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 "hpi_version.h"
  27#include "hpimsginit.h"
  28#include "hpioctl.h"
  29#include "hpicmn.h"
  30
  31
  32#include <linux/pci.h>
  33#include <linux/init.h>
  34#include <linux/jiffies.h>
  35#include <linux/slab.h>
  36#include <linux/time.h>
  37#include <linux/wait.h>
  38#include <linux/module.h>
  39#include <sound/core.h>
  40#include <sound/control.h>
  41#include <sound/pcm.h>
  42#include <sound/pcm_params.h>
  43#include <sound/info.h>
  44#include <sound/initval.h>
  45#include <sound/tlv.h>
  46#include <sound/hwdep.h>
  47
  48MODULE_LICENSE("GPL");
  49MODULE_AUTHOR("AudioScience inc. <support@audioscience.com>");
  50MODULE_DESCRIPTION("AudioScience ALSA ASI5000 ASI6000 ASI87xx ASI89xx "
  51                        HPI_VER_STRING);
  52
  53#if defined CONFIG_SND_DEBUG_VERBOSE
  54/**
  55 * snd_printddd - very verbose debug printk
  56 * @format: format string
  57 *
  58 * Works like snd_printk() for debugging purposes.
  59 * Ignored when CONFIG_SND_DEBUG_VERBOSE is not set.
  60 * Must set snd module debug parameter to 3 to enable at runtime.
  61 */
  62#define snd_printddd(format, args...) \
  63        __snd_printk(3, __FILE__, __LINE__, format, ##args)
  64#else
  65#define snd_printddd(format, args...) do { } while (0)
  66#endif
  67
  68static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* index 0-MAX */
  69static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  70static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
  71static bool enable_hpi_hwdep = 1;
  72
  73module_param_array(index, int, NULL, S_IRUGO);
  74MODULE_PARM_DESC(index, "ALSA index value for AudioScience soundcard.");
  75
  76module_param_array(id, charp, NULL, S_IRUGO);
  77MODULE_PARM_DESC(id, "ALSA ID string for AudioScience soundcard.");
  78
  79module_param_array(enable, bool, NULL, S_IRUGO);
  80MODULE_PARM_DESC(enable, "ALSA enable AudioScience soundcard.");
  81
  82module_param(enable_hpi_hwdep, bool, S_IRUGO|S_IWUSR);
  83MODULE_PARM_DESC(enable_hpi_hwdep,
  84                "ALSA enable HPI hwdep for AudioScience soundcard ");
  85
  86/* identify driver */
  87#ifdef KERNEL_ALSA_BUILD
  88static char *build_info = "Built using headers from kernel source";
  89module_param(build_info, charp, S_IRUGO);
  90MODULE_PARM_DESC(build_info, "built using headers from kernel source");
  91#else
  92static char *build_info = "Built within ALSA source";
  93module_param(build_info, charp, S_IRUGO);
  94MODULE_PARM_DESC(build_info, "built within ALSA source");
  95#endif
  96
  97/* set to 1 to dump every control from adapter to log */
  98static const int mixer_dump;
  99
 100#define DEFAULT_SAMPLERATE 44100
 101static int adapter_fs = DEFAULT_SAMPLERATE;
 102
 103/* defaults */
 104#define PERIODS_MIN 2
 105#define PERIOD_BYTES_MIN  2048
 106#define BUFFER_BYTES_MAX (512 * 1024)
 107
 108#define MAX_CLOCKSOURCES (HPI_SAMPLECLOCK_SOURCE_LAST + 1 + 7)
 109
 110struct clk_source {
 111        int source;
 112        int index;
 113        char *name;
 114};
 115
 116struct clk_cache {
 117        int count;
 118        int has_local;
 119        struct clk_source s[MAX_CLOCKSOURCES];
 120};
 121
 122/* Per card data */
 123struct snd_card_asihpi {
 124        struct snd_card *card;
 125        struct pci_dev *pci;
 126        struct hpi_adapter *hpi;
 127
 128        u32 h_mixer;
 129        struct clk_cache cc;
 130
 131        u16 can_dma;
 132        u16 support_grouping;
 133        u16 support_mrx;
 134        u16 update_interval_frames;
 135        u16 in_max_chans;
 136        u16 out_max_chans;
 137        u16 in_min_chans;
 138        u16 out_min_chans;
 139};
 140
 141/* Per stream data */
 142struct snd_card_asihpi_pcm {
 143        struct timer_list timer;
 144        unsigned int respawn_timer;
 145        unsigned int hpi_buffer_attached;
 146        unsigned int buffer_bytes;
 147        unsigned int period_bytes;
 148        unsigned int bytes_per_sec;
 149        unsigned int pcm_buf_host_rw_ofs; /* Host R/W pos */
 150        unsigned int pcm_buf_dma_ofs;   /* DMA R/W offset in buffer */
 151        unsigned int pcm_buf_elapsed_dma_ofs;   /* DMA R/W offset in buffer */
 152        unsigned int drained_count;
 153        struct snd_pcm_substream *substream;
 154        u32 h_stream;
 155        struct hpi_format format;
 156};
 157
 158/* universal stream verbs work with out or in stream handles */
 159
 160/* Functions to allow driver to give a buffer to HPI for busmastering */
 161
 162static u16 hpi_stream_host_buffer_attach(
 163        u32 h_stream,   /* handle to outstream. */
 164        u32 size_in_bytes, /* size in bytes of bus mastering buffer */
 165        u32 pci_address
 166)
 167{
 168        struct hpi_message hm;
 169        struct hpi_response hr;
 170        unsigned int obj = hpi_handle_object(h_stream);
 171
 172        if (!h_stream)
 173                return HPI_ERROR_INVALID_OBJ;
 174        hpi_init_message_response(&hm, &hr, obj,
 175                        obj == HPI_OBJ_OSTREAM ?
 176                                HPI_OSTREAM_HOSTBUFFER_ALLOC :
 177                                HPI_ISTREAM_HOSTBUFFER_ALLOC);
 178
 179        hpi_handle_to_indexes(h_stream, &hm.adapter_index,
 180                                &hm.obj_index);
 181
 182        hm.u.d.u.buffer.buffer_size = size_in_bytes;
 183        hm.u.d.u.buffer.pci_address = pci_address;
 184        hm.u.d.u.buffer.command = HPI_BUFFER_CMD_INTERNAL_GRANTADAPTER;
 185        hpi_send_recv(&hm, &hr);
 186        return hr.error;
 187}
 188
 189static u16 hpi_stream_host_buffer_detach(u32  h_stream)
 190{
 191        struct hpi_message hm;
 192        struct hpi_response hr;
 193        unsigned int obj = hpi_handle_object(h_stream);
 194
 195        if (!h_stream)
 196                return HPI_ERROR_INVALID_OBJ;
 197
 198        hpi_init_message_response(&hm, &hr,  obj,
 199                        obj == HPI_OBJ_OSTREAM ?
 200                                HPI_OSTREAM_HOSTBUFFER_FREE :
 201                                HPI_ISTREAM_HOSTBUFFER_FREE);
 202
 203        hpi_handle_to_indexes(h_stream, &hm.adapter_index,
 204                                &hm.obj_index);
 205        hm.u.d.u.buffer.command = HPI_BUFFER_CMD_INTERNAL_REVOKEADAPTER;
 206        hpi_send_recv(&hm, &hr);
 207        return hr.error;
 208}
 209
 210static inline u16 hpi_stream_start(u32 h_stream)
 211{
 212        if (hpi_handle_object(h_stream) ==  HPI_OBJ_OSTREAM)
 213                return hpi_outstream_start(h_stream);
 214        else
 215                return hpi_instream_start(h_stream);
 216}
 217
 218static inline u16 hpi_stream_stop(u32 h_stream)
 219{
 220        if (hpi_handle_object(h_stream) ==  HPI_OBJ_OSTREAM)
 221                return hpi_outstream_stop(h_stream);
 222        else
 223                return hpi_instream_stop(h_stream);
 224}
 225
 226static inline u16 hpi_stream_get_info_ex(
 227    u32 h_stream,
 228    u16        *pw_state,
 229    u32        *pbuffer_size,
 230    u32        *pdata_in_buffer,
 231    u32        *psample_count,
 232    u32        *pauxiliary_data
 233)
 234{
 235        u16 e;
 236        if (hpi_handle_object(h_stream)  ==  HPI_OBJ_OSTREAM)
 237                e = hpi_outstream_get_info_ex(h_stream, pw_state,
 238                                        pbuffer_size, pdata_in_buffer,
 239                                        psample_count, pauxiliary_data);
 240        else
 241                e = hpi_instream_get_info_ex(h_stream, pw_state,
 242                                        pbuffer_size, pdata_in_buffer,
 243                                        psample_count, pauxiliary_data);
 244        return e;
 245}
 246
 247static inline u16 hpi_stream_group_add(
 248                                        u32 h_master,
 249                                        u32 h_stream)
 250{
 251        if (hpi_handle_object(h_master) ==  HPI_OBJ_OSTREAM)
 252                return hpi_outstream_group_add(h_master, h_stream);
 253        else
 254                return hpi_instream_group_add(h_master, h_stream);
 255}
 256
 257static inline u16 hpi_stream_group_reset(u32 h_stream)
 258{
 259        if (hpi_handle_object(h_stream) ==  HPI_OBJ_OSTREAM)
 260                return hpi_outstream_group_reset(h_stream);
 261        else
 262                return hpi_instream_group_reset(h_stream);
 263}
 264
 265static inline u16 hpi_stream_group_get_map(
 266                                u32 h_stream, u32 *mo, u32 *mi)
 267{
 268        if (hpi_handle_object(h_stream) ==  HPI_OBJ_OSTREAM)
 269                return hpi_outstream_group_get_map(h_stream, mo, mi);
 270        else
 271                return hpi_instream_group_get_map(h_stream, mo, mi);
 272}
 273
 274static u16 handle_error(u16 err, int line, char *filename)
 275{
 276        if (err)
 277                printk(KERN_WARNING
 278                        "in file %s, line %d: HPI error %d\n",
 279                        filename, line, err);
 280        return err;
 281}
 282
 283#define hpi_handle_error(x)  handle_error(x, __LINE__, __FILE__)
 284
 285/***************************** GENERAL PCM ****************/
 286
 287static void print_hwparams(struct snd_pcm_substream *substream,
 288                                struct snd_pcm_hw_params *p)
 289{
 290        char name[16];
 291        snd_pcm_debug_name(substream, name, sizeof(name));
 292        snd_printd("%s HWPARAMS\n", name);
 293        snd_printd(" samplerate %d Hz\n", params_rate(p));
 294        snd_printd(" channels %d\n", params_channels(p));
 295        snd_printd(" format %d\n", params_format(p));
 296        snd_printd(" subformat %d\n", params_subformat(p));
 297        snd_printd(" buffer %d B\n", params_buffer_bytes(p));
 298        snd_printd(" period %d B\n", params_period_bytes(p));
 299        snd_printd(" access %d\n", params_access(p));
 300        snd_printd(" period_size %d\n", params_period_size(p));
 301        snd_printd(" periods %d\n", params_periods(p));
 302        snd_printd(" buffer_size %d\n", params_buffer_size(p));
 303        snd_printd(" %d B/s\n", params_rate(p) *
 304                params_channels(p) *
 305                snd_pcm_format_width(params_format(p)) / 8);
 306
 307}
 308
 309static snd_pcm_format_t hpi_to_alsa_formats[] = {
 310        -1,                     /* INVALID */
 311        SNDRV_PCM_FORMAT_U8,    /* HPI_FORMAT_PCM8_UNSIGNED        1 */
 312        SNDRV_PCM_FORMAT_S16,   /* HPI_FORMAT_PCM16_SIGNED         2 */
 313        -1,                     /* HPI_FORMAT_MPEG_L1              3 */
 314        SNDRV_PCM_FORMAT_MPEG,  /* HPI_FORMAT_MPEG_L2              4 */
 315        SNDRV_PCM_FORMAT_MPEG,  /* HPI_FORMAT_MPEG_L3              5 */
 316        -1,                     /* HPI_FORMAT_DOLBY_AC2            6 */
 317        -1,                     /* HPI_FORMAT_DOLBY_AC3            7 */
 318        SNDRV_PCM_FORMAT_S16_BE,/* HPI_FORMAT_PCM16_BIGENDIAN      8 */
 319        -1,                     /* HPI_FORMAT_AA_TAGIT1_HITS       9 */
 320        -1,                     /* HPI_FORMAT_AA_TAGIT1_INSERTS   10 */
 321        SNDRV_PCM_FORMAT_S32,   /* HPI_FORMAT_PCM32_SIGNED        11 */
 322        -1,                     /* HPI_FORMAT_RAW_BITSTREAM       12 */
 323        -1,                     /* HPI_FORMAT_AA_TAGIT1_HITS_EX1  13 */
 324        SNDRV_PCM_FORMAT_FLOAT, /* HPI_FORMAT_PCM32_FLOAT         14 */
 325#if 1
 326        /* ALSA can't handle 3 byte sample size together with power-of-2
 327         *  constraint on buffer_bytes, so disable this format
 328         */
 329        -1
 330#else
 331        /* SNDRV_PCM_FORMAT_S24_3LE */ /* HPI_FORMAT_PCM24_SIGNED 15 */
 332#endif
 333};
 334
 335
 336static int snd_card_asihpi_format_alsa2hpi(snd_pcm_format_t alsa_format,
 337                                           u16 *hpi_format)
 338{
 339        u16 format;
 340
 341        for (format = HPI_FORMAT_PCM8_UNSIGNED;
 342             format <= HPI_FORMAT_PCM24_SIGNED; format++) {
 343                if (hpi_to_alsa_formats[format] == alsa_format) {
 344                        *hpi_format = format;
 345                        return 0;
 346                }
 347        }
 348
 349        snd_printd(KERN_WARNING "failed match for alsa format %d\n",
 350                   alsa_format);
 351        *hpi_format = 0;
 352        return -EINVAL;
 353}
 354
 355static void snd_card_asihpi_pcm_samplerates(struct snd_card_asihpi *asihpi,
 356                                         struct snd_pcm_hardware *pcmhw)
 357{
 358        u16 err;
 359        u32 h_control;
 360        u32 sample_rate;
 361        int idx;
 362        unsigned int rate_min = 200000;
 363        unsigned int rate_max = 0;
 364        unsigned int rates = 0;
 365
 366        if (asihpi->support_mrx) {
 367                rates |= SNDRV_PCM_RATE_CONTINUOUS;
 368                rates |= SNDRV_PCM_RATE_8000_96000;
 369                rate_min = 8000;
 370                rate_max = 100000;
 371        } else {
 372                /* on cards without SRC,
 373                   valid rates are determined by sampleclock */
 374                err = hpi_mixer_get_control(asihpi->h_mixer,
 375                                          HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
 376                                          HPI_CONTROL_SAMPLECLOCK, &h_control);
 377                if (err) {
 378                        snd_printk(KERN_ERR
 379                                "No local sampleclock, err %d\n", err);
 380                }
 381
 382                for (idx = -1; idx < 100; idx++) {
 383                        if (idx == -1) {
 384                                if (hpi_sample_clock_get_sample_rate(h_control,
 385                                                                &sample_rate))
 386                                        continue;
 387                        } else if (hpi_sample_clock_query_local_rate(h_control,
 388                                                        idx, &sample_rate)) {
 389                                break;
 390                        }
 391
 392                        rate_min = min(rate_min, sample_rate);
 393                        rate_max = max(rate_max, sample_rate);
 394
 395                        switch (sample_rate) {
 396                        case 5512:
 397                                rates |= SNDRV_PCM_RATE_5512;
 398                                break;
 399                        case 8000:
 400                                rates |= SNDRV_PCM_RATE_8000;
 401                                break;
 402                        case 11025:
 403                                rates |= SNDRV_PCM_RATE_11025;
 404                                break;
 405                        case 16000:
 406                                rates |= SNDRV_PCM_RATE_16000;
 407                                break;
 408                        case 22050:
 409                                rates |= SNDRV_PCM_RATE_22050;
 410                                break;
 411                        case 32000:
 412                                rates |= SNDRV_PCM_RATE_32000;
 413                                break;
 414                        case 44100:
 415                                rates |= SNDRV_PCM_RATE_44100;
 416                                break;
 417                        case 48000:
 418                                rates |= SNDRV_PCM_RATE_48000;
