Pileus Git - ~andy/linux/blob - sound/pci/asihpi/asihpi.c

   1 /*
   2  *  Asihpi soundcard
   3  *  Copyright (c) by AudioScience Inc <alsa@audioscience.com>
   4  *
   5  *   This program is free software; you can redistribute it and/or modify
   6  *   it under the terms of version 2 of the GNU General Public License as
   7  *   published by the Free Software Foundation;
   8  *
   9  *   This program is distributed in the hope that it will be useful,
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *   GNU General Public License for more details.
  13  *
  14  *   You should have received a copy of the GNU General Public License
  15  *   along with this program; if not, write to the Free Software
  16  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  17  *
  18  *
  19  *  The following is not a condition of use, merely a request:
  20  *  If you modify this program, particularly if you fix errors, AudioScience Inc
  21  *  would appreciate it if you grant us the right to use those modifications
  22  *  for any purpose including commercial applications.
  23  */
  24
  25 #include "hpi_internal.h"
  26 #include "hpimsginit.h"
  27 #include "hpioctl.h"
  28
  29 #include <linux/pci.h>
  30 #include <linux/version.h>
  31 #include <linux/init.h>
  32 #include <linux/jiffies.h>
  33 #include <linux/slab.h>
  34 #include <linux/time.h>
  35 #include <linux/wait.h>
  36 #include <sound/core.h>
  37 #include <sound/control.h>
  38 #include <sound/pcm.h>
  39 #include <sound/pcm_params.h>
  40 #include <sound/info.h>
  41 #include <sound/initval.h>
  42 #include <sound/tlv.h>
  43 #include <sound/hwdep.h>
  44
  45
  46 MODULE_LICENSE("GPL");
  47 MODULE_AUTHOR("AudioScience inc. <support@audioscience.com>");
  48 MODULE_DESCRIPTION("AudioScience ALSA ASI5000 ASI6000 ASI87xx ASI89xx");
  49
  50 #if defined CONFIG_SND_DEBUG
  51 /* copied from pcm_lib.c, hope later patch will make that version public
  52 and this copy can be removed */
  53 static inline void
  54 snd_pcm_debug_name(struct snd_pcm_substream *substream, char *buf, size_t size)
  55 {
  56         snprintf(buf, size, "pcmC%dD%d%c:%d",
  57                  substream->pcm->card->number,
  58                  substream->pcm->device,
  59                  substream->stream ? 'c' : 'p',
  60                  substream->number);
  61 }
  62 #else
  63 static inline void
  64 snd_pcm_debug_name(struct snd_pcm_substream *substream, char *buf, size_t size)
  65 {
  66         *buf = 0;
  67 }
  68 #endif
  69
  70 #if defined CONFIG_SND_DEBUG_VERBOSE
  71 /**
  72  * snd_printddd - very verbose debug printk
  73  * @format: format string
  74  *
  75  * Works like snd_printk() for debugging purposes.
  76  * Ignored when CONFIG_SND_DEBUG_VERBOSE is not set.
  77  * Must set snd module debug parameter to 3 to enable at runtime.
  78  */
  79 #define snd_printddd(format, args...) \
  80         __snd_printk(3, __FILE__, __LINE__, format, ##args)
  81 #else
  82 #define snd_printddd(format, args...) do { } while (0)
  83 #endif
  84
  85 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* index 0-MAX */
  86 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  87 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
  88 static int enable_hpi_hwdep = 1;
  89
  90 module_param_array(index, int, NULL, S_IRUGO);
  91 MODULE_PARM_DESC(index, "ALSA index value for AudioScience soundcard.");
  92
  93 module_param_array(id, charp, NULL, S_IRUGO);
  94 MODULE_PARM_DESC(id, "ALSA ID string for AudioScience soundcard.");
  95
  96 module_param_array(enable, bool, NULL, S_IRUGO);
  97 MODULE_PARM_DESC(enable, "ALSA enable AudioScience soundcard.");
  98
  99 module_param(enable_hpi_hwdep, bool, S_IRUGO|S_IWUSR);
 100 MODULE_PARM_DESC(enable_hpi_hwdep,
 101                 "ALSA enable HPI hwdep for AudioScience soundcard ");
 102
 103 /* identify driver */
 104 #ifdef KERNEL_ALSA_BUILD
 105 static char *build_info = "Built using headers from kernel source";
 106 module_param(build_info, charp, S_IRUGO);
 107 MODULE_PARM_DESC(build_info, "built using headers from kernel source");
 108 #else
 109 static char *build_info = "Built within ALSA source";
 110 module_param(build_info, charp, S_IRUGO);
 111 MODULE_PARM_DESC(build_info, "built within ALSA source");
 112 #endif
 113
 114 /* set to 1 to dump every control from adapter to log */
 115 static const int mixer_dump;
 116
 117 #define DEFAULT_SAMPLERATE 44100
 118 static int adapter_fs = DEFAULT_SAMPLERATE;
 119
 120 /* defaults */
 121 #define PERIODS_MIN 2
 122 #define PERIOD_BYTES_MIN  2048
 123 #define BUFFER_BYTES_MAX (512 * 1024)
 124
 125 #define MAX_CLOCKSOURCES (HPI_SAMPLECLOCK_SOURCE_LAST + 1 + 7)
 126
 127 struct clk_source {
 128         int source;
 129         int index;
 130         char *name;
 131 };
 132
 133 struct clk_cache {
 134         int count;
 135         int has_local;
 136         struct clk_source s[MAX_CLOCKSOURCES];
 137 };
 138
 139 /* Per card data */
 140 struct snd_card_asihpi {
 141         struct snd_card *card;
 142         struct pci_dev *pci;
 143         u16 adapter_index;
 144         u32 serial_number;
 145         u16 type;
 146         u16 version;
 147         u16 num_outstreams;
 148         u16 num_instreams;
 149
 150         u32 h_mixer;
 151         struct clk_cache cc;
 152
 153         u16 can_dma;
 154         u16 support_grouping;
 155         u16 support_mrx;
 156         u16 update_interval_frames;
 157         u16 in_max_chans;
 158         u16 out_max_chans;
 159 };
 160
 161 /* Per stream data */
 162 struct snd_card_asihpi_pcm {
 163         struct timer_list timer;
 164         unsigned int respawn_timer;
 165         unsigned int hpi_buffer_attached;
 166         unsigned int buffer_bytes;
 167         unsigned int period_bytes;
 168         unsigned int bytes_per_sec;
 169         unsigned int pcm_buf_host_rw_ofs; /* Host R/W pos */
 170         unsigned int pcm_buf_dma_ofs;   /* DMA R/W offset in buffer */
 171         unsigned int pcm_buf_elapsed_dma_ofs;   /* DMA R/W offset in buffer */
 172         unsigned int drained_count;
 173         struct snd_pcm_substream *substream;
 174         u32 h_stream;
 175         struct hpi_format format;
 176 };
 177
 178 /* universal stream verbs work with out or in stream handles */
 179
 180 /* Functions to allow driver to give a buffer to HPI for busmastering */
 181
 182 static u16 hpi_stream_host_buffer_attach(
 183         u32 h_stream,   /* handle to outstream. */
 184         u32 size_in_bytes, /* size in bytes of bus mastering buffer */
 185         u32 pci_address
 186 )
 187 {
 188         struct hpi_message hm;
 189         struct hpi_response hr;
 190         unsigned int obj = hpi_handle_object(h_stream);
 191
 192         if (!h_stream)
 193                 return HPI_ERROR_INVALID_OBJ;
 194         hpi_init_message_response(&hm, &hr, obj,
 195                         obj == HPI_OBJ_OSTREAM ?
 196                                 HPI_OSTREAM_HOSTBUFFER_ALLOC :
 197                                 HPI_ISTREAM_HOSTBUFFER_ALLOC);
 198
 199         hpi_handle_to_indexes(h_stream, &hm.adapter_index,
 200                                 &hm.obj_index);
 201
 202         hm.u.d.u.buffer.buffer_size = size_in_bytes;
 203         hm.u.d.u.buffer.pci_address = pci_address;
 204         hm.u.d.u.buffer.command = HPI_BUFFER_CMD_INTERNAL_GRANTADAPTER;
 205         hpi_send_recv(&hm, &hr);
 206         return hr.error;
 207 }
 208
 209 static u16 hpi_stream_host_buffer_detach(u32  h_stream)
 210 {
 211         struct hpi_message hm;
 212         struct hpi_response hr;
 213         unsigned int obj = hpi_handle_object(h_stream);
 214
 215         if (!h_stream)
 216                 return HPI_ERROR_INVALID_OBJ;
 217
 218         hpi_init_message_response(&hm, &hr,  obj,
 219                         obj == HPI_OBJ_OSTREAM ?
 220                                 HPI_OSTREAM_HOSTBUFFER_FREE :
 221                                 HPI_ISTREAM_HOSTBUFFER_FREE);
 222
 223         hpi_handle_to_indexes(h_stream, &hm.adapter_index,
 224                                 &hm.obj_index);
 225         hm.u.d.u.buffer.command = HPI_BUFFER_CMD_INTERNAL_REVOKEADAPTER;
 226         hpi_send_recv(&hm, &hr);
 227         return hr.error;
 228 }
 229
 230 static inline u16 hpi_stream_start(u32 h_stream)
 231 {
 232         if (hpi_handle_object(h_stream) ==  HPI_OBJ_OSTREAM)
 233                 return hpi_outstream_start(h_stream);
 234         else
 235                 return hpi_instream_start(h_stream);
 236 }
 237
 238 static inline u16 hpi_stream_stop(u32 h_stream)
 239 {
 240         if (hpi_handle_object(h_stream) ==  HPI_OBJ_OSTREAM)
 241                 return hpi_outstream_stop(h_stream);
 242         else
 243                 return hpi_instream_stop(h_stream);
 244 }
 245
 246 static inline u16 hpi_stream_get_info_ex(
 247     u32 h_stream,
 248     u16        *pw_state,
 249     u32        *pbuffer_size,
 250     u32        *pdata_in_buffer,
 251     u32        *psample_count,
 252     u32        *pauxiliary_data
 253 )
 254 {
 255         u16 e;
 256         if (hpi_handle_object(h_stream)  ==  HPI_OBJ_OSTREAM)
 257                 e = hpi_outstream_get_info_ex(h_stream, pw_state,
 258                                         pbuffer_size, pdata_in_buffer,
 259                                         psample_count, pauxiliary_data);
 260         else
 261                 e = hpi_instream_get_info_ex(h_stream, pw_state,
 262                                         pbuffer_size, pdata_in_buffer,
 263                                         psample_count, pauxiliary_data);
 264         return e;
 265 }
 266
 267 static inline u16 hpi_stream_group_add(
 268                                         u32 h_master,
 269                                         u32 h_stream)
 270 {
 271         if (hpi_handle_object(h_master) ==  HPI_OBJ_OSTREAM)
 272                 return hpi_outstream_group_add(h_master, h_stream);
 273         else
 274                 return hpi_instream_group_add(h_master, h_stream);
 275 }
 276
 277 static inline u16 hpi_stream_group_reset(u32 h_stream)
 278 {
 279         if (hpi_handle_object(h_stream) ==  HPI_OBJ_OSTREAM)
 280                 return hpi_outstream_group_reset(h_stream);
 281         else
 282                 return hpi_instream_group_reset(h_stream);
 283 }
 284
 285 static inline u16 hpi_stream_group_get_map(
 286                                 u32 h_stream, u32 *mo, u32 *mi)
 287 {
 288         if (hpi_handle_object(h_stream) ==  HPI_OBJ_OSTREAM)
 289                 return hpi_outstream_group_get_map(h_stream, mo, mi);
 290         else
 291                 return hpi_instream_group_get_map(h_stream, mo, mi);
 292 }
 293
 294 static u16 handle_error(u16 err, int line, char *filename)
 295 {
 296         if (err)
 297                 printk(KERN_WARNING
 298                         "in file %s, line %d: HPI error %d\n",
 299                         filename, line, err);
 300         return err;
 301 }
 302
 303 #define hpi_handle_error(x)  handle_error(x, __LINE__, __FILE__)
 304
 305 /***************************** GENERAL PCM ****************/
 306
 307 static void print_hwparams(struct snd_pcm_substream *substream,
 308                                 struct snd_pcm_hw_params *p)
 309 {
 310         char name[16];
 311         snd_pcm_debug_name(substream, name, sizeof(name));
 312         snd_printd("%s HWPARAMS\n", name);
 313         snd_printd(" samplerate %d Hz\n", params_rate(p));
 314         snd_printd(" channels %d\n", params_channels(p));
 315         snd_printd(" format %d\n", params_format(p));
 316         snd_printd(" subformat %d\n", params_subformat(p));
 317         snd_printd(" buffer %d B\n", params_buffer_bytes(p));
 318         snd_printd(" period %d B\n", params_period_bytes(p));
 319         snd_printd(" access %d\n", params_access(p));
 320         snd_printd(" period_size %d\n", params_period_size(p));
 321         snd_printd(" periods %d\n", params_periods(p));
 322         snd_printd(" buffer_size %d\n", params_buffer_size(p));
 323         snd_printd(" %d B/s\n", params_rate(p) *
 324                 params_channels(p) *
 325                 snd_pcm_format_width(params_format(p)) / 8);
 326
 327 }
 328
 329 static snd_pcm_format_t hpi_to_alsa_formats[] = {
 330         -1,                     /* INVALID */
 331         SNDRV_PCM_FORMAT_U8,    /* HPI_FORMAT_PCM8_UNSIGNED        1 */
 332         SNDRV_PCM_FORMAT_S16,   /* HPI_FORMAT_PCM16_SIGNED         2 */
 333         -1,                     /* HPI_FORMAT_MPEG_L1              3 */
 334         SNDRV_PCM_FORMAT_MPEG,  /* HPI_FORMAT_MPEG_L2              4 */
 335         SNDRV_PCM_FORMAT_MPEG,  /* HPI_FORMAT_MPEG_L3              5 */
 336         -1,                     /* HPI_FORMAT_DOLBY_AC2            6 */
 337         -1,                     /* HPI_FORMAT_DOLBY_AC3            7 */
 338         SNDRV_PCM_FORMAT_S16_BE,/* HPI_FORMAT_PCM16_BIGENDIAN      8 */
 339         -1,                     /* HPI_FORMAT_AA_TAGIT1_HITS       9 */
 340         -1,                     /* HPI_FORMAT_AA_TAGIT1_INSERTS   10 */
 341         SNDRV_PCM_FORMAT_S32,   /* HPI_FORMAT_PCM32_SIGNED        11 */
 342         -1,                     /* HPI_FORMAT_RAW_BITSTREAM       12 */
 343         -1,                     /* HPI_FORMAT_AA_TAGIT1_HITS_EX1  13 */
 344         SNDRV_PCM_FORMAT_FLOAT, /* HPI_FORMAT_PCM32_FLOAT         14 */
 345 #if 1
 346         /* ALSA can't handle 3 byte sample size together with power-of-2
 347          *  constraint on buffer_bytes, so disable this format
 348          */
 349         -1
 350 #else
 351         /* SNDRV_PCM_FORMAT_S24_3LE */ /* HPI_FORMAT_PCM24_SIGNED 15 */
 352 #endif
 353 };
 354
 355
 356 static int snd_card_asihpi_format_alsa2hpi(snd_pcm_format_t alsa_format,
 357                                            u16 *hpi_format)
 358 {
 359         u16 format;
 360
 361         for (format = HPI_FORMAT_PCM8_UNSIGNED;
 362              format <= HPI_FORMAT_PCM24_SIGNED; format++) {
 363                 if (hpi_to_alsa_formats[format] == alsa_format) {
 364                         *hpi_format = format;
 365                         return 0;
 366                 }
 367         }
 368
 369         snd_printd(KERN_WARNING "failed match for alsa format %d\n",
 370                    alsa_format);
 371         *hpi_format = 0;
 372         return -EINVAL;
 373 }
 374
 375 static void snd_card_asihpi_pcm_samplerates(struct snd_card_asihpi *asihpi,
 376                                          struct snd_pcm_hardware *pcmhw)
 377 {
 378         u16 err;
 379         u32 h_control;
 380         u32 sample_rate;
 381         int idx;
 382         unsigned int rate_min = 200000;
 383         unsigned int rate_max = 0;
 384         unsigned int rates = 0;
 385
 386         if (asihpi->support_mrx) {
 387                 rates |= SNDRV_PCM_RATE_CONTINUOUS;
 388                 rates |= SNDRV_PCM_RATE_8000_96000;
 389                 rate_min = 8000;
 390                 rate_max = 100000;
 391         } else {
 392                 /* on cards without SRC,
 393                    valid rates are determined by sampleclock */
 394                 err = hpi_mixer_get_control(asihpi->h_mixer,
 395                                           HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
 396                                           HPI_CONTROL_SAMPLECLOCK, &h_control);
 397                 if (err) {
 398                         snd_printk(KERN_ERR
 399                                 "No local sampleclock, err %d\n", err);
 400                 }
 401
 402                 for (idx = -1; idx < 100; idx++) {
 403                         if (idx == -1) {
 404                                 if (hpi_sample_clock_get_sample_rate(h_control,
 405                                                                 &sample_rate))
 406                                         continue;
 407                         } else if (hpi_sample_clock_query_local_rate(h_control,
 408                                                         idx, &sample_rate)) {
 409                                 break;
 410                         }
 411
