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138 commits

Author SHA1 Message Date
Michael Sevakis
307cb04948 AS3525v1/2: Enable nested handling of interrupts 
Mostly for the sake of reducing latency for audio servicing where other service
routines can take a long time to complete, leading to occasional drops of a
few samples, especially in recording, where they are fairly frequent.

One mystery that remains is GPIOA IRQ being interrupted causes strange
undefined instruction exceptions, most easily produced on my Fuze V2 with a
scrollwheel. Making GPIOA the top ISR for now, thus not interruptible, cures it.

SVC mode is used during the actual calls. Hopefully the SVC stack size is
sufficient. Prologue and epilogue code only uses the IRQ stack and is large
enough.

Any routine code that should not be interrupted should disable IRQ itself from
here on in.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31642 a1c6a512-1295-4272-9138-f99709370657
 2012-01-08 22:29:25 +00:00
Michael Sevakis
5334379cd4 Add comments source comments about the behavior of yield and sleep. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31288 a1c6a512-1295-4272-9138-f99709370657
 2011-12-15 19:57:08 +00:00
Frank Gevaerts
b8bfa84d1b Fix "variable 'result' set but not used" warning 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30172 a1c6a512-1295-4272-9138-f99709370657
 2011-07-19 21:06:30 +00:00
Michael Sevakis
c537d5958e Commit FS#12069 - Playback rework - first stages. Gives as thorough as possible a treatment of codec management, track change and metadata logic as possible while maintaining fairly narrow focus and not rewriting everything all at once. Please see the rockbox-dev mail archive on 2011-04-25 (Playback engine rework) for a more thorough manifest of what was addressed. Plugins and codecs become incompatible. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29785 a1c6a512-1295-4272-9138-f99709370657
 2011-04-27 03:08:23 +00:00
Michael Sevakis
c1a5b66499 No need to save irq again after thread wakeup in queue_wait(_w_tmo), just disable it. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29608 a1c6a512-1295-4272-9138-f99709370657
 2011-03-17 03:35:44 +00:00
Thomas Martitz
cc889e9d60 Change the thread api a bit. 
* Remove THREAD_ID_CURRENT macro in favor of a thread_self() function, this allows thread functions to be simpler.
* thread_self_entry() shortcut for kernel.c.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29521 a1c6a512-1295-4272-9138-f99709370657
 2011-03-05 17:48:06 +00:00
Michael Sevakis
12375d1d3a Merge functionality of wakeups and semaphores-- fewer APIs and object types. semaphore_wait takes a timeout now so codecs and plugins have to be made incompatible. Don't make semaphores for targets not using them. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29492 a1c6a512-1295-4272-9138-f99709370657
 2011-03-02 08:49:38 +00:00
Thomas Martitz
70bb128ae9 Cleanup preprocessor around corelock usage and move its definition outside #ifdef ASSEMBLER_THREADS 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29330 a1c6a512-1295-4272-9138-f99709370657
 2011-02-19 00:09:08 +00:00
Michael Sevakis
ab50ed7171 Add a couple KERNEL_ASSERTs to check queue fullness when extra checks are enabled. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29164 a1c6a512-1295-4272-9138-f99709370657
 2011-01-29 15:03:09 +00:00
Michael Sevakis
3a1127785b Bootloader USB mode for PP502x. Enable only on GoGear SA9200 for the time being. Add HAVE_BOOTLOADER_USB_MODE to config if BOOTLOADER is defined to enable it. Clean up some kernel stuff a little to support it. Mess up a bunch of other stuff (hopefully not too badly). 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29053 a1c6a512-1295-4272-9138-f99709370657
 2011-01-15 08:19:30 +00:00
Michael Sevakis
7b4eb44395 Certain data accesses in the kernel should have volatile semantics to be correct and not rely on the whims of the compiler. Change queue clearing to simply catch read up to write rather than reset both to 0 to ensure sane results for queue_count and queue_empty with concurrency. Binsize may or may not increase a bit depending upon whether the output was as intended in all places; wrong stuff was already unlikely to cause any issue. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28909 a1c6a512-1295-4272-9138-f99709370657
 2010-12-27 10:05:09 +00:00
Michael Sevakis
f387cdef21 Make mutexes a tiny bit leaner. There is no need for a separate locked semaphore since having an owning thread also indicates that it is locked. Rename member 'count' to 'recursion' since it counts reentry, not locks. Change presents no compatibility issues for plugins or codecs because the structure size goes down. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28901 a1c6a512-1295-4272-9138-f99709370657
 2010-12-26 05:59:39 +00:00
Thomas Martitz
6eaab4d004 Ged rid of uisimulator/common/io.c for android builds. 
Use host's functions for file i/o directly (open(), close() ,etc.), not the sim_* variants.
Some dir functions need to be wrapped still because we need to cache the parents dir's path (host's dirent doesn't let us know).
For the same reason (incompatibility) with host's dirent) detach some members from Rockbox' dirent struct and put it into an extra one,
the values can be retrieved via the new dir_get_info().