 419                                break;
 420                        case 64000:
 421                                rates |= SNDRV_PCM_RATE_64000;
 422                                break;
 423                        case 88200:
 424                                rates |= SNDRV_PCM_RATE_88200;
 425                                break;
 426                        case 96000:
 427                                rates |= SNDRV_PCM_RATE_96000;
 428                                break;
 429                        case 176400:
 430                                rates |= SNDRV_PCM_RATE_176400;
 431                                break;
 432                        case 192000:
 433                                rates |= SNDRV_PCM_RATE_192000;
 434                                break;
 435                        default: /* some other rate */
 436                                rates |= SNDRV_PCM_RATE_KNOT;
 437                        }
 438                }
 439        }
 440
 441        pcmhw->rates = rates;
 442        pcmhw->rate_min = rate_min;
 443        pcmhw->rate_max = rate_max;
 444}
 445
 446static int snd_card_asihpi_pcm_hw_params(struct snd_pcm_substream *substream,
 447                                         struct snd_pcm_hw_params *params)
 448{
 449        struct snd_pcm_runtime *runtime = substream->runtime;
 450        struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
 451        struct snd_card_asihpi *card = snd_pcm_substream_chip(substream);
 452        int err;
 453        u16 format;
 454        int width;
 455        unsigned int bytes_per_sec;
 456
 457        print_hwparams(substream, params);
 458        err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
 459        if (err < 0)
 460                return err;
 461        err = snd_card_asihpi_format_alsa2hpi(params_format(params), &format);
 462        if (err)
 463                return err;
 464
 465        hpi_handle_error(hpi_format_create(&dpcm->format,
 466                        params_channels(params),
 467                        format, params_rate(params), 0, 0));
 468
 469        if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
 470                if (hpi_instream_reset(dpcm->h_stream) != 0)
 471                        return -EINVAL;
 472
 473                if (hpi_instream_set_format(
 474                        dpcm->h_stream, &dpcm->format) != 0)
 475                        return -EINVAL;
 476        }
 477
 478        dpcm->hpi_buffer_attached = 0;
 479        if (card->can_dma) {
 480                err = hpi_stream_host_buffer_attach(dpcm->h_stream,
 481                        params_buffer_bytes(params),  runtime->dma_addr);
 482                if (err == 0) {
 483                        snd_printdd(
 484                                "stream_host_buffer_attach succeeded %u %lu\n",
 485                                params_buffer_bytes(params),
 486                                (unsigned long)runtime->dma_addr);
 487                } else {
 488                        snd_printd("stream_host_buffer_attach error %d\n",
 489                                        err);
 490                        return -ENOMEM;
 491                }
 492
 493                err = hpi_stream_get_info_ex(dpcm->h_stream, NULL,
 494                                                &dpcm->hpi_buffer_attached,
 495                                                NULL, NULL, NULL);
 496
 497                snd_printdd("stream_host_buffer_attach status 0x%x\n",
 498                                dpcm->hpi_buffer_attached);
 499
 500        }
 501        bytes_per_sec = params_rate(params) * params_channels(params);
 502        width = snd_pcm_format_width(params_format(params));
 503        bytes_per_sec *= width;
 504        bytes_per_sec /= 8;
 505        if (width < 0 || bytes_per_sec == 0)
 506                return -EINVAL;
 507
 508        dpcm->bytes_per_sec = bytes_per_sec;
 509        dpcm->buffer_bytes = params_buffer_bytes(params);
 510        dpcm->period_bytes = params_period_bytes(params);
 511
 512        return 0;
 513}
 514
 515static int
 516snd_card_asihpi_hw_free(struct snd_pcm_substream *substream)
 517{
 518        struct snd_pcm_runtime *runtime = substream->runtime;
 519        struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
 520        if (dpcm->hpi_buffer_attached)
 521                hpi_stream_host_buffer_detach(dpcm->h_stream);
 522
 523        snd_pcm_lib_free_pages(substream);
 524        return 0;
 525}
 526
 527static void snd_card_asihpi_runtime_free(struct snd_pcm_runtime *runtime)
 528{
 529        struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
 530        kfree(dpcm);
 531}
 532
 533static void snd_card_asihpi_pcm_timer_start(struct snd_pcm_substream *
 534                                            substream)
 535{
 536        struct snd_pcm_runtime *runtime = substream->runtime;
 537        struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
 538        int expiry;
 539
 540        expiry = HZ / 200;
 541        /*? (dpcm->period_bytes * HZ / dpcm->bytes_per_sec); */
 542        expiry = max(expiry, 1); /* don't let it be zero! */
 543        dpcm->timer.expires = jiffies + expiry;
 544        dpcm->respawn_timer = 1;
 545        add_timer(&dpcm->timer);
 546}
 547
 548static void snd_card_asihpi_pcm_timer_stop(struct snd_pcm_substream *substream)
 549{
 550        struct snd_pcm_runtime *runtime = substream->runtime;
 551        struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
 552
 553        dpcm->respawn_timer = 0;
 554        del_timer(&dpcm->timer);
 555}
 556
 557static int snd_card_asihpi_trigger(struct snd_pcm_substream *substream,
 558                                           int cmd)
 559{
 560        struct snd_card_asihpi_pcm *dpcm = substream->runtime->private_data;
 561        struct snd_card_asihpi *card = snd_pcm_substream_chip(substream);
 562        struct snd_pcm_substream *s;
 563        u16 e;
 564        char name[16];
 565
 566        snd_pcm_debug_name(substream, name, sizeof(name));
 567        snd_printdd("%s trigger\n", name);
 568
 569        switch (cmd) {
 570        case SNDRV_PCM_TRIGGER_START:
 571                snd_pcm_group_for_each_entry(s, substream) {
 572                        struct snd_pcm_runtime *runtime = s->runtime;
 573                        struct snd_card_asihpi_pcm *ds = runtime->private_data;
 574
 575                        if (snd_pcm_substream_chip(s) != card)
 576                                continue;
 577
 578                        /* don't link Cap and Play */
 579                        if (substream->stream != s->stream)
 580                                continue;
 581
 582                        ds->drained_count = 0;
 583                        if (s->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 584                                /* How do I know how much valid data is present
 585                                * in buffer? Must be at least one period!
 586                                * Guessing 2 periods, but if
 587                                * buffer is bigger it may contain even more
 588                                * data??
 589                                */
 590                                unsigned int preload = ds->period_bytes * 1;
 591                                snd_printddd("%d preload x%x\n", s->number, preload);
 592                                hpi_handle_error(hpi_outstream_write_buf(
 593                                                ds->h_stream,
 594                                                &runtime->dma_area[0],
 595                                                preload,
 596                                                &ds->format));
 597                                ds->pcm_buf_host_rw_ofs = preload;
 598                        }
 599
 600                        if (card->support_grouping) {
 601                                snd_printdd("%d group\n", s->number);
 602                                e = hpi_stream_group_add(
 603                                        dpcm->h_stream,
 604                                        ds->h_stream);
 605                                if (!e) {
 606                                        snd_pcm_trigger_done(s, substream);
 607                                } else {
 608                                        hpi_handle_error(e);
 609                                        break;
 610                                }
 611                        } else
 612                                break;
 613                }
 614                snd_printdd("start\n");
 615                /* start the master stream */
 616                snd_card_asihpi_pcm_timer_start(substream);
 617                if ((substream->stream == SNDRV_PCM_STREAM_CAPTURE) ||
 618                        !card->can_dma)
 619                        hpi_handle_error(hpi_stream_start(dpcm->h_stream));
 620                break;
 621
 622        case SNDRV_PCM_TRIGGER_STOP:
 623                snd_card_asihpi_pcm_timer_stop(substream);
 624                snd_pcm_group_for_each_entry(s, substream) {
 625                        if (snd_pcm_substream_chip(s) != card)
 626                                continue;
 627                        /* don't link Cap and Play */
 628                        if (substream->stream != s->stream)
 629                                continue;
 630
 631                        /*? workaround linked streams don't
 632                        transition to SETUP 20070706*/
 633                        s->runtime->status->state = SNDRV_PCM_STATE_SETUP;
 634
 635                        if (card->support_grouping) {
 636                                snd_printdd("%d group\n", s->number);
 637                                snd_pcm_trigger_done(s, substream);
 638                        } else
 639                                break;
 640                }
 641                snd_printdd("stop\n");
 642
 643                /* _prepare and _hwparams reset the stream */
 644                hpi_handle_error(hpi_stream_stop(dpcm->h_stream));
 645                if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
 646                        hpi_handle_error(
 647                                hpi_outstream_reset(dpcm->h_stream));
 648
 649                if (card->support_grouping)
 650                        hpi_handle_error(hpi_stream_group_reset(dpcm->h_stream));
 651                break;
 652
 653        case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 654                snd_printdd("pause release\n");
 655                hpi_handle_error(hpi_stream_start(dpcm->h_stream));
 656                snd_card_asihpi_pcm_timer_start(substream);
 657                break;
 658        case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 659                snd_printdd("pause\n");
 660                snd_card_asihpi_pcm_timer_stop(substream);
 661                hpi_handle_error(hpi_stream_stop(dpcm->h_stream));
 662                break;
 663        default:
 664                snd_printd(KERN_ERR "\tINVALID\n");
 665                return -EINVAL;
 666        }
 667
 668        return 0;
 669}
 670
 671/*algorithm outline
 672 Without linking degenerates to getting single stream pos etc
 673 Without mmap 2nd loop degenerates to snd_pcm_period_elapsed
 674*/
 675/*
 676pcm_buf_dma_ofs=get_buf_pos(s);
 677for_each_linked_stream(s) {
 678        pcm_buf_dma_ofs=get_buf_pos(s);
 679        min_buf_pos = modulo_min(min_buf_pos, pcm_buf_dma_ofs, buffer_bytes)
 680        new_data = min(new_data, calc_new_data(pcm_buf_dma_ofs,irq_pos)
 681}
 682timer.expires = jiffies + predict_next_period_ready(min_buf_pos);
 683for_each_linked_stream(s) {
 684        s->pcm_buf_dma_ofs = min_buf_pos;
 685        if (new_data > period_bytes) {
 686                if (mmap) {
 687                        irq_pos = (irq_pos + period_bytes) % buffer_bytes;
 688                        if (playback) {
 689                                write(period_bytes);
 690                        } else {
 691                                read(period_bytes);
 692                        }
 693                }
 694                snd_pcm_period_elapsed(s);
 695        }
 696}
 697*/
 698
 699/** Minimum of 2 modulo values.  Works correctly when the difference between
 700* the values is less than half the modulus
 701*/
 702static inline unsigned int modulo_min(unsigned int a, unsigned int b,
 703                                        unsigned long int modulus)
 704{
 705        unsigned int result;
 706        if (((a-b) % modulus) < (modulus/2))
 707                result = b;
 708        else
 709                result = a;
 710
 711        return result;
 712}
 713
 714/** Timer function, equivalent to interrupt service routine for cards
 715*/
 716static void snd_card_asihpi_timer_function(unsigned long data)
 717{
 718        struct snd_card_asihpi_pcm *dpcm = (struct snd_card_asihpi_pcm *)data;
 719        struct snd_pcm_substream *substream = dpcm->substream;
 720        struct snd_card_asihpi *card = snd_pcm_substream_chip(substream);
 721        struct snd_pcm_runtime *runtime;
 722        struct snd_pcm_substream *s;
 723        unsigned int newdata = 0;
 724        unsigned int pcm_buf_dma_ofs, min_buf_pos = 0;
 725        unsigned int remdata, xfercount, next_jiffies;
 726        int first = 1;
 727        int loops = 0;
 728        u16 state;
 729        u32 buffer_size, bytes_avail, samples_played, on_card_bytes;
 730        char name[16];
 731
 732        snd_pcm_debug_name(substream, name, sizeof(name));
 733
 734        snd_printdd("%s snd_card_asihpi_timer_function\n", name);
 735
 736        /* find minimum newdata and buffer pos in group */
 737        snd_pcm_group_for_each_entry(s, substream) {
 738                struct snd_card_asihpi_pcm *ds = s->runtime->private_data;
 739                runtime = s->runtime;
 740
 741                if (snd_pcm_substream_chip(s) != card)
 742                        continue;
 743
 744                /* don't link Cap and Play */
 745                if (substream->stream != s->stream)
 746                        continue;
 747
 748                hpi_handle_error(hpi_stream_get_info_ex(
 749                                        ds->h_stream, &state,
 750                                        &buffer_size, &bytes_avail,
 751                                        &samples_played, &on_card_bytes));
 752
 753                /* number of bytes in on-card buffer */
 754                runtime->delay = on_card_bytes;
 755
 756                if (!card->can_dma)
 757                        on_card_bytes = bytes_avail;
 758
 759                if (s->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 760                        pcm_buf_dma_ofs = ds->pcm_buf_host_rw_ofs - bytes_avail;
 761                        if (state == HPI_STATE_STOPPED) {
 762                                if (bytes_avail == 0) {
 763                                        hpi_handle_error(hpi_stream_start(ds->h_stream));
 764                                        snd_printdd("P%d start\n", s->number);
 765                                        ds->drained_count = 0;
 766                                }
 767                        } else if (state == HPI_STATE_DRAINED) {
 768                                snd_printd(KERN_WARNING "P%d drained\n",
