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[] __devinitdata = {
 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 capabilities (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 capabilities (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 capabilities (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 capabilities (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 void
1155 rme96_set_buffer_size_constraint(struct rme96 *rme96,
1156                                  struct snd_pcm_runtime *runtime)
1157 {
1158         unsigned int size;
1159
1160         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
1161                                      RME96_BUFFER_SIZE, RME96_BUFFER_SIZE);
1162         if ((size = rme96->playback_periodsize) != 0 ||
1163             (size = rme96->capture_periodsize) != 0)
1164                 snd_pcm_hw_constraint_minmax(runtime,
1165                                              SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
1166                                              size, size);
1167         else
1168                 snd_pcm_hw_constraint_list(runtime, 0,
1169                                            SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
1170                                            &hw_constraints_period_bytes);
1171 }
1172
1173 static int
1174 snd_rme96_playback_spdif_open(struct snd_pcm_substream *substream)
1175 {
1176         int rate, dummy;
1177         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1178         struct snd_pcm_runtime *runtime = substream->runtime;
1179
1180         snd_pcm_set_sync(substream);
1181
1182         spin_lock_irq(&rme96->lock);
1183         if (rme96->playback_substream != NULL) {
1184                 spin_unlock_irq(&rme96->lock);
1185                 return -EBUSY;
1186         }
1187         rme96->wcreg &= ~RME96_WCR_ADAT;
1188         writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1189         rme96->playback_substream = substream;
1190         spin_unlock_irq(&rme96->lock);
1191
1192         runtime->hw = snd_rme96_playback_spdif_info;
1193         if (!(rme96->wcreg & RME96_WCR_MASTER) &&
1194             snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
1195             (rate = snd_rme96_capture_getrate(rme96, &dummy)) > 0)
1196         {
1197                 /* slave clock */
1198                 runtime->hw.rates = snd_rme96_ratecode(rate);
1199                 runtime->hw.rate_min = rate;
1200                 runtime->hw.rate_max = rate;
1201         }
1202         rme96_set_buffer_size_constraint(rme96, runtime);
1203
1204         rme96->wcreg_spdif_stream = rme96->wcreg_spdif;
1205         rme96->spdif_ctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1206         snd_ctl_notify(rme96->card, SNDRV_CTL_EVENT_MASK_VALUE |
1207                        SNDRV_CTL_EVENT_MASK_INFO, &rme96->spdif_ctl->id);
1208         return 0;
1209 }
1210
1211 static int
1212 snd_rme96_capture_spdif_open(struct snd_pcm_substream *substream)
1213 {
1214         int isadat, rate;
1215         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1216         struct snd_pcm_runtime *runtime = substream->runtime;
1217
1218         snd_pcm_set_sync(substream);
1219
1220         runtime->hw = snd_rme96_capture_spdif_info;
1221         if (snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
1222             (rate = snd_rme96_capture_getrate(rme96, &isadat)) > 0)
1223         {
1224                 if (isadat) {
1225                         return -EIO;
1226                 }
1227                 runtime->hw.rates = snd_rme96_ratecode(rate);
1228                 runtime->hw.rate_min = rate;
1229                 runtime->hw.rate_max = rate;
1230         }
1231
1232         spin_lock_irq(&rme96->lock);
1233         if (rme96->capture_substream != NULL) {
1234                 spin_unlock_irq(&rme96->lock);
1235                 return -EBUSY;
1236         }
1237         rme96->capture_substream = substream;
1238         spin_unlock_irq(&rme96->lock);
1239
1240         rme96_set_buffer_size_constraint(rme96, runtime);
1241         return 0;
1242 }
1243
1244 static int
1245 snd_rme96_playback_adat_open(struct snd_pcm_substream *substream)
1246 {
1247         int rate, dummy;
1248         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1249         struct snd_pcm_runtime *runtime = substream->runtime;
1250
1251         snd_pcm_set_sync(substream);
1252
1253         spin_lock_irq(&rme96->lock);
1254         if (rme96->playback_substream != NULL) {
1255                 spin_unlock_irq(&rme96->lock);
1256                 return -EBUSY;
1257         }
1258         rme96->wcreg |= RME96_WCR_ADAT;
1259         writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1260         rme96->playback_substream = substream;
1261         spin_unlock_irq(&rme96->lock);
1262
1263         runtime->hw = snd_rme96_playback_adat_info;
1264         if (!(rme96->wcreg & RME96_WCR_MASTER) &&
1265             snd_rme96_getinputtype(rme96) != RME96_INPUT_ANALOG &&
1266             (rate = snd_rme96_capture_getrate(rme96, &dummy)) > 0)
1267         {
1268                 /* slave clock */
1269                 runtime->hw.rates = snd_rme96_ratecode(rate);
1270                 runtime->hw.rate_min = rate;
1271                 runtime->hw.rate_max = rate;
1272         }
1273         rme96_set_buffer_size_constraint(rme96, runtime);
1274         return 0;
1275 }
1276
1277 static int
1278 snd_rme96_capture_adat_open(struct snd_pcm_substream *substream)
1279 {
1280         int isadat, rate;
1281         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1282         struct snd_pcm_runtime *runtime = substream->runtime;
1283
1284         snd_pcm_set_sync(substream);
1285
1286         runtime->hw = snd_rme96_capture_adat_info;
1287         if (snd_rme96_getinputtype(rme96) == RME96_INPUT_ANALOG) {
1288                 /* makes no sense to use analog input. Note that analog
1289                    expension cards AEB4/8-I are RME96_INPUT_INTERNAL */
1290                 return -EIO;
1291         }
1292         if ((rate = snd_rme96_capture_getrate(rme96, &isadat)) > 0) {
1293                 if (!isadat) {
1294                         return -EIO;
1295                 }
1296                 runtime->hw.rates = snd_rme96_ratecode(rate);
1297                 runtime->hw.rate_min = rate;
1298                 runtime->hw.rate_max = rate;
