME32_MID_BUFFER_SIZE);
1382                 rme32->spdif_pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
1383         } else {
1384                 snd_pcm_set_ops(rme32->spdif_pcm, SNDRV_PCM_STREAM_PLAYBACK,
1385                                 &snd_rme32_playback_spdif_ops);
1386                 snd_pcm_set_ops(rme32->spdif_pcm, SNDRV_PCM_STREAM_CAPTURE,
1387                                 &snd_rme32_capture_spdif_ops);
1388                 rme32->spdif_pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
1389         }
1390
1391         /* set up ALSA pcm device for ADAT */
1392         if ((pci->device == PCI_DEVICE_ID_RME_DIGI32) ||
1393             (pci->device == PCI_DEVICE_ID_RME_DIGI32_PRO)) {
1394                 /* ADAT is not available on DIGI32 and DIGI32 Pro */
1395                 rme32->adat_pcm = NULL;
1396         }
1397         else {
1398                 if ((err = snd_pcm_new(rme32->card, "Digi32 ADAT", 1,
1399                                        1, 1, &rme32->adat_pcm)) < 0)
1400                 {
1401                         return err;
1402                 }
1403                 rme32->adat_pcm->private_data = rme32;
1404                 rme32->adat_pcm->private_free = snd_rme32_free_adat_pcm;
1405                 strcpy(rme32->adat_pcm->name, "Digi32 ADAT");
1406                 if (rme32->fullduplex_mode) {
1407                         snd_pcm_set_ops(rme32->adat_pcm, SNDRV_PCM_STREAM_PLAYBACK,
1408                                         &snd_rme32_playback_adat_fd_ops);
1409                         snd_pcm_set_ops(rme32->adat_pcm, SNDRV_PCM_STREAM_CAPTURE,
1410                                         &snd_rme32_capture_adat_fd_ops);
1411                         snd_pcm_lib_preallocate_pages_for_all(rme32->adat_pcm, SNDRV_DMA_TYPE_CONTINUOUS,
1412                                                               snd_dma_continuous_data(GFP_KERNEL),
1413                                                               0, RME32_MID_BUFFER_SIZE);
1414                         rme32->adat_pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
1415                 } else {
1416                         snd_pcm_set_ops(rme32->adat_pcm, SNDRV_PCM_STREAM_PLAYBACK,
1417                                         &snd_rme32_playback_adat_ops);
1418                         snd_pcm_set_ops(rme32->adat_pcm, SNDRV_PCM_STREAM_CAPTURE,
1419                                         &snd_rme32_capture_adat_ops);
1420                         rme32->adat_pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
1421                 }
1422         }
1423
1424
1425         rme32->playback_periodsize = 0;
1426         rme32->capture_periodsize = 0;
1427
1428         /* make sure playback/capture is stopped, if by some reason active */
1429         snd_rme32_pcm_stop(rme32, 0);
1430
1431         /* reset DAC */
1432         snd_rme32_reset_dac(rme32);
1433
1434         /* reset buffer pointer */
1435         writel(0, rme32->iobase + RME32_IO_RESET_POS);
1436
1437         /* set default values in registers */
1438         rme32->wcreg = RME32_WCR_SEL |   /* normal playback */
1439                 RME32_WCR_INP_0 | /* input select */
1440                 RME32_WCR_MUTE;  /* muting on */
1441         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
1442
1443
1444         /* init switch interface */
1445         if ((err = snd_rme32_create_switches(rme32->card, rme32)) < 0) {
1446                 return err;
1447         }
1448
1449         /* init proc interface */
1450         snd_rme32_proc_init(rme32);
1451
1452         rme32->capture_substream = NULL;
1453         rme32->playback_substream = NULL;
1454
1455         return 0;
1456 }
1457
1458 /*
1459  * proc interface
1460  */
1461
1462 static void
1463 snd_rme32_proc_read(struct snd_info_entry * entry, struct snd_info_buffer *buffer)
1464 {
1465         int n;
1466         struct rme32 *rme32 = (struct rme32 *) entry->private_data;
1467
1468         rme32->rcreg = readl(rme32->iobase + RME32_IO_CONTROL_REGISTER);
1469
1470         snd_iprintf(buffer, rme32->card->longname);
1471         snd_iprintf(buffer, " (index #%d)\n", rme32->card->number + 1);
1472
1473         snd_iprintf(buffer, "\nGeneral settings\n");
