brcm47xx: rework model detection

On brcm47xx boards, the model ID is the combination of the "boardtype" nvram
variable and an optional supplemental "boardnum" variable while the human
readable model name is usually exposed in the "machine" field of the
/proc/cpuinfo file.

Move the extraction of the board nvram variables and model name string into
the 01_sysinfo file and rework the 01_detect board configuration script to
solely use the prepared sysinfo values without performing own detection
logic.

As a consequence, we can drop the ucidef_set_board_id() and
ucidef_set_model_name() invocations in favor to the generic behaviour
which copies the /tmp/sysinfo/{board_name,model} values into the board.json
"id" and "name" fields respectively.

Since "01_detect" only contains network configuration logic after this
change, move it to "01_network" and rename the contained "detect_by_xxx"
functions to "configure_by_xxx" instead, to avoid potential confusion.

Fixes FS#1576
Acked-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Jo-Philipp Wich <jo@mein.io>

(cherry picked from commit d7d10f2c1e8511fe07c9760e85f2272a85168f8d)

1 files changed, 195 insertions, 0 deletions

diff --git a/target/linux/brcm47xx/base-files/etc/board.d/01_network b/target/linux/brcm47xx/base-files/etc/board.d/01_network
new file mode 100755
index 0000000000..762dd21397
--- /dev/null
+++ b/target/linux/brcm47xx/base-files/etc/board.d/01_network
@@ -0,0 +1,195 @@
+#!/bin/sh /etc/rc.common
+# Copyright (C) 2006-2015 OpenWrt.org
+
+. /lib/functions/system.sh
+. /lib/functions/uci-defaults.sh
+
+configure_by_vlanports() {
+	local vlan0ports="$(nvram get vlan0ports)"
+	local vlan1ports="$(nvram get vlan1ports)"
+	local vlan2ports="$(nvram get vlan2ports)"
+	local cpuport="$(swconfig dev switch0 help 2>/dev/null | sed -ne "s|.*cpu @ \([0-9]*\).*|\1|p")"
+
+	if [ "${vlan0ports:0:9}" = "0 1 2 3 8" -a "${vlan1ports:0:3}" = "4 8" -a ${cpuport:-0} -eq 8 ] || \
+	   [ "${vlan1ports:0:9}" = "0 1 2 3 8" -a "${vlan2ports:0:3}" = "4 8" -a ${cpuport:-0} -eq 8 ] || \
+	   [ "${vlan2ports:0:9}" = "0 1 2 3 8" -a "${vlan1ports:0:3}" = "4 8" -a ${cpuport:-0} -eq 8 ];
+	then
+		ucidef_add_switch "switch0" \
+			"0:lan" "1:lan" "2:lan" "3:lan" "4:wan" "8@eth0"
+
+	elif [ "${vlan0ports:0:9}" = "1 2 3 4 8" -a "${vlan1ports:0:3}" = "0 8" -a ${cpuport:-0} -eq 8 ] || \
+	     [ "${vlan1ports:0:9}" = "1 2 3 4 8" -a "${vlan2ports:0:3}" = "0 8" -a ${cpuport:-0} -eq 8 ] || \
+	     [ "${vlan2ports:0:9}" = "1 2 3 4 8" -a "${vlan1ports:0:3}" = "0 8" -a ${cpuport:-0} -eq 8 ];
+	then
+		ucidef_add_switch "switch0" \
+			"1:lan" "2:lan" "3:lan" "4:lan" "0:wan" "8@eth0"
+
+	elif [ "${vlan0ports:0:9}" = "0 1 2 3 5" -a "${vlan1ports:0:3}" = "4 5" -a ${cpuport:-0} -eq 5 ] || \
+		 [ "${vlan1ports:0:9}" = "0 1 2 3 5" -a "${vlan2ports:0:3}" = "4 5" -a ${cpuport:-0} -eq 5 ] || \
+		 [ "${vlan2ports:0:9}" = "0 1 2 3 5" -a "${vlan1ports:0:3}" = "4 5" -a ${cpuport:-0} -eq 5 ];
+	then
+		ucidef_add_switch "switch0" \
+			"0:lan" "1:lan" "2:lan" "3:lan" "4:wan" "5@eth0"
+
+	elif [ "${vlan0ports:0:9}" = "1 2 3 4 5" -a "${vlan1ports:0:3}" = "0 5" -a ${cpuport:-0} -eq 5 ] || \
+	     [ "${vlan1ports:0:9}" = "1 2 3 4 5" -a "${vlan2ports:0:3}" = "0 5" -a ${cpuport:-0} -eq 5 ] || \
+	     [ "${vlan2ports:0:9}" = "1 2 3 4 5" -a "${vlan1ports:0:3}" = "0 5" -a ${cpuport:-0} -eq 5 ];
