git.oblomov.eu Git - linux-2.6/blob - sound/pci/rme96.c

   1 /*
   2  *   ALSA driver for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST audio
   3  *   interfaces
   4  *
   5  *      Copyright (c) 2000, 2001 Anders Torger <torger@ludd.luth.se>
   6  *
   7  *      Thanks to Henk Hesselink <henk@anda.nl> for the analog volume control
   8  *      code.
   9  *
  10  *   This program is free software; you can redistribute it and/or modify
  11  *   it under the terms of the GNU General Public License as published by
  12  *   the Free Software Foundation; either version 2 of the License, or
  13  *   (at your option) any later version.
  14  *
  15  *   This program is distributed in the hope that it will be useful,
  16  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  *   GNU General Public License for more details.
  19  *
  20  *   You should have received a copy of the GNU General Public License
  21  *   along with this program; if not, write to the Free Software
  22  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  23  *
  24  */
  25
  26 #include <sound/driver.h>
  27 #include <linux/delay.h>
  28 #include <linux/init.h>
  29 #include <linux/interrupt.h>
  30 #include <linux/pci.h>
  31 #include <linux/slab.h>
  32 #include <linux/moduleparam.h>
  33
  34 #include <sound/core.h>
  35 #include <sound/info.h>
  36 #include <sound/control.h>
  37 #include <sound/pcm.h>
  38 #include <sound/pcm_params.h>
  39 #include <sound/asoundef.h>
  40 #include <sound/initval.h>
  41
  42 #include <asm/io.h>
  43
  44 /* note, two last pcis should be equal, it is not a bug */
  45
  46 MODULE_AUTHOR("Anders Torger <torger@ludd.luth.se>");
  47 MODULE_DESCRIPTION("RME Digi96, Digi96/8, Digi96/8 PRO, Digi96/8 PST, "
  48                    "Digi96/8 PAD");
  49 MODULE_LICENSE("GPL");
  50 MODULE_SUPPORTED_DEVICE("{{RME,Digi96},"
  51                 "{RME,Digi96/8},"
  52                 "{RME,Digi96/8 PRO},"
  53                 "{RME,Digi96/8 PST},"
  54                 "{RME,Digi96/8 PAD}}");
  55
  56 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  57 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  58 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;      /* Enable this card */
  59
  60 module_param_array(index, int, NULL, 0444);
  61 MODULE_PARM_DESC(index, "Index value for RME Digi96 soundcard.");
  62 module_param_array(id, charp, NULL, 0444);
  63 MODULE_PARM_DESC(id, "ID string for RME Digi96 soundcard.");
  64 module_param_array(enable, bool, NULL, 0444);
  65 MODULE_PARM_DESC(enable, "Enable RME Digi96 soundcard.");
  66
  67 /*
  68  * Defines for RME Digi96 series, from internal RME reference documents
  69  * dated 12.01.00
  70  */
  71
  72 #define RME96_SPDIF_NCHANNELS 2
  73
  74 /* Playback and capture buffer size */
  75 #define RME96_BUFFER_SIZE 0x10000
  76
  77 /* IO area size */
  78 #define RME96_IO_SIZE 0x60000
  79
  80 /* IO area offsets */
  81 #define RME96_IO_PLAY_BUFFER      0x0
  82 #define RME96_IO_REC_BUFFER       0x10000
  83 #define RME96_IO_CONTROL_REGISTER 0x20000
  84 #define RME96_IO_ADDITIONAL_REG   0x20004
  85 #define RME96_IO_CONFIRM_PLAY_IRQ 0x20008
  86 #define RME96_IO_CONFIRM_REC_IRQ  0x2000C
  87 #define RME96_IO_SET_PLAY_POS     0x40000
  88 #define RME96_IO_RESET_PLAY_POS   0x4FFFC
  89 #define RME96_IO_SET_REC_POS      0x50000
  90 #define RME96_IO_RESET_REC_POS    0x5FFFC
  91 #define RME96_IO_GET_PLAY_POS     0x20000
  92 #define RME96_IO_GET_REC_POS      0x30000
  93
  94 /* Write control register bits */
  95 #define RME96_WCR_START     (1 << 0)
  96 #define RME96_WCR_START_2   (1 << 1)
  97 #define RME96_WCR_GAIN_0    (1 << 2)
  98 #define RME96_WCR_GAIN_1    (1 << 3)
  99 #define RME96_WCR_MODE24    (1 << 4)
 100 #define RME96_WCR_MODE24_2  (1 << 5)
 101 #define RME96_WCR_BM        (1 << 6)
 102 #define RME96_WCR_BM_2      (1 << 7)
 103 #define RME96_WCR_ADAT      (1 << 8)
 104 #define RME96_WCR_FREQ_0    (1 << 9)
 105 #define RME96_WCR_FREQ_1    (1 << 10)
 106 #define RME96_WCR_DS        (1 << 11)
 107 #define RME96_WCR_PRO       (1 << 12)
 108 #define RME96_WCR_EMP       (1 << 13)
 109 #define RME96_WCR_SEL       (1 << 14)
 110 #define RME96_WCR_MASTER    (1 << 15)
 111 #define RME96_WCR_PD        (1 << 16)
 112 #define RME96_WCR_INP_0     (1 << 17)
 113 #define RME96_WCR_INP_1     (1 << 18)
 114 #define RME96_WCR_THRU_0    (1 << 19)
 115 #define RME96_WCR_THRU_1    (1 << 20)
 116 #define RME96_WCR_THRU_2    (1 << 21)
 117 #define RME96_WCR_THRU_3    (1 << 22)
 118 #define RME96_WCR_THRU_4    (1 << 23)
 119 #define RME96_WCR_THRU_5    (1 << 24)
 120 #define RME96_WCR_THRU_6    (1 << 25)
 121 #define RME96_WCR_THRU_7    (1 << 26)
 122 #define RME96_WCR_DOLBY     (1 << 27)
 123 #define RME96_WCR_MONITOR_0 (1 << 28)
 124 #define RME96_WCR_MONITOR_1 (1 << 29)
 125 #define RME96_WCR_ISEL      (1 << 30)
 126 #define RME96_WCR_IDIS      (1 << 31)
 127
 128 #define RME96_WCR_BITPOS_GAIN_0 2
 129 #define RME96_WCR_BITPOS_GAIN_1 3
 130 #define RME96_WCR_BITPOS_FREQ_0 9
 131 #define RME96_WCR_BITPOS_FREQ_1 10
 132 #define RME96_WCR_BITPOS_INP_0 17
 133 #define RME96_WCR_BITPOS_INP_1 18
 134 #define RME96_WCR_BITPOS_MONITOR_0 28
 135 #define RME96_WCR_BITPOS_MONITOR_1 29
 136
 137 /* Read control register bits */
 138 #define RME96_RCR_AUDIO_ADDR_MASK 0xFFFF
 139 #define RME96_RCR_IRQ_2     (1 << 16)
 140 #define RME96_RCR_T_OUT     (1 << 17)
 141 #define RME96_RCR_DEV_ID_0  (1 << 21)
 142 #define RME96_RCR_DEV_ID_1  (1 << 22)
 143 #define RME96_RCR_LOCK      (1 << 23)
 144 #define RME96_RCR_VERF      (1 << 26)
 145 #define RME96_RCR_F0        (1 << 27)
 146 #define RME96_RCR_F1        (1 << 28)
 147 #define RME96_RCR_F2        (1 << 29)
 148 #define RME96_RCR_AUTOSYNC  (1 << 30)
 149 #define RME96_RCR_IRQ       (1 << 31)
 150
 151 #define RME96_RCR_BITPOS_F0 27
 152 #define RME96_RCR_BITPOS_F1 28
 153 #define RME96_RCR_BITPOS_F2 29
 154
 155 /* Additonal register bits */
 156 #define RME96_AR_WSEL       (1 << 0)
 157 #define RME96_AR_ANALOG     (1 << 1)
 158 #define RME96_AR_FREQPAD_0  (1 << 2)
 159 #define RME96_AR_FREQPAD_1  (1 << 3)
 160 #define RME96_AR_FREQPAD_2  (1 << 4)
 161 #define RME96_AR_PD2        (1 << 5)
 162 #define RME96_AR_DAC_EN     (1 << 6)
 163 #define RME96_AR_CLATCH     (1 << 7)
 164 #define RME96_AR_CCLK       (1 << 8)
 165 #define RME96_AR_CDATA      (1 << 9)
 166
 167 #define RME96_AR_BITPOS_F0 2
 168 #define RME96_AR_BITPOS_F1 3
 169 #define RME96_AR_BITPOS_F2 4
 170
 171 /* Monitor tracks */
 172 #define RME96_MONITOR_TRACKS_1_2 0
 173 #define RME96_MONITOR_TRACKS_3_4 1
 174 #define RME96_MONITOR_TRACKS_5_6 2
 175 #define RME96_MONITOR_TRACKS_7_8 3
 176
 177 /* Attenuation */
 178 #define RME96_ATTENUATION_0 0
 179 #define RME96_ATTENUATION_6 1
 180 #define RME96_ATTENUATION_12 2
 181 #define RME96_ATTENUATION_18 3
 182
 183 /* Input types */
 184 #define RME96_INPUT_OPTICAL 0
 185 #define RME96_INPUT_COAXIAL 1
 186 #define RME96_INPUT_INTERNAL 2
 187 #define RME96_INPUT_XLR 3
 188 #define RME96_INPUT_ANALOG 4
 189
 190 /* Clock modes */
 191 #define RME96_CLOCKMODE_SLAVE 0
 192 #define RME96_CLOCKMODE_MASTER 1
 193 #define RME96_CLOCKMODE_WORDCLOCK 2
 194
 195 /* Block sizes in bytes */
 196 #define RME96_SMALL_BLOCK_SIZE 2048
 197 #define RME96_LARGE_BLOCK_SIZE 8192
 198
 199 /* Volume control */
 200 #define RME96_AD1852_VOL_BITS 14
 201 #define RME96_AD1855_VOL_BITS 10
 202
 203
 204 struct rme96 {
 205         spinlock_t    lock;
 206         int irq;
 207         unsigned long port;
 208         void __iomem *iobase;
 209
 210         u32 wcreg;    /* cached write control register value */
 211         u32 wcreg_spdif;                /* S/PDIF setup */
 212         u32 wcreg_spdif_stream;         /* S/PDIF setup (temporary) */
 213         u32 rcreg;    /* cached read control register value */
 214         u32 areg;     /* cached additional register value */
 215         u16 vol[2]; /* cached volume of analog output */
 216
 217         u8 rev; /* card revision number */
 218
 219         struct snd_pcm_substream *playback_substream;
 220         struct snd_pcm_substream *capture_substream;
 221
 222         int playback_frlog; /* log2 of framesize */
 223         int capture_frlog;
 224
 225         size_t playback_periodsize; /* in bytes, zero if not used */
 226         size_t capture_periodsize; /* in bytes, zero if not used */
 227
 228         struct snd_card *card;
 229         struct snd_pcm *spdif_pcm;
 230         struct snd_pcm *adat_pcm;
 231         struct pci_dev     *pci;
 232         struct snd_kcontrol   *spdif_ctl;
 233 };
 234
 235 static struct pci_device_id snd_rme96_ids[] = {
 236         { PCI_VENDOR_ID_XILINX, PCI_DEVICE_ID_RME_DIGI96,
 237           PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },
 238         { PCI_VENDOR_ID_XILINX, PCI_DEVICE_ID_RME_DIGI96_8,
 239           PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },
 240         { PCI_VENDOR_ID_XILINX, PCI_DEVICE_ID_RME_DIGI96_8_PRO,
 241           PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },
 242         { PCI_VENDOR_ID_XILINX, PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST,
 243           PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },
 244         { 0, }
 245 };
 246
 247 MODULE_DEVICE_TABLE(pci, snd_rme96_ids);
 248
 249 #define RME96_ISPLAYING(rme96) ((rme96)->wcreg & RME96_WCR_START)
 250 #define RME96_ISRECORDING(rme96) ((rme96)->wcreg & RME96_WCR_START_2)
 251 #define RME96_HAS_ANALOG_IN(rme96) ((rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST)
 252 #define RME96_HAS_ANALOG_OUT(rme96) ((rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PRO || \
 253                                      (rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST)
 254 #define RME96_DAC_IS_1852(rme96) (RME96_HAS_ANALOG_OUT(rme96) && (rme96)->rev >= 4)
