git.oblomov.eu Git - linux-2.6/blob - sound/pci/rme9652/rme9652.c

   1 /*
   2  *   ALSA driver for RME Digi9652 audio interfaces
   3  *
   4  *      Copyright (c) 1999 IEM - Winfried Ritsch
   5  *      Copyright (c) 1999-2001  Paul Davis
   6  *
   7  *   This program is free software; you can redistribute it and/or modify
   8  *   it under the terms of the GNU General Public License as published by
   9  *   the Free Software Foundation; either version 2 of the License, or
  10  *   (at your option) any later version.
  11  *
  12  *   This program is distributed in the hope that it will be useful,
  13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *   GNU General Public License for more details.
  16  *
  17  *   You should have received a copy of the GNU General Public License
  18  *   along with this program; if not, write to the Free Software
  19  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  20  *
  21  */
  22
  23 #include <linux/delay.h>
  24 #include <linux/init.h>
  25 #include <linux/interrupt.h>
  26 #include <linux/pci.h>
  27 #include <linux/slab.h>
  28 #include <linux/moduleparam.h>
  29
  30 #include <sound/core.h>
  31 #include <sound/control.h>
  32 #include <sound/pcm.h>
  33 #include <sound/info.h>
  34 #include <sound/asoundef.h>
  35 #include <sound/initval.h>
  36
  37 #include <asm/current.h>
  38 #include <asm/io.h>
  39
  40 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  41 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  42 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;      /* Enable this card */
  43 static int precise_ptr[SNDRV_CARDS];                    /* Enable precise pointer */
  44
  45 module_param_array(index, int, NULL, 0444);
  46 MODULE_PARM_DESC(index, "Index value for RME Digi9652 (Hammerfall) soundcard.");
  47 module_param_array(id, charp, NULL, 0444);
  48 MODULE_PARM_DESC(id, "ID string for RME Digi9652 (Hammerfall) soundcard.");
  49 module_param_array(enable, bool, NULL, 0444);
  50 MODULE_PARM_DESC(enable, "Enable/disable specific RME96{52,36} soundcards.");
  51 module_param_array(precise_ptr, bool, NULL, 0444);
  52 MODULE_PARM_DESC(precise_ptr, "Enable precise pointer (doesn't work reliably).");
  53 MODULE_AUTHOR("Paul Davis <pbd@op.net>, Winfried Ritsch");
  54 MODULE_DESCRIPTION("RME Digi9652/Digi9636");
  55 MODULE_LICENSE("GPL");
  56 MODULE_SUPPORTED_DEVICE("{{RME,Hammerfall},"
  57                 "{RME,Hammerfall-Light}}");
  58
  59 /* The Hammerfall has two sets of 24 ADAT + 2 S/PDIF channels, one for
  60    capture, one for playback. Both the ADAT and S/PDIF channels appear
  61    to the host CPU in the same block of memory. There is no functional
  62    difference between them in terms of access.
  63
  64    The Hammerfall Light is identical to the Hammerfall, except that it
  65    has 2 sets 18 channels (16 ADAT + 2 S/PDIF) for capture and playback.
  66 */
  67
  68 #define RME9652_NCHANNELS       26
  69 #define RME9636_NCHANNELS       18
  70
  71 /* Preferred sync source choices - used by "sync_pref" control switch */
  72
  73 #define RME9652_SYNC_FROM_SPDIF 0
  74 #define RME9652_SYNC_FROM_ADAT1 1
  75 #define RME9652_SYNC_FROM_ADAT2 2
  76 #define RME9652_SYNC_FROM_ADAT3 3
  77
  78 /* Possible sources of S/PDIF input */
  79
  80 #define RME9652_SPDIFIN_OPTICAL 0       /* optical (ADAT1) */
  81 #define RME9652_SPDIFIN_COAXIAL 1       /* coaxial (RCA) */
  82 #define RME9652_SPDIFIN_INTERN  2       /* internal (CDROM) */
  83
  84 /* ------------- Status-Register bits --------------------- */
  85
  86 #define RME9652_IRQ        (1<<0)       /* IRQ is High if not reset by irq_clear */
  87 #define RME9652_lock_2     (1<<1)       /* ADAT 3-PLL: 1=locked, 0=unlocked */
  88 #define RME9652_lock_1     (1<<2)       /* ADAT 2-PLL: 1=locked, 0=unlocked */
  89 #define RME9652_lock_0     (1<<3)       /* ADAT 1-PLL: 1=locked, 0=unlocked */
  90 #define RME9652_fs48       (1<<4)       /* sample rate is 0=44.1/88.2,1=48/96 Khz */
  91 #define RME9652_wsel_rd    (1<<5)       /* if Word-Clock is used and valid then 1 */
  92                                         /* bits 6-15 encode h/w buffer pointer position */
  93 #define RME9652_sync_2     (1<<16)      /* if ADAT-IN 3 in sync to system clock */
  94 #define RME9652_sync_1     (1<<17)      /* if ADAT-IN 2 in sync to system clock */
  95 #define RME9652_sync_0     (1<<18)      /* if ADAT-IN 1 in sync to system clock */
  96 #define RME9652_DS_rd      (1<<19)      /* 1=Double Speed Mode, 0=Normal Speed */
  97 #define RME9652_tc_busy    (1<<20)      /* 1=time-code copy in progress (960ms) */
  98 #define RME9652_tc_out     (1<<21)      /* time-code out bit */
  99 #define RME9652_F_0        (1<<22)      /* 000=64kHz, 100=88.2kHz, 011=96kHz  */
 100 #define RME9652_F_1        (1<<23)      /* 111=32kHz, 110=44.1kHz, 101=48kHz, */
 101 #define RME9652_F_2        (1<<24)      /* external Crystal Chip if ERF=1 */
 102 #define RME9652_ERF        (1<<25)      /* Error-Flag of SDPIF Receiver (1=No Lock) */
 103 #define RME9652_buffer_id  (1<<26)      /* toggles by each interrupt on rec/play */
 104 #define RME9652_tc_valid   (1<<27)      /* 1 = a signal is detected on time-code input */
 105 #define RME9652_SPDIF_READ (1<<28)      /* byte available from Rev 1.5+ S/PDIF interface */
 106
 107 #define RME9652_sync      (RME9652_sync_0|RME9652_sync_1|RME9652_sync_2)
 108 #define RME9652_lock      (RME9652_lock_0|RME9652_lock_1|RME9652_lock_2)
 109 #define RME9652_F         (RME9652_F_0|RME9652_F_1|RME9652_F_2)
 110 #define rme9652_decode_spdif_rate(x) ((x)>>22)
 111
 112 /* Bit 6..15 : h/w buffer pointer */
 113
 114 #define RME9652_buf_pos   0x000FFC0
 115
 116 /* Bits 31,30,29 are bits 5,4,3 of h/w pointer position on later
 117    Rev G EEPROMS and Rev 1.5 cards or later.
 118 */
 119
 120 #define RME9652_REV15_buf_pos(x) ((((x)&0xE0000000)>>26)|((x)&RME9652_buf_pos))
 121
 122 /* amount of io space we remap for register access. i'm not sure we
 123    even need this much, but 1K is nice round number :)
 124 */
 125
 126 #define RME9652_IO_EXTENT     1024
 127
 128 #define RME9652_init_buffer       0
 129 #define RME9652_play_buffer       32    /* holds ptr to 26x64kBit host RAM */
 130 #define RME9652_rec_buffer        36    /* holds ptr to 26x64kBit host RAM */
 131 #define RME9652_control_register  64
 132 #define RME9652_irq_clear         96
 133 #define RME9652_time_code         100   /* useful if used with alesis adat */
 134 #define RME9652_thru_base         128   /* 132...228 Thru for 26 channels */
 135
 136 /* Read-only registers */
 137
 138 /* Writing to any of the register locations writes to the status
 139    register. We'll use the first location as our point of access.
 140 */
 141
 142 #define RME9652_status_register    0
 143
 144 /* --------- Control-Register Bits ---------------- */
 145
 146
 147 #define RME9652_start_bit          (1<<0)       /* start record/play */
 148                                                 /* bits 1-3 encode buffersize/latency */
 149 #define RME9652_Master             (1<<4)       /* Clock Mode Master=1,Slave/Auto=0 */
 150 #define RME9652_IE                 (1<<5)       /* Interrupt Enable */
 151 #define RME9652_freq               (1<<6)       /* samplerate 0=44.1/88.2, 1=48/96 kHz */
 152 #define RME9652_freq1              (1<<7)       /* if 0, 32kHz, else always 1 */
 153 #define RME9652_DS                 (1<<8)       /* Doule Speed 0=44.1/48, 1=88.2/96 Khz */
 154 #define RME9652_PRO                (1<<9)       /* S/PDIF out: 0=consumer, 1=professional */
 155 #define RME9652_EMP                (1<<10)      /*  Emphasis 0=None, 1=ON */
 156 #define RME9652_Dolby              (1<<11)      /*  Non-audio bit 1=set, 0=unset */
 157 #define RME9652_opt_out            (1<<12)      /* Use 1st optical OUT as SPDIF: 1=yes,0=no */
 158 #define RME9652_wsel               (1<<13)      /* use Wordclock as sync (overwrites master) */
 159 #define RME9652_inp_0              (1<<14)      /* SPDIF-IN: 00=optical (ADAT1),     */
 160 #define RME9652_inp_1              (1<<15)      /* 01=koaxial (Cinch), 10=Internal CDROM */
 161 #define RME9652_SyncPref_ADAT2     (1<<16)
 162 #define RME9652_SyncPref_ADAT3     (1<<17)
 163 #define RME9652_SPDIF_RESET        (1<<18)      /* Rev 1.5+: h/w S/PDIF receiver */
 164 #define RME9652_SPDIF_SELECT       (1<<19)
 165 #define RME9652_SPDIF_CLOCK        (1<<20)
 166 #define RME9652_SPDIF_WRITE        (1<<21)
 167 #define RME9652_ADAT1_INTERNAL     (1<<22)      /* Rev 1.5+: if set, internal CD connector carries ADAT */
 168
 169 /* buffersize = 512Bytes * 2^n, where n is made from Bit2 ... Bit0 */
 170
 171 #define RME9652_latency            0x0e
 172 #define rme9652_encode_latency(x)  (((x)&0x7)<<1)
 173 #define rme9652_decode_latency(x)  (((x)>>1)&0x7)
 174 #define rme9652_running_double_speed(s) ((s)->control_register & RME9652_DS)
 175 #define RME9652_inp                (RME9652_inp_0|RME9652_inp_1)
 176 #define rme9652_encode_spdif_in(x) (((x)&0x3)<<14)
 177 #define rme9652_decode_spdif_in(x) (((x)>>14)&0x3)
 178
 179 #define RME9652_SyncPref_Mask      (RME9652_SyncPref_ADAT2|RME9652_SyncPref_ADAT3)
 180 #define RME9652_SyncPref_ADAT1     0
 181 #define RME9652_SyncPref_SPDIF     (RME9652_SyncPref_ADAT2|RME9652_SyncPref_ADAT3)
 182
 183 /* the size of a substream (1 mono data stream) */
 184
 185 #define RME9652_CHANNEL_BUFFER_SAMPLES  (16*1024)
 186 #define RME9652_CHANNEL_BUFFER_BYTES    (4*RME9652_CHANNEL_BUFFER_SAMPLES)
 187
 188 /* the size of the area we need to allocate for DMA transfers. the
 189    size is the same regardless of the number of channels - the
 190    9636 still uses the same memory area.
 191
 192    Note that we allocate 1 more channel than is apparently needed
 193    because the h/w seems to write 1 byte beyond the end of the last
 194    page. Sigh.
 195 */
 196
 197 #define RME9652_DMA_AREA_BYTES ((RME9652_NCHANNELS+1) * RME9652_CHANNEL_BUFFER_BYTES)
 198 #define RME9652_DMA_AREA_KILOBYTES (RME9652_DMA_AREA_BYTES/1024)
 199
 200 struct snd_rme9652 {
 201         int dev;
 202
 203         spinlock_t lock;
 204         int irq;
 205         unsigned long port;
 206         void __iomem *iobase;
 207
 208         int precise_ptr;
 209
 210         u32 control_register;   /* cached value */
 211         u32 thru_bits;          /* thru 1=on, 0=off channel 1=Bit1... channel 26= Bit26 */
 212
 213         u32 creg_spdif;
 214         u32 creg_spdif_stream;
 215
 216         char *card_name;                /* hammerfall or hammerfall light names */
 217
 218         size_t hw_offsetmask;           /* &-with status register to get real hw_offset */
 219         size_t prev_hw_offset;          /* previous hw offset */
 220         size_t max_jitter;              /* maximum jitter in frames for
 221                                            hw pointer */
 222         size_t period_bytes;            /* guess what this is */
 223
 224         unsigned char ds_channels;
 225         unsigned char ss_channels;      /* different for hammerfall/hammerfall-light */
 226
 227         struct snd_dma_buffer playback_dma_buf;
 228         struct snd_dma_buffer capture_dma_buf;
 229
 230         unsigned char *capture_buffer;  /* suitably aligned address */
 231         unsigned char *playback_buffer; /* suitably aligned address */
 232
 233         pid_t capture_pid;
 234         pid_t playback_pid;
 235
 236         struct snd_pcm_substream *capture_substream;
 237         struct snd_pcm_substream *playback_substream;
 238         int running;
 239
 240         int passthru;                   /* non-zero if doing pass-thru */
 241         int hw_rev;                     /* h/w rev * 10 (i.e. 1.5 has hw_rev = 15) */
 242
 243         int last_spdif_sample_rate;     /* so that we can catch externally ... */
 244         int last_adat_sample_rate;      /* ... induced rate changes            */
 245
 246         char *channel_map;
 247
 248         struct snd_card *card;
 249         struct snd_pcm *pcm;
 250         struct pci_dev *pci;
 251         struct snd_kcontrol *spdif_ctl;
 252
 253 };
 254
 255 /* These tables map the ALSA channels 1..N to the channels that we
 256    need to use in order to find the relevant channel buffer. RME
 257    refer to this kind of mapping as between "the ADAT channel and
 258    the DMA channel." We index it using the logical audio channel,
 259    and the value is the DMA channel (i.e. channel buffer number)
 260    where the data for that channel can be read/written from/to.
