* SOUND_x enum can be generated by audiohw_settings.h along with settings
entries and sound_val2phys.
* VOLUME_MIN and VOLUME_MAX are no longer necessary within sound.c. If
you need them, they are for target-defined purposes.
* Fix up SDL volume implementation in sdl.c. Move sim volume calculation
code to pcm-sdl.c.
* Min trigger tresholds were based upon VOLUME_MIN for some reason.
These setting have nothing to do with playback volume. Since it is no
longer present, set these at -89dB which is the minimum peak meter
sensitivity setting.
* Fix an oversight in wm8758.c. I forgot to add the dB->register
conversion to audiohw_set_volume.
Change-Id: Ie1df33f1793eee75e6793f16bc7bddd16edb7f75
This is going right in since it's long overdue. If anything is goofed,
drop me a line or just tweak it yourself if you know what's wrong. :-)
Make HW/SW codec interface more uniform when emulating HW functionality
on SWCODEC for functions such as "audiohw_set_pitch". The firmware-to-
DSP plumbing is in firmware/drivers/audiohw-swcodec.c. "sound_XXX"
APIs are all in sound.c with none in DSP code any longer.
Reduce number of settings definitions needed by each codec by providing
defaults for common ones like balance, channels and SW tone controls.
Remove need for separate SIM code and tables and add virtual codec header
for hosted targets.
Change-Id: I3f23702bca054fc9bda40f49824ce681bb7f777b
Implements double-buffered volume, balance and prescaling control in
the main PCM driver when HAVE_SW_VOLUME_CONTROL is defined ensuring
that all PCM is volume controlled and level changes are low in latency.
Supports -73 to +6 dB using a 15-bit factor so that no large-integer
math is needed.
Low-level hardware drivers do not have to implement it themselves but
parameters can be changed (currently defined in pcm-internal.h) to work
best with a particular SoC or to provide different volume ranges.
Volume and prescale calls should be made in the codec driver. It should
appear as a normal hardware interface. PCM volume calls expect .1 dB
units.
Change-Id: Idf6316a64ef4fb8abcede10707e1e6c6d01d57db
Reviewed-on: http://gerrit.rockbox.org/423
Reviewed-by: Michael Sevakis <jethead71@rockbox.org>
Tested-by: Michael Sevakis <jethead71@rockbox.org>
Remove audiohw_mute from header as well, and make this function static
to each driver (commented out when it was unused)
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25733 a1c6a512-1295-4272-9138-f99709370657
* Add software based volume control for a certain range (SW_VOLUME_MIN -> SW_VOLUME_MAX)
* Make Onda VX747 use it
* Don't change volume or frequency in Ingenic Jz4740 codec driver when they're already set
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22106 a1c6a512-1295-4272-9138-f99709370657
* Add initial RoLo support
* Don't enable IRAM in plugins for now
* Initial try at getting PCM working (doesn't crash anymore at least)
* Replace hard-coded constant with #define in usb-jz4740
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20115 a1c6a512-1295-4272-9138-f99709370657
* Implement lcd_flip()
* Add support for multiple banks in NAND driver
* Add basic I²C driver (untested)
* Get audio back working
* Add power driver
* Other minor fixes and cleanups
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19863 a1c6a512-1295-4272-9138-f99709370657
* Get audio working (only noise atm)
* Clean up some stuff in USB
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19329 a1c6a512-1295-4272-9138-f99709370657