1299         }
1300
1301         spin_lock_irq(&rme96->lock);
1302         if (rme96->capture_substream != NULL) {
1303                 spin_unlock_irq(&rme96->lock);
1304                 return -EBUSY;
1305         }
1306         rme96->capture_substream = substream;
1307         spin_unlock_irq(&rme96->lock);
1308
1309         rme96_set_buffer_size_constraint(rme96, runtime);
1310         return 0;
1311 }
1312
1313 static int
1314 snd_rme96_playback_close(struct snd_pcm_substream *substream)
1315 {
1316         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1317         int spdif = 0;
1318
1319         spin_lock_irq(&rme96->lock);
1320         if (RME96_ISPLAYING(rme96)) {
1321                 snd_rme96_playback_stop(rme96);
1322         }
1323         rme96->playback_substream = NULL;
1324         rme96->playback_periodsize = 0;
1325         spdif = (rme96->wcreg & RME96_WCR_ADAT) == 0;
1326         spin_unlock_irq(&rme96->lock);
1327         if (spdif) {
1328                 rme96->spdif_ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1329                 snd_ctl_notify(rme96->card, SNDRV_CTL_EVENT_MASK_VALUE |
1330                                SNDRV_CTL_EVENT_MASK_INFO, &rme96->spdif_ctl->id);
1331         }
1332         return 0;
1333 }
1334
1335 static int
1336 snd_rme96_capture_close(struct snd_pcm_substream *substream)
1337 {
1338         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1339
1340         spin_lock_irq(&rme96->lock);
1341         if (RME96_ISRECORDING(rme96)) {
1342                 snd_rme96_capture_stop(rme96);
1343         }
1344         rme96->capture_substream = NULL;
1345         rme96->capture_periodsize = 0;
1346         spin_unlock_irq(&rme96->lock);
1347         return 0;
1348 }
1349
1350 static int
1351 snd_rme96_playback_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_ISPLAYING(rme96)) {
1357                 snd_rme96_playback_stop(rme96);
1358         }
1359         writel(0, rme96->iobase + RME96_IO_RESET_PLAY_POS);
1360         spin_unlock_irq(&rme96->lock);
1361         return 0;
1362 }
1363
1364 static int
1365 snd_rme96_capture_prepare(struct snd_pcm_substream *substream)
1366 {
1367         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1368
1369         spin_lock_irq(&rme96->lock);
1370         if (RME96_ISRECORDING(rme96)) {
1371                 snd_rme96_capture_stop(rme96);
1372         }
1373         writel(0, rme96->iobase + RME96_IO_RESET_REC_POS);
1374         spin_unlock_irq(&rme96->lock);
1375         return 0;
1376 }
1377
1378 static int
1379 snd_rme96_playback_trigger(struct snd_pcm_substream *substream,
1380                            int cmd)
1381 {
1382         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1383
1384         switch (cmd) {
1385         case SNDRV_PCM_TRIGGER_START:
1386                 if (!RME96_ISPLAYING(rme96)) {
1387                         if (substream != rme96->playback_substream) {
1388                                 return -EBUSY;
1389                         }
1390                         snd_rme96_playback_start(rme96, 0);
1391                 }
1392                 break;
1393
1394         case SNDRV_PCM_TRIGGER_STOP:
1395                 if (RME96_ISPLAYING(rme96)) {
1396                         if (substream != rme96->playback_substream) {
1397                                 return -EBUSY;
1398                         }
1399                         snd_rme96_playback_stop(rme96);
1400                 }
1401                 break;
1402
1403         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1404                 if (RME96_ISPLAYING(rme96)) {
1405                         snd_rme96_playback_stop(rme96);
1406                 }
1407                 break;
1408
1409         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1410                 if (!RME96_ISPLAYING(rme96)) {
1411                         snd_rme96_playback_start(rme96, 1);
1412                 }
1413                 break;
1414
1415         default:
1416                 return -EINVAL;
1417         }
1418         return 0;
1419 }
1420
1421 static int
1422 snd_rme96_capture_trigger(struct snd_pcm_substream *substream,
1423                           int cmd)
1424 {
1425         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1426
1427         switch (cmd) {
1428         case SNDRV_PCM_TRIGGER_START:
1429                 if (!RME96_ISRECORDING(rme96)) {
1430                         if (substream != rme96->capture_substream) {
1431                                 return -EBUSY;
1432                         }
1433                         snd_rme96_capture_start(rme96, 0);
1434                 }
1435                 break;
1436
1437         case SNDRV_PCM_TRIGGER_STOP:
1438                 if (RME96_ISRECORDING(rme96)) {
1439                         if (substream != rme96->capture_substream) {
1440                                 return -EBUSY;
1441                         }
1442                         snd_rme96_capture_stop(rme96);
1443                 }
1444                 break;
1445
1446         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1447                 if (RME96_ISRECORDING(rme96)) {
1448                         snd_rme96_capture_stop(rme96);
1449                 }
1450                 break;
1451
1452         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1453                 if (!RME96_ISRECORDING(rme96)) {
1454                         snd_rme96_capture_start(rme96, 1);
1455                 }
1456                 break;
1457
1458         default:
1459                 return -EINVAL;
1460         }
1461
1462         return 0;
1463 }
1464
1465 static snd_pcm_uframes_t
1466 snd_rme96_playback_pointer(struct snd_pcm_substream *substream)
1467 {
1468         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1469         return snd_rme96_playback_ptr(rme96);
1470 }
1471
1472 static snd_pcm_uframes_t
1473 snd_rme96_capture_pointer(struct snd_pcm_substream *substream)
1474 {
1475         struct rme96 *rme96 = snd_pcm_substream_chip(substream);
1476         return snd_rme96_capture_ptr(rme96);
1477 }
1478
1479 static struct snd_pcm_ops snd_rme96_playback_spdif_ops = {
1480         .open =         snd_rme96_playback_spdif_open,
1481         .close =        snd_rme96_playback_close,
1482         .ioctl =        snd_pcm_lib_ioctl,
1483         .hw_params =    snd_rme96_playback_hw_params,
1484         .prepare =      snd_rme96_playback_prepare,