 769                                                s->number);
 770                                ds->drained_count++;
 771                                if (ds->drained_count > 20) {
 772                                        unsigned long flags;
 773                                        snd_pcm_stream_lock_irqsave(s, flags);
 774                                        snd_pcm_stop(s, SNDRV_PCM_STATE_XRUN);
 775                                        snd_pcm_stream_unlock_irqrestore(s, flags);
 776                                        continue;
 777                                }
 778                        } else {
 779                                ds->drained_count = 0;
 780                        }
 781                } else
 782                        pcm_buf_dma_ofs = bytes_avail + ds->pcm_buf_host_rw_ofs;
 783
 784                if (first) {
 785                        /* can't statically init min when wrap is involved */
 786                        min_buf_pos = pcm_buf_dma_ofs;
 787                        newdata = (pcm_buf_dma_ofs - ds->pcm_buf_elapsed_dma_ofs) % ds->buffer_bytes;
 788                        first = 0;
 789                } else {
 790                        min_buf_pos =
 791                                modulo_min(min_buf_pos, pcm_buf_dma_ofs, UINT_MAX+1L);
 792                        newdata = min(
 793                                (pcm_buf_dma_ofs - ds->pcm_buf_elapsed_dma_ofs) % ds->buffer_bytes,
 794                                newdata);
 795                }
 796
 797                snd_printdd("hw_ptr 0x%04lX, appl_ptr 0x%04lX\n",
 798                        (unsigned long)frames_to_bytes(runtime,
 799                                                runtime->status->hw_ptr),
 800                        (unsigned long)frames_to_bytes(runtime,
 801                                                runtime->control->appl_ptr));
 802
 803                snd_printdd("%d S=%d, "
 804                        "rw=0x%04X, dma=0x%04X, left=0x%04X, "
 805                        "aux=0x%04X space=0x%04X\n",
 806                        s->number, state,
 807                        ds->pcm_buf_host_rw_ofs, pcm_buf_dma_ofs,
 808                        (int)bytes_avail,
 809                        (int)on_card_bytes, buffer_size-bytes_avail);
 810                loops++;
 811        }
 812        pcm_buf_dma_ofs = min_buf_pos;
 813
 814        remdata = newdata % dpcm->period_bytes;
 815        xfercount = newdata - remdata; /* a multiple of period_bytes */
 816        /* come back when on_card_bytes has decreased enough to allow
 817           write to happen, or when data has been consumed to make another
 818           period
 819        */
 820        if (xfercount && (on_card_bytes  > dpcm->period_bytes))
 821                next_jiffies = ((on_card_bytes - dpcm->period_bytes) * HZ / dpcm->bytes_per_sec);
 822        else
 823                next_jiffies = ((dpcm->period_bytes - remdata) * HZ / dpcm->bytes_per_sec);
 824
 825        next_jiffies = max(next_jiffies, 1U);
 826        dpcm->timer.expires = jiffies + next_jiffies;
 827        snd_printdd("jif %d buf pos 0x%04X newdata 0x%04X xfer 0x%04X\n",
 828                        next_jiffies, pcm_buf_dma_ofs, newdata, xfercount);
 829
 830        snd_pcm_group_for_each_entry(s, substream) {
 831                struct snd_card_asihpi_pcm *ds = s->runtime->private_data;
 832
 833                /* don't link Cap and Play */
 834                if (substream->stream != s->stream)
 835                        continue;
 836
 837                ds->pcm_buf_dma_ofs = pcm_buf_dma_ofs;
 838
 839                if (xfercount &&
 840                        /* Limit use of on card fifo for playback */
 841                        ((on_card_bytes <= ds->period_bytes) ||
 842                        (s->stream == SNDRV_PCM_STREAM_CAPTURE)))
 843
 844                {
 845
 846                        unsigned int buf_ofs = ds->pcm_buf_host_rw_ofs % ds->buffer_bytes;
 847                        unsigned int xfer1, xfer2;
 848                        char *pd = &s->runtime->dma_area[buf_ofs];
 849
 850                        if (card->can_dma) { /* buffer wrap is handled at lower level */
 851                                xfer1 = xfercount;
 852                                xfer2 = 0;
 853                        } else {
 854                                xfer1 = min(xfercount, ds->buffer_bytes - buf_ofs);
 855                                xfer2 = xfercount - xfer1;
 856                        }
 857
 858                        if (s->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 859                                snd_printddd("P%d write1 0x%04X 0x%04X\n",
 860                                        s->number, xfer1, buf_ofs);
 861                                hpi_handle_error(
 862                                        hpi_outstream_write_buf(
 863                                                ds->h_stream, pd, xfer1,
 864                                                &ds->format));
 865
 866                                if (xfer2) {
 867                                        pd = s->runtime->dma_area;
 868
 869                                        snd_printddd("P%d write2 0x%04X 0x%04X\n",
 870                                                        s->number,
 871                                                        xfercount - xfer1, buf_ofs);
 872                                        hpi_handle_error(
 873                                                hpi_outstream_write_buf(
 874                                                        ds->h_stream, pd,
 875                                                        xfercount - xfer1,
 876                                                        &ds->format));
 877                                }
 878                        } else {
 879                                snd_printddd("C%d read1 0x%04x\n",
 880                                        s->number, xfer1);
 881                                hpi_handle_error(
 882                                        hpi_instream_read_buf(
 883                                                ds->h_stream,
 884                                                pd, xfer1));
 885                                if (xfer2) {
 886                                        pd = s->runtime->dma_area;
 887                                        snd_printddd("C%d read2 0x%04x\n",
 888                                                s->number, xfer2);
 889                                        hpi_handle_error(
 890                                                hpi_instream_read_buf(
 891                                                        ds->h_stream,
 892                                                        pd, xfer2));
 893                                }
 894                        }
 895                        ds->pcm_buf_host_rw_ofs += xfercount;
 896                        ds->pcm_buf_elapsed_dma_ofs += xfercount;
 897                        snd_pcm_period_elapsed(s);
 898                }
 899        }
 900
 901        if (dpcm->respawn_timer)
 902                add_timer(&dpcm->timer);
 903}
 904
 905/***************************** PLAYBACK OPS ****************/
 906static int snd_card_asihpi_playback_ioctl(struct snd_pcm_substream *substream,
 907                                          unsigned int cmd, void *arg)
 908{
 909        char name[16];
 910        snd_pcm_debug_name(substream, name, sizeof(name));
 911        snd_printddd(KERN_INFO "%s ioctl %d\n", name, cmd);
 912        return snd_pcm_lib_ioctl(substream, cmd, arg);
 913}
 914
 915static int snd_card_asihpi_playback_prepare(struct snd_pcm_substream *
 916                                            substream)
 917{
 918        struct snd_pcm_runtime *runtime = substream->runtime;
 919        struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
 920
 921        snd_printdd("P%d prepare\n", substream->number);
 922
 923        hpi_handle_error(hpi_outstream_reset(dpcm->h_stream));
 924        dpcm->pcm_buf_host_rw_ofs = 0;
 925        dpcm->pcm_buf_dma_ofs = 0;
 926        dpcm->pcm_buf_elapsed_dma_ofs = 0;
 927        return 0;
 928}
 929
 930static snd_pcm_uframes_t
 931snd_card_asihpi_playback_pointer(struct snd_pcm_substream *substream)
 932{
 933        struct snd_pcm_runtime *runtime = substream->runtime;
 934        struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
 935        snd_pcm_uframes_t ptr;
 936        char name[16];
 937        snd_pcm_debug_name(substream, name, sizeof(name));
 938
 939        ptr = bytes_to_frames(runtime, dpcm->pcm_buf_dma_ofs  % dpcm->buffer_bytes);
 940        snd_printddd("%s pointer = 0x%04lx\n", name, (unsigned long)ptr);
 941        return ptr;
 942}
 943
 944static u64 snd_card_asihpi_playback_formats(struct snd_card_asihpi *asihpi,
 945                                                u32 h_stream)
 946{
 947        struct hpi_format hpi_format;
 948        u16 format;
 949        u16 err;
 950        u32 h_control;
 951        u32 sample_rate = 48000;
 952        u64 formats = 0;
 953
 954        /* on cards without SRC, must query at valid rate,
 955        * maybe set by external sync
 956        */
 957        err = hpi_mixer_get_control(asihpi->h_mixer,
 958                                  HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
 959                                  HPI_CONTROL_SAMPLECLOCK, &h_control);
 960
 961        if (!err)
 962                err = hpi_sample_clock_get_sample_rate(h_control,
 963                                &sample_rate);
 964
 965        for (format = HPI_FORMAT_PCM8_UNSIGNED;
 966             format <= HPI_FORMAT_PCM24_SIGNED; format++) {
 967                err = hpi_format_create(&hpi_format, asihpi->out_max_chans,
 968                                        format, sample_rate, 128000, 0);
 969                if (!err)
 970                        err = hpi_outstream_query_format(h_stream, &hpi_format);
 971                if (!err && (hpi_to_alsa_formats[format] != -1))
 972                        formats |= pcm_format_to_bits(hpi_to_alsa_formats[format]);
 973        }
 974        return formats;
 975}
 976
 977static int snd_card_asihpi_playback_open(struct snd_pcm_substream *substream)
 978{
 979        struct snd_pcm_runtime *runtime = substream->runtime;
 980        struct snd_card_asihpi_pcm *dpcm;
 981        struct snd_card_asihpi *card = snd_pcm_substream_chip(substream);
 982        struct snd_pcm_hardware snd_card_asihpi_playback;
 983        int err;
 984
 985        dpcm = kzalloc(sizeof(*dpcm), GFP_KERNEL);
 986        if (dpcm == NULL)
 987                return -ENOMEM;
 988
 989        err = hpi_outstream_open(card->hpi->adapter->index,
 990                              substream->number, &dpcm->h_stream);
 991        hpi_handle_error(err);
 992        if (err)
 993                kfree(dpcm);
 994        if (err == HPI_ERROR_OBJ_ALREADY_OPEN)
 995                return -EBUSY;
 996        if (err)
 997                return -EIO;
 998
 999        /*? also check ASI5000 samplerate source
1000            If external, only support external rate.
1001            If internal and other stream playing, can't switch
1002        */
1003
1004        init_timer(&dpcm->timer);
1005        dpcm->timer.data = (unsigned long) dpcm;
1006        dpcm->timer.function = snd_card_asihpi_timer_function;
1007        dpcm->substream = substream;
1008        runtime->private_data = dpcm;
1009        runtime->private_free = snd_card_asihpi_runtime_free;
1010
1011        memset(&snd_card_asihpi_playback, 0, sizeof(snd_card_asihpi_playback));
1012        snd_card_asihpi_playback.buffer_bytes_max = BUFFER_BYTES_MAX;
1013        snd_card_asihpi_playback.period_bytes_min = PERIOD_BYTES_MIN;
1014        /*?snd_card_asihpi_playback.period_bytes_min =
1015        card->out_max_chans * 4096; */
1016        snd_card_asihpi_playback.period_bytes_max = BUFFER_BYTES_MAX / PERIODS_MIN;
1017        snd_card_asihpi_playback.periods_min = PERIODS_MIN;
1018        snd_card_asihpi_playback.periods_max = BUFFER_BYTES_MAX / PERIOD_BYTES_MIN;
1019        /* snd_card_asihpi_playback.fifo_size = 0; */
1020        snd_card_asihpi_playback.channels_max = card->out_max_chans;
1021        snd_card_asihpi_playback.channels_min = card->out_min_chans;
1022        snd_card_asihpi_playback.formats =
1023                        snd_card_asihpi_playback_formats(card, dpcm->h_stream);
1024
1025        snd_card_asihpi_pcm_samplerates(card,  &snd_card_asihpi_playback);
1026
1027        snd_card_asihpi_playback.info = SNDRV_PCM_INFO_INTERLEAVED |
1028                                        SNDRV_PCM_INFO_DOUBLE |
1029                                        SNDRV_PCM_INFO_BATCH |
1030                                        SNDRV_PCM_INFO_BLOCK_TRANSFER |
1031                                        SNDRV_PCM_INFO_PAUSE |
1032                                        SNDRV_PCM_INFO_MMAP |
1033                                        SNDRV_PCM_INFO_MMAP_VALID;
1034
1035        if (card->support_grouping) {
1036                snd_card_asihpi_playback.info |= SNDRV_PCM_INFO_SYNC_START;
1037                snd_pcm_set_sync(substream);
1038        }
1039
1040        /* struct is copied, so can create initializer dynamically */
1041        runtime->hw = snd_card_asihpi_playback;
1042
1043        if (card->can_dma)
1044                err = snd_pcm_hw_constraint_pow2(runtime, 0,
1045                                        SNDRV_PCM_HW_PARAM_BUFFER_BYTES);
1046        if (err < 0)
1047                return err;
1048
1049        snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
1050                card->update_interval_frames);
1051
1052        snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
1053                card->update_interval_frames * 2, UINT_MAX);
1054
1055        snd_printdd("playback open\n");
1056
1057        return 0;
1058}
1059
1060static int snd_card_asihpi_playback_close(struct snd_pcm_substream *substream)
1061{
1062        struct snd_pcm_runtime *runtime = substream->runtime;
1063        struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
1064
1065        hpi_handle_error(hpi_outstream_close(dpcm->h_stream));
1066        snd_printdd("playback close\n");
1067
1068        return 0;
1069}
1070
1071static struct snd_pcm_ops snd_card_asihpi_playback_mmap_ops = {
1072        .open = snd_card_asihpi_playback_open,
1073        .close = snd_card_asihpi_playback_close,
1074        .ioctl = snd_card_asihpi_playback_ioctl,
1075        .hw_params = snd_card_asihpi_pcm_hw_params,
1076        .hw_free = snd_card_asihpi_hw_free,
1077        .prepare = snd_card_asihpi_playback_prepare,
1078        .trigger = snd_card_asihpi_trigger,
1079        .pointer = snd_card_asihpi_playback_pointer,
1080};
1081
1082/***************************** CAPTURE OPS ****************/
1083static snd_pcm_uframes_t
1084snd_card_asihpi_capture_pointer(struct snd_pcm_substream *substream)
1085{
1086        struct snd_pcm_runtime *runtime = substream->runtime;
1087        struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
1088
1089        snd_printddd("capture pointer %d=%d\n",
1090                        substream->number, dpcm->pcm_buf_dma_ofs);
1091        /* NOTE Unlike playback can't use actual samples_played
1092                for the capture position, because those samples aren't yet in
1093                the local buffer available for reading.