1474         if (rme32->fullduplex_mode)
1475                 snd_iprintf(buffer, "  Full-duplex mode\n");
1476         else
1477                 snd_iprintf(buffer, "  Half-duplex mode\n");
1478         if (RME32_PRO_WITH_8414(rme32)) {
1479                 snd_iprintf(buffer, "  receiver: CS8414\n");
1480         } else {
1481                 snd_iprintf(buffer, "  receiver: CS8412\n");
1482         }
1483         if (rme32->wcreg & RME32_WCR_MODE24) {
1484                 snd_iprintf(buffer, "  format: 24 bit");
1485         } else {
1486                 snd_iprintf(buffer, "  format: 16 bit");
1487         }
1488         if (rme32->wcreg & RME32_WCR_MONO) {
1489                 snd_iprintf(buffer, ", Mono\n");
1490         } else {
1491                 snd_iprintf(buffer, ", Stereo\n");
1492         }
1493
1494         snd_iprintf(buffer, "\nInput settings\n");
1495         switch (snd_rme32_getinputtype(rme32)) {
1496         case RME32_INPUT_OPTICAL:
1497                 snd_iprintf(buffer, "  input: optical");
1498                 break;
1499         case RME32_INPUT_COAXIAL:
1500                 snd_iprintf(buffer, "  input: coaxial");
1501                 break;
1502         case RME32_INPUT_INTERNAL:
1503                 snd_iprintf(buffer, "  input: internal");
1504                 break;
1505         case RME32_INPUT_XLR:
1506                 snd_iprintf(buffer, "  input: XLR");
1507                 break;
1508         }
1509         if (snd_rme32_capture_getrate(rme32, &n) < 0) {
1510                 snd_iprintf(buffer, "\n  sample rate: no valid signal\n");
1511         } else {
1512                 if (n) {
1513                         snd_iprintf(buffer, " (8 channels)\n");
1514                 } else {
1515                         snd_iprintf(buffer, " (2 channels)\n");
1516                 }
1517                 snd_iprintf(buffer, "  sample rate: %d Hz\n",
1518                             snd_rme32_capture_getrate(rme32, &n));
1519         }
1520
1521         snd_iprintf(buffer, "\nOutput settings\n");
1522         if (rme32->wcreg & RME32_WCR_SEL) {
1523                 snd_iprintf(buffer, "  output signal: normal playback");
1524         } else {
1525                 snd_iprintf(buffer, "  output signal: same as input");
1526         }
1527         if (rme32->wcreg & RME32_WCR_MUTE) {
1528                 snd_iprintf(buffer, " (muted)\n");
1529         } else {
1530                 snd_iprintf(buffer, "\n");
1531         }
1532
1533         /* master output frequency */
1534         if (!
1535             ((!(rme32->wcreg & RME32_WCR_FREQ_0))
1536              && (!(rme32->wcreg & RME32_WCR_FREQ_1)))) {
1537                 snd_iprintf(buffer, "  sample rate: %d Hz\n",
1538                             snd_rme32_playback_getrate(rme32));
1539         }
1540         if (rme32->rcreg & RME32_RCR_KMODE) {
1541                 snd_iprintf(buffer, "  sample clock source: AutoSync\n");
1542         } else {
1543                 snd_iprintf(buffer, "  sample clock source: Internal\n");
1544         }
1545         if (rme32->wcreg & RME32_WCR_PRO) {
1546                 snd_iprintf(buffer, "  format: AES/EBU (professional)\n");
1547         } else {
1548                 snd_iprintf(buffer, "  format: IEC958 (consumer)\n");
1549         }
1550         if (rme32->wcreg & RME32_WCR_EMP) {
1551                 snd_iprintf(buffer, "  emphasis: on\n");
1552         } else {
1553                 snd_iprintf(buffer, "  emphasis: off\n");
1554         }
1555 }
1556
1557 static void __devinit snd_rme32_proc_init(struct rme32 * rme32)
1558 {
1559         struct snd_info_entry *entry;
1560
1561         if (! snd_card_proc_new(rme32->card, "rme32", &entry))
1562                 snd_info_set_text_ops(entry, rme32, snd_rme32_proc_read);
1563 }
1564
1565 /*
1566  * control interface
1567  */
1568
1569 #define snd_rme32_info_loopback_control         snd_ctl_boolean_mono_info
1570
1571 static int
1572 snd_rme32_get_loopback_control(struct snd_kcontrol *kcontrol,
1573                                struct snd_ctl_elem_value *ucontrol)
1574 {
1575         struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1576
1577         spin_lock_irq(&rme32->lock);
