qemu/hw/audio/hda-codec.c
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   1/*
   2 * Copyright (C) 2010 Red Hat, Inc.
   3 *
   4 * written by Gerd Hoffmann <kraxel@redhat.com>
   5 *
   6 * This program is free software; you can redistribute it and/or
   7 * modify it under the terms of the GNU General Public License as
   8 * published by the Free Software Foundation; either version 2 or
   9 * (at your option) version 3 of the License.
  10 *
  11 * This program is distributed in the hope that it will be useful,
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 * GNU General Public License for more details.
  15 *
  16 * You should have received a copy of the GNU General Public License
  17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20#include "qemu/osdep.h"
  21#include "hw/pci/pci.h"
  22#include "hw/qdev-properties.h"
  23#include "intel-hda.h"
  24#include "migration/vmstate.h"
  25#include "qemu/module.h"
  26#include "intel-hda-defs.h"
  27#include "audio/audio.h"
  28#include "trace.h"
  29
  30/* -------------------------------------------------------------------------- */
  31
  32typedef struct desc_param {
  33    uint32_t id;
  34    uint32_t val;
  35} desc_param;
  36
  37typedef struct desc_node {
  38    uint32_t nid;
  39    const char *name;
  40    const desc_param *params;
  41    uint32_t nparams;
  42    uint32_t config;
  43    uint32_t pinctl;
  44    uint32_t *conn;
  45    uint32_t stindex;
  46} desc_node;
  47
  48typedef struct desc_codec {
  49    const char *name;
  50    uint32_t iid;
  51    const desc_node *nodes;
  52    uint32_t nnodes;
  53} desc_codec;
  54
  55static const desc_param* hda_codec_find_param(const desc_node *node, uint32_t id)
  56{
  57    int i;
  58
  59    for (i = 0; i < node->nparams; i++) {
  60        if (node->params[i].id == id) {
  61            return &node->params[i];
  62        }
  63    }
  64    return NULL;
  65}
  66
  67static const desc_node* hda_codec_find_node(const desc_codec *codec, uint32_t nid)
  68{
  69    int i;
  70
  71    for (i = 0; i < codec->nnodes; i++) {
  72        if (codec->nodes[i].nid == nid) {
  73            return &codec->nodes[i];
  74        }
  75    }
  76    return NULL;
  77}
  78
  79static void hda_codec_parse_fmt(uint32_t format, struct audsettings *as)
  80{
  81    if (format & AC_FMT_TYPE_NON_PCM) {
  82        return;
  83    }
  84
  85    as->freq = (format & AC_FMT_BASE_44K) ? 44100 : 48000;
  86
  87    switch ((format & AC_FMT_MULT_MASK) >> AC_FMT_MULT_SHIFT) {
  88    case 1: as->freq *= 2; break;
  89    case 2: as->freq *= 3; break;
  90    case 3: as->freq *= 4; break;
  91    }
  92
  93    switch ((format & AC_FMT_DIV_MASK) >> AC_FMT_DIV_SHIFT) {
  94    case 1: as->freq /= 2; break;
  95    case 2: as->freq /= 3; break;
  96    case 3: as->freq /= 4; break;
  97    case 4: as->freq /= 5; break;
  98    case 5: as->freq /= 6; break;
  99    case 6: as->freq /= 7; break;
 100    case 7: as->freq /= 8; break;
 101    }
 102
 103    switch (format & AC_FMT_BITS_MASK) {
 104    case AC_FMT_BITS_8:  as->fmt = AUDIO_FORMAT_S8;  break;
 105    case AC_FMT_BITS_16: as->fmt = AUDIO_FORMAT_S16; break;
 106    case AC_FMT_BITS_32: as->fmt = AUDIO_FORMAT_S32; break;
 107    }
 108
 109    as->nchannels = ((format & AC_FMT_CHAN_MASK) >> AC_FMT_CHAN_SHIFT) + 1;
 110}
 111
 112/* -------------------------------------------------------------------------- */
 113/*
 114 * HDA codec descriptions
 115 */
 116
 117/* some defines */
 118
 119#define QEMU_HDA_ID_VENDOR  0x1af4
 120#define QEMU_HDA_PCM_FORMATS (AC_SUPPCM_BITS_16 |       \
 121                              0x1fc /* 16 -> 96 kHz */)
 122#define QEMU_HDA_AMP_NONE    (0)
 123#define QEMU_HDA_AMP_STEPS   0x4a
 124
 125#define   PARAM mixemu
 126#define   HDA_MIXER
 127#include "hda-codec-common.h"
 128
 129#define   PARAM nomixemu
 130#include  "hda-codec-common.h"
