Version 1: this patch prolongs startup time by 2 seconds, because the
sleep happens early before other threads have started.
The patch is tested on CreativeZEN and Fuze+.
The datasheet was not very helpfull, so some experimentation was needed.
I came to the following conclusions:
* setting HP to ground:
to prevent popping noises, the headphone output can be set to ground.
This however must be done before any part of the audioout module is
powered up (setting HP to ground itself will lead to a pop otherwise).
This consequently means that HP must NOT be set to ground for powerdown
sequence!
Further study showed that setting HP out to ground has no audible benefit,
controversly not setting/resetting allows for noiseless RoLo-ing.
* headphone amp class A/AB mode:
initially the HP amp is in class A mode, and should be set to
class AB before playing audio, as the datasheet mentions.
If the HP output is set to ground, it must be released BEFORE
setting class AB! Releasing from ground while in AB mode leads
to a very loud pop!
* release HP from ground:
as said before: never release the HP from ground if the HP amp is
set to class AB mode. Therefore the correct order is to power up the
headphone amp, wait some time, release HP from ground, and then
set the amp to class AB mode.
To prevent pop, some time is needed before releasing the HP from gnd.
On CreativeZEN 2 sec seems to be ideal; 1 sec have no audible effect,
1.5 sec softenes the pop to some degree.
* shutting player off
The popping noise when shutting off is much quieter that on power up,
so depopping measures are not absolutely necessary.
However the power off pop can be silenced by inserting a wait time
after the audioout block is closed and before the rest of the chip
is powered down. The longer the better, a time of 5 sec practically
eliminates the pop.
Note that RoLo-ing can still produce noise, because the audio device
is not properly shut down.
Change-Id: Ib20e1d613b346433d2a711c442e303ededc26e78
Makes sure any fonts specified are either:
* Present in the theme itself
* One of the fonts in the Rockbox bundle
Change-Id: I215132835e2ae7faa06662637bc867df9c5dba92
Using pf_idx.album_untagged_idx initialized as to -1 instead of 0,
we can get rid of buggy duplicate untagged albums while keeping "usable"
untagged albums and properly displaying all albums for the first artist
when there are no untagged ablums at all.
Change-Id: I067ce0bba4ece5e2d9466ffd075af8bf653633b4
This commit adds new files written exclusively for the 3ds port.
Additional comments:
1. Plugins works, but will be enabled in future commits.
2. The port has only been tested on the New 3DS.
3. Not all features of rockbox have been tested so there may be bugs or non-functional features.
4. There is a known issue where a random crash can occur when exiting the app.
Change-Id: I122d0bea9aa604e04fca45ba8287cf79e6110769
This commit adds changes to the original rockbox sources.
Note: the port files, functions, folders, etc., will be referred
to as 'ctru' to avoid using the Nintendo name elsewhere.
Change-Id: I0e2d3d4d2a75bd45ea67dc3452eb8d5487cf1f5a
This reverts commit 4bc336b8be.
Reason for revert: Font coverage for decomposed diacritics is actually *worse* than using fully composed characters.
Change-Id: Ide37dadd5e9883c1c764ffa35f7e64a7ba91d705
We already have pretty solid support for glyph combining, so this will
allow us to utilize that to fill in gaps of our font coverage. This is
most notable for Vietnamese, Turkish, and numerous other latin-based
writing systems that have unique glyphs that are essentially just a
"standard" ascii letter plus a diacritic mark.
This leaves *voice* strings fully composed/normalized.
It also has no effect on user-supplied strings (eg filenames or file
metadata)
When we eventually utf8proc merged, this can be removed in favor
of always doing the [de]composition in-system. We will also need
to revisit our diacritic tables to ensure there's nothing missing.
Change-Id: I7012d27010bb33fb0b565ac7dfd57a16bdcad34f
Added lcd inversion
Fix issue where backlight would turn on before first frame rendered
Fix issue where backlight would shortly appear at 100% before PWM is
ready during fade in
Turn off backlight before booting/RoLo/shutdown to avoid it being
enabled on next boot
Fix issue where fade in isn't smooth because brightness levels below 13 were
basically equalivent to off, by removing these brightness levels
Change-Id: I868eae2cbeea52c6af7d09c886958ff46167fe26
Simulators (and some hosted targets) no longer get a free pass!
This commit includes general fixes for simulator builds, but it
will undoubtedly result in many more warnings that need to be properly
fixed.
Change-Id: I6bb9d3fc4a29ccfe40366c438e058b5dfff0ddc3
'arm946cc' was only used by the never-finished 'tcc77x' targets that
were removed from the tree in 3ba2f6e5c7 (April 2021)
Change-Id: I935847ec9d339b8e90c6d2362113c2ff94b8b20f
Leading spaces in particular were resulting in Linux warnings/panics, but
to be safe strip out all spaces, including those in the middle.
This was noticed on an ipod6g with the stock hard drive; it reported
a serial number of ' xxxxxxxx', which is technically legal
per ATA specs, but needs to be properly trimmed.
Change-Id: I34309fe64b341caefd5b18f6d0cf539cb97d4a38
