8 years agoam7xxx: mention open_device() in the comment about scan_devices()
Antonio Ospite [Sun, 25 Jan 2015 22:40:35 +0000 (23:40 +0100)]
am7xxx: mention open_device() in the comment about scan_devices()

8 years agoam7xxx: clean up the exit path in open_device()
Antonio Ospite [Sun, 25 Jan 2015 22:27:37 +0000 (23:27 +0100)]
am7xxx: clean up the exit path in open_device()

8 years agoam7xxx: comment on the loop termination in SCAN_OP_OPEN_DEVICE mode
Antonio Ospite [Sun, 25 Jan 2015 22:23:33 +0000 (23:23 +0100)]
am7xxx: comment on the loop termination in SCAN_OP_OPEN_DEVICE mode

8 years agoam7xxx: factor out an open_device() function from scan_devices()
Antonio Ospite [Sun, 25 Jan 2015 22:12:03 +0000 (23:12 +0100)]
am7xxx: factor out an open_device() function from scan_devices()

This reduces the indentation level and makes the code more readable, now
it will be easier to improve open_device().

8 years agoam7xxx: make a comment clearer about SCAN_OP_OPEN_DEVICE
Antonio Ospite [Sun, 25 Jan 2015 21:12:27 +0000 (22:12 +0100)]
am7xxx: make a comment clearer about SCAN_OP_OPEN_DEVICE

8 years agoTODO: add another item about the style used in cmake files
Antonio Ospite [Sun, 25 Jan 2015 20:34:13 +0000 (21:34 +0100)]
TODO: add another item about the style used in cmake files

8 years agodoc/lsusb_dumps: add lsusb_Philips-PicoPix-1020.log
Antonio Ospite [Sun, 25 Jan 2015 20:33:34 +0000 (21:33 +0100)]
doc/lsusb_dumps: add lsusb_Philips-PicoPix-1020.log

8 years agoexamples: fix handling optional libraries in target_link_libraries()
Antonio Ospite [Tue, 30 Dec 2014 22:47:04 +0000 (23:47 +0100)]
examples: fix handling optional libraries in target_link_libraries()

am7xxx-play can compile just fine without XCB, but cmake was being
overly strict when XCB was missing.

8 years agoam7xxx-play: improve a comment
Antonio Ospite [Sat, 22 Nov 2014 23:03:08 +0000 (00:03 +0100)]
am7xxx-play: improve a comment

8 years agoam7xxx-play: fix a possible case of use before initialization
Antonio Ospite [Sat, 22 Nov 2014 22:58:36 +0000 (23:58 +0100)]
am7xxx-play: fix a possible case of use before initialization

The got_packet variable is assigned inside an internal "if" of the while
loop, but it is also used in the checks at the end of the while loop,
and it is possible to get to this part before having ever assigned the
variable, so in order to behave correctly initialize the variable before
the loop starts.

8 years agodoc: update
Antonio Ospite [Wed, 5 Nov 2014 10:38:19 +0000 (11:38 +0100)]
doc: update

In particular this fixes the following warnings from doxygen:

Warning: Tag `XML_SCHEMA' at line 235 of file `' has become obsolete.
         This tag has been removed.
Warning: Tag `XML_DTD' at line 236 of file `' has become obsolete.
         This tag has been removed.

8 years agoexamples: the examples were always meant to be all under GPL-3+
Antonio Ospite [Mon, 7 Jul 2014 13:53:22 +0000 (15:53 +0200)]
examples: the examples were always meant to be all under GPL-3+

9 years agoRelease version 0.1.5 v0.1.5
Antonio Ospite [Thu, 15 May 2014 10:44:07 +0000 (12:44 +0200)]
Release version 0.1.5

9 years agoHACKING.asciidoc: update Windows cross-build section to use libav10
Antonio Ospite [Thu, 15 May 2014 10:33:41 +0000 (12:33 +0200)]
HACKING.asciidoc: update Windows cross-build section to use libav10

9 years agoam7xxx-play: port to libav10
Antonio Ospite [Mon, 12 May 2014 21:02:28 +0000 (23:02 +0200)]
am7xxx-play: port to libav10