 261 */
 262
 263 static char channel_map_9652_ss[26] = {
 264         0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
 265         18, 19, 20, 21, 22, 23, 24, 25
 266 };
 267
 268 static char channel_map_9636_ss[26] = {
 269         0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
 270         /* channels 16 and 17 are S/PDIF */
 271         24, 25,
 272         /* channels 18-25 don't exist */
 273         -1, -1, -1, -1, -1, -1, -1, -1
 274 };
 275
 276 static char channel_map_9652_ds[26] = {
 277         /* ADAT channels are remapped */
 278         1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23,
 279         /* channels 12 and 13 are S/PDIF */
 280         24, 25,
 281         /* others don't exist */
 282         -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
 283 };
 284
 285 static char channel_map_9636_ds[26] = {
 286         /* ADAT channels are remapped */
 287         1, 3, 5, 7, 9, 11, 13, 15,
 288         /* channels 8 and 9 are S/PDIF */
 289         24, 25
 290         /* others don't exist */
 291         -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
 292 };
 293
 294 static int snd_hammerfall_get_buffer(struct pci_dev *pci, struct snd_dma_buffer *dmab, size_t size)
 295 {
 296         dmab->dev.type = SNDRV_DMA_TYPE_DEV;
 297         dmab->dev.dev = snd_dma_pci_data(pci);
 298         if (snd_dma_get_reserved_buf(dmab, snd_dma_pci_buf_id(pci))) {
 299                 if (dmab->bytes >= size)
 300                         return 0;
 301         }
 302         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
 303                                 size, dmab) < 0)
 304                 return -ENOMEM;
 305         return 0;
 306 }
 307
 308 static void snd_hammerfall_free_buffer(struct snd_dma_buffer *dmab, struct pci_dev *pci)
 309 {
 310         if (dmab->area) {
 311                 dmab->dev.dev = NULL; /* make it anonymous */
 312                 snd_dma_reserve_buf(dmab, snd_dma_pci_buf_id(pci));
 313         }
 314 }
 315
 316
 317 static struct pci_device_id snd_rme9652_ids[] = {
 318         {
 319                 .vendor    = 0x10ee,
 320                 .device    = 0x3fc4,
 321                 .subvendor = PCI_ANY_ID,
 322                 .subdevice = PCI_ANY_ID,
 323         },      /* RME Digi9652 */
 324         { 0, },
 325 };
 326
 327 MODULE_DEVICE_TABLE(pci, snd_rme9652_ids);
 328
 329 static inline void rme9652_write(struct snd_rme9652 *rme9652, int reg, int val)
 330 {
 331         writel(val, rme9652->iobase + reg);
 332 }
 333
 334 static inline unsigned int rme9652_read(struct snd_rme9652 *rme9652, int reg)
 335 {
 336         return readl(rme9652->iobase + reg);
 337 }
 338
 339 static inline int snd_rme9652_use_is_exclusive(struct snd_rme9652 *rme9652)
 340 {
 341         unsigned long flags;
 342         int ret = 1;
 343
 344         spin_lock_irqsave(&rme9652->lock, flags);
 345         if ((rme9652->playback_pid != rme9652->capture_pid) &&
 346             (rme9652->playback_pid >= 0) && (rme9652->capture_pid >= 0)) {
 347                 ret = 0;
 348         }
 349         spin_unlock_irqrestore(&rme9652->lock, flags);
 350         return ret;
 351 }
 352
 353 static inline int rme9652_adat_sample_rate(struct snd_rme9652 *rme9652)
 354 {
 355         if (rme9652_running_double_speed(rme9652)) {
 356                 return (rme9652_read(rme9652, RME9652_status_register) &
 357                         RME9652_fs48) ? 96000 : 88200;
 358         } else {
 359                 return (rme9652_read(rme9652, RME9652_status_register) &
 360                         RME9652_fs48) ? 48000 : 44100;
 361         }
 362 }
 363
 364 static inline void rme9652_compute_period_size(struct snd_rme9652 *rme9652)
 365 {
 366         unsigned int i;
 367
 368         i = rme9652->control_register & RME9652_latency;
 369         rme9652->period_bytes = 1 << ((rme9652_decode_latency(i) + 8));
 370         rme9652->hw_offsetmask =
 371                 (rme9652->period_bytes * 2 - 1) & RME9652_buf_pos;
 372         rme9652->max_jitter = 80;
 373 }
 374
 375 static snd_pcm_uframes_t rme9652_hw_pointer(struct snd_rme9652 *rme9652)
 376 {
 377         int status;
 378         unsigned int offset, frag;
 379         snd_pcm_uframes_t period_size = rme9652->period_bytes / 4;
 380         snd_pcm_sframes_t delta;
 381
 382         status = rme9652_read(rme9652, RME9652_status_register);
 383         if (!rme9652->precise_ptr)
 384                 return (status & RME9652_buffer_id) ? period_size : 0;
 385         offset = status & RME9652_buf_pos;
 386
 387         /* The hardware may give a backward movement for up to 80 frames
 388            Martin Kirst <martin.kirst@freenet.de> knows the details.
 389         */
 390
 391         delta = rme9652->prev_hw_offset - offset;
 392         delta &= 0xffff;
 393         if (delta <= (snd_pcm_sframes_t)rme9652->max_jitter * 4)
 394                 offset = rme9652->prev_hw_offset;
 395         else
 396                 rme9652->prev_hw_offset = offset;
 397         offset &= rme9652->hw_offsetmask;
 398         offset /= 4;
 399         frag = status & RME9652_buffer_id;
 400
 401         if (offset < period_size) {
 402                 if (offset > rme9652->max_jitter) {
 403                         if (frag)
 404                                 printk(KERN_ERR "Unexpected hw_pointer position (bufid == 0): status: %x offset: %d\n", status, offset);
 405                 } else if (!frag)
 406                         return 0;
 407                 offset -= rme9652->max_jitter;
 408                 if ((int)offset < 0)
 409                         offset += period_size * 2;
 410         } else {
 411                 if (offset > period_size + rme9652->max_jitter) {
 412                         if (!frag)
 413                                 printk(KERN_ERR "Unexpected hw_pointer position (bufid == 1): status: %x offset: %d\n", status, offset);
 414                 } else if (frag)
 415                         return period_size;
 416                 offset -= rme9652->max_jitter;
 417         }
 418
 419         return offset;
 420 }
 421
 422 static inline void rme9652_reset_hw_pointer(struct snd_rme9652 *rme9652)
 423 {
 424         int i;
 425
 426         /* reset the FIFO pointer to zero. We do this by writing to 8
 427            registers, each of which is a 32bit wide register, and set
 428            them all to zero. Note that s->iobase is a pointer to
 429            int32, not pointer to char.
 430         */
 431
 432         for (i = 0; i < 8; i++) {
 433                 rme9652_write(rme9652, i * 4, 0);
 434                 udelay(10);
 435         }
 436         rme9652->prev_hw_offset = 0;
 437 }
 438
 439 static inline void rme9652_start(struct snd_rme9652 *s)
 440 {
 441         s->control_register |= (RME9652_IE | RME9652_start_bit);
 442         rme9652_write(s, RME9652_control_register, s->control_register);
 443 }
 444
 445 static inline void rme9652_stop(struct snd_rme9652 *s)
 446 {
 447         s->control_register &= ~(RME9652_start_bit | RME9652_IE);
 448         rme9652_write(s, RME9652_control_register, s->control_register);
 449 }
 450
 451 static int rme9652_set_interrupt_interval(struct snd_rme9652 *s,
 452                                           unsigned int frames)
 453 {
 454         int restart = 0;
 455         int n;
 456
 457         spin_lock_irq(&s->lock);
 458
 459         if ((restart = s->running)) {
 460                 rme9652_stop(s);
 461         }
 462
 463         frames >>= 7;
 464         n = 0;
 465         while (frames) {
 466                 n++;
 467                 frames >>= 1;
 468         }
 469
 470         s->control_register &= ~RME9652_latency;
 471         s->control_register |= rme9652_encode_latency(n);
 472
 473         rme9652_write(s, RME9652_control_register, s->control_register);
 474
 475         rme9652_compute_period_size(s);
 476
 477         if (restart)
 478                 rme9652_start(s);
 479
 480         spin_unlock_irq(&s->lock);
 481
 482         return 0;
 483 }
 484
 485 static int rme9652_set_rate(struct snd_rme9652 *rme9652, int rate)
 486 {
 487         int restart;
 488         int reject_if_open = 0;
 489         int xrate;
 490
 491         if (!snd_rme9652_use_is_exclusive (rme9652)) {
 492                 return -EBUSY;
 493         }
 494
 495         /* Changing from a "single speed" to a "double speed" rate is
 496            not allowed if any substreams are open. This is because
 497            such a change causes a shift in the location of
 498            the DMA buffers and a reduction in the number of available
 499            buffers.
 500
 501            Note that a similar but essentially insoluble problem
 502            exists for externally-driven rate changes. All we can do
 503            is to flag rate changes in the read/write routines.
 504          */
 505
 506         spin_lock_irq(&rme9652->lock);
 507         xrate = rme9652_adat_sample_rate(rme9652);
 508
 509         switch (rate) {
 510         case 44100:
 511                 if (xrate > 48000) {
 512                         reject_if_open = 1;
 513                 }
 514                 rate = 0;
 515                 break;
 516         case 48000:
 517                 if (xrate > 48000) {
 518                         reject_if_open = 1;
 519                 }
 520                 rate = RME9652_freq;
 521                 break;
 522         case 88200:
 523                 if (xrate < 48000) {
 524                         reject_if_open = 1;
 525                 }
 526                 rate = RME9652_DS;
 527                 break;
 528         case 96000:
 529                 if (xrate < 48000) {
 530                         reject_if_open = 1;
 531                 }
 532                 rate = RME9652_DS | RME9652_freq;
 533                 break;
 534         default:
 535                 spin_unlock_irq(&rme9652->lock);
 536                 return -EINVAL;
 537         }
 538
 539         if (reject_if_open && (rme9652->capture_pid >= 0 || rme9652->playback_pid >= 0)) {
 540                 spin_unlock_irq(&rme9652->lock);
 541                 return -EBUSY;
 542         }
 543
 544         if ((restart = rme9652->running)) {
 545                 rme9652_stop(rme9652);
 546         }
 547         rme9652->control_register &= ~(RME9652_freq | RME9652_DS);
 548         rme9652->control_register |= rate;
 549         rme9652_write(rme9652, RME9652_control_register, rme9652->control_register);
 550
 551         if (restart) {
 552                 rme9652_start(rme9652);
 553         }
 554
 555         if (rate & RME9652_DS) {
 556                 if (rme9652->ss_channels == RME9652_NCHANNELS) {
 557                         rme9652->channel_map = channel_map_9652_ds;
 558                 } else {
 559                         rme9652->channel_map = channel_map_9636_ds;
 560                 }
 561         } else {
 562                 if (rme9652->ss_channels == RME9652_NCHANNELS) {
 563                         rme9652->channel_map = channel_map_9652_ss;
 564                 } else {
 565                         rme9652->channel_map = channel_map_9636_ss;
 566                 }
 567         }
 568
 569         spin_unlock_irq(&rme9652->lock);
 570         return 0;
 571 }
 572
 573 static void rme9652_set_thru(struct snd_rme9652 *rme9652, int channel, int enable)
 574 {
 575         int i;
 576
 577         rme9652->passthru = 0;
 578
 579         if (channel < 0) {
 580
 581                 /* set thru for all channels */
 582
 583                 if (enable) {
 584                         for (i = 0; i < RME9652_NCHANNELS; i++) {
 585                                 rme9652->thru_bits |= (1 << i);
 586                                 rme9652_write(rme9652, RME9652_thru_base + i * 4, 1);
 587                         }
 588                 } else {
 589                         for (i = 0; i < RME9652_NCHANNELS; i++) {
 590                                 rme9652->thru_bits &= ~(1 << i);
 591                                 rme9652_write(rme9652, RME9652_thru_base + i * 4, 0);
 592                         }
 593                 }
 594
 595         } else {
 596                 int mapped_channel;
 597
 598                 mapped_channel = rme9652->channel_map[channel];
 599
 600                 if (enable) {
 601                         rme9652->thru_bits |= (1 << mapped_channel);
 602                 } else {
 603                         rme9652->thru_bits &= ~(1 << mapped_channel);
 604                 }
 605
 606                 rme9652_write(rme9652,
 607                                RME9652_thru_base + mapped_channel * 4,
 608                                enable ? 1 : 0);
 609         }
 610 }
 611
 612 static int rme9652_set_passthru(struct snd_rme9652 *rme9652, int onoff)
 613 {
 614         if (onoff) {
 615                 rme9652_set_thru(rme9652, -1, 1);
 616
 617                 /* we don't want interrupts, so do a
 618                    custom version of rme9652_start().