1094        */
1095        return bytes_to_frames(runtime, dpcm->pcm_buf_dma_ofs % dpcm->buffer_bytes);
1096}
1097
1098static int snd_card_asihpi_capture_ioctl(struct snd_pcm_substream *substream,
1099                                         unsigned int cmd, void *arg)
1100{
1101        return snd_pcm_lib_ioctl(substream, cmd, arg);
1102}
1103
1104static int snd_card_asihpi_capture_prepare(struct snd_pcm_substream *substream)
1105{
1106        struct snd_pcm_runtime *runtime = substream->runtime;
1107        struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
1108
1109        hpi_handle_error(hpi_instream_reset(dpcm->h_stream));
1110        dpcm->pcm_buf_host_rw_ofs = 0;
1111        dpcm->pcm_buf_dma_ofs = 0;
1112        dpcm->pcm_buf_elapsed_dma_ofs = 0;
1113
1114        snd_printdd("Capture Prepare %d\n", substream->number);
1115        return 0;
1116}
1117
1118
1119
1120static u64 snd_card_asihpi_capture_formats(struct snd_card_asihpi *asihpi,
1121                                        u32 h_stream)
1122{
1123  struct hpi_format hpi_format;
1124        u16 format;
1125        u16 err;
1126        u32 h_control;
1127        u32 sample_rate = 48000;
1128        u64 formats = 0;
1129
1130        /* on cards without SRC, must query at valid rate,
1131                maybe set by external sync */
1132        err = hpi_mixer_get_control(asihpi->h_mixer,
1133                                  HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
1134                                  HPI_CONTROL_SAMPLECLOCK, &h_control);
1135
1136        if (!err)
1137                err = hpi_sample_clock_get_sample_rate(h_control,
1138                        &sample_rate);
1139
1140        for (format = HPI_FORMAT_PCM8_UNSIGNED;
1141                format <= HPI_FORMAT_PCM24_SIGNED; format++) {
1142
1143                err = hpi_format_create(&hpi_format, asihpi->in_max_chans,
1144                                        format, sample_rate, 128000, 0);
1145                if (!err)
1146                        err = hpi_instream_query_format(h_stream, &hpi_format);
1147                if (!err && (hpi_to_alsa_formats[format] != -1))
1148                        formats |= pcm_format_to_bits(hpi_to_alsa_formats[format]);
1149        }
1150        return formats;
1151}
1152
1153static int snd_card_asihpi_capture_open(struct snd_pcm_substream *substream)
1154{
1155        struct snd_pcm_runtime *runtime = substream->runtime;
1156        struct snd_card_asihpi *card = snd_pcm_substream_chip(substream);
1157        struct snd_card_asihpi_pcm *dpcm;
1158        struct snd_pcm_hardware snd_card_asihpi_capture;
1159        int err;
1160
1161        dpcm = kzalloc(sizeof(*dpcm), GFP_KERNEL);
1162        if (dpcm == NULL)
1163                return -ENOMEM;
1164
1165        snd_printdd("capture open adapter %d stream %d\n",
1166                        card->hpi->adapter->index, substream->number);
1167
1168        err = hpi_handle_error(
1169            hpi_instream_open(card->hpi->adapter->index,
1170                             substream->number, &dpcm->h_stream));
1171        if (err)
1172                kfree(dpcm);
1173        if (err == HPI_ERROR_OBJ_ALREADY_OPEN)
1174                return -EBUSY;
1175        if (err)
1176                return -EIO;
1177
1178        init_timer(&dpcm->timer);
1179        dpcm->timer.data = (unsigned long) dpcm;
1180        dpcm->timer.function = snd_card_asihpi_timer_function;
1181        dpcm->substream = substream;
1182        runtime->private_data = dpcm;
1183        runtime->private_free = snd_card_asihpi_runtime_free;
1184
1185        memset(&snd_card_asihpi_capture, 0, sizeof(snd_card_asihpi_capture));
1186        snd_card_asihpi_capture.buffer_bytes_max = BUFFER_BYTES_MAX;
1187        snd_card_asihpi_capture.period_bytes_min = PERIOD_BYTES_MIN;
1188        snd_card_asihpi_capture.period_bytes_max = BUFFER_BYTES_MAX / PERIODS_MIN;
1189        snd_card_asihpi_capture.periods_min = PERIODS_MIN;
1190        snd_card_asihpi_capture.periods_max = BUFFER_BYTES_MAX / PERIOD_BYTES_MIN;
1191        /* snd_card_asihpi_capture.fifo_size = 0; */
1192        snd_card_asihpi_capture.channels_max = card->in_max_chans;
1193        snd_card_asihpi_capture.channels_min = card->in_min_chans;
1194        snd_card_asihpi_capture.formats =
1195                snd_card_asihpi_capture_formats(card, dpcm->h_stream);
1196        snd_card_asihpi_pcm_samplerates(card,  &snd_card_asihpi_capture);
1197        snd_card_asihpi_capture.info = SNDRV_PCM_INFO_INTERLEAVED |
1198                                        SNDRV_PCM_INFO_MMAP |
1199                                        SNDRV_PCM_INFO_MMAP_VALID;
1200
1201        if (card->support_grouping)
1202                snd_card_asihpi_capture.info |= SNDRV_PCM_INFO_SYNC_START;
1203
1204        runtime->hw = snd_card_asihpi_capture;
1205
1206        if (card->can_dma)
1207                err = snd_pcm_hw_constraint_pow2(runtime, 0,
1208                                        SNDRV_PCM_HW_PARAM_BUFFER_BYTES);
1209        if (err < 0)
1210                return err;
1211
1212        snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
1213                card->update_interval_frames);
1214        snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
1215                card->update_interval_frames * 2, UINT_MAX);
1216
1217        snd_pcm_set_sync(substream);
1218
1219        return 0;
1220}
1221
1222static int snd_card_asihpi_capture_close(struct snd_pcm_substream *substream)
1223{
1224        struct snd_card_asihpi_pcm *dpcm = substream->runtime->private_data;
1225
1226        hpi_handle_error(hpi_instream_close(dpcm->h_stream));
1227        return 0;
1228}
1229
1230static struct snd_pcm_ops snd_card_asihpi_capture_mmap_ops = {
1231        .open = snd_card_asihpi_capture_open,
1232        .close = snd_card_asihpi_capture_close,
1233        .ioctl = snd_card_asihpi_capture_ioctl,
1234        .hw_params = snd_card_asihpi_pcm_hw_params,
1235        .hw_free = snd_card_asihpi_hw_free,
1236        .prepare = snd_card_asihpi_capture_prepare,
1237        .trigger = snd_card_asihpi_trigger,
1238        .pointer = snd_card_asihpi_capture_pointer,
1239};
1240
1241static int snd_card_asihpi_pcm_new(struct snd_card_asihpi *asihpi, int device)
1242{
1243        struct snd_pcm *pcm;
1244        int err;
1245        u16 num_instreams, num_outstreams, x16;
1246        u32 x32;
1247
1248        err = hpi_adapter_get_info(asihpi->hpi->adapter->index,
1249                        &num_outstreams, &num_instreams,
1250                        &x16, &x32, &x16);
1251
1252        err = snd_pcm_new(asihpi->card, "Asihpi PCM", device,
1253                        num_outstreams, num_instreams, &pcm);
1254        if (err < 0)
1255                return err;
1256
1257        /* pointer to ops struct is stored, dont change ops afterwards! */
1258        snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1259                        &snd_card_asihpi_playback_mmap_ops);
1260        snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
1261                        &snd_card_asihpi_capture_mmap_ops);
1262
1263        pcm->private_data = asihpi;
1264        pcm->info_flags = 0;
1265        strcpy(pcm->name, "Asihpi PCM");
1266
1267        /*? do we want to emulate MMAP for non-BBM cards?
1268        Jack doesn't work with ALSAs MMAP emulation - WHY NOT? */
1269        snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1270                                                snd_dma_pci_data(asihpi->pci),
1271                                                64*1024, BUFFER_BYTES_MAX);
1272
1273        return 0;
1274}
1275
1276/***************************** MIXER CONTROLS ****************/
1277struct hpi_control {
1278        u32 h_control;
1279        u16 control_type;
1280        u16 src_node_type;
1281        u16 src_node_index;
1282        u16 dst_node_type;
1283        u16 dst_node_index;
1284        u16 band;
1285        char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* copied to snd_ctl_elem_id.name[44]; */
1286};
1287
1288static const char * const asihpi_tuner_band_names[] = {
1289        "invalid",
1290        "AM",
1291        "FM mono",
1292        "TV NTSC-M",
1293        "FM stereo",
1294        "AUX",
1295        "TV PAL BG",
1296        "TV PAL I",
1297        "TV PAL DK",
1298        "TV SECAM",
1299};
1300
1301compile_time_assert(
1302        (ARRAY_SIZE(asihpi_tuner_band_names) ==
1303                (HPI_TUNER_BAND_LAST+1)),
1304        assert_tuner_band_names_size);
1305
1306static const char * const asihpi_src_names[] = {
1307        "no source",
1308        "PCM",
1309        "Line",
1310        "Digital",
1311        "Tuner",
1312        "RF",
1313        "Clock",
1314        "Bitstream",
1315        "Mic",
1316        "Net",
1317        "Analog",
1318        "Adapter",
1319        "RTP",
1320        "Internal"
1321};
1322
1323compile_time_assert(
1324        (ARRAY_SIZE(asihpi_src_names) ==
1325                (HPI_SOURCENODE_LAST_INDEX-HPI_SOURCENODE_NONE+1)),
1326        assert_src_names_size);
1327
1328static const char * const asihpi_dst_names[] = {
1329        "no destination",
1330        "PCM",
1331        "Line",
1332        "Digital",
1333        "RF",
1334        "Speaker",
1335        "Net",
1336        "Analog",
1337        "RTP",
1338};
1339
1340compile_time_assert(
1341        (ARRAY_SIZE(asihpi_dst_names) ==
1342                (HPI_DESTNODE_LAST_INDEX-HPI_DESTNODE_NONE+1)),
1343        assert_dst_names_size);
1344
1345static inline int ctl_add(struct snd_card *card, struct snd_kcontrol_new *ctl,
1346                                struct snd_card_asihpi *asihpi)
1347{
1348        int err;
1349
1350        err = snd_ctl_add(card, snd_ctl_new1(ctl, asihpi));
1351        if (err < 0)
1352                return err;
1353        else if (mixer_dump)
1354                snd_printk(KERN_INFO "added %s(%d)\n", ctl->name, ctl->index);
1355
1356        return 0;
1357}
1358
1359/* Convert HPI control name and location into ALSA control name */
1360static void asihpi_ctl_init(struct snd_kcontrol_new *snd_control,
1361                                struct hpi_control *hpi_ctl,
1362                                char *name)
1363{
1364        char *dir;
1365        memset(snd_control, 0, sizeof(*snd_control));
1366        snd_control->name = hpi_ctl->name;
1367        snd_control->private_value = hpi_ctl->h_control;
1368        snd_control->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1369        snd_control->index = 0;
1370
1371        if (hpi_ctl->src_node_type + HPI_SOURCENODE_NONE == HPI_SOURCENODE_CLOCK_SOURCE)
1372                dir = ""; /* clock is neither capture nor playback */
1373        else if (hpi_ctl->dst_node_type + HPI_DESTNODE_NONE == HPI_DESTNODE_ISTREAM)
1374                dir = "Capture ";  /* On or towards a PCM capture destination*/
1375        else if ((hpi_ctl->src_node_type + HPI_SOURCENODE_NONE != HPI_SOURCENODE_OSTREAM) &&
1376                (!hpi_ctl->dst_node_type))
1377                dir = "Capture "; /* On a source node that is not PCM playback */
1378        else if (hpi_ctl->src_node_type &&
1379                (hpi_ctl->src_node_type + HPI_SOURCENODE_NONE != HPI_SOURCENODE_OSTREAM) &&
1380                (hpi_ctl->dst_node_type))
1381                dir = "Monitor Playback "; /* Between an input and an output */
1382        else
1383                dir = "Playback "; /* PCM Playback source, or  output node */
1384
1385        if (hpi_ctl->src_node_type && hpi_ctl->dst_node_type)
1386                sprintf(hpi_ctl->name, "%s %d %s %d %s%s",
1387                        asihpi_src_names[hpi_ctl->src_node_type],
1388                        hpi_ctl->src_node_index,
1389                        asihpi_dst_names[hpi_ctl->dst_node_type],
1390                        hpi_ctl->dst_node_index,
1391                        dir, name);
1392        else if (hpi_ctl->dst_node_type) {
1393                sprintf(hpi_ctl->name, "%s %d %s%s",
1394                asihpi_dst_names[hpi_ctl->dst_node_type],
1395                hpi_ctl->dst_node_index,
