git.oblomov.eu Git - linux-2.6/blob - 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 <sound/driver.h>
  73 #include <linux/delay.h>
  74 #include <linux/init.h>
  75 #include <linux/interrupt.h>
  76 #include <linux/pci.h>
  77 #include <linux/slab.h>
  78 #include <linux/moduleparam.h>
  79
  80 #include <sound/core.h>
  81 #include <sound/info.h>
  82 #include <sound/control.h>
  83 #include <sound/pcm.h>
  84 #include <sound/pcm_params.h>
  85 #include <sound/pcm-indirect.h>
  86 #include <sound/asoundef.h>
  87 #include <sound/initval.h>
  88
  89 #include <asm/io.h>
  90
  91 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  92 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  93 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;      /* Enable this card */
  94 static int fullduplex[SNDRV_CARDS]; // = {[0 ... (SNDRV_CARDS - 1)] = 1};
  95
  96 module_param_array(index, int, NULL, 0444);
  97 MODULE_PARM_DESC(index, "Index value for RME Digi32 soundcard.");
  98 module_param_array(id, charp, NULL, 0444);
  99 MODULE_PARM_DESC(id, "ID string for RME Digi32 soundcard.");
 100 module_param_array(enable, bool, NULL, 0444);
 101 MODULE_PARM_DESC(enable, "Enable RME Digi32 soundcard.");
 102 module_param_array(fullduplex, bool, NULL, 0444);
 103 MODULE_PARM_DESC(fullduplex, "Support full-duplex mode.");
 104 MODULE_AUTHOR("Martin Langer <martin-langer@gmx.de>, Pilo Chambert <pilo.c@wanadoo.fr>");
 105 MODULE_DESCRIPTION("RME Digi32, Digi32/8, Digi32 PRO");
 106 MODULE_LICENSE("GPL");
 107 MODULE_SUPPORTED_DEVICE("{{RME,Digi32}," "{RME,Digi32/8}," "{RME,Digi32 PRO}}");
 108
 109 /* Defines for RME Digi32 series */
 110 #define RME32_SPDIF_NCHANNELS 2
 111
 112 /* Playback and capture buffer size */
 113 #define RME32_BUFFER_SIZE 0x20000
 114
 115 /* IO area size */
 116 #define RME32_IO_SIZE 0x30000
 117
 118 /* IO area offsets */
 119 #define RME32_IO_DATA_BUFFER        0x0
 120 #define RME32_IO_CONTROL_REGISTER   0x20000
 121 #define RME32_IO_GET_POS            0x20000
 122 #define RME32_IO_CONFIRM_ACTION_IRQ 0x20004
 123 #define RME32_IO_RESET_POS          0x20100
 124
 125 /* Write control register bits */
 126 #define RME32_WCR_START     (1 << 0)    /* startbit */
 127 #define RME32_WCR_MONO      (1 << 1)    /* 0=stereo, 1=mono
 128                                            Setting the whole card to mono
 129                                            doesn't seem to be very useful.
 130                                            A software-solution can handle
 131                                            full-duplex with one direction in
 132                                            stereo and the other way in mono.
 133                                            So, the hardware should work all
 134                                            the time in stereo! */
 135 #define RME32_WCR_MODE24    (1 << 2)    /* 0=16bit, 1=32bit */
 136 #define RME32_WCR_SEL       (1 << 3)    /* 0=input on output, 1=normal playback/capture */
 137 #define RME32_WCR_FREQ_0    (1 << 4)    /* frequency (play) */
 138 #define RME32_WCR_FREQ_1    (1 << 5)
 139 #define RME32_WCR_INP_0     (1 << 6)    /* input switch */
 140 #define RME32_WCR_INP_1     (1 << 7)
 141 #define RME32_WCR_RESET     (1 << 8)    /* Reset address */
 142 #define RME32_WCR_MUTE      (1 << 9)    /* digital mute for output */
 143 #define RME32_WCR_PRO       (1 << 10)   /* 1=professional, 0=consumer */
 144 #define RME32_WCR_DS_BM     (1 << 11)   /* 1=DoubleSpeed (only PRO-Version); 1=BlockMode (only Adat-Version) */
 145 #define RME32_WCR_ADAT      (1 << 12)   /* Adat Mode (only Adat-Version) */
 146 #define RME32_WCR_AUTOSYNC  (1 << 13)   /* AutoSync */
 147 #define RME32_WCR_PD        (1 << 14)   /* DAC Reset (only PRO-Version) */
 148 #define RME32_WCR_EMP       (1 << 15)   /* 1=Emphasis on (only PRO-Version) */
 149
 150 #define RME32_WCR_BITPOS_FREQ_0 4
 151 #define RME32_WCR_BITPOS_FREQ_1 5
 152 #define RME32_WCR_BITPOS_INP_0 6
 153 #define RME32_WCR_BITPOS_INP_1 7
 154
 155 /* Read control register bits */
 156 #define RME32_RCR_AUDIO_ADDR_MASK 0x1ffff
 157 #define RME32_RCR_LOCK      (1 << 23)   /* 1=locked, 0=not locked */
 158 #define RME32_RCR_ERF       (1 << 26)   /* 1=Error, 0=no Error */
 159 #define RME32_RCR_FREQ_0    (1 << 27)   /* CS841x frequency (record) */
 160 #define RME32_RCR_FREQ_1    (1 << 28)
 161 #define RME32_RCR_FREQ_2    (1 << 29)
 162 #define RME32_RCR_KMODE     (1 << 30)   /* card mode: 1=PLL, 0=quartz */
 163 #define RME32_RCR_IRQ       (1 << 31)   /* interrupt */
 164
 165 #define RME32_RCR_BITPOS_F0 27
 166 #define RME32_RCR_BITPOS_F1 28
 167 #define RME32_RCR_BITPOS_F2 29
 168
 169 /* Input types */
 170 #define RME32_INPUT_OPTICAL 0
 171 #define RME32_INPUT_COAXIAL 1
 172 #define RME32_INPUT_INTERNAL 2
 173 #define RME32_INPUT_XLR 3
 174
 175 /* Clock modes */
 176 #define RME32_CLOCKMODE_SLAVE 0
 177 #define RME32_CLOCKMODE_MASTER_32 1
 178 #define RME32_CLOCKMODE_MASTER_44 2
 179 #define RME32_CLOCKMODE_MASTER_48 3
 180
 181 /* Block sizes in bytes */
 182 #define RME32_BLOCK_SIZE 8192
 183
 184 /* Software intermediate buffer (max) size */
 185 #define RME32_MID_BUFFER_SIZE (1024*1024)
 186
 187 /* Hardware revisions */
 188 #define RME32_32_REVISION 192
 189 #define RME32_328_REVISION_OLD 100
 190 #define RME32_328_REVISION_NEW 101
 191 #define RME32_PRO_REVISION_WITH_8412 192
 192 #define RME32_PRO_REVISION_WITH_8414 150
 193
 194
 195 struct rme32 {
 196         spinlock_t lock;
 197         int irq;
 198         unsigned long port;
 199         void __iomem *iobase;
 200
 201         u32 wcreg;              /* cached write control register value */
 202         u32 wcreg_spdif;        /* S/PDIF setup */
 203         u32 wcreg_spdif_stream; /* S/PDIF setup (temporary) */
 204         u32 rcreg;              /* cached read control register value */
 205
 206         u8 rev;                 /* card revision number */
 207
 208         struct snd_pcm_substream *playback_substream;
 209         struct snd_pcm_substream *capture_substream;
 210
 211         int playback_frlog;     /* log2 of framesize */
 212         int capture_frlog;
 213
 214         size_t playback_periodsize;     /* in bytes, zero if not used */
 215         size_t capture_periodsize;      /* in bytes, zero if not used */
 216
 217         unsigned int fullduplex_mode;
 218         int running;
 219
 220         struct snd_pcm_indirect playback_pcm;
 221         struct snd_pcm_indirect capture_pcm;
 222
 223         struct snd_card *card;
 224         struct snd_pcm *spdif_pcm;
 225         struct snd_pcm *adat_pcm;
 226         struct pci_dev *pci;
 227         struct snd_kcontrol *spdif_ctl;
 228 };
 229
 230 static struct pci_device_id snd_rme32_ids[] __devinitdata = {
 231         {PCI_VENDOR_ID_XILINX_RME, PCI_DEVICE_ID_RME_DIGI32,
 232          PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0,},
 233         {PCI_VENDOR_ID_XILINX_RME, PCI_DEVICE_ID_RME_DIGI32_8,
 234          PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0,},
 235         {PCI_VENDOR_ID_XILINX_RME, PCI_DEVICE_ID_RME_DIGI32_PRO,
 236          PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0,},
 237         {0,}
 238 };
 239
 240 MODULE_DEVICE_TABLE(pci, snd_rme32_ids);
 241
 242 #define RME32_ISWORKING(rme32) ((rme32)->wcreg & RME32_WCR_START)
 243 #define RME32_PRO_WITH_8414(rme32) ((rme32)->pci->device == PCI_DEVICE_ID_RME_DIGI32_PRO && (rme32)->rev == RME32_PRO_REVISION_WITH_8414)
 244
 245 static int snd_rme32_playback_prepare(struct snd_pcm_substream *substream);
 246
 247 static int snd_rme32_capture_prepare(struct snd_pcm_substream *substream);
 248
 249 static int snd_rme32_pcm_trigger(struct snd_pcm_substream *substream, int cmd);
 250
 251 static void snd_rme32_proc_init(struct rme32 * rme32);
 252
 253 static int snd_rme32_create_switches(struct snd_card *card, struct rme32 * rme32);
 254
 255 static inline unsigned int snd_rme32_pcm_byteptr(struct rme32 * rme32)
 256 {
 257         return (readl(rme32->iobase + RME32_IO_GET_POS)
 258                 & RME32_RCR_AUDIO_ADDR_MASK);
 259 }
 260
 261 static int snd_rme32_ratecode(int rate)
 262 {
 263         switch (rate) {
 264         case 32000: return SNDRV_PCM_RATE_32000;
 265         case 44100: return SNDRV_PCM_RATE_44100;
 266         case 48000: return SNDRV_PCM_RATE_48000;
 267         case 64000: return SNDRV_PCM_RATE_64000;
 268         case 88200: return SNDRV_PCM_RATE_88200;
 269         case 96000: return SNDRV_PCM_RATE_96000;
 270         }
 271         return 0;
 272 }
 273
 274 /* silence callback for halfduplex mode */
 275 static int snd_rme32_playback_silence(struct snd_pcm_substream *substream, int channel, /* not used (interleaved data) */
 276                                       snd_pcm_uframes_t pos,
 277                                       snd_pcm_uframes_t count)
 278 {
 279         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
 280         count <<= rme32->playback_frlog;
 281         pos <<= rme32->playback_frlog;
 282         memset_io(rme32->iobase + RME32_IO_DATA_BUFFER + pos, 0, count);
 283         return 0;
 284 }
 285
 286 /* copy callback for halfduplex mode */
 287 static int snd_rme32_playback_copy(struct snd_pcm_substream *substream, int channel,    /* not used (interleaved data) */
 288                                    snd_pcm_uframes_t pos,
 289                                    void __user *src, snd_pcm_uframes_t count)
 290 {
 291         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
 292         count <<= rme32->playback_frlog;
 293         pos <<= rme32->playback_frlog;
 294         if (copy_from_user_toio(rme32->iobase + RME32_IO_DATA_BUFFER + pos,
 295                             src, count))
 296                 return -EFAULT;
 297         return 0;
 298 }
 299
 300 /* copy callback for halfduplex mode */
 301 static int snd_rme32_capture_copy(struct snd_pcm_substream *substream, int channel,     /* not used (interleaved data) */
 302                                   snd_pcm_uframes_t pos,
 303                                   void __user *dst, snd_pcm_uframes_t count)
 304 {
 305         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
 306         count <<= rme32->capture_frlog;
 307         pos <<= rme32->capture_frlog;
 308         if (copy_to_user_fromio(dst,
 309                             rme32->iobase + RME32_IO_DATA_BUFFER + pos,
