Adding qemu as a submodule of KVMFORNFV

This Patch includes the changes to add qemu as a submodule to
kvmfornfv repo and make use of the updated latest qemu for the
execution of all testcase
Change-Id: I1280af507a857675c7f81d30c95255635667bdd7
Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>

1 files changed, 0 insertions, 1228 deletions

diff --git a/qemu/audio/alsaaudio.c b/qemu/audio/alsaaudio.c
deleted file mode 100644
index 3652a7b5f..000000000
--- a/qemu/audio/alsaaudio.c
+++ /dev/null
@@ -1,1228 +0,0 @@
-/*
- * QEMU ALSA audio driver
- *
- * Copyright (c) 2005 Vassili Karpov (malc)
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-#include "qemu/osdep.h"
-#include <alsa/asoundlib.h>
-#include "qemu-common.h"
-#include "qemu/main-loop.h"
-#include "audio.h"
-#include "trace.h"
-
-#if QEMU_GNUC_PREREQ(4, 3)
-#pragma GCC diagnostic ignored "-Waddress"
-#endif
-
-#define AUDIO_CAP "alsa"
-#include "audio_int.h"
-
-typedef struct ALSAConf {
-    int size_in_usec_in;
-    int size_in_usec_out;
-    const char *pcm_name_in;
-    const char *pcm_name_out;
-    unsigned int buffer_size_in;
-    unsigned int period_size_in;
-    unsigned int buffer_size_out;
-    unsigned int period_size_out;
-    unsigned int threshold;
-
-    int buffer_size_in_overridden;
-    int period_size_in_overridden;
-
-    int buffer_size_out_overridden;
-    int period_size_out_overridden;
-} ALSAConf;
-
-struct pollhlp {
-    snd_pcm_t *handle;
-    struct pollfd *pfds;
-    ALSAConf *conf;
-    int count;
-    int mask;
-};
-
-typedef struct ALSAVoiceOut {
-    HWVoiceOut hw;
-    int wpos;
-    int pending;
-    void *pcm_buf;
-    snd_pcm_t *handle;
-    struct pollhlp pollhlp;
-} ALSAVoiceOut;
-
-typedef struct ALSAVoiceIn {
-    HWVoiceIn hw;
-    snd_pcm_t *handle;
-    void *pcm_buf;
-    struct pollhlp pollhlp;
-} ALSAVoiceIn;
-
-struct alsa_params_req {
-    int freq;
-    snd_pcm_format_t fmt;
-    int nchannels;
-    int size_in_usec;
-    int override_mask;
-    unsigned int buffer_size;
-    unsigned int period_size;
-};
-
-struct alsa_params_obt {
-    int freq;
-    audfmt_e fmt;
-    int endianness;
-    int nchannels;
-    snd_pcm_uframes_t samples;
-};
-
-static void GCC_FMT_ATTR (2, 3) alsa_logerr (int err, const char *fmt, ...)
-{
-    va_list ap;
-
-    va_start (ap, fmt);
-    AUD_vlog (AUDIO_CAP, fmt, ap);
-    va_end (ap);
-
-    AUD_log (AUDIO_CAP, "Reason: %s\n", snd_strerror (err));
-}
-
-static void GCC_FMT_ATTR (3, 4) alsa_logerr2 (
-    int err,
-    const char *typ,
-    const char *fmt,
-    ...
-    )
-{
-    va_list ap;
-
-    AUD_log (AUDIO_CAP, "Could not initialize %s\n", typ);
-
-    va_start (ap, fmt);
-    AUD_vlog (AUDIO_CAP, fmt, ap);
-    va_end (ap);
-
-    AUD_log (AUDIO_CAP, "Reason: %s\n", snd_strerror (err));
-}
-
-static void alsa_fini_poll (struct pollhlp *hlp)
-{
-    int i;
-    struct pollfd *pfds = hlp->pfds;
-
-    if (pfds) {
-        for (i = 0; i < hlp->count; ++i) {
-            qemu_set_fd_handler (pfds[i].fd, NULL, NULL, NULL);
-        }
-        g_free (pfds);
-    }
-    hlp->pfds = NULL;
-    hlp->count = 0;
-    hlp->handle = NULL;
-}
-
-static void alsa_anal_close1 (snd_pcm_t **handlep)
-{
-    int err = snd_pcm_close (*handlep);
-    if (err) {
-        alsa_logerr (err, "Failed to close PCM handle %p\n", *handlep);
-    }
-    *handlep = NULL;
-}
-
-static void alsa_anal_close (snd_pcm_t **handlep, struct pollhlp *hlp)
-{
-    alsa_fini_poll (hlp);
-    alsa_anal_close1 (handlep);
-}
-
-static int alsa_recover (snd_pcm_t *handle)
-{
-    int err = snd_pcm_prepare (handle);
-    if (err < 0) {
-        alsa_logerr (err, "Failed to prepare handle %p\n", handle);
-        return -1;
-    }
-    return 0;
-}
-
-static int alsa_resume (snd_pcm_t *handle)
-{
-    int err = snd_pcm_resume (handle);
-    if (err < 0) {
-        alsa_logerr (err, "Failed to resume handle %p\n", handle);
-        return -1;
-    }
-    return 0;
-}
-
-static void alsa_poll_handler (void *opaque)
-{
-    int err, count;
-    snd_pcm_state_t state;
-    struct pollhlp *hlp = opaque;