1396                dir, name);
1397        } else {
1398                sprintf(hpi_ctl->name, "%s %d %s%s",
1399                asihpi_src_names[hpi_ctl->src_node_type],
1400                hpi_ctl->src_node_index,
1401                dir, name);
1402        }
1403        /* printk(KERN_INFO "Adding %s %d to %d ",  hpi_ctl->name,
1404                hpi_ctl->wSrcNodeType, hpi_ctl->wDstNodeType); */
1405}
1406
1407/*------------------------------------------------------------
1408   Volume controls
1409 ------------------------------------------------------------*/
1410#define VOL_STEP_mB 1
1411static int snd_asihpi_volume_info(struct snd_kcontrol *kcontrol,
1412                                  struct snd_ctl_elem_info *uinfo)
1413{
1414        u32 h_control = kcontrol->private_value;
1415        u32 count;
1416        u16 err;
1417        /* native gains are in millibels */
1418        short min_gain_mB;
1419        short max_gain_mB;
1420        short step_gain_mB;
1421
1422        err = hpi_volume_query_range(h_control,
1423                        &min_gain_mB, &max_gain_mB, &step_gain_mB);
1424        if (err) {
1425                max_gain_mB = 0;
1426                min_gain_mB = -10000;
1427                step_gain_mB = VOL_STEP_mB;
1428        }
1429
1430        err = hpi_meter_query_channels(h_control, &count);
1431        if (err)
1432                count = HPI_MAX_CHANNELS;
1433
1434        uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1435        uinfo->count = count;
1436        uinfo->value.integer.min = min_gain_mB / VOL_STEP_mB;
1437        uinfo->value.integer.max = max_gain_mB / VOL_STEP_mB;
1438        uinfo->value.integer.step = step_gain_mB / VOL_STEP_mB;
1439        return 0;
1440}
1441
1442static int snd_asihpi_volume_get(struct snd_kcontrol *kcontrol,
1443                                 struct snd_ctl_elem_value *ucontrol)
1444{
1445        u32 h_control = kcontrol->private_value;
1446        short an_gain_mB[HPI_MAX_CHANNELS];
1447
1448        hpi_handle_error(hpi_volume_get_gain(h_control, an_gain_mB));
1449        ucontrol->value.integer.value[0] = an_gain_mB[0] / VOL_STEP_mB;
1450        ucontrol->value.integer.value[1] = an_gain_mB[1] / VOL_STEP_mB;
1451
1452        return 0;
1453}
1454
1455static int snd_asihpi_volume_put(struct snd_kcontrol *kcontrol,
1456                                 struct snd_ctl_elem_value *ucontrol)
1457{
1458        int change;
1459        u32 h_control = kcontrol->private_value;
1460        short an_gain_mB[HPI_MAX_CHANNELS];
1461
1462        an_gain_mB[0] =
1463            (ucontrol->value.integer.value[0]) * VOL_STEP_mB;
1464        an_gain_mB[1] =
1465            (ucontrol->value.integer.value[1]) * VOL_STEP_mB;
1466        /*  change = asihpi->mixer_volume[addr][0] != left ||
1467           asihpi->mixer_volume[addr][1] != right;
1468         */
1469        change = 1;
1470        hpi_handle_error(hpi_volume_set_gain(h_control, an_gain_mB));
1471        return change;
1472}
1473
1474static const DECLARE_TLV_DB_SCALE(db_scale_100, -10000, VOL_STEP_mB, 0);
1475
1476#define snd_asihpi_volume_mute_info     snd_ctl_boolean_mono_info
1477
1478static int snd_asihpi_volume_mute_get(struct snd_kcontrol *kcontrol,
1479                                 struct snd_ctl_elem_value *ucontrol)
1480{
1481        u32 h_control = kcontrol->private_value;
1482        u32 mute;
1483
1484        hpi_handle_error(hpi_volume_get_mute(h_control, &mute));
1485        ucontrol->value.integer.value[0] = mute ? 0 : 1;
1486
1487        return 0;
1488}
1489
1490static int snd_asihpi_volume_mute_put(struct snd_kcontrol *kcontrol,
1491                                 struct snd_ctl_elem_value *ucontrol)
1492{
1493        u32 h_control = kcontrol->private_value;
1494        int change = 1;
1495        /* HPI currently only supports all or none muting of multichannel volume
1496        ALSA Switch element has opposite sense to HPI mute: on==unmuted, off=muted
1497        */
1498        int mute =  ucontrol->value.integer.value[0] ? 0 : HPI_BITMASK_ALL_CHANNELS;
1499        hpi_handle_error(hpi_volume_set_mute(h_control, mute));
1500        return change;
1501}
1502
1503static int snd_asihpi_volume_add(struct snd_card_asihpi *asihpi,
1504                                 struct hpi_control *hpi_ctl)
1505{
1506        struct snd_card *card = asihpi->card;
1507        struct snd_kcontrol_new snd_control;
1508        int err;
1509        u32 mute;
1510
1511        asihpi_ctl_init(&snd_control, hpi_ctl, "Volume");
1512        snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
1513                                SNDRV_CTL_ELEM_ACCESS_TLV_READ;
1514        snd_control.info = snd_asihpi_volume_info;
1515        snd_control.get = snd_asihpi_volume_get;
1516        snd_control.put = snd_asihpi_volume_put;
1517        snd_control.tlv.p = db_scale_100;
1518
1519        err = ctl_add(card, &snd_control, asihpi);
1520        if (err)
1521                return err;
1522
1523        if (hpi_volume_get_mute(hpi_ctl->h_control, &mute) == 0) {
1524                asihpi_ctl_init(&snd_control, hpi_ctl, "Switch");
1525                snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
1526                snd_control.info = snd_asihpi_volume_mute_info;
1527                snd_control.get = snd_asihpi_volume_mute_get;
1528                snd_control.put = snd_asihpi_volume_mute_put;
1529                err = ctl_add(card, &snd_control, asihpi);
1530        }
1531        return err;
1532}
1533
1534/*------------------------------------------------------------
1535   Level controls
1536 ------------------------------------------------------------*/
1537static int snd_asihpi_level_info(struct snd_kcontrol *kcontrol,
1538                                 struct snd_ctl_elem_info *uinfo)
1539{
1540        u32 h_control = kcontrol->private_value;
1541        u16 err;
1542        short min_gain_mB;
1543        short max_gain_mB;
1544        short step_gain_mB;
1545
1546        err =
1547            hpi_level_query_range(h_control, &min_gain_mB,
1548                               &max_gain_mB, &step_gain_mB);
1549        if (err) {
1550                max_gain_mB = 2400;
1551                min_gain_mB = -1000;
1552                step_gain_mB = 100;
1553        }
1554
1555        uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1556        uinfo->count = 2;
1557        uinfo->value.integer.min = min_gain_mB / HPI_UNITS_PER_dB;
1558        uinfo->value.integer.max = max_gain_mB / HPI_UNITS_PER_dB;
1559        uinfo->value.integer.step = step_gain_mB / HPI_UNITS_PER_dB;
1560        return 0;
1561}
1562
1563static int snd_asihpi_level_get(struct snd_kcontrol *kcontrol,
1564                                struct snd_ctl_elem_value *ucontrol)
1565{
1566        u32 h_control = kcontrol->private_value;
1567        short an_gain_mB[HPI_MAX_CHANNELS];
1568
1569        hpi_handle_error(hpi_level_get_gain(h_control, an_gain_mB));
1570        ucontrol->value.integer.value[0] =
1571            an_gain_mB[0] / HPI_UNITS_PER_dB;
1572        ucontrol->value.integer.value[1] =
1573            an_gain_mB[1] / HPI_UNITS_PER_dB;
1574
1575        return 0;
1576}
1577
1578static int snd_asihpi_level_put(struct snd_kcontrol *kcontrol,
1579                                struct snd_ctl_elem_value *ucontrol)
1580{
1581        int change;
1582        u32 h_control = kcontrol->private_value;
1583        short an_gain_mB[HPI_MAX_CHANNELS];
1584
1585        an_gain_mB[0] =
1586            (ucontrol->value.integer.value[0]) * HPI_UNITS_PER_dB;
1587        an_gain_mB[1] =
1588            (ucontrol->value.integer.value[1]) * HPI_UNITS_PER_dB;
1589        /*  change = asihpi->mixer_level[addr][0] != left ||
1590           asihpi->mixer_level[addr][1] != right;
1591         */
1592        change = 1;
1593        hpi_handle_error(hpi_level_set_gain(h_control, an_gain_mB));
1594        return change;
1595}
1596
1597static const DECLARE_TLV_DB_SCALE(db_scale_level, -1000, 100, 0);
1598
1599static int snd_asihpi_level_add(struct snd_card_asihpi *asihpi,
1600                                struct hpi_control *hpi_ctl)
1601{
1602        struct snd_card *card = asihpi->card;
1603        struct snd_kcontrol_new snd_control;
1604
1605        /* can't use 'volume' cos some nodes have volume as well */
1606        asihpi_ctl_init(&snd_control, hpi_ctl, "Level");
1607        snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
1608                                SNDRV_CTL_ELEM_ACCESS_TLV_READ;
1609        snd_control.info = snd_asihpi_level_info;
1610        snd_control.get = snd_asihpi_level_get;
1611        snd_control.put = snd_asihpi_level_put;
1612        snd_control.tlv.p = db_scale_level;
1613
1614        return ctl_add(card, &snd_control, asihpi);
1615}
1616
1617/*------------------------------------------------------------
1618   AESEBU controls
1619 ------------------------------------------------------------*/
1620
1621/* AESEBU format */
1622static const char * const asihpi_aesebu_format_names[] = {
1623        "N/A", "S/PDIF", "AES/EBU" };
1624
1625static int snd_asihpi_aesebu_format_info(struct snd_kcontrol *kcontrol,
1626                                  struct snd_ctl_elem_info *uinfo)
1627{
1628        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1629        uinfo->count = 1;
1630        uinfo->value.enumerated.items = 3;
1631
1632        if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
1633                uinfo->value.enumerated.item =
1634                        uinfo->value.enumerated.items - 1;
1635
1636        strcpy(uinfo->value.enumerated.name,
1637                asihpi_aesebu_format_names[uinfo->value.enumerated.item]);
1638
1639        return 0;
1640}
1641
1642static int snd_asihpi_aesebu_format_get(struct snd_kcontrol *kcontrol,
1643                        struct snd_ctl_elem_value *ucontrol,
1644                        u16 (*func)(u32, u16 *))
1645{
1646        u32 h_control = kcontrol->private_value;
1647        u16 source, err;
1648
1649        err = func(h_control, &source);
1650
1651        /* default to N/A */
1652        ucontrol->value.enumerated.item[0] = 0;
1653        /* return success but set the control to N/A */
1654        if (err)
1655                return 0;
1656        if (source == HPI_AESEBU_FORMAT_SPDIF)
1657                ucontrol->value.enumerated.item[0] = 1;
1658        if (source == HPI_AESEBU_FORMAT_AESEBU)
1659                ucontrol->value.enumerated.item[0] = 2;
1660
1661        return 0;
1662}
1663
1664static int snd_asihpi_aesebu_format_put(struct snd_kcontrol *kcontrol,
1665                        struct snd_ctl_elem_value *ucontrol,
1666                         u16 (*func)(u32, u16))
1667{
1668        u32 h_control = kcontrol->private_value;
1669
1670        /* default to S/PDIF */
1671        u16 source = HPI_AESEBU_FORMAT_SPDIF;
1672
1673        if (ucontrol->value.enumerated.item[0] == 1)
1674                source = HPI_AESEBU_FORMAT_SPDIF;
1675        if (ucontrol->value.enumerated.item[0] == 2)
1676                source = HPI_AESEBU_FORMAT_AESEBU;
1677
1678        if (func(h_control, source) != 0)
1679                return -EINVAL;
1680
1681        return 1;
1682}
1683
1684static int snd_asihpi_aesebu_rx_format_get(struct snd_kcontrol *kcontrol,
1685                                 struct snd_ctl_elem_value *ucontrol) {
1686        return snd_asihpi_aesebu_format_get(kcontrol, ucontrol,
1687                                        hpi_aesebu_receiver_get_format);
1688}
1689
1690static int snd_asihpi_aesebu_rx_format_put(struct snd_kcontrol *kcontrol,
1691                                 struct snd_ctl_elem_value *ucontrol) {
1692        return snd_asihpi_aesebu_format_put(kcontrol, ucontrol,
1693                                        hpi_aesebu_receiver_set_format);
1694}
1695
1696static int snd_asihpi_aesebu_rxstatus_info(struct snd_kcontrol *kcontrol,
1697                                  struct snd_ctl_elem_info *uinfo)
1698{
1699        uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1700        uinfo->count = 1;
1701
1702        uinfo->value.integer.min = 0;
