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From 4cfceb1e257a91cf5c1d29f28d1305607bbf58eb Mon Sep 17 00:00:00 2001
From: Jaroslav Kysela <perex@perex.cz>
Date: Wed, 3 Feb 2021 17:13:01 +0100
Subject: [PATCH] ucm2: Separate the configuration lookups (hw based) from the
configuration tree
Introduce ucm2/conf.d/ tree with symlinks to the real hardware configurations.
In this way, we do not rely to create the configuration paths based on
simple driver / device identification, but we can store the configurations
more logically to make the maintenance (code reuse, multiple changes)
more easy.
This commit keeps the older lookup paths active, but they will be
turned off in the next release.
BugLink: https://github.com/alsa-project/alsa-ucm-conf/pull/70
BugLink: https://github.com/alsa-project/alsa-ucm-conf/pull/76
BugLink: https://github.com/alsa-project/alsa-ucm-conf/pull/78
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
---
ucm2/ucm.conf | 40 +++++++++++++++++++++++++++++++++++-----
1 file changed, 35 insertions(+), 5 deletions(-)
diff --git a/ucm2/ucm.conf b/ucm2/ucm.conf
index 9e78df118f83..8577c300e46b 100644
--- a/ucm2/ucm.conf
+++ b/ucm2/ucm.conf
@@ -14,8 +14,9 @@
Syntax 3
Define.V1 "" # non-empty string to enable ucm v1 paths
-Define.V2Module yes # empty string to disable
-Define.V2Name yes # empty string to disable
+Define.V2ConfD yes # empty string to disable
+Define.V2Module yes # non-empty string to enable module name lookups (obsolete)
+Define.V2Name yes # non-empty string to enable driver & card name lookups (obsolete)
If.driver {
Condition {
@@ -40,11 +41,40 @@ If.driver {
#
# The probed path when hw-card is found:
#
- # ucm2/${KernelModule}/${KernelModule}.conf
- # ucm2/${CardDriver}/${CardLongName}.conf
- # ucm2/${CardDriver}/${CardDriver}.conf
+ # ucm2/conf.d/[${CardDriver}|${KernelDriver}]/${CardLongName}.conf
+ # ucm2/conf.d/[${CardDriver}|${KernelDriver}]/[${CardDriver}|${KernelDriver}].conf
+ # ucm2/${KernelModule}/${KernelModule}.conf (obsolete)
+ # ucm2/${CardDriver}/${CardLongName}.conf (obsolete)
+ # ucm2/${CardDriver}/${CardDriver}.conf (obsolete)
#
+ If.V2ConfD {
+ Condition {
+ Type String
+ Empty "${var:V2ConfD}"
+ }
+ False {
+ Define.Driver "${CardDriver}"
+ If.nodrv {
+ Condition {
+ Type String
+ Empty "${var:Driver}"
+ }
+ True.Define {
+ KernelDriverPath "class/sound/card${CardNumber}/device/driver"
+ Driver "${sys:$KernelDriverPath}"
+ }
+ }
+ UseCasePath.confd1 {
+ Directory "conf.d/${var:Driver}"
+ File "${CardLongName}.conf"
+ }
+ UseCasePath.confd2 {
+ Directory "conf.d/${var:Driver}"
+ File "${var:Driver}.conf"
+ }
+ }
+ }
If.V2Module {
Condition {
Type String
--
2.30.0
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