 255 #define RME96_DAC_IS_1855(rme96) (((rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST && (rme96)->rev < 4) || \
 256                                   ((rme96)->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PRO && (rme96)->rev == 2))
 257 #define RME96_185X_MAX_OUT(rme96) ((1 << (RME96_DAC_IS_1852(rme96) ? RME96_AD1852_VOL_BITS : RME96_AD1855_VOL_BITS)) - 1)
 258
 259 static int
 260 snd_rme96_playback_prepare(struct snd_pcm_substream *substream);
 261
 262 static int
 263 snd_rme96_capture_prepare(struct snd_pcm_substream *substream);
 264
 265 static int
 266 snd_rme96_playback_trigger(struct snd_pcm_substream *substream,
 267                            int cmd);
 268
 269 static int
 270 snd_rme96_capture_trigger(struct snd_pcm_substream *substream,
 271                           int cmd);
 272
 273 static snd_pcm_uframes_t
 274 snd_rme96_playback_pointer(struct snd_pcm_substream *substream);
 275
 276 static snd_pcm_uframes_t
 277 snd_rme96_capture_pointer(struct snd_pcm_substream *substream);
 278
 279 static void __devinit
 280 snd_rme96_proc_init(struct rme96 *rme96);
 281
 282 static int
 283 snd_rme96_create_switches(struct snd_card *card,
 284                           struct rme96 *rme96);
 285
 286 static int
 287 snd_rme96_getinputtype(struct rme96 *rme96);
 288
 289 static inline unsigned int
 290 snd_rme96_playback_ptr(struct rme96 *rme96)
 291 {
 292         return (readl(rme96->iobase + RME96_IO_GET_PLAY_POS)
 293                 & RME96_RCR_AUDIO_ADDR_MASK) >> rme96->playback_frlog;
 294 }
 295
 296 static inline unsigned int
 297 snd_rme96_capture_ptr(struct rme96 *rme96)
 298 {
 299         return (readl(rme96->iobase + RME96_IO_GET_REC_POS)
 300                 & RME96_RCR_AUDIO_ADDR_MASK) >> rme96->capture_frlog;
 301 }
 302
 303 static int
 304 snd_rme96_ratecode(int rate)
 305 {
 306     switch (rate) {
 307     case 32000: return SNDRV_PCM_RATE_32000;
 308     case 44100: return SNDRV_PCM_RATE_44100;
 309     case 48000: return SNDRV_PCM_RATE_48000;
 310     case 64000: return SNDRV_PCM_RATE_64000;
 311     case 88200: return SNDRV_PCM_RATE_88200;
 312     case 96000: return SNDRV_PCM_RATE_96000;
 313     }
 314     return 0;
 315 }
 316
 317 static int
 318 snd_rme96_playback_silence(struct snd_pcm_substream *substream,
 319                            int channel, /* not used (interleaved data) */
 320                            snd_pcm_uframes_t pos,
 321                            snd_pcm_uframes_t count)
 322 {
 323         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
 324         count <<= rme96->playback_frlog;
 325         pos <<= rme96->playback_frlog;
 326         memset_io(rme96->iobase + RME96_IO_PLAY_BUFFER + pos,
 327                   0, count);
 328         return 0;
 329 }
 330
 331 static int
 332 snd_rme96_playback_copy(struct snd_pcm_substream *substream,
 333                         int channel, /* not used (interleaved data) */
 334                         snd_pcm_uframes_t pos,
 335                         void __user *src,
 336                         snd_pcm_uframes_t count)
 337 {
 338         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
 339         count <<= rme96->playback_frlog;
 340         pos <<= rme96->playback_frlog;
 341         copy_from_user_toio(rme96->iobase + RME96_IO_PLAY_BUFFER + pos, src,
 342                             count);
 343         return 0;
 344 }
 345
 346 static int
 347 snd_rme96_capture_copy(struct snd_pcm_substream *substream,
 348                        int channel, /* not used (interleaved data) */
 349                        snd_pcm_uframes_t pos,
 350                        void __user *dst,
 351                        snd_pcm_uframes_t count)
 352 {
 353         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
 354         count <<= rme96->capture_frlog;
 355         pos <<= rme96->capture_frlog;
 356         copy_to_user_fromio(dst, rme96->iobase + RME96_IO_REC_BUFFER + pos,
 357                             count);
 358         return 0;
 359 }
 360
 361 /*
 362  * Digital output capabilites (S/PDIF)
 363  */
 364 static struct snd_pcm_hardware snd_rme96_playback_spdif_info =
 365 {
 366         .info =              (SNDRV_PCM_INFO_MMAP_IOMEM |
 367                               SNDRV_PCM_INFO_MMAP_VALID |
 368                               SNDRV_PCM_INFO_INTERLEAVED |
 369                               SNDRV_PCM_INFO_PAUSE),
 370         .formats =           (SNDRV_PCM_FMTBIT_S16_LE |
 371                               SNDRV_PCM_FMTBIT_S32_LE),
 372         .rates =             (SNDRV_PCM_RATE_32000 |
 373                               SNDRV_PCM_RATE_44100 |
 374                               SNDRV_PCM_RATE_48000 |
 375                               SNDRV_PCM_RATE_64000 |
 376                               SNDRV_PCM_RATE_88200 |
 377                               SNDRV_PCM_RATE_96000),
 378         .rate_min =          32000,
 379         .rate_max =          96000,
 380         .channels_min =      2,
 381         .channels_max =      2,
 382         .buffer_bytes_max =  RME96_BUFFER_SIZE,
 383         .period_bytes_min =  RME96_SMALL_BLOCK_SIZE,
 384         .period_bytes_max =  RME96_LARGE_BLOCK_SIZE,
 385         .periods_min =       RME96_BUFFER_SIZE / RME96_LARGE_BLOCK_SIZE,
 386         .periods_max =       RME96_BUFFER_SIZE / RME96_SMALL_BLOCK_SIZE,
 387         .fifo_size =         0,
 388 };
 389
 390 /*
 391  * Digital input capabilites (S/PDIF)
 392  */
 393 static struct snd_pcm_hardware snd_rme96_capture_spdif_info =
 394 {
 395         .info =              (SNDRV_PCM_INFO_MMAP_IOMEM |
 396                               SNDRV_PCM_INFO_MMAP_VALID |
 397                               SNDRV_PCM_INFO_INTERLEAVED |
 398                               SNDRV_PCM_INFO_PAUSE),
 399         .formats =           (SNDRV_PCM_FMTBIT_S16_LE |
 400                               SNDRV_PCM_FMTBIT_S32_LE),
 401         .rates =             (SNDRV_PCM_RATE_32000 |
 402                               SNDRV_PCM_RATE_44100 |
 403                               SNDRV_PCM_RATE_48000 |
 404                               SNDRV_PCM_RATE_64000 |
 405                               SNDRV_PCM_RATE_88200 |
 406                               SNDRV_PCM_RATE_96000),
 407         .rate_min =          32000,
 408         .rate_max =          96000,
 409         .channels_min =      2,
 410         .channels_max =      2,
 411         .buffer_bytes_max =  RME96_BUFFER_SIZE,
 412         .period_bytes_min =  RME96_SMALL_BLOCK_SIZE,
 413         .period_bytes_max =  RME96_LARGE_BLOCK_SIZE,
 414         .periods_min =       RME96_BUFFER_SIZE / RME96_LARGE_BLOCK_SIZE,
 415         .periods_max =       RME96_BUFFER_SIZE / RME96_SMALL_BLOCK_SIZE,
 416         .fifo_size =         0,
 417 };
 418
 419 /*
 420  * Digital output capabilites (ADAT)
 421  */
 422 static struct snd_pcm_hardware snd_rme96_playback_adat_info =
 423 {
 424         .info =              (SNDRV_PCM_INFO_MMAP_IOMEM |
 425                               SNDRV_PCM_INFO_MMAP_VALID |
 426                               SNDRV_PCM_INFO_INTERLEAVED |
 427                               SNDRV_PCM_INFO_PAUSE),
 428         .formats =           (SNDRV_PCM_FMTBIT_S16_LE |
 429                               SNDRV_PCM_FMTBIT_S32_LE),
 430         .rates =             (SNDRV_PCM_RATE_44100 |
 431                               SNDRV_PCM_RATE_48000),
 432         .rate_min =          44100,
 433         .rate_max =          48000,
 434         .channels_min =      8,
 435         .channels_max =      8,
 436         .buffer_bytes_max =  RME96_BUFFER_SIZE,
 437         .period_bytes_min =  RME96_SMALL_BLOCK_SIZE,
 438         .period_bytes_max =  RME96_LARGE_BLOCK_SIZE,
 439         .periods_min =       RME96_BUFFER_SIZE / RME96_LARGE_BLOCK_SIZE,
 440         .periods_max =       RME96_BUFFER_SIZE / RME96_SMALL_BLOCK_SIZE,
 441         .fifo_size =         0,
 442 };
 443
 444 /*
 445  * Digital input capabilites (ADAT)
 446  */
 447 static struct snd_pcm_hardware snd_rme96_capture_adat_info =
 448 {
 449         .info =              (SNDRV_PCM_INFO_MMAP_IOMEM |
 450                               SNDRV_PCM_INFO_MMAP_VALID |
 451                               SNDRV_PCM_INFO_INTERLEAVED |
 452                               SNDRV_PCM_INFO_PAUSE),
 453         .formats =           (SNDRV_PCM_FMTBIT_S16_LE |
 454                               SNDRV_PCM_FMTBIT_S32_LE),
 455         .rates =             (SNDRV_PCM_RATE_44100 |
 456                               SNDRV_PCM_RATE_48000),
 457         .rate_min =          44100,
 458         .rate_max =          48000,
 459         .channels_min =      8,
 460         .channels_max =      8,
 461         .buffer_bytes_max =  RME96_BUFFER_SIZE,
 462         .period_bytes_min =  RME96_SMALL_BLOCK_SIZE,
 463         .period_bytes_max =  RME96_LARGE_BLOCK_SIZE,
 464         .periods_min =       RME96_BUFFER_SIZE / RME96_LARGE_BLOCK_SIZE,
 465         .periods_max =       RME96_BUFFER_SIZE / RME96_SMALL_BLOCK_SIZE,
 466         .fifo_size =         0,
 467 };
 468
 469 /*
 470  * The CDATA, CCLK and CLATCH bits can be used to write to the SPI interface
 471  * of the AD1852 or AD1852 D/A converter on the board.  CDATA must be set up
 472  * on the falling edge of CCLK and be stable on the rising edge.  The rising
 473  * edge of CLATCH after the last data bit clocks in the whole data word.
 474  * A fast processor could probably drive the SPI interface faster than the
 475  * DAC can handle (3MHz for the 1855, unknown for the 1852).  The udelay(1)
 476  * limits the data rate to 500KHz and only causes a delay of 33 microsecs.
 477  *
 478  * NOTE: increased delay from 1 to 10, since there where problems setting
 479  * the volume.