 619                 */
 620
 621                 rme9652->control_register =
 622                         RME9652_inp_0 |
 623                         rme9652_encode_latency(7) |
 624                         RME9652_start_bit;
 625
 626                 rme9652_reset_hw_pointer(rme9652);
 627
 628                 rme9652_write(rme9652, RME9652_control_register,
 629                               rme9652->control_register);
 630                 rme9652->passthru = 1;
 631         } else {
 632                 rme9652_set_thru(rme9652, -1, 0);
 633                 rme9652_stop(rme9652);
 634                 rme9652->passthru = 0;
 635         }
 636
 637         return 0;
 638 }
 639
 640 static void rme9652_spdif_set_bit (struct snd_rme9652 *rme9652, int mask, int onoff)
 641 {
 642         if (onoff)
 643                 rme9652->control_register |= mask;
 644         else
 645                 rme9652->control_register &= ~mask;
 646
 647         rme9652_write(rme9652, RME9652_control_register, rme9652->control_register);
 648 }
 649
 650 static void rme9652_spdif_write_byte (struct snd_rme9652 *rme9652, const int val)
 651 {
 652         long mask;
 653         long i;
 654
 655         for (i = 0, mask = 0x80; i < 8; i++, mask >>= 1) {
 656                 if (val & mask)
 657                         rme9652_spdif_set_bit (rme9652, RME9652_SPDIF_WRITE, 1);
 658                 else
 659                         rme9652_spdif_set_bit (rme9652, RME9652_SPDIF_WRITE, 0);
 660
 661                 rme9652_spdif_set_bit (rme9652, RME9652_SPDIF_CLOCK, 1);
 662                 rme9652_spdif_set_bit (rme9652, RME9652_SPDIF_CLOCK, 0);
 663         }
 664 }
 665
 666 static int rme9652_spdif_read_byte (struct snd_rme9652 *rme9652)
 667 {
 668         long mask;
 669         long val;
 670         long i;
 671
 672         val = 0;
 673
 674         for (i = 0, mask = 0x80;  i < 8; i++, mask >>= 1) {
 675                 rme9652_spdif_set_bit (rme9652, RME9652_SPDIF_CLOCK, 1);
 676                 if (rme9652_read (rme9652, RME9652_status_register) & RME9652_SPDIF_READ)
 677                         val |= mask;
 678                 rme9652_spdif_set_bit (rme9652, RME9652_SPDIF_CLOCK, 0);
 679         }
 680
 681         return val;
 682 }
 683
 684 static void rme9652_write_spdif_codec (struct snd_rme9652 *rme9652, const int address, const int data)
 685 {
 686         rme9652_spdif_set_bit (rme9652, RME9652_SPDIF_SELECT, 1);
 687         rme9652_spdif_write_byte (rme9652, 0x20);
 688         rme9652_spdif_write_byte (rme9652, address);
 689         rme9652_spdif_write_byte (rme9652, data);
 690         rme9652_spdif_set_bit (rme9652, RME9652_SPDIF_SELECT, 0);
 691 }
 692
 693
 694 static int rme9652_spdif_read_codec (struct snd_rme9652 *rme9652, const int address)
 695 {
 696         int ret;
 697
 698         rme9652_spdif_set_bit (rme9652, RME9652_SPDIF_SELECT, 1);
 699         rme9652_spdif_write_byte (rme9652, 0x20);
 700         rme9652_spdif_write_byte (rme9652, address);
 701         rme9652_spdif_set_bit (rme9652, RME9652_SPDIF_SELECT, 0);
 702         rme9652_spdif_set_bit (rme9652, RME9652_SPDIF_SELECT, 1);
 703
 704         rme9652_spdif_write_byte (rme9652, 0x21);
 705         ret = rme9652_spdif_read_byte (rme9652);
 706         rme9652_spdif_set_bit (rme9652, RME9652_SPDIF_SELECT, 0);
 707
 708         return ret;
 709 }
 710
 711 static void rme9652_initialize_spdif_receiver (struct snd_rme9652 *rme9652)
 712 {
 713         /* XXX what unsets this ? */
 714
 715         rme9652->control_register |= RME9652_SPDIF_RESET;
 716
 717         rme9652_write_spdif_codec (rme9652, 4, 0x40);
 718         rme9652_write_spdif_codec (rme9652, 17, 0x13);
 719         rme9652_write_spdif_codec (rme9652, 6, 0x02);
 720 }
 721
 722 static inline int rme9652_spdif_sample_rate(struct snd_rme9652 *s)
 723 {
 724         unsigned int rate_bits;
 725
 726         if (rme9652_read(s, RME9652_status_register) & RME9652_ERF) {
 727                 return -1;      /* error condition */
 728         }
 729
 730         if (s->hw_rev == 15) {
 731
 732                 int x, y, ret;
 733
 734                 x = rme9652_spdif_read_codec (s, 30);
 735
 736                 if (x != 0)
 737                         y = 48000 * 64 / x;
 738                 else
 739                         y = 0;
 740
 741                 if      (y > 30400 && y < 33600)  ret = 32000;
 742                 else if (y > 41900 && y < 46000)  ret = 44100;
 743                 else if (y > 46000 && y < 50400)  ret = 48000;
 744                 else if (y > 60800 && y < 67200)  ret = 64000;
 745                 else if (y > 83700 && y < 92000)  ret = 88200;
 746                 else if (y > 92000 && y < 100000) ret = 96000;
 747                 else                              ret = 0;
 748                 return ret;
 749         }
 750
 751         rate_bits = rme9652_read(s, RME9652_status_register) & RME9652_F;
 752
 753         switch (rme9652_decode_spdif_rate(rate_bits)) {
 754         case 0x7:
 755                 return 32000;
 756                 break;
 757
 758         case 0x6:
 759                 return 44100;
 760                 break;
 761
 762         case 0x5:
 763                 return 48000;
 764                 break;
 765
 766         case 0x4:
 767                 return 88200;
 768                 break;
 769
 770         case 0x3:
 771                 return 96000;
 772                 break;
 773
 774         case 0x0:
 775                 return 64000;
 776                 break;
 777
 778         default:
 779                 snd_printk(KERN_ERR "%s: unknown S/PDIF input rate (bits = 0x%x)\n",
 780                            s->card_name, rate_bits);
 781                 return 0;
 782                 break;
 783         }
 784 }
 785
 786 /*-----------------------------------------------------------------------------
 787   Control Interface
 788   ----------------------------------------------------------------------------*/
 789
 790 static u32 snd_rme9652_convert_from_aes(struct snd_aes_iec958 *aes)
 791 {
 792         u32 val = 0;
 793         val |= (aes->status[0] & IEC958_AES0_PROFESSIONAL) ? RME9652_PRO : 0;
 794         val |= (aes->status[0] & IEC958_AES0_NONAUDIO) ? RME9652_Dolby : 0;
 795         if (val & RME9652_PRO)
 796                 val |= (aes->status[0] & IEC958_AES0_PRO_EMPHASIS_5015) ? RME9652_EMP : 0;
 797         else
 798                 val |= (aes->status[0] & IEC958_AES0_CON_EMPHASIS_5015) ? RME9652_EMP : 0;
 799         return val;
 800 }
 801
 802 static void snd_rme9652_convert_to_aes(struct snd_aes_iec958 *aes, u32 val)
 803 {
 804         aes->status[0] = ((val & RME9652_PRO) ? IEC958_AES0_PROFESSIONAL : 0) |
 805                          ((val & RME9652_Dolby) ? IEC958_AES0_NONAUDIO : 0);
 806         if (val & RME9652_PRO)
 807                 aes->status[0] |= (val & RME9652_EMP) ? IEC958_AES0_PRO_EMPHASIS_5015 : 0;
 808         else
 809                 aes->status[0] |= (val & RME9652_EMP) ? IEC958_AES0_CON_EMPHASIS_5015 : 0;
 810 }
 811
 812 static int snd_rme9652_control_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 813 {
 814         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
 815         uinfo->count = 1;
 816         return 0;
 817 }
 818
 819 static int snd_rme9652_control_spdif_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 820 {
 821         struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
 822
 823         snd_rme9652_convert_to_aes(&ucontrol->value.iec958, rme9652->creg_spdif);
 824         return 0;
 825 }
 826
 827 static int snd_rme9652_control_spdif_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 828 {
 829         struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
 830         int change;
 831         u32 val;
 832
 833         val = snd_rme9652_convert_from_aes(&ucontrol->value.iec958);
 834         spin_lock_irq(&rme9652->lock);
 835         change = val != rme9652->creg_spdif;
 836         rme9652->creg_spdif = val;
 837         spin_unlock_irq(&rme9652->lock);
 838         return change;
 839 }
 840
 841 static int snd_rme9652_control_spdif_stream_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 842 {
 843         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
 844         uinfo->count = 1;
 845         return 0;
 846 }
 847
 848 static int snd_rme9652_control_spdif_stream_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 849 {
 850         struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
 851
 852         snd_rme9652_convert_to_aes(&ucontrol->value.iec958, rme9652->creg_spdif_stream);
 853         return 0;
 854 }
 855
 856 static int snd_rme9652_control_spdif_stream_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 857 {
 858         struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
 859         int change;
 860         u32 val;
 861
 862         val = snd_rme9652_convert_from_aes(&ucontrol->value.iec958);
 863         spin_lock_irq(&rme9652->lock);
 864         change = val != rme9652->creg_spdif_stream;
 865         rme9652->creg_spdif_stream = val;
 866         rme9652->control_register &= ~(RME9652_PRO | RME9652_Dolby | RME9652_EMP);
 867         rme9652_write(rme9652, RME9652_control_register, rme9652->control_register |= val);
 868         spin_unlock_irq(&rme9652->lock);
 869         return change;
 870 }
 871
 872 static int snd_rme9652_control_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 873 {
 874         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
 875         uinfo->count = 1;
 876         return 0;
 877 }
 878
 879 static int snd_rme9652_control_spdif_mask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 880 {
 881         ucontrol->value.iec958.status[0] = kcontrol->private_value;
 882         return 0;
 883 }
 884
 885 #define RME9652_ADAT1_IN(xname, xindex) \
 886 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
 887   .info = snd_rme9652_info_adat1_in, \
 888   .get = snd_rme9652_get_adat1_in, \
 889   .put = snd_rme9652_put_adat1_in }
 890
 891 static unsigned int rme9652_adat1_in(struct snd_rme9652 *rme9652)
 892 {
 893         if (rme9652->control_register & RME9652_ADAT1_INTERNAL)
 894                 return 1;
 895         return 0;
 896 }
 897
 898 static int rme9652_set_adat1_input(struct snd_rme9652 *rme9652, int internal)
 899 {
 900         int restart = 0;
 901
 902         if (internal) {
 903                 rme9652->control_register |= RME9652_ADAT1_INTERNAL;
 904         } else {
 905                 rme9652->control_register &= ~RME9652_ADAT1_INTERNAL;
 906         }
 907
 908         /* XXX do we actually need to stop the card when we do this ? */
 909
 910         if ((restart = rme9652->running)) {
 911                 rme9652_stop(rme9652);
 912         }
 913
 914         rme9652_write(rme9652, RME9652_control_register, rme9652->control_register);
 915
 916         if (restart) {
 917                 rme9652_start(rme9652);
 918         }
 919
 920         return 0;
 921 }
 922
 923 static int snd_rme9652_info_adat1_in(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 924 {
 925         static char *texts[2] = {"ADAT1", "Internal"};
 926
 927         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 928         uinfo->count = 1;
 929         uinfo->value.enumerated.items = 2;
 930         if (uinfo->value.enumerated.item > 1)
 931                 uinfo->value.enumerated.item = 1;
 932         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
 933         return 0;
 934 }
 935
 936 static int snd_rme9652_get_adat1_in(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 937 {
 938         struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
 939
 940         spin_lock_irq(&rme9652->lock);
 941         ucontrol->value.enumerated.item[0] = rme9652_adat1_in(rme9652);
 942         spin_unlock_irq(&rme9652->lock);
 943         return 0;
 944 }
 945
 946 static int snd_rme9652_put_adat1_in(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 947 {
 948         struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
 949         int change;
 950         unsigned int val;
 951
 952         if (!snd_rme9652_use_is_exclusive(rme9652))
 953                 return -EBUSY;
 954         val = ucontrol->value.enumerated.item[0] % 2;
 955         spin_lock_irq(&rme9652->lock);
 956         change = val != rme9652_adat1_in(rme9652);
 957         if (change)
 958                 rme9652_set_adat1_input(rme9652, val);
 959         spin_unlock_irq(&rme9652->lock);
 960         return change;
 961 }
 962
 963 #define RME9652_SPDIF_IN(xname, xindex) \
 964 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
 965   .info = snd_rme9652_info_spdif_in, \
 966   .get = snd_rme9652_get_spdif_in, .put = snd_rme9652_put_spdif_in }
 967
 968 static unsigned int rme9652_spdif_in(struct snd_rme9652 *rme9652)
 969 {
 970         return rme9652_decode_spdif_in(rme9652->control_register &
 971                                        RME9652_inp);
 972 }
 973
 974 static int rme9652_set_spdif_input(struct snd_rme9652 *rme9652, int in)
 975 {
 976         int restart = 0;
 977
 978         rme9652->control_register &= ~RME9652_inp;
 979         rme9652->control_register |= rme9652_encode_spdif_in(in);