1578         ucontrol->value.integer.value[0] =
1579             rme32->wcreg & RME32_WCR_SEL ? 0 : 1;
1580         spin_unlock_irq(&rme32->lock);
1581         return 0;
1582 }
1583 static int
1584 snd_rme32_put_loopback_control(struct snd_kcontrol *kcontrol,
1585                                struct snd_ctl_elem_value *ucontrol)
1586 {
1587         struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1588         unsigned int val;
1589         int change;
1590
1591         val = ucontrol->value.integer.value[0] ? 0 : RME32_WCR_SEL;
1592         spin_lock_irq(&rme32->lock);
1593         val = (rme32->wcreg & ~RME32_WCR_SEL) | val;
1594         change = val != rme32->wcreg;
1595         if (ucontrol->value.integer.value[0])
1596                 val &= ~RME32_WCR_MUTE;
1597         else
1598                 val |= RME32_WCR_MUTE;
1599         rme32->wcreg = val;
1600         writel(val, rme32->iobase + RME32_IO_CONTROL_REGISTER);
1601         spin_unlock_irq(&rme32->lock);
1602         return change;
1603 }
1604
1605 static int
1606 snd_rme32_info_inputtype_control(struct snd_kcontrol *kcontrol,
1607                                  struct snd_ctl_elem_info *uinfo)
1608 {
1609         struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1610         static char *texts[4] = { "Optical", "Coaxial", "Internal", "XLR" };
1611
1612         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1613         uinfo->count = 1;
1614         switch (rme32->pci->device) {
1615         case PCI_DEVICE_ID_RME_DIGI32:
1616         case PCI_DEVICE_ID_RME_DIGI32_8:
1617                 uinfo->value.enumerated.items = 3;
1618                 break;
1619         case PCI_DEVICE_ID_RME_DIGI32_PRO:
1620                 uinfo->value.enumerated.items = 4;
1621                 break;
1622         default:
1623                 snd_BUG();
1624                 break;
1625         }
1626         if (uinfo->value.enumerated.item >
1627             uinfo->value.enumerated.items - 1) {
1628                 uinfo->value.enumerated.item =
1629                     uinfo->value.enumerated.items - 1;
1630         }
1631         strcpy(uinfo->value.enumerated.name,
1632                texts[uinfo->value.enumerated.item]);
1633         return 0;
1634 }
1635 static int
1636 snd_rme32_get_inputtype_control(struct snd_kcontrol *kcontrol,
1637                                 struct snd_ctl_elem_value *ucontrol)
1638 {
1639         struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1640         unsigned int items = 3;
1641
1642         spin_lock_irq(&rme32->lock);
1643         ucontrol->value.enumerated.item[0] = snd_rme32_getinputtype(rme32);
1644
1645         switch (rme32->pci->device) {
1646         case PCI_DEVICE_ID_RME_DIGI32:
1647         case PCI_DEVICE_ID_RME_DIGI32_8:
1648                 items = 3;
1649                 break;
1650         case PCI_DEVICE_ID_RME_DIGI32_PRO:
1651                 items = 4;
1652                 break;
1653         default:
1654                 snd_BUG();
1655                 break;
1656         }
1657         if (ucontrol->value.enumerated.item[0] >= items) {
1658                 ucontrol->value.enumerated.item[0] = items - 1;
1659         }
1660
1661         spin_unlock_irq(&rme32->lock);
1662         return 0;
1663 }
1664 static int
1665 snd_rme32_put_inputtype_control(struct snd_kcontrol *kcontrol,
1666                                 struct snd_ctl_elem_value *ucontrol)
1667 {
1668         struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1669         unsigned int val;
1670         int change, items = 3;
1671
1672         switch (rme32->pci->device) {
1673         case PCI_DEVICE_ID_RME_DIGI32:
1674         case PCI_DEVICE_ID_RME_DIGI32_8:
1675                 items = 3;
1676                 break;
1677         case PCI_DEVICE_ID_RME_DIGI32_PRO:
1678                 items = 4;
1679                 break;
1680         default:
1681                 snd_BUG();
1682                 break;
1683         }
1684         val = ucontrol->value.enumerated.item[0] % items;
1685
1686         spin_lock_irq(&rme32->lock);
1687         change = val != (unsigned int)snd_rme32_getinputtype(rme32);
1688         snd_rme32_setinputtype(rme32, val);