 480  */
 481 static void
 482 snd_rme96_write_SPI(struct rme96 *rme96, u16 val)
 483 {
 484         int i;
 485
 486         for (i = 0; i < 16; i++) {
 487                 if (val & 0x8000) {
 488                         rme96->areg |= RME96_AR_CDATA;
 489                 } else {
 490                         rme96->areg &= ~RME96_AR_CDATA;
 491                 }
 492                 rme96->areg &= ~(RME96_AR_CCLK | RME96_AR_CLATCH);
 493                 writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
 494                 udelay(10);
 495                 rme96->areg |= RME96_AR_CCLK;
 496                 writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
 497                 udelay(10);
 498                 val <<= 1;
 499         }
 500         rme96->areg &= ~(RME96_AR_CCLK | RME96_AR_CDATA);
 501         rme96->areg |= RME96_AR_CLATCH;
 502         writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
 503         udelay(10);
 504         rme96->areg &= ~RME96_AR_CLATCH;
 505         writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
 506 }
 507
 508 static void
 509 snd_rme96_apply_dac_volume(struct rme96 *rme96)
 510 {
 511         if (RME96_DAC_IS_1852(rme96)) {
 512                 snd_rme96_write_SPI(rme96, (rme96->vol[0] << 2) | 0x0);
 513                 snd_rme96_write_SPI(rme96, (rme96->vol[1] << 2) | 0x2);
 514         } else if (RME96_DAC_IS_1855(rme96)) {
 515                 snd_rme96_write_SPI(rme96, (rme96->vol[0] & 0x3FF) | 0x000);
 516                 snd_rme96_write_SPI(rme96, (rme96->vol[1] & 0x3FF) | 0x400);
 517         }
 518 }
 519
 520 static void
 521 snd_rme96_reset_dac(struct rme96 *rme96)
 522 {
 523         writel(rme96->wcreg | RME96_WCR_PD,
 524                rme96->iobase + RME96_IO_CONTROL_REGISTER);
 525         writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
 526 }
 527
 528 static int
 529 snd_rme96_getmontracks(struct rme96 *rme96)
 530 {
 531         return ((rme96->wcreg >> RME96_WCR_BITPOS_MONITOR_0) & 1) +
 532                 (((rme96->wcreg >> RME96_WCR_BITPOS_MONITOR_1) & 1) << 1);
 533 }
 534
 535 static int
 536 snd_rme96_setmontracks(struct rme96 *rme96,
 537                        int montracks)
 538 {
 539         if (montracks & 1) {
 540                 rme96->wcreg |= RME96_WCR_MONITOR_0;
 541         } else {
 542                 rme96->wcreg &= ~RME96_WCR_MONITOR_0;
 543         }
 544         if (montracks & 2) {
 545                 rme96->wcreg |= RME96_WCR_MONITOR_1;
 546         } else {
 547                 rme96->wcreg &= ~RME96_WCR_MONITOR_1;
 548         }
 549         writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
 550         return 0;
 551 }
 552
 553 static int
 554 snd_rme96_getattenuation(struct rme96 *rme96)
 555 {
 556         return ((rme96->wcreg >> RME96_WCR_BITPOS_GAIN_0) & 1) +
 557                 (((rme96->wcreg >> RME96_WCR_BITPOS_GAIN_1) & 1) << 1);
 558 }
 559
 560 static int
 561 snd_rme96_setattenuation(struct rme96 *rme96,
 562                          int attenuation)
 563 {
 564         switch (attenuation) {
 565         case 0:
 566                 rme96->wcreg = (rme96->wcreg & ~RME96_WCR_GAIN_0) &
 567                         ~RME96_WCR_GAIN_1;
 568                 break;
 569         case 1:
 570                 rme96->wcreg = (rme96->wcreg | RME96_WCR_GAIN_0) &
 571                         ~RME96_WCR_GAIN_1;
 572                 break;
 573         case 2:
 574                 rme96->wcreg = (rme96->wcreg & ~RME96_WCR_GAIN_0) |
 575                         RME96_WCR_GAIN_1;
 576                 break;
 577         case 3:
 578                 rme96->wcreg = (rme96->wcreg | RME96_WCR_GAIN_0) |
 579                         RME96_WCR_GAIN_1;
 580                 break;
 581         default:
 582                 return -EINVAL;
 583         }
 584         writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
 585         return 0;
 586 }
 587
 588 static int
 589 snd_rme96_capture_getrate(struct rme96 *rme96,
 590                           int *is_adat)
 591 {
 592         int n, rate;
 593
 594         *is_adat = 0;
 595         if (rme96->areg & RME96_AR_ANALOG) {
 596                 /* Analog input, overrides S/PDIF setting */
 597                 n = ((rme96->areg >> RME96_AR_BITPOS_F0) & 1) +
 598                         (((rme96->areg >> RME96_AR_BITPOS_F1) & 1) << 1);
 599                 switch (n) {
 600                 case 1:
 601                         rate = 32000;
 602                         break;
 603                 case 2:
 604                         rate = 44100;
 605                         break;
 606                 case 3:
 607                         rate = 48000;
 608                         break;
 609                 default:
 610                         return -1;
 611                 }
 612                 return (rme96->areg & RME96_AR_BITPOS_F2) ? rate << 1 : rate;
 613         }
 614
 615         rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
 616         if (rme96->rcreg & RME96_RCR_LOCK) {
 617                 /* ADAT rate */
 618                 *is_adat = 1;
 619                 if (rme96->rcreg & RME96_RCR_T_OUT) {
 620                         return 48000;
 621                 }
 622                 return 44100;
 623         }
 624
 625         if (rme96->rcreg & RME96_RCR_VERF) {
 626                 return -1;
 627         }
 628
 629         /* S/PDIF rate */
 630         n = ((rme96->rcreg >> RME96_RCR_BITPOS_F0) & 1) +
 631                 (((rme96->rcreg >> RME96_RCR_BITPOS_F1) & 1) << 1) +
 632                 (((rme96->rcreg >> RME96_RCR_BITPOS_F2) & 1) << 2);
 633
 634         switch (n) {
 635         case 0:
 636                 if (rme96->rcreg & RME96_RCR_T_OUT) {
 637                         return 64000;
 638                 }
 639                 return -1;
 640         case 3: return 96000;
 641         case 4: return 88200;
 642         case 5: return 48000;
 643         case 6: return 44100;
 644         case 7: return 32000;
 645         default:
 646                 break;
 647         }
 648         return -1;
 649 }
 650
 651 static int
 652 snd_rme96_playback_getrate(struct rme96 *rme96)
 653 {
 654         int rate, dummy;
 655
 656         if (!(rme96->wcreg & RME96_WCR_MASTER) &&
 657             snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
 658             (rate = snd_rme96_capture_getrate(rme96, &dummy)) > 0)
 659         {
 660                 /* slave clock */
 661                 return rate;
 662         }
 663         rate = ((rme96->wcreg >> RME96_WCR_BITPOS_FREQ_0) & 1) +
 664                 (((rme96->wcreg >> RME96_WCR_BITPOS_FREQ_1) & 1) << 1);
 665         switch (rate) {
 666         case 1:
 667                 rate = 32000;
 668                 break;
 669         case 2:
 670                 rate = 44100;
 671                 break;
 672         case 3:
 673                 rate = 48000;
 674                 break;
 675         default:
 676                 return -1;
 677         }
 678         return (rme96->wcreg & RME96_WCR_DS) ? rate << 1 : rate;
 679 }
 680
 681 static int
 682 snd_rme96_playback_setrate(struct rme96 *rme96,
 683                            int rate)
 684 {
 685         int ds;
 686
 687         ds = rme96->wcreg & RME96_WCR_DS;
 688         switch (rate) {
 689         case 32000:
 690                 rme96->wcreg &= ~RME96_WCR_DS;
 691                 rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_0) &
 692                         ~RME96_WCR_FREQ_1;
 693                 break;
 694         case 44100:
 695                 rme96->wcreg &= ~RME96_WCR_DS;
 696                 rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_1) &
 697                         ~RME96_WCR_FREQ_0;
 698                 break;
 699         case 48000:
 700                 rme96->wcreg &= ~RME96_WCR_DS;
 701                 rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_0) |
 702                         RME96_WCR_FREQ_1;
 703                 break;
 704         case 64000:
 705                 rme96->wcreg |= RME96_WCR_DS;
 706                 rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_0) &
 707                         ~RME96_WCR_FREQ_1;
 708                 break;
 709         case 88200:
 710                 rme96->wcreg |= RME96_WCR_DS;
 711                 rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_1) &
 712                         ~RME96_WCR_FREQ_0;
 713                 break;
 714         case 96000:
 715                 rme96->wcreg |= RME96_WCR_DS;
 716                 rme96->wcreg = (rme96->wcreg | RME96_WCR_FREQ_0) |
 717                         RME96_WCR_FREQ_1;
 718                 break;
 719         default:
 720                 return -EINVAL;
 721         }
 722         if ((!ds && rme96->wcreg & RME96_WCR_DS) ||
 723             (ds && !(rme96->wcreg & RME96_WCR_DS)))
 724         {
 725                 /* change to/from double-speed: reset the DAC (if available) */
 726                 snd_rme96_reset_dac(rme96);
 727         } else {
 728                 writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
 729         }
 730         return 0;
 731 }
 732
 733 static int
 734 snd_rme96_capture_analog_setrate(struct rme96 *rme96,
 735                                  int rate)
 736 {
 737         switch (rate) {
 738         case 32000:
 739                 rme96->areg = ((rme96->areg | RME96_AR_FREQPAD_0) &
 740                                ~RME96_AR_FREQPAD_1) & ~RME96_AR_FREQPAD_2;
 741                 break;
 742         case 44100:
 743                 rme96->areg = ((rme96->areg & ~RME96_AR_FREQPAD_0) |
 744                                RME96_AR_FREQPAD_1) & ~RME96_AR_FREQPAD_2;
 745                 break;
 746         case 48000:
 747                 rme96->areg = ((rme96->areg | RME96_AR_FREQPAD_0) |
 748                                RME96_AR_FREQPAD_1) & ~RME96_AR_FREQPAD_2;
 749                 break;
 750         case 64000:
 751                 if (rme96->rev < 4) {
 752                         return -EINVAL;
 753                 }
 754                 rme96->areg = ((rme96->areg | RME96_AR_FREQPAD_0) &
 755                                ~RME96_AR_FREQPAD_1) | RME96_AR_FREQPAD_2;
 756                 break;
 757         case 88200:
 758                 if (rme96->rev < 4) {
 759                         return -EINVAL;
 760                 }
 761                 rme96->areg = ((rme96->areg & ~RME96_AR_FREQPAD_0) |
 762                                RME96_AR_FREQPAD_1) | RME96_AR_FREQPAD_2;
 763                 break;
 764         case 96000:
 765                 rme96->areg = ((rme96->areg | RME96_AR_FREQPAD_0) |
 766                                RME96_AR_FREQPAD_1) | RME96_AR_FREQPAD_2;
 767                 break;
 768         default:
 769                 return -EINVAL;
 770         }
 771         writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
 772         return 0;
 773 }
 774
 775 static int
 776 snd_rme96_setclockmode(struct rme96 *rme96,
 777                        int mode)
 778 {
 779         switch (mode) {
 780         case RME96_CLOCKMODE_SLAVE:
 781                 /* AutoSync */
 782                 rme96->wcreg &= ~RME96_WCR_MASTER;
 783                 rme96->areg &= ~RME96_AR_WSEL;
 784                 break;
 785         case RME96_CLOCKMODE_MASTER:
 786                 /* Internal */
 787                 rme96->wcreg |= RME96_WCR_MASTER;
 788                 rme96->areg &= ~RME96_AR_WSEL;
 789                 break;
 790         case RME96_CLOCKMODE_WORDCLOCK:
 791                 /* Word clock is a master mode */
 792                 rme96->wcreg |= RME96_WCR_MASTER;
 793                 rme96->areg |= RME96_AR_WSEL;
 794                 break;
 795         default:
 796                 return -EINVAL;
 797         }
 798         writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
 799         writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
 800         return 0;
 801 }
 802
 803 static int
 804 snd_rme96_getclockmode(struct rme96 *rme96)
 805 {
 806         if (rme96->areg & RME96_AR_WSEL) {
 807                 return RME96_CLOCKMODE_WORDCLOCK;
 808         }
 809         return (rme96->wcreg & RME96_WCR_MASTER) ? RME96_CLOCKMODE_MASTER :
 810                 RME96_CLOCKMODE_SLAVE;
 811 }
 812
 813 static int
 814 snd_rme96_setinputtype(struct rme96 *rme96,
 815                        int type)
 816 {
 817         int n;
 818
 819         switch (type) {
 820         case RME96_INPUT_OPTICAL:
 821                 rme96->wcreg = (rme96->wcreg & ~RME96_WCR_INP_0) &
 822                         ~RME96_WCR_INP_1;
 823                 break;
 824         case RME96_INPUT_COAXIAL:
 825                 rme96->wcreg = (rme96->wcreg | RME96_WCR_INP_0) &
