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Diffstat (limited to 'conf.d/project/lua.d/onload-audio-controls.lua')
| -rw-r--r-- | conf.d/project/lua.d/onload-audio-controls.lua | 162 |
1 files changed, 0 insertions, 162 deletions
diff --git a/conf.d/project/lua.d/onload-audio-controls.lua b/conf.d/project/lua.d/onload-audio-controls.lua deleted file mode 100644 index 24c4f71..0000000 --- a/conf.d/project/lua.d/onload-audio-controls.lua +++ /dev/null @@ -1,162 +0,0 @@ ---[[ - Copyright (C) 2016 "IoT.bzh" - Author Fulup Ar Foll <fulup@iot.bzh> - - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - - Unless required by applicable law or agreed to in writing, software - distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the License for the specific language governing permissions and - limitations under the License. - - - Provide sample policy function for AGL Advance Audio Agent ---]] - --- Global HAL registry -_Audio_Hal_Registry={} - --- Callback when receiving HAL registry -function _Alsa_Get_Hal_CB (error, result, context) - -- Initialise an empty table - local registry={} - - -- Only process when response is valid - if (error) then - AFB_ErrOr ("[Audio_Init_CB] ErrOr result=%s", result) - return - end - - -- Extract response from result - local response=result["response"] - - -- Index HAL Bindings APIs by shortname - for key,value in pairs(response) do - registry[value["shortname"]]=value["api"] - end - - -- store Exiting HAL for further use - printf ("-- [Audio_Init_CB] -- Audio_register_Hal=%s", Dump_Table(registry)) - _Audio_Hal_Registry=registry - -end - --- Function call at binding load time -function _Alsa_Get_Hal(args) - - printf ("[-- Audio_Get_Hal --] args=%s", Dump_Table(argsT)) - - -- Query AlsaCore for Active HALs (no query, no context) - AFB:service ('alsacore', 'hallist', {}, "_Alsa_Get_Hal_CB", {}) - -end - --- In sample configuration Query/Args parsing is common to all audio control -local function Audio_Parse_Request (source, args, query) - - local apihal={} - - -- In this test we expect targeted device to be given from query (could come for args as well) - if (query == nil ) then - AFB:error ("--LUA:Audio_Set_Navigation query should contain and args with targeted apihal|device") - return -- refuse control - end - - -- Alsa Hook plugin asound sample config provides target sound card by name - if (query["device"] ~= nil) then - apihal=_Audio_Hal_Registry[query["device"]] - end - - -- HTML5 test page provides directly HAL api. - if (query["apihal"] ~= nil) then - apihal= query["apihal"] - end - - -- if requested HAL is not found then deny the control - if (apihal == nil) then - AFB:error ("--LUA:Audio_Set_Navigation No Active HAL Found") - return -- refuse control - end - - -- return api or nil when not found - return apihal -end - --- Set Navigation lower sound when play -function _Audio_Set_Navigation(source, args, query) - - -- in strict mode every variables should be declared - local err=0 - local ctlhal={} - local response={} - local apihal={} - - AFB:notice ("LUA:Audio_Set_Use_Case source=%d args=%s query=%s", source, args, query); - - -- Parse Query/Args and if HAL not found then refuse access - apihal= Audio_Parse_Request (source, args, query) - if (apihal == nil) then return 1 end - - - -- if source < 0 then Alsa HookPlugin is closing PCM - if (source < 0) then - -- Ramp Up Multimedia channel synchronously - ctlhal={['label']='Master_Playback_Volume', ['val']=100} - err, response= AFB:servsync (apihal, 'ctlset',ctlhal) - else - -- Ramp Down Multimedia channel synchronously - ctlhal={['label']='Master_Playback_Volume', ['val']=50} - err, response= AFB:servsync (apihal, 'ctlset',ctlhal) - end - - if (err) then - AFB:error("--LUA:Audio_Set_Navigation halapi=%s refuse ctl=%s", apihal, ctlhal) - return 1 -- control refused - end - - - return 0 -- control accepted -end - - --- Select Multimedia mode -function _Audio_Set_Multimedia (source, args, query) - - -- in strict mode every variables should be declared - local err=0 - local ctlhal={} - local response={} - local apihal={} - - AFB:notice ("LUA:Audio_Set_Use_Case source=%d args=%s query=%s", source, args, query); - - -- Parse Query/Args and if HAL not found then refuse access - apihal= Audio_Parse_Request (source, args, query) - if (apihal == nil) then return 1 end - - - -- if Mumtimedia control only increase volume on open - if (source >= 0) then - -- Ramp Down Multimedia channel synchronously - ctlhal={['label']='Master_Playback_Volume', ['val']=100} - err, response= AFB:servsync (apihal, 'ctlset',ctlhal) - end - - if (err) then - AFB:error("--LUA:Audio_Set_Navigation halapi=%s refuse ctl=%s", apihal, ctlhal) - return 1 -- control refused - end - - - return 0 -- control accepted -end - --- Select Emergency Mode -function _Audio_Set_Emergency(source, args, query) - return 1 -- Always refuse in this test -end |