diff --git a/compress.c b/compress.c
new file mode 100644
index 0000000..5398e10
--- /dev/null
+++ b/compress.c
@@ -0,0 +1,539 @@
+/*
+ * BSD LICENSE
+ *
+ * tinycompress library for compress audio offload in alsa
+ * Copyright (c) 2011-2012, Intel Corporation
+ * All rights reserved.
+ *
+ * Author: Vinod Koul <vinod.koul@linux.intel.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * Neither the name of Intel Corporation nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * LGPL LICENSE
+ *
+ * tinycompress library for compress audio offload in alsa
+ * Copyright (c) 2011-2012, Intel Corporation.
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU Lesser General Public License,
+ * version 2.1, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to
+ * the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <stdarg.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <poll.h>
+#include <stdbool.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/time.h>
+#include <limits.h>
+
+#include <linux/types.h>
+#include <linux/ioctl.h>
+#define __force
+#define __bitwise
+#define __user
+#include <sound/asound.h>
+#include <sound/compress_params.h>
+#include <sound/compress_offload.h>
+#include <tinycompress/tinycompress.h>
+
+#define COMPR_ERR_MAX 128
+
+/* Default maximum time we will wait in a poll() - 20 seconds */
+#define DEFAULT_MAX_POLL_WAIT_MS    20000
+
+struct compress {
+	int fd;
+	unsigned int flags;
+	char error[COMPR_ERR_MAX];
+	struct compr_config *config;
+	int running;
+	int max_poll_wait_ms;
+	unsigned int gapless_metadata;
+	unsigned int next_track;
+};
+
+static int oops(struct compress *compress, int e, const char *fmt, ...)
+{
+	va_list ap;
+	int sz;
+
+	va_start(ap, fmt);
+	vsnprintf(compress->error, COMPR_ERR_MAX, fmt, ap);
+	va_end(ap);
+	sz = strlen(compress->error);
+
+	if (errno)
+		snprintf(compress->error + sz, COMPR_ERR_MAX - sz,
+			": %s", strerror(e));
+	return e;
+}
+
+const char *compress_get_error(struct compress *compress)
+{
+	return compress->error;
+}
+static struct compress bad_compress = {
+	.fd = -1,
+};
+
+int is_compress_running(struct compress *compress)
+{
+	return ((compress->fd > 0) && compress->running) ? 1 : 0;
+}
+
+int is_compress_ready(struct compress *compress)
+{
+	return (compress->fd > 0) ? 1 : 0;
+}
+
+static int get_compress_version(struct compress *compress)
+{
+	int version = 0;
+
+	if (ioctl(compress->fd, SNDRV_COMPRESS_IOCTL_VERSION, &version)) {
+		oops(compress, errno, "cant read version");
+		return -1;
+	}
+	return version;
+}
+
+static bool _is_codec_supported(struct compress *compress, struct compr_config *config,
+				const struct snd_compr_caps *caps)
+{
+	bool codec = false;
+	unsigned int i;
+
+	for (i = 0; i < caps->num_codecs; i++) {
+		if (caps->codecs[i] == config->codec->id) {
+			/* found the codec */
+			codec = true;
+			break;
+		}
+	}
+	if (codec == false) {
+		oops(compress, -ENXIO, "this codec is not supported");
+		return false;
+	}
+
+	if (config->fragment_size < caps->min_fragment_size) {
+		oops(compress, -EINVAL, "requested fragment size %d is below min supported %d",
+			config->fragment_size, caps->min_fragment_size);
+		return false;
+	}
+	if (config->fragment_size > caps->max_fragment_size) {
+		oops(compress, -EINVAL, "requested fragment size %d is above max supported %d",
+			config->fragment_size, caps->max_fragment_size);
+		return false;
+	}
+	if (config->fragments < caps->min_fragments) {
+		oops(compress, -EINVAL, "requested fragments %d are below min supported %d",