-    unsigned short revents;
-
-    count = poll (hlp->pfds, hlp->count, 0);
-    if (count < 0) {
-        dolog ("alsa_poll_handler: poll %s\n", strerror (errno));
-        return;
-    }
-
-    if (!count) {
-        return;
-    }
-
-    /* XXX: ALSA example uses initial count, not the one returned by
-       poll, correct? */
-    err = snd_pcm_poll_descriptors_revents (hlp->handle, hlp->pfds,
-                                            hlp->count, &revents);
-    if (err < 0) {
-        alsa_logerr (err, "snd_pcm_poll_descriptors_revents");
-        return;
-    }
-
-    if (!(revents & hlp->mask)) {
-        trace_alsa_revents(revents);
-        return;
-    }
-
-    state = snd_pcm_state (hlp->handle);
-    switch (state) {
-    case SND_PCM_STATE_SETUP:
-        alsa_recover (hlp->handle);
-        break;
-
-    case SND_PCM_STATE_XRUN:
-        alsa_recover (hlp->handle);
-        break;
-
-    case SND_PCM_STATE_SUSPENDED:
-        alsa_resume (hlp->handle);
-        break;
-
-    case SND_PCM_STATE_PREPARED:
-        audio_run ("alsa run (prepared)");
-        break;
-
-    case SND_PCM_STATE_RUNNING:
-        audio_run ("alsa run (running)");
-        break;
-
-    default:
-        dolog ("Unexpected state %d\n", state);
-    }
-}
-
-static int alsa_poll_helper (snd_pcm_t *handle, struct pollhlp *hlp, int mask)
-{
-    int i, count, err;
-    struct pollfd *pfds;
-
-    count = snd_pcm_poll_descriptors_count (handle);
-    if (count <= 0) {
-        dolog ("Could not initialize poll mode\n"
-               "Invalid number of poll descriptors %d\n", count);
-        return -1;
-    }
-
-    pfds = audio_calloc ("alsa_poll_helper", count, sizeof (*pfds));
-    if (!pfds) {
-        dolog ("Could not initialize poll mode\n");
-        return -1;
-    }
-
-    err = snd_pcm_poll_descriptors (handle, pfds, count);
-    if (err < 0) {
-        alsa_logerr (err, "Could not initialize poll mode\n"
-                     "Could not obtain poll descriptors\n");
-        g_free (pfds);
-        return -1;
-    }
-
-    for (i = 0; i < count; ++i) {
-        if (pfds[i].events & POLLIN) {
-            qemu_set_fd_handler (pfds[i].fd, alsa_poll_handler, NULL, hlp);
-        }
-        if (pfds[i].events & POLLOUT) {
-            trace_alsa_pollout(i, pfds[i].fd);
-            qemu_set_fd_handler (pfds[i].fd, NULL, alsa_poll_handler, hlp);
-        }
-        trace_alsa_set_handler(pfds[i].events, i, pfds[i].fd, err);
-
-    }
-    hlp->pfds = pfds;
-    hlp->count = count;
-    hlp->handle = handle;
-    hlp->mask = mask;
-    return 0;
-}
-
-static int alsa_poll_out (HWVoiceOut *hw)
-{
-    ALSAVoiceOut *alsa = (ALSAVoiceOut *) hw;
-
-    return alsa_poll_helper (alsa->handle, &alsa->pollhlp, POLLOUT);
-}
-
-static int alsa_poll_in (HWVoiceIn *hw)
-{
-    ALSAVoiceIn *alsa = (ALSAVoiceIn *) hw;
-
-    return alsa_poll_helper (alsa->handle, &alsa->pollhlp, POLLIN);
-}
-
-static int alsa_write (SWVoiceOut *sw, void *buf, int len)
-{
-    return audio_pcm_sw_write (sw, buf, len);
-}
-
-static snd_pcm_format_t aud_to_alsafmt (audfmt_e fmt, int endianness)
-{
-    switch (fmt) {
-    case AUD_FMT_S8:
-        return SND_PCM_FORMAT_S8;
-
-    case AUD_FMT_U8:
-        return SND_PCM_FORMAT_U8;
-
-    case AUD_FMT_S16:
-        if (endianness) {
-            return SND_PCM_FORMAT_S16_BE;
-        }
-        else {
-            return SND_PCM_FORMAT_S16_LE;
-        }
-
-    case AUD_FMT_U16:
-        if (endianness) {
-            return SND_PCM_FORMAT_U16_BE;
-        }
-        else {
-            return SND_PCM_FORMAT_U16_LE;
-        }
-
-    case AUD_FMT_S32:
-        if (endianness) {
-            return SND_PCM_FORMAT_S32_BE;
-        }
-        else {
-            return SND_PCM_FORMAT_S32_LE;
-        }
-
-    case AUD_FMT_U32:
-        if (endianness) {
-            return SND_PCM_FORMAT_U32_BE;
-        }
-        else {
-            return SND_PCM_FORMAT_U32_LE;
-        }
-
-    default:
-        dolog ("Internal logic error: Bad audio format %d\n", fmt);
-#ifdef DEBUG_AUDIO
-        abort ();
-#endif
-        return SND_PCM_FORMAT_U8;