1703        uinfo->value.integer.max = 0X1F;
1704        uinfo->value.integer.step = 1;
1705
1706        return 0;
1707}
1708
1709static int snd_asihpi_aesebu_rxstatus_get(struct snd_kcontrol *kcontrol,
1710                                 struct snd_ctl_elem_value *ucontrol) {
1711
1712        u32 h_control = kcontrol->private_value;
1713        u16 status;
1714
1715        hpi_handle_error(hpi_aesebu_receiver_get_error_status(
1716                                         h_control, &status));
1717        ucontrol->value.integer.value[0] = status;
1718        return 0;
1719}
1720
1721static int snd_asihpi_aesebu_rx_add(struct snd_card_asihpi *asihpi,
1722                                    struct hpi_control *hpi_ctl)
1723{
1724        struct snd_card *card = asihpi->card;
1725        struct snd_kcontrol_new snd_control;
1726
1727        asihpi_ctl_init(&snd_control, hpi_ctl, "Format");
1728        snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
1729        snd_control.info = snd_asihpi_aesebu_format_info;
1730        snd_control.get = snd_asihpi_aesebu_rx_format_get;
1731        snd_control.put = snd_asihpi_aesebu_rx_format_put;
1732
1733
1734        if (ctl_add(card, &snd_control, asihpi) < 0)
1735                return -EINVAL;
1736
1737        asihpi_ctl_init(&snd_control, hpi_ctl, "Status");
1738        snd_control.access =
1739            SNDRV_CTL_ELEM_ACCESS_VOLATILE | SNDRV_CTL_ELEM_ACCESS_READ;
1740        snd_control.info = snd_asihpi_aesebu_rxstatus_info;
1741        snd_control.get = snd_asihpi_aesebu_rxstatus_get;
1742
1743        return ctl_add(card, &snd_control, asihpi);
1744}
1745
1746static int snd_asihpi_aesebu_tx_format_get(struct snd_kcontrol *kcontrol,
1747                                 struct snd_ctl_elem_value *ucontrol) {
1748        return snd_asihpi_aesebu_format_get(kcontrol, ucontrol,
1749                                        hpi_aesebu_transmitter_get_format);
1750}
1751
1752static int snd_asihpi_aesebu_tx_format_put(struct snd_kcontrol *kcontrol,
1753                                 struct snd_ctl_elem_value *ucontrol) {
1754        return snd_asihpi_aesebu_format_put(kcontrol, ucontrol,
1755                                        hpi_aesebu_transmitter_set_format);
1756}
1757
1758
1759static int snd_asihpi_aesebu_tx_add(struct snd_card_asihpi *asihpi,
1760                                    struct hpi_control *hpi_ctl)
1761{
1762        struct snd_card *card = asihpi->card;
1763        struct snd_kcontrol_new snd_control;
1764
1765        asihpi_ctl_init(&snd_control, hpi_ctl, "Format");
1766        snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
1767        snd_control.info = snd_asihpi_aesebu_format_info;
1768        snd_control.get = snd_asihpi_aesebu_tx_format_get;
1769        snd_control.put = snd_asihpi_aesebu_tx_format_put;
1770
1771        return ctl_add(card, &snd_control, asihpi);
1772}
1773
1774/*------------------------------------------------------------
1775   Tuner controls
1776 ------------------------------------------------------------*/
1777
1778/* Gain */
1779
1780static int snd_asihpi_tuner_gain_info(struct snd_kcontrol *kcontrol,
1781                                  struct snd_ctl_elem_info *uinfo)
1782{
1783        u32 h_control = kcontrol->private_value;
1784        u16 err;
1785        short idx;
1786        u16 gain_range[3];
1787
1788        for (idx = 0; idx < 3; idx++) {
1789                err = hpi_tuner_query_gain(h_control,
1790                                          idx, &gain_range[idx]);
1791                if (err != 0)
1792                        return err;
1793        }
1794
1795        uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1796        uinfo->count = 1;
1797        uinfo->value.integer.min = ((int)gain_range[0]) / HPI_UNITS_PER_dB;
1798        uinfo->value.integer.max = ((int)gain_range[1]) / HPI_UNITS_PER_dB;
1799        uinfo->value.integer.step = ((int) gain_range[2]) / HPI_UNITS_PER_dB;
1800        return 0;
1801}
1802
1803static int snd_asihpi_tuner_gain_get(struct snd_kcontrol *kcontrol,
1804                                 struct snd_ctl_elem_value *ucontrol)
1805{
1806        /*
1807        struct snd_card_asihpi *asihpi = snd_kcontrol_chip(kcontrol);
1808        */
1809        u32 h_control = kcontrol->private_value;
1810        short gain;
1811
1812        hpi_handle_error(hpi_tuner_get_gain(h_control, &gain));
1813        ucontrol->value.integer.value[0] = gain / HPI_UNITS_PER_dB;
1814
1815        return 0;
1816}
1817
1818static int snd_asihpi_tuner_gain_put(struct snd_kcontrol *kcontrol,
1819                                 struct snd_ctl_elem_value *ucontrol)
1820{
1821        /*
1822        struct snd_card_asihpi *asihpi = snd_kcontrol_chip(kcontrol);
1823        */
1824        u32 h_control = kcontrol->private_value;
1825        short gain;
1826
1827        gain = (ucontrol->value.integer.value[0]) * HPI_UNITS_PER_dB;
1828        hpi_handle_error(hpi_tuner_set_gain(h_control, gain));
1829
1830        return 1;
1831}
1832
1833/* Band  */
1834
1835static int asihpi_tuner_band_query(struct snd_kcontrol *kcontrol,
1836                                        u16 *band_list, u32 len) {
1837        u32 h_control = kcontrol->private_value;
1838        u16 err = 0;
1839        u32 i;
1840
1841        for (i = 0; i < len; i++) {
1842                err = hpi_tuner_query_band(
1843                                h_control, i, &band_list[i]);
1844                if (err != 0)
1845                        break;
1846        }
1847
1848        if (err && (err != HPI_ERROR_INVALID_OBJ_INDEX))
1849                return -EIO;
1850
1851        return i;
1852}
1853
1854static int snd_asihpi_tuner_band_info(struct snd_kcontrol *kcontrol,
1855                                  struct snd_ctl_elem_info *uinfo)
1856{
1857        u16 tuner_bands[HPI_TUNER_BAND_LAST];
1858        int num_bands = 0;
1859
1860        num_bands = asihpi_tuner_band_query(kcontrol, tuner_bands,
1861                                HPI_TUNER_BAND_LAST);
1862
1863        if (num_bands < 0)
1864                return num_bands;
1865
1866        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1867        uinfo->count = 1;
1868        uinfo->value.enumerated.items = num_bands;
1869
1870        if (num_bands > 0) {
1871                if (uinfo->value.enumerated.item >=
1872                                        uinfo->value.enumerated.items)
1873                        uinfo->value.enumerated.item =
1874                                uinfo->value.enumerated.items - 1;
1875
1876                strcpy(uinfo->value.enumerated.name,
1877                        asihpi_tuner_band_names[
1878                                tuner_bands[uinfo->value.enumerated.item]]);
1879
1880        }
1881        return 0;
1882}
1883
1884static int snd_asihpi_tuner_band_get(struct snd_kcontrol *kcontrol,
1885                                 struct snd_ctl_elem_value *ucontrol)
1886{
1887        u32 h_control = kcontrol->private_value;
1888        /*
1889        struct snd_card_asihpi *asihpi = snd_kcontrol_chip(kcontrol);
1890        */
1891        u16 band, idx;
1892        u16 tuner_bands[HPI_TUNER_BAND_LAST];
1893        u32 num_bands = 0;
1894
1895        num_bands = asihpi_tuner_band_query(kcontrol, tuner_bands,
1896                                HPI_TUNER_BAND_LAST);
1897
1898        hpi_handle_error(hpi_tuner_get_band(h_control, &band));
1899
1900        ucontrol->value.enumerated.item[0] = -1;
1901        for (idx = 0; idx < HPI_TUNER_BAND_LAST; idx++)
1902                if (tuner_bands[idx] == band) {
1903                        ucontrol->value.enumerated.item[0] = idx;
1904                        break;
1905                }
1906
1907        return 0;
1908}
1909
1910static int snd_asihpi_tuner_band_put(struct snd_kcontrol *kcontrol,
1911                                 struct snd_ctl_elem_value *ucontrol)
1912{
1913        /*
1914        struct snd_card_asihpi *asihpi = snd_kcontrol_chip(kcontrol);
1915        */
1916        u32 h_control = kcontrol->private_value;
1917        unsigned int idx;
1918        u16 band;
1919        u16 tuner_bands[HPI_TUNER_BAND_LAST];
1920        u32 num_bands = 0;
1921
1922        num_bands = asihpi_tuner_band_query(kcontrol, tuner_bands,
1923                        HPI_TUNER_BAND_LAST);
1924
1925        idx = ucontrol->value.enumerated.item[0];
1926        if (idx >= ARRAY_SIZE(tuner_bands))
1927                idx = ARRAY_SIZE(tuner_bands) - 1;
1928        band = tuner_bands[idx];
1929        hpi_handle_error(hpi_tuner_set_band(h_control, band));
1930
1931        return 1;
1932}
1933
1934/* Freq */
1935
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 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        u32 h_control = kcontrol->private_value;
2048        u32 count;
2049        u16 err;
2050        err = hpi_meter_query_channels(h_control, &count);
2051        if (err)
2052                count = HPI_MAX_CHANNELS;
2053
2054        uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2055        uinfo->count = count;
2056        uinfo->value.integer.min = 0;
2057        uinfo->value.integer.max = 0x7FFFFFFF;
2058        return 0;
2059}
2060
2061/* linear values for 10dB steps */
2062static int log2lin[] = {
2063        0x7FFFFFFF, /* 0dB */
2064        679093956,
2065        214748365,
2066         67909396,
2067         21474837,
2068          6790940,
2069          2147484, /* -60dB */
2070           679094,
2071           214748, /* -80 */
2072            67909,
2073            21475, /* -100 */
2074             6791,
2075             2147,
2076              679,
2077              214,
2078               68,
2079               21,
2080                7,
2081                2
2082};
2083
2084static int snd_asihpi_meter_get(struct snd_kcontrol *kcontrol,
2085                                struct snd_ctl_elem_value *ucontrol)
2086{
2087        u32 h_control = kcontrol->private_value;
2088        short an_gain_mB[HPI_MAX_CHANNELS], i;
2089        u16 err;
2090
2091        err = hpi_meter_get_peak(h_control, an_gain_mB);
2092
2093        for (i = 0; i < HPI_MAX_CHANNELS; i++) {
2094                if (err) {
2095                        ucontrol->value.integer.value[i] = 0;
2096                } else if (an_gain_mB[i] >= 0) {
2097                        ucontrol->value.integer.value[i] =
2098                                an_gain_mB[i] << 16;
2099                } else {
2100                        /* -ve is log value in millibels < -60dB,
2101                        * convert to (roughly!) linear,
2102                        */
2103                        ucontrol->value.integer.value[i] =
2104                                        log2lin[an_gain_mB[i] / -1000];
2105                }
2106        }
2107        return 0;
2108}
2109
2110static int snd_asihpi_meter_add(struct snd_card_asihpi *asihpi,
2111                                struct hpi_control *hpi_ctl, int subidx)
2112{
2113        struct snd_card *card = asihpi->card;
2114        struct snd_kcontrol_new snd_control;
2115
2116        asihpi_ctl_init(&snd_control, hpi_ctl, "Meter");
2117        snd_control.access =
2118            SNDRV_CTL_ELEM_ACCESS_VOLATILE | SNDRV_CTL_ELEM_ACCESS_READ;
2119        snd_control.info = snd_asihpi_meter_info;
2120        snd_control.get = snd_asihpi_meter_get;
2121
2122        snd_control.index = subidx;
2123
2124        return ctl_add(card, &snd_control, asihpi);
2125}
2126
2127/*------------------------------------------------------------
2128   Multiplexer controls
2129 ------------------------------------------------------------*/
2130static int snd_card_asihpi_mux_count_sources(struct snd_kcontrol *snd_control)
2131{
2132        u32 h_control = snd_control->private_value;
2133        struct hpi_control hpi_ctl;
2134        int s, err;
2135        for (s = 0; s < 32; s++) {
2136                err = hpi_multiplexer_query_source(h_control, s,
2137                                                  &hpi_ctl.
2138                                                  src_node_type,
2139                                                  &hpi_ctl.
