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 "hpi_version.h"
  27 #include "hpimsginit.h"
  28 #include "hpioctl.h"
  29 #include "hpicmn.h"
  30
  31
  32 #include <linux/pci.h>
  33 #include <linux/init.h>
  34 #include <linux/jiffies.h>
  35 #include <linux/slab.h>
  36 #include <linux/time.h>
  37 #include <linux/wait.h>
  38 #include <linux/module.h>
  39 #include <sound/core.h>
  40 #include <sound/control.h>
  41 #include <sound/pcm.h>
  42 #include <sound/pcm_params.h>
  43 #include <sound/info.h>
  44 #include <sound/initval.h>
  45 #include <sound/tlv.h>
  46 #include <sound/hwdep.h>
  47
  48 MODULE_LICENSE("GPL");
  49 MODULE_AUTHOR("AudioScience inc. <support@audioscience.com>");
  50 MODULE_DESCRIPTION("AudioScience ALSA ASI5000 ASI6000 ASI87xx ASI89xx "
  51                         HPI_VER_STRING);
  52
  53 #if defined CONFIG_SND_DEBUG_VERBOSE
  54 /**
  55  * snd_printddd - very verbose debug printk
  56  * @format: format string
  57  *
  58  * Works like snd_printk() for debugging purposes.
  59  * Ignored when CONFIG_SND_DEBUG_VERBOSE is not set.
  60  * Must set snd module debug parameter to 3 to enable at runtime.
  61  */
  62 #define snd_printddd(format, args...) \
  63         __snd_printk(3, __FILE__, __LINE__, format, ##args)
  64 #else
  65 #define snd_printddd(format, args...) do { } while (0)
  66 #endif
  67
  68 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* index 0-MAX */
  69 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  70 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
  71 static bool enable_hpi_hwdep = 1;
  72
  73 module_param_array(index, int, NULL, S_IRUGO);
  74 MODULE_PARM_DESC(index, "ALSA index value for AudioScience soundcard.");
  75
  76 module_param_array(id, charp, NULL, S_IRUGO);
  77 MODULE_PARM_DESC(id, "ALSA ID string for AudioScience soundcard.");
  78
  79 module_param_array(enable, bool, NULL, S_IRUGO);
  80 MODULE_PARM_DESC(enable, "ALSA enable AudioScience soundcard.");
  81
  82 module_param(enable_hpi_hwdep, bool, S_IRUGO|S_IWUSR);
  83 MODULE_PARM_DESC(enable_hpi_hwdep,
  84                 "ALSA enable HPI hwdep for AudioScience soundcard ");
  85
  86 /* identify driver */
  87 #ifdef KERNEL_ALSA_BUILD
  88 static char *build_info = "Built using headers from kernel source";
  89 module_param(build_info, charp, S_IRUGO);
  90 MODULE_PARM_DESC(build_info, "built using headers from kernel source");
  91 #else
  92 static char *build_info = "Built within ALSA source";
  93 module_param(build_info, charp, S_IRUGO);
  94 MODULE_PARM_DESC(build_info, "built within ALSA source");
  95 #endif
  96
  97 /* set to 1 to dump every control from adapter to log */
  98 static const int mixer_dump;
  99
 100 #define DEFAULT_SAMPLERATE 44100
 101 static int adapter_fs = DEFAULT_SAMPLERATE;
 102
 103 /* defaults */
 104 #define PERIODS_MIN 2
 105 #define PERIOD_BYTES_MIN  2048
 106 #define BUFFER_BYTES_MAX (512 * 1024)
 107
 108 #define MAX_CLOCKSOURCES (HPI_SAMPLECLOCK_SOURCE_LAST + 1 + 7)
 109
 110 struct clk_source {
 111         int source;
 112         int index;
 113         char *name;
 114 };
 115
 116 struct clk_cache {
 117         int count;
 118         int has_local;
 119         struct clk_source s[MAX_CLOCKSOURCES];
 120 };
 121
 122 /* Per card data */
 123 struct snd_card_asihpi {
 124         struct snd_card *card;
 125         struct pci_dev *pci;
 126         struct hpi_adapter *hpi;
 127
 128         u32 h_mixer;
 129         struct clk_cache cc;
 130
 131         u16 can_dma;
 132         u16 support_grouping;
 133         u16 support_mrx;
 134         u16 update_interval_frames;
 135         u16 in_max_chans;
 136         u16 out_max_chans;
 137         u16 in_min_chans;
 138         u16 out_min_chans;
 139 };
 140
 141 /* Per stream data */
 142 struct snd_card_asihpi_pcm {
 143         struct timer_list timer;
 144         unsigned int respawn_timer;
 145         unsigned int hpi_buffer_attached;
 146         unsigned int buffer_bytes;
 147         unsigned int period_bytes;
 148         unsigned int bytes_per_sec;
 149         unsigned int pcm_buf_host_rw_ofs; /* Host R/W pos */
 150         unsigned int pcm_buf_dma_ofs;   /* DMA R/W offset in buffer */
 151         unsigned int pcm_buf_elapsed_dma_ofs;   /* DMA R/W offset in buffer */
 152         unsigned int drained_count;
 153         struct snd_pcm_substream *substream;
 154         u32 h_stream;
 155         struct hpi_format format;
 156 };
 157
 158 /* universal stream verbs work with out or in stream handles */
 159
 160 /* Functions to allow driver to give a buffer to HPI for busmastering */
 161
 162 static u16 hpi_stream_host_buffer_attach(
 163         u32 h_stream,   /* handle to outstream. */
 164         u32 size_in_bytes, /* size in bytes of bus mastering buffer */
 165         u32 pci_address
 166 )
 167 {
 168         struct hpi_message hm;
 169         struct hpi_response hr;
 170         unsigned int obj = hpi_handle_object(h_stream);
 171
 172         if (!h_stream)
 173                 return HPI_ERROR_INVALID_OBJ;
 174         hpi_init_message_response(&hm, &hr, obj,
 175                         obj == HPI_OBJ_OSTREAM ?
 176                                 HPI_OSTREAM_HOSTBUFFER_ALLOC :
 177                                 HPI_ISTREAM_HOSTBUFFER_ALLOC);
 178
 179         hpi_handle_to_indexes(h_stream, &hm.adapter_index,
 180                                 &hm.obj_index);
 181
 182         hm.u.d.u.buffer.buffer_size = size_in_bytes;
 183         hm.u.d.u.buffer.pci_address = pci_address;
 184         hm.u.d.u.buffer.command = HPI_BUFFER_CMD_INTERNAL_GRANTADAPTER;
 185         hpi_send_recv(&hm, &hr);
 186         return hr.error;
 187 }
 188
 189 static u16 hpi_stream_host_buffer_detach(u32  h_stream)
 190 {
 191         struct hpi_message hm;
 192         struct hpi_response hr;
 193         unsigned int obj = hpi_handle_object(h_stream);
 194
 195         if (!h_stream)
 196                 return HPI_ERROR_INVALID_OBJ;
 197
 198         hpi_init_message_response(&hm, &hr,  obj,
 199                         obj == HPI_OBJ_OSTREAM ?
 200                                 HPI_OSTREAM_HOSTBUFFER_FREE :
 201                                 HPI_ISTREAM_HOSTBUFFER_FREE);
 202
 203         hpi_handle_to_indexes(h_stream, &hm.adapter_index,
 204                                 &hm.obj_index);
 205         hm.u.d.u.buffer.command = HPI_BUFFER_CMD_INTERNAL_REVOKEADAPTER;
 206         hpi_send_recv(&hm, &hr);
 207         return hr.error;
 208 }
 209
 210 static inline u16 hpi_stream_start(u32 h_stream)
 211 {
 212         if (hpi_handle_object(h_stream) ==  HPI_OBJ_OSTREAM)
 213                 return hpi_outstream_start(h_stream);
 214         else
 215                 return hpi_instream_start(h_stream);
 216 }
 217
 218 static inline u16 hpi_stream_stop(u32 h_stream)
 219 {
 220         if (hpi_handle_object(h_stream) ==  HPI_OBJ_OSTREAM)
 221                 return hpi_outstream_stop(h_stream);
 222         else
 223                 return hpi_instream_stop(h_stream);
 224 }
 225
 226 static inline u16 hpi_stream_get_info_ex(
 227     u32 h_stream,
 228     u16        *pw_state,
 229     u32        *pbuffer_size,
 230     u32        *pdata_in_buffer,
 231     u32        *psample_count,
 232     u32        *pauxiliary_data
 233 )
 234 {
 235         u16 e;
 236         if (hpi_handle_object(h_stream)  ==  HPI_OBJ_OSTREAM)
 237                 e = hpi_outstream_get_info_ex(h_stream, pw_state,
 238                                         pbuffer_size, pdata_in_buffer,
 239                                         psample_count, pauxiliary_data);
 240         else
 241                 e = hpi_instream_get_info_ex(h_stream, pw_state,
 242                                         pbuffer_size, pdata_in_buffer,
 243                                         psample_count, pauxiliary_data);
 244         return e;
 245 }
 246
 247 static inline u16 hpi_stream_group_add(
 248                                         u32 h_master,
 249                                         u32 h_stream)
 250 {
 251         if (hpi_handle_object(h_master) ==  HPI_OBJ_OSTREAM)
 252                 return hpi_outstream_group_add(h_master, h_stream);
 253         else
 254                 return hpi_instream_group_add(h_master, h_stream);
 255 }
 256
 257 static inline u16 hpi_stream_group_reset(u32 h_stream)
 258 {
 259         if (hpi_handle_object(h_stream) ==  HPI_OBJ_OSTREAM)
 260                 return hpi_outstream_group_reset(h_stream);
 261         else
 262                 return hpi_instream_group_reset(h_stream);
 263 }
 264
 265 static inline u16 hpi_stream_group_get_map(
 266                                 u32 h_stream, u32 *mo, u32 *mi)
 267 {
 268         if (hpi_handle_object(h_stream) ==  HPI_OBJ_OSTREAM)
 269                 return hpi_outstream_group_get_map(h_stream, mo, mi);
 270         else
 271                 return hpi_instream_group_get_map(h_stream, mo, mi);
 272 }
 273
 274 static u16 handle_error(u16 err, int line, char *filename)
 275 {
 276         if (err)
 277                 printk(KERN_WARNING
 278                         "in file %s, line %d: HPI error %d\n",
 279                         filename, line, err);
 280         return err;
 281 }
 282
 283 #define hpi_handle_error(x)  handle_error(x, __LINE__, __FILE__)
 284
 285 /***************************** GENERAL PCM ****************/
 286
 287 static void print_hwparams(struct snd_pcm_substream *substream,
 288                                 struct snd_pcm_hw_params *p)
 289 {
 290         char name[16];
 291         snd_pcm_debug_name(substream, name, sizeof(name));
 292         snd_printd("%s HWPARAMS\n", name);
 293         snd_printd(" samplerate %d Hz\n", params_rate(p));
 294         snd_printd(" channels %d\n", params_channels(p));
 295         snd_printd(" format %d\n", params_format(p));
 296         snd_printd(" subformat %d\n", params_subformat(p));
 297         snd_printd(" buffer %d B\n", params_buffer_bytes(p));
 298         snd_printd(" period %d B\n", params_period_bytes(p));
 299         snd_printd(" access %d\n", params_access(p));
 300         snd_printd(" period_size %d\n", params_period_size(p));
 301         snd_printd(" periods %d\n", params_periods(p));
 302         snd_printd(" buffer_size %d\n", params_buffer_size(p));
 303         snd_printd(" %d B/s\n", params_rate(p) *
 304                 params_channels(p) *
 305                 snd_pcm_format_width(params_format(p)) / 8);
 306
 307 }
 308
 309 static snd_pcm_format_t hpi_to_alsa_formats[] = {
 310         -1,                     /* INVALID */
 311         SNDRV_PCM_FORMAT_U8,    /* HPI_FORMAT_PCM8_UNSIGNED        1 */
 312         SNDRV_PCM_FORMAT_S16,   /* HPI_FORMAT_PCM16_SIGNED         2 */
 313         -1,                     /* HPI_FORMAT_MPEG_L1              3 */
 314         SNDRV_PCM_FORMAT_MPEG,  /* HPI_FORMAT_MPEG_L2              4 */
 315         SNDRV_PCM_FORMAT_MPEG,  /* HPI_FORMAT_MPEG_L3              5 */
 316         -1,                     /* HPI_FORMAT_DOLBY_AC2            6 */
 317         -1,                     /* HPI_FORMAT_DOLBY_AC3            7 */
 318         SNDRV_PCM_FORMAT_S16_BE,/* HPI_FORMAT_PCM16_BIGENDIAN      8 */
 319         -1,                     /* HPI_FORMAT_AA_TAGIT1_HITS       9 */
 320         -1,                     /* HPI_FORMAT_AA_TAGIT1_INSERTS   10 */
 321         SNDRV_PCM_FORMAT_S32,   /* HPI_FORMAT_PCM32_SIGNED        11 */
 322         -1,                     /* HPI_FORMAT_RAW_BITSTREAM       12 */
 323         -1,                     /* HPI_FORMAT_AA_TAGIT1_HITS_EX1  13 */
 324         SNDRV_PCM_FORMAT_FLOAT, /* HPI_FORMAT_PCM32_FLOAT         14 */
 325 #if 1
 326         /* ALSA can't handle 3 byte sample size together with power-of-2
 327          *  constraint on buffer_bytes, so disable this format
 328          */
 329         -1
 330 #else
 331         /* SNDRV_PCM_FORMAT_S24_3LE */ /* HPI_FORMAT_PCM24_SIGNED 15 */
 332 #endif
 333 };
 334
 335
 336 static int snd_card_asihpi_format_alsa2hpi(snd_pcm_format_t alsa_format,
 337                                            u16 *hpi_format)
 338 {
 339         u16 format;
 340
 341         for (format = HPI_FORMAT_PCM8_UNSIGNED;
 342              format <= HPI_FORMAT_PCM24_SIGNED; format++) {
 343                 if (hpi_to_alsa_formats[format] == alsa_format) {
 344                         *hpi_format = format;
 345                         return 0;
 346                 }
 347         }
 348
 349         snd_printd(KERN_WARNING "failed match for alsa format %d\n",
 350                    alsa_format);
 351         *hpi_format = 0;
 352         return -EINVAL;
 353 }
 354
 355 static void snd_card_asihpi_pcm_samplerates(struct snd_card_asihpi *asihpi,
 356                                          struct snd_pcm_hardware *pcmhw)
 357 {
 358         u16 err;
 359         u32 h_control;
 360         u32 sample_rate;
 361         int idx;
 362         unsigned int rate_min = 200000;
 363         unsigned int rate_max = 0;
 364         unsigned int rates = 0;
 365
 366         if (asihpi->support_mrx) {
 367                 rates |= SNDRV_PCM_RATE_CONTINUOUS;
 368                 rates |= SNDRV_PCM_RATE_8000_96000;
 369                 rate_min = 8000;
 370                 rate_max = 100000;
 371         } else {
 372                 /* on cards without SRC,
 373                    valid rates are determined by sampleclock */
 374                 err = hpi_mixer_get_control(asihpi->h_mixer,
 375                                           HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
 376                                           HPI_CONTROL_SAMPLECLOCK, &h_control);
 377                 if (err) {
 378                         snd_printk(KERN_ERR
 379                                 "No local sampleclock, err %d\n", err);
 380                 }
 381
 382                 for (idx = -1; idx < 100; idx++) {
 383                         if (idx == -1) {
 384                                 if (hpi_sample_clock_get_sample_rate(h_control,
 385                                                                 &sample_rate))
 386                                         continue;
 387                         } else if (hpi_sample_clock_query_local_rate(h_control,
 388                                                         idx, &sample_rate)) {
 389                                 break;
 390                         }
 391
 392                         rate_min = min(rate_min, sample_rate);
 393                         rate_max = max(rate_max, sample_rate);
 394
 395                         switch (sample_rate) {
 396                         case 5512:
 397                                 rates |= SNDRV_PCM_RATE_5512;
 398                                 break;
 399                         case 8000:
 400                                 rates |= SNDRV_PCM_RATE_8000;
 401                                 break;
 402                         case 11025:
 403                                 rates |= SNDRV_PCM_RATE_11025;
 404                                 break;
 405                         case 16000:
 406                                 rates |= SNDRV_PCM_RATE_16000;
 407                                 break;
 408                         case 22050:
 409                                 rates |= SNDRV_PCM_RATE_22050;
 410                                 break;
 411                         case 32000:
 412                                 rates |= SNDRV_PCM_RATE_32000;
 413                                 break;
 414                         case 44100:
 415                                 rates |= SNDRV_PCM_RATE_44100;
 416                                 break;
 417                         case 48000:
 418                                 rates |= SNDRV_PCM_RATE_48000;
 419                                 break;
 420                         case 64000:
 421                                 rates |= SNDRV_PCM_RATE_64000;
 422                                 break;
 423                         case 88200:
 424                                 rates |= SNDRV_PCM_RATE_88200;
 425                                 break;
 426                         case 96000:
 427                                 rates |= SNDRV_PCM_RATE_96000;
 428                                 break;
 429                         case 176400:
 430                                 rates |= SNDRV_PCM_RATE_176400;
 431                                 break;
 432                         case 192000:
 433                                 rates |= SNDRV_PCM_RATE_192000;
 434                                 break;
 435                         default: /* some other rate */
 436                                 rates |= SNDRV_PCM_RATE_KNOT;
 437                         }
 438                 }
 439         }
 440
 441         pcmhw->rates = rates;
 442         pcmhw->rate_min = rate_min;
 443         pcmhw->rate_max = rate_max;
 444 }
 445
 446 static int snd_card_asihpi_pcm_hw_params(struct snd_pcm_substream *substream,
 447                                          struct snd_pcm_hw_params *params)
 448 {
 449         struct snd_pcm_runtime *runtime = substream->runtime;
 450         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
 451         struct snd_card_asihpi *card = snd_pcm_substream_chip(substream);
 452         int err;
 453         u16 format;
 454         int width;
 455         unsigned int bytes_per_sec;
 456
 457         print_hwparams(substream, params);
 458         err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
 459         if (err < 0)
 460                 return err;
 461         err = snd_card_asihpi_format_alsa2hpi(params_format(params), &format);
 462         if (err)
 463                 return err;
 464
 465         hpi_handle_error(hpi_format_create(&dpcm->format,
 466                         params_channels(params),
 467                         format, params_rate(params), 0, 0));
 468
 469         if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
 470                 if (hpi_instream_reset(dpcm->h_stream) != 0)
 471                         return -EINVAL;
 472
 473                 if (hpi_instream_set_format(
 474                         dpcm->h_stream, &dpcm->format) != 0)
 475                         return -EINVAL;
 476         }
 477
 478         dpcm->hpi_buffer_attached = 0;
 479         if (card->can_dma) {
 480                 err = hpi_stream_host_buffer_attach(dpcm->h_stream,
 481                         params_buffer_bytes(params),  runtime->dma_addr);
 482                 if (err == 0) {
 483                         snd_printdd(
 484                                 "stream_host_buffer_attach succeeded %u %lu\n",
 485                                 params_buffer_bytes(params),
 486                                 (unsigned long)runtime->dma_addr);
 487                 } else {
 488                         snd_printd("stream_host_buffer_attach error %d\n",
 489                                         err);
 490                         return -ENOMEM;
 491                 }
 492
 493                 err = hpi_stream_get_info_ex(dpcm->h_stream, NULL,
 494                                                 &dpcm->hpi_buffer_attached,
 495                                                 NULL, NULL, NULL);
 496
 497                 snd_printdd("stream_host_buffer_attach status 0x%x\n",
 498                                 dpcm->hpi_buffer_attached);
 499
 500         }
 501         bytes_per_sec = params_rate(params) * params_channels(params);
 502         width = snd_pcm_format_width(params_format(params));
 503         bytes_per_sec *= width;
 504         bytes_per_sec /= 8;
 505         if (width < 0 || bytes_per_sec == 0)
 506                 return -EINVAL;
 507
 508         dpcm->bytes_per_sec = bytes_per_sec;
 509         dpcm->buffer_bytes = params_buffer_bytes(params);
 510         dpcm->period_bytes = params_period_bytes(params);
 511
 512         return 0;
 513 }
 514
 515 static int
 516 snd_card_asihpi_hw_free(struct snd_pcm_substream *substream)
 517 {
 518         struct snd_pcm_runtime *runtime = substream->runtime;
 519         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
 520         if (dpcm->hpi_buffer_attached)
 521                 hpi_stream_host_buffer_detach(dpcm->h_stream);
 522
 523         snd_pcm_lib_free_pages(substream);
 524         return 0;
 525 }
 526
 527 static void snd_card_asihpi_runtime_free(struct snd_pcm_runtime *runtime)
 528 {
 529         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
 530         kfree(dpcm);
 531 }
 532
 533 static void snd_card_asihpi_pcm_timer_start(struct snd_pcm_substream *
 534                                             substream)
 535 {
 536         struct snd_pcm_runtime *runtime = substream->runtime;
 537         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
 538         int expiry;
 539
 540         expiry = HZ / 200;
 541         /*? (dpcm->period_bytes * HZ / dpcm->bytes_per_sec); */
 542         expiry = max(expiry, 1); /* don't let it be zero! */
 543         dpcm->timer.expires = jiffies + expiry;
 544         dpcm->respawn_timer = 1;
 545         add_timer(&dpcm->timer);
 546 }
 547
 548 static void snd_card_asihpi_pcm_timer_stop(struct snd_pcm_substream *substream)
 549 {
 550         struct snd_pcm_runtime *runtime = substream->runtime;
 551         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
 552
 553         dpcm->respawn_timer = 0;
 554         del_timer(&dpcm->timer);
 555 }
 556
 557 static int snd_card_asihpi_trigger(struct snd_pcm_substream *substream,
 558                                            int cmd)
 559 {
 560         struct snd_card_asihpi_pcm *dpcm = substream->runtime->private_data;
 561         struct snd_card_asihpi *card = snd_pcm_substream_chip(substream);
 562         struct snd_pcm_substream *s;
 563         u16 e;
 564         char name[16];
 565
 566         snd_pcm_debug_name(substream, name, sizeof(name));
 567         snd_printdd("%s trigger\n", name);
 568
 569         switch (cmd) {
 570         case SNDRV_PCM_TRIGGER_START:
 571                 snd_pcm_group_for_each_entry(s, substream) {
 572                         struct snd_pcm_runtime *runtime = s->runtime;
 573                         struct snd_card_asihpi_pcm *ds = runtime->private_data;
 574
 575                         if (snd_pcm_substream_chip(s) != card)
 576                                 continue;
 577
 578                         /* don't link Cap and Play */
 579                         if (substream->stream != s->stream)
 580                                 continue;
 581
 582                         ds->drained_count = 0;
 583                         if (s->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 584                                 /* How do I know how much valid data is present
 585                                 * in buffer? Must be at least one period!
 586                                 * Guessing 2 periods, but if
 587                                 * buffer is bigger it may contain even more
 588                                 * data??
 589                                 */
 590                                 unsigned int preload = ds->period_bytes * 1;
 591                                 snd_printddd("%d preload x%x\n", s->number, preload);
 592                                 hpi_handle_error(hpi_outstream_write_buf(
 593                                                 ds->h_stream,
 594                                                 &runtime->dma_area[0],
 595                                                 preload,
 596                                                 &ds->format));
 597                                 ds->pcm_buf_host_rw_ofs = preload;
 598                         }
 599
 600                         if (card->support_grouping) {
 601                                 snd_printdd("%d group\n", s->number);
 602                                 e = hpi_stream_group_add(
 603                                         dpcm->h_stream,
 604                                         ds->h_stream);
 605                                 if (!e) {
 606                                         snd_pcm_trigger_done(s, substream);
 607                                 } else {
 608                                         hpi_handle_error(e);
 609                                         break;
 610                                 }
 611                         } else
 612                                 break;
 613                 }
 614                 snd_printdd("start\n");
 615                 /* start the master stream */
 616                 snd_card_asihpi_pcm_timer_start(substream);
 617                 if ((substream->stream == SNDRV_PCM_STREAM_CAPTURE) ||
 618                         !card->can_dma)
 619                         hpi_handle_error(hpi_stream_start(dpcm->h_stream));
 620                 break;
 621
 622         case SNDRV_PCM_TRIGGER_STOP:
 623                 snd_card_asihpi_pcm_timer_stop(substream);
 624                 snd_pcm_group_for_each_entry(s, substream) {
 625                         if (snd_pcm_substream_chip(s) != card)
 626                                 continue;
 627                         /* don't link Cap and Play */
 628                         if (substream->stream != s->stream)
 629                                 continue;
 630
 631                         /*? workaround linked streams don't
 632                         transition to SETUP 20070706*/
 633                         s->runtime->status->state = SNDRV_PCM_STATE_SETUP;
 634
 635                         if (card->support_grouping) {
 636                                 snd_printdd("%d group\n", s->number);
 637                                 snd_pcm_trigger_done(s, substream);
 638                         } else
 639                                 break;
 640                 }
 641                 snd_printdd("stop\n");
 642
 643                 /* _prepare and _hwparams reset the stream */
 644                 hpi_handle_error(hpi_stream_stop(dpcm->h_stream));
 645                 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
 646                         hpi_handle_error(
 647                                 hpi_outstream_reset(dpcm->h_stream));
 648
 649                 if (card->support_grouping)
 650                         hpi_handle_error(hpi_stream_group_reset(dpcm->h_stream));
 651                 break;
 652
 653         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 654                 snd_printdd("pause release\n");
 655                 hpi_handle_error(hpi_stream_start(dpcm->h_stream));
 656                 snd_card_asihpi_pcm_timer_start(substream);
 657                 break;
 658         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 659                 snd_printdd("pause\n");
 660                 snd_card_asihpi_pcm_timer_stop(substream);
 661                 hpi_handle_error(hpi_stream_stop(dpcm->h_stream));
 662                 break;
 663         default:
 664                 snd_printd(KERN_ERR "\tINVALID\n");
 665                 return -EINVAL;
 666         }
 667
 668         return 0;
 669 }
 670
 671 /*algorithm outline
 672  Without linking degenerates to getting single stream pos etc
 673  Without mmap 2nd loop degenerates to snd_pcm_period_elapsed
 674 */
 675 /*
 676 pcm_buf_dma_ofs=get_buf_pos(s);
 677 for_each_linked_stream(s) {
 678         pcm_buf_dma_ofs=get_buf_pos(s);
 679         min_buf_pos = modulo_min(min_buf_pos, pcm_buf_dma_ofs, buffer_bytes)
 680         new_data = min(new_data, calc_new_data(pcm_buf_dma_ofs,irq_pos)
 681 }
 682 timer.expires = jiffies + predict_next_period_ready(min_buf_pos);
 683 for_each_linked_stream(s) {
 684         s->pcm_buf_dma_ofs = min_buf_pos;
 685         if (new_data > period_bytes) {
 686                 if (mmap) {
 687                         irq_pos = (irq_pos + period_bytes) % buffer_bytes;
 688                         if (playback) {
 689                                 write(period_bytes);
 690                         } else {
 691                                 read(period_bytes);
 692                         }
 693                 }
 694                 snd_pcm_period_elapsed(s);
 695         }
 696 }
 697 */
 698
 699 /** Minimum of 2 modulo values.  Works correctly when the difference between
 700 * the values is less than half the modulus
 701 */
 702 static inline unsigned int modulo_min(unsigned int a, unsigned int b,
 703                                         unsigned long int modulus)
 704 {
 705         unsigned int result;
 706         if (((a-b) % modulus) < (modulus/2))
 707                 result = b;
 708         else
 709                 result = a;
 710
 711         return result;
 712 }
 713
 714 /** Timer function, equivalent to interrupt service routine for cards
 715 */
 716 static void snd_card_asihpi_timer_function(unsigned long data)
 717 {
 718         struct snd_card_asihpi_pcm *dpcm = (struct snd_card_asihpi_pcm *)data;
 719         struct snd_pcm_substream *substream = dpcm->substream;
 720         struct snd_card_asihpi *card = snd_pcm_substream_chip(substream);
 721         struct snd_pcm_runtime *runtime;
 722         struct snd_pcm_substream *s;
 723         unsigned int newdata = 0;
 724         unsigned int pcm_buf_dma_ofs, min_buf_pos = 0;
 725         unsigned int remdata, xfercount, next_jiffies;
 726         int first = 1;
 727         int loops = 0;
 728         u16 state;
 729         u32 buffer_size, bytes_avail, samples_played, on_card_bytes;
 730         char name[16];
 731
 732         snd_pcm_debug_name(substream, name, sizeof(name));
 733
 734         snd_printdd("%s snd_card_asihpi_timer_function\n", name);
 735
 736         /* find minimum newdata and buffer pos in group */
 737         snd_pcm_group_for_each_entry(s, substream) {
 738                 struct snd_card_asihpi_pcm *ds = s->runtime->private_data;
 739                 runtime = s->runtime;
 740
 741                 if (snd_pcm_substream_chip(s) != card)
 742                         continue;
 743
 744                 /* don't link Cap and Play */
 745                 if (substream->stream != s->stream)
 746                         continue;
 747
 748                 hpi_handle_error(hpi_stream_get_info_ex(
 749                                         ds->h_stream, &state,
 750                                         &buffer_size, &bytes_avail,
 751                                         &samples_played, &on_card_bytes));
 752
 753                 /* number of bytes in on-card buffer */
 754                 runtime->delay = on_card_bytes;
 755
 756                 if (!card->can_dma)
 757                         on_card_bytes = bytes_avail;
 758
 759                 if (s->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 760                         pcm_buf_dma_ofs = ds->pcm_buf_host_rw_ofs - bytes_avail;
 761                         if (state == HPI_STATE_STOPPED) {
 762                                 if (bytes_avail == 0) {
 763                                         hpi_handle_error(hpi_stream_start(ds->h_stream));
 764                                         snd_printdd("P%d start\n", s->number);
 765                                         ds->drained_count = 0;
 766                                 }
 767                         } else if (state == HPI_STATE_DRAINED) {
 768                                 snd_printd(KERN_WARNING "P%d drained\n",