 131
 132#define HDA_TIMER_TICKS (SCALE_MS)
 133#define B_SIZE sizeof(st->buf)
 134#define B_MASK (sizeof(st->buf) - 1)
 135
 136/* -------------------------------------------------------------------------- */
 137
 138static const char *fmt2name[] = {
 139    [ AUDIO_FORMAT_U8  ] = "PCM-U8",
 140    [ AUDIO_FORMAT_S8  ] = "PCM-S8",
 141    [ AUDIO_FORMAT_U16 ] = "PCM-U16",
 142    [ AUDIO_FORMAT_S16 ] = "PCM-S16",
 143    [ AUDIO_FORMAT_U32 ] = "PCM-U32",
 144    [ AUDIO_FORMAT_S32 ] = "PCM-S32",
 145};
 146
 147typedef struct HDAAudioState HDAAudioState;
 148typedef struct HDAAudioStream HDAAudioStream;
 149
 150struct HDAAudioStream {
 151    HDAAudioState *state;
 152    const desc_node *node;
 153    bool output, running;
 154    uint32_t stream;
 155    uint32_t channel;
 156    uint32_t format;
 157    uint32_t gain_left, gain_right;
 158    bool mute_left, mute_right;
 159    struct audsettings as;
 160    union {
 161        SWVoiceIn *in;
 162        SWVoiceOut *out;
 163    } voice;
 164    uint8_t compat_buf[HDA_BUFFER_SIZE];
 165    uint32_t compat_bpos;
 166    uint8_t buf[8192]; /* size must be power of two */
 167    int64_t rpos;
 168    int64_t wpos;
 169    QEMUTimer *buft;
 170    int64_t buft_start;
 171};
 172
 173#define TYPE_HDA_AUDIO "hda-audio"
 174#define HDA_AUDIO(obj) OBJECT_CHECK(HDAAudioState, (obj), TYPE_HDA_AUDIO)
 175
 176struct HDAAudioState {
 177    HDACodecDevice hda;
 178    const char *name;
 179
 180    QEMUSoundCard card;
 181    const desc_codec *desc;
 182    HDAAudioStream st[4];
 183    bool running_compat[16];
 184    bool running_real[2 * 16];
 185
 186    /* properties */
 187    uint32_t debug;
 188    bool     mixer;
 189    bool     use_timer;
 190};
 191
 192static inline int64_t hda_bytes_per_second(HDAAudioStream *st)
 193{
 194    return 2LL * st->as.nchannels * st->as.freq;
 195}
 196
 197static inline void hda_timer_sync_adjust(HDAAudioStream *st, int64_t target_pos)
 198{
 199    int64_t limit = B_SIZE / 8;
 200    int64_t corr = 0;
 201
 202    if (target_pos > limit) {
 203        corr = HDA_TIMER_TICKS;
 204    }
 205    if (target_pos < -limit) {
 206        corr = -HDA_TIMER_TICKS;
 207    }
 208    if (target_pos < -(2 * limit)) {
 209        corr = -(4 * HDA_TIMER_TICKS);
 210    }
 211    if (corr == 0) {
 212        return;
 213    }
 214
 215    trace_hda_audio_adjust(st->node->name, target_pos);
 216    st->buft_start += corr;
 217}
 218
 219static void hda_audio_input_timer(void *opaque)
 220{
 221    HDAAudioStream *st = opaque;
 222
 223    int64_t now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
 224
 225    int64_t buft_start = st->buft_start;
 226    int64_t wpos = st->wpos;
 227    int64_t rpos = st->rpos;
 228
 229    int64_t wanted_rpos = hda_bytes_per_second(st) * (now - buft_start)
 230                          / NANOSECONDS_PER_SECOND;
 231    wanted_rpos &= -4; /* IMPORTANT! clip to frames */
 232
 233    if (wanted_rpos <= rpos) {
 234        /* we already transmitted the data */
 235        goto out_timer;
 236    }
 237
 238    int64_t to_transfer = MIN(wpos - rpos, wanted_rpos - rpos);
 239    while (to_transfer) {
 240        uint32_t start = (rpos & B_MASK);
 241        uint32_t chunk = MIN(B_SIZE - start, to_transfer);
 242        int rc = hda_codec_xfer(
 243                &st->state->hda, st->stream, false, st->buf + start, chunk);
 244        if (!rc) {
 245            break;
 246        }
 247        rpos += chunk;
 248        to_transfer -= chunk;
 249        st->rpos += chunk;
 250    }
 251
 252out_timer:
 253
 254    if (st->running) {
 255        timer_mod_anticipate_ns(st->buft, now + HDA_TIMER_TICKS);
 256    }
 257}
 258
 259static void hda_audio_input_cb(void *opaque, int avail)
 260{
 261    HDAAudioStream *st = opaque;
 262
 263    int64_t wpos = st->wpos;
 264    int64_t rpos = st->rpos;
 265
