linux/sound/pci/rme32.c
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   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 *   ALSA driver for RME Digi32, Digi32/8 and Digi32 PRO audio interfaces
   4 *
   5 *      Copyright (c) 2002-2004 Martin Langer <martin-langer@gmx.de>,
   6 *                              Pilo Chambert <pilo.c@wanadoo.fr>
   7 *
   8 *      Thanks to :        Anders Torger <torger@ludd.luth.se>,
   9 *                         Henk Hesselink <henk@anda.nl>
  10 *                         for writing the digi96-driver 
  11 *                         and RME for all informations.
  12 * 
  13 * ****************************************************************************
  14 * 
  15 * Note #1 "Sek'd models" ................................... martin 2002-12-07
  16 * 
  17 * Identical soundcards by Sek'd were labeled:
  18 * RME Digi 32     = Sek'd Prodif 32
  19 * RME Digi 32 Pro = Sek'd Prodif 96
  20 * RME Digi 32/8   = Sek'd Prodif Gold
  21 * 
  22 * ****************************************************************************
  23 * 
  24 * Note #2 "full duplex mode" ............................... martin 2002-12-07
  25 * 
  26 * Full duplex doesn't work. All cards (32, 32/8, 32Pro) are working identical
  27 * in this mode. Rec data and play data are using the same buffer therefore. At
  28 * first you have got the playing bits in the buffer and then (after playing
  29 * them) they were overwitten by the captured sound of the CS8412/14. Both 
  30 * modes (play/record) are running harmonically hand in hand in the same buffer
  31 * and you have only one start bit plus one interrupt bit to control this 
  32 * paired action.
  33 * This is opposite to the latter rme96 where playing and capturing is totally
  34 * separated and so their full duplex mode is supported by alsa (using two 
  35 * start bits and two interrupts for two different buffers). 
  36 * But due to the wrong sequence of playing and capturing ALSA shows no solved
  37 * full duplex support for the rme32 at the moment. That's bad, but I'm not
  38 * able to solve it. Are you motivated enough to solve this problem now? Your
  39 * patch would be welcome!
  40 * 
  41 * ****************************************************************************
  42 *
  43 * "The story after the long seeking" -- tiwai
  44 *
  45 * Ok, the situation regarding the full duplex is now improved a bit.
  46 * In the fullduplex mode (given by the module parameter), the hardware buffer
  47 * is split to halves for read and write directions at the DMA pointer.
  48 * That is, the half above the current DMA pointer is used for write, and
  49 * the half below is used for read.  To mangle this strange behavior, an
  50 * software intermediate buffer is introduced.  This is, of course, not good
  51 * from the viewpoint of the data transfer efficiency.  However, this allows
  52 * you to use arbitrary buffer sizes, instead of the fixed I/O buffer size.
  53 *
  54 * ****************************************************************************
  55 */
  56
  57
  58#include <linux/delay.h>
  59#include <linux/gfp.h>
  60#include <linux/init.h>
  61#include <linux/interrupt.h>
  62#include <linux/pci.h>
  63#include <linux/module.h>
  64#include <linux/io.h>
  65
  66#include <sound/core.h>
  67#include <sound/info.h>
  68#include <sound/control.h>
  69#include <sound/pcm.h>
  70#include <sound/pcm_params.h>
  71#include <sound/pcm-indirect.h>
  72#include <sound/asoundef.h>
  73#include <sound/initval.h>
  74
  75static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  76static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  77static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;     /* Enable this card */
  78static bool fullduplex[SNDRV_CARDS]; // = {[0 ... (SNDRV_CARDS - 1)] = 1};
  79
  80module_param_array(index, int, NULL, 0444);
  81MODULE_PARM_DESC(index, "Index value for RME Digi32 soundcard.");
  82module_param_array(id, charp, NULL, 0444);
  83MODULE_PARM_DESC(id, "ID string for RME Digi32 soundcard.");
  84module_param_array(enable, bool, NULL, 0444);
  85MODULE_PARM_DESC(enable, "Enable RME Digi32 soundcard.");
  86module_param_array(fullduplex, bool, NULL, 0444);
  87MODULE_PARM_DESC(fullduplex, "Support full-duplex mode.");
  88MODULE_AUTHOR("Martin Langer <martin-langer@gmx.de>, Pilo Chambert <pilo.c@wanadoo.fr>");
  89MODULE_DESCRIPTION("RME Digi32, Digi32/8, Digi32 PRO");
  90MODULE_LICENSE("GPL");
  91
  92/* Defines for RME Digi32 series */
  93#define RME32_SPDIF_NCHANNELS 2
  94
  95/* Playback and capture buffer size */
  96#define RME32_BUFFER_SIZE 0x20000
  97
  98/* IO area size */
  99#define RME32_IO_SIZE 0x30000
 100
 101/* IO area offsets */
 102#define RME32_IO_DATA_BUFFER        0x0
 103#define RME32_IO_CONTROL_REGISTER   0x20000
 104#define RME32_IO_GET_POS            0x20000
 105#define RME32_IO_CONFIRM_ACTION_IRQ 0x20004
 106#define RME32_IO_RESET_POS          0x20100
 107
 108/* Write control register bits */
 109#define RME32_WCR_START     (1 << 0)    /* startbit */
 110#define RME32_WCR_MONO      (1 << 1)    /* 0=stereo, 1=mono
 111                                           Setting the whole card to mono
 112                                           doesn't seem to be very useful.
 113                                           A software-solution can handle 
 114                                           full-duplex with one direction in
 115                                           stereo and the other way in mono. 
 116                                           So, the hardware should work all 
 117                                           the time in stereo! */
 118#define RME32_WCR_MODE24    (1 << 2)    /* 0=16bit, 1=32bit */
 119#define RME32_WCR_SEL       (1 << 3)    /* 0=input on output, 1=normal playback/capture */
 120#define RME32_WCR_FREQ_0    (1 << 4)    /* frequency (play) */
 121#define RME32_WCR_FREQ_1    (1 << 5)
 122#define RME32_WCR_INP_0     (1 << 6)    /* input switch */
 123#define RME32_WCR_INP_1     (1 << 7)
 124#define RME32_WCR_RESET     (1 << 8)    /* Reset address */
 125#define RME32_WCR_MUTE      (1 << 9)    /* digital mute for output */
 126#define RME32_WCR_PRO       (1 << 10)   /* 1=professional, 0=consumer */
 127#define RME32_WCR_DS_BM     (1 << 11)   /* 1=DoubleSpeed (only PRO-Version); 1=BlockMode (only Adat-Version) */
 128#define RME32_WCR_ADAT      (1 << 12)   /* Adat Mode (only Adat-Version) */
 129#define RME32_WCR_AUTOSYNC  (1 << 13)   /* AutoSync */
 130#define RME32_WCR_PD        (1 << 14)   /* DAC Reset (only PRO-Version) */
 131#define RME32_WCR_EMP       (1 << 15)   /* 1=Emphasis on (only PRO-Version) */
 132
 133#define RME32_WCR_BITPOS_FREQ_0 4
 134#define RME32_WCR_BITPOS_FREQ_1 5
 135#define RME32_WCR_BITPOS_INP_0 6
 136#define RME32_WCR_BITPOS_INP_1 7
 137
 138/* Read control register bits */
 139#define RME32_RCR_AUDIO_ADDR_MASK 0x1ffff
 140#define RME32_RCR_LOCK      (1 << 23)   /* 1=locked, 0=not locked */
 141#define RME32_RCR_ERF       (1 << 26)   /* 1=Error, 0=no Error */
 142#define RME32_RCR_FREQ_0    (1 << 27)   /* CS841x frequency (record) */
 143#define RME32_RCR_FREQ_1    (1 << 28)
 144#define RME32_RCR_FREQ_2    (1 << 29)
 145#define RME32_RCR_KMODE     (1 << 30)   /* card mode: 1=PLL, 0=quartz */
 146#define RME32_RCR_IRQ       (1 << 31)   /* interrupt */
 147
 148#define RME32_RCR_BITPOS_F0 27
 149#define RME32_RCR_BITPOS_F1 28
 150#define RME32_RCR_BITPOS_F2 29
 151
 152/* Input types */
 153#define RME32_INPUT_OPTICAL 0
 154#define RME32_INPUT_COAXIAL 1
 155#define RME32_INPUT_INTERNAL 2
 156#define RME32_INPUT_XLR 3
 157
 158/* Clock modes */
 159#define RME32_CLOCKMODE_SLAVE 0
 160#define RME32_CLOCKMODE_MASTER_32 1
 161#define RME32_CLOCKMODE_MASTER_44 2
 162#define RME32_CLOCKMODE_MASTER_48 3
 163
 164/* Block sizes in bytes */
 165#define RME32_BLOCK_SIZE 8192
 166
 167/* Software intermediate buffer (max) size */
 168#define RME32_MID_BUFFER_SIZE (1024*1024)
 169
 170/* Hardware revisions */
 171#define RME32_32_REVISION 192
 172#define RME32_328_REVISION_OLD 100
 173#define RME32_328_REVISION_NEW 101
 174#define RME32_PRO_REVISION_WITH_8412 192
 175#define RME32_PRO_REVISION_WITH_8414 150
 176
 177
 178struct rme32 {
 179        spinlock_t lock;
 180        int irq;
 181        unsigned long port;
 182        void __iomem *iobase;
 183
 184        u32 wcreg;              /* cached write control register value */
 185        u32 wcreg_spdif;        /* S/PDIF setup */
 186        u32 wcreg_spdif_stream; /* S/PDIF setup (temporary) */
 187        u32 rcreg;              /* cached read control register value */
 188
 189        u8 rev;                 /* card revision number */
 190
 191        struct snd_pcm_substream *playback_substream;
 192        struct snd_pcm_substream *capture_substream;
 193
 194        int playback_frlog;     /* log2 of framesize */
 195        int capture_frlog;
 196
 197        size_t playback_periodsize;     /* in bytes, zero if not used */
 198        size_t capture_periodsize;      /* in bytes, zero if not used */
 199
 200        unsigned int fullduplex_mode;
 201        int running;
 202
 203        struct snd_pcm_indirect playback_pcm;
 204        struct snd_pcm_indirect capture_pcm;
 205
 206        struct snd_card *card;
 207        struct snd_pcm *spdif_pcm;
 208        struct snd_pcm *adat_pcm;
 209        struct pci_dev *pci;
 210        struct snd_kcontrol *spdif_ctl;
 211};
 212
 213static const struct pci_device_id snd_rme32_ids[] = {
 214        {PCI_VDEVICE(XILINX_RME, PCI_DEVICE_ID_RME_DIGI32), 0,},
 215        {PCI_VDEVICE(XILINX_RME, PCI_DEVICE_ID_RME_DIGI32_8), 0,},
 216        {PCI_VDEVICE(XILINX_RME, PCI_DEVICE_ID_RME_DIGI32_PRO), 0,},
 217        {0,}
 218};
 219
 220MODULE_DEVICE_TABLE(pci, snd_rme32_ids);
 221
 222#define RME32_ISWORKING(rme32) ((rme32)->wcreg & RME32_WCR_START)
