linux/sound/pci/asihpi/asihpi.c
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   1/*
   2 *  Asihpi soundcard
   3 *  Copyright (c) by AudioScience Inc <alsa@audioscience.com>
   4 *
   5 *   This program is free software; you can redistribute it and/or modify
   6 *   it under the terms of version 2 of the GNU General Public License as
   7 *   published by the Free Software Foundation;
   8 *
   9 *   This program is distributed in the hope that it will be useful,
  10 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 *   GNU General Public License for more details.
  13 *
  14 *   You should have received a copy of the GNU General Public License
  15 *   along with this program; if not, write to the Free Software
  16 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  17 *
  18 *
  19 *  The following is not a condition of use, merely a request:
  20 *  If you modify this program, particularly if you fix errors, AudioScience Inc
  21 *  would appreciate it if you grant us the right to use those modifications
  22 *  for any purpose including commercial applications.
  23 */
  24
  25#include "hpi_internal.h"
  26#include "hpimsginit.h"
  27#include "hpioctl.h"
  28
  29#include <linux/pci.h>
  30#include <linux/version.h>
  31#include <linux/init.h>
  32#include <linux/jiffies.h>
  33#include <linux/slab.h>
  34#include <linux/time.h>
  35#include <linux/wait.h>
  36#include <sound/core.h>
  37#include <sound/control.h>
  38#include <sound/pcm.h>
  39#include <sound/pcm_params.h>
  40#include <sound/info.h>
  41#include <sound/initval.h>
  42#include <sound/tlv.h>
  43#include <sound/hwdep.h>
  44
  45MODULE_LICENSE("GPL");
  46MODULE_AUTHOR("AudioScience inc. <support@audioscience.com>");
  47MODULE_DESCRIPTION("AudioScience ALSA ASI5000 ASI6000 ASI87xx ASI89xx");
  48
  49#if defined CONFIG_SND_DEBUG_VERBOSE
  50/**
  51 * snd_printddd - very verbose debug printk
  52 * @format: format string
  53 *
  54 * Works like snd_printk() for debugging purposes.
  55 * Ignored when CONFIG_SND_DEBUG_VERBOSE is not set.
  56 * Must set snd module debug parameter to 3 to enable at runtime.
  57 */
  58#define snd_printddd(format, args...) \
  59        __snd_printk(3, __FILE__, __LINE__, format, ##args)
  60#else
  61#define snd_printddd(format, args...)   do { } while (0)
  62#endif
  63
  64static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* index 0-MAX */
  65static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  66static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
  67static int enable_hpi_hwdep = 1;
  68
  69module_param_array(index, int, NULL, S_IRUGO);
  70MODULE_PARM_DESC(index, "ALSA index value for AudioScience soundcard.");
  71
  72module_param_array(id, charp, NULL, S_IRUGO);
  73MODULE_PARM_DESC(id, "ALSA ID string for AudioScience soundcard.");
  74
  75module_param_array(enable, bool, NULL, S_IRUGO);
  76MODULE_PARM_DESC(enable, "ALSA enable AudioScience soundcard.");
  77
  78module_param(enable_hpi_hwdep, bool, S_IRUGO|S_IWUSR);
  79MODULE_PARM_DESC(enable_hpi_hwdep,
  80                "ALSA enable HPI hwdep for AudioScience soundcard ");
  81
  82/* identify driver */
  83#ifdef KERNEL_ALSA_BUILD
  84static char *build_info = "Built using headers from kernel source";
  85module_param(build_info, charp, S_IRUGO);
  86MODULE_PARM_DESC(build_info, "built using headers from kernel source");
  87#else
  88static char *build_info = "Built within ALSA source";
  89module_param(build_info, charp, S_IRUGO);
  90MODULE_PARM_DESC(build_info, "built within ALSA source");
  91#endif
  92
  93/* set to 1 to dump every control from adapter to log */
  94static const int mixer_dump;
  95
  96#define DEFAULT_SAMPLERATE 44100
  97static int adapter_fs = DEFAULT_SAMPLERATE;
  98
  99/* defaults */
 100#define PERIODS_MIN 2
 101#define PERIOD_BYTES_MIN  2048
 102#define BUFFER_BYTES_MAX (512 * 1024)
 103
 104/* convert stream to character */
 105#define SCHR(s) ((s == SNDRV_PCM_STREAM_PLAYBACK) ? 'P' : 'C')
 106
 107/*#define TIMER_MILLISECONDS 20
 108#define FORCE_TIMER_JIFFIES ((TIMER_MILLISECONDS * HZ + 999)/1000)
 109*/
 110
 111#define MAX_CLOCKSOURCES (HPI_SAMPLECLOCK_SOURCE_LAST + 1 + 7)
 112
 113struct clk_source {
 114        int source;
 115        int index;
 116        char *name;
 117};
 118
 119struct clk_cache {
 120        int count;
 121        int has_local;
 122        struct clk_source s[MAX_CLOCKSOURCES];
 123};
 124
 125/* Per card data */
 126struct snd_card_asihpi {
 127        struct snd_card *card;
 128        struct pci_dev *pci;
 129        u16 adapter_index;
 130        u32 serial_number;
 131        u16 type;
 132        u16 version;
 133        u16 num_outstreams;
 134        u16 num_instreams;
 135
 136        u32 h_mixer;
 137        struct clk_cache cc;
 138
 139        u16 support_mmap;
 140        u16 support_grouping;
 141        u16 support_mrx;
 142        u16 update_interval_frames;
 143        u16 in_max_chans;
 144        u16 out_max_chans;
 145};
 146
 147/* Per stream data */
 148struct snd_card_asihpi_pcm {
 149        struct timer_list timer;
 150        unsigned int respawn_timer;
 151        unsigned int hpi_buffer_attached;
 152        unsigned int buffer_bytes;
 153        unsigned int period_bytes;
 154        unsigned int bytes_per_sec;
 155        unsigned int pcm_buf_host_rw_ofs; /* Host R/W pos */
 156        unsigned int pcm_buf_dma_ofs;   /* DMA R/W offset in buffer */
 157        unsigned int pcm_buf_elapsed_dma_ofs;   /* DMA R/W offset in buffer */
 158        struct snd_pcm_substream *substream;
 159        u32 h_stream;
 160        struct hpi_format format;
 161};
 162
 163/* universal stream verbs work with out or in stream handles */
 164
 165/* Functions to allow driver to give a buffer to HPI for busmastering */
 166
 167static u16 hpi_stream_host_buffer_attach(
 168        u32 h_stream,   /* handle to outstream. */
 169        u32 size_in_bytes, /* size in bytes of bus mastering buffer */
 170        u32 pci_address
 171)
 172{
 173        struct hpi_message hm;
 174        struct hpi_response hr;
 175        unsigned int obj = hpi_handle_object(h_stream);
 176
 177        if (!h_stream)
 178                return HPI_ERROR_INVALID_OBJ;
 179        hpi_init_message_response(&hm, &hr, obj,
 180                        obj == HPI_OBJ_OSTREAM ?
 181                                HPI_OSTREAM_HOSTBUFFER_ALLOC :
 182                                HPI_ISTREAM_HOSTBUFFER_ALLOC);
 183
 184        hpi_handle_to_indexes(h_stream, &hm.adapter_index,
 185                                &hm.obj_index);
 186
 187        hm.u.d.u.buffer.buffer_size = size_in_bytes;
 188        hm.u.d.u.buffer.pci_address = pci_address;
 189        hm.u.d.u.buffer.command = HPI_BUFFER_CMD_INTERNAL_GRANTADAPTER;
 190        hpi_send_recv(&hm, &hr);
 191        return hr.error;
 192}
 193
 194static u16 hpi_stream_host_buffer_detach(u32  h_stream)
 195{
 196        struct hpi_message hm;
 197        struct hpi_response hr;
 198        unsigned int obj = hpi_handle_object(h_stream);
 199
 200        if (!h_stream)
 201                return HPI_ERROR_INVALID_OBJ;
 202
 203        hpi_init_message_response(&hm, &hr,  obj,
 204                        obj == HPI_OBJ_OSTREAM ?
 205                                HPI_OSTREAM_HOSTBUFFER_FREE :
 206                                HPI_ISTREAM_HOSTBUFFER_FREE);
 207
 208        hpi_handle_to_indexes(h_stream, &hm.adapter_index,
 209                                &hm.obj_index);
 210        hm.u.d.u.buffer.command = HPI_BUFFER_CMD_INTERNAL_REVOKEADAPTER;
 211        hpi_send_recv(&hm, &hr);
 212        return hr.error;
 213}
 214
 215static inline u16 hpi_stream_start(u32 h_stream)
 216{
 217        if (hpi_handle_object(h_stream) ==  HPI_OBJ_OSTREAM)
 218                return hpi_outstream_start(h_stream);
 219        else
 220                return hpi_instream_start(h_stream);
 221}
 222
 223static inline u16 hpi_stream_stop(u32 h_stream)
 224{
 225        if (hpi_handle_object(h_stream) ==  HPI_OBJ_OSTREAM)
 226                return hpi_outstream_stop(h_stream);
 227        else
 228                return hpi_instream_stop(h_stream);
 229}
 230
 231static inline u16 hpi_stream_get_info_ex(
 232    u32 h_stream,
 233    u16        *pw_state,
 234    u32        *pbuffer_size,
 235    u32        *pdata_in_buffer,
 236    u32        *psample_count,
 237    u32        *pauxiliary_data
 238)
 239{
 240        u16 e;
 241        if (hpi_handle_object(h_stream)  ==  HPI_OBJ_OSTREAM)
 242                e = hpi_outstream_get_info_ex(h_stream, pw_state,
 243                                        pbuffer_size, pdata_in_buffer,
 244                                        psample_count, pauxiliary_data);
 245        else
 246                e = hpi_instream_get_info_ex(h_stream, pw_state,
 247                                        pbuffer_size, pdata_in_buffer,
 248                                        psample_count, pauxiliary_data);
 249        return e;
 250}
 251
 252static inline u16 hpi_stream_group_add(
 253                                        u32 h_master,
 254                                        u32 h_stream)
 255{
 256        if (hpi_handle_object(h_master) ==  HPI_OBJ_OSTREAM)
 257                return hpi_outstream_group_add(h_master, h_stream);
 258        else
 259                return hpi_instream_group_add(h_master, h_stream);
 260}
 261
 262static inline u16 hpi_stream_group_reset(u32 h_stream)
 263{
 264        if (hpi_handle_object(h_stream) ==  HPI_OBJ_OSTREAM)
 265                return hpi_outstream_group_reset(h_stream);
 266        else
 267                return hpi_instream_group_reset(h_stream);
 268}
 269
 270static inline u16 hpi_stream_group_get_map(
 271                                u32 h_stream, u32 *mo, u32 *mi)
 272{
 273        if (hpi_handle_object(h_stream) ==  HPI_OBJ_OSTREAM)
 274                return hpi_outstream_group_get_map(h_stream, mo, mi);
 275        else
 276                return hpi_instream_group_get_map(h_stream, mo, mi);
 277}
 278
 279static u16 handle_error(u16 err, int line, char *filename)
 280{
 281        if (err)
 282                printk(KERN_WARNING
 283                        "in file %s, line %d: HPI error %d\n",
 284                        filename, line, err);
 285        return err;
 286}
 287
 288#define hpi_handle_error(x)  handle_error(x, __LINE__, __FILE__)
 289
 290/***************************** GENERAL PCM ****************/
 291static void print_hwparams(struct snd_pcm_hw_params *p)
 292{
 293        snd_printd("HWPARAMS \n");
 294        snd_printd("samplerate %d \n", params_rate(p));
 295        snd_printd("Channels %d \n", params_channels(p));
 296        snd_printd("Format %d \n", params_format(p));
 297        snd_printd("subformat %d \n", params_subformat(p));
 298        snd_printd("Buffer bytes %d \n", params_buffer_bytes(p));
 299        snd_printd("Period bytes %d \n", params_period_bytes(p));
 300        snd_printd("access %d \n", params_access(p));
 301        snd_printd("period_size %d \n", params_period_size(p));
 302        snd_printd("periods %d \n", params_periods(p));
 303        snd_printd("buffer_size %d \n", params_buffer_size(p));
 304}
 305
 306static snd_pcm_format_t hpi_to_alsa_formats[] = {
 307        -1,                     /* INVALID */
 308        SNDRV_PCM_FORMAT_U8,    /* HPI_FORMAT_PCM8_UNSIGNED        1 */
 309        SNDRV_PCM_FORMAT_S16,   /* HPI_FORMAT_PCM16_SIGNED         2 */
 310        -1,                     /* HPI_FORMAT_MPEG_L1              3 */
 311        SNDRV_PCM_FORMAT_MPEG,  /* HPI_FORMAT_MPEG_L2              4 */
 312        SNDRV_PCM_FORMAT_MPEG,  /* HPI_FORMAT_MPEG_L3              5 */
 313        -1,                     /* HPI_FORMAT_DOLBY_AC2            6 */
 314        -1,                     /* HPI_FORMAT_DOLBY_AC3            7 */
 315        SNDRV_PCM_FORMAT_S16_BE,/* HPI_FORMAT_PCM16_BIGENDIAN      8 */
 316        -1,                     /* HPI_FORMAT_AA_TAGIT1_HITS       9 */
 317        -1,                     /* HPI_FORMAT_AA_TAGIT1_INSERTS   10 */
 318        SNDRV_PCM_FORMAT_S32,   /* HPI_FORMAT_PCM32_SIGNED        11 */
 319        -1,                     /* HPI_FORMAT_RAW_BITSTREAM       12 */
 320        -1,                     /* HPI_FORMAT_AA_TAGIT1_HITS_EX1  13 */
 321        SNDRV_PCM_FORMAT_FLOAT, /* HPI_FORMAT_PCM32_FLOAT         14 */
 322#if 1
 323        /* ALSA can't handle 3 byte sample size together with power-of-2
 324         *  constraint on buffer_bytes, so disable this format
 325         */
 326        -1
 327#else
 328        /* SNDRV_PCM_FORMAT_S24_3LE */ /* HPI_FORMAT_PCM24_SIGNED 15 */
 329#endif
 330};
 331
 332
 333static int snd_card_asihpi_format_alsa2hpi(snd_pcm_format_t alsa_format,
 334                                           u16 *hpi_format)
 335{
 336        u16 format;
 337
 338        for (format = HPI_FORMAT_PCM8_UNSIGNED;
 339             format <= HPI_FORMAT_PCM24_SIGNED; format++) {
 340                if (hpi_to_alsa_formats[format] == alsa_format) {
 341                        *hpi_format = format;
 342                        return 0;
 343                }
 344        }
 345
 346        snd_printd(KERN_WARNING "failed match for alsa format %d\n",
 347                   alsa_format);
 348        *hpi_format = 0;
 349        return -EINVAL;
 350}
 351
 352static void snd_card_asihpi_pcm_samplerates(struct snd_card_asihpi *asihpi,
 353                                         struct snd_pcm_hardware *pcmhw)
 354{
 355        u16 err;
 356        u32 h_control;
 357        u32 sample_rate;
 358        int idx;
 359        unsigned int rate_min = 200000;
 360        unsigned int rate_max = 0;
 361        unsigned int rates = 0;
 362
 363        if (asihpi->support_mrx) {
 364                rates |= SNDRV_PCM_RATE_CONTINUOUS;
 365                rates |= SNDRV_PCM_RATE_8000_96000;
 366                rate_min = 8000;
 367                rate_max = 100000;
 368        } else {
 369                /* on cards without SRC,
 370                   valid rates are determined by sampleclock */
 371                err = hpi_mixer_get_control(asihpi->h_mixer,
 372                                          HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
 373                                          HPI_CONTROL_SAMPLECLOCK, &h_control);
 374                if (err) {
 375                        snd_printk(KERN_ERR
 376                                "No local sampleclock, err %d\n", err);
 377                }
 378
 379                for (idx = -1; idx < 100; idx++) {
 380                        if (idx == -1) {
 381                                if (hpi_sample_clock_get_sample_rate(h_control,
 382                                                                &sample_rate))
 383                                        continue;
 384                        } else if (hpi_sample_clock_query_local_rate(h_control,
 385                                                        idx, &sample_rate)) {
 386                                break;
 387                        }
 388
 389                        rate_min = min(rate_min, sample_rate);
 390                        rate_max = max(rate_max, sample_rate);