 266    int64_t to_transfer = MIN(B_SIZE - (wpos - rpos), avail);
 267
 268    hda_timer_sync_adjust(st, -((wpos - rpos) + to_transfer - (B_SIZE >> 1)));
 269
 270    while (to_transfer) {
 271        uint32_t start = (uint32_t) (wpos & B_MASK);
 272        uint32_t chunk = (uint32_t) MIN(B_SIZE - start, to_transfer);
 273        uint32_t read = AUD_read(st->voice.in, st->buf + start, chunk);
 274        wpos += read;
 275        to_transfer -= read;
 276        st->wpos += read;
 277        if (chunk != read) {
 278            break;
 279        }
 280    }
 281}
 282
 283static void hda_audio_output_timer(void *opaque)
 284{
 285    HDAAudioStream *st = opaque;
 286
 287    int64_t now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
 288
 289    int64_t buft_start = st->buft_start;
 290    int64_t wpos = st->wpos;
 291    int64_t rpos = st->rpos;
 292
 293    int64_t wanted_wpos = hda_bytes_per_second(st) * (now - buft_start)
 294                          / NANOSECONDS_PER_SECOND;
 295    wanted_wpos &= -4; /* IMPORTANT! clip to frames */
 296
 297    if (wanted_wpos <= wpos) {
 298        /* we already received the data */
 299        goto out_timer;
 300    }
 301
 302    int64_t to_transfer = MIN(B_SIZE - (wpos - rpos), wanted_wpos - wpos);
 303    while (to_transfer) {
 304        uint32_t start = (wpos & B_MASK);
 305        uint32_t chunk = MIN(B_SIZE - start, to_transfer);
 306        int rc = hda_codec_xfer(
 307                &st->state->hda, st->stream, true, st->buf + start, chunk);
 308        if (!rc) {
 309            break;
 310        }
 311        wpos += chunk;
 312        to_transfer -= chunk;
 313        st->wpos += chunk;
 314    }
 315
 316out_timer:
 317
 318    if (st->running) {
 319        timer_mod_anticipate_ns(st->buft, now + HDA_TIMER_TICKS);
 320    }
 321}
 322
 323static void hda_audio_output_cb(void *opaque, int avail)
 324{
 325    HDAAudioStream *st = opaque;
 326
 327    int64_t wpos = st->wpos;
 328    int64_t rpos = st->rpos;
 329
 330    int64_t to_transfer = MIN(wpos - rpos, avail);
 331
 332    if (wpos - rpos == B_SIZE) {
 333        /* drop buffer, reset timer adjust */
 334        st->rpos = 0;
 335        st->wpos = 0;
 336        st->buft_start = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
 337        trace_hda_audio_overrun(st->node->name);
 338        return;
 339    }
 340
 341    hda_timer_sync_adjust(st, (wpos - rpos) - to_transfer - (B_SIZE >> 1));
 342
 343    while (to_transfer) {
 344        uint32_t start = (uint32_t) (rpos & B_MASK);
 345        uint32_t chunk = (uint32_t) MIN(B_SIZE - start, to_transfer);
 346        uint32_t written = AUD_write(st->voice.out, st->buf + start, chunk);
 347        rpos += written;
 348        to_transfer -= written;
 349        st->rpos += written;
 350        if (chunk != written) {
 351            break;
 352        }
 353    }
 354}
 355
 356static void hda_audio_compat_input_cb(void *opaque, int avail)
 357{
 358    HDAAudioStream *st = opaque;
 359    int recv = 0;
 360    int len;
 361    bool rc;
 362
 363    while (avail - recv >= sizeof(st->compat_buf)) {
 364        if (st->compat_bpos != sizeof(st->compat_buf)) {
 365            len = AUD_read(st->voice.in, st->compat_buf + st->compat_bpos,
 366                           sizeof(st->compat_buf) - st->compat_bpos);
 367            st->compat_bpos += len;
 368            recv += len;
 369            if (st->compat_bpos != sizeof(st->compat_buf)) {
 370                break;
 371            }
 372        }
 373        rc = hda_codec_xfer(&st->state->hda, st->stream, false,
 374                            st->compat_buf, sizeof(st->compat_buf));
 375        if (!rc) {
 376            break;
 377        }
 378        st->compat_bpos = 0;
 379    }
 380}
 381
 382static void hda_audio_compat_output_cb(void *opaque, int avail)
 383{
 384    HDAAudioStream *st = opaque;
 385    int sent = 0;
 386    int len;
