suspect-devices/circuitpython/supervisor/shared/background_callback.c, branch 6.0.xCircuitPython - a Python implementation for teaching coding with microcontrollershttps://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=6.0.x2020-10-07T22:23:47+00:00Unify iMX flash config and add Metro M7 10112020-10-07T22:23:47+00:00Scott Shawcroftscott@tannewt.org2020-09-29T02:21:17+00:00urn:sha1:09bc4157516dd59754a3eb1a5dbbb72a758ebe93
This unifies the flash config to the settings used by the Boot ROM.
This makes the config unique per board which allows for changing
quad enable and status bit differences per flash device. It also
allows for timing differences due to the board layout.
This change also tweaks linker layout to leave more ram space for
the CircuitPython heap.
background callbacks: Clear any callbacks that were queued2020-07-20T13:44:39+00:00Jeff Eplerjepler@gmail.com2020-07-20T13:44:39+00:00urn:sha1:db43c56f794508689b07d931c16cadd3e98aad87
Before this, a background callback that was on the list when
background_callback_reset was called could have ended up in a state
that made it "un-queueable": its "prev" pointer could have been non-NULL.
background_callback_gc_collect: We must traverse the whole list2020-07-17T19:55:46+00:00Jeff Eplerjepler@gmail.com2020-07-17T19:55:46+00:00urn:sha1:98eef79faaa36adbdd0b074c712aad5df7ef37a0background_callback: Add gc collect callback2020-07-17T13:36:26+00:00Jeff Eplerjepler@gmail.com2020-07-17T13:36:26+00:00urn:sha1:a18a39210919a886d4efb4c52b85a309b3403abf
A background callback must never outlive its related object. By
collecting the head of the linked list of background tasks, this will
not happen.
One hypothetical case where this could happen is if an MP3Decoder is
deleted while its callback to fill its buffer is scheduled.
background_callback: Avoid CALLBACK_CRITICAL_BEGIN with nothing to do2020-07-15T14:26:47+00:00Jeff Eplerjepler@gmail.com2020-07-10T19:42:21+00:00urn:sha1:36b46465167f15eaf8535608b16859e6de10fac8
CALLBACK_CRITICAL_BEGIN is heavyweight, but we can be confident we do
not have work to do as long as callback_head is NULL.
This gives back performance on nRF.
supervisor: Add a linked list of background callbacks2020-07-15T14:26:47+00:00Jeff Eplerjepler@gmail.com2020-05-11T13:37:20+00:00urn:sha1:1474fccd2fb1cf6ccd14979a3b5405d2a355054b
In time, we should transition interrupt driven background tasks out of the
overall run_background_tasks into distinct background callbacks,
so that the number of checks that occur with each tick is reduced.