Get rid of the sim_ prefix for sleep as well and change the signature to unix sleep().

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27968 a1c6a512-1295-4272-9138-f99709370657
 2010-09-01 21:29:34 +00:00
Rafaël Carré
0ae6f70fdd avoid dereferencing void** to remove warnings when building with -Os 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26733 a1c6a512-1295-4272-9138-f99709370657
 2010-06-10 02:26:09 +00:00
Amaury Pouly
2558be2579 kernel: the header says queue_peek should always be compiled in but the source put it in the #ifdef HAVE_EXTENDED_MESSAGING_AND_NAME section 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26229 a1c6a512-1295-4272-9138-f99709370657
 2010-05-21 12:58:00 +00:00
Michael Sevakis
fcf36dd4f9 Simplify mpegplayer a bit and use array-based lists rather than linked lists for stream management. Move a couple useful functions to handle pointer arrays from kernel.c into general.c; mpeglayer now makes use of them. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26101 a1c6a512-1295-4272-9138-f99709370657
 2010-05-17 12:34:05 +00:00
Thomas Martitz
3d0cee8abb - Move uisimulator/sdl/*.[ch] into the target tree, under firmware/target/hosted/sdl, uisdl.c is split up across button-sdl.c and system-sdl.c. 
- Refactor the program startup. main() is now in main.c like on target, and the implicit application thread will now act as our main thread (previously a separate one was created for this in thread initialization).

