rockbox/firmware/drivers/audio/ak4537.c, branch master

Samsung YHxxx: reduce pop noise on power down

2015-09-24T21:06:18+00:00

Change-Id: Ifc82ac1051ed05527393838d8aa93bde65287b5d

Ak4537: Optimization of the code.

2014-07-26T15:36:12+00:00

Change-Id: I98e25d7177b24b277a79d8bf8d494dac26553c2c

Radio and radio recording for Samsung YH-920.

2014-06-18T18:06:17+00:00

There is no simple method to detect radio through the 3-wire interface, so it's
not implemented for the YH-925 for now. YH-920 always has a radio.

Change-Id: Iea484d752915fcd40dbbbd7dbbf13e81aaf548db

Samsung YH820/YH92X: Improve recording.

2014-06-18T18:06:17+00:00

Because of architecture of the codec it's always necessary to route the input
signal from ADC to DAC, in order to have a control over the monitoring volume
and in order to hear anything while recording.

Change-Id: I1089894c949ab7371857d74aedb6bdf5a7d39c41

recording on Samsung YH-820/YH-92x

2014-06-01T21:25:12+00:00

Change-Id: I6eac4cf6c16a322910ad17bfbf3105e330cd0e36
Reviewed-on: http://gerrit.rockbox.org/815
Reviewed-by: Szymon Dziok 
Tested: Szymon Dziok

Do some cleanup, adjustment and a couple fixes to recent sound changes.

2013-04-23T00:38:17+00:00

* 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

Fix some more errors and warnings from 0c7b787.

2013-04-15T17:24:29+00:00

Change-Id: Ib67d0ab344e36964cadbcc982dc2afe35733770b

Hopefully knock out most of the red and yellow from 0c7b787.

2013-04-15T16:39:04+00:00

Change-Id: Ib8dd0d011b11ee3eded3025308f19ddb5d151b59

Straighten out the mad twisted state of sound.c and related areas.

2013-04-15T16:02:05+00:00

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

Remove pcm_mute() which has been unused since r19308

2010-04-27T00:05:02+00:00

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