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* Add mempcpy implementationMichael Sevakis2014-08-29
| | | | | | | | | | | | | | A GNU extension that returns dst + size instead of dst. It's a nice shortcut when copying strings with a known size or back-to-back blocks and you have to do it often. May of course be called directly or alternately through __builtin_mempcpy in some compiler versions. For ASM on native targets, it is implemented as an alternate entrypoint to memcpy which adds minimal code and overhead. Change-Id: I4cbb3483f6df3c1007247fe0a95fd7078737462b
* Base scheduler queues off linked lists and do cleanup/consolidationMichael Sevakis2014-08-16
| | | | | | | | | | | | | | | | | | | | | | | | | Abstracts threading from itself a bit, changes the way its queues are handled and does type hiding for that as well. Do alot here due to already required major brain surgery. Threads may now be on a run queue and a wait queue simultaneously so that the expired timer only has to wake the thread but not remove it from the wait queue which simplifies the implicit wake handling. List formats change for wait queues-- doubly-linked, not circular. Timeout queue is now singly-linked. The run queue is still circular as before. Adds a better thread slot allocator that may keep the slot marked as used regardless of the thread state. Assists in dumping special tasks that switch_thread was tasked to perform (blocking tasks). Deletes alot of code yet surprisingly, gets larger than expected. Well, I'm not not minding that for the time being-- omlettes and break a few eggs and all that. Change-Id: I0834d7bb16b2aecb2f63b58886eeda6ae4f29d59
* Coldfire: Optimize emac context save/restore in mixer ISR.Michael Sevakis2012-03-12
| | | | | | | | | | Save only once if emac is used in ISR and restore only once per ISR call if already saved. Change-Id: I0e40db5d4aab2a8552480f76873f59ff6ccd9977 Reviewed-on: http://gerrit.rockbox.org/176 Tested-by: Michael Sevakis <jethead71@rockbox.org> Reviewed-by: Michael Sevakis <jethead71@rockbox.org>
* Revise the PCM callback system after adding multichannel audio.Michael Sevakis2012-03-03
| | | | | | | | | | | | | | | | | | Additional status callback is added to pcm_play/rec_data instead of using a special function to set it. Status includes DMA error reporting to the status callback. Playback and recording callback become more alike except playback uses "const void **addr" (because the data should not be altered) and recording uses "void **addr". "const" is put in place throughout where appropriate. Most changes are fairly trivial. One that should be checked in particular because it isn't so much is telechips, if anyone cares to bother. PP5002 is not so trivial either but that tested as working. Change-Id: I4928d69b3b3be7fb93e259f81635232df9bd1df2 Reviewed-on: http://gerrit.rockbox.org/166 Reviewed-by: Michael Sevakis <jethead71@rockbox.org> Tested-by: Michael Sevakis <jethead71@rockbox.org>
* Split CPU-optimized beep code into the firmware/asm tree.Michael Sevakis2012-02-18
| | | | | | | | | For now due to current lack of an apps/asm, place the ASM/generic code in the firmware/asm directory. Additionally, make generic beep code more generic. Change-Id: I4a69b6ffcbb97d9e6dfde2209c5a118de19e5638
* find_first_set_bit tweaksMichael Sevakis2012-01-27
| | | | | | | Correct sizing in m68k asm. Make the gerneric version far more generic. Change-Id: I32945f7431771979b3fe0da5472bdb110fd054ae
* Move optimized ffs to firmware/asm, using the new automatic-asm-picking ↵Thomas Martitz2012-01-22
| | | | | | infrastructure. Change-Id: I5e7bdc8be7de50ef604c16078857fff1b84650dc
* Move optimized memcpy and friends and strlen to firmware/asm,Thomas Martitz2012-01-22
| | | | using the new automatic-asm-picking infrastructure.
* Move pcm_mixer helper routines to firmware/asm.Thomas Martitz2012-01-22
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* Create fimrware/asm directory for assembly optimized stuff.Thomas Martitz2012-01-22
This dir is suitable for stuff that doesn't fit the target tree, e.g. because it also builds on hosted or otherwise. It also has a generic subfolder for fallback C implementations so that not all archs need to provide asm files. SOURCES should only contain "foo.c" where foo.c includes the specific <arch>/foo.c files from the subdirs using the preprocessor. This way automatic selection of asm versions or generic C verion is possible. For the start, the thread support files are moved, since ASM threads can be used on hosted platforms as well. Since core_sleep() remains platform specific it's moved to the corresponding system.h headers. Change-Id: Iebff272f3407a6eaafeb7656ceb0ae9eca3f7cb9