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Disabled the IR DMA channel on the error path, which clears the flag and
frees the descriptor blocks before the chunks go away.
Reviewed by: adrian
Differential Revision: https://reviews.freebsd.org/D58502
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Replaced the monolithic cdevsw implementation with the video(4)
framework.
Reviewed by: adrian
Differential Revision: https://reviews.freebsd.org/D58369
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Implemented crom_crc_valid() helper to validate IEEE 1394 config ROM CRC-16
checksums.
Skipped root header CRC validation since csrhdr.crc_len cover the entire
ROM body which is not fully read at header parse time. Per-directory
CRC checks below catch corruption where it needed.
Reviewed by: adrian
Differential Revision: https://reviews.freebsd.org/D58307
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Migrated fwcam to use per-unit-directory child device
Differential Revision: https://reviews.freebsd.org/D58202
Reviewed by: adrian
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Some IIDC cameras power down the sensor when inactive (e.g. lens
cover closed) and reject ISO enable with EIO. Re-power the camera
and retry once before failing.
Reviewed by: adrian
Differential Revision: https://reviews.freebsd.org/D58101
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Moved ISO start to first usage. Opening the device now
only validates state and increments the open count, allowing info
queries and mode changes without starting the camera. ISO streaming
begins on demand when userland first reads frame data.
This avoid the camera led to turn-on at attach.
Reviewed by: adrian
Differential Revision: https://reviews.freebsd.org/D58100
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fwcamctl provides userland access to /dev/fwcam0. Supported
subcommands: info (camera state, format, mode, rate, features),
snap (capture a frame as PPM), mode (set format/mode/rate), and
feat (get/set camera feature registers).
snap converts YUV422, YUV411, YUV444, RGB8, and Mono8 pixel
formats to RGB24 PPM with no external dependencies. A configurable
frame skip (default 5) allows auto-exposure and auto-white-balance
to settle before capture.
(from adrian - yes, I've successfully captured images from an
Apple isight camera on firewire with this tool and in-tree support.)
Reviewed by: adrian
Differential Revision: https://reviews.freebsd.org/D57914
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The IIDC spec (s3.1) requires the video mode to be programmed before ISO
enable. Without this, cameras that power up with invalid default
mode/rate combinations reject the ISO_EN write.
This can happen when the firmware of teh camera is outdated or
vendor never updated it.
Differential Revision: https://reviews.freebsd.org/D58092
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iso_speed was never initialized, defaulting to S100 regardless of the
camera's actual link speed. Some cameras firmwares reject ISO_EN
when the speed field in the ISO_CHANNEL register
does not match their capabilities.
Reviewed by: adrian
Differential Revision: https://reviews.freebsd.org/D58091
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Read V_MODE_INQ and V_RATE_INQ registers for all supported formats
during probe, caching the camera's actual capabilities. Use these
to validate SMODE ioctl requests before writing to the camera.
Writing an unsupported combination caused the camera to
stop responding, requiring a physical power cycle.
Tested with: Apple iSight (external FireWire)
Reviewed by: adrian
Differential Revision: https://reviews.freebsd.org/D58090
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Add fwcam(4), a driver for IIDC v1.30 (TA Document 1999023) digital
cameras over IEEE 1394.
Supports Format_0 (VGA) video modes with isochronous receive DMA,
feature control (brightness, exposure, gain, shutter, white balance,
focus, etc.), poll/kqueue, and hot-plug via bus reset handling.
Reviewed by: adrian
Differential Revision: https://reviews.freebsd.org/D57685
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