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