9 years agoUpdate email address and copyright years
Antonio Ospite [Thu, 8 May 2014 10:59:02 +0000 (12:59 +0200)]
Update email address and copyright years

9 years agocontrib/performance/README: fix some typos
Antonio Ospite [Thu, 8 May 2014 10:37:44 +0000 (12:37 +0200)]
contrib/performance/README: fix some typos

9 years agocosmetics: remove some trailing spaces
Antonio Ospite [Thu, 8 May 2014 10:27:23 +0000 (12:27 +0200)]
cosmetics: remove some trailing spaces

9 years agoREADME.asciidoc: update instructions to test libam7xxx on Windows
Antonio Ospite [Thu, 8 May 2014 10:26:04 +0000 (12:26 +0200)]
README.asciidoc: update instructions to test libam7xxx on Windows

9 years agoHACKING.asciidoc: update the build instructions for Windows
Antonio Ospite [Thu, 8 May 2014 10:15:16 +0000 (12:15 +0200)]
HACKING.asciidoc: update the build instructions for Windows

9 years agoam7xxx: don't use partial designated initializers
Antonio Ospite [Thu, 8 May 2014 09:37:34 +0000 (11:37 +0200)]
am7xxx: don't use partial designated initializers

Compilers may warn about missing fields in initializers when more checks

  .../src/am7xxx.c:1131:31: error: missing field 'direction' initializer [-Werror,-Wmissing-field-initializers]
          struct am7xxx_header h = { 0 };
  1 error generated.

9 years agoam7xxx: add a portable_endian.h
Antonio Ospite [Thu, 8 May 2014 09:22:31 +0000 (11:22 +0200)]
am7xxx: add a portable_endian.h

Add a portable_endian.h to define platform specific implementations for
the functions found on most unix-like systems in endian.h.

9 years agoMerge branch 'zoom-tele-picopix'
Antonio Ospite [Wed, 7 May 2014 19:40:44 +0000 (21:40 +0200)]
Merge branch 'zoom-tele-picopix'

9 years agoam7xxx-play: allow setting the AM7XXX_ZOOM_TELE zoom mode
Antonio Ospite [Wed, 7 May 2014 16:05:11 +0000 (18:05 +0200)]
am7xxx-play: allow setting the AM7XXX_ZOOM_TELE zoom mode

9 years agopicoproj: allow setting the AM7XXX_ZOOM_TELE zoom mode
Antonio Ospite [Wed, 7 May 2014 16:04:16 +0000 (18:04 +0200)]
picoproj: allow setting the AM7XXX_ZOOM_TELE zoom mode

9 years agoam7xxx: implement the set_zoom_mode() operation for the PicoPix 2055
Antonio Ospite [Wed, 7 May 2014 16:01:58 +0000 (18:01 +0200)]
am7xxx: implement the set_zoom_mode() operation for the PicoPix 2055

Apparently AM7XXX_ZOOM_ORIGINAL and AM7XXX_ZOOM_TELE are the only
supported zoom modes on the PicoPix 2055.

9 years agoam7xxx: add support for a new AM7XXX_ZOOM_TELE zoom mode
Antonio Ospite [Wed, 7 May 2014 15:59:30 +0000 (17:59 +0200)]
am7xxx: add support for a new AM7XXX_ZOOM_TELE zoom mode

Some PicoPix projectors support a different zoom mode than the Acer
C110, in this mode the image uses a different lens distortion but the
frame aspect ratio does not change.

