rockbox/firmware/drivers/audio, branch duke3d

nwzlinux: add support for radio

2017-11-06T20:37:06+00:00

None of the Sony up to A15 seem to support RDS (they use either Si4702 or Si4708),
thus I did not add any code to support RDS.

Change-Id: I64838993b9705b36b94665f8470c7a89c772c961

sonynwz: add api and debug entries for "acoustic" and "cue/rev" mode

2017-10-07T20:01:00+00:00

We don't really know what those are supposed to do. They seem to change the
volume curve but it is not very clear what is the intended purpose.

Change-Id: I65f5d18aba139844c23df092277ba17ee8518f96

sonynwza10/a20: enable pcm frequency selection

2017-10-01T15:23:43+00:00

Change-Id: I335fcdbb652253e777d0d7406545d0d44d98f4f0

Initial commit for the Sony NWZ linux port

2017-09-05T19:42:12+00:00

SUPPORTED SERIES:
- NWZ-E450
- NWZ-E460
- NWZ-E470
- NWZ-E580
- NWZ-A10

NOTES:
- bootloader makefile convert an extra font to be installed alongside the bootloader
  since sysfont is way too small
- the toolsicon bitmap comes from the Oxygen iconset
- touchscreen driver is untested

TODO:
- implement audio routing driver (pcm is handled by pcm-alsa)
- fix playback: it crashes on illegal instruction in DEBUG builds
- find out why the browser starts at / instead of /contents
- implement radio support
- implement return to OF for usb handling
- calibrate battery curve (NB: of can report a battery level on a 0-5 scale but
  probabl don't want to use that ?)
- implement simulator build (we need a nice image of the player)
- figure out if we can detect jack removal

POTENTIAL TODOS:
- try to build a usb serial gadget and gdbserver

Change-Id: Ic77d71e0651355d47cc4e423a40fb64a60c69a80

wm8975: document audiohw settings

2016-12-12T12:13:13+00:00

Change-Id: I0456f85e4ebc821c23e25026fbee3d8cf7526ee7

wm8758: document and fix audiohw settings

2016-12-12T12:12:47+00:00

It looks like a copy and paste error to me, those were completely wrong.

Change-Id: Id6ae025f4216ffccb1a8b8b790916d8b6c4694bd

wm8751: document and fix audiohw settings

2016-12-12T12:12:15+00:00

Document 3D depth range. Fix mismatch in recording volume: the displayed volume
is completely off the chart

Change-Id: I4c363f369e5d72f332391a6f96457b4e450404f9

wm8731: document audiohw settings

2016-12-12T12:11:25+00:00

Change-Id: I78ec26a00a3e14a95c591ac81d96e1b480b9138e

imx233: slightly rework 3D audio setting

2016-12-12T11:15:24+00:00

The old code made the setting appear as 0dB, 1.5dB, 3dB and 4.5dB when
in fact it is 0dB, 3dB, 4.5dB and 6dB. This commit clarifies the code and
also fix this at the same time. This imx233 3D enhancement is complete crap anyway
but now you can satisfy yourself with 6 dB of pure crap, clearly an enhancement.

Change-Id: Ia3e088987c1ff0cdde228905ff70f46476a499a2

imx233: fix recording gain

2016-09-20T23:29:14+00:00

For some reason, there was a mismatch between the setting (decibel) and the
audiohw code (centicel). This resulted in a gain divided by 10. This may
explain why some people experienced low volume with the mic on the fuze+.

Change-Id: I138ac18dd93c36f43a7dfce735efc826405c598c