 387    bool rc;
 388
 389    while (avail - sent >= sizeof(st->compat_buf)) {
 390        if (st->compat_bpos == sizeof(st->compat_buf)) {
 391            rc = hda_codec_xfer(&st->state->hda, st->stream, true,
 392                                st->compat_buf, sizeof(st->compat_buf));
 393            if (!rc) {
 394                break;
 395            }
 396            st->compat_bpos = 0;
 397        }
 398        len = AUD_write(st->voice.out, st->compat_buf + st->compat_bpos,
 399                        sizeof(st->compat_buf) - st->compat_bpos);
 400        st->compat_bpos += len;
 401        sent += len;
 402        if (st->compat_bpos != sizeof(st->compat_buf)) {
 403            break;
 404        }
 405    }
 406}
 407
 408static void hda_audio_set_running(HDAAudioStream *st, bool running)
 409{
 410    if (st->node == NULL) {
 411        return;
 412    }
 413    if (st->running == running) {
 414        return;
 415    }
 416    st->running = running;
 417    trace_hda_audio_running(st->node->name, st->stream, st->running);
 418    if (st->state->use_timer) {
 419        if (running) {
 420            int64_t now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
 421            st->rpos = 0;
 422            st->wpos = 0;
 423            st->buft_start = now;
 424            timer_mod_anticipate_ns(st->buft, now + HDA_TIMER_TICKS);
 425        } else {
 426            timer_del(st->buft);
 427        }
 428    }
 429    if (st->output) {
 430        AUD_set_active_out(st->voice.out, st->running);
 431    } else {
 432        AUD_set_active_in(st->voice.in, st->running);
 433    }
 434}
 435
 436static void hda_audio_set_amp(HDAAudioStream *st)
 437{
 438    bool muted;
 439    uint32_t left, right;
 440
 441    if (st->node == NULL) {
 442        return;
 443    }
 444
 445    muted = st->mute_left && st->mute_right;
 446    left  = st->mute_left  ? 0 : st->gain_left;
 447    right = st->mute_right ? 0 : st->gain_right;
 448
 449    left = left * 255 / QEMU_HDA_AMP_STEPS;
 450    right = right * 255 / QEMU_HDA_AMP_STEPS;
 451
 452    if (!st->state->mixer) {
 453        return;
 454    }
 455    if (st->output) {
 456        AUD_set_volume_out(st->voice.out, muted, left, right);
 457    } else {
 458        AUD_set_volume_in(st->voice.in, muted, left, right);
 459    }
 460}
 461
 462static void hda_audio_setup(HDAAudioStream *st)
 463{
 464    bool use_timer = st->state->use_timer;
 465    audio_callback_fn cb;
 466
 467    if (st->node == NULL) {
 468        return;
 469    }
 470
 471    trace_hda_audio_format(st->node->name, st->as.nchannels,
 472                           fmt2name[st->as.fmt], st->as.freq);
 473
 474    if (st->output) {
 475        if (use_timer) {
 476            cb = hda_audio_output_cb;
 477            st->buft = timer_new_ns(QEMU_CLOCK_VIRTUAL,
 478                                    hda_audio_output_timer, st);
 479        } else {
 480            cb = hda_audio_compat_output_cb;
 481        }
 482        st->voice.out = AUD_open_out(&st->state->card, st->voice.out,
 483                                     st->node->name, st, cb, &st->as);
 484    } else {
 485        if (use_timer) {
 486            cb = hda_audio_input_cb;
 487            st->buft = timer_new_ns(QEMU_CLOCK_VIRTUAL,
 488                                    hda_audio_input_timer, st);
 489        } else {
 490            cb = hda_audio_compat_input_cb;
 491        }
 492        st->voice.in = AUD_open_in(&st->state->card, st->voice.in,
 493                                   st->node->name, st, cb, &st->as);
 494    }
 495}
 496
 497static void hda_audio_command(HDACodecDevice *hda, uint32_t nid, uint32_t data)
 498{
 499    HDAAudioState *a = HDA_AUDIO(hda);
 500    HDAAudioStream *st;
 501    const desc_node *node = NULL;
 502    const desc_param *param;
 503    uint32_t verb, payload, response, count, shift;
 504
 505    if ((data & 0x70000) == 0x70000) {