 223#define RME32_PRO_WITH_8414(rme32) ((rme32)->pci->device == PCI_DEVICE_ID_RME_DIGI32_PRO && (rme32)->rev == RME32_PRO_REVISION_WITH_8414)
 224
 225static int snd_rme32_playback_prepare(struct snd_pcm_substream *substream);
 226
 227static int snd_rme32_capture_prepare(struct snd_pcm_substream *substream);
 228
 229static int snd_rme32_pcm_trigger(struct snd_pcm_substream *substream, int cmd);
 230
 231static void snd_rme32_proc_init(struct rme32 * rme32);
 232
 233static int snd_rme32_create_switches(struct snd_card *card, struct rme32 * rme32);
 234
 235static inline unsigned int snd_rme32_pcm_byteptr(struct rme32 * rme32)
 236{
 237        return (readl(rme32->iobase + RME32_IO_GET_POS)
 238                & RME32_RCR_AUDIO_ADDR_MASK);
 239}
 240
 241/* silence callback for halfduplex mode */
 242static int snd_rme32_playback_silence(struct snd_pcm_substream *substream,
 243                                      int channel, unsigned long pos,
 244                                      unsigned long count)
 245{
 246        struct rme32 *rme32 = snd_pcm_substream_chip(substream);
 247
 248        memset_io(rme32->iobase + RME32_IO_DATA_BUFFER + pos, 0, count);
 249        return 0;
 250}
 251
 252/* copy callback for halfduplex mode */
 253static int snd_rme32_playback_copy(struct snd_pcm_substream *substream,
 254                                   int channel, unsigned long pos,
 255                                   void __user *src, unsigned long count)
 256{
 257        struct rme32 *rme32 = snd_pcm_substream_chip(substream);
 258
 259        if (copy_from_user_toio(rme32->iobase + RME32_IO_DATA_BUFFER + pos,
 260                                src, count))
 261                return -EFAULT;
 262        return 0;
 263}
 264
 265static int snd_rme32_playback_copy_kernel(struct snd_pcm_substream *substream,
 266                                          int channel, unsigned long pos,
 267                                          void *src, unsigned long count)
 268{
 269        struct rme32 *rme32 = snd_pcm_substream_chip(substream);
 270
 271        memcpy_toio(rme32->iobase + RME32_IO_DATA_BUFFER + pos, src, count);
 272        return 0;
 273}
 274
 275/* copy callback for halfduplex mode */
 276static int snd_rme32_capture_copy(struct snd_pcm_substream *substream,
 277                                  int channel, unsigned long pos,
 278                                  void __user *dst, unsigned long count)
 279{
 280        struct rme32 *rme32 = snd_pcm_substream_chip(substream);
 281
 282        if (copy_to_user_fromio(dst,
 283                            rme32->iobase + RME32_IO_DATA_BUFFER + pos,
 284                            count))
 285                return -EFAULT;
 286        return 0;
 287}
 288
 289static int snd_rme32_capture_copy_kernel(struct snd_pcm_substream *substream,
 290                                         int channel, unsigned long pos,
 291                                         void *dst, unsigned long count)
 292{
 293        struct rme32 *rme32 = snd_pcm_substream_chip(substream);
 294
 295        memcpy_fromio(dst, rme32->iobase + RME32_IO_DATA_BUFFER + pos, count);
 296        return 0;
 297}
 298
 299/*
 300 * SPDIF I/O capabilities (half-duplex mode)
 301 */
 302static const struct snd_pcm_hardware snd_rme32_spdif_info = {
 303        .info =         (SNDRV_PCM_INFO_MMAP_IOMEM |
 304                         SNDRV_PCM_INFO_MMAP_VALID |
 305                         SNDRV_PCM_INFO_INTERLEAVED | 
 306                         SNDRV_PCM_INFO_PAUSE |
 307                         SNDRV_PCM_INFO_SYNC_START |
 308                         SNDRV_PCM_INFO_SYNC_APPLPTR),
 309        .formats =      (SNDRV_PCM_FMTBIT_S16_LE | 
 310                         SNDRV_PCM_FMTBIT_S32_LE),
 311        .rates =        (SNDRV_PCM_RATE_32000 |
 312                         SNDRV_PCM_RATE_44100 | 
 313                         SNDRV_PCM_RATE_48000),
 314        .rate_min =     32000,
 315        .rate_max =     48000,
 316        .channels_min = 2,
 317        .channels_max = 2,
 318        .buffer_bytes_max = RME32_BUFFER_SIZE,
 319        .period_bytes_min = RME32_BLOCK_SIZE,
 320        .period_bytes_max = RME32_BLOCK_SIZE,
 321        .periods_min =  RME32_BUFFER_SIZE / RME32_BLOCK_SIZE,
 322        .periods_max =  RME32_BUFFER_SIZE / RME32_BLOCK_SIZE,
 323        .fifo_size =    0,
 324};
 325
 326/*
 327 * ADAT I/O capabilities (half-duplex mode)
 328 */
 329static const struct snd_pcm_hardware snd_rme32_adat_info =
 330{
 331        .info =              (SNDRV_PCM_INFO_MMAP_IOMEM |
 332                              SNDRV_PCM_INFO_MMAP_VALID |
 333                              SNDRV_PCM_INFO_INTERLEAVED |
 334                              SNDRV_PCM_INFO_PAUSE |
 335                              SNDRV_PCM_INFO_SYNC_START |
 336                              SNDRV_PCM_INFO_SYNC_APPLPTR),
 337        .formats=            SNDRV_PCM_FMTBIT_S16_LE,
 338        .rates =             (SNDRV_PCM_RATE_44100 | 
 339                              SNDRV_PCM_RATE_48000),
 340        .rate_min =          44100,
 341        .rate_max =          48000,
 342        .channels_min =      8,
 343        .channels_max =      8,
 344        .buffer_bytes_max =  RME32_BUFFER_SIZE,
 345        .period_bytes_min =  RME32_BLOCK_SIZE,
 346        .period_bytes_max =  RME32_BLOCK_SIZE,
 347        .periods_min =      RME32_BUFFER_SIZE / RME32_BLOCK_SIZE,
 348        .periods_max =      RME32_BUFFER_SIZE / RME32_BLOCK_SIZE,
 349        .fifo_size =        0,
 350};
 351
 352/*
 353 * SPDIF I/O capabilities (full-duplex mode)
 354 */
 355static const struct snd_pcm_hardware snd_rme32_spdif_fd_info = {
 356        .info =         (SNDRV_PCM_INFO_MMAP |
 357                         SNDRV_PCM_INFO_MMAP_VALID |
 358                         SNDRV_PCM_INFO_INTERLEAVED | 
 359                         SNDRV_PCM_INFO_PAUSE |
 360                         SNDRV_PCM_INFO_SYNC_START |
 361                         SNDRV_PCM_INFO_SYNC_APPLPTR),
 362        .formats =      (SNDRV_PCM_FMTBIT_S16_LE | 
 363                         SNDRV_PCM_FMTBIT_S32_LE),
 364        .rates =        (SNDRV_PCM_RATE_32000 |
 365                         SNDRV_PCM_RATE_44100 | 
 366                         SNDRV_PCM_RATE_48000),
 367        .rate_min =     32000,
 368        .rate_max =     48000,
 369        .channels_min = 2,
 370        .channels_max = 2,
 371        .buffer_bytes_max = RME32_MID_BUFFER_SIZE,
 372        .period_bytes_min = RME32_BLOCK_SIZE,
 373        .period_bytes_max = RME32_BLOCK_SIZE,
 374        .periods_min =  2,
 375        .periods_max =  RME32_MID_BUFFER_SIZE / RME32_BLOCK_SIZE,
 376        .fifo_size =    0,
 377};
 378
 379/*
 380 * ADAT I/O capabilities (full-duplex mode)
 381 */
 382static const struct snd_pcm_hardware snd_rme32_adat_fd_info =
 383{
 384        .info =              (SNDRV_PCM_INFO_MMAP |
 385                              SNDRV_PCM_INFO_MMAP_VALID |
 386                              SNDRV_PCM_INFO_INTERLEAVED |
 387                              SNDRV_PCM_INFO_PAUSE |
 388                              SNDRV_PCM_INFO_SYNC_START |
 389                              SNDRV_PCM_INFO_SYNC_APPLPTR),
 390        .formats=            SNDRV_PCM_FMTBIT_S16_LE,
 391        .rates =             (SNDRV_PCM_RATE_44100 | 
 392                              SNDRV_PCM_RATE_48000),
 393        .rate_min =          44100,
 394        .rate_max =          48000,
 395        .channels_min =      8,
 396        .channels_max =      8,
 397        .buffer_bytes_max =  RME32_MID_BUFFER_SIZE,
 398        .period_bytes_min =  RME32_BLOCK_SIZE,
 399        .period_bytes_max =  RME32_BLOCK_SIZE,
 400        .periods_min =      2,
 401        .periods_max =      RME32_MID_BUFFER_SIZE / RME32_BLOCK_SIZE,
 402        .fifo_size =        0,
 403};
 404
 405static void snd_rme32_reset_dac(struct rme32 *rme32)
 406{
 407        writel(rme32->wcreg | RME32_WCR_PD,
 408               rme32->iobase + RME32_IO_CONTROL_REGISTER);
 409        writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
 410}
 411
 412static int snd_rme32_playback_getrate(struct rme32 * rme32)
 413{
 414        int rate;
 415
 416        rate = ((rme32->wcreg >> RME32_WCR_BITPOS_FREQ_0) & 1) +
 417               (((rme32->wcreg >> RME32_WCR_BITPOS_FREQ_1) & 1) << 1);
 418        switch (rate) {
 419        case 1:
 420                rate = 32000;
 421                break;
 422        case 2:
 423                rate = 44100;
 424                break;
 425        case 3:
 426                rate = 48000;
 427                break;
 428        default:
 429                return -1;
 430        }
 431        return (rme32->wcreg & RME32_WCR_DS_BM) ? rate << 1 : rate;
 432}
 433
 434static int snd_rme32_capture_getrate(struct rme32 * rme32, int *is_adat)
 435{
 436        int n;
 437
 438        *is_adat = 0;
 439        if (rme32->rcreg & RME32_RCR_LOCK) { 
 440                /* ADAT rate */
 441                *is_adat = 1;
 442        }
 443        if (rme32->rcreg & RME32_RCR_ERF) {
 444                return -1;
 445        }
 446
 447        /* S/PDIF rate */
 448        n = ((rme32->rcreg >> RME32_RCR_BITPOS_F0) & 1) +
 449                (((rme32->rcreg >> RME32_RCR_BITPOS_F1) & 1) << 1) +
 450                (((rme32->rcreg >> RME32_RCR_BITPOS_F2) & 1) << 2);
 451
 452        if (RME32_PRO_WITH_8414(rme32))
 453                switch (n) {    /* supporting the CS8414 */
 454                case 0:
 455                case 1:
 456                case 2:
 457                        return -1;
 458                case 3:
 459                        return 96000;
 460                case 4:
 461                        return 88200;
 462                case 5:
 463                        return 48000;
 464                case 6:
 465                        return 44100;
 466                case 7:
 467                        return 32000;
 468                default:
 469                        return -1;
 470                } 
 471        else
 472                switch (n) {    /* supporting the CS8412 */
 473                case 0:
 474                        return -1;
 475                case 1:
 476                        return 48000;
 477                case 2:
 478                        return 44100;
 479                case 3:
 480                        return 32000;
 481                case 4:
 482                        return 48000;
 483                case 5:
 484                        return 44100;
 485                case 6:
 486                        return 44056;
 487                case 7:
 488                        return 32000;
 489                default:
 490                        break;
 491                }
 492        return -1;
 493}
 494
 495static int snd_rme32_playback_setrate(struct rme32 * rme32, int rate)
 496{
 497        int ds;
 498
 499        ds = rme32->wcreg & RME32_WCR_DS_BM;
 500        switch (rate) {
 501        case 32000:
 502                rme32->wcreg &= ~RME32_WCR_DS_BM;
 503                rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_0) & 
 504                        ~RME32_WCR_FREQ_1;
 505                break;
 506        case 44100:
 507                rme32->wcreg &= ~RME32_WCR_DS_BM;
 508                rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_1) & 
 509                        ~RME32_WCR_FREQ_0;
 510                break;
 511        case 48000:
 512                rme32->wcreg &= ~RME32_WCR_DS_BM;
 513                rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_0) | 
 514                        RME32_WCR_FREQ_1;
 515                break;
 516        case 64000:
 517                if (rme32->pci->device != PCI_DEVICE_ID_RME_DIGI32_PRO)
 518                        return -EINVAL;
 519                rme32->wcreg |= RME32_WCR_DS_BM;
 520                rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_0) & 
 521                        ~RME32_WCR_FREQ_1;
 522                break;
 523        case 88200:
 524                if (rme32->pci->device != PCI_DEVICE_ID_RME_DIGI32_PRO)
 525                        return -EINVAL;
 526                rme32->wcreg |= RME32_WCR_DS_BM;
 527                rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_1) & 
 528                        ~RME32_WCR_FREQ_0;
 529                break;
 530        case 96000:
 531                if (rme32->pci->device != PCI_DEVICE_ID_RME_DIGI32_PRO)
 532                        return -EINVAL;
 533                rme32->wcreg |= RME32_WCR_DS_BM;
 534                rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_0) | 
 535                        RME32_WCR_FREQ_1;
 536                break;
 537        default:
 538                return -EINVAL;
 539        }
 540        if ((!ds && rme32->wcreg & RME32_WCR_DS_BM) ||
 541            (ds && !(rme32->wcreg & RME32_WCR_DS_BM)))
 542        {
 543                /* change to/from double-speed: reset the DAC (if available) */
 544                snd_rme32_reset_dac(rme32);
 545        } else {
 546                writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
 547        }
 548        return 0;
 549}
 550
 551static int snd_rme32_setclockmode(struct rme32 * rme32, int mode)
 552{
 553        switch (mode) {
 554        case RME32_CLOCKMODE_SLAVE:
 555                /* AutoSync */
 556                rme32->wcreg = (rme32->wcreg & ~RME32_WCR_FREQ_0) & 
 557                        ~RME32_WCR_FREQ_1;
 558                break;
 559        case RME32_CLOCKMODE_MASTER_32:
 560                /* Internal 32.0kHz */
 561                rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_0) & 
 562                        ~RME32_WCR_FREQ_1;
 563                break;
 564        case RME32_CLOCKMODE_MASTER_44:
 565                /* Internal 44.1kHz */
 566                rme32->wcreg = (rme32->wcreg & ~RME32_WCR_FREQ_0) | 
 567                        RME32_WCR_FREQ_1;
 568                break;
 569        case RME32_CLOCKMODE_MASTER_48:
 570                /* Internal 48.0kHz */
 571                rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_0) | 
 572                        RME32_WCR_FREQ_1;
 573                break;
 574        default:
 575                return -EINVAL;
 576        }
 577        writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
 578        return 0;
 579}
 580
 581static int snd_rme32_getclockmode(struct rme32 * rme32)
 582{
 583        return ((rme32->wcreg >> RME32_WCR_BITPOS_FREQ_0) & 1) +
 584            (((rme32->wcreg >> RME32_WCR_BITPOS_FREQ_1) & 1) << 1);
 585}
 586
 587static int snd_rme32_setinputtype(struct rme32 * rme32, int type)
 588{
 589        switch (type) {
 590        case RME32_INPUT_OPTICAL:
 591                rme32->wcreg = (rme32->wcreg & ~RME32_WCR_INP_0) & 
 592                        ~RME32_WCR_INP_1;
 593                break;
 594        case RME32_INPUT_COAXIAL:
 595                rme32->wcreg = (rme32->wcreg | RME32_WCR_INP_0) & 
 596                        ~RME32_WCR_INP_1;
 597                break;
 598        case RME32_INPUT_INTERNAL:
 599                rme32->wcreg = (rme32->wcreg & ~RME32_WCR_INP_0) | 
 600                        RME32_WCR_INP_1;
 601                break;
 602        case RME32_INPUT_XLR:
 603                rme32->wcreg = (rme32->wcreg | RME32_WCR_INP_0) | 
 604                        RME32_WCR_INP_1;
 605                break;
 606        default:
 607                return -EINVAL;
 608        }
 609        writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
 610        return 0;
 611}
 612
 613static int snd_rme32_getinputtype(struct rme32 * rme32)
 614{
 615        return ((rme32->wcreg >> RME32_WCR_BITPOS_INP_0) & 1) +
 616            (((rme32->wcreg >> RME32_WCR_BITPOS_INP_1) & 1) << 1);
 617}
 618
 619static void
 620snd_rme32_setframelog(struct rme32 * rme32, int n_channels, int is_playback)
 621{
 622        int frlog;
 623
 624        if (n_channels == 2) {
 625                frlog = 1;
 626        } else {
 627                /* assume 8 channels */
 628                frlog = 3;
 629        }
 630        if (is_playback) {
 631                frlog += (rme32->wcreg & RME32_WCR_MODE24) ? 2 : 1;
 632                rme32->playback_frlog = frlog;
 633        } else {
 634                frlog += (rme32->wcreg & RME32_WCR_MODE24) ? 2 : 1;
 635                rme32->capture_frlog = frlog;
 636        }
 637}
 638
 639static int snd_rme32_setformat(struct rme32 *rme32, snd_pcm_format_t format)
 640{
 641        switch (format) {
 642        case SNDRV_PCM_FORMAT_S16_LE:
 643                rme32->wcreg &= ~RME32_WCR_MODE24;
 644                break;
 645        case SNDRV_PCM_FORMAT_S32_LE:
 646                rme32->wcreg |= RME32_WCR_MODE24;
 647                break;
 648        default:
 649                return -EINVAL;
 650        }
 651        writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
 652        return 0;
 653}
 654
 655static int
 656snd_rme32_playback_hw_params(struct snd_pcm_substream *substream,
 657                             struct snd_pcm_hw_params *params)
 658{
 659        int err, rate, dummy;
 660        struct rme32 *rme32 = snd_pcm_substream_chip(substream);
 661        struct snd_pcm_runtime *runtime = substream->runtime;
 662
 663        if (!rme32->fullduplex_mode) {
 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        rate = 0;
 672        if (rme32->rcreg & RME32_RCR_KMODE)
 673                rate = snd_rme32_capture_getrate(rme32, &dummy);
 674        if (rate > 0) {
 675                /* AutoSync */
 676                if ((int)params_rate(params) != rate) {
 677                        spin_unlock_irq(&rme32->lock);
 678                        return -EIO;
 679                }
 680        } else {
 681                err = snd_rme32_playback_setrate(rme32, params_rate(params));
 682                if (err < 0) {
 683                        spin_unlock_irq(&rme32->lock);
 684                        return err;
 685                }
 686        }
 687        err = snd_rme32_setformat(rme32, params_format(params));
 688        if (err < 0) {
 689                spin_unlock_irq(&rme32->lock);
 690                return err;
 691        }
 692
 693        snd_rme32_setframelog(rme32, params_channels(params), 1);
 694        if (rme32->capture_periodsize != 0) {
 695                if (params_period_size(params) << rme32->playback_frlog != rme32->capture_periodsize) {
 696                        spin_unlock_irq(&rme32->lock);
 697                        return -EBUSY;
 698                }
 699        }
 700        rme32->playback_periodsize = params_period_size(params) << rme32->playback_frlog;
 701        /* S/PDIF setup */
 702        if ((rme32->wcreg & RME32_WCR_ADAT) == 0) {
 703                rme32->wcreg &= ~(RME32_WCR_PRO | RME32_WCR_EMP);
 704                rme32->wcreg |= rme32->wcreg_spdif_stream;
 705                writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
 706        }
 707        spin_unlock_irq(&rme32->lock);
 708
 709        return 0;
 710}
 711
 712static int
 713snd_rme32_capture_hw_params(struct snd_pcm_substream *substream,
 714                            struct snd_pcm_hw_params *params)
 715{
 716        int err, isadat, rate;
 717        struct rme32 *rme32 = snd_pcm_substream_chip(substream);
 718        struct snd_pcm_runtime *runtime = substream->runtime;
 719
 720        if (!rme32->fullduplex_mode) {
 721                runtime->dma_area = (void __force *)rme32->iobase +
 722                                        RME32_IO_DATA_BUFFER;
 723                runtime->dma_addr = rme32->port + RME32_IO_DATA_BUFFER;
 724                runtime->dma_bytes = RME32_BUFFER_SIZE;
 725        }
 726