1485         .trigger =      snd_rme96_playback_trigger,
1486         .pointer =      snd_rme96_playback_pointer,
1487         .copy =         snd_rme96_playback_copy,
1488         .silence =      snd_rme96_playback_silence,
1489         .mmap =         snd_pcm_lib_mmap_iomem,
1490 };
1491
1492 static struct snd_pcm_ops snd_rme96_capture_spdif_ops = {
1493         .open =         snd_rme96_capture_spdif_open,
1494         .close =        snd_rme96_capture_close,
1495         .ioctl =        snd_pcm_lib_ioctl,
1496         .hw_params =    snd_rme96_capture_hw_params,
1497         .prepare =      snd_rme96_capture_prepare,
1498         .trigger =      snd_rme96_capture_trigger,
1499         .pointer =      snd_rme96_capture_pointer,
1500         .copy =         snd_rme96_capture_copy,
1501         .mmap =         snd_pcm_lib_mmap_iomem,
1502 };
1503
1504 static struct snd_pcm_ops snd_rme96_playback_adat_ops = {
1505         .open =         snd_rme96_playback_adat_open,
1506         .close =        snd_rme96_playback_close,
1507         .ioctl =        snd_pcm_lib_ioctl,
1508         .hw_params =    snd_rme96_playback_hw_params,
1509         .prepare =      snd_rme96_playback_prepare,
1510         .trigger =      snd_rme96_playback_trigger,
1511         .pointer =      snd_rme96_playback_pointer,
1512         .copy =         snd_rme96_playback_copy,
1513         .silence =      snd_rme96_playback_silence,
1514         .mmap =         snd_pcm_lib_mmap_iomem,
1515 };
1516
1517 static struct snd_pcm_ops snd_rme96_capture_adat_ops = {
1518         .open =         snd_rme96_capture_adat_open,
1519         .close =        snd_rme96_capture_close,
1520         .ioctl =        snd_pcm_lib_ioctl,
1521         .hw_params =    snd_rme96_capture_hw_params,
1522         .prepare =      snd_rme96_capture_prepare,
1523         .trigger =      snd_rme96_capture_trigger,
1524         .pointer =      snd_rme96_capture_pointer,
1525         .copy =         snd_rme96_capture_copy,
1526         .mmap =         snd_pcm_lib_mmap_iomem,
1527 };
1528
1529 static void
1530 snd_rme96_free(void *private_data)
1531 {
1532         struct rme96 *rme96 = (struct rme96 *)private_data;
1533
1534         if (rme96 == NULL) {
1535                 return;
1536         }
1537         if (rme96->irq >= 0) {
1538                 snd_rme96_playback_stop(rme96);
1539                 snd_rme96_capture_stop(rme96);
1540                 rme96->areg &= ~RME96_AR_DAC_EN;
1541                 writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
1542                 free_irq(rme96->irq, (void *)rme96);
1543                 rme96->irq = -1;
1544         }
1545         if (rme96->iobase) {
1546                 iounmap(rme96->iobase);
1547                 rme96->iobase = NULL;
1548         }
1549         if (rme96->port) {
1550                 pci_release_regions(rme96->pci);
1551                 rme96->port = 0;
1552         }
1553         pci_disable_device(rme96->pci);
1554 }
1555
1556 static void
1557 snd_rme96_free_spdif_pcm(struct snd_pcm *pcm)
1558 {
1559         struct rme96 *rme96 = (struct rme96 *) pcm->private_data;
1560         rme96->spdif_pcm = NULL;
1561 }
1562
1563 static void
1564 snd_rme96_free_adat_pcm(struct snd_pcm *pcm)
1565 {
1566         struct rme96 *rme96 = (struct rme96 *) pcm->private_data;
1567         rme96->adat_pcm = NULL;
1568 }
1569
1570 static int __devinit
1571 snd_rme96_create(struct rme96 *rme96)
1572 {
1573         struct pci_dev *pci = rme96->pci;
1574         int err;
1575
1576         rme96->irq = -1;
1577         spin_lock_init(&rme96->lock);
1578
1579         if ((err = pci_enable_device(pci)) < 0)
1580                 return err;
1581
1582         if ((err = pci_request_regions(pci, "RME96")) < 0)
1583                 return err;
1584         rme96->port = pci_resource_start(rme96->pci, 0);
1585
1586         if ((rme96->iobase = ioremap_nocache(rme96->port, RME96_IO_SIZE)) == 0) {
1587                 snd_printk(KERN_ERR "unable to remap memory region 0x%lx-0x%lx\n", rme96->port, rme96->port + RME96_IO_SIZE - 1);
1588                 return -ENOMEM;
1589         }
1590
1591         if (request_irq(pci->irq, snd_rme96_interrupt, IRQF_DISABLED|IRQF_SHARED, "RME96", (void *)rme96)) {
1592                 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
1593                 return -EBUSY;
1594         }
1595         rme96->irq = pci->irq;
1596
1597         /* read the card's revision number */
1598         pci_read_config_byte(pci, 8, &rme96->rev);
1599
1600         /* set up ALSA pcm device for S/PDIF */
1601         if ((err = snd_pcm_new(rme96->card, "Digi96 IEC958", 0,
1602                                1, 1, &rme96->spdif_pcm)) < 0)
1603         {
1604                 return err;
1605         }
1606         rme96->spdif_pcm->private_data = rme96;
1607         rme96->spdif_pcm->private_free = snd_rme96_free_spdif_pcm;
1608         strcpy(rme96->spdif_pcm->name, "Digi96 IEC958");
1609         snd_pcm_set_ops(rme96->spdif_pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_rme96_playback_spdif_ops);
1610         snd_pcm_set_ops(rme96->spdif_pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_rme96_capture_spdif_ops);
1611
1612         rme96->spdif_pcm->info_flags = 0;
1613
1614         /* set up ALSA pcm device for ADAT */
1615         if (pci->device == PCI_DEVICE_ID_RME_DIGI96) {
1616                 /* ADAT is not available on the base model */
1617                 rme96->adat_pcm = NULL;
1618         } else {
1619                 if ((err = snd_pcm_new(rme96->card, "Digi96 ADAT", 1,
1620                                        1, 1, &rme96->adat_pcm)) < 0)
1621                 {
1622                         return err;
1623                 }
1624                 rme96->adat_pcm->private_data = rme96;
1625                 rme96->adat_pcm->private_free = snd_rme96_free_adat_pcm;
1626                 strcpy(rme96->adat_pcm->name, "Digi96 ADAT");
1627                 snd_pcm_set_ops(rme96->adat_pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_rme96_playback_adat_ops);
1628                 snd_pcm_set_ops(rme96->adat_pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_rme96_capture_adat_ops);
1629
1630                 rme96->adat_pcm->info_flags = 0;
1631         }
1632
1633         rme96->playback_periodsize = 0;
1634         rme96->capture_periodsize = 0;
1635