 391
 392                        switch (sample_rate) {
 393                        case 5512:
 394                                rates |= SNDRV_PCM_RATE_5512;
 395                                break;
 396                        case 8000:
 397                                rates |= SNDRV_PCM_RATE_8000;
 398                                break;
 399                        case 11025:
 400                                rates |= SNDRV_PCM_RATE_11025;
 401                                break;
 402                        case 16000:
 403                                rates |= SNDRV_PCM_RATE_16000;
 404                                break;
 405                        case 22050:
 406                                rates |= SNDRV_PCM_RATE_22050;
 407                                break;
 408                        case 32000:
 409                                rates |= SNDRV_PCM_RATE_32000;
 410                                break;
 411                        case 44100:
 412                                rates |= SNDRV_PCM_RATE_44100;
 413                                break;
 414                        case 48000:
 415                                rates |= SNDRV_PCM_RATE_48000;
 416                                break;
 417                        case 64000:
 418                                rates |= SNDRV_PCM_RATE_64000;
 419                                break;
 420                        case 88200:
 421                                rates |= SNDRV_PCM_RATE_88200;
 422                                break;
 423                        case 96000:
 424                                rates |= SNDRV_PCM_RATE_96000;
 425                                break;
 426                        case 176400:
 427                                rates |= SNDRV_PCM_RATE_176400;
 428                                break;
 429                        case 192000:
 430                                rates |= SNDRV_PCM_RATE_192000;
 431                                break;
 432                        default: /* some other rate */
 433                                rates |= SNDRV_PCM_RATE_KNOT;
 434                        }
 435                }
 436        }
 437
 438        pcmhw->rates = rates;
 439        pcmhw->rate_min = rate_min;
 440        pcmhw->rate_max = rate_max;
 441}
 442
 443static int snd_card_asihpi_pcm_hw_params(struct snd_pcm_substream *substream,
 444                                         struct snd_pcm_hw_params *params)
 445{
 446        struct snd_pcm_runtime *runtime = substream->runtime;
 447        struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
 448        struct snd_card_asihpi *card = snd_pcm_substream_chip(substream);
 449        int err;
 450        u16 format;
 451        int width;
 452        unsigned int bytes_per_sec;
 453
 454        print_hwparams(params);
 455        err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
 456        if (err < 0)
 457                return err;
 458        err = snd_card_asihpi_format_alsa2hpi(params_format(params), &format);
 459        if (err)
 460                return err;
 461
 462        snd_printdd("format %d, %d chans, %d_hz\n",
 463                                format, params_channels(params),
 464                                params_rate(params));
 465
 466        hpi_handle_error(hpi_format_create(&dpcm->format,
 467                        params_channels(params),
 468                        format, params_rate(params), 0, 0));
 469
 470        if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
 471                if (hpi_instream_reset(dpcm->h_stream) != 0)
 472                        return -EINVAL;
 473
 474                if (hpi_instream_set_format(
 475                        dpcm->h_stream, &dpcm->format) != 0)
 476                        return -EINVAL;
 477        }
 478
 479        dpcm->hpi_buffer_attached = 0;
 480        if (card->support_mmap) {
 481
 482                err = hpi_stream_host_buffer_attach(dpcm->h_stream,
 483                        params_buffer_bytes(params),  runtime->dma_addr);
 484                if (err == 0) {
 485                        snd_printdd(
 486                                "stream_host_buffer_attach succeeded %u %lu\n",
 487                                params_buffer_bytes(params),
 488                                (unsigned long)runtime->dma_addr);
 489                } else {
 490                        snd_printd("stream_host_buffer_attach error %d\n",
 491                                        err);
 492                        return -ENOMEM;
 493                }
 494
 495                err = hpi_stream_get_info_ex(dpcm->h_stream, NULL,
 496                                                &dpcm->hpi_buffer_attached,
 497                                                NULL, NULL, NULL);
 498
 499                snd_printdd("stream_host_buffer_attach status 0x%x\n",
 500                                dpcm->hpi_buffer_attached);
 501        }
 502        bytes_per_sec = params_rate(params) * params_channels(params);
 503        width = snd_pcm_format_width(params_format(params));
 504        bytes_per_sec *= width;
 505        bytes_per_sec /= 8;
 506        if (width < 0 || bytes_per_sec == 0)
 507                return -EINVAL;
 508
 509        dpcm->bytes_per_sec = bytes_per_sec;
 510        dpcm->buffer_bytes = params_buffer_bytes(params);
 511        dpcm->period_bytes = params_period_bytes(params);
 512        snd_printdd("buffer_bytes=%d, period_bytes=%d, bps=%d\n",
 513                        dpcm->buffer_bytes, dpcm->period_bytes, bytes_per_sec);
 514
 515        return 0;
 516}
 517
 518static int
 519snd_card_asihpi_hw_free(struct snd_pcm_substream *substream)
 520{
 521        struct snd_pcm_runtime *runtime = substream->runtime;
 522        struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
 523        if (dpcm->hpi_buffer_attached)
 524                hpi_stream_host_buffer_detach(dpcm->h_stream);
 525
 526        snd_pcm_lib_free_pages(substream);
 527        return 0;
 528}
 529
 530static void snd_card_asihpi_runtime_free(struct snd_pcm_runtime *runtime)
 531{
 532        struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
 533        kfree(dpcm);
 534}
 535
 536static void snd_card_asihpi_pcm_timer_start(struct snd_pcm_substream *
 537                                            substream)
 538{
 539        struct snd_pcm_runtime *runtime = substream->runtime;
 540        struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
 541        int expiry;
 542
 543        expiry = HZ / 200;
 544        /*? (dpcm->period_bytes * HZ / dpcm->bytes_per_sec); */
 545        expiry = max(expiry, 1); /* don't let it be zero! */
 546        dpcm->timer.expires = jiffies + expiry;
 547        dpcm->respawn_timer = 1;
 548        add_timer(&dpcm->timer);
 549}
 550
 551static void snd_card_asihpi_pcm_timer_stop(struct snd_pcm_substream *substream)
 552{
 553        struct snd_pcm_runtime *runtime = substream->runtime;
 554        struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
 555
 556        dpcm->respawn_timer = 0;
 557        del_timer(&dpcm->timer);
 558}
 559
 560static int snd_card_asihpi_trigger(struct snd_pcm_substream *substream,
 561                                           int cmd)
 562{
 563        struct snd_card_asihpi_pcm *dpcm = substream->runtime->private_data;
 564        struct snd_card_asihpi *card = snd_pcm_substream_chip(substream);
 565        struct snd_pcm_substream *s;
 566        u16 e;
 567
 568        snd_printdd("%c%d trigger\n",
 569                        SCHR(substream->stream), substream->number);
 570        switch (cmd) {
 571        case SNDRV_PCM_TRIGGER_START:
 572                snd_pcm_group_for_each_entry(s, substream) {
 573                        struct snd_pcm_runtime *runtime = s->runtime;
 574                        struct snd_card_asihpi_pcm *ds = runtime->private_data;
 575
 576                        if (snd_pcm_substream_chip(s) != card)
 577                                continue;
 578
 579                        /* don't link Cap and Play */
 580                        if (substream->stream != s->stream)
 581                                continue;
 582
 583                        if ((s->stream == SNDRV_PCM_STREAM_PLAYBACK) &&
 584                                (card->support_mmap)) {
 585                                /* How do I know how much valid data is present
 586                                * in buffer? Must be at least one period!
 587                                * Guessing 2 periods, but if
 588                                * buffer is bigger it may contain even more
 589                                * data??
 590                                */
 591                                unsigned int preload = ds->period_bytes * 1;
 592                                snd_printddd("%d preload x%x\n", s->number, preload);
 593                                hpi_handle_error(hpi_outstream_write_buf(
 594                                                ds->h_stream,
 595                                                &runtime->dma_area[0],
 596                                                preload,
 597                                                &ds->format));
 598                                ds->pcm_buf_host_rw_ofs = preload;
 599                        }
 600
 601                        if (card->support_grouping) {
 602                                snd_printdd("\t%c%d group\n",
 603                                                SCHR(s->stream),
 604                                                s->number);
 605                                e = hpi_stream_group_add(
 606                                        dpcm->h_stream,
 607                                        ds->h_stream);
 608                                if (!e) {
 609                                        snd_pcm_trigger_done(s, substream);
 610                                } else {
 611                                        hpi_handle_error(e);
 612                                        break;
 613                                }
 614                        } else
 615                                break;
 616                }
 617                snd_printdd("start\n");
 618                /* start the master stream */
 619                snd_card_asihpi_pcm_timer_start(substream);
 620                if ((substream->stream == SNDRV_PCM_STREAM_CAPTURE) ||
 621                        !card->support_mmap)
 622                        hpi_handle_error(hpi_stream_start(dpcm->h_stream));
 623                break;
 624
 625        case SNDRV_PCM_TRIGGER_STOP:
 626                snd_card_asihpi_pcm_timer_stop(substream);
 627                snd_pcm_group_for_each_entry(s, substream) {
 628                        if (snd_pcm_substream_chip(s) != card)
 629                                continue;
 630                        /* don't link Cap and Play */
 631                        if (substream->stream != s->stream)
 632                                continue;
 633
 634                        /*? workaround linked streams don't
 635                        transition to SETUP 20070706*/
 636                        s->runtime->status->state = SNDRV_PCM_STATE_SETUP;
 637
 638                        if (card->support_grouping) {
 639                                snd_printdd("\t%c%d group\n",
 640                                SCHR(s->stream),
 641                                        s->number);
 642                                snd_pcm_trigger_done(s, substream);
 643                        } else
 644                                break;
 645                }
 646                snd_printdd("stop\n");
 647
 648                /* _prepare and _hwparams reset the stream */
 649                hpi_handle_error(hpi_stream_stop(dpcm->h_stream));
 650                if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
 651                        hpi_handle_error(
 652                                hpi_outstream_reset(dpcm->h_stream));
 653
 654                if (card->support_grouping)
 655                        hpi_handle_error(hpi_stream_group_reset(dpcm->h_stream));
 656                break;
 657
 658        case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 659                snd_printdd("pause release\n");
 660                hpi_handle_error(hpi_stream_start(dpcm->h_stream));
 661                snd_card_asihpi_pcm_timer_start(substream);
 662                break;
 663        case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 664                snd_printdd("pause\n");
 665                snd_card_asihpi_pcm_timer_stop(substream);
 666                hpi_handle_error(hpi_stream_stop(dpcm->h_stream));
 667                break;
 668        default:
 669                snd_printd(KERN_ERR "\tINVALID\n");
 670                return -EINVAL;
 671        }
 672
 673        return 0;
 674}
 675
 676/*algorithm outline
 677 Without linking degenerates to getting single stream pos etc
 678 Without mmap 2nd loop degenerates to snd_pcm_period_elapsed
 679*/
 680/*
 681pcm_buf_dma_ofs=get_buf_pos(s);
 682for_each_linked_stream(s) {
 683        pcm_buf_dma_ofs=get_buf_pos(s);
 684        min_buf_pos = modulo_min(min_buf_pos, pcm_buf_dma_ofs, buffer_bytes)
 685        new_data = min(new_data, calc_new_data(pcm_buf_dma_ofs,irq_pos)
 686}
 687timer.expires = jiffies + predict_next_period_ready(min_buf_pos);
 688for_each_linked_stream(s) {
 689        s->pcm_buf_dma_ofs = min_buf_pos;
 690        if (new_data > period_bytes) {
 691                if (mmap) {
 692                        irq_pos = (irq_pos + period_bytes) % buffer_bytes;
 693                        if (playback) {
 694                                write(period_bytes);
 695                        } else {
 696                                read(period_bytes);
 697                        }
 698                }
 699                snd_pcm_period_elapsed(s);
 700        }
 701}
 702*/
 703
 704/** Minimum of 2 modulo values.  Works correctly when the difference between
 705* the values is less than half the modulus
 706*/
 707static inline unsigned int modulo_min(unsigned int a, unsigned int b,
 708                                        unsigned long int modulus)
 709{
 710        unsigned int result;
 711        if (((a-b) % modulus) < (modulus/2))
 712                result = b;
 713        else
 714                result = a;
 715
 716        return result;
 717}
 718
 719/** Timer function, equivalent to interrupt service routine for cards
 720*/
 721static void snd_card_asihpi_timer_function(unsigned long data)
 722{
 723        struct snd_card_asihpi_pcm *dpcm = (struct snd_card_asihpi_pcm *)data;
 724        struct snd_pcm_substream *substream = dpcm->substream;
 725        struct snd_card_asihpi *card = snd_pcm_substream_chip(substream);
 726        struct snd_pcm_runtime *runtime;
 727        struct snd_pcm_substream *s;
 728        unsigned int newdata = 0;
 729        unsigned int pcm_buf_dma_ofs, min_buf_pos = 0;
 730        unsigned int remdata, xfercount, next_jiffies;
 731        int first = 1;
