76 lines
2.2 KiB
Lua
76 lines
2.2 KiB
Lua
-- WirePlumber
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--
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-- Copyright © 2022 Collabora Ltd.
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--
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-- SPDX-License-Identifier: MIT
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--
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-- Find the best profile for a device based on profile priorities and
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-- availability
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cutils = require ("common-utils")
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log = Log.open_topic ("s-device")
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SimpleEventHook {
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name = "device/find-best-profile",
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after = "device/find-preferred-profile",
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before = "device/apply-profile",
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interests = {
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EventInterest {
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Constraint { "event.type", "=", "select-profile" },
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},
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},
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execute = function (event)
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local selected_profile = event:get_data ("selected-profile")
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-- skip hook if profile is already selected
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if selected_profile then
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return
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end
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local device = event:get_subject ()
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local dev_name = device.properties["device.name"] or ""
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local off_profile = nil
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local best_profile = nil
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local unk_profile = nil
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-- Takes absolute priority if available or unknown
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local profile_prop = device.properties["device.profile"]
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for p in device:iterate_params ("EnumProfile") do
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profile = cutils.parseParam (p, "EnumProfile")
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if profile and profile.name == profile_prop and profile.available ~= "no" then
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selected_profile = profile
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goto profile_set
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elseif profile and profile.name ~= "pro-audio" then
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if profile.name == "off" then
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off_profile = profile
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elseif profile.available == "yes" then
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if best_profile == nil or profile.priority > best_profile.priority then
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best_profile = profile
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end
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elseif profile.available ~= "no" then
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if unk_profile == nil or profile.priority > unk_profile.priority then
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unk_profile = profile
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end
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end
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end
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end
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if best_profile ~= nil then
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selected_profile = best_profile
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elseif unk_profile ~= nil then
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selected_profile = unk_profile
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elseif off_profile ~= nil then
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selected_profile = off_profile
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end
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::profile_set::
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if selected_profile then
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log:info (device, string.format (
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"Found best profile '%s' (%d) for device '%s'",
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selected_profile.name, selected_profile.index, dev_name))
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event:set_data ("selected-profile", selected_profile)
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end
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end
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}:register()
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