-    }
-}
-
-static int alsa_to_audfmt (snd_pcm_format_t alsafmt, audfmt_e *fmt,
-                           int *endianness)
-{
-    switch (alsafmt) {
-    case SND_PCM_FORMAT_S8:
-        *endianness = 0;
-        *fmt = AUD_FMT_S8;
-        break;
-
-    case SND_PCM_FORMAT_U8:
-        *endianness = 0;
-        *fmt = AUD_FMT_U8;
-        break;
-
-    case SND_PCM_FORMAT_S16_LE:
-        *endianness = 0;
-        *fmt = AUD_FMT_S16;
-        break;
-
-    case SND_PCM_FORMAT_U16_LE:
-        *endianness = 0;
-        *fmt = AUD_FMT_U16;
-        break;
-
-    case SND_PCM_FORMAT_S16_BE:
-        *endianness = 1;
-        *fmt = AUD_FMT_S16;
-        break;
-
-    case SND_PCM_FORMAT_U16_BE:
-        *endianness = 1;
-        *fmt = AUD_FMT_U16;
-        break;
-
-    case SND_PCM_FORMAT_S32_LE:
-        *endianness = 0;
-        *fmt = AUD_FMT_S32;
-        break;
-
-    case SND_PCM_FORMAT_U32_LE:
-        *endianness = 0;
-        *fmt = AUD_FMT_U32;
-        break;
-
-    case SND_PCM_FORMAT_S32_BE:
-        *endianness = 1;
-        *fmt = AUD_FMT_S32;
-        break;
-
-    case SND_PCM_FORMAT_U32_BE:
-        *endianness = 1;
-        *fmt = AUD_FMT_U32;
-        break;
-
-    default:
-        dolog ("Unrecognized audio format %d\n", alsafmt);
-        return -1;
-    }
-
-    return 0;
-}
-
-static void alsa_dump_info (struct alsa_params_req *req,
-                            struct alsa_params_obt *obt,
-                            snd_pcm_format_t obtfmt)
-{
-    dolog ("parameter | requested value | obtained value\n");
-    dolog ("format    |      %10d |     %10d\n", req->fmt, obtfmt);
-    dolog ("channels  |      %10d |     %10d\n",
-           req->nchannels, obt->nchannels);
-    dolog ("frequency |      %10d |     %10d\n", req->freq, obt->freq);
-    dolog ("============================================\n");
-    dolog ("requested: buffer size %d period size %d\n",
-           req->buffer_size, req->period_size);
-    dolog ("obtained: samples %ld\n", obt->samples);
-}
-
-static void alsa_set_threshold (snd_pcm_t *handle, snd_pcm_uframes_t threshold)
-{
-    int err;
-    snd_pcm_sw_params_t *sw_params;
-
-    snd_pcm_sw_params_alloca (&sw_params);
-
-    err = snd_pcm_sw_params_current (handle, sw_params);
-    if (err < 0) {
-        dolog ("Could not fully initialize DAC\n");
-        alsa_logerr (err, "Failed to get current software parameters\n");
-        return;
-    }
-
-    err = snd_pcm_sw_params_set_start_threshold (handle, sw_params, threshold);
-    if (err < 0) {
-        dolog ("Could not fully initialize DAC\n");
-        alsa_logerr (err, "Failed to set software threshold to %ld\n",
-                     threshold);
-        return;
-    }
-
-    err = snd_pcm_sw_params (handle, sw_params);
-    if (err < 0) {
-        dolog ("Could not fully initialize DAC\n");
-        alsa_logerr (err, "Failed to set software parameters\n");
-        return;
-    }
-}
-
-static int alsa_open (int in, struct alsa_params_req *req,
-                      struct alsa_params_obt *obt, snd_pcm_t **handlep,
-                      ALSAConf *conf)
-{
-    snd_pcm_t *handle;
-    snd_pcm_hw_params_t *hw_params;
-    int err;
-    int size_in_usec;
-    unsigned int freq, nchannels;
-    const char *pcm_name = in ? conf->pcm_name_in : conf->pcm_name_out;
-    snd_pcm_uframes_t obt_buffer_size;
-    const char *typ = in ? "ADC" : "DAC";
-    snd_pcm_format_t obtfmt;
-
-    freq = req->freq;
-    nchannels = req->nchannels;
-    size_in_usec = req->size_in_usec;
-
-    snd_pcm_hw_params_alloca (&hw_params);
-
-    err = snd_pcm_open (
-        &handle,
-        pcm_name,
-        in ? SND_PCM_STREAM_CAPTURE : SND_PCM_STREAM_PLAYBACK,
-        SND_PCM_NONBLOCK
-        );
-    if (err < 0) {
-        alsa_logerr2 (err, typ, "Failed to open `%s':\n", pcm_name);
-        return -1;
-    }
-
-    err = snd_pcm_hw_params_any (handle, hw_params);
-    if (err < 0) {
-        alsa_logerr2 (err, typ, "Failed to initialize hardware parameters\n");
-        goto err;
-    }
-
-    err = snd_pcm_hw_params_set_access (
