Add qemu 2.4.0

Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>

1 files changed, 411 insertions, 0 deletions

diff --git a/qemu/audio/spiceaudio.c b/qemu/audio/spiceaudio.c
new file mode 100644
index 000000000..42ae4a45f
--- /dev/null
+++ b/qemu/audio/spiceaudio.c
@@ -0,0 +1,411 @@
+/*
+ * Copyright (C) 2010 Red Hat, Inc.
+ *
+ * maintained by Gerd Hoffmann <kraxel@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 or
+ * (at your option) version 3 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "hw/hw.h"
+#include "qemu/error-report.h"
+#include "qemu/timer.h"
+#include "ui/qemu-spice.h"
+
+#define AUDIO_CAP "spice"
+#include "audio.h"
+#include "audio_int.h"
+
+#if SPICE_INTERFACE_PLAYBACK_MAJOR > 1 || SPICE_INTERFACE_PLAYBACK_MINOR >= 3
+#define LINE_OUT_SAMPLES (480 * 4)
+#else
+#define LINE_OUT_SAMPLES (256 * 4)
+#endif
+
+#if SPICE_INTERFACE_RECORD_MAJOR > 2 || SPICE_INTERFACE_RECORD_MINOR >= 3
+#define LINE_IN_SAMPLES (480 * 4)
+#else
+#define LINE_IN_SAMPLES (256 * 4)
+#endif
+
+typedef struct SpiceRateCtl {
+    int64_t               start_ticks;
+    int64_t               bytes_sent;
+} SpiceRateCtl;
+
+typedef struct SpiceVoiceOut {
+    HWVoiceOut            hw;
+    SpicePlaybackInstance sin;
+    SpiceRateCtl          rate;
+    int                   active;
+    uint32_t              *frame;
+    uint32_t              *fpos;
+    uint32_t              fsize;
+} SpiceVoiceOut;
+
+typedef struct SpiceVoiceIn {
+    HWVoiceIn             hw;
+    SpiceRecordInstance   sin;
+    SpiceRateCtl          rate;
+    int                   active;
+    uint32_t              samples[LINE_IN_SAMPLES];
+} SpiceVoiceIn;
+
+static const SpicePlaybackInterface playback_sif = {
+    .base.type          = SPICE_INTERFACE_PLAYBACK,
+    .base.description   = "playback",
+    .base.major_version = SPICE_INTERFACE_PLAYBACK_MAJOR,
+    .base.minor_version = SPICE_INTERFACE_PLAYBACK_MINOR,
+};
+
+static const SpiceRecordInterface record_sif = {
+    .base.type          = SPICE_INTERFACE_RECORD,
+    .base.description   = "record",
+    .base.major_version = SPICE_INTERFACE_RECORD_MAJOR,
+    .base.minor_version = SPICE_INTERFACE_RECORD_MINOR,
+};
+
+static void *spice_audio_init (void)
+{
+    if (!using_spice) {
+        return NULL;
+    }
+    return &spice_audio_init;
+}
+
+static void spice_audio_fini (void *opaque)
+{
+    /* nothing */
+}
+
+static void rate_start (SpiceRateCtl *rate)
+{
+    memset (rate, 0, sizeof (*rate));
+    rate->start_ticks = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
+}
+
+static int rate_get_samples (struct audio_pcm_info *info, SpiceRateCtl *rate)
+{
+    int64_t now;
+    int64_t ticks;
+    int64_t bytes;
+    int64_t samples;
+
+    now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
+    ticks = now - rate->start_ticks;
+    bytes = muldiv64 (ticks, info->bytes_per_second, get_ticks_per_sec ());
+    samples = (bytes - rate->bytes_sent) >> info->shift;
+    if (samples < 0 || samples > 65536) {
+        error_report("Resetting rate control (%" PRId64 " samples)", samples);
+        rate_start (rate);
+        samples = 0;
+    }
+    rate->bytes_sent += samples << info->shift;
+    return samples;
+}
+
+/* playback */
+
+static int line_out_init(HWVoiceOut *hw, struct audsettings *as,
+                         void *drv_opaque)
+{
+    SpiceVoiceOut *out = container_of (hw, SpiceVoiceOut, hw);
+    struct audsettings settings;
+
+#if SPICE_INTERFACE_PLAYBACK_MAJOR > 1 || SPICE_INTERFACE_PLAYBACK_MINOR >= 3
+    settings.freq       = spice_server_get_best_playback_rate(NULL);
+#else
+    settings.freq       = SPICE_INTERFACE_PLAYBACK_FREQ;
+#endif
+    settings.nchannels  = SPICE_INTERFACE_PLAYBACK_CHAN;
+    settings.fmt        = AUD_FMT_S16;
+    settings.endianness = AUDIO_HOST_ENDIANNESS;
+
+    audio_pcm_init_info (&hw->info, &settings);