 412                         rate_min = min(rate_min, sample_rate);
 413                         rate_max = max(rate_max, sample_rate);
 414
 415                         switch (sample_rate) {
 416                         case 5512:
 417                                 rates |= SNDRV_PCM_RATE_5512;
 418                                 break;
 419                         case 8000:
 420                                 rates |= SNDRV_PCM_RATE_8000;
 421                                 break;
 422                         case 11025:
 423                                 rates |= SNDRV_PCM_RATE_11025;
 424                                 break;
 425                         case 16000:
 426                                 rates |= SNDRV_PCM_RATE_16000;
 427                                 break;
 428                         case 22050:
 429                                 rates |= SNDRV_PCM_RATE_22050;
 430                                 break;
 431                         case 32000:
 432                                 rates |= SNDRV_PCM_RATE_32000;
 433                                 break;
 434                         case 44100:
 435                                 rates |= SNDRV_PCM_RATE_44100;
 436                                 break;
 437                         case 48000:
 438                                 rates |= SNDRV_PCM_RATE_48000;
 439                                 break;
 440                         case 64000:
 441                                 rates |= SNDRV_PCM_RATE_64000;
 442                                 break;
 443                         case 88200:
 444                                 rates |= SNDRV_PCM_RATE_88200;
 445                                 break;
 446                         case 96000:
 447                                 rates |= SNDRV_PCM_RATE_96000;
 448                                 break;
 449                         case 176400:
 450                                 rates |= SNDRV_PCM_RATE_176400;
 451                                 break;
 452                         case 192000:
 453                                 rates |= SNDRV_PCM_RATE_192000;
 454                                 break;
 455                         default: /* some other rate */
 456                                 rates |= SNDRV_PCM_RATE_KNOT;
 457                         }
 458                 }
 459         }
 460
 461         pcmhw->rates = rates;
 462         pcmhw->rate_min = rate_min;
 463         pcmhw->rate_max = rate_max;
 464 }
 465
 466 static int snd_card_asihpi_pcm_hw_params(struct snd_pcm_substream *substream,
 467                                          struct snd_pcm_hw_params *params)
 468 {
 469         struct snd_pcm_runtime *runtime = substream->runtime;
 470         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
 471         struct snd_card_asihpi *card = snd_pcm_substream_chip(substream);
 472         int err;
 473         u16 format;
 474         int width;
 475         unsigned int bytes_per_sec;
 476
 477         print_hwparams(substream, params);
 478         err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
 479         if (err < 0)
 480                 return err;
 481         err = snd_card_asihpi_format_alsa2hpi(params_format(params), &format);
 482         if (err)
 483                 return err;
 484
 485         hpi_handle_error(hpi_format_create(&dpcm->format,
 486                         params_channels(params),
 487                         format, params_rate(params), 0, 0));
 488
 489         if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
 490                 if (hpi_instream_reset(dpcm->h_stream) != 0)
 491                         return -EINVAL;
 492
 493                 if (hpi_instream_set_format(
 494                         dpcm->h_stream, &dpcm->format) != 0)
 495                         return -EINVAL;
 496         }
 497
 498         dpcm->hpi_buffer_attached = 0;
 499         if (card->can_dma) {
 500                 err = hpi_stream_host_buffer_attach(dpcm->h_stream,
 501                         params_buffer_bytes(params),  runtime->dma_addr);
 502                 if (err == 0) {
 503                         snd_printdd(
 504                                 "stream_host_buffer_attach succeeded %u %lu\n",
 505                                 params_buffer_bytes(params),
 506                                 (unsigned long)runtime->dma_addr);
 507                 } else {
 508                         snd_printd("stream_host_buffer_attach error %d\n",
 509                                         err);
 510                         return -ENOMEM;
 511                 }
 512
 513                 err = hpi_stream_get_info_ex(dpcm->h_stream, NULL,
 514                                                 &dpcm->hpi_buffer_attached,
 515                                                 NULL, NULL, NULL);
 516
 517                 snd_printdd("stream_host_buffer_attach status 0x%x\n",
 518                                 dpcm->hpi_buffer_attached);
 519         }
 520         bytes_per_sec = params_rate(params) * params_channels(params);
 521         width = snd_pcm_format_width(params_format(params));
 522         bytes_per_sec *= width;
 523         bytes_per_sec /= 8;
 524         if (width < 0 || bytes_per_sec == 0)
 525                 return -EINVAL;
 526
 527         dpcm->bytes_per_sec = bytes_per_sec;
 528         dpcm->buffer_bytes = params_buffer_bytes(params);
 529         dpcm->period_bytes = params_period_bytes(params);
 530
 531         return 0;
 532 }
 533
 534 static int
 535 snd_card_asihpi_hw_free(struct snd_pcm_substream *substream)
 536 {
 537         struct snd_pcm_runtime *runtime = substream->runtime;
 538         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
 539         if (dpcm->hpi_buffer_attached)
 540                 hpi_stream_host_buffer_detach(dpcm->h_stream);
 541
 542         snd_pcm_lib_free_pages(substream);
 543         return 0;
 544 }
 545
 546 static void snd_card_asihpi_runtime_free(struct snd_pcm_runtime *runtime)
 547 {
 548         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
 549         kfree(dpcm);
 550 }
 551
 552 static void snd_card_asihpi_pcm_timer_start(struct snd_pcm_substream *
 553                                             substream)
 554 {
 555         struct snd_pcm_runtime *runtime = substream->runtime;
 556         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
 557         int expiry;
 558
 559         expiry = HZ / 200;
 560         /*? (dpcm->period_bytes * HZ / dpcm->bytes_per_sec); */
 561         expiry = max(expiry, 1); /* don't let it be zero! */
 562         dpcm->timer.expires = jiffies + expiry;
 563         dpcm->respawn_timer = 1;
 564         add_timer(&dpcm->timer);
 565 }
 566
 567 static void snd_card_asihpi_pcm_timer_stop(struct snd_pcm_substream *substream)
 568 {
 569         struct snd_pcm_runtime *runtime = substream->runtime;
 570         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
 571
 572         dpcm->respawn_timer = 0;
 573         del_timer(&dpcm->timer);
 574 }
 575
 576 static int snd_card_asihpi_trigger(struct snd_pcm_substream *substream,
 577                                            int cmd)
 578 {
 579         struct snd_card_asihpi_pcm *dpcm = substream->runtime->private_data;
 580         struct snd_card_asihpi *card = snd_pcm_substream_chip(substream);
 581         struct snd_pcm_substream *s;
 582         u16 e;
 583         char name[16];
 584
 585         snd_pcm_debug_name(substream, name, sizeof(name));
 586         snd_printdd("%s trigger\n", name);
 587
 588         switch (cmd) {
 589         case SNDRV_PCM_TRIGGER_START:
 590                 snd_pcm_group_for_each_entry(s, substream) {
 591                         struct snd_pcm_runtime *runtime = s->runtime;
 592                         struct snd_card_asihpi_pcm *ds = runtime->private_data;
 593
 594                         if (snd_pcm_substream_chip(s) != card)
 595                                 continue;
 596
 597                         /* don't link Cap and Play */
 598                         if (substream->stream != s->stream)
 599                                 continue;
 600
 601                         ds->drained_count = 0;
 602                         if (s->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 603                                 /* How do I know how much valid data is present
 604                                 * in buffer? Must be at least one period!
 605                                 * Guessing 2 periods, but if
 606                                 * buffer is bigger it may contain even more
 607                                 * data??
 608                                 */
 609                                 unsigned int preload = ds->period_bytes * 1;
 610                                 snd_printddd("%d preload x%x\n", s->number, preload);
 611                                 hpi_handle_error(hpi_outstream_write_buf(
 612                                                 ds->h_stream,
 613                                                 &runtime->dma_area[0],
 614                                                 preload,
 615                                                 &ds->format));
 616                                 ds->pcm_buf_host_rw_ofs = preload;
 617                         }
 618
 619                         if (card->support_grouping) {
 620                                 snd_printdd("%d group\n", s->number);
 621                                 e = hpi_stream_group_add(
 622                                         dpcm->h_stream,
 623                                         ds->h_stream);
 624                                 if (!e) {
 625                                         snd_pcm_trigger_done(s, substream);
 626                                 } else {
 627                                         hpi_handle_error(e);
 628                                         break;
 629                                 }
 630                         } else
 631                                 break;
 632                 }
 633                 snd_printdd("start\n");
 634                 /* start the master stream */
 635                 snd_card_asihpi_pcm_timer_start(substream);
 636                 if ((substream->stream == SNDRV_PCM_STREAM_CAPTURE) ||
 637                         !card->can_dma)
 638                         hpi_handle_error(hpi_stream_start(dpcm->h_stream));
 639                 break;
 640
 641         case SNDRV_PCM_TRIGGER_STOP:
 642                 snd_card_asihpi_pcm_timer_stop(substream);
 643                 snd_pcm_group_for_each_entry(s, substream) {
 644                         if (snd_pcm_substream_chip(s) != card)
 645                                 continue;
 646                         /* don't link Cap and Play */
 647                         if (substream->stream != s->stream)
 648                                 continue;
 649
 650                         /*? workaround linked streams don't
 651                         transition to SETUP 20070706*/
 652                         s->runtime->status->state = SNDRV_PCM_STATE_SETUP;
 653
 654                         if (card->support_grouping) {
 655                                 snd_printdd("%d group\n", s->number);
 656                                 snd_pcm_trigger_done(s, substream);
 657                         } else
 658                                 break;
 659                 }
 660                 snd_printdd("stop\n");
 661
 662                 /* _prepare and _hwparams reset the stream */
 663                 hpi_handle_error(hpi_stream_stop(dpcm->h_stream));
 664                 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
 665                         hpi_handle_error(
 666                                 hpi_outstream_reset(dpcm->h_stream));
 667
 668                 if (card->support_grouping)
 669                         hpi_handle_error(hpi_stream_group_reset(dpcm->h_stream));
 670                 break;
 671
 672         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 673                 snd_printdd("pause release\n");
 674                 hpi_handle_error(hpi_stream_start(dpcm->h_stream));
 675                 snd_card_asihpi_pcm_timer_start(substream);
 676                 break;
 677         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 678                 snd_printdd("pause\n");
 679                 snd_card_asihpi_pcm_timer_stop(substream);
 680                 hpi_handle_error(hpi_stream_stop(dpcm->h_stream));
 681                 break;
 682         default:
 683                 snd_printd(KERN_ERR "\tINVALID\n");
 684                 return -EINVAL;
 685         }
 686
 687         return 0;
 688 }
 689
 690 /*algorithm outline
 691  Without linking degenerates to getting single stream pos etc
 692  Without mmap 2nd loop degenerates to snd_pcm_period_elapsed
 693 */
 694 /*
 695 pcm_buf_dma_ofs=get_buf_pos(s);
 696 for_each_linked_stream(s) {
 697         pcm_buf_dma_ofs=get_buf_pos(s);
 698         min_buf_pos = modulo_min(min_buf_pos, pcm_buf_dma_ofs, buffer_bytes)
 699         new_data = min(new_data, calc_new_data(pcm_buf_dma_ofs,irq_pos)
 700 }
 701 timer.expires = jiffies + predict_next_period_ready(min_buf_pos);
 702 for_each_linked_stream(s) {
 703         s->pcm_buf_dma_ofs = min_buf_pos;
 704         if (new_data > period_bytes) {
 705                 if (mmap) {
 706                         irq_pos = (irq_pos + period_bytes) % buffer_bytes;
 707                         if (playback) {
 708                                 write(period_bytes);
 709                         } else {
 710                                 read(period_bytes);
 711                         }
 712                 }
 713                 snd_pcm_period_elapsed(s);
 714         }
 715 }
 716 */
 717
 718 /** Minimum of 2 modulo values.  Works correctly when the difference between
 719 * the values is less than half the modulus
 720 */
 721 static inline unsigned int modulo_min(unsigned int a, unsigned int b,
 722                                         unsigned long int modulus)
 723 {
 724         unsigned int result;
 725         if (((a-b) % modulus) < (modulus/2))
 726                 result = b;
 727         else
 728                 result = a;
 729
 730         return result;
 731 }
 732
 733 /** Timer function, equivalent to interrupt service routine for cards
 734 */
 735 static void snd_card_asihpi_timer_function(unsigned long data)
 736 {
 737         struct snd_card_asihpi_pcm *dpcm = (struct snd_card_asihpi_pcm *)data;
 738         struct snd_pcm_substream *substream = dpcm->substream;
 739         struct snd_card_asihpi *card = snd_pcm_substream_chip(substream);
 740         struct snd_pcm_runtime *runtime;
 741         struct snd_pcm_substream *s;
 742         unsigned int newdata = 0;
 743         unsigned int pcm_buf_dma_ofs, min_buf_pos = 0;
 744         unsigned int remdata, xfercount, next_jiffies;
 745         int first = 1;
 746         int loops = 0;
 747         u16 state;
 748         u32 buffer_size, bytes_avail, samples_played, on_card_bytes;
 749         char name[16];
 750
 751         snd_pcm_debug_name(substream, name, sizeof(name));
 752
 753         snd_printdd("%s snd_card_asihpi_timer_function\n", name);
 754
 755         /* find minimum newdata and buffer pos in group */
 756         snd_pcm_group_for_each_entry(s, substream) {
 757                 struct snd_card_asihpi_pcm *ds = s->runtime->private_data;
 758                 runtime = s->runtime;
 759
 760                 if (snd_pcm_substream_chip(s) != card)
 761                         continue;
 762
 763                 /* don't link Cap and Play */
 764                 if (substream->stream != s->stream)
 765                         continue;
 766
 767                 hpi_handle_error(hpi_stream_get_info_ex(
 768                                         ds->h_stream, &state,
 769                                         &buffer_size, &bytes_avail,
 770                                         &samples_played, &on_card_bytes));
 771
 772                 /* number of bytes in on-card buffer */
 773                 runtime->delay = on_card_bytes;
