From: Tomasz Maciej Nowak <tomek_n@o2.pl>
Date: Wed, 13 Mar 2019 16:44:22 +0000 (+0100)
Subject: ath79: qca955x: add wmac migration hotplug event
X-Git-Tag: v19.07.0-rc1~1018
X-Git-Url: http://git.openwrt.org/?p=openwrt%2Fopenwrt.git;a=commitdiff_plain;h=9fd2a3faa5c90975670f99ec0c06a682807d7fe9

ath79: qca955x: add wmac migration hotplug event

When upgrading from ar71xx target images to ath79 based ones, the
integrated wireless interface changes its sysfs path. Therefore the
previous enabled wireless interface will be disabled, which can cause
false complains about it not working. This commit adds hotplug event
which migrates to new path and will keep the wrireless interface
enabled after upgrade.

Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>
---

diff --git a/target/linux/ath79/base-files/etc/hotplug.d/ieee80211/00-wmac-migration b/target/linux/ath79/base-files/etc/hotplug.d/ieee80211/00-wmac-migration
new file mode 100644
index 0000000000..b86db0dbcc
--- /dev/null
+++ b/target/linux/ath79/base-files/etc/hotplug.d/ieee80211/00-wmac-migration
@@ -0,0 +1,32 @@
+#!/bin/sh
+
+WMAC_PATH_CHANGED=0
+
+. /lib/functions.sh
+
+migrate_wmac_path() {
+	local section="$1"
+	local path
+
+	config_get path ${section} path
+	case ${path} in
+		"platform/qca955x_wmac")
+			path="platform/ahb/ahb:apb/18100000.wmac"
+			WMAC_PATH_CHANGED=1
+		;;
+		*)
+			return 0
+		;;
+	esac
+
+	uci set wireless.${section}.path=${path}
+}
+
+[ "${ACTION}" = "add" ] && {
+	[ ! -e /etc/config/wireless ] && return 0
+
+	config_load wireless
+	config_foreach migrate_wmac_path wifi-device
+
+	[ "${WMAC_PATH_CHANGED}" = "1" ] && uci commit wireless
+}