 727        spin_lock_irq(&rme32->lock);
 728        /* enable AutoSync for record-preparing */
 729        rme32->wcreg |= RME32_WCR_AUTOSYNC;
 730        writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
 731
 732        err = snd_rme32_setformat(rme32, params_format(params));
 733        if (err < 0) {
 734                spin_unlock_irq(&rme32->lock);
 735                return err;
 736        }
 737        err = snd_rme32_playback_setrate(rme32, params_rate(params));
 738        if (err < 0) {
 739                spin_unlock_irq(&rme32->lock);
 740                return err;
 741        }
 742        rate = snd_rme32_capture_getrate(rme32, &isadat);
 743        if (rate > 0) {
 744                if ((int)params_rate(params) != rate) {
 745                        spin_unlock_irq(&rme32->lock);
 746                        return -EIO;                    
 747                }
 748                if ((isadat && runtime->hw.channels_min == 2) ||
 749                    (!isadat && runtime->hw.channels_min == 8)) {
 750                        spin_unlock_irq(&rme32->lock);
 751                        return -EIO;
 752                }
 753        }
 754        /* AutoSync off for recording */
 755        rme32->wcreg &= ~RME32_WCR_AUTOSYNC;
 756        writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
 757
 758        snd_rme32_setframelog(rme32, params_channels(params), 0);
 759        if (rme32->playback_periodsize != 0) {
 760                if (params_period_size(params) << rme32->capture_frlog !=
 761                    rme32->playback_periodsize) {
 762                        spin_unlock_irq(&rme32->lock);
 763                        return -EBUSY;
 764                }
 765        }
 766        rme32->capture_periodsize =
 767            params_period_size(params) << rme32->capture_frlog;
 768        spin_unlock_irq(&rme32->lock);
 769
 770        return 0;
 771}
 772
 773static void snd_rme32_pcm_start(struct rme32 * rme32, int from_pause)
 774{
 775        if (!from_pause) {
 776                writel(0, rme32->iobase + RME32_IO_RESET_POS);
 777        }
 778
 779        rme32->wcreg |= RME32_WCR_START;
 780        writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
 781}
 782
 783static void snd_rme32_pcm_stop(struct rme32 * rme32, int to_pause)
 784{
 785        /*
 786         * Check if there is an unconfirmed IRQ, if so confirm it, or else
 787         * the hardware will not stop generating interrupts
 788         */
 789        rme32->rcreg = readl(rme32->iobase + RME32_IO_CONTROL_REGISTER);
 790        if (rme32->rcreg & RME32_RCR_IRQ) {
 791                writel(0, rme32->iobase + RME32_IO_CONFIRM_ACTION_IRQ);
 792        }
 793        rme32->wcreg &= ~RME32_WCR_START;
 794        if (rme32->wcreg & RME32_WCR_SEL)
 795                rme32->wcreg |= RME32_WCR_MUTE;
 796        writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
 797        if (! to_pause)
 798                writel(0, rme32->iobase + RME32_IO_RESET_POS);
 799}
 800
 801static irqreturn_t snd_rme32_interrupt(int irq, void *dev_id)
 802{
 803        struct rme32 *rme32 = (struct rme32 *) dev_id;
 804
 805        rme32->rcreg = readl(rme32->iobase + RME32_IO_CONTROL_REGISTER);
 806        if (!(rme32->rcreg & RME32_RCR_IRQ)) {
 807                return IRQ_NONE;
 808        } else {
 809                if (rme32->capture_substream) {
 810                        snd_pcm_period_elapsed(rme32->capture_substream);
 811                }
 812                if (rme32->playback_substream) {
 813                        snd_pcm_period_elapsed(rme32->playback_substream);
 814                }
 815                writel(0, rme32->iobase + RME32_IO_CONFIRM_ACTION_IRQ);
 816        }
 817        return IRQ_HANDLED;
 818}
 819
 820static const unsigned int period_bytes[] = { RME32_BLOCK_SIZE };
 821
 822static const struct snd_pcm_hw_constraint_list hw_constraints_period_bytes = {
 823        .count = ARRAY_SIZE(period_bytes),
 824        .list = period_bytes,
 825        .mask = 0
 826};
 827
 828static void snd_rme32_set_buffer_constraint(struct rme32 *rme32, struct snd_pcm_runtime *runtime)
 829{
 830        if (! rme32->fullduplex_mode) {
 831                snd_pcm_hw_constraint_single(runtime,
 832                                             SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
 833                                             RME32_BUFFER_SIZE);
 834                snd_pcm_hw_constraint_list(runtime, 0,
 835                                           SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
 836                                           &hw_constraints_period_bytes);
 837        }
 838}
 839
 840static int snd_rme32_playback_spdif_open(struct snd_pcm_substream *substream)
 841{
 842        int rate, dummy;
 843        struct rme32 *rme32 = snd_pcm_substream_chip(substream);
 844        struct snd_pcm_runtime *runtime = substream->runtime;
 845
 846        snd_pcm_set_sync(substream);
 847
 848        spin_lock_irq(&rme32->lock);
 849        if (rme32->playback_substream != NULL) {
 850                spin_unlock_irq(&rme32->lock);
 851                return -EBUSY;
 852        }
 853        rme32->wcreg &= ~RME32_WCR_ADAT;
 854        writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
 855        rme32->playback_substream = substream;
 856        spin_unlock_irq(&rme32->lock);
 857
 858        if (rme32->fullduplex_mode)
 859                runtime->hw = snd_rme32_spdif_fd_info;
 860        else
 861                runtime->hw = snd_rme32_spdif_info;
 862        if (rme32->pci->device == PCI_DEVICE_ID_RME_DIGI32_PRO) {
 863                runtime->hw.rates |= SNDRV_PCM_RATE_64000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000;
 864                runtime->hw.rate_max = 96000;
 865        }
 866        rate = 0;
 867        if (rme32->rcreg & RME32_RCR_KMODE)
 868                rate = snd_rme32_capture_getrate(rme32, &dummy);
 869        if (rate > 0) {
 870                /* AutoSync */
 871                runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
 872                runtime->hw.rate_min = rate;
 873                runtime->hw.rate_max = rate;
 874        }       
 875
 876        snd_rme32_set_buffer_constraint(rme32, runtime);
 877
 878        rme32->wcreg_spdif_stream = rme32->wcreg_spdif;
 879        rme32->spdif_ctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
 880        snd_ctl_notify(rme32->card, SNDRV_CTL_EVENT_MASK_VALUE |
 881                       SNDRV_CTL_EVENT_MASK_INFO, &rme32->spdif_ctl->id);
 882        return 0;
 883}
 884
 885static int snd_rme32_capture_spdif_open(struct snd_pcm_substream *substream)
 886{
 887        int isadat, rate;
 888        struct rme32 *rme32 = snd_pcm_substream_chip(substream);
 889        struct snd_pcm_runtime *runtime = substream->runtime;
 890
 891        snd_pcm_set_sync(substream);
 892
 893        spin_lock_irq(&rme32->lock);
 894        if (rme32->capture_substream != NULL) {
 895                spin_unlock_irq(&rme32->lock);
 896                return -EBUSY;
 897        }
 898        rme32->capture_substream = substream;
 899        spin_unlock_irq(&rme32->lock);
 900
 901        if (rme32->fullduplex_mode)
 902                runtime->hw = snd_rme32_spdif_fd_info;
 903        else
 904                runtime->hw = snd_rme32_spdif_info;
 905        if (RME32_PRO_WITH_8414(rme32)) {
 906                runtime->hw.rates |= SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000;
 907                runtime->hw.rate_max = 96000;
 908        }
 909        rate = snd_rme32_capture_getrate(rme32, &isadat);
 910        if (rate > 0) {
 911                if (isadat) {
 912                        return -EIO;
 913                }
 914                runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
 915                runtime->hw.rate_min = rate;
 916                runtime->hw.rate_max = rate;
 917        }
 918
 919        snd_rme32_set_buffer_constraint(rme32, runtime);
 920
 921        return 0;
 922}
 923
 924static int
 925snd_rme32_playback_adat_open(struct snd_pcm_substream *substream)
 926{
 927        int rate, dummy;
 928        struct rme32 *rme32 = snd_pcm_substream_chip(substream);
 929        struct snd_pcm_runtime *runtime = substream->runtime;
 930        
 931        snd_pcm_set_sync(substream);
 932
 933        spin_lock_irq(&rme32->lock);    
 934        if (rme32->playback_substream != NULL) {
 935                spin_unlock_irq(&rme32->lock);
 936                return -EBUSY;
 937        }
 938        rme32->wcreg |= RME32_WCR_ADAT;
 939        writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
 940        rme32->playback_substream = substream;
 941        spin_unlock_irq(&rme32->lock);
 942        
 943        if (rme32->fullduplex_mode)
 944                runtime->hw = snd_rme32_adat_fd_info;
 945        else
 946                runtime->hw = snd_rme32_adat_info;
 947        rate = 0;
 948        if (rme32->rcreg & RME32_RCR_KMODE)
 949                rate = snd_rme32_capture_getrate(rme32, &dummy);
 950        if (rate > 0) {
 951                /* AutoSync */
 952                runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
 953                runtime->hw.rate_min = rate;
 954                runtime->hw.rate_max = rate;
 955        }        
 956
 957        snd_rme32_set_buffer_constraint(rme32, runtime);
 958        return 0;
 959}
 960
 961static int
 962snd_rme32_capture_adat_open(struct snd_pcm_substream *substream)
 963{
 964        int isadat, rate;
 965        struct rme32 *rme32 = snd_pcm_substream_chip(substream);
 966        struct snd_pcm_runtime *runtime = substream->runtime;
 967
 968        if (rme32->fullduplex_mode)
 969                runtime->hw = snd_rme32_adat_fd_info;
 970        else
 971                runtime->hw = snd_rme32_adat_info;