9 years agoam7xxx: add a msleep() implementation in tools.[ch]
Antonio Ospite [Wed, 7 May 2014 15:46:50 +0000 (17:46 +0200)]
am7xxx: add a msleep() implementation in tools.[ch]

9 years agoMerge branch 'powermode-PicoPix2055'
Antonio Ospite [Wed, 4 Dec 2013 10:32:26 +0000 (11:32 +0100)]
Merge branch 'powermode-PicoPix2055'

9 years agoam7xxx: add support for setting the power mode on the PicoPix 2055
Antonio Ospite [Thu, 28 Nov 2013 14:23:04 +0000 (15:23 +0100)]
am7xxx: add support for setting the power mode on the PicoPix 2055

9 years agoam7xxx: dump fields of unknown packet types
Antonio Ospite [Thu, 28 Nov 2013 14:13:12 +0000 (15:13 +0100)]
am7xxx: dump fields of unknown packet types

Allow dumping the payload fields as generic header_data, this is useful
when the packet type cannot be handled explicitly because the meaning of
the data is not known.

9 years agoam7xxx: factor out a send_command() function
Antonio Ospite [Thu, 28 Nov 2013 13:57:09 +0000 (14:57 +0100)]
am7xxx: factor out a send_command() function

Some packet types do not carry any header_data and thus they can be seen
as commands issued to the device.

Add a send_command() function to handle such packet types, others of
them are going to be added in future commits.

9 years agoam7xxx: switch from device quirks to device ops
Antonio Ospite [Thu, 28 Nov 2013 12:49:52 +0000 (13:49 +0100)]
am7xxx: switch from device quirks to device ops

Define device specific operations in order to allow supporting different
implementation of a given operation by different device models.

For instance this will be used to add an alternative implementation of
the 'set_power_mode' operation for the Philips/SagemCom PicoPix 2055

For now device specific callbacks are used only for the 'set_power_mode'
and 'set_zoom_mode' operations.

9 years agodoc/lsusb_dumps: add lsusb_Philips-PicoPix-2055.log
Antonio Ospite [Mon, 18 Nov 2013 13:41:42 +0000 (14:41 +0100)]
doc/lsusb_dumps: add lsusb_Philips-PicoPix-2055.log

9 years agodoc/lsusb_dumps: strip trailing spaces
Antonio Ospite [Mon, 18 Nov 2013 13:38:26 +0000 (14:38 +0100)]
doc/lsusb_dumps: strip trailing spaces

This makes it easier to compare different files with diff.

9 years agodoc/man: misc fixes to man pages
Antonio Ospite [Mon, 18 Nov 2013 13:35:37 +0000 (14:35 +0100)]
doc/man: misc fixes to man pages

The help text in particular was copied from the output of the '-h'
option which was referring to "this help message", this was OK on the
command line but it sounds a little off in a man page.

9 years agoCMakeLists.txt: define DEBUG=1 only when CMAKE_BUILD_TYPE=Debug
Antonio Ospite [Wed, 30 Oct 2013 09:41:06 +0000 (10:41 +0100)]
CMakeLists.txt: define DEBUG=1 only when CMAKE_BUILD_TYPE=Debug

When building with CMAKE_BUILD_TYPE=RelWithDebInfo the development debug
code should not be enabled, so don't define DEBUG=1 in DEBUG_FLAGS as
this will end up being both in CMAKE_C_FLAGS_DEBUG and

Instead define DEBUG=1 only for CMAKE_C_FLAGS_DEBUG so it gets used only

9 years agoHACKING.asciidoc: fix the url of the avcodec_encode_video2 patch
Antonio Ospite [Sun, 13 Oct 2013 13:50:11 +0000 (15:50 +0200)]
HACKING.asciidoc: fix the url of the avcodec_encode_video2 patch

9 years agoam7xxx-play: cosmetics, fix coding style
Antonio Ospite [Sat, 7 Sep 2013 15:30:28 +0000 (17:30 +0200)]
am7xxx-play: cosmetics, fix coding style

9 years agoam7xxx: add quirks for Philips/Sagemcom PicoPix 2055
Antonio Ospite [Sat, 3 Aug 2013 13:14:34 +0000 (15:14 +0200)]
am7xxx: add quirks for Philips/Sagemcom PicoPix 2055

The Philips/Sagemcom PicoPix 2055 does not support some operations:
  - setting the power mode confuses the firmware
  - setting the zoom mode has no effect whatsoever

Disable these operations.