 769                                                 s->number);
 770                                 ds->drained_count++;
 771                                 if (ds->drained_count > 20) {
 772                                         unsigned long flags;
 773                                         snd_pcm_stream_lock_irqsave(s, flags);
 774                                         snd_pcm_stop(s, SNDRV_PCM_STATE_XRUN);
 775                                         snd_pcm_stream_unlock_irqrestore(s, flags);
 776                                         continue;
 777                                 }
 778                         } else {
 779                                 ds->drained_count = 0;
 780                         }
 781                 } else
 782                         pcm_buf_dma_ofs = bytes_avail + ds->pcm_buf_host_rw_ofs;
 783
 784                 if (first) {
 785                         /* can't statically init min when wrap is involved */
 786                         min_buf_pos = pcm_buf_dma_ofs;
 787                         newdata = (pcm_buf_dma_ofs - ds->pcm_buf_elapsed_dma_ofs) % ds->buffer_bytes;
 788                         first = 0;
 789                 } else {
 790                         min_buf_pos =
 791                                 modulo_min(min_buf_pos, pcm_buf_dma_ofs, UINT_MAX+1L);
 792                         newdata = min(
 793                                 (pcm_buf_dma_ofs - ds->pcm_buf_elapsed_dma_ofs) % ds->buffer_bytes,
 794                                 newdata);
 795                 }
 796
 797                 snd_printdd("hw_ptr 0x%04lX, appl_ptr 0x%04lX\n",
 798                         (unsigned long)frames_to_bytes(runtime,
 799                                                 runtime->status->hw_ptr),
 800                         (unsigned long)frames_to_bytes(runtime,
 801                                                 runtime->control->appl_ptr));
 802
 803                 snd_printdd("%d S=%d, "
 804                         "rw=0x%04X, dma=0x%04X, left=0x%04X, "
 805                         "aux=0x%04X space=0x%04X\n",
 806                         s->number, state,
 807                         ds->pcm_buf_host_rw_ofs, pcm_buf_dma_ofs,
 808                         (int)bytes_avail,
 809                         (int)on_card_bytes, buffer_size-bytes_avail);
 810                 loops++;
 811         }
 812         pcm_buf_dma_ofs = min_buf_pos;
 813
 814         remdata = newdata % dpcm->period_bytes;
 815         xfercount = newdata - remdata; /* a multiple of period_bytes */
 816         /* come back when on_card_bytes has decreased enough to allow
 817            write to happen, or when data has been consumed to make another
 818            period
 819         */
 820         if (xfercount && (on_card_bytes  > dpcm->period_bytes))
 821                 next_jiffies = ((on_card_bytes - dpcm->period_bytes) * HZ / dpcm->bytes_per_sec);
 822         else
 823                 next_jiffies = ((dpcm->period_bytes - remdata) * HZ / dpcm->bytes_per_sec);
 824
 825         next_jiffies = max(next_jiffies, 1U);
 826         dpcm->timer.expires = jiffies + next_jiffies;
 827         snd_printdd("jif %d buf pos 0x%04X newdata 0x%04X xfer 0x%04X\n",
 828                         next_jiffies, pcm_buf_dma_ofs, newdata, xfercount);
 829
 830         snd_pcm_group_for_each_entry(s, substream) {
 831                 struct snd_card_asihpi_pcm *ds = s->runtime->private_data;
 832
 833                 /* don't link Cap and Play */
 834                 if (substream->stream != s->stream)
 835                         continue;
 836
 837                 ds->pcm_buf_dma_ofs = pcm_buf_dma_ofs;
 838
 839                 if (xfercount &&
 840                         /* Limit use of on card fifo for playback */
 841                         ((on_card_bytes <= ds->period_bytes) ||
 842                         (s->stream == SNDRV_PCM_STREAM_CAPTURE)))
 843
 844                 {
 845
 846                         unsigned int buf_ofs = ds->pcm_buf_host_rw_ofs % ds->buffer_bytes;
 847                         unsigned int xfer1, xfer2;
 848                         char *pd = &s->runtime->dma_area[buf_ofs];
 849
 850                         if (card->can_dma) { /* buffer wrap is handled at lower level */
 851                                 xfer1 = xfercount;
 852                                 xfer2 = 0;
 853                         } else {
 854                                 xfer1 = min(xfercount, ds->buffer_bytes - buf_ofs);
 855                                 xfer2 = xfercount - xfer1;
 856                         }
 857
 858                         if (s->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 859                                 snd_printddd("P%d write1 0x%04X 0x%04X\n",
 860                                         s->number, xfer1, buf_ofs);
 861                                 hpi_handle_error(
 862                                         hpi_outstream_write_buf(
 863                                                 ds->h_stream, pd, xfer1,
 864                                                 &ds->format));
 865
 866                                 if (xfer2) {
 867                                         pd = s->runtime->dma_area;
 868
 869                                         snd_printddd("P%d write2 0x%04X 0x%04X\n",
 870                                                         s->number,
 871                                                         xfercount - xfer1, buf_ofs);
 872                                         hpi_handle_error(
 873                                                 hpi_outstream_write_buf(
 874                                                         ds->h_stream, pd,
 875                                                         xfercount - xfer1,
 876                                                         &ds->format));
 877                                 }
 878                         } else {
 879                                 snd_printddd("C%d read1 0x%04x\n",
 880                                         s->number, xfer1);
 881                                 hpi_handle_error(
 882                                         hpi_instream_read_buf(
 883                                                 ds->h_stream,
 884                                                 pd, xfer1));
 885                                 if (xfer2) {
 886                                         pd = s->runtime->dma_area;
 887                                         snd_printddd("C%d read2 0x%04x\n",
 888                                                 s->number, xfer2);
 889                                         hpi_handle_error(
 890                                                 hpi_instream_read_buf(
 891                                                         ds->h_stream,
 892                                                         pd, xfer2));
 893                                 }
 894                         }
 895                         ds->pcm_buf_host_rw_ofs += xfercount;
 896                         ds->pcm_buf_elapsed_dma_ofs += xfercount;
 897                         snd_pcm_period_elapsed(s);
 898                 }
 899         }
 900
 901         if (dpcm->respawn_timer)
 902                 add_timer(&dpcm->timer);
 903 }
 904
 905 /***************************** PLAYBACK OPS ****************/
 906 static int snd_card_asihpi_playback_ioctl(struct snd_pcm_substream *substream,
 907                                           unsigned int cmd, void *arg)
 908 {
 909         char name[16];
 910         snd_pcm_debug_name(substream, name, sizeof(name));
 911         snd_printddd(KERN_INFO "%s ioctl %d\n", name, cmd);
 912         return snd_pcm_lib_ioctl(substream, cmd, arg);
 913 }
 914
 915 static int snd_card_asihpi_playback_prepare(struct snd_pcm_substream *
 916                                             substream)
 917 {
 918         struct snd_pcm_runtime *runtime = substream->runtime;
 919         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
 920
 921         snd_printdd("P%d prepare\n", substream->number);
 922
 923         hpi_handle_error(hpi_outstream_reset(dpcm->h_stream));
 924         dpcm->pcm_buf_host_rw_ofs = 0;
 925         dpcm->pcm_buf_dma_ofs = 0;
 926         dpcm->pcm_buf_elapsed_dma_ofs = 0;
 927         return 0;
 928 }
 929
 930 static snd_pcm_uframes_t
 931 snd_card_asihpi_playback_pointer(struct snd_pcm_substream *substream)
 932 {
 933         struct snd_pcm_runtime *runtime = substream->runtime;
 934         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
 935         snd_pcm_uframes_t ptr;
 936         char name[16];
 937         snd_pcm_debug_name(substream, name, sizeof(name));
 938
 939         ptr = bytes_to_frames(runtime, dpcm->pcm_buf_dma_ofs  % dpcm->buffer_bytes);
 940         snd_printddd("%s pointer = 0x%04lx\n", name, (unsigned long)ptr);
 941         return ptr;
 942 }
 943
 944 static u64 snd_card_asihpi_playback_formats(struct snd_card_asihpi *asihpi,
 945                                                 u32 h_stream)
 946 {
 947         struct hpi_format hpi_format;
 948         u16 format;
 949         u16 err;
 950         u32 h_control;
 951         u32 sample_rate = 48000;
 952         u64 formats = 0;
 953
 954         /* on cards without SRC, must query at valid rate,
 955         * maybe set by external sync
 956         */
 957         err = hpi_mixer_get_control(asihpi->h_mixer,
 958                                   HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
 959                                   HPI_CONTROL_SAMPLECLOCK, &h_control);
 960
 961         if (!err)
 962                 err = hpi_sample_clock_get_sample_rate(h_control,
 963                                 &sample_rate);
 964
 965         for (format = HPI_FORMAT_PCM8_UNSIGNED;
 966              format <= HPI_FORMAT_PCM24_SIGNED; format++) {
 967                 err = hpi_format_create(&hpi_format, asihpi->out_max_chans,
 968                                         format, sample_rate, 128000, 0);
 969                 if (!err)
 970                         err = hpi_outstream_query_format(h_stream, &hpi_format);
 971                 if (!err && (hpi_to_alsa_formats[format] != -1))
 972                         formats |= pcm_format_to_bits(hpi_to_alsa_formats[format]);
 973         }
 974         return formats;
 975 }
 976
 977 static int snd_card_asihpi_playback_open(struct snd_pcm_substream *substream)
 978 {
 979         struct snd_pcm_runtime *runtime = substream->runtime;
 980         struct snd_card_asihpi_pcm *dpcm;
 981         struct snd_card_asihpi *card = snd_pcm_substream_chip(substream);
 982         struct snd_pcm_hardware snd_card_asihpi_playback;
 983         int err;
 984
 985         dpcm = kzalloc(sizeof(*dpcm), GFP_KERNEL);
 986         if (dpcm == NULL)
 987                 return -ENOMEM;
 988
 989         err = hpi_outstream_open(card->hpi->adapter->index,
 990                               substream->number, &dpcm->h_stream);
 991         hpi_handle_error(err);
 992         if (err)
 993                 kfree(dpcm);
 994         if (err == HPI_ERROR_OBJ_ALREADY_OPEN)
 995                 return -EBUSY;
 996         if (err)
 997                 return -EIO;
 998
 999         /*? also check ASI5000 samplerate source
1000             If external, only support external rate.
1001             If internal and other stream playing, can't switch
1002         */
1003
1004         init_timer(&dpcm->timer);
1005         dpcm->timer.data = (unsigned long) dpcm;
1006         dpcm->timer.function = snd_card_asihpi_timer_function;
1007         dpcm->substream = substream;
1008         runtime->private_data = dpcm;
1009         runtime->private_free = snd_card_asihpi_runtime_free;
1010
1011         memset(&snd_card_asihpi_playback, 0, sizeof(snd_card_asihpi_playback));
1012         snd_card_asihpi_playback.buffer_bytes_max = BUFFER_BYTES_MAX;
1013         snd_card_asihpi_playback.period_bytes_min = PERIOD_BYTES_MIN;
1014         /*?snd_card_asihpi_playback.period_bytes_min =
1015         card->out_max_chans * 4096; */
1016         snd_card_asihpi_playback.period_bytes_max = BUFFER_BYTES_MAX / PERIODS_MIN;
1017         snd_card_asihpi_playback.periods_min = PERIODS_MIN;
1018         snd_card_asihpi_playback.periods_max = BUFFER_BYTES_MAX / PERIOD_BYTES_MIN;
1019         /* snd_card_asihpi_playback.fifo_size = 0; */
1020         snd_card_asihpi_playback.channels_max = card->out_max_chans;
1021         snd_card_asihpi_playback.channels_min = card->out_min_chans;
1022         snd_card_asihpi_playback.formats =
1023                         snd_card_asihpi_playback_formats(card, dpcm->h_stream);
1024
1025         snd_card_asihpi_pcm_samplerates(card,  &snd_card_asihpi_playback);
1026
1027         snd_card_asihpi_playback.info = SNDRV_PCM_INFO_INTERLEAVED |
1028                                         SNDRV_PCM_INFO_DOUBLE |
1029                                         SNDRV_PCM_INFO_BATCH |
1030                                         SNDRV_PCM_INFO_BLOCK_TRANSFER |
1031                                         SNDRV_PCM_INFO_PAUSE |
1032                                         SNDRV_PCM_INFO_MMAP |
1033                                         SNDRV_PCM_INFO_MMAP_VALID;
1034
1035         if (card->support_grouping) {
1036                 snd_card_asihpi_playback.info |= SNDRV_PCM_INFO_SYNC_START;
1037                 snd_pcm_set_sync(substream);
1038         }
1039
1040         /* struct is copied, so can create initializer dynamically */
1041         runtime->hw = snd_card_asihpi_playback;
1042
1043         if (card->can_dma)
1044                 err = snd_pcm_hw_constraint_pow2(runtime, 0,
1045                                         SNDRV_PCM_HW_PARAM_BUFFER_BYTES);
1046         if (err < 0)
1047                 return err;
1048
1049         snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
1050                 card->update_interval_frames);
1051
1052         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
1053                 card->update_interval_frames * 2, UINT_MAX);
1054
1055         snd_printdd("playback open\n");
1056
1057         return 0;
1058 }
1059
1060 static int snd_card_asihpi_playback_close(struct snd_pcm_substream *substream)
1061 {
1062         struct snd_pcm_runtime *runtime = substream->runtime;
1063         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
1064
1065         hpi_handle_error(hpi_outstream_close(dpcm->h_stream));
1066         snd_printdd("playback close\n");
1067
1068         return 0;
1069 }
1070
1071 static struct snd_pcm_ops snd_card_asihpi_playback_mmap_ops = {
1072         .open = snd_card_asihpi_playback_open,
1073         .close = snd_card_asihpi_playback_close,
1074         .ioctl = snd_card_asihpi_playback_ioctl,
1075         .hw_params = snd_card_asihpi_pcm_hw_params,
1076         .hw_free = snd_card_asihpi_hw_free,
1077         .prepare = snd_card_asihpi_playback_prepare,
1078         .trigger = snd_card_asihpi_trigger,
1079         .pointer = snd_card_asihpi_playback_pointer,
1080 };
1081
1082 /***************************** CAPTURE OPS ****************/
1083 static snd_pcm_uframes_t
1084 snd_card_asihpi_capture_pointer(struct snd_pcm_substream *substream)
1085 {
1086         struct snd_pcm_runtime *runtime = substream->runtime;
1087         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
1088
1089         snd_printddd("capture pointer %d=%d\n",
1090                         substream->number, dpcm->pcm_buf_dma_ofs);
1091         /* NOTE Unlike playback can't use actual samples_played
1092                 for the capture position, because those samples aren't yet in
1093                 the local buffer available for reading.