 310                             count))
 311                 return -EFAULT;
 312         return 0;
 313 }
 314
 315 /*
 316  * SPDIF I/O capabilities (half-duplex mode)
 317  */
 318 static struct snd_pcm_hardware snd_rme32_spdif_info = {
 319         .info =         (SNDRV_PCM_INFO_MMAP_IOMEM |
 320                          SNDRV_PCM_INFO_MMAP_VALID |
 321                          SNDRV_PCM_INFO_INTERLEAVED |
 322                          SNDRV_PCM_INFO_PAUSE |
 323                          SNDRV_PCM_INFO_SYNC_START),
 324         .formats =      (SNDRV_PCM_FMTBIT_S16_LE |
 325                          SNDRV_PCM_FMTBIT_S32_LE),
 326         .rates =        (SNDRV_PCM_RATE_32000 |
 327                          SNDRV_PCM_RATE_44100 |
 328                          SNDRV_PCM_RATE_48000),
 329         .rate_min =     32000,
 330         .rate_max =     48000,
 331         .channels_min = 2,
 332         .channels_max = 2,
 333         .buffer_bytes_max = RME32_BUFFER_SIZE,
 334         .period_bytes_min = RME32_BLOCK_SIZE,
 335         .period_bytes_max = RME32_BLOCK_SIZE,
 336         .periods_min =  RME32_BUFFER_SIZE / RME32_BLOCK_SIZE,
 337         .periods_max =  RME32_BUFFER_SIZE / RME32_BLOCK_SIZE,
 338         .fifo_size =    0,
 339 };
 340
 341 /*
 342  * ADAT I/O capabilities (half-duplex mode)
 343  */
 344 static struct snd_pcm_hardware snd_rme32_adat_info =
 345 {
 346         .info =              (SNDRV_PCM_INFO_MMAP_IOMEM |
 347                               SNDRV_PCM_INFO_MMAP_VALID |
 348                               SNDRV_PCM_INFO_INTERLEAVED |
 349                               SNDRV_PCM_INFO_PAUSE |
 350                               SNDRV_PCM_INFO_SYNC_START),
 351         .formats=            SNDRV_PCM_FMTBIT_S16_LE,
 352         .rates =             (SNDRV_PCM_RATE_44100 |
 353                               SNDRV_PCM_RATE_48000),
 354         .rate_min =          44100,
 355         .rate_max =          48000,
 356         .channels_min =      8,
 357         .channels_max =      8,
 358         .buffer_bytes_max =  RME32_BUFFER_SIZE,
 359         .period_bytes_min =  RME32_BLOCK_SIZE,
 360         .period_bytes_max =  RME32_BLOCK_SIZE,
 361         .periods_min =      RME32_BUFFER_SIZE / RME32_BLOCK_SIZE,
 362         .periods_max =      RME32_BUFFER_SIZE / RME32_BLOCK_SIZE,
 363         .fifo_size =        0,
 364 };
 365
 366 /*
 367  * SPDIF I/O capabilities (full-duplex mode)
 368  */
 369 static struct snd_pcm_hardware snd_rme32_spdif_fd_info = {
 370         .info =         (SNDRV_PCM_INFO_MMAP |
 371                          SNDRV_PCM_INFO_MMAP_VALID |
 372                          SNDRV_PCM_INFO_INTERLEAVED |
 373                          SNDRV_PCM_INFO_PAUSE |
 374                          SNDRV_PCM_INFO_SYNC_START),
 375         .formats =      (SNDRV_PCM_FMTBIT_S16_LE |
 376                          SNDRV_PCM_FMTBIT_S32_LE),
 377         .rates =        (SNDRV_PCM_RATE_32000 |
 378                          SNDRV_PCM_RATE_44100 |
 379                          SNDRV_PCM_RATE_48000),
 380         .rate_min =     32000,
 381         .rate_max =     48000,
 382         .channels_min = 2,
 383         .channels_max = 2,
 384         .buffer_bytes_max = RME32_MID_BUFFER_SIZE,
 385         .period_bytes_min = RME32_BLOCK_SIZE,
 386         .period_bytes_max = RME32_BLOCK_SIZE,
 387         .periods_min =  2,
 388         .periods_max =  RME32_MID_BUFFER_SIZE / RME32_BLOCK_SIZE,
 389         .fifo_size =    0,
 390 };
 391
 392 /*
 393  * ADAT I/O capabilities (full-duplex mode)
 394  */
 395 static struct snd_pcm_hardware snd_rme32_adat_fd_info =
 396 {
 397         .info =              (SNDRV_PCM_INFO_MMAP |
 398                               SNDRV_PCM_INFO_MMAP_VALID |
 399                               SNDRV_PCM_INFO_INTERLEAVED |
 400                               SNDRV_PCM_INFO_PAUSE |
 401                               SNDRV_PCM_INFO_SYNC_START),
 402         .formats=            SNDRV_PCM_FMTBIT_S16_LE,
 403         .rates =             (SNDRV_PCM_RATE_44100 |
 404                               SNDRV_PCM_RATE_48000),
 405         .rate_min =          44100,
 406         .rate_max =          48000,
 407         .channels_min =      8,
 408         .channels_max =      8,
 409         .buffer_bytes_max =  RME32_MID_BUFFER_SIZE,
 410         .period_bytes_min =  RME32_BLOCK_SIZE,
 411         .period_bytes_max =  RME32_BLOCK_SIZE,
 412         .periods_min =      2,
 413         .periods_max =      RME32_MID_BUFFER_SIZE / RME32_BLOCK_SIZE,
 414         .fifo_size =        0,
 415 };
 416
 417 static void snd_rme32_reset_dac(struct rme32 *rme32)
 418 {
 419         writel(rme32->wcreg | RME32_WCR_PD,
 420                rme32->iobase + RME32_IO_CONTROL_REGISTER);
 421         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
 422 }
 423
 424 static int snd_rme32_playback_getrate(struct rme32 * rme32)
 425 {
 426         int rate;
 427
 428         rate = ((rme32->wcreg >> RME32_WCR_BITPOS_FREQ_0) & 1) +
 429                (((rme32->wcreg >> RME32_WCR_BITPOS_FREQ_1) & 1) << 1);
 430         switch (rate) {
 431         case 1:
 432                 rate = 32000;
 433                 break;
 434         case 2:
 435                 rate = 44100;
 436                 break;
 437         case 3:
 438                 rate = 48000;
 439                 break;
 440         default:
 441                 return -1;
 442         }
 443         return (rme32->wcreg & RME32_WCR_DS_BM) ? rate << 1 : rate;
 444 }
 445
 446 static int snd_rme32_capture_getrate(struct rme32 * rme32, int *is_adat)
 447 {
 448         int n;
 449
 450         *is_adat = 0;
 451         if (rme32->rcreg & RME32_RCR_LOCK) {
 452                 /* ADAT rate */
 453                 *is_adat = 1;
 454         }
 455         if (rme32->rcreg & RME32_RCR_ERF) {
 456                 return -1;
 457         }
 458
 459         /* S/PDIF rate */
 460         n = ((rme32->rcreg >> RME32_RCR_BITPOS_F0) & 1) +
 461                 (((rme32->rcreg >> RME32_RCR_BITPOS_F1) & 1) << 1) +
 462                 (((rme32->rcreg >> RME32_RCR_BITPOS_F2) & 1) << 2);
 463
 464         if (RME32_PRO_WITH_8414(rme32))
 465                 switch (n) {    /* supporting the CS8414 */
 466                 case 0:
 467                 case 1:
 468                 case 2:
 469                         return -1;
 470                 case 3:
 471                         return 96000;
 472                 case 4:
 473                         return 88200;
 474                 case 5:
 475                         return 48000;
 476                 case 6:
 477                         return 44100;
 478                 case 7:
 479                         return 32000;
 480                 default:
 481                         return -1;
 482                         break;
 483                 }
 484         else
 485                 switch (n) {    /* supporting the CS8412 */
 486                 case 0:
 487                         return -1;
 488                 case 1:
 489                         return 48000;
 490                 case 2:
 491                         return 44100;
 492                 case 3:
 493                         return 32000;
 494                 case 4:
 495                         return 48000;
 496                 case 5:
 497                         return 44100;
 498                 case 6:
 499                         return 44056;
 500                 case 7:
 501                         return 32000;
 502                 default:
 503                         break;
 504                 }
 505         return -1;
 506 }
 507
 508 static int snd_rme32_playback_setrate(struct rme32 * rme32, int rate)
 509 {
 510         int ds;
 511
 512         ds = rme32->wcreg & RME32_WCR_DS_BM;
 513         switch (rate) {
 514         case 32000:
 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 44100:
 520                 rme32->wcreg &= ~RME32_WCR_DS_BM;
 521                 rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_1) &
 522                         ~RME32_WCR_FREQ_0;
 523                 break;
 524         case 48000:
 525                 rme32->wcreg &= ~RME32_WCR_DS_BM;
 526                 rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_0) |
 527                         RME32_WCR_FREQ_1;
 528                 break;
 529         case 64000:
 530                 if (rme32->pci->device != PCI_DEVICE_ID_RME_DIGI32_PRO)
 531                         return -EINVAL;
 532                 rme32->wcreg |= RME32_WCR_DS_BM;
 533                 rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_0) &
 534                         ~RME32_WCR_FREQ_1;
 535                 break;
 536         case 88200:
 537                 if (rme32->pci->device != PCI_DEVICE_ID_RME_DIGI32_PRO)
 538                         return -EINVAL;
 539                 rme32->wcreg |= RME32_WCR_DS_BM;
 540                 rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_1) &
 541                         ~RME32_WCR_FREQ_0;
 542                 break;
 543         case 96000:
 544                 if (rme32->pci->device != PCI_DEVICE_ID_RME_DIGI32_PRO)
 545                         return -EINVAL;
 546                 rme32->wcreg |= RME32_WCR_DS_BM;
 547                 rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_0) |
 548                         RME32_WCR_FREQ_1;
 549                 break;
 550         default:
 551                 return -EINVAL;
 552         }
 553         if ((!ds && rme32->wcreg & RME32_WCR_DS_BM) ||
 554             (ds && !(rme32->wcreg & RME32_WCR_DS_BM)))
 555         {
 556                 /* change to/from double-speed: reset the DAC (if available) */
 557                 snd_rme32_reset_dac(rme32);
 558         } else {
 559                 writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
 560         }
 561         return 0;
 562 }
 563
 564 static int snd_rme32_setclockmode(struct rme32 * rme32, int mode)
 565 {
 566         switch (mode) {
 567         case RME32_CLOCKMODE_SLAVE:
 568                 /* AutoSync */
 569                 rme32->wcreg = (rme32->wcreg & ~RME32_WCR_FREQ_0) &
 570                         ~RME32_WCR_FREQ_1;
 571                 break;
 572         case RME32_CLOCKMODE_MASTER_32:
 573                 /* Internal 32.0kHz */