 972        rate = snd_rme32_capture_getrate(rme32, &isadat);
 973        if (rate > 0) {
 974                if (!isadat) {
 975                        return -EIO;
 976                }
 977                runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
 978                runtime->hw.rate_min = rate;
 979                runtime->hw.rate_max = rate;
 980        }
 981
 982        snd_pcm_set_sync(substream);
 983        
 984        spin_lock_irq(&rme32->lock);    
 985        if (rme32->capture_substream != NULL) {
 986                spin_unlock_irq(&rme32->lock);
 987                return -EBUSY;
 988        }
 989        rme32->capture_substream = substream;
 990        spin_unlock_irq(&rme32->lock);
 991
 992        snd_rme32_set_buffer_constraint(rme32, runtime);
 993        return 0;
 994}
 995
 996static int snd_rme32_playback_close(struct snd_pcm_substream *substream)
 997{
 998        struct rme32 *rme32 = snd_pcm_substream_chip(substream);
 999        int spdif = 0;
1000
1001        spin_lock_irq(&rme32->lock);
1002        rme32->playback_substream = NULL;
1003        rme32->playback_periodsize = 0;
1004        spdif = (rme32->wcreg & RME32_WCR_ADAT) == 0;
1005        spin_unlock_irq(&rme32->lock);
1006        if (spdif) {
1007                rme32->spdif_ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1008                snd_ctl_notify(rme32->card, SNDRV_CTL_EVENT_MASK_VALUE |
1009                               SNDRV_CTL_EVENT_MASK_INFO,
1010                               &rme32->spdif_ctl->id);
1011        }
1012        return 0;
1013}
1014
1015static int snd_rme32_capture_close(struct snd_pcm_substream *substream)
1016{
1017        struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1018
1019        spin_lock_irq(&rme32->lock);
1020        rme32->capture_substream = NULL;
1021        rme32->capture_periodsize = 0;
1022        spin_unlock_irq(&rme32->lock);
1023        return 0;
1024}
1025
1026static int snd_rme32_playback_prepare(struct snd_pcm_substream *substream)
1027{
1028        struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1029
1030        spin_lock_irq(&rme32->lock);
1031        if (rme32->fullduplex_mode) {
1032                memset(&rme32->playback_pcm, 0, sizeof(rme32->playback_pcm));
1033                rme32->playback_pcm.hw_buffer_size = RME32_BUFFER_SIZE;
1034                rme32->playback_pcm.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
1035        } else {
1036                writel(0, rme32->iobase + RME32_IO_RESET_POS);
1037        }
1038        if (rme32->wcreg & RME32_WCR_SEL)
1039                rme32->wcreg &= ~RME32_WCR_MUTE;
1040        writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
1041        spin_unlock_irq(&rme32->lock);
1042        return 0;
1043}
1044
1045static int snd_rme32_capture_prepare(struct snd_pcm_substream *substream)
1046{
1047        struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1048
1049        spin_lock_irq(&rme32->lock);
1050        if (rme32->fullduplex_mode) {
1051                memset(&rme32->capture_pcm, 0, sizeof(rme32->capture_pcm));
1052                rme32->capture_pcm.hw_buffer_size = RME32_BUFFER_SIZE;
1053                rme32->capture_pcm.hw_queue_size = RME32_BUFFER_SIZE / 2;
1054                rme32->capture_pcm.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
1055        } else {
1056                writel(0, rme32->iobase + RME32_IO_RESET_POS);
1057        }
1058        spin_unlock_irq(&rme32->lock);
1059        return 0;
1060}
1061
1062static int
1063snd_rme32_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
1064{
1065        struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1066        struct snd_pcm_substream *s;
1067
1068        spin_lock(&rme32->lock);
1069        snd_pcm_group_for_each_entry(s, substream) {
1070                if (s != rme32->playback_substream &&
1071                    s != rme32->capture_substream)
1072                        continue;
1073                switch (cmd) {
1074                case SNDRV_PCM_TRIGGER_START:
1075                        rme32->running |= (1 << s->stream);
1076                        if (rme32->fullduplex_mode) {
1077                                /* remember the current DMA position */
1078                                if (s == rme32->playback_substream) {
1079                                        rme32->playback_pcm.hw_io =
1080                                        rme32->playback_pcm.hw_data = snd_rme32_pcm_byteptr(rme32);
1081                                } else {
1082                                        rme32->capture_pcm.hw_io =
1083                                        rme32->capture_pcm.hw_data = snd_rme32_pcm_byteptr(rme32);
1084                                }
1085                        }
1086                        break;
1087                case SNDRV_PCM_TRIGGER_STOP:
1088                        rme32->running &= ~(1 << s->stream);
1089                        break;
1090                }
1091                snd_pcm_trigger_done(s, substream);
1092        }
1093        
1094        switch (cmd) {
1095        case SNDRV_PCM_TRIGGER_START:
1096                if (rme32->running && ! RME32_ISWORKING(rme32))
1097                        snd_rme32_pcm_start(rme32, 0);
1098                break;
1099        case SNDRV_PCM_TRIGGER_STOP:
1100                if (! rme32->running && RME32_ISWORKING(rme32))
1101                        snd_rme32_pcm_stop(rme32, 0);
1102                break;
1103        case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1104                if (rme32->running && RME32_ISWORKING(rme32))
1105                        snd_rme32_pcm_stop(rme32, 1);
1106                break;
1107        case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1108                if (rme32->running && ! RME32_ISWORKING(rme32))
1109                        snd_rme32_pcm_start(rme32, 1);
1110                break;
1111        }
1112        spin_unlock(&rme32->lock);
1113        return 0;
1114}
1115
1116/* pointer callback for halfduplex mode */
1117static snd_pcm_uframes_t
1118snd_rme32_playback_pointer(struct snd_pcm_substream *substream)
1119{
1120        struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1121        return snd_rme32_pcm_byteptr(rme32) >> rme32->playback_frlog;
1122}
1123
1124static snd_pcm_uframes_t
1125snd_rme32_capture_pointer(struct snd_pcm_substream *substream)
1126{
1127        struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1128        return snd_rme32_pcm_byteptr(rme32) >> rme32->capture_frlog;
1129}
1130
1131
1132/* ack and pointer callbacks for fullduplex mode */
1133static void snd_rme32_pb_trans_copy(struct snd_pcm_substream *substream,
1134                                    struct snd_pcm_indirect *rec, size_t bytes)
1135{
1136        struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1137        memcpy_toio(rme32->iobase + RME32_IO_DATA_BUFFER + rec->hw_data,
1138                    substream->runtime->dma_area + rec->sw_data, bytes);
1139}
1140
1141static int snd_rme32_playback_fd_ack(struct snd_pcm_substream *substream)
1142{
1143        struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1144        struct snd_pcm_indirect *rec, *cprec;
1145
1146        rec = &rme32->playback_pcm;
1147        cprec = &rme32->capture_pcm;
1148        spin_lock(&rme32->lock);
1149        rec->hw_queue_size = RME32_BUFFER_SIZE;
1150        if (rme32->running & (1 << SNDRV_PCM_STREAM_CAPTURE))
1151                rec->hw_queue_size -= cprec->hw_ready;
1152        spin_unlock(&rme32->lock);
1153        return snd_pcm_indirect_playback_transfer(substream, rec,
1154                                                  snd_rme32_pb_trans_copy);
1155}
1156
1157static void snd_rme32_cp_trans_copy(struct snd_pcm_substream *substream,
1158                                    struct snd_pcm_indirect *rec, size_t bytes)
1159{
1160        struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1161        memcpy_fromio(substream->runtime->dma_area + rec->sw_data,
1162                      rme32->iobase + RME32_IO_DATA_BUFFER + rec->hw_data,
1163                      bytes);
1164}
1165
1166static int snd_rme32_capture_fd_ack(struct snd_pcm_substream *substream)
1167{
1168        struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1169        return snd_pcm_indirect_capture_transfer(substream, &rme32->capture_pcm,
1170                                                 snd_rme32_cp_trans_copy);
1171}
1172
1173static snd_pcm_uframes_t
1174snd_rme32_playback_fd_pointer(struct snd_pcm_substream *substream)
1175{
1176        struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1177        return snd_pcm_indirect_playback_pointer(substream, &rme32->playback_pcm,
1178                                                 snd_rme32_pcm_byteptr(rme32));
1179}
1180
1181static snd_pcm_uframes_t
1182snd_rme32_capture_fd_pointer(struct snd_pcm_substream *substream)
1183{
1184        struct rme32 *rme32 = snd_pcm_substream_chip(substream);
1185        return snd_pcm_indirect_capture_pointer(substream, &rme32->capture_pcm,
1186                                                snd_rme32_pcm_byteptr(rme32));
1187}
1188
1189/* for halfduplex mode */
1190static const struct snd_pcm_ops snd_rme32_playback_spdif_ops = {
1191        .open =         snd_rme32_playback_spdif_open,
1192        .close =        snd_rme32_playback_close,
1193        .hw_params =    snd_rme32_playback_hw_params,
1194        .prepare =      snd_rme32_playback_prepare,
1195        .trigger =      snd_rme32_pcm_trigger,
1196        .pointer =      snd_rme32_playback_pointer,
1197        .copy_user =    snd_rme32_playback_copy,
1198        .copy_kernel =  snd_rme32_playback_copy_kernel,
1199        .fill_silence = snd_rme32_playback_silence,
1200        .mmap =         snd_pcm_lib_mmap_iomem,
1201};
1202
1203static const struct snd_pcm_ops snd_rme32_capture_spdif_ops = {