1636         /* make sure playback/capture is stopped, if by some reason active */
1637         snd_rme96_playback_stop(rme96);
1638         snd_rme96_capture_stop(rme96);
1639
1640         /* set default values in registers */
1641         rme96->wcreg =
1642                 RME96_WCR_FREQ_1 | /* set 44.1 kHz playback */
1643                 RME96_WCR_SEL |    /* normal playback */
1644                 RME96_WCR_MASTER | /* set to master clock mode */
1645                 RME96_WCR_INP_0;   /* set coaxial input */
1646
1647         rme96->areg = RME96_AR_FREQPAD_1; /* set 44.1 kHz analog capture */
1648
1649         writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1650         writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
1651
1652         /* reset the ADC */
1653         writel(rme96->areg | RME96_AR_PD2,
1654                rme96->iobase + RME96_IO_ADDITIONAL_REG);
1655         writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
1656
1657         /* reset and enable the DAC (order is important). */
1658         snd_rme96_reset_dac(rme96);
1659         rme96->areg |= RME96_AR_DAC_EN;
1660         writel(rme96->areg, rme96->iobase + RME96_IO_ADDITIONAL_REG);
1661
1662         /* reset playback and record buffer pointers */
1663         writel(0, rme96->iobase + RME96_IO_RESET_PLAY_POS);
1664         writel(0, rme96->iobase + RME96_IO_RESET_REC_POS);
1665
1666         /* reset volume */
1667         rme96->vol[0] = rme96->vol[1] = 0;
1668         if (RME96_HAS_ANALOG_OUT(rme96)) {
1669                 snd_rme96_apply_dac_volume(rme96);
1670         }
1671
1672         /* init switch interface */
1673         if ((err = snd_rme96_create_switches(rme96->card, rme96)) < 0) {
1674                 return err;
1675         }
1676
1677         /* init proc interface */
1678         snd_rme96_proc_init(rme96);
1679
1680         return 0;
1681 }
1682
1683 /*
1684  * proc interface
1685  */
1686
1687 static void
1688 snd_rme96_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
1689 {
1690         int n;
1691         struct rme96 *rme96 = (struct rme96 *)entry->private_data;
1692
1693         rme96->rcreg = readl(rme96->iobase + RME96_IO_CONTROL_REGISTER);
1694
1695         snd_iprintf(buffer, rme96->card->longname);
1696         snd_iprintf(buffer, " (index #%d)\n", rme96->card->number + 1);
1697
1698         snd_iprintf(buffer, "\nGeneral settings\n");
1699         if (rme96->wcreg & RME96_WCR_IDIS) {
1700                 snd_iprintf(buffer, "  period size: N/A (interrupts "
1701                             "disabled)\n");
1702         } else if (rme96->wcreg & RME96_WCR_ISEL) {
1703                 snd_iprintf(buffer, "  period size: 2048 bytes\n");
1704         } else {
1705                 snd_iprintf(buffer, "  period size: 8192 bytes\n");
1706         }
1707         snd_iprintf(buffer, "\nInput settings\n");
1708         switch (snd_rme96_getinputtype(rme96)) {
1709         case RME96_INPUT_OPTICAL:
1710                 snd_iprintf(buffer, "  input: optical");
1711                 break;
1712         case RME96_INPUT_COAXIAL:
1713                 snd_iprintf(buffer, "  input: coaxial");
1714                 break;
1715         case RME96_INPUT_INTERNAL:
1716                 snd_iprintf(buffer, "  input: internal");
1717                 break;
1718         case RME96_INPUT_XLR:
1719                 snd_iprintf(buffer, "  input: XLR");
1720                 break;
1721         case RME96_INPUT_ANALOG:
1722                 snd_iprintf(buffer, "  input: analog");
1723                 break;
1724         }
1725         if (snd_rme96_capture_getrate(rme96, &n) < 0) {
1726                 snd_iprintf(buffer, "\n  sample rate: no valid signal\n");
1727         } else {
1728                 if (n) {
1729                         snd_iprintf(buffer, " (8 channels)\n");
1730                 } else {
1731                         snd_iprintf(buffer, " (2 channels)\n");
1732                 }
1733                 snd_iprintf(buffer, "  sample rate: %d Hz\n",
1734                             snd_rme96_capture_getrate(rme96, &n));
1735         }
1736         if (rme96->wcreg & RME96_WCR_MODE24_2) {
1737                 snd_iprintf(buffer, "  sample format: 24 bit\n");
1738         } else {
1739                 snd_iprintf(buffer, "  sample format: 16 bit\n");
1740         }
1741
1742         snd_iprintf(buffer, "\nOutput settings\n");
1743         if (rme96->wcreg & RME96_WCR_SEL) {
1744                 snd_iprintf(buffer, "  output signal: normal playback\n");
1745         } else {
1746                 snd_iprintf(buffer, "  output signal: same as input\n");
1747         }
1748         snd_iprintf(buffer, "  sample rate: %d Hz\n",
1749                     snd_rme96_playback_getrate(rme96));
1750         if (rme96->wcreg & RME96_WCR_MODE24) {
1751                 snd_iprintf(buffer, "  sample format: 24 bit\n");
1752         } else {
1753                 snd_iprintf(buffer, "  sample format: 16 bit\n");
1754         }
1755         if (rme96->areg & RME96_AR_WSEL) {
1756                 snd_iprintf(buffer, "  sample clock source: word clock\n");
1757         } else if (rme96->wcreg & RME96_WCR_MASTER) {
1758                 snd_iprintf(buffer, "  sample clock source: internal\n");
1759         } else if (snd_rme96_getinputtype(rme96) == RME96_INPUT_ANALOG) {
1760                 snd_iprintf(buffer, "  sample clock source: autosync (internal anyway due to analog input setting)\n");
1761         } else if (snd_rme96_capture_getrate(rme96, &n) < 0) {
1762                 snd_iprintf(buffer, "  sample clock source: autosync (internal anyway due to no valid signal)\n");
1763         } else {
1764                 snd_iprintf(buffer, "  sample clock source: autosync\n");
1765         }
1766         if (rme96->wcreg & RME96_WCR_PRO) {
1767                 snd_iprintf(buffer, "  format: AES/EBU (professional)\n");
1768         } else {
1769                 snd_iprintf(buffer, "  format: IEC958 (consumer)\n");
1770         }
1771         if (rme96->wcreg & RME96_WCR_EMP) {
1772                 snd_iprintf(buffer, "  emphasis: on\n");
1773         } else {
1774                 snd_iprintf(buffer, "  emphasis: off\n");
1775         }
1776         if (rme96->wcreg & RME96_WCR_DOLBY) {
1777                 snd_iprintf(buffer, "  non-audio (dolby): on\n");
1778         } else {
1779                 snd_iprintf(buffer, "  non-audio (dolby): off\n");
1780         }
1781         if (RME96_HAS_ANALOG_IN(rme96)) {