 506        /* 12/8 id/payload */
 507        verb = (data >> 8) & 0xfff;
 508        payload = data & 0x00ff;
 509    } else {
 510        /* 4/16 id/payload */
 511        verb = (data >> 8) & 0xf00;
 512        payload = data & 0xffff;
 513    }
 514
 515    node = hda_codec_find_node(a->desc, nid);
 516    if (node == NULL) {
 517        goto fail;
 518    }
 519    dprint(a, 2, "%s: nid %d (%s), verb 0x%x, payload 0x%x\n",
 520           __func__, nid, node->name, verb, payload);
 521
 522    switch (verb) {
 523    /* all nodes */
 524    case AC_VERB_PARAMETERS:
 525        param = hda_codec_find_param(node, payload);
 526        if (param == NULL) {
 527            goto fail;
 528        }
 529        hda_codec_response(hda, true, param->val);
 530        break;
 531    case AC_VERB_GET_SUBSYSTEM_ID:
 532        hda_codec_response(hda, true, a->desc->iid);
 533        break;
 534
 535    /* all functions */
 536    case AC_VERB_GET_CONNECT_LIST:
 537        param = hda_codec_find_param(node, AC_PAR_CONNLIST_LEN);
 538        count = param ? param->val : 0;
 539        response = 0;
 540        shift = 0;
 541        while (payload < count && shift < 32) {
 542            response |= node->conn[payload] << shift;
 543            payload++;
 544            shift += 8;
 545        }
 546        hda_codec_response(hda, true, response);
 547        break;
 548
 549    /* pin widget */
 550    case AC_VERB_GET_CONFIG_DEFAULT:
 551        hda_codec_response(hda, true, node->config);
 552        break;
 553    case AC_VERB_GET_PIN_WIDGET_CONTROL:
 554        hda_codec_response(hda, true, node->pinctl);
 555        break;
 556    case AC_VERB_SET_PIN_WIDGET_CONTROL:
 557        if (node->pinctl != payload) {
 558            dprint(a, 1, "unhandled pin control bit\n");
 559        }
 560        hda_codec_response(hda, true, 0);
 561        break;
 562
 563    /* audio in/out widget */
 564    case AC_VERB_SET_CHANNEL_STREAMID:
 565        st = a->st + node->stindex;
 566        if (st->node == NULL) {
 567            goto fail;
 568        }
 569        hda_audio_set_running(st, false);
 570        st->stream = (payload >> 4) & 0x0f;
 571        st->channel = payload & 0x0f;
 572        dprint(a, 2, "%s: stream %d, channel %d\n",
 573               st->node->name, st->stream, st->channel);
 574        hda_audio_set_running(st, a->running_real[st->output * 16 + st->stream]);
 575        hda_codec_response(hda, true, 0);
 576        break;
 577    case AC_VERB_GET_CONV:
 578        st = a->st + node->stindex;
 579        if (st->node == NULL) {
 580            goto fail;
 581        }
 582        response = st->stream << 4 | st->channel;
 583        hda_codec_response(hda, true, response);
 584        break;
 585    case AC_VERB_SET_STREAM_FORMAT:
 586        st = a->st + node->stindex;
 587        if (st->node == NULL) {
 588            goto fail;
 589        }
 590        st->format = payload;
 591        hda_codec_parse_fmt(st->format, &st->as);
 592        hda_audio_setup(st);
 593        hda_codec_response(hda, true, 0);
 594        break;
 595    case AC_VERB_GET_STREAM_FORMAT:
 596        st = a->st + node->stindex;
 597        if (st->node == NULL) {
 598            goto fail;
 599        }
 600        hda_codec_response(hda, true, st->format);
 601        break;
 602    case AC_VERB_GET_AMP_GAIN_MUTE:
 603        st = a->st + node->stindex;
 604        if (st->node == NULL) {
 605            goto fail;
 606        }
 607        if (payload & AC_AMP_GET_LEFT) {
 608            response = st->gain_left | (st->mute_left ? AC_AMP_MUTE : 0);
 609        } else {
 610            response = st->gain_right | (st->mute_right ? AC_AMP_MUTE : 0);
 611        }
 612        hda_codec_response(hda, true, response);
 613        break;
 614    case AC_VERB_SET_AMP_GAIN_MUTE:
 615        st = a->st + node->stindex;
