This patch redoes the filesystem code from the FAT driver up to the
clipboard code in onplay.c.
Not every aspect of this is finished therefore it is still "WIP". I
don't wish to do too much at once (haha!). What is left to do is get
dircache back in the sim and find an implementation for the dircache
indicies in the tagcache and playlist code or do something else that
has the same benefit. Leaving these out for now does not make anything
unusable. All the basics are done.
Phone app code should probably get vetted (and app path handling
just plain rewritten as environment expansions); the SDL app and
Android run well.
Main things addressed:
1) Thread safety: There is none right now in the trunk code. Most of
what currently works is luck when multiple threads are involved or
multiple descriptors to the same file are open.
2) POSIX compliance: Many of the functions behave nothing like their
counterparts on a host system. This leads to inconsistent code or very
different behavior from native to hosted. One huge offender was
rename(). Going point by point would fill a book.
3) Actual running RAM usage: Many targets will use less RAM and less
stack space (some more RAM because I upped the number of cache buffers
for large memory). There's very little memory lying fallow in rarely-used
areas (see 'Key core changes' below). Also, all targets may open the same
number of directory streams whereas before those with less than 8MB RAM
were limited to 8, not 12 implying those targets will save slightly
less.
4) Performance: The test_disk plugin shows markedly improved performance,
particularly in the area of (uncached) directory scanning, due partly to
more optimal directory reading and to a better sector cache algorithm.
Uncached times tend to be better while there is a bit of a slowdown in
dircache due to it being a bit heavier of an implementation. It's not
noticeable by a human as far as I can say.
Key core changes:
1) Files and directories share core code and data structures.
2) The filesystem code knows which descriptors refer to same file.
This ensures that changes from one stream are appropriately reflected
in every open descriptor for that file (fileobj_mgr.c).
3) File and directory cache buffers are borrowed from the main sector
cache. This means that when they are not in use by a file, they are not
wasted, but used for the cache. Most of the time, only a few of them
are needed. It also means that adding more file and directory handles
is less expensive. All one must do in ensure a large enough cache to
borrow from.
4) Relative path components are supported and the namespace is unified.
It does not support full relative paths to an implied current directory;
what is does support is use of "." and "..". Adding the former would
not be very difficult. The namespace is unified in the sense that
volumes may be specified several times along with relative parts, e.g.:
"/<0>/foo/../../<1>/bar" :<=> "/<1>/bar".
5) Stack usage is down due to sharing of data, static allocation and
less duplication of strings on the stack. This requires more
serialization than I would like but since the number of threads is
limited to a low number, the tradoff in favor of the stack seems
reasonable.
6) Separates and heirarchicalizes (sic) the SIM and APP filesystem
code. SIM path and volume handling is just like the target. Some
aspects of the APP file code get more straightforward (e.g. no path
hashing is needed).
Dircache:
Deserves its own section. Dircache is new but pays homage to the old.
The old one was not compatible and so it, since it got redone, does
all the stuff it always should have done such as:
1) It may be update and used at any time during the build process.
No longer has one to wait for it to finish building to do basic file
management (create, remove, rename, etc.).
2) It does not need to be either fully scanned or completely disabled;
it can be incomplete (i.e. overfilled, missing paths), still be
of benefit and be correct.
3) Handles mounting and dismounting of individual volumes which means
a full rebuild is not needed just because you pop a new SD card in the
slot. Now, because it reuses its freed entry data, may rebuild only
that volume.
4) Much more fundamental to the file code. When it is built, it is
the keeper of the master file list whether enabled or not ("disabled"
is just a state of the cache). Its must always to ready to be started
and bind all streams opened prior to being enabled.
5) Maintains any short filenames in OEM format which means that it does
not need to be rebuilt when changing the default codepage.
Miscellaneous Compatibility:
1) Update any other code that would otherwise not work such as the
hotswap mounting code in various card drivers.
2) File management: Clipboard needed updating because of the behavioral
changes. Still needs a little more work on some finer points.
3) Remove now-obsolete functionality such as the mutex's "no preempt"
flag (which was only for the prior FAT driver).
4) struct dirinfo uses time_t rather than raw FAT directory entry
time fields. I plan to follow up on genericizing everything there
(i.e. no FAT attributes).
5) unicode.c needed some redoing so that the file code does not try
try to load codepages during a scan, which is actually a problem with
the current code. The default codepage, if any is required, is now
kept in RAM separarately (bufalloced) from codepages specified to
iso_decode() (which must not be bufalloced because the conversion
may be done by playback threads).
Brings with it some additional reusable core code:
1) Revised file functions: Reusable code that does things such as
safe path concatenation and parsing without buffer limitations or
data duplication. Variants that copy or alter the input path may be
based off these.
To do:
1) Put dircache functionality back in the sim. Treating it internally
as a different kind of file system seems the best approach at this
time.
2) Restore use of dircache indexes in the playlist and database or
something effectively the same. Since the cache doesn't have to be
complete in order to be used, not getting a hit on the cache doesn't
unambiguously say if the path exists or not.
Change-Id: Ia30f3082a136253e3a0eae0784e3091d138915c8
Reviewed-on: http://gerrit.rockbox.org/566
Reviewed-by: Michael Sevakis <jethead71@rockbox.org>
Tested: Michael Sevakis <jethead71@rockbox.org>
There is no simple method to detect radio through the 3-wire interface, so it's
not implemented for the YH-925 for now. YH-920 always has a radio.