 732        int loops = 0;
 733        u16 state;
 734        u32 buffer_size, bytes_avail, samples_played, on_card_bytes;
 735
 736        snd_printdd("%c%d snd_card_asihpi_timer_function\n",
 737                                SCHR(substream->stream), substream->number);
 738
 739        /* find minimum newdata and buffer pos in group */
 740        snd_pcm_group_for_each_entry(s, substream) {
 741                struct snd_card_asihpi_pcm *ds = s->runtime->private_data;
 742                runtime = s->runtime;
 743
 744                if (snd_pcm_substream_chip(s) != card)
 745                        continue;
 746
 747                /* don't link Cap and Play */
 748                if (substream->stream != s->stream)
 749                        continue;
 750
 751                hpi_handle_error(hpi_stream_get_info_ex(
 752                                        ds->h_stream, &state,
 753                                        &buffer_size, &bytes_avail,
 754                                        &samples_played, &on_card_bytes));
 755
 756                /* number of bytes in on-card buffer */
 757                runtime->delay = on_card_bytes;
 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                                    (on_card_bytes < ds->pcm_buf_host_rw_ofs)) {
 764                                        hpi_handle_error(hpi_stream_start(ds->h_stream));
 765                                        snd_printdd("P%d start\n", s->number);
 766                                }
 767                        } else if (state == HPI_STATE_DRAINED) {
 768                                snd_printd(KERN_WARNING "P%d drained\n",
 769                                                s->number);
 770                                /*snd_pcm_stop(s, SNDRV_PCM_STATE_XRUN);
 771                                continue; */
 772                        }
 773                } else
 774                        pcm_buf_dma_ofs = bytes_avail + ds->pcm_buf_host_rw_ofs;
 775
 776                if (first) {
 777                        /* can't statically init min when wrap is involved */
 778                        min_buf_pos = pcm_buf_dma_ofs;
 779                        newdata = (pcm_buf_dma_ofs - ds->pcm_buf_elapsed_dma_ofs) % ds->buffer_bytes;
 780                        first = 0;
 781                } else {
 782                        min_buf_pos =
 783                                modulo_min(min_buf_pos, pcm_buf_dma_ofs, UINT_MAX+1L);
 784                        newdata = min(
 785                                (pcm_buf_dma_ofs - ds->pcm_buf_elapsed_dma_ofs) % ds->buffer_bytes,
 786                                newdata);
 787                }
 788
 789                snd_printdd("hw_ptr x%04lX, appl_ptr x%04lX\n",
 790                        (unsigned long)frames_to_bytes(runtime,
 791                                                runtime->status->hw_ptr),
 792                        (unsigned long)frames_to_bytes(runtime,
 793                                                runtime->control->appl_ptr));
 794
 795                snd_printdd("%d %c%d S=%d, rw=%04X, dma=x%04X, left=x%04X,"
 796                        " aux=x%04X space=x%04X\n",
 797                        loops, SCHR(s->stream), s->number,
 798                        state,  ds->pcm_buf_host_rw_ofs, pcm_buf_dma_ofs, (int)bytes_avail,
 799                        (int)on_card_bytes, buffer_size-bytes_avail);
 800                loops++;
 801        }
 802        pcm_buf_dma_ofs = min_buf_pos;
 803
 804        remdata = newdata % dpcm->period_bytes;
 805        xfercount = newdata - remdata; /* a multiple of period_bytes */
 806        /* come back when on_card_bytes has decreased enough to allow
 807           write to happen, or when data has been consumed to make another
 808           period
 809        */
 810        if (xfercount && (on_card_bytes  > dpcm->period_bytes))
 811                next_jiffies = ((on_card_bytes - dpcm->period_bytes) * HZ / dpcm->bytes_per_sec);
 812        else
 813                next_jiffies = ((dpcm->period_bytes - remdata) * HZ / dpcm->bytes_per_sec);
 814
 815        next_jiffies = max(next_jiffies, 1U);
 816        dpcm->timer.expires = jiffies + next_jiffies;
 817        snd_printdd("jif %d buf pos x%04X newdata x%04X xfer x%04X\n",
 818                        next_jiffies, pcm_buf_dma_ofs, newdata, xfercount);
 819
 820        snd_pcm_group_for_each_entry(s, substream) {
 821                struct snd_card_asihpi_pcm *ds = s->runtime->private_data;
 822
 823                /* don't link Cap and Play */
 824                if (substream->stream != s->stream)
 825                        continue;
 826
 827                ds->pcm_buf_dma_ofs = pcm_buf_dma_ofs;
 828
 829                if (xfercount && (on_card_bytes <= ds->period_bytes)) {
 830                        if (card->support_mmap) {
 831                                if (s->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 832                                        snd_printddd("P%d write x%04x\n",
 833                                                        s->number,
 834                                                        ds->period_bytes);
 835                                        hpi_handle_error(
 836                                                hpi_outstream_write_buf(
 837                                                        ds->h_stream,
 838                                                        &s->runtime->
 839                                                                dma_area[0],
 840                                                        xfercount,
 841                                                        &ds->format));
 842                                } else {
 843                                        snd_printddd("C%d read x%04x\n",
 844                                                s->number,
 845                                                xfercount);
 846                                        hpi_handle_error(
 847                                                hpi_instream_read_buf(
 848                                                        ds->h_stream,
 849                                                        NULL, xfercount));
 850                                }
 851                                ds->pcm_buf_host_rw_ofs = ds->pcm_buf_host_rw_ofs + xfercount;
 852                        } /* else R/W will be handled by read/write callbacks */
 853                        ds->pcm_buf_elapsed_dma_ofs = pcm_buf_dma_ofs;
 854                        snd_pcm_period_elapsed(s);
 855                }
 856        }
 857
 858        if (dpcm->respawn_timer)
 859                add_timer(&dpcm->timer);
 860}
 861
 862/***************************** PLAYBACK OPS ****************/
 863static int snd_card_asihpi_playback_ioctl(struct snd_pcm_substream *substream,
 864                                          unsigned int cmd, void *arg)
 865{
 866        snd_printdd(KERN_INFO "Playback ioctl %d\n", cmd);
 867        return snd_pcm_lib_ioctl(substream, cmd, arg);
 868}
 869
 870static int snd_card_asihpi_playback_prepare(struct snd_pcm_substream *
 871                                            substream)
 872{
 873        struct snd_pcm_runtime *runtime = substream->runtime;
 874        struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
 875
 876        snd_printdd("playback prepare %d\n", substream->number);
 877
 878        hpi_handle_error(hpi_outstream_reset(dpcm->h_stream));
 879        dpcm->pcm_buf_host_rw_ofs = 0;
 880        dpcm->pcm_buf_dma_ofs = 0;
 881        dpcm->pcm_buf_elapsed_dma_ofs = 0;
 882        return 0;
 883}
 884
 885static snd_pcm_uframes_t
 886snd_card_asihpi_playback_pointer(struct snd_pcm_substream *substream)
 887{
 888        struct snd_pcm_runtime *runtime = substream->runtime;
 889        struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
 890        snd_pcm_uframes_t ptr;
 891
 892        ptr = bytes_to_frames(runtime, dpcm->pcm_buf_dma_ofs  % dpcm->buffer_bytes);
 893        snd_printddd("playback_pointer=x%04lx\n", (unsigned long)ptr);
 894        return ptr;
 895}
 896
 897static void snd_card_asihpi_playback_format(struct snd_card_asihpi *asihpi,
 898                                                u32 h_stream,
 899                                                struct snd_pcm_hardware *pcmhw)
 900{
 901        struct hpi_format hpi_format;
 902        u16 format;
 903        u16 err;
 904        u32 h_control;
 905        u32 sample_rate = 48000;
 906
 907        /* on cards without SRC, must query at valid rate,
 908        * maybe set by external sync
 909        */
 910        err = hpi_mixer_get_control(asihpi->h_mixer,
 911                                  HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
 912                                  HPI_CONTROL_SAMPLECLOCK, &h_control);
 913
 914        if (!err)
 915                err = hpi_sample_clock_get_sample_rate(h_control,
 916                                &sample_rate);
 917
 918        for (format = HPI_FORMAT_PCM8_UNSIGNED;
 919             format <= HPI_FORMAT_PCM24_SIGNED; format++) {
 920                err = hpi_format_create(&hpi_format,
 921                                        2, format, sample_rate, 128000, 0);
 922                if (!err)
 923                        err = hpi_outstream_query_format(h_stream,
 924                                                        &hpi_format);
 925                if (!err && (hpi_to_alsa_formats[format] != -1))
 926                        pcmhw->formats |=
 927                                (1ULL << hpi_to_alsa_formats[format]);
 928        }
 929}
 930
 931static struct snd_pcm_hardware snd_card_asihpi_playback = {
 932        .channels_min = 1,
 933        .channels_max = 2,
 934        .buffer_bytes_max = BUFFER_BYTES_MAX,
 935        .period_bytes_min = PERIOD_BYTES_MIN,
 936        .period_bytes_max = BUFFER_BYTES_MAX / PERIODS_MIN,
 937        .periods_min = PERIODS_MIN,
 938        .periods_max = BUFFER_BYTES_MAX / PERIOD_BYTES_MIN,
 939        .fifo_size = 0,
 940};
 941
 942static int snd_card_asihpi_playback_open(struct snd_pcm_substream *substream)
 943{
 944        struct snd_pcm_runtime *runtime = substream->runtime;
 945        struct snd_card_asihpi_pcm *dpcm;
 946        struct snd_card_asihpi *card = snd_pcm_substream_chip(substream);
 947        int err;
 948
 949        dpcm = kzalloc(sizeof(*dpcm), GFP_KERNEL);
 950        if (dpcm == NULL)
 951                return -ENOMEM;
 952
 953        err =
 954            hpi_outstream_open(card->adapter_index,
 955                              substream->number, &dpcm->h_stream);
 956        hpi_handle_error(err);
 957        if (err)
 958                kfree(dpcm);
 959        if (err == HPI_ERROR_OBJ_ALREADY_OPEN)
 960                return -EBUSY;
 961        if (err)
 962                return -EIO;
 963
 964        /*? also check ASI5000 samplerate source
 965            If external, only support external rate.
 966            If internal and other stream playing, can't switch
 967        */
 968
 969        init_timer(&dpcm->timer);
 970        dpcm->timer.data = (unsigned long) dpcm;
 971        dpcm->timer.function = snd_card_asihpi_timer_function;
 972        dpcm->substream = substream;
 973        runtime->private_data = dpcm;
 974        runtime->private_free = snd_card_asihpi_runtime_free;
 975
 976        snd_card_asihpi_playback.channels_max = card->out_max_chans;
 977        /*?snd_card_asihpi_playback.period_bytes_min =
 978        card->out_max_chans * 4096; */
 979
 980        snd_card_asihpi_playback_format(card, dpcm->h_stream,
 981                                        &snd_card_asihpi_playback);
 982
 983        snd_card_asihpi_pcm_samplerates(card,  &snd_card_asihpi_playback);
 984
 985        snd_card_asihpi_playback.info = SNDRV_PCM_INFO_INTERLEAVED |
 986                                        SNDRV_PCM_INFO_DOUBLE |
 987                                        SNDRV_PCM_INFO_BATCH |
 988                                        SNDRV_PCM_INFO_BLOCK_TRANSFER |
 989                                        SNDRV_PCM_INFO_PAUSE;
 990
 991        if (card->support_mmap)
 992                snd_card_asihpi_playback.info |= SNDRV_PCM_INFO_MMAP |
 993                                                SNDRV_PCM_INFO_MMAP_VALID;
 994
 995        if (card->support_grouping)
 996                snd_card_asihpi_playback.info |= SNDRV_PCM_INFO_SYNC_START;
 997
 998        /* struct is copied, so can create initializer dynamically */
 999        runtime->hw = snd_card_asihpi_playback;
1000
1001        if (card->support_mmap)
1002                err = snd_pcm_hw_constraint_pow2(runtime, 0,
1003                                        SNDRV_PCM_HW_PARAM_BUFFER_BYTES);
1004        if (err < 0)
1005                return err;
1006
1007        snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
1008                card->update_interval_frames);
1009
1010        snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
1011                card->update_interval_frames * 2, UINT_MAX);
1012
1013        snd_pcm_set_sync(substream);
1014
1015        snd_printdd("playback open\n");
1016
1017        return 0;
1018}
1019
1020static int snd_card_asihpi_playback_close(struct snd_pcm_substream *substream)
1021{
1022        struct snd_pcm_runtime *runtime = substream->runtime;
1023        struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
1024
1025        hpi_handle_error(hpi_outstream_close(dpcm->h_stream));
1026        snd_printdd("playback close\n");
1027
1028        return 0;
1029}
1030
1031static int snd_card_asihpi_playback_copy(struct snd_pcm_substream *substream,
1032                                        int channel,
1033                                        snd_pcm_uframes_t pos,
1034                                        void __user *src,
1035                                        snd_pcm_uframes_t count)
1036{
1037        struct snd_pcm_runtime *runtime = substream->runtime;
1038        struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
1039        unsigned int len;
1040
1041        len = frames_to_bytes(runtime, count);
1042
1043        if (copy_from_user(runtime->dma_area, src, len))
1044                return -EFAULT;
1045
1046        snd_printddd("playback copy%d %u bytes\n",
1047                        substream->number, len);
1048
1049        hpi_handle_error(hpi_outstream_write_buf(dpcm->h_stream,
1050                                runtime->dma_area, len, &dpcm->format));
1051
1052        dpcm->pcm_buf_host_rw_ofs += len;
1053
1054        return 0;
1055}
1056
1057static int snd_card_asihpi_playback_silence(struct snd_pcm_substream *
1058                                            substream, int channel,
1059                                            snd_pcm_uframes_t pos,
1060                                            snd_pcm_uframes_t count)
1061{
1062        /* Usually writes silence to DMA buffer, which should be overwritten
1063        by real audio later.  Our fifos cannot be overwritten, and are not
1064        free-running DMAs. Silence is output on fifo underflow.