 774
 775                 if (!card->can_dma)
 776                         on_card_bytes = bytes_avail;
 777
 778                 if (s->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 779                         pcm_buf_dma_ofs = ds->pcm_buf_host_rw_ofs - bytes_avail;
 780                         if (state == HPI_STATE_STOPPED) {
 781                                 if ((bytes_avail == 0) &&
 782                                     (on_card_bytes < ds->pcm_buf_host_rw_ofs)) {
 783                                         hpi_handle_error(hpi_stream_start(ds->h_stream));
 784                                         snd_printdd("P%d start\n", s->number);
 785                                         ds->drained_count = 0;
 786                                 }
 787                         } else if (state == HPI_STATE_DRAINED) {
 788                                 snd_printd(KERN_WARNING "P%d drained\n",
 789                                                 s->number);
 790                                 ds->drained_count++;
 791                                 if (ds->drained_count > 2) {
 792                                         snd_pcm_stop(s, SNDRV_PCM_STATE_XRUN);
 793                                         continue;
 794                                 }
 795                         } else {
 796                                 ds->drained_count = 0;
 797                         }
 798                 } else
 799                         pcm_buf_dma_ofs = bytes_avail + ds->pcm_buf_host_rw_ofs;
 800
 801                 if (first) {
 802                         /* can't statically init min when wrap is involved */
 803                         min_buf_pos = pcm_buf_dma_ofs;
 804                         newdata = (pcm_buf_dma_ofs - ds->pcm_buf_elapsed_dma_ofs) % ds->buffer_bytes;
 805                         first = 0;
 806                 } else {
 807                         min_buf_pos =
 808                                 modulo_min(min_buf_pos, pcm_buf_dma_ofs, UINT_MAX+1L);
 809                         newdata = min(
 810                                 (pcm_buf_dma_ofs - ds->pcm_buf_elapsed_dma_ofs) % ds->buffer_bytes,
 811                                 newdata);
 812                 }
 813
 814                 snd_printdd("hw_ptr 0x%04lX, appl_ptr 0x%04lX\n",
 815                         (unsigned long)frames_to_bytes(runtime,
 816                                                 runtime->status->hw_ptr),
 817                         (unsigned long)frames_to_bytes(runtime,
 818                                                 runtime->control->appl_ptr));
 819
 820                 snd_printdd("%d S=%d, "
 821                         "rw=0x%04X, dma=0x%04X, left=0x%04X, "
 822                         "aux=0x%04X space=0x%04X\n",
 823                         s->number, state,
 824                         ds->pcm_buf_host_rw_ofs, pcm_buf_dma_ofs,
 825                         (int)bytes_avail,
 826                         (int)on_card_bytes, buffer_size-bytes_avail);
 827                 loops++;
 828         }
 829         pcm_buf_dma_ofs = min_buf_pos;
 830
 831         remdata = newdata % dpcm->period_bytes;
 832         xfercount = newdata - remdata; /* a multiple of period_bytes */
 833         /* come back when on_card_bytes has decreased enough to allow
 834            write to happen, or when data has been consumed to make another
 835            period
 836         */
 837         if (xfercount && (on_card_bytes  > dpcm->period_bytes))
 838                 next_jiffies = ((on_card_bytes - dpcm->period_bytes) * HZ / dpcm->bytes_per_sec);
 839         else
 840                 next_jiffies = ((dpcm->period_bytes - remdata) * HZ / dpcm->bytes_per_sec);
 841
 842         next_jiffies = max(next_jiffies, 1U);
 843         dpcm->timer.expires = jiffies + next_jiffies;
 844         snd_printdd("jif %d buf pos 0x%04X newdata 0x%04X xfer 0x%04X\n",
 845                         next_jiffies, pcm_buf_dma_ofs, newdata, xfercount);
 846
 847         snd_pcm_group_for_each_entry(s, substream) {
 848                 struct snd_card_asihpi_pcm *ds = s->runtime->private_data;
 849
 850                 /* don't link Cap and Play */
 851                 if (substream->stream != s->stream)
 852                         continue;
 853
 854                 ds->pcm_buf_dma_ofs = pcm_buf_dma_ofs;
 855
 856                 if (xfercount &&
 857                         /* Limit use of on card fifo for playback */
 858                         ((on_card_bytes <= ds->period_bytes) ||
 859                         (s->stream == SNDRV_PCM_STREAM_CAPTURE)))
 860
 861                 {
 862
 863                         unsigned int buf_ofs = ds->pcm_buf_host_rw_ofs % ds->buffer_bytes;
 864                         unsigned int xfer1, xfer2;
 865                         char *pd = &s->runtime->dma_area[buf_ofs];
 866
 867                         if (card->can_dma) { /* buffer wrap is handled at lower level */
 868                                 xfer1 = xfercount;
 869                                 xfer2 = 0;
 870                         } else {
 871                                 xfer1 = min(xfercount, ds->buffer_bytes - buf_ofs);
 872                                 xfer2 = xfercount - xfer1;
 873                         }
 874
 875                         if (s->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 876                                 snd_printddd("P%d write1 0x%04X 0x%04X\n",
 877                                         s->number, xfer1, buf_ofs);
 878                                 hpi_handle_error(
 879                                         hpi_outstream_write_buf(
 880                                                 ds->h_stream, pd, xfer1,
 881                                                 &ds->format));
 882
 883                                 if (xfer2) {
 884                                         pd = s->runtime->dma_area;
 885
 886                                         snd_printddd("P%d write2 0x%04X 0x%04X\n",
 887                                                         s->number,
 888                                                         xfercount - xfer1, buf_ofs);
 889                                         hpi_handle_error(
 890                                                 hpi_outstream_write_buf(
 891                                                         ds->h_stream, pd,
 892                                                         xfercount - xfer1,
 893                                                         &ds->format));
 894                                 }
 895                         } else {
 896                                 snd_printddd("C%d read1 0x%04x\n",
 897                                         s->number, xfer1);
 898                                 hpi_handle_error(
 899                                         hpi_instream_read_buf(
 900                                                 ds->h_stream,
 901                                                 pd, xfer1));
 902                                 if (xfer2) {
 903                                         pd = s->runtime->dma_area;
 904                                         snd_printddd("C%d read2 0x%04x\n",
 905                                                 s->number, xfer2);
 906                                         hpi_handle_error(
 907                                                 hpi_instream_read_buf(
 908                                                         ds->h_stream,
 909                                                         pd, xfer2));
 910                                 }
 911                         }
 912                         ds->pcm_buf_host_rw_ofs = ds->pcm_buf_host_rw_ofs + xfercount;
 913                         ds->pcm_buf_elapsed_dma_ofs = pcm_buf_dma_ofs;
 914                         snd_pcm_period_elapsed(s);
 915                 }
 916         }
 917
 918         if (dpcm->respawn_timer)
 919                 add_timer(&dpcm->timer);
 920 }
 921
 922 /***************************** PLAYBACK OPS ****************/
 923 static int snd_card_asihpi_playback_ioctl(struct snd_pcm_substream *substream,
 924                                           unsigned int cmd, void *arg)
 925 {
 926         snd_printddd(KERN_INFO "P%d ioctl %d\n", substream->number, cmd);
 927         return snd_pcm_lib_ioctl(substream, cmd, arg);
 928 }
 929
 930 static int snd_card_asihpi_playback_prepare(struct snd_pcm_substream *
 931                                             substream)
 932 {
 933         struct snd_pcm_runtime *runtime = substream->runtime;
 934         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
 935
 936         snd_printdd("P%d prepare\n", substream->number);
 937
 938         hpi_handle_error(hpi_outstream_reset(dpcm->h_stream));
 939         dpcm->pcm_buf_host_rw_ofs = 0;
 940         dpcm->pcm_buf_dma_ofs = 0;
 941         dpcm->pcm_buf_elapsed_dma_ofs = 0;
 942         return 0;
 943 }
 944
 945 static snd_pcm_uframes_t
 946 snd_card_asihpi_playback_pointer(struct snd_pcm_substream *substream)
 947 {
 948         struct snd_pcm_runtime *runtime = substream->runtime;
 949         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
 950         snd_pcm_uframes_t ptr;
 951
 952         ptr = bytes_to_frames(runtime, dpcm->pcm_buf_dma_ofs  % dpcm->buffer_bytes);
 953         snd_printddd("P%d pointer = 0x%04lx\n", substream->number, (unsigned long)ptr);
 954         return ptr;
 955 }
 956
 957 static void snd_card_asihpi_playback_format(struct snd_card_asihpi *asihpi,
 958                                                 u32 h_stream,
 959                                                 struct snd_pcm_hardware *pcmhw)
 960 {
 961         struct hpi_format hpi_format;
 962         u16 format;
 963         u16 err;
 964         u32 h_control;
 965         u32 sample_rate = 48000;
 966
 967         /* on cards without SRC, must query at valid rate,
 968         * maybe set by external sync
 969         */
 970         err = hpi_mixer_get_control(asihpi->h_mixer,
 971                                   HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
 972                                   HPI_CONTROL_SAMPLECLOCK, &h_control);
 973
 974         if (!err)
 975                 err = hpi_sample_clock_get_sample_rate(h_control,
 976                                 &sample_rate);
 977
 978         for (format = HPI_FORMAT_PCM8_UNSIGNED;
 979              format <= HPI_FORMAT_PCM24_SIGNED; format++) {
 980                 err = hpi_format_create(&hpi_format,
 981                                         2, format, sample_rate, 128000, 0);
 982                 if (!err)
 983                         err = hpi_outstream_query_format(h_stream,
 984                                                         &hpi_format);
 985                 if (!err && (hpi_to_alsa_formats[format] != -1))
 986                         pcmhw->formats |=
 987                                 (1ULL << hpi_to_alsa_formats[format]);
 988         }
 989 }
 990
 991 static struct snd_pcm_hardware snd_card_asihpi_playback = {
 992         .channels_min = 1,
 993         .channels_max = 2,
 994         .buffer_bytes_max = BUFFER_BYTES_MAX,
 995         .period_bytes_min = PERIOD_BYTES_MIN,
 996         .period_bytes_max = BUFFER_BYTES_MAX / PERIODS_MIN,
 997         .periods_min = PERIODS_MIN,
 998         .periods_max = BUFFER_BYTES_MAX / PERIOD_BYTES_MIN,
 999         .fifo_size = 0,
1000 };
1001
1002 static int snd_card_asihpi_playback_open(struct snd_pcm_substream *substream)
1003 {
1004         struct snd_pcm_runtime *runtime = substream->runtime;
1005         struct snd_card_asihpi_pcm *dpcm;
1006         struct snd_card_asihpi *card = snd_pcm_substream_chip(substream);
1007         int err;
1008
1009         dpcm = kzalloc(sizeof(*dpcm), GFP_KERNEL);
1010         if (dpcm == NULL)
1011                 return -ENOMEM;
1012
1013         err =
1014             hpi_outstream_open(card->adapter_index,
1015                               substream->number, &dpcm->h_stream);
1016         hpi_handle_error(err);
1017         if (err)
1018                 kfree(dpcm);
1019         if (err == HPI_ERROR_OBJ_ALREADY_OPEN)
1020                 return -EBUSY;
1021         if (err)
1022                 return -EIO;
1023
1024         /*? also check ASI5000 samplerate source
1025             If external, only support external rate.
1026             If internal and other stream playing, can't switch
1027         */
1028
1029         init_timer(&dpcm->timer);
1030         dpcm->timer.data = (unsigned long) dpcm;
1031         dpcm->timer.function = snd_card_asihpi_timer_function;
1032         dpcm->substream = substream;
1033         runtime->private_data = dpcm;
1034         runtime->private_free = snd_card_asihpi_runtime_free;
1035
1036         snd_card_asihpi_playback.channels_max = card->out_max_chans;
1037         /*?snd_card_asihpi_playback.period_bytes_min =
1038         card->out_max_chans * 4096; */
1039
1040         snd_card_asihpi_playback_format(card, dpcm->h_stream,
1041                                         &snd_card_asihpi_playback);
1042
1043         snd_card_asihpi_pcm_samplerates(card,  &snd_card_asihpi_playback);
1044
1045         snd_card_asihpi_playback.info = SNDRV_PCM_INFO_INTERLEAVED |
1046                                         SNDRV_PCM_INFO_DOUBLE |
1047                                         SNDRV_PCM_INFO_BATCH |
1048                                         SNDRV_PCM_INFO_BLOCK_TRANSFER |
1049                                         SNDRV_PCM_INFO_PAUSE |
1050                                         SNDRV_PCM_INFO_MMAP |
1051                                         SNDRV_PCM_INFO_MMAP_VALID;
1052
1053         if (card->support_grouping)
1054                 snd_card_asihpi_playback.info |= SNDRV_PCM_INFO_SYNC_START;
1055
1056         /* struct is copied, so can create initializer dynamically */
1057         runtime->hw = snd_card_asihpi_playback;
1058
1059         if (card->can_dma)
1060                 err = snd_pcm_hw_constraint_pow2(runtime, 0,
1061                                         SNDRV_PCM_HW_PARAM_BUFFER_BYTES);
1062         if (err < 0)
1063                 return err;
1064
1065         snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
1066                 card->update_interval_frames);
1067
1068         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
1069                 card->update_interval_frames * 2, UINT_MAX);
1070
1071         snd_pcm_set_sync(substream);
1072
1073         snd_printdd("playback open\n");
1074
1075         return 0;
1076 }
1077
1078 static int snd_card_asihpi_playback_close(struct snd_pcm_substream *substream)
1079 {
1080         struct snd_pcm_runtime *runtime = substream->runtime;
1081         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
1082
1083         hpi_handle_error(hpi_outstream_close(dpcm->h_stream));
1084         snd_printdd("playback close\n");
1085
1086         return 0;
1087 }
1088
1089 static struct snd_pcm_ops snd_card_asihpi_playback_mmap_ops = {
1090         .open = snd_card_asihpi_playback_open,
1091         .close = snd_card_asihpi_playback_close,
1092         .ioctl = snd_card_asihpi_playback_ioctl,
1093         .hw_params = snd_card_asihpi_pcm_hw_params,
1094         .hw_free = snd_card_asihpi_hw_free,
1095         .prepare = snd_card_asihpi_playback_prepare,
1096         .trigger = snd_card_asihpi_trigger,
1097         .pointer = snd_card_asihpi_playback_pointer,
1098 };
1099
1100 /***************************** CAPTURE OPS ****************/
1101 static snd_pcm_uframes_t
1102 snd_card_asihpi_capture_pointer(struct snd_pcm_substream *substream)
1103 {
1104         struct snd_pcm_runtime *runtime = substream->runtime;
1105         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
1106
1107         snd_printddd("capture pointer %d=%d\n",
1108                         substream->number, dpcm->pcm_buf_dma_ofs);
1109         /* NOTE Unlike playback can't use actual samples_played
1110                 for the capture position, because those samples aren't yet in
1111                 the local buffer available for reading.