+    hw->samples = LINE_OUT_SAMPLES;
+    out->active = 0;
+
+    out->sin.base.sif = &playback_sif.base;
+    qemu_spice_add_interface (&out->sin.base);
+#if SPICE_INTERFACE_PLAYBACK_MAJOR > 1 || SPICE_INTERFACE_PLAYBACK_MINOR >= 3
+    spice_server_set_playback_rate(&out->sin, settings.freq);
+#endif
+    return 0;
+}
+
+static void line_out_fini (HWVoiceOut *hw)
+{
+    SpiceVoiceOut *out = container_of (hw, SpiceVoiceOut, hw);
+
+    spice_server_remove_interface (&out->sin.base);
+}
+
+static int line_out_run (HWVoiceOut *hw, int live)
+{
+    SpiceVoiceOut *out = container_of (hw, SpiceVoiceOut, hw);
+    int rpos, decr;
+    int samples;
+
+    if (!live) {
+        return 0;
+    }
+
+    decr = rate_get_samples (&hw->info, &out->rate);
+    decr = audio_MIN (live, decr);
+
+    samples = decr;
+    rpos = hw->rpos;
+    while (samples) {
+        int left_till_end_samples = hw->samples - rpos;
+        int len = audio_MIN (samples, left_till_end_samples);
+
+        if (!out->frame) {
+            spice_server_playback_get_buffer (&out->sin, &out->frame, &out->fsize);
+            out->fpos = out->frame;
+        }
+        if (out->frame) {
+            len = audio_MIN (len, out->fsize);
+            hw->clip (out->fpos, hw->mix_buf + rpos, len);
+            out->fsize -= len;
+            out->fpos  += len;
+            if (out->fsize == 0) {
+                spice_server_playback_put_samples (&out->sin, out->frame);
+                out->frame = out->fpos = NULL;
+            }
+        }
+        rpos = (rpos + len) % hw->samples;
+        samples -= len;
+    }
+    hw->rpos = rpos;
+    return decr;
+}
+
+static int line_out_write (SWVoiceOut *sw, void *buf, int len)
+{
+    return audio_pcm_sw_write (sw, buf, len);
+}
+
+static int line_out_ctl (HWVoiceOut *hw, int cmd, ...)
+{
+    SpiceVoiceOut *out = container_of (hw, SpiceVoiceOut, hw);
+
+    switch (cmd) {
+    case VOICE_ENABLE:
+        if (out->active) {
+            break;
+        }
+        out->active = 1;
+        rate_start (&out->rate);
+        spice_server_playback_start (&out->sin);
+        break;
+    case VOICE_DISABLE:
+        if (!out->active) {
+            break;
+        }
+        out->active = 0;
+        if (out->frame) {
+            memset (out->fpos, 0, out->fsize << 2);
+            spice_server_playback_put_samples (&out->sin, out->frame);
+            out->frame = out->fpos = NULL;
+        }
+        spice_server_playback_stop (&out->sin);
+        break;
+    case VOICE_VOLUME:
+        {
+#if ((SPICE_INTERFACE_PLAYBACK_MAJOR >= 1) && (SPICE_INTERFACE_PLAYBACK_MINOR >= 2))
+            SWVoiceOut *sw;
+            va_list ap;
+            uint16_t vol[2];
+
+            va_start (ap, cmd);
+            sw = va_arg (ap, SWVoiceOut *);
+            va_end (ap);
+
+            vol[0] = sw->vol.l / ((1ULL << 16) + 1);
+            vol[1] = sw->vol.r / ((1ULL << 16) + 1);
+            spice_server_playback_set_volume (&out->sin, 2, vol);
+            spice_server_playback_set_mute (&out->sin, sw->vol.mute);
+#endif
+            break;
+        }
+    }
+
+    return 0;
+}
+
+/* record */
+
+static int line_in_init(HWVoiceIn *hw, struct audsettings *as, void *drv_opaque)
+{
+    SpiceVoiceIn *in = container_of (hw, SpiceVoiceIn, hw);
+    struct audsettings settings;
+
+#if SPICE_INTERFACE_RECORD_MAJOR > 2 || SPICE_INTERFACE_RECORD_MINOR >= 3
+    settings.freq       = spice_server_get_best_record_rate(NULL);
+#else
+    settings.freq       = SPICE_INTERFACE_RECORD_FREQ;
+#endif
+    settings.nchannels  = SPICE_INTERFACE_RECORD_CHAN;
+    settings.fmt        = AUD_FMT_S16;
+    settings.endianness = AUDIO_HOST_ENDIANNESS;
+
+    audio_pcm_init_info (&hw->info, &settings);
+    hw->samples = LINE_IN_SAMPLES;
+    in->active = 0;
+
+    in->sin.base.sif = &record_sif.base;
+    qemu_spice_add_interface (&in->sin.base);
