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>
Also move the definition to config.h
Change-Id: I36bb5020c5e06b2344292bc05e8c13ccc7a6a1ff
Reviewed-on: http://gerrit.rockbox.org/234
Reviewed-by: Nils Wallménius <nils@rockbox.org>
* 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 mas35xx driver for all mas35xx targets. Later
mas35xx code from sound.c will move to this new driver
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13464 a1c6a512-1295-4272-9138-f99709370657
* Fix failed compile of enc_config.c when HAVE_MPEG2_SAMPR is not defined.
* Fix bug in AIFF encoder header creation on little endian targets.
* Add recording screen keymaps for H10 and iPod.
* Move pcm_playback PP specific code to target tree.
* Add recording code to wmcodec drivers.
* Add pcm_record code.
Some problems still remain:
* Playback doesn't work after recording until Rockbox is restarted.
* Gain control not implemented.
* Only 16-bit/44KHz for now. The hardware should be capable of up to 24-bit/96KHz.
* Line-in recording not tested on H10.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11794 a1c6a512-1295-4272-9138-f99709370657
Also includes a rewrite of the Coldfire I2C driver to include both read and write.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10272 a1c6a512-1295-4272-9138-f99709370657
Changes:
***1. all platforms:
1.1 corrects gain display bug;
1.2 allows combined setting of stereo gain without an extra
line on the display;
2. iRiver H1xx and H3xx specific:
2.1 correctly named the decimator variables, they were
called 'gain';
2.2 splitted decimator gain settings for mic and line-in so
that they are saved separately;
2.3 added combined analog and decimator gain setting giving a
smooth gain range with the best analog/decimator gain
combination
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8627 a1c6a512-1295-4272-9138-f99709370657