-        handle,
-        hw_params,
-        SND_PCM_ACCESS_RW_INTERLEAVED
-        );
-    if (err < 0) {
-        alsa_logerr2 (err, typ, "Failed to set access type\n");
-        goto err;
-    }
-
-    err = snd_pcm_hw_params_set_format (handle, hw_params, req->fmt);
-    if (err < 0) {
-        alsa_logerr2 (err, typ, "Failed to set format %d\n", req->fmt);
-    }
-
-    err = snd_pcm_hw_params_set_rate_near (handle, hw_params, &freq, 0);
-    if (err < 0) {
-        alsa_logerr2 (err, typ, "Failed to set frequency %d\n", req->freq);
-        goto err;
-    }
-
-    err = snd_pcm_hw_params_set_channels_near (
-        handle,
-        hw_params,
-        &nchannels
-        );
-    if (err < 0) {
-        alsa_logerr2 (err, typ, "Failed to set number of channels %d\n",
-                      req->nchannels);
-        goto err;
-    }
-
-    if (nchannels != 1 && nchannels != 2) {
-        alsa_logerr2 (err, typ,
-                      "Can not handle obtained number of channels %d\n",
-                      nchannels);
-        goto err;
-    }
-
-    if (req->buffer_size) {
-        unsigned long obt;
-
-        if (size_in_usec) {
-            int dir = 0;
-            unsigned int btime = req->buffer_size;
-
-            err = snd_pcm_hw_params_set_buffer_time_near (
-                handle,
-                hw_params,
-                &btime,
-                &dir
-                );
-            obt = btime;
-        }
-        else {
-            snd_pcm_uframes_t bsize = req->buffer_size;
-
-            err = snd_pcm_hw_params_set_buffer_size_near (
-                handle,
-                hw_params,
-                &bsize
-                );
-            obt = bsize;
-        }
-        if (err < 0) {
-            alsa_logerr2 (err, typ, "Failed to set buffer %s to %d\n",
-                          size_in_usec ? "time" : "size", req->buffer_size);
-            goto err;
-        }
-
-        if ((req->override_mask & 2) && (obt - req->buffer_size))
-            dolog ("Requested buffer %s %u was rejected, using %lu\n",
-                   size_in_usec ? "time" : "size", req->buffer_size, obt);
-    }
-
-    if (req->period_size) {
-        unsigned long obt;
-
-        if (size_in_usec) {
-            int dir = 0;
-            unsigned int ptime = req->period_size;
-
-            err = snd_pcm_hw_params_set_period_time_near (
-                handle,
-                hw_params,
-                &ptime,
-                &dir
-                );
-            obt = ptime;
-        }
-        else {
-            int dir = 0;
-            snd_pcm_uframes_t psize = req->period_size;
-
-            err = snd_pcm_hw_params_set_period_size_near (
-                handle,
-                hw_params,
-                &psize,
-                &dir
-                );
-            obt = psize;
-        }
-
-        if (err < 0) {
-            alsa_logerr2 (err, typ, "Failed to set period %s to %d\n",
-                          size_in_usec ? "time" : "size", req->period_size);
-            goto err;
-        }
-
-        if (((req->override_mask & 1) && (obt - req->period_size)))
-            dolog ("Requested period %s %u was rejected, using %lu\n",
-                   size_in_usec ? "time" : "size", req->period_size, obt);
-    }
-
-    err = snd_pcm_hw_params (handle, hw_params);
-    if (err < 0) {
-        alsa_logerr2 (err, typ, "Failed to apply audio parameters\n");
-        goto err;
-    }
-
-    err = snd_pcm_hw_params_get_buffer_size (hw_params, &obt_buffer_size);
-    if (err < 0) {
-        alsa_logerr2 (err, typ, "Failed to get buffer size\n");
-        goto err;
-    }
-
-    err = snd_pcm_hw_params_get_format (hw_params, &obtfmt);
-    if (err < 0) {
-        alsa_logerr2 (err, typ, "Failed to get format\n");
-        goto err;
-    }
-
-    if (alsa_to_audfmt (obtfmt, &obt->fmt, &obt->endianness)) {
-        dolog ("Invalid format was returned %d\n", obtfmt);
-        goto err;
-    }
-
-    err = snd_pcm_prepare (handle);
-    if (err < 0) {
-        alsa_logerr2 (err, typ, "Could not prepare handle %p\n", handle);
