Commit Graph

6 Commits

Author SHA1 Message Date
Frank Schaefer e4b7131dd5 [media] em28xx: add basic support for OmniVision OV2640 sensors
This sensor is used by the "SpeedLink Vicious And Devine Laplace webcam" and
others. It supports resolutions up to 1600x1200 (at 7-8 fps), but for
resolutions higher than 640x480, further driver changes will be necessary,
such as sensor output resolution switching (including further configuration
changes), bridge xclk adjustment and disabling of 16 bit (12 bit) output formats
at high resolutions. Image quality should also needs to be improved.

Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-29 06:42:03 -03:00
Frank Schaefer 52f1f2303f [media] em28xx: add comment about Samsung and Kodak sensor probing addresses
The Windows driver also probes at least two further i2c addresses (0x22 >> 1
and 0x66 >> 1). I've got some hints that they are very likely used by Samsung
and Kodak sensors, which are known to be used in Empia devices, too.
We havn't seen any devices using these sensors yet and don't know how to probe
them properly, so leave a comment.

Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-29 06:40:47 -03:00
Frank Schaefer bde0368432 [media] em28xx: add probing procedure for OmniVision sensors
OmniVision sensors are used as well in Empiatech based cameras such as the
"SpeedLink Vicious And Devine Laplace" webcam (EM2765 + Omnivision OV2640).
With this patch applied, OminiVision sensors with 8 bit address and register
width are detected (recent models have a 16 bit address width and use different
client addresses).
The most commonly used sensors (including the ones listed by Empiatech) are
detected properly, although there is no support for them yet.

Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-29 06:40:10 -03:00
Frank Schaefer 0af0b25a64 [media] em28xx: move the probing of Micron sensors to a separate function
Other sensors like the ones from OmniVision need a different probing procedure,
so it makes sense have separate functions for each manufacturer/sensor type.

Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-29 06:39:06 -03:00
Frank Schaefer 176013b19e [media] em28xx: detect further Micron sensors
Add further Micron chip IDs to be able to identify all Micron sensors listed
by Empiatech.
Also probe the two alternate i2c addresses used by Micron sensors with 8 bit
address and 16 bit register width.

Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-29 06:38:08 -03:00
Frank Schaefer 855ff38e88 [media] em28xx: move sensor code to a separate source code file em28xx-camera.c
em28xx-cards.c is very large and the sensor/camera related code is growing,
so move this code to a separate source code file em28xx-camera.c.

Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-29 06:36:20 -03:00