 574                 rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_0) &
 575                         ~RME32_WCR_FREQ_1;
 576                 break;
 577         case RME32_CLOCKMODE_MASTER_44:
 578                 /* Internal 44.1kHz */
 579                 rme32->wcreg = (rme32->wcreg & ~RME32_WCR_FREQ_0) |
 580                         RME32_WCR_FREQ_1;
 581                 break;
 582         case RME32_CLOCKMODE_MASTER_48:
 583                 /* Internal 48.0kHz */
 584                 rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_0) |
 585                         RME32_WCR_FREQ_1;
 586                 break;
 587         default:
 588                 return -EINVAL;
 589         }
 590         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
 591         return 0;
 592 }
 593
 594 static int snd_rme32_getclockmode(struct rme32 * rme32)
 595 {
 596         return ((rme32->wcreg >> RME32_WCR_BITPOS_FREQ_0) & 1) +
 597             (((rme32->wcreg >> RME32_WCR_BITPOS_FREQ_1) & 1) << 1);
 598 }
 599
 600 static int snd_rme32_setinputtype(struct rme32 * rme32, int type)
 601 {
 602         switch (type) {
 603         case RME32_INPUT_OPTICAL:
 604                 rme32->wcreg = (rme32->wcreg & ~RME32_WCR_INP_0) &
 605                         ~RME32_WCR_INP_1;
 606                 break;
 607         case RME32_INPUT_COAXIAL:
 608                 rme32->wcreg = (rme32->wcreg | RME32_WCR_INP_0) &
 609                         ~RME32_WCR_INP_1;
 610                 break;
 611         case RME32_INPUT_INTERNAL:
 612                 rme32->wcreg = (rme32->wcreg & ~RME32_WCR_INP_0) |
 613                         RME32_WCR_INP_1;
 614                 break;
 615         case RME32_INPUT_XLR:
 616                 rme32->wcreg = (rme32->wcreg | RME32_WCR_INP_0) |
 617                         RME32_WCR_INP_1;
 618                 break;
 619         default:
 620                 return -EINVAL;
 621         }
 622         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
 623         return 0;
 624 }
 625
 626 static int snd_rme32_getinputtype(struct rme32 * rme32)
 627 {
 628         return ((rme32->wcreg >> RME32_WCR_BITPOS_INP_0) & 1) +
 629             (((rme32->wcreg >> RME32_WCR_BITPOS_INP_1) & 1) << 1);
 630 }
 631
 632 static void
 633 snd_rme32_setframelog(struct rme32 * rme32, int n_channels, int is_playback)
 634 {
 635         int frlog;
 636
 637         if (n_channels == 2) {
 638                 frlog = 1;
 639         } else {
 640                 /* assume 8 channels */
 641                 frlog = 3;
 642         }
 643         if (is_playback) {
 644                 frlog += (rme32->wcreg & RME32_WCR_MODE24) ? 2 : 1;
 645                 rme32->playback_frlog = frlog;
 646         } else {
 647                 frlog += (rme32->wcreg & RME32_WCR_MODE24) ? 2 : 1;
 648                 rme32->capture_frlog = frlog;
 649         }
 650 }
 651
 652 static int snd_rme32_setformat(struct rme32 * rme32, int format)
 653 {
 654         switch (format) {
 655         case SNDRV_PCM_FORMAT_S16_LE:
 656                 rme32->wcreg &= ~RME32_WCR_MODE24;
 657                 break;
 658         case SNDRV_PCM_FORMAT_S32_LE:
 659                 rme32->wcreg |= RME32_WCR_MODE24;
 660                 break;
 661         default:
 662                 return -EINVAL;
 663         }
 664         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
 665         return 0;
 666 }
 667
 668 static int
 669 snd_rme32_playback_hw_params(struct snd_pcm_substream *substream,
 670                              struct snd_pcm_hw_params *params)
 671 {
 672         int err, rate, dummy;
 673         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
 674         struct snd_pcm_runtime *runtime = substream->runtime;
 675
 676         if (rme32->fullduplex_mode) {
 677                 err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
 678                 if (err < 0)
 679                         return err;
 680         } else {
 681                 runtime->dma_area = (void __force *)(rme32->iobase +
 682                                                      RME32_IO_DATA_BUFFER);
 683                 runtime->dma_addr = rme32->port + RME32_IO_DATA_BUFFER;
 684                 runtime->dma_bytes = RME32_BUFFER_SIZE;
 685         }
 686
 687         spin_lock_irq(&rme32->lock);
 688         if ((rme32->rcreg & RME32_RCR_KMODE) &&
 689             (rate = snd_rme32_capture_getrate(rme32, &dummy)) > 0) {
 690                 /* AutoSync */
 691                 if ((int)params_rate(params) != rate) {
 692                         spin_unlock_irq(&rme32->lock);
 693                         return -EIO;
 694                 }
 695         } else if ((err = snd_rme32_playback_setrate(rme32, params_rate(params))) < 0) {
 696                 spin_unlock_irq(&rme32->lock);
 697                 return err;
 698         }
 699         if ((err = snd_rme32_setformat(rme32, params_format(params))) < 0) {
 700                 spin_unlock_irq(&rme32->lock);
 701                 return err;
 702         }
 703
 704         snd_rme32_setframelog(rme32, params_channels(params), 1);
 705         if (rme32->capture_periodsize != 0) {
 706                 if (params_period_size(params) << rme32->playback_frlog != rme32->capture_periodsize) {
 707                         spin_unlock_irq(&rme32->lock);
 708                         return -EBUSY;
 709                 }
 710         }
 711         rme32->playback_periodsize = params_period_size(params) << rme32->playback_frlog;
 712         /* S/PDIF setup */
 713         if ((rme32->wcreg & RME32_WCR_ADAT) == 0) {
 714                 rme32->wcreg &= ~(RME32_WCR_PRO | RME32_WCR_EMP);
 715                 rme32->wcreg |= rme32->wcreg_spdif_stream;
 716                 writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
 717         }
 718         spin_unlock_irq(&rme32->lock);
 719
 720         return 0;
 721 }
 722
 723 static int
 724 snd_rme32_capture_hw_params(struct snd_pcm_substream *substream,
 725                             struct snd_pcm_hw_params *params)
 726 {
 727         int err, isadat, rate;
 728         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
 729         struct snd_pcm_runtime *runtime = substream->runtime;
 730
 731         if (rme32->fullduplex_mode) {
 732                 err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
 733                 if (err < 0)
 734                         return err;
 735         } else {
 736                 runtime->dma_area = (void __force *)rme32->iobase +
 737                                         RME32_IO_DATA_BUFFER;
 738                 runtime->dma_addr = rme32->port + RME32_IO_DATA_BUFFER;
 739                 runtime->dma_bytes = RME32_BUFFER_SIZE;
 740         }
 741
 742         spin_lock_irq(&rme32->lock);
 743         /* enable AutoSync for record-preparing */
 744         rme32->wcreg |= RME32_WCR_AUTOSYNC;
 745         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
 746
 747         if ((err = snd_rme32_setformat(rme32, params_format(params))) < 0) {
 748                 spin_unlock_irq(&rme32->lock);
 749                 return err;
 750         }
 751         if ((err = snd_rme32_playback_setrate(rme32, params_rate(params))) < 0) {
 752                 spin_unlock_irq(&rme32->lock);
 753                 return err;
 754         }
 755         if ((rate = snd_rme32_capture_getrate(rme32, &isadat)) > 0) {
 756                 if ((int)params_rate(params) != rate) {
 757                         spin_unlock_irq(&rme32->lock);
 758                         return -EIO;
 759                 }
 760                 if ((isadat && runtime->hw.channels_min == 2) ||
 761                     (!isadat && runtime->hw.channels_min == 8)) {
 762                         spin_unlock_irq(&rme32->lock);
 763                         return -EIO;
 764                 }
 765         }
 766         /* AutoSync off for recording */
 767         rme32->wcreg &= ~RME32_WCR_AUTOSYNC;
 768         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
 769
 770         snd_rme32_setframelog(rme32, params_channels(params), 0);
 771         if (rme32->playback_periodsize != 0) {
 772                 if (params_period_size(params) << rme32->capture_frlog !=
 773                     rme32->playback_periodsize) {
 774                         spin_unlock_irq(&rme32->lock);
 775                         return -EBUSY;
 776                 }
 777         }
 778         rme32->capture_periodsize =
 779             params_period_size(params) << rme32->capture_frlog;
 780         spin_unlock_irq(&rme32->lock);
 781
 782         return 0;
 783 }
 784
 785 static int snd_rme32_pcm_hw_free(struct snd_pcm_substream *substream)
 786 {
 787         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
 788         if (! rme32->fullduplex_mode)
 789                 return 0;
 790         return snd_pcm_lib_free_pages(substream);
 791 }
 792
 793 static void snd_rme32_pcm_start(struct rme32 * rme32, int from_pause)
 794 {
 795         if (!from_pause) {
 796                 writel(0, rme32->iobase + RME32_IO_RESET_POS);
 797         }
 798
 799         rme32->wcreg |= RME32_WCR_START;
 800         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
 801 }
 802
 803 static void snd_rme32_pcm_stop(struct rme32 * rme32, int to_pause)
 804 {
 805         /*
 806          * Check if there is an unconfirmed IRQ, if so confirm it, or else
 807          * the hardware will not stop generating interrupts
 808          */
 809         rme32->rcreg = readl(rme32->iobase + RME32_IO_CONTROL_REGISTER);
 810         if (rme32->rcreg & RME32_RCR_IRQ) {
 811                 writel(0, rme32->iobase + RME32_IO_CONFIRM_ACTION_IRQ);
 812         }
 813         rme32->wcreg &= ~RME32_WCR_START;
 814         if (rme32->wcreg & RME32_WCR_SEL)
 815                 rme32->wcreg |= RME32_WCR_MUTE;
 816         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
 817         if (! to_pause)
 818                 writel(0, rme32->iobase + RME32_IO_RESET_POS);
 819 }
 820
 821 static irqreturn_t
 822 snd_rme32_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 823 {
 824         struct rme32 *rme32 = (struct rme32 *) dev_id;
 825
 826         rme32->rcreg = readl(rme32->iobase + RME32_IO_CONTROL_REGISTER);
 827         if (!(rme32->rcreg & RME32_RCR_IRQ)) {
 828                 return IRQ_NONE;
 829         } else {