1689         spin_unlock_irq(&rme32->lock);
1690         return change;
1691 }
1692
1693 static int
1694 snd_rme32_info_clockmode_control(struct snd_kcontrol *kcontrol,
1695                                  struct snd_ctl_elem_info *uinfo)
1696 {
1697         static char *texts[4] = { "AutoSync",
1698                                   "Internal 32.0kHz",
1699                                   "Internal 44.1kHz",
1700                                   "Internal 48.0kHz" };
1701
1702         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1703         uinfo->count = 1;
1704         uinfo->value.enumerated.items = 4;
1705         if (uinfo->value.enumerated.item > 3) {
1706                 uinfo->value.enumerated.item = 3;
1707         }
1708         strcpy(uinfo->value.enumerated.name,
1709                texts[uinfo->value.enumerated.item]);
1710         return 0;
1711 }
1712 static int
1713 snd_rme32_get_clockmode_control(struct snd_kcontrol *kcontrol,
1714                                 struct snd_ctl_elem_value *ucontrol)
1715 {
1716         struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1717
1718         spin_lock_irq(&rme32->lock);
1719         ucontrol->value.enumerated.item[0] = snd_rme32_getclockmode(rme32);
1720         spin_unlock_irq(&rme32->lock);
1721         return 0;
1722 }
1723 static int
1724 snd_rme32_put_clockmode_control(struct snd_kcontrol *kcontrol,
1725                                 struct snd_ctl_elem_value *ucontrol)
1726 {
1727         struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1728         unsigned int val;
1729         int change;
1730
1731         val = ucontrol->value.enumerated.item[0] % 3;
1732         spin_lock_irq(&rme32->lock);
1733         change = val != (unsigned int)snd_rme32_getclockmode(rme32);
1734         snd_rme32_setclockmode(rme32, val);
1735         spin_unlock_irq(&rme32->lock);
1736         return change;
1737 }
1738
1739 static u32 snd_rme32_convert_from_aes(struct snd_aes_iec958 * aes)
1740 {
1741         u32 val = 0;
1742         val |= (aes->status[0] & IEC958_AES0_PROFESSIONAL) ? RME32_WCR_PRO : 0;
1743         if (val & RME32_WCR_PRO)
1744                 val |= (aes->status[0] & IEC958_AES0_PRO_EMPHASIS_5015) ? RME32_WCR_EMP : 0;
1745         else
1746                 val |= (aes->status[0] & IEC958_AES0_CON_EMPHASIS_5015) ? RME32_WCR_EMP : 0;
1747         return val;
1748 }
1749
1750 static void snd_rme32_convert_to_aes(struct snd_aes_iec958 * aes, u32 val)
1751 {
1752         aes->status[0] = ((val & RME32_WCR_PRO) ? IEC958_AES0_PROFESSIONAL : 0);
1753         if (val & RME32_WCR_PRO)
1754                 aes->status[0] |= (val & RME32_WCR_EMP) ? IEC958_AES0_PRO_EMPHASIS_5015 : 0;
1755         else
1756                 aes->status[0] |= (val & RME32_WCR_EMP) ? IEC958_AES0_CON_EMPHASIS_5015 : 0;
1757 }
1758
1759 static int snd_rme32_control_spdif_info(struct snd_kcontrol *kcontrol,
1760                                         struct snd_ctl_elem_info *uinfo)
1761 {
1762         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1763         uinfo->count = 1;
1764         return 0;
1765 }
1766
1767 static int snd_rme32_control_spdif_get(struct snd_kcontrol *kcontrol,
1768                                        struct snd_ctl_elem_value *ucontrol)
1769 {
1770         struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1771
1772         snd_rme32_convert_to_aes(&ucontrol->value.iec958,
1773                                  rme32->wcreg_spdif);
1774         return 0;
1775 }
1776
1777 static int snd_rme32_control_spdif_put(struct snd_kcontrol *kcontrol,
1778                                        struct snd_ctl_elem_value *ucontrol)
1779 {
1780         struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1781         int change;
1782         u32 val;
1783
1784         val = snd_rme32_convert_from_aes(&ucontrol->value.iec958);
1785         spin_lock_irq(&rme32->lock);
1786         change = val != rme32->wcreg_spdif;
1787         rme32->wcreg_spdif = val;
1788         spin_unlock_irq(&rme32->lock);
1789         return change;
1790 }
1791
1792 static int snd_rme32_control_spdif_stream_info(struct snd_kcontrol *kcontrol,