Thanks-to: Luca Bompani

9 years agoNEWS: fix a typo s/mode/more/
Antonio Ospite [Sun, 28 Jul 2013 21:22:15 +0000 (23:22 +0200)]
NEWS: fix a typo s/mode/more/

9 years agoRelease version 0.1.4 v0.1.4
Antonio Ospite [Sun, 28 Jul 2013 09:15:18 +0000 (11:15 +0200)]
Release version 0.1.4

9 years agocontrib: add some benchmarking data about am7xxx_send_image_async
Antonio Ospite [Sat, 27 Jul 2013 23:11:42 +0000 (01:11 +0200)]
contrib: add some benchmarking data about am7xxx_send_image_async

9 years agoam7xxx-play: fix a crash when a packet cannot be encoded
Antonio Ospite [Sat, 27 Jul 2013 22:50:30 +0000 (00:50 +0200)]
am7xxx-play: fix a crash when a packet cannot be encoded

9 years agoam7xxx-play: don't initialize variables when not needed
Antonio Ospite [Sat, 27 Jul 2013 22:38:13 +0000 (00:38 +0200)]
am7xxx-play: don't initialize variables when not needed

9 years agoTODO: mention that atoi() must go away
Antonio Ospite [Sat, 27 Jul 2013 22:19:04 +0000 (00:19 +0200)]
TODO: mention that atoi() must go away

9 years agopicoproj: get rid of exit(), return more meaningful values to userspace
Antonio Ospite [Sat, 27 Jul 2013 22:10:08 +0000 (00:10 +0200)]
picoproj: get rid of exit(), return more meaningful values to userspace

Maybe the values returned by picoproj will never be used, but it is
better to use a clean style in example code.

9 years agoHACKING.asciidoc: add commands to compile with clang
Antonio Ospite [Sat, 27 Jul 2013 21:47:26 +0000 (23:47 +0200)]
HACKING.asciidoc: add commands to compile with clang

9 years agoHACKING.asciidoc: add an example of testing am7xxx-play with valgrind
Antonio Ospite [Sat, 27 Jul 2013 21:44:45 +0000 (23:44 +0200)]
HACKING.asciidoc: add an example of testing am7xxx-play with valgrind

This will make testing easier as the line can be copied and pasted.

9 years agodoc: update
Antonio Ospite [Sat, 27 Jul 2013 21:36:08 +0000 (23:36 +0200)]
doc: update

9 years agocontrib: add a udev rule to invoke am7xxx-modeswitch
Antonio Ospite [Sat, 27 Jul 2013 21:27:01 +0000 (23:27 +0200)]
contrib: add a udev rule to invoke am7xxx-modeswitch

This will be useful on embedded systems like RaspberryPi or BeagleBone
where users may not want the whole usb-modeswitch package to be
installed just for libam7xxx.

9 years agoRename am7xxx_mode_switch to am7xxx-modeswitch
Antonio Ospite [Sat, 27 Jul 2013 21:25:34 +0000 (23:25 +0200)]
Rename am7xxx_mode_switch to am7xxx-modeswitch

The new name matches more closely the name of the binary used in recent
usb-modeswitch versions.

9 years agoTODO: mention that data types could be improved in the API
Antonio Ospite [Sat, 27 Jul 2013 21:02:34 +0000 (23:02 +0200)]
TODO: mention that data types could be improved in the API

9 years agopicoporj: fix another -Wshorten-64-to-32 warning from clang
Antonio Ospite [Sat, 27 Jul 2013 21:01:16 +0000 (23:01 +0200)]
picoporj: fix another -Wshorten-64-to-32 warning from clang

  ../examples/picoproj.c:196:8: error: implicit conversion loses integer precision: 'size_t'
        (aka 'unsigned long') to 'int' [-Werror,-Wshorten-64-to-32]
          ret = fread(image, size, 1, image_fp);
              ~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

9 years agopicoproj: silence a -Wshorten-64-to-32 warning from clang
Antonio Ospite [Sat, 27 Jul 2013 20:55:53 +0000 (22:55 +0200)]
picoproj: silence a -Wshorten-64-to-32 warning from clang