1112         */
1113         return bytes_to_frames(runtime, dpcm->pcm_buf_dma_ofs % dpcm->buffer_bytes);
1114 }
1115
1116 static int snd_card_asihpi_capture_ioctl(struct snd_pcm_substream *substream,
1117                                          unsigned int cmd, void *arg)
1118 {
1119         return snd_pcm_lib_ioctl(substream, cmd, arg);
1120 }
1121
1122 static int snd_card_asihpi_capture_prepare(struct snd_pcm_substream *substream)
1123 {
1124         struct snd_pcm_runtime *runtime = substream->runtime;
1125         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
1126
1127         hpi_handle_error(hpi_instream_reset(dpcm->h_stream));
1128         dpcm->pcm_buf_host_rw_ofs = 0;
1129         dpcm->pcm_buf_dma_ofs = 0;
1130         dpcm->pcm_buf_elapsed_dma_ofs = 0;
1131
1132         snd_printdd("Capture Prepare %d\n", substream->number);
1133         return 0;
1134 }
1135
1136
1137
1138 static void snd_card_asihpi_capture_format(struct snd_card_asihpi *asihpi,
1139                                         u32 h_stream,
1140                                          struct snd_pcm_hardware *pcmhw)
1141 {
1142   struct hpi_format hpi_format;
1143         u16 format;
1144         u16 err;
1145         u32 h_control;
1146         u32 sample_rate = 48000;
1147
1148         /* on cards without SRC, must query at valid rate,
1149                 maybe set by external sync */
1150         err = hpi_mixer_get_control(asihpi->h_mixer,
1151                                   HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
1152                                   HPI_CONTROL_SAMPLECLOCK, &h_control);
1153
1154         if (!err)
1155                 err = hpi_sample_clock_get_sample_rate(h_control,
1156                         &sample_rate);
1157
1158         for (format = HPI_FORMAT_PCM8_UNSIGNED;
1159                 format <= HPI_FORMAT_PCM24_SIGNED; format++) {
1160
1161                 err = hpi_format_create(&hpi_format, 2, format,
1162                                 sample_rate, 128000, 0);
1163                 if (!err)
1164                         err = hpi_instream_query_format(h_stream,
1165                                             &hpi_format);
1166                 if (!err)
1167                         pcmhw->formats |=
1168                                 (1ULL << hpi_to_alsa_formats[format]);
1169         }
1170 }
1171
1172
1173 static struct snd_pcm_hardware snd_card_asihpi_capture = {
1174         .channels_min = 1,
1175         .channels_max = 2,
1176         .buffer_bytes_max = BUFFER_BYTES_MAX,
1177         .period_bytes_min = PERIOD_BYTES_MIN,
1178         .period_bytes_max = BUFFER_BYTES_MAX / PERIODS_MIN,
1179         .periods_min = PERIODS_MIN,
1180         .periods_max = BUFFER_BYTES_MAX / PERIOD_BYTES_MIN,
1181         .fifo_size = 0,
1182 };
1183
1184 static int snd_card_asihpi_capture_open(struct snd_pcm_substream *substream)
1185 {
1186         struct snd_pcm_runtime *runtime = substream->runtime;
1187         struct snd_card_asihpi *card = snd_pcm_substream_chip(substream);
1188         struct snd_card_asihpi_pcm *dpcm;
1189         int err;
1190
1191         dpcm = kzalloc(sizeof(*dpcm), GFP_KERNEL);
1192         if (dpcm == NULL)
1193                 return -ENOMEM;
1194
1195         snd_printdd("capture open adapter %d stream %d\n",
1196                    card->adapter_index, substream->number);
1197
1198         err = hpi_handle_error(
1199             hpi_instream_open(card->adapter_index,
1200                              substream->number, &dpcm->h_stream));
1201         if (err)
1202                 kfree(dpcm);
1203         if (err == HPI_ERROR_OBJ_ALREADY_OPEN)
1204                 return -EBUSY;
1205         if (err)
1206                 return -EIO;
1207
1208
1209         init_timer(&dpcm->timer);
1210         dpcm->timer.data = (unsigned long) dpcm;
1211         dpcm->timer.function = snd_card_asihpi_timer_function;
1212         dpcm->substream = substream;
1213         runtime->private_data = dpcm;
1214         runtime->private_free = snd_card_asihpi_runtime_free;
1215
1216         snd_card_asihpi_capture.channels_max = card->in_max_chans;
1217         snd_card_asihpi_capture_format(card, dpcm->h_stream,
1218                                        &snd_card_asihpi_capture);
1219         snd_card_asihpi_pcm_samplerates(card,  &snd_card_asihpi_capture);
1220         snd_card_asihpi_capture.info = SNDRV_PCM_INFO_INTERLEAVED |
1221                                         SNDRV_PCM_INFO_MMAP |
1222                                         SNDRV_PCM_INFO_MMAP_VALID;
1223
1224         if (card->support_grouping)
1225                 snd_card_asihpi_capture.info |= SNDRV_PCM_INFO_SYNC_START;
1226
1227         runtime->hw = snd_card_asihpi_capture;
1228
1229         if (card->can_dma)
1230                 err = snd_pcm_hw_constraint_pow2(runtime, 0,
1231                                         SNDRV_PCM_HW_PARAM_BUFFER_BYTES);
1232         if (err < 0)
1233                 return err;
1234
1235         snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
1236                 card->update_interval_frames);
1237         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
1238                 card->update_interval_frames * 2, UINT_MAX);
1239
1240         snd_pcm_set_sync(substream);
1241
1242         return 0;
1243 }
1244
1245 static int snd_card_asihpi_capture_close(struct snd_pcm_substream *substream)
1246 {
1247         struct snd_card_asihpi_pcm *dpcm = substream->runtime->private_data;
1248
1249         hpi_handle_error(hpi_instream_close(dpcm->h_stream));
1250         return 0;
1251 }
1252
1253 static struct snd_pcm_ops snd_card_asihpi_capture_mmap_ops = {
1254         .open = snd_card_asihpi_capture_open,
1255         .close = snd_card_asihpi_capture_close,
1256         .ioctl = snd_card_asihpi_capture_ioctl,
1257         .hw_params = snd_card_asihpi_pcm_hw_params,
1258         .hw_free = snd_card_asihpi_hw_free,
1259         .prepare = snd_card_asihpi_capture_prepare,
1260         .trigger = snd_card_asihpi_trigger,
1261         .pointer = snd_card_asihpi_capture_pointer,
1262 };
1263
1264 static int __devinit snd_card_asihpi_pcm_new(struct snd_card_asihpi *asihpi,
1265                                       int device, int substreams)
1266 {
1267         struct snd_pcm *pcm;
1268         int err;
1269
1270         err = snd_pcm_new(asihpi->card, "Asihpi PCM", device,
1271                          asihpi->num_outstreams, asihpi->num_instreams,
1272                          &pcm);
1273         if (err < 0)
1274                 return err;
1275         /* pointer to ops struct is stored, dont change ops afterwards! */
1276                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1277                                 &snd_card_asihpi_playback_mmap_ops);
1278                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
1279                                 &snd_card_asihpi_capture_mmap_ops);
1280
1281         pcm->private_data = asihpi;
1282         pcm->info_flags = 0;
1283         strcpy(pcm->name, "Asihpi PCM");
1284
1285         /*? do we want to emulate MMAP for non-BBM cards?
1286         Jack doesn't work with ALSAs MMAP emulation - WHY NOT? */
1287         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1288                                                 snd_dma_pci_data(asihpi->pci),
1289                                                 64*1024, BUFFER_BYTES_MAX);
1290
1291         return 0;
1292 }
1293
1294 /***************************** MIXER CONTROLS ****************/
1295 struct hpi_control {
1296         u32 h_control;
1297         u16 control_type;
1298         u16 src_node_type;
1299         u16 src_node_index;
1300         u16 dst_node_type;
1301         u16 dst_node_index;
1302         u16 band;
1303         char name[44]; /* copied to snd_ctl_elem_id.name[44]; */
1304 };
1305
1306 static const char * const asihpi_tuner_band_names[] = {
1307         "invalid",
1308         "AM",
1309         "FM mono",
1310         "TV NTSC-M",
1311         "FM stereo",
1312         "AUX",
1313         "TV PAL BG",
1314         "TV PAL I",
1315         "TV PAL DK",
1316         "TV SECAM",
1317 };
1318
1319 compile_time_assert(
1320         (ARRAY_SIZE(asihpi_tuner_band_names) ==
1321                 (HPI_TUNER_BAND_LAST+1)),
1322         assert_tuner_band_names_size);
1323
1324 static const char * const asihpi_src_names[] = {
1325         "no source",
1326         "PCM",
1327         "Line",
1328         "Digital",
1329         "Tuner",
1330         "RF",
1331         "Clock",
1332         "Bitstream",
1333         "Microphone",
1334         "Cobranet",
1335         "Analog",
1336         "Adapter",
1337 };
1338
1339 compile_time_assert(
1340         (ARRAY_SIZE(asihpi_src_names) ==
1341                 (HPI_SOURCENODE_LAST_INDEX-HPI_SOURCENODE_NONE+1)),
1342         assert_src_names_size);
1343
1344 static const char * const asihpi_dst_names[] = {
1345         "no destination",
1346         "PCM",
1347         "Line",
1348         "Digital",
1349         "RF",
1350         "Speaker",
1351         "Cobranet Out",
1352         "Analog"
1353 };
1354
1355 compile_time_assert(
1356         (ARRAY_SIZE(asihpi_dst_names) ==
1357                 (HPI_DESTNODE_LAST_INDEX-HPI_DESTNODE_NONE+1)),
1358         assert_dst_names_size);
1359
1360 static inline int ctl_add(struct snd_card *card, struct snd_kcontrol_new *ctl,
1361                                 struct snd_card_asihpi *asihpi)
1362 {
1363         int err;
1364
1365         err = snd_ctl_add(card, snd_ctl_new1(ctl, asihpi));
1366         if (err < 0)
1367                 return err;
1368         else if (mixer_dump)
1369                 snd_printk(KERN_INFO "added %s(%d)\n", ctl->name, ctl->index);
1370
1371         return 0;
1372 }
1373
1374 /* Convert HPI control name and location into ALSA control name */
1375 static void asihpi_ctl_init(struct snd_kcontrol_new *snd_control,
1376                                 struct hpi_control *hpi_ctl,
1377                                 char *name)
1378 {
1379         char *dir;
1380         memset(snd_control, 0, sizeof(*snd_control));
1381         snd_control->name = hpi_ctl->name;
1382         snd_control->private_value = hpi_ctl->h_control;
1383         snd_control->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1384         snd_control->index = 0;
1385
1386         if (hpi_ctl->src_node_type + HPI_SOURCENODE_NONE == HPI_SOURCENODE_CLOCK_SOURCE)
1387                 dir = ""; /* clock is neither capture nor playback */
1388         else if (hpi_ctl->dst_node_type + HPI_DESTNODE_NONE == HPI_DESTNODE_ISTREAM)
1389                 dir = "Capture ";  /* On or towards a PCM capture destination*/
1390         else if ((hpi_ctl->src_node_type + HPI_SOURCENODE_NONE != HPI_SOURCENODE_OSTREAM) &&
1391                 (!hpi_ctl->dst_node_type))
1392                 dir = "Capture "; /* On a source node that is not PCM playback */
1393         else if (hpi_ctl->src_node_type &&
1394                 (hpi_ctl->src_node_type + HPI_SOURCENODE_NONE != HPI_SOURCENODE_OSTREAM) &&
1395                 (hpi_ctl->dst_node_type))
1396                 dir = "Monitor Playback "; /* Between an input and an output */
1397         else
1398                 dir = "Playback "; /* PCM Playback source, or  output node */
1399
1400         if (hpi_ctl->src_node_type && hpi_ctl->dst_node_type)
1401                 sprintf(hpi_ctl->name, "%s %d %s %d %s%s",
1402                         asihpi_src_names[hpi_ctl->src_node_type],
1403                         hpi_ctl->src_node_index,
1404                         asihpi_dst_names[hpi_ctl->dst_node_type],
1405                         hpi_ctl->dst_node_index,
1406                         dir, name);
1407         else if (hpi_ctl->dst_node_type) {
1408                 sprintf(hpi_ctl->name, "%s %d %s%s",
1409                 asihpi_dst_names[hpi_ctl->dst_node_type],
1410                 hpi_ctl->dst_node_index,
1411                 dir, name);
1412         } else {
1413                 sprintf(hpi_ctl->name, "%s %d %s%s",
1414                 asihpi_src_names[hpi_ctl->src_node_type],
1415                 hpi_ctl->src_node_index,
1416                 dir, name);
1417         }
1418         /* printk(KERN_INFO "Adding %s %d to %d ",  hpi_ctl->name,
1419                 hpi_ctl->wSrcNodeType, hpi_ctl->wDstNodeType); */
1420 }
1421
1422 /*------------------------------------------------------------
1423    Volume controls
1424  ------------------------------------------------------------*/
1425 #define VOL_STEP_mB 1
1426 static int snd_asihpi_volume_info(struct snd_kcontrol *kcontrol,
1427                                   struct snd_ctl_elem_info *uinfo)
1428 {
1429         u32 h_control = kcontrol->private_value;
1430         u16 err;
1431         /* native gains are in millibels */
1432         short min_gain_mB;
1433         short max_gain_mB;
1434         short step_gain_mB;
1435
1436         err = hpi_volume_query_range(h_control,