1782                 snd_iprintf(buffer, "\nAnalog output settings\n");
1783                 switch (snd_rme96_getmontracks(rme96)) {
1784                 case RME96_MONITOR_TRACKS_1_2:
1785                         snd_iprintf(buffer, "  monitored ADAT tracks: 1+2\n");
1786                         break;
1787                 case RME96_MONITOR_TRACKS_3_4:
1788                         snd_iprintf(buffer, "  monitored ADAT tracks: 3+4\n");
1789                         break;
1790                 case RME96_MONITOR_TRACKS_5_6:
1791                         snd_iprintf(buffer, "  monitored ADAT tracks: 5+6\n");
1792                         break;
1793                 case RME96_MONITOR_TRACKS_7_8:
1794                         snd_iprintf(buffer, "  monitored ADAT tracks: 7+8\n");
1795                         break;
1796                 }
1797                 switch (snd_rme96_getattenuation(rme96)) {
1798                 case RME96_ATTENUATION_0:
1799                         snd_iprintf(buffer, "  attenuation: 0 dB\n");
1800                         break;
1801                 case RME96_ATTENUATION_6:
1802                         snd_iprintf(buffer, "  attenuation: -6 dB\n");
1803                         break;
1804                 case RME96_ATTENUATION_12:
1805                         snd_iprintf(buffer, "  attenuation: -12 dB\n");
1806                         break;
1807                 case RME96_ATTENUATION_18:
1808                         snd_iprintf(buffer, "  attenuation: -18 dB\n");
1809                         break;
1810                 }
1811                 snd_iprintf(buffer, "  volume left: %u\n", rme96->vol[0]);
1812                 snd_iprintf(buffer, "  volume right: %u\n", rme96->vol[1]);
1813         }
1814 }
1815
1816 static void __devinit
1817 snd_rme96_proc_init(struct rme96 *rme96)
1818 {
1819         struct snd_info_entry *entry;
1820
1821         if (! snd_card_proc_new(rme96->card, "rme96", &entry))
1822                 snd_info_set_text_ops(entry, rme96, snd_rme96_proc_read);
1823 }
1824
1825 /*
1826  * control interface
1827  */
1828
1829 static int
1830 snd_rme96_info_loopback_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1831 {
1832         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1833         uinfo->count = 1;
1834         uinfo->value.integer.min = 0;
1835         uinfo->value.integer.max = 1;
1836         return 0;
1837 }
1838 static int
1839 snd_rme96_get_loopback_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1840 {
1841         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1842
1843         spin_lock_irq(&rme96->lock);
1844         ucontrol->value.integer.value[0] = rme96->wcreg & RME96_WCR_SEL ? 0 : 1;
1845         spin_unlock_irq(&rme96->lock);
1846         return 0;
1847 }
1848 static int
1849 snd_rme96_put_loopback_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1850 {
1851         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1852         unsigned int val;
1853         int change;
1854
1855         val = ucontrol->value.integer.value[0] ? 0 : RME96_WCR_SEL;
1856         spin_lock_irq(&rme96->lock);
1857         val = (rme96->wcreg & ~RME96_WCR_SEL) | val;
1858         change = val != rme96->wcreg;
1859         rme96->wcreg = val;
1860         writel(val, rme96->iobase + RME96_IO_CONTROL_REGISTER);
1861         spin_unlock_irq(&rme96->lock);
1862         return change;
1863 }
1864
1865 static int
1866 snd_rme96_info_inputtype_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1867 {
1868         static char *_texts[5] = { "Optical", "Coaxial", "Internal", "XLR", "Analog" };
1869         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1870         char *texts[5] = { _texts[0], _texts[1], _texts[2], _texts[3], _texts[4] };
1871
1872         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1873         uinfo->count = 1;
1874         switch (rme96->pci->device) {
1875         case PCI_DEVICE_ID_RME_DIGI96:
1876         case PCI_DEVICE_ID_RME_DIGI96_8:
1877                 uinfo->value.enumerated.items = 3;
1878                 break;
1879         case PCI_DEVICE_ID_RME_DIGI96_8_PRO:
1880                 uinfo->value.enumerated.items = 4;
1881                 break;
1882         case PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST:
1883                 if (rme96->rev > 4) {
1884                         /* PST */
1885                         uinfo->value.enumerated.items = 4;
1886                         texts[3] = _texts[4]; /* Analog instead of XLR */
1887                 } else {
1888                         /* PAD */
1889                         uinfo->value.enumerated.items = 5;
1890                 }
1891                 break;
1892         default:
1893                 snd_BUG();
1894                 break;
1895         }
1896         if (uinfo->value.enumerated.item > uinfo->value.enumerated.items - 1) {
1897                 uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
1898         }
1899         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1900         return 0;
1901 }
1902 static int
1903 snd_rme96_get_inputtype_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1904 {
1905         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1906         unsigned int items = 3;
1907
1908         spin_lock_irq(&rme96->lock);
1909         ucontrol->value.enumerated.item[0] = snd_rme96_getinputtype(rme96);
1910
1911         switch (rme96->pci->device) {
1912         case PCI_DEVICE_ID_RME_DIGI96:
1913         case PCI_DEVICE_ID_RME_DIGI96_8:
1914                 items = 3;
1915                 break;
1916         case PCI_DEVICE_ID_RME_DIGI96_8_PRO:
1917                 items = 4;
1918                 break;
1919         case PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST:
1920                 if (rme96->rev > 4) {
1921                         /* for handling PST case, (INPUT_ANALOG is moved to INPUT_XLR */
1922                         if (ucontrol->value.enumerated.item[0] == RME96_INPUT_ANALOG) {
1923                                 ucontrol->value.enumerated.item[0] = RME96_INPUT_XLR;
1924                         }
1925                         items = 4;
1926                 } else {
1927                         items = 5;
1928                 }
1929                 break;
1930         default:
1931                 snd_BUG();
1932                 break;
1933         }
