3 Commits

Author	SHA1	Message	Date
Takashi Iwai	54de6bc8b2	ALSA: ctxfi - Optimize the native timer handling using wc counter ... Optimize the timer update routine to look up wall clock once instead of checking the position of each stream at each timer update. Signed-off-by: Takashi Iwai <tiwai@suse.de>	2009-06-08 12:38:54 +02:00
Takashi Iwai	28cd4aa43d	ALSA: ctxfi - Add missing inclusion of linux/math64.h ... Signed-off-by: Takashi Iwai <tiwai@suse.de>	2009-06-05 18:07:12 +02:00
Takashi Iwai	b7bbf87608	ALSA: ctxfi - Use native timer interrupt on emu20k1 ... emu20k1 has a native timer interrupt based on the audio clock, which is more accurate than the system timer (from the synchronization POV). This patch adds the code to handle this with multiple streams. The system timer is still used on emu20k2, and can be used also for emu20k1 easily by changing USE_SYSTEM_TIMER to 1 in cttimer.c. Signed-off-by: Takashi Iwai <tiwai@suse.de>	2009-06-05 16:44:13 +02:00