This is part of Rockbox as an application and is the first step to make an application port from the uisimulator. In a further step the sim bits from the sdl build will be separated out.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26065 a1c6a512-1295-4272-9138-f99709370657
 2010-05-15 21:02:47 +00:00
Bertrik Sikken
c493a1e39d Use boolean instead of int for keeping track of mutex signalled state and wakeup signalled state 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25671 a1c6a512-1295-4272-9138-f99709370657
 2010-04-18 15:24:39 +00:00
Alexander Levin
9c3dc70af5 Add the guard where it should be used. The net effect is zero now but it might be not in the future if the definitions are changed. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25669 a1c6a512-1295-4272-9138-f99709370657
 2010-04-18 14:59:09 +00:00
Thomas Martitz
c31fdeffdc Convert macro to inline function and move it into .c file. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25658 a1c6a512-1295-4272-9138-f99709370657
 2010-04-16 22:11:40 +00:00
Thomas Martitz
d9af87c40b Use API call instead of accessing a global variable for receiving the current thread. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25657 a1c6a512-1295-4272-9138-f99709370657
 2010-04-16 22:01:59 +00:00
Andree Buschmann
05778b501d Fix further tabs 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24156 a1c6a512-1295-4272-9138-f99709370657
 2010-01-03 10:50:34 +00:00
Robert Kukla
2d722a17ec make tpj1022 bootloader compile again 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23892 a1c6a512-1295-4272-9138-f99709370657
 2009-12-07 16:12:49 +00:00
Bertrik Sikken
d24d885aa4 Use wrap-safe TIME_BEFORE/TIME_AFTER macros to compare times with current_time, instead of comparing them directly. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23246 a1c6a512-1295-4272-9138-f99709370657
 2009-10-18 15:50:30 +00:00
Nicolas Pennequin
396aeafa6c Correct Björn's name in various file headers. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20491 a1c6a512-1295-4272-9138-f99709370657
 2009-03-23 17:08:46 +00:00
Michael Sevakis
3cf148945e Remove struct spinlock to cleanup some mess and simplify. It's only used in boosting for multiprocesors and a pure two-corelock heirarchy will do just fine. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19910 a1c6a512-1295-4272-9138-f99709370657
 2009-02-03 12:16:45 +00:00
Michael Sevakis
580d91f097 Unify kernel list management for ticks, registered queues and timeout objects by using NULL-terminated lists of pointers. Redo timeout API a bit to simplify it and integrate it. Should give some small binsize reduction accross the board but more if timeout objects are being included. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19808 a1c6a512-1295-4272-9138-f99709370657
 2009-01-21 02:44:20 +00:00
Michael Sevakis
0fab3e36f3 Place some LIKELY and UNLIKELY hints in kernel where I can definitively say anything about it and where it could make a small difference. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19433 a1c6a512-1295-4272-9138-f99709370657
 2008-12-14 07:09:26 +00:00
Michael Sevakis
8cfbd3604f Use cookies for thread identification instead of pointers directly which gives a buffer against wrongly identifying a thread when the slot is recycled (which has been nagging me for awhile). A slot gets 255 uses before it repeats. Everything gets incompatible so a full update is required. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19377 a1c6a512-1295-4272-9138-f99709370657
 2008-12-10 08:57:10 +00:00
Michael Sevakis
cb06108024 Meg-FX: Enable a real tick in the bootloader. Do cleanups before switching to firmware and cache handling. Put proper main return address in lr. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19368 a1c6a512-1295-4272-9138-f99709370657
 2008-12-08 23:31:05 +00:00
Michael Sevakis
528ec2a555 Meg F/X: Radically changing divider settings messed up the fake sleep in the bootloader. They aren't reset even after powering off. Make sure they are always specified. Move that code to target tree as well. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19358 a1c6a512-1295-4272-9138-f99709370657
 2008-12-07 17:48:42 +00:00
Michael Sevakis
48544f070b Move kernel tick initialization and handling to the target tree for ones remaining in kernel.c 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18919 a1c6a512-1295-4272-9138-f99709370657
 2008-10-29 10:26:46 +00:00
Michael Sevakis
a9e69d935c Strange little kernel optimization to ease targeting the timer tick and to limit the number of loops in the tick function to the number of tasks added rather than always looping the max number. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18893 a1c6a512-1295-4272-9138-f99709370657
 2008-10-27 16:30:24 +00:00
Michael Sevakis
effceea229 Remove the event object in the kernel since it's rather extraneous at the moment. This makes the codecs and the plugins incompatible, so update fully. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18867 a1c6a512-1295-4272-9138-f99709370657
 2008-10-23 13:13:00 +00:00
Daniel Stenberg
2acc0ac542 Updated our source code header to explicitly mention that we are GPL v2 or 
later. We still need to hunt down snippets used that are not. 1324 modified
files...
http://www.rockbox.org/mail/archive/rockbox-dev-archive-2008-06/0060.shtml


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17847 a1c6a512-1295-4272-9138-f99709370657
 2008-06-28 18:10:04 +00:00
Maurus Cuelenaere
e031db4b87 1) Use a separate config-<target>.h for Zen Vision(:M) (60GB) 
2) Other unrelated cleanups