1793                                                struct snd_ctl_elem_info *uinfo)
1794 {
1795         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1796         uinfo->count = 1;
1797         return 0;
1798 }
1799
1800 static int snd_rme32_control_spdif_stream_get(struct snd_kcontrol *kcontrol,
1801                                               struct snd_ctl_elem_value *
1802                                               ucontrol)
1803 {
1804         struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1805
1806         snd_rme32_convert_to_aes(&ucontrol->value.iec958,
1807                                  rme32->wcreg_spdif_stream);
1808         return 0;
1809 }
1810
1811 static int snd_rme32_control_spdif_stream_put(struct snd_kcontrol *kcontrol,
1812                                               struct snd_ctl_elem_value *
1813                                               ucontrol)
1814 {
1815         struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1816         int change;
1817         u32 val;
1818
1819         val = snd_rme32_convert_from_aes(&ucontrol->value.iec958);
1820         spin_lock_irq(&rme32->lock);
1821         change = val != rme32->wcreg_spdif_stream;
1822         rme32->wcreg_spdif_stream = val;
1823         rme32->wcreg &= ~(RME32_WCR_PRO | RME32_WCR_EMP);
1824         rme32->wcreg |= val;
1825         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
1826         spin_unlock_irq(&rme32->lock);
1827         return change;
1828 }
1829
1830 static int snd_rme32_control_spdif_mask_info(struct snd_kcontrol *kcontrol,
1831                                              struct snd_ctl_elem_info *uinfo)
1832 {
1833         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1834         uinfo->count = 1;
1835         return 0;
1836 }
1837
1838 static int snd_rme32_control_spdif_mask_get(struct snd_kcontrol *kcontrol,
1839                                             struct snd_ctl_elem_value *
1840                                             ucontrol)
1841 {
1842         ucontrol->value.iec958.status[0] = kcontrol->private_value;
1843         return 0;
1844 }
1845
1846 static struct snd_kcontrol_new snd_rme32_controls[] = {
1847         {
1848                 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1849                 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
1850                 .info = snd_rme32_control_spdif_info,
1851                 .get =  snd_rme32_control_spdif_get,
1852                 .put =  snd_rme32_control_spdif_put
1853         },
1854         {
1855                 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE,
1856                 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1857                 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, PCM_STREAM),
1858                 .info = snd_rme32_control_spdif_stream_info,
1859                 .get =  snd_rme32_control_spdif_stream_get,
1860                 .put =  snd_rme32_control_spdif_stream_put
1861         },
1862         {
1863                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1864                 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1865                 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, CON_MASK),
1866                 .info = snd_rme32_control_spdif_mask_info,
1867                 .get =  snd_rme32_control_spdif_mask_get,
1868                 .private_value = IEC958_AES0_PROFESSIONAL | IEC958_AES0_CON_EMPHASIS
1869         },
1870         {
1871                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1872                 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1873                 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, PRO_MASK),
1874                 .info = snd_rme32_control_spdif_mask_info,
1875                 .get =  snd_rme32_control_spdif_mask_get,
1876                 .private_value = IEC958_AES0_PROFESSIONAL | IEC958_AES0_PRO_EMPHASIS
1877         },
1878         {
1879                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1880                 .name = "Input Connector",
1881                 .info = snd_rme32_info_inputtype_control,
1882                 .get =  snd_rme32_get_inputtype_control,