 980
 981         if ((restart = rme9652->running)) {
 982                 rme9652_stop(rme9652);
 983         }
 984
 985         rme9652_write(rme9652, RME9652_control_register, rme9652->control_register);
 986
 987         if (restart) {
 988                 rme9652_start(rme9652);
 989         }
 990
 991         return 0;
 992 }
 993
 994 static int snd_rme9652_info_spdif_in(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 995 {
 996         static char *texts[3] = {"ADAT1", "Coaxial", "Internal"};
 997
 998         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 999         uinfo->count = 1;
1000         uinfo->value.enumerated.items = 3;
1001         if (uinfo->value.enumerated.item > 2)
1002                 uinfo->value.enumerated.item = 2;
1003         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1004         return 0;
1005 }
1006
1007 static int snd_rme9652_get_spdif_in(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1008 {
1009         struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
1010
1011         spin_lock_irq(&rme9652->lock);
1012         ucontrol->value.enumerated.item[0] = rme9652_spdif_in(rme9652);
1013         spin_unlock_irq(&rme9652->lock);
1014         return 0;
1015 }
1016
1017 static int snd_rme9652_put_spdif_in(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1018 {
1019         struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
1020         int change;
1021         unsigned int val;
1022
1023         if (!snd_rme9652_use_is_exclusive(rme9652))
1024                 return -EBUSY;
1025         val = ucontrol->value.enumerated.item[0] % 3;
1026         spin_lock_irq(&rme9652->lock);
1027         change = val != rme9652_spdif_in(rme9652);
1028         if (change)
1029                 rme9652_set_spdif_input(rme9652, val);
1030         spin_unlock_irq(&rme9652->lock);
1031         return change;
1032 }
1033
1034 #define RME9652_SPDIF_OUT(xname, xindex) \
1035 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1036   .info = snd_rme9652_info_spdif_out, \
1037   .get = snd_rme9652_get_spdif_out, .put = snd_rme9652_put_spdif_out }
1038
1039 static int rme9652_spdif_out(struct snd_rme9652 *rme9652)
1040 {
1041         return (rme9652->control_register & RME9652_opt_out) ? 1 : 0;
1042 }
1043
1044 static int rme9652_set_spdif_output(struct snd_rme9652 *rme9652, int out)
1045 {
1046         int restart = 0;
1047
1048         if (out) {
1049                 rme9652->control_register |= RME9652_opt_out;
1050         } else {
1051                 rme9652->control_register &= ~RME9652_opt_out;
1052         }
1053
1054         if ((restart = rme9652->running)) {
1055                 rme9652_stop(rme9652);
1056         }
1057
1058         rme9652_write(rme9652, RME9652_control_register, rme9652->control_register);
1059
1060         if (restart) {
1061                 rme9652_start(rme9652);
1062         }
1063
1064         return 0;
1065 }
1066
1067 #define snd_rme9652_info_spdif_out      snd_ctl_boolean_mono_info
1068
1069 static int snd_rme9652_get_spdif_out(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1070 {
1071         struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
1072
1073         spin_lock_irq(&rme9652->lock);
1074         ucontrol->value.integer.value[0] = rme9652_spdif_out(rme9652);
1075         spin_unlock_irq(&rme9652->lock);
1076         return 0;
1077 }
1078
1079 static int snd_rme9652_put_spdif_out(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1080 {
1081         struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
1082         int change;
1083         unsigned int val;
1084
1085         if (!snd_rme9652_use_is_exclusive(rme9652))
1086                 return -EBUSY;
1087         val = ucontrol->value.integer.value[0] & 1;
1088         spin_lock_irq(&rme9652->lock);
1089         change = (int)val != rme9652_spdif_out(rme9652);
1090         rme9652_set_spdif_output(rme9652, val);
1091         spin_unlock_irq(&rme9652->lock);
1092         return change;
1093 }
1094
1095 #define RME9652_SYNC_MODE(xname, xindex) \
1096 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1097   .info = snd_rme9652_info_sync_mode, \
1098   .get = snd_rme9652_get_sync_mode, .put = snd_rme9652_put_sync_mode }
1099
1100 static int rme9652_sync_mode(struct snd_rme9652 *rme9652)
1101 {
1102         if (rme9652->control_register & RME9652_wsel) {
1103                 return 2;
1104         } else if (rme9652->control_register & RME9652_Master) {
1105                 return 1;
1106         } else {
1107                 return 0;
1108         }
1109 }
1110
1111 static int rme9652_set_sync_mode(struct snd_rme9652 *rme9652, int mode)
1112 {
1113         int restart = 0;
1114
1115         switch (mode) {
1116         case 0:
1117                 rme9652->control_register &=
1118                     ~(RME9652_Master | RME9652_wsel);
1119                 break;
1120         case 1:
1121                 rme9652->control_register =
1122                     (rme9652->control_register & ~RME9652_wsel) | RME9652_Master;
1123                 break;
1124         case 2:
1125                 rme9652->control_register |=
1126                     (RME9652_Master | RME9652_wsel);
1127                 break;
1128         }
1129
1130         if ((restart = rme9652->running)) {
1131                 rme9652_stop(rme9652);
1132         }
1133
1134         rme9652_write(rme9652, RME9652_control_register, rme9652->control_register);
1135
1136         if (restart) {
1137                 rme9652_start(rme9652);
1138         }
1139
1140         return 0;
1141 }
1142
1143 static int snd_rme9652_info_sync_mode(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1144 {
1145         static char *texts[3] = {"AutoSync", "Master", "Word Clock"};
1146
1147         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1148         uinfo->count = 1;
1149         uinfo->value.enumerated.items = 3;
1150         if (uinfo->value.enumerated.item > 2)
1151                 uinfo->value.enumerated.item = 2;
1152         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1153         return 0;
1154 }
1155
1156 static int snd_rme9652_get_sync_mode(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1157 {
1158         struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
1159
1160         spin_lock_irq(&rme9652->lock);
1161         ucontrol->value.enumerated.item[0] = rme9652_sync_mode(rme9652);
1162         spin_unlock_irq(&rme9652->lock);
1163         return 0;
1164 }
1165
1166 static int snd_rme9652_put_sync_mode(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1167 {
1168         struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
1169         int change;
1170         unsigned int val;
1171
1172         val = ucontrol->value.enumerated.item[0] % 3;
1173         spin_lock_irq(&rme9652->lock);
1174         change = (int)val != rme9652_sync_mode(rme9652);
1175         rme9652_set_sync_mode(rme9652, val);
1176         spin_unlock_irq(&rme9652->lock);
1177         return change;
1178 }
1179
1180 #define RME9652_SYNC_PREF(xname, xindex) \
1181 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1182   .info = snd_rme9652_info_sync_pref, \
1183   .get = snd_rme9652_get_sync_pref, .put = snd_rme9652_put_sync_pref }
1184
1185 static int rme9652_sync_pref(struct snd_rme9652 *rme9652)
1186 {
1187         switch (rme9652->control_register & RME9652_SyncPref_Mask) {
1188         case RME9652_SyncPref_ADAT1:
1189                 return RME9652_SYNC_FROM_ADAT1;
1190         case RME9652_SyncPref_ADAT2:
1191                 return RME9652_SYNC_FROM_ADAT2;
1192         case RME9652_SyncPref_ADAT3:
1193                 return RME9652_SYNC_FROM_ADAT3;
1194         case RME9652_SyncPref_SPDIF:
1195                 return RME9652_SYNC_FROM_SPDIF;
1196         }
1197         /* Not reachable */
1198         return 0;
1199 }
1200
1201 static int rme9652_set_sync_pref(struct snd_rme9652 *rme9652, int pref)
1202 {
1203         int restart;
1204
1205         rme9652->control_register &= ~RME9652_SyncPref_Mask;
1206         switch (pref) {
1207         case RME9652_SYNC_FROM_ADAT1:
1208                 rme9652->control_register |= RME9652_SyncPref_ADAT1;
1209                 break;
1210         case RME9652_SYNC_FROM_ADAT2:
1211                 rme9652->control_register |= RME9652_SyncPref_ADAT2;
1212                 break;
1213         case RME9652_SYNC_FROM_ADAT3:
1214                 rme9652->control_register |= RME9652_SyncPref_ADAT3;
1215                 break;
1216         case RME9652_SYNC_FROM_SPDIF:
1217                 rme9652->control_register |= RME9652_SyncPref_SPDIF;
1218                 break;
1219         }
1220
1221         if ((restart = rme9652->running)) {
1222                 rme9652_stop(rme9652);
1223         }
1224
1225         rme9652_write(rme9652, RME9652_control_register, rme9652->control_register);
1226
1227         if (restart) {
1228                 rme9652_start(rme9652);
1229         }
1230
1231         return 0;
1232 }
1233
1234 static int snd_rme9652_info_sync_pref(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1235 {
1236         static char *texts[4] = {"IEC958 In", "ADAT1 In", "ADAT2 In", "ADAT3 In"};
1237         struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
1238
1239         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1240         uinfo->count = 1;
1241         uinfo->value.enumerated.items = rme9652->ss_channels == RME9652_NCHANNELS ? 4 : 3;
1242         if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
1243                 uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
1244         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1245         return 0;
1246 }
1247
1248 static int snd_rme9652_get_sync_pref(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1249 {
1250         struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
1251
1252         spin_lock_irq(&rme9652->lock);
1253         ucontrol->value.enumerated.item[0] = rme9652_sync_pref(rme9652);
1254         spin_unlock_irq(&rme9652->lock);
1255         return 0;
1256 }
1257
1258 static int snd_rme9652_put_sync_pref(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1259 {
1260         struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
1261         int change, max;
1262         unsigned int val;
1263
1264         if (!snd_rme9652_use_is_exclusive(rme9652))
1265                 return -EBUSY;
1266         max = rme9652->ss_channels == RME9652_NCHANNELS ? 4 : 3;
1267         val = ucontrol->value.enumerated.item[0] % max;
1268         spin_lock_irq(&rme9652->lock);
1269         change = (int)val != rme9652_sync_pref(rme9652);
1270         rme9652_set_sync_pref(rme9652, val);
1271         spin_unlock_irq(&rme9652->lock);
1272         return change;
1273 }
1274
1275 static int snd_rme9652_info_thru(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1276 {
1277         struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
1278         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1279         uinfo->count = rme9652->ss_channels;
1280         uinfo->value.integer.min = 0;
1281         uinfo->value.integer.max = 1;
1282         return 0;
1283 }
1284
1285 static int snd_rme9652_get_thru(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1286 {
1287         struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
1288         unsigned int k;
1289         u32 thru_bits = rme9652->thru_bits;
1290
1291         for (k = 0; k < rme9652->ss_channels; ++k) {
1292                 ucontrol->value.integer.value[k] = !!(thru_bits & (1 << k));
1293         }
1294         return 0;
1295 }
1296
1297 static int snd_rme9652_put_thru(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1298 {
1299         struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
1300         int change;
1301         unsigned int chn;
1302         u32 thru_bits = 0;
1303
1304         if (!snd_rme9652_use_is_exclusive(rme9652))
1305                 return -EBUSY;
1306
1307         for (chn = 0; chn < rme9652->ss_channels; ++chn) {
1308                 if (ucontrol->value.integer.value[chn])
1309                         thru_bits |= 1 << chn;
1310         }
1311
1312         spin_lock_irq(&rme9652->lock);
1313         change = thru_bits ^ rme9652->thru_bits;
1314         if (change) {
1315                 for (chn = 0; chn < rme9652->ss_channels; ++chn) {
1316                         if (!(change & (1 << chn)))
1317                                 continue;
1318                         rme9652_set_thru(rme9652,chn,thru_bits&(1<<chn));
1319                 }
1320         }
1321         spin_unlock_irq(&rme9652->lock);
1322         return !!change;
1323 }
1324
1325 #define RME9652_PASSTHRU(xname, xindex) \
1326 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1327   .info = snd_rme9652_info_passthru, \
1328   .put = snd_rme9652_put_passthru, \
1329   .get = snd_rme9652_get_passthru }
1330
1331 #define snd_rme9652_info_passthru       snd_ctl_boolean_mono_info
1332
1333 static int snd_rme9652_get_passthru(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1334 {
1335         struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
1336
1337         spin_lock_irq(&rme9652->lock);