1437                         &min_gain_mB, &max_gain_mB, &step_gain_mB);
1438         if (err) {
1439                 max_gain_mB = 0;
1440                 min_gain_mB = -10000;
1441                 step_gain_mB = VOL_STEP_mB;
1442         }
1443
1444         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1445         uinfo->count = 2;
1446         uinfo->value.integer.min = min_gain_mB / VOL_STEP_mB;
1447         uinfo->value.integer.max = max_gain_mB / VOL_STEP_mB;
1448         uinfo->value.integer.step = step_gain_mB / VOL_STEP_mB;
1449         return 0;
1450 }
1451
1452 static int snd_asihpi_volume_get(struct snd_kcontrol *kcontrol,
1453                                  struct snd_ctl_elem_value *ucontrol)
1454 {
1455         u32 h_control = kcontrol->private_value;
1456         short an_gain_mB[HPI_MAX_CHANNELS];
1457
1458         hpi_handle_error(hpi_volume_get_gain(h_control, an_gain_mB));
1459         ucontrol->value.integer.value[0] = an_gain_mB[0] / VOL_STEP_mB;
1460         ucontrol->value.integer.value[1] = an_gain_mB[1] / VOL_STEP_mB;
1461
1462         return 0;
1463 }
1464
1465 static int snd_asihpi_volume_put(struct snd_kcontrol *kcontrol,
1466                                  struct snd_ctl_elem_value *ucontrol)
1467 {
1468         int change;
1469         u32 h_control = kcontrol->private_value;
1470         short an_gain_mB[HPI_MAX_CHANNELS];
1471
1472         an_gain_mB[0] =
1473             (ucontrol->value.integer.value[0]) * VOL_STEP_mB;
1474         an_gain_mB[1] =
1475             (ucontrol->value.integer.value[1]) * VOL_STEP_mB;
1476         /*  change = asihpi->mixer_volume[addr][0] != left ||
1477            asihpi->mixer_volume[addr][1] != right;
1478          */
1479         change = 1;
1480         hpi_handle_error(hpi_volume_set_gain(h_control, an_gain_mB));
1481         return change;
1482 }
1483
1484 static const DECLARE_TLV_DB_SCALE(db_scale_100, -10000, VOL_STEP_mB, 0);
1485
1486 static int __devinit snd_asihpi_volume_add(struct snd_card_asihpi *asihpi,
1487                                         struct hpi_control *hpi_ctl)
1488 {
1489         struct snd_card *card = asihpi->card;
1490         struct snd_kcontrol_new snd_control;
1491
1492         asihpi_ctl_init(&snd_control, hpi_ctl, "Volume");
1493         snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
1494                                 SNDRV_CTL_ELEM_ACCESS_TLV_READ;
1495         snd_control.info = snd_asihpi_volume_info;
1496         snd_control.get = snd_asihpi_volume_get;
1497         snd_control.put = snd_asihpi_volume_put;
1498         snd_control.tlv.p = db_scale_100;
1499
1500         return ctl_add(card, &snd_control, asihpi);
1501 }
1502
1503 /*------------------------------------------------------------
1504    Level controls
1505  ------------------------------------------------------------*/
1506 static int snd_asihpi_level_info(struct snd_kcontrol *kcontrol,
1507                                  struct snd_ctl_elem_info *uinfo)
1508 {
1509         u32 h_control = kcontrol->private_value;
1510         u16 err;
1511         short min_gain_mB;
1512         short max_gain_mB;
1513         short step_gain_mB;
1514
1515         err =
1516             hpi_level_query_range(h_control, &min_gain_mB,
1517                                &max_gain_mB, &step_gain_mB);
1518         if (err) {
1519                 max_gain_mB = 2400;
1520                 min_gain_mB = -1000;
1521                 step_gain_mB = 100;
1522         }
1523
1524         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1525         uinfo->count = 2;
1526         uinfo->value.integer.min = min_gain_mB / HPI_UNITS_PER_dB;
1527         uinfo->value.integer.max = max_gain_mB / HPI_UNITS_PER_dB;
1528         uinfo->value.integer.step = step_gain_mB / HPI_UNITS_PER_dB;
1529         return 0;
1530 }
1531
1532 static int snd_asihpi_level_get(struct snd_kcontrol *kcontrol,
1533                                 struct snd_ctl_elem_value *ucontrol)
1534 {
1535         u32 h_control = kcontrol->private_value;
1536         short an_gain_mB[HPI_MAX_CHANNELS];
1537
1538         hpi_handle_error(hpi_level_get_gain(h_control, an_gain_mB));
1539         ucontrol->value.integer.value[0] =
1540             an_gain_mB[0] / HPI_UNITS_PER_dB;
1541         ucontrol->value.integer.value[1] =
1542             an_gain_mB[1] / HPI_UNITS_PER_dB;
1543
1544         return 0;
1545 }
1546
1547 static int snd_asihpi_level_put(struct snd_kcontrol *kcontrol,
1548                                 struct snd_ctl_elem_value *ucontrol)
1549 {
1550         int change;
1551         u32 h_control = kcontrol->private_value;
1552         short an_gain_mB[HPI_MAX_CHANNELS];
1553
1554         an_gain_mB[0] =
1555             (ucontrol->value.integer.value[0]) * HPI_UNITS_PER_dB;
1556         an_gain_mB[1] =
1557             (ucontrol->value.integer.value[1]) * HPI_UNITS_PER_dB;
1558         /*  change = asihpi->mixer_level[addr][0] != left ||
1559            asihpi->mixer_level[addr][1] != right;
1560          */
1561         change = 1;
1562         hpi_handle_error(hpi_level_set_gain(h_control, an_gain_mB));
1563         return change;
1564 }
1565
1566 static const DECLARE_TLV_DB_SCALE(db_scale_level, -1000, 100, 0);
1567
1568 static int __devinit snd_asihpi_level_add(struct snd_card_asihpi *asihpi,
1569                                         struct hpi_control *hpi_ctl)
1570 {
1571         struct snd_card *card = asihpi->card;
1572         struct snd_kcontrol_new snd_control;
1573
1574         /* can't use 'volume' cos some nodes have volume as well */
1575         asihpi_ctl_init(&snd_control, hpi_ctl, "Level");
1576         snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
1577                                 SNDRV_CTL_ELEM_ACCESS_TLV_READ;
1578         snd_control.info = snd_asihpi_level_info;
1579         snd_control.get = snd_asihpi_level_get;
1580         snd_control.put = snd_asihpi_level_put;
1581         snd_control.tlv.p = db_scale_level;
1582
1583         return ctl_add(card, &snd_control, asihpi);
1584 }
1585
1586 /*------------------------------------------------------------
1587    AESEBU controls
1588  ------------------------------------------------------------*/
1589
1590 /* AESEBU format */
1591 static const char * const asihpi_aesebu_format_names[] = {
1592         "N/A", "S/PDIF", "AES/EBU" };
1593
1594 static int snd_asihpi_aesebu_format_info(struct snd_kcontrol *kcontrol,
1595                                   struct snd_ctl_elem_info *uinfo)
1596 {
1597         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1598         uinfo->count = 1;
1599         uinfo->value.enumerated.items = 3;
1600
1601         if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
1602                 uinfo->value.enumerated.item =
1603                         uinfo->value.enumerated.items - 1;
1604
1605         strcpy(uinfo->value.enumerated.name,
1606                 asihpi_aesebu_format_names[uinfo->value.enumerated.item]);
1607
1608         return 0;
1609 }
1610
1611 static int snd_asihpi_aesebu_format_get(struct snd_kcontrol *kcontrol,
1612                         struct snd_ctl_elem_value *ucontrol,
1613                         u16 (*func)(u32, u16 *))
1614 {
1615         u32 h_control = kcontrol->private_value;
1616         u16 source, err;
1617
1618         err = func(h_control, &source);
1619
1620         /* default to N/A */
1621         ucontrol->value.enumerated.item[0] = 0;
1622         /* return success but set the control to N/A */
1623         if (err)
1624                 return 0;
1625         if (source == HPI_AESEBU_FORMAT_SPDIF)
1626                 ucontrol->value.enumerated.item[0] = 1;
1627         if (source == HPI_AESEBU_FORMAT_AESEBU)
1628                 ucontrol->value.enumerated.item[0] = 2;
1629
1630         return 0;
1631 }
1632
1633 static int snd_asihpi_aesebu_format_put(struct snd_kcontrol *kcontrol,
1634                         struct snd_ctl_elem_value *ucontrol,
1635                          u16 (*func)(u32, u16))
1636 {
1637         u32 h_control = kcontrol->private_value;
1638
1639         /* default to S/PDIF */
1640         u16 source = HPI_AESEBU_FORMAT_SPDIF;
1641
1642         if (ucontrol->value.enumerated.item[0] == 1)
1643                 source = HPI_AESEBU_FORMAT_SPDIF;
1644         if (ucontrol->value.enumerated.item[0] == 2)
1645                 source = HPI_AESEBU_FORMAT_AESEBU;
1646
1647         if (func(h_control, source) != 0)
1648                 return -EINVAL;
1649
1650         return 1;
1651 }
1652
1653 static int snd_asihpi_aesebu_rx_format_get(struct snd_kcontrol *kcontrol,
1654                                  struct snd_ctl_elem_value *ucontrol) {
1655         return snd_asihpi_aesebu_format_get(kcontrol, ucontrol,
1656                                         hpi_aesebu_receiver_get_format);
1657 }
1658
1659 static int snd_asihpi_aesebu_rx_format_put(struct snd_kcontrol *kcontrol,
1660                                  struct snd_ctl_elem_value *ucontrol) {
1661         return snd_asihpi_aesebu_format_put(kcontrol, ucontrol,
1662                                         hpi_aesebu_receiver_set_format);
1663 }
1664
1665 static int snd_asihpi_aesebu_rxstatus_info(struct snd_kcontrol *kcontrol,
1666                                   struct snd_ctl_elem_info *uinfo)
1667 {
1668         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1669         uinfo->count = 1;
1670
1671         uinfo->value.integer.min = 0;
1672         uinfo->value.integer.max = 0X1F;
1673         uinfo->value.integer.step = 1;
1674
1675         return 0;
1676 }
1677
1678 static int snd_asihpi_aesebu_rxstatus_get(struct snd_kcontrol *kcontrol,
1679                                  struct snd_ctl_elem_value *ucontrol) {
1680
1681         u32 h_control = kcontrol->private_value;
1682         u16 status;
1683
1684         hpi_handle_error(hpi_aesebu_receiver_get_error_status(
1685                                          h_control, &status));
1686         ucontrol->value.integer.value[0] = status;
1687         return 0;
1688 }
1689
1690 static int __devinit snd_asihpi_aesebu_rx_add(struct snd_card_asihpi *asihpi,
1691                                         struct hpi_control *hpi_ctl)
1692 {
1693         struct snd_card *card = asihpi->card;
1694         struct snd_kcontrol_new snd_control;
1695
1696         asihpi_ctl_init(&snd_control, hpi_ctl, "Format");
1697         snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
1698         snd_control.info = snd_asihpi_aesebu_format_info;
1699         snd_control.get = snd_asihpi_aesebu_rx_format_get;
1700         snd_control.put = snd_asihpi_aesebu_rx_format_put;
1701
1702
1703         if (ctl_add(card, &snd_control, asihpi) < 0)
1704                 return -EINVAL;
1705
1706         asihpi_ctl_init(&snd_control, hpi_ctl, "Status");
1707         snd_control.access =
1708             SNDRV_CTL_ELEM_ACCESS_VOLATILE | SNDRV_CTL_ELEM_ACCESS_READ;
1709         snd_control.info = snd_asihpi_aesebu_rxstatus_info;
1710         snd_control.get = snd_asihpi_aesebu_rxstatus_get;
1711
1712         return ctl_add(card, &snd_control, asihpi);
1713 }
1714
1715 static int snd_asihpi_aesebu_tx_format_get(struct snd_kcontrol *kcontrol,
1716                                  struct snd_ctl_elem_value *ucontrol) {
1717         return snd_asihpi_aesebu_format_get(kcontrol, ucontrol,
1718                                         hpi_aesebu_transmitter_get_format);
1719 }
1720
1721 static int snd_asihpi_aesebu_tx_format_put(struct snd_kcontrol *kcontrol,
1722                                  struct snd_ctl_elem_value *ucontrol) {
1723         return snd_asihpi_aesebu_format_put(kcontrol, ucontrol,
1724                                         hpi_aesebu_transmitter_set_format);
1725 }
1726
1727
1728 static int __devinit snd_asihpi_aesebu_tx_add(struct snd_card_asihpi *asihpi,
1729                                         struct hpi_control *hpi_ctl)
1730 {
1731         struct snd_card *card = asihpi->card;
1732         struct snd_kcontrol_new snd_control;
1733
1734         asihpi_ctl_init(&snd_control, hpi_ctl, "Format");
1735         snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
1736         snd_control.info = snd_asihpi_aesebu_format_info;
1737         snd_control.get = snd_asihpi_aesebu_tx_format_get;
1738         snd_control.put = snd_asihpi_aesebu_tx_format_put;
1739
1740         return ctl_add(card, &snd_control, asihpi);
1741 }
1742
1743 /*------------------------------------------------------------
1744    Tuner controls
1745  ------------------------------------------------------------*/
1746
1747 /* Gain */
1748
1749 static int snd_asihpi_tuner_gain_info(struct snd_kcontrol *kcontrol,
1750                                   struct snd_ctl_elem_info *uinfo)
1751 {
1752         u32 h_control = kcontrol->private_value;
1753         u16 err;
1754         short idx;
1755         u16 gain_range[3];
1756
1757         for (idx = 0; idx < 3; idx++) {
1758                 err = hpi_tuner_query_gain(h_control,
