171027cfa4
git-svn-id: https://svn.code.sf.net/p/gphoto/code/trunk/libgphoto2@3267 67ed7778-7388-44ab-90cf-0a291f65f57c
167 lines
4.7 KiB
Plaintext
167 lines
4.7 KiB
Plaintext
This driver is for the Canon PowerShot series. It works with the
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following models:
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- PowerShot A50
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- PowerShot S10
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- PowerShot S20
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- PowerShot S30 (under development)
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- PowerShot S40 (under development)
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- PowerShot S100/ Digital IXUS
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- PowerShot IXY Digital
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- PowerShot S300 / Digital IXUS 300
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- PowerShot IXY Digital 300 (not tested)
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- PowerShot G1
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- PowerShot G2
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- PowerShot A10 (not tested)
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- PowerShot A20 (not tested)
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- PowerShot Pro90 IS (not tested)
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- EOS D30 (not tested)
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The support of the following cameras is mostly there as they were supported
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in gphoto 0.4.x but an API change broke the support as they handle files a
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little differently. If you are interested in fixing it mail
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gphoto-devel@gphoto.net or philm@users.sourceforge.net :
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- PowerShot A5
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- PowerShot A5 Zoom
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It doesn't work with the PowerShot 350. However, the PS350 uses a
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vaguely similar protocol, so some parts of the sources can probably be
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shared.
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The driver caches a lot of information. If the camera status changes
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during a session or if the driver gets stuck for some other reason,
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the caches can be manually flushed using "Configure camera".
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We are currently working on support for the raw file format the Canon
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cameras use (CRW -Canon RaW files). See
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http://www.shore.net/~dcoffin/powershot/
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or
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http://www2.primushost.com/~dcoffin/powershot/
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for details on the file format.
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Change history
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==============
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Version 9 (17-APRIL-2001)
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---------
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- support added for
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PowerShot S300 / Digital IXUS 300 /PowerShot IXY Digital 300
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PowerShot A10 / PowerShot A20
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EOS D30
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Version 8 (1-APRIL-2001)
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---------
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- This history have not been updated in a while...
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- support for G1, S100, Ixus and Ixy was added
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- upload support only on serial
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Version 7 (25-JULY-2000)
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---------
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- Ported to gphoto2
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Version 6 (19-MAY-2000)
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---------
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- Included USB support in the driver
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- More options in the configuration file
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- Debug output can be mostly disabled
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- The driver now sets the "downloaded" bit on downloaded images
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Version 5 (09-MAY-2000)
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---------
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- Support for full-speed transfers (115200)
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- Most protocol commands are implemented, or at least discovered (see
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the 'Protocol' file)
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- USB protocol description
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- Get/Set owner name
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- Get date
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- Get firmware rev.
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- Get battery status
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- Use libgpio for serial transfers
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- More reliable error recovery
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- Better configuration dialog
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- Support for all current powershot models (A5 to S20)
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- Low battery condition detection
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Version 4 (3-SEP-1999)
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---------
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- changed uint16_t to unsigned short and removed inclusion of stdint.h, for
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compatibility :-(
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Version 3 (1-SEP-1999)
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---------
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- lowered number of tries when initializing from 50 to 10 (50 was for
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experiments)
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- increased camera ID buffer to be large enough for PS350 responses
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- serial input is now flushed before testing or attempting synchronization
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- directories are now sorted alphabetically, implicitly ordering images by
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date
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- fixed a few memory leaks in directory handling
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- added arbitrary file download to Configure/Configure Camera (experimental;
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very fragile)
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Version 2 (29-AUG-1999)
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---------
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- integrated into gphoto-2.3.5 (from CVS)
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- added support for large directories (listing occupies > 1 message)
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- receive timeout is now raised from 1 to 10 seconds after first response
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- renamed a50_select_disk to a50_disk_info. It now returns disk capacity
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and available space.
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- completed CRC table
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- properly integrated into gPhoto
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- lots of cleanups
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Version 1 (27-AUG-1999)
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---------
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- a little bit of code cleanup, added a50.h, doc/, full recursive download
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in canon.c, and fixed a few documentation bugs, adjusted send/receive
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buffers
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- a50_send_msg incremented seq_tx when skipping retransissions while waiting
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for ACK
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Version 0 (27-AUG-1999)
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---------
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- initial release which demonstrates most functions in a way that's
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completely useless for gPhoto
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To do
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=====
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Not very up to date contact gphoto-devel@gphoto.net if you wish to
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contribute.
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- code structure is still pretty ugly. Things that absolutely need fixing:
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- command codes and fffbs are spread all over the place
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- "ping" (empty message) should probably be merged into normal message
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handling; perhaps also 03 message -> wait_for_ack can be merged too
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- psa50.c must not invoke GUI functions
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- change many fprintf(stderr,... to GUI calls or callbacks
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- improve error handling: distinguish between severe and harmless errors
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(e.g. duplicate EOT vs. ten timeouts in a row)
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- find out how error recovery works (need traces)
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- get traces for other operations:
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- idle period/restart (keepalive ?)
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- upload file, create directory
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- find out how to avoid blocking gPhoto during transfer
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