1338         ucontrol->value.integer.value[0] = rme9652->passthru;
1339         spin_unlock_irq(&rme9652->lock);
1340         return 0;
1341 }
1342
1343 static int snd_rme9652_put_passthru(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1344 {
1345         struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
1346         int change;
1347         unsigned int val;
1348         int err = 0;
1349
1350         if (!snd_rme9652_use_is_exclusive(rme9652))
1351                 return -EBUSY;
1352
1353         val = ucontrol->value.integer.value[0] & 1;
1354         spin_lock_irq(&rme9652->lock);
1355         change = (ucontrol->value.integer.value[0] != rme9652->passthru);
1356         if (change)
1357                 err = rme9652_set_passthru(rme9652, val);
1358         spin_unlock_irq(&rme9652->lock);
1359         return err ? err : change;
1360 }
1361
1362 /* Read-only switches */
1363
1364 #define RME9652_SPDIF_RATE(xname, xindex) \
1365 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1366   .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, \
1367   .info = snd_rme9652_info_spdif_rate, \
1368   .get = snd_rme9652_get_spdif_rate }
1369
1370 static int snd_rme9652_info_spdif_rate(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1371 {
1372         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1373         uinfo->count = 1;
1374         uinfo->value.integer.min = 0;
1375         uinfo->value.integer.max = 96000;
1376         return 0;
1377 }
1378
1379 static int snd_rme9652_get_spdif_rate(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1380 {
1381         struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
1382
1383         spin_lock_irq(&rme9652->lock);
1384         ucontrol->value.integer.value[0] = rme9652_spdif_sample_rate(rme9652);
1385         spin_unlock_irq(&rme9652->lock);
1386         return 0;
1387 }
1388
1389 #define RME9652_ADAT_SYNC(xname, xindex, xidx) \
1390 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1391   .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, \
1392   .info = snd_rme9652_info_adat_sync, \
1393   .get = snd_rme9652_get_adat_sync, .private_value = xidx }
1394
1395 static int snd_rme9652_info_adat_sync(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
1396 {
1397         static char *texts[4] = {"No Lock", "Lock", "No Lock Sync", "Lock Sync"};
1398
1399         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1400         uinfo->count = 1;
1401         uinfo->value.enumerated.items = 4;
1402         if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
1403                 uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
1404         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1405         return 0;
1406 }
1407
1408 static int snd_rme9652_get_adat_sync(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1409 {
1410         struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
1411         unsigned int mask1, mask2, val;
1412
1413         switch (kcontrol->private_value) {
1414         case 0: mask1 = RME9652_lock_0; mask2 = RME9652_sync_0; break;
1415         case 1: mask1 = RME9652_lock_1; mask2 = RME9652_sync_1; break;
1416         case 2: mask1 = RME9652_lock_2; mask2 = RME9652_sync_2; break;
1417         default: return -EINVAL;
1418         }
1419         val = rme9652_read(rme9652, RME9652_status_register);
1420         ucontrol->value.enumerated.item[0] = (val & mask1) ? 1 : 0;
1421         ucontrol->value.enumerated.item[0] |= (val & mask2) ? 2 : 0;
1422         return 0;
1423 }
1424
1425 #define RME9652_TC_VALID(xname, xindex) \
1426 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1427   .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, \
1428   .info = snd_rme9652_info_tc_valid, \
1429   .get = snd_rme9652_get_tc_valid }
1430
1431 #define snd_rme9652_info_tc_valid       snd_ctl_boolean_mono_info
1432
1433 static int snd_rme9652_get_tc_valid(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
1434 {
1435         struct snd_rme9652 *rme9652 = snd_kcontrol_chip(kcontrol);
1436
1437         ucontrol->value.integer.value[0] =
1438                 (rme9652_read(rme9652, RME9652_status_register) & RME9652_tc_valid) ? 1 : 0;
1439         return 0;
1440 }
1441
1442 #ifdef ALSA_HAS_STANDARD_WAY_OF_RETURNING_TIMECODE
1443
1444 /* FIXME: this routine needs a port to the new control API --jk */
1445
1446 static int snd_rme9652_get_tc_value(void *private_data,
1447                                     snd_kswitch_t *kswitch,
1448                                     snd_switch_t *uswitch)
1449 {
1450         struct snd_rme9652 *s = (struct snd_rme9652 *) private_data;
1451         u32 value;
1452         int i;
1453
1454         uswitch->type = SNDRV_SW_TYPE_DWORD;
1455
1456         if ((rme9652_read(s, RME9652_status_register) &
1457              RME9652_tc_valid) == 0) {
1458                 uswitch->value.data32[0] = 0;
1459                 return 0;
1460         }
1461
1462         /* timecode request */
1463
1464         rme9652_write(s, RME9652_time_code, 0);
1465
1466         /* XXX bug alert: loop-based timing !!!! */
1467
1468         for (i = 0; i < 50; i++) {
1469                 if (!(rme9652_read(s, i * 4) & RME9652_tc_busy))
1470                         break;
1471         }
1472
1473         if (!(rme9652_read(s, i * 4) & RME9652_tc_busy)) {
1474                 return -EIO;
1475         }
1476
1477         value = 0;
1478
1479         for (i = 0; i < 32; i++) {
1480                 value >>= 1;
1481
1482                 if (rme9652_read(s, i * 4) & RME9652_tc_out)
1483                         value |= 0x80000000;
1484         }
1485
1486         if (value > 2 * 60 * 48000) {
1487                 value -= 2 * 60 * 48000;
1488         } else {
1489                 value = 0;
1490         }
1491
1492         uswitch->value.data32[0] = value;
1493
1494         return 0;
1495 }
1496
1497 #endif                          /* ALSA_HAS_STANDARD_WAY_OF_RETURNING_TIMECODE */
1498
1499 static struct snd_kcontrol_new snd_rme9652_controls[] = {
1500 {
1501         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
1502         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
1503         .info =         snd_rme9652_control_spdif_info,
1504         .get =          snd_rme9652_control_spdif_get,
1505         .put =          snd_rme9652_control_spdif_put,
1506 },
1507 {
1508         .access =       SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE,
1509         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
1510         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM),
1511         .info =         snd_rme9652_control_spdif_stream_info,
1512         .get =          snd_rme9652_control_spdif_stream_get,
1513         .put =          snd_rme9652_control_spdif_stream_put,
1514 },
1515 {
1516         .access =       SNDRV_CTL_ELEM_ACCESS_READ,
1517         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
1518         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
1519         .info =         snd_rme9652_control_spdif_mask_info,
1520         .get =          snd_rme9652_control_spdif_mask_get,
1521         .private_value = IEC958_AES0_NONAUDIO |
1522                         IEC958_AES0_PROFESSIONAL |
1523                         IEC958_AES0_CON_EMPHASIS,
1524 },
1525 {
1526         .access =       SNDRV_CTL_ELEM_ACCESS_READ,
1527         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
1528         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
1529         .info =         snd_rme9652_control_spdif_mask_info,
1530         .get =          snd_rme9652_control_spdif_mask_get,
1531         .private_value = IEC958_AES0_NONAUDIO |
1532                         IEC958_AES0_PROFESSIONAL |
1533                         IEC958_AES0_PRO_EMPHASIS,
1534 },
1535 RME9652_SPDIF_IN("IEC958 Input Connector", 0),
1536 RME9652_SPDIF_OUT("IEC958 Output also on ADAT1", 0),
1537 RME9652_SYNC_MODE("Sync Mode", 0),
1538 RME9652_SYNC_PREF("Preferred Sync Source", 0),
1539 {
1540         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1541         .name = "Channels Thru",
1542         .index = 0,
1543         .info = snd_rme9652_info_thru,
1544         .get = snd_rme9652_get_thru,
1545         .put = snd_rme9652_put_thru,
1546 },
1547 RME9652_SPDIF_RATE("IEC958 Sample Rate", 0),
1548 RME9652_ADAT_SYNC("ADAT1 Sync Check", 0, 0),
1549 RME9652_ADAT_SYNC("ADAT2 Sync Check", 0, 1),
1550 RME9652_TC_VALID("Timecode Valid", 0),
1551 RME9652_PASSTHRU("Passthru", 0)
1552 };
1553
1554 static struct snd_kcontrol_new snd_rme9652_adat3_check =
1555 RME9652_ADAT_SYNC("ADAT3 Sync Check", 0, 2);
1556
1557 static struct snd_kcontrol_new snd_rme9652_adat1_input =
1558 RME9652_ADAT1_IN("ADAT1 Input Source", 0);
1559
1560 static int snd_rme9652_create_controls(struct snd_card *card, struct snd_rme9652 *rme9652)
1561 {
1562         unsigned int idx;
1563         int err;
1564         struct snd_kcontrol *kctl;
1565
1566         for (idx = 0; idx < ARRAY_SIZE(snd_rme9652_controls); idx++) {
1567                 if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_rme9652_controls[idx], rme9652))) < 0)
1568                         return err;
1569                 if (idx == 1)   /* IEC958 (S/PDIF) Stream */
1570                         rme9652->spdif_ctl = kctl;
1571         }
1572
1573         if (rme9652->ss_channels == RME9652_NCHANNELS)
1574                 if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_rme9652_adat3_check, rme9652))) < 0)
1575                         return err;
1576
1577         if (rme9652->hw_rev >= 15)
1578                 if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_rme9652_adat1_input, rme9652))) < 0)
1579                         return err;
1580
1581         return 0;
1582 }
1583
1584 /*------------------------------------------------------------
1585    /proc interface
1586  ------------------------------------------------------------*/
1587
1588 static void
1589 snd_rme9652_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
1590 {
1591         struct snd_rme9652 *rme9652 = (struct snd_rme9652 *) entry->private_data;
1592         u32 thru_bits = rme9652->thru_bits;
1593         int show_auto_sync_source = 0;
1594         int i;
1595         unsigned int status;
1596         int x;
1597
1598         status = rme9652_read(rme9652, RME9652_status_register);
1599
1600         snd_iprintf(buffer, "%s (Card #%d)\n", rme9652->card_name, rme9652->card->number + 1);
1601         snd_iprintf(buffer, "Buffers: capture %p playback %p\n",
1602                     rme9652->capture_buffer, rme9652->playback_buffer);
1603         snd_iprintf(buffer, "IRQ: %d Registers bus: 0x%lx VM: 0x%lx\n",
1604                     rme9652->irq, rme9652->port, (unsigned long)rme9652->iobase);
1605         snd_iprintf(buffer, "Control register: %x\n", rme9652->control_register);
1606
1607         snd_iprintf(buffer, "\n");
1608
1609         x = 1 << (6 + rme9652_decode_latency(rme9652->control_register &
1610                                              RME9652_latency));
1611
1612         snd_iprintf(buffer, "Latency: %d samples (2 periods of %lu bytes)\n",
1613                     x, (unsigned long) rme9652->period_bytes);
1614         snd_iprintf(buffer, "Hardware pointer (frames): %ld\n",
1615                     rme9652_hw_pointer(rme9652));
1616         snd_iprintf(buffer, "Passthru: %s\n",
1617                     rme9652->passthru ? "yes" : "no");
1618
1619         if ((rme9652->control_register & (RME9652_Master | RME9652_wsel)) == 0) {
1620                 snd_iprintf(buffer, "Clock mode: autosync\n");
1621                 show_auto_sync_source = 1;
1622         } else if (rme9652->control_register & RME9652_wsel) {
1623                 if (status & RME9652_wsel_rd) {
1624                         snd_iprintf(buffer, "Clock mode: word clock\n");
1625                 } else {
1626                         snd_iprintf(buffer, "Clock mode: word clock (no signal)\n");
1627                 }
1628         } else {
1629                 snd_iprintf(buffer, "Clock mode: master\n");
1630         }
1631
1632         if (show_auto_sync_source) {
1633                 switch (rme9652->control_register & RME9652_SyncPref_Mask) {
1634                 case RME9652_SyncPref_ADAT1:
1635                         snd_iprintf(buffer, "Pref. sync source: ADAT1\n");
1636                         break;
1637                 case RME9652_SyncPref_ADAT2:
1638                         snd_iprintf(buffer, "Pref. sync source: ADAT2\n");
1639                         break;
1640                 case RME9652_SyncPref_ADAT3:
1641                         snd_iprintf(buffer, "Pref. sync source: ADAT3\n");
1642                         break;
1643                 case RME9652_SyncPref_SPDIF:
1644                         snd_iprintf(buffer, "Pref. sync source: IEC958\n");
1645                         break;
1646                 default:
1647                         snd_iprintf(buffer, "Pref. sync source: ???\n");
1648                 }
1649         }
1650
1651         if (rme9652->hw_rev >= 15)
1652                 snd_iprintf(buffer, "\nADAT1 Input source: %s\n",
1653                             (rme9652->control_register & RME9652_ADAT1_INTERNAL) ?