 830                 if (rme32->capture_substream) {
 831                         snd_pcm_period_elapsed(rme32->capture_substream);
 832                 }
 833                 if (rme32->playback_substream) {
 834                         snd_pcm_period_elapsed(rme32->playback_substream);
 835                 }
 836                 writel(0, rme32->iobase + RME32_IO_CONFIRM_ACTION_IRQ);
 837         }
 838         return IRQ_HANDLED;
 839 }
 840
 841 static unsigned int period_bytes[] = { RME32_BLOCK_SIZE };
 842
 843
 844 static struct snd_pcm_hw_constraint_list hw_constraints_period_bytes = {
 845         .count = ARRAY_SIZE(period_bytes),
 846         .list = period_bytes,
 847         .mask = 0
 848 };
 849
 850 static void snd_rme32_set_buffer_constraint(struct rme32 *rme32, struct snd_pcm_runtime *runtime)
 851 {
 852         if (! rme32->fullduplex_mode) {
 853                 snd_pcm_hw_constraint_minmax(runtime,
 854                                              SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
 855                                              RME32_BUFFER_SIZE, RME32_BUFFER_SIZE);
 856                 snd_pcm_hw_constraint_list(runtime, 0,
 857                                            SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
 858                                            &hw_constraints_period_bytes);
 859         }
 860 }
 861
 862 static int snd_rme32_playback_spdif_open(struct snd_pcm_substream *substream)
 863 {
 864         int rate, dummy;
 865         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
 866         struct snd_pcm_runtime *runtime = substream->runtime;
 867
 868         snd_pcm_set_sync(substream);
 869
 870         spin_lock_irq(&rme32->lock);
 871         if (rme32->playback_substream != NULL) {
 872                 spin_unlock_irq(&rme32->lock);
 873                 return -EBUSY;
 874         }
 875         rme32->wcreg &= ~RME32_WCR_ADAT;
 876         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
 877         rme32->playback_substream = substream;
 878         spin_unlock_irq(&rme32->lock);
 879
 880         if (rme32->fullduplex_mode)
 881                 runtime->hw = snd_rme32_spdif_fd_info;
 882         else
 883                 runtime->hw = snd_rme32_spdif_info;
 884         if (rme32->pci->device == PCI_DEVICE_ID_RME_DIGI32_PRO) {
 885                 runtime->hw.rates |= SNDRV_PCM_RATE_64000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000;
 886                 runtime->hw.rate_max = 96000;
 887         }
 888         if ((rme32->rcreg & RME32_RCR_KMODE) &&
 889             (rate = snd_rme32_capture_getrate(rme32, &dummy)) > 0) {
 890                 /* AutoSync */
 891                 runtime->hw.rates = snd_rme32_ratecode(rate);
 892                 runtime->hw.rate_min = rate;
 893                 runtime->hw.rate_max = rate;
 894         }
 895
 896         snd_rme32_set_buffer_constraint(rme32, runtime);
 897
 898         rme32->wcreg_spdif_stream = rme32->wcreg_spdif;
 899         rme32->spdif_ctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
 900         snd_ctl_notify(rme32->card, SNDRV_CTL_EVENT_MASK_VALUE |
 901                        SNDRV_CTL_EVENT_MASK_INFO, &rme32->spdif_ctl->id);
 902         return 0;
 903 }
 904
 905 static int snd_rme32_capture_spdif_open(struct snd_pcm_substream *substream)
 906 {
 907         int isadat, rate;
 908         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
 909         struct snd_pcm_runtime *runtime = substream->runtime;
 910
 911         snd_pcm_set_sync(substream);
 912
 913         spin_lock_irq(&rme32->lock);
 914         if (rme32->capture_substream != NULL) {
 915                 spin_unlock_irq(&rme32->lock);
 916                 return -EBUSY;
 917         }
 918         rme32->capture_substream = substream;
 919         spin_unlock_irq(&rme32->lock);
 920
 921         if (rme32->fullduplex_mode)
 922                 runtime->hw = snd_rme32_spdif_fd_info;
 923         else
 924                 runtime->hw = snd_rme32_spdif_info;
 925         if (RME32_PRO_WITH_8414(rme32)) {
 926                 runtime->hw.rates |= SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000;
 927                 runtime->hw.rate_max = 96000;
 928         }
 929         if ((rate = snd_rme32_capture_getrate(rme32, &isadat)) > 0) {
 930                 if (isadat) {
 931                         return -EIO;
 932                 }
 933                 runtime->hw.rates = snd_rme32_ratecode(rate);
 934                 runtime->hw.rate_min = rate;
 935                 runtime->hw.rate_max = rate;
 936         }
 937
 938         snd_rme32_set_buffer_constraint(rme32, runtime);
 939
 940         return 0;
 941 }
 942
 943 static int
 944 snd_rme32_playback_adat_open(struct snd_pcm_substream *substream)
 945 {
 946         int rate, dummy;
 947         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
 948         struct snd_pcm_runtime *runtime = substream->runtime;
 949
 950         snd_pcm_set_sync(substream);
 951
 952         spin_lock_irq(&rme32->lock);
 953         if (rme32->playback_substream != NULL) {
 954                 spin_unlock_irq(&rme32->lock);
 955                 return -EBUSY;
 956         }
 957         rme32->wcreg |= RME32_WCR_ADAT;
 958         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
 959         rme32->playback_substream = substream;
 960         spin_unlock_irq(&rme32->lock);
 961
 962         if (rme32->fullduplex_mode)
 963                 runtime->hw = snd_rme32_adat_fd_info;
 964         else
 965                 runtime->hw = snd_rme32_adat_info;
 966         if ((rme32->rcreg & RME32_RCR_KMODE) &&
 967             (rate = snd_rme32_capture_getrate(rme32, &dummy)) > 0) {
 968                 /* AutoSync */
 969                 runtime->hw.rates = snd_rme32_ratecode(rate);
 970                 runtime->hw.rate_min = rate;
 971                 runtime->hw.rate_max = rate;
 972         }
 973
 974         snd_rme32_set_buffer_constraint(rme32, runtime);
 975         return 0;
 976 }
 977
 978 static int
 979 snd_rme32_capture_adat_open(struct snd_pcm_substream *substream)
 980 {
 981         int isadat, rate;
 982         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
 983         struct snd_pcm_runtime *runtime = substream->runtime;
 984
 985         if (rme32->fullduplex_mode)
 986                 runtime->hw = snd_rme32_adat_fd_info;
 987         else
 988                 runtime->hw = snd_rme32_adat_info;
 989         if ((rate = snd_rme32_capture_getrate(rme32, &isadat)) > 0) {
 990                 if (!isadat) {
 991                         return -EIO;
 992                 }
 993                 runtime->hw.rates = snd_rme32_ratecode(rate);
 994                 runtime->hw.rate_min = rate;
 995                 runtime->hw.rate_max = rate;
 996         }
 997
 998         snd_pcm_set_sync(substream);
 999
1000         spin_lock_irq(&rme32->lock);
1001         if (rme32->capture_substream != NULL) {
1002                 spin_unlock_irq(&rme32->lock);
1003                 return -EBUSY;
1004         }
1005         rme32->capture_substream = substream;
1006         spin_unlock_irq(&rme32->lock);
1007
1008         snd_rme32_set_buffer_constraint(rme32, runtime);
1009         return 0;
1010 }
1011
1012 static int snd_rme32_playback_close(struct snd_pcm_substream *substream)
1013 {
1014         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1015         int spdif = 0;
1016
1017         spin_lock_irq(&rme32->lock);
1018         rme32->playback_substream = NULL;
1019         rme32->playback_periodsize = 0;
1020         spdif = (rme32->wcreg & RME32_WCR_ADAT) == 0;
1021         spin_unlock_irq(&rme32->lock);
1022         if (spdif) {
1023                 rme32->spdif_ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1024                 snd_ctl_notify(rme32->card, SNDRV_CTL_EVENT_MASK_VALUE |
1025                                SNDRV_CTL_EVENT_MASK_INFO,
1026                                &rme32->spdif_ctl->id);
1027         }
1028         return 0;
1029 }
1030
1031 static int snd_rme32_capture_close(struct snd_pcm_substream *substream)
1032 {
1033         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1034
1035         spin_lock_irq(&rme32->lock);
1036         rme32->capture_substream = NULL;
1037         rme32->capture_periodsize = 0;
1038         spin_unlock(&rme32->lock);
1039         return 0;
1040 }
1041
1042 static int snd_rme32_playback_prepare(struct snd_pcm_substream *substream)
1043 {
1044         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1045
1046         spin_lock_irq(&rme32->lock);
1047         if (rme32->fullduplex_mode) {
1048                 memset(&rme32->playback_pcm, 0, sizeof(rme32->playback_pcm));
1049                 rme32->playback_pcm.hw_buffer_size = RME32_BUFFER_SIZE;
1050                 rme32->playback_pcm.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
1051         } else {
1052                 writel(0, rme32->iobase + RME32_IO_RESET_POS);
1053         }
1054         if (rme32->wcreg & RME32_WCR_SEL)
1055                 rme32->wcreg &= ~RME32_WCR_MUTE;
1056         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
1057         spin_unlock_irq(&rme32->lock);
1058         return 0;
1059 }
1060
1061 static int snd_rme32_capture_prepare(struct snd_pcm_substream *substream)
1062 {
1063         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1064
1065         spin_lock_irq(&rme32->lock);
1066         if (rme32->fullduplex_mode) {
1067                 memset(&rme32->capture_pcm, 0, sizeof(rme32->capture_pcm));
1068                 rme32->capture_pcm.hw_buffer_size = RME32_BUFFER_SIZE;
1069                 rme32->capture_pcm.hw_queue_size = RME32_BUFFER_SIZE / 2;
1070                 rme32->capture_pcm.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
1071         } else {
1072                 writel(0, rme32->iobase + RME32_IO_RESET_POS);
1073         }
1074         spin_unlock_irq(&rme32->lock);
1075         return 0;
1076 }
1077
1078 static int
1079 snd_rme32_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
1080 {
1081         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1082         struct list_head *pos;
1083         struct snd_pcm_substream *s;
1084
1085         spin_lock(&rme32->lock);
1086         snd_pcm_group_for_each(pos, substream) {