  ../examples/picoproj.c:187:12: error: implicit conversion loses integer precision: '__off_t' (aka 'long')
        to 'unsigned int' [-Werror,-Wshorten-64-to-32]
          size = st.st_size;
               ~ ~~~^~~~~~~

9 years agoCMakeLists.txt: disable -Wsign-conversion warnings
Antonio Ospite [Sat, 27 Jul 2013 20:53:19 +0000 (22:53 +0200)]
CMakeLists.txt: disable -Wsign-conversion warnings

9 years agoam7xxx: fix a clang warning
Antonio Ospite [Sat, 27 Jul 2013 19:33:28 +0000 (21:33 +0200)]
am7xxx: fix a clang warning

  ../src/am7xxx.c:685:16: error: implicit conversion loses integer precision: 'ssize_t' (aka 'long') to 'int'
          num_devices = libusb_get_device_list(ctx->usb_context, &list);
                    ~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

libusb_get_device_list() returns ssize_t, just use it for the num_devices

9 years agoexamples: silence a couple of clang warnings
Antonio Ospite [Sat, 27 Jul 2013 18:55:48 +0000 (20:55 +0200)]
examples: silence a couple of clang warnings

Silence a couple of warnings given when compiling with clang:

  ../examples/am7xxx-play.c:764:28: warning: will never be executed [-Wunreachable-code]
                                          AM7XXX_ZOOM_ORIGINAL, AM7XXX_ZOOM_TEST);
  ../examples/am7xxx-play.c:748:24: warning: will never be executed [-Wunreachable-code]
                                          AM7XXX_POWER_OFF, AM7XXX_POWER_TURBO);
  2 warnings generated.

  ../examples/picoproj.c:142:28: warning: will never be executed [-Wunreachable-code]
                                          AM7XXX_ZOOM_ORIGINAL, AM7XXX_ZOOM_TEST);
  ../examples/picoproj.c:127:24: warning: will never be executed [-Wunreachable-code]
                                          AM7XXX_POWER_OFF, AM7XXX_POWER_TURBO);
  2 warnings generated.

The warnings refer to the default case of a switch statement over an
enum variable, clang fails to understand that the default case can still
be reached because any integer value can be assigned to the enum
variables via the atoi() function. Work around the warning.

The behavior is also documented here:

In general assigning arbitrary values to enum variables will just be
weird; using enums in read mode is always safe tho.

9 years agodoc: mention the Top-Height/TEC PP700 in the Doxygen documentation
Antonio Ospite [Sat, 27 Jul 2013 18:26:06 +0000 (20:26 +0200)]
doc: mention the Top-Height/TEC PP700 in the Doxygen documentation

9 years agodoc: add some lsusb dumps for reference
Antonio Ospite [Sat, 27 Jul 2013 18:23:30 +0000 (20:23 +0200)]
doc: add some lsusb dumps for reference

9 years agoam7xxx-play: use am7xxx_send_image_async()
Antonio Ospite [Sat, 20 Jul 2013 22:13:33 +0000 (00:13 +0200)]
am7xxx-play: use am7xxx_send_image_async()

Woot, this change alone doubles the frame rate :)

9 years agoam7xxx: implement am7xxx_send_image_async()
Antonio Ospite [Sat, 20 Jul 2013 22:10:28 +0000 (00:10 +0200)]
am7xxx: implement am7xxx_send_image_async()

Implement am7xxx_send_image_async() the non-blocking version of

This way user programs can more easily overlap encoding and
communication and achieve higher framerates.

9 years agoam7xxx: fix a typo in a comment s/a am7xxx device/an am7xxx device/
Antonio Ospite [Sun, 14 Jul 2013 11:25:25 +0000 (13:25 +0200)]
am7xxx: fix a typo in a comment s/a am7xxx device/an am7xxx device/

9 years agoCMakeLists.txt: enable two new compiler warnings
Antonio Ospite [Sat, 13 Jul 2013 09:05:00 +0000 (11:05 +0200)]
CMakeLists.txt: enable two new compiler warnings

Enable -Wsign-conversion as a strict compilation check for both gcc and

For clang also enable -Wshorten-64-to-32 as a strict compilation check.

