sound/core/compress_offload.c

79 	struct snd_compr_runtime *runtime;
120 	runtime = kzalloc(sizeof(*runtime), GFP_KERNEL);
121 	if (!runtime) {
126 	runtime->state = SNDRV_PCM_STATE_OPEN;
127 	init_waitqueue_head(&runtime->sleep);
128 	data->stream.runtime = runtime;
133 		kfree(runtime);
143 	struct snd_compr_runtime *runtime = data->stream.runtime;
147 	switch (runtime->state) {
158 	if (!data->stream.runtime->dma_buffer_p)
159 		kfree(data->stream.runtime->buffer);
160 	kfree(data->stream.runtime);
174 		stream->runtime->total_bytes_transferred = tstamp->copied_total;
176 		stream->runtime->total_bytes_available = tstamp->copied_total;
187 	if (stream->runtime->total_bytes_available == 0 &&
188 			stream->runtime->state == SNDRV_PCM_STATE_SETUP &&
191 		return stream->runtime->buffer_size;
194 			stream->runtime->total_bytes_available,
195 			stream->runtime->total_bytes_transferred);
196 	if (stream->runtime->total_bytes_available ==
197 				stream->runtime->total_bytes_transferred) {
200 			return stream->runtime->buffer_size;
207 	avail->avail = stream->runtime->total_bytes_available -
208 			stream->runtime->total_bytes_transferred;
210 		avail->avail = stream->runtime->buffer_size - avail->avail;
232 	switch (stream->runtime->state) {
252 	struct snd_compr_runtime *runtime = stream->runtime;
254 	u64 app_pointer = div64_u64(runtime->total_bytes_available,
255 				    runtime->buffer_size);
256 	app_pointer = runtime->total_bytes_available -
257 		      (app_pointer * runtime->buffer_size);
259 	dstn = runtime->buffer + app_pointer;
262 	if (count < runtime->buffer_size - app_pointer) {
266 		copy = runtime->buffer_size - app_pointer;
269 		if (copy_from_user(runtime->buffer, buf + copy, count - copy))
292 	switch (stream->runtime->state) {
314 		stream->runtime->total_bytes_available += retval;
318 	if (stream->runtime->state == SNDRV_PCM_STATE_SETUP) {
319 		stream->runtime->state = SNDRV_PCM_STATE_PREPARED;
345 	switch (stream->runtime->state) {
366 		stream->runtime->total_bytes_transferred += retval;
398 	switch (stream->runtime->state) {
406 	poll_wait(f, &stream->runtime->sleep, wait);
411 	switch (stream->runtime->state) {
417 		stream->runtime->state = SNDRV_PCM_STATE_SETUP;
422 		if (avail >= stream->runtime->fragment_size)
479 	if (snd_BUG_ON(!(stream) || !(stream)->runtime))
492 	stream->runtime->dma_bytes = size;
499 	struct snd_compr_runtime *runtime;
501 	if (snd_BUG_ON(!(stream) || !(stream)->runtime))
503 	runtime = stream->runtime;
504 	if (runtime->dma_area == NULL)
506 	if (runtime->dma_buffer_p != &stream->dma_buffer) {
508 		snd_dma_free_pages(runtime->dma_buffer_p);
509 		kfree(runtime->dma_buffer_p);
531 		if (stream->runtime->dma_buffer_p) {
533 			if (buffer_size > stream->runtime->dma_buffer_p->bytes)
537 				buffer = stream->runtime->dma_buffer_p->area;
546 	stream->runtime->fragment_size = params->buffer.fragment_size;
547 	stream->runtime->fragments = params->buffer.fragments;
548 	stream->runtime->buffer = buffer;
549 	stream->runtime->buffer_size = buffer_size;
577 	if (stream->runtime->state == SNDRV_PCM_STATE_OPEN || stream->next_track) {
604 		stream->runtime->state = SNDRV_PCM_STATE_SETUP;
691 	switch (stream->runtime->state) {
695 			stream->runtime->state = SNDRV_PCM_STATE_PAUSED;
714 	switch (stream->runtime->state) {
718 			stream->runtime->state = SNDRV_PCM_STATE_RUNNING;
737 	switch (stream->runtime->state) {
750 		stream->runtime->state = SNDRV_PCM_STATE_RUNNING;
758 	switch (stream->runtime->state) {
774 		stream->runtime->total_bytes_available = 0;
775 		stream->runtime->total_bytes_transferred = 0;
789 	wake_up(&stream->runtime->sleep);
806 	if (stream->runtime->state == state)
809 	stream->runtime->state = state;
831 	stream->runtime->state = SNDRV_PCM_STATE_DRAINING;
840 	ret = wait_event_interruptible(stream->runtime->sleep,
841 			(stream->runtime->state != SNDRV_PCM_STATE_DRAINING));
848 	wake_up(&stream->runtime->sleep);
858 	switch (stream->runtime->state) {
873 		wake_up(&stream->runtime->sleep);
885 	if (stream->runtime->state != SNDRV_PCM_STATE_RUNNING)
910 	switch (stream->runtime->state) {
934 		wake_up(&stream->runtime->sleep);