1087                 s = snd_pcm_group_substream_entry(pos);
1088                 if (s != rme32->playback_substream &&
1089                     s != rme32->capture_substream)
1090                         continue;
1091                 switch (cmd) {
1092                 case SNDRV_PCM_TRIGGER_START:
1093                         rme32->running |= (1 << s->stream);
1094                         if (rme32->fullduplex_mode) {
1095                                 /* remember the current DMA position */
1096                                 if (s == rme32->playback_substream) {
1097                                         rme32->playback_pcm.hw_io =
1098                                         rme32->playback_pcm.hw_data = snd_rme32_pcm_byteptr(rme32);
1099                                 } else {
1100                                         rme32->capture_pcm.hw_io =
1101                                         rme32->capture_pcm.hw_data = snd_rme32_pcm_byteptr(rme32);
1102                                 }
1103                         }
1104                         break;
1105                 case SNDRV_PCM_TRIGGER_STOP:
1106                         rme32->running &= ~(1 << s->stream);
1107                         break;
1108                 }
1109                 snd_pcm_trigger_done(s, substream);
1110         }
1111
1112         /* prefill playback buffer */
1113         if (cmd == SNDRV_PCM_TRIGGER_START && rme32->fullduplex_mode) {
1114                 snd_pcm_group_for_each(pos, substream) {
1115                         s = snd_pcm_group_substream_entry(pos);
1116                         if (s == rme32->playback_substream) {
1117                                 s->ops->ack(s);
1118                                 break;
1119                         }
1120                 }
1121         }
1122
1123         switch (cmd) {
1124         case SNDRV_PCM_TRIGGER_START:
1125                 if (rme32->running && ! RME32_ISWORKING(rme32))
1126                         snd_rme32_pcm_start(rme32, 0);
1127                 break;
1128         case SNDRV_PCM_TRIGGER_STOP:
1129                 if (! rme32->running && RME32_ISWORKING(rme32))
1130                         snd_rme32_pcm_stop(rme32, 0);
1131                 break;
1132         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1133                 if (rme32->running && RME32_ISWORKING(rme32))
1134                         snd_rme32_pcm_stop(rme32, 1);
1135                 break;
1136         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1137                 if (rme32->running && ! RME32_ISWORKING(rme32))
1138                         snd_rme32_pcm_start(rme32, 1);
1139                 break;
1140         }
1141         spin_unlock(&rme32->lock);
1142         return 0;
1143 }
1144
1145 /* pointer callback for halfduplex mode */
1146 static snd_pcm_uframes_t
1147 snd_rme32_playback_pointer(struct snd_pcm_substream *substream)
1148 {
1149         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1150         return snd_rme32_pcm_byteptr(rme32) >> rme32->playback_frlog;
1151 }
1152
1153 static snd_pcm_uframes_t
1154 snd_rme32_capture_pointer(struct snd_pcm_substream *substream)
1155 {
1156         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1157         return snd_rme32_pcm_byteptr(rme32) >> rme32->capture_frlog;
1158 }
1159
1160
1161 /* ack and pointer callbacks for fullduplex mode */
1162 static void snd_rme32_pb_trans_copy(struct snd_pcm_substream *substream,
1163                                     struct snd_pcm_indirect *rec, size_t bytes)
1164 {
1165         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1166         memcpy_toio(rme32->iobase + RME32_IO_DATA_BUFFER + rec->hw_data,
1167                     substream->runtime->dma_area + rec->sw_data, bytes);
1168 }
1169
1170 static int snd_rme32_playback_fd_ack(struct snd_pcm_substream *substream)
1171 {
1172         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1173         struct snd_pcm_indirect *rec, *cprec;
1174
1175         rec = &rme32->playback_pcm;
1176         cprec = &rme32->capture_pcm;
1177         spin_lock(&rme32->lock);
1178         rec->hw_queue_size = RME32_BUFFER_SIZE;
1179         if (rme32->running & (1 << SNDRV_PCM_STREAM_CAPTURE))
1180                 rec->hw_queue_size -= cprec->hw_ready;
1181         spin_unlock(&rme32->lock);
1182         snd_pcm_indirect_playback_transfer(substream, rec,
1183                                            snd_rme32_pb_trans_copy);
1184         return 0;
1185 }
1186
1187 static void snd_rme32_cp_trans_copy(struct snd_pcm_substream *substream,
1188                                     struct snd_pcm_indirect *rec, size_t bytes)
1189 {
1190         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1191         memcpy_fromio(substream->runtime->dma_area + rec->sw_data,
1192                       rme32->iobase + RME32_IO_DATA_BUFFER + rec->hw_data,
1193                       bytes);
1194 }
1195
1196 static int snd_rme32_capture_fd_ack(struct snd_pcm_substream *substream)
1197 {
1198         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1199         snd_pcm_indirect_capture_transfer(substream, &rme32->capture_pcm,
1200                                           snd_rme32_cp_trans_copy);
1201         return 0;
1202 }
1203
1204 static snd_pcm_uframes_t
1205 snd_rme32_playback_fd_pointer(struct snd_pcm_substream *substream)
1206 {
1207         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1208         return snd_pcm_indirect_playback_pointer(substream, &rme32->playback_pcm,
1209                                                  snd_rme32_pcm_byteptr(rme32));
1210 }
1211
1212 static snd_pcm_uframes_t
1213 snd_rme32_capture_fd_pointer(struct snd_pcm_substream *substream)
1214 {
1215         struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1216         return snd_pcm_indirect_capture_pointer(substream, &rme32->capture_pcm,
1217                                                 snd_rme32_pcm_byteptr(rme32));
1218 }
1219
1220 /* for halfduplex mode */
1221 static struct snd_pcm_ops snd_rme32_playback_spdif_ops = {
1222         .open =         snd_rme32_playback_spdif_open,
1223         .close =        snd_rme32_playback_close,
1224         .ioctl =        snd_pcm_lib_ioctl,
1225         .hw_params =    snd_rme32_playback_hw_params,
1226         .hw_free =      snd_rme32_pcm_hw_free,
1227         .prepare =      snd_rme32_playback_prepare,
1228         .trigger =      snd_rme32_pcm_trigger,
1229         .pointer =      snd_rme32_playback_pointer,
1230         .copy =         snd_rme32_playback_copy,
1231         .silence =      snd_rme32_playback_silence,
1232         .mmap =         snd_pcm_lib_mmap_iomem,
1233 };
1234
1235 static struct snd_pcm_ops snd_rme32_capture_spdif_ops = {
1236         .open =         snd_rme32_capture_spdif_open,
1237         .close =        snd_rme32_capture_close,
1238         .ioctl =        snd_pcm_lib_ioctl,
1239         .hw_params =    snd_rme32_capture_hw_params,
1240         .hw_free =      snd_rme32_pcm_hw_free,
1241         .prepare =      snd_rme32_capture_prepare,
1242         .trigger =      snd_rme32_pcm_trigger,
1243         .pointer =      snd_rme32_capture_pointer,
1244         .copy =         snd_rme32_capture_copy,
1245         .mmap =         snd_pcm_lib_mmap_iomem,
1246 };
1247
1248 static struct snd_pcm_ops snd_rme32_playback_adat_ops = {
1249         .open =         snd_rme32_playback_adat_open,
1250         .close =        snd_rme32_playback_close,
1251         .ioctl =        snd_pcm_lib_ioctl,
1252         .hw_params =    snd_rme32_playback_hw_params,
1253         .prepare =      snd_rme32_playback_prepare,
1254         .trigger =      snd_rme32_pcm_trigger,
1255         .pointer =      snd_rme32_playback_pointer,
1256         .copy =         snd_rme32_playback_copy,
1257         .silence =      snd_rme32_playback_silence,
1258         .mmap =         snd_pcm_lib_mmap_iomem,
1259 };
1260
1261 static struct snd_pcm_ops snd_rme32_capture_adat_ops = {
1262         .open =         snd_rme32_capture_adat_open,
1263         .close =        snd_rme32_capture_close,
1264         .ioctl =        snd_pcm_lib_ioctl,
1265         .hw_params =    snd_rme32_capture_hw_params,
1266         .prepare =      snd_rme32_capture_prepare,
1267         .trigger =      snd_rme32_pcm_trigger,
1268         .pointer =      snd_rme32_capture_pointer,
1269         .copy =         snd_rme32_capture_copy,
1270         .mmap =         snd_pcm_lib_mmap_iomem,
1271 };
1272
1273 /* for fullduplex mode */
1274 static struct snd_pcm_ops snd_rme32_playback_spdif_fd_ops = {
1275         .open =         snd_rme32_playback_spdif_open,
1276         .close =        snd_rme32_playback_close,
1277         .ioctl =        snd_pcm_lib_ioctl,
1278         .hw_params =    snd_rme32_playback_hw_params,
1279         .hw_free =      snd_rme32_pcm_hw_free,
1280         .prepare =      snd_rme32_playback_prepare,
1281         .trigger =      snd_rme32_pcm_trigger,
1282         .pointer =      snd_rme32_playback_fd_pointer,
1283         .ack =          snd_rme32_playback_fd_ack,
1284 };
1285
1286 static struct snd_pcm_ops snd_rme32_capture_spdif_fd_ops = {
1287         .open =         snd_rme32_capture_spdif_open,
1288         .close =        snd_rme32_capture_close,
1289         .ioctl =        snd_pcm_lib_ioctl,
1290         .hw_params =    snd_rme32_capture_hw_params,
1291         .hw_free =      snd_rme32_pcm_hw_free,
1292         .prepare =      snd_rme32_capture_prepare,
1293         .trigger =      snd_rme32_pcm_trigger,
1294         .pointer =      snd_rme32_capture_fd_pointer,
1295         .ack =          snd_rme32_capture_fd_ack,
1296 };
1297
1298 static struct snd_pcm_ops snd_rme32_playback_adat_fd_ops = {
1299         .open =         snd_rme32_playback_adat_open,
1300         .close =        snd_rme32_playback_close,
1301         .ioctl =        snd_pcm_lib_ioctl,
1302         .hw_params =    snd_rme32_playback_hw_params,
1303         .prepare =      snd_rme32_playback_prepare,
1304         .trigger =      snd_rme32_pcm_trigger,
1305         .pointer =      snd_rme32_playback_fd_pointer,
1306         .ack =          snd_rme32_playback_fd_ack,
1307 };
1308
1309 static struct snd_pcm_ops snd_rme32_capture_adat_fd_ops = {
1310         .open =         snd_rme32_capture_adat_open,
1311         .close =        snd_rme32_capture_close,