9 years agoam7xxx: add quirks for devices not supporting some operations
Antonio Ospite [Sat, 29 Jun 2013 22:22:07 +0000 (00:22 +0200)]
am7xxx: add quirks for devices not supporting some operations

For instance Philips/SagemoCm PicoPix PPX 2330 does not support power
modes and zoom modes, and the device even gets confused when trying to
use them; so for reliable operation it is better to just skip these
operations on such devices.

Thanks-to: GrĂ©gory Lemesre

9 years agopicoproj: remove an unreachable break statement
Antonio Ospite [Sat, 29 Jun 2013 22:20:51 +0000 (00:20 +0200)]
picoproj: remove an unreachable break statement

9 years agoam7xxx-play: uniform coding style
Antonio Ospite [Sat, 29 Jun 2013 22:15:30 +0000 (00:15 +0200)]
am7xxx-play: uniform coding style

Uniform the coding style of error paths to the one use throughout in the

9 years agoCMakeLists.txt: add support for clang and isolate gcc-only options
Antonio Ospite [Sat, 29 Jun 2013 22:12:59 +0000 (00:12 +0200)]
CMakeLists.txt: add support for clang and isolate gcc-only options

9 years agoHACKING.asciidoc: mention the patch needed for older libav/ffmpeg
Antonio Ospite [Sat, 29 Jun 2013 21:11:57 +0000 (23:11 +0200)]
HACKING.asciidoc: mention the patch needed for older libav/ffmpeg

libav/ffmpeg 0.8.X series do not have avcodec_encode_video2() which the
code uses, so for these older versions a patch is needed to undo the
changes which added support for that call.

9 years agoREADME.asciidoc: mention the TEC PP700 projector as supported
Antonio Ospite [Sat, 29 Jun 2013 21:02:13 +0000 (23:02 +0200)]
README.asciidoc: mention the TEC PP700 projector as supported

Mention the Top-Height/TEC PP700 amongst the supported devices, it has
been verified to be work with libam7xxx (thanks to the user nicknamed

The projector looks exactly like an Acer C112 from the software point of

10 years agopicoproj: remove an unneeded blank line
Antonio Ospite [Sun, 26 May 2013 22:06:23 +0000 (00:06 +0200)]
picoproj: remove an unneeded blank line

10 years agoexamples: print the usage message when a required option is missing
Antonio Ospite [Sun, 26 May 2013 22:05:00 +0000 (00:05 +0200)]
examples: print the usage message when a required option is missing

While at it specify which option is missing when picoproj fails..

10 years agoCMakeLists.txt: fix enabling verbose debug output
Antonio Ospite [Sun, 26 May 2013 21:53:13 +0000 (23:53 +0200)]
CMakeLists.txt: fix enabling verbose debug output

In 024af793fa6d6af644c225804d140cc13aa56307 the definition -DDEBUG=1 got
lost, add it back.

10 years agoam7xxx: use the symbolic constant for libusb log level
Antonio Ospite [Fri, 5 Apr 2013 21:35:34 +0000 (23:35 +0200)]
am7xxx: use the symbolic constant for libusb log level

10 years agopicoproj: show the image resolution when image does not fit the native one
Antonio Ospite [Fri, 5 Apr 2013 21:29:58 +0000 (23:29 +0200)]
picoproj: show the image resolution when image does not fit the native one

This may help spotting a missing or wrong dimension parameter on the
command line.

10 years agopicoproj: remove one of two consecutive blank lines
Antonio Ospite [Fri, 5 Apr 2013 21:28:24 +0000 (23:28 +0200)]
picoproj: remove one of two consecutive blank lines

10 years agodoc, contrib: add PicoPix 2330 to the list of supported devices
Antonio Ospite [Mon, 25 Mar 2013 22:04:03 +0000 (23:04 +0100)]
doc, contrib: add PicoPix 2330 to the list of supported devices