+			config->fragments, caps->min_fragments);
+		return false;
+	}
+	if (config->fragments > caps->max_fragments) {
+		oops(compress, -EINVAL, "requested fragments %d are above max supported %d",
+			config->fragments, caps->max_fragments);
+		return false;
+	}
+
+	/* TODO: match the codec properties */
+	return true;
+}
+
+static bool _is_codec_type_supported(int fd, struct snd_codec *codec)
+{
+	struct snd_compr_caps caps;
+	bool found = false;
+	unsigned int i;
+
+	if (ioctl(fd, SNDRV_COMPRESS_GET_CAPS, &caps)) {
+		oops(&bad_compress, errno, "cannot get device caps");
+		return false;
+	}
+
+	for (i = 0; i < caps.num_codecs; i++) {
+		if (caps.codecs[i] == codec->id) {
+			/* found the codec */
+			found = true;
+			break;
+		}
+	}
+	/* TODO: match the codec properties */
+	return found;
+}
+
+static inline void
+fill_compress_params(struct compr_config *config, struct snd_compr_params *params)
+{
+	params->buffer.fragment_size = config->fragment_size;
+	params->buffer.fragments = config->fragments;
+	memcpy(&params->codec, config->codec, sizeof(params->codec));
+}
+
+struct compress *compress_open(unsigned int card, unsigned int device,
+		unsigned int flags, struct compr_config *config)
+{
+	struct compress *compress;
+	struct snd_compr_params params;
+	struct snd_compr_caps caps;
+	char fn[256];
+
+	compress = calloc(1, sizeof(struct compress));
+	if (!compress || !config) {
+		oops(&bad_compress, errno, "cannot allocate compress object");
+		return &bad_compress;
+	}
+
+	compress->next_track = 0;
+	compress->gapless_metadata = 0;
+	compress->config = calloc(1, sizeof(*config));
+	if (!compress->config)
+		goto input_fail;
+	memcpy(compress->config, config, sizeof(*compress->config));
+
+	snprintf(fn, sizeof(fn), "/dev/snd/comprC%uD%u", card, device);
+
+	compress->max_poll_wait_ms = DEFAULT_MAX_POLL_WAIT_MS;
+
+	compress->flags = flags;
+	if (!((flags & COMPRESS_OUT) || (flags & COMPRESS_IN))) {
+		oops(&bad_compress, -EINVAL, "can't deduce device direction from given flags");
+		goto config_fail;
+	}
+	if (flags & COMPRESS_OUT) {
+		/* this should be removed once we have capture tested */
+		oops(&bad_compress, -EINVAL, "this version doesnt support capture");
+		goto config_fail;
+	}
+
+	compress->fd = open(fn, O_WRONLY);
+	if (compress->fd < 0) {
+		oops(&bad_compress, errno, "cannot open device '%s'", fn);
+		goto config_fail;
+	}
+
+	if (ioctl(compress->fd, SNDRV_COMPRESS_GET_CAPS, &caps)) {
+		oops(compress, errno, "cannot get device caps");
+		goto codec_fail;
+	}
+
+	/* If caller passed "don't care" fill in default values */
+	if ((config->fragment_size == 0) || (config->fragments == 0)) {
+		config->fragment_size = caps.min_fragment_size;
+		config->fragments = caps.max_fragments;
+	}
+
+#if 0
+	/* FIXME need to turn this On when DSP supports
+	 * and treat in no support case
+	 */
+	if (_is_codec_supported(compress, config, &caps) == false) {
+		oops(compress, errno, "codec not supported\n");
+		goto codec_fail;
+	}
+#endif
+	fill_compress_params(config, &params);
+
+	if (ioctl(compress->fd, SNDRV_COMPRESS_SET_PARAMS, &params)) {
+		oops(&bad_compress, errno, "cannot set device");
+		goto codec_fail;
+	}
+
+	return compress;
+
+codec_fail:
+	close(compress->fd);
+	compress->fd = -1;
+config_fail:
+	free(compress->config);
+input_fail:
+	free(compress);
+	return &bad_compress;
+}
+
+void compress_close(struct compress *compress)
+{
+	if (compress == &bad_compress)
+		return;
+
+	if (compress->fd >= 0)