1065        This callback is still required to allow the copy callback to be used.
1066        */
1067        return 0;
1068}
1069
1070static struct snd_pcm_ops snd_card_asihpi_playback_ops = {
1071        .open = snd_card_asihpi_playback_open,
1072        .close = snd_card_asihpi_playback_close,
1073        .ioctl = snd_card_asihpi_playback_ioctl,
1074        .hw_params = snd_card_asihpi_pcm_hw_params,
1075        .hw_free = snd_card_asihpi_hw_free,
1076        .prepare = snd_card_asihpi_playback_prepare,
1077        .trigger = snd_card_asihpi_trigger,
1078        .pointer = snd_card_asihpi_playback_pointer,
1079        .copy = snd_card_asihpi_playback_copy,
1080        .silence = snd_card_asihpi_playback_silence,
1081};
1082
1083static struct snd_pcm_ops snd_card_asihpi_playback_mmap_ops = {
1084        .open = snd_card_asihpi_playback_open,
1085        .close = snd_card_asihpi_playback_close,
1086        .ioctl = snd_card_asihpi_playback_ioctl,
1087        .hw_params = snd_card_asihpi_pcm_hw_params,
1088        .hw_free = snd_card_asihpi_hw_free,
1089        .prepare = snd_card_asihpi_playback_prepare,
1090        .trigger = snd_card_asihpi_trigger,
1091        .pointer = snd_card_asihpi_playback_pointer,
1092};
1093
1094/***************************** CAPTURE OPS ****************/
1095static snd_pcm_uframes_t
1096snd_card_asihpi_capture_pointer(struct snd_pcm_substream *substream)
1097{
1098        struct snd_pcm_runtime *runtime = substream->runtime;
1099        struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
1100
1101        snd_printddd("capture pointer %d=%d\n",
1102                        substream->number, dpcm->pcm_buf_dma_ofs);
1103        /* NOTE Unlike playback can't use actual samples_played
1104                for the capture position, because those samples aren't yet in
1105                the local buffer available for reading.
1106        */
1107        return bytes_to_frames(runtime, dpcm->pcm_buf_dma_ofs % dpcm->buffer_bytes);
1108}
1109
1110static int snd_card_asihpi_capture_ioctl(struct snd_pcm_substream *substream,
1111                                         unsigned int cmd, void *arg)
1112{
1113        return snd_pcm_lib_ioctl(substream, cmd, arg);
1114}
1115
1116static int snd_card_asihpi_capture_prepare(struct snd_pcm_substream *substream)
1117{
1118        struct snd_pcm_runtime *runtime = substream->runtime;
1119        struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
1120
1121        hpi_handle_error(hpi_instream_reset(dpcm->h_stream));
1122        dpcm->pcm_buf_host_rw_ofs = 0;
1123        dpcm->pcm_buf_dma_ofs = 0;
1124        dpcm->pcm_buf_elapsed_dma_ofs = 0;
1125
1126        snd_printdd("Capture Prepare %d\n", substream->number);
1127        return 0;
1128}
1129
1130
1131
1132static void snd_card_asihpi_capture_format(struct snd_card_asihpi *asihpi,
1133                                        u32 h_stream,
1134                                         struct snd_pcm_hardware *pcmhw)
1135{
1136  struct hpi_format hpi_format;
1137        u16 format;
1138        u16 err;
1139        u32 h_control;
1140        u32 sample_rate = 48000;
1141
1142        /* on cards without SRC, must query at valid rate,
1143                maybe set by external sync */
1144        err = hpi_mixer_get_control(asihpi->h_mixer,
1145                                  HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
1146                                  HPI_CONTROL_SAMPLECLOCK, &h_control);
1147
1148        if (!err)
1149                err = hpi_sample_clock_get_sample_rate(h_control,
1150                        &sample_rate);
1151
1152        for (format = HPI_FORMAT_PCM8_UNSIGNED;
1153                format <= HPI_FORMAT_PCM24_SIGNED; format++) {
1154
1155                err = hpi_format_create(&hpi_format, 2, format,
1156                                sample_rate, 128000, 0);
1157                if (!err)
1158                        err = hpi_instream_query_format(h_stream,
1159                                            &hpi_format);
1160                if (!err)
1161                        pcmhw->formats |=
1162                                (1ULL << hpi_to_alsa_formats[format]);
1163        }
1164}
1165
1166
1167static struct snd_pcm_hardware snd_card_asihpi_capture = {
1168        .channels_min = 1,
1169        .channels_max = 2,
1170        .buffer_bytes_max = BUFFER_BYTES_MAX,
1171        .period_bytes_min = PERIOD_BYTES_MIN,
1172        .period_bytes_max = BUFFER_BYTES_MAX / PERIODS_MIN,
1173        .periods_min = PERIODS_MIN,
1174        .periods_max = BUFFER_BYTES_MAX / PERIOD_BYTES_MIN,
1175        .fifo_size = 0,
1176};
1177
1178static int snd_card_asihpi_capture_open(struct snd_pcm_substream *substream)
1179{
1180        struct snd_pcm_runtime *runtime = substream->runtime;
1181        struct snd_card_asihpi *card = snd_pcm_substream_chip(substream);
1182        struct snd_card_asihpi_pcm *dpcm;
1183        int err;
1184
1185        dpcm = kzalloc(sizeof(*dpcm), GFP_KERNEL);
1186        if (dpcm == NULL)
1187                return -ENOMEM;
1188
1189        snd_printdd("capture open adapter %d stream %d\n",
1190                   card->adapter_index, substream->number);
1191
1192        err = hpi_handle_error(
1193            hpi_instream_open(card->adapter_index,
1194                             substream->number, &dpcm->h_stream));
1195        if (err)
1196                kfree(dpcm);
1197        if (err == HPI_ERROR_OBJ_ALREADY_OPEN)
1198                return -EBUSY;
1199        if (err)
1200                return -EIO;
1201
1202
1203        init_timer(&dpcm->timer);
1204        dpcm->timer.data = (unsigned long) dpcm;
1205        dpcm->timer.function = snd_card_asihpi_timer_function;
1206        dpcm->substream = substream;
1207        runtime->private_data = dpcm;
1208        runtime->private_free = snd_card_asihpi_runtime_free;
1209
1210        snd_card_asihpi_capture.channels_max = card->in_max_chans;
1211        snd_card_asihpi_capture_format(card, dpcm->h_stream,
1212                                       &snd_card_asihpi_capture);
1213        snd_card_asihpi_pcm_samplerates(card,  &snd_card_asihpi_capture);
1214        snd_card_asihpi_capture.info = SNDRV_PCM_INFO_INTERLEAVED;
1215
1216        if (card->support_mmap)
1217                snd_card_asihpi_capture.info |= SNDRV_PCM_INFO_MMAP |
1218                                                SNDRV_PCM_INFO_MMAP_VALID;
1219
1220        if (card->support_grouping)
1221                snd_card_asihpi_capture.info |= SNDRV_PCM_INFO_SYNC_START;
1222
1223        runtime->hw = snd_card_asihpi_capture;
1224
1225        if (card->support_mmap)
1226                err = snd_pcm_hw_constraint_pow2(runtime, 0,
1227                                        SNDRV_PCM_HW_PARAM_BUFFER_BYTES);
1228        if (err < 0)
1229                return err;
1230
1231        snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
1232                card->update_interval_frames);
1233        snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
1234                card->update_interval_frames * 2, UINT_MAX);
1235
1236        snd_pcm_set_sync(substream);
1237
1238        return 0;
1239}
1240
1241static int snd_card_asihpi_capture_close(struct snd_pcm_substream *substream)
1242{
1243        struct snd_card_asihpi_pcm *dpcm = substream->runtime->private_data;
1244
1245        hpi_handle_error(hpi_instream_close(dpcm->h_stream));
1246        return 0;
1247}
1248
1249static int snd_card_asihpi_capture_copy(struct snd_pcm_substream *substream,
1250                                int channel, snd_pcm_uframes_t pos,
1251                                void __user *dst, snd_pcm_uframes_t count)
1252{
1253        struct snd_pcm_runtime *runtime = substream->runtime;
1254        struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
1255        u32 len;
1256
1257        len = frames_to_bytes(runtime, count);
1258
1259        snd_printddd("capture copy%d %d bytes\n", substream->number, len);
1260        hpi_handle_error(hpi_instream_read_buf(dpcm->h_stream,
1261                                runtime->dma_area, len));
1262
1263        dpcm->pcm_buf_host_rw_ofs = dpcm->pcm_buf_host_rw_ofs + len;
1264
1265        if (copy_to_user(dst, runtime->dma_area, len))
1266                return -EFAULT;
1267
1268        return 0;
1269}
1270
1271static struct snd_pcm_ops snd_card_asihpi_capture_mmap_ops = {
1272        .open = snd_card_asihpi_capture_open,
1273        .close = snd_card_asihpi_capture_close,
1274        .ioctl = snd_card_asihpi_capture_ioctl,
1275        .hw_params = snd_card_asihpi_pcm_hw_params,
1276        .hw_free = snd_card_asihpi_hw_free,
1277        .prepare = snd_card_asihpi_capture_prepare,
1278        .trigger = snd_card_asihpi_trigger,
1279        .pointer = snd_card_asihpi_capture_pointer,
1280};
1281
1282static struct snd_pcm_ops snd_card_asihpi_capture_ops = {
1283        .open = snd_card_asihpi_capture_open,
1284        .close = snd_card_asihpi_capture_close,
1285        .ioctl = snd_card_asihpi_capture_ioctl,
1286        .hw_params = snd_card_asihpi_pcm_hw_params,
1287        .hw_free = snd_card_asihpi_hw_free,
1288        .prepare = snd_card_asihpi_capture_prepare,
1289        .trigger = snd_card_asihpi_trigger,
1290        .pointer = snd_card_asihpi_capture_pointer,
1291        .copy = snd_card_asihpi_capture_copy
1292};
1293
1294static int __devinit snd_card_asihpi_pcm_new(struct snd_card_asihpi *asihpi,
1295                                      int device, int substreams)
1296{
1297        struct snd_pcm *pcm;
1298        int err;
1299
1300        err = snd_pcm_new(asihpi->card, "Asihpi PCM", device,
1301                         asihpi->num_outstreams, asihpi->num_instreams,
1302                         &pcm);
1303        if (err < 0)
1304                return err;
1305        /* pointer to ops struct is stored, dont change ops afterwards! */
1306        if (asihpi->support_mmap) {
1307                snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1308                                &snd_card_asihpi_playback_mmap_ops);
1309                snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
1310                                &snd_card_asihpi_capture_mmap_ops);
1311        } else {
1312                snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1313                                &snd_card_asihpi_playback_ops);
1314                snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
1315                                &snd_card_asihpi_capture_ops);
1316        }
1317
1318        pcm->private_data = asihpi;
1319        pcm->info_flags = 0;
1320        strcpy(pcm->name, "Asihpi PCM");
1321
1322        /*? do we want to emulate MMAP for non-BBM cards?