 616        if (st->node == NULL) {
 617            goto fail;
 618        }
 619        dprint(a, 1, "amp (%s): %s%s%s%s index %d  gain %3d %s\n",
 620               st->node->name,
 621               (payload & AC_AMP_SET_OUTPUT) ? "o" : "-",
 622               (payload & AC_AMP_SET_INPUT)  ? "i" : "-",
 623               (payload & AC_AMP_SET_LEFT)   ? "l" : "-",
 624               (payload & AC_AMP_SET_RIGHT)  ? "r" : "-",
 625               (payload & AC_AMP_SET_INDEX) >> AC_AMP_SET_INDEX_SHIFT,
 626               (payload & AC_AMP_GAIN),
 627               (payload & AC_AMP_MUTE) ? "muted" : "");
 628        if (payload & AC_AMP_SET_LEFT) {
 629            st->gain_left = payload & AC_AMP_GAIN;
 630            st->mute_left = payload & AC_AMP_MUTE;
 631        }
 632        if (payload & AC_AMP_SET_RIGHT) {
 633            st->gain_right = payload & AC_AMP_GAIN;
 634            st->mute_right = payload & AC_AMP_MUTE;
 635        }
 636        hda_audio_set_amp(st);
 637        hda_codec_response(hda, true, 0);
 638        break;
 639
 640    /* not supported */
 641    case AC_VERB_SET_POWER_STATE:
 642    case AC_VERB_GET_POWER_STATE:
 643    case AC_VERB_GET_SDI_SELECT:
 644        hda_codec_response(hda, true, 0);
 645        break;
 646    default:
 647        goto fail;
 648    }
 649    return;
 650
 651fail:
 652    dprint(a, 1, "%s: not handled: nid %d (%s), verb 0x%x, payload 0x%x\n",
 653           __func__, nid, node ? node->name : "?", verb, payload);
 654    hda_codec_response(hda, true, 0);
 655}
 656
 657static void hda_audio_stream(HDACodecDevice *hda, uint32_t stnr, bool running, bool output)
 658{
 659    HDAAudioState *a = HDA_AUDIO(hda);
 660    int s;
 661
 662    a->running_compat[stnr] = running;
 663    a->running_real[output * 16 + stnr] = running;
 664    for (s = 0; s < ARRAY_SIZE(a->st); s++) {
 665        if (a->st[s].node == NULL) {
 666            continue;
 667        }
 668        if (a->st[s].output != output) {
 669            continue;
 670        }
 671        if (a->st[s].stream != stnr) {
 672            continue;
 673        }
 674        hda_audio_set_running(&a->st[s], running);
 675    }
 676}
 677
 678static int hda_audio_init(HDACodecDevice *hda, const struct desc_codec *desc)
 679{
 680    HDAAudioState *a = HDA_AUDIO(hda);
 681    HDAAudioStream *st;
 682    const desc_node *node;
 683    const desc_param *param;
 684    uint32_t i, type;
 685
 686    a->desc = desc;
 687    a->name = object_get_typename(OBJECT(a));
 688    dprint(a, 1, "%s: cad %d\n", __func__, a->hda.cad);
 689
 690    AUD_register_card("hda", &a->card);
 691    for (i = 0; i < a->desc->nnodes; i++) {
 692        node = a->desc->nodes + i;
 693        param = hda_codec_find_param(node, AC_PAR_AUDIO_WIDGET_CAP);
 694        if (param == NULL) {
 695            continue;
 696        }
 697        type = (param->val & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
 698        switch (type) {
 699        case AC_WID_AUD_OUT:
 700        case AC_WID_AUD_IN:
 701            assert(node->stindex < ARRAY_SIZE(a->st));
 702            st = a->st + node->stindex;
 703            st->state = a;
 704            st->node = node;
 705            if (type == AC_WID_AUD_OUT) {
 706                /* unmute output by default */
 707                st->gain_left = QEMU_HDA_AMP_STEPS;
 708                st->gain_right = QEMU_HDA_AMP_STEPS;
 709                st->compat_bpos = sizeof(st->compat_buf);
 710                st->output = true;
 711            } else {
 712                st->output = false;
 713            }
 714            st->format = AC_FMT_TYPE_PCM | AC_FMT_BITS_16 |
 715                (1 << AC_FMT_CHAN_SHIFT);
 716            hda_codec_parse_fmt(st->format, &st->as);
 717            hda_audio_setup(st);
 718            break;
 719        }
 720    }
 721    return 0;
 722}
 723
 724static void hda_audio_exit(HDACodecDevice *hda)
 725{