2140                                                  src_node_index);
2141                if (err)
2142                        break;
2143        }
2144        return s;
2145}
2146
2147static int snd_asihpi_mux_info(struct snd_kcontrol *kcontrol,
2148                               struct snd_ctl_elem_info *uinfo)
2149{
2150        int err;
2151        u16 src_node_type, src_node_index;
2152        u32 h_control = kcontrol->private_value;
2153
2154        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2155        uinfo->count = 1;
2156        uinfo->value.enumerated.items =
2157            snd_card_asihpi_mux_count_sources(kcontrol);
2158
2159        if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
2160                uinfo->value.enumerated.item =
2161                    uinfo->value.enumerated.items - 1;
2162
2163        err =
2164            hpi_multiplexer_query_source(h_control,
2165                                        uinfo->value.enumerated.item,
2166                                        &src_node_type, &src_node_index);
2167
2168        sprintf(uinfo->value.enumerated.name, "%s %d",
2169                asihpi_src_names[src_node_type - HPI_SOURCENODE_NONE],
2170                src_node_index);
2171        return 0;
2172}
2173
2174static int snd_asihpi_mux_get(struct snd_kcontrol *kcontrol,
2175                              struct snd_ctl_elem_value *ucontrol)
2176{
2177        u32 h_control = kcontrol->private_value;
2178        u16 source_type, source_index;
2179        u16 src_node_type, src_node_index;
2180        int s;
2181
2182        hpi_handle_error(hpi_multiplexer_get_source(h_control,
2183                                &source_type, &source_index));
2184        /* Should cache this search result! */
2185        for (s = 0; s < 256; s++) {
2186                if (hpi_multiplexer_query_source(h_control, s,
2187                                            &src_node_type, &src_node_index))
2188                        break;
2189
2190                if ((source_type == src_node_type)
2191                    && (source_index == src_node_index)) {
2192                        ucontrol->value.enumerated.item[0] = s;
2193                        return 0;
2194                }
2195        }
2196        snd_printd(KERN_WARNING
2197                "Control %x failed to match mux source %hu %hu\n",
2198                h_control, source_type, source_index);
2199        ucontrol->value.enumerated.item[0] = 0;
2200        return 0;
2201}
2202
2203static int snd_asihpi_mux_put(struct snd_kcontrol *kcontrol,
2204                              struct snd_ctl_elem_value *ucontrol)
2205{
2206        int change;
2207        u32 h_control = kcontrol->private_value;
2208        u16 source_type, source_index;
2209        u16 e;
2210
2211        change = 1;
2212
2213        e = hpi_multiplexer_query_source(h_control,
2214                                    ucontrol->value.enumerated.item[0],
2215                                    &source_type, &source_index);
2216        if (!e)
2217                hpi_handle_error(
2218                        hpi_multiplexer_set_source(h_control,
2219                                                source_type, source_index));
2220        return change;
2221}
2222
2223
2224static int  snd_asihpi_mux_add(struct snd_card_asihpi *asihpi,
2225                               struct hpi_control *hpi_ctl)
2226{
2227        struct snd_card *card = asihpi->card;
2228        struct snd_kcontrol_new snd_control;
2229
2230        asihpi_ctl_init(&snd_control, hpi_ctl, "Route");
2231        snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
2232        snd_control.info = snd_asihpi_mux_info;
2233        snd_control.get = snd_asihpi_mux_get;
2234        snd_control.put = snd_asihpi_mux_put;
2235
2236        return ctl_add(card, &snd_control, asihpi);
2237
2238}
2239
2240/*------------------------------------------------------------
2241   Channel mode controls
2242 ------------------------------------------------------------*/
2243static int snd_asihpi_cmode_info(struct snd_kcontrol *kcontrol,
2244                                 struct snd_ctl_elem_info *uinfo)
2245{
2246        static const char * const mode_names[HPI_CHANNEL_MODE_LAST + 1] = {
2247                "invalid",
2248                "Normal", "Swap",
2249                "From Left", "From Right",
2250                "To Left", "To Right"
2251        };
2252
2253        u32 h_control = kcontrol->private_value;
2254        u16 mode;
2255        int i;
2256        u16 mode_map[6];
2257        int valid_modes = 0;
2258
2259        /* HPI channel mode values can be from 1 to 6
2260        Some adapters only support a contiguous subset
2261        */
2262        for (i = 0; i < HPI_CHANNEL_MODE_LAST; i++)
2263                if (!hpi_channel_mode_query_mode(
2264                        h_control, i, &mode)) {
2265                        mode_map[valid_modes] = mode;
2266                        valid_modes++;
2267                        }
2268
2269        if (!valid_modes)
2270                return -EINVAL;
2271
2272        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2273        uinfo->count = 1;
2274        uinfo->value.enumerated.items = valid_modes;
2275
2276        if (uinfo->value.enumerated.item >= valid_modes)
2277                uinfo->value.enumerated.item = valid_modes - 1;
2278
2279        strcpy(uinfo->value.enumerated.name,
2280               mode_names[mode_map[uinfo->value.enumerated.item]]);
2281
2282        return 0;
2283}
2284
2285static int snd_asihpi_cmode_get(struct snd_kcontrol *kcontrol,
2286                                struct snd_ctl_elem_value *ucontrol)
2287{
2288        u32 h_control = kcontrol->private_value;
2289        u16 mode;
2290
2291        if (hpi_channel_mode_get(h_control, &mode))
2292                mode = 1;
2293
2294        ucontrol->value.enumerated.item[0] = mode - 1;
2295
2296        return 0;
2297}
2298
2299static int snd_asihpi_cmode_put(struct snd_kcontrol *kcontrol,
2300                                struct snd_ctl_elem_value *ucontrol)
2301{
2302        int change;
2303        u32 h_control = kcontrol->private_value;
2304
2305        change = 1;
2306
2307        hpi_handle_error(hpi_channel_mode_set(h_control,
2308                           ucontrol->value.enumerated.item[0] + 1));
2309        return change;
2310}
2311
2312
2313static int snd_asihpi_cmode_add(struct snd_card_asihpi *asihpi,
2314                                struct hpi_control *hpi_ctl)
2315{
2316        struct snd_card *card = asihpi->card;
2317        struct snd_kcontrol_new snd_control;
2318
2319        asihpi_ctl_init(&snd_control, hpi_ctl, "Mode");
2320        snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
2321        snd_control.info = snd_asihpi_cmode_info;
2322        snd_control.get = snd_asihpi_cmode_get;
2323        snd_control.put = snd_asihpi_cmode_put;
2324
2325        return ctl_add(card, &snd_control, asihpi);
2326}
2327
2328/*------------------------------------------------------------
2329   Sampleclock source  controls
2330 ------------------------------------------------------------*/
2331static char *sampleclock_sources[MAX_CLOCKSOURCES] = {
2332        "N/A", "Local PLL", "Digital Sync", "Word External", "Word Header",
2333        "SMPTE", "Digital1", "Auto", "Network", "Invalid",
2334        "Prev Module",
2335        "Digital2", "Digital3", "Digital4", "Digital5",
2336        "Digital6", "Digital7", "Digital8"};
2337
2338static int snd_asihpi_clksrc_info(struct snd_kcontrol *kcontrol,
2339                                  struct snd_ctl_elem_info *uinfo)
2340{
2341        struct snd_card_asihpi *asihpi =
2342                        (struct snd_card_asihpi *)(kcontrol->private_data);
2343        struct clk_cache *clkcache = &asihpi->cc;
2344        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2345        uinfo->count = 1;
2346        uinfo->value.enumerated.items = clkcache->count;
2347
2348        if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
2349                uinfo->value.enumerated.item =
2350                                uinfo->value.enumerated.items - 1;
2351
2352        strcpy(uinfo->value.enumerated.name,
2353               clkcache->s[uinfo->value.enumerated.item].name);
2354        return 0;
2355}
2356
2357static int snd_asihpi_clksrc_get(struct snd_kcontrol *kcontrol,
2358                                 struct snd_ctl_elem_value *ucontrol)
2359{
2360        struct snd_card_asihpi *asihpi =
2361                        (struct snd_card_asihpi *)(kcontrol->private_data);
2362        struct clk_cache *clkcache = &asihpi->cc;
2363        u32 h_control = kcontrol->private_value;
2364        u16 source, srcindex = 0;
2365        int i;
2366
2367        ucontrol->value.enumerated.item[0] = 0;
2368        if (hpi_sample_clock_get_source(h_control, &source))
2369                source = 0;
2370
2371        if (source == HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT)
2372                if (hpi_sample_clock_get_source_index(h_control, &srcindex))
2373                        srcindex = 0;
2374
2375        for (i = 0; i < clkcache->count; i++)
2376                if ((clkcache->s[i].source == source) &&
2377                        (clkcache->s[i].index == srcindex))
2378                        break;
2379
2380        ucontrol->value.enumerated.item[0] = i;
2381
2382        return 0;
2383}
2384
2385static int snd_asihpi_clksrc_put(struct snd_kcontrol *kcontrol,
2386                                 struct snd_ctl_elem_value *ucontrol)
2387{
2388        struct snd_card_asihpi *asihpi =
2389                        (struct snd_card_asihpi *)(kcontrol->private_data);
2390        struct clk_cache *clkcache = &asihpi->cc;
2391        unsigned int item;
2392        int change;
2393        u32 h_control = kcontrol->private_value;
2394
2395        change = 1;
2396        item = ucontrol->value.enumerated.item[0];
2397        if (item >= clkcache->count)
2398                item = clkcache->count-1;
2399
2400        hpi_handle_error(hpi_sample_clock_set_source(
2401                                h_control, clkcache->s[item].source));
2402
2403        if (clkcache->s[item].source == HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT)
2404                hpi_handle_error(hpi_sample_clock_set_source_index(
2405                                h_control, clkcache->s[item].index));
2406        return change;
2407}
2408
2409/*------------------------------------------------------------
2410   Clkrate controls
2411 ------------------------------------------------------------*/
2412/* Need to change this to enumerated control with list of rates */
2413static int snd_asihpi_clklocal_info(struct snd_kcontrol *kcontrol,
2414                                   struct snd_ctl_elem_info *uinfo)
2415{
2416        uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2417        uinfo->count = 1;
2418        uinfo->value.integer.min = 8000;
2419        uinfo->value.integer.max = 192000;
2420        uinfo->value.integer.step = 100;
2421
2422        return 0;
2423}
2424
2425static int snd_asihpi_clklocal_get(struct snd_kcontrol *kcontrol,
2426                                  struct snd_ctl_elem_value *ucontrol)
2427{
2428        u32 h_control = kcontrol->private_value;
2429        u32 rate;
2430        u16 e;
2431
2432        e = hpi_sample_clock_get_local_rate(h_control, &rate);
2433        if (!e)
2434                ucontrol->value.integer.value[0] = rate;
2435        else
2436                ucontrol->value.integer.value[0] = 0;
2437        return 0;
2438}
2439
2440static int snd_asihpi_clklocal_put(struct snd_kcontrol *kcontrol,
2441                                  struct snd_ctl_elem_value *ucontrol)
2442{
2443        int change;
2444        u32 h_control = kcontrol->private_value;
2445
2446        /*  change = asihpi->mixer_clkrate[addr][0] != left ||
2447           asihpi->mixer_clkrate[addr][1] != right;
2448         */
2449        change = 1;
2450        hpi_handle_error(hpi_sample_clock_set_local_rate(h_control,
2451                                      ucontrol->value.integer.value[0]));
2452        return change;
2453}
2454
2455static int snd_asihpi_clkrate_info(struct snd_kcontrol *kcontrol,
2456                                   struct snd_ctl_elem_info *uinfo)
2457{
2458        uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2459        uinfo->count = 1;
2460        uinfo->value.integer.min = 8000;
2461        uinfo->value.integer.max = 192000;
2462        uinfo->value.integer.step = 100;
2463
2464        return 0;
2465}
2466
2467static int snd_asihpi_clkrate_get(struct snd_kcontrol *kcontrol,
2468                                  struct snd_ctl_elem_value *ucontrol)
2469{
2470        u32 h_control = kcontrol->private_value;
2471        u32 rate;
2472        u16 e;
2473
2474        e = hpi_sample_clock_get_sample_rate(h_control, &rate);
2475        if (!e)
2476                ucontrol->value.integer.value[0] = rate;
2477        else
2478                ucontrol->value.integer.value[0] = 0;
2479        return 0;
2480}
2481
2482static int snd_asihpi_sampleclock_add(struct snd_card_asihpi *asihpi,
2483                                      struct hpi_control *hpi_ctl)
2484{
2485        struct snd_card *card = asihpi->card;
2486        struct snd_kcontrol_new snd_control;
2487
2488        struct clk_cache *clkcache = &asihpi->cc;
2489        u32 hSC =  hpi_ctl->h_control;
2490        int has_aes_in = 0;
2491        int i, j;
2492        u16 source;
2493
2494        snd_control.private_value = hpi_ctl->h_control;
2495
2496        clkcache->has_local = 0;
2497
2498        for (i = 0; i <= HPI_SAMPLECLOCK_SOURCE_LAST; i++) {
2499                if  (hpi_sample_clock_query_source(hSC,
2500                                i, &source))
2501                        break;
2502                clkcache->s[i].source = source;
2503                clkcache->s[i].index = 0;
2504                clkcache->s[i].name = sampleclock_sources[source];
2505                if (source == HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT)
2506                        has_aes_in = 1;
2507                if (source == HPI_SAMPLECLOCK_SOURCE_LOCAL)
2508                        clkcache->has_local = 1;
2509        }
2510        if (has_aes_in)
2511                /* already will have picked up index 0 above */
2512                for (j = 1; j < 8; j++) {
2513                        if (hpi_sample_clock_query_source_index(hSC,
2514                                j, HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT,
2515                                &source))
2516                                break;
2517                        clkcache->s[i].source =
2518                                HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT;
2519                        clkcache->s[i].index = j;
2520                        clkcache->s[i].name = sampleclock_sources[
2521                                        j+HPI_SAMPLECLOCK_SOURCE_LAST];
2522                        i++;
2523                }
2524        clkcache->count = i;
2525
2526        asihpi_ctl_init(&snd_control, hpi_ctl, "Source");
2527        snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE ;
2528        snd_control.info = snd_asihpi_clksrc_info;
2529        snd_control.get = snd_asihpi_clksrc_get;
2530        snd_control.put = snd_asihpi_clksrc_put;
2531        if (ctl_add(card, &snd_control, asihpi) < 0)
2532                return -EINVAL;
2533
2534
2535        if (clkcache->has_local) {
2536                asihpi_ctl_init(&snd_control, hpi_ctl, "Localrate");
2537                snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE ;
2538                snd_control.info = snd_asihpi_clklocal_info;
2539                snd_control.get = snd_asihpi_clklocal_get;
2540                snd_control.put = snd_asihpi_clklocal_put;
2541
2542
2543                if (ctl_add(card, &snd_control, asihpi) < 0)
2544                        return -EINVAL;
2545        }
2546
2547        asihpi_ctl_init(&snd_control, hpi_ctl, "Rate");
2548        snd_control.access =
2549            SNDRV_CTL_ELEM_ACCESS_VOLATILE | SNDRV_CTL_ELEM_ACCESS_READ;
2550        snd_control.info = snd_asihpi_clkrate_info;
2551        snd_control.get = snd_asihpi_clkrate_get;
2552
2553        return ctl_add(card, &snd_control, asihpi);
2554}
2555/*------------------------------------------------------------
2556   Mixer
2557 ------------------------------------------------------------*/
2558
2559static int snd_card_asihpi_mixer_new(struct snd_card_asihpi *asihpi)
2560{
2561        struct snd_card *card;
2562        unsigned int idx = 0;
2563        unsigned int subindex = 0;
2564        int err;
2565        struct hpi_control hpi_ctl, prev_ctl;
2566
2567        if (snd_BUG_ON(!asihpi))
2568                return -EINVAL;
2569        card = asihpi->card;
2570        strcpy(card->mixername, "Asihpi Mixer");
2571
2572        err =
2573            hpi_mixer_open(asihpi->hpi->adapter->index,
2574                          &asihpi->h_mixer);
2575        hpi_handle_error(err);
2576        if (err)
2577                return -err;
2578
2579        memset(&prev_ctl, 0, sizeof(prev_ctl));
2580        prev_ctl.control_type = -1;
2581
2582        for (idx = 0; idx < 2000; idx++) {
2583                err = hpi_mixer_get_control_by_index(
2584                                asihpi->h_mixer,
2585                                idx,
2586                                &hpi_ctl.src_node_type,
2587                                &hpi_ctl.src_node_index,
2588                                &hpi_ctl.dst_node_type,
2589                                &hpi_ctl.dst_node_index,
2590                                &hpi_ctl.control_type,
2591                                &hpi_ctl.h_control);
2592                if (err) {
2593                        if (err == HPI_ERROR_CONTROL_DISABLED) {
2594                                if (mixer_dump)
2595                                        snd_printk(KERN_INFO
2596                                                   "Disabled HPI Control(%d)\n",
2597                                                   idx);
2598                                continue;
2599                        } else
2600                                break;
2601
2602                }
2603
2604                hpi_ctl.src_node_type -= HPI_SOURCENODE_NONE;
2605                hpi_ctl.dst_node_type -= HPI_DESTNODE_NONE;
2606
2607                /* ASI50xx in SSX mode has multiple meters on the same node.
2608                   Use subindex to create distinct ALSA controls
2609                   for any duplicated controls.