1759                                           idx, &gain_range[idx]);
1760                 if (err != 0)
1761                         return err;
1762         }
1763
1764         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1765         uinfo->count = 1;
1766         uinfo->value.integer.min = ((int)gain_range[0]) / HPI_UNITS_PER_dB;
1767         uinfo->value.integer.max = ((int)gain_range[1]) / HPI_UNITS_PER_dB;
1768         uinfo->value.integer.step = ((int) gain_range[2]) / HPI_UNITS_PER_dB;
1769         return 0;
1770 }
1771
1772 static int snd_asihpi_tuner_gain_get(struct snd_kcontrol *kcontrol,
1773                                  struct snd_ctl_elem_value *ucontrol)
1774 {
1775         /*
1776         struct snd_card_asihpi *asihpi = snd_kcontrol_chip(kcontrol);
1777         */
1778         u32 h_control = kcontrol->private_value;
1779         short gain;
1780
1781         hpi_handle_error(hpi_tuner_get_gain(h_control, &gain));
1782         ucontrol->value.integer.value[0] = gain / HPI_UNITS_PER_dB;
1783
1784         return 0;
1785 }
1786
1787 static int snd_asihpi_tuner_gain_put(struct snd_kcontrol *kcontrol,
1788                                  struct snd_ctl_elem_value *ucontrol)
1789 {
1790         /*
1791         struct snd_card_asihpi *asihpi = snd_kcontrol_chip(kcontrol);
1792         */
1793         u32 h_control = kcontrol->private_value;
1794         short gain;
1795
1796         gain = (ucontrol->value.integer.value[0]) * HPI_UNITS_PER_dB;
1797         hpi_handle_error(hpi_tuner_set_gain(h_control, gain));
1798
1799         return 1;
1800 }
1801
1802 /* Band  */
1803
1804 static int asihpi_tuner_band_query(struct snd_kcontrol *kcontrol,
1805                                         u16 *band_list, u32 len) {
1806         u32 h_control = kcontrol->private_value;
1807         u16 err = 0;
1808         u32 i;
1809
1810         for (i = 0; i < len; i++) {
1811                 err = hpi_tuner_query_band(
1812                                 h_control, i, &band_list[i]);
1813                 if (err != 0)
1814                         break;
1815         }
1816
1817         if (err && (err != HPI_ERROR_INVALID_OBJ_INDEX))
1818                 return -EIO;
1819
1820         return i;
1821 }
1822
1823 static int snd_asihpi_tuner_band_info(struct snd_kcontrol *kcontrol,
1824                                   struct snd_ctl_elem_info *uinfo)
1825 {
1826         u16 tuner_bands[HPI_TUNER_BAND_LAST];
1827         int num_bands = 0;
1828
1829         num_bands = asihpi_tuner_band_query(kcontrol, tuner_bands,
1830                                 HPI_TUNER_BAND_LAST);
1831
1832         if (num_bands < 0)
1833                 return num_bands;
1834
1835         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1836         uinfo->count = 1;
1837         uinfo->value.enumerated.items = num_bands;
1838
1839         if (num_bands > 0) {
1840                 if (uinfo->value.enumerated.item >=
1841                                         uinfo->value.enumerated.items)
1842                         uinfo->value.enumerated.item =
1843                                 uinfo->value.enumerated.items - 1;
1844
1845                 strcpy(uinfo->value.enumerated.name,
1846                         asihpi_tuner_band_names[
1847                                 tuner_bands[uinfo->value.enumerated.item]]);
1848
1849         }
1850         return 0;
1851 }
1852
1853 static int snd_asihpi_tuner_band_get(struct snd_kcontrol *kcontrol,
1854                                  struct snd_ctl_elem_value *ucontrol)
1855 {
1856         u32 h_control = kcontrol->private_value;
1857         /*
1858         struct snd_card_asihpi *asihpi = snd_kcontrol_chip(kcontrol);
1859         */
1860         u16 band, idx;
1861         u16 tuner_bands[HPI_TUNER_BAND_LAST];
1862         u32 num_bands = 0;
1863
1864         num_bands = asihpi_tuner_band_query(kcontrol, tuner_bands,
1865                                 HPI_TUNER_BAND_LAST);
1866
1867         hpi_handle_error(hpi_tuner_get_band(h_control, &band));
1868
1869         ucontrol->value.enumerated.item[0] = -1;
1870         for (idx = 0; idx < HPI_TUNER_BAND_LAST; idx++)
1871                 if (tuner_bands[idx] == band) {
1872                         ucontrol->value.enumerated.item[0] = idx;
1873                         break;
1874                 }
1875
1876         return 0;
1877 }
1878
1879 static int snd_asihpi_tuner_band_put(struct snd_kcontrol *kcontrol,
1880                                  struct snd_ctl_elem_value *ucontrol)
1881 {
1882         /*
1883         struct snd_card_asihpi *asihpi = snd_kcontrol_chip(kcontrol);
1884         */
1885         u32 h_control = kcontrol->private_value;
1886         u16 band;
1887         u16 tuner_bands[HPI_TUNER_BAND_LAST];
1888         u32 num_bands = 0;
1889
1890         num_bands = asihpi_tuner_band_query(kcontrol, tuner_bands,
1891                         HPI_TUNER_BAND_LAST);
1892
1893         band = tuner_bands[ucontrol->value.enumerated.item[0]];
1894         hpi_handle_error(hpi_tuner_set_band(h_control, band));
1895
1896         return 1;
1897 }
1898
1899 /* Freq */
1900
1901 static int snd_asihpi_tuner_freq_info(struct snd_kcontrol *kcontrol,
1902                                   struct snd_ctl_elem_info *uinfo)
1903 {
1904         u32 h_control = kcontrol->private_value;
1905         u16 err;
1906         u16 tuner_bands[HPI_TUNER_BAND_LAST];
1907         u16 num_bands = 0, band_iter, idx;
1908         u32 freq_range[3], temp_freq_range[3];
1909
1910         num_bands = asihpi_tuner_band_query(kcontrol, tuner_bands,
1911                         HPI_TUNER_BAND_LAST);
1912
1913         freq_range[0] = INT_MAX;
1914         freq_range[1] = 0;
1915         freq_range[2] = INT_MAX;
1916
1917         for (band_iter = 0; band_iter < num_bands; band_iter++) {
1918                 for (idx = 0; idx < 3; idx++) {
1919                         err = hpi_tuner_query_frequency(h_control,
1920                                 idx, tuner_bands[band_iter],
1921                                 &temp_freq_range[idx]);
1922                         if (err != 0)
1923                                 return err;
1924                 }
1925
1926                 /* skip band with bogus stepping */
1927                 if (temp_freq_range[2] <= 0)
1928                         continue;
1929
1930                 if (temp_freq_range[0] < freq_range[0])
1931                         freq_range[0] = temp_freq_range[0];
1932                 if (temp_freq_range[1] > freq_range[1])
1933                         freq_range[1] = temp_freq_range[1];
1934                 if (temp_freq_range[2] < freq_range[2])
1935                         freq_range[2] = temp_freq_range[2];
1936         }
1937
1938         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1939         uinfo->count = 1;
1940         uinfo->value.integer.min = ((int)freq_range[0]);
1941         uinfo->value.integer.max = ((int)freq_range[1]);
1942         uinfo->value.integer.step = ((int)freq_range[2]);
1943         return 0;
1944 }
1945
1946 static int snd_asihpi_tuner_freq_get(struct snd_kcontrol *kcontrol,
1947                                  struct snd_ctl_elem_value *ucontrol)
1948 {
1949         u32 h_control = kcontrol->private_value;
1950         u32 freq;
1951
1952         hpi_handle_error(hpi_tuner_get_frequency(h_control, &freq));
1953         ucontrol->value.integer.value[0] = freq;
1954
1955         return 0;
1956 }
1957
1958 static int snd_asihpi_tuner_freq_put(struct snd_kcontrol *kcontrol,
1959                                  struct snd_ctl_elem_value *ucontrol)
1960 {
1961         u32 h_control = kcontrol->private_value;
1962         u32 freq;
1963
1964         freq = ucontrol->value.integer.value[0];
1965         hpi_handle_error(hpi_tuner_set_frequency(h_control, freq));
1966
1967         return 1;
1968 }
1969
1970 /* Tuner control group initializer  */
1971 static int __devinit snd_asihpi_tuner_add(struct snd_card_asihpi *asihpi,
1972                                         struct hpi_control *hpi_ctl)
1973 {
1974         struct snd_card *card = asihpi->card;
1975         struct snd_kcontrol_new snd_control;
1976
1977         snd_control.private_value = hpi_ctl->h_control;
1978         snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
1979
1980         if (!hpi_tuner_get_gain(hpi_ctl->h_control, NULL)) {
1981                 asihpi_ctl_init(&snd_control, hpi_ctl, "Gain");
1982                 snd_control.info = snd_asihpi_tuner_gain_info;
1983                 snd_control.get = snd_asihpi_tuner_gain_get;
1984                 snd_control.put = snd_asihpi_tuner_gain_put;
1985
1986                 if (ctl_add(card, &snd_control, asihpi) < 0)
1987                         return -EINVAL;
1988         }
1989
1990         asihpi_ctl_init(&snd_control, hpi_ctl, "Band");
1991         snd_control.info = snd_asihpi_tuner_band_info;
1992         snd_control.get = snd_asihpi_tuner_band_get;
1993         snd_control.put = snd_asihpi_tuner_band_put;
1994
1995         if (ctl_add(card, &snd_control, asihpi) < 0)
1996                 return -EINVAL;
1997
1998         asihpi_ctl_init(&snd_control, hpi_ctl, "Freq");
1999         snd_control.info = snd_asihpi_tuner_freq_info;
2000         snd_control.get = snd_asihpi_tuner_freq_get;
2001         snd_control.put = snd_asihpi_tuner_freq_put;
2002
2003         return ctl_add(card, &snd_control, asihpi);
2004 }
2005
2006 /*------------------------------------------------------------
2007    Meter controls
2008  ------------------------------------------------------------*/
2009 static int snd_asihpi_meter_info(struct snd_kcontrol *kcontrol,
2010                                  struct snd_ctl_elem_info *uinfo)
2011 {
2012         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2013         uinfo->count = HPI_MAX_CHANNELS;
2014         uinfo->value.integer.min = 0;
2015         uinfo->value.integer.max = 0x7FFFFFFF;
2016         return 0;
2017 }
2018
2019 /* linear values for 10dB steps */
2020 static int log2lin[] = {
2021         0x7FFFFFFF, /* 0dB */
2022         679093956,
2023         214748365,
2024          67909396,
2025          21474837,
2026           6790940,
2027           2147484, /* -60dB */
2028            679094,
2029            214748, /* -80 */
2030             67909,
2031             21475, /* -100 */
2032              6791,
2033              2147,
2034               679,
2035               214,
2036                68,
2037                21,
2038                 7,
2039                 2
2040 };
2041
2042 static int snd_asihpi_meter_get(struct snd_kcontrol *kcontrol,
2043                                 struct snd_ctl_elem_value *ucontrol)
2044 {
2045         u32 h_control = kcontrol->private_value;
2046         short an_gain_mB[HPI_MAX_CHANNELS], i;
2047         u16 err;
2048
2049         err = hpi_meter_get_peak(h_control, an_gain_mB);
2050
2051         for (i = 0; i < HPI_MAX_CHANNELS; i++) {
2052                 if (err) {
2053                         ucontrol->value.integer.value[i] = 0;
2054                 } else if (an_gain_mB[i] >= 0) {
2055                         ucontrol->value.integer.value[i] =
2056                                 an_gain_mB[i] << 16;
2057                 } else {
2058                         /* -ve is log value in millibels < -60dB,
2059                         * convert to (roughly!) linear,
2060                         */
2061                         ucontrol->value.integer.value[i] =
2062                                         log2lin[an_gain_mB[i] / -1000];
2063                 }
2064         }
2065         return 0;
2066 }
2067
2068 static int __devinit snd_asihpi_meter_add(struct snd_card_asihpi *asihpi,
2069                                         struct hpi_control *hpi_ctl, int subidx)
2070 {
2071         struct snd_card *card = asihpi->card;
2072         struct snd_kcontrol_new snd_control;
2073
2074         asihpi_ctl_init(&snd_control, hpi_ctl, "Meter");
2075         snd_control.access =
2076             SNDRV_CTL_ELEM_ACCESS_VOLATILE | SNDRV_CTL_ELEM_ACCESS_READ;
2077         snd_control.info = snd_asihpi_meter_info;
2078         snd_control.get = snd_asihpi_meter_get;
2079
2080         snd_control.index = subidx;
2081
2082         return ctl_add(card, &snd_control, asihpi);
2083 }
2084
2085 /*------------------------------------------------------------
2086    Multiplexer controls
2087  ------------------------------------------------------------*/
2088 static int snd_card_asihpi_mux_count_sources(struct snd_kcontrol *snd_control)
2089 {
2090         u32 h_control = snd_control->private_value;
2091         struct hpi_control hpi_ctl;
2092         int s, err;
2093         for (s = 0; s < 32; s++) {
2094                 err = hpi_multiplexer_query_source(h_control, s,
2095                                                   &hpi_ctl.
2096                                                   src_node_type,
2097                                                   &hpi_ctl.
