Commit Graph

12 Commits

Author SHA1 Message Date
Michael Sevakis fc9695eb47 Improve radio RDS driver and framework
* Remove unused bits like the radio event and simplify basic
radio interface. It can be more self-contained with rds.h only
required by radio and tuner code.

* Add post-processing to text a-la Silicon Labs AN243. The chip's
error correction can only do so much; additional checks are highly
recommended. Simply testing for two identical messages in a row
is extremely effective and I've never seen corrupted text since
doing that, even with mediocre reception.

Groups segments must arrive in order, not randomly; logic change
only accepts them in order, starting at 0.

Time readout was made a bit better but really we'd need to use
verbose mode and ensure that no errors were seen during receiving
of time and more checks would be need to have a stable PI. The
text is the important bit anyway.

* Time out of stale text.

* Text is no longer updated until a complete group has been
received, as is specified in the standard. Perhaps go back to
scrolling text lines in the radio screen?

* Add proper character conversion to UTF-8. Only the default G0
table for the moment. The other two could be added in.

* Add variants "RDS_CFG_PROCESS" and "RDS_CFG_PUSH" to allow
the option for processed RDS data to be pushed to the driver and
still do proper post-processing (only text conversion for now for
the latter).

Change-Id: I4d83f8b2e89a209a5096d15ec266477318c66925
2017-02-11 22:19:32 -05:00
Michael Sevakis 2403f38c1f RDS: Use a define that doesn't imply any particular hardware dependency.
Theoretically, anything with the capability could implement the decoding
action in an ISR on any radio chip supporting RDS.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31464 a1c6a512-1295-4272-9138-f99709370657
2011-12-29 14:55:49 +00:00
Michael Sevakis 7b596416bf Gigabeat S: Update RDS processing to use asynchronous I2C rather than thread.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31462 a1c6a512-1295-4272-9138-f99709370657
2011-12-29 12:02:49 +00:00
Bertrik Sikken 8c19dcd598 FS#12370: Initial RDS support for Si4701/Si4703 tuner (beast and clip zip)
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31346 a1c6a512-1295-4272-9138-f99709370657
2011-12-17 20:24:19 +00:00
Jonathan Gordon 3806584dbe fix reds, not so nice fiddling with simulator stubs to make it all works
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28614 a1c6a512-1295-4272-9138-f99709370657
2010-11-18 11:57:51 +00:00
Bertrik Sikken de870b3ee0 Signal strength meter for FM radio - FS#8151 by Przemysław Hołubowski
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28559 a1c6a512-1295-4272-9138-f99709370657
2010-11-11 21:13:29 +00:00
Bertrik Sikken adc472bec5 FM tuner region code cleanup - FS #11492 by me.
This removes the tuner-specific region structs and makes each driver use the common one (which is now extended with a deemphasis field)


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27579 a1c6a512-1295-4272-9138-f99709370657
2010-07-26 20:15:16 +00:00
Bertrik Sikken fcea117d21 Support for mystery FM chip in some Sansa Clip+, FS #11403 by me
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26864 a1c6a512-1295-4272-9138-f99709370657
2010-06-15 20:57:48 +00:00
Michael Sevakis 1fea6f6b22 Make si4700 tuner driver more sane with bit and field defines and entirely hide strange i2c interface from code with write/set/clear/masked functionality. On Gigabeat S use by-the-book busmode selection and GPIO lines. Implement some primitive station detection, debug registers in screen, and misc. changes to tie things together.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19600 a1c6a512-1295-4272-9138-f99709370657
2008-12-27 19:18:50 +00:00
Bertrik Sikken 641e4fd885 Fix inverted de-emphasis bit for si470x FM chip.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19566 a1c6a512-1295-4272-9138-f99709370657
2008-12-23 18:22:00 +00:00
Nils Wallménius 65f61d6cce FS#9609 FM radio support for the Gigabeat S, seeking/scanning is not yet
implemented but manual tuning works nicely. Thanks to Rafaël Carré,
Bertrik Sikken and Robert Menes for suggestions and debugging help.



git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19372 a1c6a512-1295-4272-9138-f99709370657
2008-12-09 20:48:04 +00:00
Dave Chapman e25c1c6e43 Add more driver stubs to make the Fuze and e200v2 main builds compile; Correct the memory definition for the Fuze (8MB)
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19090 a1c6a512-1295-4272-9138-f99709370657
2008-11-11 14:46:13 +00:00