2610                */
2611                if ((hpi_ctl.control_type == prev_ctl.control_type) &&
2612                    (hpi_ctl.src_node_type == prev_ctl.src_node_type) &&
2613                    (hpi_ctl.src_node_index == prev_ctl.src_node_index) &&
2614                    (hpi_ctl.dst_node_type == prev_ctl.dst_node_type) &&
2615                    (hpi_ctl.dst_node_index == prev_ctl.dst_node_index))
2616                        subindex++;
2617                else
2618                        subindex = 0;
2619
2620                prev_ctl = hpi_ctl;
2621
2622                switch (hpi_ctl.control_type) {
2623                case HPI_CONTROL_VOLUME:
2624                        err = snd_asihpi_volume_add(asihpi, &hpi_ctl);
2625                        break;
2626                case HPI_CONTROL_LEVEL:
2627                        err = snd_asihpi_level_add(asihpi, &hpi_ctl);
2628                        break;
2629                case HPI_CONTROL_MULTIPLEXER:
2630                        err = snd_asihpi_mux_add(asihpi, &hpi_ctl);
2631                        break;
2632                case HPI_CONTROL_CHANNEL_MODE:
2633                        err = snd_asihpi_cmode_add(asihpi, &hpi_ctl);
2634                        break;
2635                case HPI_CONTROL_METER:
2636                        err = snd_asihpi_meter_add(asihpi, &hpi_ctl, subindex);
2637                        break;
2638                case HPI_CONTROL_SAMPLECLOCK:
2639                        err = snd_asihpi_sampleclock_add(
2640                                                asihpi, &hpi_ctl);
2641                        break;
2642                case HPI_CONTROL_CONNECTION:    /* ignore these */
2643                        continue;
2644                case HPI_CONTROL_TUNER:
2645                        err = snd_asihpi_tuner_add(asihpi, &hpi_ctl);
2646                        break;
2647                case HPI_CONTROL_AESEBU_TRANSMITTER:
2648                        err = snd_asihpi_aesebu_tx_add(asihpi, &hpi_ctl);
2649                        break;
2650                case HPI_CONTROL_AESEBU_RECEIVER:
2651                        err = snd_asihpi_aesebu_rx_add(asihpi, &hpi_ctl);
2652                        break;
2653                case HPI_CONTROL_VOX:
2654                case HPI_CONTROL_BITSTREAM:
2655                case HPI_CONTROL_MICROPHONE:
2656                case HPI_CONTROL_PARAMETRIC_EQ:
2657                case HPI_CONTROL_COMPANDER:
2658                default:
2659                        if (mixer_dump)
2660                                snd_printk(KERN_INFO
2661                                        "Untranslated HPI Control"
2662                                        "(%d) %d %d %d %d %d\n",
2663                                        idx,
2664                                        hpi_ctl.control_type,
2665                                        hpi_ctl.src_node_type,
2666                                        hpi_ctl.src_node_index,
2667                                        hpi_ctl.dst_node_type,
2668                                        hpi_ctl.dst_node_index);
2669                        continue;
2670                }
2671                if (err < 0)
2672                        return err;
2673        }
2674        if (HPI_ERROR_INVALID_OBJ_INDEX != err)
2675                hpi_handle_error(err);
2676
2677        snd_printk(KERN_INFO "%d mixer controls found\n", idx);
2678
2679        return 0;
2680}
2681
2682/*------------------------------------------------------------
2683   /proc interface
2684 ------------------------------------------------------------*/
2685
2686static void
2687snd_asihpi_proc_read(struct snd_info_entry *entry,
2688                        struct snd_info_buffer *buffer)
2689{
2690        struct snd_card_asihpi *asihpi = entry->private_data;
2691        u32 h_control;
2692        u32 rate = 0;
2693        u16 source = 0;
2694
2695        u16 num_outstreams;
2696        u16 num_instreams;
2697        u16 version;
2698        u32 serial_number;
2699        u16 type;
2700
2701        int err;
2702
2703        snd_iprintf(buffer, "ASIHPI driver proc file\n");
2704
2705        hpi_handle_error(hpi_adapter_get_info(asihpi->hpi->adapter->index,
2706                        &num_outstreams, &num_instreams,
2707                        &version, &serial_number, &type));
2708
2709        snd_iprintf(buffer,
2710                        "Adapter type ASI%4X\nHardware Index %d\n"
2711                        "%d outstreams\n%d instreams\n",
2712                        type, asihpi->hpi->adapter->index,
2713                        num_outstreams, num_instreams);
2714
2715        snd_iprintf(buffer,
2716                "Serial#%d\nHardware version %c%d\nDSP code version %03d\n",
2717                serial_number, ((version >> 3) & 0xf) + 'A', version & 0x7,
2718                ((version >> 13) * 100) + ((version >> 7) & 0x3f));
2719
2720        err = hpi_mixer_get_control(asihpi->h_mixer,
2721                                  HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
2722                                  HPI_CONTROL_SAMPLECLOCK, &h_control);
2723
2724        if (!err) {
2725                err = hpi_sample_clock_get_sample_rate(h_control, &rate);
2726                err += hpi_sample_clock_get_source(h_control, &source);
2727
2728                if (!err)
2729                        snd_iprintf(buffer, "Sample Clock %dHz, source %s\n",
2730                        rate, sampleclock_sources[source]);
2731        }
2732}
2733
2734static void snd_asihpi_proc_init(struct snd_card_asihpi *asihpi)
2735{
2736        struct snd_info_entry *entry;
2737
2738        if (!snd_card_proc_new(asihpi->card, "info", &entry))
2739                snd_info_set_text_ops(entry, asihpi, snd_asihpi_proc_read);
2740}
2741
2742/*------------------------------------------------------------
2743   HWDEP
2744 ------------------------------------------------------------*/
2745
2746static int snd_asihpi_hpi_open(struct snd_hwdep *hw, struct file *file)
2747{
2748        if (enable_hpi_hwdep)
2749                return 0;
2750        else
2751                return -ENODEV;
2752
2753}
2754
2755static int snd_asihpi_hpi_release(struct snd_hwdep *hw, struct file *file)
2756{
2757        if (enable_hpi_hwdep)
2758                return asihpi_hpi_release(file);
2759        else
2760                return -ENODEV;
2761}
2762
2763static int snd_asihpi_hpi_ioctl(struct snd_hwdep *hw, struct file *file,
2764                                unsigned int cmd, unsigned long arg)
2765{
2766        if (enable_hpi_hwdep)
2767                return asihpi_hpi_ioctl(file, cmd, arg);
2768        else
2769                return -ENODEV;
2770}
2771
2772
2773/* results in /dev/snd/hwC#D0 file for each card with index #
2774   also /proc/asound/hwdep will contain '#-00: asihpi (HPI) for each card'
2775*/
2776static int snd_asihpi_hpi_new(struct snd_card_asihpi *asihpi,
2777                              int device, struct snd_hwdep **rhwdep)
2778{
2779        struct snd_hwdep *hw;
2780        int err;
2781
2782        if (rhwdep)
2783                *rhwdep = NULL;
2784        err = snd_hwdep_new(asihpi->card, "HPI", device, &hw);
2785        if (err < 0)
2786                return err;
2787        strcpy(hw->name, "asihpi (HPI)");
2788        hw->iface = SNDRV_HWDEP_IFACE_LAST;
2789        hw->ops.open = snd_asihpi_hpi_open;
2790        hw->ops.ioctl = snd_asihpi_hpi_ioctl;
2791        hw->ops.release = snd_asihpi_hpi_release;
2792        hw->private_data = asihpi;
2793        if (rhwdep)
2794                *rhwdep = hw;
2795        return 0;
2796}
2797
2798/*------------------------------------------------------------
2799   CARD
2800 ------------------------------------------------------------*/
2801static int snd_asihpi_probe(struct pci_dev *pci_dev,
2802                            const struct pci_device_id *pci_id)
2803{
2804        int err;
2805        struct hpi_adapter *hpi;
2806        struct snd_card *card;
2807        struct snd_card_asihpi *asihpi;
2808
2809        u32 h_control;
2810        u32 h_stream;
2811        u32 adapter_index;
2812
2813        static int dev;
2814        if (dev >= SNDRV_CARDS)
2815                return -ENODEV;
2816
2817        /* Should this be enable[hpi->index] ? */
2818        if (!enable[dev]) {
2819                dev++;
2820                return -ENOENT;
2821        }
2822
2823        /* Initialise low-level HPI driver */
2824        err = asihpi_adapter_probe(pci_dev, pci_id);
2825        if (err < 0)
2826                return err;
2827
2828        hpi = pci_get_drvdata(pci_dev);
2829        adapter_index = hpi->adapter->index;
2830        /* first try to give the card the same index as its hardware index */
2831        err = snd_card_new(&pci_dev->dev, adapter_index, id[adapter_index],
2832                           THIS_MODULE, sizeof(struct snd_card_asihpi), &card);
2833        if (err < 0) {
2834                /* if that fails, try the default index==next available */
2835                err = snd_card_new(&pci_dev->dev, index[dev], id[dev],
2836                                   THIS_MODULE, sizeof(struct snd_card_asihpi),
2837                                   &card);
2838                if (err < 0)
2839                        return err;
2840                snd_printk(KERN_WARNING
2841                        "**** WARNING **** Adapter index %d->ALSA index %d\n",
2842                        adapter_index, card->number);
2843        }
2844
2845        asihpi = card->private_data;
2846        asihpi->card = card;
2847        asihpi->pci = pci_dev;
2848        asihpi->hpi = hpi;
2849
2850        snd_printk(KERN_INFO "adapter ID=%4X index=%d\n",
2851                        asihpi->hpi->adapter->type, adapter_index);
2852
2853        err = hpi_adapter_get_property(adapter_index,
2854                HPI_ADAPTER_PROPERTY_CAPS1,
2855                NULL, &asihpi->support_grouping);
2856        if (err)
2857                asihpi->support_grouping = 0;
2858
2859        err = hpi_adapter_get_property(adapter_index,
2860                HPI_ADAPTER_PROPERTY_CAPS2,
2861                &asihpi->support_mrx, NULL);
2862        if (err)
2863                asihpi->support_mrx = 0;
2864
2865        err = hpi_adapter_get_property(adapter_index,
2866                HPI_ADAPTER_PROPERTY_INTERVAL,
2867                NULL, &asihpi->update_interval_frames);
2868        if (err)
2869                asihpi->update_interval_frames = 512;
2870
2871        if (!asihpi->can_dma)
2872                asihpi->update_interval_frames *= 2;
2873
2874        hpi_handle_error(hpi_instream_open(adapter_index,
2875                             0, &h_stream));
2876
2877        err = hpi_instream_host_buffer_free(h_stream);
2878        asihpi->can_dma = (!err);
2879
2880        hpi_handle_error(hpi_instream_close(h_stream));
2881
2882        err = hpi_adapter_get_property(adapter_index,
2883                HPI_ADAPTER_PROPERTY_CURCHANNELS,
2884                &asihpi->in_max_chans, &asihpi->out_max_chans);
2885        if (err) {
2886                asihpi->in_max_chans = 2;
2887                asihpi->out_max_chans = 2;
2888        }
2889
2890        if (asihpi->out_max_chans > 2) { /* assume LL mode */
2891                asihpi->out_min_chans = asihpi->out_max_chans;
2892                asihpi->in_min_chans = asihpi->in_max_chans;
2893                asihpi->support_grouping = 0;
2894        } else {
2895                asihpi->out_min_chans = 1;
2896                asihpi->in_min_chans = 1;
2897        }
2898
2899        snd_printk(KERN_INFO "Has dma:%d, grouping:%d, mrx:%d\n",
2900                        asihpi->can_dma,
2901                        asihpi->support_grouping,
2902                        asihpi->support_mrx
2903              );
2904
2905        err = snd_card_asihpi_pcm_new(asihpi, 0);
2906        if (err < 0) {
2907                snd_printk(KERN_ERR "pcm_new failed\n");
2908                goto __nodev;
2909        }
2910        err = snd_card_asihpi_mixer_new(asihpi);
2911        if (err < 0) {
2912                snd_printk(KERN_ERR "mixer_new failed\n");
2913                goto __nodev;
2914        }
2915
2916        err = hpi_mixer_get_control(asihpi->h_mixer,
2917                                  HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
2918                                  HPI_CONTROL_SAMPLECLOCK, &h_control);
2919
2920        if (!err)
2921                err = hpi_sample_clock_set_local_rate(
2922                        h_control, adapter_fs);
2923
2924        snd_asihpi_proc_init(asihpi);
2925
2926        /* always create, can be enabled or disabled dynamically
2927            by enable_hwdep  module param*/
2928        snd_asihpi_hpi_new(asihpi, 0, NULL);
2929
2930        strcpy(card->driver, "ASIHPI");
2931
2932        sprintf(card->shortname, "AudioScience ASI%4X",
2933                        asihpi->hpi->adapter->type);
2934        sprintf(card->longname, "%s %i",
2935                        card->shortname, adapter_index);
2936        err = snd_card_register(card);
2937
2938        if (!err) {
2939                hpi->snd_card = card;
2940                dev++;
2941                return 0;
2942        }
2943__nodev:
2944        snd_card_free(card);
2945        snd_printk(KERN_ERR "snd_asihpi_probe error %d\n", err);
2946        return err;
2947
2948}
2949
2950static void snd_asihpi_remove(struct pci_dev *pci_dev)
2951{
2952        struct hpi_adapter *hpi = pci_get_drvdata(pci_dev);
2953        snd_card_free(hpi->snd_card);
2954        hpi->snd_card = NULL;
2955        asihpi_adapter_remove(pci_dev);
2956}
2957
2958static DEFINE_PCI_DEVICE_TABLE(asihpi_pci_tbl) = {
2959        {HPI_PCI_VENDOR_ID_TI, HPI_PCI_DEV_ID_DSP6205,
2960                HPI_PCI_VENDOR_ID_AUDIOSCIENCE, PCI_ANY_ID, 0, 0,
2961                (kernel_ulong_t)HPI_6205},
2962        {HPI_PCI_VENDOR_ID_TI, HPI_PCI_DEV_ID_PCI2040,
2963                HPI_PCI_VENDOR_ID_AUDIOSCIENCE, PCI_ANY_ID, 0, 0,
2964                (kernel_ulong_t)HPI_6000},
2965        {0,}
2966};
2967MODULE_DEVICE_TABLE(pci, asihpi_pci_tbl);
2968
2969static struct pci_driver driver = {
2970        .name = KBUILD_MODNAME,
2971        .id_table = asihpi_pci_tbl,
2972        .probe = snd_asihpi_probe,
2973        .remove = snd_asihpi_remove,
2974#ifdef CONFIG_PM_SLEEP
2975/*      .suspend = snd_asihpi_suspend,
2976        .resume = snd_asihpi_resume, */
2977#endif
2978};
2979
2980static int __init snd_asihpi_init(void)
2981{
2982        asihpi_init();
2983        return pci_register_driver(&driver);
2984}
2985
2986static void __exit snd_asihpi_exit(void)
2987{
2988
2989        pci_unregister_driver(&driver);
2990        asihpi_exit();
2991}
2992
2993module_init(snd_asihpi_init)
2994module_exit(snd_asihpi_exit)
2995
2996