Commit graph

1402 commits

Author SHA1 Message Date
Daniel Drake
f498fcd1ea Fix img_capture_continuous build
Also enable it in the default development build
2007-11-04 19:10:23 +00:00
Daniel Drake
f733ddcc3b uru4000: retry scanner powerup 3 times
When we include the await_finger_off procedure (i.e. set mode 12), the
current power-up code is unreliable - no 56aa interrupt arrives sometimes.
Comparing the F0 data and hwstat at this point between a working and a
non-working run yields no differences.

Work around this issue by retrying power-on 3 times.
2007-11-04 19:02:38 +00:00
Daniel Drake
cbe1111e4e uru4000: handle images without headers
While testing the new code on my MS keyboard, I found some strange
conditions where occasionally, the device will stop providing images
headers until it is replugged.

Detect and work around this when it happens.
2007-11-04 19:01:51 +00:00
Daniel Drake
2e6c3b940c API documentation 2007-11-04 00:21:54 +00:00
Daniel Drake
7e6f25908b remove imgdev abstraction from public API
Make it easier for application developers, don't have to care about this
level of abstraction which we're intending to make superfluous to them.
2007-11-02 17:06:44 +00:00
Daniel Drake
fc77786e46 uru4000: interrupt handling fixes
This should improve driver stability somewhat. Powerup problems seem to
happen when we receive 3 unrelated interrupts while waiting for the
power-on interrupt, so let's assume that the device can only buffer 3
interrupts, and when the buffer is full, it discards new ones.

When we detect a possible buffer overflow, ask the caller to retry the
operation.

Also, saw the interrupt of death a few times, so add in a warning when
this happens. Haven't seen it since handling interrupt overflows though.
2007-10-31 22:47:04 +00:00
Daniel Drake
07a81b07be upekts: initialise and deinitialise device during verify/capture
Otherwise it heats up, and verify retries fail because we didn't end the
session.
2007-10-31 22:46:50 +00:00
Daniel Drake
fc0a97a801 Build system tweaks
Install fprint.h header
Include headers in distribution
distcheck fixes
Include and install pkgconfig file
2007-10-31 15:44:36 +00:00
Daniel Drake
447b1f01b3 Print discovery
Add concept of "discovered prints" and flesh out the API. A discovered print
was found based on file name but has not been checked for file integrity,
and of course there is no guarantee that it is usable when you try to
use it later (might have been deleted, etc).

The .fprint directory structure was changed - instead of using mnemonics
like "rind" we use their numeric value in the fp_finger enum as the filename.
2007-10-31 13:13:57 +00:00
Daniel Drake
b96aade69c Flesh out driver_id/devtype API
Add accessor functions to the various structures
2007-10-30 22:25:26 +00:00
Daniel Drake
cc3e976042 Add 'discover' hook for drivers
Drivers can now offer a discover function, and are expected to offer the
device devtype during discovery, without accessing the USB device. Hmm.
Maybe we'll have to change that later...
2007-10-30 22:15:45 +00:00
Daniel Drake
f0ef386f43 More NBIS cleanups 2007-10-30 20:55:35 +00:00
Daniel Drake
6f633cc771 Use glib's byte order functions 2007-10-29 23:06:06 +00:00
Daniel Drake
294f9ad447 Improve print_data structure and on-disk format
Drivers now have an ID number. These will be assigned by me and documented
on the wiki. 0 cannot be used.

Drivers now define a devtype for each device they initialise. This is to
cope with the situation where a driver can support varying devices where
their print data is incompatible (i.e. image scaling is totally changed).
This doesn't apply to any existing supported devices.

Print data no longer includes driver name, and includes driver ID instead.

Paths to saved print data now include driver ID and devtype, and no longer
include driver name.

APIs exposed for converting a print_data into a blob which can then
be loaded back again later. Useful for systems who don't want to use
my simple storage system (which is only aimed at a single user).

File format is now defined and will be documented on the wiki. The header
is larger as we can no longer rely on directory paths in all scenarios.

Print data compat check now checks devtype and driver ID.
2007-10-28 22:13:51 +00:00
Daniel Drake
4e5cfdf92a NBIS cleanup
Part 1 of many. Remove some unused/pointless code, and made some code
static.
2007-10-28 15:57:27 +00:00
Daniel Drake
6b8d17ef26 Add bozorth3 from NBIS; implement verify for image devices
uru4000 works splendiferously (YAY!)
aes4000 is going to need some work though :(
2007-10-28 12:03:15 +00:00
Daniel Drake
41b25f28a4 Add mindtct from NBIS; implement enroll for image devices
mindtct is mostly as-is for now, with just a couple of bits ripped out.
2007-10-27 22:48:09 +01:00
Daniel Drake
be67f85caa Add Authentec AES4000 driver 2007-10-27 19:33:00 +01:00
Daniel Drake
3bbb7b8b51 Internal image allocation API changes
Creating by dimensions is likely not useful now that we can infer image
size from a device in question.
2007-10-27 18:10:33 +01:00
Daniel Drake
351ccb4ab7 Add XV-based img_capture_continuous example 2007-10-27 15:17:19 +01:00
Daniel Drake
da071ff8a2 Add API for freeing images 2007-10-27 15:16:54 +01:00
Daniel Drake
c2a83ec948 Improved image dimension handling
Drivers now specify the size of the image they provide, and theres an API
so that you can get the size of an image before you capture it.
2007-10-27 14:45:14 +01:00
Daniel Drake
9960a7ff34 Image standardization
Initially supports flipping and colour inversion
2007-10-27 14:24:57 +01:00
Daniel Drake
0ddfef6c21 Add uru4000 driver 2007-10-27 00:10:58 +01:00
Daniel Drake
f367ae8f4b Zero out fprint_data fields on allocation 2007-10-27 00:09:46 +01:00
Daniel Drake
f3a838e856 Initial implementation for image device access and capture
Also added new example: img_capture
2007-10-27 00:09:18 +01:00
Daniel Drake
0aac3706d7 upekts: release interface on error condition and normal exit 2007-10-25 15:36:13 +01:00
Daniel Drake
0ac74ef649 Pass driver_data from ID table to driver init function 2007-10-25 15:00:30 +01:00
Daniel Drake
2709c6dc8c Basic image driver foundations
The basic model is that image drivers declare a fp_img_driver structure
rather than a fp_driver struct. fp_img_driver will contain primitive imaging
operations such as 'scan finger and return image'. The imgdev layer will
generically implement the primitive fp_driver operations, and the imgdev
layer will fix up the enroll/verify/etc pointers at driver registration
time.