1654                             "Internal" : "ADAT1 optical");
1655
1656         snd_iprintf(buffer, "\n");
1657
1658         switch (rme9652_decode_spdif_in(rme9652->control_register &
1659                                         RME9652_inp)) {
1660         case RME9652_SPDIFIN_OPTICAL:
1661                 snd_iprintf(buffer, "IEC958 input: ADAT1\n");
1662                 break;
1663         case RME9652_SPDIFIN_COAXIAL:
1664                 snd_iprintf(buffer, "IEC958 input: Coaxial\n");
1665                 break;
1666         case RME9652_SPDIFIN_INTERN:
1667                 snd_iprintf(buffer, "IEC958 input: Internal\n");
1668                 break;
1669         default:
1670                 snd_iprintf(buffer, "IEC958 input: ???\n");
1671                 break;
1672         }
1673
1674         if (rme9652->control_register & RME9652_opt_out) {
1675                 snd_iprintf(buffer, "IEC958 output: Coaxial & ADAT1\n");
1676         } else {
1677                 snd_iprintf(buffer, "IEC958 output: Coaxial only\n");
1678         }
1679
1680         if (rme9652->control_register & RME9652_PRO) {
1681                 snd_iprintf(buffer, "IEC958 quality: Professional\n");
1682         } else {
1683                 snd_iprintf(buffer, "IEC958 quality: Consumer\n");
1684         }
1685
1686         if (rme9652->control_register & RME9652_EMP) {
1687                 snd_iprintf(buffer, "IEC958 emphasis: on\n");
1688         } else {
1689                 snd_iprintf(buffer, "IEC958 emphasis: off\n");
1690         }
1691
1692         if (rme9652->control_register & RME9652_Dolby) {
1693                 snd_iprintf(buffer, "IEC958 Dolby: on\n");
1694         } else {
1695                 snd_iprintf(buffer, "IEC958 Dolby: off\n");
1696         }
1697
1698         i = rme9652_spdif_sample_rate(rme9652);
1699
1700         if (i < 0) {
1701                 snd_iprintf(buffer,
1702                             "IEC958 sample rate: error flag set\n");
1703         } else if (i == 0) {
1704                 snd_iprintf(buffer, "IEC958 sample rate: undetermined\n");
1705         } else {
1706                 snd_iprintf(buffer, "IEC958 sample rate: %d\n", i);
1707         }
1708
1709         snd_iprintf(buffer, "\n");
1710
1711         snd_iprintf(buffer, "ADAT Sample rate: %dHz\n",
1712                     rme9652_adat_sample_rate(rme9652));
1713
1714         /* Sync Check */
1715
1716         x = status & RME9652_sync_0;
1717         if (status & RME9652_lock_0) {
1718                 snd_iprintf(buffer, "ADAT1: %s\n", x ? "Sync" : "Lock");
1719         } else {
1720                 snd_iprintf(buffer, "ADAT1: No Lock\n");
1721         }
1722
1723         x = status & RME9652_sync_1;
1724         if (status & RME9652_lock_1) {
1725                 snd_iprintf(buffer, "ADAT2: %s\n", x ? "Sync" : "Lock");
1726         } else {
1727                 snd_iprintf(buffer, "ADAT2: No Lock\n");
1728         }
1729
1730         x = status & RME9652_sync_2;
1731         if (status & RME9652_lock_2) {
1732                 snd_iprintf(buffer, "ADAT3: %s\n", x ? "Sync" : "Lock");
1733         } else {
1734                 snd_iprintf(buffer, "ADAT3: No Lock\n");
1735         }
1736
1737         snd_iprintf(buffer, "\n");
1738
1739         snd_iprintf(buffer, "Timecode signal: %s\n",
1740                     (status & RME9652_tc_valid) ? "yes" : "no");
1741
1742         /* thru modes */
1743
1744         snd_iprintf(buffer, "Punch Status:\n\n");
1745
1746         for (i = 0; i < rme9652->ss_channels; i++) {
1747                 if (thru_bits & (1 << i)) {
1748                         snd_iprintf(buffer, "%2d:  on ", i + 1);
1749                 } else {
1750                         snd_iprintf(buffer, "%2d: off ", i + 1);
1751                 }
1752
1753                 if (((i + 1) % 8) == 0) {
1754                         snd_iprintf(buffer, "\n");
1755                 }
1756         }
1757
1758         snd_iprintf(buffer, "\n");
1759 }
1760
1761 static void __devinit snd_rme9652_proc_init(struct snd_rme9652 *rme9652)
1762 {
1763         struct snd_info_entry *entry;
1764
1765         if (! snd_card_proc_new(rme9652->card, "rme9652", &entry))
1766                 snd_info_set_text_ops(entry, rme9652, snd_rme9652_proc_read);
1767 }
1768
1769 static void snd_rme9652_free_buffers(struct snd_rme9652 *rme9652)
1770 {
1771         snd_hammerfall_free_buffer(&rme9652->capture_dma_buf, rme9652->pci);
1772         snd_hammerfall_free_buffer(&rme9652->playback_dma_buf, rme9652->pci);
1773 }
1774
1775 static int snd_rme9652_free(struct snd_rme9652 *rme9652)
1776 {
1777         if (rme9652->irq >= 0)
1778                 rme9652_stop(rme9652);
1779         snd_rme9652_free_buffers(rme9652);
1780
1781         if (rme9652->irq >= 0)
1782                 free_irq(rme9652->irq, (void *)rme9652);
1783         if (rme9652->iobase)
1784                 iounmap(rme9652->iobase);
1785         if (rme9652->port)
1786                 pci_release_regions(rme9652->pci);
1787
1788         pci_disable_device(rme9652->pci);
1789         return 0;
1790 }
1791
1792 static int __devinit snd_rme9652_initialize_memory(struct snd_rme9652 *rme9652)
1793 {
1794         unsigned long pb_bus, cb_bus;
1795
1796         if (snd_hammerfall_get_buffer(rme9652->pci, &rme9652->capture_dma_buf, RME9652_DMA_AREA_BYTES) < 0 ||
1797             snd_hammerfall_get_buffer(rme9652->pci, &rme9652->playback_dma_buf, RME9652_DMA_AREA_BYTES) < 0) {
1798                 if (rme9652->capture_dma_buf.area)
1799                         snd_dma_free_pages(&rme9652->capture_dma_buf);
1800                 printk(KERN_ERR "%s: no buffers available\n", rme9652->card_name);
1801                 return -ENOMEM;
1802         }
1803
1804         /* Align to bus-space 64K boundary */
1805
1806         cb_bus = ALIGN(rme9652->capture_dma_buf.addr, 0x10000ul);
1807         pb_bus = ALIGN(rme9652->playback_dma_buf.addr, 0x10000ul);
1808
1809         /* Tell the card where it is */
1810
1811         rme9652_write(rme9652, RME9652_rec_buffer, cb_bus);
1812         rme9652_write(rme9652, RME9652_play_buffer, pb_bus);
1813
1814         rme9652->capture_buffer = rme9652->capture_dma_buf.area + (cb_bus - rme9652->capture_dma_buf.addr);
1815         rme9652->playback_buffer = rme9652->playback_dma_buf.area + (pb_bus - rme9652->playback_dma_buf.addr);
1816
1817         return 0;
1818 }
1819
1820 static void snd_rme9652_set_defaults(struct snd_rme9652 *rme9652)
1821 {
1822         unsigned int k;
1823
1824         /* ASSUMPTION: rme9652->lock is either held, or
1825            there is no need to hold it (e.g. during module
1826            initialization).
1827          */
1828
1829         /* set defaults:
1830
1831            SPDIF Input via Coax
1832            autosync clock mode
1833            maximum latency (7 = 8192 samples, 64Kbyte buffer,
1834            which implies 2 4096 sample, 32Kbyte periods).
1835
1836            if rev 1.5, initialize the S/PDIF receiver.
1837
1838          */
1839
1840         rme9652->control_register =
1841             RME9652_inp_0 | rme9652_encode_latency(7);
1842
1843         rme9652_write(rme9652, RME9652_control_register, rme9652->control_register);
1844
1845         rme9652_reset_hw_pointer(rme9652);
1846         rme9652_compute_period_size(rme9652);
1847
1848         /* default: thru off for all channels */
1849
1850         for (k = 0; k < RME9652_NCHANNELS; ++k)
1851                 rme9652_write(rme9652, RME9652_thru_base + k * 4, 0);
1852
1853         rme9652->thru_bits = 0;
1854         rme9652->passthru = 0;
1855
1856         /* set a default rate so that the channel map is set up */
1857
1858         rme9652_set_rate(rme9652, 48000);
1859 }
1860
1861 static irqreturn_t snd_rme9652_interrupt(int irq, void *dev_id)
1862 {
1863         struct snd_rme9652 *rme9652 = (struct snd_rme9652 *) dev_id;
1864
1865         if (!(rme9652_read(rme9652, RME9652_status_register) & RME9652_IRQ)) {
1866                 return IRQ_NONE;
1867         }
1868
1869         rme9652_write(rme9652, RME9652_irq_clear, 0);
1870
1871         if (rme9652->capture_substream) {
1872                 snd_pcm_period_elapsed(rme9652->pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream);
1873         }
1874
1875         if (rme9652->playback_substream) {
1876                 snd_pcm_period_elapsed(rme9652->pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream);
1877         }
1878         return IRQ_HANDLED;
1879 }
1880
1881 static snd_pcm_uframes_t snd_rme9652_hw_pointer(struct snd_pcm_substream *substream)
1882 {
1883         struct snd_rme9652 *rme9652 = snd_pcm_substream_chip(substream);
1884         return rme9652_hw_pointer(rme9652);
1885 }
1886
1887 static char *rme9652_channel_buffer_location(struct snd_rme9652 *rme9652,
1888                                              int stream,
1889                                              int channel)
1890
1891 {
1892         int mapped_channel;
1893
1894         if (snd_BUG_ON(channel < 0 || channel >= RME9652_NCHANNELS))
1895                 return NULL;
1896
1897         if ((mapped_channel = rme9652->channel_map[channel]) < 0) {
1898                 return NULL;
1899         }
1900
1901         if (stream == SNDRV_PCM_STREAM_CAPTURE) {
1902                 return rme9652->capture_buffer +
1903                         (mapped_channel * RME9652_CHANNEL_BUFFER_BYTES);
1904         } else {
1905                 return rme9652->playback_buffer +
1906                         (mapped_channel * RME9652_CHANNEL_BUFFER_BYTES);
1907         }
1908 }
1909
1910 static int snd_rme9652_playback_copy(struct snd_pcm_substream *substream, int channel,
1911                                      snd_pcm_uframes_t pos, void __user *src, snd_pcm_uframes_t count)
1912 {
1913         struct snd_rme9652 *rme9652 = snd_pcm_substream_chip(substream);
1914         char *channel_buf;
1915
1916         if (snd_BUG_ON(pos + count > RME9652_CHANNEL_BUFFER_BYTES / 4))
1917                 return -EINVAL;
1918
1919         channel_buf = rme9652_channel_buffer_location (rme9652,
1920                                                        substream->pstr->stream,
1921                                                        channel);
1922         if (snd_BUG_ON(!channel_buf))
1923                 return -EIO;
1924         if (copy_from_user(channel_buf + pos * 4, src, count * 4))
1925                 return -EFAULT;
1926         return count;
1927 }
1928
1929 static int snd_rme9652_capture_copy(struct snd_pcm_substream *substream, int channel,
1930                                     snd_pcm_uframes_t pos, void __user *dst, snd_pcm_uframes_t count)
1931 {
1932         struct snd_rme9652 *rme9652 = snd_pcm_substream_chip(substream);
1933         char *channel_buf;
1934
1935         if (snd_BUG_ON(pos + count > RME9652_CHANNEL_BUFFER_BYTES / 4))
1936                 return -EINVAL;
1937
1938         channel_buf = rme9652_channel_buffer_location (rme9652,
1939                                                        substream->pstr->stream,
1940                                                        channel);
1941         if (snd_BUG_ON(!channel_buf))
1942                 return -EIO;
1943         if (copy_to_user(dst, channel_buf + pos * 4, count * 4))
1944                 return -EFAULT;
1945         return count;
1946 }
1947
1948 static int snd_rme9652_hw_silence(struct snd_pcm_substream *substream, int channel,
1949                                   snd_pcm_uframes_t pos, snd_pcm_uframes_t count)
1950 {
1951         struct snd_rme9652 *rme9652 = snd_pcm_substream_chip(substream);
1952         char *channel_buf;
1953
1954         channel_buf = rme9652_channel_buffer_location (rme9652,
1955                                                        substream->pstr->stream,
1956                                                        channel);
1957         if (snd_BUG_ON(!channel_buf))
1958                 return -EIO;
1959         memset(channel_buf + pos * 4, 0, count * 4);
1960         return count;
1961 }
1962
1963 static int snd_rme9652_reset(struct snd_pcm_substream *substream)
1964 {
1965         struct snd_pcm_runtime *runtime = substream->runtime;
1966         struct snd_rme9652 *rme9652 = snd_pcm_substream_chip(substream);
1967         struct snd_pcm_substream *other;
1968         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
1969                 other = rme9652->capture_substream;
1970         else
1971                 other = rme9652->playback_substream;
1972         if (rme9652->running)
1973                 runtime->status->hw_ptr = rme9652_hw_pointer(rme9652);
1974         else
1975                 runtime->status->hw_ptr = 0;
1976         if (other) {
1977                 struct snd_pcm_substream *s;
1978                 struct snd_pcm_runtime *oruntime = other->runtime;
1979                 snd_pcm_group_for_each_entry(s, substream) {
1980                         if (s == other) {
1981                                 oruntime->status->hw_ptr = runtime->status->hw_ptr;
1982                                 break;
1983                         }
1984                 }
1985         }
1986         return 0;
1987 }
1988
1989 static int snd_rme9652_hw_params(struct snd_pcm_substream *substream,
1990                                  struct snd_pcm_hw_params *params)
1991 {
1992         struct snd_rme9652 *rme9652 = snd_pcm_substream_chip(substream);
1993         int err;
1994         pid_t this_pid;
1995         pid_t other_pid;
1996
1997         spin_lock_irq(&rme9652->lock);
1998
1999         if (substream->pstr->stream == SNDRV_PCM_STREAM_PLAYBACK) {
2000                 rme9652->control_register &= ~(RME9652_PRO | RME9652_Dolby | RME9652_EMP);
2001                 rme9652_write(rme9652, RME9652_control_register, rme9652->control_register |= rme9652->creg_spdif_stream);
2002                 this_pid = rme9652->playback_pid;
2003                 other_pid = rme9652->capture_pid;
2004         } else {
2005                 this_pid = rme9652->capture_pid;
2006                 other_pid = rme9652->playback_pid;
2007         }
2008
2009         if ((other_pid > 0) && (this_pid != other_pid)) {
2010
2011                 /* The other stream is open, and not by the same
2012                    task as this one. Make sure that the parameters
2013                    that matter are the same.