1312         .ioctl =        snd_pcm_lib_ioctl,
1313         .hw_params =    snd_rme32_capture_hw_params,
1314         .prepare =      snd_rme32_capture_prepare,
1315         .trigger =      snd_rme32_pcm_trigger,
1316         .pointer =      snd_rme32_capture_fd_pointer,
1317         .ack =          snd_rme32_capture_fd_ack,
1318 };
1319
1320 static void snd_rme32_free(void *private_data)
1321 {
1322         struct rme32 *rme32 = (struct rme32 *) private_data;
1323
1324         if (rme32 == NULL) {
1325                 return;
1326         }
1327         if (rme32->irq >= 0) {
1328                 snd_rme32_pcm_stop(rme32, 0);
1329                 free_irq(rme32->irq, (void *) rme32);
1330                 rme32->irq = -1;
1331         }
1332         if (rme32->iobase) {
1333                 iounmap(rme32->iobase);
1334                 rme32->iobase = NULL;
1335         }
1336         if (rme32->port) {
1337                 pci_release_regions(rme32->pci);
1338                 rme32->port = 0;
1339         }
1340         pci_disable_device(rme32->pci);
1341 }
1342
1343 static void snd_rme32_free_spdif_pcm(struct snd_pcm *pcm)
1344 {
1345         struct rme32 *rme32 = (struct rme32 *) pcm->private_data;
1346         rme32->spdif_pcm = NULL;
1347 }
1348
1349 static void
1350 snd_rme32_free_adat_pcm(struct snd_pcm *pcm)
1351 {
1352         struct rme32 *rme32 = (struct rme32 *) pcm->private_data;
1353         rme32->adat_pcm = NULL;
1354 }
1355
1356 static int __devinit snd_rme32_create(struct rme32 * rme32)
1357 {
1358         struct pci_dev *pci = rme32->pci;
1359         int err;
1360
1361         rme32->irq = -1;
1362         spin_lock_init(&rme32->lock);
1363
1364         if ((err = pci_enable_device(pci)) < 0)
1365                 return err;
1366
1367         if ((err = pci_request_regions(pci, "RME32")) < 0)
1368                 return err;
1369         rme32->port = pci_resource_start(rme32->pci, 0);
1370
1371         if ((rme32->iobase = ioremap_nocache(rme32->port, RME32_IO_SIZE)) == 0) {
1372                 snd_printk(KERN_ERR "unable to remap memory region 0x%lx-0x%lx\n",
1373                            rme32->port, rme32->port + RME32_IO_SIZE - 1);
1374                 return -ENOMEM;
1375         }
1376
1377         if (request_irq(pci->irq, snd_rme32_interrupt, SA_INTERRUPT | SA_SHIRQ, "RME32", (void *) rme32)) {
1378                 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
1379                 return -EBUSY;
1380         }
1381         rme32->irq = pci->irq;
1382
1383         /* read the card's revision number */
1384         pci_read_config_byte(pci, 8, &rme32->rev);
1385
1386         /* set up ALSA pcm device for S/PDIF */
1387         if ((err = snd_pcm_new(rme32->card, "Digi32 IEC958", 0, 1, 1, &rme32->spdif_pcm)) < 0) {
1388                 return err;
1389         }
1390         rme32->spdif_pcm->private_data = rme32;
1391         rme32->spdif_pcm->private_free = snd_rme32_free_spdif_pcm;
1392         strcpy(rme32->spdif_pcm->name, "Digi32 IEC958");
1393         if (rme32->fullduplex_mode) {
1394                 snd_pcm_set_ops(rme32->spdif_pcm, SNDRV_PCM_STREAM_PLAYBACK,
1395                                 &snd_rme32_playback_spdif_fd_ops);
1396                 snd_pcm_set_ops(rme32->spdif_pcm, SNDRV_PCM_STREAM_CAPTURE,
1397                                 &snd_rme32_capture_spdif_fd_ops);
1398                 snd_pcm_lib_preallocate_pages_for_all(rme32->spdif_pcm, SNDRV_DMA_TYPE_CONTINUOUS,
1399                                                       snd_dma_continuous_data(GFP_KERNEL),
1400                                                       0, RME32_MID_BUFFER_SIZE);
1401                 rme32->spdif_pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
1402         } else {
1403                 snd_pcm_set_ops(rme32->spdif_pcm, SNDRV_PCM_STREAM_PLAYBACK,
1404                                 &snd_rme32_playback_spdif_ops);
1405                 snd_pcm_set_ops(rme32->spdif_pcm, SNDRV_PCM_STREAM_CAPTURE,
1406                                 &snd_rme32_capture_spdif_ops);
1407                 rme32->spdif_pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
1408         }
1409
1410         /* set up ALSA pcm device for ADAT */
1411         if ((pci->device == PCI_DEVICE_ID_RME_DIGI32) ||
1412             (pci->device == PCI_DEVICE_ID_RME_DIGI32_PRO)) {
1413                 /* ADAT is not available on DIGI32 and DIGI32 Pro */
1414                 rme32->adat_pcm = NULL;
1415         }
1416         else {
1417                 if ((err = snd_pcm_new(rme32->card, "Digi32 ADAT", 1,
1418                                        1, 1, &rme32->adat_pcm)) < 0)
1419                 {
1420                         return err;
1421                 }
1422                 rme32->adat_pcm->private_data = rme32;
1423                 rme32->adat_pcm->private_free = snd_rme32_free_adat_pcm;
1424                 strcpy(rme32->adat_pcm->name, "Digi32 ADAT");
1425                 if (rme32->fullduplex_mode) {
1426                         snd_pcm_set_ops(rme32->adat_pcm, SNDRV_PCM_STREAM_PLAYBACK,
1427                                         &snd_rme32_playback_adat_fd_ops);
1428                         snd_pcm_set_ops(rme32->adat_pcm, SNDRV_PCM_STREAM_CAPTURE,
1429                                         &snd_rme32_capture_adat_fd_ops);
1430                         snd_pcm_lib_preallocate_pages_for_all(rme32->adat_pcm, SNDRV_DMA_TYPE_CONTINUOUS,
1431                                                               snd_dma_continuous_data(GFP_KERNEL),
1432                                                               0, RME32_MID_BUFFER_SIZE);
1433                         rme32->adat_pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
1434                 } else {
1435                         snd_pcm_set_ops(rme32->adat_pcm, SNDRV_PCM_STREAM_PLAYBACK,
1436                                         &snd_rme32_playback_adat_ops);
1437                         snd_pcm_set_ops(rme32->adat_pcm, SNDRV_PCM_STREAM_CAPTURE,
1438                                         &snd_rme32_capture_adat_ops);
1439                         rme32->adat_pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
1440                 }
1441         }
1442
1443
1444         rme32->playback_periodsize = 0;
1445         rme32->capture_periodsize = 0;
1446
1447         /* make sure playback/capture is stopped, if by some reason active */
1448         snd_rme32_pcm_stop(rme32, 0);
1449
1450         /* reset DAC */
1451         snd_rme32_reset_dac(rme32);
1452
1453         /* reset buffer pointer */
1454         writel(0, rme32->iobase + RME32_IO_RESET_POS);
1455
1456         /* set default values in registers */
1457         rme32->wcreg = RME32_WCR_SEL |   /* normal playback */
1458                 RME32_WCR_INP_0 | /* input select */
1459                 RME32_WCR_MUTE;  /* muting on */
1460         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
1461
1462
1463         /* init switch interface */
1464         if ((err = snd_rme32_create_switches(rme32->card, rme32)) < 0) {
1465                 return err;
1466         }
1467
1468         /* init proc interface */
1469         snd_rme32_proc_init(rme32);
1470
1471         rme32->capture_substream = NULL;
1472         rme32->playback_substream = NULL;
1473
1474         return 0;
1475 }
1476
1477 /*
1478  * proc interface
1479  */
1480
1481 static void
1482 snd_rme32_proc_read(struct snd_info_entry * entry, struct snd_info_buffer *buffer)
1483 {
1484         int n;
1485         struct rme32 *rme32 = (struct rme32 *) entry->private_data;
1486
1487         rme32->rcreg = readl(rme32->iobase + RME32_IO_CONTROL_REGISTER);
1488
1489         snd_iprintf(buffer, rme32->card->longname);
1490         snd_iprintf(buffer, " (index #%d)\n", rme32->card->number + 1);
1491
1492         snd_iprintf(buffer, "\nGeneral settings\n");
1493         if (rme32->fullduplex_mode)
1494                 snd_iprintf(buffer, "  Full-duplex mode\n");
1495         else
1496                 snd_iprintf(buffer, "  Half-duplex mode\n");
1497         if (RME32_PRO_WITH_8414(rme32)) {
1498                 snd_iprintf(buffer, "  receiver: CS8414\n");
1499         } else {
1500                 snd_iprintf(buffer, "  receiver: CS8412\n");
1501         }
1502         if (rme32->wcreg & RME32_WCR_MODE24) {
1503                 snd_iprintf(buffer, "  format: 24 bit");
1504         } else {
1505                 snd_iprintf(buffer, "  format: 16 bit");
1506         }
1507         if (rme32->wcreg & RME32_WCR_MONO) {
1508                 snd_iprintf(buffer, ", Mono\n");
1509         } else {
1510                 snd_iprintf(buffer, ", Stereo\n");
1511         }
1512
1513         snd_iprintf(buffer, "\nInput settings\n");
1514         switch (snd_rme32_getinputtype(rme32)) {
1515         case RME32_INPUT_OPTICAL:
1516                 snd_iprintf(buffer, "  input: optical");
1517                 break;
1518         case RME32_INPUT_COAXIAL:
1519                 snd_iprintf(buffer, "  input: coaxial");
1520                 break;
1521         case RME32_INPUT_INTERNAL:
1522                 snd_iprintf(buffer, "  input: internal");
1523                 break;
1524         case RME32_INPUT_XLR:
1525                 snd_iprintf(buffer, "  input: XLR");
1526                 break;
1527         }
1528         if (snd_rme32_capture_getrate(rme32, &n) < 0) {
1529                 snd_iprintf(buffer, "\n  sample rate: no valid signal\n");
1530         } else {
1531                 if (n) {
1532                         snd_iprintf(buffer, " (8 channels)\n");
1533                 } else {
1534                         snd_iprintf(buffer, " (2 channels)\n");
1535                 }
1536                 snd_iprintf(buffer, "  sample rate: %d Hz\n",
1537                             snd_rme32_capture_getrate(rme32, &n));
1538         }
1539
1540         snd_iprintf(buffer, "\nOutput settings\n");
1541         if (rme32->wcreg & RME32_WCR_SEL) {
1542                 snd_iprintf(buffer, "  output signal: normal playback");
1543         } else {
1544                 snd_iprintf(buffer, "  output signal: same as input");
1545         }
1546         if (rme32->wcreg & RME32_WCR_MUTE) {
1547                 snd_iprintf(buffer, " (muted)\n");
1548         } else {
1549                 snd_iprintf(buffer, "\n");
1550         }
1551
1552         /* master output frequency */
1553         if (!
