C++ (Cpp) line6_wait_clear_audio_in_urbs示例

示例#1

文件： pcm.c 项目： Cool-Joe/imx23-audio

int line6_pcm_release(struct snd_line6_pcm *line6pcm, int channels)
{
	unsigned long flags_old, flags_new;

	do {
		flags_old = ACCESS_ONCE(line6pcm->flags);
		flags_new = flags_old & ~channels;
	} while (cmpxchg(&line6pcm->flags, flags_old, flags_new) != flags_old);

	if (test_flags(flags_new, flags_old, LINE6_BITS_CAPTURE_STREAM))
		line6_unlink_audio_in_urbs(line6pcm);

	if (test_flags(flags_new, flags_old, LINE6_BITS_CAPTURE_BUFFER)) {
		line6_wait_clear_audio_in_urbs(line6pcm);
		line6_free_capture_buffer(line6pcm);
	}

	if (test_flags(flags_new, flags_old, LINE6_BITS_PLAYBACK_STREAM))
		line6_unlink_audio_out_urbs(line6pcm);

	if (test_flags(flags_new, flags_old, LINE6_BITS_PLAYBACK_BUFFER)) {
		line6_wait_clear_audio_out_urbs(line6pcm);
		line6_free_playback_buffer(line6pcm);
	}

	return 0;
}

示例#2

文件： capture.c 项目： 7799/linux

/*
	Unlink all currently active capture URBs, and wait for finishing.
*/
void line6_unlink_wait_clear_audio_in_urbs(struct snd_line6_pcm *line6pcm)
{
	line6_unlink_audio_in_urbs(line6pcm);
	line6_wait_clear_audio_in_urbs(line6pcm);
}