Change-Id: Iea484d752915fcd40dbbbd7dbbf13e81aaf548db
add_event_ex is added that takes an extra user_data pointer. This pointer is
passed to the callback (add_event and add_event_ex have slightly different
callbacks types). All callbacks also get the event id passed. Events added
with add_event_ex must be removed with remove_event_ex because the user_data
pointer must match in addition to the callback pointer.
On the other add_event is simplified to omit the oneshort parameter which
was almost always false (still there with add_event_ex).
As a side effect the ata_idle_notify callbacks are changed as well, they
do not take a data parameter anymore which was always NULL anyway.
This commit also adds some documentation to events.h
Change-Id: I13e29a0f88ef908f175b376d83550f9e0231f772
This fixes the radioart crash that was the result of buffering.c working
on a freed buffer at the same time as buflib (radioart uses buffering.c for the
images). With this change the buffer is owned by buflib exclusively so this
cannot happen.
As a result, audio_get_buffer() doesn't exist anymore. Callers should call
core_alloc_maximum() directly. This buffer needs to be protected as usual
against movement if necessary (previously it was not protected at all which
cased the radioart crash), To get most of it they can adjust the willingness of
the talk engine to give its buffer away (at the expense of disabling voice
interface) with the new talk_buffer_set_policy() function.
Change-Id: I52123012208d04967876a304451d634e2bef3a33
1) Now that recording is working a few keymaps update are required.
2) also implement the radio.c file so that fm dedicated keymaps
works.
3) implement some missing fm keymaps
4) manual updated accordingly
Change-Id: I40be3e245853ccb9ed7a5bc5a76fe4ed90772272
Reviewed-on: http://gerrit.rockbox.org/513
Reviewed-by: Amaury Pouly <amaury.pouly@gmail.com>
after unlocking the device while being into FM
radio screen. This patch restores expected behaviour by
forcing screen refresh when receiving the proper event.
Change-Id: Ibe0864ab78619ddf235912d06a2efe3203b5042a
Reviewed-on: http://gerrit.rockbox.org/505
Reviewed-by: Lorenzo Miori <memorys60@gmail.com>
Tested-by: Lorenzo Miori <memorys60@gmail.com>
Reviewed-by: Thomas Martitz <kugel@rockbox.org>
Change-Id: I75efbf1077359e4218ad33f4c1d885b24c0b7b01
Reviewed-on: http://gerrit.rockbox.org/421
Reviewed-by: Jonathan Gordon <rockbox@jdgordon.info>
Reviewed-by: Thomas Martitz <kugel@rockbox.org>
The code was pretty broken with regard to the handle management of radio art
images, e.g. passing the wrong data to bufopen().
Change-Id: I3480f40bce81af05d14dbf045a78485c857fb261
Basically it uses the default SI4700 radio chip driver, the only thing that's different is the I2C access,
written specifically to interact with my kernel module.
Next things to add are:
- RDS support!
Change-Id: I0ed125641e00f93124d7a34f90dd508e7f1db5a4
Signed-off-by: Lorenzo Miori <memorys60@gmail.com>
...by default where they would be interpreted as valid but not actually
be which would cause calls to buffering while it was not initialized.
Add BUFFER_EVENT_BUFFER_RESET to inform users of buffering that the
buffer is being reinitialized. Basically, this wraps all the
functionality being provided by three events (...START_PLAYBACK,
RECORDING_EVENT_START, RECORDING_EVENT_STOP) into one for radioart.c,
the only user of those events (perhaps remove them?) and closes some
loopholes.
Change-Id: I99ec46b9b5fb4e36605db5944c60ed986163db3a
Remove direct calls to tuner_power(...) in apps/ and let
the driver manage tuner power with the RADIO_SLEEP setting.
Change-Id: I37cd0472e60db5d666dae1b9fe4755dd65c03edd
Reviewed-on: http://gerrit.rockbox.org/84
Reviewed-by: Amaury Pouly <amaury.pouly@gmail.com>
The data abort was in find_handle() because current_handle was corrupted. This
most probably happened due to the FMS allocating Radio AA on the buffer without
resetting the buffer, corrupting buffering/playback state.
The fix is to grab buffer control explicitely.
r30308 isn't actually related, regardless of the task title.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30342 a1c6a512-1295-4272-9138-f99709370657
The buffer_offset paramter of audio_init_recording() is removed as it
was unused in both implementations.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30310 a1c6a512-1295-4272-9138-f99709370657
Use the plugin buffer to save the playlist copy if there isnt enough buffer already allocated to the inram copy of the playlist
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30184 a1c6a512-1295-4272-9138-f99709370657
Forgot to adapt radio art to the new bufopen user_data argument.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29598 a1c6a512-1295-4272-9138-f99709370657
fix a bug which stopped the setting_inc/dec touch actions from parsing
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29477 a1c6a512-1295-4272-9138-f99709370657
* Add struct browse_context to be passed to rockbox_browse.
* Show proper title when selecting e.g. .wps file or .sbs file from the settings menu.
* Add select only mode to rockbox_browse(). when a file is selected, it's path is stored to buffer and the browser exits without 'playing' the file.
this will allow to use the browser in more places to select file including plugins.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28831 a1c6a512-1295-4272-9138-f99709370657
Skins are now more self contained in the skin manager which in the future might allow on demand skin loading (i.e smaller skin buffers)
Skin backdrops are also managed more intelegently (fixes a bug where you can get a crazy backdrop loaded if a .sbs fails to load)
the rockbox_default rescue theme is now called rockbox_failsafe to better express what it actually is.
This commit hopefully/maybe fixes the heavily reported data aborts, so please check if you are getting them
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28073 a1c6a512-1295-4272-9138-f99709370657