1554             ((!(rme32->wcreg & RME32_WCR_FREQ_0))
1555              && (!(rme32->wcreg & RME32_WCR_FREQ_1)))) {
1556                 snd_iprintf(buffer, "  sample rate: %d Hz\n",
1557                             snd_rme32_playback_getrate(rme32));
1558         }
1559         if (rme32->rcreg & RME32_RCR_KMODE) {
1560                 snd_iprintf(buffer, "  sample clock source: AutoSync\n");
1561         } else {
1562                 snd_iprintf(buffer, "  sample clock source: Internal\n");
1563         }
1564         if (rme32->wcreg & RME32_WCR_PRO) {
1565                 snd_iprintf(buffer, "  format: AES/EBU (professional)\n");
1566         } else {
1567                 snd_iprintf(buffer, "  format: IEC958 (consumer)\n");
1568         }
1569         if (rme32->wcreg & RME32_WCR_EMP) {
1570                 snd_iprintf(buffer, "  emphasis: on\n");
1571         } else {
1572                 snd_iprintf(buffer, "  emphasis: off\n");
1573         }
1574 }
1575
1576 static void __devinit snd_rme32_proc_init(struct rme32 * rme32)
1577 {
1578         struct snd_info_entry *entry;
1579
1580         if (! snd_card_proc_new(rme32->card, "rme32", &entry))
1581                 snd_info_set_text_ops(entry, rme32, snd_rme32_proc_read);
1582 }
1583
1584 /*
1585  * control interface
1586  */
1587
1588 static int
1589 snd_rme32_info_loopback_control(struct snd_kcontrol *kcontrol,
1590                                 struct snd_ctl_elem_info *uinfo)
1591 {
1592         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1593         uinfo->count = 1;
1594         uinfo->value.integer.min = 0;
1595         uinfo->value.integer.max = 1;
1596         return 0;
1597 }
1598 static int
1599 snd_rme32_get_loopback_control(struct snd_kcontrol *kcontrol,
1600                                struct snd_ctl_elem_value *ucontrol)
1601 {
1602         struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1603
1604         spin_lock_irq(&rme32->lock);
1605         ucontrol->value.integer.value[0] =
1606             rme32->wcreg & RME32_WCR_SEL ? 0 : 1;
1607         spin_unlock_irq(&rme32->lock);
1608         return 0;
1609 }
1610 static int
1611 snd_rme32_put_loopback_control(struct snd_kcontrol *kcontrol,
1612                                struct snd_ctl_elem_value *ucontrol)
1613 {
1614         struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1615         unsigned int val;
1616         int change;
1617
1618         val = ucontrol->value.integer.value[0] ? 0 : RME32_WCR_SEL;
1619         spin_lock_irq(&rme32->lock);
1620         val = (rme32->wcreg & ~RME32_WCR_SEL) | val;
1621         change = val != rme32->wcreg;
1622         if (ucontrol->value.integer.value[0])
1623                 val &= ~RME32_WCR_MUTE;
1624         else
1625                 val |= RME32_WCR_MUTE;
1626         rme32->wcreg = val;
1627         writel(val, rme32->iobase + RME32_IO_CONTROL_REGISTER);
1628         spin_unlock_irq(&rme32->lock);
1629         return change;
1630 }
1631
1632 static int
1633 snd_rme32_info_inputtype_control(struct snd_kcontrol *kcontrol,
1634                                  struct snd_ctl_elem_info *uinfo)
1635 {
1636         struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1637         static char *texts[4] = { "Optical", "Coaxial", "Internal", "XLR" };
1638
1639         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1640         uinfo->count = 1;
1641         switch (rme32->pci->device) {
1642         case PCI_DEVICE_ID_RME_DIGI32:
1643         case PCI_DEVICE_ID_RME_DIGI32_8:
1644                 uinfo->value.enumerated.items = 3;
1645                 break;
1646         case PCI_DEVICE_ID_RME_DIGI32_PRO:
1647                 uinfo->value.enumerated.items = 4;
1648                 break;
1649         default:
1650                 snd_BUG();
1651                 break;
1652         }
1653         if (uinfo->value.enumerated.item >
1654             uinfo->value.enumerated.items - 1) {
1655                 uinfo->value.enumerated.item =
1656                     uinfo->value.enumerated.items - 1;
1657         }
1658         strcpy(uinfo->value.enumerated.name,
1659                texts[uinfo->value.enumerated.item]);
1660         return 0;
1661 }
1662 static int
1663 snd_rme32_get_inputtype_control(struct snd_kcontrol *kcontrol,
1664                                 struct snd_ctl_elem_value *ucontrol)
1665 {
1666         struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1667         unsigned int items = 3;
1668
1669         spin_lock_irq(&rme32->lock);
1670         ucontrol->value.enumerated.item[0] = snd_rme32_getinputtype(rme32);
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         if (ucontrol->value.enumerated.item[0] >= items) {
1685                 ucontrol->value.enumerated.item[0] = items - 1;
1686         }
1687
1688         spin_unlock_irq(&rme32->lock);
1689         return 0;
1690 }
1691 static int
1692 snd_rme32_put_inputtype_control(struct snd_kcontrol *kcontrol,
1693                                 struct snd_ctl_elem_value *ucontrol)
1694 {
1695         struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1696         unsigned int val;
1697         int change, items = 3;
1698
1699         switch (rme32->pci->device) {
1700         case PCI_DEVICE_ID_RME_DIGI32:
1701         case PCI_DEVICE_ID_RME_DIGI32_8:
1702                 items = 3;
1703                 break;
1704         case PCI_DEVICE_ID_RME_DIGI32_PRO:
1705                 items = 4;
1706                 break;
1707         default:
1708                 snd_BUG();
1709                 break;
1710         }
1711         val = ucontrol->value.enumerated.item[0] % items;
1712
1713         spin_lock_irq(&rme32->lock);
1714         change = val != (unsigned int)snd_rme32_getinputtype(rme32);
1715         snd_rme32_setinputtype(rme32, val);
1716         spin_unlock_irq(&rme32->lock);
1717         return change;
1718 }
1719
1720 static int
1721 snd_rme32_info_clockmode_control(struct snd_kcontrol *kcontrol,
1722                                  struct snd_ctl_elem_info *uinfo)
1723 {
1724         static char *texts[4] = { "AutoSync",
1725                                   "Internal 32.0kHz",
1726                                   "Internal 44.1kHz",
1727                                   "Internal 48.0kHz" };
1728
1729         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1730         uinfo->count = 1;
1731         uinfo->value.enumerated.items = 4;
1732         if (uinfo->value.enumerated.item > 3) {
1733                 uinfo->value.enumerated.item = 3;
1734         }
1735         strcpy(uinfo->value.enumerated.name,
1736                texts[uinfo->value.enumerated.item]);
1737         return 0;
1738 }
1739 static int
1740 snd_rme32_get_clockmode_control(struct snd_kcontrol *kcontrol,
1741                                 struct snd_ctl_elem_value *ucontrol)
1742 {
1743         struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1744
1745         spin_lock_irq(&rme32->lock);
1746         ucontrol->value.enumerated.item[0] = snd_rme32_getclockmode(rme32);
1747         spin_unlock_irq(&rme32->lock);
1748         return 0;
1749 }
1750 static int
1751 snd_rme32_put_clockmode_control(struct snd_kcontrol *kcontrol,
1752                                 struct snd_ctl_elem_value *ucontrol)
1753 {
1754         struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1755         unsigned int val;
1756         int change;
1757
1758         val = ucontrol->value.enumerated.item[0] % 3;
1759         spin_lock_irq(&rme32->lock);
1760         change = val != (unsigned int)snd_rme32_getclockmode(rme32);
1761         snd_rme32_setclockmode(rme32, val);
1762         spin_unlock_irq(&rme32->lock);
1763         return change;
1764 }
1765
1766 static u32 snd_rme32_convert_from_aes(struct snd_aes_iec958 * aes)
1767 {
1768         u32 val = 0;
1769         val |= (aes->status[0] & IEC958_AES0_PROFESSIONAL) ? RME32_WCR_PRO : 0;
1770         if (val & RME32_WCR_PRO)
1771                 val |= (aes->status[0] & IEC958_AES0_PRO_EMPHASIS_5015) ? RME32_WCR_EMP : 0;
1772         else
1773                 val |= (aes->status[0] & IEC958_AES0_CON_EMPHASIS_5015) ? RME32_WCR_EMP : 0;
1774         return val;
1775 }
1776
1777 static void snd_rme32_convert_to_aes(struct snd_aes_iec958 * aes, u32 val)
1778 {
1779         aes->status[0] = ((val & RME32_WCR_PRO) ? IEC958_AES0_PROFESSIONAL : 0);
1780         if (val & RME32_WCR_PRO)
1781                 aes->status[0] |= (val & RME32_WCR_EMP) ? IEC958_AES0_PRO_EMPHASIS_5015 : 0;
1782         else
1783                 aes->status[0] |= (val & RME32_WCR_EMP) ? IEC958_AES0_CON_EMPHASIS_5015 : 0;
1784 }
1785
1786 static int snd_rme32_control_spdif_info(struct snd_kcontrol *kcontrol,
1787                                         struct snd_ctl_elem_info *uinfo)
1788 {
1789         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1790         uinfo->count = 1;
1791         return 0;
1792 }
1793
1794 static int snd_rme32_control_spdif_get(struct snd_kcontrol *kcontrol,
1795                                        struct snd_ctl_elem_value *ucontrol)
1796 {
1797         struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1798
1799         snd_rme32_convert_to_aes(&ucontrol->value.iec958,
