wwan: add a generic 3g/4g proto

this proto handler will detect which of 3g, qmi, mbim, ncm or directip you need
for a stick and setup uci automagically

Signed-off-by: John Crispin <blogic@openwrt.org>

SVN-Revision: 42837

4 files changed, 195 insertions, 0 deletions

diff --git a/package/network/utils/wwan/Makefile b/package/network/utils/wwan/Makefile
new file mode 100644
index 0000000000..f114a359db
--- /dev/null
+++ b/package/network/utils/wwan/Makefile
@@ -0,0 +1,33 @@
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=wwan
+PKG_VERSION:=2014-07-17
+PKG_RELEASE=1
+
+PKG_LICENSE:=GPLv2
+PKG_LICENSE_FILES:=
+
+PKG_MAINTAINER:=John Crispin <blogic@openwrt.org>
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/wwan
+  SECTION:=net
+  CATEGORY:=Network
+  TITLE:=Generic OpenWrt 3G/4G proto handler
+endef
+
+define Build/Compile
+	true
+endef
+
+define Package/wwan/install
+	$(INSTALL_DIR) $(1)/lib/netifd/proto/
+	$(CP) ./files/wwan.sh $(1)/lib/netifd/proto/
+	$(INSTALL_DIR) $(1)/etc/hotplug.d/usb
+	$(INSTALL_BIN) ./files/wwan.usb $(1)/etc/hotplug.d/usb/00_wwan.sh
+	$(INSTALL_DIR) $(1)/etc/hotplug.d/usbmisc
+	$(INSTALL_BIN) ./files/wwan.usbmisc $(1)/etc/hotplug.d/usbmisc/00_wwan.sh
+endef
+
+$(eval $(call BuildPackage,wwan))
diff --git a/package/network/utils/wwan/files/wwan.sh b/package/network/utils/wwan/files/wwan.sh
new file mode 100755
index 0000000000..6b33600b32
--- /dev/null
+++ b/package/network/utils/wwan/files/wwan.sh
@@ -0,0 +1,119 @@
+#!/bin/sh
+
+. /lib/functions.sh
+. ../netifd-proto.sh
+init_proto "$@"
+
+INCLUDE_ONLY=1
+
+ctl_device=""
+dat_device=""
+
+proto_mbim_setup() { echo "wwan[$$] mbim proto is missing"; }
+proto_qmi_setup() { echo "wwan[$$] qmi proto is missing"; }
+proto_ncm_setup() { echo "wwan[$$] ncm proto is missing"; }
+proto_3g_setup() { echo "wwan[$$] 3g proto is missing"; }
+proto_directip_setup() { echo "wwan[$$] directip proto is missing"; }
+
+[ -f ./mbim.sh ] && . ./mbim.sh
+[ -f ./ncm.sh ] && . ./ncm.sh
+[ -f ./qmi.sh ] && . ./qmi.sh
+[ -f ./3g.sh ] && { . ./ppp.sh; . ./3g.sh; }
+[ -f ./directip.sh ] && . ./directip.sh
+
+proto_wwan_init_config() {
+	available=1
+	no_device=1
+
+	proto_config_add_string apn
+	proto_config_add_string auth
+	proto_config_add_string username
+	proto_config_add_string password
+	proto_config_add_string pincode
+	proto_config_add_string delay
+	proto_config_add_string modes
+}
+
+proto_wwan_setup() {
+	local driver usb devicename desc
+
+	for a in `ls /sys/bus/usb/devices`; do
+		local vendor product
+		[ -z "$usb" -a -f /sys/bus/usb/devices/$a/idVendor -a -f /sys/bus/usb/devices/$a/idProduct ] || continue
+		vendor=$(cat /sys/bus/usb/devices/$a/idVendor)
+		product=$(cat /sys/bus/usb/devices/$a/idProduct)
+		[ -f /lib/network/wwan/$vendor:$product ] && {
+			usb=/lib/network/wwan/$vendor:$product
+			devicename=$a
+		}
+	done
+
+	[ -n "$usb" ] && {
+		local old_cb control data
+
+		json_set_namespace wwan old_cb
+		json_init
+		json_load "$(cat $usb)"
+		json_select
+		json_get_vars desc control data
+		json_set_namespace $old_cb
+
+		[ -n "$control" -a -n "$data" ] && {
+			ttys=$(ls -d /sys/bus/usb/devices/$devicename/${devicename}*/tty* | sed "s/.*\///g" | tr "\n" " ")