2098                                                   src_node_index);
2099                 if (err)
2100                         break;
2101         }
2102         return s;
2103 }
2104
2105 static int snd_asihpi_mux_info(struct snd_kcontrol *kcontrol,
2106                                struct snd_ctl_elem_info *uinfo)
2107 {
2108         int err;
2109         u16 src_node_type, src_node_index;
2110         u32 h_control = kcontrol->private_value;
2111
2112         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2113         uinfo->count = 1;
2114         uinfo->value.enumerated.items =
2115             snd_card_asihpi_mux_count_sources(kcontrol);
2116
2117         if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
2118                 uinfo->value.enumerated.item =
2119                     uinfo->value.enumerated.items - 1;
2120
2121         err =
2122             hpi_multiplexer_query_source(h_control,
2123                                         uinfo->value.enumerated.item,
2124                                         &src_node_type, &src_node_index);
2125
2126         sprintf(uinfo->value.enumerated.name, "%s %d",
2127                 asihpi_src_names[src_node_type - HPI_SOURCENODE_NONE],
2128                 src_node_index);
2129         return 0;
2130 }
2131
2132 static int snd_asihpi_mux_get(struct snd_kcontrol *kcontrol,
2133                               struct snd_ctl_elem_value *ucontrol)
2134 {
2135         u32 h_control = kcontrol->private_value;
2136         u16 source_type, source_index;
2137         u16 src_node_type, src_node_index;
2138         int s;
2139
2140         hpi_handle_error(hpi_multiplexer_get_source(h_control,
2141                                 &source_type, &source_index));
2142         /* Should cache this search result! */
2143         for (s = 0; s < 256; s++) {
2144                 if (hpi_multiplexer_query_source(h_control, s,
2145                                             &src_node_type, &src_node_index))
2146                         break;
2147
2148                 if ((source_type == src_node_type)
2149                     && (source_index == src_node_index)) {
2150                         ucontrol->value.enumerated.item[0] = s;
2151                         return 0;
2152                 }
2153         }
2154         snd_printd(KERN_WARNING
2155                 "Control %x failed to match mux source %hu %hu\n",
2156                 h_control, source_type, source_index);
2157         ucontrol->value.enumerated.item[0] = 0;
2158         return 0;
2159 }
2160
2161 static int snd_asihpi_mux_put(struct snd_kcontrol *kcontrol,
2162                               struct snd_ctl_elem_value *ucontrol)
2163 {
2164         int change;
2165         u32 h_control = kcontrol->private_value;
2166         u16 source_type, source_index;
2167         u16 e;
2168
2169         change = 1;
2170
2171         e = hpi_multiplexer_query_source(h_control,
2172                                     ucontrol->value.enumerated.item[0],
2173                                     &source_type, &source_index);
2174         if (!e)
2175                 hpi_handle_error(
2176                         hpi_multiplexer_set_source(h_control,
2177                                                 source_type, source_index));
2178         return change;
2179 }
2180
2181
2182 static int  __devinit snd_asihpi_mux_add(struct snd_card_asihpi *asihpi,
2183                                         struct hpi_control *hpi_ctl)
2184 {
2185         struct snd_card *card = asihpi->card;
2186         struct snd_kcontrol_new snd_control;
2187
2188         asihpi_ctl_init(&snd_control, hpi_ctl, "Route");
2189         snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
2190         snd_control.info = snd_asihpi_mux_info;
2191         snd_control.get = snd_asihpi_mux_get;
2192         snd_control.put = snd_asihpi_mux_put;
2193
2194         return ctl_add(card, &snd_control, asihpi);
2195
2196 }
2197
2198 /*------------------------------------------------------------
2199    Channel mode controls
2200  ------------------------------------------------------------*/
2201 static int snd_asihpi_cmode_info(struct snd_kcontrol *kcontrol,
2202                                  struct snd_ctl_elem_info *uinfo)
2203 {
2204         static const char * const mode_names[HPI_CHANNEL_MODE_LAST + 1] = {
2205                 "invalid",
2206                 "Normal", "Swap",
2207                 "From Left", "From Right",
2208                 "To Left", "To Right"
2209         };
2210
2211         u32 h_control = kcontrol->private_value;
2212         u16 mode;
2213         int i;
2214         u16 mode_map[6];
2215         int valid_modes = 0;
2216
2217         /* HPI channel mode values can be from 1 to 6
2218         Some adapters only support a contiguous subset
2219         */
2220         for (i = 0; i < HPI_CHANNEL_MODE_LAST; i++)
2221                 if (!hpi_channel_mode_query_mode(
2222                         h_control, i, &mode)) {
2223                         mode_map[valid_modes] = mode;
2224                         valid_modes++;
2225                         }
2226
2227         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2228         uinfo->count = 1;
2229         uinfo->value.enumerated.items = valid_modes;
2230
2231         if (uinfo->value.enumerated.item >= valid_modes)
2232                 uinfo->value.enumerated.item = valid_modes - 1;
2233
2234         strcpy(uinfo->value.enumerated.name,
2235                mode_names[mode_map[uinfo->value.enumerated.item]]);
2236
2237         return 0;
2238 }
2239
2240 static int snd_asihpi_cmode_get(struct snd_kcontrol *kcontrol,
2241                                 struct snd_ctl_elem_value *ucontrol)
2242 {
2243         u32 h_control = kcontrol->private_value;
2244         u16 mode;
2245
2246         if (hpi_channel_mode_get(h_control, &mode))
2247                 mode = 1;
2248
2249         ucontrol->value.enumerated.item[0] = mode - 1;
2250
2251         return 0;
2252 }
2253
2254 static int snd_asihpi_cmode_put(struct snd_kcontrol *kcontrol,
2255                                 struct snd_ctl_elem_value *ucontrol)
2256 {
2257         int change;
2258         u32 h_control = kcontrol->private_value;
2259
2260         change = 1;
2261
2262         hpi_handle_error(hpi_channel_mode_set(h_control,
2263                            ucontrol->value.enumerated.item[0] + 1));
2264         return change;
2265 }
2266
2267
2268 static int __devinit snd_asihpi_cmode_add(struct snd_card_asihpi *asihpi,
2269                                         struct hpi_control *hpi_ctl)
2270 {
2271         struct snd_card *card = asihpi->card;
2272         struct snd_kcontrol_new snd_control;
2273
2274         asihpi_ctl_init(&snd_control, hpi_ctl, "Mode");
2275         snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
2276         snd_control.info = snd_asihpi_cmode_info;
2277         snd_control.get = snd_asihpi_cmode_get;
2278         snd_control.put = snd_asihpi_cmode_put;
2279
2280         return ctl_add(card, &snd_control, asihpi);
2281 }
2282
2283 /*------------------------------------------------------------
2284    Sampleclock source  controls
2285  ------------------------------------------------------------*/
2286 static char *sampleclock_sources[MAX_CLOCKSOURCES] = {
2287         "N/A", "Local PLL", "Digital Sync", "Word External", "Word Header",
2288         "SMPTE", "Digital1", "Auto", "Network", "Invalid",
2289         "Prev Module",
2290         "Digital2", "Digital3", "Digital4", "Digital5",
2291         "Digital6", "Digital7", "Digital8"};
2292
2293 static int snd_asihpi_clksrc_info(struct snd_kcontrol *kcontrol,
2294                                   struct snd_ctl_elem_info *uinfo)
2295 {
2296         struct snd_card_asihpi *asihpi =
2297                         (struct snd_card_asihpi *)(kcontrol->private_data);
2298         struct clk_cache *clkcache = &asihpi->cc;
2299         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2300         uinfo->count = 1;
2301         uinfo->value.enumerated.items = clkcache->count;
2302
2303         if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
2304                 uinfo->value.enumerated.item =
2305                                 uinfo->value.enumerated.items - 1;
2306
2307         strcpy(uinfo->value.enumerated.name,
2308                clkcache->s[uinfo->value.enumerated.item].name);
2309         return 0;
2310 }
2311
2312 static int snd_asihpi_clksrc_get(struct snd_kcontrol *kcontrol,
2313                                  struct snd_ctl_elem_value *ucontrol)
2314 {
2315         struct snd_card_asihpi *asihpi =
2316                         (struct snd_card_asihpi *)(kcontrol->private_data);
2317         struct clk_cache *clkcache = &asihpi->cc;
2318         u32 h_control = kcontrol->private_value;
2319         u16 source, srcindex = 0;
2320         int i;
2321
2322         ucontrol->value.enumerated.item[0] = 0;
2323         if (hpi_sample_clock_get_source(h_control, &source))
2324                 source = 0;
2325
2326         if (source == HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT)
2327                 if (hpi_sample_clock_get_source_index(h_control, &srcindex))
2328                         srcindex = 0;
2329
2330         for (i = 0; i < clkcache->count; i++)
2331                 if ((clkcache->s[i].source == source) &&
2332                         (clkcache->s[i].index == srcindex))
2333                         break;
2334
2335         ucontrol->value.enumerated.item[0] = i;
2336
2337         return 0;
2338 }
2339
2340 static int snd_asihpi_clksrc_put(struct snd_kcontrol *kcontrol,
2341                                  struct snd_ctl_elem_value *ucontrol)
2342 {
2343         struct snd_card_asihpi *asihpi =
2344                         (struct snd_card_asihpi *)(kcontrol->private_data);
2345         struct clk_cache *clkcache = &asihpi->cc;
2346         int change, item;
2347         u32 h_control = kcontrol->private_value;
2348
2349         change = 1;
2350         item = ucontrol->value.enumerated.item[0];
2351         if (item >= clkcache->count)
2352                 item = clkcache->count-1;
2353
2354         hpi_handle_error(hpi_sample_clock_set_source(
2355                                 h_control, clkcache->s[item].source));
2356
2357         if (clkcache->s[item].source == HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT)
2358                 hpi_handle_error(hpi_sample_clock_set_source_index(
2359                                 h_control, clkcache->s[item].index));
2360         return change;
2361 }
2362
2363 /*------------------------------------------------------------
2364    Clkrate controls
2365  ------------------------------------------------------------*/
2366 /* Need to change this to enumerated control with list of rates */
2367 static int snd_asihpi_clklocal_info(struct snd_kcontrol *kcontrol,
2368                                    struct snd_ctl_elem_info *uinfo)
2369 {
2370         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2371         uinfo->count = 1;
2372         uinfo->value.integer.min = 8000;
2373         uinfo->value.integer.max = 192000;
2374         uinfo->value.integer.step = 100;
2375
2376         return 0;
2377 }
2378
2379 static int snd_asihpi_clklocal_get(struct snd_kcontrol *kcontrol,
2380                                   struct snd_ctl_elem_value *ucontrol)
2381 {
2382         u32 h_control = kcontrol->private_value;
2383         u32 rate;
2384         u16 e;
2385
2386         e = hpi_sample_clock_get_local_rate(h_control, &rate);
2387         if (!e)
2388                 ucontrol->value.integer.value[0] = rate;
2389         else
2390                 ucontrol->value.integer.value[0] = 0;
2391         return 0;
2392 }
2393
2394 static int snd_asihpi_clklocal_put(struct snd_kcontrol *kcontrol,
2395                                   struct snd_ctl_elem_value *ucontrol)
2396 {
2397         int change;
2398         u32 h_control = kcontrol->private_value;
2399
2400         /*  change = asihpi->mixer_clkrate[addr][0] != left ||
2401            asihpi->mixer_clkrate[addr][1] != right;
2402          */
2403         change = 1;
2404         hpi_handle_error(hpi_sample_clock_set_local_rate(h_control,
2405                                       ucontrol->value.integer.value[0]));
2406         return change;
2407 }
2408
2409 static int snd_asihpi_clkrate_info(struct snd_kcontrol *kcontrol,
2410                                    struct snd_ctl_elem_info *uinfo)
2411 {
2412         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2413         uinfo->count = 1;
2414         uinfo->value.integer.min = 8000;
2415         uinfo->value.integer.max = 192000;
2416         uinfo->value.integer.step = 100;
2417
2418         return 0;
2419 }
2420
2421 static int snd_asihpi_clkrate_get(struct snd_kcontrol *kcontrol,
2422                                   struct snd_ctl_elem_value *ucontrol)
2423 {
2424         u32 h_control = kcontrol->private_value;
2425         u32 rate;
2426         u16 e;
2427
2428         e = hpi_sample_clock_get_sample_rate(h_control, &rate);
2429         if (!e)
2430                 ucontrol->value.integer.value[0] = rate;
2431         else
2432                 ucontrol->value.integer.value[0] = 0;
2433         return 0;
2434 }
2435
2436 static int __devinit snd_asihpi_sampleclock_add(struct snd_card_asihpi *asihpi,
2437                                         struct hpi_control *hpi_ctl)
2438 {
2439         struct snd_card *card = asihpi->card;
2440         struct snd_kcontrol_new snd_control;
2441
2442         struct clk_cache *clkcache = &asihpi->cc;
2443         u32 hSC =  hpi_ctl->h_control;
2444         int has_aes_in = 0;
2445         int i, j;
2446         u16 source;
2447
2448         snd_control.private_value = hpi_ctl->h_control;
2449
2450         clkcache->has_local = 0;
2451
2452         for (i = 0; i <= HPI_SAMPLECLOCK_SOURCE_LAST; i++) {
2453                 if  (hpi_sample_clock_query_source(hSC,
2454                                 i, &source))
2455                         break;
2456                 clkcache->s[i].source = source;
2457                 clkcache->s[i].index = 0;
2458                 clkcache->s[i].name = sampleclock_sources[source];
2459                 if (source == HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT)
2460                         has_aes_in = 1;
2461                 if (source == HPI_SAMPLECLOCK_SOURCE_LOCAL)
2462                         clkcache->has_local = 1;
2463         }
2464         if (has_aes_in)
2465                 /* already will have picked up index 0 above */
2466                 for (j = 1; j < 8; j++) {
2467                         if (hpi_sample_clock_query_source_index(hSC,
2468                                 j, HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT,
2469                                 &source))
2470                                 break;
2471                         clkcache->s[i].source =
2472                                 HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT;
2473                         clkcache->s[i].index = j;
2474                         clkcache->s[i].name = sampleclock_sources[
2475                                         j+HPI_SAMPLECLOCK_SOURCE_LAST];
2476                         i++;
2477                 }
2478         clkcache->count = i;
2479
2480         asihpi_ctl_init(&snd_control, hpi_ctl, "Source");
2481         snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE ;
2482         snd_control.info = snd_asihpi_clksrc_info;
2483         snd_control.get = snd_asihpi_clksrc_get;
2484         snd_control.put = snd_asihpi_clksrc_put;
2485         if (ctl_add(card, &snd_control, asihpi) < 0)
2486                 return -EINVAL;
2487
2488
2489         if (clkcache->has_local) {
2490                 asihpi_ctl_init(&snd_control, hpi_ctl, "Localrate");
2491                 snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE ;
2492                 snd_control.info = snd_asihpi_clklocal_info;
2493                 snd_control.get = snd_asihpi_clklocal_get;
2494                 snd_control.put = snd_asihpi_clklocal_put;
2495
2496
2497                 if (ctl_add(card, &snd_control, asihpi) < 0)
2498                         return -EINVAL;
2499         }
2500
2501         asihpi_ctl_init(&snd_control, hpi_ctl, "Rate");
2502         snd_control.access =
2503             SNDRV_CTL_ELEM_ACCESS_VOLATILE | SNDRV_CTL_ELEM_ACCESS_READ;
2504         snd_control.info = snd_asihpi_clkrate_info;
2505         snd_control.get = snd_asihpi_clkrate_get;
2506
2507         return ctl_add(card, &snd_control, asihpi);
2508 }
2509 /*------------------------------------------------------------
2510    Mixer
2511  ------------------------------------------------------------*/
2512
2513 static int __devinit snd_card_asihpi_mixer_new(struct snd_card_asihpi *asihpi)
2514 {
2515         struct snd_card *card = asihpi->card;
2516         unsigned int idx = 0;
2517         unsigned int subindex = 0;
2518         int err;
2519         struct hpi_control hpi_ctl, prev_ctl;
2520
2521         if (snd_BUG_ON(!asihpi))
2522                 return -EINVAL;
2523         strcpy(card->mixername, "Asihpi Mixer");
2524
2525         err =
2526             hpi_mixer_open(asihpi->adapter_index,
2527                           &asihpi->h_mixer);
2528         hpi_handle_error(err);
2529         if (err)
2530                 return -err;
2531
2532         memset(&prev_ctl, 0, sizeof(prev_ctl));
2533         prev_ctl.control_type = -1;
2534
2535         for (idx = 0; idx < 2000; idx++) {
2536                 err = hpi_mixer_get_control_by_index(
2537                                 asihpi->h_mixer,
2538                                 idx,
2539                                 &hpi_ctl.src_node_type,
2540                                 &hpi_ctl.src_node_index,
2541                                 &hpi_ctl.dst_node_type,
2542                                 &hpi_ctl.dst_node_index,
2543                                 &hpi_ctl.control_type,
2544                                 &hpi_ctl.h_control);
2545                 if (err) {
2546                         if (err == HPI_ERROR_CONTROL_DISABLED) {
2547                                 if (mixer_dump)
2548                                         snd_printk(KERN_INFO
2549                                                    "Disabled HPI Control(%d)\n",
2550                                                    idx);
2551                                 continue;
2552                         } else
2553                                 break;
2554
2555                 }
2556
2557                 hpi_ctl.src_node_type -= HPI_SOURCENODE_NONE;
2558                 hpi_ctl.dst_node_type -= HPI_DESTNODE_NONE;
2559
2560                 /* ASI50xx in SSX mode has multiple meters on the same node.
2561                    Use subindex to create distinct ALSA controls
2562                    for any duplicated controls.