1204        .open =         snd_rme32_capture_spdif_open,
1205        .close =        snd_rme32_capture_close,
1206        .hw_params =    snd_rme32_capture_hw_params,
1207        .prepare =      snd_rme32_capture_prepare,
1208        .trigger =      snd_rme32_pcm_trigger,
1209        .pointer =      snd_rme32_capture_pointer,
1210        .copy_user =    snd_rme32_capture_copy,
1211        .copy_kernel =  snd_rme32_capture_copy_kernel,
1212        .mmap =         snd_pcm_lib_mmap_iomem,
1213};
1214
1215static const struct snd_pcm_ops snd_rme32_playback_adat_ops = {
1216        .open =         snd_rme32_playback_adat_open,
1217        .close =        snd_rme32_playback_close,
1218        .hw_params =    snd_rme32_playback_hw_params,
1219        .prepare =      snd_rme32_playback_prepare,
1220        .trigger =      snd_rme32_pcm_trigger,
1221        .pointer =      snd_rme32_playback_pointer,
1222        .copy_user =    snd_rme32_playback_copy,
1223        .copy_kernel =  snd_rme32_playback_copy_kernel,
1224        .fill_silence = snd_rme32_playback_silence,
1225        .mmap =         snd_pcm_lib_mmap_iomem,
1226};
1227
1228static const struct snd_pcm_ops snd_rme32_capture_adat_ops = {
1229        .open =         snd_rme32_capture_adat_open,
1230        .close =        snd_rme32_capture_close,
1231        .hw_params =    snd_rme32_capture_hw_params,
1232        .prepare =      snd_rme32_capture_prepare,
1233        .trigger =      snd_rme32_pcm_trigger,
1234        .pointer =      snd_rme32_capture_pointer,
1235        .copy_user =    snd_rme32_capture_copy,
1236        .copy_kernel =  snd_rme32_capture_copy_kernel,
1237        .mmap =         snd_pcm_lib_mmap_iomem,
1238};
1239
1240/* for fullduplex mode */
1241static const struct snd_pcm_ops snd_rme32_playback_spdif_fd_ops = {
1242        .open =         snd_rme32_playback_spdif_open,
1243        .close =        snd_rme32_playback_close,
1244        .hw_params =    snd_rme32_playback_hw_params,
1245        .prepare =      snd_rme32_playback_prepare,
1246        .trigger =      snd_rme32_pcm_trigger,
1247        .pointer =      snd_rme32_playback_fd_pointer,
1248        .ack =          snd_rme32_playback_fd_ack,
1249};
1250
1251static const struct snd_pcm_ops snd_rme32_capture_spdif_fd_ops = {
1252        .open =         snd_rme32_capture_spdif_open,
1253        .close =        snd_rme32_capture_close,
1254        .hw_params =    snd_rme32_capture_hw_params,
1255        .prepare =      snd_rme32_capture_prepare,
1256        .trigger =      snd_rme32_pcm_trigger,
1257        .pointer =      snd_rme32_capture_fd_pointer,
1258        .ack =          snd_rme32_capture_fd_ack,
1259};
1260
1261static const struct snd_pcm_ops snd_rme32_playback_adat_fd_ops = {
1262        .open =         snd_rme32_playback_adat_open,
1263        .close =        snd_rme32_playback_close,
1264        .hw_params =    snd_rme32_playback_hw_params,
1265        .prepare =      snd_rme32_playback_prepare,
1266        .trigger =      snd_rme32_pcm_trigger,
1267        .pointer =      snd_rme32_playback_fd_pointer,
1268        .ack =          snd_rme32_playback_fd_ack,
1269};
1270
1271static const struct snd_pcm_ops snd_rme32_capture_adat_fd_ops = {
1272        .open =         snd_rme32_capture_adat_open,
1273        .close =        snd_rme32_capture_close,
1274        .hw_params =    snd_rme32_capture_hw_params,
1275        .prepare =      snd_rme32_capture_prepare,
1276        .trigger =      snd_rme32_pcm_trigger,
1277        .pointer =      snd_rme32_capture_fd_pointer,
1278        .ack =          snd_rme32_capture_fd_ack,
1279};
1280
1281static void snd_rme32_free(struct rme32 *rme32)
1282{
1283        if (rme32->irq >= 0)
1284                snd_rme32_pcm_stop(rme32, 0);
1285}
1286
1287static void snd_rme32_free_spdif_pcm(struct snd_pcm *pcm)
1288{
1289        struct rme32 *rme32 = (struct rme32 *) pcm->private_data;
1290        rme32->spdif_pcm = NULL;
1291}
1292
1293static void
1294snd_rme32_free_adat_pcm(struct snd_pcm *pcm)
1295{
1296        struct rme32 *rme32 = (struct rme32 *) pcm->private_data;
1297        rme32->adat_pcm = NULL;
1298}
1299
1300static int snd_rme32_create(struct rme32 *rme32)
1301{
1302        struct pci_dev *pci = rme32->pci;
1303        int err;
1304
1305        rme32->irq = -1;
1306        spin_lock_init(&rme32->lock);
1307
1308        err = pcim_enable_device(pci);
1309        if (err < 0)
1310                return err;
1311
1312        err = pci_request_regions(pci, "RME32");
1313        if (err < 0)
1314                return err;
1315        rme32->port = pci_resource_start(rme32->pci, 0);
1316
1317        rme32->iobase = devm_ioremap(&pci->dev, rme32->port, RME32_IO_SIZE);
1318        if (!rme32->iobase) {
1319                dev_err(rme32->card->dev,
1320                        "unable to remap memory region 0x%lx-0x%lx\n",
1321                        rme32->port, rme32->port + RME32_IO_SIZE - 1);
1322                return -ENOMEM;
1323        }
1324
1325        if (devm_request_irq(&pci->dev, pci->irq, snd_rme32_interrupt,
1326                             IRQF_SHARED, KBUILD_MODNAME, rme32)) {
1327                dev_err(rme32->card->dev, "unable to grab IRQ %d\n", pci->irq);
1328                return -EBUSY;
1329        }
1330        rme32->irq = pci->irq;
1331        rme32->card->sync_irq = rme32->irq;
1332
1333        /* read the card's revision number */
1334        pci_read_config_byte(pci, 8, &rme32->rev);
1335
1336        /* set up ALSA pcm device for S/PDIF */
1337        err = snd_pcm_new(rme32->card, "Digi32 IEC958", 0, 1, 1, &rme32->spdif_pcm);
1338        if (err < 0)
1339                return err;
1340        rme32->spdif_pcm->private_data = rme32;
1341        rme32->spdif_pcm->private_free = snd_rme32_free_spdif_pcm;
1342        strcpy(rme32->spdif_pcm->name, "Digi32 IEC958");
1343        if (rme32->fullduplex_mode) {
1344                snd_pcm_set_ops(rme32->spdif_pcm, SNDRV_PCM_STREAM_PLAYBACK,
1345                                &snd_rme32_playback_spdif_fd_ops);
1346                snd_pcm_set_ops(rme32->spdif_pcm, SNDRV_PCM_STREAM_CAPTURE,
1347                                &snd_rme32_capture_spdif_fd_ops);
1348                snd_pcm_set_managed_buffer_all(rme32->spdif_pcm, SNDRV_DMA_TYPE_CONTINUOUS,
1349                                               NULL, 0, RME32_MID_BUFFER_SIZE);
1350                rme32->spdif_pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
1351        } else {
1352                snd_pcm_set_ops(rme32->spdif_pcm, SNDRV_PCM_STREAM_PLAYBACK,
1353                                &snd_rme32_playback_spdif_ops);
1354                snd_pcm_set_ops(rme32->spdif_pcm, SNDRV_PCM_STREAM_CAPTURE,
1355                                &snd_rme32_capture_spdif_ops);
1356                rme32->spdif_pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
1357        }
1358
1359        /* set up ALSA pcm device for ADAT */
1360        if ((pci->device == PCI_DEVICE_ID_RME_DIGI32) ||
1361            (pci->device == PCI_DEVICE_ID_RME_DIGI32_PRO)) {
1362                /* ADAT is not available on DIGI32 and DIGI32 Pro */
1363                rme32->adat_pcm = NULL;
1364        }
1365        else {
1366                err = snd_pcm_new(rme32->card, "Digi32 ADAT", 1,
1367                                  1, 1, &rme32->adat_pcm);
1368                if (err < 0)
1369                        return err;
1370                rme32->adat_pcm->private_data = rme32;
1371                rme32->adat_pcm->private_free = snd_rme32_free_adat_pcm;
1372                strcpy(rme32->adat_pcm->name, "Digi32 ADAT");
1373                if (rme32->fullduplex_mode) {
1374                        snd_pcm_set_ops(rme32->adat_pcm, SNDRV_PCM_STREAM_PLAYBACK, 
1375                                        &snd_rme32_playback_adat_fd_ops);
1376                        snd_pcm_set_ops(rme32->adat_pcm, SNDRV_PCM_STREAM_CAPTURE, 
1377                                        &snd_rme32_capture_adat_fd_ops);
1378                        snd_pcm_set_managed_buffer_all(rme32->adat_pcm, SNDRV_DMA_TYPE_CONTINUOUS,
1379                                                       NULL,
1380                                                       0, RME32_MID_BUFFER_SIZE);
1381                        rme32->adat_pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
1382                } else {
1383                        snd_pcm_set_ops(rme32->adat_pcm, SNDRV_PCM_STREAM_PLAYBACK, 
1384                                        &snd_rme32_playback_adat_ops);
1385                        snd_pcm_set_ops(rme32->adat_pcm, SNDRV_PCM_STREAM_CAPTURE, 
1386                                        &snd_rme32_capture_adat_ops);
1387                        rme32->adat_pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
1388                }
1389        }
1390
1391
1392        rme32->playback_periodsize = 0;
1393        rme32->capture_periodsize = 0;
1394
1395        /* make sure playback/capture is stopped, if by some reason active */
1396        snd_rme32_pcm_stop(rme32, 0);
1397
1398        /* reset DAC */
1399        snd_rme32_reset_dac(rme32);
1400
1401        /* reset buffer pointer */
1402        writel(0, rme32->iobase + RME32_IO_RESET_POS);
1403
1404        /* set default values in registers */
1405        rme32->wcreg = RME32_WCR_SEL |   /* normal playback */
1406                RME32_WCR_INP_0 | /* input select */
1407                RME32_WCR_MUTE;  /* muting on */
1408        writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
1409
1410
1411        /* init switch interface */
1412        err = snd_rme32_create_switches(rme32->card, rme32);
1413        if (err < 0)
1414                return err;
1415
1416        /* init proc interface */
1417        snd_rme32_proc_init(rme32);
1418
1419        rme32->capture_substream = NULL;
1420        rme32->playback_substream = NULL;
1421