-        goto err;
-    }
-
-    if (!in && conf->threshold) {
-        snd_pcm_uframes_t threshold;
-        int bytes_per_sec;
-
-        bytes_per_sec = freq << (nchannels == 2);
-
-        switch (obt->fmt) {
-        case AUD_FMT_S8:
-        case AUD_FMT_U8:
-            break;
-
-        case AUD_FMT_S16:
-        case AUD_FMT_U16:
-            bytes_per_sec <<= 1;
-            break;
-
-        case AUD_FMT_S32:
-        case AUD_FMT_U32:
-            bytes_per_sec <<= 2;
-            break;
-        }
-
-        threshold = (conf->threshold * bytes_per_sec) / 1000;
-        alsa_set_threshold (handle, threshold);
-    }
-
-    obt->nchannels = nchannels;
-    obt->freq = freq;
-    obt->samples = obt_buffer_size;
-
-    *handlep = handle;
-
-    if (obtfmt != req->fmt ||
-         obt->nchannels != req->nchannels ||
-         obt->freq != req->freq) {
-        dolog ("Audio parameters for %s\n", typ);
-        alsa_dump_info (req, obt, obtfmt);
-    }
-
-#ifdef DEBUG
-    alsa_dump_info (req, obt, obtfmt);
-#endif
-    return 0;
-
- err:
-    alsa_anal_close1 (&handle);
-    return -1;
-}
-
-static snd_pcm_sframes_t alsa_get_avail (snd_pcm_t *handle)
-{
-    snd_pcm_sframes_t avail;
-
-    avail = snd_pcm_avail_update (handle);
-    if (avail < 0) {
-        if (avail == -EPIPE) {
-            if (!alsa_recover (handle)) {
-                avail = snd_pcm_avail_update (handle);
-            }
-        }
-
-        if (avail < 0) {
-            alsa_logerr (avail,
-                         "Could not obtain number of available frames\n");
-            return -1;
-        }
-    }
-
-    return avail;
-}
-
-static void alsa_write_pending (ALSAVoiceOut *alsa)
-{
-    HWVoiceOut *hw = &alsa->hw;
-
-    while (alsa->pending) {
-        int left_till_end_samples = hw->samples - alsa->wpos;
-        int len = audio_MIN (alsa->pending, left_till_end_samples);
-        char *src = advance (alsa->pcm_buf, alsa->wpos << hw->info.shift);
-
-        while (len) {
-            snd_pcm_sframes_t written;
-
-            written = snd_pcm_writei (alsa->handle, src, len);
-
-            if (written <= 0) {
-                switch (written) {
-                case 0:
-                    trace_alsa_wrote_zero(len);
-                    return;
-
-                case -EPIPE:
-                    if (alsa_recover (alsa->handle)) {
-                        alsa_logerr (written, "Failed to write %d frames\n",
-                                     len);
-                        return;
-                    }
-                    trace_alsa_xrun_out();
-                    continue;
-
-                case -ESTRPIPE:
-                    /* stream is suspended and waiting for an
-                       application recovery */
-                    if (alsa_resume (alsa->handle)) {
-                        alsa_logerr (written, "Failed to write %d frames\n",
-                                     len);
-                        return;
-                    }
-                    trace_alsa_resume_out();
-                    continue;
-
-                case -EAGAIN:
-                    return;
-
-                default:
-                    alsa_logerr (written, "Failed to write %d frames from %p\n",
-                                 len, src);
-                    return;
-                }
-            }
-
-            alsa->wpos = (alsa->wpos + written) % hw->samples;
-            alsa->pending -= written;
-            len -= written;
-        }
-    }
-}
-
-static int alsa_run_out (HWVoiceOut *hw, int live)
-{
-    ALSAVoiceOut *alsa = (ALSAVoiceOut *) hw;
-    int decr;
-    snd_pcm_sframes_t avail;
-
-    avail = alsa_get_avail (alsa->handle);
-    if (avail < 0) {
-        dolog ("Could not get number of available playback frames\n");
-        return 0;
-    }
-
-    decr = audio_MIN (live, avail);
-    decr = audio_pcm_hw_clip_out (hw, alsa->pcm_buf, decr, alsa->pending);
-    alsa->pending += decr;
-    alsa_write_pending (alsa);
-    return decr;
-}
-
-static void alsa_fini_out (HWVoiceOut *hw)