Thanks: Varlei Everton Menconi <>

10 years agoam7xxx: add support for Philips/Sagemcom PicoPix 2330
Antonio Ospite [Mon, 25 Mar 2013 21:47:21 +0000 (22:47 +0100)]
am7xxx: add support for Philips/Sagemcom PicoPix 2330

10 years agoMerge branch 'per-device-usb-config'
Antonio Ospite [Mon, 25 Mar 2013 21:44:35 +0000 (22:44 +0100)]
Merge branch 'per-device-usb-config'

10 years agoam7xxx: make the supported_device array const
Antonio Ospite [Sat, 23 Mar 2013 22:30:54 +0000 (23:30 +0100)]
am7xxx: make the supported_device array const

10 years agoam7xxx: improve setting USB configuration and interface_number
Antonio Ospite [Sat, 23 Mar 2013 21:55:04 +0000 (22:55 +0100)]
am7xxx: improve setting USB configuration and interface_number

There are devices out there with different bConfigurationValue or
bInterfaceNumber, having the ability to specify these setting on
a per-device basis makes it easier to add support for them.

10 years agoam7xxx: reference am7xxx_usb_device_descriptor in struct _am7xxx_device
Antonio Ospite [Wed, 14 Nov 2012 14:41:48 +0000 (15:41 +0100)]
am7xxx: reference am7xxx_usb_device_descriptor in struct _am7xxx_device

This makes it possible to retrieve info from the am7xxx device
descriptor starting from an am7xxx_device.

10 years agoam7xxx: fail if USB configuration or interface are not right
Antonio Ospite [Sat, 23 Mar 2013 21:40:25 +0000 (22:40 +0100)]
am7xxx: fail if USB configuration or interface are not right

Check the return values of libusb_set_configuration() and
libusb_claim_interface(), this way it is easier to spot devices which
require a different setting.

10 years agoam7xxx_mode_switch: release interface only if claimed
Antonio Ospite [Sat, 23 Mar 2013 22:03:48 +0000 (23:03 +0100)]
am7xxx_mode_switch: release interface only if claimed

10 years agodoc: add a man page for am7xxx_mode_switch
Antonio Ospite [Thu, 14 Mar 2013 22:04:20 +0000 (23:04 +0100)]
doc: add a man page for am7xxx_mode_switch

10 years agoAdd a NEWS file
Antonio Ospite [Thu, 14 Mar 2013 23:13:21 +0000 (00:13 +0100)]
Add a NEWS file

10 years agoRelease version 0.1.3 v0.1.3
Antonio Ospite [Thu, 14 Mar 2013 19:23:49 +0000 (20:23 +0100)]
Release version 0.1.3

10 years agoam7xxx-play: switch to avcodec_encode_video2()
Antonio Ospite [Thu, 14 Mar 2013 18:48:14 +0000 (19:48 +0100)]
am7xxx-play: switch to avcodec_encode_video2()

The code can now compile with -Werror=deprecated-declarations

10 years agoam7xxx-play: remove an unreachable break
Antonio Ospite [Thu, 14 Mar 2013 18:30:07 +0000 (19:30 +0100)]
am7xxx-play: remove an unreachable break

10 years agoam7xxx-play: rename 'packet' to 'in_packet'
Antonio Ospite [Thu, 14 Mar 2013 11:28:32 +0000 (12:28 +0100)]
am7xxx-play: rename 'packet' to 'in_packet'

This is in preparation to use an 'out_packet' for the conversion to

10 years agoam7xxx: fix coding style
Antonio Ospite [Thu, 14 Mar 2013 10:22:05 +0000 (11:22 +0100)]
am7xxx: fix coding style

Keep logical operators on the current line when continuing to another line.

10 years agocontrib: add the script
Antonio Ospite [Thu, 14 Mar 2013 10:13:16 +0000 (11:13 +0100)]
contrib: add the script

10 years agoMerge branch 'fix-devinfo-for-PicoPix'
Antonio Ospite [Mon, 17 Dec 2012 22:54:51 +0000 (23:54 +0100)]
Merge branch 'fix-devinfo-for-PicoPix'

10 years agoam7xxx: make libam7xxx work with Philips/Sagemcom PPX projectors
Antonio Ospite [Fri, 7 Dec 2012 10:59:32 +0000 (11:59 +0100)]
am7xxx: make libam7xxx work with Philips/Sagemcom PPX projectors

Philips/Sagemcom PicoPix projectors require that the DEVINFO packet is
the first one to be sent to the device in order for it to successfully
return the correct device information.

