Nick some aspects from the as3525 ascodec driver to improve throughput in
the beast's SPI communications by switching tranfer descriptors to the
caller's stack and getting rid of thread synchronization.
Fix a bug that suddenly became obvious that could permanently stall the SPI
driver because all data could be shifted out before the interrupt could get
serviced. In that case, it needs a kick to restart it. Should probably put
the SPI interrupt priority above DVFS.
A tweak to the event registration interface to simplify it.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31353 a1c6a512-1295-4272-9138-f99709370657
Massage the way it interfaces a bit to make things more flexible.
The chroma_buf scheme on Sansa Connect and Creative ZVx calling the
lcd_write_yuv420_lines implementation in lcd-as-memframe.S with five params
with a chroma buffer that the function can't use wouldn't work anyway so just
have them use the stock implementation (really, how was that working?).
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31335 a1c6a512-1295-4272-9138-f99709370657
code, especially init sequence, is much more similar to usb-s3c6400x.c
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31231 a1c6a512-1295-4272-9138-f99709370657
This will help debugging, and can be disabled for releases if needed
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31226 a1c6a512-1295-4272-9138-f99709370657
Use common defines in usb-s3c6400.c and usb-drv-as3525v2.c
No functional changes
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31220 a1c6a512-1295-4272-9138-f99709370657
- ata.h is for users of ata.c
- ata-driver.h is for functions implemented by target-specific code and used by ata.c
- ata-target.h is for target-specific defines
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31182 a1c6a512-1295-4272-9138-f99709370657
Fix problems with volume of recorded material by converting 14-bit samples to
16-bit. Remove duplicate samples from recorded data and support proper
samplerate since ADC runs 1/2 the codec clock. Support monitoring mono on both
output channels by feeding data manually to I2SOUT under the right conditions.
DMA is no longer used for recording since frames must be processed as described
above but it does allow full-duplex audio.
Miscellaneous change includes a proper constant (HW_SAMPR_DEFAULT) to reset the
hardware samplerate when recording is closed. PP5024 and AS3525 have different
default recording rates (22kHz and 44kHz respectively) but both have half-speed
ADC.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31180 a1c6a512-1295-4272-9138-f99709370657
* shrinking now considers freespace just before the alloc-to-be-shrinked,
that means less (or sometimes none at all) is taken from the audio buffer.
* core_available() now searches for the best free space, instead of simply the end,
i.e. it will not return 0 if the audio buffer is allocated and there's free space
before it. It also runs a compaction to ensure maximum contiguous memory.
audio_buffer_available() is also enhanced. It now considers the 256K reserve buffer,
and returns free buflib space instead if the audio buffer is short.
This all fixes the root problem of FS#12344 (Sansa Clip+: PANIC occurred when
dircache is enabled), that alloced from the audio buffer, even if it was very
short and buflib had many more available as free space before it.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31006 a1c6a512-1295-4272-9138-f99709370657
Included are drivers for buttons, backlight, lcd, audio and storage.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31000 a1c6a512-1295-4272-9138-f99709370657
Origional implementation by Robert Keevil with contributions from Frederik Vestre, Stoyan Stratev, Craig Elliott, Michael Sparmann, Thomas Schott, Rosso Maltese, and syncs from a bunch of other people!
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30995 a1c6a512-1295-4272-9138-f99709370657
This uses the alpha blending capabilities introduced with anti-aliased fonts
to draw bitmaps with transparency information. The bmp loader is extended to read
this information (pass FORMAT_TRANSPARENT in format). The alpha information will
be used when drawing the bitmap.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30937 a1c6a512-1295-4272-9138-f99709370657
This new APIs wrap around lcd_[mono|transparent]_bitmap/_part calls and
handle all kinds bitmaps. The intended use is to draw bitmaps that
come from read_bmp_fd/_file.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30936 a1c6a512-1295-4272-9138-f99709370657