+#if SPICE_INTERFACE_RECORD_MAJOR > 2 || SPICE_INTERFACE_RECORD_MINOR >= 3
+    spice_server_set_record_rate(&in->sin, settings.freq);
+#endif
+    return 0;
+}
+
+static void line_in_fini (HWVoiceIn *hw)
+{
+    SpiceVoiceIn *in = container_of (hw, SpiceVoiceIn, hw);
+
+    spice_server_remove_interface (&in->sin.base);
+}
+
+static int line_in_run (HWVoiceIn *hw)
+{
+    SpiceVoiceIn *in = container_of (hw, SpiceVoiceIn, hw);
+    int num_samples;
+    int ready;
+    int len[2];
+    uint64_t delta_samp;
+    const uint32_t *samples;
+
+    if (!(num_samples = hw->samples - audio_pcm_hw_get_live_in (hw))) {
+        return 0;
+    }
+
+    delta_samp = rate_get_samples (&hw->info, &in->rate);
+    num_samples = audio_MIN (num_samples, delta_samp);
+
+    ready = spice_server_record_get_samples (&in->sin, in->samples, num_samples);
+    samples = in->samples;
+    if (ready == 0) {
+        static const uint32_t silence[LINE_IN_SAMPLES];
+        samples = silence;
+        ready = LINE_IN_SAMPLES;
+    }
+
+    num_samples = audio_MIN (ready, num_samples);
+
+    if (hw->wpos + num_samples > hw->samples) {
+        len[0] = hw->samples - hw->wpos;
+        len[1] = num_samples - len[0];
+    } else {
+        len[0] = num_samples;
+        len[1] = 0;
+    }
+
+    hw->conv (hw->conv_buf + hw->wpos, samples, len[0]);
+
+    if (len[1]) {
+        hw->conv (hw->conv_buf, samples + len[0], len[1]);
+    }
+
+    hw->wpos = (hw->wpos + num_samples) % hw->samples;
+
+    return num_samples;
+}
+
+static int line_in_read (SWVoiceIn *sw, void *buf, int size)
+{
+    return audio_pcm_sw_read (sw, buf, size);
+}
+
+static int line_in_ctl (HWVoiceIn *hw, int cmd, ...)
+{
+    SpiceVoiceIn *in = container_of (hw, SpiceVoiceIn, hw);
+
+    switch (cmd) {
+    case VOICE_ENABLE:
+        if (in->active) {
+            break;
+        }
+        in->active = 1;
+        rate_start (&in->rate);
+        spice_server_record_start (&in->sin);
+        break;
+    case VOICE_DISABLE:
+        if (!in->active) {
+            break;
+        }
+        in->active = 0;
+        spice_server_record_stop (&in->sin);
+        break;
+    case VOICE_VOLUME:
+        {
+#if ((SPICE_INTERFACE_RECORD_MAJOR >= 2) && (SPICE_INTERFACE_RECORD_MINOR >= 2))
+            SWVoiceIn *sw;
+            va_list ap;
+            uint16_t vol[2];
+
+            va_start (ap, cmd);
+            sw = va_arg (ap, SWVoiceIn *);
+            va_end (ap);
+
+            vol[0] = sw->vol.l / ((1ULL << 16) + 1);
+            vol[1] = sw->vol.r / ((1ULL << 16) + 1);
+            spice_server_record_set_volume (&in->sin, 2, vol);
+            spice_server_record_set_mute (&in->sin, sw->vol.mute);
+#endif
+            break;
+        }
+    }
+
+    return 0;
+}
+
+static struct audio_option audio_options[] = {
+    { /* end of list */ },
+};
+
+static struct audio_pcm_ops audio_callbacks = {
+    .init_out = line_out_init,
+    .fini_out = line_out_fini,
+    .run_out  = line_out_run,
+    .write    = line_out_write,
+    .ctl_out  = line_out_ctl,
+
+    .init_in  = line_in_init,
+    .fini_in  = line_in_fini,
+    .run_in   = line_in_run,
+    .read     = line_in_read,
+    .ctl_in   = line_in_ctl,
+};
+
+struct audio_driver spice_audio_driver = {
+    .name           = "spice",
+    .descr          = "spice audio driver",
+    .options        = audio_options,
+    .init           = spice_audio_init,
+    .fini           = spice_audio_fini,
+    .pcm_ops        = &audio_callbacks,
+    .max_voices_out = 1,
+    .max_voices_in  = 1,
+    .voice_size_out = sizeof (SpiceVoiceOut),
+    .voice_size_in  = sizeof (SpiceVoiceIn),
+#if ((SPICE_INTERFACE_PLAYBACK_MAJOR >= 1) && (SPICE_INTERFACE_PLAYBACK_MINOR >= 2))
+    .ctl_caps       = VOICE_VOLUME_CAP
+#endif
+};
+
+void qemu_spice_audio_init (void)
+{
+    spice_audio_driver.can_be_default = 1;
+}