+		close(compress->fd);
+	compress->running = 0;
+	compress->fd = -1;
+	free(compress->config);
+	free(compress);
+}
+
+int compress_get_hpointer(struct compress *compress,
+		unsigned int *avail, struct timespec *tstamp)
+{
+	struct snd_compr_avail kavail;
+	__u64 time;
+
+	if (!is_compress_ready(compress))
+		return oops(compress, -ENODEV, "device not ready");
+
+	if (ioctl(compress->fd, SNDRV_COMPRESS_AVAIL, &kavail))
+		return oops(compress, errno, "cannot get avail");
+	if (0 == kavail.tstamp.sampling_rate)
+		return oops(compress, errno, "invalid paramter");
+	*avail = (unsigned int)kavail.avail;
+	time = kavail.tstamp.pcm_io_frames / kavail.tstamp.sampling_rate;
+	tstamp->tv_sec = time;
+	time = kavail.tstamp.pcm_io_frames % kavail.tstamp.sampling_rate;
+	tstamp->tv_nsec = time * 1000000000 / kavail.tstamp.sampling_rate;
+	return 0;
+}
+
+int compress_get_tstamp(struct compress *compress,
+			unsigned long *samples, unsigned int *sampling_rate)
+{
+	struct snd_compr_tstamp ktstamp;
+
+	if (!is_compress_ready(compress))
+		return oops(compress, -ENODEV, "device not ready");
+
+	if (ioctl(compress->fd, SNDRV_COMPRESS_TSTAMP, &ktstamp))
+		return oops(compress, errno, "cannot get tstamp");
+
+	*samples = ktstamp.pcm_io_frames;
+	*sampling_rate = ktstamp.sampling_rate;
+	return 0;
+}
+
+int compress_write(struct compress *compress, const void *buf, unsigned int size)
+{
+	struct snd_compr_avail avail;
+	struct pollfd fds;
+	int to_write = 0;	/* zero indicates we haven't written yet */
+	int written, total = 0, ret;
+	const char* cbuf = buf;
+	const unsigned int frag_size = compress->config->fragment_size;
+
+	if (!(compress->flags & COMPRESS_IN))
+		return oops(compress, -EINVAL, "Invalid flag set");
+	if (!is_compress_ready(compress))
+		return oops(compress, -ENODEV, "device not ready");
+	fds.fd = compress->fd;
+	fds.events = POLLOUT;
+
+	/*TODO: treat auto start here first */
+	while (size) {
+		if (ioctl(compress->fd, SNDRV_COMPRESS_AVAIL, &avail))
+			return oops(compress, errno, "cannot get avail");
+
+		if ( (avail.avail < frag_size)
+			|| ((to_write != 0) && (avail.avail < size)) ) {
+			/* not enough space for one fragment, or we have done
+			 * a short write and there isn't enough space for all
+			 * the remaining data
+			 */
+			ret = poll(&fds, 1, compress->max_poll_wait_ms);
+			/* A pause will cause -EBADFD or zero.
+			 * This is not an error, just stop writing */
+			if ((ret == 0) || (ret == -EBADFD))
+				break;
+			if (ret < 0)
+				return oops(compress, errno, "poll error");
+			if (fds.revents & POLLOUT) {
+				continue;
+			}
+			if (fds.revents & POLLERR) {
+				return oops(compress, -EIO, "poll returned error!");
+			}
+		}
+		/* write avail bytes */
+		if (size > avail.avail)
+			to_write =  avail.avail;
+		else
+			to_write = size;
+		written = write(compress->fd, cbuf, to_write);
+		/* If play was paused the write returns -EBADFD */
+		if (written == -EBADFD)
+			break;
+		if (written < 0)
+			return oops(compress, errno, "write failed!");
+
+		size -= written;
+		cbuf += written;
+		total += written;
+	}
+	return total;
+}
+
+int compress_read(struct compress *compress, void *buf, unsigned int size)
+{
+	return oops(compress, -ENOTTY, "Not supported yet in lib");
+}
+
+int compress_start(struct compress *compress)
+{
+	if (!is_compress_ready(compress))
+		return oops(compress, -ENODEV, "device not ready");
+	if (ioctl(compress->fd, SNDRV_COMPRESS_START))
+		return oops(compress, errno, "cannot start the stream");