 826                         ~RME96_WCR_INP_1;
 827                 break;
 828         case RME96_INPUT_INTERNAL:
 829                 rme96->wcreg = (rme96->wcreg & ~RME96_WCR_INP_0) |
 830                         RME96_WCR_INP_1;
 831                 break;
 832         case RME96_INPUT_XLR:
 833                 if ((rme96->pci->device != PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST &&
 834                      rme96->pci->device != PCI_DEVICE_ID_RME_DIGI96_8_PRO) ||
 835                     (rme96->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST &&
 836                      rme96->rev > 4))
 837                 {
 838                         /* Only Digi96/8 PRO and Digi96/8 PAD supports XLR */
 839                         return -EINVAL;
 840                 }
 841                 rme96->wcreg = (rme96->wcreg | RME96_WCR_INP_0) |
 842                         RME96_WCR_INP_1;
 843                 break;
 844         case RME96_INPUT_ANALOG:
 845                 if (!RME96_HAS_ANALOG_IN(rme96)) {
 846                         return -EINVAL;
 847                 }
 848                 rme96->areg |= RME96_AR_ANALOG;
 849                 writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
 850                 if (rme96->rev < 4) {
 851                         /*
 852                          * Revision less than 004 does not support 64 and
 853                          * 88.2 kHz
 854                          */
 855                         if (snd_rme96_capture_getrate(rme96, &n) == 88200) {
 856                                 snd_rme96_capture_analog_setrate(rme96, 44100);
 857                         }
 858                         if (snd_rme96_capture_getrate(rme96, &n) == 64000) {
 859                                 snd_rme96_capture_analog_setrate(rme96, 32000);
 860                         }
 861                 }
 862                 return 0;
 863         default:
 864                 return -EINVAL;
 865         }
 866         if (type != RME96_INPUT_ANALOG && RME96_HAS_ANALOG_IN(rme96)) {
 867                 rme96->areg &= ~RME96_AR_ANALOG;
 868                 writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
 869         }
 870         writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
 871         return 0;
 872 }
 873
 874 static int
 875 snd_rme96_getinputtype(struct rme96 *rme96)
 876 {
 877         if (rme96->areg & RME96_AR_ANALOG) {
 878                 return RME96_INPUT_ANALOG;
 879         }
 880         return ((rme96->wcreg >> RME96_WCR_BITPOS_INP_0) & 1) +
 881                 (((rme96->wcreg >> RME96_WCR_BITPOS_INP_1) & 1) << 1);
 882 }
 883
 884 static void
 885 snd_rme96_setframelog(struct rme96 *rme96,
 886                       int n_channels,
 887                       int is_playback)
 888 {
 889         int frlog;
 890
 891         if (n_channels == 2) {
 892                 frlog = 1;
 893         } else {
 894                 /* assume 8 channels */
 895                 frlog = 3;
 896         }
 897         if (is_playback) {
 898                 frlog += (rme96->wcreg & RME96_WCR_MODE24) ? 2 : 1;
 899                 rme96->playback_frlog = frlog;
 900         } else {
 901                 frlog += (rme96->wcreg & RME96_WCR_MODE24_2) ? 2 : 1;
 902                 rme96->capture_frlog = frlog;
 903         }
 904 }
 905
 906 static int
 907 snd_rme96_playback_setformat(struct rme96 *rme96,
 908                              int format)
 909 {
 910         switch (format) {
 911         case SNDRV_PCM_FORMAT_S16_LE:
 912                 rme96->wcreg &= ~RME96_WCR_MODE24;
 913                 break;
 914         case SNDRV_PCM_FORMAT_S32_LE:
 915                 rme96->wcreg |= RME96_WCR_MODE24;
 916                 break;
 917         default:
 918                 return -EINVAL;
 919         }
 920         writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
 921         return 0;
 922 }
 923
 924 static int
 925 snd_rme96_capture_setformat(struct rme96 *rme96,
 926                             int format)
 927 {
 928         switch (format) {
 929         case SNDRV_PCM_FORMAT_S16_LE:
 930                 rme96->wcreg &= ~RME96_WCR_MODE24_2;
 931                 break;
 932         case SNDRV_PCM_FORMAT_S32_LE:
 933                 rme96->wcreg |= RME96_WCR_MODE24_2;
 934                 break;
 935         default:
 936                 return -EINVAL;
 937         }
 938         writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
 939         return 0;
 940 }
 941
 942 static void
 943 snd_rme96_set_period_properties(struct rme96 *rme96,
 944                                 size_t period_bytes)
 945 {
 946         switch (period_bytes) {
 947         case RME96_LARGE_BLOCK_SIZE:
 948                 rme96->wcreg &= ~RME96_WCR_ISEL;
 949                 break;
 950         case RME96_SMALL_BLOCK_SIZE:
 951                 rme96->wcreg |= RME96_WCR_ISEL;
 952                 break;
 953         default:
 954                 snd_BUG();
 955                 break;
 956         }
 957         rme96->wcreg &= ~RME96_WCR_IDIS;
 958         writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
 959 }
 960
 961 static int
 962 snd_rme96_playback_hw_params(struct snd_pcm_substream *substream,
 963                              struct snd_pcm_hw_params *params)
 964 {
 965         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
 966         struct snd_pcm_runtime *runtime = substream->runtime;
 967         int err, rate, dummy;
 968
 969         runtime->dma_area = (void __force *)(rme96->iobase +
 970                                              RME96_IO_PLAY_BUFFER);
 971         runtime->dma_addr = rme96->port + RME96_IO_PLAY_BUFFER;
 972         runtime->dma_bytes = RME96_BUFFER_SIZE;
 973
 974         spin_lock_irq(&rme96->lock);
 975         if (!(rme96->wcreg & RME96_WCR_MASTER) &&
 976             snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
 977             (rate = snd_rme96_capture_getrate(rme96, &dummy)) > 0)
 978         {
 979                 /* slave clock */
 980                 if ((int)params_rate(params) != rate) {
 981                         spin_unlock_irq(&rme96->lock);
 982                         return -EIO;
 983                 }
 984         } else if ((err = snd_rme96_playback_setrate(rme96, params_rate(params))) < 0) {
 985                 spin_unlock_irq(&rme96->lock);
 986                 return err;
 987         }
 988         if ((err = snd_rme96_playback_setformat(rme96, params_format(params))) < 0) {
 989                 spin_unlock_irq(&rme96->lock);
 990                 return err;
 991         }
 992         snd_rme96_setframelog(rme96, params_channels(params), 1);
 993         if (rme96->capture_periodsize != 0) {
 994                 if (params_period_size(params) << rme96->playback_frlog !=
 995                     rme96->capture_periodsize)
 996                 {
 997                         spin_unlock_irq(&rme96->lock);
 998                         return -EBUSY;
 999                 }
1000         }
1001         rme96->playback_periodsize =
1002                 params_period_size(params) << rme96->playback_frlog;
1003         snd_rme96_set_period_properties(rme96, rme96->playback_periodsize);
1004         /* S/PDIF setup */
1005         if ((rme96->wcreg & RME96_WCR_ADAT) == 0) {
1006                 rme96->wcreg &= ~(RME96_WCR_PRO | RME96_WCR_DOLBY | RME96_WCR_EMP);
1007                 writel(rme96->wcreg |= rme96->wcreg_spdif_stream, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1008         }
1009         spin_unlock_irq(&rme96->lock);
1010
1011         return 0;
1012 }
1013
1014 static int
1015 snd_rme96_capture_hw_params(struct snd_pcm_substream *substream,
1016                             struct snd_pcm_hw_params *params)
1017 {
1018         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1019         struct snd_pcm_runtime *runtime = substream->runtime;
1020         int err, isadat, rate;
1021
1022         runtime->dma_area = (void __force *)(rme96->iobase +
1023                                              RME96_IO_REC_BUFFER);
1024         runtime->dma_addr = rme96->port + RME96_IO_REC_BUFFER;
1025         runtime->dma_bytes = RME96_BUFFER_SIZE;
1026
1027         spin_lock_irq(&rme96->lock);
1028         if ((err = snd_rme96_capture_setformat(rme96, params_format(params))) < 0) {
1029                 spin_unlock_irq(&rme96->lock);
1030                 return err;
1031         }
1032         if (snd_rme96_getinputtype(rme96) == RME96_INPUT_ANALOG) {
1033                 if ((err = snd_rme96_capture_analog_setrate(rme96,
1034                                                             params_rate(params))) < 0)
1035                 {
1036                         spin_unlock_irq(&rme96->lock);
1037                         return err;
1038                 }
1039         } else if ((rate = snd_rme96_capture_getrate(rme96, &isadat)) > 0) {
1040                 if ((int)params_rate(params) != rate) {
1041                         spin_unlock_irq(&rme96->lock);
1042                         return -EIO;
1043                 }
1044                 if ((isadat && runtime->hw.channels_min == 2) ||
1045                     (!isadat && runtime->hw.channels_min == 8))
1046                 {
1047                         spin_unlock_irq(&rme96->lock);
1048                         return -EIO;
1049                 }
1050         }
1051         snd_rme96_setframelog(rme96, params_channels(params), 0);
1052         if (rme96->playback_periodsize != 0) {
1053                 if (params_period_size(params) << rme96->capture_frlog !=
1054                     rme96->playback_periodsize)
1055                 {
1056                         spin_unlock_irq(&rme96->lock);
1057                         return -EBUSY;
1058                 }
1059         }
1060         rme96->capture_periodsize =
1061                 params_period_size(params) << rme96->capture_frlog;
1062         snd_rme96_set_period_properties(rme96, rme96->capture_periodsize);
1063         spin_unlock_irq(&rme96->lock);
1064
1065         return 0;
1066 }
1067
1068 static void
1069 snd_rme96_playback_start(struct rme96 *rme96,
1070                          int from_pause)
1071 {
1072         if (!from_pause) {
1073                 writel(0, rme96->iobase + RME96_IO_RESET_PLAY_POS);
1074         }
1075
1076         rme96->wcreg |= RME96_WCR_START;
1077         writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1078 }
1079
1080 static void
1081 snd_rme96_capture_start(struct rme96 *rme96,
1082                         int from_pause)
1083 {
1084         if (!from_pause) {
1085                 writel(0, rme96->iobase + RME96_IO_RESET_REC_POS);
1086         }
1087
1088         rme96->wcreg |= RME96_WCR_START_2;
1089         writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1090 }
1091
1092 static void
1093 snd_rme96_playback_stop(struct rme96 *rme96)
1094 {
1095         /*
1096          * Check if there is an unconfirmed IRQ, if so confirm it, or else
1097          * the hardware will not stop generating interrupts
1098          */
1099         rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
1100         if (rme96->rcreg & RME96_RCR_IRQ) {
1101                 writel(0, rme96->iobase + RME96_IO_CONFIRM_PLAY_IRQ);
1102         }
1103         rme96->wcreg &= ~RME96_WCR_START;
1104         writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1105 }
1106
1107 static void
1108 snd_rme96_capture_stop(struct rme96 *rme96)
1109 {
1110         rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
1111         if (rme96->rcreg & RME96_RCR_IRQ_2) {
1112                 writel(0, rme96->iobase + RME96_IO_CONFIRM_REC_IRQ);
1113         }
1114         rme96->wcreg &= ~RME96_WCR_START_2;
1115         writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1116 }
1117
1118 static irqreturn_t
1119 snd_rme96_interrupt(int irq,
1120                     void *dev_id,
1121                     struct pt_regs *regs)
1122 {
1123         struct rme96 *rme96 = (struct rme96 *)dev_id;
1124
1125         rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
1126         /* fastpath out, to ease interrupt sharing */
1127         if (!((rme96->rcreg & RME96_RCR_IRQ) ||
1128               (rme96->rcreg & RME96_RCR_IRQ_2)))
1129         {
1130                 return IRQ_NONE;
1131         }
1132
1133         if (rme96->rcreg & RME96_RCR_IRQ) {
1134                 /* playback */
1135                 snd_pcm_period_elapsed(rme96->playback_substream);
1136                 writel(0, rme96->iobase + RME96_IO_CONFIRM_PLAY_IRQ);
1137         }
1138         if (rme96->rcreg & RME96_RCR_IRQ_2) {
1139                 /* capture */
1140                 snd_pcm_period_elapsed(rme96->capture_substream);
