| dee8e1e48982a48b31c2db73a4e6630d70e2bfac |
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13-Dec-2016 |
Jerry Zhang <zhangjerry@google.com> |
Refactored Mtp driver interface into multiple classes. am: 487be61fb0 am: c17a76108b am: 1475041870
am: 28569ba92e
Change-Id: I18b7674cd0c2e05534849c52f78cbcb0e4ad9144
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| 487be61fb0a38873aec1d12da92437fba5e728f2 |
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24-Oct-2016 |
Jerry Zhang <zhangjerry@google.com> |
Refactored Mtp driver interface into multiple classes.
Added new interface for FunctionFS. This allows most of
the driver code to exist in userspace. The driver will
automatically use FunctionFS if it is enabled for that
device, otherwise it will default to the kernel driver.
The intention is to eventually deprecate the kernel driver.
Bug: 30976142
Change-Id: I36b8d16ca254fddd995b3ea1bd3d37b0ff4a28f7
Test: New automated tests for MtpFfsHandle, AsyncIO.
Manual testing on each device.
/frameworks/av/media/mtp/MtpDataPacket.h
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| d4b4296b401162a7a42f757c96e3652b82255b13 |
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04-Oct-2016 |
Daichi Hirono <hirono@google.com> |
Don't send short URB packet when sending MtpDataPacket.
When sending a MtpDataPacket to a MTP device, the kernel driver splits
it into multiple URB packets so that the URB packet size does not exceed
the buffer size at the MTP device.
Previously MtpDataPacket sends its header first, then sends the
payload. It means the first URB packet only contains the header of
MtpDataPacket and the URB packet size is smaller than the maximum URB
packet size (short packet). Some MTP devices regard the short packet as
the end of the sequencail URB packets, thus the devices do not accept
the following URB packets that contain the payload.
The MTP spec says if the responder (MTP device) sends the data in a way
where the first pacekt contains only the header, the initiator (MTP
host) must send data in the same way. Otherwise the initiator must not
send a short packet in the sequencial URB packets.
The CL fixes the MTP host implementation so that it remembers how the
MTP device sends data, and uses the same way when sending data
from the host.
Bug: 31165557
Test: Manually invokes MtpDevice#sendObject
Change-Id: Ic76eb4241ed74957414aef2990be08cd77a9f5a9
/frameworks/av/media/mtp/MtpDataPacket.h
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| 4fd9a8b9865addfedbcd84d5c9efea0f647086a0 |
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20-Aug-2015 |
Daichi Hirono <hirono@google.com> |
Use common implementation for getObject and importFile.
Previously the two functions have separate but similar implementation. ag/750097
fixed a bug in importFile, but we have a same bug in getObject. Instead fixing
the bug separately, the CL adds a common function that can be used from both
getObject and importFile.
BUG=23264575
Change-Id: I0bdc876ee9b11301ba4c445cc16556e9c951a8b4
/frameworks/av/media/mtp/MtpDataPacket.h
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| ab063847e6e893740749029a04cce1f6b7345ed5 |
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12-Nov-2014 |
Mike Lockwood <lockwood@google.com> |
MTP: add strict bounds checking for all incoming packets
Previously we did not sanity check incoming MTP packets,
which could result in crashes due to reading off the edge of a packet.
Now all MTP packet getter functions return a boolean result
(true for OK, false for reading off the edge of the packet)
and we now return errors for malformed packets.
Bug: 18113092
Change-Id: Ic7623ee96f00652bdfb4f66acb16a93db5a1c105
/frameworks/av/media/mtp/MtpDataPacket.h
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| ef441d965504dbf31c5db690e5b34fcdcecd92ff |
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15-Jul-2011 |
Mike Lockwood <lockwood@android.com> |
MTP: Use a single packet for the data phase
instead of sending 12 byte header in a separate packet.
PTP on the Mac is much happier with this approach.
Change-Id: I7d1ca498f6346afd88876d24332187b466fc469c
Signed-off-by: Mike Lockwood <lockwood@android.com>
/frameworks/av/media/mtp/MtpDataPacket.h
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| 64000788211f4c7e78c80a4a155390d1316e1176 |
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25-Apr-2011 |
Mike Lockwood <lockwood@android.com> |
MTP: Implement GetThumb command
This allows the PC to access thumbnails in JPEG files over MTP/PTP
Bug: 3219495
Change-Id: I4964f8b4826dffb7f0f77464ec91bd2e97a2f007
Signed-off-by: Mike Lockwood <lockwood@android.com>
/frameworks/av/media/mtp/MtpDataPacket.h
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| 42d0b79a787814d42e4c6f9dfe14f13cc0f6a758 |
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04-Jan-2011 |
Mike Lockwood <lockwood@android.com> |
MTP: changes to use new usb_request support in libusbhost
Change-Id: Ic091eab166a66efcde0395dcebbbc513f2322fca
Signed-off-by: Mike Lockwood <lockwood@android.com>
/frameworks/av/media/mtp/MtpDataPacket.h
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| b9ff444a7eaf7ffd43970c0477110c6808bd4a7c |
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19-Nov-2010 |
Mike Lockwood <lockwood@android.com> |
PTP: Improve performance and reliability of file importing
Now the file copy is done completely within the media process
rather than pushing data to the client via ContProvider.openFile().
File system writes are now interleaved with USB reads, which allows us
to copy the data faster and prevents the camera from timing out during transfer.
File is automatically inserted in the media provider after a successful import
and a Uri is returned to the client.