1934         if (ucontrol->value.enumerated.item[0] >= items) {
1935                 ucontrol->value.enumerated.item[0] = items - 1;
1936         }
1937
1938         spin_unlock_irq(&rme96->lock);
1939         return 0;
1940 }
1941 static int
1942 snd_rme96_put_inputtype_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1943 {
1944         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
1945         unsigned int val;
1946         int change, items = 3;
1947
1948         switch (rme96->pci->device) {
1949         case PCI_DEVICE_ID_RME_DIGI96:
1950         case PCI_DEVICE_ID_RME_DIGI96_8:
1951                 items = 3;
1952                 break;
1953         case PCI_DEVICE_ID_RME_DIGI96_8_PRO:
1954                 items = 4;
1955                 break;
1956         case PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST:
1957                 if (rme96->rev > 4) {
1958                         items = 4;
1959                 } else {
1960                         items = 5;
1961                 }
1962                 break;
1963         default:
1964                 snd_BUG();
1965                 break;
1966         }
1967         val = ucontrol->value.enumerated.item[0] % items;
1968
1969         /* special case for PST */
1970         if (rme96->pci->device == PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST && rme96->rev > 4) {
1971                 if (val == RME96_INPUT_XLR) {
1972                         val = RME96_INPUT_ANALOG;
1973                 }
1974         }
1975
1976         spin_lock_irq(&rme96->lock);
1977         change = (int)val != snd_rme96_getinputtype(rme96);
1978         snd_rme96_setinputtype(rme96, val);
1979         spin_unlock_irq(&rme96->lock);
1980         return change;
1981 }
1982
1983 static int
1984 snd_rme96_info_clockmode_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1985 {
1986         static char *texts[3] = { "AutoSync", "Internal", "Word" };
1987
1988         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1989         uinfo->count = 1;
1990         uinfo->value.enumerated.items = 3;
1991         if (uinfo->value.enumerated.item > 2) {
1992                 uinfo->value.enumerated.item = 2;
1993         }
1994         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1995         return 0;
1996 }
1997 static int
1998 snd_rme96_get_clockmode_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1999 {
2000         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2001
2002         spin_lock_irq(&rme96->lock);
2003         ucontrol->value.enumerated.item[0] = snd_rme96_getclockmode(rme96);
2004         spin_unlock_irq(&rme96->lock);
2005         return 0;
2006 }
2007 static int
2008 snd_rme96_put_clockmode_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2009 {
2010         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2011         unsigned int val;
2012         int change;
2013
2014         val = ucontrol->value.enumerated.item[0] % 3;
2015         spin_lock_irq(&rme96->lock);
2016         change = (int)val != snd_rme96_getclockmode(rme96);
2017         snd_rme96_setclockmode(rme96, val);
2018         spin_unlock_irq(&rme96->lock);
2019         return change;
2020 }
2021
2022 static int
2023 snd_rme96_info_attenuation_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2024 {
2025         static char *texts[4] = { "0 dB", "-6 dB", "-12 dB", "-18 dB" };
2026
2027         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2028         uinfo->count = 1;
2029         uinfo->value.enumerated.items = 4;
2030         if (uinfo->value.enumerated.item > 3) {
2031                 uinfo->value.enumerated.item = 3;
2032         }
2033         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
2034         return 0;
2035 }
2036 static int
2037 snd_rme96_get_attenuation_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2038 {
2039         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2040
2041         spin_lock_irq(&rme96->lock);
2042         ucontrol->value.enumerated.item[0] = snd_rme96_getattenuation(rme96);
2043         spin_unlock_irq(&rme96->lock);
2044         return 0;
2045 }
2046 static int
2047 snd_rme96_put_attenuation_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2048 {
2049         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2050         unsigned int val;
2051         int change;
2052
2053         val = ucontrol->value.enumerated.item[0] % 4;
2054         spin_lock_irq(&rme96->lock);
2055
2056         change = (int)val != snd_rme96_getattenuation(rme96);
2057         snd_rme96_setattenuation(rme96, val);
2058         spin_unlock_irq(&rme96->lock);
2059         return change;
2060 }
2061
2062 static int
2063 snd_rme96_info_montracks_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2064 {
2065         static char *texts[4] = { "1+2", "3+4", "5+6", "7+8" };
2066
2067         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2068         uinfo->count = 1;
2069         uinfo->value.enumerated.items = 4;
2070         if (uinfo->value.enumerated.item > 3) {
2071                 uinfo->value.enumerated.item = 3;
2072         }
2073         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
2074         return 0;
2075 }
2076 static int
2077 snd_rme96_get_montracks_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2078 {
2079         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2080
2081         spin_lock_irq(&rme96->lock);
2082         ucontrol->value.enumerated.item[0] = snd_rme96_getmontracks(rme96);
2083         spin_unlock_irq(&rme96->lock);
2084         return 0;
2085 }
2086 static int
2087 snd_rme96_put_montracks_control(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2088 {
2089         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2090         unsigned int val;
2091         int change;
2092
2093         val = ucontrol->value.enumerated.item[0] % 4;
2094         spin_lock_irq(&rme96->lock);
2095         change = (int)val != snd_rme96_getmontracks(rme96);
2096         snd_rme96_setmontracks(rme96, val);
2097         spin_unlock_irq(&rme96->lock);
2098         return change;
2099 }
2100
2101 static u32 snd_rme96_convert_from_aes(struct snd_aes_iec958 *aes)
2102 {
2103         u32 val = 0;
2104         val |= (aes->status[0] & IEC958_AES0_PROFESSIONAL) ? RME96_WCR_PRO : 0;
2105         val |= (aes->status[0] & IEC958_AES0_NONAUDIO) ? RME96_WCR_DOLBY : 0;
2106         if (val & RME96_WCR_PRO)