1141                 writel(0, rme96->iobase + RME96_IO_CONFIRM_REC_IRQ);
1142         }
1143         return IRQ_HANDLED;
1144 }
1145
1146 static unsigned int period_bytes[] = { RME96_SMALL_BLOCK_SIZE, RME96_LARGE_BLOCK_SIZE };
1147
1148 static struct snd_pcm_hw_constraint_list hw_constraints_period_bytes = {
1149         .count = ARRAY_SIZE(period_bytes),
1150         .list = period_bytes,
1151         .mask = 0
1152 };
1153
1154 static int
1155 snd_rme96_playback_spdif_open(struct snd_pcm_substream *substream)
1156 {
1157         int rate, dummy;
1158         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1159         struct snd_pcm_runtime *runtime = substream->runtime;
1160
1161         snd_pcm_set_sync(substream);
1162
1163         spin_lock_irq(&rme96->lock);
1164         if (rme96->playback_substream != NULL) {
1165                 spin_unlock_irq(&rme96->lock);
1166                 return -EBUSY;
1167         }
1168         rme96->wcreg &= ~RME96_WCR_ADAT;
1169         writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1170         rme96->playback_substream = substream;
1171         spin_unlock_irq(&rme96->lock);
1172
1173         runtime->hw = snd_rme96_playback_spdif_info;
1174         if (!(rme96->wcreg & RME96_WCR_MASTER) &&
1175             snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
1176             (rate = snd_rme96_capture_getrate(rme96, &dummy)) > 0)
1177         {
1178                 /* slave clock */
1179                 runtime->hw.rates = snd_rme96_ratecode(rate);
1180                 runtime->hw.rate_min = rate;
1181                 runtime->hw.rate_max = rate;
1182         }
1183         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, RME96_BUFFER_SIZE, RME96_BUFFER_SIZE);
1184         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, &hw_constraints_period_bytes);
1185
1186         rme96->wcreg_spdif_stream = rme96->wcreg_spdif;
1187         rme96->spdif_ctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1188         snd_ctl_notify(rme96->card, SNDRV_CTL_EVENT_MASK_VALUE |
1189                        SNDRV_CTL_EVENT_MASK_INFO, &rme96->spdif_ctl->id);
1190         return 0;
1191 }
1192
1193 static int
1194 snd_rme96_capture_spdif_open(struct snd_pcm_substream *substream)
1195 {
1196         int isadat, rate;
1197         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1198         struct snd_pcm_runtime *runtime = substream->runtime;
1199
1200         snd_pcm_set_sync(substream);
1201
1202         runtime->hw = snd_rme96_capture_spdif_info;
1203         if (snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
1204             (rate = snd_rme96_capture_getrate(rme96, &isadat)) > 0)
1205         {
1206                 if (isadat) {
1207                         return -EIO;
1208                 }
1209                 runtime->hw.rates = snd_rme96_ratecode(rate);
1210                 runtime->hw.rate_min = rate;
1211                 runtime->hw.rate_max = rate;
1212         }
1213
1214         spin_lock_irq(&rme96->lock);
1215         if (rme96->capture_substream != NULL) {
1216                 spin_unlock_irq(&rme96->lock);
1217                 return -EBUSY;
1218         }
1219         rme96->capture_substream = substream;
1220         spin_unlock_irq(&rme96->lock);
1221
1222         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, RME96_BUFFER_SIZE, RME96_BUFFER_SIZE);
1223         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, &hw_constraints_period_bytes);
1224
1225         return 0;
1226 }
1227
1228 static int
1229 snd_rme96_playback_adat_open(struct snd_pcm_substream *substream)
1230 {
1231         int rate, dummy;
1232         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1233         struct snd_pcm_runtime *runtime = substream->runtime;
1234
1235         snd_pcm_set_sync(substream);
1236
1237         spin_lock_irq(&rme96->lock);
1238         if (rme96->playback_substream != NULL) {
1239                 spin_unlock_irq(&rme96->lock);
1240                 return -EBUSY;
1241         }
1242         rme96->wcreg |= RME96_WCR_ADAT;
1243         writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1244         rme96->playback_substream = substream;
1245         spin_unlock_irq(&rme96->lock);
1246
1247         runtime->hw = snd_rme96_playback_adat_info;
1248         if (!(rme96->wcreg & RME96_WCR_MASTER) &&
1249             snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
1250             (rate = snd_rme96_capture_getrate(rme96, &dummy)) > 0)
1251         {
1252                 /* slave clock */
1253                 runtime->hw.rates = snd_rme96_ratecode(rate);
1254                 runtime->hw.rate_min = rate;
1255                 runtime->hw.rate_max = rate;
1256         }
1257         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, RME96_BUFFER_SIZE, RME96_BUFFER_SIZE);
1258         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, &hw_constraints_period_bytes);
1259         return 0;
1260 }
1261
1262 static int
1263 snd_rme96_capture_adat_open(struct snd_pcm_substream *substream)
1264 {
1265         int isadat, rate;
1266         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1267         struct snd_pcm_runtime *runtime = substream->runtime;
1268
1269         snd_pcm_set_sync(substream);
1270
1271         runtime->hw = snd_rme96_capture_adat_info;
1272         if (snd_rme96_getinputtype(rme96) == RME96_INPUT_ANALOG) {
1273                 /* makes no sense to use analog input. Note that analog
1274                    expension cards AEB4/8-I are RME96_INPUT_INTERNAL */
1275                 return -EIO;
1276         }
1277         if ((rate = snd_rme96_capture_getrate(rme96, &isadat)) > 0) {
1278                 if (!isadat) {
1279                         return -EIO;
1280                 }
1281                 runtime->hw.rates = snd_rme96_ratecode(rate);
1282                 runtime->hw.rate_min = rate;
1283                 runtime->hw.rate_max = rate;
1284         }
1285
1286         spin_lock_irq(&rme96->lock);
1287         if (rme96->capture_substream != NULL) {
1288                 spin_unlock_irq(&rme96->lock);
1289                 return -EBUSY;
1290         }
1291         rme96->capture_substream = substream;
1292         spin_unlock_irq(&rme96->lock);
1293
1294         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, RME96_BUFFER_SIZE, RME96_BUFFER_SIZE);
1295         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, &hw_constraints_period_bytes);
1296         return 0;
1297 }
1298
1299 static int
1300 snd_rme96_playback_close(struct snd_pcm_substream *substream)
1301 {
1302         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1303         int spdif = 0;
1304
1305         spin_lock_irq(&rme96->lock);
1306         if (RME96_ISPLAYING(rme96)) {
1307                 snd_rme96_playback_stop(rme96);
1308         }
1309         rme96->playback_substream = NULL;
1310         rme96->playback_periodsize = 0;
1311         spdif = (rme96->wcreg & RME96_WCR_ADAT) == 0;
1312         spin_unlock_irq(&rme96->lock);
1313         if (spdif) {
1314                 rme96->spdif_ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1315                 snd_ctl_notify(rme96->card, SNDRV_CTL_EVENT_MASK_VALUE |
1316                                SNDRV_CTL_EVENT_MASK_INFO, &rme96->spdif_ctl->id);
1317         }
1318         return 0;
1319 }
1320
1321 static int
1322 snd_rme96_capture_close(struct snd_pcm_substream *substream)
1323 {
1324         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1325
1326         spin_lock_irq(&rme96->lock);
1327         if (RME96_ISRECORDING(rme96)) {
1328                 snd_rme96_capture_stop(rme96);
1329         }
1330         rme96->capture_substream = NULL;
1331         rme96->capture_periodsize = 0;
1332         spin_unlock_irq(&rme96->lock);
1333         return 0;
1334 }
1335
1336 static int
1337 snd_rme96_playback_prepare(struct snd_pcm_substream *substream)
1338 {
1339         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1340
1341         spin_lock_irq(&rme96->lock);
1342         if (RME96_ISPLAYING(rme96)) {
1343                 snd_rme96_playback_stop(rme96);
1344         }
1345         writel(0, rme96->iobase + RME96_IO_RESET_PLAY_POS);
1346         spin_unlock_irq(&rme96->lock);
1347         return 0;
1348 }
1349
1350 static int
1351 snd_rme96_capture_prepare(struct snd_pcm_substream *substream)
1352 {
1353         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1354
1355         spin_lock_irq(&rme96->lock);
1356         if (RME96_ISRECORDING(rme96)) {
1357                 snd_rme96_capture_stop(rme96);
1358         }
1359         writel(0, rme96->iobase + RME96_IO_RESET_REC_POS);
1360         spin_unlock_irq(&rme96->lock);
1361         return 0;
1362 }
1363
1364 static int
1365 snd_rme96_playback_trigger(struct snd_pcm_substream *substream,
1366                            int cmd)
1367 {
1368         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1369
1370         switch (cmd) {
1371         case SNDRV_PCM_TRIGGER_START:
1372                 if (!RME96_ISPLAYING(rme96)) {
1373                         if (substream != rme96->playback_substream) {
1374                                 return -EBUSY;
1375                         }
1376                         snd_rme96_playback_start(rme96, 0);
1377                 }
1378                 break;
1379
1380         case SNDRV_PCM_TRIGGER_STOP:
1381                 if (RME96_ISPLAYING(rme96)) {
1382                         if (substream != rme96->playback_substream) {
1383                                 return -EBUSY;
1384                         }
1385                         snd_rme96_playback_stop(rme96);
1386                 }
1387                 break;
1388
1389         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1390                 if (RME96_ISPLAYING(rme96)) {
1391                         snd_rme96_playback_stop(rme96);
1392                 }
1393                 break;
1394
1395         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1396                 if (!RME96_ISPLAYING(rme96)) {
1397                         snd_rme96_playback_start(rme96, 1);
1398                 }
1399                 break;
1400
1401         default:
1402                 return -EINVAL;
1403         }
1404         return 0;
1405 }
1406
1407 static int
1408 snd_rme96_capture_trigger(struct snd_pcm_substream *substream,
1409                           int cmd)
1410 {
1411         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1412
1413         switch (cmd) {
1414         case SNDRV_PCM_TRIGGER_START:
1415                 if (!RME96_ISRECORDING(rme96)) {
1416                         if (substream != rme96->capture_substream) {
1417                                 return -EBUSY;
1418                         }
1419                         snd_rme96_capture_start(rme96, 0);
1420                 }
1421                 break;
1422
1423         case SNDRV_PCM_TRIGGER_STOP:
1424                 if (RME96_ISRECORDING(rme96)) {
1425                         if (substream != rme96->capture_substream) {
1426                                 return -EBUSY;
1427                         }
1428                         snd_rme96_capture_stop(rme96);
1429                 }
1430                 break;
1431
1432         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1433                 if (RME96_ISRECORDING(rme96)) {
1434                         snd_rme96_capture_stop(rme96);
1435                 }
1436                 break;
1437
1438         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1439                 if (!RME96_ISRECORDING(rme96)) {
1440                         snd_rme96_capture_start(rme96, 1);
1441                 }
1442                 break;
1443
1444         default:
1445                 return -EINVAL;
1446         }
1447
1448         return 0;
1449 }
1450
1451 static snd_pcm_uframes_t
1452 snd_rme96_playback_pointer(struct snd_pcm_substream *substream)
1453 {
1454         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1455         return snd_rme96_playback_ptr(rme96);
1456 }
1457
1458 static snd_pcm_uframes_t
1459 snd_rme96_capture_pointer(struct snd_pcm_substream *substream)
1460 {
1461         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1462         return snd_rme96_capture_ptr(rme96);
1463 }
1464
1465 static struct snd_pcm_ops snd_rme96_playback_spdif_ops = {
1466         .open =         snd_rme96_playback_spdif_open,
1467         .close =        snd_rme96_playback_close,
1468         .ioctl =        snd_pcm_lib_ioctl,
1469         .hw_params =    snd_rme96_playback_hw_params,
1470         .prepare =      snd_rme96_playback_prepare,
1471         .trigger =      snd_rme96_playback_trigger,
1472         .pointer =      snd_rme96_playback_pointer,
1473         .copy =         snd_rme96_playback_copy,
