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2023-01-19Repurpose into gRPC servicequillback_17.0.0quillback/17.0.017.0.0Scott Murray1-25/+0
Repurpose repository into a spiritual successor of the previous binding. The backend code is retained behind a new gRPC API defined in protos/radio.proto. The simpler synchronous gRPC API had been used for expediency, this may warrant revisiting to rework into an async or callback API based server instead. As well, authentication has been left until some consensus on an approach can be worked out. Bug-AGL: SPEC-4665 Signed-off-by: Scott Murray <scott.murray@konsulko.com> Change-Id: I28b122ce6e0ecfc7504aa08b90394cb1b9e22976 (cherry picked from commit dd23c157bdba1b25bbb50cdb99a60aa597735f43)
2018-03-20Add Kingfisher Si4689 supportHarunobu Kurokawa1-0/+25
Add conditionally compilable support for the Si4689 radio on the M3ULCB Kingfisher infotainment board. The codebase has been refactored to allow multiple radio implementations, and when Kingfisher support is enabled, the binding will first look for a USB RTL-SDR adapter, then fallback to the Kingfisher Si4689 if one is not found. This allows easily switching to a RTL-SDR adapter if this initial Kingfisher support encounters issues. The back end implementation relies on a patched version of the "si_ctl" utility from Cogent Embedded's Kingfisher BSP changes. The modifications to it add FM band plan selection and scanning threshold tweaking for poor radio environments. Audio output is achieved by looping the radio's PulseAudio source to the appropriate sink depending on 4A or non-4A operation. For 4A compatibility, the PulseAudio source is created if it does not exist, which currently is the case due to PulseAudio's udev module being disabled when 4A is enabled. Additionally, the FM band plan for Japan has been corrected to go to 95 MHz, and a README.md file has been added documenting the optional configuration that can be done via /etc/xdg/AGL.conf for band plan selection and scanning sensitivity. Change-Id: I204906fed741d917fc3b8be962deadb4e59989db Signed-off-by: Scott Murray <scott.murray@konsulko.com> Signed-off-by: Harunobu Kurokawa <harunobu.kurokawa.dn@renesas.com>