-{
-    ALSAVoiceOut *alsa = (ALSAVoiceOut *) hw;
-
-    ldebug ("alsa_fini\n");
-    alsa_anal_close (&alsa->handle, &alsa->pollhlp);
-
-    g_free(alsa->pcm_buf);
-    alsa->pcm_buf = NULL;
-}
-
-static int alsa_init_out(HWVoiceOut *hw, struct audsettings *as,
-                         void *drv_opaque)
-{
-    ALSAVoiceOut *alsa = (ALSAVoiceOut *) hw;
-    struct alsa_params_req req;
-    struct alsa_params_obt obt;
-    snd_pcm_t *handle;
-    struct audsettings obt_as;
-    ALSAConf *conf = drv_opaque;
-
-    req.fmt = aud_to_alsafmt (as->fmt, as->endianness);
-    req.freq = as->freq;
-    req.nchannels = as->nchannels;
-    req.period_size = conf->period_size_out;
-    req.buffer_size = conf->buffer_size_out;
-    req.size_in_usec = conf->size_in_usec_out;
-    req.override_mask =
-        (conf->period_size_out_overridden ? 1 : 0) |
-        (conf->buffer_size_out_overridden ? 2 : 0);
-
-    if (alsa_open (0, &req, &obt, &handle, conf)) {
-        return -1;
-    }
-
-    obt_as.freq = obt.freq;
-    obt_as.nchannels = obt.nchannels;
-    obt_as.fmt = obt.fmt;
-    obt_as.endianness = obt.endianness;
-
-    audio_pcm_init_info (&hw->info, &obt_as);
-    hw->samples = obt.samples;
-
-    alsa->pcm_buf = audio_calloc (AUDIO_FUNC, obt.samples, 1 << hw->info.shift);
-    if (!alsa->pcm_buf) {
-        dolog ("Could not allocate DAC buffer (%d samples, each %d bytes)\n",
-               hw->samples, 1 << hw->info.shift);
-        alsa_anal_close1 (&handle);
-        return -1;
-    }
-
-    alsa->handle = handle;
-    alsa->pollhlp.conf = conf;
-    return 0;
-}
-
-#define VOICE_CTL_PAUSE 0
-#define VOICE_CTL_PREPARE 1
-#define VOICE_CTL_START 2
-
-static int alsa_voice_ctl (snd_pcm_t *handle, const char *typ, int ctl)
-{
-    int err;
-
-    if (ctl == VOICE_CTL_PAUSE) {
-        err = snd_pcm_drop (handle);
-        if (err < 0) {
-            alsa_logerr (err, "Could not stop %s\n", typ);
-            return -1;
-        }
-    }
-    else {
-        err = snd_pcm_prepare (handle);
-        if (err < 0) {
-            alsa_logerr (err, "Could not prepare handle for %s\n", typ);
-            return -1;
-        }
-        if (ctl == VOICE_CTL_START) {
-            err = snd_pcm_start(handle);
-            if (err < 0) {
-                alsa_logerr (err, "Could not start handle for %s\n", typ);
-                return -1;
-            }
-        }
-    }
-
-    return 0;
-}
-
-static int alsa_ctl_out (HWVoiceOut *hw, int cmd, ...)
-{
-    ALSAVoiceOut *alsa = (ALSAVoiceOut *) hw;
-
-    switch (cmd) {
-    case VOICE_ENABLE:
-        {
-            va_list ap;
-            int poll_mode;
-
-            va_start (ap, cmd);
-            poll_mode = va_arg (ap, int);
-            va_end (ap);
-
-            ldebug ("enabling voice\n");
-            if (poll_mode && alsa_poll_out (hw)) {
-                poll_mode = 0;
-            }
-            hw->poll_mode = poll_mode;
-            return alsa_voice_ctl (alsa->handle, "playback", VOICE_CTL_PREPARE);
-        }
-
-    case VOICE_DISABLE:
-        ldebug ("disabling voice\n");
-        if (hw->poll_mode) {
-            hw->poll_mode = 0;
-            alsa_fini_poll (&alsa->pollhlp);
-        }
-        return alsa_voice_ctl (alsa->handle, "playback", VOICE_CTL_PAUSE);
-    }
-
-    return -1;
-}
-
-static int alsa_init_in(HWVoiceIn *hw, struct audsettings *as, void *drv_opaque)
-{
-    ALSAVoiceIn *alsa = (ALSAVoiceIn *) hw;
-    struct alsa_params_req req;
-    struct alsa_params_obt obt;
-    snd_pcm_t *handle;
-    struct audsettings obt_as;
-    ALSAConf *conf = drv_opaque;
-
-    req.fmt = aud_to_alsafmt (as->fmt, as->endianness);
-    req.freq = as->freq;
-    req.nchannels = as->nchannels;
-    req.period_size = conf->period_size_in;
-    req.buffer_size = conf->buffer_size_in;
-    req.size_in_usec = conf->size_in_usec_in;
-    req.override_mask =
-        (conf->period_size_in_overridden ? 1 : 0) |
-        (conf->buffer_size_in_overridden ? 2 : 0);
-
-    if (alsa_open (1, &req, &obt, &handle, conf)) {
-        return -1;
-    }
-
-    obt_as.freq = obt.freq;