1094         */
1095         return bytes_to_frames(runtime, dpcm->pcm_buf_dma_ofs % dpcm->buffer_bytes);
1096 }
1097
1098 static int snd_card_asihpi_capture_ioctl(struct snd_pcm_substream *substream,
1099                                          unsigned int cmd, void *arg)
1100 {
1101         return snd_pcm_lib_ioctl(substream, cmd, arg);
1102 }
1103
1104 static int snd_card_asihpi_capture_prepare(struct snd_pcm_substream *substream)
1105 {
1106         struct snd_pcm_runtime *runtime = substream->runtime;
1107         struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
1108
1109         hpi_handle_error(hpi_instream_reset(dpcm->h_stream));
1110         dpcm->pcm_buf_host_rw_ofs = 0;
1111         dpcm->pcm_buf_dma_ofs = 0;
1112         dpcm->pcm_buf_elapsed_dma_ofs = 0;
1113
1114         snd_printdd("Capture Prepare %d\n", substream->number);
1115         return 0;
1116 }
1117
1118
1119
1120 static u64 snd_card_asihpi_capture_formats(struct snd_card_asihpi *asihpi,
1121                                         u32 h_stream)
1122 {
1123   struct hpi_format hpi_format;
1124         u16 format;
1125         u16 err;
1126         u32 h_control;
1127         u32 sample_rate = 48000;
1128         u64 formats = 0;
1129
1130         /* on cards without SRC, must query at valid rate,
1131                 maybe set by external sync */
1132         err = hpi_mixer_get_control(asihpi->h_mixer,
1133                                   HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
1134                                   HPI_CONTROL_SAMPLECLOCK, &h_control);
1135
1136         if (!err)
1137                 err = hpi_sample_clock_get_sample_rate(h_control,
1138                         &sample_rate);
1139
1140         for (format = HPI_FORMAT_PCM8_UNSIGNED;
1141                 format <= HPI_FORMAT_PCM24_SIGNED; format++) {
1142
1143                 err = hpi_format_create(&hpi_format, asihpi->in_max_chans,
1144                                         format, sample_rate, 128000, 0);
1145                 if (!err)
1146                         err = hpi_instream_query_format(h_stream, &hpi_format);
1147                 if (!err && (hpi_to_alsa_formats[format] != -1))
1148                         formats |= pcm_format_to_bits(hpi_to_alsa_formats[format]);
1149         }
1150         return formats;
1151 }
1152
1153 static int snd_card_asihpi_capture_open(struct snd_pcm_substream *substream)
1154 {
1155         struct snd_pcm_runtime *runtime = substream->runtime;
1156         struct snd_card_asihpi *card = snd_pcm_substream_chip(substream);
1157         struct snd_card_asihpi_pcm *dpcm;
1158         struct snd_pcm_hardware snd_card_asihpi_capture;
1159         int err;
1160
1161         dpcm = kzalloc(sizeof(*dpcm), GFP_KERNEL);
1162         if (dpcm == NULL)
1163                 return -ENOMEM;
1164
1165         snd_printdd("capture open adapter %d stream %d\n",
1166                         card->hpi->adapter->index, substream->number);
1167
1168         err = hpi_handle_error(
1169             hpi_instream_open(card->hpi->adapter->index,
1170                              substream->number, &dpcm->h_stream));
1171         if (err)
1172                 kfree(dpcm);
1173         if (err == HPI_ERROR_OBJ_ALREADY_OPEN)
1174                 return -EBUSY;
1175         if (err)
1176                 return -EIO;
1177
1178         init_timer(&dpcm->timer);
1179         dpcm->timer.data = (unsigned long) dpcm;
1180         dpcm->timer.function = snd_card_asihpi_timer_function;
1181         dpcm->substream = substream;
1182         runtime->private_data = dpcm;
1183         runtime->private_free = snd_card_asihpi_runtime_free;
1184
1185         memset(&snd_card_asihpi_capture, 0, sizeof(snd_card_asihpi_capture));
1186         snd_card_asihpi_capture.buffer_bytes_max = BUFFER_BYTES_MAX;
1187         snd_card_asihpi_capture.period_bytes_min = PERIOD_BYTES_MIN;
1188         snd_card_asihpi_capture.period_bytes_max = BUFFER_BYTES_MAX / PERIODS_MIN;
1189         snd_card_asihpi_capture.periods_min = PERIODS_MIN;
1190         snd_card_asihpi_capture.periods_max = BUFFER_BYTES_MAX / PERIOD_BYTES_MIN;
1191         /* snd_card_asihpi_capture.fifo_size = 0; */
1192         snd_card_asihpi_capture.channels_max = card->in_max_chans;
1193         snd_card_asihpi_capture.channels_min = card->in_min_chans;
1194         snd_card_asihpi_capture.formats =
1195                 snd_card_asihpi_capture_formats(card, dpcm->h_stream);
1196         snd_card_asihpi_pcm_samplerates(card,  &snd_card_asihpi_capture);
1197         snd_card_asihpi_capture.info = SNDRV_PCM_INFO_INTERLEAVED |
1198                                         SNDRV_PCM_INFO_MMAP |
1199                                         SNDRV_PCM_INFO_MMAP_VALID;
1200
1201         if (card->support_grouping)
1202                 snd_card_asihpi_capture.info |= SNDRV_PCM_INFO_SYNC_START;
1203
1204         runtime->hw = snd_card_asihpi_capture;
1205
1206         if (card->can_dma)
1207                 err = snd_pcm_hw_constraint_pow2(runtime, 0,
1208                                         SNDRV_PCM_HW_PARAM_BUFFER_BYTES);
1209         if (err < 0)
1210                 return err;
1211
1212         snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
1213                 card->update_interval_frames);
1214         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
1215                 card->update_interval_frames * 2, UINT_MAX);
1216
1217         snd_pcm_set_sync(substream);
1218
1219         return 0;
1220 }
1221
1222 static int snd_card_asihpi_capture_close(struct snd_pcm_substream *substream)
1223 {
1224         struct snd_card_asihpi_pcm *dpcm = substream->runtime->private_data;
1225
1226         hpi_handle_error(hpi_instream_close(dpcm->h_stream));
1227         return 0;
1228 }
1229
1230 static struct snd_pcm_ops snd_card_asihpi_capture_mmap_ops = {
1231         .open = snd_card_asihpi_capture_open,
1232         .close = snd_card_asihpi_capture_close,
1233         .ioctl = snd_card_asihpi_capture_ioctl,
1234         .hw_params = snd_card_asihpi_pcm_hw_params,
1235         .hw_free = snd_card_asihpi_hw_free,
1236         .prepare = snd_card_asihpi_capture_prepare,
1237         .trigger = snd_card_asihpi_trigger,
1238         .pointer = snd_card_asihpi_capture_pointer,
1239 };
1240
1241 static int snd_card_asihpi_pcm_new(struct snd_card_asihpi *asihpi, int device)
1242 {
1243         struct snd_pcm *pcm;
1244         int err;
1245         u16 num_instreams, num_outstreams, x16;
1246         u32 x32;
1247
1248         err = hpi_adapter_get_info(asihpi->hpi->adapter->index,
1249                         &num_outstreams, &num_instreams,
1250                         &x16, &x32, &x16);
1251
1252         err = snd_pcm_new(asihpi->card, "Asihpi PCM", device,
1253                         num_outstreams, num_instreams, &pcm);
1254         if (err < 0)
1255                 return err;
1256
1257         /* pointer to ops struct is stored, dont change ops afterwards! */
1258         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1259                         &snd_card_asihpi_playback_mmap_ops);
1260         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
1261                         &snd_card_asihpi_capture_mmap_ops);
1262
1263         pcm->private_data = asihpi;
1264         pcm->info_flags = 0;
1265         strcpy(pcm->name, "Asihpi PCM");
1266
1267         /*? do we want to emulate MMAP for non-BBM cards?
1268         Jack doesn't work with ALSAs MMAP emulation - WHY NOT? */
1269         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1270                                                 snd_dma_pci_data(asihpi->pci),
1271                                                 64*1024, BUFFER_BYTES_MAX);
1272
1273         return 0;
1274 }
1275
1276 /***************************** MIXER CONTROLS ****************/
1277 struct hpi_control {
1278         u32 h_control;
1279         u16 control_type;
1280         u16 src_node_type;
1281         u16 src_node_index;
1282         u16 dst_node_type;
1283         u16 dst_node_index;
1284         u16 band;
1285         char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* copied to snd_ctl_elem_id.name[44]; */
1286 };
1287
1288 static const char * const asihpi_tuner_band_names[] = {
1289         "invalid",
1290         "AM",
1291         "FM mono",
1292         "TV NTSC-M",
1293         "FM stereo",
1294         "AUX",
1295         "TV PAL BG",
1296         "TV PAL I",
1297         "TV PAL DK",
1298         "TV SECAM",
1299 };
1300
1301 compile_time_assert(
1302         (ARRAY_SIZE(asihpi_tuner_band_names) ==
1303                 (HPI_TUNER_BAND_LAST+1)),
1304         assert_tuner_band_names_size);
1305
1306 static const char * const asihpi_src_names[] = {
1307         "no source",
1308         "PCM",
1309         "Line",
1310         "Digital",
1311         "Tuner",
1312         "RF",
1313         "Clock",
1314         "Bitstream",
1315         "Mic",
1316         "Net",
1317         "Analog",
1318         "Adapter",
1319         "RTP",
1320         "Internal"
1321 };
1322
1323 compile_time_assert(
1324         (ARRAY_SIZE(asihpi_src_names) ==
1325                 (HPI_SOURCENODE_LAST_INDEX-HPI_SOURCENODE_NONE+1)),
1326         assert_src_names_size);
1327
1328 static const char * const asihpi_dst_names[] = {
1329         "no destination",
1330         "PCM",
1331         "Line",
1332         "Digital",
1333         "RF",
1334         "Speaker",
1335         "Net",
1336         "Analog",
1337         "RTP",
1338 };
1339
1340 compile_time_assert(
1341         (ARRAY_SIZE(asihpi_dst_names) ==
1342                 (HPI_DESTNODE_LAST_INDEX-HPI_DESTNODE_NONE+1)),
1343         assert_dst_names_size);
1344
1345 static inline int ctl_add(struct snd_card *card, struct snd_kcontrol_new *ctl,
1346                                 struct snd_card_asihpi *asihpi)
1347 {
1348         int err;
1349
1350         err = snd_ctl_add(card, snd_ctl_new1(ctl, asihpi));
1351         if (err < 0)
1352                 return err;
1353         else if (mixer_dump)
1354                 snd_printk(KERN_INFO "added %s(%d)\n", ctl->name, ctl->index);
1355
1356         return 0;
1357 }
1358
1359 /* Convert HPI control name and location into ALSA control name */
1360 static void asihpi_ctl_init(struct snd_kcontrol_new *snd_control,
1361                                 struct hpi_control *hpi_ctl,
1362                                 char *name)
1363 {
1364         char *dir;
1365         memset(snd_control, 0, sizeof(*snd_control));
1366         snd_control->name = hpi_ctl->name;
1367         snd_control->private_value = hpi_ctl->h_control;
1368         snd_control->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1369         snd_control->index = 0;
1370
1371         if (hpi_ctl->src_node_type + HPI_SOURCENODE_NONE == HPI_SOURCENODE_CLOCK_SOURCE)
1372                 dir = ""; /* clock is neither capture nor playback */
1373         else if (hpi_ctl->dst_node_type + HPI_DESTNODE_NONE == HPI_DESTNODE_ISTREAM)
1374                 dir = "Capture ";  /* On or towards a PCM capture destination*/
1375         else if ((hpi_ctl->src_node_type + HPI_SOURCENODE_NONE != HPI_SOURCENODE_OSTREAM) &&
1376                 (!hpi_ctl->dst_node_type))
1377                 dir = "Capture "; /* On a source node that is not PCM playback */
1378         else if (hpi_ctl->src_node_type &&
1379                 (hpi_ctl->src_node_type + HPI_SOURCENODE_NONE != HPI_SOURCENODE_OSTREAM) &&
1380                 (hpi_ctl->dst_node_type))
1381                 dir = "Monitor Playback "; /* Between an input and an output */
1382         else
1383                 dir = "Playback "; /* PCM Playback source, or  output node */
1384
1385         if (hpi_ctl->src_node_type && hpi_ctl->dst_node_type)
1386                 sprintf(hpi_ctl->name, "%s %d %s %d %s%s",
1387                         asihpi_src_names[hpi_ctl->src_node_type],
1388                         hpi_ctl->src_node_index,
1389                         asihpi_dst_names[hpi_ctl->dst_node_type],
1390                         hpi_ctl->dst_node_index,
1391                         dir, name);
1392         else if (hpi_ctl->dst_node_type) {
1393                 sprintf(hpi_ctl->name, "%s %d %s%s",
1394                 asihpi_dst_names[hpi_ctl->dst_node_type],
1395                 hpi_ctl->dst_node_index,
1396                 dir, name);
1397         } else {
1398                 sprintf(hpi_ctl->name, "%s %d %s%s",
1399                 asihpi_src_names[hpi_ctl->src_node_type],
1400                 hpi_ctl->src_node_index,
1401                 dir, name);
1402         }
1403         /* printk(KERN_INFO "Adding %s %d to %d ",  hpi_ctl->name,
1404                 hpi_ctl->wSrcNodeType, hpi_ctl->wDstNodeType); */
1405 }
1406
1407 /*------------------------------------------------------------
1408    Volume controls
1409  ------------------------------------------------------------*/
1410 #define VOL_STEP_mB 1
1411 static int snd_asihpi_volume_info(struct snd_kcontrol *kcontrol,
1412                                   struct snd_ctl_elem_info *uinfo)
1413 {
1414         u32 h_control = kcontrol->private_value;
1415         u32 count;
1416         u16 err;
1417         /* native gains are in millibels */
1418         short min_gain_mB;
1419         short max_gain_mB;
1420         short step_gain_mB;
1421
1422         err = hpi_volume_query_range(h_control,
1423                         &min_gain_mB, &max_gain_mB, &step_gain_mB);
1424         if (err) {
1425                 max_gain_mB = 0;
1426                 min_gain_mB = -10000;
1427                 step_gain_mB = VOL_STEP_mB;
1428         }
1429
1430         err = hpi_meter_query_channels(h_control, &count);
1431         if (err)
1432                 count = HPI_MAX_CHANNELS;
1433
1434         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1435         uinfo->count = count;