 726    HDAAudioState *a = HDA_AUDIO(hda);
 727    HDAAudioStream *st;
 728    int i;
 729
 730    dprint(a, 1, "%s\n", __func__);
 731    for (i = 0; i < ARRAY_SIZE(a->st); i++) {
 732        st = a->st + i;
 733        if (st->node == NULL) {
 734            continue;
 735        }
 736        if (a->use_timer) {
 737            timer_del(st->buft);
 738        }
 739        if (st->output) {
 740            AUD_close_out(&a->card, st->voice.out);
 741        } else {
 742            AUD_close_in(&a->card, st->voice.in);
 743        }
 744    }
 745    AUD_remove_card(&a->card);
 746}
 747
 748static int hda_audio_post_load(void *opaque, int version)
 749{
 750    HDAAudioState *a = opaque;
 751    HDAAudioStream *st;
 752    int i;
 753
 754    dprint(a, 1, "%s\n", __func__);
 755    if (version == 1) {
 756        /* assume running_compat[] is for output streams */
 757        for (i = 0; i < ARRAY_SIZE(a->running_compat); i++)
 758            a->running_real[16 + i] = a->running_compat[i];
 759    }
 760
 761    for (i = 0; i < ARRAY_SIZE(a->st); i++) {
 762        st = a->st + i;
 763        if (st->node == NULL)
 764            continue;
 765        hda_codec_parse_fmt(st->format, &st->as);
 766        hda_audio_setup(st);
 767        hda_audio_set_amp(st);
 768        hda_audio_set_running(st, a->running_real[st->output * 16 + st->stream]);
 769    }
 770    return 0;
 771}
 772
 773static void hda_audio_reset(DeviceState *dev)
 774{
 775    HDAAudioState *a = HDA_AUDIO(dev);
 776    HDAAudioStream *st;
 777    int i;
 778
 779    dprint(a, 1, "%s\n", __func__);
 780    for (i = 0; i < ARRAY_SIZE(a->st); i++) {
 781        st = a->st + i;
 782        if (st->node != NULL) {
 783            hda_audio_set_running(st, false);
 784        }
 785    }
 786}
 787
 788static bool vmstate_hda_audio_stream_buf_needed(void *opaque)
 789{
 790    HDAAudioStream *st = opaque;
 791    return st->state && st->state->use_timer;
 792}
 793
 794static const VMStateDescription vmstate_hda_audio_stream_buf = {
 795    .name = "hda-audio-stream/buffer",
 796    .version_id = 1,
 797    .needed = vmstate_hda_audio_stream_buf_needed,
 798    .fields = (VMStateField[]) {
 799        VMSTATE_BUFFER(buf, HDAAudioStream),
 800        VMSTATE_INT64(rpos, HDAAudioStream),
 801        VMSTATE_INT64(wpos, HDAAudioStream),
 802        VMSTATE_TIMER_PTR(buft, HDAAudioStream),
 803        VMSTATE_INT64(buft_start, HDAAudioStream),
 804        VMSTATE_END_OF_LIST()
 805    }
 806};
 807
 808static const VMStateDescription vmstate_hda_audio_stream = {
 809    .name = "hda-audio-stream",
 810    .version_id = 1,
 811    .fields = (VMStateField[]) {
 812        VMSTATE_UINT32(stream, HDAAudioStream),
 813        VMSTATE_UINT32(channel, HDAAudioStream),
 814        VMSTATE_UINT32(format, HDAAudioStream),
 815        VMSTATE_UINT32(gain_left, HDAAudioStream),
 816        VMSTATE_UINT32(gain_right, HDAAudioStream),
 817        VMSTATE_BOOL(mute_left, HDAAudioStream),
 818        VMSTATE_BOOL(mute_right, HDAAudioStream),
 819        VMSTATE_UINT32(compat_bpos, HDAAudioStream),
 820        VMSTATE_BUFFER(compat_buf, HDAAudioStream),
 821        VMSTATE_END_OF_LIST()
 822    },
 823    .subsections = (const VMStateDescription * []) {
 824        &vmstate_hda_audio_stream_buf,
 825        NULL
 826    }
 827};
 828
 829static const VMStateDescription vmstate_hda_audio = {
 830    .name = "hda-audio",
 831    .version_id = 2,
 832    .post_load = hda_audio_post_load,
 833    .fields = (VMStateField[]) {
 834        VMSTATE_STRUCT_ARRAY(st, HDAAudioState, 4, 0,
 835                             vmstate_hda_audio_stream,
 836                             HDAAudioStream),
 837        VMSTATE_BOOL_ARRAY(running_compat, HDAAudioState, 16),
 838        VMSTATE_BOOL_ARRAY_V(running_real, HDAAudioState, 2 * 16, 2),
 839        VMSTATE_END_OF_LIST()
 840    }
 841};
 842