-    obt_as.nchannels = obt.nchannels;
-    obt_as.fmt = obt.fmt;
-    obt_as.endianness = obt.endianness;
-
-    audio_pcm_init_info (&hw->info, &obt_as);
-    hw->samples = obt.samples;
-
-    alsa->pcm_buf = audio_calloc (AUDIO_FUNC, hw->samples, 1 << hw->info.shift);
-    if (!alsa->pcm_buf) {
-        dolog ("Could not allocate ADC buffer (%d samples, each %d bytes)\n",
-               hw->samples, 1 << hw->info.shift);
-        alsa_anal_close1 (&handle);
-        return -1;
-    }
-
-    alsa->handle = handle;
-    alsa->pollhlp.conf = conf;
-    return 0;
-}
-
-static void alsa_fini_in (HWVoiceIn *hw)
-{
-    ALSAVoiceIn *alsa = (ALSAVoiceIn *) hw;
-
-    alsa_anal_close (&alsa->handle, &alsa->pollhlp);
-
-    g_free(alsa->pcm_buf);
-    alsa->pcm_buf = NULL;
-}
-
-static int alsa_run_in (HWVoiceIn *hw)
-{
-    ALSAVoiceIn *alsa = (ALSAVoiceIn *) hw;
-    int hwshift = hw->info.shift;
-    int i;
-    int live = audio_pcm_hw_get_live_in (hw);
-    int dead = hw->samples - live;
-    int decr;
-    struct {
-        int add;
-        int len;
-    } bufs[2] = {
-        { .add = hw->wpos, .len = 0 },
-        { .add = 0,        .len = 0 }
-    };
-    snd_pcm_sframes_t avail;
-    snd_pcm_uframes_t read_samples = 0;
-
-    if (!dead) {
-        return 0;
-    }
-
-    avail = alsa_get_avail (alsa->handle);
-    if (avail < 0) {
-        dolog ("Could not get number of captured frames\n");
-        return 0;
-    }
-
-    if (!avail) {
-        snd_pcm_state_t state;
-
-        state = snd_pcm_state (alsa->handle);
-        switch (state) {
-        case SND_PCM_STATE_PREPARED:
-            avail = hw->samples;
-            break;
-        case SND_PCM_STATE_SUSPENDED:
-            /* stream is suspended and waiting for an application recovery */
-            if (alsa_resume (alsa->handle)) {
-                dolog ("Failed to resume suspended input stream\n");
-                return 0;
-            }
-            trace_alsa_resume_in();
-            break;
-        default:
-            trace_alsa_no_frames(state);
-            return 0;
-        }
-    }
-
-    decr = audio_MIN (dead, avail);
-    if (!decr) {
-        return 0;
-    }
-
-    if (hw->wpos + decr > hw->samples) {
-        bufs[0].len = (hw->samples - hw->wpos);
-        bufs[1].len = (decr - (hw->samples - hw->wpos));
-    }
-    else {
-        bufs[0].len = decr;
-    }
-
-    for (i = 0; i < 2; ++i) {
-        void *src;
-        struct st_sample *dst;
-        snd_pcm_sframes_t nread;
-        snd_pcm_uframes_t len;
-
-        len = bufs[i].len;
-
-        src = advance (alsa->pcm_buf, bufs[i].add << hwshift);
-        dst = hw->conv_buf + bufs[i].add;
-
-        while (len) {
-            nread = snd_pcm_readi (alsa->handle, src, len);
-
-            if (nread <= 0) {
-                switch (nread) {
-                case 0:
-                    trace_alsa_read_zero(len);
-                    goto exit;
-
-                case -EPIPE:
-                    if (alsa_recover (alsa->handle)) {
-                        alsa_logerr (nread, "Failed to read %ld frames\n", len);
-                        goto exit;
-                    }
-                    trace_alsa_xrun_in();
-                    continue;
-
-                case -EAGAIN:
-                    goto exit;
-
-                default:
-                    alsa_logerr (
-                        nread,
-                        "Failed to read %ld frames from %p\n",
-                        len,
-                        src
-                        );
-                    goto exit;
-                }
-            }
-
-            hw->conv (dst, src, nread);
-
-            src = advance (src, nread << hwshift);
-            dst += nread;
-
-            read_samples += nread;
-            len -= nread;
-        }
-    }
-
- exit:
-    hw->wpos = (hw->wpos + read_samples) % hw->samples;
-    return read_samples;
-}
-
-static int alsa_read (SWVoiceIn *sw, void *buf, int size)
-{
-    return audio_pcm_sw_read (sw, buf, size);
-}
-
-static int alsa_ctl_in (HWVoiceIn *hw, int cmd, ...)