1436         uinfo->value.integer.min = min_gain_mB / VOL_STEP_mB;
1437         uinfo->value.integer.max = max_gain_mB / VOL_STEP_mB;
1438         uinfo->value.integer.step = step_gain_mB / VOL_STEP_mB;
1439         return 0;
1440 }
1441
1442 static int snd_asihpi_volume_get(struct snd_kcontrol *kcontrol,
1443                                  struct snd_ctl_elem_value *ucontrol)
1444 {
1445         u32 h_control = kcontrol->private_value;
1446         short an_gain_mB[HPI_MAX_CHANNELS];
1447
1448         hpi_handle_error(hpi_volume_get_gain(h_control, an_gain_mB));
1449         ucontrol->value.integer.value[0] = an_gain_mB[0] / VOL_STEP_mB;
1450         ucontrol->value.integer.value[1] = an_gain_mB[1] / VOL_STEP_mB;
1451
1452         return 0;
1453 }
1454
1455 static int snd_asihpi_volume_put(struct snd_kcontrol *kcontrol,
1456                                  struct snd_ctl_elem_value *ucontrol)
1457 {
1458         int change;
1459         u32 h_control = kcontrol->private_value;
1460         short an_gain_mB[HPI_MAX_CHANNELS];
1461
1462         an_gain_mB[0] =
1463             (ucontrol->value.integer.value[0]) * VOL_STEP_mB;
1464         an_gain_mB[1] =
1465             (ucontrol->value.integer.value[1]) * VOL_STEP_mB;
1466         /*  change = asihpi->mixer_volume[addr][0] != left ||
1467            asihpi->mixer_volume[addr][1] != right;
1468          */
1469         change = 1;
1470         hpi_handle_error(hpi_volume_set_gain(h_control, an_gain_mB));
1471         return change;
1472 }
1473
1474 static const DECLARE_TLV_DB_SCALE(db_scale_100, -10000, VOL_STEP_mB, 0);
1475
1476 #define snd_asihpi_volume_mute_info     snd_ctl_boolean_mono_info
1477
1478 static int snd_asihpi_volume_mute_get(struct snd_kcontrol *kcontrol,
1479                                  struct snd_ctl_elem_value *ucontrol)
1480 {
1481         u32 h_control = kcontrol->private_value;
1482         u32 mute;
1483
1484         hpi_handle_error(hpi_volume_get_mute(h_control, &mute));
1485         ucontrol->value.integer.value[0] = mute ? 0 : 1;
1486
1487         return 0;
1488 }
1489
1490 static int snd_asihpi_volume_mute_put(struct snd_kcontrol *kcontrol,
1491                                  struct snd_ctl_elem_value *ucontrol)
1492 {
1493         u32 h_control = kcontrol->private_value;
1494         int change = 1;
1495         /* HPI currently only supports all or none muting of multichannel volume
1496         ALSA Switch element has opposite sense to HPI mute: on==unmuted, off=muted
1497         */
1498         int mute =  ucontrol->value.integer.value[0] ? 0 : HPI_BITMASK_ALL_CHANNELS;
1499         hpi_handle_error(hpi_volume_set_mute(h_control, mute));
1500         return change;
1501 }
1502
1503 static int snd_asihpi_volume_add(struct snd_card_asihpi *asihpi,
1504                                  struct hpi_control *hpi_ctl)
1505 {
1506         struct snd_card *card = asihpi->card;
1507         struct snd_kcontrol_new snd_control;
1508         int err;
1509         u32 mute;
1510
1511         asihpi_ctl_init(&snd_control, hpi_ctl, "Volume");
1512         snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
1513                                 SNDRV_CTL_ELEM_ACCESS_TLV_READ;
1514         snd_control.info = snd_asihpi_volume_info;
1515         snd_control.get = snd_asihpi_volume_get;
1516         snd_control.put = snd_asihpi_volume_put;
1517         snd_control.tlv.p = db_scale_100;
1518
1519         err = ctl_add(card, &snd_control, asihpi);
1520         if (err)
1521                 return err;
1522
1523         if (hpi_volume_get_mute(hpi_ctl->h_control, &mute) == 0) {
1524                 asihpi_ctl_init(&snd_control, hpi_ctl, "Switch");
1525                 snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
1526                 snd_control.info = snd_asihpi_volume_mute_info;
1527                 snd_control.get = snd_asihpi_volume_mute_get;
1528                 snd_control.put = snd_asihpi_volume_mute_put;
1529                 err = ctl_add(card, &snd_control, asihpi);
1530         }
1531         return err;
1532 }
1533
1534 /*------------------------------------------------------------
1535    Level controls
1536  ------------------------------------------------------------*/
1537 static int snd_asihpi_level_info(struct snd_kcontrol *kcontrol,
1538                                  struct snd_ctl_elem_info *uinfo)
1539 {
1540         u32 h_control = kcontrol->private_value;
1541         u16 err;
1542         short min_gain_mB;
1543         short max_gain_mB;
1544         short step_gain_mB;
1545
1546         err =
1547             hpi_level_query_range(h_control, &min_gain_mB,
1548                                &max_gain_mB, &step_gain_mB);
1549         if (err) {
1550                 max_gain_mB = 2400;
1551                 min_gain_mB = -1000;
1552                 step_gain_mB = 100;
1553         }
1554
1555         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1556         uinfo->count = 2;
1557         uinfo->value.integer.min = min_gain_mB / HPI_UNITS_PER_dB;
1558         uinfo->value.integer.max = max_gain_mB / HPI_UNITS_PER_dB;
1559         uinfo->value.integer.step = step_gain_mB / HPI_UNITS_PER_dB;
1560         return 0;
1561 }
1562
1563 static int snd_asihpi_level_get(struct snd_kcontrol *kcontrol,
1564                                 struct snd_ctl_elem_value *ucontrol)
1565 {
1566         u32 h_control = kcontrol->private_value;
1567         short an_gain_mB[HPI_MAX_CHANNELS];
1568
1569         hpi_handle_error(hpi_level_get_gain(h_control, an_gain_mB));
1570         ucontrol->value.integer.value[0] =
1571             an_gain_mB[0] / HPI_UNITS_PER_dB;
1572         ucontrol->value.integer.value[1] =
1573             an_gain_mB[1] / HPI_UNITS_PER_dB;
1574
1575         return 0;
1576 }
1577
1578 static int snd_asihpi_level_put(struct snd_kcontrol *kcontrol,
1579                                 struct snd_ctl_elem_value *ucontrol)
1580 {
1581         int change;
1582         u32 h_control = kcontrol->private_value;
1583         short an_gain_mB[HPI_MAX_CHANNELS];
1584
1585         an_gain_mB[0] =
1586             (ucontrol->value.integer.value[0]) * HPI_UNITS_PER_dB;
1587         an_gain_mB[1] =
1588             (ucontrol->value.integer.value[1]) * HPI_UNITS_PER_dB;
1589         /*  change = asihpi->mixer_level[addr][0] != left ||
1590            asihpi->mixer_level[addr][1] != right;
1591          */
1592         change = 1;
1593         hpi_handle_error(hpi_level_set_gain(h_control, an_gain_mB));
1594         return change;
1595 }
1596
1597 static const DECLARE_TLV_DB_SCALE(db_scale_level, -1000, 100, 0);
1598
1599 static int snd_asihpi_level_add(struct snd_card_asihpi *asihpi,
1600                                 struct hpi_control *hpi_ctl)
1601 {
1602         struct snd_card *card = asihpi->card;
1603         struct snd_kcontrol_new snd_control;
1604
1605         /* can't use 'volume' cos some nodes have volume as well */
1606         asihpi_ctl_init(&snd_control, hpi_ctl, "Level");
1607         snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
1608                                 SNDRV_CTL_ELEM_ACCESS_TLV_READ;
1609         snd_control.info = snd_asihpi_level_info;
1610         snd_control.get = snd_asihpi_level_get;
1611         snd_control.put = snd_asihpi_level_put;
1612         snd_control.tlv.p = db_scale_level;
1613
1614         return ctl_add(card, &snd_control, asihpi);
1615 }
1616
1617 /*------------------------------------------------------------
1618    AESEBU controls
1619  ------------------------------------------------------------*/
1620
1621 /* AESEBU format */
1622 static const char * const asihpi_aesebu_format_names[] = {
1623         "N/A", "S/PDIF", "AES/EBU" };
1624
1625 static int snd_asihpi_aesebu_format_info(struct snd_kcontrol *kcontrol,
1626                                   struct snd_ctl_elem_info *uinfo)
1627 {
1628         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1629         uinfo->count = 1;
1630         uinfo->value.enumerated.items = 3;
1631
1632         if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
1633                 uinfo->value.enumerated.item =
1634                         uinfo->value.enumerated.items - 1;
1635
1636         strcpy(uinfo->value.enumerated.name,
1637                 asihpi_aesebu_format_names[uinfo->value.enumerated.item]);
1638
1639         return 0;
1640 }
1641
1642 static int snd_asihpi_aesebu_format_get(struct snd_kcontrol *kcontrol,
1643                         struct snd_ctl_elem_value *ucontrol,
1644                         u16 (*func)(u32, u16 *))
1645 {
1646         u32 h_control = kcontrol->private_value;
1647         u16 source, err;
1648
1649         err = func(h_control, &source);
1650
1651         /* default to N/A */
1652         ucontrol->value.enumerated.item[0] = 0;
1653         /* return success but set the control to N/A */
1654         if (err)
1655                 return 0;
1656         if (source == HPI_AESEBU_FORMAT_SPDIF)
1657                 ucontrol->value.enumerated.item[0] = 1;
1658         if (source == HPI_AESEBU_FORMAT_AESEBU)
1659                 ucontrol->value.enumerated.item[0] = 2;
1660
1661         return 0;
1662 }
1663
1664 static int snd_asihpi_aesebu_format_put(struct snd_kcontrol *kcontrol,
1665                         struct snd_ctl_elem_value *ucontrol,
1666                          u16 (*func)(u32, u16))
1667 {
1668         u32 h_control = kcontrol->private_value;
1669
1670         /* default to S/PDIF */
1671         u16 source = HPI_AESEBU_FORMAT_SPDIF;
1672
1673         if (ucontrol->value.enumerated.item[0] == 1)
1674                 source = HPI_AESEBU_FORMAT_SPDIF;
1675         if (ucontrol->value.enumerated.item[0] == 2)
1676                 source = HPI_AESEBU_FORMAT_AESEBU;
1677
1678         if (func(h_control, source) != 0)
1679                 return -EINVAL;
1680
1681         return 1;
1682 }
1683
1684 static int snd_asihpi_aesebu_rx_format_get(struct snd_kcontrol *kcontrol,
1685                                  struct snd_ctl_elem_value *ucontrol) {
1686         return snd_asihpi_aesebu_format_get(kcontrol, ucontrol,
1687                                         hpi_aesebu_receiver_get_format);
1688 }
1689
1690 static int snd_asihpi_aesebu_rx_format_put(struct snd_kcontrol *kcontrol,
1691                                  struct snd_ctl_elem_value *ucontrol) {
1692         return snd_asihpi_aesebu_format_put(kcontrol, ucontrol,
1693                                         hpi_aesebu_receiver_set_format);
1694 }
1695
1696 static int snd_asihpi_aesebu_rxstatus_info(struct snd_kcontrol *kcontrol,
1697                                   struct snd_ctl_elem_info *uinfo)
1698 {
1699         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1700         uinfo->count = 1;
1701
1702         uinfo->value.integer.min = 0;
1703         uinfo->value.integer.max = 0X1F;
1704         uinfo->value.integer.step = 1;
1705
1706         return 0;
1707 }
1708
1709 static int snd_asihpi_aesebu_rxstatus_get(struct snd_kcontrol *kcontrol,
1710                                  struct snd_ctl_elem_value *ucontrol) {
1711
1712         u32 h_control = kcontrol->private_value;
1713         u16 status;
1714
1715         hpi_handle_error(hpi_aesebu_receiver_get_error_status(
1716                                          h_control, &status));
1717         ucontrol->value.integer.value[0] = status;
1718         return 0;
1719 }
1720
1721 static int snd_asihpi_aesebu_rx_add(struct snd_card_asihpi *asihpi,
1722                                     struct hpi_control *hpi_ctl)
1723 {
1724         struct snd_card *card = asihpi->card;
1725         struct snd_kcontrol_new snd_control;
1726
1727         asihpi_ctl_init(&snd_control, hpi_ctl, "Format");
1728         snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
1729         snd_control.info = snd_asihpi_aesebu_format_info;
1730         snd_control.get = snd_asihpi_aesebu_rx_format_get;
1731         snd_control.put = snd_asihpi_aesebu_rx_format_put;
1732
1733
1734         if (ctl_add(card, &snd_control, asihpi) < 0)
1735                 return -EINVAL;
1736
1737         asihpi_ctl_init(&snd_control, hpi_ctl, "Status");
1738         snd_control.access =
1739             SNDRV_CTL_ELEM_ACCESS_VOLATILE | SNDRV_CTL_ELEM_ACCESS_READ;
1740         snd_control.info = snd_asihpi_aesebu_rxstatus_info;
1741         snd_control.get = snd_asihpi_aesebu_rxstatus_get;
1742
1743         return ctl_add(card, &snd_control, asihpi);
1744 }
1745
1746 static int snd_asihpi_aesebu_tx_format_get(struct snd_kcontrol *kcontrol,
1747                                  struct snd_ctl_elem_value *ucontrol) {
1748         return snd_asihpi_aesebu_format_get(kcontrol, ucontrol,
1749                                         hpi_aesebu_transmitter_get_format);
1750 }
1751
1752 static int snd_asihpi_aesebu_tx_format_put(struct snd_kcontrol *kcontrol,
1753                                  struct snd_ctl_elem_value *ucontrol) {
1754         return snd_asihpi_aesebu_format_put(kcontrol, ucontrol,
1755                                         hpi_aesebu_transmitter_set_format);
1756 }
1757
1758
1759 static int snd_asihpi_aesebu_tx_add(struct snd_card_asihpi *asihpi,
1760                                     struct hpi_control *hpi_ctl)
1761 {
1762         struct snd_card *card = asihpi->card;
1763         struct snd_kcontrol_new snd_control;
1764
1765         asihpi_ctl_init(&snd_control, hpi_ctl, "Format");
1766         snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
1767         snd_control.info = snd_asihpi_aesebu_format_info;
1768         snd_control.get = snd_asihpi_aesebu_tx_format_get;
1769         snd_control.put = snd_asihpi_aesebu_tx_format_put;
1770
1771         return ctl_add(card, &snd_control, asihpi);
1772 }
1773
1774 /*------------------------------------------------------------