 843static Property hda_audio_properties[] = {
 844    DEFINE_AUDIO_PROPERTIES(HDAAudioState, card),
 845    DEFINE_PROP_UINT32("debug", HDAAudioState, debug,   0),
 846    DEFINE_PROP_BOOL("mixer", HDAAudioState, mixer,  true),
 847    DEFINE_PROP_BOOL("use-timer", HDAAudioState, use_timer,  true),
 848    DEFINE_PROP_END_OF_LIST(),
 849};
 850
 851static int hda_audio_init_output(HDACodecDevice *hda)
 852{
 853    HDAAudioState *a = HDA_AUDIO(hda);
 854
 855    if (!a->mixer) {
 856        return hda_audio_init(hda, &output_nomixemu);
 857    } else {
 858        return hda_audio_init(hda, &output_mixemu);
 859    }
 860}
 861
 862static int hda_audio_init_duplex(HDACodecDevice *hda)
 863{
 864    HDAAudioState *a = HDA_AUDIO(hda);
 865
 866    if (!a->mixer) {
 867        return hda_audio_init(hda, &duplex_nomixemu);
 868    } else {
 869        return hda_audio_init(hda, &duplex_mixemu);
 870    }
 871}
 872
 873static int hda_audio_init_micro(HDACodecDevice *hda)
 874{
 875    HDAAudioState *a = HDA_AUDIO(hda);
 876
 877    if (!a->mixer) {
 878        return hda_audio_init(hda, &micro_nomixemu);
 879    } else {
 880        return hda_audio_init(hda, &micro_mixemu);
 881    }
 882}
 883
 884static void hda_audio_base_class_init(ObjectClass *klass, void *data)
 885{
 886    DeviceClass *dc = DEVICE_CLASS(klass);
 887    HDACodecDeviceClass *k = HDA_CODEC_DEVICE_CLASS(klass);
 888
 889    k->exit = hda_audio_exit;
 890    k->command = hda_audio_command;
 891    k->stream = hda_audio_stream;
 892    set_bit(DEVICE_CATEGORY_SOUND, dc->categories);
 893    dc->reset = hda_audio_reset;
 894    dc->vmsd = &vmstate_hda_audio;
 895    dc->props = hda_audio_properties;
 896}
 897
 898static const TypeInfo hda_audio_info = {
 899    .name          = TYPE_HDA_AUDIO,
 900    .parent        = TYPE_HDA_CODEC_DEVICE,
 901    .class_init    = hda_audio_base_class_init,
 902    .abstract      = true,
 903};
 904
 905static void hda_audio_output_class_init(ObjectClass *klass, void *data)
 906{
 907    DeviceClass *dc = DEVICE_CLASS(klass);
 908    HDACodecDeviceClass *k = HDA_CODEC_DEVICE_CLASS(klass);
 909
 910    k->init = hda_audio_init_output;
 911    dc->desc = "HDA Audio Codec, output-only (line-out)";
 912}
 913
 914static const TypeInfo hda_audio_output_info = {
 915    .name          = "hda-output",
 916    .parent        = TYPE_HDA_AUDIO,
 917    .instance_size = sizeof(HDAAudioState),
 918    .class_init    = hda_audio_output_class_init,
 919};
 920
 921static void hda_audio_duplex_class_init(ObjectClass *klass, void *data)
 922{
 923    DeviceClass *dc = DEVICE_CLASS(klass);
 924    HDACodecDeviceClass *k = HDA_CODEC_DEVICE_CLASS(klass);
 925
 926    k->init = hda_audio_init_duplex;
 927    dc->desc = "HDA Audio Codec, duplex (line-out, line-in)";
 928}
 929
 930static const TypeInfo hda_audio_duplex_info = {
 931    .name          = "hda-duplex",
 932    .parent        = TYPE_HDA_AUDIO,
 933    .instance_size = sizeof(HDAAudioState),
 934    .class_init    = hda_audio_duplex_class_init,
 935};
 936
 937static void hda_audio_micro_class_init(ObjectClass *klass, void *data)
 938{
 939    DeviceClass *dc = DEVICE_CLASS(klass);
 940    HDACodecDeviceClass *k = HDA_CODEC_DEVICE_CLASS(klass);
 941
 942    k->init = hda_audio_init_micro;
 943    dc->desc = "HDA Audio Codec, duplex (speaker, microphone)";
 944}
 945
 946static const TypeInfo hda_audio_micro_info = {
 947    .name          = "hda-micro",
 948    .parent        = TYPE_HDA_AUDIO,
 949    .instance_size = sizeof(HDAAudioState),
 950    .class_init    = hda_audio_micro_class_init,
 951};
 952
 953static void hda_audio_register_types(void)
 954{
 955    type_register_static(&hda_audio_info);
 956    type_register_static(&hda_audio_output_info);
 957    type_register_static(&hda_audio_duplex_info);
 958    type_register_static(&hda_audio_micro_info);
 959}
 960
 961type_init(hda_audio_register_types)
 962