BUG: 2994234
Change-Id: Ie75c63da76f623343d3d966c6a707aa1ae871972
Signed-off-by: Mike Lockwood <lockwood@android.com>
/frameworks/av/media/mtp/MtpDataPacket.h
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| 8277cec96ffa55082962591bca1c55abbeec8c26 |
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10-Aug-2010 |
Mike Lockwood <lockwood@android.com> |
MTP: work in progress on expanded property support
GetObjectPropValue and SetObjectPropValue are disabled until I figure out
why Windows doesn't like what I have done.
Change-Id: I74e945ef3ea031f6d46f4ebaa8df815da0a5c3ed
Signed-off-by: Mike Lockwood <lockwood@android.com>
/frameworks/av/media/mtp/MtpDataPacket.h
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| de1e37aad04640ef76f3c017b65adca087c7be0f |
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18-Aug-2010 |
Mike Lockwood <lockwood@android.com> |
MTP: Compatibility fixes for transferring strings
Change-Id: Ic06d754ee68b0389439cdc34f73adff0f2b33afa
Signed-off-by: Mike Lockwood <lockwood@android.com>
/frameworks/av/media/mtp/MtpDataPacket.h
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| 782aef17c9921a3bf401a0432878df5031f2328b |
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10-Aug-2010 |
Mike Lockwood <lockwood@android.com> |
MTP: Push queries for supported formats and properties up to Java.
Change-Id: I4f117090340e3916afda3d194521a6092a672ddc
Signed-off-by: Mike Lockwood <lockwood@android.com>
/frameworks/av/media/mtp/MtpDataPacket.h
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| 0cf89f2e622aa53f31fa5762ca4bc805bb509ed3 |
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27-Jul-2010 |
Mike Lockwood <lockwood@android.com> |
MTP host: Add support for reading files from an MTP device via ParcelFileDescriptor
Also added some support for sending files to the device that hasn't been debugged yet.
Add locking to MtpDevice to prevent it from attempting multiple transactions simultaneously.
Change-Id: I2b995ba0af086cc6920bd6b8c869f540ad78560a
Signed-off-by: Mike Lockwood <lockwood@android.com>
/frameworks/av/media/mtp/MtpDataPacket.h
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| 5cdceca217319bf6a22caf1acadc38c8dc259316 |
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20-Jul-2010 |
Mike Lockwood <lockwood@android.com> |
MTP: Fix problems reading and writing arrays in property values.
Change-Id: Idd53b63fd32698a3ffc90f174d16ae597b4feb36
Signed-off-by: Mike Lockwood <lockwood@android.com>
/frameworks/av/media/mtp/MtpDataPacket.h
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| 1865a5ddcfe7b0e8dc211419aea1094b1491a5fd |
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03-Jul-2010 |
Mike Lockwood <lockwood@android.com> |
MTP: Use media provider database to implement MTP device support.
Uses a new "MTP objects" table in the media provider to support basic
enumeration of the external storage file system.
Support for accessing audio, video and image metadata in the existing
media provider tables will be added in a later commit.
The C++ MtpDatabase class is now abstract, to support a proxy subclass that
calls through JNI to the Java MtpDatabase class in the media provider.
Change-Id: I90f0db5f3acc5d35ae78c27a8507edff16d14305
Signed-off-by: Mike Lockwood <lockwood@android.com>
/frameworks/av/media/mtp/MtpDataPacket.h
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| 3e072b354d1e1e3ee62d58492f0739139df8aff1 |
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10-Jun-2010 |
Mike Lockwood <lockwood@android.com> |
MTP: Add support for retrieving thumbnails to MTP content provider.
Signed-off-by: Mike Lockwood <lockwood@android.com>
/frameworks/av/media/mtp/MtpDataPacket.h
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| a6c490b8b2d96ebaab632286029463f932ae3b6b |
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06-Jun-2010 |
Mike Lockwood <lockwood@android.com> |
MTP: host support for retrieving device property descriptors
Signed-off-by: Mike Lockwood <lockwood@android.com>
/frameworks/av/media/mtp/MtpDataPacket.h
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| 335dd2be955607f2632eabc25045857f2cc8b674 |
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19-May-2010 |
Mike Lockwood <mike@spruce.(none)> |
More work on PTP host support.
Change-Id: Ifbd5bd5efa3cdb750ae1a2aae38181457554d34d
Signed-off-by: Mike Lockwood <mike@spruce.(none)>
/frameworks/av/media/mtp/MtpDataPacket.h
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| 7850ef999740f214a1990a9c090d3f3865d435aa |
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14-May-2010 |
Mike Lockwood <lockwood@android.com> |
Move MTP code to the android namespace
Change-Id: I5da48038fd5e4cdeefaeba42cdc74eb588b3448d
Signed-off-by: Mike Lockwood <lockwood@android.com>
/frameworks/av/media/mtp/MtpDataPacket.h
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| 16864bae0f51c32c456da2c43adf7a057c0c4882 |
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11-May-2010 |
Mike Lockwood <lockwood@android.com> |
Checkpoint work on MTP and PTP investigation.
This change includes work in progress on a C++ library for both host and device
MTP and PTP support.
Currently the makefile builds two test programs:
mtptest - a command line test program that implements a small subset of device side MTP.
Requires a kernel driver that has not been checked in yet.
ptptest - a host tool to test USB host support for detecting and communicating with
digital cameras over PTP. Runs on Linux host.
Later this will be reformulated as a native library that will be used in the media process.
Change-Id: I81aab279975b600b59d99013ab97f9adf0b58da7
Signed-off-by: Mike Lockwood <lockwood@android.com>
/frameworks/av/media/mtp/MtpDataPacket.h
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