1323        Jack doesn't work with ALSAs MMAP emulation - WHY NOT? */
1324        snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1325                                                snd_dma_pci_data(asihpi->pci),
1326                                                64*1024, BUFFER_BYTES_MAX);
1327
1328        return 0;
1329}
1330
1331/***************************** MIXER CONTROLS ****************/
1332struct hpi_control {
1333        u32 h_control;
1334        u16 control_type;
1335        u16 src_node_type;
1336        u16 src_node_index;
1337        u16 dst_node_type;
1338        u16 dst_node_index;
1339        u16 band;
1340        char name[44]; /* copied to snd_ctl_elem_id.name[44]; */
1341};
1342
1343static const char * const asihpi_tuner_band_names[] = {
1344        "invalid",
1345        "AM",
1346        "FM mono",
1347        "TV NTSC-M",
1348        "FM stereo",
1349        "AUX",
1350        "TV PAL BG",
1351        "TV PAL I",
1352        "TV PAL DK",
1353        "TV SECAM",
1354};
1355
1356compile_time_assert(
1357        (ARRAY_SIZE(asihpi_tuner_band_names) ==
1358                (HPI_TUNER_BAND_LAST+1)),
1359        assert_tuner_band_names_size);
1360
1361static const char * const asihpi_src_names[] = {
1362        "no source",
1363        "PCM",
1364        "Line",
1365        "Digital",
1366        "Tuner",
1367        "RF",
1368        "Clock",
1369        "Bitstream",
1370        "Microphone",
1371        "Cobranet",
1372        "Analog",
1373        "Adapter",
1374};
1375
1376compile_time_assert(
1377        (ARRAY_SIZE(asihpi_src_names) ==
1378                (HPI_SOURCENODE_LAST_INDEX-HPI_SOURCENODE_NONE+1)),
1379        assert_src_names_size);
1380
1381static const char * const asihpi_dst_names[] = {
1382        "no destination",
1383        "PCM",
1384        "Line",
1385        "Digital",
1386        "RF",
1387        "Speaker",
1388        "Cobranet Out",
1389        "Analog"
1390};
1391
1392compile_time_assert(
1393        (ARRAY_SIZE(asihpi_dst_names) ==
1394                (HPI_DESTNODE_LAST_INDEX-HPI_DESTNODE_NONE+1)),
1395        assert_dst_names_size);
1396
1397static inline int ctl_add(struct snd_card *card, struct snd_kcontrol_new *ctl,
1398                                struct snd_card_asihpi *asihpi)
1399{
1400        int err;
1401
1402        err = snd_ctl_add(card, snd_ctl_new1(ctl, asihpi));
1403        if (err < 0)
1404                return err;
1405        else if (mixer_dump)
1406                snd_printk(KERN_INFO "added %s(%d)\n", ctl->name, ctl->index);
1407
1408        return 0;
1409}
1410
1411/* Convert HPI control name and location into ALSA control name */
1412static void asihpi_ctl_init(struct snd_kcontrol_new *snd_control,
1413                                struct hpi_control *hpi_ctl,
1414                                char *name)
1415{
1416        char *dir = "";
1417        memset(snd_control, 0, sizeof(*snd_control));
1418        snd_control->name = hpi_ctl->name;
1419        snd_control->private_value = hpi_ctl->h_control;
1420        snd_control->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1421        snd_control->index = 0;
1422
1423        if (hpi_ctl->dst_node_type + HPI_DESTNODE_NONE == HPI_DESTNODE_ISTREAM)
1424                dir = "Capture ";  /* On or towards a PCM capture destination*/
1425        else if ((hpi_ctl->src_node_type + HPI_SOURCENODE_NONE != HPI_SOURCENODE_OSTREAM) &&
1426                (!hpi_ctl->dst_node_type))
1427                dir = "Capture "; /* On a source node that is not PCM playback */
1428        else if (hpi_ctl->src_node_type &&
1429                (hpi_ctl->src_node_type + HPI_SOURCENODE_NONE != HPI_SOURCENODE_OSTREAM) &&
1430                (hpi_ctl->dst_node_type))
1431                dir = "Monitor Playback "; /* Between an input and an output */
1432        else
1433                dir = "Playback "; /* PCM Playback source, or  output node */
1434
1435        if (hpi_ctl->src_node_type && hpi_ctl->dst_node_type)
1436                sprintf(hpi_ctl->name, "%s%d %s%d %s%s",
1437                        asihpi_src_names[hpi_ctl->src_node_type],
1438                        hpi_ctl->src_node_index,
1439                        asihpi_dst_names[hpi_ctl->dst_node_type],
1440                        hpi_ctl->dst_node_index,
1441                        dir, name);
1442        else if (hpi_ctl->dst_node_type) {
1443                sprintf(hpi_ctl->name, "%s %d %s%s",
1444                asihpi_dst_names[hpi_ctl->dst_node_type],
1445                hpi_ctl->dst_node_index,
1446                dir, name);
1447        } else {
1448                sprintf(hpi_ctl->name, "%s %d %s%s",
1449                asihpi_src_names[hpi_ctl->src_node_type],
1450                hpi_ctl->src_node_index,
1451                dir, name);
1452        }
1453        /* printk(KERN_INFO "Adding %s %d to %d ",  hpi_ctl->name,
1454                hpi_ctl->wSrcNodeType, hpi_ctl->wDstNodeType); */
1455}
1456
1457/*------------------------------------------------------------
1458   Volume controls
1459 ------------------------------------------------------------*/
1460#define VOL_STEP_mB 1
1461static int snd_asihpi_volume_info(struct snd_kcontrol *kcontrol,
1462                                  struct snd_ctl_elem_info *uinfo)
1463{
1464        u32 h_control = kcontrol->private_value;
1465        u16 err;
1466        /* native gains are in millibels */
1467        short min_gain_mB;
1468        short max_gain_mB;
1469        short step_gain_mB;
1470
1471        err = hpi_volume_query_range(h_control,
1472                        &min_gain_mB, &max_gain_mB, &step_gain_mB);
1473        if (err) {
1474                max_gain_mB = 0;
1475                min_gain_mB = -10000;
1476                step_gain_mB = VOL_STEP_mB;
1477        }
1478
1479        uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1480        uinfo->count = 2;
1481        uinfo->value.integer.min = min_gain_mB / VOL_STEP_mB;
1482        uinfo->value.integer.max = max_gain_mB / VOL_STEP_mB;
1483        uinfo->value.integer.step = step_gain_mB / VOL_STEP_mB;
1484        return 0;
1485}
1486
1487static int snd_asihpi_volume_get(struct snd_kcontrol *kcontrol,
1488                                 struct snd_ctl_elem_value *ucontrol)
1489{
1490        u32 h_control = kcontrol->private_value;
1491        short an_gain_mB[HPI_MAX_CHANNELS];
1492
1493        hpi_handle_error(hpi_volume_get_gain(h_control, an_gain_mB));
1494        ucontrol->value.integer.value[0] = an_gain_mB[0] / VOL_STEP_mB;
1495        ucontrol->value.integer.value[1] = an_gain_mB[1] / VOL_STEP_mB;
1496
1497        return 0;
1498}
1499
1500static int snd_asihpi_volume_put(struct snd_kcontrol *kcontrol,
1501                                 struct snd_ctl_elem_value *ucontrol)
1502{
1503        int change;
1504        u32 h_control = kcontrol->private_value;
1505        short an_gain_mB[HPI_MAX_CHANNELS];
1506
1507        an_gain_mB[0] =
1508            (ucontrol->value.integer.value[0]) * VOL_STEP_mB;
1509        an_gain_mB[1] =
1510            (ucontrol->value.integer.value[1]) * VOL_STEP_mB;
1511        /*  change = asihpi->mixer_volume[addr][0] != left ||
1512           asihpi->mixer_volume[addr][1] != right;
1513         */
1514        change = 1;
1515        hpi_handle_error(hpi_volume_set_gain(h_control, an_gain_mB));
1516        return change;
1517}
1518
1519static const DECLARE_TLV_DB_SCALE(db_scale_100, -10000, VOL_STEP_mB, 0);
1520
1521static int __devinit snd_asihpi_volume_add(struct snd_card_asihpi *asihpi,
1522                                        struct hpi_control *hpi_ctl)
1523{
1524        struct snd_card *card = asihpi->card;
1525        struct snd_kcontrol_new snd_control;
1526
1527        asihpi_ctl_init(&snd_control, hpi_ctl, "Volume");
1528        snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
1529                                SNDRV_CTL_ELEM_ACCESS_TLV_READ;
1530        snd_control.info = snd_asihpi_volume_info;
1531        snd_control.get = snd_asihpi_volume_get;
1532        snd_control.put = snd_asihpi_volume_put;
1533        snd_control.tlv.p = db_scale_100;
1534
1535        return ctl_add(card, &snd_control, asihpi);
1536}
1537
1538/*------------------------------------------------------------
1539   Level controls
1540 ------------------------------------------------------------*/
1541static int snd_asihpi_level_info(struct snd_kcontrol *kcontrol,
1542                                 struct snd_ctl_elem_info *uinfo)
1543{
1544        u32 h_control = kcontrol->private_value;
1545        u16 err;
1546        short min_gain_mB;
1547        short max_gain_mB;
1548        short step_gain_mB;
1549
1550        err =
1551            hpi_level_query_range(h_control, &min_gain_mB,
1552                               &max_gain_mB, &step_gain_mB);
1553        if (err) {
1554                max_gain_mB = 2400;
1555                min_gain_mB = -1000;
1556                step_gain_mB = 100;
1557        }
1558
1559        uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1560        uinfo->count = 2;
1561        uinfo->value.integer.min = min_gain_mB / HPI_UNITS_PER_dB;
1562        uinfo->value.integer.max = max_gain_mB / HPI_UNITS_PER_dB;
1563        uinfo->value.integer.step = step_gain_mB / HPI_UNITS_PER_dB;
1564        return 0;
1565}
1566
1567static int snd_asihpi_level_get(struct snd_kcontrol *kcontrol,
1568                                struct snd_ctl_elem_value *ucontrol)
1569{
1570        u32 h_control = kcontrol->private_value;
1571        short an_gain_mB[HPI_MAX_CHANNELS];
1572
1573        hpi_handle_error(hpi_level_get_gain(h_control, an_gain_mB));
1574        ucontrol->value.integer.value[0] =
1575            an_gain_mB[0] / HPI_UNITS_PER_dB;
1576        ucontrol->value.integer.value[1] =
1577            an_gain_mB[1] / HPI_UNITS_PER_dB;
1578
1579        return 0;
1580}
1581
1582static int snd_asihpi_level_put(struct snd_kcontrol *kcontrol,
1583                                struct snd_ctl_elem_value *ucontrol)
1584{
1585        int change;
1586        u32 h_control = kcontrol->private_value;
1587        short an_gain_mB[HPI_MAX_CHANNELS];
1588
1589        an_gain_mB[0] =
1590            (ucontrol->value.integer.value[0]) * HPI_UNITS_PER_dB;
1591        an_gain_mB[1] =
1592            (ucontrol->value.integer.value[1]) * HPI_UNITS_PER_dB;
1593        /*  change = asihpi->mixer_level[addr][0] != left ||
1594           asihpi->mixer_level[addr][1] != right;
1595         */
1596        change = 1;
1597        hpi_handle_error(hpi_level_set_gain(h_control, an_gain_mB));
1598        return change;
1599}
1600
1601static const DECLARE_TLV_DB_SCALE(db_scale_level, -1000, 100, 0);
1602
1603static int __devinit snd_asihpi_level_add(struct snd_card_asihpi *asihpi,
1604                                        struct hpi_control *hpi_ctl)
1605{
1606        struct snd_card *card = asihpi->card;
1607        struct snd_kcontrol_new snd_control;
1608
1609        /* can't use 'volume' cos some nodes have volume as well */
1610        asihpi_ctl_init(&snd_control, hpi_ctl, "Level");
1611        snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
1612                                SNDRV_CTL_ELEM_ACCESS_TLV_READ;
1613        snd_control.info = snd_asihpi_level_info;
1614        snd_control.get = snd_asihpi_level_get;
1615        snd_control.put = snd_asihpi_level_put;
1616        snd_control.tlv.p = db_scale_level;
1617
1618        return ctl_add(card, &snd_control, asihpi);
1619}
1620
1621/*------------------------------------------------------------
1622   AESEBU controls
1623 ------------------------------------------------------------*/
1624
1625/* AESEBU format */
1626static const char * const asihpi_aesebu_format_names[] = {
1627        "N/A", "S/PDIF", "AES/EBU" };
1628
1629static int snd_asihpi_aesebu_format_info(struct snd_kcontrol *kcontrol,
1630                                  struct snd_ctl_elem_info *uinfo)
1631{
1632        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1633        uinfo->count = 1;
1634        uinfo->value.enumerated.items = 3;
1635
1636        if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
1637                uinfo->value.enumerated.item =
1638                        uinfo->value.enumerated.items - 1;
1639
1640        strcpy(uinfo->value.enumerated.name,
1641                asihpi_aesebu_format_names[uinfo->value.enumerated.item]);
1642
1643        return 0;
1644}
1645
1646static int snd_asihpi_aesebu_format_get(struct snd_kcontrol *kcontrol,
1647                        struct snd_ctl_elem_value *ucontrol,
1648                        u16 (*func)(u32, u16 *))
1649{
1650        u32 h_control = kcontrol->private_value;
1651        u16 source, err;
1652
1653        err = func(h_control, &source);
1654
1655        /* default to N/A */
1656        ucontrol->value.enumerated.item[0] = 0;
1657        /* return success but set the control to N/A */
1658        if (err)
1659                return 0;
1660        if (source == HPI_AESEBU_FORMAT_SPDIF)
1661                ucontrol->value.enumerated.item[0] = 1;
1662        if (source == HPI_AESEBU_FORMAT_AESEBU)
1663                ucontrol->value.enumerated.item[0] = 2;
1664
1665        return 0;
1666}
1667
1668static int snd_asihpi_aesebu_format_put(struct snd_kcontrol *kcontrol,
1669                        struct snd_ctl_elem_value *ucontrol,
1670                         u16 (*func)(u32, u16))
1671{
1672        u32 h_control = kcontrol->private_value;
1673
1674        /* default to S/PDIF */