2014                  */
2015
2016                 if ((int)params_rate(params) !=
2017                     rme9652_adat_sample_rate(rme9652)) {
2018                         spin_unlock_irq(&rme9652->lock);
2019                         _snd_pcm_hw_param_setempty(params, SNDRV_PCM_HW_PARAM_RATE);
2020                         return -EBUSY;
2021                 }
2022
2023                 if (params_period_size(params) != rme9652->period_bytes / 4) {
2024                         spin_unlock_irq(&rme9652->lock);
2025                         _snd_pcm_hw_param_setempty(params, SNDRV_PCM_HW_PARAM_PERIOD_SIZE);
2026                         return -EBUSY;
2027                 }
2028
2029                 /* We're fine. */
2030
2031                 spin_unlock_irq(&rme9652->lock);
2032                 return 0;
2033
2034         } else {
2035                 spin_unlock_irq(&rme9652->lock);
2036         }
2037
2038         /* how to make sure that the rate matches an externally-set one ?
2039          */
2040
2041         if ((err = rme9652_set_rate(rme9652, params_rate(params))) < 0) {
2042                 _snd_pcm_hw_param_setempty(params, SNDRV_PCM_HW_PARAM_RATE);
2043                 return err;
2044         }
2045
2046         if ((err = rme9652_set_interrupt_interval(rme9652, params_period_size(params))) < 0) {
2047                 _snd_pcm_hw_param_setempty(params, SNDRV_PCM_HW_PARAM_PERIOD_SIZE);
2048                 return err;
2049         }
2050
2051         return 0;
2052 }
2053
2054 static int snd_rme9652_channel_info(struct snd_pcm_substream *substream,
2055                                     struct snd_pcm_channel_info *info)
2056 {
2057         struct snd_rme9652 *rme9652 = snd_pcm_substream_chip(substream);
2058         int chn;
2059
2060         if (snd_BUG_ON(info->channel >= RME9652_NCHANNELS))
2061                 return -EINVAL;
2062
2063         if ((chn = rme9652->channel_map[info->channel]) < 0) {
2064                 return -EINVAL;
2065         }
2066
2067         info->offset = chn * RME9652_CHANNEL_BUFFER_BYTES;
2068         info->first = 0;
2069         info->step = 32;
2070         return 0;
2071 }
2072
2073 static int snd_rme9652_ioctl(struct snd_pcm_substream *substream,
2074                              unsigned int cmd, void *arg)
2075 {
2076         switch (cmd) {
2077         case SNDRV_PCM_IOCTL1_RESET:
2078         {
2079                 return snd_rme9652_reset(substream);
2080         }
2081         case SNDRV_PCM_IOCTL1_CHANNEL_INFO:
2082         {
2083                 struct snd_pcm_channel_info *info = arg;
2084                 return snd_rme9652_channel_info(substream, info);
2085         }
2086         default:
2087                 break;
2088         }
2089
2090         return snd_pcm_lib_ioctl(substream, cmd, arg);
2091 }
2092
2093 static void rme9652_silence_playback(struct snd_rme9652 *rme9652)
2094 {
2095         memset(rme9652->playback_buffer, 0, RME9652_DMA_AREA_BYTES);
2096 }
2097
2098 static int snd_rme9652_trigger(struct snd_pcm_substream *substream,
2099                                int cmd)
2100 {
2101         struct snd_rme9652 *rme9652 = snd_pcm_substream_chip(substream);
2102         struct snd_pcm_substream *other;
2103         int running;
2104         spin_lock(&rme9652->lock);
2105         running = rme9652->running;
2106         switch (cmd) {
2107         case SNDRV_PCM_TRIGGER_START:
2108                 running |= 1 << substream->stream;
2109                 break;
2110         case SNDRV_PCM_TRIGGER_STOP:
2111                 running &= ~(1 << substream->stream);
2112                 break;
2113         default:
2114                 snd_BUG();
2115                 spin_unlock(&rme9652->lock);
2116                 return -EINVAL;
2117         }
2118         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
2119                 other = rme9652->capture_substream;
2120         else
2121                 other = rme9652->playback_substream;
2122
2123         if (other) {
2124                 struct snd_pcm_substream *s;
2125                 snd_pcm_group_for_each_entry(s, substream) {
2126                         if (s == other) {
2127                                 snd_pcm_trigger_done(s, substream);
2128                                 if (cmd == SNDRV_PCM_TRIGGER_START)
2129                                         running |= 1 << s->stream;
2130                                 else
2131                                         running &= ~(1 << s->stream);
2132                                 goto _ok;
2133                         }
2134                 }
2135                 if (cmd == SNDRV_PCM_TRIGGER_START) {
2136                         if (!(running & (1 << SNDRV_PCM_STREAM_PLAYBACK)) &&
2137                             substream->stream == SNDRV_PCM_STREAM_CAPTURE)
2138                                 rme9652_silence_playback(rme9652);
2139                 } else {
2140                         if (running &&
2141                             substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
2142                                 rme9652_silence_playback(rme9652);
2143                 }
2144         } else {
2145                 if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
2146                         rme9652_silence_playback(rme9652);
2147         }
2148  _ok:
2149         snd_pcm_trigger_done(substream, substream);
2150         if (!rme9652->running && running)
2151                 rme9652_start(rme9652);
2152         else if (rme9652->running && !running)
2153                 rme9652_stop(rme9652);
2154         rme9652->running = running;
2155         spin_unlock(&rme9652->lock);
2156
2157         return 0;
2158 }
2159
2160 static int snd_rme9652_prepare(struct snd_pcm_substream *substream)
2161 {
2162         struct snd_rme9652 *rme9652 = snd_pcm_substream_chip(substream);
2163         unsigned long flags;
2164         int result = 0;
2165
2166         spin_lock_irqsave(&rme9652->lock, flags);
2167         if (!rme9652->running)
2168                 rme9652_reset_hw_pointer(rme9652);
2169         spin_unlock_irqrestore(&rme9652->lock, flags);
2170         return result;
2171 }
2172
2173 static struct snd_pcm_hardware snd_rme9652_playback_subinfo =
2174 {
2175         .info =                 (SNDRV_PCM_INFO_MMAP |
2176                                  SNDRV_PCM_INFO_MMAP_VALID |
2177                                  SNDRV_PCM_INFO_NONINTERLEAVED |
2178                                  SNDRV_PCM_INFO_SYNC_START |
2179                                  SNDRV_PCM_INFO_DOUBLE),
2180         .formats =              SNDRV_PCM_FMTBIT_S32_LE,
2181         .rates =                (SNDRV_PCM_RATE_44100 |
2182                                  SNDRV_PCM_RATE_48000 |
2183                                  SNDRV_PCM_RATE_88200 |
2184                                  SNDRV_PCM_RATE_96000),
2185         .rate_min =             44100,
2186         .rate_max =             96000,
2187         .channels_min =         10,
2188         .channels_max =         26,
2189         .buffer_bytes_max =     RME9652_CHANNEL_BUFFER_BYTES * 26,
2190         .period_bytes_min =     (64 * 4) * 10,
2191         .period_bytes_max =     (8192 * 4) * 26,
2192         .periods_min =          2,
2193         .periods_max =          2,
2194         .fifo_size =            0,
2195 };
2196
2197 static struct snd_pcm_hardware snd_rme9652_capture_subinfo =
2198 {
2199         .info =                 (SNDRV_PCM_INFO_MMAP |
2200                                  SNDRV_PCM_INFO_MMAP_VALID |
2201                                  SNDRV_PCM_INFO_NONINTERLEAVED |
2202                                  SNDRV_PCM_INFO_SYNC_START),
2203         .formats =              SNDRV_PCM_FMTBIT_S32_LE,
2204         .rates =                (SNDRV_PCM_RATE_44100 |
2205                                  SNDRV_PCM_RATE_48000 |
2206                                  SNDRV_PCM_RATE_88200 |
2207                                  SNDRV_PCM_RATE_96000),
2208         .rate_min =             44100,
2209         .rate_max =             96000,
2210         .channels_min =         10,
2211         .channels_max =         26,
2212         .buffer_bytes_max =     RME9652_CHANNEL_BUFFER_BYTES *26,
2213         .period_bytes_min =     (64 * 4) * 10,
2214         .period_bytes_max =     (8192 * 4) * 26,
2215         .periods_min =          2,
2216         .periods_max =          2,
2217         .fifo_size =            0,
2218 };
2219
2220 static unsigned int period_sizes[] = { 64, 128, 256, 512, 1024, 2048, 4096, 8192 };
2221
2222 static struct snd_pcm_hw_constraint_list hw_constraints_period_sizes = {
2223         .count = ARRAY_SIZE(period_sizes),
2224         .list = period_sizes,
2225         .mask = 0
2226 };
2227
2228 static int snd_rme9652_hw_rule_channels(struct snd_pcm_hw_params *params,
2229                                         struct snd_pcm_hw_rule *rule)
2230 {
2231         struct snd_rme9652 *rme9652 = rule->private;
2232         struct snd_interval *c = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
2233         unsigned int list[2] = { rme9652->ds_channels, rme9652->ss_channels };
2234         return snd_interval_list(c, 2, list, 0);
2235 }
2236
2237 static int snd_rme9652_hw_rule_channels_rate(struct snd_pcm_hw_params *params,
2238                                              struct snd_pcm_hw_rule *rule)
2239 {
2240         struct snd_rme9652 *rme9652 = rule->private;
2241         struct snd_interval *c = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
2242         struct snd_interval *r = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
2243         if (r->min > 48000) {
2244                 struct snd_interval t = {
2245                         .min = rme9652->ds_channels,
2246                         .max = rme9652->ds_channels,
2247                         .integer = 1,
2248                 };
2249                 return snd_interval_refine(c, &t);
2250         } else if (r->max < 88200) {
2251                 struct snd_interval t = {
2252                         .min = rme9652->ss_channels,
2253                         .max = rme9652->ss_channels,
2254                         .integer = 1,
2255                 };
2256                 return snd_interval_refine(c, &t);
2257         }
2258         return 0;
2259 }
2260
2261 static int snd_rme9652_hw_rule_rate_channels(struct snd_pcm_hw_params *params,
2262                                              struct snd_pcm_hw_rule *rule)
2263 {
2264         struct snd_rme9652 *rme9652 = rule->private;
2265         struct snd_interval *c = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
2266         struct snd_interval *r = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
2267         if (c->min >= rme9652->ss_channels) {
2268                 struct snd_interval t = {
2269                         .min = 44100,
2270                         .max = 48000,
2271                         .integer = 1,
2272                 };
2273                 return snd_interval_refine(r, &t);
2274         } else if (c->max <= rme9652->ds_channels) {
2275                 struct snd_interval t = {
2276                         .min = 88200,
2277                         .max = 96000,
2278                         .integer = 1,
2279                 };
2280                 return snd_interval_refine(r, &t);
2281         }
2282         return 0;
2283 }
2284
2285 static int snd_rme9652_playback_open(struct snd_pcm_substream *substream)
2286 {
2287         struct snd_rme9652 *rme9652 = snd_pcm_substream_chip(substream);
2288         struct snd_pcm_runtime *runtime = substream->runtime;
2289
2290         spin_lock_irq(&rme9652->lock);
2291
2292         snd_pcm_set_sync(substream);
2293
2294         runtime->hw = snd_rme9652_playback_subinfo;
2295         runtime->dma_area = rme9652->playback_buffer;
2296         runtime->dma_bytes = RME9652_DMA_AREA_BYTES;
2297
2298         if (rme9652->capture_substream == NULL) {
2299                 rme9652_stop(rme9652);
2300                 rme9652_set_thru(rme9652, -1, 0);
2301         }
2302
2303         rme9652->playback_pid = current->pid;
2304         rme9652->playback_substream = substream;
2305
2306         spin_unlock_irq(&rme9652->lock);
2307
2308         snd_pcm_hw_constraint_msbits(runtime, 0, 32, 24);
2309         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hw_constraints_period_sizes);
2310         snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
2311                              snd_rme9652_hw_rule_channels, rme9652,
2312                              SNDRV_PCM_HW_PARAM_CHANNELS, -1);
2313         snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
2314                              snd_rme9652_hw_rule_channels_rate, rme9652,