+	compress->running = 1;
+	return 0;
+
+}
+
+int compress_stop(struct compress *compress)
+{
+	if (!is_compress_running(compress))
+		return oops(compress, -ENODEV, "device not ready");
+	if (ioctl(compress->fd, SNDRV_COMPRESS_STOP))
+		return oops(compress, errno, "cannot stop the stream");
+	return 0;
+}
+
+int compress_pause(struct compress *compress)
+{
+	if (!is_compress_running(compress))
+		return oops(compress, -ENODEV, "device not ready");
+	if (ioctl(compress->fd, SNDRV_COMPRESS_PAUSE))
+		return oops(compress, errno, "cannot pause the stream");
+	return 0;
+}
+
+int compress_resume(struct compress *compress)
+{
+	if (ioctl(compress->fd, SNDRV_COMPRESS_RESUME))
+		return oops(compress, errno, "cannot resume the stream");
+	return 0;
+}
+
+int compress_drain(struct compress *compress)
+{
+	if (!is_compress_running(compress))
+		return oops(compress, -ENODEV, "device not ready");
+	if (ioctl(compress->fd, SNDRV_COMPRESS_DRAIN))
+		return oops(compress, errno, "cannot drain the stream");
+	return 0;
+}
+
+int compress_partial_drain(struct compress *compress)
+{
+	if (!is_compress_running(compress))
+		return oops(compress, -ENODEV, "device not ready");
+
+	if (!compress->next_track)
+		return oops(compress, -EPERM, "next track not signalled");
+	if (ioctl(compress->fd, SNDRV_COMPRESS_PARTIAL_DRAIN))
+		return oops(compress, errno, "cannot drain the stream\n");
+	compress->next_track = 0;
+	return 0;
+}
+
+int compress_next_track(struct compress *compress)
+{
+	if (!is_compress_running(compress))
+		return oops(compress, -ENODEV, "device not ready");
+
+	if (!compress->gapless_metadata)
+		return oops(compress, -EPERM, "metadata not set");
+	if (ioctl(compress->fd, SNDRV_COMPRESS_NEXT_TRACK))
+		return oops(compress, errno, "cannot set next track\n");
+	compress->next_track = 1;
+	compress->gapless_metadata = 0;
+	return 0;
+}
+
+int compress_set_gapless_metadata(struct compress *compress,
+	struct compr_gapless_mdata *mdata)
+{
+	struct snd_compr_metadata metadata;
+	int version;
+
+	if (!is_compress_ready(compress))
+		return oops(compress, -ENODEV, "device not ready");
+
+	version = get_compress_version(compress);
+	if (version <= 0)
+		return -1;
+
+	if (version < SNDRV_PROTOCOL_VERSION(0, 1, 1))
+		return oops(compress, -ENXIO, "gapless apis not supported in kernel");
+
+	metadata.key = SNDRV_COMPRESS_ENCODER_PADDING;
+	metadata.value[0] = mdata->encoder_padding;
+	if (ioctl(compress->fd, SNDRV_COMPRESS_SET_METADATA, &metadata))
+		return oops(compress, errno, "can't set metadata for stream\n");
+
+	metadata.key = SNDRV_COMPRESS_ENCODER_DELAY;
+	metadata.value[0] = mdata->encoder_delay;
+	if (ioctl(compress->fd, SNDRV_COMPRESS_SET_METADATA, &metadata))
+		return oops(compress, errno, "can't set metadata for stream\n");
+	compress->gapless_metadata = 1;
+	return 0;
+}
+
+bool is_codec_supported(unsigned int card, unsigned int device,
+		unsigned int flags, struct snd_codec *codec)
+{
+	unsigned int dev_flag;
+	bool ret;
+	int fd;
+	char fn[256];
+
+	snprintf(fn, sizeof(fn), "/dev/snd/comprC%uD%u", card, device);
+
+	if (flags & COMPRESS_OUT)
+		dev_flag = O_RDONLY;
+	else
+		dev_flag = O_WRONLY;
+
+	fd = open(fn, dev_flag);
+	if (fd < 0)
+		return oops(&bad_compress, errno, "cannot open device '%s'", fn);
+
+	ret = _is_codec_type_supported(fd, codec);
+
+	close(fd);
+	return ret;
+}
+
+void compress_set_max_poll_wait(struct compress *compress, int milliseconds)
+{
+	compress->max_poll_wait_ms = milliseconds;
+}
+