1675        u16 source = HPI_AESEBU_FORMAT_SPDIF;
1676
1677        if (ucontrol->value.enumerated.item[0] == 1)
1678                source = HPI_AESEBU_FORMAT_SPDIF;
1679        if (ucontrol->value.enumerated.item[0] == 2)
1680                source = HPI_AESEBU_FORMAT_AESEBU;
1681
1682        if (func(h_control, source) != 0)
1683                return -EINVAL;
1684
1685        return 1;
1686}
1687
1688static int snd_asihpi_aesebu_rx_format_get(struct snd_kcontrol *kcontrol,
1689                                 struct snd_ctl_elem_value *ucontrol) {
1690        return snd_asihpi_aesebu_format_get(kcontrol, ucontrol,
1691                                        hpi_aesebu_receiver_get_format);
1692}
1693
1694static int snd_asihpi_aesebu_rx_format_put(struct snd_kcontrol *kcontrol,
1695                                 struct snd_ctl_elem_value *ucontrol) {
1696        return snd_asihpi_aesebu_format_put(kcontrol, ucontrol,
1697                                        hpi_aesebu_receiver_set_format);
1698}
1699
1700static int snd_asihpi_aesebu_rxstatus_info(struct snd_kcontrol *kcontrol,
1701                                  struct snd_ctl_elem_info *uinfo)
1702{
1703        uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1704        uinfo->count = 1;
1705
1706        uinfo->value.integer.min = 0;
1707        uinfo->value.integer.max = 0X1F;
1708        uinfo->value.integer.step = 1;
1709
1710        return 0;
1711}
1712
1713static int snd_asihpi_aesebu_rxstatus_get(struct snd_kcontrol *kcontrol,
1714                                 struct snd_ctl_elem_value *ucontrol) {
1715
1716        u32 h_control = kcontrol->private_value;
1717        u16 status;
1718
1719        hpi_handle_error(hpi_aesebu_receiver_get_error_status(
1720                                         h_control, &status));
1721        ucontrol->value.integer.value[0] = status;
1722        return 0;
1723}
1724
1725static int __devinit snd_asihpi_aesebu_rx_add(struct snd_card_asihpi *asihpi,
1726                                        struct hpi_control *hpi_ctl)
1727{
1728        struct snd_card *card = asihpi->card;
1729        struct snd_kcontrol_new snd_control;
1730
1731        asihpi_ctl_init(&snd_control, hpi_ctl, "Format");
1732        snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
1733        snd_control.info = snd_asihpi_aesebu_format_info;
1734        snd_control.get = snd_asihpi_aesebu_rx_format_get;
1735        snd_control.put = snd_asihpi_aesebu_rx_format_put;
1736
1737
1738        if (ctl_add(card, &snd_control, asihpi) < 0)
1739                return -EINVAL;
1740
1741        asihpi_ctl_init(&snd_control, hpi_ctl, "Status");
1742        snd_control.access =
1743            SNDRV_CTL_ELEM_ACCESS_VOLATILE | SNDRV_CTL_ELEM_ACCESS_READ;
1744        snd_control.info = snd_asihpi_aesebu_rxstatus_info;
1745        snd_control.get = snd_asihpi_aesebu_rxstatus_get;
1746
1747        return ctl_add(card, &snd_control, asihpi);
1748}
1749
1750static int snd_asihpi_aesebu_tx_format_get(struct snd_kcontrol *kcontrol,
1751                                 struct snd_ctl_elem_value *ucontrol) {
1752        return snd_asihpi_aesebu_format_get(kcontrol, ucontrol,
1753                                        hpi_aesebu_transmitter_get_format);
1754}
1755
1756static int snd_asihpi_aesebu_tx_format_put(struct snd_kcontrol *kcontrol,
1757                                 struct snd_ctl_elem_value *ucontrol) {
1758        return snd_asihpi_aesebu_format_put(kcontrol, ucontrol,
1759                                        hpi_aesebu_transmitter_set_format);
1760}
1761
1762
1763static int __devinit snd_asihpi_aesebu_tx_add(struct snd_card_asihpi *asihpi,
1764                                        struct hpi_control *hpi_ctl)
1765{
1766        struct snd_card *card = asihpi->card;
1767        struct snd_kcontrol_new snd_control;
1768
1769        asihpi_ctl_init(&snd_control, hpi_ctl, "Format");
1770        snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
1771        snd_control.info = snd_asihpi_aesebu_format_info;
1772        snd_control.get = snd_asihpi_aesebu_tx_format_get;
1773        snd_control.put = snd_asihpi_aesebu_tx_format_put;
1774
1775        return ctl_add(card, &snd_control, asihpi);
1776}
1777
1778/*------------------------------------------------------------
1779   Tuner controls
1780 ------------------------------------------------------------*/
1781
1782/* Gain */
1783
1784static int snd_asihpi_tuner_gain_info(struct snd_kcontrol *kcontrol,
1785                                  struct snd_ctl_elem_info *uinfo)
1786{
1787        u32 h_control = kcontrol->private_value;
1788        u16 err;
1789        short idx;
1790        u16 gain_range[3];
1791
1792        for (idx = 0; idx < 3; idx++) {
1793                err = hpi_tuner_query_gain(h_control,
1794                                          idx, &gain_range[idx]);
1795                if (err != 0)
1796                        return err;
1797        }
1798
1799        uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1800        uinfo->count = 1;
1801        uinfo->value.integer.min = ((int)gain_range[0]) / HPI_UNITS_PER_dB;
1802        uinfo->value.integer.max = ((int)gain_range[1]) / HPI_UNITS_PER_dB;
1803        uinfo->value.integer.step = ((int) gain_range[2]) / HPI_UNITS_PER_dB;
1804        return 0;
1805}
1806
1807static int snd_asihpi_tuner_gain_get(struct snd_kcontrol *kcontrol,
1808                                 struct snd_ctl_elem_value *ucontrol)
1809{
1810        /*
1811        struct snd_card_asihpi *asihpi = snd_kcontrol_chip(kcontrol);
1812        */
1813        u32 h_control = kcontrol->private_value;
1814        short gain;
1815
1816        hpi_handle_error(hpi_tuner_get_gain(h_control, &gain));
1817        ucontrol->value.integer.value[0] = gain / HPI_UNITS_PER_dB;
1818
1819        return 0;
1820}
1821
1822static int snd_asihpi_tuner_gain_put(struct snd_kcontrol *kcontrol,
1823                                 struct snd_ctl_elem_value *ucontrol)
1824{
1825        /*
1826        struct snd_card_asihpi *asihpi = snd_kcontrol_chip(kcontrol);
1827        */
1828        u32 h_control = kcontrol->private_value;
1829        short gain;
1830
1831        gain = (ucontrol->value.integer.value[0]) * HPI_UNITS_PER_dB;
1832        hpi_handle_error(hpi_tuner_set_gain(h_control, gain));
1833
1834        return 1;
1835}
1836
1837/* Band  */
1838
1839static int asihpi_tuner_band_query(struct snd_kcontrol *kcontrol,
1840                                        u16 *band_list, u32 len) {
1841        u32 h_control = kcontrol->private_value;
1842        u16 err = 0;
1843        u32 i;
1844
1845        for (i = 0; i < len; i++) {
1846                err = hpi_tuner_query_band(
1847                                h_control, i, &band_list[i]);
1848                if (err != 0)
1849                        break;
1850        }
1851
1852        if (err && (err != HPI_ERROR_INVALID_OBJ_INDEX))
1853                return -EIO;
1854
1855        return i;
1856}
1857
1858static int snd_asihpi_tuner_band_info(struct snd_kcontrol *kcontrol,
1859                                  struct snd_ctl_elem_info *uinfo)
1860{
1861        u16 tuner_bands[HPI_TUNER_BAND_LAST];
1862        int num_bands = 0;
1863
1864        num_bands = asihpi_tuner_band_query(kcontrol, tuner_bands,
1865                                HPI_TUNER_BAND_LAST);
1866
1867        if (num_bands < 0)
1868                return num_bands;
1869
1870        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1871        uinfo->count = 1;
1872        uinfo->value.enumerated.items = num_bands;
1873
1874        if (num_bands > 0) {
1875                if (uinfo->value.enumerated.item >=
1876                                        uinfo->value.enumerated.items)
1877                        uinfo->value.enumerated.item =
1878                                uinfo->value.enumerated.items - 1;
1879
1880                strcpy(uinfo->value.enumerated.name,
1881                        asihpi_tuner_band_names[
1882                                tuner_bands[uinfo->value.enumerated.item]]);
1883
1884        }
1885        return 0;
1886}
1887
1888static int snd_asihpi_tuner_band_get(struct snd_kcontrol *kcontrol,
1889                                 struct snd_ctl_elem_value *ucontrol)
1890{
1891        u32 h_control = kcontrol->private_value;
1892        /*
1893        struct snd_card_asihpi *asihpi = snd_kcontrol_chip(kcontrol);
1894        */
1895        u16 band, idx;
1896        u16 tuner_bands[HPI_TUNER_BAND_LAST];
1897        u32 num_bands = 0;
1898
1899        num_bands = asihpi_tuner_band_query(kcontrol, tuner_bands,
1900                                HPI_TUNER_BAND_LAST);
1901
1902        hpi_handle_error(hpi_tuner_get_band(h_control, &band));
1903
1904        ucontrol->value.enumerated.item[0] = -1;
1905        for (idx = 0; idx < HPI_TUNER_BAND_LAST; idx++)
1906                if (tuner_bands[idx] == band) {
1907                        ucontrol->value.enumerated.item[0] = idx;
1908                        break;
1909                }
1910
1911        return 0;
1912}
1913
1914static int snd_asihpi_tuner_band_put(struct snd_kcontrol *kcontrol,
1915                                 struct snd_ctl_elem_value *ucontrol)
1916{
1917        /*
1918        struct snd_card_asihpi *asihpi = snd_kcontrol_chip(kcontrol);
1919        */
1920        u32 h_control = kcontrol->private_value;
1921        u16 band;
1922        u16 tuner_bands[HPI_TUNER_BAND_LAST];
1923        u32 num_bands = 0;
1924
1925        num_bands = asihpi_tuner_band_query(kcontrol, tuner_bands,
1926                        HPI_TUNER_BAND_LAST);
1927
1928        band = tuner_bands[ucontrol->value.enumerated.item[0]];
1929        hpi_handle_error(hpi_tuner_set_band(h_control, band));
1930
1931        return 1;
1932}
1933
1934/* Freq */
1935
1936static 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
1981static 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
1993static 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  */
2006static int __devinit 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 ------------------------------------------------------------*/
2044static int snd_asihpi_meter_info(struct snd_kcontrol *kcontrol,
2045                                 struct snd_ctl_elem_info *uinfo)
2046{
2047        uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2048        uinfo->count = HPI_MAX_CHANNELS;
2049        uinfo->value.integer.min = 0;
2050        uinfo->value.integer.max = 0x7FFFFFFF;
2051        return 0;
2052}
2053
2054/* linear values for 10dB steps */
2055static int log2lin[] = {
2056        0x7FFFFFFF, /* 0dB */
2057        679093956,
2058        214748365,
2059         67909396,
2060         21474837,
2061          6790940,
2062          2147484, /* -60dB */
2063           679094,
2064           214748, /* -80 */
2065            67909,
2066            21475, /* -100 */
2067             6791,
2068             2147,
2069              679,
2070              214,
2071               68,
2072               21,
2073                7,
2074                2
2075};
2076
2077static int snd_asihpi_meter_get(struct snd_kcontrol *kcontrol,
2078                                struct snd_ctl_elem_value *ucontrol)
2079{
2080        u32 h_control = kcontrol->private_value;
2081        short an_gain_mB[HPI_MAX_CHANNELS], i;
2082        u16 err;
2083
2084        err = hpi_meter_get_peak(h_control, an_gain_mB);
2085
2086        for (i = 0; i < HPI_MAX_CHANNELS; i++) {
2087                if (err) {
2088                        ucontrol->value.integer.value[i] = 0;
2089                } else if (an_gain_mB[i] >= 0) {
2090                        ucontrol->value.integer.value[i] =
2091                                an_gain_mB[i] << 16;
2092                } else {
2093                        /* -ve is log value in millibels < -60dB,
2094                        * convert to (roughly!) linear,
2095                        */
2096                        ucontrol->value.integer.value[i] =
2097                                        log2lin[an_gain_mB[i] / -1000];
2098                }
2099        }
2100        return 0;
2101}
2102
2103static int __devinit snd_asihpi_meter_add(struct snd_card_asihpi *asihpi,
2104                                        struct hpi_control *hpi_ctl, int subidx)
2105{
2106        struct snd_card *card = asihpi->card;
2107        struct snd_kcontrol_new snd_control;
2108
2109        asihpi_ctl_init(&snd_control, hpi_ctl, "Meter");
2110        snd_control.access =
2111            SNDRV_CTL_ELEM_ACCESS_VOLATILE | SNDRV_CTL_ELEM_ACCESS_READ;
2112        snd_control.info = snd_asihpi_meter_info;
2113        snd_control.get = snd_asihpi_meter_get;
2114
2115        snd_control.index = subidx;
2116
2117        return ctl_add(card, &snd_control, asihpi);
2118}
2119
2120/*------------------------------------------------------------
2121   Multiplexer controls
2122 ------------------------------------------------------------*/
2123static int snd_card_asihpi_mux_count_sources(struct snd_kcontrol *snd_control)
2124{
2125        u32 h_control = snd_control->private_value;
2126        struct hpi_control hpi_ctl;
2127        int s, err;
2128        for (s = 0; s < 32; s++) {
2129                err = hpi_multiplexer_query_source(h_control, s,
2130                                                  &hpi_ctl.
2131                                                  src_node_type,
2132                                                  &hpi_ctl.