1422        return 0;
1423}
1424
1425/*
1426 * proc interface
1427 */
1428
1429static void
1430snd_rme32_proc_read(struct snd_info_entry * entry, struct snd_info_buffer *buffer)
1431{
1432        int n;
1433        struct rme32 *rme32 = (struct rme32 *) entry->private_data;
1434
1435        rme32->rcreg = readl(rme32->iobase + RME32_IO_CONTROL_REGISTER);
1436
1437        snd_iprintf(buffer, rme32->card->longname);
1438        snd_iprintf(buffer, " (index #%d)\n", rme32->card->number + 1);
1439
1440        snd_iprintf(buffer, "\nGeneral settings\n");
1441        if (rme32->fullduplex_mode)
1442                snd_iprintf(buffer, "  Full-duplex mode\n");
1443        else
1444                snd_iprintf(buffer, "  Half-duplex mode\n");
1445        if (RME32_PRO_WITH_8414(rme32)) {
1446                snd_iprintf(buffer, "  receiver: CS8414\n");
1447        } else {
1448                snd_iprintf(buffer, "  receiver: CS8412\n");
1449        }
1450        if (rme32->wcreg & RME32_WCR_MODE24) {
1451                snd_iprintf(buffer, "  format: 24 bit");
1452        } else {
1453                snd_iprintf(buffer, "  format: 16 bit");
1454        }
1455        if (rme32->wcreg & RME32_WCR_MONO) {
1456                snd_iprintf(buffer, ", Mono\n");
1457        } else {
1458                snd_iprintf(buffer, ", Stereo\n");
1459        }
1460
1461        snd_iprintf(buffer, "\nInput settings\n");
1462        switch (snd_rme32_getinputtype(rme32)) {
1463        case RME32_INPUT_OPTICAL:
1464                snd_iprintf(buffer, "  input: optical");
1465                break;
1466        case RME32_INPUT_COAXIAL:
1467                snd_iprintf(buffer, "  input: coaxial");
1468                break;
1469        case RME32_INPUT_INTERNAL:
1470                snd_iprintf(buffer, "  input: internal");
1471                break;
1472        case RME32_INPUT_XLR:
1473                snd_iprintf(buffer, "  input: XLR");
1474                break;
1475        }
1476        if (snd_rme32_capture_getrate(rme32, &n) < 0) {
1477                snd_iprintf(buffer, "\n  sample rate: no valid signal\n");
1478        } else {
1479                if (n) {
1480                        snd_iprintf(buffer, " (8 channels)\n");
1481                } else {
1482                        snd_iprintf(buffer, " (2 channels)\n");
1483                }
1484                snd_iprintf(buffer, "  sample rate: %d Hz\n",
1485                            snd_rme32_capture_getrate(rme32, &n));
1486        }
1487
1488        snd_iprintf(buffer, "\nOutput settings\n");
1489        if (rme32->wcreg & RME32_WCR_SEL) {
1490                snd_iprintf(buffer, "  output signal: normal playback");
1491        } else {
1492                snd_iprintf(buffer, "  output signal: same as input");
1493        }
1494        if (rme32->wcreg & RME32_WCR_MUTE) {
1495                snd_iprintf(buffer, " (muted)\n");
1496        } else {
1497                snd_iprintf(buffer, "\n");
1498        }
1499
1500        /* master output frequency */
1501        if (!
1502            ((!(rme32->wcreg & RME32_WCR_FREQ_0))
1503             && (!(rme32->wcreg & RME32_WCR_FREQ_1)))) {
1504                snd_iprintf(buffer, "  sample rate: %d Hz\n",
1505                            snd_rme32_playback_getrate(rme32));
1506        }
1507        if (rme32->rcreg & RME32_RCR_KMODE) {
1508                snd_iprintf(buffer, "  sample clock source: AutoSync\n");
1509        } else {
1510                snd_iprintf(buffer, "  sample clock source: Internal\n");
1511        }
1512        if (rme32->wcreg & RME32_WCR_PRO) {
1513                snd_iprintf(buffer, "  format: AES/EBU (professional)\n");
1514        } else {
1515                snd_iprintf(buffer, "  format: IEC958 (consumer)\n");
1516        }
1517        if (rme32->wcreg & RME32_WCR_EMP) {
1518                snd_iprintf(buffer, "  emphasis: on\n");
1519        } else {
1520                snd_iprintf(buffer, "  emphasis: off\n");
1521        }
1522}
1523
1524static void snd_rme32_proc_init(struct rme32 *rme32)
1525{
1526        snd_card_ro_proc_new(rme32->card, "rme32", rme32, snd_rme32_proc_read);
1527}
1528
1529/*
1530 * control interface
1531 */
1532
1533#define snd_rme32_info_loopback_control         snd_ctl_boolean_mono_info
1534
1535static int
1536snd_rme32_get_loopback_control(struct snd_kcontrol *kcontrol,
1537                               struct snd_ctl_elem_value *ucontrol)
1538{
1539        struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1540
1541        spin_lock_irq(&rme32->lock);
1542        ucontrol->value.integer.value[0] =
1543            rme32->wcreg & RME32_WCR_SEL ? 0 : 1;
1544        spin_unlock_irq(&rme32->lock);
1545        return 0;
1546}
1547static int
1548snd_rme32_put_loopback_control(struct snd_kcontrol *kcontrol,
1549                               struct snd_ctl_elem_value *ucontrol)
1550{
1551        struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1552        unsigned int val;
1553        int change;
1554
1555        val = ucontrol->value.integer.value[0] ? 0 : RME32_WCR_SEL;
1556        spin_lock_irq(&rme32->lock);
1557        val = (rme32->wcreg & ~RME32_WCR_SEL) | val;
1558        change = val != rme32->wcreg;
1559        if (ucontrol->value.integer.value[0])
1560                val &= ~RME32_WCR_MUTE;
1561        else
1562                val |= RME32_WCR_MUTE;
1563        rme32->wcreg = val;
1564        writel(val, rme32->iobase + RME32_IO_CONTROL_REGISTER);
1565        spin_unlock_irq(&rme32->lock);
1566        return change;
1567}
1568
1569static int
1570snd_rme32_info_inputtype_control(struct snd_kcontrol *kcontrol,
1571                                 struct snd_ctl_elem_info *uinfo)
1572{
1573        struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1574        static const char * const texts[4] = {
1575                "Optical", "Coaxial", "Internal", "XLR"
1576        };
1577        int num_items;
1578
1579        switch (rme32->pci->device) {
1580        case PCI_DEVICE_ID_RME_DIGI32:
1581        case PCI_DEVICE_ID_RME_DIGI32_8:
1582                num_items = 3;
1583                break;
1584        case PCI_DEVICE_ID_RME_DIGI32_PRO:
1585                num_items = 4;
1586                break;
1587        default:
1588                snd_BUG();
1589                return -EINVAL;
1590        }
1591        return snd_ctl_enum_info(uinfo, 1, num_items, texts);
1592}
1593static int
1594snd_rme32_get_inputtype_control(struct snd_kcontrol *kcontrol,
1595                                struct snd_ctl_elem_value *ucontrol)
1596{
1597        struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1598        unsigned int items = 3;
1599
1600        spin_lock_irq(&rme32->lock);
1601        ucontrol->value.enumerated.item[0] = snd_rme32_getinputtype(rme32);
1602
1603        switch (rme32->pci->device) {
1604        case PCI_DEVICE_ID_RME_DIGI32:
1605        case PCI_DEVICE_ID_RME_DIGI32_8:
1606                items = 3;
1607                break;
1608        case PCI_DEVICE_ID_RME_DIGI32_PRO:
1609                items = 4;
1610                break;
1611        default:
1612                snd_BUG();
1613                break;
1614        }
1615        if (ucontrol->value.enumerated.item[0] >= items) {
1616                ucontrol->value.enumerated.item[0] = items - 1;
1617        }
1618
1619        spin_unlock_irq(&rme32->lock);
1620        return 0;
1621}
1622static int
1623snd_rme32_put_inputtype_control(struct snd_kcontrol *kcontrol,
1624                                struct snd_ctl_elem_value *ucontrol)
1625{
1626        struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1627        unsigned int val;
1628        int change, items = 3;
1629
1630        switch (rme32->pci->device) {
1631        case PCI_DEVICE_ID_RME_DIGI32:
1632        case PCI_DEVICE_ID_RME_DIGI32_8:
1633                items = 3;
1634                break;
1635        case PCI_DEVICE_ID_RME_DIGI32_PRO:
1636                items = 4;
1637                break;
1638        default:
1639                snd_BUG();
1640                break;
1641        }
1642        val = ucontrol->value.enumerated.item[0] % items;
1643
1644        spin_lock_irq(&rme32->lock);
1645        change = val != (unsigned int)snd_rme32_getinputtype(rme32);
1646        snd_rme32_setinputtype(rme32, val);
1647        spin_unlock_irq(&rme32->lock);
1648        return change;
1649}
1650
1651static int
1652snd_rme32_info_clockmode_control(struct snd_kcontrol *kcontrol,
1653                                 struct snd_ctl_elem_info *uinfo)
1654{
1655        static const char * const texts[4] = { "AutoSync",
1656                                  "Internal 32.0kHz", 
1657                                  "Internal 44.1kHz", 
1658                                  "Internal 48.0kHz" };
1659
1660        return snd_ctl_enum_info(uinfo, 1, 4, texts);
1661}
1662static int
1663snd_rme32_get_clockmode_control(struct snd_kcontrol *kcontrol,
1664                                struct snd_ctl_elem_value *ucontrol)
1665{
1666        struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1667
1668        spin_lock_irq(&rme32->lock);
1669        ucontrol->value.enumerated.item[0] = snd_rme32_getclockmode(rme32);
1670        spin_unlock_irq(&rme32->lock);
1671        return 0;
1672}
1673static int
1674snd_rme32_put_clockmode_control(struct snd_kcontrol *kcontrol,
1675                                struct snd_ctl_elem_value *ucontrol)
1676{
1677        struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1678        unsigned int val;
1679        int change;
1680
1681        val = ucontrol->value.enumerated.item[0] % 3;
1682        spin_lock_irq(&rme32->lock);
1683        change = val != (unsigned int)snd_rme32_getclockmode(rme32);
1684        snd_rme32_setclockmode(rme32, val);
1685        spin_unlock_irq(&rme32->lock);
1686        return change;
1687}
1688