+	then
+		ucidef_add_switch "switch0" \
+			"1:lan" "2:lan" "3:lan" "4:lan" "0:wan" "5@eth0"
+
+	else
+		logger -t "01_detect" "Unable to determine network configuration"
+		ucidef_set_interface_lan "eth0"
+	fi
+}
+
+configure_by_boardnum() {
+	local boardnum="$1"
+
+	case "$boardnum" in
+	# WAP54G, Sitecom WL-105b
+	"2" | \
+	"1024")
+		ucidef_set_interface_lan "eth0"
+		;;
+
+	# Generic detection fallback
+	*)
+		configure_by_vlanports
+		;;
+	esac
+}
+
+configure_by_boardtype() {
+	local boardtype="$1"
+	local boardnum="$2"
+
+	case "$boardtype" in
+	"bcm94710r4")
+		ucidef_set_interfaces_lan_wan "eth0" "eth1"
+		;;
+
+	"0x0467")
+		ucidef_add_switch "switch0" \
+			"0:lan" "1:lan" "2:lan" "3:lan" "4:wan" "5@eth0"
+		;;
+
+	"0x042f" | \
+	"0x0472")
+		# WL-500gP
+		if [ "$boardnum" = "45" ]; then
+			ucidef_add_switch "switch0" \
+				"0:wan" "1:lan" "2:lan" "3:lan" "4:lan" "5@eth0"
+
+		# Generic BCM94704
+		else
+			ucidef_set_interface_wan "eth1"
+			ucidef_add_switch "switch0" \
+				"0:lan" "1:lan" "2:lan" "3:lan" "4:lan" "5@eth0"
+
+			# MAC addresses on 4704 tend to be screwed up. Add a workaround here
+			local mac="$(nvram get et0macaddr)"
+			local pat="[0-9a-fA-F][0-9a-fA-F]:[0-9a-fA-F][0-9a-fA-F]"
+				  pat="$pat:[0-9a-fA-F][0-9a-fA-F]:[0-9a-fA-F][0-9a-fA-F]"
+				  pat="$pat:[0-9a-fA-F][0-9a-fA-F]:[0-9a-fA-F][0-9a-fA-F]"
+
+			case "$mac" in
+			$pat)
+				ucidef_set_interface_macaddr "lan" "$mac"
+				ucidef_set_interface_macaddr "wan" "$(macaddr_add "$mac" 1)"
+				;;
+			esac
+		fi
+		;;
+
+	# Buffalo WBR-B11 and Buffalo WBR-G54
+	"bcm94710ap")
+		ucidef_set_interface_wan "eth1"
+		ucidef_add_switch "switch0" \
+			"0:lan" "1:lan" "2:lan" "3:lan" "4:lan" "5@eth0"
+		;;
+
+	*)
+		configure_by_boardnum "$boardnum"
+		;;
+	esac
+}
+
+configure_by_model() {
+	local model="$1"
+	local boardtype="$2"
+	local boardnum="$3"
+
+	# Netgear WGT634U exception
+	if grep -sqE 'mtd0: 000(6|a)0000' /proc/mtd; then
+		ucidef_add_switch "switch0" \
+			"0:lan" "1:lan" "2:lan" "3:lan" "4:wan" "5@eth0"
+		return
+	fi
+
+	case "$model" in
+	"Asus WLHDD" | \
+	"Asus WL300G")
+		ucidef_set_interface_lan "eth1"
+		;;
+
+	"Asus WL330GE")
+		ucidef_add_switch "switch0" "4:lan" "5t@eth0"
+		;;
+
+	"Asus WL500G" | \
+	"Microsoft MN-700")
+		ucidef_set_interfaces_lan_wan "eth0" "eth1"
+		;;
+
+	"Asus RT-N12"* | \
+	"Asus WL500GP V2" | \
+	"Buffalo WHR-G125" | \
+	"D-Link DIR-330" | \
+	"Motorola WR850G" | \
+	"Siemens SE505 V2")
+		ucidef_add_switch "switch0" \
+			"0:lan" "1:lan" "2:lan" "3:lan" "4:wan" "5@eth0"
+		;;
+
+	"Asus WL700")
+		ucidef_add_switch "switch0" \
+			"0:wan" "1:lan" "2:lan" "3:lan" "4:lan" "5@eth0"
+		;;
+
+	"Asus WL500W" | \
+	"Dell TrueMobile 2300")
+		ucidef_set_interface_wan "eth1"
+		ucidef_add_switch "switch0" \
+			"0:lan" "1:lan" "2:lan" "3:lan" "5@eth0"
+		;;
+
+	"Asus RT-N16"* | \
+	"Linksys E3000 V1")
+		ucidef_add_switch "switch0" \
+			"0:wan" "1:lan:4" "2:lan:3" "3:lan:2" "4:lan:1" "8@eth0"
+		;;
+
+	*)
+		configure_by_boardtype "$boardtype" "$boardnum"
+		;;
+	esac
+}
+
+
+model="$(cat /tmp/sysinfo/model)"
+boardtype="$(board_name)"
+
+case "$boardtype" in
+	*:*)
+		boardnum="${boardtype##*:}"
+		boardtype="${boardtype%:*}"
+	;;
+esac
+
+board_config_update
+
+configure_by_model "$model" "$boardtype" "$boardnum"
+
+board_config_flush