1474         .silence =      snd_rme96_playback_silence,
1475         .mmap =         snd_pcm_lib_mmap_iomem,
1476 };
1477
1478 static struct snd_pcm_ops snd_rme96_capture_spdif_ops = {
1479         .open =         snd_rme96_capture_spdif_open,
1480         .close =        snd_rme96_capture_close,
1481         .ioctl =        snd_pcm_lib_ioctl,
1482         .hw_params =    snd_rme96_capture_hw_params,
1483         .prepare =      snd_rme96_capture_prepare,
1484         .trigger =      snd_rme96_capture_trigger,
1485         .pointer =      snd_rme96_capture_pointer,
1486         .copy =         snd_rme96_capture_copy,
1487         .mmap =         snd_pcm_lib_mmap_iomem,
1488 };
1489
1490 static struct snd_pcm_ops snd_rme96_playback_adat_ops = {
1491         .open =         snd_rme96_playback_adat_open,
1492         .close =        snd_rme96_playback_close,
1493         .ioctl =        snd_pcm_lib_ioctl,
1494         .hw_params =    snd_rme96_playback_hw_params,
1495         .prepare =      snd_rme96_playback_prepare,
1496         .trigger =      snd_rme96_playback_trigger,
1497         .pointer =      snd_rme96_playback_pointer,
1498         .copy =         snd_rme96_playback_copy,
1499         .silence =      snd_rme96_playback_silence,
1500         .mmap =         snd_pcm_lib_mmap_iomem,
1501 };
1502
1503 static struct snd_pcm_ops snd_rme96_capture_adat_ops = {
1504         .open =         snd_rme96_capture_adat_open,
1505         .close =        snd_rme96_capture_close,
1506         .ioctl =        snd_pcm_lib_ioctl,
1507         .hw_params =    snd_rme96_capture_hw_params,
1508         .prepare =      snd_rme96_capture_prepare,
1509         .trigger =      snd_rme96_capture_trigger,
1510         .pointer =      snd_rme96_capture_pointer,
1511         .copy =         snd_rme96_capture_copy,
1512         .mmap =         snd_pcm_lib_mmap_iomem,
1513 };
1514
1515 static void
1516 snd_rme96_free(void *private_data)
1517 {
1518         struct rme96 *rme96 = (struct rme96 *)private_data;
1519
1520         if (rme96 == NULL) {
1521                 return;
1522         }
1523         if (rme96->irq >= 0) {
1524                 snd_rme96_playback_stop(rme96);
1525                 snd_rme96_capture_stop(rme96);
1526                 rme96->areg &= ~RME96_AR_DAC_EN;
1527                 writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
1528                 free_irq(rme96->irq, (void *)rme96);
1529                 rme96->irq = -1;
1530         }
1531         if (rme96->iobase) {
1532                 iounmap(rme96->iobase);
1533                 rme96->iobase = NULL;
1534         }
1535         if (rme96->port) {
1536                 pci_release_regions(rme96->pci);
1537                 rme96->port = 0;
1538         }
1539         pci_disable_device(rme96->pci);
1540 }
1541
1542 static void
1543 snd_rme96_free_spdif_pcm(struct snd_pcm *pcm)
1544 {
1545         struct rme96 *rme96 = (struct rme96 *) pcm->private_data;
1546         rme96->spdif_pcm = NULL;
1547 }
1548
1549 static void
1550 snd_rme96_free_adat_pcm(struct snd_pcm *pcm)
1551 {
1552         struct rme96 *rme96 = (struct rme96 *) pcm->private_data;
1553         rme96->adat_pcm = NULL;
1554 }
1555
1556 static int __devinit
1557 snd_rme96_create(struct rme96 *rme96)
1558 {
1559         struct pci_dev *pci = rme96->pci;
1560         int err;
1561
1562         rme96->irq = -1;
1563         spin_lock_init(&rme96->lock);
1564
1565         if ((err = pci_enable_device(pci)) < 0)
1566                 return err;
1567
1568         if ((err = pci_request_regions(pci, "RME96")) < 0)
1569                 return err;
1570         rme96->port = pci_resource_start(rme96->pci, 0);
1571
1572         if (request_irq(pci->irq, snd_rme96_interrupt, SA_INTERRUPT|SA_SHIRQ, "RME96", (void *)rme96)) {
1573                 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
1574                 return -EBUSY;
1575         }
1576         rme96->irq = pci->irq;
1577
1578         if ((rme96->iobase = ioremap_nocache(rme96->port, RME96_IO_SIZE)) == 0) {
1579                 snd_printk(KERN_ERR "unable to remap memory region 0x%lx-0x%lx\n", rme96->port, rme96->port + RME96_IO_SIZE - 1);
1580                 return -ENOMEM;
1581         }
1582
1583         /* read the card's revision number */
1584         pci_read_config_byte(pci, 8, &rme96->rev);
1585
1586         /* set up ALSA pcm device for S/PDIF */
1587         if ((err = snd_pcm_new(rme96->card, "Digi96 IEC958", 0,
1588                                1, 1, &rme96->spdif_pcm)) < 0)
1589         {
1590                 return err;
1591         }
1592         rme96->spdif_pcm->private_data = rme96;
1593         rme96->spdif_pcm->private_free = snd_rme96_free_spdif_pcm;
1594         strcpy(rme96->spdif_pcm->name, "Digi96 IEC958");
1595         snd_pcm_set_ops(rme96->spdif_pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_rme96_playback_spdif_ops);
1596         snd_pcm_set_ops(rme96->spdif_pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_rme96_capture_spdif_ops);
1597
1598         rme96->spdif_pcm->info_flags = 0;
1599
1600         /* set up ALSA pcm device for ADAT */
1601         if (pci->device == PCI_DEVICE_ID_RME_DIGI96) {
1602                 /* ADAT is not available on the base model */
1603                 rme96->adat_pcm = NULL;
1604         } else {
1605                 if ((err = snd_pcm_new(rme96->card, "Digi96 ADAT", 1,
1606                                        1, 1, &rme96->adat_pcm)) < 0)
1607                 {
1608                         return err;
1609                 }
1610                 rme96->adat_pcm->private_data = rme96;
1611                 rme96->adat_pcm->private_free = snd_rme96_free_adat_pcm;
1612                 strcpy(rme96->adat_pcm->name, "Digi96 ADAT");
1613                 snd_pcm_set_ops(rme96->adat_pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_rme96_playback_adat_ops);
1614                 snd_pcm_set_ops(rme96->adat_pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_rme96_capture_adat_ops);
1615
1616                 rme96->adat_pcm->info_flags = 0;
1617         }
1618
1619         rme96->playback_periodsize = 0;
1620         rme96->capture_periodsize = 0;
1621
1622         /* make sure playback/capture is stopped, if by some reason active */
1623         snd_rme96_playback_stop(rme96);
1624         snd_rme96_capture_stop(rme96);
1625
1626         /* set default values in registers */
1627         rme96->wcreg =
1628                 RME96_WCR_FREQ_1 | /* set 44.1 kHz playback */
1629                 RME96_WCR_SEL |    /* normal playback */
1630                 RME96_WCR_MASTER | /* set to master clock mode */
1631                 RME96_WCR_INP_0;   /* set coaxial input */
1632
1633         rme96->areg = RME96_AR_FREQPAD_1; /* set 44.1 kHz analog capture */
1634
1635         writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1636         writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
1637
1638         /* reset the ADC */
1639         writel(rme96->areg | RME96_AR_PD2,
1640                rme96->iobase + RME96_IO_ADDITIONAL_REG);
1641         writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
1642
1643         /* reset and enable the DAC (order is important). */
1644         snd_rme96_reset_dac(rme96);
1645         rme96->areg |= RME96_AR_DAC_EN;
1646         writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
1647
1648         /* reset playback and record buffer pointers */
1649         writel(0, rme96->iobase + RME96_IO_RESET_PLAY_POS);
1650         writel(0, rme96->iobase + RME96_IO_RESET_REC_POS);
1651
1652         /* reset volume */
1653         rme96->vol[0] = rme96->vol[1] = 0;
1654         if (RME96_HAS_ANALOG_OUT(rme96)) {
1655                 snd_rme96_apply_dac_volume(rme96);
1656         }
1657
1658         /* init switch interface */
1659         if ((err = snd_rme96_create_switches(rme96->card, rme96)) < 0) {
1660                 return err;
1661         }
1662
1663         /* init proc interface */
1664         snd_rme96_proc_init(rme96);
1665
1666         return 0;
1667 }
1668
1669 /*
1670  * proc interface
1671  */
1672
1673 static void
1674 snd_rme96_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
1675 {
1676         int n;
1677         struct rme96 *rme96 = (struct rme96 *)entry->private_data;
1678
1679         rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
1680
1681         snd_iprintf(buffer, rme96->card->longname);
1682         snd_iprintf(buffer, " (index #%d)\n", rme96->card->number + 1);
1683
1684         snd_iprintf(buffer, "\nGeneral settings\n");
1685         if (rme96->wcreg & RME96_WCR_IDIS) {
1686                 snd_iprintf(buffer, "  period size: N/A (interrupts "
1687                             "disabled)\n");
1688         } else if (rme96->wcreg & RME96_WCR_ISEL) {
1689                 snd_iprintf(buffer, "  period size: 2048 bytes\n");
1690         } else {
1691                 snd_iprintf(buffer, "  period size: 8192 bytes\n");
1692         }
1693         snd_iprintf(buffer, "\nInput settings\n");
1694         switch (snd_rme96_getinputtype(rme96)) {
1695         case RME96_INPUT_OPTICAL:
1696                 snd_iprintf(buffer, "  input: optical");
1697                 break;
1698         case RME96_INPUT_COAXIAL:
1699                 snd_iprintf(buffer, "  input: coaxial");
1700                 break;
1701         case RME96_INPUT_INTERNAL:
1702                 snd_iprintf(buffer, "  input: internal");
1703                 break;
1704         case RME96_INPUT_XLR:
1705                 snd_iprintf(buffer, "  input: XLR");
1706                 break;
1707         case RME96_INPUT_ANALOG:
1708                 snd_iprintf(buffer, "  input: analog");
1709                 break;
1710         }
1711         if (snd_rme96_capture_getrate(rme96, &n) < 0) {
1712                 snd_iprintf(buffer, "\n  sample rate: no valid signal\n");
1713         } else {
1714                 if (n) {
1715                         snd_iprintf(buffer, " (8 channels)\n");
1716                 } else {
1717                         snd_iprintf(buffer, " (2 channels)\n");
1718                 }
1719                 snd_iprintf(buffer, "  sample rate: %d Hz\n",
1720                             snd_rme96_capture_getrate(rme96, &n));
1721         }
1722         if (rme96->wcreg & RME96_WCR_MODE24_2) {
1723                 snd_iprintf(buffer, "  sample format: 24 bit\n");
1724         } else {
1725                 snd_iprintf(buffer, "  sample format: 16 bit\n");
1726         }
1727
1728         snd_iprintf(buffer, "\nOutput settings\n");
1729         if (rme96->wcreg & RME96_WCR_SEL) {
1730                 snd_iprintf(buffer, "  output signal: normal playback\n");
1731         } else {
1732                 snd_iprintf(buffer, "  output signal: same as input\n");
1733         }
1734         snd_iprintf(buffer, "  sample rate: %d Hz\n",
1735                     snd_rme96_playback_getrate(rme96));
1736         if (rme96->wcreg & RME96_WCR_MODE24) {
1737                 snd_iprintf(buffer, "  sample format: 24 bit\n");
1738         } else {
1739                 snd_iprintf(buffer, "  sample format: 16 bit\n");
1740         }
1741         if (rme96->areg & RME96_AR_WSEL) {
1742                 snd_iprintf(buffer, "  sample clock source: word clock\n");
1743         } else if (rme96->wcreg & RME96_WCR_MASTER) {
1744                 snd_iprintf(buffer, "  sample clock source: internal\n");
1745         } else if (snd_rme96_getinputtype(rme96) == RME96_INPUT_ANALOG) {
1746                 snd_iprintf(buffer, "  sample clock source: autosync (internal anyway due to analog input setting)\n");
1747         } else if (snd_rme96_capture_getrate(rme96, &n) < 0) {
1748                 snd_iprintf(buffer, "  sample clock source: autosync (internal anyway due to no valid signal)\n");
1749         } else {
1750                 snd_iprintf(buffer, "  sample clock source: autosync\n");
1751         }
1752         if (rme96->wcreg & RME96_WCR_PRO) {
1753                 snd_iprintf(buffer, "  format: AES/EBU (professional)\n");
1754         } else {
1755                 snd_iprintf(buffer, "  format: IEC958 (consumer)\n");
1756         }
1757         if (rme96->wcreg & RME96_WCR_EMP) {
1758                 snd_iprintf(buffer, "  emphasis: on\n");
1759         } else {
1760                 snd_iprintf(buffer, "  emphasis: off\n");
1761         }
1762         if (rme96->wcreg & RME96_WCR_DOLBY) {
1763                 snd_iprintf(buffer, "  non-audio (dolby): on\n");
1764         } else {
1765                 snd_iprintf(buffer, "  non-audio (dolby): off\n");
1766         }
1767         if (RME96_HAS_ANALOG_IN(rme96)) {
1768                 snd_iprintf(buffer, "\nAnalog output settings\n");
1769                 switch (snd_rme96_getmontracks(rme96)) {