2107                 val |= (aes->status[0] & IEC958_AES0_PRO_EMPHASIS_5015) ? RME96_WCR_EMP : 0;
2108         else
2109                 val |= (aes->status[0] & IEC958_AES0_CON_EMPHASIS_5015) ? RME96_WCR_EMP : 0;
2110         return val;
2111 }
2112
2113 static void snd_rme96_convert_to_aes(struct snd_aes_iec958 *aes, u32 val)
2114 {
2115         aes->status[0] = ((val & RME96_WCR_PRO) ? IEC958_AES0_PROFESSIONAL : 0) |
2116                          ((val & RME96_WCR_DOLBY) ? IEC958_AES0_NONAUDIO : 0);
2117         if (val & RME96_WCR_PRO)
2118                 aes->status[0] |= (val & RME96_WCR_EMP) ? IEC958_AES0_PRO_EMPHASIS_5015 : 0;
2119         else
2120                 aes->status[0] |= (val & RME96_WCR_EMP) ? IEC958_AES0_CON_EMPHASIS_5015 : 0;
2121 }
2122
2123 static int snd_rme96_control_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2124 {
2125         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2126         uinfo->count = 1;
2127         return 0;
2128 }
2129
2130 static int snd_rme96_control_spdif_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2131 {
2132         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2133
2134         snd_rme96_convert_to_aes(&ucontrol->value.iec958, rme96->wcreg_spdif);
2135         return 0;
2136 }
2137
2138 static int snd_rme96_control_spdif_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2139 {
2140         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2141         int change;
2142         u32 val;
2143
2144         val = snd_rme96_convert_from_aes(&ucontrol->value.iec958);
2145         spin_lock_irq(&rme96->lock);
2146         change = val != rme96->wcreg_spdif;
2147         rme96->wcreg_spdif = val;
2148         spin_unlock_irq(&rme96->lock);
2149         return change;
2150 }
2151
2152 static int snd_rme96_control_spdif_stream_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2153 {
2154         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2155         uinfo->count = 1;
2156         return 0;
2157 }
2158
2159 static int snd_rme96_control_spdif_stream_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2160 {
2161         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2162
2163         snd_rme96_convert_to_aes(&ucontrol->value.iec958, rme96->wcreg_spdif_stream);
2164         return 0;
2165 }
2166
2167 static int snd_rme96_control_spdif_stream_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2168 {
2169         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2170         int change;
2171         u32 val;
2172
2173         val = snd_rme96_convert_from_aes(&ucontrol->value.iec958);
2174         spin_lock_irq(&rme96->lock);
2175         change = val != rme96->wcreg_spdif_stream;
2176         rme96->wcreg_spdif_stream = val;
2177         rme96->wcreg &= ~(RME96_WCR_PRO | RME96_WCR_DOLBY | RME96_WCR_EMP);
2178         rme96->wcreg |= val;
2179         writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
2180         spin_unlock_irq(&rme96->lock);
2181         return change;
2182 }
2183
2184 static int snd_rme96_control_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2185 {
2186         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2187         uinfo->count = 1;
2188         return 0;
2189 }
2190
2191 static int snd_rme96_control_spdif_mask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2192 {
2193         ucontrol->value.iec958.status[0] = kcontrol->private_value;
2194         return 0;
2195 }
2196
2197 static int
2198 snd_rme96_dac_volume_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
2199 {
2200         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2201
2202         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2203         uinfo->count = 2;
2204         uinfo->value.integer.min = 0;
2205         uinfo->value.integer.max = RME96_185X_MAX_OUT(rme96);
2206         return 0;
2207 }
2208
2209 static int
2210 snd_rme96_dac_volume_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *u)
2211 {
2212         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2213
2214         spin_lock_irq(&rme96->lock);
2215         u->value.integer.value[0] = rme96->vol[0];
2216         u->value.integer.value[1] = rme96->vol[1];
2217         spin_unlock_irq(&rme96->lock);
2218
2219         return 0;
2220 }
2221
2222 static int
2223 snd_rme96_dac_volume_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *u)
2224 {
2225         struct rme96 *rme96 = snd_kcontrol_chip(kcontrol);
2226         int change = 0;
2227
2228         if (!RME96_HAS_ANALOG_OUT(rme96)) {
2229                 return -EINVAL;
2230         }
2231         spin_lock_irq(&rme96->lock);
2232         if (u->value.integer.value[0] != rme96->vol[0]) {
2233                 rme96->vol[0] = u->value.integer.value[0];
2234                 change = 1;
2235         }
2236         if (u->value.integer.value[1] != rme96->vol[1]) {
2237                 rme96->vol[1] = u->value.integer.value[1];
2238                 change = 1;
2239         }
2240         if (change) {
2241                 snd_rme96_apply_dac_volume(rme96);
2242         }
2243         spin_unlock_irq(&rme96->lock);
2244
2245         return change;
2246 }
2247
2248 static struct snd_kcontrol_new snd_rme96_controls[] = {
2249 {
2250         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
2251         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
2252         .info =         snd_rme96_control_spdif_info,
2253         .get =          snd_rme96_control_spdif_get,
2254         .put =          snd_rme96_control_spdif_put
2255 },
2256 {
2257         .access =       SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE,
2258         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
2259         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM),
2260         .info =         snd_rme96_control_spdif_stream_info,
2261         .get =          snd_rme96_control_spdif_stream_get,
2262         .put =          snd_rme96_control_spdif_stream_put
2263 },
2264 {
2265         .access =       SNDRV_CTL_ELEM_ACCESS_READ,
2266         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
2267         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
2268         .info =         snd_rme96_control_spdif_mask_info,
2269         .get =          snd_rme96_control_spdif_mask_get,
2270         .private_value = IEC958_AES0_NONAUDIO |
2271                         IEC958_AES0_PROFESSIONAL |
2272                         IEC958_AES0_CON_EMPHASIS