2563                 */
2564                 if ((hpi_ctl.control_type == prev_ctl.control_type) &&
2565                     (hpi_ctl.src_node_type == prev_ctl.src_node_type) &&
2566                     (hpi_ctl.src_node_index == prev_ctl.src_node_index) &&
2567                     (hpi_ctl.dst_node_type == prev_ctl.dst_node_type) &&
2568                     (hpi_ctl.dst_node_index == prev_ctl.dst_node_index))
2569                         subindex++;
2570                 else
2571                         subindex = 0;
2572
2573                 prev_ctl = hpi_ctl;
2574
2575                 switch (hpi_ctl.control_type) {
2576                 case HPI_CONTROL_VOLUME:
2577                         err = snd_asihpi_volume_add(asihpi, &hpi_ctl);
2578                         break;
2579                 case HPI_CONTROL_LEVEL:
2580                         err = snd_asihpi_level_add(asihpi, &hpi_ctl);
2581                         break;
2582                 case HPI_CONTROL_MULTIPLEXER:
2583                         err = snd_asihpi_mux_add(asihpi, &hpi_ctl);
2584                         break;
2585                 case HPI_CONTROL_CHANNEL_MODE:
2586                         err = snd_asihpi_cmode_add(asihpi, &hpi_ctl);
2587                         break;
2588                 case HPI_CONTROL_METER:
2589                         err = snd_asihpi_meter_add(asihpi, &hpi_ctl, subindex);
2590                         break;
2591                 case HPI_CONTROL_SAMPLECLOCK:
2592                         err = snd_asihpi_sampleclock_add(
2593                                                 asihpi, &hpi_ctl);
2594                         break;
2595                 case HPI_CONTROL_CONNECTION:    /* ignore these */
2596                         continue;
2597                 case HPI_CONTROL_TUNER:
2598                         err = snd_asihpi_tuner_add(asihpi, &hpi_ctl);
2599                         break;
2600                 case HPI_CONTROL_AESEBU_TRANSMITTER:
2601                         err = snd_asihpi_aesebu_tx_add(asihpi, &hpi_ctl);
2602                         break;
2603                 case HPI_CONTROL_AESEBU_RECEIVER:
2604                         err = snd_asihpi_aesebu_rx_add(asihpi, &hpi_ctl);
2605                         break;
2606                 case HPI_CONTROL_VOX:
2607                 case HPI_CONTROL_BITSTREAM:
2608                 case HPI_CONTROL_MICROPHONE:
2609                 case HPI_CONTROL_PARAMETRIC_EQ:
2610                 case HPI_CONTROL_COMPANDER:
2611                 default:
2612                         if (mixer_dump)
2613                                 snd_printk(KERN_INFO
2614                                         "Untranslated HPI Control"
2615                                         "(%d) %d %d %d %d %d\n",
2616                                         idx,
2617                                         hpi_ctl.control_type,
2618                                         hpi_ctl.src_node_type,
2619                                         hpi_ctl.src_node_index,
2620                                         hpi_ctl.dst_node_type,
2621                                         hpi_ctl.dst_node_index);
2622                         continue;
2623                 };
2624                 if (err < 0)
2625                         return err;
2626         }
2627         if (HPI_ERROR_INVALID_OBJ_INDEX != err)
2628                 hpi_handle_error(err);
2629
2630         snd_printk(KERN_INFO "%d mixer controls found\n", idx);
2631
2632         return 0;
2633 }
2634
2635 /*------------------------------------------------------------
2636    /proc interface
2637  ------------------------------------------------------------*/
2638
2639 static void
2640 snd_asihpi_proc_read(struct snd_info_entry *entry,
2641                         struct snd_info_buffer *buffer)
2642 {
2643         struct snd_card_asihpi *asihpi = entry->private_data;
2644         u16 version;
2645         u32 h_control;
2646         u32 rate = 0;
2647         u16 source = 0;
2648         int err;
2649
2650         snd_iprintf(buffer, "ASIHPI driver proc file\n");
2651         snd_iprintf(buffer,
2652                 "adapter ID=%4X\n_index=%d\n"
2653                 "num_outstreams=%d\n_num_instreams=%d\n",
2654                 asihpi->type, asihpi->adapter_index,
2655                 asihpi->num_outstreams, asihpi->num_instreams);
2656
2657         version = asihpi->version;
2658         snd_iprintf(buffer,
2659                 "serial#=%d\n_hw version %c%d\nDSP code version %03d\n",
2660                 asihpi->serial_number, ((version >> 3) & 0xf) + 'A',
2661                 version & 0x7,
2662                 ((version >> 13) * 100) + ((version >> 7) & 0x3f));
2663
2664         err = hpi_mixer_get_control(asihpi->h_mixer,
2665                                   HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
2666                                   HPI_CONTROL_SAMPLECLOCK, &h_control);
2667
2668         if (!err) {
2669                 err = hpi_sample_clock_get_sample_rate(
2670                                         h_control, &rate);
2671                 err += hpi_sample_clock_get_source(h_control, &source);
2672
2673                 if (!err)
2674                         snd_iprintf(buffer, "sample_clock=%d_hz, source %s\n",
2675                         rate, sampleclock_sources[source]);
2676         }
2677
2678 }
2679
2680
2681 static void __devinit snd_asihpi_proc_init(struct snd_card_asihpi *asihpi)
2682 {
2683         struct snd_info_entry *entry;
2684
2685         if (!snd_card_proc_new(asihpi->card, "info", &entry))
2686                 snd_info_set_text_ops(entry, asihpi, snd_asihpi_proc_read);
2687 }
2688
2689 /*------------------------------------------------------------
2690    HWDEP
2691  ------------------------------------------------------------*/
2692
2693 static int snd_asihpi_hpi_open(struct snd_hwdep *hw, struct file *file)
2694 {
2695         if (enable_hpi_hwdep)
2696                 return 0;
2697         else
2698                 return -ENODEV;
2699
2700 }
2701
2702 static int snd_asihpi_hpi_release(struct snd_hwdep *hw, struct file *file)
2703 {
2704         if (enable_hpi_hwdep)
2705                 return asihpi_hpi_release(file);
2706         else
2707                 return -ENODEV;
2708 }
2709
2710 static int snd_asihpi_hpi_ioctl(struct snd_hwdep *hw, struct file *file,
2711                                 unsigned int cmd, unsigned long arg)
2712 {
2713         if (enable_hpi_hwdep)
2714                 return asihpi_hpi_ioctl(file, cmd, arg);
2715         else
2716                 return -ENODEV;
2717 }
2718
2719
2720 /* results in /dev/snd/hwC#D0 file for each card with index #
2721    also /proc/asound/hwdep will contain '#-00: asihpi (HPI) for each card'
2722 */
2723 static int __devinit snd_asihpi_hpi_new(struct snd_card_asihpi *asihpi,
2724         int device, struct snd_hwdep **rhwdep)
2725 {
2726         struct snd_hwdep *hw;
2727         int err;
2728
2729         if (rhwdep)
2730                 *rhwdep = NULL;
2731         err = snd_hwdep_new(asihpi->card, "HPI", device, &hw);
2732         if (err < 0)
2733                 return err;
2734         strcpy(hw->name, "asihpi (HPI)");
2735         hw->iface = SNDRV_HWDEP_IFACE_LAST;
2736         hw->ops.open = snd_asihpi_hpi_open;
2737         hw->ops.ioctl = snd_asihpi_hpi_ioctl;
2738         hw->ops.release = snd_asihpi_hpi_release;
2739         hw->private_data = asihpi;
2740         if (rhwdep)
2741                 *rhwdep = hw;
2742         return 0;
2743 }
2744
2745 /*------------------------------------------------------------
2746    CARD
2747  ------------------------------------------------------------*/
2748 static int __devinit snd_asihpi_probe(struct pci_dev *pci_dev,
2749                                        const struct pci_device_id *pci_id)
2750 {
2751         int err;
2752
2753         u16 version;
2754         int pcm_substreams;
2755
2756         struct hpi_adapter *hpi_card;
2757         struct snd_card *card;
2758         struct snd_card_asihpi *asihpi;
2759
2760         u32 h_control;
2761         u32 h_stream;
2762
2763         static int dev;
2764         if (dev >= SNDRV_CARDS)
2765                 return -ENODEV;
2766
2767         /* Should this be enable[hpi_card->index] ? */
2768         if (!enable[dev]) {
2769                 dev++;
2770                 return -ENOENT;
2771         }
2772
2773         err = asihpi_adapter_probe(pci_dev, pci_id);
2774         if (err < 0)
2775                 return err;
2776
2777         hpi_card = pci_get_drvdata(pci_dev);
2778         /* first try to give the card the same index as its hardware index */
2779         err = snd_card_create(hpi_card->index,
2780                               id[hpi_card->index], THIS_MODULE,
2781                               sizeof(struct snd_card_asihpi),
2782                               &card);
2783         if (err < 0) {
2784                 /* if that fails, try the default index==next available */
2785                 err =
2786                     snd_card_create(index[dev], id[dev],
2787                                     THIS_MODULE,
2788                                     sizeof(struct snd_card_asihpi),
2789                                     &card);
2790                 if (err < 0)
2791                         return err;
2792                 snd_printk(KERN_WARNING
2793                         "**** WARNING **** Adapter index %d->ALSA index %d\n",
2794                         hpi_card->index, card->number);
2795         }
2796
2797         snd_card_set_dev(card, &pci_dev->dev);
2798
2799         asihpi = (struct snd_card_asihpi *) card->private_data;
2800         asihpi->card = card;
2801         asihpi->pci = pci_dev;
2802         asihpi->adapter_index = hpi_card->index;
2803         hpi_handle_error(hpi_adapter_get_info(
2804                                  asihpi->adapter_index,
2805                                  &asihpi->num_outstreams,
2806                                  &asihpi->num_instreams,
2807                                  &asihpi->version,
2808                                  &asihpi->serial_number, &asihpi->type));
2809
2810         version = asihpi->version;
2811         snd_printk(KERN_INFO "adapter ID=%4X index=%d num_outstreams=%d "
2812                         "num_instreams=%d S/N=%d\n"
2813                         "Hw Version %c%d DSP code version %03d\n",
2814                         asihpi->type, asihpi->adapter_index,
2815                         asihpi->num_outstreams,
2816                         asihpi->num_instreams, asihpi->serial_number,
2817                         ((version >> 3) & 0xf) + 'A',
2818                         version & 0x7,
2819                         ((version >> 13) * 100) + ((version >> 7) & 0x3f));
2820
2821         pcm_substreams = asihpi->num_outstreams;
2822         if (pcm_substreams < asihpi->num_instreams)
2823                 pcm_substreams = asihpi->num_instreams;
2824
2825         err = hpi_adapter_get_property(asihpi->adapter_index,
2826                 HPI_ADAPTER_PROPERTY_CAPS1,
2827                 NULL, &asihpi->support_grouping);
2828         if (err)
2829                 asihpi->support_grouping = 0;
2830
2831         err = hpi_adapter_get_property(asihpi->adapter_index,
2832                 HPI_ADAPTER_PROPERTY_CAPS2,
2833                 &asihpi->support_mrx, NULL);
2834         if (err)
2835                 asihpi->support_mrx = 0;
2836
2837         err = hpi_adapter_get_property(asihpi->adapter_index,
2838                 HPI_ADAPTER_PROPERTY_INTERVAL,
2839                 NULL, &asihpi->update_interval_frames);
2840         if (err)
2841                 asihpi->update_interval_frames = 512;
2842
2843         if (!asihpi->can_dma)
2844                 asihpi->update_interval_frames *= 2;
2845
2846         hpi_handle_error(hpi_instream_open(asihpi->adapter_index,
2847                              0, &h_stream));
2848
2849         err = hpi_instream_host_buffer_free(h_stream);
2850         asihpi->can_dma = (!err);
2851
2852         hpi_handle_error(hpi_instream_close(h_stream));
2853
2854         err = hpi_adapter_get_property(asihpi->adapter_index,
2855                 HPI_ADAPTER_PROPERTY_CURCHANNELS,
2856                 &asihpi->in_max_chans, &asihpi->out_max_chans);
2857         if (err) {
2858                 asihpi->in_max_chans = 2;
2859                 asihpi->out_max_chans = 2;
2860         }
2861
2862         snd_printk(KERN_INFO "has dma:%d, grouping:%d, mrx:%d\n",
2863                         asihpi->can_dma,
2864                         asihpi->support_grouping,
2865                         asihpi->support_mrx
2866               );
2867
2868         err = snd_card_asihpi_pcm_new(asihpi, 0, pcm_substreams);
2869         if (err < 0) {
2870                 snd_printk(KERN_ERR "pcm_new failed\n");
2871                 goto __nodev;
2872         }
2873         err = snd_card_asihpi_mixer_new(asihpi);
2874         if (err < 0) {
2875                 snd_printk(KERN_ERR "mixer_new failed\n");
2876                 goto __nodev;
2877         }
2878
2879         err = hpi_mixer_get_control(asihpi->h_mixer,
2880                                   HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
2881                                   HPI_CONTROL_SAMPLECLOCK, &h_control);
2882
2883         if (!err)
2884                 err = hpi_sample_clock_set_local_rate(
2885                         h_control, adapter_fs);
2886
2887         snd_asihpi_proc_init(asihpi);
2888
2889         /* always create, can be enabled or disabled dynamically
2890             by enable_hwdep  module param*/
2891         snd_asihpi_hpi_new(asihpi, 0, NULL);
2892
2893         strcpy(card->driver, "ASIHPI");
2894
2895         sprintf(card->shortname, "AudioScience ASI%4X", asihpi->type);
2896         sprintf(card->longname, "%s %i",
2897                         card->shortname, asihpi->adapter_index);
2898         err = snd_card_register(card);
2899
2900         if (!err) {
2901                 hpi_card->snd_card_asihpi = card;
2902                 dev++;
2903                 return 0;
2904         }
2905 __nodev:
2906         snd_card_free(card);
2907         snd_printk(KERN_ERR "snd_asihpi_probe error %d\n", err);
2908         return err;
2909
2910 }
2911
2912 static void __devexit snd_asihpi_remove(struct pci_dev *pci_dev)
2913 {
2914         struct hpi_adapter *hpi_card = pci_get_drvdata(pci_dev);
2915
2916         snd_card_free(hpi_card->snd_card_asihpi);
2917         hpi_card->snd_card_asihpi = NULL;
2918         asihpi_adapter_remove(pci_dev);
2919 }
2920
2921 static DEFINE_PCI_DEVICE_TABLE(asihpi_pci_tbl) = {
2922         {HPI_PCI_VENDOR_ID_TI, HPI_PCI_DEV_ID_DSP6205,
2923                 HPI_PCI_VENDOR_ID_AUDIOSCIENCE, PCI_ANY_ID, 0, 0,
2924                 (kernel_ulong_t)HPI_6205},
2925         {HPI_PCI_VENDOR_ID_TI, HPI_PCI_DEV_ID_PCI2040,
2926                 HPI_PCI_VENDOR_ID_AUDIOSCIENCE, PCI_ANY_ID, 0, 0,
2927                 (kernel_ulong_t)HPI_6000},
2928         {0,}
2929 };
2930 MODULE_DEVICE_TABLE(pci, asihpi_pci_tbl);
2931
2932 static struct pci_driver driver = {
2933         .name = KBUILD_MODNAME,
2934         .id_table = asihpi_pci_tbl,
2935         .probe = snd_asihpi_probe,
2936         .remove = __devexit_p(snd_asihpi_remove),
2937 #ifdef CONFIG_PM
2938 /*      .suspend = snd_asihpi_suspend,
2939         .resume = snd_asihpi_resume, */
2940 #endif
2941 };
2942
2943 static int __init snd_asihpi_init(void)
2944 {
2945         asihpi_init();
2946         return pci_register_driver(&driver);
2947 }
2948
2949 static void __exit snd_asihpi_exit(void)
2950 {
2951
2952         pci_unregister_driver(&driver);
2953         asihpi_exit();
2954 }
2955
2956 module_init(snd_asihpi_init)
2957 module_exit(snd_asihpi_exit)
2958