1775    Tuner controls
1776  ------------------------------------------------------------*/
1777
1778 /* Gain */
1779
1780 static int snd_asihpi_tuner_gain_info(struct snd_kcontrol *kcontrol,
1781                                   struct snd_ctl_elem_info *uinfo)
1782 {
1783         u32 h_control = kcontrol->private_value;
1784         u16 err;
1785         short idx;
1786         u16 gain_range[3];
1787
1788         for (idx = 0; idx < 3; idx++) {
1789                 err = hpi_tuner_query_gain(h_control,
1790                                           idx, &gain_range[idx]);
1791                 if (err != 0)
1792                         return err;
1793         }
1794
1795         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1796         uinfo->count = 1;
1797         uinfo->value.integer.min = ((int)gain_range[0]) / HPI_UNITS_PER_dB;
1798         uinfo->value.integer.max = ((int)gain_range[1]) / HPI_UNITS_PER_dB;
1799         uinfo->value.integer.step = ((int) gain_range[2]) / HPI_UNITS_PER_dB;
1800         return 0;
1801 }
1802
1803 static int snd_asihpi_tuner_gain_get(struct snd_kcontrol *kcontrol,
1804                                  struct snd_ctl_elem_value *ucontrol)
1805 {
1806         /*
1807         struct snd_card_asihpi *asihpi = snd_kcontrol_chip(kcontrol);
1808         */
1809         u32 h_control = kcontrol->private_value;
1810         short gain;
1811
1812         hpi_handle_error(hpi_tuner_get_gain(h_control, &gain));
1813         ucontrol->value.integer.value[0] = gain / HPI_UNITS_PER_dB;
1814
1815         return 0;
1816 }
1817
1818 static int snd_asihpi_tuner_gain_put(struct snd_kcontrol *kcontrol,
1819                                  struct snd_ctl_elem_value *ucontrol)
1820 {
1821         /*
1822         struct snd_card_asihpi *asihpi = snd_kcontrol_chip(kcontrol);
1823         */
1824         u32 h_control = kcontrol->private_value;
1825         short gain;
1826
1827         gain = (ucontrol->value.integer.value[0]) * HPI_UNITS_PER_dB;
1828         hpi_handle_error(hpi_tuner_set_gain(h_control, gain));
1829
1830         return 1;
1831 }
1832
1833 /* Band  */
1834
1835 static int asihpi_tuner_band_query(struct snd_kcontrol *kcontrol,
1836                                         u16 *band_list, u32 len) {
1837         u32 h_control = kcontrol->private_value;
1838         u16 err = 0;
1839         u32 i;
1840
1841         for (i = 0; i < len; i++) {
1842                 err = hpi_tuner_query_band(
1843                                 h_control, i, &band_list[i]);
1844                 if (err != 0)
1845                         break;
1846         }
1847
1848         if (err && (err != HPI_ERROR_INVALID_OBJ_INDEX))
1849                 return -EIO;
1850
1851         return i;
1852 }
1853
1854 static int snd_asihpi_tuner_band_info(struct snd_kcontrol *kcontrol,
1855                                   struct snd_ctl_elem_info *uinfo)
1856 {
1857         u16 tuner_bands[HPI_TUNER_BAND_LAST];
1858         int num_bands = 0;
1859
1860         num_bands = asihpi_tuner_band_query(kcontrol, tuner_bands,
1861                                 HPI_TUNER_BAND_LAST);
1862
1863         if (num_bands < 0)
1864                 return num_bands;
1865
1866         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1867         uinfo->count = 1;
1868         uinfo->value.enumerated.items = num_bands;
1869
1870         if (num_bands > 0) {
1871                 if (uinfo->value.enumerated.item >=
1872                                         uinfo->value.enumerated.items)
1873                         uinfo->value.enumerated.item =
1874                                 uinfo->value.enumerated.items - 1;
1875
1876                 strcpy(uinfo->value.enumerated.name,
1877                         asihpi_tuner_band_names[
1878                                 tuner_bands[uinfo->value.enumerated.item]]);
1879
1880         }
1881         return 0;
1882 }
1883
1884 static int snd_asihpi_tuner_band_get(struct snd_kcontrol *kcontrol,
1885                                  struct snd_ctl_elem_value *ucontrol)
1886 {
1887         u32 h_control = kcontrol->private_value;
1888         /*
1889         struct snd_card_asihpi *asihpi = snd_kcontrol_chip(kcontrol);
1890         */
1891         u16 band, idx;
1892         u16 tuner_bands[HPI_TUNER_BAND_LAST];
1893         u32 num_bands = 0;
1894
1895         num_bands = asihpi_tuner_band_query(kcontrol, tuner_bands,
1896                                 HPI_TUNER_BAND_LAST);
1897
1898         hpi_handle_error(hpi_tuner_get_band(h_control, &band));
1899
1900         ucontrol->value.enumerated.item[0] = -1;
1901         for (idx = 0; idx < HPI_TUNER_BAND_LAST; idx++)
1902                 if (tuner_bands[idx] == band) {
1903                         ucontrol->value.enumerated.item[0] = idx;
1904                         break;
1905                 }
1906
1907         return 0;
1908 }
1909
1910 static int snd_asihpi_tuner_band_put(struct snd_kcontrol *kcontrol,
1911                                  struct snd_ctl_elem_value *ucontrol)
1912 {
1913         /*
1914         struct snd_card_asihpi *asihpi = snd_kcontrol_chip(kcontrol);
1915         */
1916         u32 h_control = kcontrol->private_value;
1917         unsigned int idx;
1918         u16 band;
1919         u16 tuner_bands[HPI_TUNER_BAND_LAST];
1920         u32 num_bands = 0;
1921
1922         num_bands = asihpi_tuner_band_query(kcontrol, tuner_bands,
1923                         HPI_TUNER_BAND_LAST);
1924
1925         idx = ucontrol->value.enumerated.item[0];
1926         if (idx >= ARRAY_SIZE(tuner_bands))
1927                 idx = ARRAY_SIZE(tuner_bands) - 1;
1928         band = tuner_bands[idx];
1929         hpi_handle_error(hpi_tuner_set_band(h_control, band));
1930
1931         return 1;
1932 }
1933
1934 /* Freq */
1935
1936 static int snd_asihpi_tuner_freq_info(struct snd_kcontrol *kcontrol,
1937                                   struct snd_ctl_elem_info *uinfo)
1938 {
1939         u32 h_control = kcontrol->private_value;
1940         u16 err;
1941         u16 tuner_bands[HPI_TUNER_BAND_LAST];
1942         u16 num_bands = 0, band_iter, idx;
1943         u32 freq_range[3], temp_freq_range[3];
1944
1945         num_bands = asihpi_tuner_band_query(kcontrol, tuner_bands,
1946                         HPI_TUNER_BAND_LAST);
1947
1948         freq_range[0] = INT_MAX;
1949         freq_range[1] = 0;
1950         freq_range[2] = INT_MAX;
1951
1952         for (band_iter = 0; band_iter < num_bands; band_iter++) {
1953                 for (idx = 0; idx < 3; idx++) {
1954                         err = hpi_tuner_query_frequency(h_control,
1955                                 idx, tuner_bands[band_iter],
1956                                 &temp_freq_range[idx]);
1957                         if (err != 0)
1958                                 return err;
1959                 }
1960
1961                 /* skip band with bogus stepping */
1962                 if (temp_freq_range[2] <= 0)
1963                         continue;
1964
1965                 if (temp_freq_range[0] < freq_range[0])
1966                         freq_range[0] = temp_freq_range[0];
1967                 if (temp_freq_range[1] > freq_range[1])
1968                         freq_range[1] = temp_freq_range[1];
1969                 if (temp_freq_range[2] < freq_range[2])
1970                         freq_range[2] = temp_freq_range[2];
1971         }
1972
1973         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1974         uinfo->count = 1;
1975         uinfo->value.integer.min = ((int)freq_range[0]);
1976         uinfo->value.integer.max = ((int)freq_range[1]);
1977         uinfo->value.integer.step = ((int)freq_range[2]);
1978         return 0;
1979 }
1980
1981 static int snd_asihpi_tuner_freq_get(struct snd_kcontrol *kcontrol,
1982                                  struct snd_ctl_elem_value *ucontrol)
1983 {
1984         u32 h_control = kcontrol->private_value;
1985         u32 freq;
1986
1987         hpi_handle_error(hpi_tuner_get_frequency(h_control, &freq));
1988         ucontrol->value.integer.value[0] = freq;
1989
1990         return 0;
1991 }
1992
1993 static int snd_asihpi_tuner_freq_put(struct snd_kcontrol *kcontrol,
1994                                  struct snd_ctl_elem_value *ucontrol)
1995 {
1996         u32 h_control = kcontrol->private_value;
1997         u32 freq;
1998
1999         freq = ucontrol->value.integer.value[0];
2000         hpi_handle_error(hpi_tuner_set_frequency(h_control, freq));
2001
2002         return 1;
2003 }
2004
2005 /* Tuner control group initializer  */
2006 static int snd_asihpi_tuner_add(struct snd_card_asihpi *asihpi,
2007                                 struct hpi_control *hpi_ctl)
2008 {
2009         struct snd_card *card = asihpi->card;
2010         struct snd_kcontrol_new snd_control;
2011
2012         snd_control.private_value = hpi_ctl->h_control;
2013         snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
2014
2015         if (!hpi_tuner_get_gain(hpi_ctl->h_control, NULL)) {
2016                 asihpi_ctl_init(&snd_control, hpi_ctl, "Gain");
2017                 snd_control.info = snd_asihpi_tuner_gain_info;
2018                 snd_control.get = snd_asihpi_tuner_gain_get;
2019                 snd_control.put = snd_asihpi_tuner_gain_put;
2020
2021                 if (ctl_add(card, &snd_control, asihpi) < 0)
2022                         return -EINVAL;
2023         }
2024
2025         asihpi_ctl_init(&snd_control, hpi_ctl, "Band");
2026         snd_control.info = snd_asihpi_tuner_band_info;
2027         snd_control.get = snd_asihpi_tuner_band_get;
2028         snd_control.put = snd_asihpi_tuner_band_put;
2029
2030         if (ctl_add(card, &snd_control, asihpi) < 0)
2031                 return -EINVAL;
2032
2033         asihpi_ctl_init(&snd_control, hpi_ctl, "Freq");
2034         snd_control.info = snd_asihpi_tuner_freq_info;
2035         snd_control.get = snd_asihpi_tuner_freq_get;
2036         snd_control.put = snd_asihpi_tuner_freq_put;
2037
2038         return ctl_add(card, &snd_control, asihpi);
2039 }
2040
2041 /*------------------------------------------------------------
2042    Meter controls
2043  ------------------------------------------------------------*/
2044 static int snd_asihpi_meter_info(struct snd_kcontrol *kcontrol,
2045                                  struct snd_ctl_elem_info *uinfo)
2046 {
2047         u32 h_control = kcontrol->private_value;
2048         u32 count;
2049         u16 err;
2050         err = hpi_meter_query_channels(h_control, &count);
2051         if (err)
2052                 count = HPI_MAX_CHANNELS;
2053
2054         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2055         uinfo->count = count;
2056         uinfo->value.integer.min = 0;
2057         uinfo->value.integer.max = 0x7FFFFFFF;
2058         return 0;
2059 }
2060
2061 /* linear values for 10dB steps */
2062 static int log2lin[] = {
2063         0x7FFFFFFF, /* 0dB */
2064         679093956,
2065         214748365,
2066          67909396,
2067          21474837,
2068           6790940,
2069           2147484, /* -60dB */
2070            679094,
2071            214748, /* -80 */
2072             67909,
2073             21475, /* -100 */
2074              6791,
2075              2147,
2076               679,
2077               214,
2078                68,
2079                21,
2080                 7,
2081                 2
2082 };
2083
2084 static int snd_asihpi_meter_get(struct snd_kcontrol *kcontrol,
2085                                 struct snd_ctl_elem_value *ucontrol)
2086 {
2087         u32 h_control = kcontrol->private_value;
2088         short an_gain_mB[HPI_MAX_CHANNELS], i;
2089         u16 err;
2090
2091         err = hpi_meter_get_peak(h_control, an_gain_mB);
2092
2093         for (i = 0; i < HPI_MAX_CHANNELS; i++) {
2094                 if (err) {
2095                         ucontrol->value.integer.value[i] = 0;
2096                 } else if (an_gain_mB[i] >= 0) {
2097                         ucontrol->value.integer.value[i] =
2098                                 an_gain_mB[i] << 16;
2099                 } else {
2100                         /* -ve is log value in millibels < -60dB,
2101                         * convert to (roughly!) linear,
2102                         */
2103                         ucontrol->value.integer.value[i] =
2104                                         log2lin[an_gain_mB[i] / -1000];
2105                 }
2106         }
2107         return 0;
2108 }
2109
2110 static int snd_asihpi_meter_add(struct snd_card_asihpi *asihpi,
2111                                 struct hpi_control *hpi_ctl, int subidx)
2112 {
2113         struct snd_card *card = asihpi->card;
2114         struct snd_kcontrol_new snd_control;
2115
2116         asihpi_ctl_init(&snd_control, hpi_ctl, "Meter");
2117         snd_control.access =
2118             SNDRV_CTL_ELEM_ACCESS_VOLATILE | SNDRV_CTL_ELEM_ACCESS_READ;
2119         snd_control.info = snd_asihpi_meter_info;
2120         snd_control.get = snd_asihpi_meter_get;
2121
2122         snd_control.index = subidx;
2123
2124         return ctl_add(card, &snd_control, asihpi);
2125 }
2126
2127 /*------------------------------------------------------------
2128    Multiplexer controls
2129  ------------------------------------------------------------*/
2130 static int snd_card_asihpi_mux_count_sources(struct snd_kcontrol *snd_control)
2131 {
2132         u32 h_control = snd_control->private_value;
2133         struct hpi_control hpi_ctl;
2134         int s, err;
2135         for (s = 0; s < 32; s++) {
2136                 err = hpi_multiplexer_query_source(h_control, s,
2137                                                   &hpi_ctl.
2138                                                   src_node_type,
2139                                                   &hpi_ctl.