1800                                  rme32->wcreg_spdif);
1801         return 0;
1802 }
1803
1804 static int snd_rme32_control_spdif_put(struct snd_kcontrol *kcontrol,
1805                                        struct snd_ctl_elem_value *ucontrol)
1806 {
1807         struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1808         int change;
1809         u32 val;
1810
1811         val = snd_rme32_convert_from_aes(&ucontrol->value.iec958);
1812         spin_lock_irq(&rme32->lock);
1813         change = val != rme32->wcreg_spdif;
1814         rme32->wcreg_spdif = val;
1815         spin_unlock_irq(&rme32->lock);
1816         return change;
1817 }
1818
1819 static int snd_rme32_control_spdif_stream_info(struct snd_kcontrol *kcontrol,
1820                                                struct snd_ctl_elem_info *uinfo)
1821 {
1822         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1823         uinfo->count = 1;
1824         return 0;
1825 }
1826
1827 static int snd_rme32_control_spdif_stream_get(struct snd_kcontrol *kcontrol,
1828                                               struct snd_ctl_elem_value *
1829                                               ucontrol)
1830 {
1831         struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1832
1833         snd_rme32_convert_to_aes(&ucontrol->value.iec958,
1834                                  rme32->wcreg_spdif_stream);
1835         return 0;
1836 }
1837
1838 static int snd_rme32_control_spdif_stream_put(struct snd_kcontrol *kcontrol,
1839                                               struct snd_ctl_elem_value *
1840                                               ucontrol)
1841 {
1842         struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1843         int change;
1844         u32 val;
1845
1846         val = snd_rme32_convert_from_aes(&ucontrol->value.iec958);
1847         spin_lock_irq(&rme32->lock);
1848         change = val != rme32->wcreg_spdif_stream;
1849         rme32->wcreg_spdif_stream = val;
1850         rme32->wcreg &= ~(RME32_WCR_PRO | RME32_WCR_EMP);
1851         rme32->wcreg |= val;
1852         writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
1853         spin_unlock_irq(&rme32->lock);
1854         return change;
1855 }
1856
1857 static int snd_rme32_control_spdif_mask_info(struct snd_kcontrol *kcontrol,
1858                                              struct snd_ctl_elem_info *uinfo)
1859 {
1860         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1861         uinfo->count = 1;
1862         return 0;
1863 }
1864
1865 static int snd_rme32_control_spdif_mask_get(struct snd_kcontrol *kcontrol,
1866                                             struct snd_ctl_elem_value *
1867                                             ucontrol)
1868 {
1869         ucontrol->value.iec958.status[0] = kcontrol->private_value;
1870         return 0;
1871 }
1872
1873 static struct snd_kcontrol_new snd_rme32_controls[] = {
1874         {
1875                 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1876                 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
1877                 .info = snd_rme32_control_spdif_info,
1878                 .get =  snd_rme32_control_spdif_get,
1879                 .put =  snd_rme32_control_spdif_put
1880         },
1881         {
1882                 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE,
1883                 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1884                 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, PCM_STREAM),
1885                 .info = snd_rme32_control_spdif_stream_info,
1886                 .get =  snd_rme32_control_spdif_stream_get,
1887                 .put =  snd_rme32_control_spdif_stream_put
1888         },
1889         {
1890                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1891                 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1892                 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, CON_MASK),
1893                 .info = snd_rme32_control_spdif_mask_info,
1894                 .get =  snd_rme32_control_spdif_mask_get,
1895                 .private_value = IEC958_AES0_PROFESSIONAL | IEC958_AES0_CON_EMPHASIS
1896         },
1897         {
1898                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1899                 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1900                 .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, PRO_MASK),
1901                 .info = snd_rme32_control_spdif_mask_info,
1902                 .get =  snd_rme32_control_spdif_mask_get,
1903                 .private_value = IEC958_AES0_PROFESSIONAL | IEC958_AES0_PRO_EMPHASIS
1904         },
1905         {
1906                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1907                 .name = "Input Connector",
1908                 .info = snd_rme32_info_inputtype_control,
1909                 .get =  snd_rme32_get_inputtype_control,
1910                 .put =  snd_rme32_put_inputtype_control
1911         },
1912         {
1913                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1914                 .name = "Loopback Input",
1915                 .info = snd_rme32_info_loopback_control,
1916                 .get =  snd_rme32_get_loopback_control,
1917                 .put =  snd_rme32_put_loopback_control
1918         },
1919         {
1920                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1921                 .name = "Sample Clock Source",
1922                 .info = snd_rme32_info_clockmode_control,
1923                 .get =  snd_rme32_get_clockmode_control,
1924                 .put =  snd_rme32_put_clockmode_control
1925         }
1926 };
1927
1928 static int snd_rme32_create_switches(struct snd_card *card, struct rme32 * rme32)
1929 {
1930         int idx, err;
1931         struct snd_kcontrol *kctl;
1932
1933         for (idx = 0; idx < (int)ARRAY_SIZE(snd_rme32_controls); idx++) {
1934                 if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_rme32_controls[idx], rme32))) < 0)
1935                         return err;
1936                 if (idx == 1)   /* IEC958 (S/PDIF) Stream */
1937                         rme32->spdif_ctl = kctl;
1938         }
1939
1940         return 0;
1941 }
1942
1943 /*
1944  * Card initialisation
1945  */
1946
1947 static void snd_rme32_card_free(struct snd_card *card)
1948 {
1949         snd_rme32_free(card->private_data);
1950 }
1951
1952 static int __devinit
1953 snd_rme32_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
1954 {
1955         static int dev;
1956         struct rme32 *rme32;
1957         struct snd_card *card;
1958         int err;
1959
1960         if (dev >= SNDRV_CARDS) {
1961                 return -ENODEV;
1962         }
1963         if (!enable[dev]) {
1964                 dev++;
1965                 return -ENOENT;
1966         }
1967
1968         if ((card = snd_card_new(index[dev], id[dev], THIS_MODULE,
1969                                  sizeof(struct rme32))) == NULL)
1970                 return -ENOMEM;
1971         card->private_free = snd_rme32_card_free;
1972         rme32 = (struct rme32 *) card->private_data;
1973         rme32->card = card;
1974         rme32->pci = pci;
1975         snd_card_set_dev(card, &pci->dev);
1976         if (fullduplex[dev])
1977                 rme32->fullduplex_mode = 1;
1978         if ((err = snd_rme32_create(rme32)) < 0) {
1979                 snd_card_free(card);
1980                 return err;
1981         }
1982
1983         strcpy(card->driver, "Digi32");
1984         switch (rme32->pci->device) {
1985         case PCI_DEVICE_ID_RME_DIGI32:
1986                 strcpy(card->shortname, "RME Digi32");
1987                 break;
1988         case PCI_DEVICE_ID_RME_DIGI32_8:
1989                 strcpy(card->shortname, "RME Digi32/8");
1990                 break;
1991         case PCI_DEVICE_ID_RME_DIGI32_PRO:
1992                 strcpy(card->shortname, "RME Digi32 PRO");
1993                 break;
1994         }
1995         sprintf(card->longname, "%s (Rev. %d) at 0x%lx, irq %d",
1996                 card->shortname, rme32->rev, rme32->port, rme32->irq);
1997
1998         if ((err = snd_card_register(card)) < 0) {
1999                 snd_card_free(card);
2000                 return err;
2001         }
2002         pci_set_drvdata(pci, card);
2003         dev++;
2004         return 0;
2005 }
2006
2007 static void __devexit snd_rme32_remove(struct pci_dev *pci)
2008 {
2009         snd_card_free(pci_get_drvdata(pci));
2010         pci_set_drvdata(pci, NULL);
2011 }
2012
2013 static struct pci_driver driver = {
2014         .name =         "RME Digi32",
2015         .id_table =     snd_rme32_ids,
2016         .probe =        snd_rme32_probe,
2017         .remove =       __devexit_p(snd_rme32_remove),
2018 };
2019
2020 static int __init alsa_card_rme32_init(void)
2021 {
2022         return pci_register_driver(&driver);
2023 }
2024
2025 static void __exit alsa_card_rme32_exit(void)
2026 {
2027         pci_unregister_driver(&driver);
2028 }
2029
2030 module_init(alsa_card_rme32_init)
2031 module_exit(alsa_card_rme32_exit)