2133                                                  src_node_index);
2134                if (err)
2135                        break;
2136        }
2137        return s;
2138}
2139
2140static int snd_asihpi_mux_info(struct snd_kcontrol *kcontrol,
2141                               struct snd_ctl_elem_info *uinfo)
2142{
2143        int err;
2144        u16 src_node_type, src_node_index;
2145        u32 h_control = kcontrol->private_value;
2146
2147        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2148        uinfo->count = 1;
2149        uinfo->value.enumerated.items =
2150            snd_card_asihpi_mux_count_sources(kcontrol);
2151
2152        if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
2153                uinfo->value.enumerated.item =
2154                    uinfo->value.enumerated.items - 1;
2155
2156        err =
2157            hpi_multiplexer_query_source(h_control,
2158                                        uinfo->value.enumerated.item,
2159                                        &src_node_type, &src_node_index);
2160
2161        sprintf(uinfo->value.enumerated.name, "%s %d",
2162                asihpi_src_names[src_node_type - HPI_SOURCENODE_NONE],
2163                src_node_index);
2164        return 0;
2165}
2166
2167static int snd_asihpi_mux_get(struct snd_kcontrol *kcontrol,
2168                              struct snd_ctl_elem_value *ucontrol)
2169{
2170        u32 h_control = kcontrol->private_value;
2171        u16 source_type, source_index;
2172        u16 src_node_type, src_node_index;
2173        int s;
2174
2175        hpi_handle_error(hpi_multiplexer_get_source(h_control,
2176                                &source_type, &source_index));
2177        /* Should cache this search result! */
2178        for (s = 0; s < 256; s++) {
2179                if (hpi_multiplexer_query_source(h_control, s,
2180                                            &src_node_type, &src_node_index))
2181                        break;
2182
2183                if ((source_type == src_node_type)
2184                    && (source_index == src_node_index)) {
2185                        ucontrol->value.enumerated.item[0] = s;
2186                        return 0;
2187                }
2188        }
2189        snd_printd(KERN_WARNING
2190                "Control %x failed to match mux source %hu %hu\n",
2191                h_control, source_type, source_index);
2192        ucontrol->value.enumerated.item[0] = 0;
2193        return 0;
2194}
2195
2196static int snd_asihpi_mux_put(struct snd_kcontrol *kcontrol,
2197                              struct snd_ctl_elem_value *ucontrol)
2198{
2199        int change;
2200        u32 h_control = kcontrol->private_value;
2201        u16 source_type, source_index;
2202        u16 e;
2203
2204        change = 1;
2205
2206        e = hpi_multiplexer_query_source(h_control,
2207                                    ucontrol->value.enumerated.item[0],
2208                                    &source_type, &source_index);
2209        if (!e)
2210                hpi_handle_error(
2211                        hpi_multiplexer_set_source(h_control,
2212                                                source_type, source_index));
2213        return change;
2214}
2215
2216
2217static int  __devinit snd_asihpi_mux_add(struct snd_card_asihpi *asihpi,
2218                                        struct hpi_control *hpi_ctl)
2219{
2220        struct snd_card *card = asihpi->card;
2221        struct snd_kcontrol_new snd_control;
2222
2223        asihpi_ctl_init(&snd_control, hpi_ctl, "Route");
2224        snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
2225        snd_control.info = snd_asihpi_mux_info;
2226        snd_control.get = snd_asihpi_mux_get;
2227        snd_control.put = snd_asihpi_mux_put;
2228
2229        return ctl_add(card, &snd_control, asihpi);
2230
2231}
2232
2233/*------------------------------------------------------------
2234   Channel mode controls
2235 ------------------------------------------------------------*/
2236static int snd_asihpi_cmode_info(struct snd_kcontrol *kcontrol,
2237                                 struct snd_ctl_elem_info *uinfo)
2238{
2239        static const char * const mode_names[HPI_CHANNEL_MODE_LAST + 1] = {
2240                "invalid",
2241                "Normal", "Swap",
2242                "From Left", "From Right",
2243                "To Left", "To Right"
2244        };
2245
2246        u32 h_control = kcontrol->private_value;
2247        u16 mode;
2248        int i;
2249        u16 mode_map[6];
2250        int valid_modes = 0;
2251
2252        /* HPI channel mode values can be from 1 to 6
2253        Some adapters only support a contiguous subset
2254        */
2255        for (i = 0; i < HPI_CHANNEL_MODE_LAST; i++)
2256                if (!hpi_channel_mode_query_mode(
2257                        h_control, i, &mode)) {
2258                        mode_map[valid_modes] = mode;
2259                        valid_modes++;
2260                        }
2261
2262        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2263        uinfo->count = 1;
2264        uinfo->value.enumerated.items = valid_modes;
2265
2266        if (uinfo->value.enumerated.item >= valid_modes)
2267                uinfo->value.enumerated.item = valid_modes - 1;
2268
2269        strcpy(uinfo->value.enumerated.name,
2270               mode_names[mode_map[uinfo->value.enumerated.item]]);
2271
2272        return 0;
2273}
2274
2275static int snd_asihpi_cmode_get(struct snd_kcontrol *kcontrol,
2276                                struct snd_ctl_elem_value *ucontrol)
2277{
2278        u32 h_control = kcontrol->private_value;
2279        u16 mode;
2280
2281        if (hpi_channel_mode_get(h_control, &mode))
2282                mode = 1;
2283
2284        ucontrol->value.enumerated.item[0] = mode - 1;
2285
2286        return 0;
2287}
2288
2289static int snd_asihpi_cmode_put(struct snd_kcontrol *kcontrol,
2290                                struct snd_ctl_elem_value *ucontrol)
2291{
2292        int change;
2293        u32 h_control = kcontrol->private_value;
2294
2295        change = 1;
2296
2297        hpi_handle_error(hpi_channel_mode_set(h_control,
2298                           ucontrol->value.enumerated.item[0] + 1));
2299        return change;
2300}
2301
2302
2303static int __devinit snd_asihpi_cmode_add(struct snd_card_asihpi *asihpi,
2304                                        struct hpi_control *hpi_ctl)
2305{
2306        struct snd_card *card = asihpi->card;
2307        struct snd_kcontrol_new snd_control;
2308
2309        asihpi_ctl_init(&snd_control, hpi_ctl, "Mode");
2310        snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
2311        snd_control.info = snd_asihpi_cmode_info;
2312        snd_control.get = snd_asihpi_cmode_get;
2313        snd_control.put = snd_asihpi_cmode_put;
2314
2315        return ctl_add(card, &snd_control, asihpi);
2316}
2317
2318/*------------------------------------------------------------
2319   Sampleclock source  controls
2320 ------------------------------------------------------------*/
2321static char *sampleclock_sources[MAX_CLOCKSOURCES] = {
2322        "N/A", "Local PLL", "Digital Sync", "Word External", "Word Header",
2323        "SMPTE", "Digital1", "Auto", "Network", "Invalid",
2324        "Prev Module",
2325        "Digital2", "Digital3", "Digital4", "Digital5",
2326        "Digital6", "Digital7", "Digital8"};
2327
2328static int snd_asihpi_clksrc_info(struct snd_kcontrol *kcontrol,
2329                                  struct snd_ctl_elem_info *uinfo)
2330{
2331        struct snd_card_asihpi *asihpi =
2332                        (struct snd_card_asihpi *)(kcontrol->private_data);
2333        struct clk_cache *clkcache = &asihpi->cc;
2334        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2335        uinfo->count = 1;
2336        uinfo->value.enumerated.items = clkcache->count;
2337
2338        if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
2339                uinfo->value.enumerated.item =
2340                                uinfo->value.enumerated.items - 1;
2341
2342        strcpy(uinfo->value.enumerated.name,
2343               clkcache->s[uinfo->value.enumerated.item].name);
2344        return 0;
2345}
2346
2347static int snd_asihpi_clksrc_get(struct snd_kcontrol *kcontrol,
2348                                 struct snd_ctl_elem_value *ucontrol)
2349{
2350        struct snd_card_asihpi *asihpi =
2351                        (struct snd_card_asihpi *)(kcontrol->private_data);
2352        struct clk_cache *clkcache = &asihpi->cc;
2353        u32 h_control = kcontrol->private_value;
2354        u16 source, srcindex = 0;
2355        int i;
2356
2357        ucontrol->value.enumerated.item[0] = 0;
2358        if (hpi_sample_clock_get_source(h_control, &source))
2359                source = 0;
2360
2361        if (source == HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT)
2362                if (hpi_sample_clock_get_source_index(h_control, &srcindex))
2363                        srcindex = 0;
2364
2365        for (i = 0; i < clkcache->count; i++)
2366                if ((clkcache->s[i].source == source) &&
2367                        (clkcache->s[i].index == srcindex))
2368                        break;
2369
2370        ucontrol->value.enumerated.item[0] = i;
2371
2372        return 0;
2373}
2374
2375static int snd_asihpi_clksrc_put(struct snd_kcontrol *kcontrol,
2376                                 struct snd_ctl_elem_value *ucontrol)
2377{
2378        struct snd_card_asihpi *asihpi =
2379                        (struct snd_card_asihpi *)(kcontrol->private_data);
2380        struct clk_cache *clkcache = &asihpi->cc;
2381        int change, item;
2382        u32 h_control = kcontrol->private_value;
2383
2384        change = 1;
2385        item = ucontrol->value.enumerated.item[0];
2386        if (item >= clkcache->count)
2387                item = clkcache->count-1;
2388
2389        hpi_handle_error(hpi_sample_clock_set_source(
2390                                h_control, clkcache->s[item].source));
2391
2392        if (clkcache->s[item].source == HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT)
2393                hpi_handle_error(hpi_sample_clock_set_source_index(
2394                                h_control, clkcache->s[item].index));
2395        return change;
2396}
2397
2398/*------------------------------------------------------------
2399   Clkrate controls
2400 ------------------------------------------------------------*/
2401/* Need to change this to enumerated control with list of rates */
2402static int snd_asihpi_clklocal_info(struct snd_kcontrol *kcontrol,
2403                                   struct snd_ctl_elem_info *uinfo)
2404{
2405        uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2406        uinfo->count = 1;
2407        uinfo->value.integer.min = 8000;
2408        uinfo->value.integer.max = 192000;
2409        uinfo->value.integer.step = 100;
2410
2411        return 0;
2412}
2413
2414static int snd_asihpi_clklocal_get(struct snd_kcontrol *kcontrol,
2415                                  struct snd_ctl_elem_value *ucontrol)
2416{
2417        u32 h_control = kcontrol->private_value;
2418        u32 rate;
2419        u16 e;
2420
2421        e = hpi_sample_clock_get_local_rate(h_control, &rate);
2422        if (!e)
2423                ucontrol->value.integer.value[0] = rate;
2424        else
2425                ucontrol->value.integer.value[0] = 0;
2426        return 0;
2427}
2428
2429static int snd_asihpi_clklocal_put(struct snd_kcontrol *kcontrol,
2430                                  struct snd_ctl_elem_value *ucontrol)
2431{
2432        int change;
2433        u32 h_control = kcontrol->private_value;
2434
2435        /*  change = asihpi->mixer_clkrate[addr][0] != left ||
2436           asihpi->mixer_clkrate[addr][1] != right;
2437         */
2438        change = 1;
2439        hpi_handle_error(hpi_sample_clock_set_local_rate(h_control,
2440                                      ucontrol->value.integer.value[0]));
2441        return change;
2442}
2443
2444static int snd_asihpi_clkrate_info(struct snd_kcontrol *kcontrol,
2445                                   struct snd_ctl_elem_info *uinfo)
2446{
2447        uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2448        uinfo->count = 1;
2449        uinfo->value.integer.min = 8000;
2450        uinfo->value.integer.max = 192000;
2451        uinfo->value.integer.step = 100;
2452
2453        return 0;
2454}
2455
2456static int snd_asihpi_clkrate_get(struct snd_kcontrol *kcontrol,
2457                                  struct snd_ctl_elem_value *ucontrol)
2458{
2459        u32 h_control = kcontrol->private_value;
2460        u32 rate;
2461        u16 e;
2462
2463        e = hpi_sample_clock_get_sample_rate(h_control, &rate);
2464        if (!e)
2465                ucontrol->value.integer.value[0] = rate;
2466        else
2467                ucontrol->value.integer.value[0] = 0;
2468        return 0;
2469}
2470
2471static int __devinit snd_asihpi_sampleclock_add(struct snd_card_asihpi *asihpi,
2472                                        struct hpi_control *hpi_ctl)
2473{
2474        struct snd_card *card = asihpi->card;
2475        struct snd_kcontrol_new snd_control;
2476
2477        struct clk_cache *clkcache = &asihpi->cc;
2478        u32 hSC =  hpi_ctl->h_control;
2479        int has_aes_in = 0;
2480        int i, j;
2481        u16 source;
2482
2483        snd_control.private_value = hpi_ctl->h_control;
2484
2485        clkcache->has_local = 0;
2486
2487        for (i = 0; i <= HPI_SAMPLECLOCK_SOURCE_LAST; i++) {
2488                if  (hpi_sample_clock_query_source(hSC,
2489                                i, &source))
2490                        break;
2491                clkcache->s[i].source = source;
2492                clkcache->s[i].index = 0;
2493                clkcache->s[i].name = sampleclock_sources[source];
2494                if (source == HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT)
2495                        has_aes_in = 1;
2496                if (source == HPI_SAMPLECLOCK_SOURCE_LOCAL)
2497                        clkcache->has_local = 1;
2498        }
2499        if (has_aes_in)
2500                /* already will have picked up index 0 above */
2501                for (j = 1; j < 8; j++) {
2502                        if (hpi_sample_clock_query_source_index(hSC,
2503                                j, HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT,
2504                                &source))
2505                                break;
2506                        clkcache->s[i].source =
2507                                HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT;
2508                        clkcache->s[i].index = j;
2509                        clkcache->s[i].name = sampleclock_sources[
2510                                        j+HPI_SAMPLECLOCK_SOURCE_LAST];
2511                        i++;
2512                }
2513        clkcache->count = i;
2514
2515        asihpi_ctl_init(&snd_control, hpi_ctl, "Source");
2516        snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE ;
2517        snd_control.info = snd_asihpi_clksrc_info;
2518        snd_control.get = snd_asihpi_clksrc_get;
2519        snd_control.put = snd_asihpi_clksrc_put;
2520        if (ctl_add(card, &snd_control, asihpi) < 0)
2521                return -EINVAL;
2522
2523
2524        if (clkcache->has_local) {
2525                asihpi_ctl_init(&snd_control, hpi_ctl, "Localrate");
2526                snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE ;
2527                snd_control.info = snd_asihpi_clklocal_info;
2528                snd_control.get = snd_asihpi_clklocal_get;
2529                snd_control.put = snd_asihpi_clklocal_put;
2530
2531
2532                if (ctl_add(card, &snd_control, asihpi) < 0)
2533                        return -EINVAL;
2534        }
2535
2536        asihpi_ctl_init(&snd_control, hpi_ctl, "Rate");
2537        snd_control.access =
2538            SNDRV_CTL_ELEM_ACCESS_VOLATILE | SNDRV_CTL_ELEM_ACCESS_READ;
2539        snd_control.info = snd_asihpi_clkrate_info;
2540        snd_control.get = snd_asihpi_clkrate_get;
2541
2542        return ctl_add(card, &snd_control, asihpi);
2543}
2544/*------------------------------------------------------------
2545   Mixer
2546 ------------------------------------------------------------*/
2547
2548static int __devinit snd_card_asihpi_mixer_new(struct snd_card_asihpi *asihpi)
2549{
2550        struct snd_card *card = asihpi->card;
2551        unsigned int idx = 0;
2552        unsigned int subindex = 0;
2553        int err;
2554        struct hpi_control hpi_ctl, prev_ctl;
2555
2556        if (snd_BUG_ON(!asihpi))
2557                return -EINVAL;
2558        strcpy(card->mixername, "Asihpi Mixer");
2559
2560        err =
2561            hpi_mixer_open(asihpi->adapter_index,
2562                          &asihpi->h_mixer);
2563        hpi_handle_error(err);
2564        if (err)
2565                return -err;
2566
2567        memset(&prev_ctl, 0, sizeof(prev_ctl));
2568        prev_ctl.control_type = -1;
2569
2570        for (idx = 0; idx < 2000; idx++) {
2571                err = hpi_mixer_get_control_by_index(
2572                                asihpi->h_mixer,
2573                                idx,
2574                                &hpi_ctl.src_node_type,
2575                                &hpi_ctl.src_node_index,
2576                                &hpi_ctl.dst_node_type,
2577                                &hpi_ctl.dst_node_index,
2578                                &hpi_ctl.control_type,
2579                                &hpi_ctl.h_control);
2580                if (err) {
2581                        if (err == HPI_ERROR_CONTROL_DISABLED) {
2582                                if (mixer_dump)
2583                                        snd_printk(KERN_INFO
2584                                                   "Disabled HPI Control(%d)\n",
2585                                                   idx);
2586                                continue;
2587                        } else
2588                                break;
2589
2590                }
2591
2592                hpi_ctl.src_node_type -= HPI_SOURCENODE_NONE;
2593                hpi_ctl.dst_node_type -= HPI_DESTNODE_NONE;
2594
2595                /* ASI50xx in SSX mode has multiple meters on the same node.
2596                   Use subindex to create distinct ALSA controls
2597                   for any duplicated controls.