2140                                                   src_node_index);
2141                 if (err)
2142                         break;
2143         }
2144         return s;
2145 }
2146
2147 static int snd_asihpi_mux_info(struct snd_kcontrol *kcontrol,
2148                                struct snd_ctl_elem_info *uinfo)
2149 {
2150         int err;
2151         u16 src_node_type, src_node_index;
2152         u32 h_control = kcontrol->private_value;
2153
2154         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2155         uinfo->count = 1;
2156         uinfo->value.enumerated.items =
2157             snd_card_asihpi_mux_count_sources(kcontrol);
2158
2159         if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
2160                 uinfo->value.enumerated.item =
2161                     uinfo->value.enumerated.items - 1;
2162
2163         err =
2164             hpi_multiplexer_query_source(h_control,
2165                                         uinfo->value.enumerated.item,
2166                                         &src_node_type, &src_node_index);
2167
2168         sprintf(uinfo->value.enumerated.name, "%s %d",
2169                 asihpi_src_names[src_node_type - HPI_SOURCENODE_NONE],
2170                 src_node_index);
2171         return 0;
2172 }
2173
2174 static int snd_asihpi_mux_get(struct snd_kcontrol *kcontrol,
2175                               struct snd_ctl_elem_value *ucontrol)
2176 {
2177         u32 h_control = kcontrol->private_value;
2178         u16 source_type, source_index;
2179         u16 src_node_type, src_node_index;
2180         int s;
2181
2182         hpi_handle_error(hpi_multiplexer_get_source(h_control,
2183                                 &source_type, &source_index));
2184         /* Should cache this search result! */
2185         for (s = 0; s < 256; s++) {
2186                 if (hpi_multiplexer_query_source(h_control, s,
2187                                             &src_node_type, &src_node_index))
2188                         break;
2189
2190                 if ((source_type == src_node_type)
2191                     && (source_index == src_node_index)) {
2192                         ucontrol->value.enumerated.item[0] = s;
2193                         return 0;
2194                 }
2195         }
2196         snd_printd(KERN_WARNING
2197                 "Control %x failed to match mux source %hu %hu\n",
2198                 h_control, source_type, source_index);
2199         ucontrol->value.enumerated.item[0] = 0;
2200         return 0;
2201 }
2202
2203 static int snd_asihpi_mux_put(struct snd_kcontrol *kcontrol,
2204                               struct snd_ctl_elem_value *ucontrol)
2205 {
2206         int change;
2207         u32 h_control = kcontrol->private_value;
2208         u16 source_type, source_index;
2209         u16 e;
2210
2211         change = 1;
2212
2213         e = hpi_multiplexer_query_source(h_control,
2214                                     ucontrol->value.enumerated.item[0],
2215                                     &source_type, &source_index);
2216         if (!e)
2217                 hpi_handle_error(
2218                         hpi_multiplexer_set_source(h_control,
2219                                                 source_type, source_index));
2220         return change;
2221 }
2222
2223
2224 static int  snd_asihpi_mux_add(struct snd_card_asihpi *asihpi,
2225                                struct hpi_control *hpi_ctl)
2226 {
2227         struct snd_card *card = asihpi->card;
2228         struct snd_kcontrol_new snd_control;
2229
2230         asihpi_ctl_init(&snd_control, hpi_ctl, "Route");
2231         snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
2232         snd_control.info = snd_asihpi_mux_info;
2233         snd_control.get = snd_asihpi_mux_get;
2234         snd_control.put = snd_asihpi_mux_put;
2235
2236         return ctl_add(card, &snd_control, asihpi);
2237
2238 }
2239
2240 /*------------------------------------------------------------
2241    Channel mode controls
2242  ------------------------------------------------------------*/
2243 static int snd_asihpi_cmode_info(struct snd_kcontrol *kcontrol,
2244                                  struct snd_ctl_elem_info *uinfo)
2245 {
2246         static const char * const mode_names[HPI_CHANNEL_MODE_LAST + 1] = {
2247                 "invalid",
2248                 "Normal", "Swap",
2249                 "From Left", "From Right",
2250                 "To Left", "To Right"
2251         };
2252
2253         u32 h_control = kcontrol->private_value;
2254         u16 mode;
2255         int i;
2256         u16 mode_map[6];
2257         int valid_modes = 0;
2258
2259         /* HPI channel mode values can be from 1 to 6
2260         Some adapters only support a contiguous subset
2261         */
2262         for (i = 0; i < HPI_CHANNEL_MODE_LAST; i++)
2263                 if (!hpi_channel_mode_query_mode(
2264                         h_control, i, &mode)) {
2265                         mode_map[valid_modes] = mode;
2266                         valid_modes++;
2267                         }
2268
2269         if (!valid_modes)
2270                 return -EINVAL;
2271
2272         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2273         uinfo->count = 1;
2274         uinfo->value.enumerated.items = valid_modes;
2275
2276         if (uinfo->value.enumerated.item >= valid_modes)
2277                 uinfo->value.enumerated.item = valid_modes - 1;
2278
2279         strcpy(uinfo->value.enumerated.name,
2280                mode_names[mode_map[uinfo->value.enumerated.item]]);
2281
2282         return 0;
2283 }
2284
2285 static int snd_asihpi_cmode_get(struct snd_kcontrol *kcontrol,
2286                                 struct snd_ctl_elem_value *ucontrol)
2287 {
2288         u32 h_control = kcontrol->private_value;
2289         u16 mode;
2290
2291         if (hpi_channel_mode_get(h_control, &mode))
2292                 mode = 1;
2293
2294         ucontrol->value.enumerated.item[0] = mode - 1;
2295
2296         return 0;
2297 }
2298
2299 static int snd_asihpi_cmode_put(struct snd_kcontrol *kcontrol,
2300                                 struct snd_ctl_elem_value *ucontrol)
2301 {
2302         int change;
2303         u32 h_control = kcontrol->private_value;
2304
2305         change = 1;
2306
2307         hpi_handle_error(hpi_channel_mode_set(h_control,
2308                            ucontrol->value.enumerated.item[0] + 1));
2309         return change;
2310 }
2311
2312
2313 static int snd_asihpi_cmode_add(struct snd_card_asihpi *asihpi,
2314                                 struct hpi_control *hpi_ctl)
2315 {
2316         struct snd_card *card = asihpi->card;
2317         struct snd_kcontrol_new snd_control;
2318
2319         asihpi_ctl_init(&snd_control, hpi_ctl, "Mode");
2320         snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
2321         snd_control.info = snd_asihpi_cmode_info;
2322         snd_control.get = snd_asihpi_cmode_get;
2323         snd_control.put = snd_asihpi_cmode_put;
2324
2325         return ctl_add(card, &snd_control, asihpi);
2326 }
2327
2328 /*------------------------------------------------------------
2329    Sampleclock source  controls
2330  ------------------------------------------------------------*/
2331 static char *sampleclock_sources[MAX_CLOCKSOURCES] = {
2332         "N/A", "Local PLL", "Digital Sync", "Word External", "Word Header",
2333         "SMPTE", "Digital1", "Auto", "Network", "Invalid",
2334         "Prev Module",
2335         "Digital2", "Digital3", "Digital4", "Digital5",
2336         "Digital6", "Digital7", "Digital8"};
2337
2338 static int snd_asihpi_clksrc_info(struct snd_kcontrol *kcontrol,
2339                                   struct snd_ctl_elem_info *uinfo)
2340 {
2341         struct snd_card_asihpi *asihpi =
2342                         (struct snd_card_asihpi *)(kcontrol->private_data);
2343         struct clk_cache *clkcache = &asihpi->cc;
2344         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2345         uinfo->count = 1;
2346         uinfo->value.enumerated.items = clkcache->count;
2347
2348         if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
2349                 uinfo->value.enumerated.item =
2350                                 uinfo->value.enumerated.items - 1;
2351
2352         strcpy(uinfo->value.enumerated.name,
2353                clkcache->s[uinfo->value.enumerated.item].name);
2354         return 0;
2355 }
2356
2357 static int snd_asihpi_clksrc_get(struct snd_kcontrol *kcontrol,
2358                                  struct snd_ctl_elem_value *ucontrol)
2359 {
2360         struct snd_card_asihpi *asihpi =
2361                         (struct snd_card_asihpi *)(kcontrol->private_data);
2362         struct clk_cache *clkcache = &asihpi->cc;
2363         u32 h_control = kcontrol->private_value;
2364         u16 source, srcindex = 0;
2365         int i;
2366
2367         ucontrol->value.enumerated.item[0] = 0;
2368         if (hpi_sample_clock_get_source(h_control, &source))
2369                 source = 0;
2370
2371         if (source == HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT)
2372                 if (hpi_sample_clock_get_source_index(h_control, &srcindex))
2373                         srcindex = 0;
2374
2375         for (i = 0; i < clkcache->count; i++)
2376                 if ((clkcache->s[i].source == source) &&
2377                         (clkcache->s[i].index == srcindex))
2378                         break;
2379
2380         ucontrol->value.enumerated.item[0] = i;
2381
2382         return 0;
2383 }
2384
2385 static int snd_asihpi_clksrc_put(struct snd_kcontrol *kcontrol,
2386                                  struct snd_ctl_elem_value *ucontrol)
2387 {
2388         struct snd_card_asihpi *asihpi =
2389                         (struct snd_card_asihpi *)(kcontrol->private_data);
2390         struct clk_cache *clkcache = &asihpi->cc;
2391         unsigned int item;
2392         int change;
2393         u32 h_control = kcontrol->private_value;
2394
2395         change = 1;
2396         item = ucontrol->value.enumerated.item[0];
2397         if (item >= clkcache->count)
2398                 item = clkcache->count-1;
2399
2400         hpi_handle_error(hpi_sample_clock_set_source(
2401                                 h_control, clkcache->s[item].source));
2402
2403         if (clkcache->s[item].source == HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT)
2404                 hpi_handle_error(hpi_sample_clock_set_source_index(
2405                                 h_control, clkcache->s[item].index));
2406         return change;
2407 }
2408
2409 /*------------------------------------------------------------
2410    Clkrate controls
2411  ------------------------------------------------------------*/
2412 /* Need to change this to enumerated control with list of rates */
2413 static int snd_asihpi_clklocal_info(struct snd_kcontrol *kcontrol,
2414                                    struct snd_ctl_elem_info *uinfo)
2415 {
2416         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2417         uinfo->count = 1;
2418         uinfo->value.integer.min = 8000;
2419         uinfo->value.integer.max = 192000;
2420         uinfo->value.integer.step = 100;
2421
2422         return 0;
2423 }
2424
2425 static int snd_asihpi_clklocal_get(struct snd_kcontrol *kcontrol,
2426                                   struct snd_ctl_elem_value *ucontrol)
2427 {
2428         u32 h_control = kcontrol->private_value;
2429         u32 rate;
2430         u16 e;
2431
2432         e = hpi_sample_clock_get_local_rate(h_control, &rate);
2433         if (!e)
2434                 ucontrol->value.integer.value[0] = rate;
2435         else
2436                 ucontrol->value.integer.value[0] = 0;
2437         return 0;
2438 }
2439
2440 static int snd_asihpi_clklocal_put(struct snd_kcontrol *kcontrol,
2441                                   struct snd_ctl_elem_value *ucontrol)
2442 {
2443         int change;
2444         u32 h_control = kcontrol->private_value;
2445
2446         /*  change = asihpi->mixer_clkrate[addr][0] != left ||
2447            asihpi->mixer_clkrate[addr][1] != right;
2448          */
2449         change = 1;
2450         hpi_handle_error(hpi_sample_clock_set_local_rate(h_control,
2451                                       ucontrol->value.integer.value[0]));
2452         return change;
2453 }
2454
2455 static int snd_asihpi_clkrate_info(struct snd_kcontrol *kcontrol,
2456                                    struct snd_ctl_elem_info *uinfo)
2457 {
2458         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2459         uinfo->count = 1;
2460         uinfo->value.integer.min = 8000;
2461         uinfo->value.integer.max = 192000;
2462         uinfo->value.integer.step = 100;
2463
2464         return 0;
2465 }
2466
2467 static int snd_asihpi_clkrate_get(struct snd_kcontrol *kcontrol,
2468                                   struct snd_ctl_elem_value *ucontrol)
2469 {
2470         u32 h_control = kcontrol->private_value;
2471         u32 rate;
2472         u16 e;
2473
2474         e = hpi_sample_clock_get_sample_rate(h_control, &rate);
2475         if (!e)
2476                 ucontrol->value.integer.value[0] = rate;
2477         else
2478                 ucontrol->value.integer.value[0] = 0;
2479         return 0;
2480 }
2481
2482 static int snd_asihpi_sampleclock_add(struct snd_card_asihpi *asihpi,
2483                                       struct hpi_control *hpi_ctl)
2484 {
2485         struct snd_card *card = asihpi->card;
2486         struct snd_kcontrol_new snd_control;
2487
2488         struct clk_cache *clkcache = &asihpi->cc;
2489         u32 hSC =  hpi_ctl->h_control;
2490         int has_aes_in = 0;
2491         int i, j;
2492         u16 source;
2493
2494         snd_control.private_value = hpi_ctl->h_control;
2495
2496         clkcache->has_local = 0;
2497
2498         for (i = 0; i <= HPI_SAMPLECLOCK_SOURCE_LAST; i++) {
2499                 if  (hpi_sample_clock_query_source(hSC,
2500                                 i, &source))
2501                         break;
2502                 clkcache->s[i].source = source;
2503                 clkcache->s[i].index = 0;
2504                 clkcache->s[i].name = sampleclock_sources[source];
2505                 if (source == HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT)
2506                         has_aes_in = 1;
2507                 if (source == HPI_SAMPLECLOCK_SOURCE_LOCAL)
2508                         clkcache->has_local = 1;
2509         }
2510         if (has_aes_in)
2511                 /* already will have picked up index 0 above */
2512                 for (j = 1; j < 8; j++) {
2513                         if (hpi_sample_clock_query_source_index(hSC,
2514                                 j, HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT,
2515                                 &source))
2516                                 break;
2517                         clkcache->s[i].source =
2518                                 HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT;
2519                         clkcache->s[i].index = j;
2520                         clkcache->s[i].name = sampleclock_sources[
2521                                         j+HPI_SAMPLECLOCK_SOURCE_LAST];
2522                         i++;
2523                 }
2524         clkcache->count = i;
2525
2526         asihpi_ctl_init(&snd_control, hpi_ctl, "Source");
2527         snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE ;
2528         snd_control.info = snd_asihpi_clksrc_info;
2529         snd_control.get = snd_asihpi_clksrc_get;
2530         snd_control.put = snd_asihpi_clksrc_put;
2531         if (ctl_add(card, &snd_control, asihpi) < 0)
2532                 return -EINVAL;
2533
2534
2535         if (clkcache->has_local) {
2536                 asihpi_ctl_init(&snd_control, hpi_ctl, "Localrate");
2537                 snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE ;
2538                 snd_control.info = snd_asihpi_clklocal_info;
2539                 snd_control.get = snd_asihpi_clklocal_get;
2540                 snd_control.put = snd_asihpi_clklocal_put;
2541
2542
2543                 if (ctl_add(card, &snd_control, asihpi) < 0)
2544                         return -EINVAL;
2545         }
2546
2547         asihpi_ctl_init(&snd_control, hpi_ctl, "Rate");
2548         snd_control.access =
2549             SNDRV_CTL_ELEM_ACCESS_VOLATILE | SNDRV_CTL_ELEM_ACCESS_READ;
2550         snd_control.info = snd_asihpi_clkrate_info;
2551         snd_control.get = snd_asihpi_clkrate_get;
2552
2553         return ctl_add(card, &snd_control, asihpi);
2554 }
2555 /*------------------------------------------------------------
2556    Mixer
2557  ------------------------------------------------------------*/
2558
2559 static int snd_card_asihpi_mixer_new(struct snd_card_asihpi *asihpi)
2560 {
2561         struct snd_card *card;
2562         unsigned int idx = 0;
2563         unsigned int subindex = 0;
2564         int err;
2565         struct hpi_control hpi_ctl, prev_ctl;
2566
2567         if (snd_BUG_ON(!asihpi))
2568                 return -EINVAL;
2569         card = asihpi->card;
2570         strcpy(card->mixername, "Asihpi Mixer");
2571
2572         err =
2573             hpi_mixer_open(asihpi->hpi->adapter->index,
2574                           &asihpi->h_mixer);
2575         hpi_handle_error(err);
2576         if (err)
2577                 return -err;
2578
2579         memset(&prev_ctl, 0, sizeof(prev_ctl));
2580         prev_ctl.control_type = -1;
2581
2582         for (idx = 0; idx < 2000; idx++) {
2583                 err = hpi_mixer_get_control_by_index(
2584                                 asihpi->h_mixer,
2585                                 idx,
2586                                 &hpi_ctl.src_node_type,
2587                                 &hpi_ctl.src_node_index,
2588                                 &hpi_ctl.dst_node_type,
2589                                 &hpi_ctl.dst_node_index,
2590                                 &hpi_ctl.control_type,
2591                                 &hpi_ctl.h_control);
2592                 if (err) {
2593                         if (err == HPI_ERROR_CONTROL_DISABLED) {
2594                                 if (mixer_dump)
2595                                         snd_printk(KERN_INFO
2596                                                    "Disabled HPI Control(%d)\n",
2597                                                    idx);
2598                                 continue;
2599                         } else
2600                                 break;
2601
2602                 }
2603
2604                 hpi_ctl.src_node_type -= HPI_SOURCENODE_NONE;
2605                 hpi_ctl.dst_node_type -= HPI_DESTNODE_NONE;
2606
2607                 /* ASI50xx in SSX mode has multiple meters on the same node.
2608                    Use subindex to create distinct ALSA controls
2609                    for any duplicated controls.
