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