Removed const from all fp_driver declarations, as these are now modified
dynamically in the case of imaging drivers.
2007-10-23 23:27:21 +01:00
Daniel Drake
c97f4bb1a7 Fix verify debug messages
Teach it about the various error conditions.
2007-10-16 14:35:33 +01:00
Daniel Drake
801fcfc07c upekts: fix memory corruption
Found by valgrind
2007-10-16 14:34:47 +01:00
Daniel Drake
680142f268 storage: add save/load functionality
Prints can now be saved to disk (but you currently must classify which
finger they are) and you can load them later.

Added 2 simple example programs to demonstrate this.
2007-10-16 14:34:22 +01:00
Daniel Drake
3b8f8c195c upekts: support large messages
Add support for messages with a length greater than 255.
Also picked out a few more retry codes.
2007-10-16 13:41:23 +01:00
Daniel Drake
10bb96a0df Rename verify to verify_live
...to make way for an enroll example which stores on disk, and
a verify example that loads from disk.
2007-10-15 22:16:59 +01:00
Daniel Drake
bf9ce44f43 upekts: verify implementation
We can now verify live fingerprints using the verify example.
Error handling during verification needs to be improved.
2007-10-15 22:09:46 +01:00
Daniel Drake
f59112d57c Unhide fprint_data buffer from drivers
May as well keep things out in the open.
2007-10-15 22:07:22 +01:00
Daniel Drake
68bdfc7868 Verification infrastructure
Similar model to enrollment.
2007-10-15 22:06:56 +01:00
Daniel Drake
39271b4fe5 Enrollment: improved error reporting
Convert enrollment function to return a signed integer, which is negative
on error or corresponds into fp_enroll_result otherwise.
Now we can treat a 'FAIL' condition differently from an actual error: fail
means that enrollment didn't complete because the data was nonsense or
whatever (e.g. scanned a different finger for each stage?).

Updated upekts accordingly.
2007-10-14 00:51:20 +01:00
Daniel Drake
ab5b1ca8e9 upekts: communication handling and enrollment implementation
This completes an enrollment implementation for the upekts driver.
It's based on code from libthinkfinger, but as there seemed to be many
unknown details there, I spent some time analysing the bus messages in
more detail and have effectively rewritten almost all of the borrowed code.

Note that libthinkfinger is GPL licensed, so that reflects on this code too.
At release time I will ask them if they are OK for me to relicense it.
2007-10-13 17:13:25 +01:00
Daniel Drake
2995144310 Build system tweaks
Add configure-time controls for logging
Set some default compile-time warnings
2007-10-13 16:03:53 +01:00
Daniel Drake
50e2de0730 Enrollment tweaks
upekts will need to know when the first enrollment stage is attempted for
the first time, so add an __enroll_stage counter which actually indicates
the next stage to enroll. -1 is a special value and it means 0 is next *and*
it is the initial attemt.

Added more debug output to the enroll handler.
Added new fp_enroll_status codes for too short or uncentered scans.

Changed the print_data allocator to consider the device rather than the
driver, this feels more natural. Added missing return value.

Make fp_enroll_status codes start at 1. 0 can now be used as a
special/temporary value by the drivers. Also check that we aren't exceeding
the number of enroll stages.

Also add a missing exit() call to the verify example and update for the
above.
2007-10-13 15:51:33 +01:00
Daniel Drake
e6624fe508 Add 16 bit endianness functions 2007-10-12 15:28:46 +01:00
Daniel Drake
ec91736ac4 Add logging infrastructure
Also added some debug/error messages to existing code. For now debugging is
always on, this will be made optional later.
2007-10-12 15:14:29 +01:00
Daniel Drake
016ff33533 Enrolment infrastructure 2007-10-08 19:53:50 +01:00
Daniel Drake
b071f3cdb9 Initial fingerprint data representation ideas 2007-10-08 18:24:29 +01:00
Daniel Drake
59b73af909 Documentation update 2007-10-08 17:37:58 +01:00
Daniel Drake
f81aa47a19 Add 'verify' example skeleton
This will become an example program to enroll a fingerprint and then
verify a finger against it.
2007-10-08 17:37:33 +01:00
Daniel Drake
2c06a4ebfa Expose driver info to library users 2007-10-08 17:18:29 +01:00
Daniel Drake
711bb1151b open/close device functions 2007-10-08 17:16:56 +01:00
Daniel Drake
7d31cb4d45 Basic device discovery infrastructure 2007-10-08 17:16:54 +01:00