2610                 */
2611                 if ((hpi_ctl.control_type == prev_ctl.control_type) &&
2612                     (hpi_ctl.src_node_type == prev_ctl.src_node_type) &&
2613                     (hpi_ctl.src_node_index == prev_ctl.src_node_index) &&
2614                     (hpi_ctl.dst_node_type == prev_ctl.dst_node_type) &&
2615                     (hpi_ctl.dst_node_index == prev_ctl.dst_node_index))
2616                         subindex++;
2617                 else
2618                         subindex = 0;
2619
2620                 prev_ctl = hpi_ctl;
2621
2622                 switch (hpi_ctl.control_type) {
2623                 case HPI_CONTROL_VOLUME:
2624                         err = snd_asihpi_volume_add(asihpi, &hpi_ctl);
2625                         break;
2626                 case HPI_CONTROL_LEVEL:
2627                         err = snd_asihpi_level_add(asihpi, &hpi_ctl);
2628                         break;
2629                 case HPI_CONTROL_MULTIPLEXER:
2630                         err = snd_asihpi_mux_add(asihpi, &hpi_ctl);
2631                         break;
2632                 case HPI_CONTROL_CHANNEL_MODE:
2633                         err = snd_asihpi_cmode_add(asihpi, &hpi_ctl);
2634                         break;
2635                 case HPI_CONTROL_METER:
2636                         err = snd_asihpi_meter_add(asihpi, &hpi_ctl, subindex);
2637                         break;
2638                 case HPI_CONTROL_SAMPLECLOCK:
2639                         err = snd_asihpi_sampleclock_add(
2640                                                 asihpi, &hpi_ctl);
2641                         break;
2642                 case HPI_CONTROL_CONNECTION:    /* ignore these */
2643                         continue;
2644                 case HPI_CONTROL_TUNER:
2645                         err = snd_asihpi_tuner_add(asihpi, &hpi_ctl);
2646                         break;
2647                 case HPI_CONTROL_AESEBU_TRANSMITTER:
2648                         err = snd_asihpi_aesebu_tx_add(asihpi, &hpi_ctl);
2649                         break;
2650                 case HPI_CONTROL_AESEBU_RECEIVER:
2651                         err = snd_asihpi_aesebu_rx_add(asihpi, &hpi_ctl);
2652                         break;
2653                 case HPI_CONTROL_VOX:
2654                 case HPI_CONTROL_BITSTREAM:
2655                 case HPI_CONTROL_MICROPHONE:
2656                 case HPI_CONTROL_PARAMETRIC_EQ:
2657                 case HPI_CONTROL_COMPANDER:
2658                 default:
2659                         if (mixer_dump)
2660                                 snd_printk(KERN_INFO
2661                                         "Untranslated HPI Control"
2662                                         "(%d) %d %d %d %d %d\n",
2663                                         idx,
2664                                         hpi_ctl.control_type,
2665                                         hpi_ctl.src_node_type,
2666                                         hpi_ctl.src_node_index,
2667                                         hpi_ctl.dst_node_type,
2668                                         hpi_ctl.dst_node_index);
2669                         continue;
2670                 }
2671                 if (err < 0)
2672                         return err;
2673         }
2674         if (HPI_ERROR_INVALID_OBJ_INDEX != err)
2675                 hpi_handle_error(err);
2676
2677         snd_printk(KERN_INFO "%d mixer controls found\n", idx);
2678
2679         return 0;
2680 }
2681
2682 /*------------------------------------------------------------
2683    /proc interface
2684  ------------------------------------------------------------*/
2685
2686 static void
2687 snd_asihpi_proc_read(struct snd_info_entry *entry,
2688                         struct snd_info_buffer *buffer)
2689 {
2690         struct snd_card_asihpi *asihpi = entry->private_data;
2691         u32 h_control;
2692         u32 rate = 0;
2693         u16 source = 0;
2694
2695         u16 num_outstreams;
2696         u16 num_instreams;
2697         u16 version;
2698         u32 serial_number;
2699         u16 type;
2700
2701         int err;
2702
2703         snd_iprintf(buffer, "ASIHPI driver proc file\n");
2704
2705         hpi_handle_error(hpi_adapter_get_info(asihpi->hpi->adapter->index,
2706                         &num_outstreams, &num_instreams,
2707                         &version, &serial_number, &type));
2708
2709         snd_iprintf(buffer,
2710                         "Adapter type ASI%4X\nHardware Index %d\n"
2711                         "%d outstreams\n%d instreams\n",
2712                         type, asihpi->hpi->adapter->index,
2713                         num_outstreams, num_instreams);
2714
2715         snd_iprintf(buffer,
2716                 "Serial#%d\nHardware version %c%d\nDSP code version %03d\n",
2717                 serial_number, ((version >> 3) & 0xf) + 'A', version & 0x7,
2718                 ((version >> 13) * 100) + ((version >> 7) & 0x3f));
2719
2720         err = hpi_mixer_get_control(asihpi->h_mixer,
2721                                   HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
2722                                   HPI_CONTROL_SAMPLECLOCK, &h_control);
2723
2724         if (!err) {
2725                 err = hpi_sample_clock_get_sample_rate(h_control, &rate);
2726                 err += hpi_sample_clock_get_source(h_control, &source);
2727
2728                 if (!err)
2729                         snd_iprintf(buffer, "Sample Clock %dHz, source %s\n",
2730                         rate, sampleclock_sources[source]);
2731         }
2732 }
2733
2734 static void snd_asihpi_proc_init(struct snd_card_asihpi *asihpi)
2735 {
2736         struct snd_info_entry *entry;
2737
2738         if (!snd_card_proc_new(asihpi->card, "info", &entry))
2739                 snd_info_set_text_ops(entry, asihpi, snd_asihpi_proc_read);
2740 }
2741
2742 /*------------------------------------------------------------
2743    HWDEP
2744  ------------------------------------------------------------*/
2745
2746 static int snd_asihpi_hpi_open(struct snd_hwdep *hw, struct file *file)
2747 {
2748         if (enable_hpi_hwdep)
2749                 return 0;
2750         else
2751                 return -ENODEV;
2752
2753 }
2754
2755 static int snd_asihpi_hpi_release(struct snd_hwdep *hw, struct file *file)
2756 {
2757         if (enable_hpi_hwdep)
2758                 return asihpi_hpi_release(file);
2759         else
2760                 return -ENODEV;
2761 }
2762
2763 static int snd_asihpi_hpi_ioctl(struct snd_hwdep *hw, struct file *file,
2764                                 unsigned int cmd, unsigned long arg)
2765 {
2766         if (enable_hpi_hwdep)
2767                 return asihpi_hpi_ioctl(file, cmd, arg);
2768         else
2769                 return -ENODEV;
2770 }
2771
2772
2773 /* results in /dev/snd/hwC#D0 file for each card with index #
2774    also /proc/asound/hwdep will contain '#-00: asihpi (HPI) for each card'
2775 */
2776 static int snd_asihpi_hpi_new(struct snd_card_asihpi *asihpi,
2777                               int device, struct snd_hwdep **rhwdep)
2778 {
2779         struct snd_hwdep *hw;
2780         int err;
2781
2782         if (rhwdep)
2783                 *rhwdep = NULL;
2784         err = snd_hwdep_new(asihpi->card, "HPI", device, &hw);
2785         if (err < 0)
2786                 return err;
2787         strcpy(hw->name, "asihpi (HPI)");
2788         hw->iface = SNDRV_HWDEP_IFACE_LAST;
2789         hw->ops.open = snd_asihpi_hpi_open;
2790         hw->ops.ioctl = snd_asihpi_hpi_ioctl;
2791         hw->ops.release = snd_asihpi_hpi_release;
2792         hw->private_data = asihpi;
2793         if (rhwdep)
2794                 *rhwdep = hw;
2795         return 0;
2796 }
2797
2798 /*------------------------------------------------------------
2799    CARD
2800  ------------------------------------------------------------*/
2801 static int snd_asihpi_probe(struct pci_dev *pci_dev,
2802                             const struct pci_device_id *pci_id)
2803 {
2804         int err;
2805         struct hpi_adapter *hpi;
2806         struct snd_card *card;
2807         struct snd_card_asihpi *asihpi;
2808
2809         u32 h_control;
2810         u32 h_stream;
2811         u32 adapter_index;
2812
2813         static int dev;
2814         if (dev >= SNDRV_CARDS)
2815                 return -ENODEV;
2816
2817         /* Should this be enable[hpi->index] ? */
2818         if (!enable[dev]) {
2819                 dev++;
2820                 return -ENOENT;
2821         }
2822
2823         /* Initialise low-level HPI driver */
2824         err = asihpi_adapter_probe(pci_dev, pci_id);
2825         if (err < 0)
2826                 return err;
2827
2828         hpi = pci_get_drvdata(pci_dev);
2829         adapter_index = hpi->adapter->index;
2830         /* first try to give the card the same index as its hardware index */
2831         err = snd_card_new(&pci_dev->dev, adapter_index, id[adapter_index],
2832                            THIS_MODULE, sizeof(struct snd_card_asihpi), &card);
2833         if (err < 0) {
2834                 /* if that fails, try the default index==next available */
2835                 err = snd_card_new(&pci_dev->dev, index[dev], id[dev],
2836                                    THIS_MODULE, sizeof(struct snd_card_asihpi),
2837                                    &card);
2838                 if (err < 0)
2839                         return err;
2840                 snd_printk(KERN_WARNING
2841                         "**** WARNING **** Adapter index %d->ALSA index %d\n",
2842                         adapter_index, card->number);
2843         }
2844
2845         asihpi = card->private_data;
2846         asihpi->card = card;
2847         asihpi->pci = pci_dev;
2848         asihpi->hpi = hpi;
2849
2850         snd_printk(KERN_INFO "adapter ID=%4X index=%d\n",
2851                         asihpi->hpi->adapter->type, adapter_index);
2852
2853         err = hpi_adapter_get_property(adapter_index,
2854                 HPI_ADAPTER_PROPERTY_CAPS1,
2855                 NULL, &asihpi->support_grouping);
2856         if (err)
2857                 asihpi->support_grouping = 0;
2858
2859         err = hpi_adapter_get_property(adapter_index,
2860                 HPI_ADAPTER_PROPERTY_CAPS2,
2861                 &asihpi->support_mrx, NULL);
2862         if (err)
2863                 asihpi->support_mrx = 0;
2864
2865         err = hpi_adapter_get_property(adapter_index,
2866                 HPI_ADAPTER_PROPERTY_INTERVAL,
2867                 NULL, &asihpi->update_interval_frames);
2868         if (err)
2869                 asihpi->update_interval_frames = 512;
2870
2871         if (!asihpi->can_dma)
2872                 asihpi->update_interval_frames *= 2;
2873
2874         hpi_handle_error(hpi_instream_open(adapter_index,
2875                              0, &h_stream));
2876
2877         err = hpi_instream_host_buffer_free(h_stream);
2878         asihpi->can_dma = (!err);
2879
2880         hpi_handle_error(hpi_instream_close(h_stream));
2881
2882         err = hpi_adapter_get_property(adapter_index,
2883                 HPI_ADAPTER_PROPERTY_CURCHANNELS,
2884                 &asihpi->in_max_chans, &asihpi->out_max_chans);
2885         if (err) {
2886                 asihpi->in_max_chans = 2;
2887                 asihpi->out_max_chans = 2;
2888         }
2889
2890         if (asihpi->out_max_chans > 2) { /* assume LL mode */
2891                 asihpi->out_min_chans = asihpi->out_max_chans;
2892                 asihpi->in_min_chans = asihpi->in_max_chans;
2893                 asihpi->support_grouping = 0;
2894         } else {
2895                 asihpi->out_min_chans = 1;
2896                 asihpi->in_min_chans = 1;
2897         }
2898
2899         snd_printk(KERN_INFO "Has dma:%d, grouping:%d, mrx:%d\n",
2900                         asihpi->can_dma,
2901                         asihpi->support_grouping,
2902                         asihpi->support_mrx
2903               );
2904
2905         err = snd_card_asihpi_pcm_new(asihpi, 0);
2906         if (err < 0) {
2907                 snd_printk(KERN_ERR "pcm_new failed\n");
2908                 goto __nodev;
2909         }
2910         err = snd_card_asihpi_mixer_new(asihpi);
2911         if (err < 0) {
2912                 snd_printk(KERN_ERR "mixer_new failed\n");
2913                 goto __nodev;
2914         }
2915
2916         err = hpi_mixer_get_control(asihpi->h_mixer,
2917                                   HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
2918                                   HPI_CONTROL_SAMPLECLOCK, &h_control);
2919
2920         if (!err)
2921                 err = hpi_sample_clock_set_local_rate(
2922                         h_control, adapter_fs);
2923
2924         snd_asihpi_proc_init(asihpi);
2925
2926         /* always create, can be enabled or disabled dynamically
2927             by enable_hwdep  module param*/
2928         snd_asihpi_hpi_new(asihpi, 0, NULL);
2929
2930         strcpy(card->driver, "ASIHPI");
2931
2932         sprintf(card->shortname, "AudioScience ASI%4X",
2933                         asihpi->hpi->adapter->type);
2934         sprintf(card->longname, "%s %i",
2935                         card->shortname, adapter_index);
2936         err = snd_card_register(card);
2937
2938         if (!err) {
2939                 hpi->snd_card = card;
2940                 dev++;
2941                 return 0;
2942         }
2943 __nodev:
2944         snd_card_free(card);
2945         snd_printk(KERN_ERR "snd_asihpi_probe error %d\n", err);
2946         return err;
2947
2948 }
2949
2950 static void snd_asihpi_remove(struct pci_dev *pci_dev)
2951 {
2952         struct hpi_adapter *hpi = pci_get_drvdata(pci_dev);
2953         snd_card_free(hpi->snd_card);
2954         hpi->snd_card = NULL;
2955         asihpi_adapter_remove(pci_dev);
2956 }
2957
2958 static const struct pci_device_id asihpi_pci_tbl[] = {
2959         {HPI_PCI_VENDOR_ID_TI, HPI_PCI_DEV_ID_DSP6205,
2960                 HPI_PCI_VENDOR_ID_AUDIOSCIENCE, PCI_ANY_ID, 0, 0,
2961                 (kernel_ulong_t)HPI_6205},
2962         {HPI_PCI_VENDOR_ID_TI, HPI_PCI_DEV_ID_PCI2040,
2963                 HPI_PCI_VENDOR_ID_AUDIOSCIENCE, PCI_ANY_ID, 0, 0,
2964                 (kernel_ulong_t)HPI_6000},
2965         {0,}
2966 };
2967 MODULE_DEVICE_TABLE(pci, asihpi_pci_tbl);
2968
2969 static struct pci_driver driver = {
2970         .name = KBUILD_MODNAME,
2971         .id_table = asihpi_pci_tbl,
2972         .probe = snd_asihpi_probe,
2973         .remove = snd_asihpi_remove,
2974 #ifdef CONFIG_PM_SLEEP
2975 /*      .suspend = snd_asihpi_suspend,
2976         .resume = snd_asihpi_resume, */
2977 #endif
2978 };
2979
2980 static int __init snd_asihpi_init(void)
2981 {
2982         asihpi_init();
2983         return pci_register_driver(&driver);
2984 }
2985
2986 static void __exit snd_asihpi_exit(void)
2987 {
2988
2989         pci_unregister_driver(&driver);
2990         asihpi_exit();
2991 }
2992
2993 module_init(snd_asihpi_init)
2994 module_exit(snd_asihpi_exit)
2995