87 	struct snd_compr_runtime *runtime;  in snd_compr_open()  local
125 	runtime = kzalloc(sizeof(*runtime), GFP_KERNEL);  in snd_compr_open()
126 	if (!runtime) {  in snd_compr_open()
131 	runtime->state = SNDRV_PCM_STATE_OPEN;  in snd_compr_open()
132 	init_waitqueue_head(&runtime->sleep);  in snd_compr_open()
133 	data->stream.runtime = runtime;  in snd_compr_open()
139 		kfree(runtime);  in snd_compr_open()
149 	struct snd_compr_runtime *runtime = data->stream.runtime;  in snd_compr_free()  local
151 	switch (runtime->state) {  in snd_compr_free()
162 	kfree(data->stream.runtime->buffer);  in snd_compr_free()
163 	kfree(data->stream.runtime);  in snd_compr_free()
177 		stream->runtime->total_bytes_transferred = tstamp->copied_total;  in snd_compr_update_tstamp()
179 		stream->runtime->total_bytes_available = tstamp->copied_total;  in snd_compr_update_tstamp()
190 	if (stream->runtime->total_bytes_available == 0 &&  in snd_compr_calc_avail()
191 			stream->runtime->state == SNDRV_PCM_STATE_SETUP &&  in snd_compr_calc_avail()
194 		return stream->runtime->buffer_size;  in snd_compr_calc_avail()
197 			stream->runtime->total_bytes_available,  in snd_compr_calc_avail()
198 			stream->runtime->total_bytes_transferred);  in snd_compr_calc_avail()
199 	if (stream->runtime->total_bytes_available ==  in snd_compr_calc_avail()
200 				stream->runtime->total_bytes_transferred) {  in snd_compr_calc_avail()
203 			return stream->runtime->buffer_size;  in snd_compr_calc_avail()
210 	avail->avail = stream->runtime->total_bytes_available -  in snd_compr_calc_avail()
211 			stream->runtime->total_bytes_transferred;  in snd_compr_calc_avail()
213 		avail->avail = stream->runtime->buffer_size - avail->avail;  in snd_compr_calc_avail()
246 	struct snd_compr_runtime *runtime = stream->runtime;  in snd_compr_write_data()  local
248 	u64 app_pointer = div64_u64(runtime->total_bytes_available,  in snd_compr_write_data()
249 				    runtime->buffer_size);  in snd_compr_write_data()
250 	app_pointer = runtime->total_bytes_available -  in snd_compr_write_data()
251 		      (app_pointer * runtime->buffer_size);  in snd_compr_write_data()
253 	dstn = runtime->buffer + app_pointer;  in snd_compr_write_data()
256 	if (count < runtime->buffer_size - app_pointer) {  in snd_compr_write_data()
260 		copy = runtime->buffer_size - app_pointer;  in snd_compr_write_data()
263 		if (copy_from_user(runtime->buffer, buf + copy, count - copy))  in snd_compr_write_data()
286 	if (stream->runtime->state != SNDRV_PCM_STATE_SETUP &&  in snd_compr_write()
287 			stream->runtime->state != SNDRV_PCM_STATE_RUNNING) {  in snd_compr_write()
305 		stream->runtime->total_bytes_available += retval;  in snd_compr_write()
309 	if (stream->runtime->state == SNDRV_PCM_STATE_SETUP) {  in snd_compr_write()
310 		stream->runtime->state = SNDRV_PCM_STATE_PREPARED;  in snd_compr_write()
337 	switch (stream->runtime->state) {  in snd_compr_read()
360 		stream->runtime->total_bytes_transferred += retval;  in snd_compr_read()
394 	if (stream->runtime->state == SNDRV_PCM_STATE_OPEN) {  in snd_compr_poll()
398 	poll_wait(f, &stream->runtime->sleep, wait);  in snd_compr_poll()
403 	switch (stream->runtime->state) {  in snd_compr_poll()
409 		stream->runtime->state = SNDRV_PCM_STATE_SETUP;  in snd_compr_poll()
414 		if (avail >= stream->runtime->fragment_size)  in snd_compr_poll()
492 	stream->runtime->fragment_size = params->buffer.fragment_size;  in snd_compr_allocate_buffer()
493 	stream->runtime->fragments = params->buffer.fragments;  in snd_compr_allocate_buffer()
494 	stream->runtime->buffer = buffer;  in snd_compr_allocate_buffer()
495 	stream->runtime->buffer_size = buffer_size;  in snd_compr_allocate_buffer()
522 	if (stream->runtime->state == SNDRV_PCM_STATE_OPEN) {  in snd_compr_set_params()
553 			stream->runtime->state = SNDRV_PCM_STATE_SETUP;  in snd_compr_set_params()
555 			stream->runtime->state = SNDRV_PCM_STATE_PREPARED;  in snd_compr_set_params()
647 	if (stream->runtime->state != SNDRV_PCM_STATE_RUNNING)  in snd_compr_pause()
651 		stream->runtime->state = SNDRV_PCM_STATE_PAUSED;  in snd_compr_pause()
659 	if (stream->runtime->state != SNDRV_PCM_STATE_PAUSED)  in snd_compr_resume()
663 		stream->runtime->state = SNDRV_PCM_STATE_RUNNING;  in snd_compr_resume()
671 	if (stream->runtime->state != SNDRV_PCM_STATE_PREPARED)  in snd_compr_start()
675 		stream->runtime->state = SNDRV_PCM_STATE_RUNNING;  in snd_compr_start()
683 	if (stream->runtime->state == SNDRV_PCM_STATE_PREPARED ||  in snd_compr_stop()
684 			stream->runtime->state == SNDRV_PCM_STATE_SETUP)  in snd_compr_stop()
689 		stream->runtime->total_bytes_available = 0;  in snd_compr_stop()
690 		stream->runtime->total_bytes_transferred = 0;  in snd_compr_stop()
707 	stream->runtime->state = SNDRV_PCM_STATE_DRAINING;  in snd_compress_wait_for_drain()
716 	ret = wait_event_interruptible(stream->runtime->sleep,  in snd_compress_wait_for_drain()
717 			(stream->runtime->state != SNDRV_PCM_STATE_DRAINING));  in snd_compress_wait_for_drain()
724 	wake_up(&stream->runtime->sleep);  in snd_compress_wait_for_drain()
734 	if (stream->runtime->state == SNDRV_PCM_STATE_PREPARED ||  in snd_compr_drain()
735 			stream->runtime->state == SNDRV_PCM_STATE_SETUP)  in snd_compr_drain()
741 		wake_up(&stream->runtime->sleep);  in snd_compr_drain()
753 	if (stream->runtime->state != SNDRV_PCM_STATE_RUNNING)  in snd_compr_next_track()
773 	if (stream->runtime->state == SNDRV_PCM_STATE_PREPARED ||  in snd_compr_partial_drain()
774 			stream->runtime->state == SNDRV_PCM_STATE_SETUP)  in snd_compr_partial_drain()
783 		wake_up(&stream->runtime->sleep);  in snd_compr_partial_drain()