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17503 a1c6a512-1295-4272-9138-f99709370657
 2008-05-14 18:55:19 +00:00
Nicolas Pennequin
357ffb3c46 Convert the whole codebase to UTF-8, except docs/COMMITTERS and tools/creative.c, which need checking. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17369 a1c6a512-1295-4272-9138-f99709370657
 2008-05-05 10:32:46 +00:00
Maurus Cuelenaere
95167e0177 Commit whole Creative Zen Vision:M target tree + all related firmware/ 
changes.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17241 a1c6a512-1295-4272-9138-f99709370657
 2008-04-24 20:08:28 +00:00
Michael Sevakis
0b1d7e76d7 Serial driver for imx31. Perhaps not 100% but maybe 80-90% (future developments will tell). Factor-out the mc13783 stuff and make that driver a layer above the SPI. TODO: start processing PMIC interrupts. Start a clkctl API for imx31 (we'll see if this sticks around but it seems reasonable here). Misc. stuff for convenience/neatness. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17070 a1c6a512-1295-4272-9138-f99709370657
 2008-04-11 08:51:27 +00:00
Michael Sevakis
05099149f1 Enable nocache sections using the linker. PP5022/4 must use SW_CORELOCK now with shared variables in DRAM (it seems swp(b) is at least partially broken on all PP or I'm doing something very wrong here :\). For core-shared data use SHAREDBSS/DATA_ATTR. NOCACHEBSS/DATA_ATTR is available whether or not single core is forced for static peripheral-DMA buffer allocation without use of the UNCACHED_ADDR macro in code and is likely useful on a non-PP target with a data cache (although not actually enabled in config.h and the .lds's in this commit). 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16981 a1c6a512-1295-4272-9138-f99709370657
 2008-04-06 04:34:57 +00:00
Michael Sevakis
3c8d93e091 Change a #define constant that conflicts with a mingw definition. Change "WAIT_*" to "OBJ_WAIT_*". 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16906 a1c6a512-1295-4272-9138-f99709370657
 2008-04-01 03:55:02 +00:00
Michael Sevakis
bc192c953e Add a lightweight wakeup object for fast processors. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16885 a1c6a512-1295-4272-9138-f99709370657
 2008-03-30 04:59:51 +00:00
Michael Sevakis
f54def9dd5 queue_delete should reset the blocker_p member. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16859 a1c6a512-1295-4272-9138-f99709370657
 2008-03-28 03:02:14 +00:00
Michael Sevakis
af395f4db6 Do core interrupt masking in a less general fashion and save some instructions to decrease size and speed things up a little bit. Small fix to a few places where interrupts would get enabled again where they shouldn't have been (context switching calls when disabled). 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16811 a1c6a512-1295-4272-9138-f99709370657
 2008-03-26 01:50:41 +00:00
Michael Sevakis
27cf677339 Add a complete priority inheritance implementation to the scheduler (all mutex ownership and queue_send calls are inheritable). Priorities are differential so that dispatch depends on the runnable range of priorities. Codec priority can therefore be raised in small steps (pcmbuf updated to enable). Simplify the kernel functions to ease implementation and use the same kernel.c for both sim and target (I'm tired of maintaining two ;_). 1) Not sure if a minor audio break at first buffering issue will exist on large-sector disks (the main mutex speed issue was genuinely resolved earlier). At this point it's best dealt with at the buffering level. It seems a larger filechunk could be used again. 2) Perhaps 64-bit sims will have some minor issues (finicky) but a backroll of the code of concern there is a 5-minute job. All kernel objects become incompatible so a full rebuild and update is needed. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16791 a1c6a512-1295-4272-9138-f99709370657
 2008-03-25 02:34:12 +00:00
Michael Sevakis
a07c034de7 Gigabeat S: Interrupt enabled bootloader. Miscellaneous integration changes. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16243 a1c6a512-1295-4272-9138-f99709370657
 2008-02-08 02:20:05 +00:00
Michael Sevakis
1f021af60c Gigabeat S mixer: Make some progress. Get the tick and core sleep working using the AVIC. Redo the startup code to remap from IRAM and not include the lcd driver frambuffer in the remapping (until it can be moved). Clean up LCD driver. For other misc. changes, see the diffs. Now it progresses to ATA init and fails with -11 but without crashing or hanging. Replace all bootloaders. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16216 a1c6a512-1295-4272-9138-f99709370657
 2008-02-05 04:43:19 +00:00
Michael Sevakis
32a531b09b Do some simplification in switch_thread regarding interrupt enabling which simplifies kernel objects as well. Simply doing unconditional disable/enable should be fine in the firmware. Not sure about the case in the bootloader for all targets and so will evaluate but that should be fine too if everything is masked. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16107 a1c6a512-1295-4272-9138-f99709370657
 2008-01-19 13:27:47 +00:00
Michael Sevakis
6a8379674c Finally, out goes struct spinlock for anything but mutiprocessor targets where it becomes a reenterable corelock. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16105 a1c6a512-1295-4272-9138-f99709370657
 2008-01-18 13:12:33 +00:00
Michael Sevakis
3c64ace573 Fix FS#8052 - kernel.c compilation errors when compiling for debug. Just some minor typos that got in with last minute SW corelock changes. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15380 a1c6a512-1295-4272-9138-f99709370657
 2007-10-30 20:36:23 +00:00