2273 },
2274 {
2275         .access =       SNDRV_CTL_ELEM_ACCESS_READ,
2276         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
2277         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
2278         .info =         snd_rme96_control_spdif_mask_info,
2279         .get =          snd_rme96_control_spdif_mask_get,
2280         .private_value = IEC958_AES0_NONAUDIO |
2281                         IEC958_AES0_PROFESSIONAL |
2282                         IEC958_AES0_PRO_EMPHASIS
2283 },
2284 {
2285         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2286         .name =         "Input Connector",
2287         .info =         snd_rme96_info_inputtype_control,
2288         .get =          snd_rme96_get_inputtype_control,
2289         .put =          snd_rme96_put_inputtype_control
2290 },
2291 {
2292         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2293         .name =         "Loopback Input",
2294         .info =         snd_rme96_info_loopback_control,
2295         .get =          snd_rme96_get_loopback_control,
2296         .put =          snd_rme96_put_loopback_control
2297 },
2298 {
2299         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2300         .name =         "Sample Clock Source",
2301         .info =         snd_rme96_info_clockmode_control,
2302         .get =          snd_rme96_get_clockmode_control,
2303         .put =          snd_rme96_put_clockmode_control
2304 },
2305 {
2306         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2307         .name =         "Monitor Tracks",
2308         .info =         snd_rme96_info_montracks_control,
2309         .get =          snd_rme96_get_montracks_control,
2310         .put =          snd_rme96_put_montracks_control
2311 },
2312 {
2313         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2314         .name =         "Attenuation",
2315         .info =         snd_rme96_info_attenuation_control,
2316         .get =          snd_rme96_get_attenuation_control,
2317         .put =          snd_rme96_put_attenuation_control
2318 },
2319 {
2320         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2321         .name =         "DAC Playback Volume",
2322         .info =         snd_rme96_dac_volume_info,
2323         .get =          snd_rme96_dac_volume_get,
2324         .put =          snd_rme96_dac_volume_put
2325 }
2326 };
2327
2328 static int
2329 snd_rme96_create_switches(struct snd_card *card,
2330                           struct rme96 *rme96)
2331 {
2332         int idx, err;
2333         struct snd_kcontrol *kctl;
2334
2335         for (idx = 0; idx < 7; idx++) {
2336                 if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_rme96_controls[idx], rme96))) < 0)
2337                         return err;
2338                 if (idx == 1)   /* IEC958 (S/PDIF) Stream */
2339                         rme96->spdif_ctl = kctl;
2340         }
2341
2342         if (RME96_HAS_ANALOG_OUT(rme96)) {
2343                 for (idx = 7; idx < 10; idx++)
2344                         if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_rme96_controls[idx], rme96))) < 0)
2345                                 return err;
2346         }
2347
2348         return 0;
2349 }
2350
2351 /*
2352  * Card initialisation
2353  */
2354
2355 static void snd_rme96_card_free(struct snd_card *card)
2356 {
2357         snd_rme96_free(card->private_data);
2358 }
2359
2360 static int __devinit
2361 snd_rme96_probe(struct pci_dev *pci,
2362                 const struct pci_device_id *pci_id)
2363 {
2364         static int dev;
2365         struct rme96 *rme96;
2366         struct snd_card *card;
2367         int err;
2368         u8 val;
2369
2370         if (dev >= SNDRV_CARDS) {
2371                 return -ENODEV;
2372         }
2373         if (!enable[dev]) {
2374                 dev++;
2375                 return -ENOENT;
2376         }
2377         if ((card = snd_card_new(index[dev], id[dev], THIS_MODULE,
2378                                  sizeof(struct rme96))) == NULL)
2379                 return -ENOMEM;
2380         card->private_free = snd_rme96_card_free;
2381         rme96 = (struct rme96 *)card->private_data;
2382         rme96->card = card;
2383         rme96->pci = pci;
2384         snd_card_set_dev(card, &pci->dev);
2385         if ((err = snd_rme96_create(rme96)) < 0) {
2386                 snd_card_free(card);
2387                 return err;
2388         }
2389
2390         strcpy(card->driver, "Digi96");
2391         switch (rme96->pci->device) {
2392         case PCI_DEVICE_ID_RME_DIGI96:
2393                 strcpy(card->shortname, "RME Digi96");
2394                 break;
2395         case PCI_DEVICE_ID_RME_DIGI96_8:
2396                 strcpy(card->shortname, "RME Digi96/8");
2397                 break;
2398         case PCI_DEVICE_ID_RME_DIGI96_8_PRO:
2399                 strcpy(card->shortname, "RME Digi96/8 PRO");
2400                 break;
2401         case PCI_DEVICE_ID_RME_DIGI96_8_PAD_OR_PST:
2402                 pci_read_config_byte(rme96->pci, 8, &val);
2403                 if (val < 5) {
2404                         strcpy(card->shortname, "RME Digi96/8 PAD");
2405                 } else {
2406                         strcpy(card->shortname, "RME Digi96/8 PST");
2407                 }
2408                 break;
2409         }
2410         sprintf(card->longname, "%s at 0x%lx, irq %d", card->shortname,
2411                 rme96->port, rme96->irq);
2412
2413         if ((err = snd_card_register(card)) < 0) {
2414                 snd_card_free(card);
2415                 return err;
2416         }
2417         pci_set_drvdata(pci, card);
2418         dev++;
2419         return 0;
2420 }
2421
2422 static void __devexit snd_rme96_remove(struct pci_dev *pci)
2423 {
2424         snd_card_free(pci_get_drvdata(pci));
2425         pci_set_drvdata(pci, NULL);
2426 }
2427
2428 static struct pci_driver driver = {
2429         .name = "RME Digi96",
2430         .id_table = snd_rme96_ids,
2431         .probe = snd_rme96_probe,
2432         .remove = __devexit_p(snd_rme96_remove),
2433 };
2434
2435 static int __init alsa_card_rme96_init(void)
2436 {
2437         return pci_register_driver(&driver);
2438 }
2439
2440 static void __exit alsa_card_rme96_exit(void)
2441 {
2442         pci_unregister_driver(&driver);
2443 }
2444
2445 module_init(alsa_card_rme96_init)
2446 module_exit(alsa_card_rme96_exit)