Playback is implemented using a target-specific PCM layer,
using the STM32H7 SAI & DMA registers directly. There are
a number of pop/click issues:
1. Slight click when powering up the amplifiers
2. Click when starting and stopping playback
3. Popping when changing playback frequency
4. Popping when shutting down
It should be possible to eliminate or at least mitigate
(2) to (4) in software, but (1) happens as a result of
powering on the amplifiers while everything is muted so
might be unavoidable.
Change-Id: I398b66596176fb2341beb7deba7bf6f4f3fb82b3
Toggling to the second card was allowed if HAVE_HOTSWAP
was defined, but on targets with a single hotswappable
SD card -- for example many JZ47xx/X1000 targets -- this
ends up calling card_get_info() on a non-existent drive.
A slightly better option is to check if NUM_DRIVES is
greater than 1. This is still just guessing the number
of SD/MMC slots, but it should be wrong in fewer cases.
Change-Id: Ifca29323f1c7091d9cce55c73147d0d1decae9a5
move target-specific pcm operations into builtin_pcm_sink.
in subsequent commits, another pcm_sink is added, and it becomes
possible to switch between them.
Change-Id: I8f8b9661e01d6e6472f34224ddc3760856778457
* Enhance LANG_VOICED_DATE_FORMAT to distinguish between "numeric year"
and "grouped year" (2020 -> "two thousand twenty" vs "twenty twenty",
respectively)
* Metadata year voicing will now use "numeric year" if specified in
LANG_VOICED_DATE_FORMAT instead of always using grouped year.
* Datetime year voicing respects the format instead of always using
"numeric year"
Change-Id: Icc25da7c36107d3e4e8c70291f87a915e2bcabd3
I added the setting keep_directory which automatically updates
the last directory visited and restores it on next boot
--added manual entry
Change-Id: I0ffe6531d591d693806ce0bf56fe22b99e3315e9
Due to the unicode data tables, this is a pretty large library,
adding ~340K to the binary size (ie a 50% increase on some targets)
Note that nothing in-tree actually _uses_ utf8proc yet. The plan:
1) In the metadata parser, fully normalize+compose all strings.
2) When looking up font glyphs, if we do not find an exact
match for the codepoint, try to decompose and render the result.
3) Normalize all filenames as we read them, ie before we store them
in lists or compare filenames/pathnames.
4) Use utf8proc for casefolding-aware sorting (on native devices)
Change-Id: I2252cee3e7891d12ff37867231aa2c20353f857b
Though the rev1 hardware is capable of recording from a
headset mic, this feature seems likely to be dropped on
future hardware revisions, and I don't see much point to
implementing it now.
Change-Id: I77e403bdd1ca53f9018835d3c3042dc86ee0f8f3
Remove the generic TLV320AIC3104 codec header. The codec
is sufficiently complex that a one-size-fits-all driver
isn't really feasible, eg. due to different clocking and
output configurations.
It's easier for targets to have their own audio headers
tailored to their use case than a generic header with
lots of ifdefs.
Change-Id: I63d92d57c28ddd7da7aa3174bd583d8afb1aa56d
Firmware didn't start sleep countdown if
1. Display was already dimmed
2. Fade out timer was set
You can reproduce this by:
1. Set fade out timer. For example, 500ms
2. Wait till display will be dimmed and go to sleep
3. Switch hold ON or plug headphones
Change-Id: I27ca857aa8db4551bd9caad4815cd73a64bf6185
According to RM0433 the DCTRL register needs to be written
after DLENR and DTIMER. This is respected for data transfer
commands but not for non-data commands. Nothing bad seems
to be happening because of this, but it seems wise to rectify
the issue.
Change-Id: I55d8f2c1994bff747e5978847fda57445f001b02
According to RM0433 consecutive writes to the CLKCR and CMDR
registers must be separated by at least 7 AHB clock cycles.
The initialization code didn't respect this and it seemed to
be causing a nasty bug, where the SDMMC bus clock got stuck
at 400 KHz in hardware. Despite the CLKCR register reading
back the correct value, it could not be written with a new
value even in the debugger; resetting the peripheral was the
only way out of this state.
Adding some dummy register reads after any access to CLKCR
should insert the necessary number of wait states. Without
the fix, the SDMMC clock gets stuck about 12% of the time.
With this fix, the clock always initializes correctly.
Change-Id: Iba85b8e1e3c60992ddc42fb4c1e66c37941ed617
Register the M0 Pro as an X1000 device in jztool for USB boot loading.
Uses Shanling USB IDs (0x0525/0xa4a5) for mass storage identification.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Change-Id: I5ab71d6e7dcce925a2c91c2779964b4302ef777e
If not, these devices will charge very slowly (0.07A) when plugged into a wall plug, and will all discharge slowly when docked & playing music.
Enabling this option (that is already enabled by default on some other devices like erosq and fiio m3k) make them pull between 0.20 and 0.30. They charge faster, just as fast as on Stock OS, and won't discharge when playing music while docked.
Change-Id: I90a59caaca463354772b1869f7333d8efce4f117
Replace the factor calculation from pcm-alsa.c, which
is based on signal *power* ratios, with the fp_factor()
calculation that is based on amplitude ratios. Because
power changes with the square of amplitude, this means
1 dB of power equals 2 dB of amplitude.
Rockbox's volume controls are amplitude-based, so the
smallest step size for pcm-alsa was effectively 2 dB.
The fp_factor() method supports 0.1 dB steps and is a
bit more accurate besides, so it's simply superior in
all respects (aside from taking a few more CPU cycles
to calculate the factor).
Change-Id: I34d143c225d8b5e085cde299fc405f83c13314bf
Disabling an IRQ in the NVIC may not take effect right away;
if the IRQ is being disabled to implement a critical section
it's necessary to follow up with dsb + isb to serialize the
NVIC update. Add a helper function for doing this.
Change-Id: Iaaa238ad39997cc3c6d62867d265cf9e9e0e5c4b
pcm_play_data -> mixer_channel_play_data
pcm_set_frequeny -> mixer_set_frequency
pcm_play_stop -> audio_stop at startup / mixer_channel_stop at shutdown
pcm_is_playing -> mixer_channel_status
All of these have been removed from the plugin API. Updated API docs to
clarify role of audio_stop() vs mixer_channel_stop()
Todo: get rid of pcm_play_[un]lock().
Change-Id: I8800c131b51f064ee923a4c6e42aa405d33851fc
With the statusbar enabled, the UI viewport's
font may be different from the UI font, which
breaks stringsize calculations in LRC Player
that are currently all based on the UI font.
Change-Id: Ib53de62134b250fa50353074959843278f38478f
It was added back in 2007 (commit 8b6d28790e) apparently
in a half-baked state, and has never been enabled since.
Change-Id: I728b5730fe05262bae292cd7fcdcfe4b53c4b315
lrcplayer currently automatically scrolls the lyrics for you, as it assumes that there is sync information in the lyrics. In the case where there aren't (like for ID3V2 USLT tags), the plugin will automatically assume timestamps and will scroll automatically.
This commit adds an option in the Display Menu to allow automatic scrolling to be disabled. When disabled, you can scroll the lyrics using the volume keys (like you would on the iPod's OS).
Change-Id: I87ef27fd2b84c97374bdfd0e47f4c00ddb4bc85e
Fix single mode fails to pause between tracks with different sample rates with auto frequency switch enabled.
Fixup for c199d9a3
Change-Id: I51bbd33a15be16b711b3a8e46c0cab1b15a93705