2315                              SNDRV_PCM_HW_PARAM_RATE, -1);
2316         snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
2317                              snd_rme9652_hw_rule_rate_channels, rme9652,
2318                              SNDRV_PCM_HW_PARAM_CHANNELS, -1);
2319
2320         rme9652->creg_spdif_stream = rme9652->creg_spdif;
2321         rme9652->spdif_ctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
2322         snd_ctl_notify(rme9652->card, SNDRV_CTL_EVENT_MASK_VALUE |
2323                        SNDRV_CTL_EVENT_MASK_INFO, &rme9652->spdif_ctl->id);
2324         return 0;
2325 }
2326
2327 static int snd_rme9652_playback_release(struct snd_pcm_substream *substream)
2328 {
2329         struct snd_rme9652 *rme9652 = snd_pcm_substream_chip(substream);
2330
2331         spin_lock_irq(&rme9652->lock);
2332
2333         rme9652->playback_pid = -1;
2334         rme9652->playback_substream = NULL;
2335
2336         spin_unlock_irq(&rme9652->lock);
2337
2338         rme9652->spdif_ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
2339         snd_ctl_notify(rme9652->card, SNDRV_CTL_EVENT_MASK_VALUE |
2340                        SNDRV_CTL_EVENT_MASK_INFO, &rme9652->spdif_ctl->id);
2341         return 0;
2342 }
2343
2344
2345 static int snd_rme9652_capture_open(struct snd_pcm_substream *substream)
2346 {
2347         struct snd_rme9652 *rme9652 = snd_pcm_substream_chip(substream);
2348         struct snd_pcm_runtime *runtime = substream->runtime;
2349
2350         spin_lock_irq(&rme9652->lock);
2351
2352         snd_pcm_set_sync(substream);
2353
2354         runtime->hw = snd_rme9652_capture_subinfo;
2355         runtime->dma_area = rme9652->capture_buffer;
2356         runtime->dma_bytes = RME9652_DMA_AREA_BYTES;
2357
2358         if (rme9652->playback_substream == NULL) {
2359                 rme9652_stop(rme9652);
2360                 rme9652_set_thru(rme9652, -1, 0);
2361         }
2362
2363         rme9652->capture_pid = current->pid;
2364         rme9652->capture_substream = substream;
2365
2366         spin_unlock_irq(&rme9652->lock);
2367
2368         snd_pcm_hw_constraint_msbits(runtime, 0, 32, 24);
2369         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, &hw_constraints_period_sizes);
2370         snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
2371                              snd_rme9652_hw_rule_channels, rme9652,
2372                              SNDRV_PCM_HW_PARAM_CHANNELS, -1);
2373         snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
2374                              snd_rme9652_hw_rule_channels_rate, rme9652,
2375                              SNDRV_PCM_HW_PARAM_RATE, -1);
2376         snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
2377                              snd_rme9652_hw_rule_rate_channels, rme9652,
2378                              SNDRV_PCM_HW_PARAM_CHANNELS, -1);
2379         return 0;
2380 }
2381
2382 static int snd_rme9652_capture_release(struct snd_pcm_substream *substream)
2383 {
2384         struct snd_rme9652 *rme9652 = snd_pcm_substream_chip(substream);
2385
2386         spin_lock_irq(&rme9652->lock);
2387
2388         rme9652->capture_pid = -1;
2389         rme9652->capture_substream = NULL;
2390
2391         spin_unlock_irq(&rme9652->lock);
2392         return 0;
2393 }
2394
2395 static struct snd_pcm_ops snd_rme9652_playback_ops = {
2396         .open =         snd_rme9652_playback_open,
2397         .close =        snd_rme9652_playback_release,
2398         .ioctl =        snd_rme9652_ioctl,
2399         .hw_params =    snd_rme9652_hw_params,
2400         .prepare =      snd_rme9652_prepare,
2401         .trigger =      snd_rme9652_trigger,
2402         .pointer =      snd_rme9652_hw_pointer,
2403         .copy =         snd_rme9652_playback_copy,
2404         .silence =      snd_rme9652_hw_silence,
2405 };
2406
2407 static struct snd_pcm_ops snd_rme9652_capture_ops = {
2408         .open =         snd_rme9652_capture_open,
2409         .close =        snd_rme9652_capture_release,
2410         .ioctl =        snd_rme9652_ioctl,
2411         .hw_params =    snd_rme9652_hw_params,
2412         .prepare =      snd_rme9652_prepare,
2413         .trigger =      snd_rme9652_trigger,
2414         .pointer =      snd_rme9652_hw_pointer,
2415         .copy =         snd_rme9652_capture_copy,
2416 };
2417
2418 static int __devinit snd_rme9652_create_pcm(struct snd_card *card,
2419                                          struct snd_rme9652 *rme9652)
2420 {
2421         struct snd_pcm *pcm;
2422         int err;
2423
2424         if ((err = snd_pcm_new(card,
2425                                rme9652->card_name,
2426                                0, 1, 1, &pcm)) < 0) {
2427                 return err;
2428         }
2429
2430         rme9652->pcm = pcm;
2431         pcm->private_data = rme9652;
2432         strcpy(pcm->name, rme9652->card_name);
2433
2434         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_rme9652_playback_ops);
2435         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_rme9652_capture_ops);
2436
2437         pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
2438
2439         return 0;
2440 }
2441
2442 static int __devinit snd_rme9652_create(struct snd_card *card,
2443                                      struct snd_rme9652 *rme9652,
2444                                      int precise_ptr)
2445 {
2446         struct pci_dev *pci = rme9652->pci;
2447         int err;
2448         int status;
2449         unsigned short rev;
2450
2451         rme9652->irq = -1;
2452         rme9652->card = card;
2453
2454         pci_read_config_word(rme9652->pci, PCI_CLASS_REVISION, &rev);
2455
2456         switch (rev & 0xff) {
2457         case 3:
2458         case 4:
2459         case 8:
2460         case 9:
2461                 break;
2462
2463         default:
2464                 /* who knows? */
2465                 return -ENODEV;
2466         }
2467
2468         if ((err = pci_enable_device(pci)) < 0)
2469                 return err;
2470
2471         spin_lock_init(&rme9652->lock);
2472
2473         if ((err = pci_request_regions(pci, "rme9652")) < 0)
2474                 return err;
2475         rme9652->port = pci_resource_start(pci, 0);
2476         rme9652->iobase = ioremap_nocache(rme9652->port, RME9652_IO_EXTENT);
2477         if (rme9652->iobase == NULL) {
2478                 snd_printk(KERN_ERR "unable to remap region 0x%lx-0x%lx\n", rme9652->port, rme9652->port + RME9652_IO_EXTENT - 1);
2479                 return -EBUSY;
2480         }
2481
2482         if (request_irq(pci->irq, snd_rme9652_interrupt, IRQF_SHARED,
2483                         "rme9652", rme9652)) {
2484                 snd_printk(KERN_ERR "unable to request IRQ %d\n", pci->irq);
2485                 return -EBUSY;
2486         }
2487         rme9652->irq = pci->irq;
2488         rme9652->precise_ptr = precise_ptr;
2489
2490         /* Determine the h/w rev level of the card. This seems like
2491            a particularly kludgy way to encode it, but its what RME
2492            chose to do, so we follow them ...
2493         */
2494
2495         status = rme9652_read(rme9652, RME9652_status_register);
2496         if (rme9652_decode_spdif_rate(status&RME9652_F) == 1) {
2497                 rme9652->hw_rev = 15;
2498         } else {
2499                 rme9652->hw_rev = 11;
2500         }
2501
2502         /* Differentiate between the standard Hammerfall, and the
2503            "Light", which does not have the expansion board. This
2504            method comes from information received from Mathhias
2505            Clausen at RME. Display the EEPROM and h/w revID where
2506            relevant.
2507         */
2508
2509         switch (rev) {
2510         case 8: /* original eprom */
2511                 strcpy(card->driver, "RME9636");
2512                 if (rme9652->hw_rev == 15) {
2513                         rme9652->card_name = "RME Digi9636 (Rev 1.5)";
2514                 } else {
2515                         rme9652->card_name = "RME Digi9636";
2516                 }
2517                 rme9652->ss_channels = RME9636_NCHANNELS;
2518                 break;
2519         case 9: /* W36_G EPROM */
2520                 strcpy(card->driver, "RME9636");
2521                 rme9652->card_name = "RME Digi9636 (Rev G)";
2522                 rme9652->ss_channels = RME9636_NCHANNELS;
2523                 break;
2524         case 4: /* W52_G EPROM */
2525                 strcpy(card->driver, "RME9652");
2526                 rme9652->card_name = "RME Digi9652 (Rev G)";
2527                 rme9652->ss_channels = RME9652_NCHANNELS;
2528                 break;
2529         case 3: /* original eprom */
2530                 strcpy(card->driver, "RME9652");
2531                 if (rme9652->hw_rev == 15) {
2532                         rme9652->card_name = "RME Digi9652 (Rev 1.5)";
2533                 } else {
2534                         rme9652->card_name = "RME Digi9652";
2535                 }
2536                 rme9652->ss_channels = RME9652_NCHANNELS;
2537                 break;
2538         }
2539
2540         rme9652->ds_channels = (rme9652->ss_channels - 2) / 2 + 2;
2541
2542         pci_set_master(rme9652->pci);
2543
2544         if ((err = snd_rme9652_initialize_memory(rme9652)) < 0) {
2545                 return err;
2546         }
2547
2548         if ((err = snd_rme9652_create_pcm(card, rme9652)) < 0) {
2549                 return err;
2550         }
2551
2552         if ((err = snd_rme9652_create_controls(card, rme9652)) < 0) {
2553                 return err;
2554         }
2555
2556         snd_rme9652_proc_init(rme9652);
2557
2558         rme9652->last_spdif_sample_rate = -1;
2559         rme9652->last_adat_sample_rate = -1;
2560         rme9652->playback_pid = -1;
2561         rme9652->capture_pid = -1;
2562         rme9652->capture_substream = NULL;
2563         rme9652->playback_substream = NULL;
2564
2565         snd_rme9652_set_defaults(rme9652);
2566
2567         if (rme9652->hw_rev == 15) {
2568                 rme9652_initialize_spdif_receiver (rme9652);
2569         }
2570
2571         return 0;
2572 }
2573
2574 static void snd_rme9652_card_free(struct snd_card *card)
2575 {
2576         struct snd_rme9652 *rme9652 = (struct snd_rme9652 *) card->private_data;
2577
2578         if (rme9652)
2579                 snd_rme9652_free(rme9652);
2580 }
2581
2582 static int __devinit snd_rme9652_probe(struct pci_dev *pci,
2583                                        const struct pci_device_id *pci_id)
2584 {
2585         static int dev;
2586         struct snd_rme9652 *rme9652;
2587         struct snd_card *card;
2588         int err;
2589
2590         if (dev >= SNDRV_CARDS)
2591                 return -ENODEV;
2592         if (!enable[dev]) {
2593                 dev++;
2594                 return -ENOENT;
2595         }
2596
2597         card = snd_card_new(index[dev], id[dev], THIS_MODULE,
2598                             sizeof(struct snd_rme9652));
2599
2600         if (!card)
2601                 return -ENOMEM;
2602
2603         rme9652 = (struct snd_rme9652 *) card->private_data;
2604         card->private_free = snd_rme9652_card_free;
2605         rme9652->dev = dev;
2606         rme9652->pci = pci;
2607         snd_card_set_dev(card, &pci->dev);
2608
2609         if ((err = snd_rme9652_create(card, rme9652, precise_ptr[dev])) < 0) {
2610                 snd_card_free(card);
2611                 return err;
2612         }
2613
2614         strcpy(card->shortname, rme9652->card_name);
2615
2616         sprintf(card->longname, "%s at 0x%lx, irq %d",
2617                 card->shortname, rme9652->port, rme9652->irq);
2618
2619
2620         if ((err = snd_card_register(card)) < 0) {
2621                 snd_card_free(card);
2622                 return err;
2623         }
2624         pci_set_drvdata(pci, card);
2625         dev++;
2626         return 0;
2627 }
2628
2629 static void __devexit snd_rme9652_remove(struct pci_dev *pci)
2630 {
2631         snd_card_free(pci_get_drvdata(pci));
2632         pci_set_drvdata(pci, NULL);
2633 }
2634
2635 static struct pci_driver driver = {
2636         .name     = "RME Digi9652 (Hammerfall)",
2637         .id_table = snd_rme9652_ids,
2638         .probe    = snd_rme9652_probe,
2639         .remove   = __devexit_p(snd_rme9652_remove),
2640 };
2641
2642 static int __init alsa_card_hammerfall_init(void)
2643 {
2644         return pci_register_driver(&driver);
2645 }
2646
2647 static void __exit alsa_card_hammerfall_exit(void)
2648 {
2649         pci_unregister_driver(&driver);
2650 }
2651
2652 module_init(alsa_card_hammerfall_init)
2653 module_exit(alsa_card_hammerfall_exit)