+			ctl_device=/dev/$(echo $ttys | cut -d" " -f $((control + 1)))
+			dat_device=/dev/$(echo $ttys | cut -d" " -f $((data + 1)))
+			driver=comgt
+		}
+	}
+
+	[ -z "$ctl_device" ] && for net in $(ls /sys/class/net/ | grep wwan); do
+		[ -z "$ctl_device" ] || continue
+		driver=$(grep DRIVER /sys/class/net/$net/device/uevent | cut -d= -f2)
+		case "$driver" in
+		qmi_wwan|cdc_mbim)
+			ctl_device=/dev/$(ls /sys/class/net/$net/device/usbmisc)
+			;;
+		sierra_net|*cdc_ncm)
+			ctl_device=/dev/$(cd /sys/class/net/$net/; find ../../../ -name ttyUSB* |xargs basename | head -n1)
+			;;
+		*) continue;;
+		esac
+		echo "wwan[$$]" "Using proto:$proto device:$ctl_device iface:$net desc:$desc"
+	done
+
+	[ -n "$ctl_device" ] || {
+		echo "wwan[$$]" "No valid device was found"
+		proto_notify_error "$interface" NO_DEVICE
+		proto_block_restart "$interface"
+		return 1
+	}
+
+	uci_set_state network $interface driver "$driver"
+	uci_set_state network $interface ctl_device "$ctl_device"
+	uci_set_state network $interface dat_device "$dat_device"
+
+	case $driver in
+	qmi_wwan)	proto_qmi_setup $@ ;;
+	cdc_mbim)	proto_mbim_setup $@ ;;
+	sierra_net)	proto_directip_setup $@ ;;
+	comgt)		proto_3g_setup $@ ;;
+	*cdc_ncm)	proto_ncm_setup $@ ;;
+	esac
+}
+
+proto_wwan_teardown() {
+	local interface=$1
+	local driver=$(uci_get_state network $interface driver)
+	ctl_device=$(uci_get_state network $interface ctl_device)
+	dat_device=$(uci_get_state network $interface dat_device)
+
+	case $driver in
+	qmi_wwan)	proto_qmi_teardown $@ ;;
+	cdc_mbim)	proto_mbim_teardown $@ ;;
+	sierra_net)	proto_mbim_teardown $@ ;;
+	comgt)		proto_3g_teardown $@ ;;
+	*cdc_ncm)	proto_ncm_teardown $@ ;;
+	esac
+}
+
+add_protocol wwan
diff --git a/package/network/utils/wwan/files/wwan.usb b/package/network/utils/wwan/files/wwan.usb
new file mode 100644
index 0000000000..507b002d14
--- /dev/null
+++ b/package/network/utils/wwan/files/wwan.usb
@@ -0,0 +1,18 @@
+[ "$ACTION" = add -a "$DEVTYPE" = usb_device ] || exit 0
+
+vid=$(cat /sys$DEVPATH/idVendor)
+pid=$(cat /sys$DEVPATH/idProduct)
+[ -f "/lib/network/wwan/$vid:$pid" ] || exit 0
+
+find_wwan_iface() {
+	local cfg="$1"
+	local proto
+	config_get proto "$cfg" proto
+	[ "$proto" = wwan ] || return 0
+	proto_set_available "$cfg" 1
+	ifup $cfg
+	exit 0
+}
+
+config_load network
+config_foreach find_wwan_iface interface
diff --git a/package/network/utils/wwan/files/wwan.usbmisc b/package/network/utils/wwan/files/wwan.usbmisc
new file mode 100644
index 0000000000..404a5cc0a6
--- /dev/null
+++ b/package/network/utils/wwan/files/wwan.usbmisc
@@ -0,0 +1,25 @@
+#!/bin/sh
+
+[ "$ACTION" = add ] || exit 0
+[ "${DEVNAME/[0-9]/}" = cdc-wdm ] || exit 0
+
+. /lib/functions.sh
+. /lib/netifd/netifd-proto.sh
+
+find_wwan_iface() {
+	local cfg="$1"
+
+	local proto device
+	config_get proto "$cfg" proto
+	config_get device "$cfg" device
+
+	[ "$proto" = wwan ] || [ "$proto" = mbim ] || [ "$proto" = qmi ] || return 0
+	[ -z "$device" -a "$proto" = wwan ] || [ "$device" = "/dev/$DEVNAME" ] || return 0
+
+	proto_set_available "$cfg" 1
+	ifup "$cfg"
+	exit 0
+}
+
+config_load network
+config_foreach find_wwan_iface interface