1770                 case RME96_MONITOR_TRACKS_1_2:
1771                         snd_iprintf(buffer, "  monitored ADAT tracks: 1+2\n");
1772                         break;
1773                 case RME96_MONITOR_TRACKS_3_4:
1774                         snd_iprintf(buffer, "  monitored ADAT tracks: 3+4\n");
1775                         break;
1776                 case RME96_MONITOR_TRACKS_5_6:
1777                         snd_iprintf(buffer, "  monitored ADAT tracks: 5+6\n");
1778                         break;
1779                 case RME96_MONITOR_TRACKS_7_8:
1780                         snd_iprintf(buffer, "  monitored ADAT tracks: 7+8\n");
1781                         break;
1782                 }
1783                 switch (snd_rme96_getattenuation(rme96)) {
1784                 case RME96_ATTENUATION_0:
1785                         snd_iprintf(buffer, "  attenuation: 0 dB\n");
1786                         break;
1787                 case RME96_ATTENUATION_6:
1788                         snd_iprintf(buffer, "  attenuation: -6 dB\n");
1789                         break;
1790                 case RME96_ATTENUATION_12:
1791                         snd_iprintf(buffer, "  attenuation: -12 dB\n");
1792                         break;
1793                 case RME96_ATTENUATION_18:
1794                         snd_iprintf(buffer, "  attenuation: -18 dB\n");
1795                         break;
1796                 }
1797                 snd_iprintf(buffer, "  volume left: %u\n", rme96->vol[0]);
1798                 snd_iprintf(buffer, "  volume right: %u\n", rme96->vol[1]);
1799         }
1800 }
1801
1802 static void __devinit
1803 snd_rme96_proc_init(struct rme96 *rme96)
1804 {
1805         struct snd_info_entry *entry;
1806
1807         if (! snd_card_proc_new(rme96->card, "rme96", &entry))
1808                 snd_info_set_text_ops(entry, rme96, 1024, snd_rme96_proc_read);
1809 }
1810
1811 /*
1812  * control interface
1813  */
1814
1815 static int
1816 snd_rme96_info_loopback_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1817 {
1818         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1819         uinfo->count = 1;
1820         uinfo->value.integer.min = 0;
1821         uinfo->value.integer.max = 1;
1822         return 0;
1823 }
1824 static int
1825 snd_rme96_get_loopback_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1826 {
1827         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1828
1829         spin_lock_irq(&rme96->lock);
1830         ucontrol->value.integer.value[0] = rme96->wcreg & RME96_WCR_SEL ? 0 : 1;
1831         spin_unlock_irq(&rme96->lock);
1832         return 0;
1833 }
1834 static int
1835 snd_rme96_put_loopback_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1836 {
1837         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1838         unsigned int val;
1839         int change;
1840
1841         val = ucontrol->value.integer.value[0] ? 0 : RME96_WCR_SEL;
1842         spin_lock_irq(&rme96->lock);
1843         val = (rme96->wcreg & ~RME96_WCR_SEL) | val;
1844         change = val != rme96->wcreg;
1845         rme96->wcreg = val;
1846         writel(val, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1847         spin_unlock_irq(&rme96->lock);
1848         return change;
1849 }
1850
1851 static int
1852 snd_rme96_info_inputtype_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1853 {
1854         static char *_texts[5] = { "Optical", "Coaxial", "Internal", "XLR", "Analog" };
1855         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1856         char *texts[5] = { _texts[0], _texts[1], _texts[2], _texts[3], _texts[4] };
1857
1858         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1859         uinfo->count = 1;
1860         switch (rme96->pci->device) {
1861         case PCI_DEVICE_ID_RME_DIGI96:
1862         case PCI_DEVICE_ID_RME_DIGI96_8:
1863                 uinfo->value.enumerated.items = 3;
1864                 break;
1865         case PCI_DEVICE_ID_RME_DIGI96_8_PRO:
1866                 uinfo->value.enumerated.items = 4;
1867                 break;
1868         case PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST:
1869                 if (rme96->rev > 4) {
1870                         /* PST */
1871                         uinfo->value.enumerated.items = 4;
1872                         texts[3] = _texts[4]; /* Analog instead of XLR */
1873                 } else {
1874                         /* PAD */
1875                         uinfo->value.enumerated.items = 5;
1876                 }
1877                 break;
1878         default:
1879                 snd_BUG();
1880                 break;
1881         }
1882         if (uinfo->value.enumerated.item > uinfo->value.enumerated.items - 1) {
1883                 uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
1884         }
1885         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1886         return 0;
1887 }
1888 static int
1889 snd_rme96_get_inputtype_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1890 {
1891         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1892         unsigned int items = 3;
1893
1894         spin_lock_irq(&rme96->lock);
1895         ucontrol->value.enumerated.item[0] = snd_rme96_getinputtype(rme96);
1896
1897         switch (rme96->pci->device) {
1898         case PCI_DEVICE_ID_RME_DIGI96:
1899         case PCI_DEVICE_ID_RME_DIGI96_8:
1900                 items = 3;
1901                 break;
1902         case PCI_DEVICE_ID_RME_DIGI96_8_PRO:
1903                 items = 4;
1904                 break;
1905         case PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST:
1906                 if (rme96->rev > 4) {
1907                         /* for handling PST case, (INPUT_ANALOG is moved to INPUT_XLR */
1908                         if (ucontrol->value.enumerated.item[0] == RME96_INPUT_ANALOG) {
1909                                 ucontrol->value.enumerated.item[0] = RME96_INPUT_XLR;
1910                         }
1911                         items = 4;
1912                 } else {
1913                         items = 5;
1914                 }
1915                 break;
1916         default:
1917                 snd_BUG();
1918                 break;
1919         }
1920         if (ucontrol->value.enumerated.item[0] >= items) {
1921                 ucontrol->value.enumerated.item[0] = items - 1;
1922         }
1923
1924         spin_unlock_irq(&rme96->lock);
1925         return 0;
1926 }
1927 static int
1928 snd_rme96_put_inputtype_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1929 {
1930         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1931         unsigned int val;
1932         int change, items = 3;
1933
1934         switch (rme96->pci->device) {
1935         case PCI_DEVICE_ID_RME_DIGI96:
1936         case PCI_DEVICE_ID_RME_DIGI96_8:
1937                 items = 3;
1938                 break;
1939         case PCI_DEVICE_ID_RME_DIGI96_8_PRO:
1940                 items = 4;
1941                 break;
1942         case PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST:
1943                 if (rme96->rev > 4) {
1944                         items = 4;
1945                 } else {
1946                         items = 5;
1947                 }
1948                 break;
1949         default:
1950                 snd_BUG();
1951                 break;
1952         }
1953         val = ucontrol->value.enumerated.item[0] % items;
1954
1955         /* special case for PST */
1956         if (rme96->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST && rme96->rev > 4) {
1957                 if (val == RME96_INPUT_XLR) {
1958                         val = RME96_INPUT_ANALOG;
1959                 }
1960         }
1961
1962         spin_lock_irq(&rme96->lock);
1963         change = (int)val != snd_rme96_getinputtype(rme96);
1964         snd_rme96_setinputtype(rme96, val);
1965         spin_unlock_irq(&rme96->lock);
1966         return change;
1967 }
1968
1969 static int
1970 snd_rme96_info_clockmode_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1971 {
1972         static char *texts[3] = { "AutoSync", "Internal", "Word" };
1973
1974         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1975         uinfo->count = 1;
1976         uinfo->value.enumerated.items = 3;
1977         if (uinfo->value.enumerated.item > 2) {
1978                 uinfo->value.enumerated.item = 2;
1979         }
1980         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1981         return 0;
1982 }
1983 static int
1984 snd_rme96_get_clockmode_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1985 {
1986         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1987
1988         spin_lock_irq(&rme96->lock);
1989         ucontrol->value.enumerated.item[0] = snd_rme96_getclockmode(rme96);
1990         spin_unlock_irq(&rme96->lock);
1991         return 0;
1992 }
1993 static int
1994 snd_rme96_put_clockmode_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1995 {
1996         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1997         unsigned int val;
1998         int change;
1999
2000         val = ucontrol->value.enumerated.item[0] % 3;
2001         spin_lock_irq(&rme96->lock);
2002         change = (int)val != snd_rme96_getclockmode(rme96);
2003         snd_rme96_setclockmode(rme96, val);
2004         spin_unlock_irq(&rme96->lock);
2005         return change;
2006 }
2007
2008 static int
2009 snd_rme96_info_attenuation_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2010 {
2011         static char *texts[4] = { "0 dB", "-6 dB", "-12 dB", "-18 dB" };
2012
2013         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2014         uinfo->count = 1;
2015         uinfo->value.enumerated.items = 4;
2016         if (uinfo->value.enumerated.item > 3) {
2017                 uinfo->value.enumerated.item = 3;
2018         }
2019         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
2020         return 0;
2021 }
2022 static int
2023 snd_rme96_get_attenuation_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2024 {
2025         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2026
2027         spin_lock_irq(&rme96->lock);
2028         ucontrol->value.enumerated.item[0] = snd_rme96_getattenuation(rme96);
2029         spin_unlock_irq(&rme96->lock);
2030         return 0;
2031 }
2032 static int
2033 snd_rme96_put_attenuation_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2034 {
2035         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2036         unsigned int val;
2037         int change;
2038
2039         val = ucontrol->value.enumerated.item[0] % 4;
2040         spin_lock_irq(&rme96->lock);
2041
2042         change = (int)val != snd_rme96_getattenuation(rme96);
2043         snd_rme96_setattenuation(rme96, val);
2044         spin_unlock_irq(&rme96->lock);
2045         return change;
2046 }
2047
2048 static int
2049 snd_rme96_info_montracks_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2050 {
2051         static char *texts[4] = { "1+2", "3+4", "5+6", "7+8" };
2052
2053         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2054         uinfo->count = 1;
2055         uinfo->value.enumerated.items = 4;
2056         if (uinfo->value.enumerated.item > 3) {
2057                 uinfo->value.enumerated.item = 3;
2058         }
2059         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
2060         return 0;
2061 }
2062 static int
2063 snd_rme96_get_montracks_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2064 {
2065         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2066
2067         spin_lock_irq(&rme96->lock);
2068         ucontrol->value.enumerated.item[0] = snd_rme96_getmontracks(rme96);
2069         spin_unlock_irq(&rme96->lock);
2070         return 0;
2071 }
2072 static int
2073 snd_rme96_put_montracks_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2074 {
2075         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2076         unsigned int val;
2077         int change;
2078
2079         val = ucontrol->value.enumerated.item[0] % 4;
2080         spin_lock_irq(&rme96->lock);
2081         change = (int)val != snd_rme96_getmontracks(rme96);
2082         snd_rme96_setmontracks(rme96, val);
2083         spin_unlock_irq(&rme96->lock);
2084         return change;
2085 }
2086
2087 static u32 snd_rme96_convert_from_aes(struct snd_aes_iec958 *aes)
2088 {
2089         u32 val = 0;
2090         val |= (aes->status[0] & IEC958_AES0_PROFESSIONAL) ? RME96_WCR_PRO : 0;
2091         val |= (aes->status[0] & IEC958_AES0_NONAUDIO) ? RME96_WCR_DOLBY : 0;
2092         if (val & RME96_WCR_PRO)
2093                 val |= (aes->status[0] & IEC958_AES0_PRO_EMPHASIS_5015) ? RME96_WCR_EMP : 0;
2094         else