2598                */
2599                if ((hpi_ctl.control_type == prev_ctl.control_type) &&
2600                    (hpi_ctl.src_node_type == prev_ctl.src_node_type) &&
2601                    (hpi_ctl.src_node_index == prev_ctl.src_node_index) &&
2602                    (hpi_ctl.dst_node_type == prev_ctl.dst_node_type) &&
2603                    (hpi_ctl.dst_node_index == prev_ctl.dst_node_index))
2604                        subindex++;
2605                else
2606                        subindex = 0;
2607
2608                prev_ctl = hpi_ctl;
2609
2610                switch (hpi_ctl.control_type) {
2611                case HPI_CONTROL_VOLUME:
2612                        err = snd_asihpi_volume_add(asihpi, &hpi_ctl);
2613                        break;
2614                case HPI_CONTROL_LEVEL:
2615                        err = snd_asihpi_level_add(asihpi, &hpi_ctl);
2616                        break;
2617                case HPI_CONTROL_MULTIPLEXER:
2618                        err = snd_asihpi_mux_add(asihpi, &hpi_ctl);
2619                        break;
2620                case HPI_CONTROL_CHANNEL_MODE:
2621                        err = snd_asihpi_cmode_add(asihpi, &hpi_ctl);
2622                        break;
2623                case HPI_CONTROL_METER:
2624                        err = snd_asihpi_meter_add(asihpi, &hpi_ctl, subindex);
2625                        break;
2626                case HPI_CONTROL_SAMPLECLOCK:
2627                        err = snd_asihpi_sampleclock_add(
2628                                                asihpi, &hpi_ctl);
2629                        break;
2630                case HPI_CONTROL_CONNECTION:    /* ignore these */
2631                        continue;
2632                case HPI_CONTROL_TUNER:
2633                        err = snd_asihpi_tuner_add(asihpi, &hpi_ctl);
2634                        break;
2635                case HPI_CONTROL_AESEBU_TRANSMITTER:
2636                        err = snd_asihpi_aesebu_tx_add(asihpi, &hpi_ctl);
2637                        break;
2638                case HPI_CONTROL_AESEBU_RECEIVER:
2639                        err = snd_asihpi_aesebu_rx_add(asihpi, &hpi_ctl);
2640                        break;
2641                case HPI_CONTROL_VOX:
2642                case HPI_CONTROL_BITSTREAM:
2643                case HPI_CONTROL_MICROPHONE:
2644                case HPI_CONTROL_PARAMETRIC_EQ:
2645                case HPI_CONTROL_COMPANDER:
2646                default:
2647                        if (mixer_dump)
2648                                snd_printk(KERN_INFO
2649                                        "Untranslated HPI Control"
2650                                        "(%d) %d %d %d %d %d\n",
2651                                        idx,
2652                                        hpi_ctl.control_type,
2653                                        hpi_ctl.src_node_type,
2654                                        hpi_ctl.src_node_index,
2655                                        hpi_ctl.dst_node_type,
2656                                        hpi_ctl.dst_node_index);
2657                        continue;
2658                };
2659                if (err < 0)
2660                        return err;
2661        }
2662        if (HPI_ERROR_INVALID_OBJ_INDEX != err)
2663                hpi_handle_error(err);
2664
2665        snd_printk(KERN_INFO "%d mixer controls found\n", idx);
2666
2667        return 0;
2668}
2669
2670/*------------------------------------------------------------
2671   /proc interface
2672 ------------------------------------------------------------*/
2673
2674static void
2675snd_asihpi_proc_read(struct snd_info_entry *entry,
2676                        struct snd_info_buffer *buffer)
2677{
2678        struct snd_card_asihpi *asihpi = entry->private_data;
2679        u16 version;
2680        u32 h_control;
2681        u32 rate = 0;
2682        u16 source = 0;
2683        int err;
2684
2685        snd_iprintf(buffer, "ASIHPI driver proc file\n");
2686        snd_iprintf(buffer,
2687                "adapter ID=%4X\n_index=%d\n"
2688                "num_outstreams=%d\n_num_instreams=%d\n",
2689                asihpi->type, asihpi->adapter_index,
2690                asihpi->num_outstreams, asihpi->num_instreams);
2691
2692        version = asihpi->version;
2693        snd_iprintf(buffer,
2694                "serial#=%d\n_hw version %c%d\nDSP code version %03d\n",
2695                asihpi->serial_number, ((version >> 3) & 0xf) + 'A',
2696                version & 0x7,
2697                ((version >> 13) * 100) + ((version >> 7) & 0x3f));
2698
2699        err = hpi_mixer_get_control(asihpi->h_mixer,
2700                                  HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
2701                                  HPI_CONTROL_SAMPLECLOCK, &h_control);
2702
2703        if (!err) {
2704                err = hpi_sample_clock_get_sample_rate(
2705                                        h_control, &rate);
2706                err += hpi_sample_clock_get_source(h_control, &source);
2707
2708                if (!err)
2709                        snd_iprintf(buffer, "sample_clock=%d_hz, source %s\n",
2710                        rate, sampleclock_sources[source]);
2711        }
2712
2713}
2714
2715
2716static void __devinit snd_asihpi_proc_init(struct snd_card_asihpi *asihpi)
2717{
2718        struct snd_info_entry *entry;
2719
2720        if (!snd_card_proc_new(asihpi->card, "info", &entry))
2721                snd_info_set_text_ops(entry, asihpi, snd_asihpi_proc_read);
2722}
2723
2724/*------------------------------------------------------------
2725   HWDEP
2726 ------------------------------------------------------------*/
2727
2728static int snd_asihpi_hpi_open(struct snd_hwdep *hw, struct file *file)
2729{
2730        if (enable_hpi_hwdep)
2731                return 0;
2732        else
2733                return -ENODEV;
2734
2735}
2736
2737static int snd_asihpi_hpi_release(struct snd_hwdep *hw, struct file *file)
2738{
2739        if (enable_hpi_hwdep)
2740                return asihpi_hpi_release(file);
2741        else
2742                return -ENODEV;
2743}
2744
2745static int snd_asihpi_hpi_ioctl(struct snd_hwdep *hw, struct file *file,
2746                                unsigned int cmd, unsigned long arg)
2747{
2748        if (enable_hpi_hwdep)
2749                return asihpi_hpi_ioctl(file, cmd, arg);
2750        else
2751                return -ENODEV;
2752}
2753
2754
2755/* results in /dev/snd/hwC#D0 file for each card with index #
2756   also /proc/asound/hwdep will contain '#-00: asihpi (HPI) for each card'
2757*/
2758static int __devinit snd_asihpi_hpi_new(struct snd_card_asihpi *asihpi,
2759        int device, struct snd_hwdep **rhwdep)
2760{
2761        struct snd_hwdep *hw;
2762        int err;
2763
2764        if (rhwdep)
2765                *rhwdep = NULL;
2766        err = snd_hwdep_new(asihpi->card, "HPI", device, &hw);
2767        if (err < 0)
2768                return err;
2769        strcpy(hw->name, "asihpi (HPI)");
2770        hw->iface = SNDRV_HWDEP_IFACE_LAST;
2771        hw->ops.open = snd_asihpi_hpi_open;
2772        hw->ops.ioctl = snd_asihpi_hpi_ioctl;
2773        hw->ops.release = snd_asihpi_hpi_release;
2774        hw->private_data = asihpi;
2775        if (rhwdep)
2776                *rhwdep = hw;
2777        return 0;
2778}
2779
2780/*------------------------------------------------------------
2781   CARD
2782 ------------------------------------------------------------*/
2783static int __devinit snd_asihpi_probe(struct pci_dev *pci_dev,
2784                                       const struct pci_device_id *pci_id)
2785{
2786        int err;
2787
2788        u16 version;
2789        int pcm_substreams;
2790
2791        struct hpi_adapter *hpi_card;
2792        struct snd_card *card;
2793        struct snd_card_asihpi *asihpi;
2794
2795        u32 h_control;
2796        u32 h_stream;
2797
2798        static int dev;
2799        if (dev >= SNDRV_CARDS)
2800                return -ENODEV;
2801
2802        /* Should this be enable[hpi_card->index] ? */
2803        if (!enable[dev]) {
2804                dev++;
2805                return -ENOENT;
2806        }
2807
2808        err = asihpi_adapter_probe(pci_dev, pci_id);
2809        if (err < 0)
2810                return err;
2811
2812        hpi_card = pci_get_drvdata(pci_dev);
2813        /* first try to give the card the same index as its hardware index */
2814        err = snd_card_create(hpi_card->index,
2815                              id[hpi_card->index], THIS_MODULE,
2816                              sizeof(struct snd_card_asihpi),
2817                              &card);
2818        if (err < 0) {
2819                /* if that fails, try the default index==next available */
2820                err =
2821                    snd_card_create(index[dev], id[dev],
2822                                    THIS_MODULE,
2823                                    sizeof(struct snd_card_asihpi),
2824                                    &card);
2825                if (err < 0)
2826                        return err;
2827                snd_printk(KERN_WARNING
2828                        "**** WARNING **** Adapter index %d->ALSA index %d\n",
2829                        hpi_card->index, card->number);
2830        }
2831
2832        snd_card_set_dev(card, &pci_dev->dev);
2833
2834        asihpi = (struct snd_card_asihpi *) card->private_data;
2835        asihpi->card = card;
2836        asihpi->pci = pci_dev;
2837        asihpi->adapter_index = hpi_card->index;
2838        hpi_handle_error(hpi_adapter_get_info(
2839                                 asihpi->adapter_index,
2840                                 &asihpi->num_outstreams,
2841                                 &asihpi->num_instreams,
2842                                 &asihpi->version,
2843                                 &asihpi->serial_number, &asihpi->type));
2844
2845        version = asihpi->version;
2846        snd_printk(KERN_INFO "adapter ID=%4X index=%d num_outstreams=%d "
2847                        "num_instreams=%d S/N=%d\n"
2848                        "Hw Version %c%d DSP code version %03d\n",
2849                        asihpi->type, asihpi->adapter_index,
2850                        asihpi->num_outstreams,
2851                        asihpi->num_instreams, asihpi->serial_number,
2852                        ((version >> 3) & 0xf) + 'A',
2853                        version & 0x7,
2854                        ((version >> 13) * 100) + ((version >> 7) & 0x3f));
2855
2856        pcm_substreams = asihpi->num_outstreams;
2857        if (pcm_substreams < asihpi->num_instreams)
2858                pcm_substreams = asihpi->num_instreams;
2859
2860        err = hpi_adapter_get_property(asihpi->adapter_index,
2861                HPI_ADAPTER_PROPERTY_CAPS1,
2862                NULL, &asihpi->support_grouping);
2863        if (err)
2864                asihpi->support_grouping = 0;
2865
2866        err = hpi_adapter_get_property(asihpi->adapter_index,
2867                HPI_ADAPTER_PROPERTY_CAPS2,
2868                &asihpi->support_mrx, NULL);
2869        if (err)
2870                asihpi->support_mrx = 0;
2871
2872        err = hpi_adapter_get_property(asihpi->adapter_index,
2873                HPI_ADAPTER_PROPERTY_INTERVAL,
2874                NULL, &asihpi->update_interval_frames);
2875        if (err)
2876                asihpi->update_interval_frames = 512;
2877
2878        if (!asihpi->support_mmap)
2879                asihpi->update_interval_frames *= 2;
2880
2881        hpi_handle_error(hpi_instream_open(asihpi->adapter_index,
2882                             0, &h_stream));
2883
2884        err = hpi_instream_host_buffer_free(h_stream);
2885        asihpi->support_mmap = (!err);
2886
2887        hpi_handle_error(hpi_instream_close(h_stream));
2888
2889        err = hpi_adapter_get_property(asihpi->adapter_index,
2890                HPI_ADAPTER_PROPERTY_CURCHANNELS,
2891                &asihpi->in_max_chans, &asihpi->out_max_chans);
2892        if (err) {
2893                asihpi->in_max_chans = 2;
2894                asihpi->out_max_chans = 2;
2895        }
2896
2897        snd_printk(KERN_INFO "supports mmap:%d grouping:%d mrx:%d\n",
2898                        asihpi->support_mmap,
2899                        asihpi->support_grouping,
2900                        asihpi->support_mrx
2901              );
2902
2903        err = snd_card_asihpi_pcm_new(asihpi, 0, pcm_substreams);
2904        if (err < 0) {
2905                snd_printk(KERN_ERR "pcm_new failed\n");
2906                goto __nodev;
2907        }
2908        err = snd_card_asihpi_mixer_new(asihpi);
2909        if (err < 0) {
2910                snd_printk(KERN_ERR "mixer_new failed\n");
2911                goto __nodev;
2912        }
2913
2914        err = hpi_mixer_get_control(asihpi->h_mixer,
2915                                  HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
2916                                  HPI_CONTROL_SAMPLECLOCK, &h_control);
2917
2918        if (!err)
2919                err = hpi_sample_clock_set_local_rate(
2920                        h_control, adapter_fs);
2921
2922        snd_asihpi_proc_init(asihpi);
2923
2924        /* always create, can be enabled or disabled dynamically
2925            by enable_hwdep  module param*/
2926        snd_asihpi_hpi_new(asihpi, 0, NULL);
2927
2928        if (asihpi->support_mmap)
2929                strcpy(card->driver, "ASIHPI-MMAP");
2930        else
2931                strcpy(card->driver, "ASIHPI");
2932
2933        sprintf(card->shortname, "AudioScience ASI%4X", asihpi->type);
2934        sprintf(card->longname, "%s %i",
2935                        card->shortname, asihpi->adapter_index);
2936        err = snd_card_register(card);
2937
2938        if (!err) {
2939                hpi_card->snd_card_asihpi = 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
2950static void __devexit snd_asihpi_remove(struct pci_dev *pci_dev)
2951{
2952        struct hpi_adapter *hpi_card = pci_get_drvdata(pci_dev);
2953
2954        snd_card_free(hpi_card->snd_card_asihpi);
2955        hpi_card->snd_card_asihpi = NULL;
2956        asihpi_adapter_remove(pci_dev);
2957}
2958
2959static DEFINE_PCI_DEVICE_TABLE(asihpi_pci_tbl) = {
2960        {HPI_PCI_VENDOR_ID_TI, HPI_PCI_DEV_ID_DSP6205,
2961                HPI_PCI_VENDOR_ID_AUDIOSCIENCE, PCI_ANY_ID, 0, 0,
2962                (kernel_ulong_t)HPI_6205},
2963        {HPI_PCI_VENDOR_ID_TI, HPI_PCI_DEV_ID_PCI2040,
2964                HPI_PCI_VENDOR_ID_AUDIOSCIENCE, PCI_ANY_ID, 0, 0,
2965                (kernel_ulong_t)HPI_6000},
2966        {0,}
2967};
2968MODULE_DEVICE_TABLE(pci, asihpi_pci_tbl);
2969
2970static struct pci_driver driver = {
2971        .name = "asihpi",
2972        .id_table = asihpi_pci_tbl,
2973        .probe = snd_asihpi_probe,
2974        .remove = __devexit_p(snd_asihpi_remove),
2975#ifdef CONFIG_PM
2976/*      .suspend = snd_asihpi_suspend,
2977        .resume = snd_asihpi_resume, */
2978#endif
2979};
2980
2981static int __init snd_asihpi_init(void)
2982{
2983        asihpi_init();
2984        return pci_register_driver(&driver);
2985}
2986
2987static void __exit snd_asihpi_exit(void)
2988{
2989
2990        pci_unregister_driver(&driver);
2991        asihpi_exit();
2992}
2993
2994module_init(snd_asihpi_init)
2995module_exit(snd_asihpi_exit)
2996
2997