1689static u32 snd_rme32_convert_from_aes(struct snd_aes_iec958 * aes)
1690{
1691        u32 val = 0;
1692        val |= (aes->status[0] & IEC958_AES0_PROFESSIONAL) ? RME32_WCR_PRO : 0;
1693        if (val & RME32_WCR_PRO)
1694                val |= (aes->status[0] & IEC958_AES0_PRO_EMPHASIS_5015) ? RME32_WCR_EMP : 0;
1695        else
1696                val |= (aes->status[0] & IEC958_AES0_CON_EMPHASIS_5015) ? RME32_WCR_EMP : 0;
1697        return val;
1698}
1699
1700static void snd_rme32_convert_to_aes(struct snd_aes_iec958 * aes, u32 val)
1701{
1702        aes->status[0] = ((val & RME32_WCR_PRO) ? IEC958_AES0_PROFESSIONAL : 0);
1703        if (val & RME32_WCR_PRO)
1704                aes->status[0] |= (val & RME32_WCR_EMP) ? IEC958_AES0_PRO_EMPHASIS_5015 : 0;
1705        else
1706                aes->status[0] |= (val & RME32_WCR_EMP) ? IEC958_AES0_CON_EMPHASIS_5015 : 0;
1707}
1708
1709static int snd_rme32_control_spdif_info(struct snd_kcontrol *kcontrol,
1710                                        struct snd_ctl_elem_info *uinfo)
1711{
1712        uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1713        uinfo->count = 1;
1714        return 0;
1715}
1716
1717static int snd_rme32_control_spdif_get(struct snd_kcontrol *kcontrol,
1718                                       struct snd_ctl_elem_value *ucontrol)
1719{
1720        struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1721
1722        snd_rme32_convert_to_aes(&ucontrol->value.iec958,
1723                                 rme32->wcreg_spdif);
1724        return 0;
1725}
1726
1727static int snd_rme32_control_spdif_put(struct snd_kcontrol *kcontrol,
1728                                       struct snd_ctl_elem_value *ucontrol)
1729{
1730        struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1731        int change;
1732        u32 val;
1733
1734        val = snd_rme32_convert_from_aes(&ucontrol->value.iec958);
1735        spin_lock_irq(&rme32->lock);
1736        change = val != rme32->wcreg_spdif;
1737        rme32->wcreg_spdif = val;
1738        spin_unlock_irq(&rme32->lock);
1739        return change;
1740}
1741
1742static int snd_rme32_control_spdif_stream_info(struct snd_kcontrol *kcontrol,
1743                                               struct snd_ctl_elem_info *uinfo)
1744{
1745        uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1746        uinfo->count = 1;
1747        return 0;
1748}
1749
1750static int snd_rme32_control_spdif_stream_get(struct snd_kcontrol *kcontrol,
1751                                              struct snd_ctl_elem_value *
1752                                              ucontrol)
1753{
1754        struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1755
1756        snd_rme32_convert_to_aes(&ucontrol->value.iec958,
1757                                 rme32->wcreg_spdif_stream);
1758        return 0;
1759}
1760
1761static int snd_rme32_control_spdif_stream_put(struct snd_kcontrol *kcontrol,
1762                                              struct snd_ctl_elem_value *
1763                                              ucontrol)
1764{
1765        struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
1766        int change;
1767        u32 val;
1768
1769        val = snd_rme32_convert_from_aes(&ucontrol->value.iec958);
1770        spin_lock_irq(&rme32->lock);
1771        change = val != rme32->wcreg_spdif_stream;
1772        rme32->wcreg_spdif_stream = val;
1773        rme32->wcreg &= ~(RME32_WCR_PRO | RME32_WCR_EMP);
1774        rme32->wcreg |= val;
1775        writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
1776        spin_unlock_irq(&rme32->lock);
1777        return change;
1778}
1779
1780static int snd_rme32_control_spdif_mask_info(struct snd_kcontrol *kcontrol,
1781                                             struct snd_ctl_elem_info *uinfo)
1782{
1783        uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1784        uinfo->count = 1;
1785        return 0;
1786}
1787
1788static int snd_rme32_control_spdif_mask_get(struct snd_kcontrol *kcontrol,
1789                                            struct snd_ctl_elem_value *
1790                                            ucontrol)
1791{
1792        ucontrol->value.iec958.status[0] = kcontrol->private_value;
1793        return 0;
1794}
1795
1796static const struct snd_kcontrol_new snd_rme32_controls[] = {
1797        {
1798                .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1799                .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
1800                .info = snd_rme32_control_spdif_info,
1801                .get =  snd_rme32_control_spdif_get,
1802                .put =  snd_rme32_control_spdif_put
1803        },
1804        {
1805                .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE,
1806                .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1807                .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, PCM_STREAM),
1808                .info = snd_rme32_control_spdif_stream_info,
1809                .get =  snd_rme32_control_spdif_stream_get,
1810                .put =  snd_rme32_control_spdif_stream_put
1811        },
1812        {
1813                .access = SNDRV_CTL_ELEM_ACCESS_READ,
1814                .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1815                .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, CON_MASK),
1816                .info = snd_rme32_control_spdif_mask_info,
1817                .get =  snd_rme32_control_spdif_mask_get,
1818                .private_value = IEC958_AES0_PROFESSIONAL | IEC958_AES0_CON_EMPHASIS
1819        },
1820        {
1821                .access = SNDRV_CTL_ELEM_ACCESS_READ,
1822                .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1823                .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, PRO_MASK),
1824                .info = snd_rme32_control_spdif_mask_info,
1825                .get =  snd_rme32_control_spdif_mask_get,
1826                .private_value = IEC958_AES0_PROFESSIONAL | IEC958_AES0_PRO_EMPHASIS
1827        },
1828        {
1829                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1830                .name = "Input Connector",
1831                .info = snd_rme32_info_inputtype_control,
1832                .get =  snd_rme32_get_inputtype_control,
1833                .put =  snd_rme32_put_inputtype_control
1834        },
1835        {
1836                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1837                .name = "Loopback Input",
1838                .info = snd_rme32_info_loopback_control,
1839                .get =  snd_rme32_get_loopback_control,
1840                .put =  snd_rme32_put_loopback_control
1841        },
1842        {
1843                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1844                .name = "Sample Clock Source",
1845                .info = snd_rme32_info_clockmode_control,
1846                .get =  snd_rme32_get_clockmode_control,
1847                .put =  snd_rme32_put_clockmode_control
1848        }
1849};
1850
1851static int snd_rme32_create_switches(struct snd_card *card, struct rme32 * rme32)
1852{
1853        int idx, err;
1854        struct snd_kcontrol *kctl;
1855
1856        for (idx = 0; idx < (int)ARRAY_SIZE(snd_rme32_controls); idx++) {
1857                kctl = snd_ctl_new1(&snd_rme32_controls[idx], rme32);
1858                err = snd_ctl_add(card, kctl);
1859                if (err < 0)
1860                        return err;
1861                if (idx == 1)   /* IEC958 (S/PDIF) Stream */
1862                        rme32->spdif_ctl = kctl;
1863        }
1864
1865        return 0;
1866}
1867
1868/*
1869 * Card initialisation
1870 */
1871
1872static void snd_rme32_card_free(struct snd_card *card)
1873{
1874        snd_rme32_free(card->private_data);
1875}
1876
1877static int
1878snd_rme32_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
1879{
1880        static int dev;
1881        struct rme32 *rme32;
1882        struct snd_card *card;
1883        int err;
1884
1885        if (dev >= SNDRV_CARDS) {
1886                return -ENODEV;
1887        }
1888        if (!enable[dev]) {
1889                dev++;
1890                return -ENOENT;
1891        }
1892
1893        err = snd_devm_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
1894                                sizeof(*rme32), &card);
1895        if (err < 0)
1896                return err;
1897        card->private_free = snd_rme32_card_free;
1898        rme32 = (struct rme32 *) card->private_data;
1899        rme32->card = card;
1900        rme32->pci = pci;
1901        if (fullduplex[dev])
1902                rme32->fullduplex_mode = 1;
1903        err = snd_rme32_create(rme32);
1904        if (err < 0)
1905                return err;
1906
1907        strcpy(card->driver, "Digi32");
1908        switch (rme32->pci->device) {
1909        case PCI_DEVICE_ID_RME_DIGI32:
1910                strcpy(card->shortname, "RME Digi32");
1911                break;
1912        case PCI_DEVICE_ID_RME_DIGI32_8:
1913                strcpy(card->shortname, "RME Digi32/8");
1914                break;
1915        case PCI_DEVICE_ID_RME_DIGI32_PRO:
1916                strcpy(card->shortname, "RME Digi32 PRO");
1917                break;
1918        }
1919        sprintf(card->longname, "%s (Rev. %d) at 0x%lx, irq %d",
1920                card->shortname, rme32->rev, rme32->port, rme32->irq);
1921
1922        err = snd_card_register(card);
1923        if (err < 0)
1924                return err;
1925        pci_set_drvdata(pci, card);
1926        dev++;
1927        return 0;
1928}
1929
1930static struct pci_driver rme32_driver = {
1931        .name =         KBUILD_MODNAME,
1932        .id_table =     snd_rme32_ids,
1933        .probe =        snd_rme32_probe,
1934};
1935
1936module_pci_driver(rme32_driver);
1937