2095                 val |= (aes->status[0] & IEC958_AES0_CON_EMPHASIS_5015) ? RME96_WCR_EMP : 0;
2096         return val;
2097 }
2098
2099 static void snd_rme96_convert_to_aes(struct snd_aes_iec958 *aes, u32 val)
2100 {
2101         aes->status[0] = ((val & RME96_WCR_PRO) ? IEC958_AES0_PROFESSIONAL : 0) |
2102                          ((val & RME96_WCR_DOLBY) ? IEC958_AES0_NONAUDIO : 0);
2103         if (val & RME96_WCR_PRO)
2104                 aes->status[0] |= (val & RME96_WCR_EMP) ? IEC958_AES0_PRO_EMPHASIS_5015 : 0;
2105         else
2106                 aes->status[0] |= (val & RME96_WCR_EMP) ? IEC958_AES0_CON_EMPHASIS_5015 : 0;
2107 }
2108
2109 static int snd_rme96_control_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2110 {
2111         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2112         uinfo->count = 1;
2113         return 0;
2114 }
2115
2116 static int snd_rme96_control_spdif_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2117 {
2118         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2119
2120         snd_rme96_convert_to_aes(&ucontrol->value.iec958, rme96->wcreg_spdif);
2121         return 0;
2122 }
2123
2124 static int snd_rme96_control_spdif_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2125 {
2126         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2127         int change;
2128         u32 val;
2129
2130         val = snd_rme96_convert_from_aes(&ucontrol->value.iec958);
2131         spin_lock_irq(&rme96->lock);
2132         change = val != rme96->wcreg_spdif;
2133         rme96->wcreg_spdif = val;
2134         spin_unlock_irq(&rme96->lock);
2135         return change;
2136 }
2137
2138 static int snd_rme96_control_spdif_stream_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2139 {
2140         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2141         uinfo->count = 1;
2142         return 0;
2143 }
2144
2145 static int snd_rme96_control_spdif_stream_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2146 {
2147         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2148
2149         snd_rme96_convert_to_aes(&ucontrol->value.iec958, rme96->wcreg_spdif_stream);
2150         return 0;
2151 }
2152
2153 static int snd_rme96_control_spdif_stream_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2154 {
2155         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2156         int change;
2157         u32 val;
2158
2159         val = snd_rme96_convert_from_aes(&ucontrol->value.iec958);
2160         spin_lock_irq(&rme96->lock);
2161         change = val != rme96->wcreg_spdif_stream;
2162         rme96->wcreg_spdif_stream = val;
2163         rme96->wcreg &= ~(RME96_WCR_PRO | RME96_WCR_DOLBY | RME96_WCR_EMP);
2164         rme96->wcreg |= val;
2165         writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
2166         spin_unlock_irq(&rme96->lock);
2167         return change;
2168 }
2169
2170 static int snd_rme96_control_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2171 {
2172         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2173         uinfo->count = 1;
2174         return 0;
2175 }
2176
2177 static int snd_rme96_control_spdif_mask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2178 {
2179         ucontrol->value.iec958.status[0] = kcontrol->private_value;
2180         return 0;
2181 }
2182
2183 static int
2184 snd_rme96_dac_volume_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2185 {
2186         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2187
2188         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2189         uinfo->count = 2;
2190         uinfo->value.integer.min = 0;
2191         uinfo->value.integer.max = RME96_185X_MAX_OUT(rme96);
2192         return 0;
2193 }
2194
2195 static int
2196 snd_rme96_dac_volume_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *u)
2197 {
2198         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2199
2200         spin_lock_irq(&rme96->lock);
2201         u->value.integer.value[0] = rme96->vol[0];
2202         u->value.integer.value[1] = rme96->vol[1];
2203         spin_unlock_irq(&rme96->lock);
2204
2205         return 0;
2206 }
2207
2208 static int
2209 snd_rme96_dac_volume_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *u)
2210 {
2211         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2212         int change = 0;
2213
2214         if (!RME96_HAS_ANALOG_OUT(rme96)) {
2215                 return -EINVAL;
2216         }
2217         spin_lock_irq(&rme96->lock);
2218         if (u->value.integer.value[0] != rme96->vol[0]) {
2219                 rme96->vol[0] = u->value.integer.value[0];
2220                 change = 1;
2221         }
2222         if (u->value.integer.value[1] != rme96->vol[1]) {
2223                 rme96->vol[1] = u->value.integer.value[1];
2224                 change = 1;
2225         }
2226         if (change) {
2227                 snd_rme96_apply_dac_volume(rme96);
2228         }
2229         spin_unlock_irq(&rme96->lock);
2230
2231         return change;
2232 }
2233
2234 static struct snd_kcontrol_new snd_rme96_controls[] = {
2235 {
2236         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
2237         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
2238         .info =         snd_rme96_control_spdif_info,
2239         .get =          snd_rme96_control_spdif_get,
2240         .put =          snd_rme96_control_spdif_put
2241 },
2242 {
2243         .access =       SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE,
2244         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
2245         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM),
2246         .info =         snd_rme96_control_spdif_stream_info,
2247         .get =          snd_rme96_control_spdif_stream_get,
2248         .put =          snd_rme96_control_spdif_stream_put
2249 },
2250 {
2251         .access =       SNDRV_CTL_ELEM_ACCESS_READ,
2252         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
2253         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
2254         .info =         snd_rme96_control_spdif_mask_info,
2255         .get =          snd_rme96_control_spdif_mask_get,
2256         .private_value = IEC958_AES0_NONAUDIO |
2257                         IEC958_AES0_PROFESSIONAL |
2258                         IEC958_AES0_CON_EMPHASIS
2259 },
2260 {
2261         .access =       SNDRV_CTL_ELEM_ACCESS_READ,
2262         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
2263         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
2264         .info =         snd_rme96_control_spdif_mask_info,
2265         .get =          snd_rme96_control_spdif_mask_get,
2266         .private_value = IEC958_AES0_NONAUDIO |
2267                         IEC958_AES0_PROFESSIONAL |
2268                         IEC958_AES0_PRO_EMPHASIS
2269 },
2270 {
2271         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2272         .name =         "Input Connector",
2273         .info =         snd_rme96_info_inputtype_control,
2274         .get =          snd_rme96_get_inputtype_control,
2275         .put =          snd_rme96_put_inputtype_control
2276 },
2277 {
2278         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2279         .name =         "Loopback Input",
2280         .info =         snd_rme96_info_loopback_control,
2281         .get =          snd_rme96_get_loopback_control,
2282         .put =          snd_rme96_put_loopback_control
2283 },
2284 {
2285         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2286         .name =         "Sample Clock Source",
2287         .info =         snd_rme96_info_clockmode_control,
2288         .get =          snd_rme96_get_clockmode_control,
2289         .put =          snd_rme96_put_clockmode_control
2290 },
2291 {
2292         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2293         .name =         "Monitor Tracks",
2294         .info =         snd_rme96_info_montracks_control,
2295         .get =          snd_rme96_get_montracks_control,
2296         .put =          snd_rme96_put_montracks_control
2297 },
2298 {
2299         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2300         .name =         "Attenuation",
2301         .info =         snd_rme96_info_attenuation_control,
2302         .get =          snd_rme96_get_attenuation_control,
2303         .put =          snd_rme96_put_attenuation_control
2304 },
2305 {
2306         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2307         .name =         "DAC Playback Volume",
2308         .info =         snd_rme96_dac_volume_info,
2309         .get =          snd_rme96_dac_volume_get,
2310         .put =          snd_rme96_dac_volume_put
2311 }
2312 };
2313
2314 static int
2315 snd_rme96_create_switches(struct snd_card *card,
2316                           struct rme96 *rme96)
2317 {
2318         int idx, err;
2319         struct snd_kcontrol *kctl;
2320
2321         for (idx = 0; idx < 7; idx++) {
2322                 if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_rme96_controls[idx], rme96))) < 0)
2323                         return err;
2324                 if (idx == 1)   /* IEC958 (S/PDIF) Stream */
2325                         rme96->spdif_ctl = kctl;
2326         }
2327
2328         if (RME96_HAS_ANALOG_OUT(rme96)) {
2329                 for (idx = 7; idx < 10; idx++)
2330                         if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_rme96_controls[idx], rme96))) < 0)
2331                                 return err;
2332         }
2333
2334         return 0;
2335 }
2336
2337 /*
2338  * Card initialisation
2339  */
2340
2341 static void snd_rme96_card_free(struct snd_card *card)
2342 {
2343         snd_rme96_free(card->private_data);
2344 }
2345
2346 static int __devinit
2347 snd_rme96_probe(struct pci_dev *pci,
2348                 const struct pci_device_id *pci_id)
2349 {
2350         static int dev;
2351         struct rme96 *rme96;
2352         struct snd_card *card;
2353         int err;
2354         u8 val;
2355
2356         if (dev >= SNDRV_CARDS) {
2357                 return -ENODEV;
2358         }
2359         if (!enable[dev]) {
2360                 dev++;
2361                 return -ENOENT;
2362         }
2363         if ((card = snd_card_new(index[dev], id[dev], THIS_MODULE,
2364                                  sizeof(struct rme96))) == NULL)
2365                 return -ENOMEM;
2366         card->private_free = snd_rme96_card_free;
2367         rme96 = (struct rme96 *)card->private_data;
2368         rme96->card = card;
2369         rme96->pci = pci;
2370         snd_card_set_dev(card, &pci->dev);
2371         if ((err = snd_rme96_create(rme96)) < 0) {
2372                 snd_card_free(card);
2373                 return err;
2374         }
2375
2376         strcpy(card->driver, "Digi96");
2377         switch (rme96->pci->device) {
2378         case PCI_DEVICE_ID_RME_DIGI96:
2379                 strcpy(card->shortname, "RME Digi96");
2380                 break;
2381         case PCI_DEVICE_ID_RME_DIGI96_8:
2382                 strcpy(card->shortname, "RME Digi96/8");
2383                 break;
2384         case PCI_DEVICE_ID_RME_DIGI96_8_PRO:
2385                 strcpy(card->shortname, "RME Digi96/8 PRO");
2386                 break;
2387         case PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST:
2388                 pci_read_config_byte(rme96->pci, 8, &val);
2389                 if (val < 5) {
2390                         strcpy(card->shortname, "RME Digi96/8 PAD");
2391                 } else {
2392                         strcpy(card->shortname, "RME Digi96/8 PST");
2393                 }
2394                 break;
2395         }
2396         sprintf(card->longname, "%s at 0x%lx, irq %d", card->shortname,
2397                 rme96->port, rme96->irq);
2398
2399         if ((err = snd_card_register(card)) < 0) {
2400                 snd_card_free(card);
2401                 return err;
2402         }
2403         pci_set_drvdata(pci, card);
2404         dev++;
2405         return 0;
2406 }
2407
2408 static void __devexit snd_rme96_remove(struct pci_dev *pci)
2409 {
2410         snd_card_free(pci_get_drvdata(pci));
2411         pci_set_drvdata(pci, NULL);
2412 }
2413
2414 static struct pci_driver driver = {
2415         .name = "RME Digi96",
2416         .id_table = snd_rme96_ids,
2417         .probe = snd_rme96_probe,
2418         .remove = __devexit_p(snd_rme96_remove),
2419 };
2420
2421 static int __init alsa_card_rme96_init(void)
2422 {
2423         return pci_register_driver(&driver);
2424 }
2425
2426 static void __exit alsa_card_rme96_exit(void)
2427 {
2428         pci_unregister_driver(&driver);
2429 }
2430
2431 module_init(alsa_card_rme96_init)
2432 module_exit(alsa_card_rme96_exit)