Call am7xxx_get_device_info() from am7xxx_open_device() to fulfill the
requirement from above. The device info will be cached by
am7xxx_get_device_info() and further calls to the latter will return the
correct data too.

10 years agoam7xxx: cache device info in am7xxx_get_device_info()
Antonio Ospite [Fri, 7 Dec 2012 10:51:16 +0000 (11:51 +0100)]
am7xxx: cache device info in am7xxx_get_device_info()

Request the actual device info from the device only when there is not
a cached version of it already.

This serves two purposes:

  1. Cover the case when some firmwares provide useful device info
     only under some conditions and spit out bogus data instead when
     these conditions are not met.

  2. Speed up am7xxx_get_device_info() as the USB communication is
     performed only once. AFAWN the device info does not change
     throughout the life of an am7xxx_device.

10 years agoam7xxx: detect unexpected responses to AM7XXX_PACKET_TYPE_DEVINFO requests
Antonio Ospite [Fri, 7 Dec 2012 11:22:45 +0000 (12:22 +0100)]
am7xxx: detect unexpected responses to AM7XXX_PACKET_TYPE_DEVINFO requests

Under some conditions, some devices like Philips/Sagemcom PPX projectors
return a strangely small packet (e.g. an AM7XXX_PACKET_TYPE_POWER with
header_data_len == 2) in reply to an AM7XXX_PACKET_TYPE_DEVINFO, hence
NOT providing useful device info.

10 years agoFix an error when compiling with both -O0 and -Wp,-D_FORTIFY_SOURCE=2
Antonio Ospite [Tue, 4 Dec 2012 10:46:12 +0000 (11:46 +0100)]
Fix an error when compiling with both -O0 and -Wp,-D_FORTIFY_SOURCE=2

Fix the following error happening with the gcc shipped on some Ubuntu

In file included from /usr/include/stdio.h:27:0,
                 from /home/pedro/lib/libam7xxx/src/am7xxx.c:19:
/usr/include/features.h:330:4: error: #warning _FORTIFY_SOURCE
requires compiling with optimization (-O) [-Werror=cpp]
cc1: all warnings being treated as errors
make[2]: *** [src/CMakeFiles/am7xxx.dir/am7xxx.c.o] Error 1
make[1]: *** [src/CMakeFiles/am7xxx.dir/all] Error 2
make: *** [all] Error 2

Reported-by: Petr Certik <>
10 years agoam7xxx: don't mention AM7XXX_DIRECTION_OUT in read_header()
Antonio Ospite [Wed, 14 Nov 2012 11:31:01 +0000 (12:31 +0100)]
am7xxx: don't mention AM7XXX_DIRECTION_OUT in read_header()

The validity check in read_header() looks for:

h->direction == AM7XXX_DIRECTION_IN

When this is false (direction is _not_equal_ to AM7XXX_DIRECTION_IN) it
cannot be said for sure that the direction field value is going to
really be AM7XXX_DIRECTION_OUT, technically the device may have put
anything there.

So, just report what happens don't try to overguess.

10 years agoam7xxx: add a note on the symmetry of read_header() and send_header()
Antonio Ospite [Wed, 14 Nov 2012 11:08:07 +0000 (12:08 +0100)]
am7xxx: add a note on the symmetry of read_header() and send_header()

In read_header we do:
  1. read data
  2. unserialize header
  3. validity check
  4. dump header

In send_header:
  1. dump header
  2. validity check (we skip it, actually)
  3. serialize header
  4. send data

10 years agoam7xxx: assign device_list next to its first use
Antonio Ospite [Wed, 14 Nov 2012 11:01:34 +0000 (12:01 +0100)]
am7xxx: assign device_list next to its first use

This makes the code a little more readable.