summaryrefslogtreecommitdiff
path: root/linux/drivers/media/video/cx18/cx18-av-audio.c
AgeCommit message (Collapse)Author
2008-07-25cx18: Lock the aux PLL to the video pixle rate for analog capturesAndy Walls
From: Andy Walls <awalls@radix.net> cx18: Lock the aux PLL to the video pixel rate for analog captures. The datasheet for the CX25840 says this is important for MPEG encoding applications. To ensure the PLL locking was correct, also fixed the aux PLL's multiplier to be computed based on a precise crystal freq of 4.5 MHz/286 * 455/2 * 8 = 28636363.6363... instead of the imporperly rounded 28636363. Signed-off-by: Andy Walls <awalls@radix.net>
2008-07-23cx18: Fix 32 kHz audio sample output rate for analog tuner SIF inputAndy Walls
From: Andy Walls <awalls@radix.net> cx18: Fix 32 kHz audio sample output rate for analog tuner SIF input so it works. The AUX_PLL VCO was being operated at 196.6 MHz out of the spec'ed 200-600 MHz range. Fixed the multipler and post dividers to operate the VCO within specification and added comments on how magic numbers are derived. Thanks to Hans Verkuil for pointing out this interesting problem to solve. Signed-off-by: Andy Walls <awalls@radix.net>
2008-06-28cx18: set correct audio inputs for tuner and line-in 2.Hans Verkuil
From: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
2008-04-28cx18: new driver for the Conexant CX23418 MPEG encoder chipHans Verkuil
From: Hans Verkuil <hverkuil@xs4all.nl> Many thanks to Steve Toth from Hauppauge and Nattu Dakshinamurthy from Conexant for their support. I am in particular thankful to Hauppauge since without their help this driver would not exist. It should also be noted that Steve did the work to get the DVB part up and running. Thank you! Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Steven Toth <stoth@hauppauge.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: G. Andrew Walls <awalls@radix.net>