1883                 .put =  snd_rme32_put_inputtype_control
1884         },
1885         {
1886                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1887                 .name = "Loopback Input",
1888                 .info = snd_rme32_info_loopback_control,
1889                 .get =  snd_rme32_get_loopback_control,
1890                 .put =  snd_rme32_put_loopback_control
1891         },
1892         {
1893                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1894                 .name = "Sample Clock Source",
1895                 .info = snd_rme32_info_clockmode_control,
1896                 .get =  snd_rme32_get_clockmode_control,
1897                 .put =  snd_rme32_put_clockmode_control
1898         }
1899 };
1900
1901 static int snd_rme32_create_switches(struct snd_card *card, struct rme32 * rme32)
1902 {
1903         int idx, err;
1904         struct snd_kcontrol *kctl;
1905
1906         for (idx = 0; idx < (int)ARRAY_SIZE(snd_rme32_controls); idx++) {
1907                 if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_rme32_controls[idx], rme32))) < 0)
1908                         return err;
1909                 if (idx == 1)   /* IEC958 (S/PDIF) Stream */
1910                         rme32->spdif_ctl = kctl;
1911         }
1912
1913         return 0;
1914 }
1915
1916 /*
1917  * Card initialisation
1918  */
1919
1920 static void snd_rme32_card_free(struct snd_card *card)
1921 {
1922         snd_rme32_free(card->private_data);
1923 }
1924
1925 static int __devinit
1926 snd_rme32_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
1927 {
1928         static int dev;
1929         struct rme32 *rme32;
1930         struct snd_card *card;
1931         int err;
1932
1933         if (dev >= SNDRV_CARDS) {
1934                 return -ENODEV;
1935         }
1936         if (!enable[dev]) {
1937                 dev++;
1938                 return -ENOENT;
1939         }
1940
1941         err = snd_card_create(index[dev], id[dev], THIS_MODULE,
1942                               sizeof(struct rme32), &card);
1943         if (err < 0)
1944                 return err;
1945         card->private_free = snd_rme32_card_free;
1946         rme32 = (struct rme32 *) card->private_data;
1947         rme32->card = card;
1948         rme32->pci = pci;
1949         snd_card_set_dev(card, &pci->dev);
1950         if (fullduplex[dev])
1951                 rme32->fullduplex_mode = 1;
1952         if ((err = snd_rme32_create(rme32)) < 0) {
1953                 snd_card_free(card);
1954                 return err;
1955         }
1956
1957         strcpy(card->driver, "Digi32");
1958         switch (rme32->pci->device) {
1959         case PCI_DEVICE_ID_RME_DIGI32:
1960                 strcpy(card->shortname, "RME Digi32");
1961                 break;
1962         case PCI_DEVICE_ID_RME_DIGI32_8:
1963                 strcpy(card->shortname, "RME Digi32/8");
1964                 break;
1965         case PCI_DEVICE_ID_RME_DIGI32_PRO:
1966                 strcpy(card->shortname, "RME Digi32 PRO");
1967                 break;
1968         }
1969         sprintf(card->longname, "%s (Rev. %d) at 0x%lx, irq %d",
1970                 card->shortname, rme32->rev, rme32->port, rme32->irq);
1971
1972         if ((err = snd_card_register(card)) < 0) {
1973                 snd_card_free(card);
1974                 return err;
1975         }
1976         pci_set_drvdata(pci, card);
1977         dev++;
1978         return 0;
1979 }
1980
1981 static void __devexit snd_rme32_remove(struct pci_dev *pci)
1982 {
1983         snd_card_free(pci_get_drvdata(pci));
1984         pci_set_drvdata(pci, NULL);
1985 }
1986
1987 static struct pci_driver driver = {
1988         .name =         KBUILD_MODNAME,
1989         .id_table =     snd_rme32_ids,
1990         .probe =        snd_rme32_probe,
1991         .remove =       __devexit_p(snd_rme32_remove),
1992 };
1993
1994 static int __init alsa_card_rme32_init(void)
1995 {
1996         return pci_register_driver(&driver);
1997 }
1998
1999 static void __exit alsa_card_rme32_exit(void)
2000 {
2001         pci_unregister_driver(&driver);
2002 }
2003
2004 module_init(alsa_card_rme32_init)
2005 module_exit(alsa_card_rme32_exit)