84a81e7fef
* Imported SiPix StyleCam Blink driver from
Vincent Sanders <vince@kyllikki.org>
* Cleaned it up and made it work, still dumps compressed images.
git-svn-id: https://svn.code.sf.net/p/gphoto/code/trunk/libgphoto2@5327 67ed7778-7388-44ab-90cf-0a291f65f57c
135 lines
2.3 KiB
Plaintext
135 lines
2.3 KiB
Plaintext
Sipix blink usb "toy" camera
|
|
|
|
Stuff you need to know to control the *still* part of the camera
|
|
These are probably incomplete! but they do appear to work
|
|
|
|
usb vendor id = 0x0851
|
|
usb product id = 0x1542
|
|
|
|
device has 8megs ram and can take images at 640x480 and 320x240(ish)
|
|
|
|
usb requests (snooped from doze driver - there listed in the order they appear)
|
|
all control requests are on the control pipe
|
|
bulk is only used to read data and is on interface 1
|
|
|
|
|
|
Request
|
|
-------
|
|
no idea what this is for probably camera init?
|
|
|
|
bmRequestType=c0 Vendor,device to host
|
|
bRequest = 5
|
|
wValue = 1
|
|
Index = 0
|
|
Length = 2
|
|
|
|
Result:2bytes
|
|
contains: 01 00
|
|
|
|
|
|
|
|
Request
|
|
-------
|
|
again no idea - possibly camera id? - only first 6 bytes used
|
|
bmRequestType=c0 Vendor,device to host
|
|
bRequest = 5
|
|
wValue = 0
|
|
Index = 0
|
|
Length = 8
|
|
|
|
Result:8bytes
|
|
contains:01 06 79 10 3e 1e 00 00
|
|
|
|
|
|
Request
|
|
-------
|
|
Get picture count
|
|
|
|
bmRequestType=c0 Vendor,device to host
|
|
bRequest = 0
|
|
wValue = 0
|
|
Index = 0
|
|
Length = 8
|
|
|
|
Result:2bytes
|
|
contains:04 00 (there were 4 pics in device)
|
|
|
|
|
|
|
|
Request
|
|
-------
|
|
|
|
Gets size of specified image, odd in that request is repeated untill
|
|
first byte in returned data changes to 0
|
|
|
|
The returned size is in "blocks" these are 0x100 bytes long eithr that
|
|
or ive cocked up where the size field is by a byte ;-)
|
|
|
|
bmRequestType=c0 Vendor,device to host
|
|
bRequest = 1
|
|
wValue = 0 (image index from 0)
|
|
Index = 1
|
|
Length = 8
|
|
|
|
Result:8bytes
|
|
contains:01 00 00 00 00 00 00 00
|
|
|
|
untill value changes
|
|
Result:8bytes
|
|
contains:00 00 10 01 00 00 00 00
|
|
|
|
|
|
8 bytes break down into
|
|
byte 00:ready 0 - yes 1 -no
|
|
|
|
byte 01: size 0
|
|
02: size 1
|
|
03: size 2
|
|
04: size 3
|
|
05: format flags
|
|
|
|
Image Size: Upper 3 bits: (x >> 5)
|
|
|
|
0 - 640x480
|
|
1 - 352x288
|
|
2 - 176x144
|
|
3 - 320x240
|
|
4 - 800x592
|
|
5 - 160x120
|
|
|
|
Unknown: Lower 2 bits ( x & 0x03)
|
|
|
|
0 -> 2
|
|
2 -> 1
|
|
3 -> 0
|
|
1 -> ?
|
|
|
|
Unknown: Mid 3 bits ( (x >> 2) & 0x07)
|
|
|
|
|
|
|
|
06
|
|
07
|
|
|
|
|
|
request
|
|
-------
|
|
Positions bulk pipe ready to download image
|
|
Again request is repeated untill returned data byte 0 is set to 0
|
|
|
|
bmRequestType=c0 Vendor,device to host
|
|
bRequest = 2
|
|
wValue = 0 (image index)
|
|
Index = 0
|
|
Length = 6
|
|
|
|
Result:6bytes
|
|
contains:01 00 00 00 00 00
|
|
|
|
untill data changes to:
|
|
contains:00 00 00 00 00 00
|
|
|
|
|
|
opens bulk pipe and starts reading data in 0x100(256) byte chunks
|
|
closes bulk pipe
|