-{
-    ALSAVoiceIn *alsa = (ALSAVoiceIn *) hw;
-
-    switch (cmd) {
-    case VOICE_ENABLE:
-        {
-            va_list ap;
-            int poll_mode;
-
-            va_start (ap, cmd);
-            poll_mode = va_arg (ap, int);
-            va_end (ap);
-
-            ldebug ("enabling voice\n");
-            if (poll_mode && alsa_poll_in (hw)) {
-                poll_mode = 0;
-            }
-            hw->poll_mode = poll_mode;
-
-            return alsa_voice_ctl (alsa->handle, "capture", VOICE_CTL_START);
-        }
-
-    case VOICE_DISABLE:
-        ldebug ("disabling voice\n");
-        if (hw->poll_mode) {
-            hw->poll_mode = 0;
-            alsa_fini_poll (&alsa->pollhlp);
-        }
-        return alsa_voice_ctl (alsa->handle, "capture", VOICE_CTL_PAUSE);
-    }
-
-    return -1;
-}
-
-static ALSAConf glob_conf = {
-    .buffer_size_out = 4096,
-    .period_size_out = 1024,
-    .pcm_name_out = "default",
-    .pcm_name_in = "default",
-};
-
-static void *alsa_audio_init (void)
-{
-    ALSAConf *conf = g_malloc(sizeof(ALSAConf));
-    *conf = glob_conf;
-    return conf;
-}
-
-static void alsa_audio_fini (void *opaque)
-{
-    g_free(opaque);
-}
-
-static struct audio_option alsa_options[] = {
-    {
-        .name        = "DAC_SIZE_IN_USEC",
-        .tag         = AUD_OPT_BOOL,
-        .valp        = &glob_conf.size_in_usec_out,
-        .descr       = "DAC period/buffer size in microseconds (otherwise in frames)"
-    },
-    {
-        .name        = "DAC_PERIOD_SIZE",
-        .tag         = AUD_OPT_INT,
-        .valp        = &glob_conf.period_size_out,
-        .descr       = "DAC period size (0 to go with system default)",
-        .overriddenp = &glob_conf.period_size_out_overridden
-    },
-    {
-        .name        = "DAC_BUFFER_SIZE",
-        .tag         = AUD_OPT_INT,
-        .valp        = &glob_conf.buffer_size_out,
-        .descr       = "DAC buffer size (0 to go with system default)",
-        .overriddenp = &glob_conf.buffer_size_out_overridden
-    },
-    {
-        .name        = "ADC_SIZE_IN_USEC",
-        .tag         = AUD_OPT_BOOL,
-        .valp        = &glob_conf.size_in_usec_in,
-        .descr       =
-        "ADC period/buffer size in microseconds (otherwise in frames)"
-    },
-    {
-        .name        = "ADC_PERIOD_SIZE",
-        .tag         = AUD_OPT_INT,
-        .valp        = &glob_conf.period_size_in,
-        .descr       = "ADC period size (0 to go with system default)",
-        .overriddenp = &glob_conf.period_size_in_overridden
-    },
-    {
-        .name        = "ADC_BUFFER_SIZE",
-        .tag         = AUD_OPT_INT,
-        .valp        = &glob_conf.buffer_size_in,
-        .descr       = "ADC buffer size (0 to go with system default)",
-        .overriddenp = &glob_conf.buffer_size_in_overridden
-    },
-    {
-        .name        = "THRESHOLD",
-        .tag         = AUD_OPT_INT,
-        .valp        = &glob_conf.threshold,
-        .descr       = "(undocumented)"
-    },
-    {
-        .name        = "DAC_DEV",
-        .tag         = AUD_OPT_STR,
-        .valp        = &glob_conf.pcm_name_out,
-        .descr       = "DAC device name (for instance dmix)"
-    },
-    {
-        .name        = "ADC_DEV",
-        .tag         = AUD_OPT_STR,
-        .valp        = &glob_conf.pcm_name_in,
-        .descr       = "ADC device name"
-    },
-    { /* End of list */ }
-};
-
-static struct audio_pcm_ops alsa_pcm_ops = {
-    .init_out = alsa_init_out,
-    .fini_out = alsa_fini_out,
-    .run_out  = alsa_run_out,
-    .write    = alsa_write,
-    .ctl_out  = alsa_ctl_out,
-
-    .init_in  = alsa_init_in,
-    .fini_in  = alsa_fini_in,
-    .run_in   = alsa_run_in,
-    .read     = alsa_read,
-    .ctl_in   = alsa_ctl_in,
-};
-
-struct audio_driver alsa_audio_driver = {
-    .name           = "alsa",
-    .descr          = "ALSA http://www.alsa-project.org",
-    .options        = alsa_options,
-    .init           = alsa_audio_init,
-    .fini           = alsa_audio_fini,
-    .pcm_ops        = &alsa_pcm_ops,
-    .can_be_default = 1,
-    .max_voices_out = INT_MAX,
-    .max_voices_in  = INT_MAX,
-    .voice_size_out = sizeof (ALSAVoiceOut),
-    .voice_size_in  = sizeof (ALSAVoiceIn)
-};